[linux-merge]linux integration; annotated tag, v6.6-rc3, created. v6.6-rc3
by postmasterï¼ open-mesh.org 24 Sep '23
by postmasterï¼ open-mesh.org 24 Sep '23
24 Sep '23
The annotated tag, v6.6-rc3 has been created
at 5ef2a08c5e91424d33ee5a5ef804a87e8e69419f (tag)
tagging 6465e260f48790807eef06b583b38ca9789b6072 (commit)
replaces v6.6-rc2
tagged by Linus Torvalds
on Sun Sep 24 14:31:13 2023 -0700
- Shortlog ------------------------------------------------------------
Linux 6.6-rc3
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linux integration
1
0
[linux-merge]linux integration; branch, batadv/net-next, updated. v6.6-rc1-4-g0ecfbd96cb67
by postmasterï¼ open-mesh.org 24 Sep '23
by postmasterï¼ open-mesh.org 24 Sep '23
24 Sep '23
The following commit has been merged in the batadv/net-next branch:
commit 7f6efbccf7848b9cf792e8ebdd8b0ea3b009348c
Author: Linus Lüssing <linus.luessing(a)c0d3.blue>
Date: Thu Sep 7 03:09:09 2023 +0200
batman-adv: mcast: implement multicast packet generation
Implement the preparation of a batman-adv multicast packet and use this
under certain conditions.
For one thing this implements the capability to push a complete
batman-adv multicast packet header, including a tracker TVLV with all
originator destinations that have signaled interest in it, onto a given
ethernet frame with an IP multicast packet inside.
For another checks are implemented to determine if encapsulating a
multicast packet in this new batman-adv multicast packet type and using
it is feasible. Those checks are:
1) Have all nodes signaled that they are capable of handling the new
batman-adv multicast packet type?
2) Do all active hard interfaces of all nodes, including us, have an MTU
of at least 1280 bytes?
3) Does a complete multicast packet header with all its destination
addresses fit onto the given multicast packet / ethernet frame and
does not exceed 1280 bytes?
If all checks passed then the new batman-adv multicast packet type will
be used for transmission and distribution. Otherwise we fall back to one or
more batman-adv unicast packet transmissions, if possible. Or if not
possible we will fall back to classic flooding through a batman-adv
broadcast packet.
Signed-off-by: Linus Lüssing <linus.luessing(a)c0d3.blue>
Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de>
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index dfc2c645b13f..62288afdad49 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -1169,17 +1169,62 @@ static int batadv_mcast_forw_rtr_count(struct batadv_priv *bat_priv,
}
}
+/**
+ * batadv_mcast_forw_mode_by_count() - get forwarding mode by count
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the multicast packet to check
+ * @vid: the vlan identifier
+ * @is_routable: stores whether the destination is routable
+ * @count: the number of originators the multicast packet need to be sent to
+ *
+ * For a multicast packet with multiple destination originators, checks which
+ * mode to use. For BATADV_FORW_MCAST it also encapsulates the packet with a
+ * complete batman-adv multicast header.
+ *
+ * Return:
+ * BATADV_FORW_MCAST: If all nodes have multicast packet routing
+ * capabilities and an MTU >= 1280 on all hard interfaces (including us)
+ * and the encapsulated multicast packet with all destination addresses
+ * would still fit into an 1280 bytes batman-adv multicast packet
+ * (excluding the outer ethernet frame) and we could successfully push
+ * the full batman-adv multicast packet header.
+ * BATADV_FORW_UCASTS: If the packet cannot be sent in a batman-adv
+ * multicast packet and the amount of batman-adv unicast packets needed
+ * is smaller or equal to the configured multicast fanout.
+ * BATADV_FORW_BCAST: Otherwise.
+ */
+static enum batadv_forw_mode
+batadv_mcast_forw_mode_by_count(struct batadv_priv *bat_priv,
+ struct sk_buff *skb, unsigned short vid,
+ int is_routable, int count)
+{
+ unsigned int mcast_hdrlen = batadv_mcast_forw_packet_hdrlen(count);
+ u8 own_tvlv_flags = bat_priv->mcast.mla_flags.tvlv_flags;
+
+ if (!atomic_read(&bat_priv->mcast.num_no_mc_ptype_capa) &&
+ own_tvlv_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA &&
+ skb->len + mcast_hdrlen <= IPV6_MIN_MTU &&
+ batadv_mcast_forw_push(bat_priv, skb, vid, is_routable, count))
+ return BATADV_FORW_MCAST;
+
+ if (count <= atomic_read(&bat_priv->multicast_fanout))
+ return BATADV_FORW_UCASTS;
+
+ return BATADV_FORW_BCAST;
+}
+
/**
* batadv_mcast_forw_mode() - check on how to forward a multicast packet
* @bat_priv: the bat priv with all the soft interface information
* @skb: the multicast packet to check
+ * @vid: the vlan identifier
* @is_routable: stores whether the destination is routable
*
* Return: The forwarding mode as enum batadv_forw_mode.
*/
enum batadv_forw_mode
batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
- int *is_routable)
+ unsigned short vid, int *is_routable)
{
int ret, tt_count, ip_count, unsnoop_count, total_count;
bool is_unsnoopable = false;
@@ -1209,10 +1254,8 @@ batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
else if (unsnoop_count)
return BATADV_FORW_BCAST;
- if (total_count <= atomic_read(&bat_priv->multicast_fanout))
- return BATADV_FORW_UCASTS;
-
- return BATADV_FORW_BCAST;
+ return batadv_mcast_forw_mode_by_count(bat_priv, skb, vid, *is_routable,
+ total_count);
}
/**
@@ -1772,6 +1815,31 @@ static void batadv_mcast_want_rtr6_update(struct batadv_priv *bat_priv,
}
}
+/**
+ * batadv_mcast_have_mc_ptype_update() - update multicast packet type counter
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig: the orig_node which multicast state might have changed of
+ * @mcast_flags: flags indicating the new multicast state
+ *
+ * If the BATADV_MCAST_HAVE_MC_PTYPE_CAPA flag of this originator, orig, has
+ * toggled then this method updates the counter accordingly.
+ */
+static void batadv_mcast_have_mc_ptype_update(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig,
+ u8 mcast_flags)
+{
+ lockdep_assert_held(&orig->mcast_handler_lock);
+
+ /* switched from flag set to unset */
+ if (!(mcast_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA) &&
+ orig->mcast_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA)
+ atomic_inc(&bat_priv->mcast.num_no_mc_ptype_capa);
+ /* switched from flag unset to set */
+ else if (mcast_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA &&
+ !(orig->mcast_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA))
+ atomic_dec(&bat_priv->mcast.num_no_mc_ptype_capa);
+}
+
/**
* batadv_mcast_tvlv_flags_get() - get multicast flags from an OGM TVLV
* @enabled: whether the originator has multicast TVLV support enabled
@@ -1840,6 +1908,7 @@ static void batadv_mcast_tvlv_ogm_handler(struct batadv_priv *bat_priv,
batadv_mcast_want_ipv6_update(bat_priv, orig, mcast_flags);
batadv_mcast_want_rtr4_update(bat_priv, orig, mcast_flags);
batadv_mcast_want_rtr6_update(bat_priv, orig, mcast_flags);
+ batadv_mcast_have_mc_ptype_update(bat_priv, orig, mcast_flags);
orig->mcast_flags = mcast_flags;
spin_unlock_bh(&orig->mcast_handler_lock);
diff --git a/net/batman-adv/multicast.h b/net/batman-adv/multicast.h
index a5c0f384bb9a..d97ee51d26f2 100644
--- a/net/batman-adv/multicast.h
+++ b/net/batman-adv/multicast.h
@@ -11,6 +11,7 @@
#include <linux/netlink.h>
#include <linux/skbuff.h>
+#include <linux/types.h>
/**
* enum batadv_forw_mode - the way a packet should be forwarded as
@@ -28,6 +29,12 @@ enum batadv_forw_mode {
*/
BATADV_FORW_UCASTS,
+ /**
+ * @BATADV_FORW_MCAST: forward the packet to some nodes via a
+ * batman-adv multicast packet
+ */
+ BATADV_FORW_MCAST,
+
/** @BATADV_FORW_NONE: don't forward, drop it */
BATADV_FORW_NONE,
};
@@ -36,7 +43,7 @@ enum batadv_forw_mode {
enum batadv_forw_mode
batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
- int *is_routable);
+ unsigned short vid, int *is_routable);
int batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb,
unsigned short vid, int is_routable);
@@ -57,11 +64,18 @@ void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node);
int batadv_mcast_forw_tracker_tvlv_handler(struct batadv_priv *bat_priv,
struct sk_buff *skb);
+unsigned int batadv_mcast_forw_packet_hdrlen(unsigned int num_dests);
+
+bool batadv_mcast_forw_push(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ unsigned short vid, int is_routable, int count);
+
+int batadv_mcast_forw_mcsend(struct batadv_priv *bat_priv, struct sk_buff *skb);
+
#else
static inline enum batadv_forw_mode
batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
- int *is_routable)
+ unsigned short vid, int *is_routable)
{
return BATADV_FORW_BCAST;
}
@@ -99,6 +113,13 @@ static inline void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node)
{
}
+static inline int batadv_mcast_forw_mcsend(struct batadv_priv *bat_priv,
+ struct sk_buff *skb)
+{
+ kfree_skb(skb);
+ return NET_XMIT_DROP;
+}
+
#endif /* CONFIG_BATMAN_ADV_MCAST */
#endif /* _NET_BATMAN_ADV_MULTICAST_H_ */
diff --git a/net/batman-adv/multicast_forw.c b/net/batman-adv/multicast_forw.c
index d17341dfb832..a2c5c587b8fb 100644
--- a/net/batman-adv/multicast_forw.c
+++ b/net/batman-adv/multicast_forw.c
@@ -7,19 +7,30 @@
#include "multicast.h"
#include "main.h"
+#include <linux/bug.h>
+#include <linux/build_bug.h>
#include <linux/byteorder/generic.h>
+#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/ipv6.h>
+#include <linux/limits.h>
#include <linux/netdevice.h>
+#include <linux/rculist.h>
+#include <linux/rcupdate.h>
#include <linux/skbuff.h>
#include <linux/stddef.h>
+#include <linux/string.h>
#include <linux/types.h>
#include <uapi/linux/batadv_packet.h>
+#include "bridge_loop_avoidance.h"
#include "originator.h"
#include "send.h"
+#include "translation-table.h"
#define batadv_mcast_forw_tracker_for_each_dest(dest, num_dests) \
for (; num_dests; num_dests--, (dest) += ETH_ALEN)
@@ -27,6 +38,600 @@
#define batadv_mcast_forw_tracker_for_each_dest2(dest1, dest2, num_dests) \
for (; num_dests; num_dests--, (dest1) += ETH_ALEN, (dest2) += ETH_ALEN)
+/**
+ * batadv_mcast_forw_skb_push() - skb_push and memorize amount of pushed bytes
+ * @skb: the skb to push onto
+ * @size: the amount of bytes to push
+ * @len: stores the total amount of bytes pushed
+ *
+ * Performs an skb_push() onto the given skb and adds the amount of pushed bytes
+ * to the given len pointer.
+ *
+ * Return: the return value of the skb_push() call.
+ */
+static void *batadv_mcast_forw_skb_push(struct sk_buff *skb, size_t size,
+ unsigned short *len)
+{
+ *len += size;
+ return skb_push(skb, size);
+}
+
+/**
+ * batadv_mcast_forw_push_padding() - push 2 padding bytes to skb's front
+ * @skb: the skb to push onto
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Pushes two padding bytes to the front of the given skb.
+ *
+ * Return: On success a pointer to the first byte of the two pushed padding
+ * bytes within the skb. NULL otherwise.
+ */
+static char *
+batadv_mcast_forw_push_padding(struct sk_buff *skb, unsigned short *tvlv_len)
+{
+ const int pad_len = 2;
+ char *padding;
+
+ if (skb_headroom(skb) < pad_len)
+ return NULL;
+
+ padding = batadv_mcast_forw_skb_push(skb, pad_len, tvlv_len);
+ memset(padding, 0, pad_len);
+
+ return padding;
+}
+
+/**
+ * batadv_mcast_forw_push_est_padding() - push padding bytes if necessary
+ * @skb: the skb to potentially push the padding onto
+ * @count: the (estimated) number of originators the multicast packet needs to
+ * be sent to
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * If the number of destination entries is even then this adds two
+ * padding bytes to the end of the tracker TVLV.
+ *
+ * Return: true on success or if no padding is needed, false otherwise.
+ */
+static bool
+batadv_mcast_forw_push_est_padding(struct sk_buff *skb, int count,
+ unsigned short *tvlv_len)
+{
+ if (!(count % 2) && !batadv_mcast_forw_push_padding(skb, tvlv_len))
+ return false;
+
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_orig_entry() - get orig_node from an hlist node
+ * @node: the hlist node to get the orig_node from
+ * @entry_offset: the offset of the hlist node within the orig_node struct
+ *
+ * Return: The orig_node containing the hlist node on success, NULL on error.
+ */
+static struct batadv_orig_node *
+batadv_mcast_forw_orig_entry(struct hlist_node *node,
+ size_t entry_offset)
+{
+ /* sanity check */
+ switch (entry_offset) {
+ case offsetof(struct batadv_orig_node, mcast_want_all_ipv4_node):
+ case offsetof(struct batadv_orig_node, mcast_want_all_ipv6_node):
+ case offsetof(struct batadv_orig_node, mcast_want_all_rtr4_node):
+ case offsetof(struct batadv_orig_node, mcast_want_all_rtr6_node):
+ break;
+ default:
+ WARN_ON(1);
+ return NULL;
+ }
+
+ return (struct batadv_orig_node *)((void *)node - entry_offset);
+}
+
+/**
+ * batadv_mcast_forw_push_dest() - push an originator MAC address onto an skb
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination address onto
+ * @vid: the vlan identifier
+ * @orig_node: the originator node to get the MAC address from
+ * @num_dests: a pointer to store the number of pushed addresses in
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * If the orig_node is a BLA backbone gateway, if there is not enough skb
+ * headroom available or if num_dests is already at its maximum (65535) then
+ * neither the skb nor num_dests is changed. Otherwise the originator's MAC
+ * address is pushed onto the given skb and num_dests incremented by one.
+ *
+ * Return: true if the orig_node is a backbone gateway or if an orig address
+ * was pushed successfully, false otherwise.
+ */
+static bool batadv_mcast_forw_push_dest(struct batadv_priv *bat_priv,
+ struct sk_buff *skb, unsigned short vid,
+ struct batadv_orig_node *orig_node,
+ unsigned short *num_dests,
+ unsigned short *tvlv_len)
+{
+ BUILD_BUG_ON(sizeof_field(struct batadv_tvlv_mcast_tracker, num_dests)
+ != sizeof(__be16));
+
+ /* Avoid sending to other BLA gateways - they already got the frame from
+ * the LAN side we share with them.
+ * TODO: Refactor to take BLA into account earlier in mode check.
+ */
+ if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig, vid))
+ return true;
+
+ if (skb_headroom(skb) < ETH_ALEN || *num_dests == U16_MAX)
+ return false;
+
+ batadv_mcast_forw_skb_push(skb, ETH_ALEN, tvlv_len);
+ ether_addr_copy(skb->data, orig_node->orig);
+ (*num_dests)++;
+
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_push_dests_list() - push originators from list onto an skb
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination addresses onto
+ * @vid: the vlan identifier
+ * @head: the list to gather originators from
+ * @entry_offset: offset of an hlist node in an orig_node structure
+ * @num_dests: a pointer to store the number of pushed addresses in
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Push the MAC addresses of all originators in the given list onto the given
+ * skb.
+ *
+ * Return: true on success, false otherwise.
+ */
+static int batadv_mcast_forw_push_dests_list(struct batadv_priv *bat_priv,
+ struct sk_buff *skb,
+ unsigned short vid,
+ struct hlist_head *head,
+ size_t entry_offset,
+ unsigned short *num_dests,
+ unsigned short *tvlv_len)
+{
+ struct hlist_node *node;
+ struct batadv_orig_node *orig_node;
+
+ rcu_read_lock();
+ __hlist_for_each_rcu(node, head) {
+ orig_node = batadv_mcast_forw_orig_entry(node, entry_offset);
+ if (!orig_node ||
+ !batadv_mcast_forw_push_dest(bat_priv, skb, vid, orig_node,
+ num_dests, tvlv_len)) {
+ rcu_read_unlock();
+ return false;
+ }
+ }
+ rcu_read_unlock();
+
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_push_tt() - push originators with interest through TT
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination addresses onto
+ * @vid: the vlan identifier
+ * @num_dests: a pointer to store the number of pushed addresses in
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Push the MAC addresses of all originators which have indicated interest in
+ * this multicast packet through the translation table onto the given skb.
+ *
+ * Return: true on success, false otherwise.
+ */
+static bool
+batadv_mcast_forw_push_tt(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ unsigned short vid, unsigned short *num_dests,
+ unsigned short *tvlv_len)
+{
+ struct batadv_tt_orig_list_entry *orig_entry;
+
+ struct batadv_tt_global_entry *tt_global;
+ const u8 *addr = eth_hdr(skb)->h_dest;
+
+ /* ok */
+ int ret = true;
+
+ tt_global = batadv_tt_global_hash_find(bat_priv, addr, vid);
+ if (!tt_global)
+ goto out;
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(orig_entry, &tt_global->orig_list, list) {
+ if (!batadv_mcast_forw_push_dest(bat_priv, skb, vid,
+ orig_entry->orig_node,
+ num_dests, tvlv_len)) {
+ ret = false;
+ break;
+ }
+ }
+ rcu_read_unlock();
+
+ batadv_tt_global_entry_put(tt_global);
+
+out:
+ return ret;
+}
+
+/**
+ * batadv_mcast_forw_push_want_all() - push originators with want-all flag
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination addresses onto
+ * @vid: the vlan identifier
+ * @num_dests: a pointer to store the number of pushed addresses in
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Push the MAC addresses of all originators which have indicated interest in
+ * this multicast packet through the want-all flag onto the given skb.
+ *
+ * Return: true on success, false otherwise.
+ */
+static bool batadv_mcast_forw_push_want_all(struct batadv_priv *bat_priv,
+ struct sk_buff *skb,
+ unsigned short vid,
+ unsigned short *num_dests,
+ unsigned short *tvlv_len)
+{
+ struct hlist_head *head = NULL;
+ size_t offset;
+ int ret;
+
+ switch (eth_hdr(skb)->h_proto) {
+ case htons(ETH_P_IP):
+ head = &bat_priv->mcast.want_all_ipv4_list;
+ offset = offsetof(struct batadv_orig_node,
+ mcast_want_all_ipv4_node);
+ break;
+ case htons(ETH_P_IPV6):
+ head = &bat_priv->mcast.want_all_ipv6_list;
+ offset = offsetof(struct batadv_orig_node,
+ mcast_want_all_ipv6_node);
+ break;
+ default:
+ return false;
+ }
+
+ ret = batadv_mcast_forw_push_dests_list(bat_priv, skb, vid, head,
+ offset, num_dests, tvlv_len);
+ if (!ret)
+ return false;
+
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_push_want_rtr() - push originators with want-router flag
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination addresses onto
+ * @vid: the vlan identifier
+ * @num_dests: a pointer to store the number of pushed addresses in
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Push the MAC addresses of all originators which have indicated interest in
+ * this multicast packet through the want-all-rtr flag onto the given skb.
+ *
+ * Return: true on success, false otherwise.
+ */
+static bool batadv_mcast_forw_push_want_rtr(struct batadv_priv *bat_priv,
+ struct sk_buff *skb,
+ unsigned short vid,
+ unsigned short *num_dests,
+ unsigned short *tvlv_len)
+{
+ struct hlist_head *head = NULL;
+ size_t offset;
+ int ret;
+
+ switch (eth_hdr(skb)->h_proto) {
+ case htons(ETH_P_IP):
+ head = &bat_priv->mcast.want_all_rtr4_list;
+ offset = offsetof(struct batadv_orig_node,
+ mcast_want_all_rtr4_node);
+ break;
+ case htons(ETH_P_IPV6):
+ head = &bat_priv->mcast.want_all_rtr6_list;
+ offset = offsetof(struct batadv_orig_node,
+ mcast_want_all_rtr6_node);
+ break;
+ default:
+ return false;
+ }
+
+ ret = batadv_mcast_forw_push_dests_list(bat_priv, skb, vid, head,
+ offset, num_dests, tvlv_len);
+ if (!ret)
+ return false;
+
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_scrape() - remove bytes within skb data
+ * @skb: the skb to remove bytes from
+ * @offset: the offset from the skb data from which to scrape
+ * @len: the amount of bytes to scrape starting from the offset
+ *
+ * Scrapes/removes len bytes from the given skb at the given offset from the
+ * skb data.
+ *
+ * Caller needs to ensure that the region from the skb data's start up
+ * to/including the to be removed bytes are linearized.
+ */
+static void batadv_mcast_forw_scrape(struct sk_buff *skb,
+ unsigned short offset,
+ unsigned short len)
+{
+ char *to, *from;
+
+ SKB_LINEAR_ASSERT(skb);
+
+ to = skb_pull(skb, len);
+ from = to - len;
+
+ memmove(to, from, offset);
+}
+
+/**
+ * batadv_mcast_forw_push_scrape_padding() - remove TVLV padding
+ * @skb: the skb to potentially adjust the TVLV's padding on
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Remove two padding bytes from the end of the multicast tracker TVLV,
+ * from before the payload data.
+ *
+ * Caller needs to ensure that the TVLV bytes are linearized.
+ */
+static void batadv_mcast_forw_push_scrape_padding(struct sk_buff *skb,
+ unsigned short *tvlv_len)
+{
+ const int pad_len = 2;
+
+ batadv_mcast_forw_scrape(skb, *tvlv_len - pad_len, pad_len);
+ *tvlv_len -= pad_len;
+}
+
+/**
+ * batadv_mcast_forw_push_insert_padding() - insert TVLV padding
+ * @skb: the skb to potentially adjust the TVLV's padding on
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Inserts two padding bytes at the end of the multicast tracker TVLV,
+ * before the payload data in the given skb.
+ *
+ * Return: true on success, false otherwise.
+ */
+static bool batadv_mcast_forw_push_insert_padding(struct sk_buff *skb,
+ unsigned short *tvlv_len)
+{
+ unsigned short offset = *tvlv_len;
+ char *to, *from = skb->data;
+
+ to = batadv_mcast_forw_push_padding(skb, tvlv_len);
+ if (!to)
+ return false;
+
+ memmove(to, from, offset);
+ memset(to + offset, 0, *tvlv_len - offset);
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_push_adjust_padding() - adjust padding if necessary
+ * @skb: the skb to potentially adjust the TVLV's padding on
+ * @count: the estimated number of originators the multicast packet needs to
+ * be sent to
+ * @num_dests_pushed: the number of originators that were actually added to the
+ * multicast packet's tracker TVLV
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Adjusts the padding in the multicast packet's tracker TVLV depending on the
+ * initially estimated amount of destinations versus the amount of destinations
+ * that were actually added to the tracker TVLV.
+ *
+ * If the initial estimate was correct or at least the oddness was the same then
+ * no padding adjustment is performed.
+ * If the initially estimated number was even, so padding was initially added,
+ * but it turned out to be odd then padding is removed.
+ * If the initially estimated number was odd, so no padding was initially added,
+ * but it turned out to be even then padding is added.
+ *
+ * Return: true if no padding adjustment is needed or the adjustment was
+ * successful, false otherwise.
+ */
+static bool
+batadv_mcast_forw_push_adjust_padding(struct sk_buff *skb, int *count,
+ unsigned short num_dests_pushed,
+ unsigned short *tvlv_len)
+{
+ int ret = true;
+
+ if (likely((num_dests_pushed % 2) == (*count % 2)))
+ goto out;
+
+ /**
+ * estimated even number of destinations, but turned out to be odd
+ * -> remove padding
+ */
+ if (!(*count % 2) && (num_dests_pushed % 2))
+ batadv_mcast_forw_push_scrape_padding(skb, tvlv_len);
+ /**
+ * estimated odd number of destinations, but turned out to be even
+ * -> add padding
+ */
+ else if ((*count % 2) && (!(num_dests_pushed % 2)))
+ ret = batadv_mcast_forw_push_insert_padding(skb, tvlv_len);
+
+out:
+ *count = num_dests_pushed;
+ return ret;
+}
+
+/**
+ * batadv_mcast_forw_push_dests() - push originator addresses onto an skb
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination addresses onto
+ * @vid: the vlan identifier
+ * @is_routable: indicates whether the destination is routable
+ * @count: the number of originators the multicast packet needs to be sent to
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Push the MAC addresses of all originators which have indicated interest in
+ * this multicast packet onto the given skb.
+ *
+ * Return: -ENOMEM if there is not enough skb headroom available. Otherwise, on
+ * success 0.
+ */
+static int
+batadv_mcast_forw_push_dests(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ unsigned short vid, int is_routable, int *count,
+ unsigned short *tvlv_len)
+{
+ unsigned short num_dests = 0;
+
+ if (!batadv_mcast_forw_push_est_padding(skb, *count, tvlv_len))
+ goto err;
+
+ if (!batadv_mcast_forw_push_tt(bat_priv, skb, vid, &num_dests,
+ tvlv_len))
+ goto err;
+
+ if (!batadv_mcast_forw_push_want_all(bat_priv, skb, vid, &num_dests,
+ tvlv_len))
+ goto err;
+
+ if (is_routable &&
+ !batadv_mcast_forw_push_want_rtr(bat_priv, skb, vid, &num_dests,
+ tvlv_len))
+ goto err;
+
+ if (!batadv_mcast_forw_push_adjust_padding(skb, count, num_dests,
+ tvlv_len))
+ goto err;
+
+ return 0;
+err:
+ return -ENOMEM;
+}
+
+/**
+ * batadv_mcast_forw_push_tracker() - push a multicast tracker TVLV header
+ * @skb: the skb to push the tracker TVLV onto
+ * @num_dests: the number of destination addresses to set in the header
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Pushes a multicast tracker TVLV header onto the given skb, including the
+ * generic TVLV header but excluding the destination MAC addresses.
+ *
+ * The provided num_dests value is taken into consideration to set the
+ * num_dests field in the tracker header and to set the appropriate TVLV length
+ * value fields.
+ *
+ * Return: -ENOMEM if there is not enough skb headroom available. Otherwise, on
+ * success 0.
+ */
+static int batadv_mcast_forw_push_tracker(struct sk_buff *skb, int num_dests,
+ unsigned short *tvlv_len)
+{
+ struct batadv_tvlv_mcast_tracker *mcast_tracker;
+ struct batadv_tvlv_hdr *tvlv_hdr;
+ unsigned int tvlv_value_len;
+
+ if (skb_headroom(skb) < sizeof(*mcast_tracker) + sizeof(*tvlv_hdr))
+ return -ENOMEM;
+
+ tvlv_value_len = sizeof(*mcast_tracker) + *tvlv_len;
+ if (tvlv_value_len + sizeof(*tvlv_hdr) > U16_MAX)
+ return -ENOMEM;
+
+ batadv_mcast_forw_skb_push(skb, sizeof(*mcast_tracker), tvlv_len);
+ mcast_tracker = (struct batadv_tvlv_mcast_tracker *)skb->data;
+ mcast_tracker->num_dests = htons(num_dests);
+
+ skb_reset_network_header(skb);
+
+ batadv_mcast_forw_skb_push(skb, sizeof(*tvlv_hdr), tvlv_len);
+ tvlv_hdr = (struct batadv_tvlv_hdr *)skb->data;
+ tvlv_hdr->type = BATADV_TVLV_MCAST_TRACKER;
+ tvlv_hdr->version = 1;
+ tvlv_hdr->len = htons(tvlv_value_len);
+
+ return 0;
+}
+
+/**
+ * batadv_mcast_forw_push_tvlvs() - push a multicast tracker TVLV onto an skb
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the tracker TVLV onto
+ * @vid: the vlan identifier
+ * @is_routable: indicates whether the destination is routable
+ * @count: the number of originators the multicast packet needs to be sent to
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Pushes a multicast tracker TVLV onto the given skb, including the collected
+ * destination MAC addresses and the generic TVLV header.
+ *
+ * Return: -ENOMEM if there is not enough skb headroom available. Otherwise, on
+ * success 0.
+ */
+static int
+batadv_mcast_forw_push_tvlvs(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ unsigned short vid, int is_routable, int count,
+ unsigned short *tvlv_len)
+{
+ int ret;
+
+ ret = batadv_mcast_forw_push_dests(bat_priv, skb, vid, is_routable,
+ &count, tvlv_len);
+ if (ret < 0)
+ return ret;
+
+ ret = batadv_mcast_forw_push_tracker(skb, count, tvlv_len);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+/**
+ * batadv_mcast_forw_push_hdr() - push a multicast packet header onto an skb
+ * @skb: the skb to push the header onto
+ * @tvlv_len: the total TVLV length value to set in the header
+ *
+ * Pushes a batman-adv multicast packet header onto the given skb and sets
+ * the provided total TVLV length value in it.
+ *
+ * Caller needs to ensure enough skb headroom is available.
+ *
+ * Return: -ENOMEM if there is not enough skb headroom available. Otherwise, on
+ * success 0.
+ */
+static int
+batadv_mcast_forw_push_hdr(struct sk_buff *skb, unsigned short tvlv_len)
+{
+ struct batadv_mcast_packet *mcast_packet;
+
+ if (skb_headroom(skb) < sizeof(*mcast_packet))
+ return -ENOMEM;
+
+ skb_push(skb, sizeof(*mcast_packet));
+
+ mcast_packet = (struct batadv_mcast_packet *)skb->data;
+ mcast_packet->version = BATADV_COMPAT_VERSION;
+ mcast_packet->ttl = BATADV_TTL;
+ mcast_packet->packet_type = BATADV_MCAST;
+ mcast_packet->reserved = 0;
+ mcast_packet->tvlv_len = htons(tvlv_len);
+
+ return 0;
+}
+
/**
* batadv_mcast_forw_scrub_dests() - scrub destinations in a tracker TVLV
* @bat_priv: the bat priv with all the soft interface information
@@ -237,3 +842,130 @@ int batadv_mcast_forw_tracker_tvlv_handler(struct batadv_priv *bat_priv,
{
return batadv_mcast_forw_packet(bat_priv, skb, false);
}
+
+/**
+ * batadv_mcast_forw_packet_hdrlen() - multicast packet header length
+ * @num_dests: number of destination nodes
+ *
+ * Calculates the total batman-adv multicast packet header length for a given
+ * number of destination nodes (excluding the outer ethernet frame).
+ *
+ * Return: The calculated total batman-adv multicast packet header length.
+ */
+unsigned int batadv_mcast_forw_packet_hdrlen(unsigned int num_dests)
+{
+ /**
+ * If the number of destination entries is even then we need to add
+ * two byte padding to the tracker TVLV.
+ */
+ int padding = (!(num_dests % 2)) ? 2 : 0;
+
+ return padding + num_dests * ETH_ALEN +
+ sizeof(struct batadv_tvlv_mcast_tracker) +
+ sizeof(struct batadv_tvlv_hdr) +
+ sizeof(struct batadv_mcast_packet);
+}
+
+/**
+ * batadv_mcast_forw_expand_head() - expand headroom for an mcast packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the multicast packet to send
+ *
+ * Tries to expand an skb's headroom so that its head to tail is 1298
+ * bytes (minimum IPv6 MTU + vlan ethernet header size) large.
+ *
+ * Return: -EINVAL if the given skb's length is too large or -ENOMEM on memory
+ * allocation failure. Otherwise, on success, zero is returned.
+ */
+static int batadv_mcast_forw_expand_head(struct batadv_priv *bat_priv,
+ struct sk_buff *skb)
+{
+ int hdr_size = VLAN_ETH_HLEN + IPV6_MIN_MTU - skb->len;
+
+ /* TODO: Could be tightened to actual number of destination nodes?
+ * But it's tricky, number of destinations might have increased since
+ * we last checked.
+ */
+ if (hdr_size < 0) {
+ /* batadv_mcast_forw_mode_check_count() should ensure we do not
+ * end up here
+ */
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ if (skb_headroom(skb) < hdr_size &&
+ pskb_expand_head(skb, hdr_size, 0, GFP_ATOMIC) < 0)
+ return -ENOMEM;
+
+ return 0;
+}
+
+/**
+ * batadv_mcast_forw_push() - encapsulate skb in a batman-adv multicast packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the multicast packet to encapsulate and send
+ * @vid: the vlan identifier
+ * @is_routable: indicates whether the destination is routable
+ * @count: the number of originators the multicast packet needs to be sent to
+ *
+ * Encapsulates the given multicast packet in a batman-adv multicast packet.
+ * A multicast tracker TVLV with destination originator addresses for any node
+ * that signaled interest in it, that is either via the translation table or the
+ * according want-all flags, is attached accordingly.
+ *
+ * Return: true on success, false otherwise.
+ */
+bool batadv_mcast_forw_push(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ unsigned short vid, int is_routable, int count)
+{
+ unsigned short tvlv_len = 0;
+ int ret;
+
+ if (batadv_mcast_forw_expand_head(bat_priv, skb) < 0)
+ goto err;
+
+ skb_reset_transport_header(skb);
+
+ ret = batadv_mcast_forw_push_tvlvs(bat_priv, skb, vid, is_routable,
+ count, &tvlv_len);
+ if (ret < 0)
+ goto err;
+
+ ret = batadv_mcast_forw_push_hdr(skb, tvlv_len);
+ if (ret < 0)
+ goto err;
+
+ return true;
+
+err:
+ if (tvlv_len)
+ skb_pull(skb, tvlv_len);
+
+ return false;
+}
+
+/**
+ * batadv_mcast_forw_mcsend() - send a self prepared batman-adv multicast packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the multicast packet to encapsulate and send
+ *
+ * Transmits a batman-adv multicast packet that was locally prepared and
+ * consumes/frees it.
+ *
+ * Return: NET_XMIT_DROP on memory allocation failure. NET_XMIT_SUCCESS
+ * otherwise.
+ */
+int batadv_mcast_forw_mcsend(struct batadv_priv *bat_priv,
+ struct sk_buff *skb)
+{
+ int ret = batadv_mcast_forw_packet(bat_priv, skb, true);
+
+ if (ret < 0) {
+ kfree_skb(skb);
+ return NET_XMIT_DROP;
+ }
+
+ consume_skb(skb);
+ return NET_XMIT_SUCCESS;
+}
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 1b0e2c59aef2..89c51b3cf430 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -301,12 +301,13 @@ static netdev_tx_t batadv_interface_tx(struct sk_buff *skb,
send:
if (do_bcast && !is_broadcast_ether_addr(ethhdr->h_dest)) {
- forw_mode = batadv_mcast_forw_mode(bat_priv, skb,
+ forw_mode = batadv_mcast_forw_mode(bat_priv, skb, vid,
&mcast_is_routable);
switch (forw_mode) {
case BATADV_FORW_BCAST:
break;
case BATADV_FORW_UCASTS:
+ case BATADV_FORW_MCAST:
do_bcast = false;
break;
case BATADV_FORW_NONE:
@@ -365,6 +366,8 @@ send:
} else if (forw_mode == BATADV_FORW_UCASTS) {
ret = batadv_mcast_forw_send(bat_priv, skb, vid,
mcast_is_routable);
+ } else if (forw_mode == BATADV_FORW_MCAST) {
+ ret = batadv_mcast_forw_mcsend(bat_priv, skb);
} else {
if (batadv_dat_snoop_outgoing_arp_request(bat_priv,
skb))
@@ -762,6 +765,7 @@ static int batadv_softif_init_late(struct net_device *dev)
atomic_set(&bat_priv->mcast.num_want_all_unsnoopables, 0);
atomic_set(&bat_priv->mcast.num_want_all_ipv4, 0);
atomic_set(&bat_priv->mcast.num_want_all_ipv6, 0);
+ atomic_set(&bat_priv->mcast.num_no_mc_ptype_capa, 0);
#endif
atomic_set(&bat_priv->gw.mode, BATADV_GW_MODE_OFF);
atomic_set(&bat_priv->gw.bandwidth_down, 100);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 850b184e5b04..00840d5784fe 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -1342,6 +1342,12 @@ struct batadv_priv_mcast {
/** @num_want_all_rtr6: counter for items in want_all_rtr6_list */
atomic_t num_want_all_rtr6;
+ /**
+ * @num_no_mc_ptype_capa: counter for number of nodes without the
+ * BATADV_MCAST_HAVE_MC_PTYPE_CAPA flag
+ */
+ atomic_t num_no_mc_ptype_capa;
+
/**
* @want_lists_lock: lock for protecting modifications to mcasts
* want_all_{unsnoopables,ipv4,ipv6}_list (traversals are rcu-locked)
--
linux integration
1
0
[linux-merge]linux integration; branch, batadv/net-next, updated. v6.6-rc1-4-g0ecfbd96cb67
by postmasterï¼ open-mesh.org 24 Sep '23
by postmasterï¼ open-mesh.org 24 Sep '23
24 Sep '23
The following commit has been merged in the batadv/net-next branch:
commit 0ecfbd96cb67e993a43051363f7b209159cd5fd9
Author: Linus Lüssing <linus.luessing(a)c0d3.blue>
Date: Thu Sep 7 03:09:10 2023 +0200
batman-adv: mcast: shrink tracker packet after scrubbing
Remove all zero MAC address entries (00:00:00:00:00:00) from a multicast
packet's tracker TVLV before transmitting it and update all headers
accordingly. This way, instead of keeping the multicast packet at a
constant size throughout its journey through the mesh, it will become
more lightweight, smaller with every interested receiver on the way and
on each splitting intersection. Which can save some valuable bandwidth.
Signed-off-by: Linus Lüssing <linus.luessing(a)c0d3.blue>
Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de>
diff --git a/net/batman-adv/multicast_forw.c b/net/batman-adv/multicast_forw.c
index a2c5c587b8fb..fafd6ba8c056 100644
--- a/net/batman-adv/multicast_forw.c
+++ b/net/batman-adv/multicast_forw.c
@@ -697,6 +697,212 @@ batadv_mcast_forw_scrub_dests(struct batadv_priv *bat_priv,
}
}
+/**
+ * batadv_mcast_forw_shrink_fill() - swap slot with next non-zero destination
+ * @slot: the to be filled zero-MAC destination entry in a tracker TVLV
+ * @num_dests_slot: remaining entries in tracker TVLV from/including slot
+ *
+ * Searches for the next non-zero-MAC destination entry in a tracker TVLV after
+ * the given slot pointer. And if found, swaps it with the zero-MAC destination
+ * entry which the slot points to.
+ *
+ * Return: true if slot was swapped/filled successfully, false otherwise.
+ */
+static bool batadv_mcast_forw_shrink_fill(u8 *slot, u16 num_dests_slot)
+{
+ u16 num_dests_filler;
+ u8 *filler;
+
+ /* sanity check, should not happen */
+ if (!num_dests_slot)
+ return false;
+
+ num_dests_filler = num_dests_slot - 1;
+ filler = slot + ETH_ALEN;
+
+ /* find a candidate to fill the empty slot */
+ batadv_mcast_forw_tracker_for_each_dest(filler, num_dests_filler) {
+ if (is_zero_ether_addr(filler))
+ continue;
+
+ ether_addr_copy(slot, filler);
+ eth_zero_addr(filler);
+ return true;
+ }
+
+ return false;
+}
+
+/**
+ * batadv_mcast_forw_shrink_pack_dests() - pack destinations of a tracker TVLV
+ * @skb: the batman-adv multicast packet to compact destinations in
+ *
+ * Compacts the originator destination MAC addresses in the multicast tracker
+ * TVLV of the given multicast packet. This is done by moving all non-zero
+ * MAC addresses in direction of the skb head and all zero MAC addresses in skb
+ * tail direction, within the multicast tracker TVLV.
+ *
+ * Return: The number of consecutive zero MAC address destinations which are
+ * now at the end of the multicast tracker TVLV.
+ */
+static int batadv_mcast_forw_shrink_pack_dests(struct sk_buff *skb)
+{
+ struct batadv_tvlv_mcast_tracker *mcast_tracker;
+ unsigned char *skb_net_hdr;
+ u16 num_dests_slot;
+ u8 *slot;
+
+ skb_net_hdr = skb_network_header(skb);
+ mcast_tracker = (struct batadv_tvlv_mcast_tracker *)skb_net_hdr;
+ num_dests_slot = ntohs(mcast_tracker->num_dests);
+
+ slot = (u8 *)mcast_tracker + sizeof(*mcast_tracker);
+
+ batadv_mcast_forw_tracker_for_each_dest(slot, num_dests_slot) {
+ /* find an empty slot */
+ if (!is_zero_ether_addr(slot))
+ continue;
+
+ if (!batadv_mcast_forw_shrink_fill(slot, num_dests_slot))
+ /* could not find a filler, so we successfully packed
+ * and can stop - and must not reduce num_dests_slot!
+ */
+ break;
+ }
+
+ /* num_dests_slot is now the amount of reduced, zeroed
+ * destinations at the end of the tracker TVLV
+ */
+ return num_dests_slot;
+}
+
+/**
+ * batadv_mcast_forw_shrink_align_offset() - get new alignment offset
+ * @num_dests_old: the old, to be updated amount of destination nodes
+ * @num_dests_reduce: the number of destinations that were removed
+ *
+ * Calculates the amount of potential extra alignment offset that is needed to
+ * adjust the TVLV padding after the change in destination nodes.
+ *
+ * Return:
+ * 0: If no change to padding is needed.
+ * 2: If padding needs to be removed.
+ * -2: If padding needs to be added.
+ */
+static short
+batadv_mcast_forw_shrink_align_offset(unsigned int num_dests_old,
+ unsigned int num_dests_reduce)
+{
+ /* even amount of removed destinations -> no alignment change */
+ if (!(num_dests_reduce % 2))
+ return 0;
+
+ /* even to odd amount of destinations -> remove padding */
+ if (!(num_dests_old % 2))
+ return 2;
+
+ /* odd to even amount of destinations -> add padding */
+ return -2;
+}
+
+/**
+ * batadv_mcast_forw_shrink_update_headers() - update shrunk mc packet headers
+ * @skb: the batman-adv multicast packet to update headers of
+ * @num_dests_reduce: the number of destinations that were removed
+ *
+ * This updates any fields of a batman-adv multicast packet that are affected
+ * by the reduced number of destinations in the multicast tracket TVLV. In
+ * particular this updates:
+ *
+ * The num_dest field of the multicast tracker TVLV.
+ * The TVLV length field of the according generic TVLV header.
+ * The batman-adv multicast packet's total TVLV length field.
+ *
+ * Return: The offset in skb's tail direction at which the new batman-adv
+ * multicast packet header needs to start.
+ */
+static unsigned int
+batadv_mcast_forw_shrink_update_headers(struct sk_buff *skb,
+ unsigned int num_dests_reduce)
+{
+ struct batadv_tvlv_mcast_tracker *mcast_tracker;
+ struct batadv_mcast_packet *mcast_packet;
+ struct batadv_tvlv_hdr *tvlv_hdr;
+ unsigned char *skb_net_hdr;
+ unsigned int offset;
+ short align_offset;
+ u16 num_dests;
+
+ skb_net_hdr = skb_network_header(skb);
+ mcast_tracker = (struct batadv_tvlv_mcast_tracker *)skb_net_hdr;
+ num_dests = ntohs(mcast_tracker->num_dests);
+
+ align_offset = batadv_mcast_forw_shrink_align_offset(num_dests,
+ num_dests_reduce);
+ offset = ETH_ALEN * num_dests_reduce + align_offset;
+ num_dests -= num_dests_reduce;
+
+ /* update tracker header */
+ mcast_tracker->num_dests = htons(num_dests);
+
+ /* update tracker's tvlv header's length field */
+ tvlv_hdr = (struct batadv_tvlv_hdr *)(skb_network_header(skb) -
+ sizeof(*tvlv_hdr));
+ tvlv_hdr->len = htons(ntohs(tvlv_hdr->len) - offset);
+
+ /* update multicast packet header's tvlv length field */
+ mcast_packet = (struct batadv_mcast_packet *)skb->data;
+ mcast_packet->tvlv_len = htons(ntohs(mcast_packet->tvlv_len) - offset);
+
+ return offset;
+}
+
+/**
+ * batadv_mcast_forw_shrink_move_headers() - move multicast headers by offset
+ * @skb: the batman-adv multicast packet to move headers for
+ * @offset: a non-negative offset to move headers by, towards the skb tail
+ *
+ * Moves the batman-adv multicast packet header, its multicast tracker TVLV and
+ * any TVLVs in between by the given offset in direction towards the tail.
+ */
+static void
+batadv_mcast_forw_shrink_move_headers(struct sk_buff *skb, unsigned int offset)
+{
+ struct batadv_tvlv_mcast_tracker *mcast_tracker;
+ unsigned char *skb_net_hdr;
+ unsigned int len;
+ u16 num_dests;
+
+ skb_net_hdr = skb_network_header(skb);
+ mcast_tracker = (struct batadv_tvlv_mcast_tracker *)skb_net_hdr;
+ num_dests = ntohs(mcast_tracker->num_dests);
+ len = skb_network_offset(skb) + sizeof(*mcast_tracker);
+ len += num_dests * ETH_ALEN;
+
+ batadv_mcast_forw_scrape(skb, len, offset);
+}
+
+/**
+ * batadv_mcast_forw_shrink_tracker() - remove zero addresses in a tracker tvlv
+ * @skb: the batman-adv multicast packet to (potentially) shrink
+ *
+ * Removes all destinations with a zero MAC addresses (00:00:00:00:00:00) from
+ * the given batman-adv multicast packet's tracker TVLV and updates headers
+ * accordingly to maintain a valid batman-adv multicast packet.
+ */
+static void batadv_mcast_forw_shrink_tracker(struct sk_buff *skb)
+{
+ unsigned int offset;
+ u16 dests_reduced;
+
+ dests_reduced = batadv_mcast_forw_shrink_pack_dests(skb);
+ if (!dests_reduced)
+ return;
+
+ offset = batadv_mcast_forw_shrink_update_headers(skb, dests_reduced);
+ batadv_mcast_forw_shrink_move_headers(skb, offset);
+}
+
/**
* batadv_mcast_forw_packet() - forward a batman-adv multicast packet
* @bat_priv: the bat priv with all the soft interface information
@@ -786,6 +992,7 @@ static int batadv_mcast_forw_packet(struct batadv_priv *bat_priv,
batadv_mcast_forw_scrub_dests(bat_priv, neigh_node, dest,
next_dest, num_dests);
+ batadv_mcast_forw_shrink_tracker(nexthop_skb);
batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_TX);
batadv_add_counter(bat_priv, BATADV_CNT_MCAST_TX_BYTES,
--
linux integration
1
0
[linux-merge]linux integration; branch, batadv/net-next, updated. v6.6-rc1-4-g0ecfbd96cb67
by postmasterï¼ open-mesh.org 24 Sep '23
by postmasterï¼ open-mesh.org 24 Sep '23
24 Sep '23
The following commit has been merged in the batadv/net-next branch:
commit 2658c9e796bfa3468f6599122c8829ff322b3e0c
Author: Linus Lüssing <linus.luessing(a)c0d3.blue>
Date: Thu Sep 7 03:09:08 2023 +0200
batman-adv: mcast: implement multicast packet reception and forwarding
Implement functionality to receive and forward a new TVLV capable
multicast packet type.
The new batman-adv multicast packet type allows to contain several
originator destination addresses within a TVLV. Routers on the way will
potentially split the batman-adv multicast packet and adjust its tracker
TVLV contents.
Routing decisions are still based on the selected BATMAN IV or BATMAN V
routing algorithm. So this new batman-adv multicast packet type retains
the same loop-free properties.
Also a new OGM multicast TVLV flag is introduced to signal to other
nodes that we are capable of handling a batman-adv multicast packet and
multicast tracker TVLV. And that all of our hard interfaces have an MTU
of at least 1280 bytes (IPv6 minimum MTU), as a simple solution for now
to avoid MTU issues while forwarding.
Signed-off-by: Linus Lüssing <linus.luessing(a)c0d3.blue>
Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de>
diff --git a/include/uapi/linux/batadv_packet.h b/include/uapi/linux/batadv_packet.h
index 9204e4494b25..6e25753015df 100644
--- a/include/uapi/linux/batadv_packet.h
+++ b/include/uapi/linux/batadv_packet.h
@@ -116,6 +116,9 @@ enum batadv_icmp_packettype {
* only need routable IPv4 multicast packets we signed up for explicitly
* @BATADV_MCAST_WANT_NO_RTR6: we have no IPv6 multicast router and therefore
* only need routable IPv6 multicast packets we signed up for explicitly
+ * @BATADV_MCAST_HAVE_MC_PTYPE_CAPA: we can parse, receive and forward
+ * batman-adv multicast packets with a multicast tracker TVLV. And all our
+ * hard interfaces have an MTU of at least 1280 bytes.
*/
enum batadv_mcast_flags {
BATADV_MCAST_WANT_ALL_UNSNOOPABLES = 1UL << 0,
@@ -123,6 +126,7 @@ enum batadv_mcast_flags {
BATADV_MCAST_WANT_ALL_IPV6 = 1UL << 2,
BATADV_MCAST_WANT_NO_RTR4 = 1UL << 3,
BATADV_MCAST_WANT_NO_RTR6 = 1UL << 4,
+ BATADV_MCAST_HAVE_MC_PTYPE_CAPA = 1UL << 5,
};
/* tt data subtypes */
@@ -174,14 +178,16 @@ enum batadv_bla_claimframe {
* @BATADV_TVLV_TT: translation table tvlv
* @BATADV_TVLV_ROAM: roaming advertisement tvlv
* @BATADV_TVLV_MCAST: multicast capability tvlv
+ * @BATADV_TVLV_MCAST_TRACKER: multicast tracker tvlv
*/
enum batadv_tvlv_type {
- BATADV_TVLV_GW = 0x01,
- BATADV_TVLV_DAT = 0x02,
- BATADV_TVLV_NC = 0x03,
- BATADV_TVLV_TT = 0x04,
- BATADV_TVLV_ROAM = 0x05,
- BATADV_TVLV_MCAST = 0x06,
+ BATADV_TVLV_GW = 0x01,
+ BATADV_TVLV_DAT = 0x02,
+ BATADV_TVLV_NC = 0x03,
+ BATADV_TVLV_TT = 0x04,
+ BATADV_TVLV_ROAM = 0x05,
+ BATADV_TVLV_MCAST = 0x06,
+ BATADV_TVLV_MCAST_TRACKER = 0x07,
};
#pragma pack(2)
@@ -487,6 +493,25 @@ struct batadv_bcast_packet {
*/
};
+/**
+ * struct batadv_mcast_packet - multicast packet for network payload
+ * @packet_type: batman-adv packet type, part of the general header
+ * @version: batman-adv protocol version, part of the general header
+ * @ttl: time to live for this packet, part of the general header
+ * @reserved: reserved byte for alignment
+ * @tvlv_len: length of the appended tvlv buffer (in bytes)
+ */
+struct batadv_mcast_packet {
+ __u8 packet_type;
+ __u8 version;
+ __u8 ttl;
+ __u8 reserved;
+ __be16 tvlv_len;
+ /* "4 bytes boundary + 2 bytes" long to make the payload after the
+ * following ethernet header again 4 bytes boundary aligned
+ */
+};
+
/**
* struct batadv_coded_packet - network coded packet
* @packet_type: batman-adv packet type, part of the general header
@@ -628,6 +653,14 @@ struct batadv_tvlv_mcast_data {
__u8 reserved[3];
};
+/**
+ * struct batadv_tvlv_mcast_tracker - payload of a multicast tracker tvlv
+ * @num_dests: number of subsequent destination originator MAC addresses
+ */
+struct batadv_tvlv_mcast_tracker {
+ __be16 num_dests;
+};
+
#pragma pack()
#endif /* _UAPI_LINUX_BATADV_PACKET_H_ */
diff --git a/net/batman-adv/Makefile b/net/batman-adv/Makefile
index 3bd0760c76a2..b51d8b071b56 100644
--- a/net/batman-adv/Makefile
+++ b/net/batman-adv/Makefile
@@ -20,6 +20,7 @@ batman-adv-y += hash.o
batman-adv-$(CONFIG_BATMAN_ADV_DEBUG) += log.o
batman-adv-y += main.o
batman-adv-$(CONFIG_BATMAN_ADV_MCAST) += multicast.o
+batman-adv-$(CONFIG_BATMAN_ADV_MCAST) += multicast_forw.o
batman-adv-y += netlink.o
batman-adv-$(CONFIG_BATMAN_ADV_NC) += network-coding.o
batman-adv-y += originator.o
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
index c120c7c6d25f..757c084ac2d1 100644
--- a/net/batman-adv/fragmentation.c
+++ b/net/batman-adv/fragmentation.c
@@ -25,7 +25,6 @@
#include "hard-interface.h"
#include "originator.h"
-#include "routing.h"
#include "send.h"
/**
@@ -351,18 +350,14 @@ bool batadv_frag_skb_fwd(struct sk_buff *skb,
struct batadv_orig_node *orig_node_src)
{
struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
- struct batadv_orig_node *orig_node_dst;
struct batadv_neigh_node *neigh_node = NULL;
struct batadv_frag_packet *packet;
u16 total_size;
bool ret = false;
packet = (struct batadv_frag_packet *)skb->data;
- orig_node_dst = batadv_orig_hash_find(bat_priv, packet->dest);
- if (!orig_node_dst)
- goto out;
- neigh_node = batadv_find_router(bat_priv, orig_node_dst, recv_if);
+ neigh_node = batadv_orig_to_router(bat_priv, packet->dest, recv_if);
if (!neigh_node)
goto out;
@@ -381,7 +376,6 @@ bool batadv_frag_skb_fwd(struct sk_buff *skb,
}
out:
- batadv_orig_node_put(orig_node_dst);
batadv_neigh_node_put(neigh_node);
return ret;
}
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index e8a449915566..50b2bf2b748c 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -532,6 +532,8 @@ static void batadv_recv_handler_init(void)
/* broadcast packet */
batadv_rx_handler[BATADV_BCAST] = batadv_recv_bcast_packet;
+ /* multicast packet */
+ batadv_rx_handler[BATADV_MCAST] = batadv_recv_mcast_packet;
/* unicast packets ... */
/* unicast with 4 addresses packet */
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index 315394f12c55..dfc2c645b13f 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -235,6 +235,37 @@ static u8 batadv_mcast_mla_rtr_flags_get(struct batadv_priv *bat_priv,
return flags;
}
+/**
+ * batadv_mcast_mla_forw_flags_get() - get multicast forwarding flags
+ * @bat_priv: the bat priv with all the soft interface information
+ *
+ * Checks if all active hard interfaces have an MTU larger or equal to 1280
+ * bytes (IPv6 minimum MTU).
+ *
+ * Return: BATADV_MCAST_HAVE_MC_PTYPE_CAPA if yes, BATADV_NO_FLAGS otherwise.
+ */
+static u8 batadv_mcast_mla_forw_flags_get(struct batadv_priv *bat_priv)
+{
+ const struct batadv_hard_iface *hard_iface;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
+ if (hard_iface->if_status != BATADV_IF_ACTIVE)
+ continue;
+
+ if (hard_iface->soft_iface != bat_priv->soft_iface)
+ continue;
+
+ if (hard_iface->net_dev->mtu < IPV6_MIN_MTU) {
+ rcu_read_unlock();
+ return BATADV_NO_FLAGS;
+ }
+ }
+ rcu_read_unlock();
+
+ return BATADV_MCAST_HAVE_MC_PTYPE_CAPA;
+}
+
/**
* batadv_mcast_mla_flags_get() - get the new multicast flags
* @bat_priv: the bat priv with all the soft interface information
@@ -256,6 +287,7 @@ batadv_mcast_mla_flags_get(struct batadv_priv *bat_priv)
mla_flags.enabled = 1;
mla_flags.tvlv_flags |= batadv_mcast_mla_rtr_flags_get(bat_priv,
bridge);
+ mla_flags.tvlv_flags |= batadv_mcast_mla_forw_flags_get(bat_priv);
if (!bridge)
return mla_flags;
@@ -806,23 +838,25 @@ static void batadv_mcast_flags_log(struct batadv_priv *bat_priv, u8 flags)
{
bool old_enabled = bat_priv->mcast.mla_flags.enabled;
u8 old_flags = bat_priv->mcast.mla_flags.tvlv_flags;
- char str_old_flags[] = "[.... . ]";
+ char str_old_flags[] = "[.... . .]";
- sprintf(str_old_flags, "[%c%c%c%s%s]",
+ sprintf(str_old_flags, "[%c%c%c%s%s%c]",
(old_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES) ? 'U' : '.',
(old_flags & BATADV_MCAST_WANT_ALL_IPV4) ? '4' : '.',
(old_flags & BATADV_MCAST_WANT_ALL_IPV6) ? '6' : '.',
!(old_flags & BATADV_MCAST_WANT_NO_RTR4) ? "R4" : ". ",
- !(old_flags & BATADV_MCAST_WANT_NO_RTR6) ? "R6" : ". ");
+ !(old_flags & BATADV_MCAST_WANT_NO_RTR6) ? "R6" : ". ",
+ !(old_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA) ? 'P' : '.');
batadv_dbg(BATADV_DBG_MCAST, bat_priv,
- "Changing multicast flags from '%s' to '[%c%c%c%s%s]'\n",
+ "Changing multicast flags from '%s' to '[%c%c%c%s%s%c]'\n",
old_enabled ? str_old_flags : "<undefined>",
(flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES) ? 'U' : '.',
(flags & BATADV_MCAST_WANT_ALL_IPV4) ? '4' : '.',
(flags & BATADV_MCAST_WANT_ALL_IPV6) ? '6' : '.',
!(flags & BATADV_MCAST_WANT_NO_RTR4) ? "R4" : ". ",
- !(flags & BATADV_MCAST_WANT_NO_RTR6) ? "R6" : ". ");
+ !(flags & BATADV_MCAST_WANT_NO_RTR6) ? "R6" : ". ",
+ !(flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA) ? 'P' : '.');
}
/**
@@ -1820,6 +1854,10 @@ void batadv_mcast_init(struct batadv_priv *bat_priv)
batadv_tvlv_handler_register(bat_priv, batadv_mcast_tvlv_ogm_handler,
NULL, NULL, BATADV_TVLV_MCAST, 2,
BATADV_TVLV_HANDLER_OGM_CIFNOTFND);
+ batadv_tvlv_handler_register(bat_priv, NULL, NULL,
+ batadv_mcast_forw_tracker_tvlv_handler,
+ BATADV_TVLV_MCAST_TRACKER, 1,
+ BATADV_TVLV_HANDLER_OGM_CIFNOTFND);
INIT_DELAYED_WORK(&bat_priv->mcast.work, batadv_mcast_mla_update);
batadv_mcast_start_timer(bat_priv);
diff --git a/net/batman-adv/multicast.h b/net/batman-adv/multicast.h
index a9770d8d6d36..a5c0f384bb9a 100644
--- a/net/batman-adv/multicast.h
+++ b/net/batman-adv/multicast.h
@@ -52,6 +52,11 @@ void batadv_mcast_free(struct batadv_priv *bat_priv);
void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node);
+/* multicast_forw.c */
+
+int batadv_mcast_forw_tracker_tvlv_handler(struct batadv_priv *bat_priv,
+ struct sk_buff *skb);
+
#else
static inline enum batadv_forw_mode
diff --git a/net/batman-adv/multicast_forw.c b/net/batman-adv/multicast_forw.c
new file mode 100644
index 000000000000..d17341dfb832
--- /dev/null
+++ b/net/batman-adv/multicast_forw.c
@@ -0,0 +1,239 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) B.A.T.M.A.N. contributors:
+ *
+ * Linus Lüssing
+ */
+
+#include "multicast.h"
+#include "main.h"
+
+#include <linux/byteorder/generic.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/gfp.h>
+#include <linux/if_ether.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <uapi/linux/batadv_packet.h>
+
+#include "originator.h"
+#include "send.h"
+
+#define batadv_mcast_forw_tracker_for_each_dest(dest, num_dests) \
+ for (; num_dests; num_dests--, (dest) += ETH_ALEN)
+
+#define batadv_mcast_forw_tracker_for_each_dest2(dest1, dest2, num_dests) \
+ for (; num_dests; num_dests--, (dest1) += ETH_ALEN, (dest2) += ETH_ALEN)
+
+/**
+ * batadv_mcast_forw_scrub_dests() - scrub destinations in a tracker TVLV
+ * @bat_priv: the bat priv with all the soft interface information
+ * @comp_neigh: next hop neighbor to scrub+collect destinations for
+ * @dest: start MAC entry in original skb's tracker TVLV
+ * @next_dest: start MAC entry in to be sent skb's tracker TVLV
+ * @num_dests: number of remaining destination MAC entries to iterate over
+ *
+ * This sorts destination entries into either the original batman-adv
+ * multicast packet or the skb (copy) that is going to be sent to comp_neigh
+ * next.
+ *
+ * In preparation for the next, to be (unicast) transmitted batman-adv multicast
+ * packet skb to be sent to the given neighbor node, tries to collect all
+ * originator MAC addresses that have the given neighbor node as their next hop
+ * in the to be transmitted skb (copy), which next_dest points into. That is we
+ * zero all destination entries in next_dest which do not have comp_neigh as
+ * their next hop. And zero all destination entries in the original skb that
+ * would have comp_neigh as their next hop (to avoid redundant transmissions and
+ * duplicated payload later).
+ */
+static void
+batadv_mcast_forw_scrub_dests(struct batadv_priv *bat_priv,
+ struct batadv_neigh_node *comp_neigh, u8 *dest,
+ u8 *next_dest, u16 num_dests)
+{
+ struct batadv_neigh_node *next_neigh;
+
+ /* skip first entry, this is what we are comparing with */
+ eth_zero_addr(dest);
+ dest += ETH_ALEN;
+ next_dest += ETH_ALEN;
+ num_dests--;
+
+ batadv_mcast_forw_tracker_for_each_dest2(dest, next_dest, num_dests) {
+ if (is_zero_ether_addr(next_dest))
+ continue;
+
+ /* sanity check, we expect unicast destinations */
+ if (is_multicast_ether_addr(next_dest)) {
+ eth_zero_addr(dest);
+ eth_zero_addr(next_dest);
+ continue;
+ }
+
+ next_neigh = batadv_orig_to_router(bat_priv, next_dest, NULL);
+ if (!next_neigh) {
+ eth_zero_addr(next_dest);
+ continue;
+ }
+
+ if (!batadv_compare_eth(next_neigh->addr, comp_neigh->addr)) {
+ eth_zero_addr(next_dest);
+ batadv_neigh_node_put(next_neigh);
+ continue;
+ }
+
+ /* found an entry for our next packet to transmit, so remove it
+ * from the original packet
+ */
+ eth_zero_addr(dest);
+ batadv_neigh_node_put(next_neigh);
+ }
+}
+
+/**
+ * batadv_mcast_forw_packet() - forward a batman-adv multicast packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the received or locally generated batman-adv multicast packet
+ * @local_xmit: indicates that the packet was locally generated and not received
+ *
+ * Parses the tracker TVLV of a batman-adv multicast packet and forwards the
+ * packet as indicated in this TVLV.
+ *
+ * Caller needs to set the skb network header to the start of the multicast
+ * tracker TVLV (excluding the generic TVLV header) and the skb transport header
+ * to the next byte after this multicast tracker TVLV.
+ *
+ * Caller needs to free the skb.
+ *
+ * Return: NET_RX_SUCCESS or NET_RX_DROP on success or a negative error
+ * code on failure. NET_RX_SUCCESS if the received packet is supposed to be
+ * decapsulated and forwarded to the own soft interface, NET_RX_DROP otherwise.
+ */
+static int batadv_mcast_forw_packet(struct batadv_priv *bat_priv,
+ struct sk_buff *skb, bool local_xmit)
+{
+ struct batadv_tvlv_mcast_tracker *mcast_tracker;
+ struct batadv_neigh_node *neigh_node;
+ unsigned long offset, num_dests_off;
+ struct sk_buff *nexthop_skb;
+ unsigned char *skb_net_hdr;
+ bool local_recv = false;
+ unsigned int tvlv_len;
+ bool xmitted = false;
+ u8 *dest, *next_dest;
+ u16 num_dests;
+ int ret;
+
+ /* (at least) TVLV part needs to be linearized */
+ SKB_LINEAR_ASSERT(skb);
+
+ /* check if num_dests is within skb length */
+ num_dests_off = offsetof(struct batadv_tvlv_mcast_tracker, num_dests);
+ if (num_dests_off > skb_network_header_len(skb))
+ return -EINVAL;
+
+ skb_net_hdr = skb_network_header(skb);
+ mcast_tracker = (struct batadv_tvlv_mcast_tracker *)skb_net_hdr;
+ num_dests = ntohs(mcast_tracker->num_dests);
+
+ dest = (u8 *)mcast_tracker + sizeof(*mcast_tracker);
+
+ /* check if full tracker tvlv is within skb length */
+ tvlv_len = sizeof(*mcast_tracker) + ETH_ALEN * num_dests;
+ if (tvlv_len > skb_network_header_len(skb))
+ return -EINVAL;
+
+ /* invalidate checksum: */
+ skb->ip_summed = CHECKSUM_NONE;
+
+ batadv_mcast_forw_tracker_for_each_dest(dest, num_dests) {
+ if (is_zero_ether_addr(dest))
+ continue;
+
+ /* only unicast originator addresses supported */
+ if (is_multicast_ether_addr(dest)) {
+ eth_zero_addr(dest);
+ continue;
+ }
+
+ if (batadv_is_my_mac(bat_priv, dest)) {
+ eth_zero_addr(dest);
+ local_recv = true;
+ continue;
+ }
+
+ neigh_node = batadv_orig_to_router(bat_priv, dest, NULL);
+ if (!neigh_node) {
+ eth_zero_addr(dest);
+ continue;
+ }
+
+ nexthop_skb = skb_copy(skb, GFP_ATOMIC);
+ if (!nexthop_skb) {
+ batadv_neigh_node_put(neigh_node);
+ return -ENOMEM;
+ }
+
+ offset = dest - skb->data;
+ next_dest = nexthop_skb->data + offset;
+
+ batadv_mcast_forw_scrub_dests(bat_priv, neigh_node, dest,
+ next_dest, num_dests);
+
+ batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_TX);
+ batadv_add_counter(bat_priv, BATADV_CNT_MCAST_TX_BYTES,
+ nexthop_skb->len + ETH_HLEN);
+ xmitted = true;
+ ret = batadv_send_unicast_skb(nexthop_skb, neigh_node);
+
+ batadv_neigh_node_put(neigh_node);
+
+ if (ret < 0)
+ return ret;
+ }
+
+ if (xmitted) {
+ if (local_xmit) {
+ batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_TX_LOCAL);
+ batadv_add_counter(bat_priv,
+ BATADV_CNT_MCAST_TX_LOCAL_BYTES,
+ skb->len -
+ skb_transport_offset(skb));
+ } else {
+ batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_FWD);
+ batadv_add_counter(bat_priv, BATADV_CNT_MCAST_FWD_BYTES,
+ skb->len + ETH_HLEN);
+ }
+ }
+
+ if (local_recv)
+ return NET_RX_SUCCESS;
+ else
+ return NET_RX_DROP;
+}
+
+/**
+ * batadv_mcast_forw_tracker_tvlv_handler() - handle an mcast tracker tvlv
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the received batman-adv multicast packet
+ *
+ * Parses the tracker TVLV of an incoming batman-adv multicast packet and
+ * forwards the packet as indicated in this TVLV.
+ *
+ * Caller needs to set the skb network header to the start of the multicast
+ * tracker TVLV (excluding the generic TVLV header) and the skb transport header
+ * to the next byte after this multicast tracker TVLV.
+ *
+ * Caller needs to free the skb.
+ *
+ * Return: NET_RX_SUCCESS or NET_RX_DROP on success or a negative error
+ * code on failure. NET_RX_SUCCESS if the received packet is supposed to be
+ * decapsulated and forwarded to the own soft interface, NET_RX_DROP otherwise.
+ */
+int batadv_mcast_forw_tracker_tvlv_handler(struct batadv_priv *bat_priv,
+ struct sk_buff *skb)
+{
+ return batadv_mcast_forw_packet(bat_priv, skb, false);
+}
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 34903df4fe93..71c143d4b6d0 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -311,6 +311,33 @@ batadv_orig_router_get(struct batadv_orig_node *orig_node,
return router;
}
+/**
+ * batadv_orig_to_router() - get next hop neighbor to an orig address
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_addr: the originator MAC address to search the best next hop router for
+ * @if_outgoing: the interface where the payload packet has been received or
+ * the OGM should be sent to
+ *
+ * Return: A neighbor node which is the best router towards the given originator
+ * address.
+ */
+struct batadv_neigh_node *
+batadv_orig_to_router(struct batadv_priv *bat_priv, u8 *orig_addr,
+ struct batadv_hard_iface *if_outgoing)
+{
+ struct batadv_neigh_node *neigh_node;
+ struct batadv_orig_node *orig_node;
+
+ orig_node = batadv_orig_hash_find(bat_priv, orig_addr);
+ if (!orig_node)
+ return NULL;
+
+ neigh_node = batadv_find_router(bat_priv, orig_node, if_outgoing);
+ batadv_orig_node_put(orig_node);
+
+ return neigh_node;
+}
+
/**
* batadv_orig_ifinfo_get() - find the ifinfo from an orig_node
* @orig_node: the orig node to be queried
@@ -942,6 +969,7 @@ struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv,
#ifdef CONFIG_BATMAN_ADV_MCAST
orig_node->mcast_flags = BATADV_MCAST_WANT_NO_RTR4;
orig_node->mcast_flags |= BATADV_MCAST_WANT_NO_RTR6;
+ orig_node->mcast_flags |= BATADV_MCAST_HAVE_MC_PTYPE_CAPA;
INIT_HLIST_NODE(&orig_node->mcast_want_all_unsnoopables_node);
INIT_HLIST_NODE(&orig_node->mcast_want_all_ipv4_node);
INIT_HLIST_NODE(&orig_node->mcast_want_all_ipv6_node);
diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h
index ea3d69e4e670..db0c55128170 100644
--- a/net/batman-adv/originator.h
+++ b/net/batman-adv/originator.h
@@ -36,6 +36,9 @@ void batadv_neigh_node_release(struct kref *ref);
struct batadv_neigh_node *
batadv_orig_router_get(struct batadv_orig_node *orig_node,
const struct batadv_hard_iface *if_outgoing);
+struct batadv_neigh_node *
+batadv_orig_to_router(struct batadv_priv *bat_priv, u8 *orig_addr,
+ struct batadv_hard_iface *if_outgoing);
struct batadv_neigh_ifinfo *
batadv_neigh_ifinfo_new(struct batadv_neigh_node *neigh,
struct batadv_hard_iface *if_outgoing);
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 163cd43c4821..f1061985149f 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -1270,3 +1270,73 @@ out:
batadv_orig_node_put(orig_node);
return ret;
}
+
+#ifdef CONFIG_BATMAN_ADV_MCAST
+/**
+ * batadv_recv_mcast_packet() - process received batman-adv multicast packet
+ * @skb: the received batman-adv multicast packet
+ * @recv_if: interface that the skb is received on
+ *
+ * Parses the given, received batman-adv multicast packet. Depending on the
+ * contents of its TVLV forwards it and/or decapsulates it to hand it to the
+ * soft interface.
+ *
+ * Return: NET_RX_DROP if the skb is not consumed, NET_RX_SUCCESS otherwise.
+ */
+int batadv_recv_mcast_packet(struct sk_buff *skb,
+ struct batadv_hard_iface *recv_if)
+{
+ struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
+ struct batadv_mcast_packet *mcast_packet;
+ int hdr_size = sizeof(*mcast_packet);
+ unsigned char *tvlv_buff;
+ int ret = NET_RX_DROP;
+ u16 tvlv_buff_len;
+
+ if (batadv_check_unicast_packet(bat_priv, skb, hdr_size) < 0)
+ goto free_skb;
+
+ /* create a copy of the skb, if needed, to modify it. */
+ if (skb_cow(skb, ETH_HLEN) < 0)
+ goto free_skb;
+
+ /* packet needs to be linearized to access the tvlv content */
+ if (skb_linearize(skb) < 0)
+ goto free_skb;
+
+ mcast_packet = (struct batadv_mcast_packet *)skb->data;
+ if (mcast_packet->ttl-- < 2)
+ goto free_skb;
+
+ tvlv_buff = (unsigned char *)(skb->data + hdr_size);
+ tvlv_buff_len = ntohs(mcast_packet->tvlv_len);
+
+ if (tvlv_buff_len > skb->len - hdr_size)
+ goto free_skb;
+
+ ret = batadv_tvlv_containers_process(bat_priv, BATADV_MCAST, NULL, skb,
+ tvlv_buff, tvlv_buff_len);
+ if (ret >= 0) {
+ batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_RX);
+ batadv_add_counter(bat_priv, BATADV_CNT_MCAST_RX_BYTES,
+ skb->len + ETH_HLEN);
+ }
+
+ hdr_size += tvlv_buff_len;
+
+ if (ret == NET_RX_SUCCESS && (skb->len - hdr_size >= ETH_HLEN)) {
+ batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_RX_LOCAL);
+ batadv_add_counter(bat_priv, BATADV_CNT_MCAST_RX_LOCAL_BYTES,
+ skb->len - hdr_size);
+
+ batadv_interface_rx(bat_priv->soft_iface, skb, hdr_size, NULL);
+ /* skb was consumed */
+ skb = NULL;
+ }
+
+free_skb:
+ kfree_skb(skb);
+
+ return ret;
+}
+#endif /* CONFIG_BATMAN_ADV_MCAST */
diff --git a/net/batman-adv/routing.h b/net/batman-adv/routing.h
index afd15b3879f1..e9849f032a24 100644
--- a/net/batman-adv/routing.h
+++ b/net/batman-adv/routing.h
@@ -27,6 +27,17 @@ int batadv_recv_frag_packet(struct sk_buff *skb,
struct batadv_hard_iface *iface);
int batadv_recv_bcast_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if);
+#ifdef CONFIG_BATMAN_ADV_MCAST
+int batadv_recv_mcast_packet(struct sk_buff *skb,
+ struct batadv_hard_iface *recv_if);
+#else
+static inline int batadv_recv_mcast_packet(struct sk_buff *skb,
+ struct batadv_hard_iface *recv_if)
+{
+ kfree_skb(skb);
+ return NET_RX_DROP;
+}
+#endif
int batadv_recv_unicast_tvlv(struct sk_buff *skb,
struct batadv_hard_iface *recv_if);
int batadv_recv_unhandled_unicast_packet(struct sk_buff *skb,
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 1bf1232a4f75..1b0e2c59aef2 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -925,6 +925,18 @@ static const struct {
{ "tt_response_rx" },
{ "tt_roam_adv_tx" },
{ "tt_roam_adv_rx" },
+#ifdef CONFIG_BATMAN_ADV_MCAST
+ { "mcast_tx" },
+ { "mcast_tx_bytes" },
+ { "mcast_tx_local" },
+ { "mcast_tx_local_bytes" },
+ { "mcast_rx" },
+ { "mcast_rx_bytes" },
+ { "mcast_rx_local" },
+ { "mcast_rx_local_bytes" },
+ { "mcast_fwd" },
+ { "mcast_fwd_bytes" },
+#endif
#ifdef CONFIG_BATMAN_ADV_DAT
{ "dat_get_tx" },
{ "dat_get_rx" },
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 17d5ea1d8e84..850b184e5b04 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -862,6 +862,70 @@ enum batadv_counters {
*/
BATADV_CNT_TT_ROAM_ADV_RX,
+#ifdef CONFIG_BATMAN_ADV_MCAST
+ /**
+ * @BATADV_CNT_MCAST_TX: transmitted batman-adv multicast packets
+ * counter
+ */
+ BATADV_CNT_MCAST_TX,
+
+ /**
+ * @BATADV_CNT_MCAST_TX_BYTES: transmitted batman-adv multicast packets
+ * bytes counter
+ */
+ BATADV_CNT_MCAST_TX_BYTES,
+
+ /**
+ * @BATADV_CNT_MCAST_TX_LOCAL: counter for multicast packets which
+ * were locally encapsulated and transmitted as batman-adv multicast
+ * packets
+ */
+ BATADV_CNT_MCAST_TX_LOCAL,
+
+ /**
+ * @BATADV_CNT_MCAST_TX_LOCAL_BYTES: bytes counter for multicast packets
+ * which were locally encapsulated and transmitted as batman-adv
+ * multicast packets
+ */
+ BATADV_CNT_MCAST_TX_LOCAL_BYTES,
+
+ /**
+ * @BATADV_CNT_MCAST_RX: received batman-adv multicast packet counter
+ */
+ BATADV_CNT_MCAST_RX,
+
+ /**
+ * @BATADV_CNT_MCAST_RX_BYTES: received batman-adv multicast packet
+ * bytes counter
+ */
+ BATADV_CNT_MCAST_RX_BYTES,
+
+ /**
+ * @BATADV_CNT_MCAST_RX_LOCAL: counter for received batman-adv multicast
+ * packets which were forwarded to the local soft interface
+ */
+ BATADV_CNT_MCAST_RX_LOCAL,
+
+ /**
+ * @BATADV_CNT_MCAST_RX_LOCAL_BYTES: bytes counter for received
+ * batman-adv multicast packets which were forwarded to the local soft
+ * interface
+ */
+ BATADV_CNT_MCAST_RX_LOCAL_BYTES,
+
+ /**
+ * @BATADV_CNT_MCAST_FWD: counter for received batman-adv multicast
+ * packets which were forwarded to other, neighboring nodes
+ */
+ BATADV_CNT_MCAST_FWD,
+
+ /**
+ * @BATADV_CNT_MCAST_FWD_BYTES: bytes counter for received batman-adv
+ * multicast packets which were forwarded to other, neighboring nodes
+ */
+ BATADV_CNT_MCAST_FWD_BYTES,
+#endif
+
#ifdef CONFIG_BATMAN_ADV_DAT
/**
* @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter
--
linux integration
1
0
[linux-merge]linux integration; branch, batadv/net-next, updated. v6.6-rc1-4-g7c72a44efd53
by postmasterï¼ open-mesh.org 24 Sep '23
by postmasterï¼ open-mesh.org 24 Sep '23
24 Sep '23
The following commit has been merged in the batadv/net-next branch:
commit e7e5aaf5b182cadd0338c9172c0efb624ebbd683
Author: Linus Lüssing <linus.luessing(a)c0d3.blue>
Date: Thu Sep 7 03:09:09 2023 +0200
batman-adv: mcast: implement multicast packet generation
Implement the preparation of a batman-adv multicast packet and use this
under certain conditions.
For one thing this implements the capability to push a complete
batman-adv multicast packet header, including a tracker TVLV with all
originator destinations that have signaled interest in it, onto a given
ethernet frame with an IP multicast packet inside.
For another checks are implemented to determine if encapsulating a
multicast packet in this new batman-adv multicast packet type and using
it is feasible. Those checks are:
1) Have all nodes signaled that they are capable of handling the new
batman-adv multicast packet type?
2) Do all active hard interfaces of all nodes, including us, have an MTU
of at least 1280 bytes?
3) Does a complete multicast packet header with all its destination
addresses fit onto the given multicast packet / ethernet frame and
does not exceed 1280 bytes?
If all checks passed then the new batman-adv multicast packet type will
be used for transmission and distribution. Otherwise we fall back to one or
more batman-adv unicast packet transmissions, if possible. Or if not
possible we will fall back to classic flooding through a batman-adv
broadcast packet.
Signed-off-by: Linus Lüssing <linus.luessing(a)c0d3.blue>
Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de>
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index dfc2c645b13f..62288afdad49 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -1169,17 +1169,62 @@ static int batadv_mcast_forw_rtr_count(struct batadv_priv *bat_priv,
}
}
+/**
+ * batadv_mcast_forw_mode_by_count() - get forwarding mode by count
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the multicast packet to check
+ * @vid: the vlan identifier
+ * @is_routable: stores whether the destination is routable
+ * @count: the number of originators the multicast packet need to be sent to
+ *
+ * For a multicast packet with multiple destination originators, checks which
+ * mode to use. For BATADV_FORW_MCAST it also encapsulates the packet with a
+ * complete batman-adv multicast header.
+ *
+ * Return:
+ * BATADV_FORW_MCAST: If all nodes have multicast packet routing
+ * capabilities and an MTU >= 1280 on all hard interfaces (including us)
+ * and the encapsulated multicast packet with all destination addresses
+ * would still fit into an 1280 bytes batman-adv multicast packet
+ * (excluding the outer ethernet frame) and we could successfully push
+ * the full batman-adv multicast packet header.
+ * BATADV_FORW_UCASTS: If the packet cannot be sent in a batman-adv
+ * multicast packet and the amount of batman-adv unicast packets needed
+ * is smaller or equal to the configured multicast fanout.
+ * BATADV_FORW_BCAST: Otherwise.
+ */
+static enum batadv_forw_mode
+batadv_mcast_forw_mode_by_count(struct batadv_priv *bat_priv,
+ struct sk_buff *skb, unsigned short vid,
+ int is_routable, int count)
+{
+ unsigned int mcast_hdrlen = batadv_mcast_forw_packet_hdrlen(count);
+ u8 own_tvlv_flags = bat_priv->mcast.mla_flags.tvlv_flags;
+
+ if (!atomic_read(&bat_priv->mcast.num_no_mc_ptype_capa) &&
+ own_tvlv_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA &&
+ skb->len + mcast_hdrlen <= IPV6_MIN_MTU &&
+ batadv_mcast_forw_push(bat_priv, skb, vid, is_routable, count))
+ return BATADV_FORW_MCAST;
+
+ if (count <= atomic_read(&bat_priv->multicast_fanout))
+ return BATADV_FORW_UCASTS;
+
+ return BATADV_FORW_BCAST;
+}
+
/**
* batadv_mcast_forw_mode() - check on how to forward a multicast packet
* @bat_priv: the bat priv with all the soft interface information
* @skb: the multicast packet to check
+ * @vid: the vlan identifier
* @is_routable: stores whether the destination is routable
*
* Return: The forwarding mode as enum batadv_forw_mode.
*/
enum batadv_forw_mode
batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
- int *is_routable)
+ unsigned short vid, int *is_routable)
{
int ret, tt_count, ip_count, unsnoop_count, total_count;
bool is_unsnoopable = false;
@@ -1209,10 +1254,8 @@ batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
else if (unsnoop_count)
return BATADV_FORW_BCAST;
- if (total_count <= atomic_read(&bat_priv->multicast_fanout))
- return BATADV_FORW_UCASTS;
-
- return BATADV_FORW_BCAST;
+ return batadv_mcast_forw_mode_by_count(bat_priv, skb, vid, *is_routable,
+ total_count);
}
/**
@@ -1772,6 +1815,31 @@ static void batadv_mcast_want_rtr6_update(struct batadv_priv *bat_priv,
}
}
+/**
+ * batadv_mcast_have_mc_ptype_update() - update multicast packet type counter
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig: the orig_node which multicast state might have changed of
+ * @mcast_flags: flags indicating the new multicast state
+ *
+ * If the BATADV_MCAST_HAVE_MC_PTYPE_CAPA flag of this originator, orig, has
+ * toggled then this method updates the counter accordingly.
+ */
+static void batadv_mcast_have_mc_ptype_update(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig,
+ u8 mcast_flags)
+{
+ lockdep_assert_held(&orig->mcast_handler_lock);
+
+ /* switched from flag set to unset */
+ if (!(mcast_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA) &&
+ orig->mcast_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA)
+ atomic_inc(&bat_priv->mcast.num_no_mc_ptype_capa);
+ /* switched from flag unset to set */
+ else if (mcast_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA &&
+ !(orig->mcast_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA))
+ atomic_dec(&bat_priv->mcast.num_no_mc_ptype_capa);
+}
+
/**
* batadv_mcast_tvlv_flags_get() - get multicast flags from an OGM TVLV
* @enabled: whether the originator has multicast TVLV support enabled
@@ -1840,6 +1908,7 @@ static void batadv_mcast_tvlv_ogm_handler(struct batadv_priv *bat_priv,
batadv_mcast_want_ipv6_update(bat_priv, orig, mcast_flags);
batadv_mcast_want_rtr4_update(bat_priv, orig, mcast_flags);
batadv_mcast_want_rtr6_update(bat_priv, orig, mcast_flags);
+ batadv_mcast_have_mc_ptype_update(bat_priv, orig, mcast_flags);
orig->mcast_flags = mcast_flags;
spin_unlock_bh(&orig->mcast_handler_lock);
diff --git a/net/batman-adv/multicast.h b/net/batman-adv/multicast.h
index a5c0f384bb9a..d97ee51d26f2 100644
--- a/net/batman-adv/multicast.h
+++ b/net/batman-adv/multicast.h
@@ -11,6 +11,7 @@
#include <linux/netlink.h>
#include <linux/skbuff.h>
+#include <linux/types.h>
/**
* enum batadv_forw_mode - the way a packet should be forwarded as
@@ -28,6 +29,12 @@ enum batadv_forw_mode {
*/
BATADV_FORW_UCASTS,
+ /**
+ * @BATADV_FORW_MCAST: forward the packet to some nodes via a
+ * batman-adv multicast packet
+ */
+ BATADV_FORW_MCAST,
+
/** @BATADV_FORW_NONE: don't forward, drop it */
BATADV_FORW_NONE,
};
@@ -36,7 +43,7 @@ enum batadv_forw_mode {
enum batadv_forw_mode
batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
- int *is_routable);
+ unsigned short vid, int *is_routable);
int batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb,
unsigned short vid, int is_routable);
@@ -57,11 +64,18 @@ void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node);
int batadv_mcast_forw_tracker_tvlv_handler(struct batadv_priv *bat_priv,
struct sk_buff *skb);
+unsigned int batadv_mcast_forw_packet_hdrlen(unsigned int num_dests);
+
+bool batadv_mcast_forw_push(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ unsigned short vid, int is_routable, int count);
+
+int batadv_mcast_forw_mcsend(struct batadv_priv *bat_priv, struct sk_buff *skb);
+
#else
static inline enum batadv_forw_mode
batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
- int *is_routable)
+ unsigned short vid, int *is_routable)
{
return BATADV_FORW_BCAST;
}
@@ -99,6 +113,13 @@ static inline void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node)
{
}
+static inline int batadv_mcast_forw_mcsend(struct batadv_priv *bat_priv,
+ struct sk_buff *skb)
+{
+ kfree_skb(skb);
+ return NET_XMIT_DROP;
+}
+
#endif /* CONFIG_BATMAN_ADV_MCAST */
#endif /* _NET_BATMAN_ADV_MULTICAST_H_ */
diff --git a/net/batman-adv/multicast_forw.c b/net/batman-adv/multicast_forw.c
index 4382682e198b..1102090ae518 100644
--- a/net/batman-adv/multicast_forw.c
+++ b/net/batman-adv/multicast_forw.c
@@ -7,20 +7,31 @@
#include "multicast.h"
#include "main.h"
+#include <linux/bug.h>
+#include <linux/build_bug.h>
#include <linux/byteorder/generic.h>
+#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/ipv6.h>
+#include <linux/limits.h>
#include <linux/netdevice.h>
+#include <linux/rculist.h>
+#include <linux/rcupdate.h>
#include <linux/skbuff.h>
#include <linux/stddef.h>
+#include <linux/string.h>
#include <linux/types.h>
#include <uapi/linux/batadv_packet.h>
+#include "bridge_loop_avoidance.h"
#include "originator.h"
#include "routing.h"
#include "send.h"
+#include "translation-table.h"
#define batadv_mcast_forw_tracker_for_each_dest(dest, num_dests) \
for (; num_dests; num_dests--, (dest) += ETH_ALEN)
@@ -28,6 +39,600 @@
#define batadv_mcast_forw_tracker_for_each_dest2(dest1, dest2, num_dests) \
for (; num_dests; num_dests--, (dest1) += ETH_ALEN, (dest2) += ETH_ALEN)
+/**
+ * batadv_mcast_forw_skb_push() - skb_push and memorize amount of pushed bytes
+ * @skb: the skb to push onto
+ * @size: the amount of bytes to push
+ * @len: stores the total amount of bytes pushed
+ *
+ * Performs an skb_push() onto the given skb and adds the amount of pushed bytes
+ * to the given len pointer.
+ *
+ * Return: the return value of the skb_push() call.
+ */
+static void *batadv_mcast_forw_skb_push(struct sk_buff *skb, size_t size,
+ unsigned short *len)
+{
+ *len += size;
+ return skb_push(skb, size);
+}
+
+/**
+ * batadv_mcast_forw_push_padding() - push 2 padding bytes to skb's front
+ * @skb: the skb to push onto
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Pushes two padding bytes to the front of the given skb.
+ *
+ * Return: On success a pointer to the first byte of the two pushed padding
+ * bytes within the skb. NULL otherwise.
+ */
+static char *
+batadv_mcast_forw_push_padding(struct sk_buff *skb, unsigned short *tvlv_len)
+{
+ const int pad_len = 2;
+ char *padding;
+
+ if (skb_headroom(skb) < pad_len)
+ return NULL;
+
+ padding = batadv_mcast_forw_skb_push(skb, pad_len, tvlv_len);
+ memset(padding, 0, pad_len);
+
+ return padding;
+}
+
+/**
+ * batadv_mcast_forw_push_est_padding() - push padding bytes if necessary
+ * @skb: the skb to potentially push the padding onto
+ * @count: the (estimated) number of originators the multicast packet needs to
+ * be sent to
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * If the number of destination entries is even then this adds two
+ * padding bytes to the end of the tracker TVLV.
+ *
+ * Return: true on success or if no padding is needed, false otherwise.
+ */
+static bool
+batadv_mcast_forw_push_est_padding(struct sk_buff *skb, int count,
+ unsigned short *tvlv_len)
+{
+ if (!(count % 2) && !batadv_mcast_forw_push_padding(skb, tvlv_len))
+ return false;
+
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_orig_entry() - get orig_node from an hlist node
+ * @node: the hlist node to get the orig_node from
+ * @entry_offset: the offset of the hlist node within the orig_node struct
+ *
+ * Return: The orig_node containing the hlist node on success, NULL on error.
+ */
+static struct batadv_orig_node *
+batadv_mcast_forw_orig_entry(struct hlist_node *node,
+ size_t entry_offset)
+{
+ /* sanity check */
+ switch (entry_offset) {
+ case offsetof(struct batadv_orig_node, mcast_want_all_ipv4_node):
+ case offsetof(struct batadv_orig_node, mcast_want_all_ipv6_node):
+ case offsetof(struct batadv_orig_node, mcast_want_all_rtr4_node):
+ case offsetof(struct batadv_orig_node, mcast_want_all_rtr6_node):
+ break;
+ default:
+ WARN_ON(1);
+ return NULL;
+ }
+
+ return (struct batadv_orig_node *)((void *)node - entry_offset);
+}
+
+/**
+ * batadv_mcast_forw_push_dest() - push an originator MAC address onto an skb
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination address onto
+ * @vid: the vlan identifier
+ * @orig_node: the originator node to get the MAC address from
+ * @num_dests: a pointer to store the number of pushed addresses in
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * If the orig_node is a BLA backbone gateway, if there is not enough skb
+ * headroom available or if num_dests is already at its maximum (65535) then
+ * neither the skb nor num_dests is changed. Otherwise the originator's MAC
+ * address is pushed onto the given skb and num_dests incremented by one.
+ *
+ * Return: true if the orig_node is a backbone gateway or if an orig address
+ * was pushed successfully, false otherwise.
+ */
+static bool batadv_mcast_forw_push_dest(struct batadv_priv *bat_priv,
+ struct sk_buff *skb, unsigned short vid,
+ struct batadv_orig_node *orig_node,
+ unsigned short *num_dests,
+ unsigned short *tvlv_len)
+{
+ BUILD_BUG_ON(sizeof_field(struct batadv_tvlv_mcast_tracker, num_dests)
+ != sizeof(__be16));
+
+ /* Avoid sending to other BLA gateways - they already got the frame from
+ * the LAN side we share with them.
+ * TODO: Refactor to take BLA into account earlier in mode check.
+ */
+ if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig, vid))
+ return true;
+
+ if (skb_headroom(skb) < ETH_ALEN || *num_dests == U16_MAX)
+ return false;
+
+ batadv_mcast_forw_skb_push(skb, ETH_ALEN, tvlv_len);
+ ether_addr_copy(skb->data, orig_node->orig);
+ (*num_dests)++;
+
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_push_dests_list() - push originators from list onto an skb
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination addresses onto
+ * @vid: the vlan identifier
+ * @head: the list to gather originators from
+ * @entry_offset: offset of an hlist node in an orig_node structure
+ * @num_dests: a pointer to store the number of pushed addresses in
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Push the MAC addresses of all originators in the given list onto the given
+ * skb.
+ *
+ * Return: true on success, false otherwise.
+ */
+static int batadv_mcast_forw_push_dests_list(struct batadv_priv *bat_priv,
+ struct sk_buff *skb,
+ unsigned short vid,
+ struct hlist_head *head,
+ size_t entry_offset,
+ unsigned short *num_dests,
+ unsigned short *tvlv_len)
+{
+ struct hlist_node *node;
+ struct batadv_orig_node *orig_node;
+
+ rcu_read_lock();
+ __hlist_for_each_rcu(node, head) {
+ orig_node = batadv_mcast_forw_orig_entry(node, entry_offset);
+ if (!orig_node ||
+ !batadv_mcast_forw_push_dest(bat_priv, skb, vid, orig_node,
+ num_dests, tvlv_len)) {
+ rcu_read_unlock();
+ return false;
+ }
+ }
+ rcu_read_unlock();
+
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_push_tt() - push originators with interest through TT
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination addresses onto
+ * @vid: the vlan identifier
+ * @num_dests: a pointer to store the number of pushed addresses in
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Push the MAC addresses of all originators which have indicated interest in
+ * this multicast packet through the translation table onto the given skb.
+ *
+ * Return: true on success, false otherwise.
+ */
+static bool
+batadv_mcast_forw_push_tt(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ unsigned short vid, unsigned short *num_dests,
+ unsigned short *tvlv_len)
+{
+ struct batadv_tt_orig_list_entry *orig_entry;
+
+ struct batadv_tt_global_entry *tt_global;
+ const u8 *addr = eth_hdr(skb)->h_dest;
+
+ /* ok */
+ int ret = true;
+
+ tt_global = batadv_tt_global_hash_find(bat_priv, addr, vid);
+ if (!tt_global)
+ goto out;
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(orig_entry, &tt_global->orig_list, list) {
+ if (!batadv_mcast_forw_push_dest(bat_priv, skb, vid,
+ orig_entry->orig_node,
+ num_dests, tvlv_len)) {
+ ret = false;
+ break;
+ }
+ }
+ rcu_read_unlock();
+
+ batadv_tt_global_entry_put(tt_global);
+
+out:
+ return ret;
+}
+
+/**
+ * batadv_mcast_forw_push_want_all() - push originators with want-all flag
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination addresses onto
+ * @vid: the vlan identifier
+ * @num_dests: a pointer to store the number of pushed addresses in
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Push the MAC addresses of all originators which have indicated interest in
+ * this multicast packet through the want-all flag onto the given skb.
+ *
+ * Return: true on success, false otherwise.
+ */
+static bool batadv_mcast_forw_push_want_all(struct batadv_priv *bat_priv,
+ struct sk_buff *skb,
+ unsigned short vid,
+ unsigned short *num_dests,
+ unsigned short *tvlv_len)
+{
+ struct hlist_head *head = NULL;
+ size_t offset;
+ int ret;
+
+ switch (eth_hdr(skb)->h_proto) {
+ case htons(ETH_P_IP):
+ head = &bat_priv->mcast.want_all_ipv4_list;
+ offset = offsetof(struct batadv_orig_node,
+ mcast_want_all_ipv4_node);
+ break;
+ case htons(ETH_P_IPV6):
+ head = &bat_priv->mcast.want_all_ipv6_list;
+ offset = offsetof(struct batadv_orig_node,
+ mcast_want_all_ipv6_node);
+ break;
+ default:
+ return false;
+ }
+
+ ret = batadv_mcast_forw_push_dests_list(bat_priv, skb, vid, head,
+ offset, num_dests, tvlv_len);
+ if (!ret)
+ return false;
+
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_push_want_rtr() - push originators with want-router flag
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination addresses onto
+ * @vid: the vlan identifier
+ * @num_dests: a pointer to store the number of pushed addresses in
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Push the MAC addresses of all originators which have indicated interest in
+ * this multicast packet through the want-all-rtr flag onto the given skb.
+ *
+ * Return: true on success, false otherwise.
+ */
+static bool batadv_mcast_forw_push_want_rtr(struct batadv_priv *bat_priv,
+ struct sk_buff *skb,
+ unsigned short vid,
+ unsigned short *num_dests,
+ unsigned short *tvlv_len)
+{
+ struct hlist_head *head = NULL;
+ size_t offset;
+ int ret;
+
+ switch (eth_hdr(skb)->h_proto) {
+ case htons(ETH_P_IP):
+ head = &bat_priv->mcast.want_all_rtr4_list;
+ offset = offsetof(struct batadv_orig_node,
+ mcast_want_all_rtr4_node);
+ break;
+ case htons(ETH_P_IPV6):
+ head = &bat_priv->mcast.want_all_rtr6_list;
+ offset = offsetof(struct batadv_orig_node,
+ mcast_want_all_rtr6_node);
+ break;
+ default:
+ return false;
+ }
+
+ ret = batadv_mcast_forw_push_dests_list(bat_priv, skb, vid, head,
+ offset, num_dests, tvlv_len);
+ if (!ret)
+ return false;
+
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_scrape() - remove bytes within skb data
+ * @skb: the skb to remove bytes from
+ * @offset: the offset from the skb data from which to scrape
+ * @len: the amount of bytes to scrape starting from the offset
+ *
+ * Scrapes/removes len bytes from the given skb at the given offset from the
+ * skb data.
+ *
+ * Caller needs to ensure that the region from the skb data's start up
+ * to/including the to be removed bytes are linearized.
+ */
+static void batadv_mcast_forw_scrape(struct sk_buff *skb,
+ unsigned short offset,
+ unsigned short len)
+{
+ char *to, *from;
+
+ SKB_LINEAR_ASSERT(skb);
+
+ to = skb_pull(skb, len);
+ from = to - len;
+
+ memmove(to, from, offset);
+}
+
+/**
+ * batadv_mcast_forw_push_scrape_padding() - remove TVLV padding
+ * @skb: the skb to potentially adjust the TVLV's padding on
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Remove two padding bytes from the end of the multicast tracker TVLV,
+ * from before the payload data.
+ *
+ * Caller needs to ensure that the TVLV bytes are linearized.
+ */
+static void batadv_mcast_forw_push_scrape_padding(struct sk_buff *skb,
+ unsigned short *tvlv_len)
+{
+ const int pad_len = 2;
+
+ batadv_mcast_forw_scrape(skb, *tvlv_len - pad_len, pad_len);
+ *tvlv_len -= pad_len;
+}
+
+/**
+ * batadv_mcast_forw_push_insert_padding() - insert TVLV padding
+ * @skb: the skb to potentially adjust the TVLV's padding on
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Inserts two padding bytes at the end of the multicast tracker TVLV,
+ * before the payload data in the given skb.
+ *
+ * Return: true on success, false otherwise.
+ */
+static bool batadv_mcast_forw_push_insert_padding(struct sk_buff *skb,
+ unsigned short *tvlv_len)
+{
+ unsigned short offset = *tvlv_len;
+ char *to, *from = skb->data;
+
+ to = batadv_mcast_forw_push_padding(skb, tvlv_len);
+ if (!to)
+ return false;
+
+ memmove(to, from, offset);
+ memset(to + offset, 0, *tvlv_len - offset);
+ return true;
+}
+
+/**
+ * batadv_mcast_forw_push_adjust_padding() - adjust padding if necessary
+ * @skb: the skb to potentially adjust the TVLV's padding on
+ * @count: the estimated number of originators the multicast packet needs to
+ * be sent to
+ * @num_dests_pushed: the number of originators that were actually added to the
+ * multicast packet's tracker TVLV
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Adjusts the padding in the multicast packet's tracker TVLV depending on the
+ * initially estimated amount of destinations versus the amount of destinations
+ * that were actually added to the tracker TVLV.
+ *
+ * If the initial estimate was correct or at least the oddness was the same then
+ * no padding adjustment is performed.
+ * If the initially estimated number was even, so padding was initially added,
+ * but it turned out to be odd then padding is removed.
+ * If the initially estimated number was odd, so no padding was initially added,
+ * but it turned out to be even then padding is added.
+ *
+ * Return: true if no padding adjustment is needed or the adjustment was
+ * successful, false otherwise.
+ */
+static bool
+batadv_mcast_forw_push_adjust_padding(struct sk_buff *skb, int *count,
+ unsigned short num_dests_pushed,
+ unsigned short *tvlv_len)
+{
+ int ret = true;
+
+ if (likely((num_dests_pushed % 2) == (*count % 2)))
+ goto out;
+
+ /**
+ * estimated even number of destinations, but turned out to be odd
+ * -> remove padding
+ */
+ if (!(*count % 2) && (num_dests_pushed % 2))
+ batadv_mcast_forw_push_scrape_padding(skb, tvlv_len);
+ /**
+ * estimated odd number of destinations, but turned out to be even
+ * -> add padding
+ */
+ else if ((*count % 2) && (!(num_dests_pushed % 2)))
+ ret = batadv_mcast_forw_push_insert_padding(skb, tvlv_len);
+
+out:
+ *count = num_dests_pushed;
+ return ret;
+}
+
+/**
+ * batadv_mcast_forw_push_dests() - push originator addresses onto an skb
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the destination addresses onto
+ * @vid: the vlan identifier
+ * @is_routable: indicates whether the destination is routable
+ * @count: the number of originators the multicast packet needs to be sent to
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Push the MAC addresses of all originators which have indicated interest in
+ * this multicast packet onto the given skb.
+ *
+ * Return: -ENOMEM if there is not enough skb headroom available. Otherwise, on
+ * success 0.
+ */
+static int
+batadv_mcast_forw_push_dests(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ unsigned short vid, int is_routable, int *count,
+ unsigned short *tvlv_len)
+{
+ unsigned short num_dests = 0;
+
+ if (!batadv_mcast_forw_push_est_padding(skb, *count, tvlv_len))
+ goto err;
+
+ if (!batadv_mcast_forw_push_tt(bat_priv, skb, vid, &num_dests,
+ tvlv_len))
+ goto err;
+
+ if (!batadv_mcast_forw_push_want_all(bat_priv, skb, vid, &num_dests,
+ tvlv_len))
+ goto err;
+
+ if (is_routable &&
+ !batadv_mcast_forw_push_want_rtr(bat_priv, skb, vid, &num_dests,
+ tvlv_len))
+ goto err;
+
+ if (!batadv_mcast_forw_push_adjust_padding(skb, count, num_dests,
+ tvlv_len))
+ goto err;
+
+ return 0;
+err:
+ return -ENOMEM;
+}
+
+/**
+ * batadv_mcast_forw_push_tracker() - push a multicast tracker TVLV header
+ * @skb: the skb to push the tracker TVLV onto
+ * @num_dests: the number of destination addresses to set in the header
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Pushes a multicast tracker TVLV header onto the given skb, including the
+ * generic TVLV header but excluding the destination MAC addresses.
+ *
+ * The provided num_dests value is taken into consideration to set the
+ * num_dests field in the tracker header and to set the appropriate TVLV length
+ * value fields.
+ *
+ * Return: -ENOMEM if there is not enough skb headroom available. Otherwise, on
+ * success 0.
+ */
+static int batadv_mcast_forw_push_tracker(struct sk_buff *skb, int num_dests,
+ unsigned short *tvlv_len)
+{
+ struct batadv_tvlv_mcast_tracker *mcast_tracker;
+ struct batadv_tvlv_hdr *tvlv_hdr;
+ unsigned int tvlv_value_len;
+
+ if (skb_headroom(skb) < sizeof(*mcast_tracker) + sizeof(*tvlv_hdr))
+ return -ENOMEM;
+
+ tvlv_value_len = sizeof(*mcast_tracker) + *tvlv_len;
+ if (tvlv_value_len + sizeof(*tvlv_hdr) > U16_MAX)
+ return -ENOMEM;
+
+ batadv_mcast_forw_skb_push(skb, sizeof(*mcast_tracker), tvlv_len);
+ mcast_tracker = (struct batadv_tvlv_mcast_tracker *)skb->data;
+ mcast_tracker->num_dests = htons(num_dests);
+
+ skb_reset_network_header(skb);
+
+ batadv_mcast_forw_skb_push(skb, sizeof(*tvlv_hdr), tvlv_len);
+ tvlv_hdr = (struct batadv_tvlv_hdr *)skb->data;
+ tvlv_hdr->type = BATADV_TVLV_MCAST_TRACKER;
+ tvlv_hdr->version = 1;
+ tvlv_hdr->len = htons(tvlv_value_len);
+
+ return 0;
+}
+
+/**
+ * batadv_mcast_forw_push_tvlvs() - push a multicast tracker TVLV onto an skb
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb to push the tracker TVLV onto
+ * @vid: the vlan identifier
+ * @is_routable: indicates whether the destination is routable
+ * @count: the number of originators the multicast packet needs to be sent to
+ * @tvlv_len: stores the amount of currently pushed TVLV bytes
+ *
+ * Pushes a multicast tracker TVLV onto the given skb, including the collected
+ * destination MAC addresses and the generic TVLV header.
+ *
+ * Return: -ENOMEM if there is not enough skb headroom available. Otherwise, on
+ * success 0.
+ */
+static int
+batadv_mcast_forw_push_tvlvs(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ unsigned short vid, int is_routable, int count,
+ unsigned short *tvlv_len)
+{
+ int ret;
+
+ ret = batadv_mcast_forw_push_dests(bat_priv, skb, vid, is_routable,
+ &count, tvlv_len);
+ if (ret < 0)
+ return ret;
+
+ ret = batadv_mcast_forw_push_tracker(skb, count, tvlv_len);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+/**
+ * batadv_mcast_forw_push_hdr() - push a multicast packet header onto an skb
+ * @skb: the skb to push the header onto
+ * @tvlv_len: the total TVLV length value to set in the header
+ *
+ * Pushes a batman-adv multicast packet header onto the given skb and sets
+ * the provided total TVLV length value in it.
+ *
+ * Caller needs to ensure enough skb headroom is available.
+ *
+ * Return: -ENOMEM if there is not enough skb headroom available. Otherwise, on
+ * success 0.
+ */
+static int
+batadv_mcast_forw_push_hdr(struct sk_buff *skb, unsigned short tvlv_len)
+{
+ struct batadv_mcast_packet *mcast_packet;
+
+ if (skb_headroom(skb) < sizeof(*mcast_packet))
+ return -ENOMEM;
+
+ skb_push(skb, sizeof(*mcast_packet));
+
+ mcast_packet = (struct batadv_mcast_packet *)skb->data;
+ mcast_packet->version = BATADV_COMPAT_VERSION;
+ mcast_packet->ttl = BATADV_TTL;
+ mcast_packet->packet_type = BATADV_MCAST;
+ mcast_packet->reserved = 0;
+ mcast_packet->tvlv_len = htons(tvlv_len);
+
+ return 0;
+}
+
/**
* batadv_mcast_forw_scrub_dests() - scrub destinations in a tracker TVLV
* @bat_priv: the bat priv with all the soft interface information
@@ -238,3 +843,130 @@ int batadv_mcast_forw_tracker_tvlv_handler(struct batadv_priv *bat_priv,
{
return batadv_mcast_forw_packet(bat_priv, skb, false);
}
+
+/**
+ * batadv_mcast_forw_packet_hdrlen() - multicast packet header length
+ * @num_dests: number of destination nodes
+ *
+ * Calculates the total batman-adv multicast packet header length for a given
+ * number of destination nodes (excluding the outer ethernet frame).
+ *
+ * Return: The calculated total batman-adv multicast packet header length.
+ */
+unsigned int batadv_mcast_forw_packet_hdrlen(unsigned int num_dests)
+{
+ /**
+ * If the number of destination entries is even then we need to add
+ * two byte padding to the tracker TVLV.
+ */
+ int padding = (!(num_dests % 2)) ? 2 : 0;
+
+ return padding + num_dests * ETH_ALEN +
+ sizeof(struct batadv_tvlv_mcast_tracker) +
+ sizeof(struct batadv_tvlv_hdr) +
+ sizeof(struct batadv_mcast_packet);
+}
+
+/**
+ * batadv_mcast_forw_expand_head() - expand headroom for an mcast packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the multicast packet to send
+ *
+ * Tries to expand an skb's headroom so that its head to tail is 1298
+ * bytes (minimum IPv6 MTU + vlan ethernet header size) large.
+ *
+ * Return: -EINVAL if the given skb's length is too large or -ENOMEM on memory
+ * allocation failure. Otherwise, on success, zero is returned.
+ */
+static int batadv_mcast_forw_expand_head(struct batadv_priv *bat_priv,
+ struct sk_buff *skb)
+{
+ int hdr_size = VLAN_ETH_HLEN + IPV6_MIN_MTU - skb->len;
+
+ /* TODO: Could be tightened to actual number of destination nodes?
+ * But it's tricky, number of destinations might have increased since
+ * we last checked.
+ */
+ if (hdr_size < 0) {
+ /* batadv_mcast_forw_mode_check_count() should ensure we do not
+ * end up here
+ */
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ if (skb_headroom(skb) < hdr_size &&
+ pskb_expand_head(skb, hdr_size, 0, GFP_ATOMIC) < 0)
+ return -ENOMEM;
+
+ return 0;
+}
+
+/**
+ * batadv_mcast_forw_push() - encapsulate skb in a batman-adv multicast packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the multicast packet to encapsulate and send
+ * @vid: the vlan identifier
+ * @is_routable: indicates whether the destination is routable
+ * @count: the number of originators the multicast packet needs to be sent to
+ *
+ * Encapsulates the given multicast packet in a batman-adv multicast packet.
+ * A multicast tracker TVLV with destination originator addresses for any node
+ * that signaled interest in it, that is either via the translation table or the
+ * according want-all flags, is attached accordingly.
+ *
+ * Return: true on success, false otherwise.
+ */
+bool batadv_mcast_forw_push(struct batadv_priv *bat_priv, struct sk_buff *skb,
+ unsigned short vid, int is_routable, int count)
+{
+ unsigned short tvlv_len = 0;
+ int ret;
+
+ if (batadv_mcast_forw_expand_head(bat_priv, skb) < 0)
+ goto err;
+
+ skb_reset_transport_header(skb);
+
+ ret = batadv_mcast_forw_push_tvlvs(bat_priv, skb, vid, is_routable,
+ count, &tvlv_len);
+ if (ret < 0)
+ goto err;
+
+ ret = batadv_mcast_forw_push_hdr(skb, tvlv_len);
+ if (ret < 0)
+ goto err;
+
+ return true;
+
+err:
+ if (tvlv_len)
+ skb_pull(skb, tvlv_len);
+
+ return false;
+}
+
+/**
+ * batadv_mcast_forw_mcsend() - send a self prepared batman-adv multicast packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the multicast packet to encapsulate and send
+ *
+ * Transmits a batman-adv multicast packet that was locally prepared and
+ * consumes/frees it.
+ *
+ * Return: NET_XMIT_DROP on memory allocation failure. NET_XMIT_SUCCESS
+ * otherwise.
+ */
+int batadv_mcast_forw_mcsend(struct batadv_priv *bat_priv,
+ struct sk_buff *skb)
+{
+ int ret = batadv_mcast_forw_packet(bat_priv, skb, true);
+
+ if (ret < 0) {
+ kfree_skb(skb);
+ return NET_XMIT_DROP;
+ }
+
+ consume_skb(skb);
+ return NET_XMIT_SUCCESS;
+}
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 1b0e2c59aef2..89c51b3cf430 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -301,12 +301,13 @@ static netdev_tx_t batadv_interface_tx(struct sk_buff *skb,
send:
if (do_bcast && !is_broadcast_ether_addr(ethhdr->h_dest)) {
- forw_mode = batadv_mcast_forw_mode(bat_priv, skb,
+ forw_mode = batadv_mcast_forw_mode(bat_priv, skb, vid,
&mcast_is_routable);
switch (forw_mode) {
case BATADV_FORW_BCAST:
break;
case BATADV_FORW_UCASTS:
+ case BATADV_FORW_MCAST:
do_bcast = false;
break;
case BATADV_FORW_NONE:
@@ -365,6 +366,8 @@ send:
} else if (forw_mode == BATADV_FORW_UCASTS) {
ret = batadv_mcast_forw_send(bat_priv, skb, vid,
mcast_is_routable);
+ } else if (forw_mode == BATADV_FORW_MCAST) {
+ ret = batadv_mcast_forw_mcsend(bat_priv, skb);
} else {
if (batadv_dat_snoop_outgoing_arp_request(bat_priv,
skb))
@@ -762,6 +765,7 @@ static int batadv_softif_init_late(struct net_device *dev)
atomic_set(&bat_priv->mcast.num_want_all_unsnoopables, 0);
atomic_set(&bat_priv->mcast.num_want_all_ipv4, 0);
atomic_set(&bat_priv->mcast.num_want_all_ipv6, 0);
+ atomic_set(&bat_priv->mcast.num_no_mc_ptype_capa, 0);
#endif
atomic_set(&bat_priv->gw.mode, BATADV_GW_MODE_OFF);
atomic_set(&bat_priv->gw.bandwidth_down, 100);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 850b184e5b04..00840d5784fe 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -1342,6 +1342,12 @@ struct batadv_priv_mcast {
/** @num_want_all_rtr6: counter for items in want_all_rtr6_list */
atomic_t num_want_all_rtr6;
+ /**
+ * @num_no_mc_ptype_capa: counter for number of nodes without the
+ * BATADV_MCAST_HAVE_MC_PTYPE_CAPA flag
+ */
+ atomic_t num_no_mc_ptype_capa;
+
/**
* @want_lists_lock: lock for protecting modifications to mcasts
* want_all_{unsnoopables,ipv4,ipv6}_list (traversals are rcu-locked)
--
linux integration
1
0
[linux-merge]linux integration; branch, batadv/net-next, updated. v6.6-rc1-4-g7c72a44efd53
by postmasterï¼ open-mesh.org 24 Sep '23
by postmasterï¼ open-mesh.org 24 Sep '23
24 Sep '23
The following commit has been merged in the batadv/net-next branch:
commit 7c72a44efd537d7b49066c32da73550de15c4b10
Author: Linus Lüssing <linus.luessing(a)c0d3.blue>
Date: Thu Sep 7 03:09:10 2023 +0200
batman-adv: mcast: shrink tracker packet after scrubbing
Remove all zero MAC address entries (00:00:00:00:00:00) from a multicast
packet's tracker TVLV before transmitting it and update all headers
accordingly. This way, instead of keeping the multicast packet at a
constant size throughout its journey through the mesh, it will become
more lightweight, smaller with every interested receiver on the way and
on each splitting intersection. Which can save some valuable bandwidth.
Signed-off-by: Linus Lüssing <linus.luessing(a)c0d3.blue>
Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de>
diff --git a/net/batman-adv/multicast_forw.c b/net/batman-adv/multicast_forw.c
index 1102090ae518..23aae4f60daa 100644
--- a/net/batman-adv/multicast_forw.c
+++ b/net/batman-adv/multicast_forw.c
@@ -698,6 +698,212 @@ batadv_mcast_forw_scrub_dests(struct batadv_priv *bat_priv,
}
}
+/**
+ * batadv_mcast_forw_shrink_fill() - swap slot with next non-zero destination
+ * @slot: the to be filled zero-MAC destination entry in a tracker TVLV
+ * @num_dests_slot: remaining entries in tracker TVLV from/including slot
+ *
+ * Searches for the next non-zero-MAC destination entry in a tracker TVLV after
+ * the given slot pointer. And if found, swaps it with the zero-MAC destination
+ * entry which the slot points to.
+ *
+ * Return: true if slot was swapped/filled successfully, false otherwise.
+ */
+static bool batadv_mcast_forw_shrink_fill(u8 *slot, u16 num_dests_slot)
+{
+ u16 num_dests_filler;
+ u8 *filler;
+
+ /* sanity check, should not happen */
+ if (!num_dests_slot)
+ return false;
+
+ num_dests_filler = num_dests_slot - 1;
+ filler = slot + ETH_ALEN;
+
+ /* find a candidate to fill the empty slot */
+ batadv_mcast_forw_tracker_for_each_dest(filler, num_dests_filler) {
+ if (is_zero_ether_addr(filler))
+ continue;
+
+ ether_addr_copy(slot, filler);
+ eth_zero_addr(filler);
+ return true;
+ }
+
+ return false;
+}
+
+/**
+ * batadv_mcast_forw_shrink_pack_dests() - pack destinations of a tracker TVLV
+ * @skb: the batman-adv multicast packet to compact destinations in
+ *
+ * Compacts the originator destination MAC addresses in the multicast tracker
+ * TVLV of the given multicast packet. This is done by moving all non-zero
+ * MAC addresses in direction of the skb head and all zero MAC addresses in skb
+ * tail direction, within the multicast tracker TVLV.
+ *
+ * Return: The number of consecutive zero MAC address destinations which are
+ * now at the end of the multicast tracker TVLV.
+ */
+static int batadv_mcast_forw_shrink_pack_dests(struct sk_buff *skb)
+{
+ struct batadv_tvlv_mcast_tracker *mcast_tracker;
+ unsigned char *skb_net_hdr;
+ u16 num_dests_slot;
+ u8 *slot;
+
+ skb_net_hdr = skb_network_header(skb);
+ mcast_tracker = (struct batadv_tvlv_mcast_tracker *)skb_net_hdr;
+ num_dests_slot = ntohs(mcast_tracker->num_dests);
+
+ slot = (u8 *)mcast_tracker + sizeof(*mcast_tracker);
+
+ batadv_mcast_forw_tracker_for_each_dest(slot, num_dests_slot) {
+ /* find an empty slot */
+ if (!is_zero_ether_addr(slot))
+ continue;
+
+ if (!batadv_mcast_forw_shrink_fill(slot, num_dests_slot))
+ /* could not find a filler, so we successfully packed
+ * and can stop - and must not reduce num_dests_slot!
+ */
+ break;
+ }
+
+ /* num_dests_slot is now the amount of reduced, zeroed
+ * destinations at the end of the tracker TVLV
+ */
+ return num_dests_slot;
+}
+
+/**
+ * batadv_mcast_forw_shrink_align_offset() - get new alignment offset
+ * @num_dests_old: the old, to be updated amount of destination nodes
+ * @num_dests_reduce: the number of destinations that were removed
+ *
+ * Calculates the amount of potential extra alignment offset that is needed to
+ * adjust the TVLV padding after the change in destination nodes.
+ *
+ * Return:
+ * 0: If no change to padding is needed.
+ * 2: If padding needs to be removed.
+ * -2: If padding needs to be added.
+ */
+static short
+batadv_mcast_forw_shrink_align_offset(unsigned int num_dests_old,
+ unsigned int num_dests_reduce)
+{
+ /* even amount of removed destinations -> no alignment change */
+ if (!(num_dests_reduce % 2))
+ return 0;
+
+ /* even to odd amount of destinations -> remove padding */
+ if (!(num_dests_old % 2))
+ return 2;
+
+ /* odd to even amount of destinations -> add padding */
+ return -2;
+}
+
+/**
+ * batadv_mcast_forw_shrink_update_headers() - update shrunk mc packet headers
+ * @skb: the batman-adv multicast packet to update headers of
+ * @num_dests_reduce: the number of destinations that were removed
+ *
+ * This updates any fields of a batman-adv multicast packet that are affected
+ * by the reduced number of destinations in the multicast tracket TVLV. In
+ * particular this updates:
+ *
+ * The num_dest field of the multicast tracker TVLV.
+ * The TVLV length field of the according generic TVLV header.
+ * The batman-adv multicast packet's total TVLV length field.
+ *
+ * Return: The offset in skb's tail direction at which the new batman-adv
+ * multicast packet header needs to start.
+ */
+static unsigned int
+batadv_mcast_forw_shrink_update_headers(struct sk_buff *skb,
+ unsigned int num_dests_reduce)
+{
+ struct batadv_tvlv_mcast_tracker *mcast_tracker;
+ struct batadv_mcast_packet *mcast_packet;
+ struct batadv_tvlv_hdr *tvlv_hdr;
+ unsigned char *skb_net_hdr;
+ unsigned int offset;
+ short align_offset;
+ u16 num_dests;
+
+ skb_net_hdr = skb_network_header(skb);
+ mcast_tracker = (struct batadv_tvlv_mcast_tracker *)skb_net_hdr;
+ num_dests = ntohs(mcast_tracker->num_dests);
+
+ align_offset = batadv_mcast_forw_shrink_align_offset(num_dests,
+ num_dests_reduce);
+ offset = ETH_ALEN * num_dests_reduce + align_offset;
+ num_dests -= num_dests_reduce;
+
+ /* update tracker header */
+ mcast_tracker->num_dests = htons(num_dests);
+
+ /* update tracker's tvlv header's length field */
+ tvlv_hdr = (struct batadv_tvlv_hdr *)(skb_network_header(skb) -
+ sizeof(*tvlv_hdr));
+ tvlv_hdr->len = htons(ntohs(tvlv_hdr->len) - offset);
+
+ /* update multicast packet header's tvlv length field */
+ mcast_packet = (struct batadv_mcast_packet *)skb->data;
+ mcast_packet->tvlv_len = htons(ntohs(mcast_packet->tvlv_len) - offset);
+
+ return offset;
+}
+
+/**
+ * batadv_mcast_forw_shrink_move_headers() - move multicast headers by offset
+ * @skb: the batman-adv multicast packet to move headers for
+ * @offset: a non-negative offset to move headers by, towards the skb tail
+ *
+ * Moves the batman-adv multicast packet header, its multicast tracker TVLV and
+ * any TVLVs in between by the given offset in direction towards the tail.
+ */
+static void
+batadv_mcast_forw_shrink_move_headers(struct sk_buff *skb, unsigned int offset)
+{
+ struct batadv_tvlv_mcast_tracker *mcast_tracker;
+ unsigned char *skb_net_hdr;
+ unsigned int len;
+ u16 num_dests;
+
+ skb_net_hdr = skb_network_header(skb);
+ mcast_tracker = (struct batadv_tvlv_mcast_tracker *)skb_net_hdr;
+ num_dests = ntohs(mcast_tracker->num_dests);
+ len = skb_network_offset(skb) + sizeof(*mcast_tracker);
+ len += num_dests * ETH_ALEN;
+
+ batadv_mcast_forw_scrape(skb, len, offset);
+}
+
+/**
+ * batadv_mcast_forw_shrink_tracker() - remove zero addresses in a tracker tvlv
+ * @skb: the batman-adv multicast packet to (potentially) shrink
+ *
+ * Removes all destinations with a zero MAC addresses (00:00:00:00:00:00) from
+ * the given batman-adv multicast packet's tracker TVLV and updates headers
+ * accordingly to maintain a valid batman-adv multicast packet.
+ */
+static void batadv_mcast_forw_shrink_tracker(struct sk_buff *skb)
+{
+ unsigned int offset;
+ u16 dests_reduced;
+
+ dests_reduced = batadv_mcast_forw_shrink_pack_dests(skb);
+ if (!dests_reduced)
+ return;
+
+ offset = batadv_mcast_forw_shrink_update_headers(skb, dests_reduced);
+ batadv_mcast_forw_shrink_move_headers(skb, offset);
+}
+
/**
* batadv_mcast_forw_packet() - forward a batman-adv multicast packet
* @bat_priv: the bat priv with all the soft interface information
@@ -787,6 +993,7 @@ static int batadv_mcast_forw_packet(struct batadv_priv *bat_priv,
batadv_mcast_forw_scrub_dests(bat_priv, neigh_node, dest,
next_dest, num_dests);
+ batadv_mcast_forw_shrink_tracker(nexthop_skb);
batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_TX);
batadv_add_counter(bat_priv, BATADV_CNT_MCAST_TX_BYTES,
--
linux integration
1
0
[linux-merge]linux integration; branch, batadv/net-next, updated. v6.6-rc1-4-g7c72a44efd53
by postmasterï¼ open-mesh.org 24 Sep '23
by postmasterï¼ open-mesh.org 24 Sep '23
24 Sep '23
The following commit has been merged in the batadv/net-next branch:
commit 35083238e54e072f059256328fe794fe7b133060
Author: Linus Lüssing <linus.luessing(a)c0d3.blue>
Date: Thu Sep 7 03:09:08 2023 +0200
batman-adv: mcast: implement multicast packet reception and forwarding
Implement functionality to receive and forward a new TVLV capable
multicast packet type.
The new batman-adv multicast packet type allows to contain several
originator destination addresses within a TVLV. Routers on the way will
potentially split the batman-adv multicast packet and adjust its tracker
TVLV contents.
Routing decisions are still based on the selected BATMAN IV or BATMAN V
routing algorithm. So this new batman-adv multicast packet type retains
the same loop-free properties.
Also a new OGM multicast TVLV flag is introduced to signal to other
nodes that we are capable of handling a batman-adv multicast packet and
multicast tracker TVLV. And that all of our hard interfaces have an MTU
of at least 1280 bytes (IPv6 minimum MTU), as a simple solution for now
to avoid MTU issues while forwarding.
Signed-off-by: Linus Lüssing <linus.luessing(a)c0d3.blue>
Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de>
diff --git a/include/uapi/linux/batadv_packet.h b/include/uapi/linux/batadv_packet.h
index 9204e4494b25..6e25753015df 100644
--- a/include/uapi/linux/batadv_packet.h
+++ b/include/uapi/linux/batadv_packet.h
@@ -116,6 +116,9 @@ enum batadv_icmp_packettype {
* only need routable IPv4 multicast packets we signed up for explicitly
* @BATADV_MCAST_WANT_NO_RTR6: we have no IPv6 multicast router and therefore
* only need routable IPv6 multicast packets we signed up for explicitly
+ * @BATADV_MCAST_HAVE_MC_PTYPE_CAPA: we can parse, receive and forward
+ * batman-adv multicast packets with a multicast tracker TVLV. And all our
+ * hard interfaces have an MTU of at least 1280 bytes.
*/
enum batadv_mcast_flags {
BATADV_MCAST_WANT_ALL_UNSNOOPABLES = 1UL << 0,
@@ -123,6 +126,7 @@ enum batadv_mcast_flags {
BATADV_MCAST_WANT_ALL_IPV6 = 1UL << 2,
BATADV_MCAST_WANT_NO_RTR4 = 1UL << 3,
BATADV_MCAST_WANT_NO_RTR6 = 1UL << 4,
+ BATADV_MCAST_HAVE_MC_PTYPE_CAPA = 1UL << 5,
};
/* tt data subtypes */
@@ -174,14 +178,16 @@ enum batadv_bla_claimframe {
* @BATADV_TVLV_TT: translation table tvlv
* @BATADV_TVLV_ROAM: roaming advertisement tvlv
* @BATADV_TVLV_MCAST: multicast capability tvlv
+ * @BATADV_TVLV_MCAST_TRACKER: multicast tracker tvlv
*/
enum batadv_tvlv_type {
- BATADV_TVLV_GW = 0x01,
- BATADV_TVLV_DAT = 0x02,
- BATADV_TVLV_NC = 0x03,
- BATADV_TVLV_TT = 0x04,
- BATADV_TVLV_ROAM = 0x05,
- BATADV_TVLV_MCAST = 0x06,
+ BATADV_TVLV_GW = 0x01,
+ BATADV_TVLV_DAT = 0x02,
+ BATADV_TVLV_NC = 0x03,
+ BATADV_TVLV_TT = 0x04,
+ BATADV_TVLV_ROAM = 0x05,
+ BATADV_TVLV_MCAST = 0x06,
+ BATADV_TVLV_MCAST_TRACKER = 0x07,
};
#pragma pack(2)
@@ -487,6 +493,25 @@ struct batadv_bcast_packet {
*/
};
+/**
+ * struct batadv_mcast_packet - multicast packet for network payload
+ * @packet_type: batman-adv packet type, part of the general header
+ * @version: batman-adv protocol version, part of the general header
+ * @ttl: time to live for this packet, part of the general header
+ * @reserved: reserved byte for alignment
+ * @tvlv_len: length of the appended tvlv buffer (in bytes)
+ */
+struct batadv_mcast_packet {
+ __u8 packet_type;
+ __u8 version;
+ __u8 ttl;
+ __u8 reserved;
+ __be16 tvlv_len;
+ /* "4 bytes boundary + 2 bytes" long to make the payload after the
+ * following ethernet header again 4 bytes boundary aligned
+ */
+};
+
/**
* struct batadv_coded_packet - network coded packet
* @packet_type: batman-adv packet type, part of the general header
@@ -628,6 +653,14 @@ struct batadv_tvlv_mcast_data {
__u8 reserved[3];
};
+/**
+ * struct batadv_tvlv_mcast_tracker - payload of a multicast tracker tvlv
+ * @num_dests: number of subsequent destination originator MAC addresses
+ */
+struct batadv_tvlv_mcast_tracker {
+ __be16 num_dests;
+};
+
#pragma pack()
#endif /* _UAPI_LINUX_BATADV_PACKET_H_ */
diff --git a/net/batman-adv/Makefile b/net/batman-adv/Makefile
index 3bd0760c76a2..b51d8b071b56 100644
--- a/net/batman-adv/Makefile
+++ b/net/batman-adv/Makefile
@@ -20,6 +20,7 @@ batman-adv-y += hash.o
batman-adv-$(CONFIG_BATMAN_ADV_DEBUG) += log.o
batman-adv-y += main.o
batman-adv-$(CONFIG_BATMAN_ADV_MCAST) += multicast.o
+batman-adv-$(CONFIG_BATMAN_ADV_MCAST) += multicast_forw.o
batman-adv-y += netlink.o
batman-adv-$(CONFIG_BATMAN_ADV_NC) += network-coding.o
batman-adv-y += originator.o
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
index c120c7c6d25f..d35938c03cf5 100644
--- a/net/batman-adv/fragmentation.c
+++ b/net/batman-adv/fragmentation.c
@@ -351,18 +351,14 @@ bool batadv_frag_skb_fwd(struct sk_buff *skb,
struct batadv_orig_node *orig_node_src)
{
struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
- struct batadv_orig_node *orig_node_dst;
struct batadv_neigh_node *neigh_node = NULL;
struct batadv_frag_packet *packet;
u16 total_size;
bool ret = false;
packet = (struct batadv_frag_packet *)skb->data;
- orig_node_dst = batadv_orig_hash_find(bat_priv, packet->dest);
- if (!orig_node_dst)
- goto out;
- neigh_node = batadv_find_router(bat_priv, orig_node_dst, recv_if);
+ neigh_node = batadv_orig_to_router(bat_priv, packet->dest, recv_if);
if (!neigh_node)
goto out;
@@ -381,7 +377,6 @@ bool batadv_frag_skb_fwd(struct sk_buff *skb,
}
out:
- batadv_orig_node_put(orig_node_dst);
batadv_neigh_node_put(neigh_node);
return ret;
}
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index e8a449915566..50b2bf2b748c 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -532,6 +532,8 @@ static void batadv_recv_handler_init(void)
/* broadcast packet */
batadv_rx_handler[BATADV_BCAST] = batadv_recv_bcast_packet;
+ /* multicast packet */
+ batadv_rx_handler[BATADV_MCAST] = batadv_recv_mcast_packet;
/* unicast packets ... */
/* unicast with 4 addresses packet */
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index 315394f12c55..dfc2c645b13f 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -235,6 +235,37 @@ static u8 batadv_mcast_mla_rtr_flags_get(struct batadv_priv *bat_priv,
return flags;
}
+/**
+ * batadv_mcast_mla_forw_flags_get() - get multicast forwarding flags
+ * @bat_priv: the bat priv with all the soft interface information
+ *
+ * Checks if all active hard interfaces have an MTU larger or equal to 1280
+ * bytes (IPv6 minimum MTU).
+ *
+ * Return: BATADV_MCAST_HAVE_MC_PTYPE_CAPA if yes, BATADV_NO_FLAGS otherwise.
+ */
+static u8 batadv_mcast_mla_forw_flags_get(struct batadv_priv *bat_priv)
+{
+ const struct batadv_hard_iface *hard_iface;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
+ if (hard_iface->if_status != BATADV_IF_ACTIVE)
+ continue;
+
+ if (hard_iface->soft_iface != bat_priv->soft_iface)
+ continue;
+
+ if (hard_iface->net_dev->mtu < IPV6_MIN_MTU) {
+ rcu_read_unlock();
+ return BATADV_NO_FLAGS;
+ }
+ }
+ rcu_read_unlock();
+
+ return BATADV_MCAST_HAVE_MC_PTYPE_CAPA;
+}
+
/**
* batadv_mcast_mla_flags_get() - get the new multicast flags
* @bat_priv: the bat priv with all the soft interface information
@@ -256,6 +287,7 @@ batadv_mcast_mla_flags_get(struct batadv_priv *bat_priv)
mla_flags.enabled = 1;
mla_flags.tvlv_flags |= batadv_mcast_mla_rtr_flags_get(bat_priv,
bridge);
+ mla_flags.tvlv_flags |= batadv_mcast_mla_forw_flags_get(bat_priv);
if (!bridge)
return mla_flags;
@@ -806,23 +838,25 @@ static void batadv_mcast_flags_log(struct batadv_priv *bat_priv, u8 flags)
{
bool old_enabled = bat_priv->mcast.mla_flags.enabled;
u8 old_flags = bat_priv->mcast.mla_flags.tvlv_flags;
- char str_old_flags[] = "[.... . ]";
+ char str_old_flags[] = "[.... . .]";
- sprintf(str_old_flags, "[%c%c%c%s%s]",
+ sprintf(str_old_flags, "[%c%c%c%s%s%c]",
(old_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES) ? 'U' : '.',
(old_flags & BATADV_MCAST_WANT_ALL_IPV4) ? '4' : '.',
(old_flags & BATADV_MCAST_WANT_ALL_IPV6) ? '6' : '.',
!(old_flags & BATADV_MCAST_WANT_NO_RTR4) ? "R4" : ". ",
- !(old_flags & BATADV_MCAST_WANT_NO_RTR6) ? "R6" : ". ");
+ !(old_flags & BATADV_MCAST_WANT_NO_RTR6) ? "R6" : ". ",
+ !(old_flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA) ? 'P' : '.');
batadv_dbg(BATADV_DBG_MCAST, bat_priv,
- "Changing multicast flags from '%s' to '[%c%c%c%s%s]'\n",
+ "Changing multicast flags from '%s' to '[%c%c%c%s%s%c]'\n",
old_enabled ? str_old_flags : "<undefined>",
(flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES) ? 'U' : '.',
(flags & BATADV_MCAST_WANT_ALL_IPV4) ? '4' : '.',
(flags & BATADV_MCAST_WANT_ALL_IPV6) ? '6' : '.',
!(flags & BATADV_MCAST_WANT_NO_RTR4) ? "R4" : ". ",
- !(flags & BATADV_MCAST_WANT_NO_RTR6) ? "R6" : ". ");
+ !(flags & BATADV_MCAST_WANT_NO_RTR6) ? "R6" : ". ",
+ !(flags & BATADV_MCAST_HAVE_MC_PTYPE_CAPA) ? 'P' : '.');
}
/**
@@ -1820,6 +1854,10 @@ void batadv_mcast_init(struct batadv_priv *bat_priv)
batadv_tvlv_handler_register(bat_priv, batadv_mcast_tvlv_ogm_handler,
NULL, NULL, BATADV_TVLV_MCAST, 2,
BATADV_TVLV_HANDLER_OGM_CIFNOTFND);
+ batadv_tvlv_handler_register(bat_priv, NULL, NULL,
+ batadv_mcast_forw_tracker_tvlv_handler,
+ BATADV_TVLV_MCAST_TRACKER, 1,
+ BATADV_TVLV_HANDLER_OGM_CIFNOTFND);
INIT_DELAYED_WORK(&bat_priv->mcast.work, batadv_mcast_mla_update);
batadv_mcast_start_timer(bat_priv);
diff --git a/net/batman-adv/multicast.h b/net/batman-adv/multicast.h
index a9770d8d6d36..a5c0f384bb9a 100644
--- a/net/batman-adv/multicast.h
+++ b/net/batman-adv/multicast.h
@@ -52,6 +52,11 @@ void batadv_mcast_free(struct batadv_priv *bat_priv);
void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node);
+/* multicast_forw.c */
+
+int batadv_mcast_forw_tracker_tvlv_handler(struct batadv_priv *bat_priv,
+ struct sk_buff *skb);
+
#else
static inline enum batadv_forw_mode
diff --git a/net/batman-adv/multicast_forw.c b/net/batman-adv/multicast_forw.c
new file mode 100644
index 000000000000..4382682e198b
--- /dev/null
+++ b/net/batman-adv/multicast_forw.c
@@ -0,0 +1,240 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) B.A.T.M.A.N. contributors:
+ *
+ * Linus Lüssing
+ */
+
+#include "multicast.h"
+#include "main.h"
+
+#include <linux/byteorder/generic.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/gfp.h>
+#include <linux/if_ether.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <uapi/linux/batadv_packet.h>
+
+#include "originator.h"
+#include "routing.h"
+#include "send.h"
+
+#define batadv_mcast_forw_tracker_for_each_dest(dest, num_dests) \
+ for (; num_dests; num_dests--, (dest) += ETH_ALEN)
+
+#define batadv_mcast_forw_tracker_for_each_dest2(dest1, dest2, num_dests) \
+ for (; num_dests; num_dests--, (dest1) += ETH_ALEN, (dest2) += ETH_ALEN)
+
+/**
+ * batadv_mcast_forw_scrub_dests() - scrub destinations in a tracker TVLV
+ * @bat_priv: the bat priv with all the soft interface information
+ * @comp_neigh: next hop neighbor to scrub+collect destinations for
+ * @dest: start MAC entry in original skb's tracker TVLV
+ * @next_dest: start MAC entry in to be sent skb's tracker TVLV
+ * @num_dests: number of remaining destination MAC entries to iterate over
+ *
+ * This sorts destination entries into either the original batman-adv
+ * multicast packet or the skb (copy) that is going to be sent to comp_neigh
+ * next.
+ *
+ * In preparation for the next, to be (unicast) transmitted batman-adv multicast
+ * packet skb to be sent to the given neighbor node, tries to collect all
+ * originator MAC addresses that have the given neighbor node as their next hop
+ * in the to be transmitted skb (copy), which next_dest points into. That is we
+ * zero all destination entries in next_dest which do not have comp_neigh as
+ * their next hop. And zero all destination entries in the original skb that
+ * would have comp_neigh as their next hop (to avoid redundant transmissions and
+ * duplicated payload later).
+ */
+static void
+batadv_mcast_forw_scrub_dests(struct batadv_priv *bat_priv,
+ struct batadv_neigh_node *comp_neigh, u8 *dest,
+ u8 *next_dest, u16 num_dests)
+{
+ struct batadv_neigh_node *next_neigh;
+
+ /* skip first entry, this is what we are comparing with */
+ eth_zero_addr(dest);
+ dest += ETH_ALEN;
+ next_dest += ETH_ALEN;
+ num_dests--;
+
+ batadv_mcast_forw_tracker_for_each_dest2(dest, next_dest, num_dests) {
+ if (is_zero_ether_addr(next_dest))
+ continue;
+
+ /* sanity check, we expect unicast destinations */
+ if (is_multicast_ether_addr(next_dest)) {
+ eth_zero_addr(dest);
+ eth_zero_addr(next_dest);
+ continue;
+ }
+
+ next_neigh = batadv_orig_to_router(bat_priv, next_dest, NULL);
+ if (!next_neigh) {
+ eth_zero_addr(next_dest);
+ continue;
+ }
+
+ if (!batadv_compare_eth(next_neigh->addr, comp_neigh->addr)) {
+ eth_zero_addr(next_dest);
+ batadv_neigh_node_put(next_neigh);
+ continue;
+ }
+
+ /* found an entry for our next packet to transmit, so remove it
+ * from the original packet
+ */
+ eth_zero_addr(dest);
+ batadv_neigh_node_put(next_neigh);
+ }
+}
+
+/**
+ * batadv_mcast_forw_packet() - forward a batman-adv multicast packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the received or locally generated batman-adv multicast packet
+ * @local_xmit: indicates that the packet was locally generated and not received
+ *
+ * Parses the tracker TVLV of a batman-adv multicast packet and forwards the
+ * packet as indicated in this TVLV.
+ *
+ * Caller needs to set the skb network header to the start of the multicast
+ * tracker TVLV (excluding the generic TVLV header) and the skb transport header
+ * to the next byte after this multicast tracker TVLV.
+ *
+ * Caller needs to free the skb.
+ *
+ * Return: NET_RX_SUCCESS or NET_RX_DROP on success or a negative error
+ * code on failure. NET_RX_SUCCESS if the received packet is supposed to be
+ * decapsulated and forwarded to the own soft interface, NET_RX_DROP otherwise.
+ */
+static int batadv_mcast_forw_packet(struct batadv_priv *bat_priv,
+ struct sk_buff *skb, bool local_xmit)
+{
+ struct batadv_tvlv_mcast_tracker *mcast_tracker;
+ struct batadv_neigh_node *neigh_node;
+ unsigned long offset, num_dests_off;
+ struct sk_buff *nexthop_skb;
+ unsigned char *skb_net_hdr;
+ bool local_recv = false;
+ unsigned int tvlv_len;
+ bool xmitted = false;
+ u8 *dest, *next_dest;
+ u16 num_dests;
+ int ret;
+
+ /* (at least) TVLV part needs to be linearized */
+ SKB_LINEAR_ASSERT(skb);
+
+ /* check if num_dests is within skb length */
+ num_dests_off = offsetof(struct batadv_tvlv_mcast_tracker, num_dests);
+ if (num_dests_off > skb_network_header_len(skb))
+ return -EINVAL;
+
+ skb_net_hdr = skb_network_header(skb);
+ mcast_tracker = (struct batadv_tvlv_mcast_tracker *)skb_net_hdr;
+ num_dests = ntohs(mcast_tracker->num_dests);
+
+ dest = (u8 *)mcast_tracker + sizeof(*mcast_tracker);
+
+ /* check if full tracker tvlv is within skb length */
+ tvlv_len = sizeof(*mcast_tracker) + ETH_ALEN * num_dests;
+ if (tvlv_len > skb_network_header_len(skb))
+ return -EINVAL;
+
+ /* invalidate checksum: */
+ skb->ip_summed = CHECKSUM_NONE;
+
+ batadv_mcast_forw_tracker_for_each_dest(dest, num_dests) {
+ if (is_zero_ether_addr(dest))
+ continue;
+
+ /* only unicast originator addresses supported */
+ if (is_multicast_ether_addr(dest)) {
+ eth_zero_addr(dest);
+ continue;
+ }
+
+ if (batadv_is_my_mac(bat_priv, dest)) {
+ eth_zero_addr(dest);
+ local_recv = true;
+ continue;
+ }
+
+ neigh_node = batadv_orig_to_router(bat_priv, dest, NULL);
+ if (!neigh_node) {
+ eth_zero_addr(dest);
+ continue;
+ }
+
+ nexthop_skb = skb_copy(skb, GFP_ATOMIC);
+ if (!nexthop_skb) {
+ batadv_neigh_node_put(neigh_node);
+ return -ENOMEM;
+ }
+
+ offset = dest - skb->data;
+ next_dest = nexthop_skb->data + offset;
+
+ batadv_mcast_forw_scrub_dests(bat_priv, neigh_node, dest,
+ next_dest, num_dests);
+
+ batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_TX);
+ batadv_add_counter(bat_priv, BATADV_CNT_MCAST_TX_BYTES,
+ nexthop_skb->len + ETH_HLEN);
+ xmitted = true;
+ ret = batadv_send_unicast_skb(nexthop_skb, neigh_node);
+
+ batadv_neigh_node_put(neigh_node);
+
+ if (ret < 0)
+ return ret;
+ }
+
+ if (xmitted) {
+ if (local_xmit) {
+ batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_TX_LOCAL);
+ batadv_add_counter(bat_priv,
+ BATADV_CNT_MCAST_TX_LOCAL_BYTES,
+ skb->len -
+ skb_transport_offset(skb));
+ } else {
+ batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_FWD);
+ batadv_add_counter(bat_priv, BATADV_CNT_MCAST_FWD_BYTES,
+ skb->len + ETH_HLEN);
+ }
+ }
+
+ if (local_recv)
+ return NET_RX_SUCCESS;
+ else
+ return NET_RX_DROP;
+}
+
+/**
+ * batadv_mcast_forw_tracker_tvlv_handler() - handle an mcast tracker tvlv
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the received batman-adv multicast packet
+ *
+ * Parses the tracker TVLV of an incoming batman-adv multicast packet and
+ * forwards the packet as indicated in this TVLV.
+ *
+ * Caller needs to set the skb network header to the start of the multicast
+ * tracker TVLV (excluding the generic TVLV header) and the skb transport header
+ * to the next byte after this multicast tracker TVLV.
+ *
+ * Caller needs to free the skb.
+ *
+ * Return: NET_RX_SUCCESS or NET_RX_DROP on success or a negative error
+ * code on failure. NET_RX_SUCCESS if the received packet is supposed to be
+ * decapsulated and forwarded to the own soft interface, NET_RX_DROP otherwise.
+ */
+int batadv_mcast_forw_tracker_tvlv_handler(struct batadv_priv *bat_priv,
+ struct sk_buff *skb)
+{
+ return batadv_mcast_forw_packet(bat_priv, skb, false);
+}
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 34903df4fe93..71c143d4b6d0 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -311,6 +311,33 @@ batadv_orig_router_get(struct batadv_orig_node *orig_node,
return router;
}
+/**
+ * batadv_orig_to_router() - get next hop neighbor to an orig address
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_addr: the originator MAC address to search the best next hop router for
+ * @if_outgoing: the interface where the payload packet has been received or
+ * the OGM should be sent to
+ *
+ * Return: A neighbor node which is the best router towards the given originator
+ * address.
+ */
+struct batadv_neigh_node *
+batadv_orig_to_router(struct batadv_priv *bat_priv, u8 *orig_addr,
+ struct batadv_hard_iface *if_outgoing)
+{
+ struct batadv_neigh_node *neigh_node;
+ struct batadv_orig_node *orig_node;
+
+ orig_node = batadv_orig_hash_find(bat_priv, orig_addr);
+ if (!orig_node)
+ return NULL;
+
+ neigh_node = batadv_find_router(bat_priv, orig_node, if_outgoing);
+ batadv_orig_node_put(orig_node);
+
+ return neigh_node;
+}
+
/**
* batadv_orig_ifinfo_get() - find the ifinfo from an orig_node
* @orig_node: the orig node to be queried
@@ -942,6 +969,7 @@ struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv,
#ifdef CONFIG_BATMAN_ADV_MCAST
orig_node->mcast_flags = BATADV_MCAST_WANT_NO_RTR4;
orig_node->mcast_flags |= BATADV_MCAST_WANT_NO_RTR6;
+ orig_node->mcast_flags |= BATADV_MCAST_HAVE_MC_PTYPE_CAPA;
INIT_HLIST_NODE(&orig_node->mcast_want_all_unsnoopables_node);
INIT_HLIST_NODE(&orig_node->mcast_want_all_ipv4_node);
INIT_HLIST_NODE(&orig_node->mcast_want_all_ipv6_node);
diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h
index ea3d69e4e670..db0c55128170 100644
--- a/net/batman-adv/originator.h
+++ b/net/batman-adv/originator.h
@@ -36,6 +36,9 @@ void batadv_neigh_node_release(struct kref *ref);
struct batadv_neigh_node *
batadv_orig_router_get(struct batadv_orig_node *orig_node,
const struct batadv_hard_iface *if_outgoing);
+struct batadv_neigh_node *
+batadv_orig_to_router(struct batadv_priv *bat_priv, u8 *orig_addr,
+ struct batadv_hard_iface *if_outgoing);
struct batadv_neigh_ifinfo *
batadv_neigh_ifinfo_new(struct batadv_neigh_node *neigh,
struct batadv_hard_iface *if_outgoing);
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 163cd43c4821..f1061985149f 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -1270,3 +1270,73 @@ out:
batadv_orig_node_put(orig_node);
return ret;
}
+
+#ifdef CONFIG_BATMAN_ADV_MCAST
+/**
+ * batadv_recv_mcast_packet() - process received batman-adv multicast packet
+ * @skb: the received batman-adv multicast packet
+ * @recv_if: interface that the skb is received on
+ *
+ * Parses the given, received batman-adv multicast packet. Depending on the
+ * contents of its TVLV forwards it and/or decapsulates it to hand it to the
+ * soft interface.
+ *
+ * Return: NET_RX_DROP if the skb is not consumed, NET_RX_SUCCESS otherwise.
+ */
+int batadv_recv_mcast_packet(struct sk_buff *skb,
+ struct batadv_hard_iface *recv_if)
+{
+ struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
+ struct batadv_mcast_packet *mcast_packet;
+ int hdr_size = sizeof(*mcast_packet);
+ unsigned char *tvlv_buff;
+ int ret = NET_RX_DROP;
+ u16 tvlv_buff_len;
+
+ if (batadv_check_unicast_packet(bat_priv, skb, hdr_size) < 0)
+ goto free_skb;
+
+ /* create a copy of the skb, if needed, to modify it. */
+ if (skb_cow(skb, ETH_HLEN) < 0)
+ goto free_skb;
+
+ /* packet needs to be linearized to access the tvlv content */
+ if (skb_linearize(skb) < 0)
+ goto free_skb;
+
+ mcast_packet = (struct batadv_mcast_packet *)skb->data;
+ if (mcast_packet->ttl-- < 2)
+ goto free_skb;
+
+ tvlv_buff = (unsigned char *)(skb->data + hdr_size);
+ tvlv_buff_len = ntohs(mcast_packet->tvlv_len);
+
+ if (tvlv_buff_len > skb->len - hdr_size)
+ goto free_skb;
+
+ ret = batadv_tvlv_containers_process(bat_priv, BATADV_MCAST, NULL, skb,
+ tvlv_buff, tvlv_buff_len);
+ if (ret >= 0) {
+ batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_RX);
+ batadv_add_counter(bat_priv, BATADV_CNT_MCAST_RX_BYTES,
+ skb->len + ETH_HLEN);
+ }
+
+ hdr_size += tvlv_buff_len;
+
+ if (ret == NET_RX_SUCCESS && (skb->len - hdr_size >= ETH_HLEN)) {
+ batadv_inc_counter(bat_priv, BATADV_CNT_MCAST_RX_LOCAL);
+ batadv_add_counter(bat_priv, BATADV_CNT_MCAST_RX_LOCAL_BYTES,
+ skb->len - hdr_size);
+
+ batadv_interface_rx(bat_priv->soft_iface, skb, hdr_size, NULL);
+ /* skb was consumed */
+ skb = NULL;
+ }
+
+free_skb:
+ kfree_skb(skb);
+
+ return ret;
+}
+#endif /* CONFIG_BATMAN_ADV_MCAST */
diff --git a/net/batman-adv/routing.h b/net/batman-adv/routing.h
index afd15b3879f1..e9849f032a24 100644
--- a/net/batman-adv/routing.h
+++ b/net/batman-adv/routing.h
@@ -27,6 +27,17 @@ int batadv_recv_frag_packet(struct sk_buff *skb,
struct batadv_hard_iface *iface);
int batadv_recv_bcast_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if);
+#ifdef CONFIG_BATMAN_ADV_MCAST
+int batadv_recv_mcast_packet(struct sk_buff *skb,
+ struct batadv_hard_iface *recv_if);
+#else
+static inline int batadv_recv_mcast_packet(struct sk_buff *skb,
+ struct batadv_hard_iface *recv_if)
+{
+ kfree_skb(skb);
+ return NET_RX_DROP;
+}
+#endif
int batadv_recv_unicast_tvlv(struct sk_buff *skb,
struct batadv_hard_iface *recv_if);
int batadv_recv_unhandled_unicast_packet(struct sk_buff *skb,
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 1bf1232a4f75..1b0e2c59aef2 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -925,6 +925,18 @@ static const struct {
{ "tt_response_rx" },
{ "tt_roam_adv_tx" },
{ "tt_roam_adv_rx" },
+#ifdef CONFIG_BATMAN_ADV_MCAST
+ { "mcast_tx" },
+ { "mcast_tx_bytes" },
+ { "mcast_tx_local" },
+ { "mcast_tx_local_bytes" },
+ { "mcast_rx" },
+ { "mcast_rx_bytes" },
+ { "mcast_rx_local" },
+ { "mcast_rx_local_bytes" },
+ { "mcast_fwd" },
+ { "mcast_fwd_bytes" },
+#endif
#ifdef CONFIG_BATMAN_ADV_DAT
{ "dat_get_tx" },
{ "dat_get_rx" },
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 17d5ea1d8e84..850b184e5b04 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -862,6 +862,70 @@ enum batadv_counters {
*/
BATADV_CNT_TT_ROAM_ADV_RX,
+#ifdef CONFIG_BATMAN_ADV_MCAST
+ /**
+ * @BATADV_CNT_MCAST_TX: transmitted batman-adv multicast packets
+ * counter
+ */
+ BATADV_CNT_MCAST_TX,
+
+ /**
+ * @BATADV_CNT_MCAST_TX_BYTES: transmitted batman-adv multicast packets
+ * bytes counter
+ */
+ BATADV_CNT_MCAST_TX_BYTES,
+
+ /**
+ * @BATADV_CNT_MCAST_TX_LOCAL: counter for multicast packets which
+ * were locally encapsulated and transmitted as batman-adv multicast
+ * packets
+ */
+ BATADV_CNT_MCAST_TX_LOCAL,
+
+ /**
+ * @BATADV_CNT_MCAST_TX_LOCAL_BYTES: bytes counter for multicast packets
+ * which were locally encapsulated and transmitted as batman-adv
+ * multicast packets
+ */
+ BATADV_CNT_MCAST_TX_LOCAL_BYTES,
+
+ /**
+ * @BATADV_CNT_MCAST_RX: received batman-adv multicast packet counter
+ */
+ BATADV_CNT_MCAST_RX,
+
+ /**
+ * @BATADV_CNT_MCAST_RX_BYTES: received batman-adv multicast packet
+ * bytes counter
+ */
+ BATADV_CNT_MCAST_RX_BYTES,
+
+ /**
+ * @BATADV_CNT_MCAST_RX_LOCAL: counter for received batman-adv multicast
+ * packets which were forwarded to the local soft interface
+ */
+ BATADV_CNT_MCAST_RX_LOCAL,
+
+ /**
+ * @BATADV_CNT_MCAST_RX_LOCAL_BYTES: bytes counter for received
+ * batman-adv multicast packets which were forwarded to the local soft
+ * interface
+ */
+ BATADV_CNT_MCAST_RX_LOCAL_BYTES,
+
+ /**
+ * @BATADV_CNT_MCAST_FWD: counter for received batman-adv multicast
+ * packets which were forwarded to other, neighboring nodes
+ */
+ BATADV_CNT_MCAST_FWD,
+
+ /**
+ * @BATADV_CNT_MCAST_FWD_BYTES: bytes counter for received batman-adv
+ * multicast packets which were forwarded to other, neighboring nodes
+ */
+ BATADV_CNT_MCAST_FWD_BYTES,
+#endif
+
#ifdef CONFIG_BATMAN_ADV_DAT
/**
* @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter
--
linux integration
1
0
[linux-merge]linux integration; branch, batadv/net-next, updated. v6.6-rc1-4-g7c72a44efd53
by postmasterï¼ open-mesh.org 24 Sep '23
by postmasterï¼ open-mesh.org 24 Sep '23
24 Sep '23
The following commit has been merged in the batadv/net-next branch:
commit f05c4657540d031231f1e2a77832351479885ec1
Author: Simon Wunderlich <sw(a)simonwunderlich.de>
Date: Sun Sep 24 10:04:01 2023 +0200
batman-adv: Start new development cycle
This version will contain all the (major or even only minor) changes for
Linux 6.7.
The version number isn't a semantic version number with major and minor
information. It is just encoding the year of the expected publishing as
Linux -rc1 and the number of published versions this year (starting at 0).
Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de>
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 10007c5894a1..7c4e2bf0eb4c 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -13,7 +13,7 @@
#define BATADV_DRIVER_DEVICE "batman-adv"
#ifndef BATADV_SOURCE_VERSION
-#define BATADV_SOURCE_VERSION "2023.3"
+#define BATADV_SOURCE_VERSION "2023.4"
#endif
/* B.A.T.M.A.N. parameters */
--
linux integration
1
0
[linux-merge]linux integration; branch, batadv/net, updated. v6.6-rc1
by postmasterï¼ open-mesh.org 24 Sep '23
by postmasterï¼ open-mesh.org 24 Sep '23
24 Sep '23
The following commit has been merged in the batadv/net branch:
commit 57ce6427e00a6a72f74b29630b39548b36980b09
Merge: 9f6708a668186dc5b38532fc1d1ff2f5311722d6 b5cc3833f13ace75e26e3f7b51cd7b6da5e9cf17
Author: Jakub Kicinski <kuba(a)kernel.org>
Date: Thu Aug 24 10:46:29 2023 -0700
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
Conflicts:
include/net/inet_sock.h
f866fbc842de ("ipv4: fix data-races around inet->inet_id")
c274af224269 ("inet: introduce inet->inet_flags")
https://lore.kernel.org/all/679ddff6-db6e-4ff6-b177-574e90d0103d@tessares.n…
Adjacent changes:
drivers/net/bonding/bond_alb.c
e74216b8def3 ("bonding: fix macvlan over alb bond support")
f11e5bd159b0 ("bonding: support balance-alb with openvswitch")
drivers/net/ethernet/broadcom/bgmac.c
d6499f0b7c7c ("net: bgmac: Return PTR_ERR() for fixed_phy_register()")
23a14488ea58 ("net: bgmac: Fix return value check for fixed_phy_register()")
drivers/net/ethernet/broadcom/genet/bcmmii.c
32bbe64a1386 ("net: bcmgenet: Fix return value check for fixed_phy_register()")
acf50d1adbf4 ("net: bcmgenet: Return PTR_ERR() for fixed_phy_register()")
net/sctp/socket.c
f866fbc842de ("ipv4: fix data-races around inet->inet_id")
b09bde5c3554 ("inet: move inet->mc_loop to inet->inet_frags")
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
diff --combined MAINTAINERS
index 9cc15c50c2c6,48abe1a281f2..dfc2ba0c20f3
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@@ -3685,7 -3685,6 +3685,7 @@@ F: include/linux/filter.
F: include/linux/tnum.h
F: kernel/bpf/core.c
F: kernel/bpf/dispatcher.c
+F: kernel/bpf/mprog.c
F: kernel/bpf/syscall.c
F: kernel/bpf/tnum.c
F: kernel/bpf/trampoline.c
@@@ -3696,7 -3695,7 +3696,7 @@@ R: David Vernet <void(a)manifault.com
L: bpf(a)vger.kernel.org
L: bpf(a)ietf.org
S: Maintained
-F: Documentation/bpf/instruction-set.rst
+F: Documentation/bpf/standardization/
BPF [GENERAL] (Safe Dynamic Programs and Tools)
M: Alexei Starovoitov <ast(a)kernel.org>
@@@ -3704,7 -3703,7 +3704,7 @@@ M: Daniel Borkmann <daniel(a)iogearbox.ne
M: Andrii Nakryiko <andrii(a)kernel.org>
R: Martin KaFai Lau <martin.lau(a)linux.dev>
R: Song Liu <song(a)kernel.org>
-R: Yonghong Song <yhs(a)fb.com>
+R: Yonghong Song <yonghong.song(a)linux.dev>
R: John Fastabend <john.fastabend(a)gmail.com>
R: KP Singh <kpsingh(a)kernel.org>
R: Stanislav Fomichev <sdf(a)google.com>
@@@ -3743,7 -3742,7 +3743,7 @@@ F: tools/lib/bpf
F: tools/testing/selftests/bpf/
BPF [ITERATOR]
-M: Yonghong Song <yhs(a)fb.com>
+M: Yonghong Song <yonghong.song(a)linux.dev>
L: bpf(a)vger.kernel.org
S: Maintained
F: kernel/bpf/*iter.c
@@@ -3779,15 -3778,13 +3779,15 @@@ L: netdev(a)vger.kernel.or
S: Maintained
F: kernel/bpf/bpf_struct*
-BPF [NETWORKING] (tc BPF, sock_addr)
+BPF [NETWORKING] (tcx & tc BPF, sock_addr)
M: Martin KaFai Lau <martin.lau(a)linux.dev>
M: Daniel Borkmann <daniel(a)iogearbox.net>
R: John Fastabend <john.fastabend(a)gmail.com>
L: bpf(a)vger.kernel.org
L: netdev(a)vger.kernel.org
S: Maintained
+F: include/net/tcx.h
+F: kernel/bpf/tcx.c
F: net/core/filter.c
F: net/sched/act_bpf.c
F: net/sched/cls_bpf.c
@@@ -3839,15 -3836,6 +3839,15 @@@ S: Maintaine
F: kernel/bpf/stackmap.c
F: kernel/trace/bpf_trace.c
+BROADCOM ASP 2.0 ETHERNET DRIVER
+M: Justin Chen <justin.chen(a)broadcom.com>
+M: Florian Fainelli <florian.fainelli(a)broadcom.com>
+L: bcm-kernel-feedback-list(a)broadcom.com
+L: netdev(a)vger.kernel.org
+S: Supported
+F: Documentation/devicetree/bindings/net/brcm,asp-v2.0.yaml
+F: drivers/net/ethernet/broadcom/asp2/
+
BROADCOM B44 10/100 ETHERNET DRIVER
M: Michael Chan <michael.chan(a)broadcom.com>
L: netdev(a)vger.kernel.org
@@@ -7605,13 -7593,6 +7605,13 @@@ L: linux-mmc(a)vger.kernel.or
S: Supported
F: drivers/mmc/host/cqhci*
+EMS CPC-PCI CAN DRIVER
+M: Gerhard Uttenthaler <uttenthaler(a)ems-wuensche.com>
+M: support(a)ems-wuensche.com
+L: linux-can(a)vger.kernel.org
+S: Maintained
+F: drivers/net/can/sja1000/ems_pci.c
+
EMULEX 10Gbps iSCSI - OneConnect DRIVER
M: Ketan Mukadam <ketan.mukadam(a)broadcom.com>
L: linux-scsi(a)vger.kernel.org
@@@ -7751,7 -7732,6 +7751,7 @@@ F: include/linux/mii.
F: include/linux/of_net.h
F: include/linux/phy.h
F: include/linux/phy_fixed.h
+F: include/linux/phylib_stubs.h
F: include/linux/platform_data/mdio-bcm-unimac.h
F: include/linux/platform_data/mdio-gpio.h
F: include/trace/events/mdio.h
@@@ -8371,6 -8351,7 +8371,6 @@@ L: linuxppc-dev(a)lists.ozlabs.or
L: netdev(a)vger.kernel.org
S: Maintained
F: drivers/net/ethernet/freescale/fs_enet/
-F: include/linux/fs_enet_pd.h
FREESCALE SOC SOUND DRIVERS
M: Shengjiu Wang <shengjiu.wang(a)gmail.com>
@@@ -8831,6 -8812,7 +8831,7 @@@ R: Michael Walle <michael(a)walle.cc
S: Maintained
F: drivers/gpio/gpio-regmap.c
F: include/linux/gpio/regmap.h
+ K: (devm_)?gpio_regmap_(un)?register
GPIO SUBSYSTEM
M: Linus Walleij <linus.walleij(a)linaro.org>
@@@ -14658,7 -14640,7 +14659,7 @@@ F: drivers/rtc/rtc-ntxec.
F: include/linux/mfd/ntxec.h
NETRONOME ETHERNET DRIVERS
-M: Simon Horman <simon.horman(a)corigine.com>
+M: Louis Peens <louis.peens(a)corigine.com>
R: Jakub Kicinski <kuba(a)kernel.org>
L: oss-drivers(a)corigine.com
S: Maintained
@@@ -14821,6 -14803,16 +14822,16 @@@ F: net/netfilter/xt_CONNSECMARK.
F: net/netfilter/xt_SECMARK.c
F: net/netlabel/
+ NETWORKING [MACSEC]
+ M: Sabrina Dubroca <sd(a)queasysnail.net>
+ L: netdev(a)vger.kernel.org
+ S: Maintained
+ F: drivers/net/macsec.c
+ F: include/net/macsec.h
+ F: include/uapi/linux/if_macsec.h
+ K: macsec
+ K: \bmdo_
+
NETWORKING [MPTCP]
M: Matthieu Baerts <matthieu.baerts(a)tessares.net>
M: Mat Martineau <martineau(a)kernel.org>
@@@ -16020,7 -16012,7 +16031,7 @@@ M: Ilias Apalodimas <ilias.apalodimas@l
L: netdev(a)vger.kernel.org
S: Supported
F: Documentation/networking/page_pool.rst
-F: include/net/page_pool.h
+F: include/net/page_pool/
F: include/trace/events/page_pool.h
F: net/core/page_pool.c
@@@ -17172,13 -17164,6 +17183,13 @@@ F: drivers/ptp/
F: include/linux/ptp_cl*
K: (?:\b|_)ptp(?:\b|_)
+PTP MOCKUP CLOCK SUPPORT
+M: Vladimir Oltean <vladimir.oltean(a)nxp.com>
+L: netdev(a)vger.kernel.org
+S: Maintained
+F: drivers/ptp/ptp_mock.c
+F: include/linux/ptp_mock.h
+
PTP VIRTUAL CLOCK SUPPORT
M: Yangbo Lu <yangbo.lu(a)nxp.com>
L: netdev(a)vger.kernel.org
@@@ -19249,13 -19234,6 +19260,6 @@@ F: Documentation/devicetree/bindings/se
F: drivers/tty/serdev/
F: include/linux/serdev.h
- SERIAL DRIVERS
- M: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
- L: linux-serial(a)vger.kernel.org
- S: Maintained
- F: Documentation/devicetree/bindings/serial/
- F: drivers/tty/serial/
-
SERIAL IR RECEIVER
M: Sean Young <sean(a)mess.org>
L: linux-media(a)vger.kernel.org
@@@ -21660,20 -21638,16 +21664,16 @@@ W: https://github.com/srcres258/linux-d
T: git git://github.com/srcres258/linux-doc.git doc-zh-tw
F: Documentation/translations/zh_TW/
- TTY LAYER
+ TTY LAYER AND SERIAL DRIVERS
M: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
M: Jiri Slaby <jirislaby(a)kernel.org>
L: linux-kernel(a)vger.kernel.org
L: linux-serial(a)vger.kernel.org
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
+ F: Documentation/devicetree/bindings/serial/
F: Documentation/driver-api/serial/
F: drivers/tty/
- F: drivers/tty/serial/serial_base.h
- F: drivers/tty/serial/serial_base_bus.c
- F: drivers/tty/serial/serial_core.c
- F: drivers/tty/serial/serial_ctrl.c
- F: drivers/tty/serial/serial_port.c
F: include/linux/selection.h
F: include/linux/serial.h
F: include/linux/serial_core.h
diff --combined drivers/leds/trigger/ledtrig-netdev.c
index 42f758880ef8,03c58e50cc44..cc3261543a5e
--- a/drivers/leds/trigger/ledtrig-netdev.c
+++ b/drivers/leds/trigger/ledtrig-netdev.c
@@@ -406,15 -406,15 +406,15 @@@ static ssize_t interval_store(struct de
static DEVICE_ATTR_RW(interval);
- static ssize_t hw_control_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+ static ssize_t offloaded_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct led_netdev_data *trigger_data = led_trigger_get_drvdata(dev);
return sprintf(buf, "%d\n", trigger_data->hw_control);
}
- static DEVICE_ATTR_RO(hw_control);
+ static DEVICE_ATTR_RO(offloaded);
static struct attribute *netdev_trig_attrs[] = {
&dev_attr_device_name.attr,
@@@ -427,7 -427,7 +427,7 @@@
&dev_attr_rx.attr,
&dev_attr_tx.attr,
&dev_attr_interval.attr,
- &dev_attr_hw_control.attr,
+ &dev_attr_offloaded.attr,
NULL
};
ATTRIBUTE_GROUPS(netdev_trig);
@@@ -564,17 -564,15 +564,17 @@@ static int netdev_trig_activate(struct
/* Check if hw control is active by default on the LED.
* Init already enabled mode in hw control.
*/
- if (supports_hw_control(led_cdev) &&
- !led_cdev->hw_control_get(led_cdev, &mode)) {
+ if (supports_hw_control(led_cdev)) {
dev = led_cdev->hw_control_get_device(led_cdev);
if (dev) {
const char *name = dev_name(dev);
set_device_name(trigger_data, name, strlen(name));
trigger_data->hw_control = true;
- trigger_data->mode = mode;
+
+ rc = led_cdev->hw_control_get(led_cdev, &mode);
+ if (!rc)
+ trigger_data->mode = mode;
}
}
@@@ -595,8 -593,6 +595,8 @@@ static void netdev_trig_deactivate(stru
cancel_delayed_work_sync(&trigger_data->work);
+ led_set_brightness(led_cdev, LED_OFF);
+
dev_put(trigger_data->net_dev);
kfree(trigger_data);
diff --combined drivers/net/bonding/bond_alb.c
index cc5049eb25f8,fc5da5d7744d..dc2c7b979656
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@@ -660,15 -660,15 +660,15 @@@ static struct slave *rlb_arp_xmit(struc
return NULL;
arp = (struct arp_pkt *)skb_network_header(skb);
- /* Don't modify or load balance ARPs that do not originate locally
- * (e.g.,arrive via a bridge).
+ /* Don't modify or load balance ARPs that do not originate
+ * from the bond itself or a VLAN directly above the bond.
*/
- if (!bond_slave_has_mac_rx(bond, arp->mac_src))
+ if (!bond_slave_has_mac_rcu(bond, arp->mac_src))
return NULL;
dev = ip_dev_find(dev_net(bond->dev), arp->ip_src);
if (dev) {
- if (netif_is_bridge_master(dev)) {
+ if (netif_is_any_bridge_master(dev)) {
dev_put(dev);
return NULL;
}
diff --combined drivers/net/dsa/mt7530.c
index 8fbda739c1b3,b8bb9f3b3609..035a34b50f31
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@@ -1006,6 -1006,10 +1006,10 @@@ mt753x_trap_frames(struct mt7530_priv *
mt7530_rmw(priv, MT753X_BPC, MT753X_BPDU_PORT_FW_MASK,
MT753X_BPDU_CPU_ONLY);
+ /* Trap 802.1X PAE frames to the CPU port(s) */
+ mt7530_rmw(priv, MT753X_BPC, MT753X_PAE_PORT_FW_MASK,
+ MT753X_PAE_PORT_FW(MT753X_BPDU_CPU_ONLY));
+
/* Trap LLDP frames with :0E MAC DA to the CPU port(s) */
mt7530_rmw(priv, MT753X_RGAC2, MT753X_R0E_PORT_FW_MASK,
MT753X_R0E_PORT_FW(MT753X_BPDU_CPU_ONLY));
@@@ -2949,6 -2953,12 +2953,6 @@@ static void mt753x_phylink_get_caps(str
config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE |
MAC_10 | MAC_100 | MAC_1000FD;
- /* This driver does not make use of the speed, duplex, pause or the
- * advertisement in its mac_config, so it is safe to mark this driver
- * as non-legacy.
- */
- config->legacy_pre_march2020 = false;
-
priv->info->mac_port_get_caps(ds, port, config);
}
diff --combined drivers/net/dsa/ocelot/felix_vsc9959.c
index 4a6e52929d25,f16daa9b1765..3c5509e75a54
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@@ -16,7 -16,6 +16,7 @@@
#include <net/pkt_sched.h>
#include <linux/iopoll.h>
#include <linux/mdio.h>
+#include <linux/of.h>
#include <linux/pci.h>
#include <linux/time.h>
#include "felix.h"
@@@ -1070,6 -1069,9 +1070,9 @@@ static u64 vsc9959_tas_remaining_gate_l
if (gate_len_ns == U64_MAX)
return U64_MAX;
+ if (gate_len_ns < VSC9959_TAS_MIN_GATE_LEN_NS)
+ return 0;
+
return (gate_len_ns - VSC9959_TAS_MIN_GATE_LEN_NS) * PSEC_PER_NSEC;
}
@@@ -1746,10 -1748,10 +1749,10 @@@ static int vsc9959_stream_identify(stru
struct flow_dissector *dissector = rule->match.dissector;
if (dissector->used_keys &
- ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
- BIT(FLOW_DISSECTOR_KEY_BASIC) |
- BIT(FLOW_DISSECTOR_KEY_VLAN) |
- BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS)))
+ ~(BIT_ULL(FLOW_DISSECTOR_KEY_CONTROL) |
+ BIT_ULL(FLOW_DISSECTOR_KEY_BASIC) |
+ BIT_ULL(FLOW_DISSECTOR_KEY_VLAN) |
+ BIT_ULL(FLOW_DISSECTOR_KEY_ETH_ADDRS)))
return -EOPNOTSUPP;
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
diff --combined drivers/net/ethernet/broadcom/bgmac.c
index 7c19ba58e9cc,52ee3751187a..448a1b90de5e
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@@ -1448,9 -1448,9 +1448,9 @@@ int bgmac_phy_connect_direct(struct bgm
int err;
phy_dev = fixed_phy_register(PHY_POLL, &fphy_status, NULL);
- if (!phy_dev || IS_ERR(phy_dev)) {
+ if (IS_ERR(phy_dev)) {
dev_err(bgmac->dev, "Failed to register fixed PHY device\n");
- return -ENODEV;
+ return PTR_ERR(phy_dev);
}
err = phy_connect_direct(bgmac->net_dev, phy_dev, bgmac_adjust_link,
diff --combined drivers/net/ethernet/broadcom/genet/bcmmii.c
index 4012a141a229,cc3afb605b1e..97ea76d443ab
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@@ -617,9 -617,9 +617,9 @@@ static int bcmgenet_mii_pd_init(struct
};
phydev = fixed_phy_register(PHY_POLL, &fphy_status, NULL);
- if (!phydev || IS_ERR(phydev)) {
+ if (IS_ERR(phydev)) {
dev_err(kdev, "failed to register fixed PHY device\n");
- return -ENODEV;
+ return PTR_ERR(phydev);
}
/* Make sure we initialize MoCA PHYs with a link down */
diff --combined drivers/net/ethernet/broadcom/tg3.c
index 7f956cf36337,cb2810f175cc..e388bffda2dd
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@@ -1539,7 -1539,8 +1539,7 @@@ static int tg3_mdio_init(struct tg3 *tp
return -ENOMEM;
tp->mdio_bus->name = "tg3 mdio bus";
- snprintf(tp->mdio_bus->id, MII_BUS_ID_SIZE, "%x",
- (tp->pdev->bus->number << 8) | tp->pdev->devfn);
+ snprintf(tp->mdio_bus->id, MII_BUS_ID_SIZE, "%x", pci_dev_id(tp->pdev));
tp->mdio_bus->priv = tp;
tp->mdio_bus->parent = &tp->pdev->dev;
tp->mdio_bus->read = &tg3_mdio_read;
@@@ -6880,7 -6881,10 +6880,10 @@@ static int tg3_rx(struct tg3_napi *tnap
ri->data = NULL;
- skb = build_skb(data, frag_size);
+ if (frag_size)
+ skb = build_skb(data, frag_size);
+ else
+ skb = slab_build_skb(data);
if (!skb) {
tg3_frag_free(frag_size != 0, data);
goto drop_it_no_recycle;
diff --combined drivers/net/ethernet/intel/i40e/i40e_main.c
index a5ba873c3b24,a86bfa3bba74..de7fd43dc11c
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@@ -2609,7 -2609,7 +2609,7 @@@ int i40e_sync_vsi_filters(struct i40e_v
retval = i40e_correct_mac_vlan_filters
(vsi, &tmp_add_list, &tmp_del_list,
vlan_filters);
- else
+ else if (pf->vf)
retval = i40e_correct_vf_mac_vlan_filters
(vsi, &tmp_add_list, &tmp_del_list,
vlan_filters, pf->vf[vsi->vf_id].trusted);
@@@ -2782,7 -2782,8 +2782,8 @@@
}
/* if the VF is not trusted do not do promisc */
- if ((vsi->type == I40E_VSI_SRIOV) && !pf->vf[vsi->vf_id].trusted) {
+ if (vsi->type == I40E_VSI_SRIOV && pf->vf &&
+ !pf->vf[vsi->vf_id].trusted) {
clear_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state);
goto out;
}
@@@ -3585,6 -3586,11 +3586,6 @@@ static int i40e_configure_rx_ring(struc
if (ring->xsk_pool) {
ring->rx_buf_len =
xsk_pool_get_rx_frame_size(ring->xsk_pool);
- /* For AF_XDP ZC, we disallow packets to span on
- * multiple buffers, thus letting us skip that
- * handling in the fast-path.
- */
- chain_len = 1;
ret = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
MEM_TYPE_XSK_BUFF_POOL,
NULL);
@@@ -5709,7 -5715,7 +5710,7 @@@ int i40e_update_adq_vsi_queues(struct i
int ret;
if (!vsi)
- return I40E_ERR_PARAM;
+ return -EINVAL;
pf = vsi->back;
hw = &pf->hw;
@@@ -7153,7 -7159,7 +7154,7 @@@ static int i40e_init_pf_dcb(struct i40e
*/
if (pf->hw_features & I40E_HW_NO_DCB_SUPPORT) {
dev_info(&pf->pdev->dev, "DCB is not supported.\n");
- err = I40E_NOT_SUPPORTED;
+ err = -EOPNOTSUPP;
goto out;
}
if (pf->flags & I40E_FLAG_DISABLE_FW_LLDP) {
@@@ -7463,7 -7469,7 +7464,7 @@@ static int i40e_force_link_state(struc
if (pf->flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)
non_zero_phy_type = true;
else if (is_up && abilities.phy_type != 0 && abilities.link_speed != 0)
- return I40E_SUCCESS;
+ return 0;
/* To force link we need to set bits for all supported PHY types,
* but there are now more than 32, so we need to split the bitmap
@@@ -7514,7 -7520,7 +7515,7 @@@
i40e_aq_set_link_restart_an(hw, is_up, NULL);
- return I40E_SUCCESS;
+ return 0;
}
/**
@@@ -8361,7 -8367,7 +8362,7 @@@ int i40e_add_del_cloud_filter(struct i4
};
if (filter->flags >= ARRAY_SIZE(flag_table))
- return I40E_ERR_CONFIG;
+ return -EIO;
memset(&cld_filter, 0, sizeof(cld_filter));
@@@ -8525,15 -8531,15 +8526,15 @@@ static int i40e_parse_cls_flower(struc
u8 field_flags = 0;
if (dissector->used_keys &
- ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
- BIT(FLOW_DISSECTOR_KEY_BASIC) |
- BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
- BIT(FLOW_DISSECTOR_KEY_VLAN) |
- BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
- BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
- BIT(FLOW_DISSECTOR_KEY_PORTS) |
- BIT(FLOW_DISSECTOR_KEY_ENC_KEYID))) {
- dev_err(&pf->pdev->dev, "Unsupported key used: 0x%x\n",
+ ~(BIT_ULL(FLOW_DISSECTOR_KEY_CONTROL) |
+ BIT_ULL(FLOW_DISSECTOR_KEY_BASIC) |
+ BIT_ULL(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
+ BIT_ULL(FLOW_DISSECTOR_KEY_VLAN) |
+ BIT_ULL(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
+ BIT_ULL(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
+ BIT_ULL(FLOW_DISSECTOR_KEY_PORTS) |
+ BIT_ULL(FLOW_DISSECTOR_KEY_ENC_KEYID))) {
+ dev_err(&pf->pdev->dev, "Unsupported key used: 0x%llx\n",
dissector->used_keys);
return -EOPNOTSUPP;
}
@@@ -8575,7 -8581,7 +8576,7 @@@
} else {
dev_err(&pf->pdev->dev, "Bad ether dest mask %pM\n",
match.mask->dst);
- return I40E_ERR_CONFIG;
+ return -EIO;
}
}
@@@ -8585,7 -8591,7 +8586,7 @@@
} else {
dev_err(&pf->pdev->dev, "Bad ether src mask %pM\n",
match.mask->src);
- return I40E_ERR_CONFIG;
+ return -EIO;
}
}
ether_addr_copy(filter->dst_mac, match.key->dst);
@@@ -8603,7 -8609,7 +8604,7 @@@
} else {
dev_err(&pf->pdev->dev, "Bad vlan mask 0x%04x\n",
match.mask->vlan_id);
- return I40E_ERR_CONFIG;
+ return -EIO;
}
}
@@@ -8627,7 -8633,7 +8628,7 @@@
} else {
dev_err(&pf->pdev->dev, "Bad ip dst mask %pI4b\n",
&match.mask->dst);
- return I40E_ERR_CONFIG;
+ return -EIO;
}
}
@@@ -8637,13 -8643,13 +8638,13 @@@
} else {
dev_err(&pf->pdev->dev, "Bad ip src mask %pI4b\n",
&match.mask->src);
- return I40E_ERR_CONFIG;
+ return -EIO;
}
}
if (field_flags & I40E_CLOUD_FIELD_TEN_ID) {
dev_err(&pf->pdev->dev, "Tenant id not allowed for ip filter\n");
- return I40E_ERR_CONFIG;
+ return -EIO;
}
filter->dst_ipv4 = match.key->dst;
filter->src_ipv4 = match.key->src;
@@@ -8661,7 -8667,7 +8662,7 @@@
ipv6_addr_loopback(&match.key->src)) {
dev_err(&pf->pdev->dev,
"Bad ipv6, addr is LOOPBACK\n");
- return I40E_ERR_CONFIG;
+ return -EIO;
}
if (!ipv6_addr_any(&match.mask->dst) ||
!ipv6_addr_any(&match.mask->src))
@@@ -8683,7 -8689,7 +8684,7 @@@
} else {
dev_err(&pf->pdev->dev, "Bad src port mask 0x%04x\n",
be16_to_cpu(match.mask->src));
- return I40E_ERR_CONFIG;
+ return -EIO;
}
}
@@@ -8693,7 -8699,7 +8694,7 @@@
} else {
dev_err(&pf->pdev->dev, "Bad dst port mask 0x%04x\n",
be16_to_cpu(match.mask->dst));
- return I40E_ERR_CONFIG;
+ return -EIO;
}
}
@@@ -9901,11 -9907,11 +9902,11 @@@ static void i40e_link_event(struct i40e
status = i40e_get_link_status(&pf->hw, &new_link);
/* On success, disable temp link polling */
- if (status == I40E_SUCCESS) {
+ if (status == 0) {
clear_bit(__I40E_TEMP_LINK_POLLING, pf->state);
} else {
/* Enable link polling temporarily until i40e_get_link_status
- * returns I40E_SUCCESS
+ * returns 0
*/
set_bit(__I40E_TEMP_LINK_POLLING, pf->state);
dev_dbg(&pf->pdev->dev, "couldn't get link state, status: %d\n",
@@@ -10159,7 -10165,7 +10160,7 @@@ static void i40e_clean_adminq_subtask(s
do {
ret = i40e_clean_arq_element(hw, &event, &pending);
- if (ret == I40E_ERR_ADMIN_QUEUE_NO_WORK)
+ if (ret == -EALREADY)
break;
else if (ret) {
dev_info(&pf->pdev->dev, "ARQ event error %d\n", ret);
@@@ -12569,7 -12575,7 +12570,7 @@@ int i40e_commit_partition_bw_setting(st
dev_info(&pf->pdev->dev,
"Commit BW only works on partition 1! This is partition %d",
pf->hw.partition_id);
- ret = I40E_NOT_SUPPORTED;
+ ret = -EOPNOTSUPP;
goto bw_commit_out;
}
@@@ -12651,10 -12657,10 +12652,10 @@@ static bool i40e_is_total_port_shutdown
#define I40E_LINK_BEHAVIOR_WORD_LENGTH 0x1
#define I40E_LINK_BEHAVIOR_OS_FORCED_ENABLED BIT(0)
#define I40E_LINK_BEHAVIOR_PORT_BIT_LENGTH 4
- int read_status = I40E_SUCCESS;
u16 sr_emp_sr_settings_ptr = 0;
u16 features_enable = 0;
u16 link_behavior = 0;
+ int read_status = 0;
bool ret = false;
read_status = i40e_read_nvm_word(&pf->hw,
@@@ -13817,7 -13823,6 +13818,7 @@@ static int i40e_config_netdev(struct i4
NETDEV_XDP_ACT_REDIRECT |
NETDEV_XDP_ACT_XSK_ZEROCOPY |
NETDEV_XDP_ACT_RX_SG;
+ netdev->xdp_zc_max_segs = I40E_MAX_BUFFER_TXD;
} else {
/* Relate the VSI_VMDQ name to the VSI_MAIN name. Note that we
* are still limited by IFNAMSIZ, but we're adding 'v%d\0' to
@@@ -15462,12 -15467,12 +15463,12 @@@ static int i40e_pf_loop_reset(struct i4
int ret;
ret = i40e_pf_reset(hw);
- while (ret != I40E_SUCCESS && time_before(jiffies, time_end)) {
+ while (ret != 0 && time_before(jiffies, time_end)) {
usleep_range(10000, 20000);
ret = i40e_pf_reset(hw);
}
- if (ret == I40E_SUCCESS)
+ if (ret == 0)
pf->pfr_count++;
else
dev_info(&pf->pdev->dev, "PF reset failed: %d\n", ret);
@@@ -15510,10 -15515,10 +15511,10 @@@ static int i40e_handle_resets(struct i4
const int pfr = i40e_pf_loop_reset(pf);
const bool is_empr = i40e_check_fw_empr(pf);
- if (is_empr || pfr != I40E_SUCCESS)
+ if (is_empr || pfr != 0)
dev_crit(&pf->pdev->dev, "Entering recovery mode due to repeated FW resets. This may take several minutes. Refer to the Intel(R) Ethernet Adapters and Devices User Guide.\n");
- return is_empr ? I40E_ERR_RESET_FAILED : pfr;
+ return is_empr ? -EIO : pfr;
}
/**
@@@ -15806,7 -15811,7 +15807,7 @@@ static int i40e_probe(struct pci_dev *p
err = i40e_init_adminq(hw);
if (err) {
- if (err == I40E_ERR_FIRMWARE_API_VERSION)
+ if (err == -EIO)
dev_info(&pdev->dev,
"The driver for the device stopped because the NVM image v%u.%u is newer than expected v%u.%u. You must install the most recent version of the network driver.\n",
hw->aq.api_maj_ver,
diff --combined drivers/net/ethernet/intel/ice/ice_base.c
index 9ab9fb558b5e,074bf9403cd1..7fa43827a3f0
--- a/drivers/net/ethernet/intel/ice/ice_base.c
+++ b/drivers/net/ethernet/intel/ice/ice_base.c
@@@ -408,6 -408,7 +408,6 @@@ static unsigned int ice_rx_offset(struc
*/
static int ice_setup_rx_ctx(struct ice_rx_ring *ring)
{
- int chain_len = ICE_MAX_CHAINED_RX_BUFS;
struct ice_vsi *vsi = ring->vsi;
u32 rxdid = ICE_RXDID_FLEX_NIC;
struct ice_rlan_ctx rlan_ctx;
@@@ -434,7 -435,8 +434,8 @@@
/* Receive Packet Data Buffer Size.
* The Packet Data Buffer Size is defined in 128 byte units.
*/
- rlan_ctx.dbuf = ring->rx_buf_len >> ICE_RLAN_CTX_DBUF_S;
+ rlan_ctx.dbuf = DIV_ROUND_UP(ring->rx_buf_len,
+ BIT_ULL(ICE_RLAN_CTX_DBUF_S));
/* use 32 byte descriptors */
rlan_ctx.dsize = 1;
@@@ -471,11 -473,17 +472,11 @@@
*/
rlan_ctx.showiv = 0;
- /* For AF_XDP ZC, we disallow packets to span on
- * multiple buffers, thus letting us skip that
- * handling in the fast-path.
- */
- if (ring->xsk_pool)
- chain_len = 1;
/* Max packet size for this queue - must not be set to a larger value
* than 5 x DBUF
*/
rlan_ctx.rxmax = min_t(u32, vsi->max_frame,
- chain_len * ring->rx_buf_len);
+ ICE_MAX_CHAINED_RX_BUFS * ring->rx_buf_len);
/* Rx queue threshold in units of 64 */
rlan_ctx.lrxqthresh = 1;
diff --combined drivers/net/ethernet/intel/ice/ice_vf_lib.c
index b95931272b16,ea3310be8354..24e4f4d897b6
--- a/drivers/net/ethernet/intel/ice/ice_vf_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_vf_lib.c
@@@ -185,25 -185,6 +185,6 @@@ int ice_check_vf_ready_for_cfg(struct i
return 0;
}
- /**
- * ice_check_vf_ready_for_reset - check if VF is ready to be reset
- * @vf: VF to check if it's ready to be reset
- *
- * The purpose of this function is to ensure that the VF is not in reset,
- * disabled, and is both initialized and active, thus enabling us to safely
- * initialize another reset.
- */
- int ice_check_vf_ready_for_reset(struct ice_vf *vf)
- {
- int ret;
-
- ret = ice_check_vf_ready_for_cfg(vf);
- if (!ret && !test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
- ret = -EAGAIN;
-
- return ret;
- }
-
/**
* ice_trigger_vf_reset - Reset a VF on HW
* @vf: pointer to the VF structure
@@@ -322,237 -303,6 +303,237 @@@ static int ice_vf_rebuild_vsi(struct ic
return 0;
}
+/**
+ * ice_vf_rebuild_host_vlan_cfg - add VLAN 0 filter or rebuild the Port VLAN
+ * @vf: VF to add MAC filters for
+ * @vsi: Pointer to VSI
+ *
+ * Called after a VF VSI has been re-added/rebuilt during reset. The PF driver
+ * always re-adds either a VLAN 0 or port VLAN based filter after reset.
+ */
+static int ice_vf_rebuild_host_vlan_cfg(struct ice_vf *vf, struct ice_vsi *vsi)
+{
+ struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
+ struct device *dev = ice_pf_to_dev(vf->pf);
+ int err;
+
+ if (ice_vf_is_port_vlan_ena(vf)) {
+ err = vlan_ops->set_port_vlan(vsi, &vf->port_vlan_info);
+ if (err) {
+ dev_err(dev, "failed to configure port VLAN via VSI parameters for VF %u, error %d\n",
+ vf->vf_id, err);
+ return err;
+ }
+
+ err = vlan_ops->add_vlan(vsi, &vf->port_vlan_info);
+ } else {
+ err = ice_vsi_add_vlan_zero(vsi);
+ }
+
+ if (err) {
+ dev_err(dev, "failed to add VLAN %u filter for VF %u during VF rebuild, error %d\n",
+ ice_vf_is_port_vlan_ena(vf) ?
+ ice_vf_get_port_vlan_id(vf) : 0, vf->vf_id, err);
+ return err;
+ }
+
+ err = vlan_ops->ena_rx_filtering(vsi);
+ if (err)
+ dev_warn(dev, "failed to enable Rx VLAN filtering for VF %d VSI %d during VF rebuild, error %d\n",
+ vf->vf_id, vsi->idx, err);
+
+ return 0;
+}
+
+/**
+ * ice_vf_rebuild_host_tx_rate_cfg - re-apply the Tx rate limiting configuration
+ * @vf: VF to re-apply the configuration for
+ *
+ * Called after a VF VSI has been re-added/rebuild during reset. The PF driver
+ * needs to re-apply the host configured Tx rate limiting configuration.
+ */
+static int ice_vf_rebuild_host_tx_rate_cfg(struct ice_vf *vf)
+{
+ struct device *dev = ice_pf_to_dev(vf->pf);
+ struct ice_vsi *vsi = ice_get_vf_vsi(vf);
+ int err;
+
+ if (WARN_ON(!vsi))
+ return -EINVAL;
+
+ if (vf->min_tx_rate) {
+ err = ice_set_min_bw_limit(vsi, (u64)vf->min_tx_rate * 1000);
+ if (err) {
+ dev_err(dev, "failed to set min Tx rate to %d Mbps for VF %u, error %d\n",
+ vf->min_tx_rate, vf->vf_id, err);
+ return err;
+ }
+ }
+
+ if (vf->max_tx_rate) {
+ err = ice_set_max_bw_limit(vsi, (u64)vf->max_tx_rate * 1000);
+ if (err) {
+ dev_err(dev, "failed to set max Tx rate to %d Mbps for VF %u, error %d\n",
+ vf->max_tx_rate, vf->vf_id, err);
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * ice_vf_set_host_trust_cfg - set trust setting based on pre-reset value
+ * @vf: VF to configure trust setting for
+ */
+static void ice_vf_set_host_trust_cfg(struct ice_vf *vf)
+{
+ assign_bit(ICE_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps, vf->trusted);
+}
+
+/**
+ * ice_vf_rebuild_host_mac_cfg - add broadcast and the VF's perm_addr/LAA
+ * @vf: VF to add MAC filters for
+ *
+ * Called after a VF VSI has been re-added/rebuilt during reset. The PF driver
+ * always re-adds a broadcast filter and the VF's perm_addr/LAA after reset.
+ */
+static int ice_vf_rebuild_host_mac_cfg(struct ice_vf *vf)
+{
+ struct device *dev = ice_pf_to_dev(vf->pf);
+ struct ice_vsi *vsi = ice_get_vf_vsi(vf);
+ u8 broadcast[ETH_ALEN];
+ int status;
+
+ if (WARN_ON(!vsi))
+ return -EINVAL;
+
+ if (ice_is_eswitch_mode_switchdev(vf->pf))
+ return 0;
+
+ eth_broadcast_addr(broadcast);
+ status = ice_fltr_add_mac(vsi, broadcast, ICE_FWD_TO_VSI);
+ if (status) {
+ dev_err(dev, "failed to add broadcast MAC filter for VF %u, error %d\n",
+ vf->vf_id, status);
+ return status;
+ }
+
+ vf->num_mac++;
+
+ if (is_valid_ether_addr(vf->hw_lan_addr)) {
+ status = ice_fltr_add_mac(vsi, vf->hw_lan_addr,
+ ICE_FWD_TO_VSI);
+ if (status) {
+ dev_err(dev, "failed to add default unicast MAC filter %pM for VF %u, error %d\n",
+ &vf->hw_lan_addr[0], vf->vf_id,
+ status);
+ return status;
+ }
+ vf->num_mac++;
+
+ ether_addr_copy(vf->dev_lan_addr, vf->hw_lan_addr);
+ }
+
+ return 0;
+}
+
+/**
+ * ice_vf_rebuild_aggregator_node_cfg - rebuild aggregator node config
+ * @vsi: Pointer to VSI
+ *
+ * This function moves VSI into corresponding scheduler aggregator node
+ * based on cached value of "aggregator node info" per VSI
+ */
+static void ice_vf_rebuild_aggregator_node_cfg(struct ice_vsi *vsi)
+{
+ struct ice_pf *pf = vsi->back;
+ struct device *dev;
+ int status;
+
+ if (!vsi->agg_node)
+ return;
+
+ dev = ice_pf_to_dev(pf);
+ if (vsi->agg_node->num_vsis == ICE_MAX_VSIS_IN_AGG_NODE) {
+ dev_dbg(dev,
+ "agg_id %u already has reached max_num_vsis %u\n",
+ vsi->agg_node->agg_id, vsi->agg_node->num_vsis);
+ return;
+ }
+
+ status = ice_move_vsi_to_agg(pf->hw.port_info, vsi->agg_node->agg_id,
+ vsi->idx, vsi->tc_cfg.ena_tc);
+ if (status)
+ dev_dbg(dev, "unable to move VSI idx %u into aggregator %u node",
+ vsi->idx, vsi->agg_node->agg_id);
+ else
+ vsi->agg_node->num_vsis++;
+}
+
+/**
+ * ice_vf_rebuild_host_cfg - host admin configuration is persistent across reset
+ * @vf: VF to rebuild host configuration on
+ */
+static void ice_vf_rebuild_host_cfg(struct ice_vf *vf)
+{
+ struct device *dev = ice_pf_to_dev(vf->pf);
+ struct ice_vsi *vsi = ice_get_vf_vsi(vf);
+
+ if (WARN_ON(!vsi))
+ return;
+
+ ice_vf_set_host_trust_cfg(vf);
+
+ if (ice_vf_rebuild_host_mac_cfg(vf))
+ dev_err(dev, "failed to rebuild default MAC configuration for VF %d\n",
+ vf->vf_id);
+
+ if (ice_vf_rebuild_host_vlan_cfg(vf, vsi))
+ dev_err(dev, "failed to rebuild VLAN configuration for VF %u\n",
+ vf->vf_id);
+
+ if (ice_vf_rebuild_host_tx_rate_cfg(vf))
+ dev_err(dev, "failed to rebuild Tx rate limiting configuration for VF %u\n",
+ vf->vf_id);
+
+ if (ice_vsi_apply_spoofchk(vsi, vf->spoofchk))
+ dev_err(dev, "failed to rebuild spoofchk configuration for VF %d\n",
+ vf->vf_id);
+
+ /* rebuild aggregator node config for main VF VSI */
+ ice_vf_rebuild_aggregator_node_cfg(vsi);
+}
+
+/**
+ * ice_set_vf_state_qs_dis - Set VF queues state to disabled
+ * @vf: pointer to the VF structure
+ */
+static void ice_set_vf_state_qs_dis(struct ice_vf *vf)
+{
+ /* Clear Rx/Tx enabled queues flag */
+ bitmap_zero(vf->txq_ena, ICE_MAX_RSS_QS_PER_VF);
+ bitmap_zero(vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF);
+ clear_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
+}
+
+/**
+ * ice_vf_set_initialized - VF is ready for VIRTCHNL communication
+ * @vf: VF to set in initialized state
+ *
+ * After this function the VF will be ready to receive/handle the
+ * VIRTCHNL_OP_GET_VF_RESOURCES message
+ */
+static void ice_vf_set_initialized(struct ice_vf *vf)
+{
+ ice_set_vf_state_qs_dis(vf);
+ clear_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states);
+ clear_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states);
+ clear_bit(ICE_VF_STATE_DIS, vf->vf_states);
+ set_bit(ICE_VF_STATE_INIT, vf->vf_states);
+ memset(&vf->vlan_v2_caps, 0, sizeof(vf->vlan_v2_caps));
+}
+
/**
* ice_vf_post_vsi_rebuild - Reset tasks that occur after VSI rebuild
* @vf: the VF being reset
@@@ -862,11 -612,17 +843,17 @@@ int ice_reset_vf(struct ice_vf *vf, u3
return 0;
}
+ if (flags & ICE_VF_RESET_LOCK)
+ mutex_lock(&vf->cfg_lock);
+ else
+ lockdep_assert_held(&vf->cfg_lock);
+
if (ice_is_vf_disabled(vf)) {
vsi = ice_get_vf_vsi(vf);
if (!vsi) {
dev_dbg(dev, "VF is already removed\n");
- return -EINVAL;
+ err = -EINVAL;
+ goto out_unlock;
}
ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, vf->vf_id);
@@@ -875,14 -631,9 +862,9 @@@
dev_dbg(dev, "VF is already disabled, there is no need for resetting it, telling VM, all is fine %d\n",
vf->vf_id);
- return 0;
+ goto out_unlock;
}
- if (flags & ICE_VF_RESET_LOCK)
- mutex_lock(&vf->cfg_lock);
- else
- lockdep_assert_held(&vf->cfg_lock);
-
/* Set VF disable bit state here, before triggering reset */
set_bit(ICE_VF_STATE_DIS, vf->vf_states);
ice_trigger_vf_reset(vf, flags & ICE_VF_RESET_VFLR, false);
@@@ -956,6 -707,18 +938,6 @@@ out_unlock
return err;
}
-/**
- * ice_set_vf_state_qs_dis - Set VF queues state to disabled
- * @vf: pointer to the VF structure
- */
-static void ice_set_vf_state_qs_dis(struct ice_vf *vf)
-{
- /* Clear Rx/Tx enabled queues flag */
- bitmap_zero(vf->txq_ena, ICE_MAX_RSS_QS_PER_VF);
- bitmap_zero(vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF);
- clear_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
-}
-
/**
* ice_set_vf_state_dis - Set VF state to disabled
* @vf: pointer to the VF structure
@@@ -1196,6 -959,211 +1178,6 @@@ bool ice_is_vf_link_up(struct ice_vf *v
ICE_AQ_LINK_UP;
}
-/**
- * ice_vf_set_host_trust_cfg - set trust setting based on pre-reset value
- * @vf: VF to configure trust setting for
- */
-static void ice_vf_set_host_trust_cfg(struct ice_vf *vf)
-{
- if (vf->trusted)
- set_bit(ICE_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
- else
- clear_bit(ICE_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
-}
-
-/**
- * ice_vf_rebuild_host_mac_cfg - add broadcast and the VF's perm_addr/LAA
- * @vf: VF to add MAC filters for
- *
- * Called after a VF VSI has been re-added/rebuilt during reset. The PF driver
- * always re-adds a broadcast filter and the VF's perm_addr/LAA after reset.
- */
-static int ice_vf_rebuild_host_mac_cfg(struct ice_vf *vf)
-{
- struct device *dev = ice_pf_to_dev(vf->pf);
- struct ice_vsi *vsi = ice_get_vf_vsi(vf);
- u8 broadcast[ETH_ALEN];
- int status;
-
- if (WARN_ON(!vsi))
- return -EINVAL;
-
- if (ice_is_eswitch_mode_switchdev(vf->pf))
- return 0;
-
- eth_broadcast_addr(broadcast);
- status = ice_fltr_add_mac(vsi, broadcast, ICE_FWD_TO_VSI);
- if (status) {
- dev_err(dev, "failed to add broadcast MAC filter for VF %u, error %d\n",
- vf->vf_id, status);
- return status;
- }
-
- vf->num_mac++;
-
- if (is_valid_ether_addr(vf->hw_lan_addr)) {
- status = ice_fltr_add_mac(vsi, vf->hw_lan_addr,
- ICE_FWD_TO_VSI);
- if (status) {
- dev_err(dev, "failed to add default unicast MAC filter %pM for VF %u, error %d\n",
- &vf->hw_lan_addr[0], vf->vf_id,
- status);
- return status;
- }
- vf->num_mac++;
-
- ether_addr_copy(vf->dev_lan_addr, vf->hw_lan_addr);
- }
-
- return 0;
-}
-
-/**
- * ice_vf_rebuild_host_vlan_cfg - add VLAN 0 filter or rebuild the Port VLAN
- * @vf: VF to add MAC filters for
- * @vsi: Pointer to VSI
- *
- * Called after a VF VSI has been re-added/rebuilt during reset. The PF driver
- * always re-adds either a VLAN 0 or port VLAN based filter after reset.
- */
-static int ice_vf_rebuild_host_vlan_cfg(struct ice_vf *vf, struct ice_vsi *vsi)
-{
- struct ice_vsi_vlan_ops *vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
- struct device *dev = ice_pf_to_dev(vf->pf);
- int err;
-
- if (ice_vf_is_port_vlan_ena(vf)) {
- err = vlan_ops->set_port_vlan(vsi, &vf->port_vlan_info);
- if (err) {
- dev_err(dev, "failed to configure port VLAN via VSI parameters for VF %u, error %d\n",
- vf->vf_id, err);
- return err;
- }
-
- err = vlan_ops->add_vlan(vsi, &vf->port_vlan_info);
- } else {
- err = ice_vsi_add_vlan_zero(vsi);
- }
-
- if (err) {
- dev_err(dev, "failed to add VLAN %u filter for VF %u during VF rebuild, error %d\n",
- ice_vf_is_port_vlan_ena(vf) ?
- ice_vf_get_port_vlan_id(vf) : 0, vf->vf_id, err);
- return err;
- }
-
- err = vlan_ops->ena_rx_filtering(vsi);
- if (err)
- dev_warn(dev, "failed to enable Rx VLAN filtering for VF %d VSI %d during VF rebuild, error %d\n",
- vf->vf_id, vsi->idx, err);
-
- return 0;
-}
-
-/**
- * ice_vf_rebuild_host_tx_rate_cfg - re-apply the Tx rate limiting configuration
- * @vf: VF to re-apply the configuration for
- *
- * Called after a VF VSI has been re-added/rebuild during reset. The PF driver
- * needs to re-apply the host configured Tx rate limiting configuration.
- */
-static int ice_vf_rebuild_host_tx_rate_cfg(struct ice_vf *vf)
-{
- struct device *dev = ice_pf_to_dev(vf->pf);
- struct ice_vsi *vsi = ice_get_vf_vsi(vf);
- int err;
-
- if (WARN_ON(!vsi))
- return -EINVAL;
-
- if (vf->min_tx_rate) {
- err = ice_set_min_bw_limit(vsi, (u64)vf->min_tx_rate * 1000);
- if (err) {
- dev_err(dev, "failed to set min Tx rate to %d Mbps for VF %u, error %d\n",
- vf->min_tx_rate, vf->vf_id, err);
- return err;
- }
- }
-
- if (vf->max_tx_rate) {
- err = ice_set_max_bw_limit(vsi, (u64)vf->max_tx_rate * 1000);
- if (err) {
- dev_err(dev, "failed to set max Tx rate to %d Mbps for VF %u, error %d\n",
- vf->max_tx_rate, vf->vf_id, err);
- return err;
- }
- }
-
- return 0;
-}
-
-/**
- * ice_vf_rebuild_aggregator_node_cfg - rebuild aggregator node config
- * @vsi: Pointer to VSI
- *
- * This function moves VSI into corresponding scheduler aggregator node
- * based on cached value of "aggregator node info" per VSI
- */
-static void ice_vf_rebuild_aggregator_node_cfg(struct ice_vsi *vsi)
-{
- struct ice_pf *pf = vsi->back;
- struct device *dev;
- int status;
-
- if (!vsi->agg_node)
- return;
-
- dev = ice_pf_to_dev(pf);
- if (vsi->agg_node->num_vsis == ICE_MAX_VSIS_IN_AGG_NODE) {
- dev_dbg(dev,
- "agg_id %u already has reached max_num_vsis %u\n",
- vsi->agg_node->agg_id, vsi->agg_node->num_vsis);
- return;
- }
-
- status = ice_move_vsi_to_agg(pf->hw.port_info, vsi->agg_node->agg_id,
- vsi->idx, vsi->tc_cfg.ena_tc);
- if (status)
- dev_dbg(dev, "unable to move VSI idx %u into aggregator %u node",
- vsi->idx, vsi->agg_node->agg_id);
- else
- vsi->agg_node->num_vsis++;
-}
-
-/**
- * ice_vf_rebuild_host_cfg - host admin configuration is persistent across reset
- * @vf: VF to rebuild host configuration on
- */
-void ice_vf_rebuild_host_cfg(struct ice_vf *vf)
-{
- struct device *dev = ice_pf_to_dev(vf->pf);
- struct ice_vsi *vsi = ice_get_vf_vsi(vf);
-
- if (WARN_ON(!vsi))
- return;
-
- ice_vf_set_host_trust_cfg(vf);
-
- if (ice_vf_rebuild_host_mac_cfg(vf))
- dev_err(dev, "failed to rebuild default MAC configuration for VF %d\n",
- vf->vf_id);
-
- if (ice_vf_rebuild_host_vlan_cfg(vf, vsi))
- dev_err(dev, "failed to rebuild VLAN configuration for VF %u\n",
- vf->vf_id);
-
- if (ice_vf_rebuild_host_tx_rate_cfg(vf))
- dev_err(dev, "failed to rebuild Tx rate limiting configuration for VF %u\n",
- vf->vf_id);
-
- if (ice_vsi_apply_spoofchk(vsi, vf->spoofchk))
- dev_err(dev, "failed to rebuild spoofchk configuration for VF %d\n",
- vf->vf_id);
-
- /* rebuild aggregator node config for main VF VSI */
- ice_vf_rebuild_aggregator_node_cfg(vsi);
-}
-
/**
* ice_vf_ctrl_invalidate_vsi - invalidate ctrl_vsi_idx to remove VSI access
* @vf: VF that control VSI is being invalidated on
@@@ -1324,6 -1292,23 +1306,6 @@@ void ice_vf_vsi_release(struct ice_vf *
ice_vf_invalidate_vsi(vf);
}
-/**
- * ice_vf_set_initialized - VF is ready for VIRTCHNL communication
- * @vf: VF to set in initialized state
- *
- * After this function the VF will be ready to receive/handle the
- * VIRTCHNL_OP_GET_VF_RESOURCES message
- */
-void ice_vf_set_initialized(struct ice_vf *vf)
-{
- ice_set_vf_state_qs_dis(vf);
- clear_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states);
- clear_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states);
- clear_bit(ICE_VF_STATE_DIS, vf->vf_states);
- set_bit(ICE_VF_STATE_INIT, vf->vf_states);
- memset(&vf->vlan_v2_caps, 0, sizeof(vf->vlan_v2_caps));
-}
-
/**
* ice_get_vf_ctrl_vsi - Get first VF control VSI pointer
* @pf: the PF private structure
diff --combined drivers/net/ethernet/intel/ice/ice_virtchnl.c
index 4a02ed91ba73,dcf628b1fccd..b03426ac932b
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
@@@ -428,7 -428,7 +428,7 @@@ static int ice_vc_get_vf_res_msg(struc
goto err;
}
- len = sizeof(struct virtchnl_vf_resource);
+ len = virtchnl_struct_size(vfres, vsi_res, 0);
vfres = kzalloc(len, GFP_KERNEL);
if (!vfres) {
@@@ -500,7 -500,7 +500,7 @@@
vfres->num_queue_pairs = vsi->num_txq;
vfres->max_vectors = vf->pf->vfs.num_msix_per;
vfres->rss_key_size = ICE_VSIQF_HKEY_ARRAY_SIZE;
- vfres->rss_lut_size = ICE_VSIQF_HLUT_ARRAY_SIZE;
+ vfres->rss_lut_size = ICE_LUT_VSI_SIZE;
vfres->max_mtu = ice_vc_get_max_frame_size(vf);
vfres->vsi_res[0].vsi_id = vf->lan_vsi_num;
@@@ -962,7 -962,7 +962,7 @@@ static int ice_vc_config_rss_lut(struc
goto error_param;
}
- if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) {
+ if (vrl->lut_entries != ICE_LUT_VSI_SIZE) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
goto error_param;
}
@@@ -978,7 -978,7 +978,7 @@@
goto error_param;
}
- if (ice_set_rss_lut(vsi, vrl->lut, ICE_VSIQF_HLUT_ARRAY_SIZE))
+ if (ice_set_rss_lut(vsi, vrl->lut, ICE_LUT_VSI_SIZE))
v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
error_param:
return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, v_ret,
@@@ -1724,8 -1724,6 +1724,8 @@@ error_param
vf->vf_id, i);
}
+ ice_lag_move_new_vf_nodes(vf);
+
/* send the response to the VF */
return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
VIRTCHNL_STATUS_ERR_PARAM, NULL, 0);
@@@ -3949,7 -3947,6 +3949,6 @@@ error_handler
ice_vc_notify_vf_link_state(vf);
break;
case VIRTCHNL_OP_RESET_VF:
- clear_bit(ICE_VF_STATE_ACTIVE, vf->vf_states);
ops->reset_vf(vf);
break;
case VIRTCHNL_OP_ADD_ETH_ADDR:
diff --combined drivers/net/ethernet/mediatek/mtk_wed.c
index 00aeee0d5e45,3b651efcc25e..94376aa2b34c
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@@ -2,7 -2,6 +2,7 @@@
/* Copyright (C) 2021 Felix Fietkau <nbd(a)nbd.name> */
#include <linux/kernel.h>
+#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/bitfield.h>
@@@ -222,9 -221,13 +222,13 @@@ void mtk_wed_fe_reset(void
for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
struct mtk_wed_hw *hw = hw_list[i];
- struct mtk_wed_device *dev = hw->wed_dev;
+ struct mtk_wed_device *dev;
int err;
+ if (!hw)
+ break;
+
+ dev = hw->wed_dev;
if (!dev || !dev->wlan.reset)
continue;
@@@ -245,8 -248,12 +249,12 @@@ void mtk_wed_fe_reset_complete(void
for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
struct mtk_wed_hw *hw = hw_list[i];
- struct mtk_wed_device *dev = hw->wed_dev;
+ struct mtk_wed_device *dev;
+
+ if (!hw)
+ break;
+ dev = hw->wed_dev;
if (!dev || !dev->wlan.reset_complete)
continue;
@@@ -1092,7 -1099,7 +1100,7 @@@ mtk_wed_rx_reset(struct mtk_wed_device
} else {
struct mtk_eth *eth = dev->hw->eth;
- if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ if (mtk_is_netsys_v2_or_greater(eth))
wed_set(dev, MTK_WED_RESET_IDX,
MTK_WED_RESET_IDX_RX_V2);
else
@@@ -1908,7 -1915,7 +1916,7 @@@ void mtk_wed_add_hw(struct device_node
hw->wdma = wdma;
hw->index = index;
hw->irq = irq;
- hw->version = MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2) ? 2 : 1;
+ hw->version = mtk_is_netsys_v1(eth) ? 1 : 2;
if (hw->version == 1) {
hw->mirror = syscon_regmap_lookup_by_phandle(eth_np,
diff --combined drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.c
index 7870327d921b,973de2adc943..70f9b5e85a26
--- a/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.c
@@@ -32,8 -32,8 +32,8 @@@ static const struct mlxsw_afk_element_i
MLXSW_AFK_ELEMENT_INFO_U32(IP_TTL_, 0x18, 0, 8),
MLXSW_AFK_ELEMENT_INFO_U32(IP_ECN, 0x18, 9, 2),
MLXSW_AFK_ELEMENT_INFO_U32(IP_DSCP, 0x18, 11, 6),
- MLXSW_AFK_ELEMENT_INFO_U32(VIRT_ROUTER_MSB, 0x18, 17, 3),
- MLXSW_AFK_ELEMENT_INFO_U32(VIRT_ROUTER_LSB, 0x18, 20, 8),
+ MLXSW_AFK_ELEMENT_INFO_U32(VIRT_ROUTER_MSB, 0x18, 17, 4),
+ MLXSW_AFK_ELEMENT_INFO_U32(VIRT_ROUTER_LSB, 0x18, 21, 8),
MLXSW_AFK_ELEMENT_INFO_BUF(SRC_IP_96_127, 0x20, 4),
MLXSW_AFK_ELEMENT_INFO_BUF(SRC_IP_64_95, 0x24, 4),
MLXSW_AFK_ELEMENT_INFO_BUF(SRC_IP_32_63, 0x28, 4),
@@@ -43,7 -43,6 +43,7 @@@
MLXSW_AFK_ELEMENT_INFO_BUF(DST_IP_32_63, 0x38, 4),
MLXSW_AFK_ELEMENT_INFO_BUF(DST_IP_0_31, 0x3C, 4),
MLXSW_AFK_ELEMENT_INFO_U32(FDB_MISS, 0x40, 0, 1),
+ MLXSW_AFK_ELEMENT_INFO_U32(L4_PORT_RANGE, 0x40, 1, 16),
};
struct mlxsw_afk {
diff --combined drivers/net/ethernet/mellanox/mlxsw/reg.h
index 4b90ae44b476,17160e867bef..ae556ddd7624
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@@ -97,14 -97,6 +97,6 @@@ MLXSW_ITEM32(reg, sspr, m, 0x00, 31, 1)
*/
MLXSW_ITEM32_LP(reg, sspr, 0x00, 16, 0x00, 12);
- /* reg_sspr_sub_port
- * Virtual port within the physical port.
- * Should be set to 0 when virtual ports are not enabled on the port.
- *
- * Access: RW
- */
- MLXSW_ITEM32(reg, sspr, sub_port, 0x00, 8, 8);
-
/* reg_sspr_system_port
* Unique identifier within the stacking domain that represents all the ports
* that are available in the system (external ports).
@@@ -120,7 -112,6 +112,6 @@@ static inline void mlxsw_reg_sspr_pack(
MLXSW_REG_ZERO(sspr, payload);
mlxsw_reg_sspr_m_set(payload, 1);
mlxsw_reg_sspr_local_port_set(payload, local_port);
- mlxsw_reg_sspr_sub_port_set(payload, 0);
mlxsw_reg_sspr_system_port_set(payload, local_port);
}
@@@ -2799,78 -2790,6 +2790,78 @@@ static inline void mlxsw_reg_ptar_unpac
mlxsw_reg_ptar_tcam_region_info_memcpy_from(payload, tcam_region_info);
}
+/* PPRR - Policy-Engine Port Range Register
+ * ----------------------------------------
+ * This register is used for configuring port range identification.
+ */
+#define MLXSW_REG_PPRR_ID 0x3008
+#define MLXSW_REG_PPRR_LEN 0x14
+
+MLXSW_REG_DEFINE(pprr, MLXSW_REG_PPRR_ID, MLXSW_REG_PPRR_LEN);
+
+/* reg_pprr_ipv4
+ * Apply port range register to IPv4 packets.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, pprr, ipv4, 0x00, 31, 1);
+
+/* reg_pprr_ipv6
+ * Apply port range register to IPv6 packets.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, pprr, ipv6, 0x00, 30, 1);
+
+/* reg_pprr_src
+ * Apply port range register to source L4 ports.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, pprr, src, 0x00, 29, 1);
+
+/* reg_pprr_dst
+ * Apply port range register to destination L4 ports.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, pprr, dst, 0x00, 28, 1);
+
+/* reg_pprr_tcp
+ * Apply port range register to TCP packets.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, pprr, tcp, 0x00, 27, 1);
+
+/* reg_pprr_udp
+ * Apply port range register to UDP packets.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, pprr, udp, 0x00, 26, 1);
+
+/* reg_pprr_register_index
+ * Index of Port Range Register being accessed.
+ * Range is 0..cap_max_acl_l4_port_range-1.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, pprr, register_index, 0x00, 0, 8);
+
+/* reg_prrr_port_range_min
+ * Minimum port range for comparison.
+ * Match is defined as:
+ * port_range_min <= packet_port <= port_range_max.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, pprr, port_range_min, 0x04, 16, 16);
+
+/* reg_prrr_port_range_max
+ * Maximum port range for comparison.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, pprr, port_range_max, 0x04, 0, 16);
+
+static inline void mlxsw_reg_pprr_pack(char *payload, u8 register_index)
+{
+ MLXSW_REG_ZERO(pprr, payload);
+ mlxsw_reg_pprr_register_index_set(payload, register_index);
+}
+
/* PPBS - Policy-Engine Policy Based Switching Register
* ----------------------------------------------------
* This register retrieves and sets Policy Based Switching Table entries.
@@@ -9640,10 -9559,18 +9631,10 @@@ static inline void mlxsw_reg_mtbr_temp_
*/
#define MLXSW_REG_MCIA_ID 0x9014
-#define MLXSW_REG_MCIA_LEN 0x40
+#define MLXSW_REG_MCIA_LEN 0x94
MLXSW_REG_DEFINE(mcia, MLXSW_REG_MCIA_ID, MLXSW_REG_MCIA_LEN);
-/* reg_mcia_l
- * Lock bit. Setting this bit will lock the access to the specific
- * cable. Used for updating a full page in a cable EPROM. Any access
- * other then subsequence writes will fail while the port is locked.
- * Access: RW
- */
-MLXSW_ITEM32(reg, mcia, l, 0x00, 31, 1);
-
/* reg_mcia_module
* Module number.
* Access: Index
@@@ -9708,6 -9635,7 +9699,6 @@@ MLXSW_ITEM32(reg, mcia, size, 0x08, 0,
#define MLXSW_REG_MCIA_EEPROM_PAGE_LENGTH 256
#define MLXSW_REG_MCIA_EEPROM_UP_PAGE_LENGTH 128
-#define MLXSW_REG_MCIA_EEPROM_SIZE 48
#define MLXSW_REG_MCIA_I2C_ADDR_LOW 0x50
#define MLXSW_REG_MCIA_I2C_ADDR_HIGH 0x51
#define MLXSW_REG_MCIA_PAGE0_LO_OFF 0xa0
@@@ -9744,7 -9672,7 +9735,7 @@@ enum mlxsw_reg_mcia_eeprom_module_info
* Bytes to read/write.
* Access: RW
*/
-MLXSW_ITEM_BUF(reg, mcia, eeprom, 0x10, MLXSW_REG_MCIA_EEPROM_SIZE);
+MLXSW_ITEM_BUF(reg, mcia, eeprom, 0x10, 128);
/* This is used to access the optional upper pages (1-3) in the QSFP+
* memory map. Page 1 is available on offset 256 through 383, page 2 -
@@@ -9755,12 -9683,14 +9746,12 @@@
MLXSW_REG_MCIA_EEPROM_UP_PAGE_LENGTH + 1)
static inline void mlxsw_reg_mcia_pack(char *payload, u8 slot_index, u8 module,
- u8 lock, u8 page_number,
- u16 device_addr, u8 size,
+ u8 page_number, u16 device_addr, u8 size,
u8 i2c_device_addr)
{
MLXSW_REG_ZERO(mcia, payload);
mlxsw_reg_mcia_slot_set(payload, slot_index);
mlxsw_reg_mcia_module_set(payload, module);
- mlxsw_reg_mcia_l_set(payload, lock);
mlxsw_reg_mcia_page_number_set(payload, page_number);
mlxsw_reg_mcia_device_address_set(payload, device_addr);
mlxsw_reg_mcia_size_set(payload, size);
@@@ -10570,79 -10500,6 +10561,79 @@@ static inline void mlxsw_reg_mcda_pack(
mlxsw_reg_mcda_data_set(payload, i, *(u32 *) &data[i * 4]);
}
+/* MCAM - Management Capabilities Mask Register
+ * --------------------------------------------
+ * Reports the device supported management features.
+ */
+#define MLXSW_REG_MCAM_ID 0x907F
+#define MLXSW_REG_MCAM_LEN 0x48
+
+MLXSW_REG_DEFINE(mcam, MLXSW_REG_MCAM_ID, MLXSW_REG_MCAM_LEN);
+
+enum mlxsw_reg_mcam_feature_group {
+ /* Enhanced features. */
+ MLXSW_REG_MCAM_FEATURE_GROUP_ENHANCED_FEATURES,
+};
+
+/* reg_mcam_feature_group
+ * Feature list mask index.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, mcam, feature_group, 0x00, 16, 8);
+
+enum mlxsw_reg_mcam_mng_feature_cap_mask_bits {
+ /* If set, MCIA supports 128 bytes payloads. Otherwise, 48 bytes. */
+ MLXSW_REG_MCAM_MCIA_128B = 34,
+};
+
+#define MLXSW_REG_BYTES_PER_DWORD 0x4
+
+/* reg_mcam_mng_feature_cap_mask
+ * Supported port's enhanced features.
+ * Based on feature_group index.
+ * When bit is set, the feature is supported in the device.
+ * Access: RO
+ */
+#define MLXSW_REG_MCAM_MNG_FEATURE_CAP_MASK_DWORD(_dw_num, _offset) \
+ MLXSW_ITEM_BIT_ARRAY(reg, mcam, mng_feature_cap_mask_dw##_dw_num, \
+ _offset, MLXSW_REG_BYTES_PER_DWORD, 1)
+
+/* The access to the bits in the field 'mng_feature_cap_mask' is not same to
+ * other mask fields in other registers. In most of the cases bit #0 is the
+ * first one in the last dword. In MCAM register, the first dword contains bits
+ * #0-#31 and so on, so the access to the bits is simpler using bit array per
+ * dword. Declare each dword of 'mng_feature_cap_mask' field separately.
+ */
+MLXSW_REG_MCAM_MNG_FEATURE_CAP_MASK_DWORD(0, 0x28);
+MLXSW_REG_MCAM_MNG_FEATURE_CAP_MASK_DWORD(1, 0x2C);
+MLXSW_REG_MCAM_MNG_FEATURE_CAP_MASK_DWORD(2, 0x30);
+MLXSW_REG_MCAM_MNG_FEATURE_CAP_MASK_DWORD(3, 0x34);
+
+static inline void
+mlxsw_reg_mcam_pack(char *payload, enum mlxsw_reg_mcam_feature_group feat_group)
+{
+ MLXSW_REG_ZERO(mcam, payload);
+ mlxsw_reg_mcam_feature_group_set(payload, feat_group);
+}
+
+static inline void
+mlxsw_reg_mcam_unpack(char *payload,
+ enum mlxsw_reg_mcam_mng_feature_cap_mask_bits bit,
+ bool *p_mng_feature_cap_val)
+{
+ int offset = bit % (MLXSW_REG_BYTES_PER_DWORD * BITS_PER_BYTE);
+ int dword = bit / (MLXSW_REG_BYTES_PER_DWORD * BITS_PER_BYTE);
+ u8 (*getters[])(const char *, u16) = {
+ mlxsw_reg_mcam_mng_feature_cap_mask_dw0_get,
+ mlxsw_reg_mcam_mng_feature_cap_mask_dw1_get,
+ mlxsw_reg_mcam_mng_feature_cap_mask_dw2_get,
+ mlxsw_reg_mcam_mng_feature_cap_mask_dw3_get,
+ };
+
+ if (!WARN_ON_ONCE(dword >= ARRAY_SIZE(getters)))
+ *p_mng_feature_cap_val = getters[dword](payload, offset);
+}
+
/* MPSC - Monitoring Packet Sampling Configuration Register
* --------------------------------------------------------
* MPSC Register is used to configure the Packet Sampling mechanism.
@@@ -12953,7 -12810,6 +12944,7 @@@ static const struct mlxsw_reg_info *mlx
MLXSW_REG(pacl),
MLXSW_REG(pagt),
MLXSW_REG(ptar),
+ MLXSW_REG(pprr),
MLXSW_REG(ppbs),
MLXSW_REG(prcr),
MLXSW_REG(pefa),
@@@ -13036,11 -12892,10 +13027,11 @@@
MLXSW_REG(mcion),
MLXSW_REG(mtpps),
MLXSW_REG(mtutc),
- MLXSW_REG(mpsc),
MLXSW_REG(mcqi),
MLXSW_REG(mcc),
MLXSW_REG(mcda),
+ MLXSW_REG(mcam),
+ MLXSW_REG(mpsc),
MLXSW_REG(mgpc),
MLXSW_REG(mprs),
MLXSW_REG(mogcr),
diff --combined drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c
index b7f58605b6c7,ae2d6f12b799..cb746a43b24b
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c
@@@ -31,14 -31,12 +31,14 @@@ static struct mlxsw_afk_element_inst ml
static struct mlxsw_afk_element_inst mlxsw_sp_afk_element_info_ipv4_sip[] = {
MLXSW_AFK_ELEMENT_INST_BUF(SRC_IP_0_31, 0x00, 4),
+ MLXSW_AFK_ELEMENT_INST_U32(L4_PORT_RANGE, 0x04, 16, 16),
MLXSW_AFK_ELEMENT_INST_U32(IP_PROTO, 0x08, 0, 8),
MLXSW_AFK_ELEMENT_INST_U32(SRC_SYS_PORT, 0x0C, 0, 16),
};
static struct mlxsw_afk_element_inst mlxsw_sp_afk_element_info_ipv4_dip[] = {
MLXSW_AFK_ELEMENT_INST_BUF(DST_IP_0_31, 0x00, 4),
+ MLXSW_AFK_ELEMENT_INST_U32(L4_PORT_RANGE, 0x04, 16, 16),
MLXSW_AFK_ELEMENT_INST_U32(IP_PROTO, 0x08, 0, 8),
MLXSW_AFK_ELEMENT_INST_U32(SRC_SYS_PORT, 0x0C, 0, 16),
};
@@@ -173,7 -171,7 +173,7 @@@ static struct mlxsw_afk_element_inst ml
static struct mlxsw_afk_element_inst mlxsw_sp_afk_element_info_ipv4_4[] = {
MLXSW_AFK_ELEMENT_INST_U32(VIRT_ROUTER_LSB, 0x04, 24, 8),
- MLXSW_AFK_ELEMENT_INST_U32(VIRT_ROUTER_MSB, 0x00, 0, 3),
+ MLXSW_AFK_ELEMENT_INST_EXT_U32(VIRT_ROUTER_MSB, 0x00, 0, 3, 0, true),
};
static struct mlxsw_afk_element_inst mlxsw_sp_afk_element_info_ipv6_0[] = {
@@@ -207,7 -205,6 +207,7 @@@ static struct mlxsw_afk_element_inst ml
static struct mlxsw_afk_element_inst mlxsw_sp_afk_element_info_l4_2[] = {
MLXSW_AFK_ELEMENT_INST_U32(TCP_FLAGS, 0x04, 16, 9), /* TCP_CONTROL + TCP_ECN */
+ MLXSW_AFK_ELEMENT_INST_U32(L4_PORT_RANGE, 0x04, 0, 16),
};
static const struct mlxsw_afk_block mlxsw_sp2_afk_blocks[] = {
@@@ -324,7 -321,7 +324,7 @@@ static struct mlxsw_afk_element_inst ml
static struct mlxsw_afk_element_inst mlxsw_sp_afk_element_info_ipv4_4b[] = {
MLXSW_AFK_ELEMENT_INST_U32(VIRT_ROUTER_LSB, 0x04, 13, 8),
- MLXSW_AFK_ELEMENT_INST_EXT_U32(VIRT_ROUTER_MSB, 0x04, 21, 4, 0, true),
+ MLXSW_AFK_ELEMENT_INST_U32(VIRT_ROUTER_MSB, 0x04, 21, 4),
};
static struct mlxsw_afk_element_inst mlxsw_sp_afk_element_info_ipv6_2b[] = {
diff --combined drivers/net/ethernet/sfc/selftest.c
index e6d3bd4af044,563c1e317ce9..894fad0bb5ea
--- a/drivers/net/ethernet/sfc/selftest.c
+++ b/drivers/net/ethernet/sfc/selftest.c
@@@ -38,7 -38,8 +38,7 @@@
/*
* Loopback test packet structure
*
- * The self-test should stress every RSS vector, and unfortunately
- * Falcon only performs RSS on TCP/UDP packets.
+ * The self-test should stress every RSS vector.
*/
struct efx_loopback_payload {
char pad[2]; /* Ensures ip is 4-byte aligned */
@@@ -425,7 -426,7 +425,7 @@@ static int efx_begin_loopback(struct ef
for (i = 0; i < state->packet_count; i++) {
/* Allocate an skb, holding an extra reference for
* transmit completion counting */
- skb = alloc_skb(EFX_LOOPBACK_PAYLOAD_LEN, GFP_KERNEL);
+ skb = alloc_skb(sizeof(state->payload), GFP_KERNEL);
if (!skb)
return -ENOMEM;
state->skbs[i] = skb;
@@@ -583,6 -584,10 +583,6 @@@ efx_test_loopback(struct efx_tx_queue *
return 0;
}
-/* Wait for link up. On Falcon, we would prefer to rely on efx_monitor, but
- * any contention on the mac lock (via e.g. efx_mac_mcast_work) causes it
- * to delay and retry. Therefore, it's safer to just poll directly. Wait
- * for link up and any faults to dissipate. */
static int efx_wait_for_link(struct efx_nic *efx)
{
struct efx_link_state *link_state = &efx->link_state;
diff --combined drivers/net/phy/phy.c
index 8aec8e83038c,a9ecfdd19624..df54c137c5f5
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@@ -455,40 -455,6 +455,40 @@@ int phy_do_ioctl_running(struct net_dev
}
EXPORT_SYMBOL(phy_do_ioctl_running);
+/**
+ * __phy_hwtstamp_get - Get hardware timestamping configuration from PHY
+ *
+ * @phydev: the PHY device structure
+ * @config: structure holding the timestamping configuration
+ *
+ * Query the PHY device for its current hardware timestamping configuration.
+ */
+int __phy_hwtstamp_get(struct phy_device *phydev,
+ struct kernel_hwtstamp_config *config)
+{
+ if (!phydev)
+ return -ENODEV;
+
+ return phy_mii_ioctl(phydev, config->ifr, SIOCGHWTSTAMP);
+}
+
+/**
+ * __phy_hwtstamp_set - Modify PHY hardware timestamping configuration
+ *
+ * @phydev: the PHY device structure
+ * @config: structure holding the timestamping configuration
+ * @extack: netlink extended ack structure, for error reporting
+ */
+int __phy_hwtstamp_set(struct phy_device *phydev,
+ struct kernel_hwtstamp_config *config,
+ struct netlink_ext_ack *extack)
+{
+ if (!phydev)
+ return -ENODEV;
+
+ return phy_mii_ioctl(phydev, config->ifr, SIOCSHWTSTAMP);
+}
+
/**
* phy_queue_state_machine - Trigger the state machine to run soon
*
@@@ -1218,9 -1184,11 +1218,11 @@@ void phy_stop_machine(struct phy_devic
static void phy_process_error(struct phy_device *phydev)
{
- mutex_lock(&phydev->lock);
+ /* phydev->lock must be held for the state change to be safe */
+ if (!mutex_is_locked(&phydev->lock))
+ phydev_err(phydev, "PHY-device data unsafe context\n");
+
phydev->state = PHY_ERROR;
- mutex_unlock(&phydev->lock);
phy_trigger_machine(phydev);
}
@@@ -1229,7 -1197,9 +1231,9 @@@ static void phy_error_precise(struct ph
const void *func, int err)
{
WARN(1, "%pS: returned: %d\n", func, err);
+ mutex_lock(&phydev->lock);
phy_process_error(phydev);
+ mutex_unlock(&phydev->lock);
}
/**
@@@ -1238,8 -1208,7 +1242,7 @@@
*
* Moves the PHY to the ERROR state in response to a read
* or write error, and tells the controller the link is down.
- * Must not be called from interrupt context, or while the
- * phydev->lock is held.
+ * Must be called with phydev->lock held.
*/
void phy_error(struct phy_device *phydev)
{
diff --combined drivers/net/veth.c
index 8d5e12a5a845,ef8eacb596f7..da44bb1331ff
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@@ -26,7 -26,7 +26,7 @@@
#include <linux/ptr_ring.h>
#include <linux/bpf_trace.h>
#include <linux/net_tstamp.h>
-#include <net/page_pool.h>
+#include <net/page_pool/helpers.h>
#define DRV_NAME "veth"
#define DRV_VERSION "1.0"
@@@ -1861,10 -1861,7 +1861,7 @@@ static int veth_newlink(struct net *src
nla_peer = data[VETH_INFO_PEER];
ifmp = nla_data(nla_peer);
- err = rtnl_nla_parse_ifla(peer_tb,
- nla_data(nla_peer) + sizeof(struct ifinfomsg),
- nla_len(nla_peer) - sizeof(struct ifinfomsg),
- NULL);
+ err = rtnl_nla_parse_ifinfomsg(peer_tb, nla_peer, extack);
if (err < 0)
return err;
diff --combined include/net/inet_sock.h
index acbb93d7607a,491ceb7ebe5d..2de0e4d4a027
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@@ -194,13 -194,13 +194,13 @@@ struct rtable
* @inet_rcv_saddr - Bound local IPv4 addr
* @inet_dport - Destination port
* @inet_num - Local port
+ * @inet_flags - various atomic flags
* @inet_saddr - Sending source
* @uc_ttl - Unicast TTL
* @inet_sport - Source port
* @inet_id - ID counter for DF pkts
* @tos - TOS
* @mc_ttl - Multicasting TTL
- * @is_icsk - is this an inet_connection_sock?
* @uc_index - Unicast outgoing device index
* @mc_index - Multicast device index
* @mc_list - Group array
@@@ -218,88 -218,57 +218,88 @@@ struct inet_sock
#define inet_dport sk.__sk_common.skc_dport
#define inet_num sk.__sk_common.skc_num
+ unsigned long inet_flags;
__be32 inet_saddr;
__s16 uc_ttl;
- __u16 cmsg_flags;
+ __be16 inet_sport;
struct ip_options_rcu __rcu *inet_opt;
- __u16 inet_id;
+ atomic_t inet_id;
- __be16 inet_sport;
__u8 tos;
__u8 min_ttl;
__u8 mc_ttl;
__u8 pmtudisc;
- __u8 recverr:1,
- is_icsk:1,
- freebind:1,
- hdrincl:1,
- mc_loop:1,
- transparent:1,
- mc_all:1,
- nodefrag:1;
- __u8 bind_address_no_port:1,
- recverr_rfc4884:1,
- defer_connect:1; /* Indicates that fastopen_connect is set
- * and cookie exists so we defer connect
- * until first data frame is written
- */
__u8 rcv_tos;
__u8 convert_csum;
int uc_index;
int mc_index;
__be32 mc_addr;
- struct ip_mc_socklist __rcu *mc_list;
- struct inet_cork_full cork;
struct {
__u16 lo;
__u16 hi;
} local_port_range;
+
+ struct ip_mc_socklist __rcu *mc_list;
+ struct inet_cork_full cork;
};
#define IPCORK_OPT 1 /* ip-options has been held in ipcork.opt */
#define IPCORK_ALLFRAG 2 /* always fragment (for ipv6 for now) */
+enum {
+ INET_FLAGS_PKTINFO = 0,
+ INET_FLAGS_TTL = 1,
+ INET_FLAGS_TOS = 2,
+ INET_FLAGS_RECVOPTS = 3,
+ INET_FLAGS_RETOPTS = 4,
+ INET_FLAGS_PASSSEC = 5,
+ INET_FLAGS_ORIGDSTADDR = 6,
+ INET_FLAGS_CHECKSUM = 7,
+ INET_FLAGS_RECVFRAGSIZE = 8,
+
+ INET_FLAGS_RECVERR = 9,
+ INET_FLAGS_RECVERR_RFC4884 = 10,
+ INET_FLAGS_FREEBIND = 11,
+ INET_FLAGS_HDRINCL = 12,
+ INET_FLAGS_MC_LOOP = 13,
+ INET_FLAGS_MC_ALL = 14,
+ INET_FLAGS_TRANSPARENT = 15,
+ INET_FLAGS_IS_ICSK = 16,
+ INET_FLAGS_NODEFRAG = 17,
+ INET_FLAGS_BIND_ADDRESS_NO_PORT = 18,
+ INET_FLAGS_DEFER_CONNECT = 19,
+};
+
/* cmsg flags for inet */
-#define IP_CMSG_PKTINFO BIT(0)
-#define IP_CMSG_TTL BIT(1)
-#define IP_CMSG_TOS BIT(2)
-#define IP_CMSG_RECVOPTS BIT(3)
-#define IP_CMSG_RETOPTS BIT(4)
-#define IP_CMSG_PASSSEC BIT(5)
-#define IP_CMSG_ORIGDSTADDR BIT(6)
-#define IP_CMSG_CHECKSUM BIT(7)
-#define IP_CMSG_RECVFRAGSIZE BIT(8)
+#define IP_CMSG_PKTINFO BIT(INET_FLAGS_PKTINFO)
+#define IP_CMSG_TTL BIT(INET_FLAGS_TTL)
+#define IP_CMSG_TOS BIT(INET_FLAGS_TOS)
+#define IP_CMSG_RECVOPTS BIT(INET_FLAGS_RECVOPTS)
+#define IP_CMSG_RETOPTS BIT(INET_FLAGS_RETOPTS)
+#define IP_CMSG_PASSSEC BIT(INET_FLAGS_PASSSEC)
+#define IP_CMSG_ORIGDSTADDR BIT(INET_FLAGS_ORIGDSTADDR)
+#define IP_CMSG_CHECKSUM BIT(INET_FLAGS_CHECKSUM)
+#define IP_CMSG_RECVFRAGSIZE BIT(INET_FLAGS_RECVFRAGSIZE)
+
+#define IP_CMSG_ALL (IP_CMSG_PKTINFO | IP_CMSG_TTL | \
+ IP_CMSG_TOS | IP_CMSG_RECVOPTS | \
+ IP_CMSG_RETOPTS | IP_CMSG_PASSSEC | \
+ IP_CMSG_ORIGDSTADDR | IP_CMSG_CHECKSUM | \
+ IP_CMSG_RECVFRAGSIZE)
+
+static inline unsigned long inet_cmsg_flags(const struct inet_sock *inet)
+{
+ return READ_ONCE(inet->inet_flags) & IP_CMSG_ALL;
+}
+
+#define inet_test_bit(nr, sk) \
+ test_bit(INET_FLAGS_##nr, &inet_sk(sk)->inet_flags)
+#define inet_set_bit(nr, sk) \
+ set_bit(INET_FLAGS_##nr, &inet_sk(sk)->inet_flags)
+#define inet_clear_bit(nr, sk) \
+ clear_bit(INET_FLAGS_##nr, &inet_sk(sk)->inet_flags)
+#define inet_assign_bit(nr, sk, val) \
+ assign_bit(INET_FLAGS_##nr, &inet_sk(sk)->inet_flags, val)
static inline bool sk_is_inet(struct sock *sk)
{
@@@ -394,7 -363,7 +394,7 @@@ static inline __u8 inet_sk_flowi_flags(
{
__u8 flags = 0;
- if (inet_sk(sk)->transparent || inet_sk(sk)->hdrincl)
+ if (inet_test_bit(TRANSPARENT, sk) || inet_test_bit(HDRINCL, sk))
flags |= FLOWI_FLAG_ANYSRC;
return flags;
}
@@@ -420,8 -389,7 +420,8 @@@ static inline bool inet_can_nonlocal_bi
struct inet_sock *inet)
{
return READ_ONCE(net->ipv4.sysctl_ip_nonlocal_bind) ||
- inet->freebind || inet->transparent;
+ test_bit(INET_FLAGS_FREEBIND, &inet->inet_flags) ||
+ test_bit(INET_FLAGS_TRANSPARENT, &inet->inet_flags);
}
static inline bool inet_addr_valid_or_nonlocal(struct net *net,
diff --combined include/net/sock.h
index 2b9c0ec79e40,690e22139543..11d503417591
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@@ -1323,6 -1323,7 +1323,7 @@@ struct proto
/*
* Pressure flag: try to collapse.
* Technical note: it is used by multiple contexts non atomically.
+ * Make sure to use READ_ONCE()/WRITE_ONCE() for all reads/writes.
* All the __sk_mem_schedule() is of this nature: accounting
* is strict, actions are advisory and have some latency.
*/
@@@ -1339,7 -1340,6 +1340,7 @@@
struct kmem_cache *slab;
unsigned int obj_size;
+ unsigned int ipv6_pinfo_offset;
slab_flags_t slab_flags;
unsigned int useroffset; /* Usercopy region offset */
unsigned int usersize; /* Usercopy region size */
@@@ -1424,7 -1424,7 +1425,7 @@@ static inline bool sk_has_memory_pressu
static inline bool sk_under_global_memory_pressure(const struct sock *sk)
{
return sk->sk_prot->memory_pressure &&
- !!*sk->sk_prot->memory_pressure;
+ !!READ_ONCE(*sk->sk_prot->memory_pressure);
}
static inline bool sk_under_memory_pressure(const struct sock *sk)
@@@ -1436,7 -1436,7 +1437,7 @@@
mem_cgroup_under_socket_pressure(sk->sk_memcg))
return true;
- return !!*sk->sk_prot->memory_pressure;
+ return !!READ_ONCE(*sk->sk_prot->memory_pressure);
}
static inline long
@@@ -1513,7 -1513,7 +1514,7 @@@ proto_memory_pressure(struct proto *pro
{
if (!prot->memory_pressure)
return false;
- return !!*prot->memory_pressure;
+ return !!READ_ONCE(*prot->memory_pressure);
}
@@@ -2821,23 -2821,20 +2822,23 @@@ sk_is_refcounted(struct sock *sk
* skb_steal_sock - steal a socket from an sk_buff
* @skb: sk_buff to steal the socket from
* @refcounted: is set to true if the socket is reference-counted
+ * @prefetched: is set to true if the socket was assigned from bpf
*/
static inline struct sock *
-skb_steal_sock(struct sk_buff *skb, bool *refcounted)
+skb_steal_sock(struct sk_buff *skb, bool *refcounted, bool *prefetched)
{
if (skb->sk) {
struct sock *sk = skb->sk;
*refcounted = true;
- if (skb_sk_is_prefetched(skb))
+ *prefetched = skb_sk_is_prefetched(skb);
+ if (*prefetched)
*refcounted = sk_is_refcounted(sk);
skb->destructor = NULL;
skb->sk = NULL;
return sk;
}
+ *prefetched = false;
*refcounted = false;
return NULL;
}
diff --combined net/batman-adv/hard-interface.c
index 5a4ff9a81e74,24c9c0c3f316..96a412beab2d
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@@ -9,7 -9,6 +9,7 @@@
#include <linux/atomic.h>
#include <linux/byteorder/generic.h>
+#include <linux/compiler.h>
#include <linux/container_of.h>
#include <linux/errno.h>
#include <linux/gfp.h>
@@@ -631,7 -630,19 +631,19 @@@ out
*/
void batadv_update_min_mtu(struct net_device *soft_iface)
{
- soft_iface->mtu = batadv_hardif_min_mtu(soft_iface);
+ struct batadv_priv *bat_priv = netdev_priv(soft_iface);
+ int limit_mtu;
+ int mtu;
+
+ mtu = batadv_hardif_min_mtu(soft_iface);
+
+ if (bat_priv->mtu_set_by_user)
+ limit_mtu = bat_priv->mtu_set_by_user;
+ else
+ limit_mtu = ETH_DATA_LEN;
+
+ mtu = min(mtu, limit_mtu);
+ dev_set_mtu(soft_iface, mtu);
/* Check if the local translate table should be cleaned up to match a
* new (and smaller) MTU.
@@@ -700,14 -711,9 +712,14 @@@ int batadv_hardif_enable_interface(stru
struct batadv_priv *bat_priv;
__be16 ethertype = htons(ETH_P_BATMAN);
int max_header_len = batadv_max_header_len();
+ unsigned int required_mtu;
+ unsigned int hardif_mtu;
int ret;
- if (hard_iface->net_dev->mtu < ETH_MIN_MTU + max_header_len)
+ hardif_mtu = READ_ONCE(hard_iface->net_dev->mtu);
+ required_mtu = READ_ONCE(soft_iface->mtu) + max_header_len;
+
+ if (hardif_mtu < ETH_MIN_MTU + max_header_len)
return -EINVAL;
if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)
@@@ -740,18 -746,18 +752,18 @@@
hard_iface->net_dev->name);
if (atomic_read(&bat_priv->fragmentation) &&
- hard_iface->net_dev->mtu < ETH_DATA_LEN + max_header_len)
+ hardif_mtu < required_mtu)
batadv_info(hard_iface->soft_iface,
"The MTU of interface %s is too small (%i) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to %i would solve the problem.\n",
- hard_iface->net_dev->name, hard_iface->net_dev->mtu,
- ETH_DATA_LEN + max_header_len);
+ hard_iface->net_dev->name, hardif_mtu,
+ required_mtu);
if (!atomic_read(&bat_priv->fragmentation) &&
- hard_iface->net_dev->mtu < ETH_DATA_LEN + max_header_len)
+ hardif_mtu < required_mtu)
batadv_info(hard_iface->soft_iface,
"The MTU of interface %s is too small (%i) to handle the transport of batman-adv packets. If you experience problems getting traffic through try increasing the MTU to %i.\n",
- hard_iface->net_dev->name, hard_iface->net_dev->mtu,
- ETH_DATA_LEN + max_header_len);
+ hard_iface->net_dev->name, hardif_mtu,
+ required_mtu);
if (batadv_hardif_is_iface_up(hard_iface))
batadv_hardif_activate_interface(hard_iface);
diff --combined net/batman-adv/netlink.c
index d37872b34281,6efbc9275aec..0c64d81a7761
--- a/net/batman-adv/netlink.c
+++ b/net/batman-adv/netlink.c
@@@ -377,7 -377,7 +377,7 @@@ nla_put_failure
*
* Return: 0 on success, < 0 on error
*/
-int batadv_netlink_notify_mesh(struct batadv_priv *bat_priv)
+static int batadv_netlink_notify_mesh(struct batadv_priv *bat_priv)
{
struct sk_buff *msg;
int ret;
@@@ -495,7 -495,10 +495,10 @@@ static int batadv_netlink_set_mesh(stru
attr = info->attrs[BATADV_ATTR_FRAGMENTATION_ENABLED];
atomic_set(&bat_priv->fragmentation, !!nla_get_u8(attr));
+
+ rtnl_lock();
batadv_update_min_mtu(bat_priv->soft_iface);
+ rtnl_unlock();
}
if (info->attrs[BATADV_ATTR_GW_BANDWIDTH_DOWN]) {
@@@ -548,12 -551,15 +551,12 @@@
* algorithm in use implements the GW API
*/
- u32 sel_class_max = 0xffffffffu;
+ u32 sel_class_max = bat_priv->algo_ops->gw.sel_class_max;
u32 sel_class;
attr = info->attrs[BATADV_ATTR_GW_SEL_CLASS];
sel_class = nla_get_u32(attr);
- if (!bat_priv->algo_ops->gw.store_sel_class)
- sel_class_max = BATADV_TQ_MAX_VALUE;
-
if (sel_class >= 1 && sel_class <= sel_class_max) {
atomic_set(&bat_priv->gw.sel_class, sel_class);
batadv_gw_reselect(bat_priv);
@@@ -855,8 -861,8 +858,8 @@@ nla_put_failure
*
* Return: 0 on success, < 0 on error
*/
-int batadv_netlink_notify_hardif(struct batadv_priv *bat_priv,
- struct batadv_hard_iface *hard_iface)
+static int batadv_netlink_notify_hardif(struct batadv_priv *bat_priv,
+ struct batadv_hard_iface *hard_iface)
{
struct sk_buff *msg;
int ret;
@@@ -1070,8 -1076,8 +1073,8 @@@ nla_put_failure
*
* Return: 0 on success, < 0 on error
*/
-int batadv_netlink_notify_vlan(struct batadv_priv *bat_priv,
- struct batadv_softif_vlan *vlan)
+static int batadv_netlink_notify_vlan(struct batadv_priv *bat_priv,
+ struct batadv_softif_vlan *vlan)
{
struct sk_buff *msg;
int ret;
diff --combined net/batman-adv/soft-interface.c
index f7947fad06f2,85d00dc9ce32..1bf1232a4f75
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@@ -153,11 -153,14 +153,14 @@@ static int batadv_interface_set_mac_add
static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu)
{
+ struct batadv_priv *bat_priv = netdev_priv(dev);
+
/* check ranges */
- if (new_mtu < 68 || new_mtu > batadv_hardif_min_mtu(dev))
+ if (new_mtu < ETH_MIN_MTU || new_mtu > batadv_hardif_min_mtu(dev))
return -EINVAL;
dev->mtu = new_mtu;
+ bat_priv->mtu_set_by_user = new_mtu;
return 0;
}
diff --combined net/batman-adv/types.h
index 54c2b8fa48cc,cf1a0eafe3ab..17d5ea1d8e84
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@@ -1546,6 -1546,12 +1546,12 @@@ struct batadv_priv
/** @soft_iface: net device which holds this struct as private data */
struct net_device *soft_iface;
+ /**
+ * @mtu_set_by_user: MTU was set once by user
+ * protected by rtnl_lock
+ */
+ int mtu_set_by_user;
+
/**
* @bat_counters: mesh internal traffic statistic counters (see
* batadv_counters)
@@@ -2191,10 -2197,11 +2197,10 @@@ struct batadv_algo_gw_ops
void (*init_sel_class)(struct batadv_priv *bat_priv);
/**
- * @store_sel_class: parse and stores a new GW selection class
- * (optional)
+ * @sel_class_max: maximum allowed GW selection class
*/
- ssize_t (*store_sel_class)(struct batadv_priv *bat_priv, char *buff,
- size_t count);
+ u32 sel_class_max;
+
/**
* @get_best_gw_node: select the best GW from the list of available
* nodes (optional)
diff --combined net/core/rtnetlink.c
index 6d2180b8edb3,00c94d9622b4..4a2ec33bfb51
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@@ -61,7 -61,7 +61,7 @@@
#include "dev.h"
#define RTNL_MAX_TYPE 50
-#define RTNL_SLAVE_MAX_TYPE 43
+#define RTNL_SLAVE_MAX_TYPE 44
struct rtnl_link {
rtnl_doit_func doit;
@@@ -1273,6 -1273,7 +1273,6 @@@ static noinline_for_stack int rtnl_fill
static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb,
struct net_device *dev,
int vfs_num,
- struct nlattr *vfinfo,
u32 ext_filter_mask)
{
struct ifla_vf_rss_query_en vf_rss_query_en;
@@@ -1342,7 -1343,7 +1342,7 @@@
vf_trust.setting = ivi.trusted;
vf = nla_nest_start_noflag(skb, IFLA_VF_INFO);
if (!vf)
- goto nla_put_vfinfo_failure;
+ return -EMSGSIZE;
if (nla_put(skb, IFLA_VF_MAC, sizeof(vf_mac), &vf_mac) ||
nla_put(skb, IFLA_VF_BROADCAST, sizeof(vf_broadcast), &vf_broadcast) ||
nla_put(skb, IFLA_VF_VLAN, sizeof(vf_vlan), &vf_vlan) ||
@@@ -1413,6 -1414,8 +1413,6 @@@
nla_put_vf_failure:
nla_nest_cancel(skb, vf);
-nla_put_vfinfo_failure:
- nla_nest_cancel(skb, vfinfo);
return -EMSGSIZE;
}
@@@ -1438,10 -1441,8 +1438,10 @@@ static noinline_for_stack int rtnl_fill
return -EMSGSIZE;
for (i = 0; i < num_vfs; i++) {
- if (rtnl_fill_vfinfo(skb, dev, i, vfinfo, ext_filter_mask))
+ if (rtnl_fill_vfinfo(skb, dev, i, ext_filter_mask)) {
+ nla_nest_cancel(skb, vfinfo);
return -EMSGSIZE;
+ }
}
nla_nest_end(skb, vfinfo);
@@@ -2267,13 -2268,27 +2267,27 @@@ out_err
return err;
}
- int rtnl_nla_parse_ifla(struct nlattr **tb, const struct nlattr *head, int len,
- struct netlink_ext_ack *exterr)
+ int rtnl_nla_parse_ifinfomsg(struct nlattr **tb, const struct nlattr *nla_peer,
+ struct netlink_ext_ack *exterr)
{
- return nla_parse_deprecated(tb, IFLA_MAX, head, len, ifla_policy,
+ const struct ifinfomsg *ifmp;
+ const struct nlattr *attrs;
+ size_t len;
+
+ ifmp = nla_data(nla_peer);
+ attrs = nla_data(nla_peer) + sizeof(struct ifinfomsg);
+ len = nla_len(nla_peer) - sizeof(struct ifinfomsg);
+
+ if (ifmp->ifi_index < 0) {
+ NL_SET_ERR_MSG_ATTR(exterr, nla_peer,
+ "ifindex can't be negative");
+ return -EINVAL;
+ }
+
+ return nla_parse_deprecated(tb, IFLA_MAX, attrs, len, ifla_policy,
exterr);
}
- EXPORT_SYMBOL(rtnl_nla_parse_ifla);
+ EXPORT_SYMBOL(rtnl_nla_parse_ifinfomsg);
struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[])
{
@@@ -3546,6 -3561,9 +3560,9 @@@ replay
if (ifm->ifi_index > 0) {
link_specified = true;
dev = __dev_get_by_index(net, ifm->ifi_index);
+ } else if (ifm->ifi_index < 0) {
+ NL_SET_ERR_MSG(extack, "ifindex can't be negative");
+ return -EINVAL;
} else if (tb[IFLA_IFNAME] || tb[IFLA_ALT_IFNAME]) {
link_specified = true;
dev = rtnl_dev_get(net, tb);
diff --combined net/dccp/ipv4.c
index 8dd6837c476a,a545ad71201c..1591b061105a
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@@ -130,7 -130,7 +130,7 @@@ int dccp_v4_connect(struct sock *sk, st
inet->inet_daddr,
inet->inet_sport,
inet->inet_dport);
- inet->inet_id = get_random_u16();
+ atomic_set(&inet->inet_id, get_random_u16());
err = dccp_connect(sk);
rt = NULL;
@@@ -247,6 -247,7 +247,6 @@@ static int dccp_v4_err(struct sk_buff *
const u8 offset = iph->ihl << 2;
const struct dccp_hdr *dh;
struct dccp_sock *dp;
- struct inet_sock *inet;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
struct sock *sk;
@@@ -360,7 -361,8 +360,7 @@@
* --ANK (980905)
*/
- inet = inet_sk(sk);
- if (!sock_owned_by_user(sk) && inet->recverr) {
+ if (!sock_owned_by_user(sk) && inet_test_bit(RECVERR, sk)) {
sk->sk_err = err;
sk_error_report(sk);
} else { /* Only an error on timeout */
@@@ -430,7 -432,7 +430,7 @@@ struct sock *dccp_v4_request_recv_sock(
RCU_INIT_POINTER(newinet->inet_opt, rcu_dereference(ireq->ireq_opt));
newinet->mc_index = inet_iif(skb);
newinet->mc_ttl = ip_hdr(skb)->ttl;
- newinet->inet_id = get_random_u16();
+ atomic_set(&newinet->inet_id, get_random_u16());
if (dst == NULL && (dst = inet_csk_route_child_sock(sk, newsk, req)) == NULL)
goto put_and_exit;
@@@ -472,8 -474,7 +472,8 @@@ static struct dst_entry* dccp_v4_route_
.flowi4_oif = inet_iif(skb),
.daddr = iph->saddr,
.saddr = iph->daddr,
- .flowi4_tos = RT_CONN_FLAGS(sk),
+ .flowi4_tos = ip_sock_rt_tos(sk),
+ .flowi4_scope = ip_sock_rt_scope(sk),
.flowi4_proto = sk->sk_protocol,
.fl4_sport = dccp_hdr(skb)->dccph_dport,
.fl4_dport = dccp_hdr(skb)->dccph_sport,
diff --combined net/devlink/leftover.c
index 72ba8a716525,bfed7929a904..e2cd13958cc2
--- a/net/devlink/leftover.c
+++ b/net/devlink/leftover.c
@@@ -232,13 -232,13 +232,13 @@@ devlink_rate_node_get_from_attrs(struc
return devlink_rate_node_get_by_name(devlink, rate_node_name);
}
-struct devlink_rate *
+static struct devlink_rate *
devlink_rate_node_get_from_info(struct devlink *devlink, struct genl_info *info)
{
return devlink_rate_node_get_from_attrs(devlink, info->attrs);
}
-struct devlink_rate *
+static struct devlink_rate *
devlink_rate_get_from_info(struct devlink *devlink, struct genl_info *info)
{
struct nlattr **attrs = info->attrs;
@@@ -285,7 -285,7 +285,7 @@@ devlink_linecard_get_from_attrs(struct
return ERR_PTR(-EINVAL);
}
-struct devlink_linecard *
+static struct devlink_linecard *
devlink_linecard_get_from_info(struct devlink *devlink, struct genl_info *info)
{
return devlink_linecard_get_from_attrs(devlink, info->attrs);
@@@ -1005,8 -1005,8 +1005,8 @@@ static void devlink_rate_notify(struct
}
static int
-devlink_nl_cmd_rate_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
- struct netlink_callback *cb)
+devlink_nl_rate_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
+ struct netlink_callback *cb, int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_rate *devlink_rate;
@@@ -1022,7 -1022,8 +1022,7 @@@
continue;
}
err = devlink_nl_rate_fill(msg, devlink_rate, cmd, id,
- cb->nlh->nlmsg_seq,
- NLM_F_MULTI, NULL);
+ cb->nlh->nlmsg_seq, flags, NULL);
if (err) {
state->idx = idx;
break;
@@@ -1033,22 -1034,17 +1033,22 @@@
return err;
}
-const struct devlink_cmd devl_cmd_rate_get = {
- .dump_one = devlink_nl_cmd_rate_get_dump_one,
-};
+int devlink_nl_rate_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_rate_get_dump_one);
+}
-static int devlink_nl_cmd_rate_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_rate_get_doit(struct sk_buff *skb, struct genl_info *info)
{
- struct devlink_rate *devlink_rate = info->user_ptr[1];
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_rate *devlink_rate;
struct sk_buff *msg;
int err;
+ devlink_rate = devlink_rate_get_from_info(devlink, info);
+ if (IS_ERR(devlink_rate))
+ return PTR_ERR(devlink_rate);
+
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return -ENOMEM;
@@@ -1076,7 -1072,8 +1076,7 @@@ devlink_rate_is_parent_node(struct devl
return false;
}
-static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_port_get_doit(struct sk_buff *skb, struct genl_info *info)
{
struct devlink_port *devlink_port = info->user_ptr[1];
struct sk_buff *msg;
@@@ -1098,8 -1095,8 +1098,8 @@@
}
static int
-devlink_nl_cmd_port_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
- struct netlink_callback *cb)
+devlink_nl_port_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
+ struct netlink_callback *cb, int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_port *devlink_port;
@@@ -1110,8 -1107,8 +1110,8 @@@
err = devlink_nl_port_fill(msg, devlink_port,
DEVLINK_CMD_NEW,
NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NLM_F_MULTI, cb->extack);
+ cb->nlh->nlmsg_seq, flags,
+ cb->extack);
if (err) {
state->idx = port_index;
break;
@@@ -1121,10 -1118,9 +1121,10 @@@
return err;
}
-const struct devlink_cmd devl_cmd_port_get = {
- .dump_one = devlink_nl_cmd_port_get_dump_one,
-};
+int devlink_nl_port_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_port_get_dump_one);
+}
static int devlink_port_type_set(struct devlink_port *devlink_port,
enum devlink_port_type port_type)
@@@ -1633,16 -1629,11 +1633,16 @@@ static bool devlink_rate_set_ops_suppor
static int devlink_nl_cmd_rate_set_doit(struct sk_buff *skb,
struct genl_info *info)
{
- struct devlink_rate *devlink_rate = info->user_ptr[1];
- struct devlink *devlink = devlink_rate->devlink;
- const struct devlink_ops *ops = devlink->ops;
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_rate *devlink_rate;
+ const struct devlink_ops *ops;
int err;
+ devlink_rate = devlink_rate_get_from_info(devlink, info);
+ if (IS_ERR(devlink_rate))
+ return PTR_ERR(devlink_rate);
+
+ ops = devlink->ops;
if (!ops || !devlink_rate_set_ops_supported(ops, info, devlink_rate->type))
return -EOPNOTSUPP;
@@@ -1713,22 -1704,18 +1713,22 @@@ err_strdup
static int devlink_nl_cmd_rate_del_doit(struct sk_buff *skb,
struct genl_info *info)
{
- struct devlink_rate *rate_node = info->user_ptr[1];
- struct devlink *devlink = rate_node->devlink;
- const struct devlink_ops *ops = devlink->ops;
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_rate *rate_node;
int err;
+ rate_node = devlink_rate_node_get_from_info(devlink, info);
+ if (IS_ERR(rate_node))
+ return PTR_ERR(rate_node);
+
if (refcount_read(&rate_node->refcnt) > 1) {
NL_SET_ERR_MSG(info->extack, "Node has children. Cannot delete node.");
return -EBUSY;
}
devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL);
- err = ops->rate_node_del(rate_node, rate_node->priv, info->extack);
+ err = devlink->ops->rate_node_del(rate_node, rate_node->priv,
+ info->extack);
if (rate_node->parent)
refcount_dec(&rate_node->parent->refcnt);
list_del(&rate_node->list);
@@@ -1824,17 -1811,14 +1824,17 @@@ static void devlink_linecard_notify(str
msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL);
}
-static int devlink_nl_cmd_linecard_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_linecard_get_doit(struct sk_buff *skb, struct genl_info *info)
{
- struct devlink_linecard *linecard = info->user_ptr[1];
- struct devlink *devlink = linecard->devlink;
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_linecard *linecard;
struct sk_buff *msg;
int err;
+ linecard = devlink_linecard_get_from_info(devlink, info);
+ if (IS_ERR(linecard))
+ return PTR_ERR(linecard);
+
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
return -ENOMEM;
@@@ -1853,10 -1837,9 +1853,10 @@@
return genlmsg_reply(msg, info);
}
-static int devlink_nl_cmd_linecard_get_dump_one(struct sk_buff *msg,
- struct devlink *devlink,
- struct netlink_callback *cb)
+static int devlink_nl_linecard_get_dump_one(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct netlink_callback *cb,
+ int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_linecard *linecard;
@@@ -1872,7 -1855,8 +1872,7 @@@
err = devlink_nl_linecard_fill(msg, devlink, linecard,
DEVLINK_CMD_LINECARD_NEW,
NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NLM_F_MULTI,
+ cb->nlh->nlmsg_seq, flags,
cb->extack);
mutex_unlock(&linecard->state_lock);
if (err) {
@@@ -1885,11 -1869,9 +1885,11 @@@
return err;
}
-const struct devlink_cmd devl_cmd_linecard_get = {
- .dump_one = devlink_nl_cmd_linecard_get_dump_one,
-};
+int devlink_nl_linecard_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_linecard_get_dump_one);
+}
static struct devlink_linecard_type *
devlink_linecard_type_lookup(struct devlink_linecard *linecard,
@@@ -2026,15 -2008,10 +2026,15 @@@ out
static int devlink_nl_cmd_linecard_set_doit(struct sk_buff *skb,
struct genl_info *info)
{
- struct devlink_linecard *linecard = info->user_ptr[1];
struct netlink_ext_ack *extack = info->extack;
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_linecard *linecard;
int err;
+ linecard = devlink_linecard_get_from_info(devlink, info);
+ if (IS_ERR(linecard))
+ return PTR_ERR(linecard);
+
if (info->attrs[DEVLINK_ATTR_LINECARD_TYPE]) {
const char *type;
@@@ -2091,7 -2068,8 +2091,7 @@@ nla_put_failure
return -EMSGSIZE;
}
-static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_sb_get_doit(struct sk_buff *skb, struct genl_info *info)
{
struct devlink *devlink = info->user_ptr[0];
struct devlink_sb *devlink_sb;
@@@ -2118,8 -2096,8 +2118,8 @@@
}
static int
-devlink_nl_cmd_sb_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
- struct netlink_callback *cb)
+devlink_nl_sb_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
+ struct netlink_callback *cb, int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_sb *devlink_sb;
@@@ -2134,7 -2112,8 +2134,7 @@@
err = devlink_nl_sb_fill(msg, devlink, devlink_sb,
DEVLINK_CMD_SB_NEW,
NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NLM_F_MULTI);
+ cb->nlh->nlmsg_seq, flags);
if (err) {
state->idx = idx;
break;
@@@ -2145,10 -2124,9 +2145,10 @@@
return err;
}
-const struct devlink_cmd devl_cmd_sb_get = {
- .dump_one = devlink_nl_cmd_sb_get_dump_one,
-};
+int devlink_nl_sb_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_sb_get_dump_one);
+}
static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink,
struct devlink_sb *devlink_sb,
@@@ -2193,7 -2171,8 +2193,7 @@@ nla_put_failure
return -EMSGSIZE;
}
-static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_sb_pool_get_doit(struct sk_buff *skb, struct genl_info *info)
{
struct devlink *devlink = info->user_ptr[0];
struct devlink_sb *devlink_sb;
@@@ -2231,7 -2210,7 +2231,7 @@@
static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx,
struct devlink *devlink,
struct devlink_sb *devlink_sb,
- u32 portid, u32 seq)
+ u32 portid, u32 seq, int flags)
{
u16 pool_count = devlink_sb_pool_count(devlink_sb);
u16 pool_index;
@@@ -2246,7 -2225,7 +2246,7 @@@
devlink_sb,
pool_index,
DEVLINK_CMD_SB_POOL_NEW,
- portid, seq, NLM_F_MULTI);
+ portid, seq, flags);
if (err)
return err;
(*p_idx)++;
@@@ -2255,8 -2234,9 +2255,8 @@@
}
static int
-devlink_nl_cmd_sb_pool_get_dump_one(struct sk_buff *msg,
- struct devlink *devlink,
- struct netlink_callback *cb)
+devlink_nl_sb_pool_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
+ struct netlink_callback *cb, int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_sb *devlink_sb;
@@@ -2270,7 -2250,7 +2270,7 @@@
err = __sb_pool_get_dumpit(msg, state->idx, &idx,
devlink, devlink_sb,
NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq);
+ cb->nlh->nlmsg_seq, flags);
if (err == -EOPNOTSUPP) {
err = 0;
} else if (err) {
@@@ -2282,11 -2262,9 +2282,11 @@@
return err;
}
-const struct devlink_cmd devl_cmd_sb_pool_get = {
- .dump_one = devlink_nl_cmd_sb_pool_get_dump_one,
-};
+int devlink_nl_sb_pool_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_sb_pool_get_dump_one);
+}
static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index,
u16 pool_index, u32 size,
@@@ -2393,8 -2371,8 +2393,8 @@@ sb_occ_get_failure
return err;
}
-static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_sb_port_pool_get_doit(struct sk_buff *skb,
+ struct genl_info *info)
{
struct devlink_port *devlink_port = info->user_ptr[1];
struct devlink *devlink = devlink_port->devlink;
@@@ -2434,7 -2412,7 +2434,7 @@@
static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx,
struct devlink *devlink,
struct devlink_sb *devlink_sb,
- u32 portid, u32 seq)
+ u32 portid, u32 seq, int flags)
{
struct devlink_port *devlink_port;
u16 pool_count = devlink_sb_pool_count(devlink_sb);
@@@ -2453,7 -2431,8 +2453,7 @@@
devlink_sb,
pool_index,
DEVLINK_CMD_SB_PORT_POOL_NEW,
- portid, seq,
- NLM_F_MULTI);
+ portid, seq, flags);
if (err)
return err;
(*p_idx)++;
@@@ -2463,9 -2442,9 +2463,9 @@@
}
static int
-devlink_nl_cmd_sb_port_pool_get_dump_one(struct sk_buff *msg,
- struct devlink *devlink,
- struct netlink_callback *cb)
+devlink_nl_sb_port_pool_get_dump_one(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct netlink_callback *cb, int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_sb *devlink_sb;
@@@ -2479,7 -2458,7 +2479,7 @@@
err = __sb_port_pool_get_dumpit(msg, state->idx, &idx,
devlink, devlink_sb,
NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq);
+ cb->nlh->nlmsg_seq, flags);
if (err == -EOPNOTSUPP) {
err = 0;
} else if (err) {
@@@ -2491,11 -2470,9 +2491,11 @@@
return err;
}
-const struct devlink_cmd devl_cmd_sb_port_pool_get = {
- .dump_one = devlink_nl_cmd_sb_port_pool_get_dump_one,
-};
+int devlink_nl_sb_port_pool_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_sb_port_pool_get_dump_one);
+}
static int devlink_sb_port_pool_set(struct devlink_port *devlink_port,
unsigned int sb_index, u16 pool_index,
@@@ -2603,8 -2580,8 +2603,8 @@@ nla_put_failure
return -EMSGSIZE;
}
-static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_sb_tc_pool_bind_get_doit(struct sk_buff *skb,
+ struct genl_info *info)
{
struct devlink_port *devlink_port = info->user_ptr[1];
struct devlink *devlink = devlink_port->devlink;
@@@ -2651,7 -2628,7 +2651,7 @@@ static int __sb_tc_pool_bind_get_dumpit
int start, int *p_idx,
struct devlink *devlink,
struct devlink_sb *devlink_sb,
- u32 portid, u32 seq)
+ u32 portid, u32 seq, int flags)
{
struct devlink_port *devlink_port;
unsigned long port_index;
@@@ -2672,7 -2649,7 +2672,7 @@@
DEVLINK_SB_POOL_TYPE_INGRESS,
DEVLINK_CMD_SB_TC_POOL_BIND_NEW,
portid, seq,
- NLM_F_MULTI);
+ flags);
if (err)
return err;
(*p_idx)++;
@@@ -2690,7 -2667,7 +2690,7 @@@
DEVLINK_SB_POOL_TYPE_EGRESS,
DEVLINK_CMD_SB_TC_POOL_BIND_NEW,
portid, seq,
- NLM_F_MULTI);
+ flags);
if (err)
return err;
(*p_idx)++;
@@@ -2699,10 -2676,10 +2699,10 @@@
return 0;
}
-static int
-devlink_nl_cmd_sb_tc_pool_bind_get_dump_one(struct sk_buff *msg,
- struct devlink *devlink,
- struct netlink_callback *cb)
+static int devlink_nl_sb_tc_pool_bind_get_dump_one(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct netlink_callback *cb,
+ int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_sb *devlink_sb;
@@@ -2716,7 -2693,7 +2716,7 @@@
err = __sb_tc_pool_bind_get_dumpit(msg, state->idx, &idx,
devlink, devlink_sb,
NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq);
+ cb->nlh->nlmsg_seq, flags);
if (err == -EOPNOTSUPP) {
err = 0;
} else if (err) {
@@@ -2728,12 -2705,9 +2728,12 @@@
return err;
}
-const struct devlink_cmd devl_cmd_sb_tc_pool_bind_get = {
- .dump_one = devlink_nl_cmd_sb_tc_pool_bind_get_dump_one,
-};
+int devlink_nl_sb_tc_pool_bind_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb,
+ devlink_nl_sb_tc_pool_bind_get_dump_one);
+}
static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port,
unsigned int sb_index, u16 tc_index,
@@@ -3972,7 -3946,7 +3972,7 @@@ static int devlink_param_get(struct dev
const struct devlink_param *param,
struct devlink_param_gset_ctx *ctx)
{
- if (!param->get || devlink->reload_failed)
+ if (!param->get)
return -EOPNOTSUPP;
return param->get(devlink, param->id, ctx);
}
@@@ -3981,7 -3955,7 +3981,7 @@@ static int devlink_param_set(struct dev
const struct devlink_param *param,
struct devlink_param_gset_ctx *ctx)
{
- if (!param->set || devlink->reload_failed)
+ if (!param->set)
return -EOPNOTSUPP;
return param->set(devlink, param->id, ctx);
}
@@@ -4181,10 -4155,9 +4181,10 @@@ static void devlink_param_notify(struc
msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL);
}
-static int
-devlink_nl_cmd_param_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
- struct netlink_callback *cb)
+static int devlink_nl_param_get_dump_one(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct netlink_callback *cb,
+ int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_param_item *param_item;
@@@ -4195,7 -4168,8 +4195,7 @@@
err = devlink_nl_param_fill(msg, devlink, 0, param_item,
DEVLINK_CMD_PARAM_GET,
NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NLM_F_MULTI);
+ cb->nlh->nlmsg_seq, flags);
if (err == -EOPNOTSUPP) {
err = 0;
} else if (err) {
@@@ -4207,11 -4181,9 +4207,11 @@@
return err;
}
-const struct devlink_cmd devl_cmd_param_get = {
- .dump_one = devlink_nl_cmd_param_get_dump_one,
-};
+int devlink_nl_param_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_param_get_dump_one);
+}
static int
devlink_param_type_get_from_info(struct genl_info *info,
@@@ -4300,8 -4272,8 +4300,8 @@@ devlink_param_get_from_info(struct xarr
return devlink_param_find_by_name(params, param_name);
}
-static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_param_get_doit(struct sk_buff *skb,
+ struct genl_info *info)
{
struct devlink *devlink = info->user_ptr[0];
struct devlink_param_item *param_item;
@@@ -4798,7 -4770,8 +4798,7 @@@ static void devlink_region_snapshot_del
kfree(snapshot);
}
-static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_region_get_doit(struct sk_buff *skb, struct genl_info *info)
{
struct devlink *devlink = info->user_ptr[0];
struct devlink_port *port = NULL;
@@@ -4846,7 -4819,8 +4846,7 @@@
static int devlink_nl_cmd_region_get_port_dumpit(struct sk_buff *msg,
struct netlink_callback *cb,
struct devlink_port *port,
- int *idx,
- int start)
+ int *idx, int start, int flags)
{
struct devlink_region *region;
int err = 0;
@@@ -4860,7 -4834,7 +4860,7 @@@
DEVLINK_CMD_REGION_GET,
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
- NLM_F_MULTI, region);
+ flags, region);
if (err)
goto out;
(*idx)++;
@@@ -4870,10 -4844,9 +4870,10 @@@ out
return err;
}
-static int
-devlink_nl_cmd_region_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
- struct netlink_callback *cb)
+static int devlink_nl_region_get_dump_one(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct netlink_callback *cb,
+ int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_region *region;
@@@ -4890,8 -4863,8 +4890,8 @@@
err = devlink_nl_region_fill(msg, devlink,
DEVLINK_CMD_REGION_GET,
NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NLM_F_MULTI, region);
+ cb->nlh->nlmsg_seq, flags,
+ region);
if (err) {
state->idx = idx;
return err;
@@@ -4901,7 -4874,7 +4901,7 @@@
xa_for_each(&devlink->ports, port_index, port) {
err = devlink_nl_cmd_region_get_port_dumpit(msg, cb, port, &idx,
- state->idx);
+ state->idx, flags);
if (err) {
state->idx = idx;
return err;
@@@ -4911,11 -4884,9 +4911,11 @@@
return 0;
}
-const struct devlink_cmd devl_cmd_region_get = {
- .dump_one = devlink_nl_cmd_region_get_dump_one,
-};
+int devlink_nl_region_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_region_get_dump_one);
+}
static int devlink_nl_cmd_region_del(struct sk_buff *skb,
struct genl_info *info)
@@@ -5201,7 -5172,7 +5201,7 @@@ static int devlink_nl_cmd_region_read_d
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct nlattr *chunks_attr, *region_attr, *snapshot_attr;
u64 ret_offset, start_offset, end_offset = U64_MAX;
- struct nlattr **attrs = info->attrs;
+ struct nlattr **attrs = info->info.attrs;
struct devlink_port *port = NULL;
devlink_chunk_fill_t *region_cb;
struct devlink_region *region;
@@@ -5224,8 -5195,8 +5224,8 @@@
goto out_unlock;
}
- if (info->attrs[DEVLINK_ATTR_PORT_INDEX]) {
- index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]);
+ if (attrs[DEVLINK_ATTR_PORT_INDEX]) {
+ index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]);
port = devlink_port_get_by_index(devlink, index);
if (!port) {
@@@ -5661,7 -5632,8 +5661,7 @@@ nla_put_failure
return -EMSGSIZE;
}
-static int devlink_nl_cmd_trap_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_trap_get_doit(struct sk_buff *skb, struct genl_info *info)
{
struct netlink_ext_ack *extack = info->extack;
struct devlink *devlink = info->user_ptr[0];
@@@ -5695,9 -5667,9 +5695,9 @@@ err_trap_fill
return err;
}
-static int
-devlink_nl_cmd_trap_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
- struct netlink_callback *cb)
+static int devlink_nl_trap_get_dump_one(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct netlink_callback *cb, int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_trap_item *trap_item;
@@@ -5712,7 -5684,8 +5712,7 @@@
err = devlink_nl_trap_fill(msg, devlink, trap_item,
DEVLINK_CMD_TRAP_NEW,
NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NLM_F_MULTI);
+ cb->nlh->nlmsg_seq, flags);
if (err) {
state->idx = idx;
break;
@@@ -5723,10 -5696,9 +5723,10 @@@
return err;
}
-const struct devlink_cmd devl_cmd_trap_get = {
- .dump_one = devlink_nl_cmd_trap_get_dump_one,
-};
+int devlink_nl_trap_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_trap_get_dump_one);
+}
static int __devlink_trap_action_set(struct devlink *devlink,
struct devlink_trap_item *trap_item,
@@@ -5871,7 -5843,8 +5871,7 @@@ nla_put_failure
return -EMSGSIZE;
}
-static int devlink_nl_cmd_trap_group_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_trap_group_get_doit(struct sk_buff *skb, struct genl_info *info)
{
struct netlink_ext_ack *extack = info->extack;
struct devlink *devlink = info->user_ptr[0];
@@@ -5905,10 -5878,10 +5905,10 @@@ err_trap_group_fill
return err;
}
-static int
-devlink_nl_cmd_trap_group_get_dump_one(struct sk_buff *msg,
- struct devlink *devlink,
- struct netlink_callback *cb)
+static int devlink_nl_trap_group_get_dump_one(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct netlink_callback *cb,
+ int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_trap_group_item *group_item;
@@@ -5924,7 -5897,8 +5924,7 @@@
err = devlink_nl_trap_group_fill(msg, devlink, group_item,
DEVLINK_CMD_TRAP_GROUP_NEW,
NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NLM_F_MULTI);
+ cb->nlh->nlmsg_seq, flags);
if (err) {
state->idx = idx;
break;
@@@ -5935,11 -5909,9 +5935,11 @@@
return err;
}
-const struct devlink_cmd devl_cmd_trap_group_get = {
- .dump_one = devlink_nl_cmd_trap_group_get_dump_one,
-};
+int devlink_nl_trap_group_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_trap_group_get_dump_one);
+}
static int
__devlink_trap_group_action_set(struct devlink *devlink,
@@@ -6165,8 -6137,8 +6165,8 @@@ nla_put_failure
return -EMSGSIZE;
}
-static int devlink_nl_cmd_trap_policer_get_doit(struct sk_buff *skb,
- struct genl_info *info)
+int devlink_nl_trap_policer_get_doit(struct sk_buff *skb,
+ struct genl_info *info)
{
struct devlink_trap_policer_item *policer_item;
struct netlink_ext_ack *extack = info->extack;
@@@ -6200,10 -6172,10 +6200,10 @@@ err_trap_policer_fill
return err;
}
-static int
-devlink_nl_cmd_trap_policer_get_dump_one(struct sk_buff *msg,
- struct devlink *devlink,
- struct netlink_callback *cb)
+static int devlink_nl_trap_policer_get_dump_one(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct netlink_callback *cb,
+ int flags)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_trap_policer_item *policer_item;
@@@ -6218,7 -6190,8 +6218,7 @@@
err = devlink_nl_trap_policer_fill(msg, devlink, policer_item,
DEVLINK_CMD_TRAP_POLICER_NEW,
NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq,
- NLM_F_MULTI);
+ cb->nlh->nlmsg_seq, flags);
if (err) {
state->idx = idx;
break;
@@@ -6229,11 -6202,9 +6229,11 @@@
return err;
}
-const struct devlink_cmd devl_cmd_trap_policer_get = {
- .dump_one = devlink_nl_cmd_trap_policer_get_dump_one,
-};
+int devlink_nl_trap_policer_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_trap_policer_get_dump_one);
+}
static int
devlink_trap_policer_set(struct devlink *devlink,
@@@ -6307,7 -6278,22 +6307,7 @@@ static int devlink_nl_cmd_trap_policer_
return devlink_trap_policer_set(devlink, policer_item, info);
}
-const struct genl_small_ops devlink_nl_ops[56] = {
- {
- .cmd = DEVLINK_CMD_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = DEVLINK_CMD_PORT_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_port_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- /* can be retrieved by unprivileged users */
- },
+const struct genl_small_ops devlink_nl_small_ops[40] = {
{
.cmd = DEVLINK_CMD_PORT_SET,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
@@@ -6315,10 -6301,18 +6315,10 @@@
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
},
- {
- .cmd = DEVLINK_CMD_RATE_GET,
- .doit = devlink_nl_cmd_rate_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- .internal_flags = DEVLINK_NL_FLAG_NEED_RATE,
- /* can be retrieved by unprivileged users */
- },
{
.cmd = DEVLINK_CMD_RATE_SET,
.doit = devlink_nl_cmd_rate_set_doit,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_RATE,
},
{
.cmd = DEVLINK_CMD_RATE_NEW,
@@@ -6329,6 -6323,7 +6329,6 @@@
.cmd = DEVLINK_CMD_RATE_DEL,
.doit = devlink_nl_cmd_rate_del_doit,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_RATE_NODE,
},
{
.cmd = DEVLINK_CMD_PORT_SPLIT,
@@@ -6355,11 -6350,32 +6355,11 @@@
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
},
- {
- .cmd = DEVLINK_CMD_LINECARD_GET,
- .doit = devlink_nl_cmd_linecard_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD,
- /* can be retrieved by unprivileged users */
- },
+
{
.cmd = DEVLINK_CMD_LINECARD_SET,
.doit = devlink_nl_cmd_linecard_set_doit,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_LINECARD,
- },
- {
- .cmd = DEVLINK_CMD_SB_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_sb_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = DEVLINK_CMD_SB_POOL_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_sb_pool_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- /* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_SB_POOL_SET,
@@@ -6367,6 -6383,14 +6367,6 @@@
.doit = devlink_nl_cmd_sb_pool_set_doit,
.flags = GENL_ADMIN_PERM,
},
- {
- .cmd = DEVLINK_CMD_SB_PORT_POOL_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_sb_port_pool_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- /* can be retrieved by unprivileged users */
- },
{
.cmd = DEVLINK_CMD_SB_PORT_POOL_SET,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
@@@ -6374,6 -6398,14 +6374,6 @@@
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
},
- {
- .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- /* can be retrieved by unprivileged users */
- },
{
.cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
@@@ -6447,6 -6479,13 +6447,6 @@@
.doit = devlink_nl_cmd_reload,
.flags = GENL_ADMIN_PERM,
},
- {
- .cmd = DEVLINK_CMD_PARAM_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_param_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- /* can be retrieved by unprivileged users */
- },
{
.cmd = DEVLINK_CMD_PARAM_SET,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
@@@ -6468,6 -6507,13 +6468,6 @@@
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
},
- {
- .cmd = DEVLINK_CMD_REGION_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_region_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- .flags = GENL_ADMIN_PERM,
- },
{
.cmd = DEVLINK_CMD_REGION_NEW,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
@@@ -6487,6 -6533,21 +6487,6 @@@
.dumpit = devlink_nl_cmd_region_read_dumpit,
.flags = GENL_ADMIN_PERM,
},
- {
- .cmd = DEVLINK_CMD_INFO_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_info_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = DEVLINK_CMD_HEALTH_REPORTER_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_health_reporter_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
- /* can be retrieved by unprivileged users */
- },
{
.cmd = DEVLINK_CMD_HEALTH_REPORTER_SET,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
@@@ -6535,21 -6596,45 +6535,21 @@@
.doit = devlink_nl_cmd_flash_update,
.flags = GENL_ADMIN_PERM,
},
- {
- .cmd = DEVLINK_CMD_TRAP_GET,
- .doit = devlink_nl_cmd_trap_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- /* can be retrieved by unprivileged users */
- },
{
.cmd = DEVLINK_CMD_TRAP_SET,
.doit = devlink_nl_cmd_trap_set_doit,
.flags = GENL_ADMIN_PERM,
},
- {
- .cmd = DEVLINK_CMD_TRAP_GROUP_GET,
- .doit = devlink_nl_cmd_trap_group_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- /* can be retrieved by unprivileged users */
- },
{
.cmd = DEVLINK_CMD_TRAP_GROUP_SET,
.doit = devlink_nl_cmd_trap_group_set_doit,
.flags = GENL_ADMIN_PERM,
},
- {
- .cmd = DEVLINK_CMD_TRAP_POLICER_GET,
- .doit = devlink_nl_cmd_trap_policer_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- /* can be retrieved by unprivileged users */
- },
{
.cmd = DEVLINK_CMD_TRAP_POLICER_SET,
.doit = devlink_nl_cmd_trap_policer_set_doit,
.flags = GENL_ADMIN_PERM,
},
- {
- .cmd = DEVLINK_CMD_SELFTESTS_GET,
- .doit = devlink_nl_cmd_selftests_get_doit,
- .dumpit = devlink_nl_instance_iter_dumpit,
- /* can be retrieved by unprivileged users */
- },
{
.cmd = DEVLINK_CMD_SELFTESTS_RUN,
.doit = devlink_nl_cmd_selftests_run,
@@@ -6619,6 -6704,7 +6619,7 @@@ void devlink_notify_unregister(struct d
struct devlink_param_item *param_item;
struct devlink_trap_item *trap_item;
struct devlink_port *devlink_port;
+ struct devlink_linecard *linecard;
struct devlink_rate *rate_node;
struct devlink_region *region;
unsigned long port_index;
@@@ -6647,6 -6733,8 +6648,8 @@@
xa_for_each(&devlink->ports, port_index, devlink_port)
devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL);
+ list_for_each_entry_reverse(linecard, &devlink->linecard_list, list)
+ devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL);
devlink_notify(devlink, DEVLINK_CMD_DEL);
}
@@@ -6758,10 -6846,8 +6761,10 @@@ int devl_port_register_with_ops(struct
spin_lock_init(&devlink_port->type_lock);
INIT_LIST_HEAD(&devlink_port->reporter_list);
err = xa_insert(&devlink->ports, port_index, devlink_port, GFP_KERNEL);
- if (err)
+ if (err) {
+ devlink_port->registered = false;
return err;
+ }
INIT_DELAYED_WORK(&devlink_port->type_warn_dw, &devlink_port_type_warn);
devlink_port_type_warn_schedule(devlink_port);
diff --combined net/ipv4/af_inet.c
index e07ee60625d9,02736b83c303..3d2e30e20473
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@@ -187,13 -187,24 +187,13 @@@ static int inet_autobind(struct sock *s
return 0;
}
-/*
- * Move a socket into listening state.
- */
-int inet_listen(struct socket *sock, int backlog)
+int __inet_listen_sk(struct sock *sk, int backlog)
{
- struct sock *sk = sock->sk;
- unsigned char old_state;
+ unsigned char old_state = sk->sk_state;
int err, tcp_fastopen;
- lock_sock(sk);
-
- err = -EINVAL;
- if (sock->state != SS_UNCONNECTED || sock->type != SOCK_STREAM)
- goto out;
-
- old_state = sk->sk_state;
if (!((1 << old_state) & (TCPF_CLOSE | TCPF_LISTEN)))
- goto out;
+ return -EINVAL;
WRITE_ONCE(sk->sk_max_ack_backlog, backlog);
/* Really, if the socket is already in listen state
@@@ -216,27 -227,10 +216,27 @@@
err = inet_csk_listen_start(sk);
if (err)
- goto out;
+ return err;
+
tcp_call_bpf(sk, BPF_SOCK_OPS_TCP_LISTEN_CB, 0, NULL);
}
- err = 0;
+ return 0;
+}
+
+/*
+ * Move a socket into listening state.
+ */
+int inet_listen(struct socket *sock, int backlog)
+{
+ struct sock *sk = sock->sk;
+ int err = -EINVAL;
+
+ lock_sock(sk);
+
+ if (sock->state != SS_UNCONNECTED || sock->type != SOCK_STREAM)
+ goto out;
+
+ err = __inet_listen_sk(sk, backlog);
out:
release_sock(sk);
@@@ -331,14 -325,14 +331,14 @@@ lookup_protocol
sk->sk_reuse = SK_CAN_REUSE;
inet = inet_sk(sk);
- inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0;
+ inet_assign_bit(IS_ICSK, sk, INET_PROTOSW_ICSK & answer_flags);
- inet->nodefrag = 0;
+ inet_clear_bit(NODEFRAG, sk);
if (SOCK_RAW == sock->type) {
inet->inet_num = protocol;
if (IPPROTO_RAW == protocol)
- inet->hdrincl = 1;
+ inet_set_bit(HDRINCL, sk);
}
if (READ_ONCE(net->ipv4.sysctl_ip_no_pmtu_disc))
@@@ -346,7 -340,7 +346,7 @@@
else
inet->pmtudisc = IP_PMTUDISC_WANT;
- inet->inet_id = 0;
+ atomic_set(&inet->inet_id, 0);
sock_init_data(sock, sk);
@@@ -356,9 -350,9 +356,9 @@@
sk->sk_txrehash = READ_ONCE(net->core.sysctl_txrehash);
inet->uc_ttl = -1;
- inet->mc_loop = 1;
+ inet_set_bit(MC_LOOP, sk);
inet->mc_ttl = 1;
- inet->mc_all = 1;
+ inet_set_bit(MC_ALL, sk);
inet->mc_index = 0;
inet->mc_list = NULL;
inet->rcv_tos = 0;
@@@ -437,8 -431,9 +437,8 @@@ int inet_release(struct socket *sock
}
EXPORT_SYMBOL(inet_release);
-int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
+int inet_bind_sk(struct sock *sk, struct sockaddr *uaddr, int addr_len)
{
- struct sock *sk = sock->sk;
u32 flags = BIND_WITH_LOCK;
int err;
@@@ -459,11 -454,6 +459,11 @@@
return __inet_bind(sk, uaddr, addr_len, flags);
}
+
+int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
+{
+ return inet_bind_sk(sock->sk, uaddr, addr_len);
+}
EXPORT_SYMBOL(inet_bind);
int __inet_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len,
@@@ -529,7 -519,7 +529,7 @@@
inet->inet_saddr = 0; /* Use device */
/* Make sure we are allowed to bind here. */
- if (snum || !(inet->bind_address_no_port ||
+ if (snum || !(inet_test_bit(BIND_ADDRESS_NO_PORT, sk) ||
(flags & BIND_FORCE_ADDRESS_NO_PORT))) {
err = sk->sk_prot->get_port(sk, snum);
if (err) {
@@@ -656,7 -646,7 +656,7 @@@ int __inet_stream_connect(struct socke
err = -EISCONN;
goto out;
case SS_CONNECTING:
- if (inet_sk(sk)->defer_connect)
+ if (inet_test_bit(DEFER_CONNECT, sk))
err = is_sendmsg ? -EINPROGRESS : -EISCONN;
else
err = -EALREADY;
@@@ -679,7 -669,7 +679,7 @@@
sock->state = SS_CONNECTING;
- if (!err && inet_sk(sk)->defer_connect)
+ if (!err && inet_test_bit(DEFER_CONNECT, sk))
goto out;
/* Just entered SS_CONNECTING state; the only
diff --combined net/ipv4/tcp_ipv4.c
index 2a662d5f3072,2dbdc26da86e..27140e5cdc06
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@@ -57,7 -57,6 +57,7 @@@
#include <linux/init.h>
#include <linux/times.h>
#include <linux/slab.h>
+#include <linux/sched.h>
#include <net/net_namespace.h>
#include <net/icmp.h>
@@@ -313,7 -312,7 +313,7 @@@ int tcp_v4_connect(struct sock *sk, str
inet->inet_daddr));
}
- inet->inet_id = get_random_u16();
+ atomic_set(&inet->inet_id, get_random_u16());
if (tcp_fastopen_defer_connect(sk, &err))
return err;
@@@ -477,6 -476,7 +477,6 @@@ int tcp_v4_err(struct sk_buff *skb, u3
const struct iphdr *iph = (const struct iphdr *)skb->data;
struct tcphdr *th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
struct tcp_sock *tp;
- struct inet_sock *inet;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
struct sock *sk;
@@@ -624,8 -624,8 +624,8 @@@
* --ANK (980905)
*/
- inet = inet_sk(sk);
- if (!sock_owned_by_user(sk) && inet->recverr) {
+ if (!sock_owned_by_user(sk) &&
+ inet_test_bit(RECVERR, sk)) {
WRITE_ONCE(sk->sk_err, err);
sk_error_report(sk);
} else { /* Only an error on timeout */
@@@ -1596,7 -1596,7 +1596,7 @@@ struct sock *tcp_v4_syn_recv_sock(cons
inet_csk(newsk)->icsk_ext_hdr_len = 0;
if (inet_opt)
inet_csk(newsk)->icsk_ext_hdr_len = inet_opt->opt.optlen;
- newinet->inet_id = get_random_u16();
+ atomic_set(&newinet->inet_id, get_random_u16());
/* Set ToS of the new socket based upon the value of incoming SYN.
* ECT bits are set later in tcp_init_transfer().
@@@ -2448,8 -2448,6 +2448,8 @@@ static void *established_get_first(stru
struct hlist_nulls_node *node;
spinlock_t *lock = inet_ehash_lockp(hinfo, st->bucket);
+ cond_resched();
+
/* Lockless fast path for the common case of empty buckets */
if (empty_bucket(hinfo, st))
continue;
diff --combined net/netfilter/nf_tables_api.c
index f00a1dff85e8,eb8b1167dced..41b826dff6f5
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@@ -1373,7 -1373,7 +1373,7 @@@ static int nf_tables_newtable(struct sk
if (table == NULL)
goto err_kzalloc;
- table->validate_state = NFT_VALIDATE_SKIP;
+ table->validate_state = nft_net->validate_state;
table->name = nla_strdup(attr, GFP_KERNEL_ACCOUNT);
if (table->name == NULL)
goto err_strdup;
@@@ -3675,9 -3675,6 +3675,9 @@@ int nft_chain_validate(const struct nft
return -EMLINK;
list_for_each_entry(rule, &chain->rules, list) {
+ if (fatal_signal_pending(current))
+ return -EINTR;
+
if (!nft_is_active_next(ctx->net, rule))
continue;
@@@ -9054,9 -9051,8 +9054,8 @@@ static int nf_tables_validate(struct ne
return -EAGAIN;
nft_validate_state_update(table, NFT_VALIDATE_SKIP);
+ break;
}
-
- break;
}
return 0;
@@@ -9460,9 -9456,9 +9459,9 @@@ static void nft_trans_gc_work(struct wo
struct nft_trans_gc *trans, *next;
LIST_HEAD(trans_gc_list);
- spin_lock(&nf_tables_destroy_list_lock);
+ spin_lock(&nf_tables_gc_list_lock);
list_splice_init(&nf_tables_gc_list, &trans_gc_list);
- spin_unlock(&nf_tables_destroy_list_lock);
+ spin_unlock(&nf_tables_gc_list_lock);
list_for_each_entry_safe(trans, next, &trans_gc_list, list) {
list_del(&trans->list);
@@@ -9802,8 -9798,10 +9801,10 @@@ static int nf_tables_commit(struct net
}
/* 0. Validate ruleset, otherwise roll back for error reporting. */
- if (nf_tables_validate(net) < 0)
+ if (nf_tables_validate(net) < 0) {
+ nft_net->validate_state = NFT_VALIDATE_DO;
return -EAGAIN;
+ }
err = nft_flow_rule_offload_commit(net);
if (err < 0)
@@@ -10062,6 -10060,7 +10063,7 @@@
nf_tables_commit_audit_log(&adl, nft_net->base_seq);
nft_gc_seq_end(nft_net, gc_seq);
+ nft_net->validate_state = NFT_VALIDATE_SKIP;
nf_tables_commit_release(net);
return 0;
@@@ -10338,8 -10337,12 +10340,12 @@@ static int nf_tables_abort(struct net *
enum nfnl_abort_action action)
{
struct nftables_pernet *nft_net = nft_pernet(net);
- int ret = __nf_tables_abort(net, action);
+ unsigned int gc_seq;
+ int ret;
+ gc_seq = nft_gc_seq_begin(nft_net);
+ ret = __nf_tables_abort(net, action);
+ nft_gc_seq_end(nft_net, gc_seq);
mutex_unlock(&nft_net->commit_mutex);
return ret;
@@@ -10482,9 -10485,6 +10488,9 @@@ static int nf_tables_check_loops(const
if (ctx->chain == chain)
return -ELOOP;
+ if (fatal_signal_pending(current))
+ return -EINTR;
+
list_for_each_entry(rule, &chain->rules, list) {
nft_rule_for_each_expr(expr, last, rule) {
struct nft_immediate_expr *priv;
@@@ -11077,7 -11077,7 +11083,7 @@@ static int nft_rcv_nl_event(struct noti
gc_seq = nft_gc_seq_begin(nft_net);
if (!list_empty(&nf_tables_destroy_list))
- rcu_barrier();
+ nf_tables_trans_destroy_flush_work();
again:
list_for_each_entry(table, &nft_net->tables, list) {
if (nft_table_has_owner(table) &&
@@@ -11121,6 -11121,7 +11127,7 @@@ static int __net_init nf_tables_init_ne
mutex_init(&nft_net->commit_mutex);
nft_net->base_seq = 1;
nft_net->gc_seq = 0;
+ nft_net->validate_state = NFT_VALIDATE_SKIP;
return 0;
}
diff --combined net/sctp/socket.c
index 04b390892827,76f1bce49a8e..fd0631e70d46
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@@ -99,7 -99,7 +99,7 @@@ struct percpu_counter sctp_sockets_allo
static void sctp_enter_memory_pressure(struct sock *sk)
{
- sctp_memory_pressure = 1;
+ WRITE_ONCE(sctp_memory_pressure, 1);
}
@@@ -9479,10 -9479,10 +9479,10 @@@ void sctp_copy_sock(struct sock *newsk
newinet->inet_rcv_saddr = inet->inet_rcv_saddr;
newinet->inet_dport = htons(asoc->peer.port);
newinet->pmtudisc = inet->pmtudisc;
- newinet->inet_id = get_random_u16();
+ atomic_set(&newinet->inet_id, get_random_u16());
newinet->uc_ttl = inet->uc_ttl;
- newinet->mc_loop = 1;
+ inet_set_bit(MC_LOOP, newsk);
newinet->mc_ttl = 1;
newinet->mc_index = 0;
newinet->mc_list = NULL;
@@@ -9732,7 -9732,6 +9732,7 @@@ struct proto sctpv6_prot =
.unhash = sctp_unhash,
.no_autobind = true,
.obj_size = sizeof(struct sctp6_sock),
+ .ipv6_pinfo_offset = offsetof(struct sctp6_sock, inet6),
.useroffset = offsetof(struct sctp6_sock, sctp.subscribe),
.usersize = offsetof(struct sctp6_sock, sctp.initmsg) -
offsetof(struct sctp6_sock, sctp.subscribe) +
--
linux integration
1
0
[linux-merge]linux integration; branch, batadv/net, updated. v6.6-rc1
by postmasterï¼ open-mesh.org 24 Sep '23
by postmasterï¼ open-mesh.org 24 Sep '23
24 Sep '23
The following commit has been merged in the batadv/net branch:
commit 987aae75fc1041072941ffb622b45ce2359a99b9
Author: Sven Eckelmann <sven(a)narfation.org>
Date: Mon Aug 21 21:48:48 2023 +0200
batman-adv: Hold rtnl lock during MTU update via netlink
The automatic recalculation of the maximum allowed MTU is usually triggered
by code sections which are already rtnl lock protected by callers outside
of batman-adv. But when the fragmentation setting is changed via
batman-adv's own batadv genl family, then the rtnl lock is not yet taken.
But dev_set_mtu requires that the caller holds the rtnl lock because it
uses netdevice notifiers. And this code will then fail the check for this
lock:
RTNL: assertion failed at net/core/dev.c (1953)
Cc: stable(a)vger.kernel.org
Reported-by: syzbot+f8812454d9b3ac00d282(a)syzkaller.appspotmail.com
Fixes: c6a953cce8d0 ("batman-adv: Trigger events for auto adjusted MTU")
Signed-off-by: Sven Eckelmann <sven(a)narfation.org>
Reviewed-by: Simon Horman <horms(a)kernel.org>
Link: https://lore.kernel.org/r/20230821-batadv-missing-mtu-rtnl-lock-v1-1-1c5a7b…
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
diff --git a/net/batman-adv/netlink.c b/net/batman-adv/netlink.c
index ad5714f737be..6efbc9275aec 100644
--- a/net/batman-adv/netlink.c
+++ b/net/batman-adv/netlink.c
@@ -495,7 +495,10 @@ static int batadv_netlink_set_mesh(struct sk_buff *skb, struct genl_info *info)
attr = info->attrs[BATADV_ATTR_FRAGMENTATION_ENABLED];
atomic_set(&bat_priv->fragmentation, !!nla_get_u8(attr));
+
+ rtnl_lock();
batadv_update_min_mtu(bat_priv->soft_iface);
+ rtnl_unlock();
}
if (info->attrs[BATADV_ATTR_GW_BANDWIDTH_DOWN]) {
--
linux integration
1
0