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[batman-adv] master: batman-adv: Move CRC16 dependency to BATMAN_ADV_BLA (adb5bec)
by postmaster＠open-mesh.org 14 Nov '18

14 Nov '18

Repository : ssh://git@open-mesh.org/batman-adv On branch : master >--------------------------------------------------------------- commit adb5bec236cbce66cafcceec5707f512fe990ab1 Author: Sven Eckelmann <sven(a)narfation.org> Date: Sun Oct 14 17:16:14 2018 +0200 batman-adv: Move CRC16 dependency to BATMAN_ADV_BLA The commit c5e7a06a2961 ("batman-adv: use CRC32C instead of CRC16 in TT code") switched the translation table code from crc16 to crc32c. The (optional) bridge loop avoidance code is the only user of this function. batman-adv should only select CRC16 when it is actually using it. Signed-off-by: Sven Eckelmann <sven(a)narfation.org> >--------------------------------------------------------------- adb5bec236cbce66cafcceec5707f512fe990ab1 net/batman-adv/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/batman-adv/Kconfig b/net/batman-adv/Kconfig index f75816f..449ab2e 100644 --- a/net/batman-adv/Kconfig +++ b/net/batman-adv/Kconfig @@ -22,7 +22,6 @@ config BATMAN_ADV tristate "B.A.T.M.A.N. Advanced Meshing Protocol" depends on NET - select CRC16 select LIBCRC32C help B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is @@ -48,6 +47,7 @@ config BATMAN_ADV_BATMAN_V config BATMAN_ADV_BLA bool "Bridge Loop Avoidance" depends on BATMAN_ADV && INET + select CRC16 default y help This option enables BLA (Bridge Loop Avoidance), a mechanism

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[batman-adv] master: batman-adv: Fix description for BATMAN_ADV_DEBUG (ec8bc64)
by postmaster＠open-mesh.org 14 Nov '18

14 Nov '18

Repository : ssh://git@open-mesh.org/batman-adv On branch : master >--------------------------------------------------------------- commit ec8bc647de019de76fd1968004be140bafa3c243 Author: Sven Eckelmann <sven(a)narfation.org> Date: Sun Oct 21 11:30:32 2018 +0200 batman-adv: Fix description for BATMAN_ADV_DEBUG The debug messages of batman-adv are not printed to the kernel log at all but can be stored (depending on the compile setting) in the tracing buffer or the batadv specific log buffer. There is also no debug module parameter but a batadv netdev specific log_level setting to enable/disable different classes of debug messages at runtime. Signed-off-by: Sven Eckelmann <sven(a)narfation.org> >--------------------------------------------------------------- ec8bc647de019de76fd1968004be140bafa3c243 net/batman-adv/Kconfig | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/net/batman-adv/Kconfig b/net/batman-adv/Kconfig index d3ab471..d6b9455 100644 --- a/net/batman-adv/Kconfig +++ b/net/batman-adv/Kconfig @@ -104,8 +104,9 @@ config BATMAN_ADV_DEBUG help This is an option for use by developers; most people should say N here. This enables compilation of support for - outputting debugging information to the kernel log. The - output is controlled via the module parameter debug. + outputting debugging information to the debugfs log or tracing + buffer. The output is controlled via the batadv netdev specific + log_level setting. config BATMAN_ADV_TRACING bool "B.A.T.M.A.N. tracing support"

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[batman-adv] master: batman-adv: Add inconsistent multicast netlink dump detection (06c82b7)
by postmaster＠open-mesh.org 14 Nov '18

14 Nov '18

Repository : ssh://git@open-mesh.org/batman-adv On branch : master >--------------------------------------------------------------- commit 06c82b7b15b1b640f4e978f9599971e1883f4aaf Author: Sven Eckelmann <sven(a)narfation.org> Date: Tue Oct 30 22:01:30 2018 +0100 batman-adv: Add inconsistent multicast netlink dump detection The netlink dump functionality transfers a large number of entries from the kernel to userspace. It is rather likely that the transfer has to interrupted and later continued. During that time, it can happen that either new entries are added or removed. The userspace could than either receive some entries multiple times or miss entries. Commit 670dc2833d14 ("netlink: advertise incomplete dumps") introduced a mechanism to inform userspace about this problem. Userspace can then decide whether it is necessary or not to retry dumping the information again. The netlink dump functions have to be switched to exclusive locks to avoid changes while the current message is prepared. The already existing generation sequence counter from the hash helper can be used for this simple hash. Reported-by: Matthias Schiffer <mschiffer(a)universe-factory.net> Signed-off-by: Sven Eckelmann <sven(a)narfation.org> >--------------------------------------------------------------- 06c82b7b15b1b640f4e978f9599971e1883f4aaf net/batman-adv/multicast.c | 51 +++++++++++++++++++++++++--------------------- 1 file changed, 28 insertions(+), 23 deletions(-) diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c index 86725d7..69244e4 100644 --- a/net/batman-adv/multicast.c +++ b/net/batman-adv/multicast.c @@ -1365,22 +1365,26 @@ int batadv_mcast_mesh_info_put(struct sk_buff *msg, * to a netlink socket * @msg: buffer for the message * @portid: netlink port - * @seq: Sequence number of netlink message + * @cb: Control block containing additional options * @orig_node: originator to dump the multicast flags of * * Return: 0 or error code. */ static int -batadv_mcast_flags_dump_entry(struct sk_buff *msg, u32 portid, u32 seq, +batadv_mcast_flags_dump_entry(struct sk_buff *msg, u32 portid, + struct netlink_callback *cb, struct batadv_orig_node *orig_node) { void *hdr; - hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, - NLM_F_MULTI, BATADV_CMD_GET_MCAST_FLAGS); + hdr = genlmsg_put(msg, portid, cb->nlh->nlmsg_seq, + &batadv_netlink_family, NLM_F_MULTI, + BATADV_CMD_GET_MCAST_FLAGS); if (!hdr) return -ENOBUFS; + genl_dump_check_consistent(cb, hdr); + if (nla_put(msg, BATADV_ATTR_ORIG_ADDRESS, ETH_ALEN, orig_node->orig)) { genlmsg_cancel(msg, hdr); @@ -1405,21 +1409,26 @@ batadv_mcast_flags_dump_entry(struct sk_buff *msg, u32 portid, u32 seq, * table to a netlink socket * @msg: buffer for the message * @portid: netlink port - * @seq: Sequence number of netlink message - * @head: bucket to dump + * @cb: Control block containing additional options + * @hash: hash to dump + * @bucket: bucket index to dump * @idx_skip: How many entries to skip * * Return: 0 or error code. */ static int -batadv_mcast_flags_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq, - struct hlist_head *head, long *idx_skip) +batadv_mcast_flags_dump_bucket(struct sk_buff *msg, u32 portid, + struct netlink_callback *cb, + struct batadv_hashtable *hash, + unsigned int bucket, long *idx_skip) { struct batadv_orig_node *orig_node; long idx = 0; - rcu_read_lock(); - hlist_for_each_entry_rcu(orig_node, head, hash_entry) { + spin_lock_bh(&hash->list_locks[bucket]); + cb->seq = atomic_read(&hash->generation) << 1 | 1; + + hlist_for_each_entry(orig_node, &hash->table[bucket], hash_entry) { if (!test_bit(BATADV_ORIG_CAPA_HAS_MCAST, &orig_node->capa_initialized)) continue; @@ -1427,9 +1436,8 @@ batadv_mcast_flags_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq, if (idx < *idx_skip) goto skip; - if (batadv_mcast_flags_dump_entry(msg, portid, seq, - orig_node)) { - rcu_read_unlock(); + if (batadv_mcast_flags_dump_entry(msg, portid, cb, orig_node)) { + spin_unlock_bh(&hash->list_locks[bucket]); *idx_skip = idx; return -EMSGSIZE; @@ -1438,7 +1446,7 @@ batadv_mcast_flags_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq, skip: idx++; } - rcu_read_unlock(); + spin_unlock_bh(&hash->list_locks[bucket]); return 0; } @@ -1447,7 +1455,7 @@ skip: * __batadv_mcast_flags_dump() - dump multicast flags table to a netlink socket * @msg: buffer for the message * @portid: netlink port - * @seq: Sequence number of netlink message + * @cb: Control block containing additional options * @bat_priv: the bat priv with all the soft interface information * @bucket: current bucket to dump * @idx: index in current bucket to the next entry to dump @@ -1455,19 +1463,17 @@ skip: * Return: 0 or error code. */ static int -__batadv_mcast_flags_dump(struct sk_buff *msg, u32 portid, u32 seq, +__batadv_mcast_flags_dump(struct sk_buff *msg, u32 portid, + struct netlink_callback *cb, struct batadv_priv *bat_priv, long *bucket, long *idx) { struct batadv_hashtable *hash = bat_priv->orig_hash; long bucket_tmp = *bucket; - struct hlist_head *head; long idx_tmp = *idx; while (bucket_tmp < hash->size) { - head = &hash->table[bucket_tmp]; - - if (batadv_mcast_flags_dump_bucket(msg, portid, seq, head, - &idx_tmp)) + if (batadv_mcast_flags_dump_bucket(msg, portid, cb, hash, + *bucket, &idx_tmp)) break; bucket_tmp++; @@ -1550,8 +1556,7 @@ int batadv_mcast_flags_dump(struct sk_buff *msg, struct netlink_callback *cb) return ret; bat_priv = netdev_priv(primary_if->soft_iface); - ret = __batadv_mcast_flags_dump(msg, portid, cb->nlh->nlmsg_seq, - bat_priv, bucket, idx); + ret = __batadv_mcast_flags_dump(msg, portid, cb, bat_priv, bucket, idx); batadv_hardif_put(primary_if); return ret;

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[batman-adv] master: batman-adv: Add inconsistent claim netlink dump detection (529bce0)
by postmaster＠open-mesh.org 14 Nov '18

14 Nov '18

Repository : ssh://git@open-mesh.org/batman-adv On branch : master >--------------------------------------------------------------- commit 529bce0db7d7eff8d7e21365f2187510dd74649c Author: Sven Eckelmann <sven(a)narfation.org> Date: Tue Oct 30 22:01:27 2018 +0100 batman-adv: Add inconsistent claim netlink dump detection The netlink dump functionality transfers a large number of entries from the kernel to userspace. It is rather likely that the transfer has to interrupted and later continued. During that time, it can happen that either new entries are added or removed. The userspace could than either receive some entries multiple times or miss entries. Commit 670dc2833d14 ("netlink: advertise incomplete dumps") introduced a mechanism to inform userspace about this problem. Userspace can then decide whether it is necessary or not to retry dumping the information again. The netlink dump functions have to be switched to exclusive locks to avoid changes while the current message is prepared. The already existing generation sequence counter from the hash helper can be used for this simple hash. Reported-by: Matthias Schiffer <mschiffer(a)universe-factory.net> Signed-off-by: Sven Eckelmann <sven(a)narfation.org> >--------------------------------------------------------------- 529bce0db7d7eff8d7e21365f2187510dd74649c net/batman-adv/bridge_loop_avoidance.c | 41 +++++++++++++++++++--------------- 1 file changed, 23 insertions(+), 18 deletions(-) diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c index 9f37473..5fdde29 100644 --- a/net/batman-adv/bridge_loop_avoidance.c +++ b/net/batman-adv/bridge_loop_avoidance.c @@ -2094,14 +2094,15 @@ out: * to a netlink socket * @msg: buffer for the message * @portid: netlink port - * @seq: Sequence number of netlink message + * @cb: Control block containing additional options * @primary_if: primary interface * @claim: entry to dump * * Return: 0 or error code. */ static int -batadv_bla_claim_dump_entry(struct sk_buff *msg, u32 portid, u32 seq, +batadv_bla_claim_dump_entry(struct sk_buff *msg, u32 portid, + struct netlink_callback *cb, struct batadv_hard_iface *primary_if, struct batadv_bla_claim *claim) { @@ -2111,13 +2112,16 @@ batadv_bla_claim_dump_entry(struct sk_buff *msg, u32 portid, u32 seq, void *hdr; int ret = -EINVAL; - hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, - NLM_F_MULTI, BATADV_CMD_GET_BLA_CLAIM); + hdr = genlmsg_put(msg, portid, cb->nlh->nlmsg_seq, + &batadv_netlink_family, NLM_F_MULTI, + BATADV_CMD_GET_BLA_CLAIM); if (!hdr) { ret = -ENOBUFS; goto out; } + genl_dump_check_consistent(cb, hdr); + is_own = batadv_compare_eth(claim->backbone_gw->orig, primary_addr); @@ -2153,28 +2157,33 @@ out: * to a netlink socket * @msg: buffer for the message * @portid: netlink port - * @seq: Sequence number of netlink message + * @cb: Control block containing additional options * @primary_if: primary interface - * @head: bucket to dump + * @hash: hash to dump + * @bucket: bucket index to dump * @idx_skip: How many entries to skip * * Return: always 0. */ static int -batadv_bla_claim_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq, +batadv_bla_claim_dump_bucket(struct sk_buff *msg, u32 portid, + struct netlink_callback *cb, struct batadv_hard_iface *primary_if, - struct hlist_head *head, int *idx_skip) + struct batadv_hashtable *hash, unsigned int bucket, + int *idx_skip) { struct batadv_bla_claim *claim; int idx = 0; int ret = 0; - rcu_read_lock(); - hlist_for_each_entry_rcu(claim, head, hash_entry) { + spin_lock_bh(&hash->list_locks[bucket]); + cb->seq = atomic_read(&hash->generation) << 1 | 1; + + hlist_for_each_entry(claim, &hash->table[bucket], hash_entry) { if (idx++ < *idx_skip) continue; - ret = batadv_bla_claim_dump_entry(msg, portid, seq, + ret = batadv_bla_claim_dump_entry(msg, portid, cb, primary_if, claim); if (ret) { *idx_skip = idx - 1; @@ -2184,7 +2193,7 @@ batadv_bla_claim_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq, *idx_skip = 0; unlock: - rcu_read_unlock(); + spin_unlock_bh(&hash->list_locks[bucket]); return ret; } @@ -2204,7 +2213,6 @@ int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb) struct batadv_hashtable *hash; struct batadv_priv *bat_priv; int bucket = cb->args[0]; - struct hlist_head *head; int idx = cb->args[1]; int ifindex; int ret = 0; @@ -2230,11 +2238,8 @@ int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb) } while (bucket < hash->size) { - head = &hash->table[bucket]; - - if (batadv_bla_claim_dump_bucket(msg, portid, - cb->nlh->nlmsg_seq, - primary_if, head, &idx)) + if (batadv_bla_claim_dump_bucket(msg, portid, cb, primary_if, + hash, bucket, &idx)) break; bucket++; }

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[batman-adv] master: batman-adv: Improve includes for trace functionality (6adbbfe)
by postmaster＠open-mesh.org 14 Nov '18

14 Nov '18

Repository : ssh://git@open-mesh.org/batman-adv On branch : master >--------------------------------------------------------------- commit 6adbbfeb496a4b2d883a951c3e80baea96d77b83 Author: Sven Eckelmann <sven(a)narfation.org> Date: Sun Oct 21 11:30:30 2018 +0200 batman-adv: Improve includes for trace functionality The batadv_dbg trace event uses different functionality and datastructures which are not directly associated with the trace infrastructure. It should not be expected that the trace headers indirectly provide them and instead include the required headers directly. Signed-off-by: Sven Eckelmann <sven(a)narfation.org> >--------------------------------------------------------------- 6adbbfeb496a4b2d883a951c3e80baea96d77b83 net/batman-adv/trace.c | 2 -- net/batman-adv/trace.h | 6 ++++++ 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/net/batman-adv/trace.c b/net/batman-adv/trace.c index 3d57f99..8e10242 100644 --- a/net/batman-adv/trace.c +++ b/net/batman-adv/trace.c @@ -16,7 +16,5 @@ * along with this program; if not, see <http://www.gnu.org/licenses/>. */ -#include <linux/module.h> - #define CREATE_TRACE_POINTS #include "trace.h" diff --git a/net/batman-adv/trace.h b/net/batman-adv/trace.h index 3acda26..104784b 100644 --- a/net/batman-adv/trace.h +++ b/net/batman-adv/trace.h @@ -21,7 +21,13 @@ #include "main.h" +#include <linux/bug.h> +#include <linux/kernel.h> +#include <linux/netdevice.h> +#include <linux/percpu.h> +#include <linux/printk.h> #include <linux/tracepoint.h> +#include <linux/types.h> #undef TRACE_SYSTEM #define TRACE_SYSTEM batadv

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[batman-adv] master: batman-adv: Add inconsistent gateway netlink dump detection (2fd9ca4)
by postmaster＠open-mesh.org 14 Nov '18

14 Nov '18

Repository : ssh://git@open-mesh.org/batman-adv On branch : master >--------------------------------------------------------------- commit 2fd9ca45b7cb2a4ecaeeba8be18500b6e77a9e8e Author: Sven Eckelmann <sven(a)narfation.org> Date: Tue Oct 30 22:01:23 2018 +0100 batman-adv: Add inconsistent gateway netlink dump detection The netlink dump functionality transfers a large number of entries from the kernel to userspace. It is rather likely that the transfer has to interrupted and later continued. During that time, it can happen that either new entries are added or removed. The userspace could than either receive some entries multiple times or miss entries. Commit 670dc2833d14 ("netlink: advertise incomplete dumps") introduced a mechanism to inform userspace about this problem. Userspace can then decide whether it is necessary or not to retry dumping the information again. The netlink dump functions have to be switched to exclusive locks to avoid changes while the current message is prepared. And an external generation sequence counter is introduced which tracks all modifications of the list. Reported-by: Matthias Schiffer <mschiffer(a)universe-factory.net> Signed-off-by: Sven Eckelmann <sven(a)narfation.org> >--------------------------------------------------------------- 2fd9ca45b7cb2a4ecaeeba8be18500b6e77a9e8e net/batman-adv/bat_iv_ogm.c | 24 +++++++++++++++--------- net/batman-adv/bat_v.c | 26 +++++++++++++++++--------- net/batman-adv/gateway_client.c | 3 +++ net/batman-adv/main.c | 2 ++ net/batman-adv/types.h | 5 ++++- 5 files changed, 41 insertions(+), 19 deletions(-) diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c index 1d31ac8..f97e566 100644 --- a/net/batman-adv/bat_iv_ogm.c +++ b/net/batman-adv/bat_iv_ogm.c @@ -2584,13 +2584,14 @@ static void batadv_iv_gw_print(struct batadv_priv *bat_priv, * batadv_iv_gw_dump_entry() - Dump a gateway into a message * @msg: Netlink message to dump into * @portid: Port making netlink request - * @seq: Sequence number of netlink message + * @cb: Control block containing additional options * @bat_priv: The bat priv with all the soft interface information * @gw_node: Gateway to be dumped * * Return: Error code, or 0 on success */ -static int batadv_iv_gw_dump_entry(struct sk_buff *msg, u32 portid, u32 seq, +static int batadv_iv_gw_dump_entry(struct sk_buff *msg, u32 portid, + struct netlink_callback *cb, struct batadv_priv *bat_priv, struct batadv_gw_node *gw_node) { @@ -2610,13 +2611,16 @@ static int batadv_iv_gw_dump_entry(struct sk_buff *msg, u32 portid, u32 seq, curr_gw = batadv_gw_get_selected_gw_node(bat_priv); - hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, - NLM_F_MULTI, BATADV_CMD_GET_GATEWAYS); + hdr = genlmsg_put(msg, portid, cb->nlh->nlmsg_seq, + &batadv_netlink_family, NLM_F_MULTI, + BATADV_CMD_GET_GATEWAYS); if (!hdr) { ret = -ENOBUFS; goto out; } + genl_dump_check_consistent(cb, hdr); + ret = -EMSGSIZE; if (curr_gw == gw_node) @@ -2667,13 +2671,15 @@ static void batadv_iv_gw_dump(struct sk_buff *msg, struct netlink_callback *cb, int idx_skip = cb->args[0]; int idx = 0; - rcu_read_lock(); - hlist_for_each_entry_rcu(gw_node, &bat_priv->gw.gateway_list, list) { + spin_lock_bh(&bat_priv->gw.list_lock); + cb->seq = bat_priv->gw.generation << 1 | 1; + + hlist_for_each_entry(gw_node, &bat_priv->gw.gateway_list, list) { if (idx++ < idx_skip) continue; - if (batadv_iv_gw_dump_entry(msg, portid, cb->nlh->nlmsg_seq, - bat_priv, gw_node)) { + if (batadv_iv_gw_dump_entry(msg, portid, cb, bat_priv, + gw_node)) { idx_skip = idx - 1; goto unlock; } @@ -2681,7 +2687,7 @@ static void batadv_iv_gw_dump(struct sk_buff *msg, struct netlink_callback *cb, idx_skip = idx; unlock: - rcu_read_unlock(); + spin_unlock_bh(&bat_priv->gw.list_lock); cb->args[0] = idx_skip; } diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c index 6baec4e..90e33f8 100644 --- a/net/batman-adv/bat_v.c +++ b/net/batman-adv/bat_v.c @@ -27,11 +27,13 @@ #include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/kref.h> +#include <linux/list.h> #include <linux/netdevice.h> #include <linux/netlink.h> #include <linux/rculist.h> #include <linux/rcupdate.h> #include <linux/seq_file.h> +#include <linux/spinlock.h> #include <linux/stddef.h> #include <linux/types.h> #include <linux/workqueue.h> @@ -915,13 +917,14 @@ static void batadv_v_gw_print(struct batadv_priv *bat_priv, * batadv_v_gw_dump_entry() - Dump a gateway into a message * @msg: Netlink message to dump into * @portid: Port making netlink request - * @seq: Sequence number of netlink message + * @cb: Control block containing additional options * @bat_priv: The bat priv with all the soft interface information * @gw_node: Gateway to be dumped * * Return: Error code, or 0 on success */ -static int batadv_v_gw_dump_entry(struct sk_buff *msg, u32 portid, u32 seq, +static int batadv_v_gw_dump_entry(struct sk_buff *msg, u32 portid, + struct netlink_callback *cb, struct batadv_priv *bat_priv, struct batadv_gw_node *gw_node) { @@ -941,13 +944,16 @@ static int batadv_v_gw_dump_entry(struct sk_buff *msg, u32 portid, u32 seq, curr_gw = batadv_gw_get_selected_gw_node(bat_priv); - hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, - NLM_F_MULTI, BATADV_CMD_GET_GATEWAYS); + hdr = genlmsg_put(msg, portid, cb->nlh->nlmsg_seq, + &batadv_netlink_family, NLM_F_MULTI, + BATADV_CMD_GET_GATEWAYS); if (!hdr) { ret = -ENOBUFS; goto out; } + genl_dump_check_consistent(cb, hdr); + ret = -EMSGSIZE; if (curr_gw == gw_node) { @@ -1018,13 +1024,15 @@ static void batadv_v_gw_dump(struct sk_buff *msg, struct netlink_callback *cb, int idx_skip = cb->args[0]; int idx = 0; - rcu_read_lock(); - hlist_for_each_entry_rcu(gw_node, &bat_priv->gw.gateway_list, list) { + spin_lock_bh(&bat_priv->gw.list_lock); + cb->seq = bat_priv->gw.generation << 1 | 1; + + hlist_for_each_entry(gw_node, &bat_priv->gw.gateway_list, list) { if (idx++ < idx_skip) continue; - if (batadv_v_gw_dump_entry(msg, portid, cb->nlh->nlmsg_seq, - bat_priv, gw_node)) { + if (batadv_v_gw_dump_entry(msg, portid, cb, bat_priv, + gw_node)) { idx_skip = idx - 1; goto unlock; } @@ -1032,7 +1040,7 @@ static void batadv_v_gw_dump(struct sk_buff *msg, struct netlink_callback *cb, idx_skip = idx; unlock: - rcu_read_unlock(); + spin_unlock_bh(&bat_priv->gw.list_lock); cb->args[0] = idx_skip; } diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c index 140c61a..9d8e5ed 100644 --- a/net/batman-adv/gateway_client.c +++ b/net/batman-adv/gateway_client.c @@ -377,6 +377,7 @@ static void batadv_gw_node_add(struct batadv_priv *bat_priv, kref_get(&gw_node->refcount); hlist_add_head_rcu(&gw_node->list, &bat_priv->gw.gateway_list); + bat_priv->gw.generation++; batadv_dbg(BATADV_DBG_BATMAN, bat_priv, "Found new gateway %pM -> gw bandwidth: %u.%u/%u.%u MBit\n", @@ -472,6 +473,7 @@ void batadv_gw_node_update(struct batadv_priv *bat_priv, if (!hlist_unhashed(&gw_node->list)) { hlist_del_init_rcu(&gw_node->list); batadv_gw_node_put(gw_node); + bat_priv->gw.generation++; } spin_unlock_bh(&bat_priv->gw.list_lock); @@ -518,6 +520,7 @@ void batadv_gw_node_free(struct batadv_priv *bat_priv) &bat_priv->gw.gateway_list, list) { hlist_del_init_rcu(&gw_node->list); batadv_gw_node_put(gw_node); + bat_priv->gw.generation++; } spin_unlock_bh(&bat_priv->gw.list_lock); } diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c index 69c0d85..c75e478 100644 --- a/net/batman-adv/main.c +++ b/net/batman-adv/main.c @@ -186,6 +186,8 @@ int batadv_mesh_init(struct net_device *soft_iface) INIT_HLIST_HEAD(&bat_priv->softif_vlan_list); INIT_HLIST_HEAD(&bat_priv->tp_list); + bat_priv->gw.generation = 0; + ret = batadv_v_mesh_init(bat_priv); if (ret < 0) goto err; diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h index 45b5592..cbe17da 100644 --- a/net/batman-adv/types.h +++ b/net/batman-adv/types.h @@ -1096,12 +1096,15 @@ struct batadv_priv_gw { /** @gateway_list: list of available gateway nodes */ struct hlist_head gateway_list; - /** @list_lock: lock protecting gateway_list & curr_gw */ + /** @list_lock: lock protecting gateway_list, curr_gw, generation */ spinlock_t list_lock; /** @curr_gw: pointer to currently selected gateway node */ struct batadv_gw_node __rcu *curr_gw; + /** @generation: current (generation) sequence number */ + unsigned int generation; + /** * @mode: gateway operation: off, client or server (see batadv_gw_modes) */

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[linux-merge]linux integration; annotated tag, batadv-net-for-davem-20181114, created. batadv-net-for-davem-20181114
by postmaster＠open-mesh.org 14 Nov '18

14 Nov '18

The annotated tag, batadv-net-for-davem-20181114 has been created at 222f60c03647286f81d8fb94e9ca89677e3f536c (tag) tagging d7d8bbb40a5b1f682ee6589e212934f4c6b8ad60 (commit) replaces v4.20-rc1 tagged by Simon Wunderlich on Wed Nov 14 14:29:39 2018 +0100 - Shortlog ------------------------------------------------------------ Here are two batman-adv bugfixes: - Explicitly pad short ELP packets with zeros, by Sven Eckelmann - Fix packet size calculation when merging fragments, by Sven Eckelmann -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEE1ilQI7G+y+fdhnrfoSvjmEKSnqEFAlvsI0MWHHN3QHNpbW9u d3VuZGVybGljaC5kZQAKCRChK+OYQpKeobY0D/9N/v4LVF1vU/mYHPyQA6a8tXxp 9iCazA0jTMym48gvupMVSw0O6VrWZDnqUp6QY/jeB1Hfi188ouJgeY7zMNTnOGSF jlMd+8dIsrJfX0Rg10s9t8mWHtR0Lzfs2TRTwIbjvvFXSOLSCmDFBCKYZNhJBcZm gPDhLVS13klVQud78eTAciIXTIBCk3mp92auvwu/7yYSAi1RHUtMuov6qM6oqXDQ ZaQKlzQ/N1yoh+NwkhIRUPtWZ1Q/8coQk48E8/mxmdCMWf9OKHoxx4TeScG6YDWH x6qSqKIlMHNRJtwt+SF0X4xVqyKJ28jEH8d2lfbm5G6Dvgv2WCGQV8FQ2hjNtlfd VatKnRW94uCMVvaB2r1dN8zx0Dozi3fR8QCo75Wovi9gwKjg3Xe6rNMxJqwwuWNO 4Q9YbiYpT6uZsCb9j3Ym/ConnQ8QMn4PA+qC5iH+4p0e0JfWdKsFGXphzSZzDOBN 3cfODCSO3PyVt/rmnnls21hznkPBn5dKtYCFeyBvtAjddgrzEgME6kB6mJ/mtO/7 1Ks4scMmyto03OpIExBPz8VsUDhsgGPMA2Brq9cfjhfA/Sl7OIJXEbVctnC6GK7H OOuF6QAiN+W92gb+EGZCl3pEirRzZcQsWAgWnR8jM0joMQTHgZLqVDQIYaBPxbuB wFoGWYX14Z5ImSlkyg== =nlBu -----END PGP SIGNATURE----- Sven Eckelmann (2): batman-adv: Use explicit tvlv padding for ELP packets batman-adv: Expand merged fragment buffer for full packet ----------------------------------------------------------------------- -- linux integration

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[alfred] tag 'v2018.4' created
by postmaster＠open-mesh.org 14 Nov '18

14 Nov '18

Repository : ssh://git@open-mesh.org/alfred New tag : v2018.4 Referencing: d1a9530af47bbee5876f13b53487008f2d515a99

1 0

[alfred] master: alfred: Update CHANGELOG for upcoming release (db0b214)
by postmaster＠open-mesh.org 14 Nov '18

14 Nov '18

Repository : ssh://git@open-mesh.org/alfred On branch : master >--------------------------------------------------------------- commit db0b214b1d3f61269b6665fff83c8ac9a19cf9d8 Author: Simon Wunderlich <sw(a)simonwunderlich.de> Date: Wed Nov 14 14:16:45 2018 +0100 alfred: Update CHANGELOG for upcoming release Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de> >--------------------------------------------------------------- db0b214b1d3f61269b6665fff83c8ac9a19cf9d8 CHANGELOG.rst | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/CHANGELOG.rst b/CHANGELOG.rst index 9b89b27..59c691a 100644 --- a/CHANGELOG.rst +++ b/CHANGELOG.rst @@ -1,5 +1,13 @@ .. SPDX-License-Identifier: GPL-2.0 +2018.4 (2018-11-14) +=================== + +* bugs squashed: + + - fixed detection of own IPv4 packets + - use manual IPv4 ARP requests to retrieve MAC of neighbors + 2018.3 (2018-09-14) ===================

1 0

[alfred] master: alfred: Start new development cycle (0e15933)
by postmaster＠open-mesh.org 14 Nov '18

14 Nov '18

Repository : ssh://git@open-mesh.org/alfred On branch : master >--------------------------------------------------------------- commit 0e15933433610714f59b7ca1a251ab21e37a8e43 Author: Simon Wunderlich <sw(a)simonwunderlich.de> Date: Wed Nov 14 14:17:21 2018 +0100 alfred: Start new development cycle Signed-off-by: Simon Wunderlich <sw(a)simonwunderlich.de> >--------------------------------------------------------------- 0e15933433610714f59b7ca1a251ab21e37a8e43 alfred.h | 2 +- gpsd/alfred-gpsd.h | 2 +- vis/vis.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/alfred.h b/alfred.h index eecfdfd..487e97a 100644 --- a/alfred.h +++ b/alfred.h @@ -21,7 +21,7 @@ */ #ifndef SOURCE_VERSION -#define SOURCE_VERSION "2018.4" +#define SOURCE_VERSION "2019.0" #endif #include <net/ethernet.h> diff --git a/gpsd/alfred-gpsd.h b/gpsd/alfred-gpsd.h index 8c487e5..537686d 100644 --- a/gpsd/alfred-gpsd.h +++ b/gpsd/alfred-gpsd.h @@ -39,7 +39,7 @@ #include "../list.h" #ifndef SOURCE_VERSION -#define SOURCE_VERSION "2018.4" +#define SOURCE_VERSION "2019.0" #endif #define ALFRED_SOCK_PATH_DEFAULT "/var/run/alfred.sock" diff --git a/vis/vis.h b/vis/vis.h index e2c5696..575d210 100644 --- a/vis/vis.h +++ b/vis/vis.h @@ -28,7 +28,7 @@ #ifndef SOURCE_VERSION -#define SOURCE_VERSION "2018.4" +#define SOURCE_VERSION "2019.0" #endif #define ALFRED_SOCK_PATH_DEFAULT "/var/run/alfred.sock"

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