May 2012 - commits - lists.open-mesh.org

batctl; branch, master, updated. v2012.1.0-29-gcc5ae88

by postmaster＠open-mesh.org

The following commit has been merged in the master branch: commit cc5ae885b6910fe38a92863b46bf5c715f3447eb Merge: 340fc4b9bbf0b6168b3254e3a399ab070a29e999 ea3699d183fa47c3229125fc2fa150614bbfb013 Author: Marek Lindner <lindner_marek(a)yahoo.de> Date: Tue May 22 12:46:39 2012 +0800 Merge branch 'next' diff --combined packet.h index 44eed60,0ee1af7..c90219c --- a/packet.h +++ b/packet.h @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: * * Marek Lindner, Simon Wunderlich * @@@ -15,6 -16,7 +15,6 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA - * */ #ifndef _NET_BATMAN_ADV_PACKET_H_ @@@ -23,22 -25,14 +23,14 @@@ #define ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */ enum bat_packettype { - BAT_IV_OGM = 0x01, - BAT_ICMP = 0x02, - BAT_UNICAST = 0x03, - BAT_BCAST = 0x04, - BAT_VIS = 0x05, - BAT_UNICAST_FRAG = 0x06, - BAT_TT_QUERY = 0x07, - BAT_ROAM_ADV = 0x08, - BAT_UNICAST_4ADDR = 0x09 - }; - - enum bat_subtype { - BAT_P_DATA = 0x01, - BAT_P_DAT_DHT_GET = 0x02, - BAT_P_DAT_DHT_PUT = 0x03, - BAT_P_DAT_CACHE_REPLY = 0x04 + BAT_IV_OGM = 0x01, + BAT_ICMP = 0x02, + BAT_UNICAST = 0x03, + BAT_BCAST = 0x04, + BAT_VIS = 0x05, + BAT_UNICAST_FRAG = 0x06, + BAT_TT_QUERY = 0x07, + BAT_ROAM_ADV = 0x08 }; /* this file is included by batctl which needs these defines */ @@@ -87,8 -81,7 +79,8 @@@ enum tt_query_flags /* TT_CLIENT flags. * Flags from 1 to 1 << 7 are sent on the wire, while flags from 1 << 8 to - * 1 << 15 are used for local computation only */ + * 1 << 15 are used for local computation only + */ enum tt_client_flags { TT_CLIENT_DEL = 1 << 0, TT_CLIENT_ROAM = 1 << 1, @@@ -112,7 -105,7 +104,7 @@@ enum bla_claimframe struct bla_claim_dst { uint8_t magic[3]; /* FF:43:05 */ uint8_t type; /* bla_claimframe */ - uint16_t group; /* group id */ + __be16 group; /* group id */ } __packed; struct batman_header { @@@ -124,14 -117,14 +116,14 @@@ struct batman_ogm_packet { struct batman_header header; uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */ - uint32_t seqno; + __be32 seqno; uint8_t orig[ETH_ALEN]; uint8_t prev_sender[ETH_ALEN]; uint8_t gw_flags; /* flags related to gateway class */ uint8_t tq; uint8_t tt_num_changes; uint8_t ttvn; /* translation table version number */ - uint16_t tt_crc; + __be16 tt_crc; } __packed; #define BATMAN_OGM_HLEN sizeof(struct batman_ogm_packet) @@@ -141,7 -134,7 +133,7 @@@ struct icmp_packet uint8_t msg_type; /* see ICMP message types above */ uint8_t dst[ETH_ALEN]; uint8_t orig[ETH_ALEN]; - uint16_t seqno; + __be16 seqno; uint8_t uid; uint8_t reserved; } __packed; @@@ -149,14 -142,13 +141,14 @@@ #define BAT_RR_LEN 16 /* icmp_packet_rr must start with all fields from imcp_packet - * as this is assumed by code that handles ICMP packets */ + * as this is assumed by code that handles ICMP packets + */ struct icmp_packet_rr { struct batman_header header; uint8_t msg_type; /* see ICMP message types above */ uint8_t dst[ETH_ALEN]; uint8_t orig[ETH_ALEN]; - uint16_t seqno; + __be16 seqno; uint8_t uid; uint8_t rr_cur; uint8_t rr[BAT_RR_LEN][ETH_ALEN]; @@@ -168,12 -160,6 +160,6 @@@ struct unicast_packet uint8_t dest[ETH_ALEN]; } __packed; - struct unicast_4addr_packet { - struct unicast_packet u; - uint8_t src[ETH_ALEN]; - uint8_t subtype; - } __packed; - struct unicast_frag_packet { struct batman_header header; uint8_t ttvn; /* destination translation table version number */ @@@ -181,20 -167,20 +167,20 @@@ uint8_t flags; uint8_t align; uint8_t orig[ETH_ALEN]; - uint16_t seqno; + __be16 seqno; } __packed; struct bcast_packet { struct batman_header header; uint8_t reserved; - uint32_t seqno; + __be32 seqno; uint8_t orig[ETH_ALEN]; } __packed; struct vis_packet { struct batman_header header; uint8_t vis_type; /* which type of vis-participant sent this? */ - uint32_t seqno; /* sequence number */ + __be32 seqno; /* sequence number */ uint8_t entries; /* number of entries behind this struct */ uint8_t reserved; uint8_t vis_orig[ETH_ALEN]; /* originator reporting its neighbors */ @@@ -206,8 -192,7 +192,8 @@@ struct tt_query_packet struct batman_header header; /* the flag field is a combination of: * - TT_REQUEST or TT_RESPONSE - * - TT_FULL_TABLE */ + * - TT_FULL_TABLE + */ uint8_t flags; uint8_t dst[ETH_ALEN]; uint8_t src[ETH_ALEN]; @@@ -215,15 -200,13 +201,15 @@@ * if TT_REQUEST: ttvn that triggered the * request * if TT_RESPONSE: new ttvn for the src - * orig_node */ + * orig_node + */ uint8_t ttvn; /* tt_data field is: * if TT_REQUEST: crc associated with the * ttvn - * if TT_RESPONSE: table_size */ - uint16_t tt_data; + * if TT_RESPONSE: table_size + */ + __be16 tt_data; } __packed; struct roam_adv_packet { -- batctl

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batctl; branch, next, updated. v2012.1.0-21-gea3699d

by postmaster＠open-mesh.org

The following commit has been merged in the next branch: commit ea3699d183fa47c3229125fc2fa150614bbfb013 Author: Sven Eckelmann <sven(a)narfation.org> Date: Thu May 17 17:18:33 2012 +0200 batctl: Revert Distributed ARP Table David S. Miller did not like the idea of batman-adv modifying and reading the ARP table and refused to pull this feature. It has to be rewritten after an acceptable solution was found. This reverts following commits: * batman-adv: add UNICAST_4ADDR packet type * batman-adv: add a new log level for DAT debugging * batman-adv: Distributed ARP Table - create DHT helper functions * batman-adv: Distributed ARP Table - add ARP parsing functions * batman-adv: Distributed ARP Table - add snooping functions for ARP messages * batman-adv: Distributed ARP Table - increase default soft_iface ARP table timeout * batman-adv: Distributed ARP Table - add compile option Signed-off-by: Sven Eckelmann <sven(a)narfation.org> diff --git a/packet.h b/packet.h index 307dbb3..0ee1af7 100644 --- a/packet.h +++ b/packet.h @@ -25,22 +25,14 @@ #define ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */ enum bat_packettype { - BAT_IV_OGM = 0x01, - BAT_ICMP = 0x02, - BAT_UNICAST = 0x03, - BAT_BCAST = 0x04, - BAT_VIS = 0x05, - BAT_UNICAST_FRAG = 0x06, - BAT_TT_QUERY = 0x07, - BAT_ROAM_ADV = 0x08, - BAT_UNICAST_4ADDR = 0x09 -}; - -enum bat_subtype { - BAT_P_DATA = 0x01, - BAT_P_DAT_DHT_GET = 0x02, - BAT_P_DAT_DHT_PUT = 0x03, - BAT_P_DAT_CACHE_REPLY = 0x04 + BAT_IV_OGM = 0x01, + BAT_ICMP = 0x02, + BAT_UNICAST = 0x03, + BAT_BCAST = 0x04, + BAT_VIS = 0x05, + BAT_UNICAST_FRAG = 0x06, + BAT_TT_QUERY = 0x07, + BAT_ROAM_ADV = 0x08 }; /* this file is included by batctl which needs these defines */ @@ -168,12 +160,6 @@ struct unicast_packet { uint8_t dest[ETH_ALEN]; } __packed; -struct unicast_4addr_packet { - struct unicast_packet u; - uint8_t src[ETH_ALEN]; - uint8_t subtype; -} __packed; - struct unicast_frag_packet { struct batman_header header; uint8_t ttvn; /* destination translation table version number */ -- batctl

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batman-adv; branch, master, updated. v2012.1.0-185-gdfacdc0

by postmaster＠open-mesh.org

The following commit has been merged in the master branch: commit dfacdc0457d64118d5370aabc9cfd0ebf2ba13b2 Author: Sven Eckelmann <sven(a)narfation.org> Date: Sun May 20 10:55:38 2012 +0200 batman-adv: Remove batadv_ vararg inline functions gcc doesn't support the inlining of functions using vararg. Sparse fails to build the source when having such functions marked using the keyword "inline". This problem was introduced in 3b896e321c49e3cbbfd540f537c007db883c3900 Signed-off-by: Sven Eckelmann <sven(a)narfation.org> diff --git a/bat_debugfs.c b/bat_debugfs.c index c3f7e2f..87349f4 100644 --- a/bat_debugfs.c +++ b/bat_debugfs.c @@ -74,13 +74,16 @@ static int batadv_fdebug_log(struct debug_log *debug_log, const char *fmt, ...) return 0; } -int batadv_debug_log(struct bat_priv *bat_priv, const char *fmt, va_list args) +int batadv_debug_log(struct bat_priv *bat_priv, const char *fmt, ...) { + va_list args; char tmp_log_buf[256]; + va_start(args, fmt); vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args); batadv_fdebug_log(bat_priv->debug_log, "[%10u] %s", jiffies_to_msecs(jiffies), tmp_log_buf); + va_end(args); return 0; } diff --git a/main.h b/main.h index 628b177..e447f73 100644 --- a/main.h +++ b/main.h @@ -174,36 +174,23 @@ int batadv_algo_select(struct bat_priv *bat_priv, char *name); int batadv_algo_seq_print_text(struct seq_file *seq, void *offset); #ifdef CONFIG_BATMAN_ADV_DEBUG -int batadv_debug_log(struct bat_priv *bat_priv, const char *fmt, va_list args); - -static inline void batadv_vdbg(int type, struct bat_priv *bat_priv, - const char *fmt, va_list args) -{ - if (atomic_read(&bat_priv->log_level) & type) - batadv_debug_log(bat_priv, fmt, args); -} - +int batadv_debug_log(struct bat_priv *bat_priv, const char *fmt, ...) +__printf(2, 3); + +#define batadv_dbg(type, bat_priv, fmt, arg...) \ + do { \ + if (atomic_read(&bat_priv->log_level) & type) \ + batadv_debug_log(bat_priv, fmt, ## arg);\ + } \ + while (0) #else /* !CONFIG_BATMAN_ADV_DEBUG */ - -static inline void batadv_vdbg(int type __always_unused, - struct bat_priv *bat_priv __always_unused, - const char *fmt __always_unused, - va_list args __always_unused) -{ -} - -#endif - __printf(3, 4) -static inline void batadv_dbg(int type, struct bat_priv *bat_priv, - const char *fmt, ...) +static inline void batadv_dbg(int type __always_unused, + struct bat_priv *bat_priv __always_unused, + const char *fmt __always_unused, ...) { - va_list args; - - va_start(args, fmt); - batadv_vdbg(type, bat_priv, fmt, args); - va_end(args); } +#endif #define batadv_info(net_dev, fmt, arg...) \ do { \ -- batman-adv

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linux integration; annotated tag, v3.4, created. v3.4

by postmaster＠open-mesh.org

The annotated tag, v3.4 has been created at 27406e978f596a646b87941cba5247eb0ccc8916 (tag) tagging 76e10d158efb6d4516018846f60c2ab5501900bc (commit) replaces v3.4-rc7 tagged by Linus Torvalds on Sun May 20 15:29:25 2012 -0700 - Shortlog ------------------------------------------------------------ Linux 3.4 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQEcBAABAgAGBQJPuXBKAAoJEHm+PkMAQRiGzgwH/2F+JOth4pkcGvw0S2Sf1+MS iNgYK08xOp/f5VbP8lOfTFjPhCwggSQrq+B2TF2bWYz6vmsQq1e5X319Lcy7cb9h GV3HJRKuC38fxT1unXxY+oQYvIRNmNSGD2H1jrb6Ee3gd8tYZ77qxFGskx6sXos2 74fRiqXQ1AiEj9Sh+6XSYtRwxBfwdGu1RAtpykoZiPfD3+eq07Rhy+r75AtRLKue lwHK03hMsRtevGftAFC2q76VVhOFa9EsZ3dMa2Fj1iOcRYEnGy7UnLrgqqyFk1he l5ULsg8RPCUunBJuKdmYeIMAKc3ucSv+MuOWzGcYGsja3U6sJbdE+3TUPI3/OWE= =8Z08 -----END PGP SIGNATURE----- ----------------------------------------------------------------------- -- linux integration

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batman-adv; branch, master, updated. v2012.1.0-184-g206af11

by postmaster＠open-mesh.org

The following commit has been merged in the master branch: commit 206af118414355e867e725ea83bc3a2989db5a40 Merge: 551c540ac5c716a2dd21095e86ec56f1f4d6994a d5a6cafe8fb4b1d8bc910fa2fad58bb02fc65feb Author: Marek Lindner <lindner_marek(a)yahoo.de> Date: Sat May 19 15:42:11 2012 +0800 Merge branch 'next' diff --combined Makefile index 57530db,08f8c39..9d59175 --- a/Makefile +++ b/Makefile @@@ -23,8 -23,6 +23,6 @@@ export CONFIG_BATMAN_ADV_DEBUG=n # B.A.T.M.A.N. bridge loop avoidance: export CONFIG_BATMAN_ADV_BLA=y - # B.A.T.M.A.N. distributed ARP table: - export CONFIG_BATMAN_ADV_DAT=y PWD:=$(shell pwd) KERNELPATH ?= /lib/modules/$(shell uname -r)/build @@@ -55,8 -53,7 +53,8 @@@ clean $(MAKE) -C $(KERNELPATH) M=$(PWD) PWD=$(PWD) clean install: config - $(MAKE) -C $(KERNELPATH) M=$(PWD) PWD=$(PWD) INSTALL_MOD_DIR=kernel/net/batman-adv/ modules_install + $(MAKE) -C $(KERNELPATH) M=$(PWD) PWD=$(PWD) INSTALL_MOD_DIR=updates/net/batman-adv/ modules_install + depmod -a config: $(PWD)/gen-compat-autoconf.sh $(PWD)/compat-autoconf.h diff --combined README index 49c03d5,75a5923..8f3ae4a --- a/README +++ b/README @@@ -202,8 -202,7 +202,7 @@@ abled during run time. Following log_l 2 - Enable messages related to route added / changed / deleted 4 - Enable messages related to translation table operations 8 - Enable messages related to bridge loop avoidance - 16 - Enable messaged related to DAT, ARP snooping and parsing - 31 - Enable all messages + 15 - enable all messages The debug output can be changed at runtime using the file /sys/class/net/bat0/mesh/log_level. e.g. @@@ -212,11 -211,6 +211,11 @@@ will enable debug messages for when routes change. +Counters for different types of packets entering and leaving the +batman-adv module are available through ethtool: + +# ethtool --statistics bat0 + BATCTL ------ diff --combined README.external index 787172e,da5afd4..8739bca --- a/README.external +++ b/README.external @@@ -21,7 -21,7 +21,7 @@@ if you want to compile against some oth # make KERNELPATH=/path/to/kernel -if you wont to install this module: +if you want to install this module: # sudo make install @@@ -29,7 -29,7 +29,7 @@@ CONFIGURATIO ------------- The in-kernel module can be configured through -menuconfig. When compiling outside of the kernel, tree it is +menuconfig. When compiling outside of the kernel tree, it is necessary to configure it using the make options. Each option can be set to to y (enabled), n (disabled) or m (build as module). Available options and their possible values are @@@ -37,7 -37,6 +37,6 @@@ * CONFIG_BATMAN_ADV_DEBUG=[y|n*] (B.A.T.M.A.N. debugging) * CONFIG_BATMAN_ADV_BLA=[y*|n] (B.A.T.M.A.N. bridge loop avoidance) - * CONFIG_BATMAN_ADV_DAT=[y*|n] (B.A.T.M.A.N. Distributed ARP Table) e.g., debugging can be enabled by diff --combined hard-interface.c index dbb9ef4,ce78c6d..ef81f01 --- a/hard-interface.c +++ b/hard-interface.c @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: * * Marek Lindner, Simon Wunderlich * @@@ -15,10 -16,10 +15,9 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA */ #include "main.h" - #include "distributed-arp-table.h" #include "hard-interface.h" #include "soft-interface.h" #include "send.h" @@@ -31,7 -32,7 +30,7 @@@ #include <linux/if_arp.h> -void hardif_free_rcu(struct rcu_head *rcu) +void batadv_hardif_free_rcu(struct rcu_head *rcu) { struct hard_iface *hard_iface; @@@ -40,12 -41,12 +39,12 @@@ kfree(hard_iface); } -struct hard_iface *hardif_get_by_netdev(const struct net_device *net_dev) +struct hard_iface *batadv_hardif_get_by_netdev(const struct net_device *net_dev) { struct hard_iface *hard_iface; rcu_read_lock(); - list_for_each_entry_rcu(hard_iface, &hardif_list, list) { + list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) { if (hard_iface->net_dev == net_dev && atomic_inc_not_zero(&hard_iface->refcount)) goto out; @@@ -58,7 -59,7 +57,7 @@@ out return hard_iface; } -static int is_valid_iface(const struct net_device *net_dev) +static int batadv_is_valid_iface(const struct net_device *net_dev) { if (net_dev->flags & IFF_LOOPBACK) return 0; @@@ -70,19 -71,22 +69,19 @@@ return 0; /* no batman over batman */ - if (softif_is_valid(net_dev)) + if (batadv_softif_is_valid(net_dev)) return 0; return 1; } -static struct hard_iface *hardif_get_active(const struct net_device *soft_iface) +static struct hard_iface * +batadv_hardif_get_active(const struct net_device *soft_iface) { struct hard_iface *hard_iface; rcu_read_lock(); - list_for_each_entry_rcu(hard_iface, &hardif_list, list) { + list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) { if (hard_iface->soft_iface != soft_iface) continue; @@@ -98,32 -102,30 +97,30 @@@ out return hard_iface; } -static void primary_if_update_addr(struct bat_priv *bat_priv, - struct hard_iface *oldif) +static void batadv_primary_if_update_addr(struct bat_priv *bat_priv, + struct hard_iface *oldif) { struct vis_packet *vis_packet; struct hard_iface *primary_if; - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) goto out; - batadv_dat_init_own_dht_addr(bat_priv, primary_if); - vis_packet = (struct vis_packet *) bat_priv->my_vis_info->skb_packet->data; memcpy(vis_packet->vis_orig, primary_if->net_dev->dev_addr, ETH_ALEN); memcpy(vis_packet->sender_orig, primary_if->net_dev->dev_addr, ETH_ALEN); - bla_update_orig_address(bat_priv, primary_if, oldif); + batadv_bla_update_orig_address(bat_priv, primary_if, oldif); out: if (primary_if) - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); } -static void primary_if_select(struct bat_priv *bat_priv, - struct hard_iface *new_hard_iface) +static void batadv_primary_if_select(struct bat_priv *bat_priv, + struct hard_iface *new_hard_iface) { struct hard_iface *curr_hard_iface; @@@ -139,14 -141,14 +136,14 @@@ goto out; bat_priv->bat_algo_ops->bat_primary_iface_set(new_hard_iface); - primary_if_update_addr(bat_priv, curr_hard_iface); + batadv_primary_if_update_addr(bat_priv, curr_hard_iface); out: if (curr_hard_iface) - hardif_free_ref(curr_hard_iface); + batadv_hardif_free_ref(curr_hard_iface); } -static bool hardif_is_iface_up(const struct hard_iface *hard_iface) +static bool batadv_hardif_is_iface_up(const struct hard_iface *hard_iface) { if (hard_iface->net_dev->flags & IFF_UP) return true; @@@ -154,12 -156,12 +151,12 @@@ return false; } -static void check_known_mac_addr(const struct net_device *net_dev) +static void batadv_check_known_mac_addr(const struct net_device *net_dev) { const struct hard_iface *hard_iface; rcu_read_lock(); - list_for_each_entry_rcu(hard_iface, &hardif_list, list) { + list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) { if ((hard_iface->if_status != IF_ACTIVE) && (hard_iface->if_status != IF_TO_BE_ACTIVATED)) continue; @@@ -167,8 -169,8 +164,8 @@@ if (hard_iface->net_dev == net_dev) continue; - if (!compare_eth(hard_iface->net_dev->dev_addr, - net_dev->dev_addr)) + if (!batadv_compare_eth(hard_iface->net_dev->dev_addr, + net_dev->dev_addr)) continue; pr_warn("The newly added mac address (%pM) already exists on: %s\n", @@@ -178,20 -180,19 +175,20 @@@ rcu_read_unlock(); } -int hardif_min_mtu(struct net_device *soft_iface) +int batadv_hardif_min_mtu(struct net_device *soft_iface) { const struct bat_priv *bat_priv = netdev_priv(soft_iface); const struct hard_iface *hard_iface; /* allow big frames if all devices are capable to do so - * (have MTU > 1500 + BAT_HEADER_LEN) */ + * (have MTU > 1500 + BAT_HEADER_LEN) + */ int min_mtu = ETH_DATA_LEN; if (atomic_read(&bat_priv->fragmentation)) goto out; rcu_read_lock(); - list_for_each_entry_rcu(hard_iface, &hardif_list, list) { + list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) { if ((hard_iface->if_status != IF_ACTIVE) && (hard_iface->if_status != IF_TO_BE_ACTIVATED)) continue; @@@ -208,16 -209,16 +205,16 @@@ out } /* adjusts the MTU if a new interface with a smaller MTU appeared. */ -void update_min_mtu(struct net_device *soft_iface) +void batadv_update_min_mtu(struct net_device *soft_iface) { int min_mtu; - min_mtu = hardif_min_mtu(soft_iface); + min_mtu = batadv_hardif_min_mtu(soft_iface); if (soft_iface->mtu != min_mtu) soft_iface->mtu = min_mtu; } -static void hardif_activate_interface(struct hard_iface *hard_iface) +static void batadv_hardif_activate_interface(struct hard_iface *hard_iface) { struct bat_priv *bat_priv; struct hard_iface *primary_if = NULL; @@@ -230,24 -231,25 +227,24 @@@ bat_priv->bat_algo_ops->bat_iface_update_mac(hard_iface); hard_iface->if_status = IF_TO_BE_ACTIVATED; - /** - * the first active interface becomes our primary interface or + /* the first active interface becomes our primary interface or * the next active interface after the old primary interface was removed */ - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) - primary_if_select(bat_priv, hard_iface); + batadv_primary_if_select(bat_priv, hard_iface); - bat_info(hard_iface->soft_iface, "Interface activated: %s\n", - hard_iface->net_dev->name); + batadv_info(hard_iface->soft_iface, "Interface activated: %s\n", + hard_iface->net_dev->name); - update_min_mtu(hard_iface->soft_iface); + batadv_update_min_mtu(hard_iface->soft_iface); out: if (primary_if) - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); } -static void hardif_deactivate_interface(struct hard_iface *hard_iface) +static void batadv_hardif_deactivate_interface(struct hard_iface *hard_iface) { if ((hard_iface->if_status != IF_ACTIVE) && (hard_iface->if_status != IF_TO_BE_ACTIVATED)) @@@ -255,14 -257,14 +252,14 @@@ hard_iface->if_status = IF_INACTIVE; - bat_info(hard_iface->soft_iface, "Interface deactivated: %s\n", - hard_iface->net_dev->name); + batadv_info(hard_iface->soft_iface, "Interface deactivated: %s\n", + hard_iface->net_dev->name); - update_min_mtu(hard_iface->soft_iface); + batadv_update_min_mtu(hard_iface->soft_iface); } -int hardif_enable_interface(struct hard_iface *hard_iface, - const char *iface_name) +int batadv_hardif_enable_interface(struct hard_iface *hard_iface, + const char *iface_name) { struct bat_priv *bat_priv; struct net_device *soft_iface; @@@ -282,7 -284,7 +279,7 @@@ soft_iface = dev_get_by_name(&init_net, iface_name); if (!soft_iface) { - soft_iface = softif_create(iface_name); + soft_iface = batadv_softif_create(iface_name); if (!soft_iface) { ret = -ENOMEM; @@@ -293,7 -295,7 +290,7 @@@ dev_hold(soft_iface); } - if (!softif_is_valid(soft_iface)) { + if (!batadv_softif_is_valid(soft_iface)) { pr_err("Can't create batman mesh interface %s: already exists as regular interface\n", soft_iface->name); ret = -EINVAL; @@@ -310,40 -312,40 +307,40 @@@ hard_iface->if_num = bat_priv->num_ifaces; bat_priv->num_ifaces++; hard_iface->if_status = IF_INACTIVE; - orig_hash_add_if(hard_iface, bat_priv->num_ifaces); + batadv_orig_hash_add_if(hard_iface, bat_priv->num_ifaces); hard_iface->batman_adv_ptype.type = __constant_htons(ETH_P_BATMAN); - hard_iface->batman_adv_ptype.func = batman_skb_recv; + hard_iface->batman_adv_ptype.func = batadv_batman_skb_recv; hard_iface->batman_adv_ptype.dev = hard_iface->net_dev; dev_add_pack(&hard_iface->batman_adv_ptype); atomic_set(&hard_iface->frag_seqno, 1); - bat_info(hard_iface->soft_iface, "Adding interface: %s\n", - hard_iface->net_dev->name); + batadv_info(hard_iface->soft_iface, "Adding interface: %s\n", + hard_iface->net_dev->name); if (atomic_read(&bat_priv->fragmentation) && hard_iface->net_dev->mtu < ETH_DATA_LEN + BAT_HEADER_LEN) - bat_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 %zi would solve the problem.\n", - hard_iface->net_dev->name, hard_iface->net_dev->mtu, - ETH_DATA_LEN + BAT_HEADER_LEN); + 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 %zi would solve the problem.\n", + hard_iface->net_dev->name, hard_iface->net_dev->mtu, + ETH_DATA_LEN + BAT_HEADER_LEN); if (!atomic_read(&bat_priv->fragmentation) && hard_iface->net_dev->mtu < ETH_DATA_LEN + BAT_HEADER_LEN) - bat_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 %zi.\n", - hard_iface->net_dev->name, hard_iface->net_dev->mtu, - ETH_DATA_LEN + BAT_HEADER_LEN); + 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 %zi.\n", + hard_iface->net_dev->name, hard_iface->net_dev->mtu, + ETH_DATA_LEN + BAT_HEADER_LEN); - if (hardif_is_iface_up(hard_iface)) - hardif_activate_interface(hard_iface); + if (batadv_hardif_is_iface_up(hard_iface)) + batadv_hardif_activate_interface(hard_iface); else - bat_err(hard_iface->soft_iface, - "Not using interface %s (retrying later): interface not active\n", - hard_iface->net_dev->name); + batadv_err(hard_iface->soft_iface, + "Not using interface %s (retrying later): interface not active\n", + hard_iface->net_dev->name); /* begin scheduling originator messages on that interface */ - schedule_bat_ogm(hard_iface); + batadv_schedule_bat_ogm(hard_iface); out: return 0; @@@ -351,68 -353,67 +348,68 @@@ err_dev: dev_put(soft_iface); err: - hardif_free_ref(hard_iface); + batadv_hardif_free_ref(hard_iface); return ret; } -void hardif_disable_interface(struct hard_iface *hard_iface) +void batadv_hardif_disable_interface(struct hard_iface *hard_iface) { struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface); struct hard_iface *primary_if = NULL; if (hard_iface->if_status == IF_ACTIVE) - hardif_deactivate_interface(hard_iface); + batadv_hardif_deactivate_interface(hard_iface); if (hard_iface->if_status != IF_INACTIVE) goto out; - bat_info(hard_iface->soft_iface, "Removing interface: %s\n", - hard_iface->net_dev->name); + batadv_info(hard_iface->soft_iface, "Removing interface: %s\n", + hard_iface->net_dev->name); dev_remove_pack(&hard_iface->batman_adv_ptype); bat_priv->num_ifaces--; - orig_hash_del_if(hard_iface, bat_priv->num_ifaces); + batadv_orig_hash_del_if(hard_iface, bat_priv->num_ifaces); - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (hard_iface == primary_if) { struct hard_iface *new_if; - new_if = hardif_get_active(hard_iface->soft_iface); - primary_if_select(bat_priv, new_if); + new_if = batadv_hardif_get_active(hard_iface->soft_iface); + batadv_primary_if_select(bat_priv, new_if); if (new_if) - hardif_free_ref(new_if); + batadv_hardif_free_ref(new_if); } bat_priv->bat_algo_ops->bat_iface_disable(hard_iface); hard_iface->if_status = IF_NOT_IN_USE; /* delete all references to this hard_iface */ - purge_orig_ref(bat_priv); - purge_outstanding_packets(bat_priv, hard_iface); + batadv_purge_orig_ref(bat_priv); + batadv_purge_outstanding_packets(bat_priv, hard_iface); dev_put(hard_iface->soft_iface); /* nobody uses this interface anymore */ if (!bat_priv->num_ifaces) - softif_destroy(hard_iface->soft_iface); + batadv_softif_destroy(hard_iface->soft_iface); hard_iface->soft_iface = NULL; - hardif_free_ref(hard_iface); + batadv_hardif_free_ref(hard_iface); out: if (primary_if) - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); } -static struct hard_iface *hardif_add_interface(struct net_device *net_dev) +static struct hard_iface * +batadv_hardif_add_interface(struct net_device *net_dev) { struct hard_iface *hard_iface; int ret; ASSERT_RTNL(); - ret = is_valid_iface(net_dev); + ret = batadv_is_valid_iface(net_dev); if (ret != 1) goto out; @@@ -422,7 -423,7 +419,7 @@@ if (!hard_iface) goto release_dev; - ret = sysfs_add_hardif(&hard_iface->hardif_obj, net_dev); + ret = batadv_sysfs_add_hardif(&hard_iface->hardif_obj, net_dev); if (ret) goto free_if; @@@ -434,10 -435,11 +431,10 @@@ /* extra reference for return */ atomic_set(&hard_iface->refcount, 2); - check_known_mac_addr(hard_iface->net_dev); - list_add_tail_rcu(&hard_iface->list, &hardif_list); + batadv_check_known_mac_addr(hard_iface->net_dev); + list_add_tail_rcu(&hard_iface->list, &batadv_hardif_list); - /** - * This can't be called via a bat_priv callback because + /* This can't be called via a bat_priv callback because * we have no bat_priv yet. */ atomic_set(&hard_iface->seqno, 1); @@@ -453,98 -455,97 +450,98 @@@ out return NULL; } -static void hardif_remove_interface(struct hard_iface *hard_iface) +static void batadv_hardif_remove_interface(struct hard_iface *hard_iface) { ASSERT_RTNL(); /* first deactivate interface */ if (hard_iface->if_status != IF_NOT_IN_USE) - hardif_disable_interface(hard_iface); + batadv_hardif_disable_interface(hard_iface); if (hard_iface->if_status != IF_NOT_IN_USE) return; hard_iface->if_status = IF_TO_BE_REMOVED; - sysfs_del_hardif(&hard_iface->hardif_obj); - hardif_free_ref(hard_iface); + batadv_sysfs_del_hardif(&hard_iface->hardif_obj); + batadv_hardif_free_ref(hard_iface); } -void hardif_remove_interfaces(void) +void batadv_hardif_remove_interfaces(void) { struct hard_iface *hard_iface, *hard_iface_tmp; rtnl_lock(); list_for_each_entry_safe(hard_iface, hard_iface_tmp, - &hardif_list, list) { + &batadv_hardif_list, list) { list_del_rcu(&hard_iface->list); - hardif_remove_interface(hard_iface); + batadv_hardif_remove_interface(hard_iface); } rtnl_unlock(); } -static int hard_if_event(struct notifier_block *this, +static int batadv_hard_if_event(struct notifier_block *this, unsigned long event, void *ptr) { struct net_device *net_dev = ptr; - struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev); + struct hard_iface *hard_iface = batadv_hardif_get_by_netdev(net_dev); struct hard_iface *primary_if = NULL; struct bat_priv *bat_priv; if (!hard_iface && event == NETDEV_REGISTER) - hard_iface = hardif_add_interface(net_dev); + hard_iface = batadv_hardif_add_interface(net_dev); if (!hard_iface) goto out; switch (event) { case NETDEV_UP: - hardif_activate_interface(hard_iface); + batadv_hardif_activate_interface(hard_iface); break; case NETDEV_GOING_DOWN: case NETDEV_DOWN: - hardif_deactivate_interface(hard_iface); + batadv_hardif_deactivate_interface(hard_iface); break; case NETDEV_UNREGISTER: list_del_rcu(&hard_iface->list); - hardif_remove_interface(hard_iface); + batadv_hardif_remove_interface(hard_iface); break; case NETDEV_CHANGEMTU: if (hard_iface->soft_iface) - update_min_mtu(hard_iface->soft_iface); + batadv_update_min_mtu(hard_iface->soft_iface); break; case NETDEV_CHANGEADDR: if (hard_iface->if_status == IF_NOT_IN_USE) goto hardif_put; - check_known_mac_addr(hard_iface->net_dev); + batadv_check_known_mac_addr(hard_iface->net_dev); bat_priv = netdev_priv(hard_iface->soft_iface); bat_priv->bat_algo_ops->bat_iface_update_mac(hard_iface); - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) goto hardif_put; if (hard_iface == primary_if) - primary_if_update_addr(bat_priv, NULL); + batadv_primary_if_update_addr(bat_priv, NULL); break; default: break; } hardif_put: - hardif_free_ref(hard_iface); + batadv_hardif_free_ref(hard_iface); out: if (primary_if) - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); return NOTIFY_DONE; } /* This function returns true if the interface represented by ifindex is a - * 802.11 wireless device */ -bool is_wifi_iface(int ifindex) + * 802.11 wireless device + */ +bool batadv_is_wifi_iface(int ifindex) { struct net_device *net_device = NULL; bool ret = false; @@@ -558,8 -559,7 +555,8 @@@ #ifdef CONFIG_WIRELESS_EXT /* pre-cfg80211 drivers have to implement WEXT, so it is possible to - * check for wireless_handlers != NULL */ + * check for wireless_handlers != NULL + */ if (net_device->wireless_handlers) ret = true; else @@@ -573,6 -573,6 +570,6 @@@ out return ret; } -struct notifier_block hard_if_notifier = { - .notifier_call = hard_if_event, +struct notifier_block batadv_hard_if_notifier = { + .notifier_call = batadv_hard_if_event, }; diff --combined main.c index b051457,083a299..9cf0b38 --- a/main.c +++ b/main.c @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: * * Marek Lindner, Simon Wunderlich * @@@ -15,6 -16,7 +15,6 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA - * */ #include "main.h" @@@ -35,41 -37,38 +35,41 @@@ /* List manipulations on hardif_list have to be rtnl_lock()'ed, - * list traversals just rcu-locked */ -struct list_head hardif_list; -static int (*recv_packet_handler[256])(struct sk_buff *, struct hard_iface *); -char bat_routing_algo[20] = "BATMAN IV"; -static struct hlist_head bat_algo_list; + * list traversals just rcu-locked + */ +struct list_head batadv_hardif_list; +static int (*batadv_rx_handler[256])(struct sk_buff *, + struct hard_iface *); +char batadv_routing_algo[20] = "BATMAN_IV"; +static struct hlist_head batadv_algo_list; -unsigned char broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; +unsigned char batadv_broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; -struct workqueue_struct *bat_event_workqueue; +struct workqueue_struct *batadv_event_workqueue; -static void recv_handler_init(void); +static void batadv_recv_handler_init(void); -static int __init batman_init(void) +static int __init batadv_init(void) { - INIT_LIST_HEAD(&hardif_list); - INIT_HLIST_HEAD(&bat_algo_list); + INIT_LIST_HEAD(&batadv_hardif_list); + INIT_HLIST_HEAD(&batadv_algo_list); - recv_handler_init(); + batadv_recv_handler_init(); - bat_iv_init(); + batadv_iv_init(); /* the name should not be longer than 10 chars - see - * http://lwn.net/Articles/23634/ */ - bat_event_workqueue = create_singlethread_workqueue("bat_events"); + * http://lwn.net/Articles/23634/ + */ + batadv_event_workqueue = create_singlethread_workqueue("bat_events"); - if (!bat_event_workqueue) + if (!batadv_event_workqueue) return -ENOMEM; - bat_socket_init(); - debugfs_init(); + batadv_socket_init(); + batadv_debugfs_init(); - register_netdevice_notifier(&hard_if_notifier); + register_netdevice_notifier(&batadv_hard_if_notifier); pr_info("B.A.T.M.A.N. advanced %s (compatibility version %i) loaded\n", SOURCE_VERSION, COMPAT_VERSION); @@@ -77,23 -76,22 +77,23 @@@ return 0; } -static void __exit batman_exit(void) +static void __exit batadv_exit(void) { - debugfs_destroy(); - unregister_netdevice_notifier(&hard_if_notifier); - hardif_remove_interfaces(); + batadv_debugfs_destroy(); + unregister_netdevice_notifier(&batadv_hard_if_notifier); + batadv_hardif_remove_interfaces(); - flush_workqueue(bat_event_workqueue); - destroy_workqueue(bat_event_workqueue); - bat_event_workqueue = NULL; + flush_workqueue(batadv_event_workqueue); + destroy_workqueue(batadv_event_workqueue); + batadv_event_workqueue = NULL; rcu_barrier(); } -int mesh_init(struct net_device *soft_iface) +int batadv_mesh_init(struct net_device *soft_iface) { struct bat_priv *bat_priv = netdev_priv(soft_iface); + int ret; spin_lock_init(&bat_priv->forw_bat_list_lock); spin_lock_init(&bat_priv->forw_bcast_list_lock); @@@ -112,76 -110,72 +112,76 @@@ INIT_LIST_HEAD(&bat_priv->tt_req_list); INIT_LIST_HEAD(&bat_priv->tt_roam_list); - if (originator_init(bat_priv) < 1) + ret = batadv_originator_init(bat_priv); + if (ret < 0) goto err; - if (tt_init(bat_priv) < 1) + ret = batadv_tt_init(bat_priv); + if (ret < 0) goto err; - tt_local_add(soft_iface, soft_iface->dev_addr, NULL_IFINDEX); + batadv_tt_local_add(soft_iface, soft_iface->dev_addr, NULL_IFINDEX); - if (vis_init(bat_priv) < 1) + ret = batadv_vis_init(bat_priv); + if (ret < 0) goto err; - if (bla_init(bat_priv) < 1) + ret = batadv_bla_init(bat_priv); + if (ret < 0) goto err; atomic_set(&bat_priv->gw_reselect, 0); atomic_set(&bat_priv->mesh_state, MESH_ACTIVE); - goto end; - -err: - mesh_free(soft_iface); - return -1; -end: return 0; + +err: + batadv_mesh_free(soft_iface); + return ret; } -void mesh_free(struct net_device *soft_iface) +void batadv_mesh_free(struct net_device *soft_iface) { struct bat_priv *bat_priv = netdev_priv(soft_iface); atomic_set(&bat_priv->mesh_state, MESH_DEACTIVATING); - purge_outstanding_packets(bat_priv, NULL); + batadv_purge_outstanding_packets(bat_priv, NULL); - vis_quit(bat_priv); + batadv_vis_quit(bat_priv); - gw_node_purge(bat_priv); - originator_free(bat_priv); + batadv_gw_node_purge(bat_priv); + batadv_originator_free(bat_priv); - tt_free(bat_priv); + batadv_tt_free(bat_priv); - bla_free(bat_priv); + batadv_bla_free(bat_priv); + + free_percpu(bat_priv->bat_counters); atomic_set(&bat_priv->mesh_state, MESH_INACTIVE); } -void inc_module_count(void) +void batadv_inc_module_count(void) { try_module_get(THIS_MODULE); } -void dec_module_count(void) +void batadv_dec_module_count(void) { module_put(THIS_MODULE); } -int is_my_mac(const uint8_t *addr) +int batadv_is_my_mac(const uint8_t *addr) { const struct hard_iface *hard_iface; rcu_read_lock(); - list_for_each_entry_rcu(hard_iface, &hardif_list, list) { + list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) { if (hard_iface->if_status != IF_ACTIVE) continue; - if (compare_eth(hard_iface->net_dev->dev_addr, addr)) { + if (batadv_compare_eth(hard_iface->net_dev->dev_addr, addr)) { rcu_read_unlock(); return 1; } @@@ -190,8 -184,8 +190,8 @@@ return 0; } -static int recv_unhandled_packet(struct sk_buff *skb, - struct hard_iface *recv_if) +static int batadv_recv_unhandled_packet(struct sk_buff *skb, + struct hard_iface *recv_if) { return NET_RX_DROP; } @@@ -199,9 -193,8 +199,9 @@@ /* incoming packets with the batman ethertype received on any active hard * interface */ -int batman_skb_recv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *ptype, struct net_device *orig_dev) +int batadv_batman_skb_recv(struct sk_buff *skb, struct net_device *dev, + struct packet_type *ptype, + struct net_device *orig_dev) { struct bat_priv *bat_priv; struct batman_ogm_packet *batman_ogm_packet; @@@ -239,9 -232,9 +239,9 @@@ batman_ogm_packet = (struct batman_ogm_packet *)skb->data; if (batman_ogm_packet->header.version != COMPAT_VERSION) { - bat_dbg(DBG_BATMAN, bat_priv, - "Drop packet: incompatible batman version (%i)\n", - batman_ogm_packet->header.version); + batadv_dbg(DBG_BATMAN, bat_priv, + "Drop packet: incompatible batman version (%i)\n", + batman_ogm_packet->header.version); goto err_free; } @@@ -249,7 -242,7 +249,7 @@@ * the supplied skb. if not, we have to free the skb. */ idx = batman_ogm_packet->header.packet_type; - ret = (*recv_packet_handler[idx])(skb, hard_iface); + ret = (*batadv_rx_handler[idx])(skb, hard_iface); if (ret == NET_RX_DROP) kfree_skb(skb); @@@ -266,53 -259,51 +266,51 @@@ err_out return NET_RX_DROP; } -static void recv_handler_init(void) +static void batadv_recv_handler_init(void) { int i; - for (i = 0; i < ARRAY_SIZE(recv_packet_handler); i++) - recv_packet_handler[i] = recv_unhandled_packet; + for (i = 0; i < ARRAY_SIZE(batadv_rx_handler); i++) + batadv_rx_handler[i] = batadv_recv_unhandled_packet; /* batman icmp packet */ - recv_packet_handler[BAT_ICMP] = recv_icmp_packet; + batadv_rx_handler[BAT_ICMP] = batadv_recv_icmp_packet; - /* unicast with 4 addresses packet */ - batadv_rx_handler[BAT_UNICAST_4ADDR] = batadv_recv_unicast_packet; /* unicast packet */ - recv_packet_handler[BAT_UNICAST] = recv_unicast_packet; + batadv_rx_handler[BAT_UNICAST] = batadv_recv_unicast_packet; /* fragmented unicast packet */ - recv_packet_handler[BAT_UNICAST_FRAG] = recv_ucast_frag_packet; + batadv_rx_handler[BAT_UNICAST_FRAG] = batadv_recv_ucast_frag_packet; /* broadcast packet */ - recv_packet_handler[BAT_BCAST] = recv_bcast_packet; + batadv_rx_handler[BAT_BCAST] = batadv_recv_bcast_packet; /* vis packet */ - recv_packet_handler[BAT_VIS] = recv_vis_packet; + batadv_rx_handler[BAT_VIS] = batadv_recv_vis_packet; /* Translation table query (request or response) */ - recv_packet_handler[BAT_TT_QUERY] = recv_tt_query; + batadv_rx_handler[BAT_TT_QUERY] = batadv_recv_tt_query; /* Roaming advertisement */ - recv_packet_handler[BAT_ROAM_ADV] = recv_roam_adv; + batadv_rx_handler[BAT_ROAM_ADV] = batadv_recv_roam_adv; } -int recv_handler_register(uint8_t packet_type, - int (*recv_handler)(struct sk_buff *, - struct hard_iface *)) +int batadv_recv_handler_register(uint8_t packet_type, + int (*recv_handler)(struct sk_buff *, + struct hard_iface *)) { - if (recv_packet_handler[packet_type] != &recv_unhandled_packet) + if (batadv_rx_handler[packet_type] != &batadv_recv_unhandled_packet) return -EBUSY; - recv_packet_handler[packet_type] = recv_handler; + batadv_rx_handler[packet_type] = recv_handler; return 0; } -void recv_handler_unregister(uint8_t packet_type) +void batadv_recv_handler_unregister(uint8_t packet_type) { - recv_packet_handler[packet_type] = recv_unhandled_packet; + batadv_rx_handler[packet_type] = batadv_recv_unhandled_packet; } -static struct bat_algo_ops *bat_algo_get(char *name) +static struct bat_algo_ops *batadv_algo_get(char *name) { struct bat_algo_ops *bat_algo_ops = NULL, *bat_algo_ops_tmp; struct hlist_node *node; - hlist_for_each_entry(bat_algo_ops_tmp, node, &bat_algo_list, list) { + hlist_for_each_entry(bat_algo_ops_tmp, node, &batadv_algo_list, list) { if (strcmp(bat_algo_ops_tmp->name, name) != 0) continue; @@@ -323,16 -314,15 +321,16 @@@ return bat_algo_ops; } -int bat_algo_register(struct bat_algo_ops *bat_algo_ops) +int batadv_algo_register(struct bat_algo_ops *bat_algo_ops) { struct bat_algo_ops *bat_algo_ops_tmp; - int ret = -1; + int ret; - bat_algo_ops_tmp = bat_algo_get(bat_algo_ops->name); + bat_algo_ops_tmp = batadv_algo_get(bat_algo_ops->name); if (bat_algo_ops_tmp) { pr_info("Trying to register already registered routing algorithm: %s\n", bat_algo_ops->name); + ret = -EEXIST; goto out; } @@@ -345,24 -335,23 +343,24 @@@ !bat_algo_ops->bat_ogm_emit) { pr_info("Routing algo '%s' does not implement required ops\n", bat_algo_ops->name); + ret = -EINVAL; goto out; } INIT_HLIST_NODE(&bat_algo_ops->list); - hlist_add_head(&bat_algo_ops->list, &bat_algo_list); + hlist_add_head(&bat_algo_ops->list, &batadv_algo_list); ret = 0; out: return ret; } -int bat_algo_select(struct bat_priv *bat_priv, char *name) +int batadv_algo_select(struct bat_priv *bat_priv, char *name) { struct bat_algo_ops *bat_algo_ops; - int ret = -1; + int ret = -EINVAL; - bat_algo_ops = bat_algo_get(name); + bat_algo_ops = batadv_algo_get(name); if (!bat_algo_ops) goto out; @@@ -373,52 -362,46 +371,52 @@@ out return ret; } -int bat_algo_seq_print_text(struct seq_file *seq, void *offset) +int batadv_algo_seq_print_text(struct seq_file *seq, void *offset) { struct bat_algo_ops *bat_algo_ops; struct hlist_node *node; seq_printf(seq, "Available routing algorithms:\n"); - hlist_for_each_entry(bat_algo_ops, node, &bat_algo_list, list) { + hlist_for_each_entry(bat_algo_ops, node, &batadv_algo_list, list) { seq_printf(seq, "%s\n", bat_algo_ops->name); } return 0; } -static int param_set_ra(const char *val, const struct kernel_param *kp) +static int batadv_param_set_ra(const char *val, const struct kernel_param *kp) { struct bat_algo_ops *bat_algo_ops; + char *algo_name = (char *)val; + size_t name_len = strlen(algo_name); + + if (algo_name[name_len - 1] == '\n') + algo_name[name_len - 1] = '\0'; - bat_algo_ops = bat_algo_get((char *)val); + bat_algo_ops = batadv_algo_get(algo_name); if (!bat_algo_ops) { - pr_err("Routing algorithm '%s' is not supported\n", val); + pr_err("Routing algorithm '%s' is not supported\n", algo_name); return -EINVAL; } - return param_set_copystring(val, kp); + return param_set_copystring(algo_name, kp); } -static const struct kernel_param_ops param_ops_ra = { - .set = param_set_ra, +static const struct kernel_param_ops batadv_param_ops_ra = { + .set = batadv_param_set_ra, .get = param_get_string, }; -static struct kparam_string __param_string_ra = { - .maxlen = sizeof(bat_routing_algo), - .string = bat_routing_algo, +static struct kparam_string batadv_param_string_ra = { + .maxlen = sizeof(batadv_routing_algo), + .string = batadv_routing_algo, }; -module_param_cb(routing_algo, &param_ops_ra, &__param_string_ra, 0644); -module_init(batman_init); -module_exit(batman_exit); +module_param_cb(routing_algo, &batadv_param_ops_ra, &batadv_param_string_ra, + 0644); +module_init(batadv_init); +module_exit(batadv_exit); MODULE_LICENSE("GPL"); diff --combined main.h index 977de45,19e5881..628b177 --- a/main.h +++ b/main.h @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: * * Marek Lindner, Simon Wunderlich * @@@ -15,6 -16,7 +15,6 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA - * */ #ifndef _NET_BATMAN_ADV_MAIN_H_ @@@ -34,21 -36,19 +34,21 @@@ #define TQ_MAX_VALUE 255 #define JITTER 20 - /* Time To Live of broadcast messages */ +/* Time To Live of broadcast messages */ #define TTL 50 /* purge originators after time in seconds if no valid packet comes in - * -> TODO: check influence on TQ_LOCAL_WINDOW_SIZE */ + * -> TODO: check influence on TQ_LOCAL_WINDOW_SIZE + */ #define PURGE_TIMEOUT 200000 /* 200 seconds */ #define TT_LOCAL_TIMEOUT 3600000 /* in miliseconds */ #define TT_CLIENT_ROAM_TIMEOUT 600000 /* in miliseconds */ /* sliding packet range of received originator messages in sequence numbers - * (should be a multiple of our word size) */ + * (should be a multiple of our word size) + */ #define TQ_LOCAL_WINDOW_SIZE 64 -#define TT_REQUEST_TIMEOUT 3000 /* miliseconds we have to keep - * pending tt_req */ +/* miliseconds we have to keep pending tt_req */ +#define TT_REQUEST_TIMEOUT 3000 #define TQ_GLOBAL_WINDOW_SIZE 5 #define TQ_LOCAL_BIDRECT_SEND_MINIMUM 1 @@@ -57,10 -57,8 +57,10 @@@ #define TT_OGM_APPEND_MAX 3 /* number of OGMs sent with the last tt diff */ -#define ROAMING_MAX_TIME 20000 /* Time in which a client can roam at most - * ROAMING_MAX_COUNT times in miliseconds*/ +/* Time in which a client can roam at most ROAMING_MAX_COUNT times in + * miliseconds + */ +#define ROAMING_MAX_TIME 20000 #define ROAMING_MAX_COUNT 5 #define NO_FLAGS 0 @@@ -69,27 -67,16 +69,18 @@@ #define NUM_WORDS BITS_TO_LONGS(TQ_LOCAL_WINDOW_SIZE) - /* msecs after which an ARP_REQUEST is sent in broadcast as fallback */ - #define ARP_REQ_DELAY 250 - /* numbers of originator to contact for any PUT/GET DHT operation */ - #define DHT_CANDIDATES_NUM 3 - /* Factor which default ARP timeout values of the soft_iface table are - * multiplied by - */ - #define ARP_TIMEOUT_FACTOR 4 - #define LOG_BUF_LEN 8192 /* has to be a power of 2 */ #define VIS_INTERVAL 5000 /* 5 seconds */ /* how much worse secondary interfaces may be to be considered as bonding - * candidates */ + * candidates + */ #define BONDING_TQ_THRESHOLD 50 /* should not be bigger than 512 bytes or change the size of - * forw_packet->direct_link_flags */ + * forw_packet->direct_link_flags + */ #define MAX_AGGREGATION_BYTES 512 #define MAX_AGGREGATION_MS 100 @@@ -124,9 -111,6 +115,6 @@@ enum uev_type #define GW_THRESHOLD 50 - #define DHT_CANDIDATE_NOT_FOUND 0 - #define DHT_CANDIDATE_ORIG 1 - /* Debug Messages */ #ifdef pr_fmt #undef pr_fmt @@@ -140,8 -124,7 +128,7 @@@ enum dbg_level DBG_ROUTES = 1 << 1, /* route added / changed / deleted */ DBG_TT = 1 << 2, /* translation table operations */ DBG_BLA = 1 << 3, /* bridge loop avoidance */ - DBG_DAT = 1 << 4, /* snooped arp messages / dat operations */ - DBG_ALL = 31 + DBG_ALL = 15 }; /* Kernel headers */ @@@ -155,7 -138,6 +142,7 @@@ #include <linux/kthread.h> /* kernel threads */ #include <linux/pkt_sched.h> /* schedule types */ #include <linux/workqueue.h> /* workqueue */ +#include <linux/percpu.h> #include <linux/slab.h> #include <net/sock.h> /* struct sock */ #include <linux/jiffies.h> @@@ -164,100 -146,87 +151,100 @@@ #include "types.h" -extern char bat_routing_algo[]; -extern struct list_head hardif_list; - -extern unsigned char broadcast_addr[]; -extern struct workqueue_struct *bat_event_workqueue; - -int mesh_init(struct net_device *soft_iface); -void mesh_free(struct net_device *soft_iface); -void inc_module_count(void); -void dec_module_count(void); -int is_my_mac(const uint8_t *addr); -int batman_skb_recv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *ptype, struct net_device *orig_dev); -int recv_handler_register(uint8_t packet_type, - int (*recv_handler)(struct sk_buff *, - struct hard_iface *)); -void recv_handler_unregister(uint8_t packet_type); -int bat_algo_register(struct bat_algo_ops *bat_algo_ops); -int bat_algo_select(struct bat_priv *bat_priv, char *name); -int bat_algo_seq_print_text(struct seq_file *seq, void *offset); +extern char batadv_routing_algo[]; +extern struct list_head batadv_hardif_list; + +extern unsigned char batadv_broadcast_addr[]; +extern struct workqueue_struct *batadv_event_workqueue; + +int batadv_mesh_init(struct net_device *soft_iface); +void batadv_mesh_free(struct net_device *soft_iface); +void batadv_inc_module_count(void); +void batadv_dec_module_count(void); +int batadv_is_my_mac(const uint8_t *addr); +int batadv_batman_skb_recv(struct sk_buff *skb, struct net_device *dev, + struct packet_type *ptype, + struct net_device *orig_dev); +int batadv_recv_handler_register(uint8_t packet_type, + int (*recv_handler)(struct sk_buff *, + struct hard_iface *)); +void batadv_recv_handler_unregister(uint8_t packet_type); +int batadv_algo_register(struct bat_algo_ops *bat_algo_ops); +int batadv_algo_select(struct bat_priv *bat_priv, char *name); +int batadv_algo_seq_print_text(struct seq_file *seq, void *offset); #ifdef CONFIG_BATMAN_ADV_DEBUG -int debug_log(struct bat_priv *bat_priv, const char *fmt, ...) __printf(2, 3); - -#define bat_dbg(type, bat_priv, fmt, arg...) \ - do { \ - if (atomic_read(&bat_priv->log_level) & type) \ - debug_log(bat_priv, fmt, ## arg); \ - } \ - while (0) +int batadv_debug_log(struct bat_priv *bat_priv, const char *fmt, va_list args); + +static inline void batadv_vdbg(int type, struct bat_priv *bat_priv, + const char *fmt, va_list args) +{ + if (atomic_read(&bat_priv->log_level) & type) + batadv_debug_log(bat_priv, fmt, args); +} + #else /* !CONFIG_BATMAN_ADV_DEBUG */ -__printf(3, 4) -static inline void bat_dbg(int type __always_unused, - struct bat_priv *bat_priv __always_unused, - const char *fmt __always_unused, ...) + +static inline void batadv_vdbg(int type __always_unused, + struct bat_priv *bat_priv __always_unused, + const char *fmt __always_unused, + va_list args __always_unused) { } + #endif -#define bat_info(net_dev, fmt, arg...) \ +__printf(3, 4) +static inline void batadv_dbg(int type, struct bat_priv *bat_priv, + const char *fmt, ...) +{ + va_list args; + + va_start(args, fmt); + batadv_vdbg(type, bat_priv, fmt, args); + va_end(args); +} + +#define batadv_info(net_dev, fmt, arg...) \ do { \ struct net_device *_netdev = (net_dev); \ struct bat_priv *_batpriv = netdev_priv(_netdev); \ - bat_dbg(DBG_ALL, _batpriv, fmt, ## arg); \ + batadv_dbg(DBG_ALL, _batpriv, fmt, ## arg); \ pr_info("%s: " fmt, _netdev->name, ## arg); \ } while (0) -#define bat_err(net_dev, fmt, arg...) \ +#define batadv_err(net_dev, fmt, arg...) \ do { \ struct net_device *_netdev = (net_dev); \ struct bat_priv *_batpriv = netdev_priv(_netdev); \ - bat_dbg(DBG_ALL, _batpriv, fmt, ## arg); \ + batadv_dbg(DBG_ALL, _batpriv, fmt, ## arg); \ pr_err("%s: " fmt, _netdev->name, ## arg); \ } while (0) -/** - * returns 1 if they are the same ethernet addr +/* returns 1 if they are the same ethernet addr * * note: can't use compare_ether_addr() as it requires aligned memory */ - -static inline int compare_eth(const void *data1, const void *data2) +static inline int batadv_compare_eth(const void *data1, const void *data2) { return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0); } -/** - * has_timed_out - compares current time (jiffies) and timestamp + timeout +/* has_timed_out - compares current time (jiffies) and timestamp + timeout * @timestamp: base value to compare with (in jiffies) * @timeout: added to base value before comparing (in milliseconds) * * Returns true if current time is after timestamp + timeout */ -static inline bool has_timed_out(unsigned long timestamp, unsigned int timeout) +static inline bool batadv_has_timed_out(unsigned long timestamp, + unsigned int timeout) { return time_is_before_jiffies(timestamp + msecs_to_jiffies(timeout)); } -#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0) +#define batadv_atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0) /* Returns the smallest signed integer in two's complement with the sizeof x */ -#define smallest_signed_int(x) (1u << (7u + 8u * (sizeof(x) - 1u))) +#define batadv_smallest_signed_int(x) (1u << (7u + 8u * (sizeof(x) - 1u))) /* Checks if a sequence number x is a predecessor/successor of y. * they handle overflows/underflows and can correctly check for a @@@ -267,39 -236,12 +254,39 @@@ * - when adding nothing - it is neither a predecessor nor a successor * - before adding more than 127 to the starting value - it is a predecessor, * - when adding 128 - it is neither a predecessor nor a successor, - * - after adding more than 127 to the starting value - it is a successor */ -#define seq_before(x, y) ({typeof(x) _d1 = (x); \ - typeof(y) _d2 = (y); \ - typeof(x) _dummy = (_d1 - _d2); \ - (void) (&_d1 == &_d2); \ - _dummy > smallest_signed_int(_dummy); }) -#define seq_after(x, y) seq_before(y, x) + * - after adding more than 127 to the starting value - it is a successor + */ +#define batadv_seq_before(x, y) ({typeof(x) _d1 = (x); \ + typeof(y) _d2 = (y); \ + typeof(x) _dummy = (_d1 - _d2); \ + (void) (&_d1 == &_d2); \ + _dummy > batadv_smallest_signed_int(_dummy); }) +#define batadv_seq_after(x, y) batadv_seq_before(y, x) + +/* Stop preemption on local cpu while incrementing the counter */ +static inline void batadv_add_counter(struct bat_priv *bat_priv, size_t idx, + size_t count) +{ + int cpu = get_cpu(); + per_cpu_ptr(bat_priv->bat_counters, cpu)[idx] += count; + put_cpu(); +} + +#define batadv_inc_counter(b, i) batadv_add_counter(b, i, 1) + +/* Sum and return the cpu-local counters for index 'idx' */ +static inline uint64_t batadv_sum_counter(struct bat_priv *bat_priv, size_t idx) +{ + uint64_t *counters; + int cpu; + int sum = 0; + + for_each_possible_cpu(cpu) { + counters = per_cpu_ptr(bat_priv->bat_counters, cpu); + sum += counters[idx]; + } + + return sum; +} #endif /* _NET_BATMAN_ADV_MAIN_H_ */ diff --combined originator.c index 970dde5,4114794..bf9ec39 --- a/originator.c +++ b/originator.c @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2009-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2009-2012 B.A.T.M.A.N. contributors: * * Marek Lindner, Simon Wunderlich * @@@ -15,10 -16,10 +15,9 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA */ #include "main.h" - #include "distributed-arp-table.h" #include "originator.h" #include "hash.h" #include "translation-table.h" @@@ -29,48 -30,48 +28,48 @@@ #include "soft-interface.h" #include "bridge_loop_avoidance.h" -static void purge_orig(struct work_struct *work); +static void batadv_purge_orig(struct work_struct *work); -static void start_purge_timer(struct bat_priv *bat_priv) +static void batadv_start_purge_timer(struct bat_priv *bat_priv) { - INIT_DELAYED_WORK(&bat_priv->orig_work, purge_orig); - queue_delayed_work(bat_event_workqueue, + INIT_DELAYED_WORK(&bat_priv->orig_work, batadv_purge_orig); + queue_delayed_work(batadv_event_workqueue, &bat_priv->orig_work, msecs_to_jiffies(1000)); } /* returns 1 if they are the same originator */ -static int compare_orig(const struct hlist_node *node, const void *data2) +static int batadv_compare_orig(const struct hlist_node *node, const void *data2) { const void *data1 = container_of(node, struct orig_node, hash_entry); return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0); } -int originator_init(struct bat_priv *bat_priv) +int batadv_originator_init(struct bat_priv *bat_priv) { if (bat_priv->orig_hash) - return 1; + return 0; - bat_priv->orig_hash = hash_new(1024); + bat_priv->orig_hash = batadv_hash_new(1024); if (!bat_priv->orig_hash) goto err; - start_purge_timer(bat_priv); - return 1; + batadv_start_purge_timer(bat_priv); + return 0; err: - return 0; + return -ENOMEM; } -void neigh_node_free_ref(struct neigh_node *neigh_node) +void batadv_neigh_node_free_ref(struct neigh_node *neigh_node) { if (atomic_dec_and_test(&neigh_node->refcount)) kfree_rcu(neigh_node, rcu); } /* increases the refcounter of a found router */ -struct neigh_node *orig_node_get_router(struct orig_node *orig_node) +struct neigh_node *batadv_orig_node_get_router(struct orig_node *orig_node) { struct neigh_node *router; @@@ -103,15 -104,15 +102,15 @@@ struct neigh_node *batadv_neigh_node_ne /* extra reference for return */ atomic_set(&neigh_node->refcount, 2); - bat_dbg(DBG_BATMAN, bat_priv, - "Creating new neighbor %pM, initial seqno %d\n", - neigh_addr, seqno); + batadv_dbg(DBG_BATMAN, bat_priv, + "Creating new neighbor %pM, initial seqno %d\n", + neigh_addr, seqno); out: return neigh_node; } -static void orig_node_free_rcu(struct rcu_head *rcu) +static void batadv_orig_node_free_rcu(struct rcu_head *rcu) { struct hlist_node *node, *node_tmp; struct neigh_node *neigh_node, *tmp_neigh_node; @@@ -125,21 -126,21 +124,21 @@@ list_for_each_entry_safe(neigh_node, tmp_neigh_node, &orig_node->bond_list, bonding_list) { list_del_rcu(&neigh_node->bonding_list); - neigh_node_free_ref(neigh_node); + batadv_neigh_node_free_ref(neigh_node); } /* for all neighbors towards this originator ... */ hlist_for_each_entry_safe(neigh_node, node, node_tmp, &orig_node->neigh_list, list) { hlist_del_rcu(&neigh_node->list); - neigh_node_free_ref(neigh_node); + batadv_neigh_node_free_ref(neigh_node); } spin_unlock_bh(&orig_node->neigh_list_lock); - frag_list_free(&orig_node->frag_list); - tt_global_del_orig(orig_node->bat_priv, orig_node, - "originator timed out"); + batadv_frag_list_free(&orig_node->frag_list); + batadv_tt_global_del_orig(orig_node->bat_priv, orig_node, + "originator timed out"); kfree(orig_node->tt_buff); kfree(orig_node->bcast_own); @@@ -147,13 -148,13 +146,13 @@@ kfree(orig_node); } -void orig_node_free_ref(struct orig_node *orig_node) +void batadv_orig_node_free_ref(struct orig_node *orig_node) { if (atomic_dec_and_test(&orig_node->refcount)) - call_rcu(&orig_node->rcu, orig_node_free_rcu); + call_rcu(&orig_node->rcu, batadv_orig_node_free_rcu); } -void originator_free(struct bat_priv *bat_priv) +void batadv_originator_free(struct bat_priv *bat_priv) { struct hashtable_t *hash = bat_priv->orig_hash; struct hlist_node *node, *node_tmp; @@@ -178,30 -179,28 +177,30 @@@ head, hash_entry) { hlist_del_rcu(node); - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); } spin_unlock_bh(list_lock); } - hash_destroy(hash); + batadv_hash_destroy(hash); } /* this function finds or creates an originator entry for the given - * address if it does not exits */ -struct orig_node *get_orig_node(struct bat_priv *bat_priv, const uint8_t *addr) + * address if it does not exits + */ +struct orig_node *batadv_get_orig_node(struct bat_priv *bat_priv, + const uint8_t *addr) { struct orig_node *orig_node; int size; int hash_added; - orig_node = orig_hash_find(bat_priv, addr); + orig_node = batadv_orig_hash_find(bat_priv, addr); if (orig_node) return orig_node; - bat_dbg(DBG_BATMAN, bat_priv, - "Creating new originator: %pM\n", addr); + batadv_dbg(DBG_BATMAN, bat_priv, "Creating new originator: %pM\n", + addr); orig_node = kzalloc(sizeof(*orig_node), GFP_ATOMIC); if (!orig_node) @@@ -221,7 -220,6 +220,6 @@@ orig_node->tt_poss_change = false; orig_node->bat_priv = bat_priv; memcpy(orig_node->orig, addr, ETH_ALEN); - batadv_dat_init_orig_node_dht_addr(orig_node); orig_node->router = NULL; orig_node->tt_crc = 0; atomic_set(&orig_node->last_ttvn, 0); @@@ -250,9 -248,8 +248,9 @@@ if (!orig_node->bcast_own_sum) goto free_bcast_own; - hash_added = hash_add(bat_priv->orig_hash, compare_orig, - choose_orig, orig_node, &orig_node->hash_entry); + hash_added = batadv_hash_add(bat_priv->orig_hash, batadv_compare_orig, + batadv_choose_orig, orig_node, + &orig_node->hash_entry); if (hash_added != 0) goto free_bcast_own_sum; @@@ -266,15 -263,14 +264,15 @@@ free_orig_node return NULL; } -static bool purge_orig_neighbors(struct bat_priv *bat_priv, - struct orig_node *orig_node, - struct neigh_node **best_neigh_node) +static bool batadv_purge_orig_neighbors(struct bat_priv *bat_priv, + struct orig_node *orig_node, + struct neigh_node **best_neigh_node) { struct hlist_node *node, *node_tmp; struct neigh_node *neigh_node; bool neigh_purged = false; unsigned long last_seen; + struct hard_iface *if_incoming; *best_neigh_node = NULL; @@@ -284,32 -280,34 +282,32 @@@ hlist_for_each_entry_safe(neigh_node, node, node_tmp, &orig_node->neigh_list, list) { - if ((has_timed_out(neigh_node->last_seen, PURGE_TIMEOUT)) || - (neigh_node->if_incoming->if_status == IF_INACTIVE) || - (neigh_node->if_incoming->if_status == IF_NOT_IN_USE) || - (neigh_node->if_incoming->if_status == IF_TO_BE_REMOVED)) { - - last_seen = neigh_node->last_seen; - - if ((neigh_node->if_incoming->if_status == - IF_INACTIVE) || - (neigh_node->if_incoming->if_status == - IF_NOT_IN_USE) || - (neigh_node->if_incoming->if_status == - IF_TO_BE_REMOVED)) - bat_dbg(DBG_BATMAN, bat_priv, - "neighbor purge: originator %pM, neighbor: %pM, iface: %s\n", - orig_node->orig, neigh_node->addr, - neigh_node->if_incoming->net_dev->name); + last_seen = neigh_node->last_seen; + if_incoming = neigh_node->if_incoming; + + if ((batadv_has_timed_out(last_seen, PURGE_TIMEOUT)) || + (if_incoming->if_status == IF_INACTIVE) || + (if_incoming->if_status == IF_NOT_IN_USE) || + (if_incoming->if_status == IF_TO_BE_REMOVED)) { + + if ((if_incoming->if_status == IF_INACTIVE) || + (if_incoming->if_status == IF_NOT_IN_USE) || + (if_incoming->if_status == IF_TO_BE_REMOVED)) + batadv_dbg(DBG_BATMAN, bat_priv, + "neighbor purge: originator %pM, neighbor: %pM, iface: %s\n", + orig_node->orig, neigh_node->addr, + if_incoming->net_dev->name); else - bat_dbg(DBG_BATMAN, bat_priv, - "neighbor timeout: originator %pM, neighbor: %pM, last_seen: %u\n", - orig_node->orig, neigh_node->addr, - jiffies_to_msecs(last_seen)); + batadv_dbg(DBG_BATMAN, bat_priv, + "neighbor timeout: originator %pM, neighbor: %pM, last_seen: %u\n", + orig_node->orig, neigh_node->addr, + jiffies_to_msecs(last_seen)); neigh_purged = true; hlist_del_rcu(&neigh_node->list); - bonding_candidate_del(orig_node, neigh_node); - neigh_node_free_ref(neigh_node); + batadv_bonding_candidate_del(orig_node, neigh_node); + batadv_neigh_node_free_ref(neigh_node); } else { if ((!*best_neigh_node) || (neigh_node->tq_avg > (*best_neigh_node)->tq_avg)) @@@ -321,28 -319,27 +319,28 @@@ return neigh_purged; } -static bool purge_orig_node(struct bat_priv *bat_priv, - struct orig_node *orig_node) +static bool batadv_purge_orig_node(struct bat_priv *bat_priv, + struct orig_node *orig_node) { struct neigh_node *best_neigh_node; - if (has_timed_out(orig_node->last_seen, 2 * PURGE_TIMEOUT)) { - bat_dbg(DBG_BATMAN, bat_priv, - "Originator timeout: originator %pM, last_seen %u\n", - orig_node->orig, - jiffies_to_msecs(orig_node->last_seen)); + if (batadv_has_timed_out(orig_node->last_seen, 2 * PURGE_TIMEOUT)) { + batadv_dbg(DBG_BATMAN, bat_priv, + "Originator timeout: originator %pM, last_seen %u\n", + orig_node->orig, + jiffies_to_msecs(orig_node->last_seen)); return true; } else { - if (purge_orig_neighbors(bat_priv, orig_node, - &best_neigh_node)) - update_route(bat_priv, orig_node, best_neigh_node); + if (batadv_purge_orig_neighbors(bat_priv, orig_node, + &best_neigh_node)) + batadv_update_route(bat_priv, orig_node, + best_neigh_node); } return false; } -static void _purge_orig(struct bat_priv *bat_priv) +static void _batadv_purge_orig(struct bat_priv *bat_priv) { struct hashtable_t *hash = bat_priv->orig_hash; struct hlist_node *node, *node_tmp; @@@ -362,43 -359,42 +360,43 @@@ spin_lock_bh(list_lock); hlist_for_each_entry_safe(orig_node, node, node_tmp, head, hash_entry) { - if (purge_orig_node(bat_priv, orig_node)) { + if (batadv_purge_orig_node(bat_priv, orig_node)) { if (orig_node->gw_flags) - gw_node_delete(bat_priv, orig_node); + batadv_gw_node_delete(bat_priv, + orig_node); hlist_del_rcu(node); - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); continue; } - if (has_timed_out(orig_node->last_frag_packet, - FRAG_TIMEOUT)) - frag_list_free(&orig_node->frag_list); + if (batadv_has_timed_out(orig_node->last_frag_packet, + FRAG_TIMEOUT)) + batadv_frag_list_free(&orig_node->frag_list); } spin_unlock_bh(list_lock); } - gw_node_purge(bat_priv); - gw_election(bat_priv); + batadv_gw_node_purge(bat_priv); + batadv_gw_election(bat_priv); } -static void purge_orig(struct work_struct *work) +static void batadv_purge_orig(struct work_struct *work) { struct delayed_work *delayed_work = container_of(work, struct delayed_work, work); struct bat_priv *bat_priv = container_of(delayed_work, struct bat_priv, orig_work); - _purge_orig(bat_priv); - start_purge_timer(bat_priv); + _batadv_purge_orig(bat_priv); + batadv_start_purge_timer(bat_priv); } -void purge_orig_ref(struct bat_priv *bat_priv) +void batadv_purge_orig_ref(struct bat_priv *bat_priv) { - _purge_orig(bat_priv); + _batadv_purge_orig(bat_priv); } -int orig_seq_print_text(struct seq_file *seq, void *offset) +int batadv_orig_seq_print_text(struct seq_file *seq, void *offset) { struct net_device *net_dev = (struct net_device *)seq->private; struct bat_priv *bat_priv = netdev_priv(net_dev); @@@ -414,7 -410,7 +412,7 @@@ uint32_t i; int ret = 0; - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) { ret = seq_printf(seq, @@@ -442,7 -438,7 +440,7 @@@ rcu_read_lock(); hlist_for_each_entry_rcu(orig_node, node, head, hash_entry) { - neigh_node = orig_node_get_router(orig_node); + neigh_node = batadv_orig_node_get_router(orig_node); if (!neigh_node) continue; @@@ -471,7 -467,7 +469,7 @@@ batman_count++; next: - neigh_node_free_ref(neigh_node); + batadv_neigh_node_free_ref(neigh_node); } rcu_read_unlock(); } @@@ -481,18 -477,18 +479,18 @@@ out: if (primary_if) - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); return ret; } -static int orig_node_add_if(struct orig_node *orig_node, int max_if_num) +static int batadv_orig_node_add_if(struct orig_node *orig_node, int max_if_num) { void *data_ptr; data_ptr = kmalloc(max_if_num * sizeof(unsigned long) * NUM_WORDS, GFP_ATOMIC); if (!data_ptr) - return -1; + return -ENOMEM; memcpy(data_ptr, orig_node->bcast_own, (max_if_num - 1) * sizeof(unsigned long) * NUM_WORDS); @@@ -501,7 -497,7 +499,7 @@@ data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC); if (!data_ptr) - return -1; + return -ENOMEM; memcpy(data_ptr, orig_node->bcast_own_sum, (max_if_num - 1) * sizeof(uint8_t)); @@@ -511,7 -507,7 +509,7 @@@ return 0; } -int orig_hash_add_if(struct hard_iface *hard_iface, int max_if_num) +int batadv_orig_hash_add_if(struct hard_iface *hard_iface, int max_if_num) { struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface); struct hashtable_t *hash = bat_priv->orig_hash; @@@ -522,18 -518,17 +520,18 @@@ int ret; /* resize all orig nodes because orig_node->bcast_own(_sum) depend on - * if_num */ + * if_num + */ for (i = 0; i < hash->size; i++) { head = &hash->table[i]; rcu_read_lock(); hlist_for_each_entry_rcu(orig_node, node, head, hash_entry) { spin_lock_bh(&orig_node->ogm_cnt_lock); - ret = orig_node_add_if(orig_node, max_if_num); + ret = batadv_orig_node_add_if(orig_node, max_if_num); spin_unlock_bh(&orig_node->ogm_cnt_lock); - if (ret == -1) + if (ret == -ENOMEM) goto err; } rcu_read_unlock(); @@@ -546,8 -541,8 +544,8 @@@ err return -ENOMEM; } -static int orig_node_del_if(struct orig_node *orig_node, - int max_if_num, int del_if_num) +static int batadv_orig_node_del_if(struct orig_node *orig_node, + int max_if_num, int del_if_num) { void *data_ptr = NULL; int chunk_size; @@@ -559,7 -554,7 +557,7 @@@ chunk_size = sizeof(unsigned long) * NUM_WORDS; data_ptr = kmalloc(max_if_num * chunk_size, GFP_ATOMIC); if (!data_ptr) - return -1; + return -ENOMEM; /* copy first part */ memcpy(data_ptr, orig_node->bcast_own, del_if_num * chunk_size); @@@ -578,7 -573,7 +576,7 @@@ free_bcast_own data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC); if (!data_ptr) - return -1; + return -ENOMEM; memcpy(data_ptr, orig_node->bcast_own_sum, del_if_num * sizeof(uint8_t)); @@@ -594,7 -589,7 +592,7 @@@ free_own_sum return 0; } -int orig_hash_del_if(struct hard_iface *hard_iface, int max_if_num) +int batadv_orig_hash_del_if(struct hard_iface *hard_iface, int max_if_num) { struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface); struct hashtable_t *hash = bat_priv->orig_hash; @@@ -606,19 -601,18 +604,19 @@@ int ret; /* resize all orig nodes because orig_node->bcast_own(_sum) depend on - * if_num */ + * if_num + */ for (i = 0; i < hash->size; i++) { head = &hash->table[i]; rcu_read_lock(); hlist_for_each_entry_rcu(orig_node, node, head, hash_entry) { spin_lock_bh(&orig_node->ogm_cnt_lock); - ret = orig_node_del_if(orig_node, max_if_num, - hard_iface->if_num); + ret = batadv_orig_node_del_if(orig_node, max_if_num, + hard_iface->if_num); spin_unlock_bh(&orig_node->ogm_cnt_lock); - if (ret == -1) + if (ret == -ENOMEM) goto err; } rcu_read_unlock(); @@@ -626,7 -620,7 +624,7 @@@ /* renumber remaining batman interfaces _inside_ of orig_hash_lock */ rcu_read_lock(); - list_for_each_entry_rcu(hard_iface_tmp, &hardif_list, list) { + list_for_each_entry_rcu(hard_iface_tmp, &batadv_hardif_list, list) { if (hard_iface_tmp->if_status == IF_NOT_IN_USE) continue; diff --combined packet.h index 44eed60,0ee1af7..205879e --- a/packet.h +++ b/packet.h @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: * * Marek Lindner, Simon Wunderlich * @@@ -15,6 -16,7 +15,6 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA - * */ #ifndef _NET_BATMAN_ADV_PACKET_H_ @@@ -23,22 -25,14 +23,14 @@@ #define ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */ enum bat_packettype { - BAT_IV_OGM = 0x01, - BAT_ICMP = 0x02, - BAT_UNICAST = 0x03, - BAT_BCAST = 0x04, - BAT_VIS = 0x05, - BAT_UNICAST_FRAG = 0x06, - BAT_TT_QUERY = 0x07, - BAT_ROAM_ADV = 0x08, - BAT_UNICAST_4ADDR = 0x09 - }; - - enum bat_subtype { - BAT_P_DATA = 0x01, - BAT_P_DAT_DHT_GET = 0x02, - BAT_P_DAT_DHT_PUT = 0x03, - BAT_P_DAT_CACHE_REPLY = 0x04 - BAT_IV_OGM = 0x01, - BAT_ICMP = 0x02, - BAT_UNICAST = 0x03, - BAT_BCAST = 0x04, - BAT_VIS = 0x05, ++ BAT_IV_OGM = 0x01, ++ BAT_ICMP = 0x02, ++ BAT_UNICAST = 0x03, ++ BAT_BCAST = 0x04, ++ BAT_VIS = 0x05, + BAT_UNICAST_FRAG = 0x06, - BAT_TT_QUERY = 0x07, - BAT_ROAM_ADV = 0x08 ++ BAT_TT_QUERY = 0x07, ++ BAT_ROAM_ADV = 0x08 }; /* this file is included by batctl which needs these defines */ @@@ -87,8 -81,7 +79,8 @@@ enum tt_query_flags /* TT_CLIENT flags. * Flags from 1 to 1 << 7 are sent on the wire, while flags from 1 << 8 to - * 1 << 15 are used for local computation only */ + * 1 << 15 are used for local computation only + */ enum tt_client_flags { TT_CLIENT_DEL = 1 << 0, TT_CLIENT_ROAM = 1 << 1, @@@ -112,7 -105,7 +104,7 @@@ enum bla_claimframe struct bla_claim_dst { uint8_t magic[3]; /* FF:43:05 */ uint8_t type; /* bla_claimframe */ - uint16_t group; /* group id */ + __be16 group; /* group id */ } __packed; struct batman_header { @@@ -124,14 -117,14 +116,14 @@@ struct batman_ogm_packet { struct batman_header header; uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */ - uint32_t seqno; + __be32 seqno; uint8_t orig[ETH_ALEN]; uint8_t prev_sender[ETH_ALEN]; uint8_t gw_flags; /* flags related to gateway class */ uint8_t tq; uint8_t tt_num_changes; uint8_t ttvn; /* translation table version number */ - uint16_t tt_crc; + __be16 tt_crc; } __packed; #define BATMAN_OGM_HLEN sizeof(struct batman_ogm_packet) @@@ -141,7 -134,7 +133,7 @@@ struct icmp_packet uint8_t msg_type; /* see ICMP message types above */ uint8_t dst[ETH_ALEN]; uint8_t orig[ETH_ALEN]; - uint16_t seqno; + __be16 seqno; uint8_t uid; uint8_t reserved; } __packed; @@@ -149,14 -142,13 +141,14 @@@ #define BAT_RR_LEN 16 /* icmp_packet_rr must start with all fields from imcp_packet - * as this is assumed by code that handles ICMP packets */ + * as this is assumed by code that handles ICMP packets + */ struct icmp_packet_rr { struct batman_header header; uint8_t msg_type; /* see ICMP message types above */ uint8_t dst[ETH_ALEN]; uint8_t orig[ETH_ALEN]; - uint16_t seqno; + __be16 seqno; uint8_t uid; uint8_t rr_cur; uint8_t rr[BAT_RR_LEN][ETH_ALEN]; @@@ -168,12 -160,6 +160,6 @@@ struct unicast_packet uint8_t dest[ETH_ALEN]; } __packed; - struct unicast_4addr_packet { - struct unicast_packet u; - uint8_t src[ETH_ALEN]; - uint8_t subtype; - } __packed; - struct unicast_frag_packet { struct batman_header header; uint8_t ttvn; /* destination translation table version number */ @@@ -181,20 -167,20 +167,20 @@@ uint8_t flags; uint8_t align; uint8_t orig[ETH_ALEN]; - uint16_t seqno; + __be16 seqno; } __packed; struct bcast_packet { struct batman_header header; uint8_t reserved; - uint32_t seqno; + __be32 seqno; uint8_t orig[ETH_ALEN]; } __packed; struct vis_packet { struct batman_header header; uint8_t vis_type; /* which type of vis-participant sent this? */ - uint32_t seqno; /* sequence number */ + __be32 seqno; /* sequence number */ uint8_t entries; /* number of entries behind this struct */ uint8_t reserved; uint8_t vis_orig[ETH_ALEN]; /* originator reporting its neighbors */ @@@ -206,8 -192,7 +192,8 @@@ struct tt_query_packet struct batman_header header; /* the flag field is a combination of: * - TT_REQUEST or TT_RESPONSE - * - TT_FULL_TABLE */ + * - TT_FULL_TABLE + */ uint8_t flags; uint8_t dst[ETH_ALEN]; uint8_t src[ETH_ALEN]; @@@ -215,15 -200,13 +201,15 @@@ * if TT_REQUEST: ttvn that triggered the * request * if TT_RESPONSE: new ttvn for the src - * orig_node */ + * orig_node + */ uint8_t ttvn; /* tt_data field is: * if TT_REQUEST: crc associated with the * ttvn - * if TT_RESPONSE: table_size */ - uint16_t tt_data; + * if TT_RESPONSE: table_size + */ + __be16 tt_data; } __packed; struct roam_adv_packet { diff --combined routing.c index c3160be,840e2c6..3bd3f80 --- a/routing.c +++ b/routing.c @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: * * Marek Lindner, Simon Wunderlich * @@@ -15,6 -16,7 +15,6 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA - * */ #include "main.h" @@@ -29,10 -31,10 +29,10 @@@ #include "unicast.h" #include "bridge_loop_avoidance.h" -static int route_unicast_packet(struct sk_buff *skb, - struct hard_iface *recv_if); +static int batadv_route_unicast_packet(struct sk_buff *skb, + struct hard_iface *recv_if); -void slide_own_bcast_window(struct hard_iface *hard_iface) +void batadv_slide_own_bcast_window(struct hard_iface *hard_iface) { struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface); struct hashtable_t *hash = bat_priv->orig_hash; @@@ -52,7 -54,7 +52,7 @@@ word_index = hard_iface->if_num * NUM_WORDS; word = &(orig_node->bcast_own[word_index]); - bit_get_packet(bat_priv, word, 1, 0); + batadv_bit_get_packet(bat_priv, word, 1, 0); orig_node->bcast_own_sum[hard_iface->if_num] = bitmap_weight(word, TQ_LOCAL_WINDOW_SIZE); spin_unlock_bh(&orig_node->ogm_cnt_lock); @@@ -61,37 -63,37 +61,37 @@@ } } -static void _update_route(struct bat_priv *bat_priv, - struct orig_node *orig_node, - struct neigh_node *neigh_node) +static void _batadv_update_route(struct bat_priv *bat_priv, + struct orig_node *orig_node, + struct neigh_node *neigh_node) { struct neigh_node *curr_router; - curr_router = orig_node_get_router(orig_node); + curr_router = batadv_orig_node_get_router(orig_node); /* route deleted */ if ((curr_router) && (!neigh_node)) { - bat_dbg(DBG_ROUTES, bat_priv, "Deleting route towards: %pM\n", - orig_node->orig); - tt_global_del_orig(bat_priv, orig_node, - "Deleted route towards originator"); + batadv_dbg(DBG_ROUTES, bat_priv, "Deleting route towards: %pM\n", + orig_node->orig); + batadv_tt_global_del_orig(bat_priv, orig_node, + "Deleted route towards originator"); /* route added */ } else if ((!curr_router) && (neigh_node)) { - bat_dbg(DBG_ROUTES, bat_priv, - "Adding route towards: %pM (via %pM)\n", - orig_node->orig, neigh_node->addr); + batadv_dbg(DBG_ROUTES, bat_priv, + "Adding route towards: %pM (via %pM)\n", + orig_node->orig, neigh_node->addr); /* route changed */ } else if (neigh_node && curr_router) { - bat_dbg(DBG_ROUTES, bat_priv, - "Changing route towards: %pM (now via %pM - was via %pM)\n", - orig_node->orig, neigh_node->addr, - curr_router->addr); + batadv_dbg(DBG_ROUTES, bat_priv, + "Changing route towards: %pM (now via %pM - was via %pM)\n", + orig_node->orig, neigh_node->addr, + curr_router->addr); } if (curr_router) - neigh_node_free_ref(curr_router); + batadv_neigh_node_free_ref(curr_router); /* increase refcount of new best neighbor */ if (neigh_node && !atomic_inc_not_zero(&neigh_node->refcount)) @@@ -103,30 -105,30 +103,30 @@@ /* decrease refcount of previous best neighbor */ if (curr_router) - neigh_node_free_ref(curr_router); + batadv_neigh_node_free_ref(curr_router); } -void update_route(struct bat_priv *bat_priv, struct orig_node *orig_node, - struct neigh_node *neigh_node) +void batadv_update_route(struct bat_priv *bat_priv, struct orig_node *orig_node, + struct neigh_node *neigh_node) { struct neigh_node *router = NULL; if (!orig_node) goto out; - router = orig_node_get_router(orig_node); + router = batadv_orig_node_get_router(orig_node); if (router != neigh_node) - _update_route(bat_priv, orig_node, neigh_node); + _batadv_update_route(bat_priv, orig_node, neigh_node); out: if (router) - neigh_node_free_ref(router); + batadv_neigh_node_free_ref(router); } /* caller must hold the neigh_list_lock */ -void bonding_candidate_del(struct orig_node *orig_node, - struct neigh_node *neigh_node) +void batadv_bonding_candidate_del(struct orig_node *orig_node, + struct neigh_node *neigh_node) { /* this neighbor is not part of our candidate list */ if (list_empty(&neigh_node->bonding_list)) @@@ -134,15 -136,15 +134,15 @@@ list_del_rcu(&neigh_node->bonding_list); INIT_LIST_HEAD(&neigh_node->bonding_list); - neigh_node_free_ref(neigh_node); + batadv_neigh_node_free_ref(neigh_node); atomic_dec(&orig_node->bond_candidates); out: return; } -void bonding_candidate_add(struct orig_node *orig_node, - struct neigh_node *neigh_node) +void batadv_bonding_candidate_add(struct orig_node *orig_node, + struct neigh_node *neigh_node) { struct hlist_node *node; struct neigh_node *tmp_neigh_node, *router = NULL; @@@ -151,11 -153,11 +151,11 @@@ spin_lock_bh(&orig_node->neigh_list_lock); /* only consider if it has the same primary address ... */ - if (!compare_eth(orig_node->orig, - neigh_node->orig_node->primary_addr)) + if (!batadv_compare_eth(orig_node->orig, + neigh_node->orig_node->primary_addr)) goto candidate_del; - router = orig_node_get_router(orig_node); + router = batadv_orig_node_get_router(orig_node); if (!router) goto candidate_del; @@@ -163,7 -165,8 +163,7 @@@ if (neigh_node->tq_avg < router->tq_avg - BONDING_TQ_THRESHOLD) goto candidate_del; - /** - * check if we have another candidate with the same mac address or + /* check if we have another candidate with the same mac address or * interface. If we do, we won't select this candidate because of * possible interference. */ @@@ -174,14 -177,12 +174,14 @@@ continue; /* we only care if the other candidate is even - * considered as candidate. */ + * considered as candidate. + */ if (list_empty(&tmp_neigh_node->bonding_list)) continue; if ((neigh_node->if_incoming == tmp_neigh_node->if_incoming) || - (compare_eth(neigh_node->addr, tmp_neigh_node->addr))) { + (batadv_compare_eth(neigh_node->addr, + tmp_neigh_node->addr))) { interference_candidate = 1; break; } @@@ -203,20 -204,19 +203,20 @@@ goto out; candidate_del: - bonding_candidate_del(orig_node, neigh_node); + batadv_bonding_candidate_del(orig_node, neigh_node); out: spin_unlock_bh(&orig_node->neigh_list_lock); if (router) - neigh_node_free_ref(router); + batadv_neigh_node_free_ref(router); } /* copy primary address for bonding */ -void bonding_save_primary(const struct orig_node *orig_node, - struct orig_node *orig_neigh_node, - const struct batman_ogm_packet *batman_ogm_packet) +void +batadv_bonding_save_primary(const struct orig_node *orig_node, + struct orig_node *orig_neigh_node, + const struct batman_ogm_packet *batman_ogm_packet) { if (!(batman_ogm_packet->flags & PRIMARIES_FIRST_HOP)) return; @@@ -229,25 -229,25 +229,25 @@@ * 0 if the packet is to be accepted * 1 if the packet is to be ignored. */ -int window_protected(struct bat_priv *bat_priv, int32_t seq_num_diff, - unsigned long *last_reset) +int batadv_window_protected(struct bat_priv *bat_priv, int32_t seq_num_diff, + unsigned long *last_reset) { if ((seq_num_diff <= -TQ_LOCAL_WINDOW_SIZE) || (seq_num_diff >= EXPECTED_SEQNO_RANGE)) { - if (!has_timed_out(*last_reset, RESET_PROTECTION_MS)) + if (!batadv_has_timed_out(*last_reset, RESET_PROTECTION_MS)) return 1; *last_reset = jiffies; - bat_dbg(DBG_BATMAN, bat_priv, - "old packet received, start protection\n"); + batadv_dbg(DBG_BATMAN, bat_priv, + "old packet received, start protection\n"); } return 0; } -bool check_management_packet(struct sk_buff *skb, - struct hard_iface *hard_iface, - int header_len) +bool batadv_check_management_packet(struct sk_buff *skb, + struct hard_iface *hard_iface, + int header_len) { struct ethhdr *ethhdr; @@@ -276,8 -276,8 +276,8 @@@ return true; } -static int recv_my_icmp_packet(struct bat_priv *bat_priv, - struct sk_buff *skb, size_t icmp_len) +static int batadv_recv_my_icmp_packet(struct bat_priv *bat_priv, + struct sk_buff *skb, size_t icmp_len) { struct hard_iface *primary_if = NULL; struct orig_node *orig_node = NULL; @@@ -289,21 -289,21 +289,21 @@@ /* add data to device queue */ if (icmp_packet->msg_type != ECHO_REQUEST) { - bat_socket_receive_packet(icmp_packet, icmp_len); + batadv_socket_receive_packet(icmp_packet, icmp_len); goto out; } - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) goto out; /* answer echo request (ping) */ /* get routing information */ - orig_node = orig_hash_find(bat_priv, icmp_packet->orig); + orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->orig); if (!orig_node) goto out; - router = orig_node_get_router(orig_node); + router = batadv_orig_node_get_router(orig_node); if (!router) goto out; @@@ -318,21 -318,21 +318,21 @@@ icmp_packet->msg_type = ECHO_REPLY; icmp_packet->header.ttl = TTL; - send_skb_packet(skb, router->if_incoming, router->addr); + batadv_send_skb_packet(skb, router->if_incoming, router->addr); ret = NET_RX_SUCCESS; out: if (primary_if) - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); if (router) - neigh_node_free_ref(router); + batadv_neigh_node_free_ref(router); if (orig_node) - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); return ret; } -static int recv_icmp_ttl_exceeded(struct bat_priv *bat_priv, - struct sk_buff *skb) +static int batadv_recv_icmp_ttl_exceeded(struct bat_priv *bat_priv, + struct sk_buff *skb) { struct hard_iface *primary_if = NULL; struct orig_node *orig_node = NULL; @@@ -349,16 -349,16 +349,16 @@@ goto out; } - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) goto out; /* get routing information */ - orig_node = orig_hash_find(bat_priv, icmp_packet->orig); + orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->orig); if (!orig_node) goto out; - router = orig_node_get_router(orig_node); + router = batadv_orig_node_get_router(orig_node); if (!router) goto out; @@@ -373,21 -373,21 +373,21 @@@ icmp_packet->msg_type = TTL_EXCEEDED; icmp_packet->header.ttl = TTL; - send_skb_packet(skb, router->if_incoming, router->addr); + batadv_send_skb_packet(skb, router->if_incoming, router->addr); ret = NET_RX_SUCCESS; out: if (primary_if) - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); if (router) - neigh_node_free_ref(router); + batadv_neigh_node_free_ref(router); if (orig_node) - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); return ret; } -int recv_icmp_packet(struct sk_buff *skb, struct hard_iface *recv_if) +int batadv_recv_icmp_packet(struct sk_buff *skb, struct hard_iface *recv_if) { struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface); struct icmp_packet_rr *icmp_packet; @@@ -397,7 -397,9 +397,7 @@@ int hdr_size = sizeof(struct icmp_packet); int ret = NET_RX_DROP; - /** - * we truncate all incoming icmp packets if they don't match our size - */ + /* we truncate all incoming icmp packets if they don't match our size */ if (skb->len >= sizeof(struct icmp_packet_rr)) hdr_size = sizeof(struct icmp_packet_rr); @@@ -416,7 -418,7 +416,7 @@@ goto out; /* not for me */ - if (!is_my_mac(ethhdr->h_dest)) + if (!batadv_is_my_mac(ethhdr->h_dest)) goto out; icmp_packet = (struct icmp_packet_rr *)skb->data; @@@ -430,19 -432,19 +430,19 @@@ } /* packet for me */ - if (is_my_mac(icmp_packet->dst)) - return recv_my_icmp_packet(bat_priv, skb, hdr_size); + if (batadv_is_my_mac(icmp_packet->dst)) + return batadv_recv_my_icmp_packet(bat_priv, skb, hdr_size); /* TTL exceeded */ if (icmp_packet->header.ttl < 2) - return recv_icmp_ttl_exceeded(bat_priv, skb); + return batadv_recv_icmp_ttl_exceeded(bat_priv, skb); /* get routing information */ - orig_node = orig_hash_find(bat_priv, icmp_packet->dst); + orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->dst); if (!orig_node) goto out; - router = orig_node_get_router(orig_node); + router = batadv_orig_node_get_router(orig_node); if (!router) goto out; @@@ -456,14 -458,14 +456,14 @@@ icmp_packet->header.ttl--; /* route it */ - send_skb_packet(skb, router->if_incoming, router->addr); + batadv_send_skb_packet(skb, router->if_incoming, router->addr); ret = NET_RX_SUCCESS; out: if (router) - neigh_node_free_ref(router); + batadv_neigh_node_free_ref(router); if (orig_node) - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); return ret; } @@@ -471,11 -473,9 +471,11 @@@ * robin fashion over the remaining interfaces. * * This method rotates the bonding list and increases the - * returned router's refcount. */ -static struct neigh_node *find_bond_router(struct orig_node *primary_orig, - const struct hard_iface *recv_if) + * returned router's refcount. + */ +static struct neigh_node * +batadv_find_bond_router(struct orig_node *primary_orig, + const struct hard_iface *recv_if) { struct neigh_node *tmp_neigh_node; struct neigh_node *router = NULL, *first_candidate = NULL; @@@ -506,12 -506,10 +506,12 @@@ goto out; /* selected should point to the next element - * after the current router */ + * after the current router + */ spin_lock_bh(&primary_orig->neigh_list_lock); /* this is a list_move(), which unfortunately - * does not exist as rcu version */ + * does not exist as rcu version + */ list_del_rcu(&primary_orig->bond_list); list_add_rcu(&primary_orig->bond_list, &router->bonding_list); @@@ -526,11 -524,9 +526,11 @@@ out * remaining candidates which are not using * this interface. * - * Increases the returned router's refcount */ -static struct neigh_node *find_ifalter_router(struct orig_node *primary_orig, - const struct hard_iface *recv_if) + * Increases the returned router's refcount + */ +static struct neigh_node * +batadv_find_ifalter_router(struct orig_node *primary_orig, + const struct hard_iface *recv_if) { struct neigh_node *tmp_neigh_node; struct neigh_node *router = NULL, *first_candidate = NULL; @@@ -549,21 -545,19 +549,21 @@@ continue; /* if we don't have a router yet - * or this one is better, choose it. */ + * or this one is better, choose it. + */ if ((!router) || (tmp_neigh_node->tq_avg > router->tq_avg)) { /* decrement refcount of - * previously selected router */ + * previously selected router + */ if (router) - neigh_node_free_ref(router); + batadv_neigh_node_free_ref(router); router = tmp_neigh_node; atomic_inc_not_zero(&router->refcount); } - neigh_node_free_ref(tmp_neigh_node); + batadv_neigh_node_free_ref(tmp_neigh_node); } /* use the first candidate if nothing was found. */ @@@ -575,13 -569,12 +575,13 @@@ return router; } -int recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if) +int batadv_recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if) { struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface); struct tt_query_packet *tt_query; - uint16_t tt_len; + uint16_t tt_size; struct ethhdr *ethhdr; + char tt_flag; /* drop packet if it has not necessary minimum size */ if (unlikely(!pskb_may_pull(skb, sizeof(struct tt_query_packet)))) @@@ -603,47 -596,43 +603,47 @@@ tt_query = (struct tt_query_packet *)skb->data; - tt_query->tt_data = ntohs(tt_query->tt_data); - switch (tt_query->flags & TT_QUERY_TYPE_MASK) { case TT_REQUEST: + batadv_inc_counter(bat_priv, BAT_CNT_TT_REQUEST_RX); + /* If we cannot provide an answer the tt_request is - * forwarded */ - if (!send_tt_response(bat_priv, tt_query)) { - bat_dbg(DBG_TT, bat_priv, - "Routing TT_REQUEST to %pM [%c]\n", - tt_query->dst, - (tt_query->flags & TT_FULL_TABLE ? 'F' : '.')); - tt_query->tt_data = htons(tt_query->tt_data); - return route_unicast_packet(skb, recv_if); + * forwarded + */ + if (!batadv_send_tt_response(bat_priv, tt_query)) { + tt_flag = tt_query->flags & TT_FULL_TABLE ? 'F' : '.'; + batadv_dbg(DBG_TT, bat_priv, + "Routing TT_REQUEST to %pM [%c]\n", + tt_query->dst, + tt_flag); + return batadv_route_unicast_packet(skb, recv_if); } break; case TT_RESPONSE: - if (is_my_mac(tt_query->dst)) { + batadv_inc_counter(bat_priv, BAT_CNT_TT_RESPONSE_RX); + + if (batadv_is_my_mac(tt_query->dst)) { /* packet needs to be linearized to access the TT - * changes */ + * changes + */ if (skb_linearize(skb) < 0) goto out; - tt_len = tt_query->tt_data * sizeof(struct tt_change); + tt_size = batadv_tt_len(ntohs(tt_query->tt_data)); /* Ensure we have all the claimed data */ if (unlikely(skb_headlen(skb) < - sizeof(struct tt_query_packet) + tt_len)) + sizeof(struct tt_query_packet) + tt_size)) goto out; - handle_tt_response(bat_priv, tt_query); + batadv_handle_tt_response(bat_priv, tt_query); } else { - bat_dbg(DBG_TT, bat_priv, - "Routing TT_RESPONSE to %pM [%c]\n", - tt_query->dst, - (tt_query->flags & TT_FULL_TABLE ? 'F' : '.')); - tt_query->tt_data = htons(tt_query->tt_data); - return route_unicast_packet(skb, recv_if); + tt_flag = tt_query->flags & TT_FULL_TABLE ? 'F' : '.'; + batadv_dbg(DBG_TT, bat_priv, + "Routing TT_RESPONSE to %pM [%c]\n", + tt_query->dst, + tt_flag); + return batadv_route_unicast_packet(skb, recv_if); } break; } @@@ -653,7 -642,7 +653,7 @@@ out return NET_RX_DROP; } -int recv_roam_adv(struct sk_buff *skb, struct hard_iface *recv_if) +int batadv_recv_roam_adv(struct sk_buff *skb, struct hard_iface *recv_if) { struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface); struct roam_adv_packet *roam_adv_packet; @@@ -674,39 -663,35 +674,39 @@@ if (is_broadcast_ether_addr(ethhdr->h_source)) goto out; + batadv_inc_counter(bat_priv, BAT_CNT_TT_ROAM_ADV_RX); + roam_adv_packet = (struct roam_adv_packet *)skb->data; - if (!is_my_mac(roam_adv_packet->dst)) - return route_unicast_packet(skb, recv_if); + if (!batadv_is_my_mac(roam_adv_packet->dst)) + return batadv_route_unicast_packet(skb, recv_if); /* check if it is a backbone gateway. we don't accept * roaming advertisement from it, as it has the same * entries as we have. */ - if (bla_is_backbone_gw_orig(bat_priv, roam_adv_packet->src)) + if (batadv_bla_is_backbone_gw_orig(bat_priv, roam_adv_packet->src)) goto out; - orig_node = orig_hash_find(bat_priv, roam_adv_packet->src); + orig_node = batadv_orig_hash_find(bat_priv, roam_adv_packet->src); if (!orig_node) goto out; - bat_dbg(DBG_TT, bat_priv, - "Received ROAMING_ADV from %pM (client %pM)\n", - roam_adv_packet->src, roam_adv_packet->client); + batadv_dbg(DBG_TT, bat_priv, + "Received ROAMING_ADV from %pM (client %pM)\n", + roam_adv_packet->src, roam_adv_packet->client); - tt_global_add(bat_priv, orig_node, roam_adv_packet->client, - atomic_read(&orig_node->last_ttvn) + 1, true, false); + batadv_tt_global_add(bat_priv, orig_node, roam_adv_packet->client, + atomic_read(&orig_node->last_ttvn) + 1, true, + false); /* Roaming phase starts: I have new information but the ttvn has not * been incremented yet. This flag will make me check all the incoming - * packets for the correct destination. */ + * packets for the correct destination. + */ bat_priv->tt_poss_change = true; - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); out: /* returning NET_RX_DROP will make the caller function kfree the skb */ return NET_RX_DROP; @@@ -714,29 -699,26 +714,29 @@@ /* find a suitable router for this originator, and use * bonding if possible. increases the found neighbors - * refcount.*/ -struct neigh_node *find_router(struct bat_priv *bat_priv, - struct orig_node *orig_node, - const struct hard_iface *recv_if) + * refcount. + */ +struct neigh_node *batadv_find_router(struct bat_priv *bat_priv, + struct orig_node *orig_node, + const struct hard_iface *recv_if) { struct orig_node *primary_orig_node; struct orig_node *router_orig; struct neigh_node *router; static uint8_t zero_mac[ETH_ALEN] = {0, 0, 0, 0, 0, 0}; int bonding_enabled; + uint8_t *primary_addr; if (!orig_node) return NULL; - router = orig_node_get_router(orig_node); + router = batadv_orig_node_get_router(orig_node); if (!router) goto err; /* without bonding, the first node should - * always choose the default router. */ + * always choose the default router. + */ bonding_enabled = atomic_read(&bat_priv->bonding); rcu_read_lock(); @@@ -748,44 -730,40 +748,44 @@@ if ((!recv_if) && (!bonding_enabled)) goto return_router; + primary_addr = router_orig->primary_addr; + /* if we have something in the primary_addr, we can search - * for a potential bonding candidate. */ - if (compare_eth(router_orig->primary_addr, zero_mac)) + * for a potential bonding candidate. + */ + if (batadv_compare_eth(primary_addr, zero_mac)) goto return_router; /* find the orig_node which has the primary interface. might - * even be the same as our router_orig in many cases */ - - if (compare_eth(router_orig->primary_addr, router_orig->orig)) { + * even be the same as our router_orig in many cases + */ + if (batadv_compare_eth(primary_addr, router_orig->orig)) { primary_orig_node = router_orig; } else { - primary_orig_node = orig_hash_find(bat_priv, - router_orig->primary_addr); + primary_orig_node = batadv_orig_hash_find(bat_priv, + primary_addr); if (!primary_orig_node) goto return_router; - orig_node_free_ref(primary_orig_node); + batadv_orig_node_free_ref(primary_orig_node); } /* with less than 2 candidates, we can't do any - * bonding and prefer the original router. */ + * bonding and prefer the original router. + */ if (atomic_read(&primary_orig_node->bond_candidates) < 2) goto return_router; /* all nodes between should choose a candidate which * is is not on the interface where the packet came - * in. */ - - neigh_node_free_ref(router); + * in. + */ + batadv_neigh_node_free_ref(router); if (bonding_enabled) - router = find_bond_router(primary_orig_node, recv_if); + router = batadv_find_bond_router(primary_orig_node, recv_if); else - router = find_ifalter_router(primary_orig_node, recv_if); + router = batadv_find_ifalter_router(primary_orig_node, recv_if); return_router: if (router && router->if_incoming->if_status != IF_ACTIVE) @@@ -797,11 -775,11 +797,11 @@@ err_unlock rcu_read_unlock(); err: if (router) - neigh_node_free_ref(router); + batadv_neigh_node_free_ref(router); return NULL; } -static int check_unicast_packet(struct sk_buff *skb, int hdr_size) +static int batadv_check_unicast_packet(struct sk_buff *skb, int hdr_size) { struct ethhdr *ethhdr; @@@ -820,14 -798,13 +820,14 @@@ return -1; /* not for me */ - if (!is_my_mac(ethhdr->h_dest)) + if (!batadv_is_my_mac(ethhdr->h_dest)) return -1; return 0; } -static int route_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if) +static int batadv_route_unicast_packet(struct sk_buff *skb, + struct hard_iface *recv_if) { struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface); struct orig_node *orig_node = NULL; @@@ -847,13 -824,13 +847,13 @@@ } /* get routing information */ - orig_node = orig_hash_find(bat_priv, unicast_packet->dest); + orig_node = batadv_orig_hash_find(bat_priv, unicast_packet->dest); if (!orig_node) goto out; /* find_router() increases neigh_nodes refcount if found. */ - neigh_node = find_router(bat_priv, orig_node, recv_if); + neigh_node = batadv_find_router(bat_priv, orig_node, recv_if); if (!neigh_node) goto out; @@@ -867,17 -844,15 +867,17 @@@ if (unicast_packet->header.packet_type == BAT_UNICAST && atomic_read(&bat_priv->fragmentation) && skb->len > neigh_node->if_incoming->net_dev->mtu) { - ret = frag_send_skb(skb, bat_priv, - neigh_node->if_incoming, neigh_node->addr); + ret = batadv_frag_send_skb(skb, bat_priv, + neigh_node->if_incoming, + neigh_node->addr); goto out; } if (unicast_packet->header.packet_type == BAT_UNICAST_FRAG && - frag_can_reassemble(skb, neigh_node->if_incoming->net_dev->mtu)) { + batadv_frag_can_reassemble(skb, + neigh_node->if_incoming->net_dev->mtu)) { - ret = frag_reassemble_skb(skb, bat_priv, &new_skb); + ret = batadv_frag_reassemble_skb(skb, bat_priv, &new_skb); if (ret == NET_RX_DROP) goto out; @@@ -895,32 -870,26 +895,32 @@@ /* decrement ttl */ unicast_packet->header.ttl--; + /* Update stats counter */ + batadv_inc_counter(bat_priv, BAT_CNT_FORWARD); + batadv_add_counter(bat_priv, BAT_CNT_FORWARD_BYTES, + skb->len + ETH_HLEN); + /* route it */ - send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); + batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = NET_RX_SUCCESS; out: if (neigh_node) - neigh_node_free_ref(neigh_node); + batadv_neigh_node_free_ref(neigh_node); if (orig_node) - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); return ret; } -static int check_unicast_ttvn(struct bat_priv *bat_priv, - struct sk_buff *skb) { +static int batadv_check_unicast_ttvn(struct bat_priv *bat_priv, + struct sk_buff *skb) { uint8_t curr_ttvn; struct orig_node *orig_node; struct ethhdr *ethhdr; struct hard_iface *primary_if; struct unicast_packet *unicast_packet; bool tt_poss_change; + int is_old_ttvn; /* I could need to modify it */ if (skb_cow(skb, sizeof(struct unicast_packet)) < 0) @@@ -928,24 -897,22 +928,24 @@@ unicast_packet = (struct unicast_packet *)skb->data; - if (is_my_mac(unicast_packet->dest)) { + if (batadv_is_my_mac(unicast_packet->dest)) { tt_poss_change = bat_priv->tt_poss_change; curr_ttvn = (uint8_t)atomic_read(&bat_priv->ttvn); } else { - orig_node = orig_hash_find(bat_priv, unicast_packet->dest); + orig_node = batadv_orig_hash_find(bat_priv, + unicast_packet->dest); if (!orig_node) return 0; curr_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn); tt_poss_change = orig_node->tt_poss_change; - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); } /* Check whether I have to reroute the packet */ - if (seq_before(unicast_packet->ttvn, curr_ttvn) || tt_poss_change) { + is_old_ttvn = batadv_seq_before(unicast_packet->ttvn, curr_ttvn); + if (is_old_ttvn || tt_poss_change) { /* check if there is enough data before accessing it */ if (pskb_may_pull(skb, sizeof(struct unicast_packet) + ETH_HLEN) < 0) @@@ -957,70 -924,62 +957,66 @@@ /* we don't have an updated route for this client, so we should * not try to reroute the packet!! */ - if (tt_global_client_is_roaming(bat_priv, ethhdr->h_dest)) + if (batadv_tt_global_client_is_roaming(bat_priv, + ethhdr->h_dest)) return 1; - orig_node = transtable_search(bat_priv, NULL, ethhdr->h_dest); + orig_node = batadv_transtable_search(bat_priv, NULL, + ethhdr->h_dest); if (!orig_node) { - if (!is_my_client(bat_priv, ethhdr->h_dest)) + if (!batadv_is_my_client(bat_priv, ethhdr->h_dest)) return 0; - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) return 0; memcpy(unicast_packet->dest, primary_if->net_dev->dev_addr, ETH_ALEN); - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); } else { memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN); curr_ttvn = (uint8_t) atomic_read(&orig_node->last_ttvn); - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); } - bat_dbg(DBG_ROUTES, bat_priv, - "TTVN mismatch (old_ttvn %u new_ttvn %u)! Rerouting unicast packet (for %pM) to %pM\n", - unicast_packet->ttvn, curr_ttvn, ethhdr->h_dest, - unicast_packet->dest); + batadv_dbg(DBG_ROUTES, bat_priv, + "TTVN mismatch (old_ttvn %u new_ttvn %u)! Rerouting unicast packet (for %pM) to %pM\n", + unicast_packet->ttvn, curr_ttvn, ethhdr->h_dest, + unicast_packet->dest); unicast_packet->ttvn = curr_ttvn; } return 1; } -int recv_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if) +int batadv_recv_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if) { struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface); struct unicast_packet *unicast_packet; int hdr_size = sizeof(*unicast_packet); - unicast_packet = (struct unicast_packet *)skb->data; - - /* the caller function should have already pulled 2 bytes */ - if (unicast_packet->header.packet_type == BAT_UNICAST_4ADDR) - hdr_size = sizeof(struct unicast_4addr_packet); - - if (check_unicast_packet(skb, hdr_size) < 0) + if (batadv_check_unicast_packet(skb, hdr_size) < 0) return NET_RX_DROP; - if (!check_unicast_ttvn(bat_priv, skb)) + if (!batadv_check_unicast_ttvn(bat_priv, skb)) return NET_RX_DROP; + unicast_packet = (struct unicast_packet *)skb->data; + /* packet for me */ - if (is_my_mac(unicast_packet->dest)) { - interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size); + if (batadv_is_my_mac(unicast_packet->dest)) { + batadv_interface_rx(recv_if->soft_iface, skb, recv_if, + hdr_size); return NET_RX_SUCCESS; } - return route_unicast_packet(skb, recv_if); + return batadv_route_unicast_packet(skb, recv_if); } -int recv_ucast_frag_packet(struct sk_buff *skb, struct hard_iface *recv_if) +int batadv_recv_ucast_frag_packet(struct sk_buff *skb, + struct hard_iface *recv_if) { struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface); struct unicast_frag_packet *unicast_packet; @@@ -1028,18 -987,18 +1024,18 @@@ struct sk_buff *new_skb = NULL; int ret; - if (check_unicast_packet(skb, hdr_size) < 0) + if (batadv_check_unicast_packet(skb, hdr_size) < 0) return NET_RX_DROP; - if (!check_unicast_ttvn(bat_priv, skb)) + if (!batadv_check_unicast_ttvn(bat_priv, skb)) return NET_RX_DROP; unicast_packet = (struct unicast_frag_packet *)skb->data; /* packet for me */ - if (is_my_mac(unicast_packet->dest)) { + if (batadv_is_my_mac(unicast_packet->dest)) { - ret = frag_reassemble_skb(skb, bat_priv, &new_skb); + ret = batadv_frag_reassemble_skb(skb, bat_priv, &new_skb); if (ret == NET_RX_DROP) return NET_RX_DROP; @@@ -1048,16 -1007,16 +1044,16 @@@ if (!new_skb) return NET_RX_SUCCESS; - interface_rx(recv_if->soft_iface, new_skb, recv_if, - sizeof(struct unicast_packet)); + batadv_interface_rx(recv_if->soft_iface, new_skb, recv_if, + sizeof(struct unicast_packet)); return NET_RX_SUCCESS; } - return route_unicast_packet(skb, recv_if); + return batadv_route_unicast_packet(skb, recv_if); } -int recv_bcast_packet(struct sk_buff *skb, struct hard_iface *recv_if) +int batadv_recv_bcast_packet(struct sk_buff *skb, struct hard_iface *recv_if) { struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface); struct orig_node *orig_node = NULL; @@@ -1082,19 -1041,19 +1078,19 @@@ goto out; /* ignore broadcasts sent by myself */ - if (is_my_mac(ethhdr->h_source)) + if (batadv_is_my_mac(ethhdr->h_source)) goto out; bcast_packet = (struct bcast_packet *)skb->data; /* ignore broadcasts originated by myself */ - if (is_my_mac(bcast_packet->orig)) + if (batadv_is_my_mac(bcast_packet->orig)) goto out; if (bcast_packet->header.ttl < 2) goto out; - orig_node = orig_hash_find(bat_priv, bcast_packet->orig); + orig_node = batadv_orig_hash_find(bat_priv, bcast_packet->orig); if (!orig_node) goto out; @@@ -1102,40 -1061,39 +1098,40 @@@ spin_lock_bh(&orig_node->bcast_seqno_lock); /* check whether the packet is a duplicate */ - if (bat_test_bit(orig_node->bcast_bits, orig_node->last_bcast_seqno, - ntohl(bcast_packet->seqno))) + if (batadv_test_bit(orig_node->bcast_bits, orig_node->last_bcast_seqno, + ntohl(bcast_packet->seqno))) goto spin_unlock; seq_diff = ntohl(bcast_packet->seqno) - orig_node->last_bcast_seqno; /* check whether the packet is old and the host just restarted. */ - if (window_protected(bat_priv, seq_diff, - &orig_node->bcast_seqno_reset)) + if (batadv_window_protected(bat_priv, seq_diff, + &orig_node->bcast_seqno_reset)) goto spin_unlock; /* mark broadcast in flood history, update window position - * if required. */ - if (bit_get_packet(bat_priv, orig_node->bcast_bits, seq_diff, 1)) + * if required. + */ + if (batadv_bit_get_packet(bat_priv, orig_node->bcast_bits, seq_diff, 1)) orig_node->last_bcast_seqno = ntohl(bcast_packet->seqno); spin_unlock_bh(&orig_node->bcast_seqno_lock); /* check whether this has been sent by another originator before */ - if (bla_check_bcast_duplist(bat_priv, bcast_packet, hdr_size)) + if (batadv_bla_check_bcast_duplist(bat_priv, bcast_packet, hdr_size)) goto out; /* rebroadcast packet */ - add_bcast_packet_to_list(bat_priv, skb, 1); + batadv_add_bcast_packet_to_list(bat_priv, skb, 1); /* don't hand the broadcast up if it is from an originator * from the same backbone. */ - if (bla_is_backbone_gw(skb, orig_node, hdr_size)) + if (batadv_bla_is_backbone_gw(skb, orig_node, hdr_size)) goto out; /* broadcast for me */ - interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size); + batadv_interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size); ret = NET_RX_SUCCESS; goto out; @@@ -1143,11 -1101,11 +1139,11 @@@ spin_unlock spin_unlock_bh(&orig_node->bcast_seqno_lock); out: if (orig_node) - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); return ret; } -int recv_vis_packet(struct sk_buff *skb, struct hard_iface *recv_if) +int batadv_recv_vis_packet(struct sk_buff *skb, struct hard_iface *recv_if) { struct vis_packet *vis_packet; struct ethhdr *ethhdr; @@@ -1165,25 -1123,25 +1161,25 @@@ ethhdr = (struct ethhdr *)skb_mac_header(skb); /* not for me */ - if (!is_my_mac(ethhdr->h_dest)) + if (!batadv_is_my_mac(ethhdr->h_dest)) return NET_RX_DROP; /* ignore own packets */ - if (is_my_mac(vis_packet->vis_orig)) + if (batadv_is_my_mac(vis_packet->vis_orig)) return NET_RX_DROP; - if (is_my_mac(vis_packet->sender_orig)) + if (batadv_is_my_mac(vis_packet->sender_orig)) return NET_RX_DROP; switch (vis_packet->vis_type) { case VIS_TYPE_SERVER_SYNC: - receive_server_sync_packet(bat_priv, vis_packet, - skb_headlen(skb)); + batadv_receive_server_sync_packet(bat_priv, vis_packet, + skb_headlen(skb)); break; case VIS_TYPE_CLIENT_UPDATE: - receive_client_update_packet(bat_priv, vis_packet, - skb_headlen(skb)); + batadv_receive_client_update_packet(bat_priv, vis_packet, + skb_headlen(skb)); break; default: /* ignore unknown packet */ @@@ -1191,7 -1149,6 +1187,7 @@@ } /* We take a copy of the data in the packet, so we should - always free the skbuf. */ + * always free the skbuf. + */ return NET_RX_DROP; } diff --combined send.c index d38fe2a,f47299f..3d725e0 --- a/send.c +++ b/send.c @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: * * Marek Lindner, Simon Wunderlich * @@@ -15,10 -16,10 +15,9 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA */ #include "main.h" - #include "distributed-arp-table.h" #include "send.h" #include "routing.h" #include "translation-table.h" @@@ -28,13 -29,12 +27,13 @@@ #include "gateway_common.h" #include "originator.h" -static void send_outstanding_bcast_packet(struct work_struct *work); +static void batadv_send_outstanding_bcast_packet(struct work_struct *work); /* send out an already prepared packet to the given address via the - * specified batman interface */ -int send_skb_packet(struct sk_buff *skb, struct hard_iface *hard_iface, - const uint8_t *dst_addr) + * specified batman interface + */ +int batadv_send_skb_packet(struct sk_buff *skb, struct hard_iface *hard_iface, + const uint8_t *dst_addr) { struct ethhdr *ethhdr; @@@ -51,7 -51,7 +50,7 @@@ } /* push to the ethernet header. */ - if (my_skb_head_push(skb, ETH_HLEN) < 0) + if (batadv_skb_head_push(skb, ETH_HLEN) < 0) goto send_skb_err; skb_reset_mac_header(skb); @@@ -69,23 -69,77 +68,23 @@@ /* dev_queue_xmit() returns a negative result on error. However on * congestion and traffic shaping, it drops and returns NET_XMIT_DROP - * (which is > 0). This will not be treated as an error. */ - + * (which is > 0). This will not be treated as an error. + */ return dev_queue_xmit(skb); send_skb_err: kfree_skb(skb); return NET_XMIT_DROP; } -static void realloc_packet_buffer(struct hard_iface *hard_iface, - int new_len) -{ - unsigned char *new_buff; - - new_buff = kmalloc(new_len, GFP_ATOMIC); - - /* keep old buffer if kmalloc should fail */ - if (new_buff) { - memcpy(new_buff, hard_iface->packet_buff, - BATMAN_OGM_HLEN); - - kfree(hard_iface->packet_buff); - hard_iface->packet_buff = new_buff; - hard_iface->packet_len = new_len; - } -} - -/* when calling this function (hard_iface == primary_if) has to be true */ -static int prepare_packet_buffer(struct bat_priv *bat_priv, - struct hard_iface *hard_iface) -{ - int new_len; - - new_len = BATMAN_OGM_HLEN + - tt_len((uint8_t)atomic_read(&bat_priv->tt_local_changes)); - - /* if we have too many changes for one packet don't send any - * and wait for the tt table request which will be fragmented */ - if (new_len > hard_iface->soft_iface->mtu) - new_len = BATMAN_OGM_HLEN; - - realloc_packet_buffer(hard_iface, new_len); - - atomic_set(&bat_priv->tt_crc, tt_local_crc(bat_priv)); - - /* reset the sending counter */ - atomic_set(&bat_priv->tt_ogm_append_cnt, TT_OGM_APPEND_MAX); - - return tt_changes_fill_buffer(bat_priv, - hard_iface->packet_buff + BATMAN_OGM_HLEN, - hard_iface->packet_len - BATMAN_OGM_HLEN); -} - -static int reset_packet_buffer(struct bat_priv *bat_priv, - struct hard_iface *hard_iface) -{ - realloc_packet_buffer(hard_iface, BATMAN_OGM_HLEN); - return 0; -} - -void schedule_bat_ogm(struct hard_iface *hard_iface) +void batadv_schedule_bat_ogm(struct hard_iface *hard_iface) { struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface); - struct hard_iface *primary_if; - int tt_num_changes = -1; if ((hard_iface->if_status == IF_NOT_IN_USE) || (hard_iface->if_status == IF_TO_BE_REMOVED)) return; - /** - * the interface gets activated here to avoid race conditions between + /* the interface gets activated here to avoid race conditions between * the moment of activating the interface in * hardif_activate_interface() where the originator mac is set and * outdated packets (especially uninitialized mac addresses) in the @@@ -94,21 -148,40 +93,21 @@@ if (hard_iface->if_status == IF_TO_BE_ACTIVATED) hard_iface->if_status = IF_ACTIVE; - primary_if = primary_if_get_selected(bat_priv); - - if (hard_iface == primary_if) { - /* if at least one change happened */ - if (atomic_read(&bat_priv->tt_local_changes) > 0) { - tt_commit_changes(bat_priv); - tt_num_changes = prepare_packet_buffer(bat_priv, - hard_iface); - } - - /* if the changes have been sent often enough */ - if (!atomic_dec_not_zero(&bat_priv->tt_ogm_append_cnt)) - tt_num_changes = reset_packet_buffer(bat_priv, - hard_iface); - } - - if (primary_if) - hardif_free_ref(primary_if); - - bat_priv->bat_algo_ops->bat_ogm_schedule(hard_iface, tt_num_changes); + bat_priv->bat_algo_ops->bat_ogm_schedule(hard_iface); } -static void forw_packet_free(struct forw_packet *forw_packet) +static void batadv_forw_packet_free(struct forw_packet *forw_packet) { if (forw_packet->skb) kfree_skb(forw_packet->skb); if (forw_packet->if_incoming) - hardif_free_ref(forw_packet->if_incoming); + batadv_hardif_free_ref(forw_packet->if_incoming); kfree(forw_packet); } -static void _add_bcast_packet_to_list(struct bat_priv *bat_priv, - struct forw_packet *forw_packet, - unsigned long send_time) +static void _batadv_add_bcast_packet_to_list(struct bat_priv *bat_priv, + struct forw_packet *forw_packet, + unsigned long send_time) { INIT_HLIST_NODE(&forw_packet->list); @@@ -119,8 -192,8 +118,8 @@@ /* start timer for this packet */ INIT_DELAYED_WORK(&forw_packet->delayed_work, - send_outstanding_bcast_packet); - queue_delayed_work(bat_event_workqueue, &forw_packet->delayed_work, + batadv_send_outstanding_bcast_packet); + queue_delayed_work(batadv_event_workqueue, &forw_packet->delayed_work, send_time); } @@@ -131,23 -204,21 +130,23 @@@ * errors. * * The skb is not consumed, so the caller should make sure that the - * skb is freed. */ -int add_bcast_packet_to_list(struct bat_priv *bat_priv, - const struct sk_buff *skb, unsigned long delay) + * skb is freed. + */ +int batadv_add_bcast_packet_to_list(struct bat_priv *bat_priv, + const struct sk_buff *skb, + unsigned long delay) { struct hard_iface *primary_if = NULL; struct forw_packet *forw_packet; struct bcast_packet *bcast_packet; struct sk_buff *newskb; - if (!atomic_dec_not_zero(&bat_priv->bcast_queue_left)) { - bat_dbg(DBG_BATMAN, bat_priv, "bcast packet queue full\n"); + if (!batadv_atomic_dec_not_zero(&bat_priv->bcast_queue_left)) { + batadv_dbg(DBG_BATMAN, bat_priv, "bcast packet queue full\n"); goto out; } - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) goto out_and_inc; @@@ -172,7 -243,7 +171,7 @@@ /* how often did we send the bcast packet ? */ forw_packet->num_packets = 0; - _add_bcast_packet_to_list(bat_priv, forw_packet, delay); + _batadv_add_bcast_packet_to_list(bat_priv, forw_packet, delay); return NETDEV_TX_OK; packet_free: @@@ -181,11 -252,11 +180,11 @@@ out_and_inc atomic_inc(&bat_priv->bcast_queue_left); out: if (primary_if) - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); return NETDEV_TX_BUSY; } -static void send_outstanding_bcast_packet(struct work_struct *work) +static void batadv_send_outstanding_bcast_packet(struct work_struct *work) { struct hard_iface *hard_iface; struct delayed_work *delayed_work = @@@ -203,20 -274,16 +202,17 @@@ if (atomic_read(&bat_priv->mesh_state) == MESH_DEACTIVATING) goto out; - if (batadv_dat_drop_broadcast_packet(bat_priv, forw_packet)) - goto out; - /* rebroadcast packet */ rcu_read_lock(); - list_for_each_entry_rcu(hard_iface, &hardif_list, list) { + list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) { if (hard_iface->soft_iface != soft_iface) continue; /* send a copy of the saved skb */ skb1 = skb_clone(forw_packet->skb, GFP_ATOMIC); if (skb1) - send_skb_packet(skb1, hard_iface, broadcast_addr); + batadv_send_skb_packet(skb1, hard_iface, + batadv_broadcast_addr); } rcu_read_unlock(); @@@ -224,17 -291,17 +220,17 @@@ /* if we still have some more bcasts to send */ if (forw_packet->num_packets < 3) { - _add_bcast_packet_to_list(bat_priv, forw_packet, - msecs_to_jiffies(5)); + _batadv_add_bcast_packet_to_list(bat_priv, forw_packet, + msecs_to_jiffies(5)); return; } out: - forw_packet_free(forw_packet); + batadv_forw_packet_free(forw_packet); atomic_inc(&bat_priv->bcast_queue_left); } -void send_outstanding_bat_ogm_packet(struct work_struct *work) +void batadv_send_outstanding_bat_ogm_packet(struct work_struct *work) { struct delayed_work *delayed_work = container_of(work, struct delayed_work, work); @@@ -252,42 -319,44 +248,42 @@@ bat_priv->bat_algo_ops->bat_ogm_emit(forw_packet); - /** - * we have to have at least one packet in the queue + /* we have to have at least one packet in the queue * to determine the queues wake up time unless we are * shutting down */ if (forw_packet->own) - schedule_bat_ogm(forw_packet->if_incoming); + batadv_schedule_bat_ogm(forw_packet->if_incoming); out: /* don't count own packet */ if (!forw_packet->own) atomic_inc(&bat_priv->batman_queue_left); - forw_packet_free(forw_packet); + batadv_forw_packet_free(forw_packet); } -void purge_outstanding_packets(struct bat_priv *bat_priv, - const struct hard_iface *hard_iface) +void batadv_purge_outstanding_packets(struct bat_priv *bat_priv, + const struct hard_iface *hard_iface) { struct forw_packet *forw_packet; struct hlist_node *tmp_node, *safe_tmp_node; bool pending; if (hard_iface) - bat_dbg(DBG_BATMAN, bat_priv, - "purge_outstanding_packets(): %s\n", - hard_iface->net_dev->name); + batadv_dbg(DBG_BATMAN, bat_priv, + "purge_outstanding_packets(): %s\n", + hard_iface->net_dev->name); else - bat_dbg(DBG_BATMAN, bat_priv, - "purge_outstanding_packets()\n"); + batadv_dbg(DBG_BATMAN, bat_priv, + "purge_outstanding_packets()\n"); /* free bcast list */ spin_lock_bh(&bat_priv->forw_bcast_list_lock); hlist_for_each_entry_safe(forw_packet, tmp_node, safe_tmp_node, &bat_priv->forw_bcast_list, list) { - /** - * if purge_outstanding_packets() was called with an argument + /* if purge_outstanding_packets() was called with an argument * we delete only packets belonging to the given interface */ if ((hard_iface) && @@@ -296,7 -365,8 +292,7 @@@ spin_unlock_bh(&bat_priv->forw_bcast_list_lock); - /** - * send_outstanding_bcast_packet() will lock the list to + /* batadv_send_outstanding_bcast_packet() will lock the list to * delete the item from the list */ pending = cancel_delayed_work_sync(&forw_packet->delayed_work); @@@ -304,7 -374,7 +300,7 @@@ if (pending) { hlist_del(&forw_packet->list); - forw_packet_free(forw_packet); + batadv_forw_packet_free(forw_packet); } } spin_unlock_bh(&bat_priv->forw_bcast_list_lock); @@@ -314,7 -384,8 +310,7 @@@ hlist_for_each_entry_safe(forw_packet, tmp_node, safe_tmp_node, &bat_priv->forw_bat_list, list) { - /** - * if purge_outstanding_packets() was called with an argument + /* if purge_outstanding_packets() was called with an argument * we delete only packets belonging to the given interface */ if ((hard_iface) && @@@ -323,7 -394,8 +319,7 @@@ spin_unlock_bh(&bat_priv->forw_bat_list_lock); - /** - * send_outstanding_bat_packet() will lock the list to + /* send_outstanding_bat_packet() will lock the list to * delete the item from the list */ pending = cancel_delayed_work_sync(&forw_packet->delayed_work); @@@ -331,7 -403,7 +327,7 @@@ if (pending) { hlist_del(&forw_packet->list); - forw_packet_free(forw_packet); + batadv_forw_packet_free(forw_packet); } } spin_unlock_bh(&bat_priv->forw_bat_list_lock); diff --combined soft-interface.c index 9b4c0d0,6e2530b..2de1d74 --- a/soft-interface.c +++ b/soft-interface.c @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: * * Marek Lindner, Simon Wunderlich * @@@ -15,12 -16,12 +15,11 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA - * */ #include "main.h" #include "soft-interface.h" #include "hard-interface.h" - #include "distributed-arp-table.h" #include "routing.h" #include "send.h" #include "bat_debugfs.h" @@@ -38,33 -39,27 +37,33 @@@ #include "bridge_loop_avoidance.h" -static int bat_get_settings(struct net_device *dev, struct ethtool_cmd *cmd); -static void bat_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *info); -static u32 bat_get_msglevel(struct net_device *dev); -static void bat_set_msglevel(struct net_device *dev, u32 value); -static u32 bat_get_link(struct net_device *dev); - -static const struct ethtool_ops bat_ethtool_ops = { - .get_settings = bat_get_settings, - .get_drvinfo = bat_get_drvinfo, - .get_msglevel = bat_get_msglevel, - .set_msglevel = bat_set_msglevel, - .get_link = bat_get_link, +static int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd); +static void batadv_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info); +static u32 batadv_get_msglevel(struct net_device *dev); +static void batadv_set_msglevel(struct net_device *dev, u32 value); +static u32 batadv_get_link(struct net_device *dev); +static void batadv_get_strings(struct net_device *dev, u32 stringset, u8 *data); +static void batadv_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *stats, u64 *data); +static int batadv_get_sset_count(struct net_device *dev, int stringset); + +static const struct ethtool_ops batadv_ethtool_ops = { + .get_settings = batadv_get_settings, + .get_drvinfo = batadv_get_drvinfo, + .get_msglevel = batadv_get_msglevel, + .set_msglevel = batadv_set_msglevel, + .get_link = batadv_get_link, + .get_strings = batadv_get_strings, + .get_ethtool_stats = batadv_get_ethtool_stats, + .get_sset_count = batadv_get_sset_count, }; -int my_skb_head_push(struct sk_buff *skb, unsigned int len) +int batadv_skb_head_push(struct sk_buff *skb, unsigned int len) { int result; - /** - * TODO: We must check if we can release all references to non-payload + /* TODO: We must check if we can release all references to non-payload * data using skb_header_release in our skbs to allow skb_cow_header to * work optimally. This means that those skbs are not allowed to read * or write any data which is before the current position of skb->data @@@ -79,25 -74,25 +78,25 @@@ return 0; } -static int interface_open(struct net_device *dev) +static int batadv_interface_open(struct net_device *dev) { netif_start_queue(dev); return 0; } -static int interface_release(struct net_device *dev) +static int batadv_interface_release(struct net_device *dev) { netif_stop_queue(dev); return 0; } -static struct net_device_stats *interface_stats(struct net_device *dev) +static struct net_device_stats *batadv_interface_stats(struct net_device *dev) { struct bat_priv *bat_priv = netdev_priv(dev); return &bat_priv->stats; } -static int interface_set_mac_addr(struct net_device *dev, void *p) +static int batadv_interface_set_mac_addr(struct net_device *dev, void *p) { struct bat_priv *bat_priv = netdev_priv(dev); struct sockaddr *addr = p; @@@ -107,9 -102,9 +106,9 @@@ /* only modify transtable if it has been initialized before */ if (atomic_read(&bat_priv->mesh_state) == MESH_ACTIVE) { - tt_local_remove(bat_priv, dev->dev_addr, - "mac address changed", false); - tt_local_add(dev, addr->sa_data, NULL_IFINDEX); + batadv_tt_local_remove(bat_priv, dev->dev_addr, + "mac address changed", false); + batadv_tt_local_add(dev, addr->sa_data, NULL_IFINDEX); } memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); @@@ -117,10 -112,10 +116,10 @@@ return 0; } -static int interface_change_mtu(struct net_device *dev, int new_mtu) +static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu) { /* check ranges */ - if ((new_mtu < 68) || (new_mtu > hardif_min_mtu(dev))) + if ((new_mtu < 68) || (new_mtu > batadv_hardif_min_mtu(dev))) return -EINVAL; dev->mtu = new_mtu; @@@ -128,8 -123,7 +127,8 @@@ return 0; } -static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface) +static int batadv_interface_tx(struct sk_buff *skb, + struct net_device *soft_iface) { struct ethhdr *ethhdr = (struct ethhdr *)skb->data; struct bat_priv *bat_priv = netdev_priv(soft_iface); @@@ -142,7 -136,6 +141,6 @@@ int data_len = skb->len, ret; short vid __maybe_unused = -1; bool do_bcast = false; - unsigned long brd_delay = 1; if (atomic_read(&bat_priv->mesh_state) != MESH_ACTIVE) goto dropped; @@@ -162,16 -155,16 +160,16 @@@ goto dropped; } - if (bla_tx(bat_priv, skb, vid)) + if (batadv_bla_tx(bat_priv, skb, vid)) goto dropped; /* Register the client MAC in the transtable */ - tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif); + batadv_tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif); /* don't accept stp packets. STP does not help in meshes. * better use the bridge loop avoidance ... */ - if (compare_eth(ethhdr->h_dest, stp_addr)) + if (batadv_compare_eth(ethhdr->h_dest, stp_addr)) goto dropped; if (is_multicast_ether_addr(ethhdr->h_dest)) { @@@ -180,17 -173,15 +178,17 @@@ switch (atomic_read(&bat_priv->gw_mode)) { case GW_MODE_SERVER: /* gateway servers should not send dhcp - * requests into the mesh */ - ret = gw_is_dhcp_target(skb, &header_len); + * requests into the mesh + */ + ret = batadv_gw_is_dhcp_target(skb, &header_len); if (ret) goto dropped; break; case GW_MODE_CLIENT: /* gateway clients should send dhcp requests - * via unicast to their gateway */ - ret = gw_is_dhcp_target(skb, &header_len); + * via unicast to their gateway + */ + ret = batadv_gw_is_dhcp_target(skb, &header_len); if (ret) do_bcast = false; break; @@@ -202,14 -193,11 +200,11 @@@ /* ethernet packet should be broadcasted */ if (do_bcast) { - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) goto dropped; - if (batadv_dat_snoop_outgoing_arp_request(bat_priv, skb)) - brd_delay = msecs_to_jiffies(ARP_REQ_DELAY); - - if (my_skb_head_push(skb, sizeof(*bcast_packet)) < 0) + if (batadv_skb_head_push(skb, sizeof(*bcast_packet)) < 0) goto dropped; bcast_packet = (struct bcast_packet *)skb->data; @@@ -220,8 -208,7 +215,8 @@@ bcast_packet->header.packet_type = BAT_BCAST; /* hw address of first interface is the orig mac because only - * this mac is known throughout the mesh */ + * this mac is known throughout the mesh + */ memcpy(bcast_packet->orig, primary_if->net_dev->dev_addr, ETH_ALEN); @@@ -229,24 -216,21 +224,22 @@@ bcast_packet->seqno = htonl(atomic_inc_return(&bat_priv->bcast_seqno)); - batadv_add_bcast_packet_to_list(bat_priv, skb, brd_delay); - add_bcast_packet_to_list(bat_priv, skb, 1); ++ batadv_add_bcast_packet_to_list(bat_priv, skb, 1); /* a copy is stored in the bcast list, therefore removing - * the original skb. */ + * the original skb. + */ kfree_skb(skb); /* unicast packet */ } else { if (atomic_read(&bat_priv->gw_mode) != GW_MODE_OFF) { - ret = gw_out_of_range(bat_priv, skb, ethhdr); + ret = batadv_gw_out_of_range(bat_priv, skb, ethhdr); if (ret) goto dropped; } - batadv_dat_snoop_outgoing_arp_reply(bat_priv, skb); - - ret = unicast_send_skb(skb, bat_priv); + ret = batadv_unicast_send_skb(skb, bat_priv); if (ret != 0) goto dropped_freed; } @@@ -261,13 -245,13 +254,13 @@@ dropped_freed bat_priv->stats.tx_dropped++; end: if (primary_if) - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); return NETDEV_TX_OK; } -void interface_rx(struct net_device *soft_iface, - struct sk_buff *skb, struct hard_iface *recv_if, - int hdr_size) +void batadv_interface_rx(struct net_device *soft_iface, + struct sk_buff *skb, struct hard_iface *recv_if, + int hdr_size) { struct bat_priv *bat_priv = netdev_priv(soft_iface); struct ethhdr *ethhdr; @@@ -278,12 -262,6 +271,6 @@@ if (!pskb_may_pull(skb, hdr_size)) goto dropped; - if (batadv_dat_snoop_incoming_arp_request(bat_priv, skb, hdr_size)) - goto out; - - if (batadv_dat_snoop_incoming_arp_reply(bat_priv, skb, hdr_size)) - goto out; - skb_pull_rcsum(skb, hdr_size); skb_reset_mac_header(skb); @@@ -309,23 -287,22 +296,23 @@@ /* should not be necessary anymore as we use skb_pull_rcsum() * TODO: please verify this and remove this TODO - * -- Dec 21st 2009, Simon Wunderlich */ + * -- Dec 21st 2009, Simon Wunderlich + */ -/* skb->ip_summed = CHECKSUM_UNNECESSARY;*/ + /* skb->ip_summed = CHECKSUM_UNNECESSARY; */ bat_priv->stats.rx_packets++; bat_priv->stats.rx_bytes += skb->len + ETH_HLEN; soft_iface->last_rx = jiffies; - if (is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest)) + if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest)) goto dropped; /* Let the bridge loop avoidance check the packet. If will * not handle it, we can safely push it up. */ - if (bla_rx(bat_priv, skb, vid)) + if (batadv_bla_rx(bat_priv, skb, vid)) goto out; netif_rx(skb); @@@ -337,27 -314,28 +324,27 @@@ out return; } -static const struct net_device_ops bat_netdev_ops = { - .ndo_open = interface_open, - .ndo_stop = interface_release, - .ndo_get_stats = interface_stats, - .ndo_set_mac_address = interface_set_mac_addr, - .ndo_change_mtu = interface_change_mtu, - .ndo_start_xmit = interface_tx, +static const struct net_device_ops batadv_netdev_ops = { + .ndo_open = batadv_interface_open, + .ndo_stop = batadv_interface_release, + .ndo_get_stats = batadv_interface_stats, + .ndo_set_mac_address = batadv_interface_set_mac_addr, + .ndo_change_mtu = batadv_interface_change_mtu, + .ndo_start_xmit = batadv_interface_tx, .ndo_validate_addr = eth_validate_addr }; -static void interface_setup(struct net_device *dev) +static void batadv_interface_setup(struct net_device *dev) { struct bat_priv *priv = netdev_priv(dev); ether_setup(dev); - dev->netdev_ops = &bat_netdev_ops; + dev->netdev_ops = &batadv_netdev_ops; dev->destructor = free_netdev; dev->tx_queue_len = 0; - /** - * can't call min_mtu, because the needed variables + /* can't call min_mtu, because the needed variables * have not been initialized yet */ dev->mtu = ETH_DATA_LEN; @@@ -367,19 -345,18 +354,19 @@@ /* generate random address */ eth_hw_addr_random(dev); - SET_ETHTOOL_OPS(dev, &bat_ethtool_ops); + SET_ETHTOOL_OPS(dev, &batadv_ethtool_ops); memset(priv, 0, sizeof(*priv)); } -struct net_device *softif_create(const char *name) +struct net_device *batadv_softif_create(const char *name) { struct net_device *soft_iface; struct bat_priv *bat_priv; int ret; - soft_iface = alloc_netdev(sizeof(*bat_priv), name, interface_setup); + soft_iface = alloc_netdev(sizeof(*bat_priv), name, + batadv_interface_setup); if (!soft_iface) goto out; @@@ -391,8 -368,6 +378,6 @@@ goto free_soft_iface; } - batadv_arp_change_timeout(soft_iface, name); - bat_priv = netdev_priv(soft_iface); atomic_set(&bat_priv->aggregated_ogms, 1); @@@ -424,35 -399,28 +409,35 @@@ bat_priv->primary_if = NULL; bat_priv->num_ifaces = 0; - ret = bat_algo_select(bat_priv, bat_routing_algo); - if (ret < 0) + bat_priv->bat_counters = __alloc_percpu(sizeof(uint64_t) * BAT_CNT_NUM, + __alignof__(uint64_t)); + if (!bat_priv->bat_counters) goto unreg_soft_iface; - ret = sysfs_add_meshif(soft_iface); + ret = batadv_algo_select(bat_priv, batadv_routing_algo); if (ret < 0) - goto unreg_soft_iface; + goto free_bat_counters; + + ret = batadv_sysfs_add_meshif(soft_iface); + if (ret < 0) + goto free_bat_counters; - ret = debugfs_add_meshif(soft_iface); + ret = batadv_debugfs_add_meshif(soft_iface); if (ret < 0) goto unreg_sysfs; - ret = mesh_init(soft_iface); + ret = batadv_mesh_init(soft_iface); if (ret < 0) goto unreg_debugfs; return soft_iface; unreg_debugfs: - debugfs_del_meshif(soft_iface); + batadv_debugfs_del_meshif(soft_iface); unreg_sysfs: - sysfs_del_meshif(soft_iface); + batadv_sysfs_del_meshif(soft_iface); +free_bat_counters: + free_percpu(bat_priv->bat_counters); unreg_soft_iface: unregister_netdevice(soft_iface); return NULL; @@@ -463,24 -431,24 +448,24 @@@ out return NULL; } -void softif_destroy(struct net_device *soft_iface) +void batadv_softif_destroy(struct net_device *soft_iface) { - debugfs_del_meshif(soft_iface); - sysfs_del_meshif(soft_iface); - mesh_free(soft_iface); + batadv_debugfs_del_meshif(soft_iface); + batadv_sysfs_del_meshif(soft_iface); + batadv_mesh_free(soft_iface); unregister_netdevice(soft_iface); } -int softif_is_valid(const struct net_device *net_dev) +int batadv_softif_is_valid(const struct net_device *net_dev) { - if (net_dev->netdev_ops->ndo_start_xmit == interface_tx) + if (net_dev->netdev_ops->ndo_start_xmit == batadv_interface_tx) return 1; return 0; } /* ethtool */ -static int bat_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +static int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { cmd->supported = 0; cmd->advertising = 0; @@@ -496,8 -464,8 +481,8 @@@ return 0; } -static void bat_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *info) +static void batadv_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) { strcpy(info->driver, "B.A.T.M.A.N. advanced"); strcpy(info->version, SOURCE_VERSION); @@@ -505,70 -473,16 +490,64 @@@ strcpy(info->bus_info, "batman"); } -static u32 bat_get_msglevel(struct net_device *dev) +static u32 batadv_get_msglevel(struct net_device *dev) { return -EOPNOTSUPP; } -static void bat_set_msglevel(struct net_device *dev, u32 value) +static void batadv_set_msglevel(struct net_device *dev, u32 value) { } -static u32 bat_get_link(struct net_device *dev) +static u32 batadv_get_link(struct net_device *dev) { return 1; } + +/* Inspired by drivers/net/ethernet/dlink/sundance.c:1702 + * Declare each description string in struct.name[] to get fixed sized buffer + * and compile time checking for strings longer than ETH_GSTRING_LEN. + */ +static const struct { + const char name[ETH_GSTRING_LEN]; +} batadv_counters_strings[] = { + { "forward" }, + { "forward_bytes" }, + { "mgmt_tx" }, + { "mgmt_tx_bytes" }, + { "mgmt_rx" }, + { "mgmt_rx_bytes" }, + { "tt_request_tx" }, + { "tt_request_rx" }, + { "tt_response_tx" }, + { "tt_response_rx" }, + { "tt_roam_adv_tx" }, + { "tt_roam_adv_rx" }, - #ifdef CONFIG_BATMAN_ADV_DAT - { "dat_request_tx" }, - { "dat_request_rx" }, - { "dat_reply_tx" }, - { "dat_reply_rx" }, - #endif +}; + +static void batadv_get_strings(struct net_device *dev, uint32_t stringset, + uint8_t *data) +{ + if (stringset == ETH_SS_STATS) + memcpy(data, batadv_counters_strings, + sizeof(batadv_counters_strings)); +} + +static void batadv_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *stats, + uint64_t *data) +{ + struct bat_priv *bat_priv = netdev_priv(dev); + int i; + + for (i = 0; i < BAT_CNT_NUM; i++) + data[i] = batadv_sum_counter(bat_priv, i); +} + +static int batadv_get_sset_count(struct net_device *dev, int stringset) +{ + if (stringset == ETH_SS_STATS) + return BAT_CNT_NUM; + + return -EOPNOTSUPP; +} diff --combined types.h index 73aaef9,61308e8..053c5d4 --- a/types.h +++ b/types.h @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: * * Marek Lindner, Simon Wunderlich * @@@ -15,25 -16,17 +15,14 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA - * */ - - #ifndef _NET_BATMAN_ADV_TYPES_H_ #define _NET_BATMAN_ADV_TYPES_H_ #include "packet.h" #include "bitarray.h" - #ifdef CONFIG_BATMAN_ADV_DAT - - /* dat_addr_t is the type used for all DHT addresses. If it is changed, - * DAT_ADDR_MAX is changed as well. - * - * *Please be careful: dat_addr_t must be UNSIGNED* - */ - typedef uint16_t dat_addr_t; - - #endif /* CONFIG_BATMAN_ADV_DAT */ - #define BAT_HEADER_LEN (ETH_HLEN + \ ((sizeof(struct unicast_packet) > sizeof(struct bcast_packet) ? \ sizeof(struct unicast_packet) : \ @@@ -56,7 -49,8 +45,7 @@@ struct hard_iface struct rcu_head rcu; }; -/** - * orig_node - structure for orig_list maintaining nodes of mesh +/* orig_node - structure for orig_list maintaining nodes of mesh * @primary_addr: hosts primary interface address * @last_seen: when last packet from this node was received * @bcast_seqno_reset: time when the broadcast seqno window was reset @@@ -73,9 -67,6 +62,6 @@@ struct orig_node { uint8_t orig[ETH_ALEN]; uint8_t primary_addr[ETH_ALEN]; - #ifdef CONFIG_BATMAN_ADV_DAT - dat_addr_t dht_addr; - #endif struct neigh_node __rcu *router; /* rcu protected pointer */ unsigned long *bcast_own; uint8_t *bcast_own_sum; @@@ -95,8 -86,7 +81,8 @@@ * If true, then I sent a Roaming_adv to this orig_node and I have to * inspect every packet directed to it to check whether it is still * the true destination or not. This flag will be reset to false as - * soon as I receive a new TTVN from this orig_node */ + * soon as I receive a new TTVN from this orig_node + */ bool tt_poss_change; uint32_t last_real_seqno; uint8_t last_ttl; @@@ -111,8 -101,7 +97,8 @@@ struct bat_priv *bat_priv; unsigned long last_frag_packet; /* ogm_cnt_lock protects: bcast_own, bcast_own_sum, - * neigh_node->real_bits, neigh_node->real_packet_count */ + * neigh_node->real_bits, neigh_node->real_packet_count + */ spinlock_t ogm_cnt_lock; /* bcast_seqno_lock protects bcast_bits, last_bcast_seqno */ spinlock_t bcast_seqno_lock; @@@ -129,7 -118,8 +115,7 @@@ struct gw_node struct rcu_head rcu; }; -/** - * neigh_node +/* neigh_node * @last_seen: when last packet via this neighbor was received */ struct neigh_node { @@@ -158,32 -148,9 +144,26 @@@ struct bcast_duplist_entry }; #endif +enum bat_counters { + BAT_CNT_FORWARD, + BAT_CNT_FORWARD_BYTES, + BAT_CNT_MGMT_TX, + BAT_CNT_MGMT_TX_BYTES, + BAT_CNT_MGMT_RX, + BAT_CNT_MGMT_RX_BYTES, + BAT_CNT_TT_REQUEST_TX, + BAT_CNT_TT_REQUEST_RX, + BAT_CNT_TT_RESPONSE_TX, + BAT_CNT_TT_RESPONSE_RX, + BAT_CNT_TT_ROAM_ADV_TX, + BAT_CNT_TT_ROAM_ADV_RX, - #ifdef CONFIG_BATMAN_ADV_DAT - BAT_CNT_DAT_REQUEST_TX, - BAT_CNT_DAT_REQUEST_RX, - BAT_CNT_DAT_REPLY_TX, - BAT_CNT_DAT_REPLY_RX, - #endif + BAT_CNT_NUM, +}; + struct bat_priv { atomic_t mesh_state; struct net_device_stats stats; + uint64_t __percpu *bat_counters; /* Per cpu counters */ atomic_t aggregated_ogms; /* boolean */ atomic_t bonding; /* boolean */ atomic_t fragmentation; /* boolean */ @@@ -207,8 -174,7 +187,8 @@@ * If true, then I received a Roaming_adv and I have to inspect every * packet directed to me to check whether I am still the true * destination or not. This flag will be reset to false as soon as I - * increase my TTVN */ + * increase my TTVN + */ bool tt_poss_change; char num_ifaces; struct debug_log *debug_log; @@@ -244,7 -210,7 +224,7 @@@ spinlock_t vis_list_lock; /* protects vis_info::recv_list */ atomic_t num_local_tt; /* Checksum of the local table, recomputed before sending a new OGM */ - atomic_t tt_crc; + uint16_t tt_crc; unsigned char *tt_buff; int16_t tt_buff_len; spinlock_t tt_buff_lock; /* protects tt_buff */ @@@ -255,9 -221,6 +235,6 @@@ struct gw_node __rcu *curr_gw; /* rcu protected pointer */ atomic_t gw_reselect; struct hard_iface __rcu *primary_if; /* rcu protected pointer */ - #ifdef CONFIG_BATMAN_ADV_DAT - dat_addr_t dht_addr; - #endif struct vis_info *my_vis_info; struct bat_algo_ops *bat_algo_ops; }; @@@ -346,7 -309,8 +323,7 @@@ struct tt_roam_node struct list_head list; }; -/** - * forw_packet - structure for forw_list maintaining packets to be +/* forw_packet - structure for forw_list maintaining packets to be * send/forwarded */ struct forw_packet { @@@ -388,8 -352,7 +365,8 @@@ struct frag_packet_list_entry struct vis_info { unsigned long first_seen; /* list of server-neighbors we received a vis-packet - * from. we should not reply to them. */ + * from. we should not reply to them. + */ struct list_head recv_list; struct list_head send_list; struct kref refcount; @@@ -397,7 -360,7 +374,7 @@@ struct bat_priv *bat_priv; /* this packet might be part of the vis send queue. */ struct sk_buff *skb_packet; - /* vis_info may follow here*/ + /* vis_info may follow here */ } __packed; struct vis_info_entry { @@@ -425,14 -388,10 +402,9 @@@ struct bat_algo_ops /* called when primary interface is selected / changed */ void (*bat_primary_iface_set)(struct hard_iface *hard_iface); /* prepare a new outgoing OGM for the send queue */ - void (*bat_ogm_schedule)(struct hard_iface *hard_iface, - int tt_num_changes); + void (*bat_ogm_schedule)(struct hard_iface *hard_iface); /* send scheduled OGM */ void (*bat_ogm_emit)(struct forw_packet *forw_packet); }; - struct dht_candidate { - int type; - struct orig_node *orig_node; - }; - #endif /* _NET_BATMAN_ADV_TYPES_H_ */ diff --combined unicast.c index bc2f897,74175c2..f7a8cde --- a/unicast.c +++ b/unicast.c @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2010-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2010-2012 B.A.T.M.A.N. contributors: * * Andreas Langer * @@@ -15,6 -16,7 +15,6 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA - * */ #include "main.h" @@@ -29,10 -31,9 +29,10 @@@ #include "hard-interface.h" -static struct sk_buff *frag_merge_packet(struct list_head *head, - struct frag_packet_list_entry *tfp, - struct sk_buff *skb) +static struct sk_buff * +batadv_frag_merge_packet(struct list_head *head, + struct frag_packet_list_entry *tfp, + struct sk_buff *skb) { struct unicast_frag_packet *up = (struct unicast_frag_packet *)skb->data; @@@ -76,8 -77,7 +76,8 @@@ err return NULL; } -static void frag_create_entry(struct list_head *head, struct sk_buff *skb) +static void batadv_frag_create_entry(struct list_head *head, + struct sk_buff *skb) { struct frag_packet_list_entry *tfp; struct unicast_frag_packet *up = @@@ -93,7 -93,7 +93,7 @@@ return; } -static int frag_create_buffer(struct list_head *head) +static int batadv_frag_create_buffer(struct list_head *head) { int i; struct frag_packet_list_entry *tfp; @@@ -101,7 -101,7 +101,7 @@@ for (i = 0; i < FRAG_BUFFER_SIZE; i++) { tfp = kmalloc(sizeof(*tfp), GFP_ATOMIC); if (!tfp) { - frag_list_free(head); + batadv_frag_list_free(head); return -ENOMEM; } tfp->skb = NULL; @@@ -113,9 -113,8 +113,9 @@@ return 0; } -static struct frag_packet_list_entry *frag_search_packet(struct list_head *head, - const struct unicast_frag_packet *up) +static struct frag_packet_list_entry * +batadv_frag_search_packet(struct list_head *head, + const struct unicast_frag_packet *up) { struct frag_packet_list_entry *tfp; struct unicast_frag_packet *tmp_up = NULL; @@@ -152,7 -151,7 +152,7 @@@ mov_tail return NULL; } -void frag_list_free(struct list_head *head) +void batadv_frag_list_free(struct list_head *head) { struct frag_packet_list_entry *pf, *tmp_pf; @@@ -173,8 -172,8 +173,8 @@@ * or the skb could be reassembled (skb_new will point to the new packet and * skb was freed) */ -int frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv, - struct sk_buff **new_skb) +int batadv_frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv, + struct sk_buff **new_skb) { struct orig_node *orig_node; struct frag_packet_list_entry *tmp_frag_entry; @@@ -184,41 -183,41 +184,41 @@@ *new_skb = NULL; - orig_node = orig_hash_find(bat_priv, unicast_packet->orig); + orig_node = batadv_orig_hash_find(bat_priv, unicast_packet->orig); if (!orig_node) goto out; orig_node->last_frag_packet = jiffies; if (list_empty(&orig_node->frag_list) && - frag_create_buffer(&orig_node->frag_list)) { + batadv_frag_create_buffer(&orig_node->frag_list)) { pr_debug("couldn't create frag buffer\n"); goto out; } - tmp_frag_entry = frag_search_packet(&orig_node->frag_list, - unicast_packet); + tmp_frag_entry = batadv_frag_search_packet(&orig_node->frag_list, + unicast_packet); if (!tmp_frag_entry) { - frag_create_entry(&orig_node->frag_list, skb); + batadv_frag_create_entry(&orig_node->frag_list, skb); ret = NET_RX_SUCCESS; goto out; } - *new_skb = frag_merge_packet(&orig_node->frag_list, tmp_frag_entry, - skb); + *new_skb = batadv_frag_merge_packet(&orig_node->frag_list, + tmp_frag_entry, skb); /* if not, merge failed */ if (*new_skb) ret = NET_RX_SUCCESS; out: if (orig_node) - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); return ret; } -int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv, - struct hard_iface *hard_iface, const uint8_t dstaddr[]) +int batadv_frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv, + struct hard_iface *hard_iface, const uint8_t dstaddr[]) { struct unicast_packet tmp_uc, *unicast_packet; struct hard_iface *primary_if; @@@ -230,7 -229,7 +230,7 @@@ int large_tail = 0, ret = NET_RX_DROP; uint16_t seqno; - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) goto dropped; @@@ -243,8 -242,8 +243,8 @@@ memcpy(&tmp_uc, unicast_packet, uc_hdr_len); skb_split(skb, frag_skb, data_len / 2 + uc_hdr_len); - if (my_skb_head_push(skb, ucf_hdr_len - uc_hdr_len) < 0 || - my_skb_head_push(frag_skb, ucf_hdr_len) < 0) + if (batadv_skb_head_push(skb, ucf_hdr_len - uc_hdr_len) < 0 || + batadv_skb_head_push(frag_skb, ucf_hdr_len) < 0) goto drop_frag; frag1 = (struct unicast_frag_packet *)skb->data; @@@ -269,8 -268,8 +269,8 @@@ frag1->seqno = htons(seqno - 1); frag2->seqno = htons(seqno); - send_skb_packet(skb, hard_iface, dstaddr); - send_skb_packet(frag_skb, hard_iface, dstaddr); + batadv_send_skb_packet(skb, hard_iface, dstaddr); + batadv_send_skb_packet(frag_skb, hard_iface, dstaddr); ret = NET_RX_SUCCESS; goto out; @@@ -280,152 -279,85 +280,86 @@@ dropped kfree_skb(skb); out: if (primary_if) - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); return ret; } - static bool batadv_pull_and_fill_unicast(struct sk_buff *skb, int hdr_size, - struct orig_node *orig_node) - { - struct unicast_packet *unicast_packet; - - if (batadv_skb_head_push(skb, hdr_size) < 0) - return false; - - unicast_packet = (struct unicast_packet *)skb->data; - unicast_packet->header.version = COMPAT_VERSION; - /* batman packet type: unicast */ - unicast_packet->header.packet_type = BAT_UNICAST; - /* set unicast ttl */ - unicast_packet->header.ttl = TTL; - /* copy the destination for faster routing */ - memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN); - /* set the destination tt version number */ - unicast_packet->ttvn = - (uint8_t)atomic_read(&orig_node->last_ttvn); - - return true; - } - - static bool batadv_prepare_unicast_packet(struct sk_buff *skb, - struct orig_node *orig_node) - { - return batadv_pull_and_fill_unicast(skb, sizeof(struct unicast_packet), - orig_node); - } - - bool batadv_prepare_unicast_4addr_packet(struct bat_priv *bat_priv, - struct sk_buff *skb, - struct orig_node *orig_node, - int packet_subtype) - { - struct hard_iface *primary_if; - struct unicast_4addr_packet *unicast_4addr_packet; - bool ret = false; - - primary_if = batadv_primary_if_get_selected(bat_priv); - if (!primary_if) - goto out; - - /* pull the header space and fill the unicast_packet substructure. - * We can do that because the first member of the unicast_4addr_packet - * is of type struct unicast_packet - */ - if (!batadv_pull_and_fill_unicast(skb, sizeof(*unicast_4addr_packet), - orig_node)) - goto out; - - unicast_4addr_packet = (struct unicast_4addr_packet *)skb->data; - unicast_4addr_packet->u.header.packet_type = BAT_UNICAST_4ADDR; - memcpy(unicast_4addr_packet->src, primary_if->net_dev->dev_addr, - ETH_ALEN); - unicast_4addr_packet->subtype = packet_subtype; - - ret = true; - out: - if (primary_if) - batadv_hardif_free_ref(primary_if); - return ret; - } - - int batadv_unicast_generic_send_skb(struct sk_buff *skb, - struct bat_priv *bat_priv, - int packet_type, int packet_subtype) -int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv) ++int batadv_unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv) { struct ethhdr *ethhdr = (struct ethhdr *)skb->data; + struct unicast_packet *unicast_packet; struct orig_node *orig_node; struct neigh_node *neigh_node; int data_len = skb->len; - struct unicast_packet *unicast_packet; int ret = 1; /* get routing information */ if (is_multicast_ether_addr(ethhdr->h_dest)) { - orig_node = gw_get_selected_orig(bat_priv); + orig_node = batadv_gw_get_selected_orig(bat_priv); if (orig_node) goto find_router; } /* check for tt host - increases orig_node refcount. - * returns NULL in case of AP isolation */ - orig_node = transtable_search(bat_priv, ethhdr->h_source, - ethhdr->h_dest); + * returns NULL in case of AP isolation + */ + orig_node = batadv_transtable_search(bat_priv, ethhdr->h_source, + ethhdr->h_dest); + find_router: - /** - * find_router(): + /* find_router(): * - if orig_node is NULL it returns NULL * - increases neigh_nodes refcount if found. */ - neigh_node = find_router(bat_priv, orig_node, NULL); + neigh_node = batadv_find_router(bat_priv, orig_node, NULL); + if (!neigh_node) goto out; - switch (packet_type) { - case BAT_UNICAST: - batadv_prepare_unicast_packet(skb, orig_node); - break; - case BAT_UNICAST_4ADDR: - batadv_prepare_unicast_4addr_packet(bat_priv, skb, orig_node, - packet_subtype); - break; - default: - /* this function supports UNICAST and UNICAST_4ADDR only. It - * should never be invoked with any other packet type - */ - if (my_skb_head_push(skb, sizeof(*unicast_packet)) < 0) ++ if (batadv_skb_head_push(skb, sizeof(*unicast_packet)) < 0) goto out; unicast_packet = (struct unicast_packet *)skb->data; + unicast_packet->header.version = COMPAT_VERSION; + /* batman packet type: unicast */ + unicast_packet->header.packet_type = BAT_UNICAST; + /* set unicast ttl */ + unicast_packet->header.ttl = TTL; + /* copy the destination for faster routing */ + memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN); + /* set the destination tt version number */ + unicast_packet->ttvn = + (uint8_t)atomic_read(&orig_node->last_ttvn); + /* inform the destination node that we are still missing a correct route * for this client. The destination will receive this packet and will * try to reroute it because the ttvn contained in the header is less * than the current one */ - if (tt_global_client_is_roaming(bat_priv, ethhdr->h_dest)) + if (batadv_tt_global_client_is_roaming(bat_priv, ethhdr->h_dest)) unicast_packet->ttvn = unicast_packet->ttvn - 1; - /* fragmentation mechanism only works for UNICAST (now) */ - if (packet_type == BAT_UNICAST && - atomic_read(&bat_priv->fragmentation) && + if (atomic_read(&bat_priv->fragmentation) && data_len + sizeof(*unicast_packet) > neigh_node->if_incoming->net_dev->mtu) { /* send frag skb decreases ttl */ unicast_packet->header.ttl++; - ret = frag_send_skb(skb, bat_priv, - neigh_node->if_incoming, neigh_node->addr); + ret = batadv_frag_send_skb(skb, bat_priv, + neigh_node->if_incoming, + neigh_node->addr); goto out; } - send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); + batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = 0; + goto out; out: if (neigh_node) - neigh_node_free_ref(neigh_node); + batadv_neigh_node_free_ref(neigh_node); if (orig_node) - orig_node_free_ref(orig_node); + batadv_orig_node_free_ref(orig_node); if (ret == 1) kfree_skb(skb); return ret; diff --combined unicast.h index a9a71af,a9faf6b..9257b83 --- a/unicast.h +++ b/unicast.h @@@ -1,4 -1,5 +1,4 @@@ -/* - * Copyright (C) 2010-2012 B.A.T.M.A.N. contributors: +/* Copyright (C) 2010-2012 B.A.T.M.A.N. contributors: * * Andreas Langer * @@@ -15,6 -16,7 +15,6 @@@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA - * */ #ifndef _NET_BATMAN_ADV_UNICAST_H_ @@@ -25,35 -27,14 +25,15 @@@ #define FRAG_TIMEOUT 10000 /* purge frag list entries after time in ms */ #define FRAG_BUFFER_SIZE 6 /* number of list elements in buffer */ -int frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv, - struct sk_buff **new_skb); -void frag_list_free(struct list_head *head); -int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv); -int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv, - struct hard_iface *hard_iface, const uint8_t dstaddr[]); +int batadv_frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv, + struct sk_buff **new_skb); +void batadv_frag_list_free(struct list_head *head); ++int batadv_unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv); +int batadv_frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv, + struct hard_iface *hard_iface, + const uint8_t dstaddr[]); - bool batadv_prepare_unicast_4addr_packet(struct bat_priv *bat_priv, - struct sk_buff *skb, - struct orig_node *orig_node, - int packet_subtype); - int batadv_unicast_generic_send_skb(struct sk_buff *skb, - struct bat_priv *bat_priv, - int packet_type, int packet_subtype); - - static inline int batadv_unicast_send_skb(struct sk_buff *skb, - struct bat_priv *bat_priv) - { - return batadv_unicast_generic_send_skb(skb, bat_priv, BAT_UNICAST, 0); - } - - static inline int batadv_unicast_4addr_send_skb(struct sk_buff *skb, - struct bat_priv *bat_priv, - int packet_subtype) - { - return batadv_unicast_generic_send_skb(skb, bat_priv, BAT_UNICAST_4ADDR, - packet_subtype); - } -static inline int frag_can_reassemble(const struct sk_buff *skb, int mtu) +static inline int batadv_frag_can_reassemble(const struct sk_buff *skb, int mtu) { const struct unicast_frag_packet *unicast_packet; int uneven_correction = 0; -- batman-adv

10 years, 8 months

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batman-adv; branch, next, updated. v2012.1.0-96-gd5a6caf

by postmaster＠open-mesh.org

The following commit has been merged in the next branch: commit d5a6cafe8fb4b1d8bc910fa2fad58bb02fc65feb Author: Sven Eckelmann <sven(a)narfation.org> Date: Thu May 17 17:18:33 2012 +0200 batman-adv: Revert Distributed ARP Table David S. Miller did not like the idea of batman-adv modifying and reading the ARP table and refused to pull this feature. It has to be rewritten after an acceptable solution was found. This reverts following commits: * batman-adv: add UNICAST_4ADDR packet type * batman-adv: add a new log level for DAT debugging * batman-adv: Distributed ARP Table - create DHT helper functions * batman-adv: Distributed ARP Table - add ARP parsing functions * batman-adv: Distributed ARP Table - add snooping functions for ARP messages * batman-adv: Distributed ARP Table - increase default soft_iface ARP table timeout * batman-adv: Distributed ARP Table - add compile option Signed-off-by: Sven Eckelmann <sven(a)narfation.org> diff --git a/Makefile b/Makefile index ac84fba..08f8c39 100644 --- a/Makefile +++ b/Makefile @@ -23,8 +23,6 @@ export CONFIG_BATMAN_ADV_DEBUG=n # B.A.T.M.A.N. bridge loop avoidance: export CONFIG_BATMAN_ADV_BLA=y -# B.A.T.M.A.N. distributed ARP table: -export CONFIG_BATMAN_ADV_DAT=y PWD:=$(shell pwd) KERNELPATH ?= /lib/modules/$(shell uname -r)/build diff --git a/Makefile.kbuild b/Makefile.kbuild index ad002cd..6d5c194 100644 --- a/Makefile.kbuild +++ b/Makefile.kbuild @@ -24,7 +24,6 @@ batman-adv-y += bat_iv_ogm.o batman-adv-y += bat_sysfs.o batman-adv-y += bitarray.o batman-adv-$(CONFIG_BATMAN_ADV_BLA) += bridge_loop_avoidance.o -batman-adv-$(CONFIG_BATMAN_ADV_DAT) += distributed-arp-table.o batman-adv-y += gateway_client.o batman-adv-y += gateway_common.o batman-adv-y += hard-interface.o diff --git a/README b/README index 82c075f..75a5923 100644 --- a/README +++ b/README @@ -202,8 +202,7 @@ abled during run time. Following log_levels are defined: 2 - Enable messages related to route added / changed / deleted 4 - Enable messages related to translation table operations 8 - Enable messages related to bridge loop avoidance -16 - Enable messaged related to DAT, ARP snooping and parsing -31 - Enable all messages +15 - enable all messages The debug output can be changed at runtime using the file /sys/class/net/bat0/mesh/log_level. e.g. diff --git a/README.external b/README.external index 874ee7f..da5afd4 100644 --- a/README.external +++ b/README.external @@ -37,7 +37,6 @@ module). Available options and their possible values are * CONFIG_BATMAN_ADV_DEBUG=[y|n*] (B.A.T.M.A.N. debugging) * CONFIG_BATMAN_ADV_BLA=[y*|n] (B.A.T.M.A.N. bridge loop avoidance) - * CONFIG_BATMAN_ADV_DAT=[y*|n] (B.A.T.M.A.N. Distributed ARP Table) e.g., debugging can be enabled by diff --git a/bat_sysfs.c b/bat_sysfs.c index acb2640..5bc7b66 100644 --- a/bat_sysfs.c +++ b/bat_sysfs.c @@ -445,7 +445,7 @@ BAT_ATTR_SIF_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, TQ_MAX_VALUE, static BAT_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, show_gw_bwidth, store_gw_bwidth); #ifdef CONFIG_BATMAN_ADV_DEBUG -BAT_ATTR_SIF_UINT(log_level, S_IRUGO | S_IWUSR, 0, 31, NULL); +BAT_ATTR_SIF_UINT(log_level, S_IRUGO | S_IWUSR, 0, 15, NULL); #endif static struct bat_attribute *mesh_attrs[] = { diff --git a/distributed-arp-table.c b/distributed-arp-table.c deleted file mode 100644 index 6935be9..0000000 --- a/distributed-arp-table.c +++ /dev/null @@ -1,605 +0,0 @@ -/* - * Copyright (C) 2011-2012 B.A.T.M.A.N. contributors: - * - * Antonio Quartulli - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA - * - */ - -#include <linux/if_ether.h> -#include <linux/if_arp.h> -/* needed to use arp_tbl */ -#include <net/arp.h> -#include <linux/inetdevice.h> - -#include "main.h" -#include "distributed-arp-table.h" -#include "hard-interface.h" -#include "originator.h" -#include "send.h" -#include "types.h" -#include "translation-table.h" -#include "unicast.h" - -#ifdef CONFIG_BATMAN_ADV_DEBUG - -static void bat_dbg_arp(struct bat_priv *bat_priv, struct sk_buff *skb, - uint16_t type, int hdr_size, char *msg) -{ - struct unicast_4addr_packet *unicast_4addr_packet; - - if (msg) - bat_dbg(DBG_DAT, bat_priv, "%s\n", msg); - - bat_dbg(DBG_DAT, bat_priv, "ARP MSG = [src: %pM-%pI4 dst: %pM-%pI4]\n", - ARP_HW_SRC(skb, hdr_size), &ARP_IP_SRC(skb, hdr_size), - ARP_HW_DST(skb, hdr_size), &ARP_IP_DST(skb, hdr_size)); - - if (hdr_size == 0) - return; - - /* if the AP packet is encapsulated in a batman packet, let's print some - * debug messages - */ - unicast_4addr_packet = (struct unicast_4addr_packet *)skb->data; - - switch (unicast_4addr_packet->u.header.packet_type) { - case BAT_UNICAST: - bat_dbg(DBG_DAT, bat_priv, - "* encapsulated within a UNICAST packet\n"); - break; - case BAT_UNICAST_4ADDR: - bat_dbg(DBG_DAT, bat_priv, - "* encapsulated within a UNICAST_4ADDR packet (src: %pM)\n", - unicast_4addr_packet->src); - switch (unicast_4addr_packet->subtype) { - case BAT_P_DAT_DHT_PUT: - bat_dbg(DBG_DAT, bat_priv, "* type: DAT_DHT_PUT\n"); - break; - case BAT_P_DAT_DHT_GET: - bat_dbg(DBG_DAT, bat_priv, "* type: DAT_DHT_GET\n"); - break; - case BAT_P_DAT_CACHE_REPLY: - bat_dbg(DBG_DAT, bat_priv, "* type: DAT_CACHE_REPLY\n"); - break; - case BAT_P_DATA: - bat_dbg(DBG_DAT, bat_priv, "* type: DATA\n"); - break; - default: - bat_dbg(DBG_DAT, bat_priv, "* type: Unknown!\n"); - } - break; - case BAT_BCAST: - bat_dbg(DBG_DAT, bat_priv, - "* encapsulated within a BCAST packet (src: %pM)\n", - ((struct bcast_packet *)unicast_4addr_packet)->orig); - break; - default: - bat_dbg(DBG_DAT, bat_priv, - "* encapsulated within an unknown packet type (0x%x)\n", - unicast_4addr_packet->u.header.packet_type); - } -} - -#else - -static void bat_dbg_arp(struct bat_priv *bat_priv, struct sk_buff *skb, - uint16_t type, int hdr_size, char *msg) -{ -} - -#endif /* CONFIG_BATMAN_ADV_DEBUG */ - -static bool is_orig_node_eligible(struct dht_candidate *res, int select, - dat_addr_t tmp_max, dat_addr_t max, - dat_addr_t last_max, - struct orig_node *candidate, - struct orig_node *max_orig_node) -{ - bool ret = false; - int j; - - /* Check if we have already selected this neighbour... */ - for (j = 0; j < select; j++) - if (res[j].orig_node == candidate) - break; - /* ..and possibly skip it */ - if (j < select) - goto out; - /* sanity check: has it already been selected? This should not happen */ - if (tmp_max > last_max) - goto out; - /* check if during this iteration we have already found an originator - * with a closer dht address - */ - if (tmp_max < max) - goto out; - /* this is an hash collision with the temporary selected node. Choose - * the one with the lowest address - */ - if ((tmp_max == max) && - (compare_eth(candidate->orig, max_orig_node->orig) > 0)) - goto out; - - ret = true; -out: - return ret; -} - -/* selects the next candidate by populating cands[select] and modifies last_max - * accordingly - */ -static void choose_next_candidate(struct bat_priv *bat_priv, - struct dht_candidate *cands, int select, - dat_addr_t ip_key, dat_addr_t *last_max) -{ - dat_addr_t max = 0, tmp_max = 0; - struct orig_node *orig_node, *max_orig_node = NULL; - struct hashtable_t *hash = bat_priv->orig_hash; - struct hlist_node *node; - struct hlist_head *head; - int i; - - /* if no node is eligible as candidate, we will leave the candidate as - * NOT_FOUND - */ - cands[select].type = DHT_CANDIDATE_NOT_FOUND; - - /* iterate over the originator list and find the node with closest - * dht_address which has not been selected yet - */ - for (i = 0; i < hash->size; i++) { - head = &hash->table[i]; - - rcu_read_lock(); - hlist_for_each_entry_rcu(orig_node, node, head, hash_entry) { - /* the dht space is a ring and addresses are unsigned */ - tmp_max = DAT_ADDR_MAX - orig_node->dht_addr + ip_key; - - if (!is_orig_node_eligible(cands, select, tmp_max, max, - *last_max, orig_node, - max_orig_node)) - continue; - - if (!atomic_inc_not_zero(&orig_node->refcount)) - continue; - - max = tmp_max; - if (max_orig_node) - orig_node_free_ref(max_orig_node); - max_orig_node = orig_node; - } - rcu_read_unlock(); - } - if (max_orig_node) { - cands[select].type = DHT_CANDIDATE_ORIG; - cands[select].orig_node = max_orig_node; - bat_dbg(DBG_DAT, bat_priv, - "dht_select_candidates() %d: selected %pM addr=%u dist=%u\n", - select, max_orig_node->orig, max_orig_node->dht_addr, - max); - } - *last_max = max; -} - -/* Given a key, selects the candidates which the DHT message has to be sent to. - * An originator O is selected if and only if its DHT_ID value is one of three - * closest values (from the LEFT, with wrap around if needed) then the hash - * value of the key. ip_dst is the key. - * - * return an array of size DHT_CANDIDATES_NUM - */ -static struct dht_candidate *dht_select_candidates(struct bat_priv *bat_priv, - uint32_t ip_dst) -{ - int select; - dat_addr_t last_max = DAT_ADDR_MAX, ip_key; - struct dht_candidate *res; - - if (!bat_priv->orig_hash) - return NULL; - - res = kmalloc(DHT_CANDIDATES_NUM * sizeof(*res), GFP_ATOMIC); - if (!res) - return NULL; - - ip_key = (dat_addr_t)hash_ipv4(&ip_dst, DAT_ADDR_MAX); - - bat_dbg(DBG_DAT, bat_priv, - "dht_select_candidates(): IP=%pI4 hash(IP)=%u\n", &ip_dst, - ip_key); - - for (select = 0; select < DHT_CANDIDATES_NUM; select++) - choose_next_candidate(bat_priv, res, select, ip_key, &last_max); - - return res; -} - -/* Sends the skb payload passed as argument to the candidates selected for - * the data represented by 'ip'. The skb is copied by means of pskb_copy() - * and is sent as unicast packet to each of the selected candidate. - * - * If the packet is successfully sent to at least one candidate, then this - * function returns true - */ -static bool dht_send_data(struct bat_priv *bat_priv, struct sk_buff *skb, - uint32_t ip, int packet_subtype) -{ - int i; - bool ret = false; - struct neigh_node *neigh_node = NULL; - struct sk_buff *tmp_skb; - struct dht_candidate *cand = dht_select_candidates(bat_priv, ip); - - if (!cand) - goto out; - - bat_dbg(DBG_DAT, bat_priv, "DHT_SEND for %pI4\n", &ip); - - for (i = 0; i < DHT_CANDIDATES_NUM; i++) { - if (cand[i].type == DHT_CANDIDATE_NOT_FOUND) - continue; - - neigh_node = orig_node_get_router(cand[i].orig_node); - if (!neigh_node) - goto free_orig; - - tmp_skb = pskb_copy(skb, GFP_ATOMIC); - if (!prepare_unicast_4addr_packet(bat_priv, tmp_skb, - cand[i].orig_node, - packet_subtype)) { - kfree_skb(tmp_skb); - goto free_neigh; - } - if (send_skb_packet(tmp_skb, neigh_node->if_incoming, - neigh_node->addr) == NET_XMIT_SUCCESS) - /* packet sent to a candidate: we can return true */ - ret = true; -free_neigh: - neigh_node_free_ref(neigh_node); -free_orig: - orig_node_free_ref(cand[i].orig_node); - } - -out: - kfree(cand); - return ret; -} - -/* Update the neighbour entry corresponding to the IP passed as parameter with - * the hw address hw. If the neighbour entry doesn't exists, then it will be - * created - */ -static void arp_neigh_update(struct bat_priv *bat_priv, uint32_t ip, - uint8_t *hw) -{ - struct neighbour *n = NULL; - struct hard_iface *primary_if = primary_if_get_selected(bat_priv); - if (!primary_if) - goto out; - - n = __neigh_lookup(&arp_tbl, &ip, primary_if->soft_iface, 1); - if (!n) - goto out; - - bat_dbg(DBG_DAT, bat_priv, "Updating neighbour: %pI4 - %pM\n", &ip, hw); - - neigh_update(n, hw, NUD_REACHABLE, NEIGH_UPDATE_F_OVERRIDE); -out: - if (n && !IS_ERR(n)) - neigh_release(n); - if (primary_if) - hardif_free_ref(primary_if); -} - -/* Returns arphdr->ar_op if the skb contains a valid ARP packet, otherwise - * returns 0 - */ -static uint16_t arp_get_type(struct bat_priv *bat_priv, struct sk_buff *skb, - int hdr_size) -{ - struct arphdr *arphdr; - struct ethhdr *ethhdr; - uint32_t ip_src, ip_dst; - uint16_t type = 0; - - /* pull the ethernet header */ - if (unlikely(!pskb_may_pull(skb, hdr_size + ETH_HLEN))) - goto out; - - ethhdr = (struct ethhdr *)(skb->data + hdr_size); - - if (ethhdr->h_proto != htons(ETH_P_ARP)) - goto out; - - /* pull the ARP payload */ - if (unlikely(!pskb_may_pull(skb, hdr_size + ETH_HLEN + - arp_hdr_len(skb->dev)))) - goto out; - - arphdr = (struct arphdr *)(skb->data + hdr_size + ETH_HLEN); - - /* Check whether the ARP packet carries a valid - * IP information */ - if (arphdr->ar_hrd != htons(ARPHRD_ETHER)) - goto out; - - if (arphdr->ar_pro != htons(ETH_P_IP)) - goto out; - - if (arphdr->ar_hln != ETH_ALEN) - goto out; - - if (arphdr->ar_pln != 4) - goto out; - - /* Check for bad reply/request. If the ARP message is not sane, DAT - * will simply ignore it */ - ip_src = ARP_IP_SRC(skb, hdr_size); - ip_dst = ARP_IP_DST(skb, hdr_size); - if (ipv4_is_loopback(ip_src) || ipv4_is_multicast(ip_src) || - ipv4_is_loopback(ip_dst) || ipv4_is_multicast(ip_dst)) - goto out; - - type = ntohs(arphdr->ar_op); -out: - return type; -} - -/* return true if the message has been sent to the dht candidates, false - * otherwise. In case of true the message has to be enqueued to permit the - * fallback - */ -bool dat_snoop_outgoing_arp_request(struct bat_priv *bat_priv, - struct sk_buff *skb) -{ - uint16_t type = 0; - uint32_t ip_dst, ip_src; - uint8_t *hw_src; - bool ret = false; - struct neighbour *n = NULL; - struct hard_iface *primary_if = NULL; - struct sk_buff *skb_new; - - type = arp_get_type(bat_priv, skb, 0); - /* If we get an ARP_REQUEST we have to send the unicast message to the - * selected DHT candidates - */ - if (type != ARPOP_REQUEST) - goto out; - - bat_dbg_arp(bat_priv, skb, type, 0, "Parsing outgoing ARP REQUEST"); - - ip_src = ARP_IP_SRC(skb, 0); - hw_src = ARP_HW_SRC(skb, 0); - ip_dst = ARP_IP_DST(skb, 0); - - primary_if = primary_if_get_selected(bat_priv); - if (!primary_if) - goto out; - - arp_neigh_update(bat_priv, ip_src, hw_src); - - n = neigh_lookup(&arp_tbl, &ip_dst, primary_if->soft_iface); - /* check if it is a valid neigh entry */ - if (n && (n->nud_state & NUD_CONNECTED)) { - skb_new = arp_create(ARPOP_REPLY, ETH_P_ARP, ip_src, - primary_if->soft_iface, ip_dst, hw_src, - n->ha, hw_src); - if (!skb_new) - goto out; - - skb_reset_mac_header(skb_new); - skb_new->protocol = eth_type_trans(skb_new, - primary_if->soft_iface); - bat_priv->stats.rx_packets++; - bat_priv->stats.rx_bytes += skb->len + ETH_HLEN; - primary_if->soft_iface->last_rx = jiffies; - - netif_rx(skb_new); - bat_dbg(DBG_DAT, bat_priv, "ARP request replied locally\n"); - } else - /* Send the request on the DHT */ - ret = dht_send_data(bat_priv, skb, ip_dst, BAT_P_DAT_DHT_GET); -out: - if (n) - neigh_release(n); - if (primary_if) - hardif_free_ref(primary_if); - return ret; -} - -/* This function is meant to be invoked for an ARP request which is coming into - * the bat0 interfaces from the mesh network. It will check for the needed data - * into the local table. If found, an ARP reply is sent immediately, otherwise - * the caller has to deliver the ARP request to the upper layer - */ -bool dat_snoop_incoming_arp_request(struct bat_priv *bat_priv, - struct sk_buff *skb, int hdr_size) -{ - uint16_t type; - uint32_t ip_src, ip_dst; - uint8_t *hw_src; - struct hard_iface *primary_if = NULL; - struct sk_buff *skb_new; - struct neighbour *n = NULL; - bool ret = false; - - type = arp_get_type(bat_priv, skb, hdr_size); - if (type != ARPOP_REQUEST) - goto out; - - hw_src = ARP_HW_SRC(skb, hdr_size); - ip_src = ARP_IP_SRC(skb, hdr_size); - ip_dst = ARP_IP_DST(skb, hdr_size); - - bat_dbg_arp(bat_priv, skb, type, hdr_size, - "Parsing incoming ARP REQUEST"); - - primary_if = primary_if_get_selected(bat_priv); - if (!primary_if) - goto out; - - arp_neigh_update(bat_priv, ip_src, hw_src); - - n = neigh_lookup(&arp_tbl, &ip_dst, primary_if->soft_iface); - /* check if it is a valid neigh entry */ - if (!n || !(n->nud_state & NUD_CONNECTED)) - goto out; - - skb_new = arp_create(ARPOP_REPLY, ETH_P_ARP, ip_src, - primary_if->soft_iface, ip_dst, hw_src, n->ha, - hw_src); - - if (!skb_new) - goto out; - - unicast_4addr_send_skb(skb_new, bat_priv, BAT_P_DAT_CACHE_REPLY); - - ret = true; -out: - if (n) - neigh_release(n); - if (primary_if) - hardif_free_ref(primary_if); - if (ret) - kfree_skb(skb); - return ret; -} - -/* This function is meant to be invoked on an ARP reply packet going into the - * soft interface. The related neighbour entry has to be updated and the DHT has - * to be populated as well - */ -bool dat_snoop_outgoing_arp_reply(struct bat_priv *bat_priv, - struct sk_buff *skb) -{ - uint16_t type; - uint32_t ip_src, ip_dst; - uint8_t *hw_src, *hw_dst; - bool ret = false; - - type = arp_get_type(bat_priv, skb, 0); - if (type != ARPOP_REPLY) - goto out; - - bat_dbg_arp(bat_priv, skb, type, 0, "Parsing outgoing ARP REPLY"); - - hw_src = ARP_HW_SRC(skb, 0); - ip_src = ARP_IP_SRC(skb, 0); - hw_dst = ARP_HW_DST(skb, 0); - ip_dst = ARP_IP_DST(skb, 0); - - arp_neigh_update(bat_priv, ip_src, hw_src); - arp_neigh_update(bat_priv, ip_dst, hw_dst); - - /* Send the ARP reply to the candidates for both the IP addresses we - * fetched from the ARP reply - */ - dht_send_data(bat_priv, skb, ip_src, BAT_P_DAT_DHT_PUT); - dht_send_data(bat_priv, skb, ip_dst, BAT_P_DAT_DHT_PUT); - ret = true; -out: - return ret; -} - -/* This function has to be invoked on an ARP reply coming into the soft - * interface from the mesh network. The local table has to be updated - */ -bool dat_snoop_incoming_arp_reply(struct bat_priv *bat_priv, - struct sk_buff *skb, int hdr_size) -{ - uint16_t type; - uint32_t ip_src, ip_dst; - uint8_t *hw_src, *hw_dst; - bool ret = false; - - type = arp_get_type(bat_priv, skb, hdr_size); - if (type != ARPOP_REPLY) - goto out; - - bat_dbg_arp(bat_priv, skb, type, hdr_size, - "Parsing incoming ARP REPLY"); - - hw_src = ARP_HW_SRC(skb, hdr_size); - ip_src = ARP_IP_SRC(skb, hdr_size); - hw_dst = ARP_HW_DST(skb, hdr_size); - ip_dst = ARP_IP_DST(skb, hdr_size); - - /* Update our internal cache with both the IP addresses we fetched from - * the ARP reply - */ - arp_neigh_update(bat_priv, ip_src, hw_src); - arp_neigh_update(bat_priv, ip_dst, hw_dst); - - /* if this REPLY is directed to a client of mine, let's deliver the - * packet to the interface - */ - ret = !is_my_client(bat_priv, hw_dst); -out: - /* if ret == false packet has to be delivered to the interface */ - return ret; -} - -bool dat_drop_broadcast_packet(struct bat_priv *bat_priv, - struct forw_packet *forw_packet) -{ - struct neighbour *n; - - /* If this packet is an ARP_REQUEST and we already have the information - * that it is going to ask, we can drop the packet - */ - if (!forw_packet->num_packets && - (ARPOP_REQUEST == arp_get_type(bat_priv, forw_packet->skb, - sizeof(struct bcast_packet)))) { - n = neigh_lookup(&arp_tbl, - &ARP_IP_DST(forw_packet->skb, - sizeof(struct bcast_packet)), - forw_packet->if_incoming->soft_iface); - /* check if we already know this neigh */ - if (n && (n->nud_state & NUD_CONNECTED)) { - bat_dbg(DBG_DAT, bat_priv, - "ARP Request for %pI4: fallback prevented\n", - &ARP_IP_DST(forw_packet->skb, - sizeof(struct bcast_packet))); - return true; - } - - bat_dbg(DBG_DAT, bat_priv, "ARP Request for %pI4: fallback\n", - &ARP_IP_DST(forw_packet->skb, - sizeof(struct bcast_packet))); - } - return false; -} - -void arp_change_timeout(struct net_device *soft_iface, const char *name) -{ - struct in_device *in_dev = in_dev_get(soft_iface); - if (!in_dev) { - pr_err("Unable to set ARP parameters for the batman interface '%s'\n", - name); - return; - } - - /* Introduce a delay in the ARP state-machine transactions. Entries - * will be kept in the ARP table for the default time multiplied by 4 - */ - in_dev->arp_parms->base_reachable_time *= ARP_TIMEOUT_FACTOR; - in_dev->arp_parms->gc_staletime *= ARP_TIMEOUT_FACTOR; - in_dev->arp_parms->reachable_time *= ARP_TIMEOUT_FACTOR; - - in_dev_put(in_dev); -} diff --git a/distributed-arp-table.h b/distributed-arp-table.h deleted file mode 100644 index 6c0acde..0000000 --- a/distributed-arp-table.h +++ /dev/null @@ -1,140 +0,0 @@ -/* - * Copyright (C) 2011-2012 B.A.T.M.A.N. contributors: - * - * Antonio Quartulli - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA - * - */ - -#ifndef _NET_BATMAN_ADV_ARP_H_ -#define _NET_BATMAN_ADV_ARP_H_ - -#ifdef CONFIG_BATMAN_ADV_DAT - -#include "types.h" -#include "originator.h" - -#include <linux/if_arp.h> - -#define DAT_ADDR_MAX ((dat_addr_t)~(dat_addr_t)0) - -#define ARP_HW_SRC(skb, hdr_size) ((uint8_t *)(skb->data + hdr_size) + \ - ETH_HLEN + sizeof(struct arphdr)) -#define ARP_IP_SRC(skb, hdr_size) (*(uint32_t *)(ARP_HW_SRC(skb, hdr_size) + \ - ETH_ALEN)) -#define ARP_HW_DST(skb, hdr_size) (ARP_HW_SRC(skb, hdr_size) + ETH_ALEN + 4) -#define ARP_IP_DST(skb, hdr_size) (*(uint32_t *)(ARP_HW_SRC(skb, hdr_size) + \ - ETH_ALEN * 2 + 4)) - -bool dat_snoop_outgoing_arp_request(struct bat_priv *bat_priv, - struct sk_buff *skb); -bool dat_snoop_incoming_arp_request(struct bat_priv *bat_priv, - struct sk_buff *skb, int hdr_size); -bool dat_snoop_outgoing_arp_reply(struct bat_priv *bat_priv, - struct sk_buff *skb); -bool dat_snoop_incoming_arp_reply(struct bat_priv *bat_priv, - struct sk_buff *skb, int hdr_size); -bool dat_drop_broadcast_packet(struct bat_priv *bat_priv, - struct forw_packet *forw_packet); -void arp_change_timeout(struct net_device *soft_iface, const char *name); - -/* hash function to choose an entry in a hash table of given size. - * hash algorithm from http://en.wikipedia.org/wiki/Hash_table - */ -static inline uint32_t hash_ipv4(const void *data, uint32_t size) -{ - const unsigned char *key = data; - uint32_t hash = 0; - size_t i; - - for (i = 0; i < 4; i++) { - hash += key[i]; - hash += (hash << 10); - hash ^= (hash >> 6); - } - - hash += (hash << 3); - hash ^= (hash >> 11); - hash += (hash << 15); - - return hash % size; -} - -static inline void dat_init_orig_node_dht_addr(struct orig_node *orig_node) -{ - orig_node->dht_addr = (dat_addr_t)choose_orig(orig_node->orig, - DAT_ADDR_MAX); -} - -static inline void dat_init_own_dht_addr(struct bat_priv *bat_priv, - struct hard_iface *primary_if) -{ - bat_priv->dht_addr = (dat_addr_t) - choose_orig(primary_if->net_dev->dev_addr, - DAT_ADDR_MAX); -} - -#else - -static inline bool dat_snoop_outgoing_arp_request(struct bat_priv *bat_priv, - struct sk_buff *skb) -{ - return false; -} - -static inline bool dat_snoop_incoming_arp_request(struct bat_priv *bat_priv, - struct sk_buff *skb, - int hdr_size) -{ - return false; -} - -static inline bool dat_snoop_outgoing_arp_reply(struct bat_priv *bat_priv, - struct sk_buff *skb) -{ - return false; -} - -static inline bool dat_snoop_incoming_arp_reply(struct bat_priv *bat_priv, - struct sk_buff *skb, - int hdr_size) -{ - return false; -} - -static inline bool dat_drop_broadcast_packet(struct bat_priv *bat_priv, - struct forw_packet *forw_packet) -{ - return false; -} - -static inline void dat_init_orig_node_dht_addr(struct orig_node *orig_node) -{ -} - -static inline void dat_init_own_dht_addr(struct bat_priv *bat_priv, - struct hard_iface *primary_if) -{ -} - -static inline void arp_change_timeout(struct net_device *soft_iface, - const char *name) -{ -} - -#endif /* CONFIG_BATMAN_ADV_DAT */ - -#endif /* _NET_BATMAN_ADV_ARP_H_ */ diff --git a/gen-compat-autoconf.sh b/gen-compat-autoconf.sh index 7ea42aa..7cf621b 100755 --- a/gen-compat-autoconf.sh +++ b/gen-compat-autoconf.sh @@ -38,7 +38,6 @@ gen_config() { # write config variables gen_config 'CONFIG_BATMAN_ADV_DEBUG' ${CONFIG_BATMAN_ADV_DEBUG:="n"} >> "${TMP}" gen_config 'CONFIG_BATMAN_ADV_BLA' ${CONFIG_BATMAN_ADV_BLA:="y"} >> "${TMP}" -gen_config 'CONFIG_BATMAN_ADV_DAT' ${CONFIG_BATMAN_ADV_DAT:="y"} >> "${TMP}" # only regenerate compat-autoconf.h when config was changed diff "${TMP}" "${TARGET}" > /dev/null 2>&1 || cp "${TMP}" "${TARGET}" diff --git a/hard-interface.c b/hard-interface.c index 843caa7..ce78c6d 100644 --- a/hard-interface.c +++ b/hard-interface.c @@ -20,7 +20,6 @@ */ #include "main.h" -#include "distributed-arp-table.h" #include "hard-interface.h" #include "soft-interface.h" #include "send.h" @@ -113,8 +112,6 @@ static void primary_if_update_addr(struct bat_priv *bat_priv, if (!primary_if) goto out; - dat_init_own_dht_addr(bat_priv, primary_if); - vis_packet = (struct vis_packet *) bat_priv->my_vis_info->skb_packet->data; memcpy(vis_packet->vis_orig, primary_if->net_dev->dev_addr, ETH_ALEN); diff --git a/main.c b/main.c index 9137aa0..083a299 100644 --- a/main.c +++ b/main.c @@ -268,8 +268,6 @@ static void recv_handler_init(void) /* batman icmp packet */ recv_packet_handler[BAT_ICMP] = recv_icmp_packet; - /* unicast with 4 addresses packet */ - recv_packet_handler[BAT_UNICAST_4ADDR] = recv_unicast_packet; /* unicast packet */ recv_packet_handler[BAT_UNICAST] = recv_unicast_packet; /* fragmented unicast packet */ diff --git a/main.h b/main.h index 426a0d5..19e5881 100644 --- a/main.h +++ b/main.h @@ -67,15 +67,6 @@ #define NUM_WORDS BITS_TO_LONGS(TQ_LOCAL_WINDOW_SIZE) -/* msecs after which an ARP_REQUEST is sent in broadcast as fallback */ -#define ARP_REQ_DELAY 250 -/* numbers of originator to contact for any PUT/GET DHT operation */ -#define DHT_CANDIDATES_NUM 3 -/* Factor which default ARP timeout values of the soft_iface table are - * multiplied by - */ -#define ARP_TIMEOUT_FACTOR 4 - #define LOG_BUF_LEN 8192 /* has to be a power of 2 */ #define VIS_INTERVAL 5000 /* 5 seconds */ @@ -120,9 +111,6 @@ enum uev_type { #define GW_THRESHOLD 50 -#define DHT_CANDIDATE_NOT_FOUND 0 -#define DHT_CANDIDATE_ORIG 1 - /* Debug Messages */ #ifdef pr_fmt #undef pr_fmt @@ -136,8 +124,7 @@ enum dbg_level { DBG_ROUTES = 1 << 1, /* route added / changed / deleted */ DBG_TT = 1 << 2, /* translation table operations */ DBG_BLA = 1 << 3, /* bridge loop avoidance */ - DBG_DAT = 1 << 4, /* snooped arp messages / dat operations */ - DBG_ALL = 31 + DBG_ALL = 15 }; /* Kernel headers */ diff --git a/originator.c b/originator.c index c6a00b3..4114794 100644 --- a/originator.c +++ b/originator.c @@ -20,7 +20,6 @@ */ #include "main.h" -#include "distributed-arp-table.h" #include "originator.h" #include "hash.h" #include "translation-table.h" @@ -221,7 +220,6 @@ struct orig_node *get_orig_node(struct bat_priv *bat_priv, const uint8_t *addr) orig_node->tt_poss_change = false; orig_node->bat_priv = bat_priv; memcpy(orig_node->orig, addr, ETH_ALEN); - dat_init_orig_node_dht_addr(orig_node); orig_node->router = NULL; orig_node->tt_crc = 0; atomic_set(&orig_node->last_ttvn, 0); diff --git a/packet.h b/packet.h index 307dbb3..0ee1af7 100644 --- a/packet.h +++ b/packet.h @@ -25,22 +25,14 @@ #define ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */ enum bat_packettype { - BAT_IV_OGM = 0x01, - BAT_ICMP = 0x02, - BAT_UNICAST = 0x03, - BAT_BCAST = 0x04, - BAT_VIS = 0x05, - BAT_UNICAST_FRAG = 0x06, - BAT_TT_QUERY = 0x07, - BAT_ROAM_ADV = 0x08, - BAT_UNICAST_4ADDR = 0x09 -}; - -enum bat_subtype { - BAT_P_DATA = 0x01, - BAT_P_DAT_DHT_GET = 0x02, - BAT_P_DAT_DHT_PUT = 0x03, - BAT_P_DAT_CACHE_REPLY = 0x04 + BAT_IV_OGM = 0x01, + BAT_ICMP = 0x02, + BAT_UNICAST = 0x03, + BAT_BCAST = 0x04, + BAT_VIS = 0x05, + BAT_UNICAST_FRAG = 0x06, + BAT_TT_QUERY = 0x07, + BAT_ROAM_ADV = 0x08 }; /* this file is included by batctl which needs these defines */ @@ -168,12 +160,6 @@ struct unicast_packet { uint8_t dest[ETH_ALEN]; } __packed; -struct unicast_4addr_packet { - struct unicast_packet u; - uint8_t src[ETH_ALEN]; - uint8_t subtype; -} __packed; - struct unicast_frag_packet { struct batman_header header; uint8_t ttvn; /* destination translation table version number */ diff --git a/routing.c b/routing.c index 4f2059f..840e2c6 100644 --- a/routing.c +++ b/routing.c @@ -962,18 +962,14 @@ int recv_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if) struct unicast_packet *unicast_packet; int hdr_size = sizeof(*unicast_packet); - unicast_packet = (struct unicast_packet *)skb->data; - - /* the caller function should have already pulled 2 bytes */ - if (unicast_packet->header.packet_type == BAT_UNICAST_4ADDR) - hdr_size = sizeof(struct unicast_4addr_packet); - if (check_unicast_packet(skb, hdr_size) < 0) return NET_RX_DROP; if (!check_unicast_ttvn(bat_priv, skb)) return NET_RX_DROP; + unicast_packet = (struct unicast_packet *)skb->data; + /* packet for me */ if (is_my_mac(unicast_packet->dest)) { interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size); diff --git a/send.c b/send.c index 815cc9c..f47299f 100644 --- a/send.c +++ b/send.c @@ -20,7 +20,6 @@ */ #include "main.h" -#include "distributed-arp-table.h" #include "send.h" #include "routing.h" #include "translation-table.h" @@ -275,9 +274,6 @@ static void send_outstanding_bcast_packet(struct work_struct *work) if (atomic_read(&bat_priv->mesh_state) == MESH_DEACTIVATING) goto out; - if (dat_drop_broadcast_packet(bat_priv, forw_packet)) - goto out; - /* rebroadcast packet */ rcu_read_lock(); list_for_each_entry_rcu(hard_iface, &hardif_list, list) { diff --git a/soft-interface.c b/soft-interface.c index b56dafd..6e2530b 100644 --- a/soft-interface.c +++ b/soft-interface.c @@ -22,7 +22,6 @@ #include "main.h" #include "soft-interface.h" #include "hard-interface.h" -#include "distributed-arp-table.h" #include "routing.h" #include "send.h" #include "bat_debugfs.h" @@ -137,7 +136,6 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface) int data_len = skb->len, ret; short vid __maybe_unused = -1; bool do_bcast = false; - unsigned long brd_delay = 1; if (atomic_read(&bat_priv->mesh_state) != MESH_ACTIVE) goto dropped; @@ -199,9 +197,6 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface) if (!primary_if) goto dropped; - if (dat_snoop_outgoing_arp_request(bat_priv, skb)) - brd_delay = msecs_to_jiffies(ARP_REQ_DELAY); - if (my_skb_head_push(skb, sizeof(*bcast_packet)) < 0) goto dropped; @@ -221,7 +216,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface) bcast_packet->seqno = htonl(atomic_inc_return(&bat_priv->bcast_seqno)); - add_bcast_packet_to_list(bat_priv, skb, brd_delay); + add_bcast_packet_to_list(bat_priv, skb, 1); /* a copy is stored in the bcast list, therefore removing * the original skb. */ @@ -235,8 +230,6 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface) goto dropped; } - dat_snoop_outgoing_arp_reply(bat_priv, skb); - ret = unicast_send_skb(skb, bat_priv); if (ret != 0) goto dropped_freed; @@ -269,12 +262,6 @@ void interface_rx(struct net_device *soft_iface, if (!pskb_may_pull(skb, hdr_size)) goto dropped; - if (dat_snoop_incoming_arp_request(bat_priv, skb, hdr_size)) - goto out; - - if (dat_snoop_incoming_arp_reply(bat_priv, skb, hdr_size)) - goto out; - skb_pull_rcsum(skb, hdr_size); skb_reset_mac_header(skb); @@ -381,8 +368,6 @@ struct net_device *softif_create(const char *name) goto free_soft_iface; } - arp_change_timeout(soft_iface, name); - bat_priv = netdev_priv(soft_iface); atomic_set(&bat_priv->aggregated_ogms, 1); diff --git a/types.h b/types.h index 6474324..61308e8 100644 --- a/types.h +++ b/types.h @@ -27,17 +27,6 @@ #include "packet.h" #include "bitarray.h" -#ifdef CONFIG_BATMAN_ADV_DAT - -/* dat_addr_t is the type used for all DHT addresses. If it is changed, - * DAT_ADDR_MAX is changed as well. - * - * *Please be careful: dat_addr_t must be UNSIGNED* - */ -#define dat_addr_t uint16_t - -#endif /* CONFIG_BATMAN_ADV_DAT */ - #define BAT_HEADER_LEN (ETH_HLEN + \ ((sizeof(struct unicast_packet) > sizeof(struct bcast_packet) ? \ sizeof(struct unicast_packet) : \ @@ -78,9 +67,6 @@ struct hard_iface { struct orig_node { uint8_t orig[ETH_ALEN]; uint8_t primary_addr[ETH_ALEN]; -#ifdef CONFIG_BATMAN_ADV_DAT - dat_addr_t dht_addr; -#endif struct neigh_node __rcu *router; /* rcu protected pointer */ unsigned long *bcast_own; uint8_t *bcast_own_sum; @@ -235,9 +221,6 @@ struct bat_priv { struct gw_node __rcu *curr_gw; /* rcu protected pointer */ atomic_t gw_reselect; struct hard_iface __rcu *primary_if; /* rcu protected pointer */ -#ifdef CONFIG_BATMAN_ADV_DAT - dat_addr_t dht_addr; -#endif struct vis_info *my_vis_info; struct bat_algo_ops *bat_algo_ops; }; @@ -411,9 +394,4 @@ struct bat_algo_ops { void (*bat_ogm_emit)(struct forw_packet *forw_packet); }; -struct dht_candidate { - int type; - struct orig_node *orig_node; -}; - #endif /* _NET_BATMAN_ADV_TYPES_H_ */ diff --git a/unicast.c b/unicast.c index e5c7999..74175c2 100644 --- a/unicast.c +++ b/unicast.c @@ -283,78 +283,13 @@ out: return ret; } -static bool pull_and_fill_unicast(struct sk_buff *skb, int hdr_size, - struct orig_node *orig_node) -{ - struct unicast_packet *unicast_packet; - - if (my_skb_head_push(skb, hdr_size) < 0) - return false; - - unicast_packet = (struct unicast_packet *)skb->data; - unicast_packet->header.version = COMPAT_VERSION; - /* batman packet type: unicast */ - unicast_packet->header.packet_type = BAT_UNICAST; - /* set unicast ttl */ - unicast_packet->header.ttl = TTL; - /* copy the destination for faster routing */ - memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN); - /* set the destination tt version number */ - unicast_packet->ttvn = - (uint8_t)atomic_read(&orig_node->last_ttvn); - - return true; -} - -static bool prepare_unicast_packet(struct sk_buff *skb, - struct orig_node *orig_node) -{ - return pull_and_fill_unicast(skb, sizeof(struct unicast_packet), - orig_node); -} - -bool prepare_unicast_4addr_packet(struct bat_priv *bat_priv, - struct sk_buff *skb, - struct orig_node *orig_node, - int packet_subtype) -{ - struct hard_iface *primary_if; - struct unicast_4addr_packet *unicast_4addr_packet; - bool ret = false; - - primary_if = primary_if_get_selected(bat_priv); - if (!primary_if) - goto out; - - /* pull the header space and fill the unicast_packet substructure. - * We can do that because the first member of the unicast_4addr_packet - * is of type struct unicast_packet - */ - if (!pull_and_fill_unicast(skb, sizeof(*unicast_4addr_packet), - orig_node)) - goto out; - - unicast_4addr_packet = (struct unicast_4addr_packet *)skb->data; - unicast_4addr_packet->u.header.packet_type = BAT_UNICAST_4ADDR; - memcpy(unicast_4addr_packet->src, primary_if->net_dev->dev_addr, - ETH_ALEN); - unicast_4addr_packet->subtype = packet_subtype; - - ret = true; -out: - if (primary_if) - hardif_free_ref(primary_if); - return ret; -} - -int unicast_generic_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv, - int packet_type, int packet_subtype) +int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv) { struct ethhdr *ethhdr = (struct ethhdr *)skb->data; + struct unicast_packet *unicast_packet; struct orig_node *orig_node; struct neigh_node *neigh_node; int data_len = skb->len; - struct unicast_packet *unicast_packet; int ret = 1; /* get routing information */ @@ -368,6 +303,7 @@ int unicast_generic_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv, * returns NULL in case of AP isolation */ orig_node = transtable_search(bat_priv, ethhdr->h_source, ethhdr->h_dest); + find_router: /** * find_router(): @@ -375,26 +311,26 @@ find_router: * - increases neigh_nodes refcount if found. */ neigh_node = find_router(bat_priv, orig_node, NULL); + if (!neigh_node) goto out; - switch (packet_type) { - case BAT_UNICAST: - prepare_unicast_packet(skb, orig_node); - break; - case BAT_UNICAST_4ADDR: - prepare_unicast_4addr_packet(bat_priv, skb, orig_node, - packet_subtype); - break; - default: - /* this function supports UNICAST and UNICAST_4ADDR only. It - * should never be invoked with any other packet type - */ + if (my_skb_head_push(skb, sizeof(*unicast_packet)) < 0) goto out; - } unicast_packet = (struct unicast_packet *)skb->data; + unicast_packet->header.version = COMPAT_VERSION; + /* batman packet type: unicast */ + unicast_packet->header.packet_type = BAT_UNICAST; + /* set unicast ttl */ + unicast_packet->header.ttl = TTL; + /* copy the destination for faster routing */ + memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN); + /* set the destination tt version number */ + unicast_packet->ttvn = + (uint8_t)atomic_read(&orig_node->last_ttvn); + /* inform the destination node that we are still missing a correct route * for this client. The destination will receive this packet and will * try to reroute it because the ttvn contained in the header is less @@ -403,9 +339,7 @@ find_router: if (tt_global_client_is_roaming(bat_priv, ethhdr->h_dest)) unicast_packet->ttvn = unicast_packet->ttvn - 1; - /* fragmentation mechanism only works for UNICAST (now) */ - if (packet_type == BAT_UNICAST && - atomic_read(&bat_priv->fragmentation) && + if (atomic_read(&bat_priv->fragmentation) && data_len + sizeof(*unicast_packet) > neigh_node->if_incoming->net_dev->mtu) { /* send frag skb decreases ttl */ @@ -417,6 +351,7 @@ find_router: send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = 0; + goto out; out: if (neigh_node) diff --git a/unicast.h b/unicast.h index e15aa62..a9faf6b 100644 --- a/unicast.h +++ b/unicast.h @@ -30,28 +30,9 @@ int frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv, struct sk_buff **new_skb); void frag_list_free(struct list_head *head); +int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv); int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv, struct hard_iface *hard_iface, const uint8_t dstaddr[]); -bool prepare_unicast_4addr_packet(struct bat_priv *bat_priv, - struct sk_buff *skb, - struct orig_node *orig_node, - int packet_subtype); -int unicast_generic_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv, - int packet_type, int packet_subtype); - -static inline int unicast_send_skb(struct sk_buff *skb, - struct bat_priv *bat_priv) -{ - return unicast_generic_send_skb(skb, bat_priv, BAT_UNICAST, 0); -} - -static inline int unicast_4addr_send_skb(struct sk_buff *skb, - struct bat_priv *bat_priv, - int packet_subtype) -{ - return unicast_generic_send_skb(skb, bat_priv, BAT_UNICAST_4ADDR, - packet_subtype); -} static inline int frag_can_reassemble(const struct sk_buff *skb, int mtu) { -- batman-adv

10 years, 8 months

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batman-adv; branch, master, updated. v2012.1.0-182-g551c540

by postmaster＠open-mesh.org

The following commit has been merged in the master branch: commit 551c540ac5c716a2dd21095e86ec56f1f4d6994a Author: Sven Eckelmann <sven(a)narfation.org> Date: Wed May 16 20:23:25 2012 +0200 batman-adv: Use typedef instead of define for type dat_addr_t This wrong type definition was introduced in a34852f63a694e3f35eb155101120a3c6f4dd6ee Signed-off-by: Sven Eckelmann <sven(a)narfation.org> diff --git a/types.h b/types.h index 6f3d6f6..73aaef9 100644 --- a/types.h +++ b/types.h @@ -30,7 +30,7 @@ * * *Please be careful: dat_addr_t must be UNSIGNED* */ -#define dat_addr_t uint16_t +typedef uint16_t dat_addr_t; #endif /* CONFIG_BATMAN_ADV_DAT */ -- batman-adv

10 years, 8 months

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batman-adv; branch, master, updated. v2012.1.0-181-g34f20d6

by postmaster＠open-mesh.org

The following commit has been merged in the master branch: commit 34f20d6a6490fc2750ac0afac4121fd91499946e Author: Sven Eckelmann <sven(a)narfation.org> Date: Fri May 18 17:16:13 2012 +0200 batman-adv: Prefix bat_sysfs local static functions with batadv_ All non-static symbols of batman-adv were prefixed with batadv_ to avoid collisions with other symbols of the kernel. Other symbols of batman-adv should use the same prefix to keep the naming scheme consistent. This was actually part of patch used to create the commit 98881e49493eb1a6ae2330d861386432064b2222. Signed-off-by: Sven Eckelmann <sven(a)narfation.org> This is the alternative version of this patch... that keeps the functionality for ELP bat_sysfs.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/bat_sysfs.c b/bat_sysfs.c index 336a61d..07fde83 100644 --- a/bat_sysfs.c +++ b/bat_sysfs.c @@ -123,8 +123,9 @@ ssize_t batadv_show_##_name(struct kobject *kobj, \ #define BAT_ATTR_HIF_STORE_UINT(_name, _min, _max, _post_func) \ -ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \ - char *buff, size_t count) \ +ssize_t batadv_store_##_name(struct kobject *kobj, \ + struct attribute *attr, char *buff, \ + size_t count) \ { \ struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ struct hard_iface *hard_iface; \ @@ -142,8 +143,8 @@ ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \ } #define BAT_ATTR_HIF_SHOW_UINT(_name) \ -ssize_t show_##_name(struct kobject *kobj, \ - struct attribute *attr, char *buff) \ +ssize_t batadv_show_##_name(struct kobject *kobj, \ + struct attribute *attr, char *buff) \ { \ struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ struct hard_iface *hard_iface; \ -- batman-adv

10 years, 8 months

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batman-adv; branch, master, updated. v2012.1.0-180-g6977ef4

by postmaster＠open-mesh.org

The following commit has been merged in the master branch: commit 6977ef4a0d7f5340765e98e9595532e4acd576f3 Author: Sven Eckelmann <sven(a)narfation.org> Date: Wed May 16 20:23:23 2012 +0200 batman-adv: Directly print to seq_file in vis The vis output doesn't need to be buffered in an character buffer before it can be send to the userspace program that reads from the vis debug file. Signed-off-by: Sven Eckelmann <sven(a)narfation.org> diff --git a/vis.c b/vis.c index 6b7a1c0..3095c41 100644 --- a/vis.c +++ b/vis.c @@ -140,72 +140,117 @@ static void batadv_vis_data_insert_interface(const uint8_t *interface, hlist_add_head(&entry->list, if_list); } -static ssize_t batadv_vis_prim_sec(char *buff, const struct hlist_head *if_list) +static void batadv_vis_data_read_prim_sec(struct seq_file *seq, + const struct hlist_head *if_list) { struct if_list_entry *entry; struct hlist_node *pos; - size_t len = 0; hlist_for_each_entry(entry, pos, if_list, list) { if (entry->primary) - len += sprintf(buff + len, "PRIMARY, "); + seq_printf(seq, "PRIMARY, "); else - len += sprintf(buff + len, "SEC %pM, ", entry->addr); + seq_printf(seq, "SEC %pM, ", entry->addr); } +} + +/* read an entry */ +static ssize_t batadv_vis_data_read_entry(struct seq_file *seq, + const struct vis_info_entry *entry, + const uint8_t *src, bool primary) +{ + if (primary && entry->quality == 0) + return seq_printf(seq, "TT %pM, ", entry->dest); + else if (batadv_compare_eth(entry->src, src)) + return seq_printf(seq, "TQ %pM %d, ", entry->dest, + entry->quality); + + return 0; +} + +static void batadv_vis_data_insert_interfaces(struct hlist_head *list, + struct vis_packet *packet, + struct vis_info_entry *entries) +{ + int i; + + for (i = 0; i < packet->entries; i++) { + if (entries[i].quality == 0) + continue; - return len; + if (batadv_compare_eth(entries[i].src, packet->vis_orig)) + continue; + + batadv_vis_data_insert_interface(entries[i].src, list, false); + } } -static size_t batadv_vis_cnt_prim_sec(struct hlist_head *if_list) +static void batadv_vis_data_read_entries(struct seq_file *seq, + struct hlist_head *list, + struct vis_packet *packet, + struct vis_info_entry *entries) { + int i; struct if_list_entry *entry; struct hlist_node *pos; - size_t count = 0; - hlist_for_each_entry(entry, pos, if_list, list) { - if (entry->primary) - count += 9; - else - count += 23; - } + hlist_for_each_entry(entry, pos, list, list) { + seq_printf(seq, "%pM,", entry->addr); + + for (i = 0; i < packet->entries; i++) + batadv_vis_data_read_entry(seq, &entries[i], + entry->addr, entry->primary); - return count; + /* add primary/secondary records */ + if (batadv_compare_eth(entry->addr, packet->vis_orig)) + batadv_vis_data_read_prim_sec(seq, list); + + seq_printf(seq, "\n"); + } } -/* read an entry */ -static ssize_t batadv_vis_data_read_entry(char *buff, - const struct vis_info_entry *entry, - const uint8_t *src, bool primary) +static void batadv_vis_seq_print_text_bucket(struct seq_file *seq, + const struct hlist_head *head) { - /* maximal length: max(4+17+2, 3+17+1+3+2) == 26 */ - if (primary && entry->quality == 0) - return sprintf(buff, "TT %pM, ", entry->dest); - else if (batadv_compare_eth(entry->src, src)) - return sprintf(buff, "TQ %pM %d, ", entry->dest, - entry->quality); + struct hlist_node *node; + struct vis_info *info; + struct vis_packet *packet; + uint8_t *entries_pos; + struct vis_info_entry *entries; + struct if_list_entry *entry; + struct hlist_node *pos, *n; - return 0; + HLIST_HEAD(vis_if_list); + + hlist_for_each_entry_rcu(info, node, head, hash_entry) { + packet = (struct vis_packet *)info->skb_packet->data; + entries_pos = (uint8_t *)packet + sizeof(*packet); + entries = (struct vis_info_entry *)entries_pos; + + batadv_vis_data_insert_interface(packet->vis_orig, &vis_if_list, + true); + batadv_vis_data_insert_interfaces(&vis_if_list, packet, + entries); + batadv_vis_data_read_entries(seq, &vis_if_list, packet, + entries); + + hlist_for_each_entry_safe(entry, pos, n, &vis_if_list, list) { + hlist_del(&entry->list); + kfree(entry); + } + } } int batadv_vis_seq_print_text(struct seq_file *seq, void *offset) { struct hard_iface *primary_if; - struct hlist_node *node; struct hlist_head *head; - struct vis_info *info; - struct vis_packet *packet; - struct vis_info_entry *entries; struct net_device *net_dev = (struct net_device *)seq->private; struct bat_priv *bat_priv = netdev_priv(net_dev); struct hashtable_t *hash = bat_priv->vis_hash; - HLIST_HEAD(vis_if_list); - struct if_list_entry *entry; - struct hlist_node *pos, *n; uint32_t i; - int j, ret = 0; + int ret = 0; int vis_server = atomic_read(&bat_priv->vis_mode); - size_t buff_pos, buf_size; - char *buff; primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) @@ -214,120 +259,13 @@ int batadv_vis_seq_print_text(struct seq_file *seq, void *offset) if (vis_server == VIS_TYPE_CLIENT_UPDATE) goto out; - buf_size = 1; - /* Estimate length */ spin_lock_bh(&bat_priv->vis_hash_lock); for (i = 0; i < hash->size; i++) { head = &hash->table[i]; - - rcu_read_lock(); - hlist_for_each_entry_rcu(info, node, head, hash_entry) { - packet = (struct vis_packet *)info->skb_packet->data; - entries = (struct vis_info_entry *) - ((char *)packet + sizeof(*packet)); - - batadv_vis_data_insert_interface(packet->vis_orig, - &vis_if_list, true); - - for (j = 0; j < packet->entries; j++) { - if (entries[j].quality == 0) - continue; - if (batadv_compare_eth(entries[j].src, - packet->vis_orig)) - continue; - batadv_vis_data_insert_interface(entries[j].src, - &vis_if_list, - false); - } - - hlist_for_each_entry(entry, pos, &vis_if_list, list) { - buf_size += 18 + 26 * packet->entries; - - /* add primary/secondary records */ - if (batadv_compare_eth(entry->addr, - packet->vis_orig)) - buf_size += - batadv_vis_cnt_prim_sec(&vis_if_list); - - buf_size += 1; - } - - hlist_for_each_entry_safe(entry, pos, n, &vis_if_list, - list) { - hlist_del(&entry->list); - kfree(entry); - } - } - rcu_read_unlock(); + batadv_vis_seq_print_text_bucket(seq, head); } - - buff = kmalloc(buf_size, GFP_ATOMIC); - if (!buff) { - spin_unlock_bh(&bat_priv->vis_hash_lock); - ret = -ENOMEM; - goto out; - } - buff[0] = '\0'; - buff_pos = 0; - - for (i = 0; i < hash->size; i++) { - head = &hash->table[i]; - - rcu_read_lock(); - hlist_for_each_entry_rcu(info, node, head, hash_entry) { - packet = (struct vis_packet *)info->skb_packet->data; - entries = (struct vis_info_entry *) - ((char *)packet + sizeof(*packet)); - - batadv_vis_data_insert_interface(packet->vis_orig, - &vis_if_list, true); - - for (j = 0; j < packet->entries; j++) { - if (entries[j].quality == 0) - continue; - if (batadv_compare_eth(entries[j].src, - packet->vis_orig)) - continue; - batadv_vis_data_insert_interface(entries[j].src, - &vis_if_list, - false); - } - - hlist_for_each_entry(entry, pos, &vis_if_list, list) { - buff_pos += sprintf(buff + buff_pos, "%pM,", - entry->addr); - - for (j = 0; j < packet->entries; j++) - buff_pos += batadv_vis_data_read_entry( - buff + buff_pos, - &entries[j], - entry->addr, - entry->primary); - - /* add primary/secondary records */ - if (batadv_compare_eth(entry->addr, - packet->vis_orig)) - buff_pos += - batadv_vis_prim_sec(buff + buff_pos, - &vis_if_list); - - buff_pos += sprintf(buff + buff_pos, "\n"); - } - - hlist_for_each_entry_safe(entry, pos, n, &vis_if_list, - list) { - hlist_del(&entry->list); - kfree(entry); - } - } - rcu_read_unlock(); - } - spin_unlock_bh(&bat_priv->vis_hash_lock); - seq_printf(seq, "%s", buff); - kfree(buff); - out: if (primary_if) batadv_hardif_free_ref(primary_if); -- batman-adv

10 years, 8 months

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batman-adv; branch, master, updated. v2012.1.0-179-g52943ab

by postmaster＠open-mesh.org

The following commit has been merged in the master branch: commit 52943abfb3950eb096cdc2009b988f32d7652350 Author: Sven Eckelmann <sven(a)narfation.org> Date: Wed May 16 20:23:22 2012 +0200 batman-adv: Prefix remaining function like macros with batadv_ Signed-off-by: Sven Eckelmann <sven(a)narfation.org> diff --git a/bat_debugfs.c b/bat_debugfs.c index b4d622b..c3f7e2f 100644 --- a/bat_debugfs.c +++ b/bat_debugfs.c @@ -354,8 +354,8 @@ int batadv_debugfs_add_meshif(struct net_device *dev) bat_priv->debug_dir, dev, &(*bat_debug)->fops); if (!file) { - bat_err(dev, "Can't add debugfs file: %s/%s\n", - dev->name, ((*bat_debug)->attr).name); + batadv_err(dev, "Can't add debugfs file: %s/%s\n", + dev->name, ((*bat_debug)->attr).name); goto rem_attr; } } diff --git a/bat_iv_ogm.c b/bat_iv_ogm.c index 70c2c69..9e83f35 100644 --- a/bat_iv_ogm.c +++ b/bat_iv_ogm.c @@ -201,7 +201,7 @@ static void batadv_iv_ogm_send_to_if(struct forw_packet *forw_packet, /* create clone because function is called more than once */ skb = skb_clone(forw_packet->skb, GFP_ATOMIC); if (skb) { - inc_counter(bat_priv, BAT_CNT_MGMT_TX); + batadv_inc_counter(bat_priv, BAT_CNT_MGMT_TX); batadv_add_counter(bat_priv, BAT_CNT_MGMT_TX_BYTES, skb->len + ETH_HLEN); batadv_send_skb_packet(skb, hard_iface, batadv_broadcast_addr); @@ -373,7 +373,7 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff, /* own packet should always be scheduled */ if (!own_packet) { - if (!atomic_dec_not_zero(&bat_priv->batman_queue_left)) { + if (!batadv_atomic_dec_not_zero(&bat_priv->batman_queue_left)) { batadv_dbg(DBG_BATMAN, bat_priv, "batman packet queue full\n"); goto out; @@ -1237,7 +1237,7 @@ static int batadv_iv_ogm_receive(struct sk_buff *skb, if (bat_priv->bat_algo_ops->bat_ogm_emit != batadv_iv_ogm_emit) return NET_RX_DROP; - inc_counter(bat_priv, BAT_CNT_MGMT_RX); + batadv_inc_counter(bat_priv, BAT_CNT_MGMT_RX); batadv_add_counter(bat_priv, BAT_CNT_MGMT_RX_BYTES, skb->len + ETH_HLEN); diff --git a/bat_sysfs.c b/bat_sysfs.c index 0c7a00f..336a61d 100644 --- a/bat_sysfs.c +++ b/bat_sysfs.c @@ -189,18 +189,17 @@ static int batadv_store_bool_attr(char *buff, size_t count, enabled = 0; if (enabled < 0) { - bat_info(net_dev, - "%s: Invalid parameter received: %s\n", - attr_name, buff); + batadv_info(net_dev, "%s: Invalid parameter received: %s\n", + attr_name, buff); return -EINVAL; } if (atomic_read(attr) == enabled) return count; - bat_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name, - atomic_read(attr) == 1 ? "enabled" : "disabled", - enabled == 1 ? "enabled" : "disabled"); + batadv_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name, + atomic_read(attr) == 1 ? "enabled" : "disabled", + enabled == 1 ? "enabled" : "disabled"); atomic_set(attr, (unsigned int)enabled); return count; @@ -233,29 +232,28 @@ static int batadv_store_uint_attr(const char *buff, size_t count, ret = kstrtoul(buff, 10, &uint_val); if (ret) { - bat_info(net_dev, - "%s: Invalid parameter received: %s\n", - attr_name, buff); + batadv_info(net_dev, "%s: Invalid parameter received: %s\n", + attr_name, buff); return -EINVAL; } if (uint_val < min) { - bat_info(net_dev, "%s: Value is too small: %lu min: %u\n", - attr_name, uint_val, min); + batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n", + attr_name, uint_val, min); return -EINVAL; } if (uint_val > max) { - bat_info(net_dev, "%s: Value is too big: %lu max: %u\n", - attr_name, uint_val, max); + batadv_info(net_dev, "%s: Value is too big: %lu max: %u\n", + attr_name, uint_val, max); return -EINVAL; } if (atomic_read(attr) == uint_val) return count; - bat_info(net_dev, "%s: Changing from: %i to: %lu\n", - attr_name, atomic_read(attr), uint_val); + batadv_info(net_dev, "%s: Changing from: %i to: %lu\n", + attr_name, atomic_read(attr), uint_val); atomic_set(attr, uint_val); return count; @@ -297,6 +295,7 @@ static ssize_t batadv_store_vis_mode(struct kobject *kobj, struct bat_priv *bat_priv = netdev_priv(net_dev); unsigned long val; int ret, vis_mode_tmp = -1; + const char *old_mode, *new_mode; ret = kstrtoul(buff, 10, &val); @@ -313,19 +312,27 @@ static ssize_t batadv_store_vis_mode(struct kobject *kobj, if (buff[count - 1] == '\n') buff[count - 1] = '\0'; - bat_info(net_dev, - "Invalid parameter for 'vis mode' setting received: %s\n", - buff); + batadv_info(net_dev, + "Invalid parameter for 'vis mode' setting received: %s\n", + buff); return -EINVAL; } if (atomic_read(&bat_priv->vis_mode) == vis_mode_tmp) return count; - bat_info(net_dev, "Changing vis mode from: %s to: %s\n", - atomic_read(&bat_priv->vis_mode) == VIS_TYPE_CLIENT_UPDATE ? - "client" : "server", vis_mode_tmp == VIS_TYPE_CLIENT_UPDATE ? - "client" : "server"); + if (atomic_read(&bat_priv->vis_mode) == VIS_TYPE_CLIENT_UPDATE) + old_mode = "client"; + else + old_mode = "server"; + + if (vis_mode_tmp == VIS_TYPE_CLIENT_UPDATE) + new_mode = "client"; + else + new_mode = "server"; + + batadv_info(net_dev, "Changing vis mode from: %s to: %s\n", old_mode, + new_mode); atomic_set(&bat_priv->vis_mode, (unsigned int)vis_mode_tmp); return count; @@ -389,9 +396,9 @@ static ssize_t batadv_store_gw_mode(struct kobject *kobj, gw_mode_tmp = GW_MODE_SERVER; if (gw_mode_tmp < 0) { - bat_info(net_dev, - "Invalid parameter for 'gw mode' setting received: %s\n", - buff); + batadv_info(net_dev, + "Invalid parameter for 'gw mode' setting received: %s\n", + buff); return -EINVAL; } @@ -410,8 +417,8 @@ static ssize_t batadv_store_gw_mode(struct kobject *kobj, break; } - bat_info(net_dev, "Changing gw mode from: %s to: %s\n", - curr_gw_mode_str, buff); + batadv_info(net_dev, "Changing gw mode from: %s to: %s\n", + curr_gw_mode_str, buff); batadv_gw_deselect(bat_priv); atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp); @@ -498,8 +505,8 @@ int batadv_sysfs_add_meshif(struct net_device *dev) bat_priv->mesh_obj = kobject_create_and_add(SYSFS_IF_MESH_SUBDIR, batif_kobject); if (!bat_priv->mesh_obj) { - bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, - SYSFS_IF_MESH_SUBDIR); + batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, + SYSFS_IF_MESH_SUBDIR); goto out; } @@ -507,9 +514,9 @@ int batadv_sysfs_add_meshif(struct net_device *dev) err = sysfs_create_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); if (err) { - bat_err(dev, "Can't add sysfs file: %s/%s/%s\n", - dev->name, SYSFS_IF_MESH_SUBDIR, - ((*bat_attr)->attr).name); + batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", + dev->name, SYSFS_IF_MESH_SUBDIR, + ((*bat_attr)->attr).name); goto rem_attr; } } @@ -667,17 +674,17 @@ int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev) hardif_kobject); if (!*hardif_obj) { - bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, - SYSFS_IF_BAT_SUBDIR); + batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, + SYSFS_IF_BAT_SUBDIR); goto out; } for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) { err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr)); if (err) { - bat_err(dev, "Can't add sysfs file: %s/%s/%s\n", - dev->name, SYSFS_IF_BAT_SUBDIR, - ((*bat_attr)->attr).name); + batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", + dev->name, SYSFS_IF_BAT_SUBDIR, + ((*bat_attr)->attr).name); goto rem_attr; } } diff --git a/distributed-arp-table.c b/distributed-arp-table.c index 85e041a..f63cb18 100644 --- a/distributed-arp-table.c +++ b/distributed-arp-table.c @@ -476,7 +476,7 @@ bool batadv_dat_snoop_outgoing_arp_request(struct bat_priv *bat_priv, batadv_dbg(DBG_DAT, bat_priv, "ARP request replied locally\n"); } else { /* Send the request on the DHT */ - inc_counter(bat_priv, BAT_CNT_DAT_REQUEST_TX); + batadv_inc_counter(bat_priv, BAT_CNT_DAT_REQUEST_TX); ret = batadv_dht_send_data(bat_priv, skb, ip_dst, BAT_P_DAT_DHT_GET); } @@ -533,7 +533,7 @@ bool batadv_dat_snoop_incoming_arp_request(struct bat_priv *bat_priv, if (!skb_new) goto out; - inc_counter(bat_priv, BAT_CNT_DAT_REPLY_TX); + batadv_inc_counter(bat_priv, BAT_CNT_DAT_REPLY_TX); batadv_unicast_4addr_send_skb(skb_new, bat_priv, BAT_P_DAT_CACHE_REPLY); @@ -574,7 +574,7 @@ bool batadv_dat_snoop_outgoing_arp_reply(struct bat_priv *bat_priv, batadv_arp_neigh_update(bat_priv, ip_src, hw_src); batadv_arp_neigh_update(bat_priv, ip_dst, hw_dst); - inc_counter(bat_priv, BAT_CNT_DAT_REPLY_TX); + batadv_inc_counter(bat_priv, BAT_CNT_DAT_REPLY_TX); /* Send the ARP reply to the candidates for both the IP addresses we * fetched from the ARP reply diff --git a/gateway_client.c b/gateway_client.c index 8cdcc8e..fe7d846 100644 --- a/gateway_client.c +++ b/gateway_client.c @@ -197,7 +197,7 @@ void batadv_gw_election(struct bat_priv *bat_priv) if (atomic_read(&bat_priv->gw_mode) != GW_MODE_CLIENT) goto out; - if (!atomic_dec_not_zero(&bat_priv->gw_reselect)) + if (!batadv_atomic_dec_not_zero(&bat_priv->gw_reselect)) goto out; curr_gw = batadv_gw_get_selected_gw_node(bat_priv); diff --git a/gateway_common.c b/gateway_common.c index 6edf37f..f5c3980 100644 --- a/gateway_common.c +++ b/gateway_common.c @@ -97,9 +97,9 @@ static bool batadv_parse_gw_bandwidth(struct net_device *net_dev, char *buff, ret = kstrtol(buff, 10, &ldown); if (ret) { - bat_err(net_dev, - "Download speed of gateway mode invalid: %s\n", - buff); + batadv_err(net_dev, + "Download speed of gateway mode invalid: %s\n", + buff); return false; } @@ -122,9 +122,9 @@ static bool batadv_parse_gw_bandwidth(struct net_device *net_dev, char *buff, ret = kstrtol(slash_ptr + 1, 10, &lup); if (ret) { - bat_err(net_dev, - "Upload speed of gateway mode invalid: %s\n", - slash_ptr + 1); + batadv_err(net_dev, + "Upload speed of gateway mode invalid: %s\n", + slash_ptr + 1); return false; } @@ -164,13 +164,13 @@ ssize_t batadv_gw_bandwidth_set(struct net_device *net_dev, char *buff, return count; batadv_gw_deselect(bat_priv); - bat_info(net_dev, - "Changing gateway bandwidth from: '%i' to: '%ld' (propagating: %d%s/%d%s)\n", - atomic_read(&bat_priv->gw_bandwidth), gw_bandwidth_tmp, - (down > 2048 ? down / 1024 : down), - (down > 2048 ? "MBit" : "KBit"), - (up > 2048 ? up / 1024 : up), - (up > 2048 ? "MBit" : "KBit")); + batadv_info(net_dev, + "Changing gateway bandwidth from: '%i' to: '%ld' (propagating: %d%s/%d%s)\n", + atomic_read(&bat_priv->gw_bandwidth), gw_bandwidth_tmp, + (down > 2048 ? down / 1024 : down), + (down > 2048 ? "MBit" : "KBit"), + (up > 2048 ? up / 1024 : up), + (up > 2048 ? "MBit" : "KBit")); atomic_set(&bat_priv->gw_bandwidth, gw_bandwidth_tmp); diff --git a/hard-interface.c b/hard-interface.c index 4b9db9a..dbb9ef4 100644 --- a/hard-interface.c +++ b/hard-interface.c @@ -237,8 +237,8 @@ static void batadv_hardif_activate_interface(struct hard_iface *hard_iface) if (!primary_if) batadv_primary_if_select(bat_priv, hard_iface); - bat_info(hard_iface->soft_iface, "Interface activated: %s\n", - hard_iface->net_dev->name); + batadv_info(hard_iface->soft_iface, "Interface activated: %s\n", + hard_iface->net_dev->name); batadv_update_min_mtu(hard_iface->soft_iface); @@ -255,8 +255,8 @@ static void batadv_hardif_deactivate_interface(struct hard_iface *hard_iface) hard_iface->if_status = IF_INACTIVE; - bat_info(hard_iface->soft_iface, "Interface deactivated: %s\n", - hard_iface->net_dev->name); + batadv_info(hard_iface->soft_iface, "Interface deactivated: %s\n", + hard_iface->net_dev->name); batadv_update_min_mtu(hard_iface->soft_iface); } @@ -318,29 +318,29 @@ int batadv_hardif_enable_interface(struct hard_iface *hard_iface, dev_add_pack(&hard_iface->batman_adv_ptype); atomic_set(&hard_iface->frag_seqno, 1); - bat_info(hard_iface->soft_iface, "Adding interface: %s\n", - hard_iface->net_dev->name); + batadv_info(hard_iface->soft_iface, "Adding interface: %s\n", + hard_iface->net_dev->name); if (atomic_read(&bat_priv->fragmentation) && hard_iface->net_dev->mtu < ETH_DATA_LEN + BAT_HEADER_LEN) - bat_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 %zi would solve the problem.\n", - hard_iface->net_dev->name, hard_iface->net_dev->mtu, - ETH_DATA_LEN + BAT_HEADER_LEN); + 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 %zi would solve the problem.\n", + hard_iface->net_dev->name, hard_iface->net_dev->mtu, + ETH_DATA_LEN + BAT_HEADER_LEN); if (!atomic_read(&bat_priv->fragmentation) && hard_iface->net_dev->mtu < ETH_DATA_LEN + BAT_HEADER_LEN) - bat_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 %zi.\n", - hard_iface->net_dev->name, hard_iface->net_dev->mtu, - ETH_DATA_LEN + BAT_HEADER_LEN); + 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 %zi.\n", + hard_iface->net_dev->name, hard_iface->net_dev->mtu, + ETH_DATA_LEN + BAT_HEADER_LEN); if (batadv_hardif_is_iface_up(hard_iface)) batadv_hardif_activate_interface(hard_iface); else - bat_err(hard_iface->soft_iface, - "Not using interface %s (retrying later): interface not active\n", - hard_iface->net_dev->name); + batadv_err(hard_iface->soft_iface, + "Not using interface %s (retrying later): interface not active\n", + hard_iface->net_dev->name); /* begin scheduling originator messages on that interface */ batadv_schedule_bat_ogm(hard_iface); @@ -366,8 +366,8 @@ void batadv_hardif_disable_interface(struct hard_iface *hard_iface) if (hard_iface->if_status != IF_INACTIVE) goto out; - bat_info(hard_iface->soft_iface, "Removing interface: %s\n", - hard_iface->net_dev->name); + batadv_info(hard_iface->soft_iface, "Removing interface: %s\n", + hard_iface->net_dev->name); dev_remove_pack(&hard_iface->batman_adv_ptype); bat_priv->num_ifaces--; diff --git a/main.h b/main.h index ea5d7d5..977de45 100644 --- a/main.h +++ b/main.h @@ -193,7 +193,7 @@ static inline void batadv_vdbg(int type, struct bat_priv *bat_priv, const char *fmt, va_list args) { if (atomic_read(&bat_priv->log_level) & type) - batadv_debug_log(bat_priv, fmt, args); + batadv_debug_log(bat_priv, fmt, args); } #else /* !CONFIG_BATMAN_ADV_DEBUG */ @@ -218,14 +218,14 @@ static inline void batadv_dbg(int type, struct bat_priv *bat_priv, va_end(args); } -#define bat_info(net_dev, fmt, arg...) \ +#define batadv_info(net_dev, fmt, arg...) \ do { \ struct net_device *_netdev = (net_dev); \ struct bat_priv *_batpriv = netdev_priv(_netdev); \ batadv_dbg(DBG_ALL, _batpriv, fmt, ## arg); \ pr_info("%s: " fmt, _netdev->name, ## arg); \ } while (0) -#define bat_err(net_dev, fmt, arg...) \ +#define batadv_err(net_dev, fmt, arg...) \ do { \ struct net_device *_netdev = (net_dev); \ struct bat_priv *_batpriv = netdev_priv(_netdev); \ @@ -254,10 +254,10 @@ static inline bool batadv_has_timed_out(unsigned long timestamp, return time_is_before_jiffies(timestamp + msecs_to_jiffies(timeout)); } -#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0) +#define batadv_atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0) /* Returns the smallest signed integer in two's complement with the sizeof x */ -#define smallest_signed_int(x) (1u << (7u + 8u * (sizeof(x) - 1u))) +#define batadv_smallest_signed_int(x) (1u << (7u + 8u * (sizeof(x) - 1u))) /* Checks if a sequence number x is a predecessor/successor of y. * they handle overflows/underflows and can correctly check for a @@ -269,12 +269,12 @@ static inline bool batadv_has_timed_out(unsigned long timestamp, * - when adding 128 - it is neither a predecessor nor a successor, * - after adding more than 127 to the starting value - it is a successor */ -#define seq_before(x, y) ({typeof(x) _d1 = (x); \ - typeof(y) _d2 = (y); \ - typeof(x) _dummy = (_d1 - _d2); \ - (void) (&_d1 == &_d2); \ - _dummy > smallest_signed_int(_dummy); }) -#define seq_after(x, y) seq_before(y, x) +#define batadv_seq_before(x, y) ({typeof(x) _d1 = (x); \ + typeof(y) _d2 = (y); \ + typeof(x) _dummy = (_d1 - _d2); \ + (void) (&_d1 == &_d2); \ + _dummy > batadv_smallest_signed_int(_dummy); }) +#define batadv_seq_after(x, y) batadv_seq_before(y, x) /* Stop preemption on local cpu while incrementing the counter */ static inline void batadv_add_counter(struct bat_priv *bat_priv, size_t idx, @@ -285,7 +285,7 @@ static inline void batadv_add_counter(struct bat_priv *bat_priv, size_t idx, put_cpu(); } -#define inc_counter(b, i) batadv_add_counter(b, i, 1) +#define batadv_inc_counter(b, i) batadv_add_counter(b, i, 1) /* Sum and return the cpu-local counters for index 'idx' */ static inline uint64_t batadv_sum_counter(struct bat_priv *bat_priv, size_t idx) diff --git a/routing.c b/routing.c index 4176c78..c3160be 100644 --- a/routing.c +++ b/routing.c @@ -605,7 +605,7 @@ int batadv_recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if) switch (tt_query->flags & TT_QUERY_TYPE_MASK) { case TT_REQUEST: - inc_counter(bat_priv, BAT_CNT_TT_REQUEST_RX); + batadv_inc_counter(bat_priv, BAT_CNT_TT_REQUEST_RX); /* If we cannot provide an answer the tt_request is * forwarded @@ -620,7 +620,7 @@ int batadv_recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if) } break; case TT_RESPONSE: - inc_counter(bat_priv, BAT_CNT_TT_RESPONSE_RX); + batadv_inc_counter(bat_priv, BAT_CNT_TT_RESPONSE_RX); if (batadv_is_my_mac(tt_query->dst)) { /* packet needs to be linearized to access the TT @@ -674,7 +674,7 @@ int batadv_recv_roam_adv(struct sk_buff *skb, struct hard_iface *recv_if) if (is_broadcast_ether_addr(ethhdr->h_source)) goto out; - inc_counter(bat_priv, BAT_CNT_TT_ROAM_ADV_RX); + batadv_inc_counter(bat_priv, BAT_CNT_TT_ROAM_ADV_RX); roam_adv_packet = (struct roam_adv_packet *)skb->data; @@ -896,7 +896,7 @@ static int batadv_route_unicast_packet(struct sk_buff *skb, unicast_packet->header.ttl--; /* Update stats counter */ - inc_counter(bat_priv, BAT_CNT_FORWARD); + batadv_inc_counter(bat_priv, BAT_CNT_FORWARD); batadv_add_counter(bat_priv, BAT_CNT_FORWARD_BYTES, skb->len + ETH_HLEN); @@ -920,6 +920,7 @@ static int batadv_check_unicast_ttvn(struct bat_priv *bat_priv, struct hard_iface *primary_if; struct unicast_packet *unicast_packet; bool tt_poss_change; + int is_old_ttvn; /* I could need to modify it */ if (skb_cow(skb, sizeof(struct unicast_packet)) < 0) @@ -943,7 +944,8 @@ static int batadv_check_unicast_ttvn(struct bat_priv *bat_priv, } /* Check whether I have to reroute the packet */ - if (seq_before(unicast_packet->ttvn, curr_ttvn) || tt_poss_change) { + is_old_ttvn = batadv_seq_before(unicast_packet->ttvn, curr_ttvn); + if (is_old_ttvn || tt_poss_change) { /* check if there is enough data before accessing it */ if (pskb_may_pull(skb, sizeof(struct unicast_packet) + ETH_HLEN) < 0) diff --git a/send.c b/send.c index e19265a..d38fe2a 100644 --- a/send.c +++ b/send.c @@ -142,7 +142,7 @@ int batadv_add_bcast_packet_to_list(struct bat_priv *bat_priv, struct bcast_packet *bcast_packet; struct sk_buff *newskb; - if (!atomic_dec_not_zero(&bat_priv->bcast_queue_left)) { + if (!batadv_atomic_dec_not_zero(&bat_priv->bcast_queue_left)) { batadv_dbg(DBG_BATMAN, bat_priv, "bcast packet queue full\n"); goto out; } diff --git a/translation-table.c b/translation-table.c index 62dda2b..cb1d3a8 100644 --- a/translation-table.c +++ b/translation-table.c @@ -1431,7 +1431,7 @@ static int batadv_send_tt_request(struct bat_priv *bat_priv, dst_orig_node->orig, neigh_node->addr, (full_table ? 'F' : '.')); - inc_counter(bat_priv, BAT_CNT_TT_REQUEST_TX); + batadv_inc_counter(bat_priv, BAT_CNT_TT_REQUEST_TX); batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = 0; @@ -1559,7 +1559,7 @@ static bool batadv_send_other_tt_response(struct bat_priv *bat_priv, res_dst_orig_node->orig, neigh_node->addr, req_dst_orig_node->orig, req_ttvn); - inc_counter(bat_priv, BAT_CNT_TT_RESPONSE_TX); + batadv_inc_counter(bat_priv, BAT_CNT_TT_RESPONSE_TX); batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = true; @@ -1680,7 +1680,7 @@ static bool batadv_send_my_tt_response(struct bat_priv *bat_priv, orig_node->orig, neigh_node->addr, (tt_response->flags & TT_FULL_TABLE ? 'F' : '.')); - inc_counter(bat_priv, BAT_CNT_TT_RESPONSE_TX); + batadv_inc_counter(bat_priv, BAT_CNT_TT_RESPONSE_TX); batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = true; @@ -1930,7 +1930,7 @@ static bool batadv_tt_check_roam_count(struct bat_priv *bat_priv, ROAMING_MAX_TIME)) continue; - if (!atomic_dec_not_zero(&tt_roam_node->counter)) + if (!batadv_atomic_dec_not_zero(&tt_roam_node->counter)) /* Sorry, you roamed too many times! */ goto unlock; ret = true; @@ -1998,7 +1998,7 @@ static void batadv_send_roam_adv(struct bat_priv *bat_priv, uint8_t *client, "Sending ROAMING_ADV to %pM (client %pM) via %pM\n", orig_node->orig, client, neigh_node->addr); - inc_counter(bat_priv, BAT_CNT_TT_ROAM_ADV_TX); + batadv_inc_counter(bat_priv, BAT_CNT_TT_ROAM_ADV_TX); batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); ret = 0; @@ -2162,7 +2162,7 @@ int batadv_tt_append_diff(struct bat_priv *bat_priv, /* if the changes have been sent often enough */ if ((tt_num_changes < 0) && - (!atomic_dec_not_zero(&bat_priv->tt_ogm_append_cnt))) { + (!batadv_atomic_dec_not_zero(&bat_priv->tt_ogm_append_cnt))) { batadv_tt_realloc_packet_buff(packet_buff, packet_buff_len, packet_min_len, packet_min_len); tt_num_changes = 0; diff --git a/vis.c b/vis.c index 607b101..6b7a1c0 100644 --- a/vis.c +++ b/vis.c @@ -424,8 +424,8 @@ static struct vis_info *batadv_add_packet(struct bat_priv *bat_priv, if (old_info) { old_packet = (struct vis_packet *)old_info->skb_packet->data; - if (!seq_after(ntohl(vis_packet->seqno), - ntohl(old_packet->seqno))) { + if (!batadv_seq_after(ntohl(vis_packet->seqno), + ntohl(old_packet->seqno))) { if (old_packet->seqno == vis_packet->seqno) { batadv_recv_list_add(bat_priv, &old_info->recv_list, -- batman-adv

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commits May 2012