The following commit has been merged in the next branch: commit 6f6adecef1b5a5f2fdee5dbed601248e24d5ee94 Author: Antonio Quartulli ordex@autistici.org Date: Sun Nov 6 12:23:55 2011 +0100

batman-adv: Distributed ARP Table - add compile option

This patch makes it possible to decide whether to include DAT within the batman-adv binary or not. It is extremely useful when the user wants to reduce the size of the resulting module by cutting off any not needed feature.

Signed-off-by: Antonio Quartulli ordex@autistici.org

diff --git a/Makefile b/Makefile index 08f8c39..ac84fba 100644 --- a/Makefile +++ b/Makefile @@ -23,6 +23,8 @@ 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 84955b3..ad002cd 100644 --- a/Makefile.kbuild +++ b/Makefile.kbuild @@ -24,7 +24,7 @@ batman-adv-y += bat_iv_ogm.o batman-adv-y += bat_sysfs.o batman-adv-y += bitarray.o batman-adv-$(CONFIG_BATMAN_ADV_BLA) += bridge_loop_avoidance.o -batman-adv-y += distributed-arp-table.o +batman-adv-$(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.external b/README.external index 1eff0f9..95a7eb4 100644 --- a/README.external +++ b/README.external @@ -37,6 +37,7 @@ 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/distributed-arp-table.h b/distributed-arp-table.h index 235b2a4..0916661 100644 --- a/distributed-arp-table.h +++ b/distributed-arp-table.h @@ -22,6 +22,8 @@ #ifndef _NET_BATMAN_ADV_ARP_H_ #define _NET_BATMAN_ADV_ARP_H_

+#ifdef CONFIG_BATMAN_ADV_DAT + #include "types.h" #include "originator.h"

@@ -84,4 +86,17 @@ static inline void dat_init_own_dht_addr(struct bat_priv *bat_priv, DAT_ADDR_MAX); }

+#else + +#define dat_snoop_outgoing_arp_request(...) (0) +#define dat_snoop_incoming_arp_request(...) (0) +#define dat_snoop_outgoing_arp_reply(...) +#define dat_snoop_incoming_arp_reply(...) (0) +#define dat_drop_broadcast_packet(...) (0) +#define arp_change_timeout(...) +#define dat_init_orig_node_dht_addr(...) +#define dat_init_own_dht_addr(...) + +#endif /* CONFIG_BATMAN_ADV_DAT */ + #endif /* _NET_BATMAN_ADV_ARP_H_ */ diff --git a/gen-compat-autoconf.sh b/gen-compat-autoconf.sh index 7cf621b..7ea42aa 100755 --- a/gen-compat-autoconf.sh +++ b/gen-compat-autoconf.sh @@ -38,6 +38,7 @@ 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/types.h b/types.h index 210ee3e..6a3cc88 100644 --- a/types.h +++ b/types.h @@ -27,6 +27,8 @@ #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. @@ -35,6 +37,8 @@ */ #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) : \ @@ -75,7 +79,9 @@ 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; @@ -230,7 +236,9 @@ 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; };