net 03/05: fib_rules: add oif classification
commit 68144d350f4f6c348659c825cde6a82b34c27a91
Author: Patrick McHardy <kaber@trash.net>
Date: Thu Dec 3 12:05:25 2009 +0100
net: fib_rules: add oif classification
Support routing table lookup based on the flow's oif. This is useful to
classify packets originating from sockets bound to interfaces differently.
The route cache already includes the oif and needs no changes.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/fib_rules.h b/include/linux/fib_rules.h
index 7e11bb2..51da65b 100644
--- a/include/linux/fib_rules.h
+++ b/include/linux/fib_rules.h
@@ -10,6 +10,7 @@
#define FIB_RULE_UNRESOLVED 0x00000004
#define FIB_RULE_IIF_DETACHED 0x00000008
#define FIB_RULE_DEV_DETACHED FIB_RULE_IIF_DETACHED
+#define FIB_RULE_OIF_DETACHED 0x00000010
/* try to find source address in routing lookups */
#define FIB_RULE_FIND_SADDR 0x00010000
@@ -47,6 +48,7 @@
FRA_UNUSED8,
FRA_TABLE, /* Extended table id */
FRA_FWMASK, /* mask for netfilter mark */
+ FRA_OIFNAME,
__FRA_MAX
};
diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 62bebcb..d4e875a 100644
--- a/include/net/fib_rules.h
+++ b/include/net/fib_rules.h
@@ -11,6 +11,7 @@
struct list_head list;
atomic_t refcnt;
int iifindex;
+ int oifindex;
u32 mark;
u32 mark_mask;
u32 pref;
@@ -20,6 +21,7 @@
u32 target;
struct fib_rule * ctarget;
char iifname[IFNAMSIZ];
+ char oifname[IFNAMSIZ];
struct rcu_head rcu;
struct net * fr_net;
};
@@ -68,6 +70,7 @@
#define FRA_GENERIC_POLICY \
[FRA_IIFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \
+ [FRA_OIFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 }, \
[FRA_PRIORITY] = { .type = NLA_U32 }, \
[FRA_FWMARK] = { .type = NLA_U32 }, \
[FRA_FWMASK] = { .type = NLA_U32 }, \