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authorDavid S. Miller <davem@davemloft.net>2011-02-05 02:55:25 +0300
committerDavid S. Miller <davem@davemloft.net>2011-02-05 02:59:53 +0300
commit92d8682926342d2b6aa5b2ecc02221e00e1573a0 (patch)
tree7f70b9cc2975716ab60ddd632b9fecf0a51b828d /include/net/inetpeer.h
parent0131ba451e20239c5dc701027c1a2edef95e1a6e (diff)
downloadlinux-92d8682926342d2b6aa5b2ecc02221e00e1573a0.tar.xz
inetpeer: Move ICMP rate limiting state into inet_peer entries.
Like metrics, the ICMP rate limiting bits are cached state about a destination. So move it into the inet_peer entries. If an inet_peer cannot be bound (the reason is memory allocation failure or similar), the policy is to allow. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/inetpeer.h')
-rw-r--r--include/net/inetpeer.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 61f2c66edb2a..ead2cb2de18c 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -44,6 +44,8 @@ struct inet_peer {
__u32 tcp_ts;
__u32 tcp_ts_stamp;
u32 metrics[RTAX_MAX];
+ u32 rate_tokens; /* rate limiting for ICMP */
+ unsigned long rate_last;
};
struct rcu_head rcu;
};
@@ -81,6 +83,7 @@ static inline struct inet_peer *inet_getpeer_v6(struct in6_addr *v6daddr, int cr
/* can be called from BH context or outside */
extern void inet_putpeer(struct inet_peer *p);
+extern bool inet_peer_xrlim_allow(struct inet_peer *peer, int timeout);
/*
* temporary check to make sure we dont access rid, ip_id_count, tcp_ts,