linux/include/net/ip.h, branch v2.6.24

[INET]: Consolidate the xxx_evictor

2007-10-15T19:26:42Z

The evictors collect some statistics for ipv4 and ipv6, so make it return the number of evicted queues and account them all at once in the caller. The XXX_ADD_STATS_BH() macros are just for this case, but maybe there are places in code, that can make use of them as well. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller

[INET]: Collect common frag sysctl variables together

2007-10-15T19:26:40Z

Some sysctl variables are used to tune the frag queues management and it will be useful to work with them in a common way in the future, so move them into one structure, moreover they are the same for all the frag management codes. I don't place them in the existing inet_frags object, introduced in the previous patch for two reasons: 1. to keep them in the __read_mostly section; 2. not to export the whole inet_frags objects outside. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller

[INET]: Collect frag queues management objects together

2007-10-15T19:26:39Z

There are some objects that are common in all the places which are used to keep track of frag queues, they are: * hash table * LRU list * rw lock * rnd number for hash function * the number of queues * the amount of memory occupied by queues * secret timer Move all this stuff into one structure (struct inet_frags) to make it possible use them uniformly in the future. Like with the previous patch this mostly consists of hunks like - write_lock(&ipfrag_lock); + write_lock(&ip4_frags.lock); To address the issue with exporting the number of queues and the amount of memory occupied by queues outside the .c file they are declared in, I introduce a couple of helpers. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller

[IPV4]: Change ip_defrag to return an integer

2007-10-15T19:26:25Z

Now that ip_frag always returns the packet given to it on input, we can change it to return an integer indicating error instead. This patch does that and updates all its callers accordingly. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller

[INET]: local port range robustness

2007-10-11T00:30:46Z

Expansion of original idea from Denis V. Lunev Add robustness and locking to the local_port_range sysctl. 1. Enforce that low < high when setting. 2. Use seqlock to ensure atomic update. The locking might seem like overkill, but there are cases where sysadmin might want to change value in the middle of a DoS attack. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

[TCP]: Honour sk_bound_dev_if in tcp_v4_send_ack

2007-06-07T20:38:51Z

A time_wait socket inherits sk_bound_dev_if from the original socket, but it is not used when sending ACK packets using ip_send_reply. Fix by passing the oif to ip_send_reply in struct ip_reply_arg and use it for output routing. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller

[IPV4]: Consolidate common SNMP code

2007-04-26T05:29:51Z

This patch moves the SNMP code shared between IPv4/IPv6 from proc.c into net/ipv4/af_inet.c. This makes sense because these functions aren't specific to /proc. As a result we can again skip proc.o if /proc is disabled. Signed-off-by: Herbert Xu Acked-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller

[IPV4] SNMP: Move some statistic bits to net/ipv4/proc.c.

2007-04-26T05:29:12Z

This also fixes memory leak in error path. Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller

[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph

2007-04-26T05:25:10Z

Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller

[IP]: Introduce ip_hdrlen()

2007-04-26T05:25:07Z

For the common sequence "skb->nh.iph->ihl * 4", removing a good number of open coded skb->nh.iph uses, now to go after the rest... Just out of curiosity, here are the idioms found to get the same result: skb->nh.iph->ihl << 2 skb->nh.iph->ihl<<2 skb->nh.iph->ihl * 4 skb->nh.iph->ihl*4 (skb->nh.iph)->ihl * sizeof(u32) Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller