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  1. 22 7月, 2008 1 次提交
  3. 18 7月, 2008 1 次提交
  5. 17 7月, 2008 2 次提交
  7. 15 7月, 2008 2 次提交
  9. 06 7月, 2008 2 次提交
  11. 18 6月, 2008 1 次提交
    • E
      udp: sk_drops handling · cb61cb9b
      由 Eric Dumazet 提交于 
      In commits 33c732c3 ([IPV4]: Add raw
drops counter) and a92aa318 ([IPV6]:
Add raw drops counter), Wang Chen added raw drops counter for
/proc/net/raw & /proc/net/raw6

This patch adds this capability to UDP sockets too (/proc/net/udp &
/proc/net/udp6).

This means that 'RcvbufErrors' errors found in /proc/net/snmp can be also
be examined for each udp socket.

# grep Udp: /proc/net/snmp
Udp: InDatagrams NoPorts InErrors OutDatagrams RcvbufErrors SndbufErrors
Udp: 23971006 75 899420 16390693 146348 0

# cat /proc/net/udp
 sl  local_address rem_address   st tx_queue rx_queue tr tm->when retrnsmt  ---
uid  timeout inode ref pointer drops
 75: 00000000:02CB 00000000:0000 07 00000000:00000000 00:00000000 00000000  ---
  0        0 2358 2 ffff81082a538c80 0
111: 00000000:006F 00000000:0000 07 00000000:00000000 00:00000000 00000000  ---
  0        0 2286 2 ffff81042dd35c80 146348

In this example, only port 111 (0x006F) was flooded by messages that
user program could not read fast enough. 146348 messages were lost.
Signed-off-by: NEric Dumazet <dada1@cosmosbay.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      cb61cb9b
  13. 17 6月, 2008 3 次提交
  15. 15 6月, 2008 1 次提交
  17. 12 6月, 2008 1 次提交
  19. 05 6月, 2008 1 次提交
  21. 02 5月, 2008 1 次提交
  23. 24 4月, 2008 1 次提交
  25. 14 4月, 2008 1 次提交
  27. 01 4月, 2008 2 次提交
  29. 29 3月, 2008 7 次提交
  31. 26 3月, 2008 3 次提交
  33. 25 3月, 2008 3 次提交
  35. 23 3月, 2008 1 次提交
  37. 22 3月, 2008 1 次提交
    • P
      [NET]: NULL pointer dereference and other nasty things in /proc/net/(tcp|udp)[6] · 28518fc1
      由 Pavel Emelyanov 提交于 
      Commits f40c81 ([NETNS][IPV4] tcp - make proc handle the network
namespaces) and a91275 ([NETNS][IPV6] udp - make proc handle the
network namespace) both introduced bad checks on sockets and tw
buckets to belong to proper net namespace.

I.e. when checking for socket to belong to given net and family the

	do {
		sk = sk_next(sk);
	} while (sk && sk->sk_net != net && sk->sk_family != family);

constructions were used. This is wrong, since as soon as the
sk->sk_net fits the net the socket is immediately returned, even if it
belongs to other family.

As the result four /proc/net/(udp|tcp)[6] entries show wrong info.
The udp6 entry even oopses when dereferencing inet6_sk(sk) pointer:

static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket)
{
	...
        struct ipv6_pinfo *np = inet6_sk(sp);
	...

        dest  = &np->daddr; /* will be NULL for AF_INET sockets */
	...
	seq_printf(...
	           dest->s6_addr32[0], dest->s6_addr32[1],
                   dest->s6_addr32[2], dest->s6_addr32[3],
	...

Fix it by converting && to ||.
Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
Acked-by: NDaniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      28518fc1
  39. 21 3月, 2008 2 次提交
  41. 07 3月, 2008 1 次提交
    • D
      [UDP]: Revert udplite and code split. · db8dac20
      由 David S. Miller 提交于 
      This reverts commit db1ed684 ("[IPV6]
UDP: Rename IPv6 UDP files."), commit
8be8af8f ("[IPV4] UDP: Move
IPv4-specific bits to other file.") and commit
e898d4db ("[UDP]: Allow users to
configure UDP-Lite.").

First, udplite is of such small cost, and it is a core protocol just
like TCP and normal UDP are.

We spent enormous amounts of effort to make udplite share as much code
with core UDP as possible.  All of that work is less valuable if we're
just going to slap a config option on udplite support.

It is also causing build failures, as reported on linux-next, showing
that the changeset was not tested very well.  In fact, this is the
second build failure resulting from the udplite change.

Finally, the config options provided was a bool, instead of a modular
option.  Meaning the udplite code does not even get build tested
by allmodconfig builds, and furthermore the user is not presented
with a reasonable modular build option which is particularly needed
by distribution vendors.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      db8dac20
  43. 04 3月, 2008 2 次提交