linux-toradex.git/net/ipv6/udp.c, branch v2.6.25.7

[NETNS]: Udp sockets per-net lookup.

2008-02-01T03:28:21+00:00

Add the net parameter to udp_get_port family of calls and
udp_lookup one and use it to filter sockets.

Signed-off-by: Pavel Emelyanov 
Signed-off-by: David S. Miller

[IPV6] UDP,UDPLITE: Sparse: {__udp6_lib,udp,udplite}_err() are of void.

2008-01-28T23:10:25+00:00

Fix following sparse warnings:
| net/ipv6/udp.c:262:2: warning: returning void-valued expression
| net/ipv6/udplite.c:29:2: warning: returning void-valued expression

Signed-off-by: YOSHIFUJI Hideaki

[UDP]: Add memory accounting.

2008-01-28T23:00:19+00:00

Signed-off-by: Takahiro Yasui 
Signed-off-by: Hideo Aoki 
Signed-off-by: David S. Miller

[UDP]: Move udp_stats_in6 into net/ipv4/udp.c

2008-01-28T22:58:06+00:00

Now that external users may increment the counters directly, we need
to ensure that udp_stats_in6 is always available.  Otherwise we'd
either have to requrie the external users to be built as modules or
ipv6 to be built-in.

This isn't too bad because udp_stats_in6 is just a pair of pointers
plus an EXPORT, e.g., just 40 (16 + 24) bytes on x86-64.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

[IPV6]: fix section mismatch warnings

2008-01-28T22:57:46+00:00

Removed useless and buggy __exit section in the different
ipv6 subsystems. Otherwise they will be called inside an
init section during rollbacking in case of an error in the
protocol initialization.

Signed-off-by: Daniel Lezcano 
Signed-off-by: David S. Miller

[IPSEC]: Make callers of xfrm_lookup to use XFRM_LOOKUP_WAIT

2008-01-28T22:57:42+00:00

This patch converts all callers of xfrm_lookup that used an
explicit value of 1 to indiciate blocking to use the new flag
XFRM_LOOKUP_WAIT.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

[IPV6]: make the protocol initialization to return an error code

2008-01-28T22:57:13+00:00

This patchset makes the different protocols to return an error code, so
the af_inet6 module can check the initialization was correct or not.

The raw6 was taken into account to be consistent with the rest of the
protocols, but the registration is at the same place.
Because the raw6 has its own init function, the proto and the ops structure
can be moved inside the raw6.c file.

Signed-off-by: Daniel Lezcano 
Signed-off-by: David S. Miller

[UDP]: Only increment counter on first peek/recv

2008-01-28T22:56:34+00:00

The previous move of the the UDP inDatagrams counter caused each
peek of the same packet to be counted separately.  This may be
undesirable.

This patch fixes this by adding a bit to sk_buff to record whether
this packet has already been seen through skb_recv_datagram.  We
then only increment the counter when the packet is seen for the
first time.

The only dodgy part is the fact that skb_recv_datagram doesn't have
a good way of returning this new bit of information.  So I've added
a new function __skb_recv_datagram that does return this and made
skb_recv_datagram a wrapper around it.

The plan is to eventually replace all uses of skb_recv_datagram with
this new function at which time it can be renamed its proper name.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

[UDP]: Restore missing inDatagrams increments

2008-01-28T22:56:33+00:00

The previous move of the the UDP inDatagrams counter caused the
counting of encapsulated packets, SUNRPC data (as opposed to call)
packets and RXRPC packets to go missing.

This patch restores all of these.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

[UDP]: Avoid repeated counting of checksum errors due to peeking

2008-01-28T22:56:32+00:00

Currently it is possible for two processes to peek on the same socket
and end up incrementing the error counter twice for the same packet.

This patch fixes it by making skb_kill_datagram return whether it
succeeded in unlinking the packet and only incrementing the counter
if it did.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller