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| author | Brian Haley <brian.haley@hp.com> | 2010-04-23 11:26:09 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-23 23:35:29 -0700 |
| commit | 4b340ae20d0e2366792abe70f46629e576adaf5e (patch) | |
| tree | b0c413a0348e722fbc23d45508224076b6e60f92 /net/ipv6/udp.c | |
| parent | 13b52cd44670e3359055e9918d0e766d89836425 (diff) | |
| download | linux-3.10-4b340ae20d0e2366792abe70f46629e576adaf5e.tar.gz linux-3.10-4b340ae20d0e2366792abe70f46629e576adaf5e.tar.bz2 linux-3.10-4b340ae20d0e2366792abe70f46629e576adaf5e.zip | |
IPv6: Complete IPV6_DONTFRAG support
Finally add support to detect a local IPV6_DONTFRAG event
and return the relevant data to the user if they've enabled
IPV6_RECVPATHMTU on the socket. The next recvmsg() will
return no data, but have an IPV6_PATHMTU as ancillary data.
Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/udp.c')
| -rw-r--r-- | net/ipv6/udp.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 39e3665d946..2850e35cee3 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -335,6 +335,9 @@ int udpv6_recvmsg(struct kiocb *iocb, struct sock *sk, if (flags & MSG_ERRQUEUE) return ipv6_recv_error(sk, msg, len); + if (np->rxpmtu && np->rxopt.bits.rxpmtu) + return ipv6_recv_rxpmtu(sk, msg, len); + try_again: skb = __skb_recv_datagram(sk, flags | (noblock ? MSG_DONTWAIT : 0), &peeked, &err); |