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| author | Brian Haley <brian.haley@hp.com> | 2010-04-23 11:26:08 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-23 23:35:28 -0700 |
| commit | 13b52cd44670e3359055e9918d0e766d89836425 (patch) | |
| tree | 7685597f218fd02dab9abdb32ea0d4ec7c318027 /net/ipv6/udp.c | |
| parent | 793b14731686595a741d9f47726ad8b9a235385a (diff) | |
| download | linux-3.10-13b52cd44670e3359055e9918d0e766d89836425.tar.gz linux-3.10-13b52cd44670e3359055e9918d0e766d89836425.tar.bz2 linux-3.10-13b52cd44670e3359055e9918d0e766d89836425.zip | |
IPv6: Add dontfrag argument to relevant functions
Add dontfrag argument to relevant functions for
IPV6_DONTFRAG support, as well as allowing the value
to be passed-in via ancillary cmsg 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 | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 92bf9033e24..39e3665d946 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -919,6 +919,7 @@ int udpv6_sendmsg(struct kiocb *iocb, struct sock *sk, int ulen = len; int hlimit = -1; int tclass = -1; + int dontfrag = -1; int corkreq = up->corkflag || msg->msg_flags&MSG_MORE; int err; int connected = 0; @@ -1049,7 +1050,8 @@ do_udp_sendmsg: memset(opt, 0, sizeof(struct ipv6_txoptions)); opt->tot_len = sizeof(*opt); - err = datagram_send_ctl(sock_net(sk), msg, &fl, opt, &hlimit, &tclass); + err = datagram_send_ctl(sock_net(sk), msg, &fl, opt, &hlimit, + &tclass, &dontfrag); if (err < 0) { fl6_sock_release(flowlabel); return err; @@ -1120,6 +1122,9 @@ do_udp_sendmsg: if (tclass < 0) tclass = np->tclass; + if (dontfrag < 0) + dontfrag = np->dontfrag; + if (msg->msg_flags&MSG_CONFIRM) goto do_confirm; back_from_confirm: @@ -1143,7 +1148,7 @@ do_append_data: err = ip6_append_data(sk, getfrag, msg->msg_iov, ulen, sizeof(struct udphdr), hlimit, tclass, opt, &fl, (struct rt6_info*)dst, - corkreq ? msg->msg_flags|MSG_MORE : msg->msg_flags); + corkreq ? msg->msg_flags|MSG_MORE : msg->msg_flags, dontfrag); if (err) udp_v6_flush_pending_frames(sk); else if (!corkreq) |