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Diffstat (limited to 'net/ipv6/udp.c')
-rw-r--r--net/ipv6/udp.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 92bf903..39e3665 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)
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