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authorMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>2016-01-22 23:29:49 +0300
committerDavid S. Miller <davem@davemloft.net>2016-01-25 09:43:21 +0300
commit27f7ed2b11d42ab6d796e96533c2076ec220affc (patch)
treefb1232a621d48ec214484cad838278e679f0ea88 /net/sctp
parentfacc432faa59414bd7c60c307ff1645154a66c98 (diff)
downloadlinux-27f7ed2b11d42ab6d796e96533c2076ec220affc.tar.xz
sctp: allow setting SCTP_SACK_IMMEDIATELY by the application
This patch extends commit b93d6471748d ("sctp: implement the sender side for SACK-IMMEDIATELY extension") as it didn't white list SCTP_SACK_IMMEDIATELY on sctp_msghdr_parse(), causing it to be understood as an invalid flag and returning -EINVAL to the application. Note that the actual handling of the flag is already there in sctp_datamsg_from_user(). https://tools.ietf.org/html/rfc7053#section-7 Fixes: b93d6471748d ("sctp: implement the sender side for SACK-IMMEDIATELY extension") Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/socket.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 9bb80ec4c08f..5ca2ebfe0be8 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -6636,6 +6636,7 @@ static int sctp_msghdr_parse(const struct msghdr *msg, sctp_cmsgs_t *cmsgs)
if (cmsgs->srinfo->sinfo_flags &
~(SCTP_UNORDERED | SCTP_ADDR_OVER |
+ SCTP_SACK_IMMEDIATELY |
SCTP_ABORT | SCTP_EOF))
return -EINVAL;
break;
@@ -6659,6 +6660,7 @@ static int sctp_msghdr_parse(const struct msghdr *msg, sctp_cmsgs_t *cmsgs)
if (cmsgs->sinfo->snd_flags &
~(SCTP_UNORDERED | SCTP_ADDR_OVER |
+ SCTP_SACK_IMMEDIATELY |
SCTP_ABORT | SCTP_EOF))
return -EINVAL;
break;