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| author | Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> | 2016-01-22 18:29:49 -0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-01-24 22:43:21 -0800 |
| commit | 27f7ed2b11d42ab6d796e96533c2076ec220affc (patch) | |
| tree | fb1232a621d48ec214484cad838278e679f0ea88 /net | |
| parent | facc432faa59414bd7c60c307ff1645154a66c98 (diff) | |
| download | lwn-27f7ed2b11d42ab6d796e96533c2076ec220affc.tar.gz lwn-27f7ed2b11d42ab6d796e96533c2076ec220affc.zip | |
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')
| -rw-r--r-- | net/sctp/socket.c | 2 |
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; |