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| author | Geir Ola Vaagland <geirola@gmail.com> | 2014-07-12 20:30:36 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-16 14:40:03 -0700 |
| commit | 63b949382c5f263746b1c177f6ff84de2201ae9d (patch) | |
| tree | 5e946189fa98de8699606a6f6ec8165ee8e0ed1e /include/net/sctp | |
| parent | 1a98c69af1ecd97bfd1f4e4539924a9192434e36 (diff) | |
| download | blackbird-obmc-linux-63b949382c5f263746b1c177f6ff84de2201ae9d.tar.gz blackbird-obmc-linux-63b949382c5f263746b1c177f6ff84de2201ae9d.zip | |
net: sctp: implement rfc6458, 5.3.4. SCTP_SNDINFO cmsg support
This patch implements section 5.3.4. of RFC6458, that is, support
for 'SCTP Send Information Structure' (SCTP_SNDINFO) which can be
placed into ancillary data cmsghdr structure for sendmsg() calls.
The sctp_sndinfo structure is defined as per RFC as below ...
struct sctp_sndinfo {
uint16_t snd_sid;
uint16_t snd_flags;
uint32_t snd_ppid;
uint32_t snd_context;
sctp_assoc_t snd_assoc_id;
};
... and supplied under cmsg_level IPPROTO_SCTP, cmsg_type
SCTP_SNDINFO, while cmsg_data[] contains struct sctp_sndinfo.
An sctp_sndinfo item always corresponds to the data in msg_iov.
Joint work with Daniel Borkmann.
Signed-off-by: Geir Ola Vaagland <geirola@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sctp')
| -rw-r--r-- | include/net/sctp/structs.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index f38588bf3462..7af9a0f5d8ce 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -1919,7 +1919,8 @@ struct sctp_chunk *sctp_get_ecne_prepend(struct sctp_association *asoc); /* A convenience structure to parse out SCTP specific CMSGs. */ typedef struct sctp_cmsgs { struct sctp_initmsg *init; - struct sctp_sndrcvinfo *info; + struct sctp_sndrcvinfo *srinfo; + struct sctp_sndinfo *sinfo; } sctp_cmsgs_t; /* Structure for tracking memory objects */ |
