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authorGeir Ola Vaagland <geirola@gmail.com>2014-07-12 20:30:36 +0200
committerDavid S. Miller <davem@davemloft.net>2014-07-16 14:40:03 -0700
commit63b949382c5f263746b1c177f6ff84de2201ae9d (patch)
tree5e946189fa98de8699606a6f6ec8165ee8e0ed1e /include/net/sctp
parent1a98c69af1ecd97bfd1f4e4539924a9192434e36 (diff)
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.h3
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 */