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| author | Xin Long <lucien.xin@gmail.com> | 2017-12-15 00:41:25 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-15 13:52:21 -0500 |
| commit | 2d07a49aded490a0a4a2748e64030a0f59b6b8be (patch) | |
| tree | 002bb4a971000aeeadcc77611c04136314d20496 /include/linux/sctp.h | |
| parent | 024778095aa340960fdfd7f7db293290454fbce2 (diff) | |
| download | lwn-2d07a49aded490a0a4a2748e64030a0f59b6b8be.tar.gz lwn-2d07a49aded490a0a4a2748e64030a0f59b6b8be.zip | |
sctp: add basic structures and make chunk function for ifwdtsn
sctp_ifwdtsn_skip, sctp_ifwdtsn_hdr and sctp_ifwdtsn_chunk are used to
define and parse I-FWD TSN chunk format, and sctp_make_ifwdtsn is a
function to build the chunk.
The I-FORWARD-TSN Chunk Format is defined in section 2.3.1 of RFC8260.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo R. Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/sctp.h')
| -rw-r--r-- | include/linux/sctp.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/sctp.h b/include/linux/sctp.h index 38e2cf66195f..b36c76635f18 100644 --- a/include/linux/sctp.h +++ b/include/linux/sctp.h @@ -110,6 +110,7 @@ enum sctp_cid { /* Use hex, as defined in ADDIP sec. 3.1 */ SCTP_CID_ASCONF = 0xC1, + SCTP_CID_I_FWD_TSN = 0xC2, SCTP_CID_ASCONF_ACK = 0x80, SCTP_CID_RECONF = 0x82, }; /* enum */ @@ -616,6 +617,22 @@ struct sctp_fwdtsn_chunk { struct sctp_fwdtsn_hdr fwdtsn_hdr; }; +struct sctp_ifwdtsn_skip { + __be16 stream; + __u8 reserved; + __u8 flags; + __be32 mid; +}; + +struct sctp_ifwdtsn_hdr { + __be32 new_cum_tsn; + struct sctp_ifwdtsn_skip skip[0]; +}; + +struct sctp_ifwdtsn_chunk { + struct sctp_chunkhdr chunk_hdr; + struct sctp_ifwdtsn_hdr fwdtsn_hdr; +}; /* ADDIP * Section 3.1.1 Address Configuration Change Chunk (ASCONF) |