From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Yongjun Date: Fri, 04 Sep 2009 06:36:55 +0000 Subject: [PATCH 1/3] sctp: implement definition for SACK-IMMEDIATELY extension Message-Id: <4AA0B587.6000508@cn.fujitsu.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sctp@vger.kernel.org This patch implement the definition for SACK-IMMEDIATELY extension. Section 3. The I-bit in the DATA Chunk Header The following Figure 1 shows the extended DATA chunk. 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Type = 0 | Res |I|U|B|E| Length | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | TSN | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Stream Identifier | Stream Sequence Number | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Payload Protocol Identifier | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ \ \ / User Data / \ \ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Figure 1 The only difference between the DATA chunk in Figure 1 and the DATA chunk defined in [RFC4960] is the addition of the I-bit in the flags field of the chunk header. Signed-off-by: Wei Yongjun --- include/linux/sctp.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/include/linux/sctp.h b/include/linux/sctp.h index b464b9d..c20d3ce 100644 --- a/include/linux/sctp.h +++ b/include/linux/sctp.h @@ -242,6 +242,7 @@ enum { SCTP_DATA_FIRST_FRAG = 0x02, SCTP_DATA_NOT_FRAG = 0x03, SCTP_DATA_UNORDERED = 0x04, + SCTP_DATA_SACK_IMM = 0x08, }; enum { SCTP_DATA_FRAG_MASK = 0x03, }; -- 1.6.2.2