From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xin Long Date: Sat, 09 Jul 2016 11:47:39 +0000 Subject: [PATCH net-next 0/6] sctp: implement rfc7496 in sctp Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: network dev , linux-sctp@vger.kernel.org Cc: Marcelo Ricardo Leitner , Vlad Yasevich , daniel@iogearbox.net, davem@davemloft.net This patchset implements "Additional Policies for the Partially Reliable Stream Control Transmission Protocol Extension" described on RFC7496. The Partially Reliable SCTP (PR-SCTP) extension defined in [RFC3758] provides a generic method for senders to abandon user messages. The decision to abandon a user message is sender side only, and the exact condition is called a "PR-SCTP policy". This patchset implements 3 policies: 1. Timed Reliability: This allows the sender to specify a timeout for a user message after which the SCTP stack abandons the user message. 2. Limited Retransmission Policy: Allows limitation of the number of retransmissions. 3. Priority Policy: Allows removal of lower-priority messages if space for higher-priority messages is needed in the send buffer. Patch 1-3 add some sockopts in sctp to set/get pr_sctp policy status. Patch 4-6 implement these 3 policies one by one. Xin Long (6): sctp: add SCTP_PR_SUPPORTED on sctp sockopt sctp: add SCTP_DEFAULT_PRINFO into sctp sockopt sctp: add SCTP_PR_ASSOC_STATUS on sctp sockopt sctp: implement prsctp TTL policy sctp: implement prsctp RTX policy sctp: implement prsctp PRIO policy include/net/sctp/structs.h | 23 ++++- include/uapi/linux/sctp.h | 42 ++++++++ net/sctp/associola.c | 1 + net/sctp/chunk.c | 25 ++++- net/sctp/endpointola.c | 1 + net/sctp/output.c | 2 + net/sctp/outqueue.c | 99 +++++++++++++++++++ net/sctp/sm_make_chunk.c | 27 +++-- net/sctp/socket.c | 240 ++++++++++++++++++++++++++++++++++++++++++++- 9 files changed, 447 insertions(+), 13 deletions(-) -- 2.1.0