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sctp: add sockopt SCTP_ENABLE_STREAM_RESET

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This patch is to add sockopt SCTP_ENABLE_STREAM_RESET to get/set
strreset_enable to indicate which reconf request type it supports,
which is described in rfc6525 section 6.3.1.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long
2017-01-18 00:44:46 +08:00
committed by David S. Miller
parent c28445c3cb
commit 9fb657aec0
4 changed files with 96 additions and 0 deletions
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7
include/uapi/linux/sctp.h
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@@ -115,6 +115,7 @@ typedef __s32 sctp_assoc_t;
#define SCTP_PR_SUPPORTED 113
#define SCTP_DEFAULT_PRINFO 114
#define SCTP_PR_ASSOC_STATUS 115
#define SCTP_ENABLE_STREAM_RESET 118
/* PR-SCTP policies */
#define SCTP_PR_SCTP_NONE 0x0000
@@ -138,6 +139,12 @@ typedef __s32 sctp_assoc_t;
#define SCTP_PR_RTX_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_RTX)
#define SCTP_PR_PRIO_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_PRIO)
/* For enable stream reset */
#define SCTP_ENABLE_RESET_STREAM_REQ 0x01
#define SCTP_ENABLE_RESET_ASSOC_REQ 0x02
#define SCTP_ENABLE_CHANGE_ASSOC_REQ 0x04
#define SCTP_ENABLE_STRRESET_MASK 0x07
/* These are bit fields for msghdr->msg_flags. See section 5.1. */
/* On user space Linux, these live in <bits/socket.h> as an enum. */
enum sctp_msg_flags {