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sctp: implement sender-side procedures for SSN Reset Request Parameter

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This patch is to implement sender-side procedures for the Outgoing
and Incoming SSN Reset Request Parameter described in rfc6525 section
5.1.2 and 5.1.3.

It is also add sockopt SCTP_RESET_STREAMS in rfc6525 section 6.3.2
for users.

Note that the new asoc member strreset_outstanding is to make sure
only one reconf request chunk on the fly as rfc6525 section 5.1.1
demands.

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 00:44:47 +08:00
committed by David S. Miller
parent 9fb657aec0
commit 7f9d68ac94
6 changed files with 149 additions and 10 deletions
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include/net/sctp/structs.h
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@@ -1875,6 +1875,7 @@ struct sctp_association {
reconf_enable:1;
__u8 strreset_enable;
__u8 strreset_outstanding; /* request param count on the fly */
__u32 strreset_outseq; /* Update after receiving response */
__u32 strreset_inseq; /* Update after receiving request */