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sctp: add reconf_enable in asoc ep and netns

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This patch is to add reconf_enable field in all of asoc ep and netns
to indicate if they support stream reset.

When initializing, asoc reconf_enable get the default value from ep
reconf_enable which is from netns netns reconf_enable by default.

It is also to add reconf_capable in asoc peer part to know if peer
supports reconf_enable, the value is set if ext params have reconf
chunk support when processing init chunk, just 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 00:44:45 +08:00 • committed by David S. Miller
parent 7a090b0452
commit c28445c3cb
6 changed files with 28 additions and 2 deletions
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7
include/net/sctp/structs.h
View file

@ -1255,7 +1255,8 @@ struct sctp_endpoint {
struct list_head endpoint_shared_keys;
__u16 active_key_id;
__u8 auth_enable:1,
prsctp_enable:1;
prsctp_enable:1,
reconf_enable:1;
};
/* Recover the outter endpoint structure. */
@ -1508,6 +1509,7 @@ struct sctp_association {
hostname_address:1, /* Peer understands DNS addresses? */
asconf_capable:1, /* Does peer support ADDIP? */
prsctp_capable:1, /* Can peer do PR-SCTP? */
reconf_capable:1, /* Can peer do RE-CONFIG? */
auth_capable:1; /* Is peer doing SCTP-AUTH? */
/* sack_needed : This flag indicates if the next received
@ -1867,7 +1869,8 @@ struct sctp_association {
__u8 need_ecne:1, /* Need to send an ECNE Chunk? */
temp:1, /* Is it a temporary association? */
prsctp_enable:1;
prsctp_enable:1,
reconf_enable:1;
__u32 strreset_outseq; /* Update after receiving response */
__u32 strreset_inseq; /* Update after receiving request */