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sctp: add SCTP_PR_SUPPORTED on sctp sockopt

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According to section 4.5 of rfc7496, prsctp_enable should be per asoc.
We will add prsctp_enable to both asoc and ep, and replace the places
where it used net.sctp->prsctp_enable with asoc->prsctp_enable.

ep->prsctp_enable will be initialized with net.sctp->prsctp_enable, and
asoc->prsctp_enable will be initialized with ep->prsctp_enable. We can
also modify it's value through sockopt SCTP_PR_SUPPORTED.

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
2016-07-09 19:47:40 +08:00
committed by David S. Miller
parent bac65c4b39
commit 28aa4c26fc
6 changed files with 93 additions and 8 deletions
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6
include/net/sctp/structs.h
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@@ -1256,7 +1256,8 @@ struct sctp_endpoint {
/* SCTP-AUTH: endpoint shared keys */
struct list_head endpoint_shared_keys;
__u16 active_key_id;
__u8 auth_enable;
__u8 auth_enable:1,
prsctp_enable:1;
};
/* Recover the outter endpoint structure. */
@@ -1848,7 +1849,8 @@ struct sctp_association {
__u16 active_key_id;
__u8 need_ecne:1, /* Need to send an ECNE Chunk? */
temp:1; /* Is it a temporary association? */
temp:1, /* Is it a temporary association? */
prsctp_enable:1;
struct sctp_priv_assoc_stats stats;
};