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| author | Sridhar Samudrala <sri@us.ibm.com> | 2006-07-21 14:48:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-07-21 14:48:50 -0700 |
| commit | ad8fec1720e000ba2384de6408076a60fc92a981 (patch) | |
| tree | 52fd2f7af583b95db6db369c6b3ea3d6adc26d69 /include/net | |
| parent | cfdeef3282705a4b872d3559c4e7d2561251363c (diff) | |
| download | linux-ad8fec1720e000ba2384de6408076a60fc92a981.tar.gz linux-ad8fec1720e000ba2384de6408076a60fc92a981.tar.bz2 linux-ad8fec1720e000ba2384de6408076a60fc92a981.zip | |
[SCTP]: Verify all the paths to a peer via heartbeat before using them.
This patch implements Path Initialization procedure as described in
Sec 2.36 of RFC4460.
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/sctp/structs.h | 4 | ||||
| -rw-r--r-- | include/net/sctp/user.h | 9 |
2 files changed, 13 insertions, 0 deletions
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 5f69158c1006..268f2e19ccbb 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -445,6 +445,7 @@ typedef struct sctp_sender_hb_info { struct sctp_paramhdr param_hdr; union sctp_addr daddr; unsigned long sent_at; + __u64 hb_nonce; } __attribute__((packed)) sctp_sender_hb_info_t; /* @@ -984,6 +985,9 @@ struct sctp_transport { */ char cacc_saw_newack; } cacc; + + /* 64-bit random number sent with heartbeat. */ + __u64 hb_nonce; }; struct sctp_transport *sctp_transport_new(const union sctp_addr *, diff --git a/include/net/sctp/user.h b/include/net/sctp/user.h index 8a6bef6f91eb..1b7aae6cdd82 100644 --- a/include/net/sctp/user.h +++ b/include/net/sctp/user.h @@ -560,9 +560,18 @@ struct sctp_paddrinfo { } __attribute__((packed, aligned(4))); /* Peer addresses's state. */ +/* UNKNOWN: Peer address passed by the upper layer in sendmsg or connect[x] + * calls. + * UNCONFIRMED: Peer address received in INIT/INIT-ACK address parameters. + * Not yet confirmed by a heartbeat and not available for data + * transfers. + * ACTIVE : Peer address confirmed, active and available for data transfers. + * INACTIVE: Peer address inactive and not available for data transfers. + */ enum sctp_spinfo_state { SCTP_INACTIVE, SCTP_ACTIVE, + SCTP_UNCONFIRMED, SCTP_UNKNOWN = 0xffff /* Value used for transport state unknown */ }; |