[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>
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David S. Miller
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ad8fec1720
@ -560,9 +560,18 @@ struct sctp_paddrinfo {
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} __attribute__((packed, aligned(4)));
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/* Peer addresses's state. */
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/* UNKNOWN: Peer address passed by the upper layer in sendmsg or connect[x]
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* calls.
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* UNCONFIRMED: Peer address received in INIT/INIT-ACK address parameters.
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* Not yet confirmed by a heartbeat and not available for data
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* transfers.
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* ACTIVE : Peer address confirmed, active and available for data transfers.
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* INACTIVE: Peer address inactive and not available for data transfers.
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*/
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enum sctp_spinfo_state {
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SCTP_INACTIVE,
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SCTP_ACTIVE,
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SCTP_UNCONFIRMED,
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SCTP_UNKNOWN = 0xffff /* Value used for transport state unknown */
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};
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