sctp: implement prsctp TTL policy
prsctp TTL policy is a policy to abandon chunks when they expire at the specific time in local stack. It's similar with expires_at in struct sctp_datamsg. This patch uses sinfo->sinfo_timetolive to set the specific time for TTL policy. sinfo->sinfo_timetolive is also used for msg->expires_at. So if prsctp_enable or TTL policy is not enabled, msg->expires_at still works as before. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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committed by
David S. Miller

parent
826d253d57
commit
a6c2f79287
@@ -316,6 +316,8 @@ static sctp_xmit_t __sctp_packet_append_chunk(struct sctp_packet *packet,
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packet->has_data = 1;
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/* timestamp the chunk for rtx purposes */
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chunk->sent_at = jiffies;
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/* Mainly used for prsctp RTX policy */
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chunk->sent_count++;
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break;
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case SCTP_CID_COOKIE_ECHO:
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packet->has_cookie_echo = 1;
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