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Don't set the DF-bit on timer based retransmissions.

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MFC after:	1 week
This commit is contained in:
tuexen 2017-04-29 09:57:27 +00:00
parent 51f1e9ef28
commit 23c816e1ed
1 changed files with 8 additions and 0 deletions
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8
sys/netinet/sctp_timer.c
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@ -667,6 +667,7 @@ start_again:
stcb->asoc.peers_rwnd += SCTP_BASE_SYSCTL(sctp_peer_chunk_oh);
}
chk->sent = SCTP_DATAGRAM_RESEND;
chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
SCTP_STAT_INCR(sctps_markedretrans);
/* reset the TSN for striking and other FR stuff */
@ -740,6 +741,7 @@ start_again:
chk->whoTo = alt;
if (chk->sent != SCTP_DATAGRAM_RESEND) {
chk->sent = SCTP_DATAGRAM_RESEND;
chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
cnt_mk++;
}
@ -1084,6 +1086,7 @@ sctp_cookie_timer(struct sctp_inpcb *inp,
sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
}
cookie->sent = SCTP_DATAGRAM_RESEND;
cookie->flags |= CHUNK_FLAGS_FRAGMENT_OK;
/*
* Now call the output routine to kick out the cookie again, Note we
* don't mark any chunks for retran so that FR will need to kick in
@ -1130,6 +1133,7 @@ sctp_strreset_timer(struct sctp_inpcb *inp, struct sctp_tcb *stcb,
sctp_free_remote_addr(chk->whoTo);
if (chk->sent != SCTP_DATAGRAM_RESEND) {
chk->sent = SCTP_DATAGRAM_RESEND;
chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
}
chk->whoTo = alt;
@ -1147,6 +1151,7 @@ sctp_strreset_timer(struct sctp_inpcb *inp, struct sctp_tcb *stcb,
if (strrst->sent != SCTP_DATAGRAM_RESEND)
sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
strrst->sent = SCTP_DATAGRAM_RESEND;
strrst->flags |= CHUNK_FLAGS_FRAGMENT_OK;
/* restart the timer */
sctp_timer_start(SCTP_TIMER_TYPE_STRRESET, inp, stcb, strrst->whoTo);
@ -1211,6 +1216,7 @@ sctp_asconf_timer(struct sctp_inpcb *inp, struct sctp_tcb *stcb,
chk->whoTo = alt;
if (chk->sent != SCTP_DATAGRAM_RESEND) {
chk->sent = SCTP_DATAGRAM_RESEND;
chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
}
atomic_add_int(&alt->ref_count, 1);
@ -1225,6 +1231,7 @@ sctp_asconf_timer(struct sctp_inpcb *inp, struct sctp_tcb *stcb,
if (asconf->sent != SCTP_DATAGRAM_RESEND && chk->sent != SCTP_DATAGRAM_UNSENT)
sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
chk->sent = SCTP_DATAGRAM_RESEND;
chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
}
if (!(net->dest_state & SCTP_ADDR_REACHABLE)) {
/*
@ -1237,6 +1244,7 @@ sctp_asconf_timer(struct sctp_inpcb *inp, struct sctp_tcb *stcb,
if (asconf->sent != SCTP_DATAGRAM_RESEND)
sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
asconf->sent = SCTP_DATAGRAM_RESEND;
asconf->flags |= CHUNK_FLAGS_FRAGMENT_OK;
/* send another ASCONF if any and we can do */
sctp_send_asconf(stcb, alt, SCTP_ADDR_NOT_LOCKED);