Author: tuexen
Date: Sat Apr 29 09:57:27 2017
New Revision: 317592
URL: https://svnweb.freebsd.org/changeset/base/317592
Log:
Don't set the DF-bit on timer based retransmissions.
MFC after: 1 week
Modified:
head/sys/netinet/sctp_timer.c
Modified: head/sys/netinet/sctp_timer.c
==============================================================================
--- head/sys/netinet/sctp_timer.c Sat Apr 29 09:47:15 2017
(r317591)
+++ head/sys/netinet/sctp_timer.c Sat Apr 29 09:57:27 2017
(r317592)
@@ -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 *i
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 *i
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
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
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
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);
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