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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-08-09 14:02:09 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-09-21 10:29:38 +0200 |
| commit | bb80d9df8bac71eedee1a6787ca63aef972a7e48 (patch) | |
| tree | 1b5cb9443c5ead5706c35afb618abbbd1592315e /freebsd/sys/netinet/sctp_usrreq.c | |
| parent | Update to FreeBSD head 2017-10-01 (diff) | |
| download | rtems-libbsd-bb80d9df8bac71eedee1a6787ca63aef972a7e48.tar.bz2 | |
Update to FreeBSD head 2017-12-01
Git mirror commit e724f51f811a4b2bd29447f8b85ab5c2f9b88266.
Update #3472.
Diffstat (limited to 'freebsd/sys/netinet/sctp_usrreq.c')
| -rw-r--r-- | freebsd/sys/netinet/sctp_usrreq.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/freebsd/sys/netinet/sctp_usrreq.c b/freebsd/sys/netinet/sctp_usrreq.c index 6ab04456..05ddee01 100644 --- a/freebsd/sys/netinet/sctp_usrreq.c +++ b/freebsd/sys/netinet/sctp_usrreq.c @@ -1,6 +1,8 @@ #include <machine/rtems-bsd-kernel-space.h> /*- + * SPDX-License-Identifier: BSD-3-Clause + * * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. @@ -204,6 +206,10 @@ sctp_notify(struct sctp_inpcb *inp, #endif /* no need to unlock here, since the TCB is gone */ } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) { + if ((net->dest_state & SCTP_ADDR_NO_PMTUD) == 0) { + SCTP_TCB_UNLOCK(stcb); + return; + } /* Find the next (smaller) MTU */ if (next_mtu == 0) { /* @@ -2414,7 +2420,7 @@ flags_out: #endif #ifdef INET6 case AF_INET6: - paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD; + paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD; break; #endif default: @@ -2449,7 +2455,7 @@ flags_out: * value */ paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; - paddrp->spp_pathmtu = 0; + paddrp->spp_pathmtu = stcb->asoc.default_mtu; if (stcb->asoc.default_dscp & 0x01) { paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc; paddrp->spp_flags |= SPP_DSCP; @@ -2496,8 +2502,7 @@ flags_out: paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; } #endif - /* can't return this */ - paddrp->spp_pathmtu = 0; + paddrp->spp_pathmtu = inp->sctp_ep.default_mtu; if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { paddrp->spp_flags |= SPP_HB_ENABLE; @@ -5481,6 +5486,7 @@ sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, sctp_pathmtu_adjustment(stcb, net->mtu); } } + stcb->asoc.default_mtu = paddrp->spp_pathmtu; sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD); } if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { @@ -5490,6 +5496,7 @@ sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, } net->dest_state &= ~SCTP_ADDR_NO_PMTUD; } + stcb->asoc.default_mtu = 0; sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD); } if (paddrp->spp_flags & SPP_DSCP) { @@ -5546,8 +5553,12 @@ sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); } if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { + inp->sctp_ep.default_mtu = 0; sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD); } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) { + if (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU) { + inp->sctp_ep.default_mtu = paddrp->spp_pathmtu; + } sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD); } if (paddrp->spp_flags & SPP_DSCP) { |