diff options
| author | Andy Fiddaman <omnios@citrus-it.co.uk> | 2020-09-18 20:04:57 +0000 |
|---|---|---|
| committer | Andy Fiddaman <omnios@citrus-it.co.uk> | 2020-10-01 21:28:00 +0000 |
| commit | 221e47fb90c5fcfe7add9a33f6c915ee5253ece9 (patch) | |
| tree | 60e93bedd2ab40a0a233be2fee878e7ff4186432 /usr/src/uts/common/inet/tcp/tcp_input.c | |
| parent | c3e16711de8a1209bb0e4ad2a003d0b443426f17 (diff) | |
| download | illumos-joyent-221e47fb90c5fcfe7add9a33f6c915ee5253ece9.tar.gz | |
13175 Add support for IP_RECVTOS
13182 CMSG_ macros should have man pages
Reviewed by: Dan McDonald <danmcd@joyent.com>
Reviewed by: Robert Mustacchi <rm@fingolfin.org>
Approved by: Robert Mustacchi <rm@fingolfin.org>
Diffstat (limited to 'usr/src/uts/common/inet/tcp/tcp_input.c')
| -rw-r--r-- | usr/src/uts/common/inet/tcp/tcp_input.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/usr/src/uts/common/inet/tcp/tcp_input.c b/usr/src/uts/common/inet/tcp/tcp_input.c index 490308f60e..b3e4a07303 100644 --- a/usr/src/uts/common/inet/tcp/tcp_input.c +++ b/usr/src/uts/common/inet/tcp/tcp_input.c @@ -24,6 +24,7 @@ * Copyright 2011 Nexenta Systems, Inc. All rights reserved. * Copyright 2019 Joyent, Inc. * Copyright (c) 2014, 2016 by Delphix. All rights reserved. + * Copyright 2020 OmniOS Community Edition (OmniOSce) Association. */ /* This file contains all TCP input processing functions. */ @@ -5108,6 +5109,15 @@ tcp_input_add_ancillary(tcp_t *tcp, mblk_t *mp, ip_pkt_t *ipp, optlen = 0; addflag.crb_all = 0; + + /* If app asked for TOS and it has changed ... */ + if (connp->conn_recv_ancillary.crb_recvtos && + ipp->ipp_type_of_service != tcp->tcp_recvtos && + (ira->ira_flags & IRAF_IS_IPV4)) { + optlen += sizeof (struct T_opthdr) + + P2ROUNDUP(sizeof (uint8_t), __TPI_ALIGN_SIZE); + addflag.crb_recvtos = 1; + } /* If app asked for pktinfo and the index has changed ... */ if (connp->conn_recv_ancillary.crb_ip_recvpktinfo && ira->ira_ruifindex != tcp->tcp_recvifindex) { @@ -5127,8 +5137,9 @@ tcp_input_add_ancillary(tcp_t *tcp, mblk_t *mp, ip_pkt_t *ipp, optlen += sizeof (struct T_opthdr) + sizeof (uint_t); addflag.crb_ipv6_recvtclass = 1; } + /* - * If app asked for hopbyhop headers and it has changed ... + * If app asked for hop-by-hop headers and it has changed ... * For security labels, note that (1) security labels can't change on * a connected socket at all, (2) we're connected to at most one peer, * (3) if anything changes, then it must be some other extra option. @@ -5206,6 +5217,23 @@ tcp_input_add_ancillary(tcp_t *tcp, mblk_t *mp, ip_pkt_t *ipp, todi->OPT_length = optlen; todi->OPT_offset = sizeof (*todi); optptr = (uchar_t *)&todi[1]; + + /* If app asked for TOS and it has changed ... */ + if (addflag.crb_recvtos) { + toh = (struct T_opthdr *)optptr; + toh->level = IPPROTO_IP; + toh->name = IP_RECVTOS; + toh->len = sizeof (*toh) + + P2ROUNDUP(sizeof (uint8_t), __TPI_ALIGN_SIZE); + toh->status = 0; + optptr += sizeof (*toh); + *(uint8_t *)optptr = ipp->ipp_type_of_service; + optptr = (uchar_t *)toh + toh->len; + ASSERT(__TPI_TOPT_ISALIGNED(optptr)); + /* Save as "last" value */ + tcp->tcp_recvtos = ipp->ipp_type_of_service; + } + /* * If app asked for pktinfo and the index has changed ... * Note that the local address never changes for the connection. |