dropbear: tcp-accept.c annotate

annotate tcp-accept.c @ 1715:3974f087d9c0

Disallow leading lines before the ident for server (#102) Per RFC4253 4.2 clients must be able to process other lines of data before the version string, server behavior is not defined neither with MUST/SHOULD nor with MAY. If server process up to 50 lines too - it may cause too long hanging session with invalid/evil client that consume host resources and potentially may lead to DDoS on poor embedded boxes. Let's require first line from client to be version string and fail early if it's not - matches both RFC and real OpenSSH behavior.

author	Vladislav Grishenko <themiron@users.noreply.github.com>
date	Mon, 15 Jun 2020 18:22:18 +0500
parents	572a7aefa188
children	1d86a58fb52d

rev	line source
74 e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	1 /*
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	2 * Dropbear SSH
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	3 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	4 * Copyright (c) 2002,2003 Matt Johnston
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	5 * All rights reserved.
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	6 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	7 * Permission is hereby granted, free of charge, to any person obtaining a copy
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	8 * of this software and associated documentation files (the "Software"), to deal
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	9 * in the Software without restriction, including without limitation the rights
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	11 * copies of the Software, and to permit persons to whom the Software is
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	12 * furnished to do so, subject to the following conditions:
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	13 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	14 * The above copyright notice and this permission notice shall be included in
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	15 * all copies or substantial portions of the Software.
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	16 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	23 * SOFTWARE. */
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 65 diff changeset	24
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 #include "includes.h"
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 #include "ssh.h"
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	27 #include "tcpfwd.h"
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 #include "dbutil.h"
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 #include "session.h"
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 #include "buffer.h"
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 #include "packet.h"
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 #include "listener.h"
941 5daedffd0769 Set tcp priority as follows: Matt Johnston <matt@ucc.asn.au> parents: 675 diff changeset	33 #include "listener.h"
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 #include "runopts.h"
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1237 diff changeset	36 #if DROPBEAR_TCP_ACCEPT
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	37
1460 58a74cb829b8 Pointer parameter could be declared as pointing to const (callback) Francois Perrad <francois.perrad@gadz.org> parents: 1403 diff changeset	38 static void cleanup_tcp(const struct Listener *listener) {
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	39
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	40 struct TCPListener tcpinfo = (struct TCPListener)(listener->typedata);
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	41
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	42 m_free(tcpinfo->sendaddr);
258 306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local Matt Johnston <matt@ucc.asn.au> parents: 165 diff changeset	43 m_free(tcpinfo->listenaddr);
675 dfdb9d9189ff Server shouldn't return "localhost" in response to -R forward connections Matt Johnston <matt@ucc.asn.au> parents: 632 diff changeset	44 m_free(tcpinfo->request_listenaddr);
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	45 m_free(tcpinfo);
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	46 }
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	47
941 5daedffd0769 Set tcp priority as follows: Matt Johnston <matt@ucc.asn.au> parents: 675 diff changeset	48 int tcp_prio_inithandler(struct Channel* channel)
5daedffd0769 Set tcp priority as follows: Matt Johnston <matt@ucc.asn.au> parents: 675 diff changeset	49 {
5daedffd0769 Set tcp priority as follows: Matt Johnston <matt@ucc.asn.au> parents: 675 diff changeset	50 TRACE(("tcp_prio_inithandler channel %d", channel->index))
5daedffd0769 Set tcp priority as follows: Matt Johnston <matt@ucc.asn.au> parents: 675 diff changeset	51 channel->prio = DROPBEAR_CHANNEL_PRIO_UNKNOWABLE;
5daedffd0769 Set tcp priority as follows: Matt Johnston <matt@ucc.asn.au> parents: 675 diff changeset	52 return 0;
5daedffd0769 Set tcp priority as follows: Matt Johnston <matt@ucc.asn.au> parents: 675 diff changeset	53 }
5daedffd0769 Set tcp priority as follows: Matt Johnston <matt@ucc.asn.au> parents: 675 diff changeset	54
1460 58a74cb829b8 Pointer parameter could be declared as pointing to const (callback) Francois Perrad <francois.perrad@gadz.org> parents: 1403 diff changeset	55 static void tcp_acceptor(const struct Listener *listener, int sock) {
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57 int fd;
1403 ae6887d9ab46 rename hidden variable Francois Perrad <francois.perrad@gadz.org> parents: 1295 diff changeset	58 struct sockaddr_storage sa;
276 3cea9d789cca Stomp on some minor warnings Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	59 socklen_t len;
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 char ipstring[NI_MAXHOST], portstring[NI_MAXSERV];
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61 struct TCPListener tcpinfo = (struct TCPListener)(listener->typedata);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62
1403 ae6887d9ab46 rename hidden variable Francois Perrad <francois.perrad@gadz.org> parents: 1295 diff changeset	63 len = sizeof(sa);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64
1403 ae6887d9ab46 rename hidden variable Francois Perrad <francois.perrad@gadz.org> parents: 1295 diff changeset	65 fd = accept(sock, (struct sockaddr*)&sa, &len);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 if (fd < 0) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 return;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69
1403 ae6887d9ab46 rename hidden variable Francois Perrad <francois.perrad@gadz.org> parents: 1295 diff changeset	70 if (getnameinfo((struct sockaddr*)&sa, len, ipstring, sizeof(ipstring),
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 portstring, sizeof(portstring),
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72 NI_NUMERICHOST \| NI_NUMERICSERV) != 0) {
621 d2daeb015138 Clean up leaked FD if getnameinfo fails. From Klocwork Matt Johnston <matt@ucc.asn.au> parents: 577 diff changeset	73 m_close(fd);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 return;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 if (send_msg_channel_open_init(fd, tcpinfo->chantype) == DROPBEAR_SUCCESS) {
1109 2c646a65a1e3 Turn addr local variable into char * Gaël PORTAY <gael.portay@gmail.com> parents: 1094 diff changeset	78 char* addr = NULL;
259 c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	79 unsigned int port = 0;
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80
259 c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	81 if (tcpinfo->tcp_type == direct) {
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	82 /* "direct-tcpip" */
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	83 /* host to connect, port to connect */
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	84 addr = tcpinfo->sendaddr;
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	85 port = tcpinfo->sendport;
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	86 } else {
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	87 dropbear_assert(tcpinfo->tcp_type == forwarded);
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	88 /* "forwarded-tcpip" */
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	89 /* address that was connected, port that was connected */
675 dfdb9d9189ff Server shouldn't return "localhost" in response to -R forward connections Matt Johnston <matt@ucc.asn.au> parents: 632 diff changeset	90 addr = tcpinfo->request_listenaddr;
259 c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	91 port = tcpinfo->listenport;
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	92 }
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	93
632 abf040aedd44 Fix crash with -R forwarding Matt Johnston <matt@ucc.asn.au> parents: 621 diff changeset	94 if (addr == NULL) {
abf040aedd44 Fix crash with -R forwarding Matt Johnston <matt@ucc.asn.au> parents: 621 diff changeset	95 addr = "localhost";
abf040aedd44 Fix crash with -R forwarding Matt Johnston <matt@ucc.asn.au> parents: 621 diff changeset	96 }
1123 d7b752525b91 buf_getstring and buf_putstring now use non-unsigned char* Matt Johnston <matt@ucc.asn.au> parents: 1109 diff changeset	97 buf_putstring(ses.writepayload, addr, strlen(addr));
259 c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	98 buf_putint(ses.writepayload, port);
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	99
c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	100 /* originator ip */
1123 d7b752525b91 buf_getstring and buf_putstring now use non-unsigned char* Matt Johnston <matt@ucc.asn.au> parents: 1109 diff changeset	101 buf_putstring(ses.writepayload, ipstring, strlen(ipstring));
259 c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	102 /* originator port */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103 buf_putint(ses.writepayload, atol(portstring));
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	104
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105 encrypt_packet();
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107 } else {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 /* XXX debug? */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109 close(fd);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112
1620 572a7aefa188 FIx remote forward listeners Matt Johnston <matt@ucc.asn.au> parents: 1460 diff changeset	113 int listen_tcpfwd(struct TCPListener* tcpinfo, struct Listener **ret_listener) {
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	115 char portstring[NI_MAXSERV];
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 int socks[DROPBEAR_MAX_SOCKS];
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117 int nsocks;
1620 572a7aefa188 FIx remote forward listeners Matt Johnston <matt@ucc.asn.au> parents: 1460 diff changeset	118 struct Listener *listener;
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	119 char* errstring = NULL;
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 74 diff changeset	121 TRACE(("enter listen_tcpfwd"))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	122
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123 /* first we try to bind, so don't need to do so much cleanup on failure */
1237 888e3d17e962 Fix print format specifier Chocobo1 <Chocobo1@users.noreply.github.com> parents: 1123 diff changeset	124 snprintf(portstring, sizeof(portstring), "%u", tcpinfo->listenport);
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	125
577 69e98c45db7c - Progress for allowing specifying a listenaddr for tcp forwards Matt Johnston <matt@ucc.asn.au> parents: 433 diff changeset	126 nsocks = dropbear_listen(tcpinfo->listenaddr, portstring, socks,
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	127 DROPBEAR_MAX_SOCKS, &errstring, &ses.maxfd);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 if (nsocks < 0) {
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	129 dropbear_log(LOG_INFO, "TCP forward failed: %s", errstring);
dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	130 m_free(errstring);
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 74 diff changeset	131 TRACE(("leave listen_tcpfwd: dropbear_listen failed"))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 return DROPBEAR_FAILURE;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 }
371 6aea2cfc113e Fix memory leak found by Klocwork Matt Johnston <matt@ucc.asn.au> parents: 276 diff changeset	134 m_free(errstring);
6aea2cfc113e Fix memory leak found by Klocwork Matt Johnston <matt@ucc.asn.au> parents: 276 diff changeset	135
6aea2cfc113e Fix memory leak found by Klocwork Matt Johnston <matt@ucc.asn.au> parents: 276 diff changeset	136 /* new_listener will close the socks if it fails */
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 listener = new_listener(socks, nsocks, CHANNEL_ID_TCPFORWARDED, tcpinfo,
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	138 tcp_acceptor, cleanup_tcp);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 if (listener == NULL) {
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 74 diff changeset	141 TRACE(("leave listen_tcpfwd: listener failed"))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 return DROPBEAR_FAILURE;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144
1620 572a7aefa188 FIx remote forward listeners Matt Johnston <matt@ucc.asn.au> parents: 1460 diff changeset	145 if (ret_listener) {
572a7aefa188 FIx remote forward listeners Matt Johnston <matt@ucc.asn.au> parents: 1460 diff changeset	146 *ret_listener = listener;
572a7aefa188 FIx remote forward listeners Matt Johnston <matt@ucc.asn.au> parents: 1460 diff changeset	147 }
572a7aefa188 FIx remote forward listeners Matt Johnston <matt@ucc.asn.au> parents: 1460 diff changeset	148
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 74 diff changeset	149 TRACE(("leave listen_tcpfwd: success"))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150 return DROPBEAR_SUCCESS;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151 }
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152
65 02e4a7f614f8 Oops, forgot to call the actual code. Matt Johnston <matt@ucc.asn.au> parents: 64 diff changeset	153 #endif /* DROPBEAR_TCP_ACCEPT */

Mercurial > dropbear

annotate tcp-accept.c @ 1715:3974f087d9c0