dropbear: cli-tcpfwd.c annotate

annotate cli-tcpfwd.c @ 1747:ff51d5967e2d

Avoid passing NULL to memcpy

author	Matt Johnston <matt@ucc.asn.au>
date	Mon, 19 Oct 2020 21:38:20 +0800
parents	79eef94ccea9
children	9026f976eee8

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: 70 diff changeset	1 /*
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 70 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: 70 diff changeset	3 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 70 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: 70 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: 70 diff changeset	6 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 70 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: 70 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: 70 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: 70 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: 70 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: 70 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: 70 diff changeset	13 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 70 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: 70 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: 70 diff changeset	16 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files Matt Johnston <matt@ucc.asn.au> parents: 70 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: 70 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: 70 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: 70 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: 70 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: 70 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: 70 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: 70 diff changeset	24
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 #include "includes.h"
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	26 #include "dbutil.h"
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 "channel.h"
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	29 #include "runopts.h"
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	30 #include "session.h"
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	31 #include "ssh.h"
1032 0da8ba489c23 Move generic network routines to netio.c Matt Johnston <matt@ucc.asn.au> parents: 1025 diff changeset	32 #include "netio.h"
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1275 diff changeset	34 #if DROPBEAR_CLI_REMOTETCPFWD
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	35 static int newtcpforwarded(struct Channel * channel);
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	36
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	37 const struct ChanType cli_chan_tcpremote = {
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	38 1, /* sepfds */
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	39 "forwarded-tcpip",
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	40 newtcpforwarded,
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	41 NULL,
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	42 NULL,
1625 79eef94ccea9 Split ChanType closehandler() and cleanup() so that dbclient doesn't Matt Johnston <matt@ucc.asn.au> parents: 1620 diff changeset	43 NULL,
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	44 NULL
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	45 };
156 8c2b3506f112 Rearrange preprocessor parts so that compilation with various options Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	46 #endif
8c2b3506f112 Rearrange preprocessor parts so that compilation with various options Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	47
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1275 diff changeset	48 #if DROPBEAR_CLI_LOCALTCPFWD
578 44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	49 static int cli_localtcp(const char* listenaddr,
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	50 unsigned int listenport,
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	51 const char* remoteaddr,
156 8c2b3506f112 Rearrange preprocessor parts so that compilation with various options Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	52 unsigned int remoteport);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 static const struct ChanType cli_chan_tcplocal = {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 1, /* sepfds */
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 "direct-tcpip",
941 5daedffd0769 Set tcp priority as follows: Matt Johnston <matt@ucc.asn.au> parents: 899 diff changeset	56 tcp_prio_inithandler,
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57 NULL,
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	58 NULL,
1625 79eef94ccea9 Split ChanType closehandler() and cleanup() so that dbclient doesn't Matt Johnston <matt@ucc.asn.au> parents: 1620 diff changeset	59 NULL,
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 NULL
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61 };
156 8c2b3506f112 Rearrange preprocessor parts so that compilation with various options Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	62 #endif
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1275 diff changeset	64 #if DROPBEAR_CLI_ANYTCPFWD
1206 2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	65 static void fwd_failed(const char* format, ...) ATTRIB_PRINTF(1,2);
1275 d49bda490798 add static in function definition Francois Perrad <francois.perrad@gadz.org> parents: 1251 diff changeset	66 static void fwd_failed(const char* format, ...)
1206 2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	67 {
2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	68 va_list param;
2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	69 va_start(param, format);
2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	70
1215 d058e15ea213 A few minor style fixes Matt Johnston <matt@ucc.asn.au> parents: 1206 diff changeset	71 if (cli_opts.exit_on_fwd_failure) {
1206 2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	72 _dropbear_exit(EXIT_FAILURE, format, param);
1215 d058e15ea213 A few minor style fixes Matt Johnston <matt@ucc.asn.au> parents: 1206 diff changeset	73 } else {
1206 2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	74 _dropbear_log(LOG_WARNING, format, param);
1215 d058e15ea213 A few minor style fixes Matt Johnston <matt@ucc.asn.au> parents: 1206 diff changeset	75 }
1206 2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	76
2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	77 va_end(param);
2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	78 }
2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	79 #endif
2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	80
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1275 diff changeset	81 #if DROPBEAR_CLI_LOCALTCPFWD
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	82 void setup_localtcp() {
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	83 m_list_elem *iter;
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	84 int ret;
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	85
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 156 diff changeset	86 TRACE(("enter setup_localtcp"))
66 38c3146aa23d Some more sanity-checking of args, and just warn and ignore OpenSSH args Matt Johnston <matt@ucc.asn.au> parents: 64 diff changeset	87
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	88 for (iter = cli_opts.localfwds->first; iter; iter = iter->next) {
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	89 struct TCPFwdEntry * fwd = (struct TCPFwdEntry*)iter->item;
578 44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	90 ret = cli_localtcp(
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	91 fwd->listenaddr,
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	92 fwd->listenport,
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	93 fwd->connectaddr,
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	94 fwd->connectport);
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	95 if (ret == DROPBEAR_FAILURE) {
1206 2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	96 fwd_failed("Failed local port forward %s:%d:%s:%d",
578 44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	97 fwd->listenaddr,
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	98 fwd->listenport,
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	99 fwd->connectaddr,
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	100 fwd->connectport);
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	101 }
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	102 }
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 156 diff changeset	103 TRACE(("leave setup_localtcp"))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	105 }
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106
578 44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	107 static int cli_localtcp(const char* listenaddr,
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	108 unsigned int listenport,
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	109 const char* remoteaddr,
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	110 unsigned int remoteport) {
62 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 struct TCPListener* tcpinfo = NULL;
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	113 int ret;
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	114
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	115 TRACE(("enter cli_localtcp: %d %s %d", listenport, remoteaddr,
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	116 remoteport));
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117
184 ca55377e4f7e - allocate correct buffer size for channel info, rather than sizeof(pointer). Matt Johnston <matt@ucc.asn.au> parents: 165 diff changeset	118 tcpinfo = (struct TCPListener*)m_malloc(sizeof(struct TCPListener));
258 306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	119
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 74 diff changeset	120 tcpinfo->sendaddr = m_strdup(remoteaddr);
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	121 tcpinfo->sendport = remoteport;
258 306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	122
578 44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	123 if (listenaddr)
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	124 {
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	125 tcpinfo->listenaddr = m_strdup(listenaddr);
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	126 }
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	127 else
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	128 {
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	129 if (opts.listen_fwd_all) {
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	130 tcpinfo->listenaddr = m_strdup("");
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	131 } else {
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	132 tcpinfo->listenaddr = m_strdup("localhost");
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	133 }
258 306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	134 }
63 dcc43965928f - A nice cleaner structure for tcp (acceptor) forwarding. Matt Johnston <matt@ucc.asn.au> parents: 62 diff changeset	135 tcpinfo->listenport = listenport;
258 306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	136
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 tcpinfo->chantype = &cli_chan_tcplocal;
259 c049490e43fe * fix -L forwarding on the client, broke last rev Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	138 tcpinfo->tcp_type = direct;
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139
1620 572a7aefa188 FIx remote forward listeners Matt Johnston <matt@ucc.asn.au> parents: 1515 diff changeset	140 ret = listen_tcpfwd(tcpinfo, NULL);
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 if (ret == DROPBEAR_FAILURE) {
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143 m_free(tcpinfo);
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 }
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 156 diff changeset	145 TRACE(("leave cli_localtcp: %d", ret))
62 20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146 return ret;
20563735e8b5 just checkpointing Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147 }
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1275 diff changeset	148 #endif /* DROPBEAR_CLI_LOCALTCPFWD */
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	149
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1275 diff changeset	150 #if DROPBEAR_CLI_REMOTETCPFWD
578 44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	151 static void send_msg_global_request_remotetcp(const char *addr, int port) {
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	152
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 156 diff changeset	153 TRACE(("enter send_msg_global_request_remotetcp"))
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	154
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	155 CHECKCLEARTOWRITE();
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	156 buf_putbyte(ses.writepayload, SSH_MSG_GLOBAL_REQUEST);
1123 d7b752525b91 buf_getstring and buf_putstring now use non-unsigned char* Matt Johnston <matt@ucc.asn.au> parents: 1094 diff changeset	157 buf_putstring(ses.writepayload, "tcpip-forward", 13);
505 805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	158 buf_putbyte(ses.writepayload, 1); /* want_reply */
1123 d7b752525b91 buf_getstring and buf_putstring now use non-unsigned char* Matt Johnston <matt@ucc.asn.au> parents: 1094 diff changeset	159 buf_putstring(ses.writepayload, addr, strlen(addr));
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	160 buf_putint(ses.writepayload, port);
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	161
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	162 encrypt_packet();
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	163
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 156 diff changeset	164 TRACE(("leave send_msg_global_request_remotetcp"))
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	165 }
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	166
505 805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	167 /* The only global success/failure messages are for remotetcp.
805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	168 * Since there isn't any identifier in these messages, we have to rely on them
805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	169 * being in the same order as we sent the requests. This is the ordering
631 af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	170 * of the cli_opts.remotefwds list.
af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	171 * If the requested remote port is 0 the listen port will be
af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	172 * dynamically allocated by the server and the port number will be returned
af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	173 * to client and the port number reported to the user. */
505 805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	174 void cli_recv_msg_request_success() {
631 af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	175 /* We just mark off that we have received the reply,
505 805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	176 * so that we can report failure for later ones. */
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	177 m_list_elem * iter = NULL;
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	178 for (iter = cli_opts.remotefwds->first; iter; iter = iter->next) {
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	179 struct TCPFwdEntry fwd = (struct TCPFwdEntry)iter->item;
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	180 if (!fwd->have_reply) {
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	181 fwd->have_reply = 1;
631 af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	182 if (fwd->listenport == 0) {
899 115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	183 /* The server should let us know which port was allocated if we requested port 0 */
631 af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	184 int allocport = buf_getint(ses.payload);
af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	185 if (allocport > 0) {
899 115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	186 fwd->listenport = allocport;
631 af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	187 dropbear_log(LOG_INFO, "Allocated port %d for remote forward to %s:%d",
af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	188 allocport, fwd->connectaddr, fwd->connectport);
af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	189 }
af304deacb4c Print the server allocated port when using dbclient -R 0:.... Matt Johnston <matt@ucc.asn.au> parents: 591 diff changeset	190 }
505 805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	191 return;
805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	192 }
805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	193 }
805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	194 }
805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	195
805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	196 void cli_recv_msg_request_failure() {
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	197 m_list_elem *iter;
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	198 for (iter = cli_opts.remotefwds->first; iter; iter = iter->next) {
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	199 struct TCPFwdEntry fwd = (struct TCPFwdEntry)iter->item;
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	200 if (!fwd->have_reply) {
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	201 fwd->have_reply = 1;
1206 2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	202 fwd_failed("Remote TCP forward request failed (port %d -> %s:%d)",
2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	203 fwd->listenport,
2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	204 fwd->connectaddr,
2907c658fa76 Implemented ExitOnForwardFailure option for local and remote forwarding. Konstantin Tokarev <ktokarev@smartlabs.tv> parents: 1123 diff changeset	205 fwd->connectport);
505 805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	206 return;
805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	207 }
805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	208 }
805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	209 }
805e557fdff7 Report errors if a remote request fails Matt Johnston <matt@ucc.asn.au> parents: 259 diff changeset	210
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	211 void setup_remotetcp() {
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	212 m_list_elem *iter;
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 156 diff changeset	213 TRACE(("enter setup_remotetcp"))
66 38c3146aa23d Some more sanity-checking of args, and just warn and ignore OpenSSH args Matt Johnston <matt@ucc.asn.au> parents: 64 diff changeset	214
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	215 for (iter = cli_opts.remotefwds->first; iter; iter = iter->next) {
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	216 struct TCPFwdEntry fwd = (struct TCPFwdEntry)iter->item;
578 44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	217 if (!fwd->listenaddr)
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	218 {
857 c19acba28590 use oldstyle comments Matt Johnston <matt@ucc.asn.au> parents: 631 diff changeset	219 /* we store the addresses so that we can compare them
c19acba28590 use oldstyle comments Matt Johnston <matt@ucc.asn.au> parents: 631 diff changeset	220 when the server sends them back */
578 44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	221 if (opts.listen_fwd_all) {
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	222 fwd->listenaddr = m_strdup("");
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	223 } else {
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	224 fwd->listenaddr = m_strdup("localhost");
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	225 }
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	226 }
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	227 send_msg_global_request_remotetcp(fwd->listenaddr, fwd->listenport);
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	228 }
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	229
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 156 diff changeset	230 TRACE(("leave setup_remotetcp"))
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	231 }
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	232
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	233 static int newtcpforwarded(struct Channel * channel) {
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	234
1250 2bb4c662d1c2 more hard tab Francois Perrad <francois.perrad@gadz.org> parents: 1215 diff changeset	235 char *origaddr = NULL;
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	236 unsigned int origport;
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	237 m_list_elem * iter = NULL;
1327 e47e4b8a005d initialize variable and protect against NULL dereferencement Francois Perrad <francois.perrad@gadz.org> parents: 1295 diff changeset	238 struct TCPFwdEntry *fwd = NULL;
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	239 char portstring[NI_MAXSERV];
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 66 diff changeset	240 int err = SSH_OPEN_ADMINISTRATIVELY_PROHIBITED;
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	241
1123 d7b752525b91 buf_getstring and buf_putstring now use non-unsigned char* Matt Johnston <matt@ucc.asn.au> parents: 1094 diff changeset	242 origaddr = buf_getstring(ses.payload, NULL);
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	243 origport = buf_getint(ses.payload);
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	244
899 115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	245 /* Find which port corresponds. First try and match address as well as port,
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	246 in case they want to forward different ports separately ... */
551 c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	247 for (iter = cli_opts.remotefwds->first; iter; iter = iter->next) {
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList Matt Johnston <matt@ucc.asn.au> parents: 505 diff changeset	248 fwd = (struct TCPFwdEntry*)iter->item;
578 44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	249 if (origport == fwd->listenport
899 115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	250 && strcmp(origaddr, fwd->listenaddr) == 0) {
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	251 break;
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	252 }
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	253 }
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	254
899 115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	255 if (!iter)
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	256 {
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	257 /* ... otherwise try to generically match the only forwarded port
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	258 without address (also handles ::1 vs 127.0.0.1 vs localhost case).
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	259 rfc4254 is vague about the definition of "address that was connected" */
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	260 for (iter = cli_opts.remotefwds->first; iter; iter = iter->next) {
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	261 fwd = (struct TCPFwdEntry*)iter->item;
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	262 if (origport == fwd->listenport) {
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	263 break;
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	264 }
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	265 }
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	266 }
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	267
115f8a3c2d5a - Fix dbclient with port 0 for server-allocated Matt Johnston <matt@ucc.asn.au> parents: 857 diff changeset	268
1327 e47e4b8a005d initialize variable and protect against NULL dereferencement Francois Perrad <francois.perrad@gadz.org> parents: 1295 diff changeset	269 if (iter == NULL \|\| fwd == NULL) {
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	270 /* We didn't request forwarding on that port */
1250 2bb4c662d1c2 more hard tab Francois Perrad <francois.perrad@gadz.org> parents: 1215 diff changeset	271 cleantext(origaddr);
578 44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	272 dropbear_log(LOG_INFO, "Server sent unrequested forward from \"%s:%d\"",
44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	273 origaddr, origport);
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	274 goto out;
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	275 }
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	276
1237 888e3d17e962 Fix print format specifier Chocobo1 <Chocobo1@users.noreply.github.com> parents: 1215 diff changeset	277 snprintf(portstring, sizeof(portstring), "%u", fwd->connectport);
1466 f787f60f8e45 bind to port as well with -b Matt Johnston <matt@ucc.asn.au> parents: 1465 diff changeset	278 channel->conn_pending = connect_remote(fwd->connectaddr, portstring, channel_connect_done, channel, NULL, NULL);
941 5daedffd0769 Set tcp priority as follows: Matt Johnston <matt@ucc.asn.au> parents: 899 diff changeset	279
5daedffd0769 Set tcp priority as follows: Matt Johnston <matt@ucc.asn.au> parents: 899 diff changeset	280 channel->prio = DROPBEAR_CHANNEL_PRIO_UNKNOWABLE;
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	281
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 66 diff changeset	282 err = SSH_OPEN_IN_PROGRESS;
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	283
efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	284 out:
578 44f486b72427 - tcpfwd bindaddr support against trunk. needs merging. Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	285 m_free(origaddr);
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 156 diff changeset	286 TRACE(("leave newtcpdirect: err %d", err))
70 b0316ce64e4b Merging in the changes from 0.41-0.43 main Dropbear tree Matt Johnston <matt@ucc.asn.au> parents: 66 diff changeset	287 return err;
64 efb5e0b335cf TCP forwarding works. Matt Johnston <matt@ucc.asn.au> parents: 63 diff changeset	288 }
1295 750ec4ec4cbe Convert #ifdef to #if, other build changes Matt Johnston <matt@ucc.asn.au> parents: 1275 diff changeset	289 #endif /* DROPBEAR_CLI_REMOTETCPFWD */

Mercurial > dropbear

annotate cli-tcpfwd.c @ 1747:ff51d5967e2d