annotate tcpfwd.h @ 1486:cf43bbb6b8ff

limit travis branches
author Matt Johnston <matt@ucc.asn.au>
date Sat, 10 Feb 2018 19:06:30 +0800
parents 9169e4e7cbee
children 572a7aefa188
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1 /*
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
2 * Dropbear - a SSH2 server
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
3 *
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
4 * Copyright (c) 2002,2003 Matt Johnston
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
5 * All rights reserved.
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
6 *
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
8 * of this software and associated documentation files (the "Software"), to deal
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
9 * in the Software without restriction, including without limitation the rights
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
11 * copies of the Software, and to permit persons to whom the Software is
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
12 * furnished to do so, subject to the following conditions:
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
13 *
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
14 * The above copyright notice and this permission notice shall be included in
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
15 * all copies or substantial portions of the Software.
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
16 *
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
23 * SOFTWARE. */
1036
deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents: 948
diff changeset
24 #ifndef DROPBEAR_TCPFWD_H
deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents: 948
diff changeset
25 #define DROPBEAR_TCPFWD_H
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
26
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
27 #include "channel.h"
551
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
Matt Johnston <matt@ucc.asn.au>
parents: 505
diff changeset
28 #include "list.h"
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
29
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
30 struct TCPListener {
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
31
258
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
32 /* For a direct-tcpip request, it's the addr/port we want the other
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
33 * end to connect to */
1099
4b21d9067162 Turn sendaddr, listenaddr and request_listenaddr local variables into char *
Gaël PORTAY <gael.portay@gmail.com>
parents: 1036
diff changeset
34 char *sendaddr;
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
35 unsigned int sendport;
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
36
258
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
37 /* This is the address/port that we listen on. The address has special
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
38 * meanings as per the rfc, "" for all interfaces, "localhost" for
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
39 * localhost, or a normal interface name. */
1099
4b21d9067162 Turn sendaddr, listenaddr and request_listenaddr local variables into char *
Gaël PORTAY <gael.portay@gmail.com>
parents: 1036
diff changeset
40 char *listenaddr;
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
41 unsigned int listenport;
675
dfdb9d9189ff Server shouldn't return "localhost" in response to -R forward connections
Matt Johnston <matt@ucc.asn.au>
parents: 579
diff changeset
42 /* The address that the remote host asked to listen on */
1099
4b21d9067162 Turn sendaddr, listenaddr and request_listenaddr local variables into char *
Gaël PORTAY <gael.portay@gmail.com>
parents: 1036
diff changeset
43 char *request_listenaddr;
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
44
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
45 const struct ChanType *chantype;
259
c049490e43fe * fix -L forwarding on the client, broke last rev
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
46 enum {direct, forwarded} tcp_type;
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
47 };
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
48
551
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
Matt Johnston <matt@ucc.asn.au>
parents: 505
diff changeset
49 /* A forwarding entry */
c3f2ec71e3d4 New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
Matt Johnston <matt@ucc.asn.au>
parents: 505
diff changeset
50 struct TCPFwdEntry {
1116
3d9519ec2b85 Turn TCPFwdEntry's connectaddr and listenaddr attributes into char *
Gaël PORTAY <gael.portay@gmail.com>
parents: 1099
diff changeset
51 const char *connectaddr;
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
52 unsigned int connectport;
1116
3d9519ec2b85 Turn TCPFwdEntry's connectaddr and listenaddr attributes into char *
Gaël PORTAY <gael.portay@gmail.com>
parents: 1099
diff changeset
53 const char *listenaddr;
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
54 unsigned int listenport;
505
805e557fdff7 Report errors if a remote request fails
Matt Johnston <matt@ucc.asn.au>
parents: 475
diff changeset
55 unsigned int have_reply; /* is set to 1 after a reply has been received
805e557fdff7 Report errors if a remote request fails
Matt Johnston <matt@ucc.asn.au>
parents: 475
diff changeset
56 when setting up the forwarding */
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
57 };
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
58
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
59 /* Server */
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1116
diff changeset
60 void recv_msg_global_request_remotetcp(void);
475
52a644e7b8e1 * Patch from Frédéric Moulins adding options to authorized_keys.
Matt Johnston <matt@ucc.asn.au>
parents: 259
diff changeset
61
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
62 extern const struct ChanType svr_chan_tcpdirect;
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
63
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
64 /* Client */
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1116
diff changeset
65 void setup_localtcp(void);
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1116
diff changeset
66 void setup_remotetcp(void);
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
67 extern const struct ChanType cli_chan_tcpremote;
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1116
diff changeset
68 void cli_recv_msg_request_success(void);
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1116
diff changeset
69 void cli_recv_msg_request_failure(void);
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
70
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
71 /* Common */
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
72 int listen_tcpfwd(struct TCPListener* tcpinfo);
941
5daedffd0769 Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents: 855
diff changeset
73 int tcp_prio_inithandler(struct Channel* chan);
5daedffd0769 Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents: 855
diff changeset
74
948
f92eb625c48d - Don't use multichar constants since recent gcc complains
Matt Johnston <matt@ucc.asn.au>
parents: 941
diff changeset
75 /* A random identifier */
f92eb625c48d - Don't use multichar constants since recent gcc complains
Matt Johnston <matt@ucc.asn.au>
parents: 941
diff changeset
76 #define CHANNEL_ID_TCPFORWARDED 0x43612c67
64
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
77
efb5e0b335cf TCP forwarding works.
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
78 #endif