Mercurial > dropbear
annotate tcpfwd.h @ 1060:4c733310c21d nocircbuffer
reword comment for clarity
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Sun, 01 Mar 2015 23:26:42 +0800 |
| parents | deed0571cacc |
| children | 4b21d9067162 |
| rev | line source |
|---|---|
| 64 | 1 /* |
| 2 * Dropbear - a SSH2 server | |
| 3 * | |
| 4 * Copyright (c) 2002,2003 Matt Johnston | |
| 5 * All rights reserved. | |
| 6 * | |
| 7 * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| 8 * of this software and associated documentation files (the "Software"), to deal | |
| 9 * in the Software without restriction, including without limitation the rights | |
| 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| 11 * copies of the Software, and to permit persons to whom the Software is | |
| 12 * furnished to do so, subject to the following conditions: | |
| 13 * | |
| 14 * The above copyright notice and this permission notice shall be included in | |
| 15 * all copies or substantial portions of the Software. | |
| 16 * | |
| 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| 20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| 23 * SOFTWARE. */ | |
|
1036
deed0571cacc
DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents:
948
diff
changeset
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24 #ifndef DROPBEAR_TCPFWD_H |
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deed0571cacc
DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
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948
diff
changeset
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25 #define DROPBEAR_TCPFWD_H |
| 64 | 26 |
| 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
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28 #include "list.h" |
| 64 | 29 |
| 30 struct TCPListener { | |
| 31 | |
|
258
306499676384
* add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents:
108
diff
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32 /* For a direct-tcpip request, it's the addr/port we want the other |
| 64 | 33 * end to connect to */ |
| 34 unsigned char *sendaddr; | |
| 35 unsigned int sendport; | |
| 36 | |
|
258
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* add -g (dbclient) and -a (dropbear) options for allowing non-local
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37 /* This is the address/port that we listen on. The address has special |
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* add -g (dbclient) and -a (dropbear) options for allowing non-local
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parents:
108
diff
changeset
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38 * meanings as per the rfc, "" for all interfaces, "localhost" for |
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306499676384
* add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents:
108
diff
changeset
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39 * localhost, or a normal interface name. */ |
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306499676384
* add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents:
108
diff
changeset
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40 unsigned char *listenaddr; |
| 64 | 41 unsigned int listenport; |
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675
dfdb9d9189ff
Server shouldn't return "localhost" in response to -R forward connections
Matt Johnston <matt@ucc.asn.au>
parents:
579
diff
changeset
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42 /* The address that the remote host asked to listen on */ |
|
855
04ede40a529a
- Some fixes for old compilers like tru64 v4 from Daniel Richard G.
Matt Johnston <matt@ucc.asn.au>
parents:
675
diff
changeset
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43 unsigned char *request_listenaddr; |
| 64 | 44 |
| 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
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46 enum {direct, forwarded} tcp_type; |
| 64 | 47 }; |
| 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
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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
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50 struct TCPFwdEntry { |
|
108
10f4d3319780
- added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents:
64
diff
changeset
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51 const unsigned char* connectaddr; |
| 64 | 52 unsigned int connectport; |
|
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
551
diff
changeset
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53 const unsigned char* listenaddr; |
| 64 | 54 unsigned int listenport; |
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505
805e557fdff7
Report errors if a remote request fails
Matt Johnston <matt@ucc.asn.au>
parents:
475
diff
changeset
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55 unsigned int have_reply; /* is set to 1 after a reply has been received |
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805e557fdff7
Report errors if a remote request fails
Matt Johnston <matt@ucc.asn.au>
parents:
475
diff
changeset
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56 when setting up the forwarding */ |
| 64 | 57 }; |
| 58 | |
| 59 /* Server */ | |
| 60 void recv_msg_global_request_remotetcp(); | |
|
475
52a644e7b8e1
* Patch from Frédéric Moulins adding options to authorized_keys.
Matt Johnston <matt@ucc.asn.au>
parents:
259
diff
changeset
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61 |
| 64 | 62 extern const struct ChanType svr_chan_tcpdirect; |
| 63 | |
| 64 /* Client */ | |
| 65 void setup_localtcp(); | |
|
108
10f4d3319780
- added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents:
64
diff
changeset
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66 void setup_remotetcp(); |
| 64 | 67 extern const struct ChanType cli_chan_tcpremote; |
|
505
805e557fdff7
Report errors if a remote request fails
Matt Johnston <matt@ucc.asn.au>
parents:
475
diff
changeset
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68 void cli_recv_msg_request_success(); |
|
805e557fdff7
Report errors if a remote request fails
Matt Johnston <matt@ucc.asn.au>
parents:
475
diff
changeset
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69 void cli_recv_msg_request_failure(); |
| 64 | 70 |
| 71 /* Common */ | |
| 72 int listen_tcpfwd(struct TCPListener* tcpinfo); | |
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941
5daedffd0769
Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents:
855
diff
changeset
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73 int tcp_prio_inithandler(struct Channel* chan); |
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5daedffd0769
Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents:
855
diff
changeset
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74 |
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948
f92eb625c48d
- Don't use multichar constants since recent gcc complains
Matt Johnston <matt@ucc.asn.au>
parents:
941
diff
changeset
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75 /* A random identifier */ |
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f92eb625c48d
- Don't use multichar constants since recent gcc complains
Matt Johnston <matt@ucc.asn.au>
parents:
941
diff
changeset
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76 #define CHANNEL_ID_TCPFORWARDED 0x43612c67 |
| 64 | 77 |
| 78 #endif |