Mercurial > dropbear
annotate svr-main.c @ 994:5c5ade336926
Prefer stronger algorithms in algorithm negotiation.
Prefer diffie-hellman-group14-sha1 (2048 bit) over
diffie-hellman-group1-sha1 (1024 bit).
Due to meet-in-the-middle attacks the effective key length of
three key 3DES is 112 bits. AES is stronger and faster then 3DES.
Prefer to delay the start of compression until after authentication
has completed. This avoids exposing compression code to attacks
from unauthenticated users.
(github pull request #9)
author | Fedor Brunner <fedor.brunner@azet.sk> |
---|---|
date | Fri, 23 Jan 2015 23:00:25 +0800 |
parents | 0bb16232e7c4 |
children | a48561559584 |
rev | line source |
---|---|
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
1 /* |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
2 * Dropbear - a SSH2 server |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
3 * |
290 | 4 * Copyright (c) 2002-2006 Matt Johnston |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
5 * All rights reserved. |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
6 * |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
7 * Permission is hereby granted, free of charge, to any person obtaining a copy |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
8 * of this software and associated documentation files (the "Software"), to deal |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
9 * in the Software without restriction, including without limitation the rights |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
11 * copies of the Software, and to permit persons to whom the Software is |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
12 * furnished to do so, subject to the following conditions: |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
13 * |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
14 * The above copyright notice and this permission notice shall be included in |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
15 * all copies or substantial portions of the Software. |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
16 * |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
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 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
23 * SOFTWARE. */ |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
24 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
25 #include "includes.h" |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
26 #include "dbutil.h" |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
27 #include "session.h" |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
28 #include "buffer.h" |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
29 #include "signkey.h" |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
30 #include "runopts.h" |
858
220f55d540ae
rename random.h to dbrandom.h since some OSes have a system random.h
Matt Johnston <matt@ucc.asn.au>
parents:
795
diff
changeset
|
31 #include "dbrandom.h" |
795 | 32 #include "crypto_desc.h" |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
33 |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
34 static size_t listensockets(int *sock, size_t sockcount, int *maxfd); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
35 static void sigchld_handler(int dummy); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
36 static void sigsegv_handler(int); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
37 static void sigintterm_handler(int fish); |
156
8c2b3506f112
Rearrange preprocessor parts so that compilation with various options
Matt Johnston <matt@ucc.asn.au>
parents:
113
diff
changeset
|
38 #ifdef INETD_MODE |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
39 static void main_inetd(); |
156
8c2b3506f112
Rearrange preprocessor parts so that compilation with various options
Matt Johnston <matt@ucc.asn.au>
parents:
113
diff
changeset
|
40 #endif |
8c2b3506f112
Rearrange preprocessor parts so that compilation with various options
Matt Johnston <matt@ucc.asn.au>
parents:
113
diff
changeset
|
41 #ifdef NON_INETD_MODE |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
42 static void main_noinetd(); |
156
8c2b3506f112
Rearrange preprocessor parts so that compilation with various options
Matt Johnston <matt@ucc.asn.au>
parents:
113
diff
changeset
|
43 #endif |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
44 static void commonsetup(); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
45 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
46 #if defined(DBMULTI_dropbear) || !defined(DROPBEAR_MULTI) |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
47 #if defined(DBMULTI_dropbear) && defined(DROPBEAR_MULTI) |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
48 int dropbear_main(int argc, char ** argv) |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
49 #else |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
50 int main(int argc, char ** argv) |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
51 #endif |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
52 { |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
53 _dropbear_exit = svr_dropbear_exit; |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
54 _dropbear_log = svr_dropbear_log; |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
55 |
425 | 56 disallow_core(); |
57 | |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
58 /* get commandline options */ |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
59 svr_getopts(argc, argv); |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
60 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
61 #ifdef INETD_MODE |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
62 /* service program mode */ |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
63 if (svr_opts.inetdmode) { |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
64 main_inetd(); |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
65 /* notreached */ |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
66 } |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
67 #endif |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
68 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
69 #ifdef NON_INETD_MODE |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
70 main_noinetd(); |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
71 /* notreached */ |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
72 #endif |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
73 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
74 dropbear_exit("Compiled without normal mode, can't run without -i\n"); |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
75 return -1; |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
76 } |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
77 #endif |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
78 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
79 #ifdef INETD_MODE |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
80 static void main_inetd() { |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
81 char *host, *port = NULL; |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
82 |
272
3be7ae2e8dfa
Only read /dev/random once when the program starts
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
83 /* Set up handlers, syslog, seed random */ |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
84 commonsetup(); |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
85 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
86 /* In case our inetd was lax in logging source addresses */ |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
87 get_socket_address(0, NULL, NULL, &host, &port, 0); |
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
88 dropbear_log(LOG_INFO, "Child connection from %s:%s", host, port); |
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
89 m_free(host); |
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
90 m_free(port); |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
91 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
92 /* Don't check the return value - it may just fail since inetd has |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
93 * already done setsid() after forking (xinetd on Darwin appears to do |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
94 * this */ |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
95 setsid(); |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
96 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
97 /* Start service program |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
98 * -1 is a dummy childpipe, just something we can close() without |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
99 * mattering. */ |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
100 svr_session(0, -1); |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
101 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
102 /* notreached */ |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
103 } |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
104 #endif /* INETD_MODE */ |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
105 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
106 #ifdef NON_INETD_MODE |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
107 void main_noinetd() { |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
108 fd_set fds; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
109 unsigned int i, j; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
110 int val; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
111 int maxsock = -1; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
112 int listensocks[MAX_LISTEN_ADDR]; |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
113 size_t listensockcount = 0; |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
114 FILE *pidfile = NULL; |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
115 |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
116 int childpipes[MAX_UNAUTH_CLIENTS]; |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
117 char * preauth_addrs[MAX_UNAUTH_CLIENTS]; |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
118 |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
119 int childsock; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
120 int childpipe[2]; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
121 |
433
c216212001fc
Fix for -pedantic -ansi compilation, change // to /**/, plus some signedness
Matt Johnston <matt@ucc.asn.au>
parents:
425
diff
changeset
|
122 /* Note: commonsetup() must happen before we daemon()ise. Otherwise |
c216212001fc
Fix for -pedantic -ansi compilation, change // to /**/, plus some signedness
Matt Johnston <matt@ucc.asn.au>
parents:
425
diff
changeset
|
123 daemon() will chdir("/"), and we won't be able to find local-dir |
c216212001fc
Fix for -pedantic -ansi compilation, change // to /**/, plus some signedness
Matt Johnston <matt@ucc.asn.au>
parents:
425
diff
changeset
|
124 hostkeys. */ |
379
b66a00272a90
Load hostkeys before daemon(), since daemon()'s chdir("/") will prevent us
Matt Johnston <matt@ucc.asn.au>
parents:
323
diff
changeset
|
125 commonsetup(); |
b66a00272a90
Load hostkeys before daemon(), since daemon()'s chdir("/") will prevent us
Matt Johnston <matt@ucc.asn.au>
parents:
323
diff
changeset
|
126 |
447
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
127 /* sockets to identify pre-authenticated clients */ |
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
128 for (i = 0; i < MAX_UNAUTH_CLIENTS; i++) { |
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
129 childpipes[i] = -1; |
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
130 } |
539
07a58e4da1ac
use memset() rather than bzero()
Matt Johnston <matt@ucc.asn.au>
parents:
476
diff
changeset
|
131 memset(preauth_addrs, 0x0, sizeof(preauth_addrs)); |
447
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
132 |
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
133 /* Set up the listening sockets */ |
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
134 listensockcount = listensockets(listensocks, MAX_LISTEN_ADDR, &maxsock); |
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
135 if (listensockcount == 0) |
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
136 { |
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
137 dropbear_exit("No listening ports available."); |
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
138 } |
278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
Matt Johnston <matt@ucc.asn.au>
parents:
445
diff
changeset
|
139 |
871
aa689d140928
- Sockets are set to lowdelay priority initially to improve conneciton setup
Matt Johnston <matt@ucc.asn.au>
parents:
858
diff
changeset
|
140 for (i = 0; i < listensockcount; i++) { |
aa689d140928
- Sockets are set to lowdelay priority initially to improve conneciton setup
Matt Johnston <matt@ucc.asn.au>
parents:
858
diff
changeset
|
141 set_sock_priority(listensocks[i], DROPBEAR_PRIO_LOWDELAY); |
aa689d140928
- Sockets are set to lowdelay priority initially to improve conneciton setup
Matt Johnston <matt@ucc.asn.au>
parents:
858
diff
changeset
|
142 FD_SET(listensocks[i], &fds); |
aa689d140928
- Sockets are set to lowdelay priority initially to improve conneciton setup
Matt Johnston <matt@ucc.asn.au>
parents:
858
diff
changeset
|
143 } |
aa689d140928
- Sockets are set to lowdelay priority initially to improve conneciton setup
Matt Johnston <matt@ucc.asn.au>
parents:
858
diff
changeset
|
144 |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
145 /* fork */ |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
146 if (svr_opts.forkbg) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
147 int closefds = 0; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
148 #ifndef DEBUG_TRACE |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
149 if (!svr_opts.usingsyslog) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
150 closefds = 1; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
151 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
152 #endif |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
153 if (daemon(0, closefds) < 0) { |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
154 dropbear_exit("Failed to daemonize: %s", strerror(errno)); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
155 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
156 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
157 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
158 /* should be done after syslog is working */ |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
159 if (svr_opts.forkbg) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
160 dropbear_log(LOG_INFO, "Running in background"); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
161 } else { |
445
edbee0596531
"backgrounding" is more user-understandable than "forking"
Matt Johnston <matt@ucc.asn.au>
parents:
435
diff
changeset
|
162 dropbear_log(LOG_INFO, "Not backgrounding"); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
163 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
164 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
165 /* create a PID file so that we can be killed easily */ |
323
3bfbe95f9a14
Add -P pidfile patch from Swen Schillig
Matt Johnston <matt@ucc.asn.au>
parents:
298
diff
changeset
|
166 pidfile = fopen(svr_opts.pidfile, "w"); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
167 if (pidfile) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
168 fprintf(pidfile, "%d\n", getpid()); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
169 fclose(pidfile); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
170 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
171 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
172 /* incoming connection select loop */ |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
173 for(;;) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
174 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
175 FD_ZERO(&fds); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
176 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
177 /* listening sockets */ |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
178 for (i = 0; i < listensockcount; i++) { |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
179 FD_SET(listensocks[i], &fds); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
180 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
181 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
182 /* pre-authentication clients */ |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
183 for (i = 0; i < MAX_UNAUTH_CLIENTS; i++) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
184 if (childpipes[i] >= 0) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
185 FD_SET(childpipes[i], &fds); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
186 maxsock = MAX(maxsock, childpipes[i]); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
187 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
188 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
189 |
454
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents:
447
diff
changeset
|
190 val = select(maxsock+1, &fds, NULL, NULL, NULL); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
191 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
192 if (exitflag) { |
323
3bfbe95f9a14
Add -P pidfile patch from Swen Schillig
Matt Johnston <matt@ucc.asn.au>
parents:
298
diff
changeset
|
193 unlink(svr_opts.pidfile); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
194 dropbear_exit("Terminated by signal"); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
195 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
196 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
197 if (val == 0) { |
454
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents:
447
diff
changeset
|
198 /* timeout reached - shouldn't happen. eh */ |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
199 continue; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
200 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
201 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
202 if (val < 0) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
203 if (errno == EINTR) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
204 continue; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
205 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
206 dropbear_exit("Listening socket error"); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
207 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
208 |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
209 /* close fds which have been authed or closed - svr-auth.c handles |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
210 * closing the auth sockets on success */ |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
211 for (i = 0; i < MAX_UNAUTH_CLIENTS; i++) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
212 if (childpipes[i] >= 0 && FD_ISSET(childpipes[i], &fds)) { |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
213 m_close(childpipes[i]); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
214 childpipes[i] = -1; |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
215 m_free(preauth_addrs[i]); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
216 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
217 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
218 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
219 /* handle each socket which has something to say */ |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
220 for (i = 0; i < listensockcount; i++) { |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
221 size_t num_unauthed_for_addr = 0; |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
222 size_t num_unauthed_total = 0; |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
223 char *remote_host = NULL, *remote_port = NULL; |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
224 pid_t fork_ret = 0; |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
225 size_t conn_idx = 0; |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
226 struct sockaddr_storage remoteaddr; |
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
227 socklen_t remoteaddrlen; |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
228 |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
229 if (!FD_ISSET(listensocks[i], &fds)) |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
230 continue; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
231 |
62 | 232 remoteaddrlen = sizeof(remoteaddr); |
63
dcc43965928f
- A nice cleaner structure for tcp (acceptor) forwarding.
Matt Johnston <matt@ucc.asn.au>
parents:
62
diff
changeset
|
233 childsock = accept(listensocks[i], |
dcc43965928f
- A nice cleaner structure for tcp (acceptor) forwarding.
Matt Johnston <matt@ucc.asn.au>
parents:
62
diff
changeset
|
234 (struct sockaddr*)&remoteaddr, &remoteaddrlen); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
235 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
236 if (childsock < 0) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
237 /* accept failed */ |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
238 continue; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
239 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
240 |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
241 /* Limit the number of unauthenticated connections per IP */ |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
242 getaddrstring(&remoteaddr, &remote_host, NULL, 0); |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
243 |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
244 num_unauthed_for_addr = 0; |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
245 num_unauthed_total = 0; |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
246 for (j = 0; j < MAX_UNAUTH_CLIENTS; j++) { |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
247 if (childpipes[j] >= 0) { |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
248 num_unauthed_total++; |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
249 if (strcmp(remote_host, preauth_addrs[j]) == 0) { |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
250 num_unauthed_for_addr++; |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
251 } |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
252 } else { |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
253 /* a free slot */ |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
254 conn_idx = j; |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
255 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
256 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
257 |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
258 if (num_unauthed_total >= MAX_UNAUTH_CLIENTS |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
259 || num_unauthed_for_addr >= MAX_UNAUTH_PER_IP) { |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
260 goto out; |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
261 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
262 |
687 | 263 seedrandom(); |
264 | |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
265 if (pipe(childpipe) < 0) { |
165
0cfba3034be5
Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents:
158
diff
changeset
|
266 TRACE(("error creating child pipe")) |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
267 goto out; |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
268 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
269 |
476
df7f7da7f6e4
- Rework pubkey options to be more careful about buffer lengths. Needs review.
Matt Johnston <matt@ucc.asn.au>
parents:
454
diff
changeset
|
270 #ifdef DEBUG_NOFORK |
df7f7da7f6e4
- Rework pubkey options to be more careful about buffer lengths. Needs review.
Matt Johnston <matt@ucc.asn.au>
parents:
454
diff
changeset
|
271 fork_ret = 0; |
df7f7da7f6e4
- Rework pubkey options to be more careful about buffer lengths. Needs review.
Matt Johnston <matt@ucc.asn.au>
parents:
454
diff
changeset
|
272 #else |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
273 fork_ret = fork(); |
476
df7f7da7f6e4
- Rework pubkey options to be more careful about buffer lengths. Needs review.
Matt Johnston <matt@ucc.asn.au>
parents:
454
diff
changeset
|
274 #endif |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
275 if (fork_ret < 0) { |
594
a98a2138364a
Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents:
568
diff
changeset
|
276 dropbear_log(LOG_WARNING, "Error forking: %s", strerror(errno)); |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
277 goto out; |
687 | 278 } |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
279 |
723 | 280 addrandom((void*)&fork_ret, sizeof(fork_ret)); |
687 | 281 |
282 if (fork_ret > 0) { | |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
283 |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
284 /* parent */ |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
285 childpipes[conn_idx] = childpipe[0]; |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
286 m_close(childpipe[1]); |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
287 preauth_addrs[conn_idx] = remote_host; |
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
288 remote_host = NULL; |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
289 |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
290 } else { |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
291 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
292 /* child */ |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
293 #ifdef DEBUG_FORKGPROF |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
294 extern void _start(void), etext(void); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
295 monstartup((u_long)&_start, (u_long)&etext); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
296 #endif /* DEBUG_FORKGPROF */ |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
297 |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
298 getaddrstring(&remoteaddr, NULL, &remote_port, 0); |
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
299 dropbear_log(LOG_INFO, "Child connection from %s:%s", remote_host, remote_port); |
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
300 m_free(remote_host); |
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
301 m_free(remote_port); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
302 |
476
df7f7da7f6e4
- Rework pubkey options to be more careful about buffer lengths. Needs review.
Matt Johnston <matt@ucc.asn.au>
parents:
454
diff
changeset
|
303 #ifndef DEBUG_NOFORK |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
304 if (setsid() < 0) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
305 dropbear_exit("setsid: %s", strerror(errno)); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
306 } |
476
df7f7da7f6e4
- Rework pubkey options to be more careful about buffer lengths. Needs review.
Matt Johnston <matt@ucc.asn.au>
parents:
454
diff
changeset
|
307 #endif |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
308 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
309 /* make sure we close sockets */ |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
310 for (i = 0; i < listensockcount; i++) { |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
311 m_close(listensocks[i]); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
312 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
313 |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
314 m_close(childpipe[0]); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
315 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
316 /* start the session */ |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
317 svr_session(childsock, childpipe[1]); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
318 /* don't return */ |
241
c5d3ef11155f
* use own assertions which should get logged properly
Matt Johnston <matt@ucc.asn.au>
parents:
165
diff
changeset
|
319 dropbear_assert(0); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
320 } |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
321 |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
322 out: |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
323 /* This section is important for the parent too */ |
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
324 m_close(childsock); |
568
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
325 if (remote_host) { |
005530560594
Rearrange getaddrstring() etc
Matt Johnston <matt@ucc.asn.au>
parents:
539
diff
changeset
|
326 m_free(remote_host); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
327 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
328 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
329 } /* for(;;) loop */ |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
330 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
331 /* don't reach here */ |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
332 } |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
333 #endif /* NON_INETD_MODE */ |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
334 |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
335 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
336 /* catch + reap zombie children */ |
108
10f4d3319780
- added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents:
101
diff
changeset
|
337 static void sigchld_handler(int UNUSED(unused)) { |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
338 struct sigaction sa_chld; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
339 |
893
860e3522f8fc
- Save errno in signal handlers
Matt Johnston <matt@ucc.asn.au>
parents:
871
diff
changeset
|
340 const int saved_errno = errno; |
860e3522f8fc
- Save errno in signal handlers
Matt Johnston <matt@ucc.asn.au>
parents:
871
diff
changeset
|
341 |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
342 while(waitpid(-1, NULL, WNOHANG) > 0); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
343 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
344 sa_chld.sa_handler = sigchld_handler; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
345 sa_chld.sa_flags = SA_NOCLDSTOP; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
346 if (sigaction(SIGCHLD, &sa_chld, NULL) < 0) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
347 dropbear_exit("signal() error"); |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
348 } |
893
860e3522f8fc
- Save errno in signal handlers
Matt Johnston <matt@ucc.asn.au>
parents:
871
diff
changeset
|
349 errno = saved_errno; |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
350 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
351 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
352 /* catch any segvs */ |
108
10f4d3319780
- added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents:
101
diff
changeset
|
353 static void sigsegv_handler(int UNUSED(unused)) { |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
354 fprintf(stderr, "Aiee, segfault! You should probably report " |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
355 "this as a bug to the developer\n"); |
893
860e3522f8fc
- Save errno in signal handlers
Matt Johnston <matt@ucc.asn.au>
parents:
871
diff
changeset
|
356 _exit(EXIT_FAILURE); |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
357 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
358 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
359 /* catch ctrl-c or sigterm */ |
108
10f4d3319780
- added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents:
101
diff
changeset
|
360 static void sigintterm_handler(int UNUSED(unused)) { |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
361 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
362 exitflag = 1; |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
363 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
364 |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
365 /* Things used by inetd and non-inetd modes */ |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
366 static void commonsetup() { |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
367 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
368 struct sigaction sa_chld; |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
369 #ifndef DISABLE_SYSLOG |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
370 if (svr_opts.usingsyslog) { |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
371 startsyslog(); |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
372 } |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
373 #endif |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
374 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
375 /* set up cleanup handler */ |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
376 if (signal(SIGINT, sigintterm_handler) == SIG_ERR || |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
377 #ifndef DEBUG_VALGRIND |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
378 signal(SIGTERM, sigintterm_handler) == SIG_ERR || |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
379 #endif |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
380 signal(SIGPIPE, SIG_IGN) == SIG_ERR) { |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
381 dropbear_exit("signal() error"); |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
382 } |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
383 |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
384 /* catch and reap zombie children */ |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
385 sa_chld.sa_handler = sigchld_handler; |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
386 sa_chld.sa_flags = SA_NOCLDSTOP; |
658
d4d0279710b9
- Initialise sa_mask properly
Matt Johnston <matt@ucc.asn.au>
parents:
656
diff
changeset
|
387 sigemptyset(&sa_chld.sa_mask); |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
388 if (sigaction(SIGCHLD, &sa_chld, NULL) < 0) { |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
389 dropbear_exit("signal() error"); |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
390 } |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
391 if (signal(SIGSEGV, sigsegv_handler) == SIG_ERR) { |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
392 dropbear_exit("signal() error"); |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
393 } |
113
775c6cbfe995
Load the hostkeys for inetd too - oops
Matt Johnston <matt@ucc.asn.au>
parents:
108
diff
changeset
|
394 |
795 | 395 crypto_init(); |
396 | |
113
775c6cbfe995
Load the hostkeys for inetd too - oops
Matt Johnston <matt@ucc.asn.au>
parents:
108
diff
changeset
|
397 /* Now we can setup the hostkeys - needs to be after logging is on, |
775c6cbfe995
Load the hostkeys for inetd too - oops
Matt Johnston <matt@ucc.asn.au>
parents:
108
diff
changeset
|
398 * otherwise we might end up blatting error messages to the socket */ |
795 | 399 load_all_hostkeys(); |
272
3be7ae2e8dfa
Only read /dev/random once when the program starts
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
400 |
3be7ae2e8dfa
Only read /dev/random once when the program starts
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
401 seedrandom(); |
71
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
402 } |
ac96bc733e71
adding inetd mode back from 0.43
Matt Johnston <matt@ucc.asn.au>
parents:
63
diff
changeset
|
403 |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
404 /* Set up listening sockets for all the requested ports */ |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
405 static size_t listensockets(int *sock, size_t sockcount, int *maxfd) { |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
406 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
407 unsigned int i; |
62 | 408 char* errstring = NULL; |
277
044bc108b9b3
* Per-IP connection unauthed connection limits
Matt Johnston <matt@ucc.asn.au>
parents:
258
diff
changeset
|
409 size_t sockpos = 0; |
62 | 410 int nsock; |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
411 |
970
0bb16232e7c4
Make keepalive handling more robust, this should now match what OpenSSH does
Matt Johnston <matt@ucc.asn.au>
parents:
893
diff
changeset
|
412 TRACE(("listensockets: %d to try", svr_opts.portcount)) |
101
72dc22f56858
Change the way we load keys/ports so we don't print error messages into our
Matt Johnston <matt@ucc.asn.au>
parents:
71
diff
changeset
|
413 |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
414 for (i = 0; i < svr_opts.portcount; i++) { |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
415 |
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
290
diff
changeset
|
416 TRACE(("listening on '%s:%s'", svr_opts.addresses[i], svr_opts.ports[i])) |
101
72dc22f56858
Change the way we load keys/ports so we don't print error messages into our
Matt Johnston <matt@ucc.asn.au>
parents:
71
diff
changeset
|
417 |
434
0aaaf68e97dc
Add -p [address:]port option for binding to addresses, patch from
Matt Johnston <matt@ucc.asn.au>
parents:
290
diff
changeset
|
418 nsock = dropbear_listen(svr_opts.addresses[i], svr_opts.ports[i], &sock[sockpos], |
62 | 419 sockcount - sockpos, |
420 &errstring, maxfd); | |
421 | |
422 if (nsock < 0) { | |
101
72dc22f56858
Change the way we load keys/ports so we don't print error messages into our
Matt Johnston <matt@ucc.asn.au>
parents:
71
diff
changeset
|
423 dropbear_log(LOG_WARNING, "Failed listening on '%s': %s", |
72dc22f56858
Change the way we load keys/ports so we don't print error messages into our
Matt Johnston <matt@ucc.asn.au>
parents:
71
diff
changeset
|
424 svr_opts.ports[i], errstring); |
62 | 425 m_free(errstring); |
426 continue; | |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
427 } |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
428 |
62 | 429 sockpos += nsock; |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
430 |
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
431 } |
62 | 432 return sockpos; |
30
223b0f5f8dce
Switching to the magical new Makefile, and new dbmulti style
Matt Johnston <matt@ucc.asn.au>
parents:
diff
changeset
|
433 } |