diff options
author | Ben Lindstrom <mouring@eviladmin.org> | 2002-06-06 20:27:55 +0000 |
---|---|---|
committer | Ben Lindstrom <mouring@eviladmin.org> | 2002-06-06 20:27:55 +0000 |
commit | 855bf3ac3cf395b282600700c1fd792af1f3fdcb (patch) | |
tree | effce712ac4bb1d7ef46cc3db4fdda2b74756298 /auth2-none.c | |
parent | 4887da222b5dec4e36f85f724d836dfbb6d434c7 (diff) |
- markus@cvs.openbsd.org 2002/05/25 18:51:07
[auth.h auth2.c auth2-hostbased.c auth2-kbdint.c auth2-none.c
auth2-passwd.c auth2-pubkey.c Makefile.in]
split auth2.c into one file per method; ok provos@/deraadt@
NOTE: Merged back noticable cygwin and pam stuff. May need review to
ensure I did not miss anything.
Diffstat (limited to 'auth2-none.c')
-rw-r--r-- | auth2-none.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/auth2-none.c b/auth2-none.c new file mode 100644 index 000000000..30337fd6d --- /dev/null +++ b/auth2-none.c | |||
@@ -0,0 +1,111 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2000 Markus Friedl. All rights reserved. | ||
3 | * | ||
4 | * Redistribution and use in source and binary forms, with or without | ||
5 | * modification, are permitted provided that the following conditions | ||
6 | * are met: | ||
7 | * 1. Redistributions of source code must retain the above copyright | ||
8 | * notice, this list of conditions and the following disclaimer. | ||
9 | * 2. Redistributions in binary form must reproduce the above copyright | ||
10 | * notice, this list of conditions and the following disclaimer in the | ||
11 | * documentation and/or other materials provided with the distribution. | ||
12 | * | ||
13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | ||
14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | ||
15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | ||
16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||
22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
23 | */ | ||
24 | |||
25 | #include "includes.h" | ||
26 | RCSID("$OpenBSD: auth2-none.c,v 1.2 2002/05/31 11:35:15 markus Exp $"); | ||
27 | |||
28 | #include "auth.h" | ||
29 | #include "xmalloc.h" | ||
30 | #include "packet.h" | ||
31 | #include "log.h" | ||
32 | #include "servconf.h" | ||
33 | #include "atomicio.h" | ||
34 | #include "compat.h" | ||
35 | #include "ssh2.h" | ||
36 | #include "monitor_wrap.h" | ||
37 | |||
38 | /* import */ | ||
39 | extern ServerOptions options; | ||
40 | |||
41 | /* "none" is allowed only one time */ | ||
42 | static int none_enabled = 1; | ||
43 | |||
44 | char * | ||
45 | auth2_read_banner(void) | ||
46 | { | ||
47 | struct stat st; | ||
48 | char *banner = NULL; | ||
49 | off_t len, n; | ||
50 | int fd; | ||
51 | |||
52 | if ((fd = open(options.banner, O_RDONLY)) == -1) | ||
53 | return (NULL); | ||
54 | if (fstat(fd, &st) == -1) { | ||
55 | close(fd); | ||
56 | return (NULL); | ||
57 | } | ||
58 | len = st.st_size; | ||
59 | banner = xmalloc(len + 1); | ||
60 | n = atomicio(read, fd, banner, len); | ||
61 | close(fd); | ||
62 | |||
63 | if (n != len) { | ||
64 | free(banner); | ||
65 | return (NULL); | ||
66 | } | ||
67 | banner[n] = '\0'; | ||
68 | |||
69 | return (banner); | ||
70 | } | ||
71 | |||
72 | static void | ||
73 | userauth_banner(void) | ||
74 | { | ||
75 | char *banner = NULL; | ||
76 | |||
77 | if (options.banner == NULL || (datafellows & SSH_BUG_BANNER)) | ||
78 | return; | ||
79 | |||
80 | if ((banner = PRIVSEP(auth2_read_banner())) == NULL) | ||
81 | goto done; | ||
82 | |||
83 | packet_start(SSH2_MSG_USERAUTH_BANNER); | ||
84 | packet_put_cstring(banner); | ||
85 | packet_put_cstring(""); /* language, unused */ | ||
86 | packet_send(); | ||
87 | debug("userauth_banner: sent"); | ||
88 | done: | ||
89 | if (banner) | ||
90 | xfree(banner); | ||
91 | return; | ||
92 | } | ||
93 | |||
94 | static int | ||
95 | userauth_none(Authctxt *authctxt) | ||
96 | { | ||
97 | none_enabled = 0; | ||
98 | packet_check_eom(); | ||
99 | userauth_banner(); | ||
100 | #ifdef HAVE_CYGWIN | ||
101 | if (check_nt_auth(1, authctxt->pw) == 0) | ||
102 | return(0); | ||
103 | #endif | ||
104 | return (authctxt->valid ? PRIVSEP(auth_password(authctxt, "")) : 0); | ||
105 | } | ||
106 | |||
107 | Authmethod method_none = { | ||
108 | "none", | ||
109 | userauth_none, | ||
110 | &none_enabled | ||
111 | }; | ||