diff options
author | Colin Watson <cjwatson@debian.org> | 2016-12-20 00:22:52 +0000 |
---|---|---|
committer | Colin Watson <cjwatson@debian.org> | 2016-12-20 00:22:52 +0000 |
commit | 971a7653746a6972b907dfe0ce139c06e4a6f482 (patch) | |
tree | 70fb964265d57ae4967be55b75dbb2a122e9b969 /auth-rh-rsa.c | |
parent | a8ed8d256b2e2c05b0c15565a7938028c5192277 (diff) | |
parent | 4a354fc231174901f2629437c2a6e924a2dd6772 (diff) |
Import openssh_7.4p1.orig.tar.gz
Diffstat (limited to 'auth-rh-rsa.c')
-rw-r--r-- | auth-rh-rsa.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/auth-rh-rsa.c b/auth-rh-rsa.c deleted file mode 100644 index 057335ba4..000000000 --- a/auth-rh-rsa.c +++ /dev/null | |||
@@ -1,109 +0,0 @@ | |||
1 | /* $OpenBSD: auth-rh-rsa.c,v 1.45 2016/03/07 19:02:43 djm Exp $ */ | ||
2 | /* | ||
3 | * Author: Tatu Ylonen <ylo@cs.hut.fi> | ||
4 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | ||
5 | * All rights reserved | ||
6 | * Rhosts or /etc/hosts.equiv authentication combined with RSA host | ||
7 | * authentication. | ||
8 | * | ||
9 | * As far as I am concerned, the code I have written for this software | ||
10 | * can be used freely for any purpose. Any derived versions of this | ||
11 | * software must be clearly marked as such, and if the derived work is | ||
12 | * incompatible with the protocol description in the RFC file, it must be | ||
13 | * called by a name other than "ssh" or "Secure Shell". | ||
14 | */ | ||
15 | |||
16 | #include "includes.h" | ||
17 | |||
18 | #ifdef WITH_SSH1 | ||
19 | |||
20 | #include <sys/types.h> | ||
21 | |||
22 | #include <pwd.h> | ||
23 | #include <stdarg.h> | ||
24 | |||
25 | #include "packet.h" | ||
26 | #include "uidswap.h" | ||
27 | #include "log.h" | ||
28 | #include "buffer.h" | ||
29 | #include "misc.h" | ||
30 | #include "servconf.h" | ||
31 | #include "key.h" | ||
32 | #include "hostfile.h" | ||
33 | #include "pathnames.h" | ||
34 | #include "auth.h" | ||
35 | #include "canohost.h" | ||
36 | #ifdef GSSAPI | ||
37 | #include "ssh-gss.h" | ||
38 | #endif | ||
39 | #include "monitor_wrap.h" | ||
40 | |||
41 | /* import */ | ||
42 | extern ServerOptions options; | ||
43 | |||
44 | int | ||
45 | auth_rhosts_rsa_key_allowed(struct passwd *pw, const char *cuser, | ||
46 | const char *chost, Key *client_host_key) | ||
47 | { | ||
48 | HostStatus host_status; | ||
49 | |||
50 | if (auth_key_is_revoked(client_host_key)) | ||
51 | return 0; | ||
52 | |||
53 | /* Check if we would accept it using rhosts authentication. */ | ||
54 | if (!auth_rhosts(pw, cuser)) | ||
55 | return 0; | ||
56 | |||
57 | host_status = check_key_in_hostfiles(pw, client_host_key, | ||
58 | chost, _PATH_SSH_SYSTEM_HOSTFILE, | ||
59 | options.ignore_user_known_hosts ? NULL : _PATH_SSH_USER_HOSTFILE); | ||
60 | |||
61 | return (host_status == HOST_OK); | ||
62 | } | ||
63 | |||
64 | /* | ||
65 | * Tries to authenticate the user using the .rhosts file and the host using | ||
66 | * its host key. Returns true if authentication succeeds. | ||
67 | */ | ||
68 | int | ||
69 | auth_rhosts_rsa(Authctxt *authctxt, char *cuser, Key *client_host_key) | ||
70 | { | ||
71 | struct ssh *ssh = active_state; /* XXX */ | ||
72 | const char *chost; | ||
73 | struct passwd *pw = authctxt->pw; | ||
74 | |||
75 | debug("Trying rhosts with RSA host authentication for client user %.100s", | ||
76 | cuser); | ||
77 | |||
78 | if (!authctxt->valid || client_host_key == NULL || | ||
79 | client_host_key->rsa == NULL) | ||
80 | return 0; | ||
81 | |||
82 | chost = auth_get_canonical_hostname(ssh, options.use_dns); | ||
83 | debug("Rhosts RSA authentication: canonical host %.900s", chost); | ||
84 | |||
85 | if (!PRIVSEP(auth_rhosts_rsa_key_allowed(pw, cuser, chost, client_host_key))) { | ||
86 | debug("Rhosts with RSA host authentication denied: unknown or invalid host key"); | ||
87 | packet_send_debug("Your host key cannot be verified: unknown or invalid host key."); | ||
88 | return 0; | ||
89 | } | ||
90 | /* A matching host key was found and is known. */ | ||
91 | |||
92 | /* Perform the challenge-response dialog with the client for the host key. */ | ||
93 | if (!auth_rsa_challenge_dialog(client_host_key)) { | ||
94 | logit("Client on %.800s failed to respond correctly to host authentication.", | ||
95 | chost); | ||
96 | return 0; | ||
97 | } | ||
98 | /* | ||
99 | * We have authenticated the user using .rhosts or /etc/hosts.equiv, | ||
100 | * and the host using RSA. We accept the authentication. | ||
101 | */ | ||
102 | |||
103 | verbose("Rhosts with RSA host authentication accepted for %.100s, %.100s on %.700s.", | ||
104 | pw->pw_name, cuser, chost); | ||
105 | packet_send_debug("Rhosts with RSA host authentication accepted."); | ||
106 | return 1; | ||
107 | } | ||
108 | |||
109 | #endif /* WITH_SSH1 */ | ||