Mercurial > dropbear

annotate cli-auth.c @ 862:9ec083a21adf

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added tag DROPBEAR_2013.61test for changeset e894dbc015ba
author Matt Johnston <matt@ucc.asn.au>
date Thu, 14 Nov 2013 22:39:16 +0800
parents 619b1ed837fd
children ff597bf2cfb0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
74
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
1 /*
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
2 * Dropbear SSH
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
3 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
4 * Copyright (c) 2002,2003 Matt Johnston
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
5 * Copyright (c) 2004 by Mihnea Stoenescu
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
6 * All rights reserved.
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
7 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
9 * of this software and associated documentation files (the "Software"), to deal
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
10 * in the Software without restriction, including without limitation the rights
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
12 * copies of the Software, and to permit persons to whom the Software is
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
13 * furnished to do so, subject to the following conditions:
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
14 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
15 * The above copyright notice and this permission notice shall be included in
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
16 * all copies or substantial portions of the Software.
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
17 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
24 * SOFTWARE. */
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 68
diff changeset
25
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
26 #include "includes.h"
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
27 #include "session.h"
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
28 #include "auth.h"
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
29 #include "dbutil.h"
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
30 #include "buffer.h"
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
31 #include "ssh.h"
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
32 #include "packet.h"
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
33 #include "runopts.h"
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
34
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
35 void cli_authinitialise() {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
36
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
37 memset(&ses.authstate, 0, sizeof(ses.authstate));
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
38 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
39
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
40
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
41 /* Send a "none" auth request to get available methods */
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
42 void cli_auth_getmethods() {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 114
diff changeset
43 TRACE(("enter cli_auth_getmethods"))
730
714b9106e335 Send an auth packet straight away, save another roundtrip
Matt Johnston <matt@ucc.asn.au>
parents: 686
diff changeset
44 #ifdef CLI_IMMEDIATE_AUTH
734
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
45 ses.authstate.authtypes = AUTH_TYPE_PUBKEY;
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
46 if (getenv(DROPBEAR_PASSWORD_ENV)) {
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
47 ses.authstate.authtypes |= AUTH_TYPE_PASSWORD | AUTH_TYPE_INTERACT;
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
48 }
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
49 if (cli_auth_try() == DROPBEAR_SUCCESS) {
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
50 TRACE(("skipped initial none auth query"))
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
51 return;
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
52 }
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
53 #endif
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
54 CHECKCLEARTOWRITE();
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
55 buf_putbyte(ses.writepayload, SSH_MSG_USERAUTH_REQUEST);
35
0ad5fb979f42 set the isserver flag (oops)
Matt Johnston <matt@ucc.asn.au>
parents: 34
diff changeset
56 buf_putstring(ses.writepayload, cli_opts.username,
0ad5fb979f42 set the isserver flag (oops)
Matt Johnston <matt@ucc.asn.au>
parents: 34
diff changeset
57 strlen(cli_opts.username));
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
58 buf_putstring(ses.writepayload, SSH_SERVICE_CONNECTION,
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
59 SSH_SERVICE_CONNECTION_LEN);
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
60 buf_putstring(ses.writepayload, "none", 4); /* 'none' method */
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
61
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
62 encrypt_packet();
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 114
diff changeset
63 TRACE(("leave cli_auth_getmethods"))
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
64 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
65
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
66 void recv_msg_userauth_banner() {
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
67
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
68 unsigned char* banner = NULL;
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
69 unsigned int bannerlen;
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
70 unsigned int i, linecount;
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
71
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 114
diff changeset
72 TRACE(("enter recv_msg_userauth_banner"))
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
73 if (ses.authstate.authdone) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 114
diff changeset
74 TRACE(("leave recv_msg_userauth_banner: banner after auth done"))
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
75 return;
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
76 }
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
77
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
78 banner = buf_getstring(ses.payload, &bannerlen);
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
79 buf_eatstring(ses.payload); /* The language string */
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
80
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
81 if (bannerlen > MAX_BANNER_SIZE) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 114
diff changeset
82 TRACE(("recv_msg_userauth_banner: bannerlen too long: %d", bannerlen))
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
83 goto out;
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
84 }
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
85
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
86 cleantext(banner);
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
87
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
88 /* Limit to 25 lines */
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
89 linecount = 1;
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
90 for (i = 0; i < bannerlen; i++) {
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
91 if (banner[i] == '\n') {
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
92 if (linecount >= MAX_BANNER_LINES) {
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
93 banner[i] = '\0';
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
94 break;
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
95 }
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
96 linecount++;
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
97 }
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
98 }
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
99
545
00e619aa2f9a - Print banner to stderr. Probably the right way, and avoids
Matt Johnston <matt@ucc.asn.au>
parents: 501
diff changeset
100 fprintf(stderr, "%s\n", banner);
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
101
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
102 out:
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
103 m_free(banner);
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 114
diff changeset
104 TRACE(("leave recv_msg_userauth_banner"))
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
105 }
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
106
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
107 /* This handles the message-specific types which
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
108 * all have a value of 60. These are
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
109 * SSH_MSG_USERAUTH_PASSWD_CHANGEREQ,
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
110 * SSH_MSG_USERAUTH_PK_OK, &
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
111 * SSH_MSG_USERAUTH_INFO_REQUEST. */
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
112 void recv_msg_userauth_specific_60() {
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
113
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
114 #ifdef ENABLE_CLI_PUBKEY_AUTH
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
115 if (cli_ses.lastauthtype == AUTH_TYPE_PUBKEY) {
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
116 recv_msg_userauth_pk_ok();
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
117 return;
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
118 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
119 #endif
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
120
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
121 #ifdef ENABLE_CLI_INTERACT_AUTH
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
122 if (cli_ses.lastauthtype == AUTH_TYPE_INTERACT) {
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
123 recv_msg_userauth_info_request();
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
124 return;
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
125 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
126 #endif
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
127
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
128 #ifdef ENABLE_CLI_PASSWORD_AUTH
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
129 if (cli_ses.lastauthtype == AUTH_TYPE_PASSWORD) {
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
130 /* Eventually there could be proper password-changing
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
131 * support. However currently few servers seem to
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
132 * implement it, and password auth is last-resort
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
133 * regardless - keyboard-interactive is more likely
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
134 * to be used anyway. */
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
135 dropbear_close("Your password has expired.");
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
136 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
137 #endif
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
138
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
139 dropbear_exit("Unexpected userauth packet");
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
140 }
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
141
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
142 void recv_msg_userauth_failure() {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
143
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
144 unsigned char * methods = NULL;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
145 unsigned char * tok = NULL;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
146 unsigned int methlen = 0;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
147 unsigned int partial = 0;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
148 unsigned int i = 0;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
149
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 114
diff changeset
150 TRACE(("<- MSG_USERAUTH_FAILURE"))
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 114
diff changeset
151 TRACE(("enter recv_msg_userauth_failure"))
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
152
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
153 if (cli_ses.state != USERAUTH_REQ_SENT) {
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
154 /* Perhaps we should be more fatal? */
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
155 dropbear_exit("Unexpected userauth failure");
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
156 }
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
157
68
eee77ac31ccc cleaning up the pubkey defines
Matt Johnston <matt@ucc.asn.au>
parents: 45
diff changeset
158 #ifdef ENABLE_CLI_PUBKEY_AUTH
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
159 /* If it was a pubkey auth request, we should cross that key
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
160 * off the list. */
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
161 if (cli_ses.lastauthtype == AUTH_TYPE_PUBKEY) {
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
162 cli_pubkeyfail();
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
163 }
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
164 #endif
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
165
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
166 #ifdef ENABLE_CLI_INTERACT_AUTH
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
167 /* If we get a failure message for keyboard interactive without
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
168 * receiving any request info packet, then we don't bother trying
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
169 * keyboard interactive again */
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
170 if (cli_ses.lastauthtype == AUTH_TYPE_INTERACT
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
171 && !cli_ses.interact_request_received) {
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
172 TRACE(("setting auth_interact_failed = 1"))
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
173 cli_ses.auth_interact_failed = 1;
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
174 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
175 #endif
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
176
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
177 cli_ses.lastauthtype = AUTH_TYPE_NONE;
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
178
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
179 methods = buf_getstring(ses.payload, &methlen);
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
180
179
161557a9dde8 * fix longstanding bug with connections being closed on failure to
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
181 partial = buf_getbool(ses.payload);
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
182
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
183 if (partial) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
184 dropbear_log(LOG_INFO, "Authentication partially succeeded, more attempts required");
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
185 } else {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
186 ses.authstate.failcount++;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
187 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
188
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 114
diff changeset
189 TRACE(("Methods (len %d): '%s'", methlen, methods))
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
190
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
191 ses.authstate.authdone=0;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
192 ses.authstate.authtypes=0;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
193
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
194 /* Split with nulls rather than commas */
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
195 for (i = 0; i < methlen; i++) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
196 if (methods[i] == ',') {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
197 methods[i] = '\0';
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
198 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
199 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
200
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
201 tok = methods; /* tok stores the next method we'll compare */
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
202 for (i = 0; i <= methlen; i++) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
203 if (methods[i] == '\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: 114
diff changeset
204 TRACE(("auth method '%s'", tok))
68
eee77ac31ccc cleaning up the pubkey defines
Matt Johnston <matt@ucc.asn.au>
parents: 45
diff changeset
205 #ifdef ENABLE_CLI_PUBKEY_AUTH
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
206 if (strncmp(AUTH_METHOD_PUBKEY, tok,
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
207 AUTH_METHOD_PUBKEY_LEN) == 0) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
208 ses.authstate.authtypes |= AUTH_TYPE_PUBKEY;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
209 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
210 #endif
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
211 #ifdef ENABLE_CLI_INTERACT_AUTH
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
212 if (strncmp(AUTH_METHOD_INTERACT, tok,
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
213 AUTH_METHOD_INTERACT_LEN) == 0) {
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
214 ses.authstate.authtypes |= AUTH_TYPE_INTERACT;
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
215 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
216 #endif
68
eee77ac31ccc cleaning up the pubkey defines
Matt Johnston <matt@ucc.asn.au>
parents: 45
diff changeset
217 #ifdef ENABLE_CLI_PASSWORD_AUTH
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
218 if (strncmp(AUTH_METHOD_PASSWORD, tok,
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
219 AUTH_METHOD_PASSWORD_LEN) == 0) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
220 ses.authstate.authtypes |= AUTH_TYPE_PASSWORD;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
221 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
222 #endif
34
e2a1eaa19f22 Client mostly works up to password auth
Matt Johnston <matt@ucc.asn.au>
parents: 33
diff changeset
223 tok = &methods[i+1]; /* Must make sure we don't use it after the
e2a1eaa19f22 Client mostly works up to password auth
Matt Johnston <matt@ucc.asn.au>
parents: 33
diff changeset
224 last loop, since it'll point to something
e2a1eaa19f22 Client mostly works up to password auth
Matt Johnston <matt@ucc.asn.au>
parents: 33
diff changeset
225 undefined */
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
226 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
227 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
228
114
2be6aa26a8c9 Leak found with MallocDebug - it's kinda useful
Matt Johnston <matt@ucc.asn.au>
parents: 74
diff changeset
229 m_free(methods);
2be6aa26a8c9 Leak found with MallocDebug - it's kinda useful
Matt Johnston <matt@ucc.asn.au>
parents: 74
diff changeset
230
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
231 cli_ses.state = USERAUTH_FAIL_RCVD;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
232
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 114
diff changeset
233 TRACE(("leave recv_msg_userauth_failure"))
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
234 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
235
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
236 void recv_msg_userauth_success() {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 114
diff changeset
237 TRACE(("received msg_userauth_success"))
501
d58c478bd399 Add support for [email protected] delayed compression.
Matt Johnston <matt@ucc.asn.au>
parents: 441
diff changeset
238 /* Note: in delayed-zlib mode, setting authdone here
d58c478bd399 Add support for [email protected] delayed compression.
Matt Johnston <matt@ucc.asn.au>
parents: 441
diff changeset
239 * will enable compression in the transport layer */
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
240 ses.authstate.authdone = 1;
37
0913e2ee3545 we're nearly there yet
Matt Johnston <matt@ucc.asn.au>
parents: 35
diff changeset
241 cli_ses.state = USERAUTH_SUCCESS_RCVD;
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
242 cli_ses.lastauthtype = AUTH_TYPE_NONE;
552
de3653483ac0 - Client auth using an agent's key works. Still need to implement client
Matt Johnston <matt@ucc.asn.au>
parents: 545
diff changeset
243
de3653483ac0 - Client auth using an agent's key works. Still need to implement client
Matt Johnston <matt@ucc.asn.au>
parents: 545
diff changeset
244 #ifdef ENABLE_CLI_PUBKEY_AUTH
de3653483ac0 - Client auth using an agent's key works. Still need to implement client
Matt Johnston <matt@ucc.asn.au>
parents: 545
diff changeset
245 cli_auth_pubkey_cleanup();
de3653483ac0 - Client auth using an agent's key works. Still need to implement client
Matt Johnston <matt@ucc.asn.au>
parents: 545
diff changeset
246 #endif
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
247 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
248
734
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
249 int cli_auth_try() {
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
250
300
baea1d43e7eb Some cleanups/fixes for various TRACE statements
Matt Johnston <matt@ucc.asn.au>
parents: 268
diff changeset
251 int finished = 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: 114
diff changeset
252 TRACE(("enter cli_auth_try"))
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
253
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
254 CHECKCLEARTOWRITE();
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
255
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
256 /* Order to try is pubkey, interactive, password.
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
257 * As soon as "finished" is set for one, we don't do any more. */
68
eee77ac31ccc cleaning up the pubkey defines
Matt Johnston <matt@ucc.asn.au>
parents: 45
diff changeset
258 #ifdef ENABLE_CLI_PUBKEY_AUTH
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
259 if (ses.authstate.authtypes & AUTH_TYPE_PUBKEY) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
260 finished = cli_auth_pubkey();
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
261 cli_ses.lastauthtype = AUTH_TYPE_PUBKEY;
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
262 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
263 #endif
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
264
732
2e5f2bc60e40 Try password before interactive - bit of a hack
Matt Johnston <matt@ucc.asn.au>
parents: 730
diff changeset
265 #ifdef ENABLE_CLI_PASSWORD_AUTH
734
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
266 if (!finished && (ses.authstate.authtypes & AUTH_TYPE_PASSWORD)) {
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
267 if (ses.keys->trans.algo_crypt->cipherdesc == NULL) {
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
268 fprintf(stderr, "Sorry, I won't let you use password auth unencrypted.\n");
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
269 } else {
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
270 cli_auth_password();
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
271 finished = 1;
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
272 cli_ses.lastauthtype = AUTH_TYPE_PASSWORD;
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
273 }
732
2e5f2bc60e40 Try password before interactive - bit of a hack
Matt Johnston <matt@ucc.asn.au>
parents: 730
diff changeset
274 }
2e5f2bc60e40 Try password before interactive - bit of a hack
Matt Johnston <matt@ucc.asn.au>
parents: 730
diff changeset
275 #endif
2e5f2bc60e40 Try password before interactive - bit of a hack
Matt Johnston <matt@ucc.asn.au>
parents: 730
diff changeset
276
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
277 #ifdef ENABLE_CLI_INTERACT_AUTH
734
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
278 if (!finished && (ses.authstate.authtypes & AUTH_TYPE_INTERACT)) {
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
279 if (ses.keys->trans.algo_crypt->cipherdesc == NULL) {
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
280 fprintf(stderr, "Sorry, I won't let you use interactive auth unencrypted.\n");
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
281 } else {
734
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
282 if (!cli_ses.auth_interact_failed) {
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
283 cli_auth_interactive();
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
284 cli_ses.lastauthtype = AUTH_TYPE_INTERACT;
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
285 finished = 1;
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
286 }
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
287 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
288 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
289 #endif
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
290
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
291 TRACE(("cli_auth_try lastauthtype %d", cli_ses.lastauthtype))
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
292
734
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
293 if (finished) {
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
294 TRACE(("leave cli_auth_try success"))
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
295 return DROPBEAR_SUCCESS;
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
296 }
734
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
297 TRACE(("leave cli_auth_try failure"))
619b1ed837fd Be a bit more careful about when we want to use CLI_AUTH_IMMEDIATE
Matt Johnston <matt@ucc.asn.au>
parents: 732
diff changeset
298 return DROPBEAR_FAILURE;
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
299 }
268
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
300
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
301 /* A helper for getpass() that exits if the user cancels. The returned
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
302 * password is statically allocated by getpass() */
334
8f3ec7c104d9 Make the dbclient password prompt more useful
Matt Johnston <matt@ucc.asn.au>
parents: 300
diff changeset
303 char* getpass_or_cancel(char* prompt)
268
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
304 {
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
305 char* password = NULL;
441
fdf06a5a54e4 Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents: 334
diff changeset
306
fdf06a5a54e4 Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents: 334
diff changeset
307 #ifdef DROPBEAR_PASSWORD_ENV
fdf06a5a54e4 Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents: 334
diff changeset
308 /* Password provided in an environment var */
fdf06a5a54e4 Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents: 334
diff changeset
309 password = getenv(DROPBEAR_PASSWORD_ENV);
fdf06a5a54e4 Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents: 334
diff changeset
310 if (password)
fdf06a5a54e4 Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents: 334
diff changeset
311 {
fdf06a5a54e4 Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents: 334
diff changeset
312 return password;
fdf06a5a54e4 Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents: 334
diff changeset
313 }
fdf06a5a54e4 Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents: 334
diff changeset
314 #endif
268
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
315
334
8f3ec7c104d9 Make the dbclient password prompt more useful
Matt Johnston <matt@ucc.asn.au>
parents: 300
diff changeset
316 password = getpass(prompt);
268
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
317
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
318 /* 0x03 is a ctrl-c character in the buffer. */
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
319 if (password == NULL || strchr(password, '\3') != NULL) {
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
320 dropbear_close("Interrupted.");
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
321 }
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
322 return password;
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
323 }