Mercurial > dropbear

annotate cli-auth.c @ 1902:4a6725ac957c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Revert "Don't include sk keys at all in KEX list" This reverts git commit f972813ecdc7bb981d25b5a63638bd158f1c8e72. The sk algorithms need to remain in the sigalgs list so that they are included in the server-sig-algs ext-info message sent by the server. RFC8308 for server-sig-algs requires that all algorithms are listed (though OpenSSH client 8.4p1 tested doesn't require that)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 24 Mar 2022 13:42:08 +0800
parents 62e4baa059c3
children 334b742fdeb8
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 /* Send a "none" auth request to get available methods */
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
36 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
37 TRACE(("enter cli_auth_getmethods"))
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
38 CHECKCLEARTOWRITE();
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
39 buf_putbyte(ses.writepayload, SSH_MSG_USERAUTH_REQUEST);
1122
aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings
Matt Johnston <matt@ucc.asn.au>
parents: 1115
diff changeset
40 buf_putstring(ses.writepayload, cli_opts.username,
35
0ad5fb979f42 set the isserver flag (oops)
Matt Johnston <matt@ucc.asn.au>
parents: 34
diff changeset
41 strlen(cli_opts.username));
1122
aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings
Matt Johnston <matt@ucc.asn.au>
parents: 1115
diff changeset
42 buf_putstring(ses.writepayload, SSH_SERVICE_CONNECTION,
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
43 SSH_SERVICE_CONNECTION_LEN);
1122
aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings
Matt Johnston <matt@ucc.asn.au>
parents: 1115
diff changeset
44 buf_putstring(ses.writepayload, "none", 4); /* 'none' method */
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
45
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
46 encrypt_packet();
883
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
47
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
48 #if DROPBEAR_CLI_IMMEDIATE_AUTH
894
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
49 /* We can't haven't two auth requests in-flight with delayed zlib mode
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
50 since if the first one succeeds then the remote side will
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
51 expect the second one to be compressed.
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
52 Race described at
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
53 http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/zlib-openssh.html
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
54 */
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
55 if (ses.keys->trans.algo_comp != DROPBEAR_COMP_ZLIB_DELAY) {
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
56 ses.authstate.authtypes = AUTH_TYPE_PUBKEY;
1514
6c16a05023aa rename some options and move some to sysoptions.h
Matt Johnston <matt@ucc.asn.au>
parents: 1499
diff changeset
57 #if DROPBEAR_USE_PASSWORD_ENV
894
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
58 if (getenv(DROPBEAR_PASSWORD_ENV)) {
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
59 ses.authstate.authtypes |= AUTH_TYPE_PASSWORD | AUTH_TYPE_INTERACT;
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
60 }
1499
2d450c1056e3 options: Complete the transition to numeric toggles (`#if')
Michael Witten <mfwitten@gmail.com>
parents: 1459
diff changeset
61 #endif
894
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
62 if (cli_auth_try() == DROPBEAR_SUCCESS) {
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
63 TRACE(("skipped initial none auth query"))
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
64 /* Note that there will be two auth responses in-flight */
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
65 cli_ses.ignore_next_auth_response = 1;
7032deca6b90 Disable immediate auth for delayed-zlib mode
Matt Johnston <matt@ucc.asn.au>
parents: 883
diff changeset
66 }
883
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
67 }
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
68 #endif
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
69 TRACE(("leave cli_auth_getmethods"))
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
70 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
71
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
72 void recv_msg_userauth_banner() {
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
73
1115
efb7e545a65e Turn banner, methods and tok local variable into char *
Gaël PORTAY <gael.portay@gmail.com>
parents: 1094
diff changeset
74 char* banner = NULL;
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
75 unsigned int bannerlen;
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
76 unsigned int i, linecount;
1296
6959c88c8f13 message about truncated banner
Matt Johnston <matt@ucc.asn.au>
parents: 1295
diff changeset
77 int truncated = 0;
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
78
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
79 TRACE(("enter recv_msg_userauth_banner"))
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
80 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
81 TRACE(("leave recv_msg_userauth_banner: banner after auth done"))
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
82 return;
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
83 }
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
84
1122
aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings
Matt Johnston <matt@ucc.asn.au>
parents: 1115
diff changeset
85 banner = buf_getstring(ses.payload, &bannerlen);
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
86 buf_eatstring(ses.payload); /* The language string */
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
87
1894
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
88 if (bannerlen > MAX_BANNER_SIZE) {
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
89 TRACE(("recv_msg_userauth_banner: bannerlen too long: %d", bannerlen))
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
90 truncated = 1;
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
91 } else {
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
92 cleantext(banner);
1296
6959c88c8f13 message about truncated banner
Matt Johnston <matt@ucc.asn.au>
parents: 1295
diff changeset
93
1894
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
94 /* Limit to 24 lines */
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
95 linecount = 1;
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
96 for (i = 0; i < bannerlen; i++) {
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
97 if (banner[i] == '\n') {
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
98 if (linecount >= MAX_BANNER_LINES) {
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
99 banner[i] = '\0';
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
100 truncated = 1;
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
101 break;
1296
6959c88c8f13 message about truncated banner
Matt Johnston <matt@ucc.asn.au>
parents: 1295
diff changeset
102 }
1894
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
103 linecount++;
1296
6959c88c8f13 message about truncated banner
Matt Johnston <matt@ucc.asn.au>
parents: 1295
diff changeset
104 }
6959c88c8f13 message about truncated banner
Matt Johnston <matt@ucc.asn.au>
parents: 1295
diff changeset
105 }
1894
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
106 fprintf(stderr, "%s\n", banner);
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
107 }
1878
d512da7b1198 only show banner when cli_opts.quiet is not set
HansH111 <hans@atbas.org>
parents: 1821
diff changeset
108
1894
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
109 if (truncated) {
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
110 fprintf(stderr, "[Banner from the server is too long]\n");
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
111 }
1894
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
112
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
113 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
114 TRACE(("leave recv_msg_userauth_banner"))
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
115 }
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
116
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
117 /* This handles the message-specific types which
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
118 * all have a value of 60. These are
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
119 * SSH_MSG_USERAUTH_PASSWD_CHANGEREQ,
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
120 * SSH_MSG_USERAUTH_PK_OK, &
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
121 * SSH_MSG_USERAUTH_INFO_REQUEST. */
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
122 void recv_msg_userauth_specific_60() {
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
123
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
124 #if DROPBEAR_CLI_PUBKEY_AUTH
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
125 if (cli_ses.lastauthtype == AUTH_TYPE_PUBKEY) {
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
126 recv_msg_userauth_pk_ok();
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
127 return;
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
128 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
129 #endif
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
130
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
131 #if DROPBEAR_CLI_INTERACT_AUTH
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
132 if (cli_ses.lastauthtype == AUTH_TYPE_INTERACT) {
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
133 recv_msg_userauth_info_request();
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
134 return;
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
135 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
136 #endif
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
137
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
138 #if DROPBEAR_CLI_PASSWORD_AUTH
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
139 if (cli_ses.lastauthtype == AUTH_TYPE_PASSWORD) {
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
140 /* Eventually there could be proper password-changing
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
141 * support. However currently few servers seem to
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
142 * implement it, and password auth is last-resort
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
143 * regardless - keyboard-interactive is more likely
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
144 * to be used anyway. */
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
145 dropbear_close("Your password has expired.");
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
146 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
147 #endif
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
148
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
149 dropbear_exit("Unexpected userauth packet");
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
150 }
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
151
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
152 void recv_msg_userauth_failure() {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
153
1115
efb7e545a65e Turn banner, methods and tok local variable into char *
Gaël PORTAY <gael.portay@gmail.com>
parents: 1094
diff changeset
154 char * methods = NULL;
efb7e545a65e Turn banner, methods and tok local variable into char *
Gaël PORTAY <gael.portay@gmail.com>
parents: 1094
diff changeset
155 char * tok = NULL;
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
156 unsigned int methlen = 0;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
157 unsigned int partial = 0;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
158 unsigned int i = 0;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
159
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
160 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
161 TRACE(("enter recv_msg_userauth_failure"))
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
162
883
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
163 if (ses.authstate.authdone) {
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
164 TRACE(("leave recv_msg_userauth_failure, already authdone."))
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
165 return;
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
166 }
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
167
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
168 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
169 /* Perhaps we should be more fatal? */
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
170 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
171 }
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
172
883
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
173 /* When DROPBEAR_CLI_IMMEDIATE_AUTH is set there will be an initial response for
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
174 the "none" auth request, and then a response to the immediate auth request.
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
175 We need to be careful handling them. */
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
176 if (cli_ses.ignore_next_auth_response) {
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
177 cli_ses.state = USERAUTH_REQ_SENT;
931
ac340d3e452e Fix pubkey auth if the first key presented fails (infinite loop of
Matt Johnston <matt@ucc.asn.au>
parents: 894
diff changeset
178 cli_ses.ignore_next_auth_response = 0;
ac340d3e452e Fix pubkey auth if the first key presented fails (infinite loop of
Matt Johnston <matt@ucc.asn.au>
parents: 894
diff changeset
179 TRACE(("leave recv_msg_userauth_failure, ignored response, state set to USERAUTH_REQ_SENT"));
ac340d3e452e Fix pubkey auth if the first key presented fails (infinite loop of
Matt Johnston <matt@ucc.asn.au>
parents: 894
diff changeset
180 return;
883
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
181 } else {
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
182 #if DROPBEAR_CLI_PUBKEY_AUTH
883
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
183 /* If it was a pubkey auth request, we should cross that key
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
184 * off the list. */
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
185 if (cli_ses.lastauthtype == AUTH_TYPE_PUBKEY) {
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
186 cli_pubkeyfail();
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
187 }
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
188 #endif
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
189
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
190 #if DROPBEAR_CLI_INTERACT_AUTH
883
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
191 /* If we get a failure message for keyboard interactive without
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
192 * receiving any request info packet, then we don't bother trying
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
193 * keyboard interactive again */
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
194 if (cli_ses.lastauthtype == AUTH_TYPE_INTERACT
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
195 && !cli_ses.interact_request_received) {
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
196 TRACE(("setting auth_interact_failed = 1"))
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
197 cli_ses.auth_interact_failed = 1;
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
198 }
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
199 #endif
931
ac340d3e452e Fix pubkey auth if the first key presented fails (infinite loop of
Matt Johnston <matt@ucc.asn.au>
parents: 894
diff changeset
200 cli_ses.state = USERAUTH_FAIL_RCVD;
ac340d3e452e Fix pubkey auth if the first key presented fails (infinite loop of
Matt Johnston <matt@ucc.asn.au>
parents: 894
diff changeset
201 cli_ses.lastauthtype = AUTH_TYPE_NONE;
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
202 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
203
1122
aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings
Matt Johnston <matt@ucc.asn.au>
parents: 1115
diff changeset
204 methods = buf_getstring(ses.payload, &methlen);
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
205
179
161557a9dde8 * fix longstanding bug with connections being closed on failure to
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
206 partial = buf_getbool(ses.payload);
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
207
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
208 if (partial) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
209 dropbear_log(LOG_INFO, "Authentication partially succeeded, more attempts required");
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
210 } else {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
211 ses.authstate.failcount++;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
212 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
213
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
214 TRACE(("Methods (len %d): '%s'", methlen, methods))
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
215
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
216 ses.authstate.authdone=0;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
217 ses.authstate.authtypes=0;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
218
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
219 /* Split with nulls rather than commas */
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
220 for (i = 0; i < methlen; i++) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
221 if (methods[i] == ',') {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
222 methods[i] = '\0';
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
223 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
224 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
225
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
226 tok = methods; /* tok stores the next method we'll compare */
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
227 for (i = 0; i <= methlen; i++) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
228 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
229 TRACE(("auth method '%s'", tok))
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
230 #if DROPBEAR_CLI_PUBKEY_AUTH
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
231 if (strncmp(AUTH_METHOD_PUBKEY, tok,
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
232 AUTH_METHOD_PUBKEY_LEN) == 0) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
233 ses.authstate.authtypes |= AUTH_TYPE_PUBKEY;
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 #endif
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
236 #if DROPBEAR_CLI_INTERACT_AUTH
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
237 if (strncmp(AUTH_METHOD_INTERACT, tok,
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
238 AUTH_METHOD_INTERACT_LEN) == 0) {
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
239 ses.authstate.authtypes |= AUTH_TYPE_INTERACT;
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
240 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
241 #endif
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
242 #if DROPBEAR_CLI_PASSWORD_AUTH
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
243 if (strncmp(AUTH_METHOD_PASSWORD, tok,
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
244 AUTH_METHOD_PASSWORD_LEN) == 0) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
245 ses.authstate.authtypes |= AUTH_TYPE_PASSWORD;
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
246 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
247 #endif
34
e2a1eaa19f22 Client mostly works up to password auth
Matt Johnston <matt@ucc.asn.au>
parents: 33
diff changeset
248 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
249 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
250 undefined */
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
251 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
252 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
253
114
2be6aa26a8c9 Leak found with MallocDebug - it's kinda useful
Matt Johnston <matt@ucc.asn.au>
parents: 74
diff changeset
254 m_free(methods);
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
255
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
256 TRACE(("leave recv_msg_userauth_failure"))
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
257 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
258
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
259 void recv_msg_userauth_success() {
883
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
260 /* This function can validly get called multiple times
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
261 if DROPBEAR_CLI_IMMEDIATE_AUTH is set */
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default
Matt Johnston <matt@ucc.asn.au>
parents: 734
diff changeset
262
1894
62e4baa059c3 changed TRACE to DEBUG1 for dbclient
HansH111 <hans@atbas.org>
parents: 1878
diff changeset
263 DEBUG1(("received msg_userauth_success"))
1821
df8d8ec1801c added option to disable trivial auth methods (#128)
Manfred Kaiser <37737811+manfred-kaiser@users.noreply.github.com>
parents: 1781
diff changeset
264 if (cli_opts.disable_trivial_auth && cli_ses.is_trivial_auth) {
df8d8ec1801c added option to disable trivial auth methods (#128)
Manfred Kaiser <37737811+manfred-kaiser@users.noreply.github.com>
parents: 1781
diff changeset
265 dropbear_exit("trivial authentication not allowed");
df8d8ec1801c added option to disable trivial auth methods (#128)
Manfred Kaiser <37737811+manfred-kaiser@users.noreply.github.com>
parents: 1781
diff changeset
266 }
501
d58c478bd399 Add support for [email protected] delayed compression.
Matt Johnston <matt@ucc.asn.au>
parents: 441
diff changeset
267 /* 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
268 * will enable compression in the transport layer */
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
269 ses.authstate.authdone = 1;
37
0913e2ee3545 we're nearly there yet
Matt Johnston <matt@ucc.asn.au>
parents: 35
diff changeset
270 cli_ses.state = USERAUTH_SUCCESS_RCVD;
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
271 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
272
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
273 #if DROPBEAR_CLI_PUBKEY_AUTH
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
274 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
275 #endif
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
276 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
277
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 int cli_auth_try() {
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
279
300
baea1d43e7eb Some cleanups/fixes for various TRACE statements
Matt Johnston <matt@ucc.asn.au>
parents: 268
diff changeset
280 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
281 TRACE(("enter cli_auth_try"))
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
282
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
283 CHECKCLEARTOWRITE();
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
284
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
285 /* Order to try is pubkey, interactive, password.
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
286 * As soon as "finished" is set for one, we don't do any more. */
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
287 #if DROPBEAR_CLI_PUBKEY_AUTH
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
288 if (ses.authstate.authtypes & AUTH_TYPE_PUBKEY) {
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
289 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
290 cli_ses.lastauthtype = AUTH_TYPE_PUBKEY;
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
291 }
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
292 #endif
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
293
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
294 #if DROPBEAR_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
295 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
296 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
297 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
298 } 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
299 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
300 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
301 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
302 }
732
2e5f2bc60e40 Try password before interactive - bit of a hack
Matt Johnston <matt@ucc.asn.au>
parents: 730
diff changeset
303 }
2e5f2bc60e40 Try password before interactive - bit of a hack
Matt Johnston <matt@ucc.asn.au>
parents: 730
diff changeset
304 #endif
2e5f2bc60e40 Try password before interactive - bit of a hack
Matt Johnston <matt@ucc.asn.au>
parents: 730
diff changeset
305
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
306 #if DROPBEAR_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
307 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
308 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
309 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
310 } 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
311 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
312 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
313 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
314 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
315 }
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
316 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
317 }
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
318 #endif
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
319
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
320 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
321
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
322 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
323 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
324 return DROPBEAR_SUCCESS;
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
325 }
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
326 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
327 return DROPBEAR_FAILURE;
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
328 }
268
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
329
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1249
diff changeset
330 #if DROPBEAR_CLI_PASSWORD_AUTH || DROPBEAR_CLI_INTERACT_AUTH
268
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
331 /* 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
332 * password is statically allocated by getpass() */
1459
06d52bcb8094 Pointer parameter could be declared as pointing to const
Francois Perrad <francois.perrad@gadz.org>
parents: 1296
diff changeset
333 char* getpass_or_cancel(const 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
334 {
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
335 char* password = NULL;
441
fdf06a5a54e4 Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents: 334
diff changeset
336
1514
6c16a05023aa rename some options and move some to sysoptions.h
Matt Johnston <matt@ucc.asn.au>
parents: 1499
diff changeset
337 #if DROPBEAR_USE_PASSWORD_ENV
1249
c6346c63281b refactor indentation with hard tab
Francois Perrad <francois.perrad@gadz.org>
parents: 1156
diff changeset
338 /* Password provided in an environment var */
c6346c63281b refactor indentation with hard tab
Francois Perrad <francois.perrad@gadz.org>
parents: 1156
diff changeset
339 password = getenv(DROPBEAR_PASSWORD_ENV);
c6346c63281b refactor indentation with hard tab
Francois Perrad <francois.perrad@gadz.org>
parents: 1156
diff changeset
340 if (password)
c6346c63281b refactor indentation with hard tab
Francois Perrad <francois.perrad@gadz.org>
parents: 1156
diff changeset
341 {
c6346c63281b refactor indentation with hard tab
Francois Perrad <francois.perrad@gadz.org>
parents: 1156
diff changeset
342 return password;
c6346c63281b refactor indentation with hard tab
Francois Perrad <francois.perrad@gadz.org>
parents: 1156
diff changeset
343 }
441
fdf06a5a54e4 Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents: 334
diff changeset
344 #endif
268
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
345
334
8f3ec7c104d9 Make the dbclient password prompt more useful
Matt Johnston <matt@ucc.asn.au>
parents: 300
diff changeset
346 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
347
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
348 /* 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
349 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
350 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
351 }
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
352 return password;
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents: 249
diff changeset
353 }
1156
a8f4dade70e5 avoid getpass when not used
Mike Frysinger <vapier@gentoo.org>
parents: 1122
diff changeset
354 #endif