Mercurial > dropbear
annotate cli-auth.c @ 462:1009980436c2
Actually use ~/.hushlogin rather than ~/hushlogin to ignore motd.
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Fri, 02 Nov 2007 15:03:16 +0000 |
| parents | fdf06a5a54e4 |
| children | d58c478bd399 |
| 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 | 26 #include "includes.h" |
| 27 #include "session.h" | |
| 28 #include "auth.h" | |
| 29 #include "dbutil.h" | |
| 30 #include "buffer.h" | |
| 31 #include "ssh.h" | |
| 32 #include "packet.h" | |
| 33 #include "runopts.h" | |
| 34 | |
| 35 void cli_authinitialise() { | |
| 36 | |
| 37 memset(&ses.authstate, 0, sizeof(ses.authstate)); | |
| 38 } | |
| 39 | |
| 40 | |
| 41 /* Send a "none" auth request to get available methods */ | |
| 42 void cli_auth_getmethods() { | |
| 43 | |
|
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
|
44 TRACE(("enter cli_auth_getmethods")) |
| 33 | 45 |
| 46 CHECKCLEARTOWRITE(); | |
| 47 | |
| 48 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
|
49 buf_putstring(ses.writepayload, cli_opts.username, |
|
0ad5fb979f42
set the isserver flag (oops)
Matt Johnston <matt@ucc.asn.au>
parents:
34
diff
changeset
|
50 strlen(cli_opts.username)); |
| 33 | 51 buf_putstring(ses.writepayload, SSH_SERVICE_CONNECTION, |
| 52 SSH_SERVICE_CONNECTION_LEN); | |
| 53 buf_putstring(ses.writepayload, "none", 4); /* 'none' method */ | |
| 54 | |
| 55 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
|
56 TRACE(("leave cli_auth_getmethods")) |
| 33 | 57 |
| 58 } | |
| 59 | |
| 43 | 60 void recv_msg_userauth_banner() { |
| 61 | |
| 62 unsigned char* banner = NULL; | |
| 63 unsigned int bannerlen; | |
| 64 unsigned int i, linecount; | |
| 65 | |
|
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
|
66 TRACE(("enter recv_msg_userauth_banner")) |
| 43 | 67 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
|
68 TRACE(("leave recv_msg_userauth_banner: banner after auth done")) |
| 43 | 69 return; |
| 70 } | |
| 71 | |
| 72 banner = buf_getstring(ses.payload, &bannerlen); | |
| 73 buf_eatstring(ses.payload); /* The language string */ | |
| 74 | |
| 75 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
|
76 TRACE(("recv_msg_userauth_banner: bannerlen too long: %d", bannerlen)) |
| 43 | 77 goto out; |
| 78 } | |
| 79 | |
| 80 cleantext(banner); | |
| 81 | |
| 82 /* Limit to 25 lines */ | |
| 83 linecount = 1; | |
| 84 for (i = 0; i < bannerlen; i++) { | |
| 85 if (banner[i] == '\n') { | |
| 86 if (linecount >= MAX_BANNER_LINES) { | |
| 87 banner[i] = '\0'; | |
| 88 break; | |
| 89 } | |
| 90 linecount++; | |
| 91 } | |
| 92 } | |
| 93 | |
| 94 printf("%s\n", banner); | |
| 95 | |
| 96 out: | |
| 97 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
|
98 TRACE(("leave recv_msg_userauth_banner")) |
| 43 | 99 } |
| 100 | |
|
249
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
101 /* This handles the message-specific types which |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
102 * all have a value of 60. These are |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
103 * SSH_MSG_USERAUTH_PASSWD_CHANGEREQ, |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
104 * SSH_MSG_USERAUTH_PK_OK, & |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
105 * SSH_MSG_USERAUTH_INFO_REQUEST. */ |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
106 void recv_msg_userauth_specific_60() { |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
107 |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
108 #ifdef ENABLE_CLI_PUBKEY_AUTH |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
109 if (cli_ses.lastauthtype == AUTH_TYPE_PUBKEY) { |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
110 recv_msg_userauth_pk_ok(); |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
111 return; |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
112 } |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
113 #endif |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
114 |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
115 #ifdef ENABLE_CLI_INTERACT_AUTH |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
116 if (cli_ses.lastauthtype == AUTH_TYPE_INTERACT) { |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
117 recv_msg_userauth_info_request(); |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
118 return; |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
119 } |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
120 #endif |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
121 |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
122 #ifdef ENABLE_CLI_PASSWORD_AUTH |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
123 if (cli_ses.lastauthtype == AUTH_TYPE_PASSWORD) { |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
124 /* Eventually there could be proper password-changing |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
125 * support. However currently few servers seem to |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
126 * implement it, and password auth is last-resort |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
127 * regardless - keyboard-interactive is more likely |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
128 * to be used anyway. */ |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
129 dropbear_close("Your password has expired."); |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
130 } |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
131 #endif |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
132 |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
133 dropbear_exit("Unexpected userauth packet"); |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
134 } |
| 43 | 135 |
| 33 | 136 void recv_msg_userauth_failure() { |
| 137 | |
| 138 unsigned char * methods = NULL; | |
| 139 unsigned char * tok = NULL; | |
| 140 unsigned int methlen = 0; | |
| 141 unsigned int partial = 0; | |
| 142 unsigned int i = 0; | |
| 143 | |
|
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
|
144 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
|
145 TRACE(("enter recv_msg_userauth_failure")) |
| 33 | 146 |
|
45
9ee8996a375f
Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents:
43
diff
changeset
|
147 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
|
148 /* Perhaps we should be more fatal? */ |
|
249
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
149 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
|
150 } |
|
9ee8996a375f
Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents:
43
diff
changeset
|
151 |
|
68
eee77ac31ccc
cleaning up the pubkey defines
Matt Johnston <matt@ucc.asn.au>
parents:
45
diff
changeset
|
152 #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
|
153 /* 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
|
154 * 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
|
155 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
|
156 cli_pubkeyfail(); |
|
9ee8996a375f
Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents:
43
diff
changeset
|
157 } |
|
9ee8996a375f
Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents:
43
diff
changeset
|
158 #endif |
|
9ee8996a375f
Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents:
43
diff
changeset
|
159 |
|
249
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
160 #ifdef ENABLE_CLI_INTERACT_AUTH |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
161 /* 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
|
162 * 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
|
163 * keyboard interactive again */ |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
164 if (cli_ses.lastauthtype == AUTH_TYPE_INTERACT |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
165 && !cli_ses.interact_request_received) { |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
166 TRACE(("setting auth_interact_failed = 1")) |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
167 cli_ses.auth_interact_failed = 1; |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
168 } |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
169 #endif |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
170 |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
171 cli_ses.lastauthtype = AUTH_TYPE_NONE; |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
172 |
| 33 | 173 methods = buf_getstring(ses.payload, &methlen); |
| 174 | |
|
179
161557a9dde8
* fix longstanding bug with connections being closed on failure to
Matt Johnston <matt@ucc.asn.au>
parents:
165
diff
changeset
|
175 partial = buf_getbool(ses.payload); |
| 33 | 176 |
| 177 if (partial) { | |
| 178 dropbear_log(LOG_INFO, "Authentication partially succeeded, more attempts required"); | |
| 179 } else { | |
| 180 ses.authstate.failcount++; | |
| 181 } | |
| 182 | |
|
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
|
183 TRACE(("Methods (len %d): '%s'", methlen, methods)) |
| 33 | 184 |
| 185 ses.authstate.authdone=0; | |
| 186 ses.authstate.authtypes=0; | |
| 187 | |
| 188 /* Split with nulls rather than commas */ | |
| 189 for (i = 0; i < methlen; i++) { | |
| 190 if (methods[i] == ',') { | |
| 191 methods[i] = '\0'; | |
| 192 } | |
| 193 } | |
| 194 | |
| 195 tok = methods; /* tok stores the next method we'll compare */ | |
| 196 for (i = 0; i <= methlen; i++) { | |
| 197 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
|
198 TRACE(("auth method '%s'", tok)) |
|
68
eee77ac31ccc
cleaning up the pubkey defines
Matt Johnston <matt@ucc.asn.au>
parents:
45
diff
changeset
|
199 #ifdef ENABLE_CLI_PUBKEY_AUTH |
| 33 | 200 if (strncmp(AUTH_METHOD_PUBKEY, tok, |
| 201 AUTH_METHOD_PUBKEY_LEN) == 0) { | |
| 202 ses.authstate.authtypes |= AUTH_TYPE_PUBKEY; | |
| 203 } | |
| 204 #endif | |
|
249
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
205 #ifdef ENABLE_CLI_INTERACT_AUTH |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
206 if (strncmp(AUTH_METHOD_INTERACT, tok, |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
207 AUTH_METHOD_INTERACT_LEN) == 0) { |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
208 ses.authstate.authtypes |= AUTH_TYPE_INTERACT; |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
209 } |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
210 #endif |
|
68
eee77ac31ccc
cleaning up the pubkey defines
Matt Johnston <matt@ucc.asn.au>
parents:
45
diff
changeset
|
211 #ifdef ENABLE_CLI_PASSWORD_AUTH |
| 33 | 212 if (strncmp(AUTH_METHOD_PASSWORD, tok, |
| 213 AUTH_METHOD_PASSWORD_LEN) == 0) { | |
| 214 ses.authstate.authtypes |= AUTH_TYPE_PASSWORD; | |
| 215 } | |
| 216 #endif | |
|
34
e2a1eaa19f22
Client mostly works up to password auth
Matt Johnston <matt@ucc.asn.au>
parents:
33
diff
changeset
|
217 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
|
218 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
|
219 undefined */ |
| 33 | 220 } |
| 221 } | |
| 222 | |
|
114
2be6aa26a8c9
Leak found with MallocDebug - it's kinda useful
Matt Johnston <matt@ucc.asn.au>
parents:
74
diff
changeset
|
223 m_free(methods); |
|
2be6aa26a8c9
Leak found with MallocDebug - it's kinda useful
Matt Johnston <matt@ucc.asn.au>
parents:
74
diff
changeset
|
224 |
| 33 | 225 cli_ses.state = USERAUTH_FAIL_RCVD; |
| 226 | |
|
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
|
227 TRACE(("leave recv_msg_userauth_failure")) |
| 33 | 228 } |
| 229 | |
| 230 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
|
231 TRACE(("received msg_userauth_success")) |
| 33 | 232 ses.authstate.authdone = 1; |
| 37 | 233 cli_ses.state = USERAUTH_SUCCESS_RCVD; |
|
249
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
234 cli_ses.lastauthtype = AUTH_TYPE_NONE; |
| 33 | 235 } |
| 236 | |
| 237 void cli_auth_try() { | |
| 238 | |
|
300
baea1d43e7eb
Some cleanups/fixes for various TRACE statements
Matt Johnston <matt@ucc.asn.au>
parents:
268
diff
changeset
|
239 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
|
240 TRACE(("enter cli_auth_try")) |
| 33 | 241 |
| 242 CHECKCLEARTOWRITE(); | |
| 243 | |
|
249
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
244 /* Order to try is pubkey, interactive, password. |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
245 * 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
|
246 #ifdef ENABLE_CLI_PUBKEY_AUTH |
| 33 | 247 if (ses.authstate.authtypes & AUTH_TYPE_PUBKEY) { |
| 248 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
|
249 cli_ses.lastauthtype = AUTH_TYPE_PUBKEY; |
| 33 | 250 } |
| 251 #endif | |
| 252 | |
|
249
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
253 #ifdef ENABLE_CLI_INTERACT_AUTH |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
254 if (!finished && ses.authstate.authtypes & AUTH_TYPE_INTERACT) { |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
255 if (cli_ses.auth_interact_failed) { |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
256 finished = 0; |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
257 } else { |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
258 cli_auth_interactive(); |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
259 cli_ses.lastauthtype = AUTH_TYPE_INTERACT; |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
260 finished = 1; |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
261 } |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
262 } |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
263 #endif |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
264 |
|
68
eee77ac31ccc
cleaning up the pubkey defines
Matt Johnston <matt@ucc.asn.au>
parents:
45
diff
changeset
|
265 #ifdef ENABLE_CLI_PASSWORD_AUTH |
| 33 | 266 if (!finished && ses.authstate.authtypes & AUTH_TYPE_PASSWORD) { |
|
249
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
267 cli_auth_password(); |
|
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
268 finished = 1; |
|
45
9ee8996a375f
Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents:
43
diff
changeset
|
269 cli_ses.lastauthtype = AUTH_TYPE_PASSWORD; |
| 33 | 270 } |
| 271 #endif | |
| 272 | |
|
249
efbaf6b03837
added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents:
179
diff
changeset
|
273 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
|
274 |
| 33 | 275 if (!finished) { |
| 276 dropbear_exit("No auth methods could be used."); | |
| 277 } | |
| 278 | |
|
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
|
279 TRACE(("leave cli_auth_try")) |
| 33 | 280 } |
|
268
475a818dd6e7
Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents:
249
diff
changeset
|
281 |
|
475a818dd6e7
Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents:
249
diff
changeset
|
282 /* 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
|
283 * 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
|
284 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
|
285 { |
|
475a818dd6e7
Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents:
249
diff
changeset
|
286 char* password = NULL; |
|
441
fdf06a5a54e4
Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents:
334
diff
changeset
|
287 |
|
fdf06a5a54e4
Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents:
334
diff
changeset
|
288 #ifdef DROPBEAR_PASSWORD_ENV |
|
fdf06a5a54e4
Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents:
334
diff
changeset
|
289 /* 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
|
290 password = getenv(DROPBEAR_PASSWORD_ENV); |
|
fdf06a5a54e4
Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents:
334
diff
changeset
|
291 if (password) |
|
fdf06a5a54e4
Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents:
334
diff
changeset
|
292 { |
|
fdf06a5a54e4
Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents:
334
diff
changeset
|
293 return password; |
|
fdf06a5a54e4
Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents:
334
diff
changeset
|
294 } |
|
fdf06a5a54e4
Allow reading dbclient password from an environment var
Matt Johnston <matt@ucc.asn.au>
parents:
334
diff
changeset
|
295 #endif |
|
268
475a818dd6e7
Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents:
249
diff
changeset
|
296 |
|
334
8f3ec7c104d9
Make the dbclient password prompt more useful
Matt Johnston <matt@ucc.asn.au>
parents:
300
diff
changeset
|
297 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
|
298 |
|
475a818dd6e7
Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents:
249
diff
changeset
|
299 /* 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
|
300 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
|
301 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
|
302 } |
|
475a818dd6e7
Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents:
249
diff
changeset
|
303 return password; |
|
475a818dd6e7
Cancel a dbclient password prompt if the user presses ctrl-c.
Matt Johnston <matt@ucc.asn.au>
parents:
249
diff
changeset
|
304 } |