dropbear: cli-auth.c annotate

annotate cli-auth.c @ 1264:a20b6af6f182

merge

author	Matt Johnston <matt@ucc.asn.au>
date	Tue, 15 Mar 2016 23:23:31 +0800
parents	c6346c63281b
children	750ec4ec4cbe

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"))
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 CHECKCLEARTOWRITE();
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 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	46 buf_putstring(ses.writepayload, cli_opts.username,
35 0ad5fb979f42 set the isserver flag (oops) Matt Johnston <matt@ucc.asn.au> parents: 34 diff changeset	47 strlen(cli_opts.username));
1122 aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings Matt Johnston <matt@ucc.asn.au> parents: 1115 diff changeset	48 buf_putstring(ses.writepayload, SSH_SERVICE_CONNECTION,
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49 SSH_SERVICE_CONNECTION_LEN);
1122 aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings Matt Johnston <matt@ucc.asn.au> parents: 1115 diff changeset	50 buf_putstring(ses.writepayload, "none", 4); /* 'none' method */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 encrypt_packet();
883 ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	53
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	54 #ifdef DROPBEAR_CLI_IMMEDIATE_AUTH
894 7032deca6b90 Disable immediate auth for delayed-zlib mode Matt Johnston <matt@ucc.asn.au> parents: 883 diff changeset	55 /* 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	56 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	57 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	58 Race described at
7032deca6b90 Disable immediate auth for delayed-zlib mode Matt Johnston <matt@ucc.asn.au> parents: 883 diff changeset	59 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	60 */
7032deca6b90 Disable immediate auth for delayed-zlib mode Matt Johnston <matt@ucc.asn.au> parents: 883 diff changeset	61 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	62 ses.authstate.authtypes = AUTH_TYPE_PUBKEY;
7032deca6b90 Disable immediate auth for delayed-zlib mode Matt Johnston <matt@ucc.asn.au> parents: 883 diff changeset	63 if (getenv(DROPBEAR_PASSWORD_ENV)) {
7032deca6b90 Disable immediate auth for delayed-zlib mode Matt Johnston <matt@ucc.asn.au> parents: 883 diff changeset	64 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	65 }
7032deca6b90 Disable immediate auth for delayed-zlib mode Matt Johnston <matt@ucc.asn.au> parents: 883 diff changeset	66 if (cli_auth_try() == DROPBEAR_SUCCESS) {
7032deca6b90 Disable immediate auth for delayed-zlib mode Matt Johnston <matt@ucc.asn.au> parents: 883 diff changeset	67 TRACE(("skipped initial none auth query"))
7032deca6b90 Disable immediate auth for delayed-zlib mode Matt Johnston <matt@ucc.asn.au> parents: 883 diff changeset	68 /* 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	69 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	70 }
883 ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	71 }
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	72 #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	73 TRACE(("leave cli_auth_getmethods"))
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	76 void recv_msg_userauth_banner() {
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	77
1115 efb7e545a65e Turn banner, methods and tok local variable into char * Gaël PORTAY <gael.portay@gmail.com> parents: 1094 diff changeset	78 char* banner = NULL;
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	79 unsigned int bannerlen;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	80 unsigned int i, linecount;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	81
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(("enter recv_msg_userauth_banner"))
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	83 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	84 TRACE(("leave recv_msg_userauth_banner: banner after auth done"))
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	85 return;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	86 }
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	87
1122 aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings Matt Johnston <matt@ucc.asn.au> parents: 1115 diff changeset	88 banner = buf_getstring(ses.payload, &bannerlen);
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	89 buf_eatstring(ses.payload); /* The language string */
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	90
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	91 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	92 TRACE(("recv_msg_userauth_banner: bannerlen too long: %d", bannerlen))
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	93 goto out;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	94 }
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 cleantext(banner);
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 /* Limit to 25 lines */
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	99 linecount = 1;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	100 for (i = 0; i < bannerlen; i++) {
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	101 if (banner[i] == '\n') {
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	102 if (linecount >= MAX_BANNER_LINES) {
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	103 banner[i] = '\0';
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	104 break;
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 linecount++;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	107 }
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	108 }
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	109
545 00e619aa2f9a - Print banner to stderr. Probably the right way, and avoids Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	110 fprintf(stderr, "%s\n", banner);
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	111
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	112 out:
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
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	124 #ifdef ENABLE_CLI_PUBKEY_AUTH
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
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	131 #ifdef ENABLE_CLI_INTERACT_AUTH
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
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	138 #ifdef ENABLE_CLI_PASSWORD_AUTH
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 {
68 eee77ac31ccc cleaning up the pubkey defines Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	182 #ifdef ENABLE_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
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	190 #ifdef ENABLE_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))
68 eee77ac31ccc cleaning up the pubkey defines Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	230 #ifdef ENABLE_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
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	236 #ifdef ENABLE_CLI_INTERACT_AUTH
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
68 eee77ac31ccc cleaning up the pubkey defines Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	242 #ifdef ENABLE_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
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	263 TRACE(("received msg_userauth_success"))
501 d58c478bd399 Add support for [email protected] delayed compression. Matt Johnston <matt@ucc.asn.au> parents: 441 diff changeset	264 /* 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	265 * will enable compression in the transport layer */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	266 ses.authstate.authdone = 1;
37 0913e2ee3545 we're nearly there yet Matt Johnston <matt@ucc.asn.au> parents: 35 diff changeset	267 cli_ses.state = USERAUTH_SUCCESS_RCVD;
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	268 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	269
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 545 diff changeset	270 #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	271 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	272 #endif
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	273 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	274
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	275 int cli_auth_try() {
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	276
300 baea1d43e7eb Some cleanups/fixes for various TRACE statements Matt Johnston <matt@ucc.asn.au> parents: 268 diff changeset	277 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	278 TRACE(("enter cli_auth_try"))
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	279
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 CHECKCLEARTOWRITE();
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	282 /* Order to try is pubkey, interactive, password.
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	283 * 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	284 #ifdef ENABLE_CLI_PUBKEY_AUTH
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 if (ses.authstate.authtypes & AUTH_TYPE_PUBKEY) {
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286 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	287 cli_ses.lastauthtype = AUTH_TYPE_PUBKEY;
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	288 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289 #endif
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290
732 2e5f2bc60e40 Try password before interactive - bit of a hack Matt Johnston <matt@ucc.asn.au> parents: 730 diff changeset	291 #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	292 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	293 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	294 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	295 } 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	296 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	297 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	298 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	299 }
732 2e5f2bc60e40 Try password before interactive - bit of a hack Matt Johnston <matt@ucc.asn.au> parents: 730 diff changeset	300 }
2e5f2bc60e40 Try password before interactive - bit of a hack Matt Johnston <matt@ucc.asn.au> parents: 730 diff changeset	301 #endif
2e5f2bc60e40 Try password before interactive - bit of a hack Matt Johnston <matt@ucc.asn.au> parents: 730 diff changeset	302
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	303 #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	304 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	305 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	306 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	307 } 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	308 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	309 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	310 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	311 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	312 }
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	313 }
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	314 }
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	315 #endif
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 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	318
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	319 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	320 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	321 return DROPBEAR_SUCCESS;
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	322 }
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	323 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	324 return DROPBEAR_FAILURE;
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	325 }
268 475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	326
1156 a8f4dade70e5 avoid getpass when not used Mike Frysinger <vapier@gentoo.org> parents: 1122 diff changeset	327 #if defined(ENABLE_CLI_PASSWORD_AUTH) \|\| defined(ENABLE_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	328 /* 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	329 * 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	330 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	331 {
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	332 char* password = NULL;
441 fdf06a5a54e4 Allow reading dbclient password from an environment var Matt Johnston <matt@ucc.asn.au> parents: 334 diff changeset	333
fdf06a5a54e4 Allow reading dbclient password from an environment var Matt Johnston <matt@ucc.asn.au> parents: 334 diff changeset	334 #ifdef DROPBEAR_PASSWORD_ENV
1249 c6346c63281b refactor indentation with hard tab Francois Perrad <francois.perrad@gadz.org> parents: 1156 diff changeset	335 /* Password provided in an environment var */
c6346c63281b refactor indentation with hard tab Francois Perrad <francois.perrad@gadz.org> parents: 1156 diff changeset	336 password = getenv(DROPBEAR_PASSWORD_ENV);
c6346c63281b refactor indentation with hard tab Francois Perrad <francois.perrad@gadz.org> parents: 1156 diff changeset	337 if (password)
c6346c63281b refactor indentation with hard tab Francois Perrad <francois.perrad@gadz.org> parents: 1156 diff changeset	338 {
c6346c63281b refactor indentation with hard tab Francois Perrad <francois.perrad@gadz.org> parents: 1156 diff changeset	339 return password;
c6346c63281b refactor indentation with hard tab Francois Perrad <francois.perrad@gadz.org> parents: 1156 diff changeset	340 }
441 fdf06a5a54e4 Allow reading dbclient password from an environment var Matt Johnston <matt@ucc.asn.au> parents: 334 diff changeset	341 #endif
268 475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	342
334 8f3ec7c104d9 Make the dbclient password prompt more useful Matt Johnston <matt@ucc.asn.au> parents: 300 diff changeset	343 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	344
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	345 /* 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	346 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	347 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	348 }
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	349 return password;
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	350 }
1156 a8f4dade70e5 avoid getpass when not used Mike Frysinger <vapier@gentoo.org> parents: 1122 diff changeset	351 #endif

Mercurial > dropbear

annotate cli-auth.c @ 1264:a20b6af6f182