dropbear: cli-auth.c annotate

annotate cli-auth.c @ 884:dd0bd9231fc2

Forgot to save the change

author	Matt Johnston <matt@ucc.asn.au>
date	Fri, 17 Jan 2014 21:42:32 +0800
parents	ff597bf2cfb0
children	7032deca6b90

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);
35 0ad5fb979f42 set the isserver flag (oops) Matt Johnston <matt@ucc.asn.au> parents: 34 diff changeset	46 buf_putstring(ses.writepayload, cli_opts.username,
0ad5fb979f42 set the isserver flag (oops) Matt Johnston <matt@ucc.asn.au> parents: 34 diff changeset	47 strlen(cli_opts.username));
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 buf_putstring(ses.writepayload, SSH_SERVICE_CONNECTION,
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49 SSH_SERVICE_CONNECTION_LEN);
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50 buf_putstring(ses.writepayload, "none", 4); /* 'none' method */
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
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	55 ses.authstate.authtypes = AUTH_TYPE_PUBKEY;
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	56 if (getenv(DROPBEAR_PASSWORD_ENV)) {
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	57 ses.authstate.authtypes \|= AUTH_TYPE_PASSWORD \| AUTH_TYPE_INTERACT;
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	58 }
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	59 if (cli_auth_try() == DROPBEAR_SUCCESS) {
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	60 TRACE(("skipped initial none auth query"))
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	61 /* Note that there will be two auth responses in-flight */
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	62 cli_ses.ignore_next_auth_response = 1;
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	63 }
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	64 #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	65 TRACE(("leave cli_auth_getmethods"))
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	68 void recv_msg_userauth_banner() {
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	69
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	70 unsigned char* banner = NULL;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	71 unsigned int bannerlen;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	72 unsigned int i, linecount;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	73
165 0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place Matt Johnston <matt@ucc.asn.au> parents: 114 diff changeset	74 TRACE(("enter recv_msg_userauth_banner"))
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	75 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	76 TRACE(("leave recv_msg_userauth_banner: banner after auth done"))
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	77 return;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	78 }
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	79
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	80 banner = buf_getstring(ses.payload, &bannerlen);
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	81 buf_eatstring(ses.payload); /* The language string */
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	82
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	83 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	84 TRACE(("recv_msg_userauth_banner: bannerlen too long: %d", bannerlen))
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	85 goto out;
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
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	88 cleantext(banner);
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	89
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	90 /* Limit to 25 lines */
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	91 linecount = 1;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	92 for (i = 0; i < bannerlen; i++) {
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	93 if (banner[i] == '\n') {
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	94 if (linecount >= MAX_BANNER_LINES) {
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	95 banner[i] = '\0';
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	96 break;
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 linecount++;
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	99 }
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	100 }
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	101
545 00e619aa2f9a - Print banner to stderr. Probably the right way, and avoids Matt Johnston <matt@ucc.asn.au> parents: 501 diff changeset	102 fprintf(stderr, "%s\n", banner);
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	103
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	104 out:
942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	105 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	106 TRACE(("leave recv_msg_userauth_banner"))
43 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
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	109 /* This handles the message-specific types which
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	110 * all have a value of 60. These are
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	111 * SSH_MSG_USERAUTH_PASSWD_CHANGEREQ,
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	112 * SSH_MSG_USERAUTH_PK_OK, &
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	113 * SSH_MSG_USERAUTH_INFO_REQUEST. */
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	114 void recv_msg_userauth_specific_60() {
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	115
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	116 #ifdef ENABLE_CLI_PUBKEY_AUTH
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	117 if (cli_ses.lastauthtype == AUTH_TYPE_PUBKEY) {
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	118 recv_msg_userauth_pk_ok();
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	119 return;
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	120 }
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	121 #endif
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	122
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	123 #ifdef ENABLE_CLI_INTERACT_AUTH
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	124 if (cli_ses.lastauthtype == AUTH_TYPE_INTERACT) {
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	125 recv_msg_userauth_info_request();
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	126 return;
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	127 }
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	128 #endif
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	129
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	130 #ifdef ENABLE_CLI_PASSWORD_AUTH
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	131 if (cli_ses.lastauthtype == AUTH_TYPE_PASSWORD) {
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	132 /* Eventually there could be proper password-changing
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	133 * support. However currently few servers seem to
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	134 * implement it, and password auth is last-resort
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	135 * regardless - keyboard-interactive is more likely
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	136 * to be used anyway. */
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	137 dropbear_close("Your password has expired.");
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	138 }
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	139 #endif
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	140
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	141 dropbear_exit("Unexpected userauth packet");
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	142 }
43 942b22d7dd1c Banner printing Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	143
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 void recv_msg_userauth_failure() {
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146 unsigned char * methods = NULL;
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147 unsigned char * tok = NULL;
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 unsigned int methlen = 0;
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 unsigned int partial = 0;
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150 unsigned int i = 0;
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151
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	152 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	153 TRACE(("enter recv_msg_userauth_failure"))
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154
883 ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	155 if (ses.authstate.authdone) {
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	156 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	157 return;
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	158 }
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	159
45 9ee8996a375f Pubkey auth is mostly there for the client. Something strange with Matt Johnston <matt@ucc.asn.au> parents: 43 diff changeset	160 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	161 /* Perhaps we should be more fatal? */
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	162 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	163 }
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with Matt Johnston <matt@ucc.asn.au> parents: 43 diff changeset	164
883 ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	165 /* 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	166 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	167 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	168 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	169 TRACE(("ignore next response, state set to USERAUTH_REQ_SENT"))
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	170 cli_ses.state = USERAUTH_REQ_SENT;
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	171 } else {
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	172 cli_ses.state = USERAUTH_FAIL_RCVD;
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	173 cli_ses.lastauthtype = AUTH_TYPE_NONE;
68 eee77ac31ccc cleaning up the pubkey defines Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	174 #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	175 /* 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	176 * off the list. */
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	177 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	178 cli_pubkeyfail();
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	179 }
45 9ee8996a375f Pubkey auth is mostly there for the client. Something strange with Matt Johnston <matt@ucc.asn.au> parents: 43 diff changeset	180 #endif
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with Matt Johnston <matt@ucc.asn.au> parents: 43 diff changeset	181
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	182 #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	183 /* 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	184 * 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	185 * keyboard interactive again */
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	186 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	187 && !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	188 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	189 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	190 }
ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	191 #endif
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	192 }
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	193
883 ff597bf2cfb0 DROPBEAR_CLI_AUTH_IMMEDIATE fixed, now enabled by default Matt Johnston <matt@ucc.asn.au> parents: 734 diff changeset	194 cli_ses.ignore_next_auth_response = 0;
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	195
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 methods = buf_getstring(ses.payload, &methlen);
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197
179 161557a9dde8 * fix longstanding bug with connections being closed on failure to Matt Johnston <matt@ucc.asn.au> parents: 165 diff changeset	198 partial = buf_getbool(ses.payload);
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 if (partial) {
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201 dropbear_log(LOG_INFO, "Authentication partially succeeded, more attempts required");
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 } else {
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203 ses.authstate.failcount++;
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205
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	206 TRACE(("Methods (len %d): '%s'", methlen, methods))
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 ses.authstate.authdone=0;
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209 ses.authstate.authtypes=0;
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211 /* Split with nulls rather than commas */
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	212 for (i = 0; i < methlen; i++) {
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213 if (methods[i] == ',') {
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	214 methods[i] = '\0';
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 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	217
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	218 tok = methods; /* tok stores the next method we'll compare */
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219 for (i = 0; i <= methlen; i++) {
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220 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	221 TRACE(("auth method '%s'", tok))
68 eee77ac31ccc cleaning up the pubkey defines Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	222 #ifdef ENABLE_CLI_PUBKEY_AUTH
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223 if (strncmp(AUTH_METHOD_PUBKEY, tok,
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224 AUTH_METHOD_PUBKEY_LEN) == 0) {
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 ses.authstate.authtypes \|= AUTH_TYPE_PUBKEY;
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227 #endif
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	228 #ifdef ENABLE_CLI_INTERACT_AUTH
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	229 if (strncmp(AUTH_METHOD_INTERACT, tok,
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	230 AUTH_METHOD_INTERACT_LEN) == 0) {
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	231 ses.authstate.authtypes \|= AUTH_TYPE_INTERACT;
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	232 }
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	233 #endif
68 eee77ac31ccc cleaning up the pubkey defines Matt Johnston <matt@ucc.asn.au> parents: 45 diff changeset	234 #ifdef ENABLE_CLI_PASSWORD_AUTH
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	235 if (strncmp(AUTH_METHOD_PASSWORD, tok,
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	236 AUTH_METHOD_PASSWORD_LEN) == 0) {
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237 ses.authstate.authtypes \|= AUTH_TYPE_PASSWORD;
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	238 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239 #endif
34 e2a1eaa19f22 Client mostly works up to password auth Matt Johnston <matt@ucc.asn.au> parents: 33 diff changeset	240 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	241 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	242 undefined */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	243 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	245
114 2be6aa26a8c9 Leak found with MallocDebug - it's kinda useful Matt Johnston <matt@ucc.asn.au> parents: 74 diff changeset	246 m_free(methods);
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	247
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	248 TRACE(("leave recv_msg_userauth_failure"))
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	249 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	250
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	251 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	252 /* 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	253 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	254
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	255 TRACE(("received msg_userauth_success"))
501 d58c478bd399 Add support for [email protected] delayed compression. Matt Johnston <matt@ucc.asn.au> parents: 441 diff changeset	256 /* 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	257 * will enable compression in the transport layer */
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	258 ses.authstate.authdone = 1;
37 0913e2ee3545 we're nearly there yet Matt Johnston <matt@ucc.asn.au> parents: 35 diff changeset	259 cli_ses.state = USERAUTH_SUCCESS_RCVD;
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	260 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	261
de3653483ac0 - Client auth using an agent's key works. Still need to implement client Matt Johnston <matt@ucc.asn.au> parents: 545 diff changeset	262 #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	263 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	264 #endif
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	265 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	266
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	267 int cli_auth_try() {
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	268
300 baea1d43e7eb Some cleanups/fixes for various TRACE statements Matt Johnston <matt@ucc.asn.au> parents: 268 diff changeset	269 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	270 TRACE(("enter cli_auth_try"))
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	271
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	272 CHECKCLEARTOWRITE();
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	273
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	274 /* Order to try is pubkey, interactive, password.
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	275 * 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	276 #ifdef ENABLE_CLI_PUBKEY_AUTH
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	277 if (ses.authstate.authtypes & AUTH_TYPE_PUBKEY) {
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	278 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	279 cli_ses.lastauthtype = AUTH_TYPE_PUBKEY;
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 }
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281 #endif
f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	282
732 2e5f2bc60e40 Try password before interactive - bit of a hack Matt Johnston <matt@ucc.asn.au> parents: 730 diff changeset	283 #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	284 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	285 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	286 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	287 } 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	288 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	289 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	290 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	291 }
732 2e5f2bc60e40 Try password before interactive - bit of a hack Matt Johnston <matt@ucc.asn.au> parents: 730 diff changeset	292 }
2e5f2bc60e40 Try password before interactive - bit of a hack Matt Johnston <matt@ucc.asn.au> parents: 730 diff changeset	293 #endif
2e5f2bc60e40 Try password before interactive - bit of a hack Matt Johnston <matt@ucc.asn.au> parents: 730 diff changeset	294
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	295 #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	296 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	297 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	298 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	299 } 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	300 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	301 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	302 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	303 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	304 }
249 efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	305 }
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	306 }
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	307 #endif
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	308
efbaf6b03837 added keyboard-interactive client support Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	309 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	310
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 (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	312 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	313 return DROPBEAR_SUCCESS;
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	314 }
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	315 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	316 return DROPBEAR_FAILURE;
33 f789045062e6 Progressing client support Matt Johnston <matt@ucc.asn.au> parents: diff changeset	317 }
268 475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	318
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	319 /* 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	320 * 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	321 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	322 {
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	323 char* password = NULL;
441 fdf06a5a54e4 Allow reading dbclient password from an environment var Matt Johnston <matt@ucc.asn.au> parents: 334 diff changeset	324
fdf06a5a54e4 Allow reading dbclient password from an environment var Matt Johnston <matt@ucc.asn.au> parents: 334 diff changeset	325 #ifdef DROPBEAR_PASSWORD_ENV
fdf06a5a54e4 Allow reading dbclient password from an environment var Matt Johnston <matt@ucc.asn.au> parents: 334 diff changeset	326 /* 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	327 password = getenv(DROPBEAR_PASSWORD_ENV);
fdf06a5a54e4 Allow reading dbclient password from an environment var Matt Johnston <matt@ucc.asn.au> parents: 334 diff changeset	328 if (password)
fdf06a5a54e4 Allow reading dbclient password from an environment var Matt Johnston <matt@ucc.asn.au> parents: 334 diff changeset	329 {
fdf06a5a54e4 Allow reading dbclient password from an environment var Matt Johnston <matt@ucc.asn.au> parents: 334 diff changeset	330 return password;
fdf06a5a54e4 Allow reading dbclient password from an environment var Matt Johnston <matt@ucc.asn.au> parents: 334 diff changeset	331 }
fdf06a5a54e4 Allow reading dbclient password from an environment var Matt Johnston <matt@ucc.asn.au> parents: 334 diff changeset	332 #endif
268 475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	333
334 8f3ec7c104d9 Make the dbclient password prompt more useful Matt Johnston <matt@ucc.asn.au> parents: 300 diff changeset	334 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	335
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	336 /* 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	337 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	338 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	339 }
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	340 return password;
475a818dd6e7 Cancel a dbclient password prompt if the user presses ctrl-c. Matt Johnston <matt@ucc.asn.au> parents: 249 diff changeset	341 }

Mercurial > dropbear

annotate cli-auth.c @ 884:dd0bd9231fc2