2 * Copyright (c) 1999-2005, 2007, 2010-2011
3 * Todd C. Miller <Todd.Miller@courtesan.com>
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
17 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
19 * Sponsored in part by the Defense Advanced Research Projects
20 * Agency (DARPA) and Air Force Research Laboratory, Air Force
21 * Materiel Command, USAF, under agreement number F39502-99-1-0512.
26 #include <sys/types.h>
27 #include <sys/param.h>
36 #endif /* STDC_HEADERS */
39 #endif /* HAVE_STRING_H */
42 #endif /* HAVE_STRINGS_H */
45 #endif /* HAVE_UNISTD_H */
50 #include "sudo_auth.h"
52 static int sudo_collect(int, int, uchar_t *, int, prompt_t *);
54 static char *def_prompt;
55 static char **sudo_argv;
59 * Collection routine (callback) for limiting the timeouts in SIA
60 * prompts and (possibly) setting a custom prompt.
63 sudo_collect(int timeout, int rendition, uchar_t *title, int nprompts,
66 debug_decl(sudo_collect, SUDO_DEBUG_AUTH)
71 if (timeout <= 0 || timeout > def_passwd_timeout * 60)
72 timeout = def_passwd_timeout * 60;
74 * Substitute custom prompt if a) the sudo prompt is not "Password:"
75 * and b) the SIA prompt is "Password:" (so we know it is safe).
76 * This keeps us from overwriting things like S/Key challenges.
78 if (strcmp((char *)prompts[0].prompt, "Password:") == 0 &&
79 strcmp(def_prompt, "Password:") != 0)
80 prompts[0].prompt = (unsigned char *)def_prompt;
86 debug_return_int(sia_collect_trm(timeout, rendition, title, nprompts, prompts));
90 sudo_sia_setup(struct passwd *pw, char **promptp, sudo_auth *auth)
92 SIAENTITY *siah = NULL;
95 extern char **NewArgv;
96 debug_decl(sudo_sia_setup, SUDO_DEBUG_AUTH)
98 /* Rebuild argv for sia_ses_init() */
99 sudo_argc = NewArgc + 1;
100 sudo_argv = emalloc2(sudo_argc + 1, sizeof(char *));
101 sudo_argv[0] = "sudo";
102 for (i = 0; i < NewArgc; i++)
103 sudo_argv[i + 1] = NewArgv[i];
104 sudo_argv[sudo_argc] = NULL;
106 if (sia_ses_init(&siah, sudo_argc, sudo_argv, NULL, pw->pw_name, user_ttypath, 1, NULL) != SIASUCCESS) {
108 log_error(USE_ERRNO|NO_MAIL,
109 _("unable to initialize SIA session"));
110 debug_return_int(AUTH_FATAL);
113 auth->data = (void *) siah;
114 debug_return_int(AUTH_SUCCESS);
118 sudo_sia_verify(struct passwd *pw, char *prompt, sudo_auth *auth)
120 SIAENTITY *siah = (SIAENTITY *) auth->data;
121 debug_decl(sudo_sia_verify, SUDO_DEBUG_AUTH)
123 def_prompt = prompt; /* for sudo_collect */
125 /* XXX - need a way to detect user hitting return or EOF at prompt */
126 if (sia_ses_reauthent(sudo_collect, siah) == SIASUCCESS)
127 debug_return_int(AUTH_SUCCESS);
129 debug_return_int(AUTH_FAILURE);
133 sudo_sia_cleanup(struct passwd *pw, sudo_auth *auth)
135 SIAENTITY *siah = (SIAENTITY *) auth->data;
136 debug_decl(sudo_sia_cleanup, SUDO_DEBUG_AUTH)
138 (void) sia_ses_release(&siah);
140 debug_return_int(AUTH_SUCCESS);