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/*
Authors:
Sumit Bose <sbose@redhat.com>
Copyright (C) 2009 Red Hat
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <dlfcn.h>
#include <sys/types.h>
#include <pwd.h>
#include <nss.h>
#include <errno.h>
#include <security/pam_appl.h>
#ifdef HAVE_SECURITY_PAM_MISC_H
# include <security/pam_misc.h>
#elif defined(HAVE_SECURITY_OPENPAM_H)
# include <security/openpam.h>
#endif
#ifdef HAVE_SECURITY_PAM_MISC_H
static struct pam_conv conv = {
misc_conv,
NULL
};
#elif defined(HAVE_SECURITY_OPENPAM_H)
static struct pam_conv conv = {
openpam_ttyconv,
NULL
};
#else
# error "Missing text based pam conversation function"
#endif
#define DEFAULT_ACTION "acct"
#define DEFAULT_SERVICE "system-auth"
#define DEFAULT_BUFSIZE 4096
static int sss_getpwnam_check(const char *user)
{
void *dl_handle = NULL;
enum nss_status (*sss_getpwnam_r)(const char *name, struct passwd *result,
char *buffer, size_t buflen,
int *errnop);
struct passwd pwd = { 0 };
enum nss_status status;
char *buffer = NULL;
size_t buflen;
int nss_errno;
int ret;
dl_handle = dlopen("libnss_sss.so.2", RTLD_NOW);
if (dl_handle == NULL) {
fprintf(stderr, "dlopen failed with [%s].\n", dlerror());
ret = EIO;
goto done;
}
sss_getpwnam_r = dlsym(dl_handle, "_nss_sss_getpwnam_r");
if (sss_getpwnam_r == NULL) {
fprintf(stderr, "dlsym failed with [%s].\n", dlerror());
ret = EIO;
goto done;
}
buflen = DEFAULT_BUFSIZE;
buffer = malloc(buflen);
if (buffer == NULL) {
fprintf(stderr, "malloc failed.\n");
ret = ENOMEM;
goto done;
}
status = sss_getpwnam_r(user, &pwd, buffer, buflen, &nss_errno);
if (status != NSS_STATUS_SUCCESS) {
fprintf(stderr, "sss_getpwnam_r failed with [%d].\n", status);
ret = EIO;
goto done;
}
fprintf(stdout, "SSSD nss user lookup result:\n");
fprintf(stdout, " - user name: %s\n", pwd.pw_name);
fprintf(stdout, " - user id: %d\n", pwd.pw_uid);
fprintf(stdout, " - group id: %d\n", pwd.pw_gid);
fprintf(stdout, " - gecos: %s\n", pwd.pw_gecos);
fprintf(stdout, " - home directory: %s\n", pwd.pw_dir);
fprintf(stdout, " - shell: %s\n", pwd.pw_shell);
ret = 0;
done:
if (dl_handle != NULL) {
dlclose(dl_handle);
}
free(buffer);
return ret;
}
int main(int argc, char *argv[]) {
pam_handle_t *pamh;
char *user;
char *action;
char *service;
int ret;
size_t c;
char **pam_env;
if (argc == 1) {
fprintf(stderr, "Usage: pam_test_client USERNAME "
"[auth|acct|setc|chau|open|clos] [pam_service]\n");
return 0;
} else if (argc == 2) {
fprintf(stderr, "using first argument as user name and default action "
"and service\n");
} else if (argc == 3) {
fprintf(stderr, "using first argument as user name, second as action "
"and default service\n");
}
user = strdup(argv[1]);
action = argc > 2 ? strdup(argv[2]) : strdup(DEFAULT_ACTION);
service = argc > 3 ? strdup(argv[3]) : strdup(DEFAULT_SERVICE);
if (action == NULL || user == NULL || service == NULL) {
fprintf(stderr, "Out of memory!\n");
return 1;
}
fprintf(stdout, "user: %s\naction: %s\nservice: %s\n",
user, action, service);
if (*user != '\0') {
ret = sss_getpwnam_check(user);
if (ret != 0) {
fprintf(stderr, "User name lookup with [%s] failed.\n", user);
}
}
ret = pam_start(service, user, &conv, &pamh);
if (ret != PAM_SUCCESS) {
fprintf(stderr, "pam_start failed: %s\n", pam_strerror(pamh, ret));
return 1;
}
if ( strncmp(action, "auth", 4)== 0 ) {
fprintf(stdout, "testing pam_authenticate\n");
ret = pam_authenticate(pamh, 0);
fprintf(stderr, "pam_authenticate: %s\n", pam_strerror(pamh, ret));
} else if ( strncmp(action, "chau", 4)== 0 ) {
fprintf(stdout, "testing pam_chauthtok\n");
ret = pam_chauthtok(pamh, 0);
fprintf(stderr, "pam_chauthtok: %s\n", pam_strerror(pamh, ret));
} else if ( strncmp(action, "acct", 4)== 0 ) {
fprintf(stdout, "testing pam_acct_mgmt\n");
ret = pam_acct_mgmt(pamh, 0);
fprintf(stderr, "pam_acct_mgmt: %s\n", pam_strerror(pamh, ret));
} else if ( strncmp(action, "setc", 4)== 0 ) {
fprintf(stdout, "testing pam_setcred\n");
ret = pam_setcred(pamh, 0);
fprintf(stderr, "pam_setcred: %d[%s]\n", ret, pam_strerror(pamh, ret));
} else if ( strncmp(action, "open", 4)== 0 ) {
fprintf(stdout, "testing pam_open_session\n");
ret = pam_open_session(pamh, 0);
fprintf(stderr, "pam_open_session: %s\n", pam_strerror(pamh, ret));
} else if ( strncmp(action, "clos", 4)== 0 ) {
fprintf(stdout, "testing pam_close_session\n");
ret = pam_close_session(pamh, 0);
fprintf(stderr, "pam_close_session: %s\n", pam_strerror(pamh, ret));
} else {
fprintf(stderr, "unknown action\n");
}
fprintf(stderr, "PAM Environment:\n");
pam_env = pam_getenvlist(pamh);
if (pam_env != NULL && pam_env[0] != NULL) {
for (c = 0; pam_env[c] != NULL; c++) {
fprintf(stderr, " - %s\n", pam_env[c]);
free(pam_env[c]);
}
} else {
fprintf(stderr, " - no env -\n");
}
free(pam_env);
pam_end(pamh, ret);
free(user);
free(action);
free(service);
return 0;
}
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