diff options
Diffstat (limited to 'modules/pam_rhosts/pam_rhosts.c')
| -rw-r--r-- | modules/pam_rhosts/pam_rhosts.c | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/modules/pam_rhosts/pam_rhosts.c b/modules/pam_rhosts/pam_rhosts.c deleted file mode 100644 index 8e120614..00000000 --- a/modules/pam_rhosts/pam_rhosts.c +++ /dev/null @@ -1,155 +0,0 @@ -/* - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, and the entire permission notice in its entirety, - * including the disclaimer of warranties. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote - * products derived from this software without specific prior - * written permission. - * - * ALTERNATIVELY, this product may be distributed under the terms of - * the GNU Public License, in which case the provisions of the GPL are - * required INSTEAD OF the above restrictions. (This clause is - * necessary due to a potential bad interaction between the GPL and - * the restrictions contained in a BSD-style copyright.) - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - */ -#include "config.h" - -#include <pwd.h> -#include <netdb.h> -#include <string.h> -#include <syslog.h> - -#define PAM_SM_AUTH /* only defines this management group */ - -#include <security/pam_modules.h> -#include <security/pam_modutil.h> -#include <security/pam_ext.h> - -PAM_EXTERN -int pam_sm_authenticate (pam_handle_t *pamh, int flags, int argc, - const char **argv) -{ - const char *luser = NULL; - const char *ruser = NULL, *rhost = NULL; - const char *opt_superuser = NULL; - const void *c_void; - int opt_debug = 0; - int opt_silent; - int as_root; - int retval; - - opt_silent = flags & PAM_SILENT; - - while (argc-- > 0) { - if (strcmp(*argv, "debug") == 0) - opt_debug = 1; - else if (strcmp (*argv, "silent") == 0 || strcmp(*argv, "suppress") == 0) - opt_silent = 1; - else if (strncmp(*argv, "superuser=", sizeof("superuser=")-1) == 0) - opt_superuser = *argv+sizeof("superuser=")-1; - else - pam_syslog(pamh, LOG_WARNING, "unrecognized option '%s'", *argv); - - ++argv; - } - - retval = pam_get_item (pamh, PAM_RHOST, &c_void); - if (retval != PAM_SUCCESS) { - pam_syslog(pamh, LOG_ERR, "could not get the remote host name"); - return retval; - } - rhost = c_void; - - retval = pam_get_item(pamh, PAM_RUSER, &c_void); - ruser = c_void; - if (retval != PAM_SUCCESS) { - pam_syslog(pamh, LOG_ERR, "could not get the remote username"); - return retval; - } - - retval = pam_get_user(pamh, &luser, NULL); - if (retval != PAM_SUCCESS) { - pam_syslog(pamh, LOG_ERR, "could not determine name of local user"); - return retval; - } - - if (rhost == NULL || ruser == NULL || luser == NULL) - return PAM_AUTH_ERR; - - if (opt_superuser && strcmp(opt_superuser, luser) == 0) - as_root = 1; - else { - struct passwd *lpwd; - - lpwd = pam_modutil_getpwnam(pamh, luser); - if (lpwd == NULL) { - if (opt_debug) - /* don't print by default, could be the users password */ - pam_syslog(pamh, LOG_DEBUG, - "user '%s' unknown to this system", luser); - return PAM_USER_UNKNOWN; - - } - as_root = (lpwd->pw_uid == 0); - } - -#ifdef HAVE_RUSEROK_AF - retval = ruserok_af (rhost, as_root, ruser, luser, PF_UNSPEC); -#else - retval = ruserok (rhost, as_root, ruser, luser); -#endif - if (retval != 0) { - if (!opt_silent || opt_debug) - pam_syslog(pamh, LOG_WARNING, "denied access to %s@%s as %s", - ruser, rhost, luser); - return PAM_AUTH_ERR; - } else { - if (!opt_silent || opt_debug) - pam_syslog(pamh, LOG_NOTICE, "allowed access to %s@%s as %s", - ruser, rhost, luser); - return PAM_SUCCESS; - } -} - - -PAM_EXTERN int -pam_sm_setcred (pam_handle_t *pamh UNUSED, int flags UNUSED, - int argc UNUSED, const char **argv UNUSED) -{ - return PAM_SUCCESS; -} - - -#ifdef PAM_STATIC - -/* static module data */ - -struct pam_module _pam_rhosts_modstruct = { - "pam_rhosts", - pam_sm_authenticate, - pam_sm_setcred, - NULL, - NULL, - NULL, - NULL, -}; - -#endif |