1 /*- 2 * Copyright (c) 2015 Dag-Erling Smørgrav 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote 14 * products derived from this software without specific prior written 15 * permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $OpenPAM: pam_return.c 938 2017-04-30 21:34:42Z des $ 30 */ 31 32 #ifdef HAVE_CONFIG_H 33 # include "config.h" 34 #endif 35 36 #include <sys/param.h> 37 38 #include <limits.h> 39 #include <stdlib.h> 40 #include <string.h> 41 42 #include <security/pam_modules.h> 43 #include <security/openpam.h> 44 45 #include "openpam_impl.h" 46 47 static int 48 pam_return(pam_handle_t *pamh, int flags, 49 int argc, const char *argv[]) 50 { 51 const char *errname; 52 char *e; 53 long errcode; 54 55 (void)flags; 56 (void)argc; 57 (void)argv; 58 if ((errname = openpam_get_option(pamh, "error")) == NULL || 59 errname[0] == '\0') { 60 openpam_log(PAM_LOG_ERROR, "missing error parameter"); 61 return (PAM_SYSTEM_ERR); 62 } 63 /* is it a number? */ 64 errcode = strtol(errname, &e, 10); 65 if (e != NULL && *e == '\0') { 66 /* yep, check range */ 67 if (errcode >= INT_MIN && errcode <= INT_MAX) 68 return (errcode); 69 } else { 70 /* nope, look it up */ 71 for (errcode = 0; errcode < PAM_NUM_ERRORS; ++errcode) 72 if (strcmp(errname, pam_err_name[errcode]) == 0) 73 return (errcode); 74 } 75 openpam_log(PAM_LOG_ERROR, "invalid error code '%s'", errname); 76 return (PAM_SYSTEM_ERR); 77 } 78 79 PAM_EXTERN int 80 pam_sm_authenticate(pam_handle_t *pamh, int flags, 81 int argc, const char *argv[]) 82 { 83 84 return (pam_return(pamh, flags, argc, argv)); 85 } 86 87 PAM_EXTERN int 88 pam_sm_setcred(pam_handle_t *pamh, int flags, 89 int argc, const char *argv[]) 90 { 91 92 return (pam_return(pamh, flags, argc, argv)); 93 } 94 95 PAM_EXTERN int 96 pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, 97 int argc, const char *argv[]) 98 { 99 100 return (pam_return(pamh, flags, argc, argv)); 101 } 102 103 PAM_EXTERN int 104 pam_sm_open_session(pam_handle_t *pamh, int flags, 105 int argc, const char *argv[]) 106 { 107 108 return (pam_return(pamh, flags, argc, argv)); 109 } 110 111 PAM_EXTERN int 112 pam_sm_close_session(pam_handle_t *pamh, int flags, 113 int argc, const char *argv[]) 114 { 115 116 return (pam_return(pamh, flags, argc, argv)); 117 } 118 119 PAM_EXTERN int 120 pam_sm_chauthtok(pam_handle_t *pamh, int flags, 121 int argc, const char *argv[]) 122 { 123 124 return (pam_return(pamh, flags, argc, argv)); 125 } 126 127 PAM_MODULE_ENTRY("pam_return"); 128