1 /* 2 * Copyright (c) 2004 Darren Tucker. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #include "includes.h" 26 27 #if defined(USE_SHADOW) && defined(HAS_SHADOW_EXPIRE) 28 #include <shadow.h> 29 #include <stdarg.h> 30 #include <string.h> 31 32 #include "key.h" 33 #include "hostfile.h" 34 #include "auth.h" 35 #include "buffer.h" 36 #include "log.h" 37 38 #ifdef DAY 39 # undef DAY 40 #endif 41 #define DAY (24L * 60 * 60) /* 1 day in seconds */ 42 43 extern Buffer loginmsg; 44 45 /* 46 * For the account and password expiration functions, we assume the expiry 47 * occurs the day after the day specified. 48 */ 49 50 /* 51 * Check if specified account is expired. Returns 1 if account is expired, 52 * 0 otherwise. 53 */ 54 int 55 auth_shadow_acctexpired(struct spwd *spw) 56 { 57 time_t today; 58 int daysleft; 59 char buf[256]; 60 61 today = time(NULL) / DAY; 62 daysleft = spw->sp_expire - today; 63 debug3("%s: today %d sp_expire %d days left %d", __func__, (int)today, 64 (int)spw->sp_expire, daysleft); 65 66 if (spw->sp_expire == -1) { 67 debug3("account expiration disabled"); 68 } else if (daysleft < 0) { 69 logit("Account %.100s has expired", spw->sp_namp); 70 return 1; 71 } else if (daysleft <= spw->sp_warn) { 72 debug3("account will expire in %d days", daysleft); 73 snprintf(buf, sizeof(buf), 74 "Your account will expire in %d day%s.\n", daysleft, 75 daysleft == 1 ? "" : "s"); 76 buffer_append(&loginmsg, buf, strlen(buf)); 77 } 78 79 return 0; 80 } 81 82 /* 83 * Checks password expiry for platforms that use shadow passwd files. 84 * Returns: 1 = password expired, 0 = password not expired 85 */ 86 int 87 auth_shadow_pwexpired(Authctxt *ctxt) 88 { 89 struct spwd *spw = NULL; 90 const char *user = ctxt->pw->pw_name; 91 char buf[256]; 92 time_t today; 93 int daysleft, disabled = 0; 94 95 if ((spw = getspnam((char *)user)) == NULL) { 96 error("Could not get shadow information for %.100s", user); 97 return 0; 98 } 99 100 today = time(NULL) / DAY; 101 debug3("%s: today %d sp_lstchg %d sp_max %d", __func__, (int)today, 102 (int)spw->sp_lstchg, (int)spw->sp_max); 103 104 #if defined(__hpux) && !defined(HAVE_SECUREWARE) 105 if (iscomsec()) { 106 struct pr_passwd *pr; 107 108 pr = getprpwnam((char *)user); 109 110 /* Test for Trusted Mode expiry disabled */ 111 if (pr != NULL && pr->ufld.fd_min == 0 && 112 pr->ufld.fd_lifetime == 0 && pr->ufld.fd_expire == 0 && 113 pr->ufld.fd_pw_expire_warning == 0 && 114 pr->ufld.fd_schange != 0) 115 disabled = 1; 116 } 117 #endif 118 119 /* TODO: check sp_inact */ 120 daysleft = spw->sp_lstchg + spw->sp_max - today; 121 if (disabled) { 122 debug3("password expiration disabled"); 123 } else if (spw->sp_lstchg == 0) { 124 logit("User %.100s password has expired (root forced)", user); 125 return 1; 126 } else if (spw->sp_max == -1) { 127 debug3("password expiration disabled"); 128 } else if (daysleft < 0) { 129 logit("User %.100s password has expired (password aged)", user); 130 return 1; 131 } else if (daysleft <= spw->sp_warn) { 132 debug3("password will expire in %d days", daysleft); 133 snprintf(buf, sizeof(buf), 134 "Your password will expire in %d day%s.\n", daysleft, 135 daysleft == 1 ? "" : "s"); 136 buffer_append(&loginmsg, buf, strlen(buf)); 137 } 138 139 return 0; 140 } 141 #endif /* USE_SHADOW && HAS_SHADOW_EXPIRE */ 142