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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 */ |