1 /*
2 * Copyright (c) 1997-2004 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #include "kadmin_locl.h"
35
36 static char *check_library = NULL;
37 static char *check_function = NULL;
38 static getarg_strings policy_libraries = { 0, NULL };
39 static char *config_file;
40 static char sHDB[] = "HDB:";
41 static char *keytab_str = sHDB;
42 static int help_flag;
43 static int version_flag;
44 static int debug_flag;
45 static char *port_str;
46 char *realm;
47
48 static struct getargs args[] = {
49 {
50 "config-file", 'c', arg_string, &config_file,
51 "location of config file", "file"
52 },
53 {
54 "keytab", 0, arg_string, &keytab_str,
55 "what keytab to use", "keytab"
56 },
57 { "realm", 'r', arg_string, &realm,
58 "realm to use", "realm"
59 },
60 #ifdef HAVE_DLOPEN
61 { "check-library", 0, arg_string, &check_library,
62 "library to load password check function from", "library" },
63 { "check-function", 0, arg_string, &check_function,
64 "password check function to load", "function" },
65 { "policy-libraries", 0, arg_strings, &policy_libraries,
66 "password check function to load", "function" },
67 #endif
68 { "debug", 'd', arg_flag, &debug_flag,
69 "enable debugging", NULL
70 },
71 { "ports", 'p', arg_string, &port_str,
72 "ports to listen to", "port" },
73 { "help", 'h', arg_flag, &help_flag, NULL, NULL },
74 { "version", 'v', arg_flag, &version_flag, NULL, NULL }
75 };
76
77 static int num_args = sizeof(args) / sizeof(args[0]);
78
79 krb5_context context;
80
81 static void
usage(int ret)82 usage(int ret)
83 {
84 arg_printusage (args, num_args, NULL, "");
85 exit (ret);
86 }
87
88 int
main(int argc,char ** argv)89 main(int argc, char **argv)
90 {
91 krb5_error_code ret;
92 char **files;
93 int optidx = 0;
94 int i;
95 krb5_log_facility *logfacility;
96 krb5_keytab keytab;
97 krb5_socket_t sfd = rk_INVALID_SOCKET;
98
99 setprogname(argv[0]);
100
101 ret = krb5_init_context(&context);
102 if (ret)
103 errx (1, "krb5_init_context failed: %d", ret);
104
105 if (getarg(args, num_args, argc, argv, &optidx)) {
106 warnx("error at argument `%s'", argv[optidx]);
107 usage(1);
108 }
109
110 if (help_flag)
111 usage (0);
112
113 if (version_flag) {
114 print_version(NULL);
115 exit(0);
116 }
117
118 argc -= optidx;
119 #ifndef __clang_analyzer__
120 argv += optidx;
121 #endif
122 if (argc != 0)
123 usage(1);
124
125 if (config_file == NULL) {
126 asprintf(&config_file, "%s/kdc.conf", hdb_db_dir(context));
127 if (config_file == NULL)
128 errx(1, "out of memory");
129 }
130
131 ret = krb5_prepend_config_files_default(config_file, &files);
132 if (ret)
133 krb5_err(context, 1, ret, "getting configuration files");
134
135 ret = krb5_set_config_files(context, files);
136 krb5_free_config_files(files);
137 if(ret)
138 krb5_err(context, 1, ret, "reading configuration files");
139
140 ret = krb5_openlog(context, "kadmind", &logfacility);
141 if (ret)
142 krb5_err(context, 1, ret, "krb5_openlog");
143 ret = krb5_set_warn_dest(context, logfacility);
144 if (ret)
145 krb5_err(context, 1, ret, "krb5_set_warn_dest");
146
147 ret = krb5_kt_register(context, &hdb_kt_ops);
148 if(ret)
149 krb5_err(context, 1, ret, "krb5_kt_register");
150
151 ret = krb5_kt_resolve(context, keytab_str, &keytab);
152 if(ret)
153 krb5_err(context, 1, ret, "krb5_kt_resolve");
154
155 kadm5_setup_passwd_quality_check (context, check_library, check_function);
156
157 for (i = 0; i < policy_libraries.num_strings; i++) {
158 ret = kadm5_add_passwd_quality_verifier(context,
159 policy_libraries.strings[i]);
160 if (ret)
161 krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier");
162 }
163 ret = kadm5_add_passwd_quality_verifier(context, NULL);
164 if (ret)
165 krb5_err(context, 1, ret, "kadm5_add_passwd_quality_verifier");
166
167 if(debug_flag) {
168 int debug_port;
169
170 if(port_str == NULL)
171 debug_port = krb5_getportbyname (context, "kerberos-adm",
172 "tcp", 749);
173 else
174 debug_port = htons(atoi(port_str));
175 mini_inetd(debug_port, &sfd);
176 } else {
177 #ifdef _WIN32
178 pidfile(NULL);
179 start_server(context, port_str);
180 #else
181 struct sockaddr_storage __ss;
182 struct sockaddr *sa = (struct sockaddr *)&__ss;
183 socklen_t sa_size = sizeof(__ss);
184
185 /*
186 * Check if we are running inside inetd or not, if not, start
187 * our own server.
188 */
189
190 if(roken_getsockname(STDIN_FILENO, sa, &sa_size) < 0 &&
191 rk_SOCK_ERRNO == ENOTSOCK) {
192 pidfile(NULL);
193 start_server(context, port_str);
194 }
195 #endif /* _WIN32 */
196 sfd = STDIN_FILENO;
197 }
198
199 if(realm)
200 krb5_set_default_realm(context, realm); /* XXX */
201
202 kadmind_loop(context, keytab, sfd);
203
204 return 0;
205 }
206