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[heimdal.git] / kdc / hpropd.c
blob297cb420d0644abed814b9a29f86317e9a958cd5
1 /*
2 * Copyright (c) 1997-2006 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
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.
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.
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.
34 #include "hprop.h"
36 RCSID("$Id$");
38 static int inetd_flag = -1;
39 static int help_flag;
40 static int version_flag;
41 static int print_dump;
42 static const char *database;
43 static int from_stdin;
44 static char *local_realm;
45 static char *ktname = NULL;
47 struct getargs args[] = {
48 { "database", 'd', arg_string, &database, "database", "file" },
49 { "stdin", 'n', arg_flag, &from_stdin, "read from stdin" },
50 { "print", 0, arg_flag, &print_dump, "print dump to stdout" },
51 { "inetd", 'i', arg_negative_flag, &inetd_flag,
52 "Not started from inetd" },
53 { "keytab", 'k', arg_string, &ktname, "keytab to use for authentication", "keytab" },
54 { "realm", 'r', arg_string, &local_realm, "realm to use" },
55 { "version", 0, arg_flag, &version_flag, NULL, NULL },
56 { "help", 'h', arg_flag, &help_flag, NULL, NULL}
59 static int num_args = sizeof(args) / sizeof(args[0]);
61 static void
62 usage(int ret)
64 arg_printusage (args, num_args, NULL, "");
65 exit (ret);
68 int
69 main(int argc, char **argv)
71 krb5_error_code ret;
72 krb5_context context;
73 krb5_auth_context ac = NULL;
74 krb5_principal c1, c2;
75 krb5_authenticator authent;
76 krb5_keytab keytab;
77 int fd;
78 HDB *db;
79 int optidx = 0;
80 char *tmp_db;
81 krb5_log_facility *fac;
82 int nprincs;
84 setprogname(argv[0]);
86 ret = krb5_init_context(&context);
87 if(ret)
88 exit(1);
90 ret = krb5_openlog(context, "hpropd", &fac);
91 if(ret)
93 krb5_set_warn_dest(context, fac);
95 if(getarg(args, num_args, argc, argv, &optidx))
96 usage(1);
98 if(local_realm != NULL)
99 krb5_set_default_realm(context, local_realm);
101 if(help_flag)
102 usage(0);
103 if(version_flag) {
104 print_version(NULL);
105 exit(0);
108 argc -= optidx;
109 argv += optidx;
111 if (argc != 0)
112 usage(1);
114 if (database == NULL)
115 database = hdb_default_db(context);
117 if(from_stdin)
118 fd = STDIN_FILENO;
119 else {
120 struct sockaddr_storage ss;
121 struct sockaddr *sa = (struct sockaddr *)&ss;
122 socklen_t sin_len = sizeof(ss);
123 char addr_name[256];
124 krb5_ticket *ticket;
125 char *server;
127 fd = STDIN_FILENO;
128 if (inetd_flag == -1) {
129 if (getpeername (fd, sa, &sin_len) < 0)
130 inetd_flag = 0;
131 else
132 inetd_flag = 1;
134 if (!inetd_flag) {
135 mini_inetd (krb5_getportbyname (context, "hprop", "tcp",
136 HPROP_PORT));
138 sin_len = sizeof(ss);
139 if(getpeername(fd, sa, &sin_len) < 0)
140 krb5_err(context, 1, errno, "getpeername");
142 if (inet_ntop(sa->sa_family,
143 socket_get_address (sa),
144 addr_name,
145 sizeof(addr_name)) == NULL)
146 strlcpy (addr_name, "unknown address",
147 sizeof(addr_name));
149 krb5_log(context, fac, 0, "Connection from %s", addr_name);
151 ret = krb5_kt_register(context, &hdb_kt_ops);
152 if(ret)
153 krb5_err(context, 1, ret, "krb5_kt_register");
155 if (ktname != NULL) {
156 ret = krb5_kt_resolve(context, ktname, &keytab);
157 if (ret)
158 krb5_err (context, 1, ret, "krb5_kt_resolve %s", ktname);
159 } else {
160 ret = krb5_kt_default (context, &keytab);
161 if (ret)
162 krb5_err (context, 1, ret, "krb5_kt_default");
165 ret = krb5_recvauth(context, &ac, &fd, HPROP_VERSION, NULL,
166 0, keytab, &ticket);
167 if(ret)
168 krb5_err(context, 1, ret, "krb5_recvauth");
170 ret = krb5_unparse_name(context, ticket->server, &server);
171 if (ret)
172 krb5_err(context, 1, ret, "krb5_unparse_name");
173 if (strncmp(server, "hprop/", 5) != 0)
174 krb5_errx(context, 1, "ticket not for hprop (%s)", server);
176 free(server);
177 krb5_free_ticket (context, ticket);
179 ret = krb5_auth_con_getauthenticator(context, ac, &authent);
180 if(ret)
181 krb5_err(context, 1, ret, "krb5_auth_con_getauthenticator");
183 ret = krb5_make_principal(context, &c1, NULL, "kadmin", "hprop", NULL);
184 if(ret)
185 krb5_err(context, 1, ret, "krb5_make_principal");
186 _krb5_principalname2krb5_principal(context, &c2,
187 authent->cname, authent->crealm);
188 if(!krb5_principal_compare(context, c1, c2)) {
189 char *s;
190 ret = krb5_unparse_name(context, c2, &s);
191 if (ret)
192 s = "unparseable name";
193 krb5_errx(context, 1, "Unauthorized connection from %s", s);
195 krb5_free_principal(context, c1);
196 krb5_free_principal(context, c2);
198 ret = krb5_kt_close(context, keytab);
199 if(ret)
200 krb5_err(context, 1, ret, "krb5_kt_close");
203 if(!print_dump) {
204 asprintf(&tmp_db, "%s~", database);
206 ret = hdb_create(context, &db, tmp_db);
207 if(ret)
208 krb5_err(context, 1, ret, "hdb_create(%s)", tmp_db);
209 ret = db->hdb_open(context, db, O_RDWR | O_CREAT | O_TRUNC, 0600);
210 if(ret)
211 krb5_err(context, 1, ret, "hdb_open(%s)", tmp_db);
214 nprincs = 0;
215 while(1){
216 krb5_data data;
217 hdb_entry_ex entry;
219 if(from_stdin) {
220 ret = krb5_read_message(context, &fd, &data);
221 if(ret != 0 && ret != HEIM_ERR_EOF)
222 krb5_err(context, 1, ret, "krb5_read_message");
223 } else {
224 ret = krb5_read_priv_message(context, ac, &fd, &data);
225 if(ret)
226 krb5_err(context, 1, ret, "krb5_read_priv_message");
229 if(ret == HEIM_ERR_EOF || data.length == 0) {
230 if(!from_stdin) {
231 data.data = NULL;
232 data.length = 0;
233 krb5_write_priv_message(context, ac, &fd, &data);
235 if(!print_dump) {
236 ret = db->hdb_rename(context, db, database);
237 if(ret)
238 krb5_err(context, 1, ret, "db_rename");
239 ret = db->hdb_close(context, db);
240 if(ret)
241 krb5_err(context, 1, ret, "db_close");
243 break;
245 memset(&entry, 0, sizeof(entry));
246 ret = hdb_value2entry(context, &data, &entry.entry);
247 krb5_data_free(&data);
248 if(ret)
249 krb5_err(context, 1, ret, "hdb_value2entry");
250 if(print_dump)
251 hdb_print_entry(context, db, &entry, stdout);
252 else {
253 ret = db->hdb_store(context, db, 0, &entry);
254 if(ret == HDB_ERR_EXISTS) {
255 char *s;
256 ret = krb5_unparse_name(context, entry.entry.principal, &s);
257 if (ret)
258 s = strdup("unparseable name");
259 krb5_warnx(context, "Entry exists: %s", s);
260 free(s);
261 } else if(ret)
262 krb5_err(context, 1, ret, "db_store");
263 else
264 nprincs++;
266 hdb_free_entry(context, &entry);
268 if (!print_dump)
269 krb5_log(context, fac, 0, "Received %d principals", nprincs);
270 exit(0);