remove <heimbase.h> since its not used
[heimdal.git] / kuser / copy_cred_cache.c
blob3fe203074241790246bdd504dcfe60d8d5961504
1 /*
2 * Copyright (c) 2004 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 <config.h>
36 #include <stdlib.h>
37 #include <krb5.h>
38 #include <roken.h>
39 #include <getarg.h>
40 #include <parse_units.h>
41 #include <parse_time.h>
43 static int krbtgt_only_flag;
44 static char *service_string;
45 static char *enctype_string;
46 static char *flags_string;
47 static char *valid_string;
48 static int fcache_version;
49 static int help_flag;
50 static int version_flag;
52 static struct getargs args[] = {
53 { "krbtgt-only", 0, arg_flag, &krbtgt_only_flag,
54 "only copy local krbtgt" },
55 { "service", 0, arg_string, &service_string,
56 "limit to this service", "principal" },
57 { "enctype", 0, arg_string, &enctype_string,
58 "limit to this enctype", "enctype" },
59 { "flags", 0, arg_string, &flags_string,
60 "limit to these flags", "ticketflags" },
61 { "valid-for", 0, arg_string, &valid_string,
62 "limit to creds valid for at least this long", "time" },
63 { "fcache-version", 0, arg_integer, &fcache_version,
64 "file cache version to create" },
65 { "version", 0, arg_flag, &version_flag },
66 { "help", 'h', arg_flag, &help_flag }
69 static void
70 usage(int ret)
72 arg_printusage(args,
73 sizeof(args) / sizeof(*args),
74 NULL,
75 "[from-cache] to-cache");
76 exit(ret);
79 static int32_t
80 bitswap32(int32_t b)
82 int32_t r = 0;
83 int i;
84 for (i = 0; i < 32; i++) {
85 r = r << 1 | (b & 1);
86 b = b >> 1;
88 return r;
91 static void
92 parse_ticket_flags(krb5_context context,
93 const char *string, krb5_ticket_flags *ret_flags)
95 TicketFlags ff;
96 int flags = parse_flags(string, asn1_TicketFlags_units(), 0);
97 if (flags == -1) /* XXX */
98 krb5_errx(context, 1, "bad flags specified: \"%s\"", string);
100 memset(&ff, 0, sizeof(ff));
101 ff.proxy = 1;
102 if (parse_flags("proxy", asn1_TicketFlags_units(), 0) == TicketFlags2int(ff))
103 ret_flags->i = flags;
104 else
105 ret_flags->i = bitswap32(flags);
108 struct ctx {
109 krb5_flags whichfields;
110 krb5_creds mcreds;
113 static krb5_boolean
114 matchfunc(krb5_context context, void *ptr, const krb5_creds *creds)
116 struct ctx *ctx = ptr;
117 if (krb5_compare_creds(context, ctx->whichfields, &ctx->mcreds, creds))
118 return TRUE;
119 return FALSE;
123 main(int argc, char **argv)
125 krb5_error_code ret;
126 krb5_context context;
127 int optidx = 0;
128 const char *from_name, *to_name;
129 krb5_ccache from_ccache, to_ccache;
130 unsigned int matched;
131 struct ctx ctx;
133 setprogname(argv[0]);
135 memset(&ctx, 0, sizeof(ctx));
137 if (getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
138 usage(1);
140 if (help_flag)
141 usage(0);
143 if (version_flag) {
144 print_version(NULL);
145 exit(0);
147 argc -= optidx;
148 argv += optidx;
150 if (argc < 1 || argc > 2)
151 usage(1);
153 if (krb5_init_context(&context))
154 errx(1, "krb5_init_context failed");
156 if (service_string) {
157 ret = krb5_parse_name(context, service_string, &ctx.mcreds.server);
158 if (ret)
159 krb5_err(context, 1, ret, "%s", service_string);
161 if (enctype_string) {
162 krb5_enctype enctype;
163 ret = krb5_string_to_enctype(context, enctype_string, &enctype);
164 if (ret)
165 krb5_err(context, 1, ret, "%s", enctype_string);
166 ctx.whichfields |= KRB5_TC_MATCH_KEYTYPE;
167 ctx.mcreds.session.keytype = enctype;
169 if (flags_string) {
170 parse_ticket_flags(context, flags_string, &ctx.mcreds.flags);
171 ctx.whichfields |= KRB5_TC_MATCH_FLAGS;
173 if (valid_string) {
174 time_t t = parse_time(valid_string, "s");
175 if(t < 0)
176 errx(1, "unknown time \"%s\"", valid_string);
177 ctx.mcreds.times.endtime = time(NULL) + t;
178 ctx.whichfields |= KRB5_TC_MATCH_TIMES;
180 if (fcache_version)
181 krb5_set_fcache_version(context, fcache_version);
183 if (argc == 1) {
184 from_name = krb5_cc_default_name(context);
185 to_name = argv[0];
186 } else {
187 from_name = argv[0];
188 to_name = argv[1];
191 ret = krb5_cc_resolve(context, from_name, &from_ccache);
192 if (ret)
193 krb5_err(context, 1, ret, "%s", from_name);
195 if (krbtgt_only_flag) {
196 krb5_principal client;
197 ret = krb5_cc_get_principal(context, from_ccache, &client);
198 if (ret)
199 krb5_err(context, 1, ret, "getting default principal");
200 ret = krb5_make_principal(context, &ctx.mcreds.server,
201 krb5_principal_get_realm(context, client),
202 KRB5_TGS_NAME,
203 krb5_principal_get_realm(context, client),
204 NULL);
205 if (ret)
206 krb5_err(context, 1, ret, "constructing krbtgt principal");
207 krb5_free_principal(context, client);
209 ret = krb5_cc_resolve(context, to_name, &to_ccache);
210 if (ret)
211 krb5_err(context, 1, ret, "%s", to_name);
213 ret = krb5_cc_copy_match_f(context, from_ccache, to_ccache,
214 matchfunc, &ctx, &matched);
215 if (ret)
216 krb5_err(context, 1, ret, "copying cred cache");
218 krb5_cc_close(context, from_ccache);
219 if(matched == 0)
220 krb5_cc_destroy(context, to_ccache);
221 else
222 krb5_cc_close(context, to_ccache);
223 krb5_free_context(context);
224 return matched == 0;