diff options
Diffstat (limited to 'crypto/heimdal/kuser/copy_cred_cache.c')
| -rw-r--r-- | crypto/heimdal/kuser/copy_cred_cache.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/crypto/heimdal/kuser/copy_cred_cache.c b/crypto/heimdal/kuser/copy_cred_cache.c new file mode 100644 index 0000000..8faf82d --- /dev/null +++ b/crypto/heimdal/kuser/copy_cred_cache.c @@ -0,0 +1,215 @@ +/* + * Copyright (c) 2004 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +RCSID("$Id: copy_cred_cache.c 15542 2005-07-01 07:20:54Z lha $"); +#endif + +#include <stdlib.h> +#include <krb5.h> +#include <roken.h> +#include <getarg.h> +#include <parse_units.h> +#include <parse_time.h> + +static int krbtgt_only_flag; +static char *service_string; +static char *enctype_string; +static char *flags_string; +static char *valid_string; +static int fcache_version; +static int help_flag; +static int version_flag; + +static struct getargs args[] = { + { "krbtgt-only", 0, arg_flag, &krbtgt_only_flag, + "only copy local krbtgt" }, + { "service", 0, arg_string, &service_string, + "limit to this service", "principal" }, + { "enctype", 0, arg_string, &enctype_string, + "limit to this enctype", "enctype" }, + { "flags", 0, arg_string, &flags_string, + "limit to these flags", "ticketflags" }, + { "valid-for", 0, arg_string, &valid_string, + "limit to creds valid for at least this long", "time" }, + { "fcache-version", 0, arg_integer, &fcache_version, + "file cache version to create" }, + { "version", 0, arg_flag, &version_flag }, + { "help", 'h', arg_flag, &help_flag } +}; + +static void +usage(int ret) +{ + arg_printusage(args, + sizeof(args) / sizeof(*args), + NULL, + "[from-cache] to-cache"); + exit(ret); +} + +static int32_t +bitswap32(int32_t b) +{ + int32_t r = 0; + int i; + for (i = 0; i < 32; i++) { + r = r << 1 | (b & 1); + b = b >> 1; + } + return r; +} + +static void +parse_ticket_flags(krb5_context context, + const char *string, krb5_ticket_flags *ret_flags) +{ + TicketFlags ff; + int flags = parse_flags(string, asn1_TicketFlags_units(), 0); + if (flags == -1) /* XXX */ + krb5_errx(context, 1, "bad flags specified: \"%s\"", string); + + memset(&ff, 0, sizeof(ff)); + ff.proxy = 1; + if (parse_flags("proxy", asn1_TicketFlags_units(), 0) == TicketFlags2int(ff)) + ret_flags->i = flags; + else + ret_flags->i = bitswap32(flags); +} + +int +main(int argc, char **argv) +{ + krb5_error_code ret; + krb5_context context; + int optidx = 0; + const char *from_name, *to_name; + krb5_ccache from_ccache, to_ccache; + krb5_flags whichfields = 0; + krb5_creds mcreds; + unsigned int matched; + + setprogname(argv[0]); + + memset(&mcreds, 0, sizeof(mcreds)); + + if (getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx)) + usage(1); + + if (help_flag) + usage(0); + + if (version_flag) { + print_version(NULL); + exit(0); + } + argc -= optidx; + argv += optidx; + + if (argc < 1 || argc > 2) + usage(1); + + if (krb5_init_context(&context)) + errx(1, "krb5_init_context failed"); + + if (service_string) { + ret = krb5_parse_name(context, service_string, &mcreds.server); + if (ret) + krb5_err(context, 1, ret, "%s", service_string); + } + if (enctype_string) { + krb5_enctype enctype; + ret = krb5_string_to_enctype(context, enctype_string, &enctype); + if (ret) + krb5_err(context, 1, ret, "%s", enctype_string); + whichfields |= KRB5_TC_MATCH_KEYTYPE; + mcreds.session.keytype = enctype; + } + if (flags_string) { + parse_ticket_flags(context, flags_string, &mcreds.flags); + whichfields |= KRB5_TC_MATCH_FLAGS; + } + if (valid_string) { + time_t t = parse_time(valid_string, "s"); + if(t < 0) + errx(1, "unknown time \"%s\"", valid_string); + mcreds.times.endtime = time(NULL) + t; + whichfields |= KRB5_TC_MATCH_TIMES; + } + if (fcache_version) + krb5_set_fcache_version(context, fcache_version); + + if (argc == 1) { + from_name = krb5_cc_default_name(context); + to_name = argv[0]; + } else { + from_name = argv[0]; + to_name = argv[1]; + } + + ret = krb5_cc_resolve(context, from_name, &from_ccache); + if (ret) + krb5_err(context, 1, ret, "%s", from_name); + + if (krbtgt_only_flag) { + krb5_principal client; + ret = krb5_cc_get_principal(context, from_ccache, &client); + if (ret) + krb5_err(context, 1, ret, "getting default principal"); + ret = krb5_make_principal(context, &mcreds.server, + krb5_principal_get_realm(context, client), + KRB5_TGS_NAME, + krb5_principal_get_realm(context, client), + NULL); + if (ret) + krb5_err(context, 1, ret, "constructing krbtgt principal"); + krb5_free_principal(context, client); + } + ret = krb5_cc_resolve(context, to_name, &to_ccache); + if (ret) + krb5_err(context, 1, ret, "%s", to_name); + + ret = krb5_cc_copy_cache_match(context, from_ccache, to_ccache, + whichfields, &mcreds, &matched); + if (ret) + krb5_err(context, 1, ret, "copying cred cache"); + + krb5_cc_close(context, from_ccache); + if(matched == 0) + krb5_cc_destroy(context, to_ccache); + else + krb5_cc_close(context, to_ccache); + krb5_free_context(context); + return matched == 0; +} |
