/* * 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 RCSID("$Id: copy_cred_cache.c 15542 2005-07-01 07:20:54Z lha $"); #endif #include #include #include #include #include #include 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; }