diff options
Diffstat (limited to 'third_party/heimdal/kuser/copy_cred_cache.c')
| -rw-r--r-- | third_party/heimdal/kuser/copy_cred_cache.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/third_party/heimdal/kuser/copy_cred_cache.c b/third_party/heimdal/kuser/copy_cred_cache.c new file mode 100644 index 0000000..1067000 --- /dev/null +++ b/third_party/heimdal/kuser/copy_cred_cache.c @@ -0,0 +1,164 @@ +/* + * 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. + */ + +#include "kuser_locl.h" +#include <config.h> +#include <parse_units.h> +#include <parse_time.h> +#include "heimtools-commands.h" + +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 ((size_t)parse_flags("proxy", asn1_TicketFlags_units(), 0) == TicketFlags2int(ff)) + ret_flags->i = flags; + else + ret_flags->i = bitswap32(flags); +} + +struct ctx { + krb5_flags whichfields; + krb5_creds mcreds; +}; + +static krb5_boolean +matchfunc(krb5_context context, void *ptr, const krb5_creds *creds) +{ + struct ctx *ctx = ptr; + if (krb5_compare_creds(context, ctx->whichfields, &ctx->mcreds, creds)) + return TRUE; + return FALSE; +} + +int +copy_cred_cache(struct copy_cred_cache_options *opt, int argc, char **argv) +{ + krb5_error_code ret; + const char *from_name, *to_name; + krb5_ccache from_ccache, to_ccache; + unsigned int matched; + struct ctx ctx; + + memset(&ctx, 0, sizeof(ctx)); + + if (opt->service_string) { + ret = krb5_parse_name(heimtools_context, opt->service_string, &ctx.mcreds.server); + if (ret) + krb5_err(heimtools_context, 1, ret, "%s", opt->service_string); + } + if (opt->enctype_string) { + krb5_enctype enctype; + ret = krb5_string_to_enctype(heimtools_context, opt->enctype_string, &enctype); + if (ret) + krb5_err(heimtools_context, 1, ret, "%s", opt->enctype_string); + ctx.whichfields |= KRB5_TC_MATCH_KEYTYPE; + ctx.mcreds.session.keytype = enctype; + } + if (opt->flags_string) { + parse_ticket_flags(heimtools_context, opt->flags_string, &ctx.mcreds.flags); + ctx.whichfields |= KRB5_TC_MATCH_FLAGS; + } + if (opt->valid_for_string) { + time_t t = parse_time(opt->valid_for_string, "s"); + if(t < 0) + errx(1, "unknown time \"%s\"", opt->valid_for_string); + krb5_timeofday(heimtools_context, &ctx.mcreds.times.endtime); + ctx.mcreds.times.endtime += t; + ctx.whichfields |= KRB5_TC_MATCH_TIMES; + } + if (opt->fcache_version_integer) + krb5_set_fcache_version(heimtools_context, opt->fcache_version_integer); + + if (argc == 1) { + from_name = krb5_cc_default_name(heimtools_context); + to_name = argv[0]; + } else { + from_name = argv[0]; + to_name = argv[1]; + } + + ret = krb5_cc_resolve(heimtools_context, from_name, &from_ccache); + if (ret) + krb5_err(heimtools_context, 1, ret, "%s", from_name); + + if (opt->krbtgt_only_flag) { + krb5_principal client; + ret = krb5_cc_get_principal(heimtools_context, from_ccache, &client); + if (ret) + krb5_err(heimtools_context, 1, ret, "getting default principal"); + ret = krb5_make_principal(heimtools_context, &ctx.mcreds.server, + krb5_principal_get_realm(heimtools_context, client), + KRB5_TGS_NAME, + krb5_principal_get_realm(heimtools_context, client), + NULL); + if (ret) + krb5_err(heimtools_context, 1, ret, "constructing krbtgt principal"); + krb5_free_principal(heimtools_context, client); + } + ret = krb5_cc_resolve(heimtools_context, to_name, &to_ccache); + if (ret) + krb5_err(heimtools_context, 1, ret, "%s", to_name); + + ret = krb5_cc_copy_match_f(heimtools_context, from_ccache, to_ccache, + matchfunc, &ctx, &matched); + if (ret) + krb5_err(heimtools_context, 1, ret, "copying cred cache"); + + krb5_cc_close(heimtools_context, from_ccache); + if(matched == 0) + krb5_cc_destroy(heimtools_context, to_ccache); + else + krb5_cc_close(heimtools_context, to_ccache); + + return matched == 0; +} |