1/* 2 * Copyright (c) 2004 Kungliga Tekniska Högskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 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. 16 * 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. 20 * 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. 32 */ 33 34#include "kuser_locl.h" 35#include <config.h> 36#include <parse_units.h> 37#include <parse_time.h> 38#include "kcc-commands.h" 39 40static int32_t 41bitswap32(int32_t b) 42{ 43 int32_t r = 0; 44 int i; 45 for (i = 0; i < 32; i++) { 46 r = r << 1 | (b & 1); 47 b = b >> 1; 48 } 49 return r; 50} 51 52static void 53parse_ticket_flags(krb5_context context, 54 const char *string, krb5_ticket_flags *ret_flags) 55{ 56 TicketFlags ff; 57 int flags = parse_flags(string, asn1_TicketFlags_units(), 0); 58 if (flags == -1) /* XXX */ 59 krb5_errx(context, 1, "bad flags specified: \"%s\"", string); 60 61 memset(&ff, 0, sizeof(ff)); 62 ff.proxy = 1; 63 if ((size_t)parse_flags("proxy", asn1_TicketFlags_units(), 0) == TicketFlags2int(ff)) 64 ret_flags->i = flags; 65 else 66 ret_flags->i = bitswap32(flags); 67} 68 69struct ctx { 70 krb5_flags whichfields; 71 krb5_creds mcreds; 72}; 73 74static krb5_boolean 75matchfunc(krb5_context context, void *ptr, const krb5_creds *creds) 76{ 77 struct ctx *ctx = ptr; 78 if (krb5_compare_creds(context, ctx->whichfields, &ctx->mcreds, creds)) 79 return TRUE; 80 return FALSE; 81} 82 83int 84copy_cred_cache(struct copy_cred_cache_options *opt, int argc, char **argv) 85{ 86 krb5_error_code ret; 87 const char *from_name, *to_name; 88 krb5_ccache from_ccache, to_ccache; 89 unsigned int matched; 90 struct ctx ctx; 91 92 memset(&ctx, 0, sizeof(ctx)); 93 94 if(opt->version_flag) { 95 print_version(NULL); 96 exit(0); 97 } 98 99 if (opt->service_string) { 100 ret = krb5_parse_name(kcc_context, opt->service_string, &ctx.mcreds.server); 101 if (ret) 102 krb5_err(kcc_context, 1, ret, "%s", opt->service_string); 103 } 104 if (opt->enctype_string) { 105 krb5_enctype enctype; 106 ret = krb5_string_to_enctype(kcc_context, opt->enctype_string, &enctype); 107 if (ret) 108 krb5_err(kcc_context, 1, ret, "%s", opt->enctype_string); 109 ctx.whichfields |= KRB5_TC_MATCH_KEYTYPE; 110 ctx.mcreds.session.keytype = enctype; 111 } 112 if (opt->flags_string) { 113 parse_ticket_flags(kcc_context, opt->flags_string, &ctx.mcreds.flags); 114 ctx.whichfields |= KRB5_TC_MATCH_FLAGS; 115 } 116 if (opt->valid_for_string) { 117 time_t t = parse_time(opt->valid_for_string, "s"); 118 if(t < 0) 119 errx(1, "unknown time \"%s\"", opt->valid_for_string); 120 ctx.mcreds.times.endtime = time(NULL) + t; 121 ctx.whichfields |= KRB5_TC_MATCH_TIMES; 122 } 123 if (opt->fcache_version_integer) 124 krb5_set_fcache_version(kcc_context, opt->fcache_version_integer); 125 126 if (argc == 1) { 127 from_name = krb5_cc_default_name(kcc_context); 128 to_name = argv[0]; 129 } else { 130 from_name = argv[0]; 131 to_name = argv[1]; 132 } 133 134 ret = krb5_cc_resolve(kcc_context, from_name, &from_ccache); 135 if (ret) 136 krb5_err(kcc_context, 1, ret, "%s", from_name); 137 138 if (opt->krbtgt_only_flag) { 139 krb5_principal client; 140 ret = krb5_cc_get_principal(kcc_context, from_ccache, &client); 141 if (ret) 142 krb5_err(kcc_context, 1, ret, "getting default principal"); 143 ret = krb5_make_principal(kcc_context, &ctx.mcreds.server, 144 krb5_principal_get_realm(kcc_context, client), 145 KRB5_TGS_NAME, 146 krb5_principal_get_realm(kcc_context, client), 147 NULL); 148 if (ret) 149 krb5_err(kcc_context, 1, ret, "constructing krbtgt principal"); 150 krb5_free_principal(kcc_context, client); 151 } 152 ret = krb5_cc_resolve(kcc_context, to_name, &to_ccache); 153 if (ret) 154 krb5_err(kcc_context, 1, ret, "%s", to_name); 155 156 ret = krb5_cc_copy_match_f(kcc_context, from_ccache, to_ccache, 157 matchfunc, &ctx, &matched); 158 if (ret) 159 krb5_err(kcc_context, 1, ret, "copying cred cache"); 160 161 krb5_cc_close(kcc_context, from_ccache); 162 if(matched == 0) 163 krb5_cc_destroy(kcc_context, to_ccache); 164 else 165 krb5_cc_close(kcc_context, to_ccache); 166 167 return matched == 0; 168} 169