kdc/kdc-replay.c

   1 /*
   2  * Copyright (c) 2007 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 "kdc_locl.h"
  35
  36 static int version_flag;
  37 static int help_flag;
  38
  39 struct getargs args[] = {
  40     { "version",   0,   arg_flag, &version_flag, NULL, NULL },
  41     { "help",     'h',  arg_flag, &help_flag,    NULL, NULL }
  42 };
  43
  44 static const int num_args = sizeof(args) / sizeof(args[0]);
  45
  46 static void
  47 usage(int ret)
  48 {
  49     arg_printusage (args, num_args, NULL, "kdc-request-log-file");
  50     exit (ret);
  51 }
  52
  53 int
  54 main(int argc, char **argv)
  55 {
  56     krb5_error_code ret;
  57     krb5_context context;
  58     krb5_kdc_configuration *config;
  59     krb5_storage *sp;
  60     int fd, optidx = 0;
  61
  62     setprogname(argv[0]);
  63
  64     if(getarg(args, num_args, argc, argv, &optidx))
  65         usage(1);
  66
  67     if(help_flag)
  68         usage(0);
  69
  70     if(version_flag){
  71         print_version(NULL);
  72         exit(0);
  73     }
  74
  75     ret = krb5_init_context(&context);
  76     if (ret)
  77         errx (1, "krb5_init_context failed to parse configuration file");
  78
  79     ret = krb5_kdc_get_config(context, &config);
  80     if (ret)
  81         krb5_err(context, 1, ret, "krb5_kdc_default_config");
  82
  83     kdc_openlog(context, "kdc-replay", config);
  84
  85     ret = krb5_kdc_set_dbinfo(context, config);
  86     if (ret)
  87         krb5_err(context, 1, ret, "krb5_kdc_set_dbinfo");
  88
  89 #ifdef PKINIT
  90     if (config->enable_pkinit) {
  91         if (config->pkinit_kdc_identity == NULL)
  92             krb5_errx(context, 1, "pkinit enabled but no identity");
  93
  94         if (config->pkinit_kdc_anchors == NULL)
  95             krb5_errx(context, 1, "pkinit enabled but no X509 anchors");
  96
  97         krb5_kdc_pk_initialize(context, config,
  98                                config->pkinit_kdc_identity,
  99                                config->pkinit_kdc_anchors,
 100                                config->pkinit_kdc_cert_pool,
 101                                config->pkinit_kdc_revoke);
 102
 103     }
 104 #endif /* PKINIT */
 105
 106     if (argc != 2)
 107         errx(1, "argc != 2");
 108
 109     printf("kdc replay\n");
 110
 111     fd = open(argv[1], O_RDONLY);
 112     if (fd < 0)
 113         err(1, "open: %s", argv[1]);
 114
 115     sp = krb5_storage_from_fd(fd);
 116     if (sp == NULL)
 117         krb5_errx(context, 1, "krb5_storage_from_fd");
 118
 119     while(1) {
 120         struct sockaddr_storage sa;
 121         krb5_socklen_t salen = sizeof(sa);
 122         struct timeval tv;
 123         krb5_address a;
 124         krb5_data d, r;
 125         uint32_t t, clty, tag;
 126         char astr[80];
 127
 128         ret = krb5_ret_uint32(sp, &t);
 129         if (ret == HEIM_ERR_EOF)
 130             break;
 131         else if (ret)
 132             krb5_errx(context, 1, "krb5_ret_uint32(version)");
 133         if (t != 1)
 134             krb5_errx(context, 1, "version not 1");
 135         ret = krb5_ret_uint32(sp, &t);
 136         if (ret)
 137             krb5_errx(context, 1, "krb5_ret_uint32(time)");
 138         ret = krb5_ret_address(sp, &a);
 139         if (ret)
 140             krb5_errx(context, 1, "krb5_ret_address");
 141         ret = krb5_ret_data(sp, &d);
 142         if (ret)
 143             krb5_errx(context, 1, "krb5_ret_data");
 144         ret = krb5_ret_uint32(sp, &clty);
 145         if (ret)
 146             krb5_errx(context, 1, "krb5_ret_uint32(class|type)");
 147         ret = krb5_ret_uint32(sp, &tag);
 148         if (ret)
 149             krb5_errx(context, 1, "krb5_ret_uint32(tag)");
 150
 151
 152         ret = krb5_addr2sockaddr (context, &a, (struct sockaddr *)&sa,
 153                                   &salen, 88);
 154         if (ret == KRB5_PROG_ATYPE_NOSUPP)
 155             goto out;
 156         else if (ret)
 157             krb5_err(context, 1, ret, "krb5_addr2sockaddr");
 158
 159         ret = krb5_print_address(&a, astr, sizeof(astr), NULL);
 160         if (ret)
 161             krb5_err(context, 1, ret, "krb5_print_address");
 162
 163         printf("processing request from %s, %lu bytes\n",
 164                astr, (unsigned long)d.length);
 165
 166         r.length = 0;
 167         r.data = NULL;
 168
 169         tv.tv_sec = t;
 170         tv.tv_usec = 0;
 171
 172         krb5_kdc_update_time(&tv);
 173         krb5_set_real_time(context, tv.tv_sec, 0);
 174
 175         ret = krb5_kdc_process_request(context, config, d.data, d.length,
 176                                        &r, NULL, astr,
 177                                        (struct sockaddr *)&sa, 0);
 178         if (ret)
 179             krb5_err(context, 1, ret, "krb5_kdc_process_request");
 180
 181         if (r.length) {
 182             Der_class cl;
 183             Der_type ty;
 184             unsigned int tag2;
 185             ret = der_get_tag (r.data, r.length,
 186                                &cl, &ty, &tag2, NULL);
 187             if (ret)
 188                 krb5_err(context, 1, ret, "Could not decode replay data");
 189             if (MAKE_TAG(cl, ty, 0) != clty)
 190                 krb5_errx(context, 1, "class|type mismatch: %d != %d",
 191                           (int)MAKE_TAG(cl, ty, 0), (int)clty);
 192             if (tag != tag2)
 193                 krb5_errx(context, 1, "tag mismatch");
 194
 195             krb5_data_free(&r);
 196         } else {
 197             if (clty != 0xffffffff)
 198                 krb5_errx(context, 1, "clty not invalid");
 199             if (tag != 0xffffffff)
 200                 krb5_errx(context, 1, "tag not invalid");
 201         }
 202
 203     out:
 204         krb5_data_free(&d);
 205         krb5_free_address(context, &a);
 206     }
 207
 208     krb5_storage_free(sp);
 209     krb5_free_context(context);
 210
 211     printf("done\n");
 212
 213     return 0;
 214 }