kdc/test_token_validator.c

   1 #include "kdc_locl.h"
   2
   3 static int help_flag;
   4 static int version_flag;
   5 static char *realm;
   6 static char *app;
   7 static struct getarg_strings audiences;
   8
   9 struct getargs args[] = {
  10     {   "app",          'A',    arg_string,    &app,
  11         "app name (krb5.conf section)", "APP-NAME" },
  12     {   "help",         'h',    arg_flag,    &help_flag,
  13         "Print usage message", NULL },
  14     {   NULL,           'r',    arg_string,  &realm,
  15         "Realm name for plugin configuration", "REALM" },
  16     {   NULL,           'a',    arg_strings, &audiences,
  17         "expected token acceptor audience (hostname)", "ACCEPTOR-HOSTNAME" },
  18     {   "version",      'v',    arg_flag,    &version_flag, "Print version", NULL }
  19 };
  20 size_t num_args = sizeof(args) / sizeof(args[0]);
  21
  22 static int
  23 usage(int e)
  24 {
  25     arg_printusage(args, num_args, NULL, "TOKEN-TYPE TOKEN");
  26     exit(e);
  27     return e;
  28 }
  29
  30 static const char *sysplugin_dirs[] =  {
  31 #ifdef _WIN32
  32     "$ORIGIN",
  33 #else
  34     "$ORIGIN/../lib/plugin/kdc",
  35 #endif
  36 #ifdef __APPLE__
  37     LIBDIR "/plugin/kdc",
  38 #endif
  39     NULL
  40 };
  41
  42 static void
  43 load_plugins(krb5_context context)
  44 {
  45     const char * const *dirs = sysplugin_dirs;
  46 #ifndef _WIN32
  47     char **cfdirs;
  48
  49     cfdirs = krb5_config_get_strings(context, NULL, "kdc", "plugin_dir", NULL);
  50     if (cfdirs)
  51         dirs = (const char * const *)cfdirs;
  52 #endif
  53
  54     _krb5_load_plugins(context, "kdc", (const char **)dirs);
  55
  56 #ifndef _WIN32
  57     krb5_config_free_strings(cfdirs);
  58 #endif
  59 }
  60
  61 int
  62 main(int argc, char **argv)
  63 {
  64     krb5_error_code ret;
  65     krb5_context context;
  66     krb5_data token;
  67     const char *token_type;
  68     krb5_principal actual_princ = NULL;
  69     krb5_times token_times;
  70     size_t bufsz = 0;
  71     char *buf = NULL;
  72     char *s = NULL;
  73     int optidx = 0;
  74
  75     setprogname(argv[0]);
  76     if (getarg(args, num_args, argc, argv, &optidx))
  77         return usage(1);
  78     if (help_flag)
  79         return usage(0);
  80     if (version_flag) {
  81         print_version(argv[0]);
  82         return 0;
  83     }
  84
  85     argc -= optidx;
  86     argv += optidx;
  87
  88     if (argc != 2)
  89         usage(1);
  90
  91     if ((ret = krb5_init_context(&context)))
  92         err(1, "Could not initialize krb5_context");
  93
  94     load_plugins(context);
  95
  96     token_type = argv[0];
  97     token.data = argv[1];
  98     if (strcmp(token.data, "-") == 0) {
  99         if (getline(&buf, &bufsz, stdin) < 0)
 100             err(1, "Could not read token from stdin");
 101         token.length = bufsz;
 102         token.data = buf;
 103     } else {
 104         token.length = strlen(token.data);
 105     }
 106     if ((ret = kdc_validate_token(context, realm, token_type, &token,
 107                                   (const char * const *)audiences.strings,
 108                                   audiences.num_strings, &actual_princ,
 109                                   &token_times)))
 110         krb5_err(context, 1, ret, "Could not validate %s token", token_type);
 111     if (actual_princ && (ret = krb5_unparse_name(context, actual_princ, &s)))
 112         krb5_err(context, 1, ret, "Could not display principal name");
 113     if (s)
 114         printf("Token is valid.  Actual principal: %s\n", s);
 115     else
 116         printf("Token is valid.");
 117     _krb5_unload_plugins(context, "kdc");
 118     krb5_free_principal(context, actual_princ);
 119     krb5_free_context(context);
 120     return 0;
 121 }