crypto/dist/heimdal/lib/kadm5/context_s.c

   1 /*
   2  * Copyright (c) 1997 - 2002 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 "kadm5_locl.h"
  35
  36 __RCSID("$Heimdal: context_s.c 22211 2007-12-07 19:27:27Z lha $"
  37         "$NetBSD$");
  38
  39 static void
  40 set_funcs(kadm5_server_context *c)
  41 {
  42 #define SET(C, F) (C)->funcs.F = kadm5_s_ ## F
  43     SET(c, chpass_principal);
  44     SET(c, chpass_principal_with_key);
  45     SET(c, create_principal);
  46     SET(c, delete_principal);
  47     SET(c, destroy);
  48     SET(c, flush);
  49     SET(c, get_principal);
  50     SET(c, get_principals);
  51     SET(c, get_privs);
  52     SET(c, modify_principal);
  53     SET(c, randkey_principal);
  54     SET(c, rename_principal);
  55 }
  56
  57 static void
  58 set_socket_name(krb5_context context, struct sockaddr_un *un)
  59 {
  60     const char *fn = kadm5_log_signal_socket(context);
  61
  62     memset(un, 0, sizeof(*un));
  63     un->sun_family = AF_UNIX;
  64     strlcpy (un->sun_path, fn, sizeof(un->sun_path));
  65 }
  66
  67 static kadm5_ret_t
  68 find_db_spec(kadm5_server_context *ctx)
  69 {
  70     krb5_context context = ctx->context;
  71     struct hdb_dbinfo *info, *d;
  72     krb5_error_code ret;
  73
  74     if (ctx->config.realm) {
  75         /* fetch the databases */
  76         ret = hdb_get_dbinfo(context, &info);
  77         if (ret)
  78             return ret;
  79
  80         d = NULL;
  81         while ((d = hdb_dbinfo_get_next(info, d)) != NULL) {
  82             const char *p = hdb_dbinfo_get_realm(context, d);
  83
  84             /* match default (realm-less) */
  85             if(p != NULL && strcmp(ctx->config.realm, p) != 0)
  86                 continue;
  87
  88             p = hdb_dbinfo_get_dbname(context, d);
  89             if (p)
  90                 ctx->config.dbname = strdup(p);
  91
  92             p = hdb_dbinfo_get_acl_file(context, d);
  93             if (p)
  94                 ctx->config.acl_file = strdup(p);
  95
  96             p = hdb_dbinfo_get_mkey_file(context, d);
  97             if (p)
  98                 ctx->config.stash_file = strdup(p);
  99
 100             p = hdb_dbinfo_get_log_file(context, d);
 101             if (p)
 102                 ctx->log_context.log_file = strdup(p);
 103             break;
 104         }
 105         hdb_free_dbinfo(context, &info);
 106     }
 107
 108     /* If any of the values was unset, pick up the default value */
 109
 110     if (ctx->config.dbname == NULL)
 111         ctx->config.dbname = strdup(hdb_default_db(context));
 112     if (ctx->config.acl_file == NULL)
 113         asprintf(&ctx->config.acl_file, "%s/kadmind.acl", hdb_db_dir(context));
 114     if (ctx->config.stash_file == NULL)
 115         asprintf(&ctx->config.stash_file, "%s/m-key", hdb_db_dir(context));
 116     if (ctx->log_context.log_file == NULL)
 117         asprintf(&ctx->log_context.log_file, "%s/log", hdb_db_dir(context));
 118
 119     set_socket_name(context, &ctx->log_context.socket_name);
 120
 121     return 0;
 122 }
 123
 124 kadm5_ret_t
 125 _kadm5_s_init_context(kadm5_server_context **ctx,
 126                       kadm5_config_params *params,
 127                       krb5_context context)
 128 {
 129     *ctx = malloc(sizeof(**ctx));
 130     if(*ctx == NULL)
 131         return ENOMEM;
 132     memset(*ctx, 0, sizeof(**ctx));
 133     set_funcs(*ctx);
 134     (*ctx)->context = context;
 135     krb5_add_et_list (context, initialize_kadm5_error_table_r);
 136 #define is_set(M) (params && params->mask & KADM5_CONFIG_ ## M)
 137     if(is_set(REALM))
 138         (*ctx)->config.realm = strdup(params->realm);
 139     else
 140         krb5_get_default_realm(context, &(*ctx)->config.realm);
 141     if(is_set(DBNAME))
 142         (*ctx)->config.dbname = strdup(params->dbname);
 143     if(is_set(ACL_FILE))
 144         (*ctx)->config.acl_file = strdup(params->acl_file);
 145     if(is_set(STASH_FILE))
 146         (*ctx)->config.stash_file = strdup(params->stash_file);
 147
 148     find_db_spec(*ctx);
 149
 150     /* PROFILE can't be specified for now */
 151     /* KADMIND_PORT is supposed to be used on the server also,
 152        but this doesn't make sense */
 153     /* ADMIN_SERVER is client only */
 154     /* ADNAME is not used at all (as far as I can tell) */
 155     /* ADB_LOCKFILE ditto */
 156     /* DICT_FILE */
 157     /* ADMIN_KEYTAB */
 158     /* MKEY_FROM_KEYBOARD is not supported */
 159     /* MKEY_NAME neither */
 160     /* ENCTYPE */
 161     /* MAX_LIFE */
 162     /* MAX_RLIFE */
 163     /* EXPIRATION */
 164     /* FLAGS */
 165     /* ENCTYPES */
 166
 167     return 0;
 168 }
 169
 170 HDB *
 171 _kadm5_s_get_db(void *server_handle)
 172 {
 173     kadm5_server_context *context = server_handle;
 174     return context->db;
 175 }