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