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 #ifndef NO_UNIX_SOCKETS
  57
  58 static void
  59 set_socket_name(krb5_context context, struct sockaddr_un *un)
  60 {
  61     const char *fn = kadm5_log_signal_socket(context);
  62
  63     memset(un, 0, sizeof(*un));
  64     un->sun_family = AF_UNIX;
  65     strlcpy (un->sun_path, fn, sizeof(un->sun_path));
  66
  67 }
  68 #else
  69
  70 static void
  71 set_socket_info(krb5_context context, struct addrinfo **info)
  72 {
  73     kadm5_log_signal_socket_info(context, 0, info);
  74 }
  75
  76 #endif
  77
  78 static kadm5_ret_t
  79 find_db_spec(kadm5_server_context *ctx)
  80 {
  81     krb5_context context = ctx->context;
  82     struct hdb_dbinfo *info, *d;
  83     krb5_error_code ret;
  84
  85     if (ctx->config.realm) {
  86         /* fetch the databases */
  87         ret = hdb_get_dbinfo(context, &info);
  88         if (ret)
  89             return ret;
  90
  91         d = NULL;
  92         while ((d = hdb_dbinfo_get_next(info, d)) != NULL) {
  93             const char *p = hdb_dbinfo_get_realm(context, d);
  94
  95             /* match default (realm-less) */
  96             if(p != NULL && strcmp(ctx->config.realm, p) != 0)
  97                 continue;
  98
  99             p = hdb_dbinfo_get_dbname(context, d);
 100             if (p)
 101                 ctx->config.dbname = strdup(p);
 102
 103             p = hdb_dbinfo_get_acl_file(context, d);
 104             if (p)
 105                 ctx->config.acl_file = strdup(p);
 106
 107             p = hdb_dbinfo_get_mkey_file(context, d);
 108             if (p)
 109                 ctx->config.stash_file = strdup(p);
 110
 111             p = hdb_dbinfo_get_log_file(context, d);
 112             if (p)
 113                 ctx->log_context.log_file = strdup(p);
 114             break;
 115         }
 116         hdb_free_dbinfo(context, &info);
 117     }
 118
 119     /* If any of the values was unset, pick up the default value */
 120
 121     if (ctx->config.dbname == NULL)
 122         ctx->config.dbname = strdup(hdb_default_db(context));
 123     if (ctx->config.acl_file == NULL)
 124         asprintf(&ctx->config.acl_file, "%s/kadmind.acl", hdb_db_dir(context));
 125     if (ctx->config.stash_file == NULL)
 126         asprintf(&ctx->config.stash_file, "%s/m-key", hdb_db_dir(context));
 127     if (ctx->log_context.log_file == NULL)
 128         asprintf(&ctx->log_context.log_file, "%s/log", hdb_db_dir(context));
 129
 130 #ifndef NO_UNIX_SOCKETS
 131     set_socket_name(context, &ctx->log_context.socket_name);
 132 #else
 133     set_socket_info(context, &ctx->log_context.socket_info);
 134 #endif
 135
 136     return 0;
 137 }
 138
 139 kadm5_ret_t
 140 _kadm5_s_init_context(kadm5_server_context **ctx,
 141                       kadm5_config_params *params,
 142                       krb5_context context)
 143 {
 144     *ctx = malloc(sizeof(**ctx));
 145     if(*ctx == NULL)
 146         return ENOMEM;
 147     memset(*ctx, 0, sizeof(**ctx));
 148     set_funcs(*ctx);
 149     (*ctx)->context = context;
 150     krb5_add_et_list (context, initialize_kadm5_error_table_r);
 151 #define is_set(M) (params && params->mask & KADM5_CONFIG_ ## M)
 152     if(is_set(REALM))
 153         (*ctx)->config.realm = strdup(params->realm);
 154     else
 155         krb5_get_default_realm(context, &(*ctx)->config.realm);
 156     if(is_set(DBNAME))
 157         (*ctx)->config.dbname = strdup(params->dbname);
 158     if(is_set(ACL_FILE))
 159         (*ctx)->config.acl_file = strdup(params->acl_file);
 160     if(is_set(STASH_FILE))
 161         (*ctx)->config.stash_file = strdup(params->stash_file);
 162
 163     find_db_spec(*ctx);
 164
 165     /* PROFILE can't be specified for now */
 166     /* KADMIND_PORT is supposed to be used on the server also,
 167        but this doesn't make sense */
 168     /* ADMIN_SERVER is client only */
 169     /* ADNAME is not used at all (as far as I can tell) */
 170     /* ADB_LOCKFILE ditto */
 171     /* DICT_FILE */
 172     /* ADMIN_KEYTAB */
 173     /* MKEY_FROM_KEYBOARD is not supported */
 174     /* MKEY_NAME neither */
 175     /* ENCTYPE */
 176     /* MAX_LIFE */
 177     /* MAX_RLIFE */
 178     /* EXPIRATION */
 179     /* FLAGS */
 180     /* ENCTYPES */
 181
 182     return 0;
 183 }
 184
 185 HDB *
 186 _kadm5_s_get_db(void *server_handle)
 187 {
 188     kadm5_server_context *context = server_handle;
 189     return context->db;
 190 }