226 lines
6.8 KiB
C
226 lines
6.8 KiB
C
/*
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* Copyright (c) 1997 - 2000 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "kadm5_locl.h"
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RCSID("$Id: context_s.c,v 1.15 2000/05/12 15:22:33 assar Exp $");
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static void
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set_funcs(kadm5_server_context *c)
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{
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#define SET(C, F) (C)->funcs.F = kadm5_s_ ## F
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SET(c, chpass_principal);
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SET(c, chpass_principal_with_key);
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SET(c, create_principal);
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SET(c, delete_principal);
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SET(c, destroy);
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SET(c, flush);
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SET(c, get_principal);
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SET(c, get_principals);
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SET(c, get_privs);
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SET(c, modify_principal);
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SET(c, randkey_principal);
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SET(c, rename_principal);
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}
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struct database_spec {
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char *dbpath;
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char *logfile;
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char *mkeyfile;
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char *aclfile;
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};
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static void
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set_field(krb5_context context, krb5_config_binding *binding,
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const char *dbname, const char *name, const char *ext,
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char **variable)
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{
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const char *p;
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if (*variable != NULL)
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free (*variable);
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p = krb5_config_get_string(context, binding, name, NULL);
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if(p)
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*variable = strdup(p);
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else {
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p = strrchr(dbname, '.');
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if(p == NULL)
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asprintf(variable, "%s.%s", dbname, ext);
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else
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asprintf(variable, "%.*s.%s", (int)(p - dbname), dbname, ext);
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}
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}
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static void
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set_socket_name(const char *dbname, struct sockaddr_un *un)
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{
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const char *p;
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memset(un, 0, sizeof(*un));
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un->sun_family = AF_UNIX;
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p = strrchr(dbname, '.');
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if(p == NULL)
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snprintf(un->sun_path, sizeof(un->sun_path), "%s.signal",
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dbname);
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else
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snprintf(un->sun_path, sizeof(un->sun_path), "%.*s.signal",
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(int)(p - dbname), dbname);
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}
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static void
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set_config(kadm5_server_context *ctx,
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krb5_config_binding *binding)
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{
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const char *p;
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if(ctx->config.dbname == NULL) {
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p = krb5_config_get_string(ctx->context, binding, "dbname", NULL);
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if(p)
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ctx->config.dbname = strdup(p);
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else
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ctx->config.dbname = strdup(HDB_DEFAULT_DB);
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}
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if(ctx->log_context.log_file == NULL)
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set_field(ctx->context, binding, ctx->config.dbname,
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"log_file", "log", &ctx->log_context.log_file);
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set_socket_name(ctx->config.dbname, &ctx->log_context.socket_name);
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if(ctx->config.acl_file == NULL)
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set_field(ctx->context, binding, ctx->config.dbname,
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"acl_file", "acl", &ctx->config.acl_file);
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/* XXX calling a file a `stash file' isn't very clever */
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if(ctx->config.stash_file == NULL)
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set_field(ctx->context, binding, ctx->config.dbname,
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"mkey_file", "mkey", &ctx->config.stash_file);
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}
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static kadm5_ret_t
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find_db_spec(kadm5_server_context *ctx)
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{
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krb5_config_binding *top_binding = NULL;
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krb5_config_binding *db_binding;
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krb5_config_binding *default_binding = NULL;
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krb5_context context = ctx->context;
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while((db_binding = (krb5_config_binding *)
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krb5_config_get_next(context,
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NULL, &top_binding,
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krb5_config_list,
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"kdc",
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"database",
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NULL))) {
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const char *p;
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p = krb5_config_get_string(context, db_binding, "realm", NULL);
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if(p == NULL) {
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if(default_binding) {
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krb5_warnx(context, "WARNING: more than one realm-less "
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"database specification");
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krb5_warnx(context, "WARNING: using the first encountered");
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} else
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default_binding = db_binding;
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continue;
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}
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if(strcmp(ctx->config.realm, p) != 0)
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continue;
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set_config(ctx, db_binding);
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return 0;
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}
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if(default_binding)
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set_config(ctx, default_binding);
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else {
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ctx->config.dbname = strdup(HDB_DEFAULT_DB);
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ctx->config.acl_file = strdup(HDB_DB_DIR "/kadmind.acl");
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ctx->config.stash_file = strdup(HDB_DB_DIR "/m-key");
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ctx->log_context.log_file = strdup(HDB_DB_DIR "/log");
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memset(&ctx->log_context.socket_name, 0,
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sizeof(ctx->log_context.socket_name));
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ctx->log_context.socket_name.sun_family = AF_UNIX;
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strlcpy(ctx->log_context.socket_name.sun_path,
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KADM5_LOG_SIGNAL,
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sizeof(ctx->log_context.socket_name.sun_path));
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}
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return 0;
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}
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kadm5_ret_t
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_kadm5_s_init_context(kadm5_server_context **ctx,
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kadm5_config_params *params,
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krb5_context context)
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{
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*ctx = malloc(sizeof(**ctx));
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if(*ctx == NULL)
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return ENOMEM;
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memset(*ctx, 0, sizeof(**ctx));
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set_funcs(*ctx);
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(*ctx)->context = context;
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krb5_add_et_list (context, initialize_kadm5_error_table_r);
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#define is_set(M) (params && params->mask & KADM5_CONFIG_ ## M)
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if(is_set(REALM))
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(*ctx)->config.realm = strdup(params->realm);
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else
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krb5_get_default_realm(context, &(*ctx)->config.realm);
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if(is_set(DBNAME))
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(*ctx)->config.dbname = strdup(params->dbname);
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if(is_set(ACL_FILE))
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(*ctx)->config.acl_file = strdup(params->acl_file);
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if(is_set(STASH_FILE))
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(*ctx)->config.stash_file = strdup(params->stash_file);
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find_db_spec(*ctx);
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/* PROFILE can't be specified for now */
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/* KADMIND_PORT is supposed to be used on the server also,
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but this doesn't make sense */
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/* ADMIN_SERVER is client only */
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/* ADNAME is not used at all (as far as I can tell) */
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/* ADB_LOCKFILE ditto */
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/* DICT_FILE */
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/* ADMIN_KEYTAB */
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/* MKEY_FROM_KEYBOARD is not supported */
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/* MKEY_NAME neither */
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/* ENCTYPE */
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/* MAX_LIFE */
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/* MAX_RLIFE */
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/* EXPIRATION */
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/* FLAGS */
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/* ENCTYPES */
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return 0;
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}
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HDB *
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_kadm5_s_get_db(void *server_handle)
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{
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kadm5_server_context *context = server_handle;
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return context->db;
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}
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