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-rw-r--r--third_party/heimdal/lib/kadm5/context_s.c316
1 files changed, 316 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/kadm5/context_s.c b/third_party/heimdal/lib/kadm5/context_s.c
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+++ b/third_party/heimdal/lib/kadm5/context_s.c
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+/*
+ * Copyright (c) 1997 - 2002 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "kadm5_locl.h"
+
+RCSID("$Id$");
+
+static kadm5_ret_t
+kadm5_s_lock(void *server_handle)
+{
+ kadm5_server_context *context = server_handle;
+ kadm5_ret_t ret;
+
+ if (context->keep_open) {
+ /*
+ * We open/close around every operation, but we retain the DB
+ * open if the DB was locked with a prior call to kadm5_lock(),
+ * so if it's open here that must be because the DB is locked.
+ */
+ heim_assert(context->db->lock_count > 0,
+ "Internal error in tracking HDB locks");
+ return KADM5_ALREADY_LOCKED;
+ }
+
+ ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
+ if (ret)
+ return ret;
+
+ ret = context->db->hdb_lock(context->context, context->db, HDB_WLOCK);
+ if (ret) {
+ (void) context->db->hdb_close(context->context, context->db);
+ return ret;
+ }
+
+ /*
+ * Attempt to recover the log. This will generally fail on slaves,
+ * and we can't tell if we're on a slave here.
+ *
+ * Perhaps we could set a flag in the kadm5_server_context to
+ * indicate whether a read has been done without recovering the log,
+ * in which case we could fail any subsequent writes.
+ */
+ if (kadm5_log_init(context) == 0)
+ (void) kadm5_log_end(context);
+
+ context->keep_open = 1;
+ return 0;
+}
+
+static kadm5_ret_t
+kadm5_s_unlock(void *server_handle)
+{
+ kadm5_server_context *context = server_handle;
+ kadm5_ret_t ret;
+
+ if (!context->keep_open)
+ return KADM5_NOT_LOCKED;
+
+ context->keep_open = 0;
+ ret = context->db->hdb_unlock(context->context, context->db);
+ (void) context->db->hdb_close(context->context, context->db);
+ return ret;
+}
+
+static void
+set_funcs(kadm5_server_context *c)
+{
+#define SET(C, F) (C)->funcs.F = kadm5_s_ ## F
+ SET(c, chpass_principal);
+ SET(c, chpass_principal_with_key);
+ SET(c, create_principal);
+ SET(c, delete_principal);
+ SET(c, destroy);
+ SET(c, flush);
+ SET(c, get_principal);
+ SET(c, get_principals);
+ SET(c, get_privs);
+ SET(c, modify_principal);
+ SET(c, prune_principal);
+ SET(c, randkey_principal);
+ SET(c, rename_principal);
+ SET(c, lock);
+ SET(c, unlock);
+ SET(c, setkey_principal_3);
+ SET(c, iter_principals);
+ SET(c, dup_context);
+}
+
+#ifndef NO_UNIX_SOCKETS
+
+static void
+set_socket_name(krb5_context context, struct sockaddr_un *un)
+{
+ const char *fn = kadm5_log_signal_socket(context);
+
+ memset(un, 0, sizeof(*un));
+ un->sun_family = AF_UNIX;
+ strlcpy (un->sun_path, fn, sizeof(un->sun_path));
+
+}
+#else
+
+static void
+set_socket_info(krb5_context context, struct addrinfo **info)
+{
+ kadm5_log_signal_socket_info(context, 0, info);
+}
+
+#endif
+
+static kadm5_ret_t
+find_db_spec(kadm5_server_context *ctx)
+{
+ krb5_context context = ctx->context;
+ struct hdb_dbinfo *info, *d;
+ krb5_error_code ret;
+ int aret;
+
+ if (ctx->config.realm) {
+ /* fetch the databases */
+ ret = hdb_get_dbinfo(context, &info);
+ if (ret)
+ return ret;
+
+ d = NULL;
+ while ((d = hdb_dbinfo_get_next(info, d)) != NULL) {
+ const char *p = hdb_dbinfo_get_realm(context, d);
+
+ /* match default (realm-less) */
+ if(p != NULL && strcmp(ctx->config.realm, p) != 0)
+ continue;
+
+ p = hdb_dbinfo_get_dbname(context, d);
+ if (p) {
+ ctx->config.dbname = strdup(p);
+ if (ctx->config.dbname == NULL) {
+ hdb_free_dbinfo(context, &info);
+ return krb5_enomem(context);
+ }
+ }
+
+ p = hdb_dbinfo_get_acl_file(context, d);
+ if (p) {
+ ctx->config.acl_file = strdup(p);
+ if (ctx->config.acl_file == NULL) {
+ hdb_free_dbinfo(context, &info);
+ return krb5_enomem(context);
+ }
+ }
+
+ p = hdb_dbinfo_get_mkey_file(context, d);
+ if (p) {
+ ctx->config.stash_file = strdup(p);
+ if (ctx->config.stash_file == NULL) {
+ hdb_free_dbinfo(context, &info);
+ return krb5_enomem(context);
+ }
+ }
+
+ p = hdb_dbinfo_get_log_file(context, d);
+ if (p) {
+ ctx->log_context.log_file = strdup(p);
+ if (ctx->log_context.log_file == NULL) {
+ hdb_free_dbinfo(context, &info);
+ return krb5_enomem(context);
+ }
+ }
+ break;
+ }
+ hdb_free_dbinfo(context, &info);
+ }
+
+ /* If any of the values was unset, pick up the default value */
+
+ if (ctx->config.dbname == NULL) {
+ ctx->config.dbname = strdup(hdb_default_db(context));
+ if (ctx->config.dbname == NULL)
+ return krb5_enomem(context);
+ }
+ if (ctx->config.acl_file == NULL) {
+ aret = asprintf(&ctx->config.acl_file, "%s/kadmind.acl",
+ hdb_db_dir(context));
+ if (aret == -1)
+ return krb5_enomem(context);
+ }
+ if (ctx->config.stash_file == NULL) {
+ aret = asprintf(&ctx->config.stash_file, "%s/m-key",
+ hdb_db_dir(context));
+ if (aret == -1)
+ return krb5_enomem(context);
+ }
+ if (ctx->log_context.log_file == NULL) {
+ aret = asprintf(&ctx->log_context.log_file, "%s/log",
+ hdb_db_dir(context));
+ if (aret == -1)
+ return krb5_enomem(context);
+ }
+
+#ifndef NO_UNIX_SOCKETS
+ set_socket_name(context, &ctx->log_context.socket_name);
+#else
+ set_socket_info(context, &ctx->log_context.socket_info);
+#endif
+
+ return 0;
+}
+
+kadm5_ret_t
+_kadm5_s_init_context(kadm5_server_context **ctx,
+ kadm5_config_params *params,
+ krb5_context context)
+{
+ kadm5_ret_t ret = 0;
+
+ *ctx = calloc(1, sizeof(**ctx));
+ if (*ctx == NULL)
+ return krb5_enomem(context);
+ (*ctx)->log_context.socket_fd = rk_INVALID_SOCKET;
+
+ set_funcs(*ctx);
+ (*ctx)->context = context;
+ krb5_add_et_list (context, initialize_kadm5_error_table_r);
+
+#define is_set(M) (params && params->mask & KADM5_CONFIG_ ## M)
+ if (params)
+ (*ctx)->config.mask = params->mask;
+ if (is_set(REALM)) {
+ (*ctx)->config.realm = strdup(params->realm);
+ if ((*ctx)->config.realm == NULL)
+ return krb5_enomem(context);
+ } else {
+ ret = krb5_get_default_realm(context, &(*ctx)->config.realm);
+ if (ret)
+ return ret;
+ }
+ if (is_set(DBNAME)) {
+ (*ctx)->config.dbname = strdup(params->dbname);
+ if ((*ctx)->config.dbname == NULL)
+ return krb5_enomem(context);
+ }
+ if (is_set(ACL_FILE)) {
+ (*ctx)->config.acl_file = strdup(params->acl_file);
+ if ((*ctx)->config.acl_file == NULL)
+ return krb5_enomem(context);
+ }
+ if (is_set(STASH_FILE)) {
+ (*ctx)->config.stash_file = strdup(params->stash_file);
+ if ((*ctx)->config.stash_file == NULL)
+ return krb5_enomem(context);
+ }
+
+ ret = find_db_spec(*ctx);
+ if (ret == 0)
+ ret = _kadm5_s_init_hooks(*ctx);
+ if (ret != 0) {
+ kadm5_s_destroy(*ctx);
+ *ctx = NULL;
+ return ret;
+ }
+
+ /* PROFILE can't be specified for now */
+ /* KADMIND_PORT is supposed to be used on the server also,
+ but this doesn't make sense */
+ /* ADMIN_SERVER is client only */
+ /* ADNAME is not used at all (as far as I can tell) */
+ /* ADB_LOCKFILE ditto */
+ /* DICT_FILE */
+ /* ADMIN_KEYTAB */
+ /* MKEY_FROM_KEYBOARD is not supported */
+ /* MKEY_NAME neither */
+ /* ENCTYPE */
+ /* MAX_LIFE */
+ /* MAX_RLIFE */
+ /* EXPIRATION */
+ /* FLAGS */
+ /* ENCTYPES */
+
+ return 0;
+}
+
+HDB *
+_kadm5_s_get_db(void *server_handle)
+{
+ kadm5_server_context *context = server_handle;
+ return context->db;
+}
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