ed4b1be5bb
kadm5_get_principals() is not online. If you have... many principals,
it will be slow. At least it's no longer quadratic, but it, it's still
slow. Time to add a version that uses a callback:
kadm5_ret_t
kadm5_iter_principals(void *server_handle,
const char *expression,
int (*cb)(void *, const char *),
void *cbdata)
The callback gets called with the given callback data and one principal
name (unparsed).
Note that the callback MUST NOT re-enter the kadm5 library with the
*same* kadm handle. For example, the kadmin protocol doesn't really
multiplex requests well, though it could pipeline them, but it can't
pipeline when LIST is running, not with the protocol implemented here,
so a separate connection is needed, and that requires a separate kadm
handle. We add kadm5_dup_context() to deal with this.
317 lines
8.7 KiB
C
317 lines
8.7 KiB
C
/*
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* Copyright (c) 1997 - 2002 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("$Id$");
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static kadm5_ret_t
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kadm5_s_lock(void *server_handle)
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{
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kadm5_server_context *context = server_handle;
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kadm5_ret_t ret;
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if (context->keep_open) {
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/*
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* We open/close around every operation, but we retain the DB
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* open if the DB was locked with a prior call to kadm5_lock(),
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* so if it's open here that must be because the DB is locked.
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*/
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heim_assert(context->db->lock_count > 0,
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"Internal error in tracking HDB locks");
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return KADM5_ALREADY_LOCKED;
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}
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ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
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if (ret)
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return ret;
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ret = context->db->hdb_lock(context->context, context->db, HDB_WLOCK);
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if (ret) {
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(void) context->db->hdb_close(context->context, context->db);
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return ret;
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}
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/*
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* Attempt to recover the log. This will generally fail on slaves,
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* and we can't tell if we're on a slave here.
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*
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* Perhaps we could set a flag in the kadm5_server_context to
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* indicate whether a read has been done without recovering the log,
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* in which case we could fail any subsequent writes.
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*/
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if (kadm5_log_init(context) == 0)
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(void) kadm5_log_end(context);
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context->keep_open = 1;
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return 0;
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}
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static kadm5_ret_t
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kadm5_s_unlock(void *server_handle)
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{
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kadm5_server_context *context = server_handle;
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kadm5_ret_t ret;
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if (!context->keep_open)
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return KADM5_NOT_LOCKED;
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context->keep_open = 0;
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ret = context->db->hdb_unlock(context->context, context->db);
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(void) context->db->hdb_close(context->context, context->db);
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return ret;
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}
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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, prune_principal);
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SET(c, randkey_principal);
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SET(c, rename_principal);
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SET(c, lock);
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SET(c, unlock);
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SET(c, setkey_principal_3);
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SET(c, iter_principals);
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SET(c, dup_context);
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}
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#ifndef NO_UNIX_SOCKETS
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static void
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set_socket_name(krb5_context context, struct sockaddr_un *un)
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{
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const char *fn = kadm5_log_signal_socket(context);
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memset(un, 0, sizeof(*un));
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un->sun_family = AF_UNIX;
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strlcpy (un->sun_path, fn, sizeof(un->sun_path));
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}
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#else
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static void
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set_socket_info(krb5_context context, struct addrinfo **info)
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{
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kadm5_log_signal_socket_info(context, 0, info);
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}
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#endif
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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_context context = ctx->context;
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struct hdb_dbinfo *info, *d;
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krb5_error_code ret;
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int aret;
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if (ctx->config.realm) {
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/* fetch the databases */
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ret = hdb_get_dbinfo(context, &info);
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if (ret)
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return ret;
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d = NULL;
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while ((d = hdb_dbinfo_get_next(info, d)) != NULL) {
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const char *p = hdb_dbinfo_get_realm(context, d);
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/* match default (realm-less) */
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if(p != NULL && strcmp(ctx->config.realm, p) != 0)
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continue;
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p = hdb_dbinfo_get_dbname(context, d);
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if (p) {
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ctx->config.dbname = strdup(p);
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if (ctx->config.dbname == NULL) {
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hdb_free_dbinfo(context, &info);
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return krb5_enomem(context);
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}
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}
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p = hdb_dbinfo_get_acl_file(context, d);
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if (p) {
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ctx->config.acl_file = strdup(p);
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if (ctx->config.acl_file == NULL) {
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hdb_free_dbinfo(context, &info);
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return krb5_enomem(context);
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}
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}
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p = hdb_dbinfo_get_mkey_file(context, d);
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if (p) {
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ctx->config.stash_file = strdup(p);
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if (ctx->config.stash_file == NULL) {
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hdb_free_dbinfo(context, &info);
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return krb5_enomem(context);
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}
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}
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p = hdb_dbinfo_get_log_file(context, d);
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if (p) {
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ctx->log_context.log_file = strdup(p);
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if (ctx->log_context.log_file == NULL) {
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hdb_free_dbinfo(context, &info);
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return krb5_enomem(context);
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}
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}
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break;
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}
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hdb_free_dbinfo(context, &info);
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}
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/* If any of the values was unset, pick up the default value */
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if (ctx->config.dbname == NULL) {
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ctx->config.dbname = strdup(hdb_default_db(context));
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if (ctx->config.dbname == NULL)
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return krb5_enomem(context);
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}
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if (ctx->config.acl_file == NULL) {
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aret = asprintf(&ctx->config.acl_file, "%s/kadmind.acl",
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hdb_db_dir(context));
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if (aret == -1)
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return krb5_enomem(context);
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}
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if (ctx->config.stash_file == NULL) {
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aret = asprintf(&ctx->config.stash_file, "%s/m-key",
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hdb_db_dir(context));
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if (aret == -1)
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return krb5_enomem(context);
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}
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if (ctx->log_context.log_file == NULL) {
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aret = asprintf(&ctx->log_context.log_file, "%s/log",
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hdb_db_dir(context));
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if (aret == -1)
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return krb5_enomem(context);
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}
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#ifndef NO_UNIX_SOCKETS
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set_socket_name(context, &ctx->log_context.socket_name);
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#else
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set_socket_info(context, &ctx->log_context.socket_info);
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#endif
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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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kadm5_ret_t ret = 0;
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*ctx = calloc(1, sizeof(**ctx));
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if (*ctx == NULL)
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return krb5_enomem(context);
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(*ctx)->log_context.socket_fd = rk_INVALID_SOCKET;
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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 (params)
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(*ctx)->config.mask = params->mask;
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if (is_set(REALM)) {
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(*ctx)->config.realm = strdup(params->realm);
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if ((*ctx)->config.realm == NULL)
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return krb5_enomem(context);
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} else {
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ret = krb5_get_default_realm(context, &(*ctx)->config.realm);
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if (ret)
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return ret;
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}
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if (is_set(DBNAME)) {
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(*ctx)->config.dbname = strdup(params->dbname);
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if ((*ctx)->config.dbname == NULL)
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return krb5_enomem(context);
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}
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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 ((*ctx)->config.acl_file == NULL)
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return krb5_enomem(context);
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}
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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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if ((*ctx)->config.stash_file == NULL)
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return krb5_enomem(context);
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}
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ret = find_db_spec(*ctx);
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if (ret == 0)
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ret = _kadm5_s_init_hooks(*ctx);
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if (ret != 0) {
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kadm5_s_destroy(*ctx);
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*ctx = NULL;
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return ret;
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}
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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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