diff options
Diffstat (limited to 'third_party/heimdal/lib/kadm5/context_s.c')
-rw-r--r-- | third_party/heimdal/lib/kadm5/context_s.c | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/kadm5/context_s.c b/third_party/heimdal/lib/kadm5/context_s.c new file mode 100644 index 0000000..0c154ec --- /dev/null +++ b/third_party/heimdal/lib/kadm5/context_s.c @@ -0,0 +1,312 @@ +/* + * 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); +} + +#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 (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); + } + + find_db_spec(*ctx); + + 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; +} |