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/*
Authors:
Jakub Hrozek <jhrozek@redhat.com>
Copyright (C) 2012 Red Hat
Autofs responder: the responder server
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <popt.h>
#include "util/util.h"
#include "confdb/confdb.h"
#include "monitor/monitor_interfaces.h"
#include "responder/common/responder.h"
#include "providers/data_provider.h"
#include "responder/autofs/autofs_private.h"
struct sbus_method monitor_autofs_methods[] = {
{ MON_CLI_METHOD_PING, monitor_common_pong },
{ MON_CLI_METHOD_RES_INIT, monitor_common_res_init },
{ MON_CLI_METHOD_ROTATE, responder_logrotate },
{ NULL, NULL }
};
struct sbus_interface monitor_autofs_interface = {
MONITOR_INTERFACE,
MONITOR_PATH,
SBUS_DEFAULT_VTABLE,
monitor_autofs_methods,
NULL
};
static struct sbus_method autofs_dp_methods[] = {
{ NULL, NULL }
};
struct sbus_interface autofs_dp_interface = {
DP_INTERFACE,
DP_PATH,
SBUS_DEFAULT_VTABLE,
autofs_dp_methods,
NULL
};
static errno_t
autofs_get_config(struct autofs_ctx *actx,
struct confdb_ctx *cdb)
{
errno_t ret;
ret = confdb_get_int(cdb, actx, CONFDB_AUTOFS_CONF_ENTRY,
CONFDB_AUTOFS_MAP_NEG_TIMEOUT, 15,
&actx->neg_timeout);
if (ret != EOK) {
DEBUG(SSSDBG_OP_FAILURE, ("Cannot read %s from configuration [%d]: %s\n",
CONFDB_AUTOFS_MAP_NEG_TIMEOUT, ret, strerror(ret)));
return ret;
}
return EOK;
}
static void
autofs_dp_reconnect_init(struct sbus_connection *conn,
int status, void *pvt)
{
struct be_conn *be_conn = talloc_get_type(pvt, struct be_conn);
int ret;
/* Did we reconnect successfully? */
if (status == SBUS_RECONNECT_SUCCESS) {
DEBUG(SSSDBG_TRACE_FUNC, ("Reconnected to the Data Provider.\n"));
/* Identify ourselves to the data provider */
ret = dp_common_send_id(be_conn->conn,
DATA_PROVIDER_VERSION,
"autofs");
/* all fine */
if (ret == EOK) {
handle_requests_after_reconnect();
return;
}
}
/* Failed to reconnect */
DEBUG(SSSDBG_FATAL_FAILURE, ("Could not reconnect to %s provider.\n",
be_conn->domain->name));
}
static int
autofs_process_init(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct confdb_ctx *cdb)
{
struct sss_cmd_table *autofs_cmds;
struct autofs_ctx *autofs_ctx;
struct be_conn *iter;
int ret;
int hret;
int max_retries;
autofs_ctx = talloc_zero(mem_ctx, struct autofs_ctx);
if (!autofs_ctx) {
DEBUG(SSSDBG_FATAL_FAILURE, ("fatal error initializing autofs_ctx\n"));
return ENOMEM;
}
ret = autofs_get_config(autofs_ctx, cdb);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE, ("Cannot read autofs configuration\n"));
return ret;
}
autofs_cmds = get_autofs_cmds();
ret = sss_process_init(autofs_ctx, ev, cdb,
autofs_cmds,
SSS_AUTOFS_SOCKET_NAME, NULL,
CONFDB_AUTOFS_CONF_ENTRY,
SSS_AUTOFS_SBUS_SERVICE_NAME,
SSS_AUTOFS_SBUS_SERVICE_VERSION,
&monitor_autofs_interface,
"autofs",
&autofs_dp_interface,
&autofs_ctx->rctx);
if (ret != EOK) {
return ret;
}
autofs_ctx->rctx->pvt_ctx = autofs_ctx;
/* Enable automatic reconnection to the Data Provider */
ret = confdb_get_int(autofs_ctx->rctx->cdb, autofs_ctx->rctx,
CONFDB_AUTOFS_CONF_ENTRY,
CONFDB_SERVICE_RECON_RETRIES,
3, &max_retries);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE,
("Failed to set up automatic reconnection\n"));
return ret;
}
for (iter = autofs_ctx->rctx->be_conns; iter; iter = iter->next) {
sbus_reconnect_init(iter->conn, max_retries,
autofs_dp_reconnect_init, iter);
}
/* Create the lookup table for setautomntent results */
hret = sss_hash_create(autofs_ctx, 10, &autofs_ctx->maps);
if (hret != HASH_SUCCESS) {
DEBUG(SSSDBG_CRIT_FAILURE,
("Unable to initialize automount maps hash table\n"));
return EIO;
}
DEBUG(SSSDBG_TRACE_FUNC, ("autofs Initialization complete\n"));
return EOK;
}
int main(int argc, const char *argv[])
{
int opt;
poptContext pc;
struct main_context *main_ctx;
int ret;
struct poptOption long_options[] = {
POPT_AUTOHELP
SSSD_MAIN_OPTS
POPT_TABLEEND
};
/* Set debug level to invalid value so we can decide if -d 0 was used. */
debug_level = SSSDBG_INVALID;
pc = poptGetContext(argv[0], argc, argv, long_options, 0);
while((opt = poptGetNextOpt(pc)) != -1) {
switch(opt) {
default:
fprintf(stderr, "\nInvalid option %s: %s\n\n",
poptBadOption(pc, 0), poptStrerror(opt));
poptPrintUsage(pc, stderr, 0);
return 1;
}
}
poptFreeContext(pc);
CONVERT_AND_SET_DEBUG_LEVEL(debug_level);
/* set up things like debug, signals, daemonization, etc... */
debug_log_file = "sssd_autofs";
ret = server_setup("sssd[autofs]", 0, CONFDB_AUTOFS_CONF_ENTRY, &main_ctx);
if (ret != EOK) {
return 2;
}
ret = die_if_parent_died();
if (ret != EOK) {
/* This is not fatal, don't return */
DEBUG(SSSDBG_OP_FAILURE, ("Could not set up to exit "
"when parent process does\n"));
}
ret = autofs_process_init(main_ctx,
main_ctx->event_ctx,
main_ctx->confdb_ctx);
if (ret != EOK) {
return 3;
}
/* loop on main */
server_loop(main_ctx);
return 0;
}
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