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/*
SSSD
NSS Responder
Copyright (C) Simo Sorce <ssorce@redhat.com> 2008
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 <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <string.h>
#include <sys/time.h>
#include <errno.h>
#include "popt.h"
#include "util/util.h"
#include "responder/nss/nsssrv.h"
#include "responder/nss/nsssrv_nc.h"
#include "db/sysdb.h"
#include "confdb/confdb.h"
#include "dbus/dbus.h"
#include "sbus/sssd_dbus.h"
#include "util/btreemap.h"
#include "responder/common/responder_packet.h"
#include "providers/data_provider.h"
#include "monitor/monitor_sbus.h"
#include "monitor/monitor_interfaces.h"
#include "sbus/sbus_client.h"
#define SSS_NSS_PIPE_NAME "nss"
static int service_identity(DBusMessage *message, struct sbus_conn_ctx *sconn);
static int service_pong(DBusMessage *message, struct sbus_conn_ctx *sconn);
static int service_reload(DBusMessage *message, struct sbus_conn_ctx *sconn);
struct sbus_method nss_sbus_methods[] = {
{SERVICE_METHOD_IDENTITY, service_identity},
{SERVICE_METHOD_PING, service_pong},
{SERVICE_METHOD_RELOAD, service_reload},
{NULL, NULL}
};
static int service_identity(DBusMessage *message, struct sbus_conn_ctx *sconn)
{
dbus_uint16_t version = NSS_SBUS_SERVICE_VERSION;
const char *name = NSS_SBUS_SERVICE_NAME;
DBusMessage *reply;
dbus_bool_t ret;
DEBUG(4,("Sending ID reply: (%s,%d)\n",
name, version));
reply = dbus_message_new_method_return(message);
if (!reply) return ENOMEM;
ret = dbus_message_append_args(reply,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_UINT16, &version,
DBUS_TYPE_INVALID);
if (!ret) {
dbus_message_unref(reply);
return EIO;
}
/* send reply back */
sbus_conn_send_reply(sconn, reply);
dbus_message_unref(reply);
return EOK;
}
static int service_pong(DBusMessage *message, struct sbus_conn_ctx *sconn)
{
DBusMessage *reply;
dbus_bool_t ret;
reply = dbus_message_new_method_return(message);
if (!reply) return ENOMEM;
ret = dbus_message_append_args(reply, DBUS_TYPE_INVALID);
if (!ret) {
dbus_message_unref(reply);
return EIO;
}
/* send reply back */
sbus_conn_send_reply(sconn, reply);
dbus_message_unref(reply);
return EOK;
}
static int service_reload(DBusMessage *message, struct sbus_conn_ctx *sconn)
{
/* Monitor calls this function when we need to reload
* our configuration information. Perform whatever steps
* are needed to update the configuration objects.
*/
/* Send an empty reply to acknowledge receipt */
return service_pong(message, sconn);
}
static int nss_get_config(struct nss_ctx *nctx, struct confdb_ctx *cdb)
{
int ret;
ret = confdb_get_int(cdb, nctx, NSS_SRV_CONFIG,
"EnumCacheTimeout", 120,
&nctx->enum_cache_timeout);
if (ret != EOK) goto done;
ret = confdb_get_int(cdb, nctx, NSS_SRV_CONFIG,
"EntryCacheTimeout", 600,
&nctx->enum_cache_timeout);
if (ret != EOK) goto done;
ret = confdb_get_int(cdb, nctx, NSS_SRV_CONFIG,
"EntryNegativeTimeout", 15,
&nctx->enum_cache_timeout);
if (ret != EOK) goto done;
done:
return ret;
}
int nss_process_init(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct confdb_ctx *cdb)
{
struct sbus_method *nss_dp_methods;
struct sss_cmd_table *nss_cmds;
struct nss_ctx *nctx;
int ret;
nctx = talloc_zero(mem_ctx, struct nss_ctx);
if (!nctx) {
DEBUG(0, ("fatal error initializing nss_ctx\n"));
return ENOMEM;
}
ret = nss_get_config(nctx, cdb);
if (ret != EOK) {
DEBUG(0, ("fatal error getting nss config\n"));
return ret;
}
ret = nss_ncache_init(nctx, &nctx->ncache);
if (ret != EOK) {
DEBUG(0, ("fatal error initializing negative cache\n"));
return ret;
}
nss_dp_methods = get_nss_dp_methods();
nss_cmds = get_nss_cmds();
ret = sss_process_init(nctx, ev, cdb,
nss_sbus_methods,
nss_cmds,
SSS_NSS_SOCKET_NAME, NULL,
NSS_SRV_CONFIG,
nss_dp_methods,
&nctx->rctx);
if (ret != EOK) {
return ret;
}
nctx->rctx->pvt_ctx = nctx;
DEBUG(1, ("NSS 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
{ NULL }
};
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);
/* set up things like debug , signals, daemonization, etc... */
ret = server_setup("sssd[nss]", 0, NSS_SRV_CONFIG, &main_ctx);
if (ret != EOK) return 2;
ret = nss_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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