diff options
Diffstat (limited to 'src/responder/pac/pacsrv.c')
| -rw-r--r-- | src/responder/pac/pacsrv.c | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/src/responder/pac/pacsrv.c b/src/responder/pac/pacsrv.c new file mode 100644 index 000000000..feee3aeed --- /dev/null +++ b/src/responder/pac/pacsrv.c @@ -0,0 +1,227 @@ +/* + SSSD + + PAC Responder + + Copyright (C) Sumit Bose <sbose@redhat.com> 2011 + + 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/pac/pacsrv.h" +#include "db/sysdb.h" +#include "confdb/confdb.h" +#include "dbus/dbus.h" +#include "sbus/sssd_dbus.h" +#include "responder/common/responder_packet.h" +#include "responder/common/responder.h" +#include "providers/data_provider.h" +#include "monitor/monitor_interfaces.h" +#include "sbus/sbus_client.h" + +#define SSS_PAC_PIPE_NAME "pac" + +struct sbus_method monitor_pac_methods[] = { + { MON_CLI_METHOD_PING, monitor_common_pong }, + { MON_CLI_METHOD_RES_INIT, monitor_common_res_init }, + { MON_CLI_METHOD_ROTATE, monitor_common_rotate_logs }, + { NULL, NULL } +}; + +struct sbus_interface monitor_pac_interface = { + MONITOR_INTERFACE, + MONITOR_PATH, + SBUS_DEFAULT_VTABLE, + monitor_pac_methods, + NULL +}; + +static struct sbus_method pac_dp_methods[] = { + { NULL, NULL } +}; + +struct sbus_interface pac_dp_interface = { + DP_INTERFACE, + DP_PATH, + SBUS_DEFAULT_VTABLE, + pac_dp_methods, + NULL +}; + + +/* TODO: check if this can be made generic for all responders */ +static void pac_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_OP_FAILURE, ("Reconnected to the Data Provider.\n")); + + /* Identify ourselves to the data provider */ + ret = dp_common_send_id(be_conn->conn, + DATA_PROVIDER_VERSION, + "PAC"); + /* all fine */ + if (ret == EOK) { + handle_requests_after_reconnect(be_conn->rctx); + return; + } + } + + /* Failed to reconnect */ + DEBUG(SSSDBG_FATAL_FAILURE, ("Could not reconnect to %s provider.\n", + be_conn->domain->name)); + + /* FIXME: kill the frontend and let the monitor restart it ? */ + /* nss_shutdown(rctx); */ +} + +static void *idmap_talloc(size_t size, void *pvt) +{ + return talloc_size(pvt, size); +} + +static void idmap_free(void *ptr, void *pvt) +{ + talloc_free(ptr); +} + +int pac_process_init(TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct confdb_ctx *cdb) +{ + struct sss_cmd_table *pac_cmds; + struct be_conn *iter; + struct pac_ctx *pac_ctx; + int ret, max_retries; + enum idmap_error_code err; + + pac_ctx = talloc_zero(mem_ctx, struct pac_ctx); + if (!pac_ctx) { + DEBUG(SSSDBG_FATAL_FAILURE, ("fatal error initializing pac_ctx\n")); + return ENOMEM; + } + + pac_cmds = get_pac_cmds(); + + ret = sss_process_init(pac_ctx, ev, cdb, + pac_cmds, + SSS_PAC_SOCKET_NAME, NULL, + CONFDB_PAC_CONF_ENTRY, + PAC_SBUS_SERVICE_NAME, + PAC_SBUS_SERVICE_VERSION, + &monitor_pac_interface, + "PAC", &pac_dp_interface, + &pac_ctx->rctx); + if (ret != EOK) { + return ret; + } + pac_ctx->rctx->pvt_ctx = pac_ctx; + + /* Enable automatic reconnection to the Data Provider */ + ret = confdb_get_int(pac_ctx->rctx->cdb, + CONFDB_PAC_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 = pac_ctx->rctx->be_conns; iter; iter = iter->next) { + sbus_reconnect_init(iter->conn, max_retries, + pac_dp_reconnect_init, iter); + } + + err = sss_idmap_init(idmap_talloc, pac_ctx, idmap_free, + &pac_ctx->idmap_ctx); + if (err != IDMAP_SUCCESS) { + DEBUG(SSSDBG_FATAL_FAILURE, ("sss_idmap_init failed.\n")); + return EFAULT; + } + + DEBUG(SSSDBG_TRACE_FUNC, ("PAC 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_pac"; + + ret = server_setup("sssd[pac]", 0, CONFDB_PAC_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 = pac_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; +} |