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data_provider_be.c
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data_provider_be.c
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/*
SSSD
Data Provider Process
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 <dlfcn.h>
#include <security/pam_appl.h>
#include <security/pam_modules.h>
#include "popt.h"
#include "util/util.h"
#include "confdb/confdb.h"
#include "db/sysdb.h"
#include "dbus/dbus.h"
#include "sbus/sssd_dbus.h"
#include "providers/dp_backend.h"
#include "providers/fail_over.h"
#include "util/child_common.h"
#include "resolv/async_resolv.h"
#include "monitor/monitor_interfaces.h"
#define MSG_TARGET_NO_CONFIGURED "sssd_be: The requested target is not configured"
#define ACCESS_PERMIT "permit"
#define ACCESS_DENY "deny"
#define NO_PROVIDER "none"
static int data_provider_res_init(DBusMessage *message,
struct sbus_connection *conn);
static int data_provider_go_offline(DBusMessage *message,
struct sbus_connection *conn);
static int data_provider_reset_offline(DBusMessage *message,
struct sbus_connection *conn);
static int data_provider_logrotate(DBusMessage *message,
struct sbus_connection *conn);
struct sbus_method monitor_be_methods[] = {
{ MON_CLI_METHOD_PING, monitor_common_pong },
{ MON_CLI_METHOD_RES_INIT, data_provider_res_init },
{ MON_CLI_METHOD_OFFLINE, data_provider_go_offline },
{ MON_CLI_METHOD_RESET_OFFLINE, data_provider_reset_offline },
{ MON_CLI_METHOD_ROTATE, data_provider_logrotate },
{ NULL, NULL }
};
struct sbus_interface monitor_be_interface = {
MONITOR_INTERFACE,
MONITOR_PATH,
SBUS_DEFAULT_VTABLE,
monitor_be_methods,
NULL
};
static int client_registration(DBusMessage *message, struct sbus_connection *conn);
static int be_get_account_info(DBusMessage *message, struct sbus_connection *conn);
static int be_pam_handler(DBusMessage *message, struct sbus_connection *conn);
static int be_sudo_handler(DBusMessage *message, struct sbus_connection *conn);
static int be_autofs_handler(DBusMessage *message, struct sbus_connection *conn);
static int be_host_handler(DBusMessage *message, struct sbus_connection *conn);
struct sbus_method be_methods[] = {
{ DP_METHOD_REGISTER, client_registration },
{ DP_METHOD_GETACCTINFO, be_get_account_info },
{ DP_METHOD_PAMHANDLER, be_pam_handler },
{ DP_METHOD_SUDOHANDLER, be_sudo_handler },
{ DP_METHOD_AUTOFSHANDLER, be_autofs_handler },
{ DP_METHOD_HOSTHANDLER, be_host_handler },
{ NULL, NULL }
};
struct sbus_interface be_interface = {
DP_INTERFACE,
DP_PATH,
SBUS_DEFAULT_VTABLE,
be_methods,
NULL
};
static struct bet_data bet_data[] = {
{BET_NULL, NULL, NULL},
{BET_ID, CONFDB_DOMAIN_ID_PROVIDER, "sssm_%s_id_init"},
{BET_AUTH, CONFDB_DOMAIN_AUTH_PROVIDER, "sssm_%s_auth_init"},
{BET_ACCESS, CONFDB_DOMAIN_ACCESS_PROVIDER, "sssm_%s_access_init"},
{BET_CHPASS, CONFDB_DOMAIN_CHPASS_PROVIDER, "sssm_%s_chpass_init"},
{BET_SUDO, CONFDB_DOMAIN_SUDO_PROVIDER, "sssm_%s_sudo_init"},
{BET_AUTOFS, CONFDB_DOMAIN_SUDO_PROVIDER, "sssm_%s_autofs_init"},
{BET_SESSION, CONFDB_DOMAIN_SESSION_PROVIDER, "sssm_%s_session_init"},
{BET_HOSTID, CONFDB_DOMAIN_HOSTID_PROVIDER, "sssm_%s_hostid_init"},
{BET_MAX, NULL, NULL}
};
struct be_async_req {
be_req_fn_t fn;
struct be_req *req;
};
static void be_async_req_handler(struct tevent_context *ev,
struct tevent_timer *te,
struct timeval tv, void *pvt)
{
struct be_async_req *async_req;
async_req = talloc_get_type(pvt, struct be_async_req);
async_req->fn(async_req->req);
}
static int be_file_request(struct be_ctx *ctx,
be_req_fn_t fn,
struct be_req *req)
{
struct be_async_req *areq;
struct tevent_timer *te;
struct timeval tv;
if (!fn || !req) return EINVAL;
areq = talloc(req, struct be_async_req);
if (!areq) {
return ENOMEM;
}
areq->fn = fn;
areq->req = req;
/* fire immediately */
tv.tv_sec = 0;
tv.tv_usec = 0;
te = tevent_add_timer(ctx->ev, req, tv, be_async_req_handler, areq);
if (te == NULL) {
return EIO;
}
return EOK;
}
bool be_is_offline(struct be_ctx *ctx)
{
time_t now = time(NULL);
/* check if we are past the offline blackout timeout */
/* FIXME: get offline_timeout from configuration */
if (ctx->offstat.went_offline + 60 < now) {
ctx->offstat.offline = false;
}
return ctx->offstat.offline;
}
void be_mark_offline(struct be_ctx *ctx)
{
DEBUG(8, ("Going offline!\n"));
ctx->offstat.went_offline = time(NULL);
ctx->offstat.offline = true;
ctx->run_online_cb = true;
be_run_offline_cb(ctx);
}
static void be_reset_offline(struct be_ctx *ctx)
{
ctx->offstat.went_offline = 0;
ctx->offstat.offline = false;
be_run_online_cb(ctx);
}
static char *dp_pam_err_to_string(TALLOC_CTX *memctx, int dp_err_type, int errnum)
{
switch (dp_err_type) {
case DP_ERR_OK:
return talloc_strdup(memctx, "Success");
break;
case DP_ERR_OFFLINE:
return talloc_asprintf(memctx,
"Provider is Offline (%s)",
pam_strerror(NULL, errnum));
break;
case DP_ERR_TIMEOUT:
return talloc_asprintf(memctx,
"Request timed out (%s)",
pam_strerror(NULL, errnum));
break;
case DP_ERR_FATAL:
default:
return talloc_asprintf(memctx,
"Internal Error (%s)",
pam_strerror(NULL, errnum));
break;
}
return NULL;
}
static void acctinfo_callback(struct be_req *req,
int dp_err_type,
int errnum,
const char *errstr)
{
DBusMessage *reply;
DBusConnection *dbus_conn;
dbus_bool_t dbret;
dbus_uint16_t err_maj = 0;
dbus_uint32_t err_min = 0;
const char *err_msg = NULL;
reply = (DBusMessage *)req->pvt;
if (reply) {
/* Return a reply if one was requested
* There may not be one if this request began
* while we were offline
*/
err_maj = dp_err_type;
err_min = errnum;
if (errstr) {
err_msg = errstr;
} else {
err_msg = dp_pam_err_to_string(req, dp_err_type, errnum);
}
if (!err_msg) {
DEBUG(1, ("Failed to set err_msg, Out of memory?\n"));
err_msg = "OOM";
}
dbret = dbus_message_append_args(reply,
DBUS_TYPE_UINT16, &err_maj,
DBUS_TYPE_UINT32, &err_min,
DBUS_TYPE_STRING, &err_msg,
DBUS_TYPE_INVALID);
if (!dbret) {
DEBUG(1, ("Failed to generate dbus reply\n"));
return;
}
dbus_conn = sbus_get_connection(req->becli->conn);
dbus_connection_send(dbus_conn, reply, NULL);
dbus_message_unref(reply);
DEBUG(4, ("Request processed. Returned %d,%d,%s\n",
err_maj, err_min, err_msg));
}
/* finally free the request */
talloc_free(req);
}
static errno_t
split_service_name_filter(TALLOC_CTX *mem_ctx,
const char *filter,
char **name,
char **protocol)
{
char *p;
*name = talloc_strdup(mem_ctx, filter);
if (!*name) {
return ENOENT;
}
p = strchr(*name, ':');
if (p) {
/* Protocol included */
*p = '\0';
*protocol = p + 1;
} else {
*protocol = NULL;
}
return EOK;
}
static int be_get_account_info(DBusMessage *message, struct sbus_connection *conn)
{
struct be_acct_req *req;
struct be_req *be_req;
struct be_client *becli;
DBusMessage *reply;
DBusError dbus_error;
dbus_bool_t dbret;
void *user_data;
uint32_t type;
char *filter;
uint32_t attr_type;
int ret;
dbus_uint16_t err_maj;
dbus_uint32_t err_min;
const char *err_msg;
be_req = NULL;
user_data = sbus_conn_get_private_data(conn);
if (!user_data) return EINVAL;
becli = talloc_get_type(user_data, struct be_client);
if (!becli) return EINVAL;
dbus_error_init(&dbus_error);
ret = dbus_message_get_args(message, &dbus_error,
DBUS_TYPE_UINT32, &type,
DBUS_TYPE_UINT32, &attr_type,
DBUS_TYPE_STRING, &filter,
DBUS_TYPE_INVALID);
if (!ret) {
DEBUG(1,("Failed, to parse message!\n"));
if (dbus_error_is_set(&dbus_error)) dbus_error_free(&dbus_error);
return EIO;
}
DEBUG(4, ("Got request for [%u][%d][%s]\n", type, attr_type, filter));
reply = dbus_message_new_method_return(message);
if (!reply) return ENOMEM;
/* If we are offline and fast reply was requested
* return offline immediately
*/
if ((type & BE_REQ_FAST) && becli->bectx->offstat.offline) {
/* Send back an immediate reply */
err_maj = DP_ERR_OFFLINE;
err_min = EAGAIN;
err_msg = "Fast reply - offline";
dbret = dbus_message_append_args(reply,
DBUS_TYPE_UINT16, &err_maj,
DBUS_TYPE_UINT32, &err_min,
DBUS_TYPE_STRING, &err_msg,
DBUS_TYPE_INVALID);
if (!dbret) return EIO;
DEBUG(4, ("Request processed. Returned %d,%d,%s\n",
err_maj, err_min, err_msg));
sbus_conn_send_reply(conn, reply);
dbus_message_unref(reply);
reply = NULL;
/* This reply will be queued and sent
* when we reenter the mainloop.
*
* Continue processing in case we are
* going back online.
*/
}
be_req = talloc_zero(becli, struct be_req);
if (!be_req) {
err_maj = DP_ERR_FATAL;
err_min = ENOMEM;
err_msg = "Out of memory";
goto done;
}
be_req->becli = becli;
be_req->be_ctx = becli->bectx;
be_req->fn = acctinfo_callback;
be_req->pvt = reply;
req = talloc(be_req, struct be_acct_req);
if (!req) {
err_maj = DP_ERR_FATAL;
err_min = ENOMEM;
err_msg = "Out of memory";
goto done;
}
req->entry_type = type;
req->attr_type = (int)attr_type;
be_req->req_data = req;
if ((attr_type != BE_ATTR_CORE) &&
(attr_type != BE_ATTR_MEM) &&
(attr_type != BE_ATTR_ALL)) {
/* Unrecognized attr type */
err_maj = DP_ERR_FATAL;
err_min = EINVAL;
err_msg = "Invalid Attrs Parameter";
goto done;
}
if (filter) {
ret = EOK;
if (strncmp(filter, "name=", 5) == 0) {
req->filter_type = BE_FILTER_NAME;
ret = split_service_name_filter(req, &filter[5],
&req->filter_value,
&req->extra_value);
} else if (strncmp(filter, "idnumber=", 9) == 0) {
req->filter_type = BE_FILTER_IDNUM;
ret = split_service_name_filter(req, &filter[9],
&req->filter_value,
&req->extra_value);
} else if (strcmp(filter, ENUM_INDICATOR) == 0) {
req->filter_type = BE_FILTER_ENUM;
req->filter_value = NULL;
} else {
err_maj = DP_ERR_FATAL;
err_min = EINVAL;
err_msg = "Invalid Filter";
goto done;
}
if (ret != EOK) {
err_maj = DP_ERR_FATAL;
err_min = EINVAL;
err_msg = "Invalid Filter";
goto done;
}
} else {
err_maj = DP_ERR_FATAL;
err_min = EINVAL;
err_msg = "Missing Filter Parameter";
goto done;
}
/* process request */
ret = be_file_request(becli->bectx,
becli->bectx->bet_info[BET_ID].bet_ops->handler,
be_req);
if (ret != EOK) {
err_maj = DP_ERR_FATAL;
err_min = ret;
err_msg = "Failed to file request";
goto done;
}
return EOK;
done:
if (be_req) {
talloc_free(be_req);
}
if (reply) {
dbret = dbus_message_append_args(reply,
DBUS_TYPE_UINT16, &err_maj,
DBUS_TYPE_UINT32, &err_min,
DBUS_TYPE_STRING, &err_msg,
DBUS_TYPE_INVALID);
if (!dbret) return EIO;
DEBUG(4, ("Request processed. Returned %d,%d,%s\n",
err_maj, err_min, err_msg));
/* send reply back */
sbus_conn_send_reply(conn, reply);
dbus_message_unref(reply);
}
return EOK;
}
static void be_pam_handler_callback(struct be_req *req,
int dp_err_type,
int errnum,
const char *errstr)
{
struct pam_data *pd;
DBusMessage *reply;
DBusConnection *dbus_conn;
dbus_bool_t dbret;
DEBUG(4, ("Backend returned: (%d, %d, %s) [%s]\n",
dp_err_type, errnum, errstr?errstr:"<NULL>",
dp_pam_err_to_string(req, dp_err_type, errnum)));
pd = talloc_get_type(req->req_data, struct pam_data);
DEBUG(4, ("Sending result [%d][%s]\n", pd->pam_status, pd->domain));
reply = (DBusMessage *)req->pvt;
dbret = dp_pack_pam_response(reply, pd);
if (!dbret) {
DEBUG(1, ("Failed to generate dbus reply\n"));
dbus_message_unref(reply);
return;
}
dbus_conn = sbus_get_connection(req->becli->conn);
dbus_connection_send(dbus_conn, reply, NULL);
dbus_message_unref(reply);
DEBUG(4, ("Sent result [%d][%s]\n", pd->pam_status, pd->domain));
talloc_free(req);
}
static int be_pam_handler(DBusMessage *message, struct sbus_connection *conn)
{
DBusError dbus_error;
DBusMessage *reply;
struct be_client *becli;
dbus_bool_t ret;
void *user_data;
struct pam_data *pd = NULL;
struct be_req *be_req = NULL;
enum bet_type target = BET_NULL;
user_data = sbus_conn_get_private_data(conn);
if (!user_data) return EINVAL;
becli = talloc_get_type(user_data, struct be_client);
if (!becli) return EINVAL;
reply = dbus_message_new_method_return(message);
if (!reply) {
DEBUG(1, ("dbus_message_new_method_return failed, cannot send reply.\n"));
return ENOMEM;
}
be_req = talloc_zero(becli, struct be_req);
if (!be_req) {
DEBUG(7, ("talloc_zero failed.\n"));
dbus_message_unref(reply);
return ENOMEM;
}
be_req->becli = becli;
be_req->be_ctx = becli->bectx;
be_req->fn = be_pam_handler_callback;
be_req->pvt = reply;
dbus_error_init(&dbus_error);
ret = dp_unpack_pam_request(message, be_req, &pd, &dbus_error);
if (!ret) {
DEBUG(1,("Failed, to parse message!\n"));
talloc_free(be_req);
return EIO;
}
pd->pam_status = PAM_SYSTEM_ERR;
pd->domain = talloc_strdup(pd, becli->bectx->domain->name);
if (pd->domain == NULL) {
talloc_free(be_req);
return ENOMEM;
}
DEBUG(4, ("Got request with the following data\n"));
DEBUG_PAM_DATA(4, pd);
switch (pd->cmd) {
case SSS_PAM_AUTHENTICATE:
target = BET_AUTH;
break;
case SSS_PAM_ACCT_MGMT:
target = BET_ACCESS;
break;
case SSS_PAM_CHAUTHTOK:
case SSS_PAM_CHAUTHTOK_PRELIM:
target = BET_CHPASS;
break;
case SSS_PAM_OPEN_SESSION:
target = BET_SESSION;
break;
case SSS_PAM_SETCRED:
case SSS_PAM_CLOSE_SESSION:
pd->pam_status = PAM_SUCCESS;
goto done;
break;
default:
DEBUG(7, ("Unsupported PAM command [%d].\n", pd->cmd));
pd->pam_status = PAM_MODULE_UNKNOWN;
goto done;
}
/* return PAM_MODULE_UNKNOWN if corresponding backend target is not
* configured
*/
if (!becli->bectx->bet_info[target].bet_ops) {
DEBUG(7, ("Undefined backend target.\n"));
pd->pam_status = PAM_MODULE_UNKNOWN;
goto done;
}
be_req->req_data = pd;
ret = be_file_request(becli->bectx,
becli->bectx->bet_info[target].bet_ops->handler,
be_req);
if (ret != EOK) {
DEBUG(7, ("be_file_request failed.\n"));
goto done;
}
return EOK;
done:
DEBUG(4, ("Sending result [%d][%s]\n",
pd->pam_status, pd->domain));
ret = dp_pack_pam_response(reply, pd);
if (!ret) {
DEBUG(1, ("Failed to generate dbus reply\n"));
talloc_free(be_req);
dbus_message_unref(reply);
return EIO;
}
/* send reply back immediately */
sbus_conn_send_reply(conn, reply);
dbus_message_unref(reply);
talloc_free(be_req);
return EOK;
}
static void be_sudo_handler_reply(struct sbus_connection *conn,
DBusMessage *reply,
dbus_uint16_t dp_err,
dbus_uint32_t dp_ret,
const char *errstr)
{
DBusConnection *dbus_conn = NULL;
dbus_bool_t dbret;
const char *err_msg = NULL;
if (reply == NULL) {
return;
}
err_msg = errstr ? errstr : "No errmsg set\n";
dbret = dbus_message_append_args(reply,
DBUS_TYPE_UINT16, &dp_err,
DBUS_TYPE_UINT32, &dp_ret,
DBUS_TYPE_STRING, &err_msg,
DBUS_TYPE_INVALID);
if (!dbret) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to generate dbus reply\n"));
return;
}
DEBUG(SSSDBG_FUNC_DATA, ("SUDO Backend returned: (%d, %d, %s)\n",
dp_err, dp_ret, errstr ? errstr : "<NULL>"));
dbus_conn = sbus_get_connection(conn);
dbus_connection_send(dbus_conn, reply, NULL);
dbus_message_unref(reply);
}
static void be_sudo_handler_callback(struct be_req *req,
int dp_err,
int dp_ret,
const char *errstr)
{
DBusMessage *reply = NULL;
reply = (DBusMessage*)(req->pvt);
be_sudo_handler_reply(req->becli->conn, reply, dp_err, dp_ret, errstr);
talloc_free(req);
}
static int be_sudo_handler(DBusMessage *message, struct sbus_connection *conn)
{
DBusError dbus_error;
DBusMessage *reply = NULL;
struct be_client *be_cli = NULL;
struct be_req *be_req = NULL;
struct be_sudo_req *sudo_req = NULL;
void *user_data = NULL;
int ret = 0;
uint32_t type;
char *filter;
const char *err_msg = NULL;
DEBUG(SSSDBG_TRACE_FUNC, ("Entering be_sudo_handler()\n"));
user_data = sbus_conn_get_private_data(conn);
if (user_data == NULL) {
return EINVAL;
}
be_cli = talloc_get_type(user_data, struct be_client);
if (be_cli == NULL) {
return EINVAL;
}
reply = dbus_message_new_method_return(message);
if (!reply) {
DEBUG(SSSDBG_CRIT_FAILURE,
("dbus_message_new_method_return failed, cannot send reply.\n"));
return ENOMEM;
}
/* create be request */
be_req = talloc_zero(be_cli, struct be_req);
if (be_req == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_zero failed.\n"));
dbus_message_unref(reply);
return ENOMEM;
}
be_req->becli = be_cli;
be_req->be_ctx = be_cli->bectx;
be_req->pvt = reply;
be_req->fn = be_sudo_handler_callback;
/* get arguments */
dbus_error_init(&dbus_error);
ret = dbus_message_get_args(message, &dbus_error,
DBUS_TYPE_UINT32, &type,
DBUS_TYPE_STRING, &filter,
DBUS_TYPE_INVALID);
if (!ret) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Failed, to parse message!\n"));
if (dbus_error_is_set(&dbus_error)) dbus_error_free(&dbus_error);
ret = EIO;
err_msg = "dbus_message_get_args failed";
goto fail;
}
/* If we are offline and fast reply was requested
* return offline immediately
*/
if ((type & BE_REQ_FAST) && be_cli->bectx->offstat.offline) {
be_sudo_handler_reply(conn, reply, DP_ERR_OFFLINE, EAGAIN,
"Fast reply - offline");
reply = NULL;
/* This reply will be queued and sent
* when we reenter the mainloop.
*
* Continue processing in case we are
* going back online.
*/
}
/* get and set sudo request data */
sudo_req = talloc_zero(be_req, struct be_sudo_req);
if (sudo_req == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_zero failed.\n"));
goto fail;
}
sudo_req->type = (~BE_REQ_FAST) & type;
sudo_req->uid = 0;
sudo_req->groups = NULL;
switch (sudo_req->type) {
case BE_REQ_SUDO_ALL:
case BE_REQ_SUDO_DEFAULTS:
sudo_req->username = NULL;
break;
case BE_REQ_SUDO_USER:
if (filter) {
if (strncmp(filter, "name=", 5) == 0) {
sudo_req->username = talloc_strdup(sudo_req, &filter[5]);
if (sudo_req->username == NULL) {
ret = ENOMEM;
goto fail;
}
} else {
ret = EINVAL;
err_msg = "Invalid Filter";
goto fail;
}
} else {
ret = EINVAL;
err_msg = "Missing Filter Parameter";
goto fail;
}
break;
default:
DEBUG(SSSDBG_CRIT_FAILURE, ("Invalid request type %d\n", sudo_req->type));
ret = EINVAL;
err_msg = "Invalid DP request type";
goto fail;
}
be_req->req_data = sudo_req;
/* return an error if corresponding backend target is not configured */
if (!be_cli->bectx->bet_info[BET_SUDO].bet_ops) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Undefined backend target.\n"));
ret = ENODEV;
goto fail;
}
ret = be_file_request(be_cli->bectx,
be_cli->bectx->bet_info[BET_SUDO].bet_ops->handler,
be_req);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, ("be_file_request failed.\n"));
err_msg = "Cannot file back end request";
goto fail;
}
return EOK;
fail:
/* send reply back immediately */
be_sudo_handler_callback(be_req, DP_ERR_FATAL, ret,
err_msg ? err_msg : strerror(ret));
return EOK;
}
static void be_autofs_handler_callback(struct be_req *req,
int dp_err_type,
int errnum,
const char *errstr);
static int be_autofs_handler(DBusMessage *message, struct sbus_connection *conn)
{
DBusError dbus_error;
DBusMessage *reply = NULL;
dbus_bool_t dbret;
struct be_client *be_cli = NULL;
struct be_req *be_req = NULL;
struct be_autofs_req *be_autofs_req = NULL;
void *user_data = NULL;
int ret = 0;
uint32_t type;
char *filter;
char *filter_val;
dbus_uint16_t err_maj;
dbus_uint32_t err_min;
const char *err_msg;
DEBUG(SSSDBG_TRACE_FUNC, ("Entering be_autofs_handler()\n"));
user_data = sbus_conn_get_private_data(conn);
if (user_data == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Cannot get SBUS private data\n"));
return EINVAL;
}
be_cli = talloc_get_type(user_data, struct be_client);
if (be_cli == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Cannot get back end client context\n"));
return EINVAL;
}
dbus_error_init(&dbus_error);
ret = dbus_message_get_args(message, &dbus_error,
DBUS_TYPE_UINT32, &type,
DBUS_TYPE_STRING, &filter,
DBUS_TYPE_INVALID);
if (!ret) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Failed, to parse message!\n"));
if (dbus_error_is_set(&dbus_error)) dbus_error_free(&dbus_error);
return EIO;
}
reply = dbus_message_new_method_return(message);
if (!reply) {
DEBUG(SSSDBG_CRIT_FAILURE,
("dbus_message_new_method_return failed, cannot send reply.\n"));
return ENOMEM;
}
/* If we are offline and fast reply was requested
* return offline immediately
*/
if ((type & BE_REQ_FAST) && be_cli->bectx->offstat.offline) {
/* Send back an immediate reply */
err_maj = DP_ERR_OFFLINE;
err_min = EAGAIN;
err_msg = "Fast reply - offline";
dbret = dbus_message_append_args(reply,
DBUS_TYPE_UINT16, &err_maj,
DBUS_TYPE_UINT32, &err_min,
DBUS_TYPE_STRING, &err_msg,
DBUS_TYPE_INVALID);
if (!dbret) return EIO;
DEBUG(SSSDBG_TRACE_LIBS, ("Request processed. Returned %d,%d,%s\n",
err_maj, err_min, err_msg));
sbus_conn_send_reply(conn, reply);
dbus_message_unref(reply);
reply = NULL;
/* This reply will be queued and sent
* when we reenter the mainloop.
*
* Continue processing in case we are
* going back online.
*/
}
if (filter) {
if (strncmp(filter, "mapname=", 8) == 0) {
filter_val = &filter[8];
} else {
err_maj = DP_ERR_FATAL;
err_min = EINVAL;
err_msg = "Invalid Filter";
goto done;
}
} else {
err_maj = DP_ERR_FATAL;
err_min = EINVAL;
err_msg = "Missing Filter Parameter";
goto done;
}
/* create be request */
be_req = talloc_zero(be_cli, struct be_req);
if (be_req == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_zero failed.\n"));
err_maj = DP_ERR_FATAL;
err_min = ENOMEM;
err_msg = "Out of memory";
goto done;
}
be_req->becli = be_cli;
be_req->be_ctx = be_cli->bectx;
be_req->pvt = reply;
be_req->fn = be_autofs_handler_callback;
/* set autofs request data */
be_autofs_req = talloc_zero(be_req, struct be_autofs_req);
if (be_autofs_req == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_zero failed.\n"));
err_maj = DP_ERR_FATAL;
err_min = ENOMEM;
err_msg = "Out of memory";
goto done;
}
be_autofs_req->mapname = talloc_strdup(be_autofs_req, filter_val);
if (be_autofs_req->mapname == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_strdup failed.\n"));
err_maj = DP_ERR_FATAL;
err_min = ENOMEM;
err_msg = "Out of memory";
goto done;
}
be_req->req_data = be_autofs_req;
if (!be_cli->bectx->bet_info[BET_AUTOFS].bet_ops) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Undefined backend target.\n"));
err_maj = DP_ERR_FATAL;
err_min = ENODEV;
err_msg = "Autofs back end target is not configured";
goto done;
}
ret = be_file_request(be_cli->bectx,
be_cli->bectx->bet_info[BET_AUTOFS].bet_ops->handler,
be_req);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, ("be_file_request failed.\n"));
err_maj = DP_ERR_FATAL;
err_min = ENODEV;
err_msg = "Cannot file back end request";
goto done;
}
return EOK;
done:
if (be_req) {
talloc_free(be_req);
}
if (reply) {
dbret = dbus_message_append_args(reply,
DBUS_TYPE_UINT16, &err_maj,
DBUS_TYPE_UINT32, &err_min,
DBUS_TYPE_STRING, &err_msg,
DBUS_TYPE_INVALID);