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-rw-r--r--server/providers/data_provider.c414
-rw-r--r--server/providers/data_provider.h73
-rw-r--r--server/providers/providers.h22
3 files changed, 509 insertions, 0 deletions
diff --git a/server/providers/data_provider.c b/server/providers/data_provider.c
new file mode 100644
index 00000000..43c80128
--- /dev/null
+++ b/server/providers/data_provider.c
@@ -0,0 +1,414 @@
+/*
+ SSSD
+
+ Data Provider
+
+ 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 "ldb.h"
+#include "ldb_errors.h"
+#include "util/util.h"
+#include "service.h"
+#include "confdb/confdb.h"
+#include "dbus/dbus.h"
+#include "sbus/sssd_dbus.h"
+#include "sbus_interfaces.h"
+#include "util/btreemap.h"
+#include "data_provider.h"
+
+static int provide_identity(DBusMessage *message, void *data, DBusMessage **r);
+static int reply_ping(DBusMessage *message, void *data, DBusMessage **r);
+
+struct sbus_method mon_sbus_methods[] = {
+ {SERVICE_METHOD_IDENTITY, provide_identity},
+ {SERVICE_METHOD_PING, reply_ping},
+ {NULL, NULL}
+};
+
+static int provide_identity(DBusMessage *message, void *data, DBusMessage **r)
+{
+ dbus_uint16_t version = DATA_PROVIDER_VERSION;
+ const char *name = DATA_PROVIDER_SERVICE_NAME;
+ DBusMessage *reply;
+ dbus_bool_t ret;
+
+ reply = dbus_message_new_method_return(message);
+ ret = dbus_message_append_args(reply,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_UINT16, &version,
+ DBUS_TYPE_INVALID);
+ if (!ret) {
+ return EIO;
+ }
+
+ *r = reply;
+ return EOK;
+}
+
+static int reply_ping(DBusMessage *message, void *data, DBusMessage **r)
+{
+ DBusMessage *reply;
+ dbus_bool_t ret;
+
+ reply = dbus_message_new_method_return(message);
+ ret = dbus_message_append_args(reply, DBUS_TYPE_INVALID);
+ if (!ret) {
+ return EIO;
+ }
+
+ *r = reply;
+ return EOK;
+}
+
+static int dp_monitor_init(struct dp_ctx *dpctx)
+{
+ struct sbus_method_ctx *cli_sm_ctx;
+ struct sbus_method_ctx *srv_sm_ctx;
+ struct dp_sbus_ctx *sbus_ctx;
+ DBusConnection *dbus_conn;
+ char *sbus_address;
+ int ret;
+
+ ret = confdb_get_string(dpctx->cdb, dpctx,
+ "config/services/monitor", "sbusAddress",
+ DEFAULT_SBUS_ADDRESS, &sbus_address);
+ if (ret != EOK) {
+ return ret;
+ }
+
+ sbus_ctx = talloc(dpctx, struct dp_sbus_ctx);
+ if (!sbus_ctx) {
+ return ENOMEM;
+ }
+ sbus_ctx->ev = dpctx->ev;
+
+ ret = sbus_new_connection(sbus_ctx, sbus_ctx->ev,
+ sbus_address,
+ &sbus_ctx->scon_ctx, NULL);
+ if (ret != EOK) {
+ talloc_free(sbus_ctx);
+ return ret;
+ }
+ dbus_conn = sbus_get_connection(sbus_ctx->scon_ctx);
+ dbus_connection_set_exit_on_disconnect(dbus_conn, TRUE);
+
+ /* set up handler for service methods */
+ srv_sm_ctx = talloc_zero(sbus_ctx, struct sbus_method_ctx);
+ if (!srv_sm_ctx) {
+ talloc_free(sbus_ctx);
+ return ENOMEM;
+ }
+ srv_sm_ctx->interface = talloc_strdup(srv_sm_ctx, SERVICE_INTERFACE);
+ srv_sm_ctx->path = talloc_strdup(srv_sm_ctx, SERVICE_PATH);
+ if (!srv_sm_ctx->interface || !srv_sm_ctx->path) {
+ talloc_free(sbus_ctx);
+ return ENOMEM;
+ }
+ srv_sm_ctx->methods = mon_sbus_methods;
+ sbus_conn_add_method_ctx(sbus_ctx->scon_ctx, srv_sm_ctx);
+
+ /* set up client stuff */
+ cli_sm_ctx = talloc(sbus_ctx, struct sbus_method_ctx);
+ if (!cli_sm_ctx) {
+ talloc_free(sbus_ctx);
+ return ENOMEM;
+ }
+ cli_sm_ctx->interface = talloc_strdup(cli_sm_ctx, MONITOR_DBUS_INTERFACE);
+ cli_sm_ctx->path = talloc_strdup(cli_sm_ctx, MONITOR_DBUS_PATH);
+ if (!cli_sm_ctx->interface || !cli_sm_ctx->path) {
+ talloc_free(sbus_ctx);
+ return ENOMEM;
+ }
+ sbus_ctx->sm_ctx = cli_sm_ctx;
+
+ dpctx->sbus_ctx = sbus_ctx;
+
+ return EOK;
+}
+
+static int dp_db_init(struct dp_ctx *dpctx)
+{
+ char *ldb_file;
+ int ret;
+
+ ret = confdb_get_string(dpctx->cdb, dpctx,
+ DATA_PROVIDER_DB_CONF_SEC, "ldbFile",
+ DATA_PROVIDER_DEF_DB_FILE, &ldb_file);
+ if (ret != EOK) {
+ return ret;
+ }
+
+ dpctx->ldb = ldb_init(dpctx, dpctx->ev);
+ if (!dpctx->ldb) {
+ return EIO;
+ }
+
+ ret = ldb_connect(dpctx->ldb, ldb_file, 0, NULL);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(dpctx->ldb);
+ return EIO;
+ }
+
+ return EOK;
+}
+
+static int check_online(DBusMessage *message, void *data, DBusMessage **r);
+
+struct sbus_method dp_sbus_methods[] = {
+ { DP_METHOD_CHECK_ONLINE, check_online },
+ { NULL, NULL }
+};
+
+static int dbus_dp_init(struct sbus_conn_ctx *conn_ctx, void *data)
+{
+ struct dp_ctx *dpctx;
+ struct dp_client *dpcli;
+ DBusConnection *conn;
+ DBusError dbus_error;
+
+ dpctx = talloc_get_type(data, struct dp_ctx);
+ conn = sbus_get_connection(conn_ctx);
+ dbus_error_init(&dbus_error);
+
+ /* hang off this memory to the connection so that when the connection
+ * is freed we can potentially call a destructor */
+
+ dpcli = talloc(conn_ctx, struct dp_client);
+ if (!dpcli) {
+ DEBUG(0,("Out of memory?!\n"));
+ talloc_free(conn_ctx);
+ return ENOMEM;
+ }
+ dpcli->dpctx = dpctx;
+ dpcli->conn = conn;
+
+ /* Attach the client context to the connection context, so that it is
+ * always available when we need to manage the connection. */
+ sbus_conn_set_private_data(conn_ctx, dpcli);
+
+ return EOK;
+}
+
+/* monitor_dbus_init
+ * Set up the monitor service as a D-BUS Server */
+static int dp_srv_init(struct dp_ctx *dpctx)
+{
+ struct sbus_method_ctx *sd_ctx;
+ char *dpbus_address;
+ int ret;
+
+ DEBUG(3, ("Initializing Data Provider D-BUS Server\n"));
+
+ ret = confdb_get_string(dpctx->cdb, dpctx,
+ "config/services/dataprovider", "dpbusAddress",
+ DATA_PROVIDER_ADDRESS, &dpbus_address);
+ if (ret != EOK) {
+ return ret;
+ }
+
+ sd_ctx = talloc_zero(dpctx, struct sbus_method_ctx);
+ if (!sd_ctx) {
+ talloc_free(dpbus_address);
+ return ENOMEM;
+ }
+
+ /* Set up globally-available D-BUS methods */
+ sd_ctx->interface = talloc_strdup(sd_ctx, DATA_PROVIDER_DBUS_INTERFACE);
+ if (!sd_ctx->interface) {
+ talloc_free(dpbus_address);
+ talloc_free(sd_ctx);
+ return ENOMEM;
+ }
+ sd_ctx->path = talloc_strdup(sd_ctx, DATA_PROVIDER_DBUS_PATH);
+ if (!sd_ctx->path) {
+ talloc_free(dpbus_address);
+ talloc_free(sd_ctx);
+ return ENOMEM;
+ }
+ sd_ctx->methods = dp_sbus_methods;
+ sd_ctx->message_handler = sbus_message_handler;
+
+ ret = sbus_new_server(dpctx->ev, sd_ctx, dpbus_address,
+ dbus_dp_init, dpctx);
+
+ return ret;
+}
+
+static int check_online(DBusMessage *message, void *data, DBusMessage **r)
+{
+ return EOK;
+}
+
+/* find list of backends */
+/* find library implementing them */
+/* dload() said library and set up a structure to hold pointers */
+
+static int init_data_providers(struct dp_ctx *dpctx)
+{
+ TALLOC_CTX *tmp_ctx;
+ struct dp_module *module;
+ char **doms;
+ char *sec;
+ char *mod_name;
+ char *path;
+ void *handle;
+ char *mod_init_fn_name;
+ sssm_init_fn_t mod_init_fn;
+ int num_mods;
+ int i, ret;
+
+ tmp_ctx = talloc_new(dpctx);
+ if (!tmp_ctx) {
+ return ENOMEM;
+ }
+
+ ret = confdb_get_domains(dpctx->cdb, tmp_ctx, &doms);
+ if (ret != EOK) {
+ DEBUG(2, ("No domains configured!\n"));
+ return ret;
+ }
+
+ num_mods = 0;
+ for (i = 0; doms[i]; i++) {
+ sec = talloc_asprintf(tmp_ctx, "config/domains/%s", doms[i]);
+ if (!sec) {
+ ret = ENOMEM;
+ goto done;
+ }
+ ret = confdb_get_string(dpctx->cdb, tmp_ctx, sec,
+ "provider", NULL, &mod_name);
+ if (ret != EOK) {
+ goto done;
+ }
+
+ /* the LOCAL domain does not have a backend at the moment */
+ if (strcasecmp(mod_name, "LOCAL") == 0) {
+ continue;
+ }
+
+ path = talloc_asprintf(tmp_ctx, "%s/libsss_%s.so",
+ DATA_PROVIDER_PLUGINS_PATH, mod_name);
+
+ handle = dlopen(path, RTLD_NOW);
+ if (!handle) {
+ DEBUG(0, ("Unable to load %s module with path (%s), error: %s\n",
+ mod_name, path, dlerror()));
+ ret = ELIBACC;
+ goto done;
+ }
+
+ mod_init_fn_name = talloc_asprintf(tmp_ctx, "sssm_%s_init", mod_name);
+ if (!mod_init_fn_name) {
+ ret = ENOMEM;
+ goto done;
+ }
+
+ mod_init_fn = (sssm_init_fn_t)dlsym(handle, mod_init_fn_name);
+ if (!mod_init_fn) {
+ DEBUG(0, ("Unable to load init fn from module %s, error: %s\n",
+ mod_name, dlerror()));
+ ret = ELIBBAD;
+ goto done;
+ }
+
+ dpctx->modules = talloc_array(tmp_ctx, struct dp_module *, num_mods +1);
+ if (!dpctx->modules) {
+ ret = ENOMEM;
+ goto done;
+ }
+ module = talloc(dpctx->modules, struct dp_module);
+ if (!module) {
+ ret = ENOMEM;
+ goto done;
+ }
+ dpctx->modules[num_mods] = module;
+
+ module->domain = talloc_strdup(dpctx->modules, doms[i]);
+ module->name = talloc_steal(dpctx->modules, mod_name);
+
+ ret = mod_init_fn(module, &module->ops, &module->pvt_data);
+ if (ret != EOK) {
+ DEBUG(0, ("Error (%d) in module (%s) initialization!\n",
+ ret, mod_name));
+ continue;
+ }
+
+ num_mods++;
+ }
+
+ ret = EOK;
+
+done:
+ talloc_free(doms);
+ return ret;
+}
+
+void dp_task_init(struct task_server *task)
+{
+ struct dp_ctx *dpctx;
+ int ret;
+
+ task_server_set_title(task, "sssd[datap]");
+
+ dpctx = talloc_zero(task, struct dp_ctx);
+ if (!dpctx) {
+ task_server_terminate(task, "fatal error initializing dp_ctx\n");
+ return;
+ }
+ dpctx->ev = task->event_ctx;
+ dpctx->task = task;
+
+ ret = confdb_init(task, task->event_ctx, &dpctx->cdb);
+ if (ret != EOK) {
+ task_server_terminate(task, "fatal error initializing confdb\n");
+ return;
+ }
+
+ ret = dp_db_init(dpctx);
+ if (ret != EOK) {
+ task_server_terminate(task, "fatal error opening database\n");
+ return;
+ }
+
+ ret = dp_monitor_init(dpctx);
+ if (ret != EOK) {
+ task_server_terminate(task, "fatal error setting up monitor bus\n");
+ return;
+ }
+
+ ret = dp_srv_init(dpctx);
+ if (ret != EOK) {
+ task_server_terminate(task, "fatal error setting up server bus\n");
+ return;
+ }
+
+ ret = init_data_providers(dpctx);
+ if (ret != EOK) {
+ task_server_terminate(task, "fatal error initializing data providers\n");
+ return;
+ }
+}
diff --git a/server/providers/data_provider.h b/server/providers/data_provider.h
new file mode 100644
index 00000000..a5c0a417
--- /dev/null
+++ b/server/providers/data_provider.h
@@ -0,0 +1,73 @@
+/*
+ SSSD
+
+ Data Provider, private header file
+
+ 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/>.
+*/
+
+#ifndef __DATA_PROVIDER_H__
+#define __DATA_PROVIDER_H__
+
+#include <stdint.h>
+#include <sys/un.h>
+#include "talloc.h"
+#include "events.h"
+#include "ldb.h"
+
+#define DATA_PROVIDER_VERSION 0x0001
+#define DATA_PROVIDER_SERVICE_NAME "data-provider"
+#define DATA_PROVIDER_ADDRESS "unix:path=/var/lib/sss/pipes/private/dbus-dp"
+
+#define DATA_PROVIDER_DEF_DB_FILE "/var/lib/sss/db/sssd.ldb"
+#define DATA_PROVIDER_DB_CONF_SEC "config/services/nss"
+
+#define DATA_PROVIDER_PLUGINS_PATH "/usr/lib/sssd"
+
+struct dp_mod_ops {
+ int (*check_online)(void *pvt_data, int *reply);
+};
+
+typedef int (*sssm_init_fn_t)(TALLOC_CTX *, struct dp_mod_ops **, void **);
+
+struct dp_module {
+ const char *name;
+ const char *domain;
+ struct dp_mod_ops *ops;
+ void *pvt_data;
+};
+
+struct dp_sbus_ctx {
+ struct event_context *ev;
+ struct sbus_method_ctx *sm_ctx;
+ struct sbus_conn_ctx *scon_ctx;
+};
+
+struct dp_ctx {
+ struct event_context *ev;
+ struct task_server *task;
+ struct confdb_ctx *cdb;
+ struct ldb_context *ldb;
+ struct dp_sbus_ctx *sbus_ctx;
+ struct dp_module **modules;
+};
+
+struct dp_client {
+ struct dp_ctx *dpctx;
+ DBusConnection *conn;
+};
+
+#endif /* __DATA_PROVIDER_ */
diff --git a/server/providers/providers.h b/server/providers/providers.h
new file mode 100644
index 00000000..a1cc1fc4
--- /dev/null
+++ b/server/providers/providers.h
@@ -0,0 +1,22 @@
+/*
+ SSSD
+
+ Data Provider, public header file
+
+ 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/>.
+*/
+
+void dp_task_init(struct task_server *task);
generated by cgit (git 2.34.1) at 2024-12-18 12:21:55 +0000