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authorMarcel Holtmann <marcel@holtmann.org>2006-10-27 13:29:41 +0000
committerMarcel Holtmann <marcel@holtmann.org>2006-10-27 13:29:41 +0000
commit4a994aaf126824b2b555eab960d3b68531171c92 (patch)
tree9fe262d94cf07a288a3f987f7f2637510e0ab189
parent7e253f2199415446ba3701345efb4bcf763584ac (diff)
Add example authorization agent
-rw-r--r--hcid/Makefile.am6
-rw-r--r--hcid/auth-agent.c310
2 files changed, 315 insertions, 1 deletions
diff --git a/hcid/Makefile.am b/hcid/Makefile.am
index 48ca47b8..98f9e8ad 100644
--- a/hcid/Makefile.am
+++ b/hcid/Makefile.am
@@ -15,7 +15,7 @@ endif
sbin_PROGRAMS = hcid
-noinst_PROGRAMS = passkey-agent service-agent
+noinst_PROGRAMS = passkey-agent service-agent auth-agent
hcid_SOURCES = main.c security.c device.c logging.c storage.c \
sdp.c sdp.h hcid.h parser.h parser.y \
@@ -35,6 +35,10 @@ service_agent_SOURCES = service-agent.c
service_agent_LDADD = @DBUS_LIBS@
+auth_agent_SOURCES = auth-agent.c
+
+auth_agent_LDADD = @DBUS_LIBS@
+
AM_CFLAGS = @BLUEZ_CFLAGS@ @DBUS_CFLAGS@
INCLUDES = -I$(top_srcdir)/common
diff --git a/hcid/auth-agent.c b/hcid/auth-agent.c
new file mode 100644
index 00000000..c0ab46c5
--- /dev/null
+++ b/hcid/auth-agent.c
@@ -0,0 +1,310 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2005-2006 Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <getopt.h>
+#include <string.h>
+
+#include <dbus/dbus.h>
+
+#define INTERFACE "org.bluez.Security"
+
+static volatile sig_atomic_t __io_canceled = 0;
+static volatile sig_atomic_t __io_terminated = 0;
+
+static void sig_term(int sig)
+{
+ __io_canceled = 1;
+}
+
+static DBusHandlerResult agent_filter(DBusConnection *conn,
+ DBusMessage *msg, void *data)
+{
+ const char *name, *old, *new;
+
+ if (!dbus_message_is_signal(msg, DBUS_INTERFACE_DBUS, "NameOwnerChanged"))
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+
+ if (!dbus_message_get_args(msg, NULL,
+ DBUS_TYPE_STRING, &name, DBUS_TYPE_STRING, &old,
+ DBUS_TYPE_STRING, &new, DBUS_TYPE_INVALID)) {
+ fprintf(stderr, "Invalid arguments for NameOwnerChanged signal");
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ }
+
+ if (!strcmp(name, "org.bluez") && *new == '\0') {
+ fprintf(stderr, "Authorization service has been terminated\n");
+ __io_terminated = 1;
+ }
+
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+static DBusHandlerResult authorize_message(DBusConnection *conn,
+ DBusMessage *msg, void *data)
+{
+ DBusMessage *reply;
+ dbus_bool_t result = TRUE;
+
+ if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_INVALID)) {
+ fprintf(stderr, "Invalid arguments for Authorize method");
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ }
+
+ reply = dbus_message_new_method_return(msg);
+ if (!reply) {
+ fprintf(stderr, "Can't create reply message\n");
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ }
+
+ dbus_message_append_args(reply, DBUS_TYPE_BOOLEAN, &result,
+ DBUS_TYPE_INVALID);
+
+ dbus_connection_send(conn, reply, NULL);
+
+ dbus_connection_flush(conn);
+
+ dbus_message_unref(reply);
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+}
+
+static DBusHandlerResult cancel_message(DBusConnection *conn,
+ DBusMessage *msg, void *data)
+{
+ return DBUS_HANDLER_RESULT_HANDLED;
+}
+
+static DBusHandlerResult release_message(DBusConnection *conn,
+ DBusMessage *msg, void *data)
+{
+ if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_INVALID)) {
+ fprintf(stderr, "Invalid arguments for Release method");
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ }
+
+ if (!__io_canceled)
+ fprintf(stderr, "Authorization agent has been released\n");
+
+ __io_terminated = 1;
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+}
+
+static DBusHandlerResult auth_message(DBusConnection *conn,
+ DBusMessage *msg, void *data)
+{
+ if (dbus_message_is_method_call(msg, "org.bluez.AuthorizationAgent", "Authorize"))
+ return authorize_message(conn, msg, data);
+
+ if (dbus_message_is_method_call(msg, "org.bluez.AuthorizationAgent", "Cancel"))
+ return cancel_message(conn, msg, data);
+
+ if (dbus_message_is_method_call(msg, "org.bluez.AuthorizationAgent", "Release"))
+ return release_message(conn, msg, data);
+
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+static const DBusObjectPathVTable auth_table = {
+ .message_function = auth_message,
+};
+
+static int register_auth(DBusConnection *conn, const char *auth_path)
+{
+ DBusMessage *msg, *reply;
+ DBusError err;
+
+ if (!dbus_connection_register_object_path(conn, auth_path,
+ &auth_table, NULL)) {
+ fprintf(stderr, "Can't register object path for agent\n");
+ return -1;
+ }
+
+ msg = dbus_message_new_method_call("org.bluez", "/org/bluez",
+ INTERFACE, "RegisterDefaultAuthorizationAgent");
+ if (!msg) {
+ fprintf(stderr, "Can't allocate new method call\n");
+ return -1;
+ }
+
+ dbus_message_append_args(msg, DBUS_TYPE_STRING, &auth_path,
+ DBUS_TYPE_INVALID);
+
+ dbus_error_init(&err);
+
+ reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
+
+ dbus_message_unref(msg);
+
+ if (!reply) {
+ fprintf(stderr, "Can't register authorization agent\n");
+ if (dbus_error_is_set(&err)) {
+ fprintf(stderr, "%s\n", err.message);
+ dbus_error_free(&err);
+ }
+ return -1;
+ }
+
+ dbus_message_unref(reply);
+
+ dbus_connection_flush(conn);
+
+ return 0;
+}
+
+static int unregister_auth(DBusConnection *conn, const char *auth_path)
+{
+ DBusMessage *msg, *reply;
+ DBusError err;
+
+ msg = dbus_message_new_method_call("org.bluez", "/org/bluez",
+ INTERFACE, "UnregisterDefaultAuthorizationAgent");
+ if (!msg) {
+ fprintf(stderr, "Can't allocate new method call\n");
+ dbus_connection_unref(conn);
+ exit(1);
+ }
+
+ dbus_message_append_args(msg, DBUS_TYPE_STRING, &auth_path,
+ DBUS_TYPE_INVALID);
+
+ dbus_error_init(&err);
+
+ reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
+
+ dbus_message_unref(msg);
+
+ if (!reply) {
+ fprintf(stderr, "Can't unregister authorization agent\n");
+ if (dbus_error_is_set(&err)) {
+ fprintf(stderr, "%s\n", err.message);
+ dbus_error_free(&err);
+ }
+ return -1;
+ }
+
+ dbus_message_unref(reply);
+
+ dbus_connection_flush(conn);
+
+ dbus_connection_unregister_object_path(conn, auth_path);
+
+ return 0;
+}
+
+static void usage(void)
+{
+ printf("Bluetooth authorization agent ver %s\n\n", VERSION);
+
+ printf("Usage:\n"
+ "\tauth-agent [--path auth-path]\n"
+ "\n");
+}
+
+static struct option main_options[] = {
+ { "path", 1, 0, 'p' },
+ { "help", 0, 0, 'h' },
+ { 0, 0, 0, 0 }
+};
+
+int main(int argc, char *argv[])
+{
+ struct sigaction sa;
+ DBusConnection *conn;
+ char match_string[128], default_path[128], *auth_path = NULL;
+ int opt;
+
+ snprintf(default_path, sizeof(default_path),
+ "/org/bluez/auth_agent_%d", getpid());
+
+ while ((opt = getopt_long(argc, argv, "+p:h", main_options, NULL)) != EOF) {
+ switch(opt) {
+ case 'p':
+ if (optarg[0] != '/') {
+ fprintf(stderr, "Invalid path\n");
+ exit(1);
+ }
+ auth_path = strdup(optarg);
+ break;
+ case 'h':
+ usage();
+ exit(0);
+ default:
+ exit(1);
+ }
+ }
+
+ argc -= optind;
+ argv += optind;
+ optind = 0;
+
+ if (!auth_path)
+ auth_path = strdup(default_path);
+
+ conn = dbus_bus_get(DBUS_BUS_SYSTEM, NULL);
+ if (!conn) {
+ fprintf(stderr, "Can't get on system bus");
+ exit(1);
+ }
+
+ if (register_auth(conn, auth_path) < 0) {
+ dbus_connection_unref(conn);
+ exit(1);
+ }
+
+ if (!dbus_connection_add_filter(conn, agent_filter, NULL, NULL))
+ fprintf(stderr, "Can't add signal filter");
+
+ snprintf(match_string, sizeof(match_string),
+ "interface=%s,member=NameOwnerChanged,arg0=%s",
+ DBUS_INTERFACE_DBUS, "org.bluez");
+
+ dbus_bus_add_match(conn, match_string, NULL);
+
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_flags = SA_NOCLDSTOP;
+ sa.sa_handler = sig_term;
+ sigaction(SIGTERM, &sa, NULL);
+ sigaction(SIGINT, &sa, NULL);
+
+ while (!__io_canceled && !__io_terminated) {
+ if (dbus_connection_read_write_dispatch(conn, 500) != TRUE)
+ break;
+ }
+
+ if (!__io_terminated)
+ unregister_auth(conn, auth_path);
+
+ dbus_connection_unref(conn);
+
+ return 0;
+}