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-rw-r--r--src/shared/dbus-common.c100
-rw-r--r--src/shared/dbus-common.h7
-rw-r--r--src/shared/label.c15
-rw-r--r--src/shared/selinux-util.c38
-rw-r--r--src/shared/selinux-util.h27
5 files changed, 121 insertions, 66 deletions
diff --git a/src/shared/dbus-common.c b/src/shared/dbus-common.c
index c53bf59eb3..ee281e57f4 100644
--- a/src/shared/dbus-common.c
+++ b/src/shared/dbus-common.c
@@ -229,7 +229,8 @@ int bus_connect_system_polkit(DBusConnection **_bus, DBusError *error) {
dbus_connection_set_exit_on_disconnect(bus, FALSE);
- if ((r = sync_auth(bus, error)) < 0) {
+ r = sync_auth(bus, error);
+ if (r < 0) {
dbus_connection_close(bus);
dbus_connection_unref(bus);
return r;
@@ -273,7 +274,7 @@ DBusHandlerResult bus_default_message_handler(
const BusBoundProperties *bound_properties) {
DBusError error;
- DBusMessage *reply = NULL;
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
int r;
assert(c);
@@ -283,7 +284,8 @@ DBusHandlerResult bus_default_message_handler(
if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect") && introspection) {
- if (!(reply = dbus_message_new_method_return(message)))
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
goto oom;
if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID))
@@ -334,14 +336,12 @@ get_prop:
data = (char*)bp->base + p->offset;
if (p->indirect)
data = *(void**)data;
- r = p->append(&sub, property, data);
- if (r < 0) {
- if (r == -ENOMEM)
- goto oom;
- dbus_message_unref(reply);
+ r = p->append(&sub, property, data);
+ if (r == -ENOMEM)
+ goto oom;
+ if (r < 0)
return bus_send_error_reply(c, message, NULL, r);
- }
if (!dbus_message_iter_close_container(&iter, &sub))
goto oom;
@@ -364,7 +364,8 @@ get_prop:
return bus_send_error_reply(c, message, &error, -EINVAL);
}
- if (!(reply = dbus_message_new_method_return(message)))
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
goto oom;
dbus_message_iter_init_append(reply, &iter);
@@ -388,13 +389,10 @@ get_prop:
if (p->indirect)
data = *(void**)data;
r = p->append(&sub3, p->property, data);
- if (r < 0) {
- if (r == -ENOMEM)
- goto oom;
-
- dbus_message_unref(reply);
+ if (r == -ENOMEM)
+ goto oom;
+ if (r < 0)
return bus_send_error_reply(c, message, NULL, r);
- }
if (!dbus_message_iter_close_container(&sub2, &sub3) ||
!dbus_message_iter_close_container(&sub, &sub2))
@@ -506,16 +504,12 @@ set_prop:
if (!dbus_connection_send(c, reply, NULL))
goto oom;
- dbus_message_unref(reply);
return DBUS_HANDLER_RESULT_HANDLED;
}
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
oom:
- if (reply)
- dbus_message_unref(reply);
-
dbus_error_free(&error);
return DBUS_HANDLER_RESULT_NEED_MEMORY;
@@ -720,7 +714,7 @@ const char *bus_errno_to_dbus(int error) {
}
DBusHandlerResult bus_send_error_reply(DBusConnection *c, DBusMessage *message, DBusError *berror, int error) {
- DBusMessage *reply = NULL;
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
const char *name, *text;
if (berror && dbus_error_is_set(berror)) {
@@ -731,14 +725,13 @@ DBusHandlerResult bus_send_error_reply(DBusConnection *c, DBusMessage *message,
text = strerror(-error);
}
- if (!(reply = dbus_message_new_error(message, name, text)))
+ reply = dbus_message_new_error(message, name, text);
+ if (!reply)
goto oom;
if (!dbus_connection_send(c, reply, NULL))
goto oom;
- dbus_message_unref(reply);
-
if (berror)
dbus_error_free(berror);
@@ -896,7 +889,8 @@ int bus_parse_strv_iter(DBusMessageIter *iter, char ***_l) {
dbus_message_iter_next(&sub);
}
- if (!(l = new(char*, n+1)))
+ l = new(char*, n+1);
+ if (!l)
return -ENOMEM;
dbus_message_iter_recurse(iter, &sub);
@@ -1126,7 +1120,7 @@ static void release_name_pending_cb(DBusPendingCall *pending, void *userdata) {
}
void bus_async_unregister_and_exit(DBusConnection *bus, const char *name) {
- DBusMessage *m = NULL;
+ _cleanup_dbus_message_unref_ DBusMessage *m = NULL;
DBusPendingCall *pending = NULL;
assert(bus);
@@ -1156,7 +1150,6 @@ void bus_async_unregister_and_exit(DBusConnection *bus, const char *name) {
if (!dbus_pending_call_set_notify(pending, release_name_pending_cb, bus, NULL))
goto oom;
- dbus_message_unref(m);
dbus_pending_call_unref(pending);
return;
@@ -1168,9 +1161,6 @@ oom:
dbus_pending_call_cancel(pending);
dbus_pending_call_unref(pending);
}
-
- if (m)
- dbus_message_unref(m);
}
DBusHandlerResult bus_exit_idle_filter(DBusConnection *bus, DBusMessage *m, void *userdata) {
@@ -1195,7 +1185,7 @@ pid_t bus_get_unix_process_id(
const char *name,
DBusError *error) {
- DBusMessage *m = NULL, *reply = NULL;
+ _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
uint32_t pid = 0;
m = dbus_message_new_method_call(
@@ -1205,7 +1195,7 @@ pid_t bus_get_unix_process_id(
"GetConnectionUnixProcessID");
if (!m) {
dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, NULL);
- goto finish;
+ return 0;
}
if (!dbus_message_append_args(
@@ -1213,28 +1203,21 @@ pid_t bus_get_unix_process_id(
DBUS_TYPE_STRING, &name,
DBUS_TYPE_INVALID)) {
dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, NULL);
- goto finish;
+ return 0;
}
reply = dbus_connection_send_with_reply_and_block(connection, m, -1, error);
if (!reply)
- goto finish;
+ return 0;
if (dbus_set_error_from_message(error, reply))
- goto finish;
+ return 0;
if (!dbus_message_get_args(
reply, error,
DBUS_TYPE_UINT32, &pid,
DBUS_TYPE_INVALID))
- goto finish;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
+ return 0;
return (pid_t) pid;
}
@@ -1265,7 +1248,8 @@ int bus_method_call_with_reply(
int first_arg_type, ...) {
DBusError error;
- DBusMessage *m, *reply;
+ _cleanup_dbus_message_unref_ DBusMessage *m = NULL;
+ DBusMessage *reply;
va_list ap;
int r = 0;
@@ -1308,9 +1292,6 @@ int bus_method_call_with_reply(
dbus_message_unref(reply);
finish:
- if (m)
- dbus_message_unref(m);
-
if (return_error)
*return_error = error;
else
@@ -1319,8 +1300,27 @@ finish:
return r;
}
+void bus_message_unrefp(DBusMessage **reply) {
+ if (!reply)
+ return;
+
+ if (!*reply)
+ return;
+
+ dbus_message_unref(*reply);
+}
+
+const char *bus_message_get_sender_with_fallback(DBusMessage *m) {
+ const char *s;
+
+ assert(m);
+
+ s = dbus_message_get_sender(m);
+ if (s)
+ return s;
+
+ /* When the message came in from a direct connection the
+ * message will have no sender. We fix that here. */
-void dbus_message_unref_p(DBusMessage **reply) {
- if (*reply)
- dbus_message_unref(*reply);
+ return ":no-sender";
}
diff --git a/src/shared/dbus-common.h b/src/shared/dbus-common.h
index 7294206bc4..394ab4cb60 100644
--- a/src/shared/dbus-common.h
+++ b/src/shared/dbus-common.h
@@ -214,5 +214,8 @@ int bus_method_call_with_reply(DBusConnection *bus,
DBusError *return_error,
int first_arg_type, ...);
-void dbus_message_unref_p(DBusMessage **reply);
-#define _cleanup_dbus_msg_unref_ __attribute__((cleanup(dbus_message_unref_p)))
+const char *bus_message_get_sender_with_fallback(DBusMessage *m);
+
+void bus_message_unrefp(DBusMessage **reply);
+
+#define _cleanup_dbus_message_unref_ __attribute__((cleanup(bus_message_unrefp)))
diff --git a/src/shared/label.c b/src/shared/label.c
index 7aa362106e..2062fc316c 100644
--- a/src/shared/label.c
+++ b/src/shared/label.c
@@ -31,25 +31,12 @@
#include "path-util.h"
#ifdef HAVE_SELINUX
+#include "selinux-util.h"
#include <selinux/selinux.h>
#include <selinux/label.h>
static struct selabel_handle *label_hnd = NULL;
-static int use_selinux_cached = -1;
-
-static inline bool use_selinux(void) {
-
- if (use_selinux_cached < 0)
- use_selinux_cached = is_selinux_enabled() > 0;
-
- return use_selinux_cached;
-}
-
-void label_retest_selinux(void) {
- use_selinux_cached = -1;
-}
-
#endif
int label_init(const char *prefix) {
diff --git a/src/shared/selinux-util.c b/src/shared/selinux-util.c
new file mode 100644
index 0000000000..4310a97539
--- /dev/null
+++ b/src/shared/selinux-util.c
@@ -0,0 +1,38 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <selinux/selinux.h>
+
+#include "selinux-util.h"
+
+static int use_selinux_cached = -1;
+
+bool use_selinux(void) {
+
+ if (use_selinux_cached < 0)
+ use_selinux_cached = is_selinux_enabled() > 0;
+
+ return use_selinux_cached;
+}
+
+void retest_selinux(void) {
+ use_selinux_cached = -1;
+}
diff --git a/src/shared/selinux-util.h b/src/shared/selinux-util.h
new file mode 100644
index 0000000000..4b81202741
--- /dev/null
+++ b/src/shared/selinux-util.h
@@ -0,0 +1,27 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdbool.h>
+
+bool use_selinux(void);
+void retest_selinux(void);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-04 06:26:37 +0000