-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
- This file is part of systemd.
-
Copyright 2013 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 "strv.h"
-#include "set.h"
+#include "alloc-util.h"
#include "bus-internal.h"
+#include "bus-introspect.h"
#include "bus-message.h"
-#include "bus-type.h"
+#include "bus-objects.h"
#include "bus-signature.h"
-#include "bus-introspect.h"
-#include "bus-util.h"
#include "bus-slot.h"
-#include "bus-objects.h"
+#include "bus-type.h"
+#include "bus-util.h"
+#include "set.h"
+#include "string-util.h"
+#include "strv.h"
static int node_vtable_get_userdata(
sd_bus *bus,
sd_bus_error *error) {
sd_bus_slot *s;
- void *u;
+ void *u, *found_u;
int r;
assert(bus);
if (c->find) {
bus->current_slot = sd_bus_slot_ref(s);
bus->current_userdata = u;
- r = c->find(bus, path, c->interface, u, &u, error);
+ r = c->find(bus, path, c->interface, u, &found_u, error);
bus->current_userdata = NULL;
bus->current_slot = sd_bus_slot_unref(s);
return -sd_bus_error_get_errno(error);
if (r == 0)
return r;
- }
+ } else
+ found_u = u;
if (userdata)
- *userdata = u;
+ *userdata = found_u;
return 1;
}
+static void *vtable_method_convert_userdata(const sd_bus_vtable *p, void *u) {
+ assert(p);
+
+ return (uint8_t*) u + p->x.method.offset;
+}
+
static void *vtable_property_convert_userdata(const sd_bus_vtable *p, void *u) {
assert(p);
continue;
}
- if (!object_path_is_valid(*k)){
+ if (!object_path_is_valid(*k)) {
free(*k);
r = -EINVAL;
continue;
return 0;
}
+enum {
+ /* if set, add_subtree() works recursively */
+ CHILDREN_RECURSIVE = 1 << 0,
+ /* if set, add_subtree() scans object-manager hierarchies recursively */
+ CHILDREN_SUBHIERARCHIES = 1 << 1,
+};
+
static int add_subtree_to_set(
sd_bus *bus,
const char *prefix,
struct node *n,
+ unsigned int flags,
Set *s,
sd_bus_error *error) {
if (r < 0 && r != -EEXIST)
return r;
- r = add_subtree_to_set(bus, prefix, i, s, error);
- if (r < 0)
- return r;
- if (bus->nodes_modified)
- return 0;
+ if ((flags & CHILDREN_RECURSIVE) &&
+ ((flags & CHILDREN_SUBHIERARCHIES) || !i->object_managers)) {
+ r = add_subtree_to_set(bus, prefix, i, flags, s, error);
+ if (r < 0)
+ return r;
+ if (bus->nodes_modified)
+ return 0;
+ }
}
return 0;
sd_bus *bus,
const char *prefix,
struct node *n,
+ unsigned int flags,
Set **_s,
sd_bus_error *error) {
if (!s)
return -ENOMEM;
- r = add_subtree_to_set(bus, prefix, n, s, error);
+ r = add_subtree_to_set(bus, prefix, n, flags, s, error);
if (r < 0) {
set_free_free(s);
return r;
assert(found_object);
LIST_FOREACH(callbacks, c, first) {
- _cleanup_bus_error_free_ sd_bus_error error_buffer = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error_buffer = SD_BUS_ERROR_NULL;
sd_bus_slot *slot;
if (bus->nodes_modified)
if (cap == 0)
cap = CAP_SYS_ADMIN;
else
- cap --;
+ cap--;
r = sd_bus_query_sender_privilege(m, cap);
if (r < 0)
bool require_fallback,
bool *found_object) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
const char *signature;
void *u;
int r;
if (bus->nodes_modified)
return 0;
+ u = vtable_method_convert_userdata(c->vtable, u);
+
*found_object = true;
if (c->last_iteration == bus->iteration_counter)
bool is_get,
bool *found_object) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
sd_bus_slot *slot;
void *u = NULL;
int r;
return 1;
for (v = c->vtable+1; v->type != _SD_BUS_VTABLE_END; v++) {
- if (v->type != _SD_BUS_VTABLE_PROPERTY && v->type != _SD_BUS_VTABLE_WRITABLE_PROPERTY)
+ if (!IN_SET(v->type, _SD_BUS_VTABLE_PROPERTY, _SD_BUS_VTABLE_WRITABLE_PROPERTY))
continue;
if (v->flags & SD_BUS_VTABLE_HIDDEN)
continue;
+ if (v->flags & SD_BUS_VTABLE_PROPERTY_EXPLICIT)
+ continue;
+
r = vtable_append_one_property(bus, reply, path, c, v, userdata, error);
if (r < 0)
return r;
const char *iface,
bool *found_object) {
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
struct node_vtable *c;
bool found_interface;
int r;
streq(iface, "org.freedesktop.DBus.Introspectable");
LIST_FOREACH(vtables, c, first) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
void *u;
if (require_fallback && !c->is_fallback)
return 0;
}
+ if (!*found_object)
+ return 0;
+
if (!found_interface) {
r = sd_bus_reply_method_errorf(
m,
}
LIST_FOREACH(vtables, c, n->vtables) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
if (require_fallback && !c->is_fallback)
continue;
bool require_fallback,
bool *found_object) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_set_free_free_ Set *s = NULL;
const char *previous_interface = NULL;
struct introspect intro;
assert(n);
assert(found_object);
- r = get_child_nodes(bus, m->path, n, &s, &error);
+ r = get_child_nodes(bus, m->path, n, 0, &s, &error);
if (r < 0)
return bus_maybe_reply_error(m, r, &error);
if (bus->nodes_modified)
/* Nothing?, let's see if we exist at all, and if not
* refuse to do anything */
r = bus_node_exists(bus, n, m->path, require_fallback);
- if (r <= 0)
+ if (r <= 0) {
+ r = bus_maybe_reply_error(m, r, &error);
goto finish;
+ }
if (bus->nodes_modified) {
r = 0;
goto finish;
if (r < 0)
return r;
+ r = sd_bus_message_append(reply, "{sa{sv}}", "org.freedesktop.DBus.Peer", 0);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(reply, "{sa{sv}}", "org.freedesktop.DBus.Introspectable", 0);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(reply, "{sa{sv}}", "org.freedesktop.DBus.Properties", 0);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(reply, "{sa{sv}}", "org.freedesktop.DBus.ObjectManager", 0);
+ if (r < 0)
+ return r;
+
found_something = true;
}
bool require_fallback,
bool *found_object) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_set_free_free_ Set *s = NULL;
Iterator i;
char *path;
if (require_fallback || !n->object_managers)
return 0;
- r = get_child_nodes(bus, m->path, n, &s, &error);
+ r = get_child_nodes(bus, m->path, n, CHILDREN_RECURSIVE, &s, &error);
if (r < 0)
- return r;
+ return bus_maybe_reply_error(m, r, &error);
if (bus->nodes_modified)
return 0;
SET_FOREACH(path, s, i) {
r = object_manager_serialize_path_and_fallbacks(bus, reply, path, &error);
if (r < 0)
- return r;
+ return bus_maybe_reply_error(m, r, &error);
if (bus->nodes_modified)
return 0;
if (!*found_object) {
r = bus_node_exists(bus, n, m->path, require_fallback);
if (r < 0)
- return r;
+ return bus_maybe_reply_error(m, r, NULL);
if (bus->nodes_modified)
return 0;
if (r > 0)
assert(bus);
assert(m);
- if (bus->hello_flags & KDBUS_HELLO_MONITOR)
+ if (bus->is_monitor)
return 0;
if (m->header->type != SD_BUS_MESSAGE_METHOD_CALL)
e = strrchr(path, '/');
assert(e);
- p = strndupa(path, MAX(1, path - e));
+ p = strndupa(path, MAX(1, e - path));
parent = bus_node_allocate(bus, p);
if (!parent)
return NULL;
n->parent = parent;
- n->path = s;
- s = NULL; /* do not free */
+ n->path = TAKE_PTR(s);
r = hashmap_put(bus->nodes, n->path, n);
if (r < 0) {
free(n->path);
- free(n);
- return NULL;
+ return mfree(n);
}
if (parent)
n->object_managers)
return;
- assert(hashmap_remove(b->nodes, n->path) == n);
+ assert_se(hashmap_remove(b->nodes, n->path) == n);
if (n->parent)
LIST_REMOVE(siblings, n->parent->child, n);
free(n);
}
+static int bus_find_parent_object_manager(sd_bus *bus, struct node **out, const char *path) {
+ struct node *n;
+
+ assert(bus);
+ assert(path);
+
+ n = hashmap_get(bus->nodes, path);
+ if (!n) {
+ char *prefix;
+
+ prefix = alloca(strlen(path) + 1);
+ OBJECT_PATH_FOREACH_PREFIX(prefix, path) {
+ n = hashmap_get(bus->nodes, prefix);
+ if (n)
+ break;
+ }
+ }
+
+ while (n && !n->object_managers)
+ n = n->parent;
+
+ if (out)
+ *out = n;
+ return !!n;
+}
+
static int bus_add_object(
sd_bus *bus,
sd_bus_slot **slot,
int r;
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(callback, -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
return bus_add_object(bus, slot, true, prefix, callback, userdata);
}
-static unsigned long vtable_member_hash_func(const void *a, const uint8_t hash_key[HASH_KEY_SIZE]) {
+static void vtable_member_hash_func(const void *a, struct siphash *state) {
const struct vtable_member *m = a;
- uint8_t hash_key2[HASH_KEY_SIZE];
- unsigned long ret;
assert(m);
- ret = string_hash_func(m->path, hash_key);
-
- /* Use a slightly different hash key for the interface */
- memcpy(hash_key2, hash_key, HASH_KEY_SIZE);
- hash_key2[0]++;
- ret ^= string_hash_func(m->interface, hash_key2);
-
- /* And an even different one for the member */
- hash_key2[0]++;
- ret ^= string_hash_func(m->member, hash_key2);
-
- return ret;
+ string_hash_func(m->path, state);
+ string_hash_func(m->interface, state);
+ string_hash_func(m->member, state);
}
static int vtable_member_compare_func(const void *a, const void *b) {
int r;
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(interface_name_is_valid(interface), -EINVAL);
assert_return(vtable, -EINVAL);
goto fail;
}
- /* Fall through */
-
+ _fallthrough_;
case _SD_BUS_VTABLE_PROPERTY: {
struct vtable_member *m;
if (!member_name_is_valid(v->x.property.member) ||
!signature_is_single(v->x.property.signature, false) ||
!(v->x.property.get || bus_type_is_basic(v->x.property.signature[0]) || streq(v->x.property.signature, "as")) ||
- v->flags & SD_BUS_VTABLE_METHOD_NO_REPLY ||
+ (v->flags & SD_BUS_VTABLE_METHOD_NO_REPLY) ||
(!!(v->flags & SD_BUS_VTABLE_PROPERTY_CONST) + !!(v->flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE) + !!(v->flags & SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION)) > 1 ||
+ ((v->flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE) && (v->flags & SD_BUS_VTABLE_PROPERTY_EXPLICIT)) ||
(v->flags & SD_BUS_VTABLE_UNPRIVILEGED && v->type == _SD_BUS_VTABLE_PROPERTY)) {
r = -EINVAL;
goto fail;
int r;
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(callback, -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
bool *found_interface,
char **names) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
bool has_invalidating = false, has_changing = false;
struct vtable_member key = {};
struct node_vtable *c;
* as changing in the message. */
for (v = c->vtable+1; v->type != _SD_BUS_VTABLE_END; v++) {
- if (v->type != _SD_BUS_VTABLE_PROPERTY && v->type != _SD_BUS_VTABLE_WRITABLE_PROPERTY)
+ if (!IN_SET(v->type, _SD_BUS_VTABLE_PROPERTY, _SD_BUS_VTABLE_WRITABLE_PROPERTY))
continue;
if (v->flags & SD_BUS_VTABLE_HIDDEN)
const sd_bus_vtable *v;
for (v = c->vtable+1; v->type != _SD_BUS_VTABLE_END; v++) {
- if (v->type != _SD_BUS_VTABLE_PROPERTY && v->type != _SD_BUS_VTABLE_WRITABLE_PROPERTY)
+ if (!IN_SET(v->type, _SD_BUS_VTABLE_PROPERTY, _SD_BUS_VTABLE_WRITABLE_PROPERTY))
continue;
if (v->flags & SD_BUS_VTABLE_HIDDEN)
int r;
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(interface_name_is_valid(interface), -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
char **names;
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(interface_name_is_valid(interface), -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
return 0;
LIST_FOREACH(vtables, c, n->vtables) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
void *u = NULL;
if (require_fallback && !c->is_fallback)
return 0;
}
-int sd_bus_emit_object_added(sd_bus *bus, const char *path) {
+_public_ int sd_bus_emit_object_added(sd_bus *bus, const char *path) {
BUS_DONT_DESTROY(bus);
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
+ struct node *object_manager;
int r;
/*
*/
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
if (!BUS_IS_OPEN(bus->state))
return -ENOTCONN;
+ r = bus_find_parent_object_manager(bus, &object_manager, path);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ESRCH;
+
do {
bus->nodes_modified = false;
m = sd_bus_message_unref(m);
- r = sd_bus_message_new_signal(bus, &m, path, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded");
+ r = sd_bus_message_new_signal(bus, &m, object_manager->path, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded");
if (r < 0)
return r;
return 0;
LIST_FOREACH(vtables, c, n->vtables) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
void *u = NULL;
if (require_fallback && !c->is_fallback)
return 0;
}
-int sd_bus_emit_object_removed(sd_bus *bus, const char *path) {
+_public_ int sd_bus_emit_object_removed(sd_bus *bus, const char *path) {
BUS_DONT_DESTROY(bus);
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
+ struct node *object_manager;
int r;
/*
*/
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
if (!BUS_IS_OPEN(bus->state))
return -ENOTCONN;
+ r = bus_find_parent_object_manager(bus, &object_manager, path);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ESRCH;
+
do {
bus->nodes_modified = false;
m = sd_bus_message_unref(m);
- r = sd_bus_message_new_signal(bus, &m, path, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved");
+ r = sd_bus_message_new_signal(bus, &m, object_manager->path, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved");
if (r < 0)
return r;
const char *interface,
bool require_fallback) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
bool found_interface = false;
struct node_vtable *c;
struct node *n;
_public_ int sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, char **interfaces) {
BUS_DONT_DESTROY(bus);
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
+ struct node *object_manager;
char **i;
int r;
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
if (strv_isempty(interfaces))
return 0;
+ r = bus_find_parent_object_manager(bus, &object_manager, path);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ESRCH;
+
do {
bus->nodes_modified = false;
m = sd_bus_message_unref(m);
- r = sd_bus_message_new_signal(bus, &m, path, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded");
+ r = sd_bus_message_new_signal(bus, &m, object_manager->path, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded");
if (r < 0)
return r;
char **interfaces;
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
}
_public_ int sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path, char **interfaces) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
+ struct node *object_manager;
int r;
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
if (strv_isempty(interfaces))
return 0;
- r = sd_bus_message_new_signal(bus, &m, path, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved");
+ r = bus_find_parent_object_manager(bus, &object_manager, path);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ESRCH;
+
+ r = sd_bus_message_new_signal(bus, &m, object_manager->path, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved");
if (r < 0)
return r;
char **interfaces;
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
int r;
assert_return(bus, -EINVAL);
+ assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(object_path_is_valid(path), -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
~ianmdlvl / elogind.git / blobdiff