assert(bus);
assert(name);
- l = strlen(name);
- size = offsetof(struct kdbus_cmd_name, name) + l + 1;
- n = alloca0(size);
+ l = strlen(name) + 1;
+ size = offsetof(struct kdbus_cmd_name, items) + KDBUS_ITEM_SIZE(l);
+ n = alloca0_align(size, 8);
n->size = size;
kdbus_translate_request_name_flags(flags, (uint64_t *) &n->flags);
- memcpy(n->name, name, l+1);
+
+ n->items[0].size = KDBUS_ITEM_HEADER_SIZE + l;
+ n->items[0].type = KDBUS_ITEM_NAME;
+ memcpy(n->items[0].str, name, l);
#ifdef HAVE_VALGRIND_MEMCHECK_H
VALGRIND_MAKE_MEM_DEFINED(n, n->size);
assert_return(bus, -EINVAL);
assert_return(name, -EINVAL);
assert_return(bus->bus_client, -EINVAL);
- assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
assert_return(!bus_pid_changed(bus), -ECHILD);
assert_return(!(flags & ~(SD_BUS_NAME_ALLOW_REPLACEMENT|SD_BUS_NAME_REPLACE_EXISTING|SD_BUS_NAME_QUEUE)), -EINVAL);
assert_return(service_name_is_valid(name), -EINVAL);
assert_return(name[0] != ':', -EINVAL);
+ if (!BUS_IS_OPEN(bus->state))
+ return -ENOTCONN;
+
if (bus->is_kernel)
return bus_request_name_kernel(bus, name, flags);
else
static int bus_release_name_kernel(sd_bus *bus, const char *name) {
struct kdbus_cmd_name *n;
- size_t l;
+ size_t size, l;
int r;
assert(bus);
assert(name);
- l = strlen(name);
- n = alloca0(offsetof(struct kdbus_cmd_name, name) + l + 1);
- n->size = offsetof(struct kdbus_cmd_name, name) + l + 1;
- memcpy(n->name, name, l+1);
+ l = strlen(name) + 1;
+ size = offsetof(struct kdbus_cmd_name, items) + KDBUS_ITEM_SIZE(l);
+ n = alloca0_align(size, 8);
+ n->size = size;
+
+ n->items[0].size = KDBUS_ITEM_HEADER_SIZE + l;
+ n->items[0].type = KDBUS_ITEM_NAME;
+ memcpy(n->items[0].str, name, l);
#ifdef HAVE_VALGRIND_MEMCHECK_H
VALGRIND_MAKE_MEM_DEFINED(n, n->size);
if (r < 0)
return -errno;
- return n->flags;
+ return 0;
}
static int bus_release_name_dbus1(sd_bus *bus, const char *name) {
assert_return(bus, -EINVAL);
assert_return(name, -EINVAL);
assert_return(bus->bus_client, -EINVAL);
- assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
assert_return(!bus_pid_changed(bus), -ECHILD);
assert_return(service_name_is_valid(name), -EINVAL);
assert_return(name[0] != ':', -EINVAL);
+ if (!BUS_IS_OPEN(bus->state))
+ return -ENOTCONN;
+
if (bus->is_kernel)
return bus_release_name_kernel(bus, name);
else
return bus_release_name_dbus1(bus, name);
}
+static int kernel_cmd_free(sd_bus *bus, uint64_t offset)
+{
+ struct kdbus_cmd_free cmd;
+ int r;
+
+ assert(bus);
+
+ cmd.flags = 0;
+ cmd.offset = offset;
+
+ r = ioctl(bus->input_fd, KDBUS_CMD_FREE, &cmd);
+ if (r < 0)
+ return -errno;
+
+ return 0;
+}
+
static int kernel_get_list(sd_bus *bus, uint64_t flags, char ***x) {
struct kdbus_cmd_name_list cmd = {};
struct kdbus_name_list *name_list;
- struct kdbus_cmd_name *name;
+ struct kdbus_name_info *name;
uint64_t previous_id = 0;
int r;
KDBUS_ITEM_FOREACH(name, name_list, names) {
+ struct kdbus_item *item;
+ const char *entry_name = NULL;
+
if ((flags & KDBUS_NAME_LIST_UNIQUE) && name->owner_id != previous_id) {
char *n;
- if (asprintf(&n, ":1.%llu", (unsigned long long) name->owner_id) < 0)
- return -ENOMEM;
-
- r = strv_push(x, n);
- if (r < 0) {
- free(n);
- return -ENOMEM;
+ if (asprintf(&n, ":1.%llu", (unsigned long long) name->owner_id) < 0) {
+ r = -ENOMEM;
+ goto fail;
}
+ r = strv_consume(x, n);
+ if (r < 0)
+ goto fail;
+
previous_id = name->owner_id;
}
- if (name->size > sizeof(*name) && service_name_is_valid(name->name)) {
- r = strv_extend(x, name->name);
- if (r < 0)
- return -ENOMEM;
+ KDBUS_ITEM_FOREACH(item, name, items)
+ if (item->type == KDBUS_ITEM_NAME)
+ entry_name = item->str;
+
+ if (entry_name && service_name_is_valid(entry_name)) {
+ r = strv_extend(x, entry_name);
+ if (r < 0) {
+ r = -ENOMEM;
+ goto fail;
+ }
}
}
- r = ioctl(bus->input_fd, KDBUS_CMD_FREE, &cmd.offset);
- if (r < 0)
- return -errno;
+ r = 0;
- return 0;
+fail:
+ kernel_cmd_free(bus, cmd.offset);
+ return r;
}
static int bus_list_names_kernel(sd_bus *bus, char ***acquired, char ***activatable) {
_public_ int sd_bus_list_names(sd_bus *bus, char ***acquired, char ***activatable) {
assert_return(bus, -EINVAL);
assert_return(acquired || activatable, -EINVAL);
- assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
assert_return(!bus_pid_changed(bus), -ECHILD);
+ if (!BUS_IS_OPEN(bus->state))
+ return -ENOTCONN;
+
if (bus->is_kernel)
return bus_list_names_kernel(bus, acquired, activatable);
else
sd_bus_creds **creds) {
_cleanup_bus_creds_unref_ sd_bus_creds *c = NULL;
- struct kdbus_cmd_conn_info *cmd;
- struct kdbus_conn_info *conn_info;
+ struct kdbus_cmd_info *cmd;
+ struct kdbus_info *conn_info;
struct kdbus_item *item;
- size_t size;
+ size_t size, l;
uint64_t m, id;
int r;
if (r < 0)
return r;
if (r > 0) {
- size = offsetof(struct kdbus_cmd_conn_info, name);
- cmd = alloca0(size);
+ size = offsetof(struct kdbus_cmd_info, items);
+ cmd = alloca0_align(size, 8);
cmd->id = id;
} else {
- size = offsetof(struct kdbus_cmd_conn_info, name) + strlen(name) + 1;
- cmd = alloca0(size);
- strcpy(cmd->name, name);
+ l = strlen(name) + 1;
+ size = offsetof(struct kdbus_cmd_info, items) + KDBUS_ITEM_SIZE(l);
+ cmd = alloca0_align(size, 8);
+ cmd->items[0].size = KDBUS_ITEM_HEADER_SIZE + l;
+ cmd->items[0].type = KDBUS_ITEM_NAME;
+ memcpy(cmd->items[0].str, name, l);
}
cmd->size = size;
if (r < 0)
return -errno;
- conn_info = (struct kdbus_conn_info *) ((uint8_t *) bus->kdbus_buffer + cmd->offset);
+ conn_info = (struct kdbus_info *) ((uint8_t *) bus->kdbus_buffer + cmd->offset);
/* Non-activated names are considered not available */
- if (conn_info->flags & KDBUS_HELLO_ACTIVATOR)
- return name[0] == ':' ? -ENXIO : -ENOENT;
+ if (conn_info->flags & KDBUS_HELLO_ACTIVATOR) {
+ if (name[0] == ':')
+ r = -ENXIO;
+ else
+ r = -ESRCH;
+ goto fail;
+ }
c = bus_creds_new();
- if (!c)
- return -ENOMEM;
+ if (!c) {
+ r = -ENOMEM;
+ goto fail;
+ }
if (mask & SD_BUS_CREDS_UNIQUE_NAME) {
- if (asprintf(&c->unique_name, ":1.%llu", (unsigned long long) conn_info->id) < 0)
- return -ENOMEM;
+ if (asprintf(&c->unique_name, ":1.%llu", (unsigned long long) conn_info->id) < 0) {
+ r = -ENOMEM;
+ goto fail;
+ }
c->mask |= SD_BUS_CREDS_UNIQUE_NAME;
}
goto fail;
}
- if (!bus->cgroup_root) {
- r = cg_get_root_path(&bus->cgroup_root);
- if (r < 0)
- goto fail;
- }
+ r = bus_get_root_path(bus);
+ if (r < 0)
+ goto fail;
c->cgroup_root = strdup(bus->cgroup_root);
if (!c->cgroup_root) {
r = 0;
fail:
- ioctl(bus->input_fd, KDBUS_CMD_FREE, &cmd->offset);
+ kernel_cmd_free(bus, cmd->offset);
return r;
}
}
if (mask & SD_BUS_CREDS_SELINUX_CONTEXT) {
- const void *p;
- size_t sz;
+ const void *p = NULL;
+ size_t sz = 0;
r = sd_bus_call_method(
bus,
assert_return(name, -EINVAL);
assert_return(mask <= _SD_BUS_CREDS_ALL, -ENOTSUP);
assert_return(mask == 0 || creds, -EINVAL);
- assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
assert_return(!bus_pid_changed(bus), -ECHILD);
assert_return(service_name_is_valid(name), -EINVAL);
assert_return(bus->bus_client, -ENODATA);
+ if (!BUS_IS_OPEN(bus->state))
+ return -ENOTCONN;
+
if (bus->is_kernel)
return bus_get_owner_kdbus(bus, name, mask, creds);
else
offsetof(struct kdbus_notify_name_change, name) +
l);
- m = alloca0(sz);
+ m = alloca0_align(sz, 8);
m->size = sz;
m->cookie = cookie;
offsetof(struct kdbus_notify_name_change, name) +
l;
- item->name_change.old.id = old_owner_id;
- item->name_change.new.id = new_owner_id;
+ item->name_change.old_id.id = old_owner_id;
+ item->name_change.new_id.id = new_owner_id;
if (name)
memcpy(item->name_change.name, name, l);
offsetof(struct kdbus_item, id_change) +
sizeof(struct kdbus_notify_id_change));
- m = alloca0(sz);
+ m = alloca0_align(sz, 8);
m->size = sz;
m->cookie = cookie;
int bus_add_match_internal_kernel(
sd_bus *bus,
- uint64_t id,
struct bus_match_component *components,
unsigned n_components,
uint64_t cookie) {
struct kdbus_cmd_match *m;
struct kdbus_item *item;
- uint64_t bloom[BLOOM_SIZE/8];
+ uint64_t *bloom;
size_t sz;
const char *sender = NULL;
size_t sender_length = 0;
assert(bus);
- zero(bloom);
+ bloom = alloca0(bus->bloom_size);
sz = ALIGN8(offsetof(struct kdbus_cmd_match, items));
if (c->value_u8 != SD_BUS_MESSAGE_SIGNAL)
matches_name_change = false;
- bloom_add_pair(bloom, "message-type", bus_message_type_to_string(c->value_u8));
+ bloom_add_pair(bloom, bus->bloom_size, bus->bloom_n_hash, "message-type", bus_message_type_to_string(c->value_u8));
using_bloom = true;
break;
if (!streq(c->value_str, "org.freedesktop.DBus"))
matches_name_change = false;
- bloom_add_pair(bloom, "interface", c->value_str);
+ bloom_add_pair(bloom, bus->bloom_size, bus->bloom_n_hash, "interface", c->value_str);
using_bloom = true;
break;
if (!streq(c->value_str, "NameOwnerChanged"))
matches_name_change = false;
- bloom_add_pair(bloom, "member", c->value_str);
+ bloom_add_pair(bloom, bus->bloom_size, bus->bloom_n_hash, "member", c->value_str);
using_bloom = true;
break;
if (!streq(c->value_str, "/org/freedesktop/DBus"))
matches_name_change = false;
- bloom_add_pair(bloom, "path", c->value_str);
+ bloom_add_pair(bloom, bus->bloom_size, bus->bloom_n_hash, "path", c->value_str);
using_bloom = true;
break;
case BUS_MATCH_PATH_NAMESPACE:
if (!streq(c->value_str, "/")) {
- bloom_add_pair(bloom, "path-slash-prefix", c->value_str);
+ bloom_add_pair(bloom, bus->bloom_size, bus->bloom_n_hash, "path-slash-prefix", c->value_str);
using_bloom = true;
}
break;
name_change_arg[c->type - BUS_MATCH_ARG] = c->value_str;
snprintf(buf, sizeof(buf), "arg%u", c->type - BUS_MATCH_ARG);
- bloom_add_pair(bloom, buf, c->value_str);
+ bloom_add_pair(bloom, bus->bloom_size, bus->bloom_n_hash, buf, c->value_str);
using_bloom = true;
break;
}
char buf[sizeof("arg")-1 + 2 + sizeof("-slash-prefix")];
snprintf(buf, sizeof(buf), "arg%u-slash-prefix", c->type - BUS_MATCH_ARG_PATH);
- bloom_add_pair(bloom, buf, c->value_str);
+ bloom_add_pair(bloom, bus->bloom_size, bus->bloom_n_hash, buf, c->value_str);
using_bloom = true;
break;
}
char buf[sizeof("arg")-1 + 2 + sizeof("-dot-prefix")];
snprintf(buf, sizeof(buf), "arg%u-dot-prefix", c->type - BUS_MATCH_ARG_NAMESPACE);
- bloom_add_pair(bloom, buf, c->value_str);
+ bloom_add_pair(bloom, bus->bloom_size, bus->bloom_n_hash, buf, c->value_str);
using_bloom = true;
break;
}
}
if (using_bloom)
- sz += ALIGN8(offsetof(struct kdbus_item, data64) + BLOOM_SIZE);
+ sz += ALIGN8(offsetof(struct kdbus_item, data64) + bus->bloom_size);
- m = alloca0(sz);
+ m = alloca0_align(sz, 8);
m->size = sz;
m->cookie = cookie;
- m->owner_id = id;
item = m->items;
}
if (using_bloom) {
- item->size = offsetof(struct kdbus_item, data64) + BLOOM_SIZE;
+ item->size = offsetof(struct kdbus_item, data64) + bus->bloom_size;
item->type = KDBUS_ITEM_BLOOM_MASK;
- memcpy(item->data64, bloom, BLOOM_SIZE);
+ memcpy(item->data64, bloom, bus->bloom_size);
item = KDBUS_ITEM_NEXT(item);
}
return 0;
}
+#define internal_match(bus, m) \
+ ((bus)->hello_flags & KDBUS_HELLO_MONITOR \
+ ? (isempty(m) ? "eavesdrop='true'" : strappenda((m), ",eavesdrop='true'")) \
+ : (m))
+
static int bus_add_match_internal_dbus1(
sd_bus *bus,
const char *match) {
+ const char *e;
+
assert(bus);
assert(match);
+ e = internal_match(bus, match);
+
return sd_bus_call_method(
bus,
"org.freedesktop.DBus",
NULL,
NULL,
"s",
- match);
+ e);
}
int bus_add_match_internal(
uint64_t cookie) {
assert(bus);
- assert(match);
if (bus->is_kernel)
- return bus_add_match_internal_kernel(bus, 0, components, n_components, cookie);
+ return bus_add_match_internal_kernel(bus, components, n_components, cookie);
else
return bus_add_match_internal_dbus1(bus, match);
}
int bus_remove_match_internal_kernel(
sd_bus *bus,
- uint64_t id,
uint64_t cookie) {
struct kdbus_cmd_match m;
zero(m);
m.size = offsetof(struct kdbus_cmd_match, items);
m.cookie = cookie;
- m.owner_id = id;
r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_REMOVE, &m);
if (r < 0)
sd_bus *bus,
const char *match) {
+ const char *e;
+
assert(bus);
assert(match);
+ e = internal_match(bus, match);
+
return sd_bus_call_method(
bus,
"org.freedesktop.DBus",
NULL,
NULL,
"s",
- match);
+ e);
}
int bus_remove_match_internal(
uint64_t cookie) {
assert(bus);
- assert(match);
if (bus->is_kernel)
- return bus_remove_match_internal_kernel(bus, 0, cookie);
+ return bus_remove_match_internal_kernel(bus, cookie);
else
return bus_remove_match_internal_dbus1(bus, match);
}
assert_return(bus, -EINVAL);
assert_return(name, -EINVAL);
assert_return(machine, -EINVAL);
- assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
assert_return(!bus_pid_changed(bus), -ECHILD);
assert_return(service_name_is_valid(name), -EINVAL);
+ if (!BUS_IS_OPEN(bus->state))
+ return -ENOTCONN;
+
if (streq_ptr(name, bus->unique_name))
return sd_id128_get_machine(machine);
r = sd_bus_message_new_method_call(
bus,
+ &m,
name,
"/",
"org.freedesktop.DBus.Peer",
- "GetMachineId", &m);
+ "GetMachineId");
if (r < 0)
return r;