if (asprintf(&b->unique_name, ":1.%llu", (unsigned long long) hello.id) < 0)
return -ENOMEM;
+ b->unique_id = hello.id;
+
b->is_kernel = true;
b->bus_client = true;
b->can_fds = !!(hello.conn_flags & KDBUS_HELLO_ACCEPT_FD);
/* the kernel told us the UUID of the underlying bus */
memcpy(b->server_id.bytes, hello.id128, sizeof(b->server_id.bytes));
- r = bus_start_running(b);
- if (r < 0)
- return r;
-
- return 1;
+ return bus_start_running(b);
}
int bus_kernel_connect(sd_bus *b) {
assert(m);
assert(bus->state == BUS_RUNNING);
+ /* If we can't deliver, we want room for the error message */
+ r = bus_rqueue_make_room(bus);
+ if (r < 0)
+ return r;
+
r = bus_message_setup_kmsg(bus, m);
if (r < 0)
return r;
r = ioctl(bus->output_fd, KDBUS_CMD_MSG_SEND, m->kdbus);
- if (r < 0)
- return errno == EAGAIN ? 0 : -errno;
+ if (r < 0) {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ sd_bus_message *reply;
+
+ if (errno == EAGAIN || errno == EINTR)
+ return 0;
+ else if (errno == ENXIO || errno == ESRCH) {
+
+ /* ENXIO: unique name not known
+ * ESRCH: well-known name not known */
+
+ if (m->header->type == SD_BUS_MESSAGE_METHOD_CALL)
+ sd_bus_error_setf(&error, SD_BUS_ERROR_SERVICE_UNKNOWN, "Destination %s not known", m->destination);
+ else
+ return 0;
+
+ } else if (errno == EADDRNOTAVAIL) {
+
+ /* EADDRNOTAVAIL: activation is possible, but turned off in request flags */
+
+ if (m->header->type == SD_BUS_MESSAGE_METHOD_CALL)
+ sd_bus_error_setf(&error, SD_BUS_ERROR_SERVICE_UNKNOWN, "Activation of %s not requested", m->destination);
+ else
+ return 0;
+ } else
+ return -errno;
+
+ r = bus_message_new_synthetic_error(
+ bus,
+ BUS_MESSAGE_SERIAL(m),
+ &error,
+ &reply);
+
+ if (r < 0)
+ return r;
+
+ r = bus_seal_synthetic_message(bus, reply);
+ if (r < 0)
+ return r;
+
+ bus->rqueue[bus->rqueue_size++] = reply;
+
+ return 0;
+ }
return 1;
}
}
}
-static int return_name_owner_changed(sd_bus *bus, const char *name, const char *old_owner, const char *new_owner, sd_bus_message **ret) {
+static int push_name_owner_changed(sd_bus *bus, const char *name, const char *old_owner, const char *new_owner) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
int r;
assert(bus);
- assert(ret);
r = sd_bus_message_new_signal(
bus,
m->sender = "org.freedesktop.DBus";
- r = bus_seal_message(bus, m);
+ r = bus_seal_synthetic_message(bus, m);
if (r < 0)
return r;
- *ret = m;
+ bus->rqueue[bus->rqueue_size++] = m;
m = NULL;
return 1;
}
-static int translate_name_change(sd_bus *bus, struct kdbus_msg *k, struct kdbus_item *d, sd_bus_message **ret) {
+static int translate_name_change(sd_bus *bus, struct kdbus_msg *k, struct kdbus_item *d) {
char new_owner[UNIQUE_NAME_MAX], old_owner[UNIQUE_NAME_MAX];
assert(bus);
assert(k);
assert(d);
- assert(ret);
if (d->name_change.flags != 0)
return 0;
else
sprintf(new_owner, ":1.%llu", (unsigned long long) d->name_change.new_id);
- return return_name_owner_changed(bus, d->name_change.name, old_owner, new_owner, ret);
+ return push_name_owner_changed(bus, d->name_change.name, old_owner, new_owner);
}
-static int translate_id_change(sd_bus *bus, struct kdbus_msg *k, struct kdbus_item *d, sd_bus_message **ret) {
+static int translate_id_change(sd_bus *bus, struct kdbus_msg *k, struct kdbus_item *d) {
char owner[UNIQUE_NAME_MAX];
assert(bus);
assert(k);
assert(d);
- assert(ret);
sprintf(owner, ":1.%llu", d->id_change.id);
- return return_name_owner_changed(
+ return push_name_owner_changed(
bus, owner,
d->type == KDBUS_ITEM_ID_ADD ? NULL : owner,
- d->type == KDBUS_ITEM_ID_ADD ? owner : NULL,
- ret);
+ d->type == KDBUS_ITEM_ID_ADD ? owner : NULL);
}
-static int translate_reply(sd_bus *bus, struct kdbus_msg *k, struct kdbus_item *d, sd_bus_message **ret) {
+static int translate_reply(sd_bus *bus, struct kdbus_msg *k, struct kdbus_item *d) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
int r;
assert(bus);
assert(k);
assert(d);
- assert(ret);
r = bus_message_new_synthetic_error(
bus,
m->sender = "org.freedesktop.DBus";
- r = bus_seal_message(bus, m);
+ r = bus_seal_synthetic_message(bus, m);
if (r < 0)
return r;
- *ret = m;
+ bus->rqueue[bus->rqueue_size++] = m;
m = NULL;
return 1;
}
-static int bus_kernel_translate_message(sd_bus *bus, struct kdbus_msg *k, sd_bus_message **ret) {
+static int bus_kernel_translate_message(sd_bus *bus, struct kdbus_msg *k) {
struct kdbus_item *d, *found = NULL;
- static int (* const translate[])(sd_bus *bus, struct kdbus_msg *k, struct kdbus_item *d, sd_bus_message **ret) = {
+ static int (* const translate[])(sd_bus *bus, struct kdbus_msg *k, struct kdbus_item *d) = {
[KDBUS_ITEM_NAME_ADD - _KDBUS_ITEM_KERNEL_BASE] = translate_name_change,
[KDBUS_ITEM_NAME_REMOVE - _KDBUS_ITEM_KERNEL_BASE] = translate_name_change,
[KDBUS_ITEM_NAME_CHANGE - _KDBUS_ITEM_KERNEL_BASE] = translate_name_change,
assert(bus);
assert(k);
- assert(ret);
assert(k->payload_type == KDBUS_PAYLOAD_KERNEL);
KDBUS_PART_FOREACH(d, k, items) {
return 0;
}
- return translate[found->type](bus, k, d, ret);
+ return translate[found->type - _KDBUS_ITEM_KERNEL_BASE](bus, k, found);
+}
+
+int kdbus_translate_attach_flags(uint64_t mask, uint64_t *kdbus_mask) {
+
+ uint64_t m = 0;
+
+ SET_FLAG(m, KDBUS_ATTACH_CREDS,
+ !!(mask & (SD_BUS_CREDS_UID|SD_BUS_CREDS_GID|SD_BUS_CREDS_PID|SD_BUS_CREDS_PID_STARTTIME|SD_BUS_CREDS_TID)));
+
+ SET_FLAG(m, KDBUS_ATTACH_COMM,
+ !!(mask & (SD_BUS_CREDS_COMM|SD_BUS_CREDS_TID_COMM)));
+
+ SET_FLAG(m, KDBUS_ATTACH_EXE,
+ !!(mask & SD_BUS_CREDS_EXE));
+
+ SET_FLAG(m, KDBUS_ATTACH_CMDLINE,
+ !!(mask & SD_BUS_CREDS_CMDLINE));
+
+ SET_FLAG(m, KDBUS_ATTACH_CGROUP,
+ !!(mask & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID)));
+
+ SET_FLAG(m, KDBUS_ATTACH_CAPS,
+ !!(mask & (SD_BUS_CREDS_EFFECTIVE_CAPS|SD_BUS_CREDS_PERMITTED_CAPS|SD_BUS_CREDS_INHERITABLE_CAPS|SD_BUS_CREDS_BOUNDING_CAPS)));
+
+ SET_FLAG(m, KDBUS_ATTACH_SECLABEL,
+ !!(mask & SD_BUS_CREDS_SELINUX_CONTEXT));
+
+ SET_FLAG(m, KDBUS_ATTACH_AUDIT,
+ !!(mask & (SD_BUS_CREDS_AUDIT_SESSION_ID|SD_BUS_CREDS_AUDIT_LOGIN_UID)));
+
+ *kdbus_mask = m;
+
+ return 0;
}
-static int bus_kernel_make_message(sd_bus *bus, struct kdbus_msg *k, sd_bus_message **ret) {
+static int bus_kernel_make_message(sd_bus *bus, struct kdbus_msg *k) {
sd_bus_message *m = NULL;
struct kdbus_item *d;
unsigned n_fds = 0;
assert(bus);
assert(k);
- assert(ret);
assert(k->payload_type == KDBUS_PAYLOAD_DBUS1);
KDBUS_PART_FOREACH(d, k, items) {
m->kdbus = k;
m->release_kdbus = true;
m->free_fds = true;
-
fds = NULL;
- *ret = m;
+ bus->rqueue[bus->rqueue_size++] = m;
+
return 1;
fail:
return r;
}
-int bus_kernel_read_message(sd_bus *bus, sd_bus_message **m) {
- uint64_t off;
+int bus_kernel_read_message(sd_bus *bus) {
struct kdbus_msg *k;
+ uint64_t off;
int r;
assert(bus);
- assert(m);
+
+ r = bus_rqueue_make_room(bus);
+ if (r < 0)
+ return r;
r = ioctl(bus->input_fd, KDBUS_CMD_MSG_RECV, &off);
if (r < 0) {
k = (struct kdbus_msg *)((uint8_t *)bus->kdbus_buffer + off);
if (k->payload_type == KDBUS_PAYLOAD_DBUS1)
- r = bus_kernel_make_message(bus, k, m);
+ r = bus_kernel_make_message(bus, k);
else if (k->payload_type == KDBUS_PAYLOAD_KERNEL)
- r = bus_kernel_translate_message(bus, k, m);
+ r = bus_kernel_translate_message(bus, k);
else
r = 0;
close_and_munmap(b->memfd_cache[i].fd, b->memfd_cache[i].address, b->memfd_cache[i].size);
}
-int sd_bus_kernel_translate_request_name_flags(uint64_t sd_bus_flags, uint64_t *kdbus_flags) {
+int kdbus_translate_request_name_flags(uint64_t sd_bus_flags, uint64_t *kdbus_flags) {
assert_return(kdbus_flags != NULL, -EINVAL);