assert(p);
assert(sz > 0);
+ *d = ALIGN8_PTR(*d);
+
(*d)->size = offsetof(struct kdbus_msg_data, vec) + sizeof(struct kdbus_vec);
(*d)->type = KDBUS_MSG_PAYLOAD_VEC;
(*d)->vec.address = (uint64_t) p;
(*d)->vec.size = sz;
- *d = (struct kdbus_msg_data*) ((uint8_t*) *d + ALIGN8((*d)->size));
+ *d = (struct kdbus_msg_data*) ((uint8_t*) *d + (*d)->size);
}
static void append_destination(struct kdbus_msg_data **d, const char *s, size_t length) {
assert(d);
- assert(d);
+ assert(s);
+
+ *d = ALIGN8_PTR(*d);
(*d)->size = offsetof(struct kdbus_msg_data, str) + length + 1;
(*d)->type = KDBUS_MSG_DST_NAME;
memcpy((*d)->str, s, length + 1);
- *d = (struct kdbus_msg_data*) ((uint8_t*) *d + ALIGN8((*d)->size));
+ *d = (struct kdbus_msg_data*) ((uint8_t*) *d + (*d)->size);
}
-static int bus_message_setup_kmsg(sd_bus_message *m) {
+static void append_bloom(struct kdbus_msg_data **d, const void *p, size_t length) {
+ assert(d);
+ assert(p);
+
+ *d = ALIGN8_PTR(*d);
+
+ (*d)->size = offsetof(struct kdbus_msg_data, data) + length;
+ (*d)->type = KDBUS_MSG_BLOOM;
+ memcpy((*d)->data, p, length);
+
+ *d = (struct kdbus_msg_data*) ((uint8_t*) *d + (*d)->size);
+}
+
+static int bus_message_setup_kmsg(sd_bus *b, sd_bus_message *m) {
struct kdbus_msg_data *d;
bool well_known;
uint64_t unique;
size_t sz, dl;
int r;
+ assert(b);
assert(m);
assert(m->sealed);
/* Add in fixed header, fields header, fields header padding and payload */
sz += 4 * ALIGN8(offsetof(struct kdbus_msg_data, vec) + sizeof(struct kdbus_vec));
+ sz += ALIGN8(offsetof(struct kdbus_msg_data, data) + b->bloom_size);
+
/* Add in well-known destination header */
if (well_known) {
dl = strlen(m->destination);
if (!m->kdbus)
return -ENOMEM;
+ memset(m->kdbus, 0, sz);
+
m->kdbus->flags =
((m->header->flags & SD_BUS_MESSAGE_NO_REPLY_EXPECTED) ? 0 : KDBUS_MSG_FLAGS_EXPECT_REPLY) |
((m->header->flags & SD_BUS_MESSAGE_NO_AUTO_START) ? KDBUS_MSG_FLAGS_NO_AUTO_START : 0);
m->kdbus->dst_id =
well_known ? 0 :
- m->destination ? unique : (uint64_t) -1;
+ m->destination ? unique : KDBUS_DST_ID_BROADCAST;
m->kdbus->payload_type = KDBUS_PAYLOAD_DBUS1;
m->kdbus->cookie = m->header->serial;
if (m->body)
append_payload_vec(&d, m->body, m->header->body_size);
+ if (m->kdbus->dst_id == KDBUS_DST_ID_BROADCAST) {
+ void *p;
+
+ /* For now, let's add a mask all bloom filter */
+ p = alloca(b->bloom_size);
+ memset(p, 0xFF, b->bloom_size);
+ append_bloom(&d, p, b->bloom_size);
+ }
+
m->kdbus->size = (uint8_t*) d - (uint8_t*) m->kdbus;
assert(m->kdbus->size <= sz);
if (r < 0)
return -errno;
+ /* The higher 32bit of both flags fields are considered
+ * 'incompatible flags'. Refuse them all for now. */
+ if (hello.bus_flags > 0xFFFFFFFFULL ||
+ hello.conn_flags > 0xFFFFFFFFULL)
+ return -ENOTSUP;
+
if (asprintf(&b->unique_name, ":1.%llu", (unsigned long long) hello.id) < 0)
return -ENOMEM;
+ b->bloom_size = hello.bloom_size;
b->is_kernel = true;
b->bus_client = true;
assert(m);
assert(bus->state == BUS_RUNNING);
- r = bus_message_setup_kmsg(m);
+ r = bus_message_setup_kmsg(bus, m);
if (r < 0)
return r;
}
int bus_kernel_create(const char *name, char **s) {
- struct kdbus_cmd_fname *fname;
+ struct kdbus_cmd_bus_make *make;
size_t l;
int fd;
char *p;
return -errno;
l = strlen(name);
- fname = alloca(offsetof(struct kdbus_cmd_fname, name) + DECIMAL_STR_MAX(uid_t) + 1 + l + 1);
- sprintf(fname->name, "%lu-%s", (unsigned long) getuid(), name);
- fname->size = offsetof(struct kdbus_cmd_fname, name) + strlen(fname->name) + 1;
- fname->kernel_flags = KDBUS_CMD_FNAME_ACCESS_WORLD | KDBUS_CMD_FNAME_POLICY_OPEN;
- fname->user_flags = 0;
-
- p = strjoin("/dev/kdbus/", fname->name, "/bus", NULL);
+ make = alloca(offsetof(struct kdbus_cmd_bus_make, name) + DECIMAL_STR_MAX(uid_t) + 1 + l + 1);
+ sprintf(make->name, "%lu-%s", (unsigned long) getuid(), name);
+ make->size = offsetof(struct kdbus_cmd_bus_make, name) + strlen(make->name) + 1;
+ make->flags = KDBUS_ACCESS_WORLD | KDBUS_POLICY_OPEN;
+ make->bus_flags = 0;
+ make->bloom_size = 16;
+
+ p = strjoin("/dev/kdbus/", make->name, "/bus", NULL);
if (!p)
return -ENOMEM;
- if (ioctl(fd, KDBUS_CMD_BUS_MAKE, fname) < 0) {
+ if (ioctl(fd, KDBUS_CMD_BUS_MAKE, make) < 0) {
close_nointr_nofail(fd);
free(p);
return -errno;