DEFINE_STRING_TABLE_LOOKUP(dhcp6_message_status, int);
+static int client_start(sd_dhcp6_client *client, enum DHCP6State state);
+
int sd_dhcp6_client_set_callback(sd_dhcp6_client *client,
sd_dhcp6_client_cb_t cb, void *userdata)
{
if (client->fd > 0)
client->fd = safe_close(client->fd);
- client->transaction_id = random_u32() & 0x00ffffff;
+ client->transaction_id = 0;
client->ia_na.timeout_t1 =
sd_event_source_unref(client->ia_na.timeout_t1);
return 0;
}
-static int client_start(sd_dhcp6_client *client)
+static int client_start(sd_dhcp6_client *client, enum DHCP6State state)
{
int r;
assert_return(client, -EINVAL);
assert_return(client->event, -EINVAL);
assert_return(client->index > 0, -EINVAL);
+ assert_return(client->state != state, -EINVAL);
- r = client_ensure_iaid(client);
- if (r < 0)
- return r;
+ client->timeout_resend_expire =
+ sd_event_source_unref(client->timeout_resend_expire);
+ client->timeout_resend = sd_event_source_unref(client->timeout_resend);
+ client->retransmit_time = 0;
+ client->retransmit_count = 0;
- r = dhcp6_network_bind_udp_socket(client->index, NULL);
- if (r < 0)
- return r;
+ switch (state) {
+ case DHCP6_STATE_STOPPED:
+ case DHCP6_STATE_RS:
+ case DHCP6_STATE_SOLICITATION:
- client->fd = r;
+ r = client_ensure_iaid(client);
+ if (r < 0)
+ return r;
- r = sd_event_add_io(client->event, &client->receive_message,
- client->fd, EPOLLIN, client_receive_message,
- client);
- if (r < 0)
- return r;
+ r = dhcp6_network_bind_udp_socket(client->index, NULL);
+ if (r < 0)
+ return r;
- r = sd_event_source_set_priority(client->receive_message,
- client->event_priority);
- if (r < 0)
- return r;
+ client->fd = r;
+
+ r = sd_event_add_io(client->event, &client->receive_message,
+ client->fd, EPOLLIN, client_receive_message,
+ client);
+ if (r < 0)
+ return r;
+
+ r = sd_event_source_set_priority(client->receive_message,
+ client->event_priority);
+ if (r < 0)
+ return r;
+
+ client->state = DHCP6_STATE_SOLICITATION;
+
+ break;
+ }
- client->state = DHCP6_STATE_SOLICITATION;
+ client->transaction_id = random_u32() & htobe32(0x00ffffff);
r = sd_event_add_time(client->event, &client->timeout_resend,
CLOCK_MONOTONIC, 0, 0, client_timeout_resend,
if (r < 0)
return r;
- return client_start(client);
+ return client_start(client, DHCP6_STATE_SOLICITATION);
}
int sd_dhcp6_client_attach_event(sd_dhcp6_client *client, sd_event *event,