diff options
Diffstat (limited to 'src/libsystemd-network/sd-dhcp6-client.c')
| -rw-r--r-- | src/libsystemd-network/sd-dhcp6-client.c | 59 |
1 files changed, 39 insertions, 20 deletions
diff --git a/src/libsystemd-network/sd-dhcp6-client.c b/src/libsystemd-network/sd-dhcp6-client.c index 65679b7301..1a59cc2861 100644 --- a/src/libsystemd-network/sd-dhcp6-client.c +++ b/src/libsystemd-network/sd-dhcp6-client.c @@ -95,6 +95,8 @@ const char * dhcp6_message_status_table[_DHCP6_STATUS_MAX] = { 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) { @@ -161,7 +163,7 @@ static int client_initialize(sd_dhcp6_client *client) 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); @@ -609,36 +611,53 @@ static int client_receive_message(sd_event_source *s, int fd, uint32_t revents, 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, @@ -673,7 +692,7 @@ int sd_dhcp6_client_start(sd_dhcp6_client *client) 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, |