uint32_t t1;
uint32_t t2;
uint32_t lifetime;
- uint32_t address;
- uint32_t server_address;
- uint32_t subnet_mask;
- uint32_t router;
+ be32_t address;
+ be32_t server_address;
+ be32_t subnet_mask;
+ be32_t router;
};
typedef struct DHCPLease DHCPLease;
sd_event_source *receive_message;
uint8_t *req_opts;
size_t req_opts_size;
- uint32_t last_addr;
+ be32_t last_addr;
struct ether_addr mac_addr;
uint32_t xid;
usec_t start_time;
sd_event_source *timeout_t1;
sd_event_source *timeout_t2;
sd_event_source *timeout_expire;
+ sd_dhcp_client_cb_t cb;
+ void *userdata;
DHCPLease *lease;
};
DHCP_OPTION_NTP_SERVER,
};
+int sd_dhcp_client_set_callback(sd_dhcp_client *client, sd_dhcp_client_cb_t cb,
+ void *userdata)
+{
+ assert_return(client, -EINVAL);
+
+ client->cb = cb;
+ client->userdata = userdata;
+
+ return 0;
+}
+
int sd_dhcp_client_set_request_option(sd_dhcp_client *client, uint8_t option)
{
size_t i;
return 0;
}
+int sd_dhcp_client_get_address(sd_dhcp_client *client, struct in_addr *addr)
+{
+ assert_return(client, -EINVAL);
+ assert_return(addr, -EINVAL);
+
+ switch (client->state) {
+ case DHCP_STATE_INIT:
+ case DHCP_STATE_SELECTING:
+ case DHCP_STATE_INIT_REBOOT:
+ case DHCP_STATE_REBOOTING:
+ case DHCP_STATE_REQUESTING:
+ return -EADDRNOTAVAIL;
+
+ case DHCP_STATE_BOUND:
+ case DHCP_STATE_RENEWING:
+ case DHCP_STATE_REBINDING:
+ addr->s_addr = client->lease->address;
+
+ break;
+ }
+
+ return 0;
+}
+
+int sd_dhcp_client_get_netmask(sd_dhcp_client *client, struct in_addr *addr)
+{
+ assert_return(client, -EINVAL);
+ assert_return(addr, -EINVAL);
+
+ switch (client->state) {
+ case DHCP_STATE_INIT:
+ case DHCP_STATE_SELECTING:
+ case DHCP_STATE_INIT_REBOOT:
+ case DHCP_STATE_REBOOTING:
+ case DHCP_STATE_REQUESTING:
+ return -EADDRNOTAVAIL;
+
+ case DHCP_STATE_BOUND:
+ case DHCP_STATE_RENEWING:
+ case DHCP_STATE_REBINDING:
+ addr->s_addr = client->lease->subnet_mask;
+
+ break;
+ }
+
+ return 0;
+}
+
+int sd_dhcp_client_prefixlen(const struct in_addr *addr)
+{
+ int len = 0;
+ uint32_t mask;
+
+ assert_return(addr, -EADDRNOTAVAIL);
+
+ mask = be32toh(addr->s_addr);
+ while (mask) {
+ len++;
+ mask = mask << 1;
+ }
+
+ return len;
+}
+
+int sd_dhcp_client_get_router(sd_dhcp_client *client, struct in_addr *addr)
+{
+ assert_return(client, -EINVAL);
+ assert_return(addr, -EINVAL);
+
+ switch (client->state) {
+ case DHCP_STATE_INIT:
+ case DHCP_STATE_SELECTING:
+ case DHCP_STATE_INIT_REBOOT:
+ case DHCP_STATE_REBOOTING:
+ case DHCP_STATE_REQUESTING:
+ return -EADDRNOTAVAIL;
+
+ case DHCP_STATE_BOUND:
+ case DHCP_STATE_RENEWING:
+ case DHCP_STATE_REBINDING:
+ addr->s_addr = client->lease->router;
+
+ break;
+ }
+
+ return 0;
+}
+
static int client_notify(sd_dhcp_client *client, int event)
{
+ if (client->cb)
+ client->cb(client, event, client->userdata);
+
return 0;
}
client->attempt = 1;
+ client_notify(client, error);
+
switch (client->state) {
case DHCP_STATE_INIT:
static int client_timeout_expire(sd_event_source *s, uint64_t usec,
void *userdata)
{
+ sd_dhcp_client *client = userdata;
+
+ client_stop(client, DHCP_EVENT_EXPIRED);
+
return 0;
}
client->receive_message =
sd_event_source_unref(client->receive_message);
}
+
+ r = 0;
+
break;
case DHCP_STATE_INIT:
}
error:
- if (r < 0)
+ if (r < 0 || r == DHCP_EVENT_NO_LEASE)
return client_stop(client, r);
return 0;
int sd_dhcp_client_stop(sd_dhcp_client *client)
{
- return client_stop(client, 0);
+ return client_stop(client, DHCP_EVENT_STOP);
+}
+
+sd_dhcp_client *sd_dhcp_client_free(sd_dhcp_client *client)
+{
+ assert_return(client, NULL);
+
+ sd_dhcp_client_stop(client);
+
+ sd_event_unref(client->event);
+ free(client->req_opts);
+ free(client);
+
+ return NULL;
}
sd_dhcp_client *sd_dhcp_client_new(sd_event *event)