be32_t server_address;
be32_t subnet_mask;
be32_t router;
+ struct in_addr **dns;
};
typedef struct DHCPLease DHCPLease;
union sockaddr_union link;
sd_event_source *receive_message;
uint8_t *req_opts;
+ size_t req_opts_allocated;
size_t req_opts_size;
be32_t last_addr;
struct ether_addr mac_addr;
if (client->req_opts[i] == option)
return -EEXIST;
- if (!GREEDY_REALLOC(client->req_opts, client->req_opts_size,
+ if (!GREEDY_REALLOC(client->req_opts, client->req_opts_allocated,
client->req_opts_size + 1))
return -ENOMEM;
- client->req_opts[client->req_opts_size - 1] = option;
+ client->req_opts[client->req_opts_size++] = option;
return 0;
}
return 0;
}
+int sd_dhcp_client_get_dns(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:
+ if (client->lease->dns)
+ *addr = client->lease->dns;
+ else
+ return -ENOENT;
+
+ break;
+ }
+
+ return 0;
+}
+
int sd_dhcp_client_prefixlen(const struct in_addr *addr)
{
int len = 0;
return 0;
}
+static void in_addrs_free(struct in_addr **addrs) {
+ unsigned i;
+
+ if (!addrs)
+ return;
+
+ for (i = 0; addrs[i]; i++)
+ free(addrs[i]);
+
+ free(addrs);
+}
+
static int client_stop(sd_dhcp_client *client, int error)
{
assert_return(client, -EINVAL);
- assert_return(client->state != DHCP_STATE_INIT &&
- client->state != DHCP_STATE_INIT_REBOOT, -EALREADY);
client->receive_message =
sd_event_source_unref(client->receive_message);
}
if (client->lease) {
+ in_addrs_free(client->lease->dns);
free(client->lease);
client->lease = NULL;
}
time_left = 60;
next_timeout = usec + time_left * USEC_PER_SEC;
-
break;
case DHCP_STATE_INIT:
break;
}
- next_timeout += (random_u() & 0x1fffff);
+ next_timeout += (random_u32() & 0x1fffff);
err = sd_event_add_monotonic(client->event, next_timeout,
10 * USEC_PER_MSEC,
break;
+ case DHCP_OPTION_DOMAIN_NAME_SERVER:
+ if (len >= 4) {
+ unsigned i;
+
+ in_addrs_free(lease->dns);
+
+ lease->dns = new0(struct in_addr*, len / 4 + 1);
+ if (!lease->dns)
+ return -ENOMEM;
+
+ for (i = 0; i < len / 4; i++) {
+ lease->dns[i] = new0(struct in_addr, 1);
+ memcpy(&lease->dns[i]->s_addr, option + 4 * i, 4);
+ }
+
+ lease->dns[i + 1] = NULL;
+ }
+
+ break;
+
case DHCP_OPTION_RENEWAL_T1_TIME:
if (len == 4) {
memcpy(&val, option, 4);
uint32_t lifetime)
{
return request_sent + (lifetime - 3) * USEC_PER_SEC +
- + (random_u() & 0x1fffff);
+ + (random_u32() & 0x1fffff);
}
static int client_set_lease_timeouts(sd_dhcp_client *client, uint64_t usec)
assert_return(client->state == DHCP_STATE_INIT ||
client->state == DHCP_STATE_INIT_REBOOT, -EBUSY);
- client->xid = random_u();
+ client->xid = random_u32();
r = dhcp_network_bind_raw_socket(client->index, &client->link);