C++ (Cpp) pico_ipv4_link_get示例

示例#1

文件： pico_dhcp_server.c 项目： jinhu/picotcp

static struct pico_dhcp_server_setting *pico_dhcp_server_add_setting(struct pico_dhcp_server_setting *setting)
{
  uint16_t port = PICO_DHCPD_PORT;
  struct pico_dhcp_server_setting *dhcps = NULL, *found = NULL, test = {0};
  struct pico_ipv4_link *link = NULL;
  
  link = pico_ipv4_link_get(&setting->server_ip);
  if (!link) {
    pico_err = PICO_ERR_EINVAL;
    return NULL;
  }
  test.dev = setting->dev;
  found = pico_tree_findKey(&DHCPSettings, &test);
  if (found) {
    pico_err = PICO_ERR_EINVAL;
    return NULL;
  }
  dhcps = pico_zalloc(sizeof(struct pico_dhcp_server_setting));
  if (!dhcps) {
    pico_err = PICO_ERR_ENOMEM;
    return NULL;
  }

  dhcps->lease_time = setting->lease_time;
  dhcps->pool_start = setting->pool_start;
  dhcps->pool_next = setting->pool_next;
  dhcps->pool_end = setting->pool_end;
  dhcps->dev = link->dev;
  dhcps->server_ip = link->address;
  dhcps->netmask = link->netmask;

  /* default values if not provided */
  if (!dhcps->pool_start)
    dhcps->pool_start = (dhcps->server_ip.addr & dhcps->netmask.addr) | DHCP_SERVER_POOL_START;
  if (!dhcps->pool_end)
    dhcps->pool_end = (dhcps->server_ip.addr & dhcps->netmask.addr) | DHCP_SERVER_POOL_END;
  if (!dhcps->lease_time)
    dhcps->lease_time = DHCP_SERVER_LEASE_TIME;
  dhcps->pool_next = dhcps->pool_start;

  dhcps->s = pico_socket_open(PICO_PROTO_IPV4, PICO_PROTO_UDP, &pico_dhcpd_wakeup);
  if (!dhcps->s) {
    dhcps_dbg("DHCP server ERROR: failure opening socket (%s)\n", strerror(pico_err));
    pico_free(dhcps);
    return NULL;
  }
  if (pico_socket_bind(dhcps->s, &dhcps->server_ip, &port) < 0) {
    dhcps_dbg("DHCP server ERROR: failure binding socket (%s)\n", strerror(pico_err));
    pico_free(dhcps);
    return NULL;
  }
  
  pico_tree_insert(&DHCPSettings, dhcps);
  return dhcps;
}

示例#2

文件： pico_dhcp_server.c 项目： AustinHunting/picotcp

static struct pico_dhcp_server_setting *pico_dhcp_server_add_setting(struct pico_dhcp_server_setting *setting)
{
    struct pico_dhcp_server_setting *dhcps = NULL, *found = NULL, test = {
        0
    };
    struct pico_ipv4_link *link = NULL;

    link = pico_ipv4_link_get(&setting->server_ip);
    if (!link) {
        pico_err = PICO_ERR_EINVAL;
        return NULL;
    }

    test.dev = setting->dev;
    found = pico_tree_findKey(&DHCPSettings, &test);
    if (found) {
        pico_err = PICO_ERR_EINVAL;
        return NULL;
    }

    dhcps = PICO_ZALLOC(sizeof(struct pico_dhcp_server_setting));
    if (!dhcps) {
        pico_err = PICO_ERR_ENOMEM;
        return NULL;
    }

    dhcps->lease_time = setting->lease_time;
    dhcps->pool_start = setting->pool_start;
    dhcps->pool_next = setting->pool_next;
    dhcps->pool_end = setting->pool_end;
    dhcps->dev = link->dev;
    dhcps->server_ip = link->address;
    dhcps->netmask = link->netmask;

    /* default values if not provided */
    dhcps_set_default_lease_time_if_not_provided(dhcps);
    dhcps_set_default_pool_end_if_not_provided(dhcps);
    dhcps_set_default_pool_start_if_not_provided(dhcps);

    dhcps->pool_next = dhcps->pool_start;

    return dhcps_try_open_socket(dhcps);

}