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Allow gw to be null

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Allow interfaces to be configured without a default gateway, for
local-only communication.

In case of the AP interface, if gw is not set, do not offer it.
This commit is contained in:
Deomid Ryabkov 2016-12-14 19:30:40 +00:00
parent 2e9c06b584
commit cbff82cc44
2 changed files with 9 additions and 7 deletions
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14
components/lwip/apps/dhcpserver.c
View File

@ -268,12 +268,14 @@ static u8_t *add_offer_options(u8_t *optptr)
tcpip_adapter_get_ip_info(ESP_IF_WIFI_AP, &if_ip);
*optptr++ = DHCP_OPTION_ROUTER;
*optptr++ = 4;
*optptr++ = ip4_addr1(&if_ip.gw);
*optptr++ = ip4_addr2(&if_ip.gw);
*optptr++ = ip4_addr3(&if_ip.gw);
*optptr++ = ip4_addr4(&if_ip.gw);
if (!ip4_addr_isany_val(if_ip.gw)) {
*optptr++ = DHCP_OPTION_ROUTER;
*optptr++ = 4;
*optptr++ = ip4_addr1(&if_ip.gw);
*optptr++ = ip4_addr2(&if_ip.gw);
*optptr++ = ip4_addr3(&if_ip.gw);
*optptr++ = ip4_addr4(&if_ip.gw);
}
}
#ifdef USE_DNS

2
components/tcpip_adapter/tcpip_adapter_lwip.c
View File

@ -213,7 +213,7 @@ esp_err_t tcpip_adapter_set_ip_info(tcpip_adapter_if_t tcpip_if, tcpip_adapter_i
tcpip_adapter_dhcp_status_t status;
if (tcpip_if >= TCPIP_ADAPTER_IF_MAX || ip_info == NULL ||
ip4_addr_isany_val(ip_info->ip) || ip4_addr_isany_val(ip_info->netmask) || ip4_addr_isany_val(ip_info->gw)) {
ip4_addr_isany_val(ip_info->ip) || ip4_addr_isany_val(ip_info->netmask)) {
return ESP_ERR_TCPIP_ADAPTER_INVALID_PARAMS;
}