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Modified LwIP stack and LwIP mbed-os wrapper to support sending IPv6 

UDP packets when IPv4 and IPv6 dual mode stack is enabled and the IPv6
packet is sent over link-local inerface.
pull/11877/head
Arun S 2019-11-14 13:07:38 +05:30
parent fd22997b60
commit dc7178f176
2 changed files with 3 additions and 6 deletions
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2
features/lwipstack/LWIPStack.cpp
View File

@ -439,7 +439,7 @@ nsapi_size_or_error_t LWIP::socket_sendto(nsapi_socket_t handle, const SocketAdd
}
if (netif_) {
if ((addr.version == NSAPI_IPv4 && !get_ipv4_addr(netif_)) ||
(addr.version == NSAPI_IPv6 && !get_ipv6_addr(netif_))) {
(addr.version == NSAPI_IPv6 && !get_ipv6_addr(netif_) && !get_ipv6_link_local_addr(netif_))) {
return NSAPI_ERROR_PARAMETER;
}
}

7
features/lwipstack/lwip_tools.cpp
View File

@ -273,11 +273,8 @@ bool convert_mbed_addr_to_lwip(ip_addr_t *out, const nsapi_addr_t *in)
#if LWIP_IPV4 && LWIP_IPV6
if (in->version == NSAPI_UNSPEC) {
#if IP_VERSION_PREF == PREF_IPV4
ip_addr_set_zero_ip4(out);
#else
ip_addr_set_zero_ip6(out);
#endif
ip6_addr_set_zero(ip_2_ip6(out));
IP_SET_TYPE(out, IPADDR_TYPE_ANY);
return true;
}
#endif