static void eth_serialize(struct proto_info const *info_, uint8_t **buf)
{
struct eth_proto_info const *info = DOWNCAST(info_, info, eth_proto_info);
proto_info_serialize(info_, buf);
serialize_3(buf, info->vlan_id); // 16 bits for vlan itself, +we need to handle -1 for UNSET
serialize_n(buf, info->addr[0], ETH_ADDR_LEN);
serialize_n(buf, info->addr[1], ETH_ADDR_LEN);
serialize_2(buf, info->protocol);
}
static void dhcp_serialize(struct proto_info const *info_, uint8_t **buf)
{
struct dhcp_proto_info const *info = DOWNCAST(info_, info, dhcp_proto_info);
proto_info_serialize(info_, buf);
serialize_1(buf, info->hw_addr_is_eth + (info->opcode << 1U));
serialize_4(buf, info->xid);
serialize_1(buf, info->set_values);
if (info->set_values & DHCP_CLIENT_SET) ip_addr_serialize(&info->client, buf);
serialize_n(buf, info->client_mac, sizeof(info->client_mac));
serialize_str(buf, info->server_name);
}
void ip_addr_serialize(struct ip_addr const *addr, uint8_t **buf)
{
if (addr->family == AF_INET) {
serialize_1(buf, 4);
serialize_4(buf, addr->u.v4.s_addr);
} else if (addr->family == AF_INET6) {
serialize_1(buf, 6);
serialize_n(buf, &addr->u.v6, sizeof(addr->u.v6));
} else {
SLOG(LOG_ERR, "Cannot serialize ip_addr of unknown type");
}
}