Symbol: LINUX_MIB_TCPSYNCHALLENGE
net/ipv4/proc.c
256
SNMP_MIB_ITEM("TCPSYNChallenge", LINUX_MIB_TCPSYNCHALLENGE),
net/ipv4/tcp_input.c
6456
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPSYNCHALLENGE);