hook_ref4 25 include/net/netfilter/nf_synproxy.h unsigned int hook_ref4; hook_ref4 790 net/netfilter/nf_synproxy_core.c if (snet->hook_ref4 == 0) { hook_ref4 797 net/netfilter/nf_synproxy_core.c snet->hook_ref4++; hook_ref4 804 net/netfilter/nf_synproxy_core.c snet->hook_ref4--; hook_ref4 805 net/netfilter/nf_synproxy_core.c if (snet->hook_ref4 == 0)