Defined in 1 files as a macro:

• sys/sys/protosw.h, line 292 (as a macro)

Referenced in 3 files:

• sys/netinet/ip_icmp.c, line 507
• sys/netinet/tcp_subr.c
  • line 2462
  • line 2596
• sys/netinet6/icmp6.c, line 483