Defined in 1 files as a macro:

• bsd/sys/protosw.h, line 319 (as a macro)

Referenced in 5 files:

• bsd/netinet/ip_icmp.c
  • line 363
  • line 435
• bsd/netinet/tcp_subr.c
  • line 1189
  • line 1241
• bsd/netinet6/ah_input.c, line 1001
• bsd/netinet6/esp_input.c, line 980
• bsd/netinet6/icmp6.c, line 502