Defined in 1 files as a macro:

• sys/netinet/ip_var.h, line 163 (as a macro)

Referenced in 7 files:

• sys/netinet/ip_carp.c, line 984
• sys/netinet/ip_divert.c, line 488
• sys/netinet/ip_output.c, line 369
• sys/netinet/raw_ip.c, line 602
• sys/netinet/sctp_os_bsd.h, line 416
• sys/netipsec/ipsec_output.c, line 798
• sys/netpfil/pf/if_pfsync.c, line 2342