Defined in 4 files as a struct:

• external/bsd/tcpdump/dist/ip.h, line 121 (as a struct)
• external/mpl/dhcp/dist/includes/netinet/ip.h, line 125 (as a struct)
• sys/netinet/ip.h, line 193 (as a struct)
• tests/usr.bin/xlint/lint1/d_packed_structs.c, line 11 (as a struct)

Referenced in 2 files:

• sys/netinet/ip.h, line 253
• sys/netinet/ip_input.c
  • line 857
  • line 1039