diff options
Diffstat (limited to 'src/plugins/nat/lib/inlines.h')
| -rw-r--r-- | src/plugins/nat/lib/inlines.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/plugins/nat/lib/inlines.h b/src/plugins/nat/lib/inlines.h index 46be64d36cf..fe1f7dd27bc 100644 --- a/src/plugins/nat/lib/inlines.h +++ b/src/plugins/nat/lib/inlines.h @@ -20,6 +20,37 @@ #include <vnet/ip/icmp46_packet.h> +always_inline nat_protocol_t +ip_proto_to_nat_proto (u8 ip_proto) +{ + static const nat_protocol_t lookup_table[256] = { + [IP_PROTOCOL_TCP] = NAT_PROTOCOL_TCP, + [IP_PROTOCOL_UDP] = NAT_PROTOCOL_UDP, + [IP_PROTOCOL_ICMP] = NAT_PROTOCOL_ICMP, + [IP_PROTOCOL_ICMP6] = NAT_PROTOCOL_ICMP, + }; + + return lookup_table[ip_proto]; +} + +static_always_inline u8 +nat_proto_to_ip_proto (nat_protocol_t nat_proto) +{ + ASSERT (nat_proto <= NAT_PROTOCOL_ICMP); + + static const u8 lookup_table[256] = { + [NAT_PROTOCOL_OTHER] = ~0, + [NAT_PROTOCOL_TCP] = IP_PROTOCOL_TCP, + [NAT_PROTOCOL_UDP] = IP_PROTOCOL_UDP, + [NAT_PROTOCOL_ICMP] = IP_PROTOCOL_ICMP, + }; + + ASSERT (NAT_PROTOCOL_OTHER == nat_proto || NAT_PROTOCOL_TCP == nat_proto + || NAT_PROTOCOL_UDP == nat_proto || NAT_PROTOCOL_ICMP == nat_proto); + + return lookup_table[nat_proto]; +} + static_always_inline u8 icmp_type_is_error_message (u8 icmp_type) { |