Import all actions/tables from original code
This commit is contained in:
Nico Schottelius
parent
408dd6b782
commit
0a34380faf
1 changed files with 636 additions and 0 deletions
636
netpfga/minip4/src/minip4_solution-nat64.p4
Normal file
636
netpfga/minip4/src/minip4_solution-nat64.p4
Normal file
|
|
@ -0,0 +1,636 @@
|
|||
#include <core.p4>
|
||||
#include <sume_switch.p4>
|
||||
#include "headers.p4"
|
||||
|
||||
/********************************************************************************
|
||||
* Header
|
||||
*/
|
||||
|
||||
typedef bit<48> EthAddr_t;
|
||||
header Ethernet_h {
|
||||
EthAddr_t dstAddr;
|
||||
EthAddr_t srcAddr;
|
||||
bit<16> etherType;
|
||||
}
|
||||
|
||||
struct Parsed_packet {
|
||||
Ethernet_h ethernet;
|
||||
}
|
||||
|
||||
// user defined metadata: can be used to share information between
|
||||
// TopParser, TopPipe, and TopDeparser
|
||||
struct user_metadata_t {
|
||||
bit<8> unused;
|
||||
}
|
||||
|
||||
// digest_data, MUST be 256 bits -- what is this used for?
|
||||
struct digest_data_t {
|
||||
bit<256> unused;
|
||||
}
|
||||
|
||||
|
||||
/********************************************************************************
|
||||
* Parser
|
||||
*/
|
||||
|
||||
@Xilinx_MaxPacketRegion(1024)
|
||||
parser TopParser(packet_in b,
|
||||
out Parsed_packet p,
|
||||
out user_metadata_t user_metadata,
|
||||
out digest_data_t digest_data,
|
||||
inout sume_metadata_t sume_metadata) {
|
||||
state start {
|
||||
b.extract(p.ethernet);
|
||||
user_metadata.unused = 0;
|
||||
digest_data.unused = 0;
|
||||
|
||||
transition accept;
|
||||
}
|
||||
}
|
||||
|
||||
/********************************************************************************
|
||||
* Main
|
||||
*/
|
||||
control TopPipe(inout Parsed_packet p,
|
||||
inout user_metadata_t user_metadata,
|
||||
inout digest_data_t digest_data,
|
||||
inout sume_metadata_t sume_metadata) {
|
||||
|
||||
|
||||
action drop() {
|
||||
mark_to_drop();
|
||||
}
|
||||
|
||||
action set_egress_port (port_t out_port) {
|
||||
standard_metadata.egress_spec = out_port;
|
||||
}
|
||||
|
||||
action set_egress_port_and_mac (port_t out_port, mac_addr_t mac_addr) {
|
||||
hdr.ethernet.dst_addr = mac_addr;
|
||||
standard_metadata.egress_spec = out_port;
|
||||
}
|
||||
|
||||
action controller_reply(task_t task) {
|
||||
meta.task = task;
|
||||
meta.ingress_port = standard_metadata.ingress_port;
|
||||
clone3(CloneType.I2E, 100, meta);
|
||||
}
|
||||
|
||||
action controller_debug_table_id(table_t table_id) {
|
||||
meta.table_id = table_id;
|
||||
controller_reply(TASK_DEBUG);
|
||||
}
|
||||
|
||||
action controller_debug() {
|
||||
controller_reply(TASK_DEBUG);
|
||||
}
|
||||
|
||||
action multicast_pkg(mcast_t mcast_grp) { /* Output PKG on correct ports (plural) */
|
||||
standard_metadata.mcast_grp = mcast_grp;
|
||||
}
|
||||
|
||||
|
||||
/********************** NAT64 / NAT46 ACTIONS GENERIC ***********************************/
|
||||
|
||||
/* changes for icmp6 -> icmp */
|
||||
action nat64_icmp6_generic()
|
||||
{
|
||||
hdr.icmp.setValid();
|
||||
hdr.ipv4.protocol = PROTO_ICMP; // overwrite generic same protocol assumption
|
||||
|
||||
/* trigger checksumming */
|
||||
meta.switch_task = TASK_CHECKSUM_ICMP;
|
||||
|
||||
meta.chk_icmp = 1;
|
||||
|
||||
hdr.icmp6.setInvalid();
|
||||
|
||||
/* not needed, as we don't translate them (yet/ever) */
|
||||
hdr.icmp6_na_ns.setInvalid();
|
||||
hdr.icmp6_option_link_layer_addr.setInvalid();
|
||||
}
|
||||
|
||||
/* NAT64 protocol unspecific changes */
|
||||
action nat64_generic(ipv4_addr_t src, ipv4_addr_t dst) {
|
||||
hdr.ipv4.setValid();
|
||||
meta.chk_ipv4 = 1; /* need to calculate the hdrchecksum */
|
||||
|
||||
/* Stuff that might need to be fixed */
|
||||
hdr.ipv4.version = (bit<4>)4;
|
||||
hdr.ipv4.diff_serv = (bit<6>)0; // no ToS
|
||||
hdr.ipv4.ecn = (bit<2>)0; // unsupported
|
||||
|
||||
/* 5 is ok as long as we don't use options / padding /
|
||||
anything after the destination address */
|
||||
hdr.ipv4.ihl = (bit<4>) 5; // internet header length: 4*5 = 20
|
||||
hdr.ipv4.totalLen = (bit<16>) hdr.ipv6.payload_length + 20; // ok under above constraints
|
||||
|
||||
hdr.ipv4.identification = (bit<16>) 0; // no support for fragments
|
||||
hdr.ipv4.flags = (bit<3>) 0; // DF bit and more fragments
|
||||
hdr.ipv4.fragOffset = (bit<13>) 0; // 0 as there are no fragments
|
||||
|
||||
/* Stuff that should be fine */
|
||||
hdr.ethernet.ethertype = TYPE_IPV4;
|
||||
|
||||
hdr.ipv4.dst_addr = dst;
|
||||
hdr.ipv4.src_addr = src;
|
||||
|
||||
hdr.ipv4.ttl = hdr.ipv6.hop_limit;
|
||||
|
||||
hdr.ipv4.protocol = hdr.ipv6.next_header;
|
||||
|
||||
hdr.ipv6.setInvalid();
|
||||
}
|
||||
|
||||
/* nat64_prefix is the same as the matching key, but without the mask */
|
||||
action nat64_static(ipv6_addr_t v6_src, ipv4_addr_t v4_dst, ipv6_addr_t nat64_prefix) {
|
||||
ipv6_addr_t src_offset = hdr.ipv6.src_addr - v6_src;
|
||||
ipv4_addr_t src = v4_dst + (ipv4_addr_t) src_offset;
|
||||
|
||||
ipv4_addr_t dst = (ipv4_addr_t) (hdr.ipv6.dst_addr - nat64_prefix);
|
||||
|
||||
nat64_generic(src, dst);
|
||||
}
|
||||
|
||||
/* From https://tools.ietf.org/html/rfc792 (IPv4)
|
||||
|
||||
Echo or Echo Reply Message
|
||||
|
||||
0 1 2 3
|
||||
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
| Type | Code | Checksum |
|
||||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
| Identifier | Sequence Number |
|
||||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
| Data ...
|
||||
+-+-+-+-+-
|
||||
|
||||
|
||||
From https://tools.ietf.org/html/rfc4443#section-4.1
|
||||
|
||||
4.1. Echo Request Message
|
||||
|
||||
0 1 2 3
|
||||
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
| Type | Code | Checksum |
|
||||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
| Identifier | Sequence Number |
|
||||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
| Data ...
|
||||
+-+-+-+-+-
|
||||
|
||||
4.2. Echo Reply Message
|
||||
|
||||
0 1 2 3
|
||||
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
| Type | Code | Checksum |
|
||||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
| Identifier | Sequence Number |
|
||||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
| Data ...
|
||||
+-+-+-+-+-
|
||||
|
||||
|
||||
Type / code are different in ICMP4 and ICMP6!
|
||||
|
||||
*/
|
||||
|
||||
|
||||
/* changes for icmp6 -> icmp */
|
||||
action nat46_icmp_generic()
|
||||
{
|
||||
hdr.icmp6.setValid();
|
||||
hdr.ipv6.next_header = PROTO_ICMP6;
|
||||
|
||||
meta.chk_icmp6 = 1;
|
||||
meta.cast_length = (bit<32>) hdr.ipv6.payload_length;
|
||||
|
||||
hdr.icmp.setInvalid();
|
||||
}
|
||||
|
||||
/* NAT46: protocol unspecific changes */
|
||||
action nat46_generic(ipv6_addr_t src, ipv6_addr_t dst) {
|
||||
hdr.ipv6.setValid();
|
||||
hdr.ipv4.setInvalid();
|
||||
|
||||
hdr.ethernet.ethertype = TYPE_IPV6;
|
||||
|
||||
hdr.ipv6.dst_addr = dst;
|
||||
hdr.ipv6.src_addr = src;
|
||||
|
||||
hdr.ipv6.version = (bit<4>)6;
|
||||
hdr.ipv6.traffic_class = (bit<8>) hdr.ipv4.diff_serv;
|
||||
hdr.ipv6.flow_label = (bit<20>) 0;
|
||||
hdr.ipv6.payload_length = (bit<16>) hdr.ipv4.totalLen - 20;
|
||||
|
||||
hdr.ipv6.next_header = hdr.ipv4.protocol;
|
||||
hdr.ipv6.hop_limit = hdr.ipv4.ttl;
|
||||
|
||||
}
|
||||
|
||||
|
||||
/* matching key: v4_network specified again */
|
||||
action nat46_static(ipv6_addr_t v6_src, ipv4_addr_t v4_dst, ipv6_addr_t nat64_prefix) {
|
||||
ipv6_addr_t src = nat64_prefix + (ipv6_addr_t) hdr.ipv4.src_addr;
|
||||
|
||||
ipv4_addr_t dst_offset = hdr.ipv4.dst_addr - v4_dst;
|
||||
ipv6_addr_t dst = v6_src + (ipv6_addr_t) dst_offset;
|
||||
|
||||
nat46_generic(src, dst);
|
||||
}
|
||||
|
||||
table nat64 {
|
||||
key = {
|
||||
hdr.ipv6.dst_addr: lpm;
|
||||
}
|
||||
actions = {
|
||||
controller_debug;
|
||||
nat64_static;
|
||||
controller_debug_table_id;
|
||||
NoAction;
|
||||
}
|
||||
size = NAT64_TABLE_SIZE;
|
||||
// default_action = controller_debug_table_id(TABLE_NAT64);
|
||||
default_action = NoAction;
|
||||
}
|
||||
|
||||
table nat46 {
|
||||
key = {
|
||||
hdr.ipv4.dst_addr: lpm;
|
||||
}
|
||||
actions = {
|
||||
controller_debug;
|
||||
nat46_static;
|
||||
controller_debug_table_id;
|
||||
NoAction;
|
||||
}
|
||||
size = NAT64_TABLE_SIZE;
|
||||
default_action = controller_debug_table_id(TABLE_NAT46);
|
||||
}
|
||||
|
||||
/********************** NAT64 sessions ***********************************/
|
||||
|
||||
/* automatic translations */
|
||||
action nat64_tcp_session_translate(
|
||||
ipv4_addr_t src_addr,
|
||||
bit<16> src_port,
|
||||
ipv4_addr_t dst_addr,
|
||||
bit<16> dst_port)
|
||||
{
|
||||
hdr.ipv4.setValid();
|
||||
|
||||
hdr.tcp.src_port = src_port;
|
||||
hdr.tcp.dst_port = dst_port;
|
||||
|
||||
nat64_generic(src_addr, dst_addr);
|
||||
}
|
||||
|
||||
action nat46_tcp_session_translate(
|
||||
ipv6_addr_t src_addr,
|
||||
bit<16> src_port,
|
||||
ipv6_addr_t dst_addr,
|
||||
bit<16> dst_port)
|
||||
{
|
||||
hdr.ipv6.setValid();
|
||||
|
||||
hdr.tcp.src_port = src_port;
|
||||
hdr.tcp.dst_port = dst_port;
|
||||
|
||||
nat46_generic(src_addr, dst_addr);
|
||||
}
|
||||
|
||||
/* We are in the right range, need to create a session entry */
|
||||
action nat64_tcp_session_create()
|
||||
{
|
||||
controller_reply(TASK_NAT64_TCP_SESSION);
|
||||
}
|
||||
|
||||
|
||||
/* Used for detecting traffic that should have a session */
|
||||
table nat64_session {
|
||||
key = {
|
||||
hdr.ipv6.dst_addr: lpm;
|
||||
}
|
||||
actions = {
|
||||
controller_debug_table_id;
|
||||
NoAction;
|
||||
}
|
||||
size = NAT64_TABLE_SIZE;
|
||||
default_action = controller_debug_table_id(TABLE_NAT64_SESSION);
|
||||
}
|
||||
|
||||
|
||||
table nat64_tcp_session {
|
||||
key = {
|
||||
hdr.ipv6.src_addr: exact;
|
||||
hdr.ipv6.dst_addr: exact;
|
||||
hdr.tcp.src_port: exact;
|
||||
hdr.tcp.dst_port: exact;
|
||||
}
|
||||
actions = {
|
||||
controller_debug_table_id;
|
||||
nat64_tcp_session_create;
|
||||
nat64_tcp_session_translate;
|
||||
NoAction;
|
||||
}
|
||||
size = NAT64_TABLE_SIZE;
|
||||
default_action = nat64_tcp_session_create;
|
||||
}
|
||||
|
||||
table nat46_tcp_session {
|
||||
key = {
|
||||
hdr.ipv6.src_addr: exact;
|
||||
hdr.ipv6.dst_addr: exact;
|
||||
hdr.tcp.src_port: exact;
|
||||
hdr.tcp.dst_port: exact;
|
||||
}
|
||||
actions = {
|
||||
controller_debug_table_id;
|
||||
nat46_tcp_session_translate;
|
||||
NoAction;
|
||||
}
|
||||
size = NAT64_TABLE_SIZE;
|
||||
//default_action = controller_debug_table_id(TABLE_NAT64_TCP);
|
||||
default_action = NoAction;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/********************** ICMP6 + NDP + ICMP ***********************************/
|
||||
|
||||
/* old/unused action -- is it??*/
|
||||
action icmp6_answer() {
|
||||
if(hdr.icmp6.isValid()) {
|
||||
if(hdr.icmp6.code == ICMP6_ECHO_REQUEST) {
|
||||
ipv6_addr_t tmp = hdr.ipv6.src_addr;
|
||||
hdr.ipv6.src_addr = hdr.ipv6.dst_addr;
|
||||
hdr.ipv6.dst_addr = tmp;
|
||||
hdr.icmp6.code = ICMP6_ECHO_REPLY;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
action icmp6_neighbor_solicitation(ipv6_addr_t addr, mac_addr_t mac_addr) {
|
||||
/* egress = ingress */
|
||||
standard_metadata.egress_spec = standard_metadata.ingress_port;
|
||||
|
||||
/* 1. IPv6 changes */
|
||||
hdr.ipv6.dst_addr = hdr.ipv6.src_addr;
|
||||
hdr.ipv6.src_addr = addr;
|
||||
|
||||
/* 2. ICMP6 changes */
|
||||
hdr.icmp6.type = ICMP6_NA;
|
||||
hdr.icmp6.code = 0;
|
||||
hdr.icmp6.checksum = 42; // checksum is calculated in deparser - marking with 42 to see whether it is calculated
|
||||
|
||||
/* 3. icmp6/neighbor advertisement: values taken from real world answers */
|
||||
hdr.icmp6_na_ns.router = 0;
|
||||
hdr.icmp6_na_ns.solicitated = 1;
|
||||
hdr.icmp6_na_ns.override = 1;
|
||||
hdr.icmp6_na_ns.reserved = 0;
|
||||
hdr.icmp6_na_ns.target_addr = addr;
|
||||
|
||||
/* 4. Link layer options */
|
||||
hdr.icmp6_option_link_layer_addr.type = ICMP6_NDP_OPT_TARGET_LL;
|
||||
hdr.icmp6_option_link_layer_addr.ll_length = 1; /* 1* 64 bit */
|
||||
hdr.icmp6_option_link_layer_addr.mac_addr = mac_addr;
|
||||
|
||||
/* 5. Checksum trigger/info */
|
||||
meta.chk_icmp6_na_ns = 1;
|
||||
meta.cast_length = (bit<32>) hdr.ipv6.payload_length;
|
||||
}
|
||||
|
||||
action icmp6_echo_reply() {
|
||||
mac_addr_t mac_tmp = hdr.ethernet.dst_addr;
|
||||
hdr.ethernet.dst_addr = hdr.ethernet.src_addr;
|
||||
hdr.ethernet.src_addr = mac_tmp;
|
||||
|
||||
ipv6_addr_t addr_tmp = hdr.ipv6.dst_addr;
|
||||
hdr.ipv6.dst_addr = hdr.ipv6.src_addr;
|
||||
hdr.ipv6.src_addr = addr_tmp;
|
||||
|
||||
hdr.icmp6.type = ICMP6_ECHO_REPLY;
|
||||
|
||||
meta.chk_icmp6 = 1;
|
||||
|
||||
meta.cast_length = (bit<32>) hdr.ipv6.payload_length;
|
||||
}
|
||||
|
||||
table icmp6 {
|
||||
key = {
|
||||
hdr.ipv6.dst_addr: lpm;
|
||||
hdr.icmp6.type: exact;
|
||||
}
|
||||
actions = {
|
||||
controller_debug;
|
||||
icmp6_neighbor_solicitation;
|
||||
icmp6_echo_reply;
|
||||
controller_debug_table_id;
|
||||
NoAction;
|
||||
}
|
||||
size = ICMP6_TABLE_SIZE;
|
||||
default_action = controller_debug_table_id(TABLE_ICMP6);
|
||||
}
|
||||
|
||||
action icmp_echo_reply() {
|
||||
mac_addr_t mac_tmp = hdr.ethernet.dst_addr;
|
||||
ipv4_addr_t ipv4_tmp = hdr.ipv4.src_addr;
|
||||
|
||||
/* swap ethernet addresses */
|
||||
hdr.ethernet.dst_addr = hdr.ethernet.src_addr;
|
||||
hdr.ethernet.src_addr = mac_tmp;
|
||||
|
||||
/* swap ipv4 addresses */
|
||||
hdr.ipv4.src_addr = hdr.ipv4.dst_addr;
|
||||
hdr.ipv4.dst_addr = ipv4_tmp;
|
||||
|
||||
/* set correct type */
|
||||
hdr.icmp.type = ICMP_ECHO_REPLY;
|
||||
|
||||
meta.chk_icmp = 1;
|
||||
}
|
||||
|
||||
table icmp {
|
||||
key = {
|
||||
hdr.ipv4.dst_addr: lpm;
|
||||
hdr.icmp.type: exact;
|
||||
}
|
||||
actions = {
|
||||
icmp_echo_reply;
|
||||
controller_debug_table_id;
|
||||
NoAction;
|
||||
}
|
||||
size = ICMP_TABLE_SIZE;
|
||||
// default_action = controller_debug_table_id(TABLE_ICMP);
|
||||
default_action = NoAction; /* do not clone on miss */
|
||||
}
|
||||
|
||||
/********************** ARP ***********************************/
|
||||
|
||||
action arp_reply(mac_addr_t mac_addr) {
|
||||
/* swap */
|
||||
ipv4_addr_t ipv4_src = hdr.arp.dst_ipv4_addr;
|
||||
ipv4_addr_t ipv4_dst = hdr.arp.src_ipv4_addr;
|
||||
|
||||
/* swap/add */
|
||||
mac_addr_t mac_src = mac_addr;
|
||||
mac_addr_t mac_dst = hdr.arp.src_mac_addr;
|
||||
|
||||
/* fill the ethernet header */
|
||||
hdr.ethernet.dst_addr = mac_dst;
|
||||
hdr.ethernet.src_addr = mac_src;
|
||||
|
||||
/* fill the arp header */
|
||||
hdr.arp.dst_mac_addr = mac_dst;
|
||||
hdr.arp.src_mac_addr = mac_src;
|
||||
|
||||
/* swapping */
|
||||
hdr.arp.dst_ipv4_addr = ipv4_dst;
|
||||
hdr.arp.src_ipv4_addr = ipv4_src;
|
||||
|
||||
hdr.arp.opcode = ARP_REPLY;
|
||||
}
|
||||
|
||||
table v4_arp {
|
||||
key = {
|
||||
hdr.ethernet.dst_addr: exact;
|
||||
hdr.arp.opcode: exact;
|
||||
hdr.arp.dst_ipv4_addr: lpm;
|
||||
}
|
||||
actions = {
|
||||
controller_debug_table_id;
|
||||
arp_reply;
|
||||
NoAction;
|
||||
}
|
||||
size = ICMP6_TABLE_SIZE;
|
||||
default_action = controller_debug_table_id(TABLE_ARP);
|
||||
}
|
||||
|
||||
table v4_arp_egress {
|
||||
key = {
|
||||
hdr.arp.dst_ipv4_addr: lpm;
|
||||
}
|
||||
actions = {
|
||||
controller_debug_table_id;
|
||||
set_egress_port;
|
||||
NoAction;
|
||||
}
|
||||
size = ICMP6_TABLE_SIZE;
|
||||
default_action = controller_debug_table_id(TABLE_ARP_EGRESS);
|
||||
}
|
||||
|
||||
|
||||
/********************** ROUTING (egress definiton) TABLES ***********************************/
|
||||
|
||||
table v6_networks {
|
||||
key = {
|
||||
hdr.ipv6.dst_addr: lpm;
|
||||
}
|
||||
actions = {
|
||||
set_egress_port;
|
||||
set_egress_port_and_mac;
|
||||
controller_debug;
|
||||
controller_reply;
|
||||
controller_debug_table_id;
|
||||
NoAction;
|
||||
}
|
||||
size = ROUTING_TABLE_SIZE;
|
||||
|
||||
default_action = controller_debug_table_id(TABLE_V6_NETWORKS);
|
||||
}
|
||||
|
||||
table v4_networks {
|
||||
key = {
|
||||
hdr.ipv4.dst_addr: lpm;
|
||||
}
|
||||
actions = {
|
||||
set_egress_port;
|
||||
set_egress_port_and_mac;
|
||||
controller_debug;
|
||||
controller_debug_table_id;
|
||||
NoAction;
|
||||
}
|
||||
size = ROUTING_TABLE_SIZE;
|
||||
default_action = controller_debug_table_id(TABLE_V4_NETWORKS);
|
||||
}
|
||||
|
||||
|
||||
|
||||
action swap_eth_addresses() {
|
||||
EthAddr_t temp = p.ethernet.dstAddr;
|
||||
p.ethernet.dstAddr = p.ethernet.srcAddr;
|
||||
p.ethernet.srcAddr = temp;
|
||||
|
||||
/* set egress port */
|
||||
sume_metadata.dst_port = sume_metadata.src_port;
|
||||
}
|
||||
|
||||
action send_to_port1() {
|
||||
sume_metadata.dst_port = 1;
|
||||
}
|
||||
|
||||
action send_to_all_ports() {
|
||||
/* Taken from commands.txt of the "int" project:
|
||||
table_cam_add_entry forward set_output_port 0xffffffffffff => 0b01010101
|
||||
|
||||
python convert:
|
||||
>>> 0b01010101
|
||||
85
|
||||
|
||||
*/
|
||||
sume_metadata.dst_port = 85;
|
||||
}
|
||||
|
||||
action do_nothing() {
|
||||
EthAddr_t temp = p.ethernet.dstAddr;
|
||||
}
|
||||
|
||||
table lookup_table {
|
||||
key = {
|
||||
p.ethernet.dstAddr: exact;
|
||||
}
|
||||
|
||||
actions = {
|
||||
swap_eth_addresses;
|
||||
do_nothing;
|
||||
send_to_port1;
|
||||
send_to_all_ports;
|
||||
}
|
||||
size = 64;
|
||||
// default_action = swap_eth_addresses; // test_mirror(): in gen_testdata.py
|
||||
default_action = send_to_port1; // test_port1()
|
||||
// default_action = send_to_all_ports; // test_allports():
|
||||
}
|
||||
|
||||
apply {
|
||||
lookup_table.apply();
|
||||
}
|
||||
}
|
||||
|
||||
/********************************************************************************
|
||||
* Deparser
|
||||
*/
|
||||
|
||||
@Xilinx_MaxPacketRegion(1024)
|
||||
control TopDeparser(packet_out b,
|
||||
in Parsed_packet p,
|
||||
in user_metadata_t user_metadata,
|
||||
inout digest_data_t digest_data,
|
||||
inout sume_metadata_t sume_metadata) {
|
||||
apply {
|
||||
b.emit(p.ethernet);
|
||||
}
|
||||
}
|
||||
|
||||
/********************************************************************************
|
||||
* Switch
|
||||
*/
|
||||
|
||||
SimpleSumeSwitch(
|
||||
TopParser(),
|
||||
TopPipe(),
|
||||
TopDeparser()
|
||||
) main;
|
||||
Loading…
Reference in a new issue