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Make it more stupid - forget about tables

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This commit is contained in:
Nico Schottelius 2019-07-28 20:08:28 +02:00
commit 53ce47a54e
6 changed files with 298 additions and 36 deletions
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5
p4src/actions_nat64_generic.p4
View file

@ -128,8 +128,8 @@ action nat46_icmp_generic()
hdr.icmp.setInvalid();
}
/* NAT46: protocol unspecific changes */
action nat46_generic(ipv6_addr_t src, ipv6_addr_t dst) {
/* NAT46: protocol unspecific changes */
action nat46_generic(ipv6_addr_t src, ipv6_addr_t dst) {
hdr.ipv6.setValid();
hdr.ipv4.setInvalid();
@ -171,7 +171,6 @@ action nat46_icmp_generic()
NoAction;
}
size = NAT64_TABLE_SIZE;
// default_action = controller_debug_table_id(TABLE_NAT64);
default_action = NoAction;
}

17
p4src/minip4_solution.p4
View file

@ -58,20 +58,17 @@ control RealMain(
#include "actions_egress.p4"
#include "actions_delta_checksum.p4"
#include "netpfga_dummy.p4"
apply {
bit<17> tmp17 = 0;
bool apply_v4networks = true;
bool apply_v6networks = true;
// #include "netpfga_nat64.p4"
/* does not compile without a table - give it a table */
dummy_table_for_netpfga.apply();
// if(apply_v4networks == true) {
v4_networks.apply();
// }
// if(apply_v6networks == true) {
// v6_networks.apply();
// }
/* continue without tables */
#include "netpfga_nat64_stupid_hardcoded.p4"
}
}

13
p4src/netpfga.p4
View file

@ -1,14 +1,6 @@
#ifndef DUMMY_NETPFGA
#define DUMMY_NETPFGA
action do_nothing() {
;
}
action send_to_port(port_t port) {
sume_metadata.dst_port = port;
}
action send_to_port1() {
sume_metadata.dst_port = 1;
}
@ -19,12 +11,9 @@ table dummy_table_for_netpfga {
}
actions = {
do_nothing;
send_to_port1;
send_to_port;
}
size = TEST_TABLE_SIZE;
// default_action = do_nothing;
size = 64;
default_action = send_to_port1;
}

46
p4src/netpfga_nat64_stupid_hardcoded.p4 Normal file
View file

@ -0,0 +1,46 @@
port_t v6_out = 64;
port_t v4_out = 16;
/* nat64 */
/*
>>> int(ipaddress.IPv4Address("10.0.0.0"))
167772160
>>> int(ipaddress.IPv6Address("2001:db8:42::"))
42540766411362381960998550477184434176
*/
ipv6_addr_t v6_src = 42540766411362381960998550477184434176; /* 2001:db8:42:: -> v6 source range*/
ipv6_addr_t v6_dst = 42540766411362381960998550477184434176; /* 2001:db8:42:: -> v6 source range*/
ipv6_addr_t nat64_prefix = 42540766411362381960998550477184434176; /* 2001:db8:42:: -> v6 destination range */
ipv4_addr_t v4_dst = 167772160; /* 10.0.0.0 -> v4 destination range */
/* if it is ipv6, we always translate to IPv4 and output on v4_out */
if(hdr.ipv6.isValid()) {
nat64_static(v6_src, v4_dst, nat64_prefix);
if(hdr.udp.isValid()) {
delta_udp_from_v6_to_v4
}
if(hdr.tcp.isValid()) {
delta_tcp_from_v6_to_v4
}
set_egress_port(v4_out);
} else if(hdr.ipv4.isValid()) {
nat46_static(v6_dst, v4_dst, nat64_prefix);
if(hdr.udp.isValid()) {
delta_udp_from_v4_to_v6
}
if(hdr.tcp.isValid()) {
delta_tcp_from_v4_to_v6
}
set_egress_port(v6_out);
} else {
set_egress_port(1);
}