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Parse down to icmp6_na_ns

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Nico Schottelius 2019-03-23 13:33:25 +01:00
commit f79033c0c9
4 changed files with 273 additions and 221 deletions
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23
p4src/headers.p4
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@ -37,7 +37,7 @@ const task_t TASK_ICMP6_GENERAL = 2;
const task_t TASK_DEBUG = 3;
const task_t TASK_ICMP6_REPLY = 4;
/* 48+48+16 = 112 */
header ethernet_t {
mac_addr_t dst_addr;
mac_addr_t src_addr;
@ -60,7 +60,10 @@ header ipv4_t {
ipv4_addr_t dst_addr;
}
/* https://en.wikipedia.org/wiki/IPv6_packet */
/*
https://en.wikipedia.org/wiki/IPv6_packet
64 + 256 = 320
*/
header ipv6_t {
bit<4> version;
bit<8> traffic_class;
@ -105,12 +108,25 @@ header icmp6_t {
bit<16> checksum;
}
/*
https://tools.ietf.org/html/rfc4861#section-4.4
*/
header icmp6_na_ns_t {
bit<1> router;
bit<1> solicitated;
bit<1> override;
bit<29> reserved;
ipv6_addr_t target_addr;
}
header icmp_t {
bit<8> type;
bit<8> code;
bit<16> checksum;
bit<32> rest;
}
header cpu_t {
task_t task;
bit<16> ingress_port;
@ -123,9 +139,10 @@ struct headers {
ipv6_t ipv6;
tcp_t tcp;
udp_t udp;
icmp6_t icmp6;
icmp_t icmp;
cpu_t cpu;
icmp6_t icmp6;
icmp6_na_ns_t icmp6_na_ns;
}
struct metadata {