From 6ffb06af70faa5657f2c6091fe23500007e2bd44 Mon Sep 17 00:00:00 2001 From: dzwdz Date: Wed, 17 Aug 2022 21:26:29 +0200 Subject: user/ethdump: file per protocol, ethernet frame functions --- src/user/app/ethdump/proto.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 src/user/app/ethdump/proto.h (limited to 'src/user/app/ethdump/proto.h') diff --git a/src/user/app/ethdump/proto.h b/src/user/app/ethdump/proto.h new file mode 100644 index 0000000..f47ca53 --- /dev/null +++ b/src/user/app/ethdump/proto.h @@ -0,0 +1,31 @@ +#pragma once +#include +#include + +typedef uint8_t mac_t[6]; + +extern struct net_state { + mac_t mac; + uint32_t ip; + + handle_t raw_h; +} state; + +enum { /* ethertype */ + ET_IPv4 = 0x800, + ET_ARP = 0x806, +}; + +struct ethernet { + const mac_t *src, *dst; + uint16_t type; +}; + + +void arp_parse(const uint8_t *buf, size_t len); +void icmp_parse(const uint8_t *buf, size_t len); +void ipv4_parse(const uint8_t *buf, size_t len); + +void ether_parse(const uint8_t *buf, size_t len); +uint8_t *ether_start(size_t len, struct ethernet ether); +void ether_finish(uint8_t *pkt); -- cgit v1.2.3