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remove unreferenced macros...

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These were previously used while trying to parse out specific headers.  They are no longer required though because the current length bounds checks covers edge cases.
This commit is contained in:
Steven Polley 2024-04-16 20:09:01 -06:00
parent e85b644e82
commit beed9726e3
1 changed files with 0 additions and 5 deletions
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hypd/server/hyp_bpf.c
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@ -7,12 +7,8 @@ Copyright © 2024 Steven Polley <himself@stevenpolley.net>
#include "bpf_endian.h" #include "bpf_endian.h"
#include <bpf/bpf_helpers.h> #include <bpf/bpf_helpers.h>
char __license[] SEC("license") = "BSD"; char __license[] SEC("license") = "BSD";
#define ETH_P_IP 0x0800
#define IP_FRAGMENTED 65343
// representation of knock data that gets sent to userspace // representation of knock data that gets sent to userspace
struct knock_data { struct knock_data {
__u32 srcip; // 4 bytes __u32 srcip; // 4 bytes
@ -44,7 +40,6 @@ int xdp_prog_func(struct xdp_md *ctx) {
// parse ethernet header // parse ethernet header
struct ethhdr *eth = data; struct ethhdr *eth = data;
if ((void *)eth + sizeof(*eth) <= data_end) { if ((void *)eth + sizeof(*eth) <= data_end) {
// parse IP header // parse IP header
struct iphdr *ip = data + sizeof(*eth); struct iphdr *ip = data + sizeof(*eth);