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Fixed the whole header setup, now correctly using the kernel headers instead of normal development ones. Ready to go on with original plan of file system hooking

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h3xduck
2022-01-06 13:31:52 -05:00
parent 4882ce790c
commit 193d9ec28f
16 changed files with 128072 additions and 50 deletions
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5
src/ebpf/include/xdp/xdp_helper.h
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@@ -1,7 +1,8 @@
#ifndef __XDP_HELPER_H__
#define __XDP_HELPER_H__
#include <linux/types.h>
//#include <linux/types.h>
#include "newnewvmlinux.h"
#include <bpf/bpf_helpers.h>
@@ -84,7 +85,7 @@ static __always_inline struct expand_return expand_tcp_packet_payload(struct xdp
//We modify the fields we care about of the headers
bpf_printk("before: %i, checksum %u\n", ret.ip->tot_len, ret.ip->check);
ret.ip->tot_len = htons(ntohs(ret.ip->tot_len) + more_bytes);
ret.ip->tot_len = bpf_htons(bpf_ntohs(ret.ip->tot_len) + more_bytes);
__u32 csum = 0;
ret.ip->check = 0;
ipv4_csum(ret.ip, sizeof(struct iphdr), &csum);