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[BUILD IS FAILING] Added file system hooks and other improvements. Uploading because of needing to backup

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h3xduck
2022-01-04 20:09:59 -05:00
parent 74873dbca5
commit f8774ac9cf
15 changed files with 1132 additions and 988 deletions
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51
src/user/include/modules/fs.h Normal file
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#ifndef __MOD_FS_H
#define __MOD_FS_H
#include <linux/bpf.h>
#include <bpf/bpf.h>
#include <bpf/libbpf.h>
#include "common.h"
#include "xdp_filter.skel.h"
//Connections
int attach_kprobe__64_compat_sys_read(struct xdp_filter_bpf *skel){
skel->links.kprobe__64_compat_sys_read = bpf_program__attach(skel->progs.kprobe__64_compat_sys_read);
return libbpf_get_error(skel->links.kprobe__64_compat_sys_read);
}
int attach_kprobe__64_sys_read(struct xdp_filter_bpf *skel){
skel->links.kprobe__64_sys_read = bpf_program__attach(skel->progs.kprobe__64_sys_read);
return libbpf_get_error(skel->links.kprobe__64_sys_read);
}
int attach_fs_all(struct xdp_filter_bpf *skel){
return attach_kprobe__64_compat_sys_read(skel) |
attach_kprobe__64_sys_read(skel);
}
//Disconnections
int detach_kprobe__64_compat_sys_read(struct xdp_filter_bpf *skel){
int err = detach_link_generic(skel->links.kprobe__64_compat_sys_read);
if(err<0){
fprintf(stderr, "Failed to detach fs link\n");
return -1;
}
return 0;
}
int detach_kprobe__64_sys_read(struct xdp_filter_bpf *skel){
int err = detach_link_generic(skel->links.kprobe__64_sys_read);
if(err<0){
fprintf(stderr, "Failed to detach fs link\n");
return -1;
}
return 0;
}
int detach_fs_all(struct xdp_filter_bpf *skel){
return detach_kprobe__64_compat_sys_read(skel) ||
detach_kprobe__64_sys_read(skel);
}
#endif