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Completed detachment of probes, enabling to attach and detach at will. Work needs to be done with xdp tho

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This commit is contained in:
h3xduck
2022-01-02 06:28:45 -05:00
parent d18b0aa23c
commit adaf909781
6 changed files with 55 additions and 4 deletions
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2
src/user/include/modules/module_manager.h
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@@ -22,6 +22,4 @@ typedef struct module_config_t{
extern module_config_t module_config;
#endif

14
src/user/include/modules/sched.h
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@@ -5,6 +5,7 @@
#include <bpf/libbpf.h>
#include "xdp_filter.skel.h"
//Connections
int attach_handle_sched_process_exec(struct xdp_filter_bpf *skel){
skel->links.handle_sched_process_exec = bpf_program__attach(skel->progs.handle_sched_process_exec);
return libbpf_get_error(skel->links.handle_sched_process_exec);
@@ -15,4 +16,17 @@ int attach_sched_all(struct xdp_filter_bpf *skel){
}
//Disconnections
int detach_link_generic(struct bpf_link *link){
int ret = bpf_link__destroy(link);
if(ret!=0){
return -1;
}
return 0;
}
int detach_sched_all(struct xdp_filter_bpf *skel){
return detach_link_generic(skel->links.handle_sched_process_exec);
}
#endif

3
src/user/include/modules/xdp.h
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@@ -46,9 +46,10 @@ int attach_xdp_all(struct xdp_filter_bpf *skel, __u32 ifindex, __u32 flags){
return 0;
}
int detach_xdp_all(__u32 fd, __u32 ifindex, __u32 flags){
int detach_xdp_all(__u32 ifindex, __u32 fd, __u32 flags){
int err = bpf_set_link_xdp_fd(ifindex, fd, flags);
if(err<0){
perror("j");
fprintf(stderr, "Failed to detach XDP program\n");
return -1;
}