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| author | Paul Buetow <paul@buetow.org> | 2024-02-16 02:06:14 +0200 |
|---|---|---|
| committer | Paul Buetow <paul@buetow.org> | 2024-02-16 02:06:14 +0200 |
| commit | 202c3c4e6fe6bd8082e221f8866dd1d55a398636 (patch) | |
| tree | 4ceb5af36140a64cc7bf4829b8771239488e0806 /ioriotng.bpf.c | |
| parent | 04fa01992ad88ea8e9cd05e7cbb9f81087b23aff (diff) | |
move C file to internal
Diffstat (limited to 'ioriotng.bpf.c')
| -rw-r--r-- | ioriotng.bpf.c | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/ioriotng.bpf.c b/ioriotng.bpf.c deleted file mode 100644 index 1b64ee4..0000000 --- a/ioriotng.bpf.c +++ /dev/null @@ -1,100 +0,0 @@ -//+build ignore - -#include "internal/types/vmlinux.h" -#include <bpf/bpf_helpers.h> -#include "internal/types/types.bpf.h" -#include "internal/types/maps.bpf.h" - -static inline int filter() { - u32 key = 1; - struct flags *flagsp = bpf_map_lookup_elem(&flags_map, &key); - return flagsp == NULL || (bpf_get_current_uid_gid() & 0xFFFFFFFF) != flagsp->uid_filter; -} - -SEC("tracepoint/syscalls/sys_enter_openat") -int handle_enter_openat(struct trace_event_raw_sys_enter *ctx) { - if (filter()) - return 0; - - struct openat_enter_event *ev = bpf_ringbuf_reserve(&event_map, sizeof(struct openat_enter_event), 0); - if (!ev) - return 0; - - ev->op_id = OPENAT_ENTER_OP_ID; - ev->tid = bpf_get_current_pid_tgid(); - ev->time = bpf_ktime_get_ns(); - - __builtin_memset(&(ev->filename), 0, sizeof(ev->filename) + sizeof(ev->comm)); - bpf_probe_read_user_str(ev->filename, sizeof(ev->filename), (void *)ctx->args[1]); - bpf_get_current_comm(&ev->comm, sizeof(ev->comm)); - bpf_ringbuf_submit(ev, 0); - - return 0; -} - -SEC("tracepoint/syscalls/sys_exit_openat") -int handle_exit_openat(struct trace_event_raw_sys_exit *ctx) { - if (filter()) - return 0; - - struct fd_event *ev = bpf_ringbuf_reserve(&event_map, sizeof(struct fd_event), 0); - if (!ev) - return 0; - - ev->op_id = OPENAT_EXIT_OP_ID; - ev->tid = bpf_get_current_pid_tgid(); - ev->time = bpf_ktime_get_ns(); - ev->fd = ctx->ret; - - bpf_ringbuf_submit(ev, 0); - - return 0; -} - -SEC("tracepoint/syscalls/sys_enter_open") -int handle_enter_open(struct trace_event_raw_sys_enter *ctx) { - return handle_enter_openat(ctx); -} - -SEC("tracepoint/syscalls/sys_exit_open") -int handle_exit_open(struct trace_event_raw_sys_exit *ctx) { - return handle_exit_openat(ctx); -} - -SEC("tracepoint/syscalls/sys_enter_close") -int handle_enter_close(struct trace_event_raw_sys_enter *ctx) { - if (filter()) - return 0; - - struct fd_event *ev = bpf_ringbuf_reserve(&event_map, sizeof(struct fd_event), 0); - if (!ev) - return 0; - - ev->op_id = CLOSE_ENTER_OP_ID; - ev->tid = bpf_get_current_pid_tgid(); - ev->time = bpf_ktime_get_ns(); - ev->fd = (int)ctx->args[0]; - - bpf_ringbuf_submit(ev, 0); - return 0; -} - -SEC("tracepoint/syscalls/sys_exit_close") -int handle_exit_close(struct trace_event_raw_sys_enter *ctx) { - if (filter()) - return 0; - - struct null_event *ev = bpf_ringbuf_reserve(&event_map, sizeof(struct null_event), 0); - if (!ev) - return 0; - - ev->op_id = CLOSE_EXIT_OP_ID; - ev->tid = bpf_get_current_pid_tgid(); - ev->time = bpf_ktime_get_ns(); - - bpf_ringbuf_submit(ev, 0); - - return 0; -} - -char LICENSE[] SEC("license") = "Dual BSD/GPL"; |
