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51 lines
1.1 KiB
51 lines
1.1 KiB
#define _GNU_SOURCE |
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#include <stdio.h> |
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#include <unistd.h> |
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#include <bpf/libbpf.h> |
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int main(int argc, char **argv) |
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{ |
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struct bpf_link *link = NULL; |
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struct bpf_program *prog; |
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struct bpf_object *obj; |
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char filename[256]; |
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char command[256]; |
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int ret = 0; |
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FILE *f; |
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snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); |
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obj = bpf_object__open_file(filename, NULL); |
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if (libbpf_get_error(obj)) { |
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fprintf(stderr, "ERROR: opening BPF object file failed\n"); |
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return 0; |
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} |
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prog = bpf_object__find_program_by_name(obj, "bpf_prog1"); |
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if (!prog) { |
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fprintf(stderr, "ERROR: finding a prog in obj file failed\n"); |
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goto cleanup; |
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} |
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/* load BPF program */ |
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if (bpf_object__load(obj)) { |
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fprintf(stderr, "ERROR: loading BPF object file failed\n"); |
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goto cleanup; |
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} |
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link = bpf_program__attach(prog); |
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if (libbpf_get_error(link)) { |
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fprintf(stderr, "ERROR: bpf_program__attach failed\n"); |
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link = NULL; |
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goto cleanup; |
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} |
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snprintf(command, 256, "mount %s tmpmnt/", argv[1]); |
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f = popen(command, "r"); |
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ret = pclose(f); |
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cleanup: |
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bpf_link__destroy(link); |
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bpf_object__close(obj); |
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return ret ? 0 : 1; |
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}
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