diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_d_path.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_d_path.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_d_path.c b/tools/testing/selftests/bpf/progs/test_d_path.c index 84e1f883f97b..561b2f861808 100644 --- a/tools/testing/selftests/bpf/progs/test_d_path.c +++ b/tools/testing/selftests/bpf/progs/test_d_path.c @@ -17,6 +17,7 @@ int rets_close[MAX_FILES] = {}; int called_stat = 0; int called_close = 0; +int path_match_fallocate = 0; SEC("fentry/security_inode_getattr") int BPF_PROG(prog_stat, struct path *path, struct kstat *stat, @@ -62,4 +63,26 @@ int BPF_PROG(prog_close, struct file *file, void *id) return 0; } +SEC("fentry/vfs_fallocate") +int BPF_PROG(prog_fallocate, struct file *file, int mode, loff_t offset, loff_t len) +{ + pid_t pid = bpf_get_current_pid_tgid() >> 32; + int ret = 0; + char path_fallocate[MAX_PATH_LEN] = {}; + + if (pid != my_pid) + return 0; + + ret = bpf_d_path(&file->f_path, + path_fallocate, MAX_PATH_LEN); + if (ret < 0) + return 0; + + if (!path_fallocate[0]) + return 0; + + path_match_fallocate = 1; + return 0; +} + char _license[] SEC("license") = "GPL"; |