From 479b342347c89ff0eb4836ab7bce35216e1f60ca Mon Sep 17 00:00:00 2001 From: Xiaobo Liu Date: Sat, 23 Aug 2025 17:42:14 +0800 Subject: [PATCH] ebpf: add bpf_d_path helper function Signed-off-by: Xiaobo Liu --- ebpf/aya-ebpf/src/helpers.rs | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/ebpf/aya-ebpf/src/helpers.rs b/ebpf/aya-ebpf/src/helpers.rs index be009e90..c0fea236 100644 --- a/ebpf/aya-ebpf/src/helpers.rs +++ b/ebpf/aya-ebpf/src/helpers.rs @@ -15,7 +15,7 @@ use core::{ mem::{self, MaybeUninit}, }; -pub use aya_ebpf_bindings::helpers as generated; +pub use aya_ebpf_bindings::{bindings::path, helpers as generated}; #[doc(hidden)] pub use generated::*; @@ -842,3 +842,14 @@ pub fn bpf_strncmp(s1: &[u8; N], s2: &CStr) -> Ordering { unsafe { generated::bpf_strncmp(s1.as_ptr() as *const _, N as u32, s2.as_ptr() as *const _) } .cmp(&0) } + +#[inline] +pub unsafe fn bpf_d_path(path: *const path, dest: &mut [u8]) -> Result<&[u8], c_long> { + let len = generated::bpf_d_path( + path as *mut path, + dest.as_mut_ptr() as *mut _, + dest.len() as u32, + ); + + read_str_bytes(len, dest) +}