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path: root/vendor/rustix/src/backend/linux_raw/net/netdevice.rs
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Diffstat (limited to 'vendor/rustix/src/backend/linux_raw/net/netdevice.rs')
-rw-r--r--vendor/rustix/src/backend/linux_raw/net/netdevice.rs70
1 files changed, 0 insertions, 70 deletions
diff --git a/vendor/rustix/src/backend/linux_raw/net/netdevice.rs b/vendor/rustix/src/backend/linux_raw/net/netdevice.rs
deleted file mode 100644
index d3c2a964..00000000
--- a/vendor/rustix/src/backend/linux_raw/net/netdevice.rs
+++ /dev/null
@@ -1,70 +0,0 @@
-//! Wrappers for netdevice ioctls.
-
-#![allow(unsafe_code)]
-
-use crate::backend::io::syscalls::ioctl;
-use crate::fd::BorrowedFd;
-use crate::io;
-use core::ptr::addr_of_mut;
-use core::{slice, str};
-use linux_raw_sys::ctypes::c_char;
-use linux_raw_sys::ioctl::SIOCGIFINDEX;
-#[cfg(feature = "alloc")]
-use linux_raw_sys::ioctl::SIOCGIFNAME;
-use linux_raw_sys::net::{ifreq, ifreq__bindgen_ty_1, ifreq__bindgen_ty_2, IFNAMSIZ};
-#[cfg(feature = "alloc")]
-use {alloc::borrow::ToOwned, alloc::string::String};
-
-pub(crate) fn name_to_index(fd: BorrowedFd<'_>, if_name: &str) -> io::Result<u32> {
- let if_name_bytes = if_name.as_bytes();
- if if_name_bytes.len() >= IFNAMSIZ as usize {
- return Err(io::Errno::NODEV);
- }
- if if_name_bytes.contains(&0) {
- return Err(io::Errno::NODEV);
- }
-
- // SAFETY: Convert `&[u8]` to `&[c_char]`.
- let if_name_bytes = unsafe {
- slice::from_raw_parts(if_name_bytes.as_ptr().cast::<c_char>(), if_name_bytes.len())
- };
-
- let mut ifreq = ifreq {
- ifr_ifrn: ifreq__bindgen_ty_1 { ifrn_name: [0; 16] },
- ifr_ifru: ifreq__bindgen_ty_2 { ifru_ivalue: 0 },
- };
- unsafe { ifreq.ifr_ifrn.ifrn_name[..if_name_bytes.len()].copy_from_slice(if_name_bytes) };
-
- unsafe { ioctl(fd, SIOCGIFINDEX, addr_of_mut!(ifreq).cast()) }?;
- let index = unsafe { ifreq.ifr_ifru.ifru_ivalue };
- Ok(index as u32)
-}
-
-#[cfg(feature = "alloc")]
-pub(crate) fn index_to_name(fd: BorrowedFd<'_>, index: u32) -> io::Result<String> {
- let mut ifreq = ifreq {
- ifr_ifrn: ifreq__bindgen_ty_1 { ifrn_name: [0; 16] },
- ifr_ifru: ifreq__bindgen_ty_2 {
- ifru_ivalue: index as _,
- },
- };
-
- unsafe { ioctl(fd, SIOCGIFNAME, addr_of_mut!(ifreq).cast()) }?;
-
- if let Some(nul_byte) = unsafe { ifreq.ifr_ifrn.ifrn_name }
- .iter()
- .position(|ch| *ch == 0)
- {
- let ifrn_name = unsafe { &ifreq.ifr_ifrn.ifrn_name[..nul_byte] };
-
- // SAFETY: Convert `&[c_char]` to `&[u8]`.
- let ifrn_name =
- unsafe { slice::from_raw_parts(ifrn_name.as_ptr().cast::<u8>(), ifrn_name.len()) };
-
- str::from_utf8(ifrn_name)
- .map_err(|_| io::Errno::ILSEQ)
- .map(ToOwned::to_owned)
- } else {
- Err(io::Errno::INVAL)
- }
-}