From e9d47f072530ec012ed78fcf581356f620343602 Mon Sep 17 00:00:00 2001
From: Furisto <24721048+Furisto@users.noreply.github.com>
Date: Mon, 6 Sep 2021 11:25:17 +0200
Subject: [PATCH] Bump procfs

---
 Cargo.lock                      |  4 +--
 Cargo.toml                      |  2 +-
 cgroups/Cargo.toml              |  2 +-
 src/container/tenant_builder.rs | 63 ++-------------------------------
 4 files changed, 6 insertions(+), 65 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 78707770..3632c5e9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -709,9 +709,9 @@ dependencies = [
 
 [[package]]
 name = "procfs"
-version = "0.9.1"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab8809e0c18450a2db0f236d2a44ec0b4c1412d0eb936233579f0990faa5d5cd"
+checksum = "95e344cafeaeefe487300c361654bcfc85db3ac53619eeccced29f5ea18c4c70"
 dependencies = [
  "bitflags",
  "byteorder",
diff --git a/Cargo.toml b/Cargo.toml
index fe7aa624..523e8109 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ features = ["std", "suggestions", "derive"]
 
 [dependencies]
 nix = "0.22.0"
-procfs = "0.9.1"
+procfs = "0.10.1"
 # Waiting for new caps release, replace git with version on release
 caps = { git = "https://github.com/lucab/caps-rs", rev = "cb54844", features = ["serde_support"] }
 serde = { version = "1.0", features = ["derive"] }
diff --git a/cgroups/Cargo.toml b/cgroups/Cargo.toml
index ab44ea53..ae20fe31 100644
--- a/cgroups/Cargo.toml
+++ b/cgroups/Cargo.toml
@@ -11,7 +11,7 @@ cgroupsv2_devices = ["rbpf", "libbpf-sys", "errno", "libc"]
 
 [dependencies]
 nix = "0.22.0"
-procfs = "0.9.1"
+procfs = "0.10.1"
 log = "0.4"
 anyhow = "1.0"
 oci_spec = { git = "https://github.com/containers/oci-spec-rs", rev = "e0de21b89dc1e65f69a5f45a08bbe426787c7fa1"}
diff --git a/src/container/tenant_builder.rs b/src/container/tenant_builder.rs
index 1c159f52..7ee9e28e 100644
--- a/src/container/tenant_builder.rs
+++ b/src/container/tenant_builder.rs
@@ -2,13 +2,13 @@ use anyhow::{bail, Context, Result};
 use caps::Capability;
 use nix::unistd;
 use oci_spec::{LinuxCapabilities, LinuxNamespace, LinuxNamespaceType, Process, Spec};
+use procfs::process::Namespace;
 
 use std::{
     collections::HashMap,
     convert::TryFrom,
-    ffi::{CString, OsString},
     fs,
-    os::unix::prelude::{OsStrExt, RawFd},
+    os::unix::prelude::{RawFd},
     path::{Path, PathBuf},
     str::FromStr,
 };
@@ -353,62 +353,3 @@ impl TenantContainerBuilder {
         }
     }
 }
-
-// Can be removed once https://github.com/eminence/procfs/pull/135 is available
-trait GetNamespace {
-    fn namespaces(&self) -> Result<Vec<Namespace>>;
-}
-
-impl GetNamespace for procfs::process::Process {
-    /// Describes namespaces to which the process with the corresponding PID belongs.
-    /// Doc reference: https://man7.org/linux/man-pages/man7/namespaces.7.html
-    fn namespaces(&self) -> Result<Vec<Namespace>> {
-        let proc_path = PathBuf::from(format!("/proc/{}", self.pid()));
-        let ns = proc_path.join("ns");
-        let mut namespaces = Vec::new();
-        for entry in fs::read_dir(ns)? {
-            let entry = entry?;
-            let path = entry.path();
-            let ns_type = entry.file_name();
-            let cstr = CString::new(path.as_os_str().as_bytes()).unwrap();
-
-            let mut stat = unsafe { std::mem::zeroed() };
-            if unsafe { libc::stat(cstr.as_ptr(), &mut stat) } != 0 {
-                bail!("Unable to stat {:?}", path);
-            }
-
-            namespaces.push(Namespace {
-                ns_type,
-                path,
-                identifier: stat.st_ino,
-                device_id: stat.st_dev,
-            })
-        }
-
-        Ok(namespaces)
-    }
-}
-
-/// Information about a namespace
-///
-/// See also the [Process::namespaces()] method
-#[derive(Debug, Clone)]
-pub struct Namespace {
-    /// Namespace type
-    pub ns_type: OsString,
-    /// Handle to the namespace
-    pub path: PathBuf,
-    /// Namespace identifier (inode number)
-    pub identifier: u64,
-    /// Device id of the namespace
-    pub device_id: u64,
-}
-
-impl PartialEq for Namespace {
-    fn eq(&self, other: &Self) -> bool {
-        // see https://lore.kernel.org/lkml/87poky5ca9.fsf@xmission.com/
-        self.identifier == other.identifier && self.device_id == other.device_id
-    }
-}
-
-impl Eq for Namespace {}