Module Name: src
Committed By: hannken
Date: Wed Jan 17 10:21:01 UTC 2024
Modified Files:
src/sys/miscfs/procfs: procfs_vfsops.c
Log Message:
Remove all procfs nodes for this process on process exit.
To generate a diff of this commit:
cvs rdiff -u -r1.113 -r1.114 src/sys/miscfs/procfs/procfs_vfsops.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/miscfs/procfs/procfs_vfsops.c
diff -u src/sys/miscfs/procfs/procfs_vfsops.c:1.113 src/sys/miscfs/procfs/procfs_vfsops.c:1.114
--- src/sys/miscfs/procfs/procfs_vfsops.c:1.113 Wed Jan 17 10:20:12 2024
+++ src/sys/miscfs/procfs/procfs_vfsops.c Wed Jan 17 10:21:01 2024
@@ -1,4 +1,4 @@
-/* $NetBSD: procfs_vfsops.c,v 1.113 2024/01/17 10:20:12 hannken Exp $ */
+/* $NetBSD: procfs_vfsops.c,v 1.114 2024/01/17 10:21:01 hannken Exp $ */
/*
* Copyright (c) 1993
@@ -76,7 +76,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: procfs_vfsops.c,v 1.113 2024/01/17 10:20:12 hannken Exp $");
+__KERNEL_RCSID(0, "$NetBSD: procfs_vfsops.c,v 1.114 2024/01/17 10:21:01 hannken Exp $");
#if defined(_KERNEL_OPT)
#include "opt_compat_netbsd.h"
@@ -112,9 +112,12 @@ MODULE(MODULE_CLASS_VFS, procfs, "ptrace
VFS_PROTOS(procfs);
#define PROCFS_HASHSIZE 256
+#define PROCFS_EXEC_HOOK ((void *)1)
+#define PROCFS_EXIT_HOOK ((void *)2)
static kauth_listener_t procfs_listener;
static void *procfs_exechook;
+static void *procfs_exithook;
LIST_HEAD(hashhead, pfsnode);
static u_long procfs_hashmask;
static struct hashhead *procfs_hashtab;
@@ -522,7 +525,7 @@ procfs_exechook_cb(struct proc *p, void
struct vnode *vp;
int error;
- if (!(p->p_flag & PK_SUGID))
+ if (arg == PROCFS_EXEC_HOOK && !(p->p_flag & PK_SUGID))
return;
head = procfs_hashhead(p->p_pid);
@@ -616,7 +619,10 @@ procfs_modcmd(modcmd_t cmd, void *arg)
procfs_listener = kauth_listen_scope(KAUTH_SCOPE_PROCESS,
procfs_listener_cb, NULL);
- procfs_exechook = exechook_establish(procfs_exechook_cb, NULL);
+ procfs_exechook = exechook_establish(procfs_exechook_cb,
+ PROCFS_EXEC_HOOK);
+ procfs_exithook = exithook_establish(procfs_exechook_cb,
+ PROCFS_EXIT_HOOK);
mutex_init(&procfs_hashlock, MUTEX_DEFAULT, IPL_NONE);
procfs_hashtab = hashinit(PROCFS_HASHSIZE, HASH_LIST, true,
@@ -629,6 +635,7 @@ procfs_modcmd(modcmd_t cmd, void *arg)
break;
kauth_unlisten_scope(procfs_listener);
exechook_disestablish(procfs_exechook);
+ exithook_disestablish(procfs_exithook);
mutex_destroy(&procfs_hashlock);
hashdone(procfs_hashtab, HASH_LIST, procfs_hashmask);
break;
