From patchwork Fri Apr 3 18:06:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexey Gladkov X-Patchwork-Id: 11473321 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9AD4817EA for ; Fri, 3 Apr 2020 18:17:56 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id B64D9206F5 for ; Fri, 3 Apr 2020 18:17:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B64D9206F5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-18412-patchwork-kernel-hardening=patchwork.kernel.org@lists.openwall.com Received: (qmail 30135 invoked by uid 550); 3 Apr 2020 18:17:53 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Delivered-To: mailing list kernel-hardening@lists.openwall.com Received: (qmail 30104 invoked from network); 3 Apr 2020 18:17:52 -0000 From: Alexey Gladkov To: LKML Cc: Kernel Hardening , Linux API , Linux FS Devel , Linux Security Module , Akinobu Mita , Alexander Viro , Alexey Dobriyan , Alexey Gladkov , Andrew Morton , Andy Lutomirski , Daniel Micay , Djalal Harouni , "Dmitry V . Levin" , "Eric W . Biederman" , Greg Kroah-Hartman , Ingo Molnar , "J . Bruce Fields" , Jeff Layton , Jonathan Corbet , Kees Cook , Linus Torvalds , Oleg Nesterov , David Howells Subject: [PATCH v11 8/8] proc: use named enums for better readability Date: Fri, 3 Apr 2020 20:06:48 +0200 Message-Id: <20200403180648.721362-9-gladkov.alexey@gmail.com> X-Mailer: git-send-email 2.25.2 In-Reply-To: <20200403180648.721362-1-gladkov.alexey@gmail.com> References: <20200403180648.721362-1-gladkov.alexey@gmail.com> MIME-Version: 1.0 X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.1 (raptor.unsafe.ru [5.9.43.93]); Fri, 03 Apr 2020 18:07:31 +0000 (UTC) Signed-off-by: Alexey Gladkov Reviewed-by: Alexey Dobriyan Reviewed-by: Kees Cook --- fs/proc/base.c | 2 +- fs/proc/inode.c | 2 +- fs/proc/root.c | 4 ++-- include/linux/proc_fs.h | 8 ++++---- 4 files changed, 8 insertions(+), 8 deletions(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 1ebe9eba48ea..2f2f7b36c947 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -699,7 +699,7 @@ int proc_setattr(struct dentry *dentry, struct iattr *attr) */ static bool has_pid_permissions(struct proc_fs_info *fs_info, struct task_struct *task, - int hide_pid_min) + enum proc_hidepid hide_pid_min) { /* * If 'hidpid' mount option is set force a ptrace check, diff --git a/fs/proc/inode.c b/fs/proc/inode.c index d38a9e592352..8f3681723108 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -166,7 +166,7 @@ void proc_invalidate_siblings_dcache(struct hlist_head *inodes, spinlock_t *lock deactivate_super(old_sb); } -static inline const char *hidepid2str(int v) +static inline const char *hidepid2str(enum proc_hidepid v) { switch (v) { case HIDEPID_OFF: return "off"; diff --git a/fs/proc/root.c b/fs/proc/root.c index c6caae9e4308..9d6ce3710f4f 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -32,9 +32,9 @@ struct proc_fs_context { struct proc_fs_info *fs_info; unsigned int mask; - int hidepid; + enum proc_hidepid hidepid; int gid; - int pidonly; + enum proc_pidonly pidonly; }; enum proc_param { diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index afd38cae2339..3701f49eb299 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -28,7 +28,7 @@ struct proc_ops { }; /* definitions for hide_pid field */ -enum { +enum proc_hidepid { HIDEPID_OFF = 0, HIDEPID_NO_ACCESS = 1, HIDEPID_INVISIBLE = 2, @@ -36,7 +36,7 @@ enum { }; /* definitions for proc mount option pidonly */ -enum { +enum proc_pidonly { PROC_PIDONLY_OFF = 0, PROC_PIDONLY_ON = 1, }; @@ -46,8 +46,8 @@ struct proc_fs_info { struct dentry *proc_self; /* For /proc/self */ struct dentry *proc_thread_self; /* For /proc/thread-self */ kgid_t pid_gid; - int hide_pid; - int pidonly; + enum proc_hidepid hide_pid; + enum proc_pidonly pidonly; }; static inline struct proc_fs_info *proc_sb_info(struct super_block *sb)