linux-kernel - [PATCH -v2 16/16] fanotify: send file f

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20081014205254.1057.26828.stgit@paris.rdu.redhat.com>
Date:	Tue, 14 Oct 2008 16:52:54 -0400
From:	Eric Paris <eparis@...hat.com>
To:	linux-kernel@...r.kernel.org, malware-list@...ts.printk.net
Cc:	viro@...IV.linux.org.uk, alan@...rguk.ukuu.org.uk,
	arjan@...radead.org, greg@...ah.com, tytso@....edu
Subject: [PATCH -v2 16/16] fanotify: send file f_flags along with notifications

fanotify listeners may be interested in what flags the file associated with
a particular event were set.  This sends f_flags along with the event
metadata.

Signed-off-by: Eric Paris <eparis@...hat.com>
---

 fs/notify/fanotify.h     |    1 +
 fs/notify/notification.c |    2 ++
 include/linux/fanotify.h |    1 +
 3 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/fs/notify/fanotify.h b/fs/notify/fanotify.h
index b45c145..5f774bd 100644
--- a/fs/notify/fanotify.h
+++ b/fs/notify/fanotify.h
@@ -50,6 +50,7 @@ struct fanotify_event {
 	unsigned long cookie;
 	pid_t pid;		/* pid of the original process */
 	pid_t tgid;		/* tgid of the original process */
+	unsigned int f_flags;	/* f_flags from the original file */
 	spinlock_t response_lock; /* protects response */
 	unsigned int response;	/* userspace answer to question */
 };
diff --git a/fs/notify/notification.c b/fs/notify/notification.c
index acd13b0..4d1d046 100644
--- a/fs/notify/notification.c
+++ b/fs/notify/notification.c
@@ -183,6 +183,7 @@ struct fanotify_event *create_event(struct file *file, unsigned int mask)
 
 	event->pid = current->pid;
 	event->tgid = current->tgid;
+	event->f_flags = file->f_flags;
 
 	WARN_ON(!event->path.dentry);
 	WARN_ON(!event->path.mnt);
@@ -250,6 +251,7 @@ int fanotify_create_event_fd(struct fanotify_group *group, struct fanotify_event
 	data->cookie = event->cookie;
 	data->pid = event->pid;
 	data->tgid = event->tgid;
+	data->f_flags = event->f_flags;
 
 	fanotify_put_event(event);
 
diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index 711efa6..cecac79 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -73,6 +73,7 @@ struct fanotify_event_metadata {
 	uint64_t cookie;
 	pid_t pid;
 	pid_t tgid;
+	uint32_t f_flags;
 };
 
 /* fanotify getsockopt optvals */

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/