linux-kernel - [patch 5/13] signal/timer/event fds v6

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>] [day] [month] [year] [list]

Message-ID: <send-serie.davidel@xmailserver.org.9367.1174004538.5>
Date:	Thu, 15 Mar 2007 17:22:15 -0700
From:	Davide Libenzi <davidel@...ilserver.org>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Oleg Nesterov <oleg@...sign.ru>
Subject: [patch 5/13] signal/timer/event fds v6 - signalfd compat code ...

This patch implement the necessary compat code for the signalfd system call.


Signed-off-by: Davide Libenzi <davidel@...ilserver.org>


- Davide



Index: linux-2.6.21-rc3.quilt/fs/compat.c
===================================================================
--- linux-2.6.21-rc3.quilt.orig/fs/compat.c	2007-02-04 10:44:54.000000000 -0800
+++ linux-2.6.21-rc3.quilt/fs/compat.c	2007-03-15 15:35:58.000000000 -0700
@@ -46,6 +46,7 @@
 #include <linux/rwsem.h>
 #include <linux/tsacct_kern.h>
 #include <linux/highmem.h>
+#include <linux/signal.h>
 #include <linux/poll.h>
 #include <linux/mm.h>
 
@@ -2235,3 +2236,24 @@
 	return sys_ni_syscall();
 }
 #endif
+
+asmlinkage long compat_sys_signalfd(int ufd,
+				    const compat_sigset_t __user *sigmask,
+				    compat_size_t sigsetsize)
+{
+	compat_sigset_t ss32;
+	sigset_t tmp;
+	sigset_t __user *ksigmask;
+
+	if (sigsetsize != sizeof(compat_sigset_t))
+		return -EINVAL;
+	if (copy_from_user(&ss32, sigmask, sizeof(ss32)))
+		return -EFAULT;
+	sigset_from_compat(&tmp, &ss32);
+	ksigmask = compat_alloc_user_space(sizeof(sigset_t));
+	if (copy_to_user(ksigmask, &tmp, sizeof(sigset_t)))
+		return -EFAULT;
+
+	return sys_signalfd(ufd, ksigmask, sizeof(sigset_t));
+}
+

-
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/