From d104f11c3989b0bbe1216f6ad663d0ed91fb7bd8 Mon Sep 17 00:00:00 2001
From: Kyle McMartin <kyle@athena.road.mcmartin.ca>
Date: Thu, 8 Feb 2007 19:38:54 -0500
Subject: [PATCH] [PARISC] fix sys_rt_sigqueueinfo
the parisc affecting portion of the patch was inadvertantly
reverted a while ago.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---
arch/parisc/kernel/signal32.c | 21 +++++++++++++++++++++
arch/parisc/kernel/syscall_table.S | 2 +-
2 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index a6b4231cafa1..2cbb4af15a19 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -1,6 +1,8 @@
/* Signal support for 32-bit kernel builds
*
* Copyright (C) 2001 Matthew Wilcox <willy at parisc-linux.org>
+ * Copyright (C) 2006 Kyle McMartin <kyle at parisc-linux.org>
+ *
* Code was mostly borrowed from kernel/signal.c.
* See kernel/signal.c for additional Copyrights.
*
@@ -498,3 +500,22 @@ copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from)
}
return err;
}
+
+asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
+ struct compat_siginfo __user *uinfo)
+{
+ siginfo_t info;
+
+ if (copy_siginfo_from_user32(&info, uinfo))
+ return -EFAULT;
+
+ /* Not even root can pretend to send signals from the kernel.
+ Nor can they impersonate a kill(), which adds source info. */
+ if (info.si_code >= 0)
+ return -EPERM;
+ info.si_signo = sig;
+
+ /* POSIX.1b doesn't mention process groups. */
+ return kill_proc_info(sig, &info, pid);
+}
+
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 7651e54ddbbb..511466611e96 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -282,7 +282,7 @@
* to worry about faulting trying to copy in a larger 64-bit
* struct from a 32-bit user-space app.
*/
- ENTRY_SAME(rt_sigqueueinfo)
+ ENTRY_COMP(rt_sigqueueinfo)
ENTRY_COMP(rt_sigsuspend)
ENTRY_SAME(chown) /* 180 */
/* setsockopt() used by iptables: SO_SET_REPLACE/SO_SET_ADD_COUNTERS */
--
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