From b145781d4986761ace10007642728c9b9e5562d5 Mon Sep 17 00:00:00 2001
From: kib <kib@FreeBSD.org>
Date: Fri, 19 Mar 2010 10:46:54 +0000
Subject: Properly handle compat32 calls to sctp generic sendmsd/recvmsg
 functions that take iov.

Reviewed by:	tuexen
MFC after:	2 weeks
---
 sys/kern/uipc_syscalls.c | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

(limited to 'sys/kern')

diff --git a/sys/kern/uipc_syscalls.c b/sys/kern/uipc_syscalls.c
index 4b9eb4e..a14be72 100644
--- a/sys/kern/uipc_syscalls.c
+++ b/sys/kern/uipc_syscalls.c
@@ -59,6 +59,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/mbuf.h>
 #include <sys/protosw.h>
 #include <sys/sf_buf.h>
+#include <sys/sysent.h>
 #include <sys/socket.h>
 #include <sys/socketvar.h>
 #include <sys/signalvar.h>
@@ -69,6 +70,9 @@ __FBSDID("$FreeBSD$");
 #ifdef KTRACE
 #include <sys/ktrace.h>
 #endif
+#ifdef COMPAT_FREEBSD32
+#include <compat/freebsd32/freebsd32_util.h>
+#endif
 
 #include <net/vnet.h>
 
@@ -2513,7 +2517,13 @@ sctp_generic_sendmsg_iov(td, uap)
 	if (error)
 		goto sctp_bad1;
 
-	error = copyiniov(uap->iov, uap->iovlen, &iov, EMSGSIZE);
+#ifdef COMPAT_FREEBSD32
+	if (SV_CURPROC_FLAG(SV_ILP32))
+		error = freebsd32_copyiniov((struct iovec32 *)uap->iov,
+		    uap->iovlen, &iov, EMSGSIZE);
+	else
+#endif
+		error = copyiniov(uap->iov, uap->iovlen, &iov, EMSGSIZE);
 	if (error)
 		goto sctp_bad1;
 #ifdef KTRACE
@@ -2615,10 +2625,15 @@ sctp_generic_recvmsg(td, uap)
 	if (error) {
 		return (error);
 	}
-	error = copyiniov(uap->iov, uap->iovlen, &iov, EMSGSIZE);
-	if (error) {
+#ifdef COMPAT_FREEBSD32
+	if (SV_CURPROC_FLAG(SV_ILP32))
+		error = freebsd32_copyiniov((struct iovec32 *)uap->iov,
+		    uap->iovlen, &iov, EMSGSIZE);
+	else
+#endif
+		error = copyiniov(uap->iov, uap->iovlen, &iov, EMSGSIZE);
+	if (error)
 		goto out1;
-	}
 
 	so = fp->f_data;
 #ifdef MAC
-- 
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