patch-2.4.18 linux/arch/s390x/kernel/ioctl32.c

• Lines: 67
• Date: Fri Dec 21 16:25:30 2001
• Orig file: linux.orig/arch/s390x/kernel/ioctl32.c
• Orig date: Mon Feb 18 20:18:39 2002

diff -Naur -X /home/marcelo/lib/dontdiff linux.orig/arch/s390x/kernel/ioctl32.c linux/arch/s390x/kernel/ioctl32.c
@@ -24,6 +24,7 @@
 #include <linux/route.h>
 #include <linux/ext2_fs.h>
 #include <linux/hdreg.h>
+#include <linux/if_bonding.h>
 #include <asm/types.h>
 #include <asm/uaccess.h>
 #include <asm/dasd.h>
@@ -195,6 +196,58 @@
 out:
 	if(ifc.ifc_buf != NULL)
 		kfree (ifc.ifc_buf);
+	return err;
+}
+
+static int bond_ioctl(unsigned long fd, unsigned int cmd, unsigned long arg)
+{
+	struct ifreq ifr;
+	mm_segment_t old_fs;
+	int err, len;
+	u32 data;
+	
+	if (copy_from_user(&ifr, (struct ifreq32 *)arg, sizeof(struct ifreq32)))
+		return -EFAULT;
+	ifr.ifr_data = (__kernel_caddr_t)get_free_page(GFP_KERNEL);
+	if (!ifr.ifr_data)
+		return -EAGAIN;
+
+	switch (cmd) {
+	case SIOCBONDENSLAVE:
+	case SIOCBONDRELEASE:
+	case SIOCBONDSETHWADDR:
+	case SIOCBONDCHANGEACTIVE:
+		len = IFNAMSIZ * sizeof(char);
+		break;
+	case SIOCBONDSLAVEINFOQUERY:
+		len = sizeof(struct ifslave);
+		break;
+	case SIOCBONDINFOQUERY:
+		len = sizeof(struct ifbond);
+		break;
+	default:
+		err = -EINVAL;
+		goto out;
+	};
+
+	__get_user(data, &(((struct ifreq32 *)arg)->ifr_ifru.ifru_data));
+	if (copy_from_user(ifr.ifr_data, (char *)A(data), len)) {
+		err = -EFAULT;
+		goto out;
+	}
+
+	old_fs = get_fs();
+	set_fs (KERNEL_DS);
+	err = sys_ioctl (fd, cmd, (unsigned long)&ifr);
+	set_fs (old_fs);
+	if (!err) {
+		len = copy_to_user((char *)A(data), ifr.ifr_data, len);
+		if (len)
+			err = -EFAULT;
+	}
+
+out:
+	free_page((unsigned long)ifr.ifr_data);
 	return err;
 }