patch-2.4.0-test7 linux/arch/sparc64/kernel/sys_sparc32.c

• Lines: 236
• Date: Wed Aug 23 09:30:13 2000
• Orig file: v2.4.0-test6/linux/arch/sparc64/kernel/sys_sparc32.c
• Orig date: Wed Aug 9 19:19:49 2000

diff -u --recursive --new-file v2.4.0-test6/linux/arch/sparc64/kernel/sys_sparc32.c linux/arch/sparc64/kernel/sys_sparc32.c
@@ -1,4 +1,4 @@
-/* $Id: sys_sparc32.c,v 1.159 2000/08/08 02:47:50 davem Exp $
+/* $Id: sys_sparc32.c,v 1.163 2000/08/22 10:09:10 jj Exp $
  * sys_sparc32.c: Conversion between 32bit and 64bit native syscalls.
  *
  * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
@@ -45,6 +45,10 @@
 #include <linux/highmem.h>
 #include <linux/highuid.h>
 #include <linux/mman.h>
+#include <linux/ipv6.h>
+#include <linux/in.h>
+#include <linux/icmpv6.h>
+#include <linux/sysctl.h>
 
 #include <asm/types.h>
 #include <asm/ipc.h>
@@ -866,15 +870,27 @@
 			old_fs = get_fs(); set_fs (KERNEL_DS);
 			ret = sys_fcntl(fd, cmd, (unsigned long)&f);
 			set_fs (old_fs);
+			if (ret) return ret;
+			if (f.l_start >= 0x7fffffffUL ||
+			    f.l_len >= 0x7fffffffUL ||
+			    f.l_start + f.l_len >= 0x7fffffffUL)
+				return -EOVERFLOW;
 			if(put_flock(&f, (struct flock32 *)arg))
 				return -EFAULT;
-			return ret;
+			return 0;
 		}
 	default:
 		return sys_fcntl(fd, cmd, (unsigned long)arg);
 	}
 }
 
+asmlinkage long sys32_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg)
+{
+	if (cmd >= F_GETLK64 && cmd <= F_SETLKW64)
+		return sys_fcntl(fd, cmd + F_GETLK - F_GETLK64, arg);
+	return sys32_fcntl(fd, cmd, arg);
+}
+
 struct dqblk32 {
     __u32 dqb_bhardlimit;
     __u32 dqb_bsoftlimit;
@@ -1180,7 +1196,7 @@
 };
 
 static int fillonedir(void * __buf, const char * name, int namlen,
-		      off_t offset, ino_t ino)
+		      off_t offset, ino_t ino, unsigned int d_type)
 {
 	struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
 	struct old_linux_dirent32 * dirent;
@@ -1235,7 +1251,8 @@
 	int error;
 };
 
-static int filldir(void * __buf, const char * name, int namlen, off_t offset, ino_t ino)
+static int filldir(void * __buf, const char * name, int namlen, off_t offset, ino_t ino,
+		   unsigned int d_type)
 {
 	struct linux_dirent32 * dirent;
 	struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf;
@@ -2699,42 +2716,86 @@
 extern asmlinkage int sys_setsockopt(int fd, int level, int optname,
 				     char *optval, int optlen);
 
-asmlinkage int sys32_setsockopt(int fd, int level, int optname,
+static int do_set_attach_filter(int fd, int level, int optname,
 				char *optval, int optlen)
 {
-	if (optname == SO_ATTACH_FILTER) {
-		struct sock_fprog32 {
-			__u16 len;
-			__u32 filter;
-		} *fprog32 = (struct sock_fprog32 *)optval;
-		struct sock_fprog kfprog;
-		struct sock_filter *kfilter;
-		unsigned int fsize;
-		mm_segment_t old_fs;
-		__u32 uptr;
-		int ret;
+	struct sock_fprog32 {
+		__u16 len;
+		__u32 filter;
+	} *fprog32 = (struct sock_fprog32 *)optval;
+	struct sock_fprog kfprog;
+	struct sock_filter *kfilter;
+	unsigned int fsize;
+	mm_segment_t old_fs;
+	__u32 uptr;
+	int ret;
 
-		if (get_user(kfprog.len, &fprog32->len) ||
-		    __get_user(uptr, &fprog32->filter))
-			return -EFAULT;
-		kfprog.filter = (struct sock_filter *)A(uptr);
-		fsize = kfprog.len * sizeof(struct sock_filter);
-		kfilter = (struct sock_filter *)kmalloc(fsize, GFP_KERNEL);
-		if (kfilter == NULL)
-			return -ENOMEM;
-		if (copy_from_user(kfilter, kfprog.filter, fsize)) {
-			kfree(kfilter);
-			return -EFAULT;
-		}
-		kfprog.filter = kfilter;
-		old_fs = get_fs();
-		set_fs(KERNEL_DS);
-		ret = sys_setsockopt(fd, level, optname,
-				     (char *)&kfprog, sizeof(kfprog));
-		set_fs(old_fs);
+	if (get_user(kfprog.len, &fprog32->len) ||
+	    __get_user(uptr, &fprog32->filter))
+		return -EFAULT;
+
+	kfprog.filter = (struct sock_filter *)A(uptr);
+	fsize = kfprog.len * sizeof(struct sock_filter);
+
+	kfilter = (struct sock_filter *)kmalloc(fsize, GFP_KERNEL);
+	if (kfilter == NULL)
+		return -ENOMEM;
+
+	if (copy_from_user(kfilter, kfprog.filter, fsize)) {
 		kfree(kfilter);
-		return ret;
+		return -EFAULT;
+	}
+
+	kfprog.filter = kfilter;
+
+	old_fs = get_fs();
+	set_fs(KERNEL_DS);
+	ret = sys_setsockopt(fd, level, optname,
+			     (char *)&kfprog, sizeof(kfprog));
+	set_fs(old_fs);
+
+	kfree(kfilter);
+
+	return ret;
+}
+
+static int do_set_icmpv6_filter(int fd, int level, int optname,
+				char *optval, int optlen)
+{
+	struct icmp6_filter kfilter;
+	mm_segment_t old_fs;
+	int ret, i;
+
+	if (copy_from_user(&kfilter, optval, sizeof(kfilter)))
+		return -EFAULT;
+
+
+	for (i = 0; i < 8; i += 2) {
+		u32 tmp = kfilter.data[i];
+
+		kfilter.data[i] = kfilter.data[i + 1];
+		kfilter.data[i + 1] = tmp;
 	}
+
+	old_fs = get_fs();
+	set_fs(KERNEL_DS);
+	ret = sys_setsockopt(fd, level, optname,
+			     (char *) &kfilter, sizeof(kfilter));
+	set_fs(old_fs);
+
+	return ret;
+}
+
+asmlinkage int sys32_setsockopt(int fd, int level, int optname,
+				char *optval, int optlen)
+{
+	if (optname == SO_ATTACH_FILTER)
+		return do_set_attach_filter(fd, level, optname,
+					    optval, optlen);
+	if (level == SOL_ICMPV6 && optname == ICMPV6_FILTER)
+		return do_set_icmpv6_filter(fd, level, optname,
+					    optval, optlen);
+
 	return sys_setsockopt(fd, level, optname, optval, optlen);
 }
 
@@ -4100,4 +4161,52 @@
 	return sys_setpriority((int) which,
 			       (int) who,
 			       (int) niceval);
+}
+
+struct __sysctl_args32 {
+	u32 name;
+	int nlen;
+	u32 oldval;
+	u32 oldlenp;
+	u32 newval;
+	u32 newlen;
+	u32 __unused[4];
+};
+
+extern asmlinkage long sys32_sysctl(struct __sysctl_args32 *args)
+{
+	struct __sysctl_args32 tmp;
+	int error;
+	size_t oldlen, *oldlenp = NULL;
+	unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
+
+	if (copy_from_user(&tmp, args, sizeof(tmp)))
+		return -EFAULT;
+
+	if (tmp.oldval && tmp.oldlenp) {
+		/* Duh, this is ugly and might not work if sysctl_args
+		   is in read-only memory, but do_sysctl does indirectly
+		   a lot of uaccess in both directions and we'd have to
+		   basically copy the whole sysctl.c here, and
+		   glibc's __sysctl uses rw memory for the structure
+		   anyway.  */
+		if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
+		    put_user(oldlen, (size_t *)addr))
+			return -EFAULT;
+		oldlenp = (size_t *)addr;
+	}
+
+	lock_kernel();
+	error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
+			  oldlenp, (void *)A(tmp.newval), tmp.newlen);
+	unlock_kernel();
+	if (oldlenp) {
+		if (!error) {
+			if (get_user(oldlen, (size_t *)addr) ||
+			    put_user(oldlen, (u32 *)A(tmp.oldlenp)))
+				error = -EFAULT;
+		}
+		copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
+	}
+	return error;
 }