patch-2.1.43 linux/arch/sparc64/kernel/ioctl32.c

• Lines: 536
• Date: Thu Jun 12 16:22:05 1997
• Orig file: v2.1.42/linux/arch/sparc64/kernel/ioctl32.c
• Orig date: Thu May 29 21:53:04 1997

diff -u --recursive --new-file v2.1.42/linux/arch/sparc64/kernel/ioctl32.c linux/arch/sparc64/kernel/ioctl32.c
@@ -1,4 +1,4 @@
-/* $Id: ioctl32.c,v 1.3 1997/05/27 19:30:13 jj Exp $
+/* $Id: ioctl32.c,v 1.8 1997/06/04 13:05:15 jj Exp $
  * ioctl32.c: Conversion between 32bit and 64bit native ioctls.
  *
  * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
@@ -7,22 +7,369 @@
  * ioctls.
  */
 
+#include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
 #include <linux/ioctl.h>
+#include <linux/if.h>
+#include <linux/malloc.h>
+#include <linux/hdreg.h>
+#include <linux/md.h>
+#include <linux/kd.h>
+#include <linux/route.h>
+#include <linux/netlink.h>
 
 #include <asm/types.h>
 #include <asm/uaccess.h>
 
-/* As gcc will warn about casting u32 to some ptr, we have to cast it to unsigned long first, and that's what is A() for.
- * You just do (void *)A(x), instead of having to type (void *)((unsigned long)x) or instead of just (void *)x, which will
- * produce warnings */
+/* As gcc will warn about casting u32 to some ptr, we have to cast it to
+ * unsigned long first, and that's what is A() for.
+ * You just do (void *)A(x), instead of having to type (void *)((unsigned long)x)
+ * or instead of just (void *)x, which will produce warnings.
+ */
 #define A(x) ((unsigned long)x)
 
 extern asmlinkage int sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
+
+static int w_long(unsigned int fd, unsigned int cmd, u32 arg)
+{
+	unsigned long old_fs = get_fs();
+	int err;
+	unsigned long val;
+	
+	set_fs (KERNEL_DS);
+	err = sys_ioctl(fd, cmd, (unsigned long)&val);
+	set_fs (old_fs);
+	if (!err && put_user(val, (u32 *)A(arg)))
+		return -EFAULT;
+	return err;
+}
  
+struct ifmap32 {
+	u32 mem_start;
+	u32 mem_end;
+	unsigned short base_addr;
+	unsigned char irq;
+	unsigned char dma;
+	unsigned char port;
+};
+
+struct ifreq32 {
+#define IFHWADDRLEN     6
+#define IFNAMSIZ        16
+        union {
+                char    ifrn_name[IFNAMSIZ];            /* if name, e.g. "en0" */
+        } ifr_ifrn;
+        union {
+                struct  sockaddr ifru_addr;
+                struct  sockaddr ifru_dstaddr;
+                struct  sockaddr ifru_broadaddr;
+                struct  sockaddr ifru_netmask;
+                struct  sockaddr ifru_hwaddr;
+                short   ifru_flags;
+                int     ifru_ivalue;
+                int     ifru_mtu;
+                struct  ifmap32 ifru_map;
+                char    ifru_slave[IFNAMSIZ];   /* Just fits the size */
+                __kernel_caddr_t32 ifru_data;
+        } ifr_ifru;
+};
+
+struct ifconf32 {
+        int     ifc_len;                        /* size of buffer       */
+        __kernel_caddr_t32  ifcbuf;
+};
+
+static inline int dev_ifconf(unsigned int fd, u32 arg)
+{
+	struct ifconf32 ifc32;
+	struct ifconf ifc;
+	struct ifreq32 *ifr32;
+	struct ifreq *ifr;
+	unsigned long old_fs;
+	unsigned int i, j;
+	int err;
+
+	if (copy_from_user(&ifc32, (struct ifconf32 *)A(arg), sizeof(struct ifconf32)))
+		return -EFAULT;
+	ifc.ifc_len = ((ifc32.ifc_len / sizeof (struct ifreq32)) + 1) * sizeof (struct ifreq);
+	ifc.ifc_buf = kmalloc (ifc.ifc_len, GFP_KERNEL);
+	if (!ifc.ifc_buf) return -ENOMEM;
+	ifr = ifc.ifc_req;
+	ifr32 = (struct ifreq32 *)A(ifc32.ifcbuf);
+	for (i = 0; i < ifc32.ifc_len; i += sizeof (struct ifreq32)) {
+		if (copy_from_user(ifr++, ifr32++, sizeof (struct ifreq32))) {
+			kfree (ifc.ifc_buf);
+			return -EFAULT;
+		}
+	}
+	old_fs = get_fs(); set_fs (KERNEL_DS);
+	err = sys_ioctl (fd, SIOCGIFCONF, (unsigned long)&ifc);	
+	set_fs (old_fs);
+	if (!err) {
+		ifr = ifc.ifc_req;
+		ifr32 = (struct ifreq32 *)A(ifc32.ifcbuf);
+		for (i = 0, j = 0; i < ifc32.ifc_len && j < ifc.ifc_len;
+		     i += sizeof (struct ifreq32), j += sizeof (struct ifreq)) {
+			if (copy_to_user(ifr32++, ifr++, sizeof (struct ifreq32))) {
+				err = -EFAULT;
+				break;
+			}
+		}
+		if (!err) {
+			if (i <= ifc32.ifc_len)
+				ifc32.ifc_len = i;
+			else
+				ifc32.ifc_len = i - sizeof (struct ifreq32);
+			if (copy_to_user((struct ifconf32 *)A(arg), &ifc32, sizeof(struct ifconf32)))
+				err = -EFAULT;
+		}
+	}
+	kfree (ifc.ifc_buf);
+	return err;
+}
+
+static inline int dev_ifsioc(unsigned int fd, unsigned int cmd, u32 arg)
+{
+	struct ifreq ifr;
+	unsigned long old_fs;
+	int err;
+	
+	if (cmd == SIOCSIFMAP) {
+		if (copy_from_user(&ifr, (struct ifreq32 *)A(arg), sizeof(ifr.ifr_name)) ||
+		    __get_user(ifr.ifr_map.mem_start, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.mem_start)) ||
+		    __get_user(ifr.ifr_map.mem_end, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.mem_end)) ||
+		    __get_user(ifr.ifr_map.base_addr, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.base_addr)) ||
+		    __get_user(ifr.ifr_map.irq, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.irq)) ||
+		    __get_user(ifr.ifr_map.dma, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.dma)) ||
+		    __get_user(ifr.ifr_map.port, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.port)))
+			return -EFAULT;
+	} else {
+		if (copy_from_user(&ifr, (struct ifreq32 *)A(arg), sizeof(struct ifreq32)))
+			return -EFAULT;
+	}
+	old_fs = get_fs();
+	set_fs (KERNEL_DS);
+	err = sys_ioctl (fd, cmd, (unsigned long)&ifr);
+	set_fs (old_fs);
+	if (!err) {
+		switch (cmd) {
+		case SIOCGIFFLAGS:
+		case SIOCGIFMETRIC:
+		case SIOCGIFMTU:
+		case SIOCGIFMEM:
+		case SIOCGIFHWADDR:
+		case SIOGIFINDEX:
+		case SIOCGIFADDR:
+		case SIOCGIFBRDADDR:
+		case SIOCGIFDSTADDR:
+		case SIOCGIFNETMASK:
+			if (copy_to_user((struct ifreq32 *)A(arg), &ifr, sizeof(struct ifreq32)))
+				return -EFAULT;
+			break;
+		case SIOCGIFMAP:
+			if (copy_to_user((struct ifreq32 *)A(arg), &ifr, sizeof(ifr.ifr_name)) ||
+			    __put_user(ifr.ifr_map.mem_start, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.mem_start)) ||
+			    __put_user(ifr.ifr_map.mem_end, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.mem_end)) ||
+			    __put_user(ifr.ifr_map.base_addr, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.base_addr)) ||
+			    __put_user(ifr.ifr_map.irq, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.irq)) ||
+			    __put_user(ifr.ifr_map.dma, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.dma)) ||
+			    __put_user(ifr.ifr_map.port, &(((struct ifreq32 *)A(arg))->ifr_ifru.ifru_map.port)))
+				return -EFAULT;
+			break;
+		}
+	}
+	return err;
+}
+
+struct rtentry32 {
+        u32   		rt_pad1;
+        struct sockaddr rt_dst;         /* target address               */
+        struct sockaddr rt_gateway;     /* gateway addr (RTF_GATEWAY)   */
+        struct sockaddr rt_genmask;     /* target network mask (IP)     */
+        unsigned short  rt_flags;
+        short           rt_pad2;
+        u32   		rt_pad3;
+        unsigned char   rt_tos;
+        unsigned char   rt_class;
+        short           rt_pad4;
+        short           rt_metric;      /* +1 for binary compatibility! */
+        /* char * */ u32 rt_dev;        /* forcing the device at add    */
+        u32   		rt_mtu;         /* per route MTU/Window         */
+        u32   		rt_window;      /* Window clamping              */
+        unsigned short  rt_irtt;        /* Initial RTT                  */
+
+};
+
+static inline int routing_ioctl(unsigned int fd, unsigned int cmd, u32 arg)
+{
+	struct rtentry r;
+	char devname[16];
+	u32 rtdev;
+	int ret;
+	unsigned long old_fs = get_fs();
+	
+	if (get_user (r.rt_pad1, &(((struct rtentry32 *)A(arg))->rt_pad1)) ||
+	    copy_from_user (&r.rt_dst, &(((struct rtentry32 *)A(arg))->rt_dst), 3 * sizeof(struct sockaddr)) ||
+	    __get_user (r.rt_flags, &(((struct rtentry32 *)A(arg))->rt_flags)) ||
+	    __get_user (r.rt_pad2, &(((struct rtentry32 *)A(arg))->rt_pad2)) ||
+	    __get_user (r.rt_pad3, &(((struct rtentry32 *)A(arg))->rt_pad3)) ||
+	    __get_user (r.rt_tos, &(((struct rtentry32 *)A(arg))->rt_tos)) ||
+	    __get_user (r.rt_class, &(((struct rtentry32 *)A(arg))->rt_class)) ||
+	    __get_user (r.rt_pad4, &(((struct rtentry32 *)A(arg))->rt_pad4)) ||
+	    __get_user (r.rt_metric, &(((struct rtentry32 *)A(arg))->rt_metric)) ||
+	    __get_user (r.rt_mtu, &(((struct rtentry32 *)A(arg))->rt_mtu)) ||
+	    __get_user (r.rt_window, &(((struct rtentry32 *)A(arg))->rt_window)) ||
+	    __get_user (r.rt_irtt, &(((struct rtentry32 *)A(arg))->rt_irtt)) ||
+	    __get_user (rtdev, &(((struct rtentry32 *)A(arg))->rt_dev)) ||
+	    (rtdev && copy_from_user (devname, (char *)A(rtdev), 15)))
+		return -EFAULT;
+	if (rtdev) {
+		r.rt_dev = devname; devname[15] = 0;
+	} else
+		r.rt_dev = 0;
+	set_fs (KERNEL_DS);
+	ret = sys_ioctl (fd, cmd, (long)&r);
+	set_fs (old_fs);
+	return ret;
+}
+
+struct nlmsghdr32 {
+        u32   		nlmsg_len;      /* Length of message including header */
+        u32   		nlmsg_type;     /* Message type */
+        u32   		nlmsg_seq;      /* Sequence number */
+        u32   		nlmsg_pid;      /* Sending process PID */
+        unsigned char   nlmsg_data[0];
+};
+
+struct in_rtmsg32 {
+        struct in_addr  rtmsg_prefix;
+        struct in_addr  rtmsg_gateway;
+        unsigned        rtmsg_flags;
+        u32   		rtmsg_mtu;
+        u32   		rtmsg_window;
+        unsigned short  rtmsg_rtt;
+        short           rtmsg_metric;
+        unsigned char   rtmsg_tos;
+        unsigned char   rtmsg_class;
+        unsigned char   rtmsg_prefixlen;
+        unsigned char   rtmsg_reserved;
+        int             rtmsg_ifindex;
+};
+
+struct in_ifmsg32 {
+        struct sockaddr ifmsg_lladdr;
+        struct in_addr  ifmsg_prefix;
+        struct in_addr  ifmsg_brd;
+        unsigned        ifmsg_flags;
+        u32   		ifmsg_mtu;
+        short           ifmsg_metric;
+        unsigned char   ifmsg_prefixlen;
+        unsigned char   ifmsg_reserved;
+        int             ifmsg_index;
+        char            ifmsg_name[16];
+};
+
+static inline int rtmsg_ioctl(unsigned int fd, u32 arg)
+{
+	struct {
+		struct nlmsghdr n;
+		union {
+			struct in_rtmsg rt;
+			struct in_ifmsg iff;
+			struct in_rtctlmsg ctl;
+			struct in_rtrulemsg rule;
+		} u;
+	} nn;
+	char *p;
+	int ret;
+	unsigned long old_fs = get_fs();
+	
+	if (get_user (nn.n.nlmsg_len, &(((struct nlmsghdr32 *)A(arg))->nlmsg_len)) ||
+	    __get_user (nn.n.nlmsg_type, &(((struct nlmsghdr32 *)A(arg))->nlmsg_type)) ||
+	    __get_user (nn.n.nlmsg_seq, &(((struct nlmsghdr32 *)A(arg))->nlmsg_seq)) ||
+	    __get_user (nn.n.nlmsg_pid, &(((struct nlmsghdr32 *)A(arg))->nlmsg_pid)) ||
+	    __get_user (nn.n.nlmsg_data[0], &(((struct nlmsghdr32 *)A(arg))->nlmsg_data[0])))
+		return -EFAULT;
+	p = ((char *)(&nn.n)) + sizeof(struct nlmsghdr);
+	arg += sizeof(struct nlmsghdr32);
+	switch (nn.n.nlmsg_type) {
+	case RTMSG_NEWRULE:
+	case RTMSG_DELRULE:
+		if (nn.n.nlmsg_len < sizeof(struct nlmsghdr32) + sizeof(struct in_rtrulemsg)
+		    - sizeof(struct in_rtmsg) + sizeof(struct in_rtmsg32))
+			return -EINVAL;
+		if (copy_from_user (p, (struct in_rtrulemsg *)A(arg), sizeof(struct in_rtrulemsg) - sizeof(struct in_rtmsg)))
+			return -EFAULT;
+		nn.n.nlmsg_len = sizeof(struct nlmsghdr) + sizeof(struct in_rtrulemsg);
+		p += sizeof (struct in_rtrulemsg) - sizeof(struct in_rtmsg);
+		arg += sizeof (struct in_rtrulemsg) - sizeof(struct in_rtmsg);
+		goto newroute;
+	case RTMSG_NEWROUTE:
+	case RTMSG_DELROUTE:
+		if (nn.n.nlmsg_len < sizeof(struct nlmsghdr32) + sizeof(struct in_rtmsg))
+			return -EINVAL;
+		nn.n.nlmsg_len = sizeof(struct nlmsghdr) + sizeof(struct in_rtmsg);
+newroute:
+		if (copy_from_user (p, (struct in_rtmsg32 *)A(arg), 2*sizeof(struct in_addr) + sizeof(unsigned)) ||
+	    	    __get_user (((struct in_rtmsg *)p)->rtmsg_mtu, &((struct in_rtmsg32 *)A(arg))->rtmsg_mtu) ||
+	    	    __get_user (((struct in_rtmsg *)p)->rtmsg_window, &((struct in_rtmsg32 *)A(arg))->rtmsg_window) ||
+		    copy_from_user (&(((struct in_rtmsg *)p)->rtmsg_rtt), &((struct in_rtmsg32 *)A(arg))->rtmsg_rtt, 
+			2 * sizeof(short) + 4 + sizeof(int)))
+			return -EFAULT;
+		break;
+	case RTMSG_NEWDEVICE:
+	case RTMSG_DELDEVICE:
+		if (nn.n.nlmsg_len < sizeof(struct nlmsghdr32) + sizeof(struct in_ifmsg))
+			return -EINVAL;
+		nn.n.nlmsg_len = sizeof(struct nlmsghdr) + sizeof(struct in_ifmsg);
+		if (copy_from_user (p, (struct in_ifmsg32 *)A(arg), 
+			sizeof(struct sockaddr) + 2*sizeof(struct in_addr) + sizeof(unsigned)) ||
+	    	    __get_user (((struct in_ifmsg *)p)->ifmsg_mtu, &((struct in_ifmsg32 *)A(arg))->ifmsg_mtu) ||
+		    copy_from_user (&(((struct in_ifmsg *)p)->ifmsg_metric), &((struct in_ifmsg32 *)A(arg))->ifmsg_metric, 
+			sizeof(short) + 2 + sizeof(int) + 16))
+			return -EFAULT;
+		break;
+	case RTMSG_CONTROL:
+		if (nn.n.nlmsg_len < sizeof(struct nlmsghdr32) + sizeof(struct in_rtctlmsg))
+			return -EINVAL;
+		nn.n.nlmsg_len = sizeof(struct nlmsghdr) + sizeof(struct in_rtctlmsg);
+		if (copy_from_user (p, (struct in_rtctlmsg *)A(arg), sizeof(struct in_rtctlmsg)))
+			return -EFAULT;
+		break;
+	}
+	set_fs (KERNEL_DS);
+	ret = sys_ioctl (fd, SIOCRTMSG, (long)&(nn.n));
+	set_fs (old_fs);
+	return ret;
+}
+
+struct hd_geometry32 {
+	unsigned char heads;
+	unsigned char sectors;
+	unsigned short cylinders;
+	u32 start;
+};
+                        
+static inline int hdio_getgeo(unsigned int fd, u32 arg)
+{
+	unsigned long old_fs = get_fs();
+	struct hd_geometry geo;
+	int err;
+	
+	set_fs (KERNEL_DS);
+	err = sys_ioctl(fd, HDIO_GETGEO, (unsigned long)&geo);
+	set_fs (old_fs);
+	if (!err) {
+		if (copy_to_user ((struct hd_geometry32 *)A(arg), &geo, 4) ||
+		    __put_user (geo.start, &(((struct hd_geometry32 *)A(arg))->start)))
+			return -EFAULT;
+	}
+	return err;
+}
+
 asmlinkage int sys32_ioctl(unsigned int fd, unsigned int cmd, u32 arg)
 {
 	struct file * filp;
@@ -35,16 +382,149 @@
 		error = sys_ioctl (fd, cmd, (unsigned long)arg);
 		goto out;
 	}
-	error = 0;
+	error = -EFAULT;
 	switch (cmd) {
-		default:
-			error = sys_ioctl (fd, cmd, (unsigned long)arg);
-			goto out;
+	case SIOCGIFCONF:
+		error = dev_ifconf(fd, arg);
+		goto out;
+		
+	case SIOCGIFFLAGS:
+	case SIOCSIFFLAGS:
+	case SIOCGIFMETRIC:
+	case SIOCSIFMETRIC:
+	case SIOCGIFMTU:
+	case SIOCSIFMTU:
+	case SIOCGIFMEM:
+	case SIOCSIFMEM:
+	case SIOCGIFHWADDR:
+	case SIOCSIFHWADDR:
+	case SIOCADDMULTI:
+	case SIOCDELMULTI:
+	case SIOGIFINDEX:
+	case SIOCGIFMAP:
+	case SIOCSIFMAP:
+	case SIOCGIFADDR:
+	case SIOCSIFADDR:
+	case SIOCGIFBRDADDR:
+	case SIOCSIFBRDADDR:
+	case SIOCGIFDSTADDR:
+	case SIOCSIFDSTADDR:
+	case SIOCGIFNETMASK:
+	case SIOCSIFNETMASK:
+		error = dev_ifsioc(fd, cmd, arg);
+		goto out;
+		
+	case SIOCADDRT:
+	case SIOCDELRT:
+		error = routing_ioctl(fd, cmd, arg);
+		goto out;
+
+	case SIOCRTMSG:
+		error = rtmsg_ioctl(fd, arg);
+		goto out;
+		
+	case HDIO_GETGEO:
+		error = hdio_getgeo(fd, arg);
+		goto out;
+		
+	case BLKRAGET:
+	case BLKGETSIZE:
+		error = w_long(fd, cmd, arg);
+		goto out;
+
+	/* List here exlicitly which ioctl's are known to have
+	 * compatable types passed or none at all...
+	 */
+
+	/* Bit T */
+	case TCGETA:
+	case TCSETA:
+	case TCSETAW:
+	case TCSETAF:
+	case TCSBRK:
+	case TCXONC:
+	case TCFLSH:
+	case TCGETS:
+	case TCSETS:
+	case TCSETSW:
+	case TCSETSF:
+	case TIOCLINUX:
+
+	/* Little t */
+	case TIOCGETD:
+	case TIOCSETD:
+	case TIOCEXCL:
+	case TIOCNXCL:
+	case TIOCCONS:
+	case TIOCGSOFTCAR:
+	case TIOCSSOFTCAR:
+	case TIOCSWINSZ:
+	case TIOCGWINSZ:
+	case TIOCMGET:
+	case TIOCMBIC:
+	case TIOCMBIS:
+	case TIOCMSET:
+	case TIOCPKT:
+	case TIOCNOTTY:
+	case TIOCSTI:
+	case TIOCOUTQ:
+	case TIOCSPGRP:
+	case TIOCGPGRP:
+	case TIOCSCTTY:
+
+	/* Little f */
+	case FIOCLEX:
+	case FIONCLEX:
+	case FIOASYNC:
+	case FIONBIO:
+	case FIONREAD: /* This is also TIOCINQ */
+	
+	/* 0x12 */
+	case BLKRRPART:
+	case BLKFLSBUF:
+	case BLKRASET:
+	
+	/* 0x09 */
+	case REGISTER_DEV:
+	case START_MD:
+	case STOP_MD:
+	
+	/* Big K */
+	case PIO_FONT:
+	case GIO_FONT:
+	case KDSIGACCEPT:
+	case KDGETKEYCODE:
+	case KDSETKEYCODE:
+
+	/* Socket level stuff */
+	case FIOSETOWN:
+	case SIOCSPGRP:
+	case FIOGETOWN:
+	case SIOCGPGRP:
+	case SIOCATMARK:
+	case SIOCGSTAMP:
+	case SIOCSIFLINK:
+	case SIOCSIFENCAP:
+	case SIOCGIFENCAP:
+	case SIOCSIFBR:
+	case SIOCGIFBR:
+	case SIOCSARP:
+	case SIOCGARP:
+	case SIOCDARP:
+	case SIOCADDDLCI:
+	case SIOCDELDLCI:
+		error = sys_ioctl (fd, cmd, (unsigned long)arg);
+		goto out;
+		break;
+
+	default:
+		printk("sys32_ioctl: Unknown cmd fd(%d) cmd(%08x) arg(%08x)\n",
+		       (int)fd, (unsigned int)cmd, (unsigned int)arg);
+		error = -EINVAL;
+		goto out;
+		break;
 	}
 out:
-	if (error == -EINVAL) {
-		printk ("sys32_ioctl on %016lx's %08x returns EINVAL\n", filp->f_op ? (long)filp->f_op->ioctl : 0UL, cmd);
-	}
 	unlock_kernel();
 	return error;
 }