2 * sys_ia32.c: Conversion between 32bit and 64bit native syscalls. Derived from sys_sparc32.c.
4 * Copyright (C) 2000 VA Linux Co
5 * Copyright (C) 2000 Don Dugger <n0ano@valinux.com>
6 * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
7 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
8 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
9 * Copyright (C) 2000-2003 Hewlett-Packard Co
10 * David Mosberger-Tang <davidm@hpl.hp.com>
12 * These routines maintain argument size conversion between 32bit and 64bit
16 #include <linux/config.h>
17 #include <linux/kernel.h>
18 #include <linux/sysctl.h>
19 #include <linux/sched.h>
21 #include <linux/file.h>
22 #include <linux/signal.h>
23 #include <linux/resource.h>
24 #include <linux/times.h>
25 #include <linux/utsname.h>
26 #include <linux/timex.h>
27 #include <linux/smp.h>
28 #include <linux/smp_lock.h>
29 #include <linux/sem.h>
30 #include <linux/msg.h>
32 #include <linux/shm.h>
33 #include <linux/slab.h>
34 #include <linux/uio.h>
35 #include <linux/nfs_fs.h>
36 #include <linux/smb_fs.h>
37 #include <linux/smb_mount.h>
38 #include <linux/ncp_fs.h>
39 #include <linux/quota.h>
40 #include <linux/sunrpc/svc.h>
41 #include <linux/nfsd/nfsd.h>
42 #include <linux/nfsd/cache.h>
43 #include <linux/nfsd/xdr.h>
44 #include <linux/nfsd/syscall.h>
45 #include <linux/poll.h>
46 #include <linux/personality.h>
47 #include <linux/ptrace.h>
48 #include <linux/stat.h>
49 #include <linux/ipc.h>
50 #include <linux/compat.h>
51 #include <linux/vfs.h>
53 #include <asm/types.h>
54 #include <asm/uaccess.h>
55 #include <asm/semaphore.h>
65 # define DBG(fmt...) printk(KERN_DEBUG fmt)
70 #define A(__x) ((unsigned long)(__x))
71 #define AA(__x) ((unsigned long)(__x))
72 #define ROUND_UP(x,a) ((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1)))
73 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
75 #define OFFSET4K(a) ((a) & 0xfff)
76 #define PAGE_START(addr) ((addr) & PAGE_MASK)
77 #define PAGE_OFF(addr) ((addr) & ~PAGE_MASK)
79 #define high2lowuid(uid) ((uid) > 65535 ? 65534 : (uid))
80 #define high2lowgid(gid) ((gid) > 65535 ? 65534 : (gid))
82 extern asmlinkage long sys_execve (char *, char **, char **, struct pt_regs *);
83 extern asmlinkage long sys_mprotect (unsigned long, size_t, unsigned long);
84 extern asmlinkage long sys_munmap (unsigned long, size_t);
85 extern unsigned long arch_get_unmapped_area (struct file *, unsigned long, unsigned long,
86 unsigned long, unsigned long);
88 /* forward declaration: */
89 asmlinkage long sys32_mprotect (unsigned int, unsigned int, int);
90 asmlinkage unsigned long sys_brk(unsigned long);
93 * Anything that modifies or inspects ia32 user virtual memory must hold this semaphore
96 /* XXX make per-mm: */
97 static DECLARE_MUTEX(ia32_mmap_sem);
100 nargs (unsigned int arg, char **ap)
110 err = get_user(addr, (unsigned int *)A(arg));
114 *ap++ = (char *) A(addr);
115 arg += sizeof(unsigned int);
122 sys32_execve (char *filename, unsigned int argv, unsigned int envp,
123 struct pt_regs *regs)
125 unsigned long old_map_base, old_task_size, tssd;
130 na = nargs(argv, NULL);
133 ne = nargs(envp, NULL);
136 len = (na + ne + 2) * sizeof(*av);
137 av = kmalloc(len, GFP_KERNEL);
152 old_map_base = current->thread.map_base;
153 old_task_size = current->thread.task_size;
154 tssd = ia64_get_kr(IA64_KR_TSSD);
156 /* we may be exec'ing a 64-bit process: reset map base, task-size, and io-base: */
157 current->thread.map_base = DEFAULT_MAP_BASE;
158 current->thread.task_size = DEFAULT_TASK_SIZE;
159 ia64_set_kr(IA64_KR_IO_BASE, current->thread.old_iob);
160 ia64_set_kr(IA64_KR_TSSD, current->thread.old_k1);
163 r = sys_execve(filename, av, ae, regs);
165 /* oops, execve failed, switch back to old values... */
166 ia64_set_kr(IA64_KR_IO_BASE, IA32_IOBASE);
167 ia64_set_kr(IA64_KR_TSSD, tssd);
168 current->thread.map_base = old_map_base;
169 current->thread.task_size = old_task_size;
170 set_fs(USER_DS); /* establish new task-size as the address-limit */
177 int cp_compat_stat(struct kstat *stat, struct compat_stat *ubuf)
181 if ((u64) stat->size > MAX_NON_LFS)
184 if (clear_user(ubuf, sizeof(*ubuf)))
187 err = __put_user(stat->dev, &ubuf->st_dev);
188 err |= __put_user(stat->ino, &ubuf->st_ino);
189 err |= __put_user(stat->mode, &ubuf->st_mode);
190 err |= __put_user(stat->nlink, &ubuf->st_nlink);
191 err |= __put_user(high2lowuid(stat->uid), &ubuf->st_uid);
192 err |= __put_user(high2lowgid(stat->gid), &ubuf->st_gid);
193 err |= __put_user(stat->rdev, &ubuf->st_rdev);
194 err |= __put_user(stat->size, &ubuf->st_size);
195 err |= __put_user(stat->atime.tv_sec, &ubuf->st_atime);
196 err |= __put_user(stat->atime.tv_nsec, &ubuf->st_atime_nsec);
197 err |= __put_user(stat->mtime.tv_sec, &ubuf->st_mtime);
198 err |= __put_user(stat->mtime.tv_nsec, &ubuf->st_mtime_nsec);
199 err |= __put_user(stat->ctime.tv_sec, &ubuf->st_ctime);
200 err |= __put_user(stat->ctime.tv_nsec, &ubuf->st_ctime_nsec);
201 err |= __put_user(stat->blksize, &ubuf->st_blksize);
202 err |= __put_user(stat->blocks, &ubuf->st_blocks);
206 #if PAGE_SHIFT > IA32_PAGE_SHIFT
210 get_page_prot (struct vm_area_struct *vma, unsigned long addr)
214 if (!vma || vma->vm_start > addr)
217 if (vma->vm_flags & VM_READ)
219 if (vma->vm_flags & VM_WRITE)
221 if (vma->vm_flags & VM_EXEC)
227 * Map a subpage by creating an anonymous page that contains the union of the old page and
231 mmap_subpage (struct file *file, unsigned long start, unsigned long end, int prot, int flags,
236 unsigned long ret = 0;
237 struct vm_area_struct *vma = find_vma(current->mm, start);
238 int old_prot = get_page_prot(vma, start);
240 DBG("mmap_subpage(file=%p,start=0x%lx,end=0x%lx,prot=%x,flags=%x,off=0x%llx)\n",
241 file, start, end, prot, flags, off);
244 /* Optimize the case where the old mmap and the new mmap are both anonymous */
245 if ((old_prot & PROT_WRITE) && (flags & MAP_ANONYMOUS) && !vma->vm_file) {
246 if (clear_user((void *) start, end - start)) {
253 page = (void *) get_zeroed_page(GFP_KERNEL);
258 copy_from_user(page, (void *) PAGE_START(start), PAGE_SIZE);
260 down_write(¤t->mm->mmap_sem);
262 ret = do_mmap(0, PAGE_START(start), PAGE_SIZE, prot | PROT_WRITE,
263 flags | MAP_FIXED | MAP_ANONYMOUS, 0);
265 up_write(¤t->mm->mmap_sem);
267 if (IS_ERR((void *) ret))
271 /* copy back the old page contents. */
273 copy_to_user((void *) PAGE_START(start), page, PAGE_OFF(start));
275 copy_to_user((void *) end, page + PAGE_OFF(end),
276 PAGE_SIZE - PAGE_OFF(end));
279 if (!(flags & MAP_ANONYMOUS)) {
280 /* read the file contents */
281 inode = file->f_dentry->d_inode;
282 if (!inode->i_fop || !file->f_op->read
283 || ((*file->f_op->read)(file, (char *) start, end - start, &off) < 0))
291 if (!(prot & PROT_WRITE))
292 ret = sys_mprotect(PAGE_START(start), PAGE_SIZE, prot | old_prot);
295 free_page((unsigned long) page);
300 emulate_mmap (struct file *file, unsigned long start, unsigned long len, int prot, int flags,
303 unsigned long tmp, end, pend, pstart, ret, is_congruent, fudge = 0;
308 pstart = PAGE_START(start);
309 pend = PAGE_ALIGN(end);
311 if (flags & MAP_FIXED) {
312 if (start > pstart) {
313 if (flags & MAP_SHARED)
315 "%s(%d): emulate_mmap() can't share head (addr=0x%lx)\n",
316 current->comm, current->pid, start);
317 ret = mmap_subpage(file, start, min(PAGE_ALIGN(start), end), prot, flags,
319 if (IS_ERR((void *) ret))
323 return start; /* done */
326 if (flags & MAP_SHARED)
328 "%s(%d): emulate_mmap() can't share tail (end=0x%lx)\n",
329 current->comm, current->pid, end);
330 ret = mmap_subpage(file, max(start, PAGE_START(end)), end, prot, flags,
331 (off + len) - PAGE_OFF(end));
332 if (IS_ERR((void *) ret))
336 return start; /* done */
340 * If a start address was specified, use it if the entire rounded out area
343 if (start && !pstart)
344 fudge = 1; /* handle case of mapping to range (0,PAGE_SIZE) */
345 tmp = arch_get_unmapped_area(file, pstart - fudge, pend - pstart, 0, flags);
348 start = pstart + PAGE_OFF(off); /* make start congruent with off */
350 pend = PAGE_ALIGN(end);
354 poff = off + (pstart - start); /* note: (pstart - start) may be negative */
355 is_congruent = (flags & MAP_ANONYMOUS) || (PAGE_OFF(poff) == 0);
357 if ((flags & MAP_SHARED) && !is_congruent)
358 printk(KERN_INFO "%s(%d): emulate_mmap() can't share contents of incongruent mmap "
359 "(addr=0x%lx,off=0x%llx)\n", current->comm, current->pid, start, off);
361 DBG("mmap_body: mapping [0x%lx-0x%lx) %s with poff 0x%llx\n", pstart, pend,
362 is_congruent ? "congruent" : "not congruent", poff);
364 down_write(¤t->mm->mmap_sem);
366 if (!(flags & MAP_ANONYMOUS) && is_congruent)
367 ret = do_mmap(file, pstart, pend - pstart, prot, flags | MAP_FIXED, poff);
369 ret = do_mmap(0, pstart, pend - pstart,
370 prot | ((flags & MAP_ANONYMOUS) ? 0 : PROT_WRITE),
371 flags | MAP_FIXED | MAP_ANONYMOUS, 0);
373 up_write(¤t->mm->mmap_sem);
375 if (IS_ERR((void *) ret))
379 /* read the file contents */
380 inode = file->f_dentry->d_inode;
381 if (!inode->i_fop || !file->f_op->read
382 || ((*file->f_op->read)(file, (char *) pstart, pend - pstart, &poff) < 0))
384 sys_munmap(pstart, pend - pstart);
387 if (!(prot & PROT_WRITE) && sys_mprotect(pstart, pend - pstart, prot) < 0)
393 #endif /* PAGE_SHIFT > IA32_PAGE_SHIFT */
395 static inline unsigned int
396 get_prot32 (unsigned int prot)
398 if (prot & PROT_WRITE)
399 /* on x86, PROT_WRITE implies PROT_READ which implies PROT_EEC */
400 prot |= PROT_READ | PROT_WRITE | PROT_EXEC;
401 else if (prot & (PROT_READ | PROT_EXEC))
402 /* on x86, there is no distinction between PROT_READ and PROT_EXEC */
403 prot |= (PROT_READ | PROT_EXEC);
409 ia32_do_mmap (struct file *file, unsigned long addr, unsigned long len, int prot, int flags,
412 DBG("ia32_do_mmap(file=%p,addr=0x%lx,len=0x%lx,prot=%x,flags=%x,offset=0x%llx)\n",
413 file, addr, len, prot, flags, offset);
415 if (file && (!file->f_op || !file->f_op->mmap))
418 len = IA32_PAGE_ALIGN(len);
422 if (len > IA32_PAGE_OFFSET || addr > IA32_PAGE_OFFSET - len)
424 if (flags & MAP_FIXED)
430 if (OFFSET4K(offset))
433 prot = get_prot32(prot);
435 #if PAGE_SHIFT > IA32_PAGE_SHIFT
436 down(&ia32_mmap_sem);
438 addr = emulate_mmap(file, addr, len, prot, flags, offset);
442 down_write(¤t->mm->mmap_sem);
444 addr = do_mmap(file, addr, len, prot, flags, offset);
446 up_write(¤t->mm->mmap_sem);
448 DBG("ia32_do_mmap: returning 0x%lx\n", addr);
453 * Linux/i386 didn't use to be able to handle more than 4 system call parameters, so these
454 * system calls used a memory block for parameter passing..
457 struct mmap_arg_struct {
467 sys32_mmap (struct mmap_arg_struct *arg)
469 struct mmap_arg_struct a;
470 struct file *file = NULL;
474 if (copy_from_user(&a, arg, sizeof(a)))
477 if (OFFSET4K(a.offset))
482 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
483 if (!(flags & MAP_ANONYMOUS)) {
489 addr = ia32_do_mmap(file, a.addr, a.len, a.prot, flags, a.offset);
497 sys32_mmap2 (unsigned int addr, unsigned int len, unsigned int prot, unsigned int flags,
498 unsigned int fd, unsigned int pgoff)
500 struct file *file = NULL;
501 unsigned long retval;
503 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
504 if (!(flags & MAP_ANONYMOUS)) {
510 retval = ia32_do_mmap(file, addr, len, prot, flags,
511 (unsigned long) pgoff << IA32_PAGE_SHIFT);
519 sys32_munmap (unsigned int start, unsigned int len)
521 unsigned int end = start + len;
524 #if PAGE_SHIFT <= IA32_PAGE_SHIFT
525 ret = sys_munmap(start, end - start);
530 start = PAGE_ALIGN(start);
531 end = PAGE_START(end);
536 down(&ia32_mmap_sem);
538 ret = sys_munmap(start, end - start);
545 #if PAGE_SHIFT > IA32_PAGE_SHIFT
548 * When mprotect()ing a partial page, we set the permission to the union of the old
549 * settings and the new settings. In other words, it's only possible to make access to a
550 * partial page less restrictive.
553 mprotect_subpage (unsigned long address, int new_prot)
556 struct vm_area_struct *vma;
558 if (new_prot == PROT_NONE)
559 return 0; /* optimize case where nothing changes... */
560 vma = find_vma(current->mm, address);
561 old_prot = get_page_prot(vma, address);
562 return sys_mprotect(address, PAGE_SIZE, new_prot | old_prot);
565 #endif /* PAGE_SHIFT > IA32_PAGE_SHIFT */
568 sys32_mprotect (unsigned int start, unsigned int len, int prot)
570 unsigned long end = start + len;
571 #if PAGE_SHIFT > IA32_PAGE_SHIFT
575 prot = get_prot32(prot);
577 #if PAGE_SHIFT <= IA32_PAGE_SHIFT
578 return sys_mprotect(start, end - start, prot);
583 end = IA32_PAGE_ALIGN(end);
587 down(&ia32_mmap_sem);
589 if (PAGE_OFF(start)) {
590 /* start address is 4KB aligned but not page aligned. */
591 retval = mprotect_subpage(PAGE_START(start), prot);
595 start = PAGE_ALIGN(start);
597 goto out; /* retval is already zero... */
601 /* end address is 4KB aligned but not page aligned. */
602 retval = mprotect_subpage(PAGE_START(end), prot);
606 end = PAGE_START(end);
608 retval = sys_mprotect(start, end - start, prot);
622 retval = do_pipe(fds);
625 if (copy_to_user(fd, fds, sizeof(fds)))
632 get_tv32 (struct timeval *o, struct compat_timeval *i)
634 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
635 (__get_user(o->tv_sec, &i->tv_sec) | __get_user(o->tv_usec, &i->tv_usec)));
639 put_tv32 (struct compat_timeval *o, struct timeval *i)
641 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
642 (__put_user(i->tv_sec, &o->tv_sec) | __put_user(i->tv_usec, &o->tv_usec)));
645 asmlinkage unsigned long
646 sys32_alarm (unsigned int seconds)
648 struct itimerval it_new, it_old;
649 unsigned int oldalarm;
651 it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0;
652 it_new.it_value.tv_sec = seconds;
653 it_new.it_value.tv_usec = 0;
654 do_setitimer(ITIMER_REAL, &it_new, &it_old);
655 oldalarm = it_old.it_value.tv_sec;
656 /* ehhh.. We can't return 0 if we have an alarm pending.. */
657 /* And we'd better return too much than too little anyway */
658 if (it_old.it_value.tv_usec)
663 /* Translations due to time_t size differences. Which affects all
664 sorts of things, like timeval and itimerval. */
666 extern struct timezone sys_tz;
669 sys32_gettimeofday (struct compat_timeval *tv, struct timezone *tz)
673 do_gettimeofday(&ktv);
674 if (put_tv32(tv, &ktv))
678 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
685 sys32_settimeofday (struct compat_timeval *tv, struct timezone *tz)
692 if (get_tv32(&ktv, tv))
694 kts.tv_sec = ktv.tv_sec;
695 kts.tv_nsec = ktv.tv_usec * 1000;
698 if (copy_from_user(&ktz, tz, sizeof(ktz)))
702 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
705 struct getdents32_callback {
706 struct linux32_dirent * current_dir;
707 struct linux32_dirent * previous;
712 struct readdir32_callback {
713 struct old_linux32_dirent * dirent;
718 filldir32 (void *__buf, const char *name, int namlen, loff_t offset, ino_t ino,
721 struct linux32_dirent * dirent;
722 struct getdents32_callback * buf = (struct getdents32_callback *) __buf;
723 int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1, 4);
725 buf->error = -EINVAL; /* only used if we fail.. */
726 if (reclen > buf->count)
728 buf->error = -EFAULT; /* only used if we fail.. */
729 dirent = buf->previous;
731 if (put_user(offset, &dirent->d_off))
733 dirent = buf->current_dir;
734 buf->previous = dirent;
735 if (put_user(ino, &dirent->d_ino)
736 || put_user(reclen, &dirent->d_reclen)
737 || copy_to_user(dirent->d_name, name, namlen)
738 || put_user(0, dirent->d_name + namlen))
740 ((char *) dirent) += reclen;
741 buf->current_dir = dirent;
742 buf->count -= reclen;
747 sys32_getdents (unsigned int fd, struct linux32_dirent *dirent, unsigned int count)
750 struct linux32_dirent * lastdirent;
751 struct getdents32_callback buf;
759 buf.current_dir = dirent;
764 error = vfs_readdir(file, filldir32, &buf);
768 lastdirent = buf.previous;
771 if (put_user(file->f_pos, &lastdirent->d_off))
773 error = count - buf.count;
783 fillonedir32 (void * __buf, const char * name, int namlen, loff_t offset, ino_t ino,
786 struct readdir32_callback * buf = (struct readdir32_callback *) __buf;
787 struct old_linux32_dirent * dirent;
792 dirent = buf->dirent;
793 if (put_user(ino, &dirent->d_ino)
794 || put_user(offset, &dirent->d_offset)
795 || put_user(namlen, &dirent->d_namlen)
796 || copy_to_user(dirent->d_name, name, namlen)
797 || put_user(0, dirent->d_name + namlen))
803 sys32_readdir (unsigned int fd, void *dirent, unsigned int count)
807 struct readdir32_callback buf;
817 error = vfs_readdir(file, fillonedir32, &buf);
826 * We can actually return ERESTARTSYS instead of EINTR, but I'd
827 * like to be certain this leads to no problems. So I return
828 * EINTR just for safety.
830 * Update: ERESTARTSYS breaks at least the xview clock binary, so
831 * I'm trying ERESTARTNOHAND which restart only when you want to.
833 #define MAX_SELECT_SECONDS \
834 ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
835 #define ROUND_UP_TIME(x,y) (((x)+(y)-1)/(y))
838 sys32_select (int n, fd_set *inp, fd_set *outp, fd_set *exp, struct compat_timeval *tvp32)
845 timeout = MAX_SCHEDULE_TIMEOUT;
850 if (get_user(sec, &tvp32->tv_sec) || get_user(usec, &tvp32->tv_usec))
854 if (sec < 0 || usec < 0)
857 if ((unsigned long) sec < MAX_SELECT_SECONDS) {
858 timeout = ROUND_UP_TIME(usec, 1000000/HZ);
859 timeout += sec * (unsigned long) HZ;
867 if (n > current->files->max_fdset)
868 n = current->files->max_fdset;
871 * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
872 * since we used fdset we need to allocate memory in units of
877 bits = kmalloc(6 * size, GFP_KERNEL);
880 fds.in = (unsigned long *) bits;
881 fds.out = (unsigned long *) (bits + size);
882 fds.ex = (unsigned long *) (bits + 2*size);
883 fds.res_in = (unsigned long *) (bits + 3*size);
884 fds.res_out = (unsigned long *) (bits + 4*size);
885 fds.res_ex = (unsigned long *) (bits + 5*size);
887 if ((ret = get_fd_set(n, inp, fds.in)) ||
888 (ret = get_fd_set(n, outp, fds.out)) ||
889 (ret = get_fd_set(n, exp, fds.ex)))
891 zero_fd_set(n, fds.res_in);
892 zero_fd_set(n, fds.res_out);
893 zero_fd_set(n, fds.res_ex);
895 ret = do_select(n, &fds, &timeout);
897 if (tvp32 && !(current->personality & STICKY_TIMEOUTS)) {
898 time_t sec = 0, usec = 0;
902 usec *= (1000000/HZ);
904 if (put_user(sec, &tvp32->tv_sec) || put_user(usec, &tvp32->tv_usec)) {
913 ret = -ERESTARTNOHAND;
914 if (signal_pending(current))
919 set_fd_set(n, inp, fds.res_in);
920 set_fd_set(n, outp, fds.res_out);
921 set_fd_set(n, exp, fds.res_ex);
929 struct sel_arg_struct {
938 sys32_old_select (struct sel_arg_struct *arg)
940 struct sel_arg_struct a;
942 if (copy_from_user(&a, arg, sizeof(a)))
944 return sys32_select(a.n, (fd_set *) A(a.inp), (fd_set *) A(a.outp), (fd_set *) A(a.exp),
945 (struct compat_timeval *) A(a.tvp));
948 asmlinkage ssize_t sys_readv (unsigned long,const struct iovec *,unsigned long);
949 asmlinkage ssize_t sys_writev (unsigned long,const struct iovec *,unsigned long);
951 static struct iovec *
952 get_compat_iovec (struct compat_iovec *iov32, struct iovec *iov_buf, u32 count, int type)
955 struct iovec *ivp, *iov;
957 /* Get the "struct iovec" from user memory */
961 if (verify_area(VERIFY_READ, iov32, sizeof(struct compat_iovec)*count))
963 if (count > UIO_MAXIOV)
965 if (count > UIO_FASTIOV) {
966 iov = kmalloc(count*sizeof(struct iovec), GFP_KERNEL);
973 for (i = 0; i < count; i++) {
974 if (__get_user(len, &iov32->iov_len) || __get_user(buf, &iov32->iov_base)) {
979 if (verify_area(type, (void *)A(buf), len)) {
982 return((struct iovec *)0);
984 ivp->iov_base = (void *)A(buf);
985 ivp->iov_len = (__kernel_size_t) len;
993 sys32_readv (int fd, struct compat_iovec *vector, u32 count)
995 struct iovec iovstack[UIO_FASTIOV];
998 mm_segment_t old_fs = get_fs();
1000 iov = get_compat_iovec(vector, iovstack, count, VERIFY_WRITE);
1004 ret = sys_readv(fd, iov, count);
1006 if (iov != iovstack)
1012 sys32_writev (int fd, struct compat_iovec *vector, u32 count)
1014 struct iovec iovstack[UIO_FASTIOV];
1017 mm_segment_t old_fs = get_fs();
1019 iov = get_compat_iovec(vector, iovstack, count, VERIFY_READ);
1023 ret = sys_writev(fd, iov, count);
1025 if (iov != iovstack)
1031 * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation..
1033 * This is really horribly ugly.
1036 struct msgbuf32 { s32 mtype; char mtext[1]; };
1048 struct ipc64_perm32 {
1052 compat_uid32_t cuid;
1053 compat_gid32_t cgid;
1055 unsigned short __pad1;
1057 unsigned short __pad2;
1058 unsigned int unused1;
1059 unsigned int unused2;
1063 struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
1064 compat_time_t sem_otime; /* last semop time */
1065 compat_time_t sem_ctime; /* last change time */
1066 u32 sem_base; /* ptr to first semaphore in array */
1067 u32 sem_pending; /* pending operations to be processed */
1068 u32 sem_pending_last; /* last pending operation */
1069 u32 undo; /* undo requests on this array */
1070 unsigned short sem_nsems; /* no. of semaphores in array */
1073 struct semid64_ds32 {
1074 struct ipc64_perm32 sem_perm;
1075 compat_time_t sem_otime;
1076 unsigned int __unused1;
1077 compat_time_t sem_ctime;
1078 unsigned int __unused2;
1079 unsigned int sem_nsems;
1080 unsigned int __unused3;
1081 unsigned int __unused4;
1085 struct ipc_perm32 msg_perm;
1088 compat_time_t msg_stime;
1089 compat_time_t msg_rtime;
1090 compat_time_t msg_ctime;
1093 unsigned short msg_cbytes;
1094 unsigned short msg_qnum;
1095 unsigned short msg_qbytes;
1096 compat_ipc_pid_t msg_lspid;
1097 compat_ipc_pid_t msg_lrpid;
1100 struct msqid64_ds32 {
1101 struct ipc64_perm32 msg_perm;
1102 compat_time_t msg_stime;
1103 unsigned int __unused1;
1104 compat_time_t msg_rtime;
1105 unsigned int __unused2;
1106 compat_time_t msg_ctime;
1107 unsigned int __unused3;
1108 unsigned int msg_cbytes;
1109 unsigned int msg_qnum;
1110 unsigned int msg_qbytes;
1111 compat_pid_t msg_lspid;
1112 compat_pid_t msg_lrpid;
1113 unsigned int __unused4;
1114 unsigned int __unused5;
1118 struct ipc_perm32 shm_perm;
1120 compat_time_t shm_atime;
1121 compat_time_t shm_dtime;
1122 compat_time_t shm_ctime;
1123 compat_ipc_pid_t shm_cpid;
1124 compat_ipc_pid_t shm_lpid;
1125 unsigned short shm_nattch;
1128 struct shmid64_ds32 {
1129 struct ipc64_perm32 shm_perm;
1130 compat_size_t shm_segsz;
1131 compat_time_t shm_atime;
1132 unsigned int __unused1;
1133 compat_time_t shm_dtime;
1134 unsigned int __unused2;
1135 compat_time_t shm_ctime;
1136 unsigned int __unused3;
1137 compat_pid_t shm_cpid;
1138 compat_pid_t shm_lpid;
1139 unsigned int shm_nattch;
1140 unsigned int __unused4;
1141 unsigned int __unused5;
1144 struct shminfo64_32 {
1145 unsigned int shmmax;
1146 unsigned int shmmin;
1147 unsigned int shmmni;
1148 unsigned int shmseg;
1149 unsigned int shmall;
1150 unsigned int __unused1;
1151 unsigned int __unused2;
1152 unsigned int __unused3;
1153 unsigned int __unused4;
1158 u32 shm_tot, shm_rss, shm_swp;
1159 u32 swap_attempts, swap_successes;
1170 #define SEMTIMEDOP 4
1180 #define IPCOP_MASK(__x) (1UL << (__x))
1183 ipc_parse_version32 (int *cmd)
1185 if (*cmd & IPC_64) {
1194 semctl32 (int first, int second, int third, void *uptr)
1199 struct semid64_ds s;
1200 mm_segment_t old_fs;
1201 int version = ipc_parse_version32(&third);
1205 if (get_user(pad, (u32 *)uptr))
1207 if (third == SETVAL)
1208 fourth.val = (int)pad;
1210 fourth.__pad = (void *)A(pad);
1227 err = sys_semctl(first, second, third, fourth);
1235 err = sys_semctl(first, second, third, fourth);
1238 if (version == IPC_64) {
1239 struct semid64_ds32 *usp64 = (struct semid64_ds32 *) A(pad);
1241 if (!access_ok(VERIFY_WRITE, usp64, sizeof(*usp64))) {
1245 err2 = __put_user(s.sem_perm.key, &usp64->sem_perm.key);
1246 err2 |= __put_user(s.sem_perm.uid, &usp64->sem_perm.uid);
1247 err2 |= __put_user(s.sem_perm.gid, &usp64->sem_perm.gid);
1248 err2 |= __put_user(s.sem_perm.cuid, &usp64->sem_perm.cuid);
1249 err2 |= __put_user(s.sem_perm.cgid, &usp64->sem_perm.cgid);
1250 err2 |= __put_user(s.sem_perm.mode, &usp64->sem_perm.mode);
1251 err2 |= __put_user(s.sem_perm.seq, &usp64->sem_perm.seq);
1252 err2 |= __put_user(s.sem_otime, &usp64->sem_otime);
1253 err2 |= __put_user(s.sem_ctime, &usp64->sem_ctime);
1254 err2 |= __put_user(s.sem_nsems, &usp64->sem_nsems);
1256 struct semid_ds32 *usp32 = (struct semid_ds32 *) A(pad);
1258 if (!access_ok(VERIFY_WRITE, usp32, sizeof(*usp32))) {
1262 err2 = __put_user(s.sem_perm.key, &usp32->sem_perm.key);
1263 err2 |= __put_user(s.sem_perm.uid, &usp32->sem_perm.uid);
1264 err2 |= __put_user(s.sem_perm.gid, &usp32->sem_perm.gid);
1265 err2 |= __put_user(s.sem_perm.cuid, &usp32->sem_perm.cuid);
1266 err2 |= __put_user(s.sem_perm.cgid, &usp32->sem_perm.cgid);
1267 err2 |= __put_user(s.sem_perm.mode, &usp32->sem_perm.mode);
1268 err2 |= __put_user(s.sem_perm.seq, &usp32->sem_perm.seq);
1269 err2 |= __put_user(s.sem_otime, &usp32->sem_otime);
1270 err2 |= __put_user(s.sem_ctime, &usp32->sem_ctime);
1271 err2 |= __put_user(s.sem_nsems, &usp32->sem_nsems);
1281 do_sys32_msgsnd (int first, int second, int third, void *uptr)
1283 struct msgbuf *p = kmalloc(second + sizeof(struct msgbuf), GFP_USER);
1284 struct msgbuf32 *up = (struct msgbuf32 *)uptr;
1285 mm_segment_t old_fs;
1290 err = get_user(p->mtype, &up->mtype);
1291 err |= copy_from_user(p->mtext, &up->mtext, second);
1296 err = sys_msgsnd(first, p, second, third);
1304 do_sys32_msgrcv (int first, int second, int msgtyp, int third, int version, void *uptr)
1306 struct msgbuf32 *up;
1308 mm_segment_t old_fs;
1312 struct ipc_kludge *uipck = (struct ipc_kludge *)uptr;
1313 struct ipc_kludge ipck;
1319 if (copy_from_user(&ipck, uipck, sizeof(struct ipc_kludge)))
1321 uptr = (void *)A(ipck.msgp);
1322 msgtyp = ipck.msgtyp;
1325 p = kmalloc(second + sizeof(struct msgbuf), GFP_USER);
1330 err = sys_msgrcv(first, p, second, msgtyp, third);
1334 up = (struct msgbuf32 *)uptr;
1335 if (put_user(p->mtype, &up->mtype) || copy_to_user(&up->mtext, p->mtext, err))
1344 msgctl32 (int first, int second, void *uptr)
1346 int err = -EINVAL, err2;
1347 struct msqid64_ds m64;
1348 struct msqid_ds32 *up32 = (struct msqid_ds32 *)uptr;
1349 struct msqid64_ds32 *up64 = (struct msqid64_ds32 *)uptr;
1350 mm_segment_t old_fs;
1351 int version = ipc_parse_version32(&second);
1357 err = sys_msgctl(first, second, (struct msqid_ds *)uptr);
1361 if (version == IPC_64) {
1362 err = get_user(m64.msg_perm.uid, &up64->msg_perm.uid);
1363 err |= get_user(m64.msg_perm.gid, &up64->msg_perm.gid);
1364 err |= get_user(m64.msg_perm.mode, &up64->msg_perm.mode);
1365 err |= get_user(m64.msg_qbytes, &up64->msg_qbytes);
1367 err = get_user(m64.msg_perm.uid, &up32->msg_perm.uid);
1368 err |= get_user(m64.msg_perm.gid, &up32->msg_perm.gid);
1369 err |= get_user(m64.msg_perm.mode, &up32->msg_perm.mode);
1370 err |= get_user(m64.msg_qbytes, &up32->msg_qbytes);
1376 err = sys_msgctl(first, second, &m64);
1384 err = sys_msgctl(first, second, (void *) &m64);
1387 if (version == IPC_64) {
1388 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
1392 err2 = __put_user(m64.msg_perm.key, &up64->msg_perm.key);
1393 err2 |= __put_user(m64.msg_perm.uid, &up64->msg_perm.uid);
1394 err2 |= __put_user(m64.msg_perm.gid, &up64->msg_perm.gid);
1395 err2 |= __put_user(m64.msg_perm.cuid, &up64->msg_perm.cuid);
1396 err2 |= __put_user(m64.msg_perm.cgid, &up64->msg_perm.cgid);
1397 err2 |= __put_user(m64.msg_perm.mode, &up64->msg_perm.mode);
1398 err2 |= __put_user(m64.msg_perm.seq, &up64->msg_perm.seq);
1399 err2 |= __put_user(m64.msg_stime, &up64->msg_stime);
1400 err2 |= __put_user(m64.msg_rtime, &up64->msg_rtime);
1401 err2 |= __put_user(m64.msg_ctime, &up64->msg_ctime);
1402 err2 |= __put_user(m64.msg_cbytes, &up64->msg_cbytes);
1403 err2 |= __put_user(m64.msg_qnum, &up64->msg_qnum);
1404 err2 |= __put_user(m64.msg_qbytes, &up64->msg_qbytes);
1405 err2 |= __put_user(m64.msg_lspid, &up64->msg_lspid);
1406 err2 |= __put_user(m64.msg_lrpid, &up64->msg_lrpid);
1410 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
1414 err2 = __put_user(m64.msg_perm.key, &up32->msg_perm.key);
1415 err2 |= __put_user(m64.msg_perm.uid, &up32->msg_perm.uid);
1416 err2 |= __put_user(m64.msg_perm.gid, &up32->msg_perm.gid);
1417 err2 |= __put_user(m64.msg_perm.cuid, &up32->msg_perm.cuid);
1418 err2 |= __put_user(m64.msg_perm.cgid, &up32->msg_perm.cgid);
1419 err2 |= __put_user(m64.msg_perm.mode, &up32->msg_perm.mode);
1420 err2 |= __put_user(m64.msg_perm.seq, &up32->msg_perm.seq);
1421 err2 |= __put_user(m64.msg_stime, &up32->msg_stime);
1422 err2 |= __put_user(m64.msg_rtime, &up32->msg_rtime);
1423 err2 |= __put_user(m64.msg_ctime, &up32->msg_ctime);
1424 err2 |= __put_user(m64.msg_cbytes, &up32->msg_cbytes);
1425 err2 |= __put_user(m64.msg_qnum, &up32->msg_qnum);
1426 err2 |= __put_user(m64.msg_qbytes, &up32->msg_qbytes);
1427 err2 |= __put_user(m64.msg_lspid, &up32->msg_lspid);
1428 err2 |= __put_user(m64.msg_lrpid, &up32->msg_lrpid);
1438 shmat32 (int first, int second, int third, int version, void *uptr)
1440 unsigned long raddr;
1441 u32 *uaddr = (u32 *)A((u32)third);
1445 return -EINVAL; /* iBCS2 emulator entry point: unsupported */
1446 err = sys_shmat(first, uptr, second, &raddr);
1449 return put_user(raddr, uaddr);
1453 shmctl32 (int first, int second, void *uptr)
1455 int err = -EFAULT, err2;
1457 struct shmid64_ds s64;
1458 struct shmid_ds32 *up32 = (struct shmid_ds32 *)uptr;
1459 struct shmid64_ds32 *up64 = (struct shmid64_ds32 *)uptr;
1460 mm_segment_t old_fs;
1461 struct shm_info32 *uip = (struct shm_info32 *)uptr;
1463 int version = ipc_parse_version32(&second);
1464 struct shminfo64 smi;
1465 struct shminfo *usi32 = (struct shminfo *) uptr;
1466 struct shminfo64_32 *usi64 = (struct shminfo64_32 *) uptr;
1472 err = sys_shmctl(first, second, (struct shmid_ds *)&smi);
1475 if (version == IPC_64) {
1476 if (!access_ok(VERIFY_WRITE, usi64, sizeof(*usi64))) {
1480 err2 = __put_user(smi.shmmax, &usi64->shmmax);
1481 err2 |= __put_user(smi.shmmin, &usi64->shmmin);
1482 err2 |= __put_user(smi.shmmni, &usi64->shmmni);
1483 err2 |= __put_user(smi.shmseg, &usi64->shmseg);
1484 err2 |= __put_user(smi.shmall, &usi64->shmall);
1486 if (!access_ok(VERIFY_WRITE, usi32, sizeof(*usi32))) {
1490 err2 = __put_user(smi.shmmax, &usi32->shmmax);
1491 err2 |= __put_user(smi.shmmin, &usi32->shmmin);
1492 err2 |= __put_user(smi.shmmni, &usi32->shmmni);
1493 err2 |= __put_user(smi.shmseg, &usi32->shmseg);
1494 err2 |= __put_user(smi.shmall, &usi32->shmall);
1503 err = sys_shmctl(first, second, (struct shmid_ds *)uptr);
1507 if (version == IPC_64) {
1508 err = get_user(s64.shm_perm.uid, &up64->shm_perm.uid);
1509 err |= get_user(s64.shm_perm.gid, &up64->shm_perm.gid);
1510 err |= get_user(s64.shm_perm.mode, &up64->shm_perm.mode);
1512 err = get_user(s64.shm_perm.uid, &up32->shm_perm.uid);
1513 err |= get_user(s64.shm_perm.gid, &up32->shm_perm.gid);
1514 err |= get_user(s64.shm_perm.mode, &up32->shm_perm.mode);
1520 err = sys_shmctl(first, second, &s64);
1528 err = sys_shmctl(first, second, (void *) &s64);
1532 if (version == IPC_64) {
1533 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
1537 err2 = __put_user(s64.shm_perm.key, &up64->shm_perm.key);
1538 err2 |= __put_user(s64.shm_perm.uid, &up64->shm_perm.uid);
1539 err2 |= __put_user(s64.shm_perm.gid, &up64->shm_perm.gid);
1540 err2 |= __put_user(s64.shm_perm.cuid, &up64->shm_perm.cuid);
1541 err2 |= __put_user(s64.shm_perm.cgid, &up64->shm_perm.cgid);
1542 err2 |= __put_user(s64.shm_perm.mode, &up64->shm_perm.mode);
1543 err2 |= __put_user(s64.shm_perm.seq, &up64->shm_perm.seq);
1544 err2 |= __put_user(s64.shm_atime, &up64->shm_atime);
1545 err2 |= __put_user(s64.shm_dtime, &up64->shm_dtime);
1546 err2 |= __put_user(s64.shm_ctime, &up64->shm_ctime);
1547 err2 |= __put_user(s64.shm_segsz, &up64->shm_segsz);
1548 err2 |= __put_user(s64.shm_nattch, &up64->shm_nattch);
1549 err2 |= __put_user(s64.shm_cpid, &up64->shm_cpid);
1550 err2 |= __put_user(s64.shm_lpid, &up64->shm_lpid);
1552 if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
1556 err2 = __put_user(s64.shm_perm.key, &up32->shm_perm.key);
1557 err2 |= __put_user(s64.shm_perm.uid, &up32->shm_perm.uid);
1558 err2 |= __put_user(s64.shm_perm.gid, &up32->shm_perm.gid);
1559 err2 |= __put_user(s64.shm_perm.cuid, &up32->shm_perm.cuid);
1560 err2 |= __put_user(s64.shm_perm.cgid, &up32->shm_perm.cgid);
1561 err2 |= __put_user(s64.shm_perm.mode, &up32->shm_perm.mode);
1562 err2 |= __put_user(s64.shm_perm.seq, &up32->shm_perm.seq);
1563 err2 |= __put_user(s64.shm_atime, &up32->shm_atime);
1564 err2 |= __put_user(s64.shm_dtime, &up32->shm_dtime);
1565 err2 |= __put_user(s64.shm_ctime, &up32->shm_ctime);
1566 err2 |= __put_user(s64.shm_segsz, &up32->shm_segsz);
1567 err2 |= __put_user(s64.shm_nattch, &up32->shm_nattch);
1568 err2 |= __put_user(s64.shm_cpid, &up32->shm_cpid);
1569 err2 |= __put_user(s64.shm_lpid, &up32->shm_lpid);
1578 err = sys_shmctl(first, second, (void *)&si);
1583 if (!access_ok(VERIFY_WRITE, uip, sizeof(*uip))) {
1587 err2 = __put_user(si.used_ids, &uip->used_ids);
1588 err2 |= __put_user(si.shm_tot, &uip->shm_tot);
1589 err2 |= __put_user(si.shm_rss, &uip->shm_rss);
1590 err2 |= __put_user(si.shm_swp, &uip->shm_swp);
1591 err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
1592 err2 |= __put_user(si.swap_successes, &uip->swap_successes);
1601 extern int sem_ctls[];
1602 #define sc_semopm (sem_ctls[2])
1605 semtimedop32(int semid, struct sembuf *tsops, int nsops,
1606 struct compat_timespec *timeout32)
1612 /* parameter checking precedence should mirror sys_semtimedop() */
1613 if (nsops < 1 || semid < 0)
1615 if (nsops > sc_semopm)
1617 if (!access_ok(VERIFY_READ, tsops, nsops * sizeof(struct sembuf)) ||
1618 get_compat_timespec(&t, timeout32))
1623 ret = sys_semtimedop(semid, tsops, nsops, &t);
1629 sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
1633 version = call >> 16; /* hack for backward compatibility */
1639 return semtimedop32(first, (struct sembuf *)AA(ptr),
1640 second, (struct compat_timespec *)AA(fifth));
1641 /* else fall through for normal semop() */
1643 /* struct sembuf is the same on 32 and 64bit :)) */
1644 return sys_semtimedop(first, (struct sembuf *)AA(ptr), second,
1647 return sys_semget(first, second, third);
1649 return semctl32(first, second, third, (void *)AA(ptr));
1652 return do_sys32_msgsnd(first, second, third, (void *)AA(ptr));
1654 return do_sys32_msgrcv(first, second, fifth, third, version, (void *)AA(ptr));
1656 return sys_msgget((key_t) first, second);
1658 return msgctl32(first, second, (void *)AA(ptr));
1661 return shmat32(first, second, third, version, (void *)AA(ptr));
1664 return sys_shmdt((char *)AA(ptr));
1666 return sys_shmget(first, second, third);
1668 return shmctl32(first, second, (void *)AA(ptr));
1677 * sys_time() can be implemented in user-level using
1678 * sys_gettimeofday(). IA64 did this but i386 Linux did not
1679 * so we have to implement this system call here.
1682 sys32_time (int *tloc)
1686 /* SMP: This is fairly trivial. We grab CURRENT_TIME and
1687 stuff it to user space. No side effects */
1690 if (put_user(i, tloc))
1697 sys32_waitpid (int pid, unsigned int *stat_addr, int options)
1699 return compat_sys_wait4(pid, stat_addr, options, NULL);
1703 ia32_peek (struct pt_regs *regs, struct task_struct *child, unsigned long addr, unsigned int *val)
1708 copied = access_process_vm(child, addr, val, sizeof(*val), 0);
1709 return (copied != sizeof(ret)) ? -EIO : 0;
1713 ia32_poke (struct pt_regs *regs, struct task_struct *child, unsigned long addr, unsigned int val)
1716 if (access_process_vm(child, addr, &val, sizeof(val), 1) != sizeof(val))
1722 * The order in which registers are stored in the ptrace regs structure
1735 #define PT_ORIG_EAX 11
1743 getreg (struct task_struct *child, int regno)
1745 struct pt_regs *child_regs;
1747 child_regs = ia64_task_regs(child);
1748 switch (regno / sizeof(int)) {
1749 case PT_EBX: return child_regs->r11;
1750 case PT_ECX: return child_regs->r9;
1751 case PT_EDX: return child_regs->r10;
1752 case PT_ESI: return child_regs->r14;
1753 case PT_EDI: return child_regs->r15;
1754 case PT_EBP: return child_regs->r13;
1755 case PT_EAX: return child_regs->r8;
1756 case PT_ORIG_EAX: return child_regs->r1; /* see dispatch_to_ia32_handler() */
1757 case PT_EIP: return child_regs->cr_iip;
1758 case PT_UESP: return child_regs->r12;
1759 case PT_EFL: return child->thread.eflag;
1760 case PT_DS: case PT_ES: case PT_FS: case PT_GS: case PT_SS:
1762 case PT_CS: return __USER_CS;
1764 printk(KERN_ERR "ia32.getreg(): unknown register %d\n", regno);
1771 putreg (struct task_struct *child, int regno, unsigned int value)
1773 struct pt_regs *child_regs;
1775 child_regs = ia64_task_regs(child);
1776 switch (regno / sizeof(int)) {
1777 case PT_EBX: child_regs->r11 = value; break;
1778 case PT_ECX: child_regs->r9 = value; break;
1779 case PT_EDX: child_regs->r10 = value; break;
1780 case PT_ESI: child_regs->r14 = value; break;
1781 case PT_EDI: child_regs->r15 = value; break;
1782 case PT_EBP: child_regs->r13 = value; break;
1783 case PT_EAX: child_regs->r8 = value; break;
1784 case PT_ORIG_EAX: child_regs->r1 = value; break;
1785 case PT_EIP: child_regs->cr_iip = value; break;
1786 case PT_UESP: child_regs->r12 = value; break;
1787 case PT_EFL: child->thread.eflag = value; break;
1788 case PT_DS: case PT_ES: case PT_FS: case PT_GS: case PT_SS:
1789 if (value != __USER_DS)
1791 "ia32.putreg: attempt to set invalid segment register %d = %x\n",
1795 if (value != __USER_CS)
1797 "ia32.putreg: attempt to to set invalid segment register %d = %x\n",
1801 printk(KERN_ERR "ia32.putreg: unknown register %d\n", regno);
1807 put_fpreg (int regno, struct _fpreg_ia32 *reg, struct pt_regs *ptp, struct switch_stack *swp,
1810 struct _fpreg_ia32 *f;
1813 f = (struct _fpreg_ia32 *)(((unsigned long)buf + 15) & ~15);
1814 if ((regno += tos) >= 8)
1818 ia64f2ia32f(f, &ptp->f8);
1821 ia64f2ia32f(f, &ptp->f9);
1824 ia64f2ia32f(f, &ptp->f10);
1827 ia64f2ia32f(f, &ptp->f11);
1833 ia64f2ia32f(f, &swp->f12 + (regno - 4));
1836 copy_to_user(reg, f, sizeof(*reg));
1840 get_fpreg (int regno, struct _fpreg_ia32 *reg, struct pt_regs *ptp, struct switch_stack *swp,
1844 if ((regno += tos) >= 8)
1848 copy_from_user(&ptp->f8, reg, sizeof(*reg));
1851 copy_from_user(&ptp->f9, reg, sizeof(*reg));
1854 copy_from_user(&ptp->f10, reg, sizeof(*reg));
1857 copy_from_user(&ptp->f11, reg, sizeof(*reg));
1863 copy_from_user(&swp->f12 + (regno - 4), reg, sizeof(*reg));
1870 save_ia32_fpstate (struct task_struct *tsk, struct ia32_user_i387_struct *save)
1872 struct switch_stack *swp;
1873 struct pt_regs *ptp;
1876 if (!access_ok(VERIFY_WRITE, save, sizeof(*save)))
1879 __put_user(tsk->thread.fcr & 0xffff, &save->cwd);
1880 __put_user(tsk->thread.fsr & 0xffff, &save->swd);
1881 __put_user((tsk->thread.fsr>>16) & 0xffff, &save->twd);
1882 __put_user(tsk->thread.fir, &save->fip);
1883 __put_user((tsk->thread.fir>>32) & 0xffff, &save->fcs);
1884 __put_user(tsk->thread.fdr, &save->foo);
1885 __put_user((tsk->thread.fdr>>32) & 0xffff, &save->fos);
1888 * Stack frames start with 16-bytes of temp space
1890 swp = (struct switch_stack *)(tsk->thread.ksp + 16);
1891 ptp = ia64_task_regs(tsk);
1892 tos = (tsk->thread.fsr >> 11) & 7;
1893 for (i = 0; i < 8; i++)
1894 put_fpreg(i, &save->st_space[i], ptp, swp, tos);
1899 restore_ia32_fpstate (struct task_struct *tsk, struct ia32_user_i387_struct *save)
1901 struct switch_stack *swp;
1902 struct pt_regs *ptp;
1904 unsigned int fsrlo, fsrhi, num32;
1906 if (!access_ok(VERIFY_READ, save, sizeof(*save)))
1909 __get_user(num32, (unsigned int *)&save->cwd);
1910 tsk->thread.fcr = (tsk->thread.fcr & (~0x1f3f)) | (num32 & 0x1f3f);
1911 __get_user(fsrlo, (unsigned int *)&save->swd);
1912 __get_user(fsrhi, (unsigned int *)&save->twd);
1913 num32 = (fsrhi << 16) | fsrlo;
1914 tsk->thread.fsr = (tsk->thread.fsr & (~0xffffffff)) | num32;
1915 __get_user(num32, (unsigned int *)&save->fip);
1916 tsk->thread.fir = (tsk->thread.fir & (~0xffffffff)) | num32;
1917 __get_user(num32, (unsigned int *)&save->foo);
1918 tsk->thread.fdr = (tsk->thread.fdr & (~0xffffffff)) | num32;
1921 * Stack frames start with 16-bytes of temp space
1923 swp = (struct switch_stack *)(tsk->thread.ksp + 16);
1924 ptp = ia64_task_regs(tsk);
1925 tos = (tsk->thread.fsr >> 11) & 7;
1926 for (i = 0; i < 8; i++)
1927 get_fpreg(i, &save->st_space[i], ptp, swp, tos);
1932 save_ia32_fpxstate (struct task_struct *tsk, struct ia32_user_fxsr_struct *save)
1934 struct switch_stack *swp;
1935 struct pt_regs *ptp;
1937 unsigned long mxcsr=0;
1938 unsigned long num128[2];
1940 if (!access_ok(VERIFY_WRITE, save, sizeof(*save)))
1943 __put_user(tsk->thread.fcr & 0xffff, &save->cwd);
1944 __put_user(tsk->thread.fsr & 0xffff, &save->swd);
1945 __put_user((tsk->thread.fsr>>16) & 0xffff, &save->twd);
1946 __put_user(tsk->thread.fir, &save->fip);
1947 __put_user((tsk->thread.fir>>32) & 0xffff, &save->fcs);
1948 __put_user(tsk->thread.fdr, &save->foo);
1949 __put_user((tsk->thread.fdr>>32) & 0xffff, &save->fos);
1952 * Stack frames start with 16-bytes of temp space
1954 swp = (struct switch_stack *)(tsk->thread.ksp + 16);
1955 ptp = ia64_task_regs(tsk);
1956 tos = (tsk->thread.fsr >> 11) & 7;
1957 for (i = 0; i < 8; i++)
1958 put_fpreg(i, (struct _fpreg_ia32 *)&save->st_space[4*i], ptp, swp, tos);
1960 mxcsr = ((tsk->thread.fcr>>32) & 0xff80) | ((tsk->thread.fsr>>32) & 0x3f);
1961 __put_user(mxcsr & 0xffff, &save->mxcsr);
1962 for (i = 0; i < 8; i++) {
1963 memcpy(&(num128[0]), &(swp->f16) + i*2, sizeof(unsigned long));
1964 memcpy(&(num128[1]), &(swp->f17) + i*2, sizeof(unsigned long));
1965 copy_to_user(&save->xmm_space[0] + 4*i, num128, sizeof(struct _xmmreg_ia32));
1971 restore_ia32_fpxstate (struct task_struct *tsk, struct ia32_user_fxsr_struct *save)
1973 struct switch_stack *swp;
1974 struct pt_regs *ptp;
1976 unsigned int fsrlo, fsrhi, num32;
1978 unsigned long num64;
1979 unsigned long num128[2];
1981 if (!access_ok(VERIFY_READ, save, sizeof(*save)))
1984 __get_user(num32, (unsigned int *)&save->cwd);
1985 tsk->thread.fcr = (tsk->thread.fcr & (~0x1f3f)) | (num32 & 0x1f3f);
1986 __get_user(fsrlo, (unsigned int *)&save->swd);
1987 __get_user(fsrhi, (unsigned int *)&save->twd);
1988 num32 = (fsrhi << 16) | fsrlo;
1989 tsk->thread.fsr = (tsk->thread.fsr & (~0xffffffff)) | num32;
1990 __get_user(num32, (unsigned int *)&save->fip);
1991 tsk->thread.fir = (tsk->thread.fir & (~0xffffffff)) | num32;
1992 __get_user(num32, (unsigned int *)&save->foo);
1993 tsk->thread.fdr = (tsk->thread.fdr & (~0xffffffff)) | num32;
1996 * Stack frames start with 16-bytes of temp space
1998 swp = (struct switch_stack *)(tsk->thread.ksp + 16);
1999 ptp = ia64_task_regs(tsk);
2000 tos = (tsk->thread.fsr >> 11) & 7;
2001 for (i = 0; i < 8; i++)
2002 get_fpreg(i, (struct _fpreg_ia32 *)&save->st_space[4*i], ptp, swp, tos);
2004 __get_user(mxcsr, (unsigned int *)&save->mxcsr);
2005 num64 = mxcsr & 0xff10;
2006 tsk->thread.fcr = (tsk->thread.fcr & (~0xff1000000000)) | (num64<<32);
2007 num64 = mxcsr & 0x3f;
2008 tsk->thread.fsr = (tsk->thread.fsr & (~0x3f00000000)) | (num64<<32);
2010 for (i = 0; i < 8; i++) {
2011 copy_from_user(num128, &save->xmm_space[0] + 4*i, sizeof(struct _xmmreg_ia32));
2012 memcpy(&(swp->f16) + i*2, &(num128[0]), sizeof(unsigned long));
2013 memcpy(&(swp->f17) + i*2, &(num128[1]), sizeof(unsigned long));
2018 extern asmlinkage long sys_ptrace (long, pid_t, unsigned long, unsigned long, long, long, long,
2022 * Note that the IA32 version of `ptrace' calls the IA64 routine for
2023 * many of the requests. This will only work for requests that do
2024 * not need access to the calling processes `pt_regs' which is located
2025 * at the address of `stack'. Once we call the IA64 `sys_ptrace' then
2026 * the address of `stack' will not be the address of the `pt_regs'.
2029 sys32_ptrace (int request, pid_t pid, unsigned int addr, unsigned int data,
2030 long arg4, long arg5, long arg6, long arg7, long stack)
2032 struct pt_regs *regs = (struct pt_regs *) &stack;
2033 struct task_struct *child;
2034 unsigned int value, tmp;
2038 if (request == PTRACE_TRACEME) {
2039 ret = sys_ptrace(request, pid, addr, data, arg4, arg5, arg6, arg7, stack);
2044 read_lock(&tasklist_lock);
2045 child = find_task_by_pid(pid);
2047 get_task_struct(child);
2048 read_unlock(&tasklist_lock);
2052 if (pid == 1) /* no messing around with init! */
2055 if (request == PTRACE_ATTACH) {
2056 ret = sys_ptrace(request, pid, addr, data, arg4, arg5, arg6, arg7, stack);
2060 ret = ptrace_check_attach(child, request == PTRACE_KILL);
2065 case PTRACE_PEEKTEXT:
2066 case PTRACE_PEEKDATA: /* read word at location addr */
2067 ret = ia32_peek(regs, child, addr, &value);
2069 ret = put_user(value, (unsigned int *) A(data));
2074 case PTRACE_POKETEXT:
2075 case PTRACE_POKEDATA: /* write the word at location addr */
2076 ret = ia32_poke(regs, child, addr, data);
2079 case PTRACE_PEEKUSR: /* read word at addr in USER area */
2081 if ((addr & 3) || addr > 17*sizeof(int))
2084 tmp = getreg(child, addr);
2085 if (!put_user(tmp, (unsigned int *) A(data)))
2089 case PTRACE_POKEUSR: /* write word at addr in USER area */
2091 if ((addr & 3) || addr > 17*sizeof(int))
2094 putreg(child, addr, data);
2098 case IA32_PTRACE_GETREGS:
2099 if (!access_ok(VERIFY_WRITE, (int *) A(data), 17*sizeof(int))) {
2103 for (i = 0; i < (int) (17*sizeof(int)); i += sizeof(int) ) {
2104 put_user(getreg(child, i), (unsigned int *) A(data));
2105 data += sizeof(int);
2110 case IA32_PTRACE_SETREGS:
2111 if (!access_ok(VERIFY_READ, (int *) A(data), 17*sizeof(int))) {
2115 for (i = 0; i < (int) (17*sizeof(int)); i += sizeof(int) ) {
2116 get_user(tmp, (unsigned int *) A(data));
2117 putreg(child, i, tmp);
2118 data += sizeof(int);
2123 case IA32_PTRACE_GETFPREGS:
2124 ret = save_ia32_fpstate(child, (struct ia32_user_i387_struct *) A(data));
2127 case IA32_PTRACE_GETFPXREGS:
2128 ret = save_ia32_fpxstate(child, (struct ia32_user_fxsr_struct *) A(data));
2131 case IA32_PTRACE_SETFPREGS:
2132 ret = restore_ia32_fpstate(child, (struct ia32_user_i387_struct *) A(data));
2135 case IA32_PTRACE_SETFPXREGS:
2136 ret = restore_ia32_fpxstate(child, (struct ia32_user_fxsr_struct *) A(data));
2139 case PTRACE_SYSCALL: /* continue, stop after next syscall */
2140 case PTRACE_CONT: /* restart after signal. */
2142 case PTRACE_SINGLESTEP: /* execute chile for one instruction */
2143 case PTRACE_DETACH: /* detach a process */
2144 ret = sys_ptrace(request, pid, addr, data, arg4, arg5, arg6, arg7, stack);
2148 ret = ptrace_request(child, request, addr, data);
2153 put_task_struct(child);
2159 asmlinkage long sys_ni_syscall(void);
2162 sys32_ni_syscall (int dummy0, int dummy1, int dummy2, int dummy3, int dummy4, int dummy5,
2163 int dummy6, int dummy7, int stack)
2165 struct pt_regs *regs = (struct pt_regs *)&stack;
2167 printk(KERN_WARNING "IA32 syscall #%d issued, maybe we should implement it\n",
2169 return(sys_ni_syscall());
2173 * The IA64 maps 4 I/O ports for each 4K page
2175 #define IOLEN ((65536 / 4) * 4096)
2178 sys32_iopl (int level)
2180 extern unsigned long ia64_iobase;
2185 mm_segment_t old_fs = get_fs ();
2189 /* Trying to gain more privileges? */
2190 asm volatile ("mov %0=ar.eflag ;;" : "=r"(old));
2191 if ((unsigned int) level > ((old >> 12) & 3)) {
2192 if (!capable(CAP_SYS_RAWIO))
2196 fd = sys_open("/dev/mem", O_SYNC | O_RDWR, 0);
2206 down_write(¤t->mm->mmap_sem);
2207 addr = do_mmap_pgoff(current->mm, file, IA32_IOBASE,
2208 IOLEN, PROT_READ|PROT_WRITE, MAP_SHARED,
2209 (ia64_iobase & ~PAGE_OFFSET) >> PAGE_SHIFT);
2210 up_write(¤t->mm->mmap_sem);
2213 old = (old & ~0x3000) | (level << 12);
2214 asm volatile ("mov ar.eflag=%0;;" :: "r"(old));
2223 sys32_ioperm (unsigned int from, unsigned int num, int on)
2227 * Since IA64 doesn't have permission bits we'd have to go to
2228 * a lot of trouble to simulate them in software. There's
2229 * no point, only trusted programs can make this call so we'll
2230 * just turn it into an iopl call and let the process have
2231 * access to all I/O ports.
2233 * XXX proper ioperm() support should be emulated by
2234 * manipulating the page protections...
2236 return sys32_iopl(3);
2241 unsigned int ss_flags;
2242 unsigned int ss_size;
2246 sys32_sigaltstack (ia32_stack_t *uss32, ia32_stack_t *uoss32,
2247 long arg2, long arg3, long arg4, long arg5, long arg6, long arg7, long stack)
2249 struct pt_regs *pt = (struct pt_regs *) &stack;
2253 mm_segment_t old_fs = get_fs();
2256 if (copy_from_user(&buf32, uss32, sizeof(ia32_stack_t)))
2258 uss.ss_sp = (void *) (long) buf32.ss_sp;
2259 uss.ss_flags = buf32.ss_flags;
2260 uss.ss_size = buf32.ss_size;
2262 ret = do_sigaltstack(uss32 ? &uss : NULL, &uoss, pt->r12);
2267 buf32.ss_sp = (long) uoss.ss_sp;
2268 buf32.ss_flags = uoss.ss_flags;
2269 buf32.ss_size = uoss.ss_size;
2270 if (copy_to_user(uoss32, &buf32, sizeof(ia32_stack_t)))
2279 current->state = TASK_INTERRUPTIBLE;
2281 return -ERESTARTNOHAND;
2284 asmlinkage long sys_msync (unsigned long start, size_t len, int flags);
2287 sys32_msync (unsigned int start, unsigned int len, int flags)
2291 if (OFFSET4K(start))
2293 addr = PAGE_START(start);
2294 return sys_msync(addr, len + (start - addr), flags);
2300 unsigned int oldval;
2301 unsigned int oldlenp;
2302 unsigned int newval;
2303 unsigned int newlen;
2304 unsigned int __unused[4];
2307 extern asmlinkage long sys_sysctl(struct __sysctl_args *args);
2310 sys32_sysctl (struct sysctl32 *args)
2312 #ifdef CONFIG_SYSCTL
2313 struct sysctl32 a32;
2314 mm_segment_t old_fs = get_fs ();
2315 void *oldvalp, *newvalp;
2320 if (copy_from_user(&a32, args, sizeof(a32)))
2324 * We need to pre-validate these because we have to disable address checking
2325 * before calling do_sysctl() because of OLDLEN but we can't run the risk of the
2326 * user specifying bad addresses here. Well, since we're dealing with 32 bit
2327 * addresses, we KNOW that access_ok() will always succeed, so this is an
2328 * expensive NOP, but so what...
2330 namep = (int *) A(a32.name);
2331 oldvalp = (void *) A(a32.oldval);
2332 newvalp = (void *) A(a32.newval);
2334 if ((oldvalp && get_user(oldlen, (int *) A(a32.oldlenp)))
2335 || !access_ok(VERIFY_WRITE, namep, 0)
2336 || !access_ok(VERIFY_WRITE, oldvalp, 0)
2337 || !access_ok(VERIFY_WRITE, newvalp, 0))
2342 ret = do_sysctl(namep, a32.nlen, oldvalp, &oldlen, newvalp, (size_t) a32.newlen);
2346 if (oldvalp && put_user (oldlen, (int *) A(a32.oldlenp)))
2356 sys32_newuname (struct new_utsname *name)
2358 extern asmlinkage long sys_newuname(struct new_utsname * name);
2359 int ret = sys_newuname(name);
2362 if (copy_to_user(name->machine, "i686\0\0\0", 8))
2367 extern asmlinkage long sys_getresuid (uid_t *ruid, uid_t *euid, uid_t *suid);
2370 sys32_getresuid16 (u16 *ruid, u16 *euid, u16 *suid)
2374 mm_segment_t old_fs = get_fs();
2377 ret = sys_getresuid(&a, &b, &c);
2380 if (put_user(a, ruid) || put_user(b, euid) || put_user(c, suid))
2385 extern asmlinkage long sys_getresgid (gid_t *rgid, gid_t *egid, gid_t *sgid);
2388 sys32_getresgid16 (u16 *rgid, u16 *egid, u16 *sgid)
2392 mm_segment_t old_fs = get_fs();
2395 ret = sys_getresgid(&a, &b, &c);
2401 return put_user(a, rgid) | put_user(b, egid) | put_user(c, sgid);
2405 sys32_lseek (unsigned int fd, int offset, unsigned int whence)
2407 extern off_t sys_lseek (unsigned int fd, off_t offset, unsigned int origin);
2409 /* Sign-extension of "offset" is important here... */
2410 return sys_lseek(fd, offset, whence);
2413 extern asmlinkage long sys_getgroups (int gidsetsize, gid_t *grouplist);
2416 sys32_getgroups16 (int gidsetsize, short *grouplist)
2418 mm_segment_t old_fs = get_fs();
2423 ret = sys_getgroups(gidsetsize, gl);
2426 if (gidsetsize && ret > 0 && ret <= NGROUPS)
2427 for (i = 0; i < ret; i++, grouplist++)
2428 if (put_user(gl[i], grouplist))
2433 extern asmlinkage long sys_setgroups (int gidsetsize, gid_t *grouplist);
2436 sys32_setgroups16 (int gidsetsize, short *grouplist)
2438 mm_segment_t old_fs = get_fs();
2442 if ((unsigned) gidsetsize > NGROUPS)
2444 for (i = 0; i < gidsetsize; i++, grouplist++)
2445 if (get_user(gl[i], grouplist))
2448 ret = sys_setgroups(gidsetsize, gl);
2454 sys32_truncate64 (unsigned int path, unsigned int len_lo, unsigned int len_hi)
2456 extern asmlinkage long sys_truncate (const char *path, unsigned long length);
2458 return sys_truncate((const char *) A(path), ((unsigned long) len_hi << 32) | len_lo);
2462 sys32_ftruncate64 (int fd, unsigned int len_lo, unsigned int len_hi)
2464 extern asmlinkage long sys_ftruncate (int fd, unsigned long length);
2466 return sys_ftruncate(fd, ((unsigned long) len_hi << 32) | len_lo);
2470 putstat64 (struct stat64 *ubuf, struct kstat *kbuf)
2474 if (clear_user(ubuf, sizeof(*ubuf)))
2477 err = __put_user(kbuf->dev, &ubuf->st_dev);
2478 err |= __put_user(kbuf->ino, &ubuf->__st_ino);
2479 err |= __put_user(kbuf->ino, &ubuf->st_ino_lo);
2480 err |= __put_user(kbuf->ino >> 32, &ubuf->st_ino_hi);
2481 err |= __put_user(kbuf->mode, &ubuf->st_mode);
2482 err |= __put_user(kbuf->nlink, &ubuf->st_nlink);
2483 err |= __put_user(kbuf->uid, &ubuf->st_uid);
2484 err |= __put_user(kbuf->gid, &ubuf->st_gid);
2485 err |= __put_user(kbuf->rdev, &ubuf->st_rdev);
2486 err |= __put_user(kbuf->size, &ubuf->st_size_lo);
2487 err |= __put_user((kbuf->size >> 32), &ubuf->st_size_hi);
2488 err |= __put_user(kbuf->atime.tv_sec, &ubuf->st_atime);
2489 err |= __put_user(kbuf->atime.tv_nsec, &ubuf->st_atime_nsec);
2490 err |= __put_user(kbuf->mtime.tv_sec, &ubuf->st_mtime);
2491 err |= __put_user(kbuf->mtime.tv_nsec, &ubuf->st_mtime_nsec);
2492 err |= __put_user(kbuf->ctime.tv_sec, &ubuf->st_ctime);
2493 err |= __put_user(kbuf->ctime.tv_nsec, &ubuf->st_ctime_nsec);
2494 err |= __put_user(kbuf->blksize, &ubuf->st_blksize);
2495 err |= __put_user(kbuf->blocks, &ubuf->st_blocks);
2500 sys32_stat64 (char *filename, struct stat64 *statbuf)
2503 long ret = vfs_stat(filename, &s);
2505 ret = putstat64(statbuf, &s);
2510 sys32_lstat64 (char *filename, struct stat64 *statbuf)
2513 long ret = vfs_lstat(filename, &s);
2515 ret = putstat64(statbuf, &s);
2520 sys32_fstat64 (unsigned int fd, struct stat64 *statbuf)
2523 long ret = vfs_fstat(fd, &s);
2525 ret = putstat64(statbuf, &s);
2547 sys32_sysinfo (struct sysinfo32 *info)
2549 extern asmlinkage long sys_sysinfo (struct sysinfo *);
2553 mm_segment_t old_fs = get_fs();
2556 ret = sys_sysinfo(&s);
2558 /* Check to see if any memory value is too large for 32-bit and
2559 * scale down if needed.
2561 if ((s.totalram >> 32) || (s.totalswap >> 32)) {
2562 while (s.mem_unit < PAGE_SIZE) {
2566 s.totalram >>= bitcount;
2567 s.freeram >>= bitcount;
2568 s.sharedram >>= bitcount;
2569 s.bufferram >>= bitcount;
2570 s.totalswap >>= bitcount;
2571 s.freeswap >>= bitcount;
2572 s.totalhigh >>= bitcount;
2573 s.freehigh >>= bitcount;
2576 if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
2579 err = __put_user(s.uptime, &info->uptime);
2580 err |= __put_user(s.loads[0], &info->loads[0]);
2581 err |= __put_user(s.loads[1], &info->loads[1]);
2582 err |= __put_user(s.loads[2], &info->loads[2]);
2583 err |= __put_user(s.totalram, &info->totalram);
2584 err |= __put_user(s.freeram, &info->freeram);
2585 err |= __put_user(s.sharedram, &info->sharedram);
2586 err |= __put_user(s.bufferram, &info->bufferram);
2587 err |= __put_user(s.totalswap, &info->totalswap);
2588 err |= __put_user(s.freeswap, &info->freeswap);
2589 err |= __put_user(s.procs, &info->procs);
2590 err |= __put_user (s.totalhigh, &info->totalhigh);
2591 err |= __put_user (s.freehigh, &info->freehigh);
2592 err |= __put_user (s.mem_unit, &info->mem_unit);
2599 sys32_sched_rr_get_interval (pid_t pid, struct compat_timespec *interval)
2601 extern asmlinkage long sys_sched_rr_get_interval (pid_t, struct timespec *);
2602 mm_segment_t old_fs = get_fs();
2607 ret = sys_sched_rr_get_interval(pid, &t);
2609 if (put_compat_timespec(&t, interval))
2615 sys32_pread (unsigned int fd, void *buf, unsigned int count, u32 pos_lo, u32 pos_hi)
2617 extern asmlinkage long sys_pread64 (unsigned int, char *, size_t, loff_t);
2618 return sys_pread64(fd, buf, count, ((unsigned long) pos_hi << 32) | pos_lo);
2622 sys32_pwrite (unsigned int fd, void *buf, unsigned int count, u32 pos_lo, u32 pos_hi)
2624 extern asmlinkage long sys_pwrite64 (unsigned int, const char *, size_t, loff_t);
2625 return sys_pwrite64(fd, buf, count, ((unsigned long) pos_hi << 32) | pos_lo);
2629 sys32_sendfile (int out_fd, int in_fd, int *offset, unsigned int count)
2631 extern asmlinkage long sys_sendfile (int, int, off_t *, size_t);
2632 mm_segment_t old_fs = get_fs();
2636 if (offset && get_user(of, offset))
2640 ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
2643 if (!ret && offset && put_user(of, offset))
2650 sys32_personality (unsigned int personality)
2652 extern asmlinkage long sys_personality (unsigned long);
2655 if (current->personality == PER_LINUX32 && personality == PER_LINUX)
2656 personality = PER_LINUX32;
2657 ret = sys_personality(personality);
2658 if (ret == PER_LINUX32)
2663 asmlinkage unsigned long
2664 sys32_brk (unsigned int brk)
2666 unsigned long ret, obrk;
2667 struct mm_struct *mm = current->mm;
2672 clear_user((void *) ret, PAGE_ALIGN(ret) - ret);
2677 * Exactly like fs/open.c:sys_open(), except that it doesn't set the O_LARGEFILE flag.
2680 sys32_open (const char * filename, int flags, int mode)
2685 tmp = getname(filename);
2688 fd = get_unused_fd();
2690 struct file *f = filp_open(tmp, flags, mode);
2707 #ifdef NOTYET /* UNTESTED FOR IA64 FROM HERE DOWN */
2709 struct ncp_mount_data32 {
2711 unsigned int ncp_fd;
2712 compat_uid_t mounted_uid;
2714 unsigned char mounted_vol[NCP_VOLNAME_LEN + 1];
2715 unsigned int time_out;
2716 unsigned int retry_count;
2720 compat_mode_t file_mode;
2721 compat_mode_t dir_mode;
2725 do_ncp_super_data_conv(void *raw_data)
2727 struct ncp_mount_data *n = (struct ncp_mount_data *)raw_data;
2728 struct ncp_mount_data32 *n32 = (struct ncp_mount_data32 *)raw_data;
2730 n->dir_mode = n32->dir_mode;
2731 n->file_mode = n32->file_mode;
2734 memmove (n->mounted_vol, n32->mounted_vol,
2735 (sizeof (n32->mounted_vol) + 3 * sizeof (unsigned int)));
2736 n->wdog_pid = n32->wdog_pid;
2737 n->mounted_uid = n32->mounted_uid;
2741 struct smb_mount_data32 {
2743 compat_uid_t mounted_uid;
2746 compat_mode_t file_mode;
2747 compat_mode_t dir_mode;
2751 do_smb_super_data_conv(void *raw_data)
2753 struct smb_mount_data *s = (struct smb_mount_data *)raw_data;
2754 struct smb_mount_data32 *s32 = (struct smb_mount_data32 *)raw_data;
2756 if (s32->version != SMB_MOUNT_OLDVERSION)
2758 s->version = s32->version;
2759 s->mounted_uid = s32->mounted_uid;
2762 s->file_mode = s32->file_mode;
2763 s->dir_mode = s32->dir_mode;
2769 copy_mount_stuff_to_kernel(const void *user, unsigned long *kernel)
2773 struct vm_area_struct *vma;
2778 vma = find_vma(current->mm, (unsigned long)user);
2779 if(!vma || (unsigned long)user < vma->vm_start)
2781 if(!(vma->vm_flags & VM_READ))
2783 i = vma->vm_end - (unsigned long) user;
2784 if(PAGE_SIZE <= (unsigned long) i)
2786 if(!(page = __get_free_page(GFP_KERNEL)))
2788 if(copy_from_user((void *) page, user, i)) {
2796 extern asmlinkage long sys_mount(char * dev_name, char * dir_name, char * type,
2797 unsigned long new_flags, void *data);
2799 #define SMBFS_NAME "smbfs"
2800 #define NCPFS_NAME "ncpfs"
2803 sys32_mount(char *dev_name, char *dir_name, char *type,
2804 unsigned long new_flags, u32 data)
2806 unsigned long type_page;
2807 int err, is_smb, is_ncp;
2809 if(!capable(CAP_SYS_ADMIN))
2811 is_smb = is_ncp = 0;
2812 err = copy_mount_stuff_to_kernel((const void *)type, &type_page);
2816 is_smb = !strcmp((char *)type_page, SMBFS_NAME);
2817 is_ncp = !strcmp((char *)type_page, NCPFS_NAME);
2819 if(!is_smb && !is_ncp) {
2821 free_page(type_page);
2822 return sys_mount(dev_name, dir_name, type, new_flags,
2825 unsigned long dev_page, dir_page, data_page;
2827 err = copy_mount_stuff_to_kernel((const void *)dev_name,
2831 err = copy_mount_stuff_to_kernel((const void *)dir_name,
2835 err = copy_mount_stuff_to_kernel((const void *)AA(data),
2840 do_ncp_super_data_conv((void *)data_page);
2842 do_smb_super_data_conv((void *)data_page);
2844 panic("The problem is here...");
2845 err = do_mount((char *)dev_page, (char *)dir_page,
2846 (char *)type_page, new_flags,
2849 free_page(data_page);
2852 free_page(dir_page);
2855 free_page(dev_page);
2858 free_page(type_page);
2863 extern asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
2865 asmlinkage long sys32_setreuid(compat_uid_t ruid, compat_uid_t euid)
2869 sruid = (ruid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)ruid);
2870 seuid = (euid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)euid);
2871 return sys_setreuid(sruid, seuid);
2874 extern asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
2877 sys32_setresuid(compat_uid_t ruid, compat_uid_t euid,
2880 uid_t sruid, seuid, ssuid;
2882 sruid = (ruid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)ruid);
2883 seuid = (euid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)euid);
2884 ssuid = (suid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)suid);
2885 return sys_setresuid(sruid, seuid, ssuid);
2888 extern asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
2891 sys32_setregid(compat_gid_t rgid, compat_gid_t egid)
2895 srgid = (rgid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)rgid);
2896 segid = (egid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)egid);
2897 return sys_setregid(srgid, segid);
2900 extern asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
2903 sys32_setresgid(compat_gid_t rgid, compat_gid_t egid,
2906 gid_t srgid, segid, ssgid;
2908 srgid = (rgid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)rgid);
2909 segid = (egid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)egid);
2910 ssgid = (sgid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)sgid);
2911 return sys_setresgid(srgid, segid, ssgid);
2914 /* Stuff for NFS server syscalls... */
2915 struct nfsctl_svc32 {
2920 struct nfsctl_client32 {
2921 s8 cl32_ident[NFSCLNT_IDMAX+1];
2923 struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
2926 u8 cl32_fhkey[NFSCLNT_KEYMAX];
2929 struct nfsctl_export32 {
2930 s8 ex32_client[NFSCLNT_IDMAX+1];
2931 s8 ex32_path[NFS_MAXPATHLEN+1];
2932 compat_dev_t ex32_dev;
2933 compat_ino_t ex32_ino;
2935 compat_uid_t ex32_anon_uid;
2936 compat_gid_t ex32_anon_gid;
2939 struct nfsctl_arg32 {
2940 s32 ca32_version; /* safeguard */
2942 struct nfsctl_svc32 u32_svc;
2943 struct nfsctl_client32 u32_client;
2944 struct nfsctl_export32 u32_export;
2947 #define ca32_svc u.u32_svc
2948 #define ca32_client u.u32_client
2949 #define ca32_export u.u32_export
2950 #define ca32_debug u.u32_debug
2953 union nfsctl_res32 {
2954 struct knfs_fh cr32_getfh;
2959 nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2963 err = __get_user(karg->ca_version, &arg32->ca32_version);
2964 err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
2965 err |= __get_user(karg->ca_svc.svc_nthreads,
2966 &arg32->ca32_svc.svc32_nthreads);
2971 nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2975 err = __get_user(karg->ca_version, &arg32->ca32_version);
2976 err |= copy_from_user(&karg->ca_client.cl_ident[0],
2977 &arg32->ca32_client.cl32_ident[0],
2979 err |= __get_user(karg->ca_client.cl_naddr,
2980 &arg32->ca32_client.cl32_naddr);
2981 err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
2982 &arg32->ca32_client.cl32_addrlist[0],
2983 (sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
2984 err |= __get_user(karg->ca_client.cl_fhkeytype,
2985 &arg32->ca32_client.cl32_fhkeytype);
2986 err |= __get_user(karg->ca_client.cl_fhkeylen,
2987 &arg32->ca32_client.cl32_fhkeylen);
2988 err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
2989 &arg32->ca32_client.cl32_fhkey[0],
2995 nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
2999 err = __get_user(karg->ca_version, &arg32->ca32_version);
3000 err |= copy_from_user(&karg->ca_export.ex_client[0],
3001 &arg32->ca32_export.ex32_client[0],
3003 err |= copy_from_user(&karg->ca_export.ex_path[0],
3004 &arg32->ca32_export.ex32_path[0],
3006 err |= __get_user(karg->ca_export.ex_dev,
3007 &arg32->ca32_export.ex32_dev);
3008 err |= __get_user(karg->ca_export.ex_ino,
3009 &arg32->ca32_export.ex32_ino);
3010 err |= __get_user(karg->ca_export.ex_flags,
3011 &arg32->ca32_export.ex32_flags);
3012 err |= __get_user(karg->ca_export.ex_anon_uid,
3013 &arg32->ca32_export.ex32_anon_uid);
3014 err |= __get_user(karg->ca_export.ex_anon_gid,
3015 &arg32->ca32_export.ex32_anon_gid);
3020 nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
3024 err = copy_to_user(&res32->cr32_getfh,
3026 sizeof(res32->cr32_getfh));
3027 err |= __put_user(kres->cr_debug, &res32->cr32_debug);
3031 extern asmlinkage long sys_nfsservctl(int cmd, void *arg, void *resp);
3034 sys32_nfsservctl(int cmd, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
3036 struct nfsctl_arg *karg = NULL;
3037 union nfsctl_res *kres = NULL;
3041 karg = kmalloc(sizeof(*karg), GFP_USER);
3045 kres = kmalloc(sizeof(*kres), GFP_USER);
3053 err = nfs_svc32_trans(karg, arg32);
3055 case NFSCTL_ADDCLIENT:
3056 err = nfs_clnt32_trans(karg, arg32);
3058 case NFSCTL_DELCLIENT:
3059 err = nfs_clnt32_trans(karg, arg32);
3062 err = nfs_exp32_trans(karg, arg32);
3072 err = sys_nfsservctl(cmd, karg, kres);
3075 if(!err && cmd == NFSCTL_GETFS)
3076 err = nfs_getfh32_res_trans(kres, res32);
3086 /* Handle adjtimex compatibility. */
3090 s32 offset, freq, maxerror, esterror;
3091 s32 status, constant, precision, tolerance;
3092 struct compat_timeval time;
3094 s32 ppsfreq, jitter, shift, stabil;
3095 s32 jitcnt, calcnt, errcnt, stbcnt;
3096 s32 :32; s32 :32; s32 :32; s32 :32;
3097 s32 :32; s32 :32; s32 :32; s32 :32;
3098 s32 :32; s32 :32; s32 :32; s32 :32;
3101 extern int do_adjtimex(struct timex *);
3104 sys32_adjtimex(struct timex32 *utp)
3109 memset(&txc, 0, sizeof(struct timex));
3111 if(get_user(txc.modes, &utp->modes) ||
3112 __get_user(txc.offset, &utp->offset) ||
3113 __get_user(txc.freq, &utp->freq) ||
3114 __get_user(txc.maxerror, &utp->maxerror) ||
3115 __get_user(txc.esterror, &utp->esterror) ||
3116 __get_user(txc.status, &utp->status) ||
3117 __get_user(txc.constant, &utp->constant) ||
3118 __get_user(txc.precision, &utp->precision) ||
3119 __get_user(txc.tolerance, &utp->tolerance) ||
3120 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
3121 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
3122 __get_user(txc.tick, &utp->tick) ||
3123 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
3124 __get_user(txc.jitter, &utp->jitter) ||
3125 __get_user(txc.shift, &utp->shift) ||
3126 __get_user(txc.stabil, &utp->stabil) ||
3127 __get_user(txc.jitcnt, &utp->jitcnt) ||
3128 __get_user(txc.calcnt, &utp->calcnt) ||
3129 __get_user(txc.errcnt, &utp->errcnt) ||
3130 __get_user(txc.stbcnt, &utp->stbcnt))
3133 ret = do_adjtimex(&txc);
3135 if(put_user(txc.modes, &utp->modes) ||
3136 __put_user(txc.offset, &utp->offset) ||
3137 __put_user(txc.freq, &utp->freq) ||
3138 __put_user(txc.maxerror, &utp->maxerror) ||
3139 __put_user(txc.esterror, &utp->esterror) ||
3140 __put_user(txc.status, &utp->status) ||
3141 __put_user(txc.constant, &utp->constant) ||
3142 __put_user(txc.precision, &utp->precision) ||
3143 __put_user(txc.tolerance, &utp->tolerance) ||
3144 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
3145 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
3146 __put_user(txc.tick, &utp->tick) ||
3147 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
3148 __put_user(txc.jitter, &utp->jitter) ||
3149 __put_user(txc.shift, &utp->shift) ||
3150 __put_user(txc.stabil, &utp->stabil) ||
3151 __put_user(txc.jitcnt, &utp->jitcnt) ||
3152 __put_user(txc.calcnt, &utp->calcnt) ||
3153 __put_user(txc.errcnt, &utp->errcnt) ||
3154 __put_user(txc.stbcnt, &utp->stbcnt))