* Written by Ulf Carlsson (ulfc@engr.sgi.com)
* sys32_execve from ia64/ia32 code, Feb 2000, Kanoj Sarcar (kanoj@sgi.com)
*/
-#include <linux/config.h>
#include <linux/compiler.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/utime.h>
#include <linux/utsname.h>
#include <linux/personality.h>
-#include <linux/timex.h>
#include <linux/dnotify.h>
#include <linux/module.h>
#include <linux/binfmts.h>
* Revalidate the inode. This is required for proper NFS attribute caching.
*/
-int cp_compat_stat(struct kstat *stat, struct compat_stat *statbuf)
+int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
{
struct compat_stat tmp;
memset(&tmp, 0, sizeof(tmp));
tmp.st_dev = new_encode_dev(stat->dev);
tmp.st_ino = stat->ino;
+ if (sizeof(tmp.st_ino) < sizeof(stat->ino) && tmp.st_ino != stat->ino)
+ return -EOVERFLOW;
tmp.st_mode = stat->mode;
tmp.st_nlink = stat->nlink;
SET_UID(tmp.st_uid, stat->uid);
}
asmlinkage unsigned long
-sys32_mmap2(unsigned long addr, size_t len, unsigned long prot,
+sys32_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
unsigned long flags, unsigned long fd, unsigned long pgoff)
{
struct file * file = NULL;
unsigned long error;
error = -EINVAL;
+ if (pgoff & (~PAGE_MASK >> 12))
+ goto out;
+ pgoff >>= PAGE_SHIFT-12;
+
if (!(flags & MAP_ANONYMOUS)) {
error = -EBADF;
file = fget(fd);
}
-asmlinkage int sys_truncate64(const char *path, unsigned int high,
+asmlinkage int sys_truncate64(const char __user *path, unsigned int high,
unsigned int low)
{
if ((int)high < 0)
return sys_ftruncate(fd, ((long) high << 32) | low);
}
-/*
- * count32() counts the number of arguments/envelopes
- */
-static int count32(u32 * argv, int max)
-{
- int i = 0;
-
- if (argv != NULL) {
- for (;;) {
- u32 p; int error;
-
- error = get_user(p,argv);
- if (error)
- return error;
- if (!p)
- break;
- argv++;
- if (++i > max)
- return -E2BIG;
- }
- }
- return i;
-}
-
-
-/*
- * 'copy_strings32()' copies argument/envelope strings from user
- * memory to free pages in kernel mem. These are in a format ready
- * to be put directly into the top of new user memory.
- */
-int copy_strings32(int argc, u32 * argv, struct linux_binprm *bprm)
-{
- struct page *kmapped_page = NULL;
- char *kaddr = NULL;
- int ret;
-
- while (argc-- > 0) {
- u32 str;
- int len;
- unsigned long pos;
-
- if (get_user(str, argv+argc) || !str ||
- !(len = strnlen_user((char *)A(str), bprm->p))) {
- ret = -EFAULT;
- goto out;
- }
-
- if (bprm->p < len) {
- ret = -E2BIG;
- goto out;
- }
-
- bprm->p -= len;
- /* XXX: add architecture specific overflow check here. */
-
- pos = bprm->p;
- while (len > 0) {
- int i, new, err;
- int offset, bytes_to_copy;
- struct page *page;
-
- offset = pos % PAGE_SIZE;
- i = pos/PAGE_SIZE;
- page = bprm->page[i];
- new = 0;
- if (!page) {
- page = alloc_page(GFP_HIGHUSER);
- bprm->page[i] = page;
- if (!page) {
- ret = -ENOMEM;
- goto out;
- }
- new = 1;
- }
-
- if (page != kmapped_page) {
- if (kmapped_page)
- kunmap(kmapped_page);
- kmapped_page = page;
- kaddr = kmap(kmapped_page);
- }
- if (new && offset)
- memset(kaddr, 0, offset);
- bytes_to_copy = PAGE_SIZE - offset;
- if (bytes_to_copy > len) {
- bytes_to_copy = len;
- if (new)
- memset(kaddr+offset+len, 0,
- PAGE_SIZE-offset-len);
- }
- err = copy_from_user(kaddr + offset, (char *)A(str),
- bytes_to_copy);
- if (err) {
- ret = -EFAULT;
- goto out;
- }
-
- pos += bytes_to_copy;
- str += bytes_to_copy;
- len -= bytes_to_copy;
- }
- }
- ret = 0;
-out:
- if (kmapped_page)
- kunmap(kmapped_page);
- return ret;
-}
-
-#ifdef CONFIG_MMU
-
-#define free_arg_pages(bprm) do { } while (0)
-
-#else
-
-static inline void free_arg_pages(struct linux_binprm *bprm)
-{
- int i;
-
- for (i = 0; i < MAX_ARG_PAGES; i++) {
- if (bprm->page[i])
- __free_page(bprm->page[i]);
- bprm->page[i] = NULL;
- }
-}
-
-#endif /* CONFIG_MMU */
-
-/*
- * sys32_execve() executes a new program.
- */
-static inline int
-do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
-{
- struct linux_binprm bprm;
- struct file * file;
- int retval;
-
- sched_balance_exec();
-
- file = open_exec(filename);
-
- retval = PTR_ERR(file);
- if (IS_ERR(file))
- return retval;
-
- bprm.p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
- memset(bprm.page, 0, MAX_ARG_PAGES * sizeof(bprm.page[0]));
-
- bprm.file = file;
- bprm.filename = filename;
- bprm.interp = filename;
- bprm.sh_bang = 0;
- bprm.loader = 0;
- bprm.exec = 0;
- bprm.security = NULL;
- bprm.mm = mm_alloc();
- retval = -ENOMEM;
- if (!bprm.mm)
- goto out_file;
-
- retval = init_new_context(current, bprm.mm);
- if (retval < 0)
- goto out_mm;
-
- bprm.argc = count32(argv, bprm.p / sizeof(u32));
- if ((retval = bprm.argc) < 0)
- goto out_mm;
-
- bprm.envc = count32(envp, bprm.p / sizeof(u32));
- if ((retval = bprm.envc) < 0)
- goto out_mm;
-
- retval = security_bprm_alloc(&bprm);
- if (retval)
- goto out;
-
- retval = prepare_binprm(&bprm);
- if (retval < 0)
- goto out;
-
- retval = copy_strings_kernel(1, &bprm.filename, &bprm);
- if (retval < 0)
- goto out;
-
- bprm.exec = bprm.p;
- retval = copy_strings32(bprm.envc, envp, &bprm);
- if (retval < 0)
- goto out;
-
- retval = copy_strings32(bprm.argc, argv, &bprm);
- if (retval < 0)
- goto out;
-
- retval = search_binary_handler(&bprm, regs);
- if (retval >= 0) {
- free_arg_pages(&bprm);
-
- /* execve success */
- security_bprm_free(&bprm);
- return retval;
- }
-
-out:
- /* Something went wrong, return the inode and free the argument pages*/
- free_arg_pages(&bprm);
-
- if (bprm.security)
- security_bprm_free(&bprm);
-
-out_mm:
- if (bprm.mm)
- mmdrop(bprm.mm);
-
-out_file:
- if (bprm.file) {
- allow_write_access(bprm.file);
- fput(bprm.file);
- }
- return retval;
-}
-
/*
* sys_execve() executes a new program.
*/
int error;
char * filename;
- filename = getname((char *) (long)regs.regs[4]);
+ filename = getname(compat_ptr(regs.regs[4]));
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
- error = do_execve32(filename, (u32 *) (long)regs.regs[5],
- (u32 *) (long)regs.regs[6], ®s);
+ error = compat_do_execve(filename, compat_ptr(regs.regs[5]),
+ compat_ptr(regs.regs[6]), ®s);
putname(filename);
out:
return error;
}
-struct dirent32 {
- unsigned int d_ino;
- unsigned int d_off;
- unsigned short d_reclen;
- char d_name[NAME_MAX + 1];
-};
-
-static void
-xlate_dirent(void *dirent64, void *dirent32, long n)
-{
- long off;
- struct dirent *dirp;
- struct dirent32 *dirp32;
-
- off = 0;
- while (off < n) {
- dirp = (struct dirent *)(dirent64 + off);
- dirp32 = (struct dirent32 *)(dirent32 + off);
- off += dirp->d_reclen;
- dirp32->d_ino = dirp->d_ino;
- dirp32->d_off = (unsigned int)dirp->d_off;
- dirp32->d_reclen = dirp->d_reclen;
- strncpy(dirp32->d_name, dirp->d_name, dirp->d_reclen - ((3 * 4) + 2));
- }
- return;
-}
-
asmlinkage long
-sys32_getdents(unsigned int fd, void * dirent32, unsigned int count)
-{
- long n;
- void *dirent64;
-
- dirent64 = (void *)((unsigned long)(dirent32 + (sizeof(long) - 1)) & ~(sizeof(long) - 1));
- if ((n = sys_getdents(fd, dirent64, count - (dirent64 - dirent32))) < 0)
- return(n);
- xlate_dirent(dirent64, dirent32, n);
- return(n);
-}
-
-asmlinkage int old_readdir(unsigned int fd, void * dirent, unsigned int count);
-
-asmlinkage int
-sys32_readdir(unsigned int fd, void * dirent32, unsigned int count)
+sysn32_waitid(int which, compat_pid_t pid,
+ siginfo_t __user *uinfo, int options,
+ struct compat_rusage __user *uru)
{
- int n;
- struct dirent dirent64;
-
- if ((n = old_readdir(fd, &dirent64, count)) < 0)
- return(n);
- xlate_dirent(&dirent64, dirent32, dirent64.d_reclen);
- return(n);
-}
-
-struct rusage32 {
- struct compat_timeval ru_utime;
- struct compat_timeval ru_stime;
- int ru_maxrss;
- int ru_ixrss;
- int ru_idrss;
- int ru_isrss;
- int ru_minflt;
- int ru_majflt;
- int ru_nswap;
- int ru_inblock;
- int ru_oublock;
- int ru_msgsnd;
- int ru_msgrcv;
- int ru_nsignals;
- int ru_nvcsw;
- int ru_nivcsw;
-};
-
-static int
-put_rusage (struct rusage32 *ru, struct rusage *r)
-{
- int err;
+ struct rusage ru;
+ long ret;
+ mm_segment_t old_fs = get_fs();
+ int si_signo;
- if (verify_area(VERIFY_WRITE, ru, sizeof *ru))
+ if (!access_ok(VERIFY_WRITE, uinfo, sizeof(*uinfo)))
return -EFAULT;
- err = __put_user (r->ru_utime.tv_sec, &ru->ru_utime.tv_sec);
- err |= __put_user (r->ru_utime.tv_usec, &ru->ru_utime.tv_usec);
- err |= __put_user (r->ru_stime.tv_sec, &ru->ru_stime.tv_sec);
- err |= __put_user (r->ru_stime.tv_usec, &ru->ru_stime.tv_usec);
- err |= __put_user (r->ru_maxrss, &ru->ru_maxrss);
- err |= __put_user (r->ru_ixrss, &ru->ru_ixrss);
- err |= __put_user (r->ru_idrss, &ru->ru_idrss);
- err |= __put_user (r->ru_isrss, &ru->ru_isrss);
- err |= __put_user (r->ru_minflt, &ru->ru_minflt);
- err |= __put_user (r->ru_majflt, &ru->ru_majflt);
- err |= __put_user (r->ru_nswap, &ru->ru_nswap);
- err |= __put_user (r->ru_inblock, &ru->ru_inblock);
- err |= __put_user (r->ru_oublock, &ru->ru_oublock);
- err |= __put_user (r->ru_msgsnd, &ru->ru_msgsnd);
- err |= __put_user (r->ru_msgrcv, &ru->ru_msgrcv);
- err |= __put_user (r->ru_nsignals, &ru->ru_nsignals);
- err |= __put_user (r->ru_nvcsw, &ru->ru_nvcsw);
- err |= __put_user (r->ru_nivcsw, &ru->ru_nivcsw);
-
- return err;
-}
+ set_fs (KERNEL_DS);
+ ret = sys_waitid(which, pid, uinfo, options,
+ uru ? (struct rusage __user *) &ru : NULL);
+ set_fs (old_fs);
-asmlinkage int
-sys32_wait4(compat_pid_t pid, unsigned int * stat_addr, int options,
- struct rusage32 * ru)
-{
- if (!ru)
- return sys_wait4(pid, stat_addr, options, NULL);
- else {
- struct rusage r;
- int ret;
- unsigned int status;
- mm_segment_t old_fs = get_fs();
-
- set_fs(KERNEL_DS);
- ret = sys_wait4(pid, stat_addr ? &status : NULL, options, &r);
- set_fs(old_fs);
- if (put_rusage (ru, &r)) return -EFAULT;
- if (stat_addr && put_user (status, stat_addr))
- return -EFAULT;
+ if (__get_user(si_signo, &uinfo->si_signo))
+ return -EFAULT;
+ if (ret < 0 || si_signo == 0)
return ret;
- }
-}
-asmlinkage int
-sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options)
-{
- return sys32_wait4(pid, stat_addr, options, NULL);
+ if (uru)
+ ret = put_compat_rusage(&ru, uru);
+ return ret;
}
struct sysinfo32 {
char _f[8];
};
-asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
+asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
{
struct sysinfo s;
int ret, err;
mm_segment_t old_fs = get_fs ();
-
+
set_fs (KERNEL_DS);
- ret = sys_sysinfo(&s);
+ ret = sys_sysinfo((struct sysinfo __user *)&s);
set_fs (old_fs);
err = put_user (s.uptime, &info->uptime);
err |= __put_user (s.loads[0], &info->loads[0]);
};
#ifdef __MIPSEB__
-asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
+asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
int length_hi, int length_lo)
#endif
#ifdef __MIPSEL__
-asmlinkage long sys32_truncate64(const char * path, unsigned long __dummy,
+asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
int length_lo, int length_hi)
#endif
{
}
static inline long
-get_tv32(struct timeval *o, struct compat_timeval *i)
+get_tv32(struct timeval *o, struct compat_timeval __user *i)
{
return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
(__get_user(o->tv_sec, &i->tv_sec) |
}
static inline long
-put_tv32(struct compat_timeval *o, struct timeval *i)
+put_tv32(struct compat_timeval __user *o, struct timeval *i)
{
return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
(__put_user(i->tv_sec, &o->tv_sec) |
extern struct timezone sys_tz;
asmlinkage int
-sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
+sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
{
if (tv) {
struct timeval ktv;
- do_gettimeofday(&ktv);
+ vx_gettimeofday(&ktv);
if (put_tv32(tv, &ktv))
return -EFAULT;
}
return 0;
}
-static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
+static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
{
long usec;
}
asmlinkage int
-sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
+sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
{
struct timespec kts;
struct timezone ktz;
}
asmlinkage int sys32_llseek(unsigned int fd, unsigned int offset_high,
- unsigned int offset_low, loff_t * result,
+ unsigned int offset_low, loff_t __user * result,
unsigned int origin)
{
return sys_llseek(fd, offset_high, offset_low, result, origin);
}
-typedef ssize_t (*IO_fn_t)(struct file *, char *, size_t, loff_t *);
-
-static long
-do_readv_writev32(int type, struct file *file, const struct compat_iovec *vector,
- u32 count)
-{
- unsigned long tot_len;
- struct iovec iovstack[UIO_FASTIOV];
- struct iovec *iov=iovstack, *ivp;
- struct inode *inode;
- long retval, i;
- IO_fn_t fn;
-
- /* First get the "struct iovec" from user memory and
- * verify all the pointers
- */
- if (!count)
- return 0;
- if(verify_area(VERIFY_READ, vector, sizeof(struct compat_iovec)*count))
- return -EFAULT;
- if (count > UIO_MAXIOV)
- return -EINVAL;
- if (count > UIO_FASTIOV) {
- iov = kmalloc(count*sizeof(struct iovec), GFP_KERNEL);
- if (!iov)
- return -ENOMEM;
- }
-
- tot_len = 0;
- i = count;
- ivp = iov;
- while (i > 0) {
- u32 len;
- u32 buf;
-
- __get_user(len, &vector->iov_len);
- __get_user(buf, &vector->iov_base);
- tot_len += len;
- ivp->iov_base = (void *)A(buf);
- ivp->iov_len = (__kernel_size_t) len;
- vector++;
- ivp++;
- i--;
- }
-
- inode = file->f_dentry->d_inode;
- /* VERIFY_WRITE actually means a read, as we write to user space */
- retval = locks_verify_area((type == VERIFY_WRITE
- ? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE),
- inode, file, file->f_pos, tot_len);
- if (retval) {
- if (iov != iovstack)
- kfree(iov);
- return retval;
- }
-
- /* Then do the actual IO. Note that sockets need to be handled
- * specially as they have atomicity guarantees and can handle
- * iovec's natively
- */
-#ifdef CONFIG_NET
- if (inode->i_sock) {
- int err;
- err = sock_readv_writev(type, inode, file, iov, count, tot_len);
- if (iov != iovstack)
- kfree(iov);
- return err;
- }
-#endif
-
- if (!file->f_op) {
- if (iov != iovstack)
- kfree(iov);
- return -EINVAL;
- }
- /* VERIFY_WRITE actually means a read, as we write to user space */
- fn = file->f_op->read;
- if (type == VERIFY_READ)
- fn = (IO_fn_t) file->f_op->write;
- ivp = iov;
- while (count > 0) {
- void * base;
- int len, nr;
-
- base = ivp->iov_base;
- len = ivp->iov_len;
- ivp++;
- count--;
- nr = fn(file, base, len, &file->f_pos);
- if (nr < 0) {
- if (retval)
- break;
- retval = nr;
- break;
- }
- retval += nr;
- if (nr != len)
- break;
- }
- if (iov != iovstack)
- kfree(iov);
-
- return retval;
-}
-
-asmlinkage long
-sys32_readv(int fd, struct compat_iovec *vector, u32 count)
-{
- struct file *file;
- ssize_t ret;
-
- ret = -EBADF;
- file = fget(fd);
- if (!file)
- goto bad_file;
- if (file->f_op && (file->f_mode & FMODE_READ) &&
- (file->f_op->readv || file->f_op->read))
- ret = do_readv_writev32(VERIFY_WRITE, file, vector, count);
-
- fput(file);
-
-bad_file:
- return ret;
-}
-
-asmlinkage long
-sys32_writev(int fd, struct compat_iovec *vector, u32 count)
-{
- struct file *file;
- ssize_t ret;
-
- ret = -EBADF;
- file = fget(fd);
- if(!file)
- goto bad_file;
- if (file->f_op && (file->f_mode & FMODE_WRITE) &&
- (file->f_op->writev || file->f_op->write))
- ret = do_readv_writev32(VERIFY_READ, file, vector, count);
- fput(file);
-
-bad_file:
- return ret;
-}
-
/* From the Single Unix Spec: pread & pwrite act like lseek to pos + op +
lseek back to original location. They fail just like lseek does on
non-seekable files. */
-asmlinkage ssize_t sys32_pread(unsigned int fd, char * buf,
+asmlinkage ssize_t sys32_pread(unsigned int fd, char __user * buf,
size_t count, u32 unused, u64 a4, u64 a5)
{
- ssize_t ret;
- struct file * file;
- ssize_t (*read)(struct file *, char *, size_t, loff_t *);
- loff_t pos;
-
- ret = -EBADF;
- file = fget(fd);
- if (!file)
- goto bad_file;
- if (!(file->f_mode & FMODE_READ))
- goto out;
- pos = merge_64(a4, a5);
- ret = locks_verify_area(FLOCK_VERIFY_READ, file->f_dentry->d_inode,
- file, pos, count);
- if (ret)
- goto out;
- ret = -EINVAL;
- if (!file->f_op || !(read = file->f_op->read))
- goto out;
- if (pos < 0)
- goto out;
- ret = read(file, buf, count, &pos);
- if (ret > 0)
- dnotify_parent(file->f_dentry, DN_ACCESS);
-out:
- fput(file);
-bad_file:
- return ret;
+ return sys_pread64(fd, buf, count, merge_64(a4, a5));
}
-asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char * buf,
+asmlinkage ssize_t sys32_pwrite(unsigned int fd, const char __user * buf,
size_t count, u32 unused, u64 a4, u64 a5)
{
- ssize_t ret;
- struct file * file;
- ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
- loff_t pos;
-
- ret = -EBADF;
- file = fget(fd);
- if (!file)
- goto bad_file;
- if (!(file->f_mode & FMODE_WRITE))
- goto out;
- pos = merge_64(a4, a5);
- ret = locks_verify_area(FLOCK_VERIFY_WRITE, file->f_dentry->d_inode,
- file, pos, count);
- if (ret)
- goto out;
- ret = -EINVAL;
- if (!file->f_op || !(write = file->f_op->write))
- goto out;
- if (pos < 0)
- goto out;
-
- ret = write(file, buf, count, &pos);
- if (ret > 0)
- dnotify_parent(file->f_dentry, DN_MODIFY);
-out:
- fput(file);
-bad_file:
- return ret;
+ return sys_pwrite64(fd, buf, count, merge_64(a4, a5));
}
-/*
- * Ooo, nasty. We need here to frob 32-bit unsigned longs to
- * 64-bit unsigned longs.
- */
-
-static inline int
-get_fd_set32(unsigned long n, unsigned long *fdset, u32 *ufdset)
-{
- if (ufdset) {
- unsigned long odd;
-
- if (verify_area(VERIFY_WRITE, ufdset, n*sizeof(u32)))
- return -EFAULT;
-
- odd = n & 1UL;
- n &= ~1UL;
- while (n) {
- unsigned long h, l;
- __get_user(l, ufdset);
- __get_user(h, ufdset+1);
- ufdset += 2;
- *fdset++ = h << 32 | l;
- n -= 2;
- }
- if (odd)
- __get_user(*fdset, ufdset);
- } else {
- /* Tricky, must clear full unsigned long in the
- * kernel fdset at the end, this makes sure that
- * actually happens.
- */
- memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
- }
- return 0;
-}
-
-static inline void
-set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
-{
- unsigned long odd;
-
- if (!ufdset)
- return;
-
- odd = n & 1UL;
- n &= ~1UL;
- while (n) {
- unsigned long h, l;
- l = *fdset++;
- h = l >> 32;
- __put_user(l, ufdset);
- __put_user(h, ufdset+1);
- ufdset += 2;
- n -= 2;
- }
- if (odd)
- __put_user(*fdset, ufdset);
-}
-
-/*
- * We can actually return ERESTARTSYS instead of EINTR, but I'd
- * like to be certain this leads to no problems. So I return
- * EINTR just for safety.
- *
- * Update: ERESTARTSYS breaks at least the xview clock binary, so
- * I'm trying ERESTARTNOHAND which restart only when you want to.
- */
-#define MAX_SELECT_SECONDS \
- ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
-
-asmlinkage int sys32_select(int n, u32 *inp, u32 *outp, u32 *exp, struct compat_timeval *tvp)
-{
- fd_set_bits fds;
- char *bits;
- unsigned long nn;
- long timeout;
- int ret, size;
-
- timeout = MAX_SCHEDULE_TIMEOUT;
- if (tvp) {
- time_t sec, usec;
-
- if ((ret = verify_area(VERIFY_READ, tvp, sizeof(*tvp)))
- || (ret = __get_user(sec, &tvp->tv_sec))
- || (ret = __get_user(usec, &tvp->tv_usec)))
- goto out_nofds;
-
- ret = -EINVAL;
- if(sec < 0 || usec < 0)
- goto out_nofds;
-
- if ((unsigned long) sec < MAX_SELECT_SECONDS) {
- timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
- timeout += sec * (unsigned long) HZ;
- }
- }
-
- ret = -EINVAL;
- if (n < 0)
- goto out_nofds;
- if (n > current->files->max_fdset)
- n = current->files->max_fdset;
-
- /*
- * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
- * since we used fdset we need to allocate memory in units of
- * long-words.
- */
- ret = -ENOMEM;
- size = FDS_BYTES(n);
- bits = kmalloc(6 * size, GFP_KERNEL);
- if (!bits)
- goto out_nofds;
- fds.in = (unsigned long *) bits;
- fds.out = (unsigned long *) (bits + size);
- fds.ex = (unsigned long *) (bits + 2*size);
- fds.res_in = (unsigned long *) (bits + 3*size);
- fds.res_out = (unsigned long *) (bits + 4*size);
- fds.res_ex = (unsigned long *) (bits + 5*size);
-
- nn = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
- if ((ret = get_fd_set32(nn, fds.in, inp)) ||
- (ret = get_fd_set32(nn, fds.out, outp)) ||
- (ret = get_fd_set32(nn, fds.ex, exp)))
- goto out;
- zero_fd_set(n, fds.res_in);
- zero_fd_set(n, fds.res_out);
- zero_fd_set(n, fds.res_ex);
-
- ret = do_select(n, &fds, &timeout);
-
- if (tvp && !(current->personality & STICKY_TIMEOUTS)) {
- time_t sec = 0, usec = 0;
- if (timeout) {
- sec = timeout / HZ;
- usec = timeout % HZ;
- usec *= (1000000/HZ);
- }
- put_user(sec, &tvp->tv_sec);
- put_user(usec, &tvp->tv_usec);
- }
-
- if (ret < 0)
- goto out;
- if (!ret) {
- ret = -ERESTARTNOHAND;
- if (signal_pending(current))
- goto out;
- ret = 0;
- }
-
- set_fd_set32(nn, inp, fds.res_in);
- set_fd_set32(nn, outp, fds.res_out);
- set_fd_set32(nn, exp, fds.res_ex);
-
-out:
- kfree(bits);
-out_nofds:
- return ret;
-}
-
asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
- struct compat_timespec *interval)
+ struct compat_timespec __user *interval)
{
struct timespec t;
int ret;
mm_segment_t old_fs = get_fs ();
set_fs (KERNEL_DS);
- ret = sys_sched_rr_get_interval(pid, &t);
+ ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
set_fs (old_fs);
if (put_user (t.tv_sec, &interval->tv_sec) ||
__put_user (t.tv_nsec, &interval->tv_nsec))
return ret;
}
-struct msgbuf32 { s32 mtype; char mtext[1]; };
-
-struct ipc_perm32
-{
- key_t key;
- compat_uid_t uid;
- compat_gid_t gid;
- compat_uid_t cuid;
- compat_gid_t cgid;
- compat_mode_t mode;
- unsigned short seq;
-};
-
-struct ipc64_perm32 {
- key_t key;
- compat_uid_t uid;
- compat_gid_t gid;
- compat_uid_t cuid;
- compat_gid_t cgid;
- compat_mode_t mode;
- unsigned short seq;
- unsigned short __pad1;
- unsigned int __unused1;
- unsigned int __unused2;
-};
-
-struct semid_ds32 {
- struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
- compat_time_t sem_otime; /* last semop time */
- compat_time_t sem_ctime; /* last change time */
- u32 sem_base; /* ptr to first semaphore in array */
- u32 sem_pending; /* pending operations to be processed */
- u32 sem_pending_last; /* last pending operation */
- u32 undo; /* undo requests on this array */
- unsigned short sem_nsems; /* no. of semaphores in array */
-};
-
-struct semid64_ds32 {
- struct ipc64_perm32 sem_perm;
- compat_time_t sem_otime;
- compat_time_t sem_ctime;
- unsigned int sem_nsems;
- unsigned int __unused1;
- unsigned int __unused2;
-};
-
-struct msqid_ds32
-{
- struct ipc_perm32 msg_perm;
- u32 msg_first;
- u32 msg_last;
- compat_time_t msg_stime;
- compat_time_t msg_rtime;
- compat_time_t msg_ctime;
- u32 wwait;
- u32 rwait;
- unsigned short msg_cbytes;
- unsigned short msg_qnum;
- unsigned short msg_qbytes;
- compat_ipc_pid_t msg_lspid;
- compat_ipc_pid_t msg_lrpid;
-};
-
-struct msqid64_ds32 {
- struct ipc64_perm32 msg_perm;
- compat_time_t msg_stime;
- unsigned int __unused1;
- compat_time_t msg_rtime;
- unsigned int __unused2;
- compat_time_t msg_ctime;
- unsigned int __unused3;
- unsigned int msg_cbytes;
- unsigned int msg_qnum;
- unsigned int msg_qbytes;
- compat_pid_t msg_lspid;
- compat_pid_t msg_lrpid;
- unsigned int __unused4;
- unsigned int __unused5;
-};
-
-struct shmid_ds32 {
- struct ipc_perm32 shm_perm;
- int shm_segsz;
- compat_time_t shm_atime;
- compat_time_t shm_dtime;
- compat_time_t shm_ctime;
- compat_ipc_pid_t shm_cpid;
- compat_ipc_pid_t shm_lpid;
- unsigned short shm_nattch;
-};
-
-struct shmid64_ds32 {
- struct ipc64_perm32 shm_perm;
- compat_size_t shm_segsz;
- compat_time_t shm_atime;
- compat_time_t shm_dtime;
- compat_time_t shm_ctime;
- compat_pid_t shm_cpid;
- compat_pid_t shm_lpid;
- unsigned int shm_nattch;
- unsigned int __unused1;
- unsigned int __unused2;
-};
-
-struct ipc_kludge32 {
- u32 msgp;
- s32 msgtyp;
-};
-
-static int
-do_sys32_semctl(int first, int second, int third, void *uptr)
-{
- union semun fourth;
- u32 pad;
- int err, err2;
- struct semid64_ds s;
- mm_segment_t old_fs;
-
- if (!uptr)
- return -EINVAL;
- err = -EFAULT;
- if (get_user (pad, (u32 *)uptr))
- return err;
- if ((third & ~IPC_64) == SETVAL)
- fourth.val = (int)pad;
- else
- fourth.__pad = (void *)A(pad);
- switch (third & ~IPC_64) {
- case IPC_INFO:
- case IPC_RMID:
- case IPC_SET:
- case SEM_INFO:
- case GETVAL:
- case GETPID:
- case GETNCNT:
- case GETZCNT:
- case GETALL:
- case SETVAL:
- case SETALL:
- err = sys_semctl (first, second, third, fourth);
- break;
-
- case IPC_STAT:
- case SEM_STAT:
- fourth.__pad = &s;
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_semctl(first, second, third | IPC_64, fourth);
- set_fs(old_fs);
-
- if (third & IPC_64) {
- struct semid64_ds32 *usp64 = (struct semid64_ds32 *) A(pad);
-
- if (!access_ok(VERIFY_WRITE, usp64, sizeof(*usp64))) {
- err = -EFAULT;
- break;
- }
- err2 = __put_user(s.sem_perm.key, &usp64->sem_perm.key);
- err2 |= __put_user(s.sem_perm.uid, &usp64->sem_perm.uid);
- err2 |= __put_user(s.sem_perm.gid, &usp64->sem_perm.gid);
- err2 |= __put_user(s.sem_perm.cuid, &usp64->sem_perm.cuid);
- err2 |= __put_user(s.sem_perm.cgid, &usp64->sem_perm.cgid);
- err2 |= __put_user(s.sem_perm.mode, &usp64->sem_perm.mode);
- err2 |= __put_user(s.sem_perm.seq, &usp64->sem_perm.seq);
- err2 |= __put_user(s.sem_otime, &usp64->sem_otime);
- err2 |= __put_user(s.sem_ctime, &usp64->sem_ctime);
- err2 |= __put_user(s.sem_nsems, &usp64->sem_nsems);
- } else {
- struct semid_ds32 *usp32 = (struct semid_ds32 *) A(pad);
-
- if (!access_ok(VERIFY_WRITE, usp32, sizeof(*usp32))) {
- err = -EFAULT;
- break;
- }
- err2 = __put_user(s.sem_perm.key, &usp32->sem_perm.key);
- err2 |= __put_user(s.sem_perm.uid, &usp32->sem_perm.uid);
- err2 |= __put_user(s.sem_perm.gid, &usp32->sem_perm.gid);
- err2 |= __put_user(s.sem_perm.cuid, &usp32->sem_perm.cuid);
- err2 |= __put_user(s.sem_perm.cgid, &usp32->sem_perm.cgid);
- err2 |= __put_user(s.sem_perm.mode, &usp32->sem_perm.mode);
- err2 |= __put_user(s.sem_perm.seq, &usp32->sem_perm.seq);
- err2 |= __put_user(s.sem_otime, &usp32->sem_otime);
- err2 |= __put_user(s.sem_ctime, &usp32->sem_ctime);
- err2 |= __put_user(s.sem_nsems, &usp32->sem_nsems);
- }
- if (err2)
- err = -EFAULT;
- break;
-
- default:
- err = - EINVAL;
- break;
- }
-
- return err;
-}
-
-static int
-do_sys32_msgsnd (int first, int second, int third, void *uptr)
-{
- struct msgbuf32 *up = (struct msgbuf32 *)uptr;
- struct msgbuf *p;
- mm_segment_t old_fs;
- int err;
-
- if (second < 0)
- return -EINVAL;
- p = kmalloc (second + sizeof (struct msgbuf)
- + 4, GFP_USER);
- if (!p)
- return -ENOMEM;
- err = get_user (p->mtype, &up->mtype);
- if (err)
- goto out;
- err |= __copy_from_user (p->mtext, &up->mtext, second);
- if (err)
- goto out;
- old_fs = get_fs ();
- set_fs (KERNEL_DS);
- err = sys_msgsnd (first, p, second, third);
- set_fs (old_fs);
-out:
- kfree (p);
-
- return err;
-}
-
-static int
-do_sys32_msgrcv (int first, int second, int msgtyp, int third,
- int version, void *uptr)
-{
- struct msgbuf32 *up;
- struct msgbuf *p;
- mm_segment_t old_fs;
- int err;
-
- if (!version) {
- struct ipc_kludge32 *uipck = (struct ipc_kludge32 *)uptr;
- struct ipc_kludge32 ipck;
-
- err = -EINVAL;
- if (!uptr)
- goto out;
- err = -EFAULT;
- if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge32)))
- goto out;
- uptr = (void *)AA(ipck.msgp);
- msgtyp = ipck.msgtyp;
- }
-
- if (second < 0)
- return -EINVAL;
- err = -ENOMEM;
- p = kmalloc (second + sizeof (struct msgbuf) + 4, GFP_USER);
- if (!p)
- goto out;
- old_fs = get_fs ();
- set_fs (KERNEL_DS);
- err = sys_msgrcv (first, p, second + 4, msgtyp, third);
- set_fs (old_fs);
- if (err < 0)
- goto free_then_out;
- up = (struct msgbuf32 *)uptr;
- if (put_user (p->mtype, &up->mtype) ||
- __copy_to_user (&up->mtext, p->mtext, err))
- err = -EFAULT;
-free_then_out:
- kfree (p);
-out:
- return err;
-}
-
-static int
-do_sys32_msgctl (int first, int second, void *uptr)
-{
- int err = -EINVAL, err2;
- struct msqid64_ds m;
- struct msqid_ds32 *up32 = (struct msqid_ds32 *)uptr;
- struct msqid64_ds32 *up64 = (struct msqid64_ds32 *)uptr;
- mm_segment_t old_fs;
-
- switch (second & ~IPC_64) {
- case IPC_INFO:
- case IPC_RMID:
- case MSG_INFO:
- err = sys_msgctl (first, second, (struct msqid_ds *)uptr);
- break;
-
- case IPC_SET:
- if (second & IPC_64) {
- if (!access_ok(VERIFY_READ, up64, sizeof(*up64))) {
- err = -EFAULT;
- break;
- }
- err = __get_user(m.msg_perm.uid, &up64->msg_perm.uid);
- err |= __get_user(m.msg_perm.gid, &up64->msg_perm.gid);
- err |= __get_user(m.msg_perm.mode, &up64->msg_perm.mode);
- err |= __get_user(m.msg_qbytes, &up64->msg_qbytes);
- } else {
- if (!access_ok(VERIFY_READ, up32, sizeof(*up32))) {
- err = -EFAULT;
- break;
- }
- err = __get_user(m.msg_perm.uid, &up32->msg_perm.uid);
- err |= __get_user(m.msg_perm.gid, &up32->msg_perm.gid);
- err |= __get_user(m.msg_perm.mode, &up32->msg_perm.mode);
- err |= __get_user(m.msg_qbytes, &up32->msg_qbytes);
- }
- if (err)
- break;
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
- set_fs(old_fs);
- break;
-
- case IPC_STAT:
- case MSG_STAT:
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_msgctl(first, second | IPC_64, (struct msqid_ds *)&m);
- set_fs(old_fs);
- if (second & IPC_64) {
- if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
- err = -EFAULT;
- break;
- }
- err2 = __put_user(m.msg_perm.key, &up64->msg_perm.key);
- err2 |= __put_user(m.msg_perm.uid, &up64->msg_perm.uid);
- err2 |= __put_user(m.msg_perm.gid, &up64->msg_perm.gid);
- err2 |= __put_user(m.msg_perm.cuid, &up64->msg_perm.cuid);
- err2 |= __put_user(m.msg_perm.cgid, &up64->msg_perm.cgid);
- err2 |= __put_user(m.msg_perm.mode, &up64->msg_perm.mode);
- err2 |= __put_user(m.msg_perm.seq, &up64->msg_perm.seq);
- err2 |= __put_user(m.msg_stime, &up64->msg_stime);
- err2 |= __put_user(m.msg_rtime, &up64->msg_rtime);
- err2 |= __put_user(m.msg_ctime, &up64->msg_ctime);
- err2 |= __put_user(m.msg_cbytes, &up64->msg_cbytes);
- err2 |= __put_user(m.msg_qnum, &up64->msg_qnum);
- err2 |= __put_user(m.msg_qbytes, &up64->msg_qbytes);
- err2 |= __put_user(m.msg_lspid, &up64->msg_lspid);
- err2 |= __put_user(m.msg_lrpid, &up64->msg_lrpid);
- if (err2)
- err = -EFAULT;
- } else {
- if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
- err = -EFAULT;
- break;
- }
- err2 = __put_user(m.msg_perm.key, &up32->msg_perm.key);
- err2 |= __put_user(m.msg_perm.uid, &up32->msg_perm.uid);
- err2 |= __put_user(m.msg_perm.gid, &up32->msg_perm.gid);
- err2 |= __put_user(m.msg_perm.cuid, &up32->msg_perm.cuid);
- err2 |= __put_user(m.msg_perm.cgid, &up32->msg_perm.cgid);
- err2 |= __put_user(m.msg_perm.mode, &up32->msg_perm.mode);
- err2 |= __put_user(m.msg_perm.seq, &up32->msg_perm.seq);
- err2 |= __put_user(m.msg_stime, &up32->msg_stime);
- err2 |= __put_user(m.msg_rtime, &up32->msg_rtime);
- err2 |= __put_user(m.msg_ctime, &up32->msg_ctime);
- err2 |= __put_user(m.msg_cbytes, &up32->msg_cbytes);
- err2 |= __put_user(m.msg_qnum, &up32->msg_qnum);
- err2 |= __put_user(m.msg_qbytes, &up32->msg_qbytes);
- err2 |= __put_user(m.msg_lspid, &up32->msg_lspid);
- err2 |= __put_user(m.msg_lrpid, &up32->msg_lrpid);
- if (err2)
- err = -EFAULT;
- }
- break;
- }
-
- return err;
-}
-
-static int
-do_sys32_shmat (int first, int second, int third, int version, void *uptr)
-{
- unsigned long raddr;
- u32 *uaddr = (u32 *)A((u32)third);
- int err = -EINVAL;
-
- if (version == 1)
- return err;
- err = do_shmat (first, uptr, second, &raddr);
- if (err)
- return err;
- err = put_user (raddr, uaddr);
- return err;
-}
-
-struct shm_info32 {
- int used_ids;
- u32 shm_tot, shm_rss, shm_swp;
- u32 swap_attempts, swap_successes;
-};
-
-static int
-do_sys32_shmctl (int first, int second, void *uptr)
-{
- struct shmid64_ds32 *up64 = (struct shmid64_ds32 *)uptr;
- struct shmid_ds32 *up32 = (struct shmid_ds32 *)uptr;
- struct shm_info32 *uip = (struct shm_info32 *)uptr;
- int err = -EFAULT, err2;
- struct shmid64_ds s64;
- mm_segment_t old_fs;
- struct shm_info si;
- struct shmid_ds s;
-
- switch (second & ~IPC_64) {
- case IPC_INFO:
- second = IPC_INFO; /* So that we don't have to translate it */
- case IPC_RMID:
- case SHM_LOCK:
- case SHM_UNLOCK:
- err = sys_shmctl(first, second, (struct shmid_ds *)uptr);
- break;
- case IPC_SET:
- if (second & IPC_64) {
- err = get_user(s.shm_perm.uid, &up64->shm_perm.uid);
- err |= get_user(s.shm_perm.gid, &up64->shm_perm.gid);
- err |= get_user(s.shm_perm.mode, &up64->shm_perm.mode);
- } else {
- err = get_user(s.shm_perm.uid, &up32->shm_perm.uid);
- err |= get_user(s.shm_perm.gid, &up32->shm_perm.gid);
- err |= get_user(s.shm_perm.mode, &up32->shm_perm.mode);
- }
- if (err)
- break;
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_shmctl(first, second & ~IPC_64, &s);
- set_fs(old_fs);
- break;
-
- case IPC_STAT:
- case SHM_STAT:
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_shmctl(first, second | IPC_64, (void *) &s64);
- set_fs(old_fs);
- if (err < 0)
- break;
- if (second & IPC_64) {
- if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) {
- err = -EFAULT;
- break;
- }
- err2 = __put_user(s64.shm_perm.key, &up64->shm_perm.key);
- err2 |= __put_user(s64.shm_perm.uid, &up64->shm_perm.uid);
- err2 |= __put_user(s64.shm_perm.gid, &up64->shm_perm.gid);
- err2 |= __put_user(s64.shm_perm.cuid, &up64->shm_perm.cuid);
- err2 |= __put_user(s64.shm_perm.cgid, &up64->shm_perm.cgid);
- err2 |= __put_user(s64.shm_perm.mode, &up64->shm_perm.mode);
- err2 |= __put_user(s64.shm_perm.seq, &up64->shm_perm.seq);
- err2 |= __put_user(s64.shm_atime, &up64->shm_atime);
- err2 |= __put_user(s64.shm_dtime, &up64->shm_dtime);
- err2 |= __put_user(s64.shm_ctime, &up64->shm_ctime);
- err2 |= __put_user(s64.shm_segsz, &up64->shm_segsz);
- err2 |= __put_user(s64.shm_nattch, &up64->shm_nattch);
- err2 |= __put_user(s64.shm_cpid, &up64->shm_cpid);
- err2 |= __put_user(s64.shm_lpid, &up64->shm_lpid);
- } else {
- if (!access_ok(VERIFY_WRITE, up32, sizeof(*up32))) {
- err = -EFAULT;
- break;
- }
- err2 = __put_user(s64.shm_perm.key, &up32->shm_perm.key);
- err2 |= __put_user(s64.shm_perm.uid, &up32->shm_perm.uid);
- err2 |= __put_user(s64.shm_perm.gid, &up32->shm_perm.gid);
- err2 |= __put_user(s64.shm_perm.cuid, &up32->shm_perm.cuid);
- err2 |= __put_user(s64.shm_perm.cgid, &up32->shm_perm.cgid);
- err2 |= __put_user(s64.shm_perm.mode, &up32->shm_perm.mode);
- err2 |= __put_user(s64.shm_perm.seq, &up32->shm_perm.seq);
- err2 |= __put_user(s64.shm_atime, &up32->shm_atime);
- err2 |= __put_user(s64.shm_dtime, &up32->shm_dtime);
- err2 |= __put_user(s64.shm_ctime, &up32->shm_ctime);
- err2 |= __put_user(s64.shm_segsz, &up32->shm_segsz);
- err2 |= __put_user(s64.shm_nattch, &up32->shm_nattch);
- err2 |= __put_user(s64.shm_cpid, &up32->shm_cpid);
- err2 |= __put_user(s64.shm_lpid, &up32->shm_lpid);
- }
- if (err2)
- err = -EFAULT;
- break;
-
- case SHM_INFO:
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_shmctl(first, second, (void *)&si);
- set_fs(old_fs);
- if (err < 0)
- break;
- err2 = put_user(si.used_ids, &uip->used_ids);
- err2 |= __put_user(si.shm_tot, &uip->shm_tot);
- err2 |= __put_user(si.shm_rss, &uip->shm_rss);
- err2 |= __put_user(si.shm_swp, &uip->shm_swp);
- err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
- err2 |= __put_user (si.swap_successes, &uip->swap_successes);
- if (err2)
- err = -EFAULT;
- break;
-
- default:
- err = -EINVAL;
- break;
- }
-
- return err;
-}
-
-static int sys32_semtimedop(int semid, struct sembuf *tsems, int nsems,
- const struct compat_timespec *timeout32)
-{
- struct compat_timespec t32;
- struct timespec *t64 = compat_alloc_user_space(sizeof(*t64));
-
- if (copy_from_user(&t32, timeout32, sizeof(t32)))
- return -EFAULT;
-
- if (put_user(t32.tv_sec, &t64->tv_sec) ||
- put_user(t32.tv_nsec, &t64->tv_nsec))
- return -EFAULT;
-
- return sys_semtimedop(semid, tsems, nsems, t64);
-}
-
asmlinkage long
sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
{
switch (call) {
case SEMOP:
/* struct sembuf is the same on 32 and 64bit :)) */
- err = sys_semtimedop (first, (struct sembuf *)AA(ptr), second,
- NULL);
+ err = sys_semtimedop(first, compat_ptr(ptr), second, NULL);
break;
case SEMTIMEDOP:
- err = sys32_semtimedop (first, (struct sembuf *)AA(ptr), second,
- (const struct compat_timespec __user *)AA(fifth));
+ err = compat_sys_semtimedop(first, compat_ptr(ptr), second,
+ compat_ptr(fifth));
break;
case SEMGET:
- err = sys_semget (first, second, third);
+ err = sys_semget(first, second, third);
break;
case SEMCTL:
- err = do_sys32_semctl (first, second, third,
- (void *)AA(ptr));
+ err = compat_sys_semctl(first, second, third, compat_ptr(ptr));
break;
-
case MSGSND:
- err = do_sys32_msgsnd (first, second, third,
- (void *)AA(ptr));
+ err = compat_sys_msgsnd(first, second, third, compat_ptr(ptr));
break;
case MSGRCV:
- err = do_sys32_msgrcv (first, second, fifth, third,
- version, (void *)AA(ptr));
+ err = compat_sys_msgrcv(first, second, fifth, third,
+ version, compat_ptr(ptr));
break;
case MSGGET:
- err = sys_msgget ((key_t) first, second);
+ err = sys_msgget((key_t) first, second);
break;
case MSGCTL:
- err = do_sys32_msgctl (first, second, (void *)AA(ptr));
+ err = compat_sys_msgctl(first, second, compat_ptr(ptr));
break;
-
case SHMAT:
- err = do_sys32_shmat (first, second, third,
- version, (void *)AA(ptr));
+ err = compat_sys_shmat(first, second, third, version,
+ compat_ptr(ptr));
break;
case SHMDT:
- err = sys_shmdt ((char *)A(ptr));
+ err = sys_shmdt(compat_ptr(ptr));
break;
case SHMGET:
- err = sys_shmget (first, second, third);
+ err = sys_shmget(first, (unsigned)second, third);
break;
case SHMCTL:
- err = do_sys32_shmctl (first, second, (void *)AA(ptr));
+ err = compat_sys_shmctl(first, second, compat_ptr(ptr));
break;
default:
err = -EINVAL;
return err;
}
-asmlinkage long sys32_shmat(int shmid, char __user *shmaddr,
- int shmflg, int32_t *addr)
+#ifdef CONFIG_MIPS32_N32
+asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, u32 arg)
{
- unsigned long raddr;
- int err;
+ /* compat_sys_semctl expects a pointer to union semun */
+ u32 __user *uptr = compat_alloc_user_space(sizeof(u32));
+ if (put_user(arg, uptr))
+ return -EFAULT;
+ return compat_sys_semctl(semid, semnum, cmd, uptr);
+}
- err = do_shmat(shmid, shmaddr, shmflg, &raddr);
- if (err)
- return err;
+asmlinkage long sysn32_msgsnd(int msqid, u32 msgp, unsigned msgsz, int msgflg)
+{
+ return compat_sys_msgsnd(msqid, msgsz, msgflg, compat_ptr(msgp));
+}
- return put_user(raddr, addr);
+asmlinkage long sysn32_msgrcv(int msqid, u32 msgp, size_t msgsz, int msgtyp,
+ int msgflg)
+{
+ return compat_sys_msgrcv(msqid, msgsz, msgtyp, msgflg, IPC_64,
+ compat_ptr(msgp));
}
+#endif
struct sysctl_args32
{
unsigned int __unused[4];
};
-#ifdef CONFIG_SYSCTL
+#ifdef CONFIG_SYSCTL_SYSCALL
-asmlinkage long sys32_sysctl(struct sysctl_args32 *args)
+asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args)
{
struct sysctl_args32 tmp;
int error;
- size_t oldlen, *oldlenp = NULL;
- unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
+ size_t oldlen;
+ size_t __user *oldlenp = NULL;
+ unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
if (copy_from_user(&tmp, args, sizeof(tmp)))
return -EFAULT;
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))
+ if (get_user(oldlen, (u32 __user *)A(tmp.oldlenp)) ||
+ put_user(oldlen, (size_t __user *)addr))
return -EFAULT;
- oldlenp = (size_t *)addr;
+ oldlenp = (size_t __user *)addr;
}
lock_kernel();
- error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
- oldlenp, (void *)A(tmp.newval), tmp.newlen);
+ error = do_sysctl((int __user *)A(tmp.name), tmp.nlen, (void __user *)A(tmp.oldval),
+ oldlenp, (void __user *)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)))
+ if (get_user(oldlen, (size_t __user *)addr) ||
+ put_user(oldlen, (u32 __user *)A(tmp.oldlenp)))
error = -EFAULT;
}
copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
return error;
}
-#else /* CONFIG_SYSCTL */
+#endif /* CONFIG_SYSCTL_SYSCALL */
-asmlinkage long sys32_sysctl(struct sysctl_args32 *args)
-{
- return -ENOSYS;
-}
-
-#endif /* CONFIG_SYSCTL */
-
-asmlinkage long sys32_newuname(struct new_utsname * name)
+asmlinkage long sys32_newuname(struct new_utsname __user * name)
{
int ret = 0;
down_read(&uts_sem);
- if (copy_to_user(name, vx_new_utsname(), sizeof *name))
+ if (copy_to_user(name, utsname(), sizeof *name))
ret = -EFAULT;
up_read(&uts_sem);
asmlinkage int sys32_personality(unsigned long personality)
{
int ret;
- if (current->personality == PER_LINUX32 && personality == PER_LINUX)
+ personality &= 0xffffffff;
+ if (personality(current->personality) == PER_LINUX32 &&
+ personality == PER_LINUX)
personality = PER_LINUX32;
ret = sys_personality(personality);
if (ret == PER_LINUX32)
char f_fpack[6];
};
-extern asmlinkage long sys_ustat(dev_t dev, struct ustat * ubuf);
+extern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf);
-asmlinkage int sys32_ustat(dev_t dev, struct ustat32 * ubuf32)
+asmlinkage int sys32_ustat(dev_t dev, struct ustat32 __user * ubuf32)
{
int err;
struct ustat tmp;
mm_segment_t old_fs = get_fs();
set_fs(KERNEL_DS);
- err = sys_ustat(dev, &tmp);
+ err = sys_ustat(dev, (struct ustat __user *)&tmp);
set_fs (old_fs);
if (err)
return err;
}
-/* Handle adjtimex compatibility. */
-
-struct timex32 {
- u32 modes;
- s32 offset, freq, maxerror, esterror;
- s32 status, constant, precision, tolerance;
- struct compat_timeval time;
- s32 tick;
- s32 ppsfreq, jitter, shift, stabil;
- s32 jitcnt, calcnt, errcnt, stbcnt;
- s32 :32; s32 :32; s32 :32; s32 :32;
- s32 :32; s32 :32; s32 :32; s32 :32;
- s32 :32; s32 :32; s32 :32; s32 :32;
-};
-
-extern int do_adjtimex(struct timex *);
-
-asmlinkage int sys32_adjtimex(struct timex32 *utp)
-{
- struct timex txc;
- int ret;
-
- memset(&txc, 0, sizeof(struct timex));
-
- if (get_user(txc.modes, &utp->modes) ||
- __get_user(txc.offset, &utp->offset) ||
- __get_user(txc.freq, &utp->freq) ||
- __get_user(txc.maxerror, &utp->maxerror) ||
- __get_user(txc.esterror, &utp->esterror) ||
- __get_user(txc.status, &utp->status) ||
- __get_user(txc.constant, &utp->constant) ||
- __get_user(txc.precision, &utp->precision) ||
- __get_user(txc.tolerance, &utp->tolerance) ||
- __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
- __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
- __get_user(txc.tick, &utp->tick) ||
- __get_user(txc.ppsfreq, &utp->ppsfreq) ||
- __get_user(txc.jitter, &utp->jitter) ||
- __get_user(txc.shift, &utp->shift) ||
- __get_user(txc.stabil, &utp->stabil) ||
- __get_user(txc.jitcnt, &utp->jitcnt) ||
- __get_user(txc.calcnt, &utp->calcnt) ||
- __get_user(txc.errcnt, &utp->errcnt) ||
- __get_user(txc.stbcnt, &utp->stbcnt))
- return -EFAULT;
-
- ret = do_adjtimex(&txc);
-
- if (put_user(txc.modes, &utp->modes) ||
- __put_user(txc.offset, &utp->offset) ||
- __put_user(txc.freq, &utp->freq) ||
- __put_user(txc.maxerror, &utp->maxerror) ||
- __put_user(txc.esterror, &utp->esterror) ||
- __put_user(txc.status, &utp->status) ||
- __put_user(txc.constant, &utp->constant) ||
- __put_user(txc.precision, &utp->precision) ||
- __put_user(txc.tolerance, &utp->tolerance) ||
- __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
- __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
- __put_user(txc.tick, &utp->tick) ||
- __put_user(txc.ppsfreq, &utp->ppsfreq) ||
- __put_user(txc.jitter, &utp->jitter) ||
- __put_user(txc.shift, &utp->shift) ||
- __put_user(txc.stabil, &utp->stabil) ||
- __put_user(txc.jitcnt, &utp->jitcnt) ||
- __put_user(txc.calcnt, &utp->calcnt) ||
- __put_user(txc.errcnt, &utp->errcnt) ||
- __put_user(txc.stbcnt, &utp->stbcnt))
- ret = -EFAULT;
-
- return ret;
-}
-
-asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset,
+asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
s32 count)
{
mm_segment_t old_fs = get_fs();
int ret;
off_t of;
-
+
if (offset && get_user(of, offset))
return -EFAULT;
-
+
set_fs(KERNEL_DS);
- ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
+ ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, count);
set_fs(old_fs);
-
+
if (offset && put_user(of, offset))
return -EFAULT;
-
+
return ret;
}
return sys_readahead(fd, merge_64(a2, a3), count);
}
+asmlinkage long sys32_sync_file_range(int fd, int __pad,
+ unsigned long a2, unsigned long a3,
+ unsigned long a4, unsigned long a5,
+ int flags)
+{
+ return sys_sync_file_range(fd,
+ merge_64(a2, a3), merge_64(a4, a5),
+ flags);
+}
+
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned int))
static unsigned char socketcall_nargs[18]={AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
#undef AL
/*
- * System call vectors.
+ * System call vectors.
*
* Argument checking cleaned up. Saved 20% in size.
* This function doesn't need to set the kernel lock because
- * it is set by the callees.
+ * it is set by the callees.
*/
-asmlinkage long sys32_socketcall(int call, unsigned int *args32)
+asmlinkage long sys32_socketcall(int call, unsigned int __user *args32)
{
unsigned int a[6];
unsigned int a0,a1;
struct sockaddr __user *addr, int __user *addr_len);
extern asmlinkage long sys_shutdown(int fd, int how);
extern asmlinkage long sys_setsockopt(int fd, int level, int optname, char __user *optval, int optlen);
- extern asmlinkage long sys_getsockopt(int fd, int level, int optname, char __user *optval, int *optlen);
+ extern asmlinkage long sys_getsockopt(int fd, int level, int optname, char __user *optval, int __user *optlen);
extern asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
extern asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned int flags);
/* copy_from_user should be SMP safe. */
if (copy_from_user(a, args32, socketcall_nargs[call]))
return -EFAULT;
-
+
a0=a[0];
a1=a[1];
-
- switch(call)
+
+ switch(call)
{
case SYS_SOCKET:
err = sys_socket(a0,a1,a[2]);
}
return err;
}
+
+struct sigevent32 {
+ u32 sigev_value;
+ u32 sigev_signo;
+ u32 sigev_notify;
+ u32 payload[(64 / 4) - 3];
+};
+
+extern asmlinkage long
+sys_timer_create(clockid_t which_clock,
+ struct sigevent __user *timer_event_spec,
+ timer_t __user * created_timer_id);
+
+long
+sys32_timer_create(u32 clock, struct sigevent32 __user *se32, timer_t __user *timer_id)
+{
+ struct sigevent __user *p = NULL;
+ if (se32) {
+ struct sigevent se;
+ p = compat_alloc_user_space(sizeof(struct sigevent));
+ memset(&se, 0, sizeof(struct sigevent));
+ if (get_user(se.sigev_value.sival_int, &se32->sigev_value) ||
+ __get_user(se.sigev_signo, &se32->sigev_signo) ||
+ __get_user(se.sigev_notify, &se32->sigev_notify) ||
+ __copy_from_user(&se._sigev_un._pad, &se32->payload,
+ sizeof(se32->payload)) ||
+ copy_to_user(p, &se, sizeof(se)))
+ return -EFAULT;
+ }
+ return sys_timer_create(clock, p, timer_id);
+}
+
+save_static_function(sys32_clone);
+__attribute_used__ noinline static int
+_sys32_clone(nabi_no_regargs struct pt_regs regs)
+{
+ unsigned long clone_flags;
+ unsigned long newsp;
+ int __user *parent_tidptr, *child_tidptr;
+
+ clone_flags = regs.regs[4];
+ newsp = regs.regs[5];
+ if (!newsp)
+ newsp = regs.regs[29];
+ parent_tidptr = (int __user *) regs.regs[6];
+
+ /* Use __dummy4 instead of getting it off the stack, so that
+ syscall() works. */
+ child_tidptr = (int __user *) __dummy4;
+ return do_fork(clone_flags, newsp, ®s, 0,
+ parent_tidptr, child_tidptr);
+}
git://git.onelab.eu / linux-2.6.git / blobdiff