mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 11:11:13 +07:00
b24413180f
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1441 lines
34 KiB
C
1441 lines
34 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* linux/arch/alpha/kernel/osf_sys.c
|
|
*
|
|
* Copyright (C) 1995 Linus Torvalds
|
|
*/
|
|
|
|
/*
|
|
* This file handles some of the stranger OSF/1 system call interfaces.
|
|
* Some of the system calls expect a non-C calling standard, others have
|
|
* special parameter blocks..
|
|
*/
|
|
|
|
#include <linux/errno.h>
|
|
#include <linux/sched/signal.h>
|
|
#include <linux/sched/mm.h>
|
|
#include <linux/sched/task_stack.h>
|
|
#include <linux/sched/cputime.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/smp.h>
|
|
#include <linux/stddef.h>
|
|
#include <linux/syscalls.h>
|
|
#include <linux/unistd.h>
|
|
#include <linux/ptrace.h>
|
|
#include <linux/user.h>
|
|
#include <linux/utsname.h>
|
|
#include <linux/time.h>
|
|
#include <linux/timex.h>
|
|
#include <linux/major.h>
|
|
#include <linux/stat.h>
|
|
#include <linux/mman.h>
|
|
#include <linux/shm.h>
|
|
#include <linux/poll.h>
|
|
#include <linux/file.h>
|
|
#include <linux/types.h>
|
|
#include <linux/ipc.h>
|
|
#include <linux/namei.h>
|
|
#include <linux/uio.h>
|
|
#include <linux/vfs.h>
|
|
#include <linux/rcupdate.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <asm/fpu.h>
|
|
#include <asm/io.h>
|
|
#include <linux/uaccess.h>
|
|
#include <asm/sysinfo.h>
|
|
#include <asm/thread_info.h>
|
|
#include <asm/hwrpb.h>
|
|
#include <asm/processor.h>
|
|
|
|
/*
|
|
* Brk needs to return an error. Still support Linux's brk(0) query idiom,
|
|
* which OSF programs just shouldn't be doing. We're still not quite
|
|
* identical to OSF as we don't return 0 on success, but doing otherwise
|
|
* would require changes to libc. Hopefully this is good enough.
|
|
*/
|
|
SYSCALL_DEFINE1(osf_brk, unsigned long, brk)
|
|
{
|
|
unsigned long retval = sys_brk(brk);
|
|
if (brk && brk != retval)
|
|
retval = -ENOMEM;
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* This is pure guess-work..
|
|
*/
|
|
SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
|
|
unsigned long, text_len, unsigned long, bss_start,
|
|
unsigned long, bss_len)
|
|
{
|
|
struct mm_struct *mm;
|
|
|
|
mm = current->mm;
|
|
mm->end_code = bss_start + bss_len;
|
|
mm->start_brk = bss_start + bss_len;
|
|
mm->brk = bss_start + bss_len;
|
|
#if 0
|
|
printk("set_program_attributes(%lx %lx %lx %lx)\n",
|
|
text_start, text_len, bss_start, bss_len);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* OSF/1 directory handling functions...
|
|
*
|
|
* The "getdents()" interface is much more sane: the "basep" stuff is
|
|
* braindamage (it can't really handle filesystems where the directory
|
|
* offset differences aren't the same as "d_reclen").
|
|
*/
|
|
#define NAME_OFFSET offsetof (struct osf_dirent, d_name)
|
|
|
|
struct osf_dirent {
|
|
unsigned int d_ino;
|
|
unsigned short d_reclen;
|
|
unsigned short d_namlen;
|
|
char d_name[1];
|
|
};
|
|
|
|
struct osf_dirent_callback {
|
|
struct dir_context ctx;
|
|
struct osf_dirent __user *dirent;
|
|
long __user *basep;
|
|
unsigned int count;
|
|
int error;
|
|
};
|
|
|
|
static int
|
|
osf_filldir(struct dir_context *ctx, const char *name, int namlen,
|
|
loff_t offset, u64 ino, unsigned int d_type)
|
|
{
|
|
struct osf_dirent __user *dirent;
|
|
struct osf_dirent_callback *buf =
|
|
container_of(ctx, struct osf_dirent_callback, ctx);
|
|
unsigned int reclen = ALIGN(NAME_OFFSET + namlen + 1, sizeof(u32));
|
|
unsigned int d_ino;
|
|
|
|
buf->error = -EINVAL; /* only used if we fail */
|
|
if (reclen > buf->count)
|
|
return -EINVAL;
|
|
d_ino = ino;
|
|
if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
|
|
buf->error = -EOVERFLOW;
|
|
return -EOVERFLOW;
|
|
}
|
|
if (buf->basep) {
|
|
if (put_user(offset, buf->basep))
|
|
goto Efault;
|
|
buf->basep = NULL;
|
|
}
|
|
dirent = buf->dirent;
|
|
if (put_user(d_ino, &dirent->d_ino) ||
|
|
put_user(namlen, &dirent->d_namlen) ||
|
|
put_user(reclen, &dirent->d_reclen) ||
|
|
copy_to_user(dirent->d_name, name, namlen) ||
|
|
put_user(0, dirent->d_name + namlen))
|
|
goto Efault;
|
|
dirent = (void __user *)dirent + reclen;
|
|
buf->dirent = dirent;
|
|
buf->count -= reclen;
|
|
return 0;
|
|
Efault:
|
|
buf->error = -EFAULT;
|
|
return -EFAULT;
|
|
}
|
|
|
|
SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd,
|
|
struct osf_dirent __user *, dirent, unsigned int, count,
|
|
long __user *, basep)
|
|
{
|
|
int error;
|
|
struct fd arg = fdget_pos(fd);
|
|
struct osf_dirent_callback buf = {
|
|
.ctx.actor = osf_filldir,
|
|
.dirent = dirent,
|
|
.basep = basep,
|
|
.count = count
|
|
};
|
|
|
|
if (!arg.file)
|
|
return -EBADF;
|
|
|
|
error = iterate_dir(arg.file, &buf.ctx);
|
|
if (error >= 0)
|
|
error = buf.error;
|
|
if (count != buf.count)
|
|
error = count - buf.count;
|
|
|
|
fdput_pos(arg);
|
|
return error;
|
|
}
|
|
|
|
#undef NAME_OFFSET
|
|
|
|
SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len,
|
|
unsigned long, prot, unsigned long, flags, unsigned long, fd,
|
|
unsigned long, off)
|
|
{
|
|
unsigned long ret = -EINVAL;
|
|
|
|
#if 0
|
|
if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED))
|
|
printk("%s: unimplemented OSF mmap flags %04lx\n",
|
|
current->comm, flags);
|
|
#endif
|
|
if ((off + PAGE_ALIGN(len)) < off)
|
|
goto out;
|
|
if (off & ~PAGE_MASK)
|
|
goto out;
|
|
ret = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
struct osf_stat {
|
|
int st_dev;
|
|
int st_pad1;
|
|
unsigned st_mode;
|
|
unsigned short st_nlink;
|
|
short st_nlink_reserved;
|
|
unsigned st_uid;
|
|
unsigned st_gid;
|
|
int st_rdev;
|
|
int st_ldev;
|
|
long st_size;
|
|
int st_pad2;
|
|
int st_uatime;
|
|
int st_pad3;
|
|
int st_umtime;
|
|
int st_pad4;
|
|
int st_uctime;
|
|
int st_pad5;
|
|
int st_pad6;
|
|
unsigned st_flags;
|
|
unsigned st_gen;
|
|
long st_spare[4];
|
|
unsigned st_ino;
|
|
int st_ino_reserved;
|
|
int st_atime;
|
|
int st_atime_reserved;
|
|
int st_mtime;
|
|
int st_mtime_reserved;
|
|
int st_ctime;
|
|
int st_ctime_reserved;
|
|
long st_blksize;
|
|
long st_blocks;
|
|
};
|
|
|
|
/*
|
|
* The OSF/1 statfs structure is much larger, but this should
|
|
* match the beginning, at least.
|
|
*/
|
|
struct osf_statfs {
|
|
short f_type;
|
|
short f_flags;
|
|
int f_fsize;
|
|
int f_bsize;
|
|
int f_blocks;
|
|
int f_bfree;
|
|
int f_bavail;
|
|
int f_files;
|
|
int f_ffree;
|
|
__kernel_fsid_t f_fsid;
|
|
};
|
|
|
|
struct osf_statfs64 {
|
|
short f_type;
|
|
short f_flags;
|
|
int f_pad1;
|
|
int f_pad2;
|
|
int f_pad3;
|
|
int f_pad4;
|
|
int f_pad5;
|
|
int f_pad6;
|
|
int f_pad7;
|
|
__kernel_fsid_t f_fsid;
|
|
u_short f_namemax;
|
|
short f_reserved1;
|
|
int f_spare[8];
|
|
char f_pad8[90];
|
|
char f_pad9[90];
|
|
long mount_info[10];
|
|
u_long f_flags2;
|
|
long f_spare2[14];
|
|
long f_fsize;
|
|
long f_bsize;
|
|
long f_blocks;
|
|
long f_bfree;
|
|
long f_bavail;
|
|
long f_files;
|
|
long f_ffree;
|
|
};
|
|
|
|
static int
|
|
linux_to_osf_stat(struct kstat *lstat, struct osf_stat __user *osf_stat)
|
|
{
|
|
struct osf_stat tmp = { 0 };
|
|
|
|
tmp.st_dev = lstat->dev;
|
|
tmp.st_mode = lstat->mode;
|
|
tmp.st_nlink = lstat->nlink;
|
|
tmp.st_uid = from_kuid_munged(current_user_ns(), lstat->uid);
|
|
tmp.st_gid = from_kgid_munged(current_user_ns(), lstat->gid);
|
|
tmp.st_rdev = lstat->rdev;
|
|
tmp.st_ldev = lstat->rdev;
|
|
tmp.st_size = lstat->size;
|
|
tmp.st_uatime = lstat->atime.tv_nsec / 1000;
|
|
tmp.st_umtime = lstat->mtime.tv_nsec / 1000;
|
|
tmp.st_uctime = lstat->ctime.tv_nsec / 1000;
|
|
tmp.st_ino = lstat->ino;
|
|
tmp.st_atime = lstat->atime.tv_sec;
|
|
tmp.st_mtime = lstat->mtime.tv_sec;
|
|
tmp.st_ctime = lstat->ctime.tv_sec;
|
|
tmp.st_blksize = lstat->blksize;
|
|
tmp.st_blocks = lstat->blocks;
|
|
|
|
return copy_to_user(osf_stat, &tmp, sizeof(tmp)) ? -EFAULT : 0;
|
|
}
|
|
|
|
static int
|
|
linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat,
|
|
unsigned long bufsiz)
|
|
{
|
|
struct osf_statfs tmp_stat;
|
|
|
|
tmp_stat.f_type = linux_stat->f_type;
|
|
tmp_stat.f_flags = 0; /* mount flags */
|
|
tmp_stat.f_fsize = linux_stat->f_frsize;
|
|
tmp_stat.f_bsize = linux_stat->f_bsize;
|
|
tmp_stat.f_blocks = linux_stat->f_blocks;
|
|
tmp_stat.f_bfree = linux_stat->f_bfree;
|
|
tmp_stat.f_bavail = linux_stat->f_bavail;
|
|
tmp_stat.f_files = linux_stat->f_files;
|
|
tmp_stat.f_ffree = linux_stat->f_ffree;
|
|
tmp_stat.f_fsid = linux_stat->f_fsid;
|
|
if (bufsiz > sizeof(tmp_stat))
|
|
bufsiz = sizeof(tmp_stat);
|
|
return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
|
|
}
|
|
|
|
static int
|
|
linux_to_osf_statfs64(struct kstatfs *linux_stat, struct osf_statfs64 __user *osf_stat,
|
|
unsigned long bufsiz)
|
|
{
|
|
struct osf_statfs64 tmp_stat = { 0 };
|
|
|
|
tmp_stat.f_type = linux_stat->f_type;
|
|
tmp_stat.f_fsize = linux_stat->f_frsize;
|
|
tmp_stat.f_bsize = linux_stat->f_bsize;
|
|
tmp_stat.f_blocks = linux_stat->f_blocks;
|
|
tmp_stat.f_bfree = linux_stat->f_bfree;
|
|
tmp_stat.f_bavail = linux_stat->f_bavail;
|
|
tmp_stat.f_files = linux_stat->f_files;
|
|
tmp_stat.f_ffree = linux_stat->f_ffree;
|
|
tmp_stat.f_fsid = linux_stat->f_fsid;
|
|
if (bufsiz > sizeof(tmp_stat))
|
|
bufsiz = sizeof(tmp_stat);
|
|
return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
|
|
}
|
|
|
|
SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname,
|
|
struct osf_statfs __user *, buffer, unsigned long, bufsiz)
|
|
{
|
|
struct kstatfs linux_stat;
|
|
int error = user_statfs(pathname, &linux_stat);
|
|
if (!error)
|
|
error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
|
|
return error;
|
|
}
|
|
|
|
SYSCALL_DEFINE2(osf_stat, char __user *, name, struct osf_stat __user *, buf)
|
|
{
|
|
struct kstat stat;
|
|
int error;
|
|
|
|
error = vfs_stat(name, &stat);
|
|
if (error)
|
|
return error;
|
|
|
|
return linux_to_osf_stat(&stat, buf);
|
|
}
|
|
|
|
SYSCALL_DEFINE2(osf_lstat, char __user *, name, struct osf_stat __user *, buf)
|
|
{
|
|
struct kstat stat;
|
|
int error;
|
|
|
|
error = vfs_lstat(name, &stat);
|
|
if (error)
|
|
return error;
|
|
|
|
return linux_to_osf_stat(&stat, buf);
|
|
}
|
|
|
|
SYSCALL_DEFINE2(osf_fstat, int, fd, struct osf_stat __user *, buf)
|
|
{
|
|
struct kstat stat;
|
|
int error;
|
|
|
|
error = vfs_fstat(fd, &stat);
|
|
if (error)
|
|
return error;
|
|
|
|
return linux_to_osf_stat(&stat, buf);
|
|
}
|
|
|
|
SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd,
|
|
struct osf_statfs __user *, buffer, unsigned long, bufsiz)
|
|
{
|
|
struct kstatfs linux_stat;
|
|
int error = fd_statfs(fd, &linux_stat);
|
|
if (!error)
|
|
error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
|
|
return error;
|
|
}
|
|
|
|
SYSCALL_DEFINE3(osf_statfs64, char __user *, pathname,
|
|
struct osf_statfs64 __user *, buffer, unsigned long, bufsiz)
|
|
{
|
|
struct kstatfs linux_stat;
|
|
int error = user_statfs(pathname, &linux_stat);
|
|
if (!error)
|
|
error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz);
|
|
return error;
|
|
}
|
|
|
|
SYSCALL_DEFINE3(osf_fstatfs64, unsigned long, fd,
|
|
struct osf_statfs64 __user *, buffer, unsigned long, bufsiz)
|
|
{
|
|
struct kstatfs linux_stat;
|
|
int error = fd_statfs(fd, &linux_stat);
|
|
if (!error)
|
|
error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz);
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Uhh.. OSF/1 mount parameters aren't exactly obvious..
|
|
*
|
|
* Although to be frank, neither are the native Linux/i386 ones..
|
|
*/
|
|
struct ufs_args {
|
|
char __user *devname;
|
|
int flags;
|
|
uid_t exroot;
|
|
};
|
|
|
|
struct cdfs_args {
|
|
char __user *devname;
|
|
int flags;
|
|
uid_t exroot;
|
|
|
|
/* This has lots more here, which Linux handles with the option block
|
|
but I'm too lazy to do the translation into ASCII. */
|
|
};
|
|
|
|
struct procfs_args {
|
|
char __user *devname;
|
|
int flags;
|
|
uid_t exroot;
|
|
};
|
|
|
|
/*
|
|
* We can't actually handle ufs yet, so we translate UFS mounts to
|
|
* ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS
|
|
* layout is so braindead it's a major headache doing it.
|
|
*
|
|
* Just how long ago was it written? OTOH our UFS driver may be still
|
|
* unhappy with OSF UFS. [CHECKME]
|
|
*/
|
|
static int
|
|
osf_ufs_mount(const char __user *dirname,
|
|
struct ufs_args __user *args, int flags)
|
|
{
|
|
int retval;
|
|
struct cdfs_args tmp;
|
|
struct filename *devname;
|
|
|
|
retval = -EFAULT;
|
|
if (copy_from_user(&tmp, args, sizeof(tmp)))
|
|
goto out;
|
|
devname = getname(tmp.devname);
|
|
retval = PTR_ERR(devname);
|
|
if (IS_ERR(devname))
|
|
goto out;
|
|
retval = do_mount(devname->name, dirname, "ext2", flags, NULL);
|
|
putname(devname);
|
|
out:
|
|
return retval;
|
|
}
|
|
|
|
static int
|
|
osf_cdfs_mount(const char __user *dirname,
|
|
struct cdfs_args __user *args, int flags)
|
|
{
|
|
int retval;
|
|
struct cdfs_args tmp;
|
|
struct filename *devname;
|
|
|
|
retval = -EFAULT;
|
|
if (copy_from_user(&tmp, args, sizeof(tmp)))
|
|
goto out;
|
|
devname = getname(tmp.devname);
|
|
retval = PTR_ERR(devname);
|
|
if (IS_ERR(devname))
|
|
goto out;
|
|
retval = do_mount(devname->name, dirname, "iso9660", flags, NULL);
|
|
putname(devname);
|
|
out:
|
|
return retval;
|
|
}
|
|
|
|
static int
|
|
osf_procfs_mount(const char __user *dirname,
|
|
struct procfs_args __user *args, int flags)
|
|
{
|
|
struct procfs_args tmp;
|
|
|
|
if (copy_from_user(&tmp, args, sizeof(tmp)))
|
|
return -EFAULT;
|
|
|
|
return do_mount("", dirname, "proc", flags, NULL);
|
|
}
|
|
|
|
SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path,
|
|
int, flag, void __user *, data)
|
|
{
|
|
int retval;
|
|
|
|
switch (typenr) {
|
|
case 1:
|
|
retval = osf_ufs_mount(path, data, flag);
|
|
break;
|
|
case 6:
|
|
retval = osf_cdfs_mount(path, data, flag);
|
|
break;
|
|
case 9:
|
|
retval = osf_procfs_mount(path, data, flag);
|
|
break;
|
|
default:
|
|
retval = -EINVAL;
|
|
printk("osf_mount(%ld, %x)\n", typenr, flag);
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
SYSCALL_DEFINE1(osf_utsname, char __user *, name)
|
|
{
|
|
int error;
|
|
|
|
down_read(&uts_sem);
|
|
error = -EFAULT;
|
|
if (copy_to_user(name + 0, utsname()->sysname, 32))
|
|
goto out;
|
|
if (copy_to_user(name + 32, utsname()->nodename, 32))
|
|
goto out;
|
|
if (copy_to_user(name + 64, utsname()->release, 32))
|
|
goto out;
|
|
if (copy_to_user(name + 96, utsname()->version, 32))
|
|
goto out;
|
|
if (copy_to_user(name + 128, utsname()->machine, 32))
|
|
goto out;
|
|
|
|
error = 0;
|
|
out:
|
|
up_read(&uts_sem);
|
|
return error;
|
|
}
|
|
|
|
SYSCALL_DEFINE0(getpagesize)
|
|
{
|
|
return PAGE_SIZE;
|
|
}
|
|
|
|
SYSCALL_DEFINE0(getdtablesize)
|
|
{
|
|
return sysctl_nr_open;
|
|
}
|
|
|
|
/*
|
|
* For compatibility with OSF/1 only. Use utsname(2) instead.
|
|
*/
|
|
SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen)
|
|
{
|
|
int len, err = 0;
|
|
char *kname;
|
|
|
|
if (namelen > 32)
|
|
namelen = 32;
|
|
|
|
down_read(&uts_sem);
|
|
kname = utsname()->domainname;
|
|
len = strnlen(kname, namelen);
|
|
if (copy_to_user(name, kname, min(len + 1, namelen)))
|
|
err = -EFAULT;
|
|
up_read(&uts_sem);
|
|
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* The following stuff should move into a header file should it ever
|
|
* be labeled "officially supported." Right now, there is just enough
|
|
* support to avoid applications (such as tar) printing error
|
|
* messages. The attributes are not really implemented.
|
|
*/
|
|
|
|
/*
|
|
* Values for Property list entry flag
|
|
*/
|
|
#define PLE_PROPAGATE_ON_COPY 0x1 /* cp(1) will copy entry
|
|
by default */
|
|
#define PLE_FLAG_MASK 0x1 /* Valid flag values */
|
|
#define PLE_FLAG_ALL -1 /* All flag value */
|
|
|
|
struct proplistname_args {
|
|
unsigned int pl_mask;
|
|
unsigned int pl_numnames;
|
|
char **pl_names;
|
|
};
|
|
|
|
union pl_args {
|
|
struct setargs {
|
|
char __user *path;
|
|
long follow;
|
|
long nbytes;
|
|
char __user *buf;
|
|
} set;
|
|
struct fsetargs {
|
|
long fd;
|
|
long nbytes;
|
|
char __user *buf;
|
|
} fset;
|
|
struct getargs {
|
|
char __user *path;
|
|
long follow;
|
|
struct proplistname_args __user *name_args;
|
|
long nbytes;
|
|
char __user *buf;
|
|
int __user *min_buf_size;
|
|
} get;
|
|
struct fgetargs {
|
|
long fd;
|
|
struct proplistname_args __user *name_args;
|
|
long nbytes;
|
|
char __user *buf;
|
|
int __user *min_buf_size;
|
|
} fget;
|
|
struct delargs {
|
|
char __user *path;
|
|
long follow;
|
|
struct proplistname_args __user *name_args;
|
|
} del;
|
|
struct fdelargs {
|
|
long fd;
|
|
struct proplistname_args __user *name_args;
|
|
} fdel;
|
|
};
|
|
|
|
enum pl_code {
|
|
PL_SET = 1, PL_FSET = 2,
|
|
PL_GET = 3, PL_FGET = 4,
|
|
PL_DEL = 5, PL_FDEL = 6
|
|
};
|
|
|
|
SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
|
|
union pl_args __user *, args)
|
|
{
|
|
long error;
|
|
int __user *min_buf_size_ptr;
|
|
|
|
switch (code) {
|
|
case PL_SET:
|
|
if (get_user(error, &args->set.nbytes))
|
|
error = -EFAULT;
|
|
break;
|
|
case PL_FSET:
|
|
if (get_user(error, &args->fset.nbytes))
|
|
error = -EFAULT;
|
|
break;
|
|
case PL_GET:
|
|
error = get_user(min_buf_size_ptr, &args->get.min_buf_size);
|
|
if (error)
|
|
break;
|
|
error = put_user(0, min_buf_size_ptr);
|
|
break;
|
|
case PL_FGET:
|
|
error = get_user(min_buf_size_ptr, &args->fget.min_buf_size);
|
|
if (error)
|
|
break;
|
|
error = put_user(0, min_buf_size_ptr);
|
|
break;
|
|
case PL_DEL:
|
|
case PL_FDEL:
|
|
error = 0;
|
|
break;
|
|
default:
|
|
error = -EOPNOTSUPP;
|
|
break;
|
|
};
|
|
return error;
|
|
}
|
|
|
|
SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss,
|
|
struct sigstack __user *, uoss)
|
|
{
|
|
unsigned long usp = rdusp();
|
|
unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size;
|
|
unsigned long oss_os = on_sig_stack(usp);
|
|
int error;
|
|
|
|
if (uss) {
|
|
void __user *ss_sp;
|
|
|
|
error = -EFAULT;
|
|
if (get_user(ss_sp, &uss->ss_sp))
|
|
goto out;
|
|
|
|
/* If the current stack was set with sigaltstack, don't
|
|
swap stacks while we are on it. */
|
|
error = -EPERM;
|
|
if (current->sas_ss_sp && on_sig_stack(usp))
|
|
goto out;
|
|
|
|
/* Since we don't know the extent of the stack, and we don't
|
|
track onstack-ness, but rather calculate it, we must
|
|
presume a size. Ho hum this interface is lossy. */
|
|
current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ;
|
|
current->sas_ss_size = SIGSTKSZ;
|
|
}
|
|
|
|
if (uoss) {
|
|
error = -EFAULT;
|
|
if (put_user(oss_sp, &uoss->ss_sp) ||
|
|
put_user(oss_os, &uoss->ss_onstack))
|
|
goto out;
|
|
}
|
|
|
|
error = 0;
|
|
out:
|
|
return error;
|
|
}
|
|
|
|
SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
|
|
{
|
|
const char *sysinfo_table[] = {
|
|
utsname()->sysname,
|
|
utsname()->nodename,
|
|
utsname()->release,
|
|
utsname()->version,
|
|
utsname()->machine,
|
|
"alpha", /* instruction set architecture */
|
|
"dummy", /* hardware serial number */
|
|
"dummy", /* hardware manufacturer */
|
|
"dummy", /* secure RPC domain */
|
|
};
|
|
unsigned long offset;
|
|
const char *res;
|
|
long len, err = -EINVAL;
|
|
|
|
offset = command-1;
|
|
if (offset >= ARRAY_SIZE(sysinfo_table)) {
|
|
/* Digital UNIX has a few unpublished interfaces here */
|
|
printk("sysinfo(%d)", command);
|
|
goto out;
|
|
}
|
|
|
|
down_read(&uts_sem);
|
|
res = sysinfo_table[offset];
|
|
len = strlen(res)+1;
|
|
if ((unsigned long)len > (unsigned long)count)
|
|
len = count;
|
|
if (copy_to_user(buf, res, len))
|
|
err = -EFAULT;
|
|
else
|
|
err = 0;
|
|
up_read(&uts_sem);
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer,
|
|
unsigned long, nbytes, int __user *, start, void __user *, arg)
|
|
{
|
|
unsigned long w;
|
|
struct percpu_struct *cpu;
|
|
|
|
switch (op) {
|
|
case GSI_IEEE_FP_CONTROL:
|
|
/* Return current software fp control & status bits. */
|
|
/* Note that DU doesn't verify available space here. */
|
|
|
|
w = current_thread_info()->ieee_state & IEEE_SW_MASK;
|
|
w = swcr_update_status(w, rdfpcr());
|
|
if (put_user(w, (unsigned long __user *) buffer))
|
|
return -EFAULT;
|
|
return 0;
|
|
|
|
case GSI_IEEE_STATE_AT_SIGNAL:
|
|
/*
|
|
* Not sure anybody will ever use this weird stuff. These
|
|
* ops can be used (under OSF/1) to set the fpcr that should
|
|
* be used when a signal handler starts executing.
|
|
*/
|
|
break;
|
|
|
|
case GSI_UACPROC:
|
|
if (nbytes < sizeof(unsigned int))
|
|
return -EINVAL;
|
|
w = current_thread_info()->status & UAC_BITMASK;
|
|
if (put_user(w, (unsigned int __user *)buffer))
|
|
return -EFAULT;
|
|
return 1;
|
|
|
|
case GSI_PROC_TYPE:
|
|
if (nbytes < sizeof(unsigned long))
|
|
return -EINVAL;
|
|
cpu = (struct percpu_struct*)
|
|
((char*)hwrpb + hwrpb->processor_offset);
|
|
w = cpu->type;
|
|
if (put_user(w, (unsigned long __user*)buffer))
|
|
return -EFAULT;
|
|
return 1;
|
|
|
|
case GSI_GET_HWRPB:
|
|
if (nbytes > sizeof(*hwrpb))
|
|
return -EINVAL;
|
|
if (copy_to_user(buffer, hwrpb, nbytes) != 0)
|
|
return -EFAULT;
|
|
return 1;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer,
|
|
unsigned long, nbytes, int __user *, start, void __user *, arg)
|
|
{
|
|
switch (op) {
|
|
case SSI_IEEE_FP_CONTROL: {
|
|
unsigned long swcr, fpcr;
|
|
unsigned int *state;
|
|
|
|
/*
|
|
* Alpha Architecture Handbook 4.7.7.3:
|
|
* To be fully IEEE compiant, we must track the current IEEE
|
|
* exception state in software, because spurious bits can be
|
|
* set in the trap shadow of a software-complete insn.
|
|
*/
|
|
|
|
if (get_user(swcr, (unsigned long __user *)buffer))
|
|
return -EFAULT;
|
|
state = ¤t_thread_info()->ieee_state;
|
|
|
|
/* Update softare trap enable bits. */
|
|
*state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK);
|
|
|
|
/* Update the real fpcr. */
|
|
fpcr = rdfpcr() & FPCR_DYN_MASK;
|
|
fpcr |= ieee_swcr_to_fpcr(swcr);
|
|
wrfpcr(fpcr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
case SSI_IEEE_RAISE_EXCEPTION: {
|
|
unsigned long exc, swcr, fpcr, fex;
|
|
unsigned int *state;
|
|
|
|
if (get_user(exc, (unsigned long __user *)buffer))
|
|
return -EFAULT;
|
|
state = ¤t_thread_info()->ieee_state;
|
|
exc &= IEEE_STATUS_MASK;
|
|
|
|
/* Update softare trap enable bits. */
|
|
swcr = (*state & IEEE_SW_MASK) | exc;
|
|
*state |= exc;
|
|
|
|
/* Update the real fpcr. */
|
|
fpcr = rdfpcr();
|
|
fpcr |= ieee_swcr_to_fpcr(swcr);
|
|
wrfpcr(fpcr);
|
|
|
|
/* If any exceptions set by this call, and are unmasked,
|
|
send a signal. Old exceptions are not signaled. */
|
|
fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr;
|
|
if (fex) {
|
|
siginfo_t info;
|
|
int si_code = 0;
|
|
|
|
if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND;
|
|
if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES;
|
|
if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND;
|
|
if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF;
|
|
if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV;
|
|
if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV;
|
|
|
|
info.si_signo = SIGFPE;
|
|
info.si_errno = 0;
|
|
info.si_code = si_code;
|
|
info.si_addr = NULL; /* FIXME */
|
|
send_sig_info(SIGFPE, &info, current);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
case SSI_IEEE_STATE_AT_SIGNAL:
|
|
case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
|
|
/*
|
|
* Not sure anybody will ever use this weird stuff. These
|
|
* ops can be used (under OSF/1) to set the fpcr that should
|
|
* be used when a signal handler starts executing.
|
|
*/
|
|
break;
|
|
|
|
case SSI_NVPAIRS: {
|
|
unsigned __user *p = buffer;
|
|
unsigned i;
|
|
|
|
for (i = 0, p = buffer; i < nbytes; ++i, p += 2) {
|
|
unsigned v, w, status;
|
|
|
|
if (get_user(v, p) || get_user(w, p + 1))
|
|
return -EFAULT;
|
|
switch (v) {
|
|
case SSIN_UACPROC:
|
|
w &= UAC_BITMASK;
|
|
status = current_thread_info()->status;
|
|
status = (status & ~UAC_BITMASK) | w;
|
|
current_thread_info()->status = status;
|
|
break;
|
|
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
case SSI_LMF:
|
|
return 0;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
/* Translations due to the fact that OSF's time_t is an int. Which
|
|
affects all sorts of things, like timeval and itimerval. */
|
|
|
|
extern struct timezone sys_tz;
|
|
|
|
struct timeval32
|
|
{
|
|
int tv_sec, tv_usec;
|
|
};
|
|
|
|
struct itimerval32
|
|
{
|
|
struct timeval32 it_interval;
|
|
struct timeval32 it_value;
|
|
};
|
|
|
|
static inline long
|
|
get_tv32(struct timeval *o, struct timeval32 __user *i)
|
|
{
|
|
struct timeval32 tv;
|
|
if (copy_from_user(&tv, i, sizeof(struct timeval32)))
|
|
return -EFAULT;
|
|
o->tv_sec = tv.tv_sec;
|
|
o->tv_usec = tv.tv_usec;
|
|
return 0;
|
|
}
|
|
|
|
static inline long
|
|
put_tv32(struct timeval32 __user *o, struct timeval *i)
|
|
{
|
|
return copy_to_user(o, &(struct timeval32){
|
|
.tv_sec = o->tv_sec,
|
|
.tv_usec = o->tv_usec},
|
|
sizeof(struct timeval32));
|
|
}
|
|
|
|
static inline long
|
|
get_it32(struct itimerval *o, struct itimerval32 __user *i)
|
|
{
|
|
struct itimerval32 itv;
|
|
if (copy_from_user(&itv, i, sizeof(struct itimerval32)))
|
|
return -EFAULT;
|
|
o->it_interval.tv_sec = itv.it_interval.tv_sec;
|
|
o->it_interval.tv_usec = itv.it_interval.tv_usec;
|
|
o->it_value.tv_sec = itv.it_value.tv_sec;
|
|
o->it_value.tv_usec = itv.it_value.tv_usec;
|
|
return 0;
|
|
}
|
|
|
|
static inline long
|
|
put_it32(struct itimerval32 __user *o, struct itimerval *i)
|
|
{
|
|
return copy_to_user(o, &(struct itimerval32){
|
|
.it_interval.tv_sec = o->it_interval.tv_sec,
|
|
.it_interval.tv_usec = o->it_interval.tv_usec,
|
|
.it_value.tv_sec = o->it_value.tv_sec,
|
|
.it_value.tv_usec = o->it_value.tv_usec},
|
|
sizeof(struct itimerval32));
|
|
}
|
|
|
|
static inline void
|
|
jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value)
|
|
{
|
|
value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
|
|
value->tv_sec = jiffies / HZ;
|
|
}
|
|
|
|
SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv,
|
|
struct timezone __user *, tz)
|
|
{
|
|
if (tv) {
|
|
struct timeval ktv;
|
|
do_gettimeofday(&ktv);
|
|
if (put_tv32(tv, &ktv))
|
|
return -EFAULT;
|
|
}
|
|
if (tz) {
|
|
if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
|
|
return -EFAULT;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv,
|
|
struct timezone __user *, tz)
|
|
{
|
|
struct timespec64 kts64;
|
|
struct timespec kts;
|
|
struct timezone ktz;
|
|
|
|
if (tv) {
|
|
if (get_tv32((struct timeval *)&kts, tv))
|
|
return -EFAULT;
|
|
kts.tv_nsec *= 1000;
|
|
kts64 = timespec_to_timespec64(kts);
|
|
}
|
|
if (tz) {
|
|
if (copy_from_user(&ktz, tz, sizeof(*tz)))
|
|
return -EFAULT;
|
|
}
|
|
|
|
return do_sys_settimeofday64(tv ? &kts64 : NULL, tz ? &ktz : NULL);
|
|
}
|
|
|
|
asmlinkage long sys_ni_posix_timers(void);
|
|
|
|
SYSCALL_DEFINE2(osf_getitimer, int, which, struct itimerval32 __user *, it)
|
|
{
|
|
struct itimerval kit;
|
|
int error;
|
|
|
|
if (!IS_ENABLED(CONFIG_POSIX_TIMERS))
|
|
return sys_ni_posix_timers();
|
|
|
|
error = do_getitimer(which, &kit);
|
|
if (!error && put_it32(it, &kit))
|
|
error = -EFAULT;
|
|
|
|
return error;
|
|
}
|
|
|
|
SYSCALL_DEFINE3(osf_setitimer, int, which, struct itimerval32 __user *, in,
|
|
struct itimerval32 __user *, out)
|
|
{
|
|
struct itimerval kin, kout;
|
|
int error;
|
|
|
|
if (!IS_ENABLED(CONFIG_POSIX_TIMERS))
|
|
return sys_ni_posix_timers();
|
|
|
|
if (in) {
|
|
if (get_it32(&kin, in))
|
|
return -EFAULT;
|
|
} else
|
|
memset(&kin, 0, sizeof(kin));
|
|
|
|
error = do_setitimer(which, &kin, out ? &kout : NULL);
|
|
if (error || !out)
|
|
return error;
|
|
|
|
if (put_it32(out, &kout))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
SYSCALL_DEFINE2(osf_utimes, const char __user *, filename,
|
|
struct timeval32 __user *, tvs)
|
|
{
|
|
struct timespec tv[2];
|
|
|
|
if (tvs) {
|
|
struct timeval ktvs[2];
|
|
if (get_tv32(&ktvs[0], &tvs[0]) ||
|
|
get_tv32(&ktvs[1], &tvs[1]))
|
|
return -EFAULT;
|
|
|
|
if (ktvs[0].tv_usec < 0 || ktvs[0].tv_usec >= 1000000 ||
|
|
ktvs[1].tv_usec < 0 || ktvs[1].tv_usec >= 1000000)
|
|
return -EINVAL;
|
|
|
|
tv[0].tv_sec = ktvs[0].tv_sec;
|
|
tv[0].tv_nsec = 1000 * ktvs[0].tv_usec;
|
|
tv[1].tv_sec = ktvs[1].tv_sec;
|
|
tv[1].tv_nsec = 1000 * ktvs[1].tv_usec;
|
|
}
|
|
|
|
return do_utimes(AT_FDCWD, filename, tvs ? tv : NULL, 0);
|
|
}
|
|
|
|
SYSCALL_DEFINE5(osf_select, int, n, fd_set __user *, inp, fd_set __user *, outp,
|
|
fd_set __user *, exp, struct timeval32 __user *, tvp)
|
|
{
|
|
struct timespec end_time, *to = NULL;
|
|
if (tvp) {
|
|
struct timeval tv;
|
|
to = &end_time;
|
|
|
|
if (get_tv32(&tv, tvp))
|
|
return -EFAULT;
|
|
|
|
if (tv.tv_sec < 0 || tv.tv_usec < 0)
|
|
return -EINVAL;
|
|
|
|
if (poll_select_set_timeout(to, tv.tv_sec,
|
|
tv.tv_usec * NSEC_PER_USEC))
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
/* OSF does not copy back the remaining time. */
|
|
return core_sys_select(n, inp, outp, exp, to);
|
|
}
|
|
|
|
struct rusage32 {
|
|
struct timeval32 ru_utime; /* user time used */
|
|
struct timeval32 ru_stime; /* system time used */
|
|
long ru_maxrss; /* maximum resident set size */
|
|
long ru_ixrss; /* integral shared memory size */
|
|
long ru_idrss; /* integral unshared data size */
|
|
long ru_isrss; /* integral unshared stack size */
|
|
long ru_minflt; /* page reclaims */
|
|
long ru_majflt; /* page faults */
|
|
long ru_nswap; /* swaps */
|
|
long ru_inblock; /* block input operations */
|
|
long ru_oublock; /* block output operations */
|
|
long ru_msgsnd; /* messages sent */
|
|
long ru_msgrcv; /* messages received */
|
|
long ru_nsignals; /* signals received */
|
|
long ru_nvcsw; /* voluntary context switches */
|
|
long ru_nivcsw; /* involuntary " */
|
|
};
|
|
|
|
SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru)
|
|
{
|
|
struct rusage32 r;
|
|
u64 utime, stime;
|
|
unsigned long utime_jiffies, stime_jiffies;
|
|
|
|
if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN)
|
|
return -EINVAL;
|
|
|
|
memset(&r, 0, sizeof(r));
|
|
switch (who) {
|
|
case RUSAGE_SELF:
|
|
task_cputime(current, &utime, &stime);
|
|
utime_jiffies = nsecs_to_jiffies(utime);
|
|
stime_jiffies = nsecs_to_jiffies(stime);
|
|
jiffies_to_timeval32(utime_jiffies, &r.ru_utime);
|
|
jiffies_to_timeval32(stime_jiffies, &r.ru_stime);
|
|
r.ru_minflt = current->min_flt;
|
|
r.ru_majflt = current->maj_flt;
|
|
break;
|
|
case RUSAGE_CHILDREN:
|
|
utime_jiffies = nsecs_to_jiffies(current->signal->cutime);
|
|
stime_jiffies = nsecs_to_jiffies(current->signal->cstime);
|
|
jiffies_to_timeval32(utime_jiffies, &r.ru_utime);
|
|
jiffies_to_timeval32(stime_jiffies, &r.ru_stime);
|
|
r.ru_minflt = current->signal->cmin_flt;
|
|
r.ru_majflt = current->signal->cmaj_flt;
|
|
break;
|
|
}
|
|
|
|
return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
|
|
}
|
|
|
|
SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options,
|
|
struct rusage32 __user *, ur)
|
|
{
|
|
unsigned int status = 0;
|
|
struct rusage r;
|
|
long err = kernel_wait4(pid, &status, options, &r);
|
|
if (err <= 0)
|
|
return err;
|
|
if (put_user(status, ustatus))
|
|
return -EFAULT;
|
|
if (!ur)
|
|
return err;
|
|
if (put_tv32(&ur->ru_utime, &r.ru_utime))
|
|
return -EFAULT;
|
|
if (put_tv32(&ur->ru_stime, &r.ru_stime))
|
|
return -EFAULT;
|
|
if (copy_to_user(&ur->ru_maxrss, &r.ru_maxrss,
|
|
sizeof(struct rusage32) - offsetof(struct rusage32, ru_maxrss)))
|
|
return -EFAULT;
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* I don't know what the parameters are: the first one
|
|
* seems to be a timeval pointer, and I suspect the second
|
|
* one is the time remaining.. Ho humm.. No documentation.
|
|
*/
|
|
SYSCALL_DEFINE2(osf_usleep_thread, struct timeval32 __user *, sleep,
|
|
struct timeval32 __user *, remain)
|
|
{
|
|
struct timeval tmp;
|
|
unsigned long ticks;
|
|
|
|
if (get_tv32(&tmp, sleep))
|
|
goto fault;
|
|
|
|
ticks = timeval_to_jiffies(&tmp);
|
|
|
|
ticks = schedule_timeout_interruptible(ticks);
|
|
|
|
if (remain) {
|
|
jiffies_to_timeval(ticks, &tmp);
|
|
if (put_tv32(remain, &tmp))
|
|
goto fault;
|
|
}
|
|
|
|
return 0;
|
|
fault:
|
|
return -EFAULT;
|
|
}
|
|
|
|
|
|
struct timex32 {
|
|
unsigned int modes; /* mode selector */
|
|
long offset; /* time offset (usec) */
|
|
long freq; /* frequency offset (scaled ppm) */
|
|
long maxerror; /* maximum error (usec) */
|
|
long esterror; /* estimated error (usec) */
|
|
int status; /* clock command/status */
|
|
long constant; /* pll time constant */
|
|
long precision; /* clock precision (usec) (read only) */
|
|
long tolerance; /* clock frequency tolerance (ppm)
|
|
* (read only)
|
|
*/
|
|
struct timeval32 time; /* (read only) */
|
|
long tick; /* (modified) usecs between clock ticks */
|
|
|
|
long ppsfreq; /* pps frequency (scaled ppm) (ro) */
|
|
long jitter; /* pps jitter (us) (ro) */
|
|
int shift; /* interval duration (s) (shift) (ro) */
|
|
long stabil; /* pps stability (scaled ppm) (ro) */
|
|
long jitcnt; /* jitter limit exceeded (ro) */
|
|
long calcnt; /* calibration intervals (ro) */
|
|
long errcnt; /* calibration errors (ro) */
|
|
long stbcnt; /* stability limit exceeded (ro) */
|
|
|
|
int :32; int :32; int :32; int :32;
|
|
int :32; int :32; int :32; int :32;
|
|
int :32; int :32; int :32; int :32;
|
|
};
|
|
|
|
SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p)
|
|
{
|
|
struct timex txc;
|
|
int ret;
|
|
|
|
/* copy relevant bits of struct timex. */
|
|
if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) ||
|
|
copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) -
|
|
offsetof(struct timex32, tick)))
|
|
return -EFAULT;
|
|
|
|
ret = do_adjtimex(&txc);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* copy back to timex32 */
|
|
if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) ||
|
|
(copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) -
|
|
offsetof(struct timex32, tick))) ||
|
|
(put_tv32(&txc_p->time, &txc.time)))
|
|
return -EFAULT;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Get an address range which is currently unmapped. Similar to the
|
|
generic version except that we know how to honor ADDR_LIMIT_32BIT. */
|
|
|
|
static unsigned long
|
|
arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
|
|
unsigned long limit)
|
|
{
|
|
struct vm_unmapped_area_info info;
|
|
|
|
info.flags = 0;
|
|
info.length = len;
|
|
info.low_limit = addr;
|
|
info.high_limit = limit;
|
|
info.align_mask = 0;
|
|
info.align_offset = 0;
|
|
return vm_unmapped_area(&info);
|
|
}
|
|
|
|
unsigned long
|
|
arch_get_unmapped_area(struct file *filp, unsigned long addr,
|
|
unsigned long len, unsigned long pgoff,
|
|
unsigned long flags)
|
|
{
|
|
unsigned long limit;
|
|
|
|
/* "32 bit" actually means 31 bit, since pointers sign extend. */
|
|
if (current->personality & ADDR_LIMIT_32BIT)
|
|
limit = 0x80000000;
|
|
else
|
|
limit = TASK_SIZE;
|
|
|
|
if (len > limit)
|
|
return -ENOMEM;
|
|
|
|
if (flags & MAP_FIXED)
|
|
return addr;
|
|
|
|
/* First, see if the given suggestion fits.
|
|
|
|
The OSF/1 loader (/sbin/loader) relies on us returning an
|
|
address larger than the requested if one exists, which is
|
|
a terribly broken way to program.
|
|
|
|
That said, I can see the use in being able to suggest not
|
|
merely specific addresses, but regions of memory -- perhaps
|
|
this feature should be incorporated into all ports? */
|
|
|
|
if (addr) {
|
|
addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
|
|
if (addr != (unsigned long) -ENOMEM)
|
|
return addr;
|
|
}
|
|
|
|
/* Next, try allocating at TASK_UNMAPPED_BASE. */
|
|
addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
|
|
len, limit);
|
|
if (addr != (unsigned long) -ENOMEM)
|
|
return addr;
|
|
|
|
/* Finally, try allocating in low memory. */
|
|
addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
|
|
|
|
return addr;
|
|
}
|
|
|
|
#ifdef CONFIG_OSF4_COMPAT
|
|
|
|
/* Clear top 32 bits of iov_len in the user's buffer for
|
|
compatibility with old versions of OSF/1 where iov_len
|
|
was defined as int. */
|
|
static int
|
|
osf_fix_iov_len(const struct iovec __user *iov, unsigned long count)
|
|
{
|
|
unsigned long i;
|
|
|
|
for (i = 0 ; i < count ; i++) {
|
|
int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1;
|
|
|
|
if (put_user(0, iov_len_high))
|
|
return -EFAULT;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
SYSCALL_DEFINE3(osf_readv, unsigned long, fd,
|
|
const struct iovec __user *, vector, unsigned long, count)
|
|
{
|
|
if (unlikely(personality(current->personality) == PER_OSF4))
|
|
if (osf_fix_iov_len(vector, count))
|
|
return -EFAULT;
|
|
return sys_readv(fd, vector, count);
|
|
}
|
|
|
|
SYSCALL_DEFINE3(osf_writev, unsigned long, fd,
|
|
const struct iovec __user *, vector, unsigned long, count)
|
|
{
|
|
if (unlikely(personality(current->personality) == PER_OSF4))
|
|
if (osf_fix_iov_len(vector, count))
|
|
return -EFAULT;
|
|
return sys_writev(fd, vector, count);
|
|
}
|
|
|
|
#endif
|
|
|
|
SYSCALL_DEFINE2(osf_getpriority, int, which, int, who)
|
|
{
|
|
int prio = sys_getpriority(which, who);
|
|
if (prio >= 0) {
|
|
/* Return value is the unbiased priority, i.e. 20 - prio.
|
|
This does result in negative return values, so signal
|
|
no error */
|
|
force_successful_syscall_return();
|
|
prio = 20 - prio;
|
|
}
|
|
return prio;
|
|
}
|
|
|
|
SYSCALL_DEFINE0(getxuid)
|
|
{
|
|
current_pt_regs()->r20 = sys_geteuid();
|
|
return sys_getuid();
|
|
}
|
|
|
|
SYSCALL_DEFINE0(getxgid)
|
|
{
|
|
current_pt_regs()->r20 = sys_getegid();
|
|
return sys_getgid();
|
|
}
|
|
|
|
SYSCALL_DEFINE0(getxpid)
|
|
{
|
|
current_pt_regs()->r20 = sys_getppid();
|
|
return sys_getpid();
|
|
}
|
|
|
|
SYSCALL_DEFINE0(alpha_pipe)
|
|
{
|
|
int fd[2];
|
|
int res = do_pipe_flags(fd, 0);
|
|
if (!res) {
|
|
/* The return values are in $0 and $20. */
|
|
current_pt_regs()->r20 = fd[1];
|
|
res = fd[0];
|
|
}
|
|
return res;
|
|
}
|
|
|
|
SYSCALL_DEFINE1(sethae, unsigned long, val)
|
|
{
|
|
current_pt_regs()->hae = val;
|
|
return 0;
|
|
}
|