+++ /dev/null
-/* $Id: fs.c,v 1.27 2002/02/08 03:57:14 davem Exp $
- * fs.c: fs related syscall emulation for Solaris
- *
- * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- *
- * 1999-08-19 Implemented solaris F_FREESP (truncate)
- * fcntl, by Jason Rappleye (rappleye@ccr.buffalo.edu)
- */
-
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/capability.h>
-#include <linux/fs.h>
-#include <linux/namei.h>
-#include <linux/mm.h>
-#include <linux/file.h>
-#include <linux/stat.h>
-#include <linux/smp_lock.h>
-#include <linux/limits.h>
-#include <linux/resource.h>
-#include <linux/quotaops.h>
-#include <linux/mount.h>
-#include <linux/vfs.h>
-
-#include <asm/uaccess.h>
-#include <asm/string.h>
-#include <asm/ptrace.h>
-
-#include "conv.h"
-
-#define R3_VERSION 1
-#define R4_VERSION 2
-
-typedef struct {
- s32 tv_sec;
- s32 tv_nsec;
-} timestruct_t;
-
-struct sol_stat {
- u32 st_dev;
- s32 st_pad1[3]; /* network id */
- u32 st_ino;
- u32 st_mode;
- u32 st_nlink;
- u32 st_uid;
- u32 st_gid;
- u32 st_rdev;
- s32 st_pad2[2];
- s32 st_size;
- s32 st_pad3; /* st_size, off_t expansion */
- timestruct_t st_atime;
- timestruct_t st_mtime;
- timestruct_t st_ctime;
- s32 st_blksize;
- s32 st_blocks;
- char st_fstype[16];
- s32 st_pad4[8]; /* expansion area */
-};
-
-struct sol_stat64 {
- u32 st_dev;
- s32 st_pad1[3]; /* network id */
- u64 st_ino;
- u32 st_mode;
- u32 st_nlink;
- u32 st_uid;
- u32 st_gid;
- u32 st_rdev;
- s32 st_pad2[2];
- s64 st_size;
- timestruct_t st_atime;
- timestruct_t st_mtime;
- timestruct_t st_ctime;
- s64 st_blksize;
- s32 st_blocks;
- char st_fstype[16];
- s32 st_pad4[4]; /* expansion area */
-};
-
-#define UFSMAGIC (((unsigned)'u'<<24)||((unsigned)'f'<<16)||((unsigned)'s'<<8))
-
-static inline int putstat(struct sol_stat __user *ubuf, struct kstat *kbuf)
-{
- u32 ino;
-
- if (kbuf->size > MAX_NON_LFS ||
- !sysv_valid_dev(kbuf->dev) ||
- !sysv_valid_dev(kbuf->rdev))
- return -EOVERFLOW;
- ino = kbuf->ino;
- if (sizeof(ino) < sizeof(kbuf->ino) && ino != kbuf->ino)
- return -EOVERFLOW;
- if (put_user (sysv_encode_dev(kbuf->dev), &ubuf->st_dev) ||
- __put_user (ino, &ubuf->st_ino) ||
- __put_user (kbuf->mode, &ubuf->st_mode) ||
- __put_user (kbuf->nlink, &ubuf->st_nlink) ||
- __put_user (kbuf->uid, &ubuf->st_uid) ||
- __put_user (kbuf->gid, &ubuf->st_gid) ||
- __put_user (sysv_encode_dev(kbuf->rdev), &ubuf->st_rdev) ||
- __put_user (kbuf->size, &ubuf->st_size) ||
- __put_user (kbuf->atime.tv_sec, &ubuf->st_atime.tv_sec) ||
- __put_user (kbuf->atime.tv_nsec, &ubuf->st_atime.tv_nsec) ||
- __put_user (kbuf->mtime.tv_sec, &ubuf->st_mtime.tv_sec) ||
- __put_user (kbuf->mtime.tv_nsec, &ubuf->st_mtime.tv_nsec) ||
- __put_user (kbuf->ctime.tv_sec, &ubuf->st_ctime.tv_sec) ||
- __put_user (kbuf->ctime.tv_nsec, &ubuf->st_ctime.tv_nsec) ||
- __put_user (kbuf->blksize, &ubuf->st_blksize) ||
- __put_user (kbuf->blocks, &ubuf->st_blocks) ||
- __put_user (UFSMAGIC, (unsigned __user *)ubuf->st_fstype))
- return -EFAULT;
- return 0;
-}
-
-static inline int putstat64(struct sol_stat64 __user *ubuf, struct kstat *kbuf)
-{
- if (!sysv_valid_dev(kbuf->dev) || !sysv_valid_dev(kbuf->rdev))
- return -EOVERFLOW;
- if (put_user (sysv_encode_dev(kbuf->dev), &ubuf->st_dev) ||
- __put_user (kbuf->ino, &ubuf->st_ino) ||
- __put_user (kbuf->mode, &ubuf->st_mode) ||
- __put_user (kbuf->nlink, &ubuf->st_nlink) ||
- __put_user (kbuf->uid, &ubuf->st_uid) ||
- __put_user (kbuf->gid, &ubuf->st_gid) ||
- __put_user (sysv_encode_dev(kbuf->rdev), &ubuf->st_rdev) ||
- __put_user (kbuf->size, &ubuf->st_size) ||
- __put_user (kbuf->atime.tv_sec, &ubuf->st_atime.tv_sec) ||
- __put_user (kbuf->atime.tv_nsec, &ubuf->st_atime.tv_nsec) ||
- __put_user (kbuf->mtime.tv_sec, &ubuf->st_mtime.tv_sec) ||
- __put_user (kbuf->mtime.tv_nsec, &ubuf->st_mtime.tv_nsec) ||
- __put_user (kbuf->ctime.tv_sec, &ubuf->st_ctime.tv_sec) ||
- __put_user (kbuf->ctime.tv_nsec, &ubuf->st_ctime.tv_nsec) ||
- __put_user (kbuf->blksize, &ubuf->st_blksize) ||
- __put_user (kbuf->blocks, &ubuf->st_blocks) ||
- __put_user (UFSMAGIC, (unsigned __user *)ubuf->st_fstype))
- return -EFAULT;
- return 0;
-}
-
-asmlinkage int solaris_stat(u32 filename, u32 statbuf)
-{
- struct kstat s;
- int ret = vfs_stat(A(filename), &s);
- if (!ret)
- return putstat(A(statbuf), &s);
- return ret;
-}
-
-asmlinkage int solaris_xstat(int vers, u32 filename, u32 statbuf)
-{
- /* Solaris doesn't bother with looking at vers, so we do neither */
- return solaris_stat(filename, statbuf);
-}
-
-asmlinkage int solaris_stat64(u32 filename, u32 statbuf)
-{
- struct kstat s;
- int ret = vfs_stat(A(filename), &s);
- if (!ret)
- return putstat64(A(statbuf), &s);
- return ret;
-}
-
-asmlinkage int solaris_lstat(u32 filename, u32 statbuf)
-{
- struct kstat s;
- int ret = vfs_lstat(A(filename), &s);
- if (!ret)
- return putstat(A(statbuf), &s);
- return ret;
-}
-
-asmlinkage int solaris_lxstat(int vers, u32 filename, u32 statbuf)
-{
- return solaris_lstat(filename, statbuf);
-}
-
-asmlinkage int solaris_lstat64(u32 filename, u32 statbuf)
-{
- struct kstat s;
- int ret = vfs_lstat(A(filename), &s);
- if (!ret)
- return putstat64(A(statbuf), &s);
- return ret;
-}
-
-asmlinkage int solaris_fstat(unsigned int fd, u32 statbuf)
-{
- struct kstat s;
- int ret = vfs_fstat(fd, &s);
- if (!ret)
- return putstat(A(statbuf), &s);
- return ret;
-}
-
-asmlinkage int solaris_fxstat(int vers, u32 fd, u32 statbuf)
-{
- return solaris_fstat(fd, statbuf);
-}
-
-asmlinkage int solaris_fstat64(unsigned int fd, u32 statbuf)
-{
- struct kstat s;
- int ret = vfs_fstat(fd, &s);
- if (!ret)
- return putstat64(A(statbuf), &s);
- return ret;
-}
-
-asmlinkage int solaris_mknod(u32 path, u32 mode, s32 dev)
-{
- int (*sys_mknod)(const char __user *,int,unsigned) =
- (int (*)(const char __user *,int,unsigned))SYS(mknod);
- int major = sysv_major(dev);
- int minor = sysv_minor(dev);
-
- /* minor is guaranteed to be OK for MKDEV, major might be not */
- if (major > 0xfff)
- return -EINVAL;
- return sys_mknod(A(path), mode, new_encode_dev(MKDEV(major,minor)));
-}
-
-asmlinkage int solaris_xmknod(int vers, u32 path, u32 mode, s32 dev)
-{
- return solaris_mknod(path, mode, dev);
-}
-
-asmlinkage int solaris_getdents64(unsigned int fd, void __user *dirent, unsigned int count)
-{
- int (*sys_getdents)(unsigned int, void __user *, unsigned int) =
- (int (*)(unsigned int, void __user *, unsigned int))SYS(getdents);
-
- return sys_getdents(fd, dirent, count);
-}
-
-/* This statfs thingie probably will go in the near future, but... */
-
-struct sol_statfs {
- short f_type;
- s32 f_bsize;
- s32 f_frsize;
- s32 f_blocks;
- s32 f_bfree;
- u32 f_files;
- u32 f_ffree;
- char f_fname[6];
- char f_fpack[6];
-};
-
-asmlinkage int solaris_statfs(u32 path, u32 buf, int len, int fstype)
-{
- int ret;
- struct statfs s;
- mm_segment_t old_fs = get_fs();
- int (*sys_statfs)(const char __user *,struct statfs __user *) =
- (int (*)(const char __user *,struct statfs __user *))SYS(statfs);
- struct sol_statfs __user *ss = A(buf);
-
- if (len != sizeof(struct sol_statfs)) return -EINVAL;
- if (!fstype) {
- /* FIXME: mixing userland and kernel pointers */
- set_fs (KERNEL_DS);
- ret = sys_statfs(A(path), &s);
- set_fs (old_fs);
- if (!ret) {
- if (put_user (s.f_type, &ss->f_type) ||
- __put_user (s.f_bsize, &ss->f_bsize) ||
- __put_user (0, &ss->f_frsize) ||
- __put_user (s.f_blocks, &ss->f_blocks) ||
- __put_user (s.f_bfree, &ss->f_bfree) ||
- __put_user (s.f_files, &ss->f_files) ||
- __put_user (s.f_ffree, &ss->f_ffree) ||
- __clear_user (&ss->f_fname, 12))
- return -EFAULT;
- }
- return ret;
- }
-/* Linux can't stat unmounted filesystems so we
- * simply lie and claim 100MB of 1GB is free. Sorry.
- */
- if (put_user (fstype, &ss->f_type) ||
- __put_user (1024, &ss->f_bsize) ||
- __put_user (0, &ss->f_frsize) ||
- __put_user (1024*1024, &ss->f_blocks) ||
- __put_user (100*1024, &ss->f_bfree) ||
- __put_user (60000, &ss->f_files) ||
- __put_user (50000, &ss->f_ffree) ||
- __clear_user (&ss->f_fname, 12))
- return -EFAULT;
- return 0;
-}
-
-asmlinkage int solaris_fstatfs(u32 fd, u32 buf, int len, int fstype)
-{
- int ret;
- struct statfs s;
- mm_segment_t old_fs = get_fs();
- int (*sys_fstatfs)(unsigned,struct statfs __user *) =
- (int (*)(unsigned,struct statfs __user *))SYS(fstatfs);
- struct sol_statfs __user *ss = A(buf);
-
- if (len != sizeof(struct sol_statfs)) return -EINVAL;
- if (!fstype) {
- set_fs (KERNEL_DS);
- ret = sys_fstatfs(fd, &s);
- set_fs (old_fs);
- if (!ret) {
- if (put_user (s.f_type, &ss->f_type) ||
- __put_user (s.f_bsize, &ss->f_bsize) ||
- __put_user (0, &ss->f_frsize) ||
- __put_user (s.f_blocks, &ss->f_blocks) ||
- __put_user (s.f_bfree, &ss->f_bfree) ||
- __put_user (s.f_files, &ss->f_files) ||
- __put_user (s.f_ffree, &ss->f_ffree) ||
- __clear_user (&ss->f_fname, 12))
- return -EFAULT;
- }
- return ret;
- }
- /* Otherwise fstatfs is the same as statfs */
- return solaris_statfs(0, buf, len, fstype);
-}
-
-struct sol_statvfs {
- u32 f_bsize;
- u32 f_frsize;
- u32 f_blocks;
- u32 f_bfree;
- u32 f_bavail;
- u32 f_files;
- u32 f_ffree;
- u32 f_favail;
- u32 f_fsid;
- char f_basetype[16];
- u32 f_flag;
- u32 f_namemax;
- char f_fstr[32];
- u32 f_filler[16];
-};
-
-struct sol_statvfs64 {
- u32 f_bsize;
- u32 f_frsize;
- u64 f_blocks;
- u64 f_bfree;
- u64 f_bavail;
- u64 f_files;
- u64 f_ffree;
- u64 f_favail;
- u32 f_fsid;
- char f_basetype[16];
- u32 f_flag;
- u32 f_namemax;
- char f_fstr[32];
- u32 f_filler[16];
-};
-
-static int report_statvfs(struct vfsmount *mnt, struct inode *inode, u32 buf)
-{
- struct kstatfs s;
- int error;
- struct sol_statvfs __user *ss = A(buf);
-
- error = vfs_statfs(mnt->mnt_root, &s);
- if (!error) {
- const char *p = mnt->mnt_sb->s_type->name;
- int i = 0;
- int j = strlen (p);
-
- if (j > 15) j = 15;
- if (IS_RDONLY(inode)) i = 1;
- if (mnt->mnt_flags & MNT_NOSUID) i |= 2;
- if (!sysv_valid_dev(inode->i_sb->s_dev))
- return -EOVERFLOW;
- if (put_user (s.f_bsize, &ss->f_bsize) ||
- __put_user (0, &ss->f_frsize) ||
- __put_user (s.f_blocks, &ss->f_blocks) ||
- __put_user (s.f_bfree, &ss->f_bfree) ||
- __put_user (s.f_bavail, &ss->f_bavail) ||
- __put_user (s.f_files, &ss->f_files) ||
- __put_user (s.f_ffree, &ss->f_ffree) ||
- __put_user (s.f_ffree, &ss->f_favail) ||
- __put_user (sysv_encode_dev(inode->i_sb->s_dev), &ss->f_fsid) ||
- __copy_to_user (ss->f_basetype,p,j) ||
- __put_user (0, (char __user *)&ss->f_basetype[j]) ||
- __put_user (s.f_namelen, &ss->f_namemax) ||
- __put_user (i, &ss->f_flag) ||
- __clear_user (&ss->f_fstr, 32))
- return -EFAULT;
- }
- return error;
-}
-
-static int report_statvfs64(struct vfsmount *mnt, struct inode *inode, u32 buf)
-{
- struct kstatfs s;
- int error;
- struct sol_statvfs64 __user *ss = A(buf);
-
- error = vfs_statfs(mnt->mnt_root, &s);
- if (!error) {
- const char *p = mnt->mnt_sb->s_type->name;
- int i = 0;
- int j = strlen (p);
-
- if (j > 15) j = 15;
- if (IS_RDONLY(inode)) i = 1;
- if (mnt->mnt_flags & MNT_NOSUID) i |= 2;
- if (!sysv_valid_dev(inode->i_sb->s_dev))
- return -EOVERFLOW;
- if (put_user (s.f_bsize, &ss->f_bsize) ||
- __put_user (0, &ss->f_frsize) ||
- __put_user (s.f_blocks, &ss->f_blocks) ||
- __put_user (s.f_bfree, &ss->f_bfree) ||
- __put_user (s.f_bavail, &ss->f_bavail) ||
- __put_user (s.f_files, &ss->f_files) ||
- __put_user (s.f_ffree, &ss->f_ffree) ||
- __put_user (s.f_ffree, &ss->f_favail) ||
- __put_user (sysv_encode_dev(inode->i_sb->s_dev), &ss->f_fsid) ||
- __copy_to_user (ss->f_basetype,p,j) ||
- __put_user (0, (char __user *)&ss->f_basetype[j]) ||
- __put_user (s.f_namelen, &ss->f_namemax) ||
- __put_user (i, &ss->f_flag) ||
- __clear_user (&ss->f_fstr, 32))
- return -EFAULT;
- }
- return error;
-}
-
-asmlinkage int solaris_statvfs(u32 path, u32 buf)
-{
- struct nameidata nd;
- int error;
-
- error = user_path_walk(A(path),&nd);
- if (!error) {
- struct inode *inode = nd.path.dentry->d_inode;
- error = report_statvfs(nd.path.mnt, inode, buf);
- path_put(&nd.path);
- }
- return error;
-}
-
-asmlinkage int solaris_fstatvfs(unsigned int fd, u32 buf)
-{
- struct file * file;
- int error;
-
- error = -EBADF;
- file = fget(fd);
- if (file) {
- error = report_statvfs(file->f_path.mnt, file->f_path.dentry->d_inode, buf);
- fput(file);
- }
-
- return error;
-}
-
-asmlinkage int solaris_statvfs64(u32 path, u32 buf)
-{
- struct nameidata nd;
- int error;
-
- lock_kernel();
- error = user_path_walk(A(path), &nd);
- if (!error) {
- struct inode *inode = nd.path.dentry->d_inode;
- error = report_statvfs64(nd.path.mnt, inode, buf);
- path_put(&nd.path);
- }
- unlock_kernel();
- return error;
-}
-
-asmlinkage int solaris_fstatvfs64(unsigned int fd, u32 buf)
-{
- struct file * file;
- int error;
-
- error = -EBADF;
- file = fget(fd);
- if (file) {
- lock_kernel();
- error = report_statvfs64(file->f_path.mnt, file->f_path.dentry->d_inode, buf);
- unlock_kernel();
- fput(file);
- }
- return error;
-}
-
-extern asmlinkage long sparc32_open(const char * filename, int flags, int mode);
-
-asmlinkage int solaris_open(u32 fname, int flags, u32 mode)
-{
- const char *filename = (const char *)(long)fname;
- int fl = flags & 0xf;
-
- /* Translate flags first. */
- if (flags & 0x2000) fl |= O_LARGEFILE;
- if (flags & 0x8050) fl |= O_SYNC;
- if (flags & 0x80) fl |= O_NONBLOCK;
- if (flags & 0x100) fl |= O_CREAT;
- if (flags & 0x200) fl |= O_TRUNC;
- if (flags & 0x400) fl |= O_EXCL;
- if (flags & 0x800) fl |= O_NOCTTY;
- flags = fl;
-
- return sparc32_open(filename, flags, mode);
-}
-
-#define SOL_F_SETLK 6
-#define SOL_F_SETLKW 7
-#define SOL_F_FREESP 11
-#define SOL_F_ISSTREAM 13
-#define SOL_F_GETLK 14
-#define SOL_F_PRIV 15
-#define SOL_F_NPRIV 16
-#define SOL_F_QUOTACTL 17
-#define SOL_F_BLOCKS 18
-#define SOL_F_BLKSIZE 19
-#define SOL_F_GETOWN 23
-#define SOL_F_SETOWN 24
-
-struct sol_flock {
- short l_type;
- short l_whence;
- u32 l_start;
- u32 l_len;
- s32 l_sysid;
- s32 l_pid;
- s32 l_pad[4];
-};
-
-asmlinkage int solaris_fcntl(unsigned fd, unsigned cmd, u32 arg)
-{
- int (*sys_fcntl)(unsigned,unsigned,unsigned long) =
- (int (*)(unsigned,unsigned,unsigned long))SYS(fcntl);
- int ret, flags;
-
- switch (cmd) {
- case F_DUPFD:
- case F_GETFD:
- case F_SETFD: return sys_fcntl(fd, cmd, (unsigned long)arg);
- case F_GETFL:
- flags = sys_fcntl(fd, cmd, 0);
- ret = flags & 0xf;
- if (flags & O_SYNC) ret |= 0x8050;
- if (flags & O_NONBLOCK) ret |= 0x80;
- return ret;
- case F_SETFL:
- flags = arg & 0xf;
- if (arg & 0x8050) flags |= O_SYNC;
- if (arg & 0x80) flags |= O_NONBLOCK;
- return sys_fcntl(fd, cmd, (long)flags);
- case SOL_F_GETLK:
- case SOL_F_SETLK:
- case SOL_F_SETLKW:
- {
- struct flock f;
- struct sol_flock __user *p = A(arg);
- mm_segment_t old_fs = get_fs();
-
- switch (cmd) {
- case SOL_F_GETLK: cmd = F_GETLK; break;
- case SOL_F_SETLK: cmd = F_SETLK; break;
- case SOL_F_SETLKW: cmd = F_SETLKW; break;
- }
-
- if (get_user (f.l_type, &p->l_type) ||
- __get_user (f.l_whence, &p->l_whence) ||
- __get_user (f.l_start, &p->l_start) ||
- __get_user (f.l_len, &p->l_len) ||
- __get_user (f.l_pid, &p->l_sysid))
- return -EFAULT;
-
- set_fs(KERNEL_DS);
- ret = sys_fcntl(fd, cmd, (unsigned long)&f);
- set_fs(old_fs);
-
- if (__put_user (f.l_type, &p->l_type) ||
- __put_user (f.l_whence, &p->l_whence) ||
- __put_user (f.l_start, &p->l_start) ||
- __put_user (f.l_len, &p->l_len) ||
- __put_user (f.l_pid, &p->l_pid) ||
- __put_user (0, &p->l_sysid))
- return -EFAULT;
-
- return ret;
- }
- case SOL_F_FREESP:
- {
- int length;
- int (*sys_newftruncate)(unsigned int, unsigned long)=
- (int (*)(unsigned int, unsigned long))SYS(ftruncate);
-
- if (get_user(length, &((struct sol_flock __user *)A(arg))->l_start))
- return -EFAULT;
-
- return sys_newftruncate(fd, length);
- }
- };
- return -EINVAL;
-}
-
-asmlinkage int solaris_ulimit(int cmd, int val)
-{
- switch (cmd) {
- case 1: /* UL_GETFSIZE - in 512B chunks */
- return current->signal->rlim[RLIMIT_FSIZE].rlim_cur >> 9;
- case 2: /* UL_SETFSIZE */
- if ((unsigned long)val > (LONG_MAX>>9)) return -ERANGE;
- val <<= 9;
- task_lock(current->group_leader);
- if (val > current->signal->rlim[RLIMIT_FSIZE].rlim_max) {
- if (!capable(CAP_SYS_RESOURCE)) {
- task_unlock(current->group_leader);
- return -EPERM;
- }
- current->signal->rlim[RLIMIT_FSIZE].rlim_max = val;
- }
- current->signal->rlim[RLIMIT_FSIZE].rlim_cur = val;
- task_unlock(current->group_leader);
- return 0;
- case 3: /* UL_GMEMLIM */
- return current->signal->rlim[RLIMIT_DATA].rlim_cur;
- case 4: /* UL_GDESLIM */
- return sysctl_nr_open;
- }
- return -EINVAL;
-}
-
-/* At least at the time I'm writing this, Linux doesn't have ACLs, so we
- just fake this */
-asmlinkage int solaris_acl(u32 filename, int cmd, int nentries, u32 aclbufp)
-{
- return -ENOSYS;
-}
-
-asmlinkage int solaris_facl(unsigned int fd, int cmd, int nentries, u32 aclbufp)
-{
- return -ENOSYS;
-}
-
-asmlinkage int solaris_pread(unsigned int fd, char __user *buf, u32 count, u32 pos)
-{
- ssize_t (*sys_pread64)(unsigned int, char __user *, size_t, loff_t) =
- (ssize_t (*)(unsigned int, char __user *, size_t, loff_t))SYS(pread64);
-
- return sys_pread64(fd, buf, count, (loff_t)pos);
-}
-
-asmlinkage int solaris_pwrite(unsigned int fd, char __user *buf, u32 count, u32 pos)
-{
- ssize_t (*sys_pwrite64)(unsigned int, char __user *, size_t, loff_t) =
- (ssize_t (*)(unsigned int, char __user *, size_t, loff_t))SYS(pwrite64);
-
- return sys_pwrite64(fd, buf, count, (loff_t)pos);
-}
-
-/* POSIX.1 names */
-#define _PC_LINK_MAX 1
-#define _PC_MAX_CANON 2
-#define _PC_MAX_INPUT 3
-#define _PC_NAME_MAX 4
-#define _PC_PATH_MAX 5
-#define _PC_PIPE_BUF 6
-#define _PC_NO_TRUNC 7
-#define _PC_VDISABLE 8
-#define _PC_CHOWN_RESTRICTED 9
-/* POSIX.4 names */
-#define _PC_ASYNC_IO 10
-#define _PC_PRIO_IO 11
-#define _PC_SYNC_IO 12
-#define _PC_LAST 12
-
-/* This is not a real and complete implementation yet, just to keep
- * the easy Solaris binaries happy.
- */
-asmlinkage int solaris_fpathconf(int fd, int name)
-{
- int ret;
-
- switch(name) {
- case _PC_LINK_MAX:
- ret = LINK_MAX;
- break;
- case _PC_MAX_CANON:
- ret = MAX_CANON;
- break;
- case _PC_MAX_INPUT:
- ret = MAX_INPUT;
- break;
- case _PC_NAME_MAX:
- ret = NAME_MAX;
- break;
- case _PC_PATH_MAX:
- ret = PATH_MAX;
- break;
- case _PC_PIPE_BUF:
- ret = PIPE_BUF;
- break;
- case _PC_CHOWN_RESTRICTED:
- ret = 1;
- break;
- case _PC_NO_TRUNC:
- case _PC_VDISABLE:
- ret = 0;
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
-}
-
-asmlinkage int solaris_pathconf(u32 path, int name)
-{
- return solaris_fpathconf(0, name);
-}
-
-/* solaris_llseek returns long long - quite difficult */
-asmlinkage long solaris_llseek(struct pt_regs *regs, u32 off_hi, u32 off_lo, int whence)
-{
- int (*sys_llseek)(unsigned int, unsigned long, unsigned long, loff_t __user *, unsigned int) =
- (int (*)(unsigned int, unsigned long, unsigned long, loff_t __user *, unsigned int))SYS(_llseek);
- int ret;
- mm_segment_t old_fs = get_fs();
- loff_t retval;
-
- set_fs(KERNEL_DS);
- ret = sys_llseek((unsigned int)regs->u_regs[UREG_I0], off_hi, off_lo, &retval, whence);
- set_fs(old_fs);
- if (ret < 0) return ret;
- regs->u_regs[UREG_I1] = (u32)retval;
- return (retval >> 32);
-}
-
-/* Have to mask out all but lower 3 bits */
-asmlinkage int solaris_access(u32 filename, long mode)
-{
- int (*sys_access)(const char __user *, int) =
- (int (*)(const char __user *, int))SYS(access);
-
- return sys_access(A(filename), mode & 7);
-}
projects / linux-drm-fsl-dcu.git / blobdiff