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-rw-r--r--arch/sparc64/solaris/fs.c739
1 files changed, 739 insertions, 0 deletions
diff --git a/arch/sparc64/solaris/fs.c b/arch/sparc64/solaris/fs.c
new file mode 100644
index 000000000000..d7c99fa89661
--- /dev/null
+++ b/arch/sparc64/solaris/fs.c
@@ -0,0 +1,739 @@
+/* $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/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)
+{
+ if (kbuf->size > MAX_NON_LFS ||
+ !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;
+}
+
+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_sb, &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_sb, &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.dentry->d_inode;
+ error = report_statvfs(nd.mnt, inode, buf);
+ path_release(&nd);
+ }
+ 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_vfsmnt, file->f_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.dentry->d_inode;
+ error = report_statvfs64(nd.mnt, inode, buf);
+ path_release(&nd);
+ }
+ 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_vfsmnt, file->f_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 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);
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.