| /* |
| * sys_ppc32.c: Conversion between 32bit and 64bit native syscalls. |
| * |
| * Copyright (C) 2001 IBM |
| * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) |
| * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) |
| * |
| * These routines maintain argument size conversion between 32bit and 64bit |
| * environment. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| |
| #include <asm/ptrace.h> |
| #include <linux/config.h> |
| #include <linux/kernel.h> |
| #include <linux/sched.h> |
| #include <linux/fs.h> |
| #include <linux/mm.h> |
| #include <linux/file.h> |
| #include <linux/signal.h> |
| #include <linux/utime.h> |
| #include <linux/resource.h> |
| #include <linux/times.h> |
| #include <linux/utsname.h> |
| #include <linux/timex.h> |
| #include <linux/smp.h> |
| #include <linux/smp_lock.h> |
| #include <linux/sem.h> |
| #include <linux/msg.h> |
| #include <linux/shm.h> |
| #include <linux/slab.h> |
| #include <linux/uio.h> |
| #include <linux/nfs_fs.h> |
| #include <linux/smb_fs.h> |
| #include <linux/smb_mount.h> |
| #include <linux/ncp_fs.h> |
| #include <linux/quota.h> |
| #include <linux/quotacompat.h> |
| #include <linux/module.h> |
| #include <linux/sunrpc/svc.h> |
| #include <linux/nfsd/nfsd.h> |
| #include <linux/nfsd/cache.h> |
| #include <linux/nfsd/xdr.h> |
| #include <linux/nfsd/syscall.h> |
| #include <linux/poll.h> |
| #include <linux/personality.h> |
| #include <linux/stat.h> |
| #include <linux/filter.h> |
| #include <linux/highmem.h> |
| #include <linux/highuid.h> |
| #include <linux/mman.h> |
| #include <linux/sysctl.h> |
| |
| #include <asm/types.h> |
| #include <asm/ipc.h> |
| #include <asm/uaccess.h> |
| |
| #include <asm/semaphore.h> |
| |
| #include <net/scm.h> |
| #include <linux/elf.h> |
| #include <asm/ppcdebug.h> |
| #include <asm/time.h> |
| #include <asm/ppc32.h> |
| |
| extern unsigned long wall_jiffies; |
| #define USEC_PER_SEC (1000000) |
| |
| |
| extern asmlinkage long sys_utime(char * filename, struct utimbuf * times); |
| |
| struct utimbuf32 { |
| __kernel_time_t32 actime, modtime; |
| }; |
| |
| asmlinkage long sys32_utime(char * filename, struct utimbuf32 *times) |
| { |
| struct utimbuf t; |
| mm_segment_t old_fs; |
| int ret; |
| char *filenam; |
| |
| PPCDBG(PPCDBG_SYS32NI, "sys32_utime - running - filename=%s, times=%p - pid=%ld, comm=%s \n", filename, times, current->pid, current->comm); |
| |
| if (!times) |
| return sys_utime(filename, NULL); |
| if (get_user(t.actime, ×->actime) || __get_user(t.modtime, ×->modtime)) |
| return -EFAULT; |
| filenam = getname(filename); |
| |
| ret = PTR_ERR(filenam); |
| if (!IS_ERR(filenam)) { |
| old_fs = get_fs(); |
| set_fs (KERNEL_DS); |
| ret = sys_utime(filenam, &t); |
| set_fs (old_fs); |
| putname (filenam); |
| } |
| |
| return ret; |
| } |
| |
| asmlinkage int sys32_ustat(__kernel_dev_t32 dev, struct ustat32 * ubuf) |
| { |
| |
| struct super_block *s; |
| struct ustat32 tmp; |
| struct statfs sbuf; |
| int err = -EINVAL; |
| |
| s = get_super(to_kdev_t(dev)); |
| if (s == NULL) |
| goto out; |
| err = vfs_statfs(s, &sbuf); |
| drop_super(s); |
| if (err) |
| goto out; |
| |
| memset(&tmp,0,sizeof(struct ustat)); |
| tmp.f_tfree = sbuf.f_bfree; |
| tmp.f_tinode = sbuf.f_ffree; |
| |
| err = copy_to_user(ubuf, &tmp, sizeof(struct ustat32)) ? -EFAULT : 0; |
| |
| out: |
| return err; |
| |
| } |
| |
| struct iovec32 { u32 iov_base; __kernel_size_t32 iov_len; }; |
| |
| typedef ssize_t (*IO_fn_t)(struct file *, char *, size_t, loff_t *); |
| typedef __kernel_ssize_t32 ssize_t32; |
| |
| static long do_readv_writev32(int type, struct file *file, |
| const struct iovec32 *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 (count > UIO_MAXIOV) |
| return -EINVAL; |
| if(verify_area(VERIFY_READ, vector, sizeof(struct iovec32)*count)) |
| return -EFAULT; |
| 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++; |
| if ((len < 0) || (tot_len != (ssize_t32)tot_len)) { |
| if (iov != iovstack) |
| kfree(iov); |
| return -EINVAL; |
| } |
| i--; |
| } |
| |
| /* VERIFY_WRITE actually means a read, as we write to user space */ |
| retval = rw_verify_area((type == VERIFY_WRITE ? READ : WRITE), |
| 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 |
| */ |
| if (inode->i_sock) { |
| int err; |
| err = sock_readv_writev(type, inode, file, iov, count, tot_len); |
| if (iov != iovstack) |
| kfree(iov); |
| return err; |
| } |
| |
| 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(u32 fd, struct iovec32 *vector, u32 count) |
| { |
| struct file *file; |
| long ret = -EBADF; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_readv - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| 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: |
| PPCDBG(PPCDBG_SYS32, "sys32_readv - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| return ret; |
| } |
| |
| asmlinkage long sys32_writev(u32 fd, struct iovec32 *vector, u32 count) |
| { |
| struct file *file; |
| int ret = -EBADF; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_writev - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| 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: |
| PPCDBG(PPCDBG_SYS32, "sys32_writev - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| return ret; |
| } |
| |
| |
| |
| static inline int get_flock(struct flock *kfl, struct flock32 *ufl) |
| { |
| int err; |
| |
| err = get_user(kfl->l_type, &ufl->l_type); |
| err |= __get_user(kfl->l_whence, &ufl->l_whence); |
| err |= __get_user(kfl->l_start, &ufl->l_start); |
| err |= __get_user(kfl->l_len, &ufl->l_len); |
| err |= __get_user(kfl->l_pid, &ufl->l_pid); |
| return err; |
| } |
| |
| static inline int put_flock(struct flock *kfl, struct flock32 *ufl) |
| { |
| int err; |
| |
| err = __put_user(kfl->l_type, &ufl->l_type); |
| err |= __put_user(kfl->l_whence, &ufl->l_whence); |
| err |= __put_user(kfl->l_start, &ufl->l_start); |
| err |= __put_user(kfl->l_len, &ufl->l_len); |
| err |= __put_user(kfl->l_pid, &ufl->l_pid); |
| return err; |
| } |
| |
| extern asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); |
| asmlinkage long sys32_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg) |
| { |
| switch (cmd) { |
| case F_GETLK: |
| case F_SETLK: |
| case F_SETLKW: |
| { |
| struct flock f; |
| mm_segment_t old_fs; |
| long ret; |
| |
| if(get_flock(&f, (struct flock32 *)arg)) |
| return -EFAULT; |
| old_fs = get_fs(); set_fs (KERNEL_DS); |
| ret = sys_fcntl(fd, cmd, (unsigned long)&f); |
| set_fs (old_fs); |
| if(put_flock(&f, (struct flock32 *)arg)) |
| return -EFAULT; |
| return ret; |
| } |
| default: |
| return sys_fcntl(fd, cmd, (unsigned long)arg); |
| } |
| } |
| |
| struct ncp_mount_data32 { |
| int version; |
| unsigned int ncp_fd; |
| __kernel_uid_t32 mounted_uid; |
| __kernel_pid_t32 wdog_pid; |
| unsigned char mounted_vol[NCP_VOLNAME_LEN + 1]; |
| unsigned int time_out; |
| unsigned int retry_count; |
| unsigned int flags; |
| __kernel_uid_t32 uid; |
| __kernel_gid_t32 gid; |
| __kernel_mode_t32 file_mode; |
| __kernel_mode_t32 dir_mode; |
| }; |
| |
| static void *do_ncp_super_data_conv(void *raw_data) |
| { |
| struct ncp_mount_data *n = (struct ncp_mount_data *)raw_data; |
| struct ncp_mount_data32 *n32 = (struct ncp_mount_data32 *)raw_data; |
| |
| n->dir_mode = n32->dir_mode; |
| n->file_mode = n32->file_mode; |
| n->gid = n32->gid; |
| n->uid = n32->uid; |
| memmove (n->mounted_vol, n32->mounted_vol, (sizeof (n32->mounted_vol) + 3 * sizeof (unsigned int))); |
| n->wdog_pid = n32->wdog_pid; |
| n->mounted_uid = n32->mounted_uid; |
| return raw_data; |
| } |
| |
| struct smb_mount_data32 { |
| int version; |
| __kernel_uid_t32 mounted_uid; |
| __kernel_uid_t32 uid; |
| __kernel_gid_t32 gid; |
| __kernel_mode_t32 file_mode; |
| __kernel_mode_t32 dir_mode; |
| }; |
| |
| static void *do_smb_super_data_conv(void *raw_data) |
| { |
| struct smb_mount_data *s = (struct smb_mount_data *)raw_data; |
| struct smb_mount_data32 *s32 = (struct smb_mount_data32 *)raw_data; |
| |
| s->version = s32->version; |
| s->mounted_uid = s32->mounted_uid; |
| s->uid = s32->uid; |
| s->gid = s32->gid; |
| s->file_mode = s32->file_mode; |
| s->dir_mode = s32->dir_mode; |
| return raw_data; |
| } |
| |
| static int copy_mount_stuff_to_kernel(const void *user, unsigned long *kernel) |
| { |
| int i; |
| unsigned long page; |
| struct vm_area_struct *vma; |
| |
| *kernel = 0; |
| if(!user) |
| return 0; |
| vma = find_vma(current->mm, (unsigned long)user); |
| if(!vma || (unsigned long)user < vma->vm_start) |
| return -EFAULT; |
| if(!(vma->vm_flags & VM_READ)) |
| return -EFAULT; |
| i = vma->vm_end - (unsigned long) user; |
| if(PAGE_SIZE <= (unsigned long) i) |
| i = PAGE_SIZE - 1; |
| if(!(page = __get_free_page(GFP_KERNEL))) |
| return -ENOMEM; |
| if(copy_from_user((void *) page, user, i)) { |
| free_page(page); |
| return -EFAULT; |
| } |
| *kernel = page; |
| return 0; |
| } |
| |
| #define SMBFS_NAME "smbfs" |
| #define NCPFS_NAME "ncpfs" |
| |
| asmlinkage long sys32_mount(char *dev_name, char *dir_name, char *type, unsigned long new_flags, u32 data) |
| { |
| unsigned long type_page = 0; |
| unsigned long data_page = 0; |
| unsigned long dev_page = 0; |
| unsigned long dir_page = 0; |
| int err, is_smb, is_ncp; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_mount - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| is_smb = is_ncp = 0; |
| |
| err = copy_mount_stuff_to_kernel((const void *)type, &type_page); |
| if (err) |
| goto out; |
| |
| if (!type_page) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| is_smb = !strcmp((char *)type_page, SMBFS_NAME); |
| is_ncp = !strcmp((char *)type_page, NCPFS_NAME); |
| |
| err = copy_mount_stuff_to_kernel((const void *)AA(data), &data_page); |
| if (err) |
| goto type_out; |
| |
| err = copy_mount_stuff_to_kernel(dev_name, &dev_page); |
| if (err) |
| goto data_out; |
| |
| err = copy_mount_stuff_to_kernel(dir_name, &dir_page); |
| if (err) |
| goto dev_out; |
| |
| if (!is_smb && !is_ncp) { |
| lock_kernel(); |
| err = do_mount((char*)dev_page, (char*)dir_page, |
| (char*)type_page, new_flags, (char*)data_page); |
| unlock_kernel(); |
| } else { |
| if (is_ncp) |
| do_ncp_super_data_conv((void *)data_page); |
| else |
| do_smb_super_data_conv((void *)data_page); |
| |
| lock_kernel(); |
| err = do_mount((char*)dev_page, (char*)dir_page, |
| (char*)type_page, new_flags, (char*)data_page); |
| unlock_kernel(); |
| } |
| free_page(dir_page); |
| |
| dev_out: |
| free_page(dev_page); |
| |
| data_out: |
| free_page(data_page); |
| |
| type_out: |
| free_page(type_page); |
| |
| out: |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_mount - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| return err; |
| } |
| |
| struct user_dqblk32 { |
| __u32 dqb_bhardlimit; |
| __u32 dqb_bsoftlimit; |
| __u32 dqb_curblocks; |
| __u32 dqb_ihardlimit; |
| __u32 dqb_isoftlimit; |
| __u32 dqb_curinodes; |
| __kernel_time_t32 dqb_btime; |
| __kernel_time_t32 dqb_itime; |
| }; |
| |
| |
| extern asmlinkage long sys_quotactl(unsigned int cmd, const char *special, qid_t id, caddr_t addr); |
| |
| /* Note: it is necessary to treat cmd and id as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_quotactl(u32 cmd_parm, const char *special, u32 id_parm, caddr_t addr) |
| { |
| unsigned int cmd = cmd_parm; |
| qid_t id = (qid_t)id_parm; |
| unsigned int cmds = cmd >> SUBCMDSHIFT; |
| int err; |
| struct v1c_mem_dqblk d; |
| mm_segment_t old_fs; |
| char *spec; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_quotactl - entered - pid=%ld current=%lx comm=%s \n", |
| current->pid, current, current->comm); |
| |
| switch (cmds) { |
| case Q_V1_GETQUOTA: |
| break; |
| case Q_V1_SETQUOTA: |
| case Q_V1_SETUSE: |
| case Q_V1_SETQLIM: |
| if (copy_from_user(&d, addr, sizeof(struct user_dqblk32))) |
| return -EFAULT; |
| d.dqb_itime = ((struct user_dqblk32 *)&d)->dqb_itime; |
| d.dqb_btime = ((struct user_dqblk32 *)&d)->dqb_btime; |
| break; |
| default: |
| return sys_quotactl(cmd, special, id, addr); |
| } |
| spec = getname(special); |
| err = PTR_ERR(spec); |
| if (IS_ERR(spec)) |
| return err; |
| old_fs = get_fs(); |
| set_fs (KERNEL_DS); |
| err = sys_quotactl(cmd, (const char *)spec, id, (caddr_t)&d); |
| set_fs (old_fs); |
| putname (spec); |
| if (cmds == Q_V1_GETQUOTA) { |
| __kernel_time_t b = d.dqb_btime, i = d.dqb_itime; |
| ((struct user_dqblk32 *)&d)->dqb_itime = i; |
| ((struct user_dqblk32 *)&d)->dqb_btime = b; |
| if (copy_to_user(addr, &d, sizeof(struct user_dqblk32))) |
| return -EFAULT; |
| } |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_quotactl - exited - pid=%ld current=%lx comm=%s \n", |
| current->pid, current, current->comm); |
| |
| return err; |
| } |
| |
| |
| |
| /* readdir & getdents */ |
| #define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de))) |
| #define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1)) |
| |
| struct old_linux_dirent32 { |
| u32 d_ino; |
| u32 d_offset; |
| unsigned short d_namlen; |
| char d_name[1]; |
| }; |
| |
| struct readdir_callback32 { |
| struct old_linux_dirent32 * dirent; |
| int count; |
| }; |
| |
| static int fillonedir(void * __buf, const char * name, int namlen, |
| off_t offset, ino_t ino, unsigned int d_type) |
| { |
| struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf; |
| struct old_linux_dirent32 * dirent; |
| |
| if (buf->count) |
| return -EINVAL; |
| buf->count++; |
| dirent = buf->dirent; |
| put_user(ino, &dirent->d_ino); |
| put_user(offset, &dirent->d_offset); |
| put_user(namlen, &dirent->d_namlen); |
| copy_to_user(dirent->d_name, name, namlen); |
| put_user(0, dirent->d_name + namlen); |
| return 0; |
| } |
| |
| asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 *dirent, unsigned int count) |
| { |
| int error = -EBADF; |
| struct file * file; |
| struct readdir_callback32 buf; |
| |
| file = fget(fd); |
| if (!file) |
| goto out; |
| |
| buf.count = 0; |
| buf.dirent = dirent; |
| |
| error = vfs_readdir(file, (filldir_t)fillonedir, &buf); |
| if (error < 0) |
| goto out_putf; |
| error = buf.count; |
| |
| out_putf: |
| fput(file); |
| out: |
| return error; |
| } |
| |
| #if 0 |
| struct linux_dirent32 { |
| u32 d_ino; |
| u32 d_off; |
| unsigned short d_reclen; |
| char d_name[1]; |
| }; |
| #else |
| struct linux_dirent32 { |
| u32 d_ino; |
| u32 d_off; |
| unsigned short d_reclen; |
| /* unsigned char d_type; */ |
| char d_name[256]; |
| }; |
| #endif |
| |
| struct getdents_callback32 { |
| struct linux_dirent32 * current_dir; |
| struct linux_dirent32 * previous; |
| int count; |
| int error; |
| }; |
| |
| static int |
| filldir(void * __buf, const char * name, int namlen, off_t offset, ino_t ino, |
| unsigned int d_type) |
| { |
| struct linux_dirent32 * dirent; |
| struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf; |
| int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1); |
| |
| buf->error = -EINVAL; /* only used if we fail.. */ |
| if (reclen > buf->count) |
| return -EINVAL; |
| dirent = buf->previous; |
| if (dirent) |
| put_user(offset, &dirent->d_off); |
| dirent = buf->current_dir; |
| buf->previous = dirent; |
| put_user(ino, &dirent->d_ino); |
| put_user(reclen, &dirent->d_reclen); |
| copy_to_user(dirent->d_name, name, namlen); |
| put_user(0, dirent->d_name + namlen); |
| ((char *) dirent) += reclen; |
| buf->current_dir = dirent; |
| buf->count -= reclen; |
| return 0; |
| } |
| |
| asmlinkage long sys32_getdents(unsigned int fd, struct linux_dirent32 *dirent, unsigned int count) |
| { |
| struct file * file; |
| struct linux_dirent32 * lastdirent; |
| struct getdents_callback32 buf; |
| int error = -EBADF; |
| |
| PPCDBG(PPCDBG_SYS32NI, "sys32_getdents - running - fd=%x, pid=%ld, comm=%s \n", fd, current->pid, current->comm); |
| |
| file = fget(fd); |
| if (!file) |
| goto out; |
| |
| buf.current_dir = dirent; |
| buf.previous = NULL; |
| buf.count = count; |
| buf.error = 0; |
| |
| error = vfs_readdir(file, (filldir_t)filldir, &buf); |
| if (error < 0) |
| goto out_putf; |
| lastdirent = buf.previous; |
| error = buf.error; |
| if(lastdirent) { |
| put_user(file->f_pos, &lastdirent->d_off); |
| error = count - buf.count; |
| } |
| out_putf: |
| fput(file); |
| |
| out: |
| return error; |
| } |
| /* end of readdir & getdents */ |
| |
| |
| |
| /* 32-bit timeval and related flotsam. */ |
| |
| struct timeval32 |
| { |
| int tv_sec, tv_usec; |
| }; |
| |
| struct itimerval32 |
| { |
| struct timeval32 it_interval; |
| struct timeval32 it_value; |
| }; |
| |
| |
| |
| |
| /* |
| * 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); |
| } |
| |
| |
| |
| #define MAX_SELECT_SECONDS ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1) |
| |
| asmlinkage long sys32_select(int n, u32 *inp, u32 *outp, u32 *exp, u32 tvp_x) |
| { |
| fd_set_bits fds; |
| struct timeval32 *tvp = (struct timeval32 *)AA(tvp_x); |
| char *bits; |
| unsigned long nn; |
| long timeout; |
| int ret, size; |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_select - entered - n=%x, inp=%p, outp=%p - pid=%ld comm=%s \n", n, inp, outp, current->pid, current->comm); |
| |
| 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: |
| PPCDBG(PPCDBG_SYS32X, "sys32_select - exited - pid=%ld, comm=%s \n", current->pid, current->comm); |
| return ret; |
| } |
| |
| /* Note: it is necessary to treat n as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage int ppc32_select(u32 n, u32* inp, u32* outp, u32* exp, u32 tvp_x) |
| { |
| return sys32_select((int)n, inp, outp, exp, tvp_x); |
| } |
| |
| static int cp_new_stat32(struct inode *inode, struct stat32 *statbuf) |
| { |
| unsigned long ino, blksize, blocks; |
| kdev_t dev, rdev; |
| umode_t mode; |
| nlink_t nlink; |
| uid_t uid; |
| gid_t gid; |
| off_t size; |
| time_t atime, mtime, ctime; |
| int err; |
| |
| /* Stream the loads of inode data into the load buffer, |
| * then we push it all into the store buffer below. This |
| * should give optimal cache performance. |
| */ |
| ino = inode->i_ino; |
| dev = inode->i_dev; |
| mode = inode->i_mode; |
| nlink = inode->i_nlink; |
| uid = inode->i_uid; |
| gid = inode->i_gid; |
| rdev = inode->i_rdev; |
| size = inode->i_size; |
| atime = inode->i_atime; |
| mtime = inode->i_mtime; |
| ctime = inode->i_ctime; |
| blksize = inode->i_blksize; |
| blocks = inode->i_blocks; |
| |
| err = put_user(kdev_t_to_nr(dev), &statbuf->st_dev); |
| err |= put_user(ino, &statbuf->st_ino); |
| err |= put_user(mode, &statbuf->st_mode); |
| err |= put_user(nlink, &statbuf->st_nlink); |
| err |= put_user(uid, &statbuf->st_uid); |
| err |= put_user(gid, &statbuf->st_gid); |
| err |= put_user(kdev_t_to_nr(rdev), &statbuf->st_rdev); |
| err |= put_user(size, &statbuf->st_size); |
| err |= put_user(atime, &statbuf->st_atime); |
| err |= put_user(0, &statbuf->__unused1); |
| err |= put_user(mtime, &statbuf->st_mtime); |
| err |= put_user(0, &statbuf->__unused2); |
| err |= put_user(ctime, &statbuf->st_ctime); |
| err |= put_user(0, &statbuf->__unused3); |
| if (blksize) { |
| err |= put_user(blksize, &statbuf->st_blksize); |
| err |= put_user(blocks, &statbuf->st_blocks); |
| } else { |
| unsigned int tmp_blocks; |
| |
| #define D_B 7 |
| #define I_B (BLOCK_SIZE / sizeof(unsigned short)) |
| tmp_blocks = (size + BLOCK_SIZE - 1) / BLOCK_SIZE; |
| if (tmp_blocks > D_B) { |
| unsigned int indirect; |
| |
| indirect = (tmp_blocks - D_B + I_B - 1) / I_B; |
| tmp_blocks += indirect; |
| if (indirect > 1) { |
| indirect = (indirect - 1 + I_B - 1) / I_B; |
| tmp_blocks += indirect; |
| if (indirect > 1) |
| tmp_blocks++; |
| } |
| } |
| err |= put_user(BLOCK_SIZE, &statbuf->st_blksize); |
| err |= put_user((BLOCK_SIZE / 512) * tmp_blocks, &statbuf->st_blocks); |
| #undef D_B |
| #undef I_B |
| } |
| err |= put_user(0, &statbuf->__unused4[0]); |
| err |= put_user(0, &statbuf->__unused4[1]); |
| |
| return err; |
| } |
| |
| static __inline__ int |
| do_revalidate(struct dentry *dentry) |
| { |
| struct inode * inode = dentry->d_inode; |
| if (inode->i_op && inode->i_op->revalidate) |
| return inode->i_op->revalidate(dentry); |
| return 0; |
| } |
| |
| asmlinkage long sys32_newstat(char* filename, struct stat32* statbuf) |
| { |
| struct nameidata nd; |
| int error; |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_newstat - running - filename=%s, statbuf=%p, pid=%ld, comm=%s\n", filename, statbuf, current->pid, current->comm); |
| |
| error = user_path_walk(filename, &nd); |
| if (!error) { |
| error = do_revalidate(nd.dentry); |
| if (!error) |
| error = cp_new_stat32(nd.dentry->d_inode, statbuf); |
| path_release(&nd); |
| } |
| return error; |
| } |
| |
| asmlinkage long sys32_newlstat(char * filename, struct stat32 *statbuf) |
| { |
| struct nameidata nd; |
| int error; |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_newlstat - running - fn=%s, pid=%ld, comm=%s\n", filename, current->pid, current->comm); |
| |
| error = user_path_walk_link(filename, &nd); |
| if (!error) { |
| error = do_revalidate(nd.dentry); |
| if (!error) |
| error = cp_new_stat32(nd.dentry->d_inode, statbuf); |
| |
| path_release(&nd); |
| } |
| return error; |
| } |
| |
| asmlinkage long sys32_newfstat(unsigned int fd, struct stat32 *statbuf) |
| { |
| struct file *f; |
| int err = -EBADF; |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_newfstat - running - fd=%x, pid=%ld, comm=%s\n", fd, current->pid, current->comm); |
| |
| f = fget(fd); |
| if (f) { |
| struct dentry * dentry = f->f_dentry; |
| |
| err = do_revalidate(dentry); |
| if (!err) |
| err = cp_new_stat32(dentry->d_inode, statbuf); |
| fput(f); |
| } |
| return err; |
| } |
| |
| static inline int put_statfs (struct statfs32 *ubuf, struct statfs *kbuf) |
| { |
| struct statfs32 tmp; |
| memset(&tmp, 0, sizeof(tmp)); |
| |
| tmp.f_type = kbuf->f_type; |
| tmp.f_bsize = kbuf->f_bsize; |
| tmp.f_blocks = kbuf->f_blocks; |
| tmp.f_bfree = kbuf->f_bfree; |
| tmp.f_bavail = kbuf->f_bavail; |
| tmp.f_files = kbuf->f_files; |
| tmp.f_ffree = kbuf->f_ffree; |
| tmp.f_namelen = kbuf->f_namelen; |
| tmp.f_fsid.val[0] = kbuf->f_fsid.val[0]; |
| tmp.f_fsid.val[1] = kbuf->f_fsid.val[1]; |
| |
| return copy_to_user(ubuf, &tmp, sizeof(tmp)) ? -EFAULT : 0; |
| } |
| |
| extern asmlinkage int sys_statfs(const char * path, struct statfs * buf); |
| |
| asmlinkage long sys32_statfs(const char * path, struct statfs32 *buf) |
| { |
| int ret; |
| struct statfs s; |
| mm_segment_t old_fs = get_fs(); |
| char *pth; |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_statfs - entered - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| |
| pth = getname (path); |
| ret = PTR_ERR(pth); |
| if (!IS_ERR(pth)) { |
| set_fs (KERNEL_DS); |
| ret = sys_statfs((const char *)pth, &s); |
| set_fs (old_fs); |
| putname (pth); |
| if (put_statfs(buf, &s)) |
| return -EFAULT; |
| } |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_statfs - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| return ret; |
| } |
| |
| extern asmlinkage long sys_fstatfs(unsigned int fd, struct statfs * buf); |
| |
| asmlinkage long sys32_fstatfs(unsigned int fd, struct statfs32 *buf) |
| { |
| int ret; |
| struct statfs s; |
| mm_segment_t old_fs = get_fs(); |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_fstatfs - entered - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| |
| set_fs (KERNEL_DS); |
| ret = sys_fstatfs(fd, &s); |
| set_fs (old_fs); |
| if (put_statfs(buf, &s)) |
| return -EFAULT; |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_fstatfs - exited - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| |
| return ret; |
| } |
| |
| |
| |
| extern asmlinkage long sys_sysfs(int option, unsigned long arg1, unsigned long arg2); |
| |
| /* Note: it is necessary to treat option as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_sysfs(u32 option, u32 arg1, u32 arg2) |
| { |
| PPCDBG(PPCDBG_SYS32, "sys32_sysfs - running - pid=%ld, comm=%s\n", current->pid, current->comm); |
| return sys_sysfs((int)option, arg1, arg2); |
| } |
| |
| |
| |
| |
| extern unsigned long do_mremap(unsigned long addr, |
| unsigned long old_len, unsigned long new_len, |
| unsigned long flags, unsigned long new_addr); |
| |
| asmlinkage unsigned long sys32_mremap(unsigned long addr, unsigned long old_len, unsigned long new_len, |
| unsigned long flags, u32 __new_addr) |
| { |
| unsigned long ret = -EINVAL; |
| unsigned long new_addr = AA(__new_addr); |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_mremap - entered - pid=%ld current=%lx comm=%s\n", |
| current->pid, current, current->comm); |
| |
| |
| if (old_len > 0xf0000000UL || new_len > 0xf0000000UL) |
| goto out; |
| if (addr > 0xf0000000UL - old_len) |
| goto out; |
| down_write(¤t->mm->mmap_sem); |
| if (flags & MREMAP_FIXED) { |
| if (new_addr > 0xf0000000UL - new_len) |
| goto out_sem; |
| } else if (addr > 0xf0000000UL - new_len) { |
| ret = -ENOMEM; |
| if (!(flags & MREMAP_MAYMOVE)) |
| goto out_sem; |
| new_addr = get_unmapped_area (NULL, addr, new_len, 0, 0); |
| if (!new_addr) |
| goto out_sem; |
| flags |= MREMAP_FIXED; |
| } |
| ret = do_mremap(addr, old_len, new_len, flags, new_addr); |
| out_sem: |
| up_write(¤t->mm->mmap_sem); |
| out: |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_mremap - exited - pid=%ld current=%lx comm=%s\n", |
| current->pid, current, current->comm); |
| |
| return ret; |
| } |
| |
| |
| |
| /* Handle adjtimex compatability. */ |
| struct timex32 { |
| u32 modes; |
| s32 offset, freq, maxerror, esterror; |
| s32 status, constant, precision, tolerance; |
| struct timeval32 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 *); |
| extern void ppc_adjtimex(void); |
| |
| asmlinkage long sys32_adjtimex(struct timex32 *utp) |
| { |
| struct timex txc; |
| int ret; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_adjtimex - running - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| 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); |
| |
| /* adjust the conversion of TB to time of day to track adjtimex */ |
| ppc_adjtimex(); |
| |
| 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; |
| } |
| |
| |
| |
| #ifdef CONFIG_MODULES |
| |
| extern asmlinkage unsigned long sys_create_module(const char *name_user, size_t size); |
| |
| asmlinkage unsigned long sys32_create_module(const char *name_user, __kernel_size_t32 size) |
| { |
| |
| PPCDBG(PPCDBG_SYS32M, "sys32_create_module - running - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| |
| return sys_create_module(name_user, (size_t)size); |
| } |
| |
| |
| |
| extern asmlinkage long sys_init_module(const char *name_user, struct module *mod_user); |
| |
| asmlinkage long sys32_init_module(const char *name_user, struct module *mod_user) |
| { |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_init_module - running - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| |
| return sys_init_module(name_user, mod_user); |
| } |
| |
| |
| |
| extern asmlinkage long sys_delete_module(const char *name_user); |
| |
| asmlinkage long sys32_delete_module(const char *name_user) |
| { |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_delete_module - running - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| |
| return sys_delete_module(name_user); |
| } |
| |
| |
| |
| struct module_info32 { |
| u32 addr; |
| u32 size; |
| u32 flags; |
| s32 usecount; |
| }; |
| |
| /* Query various bits about modules. */ |
| |
| static inline long |
| get_mod_name(const char *user_name, char **buf) |
| { |
| unsigned long page; |
| long retval; |
| |
| if ((unsigned long)user_name >= TASK_SIZE |
| && !segment_eq(get_fs (), KERNEL_DS)) |
| return -EFAULT; |
| |
| page = __get_free_page(GFP_KERNEL); |
| if (!page) |
| return -ENOMEM; |
| |
| retval = strncpy_from_user((char *)page, user_name, PAGE_SIZE); |
| if (retval > 0) { |
| if (retval < PAGE_SIZE) { |
| *buf = (char *)page; |
| return retval; |
| } |
| retval = -ENAMETOOLONG; |
| } else if (!retval) |
| retval = -EINVAL; |
| |
| free_page(page); |
| return retval; |
| } |
| |
| static inline void |
| put_mod_name(char *buf) |
| { |
| free_page((unsigned long)buf); |
| } |
| |
| static __inline__ struct module *find_module(const char *name) |
| { |
| struct module *mod; |
| |
| for (mod = module_list; mod ; mod = mod->next) { |
| if (mod->flags & MOD_DELETED) |
| continue; |
| if (!strcmp(mod->name, name)) |
| break; |
| } |
| |
| return mod; |
| } |
| |
| static int |
| qm_modules(char *buf, size_t bufsize, __kernel_size_t32 *ret) |
| { |
| struct module *mod; |
| size_t nmod, space, len; |
| |
| nmod = space = 0; |
| |
| for (mod = module_list; mod->next != NULL; mod = mod->next, ++nmod) { |
| len = strlen(mod->name)+1; |
| if (len > bufsize) |
| goto calc_space_needed; |
| if (copy_to_user(buf, mod->name, len)) |
| return -EFAULT; |
| buf += len; |
| bufsize -= len; |
| space += len; |
| } |
| |
| if (put_user(nmod, ret)) |
| return -EFAULT; |
| else |
| return 0; |
| |
| calc_space_needed: |
| space += len; |
| while ((mod = mod->next)->next != NULL) |
| space += strlen(mod->name)+1; |
| |
| if (put_user(space, ret)) |
| return -EFAULT; |
| else |
| return -ENOSPC; |
| } |
| |
| static int |
| qm_deps(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret) |
| { |
| size_t i, space, len; |
| |
| if (mod->next == NULL) |
| return -EINVAL; |
| if (!MOD_CAN_QUERY(mod)) |
| return put_user(0, ret); |
| |
| space = 0; |
| for (i = 0; i < mod->ndeps; ++i) { |
| const char *dep_name = mod->deps[i].dep->name; |
| |
| len = strlen(dep_name)+1; |
| if (len > bufsize) |
| goto calc_space_needed; |
| if (copy_to_user(buf, dep_name, len)) |
| return -EFAULT; |
| buf += len; |
| bufsize -= len; |
| space += len; |
| } |
| |
| return put_user(i, ret); |
| |
| calc_space_needed: |
| space += len; |
| while (++i < mod->ndeps) |
| space += strlen(mod->deps[i].dep->name)+1; |
| |
| if (put_user(space, ret)) |
| return -EFAULT; |
| else |
| return -ENOSPC; |
| } |
| |
| static int |
| qm_refs(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret) |
| { |
| size_t nrefs, space, len; |
| struct module_ref *ref; |
| |
| if (mod->next == NULL) |
| return -EINVAL; |
| if (!MOD_CAN_QUERY(mod)) |
| if (put_user(0, ret)) |
| return -EFAULT; |
| else |
| return 0; |
| |
| space = 0; |
| for (nrefs = 0, ref = mod->refs; ref ; ++nrefs, ref = ref->next_ref) { |
| const char *ref_name = ref->ref->name; |
| |
| len = strlen(ref_name)+1; |
| if (len > bufsize) |
| goto calc_space_needed; |
| if (copy_to_user(buf, ref_name, len)) |
| return -EFAULT; |
| buf += len; |
| bufsize -= len; |
| space += len; |
| } |
| |
| if (put_user(nrefs, ret)) |
| return -EFAULT; |
| else |
| return 0; |
| |
| calc_space_needed: |
| space += len; |
| while ((ref = ref->next_ref) != NULL) |
| space += strlen(ref->ref->name)+1; |
| |
| if (put_user(space, ret)) |
| return -EFAULT; |
| else |
| return -ENOSPC; |
| } |
| |
| static inline int |
| qm_symbols(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret) |
| { |
| size_t i, space, len; |
| struct module_symbol *s; |
| char *strings; |
| unsigned *vals; |
| |
| if (!MOD_CAN_QUERY(mod)) |
| if (put_user(0, ret)) |
| return -EFAULT; |
| else |
| return 0; |
| |
| space = mod->nsyms * 2*sizeof(u32); |
| |
| i = len = 0; |
| s = mod->syms; |
| |
| if (space > bufsize) |
| goto calc_space_needed; |
| |
| if (!access_ok(VERIFY_WRITE, buf, space)) |
| return -EFAULT; |
| |
| bufsize -= space; |
| vals = (unsigned *)buf; |
| strings = buf+space; |
| |
| for (; i < mod->nsyms ; ++i, ++s, vals += 2) { |
| len = strlen(s->name)+1; |
| if (len > bufsize) |
| goto calc_space_needed; |
| |
| if (copy_to_user(strings, s->name, len) |
| || __put_user(s->value, vals+0) |
| || __put_user(space, vals+1)) |
| return -EFAULT; |
| |
| strings += len; |
| bufsize -= len; |
| space += len; |
| } |
| |
| if (put_user(i, ret)) |
| return -EFAULT; |
| else |
| return 0; |
| |
| calc_space_needed: |
| for (; i < mod->nsyms; ++i, ++s) |
| space += strlen(s->name)+1; |
| |
| if (put_user(space, ret)) |
| return -EFAULT; |
| else |
| return -ENOSPC; |
| } |
| |
| static inline int |
| qm_info(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret) |
| { |
| int error = 0; |
| |
| if (mod->next == NULL) |
| return -EINVAL; |
| |
| if (sizeof(struct module_info32) <= bufsize) { |
| struct module_info32 info; |
| info.addr = (unsigned long)mod; |
| info.size = mod->size; |
| info.flags = mod->flags; |
| info.usecount = |
| ((mod_member_present(mod, can_unload) |
| && mod->can_unload) |
| ? -1 : atomic_read(&mod->uc.usecount)); |
| |
| if (copy_to_user(buf, &info, sizeof(struct module_info32))) |
| return -EFAULT; |
| } else |
| error = -ENOSPC; |
| |
| if (put_user(sizeof(struct module_info32), ret)) |
| return -EFAULT; |
| |
| return error; |
| } |
| |
| /* Note: it is necessary to treat which as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_query_module(char *name_user, u32 which, char *buf, __kernel_size_t32 bufsize, u32 ret) |
| { |
| struct module *mod; |
| int err; |
| |
| PPCDBG(PPCDBG_SYS32M, "sys32_query_module - entered - pid=%ld current=%lx comm=%s\n", |
| current->pid, current, current->comm); |
| |
| lock_kernel(); |
| if (name_user == 0) { |
| /* This finds "kernel_module" which is not exported. */ |
| for(mod = module_list; mod->next != NULL; mod = mod->next) |
| ; |
| } else { |
| long namelen; |
| char *name; |
| |
| if ((namelen = get_mod_name(name_user, &name)) < 0) { |
| err = namelen; |
| goto out; |
| } |
| err = -ENOENT; |
| if (namelen == 0) { |
| /* This finds "kernel_module" which is not exported. */ |
| for(mod = module_list; mod->next != NULL; mod = mod->next) |
| ; |
| } else if ((mod = find_module(name)) == NULL) { |
| put_mod_name(name); |
| goto out; |
| } |
| put_mod_name(name); |
| } |
| |
| switch ((int)which) |
| { |
| case 0: |
| err = 0; |
| break; |
| case QM_MODULES: |
| err = qm_modules(buf, bufsize, (__kernel_size_t32 *)AA(ret)); |
| break; |
| case QM_DEPS: |
| err = qm_deps(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret)); |
| break; |
| case QM_REFS: |
| err = qm_refs(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret)); |
| break; |
| case QM_SYMBOLS: |
| err = qm_symbols(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret)); |
| break; |
| case QM_INFO: |
| err = qm_info(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret)); |
| break; |
| default: |
| err = -EINVAL; |
| break; |
| } |
| out: |
| unlock_kernel(); |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_query_module - exited - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| |
| return err; |
| } |
| |
| |
| |
| struct kernel_sym32 { |
| u32 value; |
| char name[60]; |
| }; |
| |
| extern asmlinkage long sys_get_kernel_syms(struct kernel_sym *table); |
| |
| asmlinkage long sys32_get_kernel_syms(struct kernel_sym32 *table) |
| { |
| int len, i; |
| struct kernel_sym *tbl; |
| mm_segment_t old_fs; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_get_kernel_syms - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| |
| len = sys_get_kernel_syms(NULL); |
| if (!table) return len; |
| tbl = kmalloc (len * sizeof (struct kernel_sym), GFP_KERNEL); |
| if (!tbl) return -ENOMEM; |
| old_fs = get_fs(); |
| set_fs (KERNEL_DS); |
| sys_get_kernel_syms(tbl); |
| set_fs (old_fs); |
| for (i = 0; i < len; i++, table += sizeof (struct kernel_sym32)) { |
| if (put_user (tbl[i].value, &table->value) || |
| copy_to_user (table->name, tbl[i].name, 60)) |
| break; |
| } |
| kfree (tbl); |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_get_kernel_syms - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| return i; |
| } |
| |
| #else /* CONFIG_MODULES */ |
| |
| asmlinkage unsigned long sys32_create_module(const char *name_user, size_t size) |
| { |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_create_module - running - pid=%ld, comm=%s\n", current->pid, current->comm); |
| |
| return -ENOSYS; |
| } |
| |
| asmlinkage long sys32_init_module(const char *name_user, struct module *mod_user) |
| { |
| PPCDBG(PPCDBG_SYS32, "sys32_init_module - running - pid=%ld, comm=%s\n", current->pid, current->comm); |
| |
| return -ENOSYS; |
| } |
| |
| asmlinkage long sys32_delete_module(const char *name_user) |
| { |
| PPCDBG(PPCDBG_SYS32, "sys32_delete_module - running - pid=%ld, comm=%s\n", current->pid, current->comm); |
| |
| return -ENOSYS; |
| } |
| |
| /* Note: it is necessary to treat which as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_query_module(const char *name_user, u32 which, char *buf, size_t bufsize, size_t *ret) |
| { |
| PPCDBG(PPCDBG_SYS32, "sys32_query_module - entered - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| |
| /* Let the program know about the new interface. Not that it'll do them much good. */ |
| if ((int)which == 0) |
| return 0; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_query_module - exited - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| return -ENOSYS; |
| } |
| |
| asmlinkage long sys32_get_kernel_syms(struct kernel_sym *table) |
| { |
| PPCDBG(PPCDBG_SYS32, "sys32_get_kernel_syms - running - pid=%ld, comm=%s\n", current->pid, current->comm); |
| |
| return -ENOSYS; |
| } |
| |
| #endif /* CONFIG_MODULES */ |
| |
| |
| |
| /* Stuff for NFS server syscalls... */ |
| struct nfsctl_svc32 { |
| u16 svc32_port; |
| s32 svc32_nthreads; |
| }; |
| |
| struct nfsctl_client32 { |
| s8 cl32_ident[NFSCLNT_IDMAX+1]; |
| s32 cl32_naddr; |
| struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX]; |
| s32 cl32_fhkeytype; |
| s32 cl32_fhkeylen; |
| u8 cl32_fhkey[NFSCLNT_KEYMAX]; |
| }; |
| |
| struct nfsctl_export32 { |
| s8 ex32_client[NFSCLNT_IDMAX+1]; |
| s8 ex32_path[NFS_MAXPATHLEN+1]; |
| __kernel_dev_t32 ex32_dev; |
| __kernel_ino_t32 ex32_ino; |
| s32 ex32_flags; |
| __kernel_uid_t32 ex32_anon_uid; |
| __kernel_gid_t32 ex32_anon_gid; |
| }; |
| |
| struct nfsctl_uidmap32 { |
| u32 ug32_ident; /* char * */ |
| __kernel_uid_t32 ug32_uidbase; |
| s32 ug32_uidlen; |
| u32 ug32_udimap; /* uid_t * */ |
| __kernel_uid_t32 ug32_gidbase; |
| s32 ug32_gidlen; |
| u32 ug32_gdimap; /* gid_t * */ |
| }; |
| |
| struct nfsctl_fhparm32 { |
| struct sockaddr gf32_addr; |
| __kernel_dev_t32 gf32_dev; |
| __kernel_ino_t32 gf32_ino; |
| s32 gf32_version; |
| }; |
| |
| struct nfsctl_fdparm32 { |
| struct sockaddr gd32_addr; |
| s8 gd32_path[NFS_MAXPATHLEN+1]; |
| s32 gd32_version; |
| }; |
| |
| struct nfsctl_fsparm32 { |
| struct sockaddr gd32_addr; |
| s8 gd32_path[NFS_MAXPATHLEN+1]; |
| s32 gd32_maxlen; |
| }; |
| |
| struct nfsctl_arg32 { |
| s32 ca32_version; /* safeguard */ |
| union { |
| struct nfsctl_svc32 u32_svc; |
| struct nfsctl_client32 u32_client; |
| struct nfsctl_export32 u32_export; |
| struct nfsctl_uidmap32 u32_umap; |
| struct nfsctl_fhparm32 u32_getfh; |
| struct nfsctl_fdparm32 u32_getfd; |
| struct nfsctl_fsparm32 u32_getfs; |
| } u; |
| #define ca32_svc u.u32_svc |
| #define ca32_client u.u32_client |
| #define ca32_export u.u32_export |
| #define ca32_umap u.u32_umap |
| #define ca32_getfh u.u32_getfh |
| #define ca32_getfd u.u32_getfd |
| #define ca32_getfs u.u32_getfs |
| #define ca32_authd u.u32_authd |
| }; |
| |
| union nfsctl_res32 { |
| __u8 cr32_getfh[NFS_FHSIZE]; |
| struct knfsd_fh cr32_getfs; |
| }; |
| |
| static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32) |
| { |
| int err; |
| |
| err = __get_user(karg->ca_version, &arg32->ca32_version); |
| err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port); |
| err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads); |
| return err; |
| } |
| |
| static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32) |
| { |
| int err; |
| |
| err = __get_user(karg->ca_version, &arg32->ca32_version); |
| err |= copy_from_user(&karg->ca_client.cl_ident[0], |
| &arg32->ca32_client.cl32_ident[0], |
| NFSCLNT_IDMAX); |
| err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr); |
| err |= copy_from_user(&karg->ca_client.cl_addrlist[0], |
| &arg32->ca32_client.cl32_addrlist[0], |
| (sizeof(struct in_addr) * NFSCLNT_ADDRMAX)); |
| err |= __get_user(karg->ca_client.cl_fhkeytype, |
| &arg32->ca32_client.cl32_fhkeytype); |
| err |= __get_user(karg->ca_client.cl_fhkeylen, |
| &arg32->ca32_client.cl32_fhkeylen); |
| err |= copy_from_user(&karg->ca_client.cl_fhkey[0], |
| &arg32->ca32_client.cl32_fhkey[0], |
| NFSCLNT_KEYMAX); |
| |
| if(err) return -EFAULT; |
| return 0; |
| } |
| |
| static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32) |
| { |
| int err; |
| |
| err = __get_user(karg->ca_version, &arg32->ca32_version); |
| err |= copy_from_user(&karg->ca_export.ex_client[0], |
| &arg32->ca32_export.ex32_client[0], |
| NFSCLNT_IDMAX); |
| err |= copy_from_user(&karg->ca_export.ex_path[0], |
| &arg32->ca32_export.ex32_path[0], |
| NFS_MAXPATHLEN); |
| err |= __get_user(karg->ca_export.ex_dev, |
| &arg32->ca32_export.ex32_dev); |
| err |= __get_user(karg->ca_export.ex_ino, |
| &arg32->ca32_export.ex32_ino); |
| err |= __get_user(karg->ca_export.ex_flags, |
| &arg32->ca32_export.ex32_flags); |
| err |= __get_user(karg->ca_export.ex_anon_uid, |
| &arg32->ca32_export.ex32_anon_uid); |
| err |= __get_user(karg->ca_export.ex_anon_gid, |
| &arg32->ca32_export.ex32_anon_gid); |
| karg->ca_export.ex_anon_uid = karg->ca_export.ex_anon_uid; |
| karg->ca_export.ex_anon_gid = karg->ca_export.ex_anon_gid; |
| |
| if(err) return -EFAULT; |
| return 0; |
| } |
| |
| static int nfs_uud32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32) |
| { |
| u32 uaddr; |
| int i; |
| int err; |
| |
| memset(karg, 0, sizeof(*karg)); |
| if(__get_user(karg->ca_version, &arg32->ca32_version)) |
| return -EFAULT; |
| karg->ca_umap.ug_ident = (char *)get_free_page(GFP_USER); |
| if(!karg->ca_umap.ug_ident) |
| return -ENOMEM; |
| err = __get_user(uaddr, &arg32->ca32_umap.ug32_ident); |
| if(strncpy_from_user(karg->ca_umap.ug_ident, |
| (char *)A(uaddr), PAGE_SIZE) <= 0) |
| return -EFAULT; |
| err |= __get_user(karg->ca_umap.ug_uidbase, |
| &arg32->ca32_umap.ug32_uidbase); |
| err |= __get_user(karg->ca_umap.ug_uidlen, |
| &arg32->ca32_umap.ug32_uidlen); |
| err |= __get_user(uaddr, &arg32->ca32_umap.ug32_udimap); |
| if (err) |
| return -EFAULT; |
| karg->ca_umap.ug_udimap = kmalloc((sizeof(uid_t) * karg->ca_umap.ug_uidlen), |
| GFP_USER); |
| if(!karg->ca_umap.ug_udimap) |
| return -ENOMEM; |
| for(i = 0; i < karg->ca_umap.ug_uidlen; i++) |
| err |= __get_user(karg->ca_umap.ug_udimap[i], |
| &(((__kernel_uid_t32 *)A(uaddr))[i])); |
| err |= __get_user(karg->ca_umap.ug_gidbase, |
| &arg32->ca32_umap.ug32_gidbase); |
| err |= __get_user(karg->ca_umap.ug_uidlen, |
| &arg32->ca32_umap.ug32_gidlen); |
| err |= __get_user(uaddr, &arg32->ca32_umap.ug32_gdimap); |
| if (err) |
| return -EFAULT; |
| karg->ca_umap.ug_gdimap = kmalloc((sizeof(gid_t) * karg->ca_umap.ug_uidlen), |
| GFP_USER); |
| if(!karg->ca_umap.ug_gdimap) |
| return -ENOMEM; |
| for(i = 0; i < karg->ca_umap.ug_gidlen; i++) |
| err |= __get_user(karg->ca_umap.ug_gdimap[i], |
| &(((__kernel_gid_t32 *)A(uaddr))[i])); |
| |
| return err; |
| } |
| |
| static int nfs_getfh32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32) |
| { |
| int err; |
| |
| err = __get_user(karg->ca_version, &arg32->ca32_version); |
| err |= copy_from_user(&karg->ca_getfh.gf_addr, |
| &arg32->ca32_getfh.gf32_addr, |
| (sizeof(struct sockaddr))); |
| err |= __get_user(karg->ca_getfh.gf_dev, |
| &arg32->ca32_getfh.gf32_dev); |
| err |= __get_user(karg->ca_getfh.gf_ino, |
| &arg32->ca32_getfh.gf32_ino); |
| err |= __get_user(karg->ca_getfh.gf_version, |
| &arg32->ca32_getfh.gf32_version); |
| |
| if(err) return -EFAULT; |
| return 0; |
| } |
| |
| static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32) |
| { |
| int err; |
| |
| err = __get_user(karg->ca_version, &arg32->ca32_version); |
| err |= copy_from_user(&karg->ca_getfd.gd_addr, |
| &arg32->ca32_getfd.gd32_addr, |
| (sizeof(struct sockaddr))); |
| err |= copy_from_user(&karg->ca_getfd.gd_path, |
| &arg32->ca32_getfd.gd32_path, |
| (NFS_MAXPATHLEN+1)); |
| err |= __get_user(karg->ca_getfd.gd_version, |
| &arg32->ca32_getfd.gd32_version); |
| |
| if(err) return -EFAULT; |
| return 0; |
| } |
| |
| static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32) |
| { |
| int err; |
| |
| err = __get_user(karg->ca_version, &arg32->ca32_version); |
| err |= copy_from_user(&karg->ca_getfs.gd_addr, |
| &arg32->ca32_getfs.gd32_addr, |
| (sizeof(struct sockaddr))); |
| err |= copy_from_user(&karg->ca_getfs.gd_path, |
| &arg32->ca32_getfs.gd32_path, |
| (NFS_MAXPATHLEN+1)); |
| err |= __get_user(karg->ca_getfs.gd_maxlen, |
| &arg32->ca32_getfs.gd32_maxlen); |
| |
| if(err) return -EFAULT; |
| return 0; |
| } |
| |
| /* This really doesn't need translations, we are only passing |
| * back a union which contains opaque nfs file handle data. |
| */ |
| static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32) |
| { |
| int err; |
| |
| err = copy_to_user(res32, kres, sizeof(*res32)); |
| |
| if(err) return -EFAULT; |
| return 0; |
| } |
| |
| /* Note: it is necessary to treat cmd_parm as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| int asmlinkage sys32_nfsservctl(u32 cmd_parm, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32) |
| { |
| int cmd = (int)cmd_parm; |
| struct nfsctl_arg *karg = NULL; |
| union nfsctl_res *kres = NULL; |
| mm_segment_t oldfs; |
| int err; |
| |
| karg = kmalloc(sizeof(*karg), GFP_USER); |
| if(!karg) |
| return -ENOMEM; |
| if(res32) { |
| kres = kmalloc(sizeof(*kres), GFP_USER); |
| if(!kres) { |
| kfree(karg); |
| return -ENOMEM; |
| } |
| } |
| switch(cmd) { |
| case NFSCTL_SVC: |
| err = nfs_svc32_trans(karg, arg32); |
| break; |
| case NFSCTL_ADDCLIENT: |
| err = nfs_clnt32_trans(karg, arg32); |
| break; |
| case NFSCTL_DELCLIENT: |
| err = nfs_clnt32_trans(karg, arg32); |
| break; |
| case NFSCTL_EXPORT: |
| case NFSCTL_UNEXPORT: |
| err = nfs_exp32_trans(karg, arg32); |
| break; |
| /* This one is unimplemented, be we're ready for it. */ |
| case NFSCTL_UGIDUPDATE: |
| err = nfs_uud32_trans(karg, arg32); |
| break; |
| case NFSCTL_GETFH: |
| err = nfs_getfh32_trans(karg, arg32); |
| break; |
| case NFSCTL_GETFD: |
| err = nfs_getfd32_trans(karg, arg32); |
| break; |
| case NFSCTL_GETFS: |
| err = nfs_getfs32_trans(karg, arg32); |
| break; |
| default: |
| err = -EINVAL; |
| break; |
| } |
| if(err) |
| goto done; |
| oldfs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_nfsservctl(cmd, karg, kres); |
| set_fs(oldfs); |
| |
| if (err) |
| goto done; |
| |
| if((cmd == NFSCTL_GETFH) || |
| (cmd == NFSCTL_GETFD) || |
| (cmd == NFSCTL_GETFS)) |
| err = nfs_getfh32_res_trans(kres, res32); |
| |
| done: |
| if(karg) { |
| if(cmd == NFSCTL_UGIDUPDATE) { |
| if(karg->ca_umap.ug_ident) |
| kfree(karg->ca_umap.ug_ident); |
| if(karg->ca_umap.ug_udimap) |
| kfree(karg->ca_umap.ug_udimap); |
| if(karg->ca_umap.ug_gdimap) |
| kfree(karg->ca_umap.ug_gdimap); |
| } |
| kfree(karg); |
| } |
| if(kres) |
| kfree(kres); |
| return err; |
| } |
| |
| |
| |
| struct timespec32 { |
| s32 tv_sec; |
| s32 tv_nsec; |
| }; |
| |
| extern asmlinkage long sys_nanosleep(struct timespec *rqtp, struct timespec *rmtp); |
| |
| asmlinkage long sys32_nanosleep(struct timespec32 *rqtp, struct timespec32 *rmtp) |
| { |
| struct timespec t; |
| int ret; |
| mm_segment_t old_fs = get_fs (); |
| |
| PPCDBG(PPCDBG_SYS32NI, "sys32_nanosleep - running - pid=%ld, comm=%s \n", current->pid, current->comm); |
| |
| if (get_user (t.tv_sec, &rqtp->tv_sec) || |
| __get_user (t.tv_nsec, &rqtp->tv_nsec)) |
| return -EFAULT; |
| set_fs (KERNEL_DS); |
| ret = sys_nanosleep(&t, rmtp ? &t : NULL); |
| set_fs (old_fs); |
| if (rmtp && ret == -EINTR) { |
| if (__put_user (t.tv_sec, &rmtp->tv_sec) || |
| __put_user (t.tv_nsec, &rmtp->tv_nsec)) |
| return -EFAULT; |
| } |
| |
| return ret; |
| } |
| |
| |
| |
| |
| /* These are here just in case some old sparc32 binary calls it. */ |
| asmlinkage long sys32_pause(void) |
| { |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_pause - running - pid=%ld, comm=%s \n", current->pid, current->comm); |
| |
| current->state = TASK_INTERRUPTIBLE; |
| schedule(); |
| |
| return -ERESTARTNOHAND; |
| } |
| |
| |
| |
| static inline long get_it32(struct itimerval *o, struct itimerval32 *i) |
| { |
| return (!access_ok(VERIFY_READ, i, sizeof(*i)) || |
| (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) | |
| __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) | |
| __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) | |
| __get_user(o->it_value.tv_usec, &i->it_value.tv_usec))); |
| } |
| |
| static inline long put_it32(struct itimerval32 *o, struct itimerval *i) |
| { |
| return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || |
| (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) | |
| __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) | |
| __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) | |
| __put_user(i->it_value.tv_usec, &o->it_value.tv_usec))); |
| } |
| |
| static inline long get_tv32(struct timeval *o, struct timeval32 *i) |
| { |
| return (!access_ok(VERIFY_READ, i, sizeof(*i)) || |
| (__get_user(o->tv_sec, &i->tv_sec) | |
| __get_user(o->tv_usec, &i->tv_usec))); |
| } |
| |
| static inline long put_tv32(struct timeval32 *o, struct timeval *i) |
| { |
| return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || |
| (__put_user(i->tv_sec, &o->tv_sec) | |
| __put_user(i->tv_usec, &o->tv_usec))); |
| } |
| |
| |
| |
| |
| extern int do_getitimer(int which, struct itimerval *value); |
| |
| /* Note: it is necessary to treat which as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_getitimer(u32 which, struct itimerval32 *it) |
| { |
| struct itimerval kit; |
| int error; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_getitimer - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| error = do_getitimer((int)which, &kit); |
| if (!error && put_it32(it, &kit)) |
| error = -EFAULT; |
| |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_getitimer - exited - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| return error; |
| } |
| |
| |
| |
| extern int do_setitimer(int which, struct itimerval *, struct itimerval *); |
| |
| /* Note: it is necessary to treat which as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_setitimer(u32 which, struct itimerval32 *in, struct itimerval32 *out) |
| { |
| struct itimerval kin, kout; |
| int error; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_setitimer - entered - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| |
| if (in) { |
| if (get_it32(&kin, in)) |
| return -EFAULT; |
| } else |
| memset(&kin, 0, sizeof(kin)); |
| |
| error = do_setitimer((int)which, &kin, out ? &kout : NULL); |
| if (error || !out) |
| return error; |
| if (put_it32(out, &kout)) |
| return -EFAULT; |
| |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_setitimer - exited - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| return 0; |
| } |
| |
| #define RLIM_INFINITY32 0xffffffff |
| #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x) |
| |
| struct rlimit32 { |
| u32 rlim_cur; |
| u32 rlim_max; |
| }; |
| |
| extern asmlinkage long sys_getrlimit(unsigned int resource, struct rlimit *rlim); |
| asmlinkage long sys32_getrlimit(unsigned int resource, struct rlimit32 *rlim) |
| { |
| struct rlimit r; |
| int ret; |
| mm_segment_t old_fs = get_fs(); |
| |
| set_fs (KERNEL_DS); |
| ret = sys_getrlimit(resource, &r); |
| set_fs(old_fs); |
| if (!ret) { |
| ret = put_user(RESOURCE32(r.rlim_cur), &rlim->rlim_cur); |
| ret |= __put_user(RESOURCE32(r.rlim_max), &rlim->rlim_max); |
| } |
| |
| return ret; |
| } |
| |
| /* Back compatibility for getrlimit. Needed for some apps. */ |
| asmlinkage long sys32_old_getrlimit(unsigned int resource, struct rlimit32* rlim) |
| { |
| struct rlimit x; // 64-bit version of the resource limits. |
| struct rlimit32 x32; // 32-bit version of the resource limits. |
| long rc = 0; |
| |
| if (resource >= RLIM_NLIMITS) { |
| PPCDBG(PPCDBG_SYS32, "sys32_old_getrlimit - specified resource is too large (%x) - pid=%ld, comm=%s\n", resource, current->pid, current->comm); |
| return -EINVAL; |
| } |
| |
| memcpy(&x, current->rlim+resource, sizeof(struct rlimit)); |
| |
| if(x.rlim_cur > RLIM_INFINITY32) |
| x32.rlim_cur = RLIM_INFINITY32; |
| else |
| x32.rlim_cur = x.rlim_cur; |
| |
| if(x.rlim_max > RLIM_INFINITY32) |
| x32.rlim_max = RLIM_INFINITY32; |
| else |
| x32.rlim_max = x.rlim_max; |
| |
| rc = (copy_to_user(rlim, &x32, sizeof(x32))) ? (-EFAULT) : 0; |
| if (rc == 0) { |
| PPCDBG(PPCDBG_SYS32, "sys32_old_getrlimit - current=%x, maximum=%x - pid=%ld, comm=%s\n", x32.rlim_cur, x32.rlim_max, current->pid, current->comm); |
| } else { |
| PPCDBG(PPCDBG_SYS32, "sys32_old_getrlimit - unable to copy into user's storage - pid=%ld, comm=%s\n", current->pid, current->comm); |
| } |
| return rc; |
| } |
| |
| extern asmlinkage long sys_setrlimit(unsigned int resource, struct rlimit *rlim); |
| asmlinkage long sys32_setrlimit(unsigned int resource, struct rlimit32 *rlim) |
| { |
| struct rlimit r; |
| long ret; |
| mm_segment_t old_fs = get_fs (); |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_setrlimit - entered - resource=%x, rlim=%p - pid=%ld, comm=%s\n", resource, rlim, current->pid, current->comm); |
| |
| if (resource >= RLIM_NLIMITS) return -EINVAL; |
| if (get_user (r.rlim_cur, &rlim->rlim_cur) || |
| __get_user (r.rlim_max, &rlim->rlim_max)) |
| return -EFAULT; |
| if (r.rlim_cur >= RLIM_INFINITY32) |
| r.rlim_cur = RLIM_INFINITY; |
| if (r.rlim_max >= RLIM_INFINITY32) |
| r.rlim_max = RLIM_INFINITY; |
| set_fs (KERNEL_DS); |
| ret = sys_setrlimit(resource, &r); |
| set_fs (old_fs); |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_setrlimit - exited w/ ret=%x - pid=%ld, comm=%s\n", ret, current->pid, current->comm); |
| return ret; |
| } |
| |
| |
| struct rusage32 { |
| struct timeval32 ru_utime; |
| struct timeval32 ru_stime; |
| s32 ru_maxrss; |
| s32 ru_ixrss; |
| s32 ru_idrss; |
| s32 ru_isrss; |
| s32 ru_minflt; |
| s32 ru_majflt; |
| s32 ru_nswap; |
| s32 ru_inblock; |
| s32 ru_oublock; |
| s32 ru_msgsnd; |
| s32 ru_msgrcv; |
| s32 ru_nsignals; |
| s32 ru_nvcsw; |
| s32 ru_nivcsw; |
| }; |
| |
| static int put_rusage (struct rusage32 *ru, struct rusage *r) |
| { |
| int err; |
| |
| 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; |
| } |
| |
| |
| extern asmlinkage long sys_getrusage(int who, struct rusage *ru); |
| |
| /* Note: it is necessary to treat who as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_getrusage(u32 who, struct rusage32 *ru) |
| { |
| struct rusage r; |
| int ret; |
| mm_segment_t old_fs = get_fs(); |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_getrusage - running - pid=%ld, comm=%s\n", current->pid, current->comm); |
| |
| set_fs (KERNEL_DS); |
| ret = sys_getrusage((int)who, &r); |
| set_fs (old_fs); |
| if (put_rusage (ru, &r)) |
| return -EFAULT; |
| |
| return ret; |
| } |
| |
| |
| |
| |
| struct sysinfo32 { |
| s32 uptime; |
| u32 loads[3]; |
| u32 totalram; |
| u32 freeram; |
| u32 sharedram; |
| u32 bufferram; |
| u32 totalswap; |
| u32 freeswap; |
| unsigned short procs; |
| unsigned short pad; |
| u32 totalhigh; |
| u32 freehigh; |
| u32 mem_unit; |
| char _f[20-2*sizeof(u32)-sizeof(int)]; |
| }; |
| |
| extern asmlinkage long sys_sysinfo(struct sysinfo *info); |
| |
| asmlinkage long sys32_sysinfo(struct sysinfo32 *info) |
| { |
| struct sysinfo s; |
| int ret, err; |
| int bitcount = 0; |
| mm_segment_t old_fs = get_fs (); |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_sysinfo - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| set_fs (KERNEL_DS); |
| ret = sys_sysinfo(&s); |
| set_fs (old_fs); |
| /* Check to see if any memory value is too large for 32-bit and scale |
| * down if needed |
| */ |
| if ((s.totalram >> 32) || (s.totalswap >> 32)) { |
| while (s.mem_unit < PAGE_SIZE) { |
| s.mem_unit <<= 1; |
| bitcount++; |
| } |
| s.totalram >>= bitcount; |
| s.freeram >>= bitcount; |
| s.sharedram >>= bitcount; |
| s.bufferram >>= bitcount; |
| s.totalswap >>= bitcount; |
| s.freeswap >>= bitcount; |
| s.totalhigh >>= bitcount; |
| s.freehigh >>= bitcount; |
| } |
| |
| err = put_user (s.uptime, &info->uptime); |
| err |= __put_user (s.loads[0], &info->loads[0]); |
| err |= __put_user (s.loads[1], &info->loads[1]); |
| err |= __put_user (s.loads[2], &info->loads[2]); |
| err |= __put_user (s.totalram, &info->totalram); |
| err |= __put_user (s.freeram, &info->freeram); |
| err |= __put_user (s.sharedram, &info->sharedram); |
| err |= __put_user (s.bufferram, &info->bufferram); |
| err |= __put_user (s.totalswap, &info->totalswap); |
| err |= __put_user (s.freeswap, &info->freeswap); |
| err |= __put_user (s.procs, &info->procs); |
| err |= __put_user (s.totalhigh, &info->totalhigh); |
| err |= __put_user (s.freehigh, &info->freehigh); |
| err |= __put_user (s.mem_unit, &info->mem_unit); |
| |
| if (err) |
| return -EFAULT; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_sysinfo - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| return ret; |
| } |
| |
| |
| |
| |
| /* Translations due to time_t size differences. Which affects all |
| sorts of things, like timeval and itimerval. */ |
| extern struct timezone sys_tz; |
| extern int do_sys_settimeofday(struct timeval *tv, struct timezone *tz); |
| |
| asmlinkage long sys32_gettimeofday(struct timeval32 *tv, struct timezone *tz) |
| { |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_gettimeofday - running - pid=%ld, comm=%s\n", current->pid, current->comm); |
| |
| 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; |
| } |
| |
| |
| |
| asmlinkage long sys32_settimeofday(struct timeval32 *tv, struct timezone *tz) |
| { |
| struct timeval ktv; |
| struct timezone ktz; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_settimeofday - running - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| if (tv) { |
| if (get_tv32(&ktv, tv)) |
| return -EFAULT; |
| } |
| if (tz) { |
| if (copy_from_user(&ktz, tz, sizeof(ktz))) |
| return -EFAULT; |
| } |
| |
| return do_sys_settimeofday(tv ? &ktv : NULL, tz ? &ktz : NULL); |
| } |
| |
| |
| |
| |
| struct tms32 { |
| __kernel_clock_t32 tms_utime; |
| __kernel_clock_t32 tms_stime; |
| __kernel_clock_t32 tms_cutime; |
| __kernel_clock_t32 tms_cstime; |
| }; |
| |
| extern asmlinkage long sys_times(struct tms * tbuf); |
| |
| asmlinkage long sys32_times(struct tms32 *tbuf) |
| { |
| struct tms t; |
| long ret; |
| mm_segment_t old_fs = get_fs (); |
| int err; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_times - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| set_fs (KERNEL_DS); |
| ret = sys_times(tbuf ? &t : NULL); |
| set_fs (old_fs); |
| if (tbuf) { |
| err = put_user (t.tms_utime, &tbuf->tms_utime); |
| err |= __put_user (t.tms_stime, &tbuf->tms_stime); |
| err |= __put_user (t.tms_cutime, &tbuf->tms_cutime); |
| err |= __put_user (t.tms_cstime, &tbuf->tms_cstime); |
| if (err) |
| ret = -EFAULT; |
| } |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_times - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| return ret; |
| } |
| |
| struct msgbuf32 { s32 mtype; char mtext[1]; }; |
| |
| struct semid_ds32 { |
| struct ipc_perm32 sem_perm; |
| unsigned int _pad0; |
| __kernel_time_t32 sem_otime; |
| unsigned int _pad1; |
| __kernel_time_t32 sem_ctime; |
| u32 sem_base; |
| u32 sem_pending; |
| u32 sem_pending_last; |
| u32 undo; |
| unsigned short sem_nsems; |
| }; |
| |
| struct semid64_ds32 { |
| struct ipc64_perm32 sem_perm; |
| unsigned int __unused1; |
| __kernel_time_t32 sem_otime; |
| unsigned int __unused2; |
| __kernel_time_t32 sem_ctime; |
| u32 sem_nsems; |
| u32 __unused3; |
| u32 __unused4; |
| }; |
| |
| struct msqid_ds32 |
| { |
| struct ipc_perm32 msg_perm; |
| u32 msg_first; |
| u32 msg_last; |
| __kernel_time_t32 msg_stime; |
| __kernel_time_t32 msg_rtime; |
| __kernel_time_t32 msg_ctime; |
| u32 msg_lcbytes; |
| u32 msg_lqbytes; |
| unsigned short msg_cbytes; |
| unsigned short msg_qnum; |
| unsigned short msg_qbytes; |
| __kernel_ipc_pid_t32 msg_lspid; |
| __kernel_ipc_pid_t32 msg_lrpid; |
| }; |
| |
| struct msqid64_ds32 { |
| struct ipc64_perm32 msg_perm; |
| unsigned int __unused1; |
| __kernel_time_t32 msg_stime; |
| unsigned int __unused2; |
| __kernel_time_t32 msg_rtime; |
| unsigned int __unused3; |
| __kernel_time_t32 msg_ctime; |
| unsigned int msg_cbytes; |
| unsigned int msg_qnum; |
| unsigned int msg_qbytes; |
| __kernel_pid_t32 msg_lspid; |
| __kernel_pid_t32 msg_lrpid; |
| unsigned int __unused4; |
| unsigned int __unused5; |
| }; |
| |
| struct shmid_ds32 { |
| struct ipc_perm32 shm_perm; |
| int shm_segsz; |
| __kernel_time_t32 shm_atime; |
| __kernel_time_t32 shm_dtime; |
| __kernel_time_t32 shm_ctime; |
| __kernel_ipc_pid_t32 shm_cpid; |
| __kernel_ipc_pid_t32 shm_lpid; |
| unsigned short shm_nattch; |
| unsigned short __unused; |
| unsigned int __unused2; |
| unsigned int __unused3; |
| }; |
| |
| struct shmid64_ds32 { |
| struct ipc64_perm32 shm_perm; |
| unsigned int __unused1; |
| __kernel_time_t32 shm_atime; |
| unsigned int __unused2; |
| __kernel_time_t32 shm_dtime; |
| unsigned int __unused3; |
| __kernel_time_t32 shm_ctime; |
| unsigned int __unused4; |
| __kernel_size_t32 shm_segsz; |
| __kernel_pid_t32 shm_cpid; |
| __kernel_pid_t32 shm_lpid; |
| unsigned int shm_nattch; |
| unsigned int __unused5; |
| unsigned int __unused6; |
| }; |
| |
| /* |
| * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit |
| * emulation.. |
| * |
| * This is really horribly ugly. |
| */ |
| static long do_sys32_semctl(int first, int second, int third, void *uptr) |
| { |
| union semun fourth; |
| u32 pad; |
| int err, err2; |
| 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 SEM_INFO: |
| case GETVAL: |
| case GETPID: |
| case GETNCNT: |
| case GETZCNT: |
| case GETALL: |
| case SETALL: |
| case SETVAL: |
| err = sys_semctl(first, second, third, fourth); |
| break; |
| |
| case IPC_STAT: |
| case SEM_STAT: |
| if (third & IPC_64) { |
| struct semid64_ds s64; |
| struct semid64_ds32 *usp; |
| |
| usp = (struct semid64_ds32 *)A(pad); |
| fourth.__pad = &s64; |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_semctl(first, second, third, fourth); |
| set_fs(old_fs); |
| err2 = copy_to_user(&usp->sem_perm, &s64.sem_perm, |
| sizeof(struct ipc64_perm32)); |
| err2 |= __put_user(s64.sem_otime, &usp->sem_otime); |
| err2 |= __put_user(s64.sem_ctime, &usp->sem_ctime); |
| err2 |= __put_user(s64.sem_nsems, &usp->sem_nsems); |
| if (err2) |
| err = -EFAULT; |
| } else { |
| struct semid_ds s; |
| struct semid_ds32 *usp; |
| |
| usp = (struct semid_ds32 *)A(pad); |
| fourth.__pad = &s; |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_semctl(first, second, third, fourth); |
| set_fs(old_fs); |
| err2 = copy_to_user(&usp->sem_perm, &s.sem_perm, |
| sizeof(struct ipc_perm32)); |
| err2 |= __put_user(s.sem_otime, &usp->sem_otime); |
| err2 |= __put_user(s.sem_ctime, &usp->sem_ctime); |
| err2 |= __put_user(s.sem_nsems, &usp->sem_nsems); |
| if (err2) |
| err = -EFAULT; |
| } |
| break; |
| |
| case IPC_SET: |
| if (third & IPC_64) { |
| struct semid64_ds s64; |
| struct semid64_ds32 *usp; |
| |
| usp = (struct semid64_ds32 *)A(pad); |
| |
| err = get_user(s64.sem_perm.uid, &usp->sem_perm.uid); |
| err |= __get_user(s64.sem_perm.gid, |
| &usp->sem_perm.gid); |
| err |= __get_user(s64.sem_perm.mode, |
| &usp->sem_perm.mode); |
| if (err) |
| goto out; |
| fourth.__pad = &s64; |
| |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_semctl(first, second, third, fourth); |
| set_fs(old_fs); |
| |
| } else { |
| struct semid_ds s; |
| struct semid_ds32 *usp; |
| |
| usp = (struct semid_ds32 *)A(pad); |
| |
| err = get_user(s.sem_perm.uid, &usp->sem_perm.uid); |
| err |= __get_user(s.sem_perm.gid, |
| &usp->sem_perm.gid); |
| err |= __get_user(s.sem_perm.mode, |
| &usp->sem_perm.mode); |
| if (err) |
| goto out; |
| fourth.__pad = &s; |
| |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_semctl(first, second, third, fourth); |
| set_fs(old_fs); |
| } |
| break; |
| default: |
| err = -EINVAL; |
| } |
| out: |
| return err; |
| } |
| |
| #define MAXBUF (64*1024) |
| |
| static int |
| do_sys32_msgsnd(int first, int second, int third, void *uptr) |
| { |
| struct msgbuf *p; |
| struct msgbuf32 *up = (struct msgbuf32 *)uptr; |
| mm_segment_t old_fs; |
| int err; |
| |
| if (second < 0 || (second >= MAXBUF-sizeof(struct msgbuf))) |
| return -EINVAL; |
| |
| p = kmalloc(second + sizeof(struct msgbuf), GFP_USER); |
| if (!p) |
| return -ENOMEM; |
| err = get_user(p->mtype, &up->mtype); |
| err |= copy_from_user(p->mtext, &up->mtext, second); |
| if (err) { |
| err = -EFAULT; |
| 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 (second < 0 || (second >= MAXBUF-sizeof(struct msgbuf))) |
| return -EINVAL; |
| |
| if (!version) { |
| struct ipc_kludge_32 *uipck = (struct ipc_kludge_32 *)uptr; |
| struct ipc_kludge_32 ipck; |
| |
| err = -EINVAL; |
| if (!uptr) |
| goto out; |
| err = -EFAULT; |
| if (copy_from_user(&ipck, uipck, sizeof(struct ipc_kludge_32))) |
| goto out; |
| uptr = (void *)A(ipck.msgp); |
| msgtyp = ipck.msgtyp; |
| } |
| err = -ENOMEM; |
| p = kmalloc(second + sizeof (struct msgbuf), GFP_USER); |
| if (!p) |
| goto out; |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_msgrcv(first, p, second, 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; |
| 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) { |
| struct msqid64_ds m64; |
| struct msqid64_ds32 *up = (struct msqid64_ds32 *)uptr; |
| |
| err2 = copy_from_user(&m64.msg_perm, &up->msg_perm, |
| sizeof(struct ipc64_perm32)); |
| err2 |= __get_user(m64.msg_qbytes, &up->msg_qbytes); |
| if (err2) { |
| err = -EFAULT; |
| break; |
| } |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_msgctl(first, second, |
| (struct msqid_ds *)&m64); |
| set_fs(old_fs); |
| } else { |
| struct msqid_ds m; |
| struct msqid_ds32 *up = (struct msqid_ds32 *)uptr; |
| |
| err2 = copy_from_user(&m.msg_perm, &up->msg_perm, |
| sizeof(struct ipc_perm32)); |
| err2 |= __get_user(m.msg_qbytes, &up->msg_qbytes); |
| if (err2) { |
| err = -EFAULT; |
| break; |
| } |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_msgctl(first, second, &m); |
| set_fs(old_fs); |
| } |
| break; |
| |
| case IPC_STAT: |
| case MSG_STAT: |
| if (second & IPC_64) { |
| struct msqid64_ds m64; |
| struct msqid64_ds32 *up = (struct msqid64_ds32 *)uptr; |
| |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_msgctl(first, second, |
| (struct msqid_ds *)&m64); |
| set_fs(old_fs); |
| |
| err2 = copy_to_user(&up->msg_perm, &m64.msg_perm, |
| sizeof(struct ipc64_perm32)); |
| err2 |= __put_user(m64.msg_stime, &up->msg_stime); |
| err2 |= __put_user(m64.msg_rtime, &up->msg_rtime); |
| err2 |= __put_user(m64.msg_ctime, &up->msg_ctime); |
| err2 |= __put_user(m64.msg_cbytes, &up->msg_cbytes); |
| err2 |= __put_user(m64.msg_qnum, &up->msg_qnum); |
| err2 |= __put_user(m64.msg_qbytes, &up->msg_qbytes); |
| err2 |= __put_user(m64.msg_lspid, &up->msg_lspid); |
| err2 |= __put_user(m64.msg_lrpid, &up->msg_lrpid); |
| if (err2) |
| err = -EFAULT; |
| } else { |
| struct msqid64_ds m; |
| struct msqid_ds32 *up = (struct msqid_ds32 *)uptr; |
| |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_msgctl(first, second, (struct msqid_ds *)&m); |
| set_fs(old_fs); |
| |
| err2 = copy_to_user(&up->msg_perm, &m.msg_perm, |
| sizeof(struct ipc_perm32)); |
| err2 |= __put_user(m.msg_stime, &up->msg_stime); |
| err2 |= __put_user(m.msg_rtime, &up->msg_rtime); |
| err2 |= __put_user(m.msg_ctime, &up->msg_ctime); |
| err2 |= __put_user(m.msg_cbytes, &up->msg_cbytes); |
| err2 |= __put_user(m.msg_qnum, &up->msg_qnum); |
| err2 |= __put_user(m.msg_qbytes, &up->msg_qbytes); |
| err2 |= __put_user(m.msg_lspid, &up->msg_lspid); |
| err2 |= __put_user(m.msg_lrpid, &up->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 = sys_shmat(first, uptr, second, &raddr); |
| if (err) |
| return err; |
| err = put_user(raddr, uaddr); |
| return err; |
| } |
| |
| static int |
| do_sys32_shmctl(int first, int second, void *uptr) |
| { |
| int err = -EINVAL, err2; |
| mm_segment_t old_fs; |
| |
| switch (second & (~IPC_64)) { |
| |
| case IPC_INFO: |
| 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) { |
| struct shmid64_ds32 *up = (struct shmid64_ds32 *)uptr; |
| struct shmid64_ds s64; |
| |
| err = get_user(s64.shm_perm.uid, &up->shm_perm.uid); |
| err |= __get_user(s64.shm_perm.gid, &up->shm_perm.gid); |
| err |= __get_user(s64.shm_perm.mode, |
| &up->shm_perm.mode); |
| if (err) |
| break; |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_shmctl(first, second, |
| (struct shmid_ds *)&s64); |
| set_fs(old_fs); |
| } else { |
| struct shmid_ds32 *up = (struct shmid_ds32 *)uptr; |
| struct shmid_ds s; |
| |
| err = get_user(s.shm_perm.uid, &up->shm_perm.uid); |
| err |= __get_user(s.shm_perm.gid, &up->shm_perm.gid); |
| err |= __get_user(s.shm_perm.mode, &up->shm_perm.mode); |
| if (err) |
| break; |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_shmctl(first, second, &s); |
| set_fs(old_fs); |
| } |
| break; |
| |
| case IPC_STAT: |
| case SHM_STAT: |
| if (second & IPC_64) { |
| struct shmid64_ds32 *up = (struct shmid64_ds32 *)uptr; |
| struct shmid64_ds s64; |
| |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_shmctl(first, second, |
| (struct shmid_ds *)&s64); |
| set_fs(old_fs); |
| if (err < 0) |
| break; |
| |
| err2 = copy_to_user(&up->shm_perm, &s64.shm_perm, |
| sizeof(struct ipc64_perm32)); |
| err2 |= __put_user(s64.shm_atime, &up->shm_atime); |
| err2 |= __put_user(s64.shm_dtime, &up->shm_dtime); |
| err2 |= __put_user(s64.shm_ctime, &up->shm_ctime); |
| err2 |= __put_user(s64.shm_segsz, &up->shm_segsz); |
| err2 |= __put_user(s64.shm_nattch, &up->shm_nattch); |
| err2 |= __put_user(s64.shm_cpid, &up->shm_cpid); |
| err2 |= __put_user(s64.shm_lpid, &up->shm_lpid); |
| if (err2) |
| err = -EFAULT; |
| } else { |
| struct shmid_ds32 *up = (struct shmid_ds32 *)uptr; |
| struct shmid_ds s; |
| |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_shmctl(first, second, &s); |
| set_fs(old_fs); |
| if (err < 0) |
| break; |
| |
| err2 = copy_to_user(&up->shm_perm, &s.shm_perm, |
| sizeof(struct ipc_perm32)); |
| err2 |= __put_user (s.shm_atime, &up->shm_atime); |
| err2 |= __put_user (s.shm_dtime, &up->shm_dtime); |
| err2 |= __put_user (s.shm_ctime, &up->shm_ctime); |
| err2 |= __put_user (s.shm_segsz, &up->shm_segsz); |
| err2 |= __put_user (s.shm_nattch, &up->shm_nattch); |
| err2 |= __put_user (s.shm_cpid, &up->shm_cpid); |
| err2 |= __put_user (s.shm_lpid, &up->shm_lpid); |
| if (err2) |
| err = -EFAULT; |
| } |
| break; |
| |
| case SHM_INFO: { |
| struct shm_info si; |
| struct shm_info32 { |
| int used_ids; |
| u32 shm_tot, shm_rss, shm_swp; |
| u32 swap_attempts, swap_successes; |
| } *uip = (struct shm_info32 *)uptr; |
| |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| err = sys_shmctl(first, second, (struct shmid_ds *)&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; |
| } |
| } |
| return err; |
| } |
| |
| /* |
| * Note: it is necessary to treat first_parm, second_parm, and |
| * third_parm as unsigned ints, with the corresponding cast to a |
| * signed int to insure that the proper conversion (sign extension) |
| * between the register representation of a signed int (msr in 32-bit |
| * mode) and the register representation of a signed int (msr in |
| * 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_ipc(u32 call, u32 first_parm, u32 second_parm, u32 third_parm, u32 ptr, u32 fifth) |
| { |
| int first = (int)first_parm; |
| int second = (int)second_parm; |
| int third = (int)third_parm; |
| int version, err; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_ipc - entered - call=%x, parm1=%x, parm2=%x, parm3=%x, parm4=%x, parm5=%x \n", |
| call, first_parm, second_parm, third_parm, ptr, fifth); |
| |
| version = call >> 16; /* hack for backward compatibility */ |
| call &= 0xffff; |
| |
| switch (call) { |
| |
| case SEMOP: |
| /* struct sembuf is the same on 32 and 64bit :)) */ |
| err = sys_semop(first, (struct sembuf *)AA(ptr), |
| second); |
| break; |
| case SEMGET: |
| err = sys_semget(first, second, third); |
| break; |
| case SEMCTL: |
| err = do_sys32_semctl(first, second, third, |
| (void *)AA(ptr)); |
| break; |
| |
| case MSGSND: |
| err = do_sys32_msgsnd(first, second, third, |
| (void *)AA(ptr)); |
| break; |
| case MSGRCV: |
| err = do_sys32_msgrcv(first, second, fifth, third, |
| version, (void *)AA(ptr)); |
| break; |
| case MSGGET: |
| err = sys_msgget((key_t)first, second); |
| break; |
| case MSGCTL: |
| err = do_sys32_msgctl(first, second, (void *)AA(ptr)); |
| break; |
| |
| case SHMAT: |
| err = do_sys32_shmat(first, second, third, |
| version, (void *)AA(ptr)); |
| break; |
| case SHMDT: |
| err = sys_shmdt((char *)AA(ptr)); |
| break; |
| case SHMGET: |
| err = sys_shmget(first, second, third); |
| break; |
| case SHMCTL: |
| err = do_sys32_shmctl(first, second, (void *)AA(ptr)); |
| break; |
| default: |
| err = -ENOSYS; |
| break; |
| } |
| |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_ipc - exited w/ %d/0x%x \n", err, err); |
| return err; |
| } |
| |
| /* stat syscall methods. */ |
| extern asmlinkage int sys_stat(char* filename, struct __old_kernel_stat* statbuf); |
| |
| static int cp_old_stat32(struct inode* inode, struct __old_kernel_stat32* statbuf) |
| { |
| static int warncount = 5; |
| struct __old_kernel_stat32 tmp; |
| |
| if (warncount) { |
| warncount--; |
| printk("VFS: Warning: %s using old stat() call. Recompile your binary.\n", |
| current->comm); |
| } |
| |
| tmp.st_dev = kdev_t_to_nr(inode->i_dev); |
| tmp.st_ino = inode->i_ino; |
| tmp.st_mode = inode->i_mode; |
| tmp.st_nlink = inode->i_nlink; |
| SET_OLDSTAT_UID(tmp, inode->i_uid); |
| SET_OLDSTAT_GID(tmp, inode->i_gid); |
| tmp.st_rdev = kdev_t_to_nr(inode->i_rdev); |
| tmp.st_size = inode->i_size; |
| tmp.st_atime = inode->i_atime; |
| tmp.st_mtime = inode->i_mtime; |
| tmp.st_ctime = inode->i_ctime; |
| return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0; |
| } |
| |
| asmlinkage long sys32_stat(char* filename, struct __old_kernel_stat32* statbuf) |
| { |
| struct nameidata nd; |
| int error; |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_stat - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| error = user_path_walk(filename, &nd); |
| if (!error) { |
| error = do_revalidate(nd.dentry); |
| if (!error) |
| error = cp_old_stat32(nd.dentry->d_inode, statbuf); |
| path_release(&nd); |
| } |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_stat - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| return error; |
| } |
| |
| asmlinkage long sys32_fstat(unsigned int fd, struct __old_kernel_stat32* statbuf) |
| { |
| struct file *f; |
| int err = -EBADF; |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_fstat - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| f = fget(fd); |
| if (f) { |
| struct dentry * dentry = f->f_dentry; |
| |
| err = do_revalidate(dentry); |
| if (!err) |
| err = cp_old_stat32(dentry->d_inode, statbuf); |
| fput(f); |
| } |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_fstat - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| return err; |
| } |
| |
| asmlinkage long sys32_lstat(char* filename, struct __old_kernel_stat32* statbuf) |
| { |
| struct nameidata nd; |
| int error; |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_lstat - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| error = user_path_walk_link(filename, &nd); |
| if (!error) { |
| error = do_revalidate(nd.dentry); |
| if (!error) |
| error = cp_old_stat32(nd.dentry->d_inode, statbuf); |
| |
| path_release(&nd); |
| } |
| |
| PPCDBG(PPCDBG_SYS32X, "sys32_lstat - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| return error; |
| } |
| |
| extern asmlinkage ssize_t sys_sendfile(int out_fd, int in_fd, off_t* offset, size_t count); |
| |
| /* Note: it is necessary to treat out_fd and in_fd as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_sendfile(u32 out_fd, u32 in_fd, __kernel_off_t32* offset, u32 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((int)out_fd, (int)in_fd, offset ? &of : NULL, count); |
| set_fs(old_fs); |
| |
| if (offset && put_user(of, offset)) |
| return -EFAULT; |
| |
| return ret; |
| } |
| |
| extern asmlinkage int sys_setsockopt(int fd, int level, int optname, char *optval, int optlen); |
| |
| asmlinkage long sys32_setsockopt(int fd, int level, int optname, char* optval, int optlen) |
| { |
| |
| PPCDBG(PPCDBG_SYS32,"sys32_setsockopt - running - pid=%ld, comm=%s\n", current->pid, current->comm); |
| |
| if (level == SOL_SOCKET && optname == SO_ATTACH_FILTER) { |
| struct sock_fprog32 { |
| __u16 len; |
| __u32 filter; |
| } *fprog32 = (struct sock_fprog32 *)optval; |
| struct sock_fprog kfprog; |
| struct sock_filter *kfilter; |
| unsigned int fsize; |
| mm_segment_t old_fs; |
| __u32 uptr; |
| int ret; |
| |
| if (get_user(kfprog.len, &fprog32->len) || |
| __get_user(uptr, &fprog32->filter)) |
| return -EFAULT; |
| kfprog.filter = (struct sock_filter *)A(uptr); |
| fsize = kfprog.len * sizeof(struct sock_filter); |
| kfilter = (struct sock_filter *)kmalloc(fsize, GFP_KERNEL); |
| if (kfilter == NULL) |
| return -ENOMEM; |
| if (copy_from_user(kfilter, kfprog.filter, fsize)) { |
| kfree(kfilter); |
| return -EFAULT; |
| } |
| kfprog.filter = kfilter; |
| old_fs = get_fs(); |
| set_fs(KERNEL_DS); |
| ret = sys_setsockopt(fd, level, optname, |
| (char *)&kfprog, sizeof(kfprog)); |
| set_fs(old_fs); |
| kfree(kfilter); |
| return ret; |
| } |
| return sys_setsockopt(fd, level, optname, optval, optlen); |
| } |
| |
| |
| |
| |
| #define MAX_SOCK_ADDR 128 /* 108 for Unix domain - 16 for IP, 16 for IPX, 24 for IPv6, about 80 for AX.25 */ |
| #define __CMSG32_NXTHDR(ctl, len, cmsg, cmsglen) __cmsg32_nxthdr((ctl),(len),(cmsg),(cmsglen)) |
| #define CMSG32_NXTHDR(mhdr, cmsg, cmsglen) cmsg32_nxthdr((mhdr), (cmsg), (cmsglen)) |
| |
| #define CMSG32_ALIGN(len) ( ((len)+sizeof(int)-1) & ~(sizeof(int)-1) ) |
| |
| #define CMSG32_DATA(cmsg) ((void *)((char *)(cmsg) + CMSG32_ALIGN(sizeof(struct cmsghdr32)))) |
| #define CMSG32_SPACE(len) (CMSG32_ALIGN(sizeof(struct cmsghdr32)) + CMSG32_ALIGN(len)) |
| #define CMSG32_LEN(len) (CMSG32_ALIGN(sizeof(struct cmsghdr32)) + (len)) |
| #define __CMSG32_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr32) ? \ |
| (struct cmsghdr32 *)(ctl) : \ |
| (struct cmsghdr32 *)NULL) |
| #define CMSG32_FIRSTHDR(msg) __CMSG32_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen) |
| #define CMSG32_OK(ucmlen, ucmsg, mhdr) \ |
| ((ucmlen) >= sizeof(struct cmsghdr32) && \ |
| (ucmlen) <= (unsigned long) \ |
| ((mhdr)->msg_controllen - \ |
| ((char *)(ucmsg) - (char *)(mhdr)->msg_control))) |
| |
| struct msghdr32 |
| { |
| u32 msg_name; |
| int msg_namelen; |
| u32 msg_iov; |
| __kernel_size_t32 msg_iovlen; |
| u32 msg_control; |
| __kernel_size_t32 msg_controllen; |
| unsigned msg_flags; |
| }; |
| |
| struct cmsghdr32 |
| { |
| __kernel_size_t32 cmsg_len; |
| int cmsg_level; |
| int cmsg_type; |
| }; |
| |
| __inline__ struct cmsghdr32 *__cmsg32_nxthdr(void *__ctl, __kernel_size_t __size, |
| struct cmsghdr32 *__cmsg, int __cmsg_len) |
| { |
| struct cmsghdr32 * __ptr; |
| |
| __ptr = (struct cmsghdr32 *)(((unsigned char *) __cmsg) + |
| CMSG32_ALIGN(__cmsg_len)); |
| if ((unsigned long)((char*)(__ptr+1) - (char *) __ctl) > __size) |
| return NULL; |
| |
| return __ptr; |
| } |
| |
| __inline__ struct cmsghdr32 *cmsg32_nxthdr (struct msghdr *__msg, |
| struct cmsghdr32 *__cmsg, |
| int __cmsg_len) |
| { |
| return __cmsg32_nxthdr(__msg->msg_control, __msg->msg_controllen, |
| __cmsg, __cmsg_len); |
| } |
| |
| extern __inline__ struct socket *socki_lookup(struct inode *inode) |
| { |
| return &inode->u.socket_i; |
| } |
| |
| extern __inline__ struct socket *sockfd_lookup(int fd, int *err) |
| { |
| struct file *file; |
| struct inode *inode; |
| |
| if (!(file = fget(fd))) |
| { |
| *err = -EBADF; |
| return NULL; |
| } |
| |
| inode = file->f_dentry->d_inode; |
| if (!inode || !inode->i_sock || !socki_lookup(inode)) |
| { |
| *err = -ENOTSOCK; |
| fput(file); |
| return NULL; |
| } |
| |
| return socki_lookup(inode); |
| } |
| |
| extern __inline__ void sockfd_put(struct socket *sock) |
| { |
| fput(sock->file); |
| } |
| |
| static inline int msghdr_from_user32_to_kern(struct msghdr *kmsg, struct msghdr32 *umsg) |
| { |
| u32 tmp1, tmp2, tmp3; |
| int err; |
| |
| err = get_user(tmp1, &umsg->msg_name); |
| err |= __get_user(tmp2, &umsg->msg_iov); |
| err |= __get_user(tmp3, &umsg->msg_control); |
| if (err) |
| return -EFAULT; |
| |
| kmsg->msg_name = (void *)A(tmp1); |
| kmsg->msg_iov = (struct iovec *)A(tmp2); |
| kmsg->msg_control = (void *)A(tmp3); |
| |
| err = get_user(kmsg->msg_namelen, &umsg->msg_namelen); |
| err |= get_user(kmsg->msg_iovlen, &umsg->msg_iovlen); |
| err |= get_user(kmsg->msg_controllen, &umsg->msg_controllen); |
| err |= get_user(kmsg->msg_flags, &umsg->msg_flags); |
| |
| return err; |
| } |
| |
| static inline int iov_from_user32_to_kern(struct iovec *kiov, |
| struct iovec32 *uiov32, |
| int niov) |
| { |
| int tot_len = 0; |
| |
| while(niov > 0) { |
| u32 len, buf; |
| |
| if(get_user(len, &uiov32->iov_len) || |
| get_user(buf, &uiov32->iov_base)) { |
| tot_len = -EFAULT; |
| break; |
| } |
| tot_len += len; |
| kiov->iov_base = (void *)A(buf); |
| kiov->iov_len = (__kernel_size_t) len; |
| uiov32++; |
| kiov++; |
| niov--; |
| } |
| return tot_len; |
| } |
| |
| /* I've named the args so it is easy to tell whose space the pointers are in. */ |
| static int verify_iovec32(struct msghdr *kern_msg, struct iovec *kern_iov, |
| char *kern_address, int mode) |
| { |
| int tot_len; |
| |
| if(kern_msg->msg_namelen) { |
| if(mode==VERIFY_READ) { |
| int err = move_addr_to_kernel(kern_msg->msg_name, |
| kern_msg->msg_namelen, |
| kern_address); |
| if(err < 0) |
| return err; |
| } |
| kern_msg->msg_name = kern_address; |
| } else |
| kern_msg->msg_name = NULL; |
| |
| if(kern_msg->msg_iovlen > UIO_FASTIOV) { |
| kern_iov = kmalloc(kern_msg->msg_iovlen * sizeof(struct iovec), |
| GFP_KERNEL); |
| if(!kern_iov) |
| return -ENOMEM; |
| } |
| |
| tot_len = iov_from_user32_to_kern(kern_iov, |
| (struct iovec32 *)kern_msg->msg_iov, |
| kern_msg->msg_iovlen); |
| if(tot_len >= 0) |
| kern_msg->msg_iov = kern_iov; |
| else if(kern_msg->msg_iovlen > UIO_FASTIOV) |
| kfree(kern_iov); |
| |
| return tot_len; |
| } |
| |
| /* There is a lot of hair here because the alignment rules (and |
| * thus placement) of cmsg headers and length are different for |
| * 32-bit apps. -DaveM |
| */ |
| static int cmsghdr_from_user32_to_kern(struct msghdr *kmsg, |
| unsigned char *stackbuf, int stackbuf_size) |
| { |
| struct cmsghdr32 *ucmsg; |
| struct cmsghdr *kcmsg, *kcmsg_base; |
| __kernel_size_t32 ucmlen; |
| __kernel_size_t kcmlen, tmp; |
| int err = -EFAULT; |
| |
| kcmlen = 0; |
| kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf; |
| ucmsg = CMSG32_FIRSTHDR(kmsg); |
| while(ucmsg != NULL) { |
| if (get_user(ucmlen, &ucmsg->cmsg_len)) |
| return -EFAULT; |
| |
| /* Catch bogons. */ |
| if (!CMSG32_OK(ucmlen, ucmsg, kmsg)) |
| return -EINVAL; |
| |
| tmp = ((ucmlen - CMSG32_ALIGN(sizeof(*ucmsg))) + |
| CMSG_ALIGN(sizeof(struct cmsghdr))); |
| tmp = CMSG_ALIGN(tmp); |
| kcmlen += tmp; |
| ucmsg = CMSG32_NXTHDR(kmsg, ucmsg, ucmlen); |
| } |
| if (kcmlen == 0) |
| return -EINVAL; |
| |
| /* The kcmlen holds the 64-bit version of the control length. |
| * It may not be modified as we do not stick it into the kmsg |
| * until we have successfully copied over all of the data |
| * from the user. |
| */ |
| if (kcmlen > stackbuf_size) |
| kcmsg_base = kcmsg = kmalloc(kcmlen, GFP_KERNEL); |
| if (kcmsg == NULL) |
| return -ENOBUFS; |
| |
| /* Now copy them over neatly. */ |
| memset(kcmsg, 0, kcmlen); |
| ucmsg = CMSG32_FIRSTHDR(kmsg); |
| while (ucmsg != NULL) { |
| if (__get_user(ucmlen, &ucmsg->cmsg_len)) |
| goto Efault; |
| tmp = ((ucmlen - CMSG32_ALIGN(sizeof(*ucmsg))) + |
| CMSG_ALIGN(sizeof(struct cmsghdr))); |
| if ((char *)kcmsg_base + kcmlen - (char *)kcmsg < CMSG_ALIGN(tmp)) |
| goto Einval; |
| kcmsg->cmsg_len = tmp; |
| tmp = CMSG_ALIGN(tmp); |
| if (__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level) || |
| __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type) || |
| copy_from_user(CMSG_DATA(kcmsg), |
| CMSG32_DATA(ucmsg), |
| (ucmlen - CMSG32_ALIGN(sizeof(*ucmsg))))) |
| goto Efault; |
| |
| /* Advance. */ |
| kcmsg = (struct cmsghdr *)((char *)kcmsg + tmp); |
| ucmsg = CMSG32_NXTHDR(kmsg, ucmsg, ucmlen); |
| } |
| |
| /* Ok, looks like we made it. Hook it up and return success. */ |
| kmsg->msg_control = kcmsg_base; |
| kmsg->msg_controllen = kcmlen; |
| return 0; |
| |
| Einval: |
| err = -EINVAL; |
| Efault: |
| if (kcmsg_base != (struct cmsghdr *)stackbuf) |
| kfree(kcmsg_base); |
| return err; |
| } |
| |
| asmlinkage long sys32_sendmsg(int fd, struct msghdr32* user_msg, unsigned int user_flags) |
| { |
| struct socket *sock; |
| char address[MAX_SOCK_ADDR]; |
| struct iovec iov[UIO_FASTIOV]; |
| unsigned char ctl[sizeof(struct cmsghdr) + 20]; |
| unsigned char *ctl_buf = ctl; |
| struct msghdr kern_msg; |
| int err, total_len; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_sendmsg - entered - fd=%x, user_msg@=%p, user_flags=%x \n", fd, user_msg, user_flags); |
| |
| if(msghdr_from_user32_to_kern(&kern_msg, user_msg)) |
| return -EFAULT; |
| if(kern_msg.msg_iovlen > UIO_MAXIOV) |
| return -EMSGSIZE; |
| err = verify_iovec32(&kern_msg, iov, address, VERIFY_READ); |
| if (err < 0) |
| goto out; |
| total_len = err; |
| |
| if(kern_msg.msg_controllen) { |
| err = cmsghdr_from_user32_to_kern(&kern_msg, ctl, sizeof(ctl)); |
| if(err) |
| goto out_freeiov; |
| ctl_buf = kern_msg.msg_control; |
| } |
| kern_msg.msg_flags = user_flags; |
| |
| sock = sockfd_lookup(fd, &err); |
| if (sock != NULL) { |
| if (sock->file->f_flags & O_NONBLOCK) |
| kern_msg.msg_flags |= MSG_DONTWAIT; |
| err = sock_sendmsg(sock, &kern_msg, total_len); |
| sockfd_put(sock); |
| } |
| |
| /* N.B. Use kfree here, as kern_msg.msg_controllen might change? */ |
| if(ctl_buf != ctl) |
| kfree(ctl_buf); |
| out_freeiov: |
| if(kern_msg.msg_iov != iov) |
| kfree(kern_msg.msg_iov); |
| out: |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_sendmsg - exited w/ %lx \n", err); |
| return err; |
| } |
| |
| static void put_cmsg32(struct msghdr *kmsg, int level, int type, |
| int len, void *data) |
| { |
| struct cmsghdr32 *cm = (struct cmsghdr32 *) kmsg->msg_control; |
| struct cmsghdr32 cmhdr; |
| int cmlen = CMSG32_LEN(len); |
| |
| if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) { |
| kmsg->msg_flags |= MSG_CTRUNC; |
| return; |
| } |
| |
| if (kmsg->msg_controllen < cmlen) { |
| kmsg->msg_flags |= MSG_CTRUNC; |
| cmlen = kmsg->msg_controllen; |
| } |
| cmhdr.cmsg_level = level; |
| cmhdr.cmsg_type = type; |
| cmhdr.cmsg_len = cmlen; |
| |
| if (copy_to_user(cm, &cmhdr, sizeof cmhdr)) |
| return; |
| if (copy_to_user(CMSG32_DATA(cm), data, cmlen - sizeof(struct cmsghdr32))) |
| return; |
| cmlen = CMSG32_SPACE(len); |
| kmsg->msg_control += cmlen; |
| kmsg->msg_controllen -= cmlen; |
| } |
| |
| |
| static void scm_detach_fds32(struct msghdr *kmsg, struct scm_cookie *scm) |
| { |
| struct cmsghdr32 *cm = (struct cmsghdr32 *) kmsg->msg_control; |
| int fdmax = (kmsg->msg_controllen - sizeof(struct cmsghdr32)) / sizeof(int); |
| int fdnum = scm->fp->count; |
| struct file **fp = scm->fp->fp; |
| int *cmfptr; |
| int err = 0, i; |
| |
| if (fdnum < fdmax) |
| fdmax = fdnum; |
| |
| for (i = 0, cmfptr = (int *) CMSG32_DATA(cm); i < fdmax; i++, cmfptr++) { |
| int new_fd; |
| err = get_unused_fd(); |
| if (err < 0) |
| break; |
| new_fd = err; |
| err = put_user(new_fd, cmfptr); |
| if (err) { |
| put_unused_fd(new_fd); |
| break; |
| } |
| /* Bump the usage count and install the file. */ |
| get_file(fp[i]); |
| fd_install(new_fd, fp[i]); |
| } |
| |
| if (i > 0) { |
| int cmlen = CMSG32_LEN(i * sizeof(int)); |
| if (!err) |
| err = put_user(SOL_SOCKET, &cm->cmsg_level); |
| if (!err) |
| err = put_user(SCM_RIGHTS, &cm->cmsg_type); |
| if (!err) |
| err = put_user(cmlen, &cm->cmsg_len); |
| if (!err) { |
| cmlen = CMSG32_SPACE(i * sizeof(int)); |
| kmsg->msg_control += cmlen; |
| kmsg->msg_controllen -= cmlen; |
| } |
| } |
| if (i < fdnum) |
| kmsg->msg_flags |= MSG_CTRUNC; |
| |
| /* |
| * All of the files that fit in the message have had their |
| * usage counts incremented, so we just free the list. |
| */ |
| __scm_destroy(scm); |
| } |
| |
| /* In these cases we (currently) can just copy to data over verbatim |
| * because all CMSGs created by the kernel have well defined types which |
| * have the same layout in both the 32-bit and 64-bit API. One must add |
| * some special cased conversions here if we start sending control messages |
| * with incompatible types. |
| * |
| * SCM_RIGHTS and SCM_CREDENTIALS are done by hand in recvmsg32 right after |
| * we do our work. The remaining cases are: |
| * |
| * SOL_IP IP_PKTINFO struct in_pktinfo 32-bit clean |
| * IP_TTL int 32-bit clean |
| * IP_TOS __u8 32-bit clean |
| * IP_RECVOPTS variable length 32-bit clean |
| * IP_RETOPTS variable length 32-bit clean |
| * (these last two are clean because the types are defined |
| * by the IPv4 protocol) |
| * IP_RECVERR struct sock_extended_err + |
| * struct sockaddr_in 32-bit clean |
| * SOL_IPV6 IPV6_RECVERR struct sock_extended_err + |
| * struct sockaddr_in6 32-bit clean |
| * IPV6_PKTINFO struct in6_pktinfo 32-bit clean |
| * IPV6_HOPLIMIT int 32-bit clean |
| * IPV6_FLOWINFO u32 32-bit clean |
| * IPV6_HOPOPTS ipv6 hop exthdr 32-bit clean |
| * IPV6_DSTOPTS ipv6 dst exthdr(s) 32-bit clean |
| * IPV6_RTHDR ipv6 routing exthdr 32-bit clean |
| * IPV6_AUTHHDR ipv6 auth exthdr 32-bit clean |
| */ |
| static void cmsg32_recvmsg_fixup(struct msghdr *kmsg, |
| unsigned long orig_cmsg_uptr, __kernel_size_t orig_cmsg_len) |
| { |
| unsigned char *workbuf, *wp; |
| unsigned long bufsz, space_avail; |
| struct cmsghdr *ucmsg; |
| |
| bufsz = ((unsigned long)kmsg->msg_control) - orig_cmsg_uptr; |
| space_avail = kmsg->msg_controllen + bufsz; |
| wp = workbuf = kmalloc(bufsz, GFP_KERNEL); |
| if(workbuf == NULL) |
| goto fail; |
| |
| /* To make this more sane we assume the kernel sends back properly |
| * formatted control messages. Because of how the kernel will truncate |
| * the cmsg_len for MSG_TRUNC cases, we need not check that case either. |
| */ |
| ucmsg = (struct cmsghdr *) orig_cmsg_uptr; |
| while(((unsigned long)ucmsg) <= |
| (((unsigned long)kmsg->msg_control) - sizeof(struct cmsghdr))) { |
| struct cmsghdr32 *kcmsg32 = (struct cmsghdr32 *) wp; |
| int clen64, clen32; |
| |
| /* UCMSG is the 64-bit format CMSG entry in user-space. |
| * KCMSG32 is within the kernel space temporary buffer |
| * we use to convert into a 32-bit style CMSG. |
| */ |
| __get_user(kcmsg32->cmsg_len, &ucmsg->cmsg_len); |
| __get_user(kcmsg32->cmsg_level, &ucmsg->cmsg_level); |
| __get_user(kcmsg32->cmsg_type, &ucmsg->cmsg_type); |
| |
| clen64 = kcmsg32->cmsg_len; |
| if ((clen64 < CMSG_ALIGN(sizeof(*ucmsg))) || |
| (clen64 > (orig_cmsg_len + wp - workbuf))) |
| break; |
| copy_from_user(CMSG32_DATA(kcmsg32), CMSG_DATA(ucmsg), |
| clen64 - CMSG_ALIGN(sizeof(*ucmsg))); |
| clen32 = ((clen64 - CMSG_ALIGN(sizeof(*ucmsg))) + |
| CMSG32_ALIGN(sizeof(struct cmsghdr32))); |
| kcmsg32->cmsg_len = clen32; |
| |
| switch (kcmsg32->cmsg_type) { |
| /* |
| * The timestamp type's data needs to be converted |
| * from 64-bit time values to 32-bit time values |
| */ |
| case SO_TIMESTAMP: { |
| __kernel_time_t32* ptr_time32 = CMSG32_DATA(kcmsg32); |
| __kernel_time_t* ptr_time = CMSG_DATA(ucmsg); |
| *ptr_time32 = *ptr_time; |
| *(ptr_time32+1) = *(ptr_time+1); |
| kcmsg32->cmsg_len -= 2*(sizeof(__kernel_time_t) - |
| sizeof(__kernel_time_t32)); |
| } |
| default:; |
| } |
| |
| ucmsg = (struct cmsghdr *) (((char *)ucmsg) + CMSG_ALIGN(clen64)); |
| wp = (((char *)kcmsg32) + CMSG32_ALIGN(kcmsg32->cmsg_len)); |
| } |
| |
| /* Copy back fixed up data, and adjust pointers. */ |
| bufsz = (wp - workbuf); |
| copy_to_user((void *)orig_cmsg_uptr, workbuf, bufsz); |
| |
| kmsg->msg_control = (struct cmsghdr *) |
| (((char *)orig_cmsg_uptr) + bufsz); |
| kmsg->msg_controllen = space_avail - bufsz; |
| |
| kfree(workbuf); |
| return; |
| |
| fail: |
| /* If we leave the 64-bit format CMSG chunks in there, |
| * the application could get confused and crash. So to |
| * ensure greater recovery, we report no CMSGs. |
| */ |
| kmsg->msg_controllen += bufsz; |
| kmsg->msg_control = (void *) orig_cmsg_uptr; |
| } |
| |
| asmlinkage long sys32_recvmsg(int fd, struct msghdr32* user_msg, unsigned int user_flags) |
| { |
| struct iovec iovstack[UIO_FASTIOV]; |
| struct msghdr kern_msg; |
| char addr[MAX_SOCK_ADDR]; |
| struct socket *sock; |
| struct iovec *iov = iovstack; |
| struct sockaddr *uaddr; |
| int *uaddr_len; |
| unsigned long cmsg_ptr; |
| __kernel_size_t cmsg_len; |
| int err, total_len, len = 0; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_recvmsg - entered - fd=%x, user_msg@=%p, user_flags=%x \n", fd, user_msg, user_flags); |
| |
| if(msghdr_from_user32_to_kern(&kern_msg, user_msg)) |
| return -EFAULT; |
| if(kern_msg.msg_iovlen > UIO_MAXIOV) |
| return -EMSGSIZE; |
| |
| uaddr = kern_msg.msg_name; |
| uaddr_len = &user_msg->msg_namelen; |
| err = verify_iovec32(&kern_msg, iov, addr, VERIFY_WRITE); |
| if (err < 0) |
| goto out; |
| total_len = err; |
| |
| cmsg_ptr = (unsigned long) kern_msg.msg_control; |
| cmsg_len = kern_msg.msg_controllen; |
| kern_msg.msg_flags = 0; |
| |
| sock = sockfd_lookup(fd, &err); |
| if (sock != NULL) { |
| struct scm_cookie scm; |
| |
| if (sock->file->f_flags & O_NONBLOCK) |
| user_flags |= MSG_DONTWAIT; |
| memset(&scm, 0, sizeof(scm)); |
| err = sock->ops->recvmsg(sock, &kern_msg, total_len, |
| user_flags, &scm); |
| if(err >= 0) { |
| len = err; |
| if(!kern_msg.msg_control) { |
| if(sock->passcred || scm.fp) |
| kern_msg.msg_flags |= MSG_CTRUNC; |
| if(scm.fp) |
| __scm_destroy(&scm); |
| } else { |
| /* If recvmsg processing itself placed some |
| * control messages into user space, it's is |
| * using 64-bit CMSG processing, so we need |
| * to fix it up before we tack on more stuff. |
| */ |
| if((unsigned long) kern_msg.msg_control != cmsg_ptr) |
| cmsg32_recvmsg_fixup(&kern_msg, |
| cmsg_ptr, cmsg_len); |
| |
| /* Wheee... */ |
| if(sock->passcred) |
| put_cmsg32(&kern_msg, |
| SOL_SOCKET, SCM_CREDENTIALS, |
| sizeof(scm.creds), &scm.creds); |
| if(scm.fp != NULL) |
| scm_detach_fds32(&kern_msg, &scm); |
| } |
| } |
| sockfd_put(sock); |
| } |
| |
| if (uaddr != NULL && err >= 0 && kern_msg.msg_namelen) |
| err = move_addr_to_user(addr, kern_msg.msg_namelen, uaddr, uaddr_len); |
| if(cmsg_ptr != 0 && err >= 0) { |
| unsigned long ucmsg_ptr = ((unsigned long)kern_msg.msg_control); |
| __kernel_size_t32 uclen = (__kernel_size_t32) (ucmsg_ptr - cmsg_ptr); |
| err |= __put_user(uclen, &user_msg->msg_controllen); |
| } |
| if(err >= 0) |
| err = __put_user(kern_msg.msg_flags, &user_msg->msg_flags); |
| if(kern_msg.msg_iov != iov) |
| kfree(kern_msg.msg_iov); |
| out: |
| if(err < 0) |
| return err; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_recvmsg - exited w/ %lx \n", len); |
| return len; |
| } |
| |
| /* |
| * 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_string32()' 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. |
| */ |
| static int copy_strings32(int argc, u32 * argv, struct linux_binprm *bprm) |
| { |
| 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))) |
| return -EFAULT; |
| |
| if (bprm->p < len) |
| return -E2BIG; |
| |
| bprm->p -= len; |
| |
| pos = bprm->p; |
| while (len) { |
| char *kaddr; |
| struct page *page; |
| int offset, bytes_to_copy, new, err; |
| |
| offset = pos % PAGE_SIZE; |
| page = bprm->page[pos / PAGE_SIZE]; |
| new = 0; |
| if (!page) { |
| page = alloc_page(GFP_USER); |
| bprm->page[pos / PAGE_SIZE] = page; |
| if (!page) |
| return -ENOMEM; |
| new = 1; |
| } |
| kaddr = (char *)kmap(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); |
| flush_page_to_ram(page); |
| kunmap((unsigned long)kaddr); |
| |
| if (err) |
| return -EFAULT; |
| |
| pos += bytes_to_copy; |
| str += bytes_to_copy; |
| len -= bytes_to_copy; |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * sys32_execve() executes a new program. |
| */ |
| static int do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs) |
| { |
| struct linux_binprm bprm; |
| struct file * file; |
| int retval; |
| int i; |
| |
| bprm.p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *); |
| memset(bprm.page, 0, MAX_ARG_PAGES * sizeof(bprm.page[0])); |
| |
| file = open_exec(filename); |
| |
| retval = PTR_ERR(file); |
| if (IS_ERR(file)) |
| return retval; |
| |
| bprm.file = file; |
| bprm.filename = filename; |
| bprm.sh_bang = 0; |
| bprm.loader = 0; |
| bprm.exec = 0; |
| if ((bprm.argc = count32(argv, bprm.p / sizeof(u32))) < 0) { |
| allow_write_access(file); |
| fput(file); |
| return bprm.argc; |
| } |
| if ((bprm.envc = count32(envp, bprm.p / sizeof(u32))) < 0) { |
| allow_write_access(file); |
| fput(file); |
| return bprm.argc; |
| } |
| |
| 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) |
| /* execve success */ |
| return retval; |
| |
| out: |
| /* Something went wrong, return the inode and free the argument pages*/ |
| allow_write_access(bprm.file); |
| if (bprm.file) |
| fput(bprm.file); |
| |
| for (i=0 ; i<MAX_ARG_PAGES ; i++) |
| if (bprm.page[i]) |
| __free_page(bprm.page[i]); |
| |
| return retval; |
| } |
| |
| asmlinkage long sys32_execve(unsigned long a0, unsigned long a1, unsigned long a2, |
| unsigned long a3, unsigned long a4, unsigned long a5, |
| struct pt_regs *regs) |
| { |
| int error; |
| char * filename; |
| |
| filename = getname((char *) a0); |
| error = PTR_ERR(filename); |
| if (IS_ERR(filename)) |
| goto out; |
| if (regs->msr & MSR_FP) |
| giveup_fpu(current); |
| |
| error = do_execve32(filename, (u32*) a1, (u32*) a2, regs); |
| |
| if (error == 0) |
| current->ptrace &= ~PT_DTRACE; |
| putname(filename); |
| |
| out: |
| return error; |
| } |
| |
| /* Set up a thread for executing a new program. */ |
| void start_thread32(struct pt_regs* regs, unsigned long nip, unsigned long sp) |
| { |
| set_fs(USER_DS); |
| memset(regs->gpr, 0, sizeof(regs->gpr)); |
| memset(®s->ctr, 0, 4 * sizeof(regs->ctr)); |
| regs->nip = nip; |
| regs->gpr[1] = sp; |
| regs->msr = MSR_USER32; |
| #ifndef CONFIG_SMP |
| if (last_task_used_math == current) |
| last_task_used_math = 0; |
| #endif |
| current->thread.fpscr = 0; |
| } |
| |
| extern asmlinkage int sys_prctl(int option, unsigned long arg2, unsigned long arg3, |
| unsigned long arg4, unsigned long arg5); |
| |
| /* Note: it is necessary to treat option as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5) |
| { |
| PPCDBG(PPCDBG_SYS32, "sys32_prctl - running - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| |
| return sys_prctl((int)option, |
| (unsigned long) arg2, |
| (unsigned long) arg3, |
| (unsigned long) arg4, |
| (unsigned long) arg5); |
| } |
| |
| extern asmlinkage int sys_sched_rr_get_interval(pid_t pid, struct timespec *interval); |
| |
| /* Note: it is necessary to treat pid as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage int sys32_sched_rr_get_interval(u32 pid, struct timespec32 *interval) |
| { |
| struct timespec t; |
| int ret; |
| mm_segment_t old_fs = get_fs (); |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_sched_rr_get_interval - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| set_fs (KERNEL_DS); |
| ret = sys_sched_rr_get_interval((int)pid, &t); |
| set_fs (old_fs); |
| if (put_user (t.tv_sec, &interval->tv_sec) || |
| __put_user (t.tv_nsec, &interval->tv_nsec)) |
| return -EFAULT; |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_sched_rr_get_interval - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| return ret; |
| } |
| |
| extern asmlinkage int sys_pciconfig_read(unsigned long bus, unsigned long dfn, unsigned long off, |
| unsigned long len, unsigned char *buf); |
| |
| asmlinkage int sys32_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf) |
| { |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_pciconfig_read - running - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm); |
| |
| return sys_pciconfig_read((unsigned long) bus, |
| (unsigned long) dfn, |
| (unsigned long) off, |
| (unsigned long) len, |
| (unsigned char *)AA(ubuf)); |
| } |
| |
| |
| |
| |
| extern asmlinkage int sys_pciconfig_write(unsigned long bus, unsigned long dfn, unsigned long off, |
| unsigned long len, unsigned char *buf); |
| |
| asmlinkage int sys32_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf) |
| { |
| |
| PPCDBG(PPCDBG_SYS32, "sys32_pciconfig_write - running - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| return sys_pciconfig_write((unsigned long) bus, |
| (unsigned long) dfn, |
| (unsigned long) off, |
| (unsigned long) len, |
| (unsigned char *)AA(ubuf)); |
| } |
| |
| extern asmlinkage int sys_newuname(struct new_utsname * name); |
| |
| asmlinkage int ppc64_newuname(struct new_utsname * name) |
| { |
| int errno = sys_newuname(name); |
| |
| if (current->personality == PER_LINUX32 && !errno) { |
| if(copy_to_user(name->machine, "ppc\0\0", 8)) { |
| errno = -EFAULT; |
| } |
| } |
| return errno; |
| } |
| |
| extern asmlinkage long sys_personality(unsigned long); |
| |
| asmlinkage int sys32_personality(unsigned long personality) |
| { |
| int ret; |
| if (current->personality == PER_LINUX32 && personality == PER_LINUX) |
| personality = PER_LINUX32; |
| ret = sys_personality(personality); |
| if (ret == PER_LINUX32) |
| ret = PER_LINUX; |
| return ret; |
| } |
| |
| |
| |
| extern asmlinkage long sys_access(const char * filename, int mode); |
| |
| /* Note: it is necessary to treat mode as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_access(const char * filename, u32 mode) |
| { |
| return sys_access(filename, (int)mode); |
| } |
| |
| |
| extern asmlinkage int sys_clone(int p1, int p2, int p3, int p4, int p5, int p6, struct pt_regs *regs); |
| |
| /* Note: it is necessary to treat p1, p2, p3, p4, p5, p7, and regs as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage int sys32_clone(u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, struct pt_regs *regs) |
| { |
| return sys_clone((int)p1, (int)p2, (int)p3, (int)p4, (int)p5, (int)p6, regs); |
| } |
| |
| |
| extern asmlinkage long sys_creat(const char * pathname, int mode); |
| |
| /* Note: it is necessary to treat mode as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_creat(const char * pathname, u32 mode) |
| { |
| return sys_creat(pathname, (int)mode); |
| } |
| |
| |
| extern asmlinkage long sys_exit(int error_code); |
| |
| /* Note: it is necessary to treat error_code as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_exit(u32 error_code) |
| { |
| return sys_exit((int)error_code); |
| } |
| |
| |
| extern asmlinkage long sys_wait4(pid_t pid, unsigned int * stat_addr, int options, struct rusage * ru); |
| |
| /* Note: it is necessary to treat pid and options as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_wait4(u32 pid, unsigned int * stat_addr, u32 options, struct rusage * ru) |
| { |
| PPCDBG(PPCDBG_SYS32, "sys32_wait4 - running - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm); |
| |
| if (!ru) |
| return sys_wait4((int)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((int)pid, stat_addr ? &status : NULL, options, &r); |
| set_fs (old_fs); |
| if (put_rusage ((struct rusage32 *)ru, &r)) return -EFAULT; |
| if (stat_addr && put_user (status, stat_addr)) |
| return -EFAULT; |
| return ret; |
| } |
| |
| } |
| |
| |
| extern asmlinkage long sys_waitpid(pid_t pid, unsigned int * stat_addr, int options); |
| |
| /* Note: it is necessary to treat pid and options as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_waitpid(u32 pid, unsigned int * stat_addr, u32 options) |
| { |
| return sys_waitpid((int)pid, stat_addr, (int)options); |
| } |
| |
| |
| extern asmlinkage int sys_fork(int p1, int p2, int p3, int p4, int p5, int p6, struct pt_regs *regs); |
| |
| /* Note: it is necessary to treat p1, p2, p3, p4, p5, and p6 as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage int sys32_fork(u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, struct pt_regs *regs) |
| { |
| return sys_fork((int)p1, (int)p2, (int)p3, (int)p4, (int)p5, (int)p6, regs); |
| } |
| |
| |
| extern asmlinkage long sys_getgroups(int gidsetsize, gid_t *grouplist); |
| |
| /* Note: it is necessary to treat gidsetsize as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_getgroups(u32 gidsetsize, gid_t *grouplist) |
| { |
| return sys_getgroups((int)gidsetsize, grouplist); |
| } |
| |
| |
| extern asmlinkage long sys_getpgid(pid_t pid); |
| |
| /* Note: it is necessary to treat pid as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_getpgid(u32 pid) |
| { |
| return sys_getpgid((int)pid); |
| } |
| |
| |
| extern asmlinkage long sys_getpriority(int which, int who); |
| |
| /* Note: it is necessary to treat which and who as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_getpriority(u32 which, u32 who) |
| { |
| return sys_getpriority((int)which, (int)who); |
| } |
| |
| |
| extern asmlinkage long sys_getsid(pid_t pid); |
| |
| /* Note: it is necessary to treat pid as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_getsid(u32 pid) |
| { |
| return sys_getsid((int)pid); |
| } |
| |
| |
| extern asmlinkage long sys_kill(int pid, int sig); |
| |
| /* Note: it is necessary to treat pid and sig as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_kill(u32 pid, u32 sig) |
| { |
| return sys_kill((int)pid, (int)sig); |
| } |
| |
| |
| extern asmlinkage long sys_mkdir(const char * pathname, int mode); |
| |
| /* Note: it is necessary to treat mode as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_mkdir(const char * pathname, u32 mode) |
| { |
| return sys_mkdir(pathname, (int)mode); |
| } |
| |
| |
| extern asmlinkage long sys_mlockall(int flags); |
| |
| /* Note: it is necessary to treat flags as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_mlockall(u32 flags) |
| { |
| return sys_mlockall((int)flags); |
| } |
| |
| |
| extern asmlinkage long sys_msync(unsigned long start, size_t len, int flags); |
| |
| /* Note: it is necessary to treat flags as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_msync(unsigned long start, size_t len, u32 flags) |
| { |
| return sys_msync(start, len, (int)flags); |
| } |
| |
| |
| extern asmlinkage long sys_nice(int increment); |
| |
| /* Note: it is necessary to treat increment as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_nice(u32 increment) |
| { |
| return sys_nice((int)increment); |
| } |
| |
| /* |
| * This is just a version for 32-bit applications which does |
| * not force O_LARGEFILE on. |
| */ |
| long sys32_open(const char * filename, int flags, int mode) |
| { |
| char * tmp; |
| int fd, error; |
| |
| tmp = getname(filename); |
| fd = PTR_ERR(tmp); |
| if (!IS_ERR(tmp)) { |
| fd = get_unused_fd(); |
| if (fd >= 0) { |
| struct file * f = filp_open(tmp, flags, mode); |
| error = PTR_ERR(f); |
| if (IS_ERR(f)) |
| goto out_error; |
| fd_install(fd, f); |
| } |
| out: |
| putname(tmp); |
| } |
| return fd; |
| |
| out_error: |
| put_unused_fd(fd); |
| fd = error; |
| goto out; |
| } |
| |
| extern asmlinkage long sys_readlink(const char * path, char * buf, int bufsiz); |
| |
| /* Note: it is necessary to treat bufsiz as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_readlink(const char * path, char * buf, u32 bufsiz) |
| { |
| return sys_readlink(path, buf, (int)bufsiz); |
| } |
| |
| |
| extern asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, void * arg); |
| |
| /* Note: it is necessary to treat magic1 and magic2 as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_reboot(u32 magic1, u32 magic2, unsigned int cmd, void * arg) |
| { |
| return sys_reboot((int)magic1, (int)magic2, cmd, arg); |
| } |
| |
| |
| extern asmlinkage long sys_sched_get_priority_max(int policy); |
| |
| /* Note: it is necessary to treat option as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_sched_get_priority_max(u32 policy) |
| { |
| return sys_sched_get_priority_max((int)policy); |
| } |
| |
| |
| extern asmlinkage long sys_sched_get_priority_min(int policy); |
| |
| /* Note: it is necessary to treat policy as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_sched_get_priority_min(u32 policy) |
| { |
| return sys_sched_get_priority_min((int)policy); |
| } |
| |
| |
| extern asmlinkage long sys_sched_getparam(pid_t pid, struct sched_param *param); |
| |
| /* Note: it is necessary to treat pid as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_sched_getparam(u32 pid, struct sched_param *param) |
| { |
| return sys_sched_getparam((int)pid, param); |
| } |
| |
| |
| extern asmlinkage long sys_sched_getscheduler(pid_t pid); |
| |
| /* Note: it is necessary to treat pid as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_sched_getscheduler(u32 pid) |
| { |
| return sys_sched_getscheduler((int)pid); |
| } |
| |
| |
| extern asmlinkage long sys_sched_setparam(pid_t pid, struct sched_param *param); |
| |
| /* Note: it is necessary to treat pid as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_sched_setparam(u32 pid, struct sched_param *param) |
| { |
| return sys_sched_setparam((int)pid, param); |
| } |
| |
| |
| extern asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, struct sched_param *param); |
| |
| /* Note: it is necessary to treat pid and policy as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_sched_setscheduler(u32 pid, u32 policy, struct sched_param *param) |
| { |
| return sys_sched_setscheduler((int)pid, (int)policy, param); |
| } |
| |
| |
| extern asmlinkage long sys_setdomainname(char *name, int len); |
| |
| /* Note: it is necessary to treat len as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_setdomainname(char *name, u32 len) |
| { |
| return sys_setdomainname(name, (int)len); |
| } |
| |
| |
| extern asmlinkage long sys_setgroups(int gidsetsize, gid_t *grouplist); |
| |
| /* Note: it is necessary to treat gidsetsize as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_setgroups(u32 gidsetsize, gid_t *grouplist) |
| { |
| return sys_setgroups((int)gidsetsize, grouplist); |
| } |
| |
| |
| extern asmlinkage long sys_sethostname(char *name, int len); |
| |
| /* Note: it is necessary to treat len as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_sethostname(char *name, u32 len) |
| { |
| return sys_sethostname(name, (int)len); |
| } |
| |
| |
| extern asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); |
| |
| /* Note: it is necessary to treat pid and pgid as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_setpgid(u32 pid, u32 pgid) |
| { |
| return sys_setpgid((int)pid, (int)pgid); |
| } |
| |
| |
| extern asmlinkage long sys_setpriority(int which, int who, int niceval); |
| |
| /* Note: it is necessary to treat which, who, and niceval as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_setpriority(u32 which, u32 who, u32 niceval) |
| { |
| return sys_setpriority((int)which, (int)who, (int)niceval); |
| } |
| |
| |
| extern asmlinkage long sys_ssetmask(int newmask); |
| |
| /* Note: it is necessary to treat newmask as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_ssetmask(u32 newmask) |
| { |
| return sys_ssetmask((int) newmask); |
| } |
| |
| |
| extern asmlinkage long sys_swapon(const char * specialfile, int swap_flags); |
| |
| /* Note: it is necessary to treat swap_flags as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_swapon(const char * specialfile, u32 swap_flags) |
| { |
| return sys_swapon(specialfile, (int)swap_flags); |
| } |
| |
| |
| extern asmlinkage long sys_syslog(int type, char * buf, int len); |
| |
| /* Note: it is necessary to treat type and len as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_syslog(u32 type, char * buf, u32 len) |
| { |
| return sys_syslog((int)type, buf, (int)len); |
| } |
| |
| |
| extern asmlinkage long sys_umask(int mask); |
| |
| /* Note: it is necessary to treat mask as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_umask(u32 mask) |
| { |
| return sys_umask((int)mask); |
| } |
| |
| |
| extern asmlinkage long sys_umount(char * name, int flags); |
| |
| /* Note: it is necessary to treat flags as an unsigned int, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage long sys32_umount(char * name, u32 flags) |
| { |
| return sys_umount(name, (int)flags); |
| } |
| |
| |
| extern asmlinkage int sys_vfork(int p1, int p2, int p3, int p4, int p5, int p6, struct pt_regs *regs); |
| |
| /* Note: it is necessary to treat p1, p2, p3, p4, p5, and p6 as unsigned ints, |
| * with the corresponding cast to a signed int to insure that the |
| * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) |
| * and the register representation of a signed int (msr in 64-bit mode) is performed. |
| */ |
| asmlinkage int sys32_vfork(u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, struct pt_regs *regs) |
| { |
| return sys_vfork((int)p1, (int)p2, (int)p3, (int)p4, (int)p5, (int)p6, regs); |
| } |
| |
| extern asmlinkage ssize_t sys_pread(unsigned int fd, char * buf, |
| size_t count, loff_t pos); |
| |
| extern asmlinkage ssize_t sys_pwrite(unsigned int fd, const char * buf, |
| size_t count, loff_t pos); |
| |
| asmlinkage ssize_t32 sys32_pread(unsigned int fd, char *ubuf, |
| __kernel_size_t32 count, u32 reg6, u32 poshi, u32 poslo) |
| { |
| return sys_pread(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo)); |
| } |
| |
| asmlinkage ssize_t32 sys32_pwrite(unsigned int fd, char *ubuf, |
| __kernel_size_t32 count, u32 reg6 ,u32 poshi, u32 poslo) |
| { |
| return sys_pwrite(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo)); |
| } |
| |
| extern ssize_t sys_readahead(int fd, loff_t offset, size_t count); |
| |
| ssize_t32 sys32_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count) |
| { |
| return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, AA(count)); |
| } |
| |
| extern asmlinkage long sys_truncate(const char * path, unsigned long length); |
| extern asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); |
| |
| asmlinkage int sys32_truncate64(const char * path, u32 reg4, unsigned long high, unsigned long low) |
| { |
| if ((int)high < 0) |
| return -EINVAL; |
| else |
| return sys_truncate(path, (high << 32) | low); |
| } |
| |
| asmlinkage int sys32_ftruncate64(unsigned int fd, u32 reg4, unsigned long high, unsigned long low) |
| { |
| if ((int)high < 0) |
| return -EINVAL; |
| else |
| return sys_ftruncate(fd, (high << 32) | low); |
| } |
| |
| |
| |
| asmlinkage long sys32_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg) |
| { |
| if (cmd >= F_GETLK64 && cmd <= F_SETLKW64) |
| return sys_fcntl(fd, cmd + F_GETLK - F_GETLK64, arg); |
| return sys32_fcntl(fd, cmd, arg); |
| } |
| |
| |
| |
| |
| struct __sysctl_args32 { |
| u32 name; |
| int nlen; |
| u32 oldval; |
| u32 oldlenp; |
| u32 newval; |
| u32 newlen; |
| u32 __unused[4]; |
| }; |
| |
| extern asmlinkage long sys32_sysctl(struct __sysctl_args32 *args) |
| { |
| struct __sysctl_args32 tmp; |
| int error; |
| size_t oldlen, *oldlenp = NULL; |
| unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7; |
| |
| if (copy_from_user(&tmp, args, sizeof(tmp))) |
| return -EFAULT; |
| |
| if (tmp.oldval && tmp.oldlenp) { |
| /* Duh, this is ugly and might not work if sysctl_args |
| is in read-only memory, but do_sysctl does indirectly |
| a lot of uaccess in both directions and we'd have to |
| 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)) |
| return -EFAULT; |
| oldlenp = (size_t *)addr; |
| } |
| |
| lock_kernel(); |
| error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval), |
| oldlenp, (void *)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))) |
| error = -EFAULT; |
| } |
| copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)); |
| } |
| return error; |
| } |
| |
| asmlinkage long sys32_time(__kernel_time_t32* tloc) |
| { |
| __kernel_time_t32 secs; |
| |
| struct timeval tv; |
| |
| do_gettimeofday( &tv ); |
| secs = tv.tv_sec; |
| |
| if (tloc) { |
| if (put_user(secs,tloc)) |
| secs = -EFAULT; |
| } |
| |
| return secs; |
| } |
| |
| extern unsigned long sys_mmap(unsigned long addr, size_t len, |
| unsigned long prot, unsigned long flags, |
| unsigned long fd, off_t offset); |
| |
| unsigned long sys32_mmap2(unsigned long addr, size_t len, |
| unsigned long prot, unsigned long flags, |
| unsigned long fd, unsigned long pgoff) |
| { |
| /* This should remain 12 even if PAGE_SIZE changes */ |
| return sys_mmap(addr, len, prot, flags, fd, pgoff << 12); |
| } |