| /* |
| * 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 <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/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/poll.h> |
| #include <linux/personality.h> |
| #include <linux/stat.h> |
| #include <linux/mman.h> |
| #include <linux/in.h> |
| #include <linux/syscalls.h> |
| #include <linux/unistd.h> |
| #include <linux/sysctl.h> |
| #include <linux/binfmts.h> |
| #include <linux/security.h> |
| #include <linux/compat.h> |
| #include <linux/ptrace.h> |
| #include <linux/elf.h> |
| |
| #include <asm/ptrace.h> |
| #include <asm/types.h> |
| #include <asm/ipc.h> |
| #include <asm/uaccess.h> |
| #include <asm/unistd.h> |
| #include <asm/semaphore.h> |
| #include <asm/time.h> |
| #include <asm/mmu_context.h> |
| #include <asm/systemcfg.h> |
| |
| #include "pci.h" |
| |
| /* readdir & getdents */ |
| #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (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 __user * 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 __user * 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 __user *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; |
| } |
| |
| struct linux_dirent32 { |
| u32 d_ino; |
| u32 d_off; |
| unsigned short d_reclen; |
| char d_name[1]; |
| }; |
| |
| struct getdents_callback32 { |
| struct linux_dirent32 __user * current_dir; |
| struct linux_dirent32 __user * 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 __user * dirent; |
| struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf; |
| int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 2); |
| |
| buf->error = -EINVAL; /* only used if we fail.. */ |
| if (reclen > buf->count) |
| return -EINVAL; |
| dirent = buf->previous; |
| if (dirent) { |
| if (__put_user(offset, &dirent->d_off)) |
| goto efault; |
| } |
| dirent = buf->current_dir; |
| if (__put_user(ino, &dirent->d_ino)) |
| goto efault; |
| if (__put_user(reclen, &dirent->d_reclen)) |
| goto efault; |
| if (copy_to_user(dirent->d_name, name, namlen)) |
| goto efault; |
| if (__put_user(0, dirent->d_name + namlen)) |
| goto efault; |
| if (__put_user(d_type, (char __user *) dirent + reclen - 1)) |
| goto efault; |
| buf->previous = dirent; |
| dirent = (void __user *)dirent + reclen; |
| buf->current_dir = dirent; |
| buf->count -= reclen; |
| return 0; |
| efault: |
| buf->error = -EFAULT; |
| return -EFAULT; |
| } |
| |
| asmlinkage long sys32_getdents(unsigned int fd, struct linux_dirent32 __user *dirent, |
| unsigned int count) |
| { |
| struct file * file; |
| struct linux_dirent32 __user * lastdirent; |
| struct getdents_callback32 buf; |
| int error; |
| |
| error = -EFAULT; |
| if (!access_ok(VERIFY_WRITE, dirent, count)) |
| goto out; |
| |
| error = -EBADF; |
| 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; |
| error = buf.error; |
| lastdirent = buf.previous; |
| if (lastdirent) { |
| if (put_user(file->f_pos, &lastdirent->d_off)) |
| error = -EFAULT; |
| else |
| error = count - buf.count; |
| } |
| |
| out_putf: |
| fput(file); |
| out: |
| return error; |
| } |
| |
| asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp, |
| compat_ulong_t __user *outp, compat_ulong_t __user *exp, |
| compat_uptr_t tvp_x) |
| { |
| /* sign extend n */ |
| return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x)); |
| } |
| |
| int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf) |
| { |
| long err; |
| |
| if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) || |
| !new_valid_dev(stat->rdev)) |
| return -EOVERFLOW; |
| |
| err = access_ok(VERIFY_WRITE, statbuf, sizeof(*statbuf)) ? 0 : -EFAULT; |
| err |= __put_user(new_encode_dev(stat->dev), &statbuf->st_dev); |
| err |= __put_user(stat->ino, &statbuf->st_ino); |
| err |= __put_user(stat->mode, &statbuf->st_mode); |
| err |= __put_user(stat->nlink, &statbuf->st_nlink); |
| err |= __put_user(stat->uid, &statbuf->st_uid); |
| err |= __put_user(stat->gid, &statbuf->st_gid); |
| err |= __put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev); |
| err |= __put_user(stat->size, &statbuf->st_size); |
| err |= __put_user(stat->atime.tv_sec, &statbuf->st_atime); |
| err |= __put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec); |
| err |= __put_user(stat->mtime.tv_sec, &statbuf->st_mtime); |
| err |= __put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec); |
| err |= __put_user(stat->ctime.tv_sec, &statbuf->st_ctime); |
| err |= __put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec); |
| err |= __put_user(stat->blksize, &statbuf->st_blksize); |
| err |= __put_user(stat->blocks, &statbuf->st_blocks); |
| err |= __put_user(0, &statbuf->__unused4[0]); |
| err |= __put_user(0, &statbuf->__unused4[1]); |
| |
| return err; |
| } |
| |
| /* 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) |
| { |
| return sys_sysfs((int)option, arg1, arg2); |
| } |
| |
| /* Handle adjtimex compatibility. */ |
| struct timex32 { |
| u32 modes; |
| s32 offset, freq, maxerror, esterror; |
| s32 status, constant, precision, tolerance; |
| struct compat_timeval time; |
| s32 tick; |
| s32 ppsfreq, jitter, shift, stabil; |
| s32 jitcnt, calcnt, errcnt, stbcnt; |
| s32 :32; s32 :32; s32 :32; s32 :32; |
| s32 :32; s32 :32; s32 :32; s32 :32; |
| s32 :32; s32 :32; s32 :32; s32 :32; |
| }; |
| |
| extern int do_adjtimex(struct timex *); |
| extern void ppc_adjtimex(void); |
| |
| asmlinkage long sys32_adjtimex(struct timex32 __user *utp) |
| { |
| struct timex txc; |
| int ret; |
| |
| memset(&txc, 0, sizeof(struct timex)); |
| |
| if(get_user(txc.modes, &utp->modes) || |
| __get_user(txc.offset, &utp->offset) || |
| __get_user(txc.freq, &utp->freq) || |
| __get_user(txc.maxerror, &utp->maxerror) || |
| __get_user(txc.esterror, &utp->esterror) || |
| __get_user(txc.status, &utp->status) || |
| __get_user(txc.constant, &utp->constant) || |
| __get_user(txc.precision, &utp->precision) || |
| __get_user(txc.tolerance, &utp->tolerance) || |
| __get_user(txc.time.tv_sec, &utp->time.tv_sec) || |
| __get_user(txc.time.tv_usec, &utp->time.tv_usec) || |
| __get_user(txc.tick, &utp->tick) || |
| __get_user(txc.ppsfreq, &utp->ppsfreq) || |
| __get_user(txc.jitter, &utp->jitter) || |
| __get_user(txc.shift, &utp->shift) || |
| __get_user(txc.stabil, &utp->stabil) || |
| __get_user(txc.jitcnt, &utp->jitcnt) || |
| __get_user(txc.calcnt, &utp->calcnt) || |
| __get_user(txc.errcnt, &utp->errcnt) || |
| __get_user(txc.stbcnt, &utp->stbcnt)) |
| return -EFAULT; |
| |
| ret = do_adjtimex(&txc); |
| |
| /* 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; |
| } |
| |
| asmlinkage long sys32_pause(void) |
| { |
| current->state = TASK_INTERRUPTIBLE; |
| schedule(); |
| |
| return -ERESTARTNOHAND; |
| } |
| |
| static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i) |
| { |
| long usec; |
| |
| if (!access_ok(VERIFY_READ, i, sizeof(*i))) |
| return -EFAULT; |
| if (__get_user(o->tv_sec, &i->tv_sec)) |
| return -EFAULT; |
| if (__get_user(usec, &i->tv_usec)) |
| return -EFAULT; |
| o->tv_nsec = usec * 1000; |
| return 0; |
| } |
| |
| static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i) |
| { |
| return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || |
| (__put_user(i->tv_sec, &o->tv_sec) | |
| __put_user(i->tv_usec, &o->tv_usec))); |
| } |
| |
| 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(int)-sizeof(int)]; |
| }; |
| |
| asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info) |
| { |
| struct sysinfo s; |
| int ret, err; |
| int bitcount=0; |
| mm_segment_t old_fs = get_fs (); |
| |
| /* The __user cast is valid due to set_fs() */ |
| set_fs (KERNEL_DS); |
| ret = sys_sysinfo((struct sysinfo __user *)&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; |
| |
| return ret; |
| } |
| |
| |
| |
| |
| /* Translations due to time_t size differences. Which affects all |
| sorts of things, like timeval and itimerval. */ |
| extern struct timezone sys_tz; |
| |
| asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz) |
| { |
| if (tv) { |
| struct timeval ktv; |
| do_gettimeofday(&ktv); |
| if (put_tv32(tv, &ktv)) |
| return -EFAULT; |
| } |
| if (tz) { |
| if (copy_to_user(tz, &sys_tz, sizeof(sys_tz))) |
| return -EFAULT; |
| } |
| |
| return 0; |
| } |
| |
| |
| |
| asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz) |
| { |
| struct timespec kts; |
| struct timezone ktz; |
| |
| if (tv) { |
| if (get_ts32(&kts, tv)) |
| return -EFAULT; |
| } |
| if (tz) { |
| if (copy_from_user(&ktz, tz, sizeof(ktz))) |
| return -EFAULT; |
| } |
| |
| return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL); |
| } |
| |
| #ifdef CONFIG_SYSVIPC |
| long sys32_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, |
| u32 fifth) |
| { |
| int version; |
| |
| version = call >> 16; /* hack for backward compatibility */ |
| call &= 0xffff; |
| |
| switch (call) { |
| |
| case SEMTIMEDOP: |
| if (fifth) |
| /* sign extend semid */ |
| return compat_sys_semtimedop((int)first, |
| compat_ptr(ptr), second, |
| compat_ptr(fifth)); |
| /* else fall through for normal semop() */ |
| case SEMOP: |
| /* struct sembuf is the same on 32 and 64bit :)) */ |
| /* sign extend semid */ |
| return sys_semtimedop((int)first, compat_ptr(ptr), second, |
| NULL); |
| case SEMGET: |
| /* sign extend key, nsems */ |
| return sys_semget((int)first, (int)second, third); |
| case SEMCTL: |
| /* sign extend semid, semnum */ |
| return compat_sys_semctl((int)first, (int)second, third, |
| compat_ptr(ptr)); |
| |
| case MSGSND: |
| /* sign extend msqid */ |
| return compat_sys_msgsnd((int)first, (int)second, third, |
| compat_ptr(ptr)); |
| case MSGRCV: |
| /* sign extend msqid, msgtyp */ |
| return compat_sys_msgrcv((int)first, second, (int)fifth, |
| third, version, compat_ptr(ptr)); |
| case MSGGET: |
| /* sign extend key */ |
| return sys_msgget((int)first, second); |
| case MSGCTL: |
| /* sign extend msqid */ |
| return compat_sys_msgctl((int)first, second, compat_ptr(ptr)); |
| |
| case SHMAT: |
| /* sign extend shmid */ |
| return compat_sys_shmat((int)first, second, third, version, |
| compat_ptr(ptr)); |
| case SHMDT: |
| return sys_shmdt(compat_ptr(ptr)); |
| case SHMGET: |
| /* sign extend key_t */ |
| return sys_shmget((int)first, second, third); |
| case SHMCTL: |
| /* sign extend shmid */ |
| return compat_sys_shmctl((int)first, second, compat_ptr(ptr)); |
| |
| default: |
| return -ENOSYS; |
| } |
| |
| return -ENOSYS; |
| } |
| #endif |
| |
| /* 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, compat_off_t __user * offset, u32 count) |
| { |
| mm_segment_t old_fs = get_fs(); |
| int ret; |
| off_t of; |
| off_t __user *up; |
| |
| if (offset && get_user(of, offset)) |
| return -EFAULT; |
| |
| /* The __user pointer cast is valid because of the set_fs() */ |
| set_fs(KERNEL_DS); |
| up = offset ? (off_t __user *) &of : NULL; |
| ret = sys_sendfile((int)out_fd, (int)in_fd, up, count); |
| set_fs(old_fs); |
| |
| if (offset && put_user(of, offset)) |
| return -EFAULT; |
| |
| return ret; |
| } |
| |
| asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count) |
| { |
| mm_segment_t old_fs = get_fs(); |
| int ret; |
| loff_t lof; |
| loff_t __user *up; |
| |
| if (offset && get_user(lof, offset)) |
| return -EFAULT; |
| |
| /* The __user pointer cast is valid because of the set_fs() */ |
| set_fs(KERNEL_DS); |
| up = offset ? (loff_t __user *) &lof : NULL; |
| ret = sys_sendfile64(out_fd, in_fd, up, count); |
| set_fs(old_fs); |
| |
| if (offset && put_user(lof, offset)) |
| return -EFAULT; |
| |
| return ret; |
| } |
| |
| 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 __user *) a0); |
| error = PTR_ERR(filename); |
| if (IS_ERR(filename)) |
| goto out; |
| flush_fp_to_thread(current); |
| flush_altivec_to_thread(current); |
| |
| error = compat_do_execve(filename, compat_ptr(a1), compat_ptr(a2), regs); |
| |
| if (error == 0) { |
| task_lock(current); |
| current->ptrace &= ~PT_DTRACE; |
| task_unlock(current); |
| } |
| 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); |
| |
| /* |
| * If we exec out of a kernel thread then thread.regs will not be |
| * set. Do it now. |
| */ |
| if (!current->thread.regs) { |
| unsigned long childregs = (unsigned long)current->thread_info + |
| THREAD_SIZE; |
| childregs -= sizeof(struct pt_regs); |
| current->thread.regs = (struct pt_regs *)childregs; |
| } |
| |
| /* |
| * ELF_PLAT_INIT already clears all registers but it also sets r2. |
| * So just clear r2 here. |
| */ |
| regs->gpr[2] = 0; |
| |
| 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 /* CONFIG_SMP */ |
| current->thread.fpscr = 0; |
| memset(current->thread.fpr, 0, sizeof(current->thread.fpr)); |
| #ifdef CONFIG_ALTIVEC |
| #ifndef CONFIG_SMP |
| if (last_task_used_altivec == current) |
| last_task_used_altivec = 0; |
| #endif /* CONFIG_SMP */ |
| memset(current->thread.vr, 0, sizeof(current->thread.vr)); |
| current->thread.vscr.u[0] = 0; |
| current->thread.vscr.u[1] = 0; |
| current->thread.vscr.u[2] = 0; |
| current->thread.vscr.u[3] = 0x00010000; /* Java mode disabled */ |
| current->thread.vrsave = 0; |
| current->thread.used_vr = 0; |
| #endif /* CONFIG_ALTIVEC */ |
| } |
| |
| /* 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) |
| { |
| return sys_prctl((int)option, |
| (unsigned long) arg2, |
| (unsigned long) arg3, |
| (unsigned long) arg4, |
| (unsigned long) arg5); |
| } |
| |
| /* 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_rr_get_interval(u32 pid, struct compat_timespec __user *interval) |
| { |
| struct timespec t; |
| int ret; |
| mm_segment_t old_fs = get_fs (); |
| |
| /* The __user pointer cast is valid because of the set_fs() */ |
| set_fs (KERNEL_DS); |
| ret = sys_sched_rr_get_interval((int)pid, (struct timespec __user *) &t); |
| set_fs (old_fs); |
| if (put_compat_timespec(&t, interval)) |
| return -EFAULT; |
| return ret; |
| } |
| |
| asmlinkage int sys32_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf) |
| { |
| return sys_pciconfig_read((unsigned long) bus, |
| (unsigned long) dfn, |
| (unsigned long) off, |
| (unsigned long) len, |
| compat_ptr(ubuf)); |
| } |
| |
| asmlinkage int sys32_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf) |
| { |
| return sys_pciconfig_write((unsigned long) bus, |
| (unsigned long) dfn, |
| (unsigned long) off, |
| (unsigned long) len, |
| compat_ptr(ubuf)); |
| } |
| |
| #define IOBASE_BRIDGE_NUMBER 0 |
| #define IOBASE_MEMORY 1 |
| #define IOBASE_IO 2 |
| #define IOBASE_ISA_IO 3 |
| #define IOBASE_ISA_MEM 4 |
| |
| asmlinkage int sys32_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn) |
| { |
| #ifdef CONFIG_PCI |
| struct pci_controller* hose; |
| struct list_head *ln; |
| struct pci_bus *bus = NULL; |
| struct device_node *hose_node; |
| |
| /* Argh ! Please forgive me for that hack, but that's the |
| * simplest way to get existing XFree to not lockup on some |
| * G5 machines... So when something asks for bus 0 io base |
| * (bus 0 is HT root), we return the AGP one instead. |
| */ |
| #ifdef CONFIG_PPC_PMAC |
| if (systemcfg->platform == PLATFORM_POWERMAC && |
| machine_is_compatible("MacRISC4")) |
| if (in_bus == 0) |
| in_bus = 0xf0; |
| #endif /* CONFIG_PPC_PMAC */ |
| |
| /* That syscall isn't quite compatible with PCI domains, but it's |
| * used on pre-domains setup. We return the first match |
| */ |
| |
| for (ln = pci_root_buses.next; ln != &pci_root_buses; ln = ln->next) { |
| bus = pci_bus_b(ln); |
| if (in_bus >= bus->number && in_bus < (bus->number + bus->subordinate)) |
| break; |
| bus = NULL; |
| } |
| if (bus == NULL || bus->sysdata == NULL) |
| return -ENODEV; |
| |
| hose_node = (struct device_node *)bus->sysdata; |
| hose = hose_node->phb; |
| |
| switch (which) { |
| case IOBASE_BRIDGE_NUMBER: |
| return (long)hose->first_busno; |
| case IOBASE_MEMORY: |
| return (long)hose->pci_mem_offset; |
| case IOBASE_IO: |
| return (long)hose->io_base_phys; |
| case IOBASE_ISA_IO: |
| return (long)isa_io_base; |
| case IOBASE_ISA_MEM: |
| return -EINVAL; |
| } |
| #endif /* CONFIG_PCI */ |
| return -EOPNOTSUPP; |
| } |
| |
| |
| /* 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 __user * filename, u32 mode) |
| { |
| return sys_access(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_creat(const char __user * pathname, u32 mode) |
| { |
| return sys_creat(pathname, (int)mode); |
| } |
| |
| |
| /* 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 __user * stat_addr, u32 options) |
| { |
| return sys_waitpid((int)pid, stat_addr, (int)options); |
| } |
| |
| |
| /* 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 __user *grouplist) |
| { |
| return sys_getgroups((int)gidsetsize, grouplist); |
| } |
| |
| |
| /* 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); |
| } |
| |
| |
| |
| /* 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); |
| } |
| |
| |
| /* 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); |
| } |
| |
| |
| /* 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 __user * pathname, u32 mode) |
| { |
| return sys_mkdir(pathname, (int)mode); |
| } |
| |
| long sys32_nice(u32 increment) |
| { |
| /* sign extend increment */ |
| return sys_nice((int)increment); |
| } |
| |
| off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin) |
| { |
| /* sign extend n */ |
| return sys_lseek(fd, (int)offset, origin); |
| } |
| |
| /* 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 __user * path, char __user * buf, u32 bufsiz) |
| { |
| return sys_readlink(path, buf, (int)bufsiz); |
| } |
| |
| /* 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); |
| } |
| |
| |
| /* 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); |
| } |
| |
| |
| /* 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 __user *param) |
| { |
| return sys_sched_getparam((int)pid, 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_getscheduler(u32 pid) |
| { |
| return sys_sched_getscheduler((int)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_setparam(u32 pid, struct sched_param __user *param) |
| { |
| return sys_sched_setparam((int)pid, 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 __user *param) |
| { |
| return sys_sched_setscheduler((int)pid, (int)policy, param); |
| } |
| |
| |
| /* 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 __user *name, u32 len) |
| { |
| return sys_setdomainname(name, (int)len); |
| } |
| |
| |
| /* 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 __user *grouplist) |
| { |
| return sys_setgroups((int)gidsetsize, grouplist); |
| } |
| |
| |
| asmlinkage long sys32_sethostname(char __user *name, u32 len) |
| { |
| /* sign extend len */ |
| return sys_sethostname(name, (int)len); |
| } |
| |
| |
| /* 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); |
| } |
| |
| long sys32_getpriority(u32 which, u32 who) |
| { |
| /* sign extend which and who */ |
| return sys_getpriority((int)which, (int)who); |
| } |
| |
| long sys32_setpriority(u32 which, u32 who, u32 niceval) |
| { |
| /* sign extend which, who and niceval */ |
| return sys_setpriority((int)which, (int)who, (int)niceval); |
| } |
| |
| long sys32_ioprio_get(u32 which, u32 who) |
| { |
| /* sign extend which and who */ |
| return sys_ioprio_get((int)which, (int)who); |
| } |
| |
| long sys32_ioprio_set(u32 which, u32 who, u32 ioprio) |
| { |
| /* sign extend which, who and ioprio */ |
| return sys_ioprio_set((int)which, (int)who, (int)ioprio); |
| } |
| |
| /* 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); |
| } |
| |
| asmlinkage long sys32_syslog(u32 type, char __user * buf, u32 len) |
| { |
| /* sign extend len */ |
| return sys_syslog(type, buf, (int)len); |
| } |
| |
| |
| /* 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); |
| } |
| |
| #ifdef CONFIG_SYSCTL |
| struct __sysctl_args32 { |
| u32 name; |
| int nlen; |
| u32 oldval; |
| u32 oldlenp; |
| u32 newval; |
| u32 newlen; |
| u32 __unused[4]; |
| }; |
| |
| asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args) |
| { |
| struct __sysctl_args32 tmp; |
| int error; |
| size_t oldlen; |
| size_t __user *oldlenp = NULL; |
| unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7; |
| |
| if (copy_from_user(&tmp, args, sizeof(tmp))) |
| return -EFAULT; |
| |
| 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. */ |
| oldlenp = (size_t __user *)addr; |
| if (get_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)) || |
| put_user(oldlen, oldlenp)) |
| return -EFAULT; |
| } |
| |
| lock_kernel(); |
| error = do_sysctl(compat_ptr(tmp.name), tmp.nlen, |
| compat_ptr(tmp.oldval), oldlenp, |
| compat_ptr(tmp.newval), tmp.newlen); |
| unlock_kernel(); |
| if (oldlenp) { |
| if (!error) { |
| if (get_user(oldlen, oldlenp) || |
| put_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp))) |
| error = -EFAULT; |
| } |
| copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)); |
| } |
| return error; |
| } |
| #endif |
| |
| asmlinkage int sys32_uname(struct old_utsname __user * name) |
| { |
| int err = 0; |
| |
| down_read(&uts_sem); |
| if (copy_to_user(name, &system_utsname, sizeof(*name))) |
| err = -EFAULT; |
| up_read(&uts_sem); |
| if (!err && personality(current->personality) == PER_LINUX32) { |
| /* change "ppc64" to "ppc" */ |
| if (__put_user(0, name->machine + 3) |
| || __put_user(0, name->machine + 4)) |
| err = -EFAULT; |
| } |
| return err; |
| } |
| |
| asmlinkage int sys32_olduname(struct oldold_utsname __user * name) |
| { |
| int error; |
| |
| if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname))) |
| return -EFAULT; |
| |
| down_read(&uts_sem); |
| error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN); |
| error |= __put_user(0,name->sysname+__OLD_UTS_LEN); |
| error |= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN); |
| error |= __put_user(0,name->nodename+__OLD_UTS_LEN); |
| error |= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN); |
| error |= __put_user(0,name->release+__OLD_UTS_LEN); |
| error |= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN); |
| error |= __put_user(0,name->version+__OLD_UTS_LEN); |
| error |= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN); |
| error |= __put_user(0,name->machine+__OLD_UTS_LEN); |
| if (personality(current->personality) == PER_LINUX32) { |
| /* change "ppc64" to "ppc" */ |
| error |= __put_user(0, name->machine + 3); |
| error |= __put_user(0, name->machine + 4); |
| } |
| |
| up_read(&uts_sem); |
| |
| error = error ? -EFAULT : 0; |
| |
| return error; |
| } |
| |
| 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); |
| } |
| |
| int get_compat_timeval(struct timeval *tv, struct compat_timeval __user *ctv) |
| { |
| return (!access_ok(VERIFY_READ, ctv, sizeof(*ctv)) || |
| __get_user(tv->tv_sec, &ctv->tv_sec) || |
| __get_user(tv->tv_usec, &ctv->tv_usec)) ? -EFAULT : 0; |
| } |
| |
| asmlinkage long sys32_utimes(char __user *filename, struct compat_timeval __user *tvs) |
| { |
| struct timeval ktvs[2], *ptr; |
| |
| ptr = NULL; |
| if (tvs) { |
| if (get_compat_timeval(&ktvs[0], &tvs[0]) || |
| get_compat_timeval(&ktvs[1], &tvs[1])) |
| return -EFAULT; |
| ptr = ktvs; |
| } |
| |
| return do_utimes(filename, ptr); |
| } |
| |
| long sys32_tgkill(u32 tgid, u32 pid, int sig) |
| { |
| /* sign extend tgid, pid */ |
| return sys_tgkill((int)tgid, (int)pid, sig); |
| } |
| |
| /* |
| * long long munging: |
| * The 32 bit ABI passes long longs in an odd even register pair. |
| */ |
| |
| compat_ssize_t sys32_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, |
| u32 reg6, u32 poshi, u32 poslo) |
| { |
| return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); |
| } |
| |
| compat_ssize_t sys32_pwrite64(unsigned int fd, char __user *ubuf, compat_size_t count, |
| u32 reg6, u32 poshi, u32 poslo) |
| { |
| return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); |
| } |
| |
| compat_ssize_t sys32_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count) |
| { |
| return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count); |
| } |
| |
| asmlinkage int sys32_truncate64(const char __user * path, u32 reg4, |
| unsigned long high, unsigned long low) |
| { |
| return sys_truncate(path, (high << 32) | low); |
| } |
| |
| asmlinkage int sys32_ftruncate64(unsigned int fd, u32 reg4, unsigned long high, |
| unsigned long low) |
| { |
| return sys_ftruncate(fd, (high << 32) | low); |
| } |
| |
| long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf, |
| size_t len) |
| { |
| return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low, |
| buf, len); |
| } |
| |
| long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low, |
| size_t len, int advice) |
| { |
| return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len, |
| advice); |
| } |
| |
| long ppc32_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low, |
| u32 len_high, u32 len_low) |
| { |
| return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, |
| (u64)len_high << 32 | len_low, advice); |
| } |
| |
| long ppc32_timer_create(clockid_t clock, |
| struct compat_sigevent __user *ev32, |
| timer_t __user *timer_id) |
| { |
| sigevent_t event; |
| timer_t t; |
| long err; |
| mm_segment_t savefs; |
| |
| if (ev32 == NULL) |
| return sys_timer_create(clock, NULL, timer_id); |
| |
| if (get_compat_sigevent(&event, ev32)) |
| return -EFAULT; |
| |
| if (!access_ok(VERIFY_WRITE, timer_id, sizeof(timer_t))) |
| return -EFAULT; |
| |
| savefs = get_fs(); |
| set_fs(KERNEL_DS); |
| /* The __user pointer casts are valid due to the set_fs() */ |
| err = sys_timer_create(clock, |
| (sigevent_t __user *) &event, |
| (timer_t __user *) &t); |
| set_fs(savefs); |
| |
| if (err == 0) |
| err = __put_user(t, timer_id); |
| |
| return err; |
| } |
| |
| asmlinkage long sys32_add_key(const char __user *_type, |
| const char __user *_description, |
| const void __user *_payload, |
| u32 plen, |
| u32 ringid) |
| { |
| return sys_add_key(_type, _description, _payload, plen, ringid); |
| } |
| |
| asmlinkage long sys32_request_key(const char __user *_type, |
| const char __user *_description, |
| const char __user *_callout_info, |
| u32 destringid) |
| { |
| return sys_request_key(_type, _description, _callout_info, destringid); |
| } |
| |