/* * 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/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/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/ppc-pci.h>#include <asm/syscalls.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, u64 ino, unsigned int d_type){ struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf; struct old_linux_dirent32 __user * dirent; ino_t d_ino; if (buf->count) return -EINVAL; d_ino = ino; if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) return -EOVERFLOW; buf->count++; dirent = buf->dirent; put_user(d_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;} 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){ compat_ino_t ino; long err; if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) || !new_valid_dev(stat->rdev)) return -EOVERFLOW; ino = stat->ino; if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino) 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(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 compat_sys_sysfs(u32 option, u32 arg1, u32 arg2){ return sys_sysfs((int)option, arg1, arg2);} asmlinkage long compat_sys_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)));} /* Translations due to time_t size differences. Which affects all sorts of things, like timeval and itimerval. */extern struct timezone sys_tz; asmlinkage long compat_sys_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 compat_sys_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_SYSVIPClong compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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;} /* 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 compat_sys_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 compat_sys_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;} /* 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 compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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)Lines 1–500 of 816. 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/* * 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/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/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/ppc-pci.h> #include <asm/syscalls.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, u64 ino, unsigned int d_type) { struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf; struct old_linux_dirent32 __user * dirent; ino_t d_ino; if (buf->count) return -EINVAL; d_ino = ino; if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) return -EOVERFLOW; buf->count++; dirent = buf->dirent; put_user(d_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; } 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) { compat_ino_t ino; long err; if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) || !new_valid_dev(stat->rdev)) return -EOVERFLOW; ino = stat->ino; if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino) 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(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 compat_sys_sysfs(u32 option, u32 arg1, u32 arg2) { return sys_sysfs((int)option, arg1, arg2); } asmlinkage long compat_sys_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))); } /* Translations due to time_t size differences. Which affects all sorts of things, like timeval and itimerval. */ extern struct timezone sys_tz; asmlinkage long compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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; } /* 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 compat_sys_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 compat_sys_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; } /* 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 compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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 compat_sys_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)