X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fx86_64%2Fia32%2Fsys_ia32.c;h=c8300c902d1c9f38b95c1dff9cc8cc5f59c9a533;hb=refs%2Fheads%2Fvserver;hp=f3d4615d63db5806196119c8c16442d6b76af831;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c index f3d4615d6..c8300c902 100644 --- a/arch/x86_64/ia32/sys_ia32.c +++ b/arch/x86_64/ia32/sys_ia32.c @@ -20,7 +20,6 @@ * This should be fixed. */ -#include #include #include #include @@ -30,7 +29,6 @@ #include #include #include -#include #include #include #include @@ -62,7 +60,7 @@ #include #include #include -#include +#include #include #include #include @@ -78,6 +76,8 @@ int cp_compat_stat(struct kstat *kbuf, struct compat_stat __user *ubuf) { + compat_ino_t ino; + typeof(ubuf->st_uid) uid = 0; typeof(ubuf->st_gid) gid = 0; SET_UID(uid, kbuf->uid); @@ -86,9 +86,12 @@ int cp_compat_stat(struct kstat *kbuf, struct compat_stat __user *ubuf) return -EOVERFLOW; if (kbuf->size >= 0x7fffffff) return -EOVERFLOW; + ino = kbuf->ino; + if (sizeof(ino) < sizeof(kbuf->ino) && ino != kbuf->ino) + return -EOVERFLOW; if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct compat_stat)) || __put_user (old_encode_dev(kbuf->dev), &ubuf->st_dev) || - __put_user (kbuf->ino, &ubuf->st_ino) || + __put_user (ino, &ubuf->st_ino) || __put_user (kbuf->mode, &ubuf->st_mode) || __put_user (kbuf->nlink, &ubuf->st_nlink) || __put_user (uid, &ubuf->st_uid) || @@ -392,7 +395,9 @@ sys32_rt_sigprocmask(int how, compat_sigset_t __user *set, } } set_fs (KERNEL_DS); - ret = sys_rt_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL, + ret = sys_rt_sigprocmask(how, + set ? (sigset_t __user *)&s : NULL, + oset ? (sigset_t __user *)&s : NULL, sigsetsize); set_fs (old_fs); if (ret) return ret; @@ -431,24 +436,12 @@ put_tv32(struct compat_timeval __user *o, struct timeval *i) return err; } -extern int do_setitimer(int which, struct itimerval *, struct itimerval *); +extern unsigned int alarm_setitimer(unsigned int seconds); asmlinkage long sys32_alarm(unsigned int seconds) { - struct itimerval it_new, it_old; - unsigned int oldalarm; - - it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0; - it_new.it_value.tv_sec = seconds; - it_new.it_value.tv_usec = 0; - do_setitimer(ITIMER_REAL, &it_new, &it_old); - oldalarm = it_old.it_value.tv_sec; - /* ehhh.. We can't return 0 if we have an alarm pending.. */ - /* And we'd better return too much than too little anyway */ - if (it_old.it_value.tv_usec) - oldalarm++; - return oldalarm; + return alarm_setitimer(seconds); } /* Translations due to time_t size differences. Which affects all @@ -461,7 +454,7 @@ sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz) { if (tv) { struct timeval ktv; - do_gettimeofday(&ktv); + vx_gettimeofday(&ktv); if (put_tv32(tv, &ktv)) return -EFAULT; } @@ -522,19 +515,6 @@ sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options) return compat_sys_wait4(pid, stat_addr, options, NULL); } -int sys32_ni_syscall(int call) -{ - struct task_struct *me = current; - static char lastcomm[sizeof(me->comm)]; - - if (strncmp(lastcomm, me->comm, sizeof(lastcomm))) { - printk(KERN_INFO "IA32 syscall %d from %s not implemented\n", - call, me->comm); - strncpy(lastcomm, me->comm, sizeof(lastcomm)); - } - return -ENOSYS; -} - /* 32-bit timeval and related flotsam. */ asmlinkage long @@ -569,7 +549,7 @@ sys32_sysinfo(struct sysinfo32 __user *info) int bitcount = 0; set_fs (KERNEL_DS); - ret = sys_sysinfo(&s); + 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 @@ -617,7 +597,7 @@ sys32_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *int mm_segment_t old_fs = get_fs (); set_fs (KERNEL_DS); - ret = sys_sched_rr_get_interval(pid, &t); + ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t); set_fs (old_fs); if (put_compat_timespec(&t, interval)) return -EFAULT; @@ -633,7 +613,7 @@ sys32_rt_sigpending(compat_sigset_t __user *set, compat_size_t sigsetsize) mm_segment_t old_fs = get_fs(); set_fs (KERNEL_DS); - ret = sys_rt_sigpending(&s, sigsetsize); + ret = sys_rt_sigpending((sigset_t __user *)&s, sigsetsize); set_fs (old_fs); if (!ret) { switch (_NSIG_WORDS) { @@ -658,7 +638,7 @@ sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo) if (copy_siginfo_from_user32(&info, uinfo)) return -EFAULT; set_fs (KERNEL_DS); - ret = sys_rt_sigqueueinfo(pid, sig, &info); + ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info); set_fs (old_fs); return ret; } @@ -673,7 +653,7 @@ sys32_pause(void) } -#ifdef CONFIG_SYSCTL +#ifdef CONFIG_SYSCTL_SYSCALL struct sysctl_ia32 { unsigned int name; int nlen; @@ -694,9 +674,6 @@ sys32_sysctl(struct sysctl_ia32 __user *args32) size_t oldlen; int __user *namep; long ret; - extern int do_sysctl(int *name, int nlen, void *oldval, size_t *oldlenp, - void *newval, size_t newlen); - if (copy_from_user(&a32, args32, sizeof (a32))) return -EFAULT; @@ -720,7 +697,8 @@ sys32_sysctl(struct sysctl_ia32 __user *args32) set_fs(KERNEL_DS); lock_kernel(); - ret = do_sysctl(namep, a32.nlen, oldvalp, &oldlen, newvalp, (size_t) a32.newlen); + ret = do_sysctl(namep, a32.nlen, oldvalp, (size_t __user *)&oldlen, + newvalp, (size_t) a32.newlen); unlock_kernel(); set_fs(old_fs); @@ -771,7 +749,8 @@ sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, s32 count) return -EFAULT; set_fs(KERNEL_DS); - ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count); + ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, + count); set_fs(old_fs); if (offset && put_user(of, offset)) @@ -780,82 +759,6 @@ sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, s32 count) return ret; } -/* 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 *); - -asmlinkage long -sys32_adjtimex(struct timex32 __user *utp) -{ - struct timex txc; - int ret; - - memset(&txc, 0, sizeof(struct timex)); - - if (!access_ok(VERIFY_READ, utp, sizeof(struct timex32)) || - __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); - - if (!access_ok(VERIFY_WRITE, utp, sizeof(struct timex32)) || - __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_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) @@ -882,38 +785,40 @@ asmlinkage long sys32_mmap2(unsigned long addr, unsigned long len, asmlinkage long sys32_olduname(struct oldold_utsname __user * name) { - int error; - struct new_utsname *ptr; + int err; if (!name) return -EFAULT; - if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname))) + if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname))) return -EFAULT; down_read(&uts_sem); - - ptr = vx_new_utsname(); - error = __copy_to_user(&name->sysname,ptr->sysname,__OLD_UTS_LEN); - __put_user(0,name->sysname+__OLD_UTS_LEN); - __copy_to_user(&name->nodename,ptr->nodename,__OLD_UTS_LEN); - __put_user(0,name->nodename+__OLD_UTS_LEN); - __copy_to_user(&name->release,ptr->release,__OLD_UTS_LEN); - __put_user(0,name->release+__OLD_UTS_LEN); - __copy_to_user(&name->version,ptr->version,__OLD_UTS_LEN); - __put_user(0,name->version+__OLD_UTS_LEN); - { - char *arch = "x86_64"; - if (personality(current->personality) == PER_LINUX32) - arch = "i686"; + + err = __copy_to_user(&name->sysname,&utsname()->sysname, + __OLD_UTS_LEN); + err |= __put_user(0,name->sysname+__OLD_UTS_LEN); + err |= __copy_to_user(&name->nodename,&utsname()->nodename, + __OLD_UTS_LEN); + err |= __put_user(0,name->nodename+__OLD_UTS_LEN); + err |= __copy_to_user(&name->release,&utsname()->release, + __OLD_UTS_LEN); + err |= __put_user(0,name->release+__OLD_UTS_LEN); + err |= __copy_to_user(&name->version,&utsname()->version, + __OLD_UTS_LEN); + err |= __put_user(0,name->version+__OLD_UTS_LEN); + { + char *arch = "x86_64"; + if (personality(current->personality) == PER_LINUX32) + arch = "i686"; - __copy_to_user(&name->machine,arch,strlen(arch)+1); - } - - up_read(&uts_sem); - - error = error ? -EFAULT : 0; - - return error; + err |= __copy_to_user(&name->machine, arch, strlen(arch)+1); + } + + up_read(&uts_sem); + + err = err ? -EFAULT : 0; + + return err; } long sys32_uname(struct old_utsname __user * name) @@ -922,7 +827,7 @@ long sys32_uname(struct old_utsname __user * name) if (!name) return -EFAULT; down_read(&uts_sem); - err=copy_to_user(name, vx_new_utsname(), sizeof (*name)); + err = copy_to_user(name, utsname(), sizeof (*name)); up_read(&uts_sem); if (personality(current->personality) == PER_LINUX32) err |= copy_to_user(&name->machine, "i686", 5); @@ -937,7 +842,7 @@ long sys32_ustat(unsigned dev, struct ustat32 __user *u32p) seg = get_fs(); set_fs(KERNEL_DS); - ret = sys_ustat(dev,&u); + ret = sys_ustat(dev, (struct ustat __user *)&u); set_fs(seg); if (ret >= 0) { if (!access_ok(VERIFY_WRITE,u32p,sizeof(struct ustat32)) || @@ -961,11 +866,6 @@ asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv, if (IS_ERR(filename)) return error; error = compat_do_execve(filename, argv, envp, regs); - if (error == 0) { - task_lock(current); - current->ptrace &= ~PT_DTRACE; - task_unlock(current); - } putname(filename); return error; } @@ -1008,7 +908,7 @@ long sys32_vm86_warning(void) struct task_struct *me = current; static char lastcomm[sizeof(me->comm)]; if (strncmp(lastcomm, me->comm, sizeof(lastcomm))) { - printk(KERN_INFO "%s: vm86 mode not supported on 64 bit kernel\n", + compat_printk(KERN_INFO "%s: vm86 mode not supported on 64 bit kernel\n", me->comm); strncpy(lastcomm, me->comm, sizeof(lastcomm)); } @@ -1021,13 +921,3 @@ long sys32_lookup_dcookie(u32 addr_low, u32 addr_high, return sys_lookup_dcookie(((u64)addr_high << 32) | addr_low, buf, len); } -static int __init ia32_init (void) -{ - printk("IA32 emulation $Id: sys_ia32.c,v 1.32 2002/03/24 13:02:28 ak Exp $\n"); - return 0; -} - -__initcall(ia32_init); - -extern unsigned long ia32_sys_call_table[]; -EXPORT_SYMBOL(ia32_sys_call_table);