11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * linux/arch/alpha/kernel/osf_sys.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 1995 Linus Torvalds 51da177e4SLinus Torvalds */ 61da177e4SLinus Torvalds 71da177e4SLinus Torvalds /* 81da177e4SLinus Torvalds * This file handles some of the stranger OSF/1 system call interfaces. 91da177e4SLinus Torvalds * Some of the system calls expect a non-C calling standard, others have 101da177e4SLinus Torvalds * special parameter blocks.. 111da177e4SLinus Torvalds */ 121da177e4SLinus Torvalds 131da177e4SLinus Torvalds #include <linux/errno.h> 141da177e4SLinus Torvalds #include <linux/sched.h> 151da177e4SLinus Torvalds #include <linux/kernel.h> 161da177e4SLinus Torvalds #include <linux/mm.h> 171da177e4SLinus Torvalds #include <linux/smp.h> 181da177e4SLinus Torvalds #include <linux/stddef.h> 191da177e4SLinus Torvalds #include <linux/syscalls.h> 201da177e4SLinus Torvalds #include <linux/unistd.h> 211da177e4SLinus Torvalds #include <linux/ptrace.h> 221da177e4SLinus Torvalds #include <linux/user.h> 231da177e4SLinus Torvalds #include <linux/utsname.h> 241da177e4SLinus Torvalds #include <linux/time.h> 251da177e4SLinus Torvalds #include <linux/timex.h> 261da177e4SLinus Torvalds #include <linux/major.h> 271da177e4SLinus Torvalds #include <linux/stat.h> 281da177e4SLinus Torvalds #include <linux/mman.h> 291da177e4SLinus Torvalds #include <linux/shm.h> 301da177e4SLinus Torvalds #include <linux/poll.h> 311da177e4SLinus Torvalds #include <linux/file.h> 321da177e4SLinus Torvalds #include <linux/types.h> 331da177e4SLinus Torvalds #include <linux/ipc.h> 341da177e4SLinus Torvalds #include <linux/namei.h> 351da177e4SLinus Torvalds #include <linux/uio.h> 361da177e4SLinus Torvalds #include <linux/vfs.h> 374fb3a538SDipankar Sarma #include <linux/rcupdate.h> 385a0e3ad6STejun Heo #include <linux/slab.h> 391da177e4SLinus Torvalds 401da177e4SLinus Torvalds #include <asm/fpu.h> 411da177e4SLinus Torvalds #include <asm/io.h> 421da177e4SLinus Torvalds #include <asm/uaccess.h> 431da177e4SLinus Torvalds #include <asm/sysinfo.h> 442df7a7d1SSergei Trofimovich #include <asm/thread_info.h> 451da177e4SLinus Torvalds #include <asm/hwrpb.h> 461da177e4SLinus Torvalds #include <asm/processor.h> 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds /* 491da177e4SLinus Torvalds * Brk needs to return an error. Still support Linux's brk(0) query idiom, 501da177e4SLinus Torvalds * which OSF programs just shouldn't be doing. We're still not quite 511da177e4SLinus Torvalds * identical to OSF as we don't return 0 on success, but doing otherwise 521da177e4SLinus Torvalds * would require changes to libc. Hopefully this is good enough. 531da177e4SLinus Torvalds */ 54e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(osf_brk, unsigned long, brk) 551da177e4SLinus Torvalds { 561da177e4SLinus Torvalds unsigned long retval = sys_brk(brk); 571da177e4SLinus Torvalds if (brk && brk != retval) 581da177e4SLinus Torvalds retval = -ENOMEM; 591da177e4SLinus Torvalds return retval; 601da177e4SLinus Torvalds } 611da177e4SLinus Torvalds 621da177e4SLinus Torvalds /* 631da177e4SLinus Torvalds * This is pure guess-work.. 641da177e4SLinus Torvalds */ 65e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start, 66e5d9a90cSIvan Kokshaysky unsigned long, text_len, unsigned long, bss_start, 67e5d9a90cSIvan Kokshaysky unsigned long, bss_len) 681da177e4SLinus Torvalds { 691da177e4SLinus Torvalds struct mm_struct *mm; 701da177e4SLinus Torvalds 711da177e4SLinus Torvalds mm = current->mm; 721da177e4SLinus Torvalds mm->end_code = bss_start + bss_len; 732444e56bSIvan Kokshaysky mm->start_brk = bss_start + bss_len; 741da177e4SLinus Torvalds mm->brk = bss_start + bss_len; 751da177e4SLinus Torvalds #if 0 761da177e4SLinus Torvalds printk("set_program_attributes(%lx %lx %lx %lx)\n", 771da177e4SLinus Torvalds text_start, text_len, bss_start, bss_len); 781da177e4SLinus Torvalds #endif 791da177e4SLinus Torvalds return 0; 801da177e4SLinus Torvalds } 811da177e4SLinus Torvalds 821da177e4SLinus Torvalds /* 831da177e4SLinus Torvalds * OSF/1 directory handling functions... 841da177e4SLinus Torvalds * 851da177e4SLinus Torvalds * The "getdents()" interface is much more sane: the "basep" stuff is 861da177e4SLinus Torvalds * braindamage (it can't really handle filesystems where the directory 871da177e4SLinus Torvalds * offset differences aren't the same as "d_reclen"). 881da177e4SLinus Torvalds */ 891da177e4SLinus Torvalds #define NAME_OFFSET offsetof (struct osf_dirent, d_name) 901da177e4SLinus Torvalds 911da177e4SLinus Torvalds struct osf_dirent { 921da177e4SLinus Torvalds unsigned int d_ino; 931da177e4SLinus Torvalds unsigned short d_reclen; 941da177e4SLinus Torvalds unsigned short d_namlen; 951da177e4SLinus Torvalds char d_name[1]; 961da177e4SLinus Torvalds }; 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds struct osf_dirent_callback { 995c0ba4e0SAl Viro struct dir_context ctx; 1001da177e4SLinus Torvalds struct osf_dirent __user *dirent; 1011da177e4SLinus Torvalds long __user *basep; 1021da177e4SLinus Torvalds unsigned int count; 1031da177e4SLinus Torvalds int error; 1041da177e4SLinus Torvalds }; 1051da177e4SLinus Torvalds 1061da177e4SLinus Torvalds static int 107ac7576f4SMiklos Szeredi osf_filldir(struct dir_context *ctx, const char *name, int namlen, 108ac7576f4SMiklos Szeredi loff_t offset, u64 ino, unsigned int d_type) 1091da177e4SLinus Torvalds { 1101da177e4SLinus Torvalds struct osf_dirent __user *dirent; 111ac7576f4SMiklos Szeredi struct osf_dirent_callback *buf = 112ac7576f4SMiklos Szeredi container_of(ctx, struct osf_dirent_callback, ctx); 113180e53a7SMilind Arun Choudhary unsigned int reclen = ALIGN(NAME_OFFSET + namlen + 1, sizeof(u32)); 114afefdbb2SDavid Howells unsigned int d_ino; 1151da177e4SLinus Torvalds 1161da177e4SLinus Torvalds buf->error = -EINVAL; /* only used if we fail */ 1171da177e4SLinus Torvalds if (reclen > buf->count) 1181da177e4SLinus Torvalds return -EINVAL; 119afefdbb2SDavid Howells d_ino = ino; 120645e68edSAl Viro if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) { 121645e68edSAl Viro buf->error = -EOVERFLOW; 122afefdbb2SDavid Howells return -EOVERFLOW; 123645e68edSAl Viro } 1241da177e4SLinus Torvalds if (buf->basep) { 1251da177e4SLinus Torvalds if (put_user(offset, buf->basep)) 126645e68edSAl Viro goto Efault; 1271da177e4SLinus Torvalds buf->basep = NULL; 1281da177e4SLinus Torvalds } 1291da177e4SLinus Torvalds dirent = buf->dirent; 130645e68edSAl Viro if (put_user(d_ino, &dirent->d_ino) || 131645e68edSAl Viro put_user(namlen, &dirent->d_namlen) || 132645e68edSAl Viro put_user(reclen, &dirent->d_reclen) || 133645e68edSAl Viro copy_to_user(dirent->d_name, name, namlen) || 1341da177e4SLinus Torvalds put_user(0, dirent->d_name + namlen)) 135645e68edSAl Viro goto Efault; 1361da177e4SLinus Torvalds dirent = (void __user *)dirent + reclen; 1371da177e4SLinus Torvalds buf->dirent = dirent; 1381da177e4SLinus Torvalds buf->count -= reclen; 1391da177e4SLinus Torvalds return 0; 140645e68edSAl Viro Efault: 141645e68edSAl Viro buf->error = -EFAULT; 142645e68edSAl Viro return -EFAULT; 1431da177e4SLinus Torvalds } 1441da177e4SLinus Torvalds 145e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd, 146e5d9a90cSIvan Kokshaysky struct osf_dirent __user *, dirent, unsigned int, count, 147e5d9a90cSIvan Kokshaysky long __user *, basep) 1481da177e4SLinus Torvalds { 1491da177e4SLinus Torvalds int error; 1502903ff01SAl Viro struct fd arg = fdget(fd); 151ac6614b7SAl Viro struct osf_dirent_callback buf = { 152ac6614b7SAl Viro .ctx.actor = osf_filldir, 153ac6614b7SAl Viro .dirent = dirent, 154ac6614b7SAl Viro .basep = basep, 155ac6614b7SAl Viro .count = count 156ac6614b7SAl Viro }; 1571da177e4SLinus Torvalds 1582903ff01SAl Viro if (!arg.file) 1592903ff01SAl Viro return -EBADF; 1601da177e4SLinus Torvalds 1615c0ba4e0SAl Viro error = iterate_dir(arg.file, &buf.ctx); 16253c9c5c0SAl Viro if (error >= 0) 1631da177e4SLinus Torvalds error = buf.error; 1641da177e4SLinus Torvalds if (count != buf.count) 1651da177e4SLinus Torvalds error = count - buf.count; 1661da177e4SLinus Torvalds 1672903ff01SAl Viro fdput(arg); 1681da177e4SLinus Torvalds return error; 1691da177e4SLinus Torvalds } 1701da177e4SLinus Torvalds 1711da177e4SLinus Torvalds #undef NAME_OFFSET 1721da177e4SLinus Torvalds 173e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len, 174e5d9a90cSIvan Kokshaysky unsigned long, prot, unsigned long, flags, unsigned long, fd, 175e5d9a90cSIvan Kokshaysky unsigned long, off) 1761da177e4SLinus Torvalds { 177f8b72560SAl Viro unsigned long ret = -EINVAL; 1781da177e4SLinus Torvalds 1791da177e4SLinus Torvalds #if 0 1801da177e4SLinus Torvalds if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED)) 1811da177e4SLinus Torvalds printk("%s: unimplemented OSF mmap flags %04lx\n", 1821da177e4SLinus Torvalds current->comm, flags); 1831da177e4SLinus Torvalds #endif 184f8b72560SAl Viro if ((off + PAGE_ALIGN(len)) < off) 1851da177e4SLinus Torvalds goto out; 186f8b72560SAl Viro if (off & ~PAGE_MASK) 187f8b72560SAl Viro goto out; 188f8b72560SAl Viro ret = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); 1891da177e4SLinus Torvalds out: 1901da177e4SLinus Torvalds return ret; 1911da177e4SLinus Torvalds } 1921da177e4SLinus Torvalds 1937a8bb98cSMans Rullgard struct osf_stat { 1947a8bb98cSMans Rullgard int st_dev; 1957a8bb98cSMans Rullgard int st_pad1; 1967a8bb98cSMans Rullgard unsigned st_mode; 1977a8bb98cSMans Rullgard unsigned short st_nlink; 1987a8bb98cSMans Rullgard short st_nlink_reserved; 1997a8bb98cSMans Rullgard unsigned st_uid; 2007a8bb98cSMans Rullgard unsigned st_gid; 2017a8bb98cSMans Rullgard int st_rdev; 2027a8bb98cSMans Rullgard int st_ldev; 2037a8bb98cSMans Rullgard long st_size; 2047a8bb98cSMans Rullgard int st_pad2; 2057a8bb98cSMans Rullgard int st_uatime; 2067a8bb98cSMans Rullgard int st_pad3; 2077a8bb98cSMans Rullgard int st_umtime; 2087a8bb98cSMans Rullgard int st_pad4; 2097a8bb98cSMans Rullgard int st_uctime; 2107a8bb98cSMans Rullgard int st_pad5; 2117a8bb98cSMans Rullgard int st_pad6; 2127a8bb98cSMans Rullgard unsigned st_flags; 2137a8bb98cSMans Rullgard unsigned st_gen; 2147a8bb98cSMans Rullgard long st_spare[4]; 2157a8bb98cSMans Rullgard unsigned st_ino; 2167a8bb98cSMans Rullgard int st_ino_reserved; 2177a8bb98cSMans Rullgard int st_atime; 2187a8bb98cSMans Rullgard int st_atime_reserved; 2197a8bb98cSMans Rullgard int st_mtime; 2207a8bb98cSMans Rullgard int st_mtime_reserved; 2217a8bb98cSMans Rullgard int st_ctime; 2227a8bb98cSMans Rullgard int st_ctime_reserved; 2237a8bb98cSMans Rullgard long st_blksize; 2247a8bb98cSMans Rullgard long st_blocks; 2257a8bb98cSMans Rullgard }; 2261da177e4SLinus Torvalds 2271da177e4SLinus Torvalds /* 2281da177e4SLinus Torvalds * The OSF/1 statfs structure is much larger, but this should 2291da177e4SLinus Torvalds * match the beginning, at least. 2301da177e4SLinus Torvalds */ 2311da177e4SLinus Torvalds struct osf_statfs { 2321da177e4SLinus Torvalds short f_type; 2331da177e4SLinus Torvalds short f_flags; 2341da177e4SLinus Torvalds int f_fsize; 2351da177e4SLinus Torvalds int f_bsize; 2361da177e4SLinus Torvalds int f_blocks; 2371da177e4SLinus Torvalds int f_bfree; 2381da177e4SLinus Torvalds int f_bavail; 2391da177e4SLinus Torvalds int f_files; 2401da177e4SLinus Torvalds int f_ffree; 2411da177e4SLinus Torvalds __kernel_fsid_t f_fsid; 2421da177e4SLinus Torvalds }; 2431da177e4SLinus Torvalds 2447a8bb98cSMans Rullgard struct osf_statfs64 { 2457a8bb98cSMans Rullgard short f_type; 2467a8bb98cSMans Rullgard short f_flags; 2477a8bb98cSMans Rullgard int f_pad1; 2487a8bb98cSMans Rullgard int f_pad2; 2497a8bb98cSMans Rullgard int f_pad3; 2507a8bb98cSMans Rullgard int f_pad4; 2517a8bb98cSMans Rullgard int f_pad5; 2527a8bb98cSMans Rullgard int f_pad6; 2537a8bb98cSMans Rullgard int f_pad7; 2547a8bb98cSMans Rullgard __kernel_fsid_t f_fsid; 2557a8bb98cSMans Rullgard u_short f_namemax; 2567a8bb98cSMans Rullgard short f_reserved1; 2577a8bb98cSMans Rullgard int f_spare[8]; 2587a8bb98cSMans Rullgard char f_pad8[90]; 2597a8bb98cSMans Rullgard char f_pad9[90]; 2607a8bb98cSMans Rullgard long mount_info[10]; 2617a8bb98cSMans Rullgard u_long f_flags2; 2627a8bb98cSMans Rullgard long f_spare2[14]; 2637a8bb98cSMans Rullgard long f_fsize; 2647a8bb98cSMans Rullgard long f_bsize; 2657a8bb98cSMans Rullgard long f_blocks; 2667a8bb98cSMans Rullgard long f_bfree; 2677a8bb98cSMans Rullgard long f_bavail; 2687a8bb98cSMans Rullgard long f_files; 2697a8bb98cSMans Rullgard long f_ffree; 2707a8bb98cSMans Rullgard }; 2717a8bb98cSMans Rullgard 2727a8bb98cSMans Rullgard static int 2737a8bb98cSMans Rullgard linux_to_osf_stat(struct kstat *lstat, struct osf_stat __user *osf_stat) 2747a8bb98cSMans Rullgard { 2757a8bb98cSMans Rullgard struct osf_stat tmp = { 0 }; 2767a8bb98cSMans Rullgard 2777a8bb98cSMans Rullgard tmp.st_dev = lstat->dev; 2787a8bb98cSMans Rullgard tmp.st_mode = lstat->mode; 2797a8bb98cSMans Rullgard tmp.st_nlink = lstat->nlink; 280f31389d5SEric W. Biederman tmp.st_uid = from_kuid_munged(current_user_ns(), lstat->uid); 281f31389d5SEric W. Biederman tmp.st_gid = from_kgid_munged(current_user_ns(), lstat->gid); 2827a8bb98cSMans Rullgard tmp.st_rdev = lstat->rdev; 2837a8bb98cSMans Rullgard tmp.st_ldev = lstat->rdev; 2847a8bb98cSMans Rullgard tmp.st_size = lstat->size; 2857a8bb98cSMans Rullgard tmp.st_uatime = lstat->atime.tv_nsec / 1000; 2867a8bb98cSMans Rullgard tmp.st_umtime = lstat->mtime.tv_nsec / 1000; 2877a8bb98cSMans Rullgard tmp.st_uctime = lstat->ctime.tv_nsec / 1000; 2887a8bb98cSMans Rullgard tmp.st_ino = lstat->ino; 2897a8bb98cSMans Rullgard tmp.st_atime = lstat->atime.tv_sec; 2907a8bb98cSMans Rullgard tmp.st_mtime = lstat->mtime.tv_sec; 2917a8bb98cSMans Rullgard tmp.st_ctime = lstat->ctime.tv_sec; 2927a8bb98cSMans Rullgard tmp.st_blksize = lstat->blksize; 2937a8bb98cSMans Rullgard tmp.st_blocks = lstat->blocks; 2947a8bb98cSMans Rullgard 2957a8bb98cSMans Rullgard return copy_to_user(osf_stat, &tmp, sizeof(tmp)) ? -EFAULT : 0; 2967a8bb98cSMans Rullgard } 2977a8bb98cSMans Rullgard 2981da177e4SLinus Torvalds static int 2991da177e4SLinus Torvalds linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat, 3001da177e4SLinus Torvalds unsigned long bufsiz) 3011da177e4SLinus Torvalds { 3021da177e4SLinus Torvalds struct osf_statfs tmp_stat; 3031da177e4SLinus Torvalds 3041da177e4SLinus Torvalds tmp_stat.f_type = linux_stat->f_type; 3051da177e4SLinus Torvalds tmp_stat.f_flags = 0; /* mount flags */ 3061da177e4SLinus Torvalds tmp_stat.f_fsize = linux_stat->f_frsize; 3071da177e4SLinus Torvalds tmp_stat.f_bsize = linux_stat->f_bsize; 3081da177e4SLinus Torvalds tmp_stat.f_blocks = linux_stat->f_blocks; 3091da177e4SLinus Torvalds tmp_stat.f_bfree = linux_stat->f_bfree; 3101da177e4SLinus Torvalds tmp_stat.f_bavail = linux_stat->f_bavail; 3111da177e4SLinus Torvalds tmp_stat.f_files = linux_stat->f_files; 3121da177e4SLinus Torvalds tmp_stat.f_ffree = linux_stat->f_ffree; 3131da177e4SLinus Torvalds tmp_stat.f_fsid = linux_stat->f_fsid; 3141da177e4SLinus Torvalds if (bufsiz > sizeof(tmp_stat)) 3151da177e4SLinus Torvalds bufsiz = sizeof(tmp_stat); 3161da177e4SLinus Torvalds return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0; 3171da177e4SLinus Torvalds } 3181da177e4SLinus Torvalds 3197a8bb98cSMans Rullgard static int 3207a8bb98cSMans Rullgard linux_to_osf_statfs64(struct kstatfs *linux_stat, struct osf_statfs64 __user *osf_stat, 3217a8bb98cSMans Rullgard unsigned long bufsiz) 3227a8bb98cSMans Rullgard { 3237a8bb98cSMans Rullgard struct osf_statfs64 tmp_stat = { 0 }; 3247a8bb98cSMans Rullgard 3257a8bb98cSMans Rullgard tmp_stat.f_type = linux_stat->f_type; 3267a8bb98cSMans Rullgard tmp_stat.f_fsize = linux_stat->f_frsize; 3277a8bb98cSMans Rullgard tmp_stat.f_bsize = linux_stat->f_bsize; 3287a8bb98cSMans Rullgard tmp_stat.f_blocks = linux_stat->f_blocks; 3297a8bb98cSMans Rullgard tmp_stat.f_bfree = linux_stat->f_bfree; 3307a8bb98cSMans Rullgard tmp_stat.f_bavail = linux_stat->f_bavail; 3317a8bb98cSMans Rullgard tmp_stat.f_files = linux_stat->f_files; 3327a8bb98cSMans Rullgard tmp_stat.f_ffree = linux_stat->f_ffree; 3337a8bb98cSMans Rullgard tmp_stat.f_fsid = linux_stat->f_fsid; 3347a8bb98cSMans Rullgard if (bufsiz > sizeof(tmp_stat)) 3357a8bb98cSMans Rullgard bufsiz = sizeof(tmp_stat); 3367a8bb98cSMans Rullgard return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0; 3377a8bb98cSMans Rullgard } 3387a8bb98cSMans Rullgard 339c8b91accSAl Viro SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname, 340c8b91accSAl Viro struct osf_statfs __user *, buffer, unsigned long, bufsiz) 3411da177e4SLinus Torvalds { 3421da177e4SLinus Torvalds struct kstatfs linux_stat; 343c8b91accSAl Viro int error = user_statfs(pathname, &linux_stat); 3441da177e4SLinus Torvalds if (!error) 3451da177e4SLinus Torvalds error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz); 3461da177e4SLinus Torvalds return error; 3471da177e4SLinus Torvalds } 3481da177e4SLinus Torvalds 3497a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_stat, char __user *, name, struct osf_stat __user *, buf) 3507a8bb98cSMans Rullgard { 3517a8bb98cSMans Rullgard struct kstat stat; 3527a8bb98cSMans Rullgard int error; 3537a8bb98cSMans Rullgard 3547a8bb98cSMans Rullgard error = vfs_stat(name, &stat); 3557a8bb98cSMans Rullgard if (error) 3567a8bb98cSMans Rullgard return error; 3577a8bb98cSMans Rullgard 3587a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3597a8bb98cSMans Rullgard } 3607a8bb98cSMans Rullgard 3617a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_lstat, char __user *, name, struct osf_stat __user *, buf) 3627a8bb98cSMans Rullgard { 3637a8bb98cSMans Rullgard struct kstat stat; 3647a8bb98cSMans Rullgard int error; 3657a8bb98cSMans Rullgard 3667a8bb98cSMans Rullgard error = vfs_lstat(name, &stat); 3677a8bb98cSMans Rullgard if (error) 3687a8bb98cSMans Rullgard return error; 3697a8bb98cSMans Rullgard 3707a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3717a8bb98cSMans Rullgard } 3727a8bb98cSMans Rullgard 3737a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_fstat, int, fd, struct osf_stat __user *, buf) 3747a8bb98cSMans Rullgard { 3757a8bb98cSMans Rullgard struct kstat stat; 3767a8bb98cSMans Rullgard int error; 3777a8bb98cSMans Rullgard 3787a8bb98cSMans Rullgard error = vfs_fstat(fd, &stat); 3797a8bb98cSMans Rullgard if (error) 3807a8bb98cSMans Rullgard return error; 3817a8bb98cSMans Rullgard 3827a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3837a8bb98cSMans Rullgard } 3847a8bb98cSMans Rullgard 385e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd, 386e5d9a90cSIvan Kokshaysky struct osf_statfs __user *, buffer, unsigned long, bufsiz) 3871da177e4SLinus Torvalds { 388c8b91accSAl Viro struct kstatfs linux_stat; 389c8b91accSAl Viro int error = fd_statfs(fd, &linux_stat); 390c8b91accSAl Viro if (!error) 391c8b91accSAl Viro error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz); 392c8b91accSAl Viro return error; 3931da177e4SLinus Torvalds } 3941da177e4SLinus Torvalds 3957a8bb98cSMans Rullgard SYSCALL_DEFINE3(osf_statfs64, char __user *, pathname, 3967a8bb98cSMans Rullgard struct osf_statfs64 __user *, buffer, unsigned long, bufsiz) 3977a8bb98cSMans Rullgard { 3987a8bb98cSMans Rullgard struct kstatfs linux_stat; 3997a8bb98cSMans Rullgard int error = user_statfs(pathname, &linux_stat); 4007a8bb98cSMans Rullgard if (!error) 4017a8bb98cSMans Rullgard error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz); 4027a8bb98cSMans Rullgard return error; 4037a8bb98cSMans Rullgard } 4047a8bb98cSMans Rullgard 4057a8bb98cSMans Rullgard SYSCALL_DEFINE3(osf_fstatfs64, unsigned long, fd, 4067a8bb98cSMans Rullgard struct osf_statfs64 __user *, buffer, unsigned long, bufsiz) 4077a8bb98cSMans Rullgard { 4087a8bb98cSMans Rullgard struct kstatfs linux_stat; 4097a8bb98cSMans Rullgard int error = fd_statfs(fd, &linux_stat); 4107a8bb98cSMans Rullgard if (!error) 4117a8bb98cSMans Rullgard error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz); 4127a8bb98cSMans Rullgard return error; 4137a8bb98cSMans Rullgard } 4147a8bb98cSMans Rullgard 4151da177e4SLinus Torvalds /* 4161da177e4SLinus Torvalds * Uhh.. OSF/1 mount parameters aren't exactly obvious.. 4171da177e4SLinus Torvalds * 4181da177e4SLinus Torvalds * Although to be frank, neither are the native Linux/i386 ones.. 4191da177e4SLinus Torvalds */ 4201da177e4SLinus Torvalds struct ufs_args { 4211da177e4SLinus Torvalds char __user *devname; 4221da177e4SLinus Torvalds int flags; 4231da177e4SLinus Torvalds uid_t exroot; 4241da177e4SLinus Torvalds }; 4251da177e4SLinus Torvalds 4261da177e4SLinus Torvalds struct cdfs_args { 4271da177e4SLinus Torvalds char __user *devname; 4281da177e4SLinus Torvalds int flags; 4291da177e4SLinus Torvalds uid_t exroot; 4301da177e4SLinus Torvalds 4311da177e4SLinus Torvalds /* This has lots more here, which Linux handles with the option block 4321da177e4SLinus Torvalds but I'm too lazy to do the translation into ASCII. */ 4331da177e4SLinus Torvalds }; 4341da177e4SLinus Torvalds 4351da177e4SLinus Torvalds struct procfs_args { 4361da177e4SLinus Torvalds char __user *devname; 4371da177e4SLinus Torvalds int flags; 4381da177e4SLinus Torvalds uid_t exroot; 4391da177e4SLinus Torvalds }; 4401da177e4SLinus Torvalds 4411da177e4SLinus Torvalds /* 4421da177e4SLinus Torvalds * We can't actually handle ufs yet, so we translate UFS mounts to 4431da177e4SLinus Torvalds * ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS 4441da177e4SLinus Torvalds * layout is so braindead it's a major headache doing it. 4451da177e4SLinus Torvalds * 4461da177e4SLinus Torvalds * Just how long ago was it written? OTOH our UFS driver may be still 4471da177e4SLinus Torvalds * unhappy with OSF UFS. [CHECKME] 4481da177e4SLinus Torvalds */ 4491da177e4SLinus Torvalds static int 4505e6123f3SSeunghun Lee osf_ufs_mount(const char __user *dirname, 4515e6123f3SSeunghun Lee struct ufs_args __user *args, int flags) 4521da177e4SLinus Torvalds { 4531da177e4SLinus Torvalds int retval; 4541da177e4SLinus Torvalds struct cdfs_args tmp; 45591a27b2aSJeff Layton struct filename *devname; 4561da177e4SLinus Torvalds 4571da177e4SLinus Torvalds retval = -EFAULT; 4581da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 4591da177e4SLinus Torvalds goto out; 4601da177e4SLinus Torvalds devname = getname(tmp.devname); 4611da177e4SLinus Torvalds retval = PTR_ERR(devname); 4621da177e4SLinus Torvalds if (IS_ERR(devname)) 4631da177e4SLinus Torvalds goto out; 46491a27b2aSJeff Layton retval = do_mount(devname->name, dirname, "ext2", flags, NULL); 4651da177e4SLinus Torvalds putname(devname); 4661da177e4SLinus Torvalds out: 4671da177e4SLinus Torvalds return retval; 4681da177e4SLinus Torvalds } 4691da177e4SLinus Torvalds 4701da177e4SLinus Torvalds static int 4715e6123f3SSeunghun Lee osf_cdfs_mount(const char __user *dirname, 4725e6123f3SSeunghun Lee struct cdfs_args __user *args, int flags) 4731da177e4SLinus Torvalds { 4741da177e4SLinus Torvalds int retval; 4751da177e4SLinus Torvalds struct cdfs_args tmp; 47691a27b2aSJeff Layton struct filename *devname; 4771da177e4SLinus Torvalds 4781da177e4SLinus Torvalds retval = -EFAULT; 4791da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 4801da177e4SLinus Torvalds goto out; 4811da177e4SLinus Torvalds devname = getname(tmp.devname); 4821da177e4SLinus Torvalds retval = PTR_ERR(devname); 4831da177e4SLinus Torvalds if (IS_ERR(devname)) 4841da177e4SLinus Torvalds goto out; 48591a27b2aSJeff Layton retval = do_mount(devname->name, dirname, "iso9660", flags, NULL); 4861da177e4SLinus Torvalds putname(devname); 4871da177e4SLinus Torvalds out: 4881da177e4SLinus Torvalds return retval; 4891da177e4SLinus Torvalds } 4901da177e4SLinus Torvalds 4911da177e4SLinus Torvalds static int 4925e6123f3SSeunghun Lee osf_procfs_mount(const char __user *dirname, 4935e6123f3SSeunghun Lee struct procfs_args __user *args, int flags) 4941da177e4SLinus Torvalds { 4951da177e4SLinus Torvalds struct procfs_args tmp; 4961da177e4SLinus Torvalds 4971da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 4981da177e4SLinus Torvalds return -EFAULT; 4991da177e4SLinus Torvalds 5001da177e4SLinus Torvalds return do_mount("", dirname, "proc", flags, NULL); 5011da177e4SLinus Torvalds } 5021da177e4SLinus Torvalds 503c7887325SDavid Howells SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path, 504e5d9a90cSIvan Kokshaysky int, flag, void __user *, data) 5051da177e4SLinus Torvalds { 50677079dbeSRoel Kluin int retval; 5071da177e4SLinus Torvalds 5081da177e4SLinus Torvalds switch (typenr) { 5091da177e4SLinus Torvalds case 1: 5105e6123f3SSeunghun Lee retval = osf_ufs_mount(path, data, flag); 5111da177e4SLinus Torvalds break; 5121da177e4SLinus Torvalds case 6: 5135e6123f3SSeunghun Lee retval = osf_cdfs_mount(path, data, flag); 5141da177e4SLinus Torvalds break; 5151da177e4SLinus Torvalds case 9: 5165e6123f3SSeunghun Lee retval = osf_procfs_mount(path, data, flag); 5171da177e4SLinus Torvalds break; 5181da177e4SLinus Torvalds default: 51977079dbeSRoel Kluin retval = -EINVAL; 5201da177e4SLinus Torvalds printk("osf_mount(%ld, %x)\n", typenr, flag); 5211da177e4SLinus Torvalds } 5225e6123f3SSeunghun Lee 5231da177e4SLinus Torvalds return retval; 5241da177e4SLinus Torvalds } 5251da177e4SLinus Torvalds 526e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(osf_utsname, char __user *, name) 5271da177e4SLinus Torvalds { 5281da177e4SLinus Torvalds int error; 5291da177e4SLinus Torvalds 5301da177e4SLinus Torvalds down_read(&uts_sem); 5311da177e4SLinus Torvalds error = -EFAULT; 532e9ff3990SSerge E. Hallyn if (copy_to_user(name + 0, utsname()->sysname, 32)) 5331da177e4SLinus Torvalds goto out; 534e9ff3990SSerge E. Hallyn if (copy_to_user(name + 32, utsname()->nodename, 32)) 5351da177e4SLinus Torvalds goto out; 536e9ff3990SSerge E. Hallyn if (copy_to_user(name + 64, utsname()->release, 32)) 5371da177e4SLinus Torvalds goto out; 538e9ff3990SSerge E. Hallyn if (copy_to_user(name + 96, utsname()->version, 32)) 5391da177e4SLinus Torvalds goto out; 540e9ff3990SSerge E. Hallyn if (copy_to_user(name + 128, utsname()->machine, 32)) 5411da177e4SLinus Torvalds goto out; 5421da177e4SLinus Torvalds 5431da177e4SLinus Torvalds error = 0; 5441da177e4SLinus Torvalds out: 5451da177e4SLinus Torvalds up_read(&uts_sem); 5461da177e4SLinus Torvalds return error; 5471da177e4SLinus Torvalds } 5481da177e4SLinus Torvalds 549e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE0(getpagesize) 5501da177e4SLinus Torvalds { 5511da177e4SLinus Torvalds return PAGE_SIZE; 5521da177e4SLinus Torvalds } 5531da177e4SLinus Torvalds 554e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE0(getdtablesize) 5551da177e4SLinus Torvalds { 5569cfe015aSEric Dumazet return sysctl_nr_open; 5571da177e4SLinus Torvalds } 5581da177e4SLinus Torvalds 5591da177e4SLinus Torvalds /* 5601da177e4SLinus Torvalds * For compatibility with OSF/1 only. Use utsname(2) instead. 5611da177e4SLinus Torvalds */ 562e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen) 5631da177e4SLinus Torvalds { 5641da177e4SLinus Torvalds unsigned len; 5651da177e4SLinus Torvalds int i; 5661da177e4SLinus Torvalds 5671da177e4SLinus Torvalds if (!access_ok(VERIFY_WRITE, name, namelen)) 5681da177e4SLinus Torvalds return -EFAULT; 5691da177e4SLinus Torvalds 5701da177e4SLinus Torvalds len = namelen; 57121c5977aSDan Rosenberg if (len > 32) 5721da177e4SLinus Torvalds len = 32; 5731da177e4SLinus Torvalds 5741da177e4SLinus Torvalds down_read(&uts_sem); 5751da177e4SLinus Torvalds for (i = 0; i < len; ++i) { 576e9ff3990SSerge E. Hallyn __put_user(utsname()->domainname[i], name + i); 577e9ff3990SSerge E. Hallyn if (utsname()->domainname[i] == '\0') 5781da177e4SLinus Torvalds break; 5791da177e4SLinus Torvalds } 5801da177e4SLinus Torvalds up_read(&uts_sem); 5811da177e4SLinus Torvalds 5821da177e4SLinus Torvalds return 0; 5831da177e4SLinus Torvalds } 5841da177e4SLinus Torvalds 5851da177e4SLinus Torvalds /* 5861da177e4SLinus Torvalds * The following stuff should move into a header file should it ever 5871da177e4SLinus Torvalds * be labeled "officially supported." Right now, there is just enough 5881da177e4SLinus Torvalds * support to avoid applications (such as tar) printing error 5891da177e4SLinus Torvalds * messages. The attributes are not really implemented. 5901da177e4SLinus Torvalds */ 5911da177e4SLinus Torvalds 5921da177e4SLinus Torvalds /* 5931da177e4SLinus Torvalds * Values for Property list entry flag 5941da177e4SLinus Torvalds */ 5951da177e4SLinus Torvalds #define PLE_PROPAGATE_ON_COPY 0x1 /* cp(1) will copy entry 5961da177e4SLinus Torvalds by default */ 5971da177e4SLinus Torvalds #define PLE_FLAG_MASK 0x1 /* Valid flag values */ 5981da177e4SLinus Torvalds #define PLE_FLAG_ALL -1 /* All flag value */ 5991da177e4SLinus Torvalds 6001da177e4SLinus Torvalds struct proplistname_args { 6011da177e4SLinus Torvalds unsigned int pl_mask; 6021da177e4SLinus Torvalds unsigned int pl_numnames; 6031da177e4SLinus Torvalds char **pl_names; 6041da177e4SLinus Torvalds }; 6051da177e4SLinus Torvalds 6061da177e4SLinus Torvalds union pl_args { 6071da177e4SLinus Torvalds struct setargs { 6081da177e4SLinus Torvalds char __user *path; 6091da177e4SLinus Torvalds long follow; 6101da177e4SLinus Torvalds long nbytes; 6111da177e4SLinus Torvalds char __user *buf; 6121da177e4SLinus Torvalds } set; 6131da177e4SLinus Torvalds struct fsetargs { 6141da177e4SLinus Torvalds long fd; 6151da177e4SLinus Torvalds long nbytes; 6161da177e4SLinus Torvalds char __user *buf; 6171da177e4SLinus Torvalds } fset; 6181da177e4SLinus Torvalds struct getargs { 6191da177e4SLinus Torvalds char __user *path; 6201da177e4SLinus Torvalds long follow; 6211da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6221da177e4SLinus Torvalds long nbytes; 6231da177e4SLinus Torvalds char __user *buf; 6241da177e4SLinus Torvalds int __user *min_buf_size; 6251da177e4SLinus Torvalds } get; 6261da177e4SLinus Torvalds struct fgetargs { 6271da177e4SLinus Torvalds long fd; 6281da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6291da177e4SLinus Torvalds long nbytes; 6301da177e4SLinus Torvalds char __user *buf; 6311da177e4SLinus Torvalds int __user *min_buf_size; 6321da177e4SLinus Torvalds } fget; 6331da177e4SLinus Torvalds struct delargs { 6341da177e4SLinus Torvalds char __user *path; 6351da177e4SLinus Torvalds long follow; 6361da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6371da177e4SLinus Torvalds } del; 6381da177e4SLinus Torvalds struct fdelargs { 6391da177e4SLinus Torvalds long fd; 6401da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6411da177e4SLinus Torvalds } fdel; 6421da177e4SLinus Torvalds }; 6431da177e4SLinus Torvalds 6441da177e4SLinus Torvalds enum pl_code { 6451da177e4SLinus Torvalds PL_SET = 1, PL_FSET = 2, 6461da177e4SLinus Torvalds PL_GET = 3, PL_FGET = 4, 6471da177e4SLinus Torvalds PL_DEL = 5, PL_FDEL = 6 6481da177e4SLinus Torvalds }; 6491da177e4SLinus Torvalds 650e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code, 651e5d9a90cSIvan Kokshaysky union pl_args __user *, args) 6521da177e4SLinus Torvalds { 6531da177e4SLinus Torvalds long error; 6541da177e4SLinus Torvalds int __user *min_buf_size_ptr; 6551da177e4SLinus Torvalds 6561da177e4SLinus Torvalds switch (code) { 6571da177e4SLinus Torvalds case PL_SET: 6581da177e4SLinus Torvalds if (get_user(error, &args->set.nbytes)) 6591da177e4SLinus Torvalds error = -EFAULT; 6601da177e4SLinus Torvalds break; 6611da177e4SLinus Torvalds case PL_FSET: 6621da177e4SLinus Torvalds if (get_user(error, &args->fset.nbytes)) 6631da177e4SLinus Torvalds error = -EFAULT; 6641da177e4SLinus Torvalds break; 6651da177e4SLinus Torvalds case PL_GET: 6661da177e4SLinus Torvalds error = get_user(min_buf_size_ptr, &args->get.min_buf_size); 6671da177e4SLinus Torvalds if (error) 6681da177e4SLinus Torvalds break; 6691da177e4SLinus Torvalds error = put_user(0, min_buf_size_ptr); 6701da177e4SLinus Torvalds break; 6711da177e4SLinus Torvalds case PL_FGET: 6721da177e4SLinus Torvalds error = get_user(min_buf_size_ptr, &args->fget.min_buf_size); 6731da177e4SLinus Torvalds if (error) 6741da177e4SLinus Torvalds break; 6751da177e4SLinus Torvalds error = put_user(0, min_buf_size_ptr); 6761da177e4SLinus Torvalds break; 6771da177e4SLinus Torvalds case PL_DEL: 6781da177e4SLinus Torvalds case PL_FDEL: 6791da177e4SLinus Torvalds error = 0; 6801da177e4SLinus Torvalds break; 6811da177e4SLinus Torvalds default: 6821da177e4SLinus Torvalds error = -EOPNOTSUPP; 6831da177e4SLinus Torvalds break; 6841da177e4SLinus Torvalds }; 6851da177e4SLinus Torvalds return error; 6861da177e4SLinus Torvalds } 6871da177e4SLinus Torvalds 688e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss, 689e5d9a90cSIvan Kokshaysky struct sigstack __user *, uoss) 6901da177e4SLinus Torvalds { 6911da177e4SLinus Torvalds unsigned long usp = rdusp(); 6921da177e4SLinus Torvalds unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size; 6931da177e4SLinus Torvalds unsigned long oss_os = on_sig_stack(usp); 6941da177e4SLinus Torvalds int error; 6951da177e4SLinus Torvalds 6961da177e4SLinus Torvalds if (uss) { 6971da177e4SLinus Torvalds void __user *ss_sp; 6981da177e4SLinus Torvalds 6991da177e4SLinus Torvalds error = -EFAULT; 7001da177e4SLinus Torvalds if (get_user(ss_sp, &uss->ss_sp)) 7011da177e4SLinus Torvalds goto out; 7021da177e4SLinus Torvalds 7031da177e4SLinus Torvalds /* If the current stack was set with sigaltstack, don't 7041da177e4SLinus Torvalds swap stacks while we are on it. */ 7051da177e4SLinus Torvalds error = -EPERM; 7061da177e4SLinus Torvalds if (current->sas_ss_sp && on_sig_stack(usp)) 7071da177e4SLinus Torvalds goto out; 7081da177e4SLinus Torvalds 7091da177e4SLinus Torvalds /* Since we don't know the extent of the stack, and we don't 7101da177e4SLinus Torvalds track onstack-ness, but rather calculate it, we must 7111da177e4SLinus Torvalds presume a size. Ho hum this interface is lossy. */ 7121da177e4SLinus Torvalds current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ; 7131da177e4SLinus Torvalds current->sas_ss_size = SIGSTKSZ; 7141da177e4SLinus Torvalds } 7151da177e4SLinus Torvalds 7161da177e4SLinus Torvalds if (uoss) { 7171da177e4SLinus Torvalds error = -EFAULT; 7181da177e4SLinus Torvalds if (! access_ok(VERIFY_WRITE, uoss, sizeof(*uoss)) 7191da177e4SLinus Torvalds || __put_user(oss_sp, &uoss->ss_sp) 7201da177e4SLinus Torvalds || __put_user(oss_os, &uoss->ss_onstack)) 7211da177e4SLinus Torvalds goto out; 7221da177e4SLinus Torvalds } 7231da177e4SLinus Torvalds 7241da177e4SLinus Torvalds error = 0; 7251da177e4SLinus Torvalds out: 7261da177e4SLinus Torvalds return error; 7271da177e4SLinus Torvalds } 7281da177e4SLinus Torvalds 729e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count) 7301da177e4SLinus Torvalds { 73131019075SJoe Perches const char *sysinfo_table[] = { 732e9ff3990SSerge E. Hallyn utsname()->sysname, 733e9ff3990SSerge E. Hallyn utsname()->nodename, 734e9ff3990SSerge E. Hallyn utsname()->release, 735e9ff3990SSerge E. Hallyn utsname()->version, 736e9ff3990SSerge E. Hallyn utsname()->machine, 7371da177e4SLinus Torvalds "alpha", /* instruction set architecture */ 7381da177e4SLinus Torvalds "dummy", /* hardware serial number */ 7391da177e4SLinus Torvalds "dummy", /* hardware manufacturer */ 7401da177e4SLinus Torvalds "dummy", /* secure RPC domain */ 7411da177e4SLinus Torvalds }; 7421da177e4SLinus Torvalds unsigned long offset; 74331019075SJoe Perches const char *res; 7441da177e4SLinus Torvalds long len, err = -EINVAL; 7451da177e4SLinus Torvalds 7461da177e4SLinus Torvalds offset = command-1; 74725c8716cSTobias Klauser if (offset >= ARRAY_SIZE(sysinfo_table)) { 7481da177e4SLinus Torvalds /* Digital UNIX has a few unpublished interfaces here */ 7491da177e4SLinus Torvalds printk("sysinfo(%d)", command); 7501da177e4SLinus Torvalds goto out; 7511da177e4SLinus Torvalds } 7521da177e4SLinus Torvalds 7531da177e4SLinus Torvalds down_read(&uts_sem); 7541da177e4SLinus Torvalds res = sysinfo_table[offset]; 7551da177e4SLinus Torvalds len = strlen(res)+1; 75621c5977aSDan Rosenberg if ((unsigned long)len > (unsigned long)count) 7571da177e4SLinus Torvalds len = count; 7581da177e4SLinus Torvalds if (copy_to_user(buf, res, len)) 7591da177e4SLinus Torvalds err = -EFAULT; 7601da177e4SLinus Torvalds else 7611da177e4SLinus Torvalds err = 0; 7621da177e4SLinus Torvalds up_read(&uts_sem); 7631da177e4SLinus Torvalds out: 7641da177e4SLinus Torvalds return err; 7651da177e4SLinus Torvalds } 7661da177e4SLinus Torvalds 767e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer, 768e5d9a90cSIvan Kokshaysky unsigned long, nbytes, int __user *, start, void __user *, arg) 7691da177e4SLinus Torvalds { 7701da177e4SLinus Torvalds unsigned long w; 7711da177e4SLinus Torvalds struct percpu_struct *cpu; 7721da177e4SLinus Torvalds 7731da177e4SLinus Torvalds switch (op) { 7741da177e4SLinus Torvalds case GSI_IEEE_FP_CONTROL: 7751da177e4SLinus Torvalds /* Return current software fp control & status bits. */ 7761da177e4SLinus Torvalds /* Note that DU doesn't verify available space here. */ 7771da177e4SLinus Torvalds 7781da177e4SLinus Torvalds w = current_thread_info()->ieee_state & IEEE_SW_MASK; 7791da177e4SLinus Torvalds w = swcr_update_status(w, rdfpcr()); 7801da177e4SLinus Torvalds if (put_user(w, (unsigned long __user *) buffer)) 7811da177e4SLinus Torvalds return -EFAULT; 7821da177e4SLinus Torvalds return 0; 7831da177e4SLinus Torvalds 7841da177e4SLinus Torvalds case GSI_IEEE_STATE_AT_SIGNAL: 7851da177e4SLinus Torvalds /* 7861da177e4SLinus Torvalds * Not sure anybody will ever use this weird stuff. These 7871da177e4SLinus Torvalds * ops can be used (under OSF/1) to set the fpcr that should 7881da177e4SLinus Torvalds * be used when a signal handler starts executing. 7891da177e4SLinus Torvalds */ 7901da177e4SLinus Torvalds break; 7911da177e4SLinus Torvalds 7921da177e4SLinus Torvalds case GSI_UACPROC: 7931da177e4SLinus Torvalds if (nbytes < sizeof(unsigned int)) 7941da177e4SLinus Torvalds return -EINVAL; 7953185bd26SAl Viro w = current_thread_info()->status & UAC_BITMASK; 7961da177e4SLinus Torvalds if (put_user(w, (unsigned int __user *)buffer)) 7971da177e4SLinus Torvalds return -EFAULT; 7981da177e4SLinus Torvalds return 1; 7991da177e4SLinus Torvalds 8001da177e4SLinus Torvalds case GSI_PROC_TYPE: 8011da177e4SLinus Torvalds if (nbytes < sizeof(unsigned long)) 8021da177e4SLinus Torvalds return -EINVAL; 8031da177e4SLinus Torvalds cpu = (struct percpu_struct*) 8041da177e4SLinus Torvalds ((char*)hwrpb + hwrpb->processor_offset); 8051da177e4SLinus Torvalds w = cpu->type; 8061da177e4SLinus Torvalds if (put_user(w, (unsigned long __user*)buffer)) 8071da177e4SLinus Torvalds return -EFAULT; 8081da177e4SLinus Torvalds return 1; 8091da177e4SLinus Torvalds 8101da177e4SLinus Torvalds case GSI_GET_HWRPB: 81121c5977aSDan Rosenberg if (nbytes > sizeof(*hwrpb)) 8121da177e4SLinus Torvalds return -EINVAL; 8131da177e4SLinus Torvalds if (copy_to_user(buffer, hwrpb, nbytes) != 0) 8141da177e4SLinus Torvalds return -EFAULT; 8151da177e4SLinus Torvalds return 1; 8161da177e4SLinus Torvalds 8171da177e4SLinus Torvalds default: 8181da177e4SLinus Torvalds break; 8191da177e4SLinus Torvalds } 8201da177e4SLinus Torvalds 8211da177e4SLinus Torvalds return -EOPNOTSUPP; 8221da177e4SLinus Torvalds } 8231da177e4SLinus Torvalds 824e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer, 825e5d9a90cSIvan Kokshaysky unsigned long, nbytes, int __user *, start, void __user *, arg) 8261da177e4SLinus Torvalds { 8271da177e4SLinus Torvalds switch (op) { 8281da177e4SLinus Torvalds case SSI_IEEE_FP_CONTROL: { 8291da177e4SLinus Torvalds unsigned long swcr, fpcr; 8301da177e4SLinus Torvalds unsigned int *state; 8311da177e4SLinus Torvalds 8321da177e4SLinus Torvalds /* 8331da177e4SLinus Torvalds * Alpha Architecture Handbook 4.7.7.3: 8341da177e4SLinus Torvalds * To be fully IEEE compiant, we must track the current IEEE 835c3a2ddeeSSimon Arlott * exception state in software, because spurious bits can be 8361da177e4SLinus Torvalds * set in the trap shadow of a software-complete insn. 8371da177e4SLinus Torvalds */ 8381da177e4SLinus Torvalds 8391da177e4SLinus Torvalds if (get_user(swcr, (unsigned long __user *)buffer)) 8401da177e4SLinus Torvalds return -EFAULT; 8411da177e4SLinus Torvalds state = ¤t_thread_info()->ieee_state; 8421da177e4SLinus Torvalds 8431da177e4SLinus Torvalds /* Update softare trap enable bits. */ 8441da177e4SLinus Torvalds *state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK); 8451da177e4SLinus Torvalds 8461da177e4SLinus Torvalds /* Update the real fpcr. */ 8471da177e4SLinus Torvalds fpcr = rdfpcr() & FPCR_DYN_MASK; 8481da177e4SLinus Torvalds fpcr |= ieee_swcr_to_fpcr(swcr); 8491da177e4SLinus Torvalds wrfpcr(fpcr); 8501da177e4SLinus Torvalds 8511da177e4SLinus Torvalds return 0; 8521da177e4SLinus Torvalds } 8531da177e4SLinus Torvalds 8541da177e4SLinus Torvalds case SSI_IEEE_RAISE_EXCEPTION: { 8551da177e4SLinus Torvalds unsigned long exc, swcr, fpcr, fex; 8561da177e4SLinus Torvalds unsigned int *state; 8571da177e4SLinus Torvalds 8581da177e4SLinus Torvalds if (get_user(exc, (unsigned long __user *)buffer)) 8591da177e4SLinus Torvalds return -EFAULT; 8601da177e4SLinus Torvalds state = ¤t_thread_info()->ieee_state; 8611da177e4SLinus Torvalds exc &= IEEE_STATUS_MASK; 8621da177e4SLinus Torvalds 8631da177e4SLinus Torvalds /* Update softare trap enable bits. */ 8641da177e4SLinus Torvalds swcr = (*state & IEEE_SW_MASK) | exc; 8651da177e4SLinus Torvalds *state |= exc; 8661da177e4SLinus Torvalds 8671da177e4SLinus Torvalds /* Update the real fpcr. */ 8681da177e4SLinus Torvalds fpcr = rdfpcr(); 8691da177e4SLinus Torvalds fpcr |= ieee_swcr_to_fpcr(swcr); 8701da177e4SLinus Torvalds wrfpcr(fpcr); 8711da177e4SLinus Torvalds 8721da177e4SLinus Torvalds /* If any exceptions set by this call, and are unmasked, 8731da177e4SLinus Torvalds send a signal. Old exceptions are not signaled. */ 8741da177e4SLinus Torvalds fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr; 8751da177e4SLinus Torvalds if (fex) { 8761da177e4SLinus Torvalds siginfo_t info; 8771da177e4SLinus Torvalds int si_code = 0; 8781da177e4SLinus Torvalds 8791da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND; 8801da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES; 8811da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND; 8821da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF; 8831da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV; 8841da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV; 8851da177e4SLinus Torvalds 8861da177e4SLinus Torvalds info.si_signo = SIGFPE; 8871da177e4SLinus Torvalds info.si_errno = 0; 8881da177e4SLinus Torvalds info.si_code = si_code; 8891da177e4SLinus Torvalds info.si_addr = NULL; /* FIXME */ 8901da177e4SLinus Torvalds send_sig_info(SIGFPE, &info, current); 8911da177e4SLinus Torvalds } 8921da177e4SLinus Torvalds return 0; 8931da177e4SLinus Torvalds } 8941da177e4SLinus Torvalds 8951da177e4SLinus Torvalds case SSI_IEEE_STATE_AT_SIGNAL: 8961da177e4SLinus Torvalds case SSI_IEEE_IGNORE_STATE_AT_SIGNAL: 8971da177e4SLinus Torvalds /* 8981da177e4SLinus Torvalds * Not sure anybody will ever use this weird stuff. These 8991da177e4SLinus Torvalds * ops can be used (under OSF/1) to set the fpcr that should 9001da177e4SLinus Torvalds * be used when a signal handler starts executing. 9011da177e4SLinus Torvalds */ 9021da177e4SLinus Torvalds break; 9031da177e4SLinus Torvalds 9041da177e4SLinus Torvalds case SSI_NVPAIRS: { 9053185bd26SAl Viro unsigned __user *p = buffer; 9063185bd26SAl Viro unsigned i; 9071da177e4SLinus Torvalds 9083185bd26SAl Viro for (i = 0, p = buffer; i < nbytes; ++i, p += 2) { 9093185bd26SAl Viro unsigned v, w, status; 9101da177e4SLinus Torvalds 9113185bd26SAl Viro if (get_user(v, p) || get_user(w, p + 1)) 9121da177e4SLinus Torvalds return -EFAULT; 9131da177e4SLinus Torvalds switch (v) { 9141da177e4SLinus Torvalds case SSIN_UACPROC: 9153185bd26SAl Viro w &= UAC_BITMASK; 9163185bd26SAl Viro status = current_thread_info()->status; 9173185bd26SAl Viro status = (status & ~UAC_BITMASK) | w; 9183185bd26SAl Viro current_thread_info()->status = status; 9191da177e4SLinus Torvalds break; 9201da177e4SLinus Torvalds 9211da177e4SLinus Torvalds default: 9221da177e4SLinus Torvalds return -EOPNOTSUPP; 9231da177e4SLinus Torvalds } 9241da177e4SLinus Torvalds } 9251da177e4SLinus Torvalds return 0; 9261da177e4SLinus Torvalds } 9271da177e4SLinus Torvalds 92850744deeSMans Rullgard case SSI_LMF: 92950744deeSMans Rullgard return 0; 93050744deeSMans Rullgard 9311da177e4SLinus Torvalds default: 9321da177e4SLinus Torvalds break; 9331da177e4SLinus Torvalds } 9341da177e4SLinus Torvalds 9351da177e4SLinus Torvalds return -EOPNOTSUPP; 9361da177e4SLinus Torvalds } 9371da177e4SLinus Torvalds 9381da177e4SLinus Torvalds /* Translations due to the fact that OSF's time_t is an int. Which 9391da177e4SLinus Torvalds affects all sorts of things, like timeval and itimerval. */ 9401da177e4SLinus Torvalds 9411da177e4SLinus Torvalds extern struct timezone sys_tz; 9421da177e4SLinus Torvalds 9431da177e4SLinus Torvalds struct timeval32 9441da177e4SLinus Torvalds { 9451da177e4SLinus Torvalds int tv_sec, tv_usec; 9461da177e4SLinus Torvalds }; 9471da177e4SLinus Torvalds 9481da177e4SLinus Torvalds struct itimerval32 9491da177e4SLinus Torvalds { 9501da177e4SLinus Torvalds struct timeval32 it_interval; 9511da177e4SLinus Torvalds struct timeval32 it_value; 9521da177e4SLinus Torvalds }; 9531da177e4SLinus Torvalds 9541da177e4SLinus Torvalds static inline long 9551da177e4SLinus Torvalds get_tv32(struct timeval *o, struct timeval32 __user *i) 9561da177e4SLinus Torvalds { 9571da177e4SLinus Torvalds return (!access_ok(VERIFY_READ, i, sizeof(*i)) || 9581da177e4SLinus Torvalds (__get_user(o->tv_sec, &i->tv_sec) | 9591da177e4SLinus Torvalds __get_user(o->tv_usec, &i->tv_usec))); 9601da177e4SLinus Torvalds } 9611da177e4SLinus Torvalds 9621da177e4SLinus Torvalds static inline long 9631da177e4SLinus Torvalds put_tv32(struct timeval32 __user *o, struct timeval *i) 9641da177e4SLinus Torvalds { 9651da177e4SLinus Torvalds return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || 9661da177e4SLinus Torvalds (__put_user(i->tv_sec, &o->tv_sec) | 9671da177e4SLinus Torvalds __put_user(i->tv_usec, &o->tv_usec))); 9681da177e4SLinus Torvalds } 9691da177e4SLinus Torvalds 9701da177e4SLinus Torvalds static inline long 9711da177e4SLinus Torvalds get_it32(struct itimerval *o, struct itimerval32 __user *i) 9721da177e4SLinus Torvalds { 9731da177e4SLinus Torvalds return (!access_ok(VERIFY_READ, i, sizeof(*i)) || 9741da177e4SLinus Torvalds (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) | 9751da177e4SLinus Torvalds __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) | 9761da177e4SLinus Torvalds __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) | 9771da177e4SLinus Torvalds __get_user(o->it_value.tv_usec, &i->it_value.tv_usec))); 9781da177e4SLinus Torvalds } 9791da177e4SLinus Torvalds 9801da177e4SLinus Torvalds static inline long 9811da177e4SLinus Torvalds put_it32(struct itimerval32 __user *o, struct itimerval *i) 9821da177e4SLinus Torvalds { 9831da177e4SLinus Torvalds return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || 9841da177e4SLinus Torvalds (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) | 9851da177e4SLinus Torvalds __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) | 9861da177e4SLinus Torvalds __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) | 9871da177e4SLinus Torvalds __put_user(i->it_value.tv_usec, &o->it_value.tv_usec))); 9881da177e4SLinus Torvalds } 9891da177e4SLinus Torvalds 9901da177e4SLinus Torvalds static inline void 9911da177e4SLinus Torvalds jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value) 9921da177e4SLinus Torvalds { 9931da177e4SLinus Torvalds value->tv_usec = (jiffies % HZ) * (1000000L / HZ); 9941da177e4SLinus Torvalds value->tv_sec = jiffies / HZ; 9951da177e4SLinus Torvalds } 9961da177e4SLinus Torvalds 997e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv, 998e5d9a90cSIvan Kokshaysky struct timezone __user *, tz) 9991da177e4SLinus Torvalds { 10001da177e4SLinus Torvalds if (tv) { 10011da177e4SLinus Torvalds struct timeval ktv; 10021da177e4SLinus Torvalds do_gettimeofday(&ktv); 10031da177e4SLinus Torvalds if (put_tv32(tv, &ktv)) 10041da177e4SLinus Torvalds return -EFAULT; 10051da177e4SLinus Torvalds } 10061da177e4SLinus Torvalds if (tz) { 10071da177e4SLinus Torvalds if (copy_to_user(tz, &sys_tz, sizeof(sys_tz))) 10081da177e4SLinus Torvalds return -EFAULT; 10091da177e4SLinus Torvalds } 10101da177e4SLinus Torvalds return 0; 10111da177e4SLinus Torvalds } 10121da177e4SLinus Torvalds 1013e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv, 1014e5d9a90cSIvan Kokshaysky struct timezone __user *, tz) 10151da177e4SLinus Torvalds { 10161da177e4SLinus Torvalds struct timespec kts; 10171da177e4SLinus Torvalds struct timezone ktz; 10181da177e4SLinus Torvalds 10191da177e4SLinus Torvalds if (tv) { 10201da177e4SLinus Torvalds if (get_tv32((struct timeval *)&kts, tv)) 10211da177e4SLinus Torvalds return -EFAULT; 1022cceaeddcSChen Gang kts.tv_nsec *= 1000; 10231da177e4SLinus Torvalds } 10241da177e4SLinus Torvalds if (tz) { 10251da177e4SLinus Torvalds if (copy_from_user(&ktz, tz, sizeof(*tz))) 10261da177e4SLinus Torvalds return -EFAULT; 10271da177e4SLinus Torvalds } 10281da177e4SLinus Torvalds 10291da177e4SLinus Torvalds return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL); 10301da177e4SLinus Torvalds } 10311da177e4SLinus Torvalds 1032e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_getitimer, int, which, struct itimerval32 __user *, it) 10331da177e4SLinus Torvalds { 10341da177e4SLinus Torvalds struct itimerval kit; 10351da177e4SLinus Torvalds int error; 10361da177e4SLinus Torvalds 10371da177e4SLinus Torvalds error = do_getitimer(which, &kit); 10381da177e4SLinus Torvalds if (!error && put_it32(it, &kit)) 10391da177e4SLinus Torvalds error = -EFAULT; 10401da177e4SLinus Torvalds 10411da177e4SLinus Torvalds return error; 10421da177e4SLinus Torvalds } 10431da177e4SLinus Torvalds 1044e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_setitimer, int, which, struct itimerval32 __user *, in, 1045e5d9a90cSIvan Kokshaysky struct itimerval32 __user *, out) 10461da177e4SLinus Torvalds { 10471da177e4SLinus Torvalds struct itimerval kin, kout; 10481da177e4SLinus Torvalds int error; 10491da177e4SLinus Torvalds 10501da177e4SLinus Torvalds if (in) { 10511da177e4SLinus Torvalds if (get_it32(&kin, in)) 10521da177e4SLinus Torvalds return -EFAULT; 10531da177e4SLinus Torvalds } else 10541da177e4SLinus Torvalds memset(&kin, 0, sizeof(kin)); 10551da177e4SLinus Torvalds 10561da177e4SLinus Torvalds error = do_setitimer(which, &kin, out ? &kout : NULL); 10571da177e4SLinus Torvalds if (error || !out) 10581da177e4SLinus Torvalds return error; 10591da177e4SLinus Torvalds 10601da177e4SLinus Torvalds if (put_it32(out, &kout)) 10611da177e4SLinus Torvalds return -EFAULT; 10621da177e4SLinus Torvalds 10631da177e4SLinus Torvalds return 0; 10641da177e4SLinus Torvalds 10651da177e4SLinus Torvalds } 10661da177e4SLinus Torvalds 1067c7887325SDavid Howells SYSCALL_DEFINE2(osf_utimes, const char __user *, filename, 1068e5d9a90cSIvan Kokshaysky struct timeval32 __user *, tvs) 10691da177e4SLinus Torvalds { 10701c710c89SUlrich Drepper struct timespec tv[2]; 10711da177e4SLinus Torvalds 10721da177e4SLinus Torvalds if (tvs) { 10731c710c89SUlrich Drepper struct timeval ktvs[2]; 10741da177e4SLinus Torvalds if (get_tv32(&ktvs[0], &tvs[0]) || 10751da177e4SLinus Torvalds get_tv32(&ktvs[1], &tvs[1])) 10761da177e4SLinus Torvalds return -EFAULT; 10771c710c89SUlrich Drepper 10781c710c89SUlrich Drepper if (ktvs[0].tv_usec < 0 || ktvs[0].tv_usec >= 1000000 || 10791c710c89SUlrich Drepper ktvs[1].tv_usec < 0 || ktvs[1].tv_usec >= 1000000) 10801c710c89SUlrich Drepper return -EINVAL; 10811c710c89SUlrich Drepper 10821c710c89SUlrich Drepper tv[0].tv_sec = ktvs[0].tv_sec; 10831c710c89SUlrich Drepper tv[0].tv_nsec = 1000 * ktvs[0].tv_usec; 10841c710c89SUlrich Drepper tv[1].tv_sec = ktvs[1].tv_sec; 10851c710c89SUlrich Drepper tv[1].tv_nsec = 1000 * ktvs[1].tv_usec; 10861da177e4SLinus Torvalds } 10871da177e4SLinus Torvalds 10881c710c89SUlrich Drepper return do_utimes(AT_FDCWD, filename, tvs ? tv : NULL, 0); 10891da177e4SLinus Torvalds } 10901da177e4SLinus Torvalds 1091e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE5(osf_select, int, n, fd_set __user *, inp, fd_set __user *, outp, 1092e5d9a90cSIvan Kokshaysky fd_set __user *, exp, struct timeval32 __user *, tvp) 10931da177e4SLinus Torvalds { 109414e2acd8SArjan van de Ven struct timespec end_time, *to = NULL; 10951da177e4SLinus Torvalds if (tvp) { 10961da177e4SLinus Torvalds time_t sec, usec; 10971da177e4SLinus Torvalds 109814e2acd8SArjan van de Ven to = &end_time; 109914e2acd8SArjan van de Ven 11001da177e4SLinus Torvalds if (!access_ok(VERIFY_READ, tvp, sizeof(*tvp)) 11011da177e4SLinus Torvalds || __get_user(sec, &tvp->tv_sec) 11021da177e4SLinus Torvalds || __get_user(usec, &tvp->tv_usec)) { 1103a2dcb44cSAl Viro return -EFAULT; 11041da177e4SLinus Torvalds } 11051da177e4SLinus Torvalds 11061da177e4SLinus Torvalds if (sec < 0 || usec < 0) 1107a2dcb44cSAl Viro return -EINVAL; 11081da177e4SLinus Torvalds 110914e2acd8SArjan van de Ven if (poll_select_set_timeout(to, sec, usec * NSEC_PER_USEC)) 111014e2acd8SArjan van de Ven return -EINVAL; 111114e2acd8SArjan van de Ven 11121da177e4SLinus Torvalds } 11131da177e4SLinus Torvalds 11141da177e4SLinus Torvalds /* OSF does not copy back the remaining time. */ 111514e2acd8SArjan van de Ven return core_sys_select(n, inp, outp, exp, to); 11161da177e4SLinus Torvalds } 11171da177e4SLinus Torvalds 11181da177e4SLinus Torvalds struct rusage32 { 11191da177e4SLinus Torvalds struct timeval32 ru_utime; /* user time used */ 11201da177e4SLinus Torvalds struct timeval32 ru_stime; /* system time used */ 11211da177e4SLinus Torvalds long ru_maxrss; /* maximum resident set size */ 11221da177e4SLinus Torvalds long ru_ixrss; /* integral shared memory size */ 11231da177e4SLinus Torvalds long ru_idrss; /* integral unshared data size */ 11241da177e4SLinus Torvalds long ru_isrss; /* integral unshared stack size */ 11251da177e4SLinus Torvalds long ru_minflt; /* page reclaims */ 11261da177e4SLinus Torvalds long ru_majflt; /* page faults */ 11271da177e4SLinus Torvalds long ru_nswap; /* swaps */ 11281da177e4SLinus Torvalds long ru_inblock; /* block input operations */ 11291da177e4SLinus Torvalds long ru_oublock; /* block output operations */ 11301da177e4SLinus Torvalds long ru_msgsnd; /* messages sent */ 11311da177e4SLinus Torvalds long ru_msgrcv; /* messages received */ 11321da177e4SLinus Torvalds long ru_nsignals; /* signals received */ 11331da177e4SLinus Torvalds long ru_nvcsw; /* voluntary context switches */ 11341da177e4SLinus Torvalds long ru_nivcsw; /* involuntary " */ 11351da177e4SLinus Torvalds }; 11361da177e4SLinus Torvalds 1137e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru) 11381da177e4SLinus Torvalds { 11391da177e4SLinus Torvalds struct rusage32 r; 11406fac4829SFrederic Weisbecker cputime_t utime, stime; 11411da177e4SLinus Torvalds 11421da177e4SLinus Torvalds if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN) 11431da177e4SLinus Torvalds return -EINVAL; 11441da177e4SLinus Torvalds 11451da177e4SLinus Torvalds memset(&r, 0, sizeof(r)); 11461da177e4SLinus Torvalds switch (who) { 11471da177e4SLinus Torvalds case RUSAGE_SELF: 11486fac4829SFrederic Weisbecker task_cputime(current, &utime, &stime); 11496fac4829SFrederic Weisbecker jiffies_to_timeval32(utime, &r.ru_utime); 11506fac4829SFrederic Weisbecker jiffies_to_timeval32(stime, &r.ru_stime); 11511da177e4SLinus Torvalds r.ru_minflt = current->min_flt; 11521da177e4SLinus Torvalds r.ru_majflt = current->maj_flt; 11531da177e4SLinus Torvalds break; 11541da177e4SLinus Torvalds case RUSAGE_CHILDREN: 11551da177e4SLinus Torvalds jiffies_to_timeval32(current->signal->cutime, &r.ru_utime); 11561da177e4SLinus Torvalds jiffies_to_timeval32(current->signal->cstime, &r.ru_stime); 11571da177e4SLinus Torvalds r.ru_minflt = current->signal->cmin_flt; 11581da177e4SLinus Torvalds r.ru_majflt = current->signal->cmaj_flt; 11591da177e4SLinus Torvalds break; 11601da177e4SLinus Torvalds } 11611da177e4SLinus Torvalds 11621da177e4SLinus Torvalds return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0; 11631da177e4SLinus Torvalds } 11641da177e4SLinus Torvalds 1165e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options, 1166e5d9a90cSIvan Kokshaysky struct rusage32 __user *, ur) 11671da177e4SLinus Torvalds { 11681da177e4SLinus Torvalds struct rusage r; 11691da177e4SLinus Torvalds long ret, err; 117021c5977aSDan Rosenberg unsigned int status = 0; 11711da177e4SLinus Torvalds mm_segment_t old_fs; 11721da177e4SLinus Torvalds 11731da177e4SLinus Torvalds if (!ur) 11741da177e4SLinus Torvalds return sys_wait4(pid, ustatus, options, NULL); 11751da177e4SLinus Torvalds 11761da177e4SLinus Torvalds old_fs = get_fs(); 11771da177e4SLinus Torvalds 11781da177e4SLinus Torvalds set_fs (KERNEL_DS); 117921c5977aSDan Rosenberg ret = sys_wait4(pid, (unsigned int __user *) &status, options, 118021c5977aSDan Rosenberg (struct rusage __user *) &r); 11811da177e4SLinus Torvalds set_fs (old_fs); 11821da177e4SLinus Torvalds 11831da177e4SLinus Torvalds if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur))) 11841da177e4SLinus Torvalds return -EFAULT; 11851da177e4SLinus Torvalds 11861da177e4SLinus Torvalds err = 0; 118721c5977aSDan Rosenberg err |= put_user(status, ustatus); 11881da177e4SLinus Torvalds err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec); 11891da177e4SLinus Torvalds err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec); 11901da177e4SLinus Torvalds err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec); 11911da177e4SLinus Torvalds err |= __put_user(r.ru_stime.tv_usec, &ur->ru_stime.tv_usec); 11921da177e4SLinus Torvalds err |= __put_user(r.ru_maxrss, &ur->ru_maxrss); 11931da177e4SLinus Torvalds err |= __put_user(r.ru_ixrss, &ur->ru_ixrss); 11941da177e4SLinus Torvalds err |= __put_user(r.ru_idrss, &ur->ru_idrss); 11951da177e4SLinus Torvalds err |= __put_user(r.ru_isrss, &ur->ru_isrss); 11961da177e4SLinus Torvalds err |= __put_user(r.ru_minflt, &ur->ru_minflt); 11971da177e4SLinus Torvalds err |= __put_user(r.ru_majflt, &ur->ru_majflt); 11981da177e4SLinus Torvalds err |= __put_user(r.ru_nswap, &ur->ru_nswap); 11991da177e4SLinus Torvalds err |= __put_user(r.ru_inblock, &ur->ru_inblock); 12001da177e4SLinus Torvalds err |= __put_user(r.ru_oublock, &ur->ru_oublock); 12011da177e4SLinus Torvalds err |= __put_user(r.ru_msgsnd, &ur->ru_msgsnd); 12021da177e4SLinus Torvalds err |= __put_user(r.ru_msgrcv, &ur->ru_msgrcv); 12031da177e4SLinus Torvalds err |= __put_user(r.ru_nsignals, &ur->ru_nsignals); 12041da177e4SLinus Torvalds err |= __put_user(r.ru_nvcsw, &ur->ru_nvcsw); 12051da177e4SLinus Torvalds err |= __put_user(r.ru_nivcsw, &ur->ru_nivcsw); 12061da177e4SLinus Torvalds 12071da177e4SLinus Torvalds return err ? err : ret; 12081da177e4SLinus Torvalds } 12091da177e4SLinus Torvalds 12101da177e4SLinus Torvalds /* 12111da177e4SLinus Torvalds * I don't know what the parameters are: the first one 12121da177e4SLinus Torvalds * seems to be a timeval pointer, and I suspect the second 12131da177e4SLinus Torvalds * one is the time remaining.. Ho humm.. No documentation. 12141da177e4SLinus Torvalds */ 1215e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_usleep_thread, struct timeval32 __user *, sleep, 1216e5d9a90cSIvan Kokshaysky struct timeval32 __user *, remain) 12171da177e4SLinus Torvalds { 12181da177e4SLinus Torvalds struct timeval tmp; 12191da177e4SLinus Torvalds unsigned long ticks; 12201da177e4SLinus Torvalds 12211da177e4SLinus Torvalds if (get_tv32(&tmp, sleep)) 12221da177e4SLinus Torvalds goto fault; 12231da177e4SLinus Torvalds 122424d568edSNishanth Aravamudan ticks = timeval_to_jiffies(&tmp); 12251da177e4SLinus Torvalds 122620c6abd1SNishanth Aravamudan ticks = schedule_timeout_interruptible(ticks); 12271da177e4SLinus Torvalds 12281da177e4SLinus Torvalds if (remain) { 122924d568edSNishanth Aravamudan jiffies_to_timeval(ticks, &tmp); 12301da177e4SLinus Torvalds if (put_tv32(remain, &tmp)) 12311da177e4SLinus Torvalds goto fault; 12321da177e4SLinus Torvalds } 12331da177e4SLinus Torvalds 12341da177e4SLinus Torvalds return 0; 12351da177e4SLinus Torvalds fault: 12361da177e4SLinus Torvalds return -EFAULT; 12371da177e4SLinus Torvalds } 12381da177e4SLinus Torvalds 12391da177e4SLinus Torvalds 12401da177e4SLinus Torvalds struct timex32 { 12411da177e4SLinus Torvalds unsigned int modes; /* mode selector */ 12421da177e4SLinus Torvalds long offset; /* time offset (usec) */ 12431da177e4SLinus Torvalds long freq; /* frequency offset (scaled ppm) */ 12441da177e4SLinus Torvalds long maxerror; /* maximum error (usec) */ 12451da177e4SLinus Torvalds long esterror; /* estimated error (usec) */ 12461da177e4SLinus Torvalds int status; /* clock command/status */ 12471da177e4SLinus Torvalds long constant; /* pll time constant */ 12481da177e4SLinus Torvalds long precision; /* clock precision (usec) (read only) */ 12491da177e4SLinus Torvalds long tolerance; /* clock frequency tolerance (ppm) 12501da177e4SLinus Torvalds * (read only) 12511da177e4SLinus Torvalds */ 12521da177e4SLinus Torvalds struct timeval32 time; /* (read only) */ 12531da177e4SLinus Torvalds long tick; /* (modified) usecs between clock ticks */ 12541da177e4SLinus Torvalds 12551da177e4SLinus Torvalds long ppsfreq; /* pps frequency (scaled ppm) (ro) */ 12561da177e4SLinus Torvalds long jitter; /* pps jitter (us) (ro) */ 12571da177e4SLinus Torvalds int shift; /* interval duration (s) (shift) (ro) */ 12581da177e4SLinus Torvalds long stabil; /* pps stability (scaled ppm) (ro) */ 12591da177e4SLinus Torvalds long jitcnt; /* jitter limit exceeded (ro) */ 12601da177e4SLinus Torvalds long calcnt; /* calibration intervals (ro) */ 12611da177e4SLinus Torvalds long errcnt; /* calibration errors (ro) */ 12621da177e4SLinus Torvalds long stbcnt; /* stability limit exceeded (ro) */ 12631da177e4SLinus Torvalds 12641da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 12651da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 12661da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 12671da177e4SLinus Torvalds }; 12681da177e4SLinus Torvalds 1269e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p) 12701da177e4SLinus Torvalds { 12711da177e4SLinus Torvalds struct timex txc; 12721da177e4SLinus Torvalds int ret; 12731da177e4SLinus Torvalds 12741da177e4SLinus Torvalds /* copy relevant bits of struct timex. */ 12751da177e4SLinus Torvalds if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) || 12761da177e4SLinus Torvalds copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) - 12771da177e4SLinus Torvalds offsetof(struct timex32, time))) 12781da177e4SLinus Torvalds return -EFAULT; 12791da177e4SLinus Torvalds 12801da177e4SLinus Torvalds ret = do_adjtimex(&txc); 12811da177e4SLinus Torvalds if (ret < 0) 12821da177e4SLinus Torvalds return ret; 12831da177e4SLinus Torvalds 12841da177e4SLinus Torvalds /* copy back to timex32 */ 12851da177e4SLinus Torvalds if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) || 12861da177e4SLinus Torvalds (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) - 12871da177e4SLinus Torvalds offsetof(struct timex32, tick))) || 12881da177e4SLinus Torvalds (put_tv32(&txc_p->time, &txc.time))) 12891da177e4SLinus Torvalds return -EFAULT; 12901da177e4SLinus Torvalds 12911da177e4SLinus Torvalds return ret; 12921da177e4SLinus Torvalds } 12931da177e4SLinus Torvalds 12941da177e4SLinus Torvalds /* Get an address range which is currently unmapped. Similar to the 12951da177e4SLinus Torvalds generic version except that we know how to honor ADDR_LIMIT_32BIT. */ 12961da177e4SLinus Torvalds 12971da177e4SLinus Torvalds static unsigned long 12981da177e4SLinus Torvalds arch_get_unmapped_area_1(unsigned long addr, unsigned long len, 12991da177e4SLinus Torvalds unsigned long limit) 13001da177e4SLinus Torvalds { 13016d1c7ccaSMichel Lespinasse struct vm_unmapped_area_info info; 13021da177e4SLinus Torvalds 13036d1c7ccaSMichel Lespinasse info.flags = 0; 13046d1c7ccaSMichel Lespinasse info.length = len; 13056d1c7ccaSMichel Lespinasse info.low_limit = addr; 13066d1c7ccaSMichel Lespinasse info.high_limit = limit; 13076d1c7ccaSMichel Lespinasse info.align_mask = 0; 13086d1c7ccaSMichel Lespinasse info.align_offset = 0; 13096d1c7ccaSMichel Lespinasse return vm_unmapped_area(&info); 13101da177e4SLinus Torvalds } 13111da177e4SLinus Torvalds 13121da177e4SLinus Torvalds unsigned long 13131da177e4SLinus Torvalds arch_get_unmapped_area(struct file *filp, unsigned long addr, 13141da177e4SLinus Torvalds unsigned long len, unsigned long pgoff, 13151da177e4SLinus Torvalds unsigned long flags) 13161da177e4SLinus Torvalds { 13171da177e4SLinus Torvalds unsigned long limit; 13181da177e4SLinus Torvalds 13191da177e4SLinus Torvalds /* "32 bit" actually means 31 bit, since pointers sign extend. */ 13201da177e4SLinus Torvalds if (current->personality & ADDR_LIMIT_32BIT) 13211da177e4SLinus Torvalds limit = 0x80000000; 13221da177e4SLinus Torvalds else 13231da177e4SLinus Torvalds limit = TASK_SIZE; 13241da177e4SLinus Torvalds 13251da177e4SLinus Torvalds if (len > limit) 13261da177e4SLinus Torvalds return -ENOMEM; 13271da177e4SLinus Torvalds 13284b87b3b2SBenjamin Herrenschmidt if (flags & MAP_FIXED) 13294b87b3b2SBenjamin Herrenschmidt return addr; 13304b87b3b2SBenjamin Herrenschmidt 13311da177e4SLinus Torvalds /* First, see if the given suggestion fits. 13321da177e4SLinus Torvalds 13331da177e4SLinus Torvalds The OSF/1 loader (/sbin/loader) relies on us returning an 13341da177e4SLinus Torvalds address larger than the requested if one exists, which is 13351da177e4SLinus Torvalds a terribly broken way to program. 13361da177e4SLinus Torvalds 13371da177e4SLinus Torvalds That said, I can see the use in being able to suggest not 13381da177e4SLinus Torvalds merely specific addresses, but regions of memory -- perhaps 13391da177e4SLinus Torvalds this feature should be incorporated into all ports? */ 13401da177e4SLinus Torvalds 13411da177e4SLinus Torvalds if (addr) { 13421da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit); 13431da177e4SLinus Torvalds if (addr != (unsigned long) -ENOMEM) 13441da177e4SLinus Torvalds return addr; 13451da177e4SLinus Torvalds } 13461da177e4SLinus Torvalds 13471da177e4SLinus Torvalds /* Next, try allocating at TASK_UNMAPPED_BASE. */ 13481da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE), 13491da177e4SLinus Torvalds len, limit); 13501da177e4SLinus Torvalds if (addr != (unsigned long) -ENOMEM) 13511da177e4SLinus Torvalds return addr; 13521da177e4SLinus Torvalds 13531da177e4SLinus Torvalds /* Finally, try allocating in low memory. */ 13541da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit); 13551da177e4SLinus Torvalds 13561da177e4SLinus Torvalds return addr; 13571da177e4SLinus Torvalds } 13581da177e4SLinus Torvalds 13591da177e4SLinus Torvalds #ifdef CONFIG_OSF4_COMPAT 13601da177e4SLinus Torvalds 13611da177e4SLinus Torvalds /* Clear top 32 bits of iov_len in the user's buffer for 13621da177e4SLinus Torvalds compatibility with old versions of OSF/1 where iov_len 13631da177e4SLinus Torvalds was defined as int. */ 13641da177e4SLinus Torvalds static int 13651da177e4SLinus Torvalds osf_fix_iov_len(const struct iovec __user *iov, unsigned long count) 13661da177e4SLinus Torvalds { 13671da177e4SLinus Torvalds unsigned long i; 13681da177e4SLinus Torvalds 13691da177e4SLinus Torvalds for (i = 0 ; i < count ; i++) { 13701da177e4SLinus Torvalds int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1; 13711da177e4SLinus Torvalds 13721da177e4SLinus Torvalds if (put_user(0, iov_len_high)) 13731da177e4SLinus Torvalds return -EFAULT; 13741da177e4SLinus Torvalds } 13751da177e4SLinus Torvalds return 0; 13761da177e4SLinus Torvalds } 13771da177e4SLinus Torvalds 1378e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_readv, unsigned long, fd, 1379e5d9a90cSIvan Kokshaysky const struct iovec __user *, vector, unsigned long, count) 13801da177e4SLinus Torvalds { 13811da177e4SLinus Torvalds if (unlikely(personality(current->personality) == PER_OSF4)) 13821da177e4SLinus Torvalds if (osf_fix_iov_len(vector, count)) 13831da177e4SLinus Torvalds return -EFAULT; 13841da177e4SLinus Torvalds return sys_readv(fd, vector, count); 13851da177e4SLinus Torvalds } 13861da177e4SLinus Torvalds 1387e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_writev, unsigned long, fd, 1388e5d9a90cSIvan Kokshaysky const struct iovec __user *, vector, unsigned long, count) 13891da177e4SLinus Torvalds { 13901da177e4SLinus Torvalds if (unlikely(personality(current->personality) == PER_OSF4)) 13911da177e4SLinus Torvalds if (osf_fix_iov_len(vector, count)) 13921da177e4SLinus Torvalds return -EFAULT; 13931da177e4SLinus Torvalds return sys_writev(fd, vector, count); 13941da177e4SLinus Torvalds } 13951da177e4SLinus Torvalds 13961da177e4SLinus Torvalds #endif 1397be53db6eSAl Viro 1398be53db6eSAl Viro SYSCALL_DEFINE2(osf_getpriority, int, which, int, who) 1399be53db6eSAl Viro { 1400be53db6eSAl Viro int prio = sys_getpriority(which, who); 1401be53db6eSAl Viro if (prio >= 0) { 1402be53db6eSAl Viro /* Return value is the unbiased priority, i.e. 20 - prio. 1403be53db6eSAl Viro This does result in negative return values, so signal 1404be53db6eSAl Viro no error */ 1405be53db6eSAl Viro force_successful_syscall_return(); 1406be53db6eSAl Viro prio = 20 - prio; 1407be53db6eSAl Viro } 1408be53db6eSAl Viro return prio; 1409be53db6eSAl Viro } 1410be53db6eSAl Viro 1411be53db6eSAl Viro SYSCALL_DEFINE0(getxuid) 1412be53db6eSAl Viro { 1413be53db6eSAl Viro current_pt_regs()->r20 = sys_geteuid(); 1414be53db6eSAl Viro return sys_getuid(); 1415be53db6eSAl Viro } 1416be53db6eSAl Viro 1417be53db6eSAl Viro SYSCALL_DEFINE0(getxgid) 1418be53db6eSAl Viro { 1419be53db6eSAl Viro current_pt_regs()->r20 = sys_getegid(); 1420be53db6eSAl Viro return sys_getgid(); 1421be53db6eSAl Viro } 1422be53db6eSAl Viro 1423be53db6eSAl Viro SYSCALL_DEFINE0(getxpid) 1424be53db6eSAl Viro { 1425be53db6eSAl Viro current_pt_regs()->r20 = sys_getppid(); 1426be53db6eSAl Viro return sys_getpid(); 1427be53db6eSAl Viro } 1428be53db6eSAl Viro 1429be53db6eSAl Viro SYSCALL_DEFINE0(alpha_pipe) 1430be53db6eSAl Viro { 1431be53db6eSAl Viro int fd[2]; 1432be53db6eSAl Viro int res = do_pipe_flags(fd, 0); 1433be53db6eSAl Viro if (!res) { 1434be53db6eSAl Viro /* The return values are in $0 and $20. */ 1435be53db6eSAl Viro current_pt_regs()->r20 = fd[1]; 1436be53db6eSAl Viro res = fd[0]; 1437be53db6eSAl Viro } 1438be53db6eSAl Viro return res; 1439be53db6eSAl Viro } 1440be53db6eSAl Viro 1441be53db6eSAl Viro SYSCALL_DEFINE1(sethae, unsigned long, val) 1442be53db6eSAl Viro { 1443be53db6eSAl Viro current_pt_regs()->hae = val; 1444be53db6eSAl Viro return 0; 1445be53db6eSAl Viro } 1446