1b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * linux/arch/alpha/kernel/osf_sys.c 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Copyright (C) 1995 Linus Torvalds 61da177e4SLinus Torvalds */ 71da177e4SLinus Torvalds 81da177e4SLinus Torvalds /* 91da177e4SLinus Torvalds * This file handles some of the stranger OSF/1 system call interfaces. 101da177e4SLinus Torvalds * Some of the system calls expect a non-C calling standard, others have 111da177e4SLinus Torvalds * special parameter blocks.. 121da177e4SLinus Torvalds */ 131da177e4SLinus Torvalds 141da177e4SLinus Torvalds #include <linux/errno.h> 153f07c014SIngo Molnar #include <linux/sched/signal.h> 1601042607SIngo Molnar #include <linux/sched/mm.h> 1768db0cf1SIngo Molnar #include <linux/sched/task_stack.h> 1832ef5517SIngo Molnar #include <linux/sched/cputime.h> 191da177e4SLinus Torvalds #include <linux/kernel.h> 201da177e4SLinus Torvalds #include <linux/mm.h> 211da177e4SLinus Torvalds #include <linux/smp.h> 221da177e4SLinus Torvalds #include <linux/stddef.h> 231da177e4SLinus Torvalds #include <linux/syscalls.h> 241da177e4SLinus Torvalds #include <linux/unistd.h> 251da177e4SLinus Torvalds #include <linux/ptrace.h> 261da177e4SLinus Torvalds #include <linux/user.h> 271da177e4SLinus Torvalds #include <linux/utsname.h> 281da177e4SLinus Torvalds #include <linux/time.h> 291da177e4SLinus Torvalds #include <linux/timex.h> 301da177e4SLinus Torvalds #include <linux/major.h> 311da177e4SLinus Torvalds #include <linux/stat.h> 321da177e4SLinus Torvalds #include <linux/mman.h> 331da177e4SLinus Torvalds #include <linux/shm.h> 341da177e4SLinus Torvalds #include <linux/poll.h> 351da177e4SLinus Torvalds #include <linux/file.h> 361da177e4SLinus Torvalds #include <linux/types.h> 371da177e4SLinus Torvalds #include <linux/ipc.h> 381da177e4SLinus Torvalds #include <linux/namei.h> 391da177e4SLinus Torvalds #include <linux/uio.h> 401da177e4SLinus Torvalds #include <linux/vfs.h> 414fb3a538SDipankar Sarma #include <linux/rcupdate.h> 425a0e3ad6STejun Heo #include <linux/slab.h> 431da177e4SLinus Torvalds 441da177e4SLinus Torvalds #include <asm/fpu.h> 451da177e4SLinus Torvalds #include <asm/io.h> 467c0f6ba6SLinus Torvalds #include <linux/uaccess.h> 471da177e4SLinus Torvalds #include <asm/sysinfo.h> 482df7a7d1SSergei Trofimovich #include <asm/thread_info.h> 491da177e4SLinus Torvalds #include <asm/hwrpb.h> 501da177e4SLinus Torvalds #include <asm/processor.h> 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds /* 531da177e4SLinus Torvalds * Brk needs to return an error. Still support Linux's brk(0) query idiom, 541da177e4SLinus Torvalds * which OSF programs just shouldn't be doing. We're still not quite 551da177e4SLinus Torvalds * identical to OSF as we don't return 0 on success, but doing otherwise 561da177e4SLinus Torvalds * would require changes to libc. Hopefully this is good enough. 571da177e4SLinus Torvalds */ 58e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(osf_brk, unsigned long, brk) 591da177e4SLinus Torvalds { 601da177e4SLinus Torvalds unsigned long retval = sys_brk(brk); 611da177e4SLinus Torvalds if (brk && brk != retval) 621da177e4SLinus Torvalds retval = -ENOMEM; 631da177e4SLinus Torvalds return retval; 641da177e4SLinus Torvalds } 651da177e4SLinus Torvalds 661da177e4SLinus Torvalds /* 671da177e4SLinus Torvalds * This is pure guess-work.. 681da177e4SLinus Torvalds */ 69e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start, 70e5d9a90cSIvan Kokshaysky unsigned long, text_len, unsigned long, bss_start, 71e5d9a90cSIvan Kokshaysky unsigned long, bss_len) 721da177e4SLinus Torvalds { 731da177e4SLinus Torvalds struct mm_struct *mm; 741da177e4SLinus Torvalds 751da177e4SLinus Torvalds mm = current->mm; 761da177e4SLinus Torvalds mm->end_code = bss_start + bss_len; 772444e56bSIvan Kokshaysky mm->start_brk = bss_start + bss_len; 781da177e4SLinus Torvalds mm->brk = bss_start + bss_len; 791da177e4SLinus Torvalds #if 0 801da177e4SLinus Torvalds printk("set_program_attributes(%lx %lx %lx %lx)\n", 811da177e4SLinus Torvalds text_start, text_len, bss_start, bss_len); 821da177e4SLinus Torvalds #endif 831da177e4SLinus Torvalds return 0; 841da177e4SLinus Torvalds } 851da177e4SLinus Torvalds 861da177e4SLinus Torvalds /* 871da177e4SLinus Torvalds * OSF/1 directory handling functions... 881da177e4SLinus Torvalds * 891da177e4SLinus Torvalds * The "getdents()" interface is much more sane: the "basep" stuff is 901da177e4SLinus Torvalds * braindamage (it can't really handle filesystems where the directory 911da177e4SLinus Torvalds * offset differences aren't the same as "d_reclen"). 921da177e4SLinus Torvalds */ 931da177e4SLinus Torvalds #define NAME_OFFSET offsetof (struct osf_dirent, d_name) 941da177e4SLinus Torvalds 951da177e4SLinus Torvalds struct osf_dirent { 961da177e4SLinus Torvalds unsigned int d_ino; 971da177e4SLinus Torvalds unsigned short d_reclen; 981da177e4SLinus Torvalds unsigned short d_namlen; 991da177e4SLinus Torvalds char d_name[1]; 1001da177e4SLinus Torvalds }; 1011da177e4SLinus Torvalds 1021da177e4SLinus Torvalds struct osf_dirent_callback { 1035c0ba4e0SAl Viro struct dir_context ctx; 1041da177e4SLinus Torvalds struct osf_dirent __user *dirent; 1051da177e4SLinus Torvalds long __user *basep; 1061da177e4SLinus Torvalds unsigned int count; 1071da177e4SLinus Torvalds int error; 1081da177e4SLinus Torvalds }; 1091da177e4SLinus Torvalds 1101da177e4SLinus Torvalds static int 111ac7576f4SMiklos Szeredi osf_filldir(struct dir_context *ctx, const char *name, int namlen, 112ac7576f4SMiklos Szeredi loff_t offset, u64 ino, unsigned int d_type) 1131da177e4SLinus Torvalds { 1141da177e4SLinus Torvalds struct osf_dirent __user *dirent; 115ac7576f4SMiklos Szeredi struct osf_dirent_callback *buf = 116ac7576f4SMiklos Szeredi container_of(ctx, struct osf_dirent_callback, ctx); 117180e53a7SMilind Arun Choudhary unsigned int reclen = ALIGN(NAME_OFFSET + namlen + 1, sizeof(u32)); 118afefdbb2SDavid Howells unsigned int d_ino; 1191da177e4SLinus Torvalds 1201da177e4SLinus Torvalds buf->error = -EINVAL; /* only used if we fail */ 1211da177e4SLinus Torvalds if (reclen > buf->count) 1221da177e4SLinus Torvalds return -EINVAL; 123afefdbb2SDavid Howells d_ino = ino; 124645e68edSAl Viro if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) { 125645e68edSAl Viro buf->error = -EOVERFLOW; 126afefdbb2SDavid Howells return -EOVERFLOW; 127645e68edSAl Viro } 1281da177e4SLinus Torvalds if (buf->basep) { 1291da177e4SLinus Torvalds if (put_user(offset, buf->basep)) 130645e68edSAl Viro goto Efault; 1311da177e4SLinus Torvalds buf->basep = NULL; 1321da177e4SLinus Torvalds } 1331da177e4SLinus Torvalds dirent = buf->dirent; 134645e68edSAl Viro if (put_user(d_ino, &dirent->d_ino) || 135645e68edSAl Viro put_user(namlen, &dirent->d_namlen) || 136645e68edSAl Viro put_user(reclen, &dirent->d_reclen) || 137645e68edSAl Viro copy_to_user(dirent->d_name, name, namlen) || 1381da177e4SLinus Torvalds put_user(0, dirent->d_name + namlen)) 139645e68edSAl Viro goto Efault; 1401da177e4SLinus Torvalds dirent = (void __user *)dirent + reclen; 1411da177e4SLinus Torvalds buf->dirent = dirent; 1421da177e4SLinus Torvalds buf->count -= reclen; 1431da177e4SLinus Torvalds return 0; 144645e68edSAl Viro Efault: 145645e68edSAl Viro buf->error = -EFAULT; 146645e68edSAl Viro return -EFAULT; 1471da177e4SLinus Torvalds } 1481da177e4SLinus Torvalds 149e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd, 150e5d9a90cSIvan Kokshaysky struct osf_dirent __user *, dirent, unsigned int, count, 151e5d9a90cSIvan Kokshaysky long __user *, basep) 1521da177e4SLinus Torvalds { 1531da177e4SLinus Torvalds int error; 15463b6df14SAl Viro struct fd arg = fdget_pos(fd); 155ac6614b7SAl Viro struct osf_dirent_callback buf = { 156ac6614b7SAl Viro .ctx.actor = osf_filldir, 157ac6614b7SAl Viro .dirent = dirent, 158ac6614b7SAl Viro .basep = basep, 159ac6614b7SAl Viro .count = count 160ac6614b7SAl Viro }; 1611da177e4SLinus Torvalds 1622903ff01SAl Viro if (!arg.file) 1632903ff01SAl Viro return -EBADF; 1641da177e4SLinus Torvalds 1655c0ba4e0SAl Viro error = iterate_dir(arg.file, &buf.ctx); 16653c9c5c0SAl Viro if (error >= 0) 1671da177e4SLinus Torvalds error = buf.error; 1681da177e4SLinus Torvalds if (count != buf.count) 1691da177e4SLinus Torvalds error = count - buf.count; 1701da177e4SLinus Torvalds 17163b6df14SAl Viro fdput_pos(arg); 1721da177e4SLinus Torvalds return error; 1731da177e4SLinus Torvalds } 1741da177e4SLinus Torvalds 1751da177e4SLinus Torvalds #undef NAME_OFFSET 1761da177e4SLinus Torvalds 177e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len, 178e5d9a90cSIvan Kokshaysky unsigned long, prot, unsigned long, flags, unsigned long, fd, 179e5d9a90cSIvan Kokshaysky unsigned long, off) 1801da177e4SLinus Torvalds { 181f8b72560SAl Viro unsigned long ret = -EINVAL; 1821da177e4SLinus Torvalds 1831da177e4SLinus Torvalds #if 0 1841da177e4SLinus Torvalds if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED)) 1851da177e4SLinus Torvalds printk("%s: unimplemented OSF mmap flags %04lx\n", 1861da177e4SLinus Torvalds current->comm, flags); 1871da177e4SLinus Torvalds #endif 188f8b72560SAl Viro if ((off + PAGE_ALIGN(len)) < off) 1891da177e4SLinus Torvalds goto out; 190f8b72560SAl Viro if (off & ~PAGE_MASK) 191f8b72560SAl Viro goto out; 192a90f590aSDominik Brodowski ret = ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); 1931da177e4SLinus Torvalds out: 1941da177e4SLinus Torvalds return ret; 1951da177e4SLinus Torvalds } 1961da177e4SLinus Torvalds 1977a8bb98cSMans Rullgard struct osf_stat { 1987a8bb98cSMans Rullgard int st_dev; 1997a8bb98cSMans Rullgard int st_pad1; 2007a8bb98cSMans Rullgard unsigned st_mode; 2017a8bb98cSMans Rullgard unsigned short st_nlink; 2027a8bb98cSMans Rullgard short st_nlink_reserved; 2037a8bb98cSMans Rullgard unsigned st_uid; 2047a8bb98cSMans Rullgard unsigned st_gid; 2057a8bb98cSMans Rullgard int st_rdev; 2067a8bb98cSMans Rullgard int st_ldev; 2077a8bb98cSMans Rullgard long st_size; 2087a8bb98cSMans Rullgard int st_pad2; 2097a8bb98cSMans Rullgard int st_uatime; 2107a8bb98cSMans Rullgard int st_pad3; 2117a8bb98cSMans Rullgard int st_umtime; 2127a8bb98cSMans Rullgard int st_pad4; 2137a8bb98cSMans Rullgard int st_uctime; 2147a8bb98cSMans Rullgard int st_pad5; 2157a8bb98cSMans Rullgard int st_pad6; 2167a8bb98cSMans Rullgard unsigned st_flags; 2177a8bb98cSMans Rullgard unsigned st_gen; 2187a8bb98cSMans Rullgard long st_spare[4]; 2197a8bb98cSMans Rullgard unsigned st_ino; 2207a8bb98cSMans Rullgard int st_ino_reserved; 2217a8bb98cSMans Rullgard int st_atime; 2227a8bb98cSMans Rullgard int st_atime_reserved; 2237a8bb98cSMans Rullgard int st_mtime; 2247a8bb98cSMans Rullgard int st_mtime_reserved; 2257a8bb98cSMans Rullgard int st_ctime; 2267a8bb98cSMans Rullgard int st_ctime_reserved; 2277a8bb98cSMans Rullgard long st_blksize; 2287a8bb98cSMans Rullgard long st_blocks; 2297a8bb98cSMans Rullgard }; 2301da177e4SLinus Torvalds 2311da177e4SLinus Torvalds /* 2321da177e4SLinus Torvalds * The OSF/1 statfs structure is much larger, but this should 2331da177e4SLinus Torvalds * match the beginning, at least. 2341da177e4SLinus Torvalds */ 2351da177e4SLinus Torvalds struct osf_statfs { 2361da177e4SLinus Torvalds short f_type; 2371da177e4SLinus Torvalds short f_flags; 2381da177e4SLinus Torvalds int f_fsize; 2391da177e4SLinus Torvalds int f_bsize; 2401da177e4SLinus Torvalds int f_blocks; 2411da177e4SLinus Torvalds int f_bfree; 2421da177e4SLinus Torvalds int f_bavail; 2431da177e4SLinus Torvalds int f_files; 2441da177e4SLinus Torvalds int f_ffree; 2451da177e4SLinus Torvalds __kernel_fsid_t f_fsid; 2461da177e4SLinus Torvalds }; 2471da177e4SLinus Torvalds 2487a8bb98cSMans Rullgard struct osf_statfs64 { 2497a8bb98cSMans Rullgard short f_type; 2507a8bb98cSMans Rullgard short f_flags; 2517a8bb98cSMans Rullgard int f_pad1; 2527a8bb98cSMans Rullgard int f_pad2; 2537a8bb98cSMans Rullgard int f_pad3; 2547a8bb98cSMans Rullgard int f_pad4; 2557a8bb98cSMans Rullgard int f_pad5; 2567a8bb98cSMans Rullgard int f_pad6; 2577a8bb98cSMans Rullgard int f_pad7; 2587a8bb98cSMans Rullgard __kernel_fsid_t f_fsid; 2597a8bb98cSMans Rullgard u_short f_namemax; 2607a8bb98cSMans Rullgard short f_reserved1; 2617a8bb98cSMans Rullgard int f_spare[8]; 2627a8bb98cSMans Rullgard char f_pad8[90]; 2637a8bb98cSMans Rullgard char f_pad9[90]; 2647a8bb98cSMans Rullgard long mount_info[10]; 2657a8bb98cSMans Rullgard u_long f_flags2; 2667a8bb98cSMans Rullgard long f_spare2[14]; 2677a8bb98cSMans Rullgard long f_fsize; 2687a8bb98cSMans Rullgard long f_bsize; 2697a8bb98cSMans Rullgard long f_blocks; 2707a8bb98cSMans Rullgard long f_bfree; 2717a8bb98cSMans Rullgard long f_bavail; 2727a8bb98cSMans Rullgard long f_files; 2737a8bb98cSMans Rullgard long f_ffree; 2747a8bb98cSMans Rullgard }; 2757a8bb98cSMans Rullgard 2767a8bb98cSMans Rullgard static int 2777a8bb98cSMans Rullgard linux_to_osf_stat(struct kstat *lstat, struct osf_stat __user *osf_stat) 2787a8bb98cSMans Rullgard { 2797a8bb98cSMans Rullgard struct osf_stat tmp = { 0 }; 2807a8bb98cSMans Rullgard 2817a8bb98cSMans Rullgard tmp.st_dev = lstat->dev; 2827a8bb98cSMans Rullgard tmp.st_mode = lstat->mode; 2837a8bb98cSMans Rullgard tmp.st_nlink = lstat->nlink; 284f31389d5SEric W. Biederman tmp.st_uid = from_kuid_munged(current_user_ns(), lstat->uid); 285f31389d5SEric W. Biederman tmp.st_gid = from_kgid_munged(current_user_ns(), lstat->gid); 2867a8bb98cSMans Rullgard tmp.st_rdev = lstat->rdev; 2877a8bb98cSMans Rullgard tmp.st_ldev = lstat->rdev; 2887a8bb98cSMans Rullgard tmp.st_size = lstat->size; 2897a8bb98cSMans Rullgard tmp.st_uatime = lstat->atime.tv_nsec / 1000; 2907a8bb98cSMans Rullgard tmp.st_umtime = lstat->mtime.tv_nsec / 1000; 2917a8bb98cSMans Rullgard tmp.st_uctime = lstat->ctime.tv_nsec / 1000; 2927a8bb98cSMans Rullgard tmp.st_ino = lstat->ino; 2937a8bb98cSMans Rullgard tmp.st_atime = lstat->atime.tv_sec; 2947a8bb98cSMans Rullgard tmp.st_mtime = lstat->mtime.tv_sec; 2957a8bb98cSMans Rullgard tmp.st_ctime = lstat->ctime.tv_sec; 2967a8bb98cSMans Rullgard tmp.st_blksize = lstat->blksize; 2977a8bb98cSMans Rullgard tmp.st_blocks = lstat->blocks; 2987a8bb98cSMans Rullgard 2997a8bb98cSMans Rullgard return copy_to_user(osf_stat, &tmp, sizeof(tmp)) ? -EFAULT : 0; 3007a8bb98cSMans Rullgard } 3017a8bb98cSMans Rullgard 3021da177e4SLinus Torvalds static int 3031da177e4SLinus Torvalds linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat, 3041da177e4SLinus Torvalds unsigned long bufsiz) 3051da177e4SLinus Torvalds { 3061da177e4SLinus Torvalds struct osf_statfs tmp_stat; 3071da177e4SLinus Torvalds 3081da177e4SLinus Torvalds tmp_stat.f_type = linux_stat->f_type; 3091da177e4SLinus Torvalds tmp_stat.f_flags = 0; /* mount flags */ 3101da177e4SLinus Torvalds tmp_stat.f_fsize = linux_stat->f_frsize; 3111da177e4SLinus Torvalds tmp_stat.f_bsize = linux_stat->f_bsize; 3121da177e4SLinus Torvalds tmp_stat.f_blocks = linux_stat->f_blocks; 3131da177e4SLinus Torvalds tmp_stat.f_bfree = linux_stat->f_bfree; 3141da177e4SLinus Torvalds tmp_stat.f_bavail = linux_stat->f_bavail; 3151da177e4SLinus Torvalds tmp_stat.f_files = linux_stat->f_files; 3161da177e4SLinus Torvalds tmp_stat.f_ffree = linux_stat->f_ffree; 3171da177e4SLinus Torvalds tmp_stat.f_fsid = linux_stat->f_fsid; 3181da177e4SLinus Torvalds if (bufsiz > sizeof(tmp_stat)) 3191da177e4SLinus Torvalds bufsiz = sizeof(tmp_stat); 3201da177e4SLinus Torvalds return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0; 3211da177e4SLinus Torvalds } 3221da177e4SLinus Torvalds 3237a8bb98cSMans Rullgard static int 3247a8bb98cSMans Rullgard linux_to_osf_statfs64(struct kstatfs *linux_stat, struct osf_statfs64 __user *osf_stat, 3257a8bb98cSMans Rullgard unsigned long bufsiz) 3267a8bb98cSMans Rullgard { 3277a8bb98cSMans Rullgard struct osf_statfs64 tmp_stat = { 0 }; 3287a8bb98cSMans Rullgard 3297a8bb98cSMans Rullgard tmp_stat.f_type = linux_stat->f_type; 3307a8bb98cSMans Rullgard tmp_stat.f_fsize = linux_stat->f_frsize; 3317a8bb98cSMans Rullgard tmp_stat.f_bsize = linux_stat->f_bsize; 3327a8bb98cSMans Rullgard tmp_stat.f_blocks = linux_stat->f_blocks; 3337a8bb98cSMans Rullgard tmp_stat.f_bfree = linux_stat->f_bfree; 3347a8bb98cSMans Rullgard tmp_stat.f_bavail = linux_stat->f_bavail; 3357a8bb98cSMans Rullgard tmp_stat.f_files = linux_stat->f_files; 3367a8bb98cSMans Rullgard tmp_stat.f_ffree = linux_stat->f_ffree; 3377a8bb98cSMans Rullgard tmp_stat.f_fsid = linux_stat->f_fsid; 3387a8bb98cSMans Rullgard if (bufsiz > sizeof(tmp_stat)) 3397a8bb98cSMans Rullgard bufsiz = sizeof(tmp_stat); 3407a8bb98cSMans Rullgard return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0; 3417a8bb98cSMans Rullgard } 3427a8bb98cSMans Rullgard 343c8b91accSAl Viro SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname, 344c8b91accSAl Viro struct osf_statfs __user *, buffer, unsigned long, bufsiz) 3451da177e4SLinus Torvalds { 3461da177e4SLinus Torvalds struct kstatfs linux_stat; 347c8b91accSAl Viro int error = user_statfs(pathname, &linux_stat); 3481da177e4SLinus Torvalds if (!error) 3491da177e4SLinus Torvalds error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz); 3501da177e4SLinus Torvalds return error; 3511da177e4SLinus Torvalds } 3521da177e4SLinus Torvalds 3537a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_stat, char __user *, name, struct osf_stat __user *, buf) 3547a8bb98cSMans Rullgard { 3557a8bb98cSMans Rullgard struct kstat stat; 3567a8bb98cSMans Rullgard int error; 3577a8bb98cSMans Rullgard 3587a8bb98cSMans Rullgard error = vfs_stat(name, &stat); 3597a8bb98cSMans Rullgard if (error) 3607a8bb98cSMans Rullgard return error; 3617a8bb98cSMans Rullgard 3627a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3637a8bb98cSMans Rullgard } 3647a8bb98cSMans Rullgard 3657a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_lstat, char __user *, name, struct osf_stat __user *, buf) 3667a8bb98cSMans Rullgard { 3677a8bb98cSMans Rullgard struct kstat stat; 3687a8bb98cSMans Rullgard int error; 3697a8bb98cSMans Rullgard 3707a8bb98cSMans Rullgard error = vfs_lstat(name, &stat); 3717a8bb98cSMans Rullgard if (error) 3727a8bb98cSMans Rullgard return error; 3737a8bb98cSMans Rullgard 3747a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3757a8bb98cSMans Rullgard } 3767a8bb98cSMans Rullgard 3777a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_fstat, int, fd, struct osf_stat __user *, buf) 3787a8bb98cSMans Rullgard { 3797a8bb98cSMans Rullgard struct kstat stat; 3807a8bb98cSMans Rullgard int error; 3817a8bb98cSMans Rullgard 3827a8bb98cSMans Rullgard error = vfs_fstat(fd, &stat); 3837a8bb98cSMans Rullgard if (error) 3847a8bb98cSMans Rullgard return error; 3857a8bb98cSMans Rullgard 3867a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3877a8bb98cSMans Rullgard } 3887a8bb98cSMans Rullgard 389e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd, 390e5d9a90cSIvan Kokshaysky struct osf_statfs __user *, buffer, unsigned long, bufsiz) 3911da177e4SLinus Torvalds { 392c8b91accSAl Viro struct kstatfs linux_stat; 393c8b91accSAl Viro int error = fd_statfs(fd, &linux_stat); 394c8b91accSAl Viro if (!error) 395c8b91accSAl Viro error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz); 396c8b91accSAl Viro return error; 3971da177e4SLinus Torvalds } 3981da177e4SLinus Torvalds 3997a8bb98cSMans Rullgard SYSCALL_DEFINE3(osf_statfs64, char __user *, pathname, 4007a8bb98cSMans Rullgard struct osf_statfs64 __user *, buffer, unsigned long, bufsiz) 4017a8bb98cSMans Rullgard { 4027a8bb98cSMans Rullgard struct kstatfs linux_stat; 4037a8bb98cSMans Rullgard int error = user_statfs(pathname, &linux_stat); 4047a8bb98cSMans Rullgard if (!error) 4057a8bb98cSMans Rullgard error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz); 4067a8bb98cSMans Rullgard return error; 4077a8bb98cSMans Rullgard } 4087a8bb98cSMans Rullgard 4097a8bb98cSMans Rullgard SYSCALL_DEFINE3(osf_fstatfs64, unsigned long, fd, 4107a8bb98cSMans Rullgard struct osf_statfs64 __user *, buffer, unsigned long, bufsiz) 4117a8bb98cSMans Rullgard { 4127a8bb98cSMans Rullgard struct kstatfs linux_stat; 4137a8bb98cSMans Rullgard int error = fd_statfs(fd, &linux_stat); 4147a8bb98cSMans Rullgard if (!error) 4157a8bb98cSMans Rullgard error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz); 4167a8bb98cSMans Rullgard return error; 4177a8bb98cSMans Rullgard } 4187a8bb98cSMans Rullgard 4191da177e4SLinus Torvalds /* 4201da177e4SLinus Torvalds * Uhh.. OSF/1 mount parameters aren't exactly obvious.. 4211da177e4SLinus Torvalds * 4221da177e4SLinus Torvalds * Although to be frank, neither are the native Linux/i386 ones.. 4231da177e4SLinus Torvalds */ 4241da177e4SLinus Torvalds struct ufs_args { 4251da177e4SLinus Torvalds char __user *devname; 4261da177e4SLinus Torvalds int flags; 4271da177e4SLinus Torvalds uid_t exroot; 4281da177e4SLinus Torvalds }; 4291da177e4SLinus Torvalds 4301da177e4SLinus Torvalds struct cdfs_args { 4311da177e4SLinus Torvalds char __user *devname; 4321da177e4SLinus Torvalds int flags; 4331da177e4SLinus Torvalds uid_t exroot; 4341da177e4SLinus Torvalds 4351da177e4SLinus Torvalds /* This has lots more here, which Linux handles with the option block 4361da177e4SLinus Torvalds but I'm too lazy to do the translation into ASCII. */ 4371da177e4SLinus Torvalds }; 4381da177e4SLinus Torvalds 4391da177e4SLinus Torvalds struct procfs_args { 4401da177e4SLinus Torvalds char __user *devname; 4411da177e4SLinus Torvalds int flags; 4421da177e4SLinus Torvalds uid_t exroot; 4431da177e4SLinus Torvalds }; 4441da177e4SLinus Torvalds 4451da177e4SLinus Torvalds /* 4461da177e4SLinus Torvalds * We can't actually handle ufs yet, so we translate UFS mounts to 4471da177e4SLinus Torvalds * ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS 4481da177e4SLinus Torvalds * layout is so braindead it's a major headache doing it. 4491da177e4SLinus Torvalds * 4501da177e4SLinus Torvalds * Just how long ago was it written? OTOH our UFS driver may be still 4511da177e4SLinus Torvalds * unhappy with OSF UFS. [CHECKME] 4521da177e4SLinus Torvalds */ 4531da177e4SLinus Torvalds static int 4545e6123f3SSeunghun Lee osf_ufs_mount(const char __user *dirname, 4555e6123f3SSeunghun Lee struct ufs_args __user *args, int flags) 4561da177e4SLinus Torvalds { 4571da177e4SLinus Torvalds int retval; 4581da177e4SLinus Torvalds struct cdfs_args tmp; 45991a27b2aSJeff Layton struct filename *devname; 4601da177e4SLinus Torvalds 4611da177e4SLinus Torvalds retval = -EFAULT; 4621da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 4631da177e4SLinus Torvalds goto out; 4641da177e4SLinus Torvalds devname = getname(tmp.devname); 4651da177e4SLinus Torvalds retval = PTR_ERR(devname); 4661da177e4SLinus Torvalds if (IS_ERR(devname)) 4671da177e4SLinus Torvalds goto out; 46891a27b2aSJeff Layton retval = do_mount(devname->name, dirname, "ext2", flags, NULL); 4691da177e4SLinus Torvalds putname(devname); 4701da177e4SLinus Torvalds out: 4711da177e4SLinus Torvalds return retval; 4721da177e4SLinus Torvalds } 4731da177e4SLinus Torvalds 4741da177e4SLinus Torvalds static int 4755e6123f3SSeunghun Lee osf_cdfs_mount(const char __user *dirname, 4765e6123f3SSeunghun Lee struct cdfs_args __user *args, int flags) 4771da177e4SLinus Torvalds { 4781da177e4SLinus Torvalds int retval; 4791da177e4SLinus Torvalds struct cdfs_args tmp; 48091a27b2aSJeff Layton struct filename *devname; 4811da177e4SLinus Torvalds 4821da177e4SLinus Torvalds retval = -EFAULT; 4831da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 4841da177e4SLinus Torvalds goto out; 4851da177e4SLinus Torvalds devname = getname(tmp.devname); 4861da177e4SLinus Torvalds retval = PTR_ERR(devname); 4871da177e4SLinus Torvalds if (IS_ERR(devname)) 4881da177e4SLinus Torvalds goto out; 48991a27b2aSJeff Layton retval = do_mount(devname->name, dirname, "iso9660", flags, NULL); 4901da177e4SLinus Torvalds putname(devname); 4911da177e4SLinus Torvalds out: 4921da177e4SLinus Torvalds return retval; 4931da177e4SLinus Torvalds } 4941da177e4SLinus Torvalds 4951da177e4SLinus Torvalds static int 4965e6123f3SSeunghun Lee osf_procfs_mount(const char __user *dirname, 4975e6123f3SSeunghun Lee struct procfs_args __user *args, int flags) 4981da177e4SLinus Torvalds { 4991da177e4SLinus Torvalds struct procfs_args tmp; 5001da177e4SLinus Torvalds 5011da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 5021da177e4SLinus Torvalds return -EFAULT; 5031da177e4SLinus Torvalds 5041da177e4SLinus Torvalds return do_mount("", dirname, "proc", flags, NULL); 5051da177e4SLinus Torvalds } 5061da177e4SLinus Torvalds 507c7887325SDavid Howells SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path, 508e5d9a90cSIvan Kokshaysky int, flag, void __user *, data) 5091da177e4SLinus Torvalds { 51077079dbeSRoel Kluin int retval; 5111da177e4SLinus Torvalds 5121da177e4SLinus Torvalds switch (typenr) { 5131da177e4SLinus Torvalds case 1: 5145e6123f3SSeunghun Lee retval = osf_ufs_mount(path, data, flag); 5151da177e4SLinus Torvalds break; 5161da177e4SLinus Torvalds case 6: 5175e6123f3SSeunghun Lee retval = osf_cdfs_mount(path, data, flag); 5181da177e4SLinus Torvalds break; 5191da177e4SLinus Torvalds case 9: 5205e6123f3SSeunghun Lee retval = osf_procfs_mount(path, data, flag); 5211da177e4SLinus Torvalds break; 5221da177e4SLinus Torvalds default: 52377079dbeSRoel Kluin retval = -EINVAL; 5241da177e4SLinus Torvalds printk("osf_mount(%ld, %x)\n", typenr, flag); 5251da177e4SLinus Torvalds } 5265e6123f3SSeunghun Lee 5271da177e4SLinus Torvalds return retval; 5281da177e4SLinus Torvalds } 5291da177e4SLinus Torvalds 530e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(osf_utsname, char __user *, name) 5311da177e4SLinus Torvalds { 53242a0cc34SJann Horn char tmp[5 * 32]; 5331da177e4SLinus Torvalds 5341da177e4SLinus Torvalds down_read(&uts_sem); 53542a0cc34SJann Horn memcpy(tmp + 0 * 32, utsname()->sysname, 32); 53642a0cc34SJann Horn memcpy(tmp + 1 * 32, utsname()->nodename, 32); 53742a0cc34SJann Horn memcpy(tmp + 2 * 32, utsname()->release, 32); 53842a0cc34SJann Horn memcpy(tmp + 3 * 32, utsname()->version, 32); 53942a0cc34SJann Horn memcpy(tmp + 4 * 32, utsname()->machine, 32); 5401da177e4SLinus Torvalds up_read(&uts_sem); 54142a0cc34SJann Horn 54242a0cc34SJann Horn if (copy_to_user(name, tmp, sizeof(tmp))) 54342a0cc34SJann Horn return -EFAULT; 54442a0cc34SJann Horn return 0; 5451da177e4SLinus Torvalds } 5461da177e4SLinus Torvalds 547e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE0(getpagesize) 5481da177e4SLinus Torvalds { 5491da177e4SLinus Torvalds return PAGE_SIZE; 5501da177e4SLinus Torvalds } 5511da177e4SLinus Torvalds 552e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE0(getdtablesize) 5531da177e4SLinus Torvalds { 5549cfe015aSEric Dumazet return sysctl_nr_open; 5551da177e4SLinus Torvalds } 5561da177e4SLinus Torvalds 5571da177e4SLinus Torvalds /* 5581da177e4SLinus Torvalds * For compatibility with OSF/1 only. Use utsname(2) instead. 5591da177e4SLinus Torvalds */ 560e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen) 5611da177e4SLinus Torvalds { 5621c3243f6SMatt Turner int len; 5639ba3eb51SAl Viro char *kname; 56442a0cc34SJann Horn char tmp[32]; 5651da177e4SLinus Torvalds 56642a0cc34SJann Horn if (namelen < 0 || namelen > 32) 5679ba3eb51SAl Viro namelen = 32; 5681da177e4SLinus Torvalds 5691da177e4SLinus Torvalds down_read(&uts_sem); 5709ba3eb51SAl Viro kname = utsname()->domainname; 5719ba3eb51SAl Viro len = strnlen(kname, namelen); 57242a0cc34SJann Horn len = min(len + 1, namelen); 57342a0cc34SJann Horn memcpy(tmp, kname, len); 5741da177e4SLinus Torvalds up_read(&uts_sem); 5751da177e4SLinus Torvalds 57642a0cc34SJann Horn if (copy_to_user(name, tmp, len)) 57742a0cc34SJann Horn return -EFAULT; 57842a0cc34SJann Horn return 0; 5791da177e4SLinus Torvalds } 5801da177e4SLinus Torvalds 5811da177e4SLinus Torvalds /* 5821da177e4SLinus Torvalds * The following stuff should move into a header file should it ever 5831da177e4SLinus Torvalds * be labeled "officially supported." Right now, there is just enough 5841da177e4SLinus Torvalds * support to avoid applications (such as tar) printing error 5851da177e4SLinus Torvalds * messages. The attributes are not really implemented. 5861da177e4SLinus Torvalds */ 5871da177e4SLinus Torvalds 5881da177e4SLinus Torvalds /* 5891da177e4SLinus Torvalds * Values for Property list entry flag 5901da177e4SLinus Torvalds */ 5911da177e4SLinus Torvalds #define PLE_PROPAGATE_ON_COPY 0x1 /* cp(1) will copy entry 5921da177e4SLinus Torvalds by default */ 5931da177e4SLinus Torvalds #define PLE_FLAG_MASK 0x1 /* Valid flag values */ 5941da177e4SLinus Torvalds #define PLE_FLAG_ALL -1 /* All flag value */ 5951da177e4SLinus Torvalds 5961da177e4SLinus Torvalds struct proplistname_args { 5971da177e4SLinus Torvalds unsigned int pl_mask; 5981da177e4SLinus Torvalds unsigned int pl_numnames; 5991da177e4SLinus Torvalds char **pl_names; 6001da177e4SLinus Torvalds }; 6011da177e4SLinus Torvalds 6021da177e4SLinus Torvalds union pl_args { 6031da177e4SLinus Torvalds struct setargs { 6041da177e4SLinus Torvalds char __user *path; 6051da177e4SLinus Torvalds long follow; 6061da177e4SLinus Torvalds long nbytes; 6071da177e4SLinus Torvalds char __user *buf; 6081da177e4SLinus Torvalds } set; 6091da177e4SLinus Torvalds struct fsetargs { 6101da177e4SLinus Torvalds long fd; 6111da177e4SLinus Torvalds long nbytes; 6121da177e4SLinus Torvalds char __user *buf; 6131da177e4SLinus Torvalds } fset; 6141da177e4SLinus Torvalds struct getargs { 6151da177e4SLinus Torvalds char __user *path; 6161da177e4SLinus Torvalds long follow; 6171da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6181da177e4SLinus Torvalds long nbytes; 6191da177e4SLinus Torvalds char __user *buf; 6201da177e4SLinus Torvalds int __user *min_buf_size; 6211da177e4SLinus Torvalds } get; 6221da177e4SLinus Torvalds struct fgetargs { 6231da177e4SLinus Torvalds long fd; 6241da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6251da177e4SLinus Torvalds long nbytes; 6261da177e4SLinus Torvalds char __user *buf; 6271da177e4SLinus Torvalds int __user *min_buf_size; 6281da177e4SLinus Torvalds } fget; 6291da177e4SLinus Torvalds struct delargs { 6301da177e4SLinus Torvalds char __user *path; 6311da177e4SLinus Torvalds long follow; 6321da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6331da177e4SLinus Torvalds } del; 6341da177e4SLinus Torvalds struct fdelargs { 6351da177e4SLinus Torvalds long fd; 6361da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6371da177e4SLinus Torvalds } fdel; 6381da177e4SLinus Torvalds }; 6391da177e4SLinus Torvalds 6401da177e4SLinus Torvalds enum pl_code { 6411da177e4SLinus Torvalds PL_SET = 1, PL_FSET = 2, 6421da177e4SLinus Torvalds PL_GET = 3, PL_FGET = 4, 6431da177e4SLinus Torvalds PL_DEL = 5, PL_FDEL = 6 6441da177e4SLinus Torvalds }; 6451da177e4SLinus Torvalds 646e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code, 647e5d9a90cSIvan Kokshaysky union pl_args __user *, args) 6481da177e4SLinus Torvalds { 6491da177e4SLinus Torvalds long error; 6501da177e4SLinus Torvalds int __user *min_buf_size_ptr; 6511da177e4SLinus Torvalds 6521da177e4SLinus Torvalds switch (code) { 6531da177e4SLinus Torvalds case PL_SET: 6541da177e4SLinus Torvalds if (get_user(error, &args->set.nbytes)) 6551da177e4SLinus Torvalds error = -EFAULT; 6561da177e4SLinus Torvalds break; 6571da177e4SLinus Torvalds case PL_FSET: 6581da177e4SLinus Torvalds if (get_user(error, &args->fset.nbytes)) 6591da177e4SLinus Torvalds error = -EFAULT; 6601da177e4SLinus Torvalds break; 6611da177e4SLinus Torvalds case PL_GET: 6621da177e4SLinus Torvalds error = get_user(min_buf_size_ptr, &args->get.min_buf_size); 6631da177e4SLinus Torvalds if (error) 6641da177e4SLinus Torvalds break; 6651da177e4SLinus Torvalds error = put_user(0, min_buf_size_ptr); 6661da177e4SLinus Torvalds break; 6671da177e4SLinus Torvalds case PL_FGET: 6681da177e4SLinus Torvalds error = get_user(min_buf_size_ptr, &args->fget.min_buf_size); 6691da177e4SLinus Torvalds if (error) 6701da177e4SLinus Torvalds break; 6711da177e4SLinus Torvalds error = put_user(0, min_buf_size_ptr); 6721da177e4SLinus Torvalds break; 6731da177e4SLinus Torvalds case PL_DEL: 6741da177e4SLinus Torvalds case PL_FDEL: 6751da177e4SLinus Torvalds error = 0; 6761da177e4SLinus Torvalds break; 6771da177e4SLinus Torvalds default: 6781da177e4SLinus Torvalds error = -EOPNOTSUPP; 6791da177e4SLinus Torvalds break; 6801da177e4SLinus Torvalds }; 6811da177e4SLinus Torvalds return error; 6821da177e4SLinus Torvalds } 6831da177e4SLinus Torvalds 684e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss, 685e5d9a90cSIvan Kokshaysky struct sigstack __user *, uoss) 6861da177e4SLinus Torvalds { 6871da177e4SLinus Torvalds unsigned long usp = rdusp(); 6881da177e4SLinus Torvalds unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size; 6891da177e4SLinus Torvalds unsigned long oss_os = on_sig_stack(usp); 6901da177e4SLinus Torvalds int error; 6911da177e4SLinus Torvalds 6921da177e4SLinus Torvalds if (uss) { 6931da177e4SLinus Torvalds void __user *ss_sp; 6941da177e4SLinus Torvalds 6951da177e4SLinus Torvalds error = -EFAULT; 6961da177e4SLinus Torvalds if (get_user(ss_sp, &uss->ss_sp)) 6971da177e4SLinus Torvalds goto out; 6981da177e4SLinus Torvalds 6991da177e4SLinus Torvalds /* If the current stack was set with sigaltstack, don't 7001da177e4SLinus Torvalds swap stacks while we are on it. */ 7011da177e4SLinus Torvalds error = -EPERM; 7021da177e4SLinus Torvalds if (current->sas_ss_sp && on_sig_stack(usp)) 7031da177e4SLinus Torvalds goto out; 7041da177e4SLinus Torvalds 7051da177e4SLinus Torvalds /* Since we don't know the extent of the stack, and we don't 7061da177e4SLinus Torvalds track onstack-ness, but rather calculate it, we must 7071da177e4SLinus Torvalds presume a size. Ho hum this interface is lossy. */ 7081da177e4SLinus Torvalds current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ; 7091da177e4SLinus Torvalds current->sas_ss_size = SIGSTKSZ; 7101da177e4SLinus Torvalds } 7111da177e4SLinus Torvalds 7121da177e4SLinus Torvalds if (uoss) { 7131da177e4SLinus Torvalds error = -EFAULT; 7148d2fd30eSAl Viro if (put_user(oss_sp, &uoss->ss_sp) || 7158d2fd30eSAl Viro put_user(oss_os, &uoss->ss_onstack)) 7161da177e4SLinus Torvalds goto out; 7171da177e4SLinus Torvalds } 7181da177e4SLinus Torvalds 7191da177e4SLinus Torvalds error = 0; 7201da177e4SLinus Torvalds out: 7211da177e4SLinus Torvalds return error; 7221da177e4SLinus Torvalds } 7231da177e4SLinus Torvalds 724e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count) 7251da177e4SLinus Torvalds { 72631019075SJoe Perches const char *sysinfo_table[] = { 727e9ff3990SSerge E. Hallyn utsname()->sysname, 728e9ff3990SSerge E. Hallyn utsname()->nodename, 729e9ff3990SSerge E. Hallyn utsname()->release, 730e9ff3990SSerge E. Hallyn utsname()->version, 731e9ff3990SSerge E. Hallyn utsname()->machine, 7321da177e4SLinus Torvalds "alpha", /* instruction set architecture */ 7331da177e4SLinus Torvalds "dummy", /* hardware serial number */ 7341da177e4SLinus Torvalds "dummy", /* hardware manufacturer */ 7351da177e4SLinus Torvalds "dummy", /* secure RPC domain */ 7361da177e4SLinus Torvalds }; 7371da177e4SLinus Torvalds unsigned long offset; 73831019075SJoe Perches const char *res; 73942a0cc34SJann Horn long len; 74042a0cc34SJann Horn char tmp[__NEW_UTS_LEN + 1]; 7411da177e4SLinus Torvalds 7421da177e4SLinus Torvalds offset = command-1; 74325c8716cSTobias Klauser if (offset >= ARRAY_SIZE(sysinfo_table)) { 7441da177e4SLinus Torvalds /* Digital UNIX has a few unpublished interfaces here */ 7451da177e4SLinus Torvalds printk("sysinfo(%d)", command); 74642a0cc34SJann Horn return -EINVAL; 7471da177e4SLinus Torvalds } 7481da177e4SLinus Torvalds 7491da177e4SLinus Torvalds down_read(&uts_sem); 7501da177e4SLinus Torvalds res = sysinfo_table[offset]; 7511da177e4SLinus Torvalds len = strlen(res)+1; 75221c5977aSDan Rosenberg if ((unsigned long)len > (unsigned long)count) 7531da177e4SLinus Torvalds len = count; 75442a0cc34SJann Horn memcpy(tmp, res, len); 7551da177e4SLinus Torvalds up_read(&uts_sem); 75642a0cc34SJann Horn if (copy_to_user(buf, tmp, len)) 75742a0cc34SJann Horn return -EFAULT; 75842a0cc34SJann Horn return 0; 7591da177e4SLinus Torvalds } 7601da177e4SLinus Torvalds 761e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer, 762e5d9a90cSIvan Kokshaysky unsigned long, nbytes, int __user *, start, void __user *, arg) 7631da177e4SLinus Torvalds { 7641da177e4SLinus Torvalds unsigned long w; 7651da177e4SLinus Torvalds struct percpu_struct *cpu; 7661da177e4SLinus Torvalds 7671da177e4SLinus Torvalds switch (op) { 7681da177e4SLinus Torvalds case GSI_IEEE_FP_CONTROL: 7691da177e4SLinus Torvalds /* Return current software fp control & status bits. */ 7701da177e4SLinus Torvalds /* Note that DU doesn't verify available space here. */ 7711da177e4SLinus Torvalds 7721da177e4SLinus Torvalds w = current_thread_info()->ieee_state & IEEE_SW_MASK; 7731da177e4SLinus Torvalds w = swcr_update_status(w, rdfpcr()); 7741da177e4SLinus Torvalds if (put_user(w, (unsigned long __user *) buffer)) 7751da177e4SLinus Torvalds return -EFAULT; 7761da177e4SLinus Torvalds return 0; 7771da177e4SLinus Torvalds 7781da177e4SLinus Torvalds case GSI_IEEE_STATE_AT_SIGNAL: 7791da177e4SLinus Torvalds /* 7801da177e4SLinus Torvalds * Not sure anybody will ever use this weird stuff. These 7811da177e4SLinus Torvalds * ops can be used (under OSF/1) to set the fpcr that should 7821da177e4SLinus Torvalds * be used when a signal handler starts executing. 7831da177e4SLinus Torvalds */ 7841da177e4SLinus Torvalds break; 7851da177e4SLinus Torvalds 7861da177e4SLinus Torvalds case GSI_UACPROC: 7871da177e4SLinus Torvalds if (nbytes < sizeof(unsigned int)) 7881da177e4SLinus Torvalds return -EINVAL; 7893185bd26SAl Viro w = current_thread_info()->status & UAC_BITMASK; 7901da177e4SLinus Torvalds if (put_user(w, (unsigned int __user *)buffer)) 7911da177e4SLinus Torvalds return -EFAULT; 7921da177e4SLinus Torvalds return 1; 7931da177e4SLinus Torvalds 7941da177e4SLinus Torvalds case GSI_PROC_TYPE: 7951da177e4SLinus Torvalds if (nbytes < sizeof(unsigned long)) 7961da177e4SLinus Torvalds return -EINVAL; 7971da177e4SLinus Torvalds cpu = (struct percpu_struct*) 7981da177e4SLinus Torvalds ((char*)hwrpb + hwrpb->processor_offset); 7991da177e4SLinus Torvalds w = cpu->type; 8001da177e4SLinus Torvalds if (put_user(w, (unsigned long __user*)buffer)) 8011da177e4SLinus Torvalds return -EFAULT; 8021da177e4SLinus Torvalds return 1; 8031da177e4SLinus Torvalds 8041da177e4SLinus Torvalds case GSI_GET_HWRPB: 80521c5977aSDan Rosenberg if (nbytes > sizeof(*hwrpb)) 8061da177e4SLinus Torvalds return -EINVAL; 8071da177e4SLinus Torvalds if (copy_to_user(buffer, hwrpb, nbytes) != 0) 8081da177e4SLinus Torvalds return -EFAULT; 8091da177e4SLinus Torvalds return 1; 8101da177e4SLinus Torvalds 8111da177e4SLinus Torvalds default: 8121da177e4SLinus Torvalds break; 8131da177e4SLinus Torvalds } 8141da177e4SLinus Torvalds 8151da177e4SLinus Torvalds return -EOPNOTSUPP; 8161da177e4SLinus Torvalds } 8171da177e4SLinus Torvalds 818e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer, 819e5d9a90cSIvan Kokshaysky unsigned long, nbytes, int __user *, start, void __user *, arg) 8201da177e4SLinus Torvalds { 8211da177e4SLinus Torvalds switch (op) { 8221da177e4SLinus Torvalds case SSI_IEEE_FP_CONTROL: { 8231da177e4SLinus Torvalds unsigned long swcr, fpcr; 8241da177e4SLinus Torvalds unsigned int *state; 8251da177e4SLinus Torvalds 8261da177e4SLinus Torvalds /* 8271da177e4SLinus Torvalds * Alpha Architecture Handbook 4.7.7.3: 8281da177e4SLinus Torvalds * To be fully IEEE compiant, we must track the current IEEE 829c3a2ddeeSSimon Arlott * exception state in software, because spurious bits can be 8301da177e4SLinus Torvalds * set in the trap shadow of a software-complete insn. 8311da177e4SLinus Torvalds */ 8321da177e4SLinus Torvalds 8331da177e4SLinus Torvalds if (get_user(swcr, (unsigned long __user *)buffer)) 8341da177e4SLinus Torvalds return -EFAULT; 8351da177e4SLinus Torvalds state = ¤t_thread_info()->ieee_state; 8361da177e4SLinus Torvalds 8371da177e4SLinus Torvalds /* Update softare trap enable bits. */ 8381da177e4SLinus Torvalds *state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK); 8391da177e4SLinus Torvalds 8401da177e4SLinus Torvalds /* Update the real fpcr. */ 8411da177e4SLinus Torvalds fpcr = rdfpcr() & FPCR_DYN_MASK; 8421da177e4SLinus Torvalds fpcr |= ieee_swcr_to_fpcr(swcr); 8431da177e4SLinus Torvalds wrfpcr(fpcr); 8441da177e4SLinus Torvalds 8451da177e4SLinus Torvalds return 0; 8461da177e4SLinus Torvalds } 8471da177e4SLinus Torvalds 8481da177e4SLinus Torvalds case SSI_IEEE_RAISE_EXCEPTION: { 8491da177e4SLinus Torvalds unsigned long exc, swcr, fpcr, fex; 8501da177e4SLinus Torvalds unsigned int *state; 8511da177e4SLinus Torvalds 8521da177e4SLinus Torvalds if (get_user(exc, (unsigned long __user *)buffer)) 8531da177e4SLinus Torvalds return -EFAULT; 8541da177e4SLinus Torvalds state = ¤t_thread_info()->ieee_state; 8551da177e4SLinus Torvalds exc &= IEEE_STATUS_MASK; 8561da177e4SLinus Torvalds 8571da177e4SLinus Torvalds /* Update softare trap enable bits. */ 8581da177e4SLinus Torvalds swcr = (*state & IEEE_SW_MASK) | exc; 8591da177e4SLinus Torvalds *state |= exc; 8601da177e4SLinus Torvalds 8611da177e4SLinus Torvalds /* Update the real fpcr. */ 8621da177e4SLinus Torvalds fpcr = rdfpcr(); 8631da177e4SLinus Torvalds fpcr |= ieee_swcr_to_fpcr(swcr); 8641da177e4SLinus Torvalds wrfpcr(fpcr); 8651da177e4SLinus Torvalds 8661da177e4SLinus Torvalds /* If any exceptions set by this call, and are unmasked, 8671da177e4SLinus Torvalds send a signal. Old exceptions are not signaled. */ 8681da177e4SLinus Torvalds fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr; 8691da177e4SLinus Torvalds if (fex) { 8704cc13e4fSEric W. Biederman int si_code = FPE_FLTUNK; 8711da177e4SLinus Torvalds 8721da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND; 8731da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES; 8741da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND; 8751da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF; 8761da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV; 8771da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV; 8781da177e4SLinus Torvalds 8795f50245bSEric W. Biederman send_sig_fault(SIGFPE, si_code, 8805f50245bSEric W. Biederman (void __user *)NULL, /* FIXME */ 8815f50245bSEric W. Biederman 0, current); 8821da177e4SLinus Torvalds } 8831da177e4SLinus Torvalds return 0; 8841da177e4SLinus Torvalds } 8851da177e4SLinus Torvalds 8861da177e4SLinus Torvalds case SSI_IEEE_STATE_AT_SIGNAL: 8871da177e4SLinus Torvalds case SSI_IEEE_IGNORE_STATE_AT_SIGNAL: 8881da177e4SLinus Torvalds /* 8891da177e4SLinus Torvalds * Not sure anybody will ever use this weird stuff. These 8901da177e4SLinus Torvalds * ops can be used (under OSF/1) to set the fpcr that should 8911da177e4SLinus Torvalds * be used when a signal handler starts executing. 8921da177e4SLinus Torvalds */ 8931da177e4SLinus Torvalds break; 8941da177e4SLinus Torvalds 8951da177e4SLinus Torvalds case SSI_NVPAIRS: { 8963185bd26SAl Viro unsigned __user *p = buffer; 8973185bd26SAl Viro unsigned i; 8981da177e4SLinus Torvalds 8993185bd26SAl Viro for (i = 0, p = buffer; i < nbytes; ++i, p += 2) { 9003185bd26SAl Viro unsigned v, w, status; 9011da177e4SLinus Torvalds 9023185bd26SAl Viro if (get_user(v, p) || get_user(w, p + 1)) 9031da177e4SLinus Torvalds return -EFAULT; 9041da177e4SLinus Torvalds switch (v) { 9051da177e4SLinus Torvalds case SSIN_UACPROC: 9063185bd26SAl Viro w &= UAC_BITMASK; 9073185bd26SAl Viro status = current_thread_info()->status; 9083185bd26SAl Viro status = (status & ~UAC_BITMASK) | w; 9093185bd26SAl Viro current_thread_info()->status = status; 9101da177e4SLinus Torvalds break; 9111da177e4SLinus Torvalds 9121da177e4SLinus Torvalds default: 9131da177e4SLinus Torvalds return -EOPNOTSUPP; 9141da177e4SLinus Torvalds } 9151da177e4SLinus Torvalds } 9161da177e4SLinus Torvalds return 0; 9171da177e4SLinus Torvalds } 9181da177e4SLinus Torvalds 91950744deeSMans Rullgard case SSI_LMF: 92050744deeSMans Rullgard return 0; 92150744deeSMans Rullgard 9221da177e4SLinus Torvalds default: 9231da177e4SLinus Torvalds break; 9241da177e4SLinus Torvalds } 9251da177e4SLinus Torvalds 9261da177e4SLinus Torvalds return -EOPNOTSUPP; 9271da177e4SLinus Torvalds } 9281da177e4SLinus Torvalds 9291da177e4SLinus Torvalds /* Translations due to the fact that OSF's time_t is an int. Which 9301da177e4SLinus Torvalds affects all sorts of things, like timeval and itimerval. */ 9311da177e4SLinus Torvalds 9321da177e4SLinus Torvalds extern struct timezone sys_tz; 9331da177e4SLinus Torvalds 9341da177e4SLinus Torvalds struct timeval32 9351da177e4SLinus Torvalds { 9361da177e4SLinus Torvalds int tv_sec, tv_usec; 9371da177e4SLinus Torvalds }; 9381da177e4SLinus Torvalds 9391da177e4SLinus Torvalds struct itimerval32 9401da177e4SLinus Torvalds { 9411da177e4SLinus Torvalds struct timeval32 it_interval; 9421da177e4SLinus Torvalds struct timeval32 it_value; 9431da177e4SLinus Torvalds }; 9441da177e4SLinus Torvalds 9451da177e4SLinus Torvalds static inline long 946ce4c2535SArnd Bergmann get_tv32(struct timespec64 *o, struct timeval32 __user *i) 9471da177e4SLinus Torvalds { 9481cc6c463SAl Viro struct timeval32 tv; 9491cc6c463SAl Viro if (copy_from_user(&tv, i, sizeof(struct timeval32))) 9501cc6c463SAl Viro return -EFAULT; 9511cc6c463SAl Viro o->tv_sec = tv.tv_sec; 952ce4c2535SArnd Bergmann o->tv_nsec = tv.tv_usec * NSEC_PER_USEC; 9531cc6c463SAl Viro return 0; 9541da177e4SLinus Torvalds } 9551da177e4SLinus Torvalds 9561da177e4SLinus Torvalds static inline long 957ce4c2535SArnd Bergmann put_tv32(struct timeval32 __user *o, struct timespec64 *i) 958ce4c2535SArnd Bergmann { 959ce4c2535SArnd Bergmann return copy_to_user(o, &(struct timeval32){ 960ce4c2535SArnd Bergmann .tv_sec = i->tv_sec, 961ce4c2535SArnd Bergmann .tv_usec = i->tv_nsec / NSEC_PER_USEC}, 962ce4c2535SArnd Bergmann sizeof(struct timeval32)); 963ce4c2535SArnd Bergmann } 964ce4c2535SArnd Bergmann 965ce4c2535SArnd Bergmann static inline long 966bdd565f8SArnd Bergmann put_tv_to_tv32(struct timeval32 __user *o, struct __kernel_old_timeval *i) 9671da177e4SLinus Torvalds { 9681cc6c463SAl Viro return copy_to_user(o, &(struct timeval32){ 96947669fb6SArnd Bergmann .tv_sec = i->tv_sec, 97047669fb6SArnd Bergmann .tv_usec = i->tv_usec}, 9711cc6c463SAl Viro sizeof(struct timeval32)); 9721da177e4SLinus Torvalds } 9731da177e4SLinus Torvalds 9741da177e4SLinus Torvalds static inline long 9751da177e4SLinus Torvalds get_it32(struct itimerval *o, struct itimerval32 __user *i) 9761da177e4SLinus Torvalds { 9771cc6c463SAl Viro struct itimerval32 itv; 9781cc6c463SAl Viro if (copy_from_user(&itv, i, sizeof(struct itimerval32))) 9791cc6c463SAl Viro return -EFAULT; 9801cc6c463SAl Viro o->it_interval.tv_sec = itv.it_interval.tv_sec; 9811cc6c463SAl Viro o->it_interval.tv_usec = itv.it_interval.tv_usec; 9821cc6c463SAl Viro o->it_value.tv_sec = itv.it_value.tv_sec; 9831cc6c463SAl Viro o->it_value.tv_usec = itv.it_value.tv_usec; 9841cc6c463SAl Viro return 0; 9851da177e4SLinus Torvalds } 9861da177e4SLinus Torvalds 9871da177e4SLinus Torvalds static inline long 9881da177e4SLinus Torvalds put_it32(struct itimerval32 __user *o, struct itimerval *i) 9891da177e4SLinus Torvalds { 9901cc6c463SAl Viro return copy_to_user(o, &(struct itimerval32){ 9911cc6c463SAl Viro .it_interval.tv_sec = o->it_interval.tv_sec, 9921cc6c463SAl Viro .it_interval.tv_usec = o->it_interval.tv_usec, 9931cc6c463SAl Viro .it_value.tv_sec = o->it_value.tv_sec, 9941cc6c463SAl Viro .it_value.tv_usec = o->it_value.tv_usec}, 9951cc6c463SAl Viro sizeof(struct itimerval32)); 9961da177e4SLinus Torvalds } 9971da177e4SLinus Torvalds 9981da177e4SLinus Torvalds static inline void 9991da177e4SLinus Torvalds jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value) 10001da177e4SLinus Torvalds { 10011da177e4SLinus Torvalds value->tv_usec = (jiffies % HZ) * (1000000L / HZ); 10021da177e4SLinus Torvalds value->tv_sec = jiffies / HZ; 10031da177e4SLinus Torvalds } 10041da177e4SLinus Torvalds 1005e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv, 1006e5d9a90cSIvan Kokshaysky struct timezone __user *, tz) 10071da177e4SLinus Torvalds { 10081da177e4SLinus Torvalds if (tv) { 1009ce4c2535SArnd Bergmann struct timespec64 kts; 1010ce4c2535SArnd Bergmann 1011ce4c2535SArnd Bergmann ktime_get_real_ts64(&kts); 1012ce4c2535SArnd Bergmann if (put_tv32(tv, &kts)) 10131da177e4SLinus Torvalds return -EFAULT; 10141da177e4SLinus Torvalds } 10151da177e4SLinus Torvalds if (tz) { 10161da177e4SLinus Torvalds if (copy_to_user(tz, &sys_tz, sizeof(sys_tz))) 10171da177e4SLinus Torvalds return -EFAULT; 10181da177e4SLinus Torvalds } 10191da177e4SLinus Torvalds return 0; 10201da177e4SLinus Torvalds } 10211da177e4SLinus Torvalds 1022e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv, 1023e5d9a90cSIvan Kokshaysky struct timezone __user *, tz) 10241da177e4SLinus Torvalds { 1025ce4c2535SArnd Bergmann struct timespec64 kts; 10261da177e4SLinus Torvalds struct timezone ktz; 10271da177e4SLinus Torvalds 10281da177e4SLinus Torvalds if (tv) { 1029ce4c2535SArnd Bergmann if (get_tv32(&kts, tv)) 10301da177e4SLinus Torvalds return -EFAULT; 10311da177e4SLinus Torvalds } 10321da177e4SLinus Torvalds if (tz) { 10331da177e4SLinus Torvalds if (copy_from_user(&ktz, tz, sizeof(*tz))) 10341da177e4SLinus Torvalds return -EFAULT; 10351da177e4SLinus Torvalds } 10361da177e4SLinus Torvalds 1037ce4c2535SArnd Bergmann return do_sys_settimeofday64(tv ? &kts : NULL, tz ? &ktz : NULL); 10381da177e4SLinus Torvalds } 10391da177e4SLinus Torvalds 1040baa73d9eSNicolas Pitre asmlinkage long sys_ni_posix_timers(void); 1041baa73d9eSNicolas Pitre 1042e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_getitimer, int, which, struct itimerval32 __user *, it) 10431da177e4SLinus Torvalds { 10441da177e4SLinus Torvalds struct itimerval kit; 10451da177e4SLinus Torvalds int error; 10461da177e4SLinus Torvalds 1047baa73d9eSNicolas Pitre if (!IS_ENABLED(CONFIG_POSIX_TIMERS)) 1048baa73d9eSNicolas Pitre return sys_ni_posix_timers(); 1049baa73d9eSNicolas Pitre 10501da177e4SLinus Torvalds error = do_getitimer(which, &kit); 10511da177e4SLinus Torvalds if (!error && put_it32(it, &kit)) 10521da177e4SLinus Torvalds error = -EFAULT; 10531da177e4SLinus Torvalds 10541da177e4SLinus Torvalds return error; 10551da177e4SLinus Torvalds } 10561da177e4SLinus Torvalds 1057e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_setitimer, int, which, struct itimerval32 __user *, in, 1058e5d9a90cSIvan Kokshaysky struct itimerval32 __user *, out) 10591da177e4SLinus Torvalds { 10601da177e4SLinus Torvalds struct itimerval kin, kout; 10611da177e4SLinus Torvalds int error; 10621da177e4SLinus Torvalds 1063baa73d9eSNicolas Pitre if (!IS_ENABLED(CONFIG_POSIX_TIMERS)) 1064baa73d9eSNicolas Pitre return sys_ni_posix_timers(); 1065baa73d9eSNicolas Pitre 10661da177e4SLinus Torvalds if (in) { 10671da177e4SLinus Torvalds if (get_it32(&kin, in)) 10681da177e4SLinus Torvalds return -EFAULT; 10691da177e4SLinus Torvalds } else 10701da177e4SLinus Torvalds memset(&kin, 0, sizeof(kin)); 10711da177e4SLinus Torvalds 10721da177e4SLinus Torvalds error = do_setitimer(which, &kin, out ? &kout : NULL); 10731da177e4SLinus Torvalds if (error || !out) 10741da177e4SLinus Torvalds return error; 10751da177e4SLinus Torvalds 10761da177e4SLinus Torvalds if (put_it32(out, &kout)) 10771da177e4SLinus Torvalds return -EFAULT; 10781da177e4SLinus Torvalds 10791da177e4SLinus Torvalds return 0; 10801da177e4SLinus Torvalds 10811da177e4SLinus Torvalds } 10821da177e4SLinus Torvalds 1083c7887325SDavid Howells SYSCALL_DEFINE2(osf_utimes, const char __user *, filename, 1084e5d9a90cSIvan Kokshaysky struct timeval32 __user *, tvs) 10851da177e4SLinus Torvalds { 1086ce4c2535SArnd Bergmann struct timespec64 tv[2]; 10871da177e4SLinus Torvalds 10881da177e4SLinus Torvalds if (tvs) { 1089ce4c2535SArnd Bergmann if (get_tv32(&tv[0], &tvs[0]) || 1090ce4c2535SArnd Bergmann get_tv32(&tv[1], &tvs[1])) 10911da177e4SLinus Torvalds return -EFAULT; 10921c710c89SUlrich Drepper 1093ce4c2535SArnd Bergmann if (tv[0].tv_nsec < 0 || tv[0].tv_nsec >= 1000000000 || 1094ce4c2535SArnd Bergmann tv[1].tv_nsec < 0 || tv[1].tv_nsec >= 1000000000) 10951c710c89SUlrich Drepper return -EINVAL; 10961da177e4SLinus Torvalds } 10971da177e4SLinus Torvalds 10981c710c89SUlrich Drepper return do_utimes(AT_FDCWD, filename, tvs ? tv : NULL, 0); 10991da177e4SLinus Torvalds } 11001da177e4SLinus Torvalds 1101e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE5(osf_select, int, n, fd_set __user *, inp, fd_set __user *, outp, 1102e5d9a90cSIvan Kokshaysky fd_set __user *, exp, struct timeval32 __user *, tvp) 11031da177e4SLinus Torvalds { 1104ce4c2535SArnd Bergmann struct timespec64 end_time, *to = NULL; 11051da177e4SLinus Torvalds if (tvp) { 1106ce4c2535SArnd Bergmann struct timespec64 tv; 110714e2acd8SArjan van de Ven to = &end_time; 110814e2acd8SArjan van de Ven 11091cc6c463SAl Viro if (get_tv32(&tv, tvp)) 1110a2dcb44cSAl Viro return -EFAULT; 11111da177e4SLinus Torvalds 1112ce4c2535SArnd Bergmann if (tv.tv_sec < 0 || tv.tv_nsec < 0) 1113a2dcb44cSAl Viro return -EINVAL; 11141da177e4SLinus Torvalds 1115ce4c2535SArnd Bergmann if (poll_select_set_timeout(to, tv.tv_sec, tv.tv_nsec)) 111614e2acd8SArjan van de Ven return -EINVAL; 111714e2acd8SArjan van de Ven 11181da177e4SLinus Torvalds } 11191da177e4SLinus Torvalds 11201da177e4SLinus Torvalds /* OSF does not copy back the remaining time. */ 112114e2acd8SArjan van de Ven return core_sys_select(n, inp, outp, exp, to); 11221da177e4SLinus Torvalds } 11231da177e4SLinus Torvalds 11241da177e4SLinus Torvalds struct rusage32 { 11251da177e4SLinus Torvalds struct timeval32 ru_utime; /* user time used */ 11261da177e4SLinus Torvalds struct timeval32 ru_stime; /* system time used */ 11271da177e4SLinus Torvalds long ru_maxrss; /* maximum resident set size */ 11281da177e4SLinus Torvalds long ru_ixrss; /* integral shared memory size */ 11291da177e4SLinus Torvalds long ru_idrss; /* integral unshared data size */ 11301da177e4SLinus Torvalds long ru_isrss; /* integral unshared stack size */ 11311da177e4SLinus Torvalds long ru_minflt; /* page reclaims */ 11321da177e4SLinus Torvalds long ru_majflt; /* page faults */ 11331da177e4SLinus Torvalds long ru_nswap; /* swaps */ 11341da177e4SLinus Torvalds long ru_inblock; /* block input operations */ 11351da177e4SLinus Torvalds long ru_oublock; /* block output operations */ 11361da177e4SLinus Torvalds long ru_msgsnd; /* messages sent */ 11371da177e4SLinus Torvalds long ru_msgrcv; /* messages received */ 11381da177e4SLinus Torvalds long ru_nsignals; /* signals received */ 11391da177e4SLinus Torvalds long ru_nvcsw; /* voluntary context switches */ 11401da177e4SLinus Torvalds long ru_nivcsw; /* involuntary " */ 11411da177e4SLinus Torvalds }; 11421da177e4SLinus Torvalds 1143e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru) 11441da177e4SLinus Torvalds { 11451da177e4SLinus Torvalds struct rusage32 r; 1146dc9b77b5SFrederic Weisbecker u64 utime, stime; 11472019e8a3SFrederic Weisbecker unsigned long utime_jiffies, stime_jiffies; 11481da177e4SLinus Torvalds 11491da177e4SLinus Torvalds if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN) 11501da177e4SLinus Torvalds return -EINVAL; 11511da177e4SLinus Torvalds 11521da177e4SLinus Torvalds memset(&r, 0, sizeof(r)); 11531da177e4SLinus Torvalds switch (who) { 11541da177e4SLinus Torvalds case RUSAGE_SELF: 1155dc9b77b5SFrederic Weisbecker task_cputime(current, &utime, &stime); 1156dc9b77b5SFrederic Weisbecker utime_jiffies = nsecs_to_jiffies(utime); 1157dc9b77b5SFrederic Weisbecker stime_jiffies = nsecs_to_jiffies(stime); 11582019e8a3SFrederic Weisbecker jiffies_to_timeval32(utime_jiffies, &r.ru_utime); 11592019e8a3SFrederic Weisbecker jiffies_to_timeval32(stime_jiffies, &r.ru_stime); 11601da177e4SLinus Torvalds r.ru_minflt = current->min_flt; 11611da177e4SLinus Torvalds r.ru_majflt = current->maj_flt; 11621da177e4SLinus Torvalds break; 11631da177e4SLinus Torvalds case RUSAGE_CHILDREN: 11645613fda9SFrederic Weisbecker utime_jiffies = nsecs_to_jiffies(current->signal->cutime); 11655613fda9SFrederic Weisbecker stime_jiffies = nsecs_to_jiffies(current->signal->cstime); 11662019e8a3SFrederic Weisbecker jiffies_to_timeval32(utime_jiffies, &r.ru_utime); 11672019e8a3SFrederic Weisbecker jiffies_to_timeval32(stime_jiffies, &r.ru_stime); 11681da177e4SLinus Torvalds r.ru_minflt = current->signal->cmin_flt; 11691da177e4SLinus Torvalds r.ru_majflt = current->signal->cmaj_flt; 11701da177e4SLinus Torvalds break; 11711da177e4SLinus Torvalds } 11721da177e4SLinus Torvalds 11731da177e4SLinus Torvalds return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0; 11741da177e4SLinus Torvalds } 11751da177e4SLinus Torvalds 1176e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options, 1177e5d9a90cSIvan Kokshaysky struct rusage32 __user *, ur) 11781da177e4SLinus Torvalds { 117992ebce5aSAl Viro struct rusage r; 1180f88a333bSAl Viro long err = kernel_wait4(pid, ustatus, options, &r); 118192ebce5aSAl Viro if (err <= 0) 118292ebce5aSAl Viro return err; 118392ebce5aSAl Viro if (!ur) 118492ebce5aSAl Viro return err; 1185ce4c2535SArnd Bergmann if (put_tv_to_tv32(&ur->ru_utime, &r.ru_utime)) 118692ebce5aSAl Viro return -EFAULT; 1187ce4c2535SArnd Bergmann if (put_tv_to_tv32(&ur->ru_stime, &r.ru_stime)) 118892ebce5aSAl Viro return -EFAULT; 118992ebce5aSAl Viro if (copy_to_user(&ur->ru_maxrss, &r.ru_maxrss, 119092ebce5aSAl Viro sizeof(struct rusage32) - offsetof(struct rusage32, ru_maxrss))) 119192ebce5aSAl Viro return -EFAULT; 119292ebce5aSAl Viro return err; 11931da177e4SLinus Torvalds } 11941da177e4SLinus Torvalds 11951da177e4SLinus Torvalds /* 11961da177e4SLinus Torvalds * I don't know what the parameters are: the first one 11971da177e4SLinus Torvalds * seems to be a timeval pointer, and I suspect the second 11981da177e4SLinus Torvalds * one is the time remaining.. Ho humm.. No documentation. 11991da177e4SLinus Torvalds */ 1200e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_usleep_thread, struct timeval32 __user *, sleep, 1201e5d9a90cSIvan Kokshaysky struct timeval32 __user *, remain) 12021da177e4SLinus Torvalds { 1203ce4c2535SArnd Bergmann struct timespec64 tmp; 12041da177e4SLinus Torvalds unsigned long ticks; 12051da177e4SLinus Torvalds 12061da177e4SLinus Torvalds if (get_tv32(&tmp, sleep)) 12071da177e4SLinus Torvalds goto fault; 12081da177e4SLinus Torvalds 1209ce4c2535SArnd Bergmann ticks = timespec64_to_jiffies(&tmp); 12101da177e4SLinus Torvalds 121120c6abd1SNishanth Aravamudan ticks = schedule_timeout_interruptible(ticks); 12121da177e4SLinus Torvalds 12131da177e4SLinus Torvalds if (remain) { 1214ce4c2535SArnd Bergmann jiffies_to_timespec64(ticks, &tmp); 12151da177e4SLinus Torvalds if (put_tv32(remain, &tmp)) 12161da177e4SLinus Torvalds goto fault; 12171da177e4SLinus Torvalds } 12181da177e4SLinus Torvalds 12191da177e4SLinus Torvalds return 0; 12201da177e4SLinus Torvalds fault: 12211da177e4SLinus Torvalds return -EFAULT; 12221da177e4SLinus Torvalds } 12231da177e4SLinus Torvalds 12241da177e4SLinus Torvalds 12251da177e4SLinus Torvalds struct timex32 { 12261da177e4SLinus Torvalds unsigned int modes; /* mode selector */ 12271da177e4SLinus Torvalds long offset; /* time offset (usec) */ 12281da177e4SLinus Torvalds long freq; /* frequency offset (scaled ppm) */ 12291da177e4SLinus Torvalds long maxerror; /* maximum error (usec) */ 12301da177e4SLinus Torvalds long esterror; /* estimated error (usec) */ 12311da177e4SLinus Torvalds int status; /* clock command/status */ 12321da177e4SLinus Torvalds long constant; /* pll time constant */ 12331da177e4SLinus Torvalds long precision; /* clock precision (usec) (read only) */ 12341da177e4SLinus Torvalds long tolerance; /* clock frequency tolerance (ppm) 12351da177e4SLinus Torvalds * (read only) 12361da177e4SLinus Torvalds */ 12371da177e4SLinus Torvalds struct timeval32 time; /* (read only) */ 12381da177e4SLinus Torvalds long tick; /* (modified) usecs between clock ticks */ 12391da177e4SLinus Torvalds 12401da177e4SLinus Torvalds long ppsfreq; /* pps frequency (scaled ppm) (ro) */ 12411da177e4SLinus Torvalds long jitter; /* pps jitter (us) (ro) */ 12421da177e4SLinus Torvalds int shift; /* interval duration (s) (shift) (ro) */ 12431da177e4SLinus Torvalds long stabil; /* pps stability (scaled ppm) (ro) */ 12441da177e4SLinus Torvalds long jitcnt; /* jitter limit exceeded (ro) */ 12451da177e4SLinus Torvalds long calcnt; /* calibration intervals (ro) */ 12461da177e4SLinus Torvalds long errcnt; /* calibration errors (ro) */ 12471da177e4SLinus Torvalds long stbcnt; /* stability limit exceeded (ro) */ 12481da177e4SLinus Torvalds 12491da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 12501da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 12511da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 12521da177e4SLinus Torvalds }; 12531da177e4SLinus Torvalds 1254e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p) 12551da177e4SLinus Torvalds { 1256ead25417SDeepa Dinamani struct __kernel_timex txc; 12571da177e4SLinus Torvalds int ret; 12581da177e4SLinus Torvalds 12591da177e4SLinus Torvalds /* copy relevant bits of struct timex. */ 12601da177e4SLinus Torvalds if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) || 12611da177e4SLinus Torvalds copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) - 12622b5efc08SAl Viro offsetof(struct timex32, tick))) 12631da177e4SLinus Torvalds return -EFAULT; 12641da177e4SLinus Torvalds 12651da177e4SLinus Torvalds ret = do_adjtimex(&txc); 12661da177e4SLinus Torvalds if (ret < 0) 12671da177e4SLinus Torvalds return ret; 12681da177e4SLinus Torvalds 12691da177e4SLinus Torvalds /* copy back to timex32 */ 12701da177e4SLinus Torvalds if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) || 12711da177e4SLinus Torvalds (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) - 12721da177e4SLinus Torvalds offsetof(struct timex32, tick))) || 1273ead25417SDeepa Dinamani (put_user(txc.time.tv_sec, &txc_p->time.tv_sec)) || 1274ead25417SDeepa Dinamani (put_user(txc.time.tv_usec, &txc_p->time.tv_usec))) 12751da177e4SLinus Torvalds return -EFAULT; 12761da177e4SLinus Torvalds 12771da177e4SLinus Torvalds return ret; 12781da177e4SLinus Torvalds } 12791da177e4SLinus Torvalds 12801da177e4SLinus Torvalds /* Get an address range which is currently unmapped. Similar to the 12811da177e4SLinus Torvalds generic version except that we know how to honor ADDR_LIMIT_32BIT. */ 12821da177e4SLinus Torvalds 12831da177e4SLinus Torvalds static unsigned long 12841da177e4SLinus Torvalds arch_get_unmapped_area_1(unsigned long addr, unsigned long len, 12851da177e4SLinus Torvalds unsigned long limit) 12861da177e4SLinus Torvalds { 12876d1c7ccaSMichel Lespinasse struct vm_unmapped_area_info info; 12881da177e4SLinus Torvalds 12896d1c7ccaSMichel Lespinasse info.flags = 0; 12906d1c7ccaSMichel Lespinasse info.length = len; 12916d1c7ccaSMichel Lespinasse info.low_limit = addr; 12926d1c7ccaSMichel Lespinasse info.high_limit = limit; 12936d1c7ccaSMichel Lespinasse info.align_mask = 0; 12946d1c7ccaSMichel Lespinasse info.align_offset = 0; 12956d1c7ccaSMichel Lespinasse return vm_unmapped_area(&info); 12961da177e4SLinus Torvalds } 12971da177e4SLinus Torvalds 12981da177e4SLinus Torvalds unsigned long 12991da177e4SLinus Torvalds arch_get_unmapped_area(struct file *filp, unsigned long addr, 13001da177e4SLinus Torvalds unsigned long len, unsigned long pgoff, 13011da177e4SLinus Torvalds unsigned long flags) 13021da177e4SLinus Torvalds { 13031da177e4SLinus Torvalds unsigned long limit; 13041da177e4SLinus Torvalds 13051da177e4SLinus Torvalds /* "32 bit" actually means 31 bit, since pointers sign extend. */ 13061da177e4SLinus Torvalds if (current->personality & ADDR_LIMIT_32BIT) 13071da177e4SLinus Torvalds limit = 0x80000000; 13081da177e4SLinus Torvalds else 13091da177e4SLinus Torvalds limit = TASK_SIZE; 13101da177e4SLinus Torvalds 13111da177e4SLinus Torvalds if (len > limit) 13121da177e4SLinus Torvalds return -ENOMEM; 13131da177e4SLinus Torvalds 13144b87b3b2SBenjamin Herrenschmidt if (flags & MAP_FIXED) 13154b87b3b2SBenjamin Herrenschmidt return addr; 13164b87b3b2SBenjamin Herrenschmidt 13171da177e4SLinus Torvalds /* First, see if the given suggestion fits. 13181da177e4SLinus Torvalds 13191da177e4SLinus Torvalds The OSF/1 loader (/sbin/loader) relies on us returning an 13201da177e4SLinus Torvalds address larger than the requested if one exists, which is 13211da177e4SLinus Torvalds a terribly broken way to program. 13221da177e4SLinus Torvalds 13231da177e4SLinus Torvalds That said, I can see the use in being able to suggest not 13241da177e4SLinus Torvalds merely specific addresses, but regions of memory -- perhaps 13251da177e4SLinus Torvalds this feature should be incorporated into all ports? */ 13261da177e4SLinus Torvalds 13271da177e4SLinus Torvalds if (addr) { 13281da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit); 13291da177e4SLinus Torvalds if (addr != (unsigned long) -ENOMEM) 13301da177e4SLinus Torvalds return addr; 13311da177e4SLinus Torvalds } 13321da177e4SLinus Torvalds 13331da177e4SLinus Torvalds /* Next, try allocating at TASK_UNMAPPED_BASE. */ 13341da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE), 13351da177e4SLinus Torvalds len, limit); 13361da177e4SLinus Torvalds if (addr != (unsigned long) -ENOMEM) 13371da177e4SLinus Torvalds return addr; 13381da177e4SLinus Torvalds 13391da177e4SLinus Torvalds /* Finally, try allocating in low memory. */ 13401da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit); 13411da177e4SLinus Torvalds 13421da177e4SLinus Torvalds return addr; 13431da177e4SLinus Torvalds } 13441da177e4SLinus Torvalds 13451da177e4SLinus Torvalds #ifdef CONFIG_OSF4_COMPAT 13461da177e4SLinus Torvalds /* Clear top 32 bits of iov_len in the user's buffer for 13471da177e4SLinus Torvalds compatibility with old versions of OSF/1 where iov_len 13481da177e4SLinus Torvalds was defined as int. */ 13491da177e4SLinus Torvalds static int 13501da177e4SLinus Torvalds osf_fix_iov_len(const struct iovec __user *iov, unsigned long count) 13511da177e4SLinus Torvalds { 13521da177e4SLinus Torvalds unsigned long i; 13531da177e4SLinus Torvalds 13541da177e4SLinus Torvalds for (i = 0 ; i < count ; i++) { 13551da177e4SLinus Torvalds int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1; 13561da177e4SLinus Torvalds 13571da177e4SLinus Torvalds if (put_user(0, iov_len_high)) 13581da177e4SLinus Torvalds return -EFAULT; 13591da177e4SLinus Torvalds } 13601da177e4SLinus Torvalds return 0; 13611da177e4SLinus Torvalds } 1362d8bf616bSFiroz Khan #endif 13631da177e4SLinus Torvalds 1364e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_readv, unsigned long, fd, 1365e5d9a90cSIvan Kokshaysky const struct iovec __user *, vector, unsigned long, count) 13661da177e4SLinus Torvalds { 1367d8bf616bSFiroz Khan #ifdef CONFIG_OSF4_COMPAT 13681da177e4SLinus Torvalds if (unlikely(personality(current->personality) == PER_OSF4)) 13691da177e4SLinus Torvalds if (osf_fix_iov_len(vector, count)) 13701da177e4SLinus Torvalds return -EFAULT; 1371d8bf616bSFiroz Khan #endif 1372d8bf616bSFiroz Khan 13731da177e4SLinus Torvalds return sys_readv(fd, vector, count); 13741da177e4SLinus Torvalds } 13751da177e4SLinus Torvalds 1376e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_writev, unsigned long, fd, 1377e5d9a90cSIvan Kokshaysky const struct iovec __user *, vector, unsigned long, count) 13781da177e4SLinus Torvalds { 1379d8bf616bSFiroz Khan #ifdef CONFIG_OSF4_COMPAT 13801da177e4SLinus Torvalds if (unlikely(personality(current->personality) == PER_OSF4)) 13811da177e4SLinus Torvalds if (osf_fix_iov_len(vector, count)) 13821da177e4SLinus Torvalds return -EFAULT; 1383d8bf616bSFiroz Khan #endif 13841da177e4SLinus Torvalds return sys_writev(fd, vector, count); 13851da177e4SLinus Torvalds } 13861da177e4SLinus Torvalds 1387be53db6eSAl Viro SYSCALL_DEFINE2(osf_getpriority, int, which, int, who) 1388be53db6eSAl Viro { 1389be53db6eSAl Viro int prio = sys_getpriority(which, who); 1390be53db6eSAl Viro if (prio >= 0) { 1391be53db6eSAl Viro /* Return value is the unbiased priority, i.e. 20 - prio. 1392be53db6eSAl Viro This does result in negative return values, so signal 1393be53db6eSAl Viro no error */ 1394be53db6eSAl Viro force_successful_syscall_return(); 1395be53db6eSAl Viro prio = 20 - prio; 1396be53db6eSAl Viro } 1397be53db6eSAl Viro return prio; 1398be53db6eSAl Viro } 1399be53db6eSAl Viro 1400be53db6eSAl Viro SYSCALL_DEFINE0(getxuid) 1401be53db6eSAl Viro { 1402be53db6eSAl Viro current_pt_regs()->r20 = sys_geteuid(); 1403be53db6eSAl Viro return sys_getuid(); 1404be53db6eSAl Viro } 1405be53db6eSAl Viro 1406be53db6eSAl Viro SYSCALL_DEFINE0(getxgid) 1407be53db6eSAl Viro { 1408be53db6eSAl Viro current_pt_regs()->r20 = sys_getegid(); 1409be53db6eSAl Viro return sys_getgid(); 1410be53db6eSAl Viro } 1411be53db6eSAl Viro 1412be53db6eSAl Viro SYSCALL_DEFINE0(getxpid) 1413be53db6eSAl Viro { 1414be53db6eSAl Viro current_pt_regs()->r20 = sys_getppid(); 1415be53db6eSAl Viro return sys_getpid(); 1416be53db6eSAl Viro } 1417be53db6eSAl Viro 1418be53db6eSAl Viro SYSCALL_DEFINE0(alpha_pipe) 1419be53db6eSAl Viro { 1420be53db6eSAl Viro int fd[2]; 1421be53db6eSAl Viro int res = do_pipe_flags(fd, 0); 1422be53db6eSAl Viro if (!res) { 1423be53db6eSAl Viro /* The return values are in $0 and $20. */ 1424be53db6eSAl Viro current_pt_regs()->r20 = fd[1]; 1425be53db6eSAl Viro res = fd[0]; 1426be53db6eSAl Viro } 1427be53db6eSAl Viro return res; 1428be53db6eSAl Viro } 1429be53db6eSAl Viro 1430be53db6eSAl Viro SYSCALL_DEFINE1(sethae, unsigned long, val) 1431be53db6eSAl Viro { 1432be53db6eSAl Viro current_pt_regs()->hae = val; 1433be53db6eSAl Viro return 0; 1434be53db6eSAl Viro } 1435