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> 39*70f8d9c5SAl Viro #include <linux/mount.h> 401da177e4SLinus Torvalds #include <linux/uio.h> 411da177e4SLinus Torvalds #include <linux/vfs.h> 424fb3a538SDipankar Sarma #include <linux/rcupdate.h> 435a0e3ad6STejun Heo #include <linux/slab.h> 441da177e4SLinus Torvalds 451da177e4SLinus Torvalds #include <asm/fpu.h> 461da177e4SLinus Torvalds #include <asm/io.h> 477c0f6ba6SLinus Torvalds #include <linux/uaccess.h> 481da177e4SLinus Torvalds #include <asm/sysinfo.h> 492df7a7d1SSergei Trofimovich #include <asm/thread_info.h> 501da177e4SLinus Torvalds #include <asm/hwrpb.h> 511da177e4SLinus Torvalds #include <asm/processor.h> 521da177e4SLinus Torvalds 531da177e4SLinus Torvalds /* 541da177e4SLinus Torvalds * Brk needs to return an error. Still support Linux's brk(0) query idiom, 551da177e4SLinus Torvalds * which OSF programs just shouldn't be doing. We're still not quite 561da177e4SLinus Torvalds * identical to OSF as we don't return 0 on success, but doing otherwise 571da177e4SLinus Torvalds * would require changes to libc. Hopefully this is good enough. 581da177e4SLinus Torvalds */ 59e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(osf_brk, unsigned long, brk) 601da177e4SLinus Torvalds { 611da177e4SLinus Torvalds unsigned long retval = sys_brk(brk); 621da177e4SLinus Torvalds if (brk && brk != retval) 631da177e4SLinus Torvalds retval = -ENOMEM; 641da177e4SLinus Torvalds return retval; 651da177e4SLinus Torvalds } 661da177e4SLinus Torvalds 671da177e4SLinus Torvalds /* 681da177e4SLinus Torvalds * This is pure guess-work.. 691da177e4SLinus Torvalds */ 70e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start, 71e5d9a90cSIvan Kokshaysky unsigned long, text_len, unsigned long, bss_start, 72e5d9a90cSIvan Kokshaysky unsigned long, bss_len) 731da177e4SLinus Torvalds { 741da177e4SLinus Torvalds struct mm_struct *mm; 751da177e4SLinus Torvalds 761da177e4SLinus Torvalds mm = current->mm; 771da177e4SLinus Torvalds mm->end_code = bss_start + bss_len; 782444e56bSIvan Kokshaysky mm->start_brk = bss_start + bss_len; 791da177e4SLinus Torvalds mm->brk = bss_start + bss_len; 801da177e4SLinus Torvalds #if 0 811da177e4SLinus Torvalds printk("set_program_attributes(%lx %lx %lx %lx)\n", 821da177e4SLinus Torvalds text_start, text_len, bss_start, bss_len); 831da177e4SLinus Torvalds #endif 841da177e4SLinus Torvalds return 0; 851da177e4SLinus Torvalds } 861da177e4SLinus Torvalds 871da177e4SLinus Torvalds /* 881da177e4SLinus Torvalds * OSF/1 directory handling functions... 891da177e4SLinus Torvalds * 901da177e4SLinus Torvalds * The "getdents()" interface is much more sane: the "basep" stuff is 911da177e4SLinus Torvalds * braindamage (it can't really handle filesystems where the directory 921da177e4SLinus Torvalds * offset differences aren't the same as "d_reclen"). 931da177e4SLinus Torvalds */ 941da177e4SLinus Torvalds #define NAME_OFFSET offsetof (struct osf_dirent, d_name) 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds struct osf_dirent { 971da177e4SLinus Torvalds unsigned int d_ino; 981da177e4SLinus Torvalds unsigned short d_reclen; 991da177e4SLinus Torvalds unsigned short d_namlen; 1001da177e4SLinus Torvalds char d_name[1]; 1011da177e4SLinus Torvalds }; 1021da177e4SLinus Torvalds 1031da177e4SLinus Torvalds struct osf_dirent_callback { 1045c0ba4e0SAl Viro struct dir_context ctx; 1051da177e4SLinus Torvalds struct osf_dirent __user *dirent; 1061da177e4SLinus Torvalds long __user *basep; 1071da177e4SLinus Torvalds unsigned int count; 1081da177e4SLinus Torvalds int error; 1091da177e4SLinus Torvalds }; 1101da177e4SLinus Torvalds 1111da177e4SLinus Torvalds static int 112ac7576f4SMiklos Szeredi osf_filldir(struct dir_context *ctx, const char *name, int namlen, 113ac7576f4SMiklos Szeredi loff_t offset, u64 ino, unsigned int d_type) 1141da177e4SLinus Torvalds { 1151da177e4SLinus Torvalds struct osf_dirent __user *dirent; 116ac7576f4SMiklos Szeredi struct osf_dirent_callback *buf = 117ac7576f4SMiklos Szeredi container_of(ctx, struct osf_dirent_callback, ctx); 118180e53a7SMilind Arun Choudhary unsigned int reclen = ALIGN(NAME_OFFSET + namlen + 1, sizeof(u32)); 119afefdbb2SDavid Howells unsigned int d_ino; 1201da177e4SLinus Torvalds 1211da177e4SLinus Torvalds buf->error = -EINVAL; /* only used if we fail */ 1221da177e4SLinus Torvalds if (reclen > buf->count) 1231da177e4SLinus Torvalds return -EINVAL; 124afefdbb2SDavid Howells d_ino = ino; 125645e68edSAl Viro if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) { 126645e68edSAl Viro buf->error = -EOVERFLOW; 127afefdbb2SDavid Howells return -EOVERFLOW; 128645e68edSAl Viro } 1291da177e4SLinus Torvalds if (buf->basep) { 1301da177e4SLinus Torvalds if (put_user(offset, buf->basep)) 131645e68edSAl Viro goto Efault; 1321da177e4SLinus Torvalds buf->basep = NULL; 1331da177e4SLinus Torvalds } 1341da177e4SLinus Torvalds dirent = buf->dirent; 135645e68edSAl Viro if (put_user(d_ino, &dirent->d_ino) || 136645e68edSAl Viro put_user(namlen, &dirent->d_namlen) || 137645e68edSAl Viro put_user(reclen, &dirent->d_reclen) || 138645e68edSAl Viro copy_to_user(dirent->d_name, name, namlen) || 1391da177e4SLinus Torvalds put_user(0, dirent->d_name + namlen)) 140645e68edSAl Viro goto Efault; 1411da177e4SLinus Torvalds dirent = (void __user *)dirent + reclen; 1421da177e4SLinus Torvalds buf->dirent = dirent; 1431da177e4SLinus Torvalds buf->count -= reclen; 1441da177e4SLinus Torvalds return 0; 145645e68edSAl Viro Efault: 146645e68edSAl Viro buf->error = -EFAULT; 147645e68edSAl Viro return -EFAULT; 1481da177e4SLinus Torvalds } 1491da177e4SLinus Torvalds 150e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd, 151e5d9a90cSIvan Kokshaysky struct osf_dirent __user *, dirent, unsigned int, count, 152e5d9a90cSIvan Kokshaysky long __user *, basep) 1531da177e4SLinus Torvalds { 1541da177e4SLinus Torvalds int error; 15563b6df14SAl Viro struct fd arg = fdget_pos(fd); 156ac6614b7SAl Viro struct osf_dirent_callback buf = { 157ac6614b7SAl Viro .ctx.actor = osf_filldir, 158ac6614b7SAl Viro .dirent = dirent, 159ac6614b7SAl Viro .basep = basep, 160ac6614b7SAl Viro .count = count 161ac6614b7SAl Viro }; 1621da177e4SLinus Torvalds 1632903ff01SAl Viro if (!arg.file) 1642903ff01SAl Viro return -EBADF; 1651da177e4SLinus Torvalds 1665c0ba4e0SAl Viro error = iterate_dir(arg.file, &buf.ctx); 16753c9c5c0SAl Viro if (error >= 0) 1681da177e4SLinus Torvalds error = buf.error; 1691da177e4SLinus Torvalds if (count != buf.count) 1701da177e4SLinus Torvalds error = count - buf.count; 1711da177e4SLinus Torvalds 17263b6df14SAl Viro fdput_pos(arg); 1731da177e4SLinus Torvalds return error; 1741da177e4SLinus Torvalds } 1751da177e4SLinus Torvalds 1761da177e4SLinus Torvalds #undef NAME_OFFSET 1771da177e4SLinus Torvalds 178e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len, 179e5d9a90cSIvan Kokshaysky unsigned long, prot, unsigned long, flags, unsigned long, fd, 180e5d9a90cSIvan Kokshaysky unsigned long, off) 1811da177e4SLinus Torvalds { 182f8b72560SAl Viro unsigned long ret = -EINVAL; 1831da177e4SLinus Torvalds 1841da177e4SLinus Torvalds #if 0 1851da177e4SLinus Torvalds if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED)) 1861da177e4SLinus Torvalds printk("%s: unimplemented OSF mmap flags %04lx\n", 1871da177e4SLinus Torvalds current->comm, flags); 1881da177e4SLinus Torvalds #endif 189f8b72560SAl Viro if ((off + PAGE_ALIGN(len)) < off) 1901da177e4SLinus Torvalds goto out; 191f8b72560SAl Viro if (off & ~PAGE_MASK) 192f8b72560SAl Viro goto out; 193a90f590aSDominik Brodowski ret = ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); 1941da177e4SLinus Torvalds out: 1951da177e4SLinus Torvalds return ret; 1961da177e4SLinus Torvalds } 1971da177e4SLinus Torvalds 1987a8bb98cSMans Rullgard struct osf_stat { 1997a8bb98cSMans Rullgard int st_dev; 2007a8bb98cSMans Rullgard int st_pad1; 2017a8bb98cSMans Rullgard unsigned st_mode; 2027a8bb98cSMans Rullgard unsigned short st_nlink; 2037a8bb98cSMans Rullgard short st_nlink_reserved; 2047a8bb98cSMans Rullgard unsigned st_uid; 2057a8bb98cSMans Rullgard unsigned st_gid; 2067a8bb98cSMans Rullgard int st_rdev; 2077a8bb98cSMans Rullgard int st_ldev; 2087a8bb98cSMans Rullgard long st_size; 2097a8bb98cSMans Rullgard int st_pad2; 2107a8bb98cSMans Rullgard int st_uatime; 2117a8bb98cSMans Rullgard int st_pad3; 2127a8bb98cSMans Rullgard int st_umtime; 2137a8bb98cSMans Rullgard int st_pad4; 2147a8bb98cSMans Rullgard int st_uctime; 2157a8bb98cSMans Rullgard int st_pad5; 2167a8bb98cSMans Rullgard int st_pad6; 2177a8bb98cSMans Rullgard unsigned st_flags; 2187a8bb98cSMans Rullgard unsigned st_gen; 2197a8bb98cSMans Rullgard long st_spare[4]; 2207a8bb98cSMans Rullgard unsigned st_ino; 2217a8bb98cSMans Rullgard int st_ino_reserved; 2227a8bb98cSMans Rullgard int st_atime; 2237a8bb98cSMans Rullgard int st_atime_reserved; 2247a8bb98cSMans Rullgard int st_mtime; 2257a8bb98cSMans Rullgard int st_mtime_reserved; 2267a8bb98cSMans Rullgard int st_ctime; 2277a8bb98cSMans Rullgard int st_ctime_reserved; 2287a8bb98cSMans Rullgard long st_blksize; 2297a8bb98cSMans Rullgard long st_blocks; 2307a8bb98cSMans Rullgard }; 2311da177e4SLinus Torvalds 2321da177e4SLinus Torvalds /* 2331da177e4SLinus Torvalds * The OSF/1 statfs structure is much larger, but this should 2341da177e4SLinus Torvalds * match the beginning, at least. 2351da177e4SLinus Torvalds */ 2361da177e4SLinus Torvalds struct osf_statfs { 2371da177e4SLinus Torvalds short f_type; 2381da177e4SLinus Torvalds short f_flags; 2391da177e4SLinus Torvalds int f_fsize; 2401da177e4SLinus Torvalds int f_bsize; 2411da177e4SLinus Torvalds int f_blocks; 2421da177e4SLinus Torvalds int f_bfree; 2431da177e4SLinus Torvalds int f_bavail; 2441da177e4SLinus Torvalds int f_files; 2451da177e4SLinus Torvalds int f_ffree; 2461da177e4SLinus Torvalds __kernel_fsid_t f_fsid; 2471da177e4SLinus Torvalds }; 2481da177e4SLinus Torvalds 2497a8bb98cSMans Rullgard struct osf_statfs64 { 2507a8bb98cSMans Rullgard short f_type; 2517a8bb98cSMans Rullgard short f_flags; 2527a8bb98cSMans Rullgard int f_pad1; 2537a8bb98cSMans Rullgard int f_pad2; 2547a8bb98cSMans Rullgard int f_pad3; 2557a8bb98cSMans Rullgard int f_pad4; 2567a8bb98cSMans Rullgard int f_pad5; 2577a8bb98cSMans Rullgard int f_pad6; 2587a8bb98cSMans Rullgard int f_pad7; 2597a8bb98cSMans Rullgard __kernel_fsid_t f_fsid; 2607a8bb98cSMans Rullgard u_short f_namemax; 2617a8bb98cSMans Rullgard short f_reserved1; 2627a8bb98cSMans Rullgard int f_spare[8]; 2637a8bb98cSMans Rullgard char f_pad8[90]; 2647a8bb98cSMans Rullgard char f_pad9[90]; 2657a8bb98cSMans Rullgard long mount_info[10]; 2667a8bb98cSMans Rullgard u_long f_flags2; 2677a8bb98cSMans Rullgard long f_spare2[14]; 2687a8bb98cSMans Rullgard long f_fsize; 2697a8bb98cSMans Rullgard long f_bsize; 2707a8bb98cSMans Rullgard long f_blocks; 2717a8bb98cSMans Rullgard long f_bfree; 2727a8bb98cSMans Rullgard long f_bavail; 2737a8bb98cSMans Rullgard long f_files; 2747a8bb98cSMans Rullgard long f_ffree; 2757a8bb98cSMans Rullgard }; 2767a8bb98cSMans Rullgard 2777a8bb98cSMans Rullgard static int 2787a8bb98cSMans Rullgard linux_to_osf_stat(struct kstat *lstat, struct osf_stat __user *osf_stat) 2797a8bb98cSMans Rullgard { 2807a8bb98cSMans Rullgard struct osf_stat tmp = { 0 }; 2817a8bb98cSMans Rullgard 2827a8bb98cSMans Rullgard tmp.st_dev = lstat->dev; 2837a8bb98cSMans Rullgard tmp.st_mode = lstat->mode; 2847a8bb98cSMans Rullgard tmp.st_nlink = lstat->nlink; 285f31389d5SEric W. Biederman tmp.st_uid = from_kuid_munged(current_user_ns(), lstat->uid); 286f31389d5SEric W. Biederman tmp.st_gid = from_kgid_munged(current_user_ns(), lstat->gid); 2877a8bb98cSMans Rullgard tmp.st_rdev = lstat->rdev; 2887a8bb98cSMans Rullgard tmp.st_ldev = lstat->rdev; 2897a8bb98cSMans Rullgard tmp.st_size = lstat->size; 2907a8bb98cSMans Rullgard tmp.st_uatime = lstat->atime.tv_nsec / 1000; 2917a8bb98cSMans Rullgard tmp.st_umtime = lstat->mtime.tv_nsec / 1000; 2927a8bb98cSMans Rullgard tmp.st_uctime = lstat->ctime.tv_nsec / 1000; 2937a8bb98cSMans Rullgard tmp.st_ino = lstat->ino; 2947a8bb98cSMans Rullgard tmp.st_atime = lstat->atime.tv_sec; 2957a8bb98cSMans Rullgard tmp.st_mtime = lstat->mtime.tv_sec; 2967a8bb98cSMans Rullgard tmp.st_ctime = lstat->ctime.tv_sec; 2977a8bb98cSMans Rullgard tmp.st_blksize = lstat->blksize; 2987a8bb98cSMans Rullgard tmp.st_blocks = lstat->blocks; 2997a8bb98cSMans Rullgard 3007a8bb98cSMans Rullgard return copy_to_user(osf_stat, &tmp, sizeof(tmp)) ? -EFAULT : 0; 3017a8bb98cSMans Rullgard } 3027a8bb98cSMans Rullgard 3031da177e4SLinus Torvalds static int 3041da177e4SLinus Torvalds linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat, 3051da177e4SLinus Torvalds unsigned long bufsiz) 3061da177e4SLinus Torvalds { 3071da177e4SLinus Torvalds struct osf_statfs tmp_stat; 3081da177e4SLinus Torvalds 3091da177e4SLinus Torvalds tmp_stat.f_type = linux_stat->f_type; 3101da177e4SLinus Torvalds tmp_stat.f_flags = 0; /* mount flags */ 3111da177e4SLinus Torvalds tmp_stat.f_fsize = linux_stat->f_frsize; 3121da177e4SLinus Torvalds tmp_stat.f_bsize = linux_stat->f_bsize; 3131da177e4SLinus Torvalds tmp_stat.f_blocks = linux_stat->f_blocks; 3141da177e4SLinus Torvalds tmp_stat.f_bfree = linux_stat->f_bfree; 3151da177e4SLinus Torvalds tmp_stat.f_bavail = linux_stat->f_bavail; 3161da177e4SLinus Torvalds tmp_stat.f_files = linux_stat->f_files; 3171da177e4SLinus Torvalds tmp_stat.f_ffree = linux_stat->f_ffree; 3181da177e4SLinus Torvalds tmp_stat.f_fsid = linux_stat->f_fsid; 3191da177e4SLinus Torvalds if (bufsiz > sizeof(tmp_stat)) 3201da177e4SLinus Torvalds bufsiz = sizeof(tmp_stat); 3211da177e4SLinus Torvalds return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0; 3221da177e4SLinus Torvalds } 3231da177e4SLinus Torvalds 3247a8bb98cSMans Rullgard static int 3257a8bb98cSMans Rullgard linux_to_osf_statfs64(struct kstatfs *linux_stat, struct osf_statfs64 __user *osf_stat, 3267a8bb98cSMans Rullgard unsigned long bufsiz) 3277a8bb98cSMans Rullgard { 3287a8bb98cSMans Rullgard struct osf_statfs64 tmp_stat = { 0 }; 3297a8bb98cSMans Rullgard 3307a8bb98cSMans Rullgard tmp_stat.f_type = linux_stat->f_type; 3317a8bb98cSMans Rullgard tmp_stat.f_fsize = linux_stat->f_frsize; 3327a8bb98cSMans Rullgard tmp_stat.f_bsize = linux_stat->f_bsize; 3337a8bb98cSMans Rullgard tmp_stat.f_blocks = linux_stat->f_blocks; 3347a8bb98cSMans Rullgard tmp_stat.f_bfree = linux_stat->f_bfree; 3357a8bb98cSMans Rullgard tmp_stat.f_bavail = linux_stat->f_bavail; 3367a8bb98cSMans Rullgard tmp_stat.f_files = linux_stat->f_files; 3377a8bb98cSMans Rullgard tmp_stat.f_ffree = linux_stat->f_ffree; 3387a8bb98cSMans Rullgard tmp_stat.f_fsid = linux_stat->f_fsid; 3397a8bb98cSMans Rullgard if (bufsiz > sizeof(tmp_stat)) 3407a8bb98cSMans Rullgard bufsiz = sizeof(tmp_stat); 3417a8bb98cSMans Rullgard return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0; 3427a8bb98cSMans Rullgard } 3437a8bb98cSMans Rullgard 344c8b91accSAl Viro SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname, 345c8b91accSAl Viro struct osf_statfs __user *, buffer, unsigned long, bufsiz) 3461da177e4SLinus Torvalds { 3471da177e4SLinus Torvalds struct kstatfs linux_stat; 348c8b91accSAl Viro int error = user_statfs(pathname, &linux_stat); 3491da177e4SLinus Torvalds if (!error) 3501da177e4SLinus Torvalds error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz); 3511da177e4SLinus Torvalds return error; 3521da177e4SLinus Torvalds } 3531da177e4SLinus Torvalds 3547a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_stat, char __user *, name, struct osf_stat __user *, buf) 3557a8bb98cSMans Rullgard { 3567a8bb98cSMans Rullgard struct kstat stat; 3577a8bb98cSMans Rullgard int error; 3587a8bb98cSMans Rullgard 3597a8bb98cSMans Rullgard error = vfs_stat(name, &stat); 3607a8bb98cSMans Rullgard if (error) 3617a8bb98cSMans Rullgard return error; 3627a8bb98cSMans Rullgard 3637a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3647a8bb98cSMans Rullgard } 3657a8bb98cSMans Rullgard 3667a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_lstat, char __user *, name, struct osf_stat __user *, buf) 3677a8bb98cSMans Rullgard { 3687a8bb98cSMans Rullgard struct kstat stat; 3697a8bb98cSMans Rullgard int error; 3707a8bb98cSMans Rullgard 3717a8bb98cSMans Rullgard error = vfs_lstat(name, &stat); 3727a8bb98cSMans Rullgard if (error) 3737a8bb98cSMans Rullgard return error; 3747a8bb98cSMans Rullgard 3757a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3767a8bb98cSMans Rullgard } 3777a8bb98cSMans Rullgard 3787a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_fstat, int, fd, struct osf_stat __user *, buf) 3797a8bb98cSMans Rullgard { 3807a8bb98cSMans Rullgard struct kstat stat; 3817a8bb98cSMans Rullgard int error; 3827a8bb98cSMans Rullgard 3837a8bb98cSMans Rullgard error = vfs_fstat(fd, &stat); 3847a8bb98cSMans Rullgard if (error) 3857a8bb98cSMans Rullgard return error; 3867a8bb98cSMans Rullgard 3877a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3887a8bb98cSMans Rullgard } 3897a8bb98cSMans Rullgard 390e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd, 391e5d9a90cSIvan Kokshaysky struct osf_statfs __user *, buffer, unsigned long, bufsiz) 3921da177e4SLinus Torvalds { 393c8b91accSAl Viro struct kstatfs linux_stat; 394c8b91accSAl Viro int error = fd_statfs(fd, &linux_stat); 395c8b91accSAl Viro if (!error) 396c8b91accSAl Viro error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz); 397c8b91accSAl Viro return error; 3981da177e4SLinus Torvalds } 3991da177e4SLinus Torvalds 4007a8bb98cSMans Rullgard SYSCALL_DEFINE3(osf_statfs64, char __user *, pathname, 4017a8bb98cSMans Rullgard struct osf_statfs64 __user *, buffer, unsigned long, bufsiz) 4027a8bb98cSMans Rullgard { 4037a8bb98cSMans Rullgard struct kstatfs linux_stat; 4047a8bb98cSMans Rullgard int error = user_statfs(pathname, &linux_stat); 4057a8bb98cSMans Rullgard if (!error) 4067a8bb98cSMans Rullgard error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz); 4077a8bb98cSMans Rullgard return error; 4087a8bb98cSMans Rullgard } 4097a8bb98cSMans Rullgard 4107a8bb98cSMans Rullgard SYSCALL_DEFINE3(osf_fstatfs64, unsigned long, fd, 4117a8bb98cSMans Rullgard struct osf_statfs64 __user *, buffer, unsigned long, bufsiz) 4127a8bb98cSMans Rullgard { 4137a8bb98cSMans Rullgard struct kstatfs linux_stat; 4147a8bb98cSMans Rullgard int error = fd_statfs(fd, &linux_stat); 4157a8bb98cSMans Rullgard if (!error) 4167a8bb98cSMans Rullgard error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz); 4177a8bb98cSMans Rullgard return error; 4187a8bb98cSMans Rullgard } 4197a8bb98cSMans Rullgard 4201da177e4SLinus Torvalds /* 4211da177e4SLinus Torvalds * Uhh.. OSF/1 mount parameters aren't exactly obvious.. 4221da177e4SLinus Torvalds * 4231da177e4SLinus Torvalds * Although to be frank, neither are the native Linux/i386 ones.. 4241da177e4SLinus Torvalds */ 4251da177e4SLinus Torvalds struct ufs_args { 4261da177e4SLinus Torvalds char __user *devname; 4271da177e4SLinus Torvalds int flags; 4281da177e4SLinus Torvalds uid_t exroot; 4291da177e4SLinus Torvalds }; 4301da177e4SLinus Torvalds 4311da177e4SLinus Torvalds struct cdfs_args { 4321da177e4SLinus Torvalds char __user *devname; 4331da177e4SLinus Torvalds int flags; 4341da177e4SLinus Torvalds uid_t exroot; 4351da177e4SLinus Torvalds 4361da177e4SLinus Torvalds /* This has lots more here, which Linux handles with the option block 4371da177e4SLinus Torvalds but I'm too lazy to do the translation into ASCII. */ 4381da177e4SLinus Torvalds }; 4391da177e4SLinus Torvalds 4401da177e4SLinus Torvalds struct procfs_args { 4411da177e4SLinus Torvalds char __user *devname; 4421da177e4SLinus Torvalds int flags; 4431da177e4SLinus Torvalds uid_t exroot; 4441da177e4SLinus Torvalds }; 4451da177e4SLinus Torvalds 4461da177e4SLinus Torvalds /* 4471da177e4SLinus Torvalds * We can't actually handle ufs yet, so we translate UFS mounts to 4481da177e4SLinus Torvalds * ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS 4491da177e4SLinus Torvalds * layout is so braindead it's a major headache doing it. 4501da177e4SLinus Torvalds * 4511da177e4SLinus Torvalds * Just how long ago was it written? OTOH our UFS driver may be still 4521da177e4SLinus Torvalds * unhappy with OSF UFS. [CHECKME] 4531da177e4SLinus Torvalds */ 4541da177e4SLinus Torvalds static int 4555e6123f3SSeunghun Lee osf_ufs_mount(const char __user *dirname, 4565e6123f3SSeunghun Lee struct ufs_args __user *args, int flags) 4571da177e4SLinus Torvalds { 4581da177e4SLinus Torvalds int retval; 4591da177e4SLinus Torvalds struct cdfs_args tmp; 46091a27b2aSJeff Layton struct filename *devname; 4611da177e4SLinus Torvalds 4621da177e4SLinus Torvalds retval = -EFAULT; 4631da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 4641da177e4SLinus Torvalds goto out; 4651da177e4SLinus Torvalds devname = getname(tmp.devname); 4661da177e4SLinus Torvalds retval = PTR_ERR(devname); 4671da177e4SLinus Torvalds if (IS_ERR(devname)) 4681da177e4SLinus Torvalds goto out; 46991a27b2aSJeff Layton retval = do_mount(devname->name, dirname, "ext2", flags, NULL); 4701da177e4SLinus Torvalds putname(devname); 4711da177e4SLinus Torvalds out: 4721da177e4SLinus Torvalds return retval; 4731da177e4SLinus Torvalds } 4741da177e4SLinus Torvalds 4751da177e4SLinus Torvalds static int 4765e6123f3SSeunghun Lee osf_cdfs_mount(const char __user *dirname, 4775e6123f3SSeunghun Lee struct cdfs_args __user *args, int flags) 4781da177e4SLinus Torvalds { 4791da177e4SLinus Torvalds int retval; 4801da177e4SLinus Torvalds struct cdfs_args tmp; 48191a27b2aSJeff Layton struct filename *devname; 4821da177e4SLinus Torvalds 4831da177e4SLinus Torvalds retval = -EFAULT; 4841da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 4851da177e4SLinus Torvalds goto out; 4861da177e4SLinus Torvalds devname = getname(tmp.devname); 4871da177e4SLinus Torvalds retval = PTR_ERR(devname); 4881da177e4SLinus Torvalds if (IS_ERR(devname)) 4891da177e4SLinus Torvalds goto out; 49091a27b2aSJeff Layton retval = do_mount(devname->name, dirname, "iso9660", flags, NULL); 4911da177e4SLinus Torvalds putname(devname); 4921da177e4SLinus Torvalds out: 4931da177e4SLinus Torvalds return retval; 4941da177e4SLinus Torvalds } 4951da177e4SLinus Torvalds 4961da177e4SLinus Torvalds static int 4975e6123f3SSeunghun Lee osf_procfs_mount(const char __user *dirname, 4985e6123f3SSeunghun Lee struct procfs_args __user *args, int flags) 4991da177e4SLinus Torvalds { 5001da177e4SLinus Torvalds struct procfs_args tmp; 5011da177e4SLinus Torvalds 5021da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 5031da177e4SLinus Torvalds return -EFAULT; 5041da177e4SLinus Torvalds 5051da177e4SLinus Torvalds return do_mount("", dirname, "proc", flags, NULL); 5061da177e4SLinus Torvalds } 5071da177e4SLinus Torvalds 508c7887325SDavid Howells SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path, 509e5d9a90cSIvan Kokshaysky int, flag, void __user *, data) 5101da177e4SLinus Torvalds { 51177079dbeSRoel Kluin int retval; 5121da177e4SLinus Torvalds 5131da177e4SLinus Torvalds switch (typenr) { 5141da177e4SLinus Torvalds case 1: 5155e6123f3SSeunghun Lee retval = osf_ufs_mount(path, data, flag); 5161da177e4SLinus Torvalds break; 5171da177e4SLinus Torvalds case 6: 5185e6123f3SSeunghun Lee retval = osf_cdfs_mount(path, data, flag); 5191da177e4SLinus Torvalds break; 5201da177e4SLinus Torvalds case 9: 5215e6123f3SSeunghun Lee retval = osf_procfs_mount(path, data, flag); 5221da177e4SLinus Torvalds break; 5231da177e4SLinus Torvalds default: 52477079dbeSRoel Kluin retval = -EINVAL; 5251da177e4SLinus Torvalds printk("osf_mount(%ld, %x)\n", typenr, flag); 5261da177e4SLinus Torvalds } 5275e6123f3SSeunghun Lee 5281da177e4SLinus Torvalds return retval; 5291da177e4SLinus Torvalds } 5301da177e4SLinus Torvalds 531e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(osf_utsname, char __user *, name) 5321da177e4SLinus Torvalds { 53342a0cc34SJann Horn char tmp[5 * 32]; 5341da177e4SLinus Torvalds 5351da177e4SLinus Torvalds down_read(&uts_sem); 53642a0cc34SJann Horn memcpy(tmp + 0 * 32, utsname()->sysname, 32); 53742a0cc34SJann Horn memcpy(tmp + 1 * 32, utsname()->nodename, 32); 53842a0cc34SJann Horn memcpy(tmp + 2 * 32, utsname()->release, 32); 53942a0cc34SJann Horn memcpy(tmp + 3 * 32, utsname()->version, 32); 54042a0cc34SJann Horn memcpy(tmp + 4 * 32, utsname()->machine, 32); 5411da177e4SLinus Torvalds up_read(&uts_sem); 54242a0cc34SJann Horn 54342a0cc34SJann Horn if (copy_to_user(name, tmp, sizeof(tmp))) 54442a0cc34SJann Horn return -EFAULT; 54542a0cc34SJann Horn return 0; 5461da177e4SLinus Torvalds } 5471da177e4SLinus Torvalds 548e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE0(getpagesize) 5491da177e4SLinus Torvalds { 5501da177e4SLinus Torvalds return PAGE_SIZE; 5511da177e4SLinus Torvalds } 5521da177e4SLinus Torvalds 553e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE0(getdtablesize) 5541da177e4SLinus Torvalds { 5559cfe015aSEric Dumazet return sysctl_nr_open; 5561da177e4SLinus Torvalds } 5571da177e4SLinus Torvalds 5581da177e4SLinus Torvalds /* 5591da177e4SLinus Torvalds * For compatibility with OSF/1 only. Use utsname(2) instead. 5601da177e4SLinus Torvalds */ 561e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen) 5621da177e4SLinus Torvalds { 5631c3243f6SMatt Turner int len; 5649ba3eb51SAl Viro char *kname; 56542a0cc34SJann Horn char tmp[32]; 5661da177e4SLinus Torvalds 56742a0cc34SJann Horn if (namelen < 0 || namelen > 32) 5689ba3eb51SAl Viro namelen = 32; 5691da177e4SLinus Torvalds 5701da177e4SLinus Torvalds down_read(&uts_sem); 5719ba3eb51SAl Viro kname = utsname()->domainname; 5729ba3eb51SAl Viro len = strnlen(kname, namelen); 57342a0cc34SJann Horn len = min(len + 1, namelen); 57442a0cc34SJann Horn memcpy(tmp, kname, len); 5751da177e4SLinus Torvalds up_read(&uts_sem); 5761da177e4SLinus Torvalds 57742a0cc34SJann Horn if (copy_to_user(name, tmp, len)) 57842a0cc34SJann Horn return -EFAULT; 57942a0cc34SJann Horn return 0; 5801da177e4SLinus Torvalds } 5811da177e4SLinus Torvalds 5821da177e4SLinus Torvalds /* 5831da177e4SLinus Torvalds * The following stuff should move into a header file should it ever 5841da177e4SLinus Torvalds * be labeled "officially supported." Right now, there is just enough 5851da177e4SLinus Torvalds * support to avoid applications (such as tar) printing error 5861da177e4SLinus Torvalds * messages. The attributes are not really implemented. 5871da177e4SLinus Torvalds */ 5881da177e4SLinus Torvalds 5891da177e4SLinus Torvalds /* 5901da177e4SLinus Torvalds * Values for Property list entry flag 5911da177e4SLinus Torvalds */ 5921da177e4SLinus Torvalds #define PLE_PROPAGATE_ON_COPY 0x1 /* cp(1) will copy entry 5931da177e4SLinus Torvalds by default */ 5941da177e4SLinus Torvalds #define PLE_FLAG_MASK 0x1 /* Valid flag values */ 5951da177e4SLinus Torvalds #define PLE_FLAG_ALL -1 /* All flag value */ 5961da177e4SLinus Torvalds 5971da177e4SLinus Torvalds struct proplistname_args { 5981da177e4SLinus Torvalds unsigned int pl_mask; 5991da177e4SLinus Torvalds unsigned int pl_numnames; 6001da177e4SLinus Torvalds char **pl_names; 6011da177e4SLinus Torvalds }; 6021da177e4SLinus Torvalds 6031da177e4SLinus Torvalds union pl_args { 6041da177e4SLinus Torvalds struct setargs { 6051da177e4SLinus Torvalds char __user *path; 6061da177e4SLinus Torvalds long follow; 6071da177e4SLinus Torvalds long nbytes; 6081da177e4SLinus Torvalds char __user *buf; 6091da177e4SLinus Torvalds } set; 6101da177e4SLinus Torvalds struct fsetargs { 6111da177e4SLinus Torvalds long fd; 6121da177e4SLinus Torvalds long nbytes; 6131da177e4SLinus Torvalds char __user *buf; 6141da177e4SLinus Torvalds } fset; 6151da177e4SLinus Torvalds struct getargs { 6161da177e4SLinus Torvalds char __user *path; 6171da177e4SLinus Torvalds long follow; 6181da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6191da177e4SLinus Torvalds long nbytes; 6201da177e4SLinus Torvalds char __user *buf; 6211da177e4SLinus Torvalds int __user *min_buf_size; 6221da177e4SLinus Torvalds } get; 6231da177e4SLinus Torvalds struct fgetargs { 6241da177e4SLinus Torvalds long fd; 6251da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6261da177e4SLinus Torvalds long nbytes; 6271da177e4SLinus Torvalds char __user *buf; 6281da177e4SLinus Torvalds int __user *min_buf_size; 6291da177e4SLinus Torvalds } fget; 6301da177e4SLinus Torvalds struct delargs { 6311da177e4SLinus Torvalds char __user *path; 6321da177e4SLinus Torvalds long follow; 6331da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6341da177e4SLinus Torvalds } del; 6351da177e4SLinus Torvalds struct fdelargs { 6361da177e4SLinus Torvalds long fd; 6371da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6381da177e4SLinus Torvalds } fdel; 6391da177e4SLinus Torvalds }; 6401da177e4SLinus Torvalds 6411da177e4SLinus Torvalds enum pl_code { 6421da177e4SLinus Torvalds PL_SET = 1, PL_FSET = 2, 6431da177e4SLinus Torvalds PL_GET = 3, PL_FGET = 4, 6441da177e4SLinus Torvalds PL_DEL = 5, PL_FDEL = 6 6451da177e4SLinus Torvalds }; 6461da177e4SLinus Torvalds 647e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code, 648e5d9a90cSIvan Kokshaysky union pl_args __user *, args) 6491da177e4SLinus Torvalds { 6501da177e4SLinus Torvalds long error; 6511da177e4SLinus Torvalds int __user *min_buf_size_ptr; 6521da177e4SLinus Torvalds 6531da177e4SLinus Torvalds switch (code) { 6541da177e4SLinus Torvalds case PL_SET: 6551da177e4SLinus Torvalds if (get_user(error, &args->set.nbytes)) 6561da177e4SLinus Torvalds error = -EFAULT; 6571da177e4SLinus Torvalds break; 6581da177e4SLinus Torvalds case PL_FSET: 6591da177e4SLinus Torvalds if (get_user(error, &args->fset.nbytes)) 6601da177e4SLinus Torvalds error = -EFAULT; 6611da177e4SLinus Torvalds break; 6621da177e4SLinus Torvalds case PL_GET: 6631da177e4SLinus Torvalds error = get_user(min_buf_size_ptr, &args->get.min_buf_size); 6641da177e4SLinus Torvalds if (error) 6651da177e4SLinus Torvalds break; 6661da177e4SLinus Torvalds error = put_user(0, min_buf_size_ptr); 6671da177e4SLinus Torvalds break; 6681da177e4SLinus Torvalds case PL_FGET: 6691da177e4SLinus Torvalds error = get_user(min_buf_size_ptr, &args->fget.min_buf_size); 6701da177e4SLinus Torvalds if (error) 6711da177e4SLinus Torvalds break; 6721da177e4SLinus Torvalds error = put_user(0, min_buf_size_ptr); 6731da177e4SLinus Torvalds break; 6741da177e4SLinus Torvalds case PL_DEL: 6751da177e4SLinus Torvalds case PL_FDEL: 6761da177e4SLinus Torvalds error = 0; 6771da177e4SLinus Torvalds break; 6781da177e4SLinus Torvalds default: 6791da177e4SLinus Torvalds error = -EOPNOTSUPP; 6801da177e4SLinus Torvalds break; 681a466a5cfSJason Yan } 6821da177e4SLinus Torvalds return error; 6831da177e4SLinus Torvalds } 6841da177e4SLinus Torvalds 685e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss, 686e5d9a90cSIvan Kokshaysky struct sigstack __user *, uoss) 6871da177e4SLinus Torvalds { 6881da177e4SLinus Torvalds unsigned long usp = rdusp(); 6891da177e4SLinus Torvalds unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size; 6901da177e4SLinus Torvalds unsigned long oss_os = on_sig_stack(usp); 6911da177e4SLinus Torvalds int error; 6921da177e4SLinus Torvalds 6931da177e4SLinus Torvalds if (uss) { 6941da177e4SLinus Torvalds void __user *ss_sp; 6951da177e4SLinus Torvalds 6961da177e4SLinus Torvalds error = -EFAULT; 6971da177e4SLinus Torvalds if (get_user(ss_sp, &uss->ss_sp)) 6981da177e4SLinus Torvalds goto out; 6991da177e4SLinus Torvalds 7001da177e4SLinus Torvalds /* If the current stack was set with sigaltstack, don't 7011da177e4SLinus Torvalds swap stacks while we are on it. */ 7021da177e4SLinus Torvalds error = -EPERM; 7031da177e4SLinus Torvalds if (current->sas_ss_sp && on_sig_stack(usp)) 7041da177e4SLinus Torvalds goto out; 7051da177e4SLinus Torvalds 7061da177e4SLinus Torvalds /* Since we don't know the extent of the stack, and we don't 7071da177e4SLinus Torvalds track onstack-ness, but rather calculate it, we must 7081da177e4SLinus Torvalds presume a size. Ho hum this interface is lossy. */ 7091da177e4SLinus Torvalds current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ; 7101da177e4SLinus Torvalds current->sas_ss_size = SIGSTKSZ; 7111da177e4SLinus Torvalds } 7121da177e4SLinus Torvalds 7131da177e4SLinus Torvalds if (uoss) { 7141da177e4SLinus Torvalds error = -EFAULT; 7158d2fd30eSAl Viro if (put_user(oss_sp, &uoss->ss_sp) || 7168d2fd30eSAl Viro put_user(oss_os, &uoss->ss_onstack)) 7171da177e4SLinus Torvalds goto out; 7181da177e4SLinus Torvalds } 7191da177e4SLinus Torvalds 7201da177e4SLinus Torvalds error = 0; 7211da177e4SLinus Torvalds out: 7221da177e4SLinus Torvalds return error; 7231da177e4SLinus Torvalds } 7241da177e4SLinus Torvalds 725e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count) 7261da177e4SLinus Torvalds { 72731019075SJoe Perches const char *sysinfo_table[] = { 728e9ff3990SSerge E. Hallyn utsname()->sysname, 729e9ff3990SSerge E. Hallyn utsname()->nodename, 730e9ff3990SSerge E. Hallyn utsname()->release, 731e9ff3990SSerge E. Hallyn utsname()->version, 732e9ff3990SSerge E. Hallyn utsname()->machine, 7331da177e4SLinus Torvalds "alpha", /* instruction set architecture */ 7341da177e4SLinus Torvalds "dummy", /* hardware serial number */ 7351da177e4SLinus Torvalds "dummy", /* hardware manufacturer */ 7361da177e4SLinus Torvalds "dummy", /* secure RPC domain */ 7371da177e4SLinus Torvalds }; 7381da177e4SLinus Torvalds unsigned long offset; 73931019075SJoe Perches const char *res; 74042a0cc34SJann Horn long len; 74142a0cc34SJann Horn char tmp[__NEW_UTS_LEN + 1]; 7421da177e4SLinus Torvalds 7431da177e4SLinus Torvalds offset = command-1; 74425c8716cSTobias Klauser if (offset >= ARRAY_SIZE(sysinfo_table)) { 7451da177e4SLinus Torvalds /* Digital UNIX has a few unpublished interfaces here */ 7461da177e4SLinus Torvalds printk("sysinfo(%d)", command); 74742a0cc34SJann Horn return -EINVAL; 7481da177e4SLinus Torvalds } 7491da177e4SLinus Torvalds 7501da177e4SLinus Torvalds down_read(&uts_sem); 7511da177e4SLinus Torvalds res = sysinfo_table[offset]; 7521da177e4SLinus Torvalds len = strlen(res)+1; 75321c5977aSDan Rosenberg if ((unsigned long)len > (unsigned long)count) 7541da177e4SLinus Torvalds len = count; 75542a0cc34SJann Horn memcpy(tmp, res, len); 7561da177e4SLinus Torvalds up_read(&uts_sem); 75742a0cc34SJann Horn if (copy_to_user(buf, tmp, len)) 75842a0cc34SJann Horn return -EFAULT; 75942a0cc34SJann Horn return 0; 7601da177e4SLinus Torvalds } 7611da177e4SLinus Torvalds 762e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer, 763e5d9a90cSIvan Kokshaysky unsigned long, nbytes, int __user *, start, void __user *, arg) 7641da177e4SLinus Torvalds { 7651da177e4SLinus Torvalds unsigned long w; 7661da177e4SLinus Torvalds struct percpu_struct *cpu; 7671da177e4SLinus Torvalds 7681da177e4SLinus Torvalds switch (op) { 7691da177e4SLinus Torvalds case GSI_IEEE_FP_CONTROL: 7701da177e4SLinus Torvalds /* Return current software fp control & status bits. */ 7711da177e4SLinus Torvalds /* Note that DU doesn't verify available space here. */ 7721da177e4SLinus Torvalds 7731da177e4SLinus Torvalds w = current_thread_info()->ieee_state & IEEE_SW_MASK; 7741da177e4SLinus Torvalds w = swcr_update_status(w, rdfpcr()); 7751da177e4SLinus Torvalds if (put_user(w, (unsigned long __user *) buffer)) 7761da177e4SLinus Torvalds return -EFAULT; 7771da177e4SLinus Torvalds return 0; 7781da177e4SLinus Torvalds 7791da177e4SLinus Torvalds case GSI_IEEE_STATE_AT_SIGNAL: 7801da177e4SLinus Torvalds /* 7811da177e4SLinus Torvalds * Not sure anybody will ever use this weird stuff. These 7821da177e4SLinus Torvalds * ops can be used (under OSF/1) to set the fpcr that should 7831da177e4SLinus Torvalds * be used when a signal handler starts executing. 7841da177e4SLinus Torvalds */ 7851da177e4SLinus Torvalds break; 7861da177e4SLinus Torvalds 7871da177e4SLinus Torvalds case GSI_UACPROC: 7881da177e4SLinus Torvalds if (nbytes < sizeof(unsigned int)) 7891da177e4SLinus Torvalds return -EINVAL; 7903185bd26SAl Viro w = current_thread_info()->status & UAC_BITMASK; 7911da177e4SLinus Torvalds if (put_user(w, (unsigned int __user *)buffer)) 7921da177e4SLinus Torvalds return -EFAULT; 7931da177e4SLinus Torvalds return 1; 7941da177e4SLinus Torvalds 7951da177e4SLinus Torvalds case GSI_PROC_TYPE: 7961da177e4SLinus Torvalds if (nbytes < sizeof(unsigned long)) 7971da177e4SLinus Torvalds return -EINVAL; 7981da177e4SLinus Torvalds cpu = (struct percpu_struct*) 7991da177e4SLinus Torvalds ((char*)hwrpb + hwrpb->processor_offset); 8001da177e4SLinus Torvalds w = cpu->type; 8011da177e4SLinus Torvalds if (put_user(w, (unsigned long __user*)buffer)) 8021da177e4SLinus Torvalds return -EFAULT; 8031da177e4SLinus Torvalds return 1; 8041da177e4SLinus Torvalds 8051da177e4SLinus Torvalds case GSI_GET_HWRPB: 80621c5977aSDan Rosenberg if (nbytes > sizeof(*hwrpb)) 8071da177e4SLinus Torvalds return -EINVAL; 8081da177e4SLinus Torvalds if (copy_to_user(buffer, hwrpb, nbytes) != 0) 8091da177e4SLinus Torvalds return -EFAULT; 8101da177e4SLinus Torvalds return 1; 8111da177e4SLinus Torvalds 8121da177e4SLinus Torvalds default: 8131da177e4SLinus Torvalds break; 8141da177e4SLinus Torvalds } 8151da177e4SLinus Torvalds 8161da177e4SLinus Torvalds return -EOPNOTSUPP; 8171da177e4SLinus Torvalds } 8181da177e4SLinus Torvalds 819e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer, 820e5d9a90cSIvan Kokshaysky unsigned long, nbytes, int __user *, start, void __user *, arg) 8211da177e4SLinus Torvalds { 8221da177e4SLinus Torvalds switch (op) { 8231da177e4SLinus Torvalds case SSI_IEEE_FP_CONTROL: { 8241da177e4SLinus Torvalds unsigned long swcr, fpcr; 8251da177e4SLinus Torvalds unsigned int *state; 8261da177e4SLinus Torvalds 8271da177e4SLinus Torvalds /* 8281da177e4SLinus Torvalds * Alpha Architecture Handbook 4.7.7.3: 8291da177e4SLinus Torvalds * To be fully IEEE compiant, we must track the current IEEE 830c3a2ddeeSSimon Arlott * exception state in software, because spurious bits can be 8311da177e4SLinus Torvalds * set in the trap shadow of a software-complete insn. 8321da177e4SLinus Torvalds */ 8331da177e4SLinus Torvalds 8341da177e4SLinus Torvalds if (get_user(swcr, (unsigned long __user *)buffer)) 8351da177e4SLinus Torvalds return -EFAULT; 8361da177e4SLinus Torvalds state = ¤t_thread_info()->ieee_state; 8371da177e4SLinus Torvalds 838fc520525Sgushengxian /* Update software trap enable bits. */ 8391da177e4SLinus Torvalds *state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK); 8401da177e4SLinus Torvalds 8411da177e4SLinus Torvalds /* Update the real fpcr. */ 8421da177e4SLinus Torvalds fpcr = rdfpcr() & FPCR_DYN_MASK; 8431da177e4SLinus Torvalds fpcr |= ieee_swcr_to_fpcr(swcr); 8441da177e4SLinus Torvalds wrfpcr(fpcr); 8451da177e4SLinus Torvalds 8461da177e4SLinus Torvalds return 0; 8471da177e4SLinus Torvalds } 8481da177e4SLinus Torvalds 8491da177e4SLinus Torvalds case SSI_IEEE_RAISE_EXCEPTION: { 8501da177e4SLinus Torvalds unsigned long exc, swcr, fpcr, fex; 8511da177e4SLinus Torvalds unsigned int *state; 8521da177e4SLinus Torvalds 8531da177e4SLinus Torvalds if (get_user(exc, (unsigned long __user *)buffer)) 8541da177e4SLinus Torvalds return -EFAULT; 8551da177e4SLinus Torvalds state = ¤t_thread_info()->ieee_state; 8561da177e4SLinus Torvalds exc &= IEEE_STATUS_MASK; 8571da177e4SLinus Torvalds 858fc520525Sgushengxian /* Update software trap enable bits. */ 8591da177e4SLinus Torvalds swcr = (*state & IEEE_SW_MASK) | exc; 8601da177e4SLinus Torvalds *state |= exc; 8611da177e4SLinus Torvalds 8621da177e4SLinus Torvalds /* Update the real fpcr. */ 8631da177e4SLinus Torvalds fpcr = rdfpcr(); 8641da177e4SLinus Torvalds fpcr |= ieee_swcr_to_fpcr(swcr); 8651da177e4SLinus Torvalds wrfpcr(fpcr); 8661da177e4SLinus Torvalds 8671da177e4SLinus Torvalds /* If any exceptions set by this call, and are unmasked, 8681da177e4SLinus Torvalds send a signal. Old exceptions are not signaled. */ 8691da177e4SLinus Torvalds fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr; 8701da177e4SLinus Torvalds if (fex) { 8714cc13e4fSEric W. Biederman int si_code = FPE_FLTUNK; 8721da177e4SLinus Torvalds 8731da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND; 8741da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES; 8751da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND; 8761da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF; 8771da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV; 8781da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV; 8791da177e4SLinus Torvalds 8807de5f68dSEric W. Biederman send_sig_fault_trapno(SIGFPE, si_code, 8815f50245bSEric W. Biederman (void __user *)NULL, /* FIXME */ 8825f50245bSEric W. Biederman 0, current); 8831da177e4SLinus Torvalds } 8841da177e4SLinus Torvalds return 0; 8851da177e4SLinus Torvalds } 8861da177e4SLinus Torvalds 8871da177e4SLinus Torvalds case SSI_IEEE_STATE_AT_SIGNAL: 8881da177e4SLinus Torvalds case SSI_IEEE_IGNORE_STATE_AT_SIGNAL: 8891da177e4SLinus Torvalds /* 8901da177e4SLinus Torvalds * Not sure anybody will ever use this weird stuff. These 8911da177e4SLinus Torvalds * ops can be used (under OSF/1) to set the fpcr that should 8921da177e4SLinus Torvalds * be used when a signal handler starts executing. 8931da177e4SLinus Torvalds */ 8941da177e4SLinus Torvalds break; 8951da177e4SLinus Torvalds 8961da177e4SLinus Torvalds case SSI_NVPAIRS: { 8973185bd26SAl Viro unsigned __user *p = buffer; 8983185bd26SAl Viro unsigned i; 8991da177e4SLinus Torvalds 9003185bd26SAl Viro for (i = 0, p = buffer; i < nbytes; ++i, p += 2) { 9013185bd26SAl Viro unsigned v, w, status; 9021da177e4SLinus Torvalds 9033185bd26SAl Viro if (get_user(v, p) || get_user(w, p + 1)) 9041da177e4SLinus Torvalds return -EFAULT; 9051da177e4SLinus Torvalds switch (v) { 9061da177e4SLinus Torvalds case SSIN_UACPROC: 9073185bd26SAl Viro w &= UAC_BITMASK; 9083185bd26SAl Viro status = current_thread_info()->status; 9093185bd26SAl Viro status = (status & ~UAC_BITMASK) | w; 9103185bd26SAl Viro current_thread_info()->status = status; 9111da177e4SLinus Torvalds break; 9121da177e4SLinus Torvalds 9131da177e4SLinus Torvalds default: 9141da177e4SLinus Torvalds return -EOPNOTSUPP; 9151da177e4SLinus Torvalds } 9161da177e4SLinus Torvalds } 9171da177e4SLinus Torvalds return 0; 9181da177e4SLinus Torvalds } 9191da177e4SLinus Torvalds 92050744deeSMans Rullgard case SSI_LMF: 92150744deeSMans Rullgard return 0; 92250744deeSMans Rullgard 9231da177e4SLinus Torvalds default: 9241da177e4SLinus Torvalds break; 9251da177e4SLinus Torvalds } 9261da177e4SLinus Torvalds 9271da177e4SLinus Torvalds return -EOPNOTSUPP; 9281da177e4SLinus Torvalds } 9291da177e4SLinus Torvalds 9301da177e4SLinus Torvalds /* Translations due to the fact that OSF's time_t is an int. Which 9311da177e4SLinus Torvalds affects all sorts of things, like timeval and itimerval. */ 9321da177e4SLinus Torvalds 9331da177e4SLinus Torvalds extern struct timezone sys_tz; 9341da177e4SLinus Torvalds 9351da177e4SLinus Torvalds struct timeval32 9361da177e4SLinus Torvalds { 9371da177e4SLinus Torvalds int tv_sec, tv_usec; 9381da177e4SLinus Torvalds }; 9391da177e4SLinus Torvalds 9401da177e4SLinus Torvalds struct itimerval32 9411da177e4SLinus Torvalds { 9421da177e4SLinus Torvalds struct timeval32 it_interval; 9431da177e4SLinus Torvalds struct timeval32 it_value; 9441da177e4SLinus Torvalds }; 9451da177e4SLinus Torvalds 9461da177e4SLinus Torvalds static inline long 947ce4c2535SArnd Bergmann get_tv32(struct timespec64 *o, struct timeval32 __user *i) 9481da177e4SLinus Torvalds { 9491cc6c463SAl Viro struct timeval32 tv; 9501cc6c463SAl Viro if (copy_from_user(&tv, i, sizeof(struct timeval32))) 9511cc6c463SAl Viro return -EFAULT; 9521cc6c463SAl Viro o->tv_sec = tv.tv_sec; 953ce4c2535SArnd Bergmann o->tv_nsec = tv.tv_usec * NSEC_PER_USEC; 9541cc6c463SAl Viro return 0; 9551da177e4SLinus Torvalds } 9561da177e4SLinus Torvalds 9571da177e4SLinus Torvalds static inline long 958ce4c2535SArnd Bergmann put_tv32(struct timeval32 __user *o, struct timespec64 *i) 959ce4c2535SArnd Bergmann { 960ce4c2535SArnd Bergmann return copy_to_user(o, &(struct timeval32){ 961ce4c2535SArnd Bergmann .tv_sec = i->tv_sec, 962ce4c2535SArnd Bergmann .tv_usec = i->tv_nsec / NSEC_PER_USEC}, 963ce4c2535SArnd Bergmann sizeof(struct timeval32)); 964ce4c2535SArnd Bergmann } 965ce4c2535SArnd Bergmann 966ce4c2535SArnd Bergmann static inline long 967bdd565f8SArnd Bergmann put_tv_to_tv32(struct timeval32 __user *o, struct __kernel_old_timeval *i) 9681da177e4SLinus Torvalds { 9691cc6c463SAl Viro return copy_to_user(o, &(struct timeval32){ 97047669fb6SArnd Bergmann .tv_sec = i->tv_sec, 97147669fb6SArnd Bergmann .tv_usec = i->tv_usec}, 9721cc6c463SAl Viro sizeof(struct timeval32)); 9731da177e4SLinus Torvalds } 9741da177e4SLinus Torvalds 9751da177e4SLinus Torvalds static inline void 9761da177e4SLinus Torvalds jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value) 9771da177e4SLinus Torvalds { 9781da177e4SLinus Torvalds value->tv_usec = (jiffies % HZ) * (1000000L / HZ); 9791da177e4SLinus Torvalds value->tv_sec = jiffies / HZ; 9801da177e4SLinus Torvalds } 9811da177e4SLinus Torvalds 982e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv, 983e5d9a90cSIvan Kokshaysky struct timezone __user *, tz) 9841da177e4SLinus Torvalds { 9851da177e4SLinus Torvalds if (tv) { 986ce4c2535SArnd Bergmann struct timespec64 kts; 987ce4c2535SArnd Bergmann 988ce4c2535SArnd Bergmann ktime_get_real_ts64(&kts); 989ce4c2535SArnd Bergmann if (put_tv32(tv, &kts)) 9901da177e4SLinus Torvalds return -EFAULT; 9911da177e4SLinus Torvalds } 9921da177e4SLinus Torvalds if (tz) { 9931da177e4SLinus Torvalds if (copy_to_user(tz, &sys_tz, sizeof(sys_tz))) 9941da177e4SLinus Torvalds return -EFAULT; 9951da177e4SLinus Torvalds } 9961da177e4SLinus Torvalds return 0; 9971da177e4SLinus Torvalds } 9981da177e4SLinus Torvalds 999e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv, 1000e5d9a90cSIvan Kokshaysky struct timezone __user *, tz) 10011da177e4SLinus Torvalds { 1002ce4c2535SArnd Bergmann struct timespec64 kts; 10031da177e4SLinus Torvalds struct timezone ktz; 10041da177e4SLinus Torvalds 10051da177e4SLinus Torvalds if (tv) { 1006ce4c2535SArnd Bergmann if (get_tv32(&kts, tv)) 10071da177e4SLinus Torvalds return -EFAULT; 10081da177e4SLinus Torvalds } 10091da177e4SLinus Torvalds if (tz) { 10101da177e4SLinus Torvalds if (copy_from_user(&ktz, tz, sizeof(*tz))) 10111da177e4SLinus Torvalds return -EFAULT; 10121da177e4SLinus Torvalds } 10131da177e4SLinus Torvalds 1014ce4c2535SArnd Bergmann return do_sys_settimeofday64(tv ? &kts : NULL, tz ? &ktz : NULL); 10151da177e4SLinus Torvalds } 10161da177e4SLinus Torvalds 1017baa73d9eSNicolas Pitre asmlinkage long sys_ni_posix_timers(void); 1018baa73d9eSNicolas Pitre 1019c7887325SDavid Howells SYSCALL_DEFINE2(osf_utimes, const char __user *, filename, 1020e5d9a90cSIvan Kokshaysky struct timeval32 __user *, tvs) 10211da177e4SLinus Torvalds { 1022ce4c2535SArnd Bergmann struct timespec64 tv[2]; 10231da177e4SLinus Torvalds 10241da177e4SLinus Torvalds if (tvs) { 1025ce4c2535SArnd Bergmann if (get_tv32(&tv[0], &tvs[0]) || 1026ce4c2535SArnd Bergmann get_tv32(&tv[1], &tvs[1])) 10271da177e4SLinus Torvalds return -EFAULT; 10281c710c89SUlrich Drepper 1029ce4c2535SArnd Bergmann if (tv[0].tv_nsec < 0 || tv[0].tv_nsec >= 1000000000 || 1030ce4c2535SArnd Bergmann tv[1].tv_nsec < 0 || tv[1].tv_nsec >= 1000000000) 10311c710c89SUlrich Drepper return -EINVAL; 10321da177e4SLinus Torvalds } 10331da177e4SLinus Torvalds 10341c710c89SUlrich Drepper return do_utimes(AT_FDCWD, filename, tvs ? tv : NULL, 0); 10351da177e4SLinus Torvalds } 10361da177e4SLinus Torvalds 1037e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE5(osf_select, int, n, fd_set __user *, inp, fd_set __user *, outp, 1038e5d9a90cSIvan Kokshaysky fd_set __user *, exp, struct timeval32 __user *, tvp) 10391da177e4SLinus Torvalds { 1040ce4c2535SArnd Bergmann struct timespec64 end_time, *to = NULL; 10411da177e4SLinus Torvalds if (tvp) { 1042ce4c2535SArnd Bergmann struct timespec64 tv; 104314e2acd8SArjan van de Ven to = &end_time; 104414e2acd8SArjan van de Ven 10451cc6c463SAl Viro if (get_tv32(&tv, tvp)) 1046a2dcb44cSAl Viro return -EFAULT; 10471da177e4SLinus Torvalds 1048ce4c2535SArnd Bergmann if (tv.tv_sec < 0 || tv.tv_nsec < 0) 1049a2dcb44cSAl Viro return -EINVAL; 10501da177e4SLinus Torvalds 1051ce4c2535SArnd Bergmann if (poll_select_set_timeout(to, tv.tv_sec, tv.tv_nsec)) 105214e2acd8SArjan van de Ven return -EINVAL; 105314e2acd8SArjan van de Ven 10541da177e4SLinus Torvalds } 10551da177e4SLinus Torvalds 10561da177e4SLinus Torvalds /* OSF does not copy back the remaining time. */ 105714e2acd8SArjan van de Ven return core_sys_select(n, inp, outp, exp, to); 10581da177e4SLinus Torvalds } 10591da177e4SLinus Torvalds 10601da177e4SLinus Torvalds struct rusage32 { 10611da177e4SLinus Torvalds struct timeval32 ru_utime; /* user time used */ 10621da177e4SLinus Torvalds struct timeval32 ru_stime; /* system time used */ 10631da177e4SLinus Torvalds long ru_maxrss; /* maximum resident set size */ 10641da177e4SLinus Torvalds long ru_ixrss; /* integral shared memory size */ 10651da177e4SLinus Torvalds long ru_idrss; /* integral unshared data size */ 10661da177e4SLinus Torvalds long ru_isrss; /* integral unshared stack size */ 10671da177e4SLinus Torvalds long ru_minflt; /* page reclaims */ 10681da177e4SLinus Torvalds long ru_majflt; /* page faults */ 10691da177e4SLinus Torvalds long ru_nswap; /* swaps */ 10701da177e4SLinus Torvalds long ru_inblock; /* block input operations */ 10711da177e4SLinus Torvalds long ru_oublock; /* block output operations */ 10721da177e4SLinus Torvalds long ru_msgsnd; /* messages sent */ 10731da177e4SLinus Torvalds long ru_msgrcv; /* messages received */ 10741da177e4SLinus Torvalds long ru_nsignals; /* signals received */ 10751da177e4SLinus Torvalds long ru_nvcsw; /* voluntary context switches */ 10761da177e4SLinus Torvalds long ru_nivcsw; /* involuntary " */ 10771da177e4SLinus Torvalds }; 10781da177e4SLinus Torvalds 1079e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru) 10801da177e4SLinus Torvalds { 10811da177e4SLinus Torvalds struct rusage32 r; 1082dc9b77b5SFrederic Weisbecker u64 utime, stime; 10832019e8a3SFrederic Weisbecker unsigned long utime_jiffies, stime_jiffies; 10841da177e4SLinus Torvalds 10851da177e4SLinus Torvalds if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN) 10861da177e4SLinus Torvalds return -EINVAL; 10871da177e4SLinus Torvalds 10881da177e4SLinus Torvalds memset(&r, 0, sizeof(r)); 10891da177e4SLinus Torvalds switch (who) { 10901da177e4SLinus Torvalds case RUSAGE_SELF: 1091dc9b77b5SFrederic Weisbecker task_cputime(current, &utime, &stime); 1092dc9b77b5SFrederic Weisbecker utime_jiffies = nsecs_to_jiffies(utime); 1093dc9b77b5SFrederic Weisbecker stime_jiffies = nsecs_to_jiffies(stime); 10942019e8a3SFrederic Weisbecker jiffies_to_timeval32(utime_jiffies, &r.ru_utime); 10952019e8a3SFrederic Weisbecker jiffies_to_timeval32(stime_jiffies, &r.ru_stime); 10961da177e4SLinus Torvalds r.ru_minflt = current->min_flt; 10971da177e4SLinus Torvalds r.ru_majflt = current->maj_flt; 10981da177e4SLinus Torvalds break; 10991da177e4SLinus Torvalds case RUSAGE_CHILDREN: 11005613fda9SFrederic Weisbecker utime_jiffies = nsecs_to_jiffies(current->signal->cutime); 11015613fda9SFrederic Weisbecker stime_jiffies = nsecs_to_jiffies(current->signal->cstime); 11022019e8a3SFrederic Weisbecker jiffies_to_timeval32(utime_jiffies, &r.ru_utime); 11032019e8a3SFrederic Weisbecker jiffies_to_timeval32(stime_jiffies, &r.ru_stime); 11041da177e4SLinus Torvalds r.ru_minflt = current->signal->cmin_flt; 11051da177e4SLinus Torvalds r.ru_majflt = current->signal->cmaj_flt; 11061da177e4SLinus Torvalds break; 11071da177e4SLinus Torvalds } 11081da177e4SLinus Torvalds 11091da177e4SLinus Torvalds return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0; 11101da177e4SLinus Torvalds } 11111da177e4SLinus Torvalds 1112e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options, 1113e5d9a90cSIvan Kokshaysky struct rusage32 __user *, ur) 11141da177e4SLinus Torvalds { 111592ebce5aSAl Viro struct rusage r; 1116f88a333bSAl Viro long err = kernel_wait4(pid, ustatus, options, &r); 111792ebce5aSAl Viro if (err <= 0) 111892ebce5aSAl Viro return err; 111992ebce5aSAl Viro if (!ur) 112092ebce5aSAl Viro return err; 1121ce4c2535SArnd Bergmann if (put_tv_to_tv32(&ur->ru_utime, &r.ru_utime)) 112292ebce5aSAl Viro return -EFAULT; 1123ce4c2535SArnd Bergmann if (put_tv_to_tv32(&ur->ru_stime, &r.ru_stime)) 112492ebce5aSAl Viro return -EFAULT; 112592ebce5aSAl Viro if (copy_to_user(&ur->ru_maxrss, &r.ru_maxrss, 112692ebce5aSAl Viro sizeof(struct rusage32) - offsetof(struct rusage32, ru_maxrss))) 112792ebce5aSAl Viro return -EFAULT; 112892ebce5aSAl Viro return err; 11291da177e4SLinus Torvalds } 11301da177e4SLinus Torvalds 11311da177e4SLinus Torvalds /* 11321da177e4SLinus Torvalds * I don't know what the parameters are: the first one 11331da177e4SLinus Torvalds * seems to be a timeval pointer, and I suspect the second 11341da177e4SLinus Torvalds * one is the time remaining.. Ho humm.. No documentation. 11351da177e4SLinus Torvalds */ 1136e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_usleep_thread, struct timeval32 __user *, sleep, 1137e5d9a90cSIvan Kokshaysky struct timeval32 __user *, remain) 11381da177e4SLinus Torvalds { 1139ce4c2535SArnd Bergmann struct timespec64 tmp; 11401da177e4SLinus Torvalds unsigned long ticks; 11411da177e4SLinus Torvalds 11421da177e4SLinus Torvalds if (get_tv32(&tmp, sleep)) 11431da177e4SLinus Torvalds goto fault; 11441da177e4SLinus Torvalds 1145ce4c2535SArnd Bergmann ticks = timespec64_to_jiffies(&tmp); 11461da177e4SLinus Torvalds 114720c6abd1SNishanth Aravamudan ticks = schedule_timeout_interruptible(ticks); 11481da177e4SLinus Torvalds 11491da177e4SLinus Torvalds if (remain) { 1150ce4c2535SArnd Bergmann jiffies_to_timespec64(ticks, &tmp); 11511da177e4SLinus Torvalds if (put_tv32(remain, &tmp)) 11521da177e4SLinus Torvalds goto fault; 11531da177e4SLinus Torvalds } 11541da177e4SLinus Torvalds 11551da177e4SLinus Torvalds return 0; 11561da177e4SLinus Torvalds fault: 11571da177e4SLinus Torvalds return -EFAULT; 11581da177e4SLinus Torvalds } 11591da177e4SLinus Torvalds 11601da177e4SLinus Torvalds 11611da177e4SLinus Torvalds struct timex32 { 11621da177e4SLinus Torvalds unsigned int modes; /* mode selector */ 11631da177e4SLinus Torvalds long offset; /* time offset (usec) */ 11641da177e4SLinus Torvalds long freq; /* frequency offset (scaled ppm) */ 11651da177e4SLinus Torvalds long maxerror; /* maximum error (usec) */ 11661da177e4SLinus Torvalds long esterror; /* estimated error (usec) */ 11671da177e4SLinus Torvalds int status; /* clock command/status */ 11681da177e4SLinus Torvalds long constant; /* pll time constant */ 11691da177e4SLinus Torvalds long precision; /* clock precision (usec) (read only) */ 11701da177e4SLinus Torvalds long tolerance; /* clock frequency tolerance (ppm) 11711da177e4SLinus Torvalds * (read only) 11721da177e4SLinus Torvalds */ 11731da177e4SLinus Torvalds struct timeval32 time; /* (read only) */ 11741da177e4SLinus Torvalds long tick; /* (modified) usecs between clock ticks */ 11751da177e4SLinus Torvalds 11761da177e4SLinus Torvalds long ppsfreq; /* pps frequency (scaled ppm) (ro) */ 11771da177e4SLinus Torvalds long jitter; /* pps jitter (us) (ro) */ 11781da177e4SLinus Torvalds int shift; /* interval duration (s) (shift) (ro) */ 11791da177e4SLinus Torvalds long stabil; /* pps stability (scaled ppm) (ro) */ 11801da177e4SLinus Torvalds long jitcnt; /* jitter limit exceeded (ro) */ 11811da177e4SLinus Torvalds long calcnt; /* calibration intervals (ro) */ 11821da177e4SLinus Torvalds long errcnt; /* calibration errors (ro) */ 11831da177e4SLinus Torvalds long stbcnt; /* stability limit exceeded (ro) */ 11841da177e4SLinus Torvalds 11851da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 11861da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 11871da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 11881da177e4SLinus Torvalds }; 11891da177e4SLinus Torvalds 1190e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p) 11911da177e4SLinus Torvalds { 1192ead25417SDeepa Dinamani struct __kernel_timex txc; 11931da177e4SLinus Torvalds int ret; 11941da177e4SLinus Torvalds 11951da177e4SLinus Torvalds /* copy relevant bits of struct timex. */ 11961da177e4SLinus Torvalds if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) || 11971da177e4SLinus Torvalds copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) - 11982b5efc08SAl Viro offsetof(struct timex32, tick))) 11991da177e4SLinus Torvalds return -EFAULT; 12001da177e4SLinus Torvalds 12011da177e4SLinus Torvalds ret = do_adjtimex(&txc); 12021da177e4SLinus Torvalds if (ret < 0) 12031da177e4SLinus Torvalds return ret; 12041da177e4SLinus Torvalds 12051da177e4SLinus Torvalds /* copy back to timex32 */ 12061da177e4SLinus Torvalds if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) || 12071da177e4SLinus Torvalds (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) - 12081da177e4SLinus Torvalds offsetof(struct timex32, tick))) || 1209ead25417SDeepa Dinamani (put_user(txc.time.tv_sec, &txc_p->time.tv_sec)) || 1210ead25417SDeepa Dinamani (put_user(txc.time.tv_usec, &txc_p->time.tv_usec))) 12111da177e4SLinus Torvalds return -EFAULT; 12121da177e4SLinus Torvalds 12131da177e4SLinus Torvalds return ret; 12141da177e4SLinus Torvalds } 12151da177e4SLinus Torvalds 12161da177e4SLinus Torvalds /* Get an address range which is currently unmapped. Similar to the 12171da177e4SLinus Torvalds generic version except that we know how to honor ADDR_LIMIT_32BIT. */ 12181da177e4SLinus Torvalds 12191da177e4SLinus Torvalds static unsigned long 12201da177e4SLinus Torvalds arch_get_unmapped_area_1(unsigned long addr, unsigned long len, 12211da177e4SLinus Torvalds unsigned long limit) 12221da177e4SLinus Torvalds { 12236d1c7ccaSMichel Lespinasse struct vm_unmapped_area_info info; 12241da177e4SLinus Torvalds 12256d1c7ccaSMichel Lespinasse info.flags = 0; 12266d1c7ccaSMichel Lespinasse info.length = len; 12276d1c7ccaSMichel Lespinasse info.low_limit = addr; 12286d1c7ccaSMichel Lespinasse info.high_limit = limit; 12296d1c7ccaSMichel Lespinasse info.align_mask = 0; 12306d1c7ccaSMichel Lespinasse info.align_offset = 0; 12316d1c7ccaSMichel Lespinasse return vm_unmapped_area(&info); 12321da177e4SLinus Torvalds } 12331da177e4SLinus Torvalds 12341da177e4SLinus Torvalds unsigned long 12351da177e4SLinus Torvalds arch_get_unmapped_area(struct file *filp, unsigned long addr, 12361da177e4SLinus Torvalds unsigned long len, unsigned long pgoff, 12371da177e4SLinus Torvalds unsigned long flags) 12381da177e4SLinus Torvalds { 12391da177e4SLinus Torvalds unsigned long limit; 12401da177e4SLinus Torvalds 12411da177e4SLinus Torvalds /* "32 bit" actually means 31 bit, since pointers sign extend. */ 12421da177e4SLinus Torvalds if (current->personality & ADDR_LIMIT_32BIT) 12431da177e4SLinus Torvalds limit = 0x80000000; 12441da177e4SLinus Torvalds else 12451da177e4SLinus Torvalds limit = TASK_SIZE; 12461da177e4SLinus Torvalds 12471da177e4SLinus Torvalds if (len > limit) 12481da177e4SLinus Torvalds return -ENOMEM; 12491da177e4SLinus Torvalds 12504b87b3b2SBenjamin Herrenschmidt if (flags & MAP_FIXED) 12514b87b3b2SBenjamin Herrenschmidt return addr; 12524b87b3b2SBenjamin Herrenschmidt 12531da177e4SLinus Torvalds /* First, see if the given suggestion fits. 12541da177e4SLinus Torvalds 12551da177e4SLinus Torvalds The OSF/1 loader (/sbin/loader) relies on us returning an 12561da177e4SLinus Torvalds address larger than the requested if one exists, which is 12571da177e4SLinus Torvalds a terribly broken way to program. 12581da177e4SLinus Torvalds 12591da177e4SLinus Torvalds That said, I can see the use in being able to suggest not 12601da177e4SLinus Torvalds merely specific addresses, but regions of memory -- perhaps 12611da177e4SLinus Torvalds this feature should be incorporated into all ports? */ 12621da177e4SLinus Torvalds 12631da177e4SLinus Torvalds if (addr) { 12641da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit); 12651da177e4SLinus Torvalds if (addr != (unsigned long) -ENOMEM) 12661da177e4SLinus Torvalds return addr; 12671da177e4SLinus Torvalds } 12681da177e4SLinus Torvalds 12691da177e4SLinus Torvalds /* Next, try allocating at TASK_UNMAPPED_BASE. */ 12701da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE), 12711da177e4SLinus Torvalds len, limit); 12721da177e4SLinus Torvalds if (addr != (unsigned long) -ENOMEM) 12731da177e4SLinus Torvalds return addr; 12741da177e4SLinus Torvalds 12751da177e4SLinus Torvalds /* Finally, try allocating in low memory. */ 12761da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit); 12771da177e4SLinus Torvalds 12781da177e4SLinus Torvalds return addr; 12791da177e4SLinus Torvalds } 12801da177e4SLinus Torvalds 12811da177e4SLinus Torvalds #ifdef CONFIG_OSF4_COMPAT 12821da177e4SLinus Torvalds /* Clear top 32 bits of iov_len in the user's buffer for 12831da177e4SLinus Torvalds compatibility with old versions of OSF/1 where iov_len 12841da177e4SLinus Torvalds was defined as int. */ 12851da177e4SLinus Torvalds static int 12861da177e4SLinus Torvalds osf_fix_iov_len(const struct iovec __user *iov, unsigned long count) 12871da177e4SLinus Torvalds { 12881da177e4SLinus Torvalds unsigned long i; 12891da177e4SLinus Torvalds 12901da177e4SLinus Torvalds for (i = 0 ; i < count ; i++) { 12911da177e4SLinus Torvalds int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1; 12921da177e4SLinus Torvalds 12931da177e4SLinus Torvalds if (put_user(0, iov_len_high)) 12941da177e4SLinus Torvalds return -EFAULT; 12951da177e4SLinus Torvalds } 12961da177e4SLinus Torvalds return 0; 12971da177e4SLinus Torvalds } 1298d8bf616bSFiroz Khan #endif 12991da177e4SLinus Torvalds 1300e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_readv, unsigned long, fd, 1301e5d9a90cSIvan Kokshaysky const struct iovec __user *, vector, unsigned long, count) 13021da177e4SLinus Torvalds { 1303d8bf616bSFiroz Khan #ifdef CONFIG_OSF4_COMPAT 13041da177e4SLinus Torvalds if (unlikely(personality(current->personality) == PER_OSF4)) 13051da177e4SLinus Torvalds if (osf_fix_iov_len(vector, count)) 13061da177e4SLinus Torvalds return -EFAULT; 1307d8bf616bSFiroz Khan #endif 1308d8bf616bSFiroz Khan 13091da177e4SLinus Torvalds return sys_readv(fd, vector, count); 13101da177e4SLinus Torvalds } 13111da177e4SLinus Torvalds 1312e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_writev, unsigned long, fd, 1313e5d9a90cSIvan Kokshaysky const struct iovec __user *, vector, unsigned long, count) 13141da177e4SLinus Torvalds { 1315d8bf616bSFiroz Khan #ifdef CONFIG_OSF4_COMPAT 13161da177e4SLinus Torvalds if (unlikely(personality(current->personality) == PER_OSF4)) 13171da177e4SLinus Torvalds if (osf_fix_iov_len(vector, count)) 13181da177e4SLinus Torvalds return -EFAULT; 1319d8bf616bSFiroz Khan #endif 13201da177e4SLinus Torvalds return sys_writev(fd, vector, count); 13211da177e4SLinus Torvalds } 13221da177e4SLinus Torvalds 1323be53db6eSAl Viro SYSCALL_DEFINE2(osf_getpriority, int, which, int, who) 1324be53db6eSAl Viro { 1325be53db6eSAl Viro int prio = sys_getpriority(which, who); 1326be53db6eSAl Viro if (prio >= 0) { 1327be53db6eSAl Viro /* Return value is the unbiased priority, i.e. 20 - prio. 1328be53db6eSAl Viro This does result in negative return values, so signal 1329be53db6eSAl Viro no error */ 1330be53db6eSAl Viro force_successful_syscall_return(); 1331be53db6eSAl Viro prio = 20 - prio; 1332be53db6eSAl Viro } 1333be53db6eSAl Viro return prio; 1334be53db6eSAl Viro } 1335be53db6eSAl Viro 1336be53db6eSAl Viro SYSCALL_DEFINE0(getxuid) 1337be53db6eSAl Viro { 1338be53db6eSAl Viro current_pt_regs()->r20 = sys_geteuid(); 1339be53db6eSAl Viro return sys_getuid(); 1340be53db6eSAl Viro } 1341be53db6eSAl Viro 1342be53db6eSAl Viro SYSCALL_DEFINE0(getxgid) 1343be53db6eSAl Viro { 1344be53db6eSAl Viro current_pt_regs()->r20 = sys_getegid(); 1345be53db6eSAl Viro return sys_getgid(); 1346be53db6eSAl Viro } 1347be53db6eSAl Viro 1348be53db6eSAl Viro SYSCALL_DEFINE0(getxpid) 1349be53db6eSAl Viro { 1350be53db6eSAl Viro current_pt_regs()->r20 = sys_getppid(); 1351be53db6eSAl Viro return sys_getpid(); 1352be53db6eSAl Viro } 1353be53db6eSAl Viro 1354be53db6eSAl Viro SYSCALL_DEFINE0(alpha_pipe) 1355be53db6eSAl Viro { 1356be53db6eSAl Viro int fd[2]; 1357be53db6eSAl Viro int res = do_pipe_flags(fd, 0); 1358be53db6eSAl Viro if (!res) { 1359be53db6eSAl Viro /* The return values are in $0 and $20. */ 1360be53db6eSAl Viro current_pt_regs()->r20 = fd[1]; 1361be53db6eSAl Viro res = fd[0]; 1362be53db6eSAl Viro } 1363be53db6eSAl Viro return res; 1364be53db6eSAl Viro } 1365be53db6eSAl Viro 1366be53db6eSAl Viro SYSCALL_DEFINE1(sethae, unsigned long, val) 1367be53db6eSAl Viro { 1368be53db6eSAl Viro current_pt_regs()->hae = val; 1369be53db6eSAl Viro return 0; 1370be53db6eSAl Viro } 1371