11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * linux/arch/alpha/kernel/osf_sys.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 1995 Linus Torvalds 51da177e4SLinus Torvalds */ 61da177e4SLinus Torvalds 71da177e4SLinus Torvalds /* 81da177e4SLinus Torvalds * This file handles some of the stranger OSF/1 system call interfaces. 91da177e4SLinus Torvalds * Some of the system calls expect a non-C calling standard, others have 101da177e4SLinus Torvalds * special parameter blocks.. 111da177e4SLinus Torvalds */ 121da177e4SLinus Torvalds 131da177e4SLinus Torvalds #include <linux/errno.h> 143f07c014SIngo Molnar #include <linux/sched/signal.h> 1501042607SIngo Molnar #include <linux/sched/mm.h> 1668db0cf1SIngo Molnar #include <linux/sched/task_stack.h> 171da177e4SLinus Torvalds #include <linux/kernel.h> 181da177e4SLinus Torvalds #include <linux/mm.h> 191da177e4SLinus Torvalds #include <linux/smp.h> 201da177e4SLinus Torvalds #include <linux/stddef.h> 211da177e4SLinus Torvalds #include <linux/syscalls.h> 221da177e4SLinus Torvalds #include <linux/unistd.h> 231da177e4SLinus Torvalds #include <linux/ptrace.h> 241da177e4SLinus Torvalds #include <linux/user.h> 251da177e4SLinus Torvalds #include <linux/utsname.h> 261da177e4SLinus Torvalds #include <linux/time.h> 271da177e4SLinus Torvalds #include <linux/timex.h> 281da177e4SLinus Torvalds #include <linux/major.h> 291da177e4SLinus Torvalds #include <linux/stat.h> 301da177e4SLinus Torvalds #include <linux/mman.h> 311da177e4SLinus Torvalds #include <linux/shm.h> 321da177e4SLinus Torvalds #include <linux/poll.h> 331da177e4SLinus Torvalds #include <linux/file.h> 341da177e4SLinus Torvalds #include <linux/types.h> 351da177e4SLinus Torvalds #include <linux/ipc.h> 361da177e4SLinus Torvalds #include <linux/namei.h> 371da177e4SLinus Torvalds #include <linux/uio.h> 381da177e4SLinus Torvalds #include <linux/vfs.h> 394fb3a538SDipankar Sarma #include <linux/rcupdate.h> 405a0e3ad6STejun Heo #include <linux/slab.h> 411da177e4SLinus Torvalds 421da177e4SLinus Torvalds #include <asm/fpu.h> 431da177e4SLinus Torvalds #include <asm/io.h> 447c0f6ba6SLinus Torvalds #include <linux/uaccess.h> 451da177e4SLinus Torvalds #include <asm/sysinfo.h> 462df7a7d1SSergei Trofimovich #include <asm/thread_info.h> 471da177e4SLinus Torvalds #include <asm/hwrpb.h> 481da177e4SLinus Torvalds #include <asm/processor.h> 491da177e4SLinus Torvalds 501da177e4SLinus Torvalds /* 511da177e4SLinus Torvalds * Brk needs to return an error. Still support Linux's brk(0) query idiom, 521da177e4SLinus Torvalds * which OSF programs just shouldn't be doing. We're still not quite 531da177e4SLinus Torvalds * identical to OSF as we don't return 0 on success, but doing otherwise 541da177e4SLinus Torvalds * would require changes to libc. Hopefully this is good enough. 551da177e4SLinus Torvalds */ 56e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(osf_brk, unsigned long, brk) 571da177e4SLinus Torvalds { 581da177e4SLinus Torvalds unsigned long retval = sys_brk(brk); 591da177e4SLinus Torvalds if (brk && brk != retval) 601da177e4SLinus Torvalds retval = -ENOMEM; 611da177e4SLinus Torvalds return retval; 621da177e4SLinus Torvalds } 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds /* 651da177e4SLinus Torvalds * This is pure guess-work.. 661da177e4SLinus Torvalds */ 67e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start, 68e5d9a90cSIvan Kokshaysky unsigned long, text_len, unsigned long, bss_start, 69e5d9a90cSIvan Kokshaysky unsigned long, bss_len) 701da177e4SLinus Torvalds { 711da177e4SLinus Torvalds struct mm_struct *mm; 721da177e4SLinus Torvalds 731da177e4SLinus Torvalds mm = current->mm; 741da177e4SLinus Torvalds mm->end_code = bss_start + bss_len; 752444e56bSIvan Kokshaysky mm->start_brk = bss_start + bss_len; 761da177e4SLinus Torvalds mm->brk = bss_start + bss_len; 771da177e4SLinus Torvalds #if 0 781da177e4SLinus Torvalds printk("set_program_attributes(%lx %lx %lx %lx)\n", 791da177e4SLinus Torvalds text_start, text_len, bss_start, bss_len); 801da177e4SLinus Torvalds #endif 811da177e4SLinus Torvalds return 0; 821da177e4SLinus Torvalds } 831da177e4SLinus Torvalds 841da177e4SLinus Torvalds /* 851da177e4SLinus Torvalds * OSF/1 directory handling functions... 861da177e4SLinus Torvalds * 871da177e4SLinus Torvalds * The "getdents()" interface is much more sane: the "basep" stuff is 881da177e4SLinus Torvalds * braindamage (it can't really handle filesystems where the directory 891da177e4SLinus Torvalds * offset differences aren't the same as "d_reclen"). 901da177e4SLinus Torvalds */ 911da177e4SLinus Torvalds #define NAME_OFFSET offsetof (struct osf_dirent, d_name) 921da177e4SLinus Torvalds 931da177e4SLinus Torvalds struct osf_dirent { 941da177e4SLinus Torvalds unsigned int d_ino; 951da177e4SLinus Torvalds unsigned short d_reclen; 961da177e4SLinus Torvalds unsigned short d_namlen; 971da177e4SLinus Torvalds char d_name[1]; 981da177e4SLinus Torvalds }; 991da177e4SLinus Torvalds 1001da177e4SLinus Torvalds struct osf_dirent_callback { 1015c0ba4e0SAl Viro struct dir_context ctx; 1021da177e4SLinus Torvalds struct osf_dirent __user *dirent; 1031da177e4SLinus Torvalds long __user *basep; 1041da177e4SLinus Torvalds unsigned int count; 1051da177e4SLinus Torvalds int error; 1061da177e4SLinus Torvalds }; 1071da177e4SLinus Torvalds 1081da177e4SLinus Torvalds static int 109ac7576f4SMiklos Szeredi osf_filldir(struct dir_context *ctx, const char *name, int namlen, 110ac7576f4SMiklos Szeredi loff_t offset, u64 ino, unsigned int d_type) 1111da177e4SLinus Torvalds { 1121da177e4SLinus Torvalds struct osf_dirent __user *dirent; 113ac7576f4SMiklos Szeredi struct osf_dirent_callback *buf = 114ac7576f4SMiklos Szeredi container_of(ctx, struct osf_dirent_callback, ctx); 115180e53a7SMilind Arun Choudhary unsigned int reclen = ALIGN(NAME_OFFSET + namlen + 1, sizeof(u32)); 116afefdbb2SDavid Howells unsigned int d_ino; 1171da177e4SLinus Torvalds 1181da177e4SLinus Torvalds buf->error = -EINVAL; /* only used if we fail */ 1191da177e4SLinus Torvalds if (reclen > buf->count) 1201da177e4SLinus Torvalds return -EINVAL; 121afefdbb2SDavid Howells d_ino = ino; 122645e68edSAl Viro if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) { 123645e68edSAl Viro buf->error = -EOVERFLOW; 124afefdbb2SDavid Howells return -EOVERFLOW; 125645e68edSAl Viro } 1261da177e4SLinus Torvalds if (buf->basep) { 1271da177e4SLinus Torvalds if (put_user(offset, buf->basep)) 128645e68edSAl Viro goto Efault; 1291da177e4SLinus Torvalds buf->basep = NULL; 1301da177e4SLinus Torvalds } 1311da177e4SLinus Torvalds dirent = buf->dirent; 132645e68edSAl Viro if (put_user(d_ino, &dirent->d_ino) || 133645e68edSAl Viro put_user(namlen, &dirent->d_namlen) || 134645e68edSAl Viro put_user(reclen, &dirent->d_reclen) || 135645e68edSAl Viro copy_to_user(dirent->d_name, name, namlen) || 1361da177e4SLinus Torvalds put_user(0, dirent->d_name + namlen)) 137645e68edSAl Viro goto Efault; 1381da177e4SLinus Torvalds dirent = (void __user *)dirent + reclen; 1391da177e4SLinus Torvalds buf->dirent = dirent; 1401da177e4SLinus Torvalds buf->count -= reclen; 1411da177e4SLinus Torvalds return 0; 142645e68edSAl Viro Efault: 143645e68edSAl Viro buf->error = -EFAULT; 144645e68edSAl Viro return -EFAULT; 1451da177e4SLinus Torvalds } 1461da177e4SLinus Torvalds 147e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd, 148e5d9a90cSIvan Kokshaysky struct osf_dirent __user *, dirent, unsigned int, count, 149e5d9a90cSIvan Kokshaysky long __user *, basep) 1501da177e4SLinus Torvalds { 1511da177e4SLinus Torvalds int error; 15263b6df14SAl Viro struct fd arg = fdget_pos(fd); 153ac6614b7SAl Viro struct osf_dirent_callback buf = { 154ac6614b7SAl Viro .ctx.actor = osf_filldir, 155ac6614b7SAl Viro .dirent = dirent, 156ac6614b7SAl Viro .basep = basep, 157ac6614b7SAl Viro .count = count 158ac6614b7SAl Viro }; 1591da177e4SLinus Torvalds 1602903ff01SAl Viro if (!arg.file) 1612903ff01SAl Viro return -EBADF; 1621da177e4SLinus Torvalds 1635c0ba4e0SAl Viro error = iterate_dir(arg.file, &buf.ctx); 16453c9c5c0SAl Viro if (error >= 0) 1651da177e4SLinus Torvalds error = buf.error; 1661da177e4SLinus Torvalds if (count != buf.count) 1671da177e4SLinus Torvalds error = count - buf.count; 1681da177e4SLinus Torvalds 16963b6df14SAl Viro fdput_pos(arg); 1701da177e4SLinus Torvalds return error; 1711da177e4SLinus Torvalds } 1721da177e4SLinus Torvalds 1731da177e4SLinus Torvalds #undef NAME_OFFSET 1741da177e4SLinus Torvalds 175e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len, 176e5d9a90cSIvan Kokshaysky unsigned long, prot, unsigned long, flags, unsigned long, fd, 177e5d9a90cSIvan Kokshaysky unsigned long, off) 1781da177e4SLinus Torvalds { 179f8b72560SAl Viro unsigned long ret = -EINVAL; 1801da177e4SLinus Torvalds 1811da177e4SLinus Torvalds #if 0 1821da177e4SLinus Torvalds if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED)) 1831da177e4SLinus Torvalds printk("%s: unimplemented OSF mmap flags %04lx\n", 1841da177e4SLinus Torvalds current->comm, flags); 1851da177e4SLinus Torvalds #endif 186f8b72560SAl Viro if ((off + PAGE_ALIGN(len)) < off) 1871da177e4SLinus Torvalds goto out; 188f8b72560SAl Viro if (off & ~PAGE_MASK) 189f8b72560SAl Viro goto out; 190f8b72560SAl Viro ret = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); 1911da177e4SLinus Torvalds out: 1921da177e4SLinus Torvalds return ret; 1931da177e4SLinus Torvalds } 1941da177e4SLinus Torvalds 1957a8bb98cSMans Rullgard struct osf_stat { 1967a8bb98cSMans Rullgard int st_dev; 1977a8bb98cSMans Rullgard int st_pad1; 1987a8bb98cSMans Rullgard unsigned st_mode; 1997a8bb98cSMans Rullgard unsigned short st_nlink; 2007a8bb98cSMans Rullgard short st_nlink_reserved; 2017a8bb98cSMans Rullgard unsigned st_uid; 2027a8bb98cSMans Rullgard unsigned st_gid; 2037a8bb98cSMans Rullgard int st_rdev; 2047a8bb98cSMans Rullgard int st_ldev; 2057a8bb98cSMans Rullgard long st_size; 2067a8bb98cSMans Rullgard int st_pad2; 2077a8bb98cSMans Rullgard int st_uatime; 2087a8bb98cSMans Rullgard int st_pad3; 2097a8bb98cSMans Rullgard int st_umtime; 2107a8bb98cSMans Rullgard int st_pad4; 2117a8bb98cSMans Rullgard int st_uctime; 2127a8bb98cSMans Rullgard int st_pad5; 2137a8bb98cSMans Rullgard int st_pad6; 2147a8bb98cSMans Rullgard unsigned st_flags; 2157a8bb98cSMans Rullgard unsigned st_gen; 2167a8bb98cSMans Rullgard long st_spare[4]; 2177a8bb98cSMans Rullgard unsigned st_ino; 2187a8bb98cSMans Rullgard int st_ino_reserved; 2197a8bb98cSMans Rullgard int st_atime; 2207a8bb98cSMans Rullgard int st_atime_reserved; 2217a8bb98cSMans Rullgard int st_mtime; 2227a8bb98cSMans Rullgard int st_mtime_reserved; 2237a8bb98cSMans Rullgard int st_ctime; 2247a8bb98cSMans Rullgard int st_ctime_reserved; 2257a8bb98cSMans Rullgard long st_blksize; 2267a8bb98cSMans Rullgard long st_blocks; 2277a8bb98cSMans Rullgard }; 2281da177e4SLinus Torvalds 2291da177e4SLinus Torvalds /* 2301da177e4SLinus Torvalds * The OSF/1 statfs structure is much larger, but this should 2311da177e4SLinus Torvalds * match the beginning, at least. 2321da177e4SLinus Torvalds */ 2331da177e4SLinus Torvalds struct osf_statfs { 2341da177e4SLinus Torvalds short f_type; 2351da177e4SLinus Torvalds short f_flags; 2361da177e4SLinus Torvalds int f_fsize; 2371da177e4SLinus Torvalds int f_bsize; 2381da177e4SLinus Torvalds int f_blocks; 2391da177e4SLinus Torvalds int f_bfree; 2401da177e4SLinus Torvalds int f_bavail; 2411da177e4SLinus Torvalds int f_files; 2421da177e4SLinus Torvalds int f_ffree; 2431da177e4SLinus Torvalds __kernel_fsid_t f_fsid; 2441da177e4SLinus Torvalds }; 2451da177e4SLinus Torvalds 2467a8bb98cSMans Rullgard struct osf_statfs64 { 2477a8bb98cSMans Rullgard short f_type; 2487a8bb98cSMans Rullgard short f_flags; 2497a8bb98cSMans Rullgard int f_pad1; 2507a8bb98cSMans Rullgard int f_pad2; 2517a8bb98cSMans Rullgard int f_pad3; 2527a8bb98cSMans Rullgard int f_pad4; 2537a8bb98cSMans Rullgard int f_pad5; 2547a8bb98cSMans Rullgard int f_pad6; 2557a8bb98cSMans Rullgard int f_pad7; 2567a8bb98cSMans Rullgard __kernel_fsid_t f_fsid; 2577a8bb98cSMans Rullgard u_short f_namemax; 2587a8bb98cSMans Rullgard short f_reserved1; 2597a8bb98cSMans Rullgard int f_spare[8]; 2607a8bb98cSMans Rullgard char f_pad8[90]; 2617a8bb98cSMans Rullgard char f_pad9[90]; 2627a8bb98cSMans Rullgard long mount_info[10]; 2637a8bb98cSMans Rullgard u_long f_flags2; 2647a8bb98cSMans Rullgard long f_spare2[14]; 2657a8bb98cSMans Rullgard long f_fsize; 2667a8bb98cSMans Rullgard long f_bsize; 2677a8bb98cSMans Rullgard long f_blocks; 2687a8bb98cSMans Rullgard long f_bfree; 2697a8bb98cSMans Rullgard long f_bavail; 2707a8bb98cSMans Rullgard long f_files; 2717a8bb98cSMans Rullgard long f_ffree; 2727a8bb98cSMans Rullgard }; 2737a8bb98cSMans Rullgard 2747a8bb98cSMans Rullgard static int 2757a8bb98cSMans Rullgard linux_to_osf_stat(struct kstat *lstat, struct osf_stat __user *osf_stat) 2767a8bb98cSMans Rullgard { 2777a8bb98cSMans Rullgard struct osf_stat tmp = { 0 }; 2787a8bb98cSMans Rullgard 2797a8bb98cSMans Rullgard tmp.st_dev = lstat->dev; 2807a8bb98cSMans Rullgard tmp.st_mode = lstat->mode; 2817a8bb98cSMans Rullgard tmp.st_nlink = lstat->nlink; 282f31389d5SEric W. Biederman tmp.st_uid = from_kuid_munged(current_user_ns(), lstat->uid); 283f31389d5SEric W. Biederman tmp.st_gid = from_kgid_munged(current_user_ns(), lstat->gid); 2847a8bb98cSMans Rullgard tmp.st_rdev = lstat->rdev; 2857a8bb98cSMans Rullgard tmp.st_ldev = lstat->rdev; 2867a8bb98cSMans Rullgard tmp.st_size = lstat->size; 2877a8bb98cSMans Rullgard tmp.st_uatime = lstat->atime.tv_nsec / 1000; 2887a8bb98cSMans Rullgard tmp.st_umtime = lstat->mtime.tv_nsec / 1000; 2897a8bb98cSMans Rullgard tmp.st_uctime = lstat->ctime.tv_nsec / 1000; 2907a8bb98cSMans Rullgard tmp.st_ino = lstat->ino; 2917a8bb98cSMans Rullgard tmp.st_atime = lstat->atime.tv_sec; 2927a8bb98cSMans Rullgard tmp.st_mtime = lstat->mtime.tv_sec; 2937a8bb98cSMans Rullgard tmp.st_ctime = lstat->ctime.tv_sec; 2947a8bb98cSMans Rullgard tmp.st_blksize = lstat->blksize; 2957a8bb98cSMans Rullgard tmp.st_blocks = lstat->blocks; 2967a8bb98cSMans Rullgard 2977a8bb98cSMans Rullgard return copy_to_user(osf_stat, &tmp, sizeof(tmp)) ? -EFAULT : 0; 2987a8bb98cSMans Rullgard } 2997a8bb98cSMans Rullgard 3001da177e4SLinus Torvalds static int 3011da177e4SLinus Torvalds linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat, 3021da177e4SLinus Torvalds unsigned long bufsiz) 3031da177e4SLinus Torvalds { 3041da177e4SLinus Torvalds struct osf_statfs tmp_stat; 3051da177e4SLinus Torvalds 3061da177e4SLinus Torvalds tmp_stat.f_type = linux_stat->f_type; 3071da177e4SLinus Torvalds tmp_stat.f_flags = 0; /* mount flags */ 3081da177e4SLinus Torvalds tmp_stat.f_fsize = linux_stat->f_frsize; 3091da177e4SLinus Torvalds tmp_stat.f_bsize = linux_stat->f_bsize; 3101da177e4SLinus Torvalds tmp_stat.f_blocks = linux_stat->f_blocks; 3111da177e4SLinus Torvalds tmp_stat.f_bfree = linux_stat->f_bfree; 3121da177e4SLinus Torvalds tmp_stat.f_bavail = linux_stat->f_bavail; 3131da177e4SLinus Torvalds tmp_stat.f_files = linux_stat->f_files; 3141da177e4SLinus Torvalds tmp_stat.f_ffree = linux_stat->f_ffree; 3151da177e4SLinus Torvalds tmp_stat.f_fsid = linux_stat->f_fsid; 3161da177e4SLinus Torvalds if (bufsiz > sizeof(tmp_stat)) 3171da177e4SLinus Torvalds bufsiz = sizeof(tmp_stat); 3181da177e4SLinus Torvalds return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0; 3191da177e4SLinus Torvalds } 3201da177e4SLinus Torvalds 3217a8bb98cSMans Rullgard static int 3227a8bb98cSMans Rullgard linux_to_osf_statfs64(struct kstatfs *linux_stat, struct osf_statfs64 __user *osf_stat, 3237a8bb98cSMans Rullgard unsigned long bufsiz) 3247a8bb98cSMans Rullgard { 3257a8bb98cSMans Rullgard struct osf_statfs64 tmp_stat = { 0 }; 3267a8bb98cSMans Rullgard 3277a8bb98cSMans Rullgard tmp_stat.f_type = linux_stat->f_type; 3287a8bb98cSMans Rullgard tmp_stat.f_fsize = linux_stat->f_frsize; 3297a8bb98cSMans Rullgard tmp_stat.f_bsize = linux_stat->f_bsize; 3307a8bb98cSMans Rullgard tmp_stat.f_blocks = linux_stat->f_blocks; 3317a8bb98cSMans Rullgard tmp_stat.f_bfree = linux_stat->f_bfree; 3327a8bb98cSMans Rullgard tmp_stat.f_bavail = linux_stat->f_bavail; 3337a8bb98cSMans Rullgard tmp_stat.f_files = linux_stat->f_files; 3347a8bb98cSMans Rullgard tmp_stat.f_ffree = linux_stat->f_ffree; 3357a8bb98cSMans Rullgard tmp_stat.f_fsid = linux_stat->f_fsid; 3367a8bb98cSMans Rullgard if (bufsiz > sizeof(tmp_stat)) 3377a8bb98cSMans Rullgard bufsiz = sizeof(tmp_stat); 3387a8bb98cSMans Rullgard return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0; 3397a8bb98cSMans Rullgard } 3407a8bb98cSMans Rullgard 341c8b91accSAl Viro SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname, 342c8b91accSAl Viro struct osf_statfs __user *, buffer, unsigned long, bufsiz) 3431da177e4SLinus Torvalds { 3441da177e4SLinus Torvalds struct kstatfs linux_stat; 345c8b91accSAl Viro int error = user_statfs(pathname, &linux_stat); 3461da177e4SLinus Torvalds if (!error) 3471da177e4SLinus Torvalds error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz); 3481da177e4SLinus Torvalds return error; 3491da177e4SLinus Torvalds } 3501da177e4SLinus Torvalds 3517a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_stat, char __user *, name, struct osf_stat __user *, buf) 3527a8bb98cSMans Rullgard { 3537a8bb98cSMans Rullgard struct kstat stat; 3547a8bb98cSMans Rullgard int error; 3557a8bb98cSMans Rullgard 3567a8bb98cSMans Rullgard error = vfs_stat(name, &stat); 3577a8bb98cSMans Rullgard if (error) 3587a8bb98cSMans Rullgard return error; 3597a8bb98cSMans Rullgard 3607a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3617a8bb98cSMans Rullgard } 3627a8bb98cSMans Rullgard 3637a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_lstat, char __user *, name, struct osf_stat __user *, buf) 3647a8bb98cSMans Rullgard { 3657a8bb98cSMans Rullgard struct kstat stat; 3667a8bb98cSMans Rullgard int error; 3677a8bb98cSMans Rullgard 3687a8bb98cSMans Rullgard error = vfs_lstat(name, &stat); 3697a8bb98cSMans Rullgard if (error) 3707a8bb98cSMans Rullgard return error; 3717a8bb98cSMans Rullgard 3727a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3737a8bb98cSMans Rullgard } 3747a8bb98cSMans Rullgard 3757a8bb98cSMans Rullgard SYSCALL_DEFINE2(osf_fstat, int, fd, struct osf_stat __user *, buf) 3767a8bb98cSMans Rullgard { 3777a8bb98cSMans Rullgard struct kstat stat; 3787a8bb98cSMans Rullgard int error; 3797a8bb98cSMans Rullgard 3807a8bb98cSMans Rullgard error = vfs_fstat(fd, &stat); 3817a8bb98cSMans Rullgard if (error) 3827a8bb98cSMans Rullgard return error; 3837a8bb98cSMans Rullgard 3847a8bb98cSMans Rullgard return linux_to_osf_stat(&stat, buf); 3857a8bb98cSMans Rullgard } 3867a8bb98cSMans Rullgard 387e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd, 388e5d9a90cSIvan Kokshaysky struct osf_statfs __user *, buffer, unsigned long, bufsiz) 3891da177e4SLinus Torvalds { 390c8b91accSAl Viro struct kstatfs linux_stat; 391c8b91accSAl Viro int error = fd_statfs(fd, &linux_stat); 392c8b91accSAl Viro if (!error) 393c8b91accSAl Viro error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz); 394c8b91accSAl Viro return error; 3951da177e4SLinus Torvalds } 3961da177e4SLinus Torvalds 3977a8bb98cSMans Rullgard SYSCALL_DEFINE3(osf_statfs64, char __user *, pathname, 3987a8bb98cSMans Rullgard struct osf_statfs64 __user *, buffer, unsigned long, bufsiz) 3997a8bb98cSMans Rullgard { 4007a8bb98cSMans Rullgard struct kstatfs linux_stat; 4017a8bb98cSMans Rullgard int error = user_statfs(pathname, &linux_stat); 4027a8bb98cSMans Rullgard if (!error) 4037a8bb98cSMans Rullgard error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz); 4047a8bb98cSMans Rullgard return error; 4057a8bb98cSMans Rullgard } 4067a8bb98cSMans Rullgard 4077a8bb98cSMans Rullgard SYSCALL_DEFINE3(osf_fstatfs64, unsigned long, fd, 4087a8bb98cSMans Rullgard struct osf_statfs64 __user *, buffer, unsigned long, bufsiz) 4097a8bb98cSMans Rullgard { 4107a8bb98cSMans Rullgard struct kstatfs linux_stat; 4117a8bb98cSMans Rullgard int error = fd_statfs(fd, &linux_stat); 4127a8bb98cSMans Rullgard if (!error) 4137a8bb98cSMans Rullgard error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz); 4147a8bb98cSMans Rullgard return error; 4157a8bb98cSMans Rullgard } 4167a8bb98cSMans Rullgard 4171da177e4SLinus Torvalds /* 4181da177e4SLinus Torvalds * Uhh.. OSF/1 mount parameters aren't exactly obvious.. 4191da177e4SLinus Torvalds * 4201da177e4SLinus Torvalds * Although to be frank, neither are the native Linux/i386 ones.. 4211da177e4SLinus Torvalds */ 4221da177e4SLinus Torvalds struct ufs_args { 4231da177e4SLinus Torvalds char __user *devname; 4241da177e4SLinus Torvalds int flags; 4251da177e4SLinus Torvalds uid_t exroot; 4261da177e4SLinus Torvalds }; 4271da177e4SLinus Torvalds 4281da177e4SLinus Torvalds struct cdfs_args { 4291da177e4SLinus Torvalds char __user *devname; 4301da177e4SLinus Torvalds int flags; 4311da177e4SLinus Torvalds uid_t exroot; 4321da177e4SLinus Torvalds 4331da177e4SLinus Torvalds /* This has lots more here, which Linux handles with the option block 4341da177e4SLinus Torvalds but I'm too lazy to do the translation into ASCII. */ 4351da177e4SLinus Torvalds }; 4361da177e4SLinus Torvalds 4371da177e4SLinus Torvalds struct procfs_args { 4381da177e4SLinus Torvalds char __user *devname; 4391da177e4SLinus Torvalds int flags; 4401da177e4SLinus Torvalds uid_t exroot; 4411da177e4SLinus Torvalds }; 4421da177e4SLinus Torvalds 4431da177e4SLinus Torvalds /* 4441da177e4SLinus Torvalds * We can't actually handle ufs yet, so we translate UFS mounts to 4451da177e4SLinus Torvalds * ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS 4461da177e4SLinus Torvalds * layout is so braindead it's a major headache doing it. 4471da177e4SLinus Torvalds * 4481da177e4SLinus Torvalds * Just how long ago was it written? OTOH our UFS driver may be still 4491da177e4SLinus Torvalds * unhappy with OSF UFS. [CHECKME] 4501da177e4SLinus Torvalds */ 4511da177e4SLinus Torvalds static int 4525e6123f3SSeunghun Lee osf_ufs_mount(const char __user *dirname, 4535e6123f3SSeunghun Lee struct ufs_args __user *args, int flags) 4541da177e4SLinus Torvalds { 4551da177e4SLinus Torvalds int retval; 4561da177e4SLinus Torvalds struct cdfs_args tmp; 45791a27b2aSJeff Layton struct filename *devname; 4581da177e4SLinus Torvalds 4591da177e4SLinus Torvalds retval = -EFAULT; 4601da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 4611da177e4SLinus Torvalds goto out; 4621da177e4SLinus Torvalds devname = getname(tmp.devname); 4631da177e4SLinus Torvalds retval = PTR_ERR(devname); 4641da177e4SLinus Torvalds if (IS_ERR(devname)) 4651da177e4SLinus Torvalds goto out; 46691a27b2aSJeff Layton retval = do_mount(devname->name, dirname, "ext2", flags, NULL); 4671da177e4SLinus Torvalds putname(devname); 4681da177e4SLinus Torvalds out: 4691da177e4SLinus Torvalds return retval; 4701da177e4SLinus Torvalds } 4711da177e4SLinus Torvalds 4721da177e4SLinus Torvalds static int 4735e6123f3SSeunghun Lee osf_cdfs_mount(const char __user *dirname, 4745e6123f3SSeunghun Lee struct cdfs_args __user *args, int flags) 4751da177e4SLinus Torvalds { 4761da177e4SLinus Torvalds int retval; 4771da177e4SLinus Torvalds struct cdfs_args tmp; 47891a27b2aSJeff Layton struct filename *devname; 4791da177e4SLinus Torvalds 4801da177e4SLinus Torvalds retval = -EFAULT; 4811da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 4821da177e4SLinus Torvalds goto out; 4831da177e4SLinus Torvalds devname = getname(tmp.devname); 4841da177e4SLinus Torvalds retval = PTR_ERR(devname); 4851da177e4SLinus Torvalds if (IS_ERR(devname)) 4861da177e4SLinus Torvalds goto out; 48791a27b2aSJeff Layton retval = do_mount(devname->name, dirname, "iso9660", flags, NULL); 4881da177e4SLinus Torvalds putname(devname); 4891da177e4SLinus Torvalds out: 4901da177e4SLinus Torvalds return retval; 4911da177e4SLinus Torvalds } 4921da177e4SLinus Torvalds 4931da177e4SLinus Torvalds static int 4945e6123f3SSeunghun Lee osf_procfs_mount(const char __user *dirname, 4955e6123f3SSeunghun Lee struct procfs_args __user *args, int flags) 4961da177e4SLinus Torvalds { 4971da177e4SLinus Torvalds struct procfs_args tmp; 4981da177e4SLinus Torvalds 4991da177e4SLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 5001da177e4SLinus Torvalds return -EFAULT; 5011da177e4SLinus Torvalds 5021da177e4SLinus Torvalds return do_mount("", dirname, "proc", flags, NULL); 5031da177e4SLinus Torvalds } 5041da177e4SLinus Torvalds 505c7887325SDavid Howells SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path, 506e5d9a90cSIvan Kokshaysky int, flag, void __user *, data) 5071da177e4SLinus Torvalds { 50877079dbeSRoel Kluin int retval; 5091da177e4SLinus Torvalds 5101da177e4SLinus Torvalds switch (typenr) { 5111da177e4SLinus Torvalds case 1: 5125e6123f3SSeunghun Lee retval = osf_ufs_mount(path, data, flag); 5131da177e4SLinus Torvalds break; 5141da177e4SLinus Torvalds case 6: 5155e6123f3SSeunghun Lee retval = osf_cdfs_mount(path, data, flag); 5161da177e4SLinus Torvalds break; 5171da177e4SLinus Torvalds case 9: 5185e6123f3SSeunghun Lee retval = osf_procfs_mount(path, data, flag); 5191da177e4SLinus Torvalds break; 5201da177e4SLinus Torvalds default: 52177079dbeSRoel Kluin retval = -EINVAL; 5221da177e4SLinus Torvalds printk("osf_mount(%ld, %x)\n", typenr, flag); 5231da177e4SLinus Torvalds } 5245e6123f3SSeunghun Lee 5251da177e4SLinus Torvalds return retval; 5261da177e4SLinus Torvalds } 5271da177e4SLinus Torvalds 528e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(osf_utsname, char __user *, name) 5291da177e4SLinus Torvalds { 5301da177e4SLinus Torvalds int error; 5311da177e4SLinus Torvalds 5321da177e4SLinus Torvalds down_read(&uts_sem); 5331da177e4SLinus Torvalds error = -EFAULT; 534e9ff3990SSerge E. Hallyn if (copy_to_user(name + 0, utsname()->sysname, 32)) 5351da177e4SLinus Torvalds goto out; 536e9ff3990SSerge E. Hallyn if (copy_to_user(name + 32, utsname()->nodename, 32)) 5371da177e4SLinus Torvalds goto out; 538e9ff3990SSerge E. Hallyn if (copy_to_user(name + 64, utsname()->release, 32)) 5391da177e4SLinus Torvalds goto out; 540e9ff3990SSerge E. Hallyn if (copy_to_user(name + 96, utsname()->version, 32)) 5411da177e4SLinus Torvalds goto out; 542e9ff3990SSerge E. Hallyn if (copy_to_user(name + 128, utsname()->machine, 32)) 5431da177e4SLinus Torvalds goto out; 5441da177e4SLinus Torvalds 5451da177e4SLinus Torvalds error = 0; 5461da177e4SLinus Torvalds out: 5471da177e4SLinus Torvalds up_read(&uts_sem); 5481da177e4SLinus Torvalds return error; 5491da177e4SLinus Torvalds } 5501da177e4SLinus Torvalds 551e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE0(getpagesize) 5521da177e4SLinus Torvalds { 5531da177e4SLinus Torvalds return PAGE_SIZE; 5541da177e4SLinus Torvalds } 5551da177e4SLinus Torvalds 556e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE0(getdtablesize) 5571da177e4SLinus Torvalds { 5589cfe015aSEric Dumazet return sysctl_nr_open; 5591da177e4SLinus Torvalds } 5601da177e4SLinus Torvalds 5611da177e4SLinus Torvalds /* 5621da177e4SLinus Torvalds * For compatibility with OSF/1 only. Use utsname(2) instead. 5631da177e4SLinus Torvalds */ 564e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen) 5651da177e4SLinus Torvalds { 5661da177e4SLinus Torvalds unsigned len; 5671da177e4SLinus Torvalds int i; 5681da177e4SLinus Torvalds 5691da177e4SLinus Torvalds if (!access_ok(VERIFY_WRITE, name, namelen)) 5701da177e4SLinus Torvalds return -EFAULT; 5711da177e4SLinus Torvalds 5721da177e4SLinus Torvalds len = namelen; 57321c5977aSDan Rosenberg if (len > 32) 5741da177e4SLinus Torvalds len = 32; 5751da177e4SLinus Torvalds 5761da177e4SLinus Torvalds down_read(&uts_sem); 5771da177e4SLinus Torvalds for (i = 0; i < len; ++i) { 578e9ff3990SSerge E. Hallyn __put_user(utsname()->domainname[i], name + i); 579e9ff3990SSerge E. Hallyn if (utsname()->domainname[i] == '\0') 5801da177e4SLinus Torvalds break; 5811da177e4SLinus Torvalds } 5821da177e4SLinus Torvalds up_read(&uts_sem); 5831da177e4SLinus Torvalds 5841da177e4SLinus Torvalds return 0; 5851da177e4SLinus Torvalds } 5861da177e4SLinus Torvalds 5871da177e4SLinus Torvalds /* 5881da177e4SLinus Torvalds * The following stuff should move into a header file should it ever 5891da177e4SLinus Torvalds * be labeled "officially supported." Right now, there is just enough 5901da177e4SLinus Torvalds * support to avoid applications (such as tar) printing error 5911da177e4SLinus Torvalds * messages. The attributes are not really implemented. 5921da177e4SLinus Torvalds */ 5931da177e4SLinus Torvalds 5941da177e4SLinus Torvalds /* 5951da177e4SLinus Torvalds * Values for Property list entry flag 5961da177e4SLinus Torvalds */ 5971da177e4SLinus Torvalds #define PLE_PROPAGATE_ON_COPY 0x1 /* cp(1) will copy entry 5981da177e4SLinus Torvalds by default */ 5991da177e4SLinus Torvalds #define PLE_FLAG_MASK 0x1 /* Valid flag values */ 6001da177e4SLinus Torvalds #define PLE_FLAG_ALL -1 /* All flag value */ 6011da177e4SLinus Torvalds 6021da177e4SLinus Torvalds struct proplistname_args { 6031da177e4SLinus Torvalds unsigned int pl_mask; 6041da177e4SLinus Torvalds unsigned int pl_numnames; 6051da177e4SLinus Torvalds char **pl_names; 6061da177e4SLinus Torvalds }; 6071da177e4SLinus Torvalds 6081da177e4SLinus Torvalds union pl_args { 6091da177e4SLinus Torvalds struct setargs { 6101da177e4SLinus Torvalds char __user *path; 6111da177e4SLinus Torvalds long follow; 6121da177e4SLinus Torvalds long nbytes; 6131da177e4SLinus Torvalds char __user *buf; 6141da177e4SLinus Torvalds } set; 6151da177e4SLinus Torvalds struct fsetargs { 6161da177e4SLinus Torvalds long fd; 6171da177e4SLinus Torvalds long nbytes; 6181da177e4SLinus Torvalds char __user *buf; 6191da177e4SLinus Torvalds } fset; 6201da177e4SLinus Torvalds struct getargs { 6211da177e4SLinus Torvalds char __user *path; 6221da177e4SLinus Torvalds long follow; 6231da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6241da177e4SLinus Torvalds long nbytes; 6251da177e4SLinus Torvalds char __user *buf; 6261da177e4SLinus Torvalds int __user *min_buf_size; 6271da177e4SLinus Torvalds } get; 6281da177e4SLinus Torvalds struct fgetargs { 6291da177e4SLinus Torvalds long fd; 6301da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6311da177e4SLinus Torvalds long nbytes; 6321da177e4SLinus Torvalds char __user *buf; 6331da177e4SLinus Torvalds int __user *min_buf_size; 6341da177e4SLinus Torvalds } fget; 6351da177e4SLinus Torvalds struct delargs { 6361da177e4SLinus Torvalds char __user *path; 6371da177e4SLinus Torvalds long follow; 6381da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6391da177e4SLinus Torvalds } del; 6401da177e4SLinus Torvalds struct fdelargs { 6411da177e4SLinus Torvalds long fd; 6421da177e4SLinus Torvalds struct proplistname_args __user *name_args; 6431da177e4SLinus Torvalds } fdel; 6441da177e4SLinus Torvalds }; 6451da177e4SLinus Torvalds 6461da177e4SLinus Torvalds enum pl_code { 6471da177e4SLinus Torvalds PL_SET = 1, PL_FSET = 2, 6481da177e4SLinus Torvalds PL_GET = 3, PL_FGET = 4, 6491da177e4SLinus Torvalds PL_DEL = 5, PL_FDEL = 6 6501da177e4SLinus Torvalds }; 6511da177e4SLinus Torvalds 652e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code, 653e5d9a90cSIvan Kokshaysky union pl_args __user *, args) 6541da177e4SLinus Torvalds { 6551da177e4SLinus Torvalds long error; 6561da177e4SLinus Torvalds int __user *min_buf_size_ptr; 6571da177e4SLinus Torvalds 6581da177e4SLinus Torvalds switch (code) { 6591da177e4SLinus Torvalds case PL_SET: 6601da177e4SLinus Torvalds if (get_user(error, &args->set.nbytes)) 6611da177e4SLinus Torvalds error = -EFAULT; 6621da177e4SLinus Torvalds break; 6631da177e4SLinus Torvalds case PL_FSET: 6641da177e4SLinus Torvalds if (get_user(error, &args->fset.nbytes)) 6651da177e4SLinus Torvalds error = -EFAULT; 6661da177e4SLinus Torvalds break; 6671da177e4SLinus Torvalds case PL_GET: 6681da177e4SLinus Torvalds error = get_user(min_buf_size_ptr, &args->get.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_FGET: 6741da177e4SLinus Torvalds error = get_user(min_buf_size_ptr, &args->fget.min_buf_size); 6751da177e4SLinus Torvalds if (error) 6761da177e4SLinus Torvalds break; 6771da177e4SLinus Torvalds error = put_user(0, min_buf_size_ptr); 6781da177e4SLinus Torvalds break; 6791da177e4SLinus Torvalds case PL_DEL: 6801da177e4SLinus Torvalds case PL_FDEL: 6811da177e4SLinus Torvalds error = 0; 6821da177e4SLinus Torvalds break; 6831da177e4SLinus Torvalds default: 6841da177e4SLinus Torvalds error = -EOPNOTSUPP; 6851da177e4SLinus Torvalds break; 6861da177e4SLinus Torvalds }; 6871da177e4SLinus Torvalds return error; 6881da177e4SLinus Torvalds } 6891da177e4SLinus Torvalds 690e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss, 691e5d9a90cSIvan Kokshaysky struct sigstack __user *, uoss) 6921da177e4SLinus Torvalds { 6931da177e4SLinus Torvalds unsigned long usp = rdusp(); 6941da177e4SLinus Torvalds unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size; 6951da177e4SLinus Torvalds unsigned long oss_os = on_sig_stack(usp); 6961da177e4SLinus Torvalds int error; 6971da177e4SLinus Torvalds 6981da177e4SLinus Torvalds if (uss) { 6991da177e4SLinus Torvalds void __user *ss_sp; 7001da177e4SLinus Torvalds 7011da177e4SLinus Torvalds error = -EFAULT; 7021da177e4SLinus Torvalds if (get_user(ss_sp, &uss->ss_sp)) 7031da177e4SLinus Torvalds goto out; 7041da177e4SLinus Torvalds 7051da177e4SLinus Torvalds /* If the current stack was set with sigaltstack, don't 7061da177e4SLinus Torvalds swap stacks while we are on it. */ 7071da177e4SLinus Torvalds error = -EPERM; 7081da177e4SLinus Torvalds if (current->sas_ss_sp && on_sig_stack(usp)) 7091da177e4SLinus Torvalds goto out; 7101da177e4SLinus Torvalds 7111da177e4SLinus Torvalds /* Since we don't know the extent of the stack, and we don't 7121da177e4SLinus Torvalds track onstack-ness, but rather calculate it, we must 7131da177e4SLinus Torvalds presume a size. Ho hum this interface is lossy. */ 7141da177e4SLinus Torvalds current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ; 7151da177e4SLinus Torvalds current->sas_ss_size = SIGSTKSZ; 7161da177e4SLinus Torvalds } 7171da177e4SLinus Torvalds 7181da177e4SLinus Torvalds if (uoss) { 7191da177e4SLinus Torvalds error = -EFAULT; 7201da177e4SLinus Torvalds if (! access_ok(VERIFY_WRITE, uoss, sizeof(*uoss)) 7211da177e4SLinus Torvalds || __put_user(oss_sp, &uoss->ss_sp) 7221da177e4SLinus Torvalds || __put_user(oss_os, &uoss->ss_onstack)) 7231da177e4SLinus Torvalds goto out; 7241da177e4SLinus Torvalds } 7251da177e4SLinus Torvalds 7261da177e4SLinus Torvalds error = 0; 7271da177e4SLinus Torvalds out: 7281da177e4SLinus Torvalds return error; 7291da177e4SLinus Torvalds } 7301da177e4SLinus Torvalds 731e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count) 7321da177e4SLinus Torvalds { 73331019075SJoe Perches const char *sysinfo_table[] = { 734e9ff3990SSerge E. Hallyn utsname()->sysname, 735e9ff3990SSerge E. Hallyn utsname()->nodename, 736e9ff3990SSerge E. Hallyn utsname()->release, 737e9ff3990SSerge E. Hallyn utsname()->version, 738e9ff3990SSerge E. Hallyn utsname()->machine, 7391da177e4SLinus Torvalds "alpha", /* instruction set architecture */ 7401da177e4SLinus Torvalds "dummy", /* hardware serial number */ 7411da177e4SLinus Torvalds "dummy", /* hardware manufacturer */ 7421da177e4SLinus Torvalds "dummy", /* secure RPC domain */ 7431da177e4SLinus Torvalds }; 7441da177e4SLinus Torvalds unsigned long offset; 74531019075SJoe Perches const char *res; 7461da177e4SLinus Torvalds long len, err = -EINVAL; 7471da177e4SLinus Torvalds 7481da177e4SLinus Torvalds offset = command-1; 74925c8716cSTobias Klauser if (offset >= ARRAY_SIZE(sysinfo_table)) { 7501da177e4SLinus Torvalds /* Digital UNIX has a few unpublished interfaces here */ 7511da177e4SLinus Torvalds printk("sysinfo(%d)", command); 7521da177e4SLinus Torvalds goto out; 7531da177e4SLinus Torvalds } 7541da177e4SLinus Torvalds 7551da177e4SLinus Torvalds down_read(&uts_sem); 7561da177e4SLinus Torvalds res = sysinfo_table[offset]; 7571da177e4SLinus Torvalds len = strlen(res)+1; 75821c5977aSDan Rosenberg if ((unsigned long)len > (unsigned long)count) 7591da177e4SLinus Torvalds len = count; 7601da177e4SLinus Torvalds if (copy_to_user(buf, res, len)) 7611da177e4SLinus Torvalds err = -EFAULT; 7621da177e4SLinus Torvalds else 7631da177e4SLinus Torvalds err = 0; 7641da177e4SLinus Torvalds up_read(&uts_sem); 7651da177e4SLinus Torvalds out: 7661da177e4SLinus Torvalds return err; 7671da177e4SLinus Torvalds } 7681da177e4SLinus Torvalds 769e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer, 770e5d9a90cSIvan Kokshaysky unsigned long, nbytes, int __user *, start, void __user *, arg) 7711da177e4SLinus Torvalds { 7721da177e4SLinus Torvalds unsigned long w; 7731da177e4SLinus Torvalds struct percpu_struct *cpu; 7741da177e4SLinus Torvalds 7751da177e4SLinus Torvalds switch (op) { 7761da177e4SLinus Torvalds case GSI_IEEE_FP_CONTROL: 7771da177e4SLinus Torvalds /* Return current software fp control & status bits. */ 7781da177e4SLinus Torvalds /* Note that DU doesn't verify available space here. */ 7791da177e4SLinus Torvalds 7801da177e4SLinus Torvalds w = current_thread_info()->ieee_state & IEEE_SW_MASK; 7811da177e4SLinus Torvalds w = swcr_update_status(w, rdfpcr()); 7821da177e4SLinus Torvalds if (put_user(w, (unsigned long __user *) buffer)) 7831da177e4SLinus Torvalds return -EFAULT; 7841da177e4SLinus Torvalds return 0; 7851da177e4SLinus Torvalds 7861da177e4SLinus Torvalds case GSI_IEEE_STATE_AT_SIGNAL: 7871da177e4SLinus Torvalds /* 7881da177e4SLinus Torvalds * Not sure anybody will ever use this weird stuff. These 7891da177e4SLinus Torvalds * ops can be used (under OSF/1) to set the fpcr that should 7901da177e4SLinus Torvalds * be used when a signal handler starts executing. 7911da177e4SLinus Torvalds */ 7921da177e4SLinus Torvalds break; 7931da177e4SLinus Torvalds 7941da177e4SLinus Torvalds case GSI_UACPROC: 7951da177e4SLinus Torvalds if (nbytes < sizeof(unsigned int)) 7961da177e4SLinus Torvalds return -EINVAL; 7973185bd26SAl Viro w = current_thread_info()->status & UAC_BITMASK; 7981da177e4SLinus Torvalds if (put_user(w, (unsigned int __user *)buffer)) 7991da177e4SLinus Torvalds return -EFAULT; 8001da177e4SLinus Torvalds return 1; 8011da177e4SLinus Torvalds 8021da177e4SLinus Torvalds case GSI_PROC_TYPE: 8031da177e4SLinus Torvalds if (nbytes < sizeof(unsigned long)) 8041da177e4SLinus Torvalds return -EINVAL; 8051da177e4SLinus Torvalds cpu = (struct percpu_struct*) 8061da177e4SLinus Torvalds ((char*)hwrpb + hwrpb->processor_offset); 8071da177e4SLinus Torvalds w = cpu->type; 8081da177e4SLinus Torvalds if (put_user(w, (unsigned long __user*)buffer)) 8091da177e4SLinus Torvalds return -EFAULT; 8101da177e4SLinus Torvalds return 1; 8111da177e4SLinus Torvalds 8121da177e4SLinus Torvalds case GSI_GET_HWRPB: 81321c5977aSDan Rosenberg if (nbytes > sizeof(*hwrpb)) 8141da177e4SLinus Torvalds return -EINVAL; 8151da177e4SLinus Torvalds if (copy_to_user(buffer, hwrpb, nbytes) != 0) 8161da177e4SLinus Torvalds return -EFAULT; 8171da177e4SLinus Torvalds return 1; 8181da177e4SLinus Torvalds 8191da177e4SLinus Torvalds default: 8201da177e4SLinus Torvalds break; 8211da177e4SLinus Torvalds } 8221da177e4SLinus Torvalds 8231da177e4SLinus Torvalds return -EOPNOTSUPP; 8241da177e4SLinus Torvalds } 8251da177e4SLinus Torvalds 826e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer, 827e5d9a90cSIvan Kokshaysky unsigned long, nbytes, int __user *, start, void __user *, arg) 8281da177e4SLinus Torvalds { 8291da177e4SLinus Torvalds switch (op) { 8301da177e4SLinus Torvalds case SSI_IEEE_FP_CONTROL: { 8311da177e4SLinus Torvalds unsigned long swcr, fpcr; 8321da177e4SLinus Torvalds unsigned int *state; 8331da177e4SLinus Torvalds 8341da177e4SLinus Torvalds /* 8351da177e4SLinus Torvalds * Alpha Architecture Handbook 4.7.7.3: 8361da177e4SLinus Torvalds * To be fully IEEE compiant, we must track the current IEEE 837c3a2ddeeSSimon Arlott * exception state in software, because spurious bits can be 8381da177e4SLinus Torvalds * set in the trap shadow of a software-complete insn. 8391da177e4SLinus Torvalds */ 8401da177e4SLinus Torvalds 8411da177e4SLinus Torvalds if (get_user(swcr, (unsigned long __user *)buffer)) 8421da177e4SLinus Torvalds return -EFAULT; 8431da177e4SLinus Torvalds state = ¤t_thread_info()->ieee_state; 8441da177e4SLinus Torvalds 8451da177e4SLinus Torvalds /* Update softare trap enable bits. */ 8461da177e4SLinus Torvalds *state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK); 8471da177e4SLinus Torvalds 8481da177e4SLinus Torvalds /* Update the real fpcr. */ 8491da177e4SLinus Torvalds fpcr = rdfpcr() & FPCR_DYN_MASK; 8501da177e4SLinus Torvalds fpcr |= ieee_swcr_to_fpcr(swcr); 8511da177e4SLinus Torvalds wrfpcr(fpcr); 8521da177e4SLinus Torvalds 8531da177e4SLinus Torvalds return 0; 8541da177e4SLinus Torvalds } 8551da177e4SLinus Torvalds 8561da177e4SLinus Torvalds case SSI_IEEE_RAISE_EXCEPTION: { 8571da177e4SLinus Torvalds unsigned long exc, swcr, fpcr, fex; 8581da177e4SLinus Torvalds unsigned int *state; 8591da177e4SLinus Torvalds 8601da177e4SLinus Torvalds if (get_user(exc, (unsigned long __user *)buffer)) 8611da177e4SLinus Torvalds return -EFAULT; 8621da177e4SLinus Torvalds state = ¤t_thread_info()->ieee_state; 8631da177e4SLinus Torvalds exc &= IEEE_STATUS_MASK; 8641da177e4SLinus Torvalds 8651da177e4SLinus Torvalds /* Update softare trap enable bits. */ 8661da177e4SLinus Torvalds swcr = (*state & IEEE_SW_MASK) | exc; 8671da177e4SLinus Torvalds *state |= exc; 8681da177e4SLinus Torvalds 8691da177e4SLinus Torvalds /* Update the real fpcr. */ 8701da177e4SLinus Torvalds fpcr = rdfpcr(); 8711da177e4SLinus Torvalds fpcr |= ieee_swcr_to_fpcr(swcr); 8721da177e4SLinus Torvalds wrfpcr(fpcr); 8731da177e4SLinus Torvalds 8741da177e4SLinus Torvalds /* If any exceptions set by this call, and are unmasked, 8751da177e4SLinus Torvalds send a signal. Old exceptions are not signaled. */ 8761da177e4SLinus Torvalds fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr; 8771da177e4SLinus Torvalds if (fex) { 8781da177e4SLinus Torvalds siginfo_t info; 8791da177e4SLinus Torvalds int si_code = 0; 8801da177e4SLinus Torvalds 8811da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND; 8821da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES; 8831da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND; 8841da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF; 8851da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV; 8861da177e4SLinus Torvalds if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV; 8871da177e4SLinus Torvalds 8881da177e4SLinus Torvalds info.si_signo = SIGFPE; 8891da177e4SLinus Torvalds info.si_errno = 0; 8901da177e4SLinus Torvalds info.si_code = si_code; 8911da177e4SLinus Torvalds info.si_addr = NULL; /* FIXME */ 8921da177e4SLinus Torvalds send_sig_info(SIGFPE, &info, current); 8931da177e4SLinus Torvalds } 8941da177e4SLinus Torvalds return 0; 8951da177e4SLinus Torvalds } 8961da177e4SLinus Torvalds 8971da177e4SLinus Torvalds case SSI_IEEE_STATE_AT_SIGNAL: 8981da177e4SLinus Torvalds case SSI_IEEE_IGNORE_STATE_AT_SIGNAL: 8991da177e4SLinus Torvalds /* 9001da177e4SLinus Torvalds * Not sure anybody will ever use this weird stuff. These 9011da177e4SLinus Torvalds * ops can be used (under OSF/1) to set the fpcr that should 9021da177e4SLinus Torvalds * be used when a signal handler starts executing. 9031da177e4SLinus Torvalds */ 9041da177e4SLinus Torvalds break; 9051da177e4SLinus Torvalds 9061da177e4SLinus Torvalds case SSI_NVPAIRS: { 9073185bd26SAl Viro unsigned __user *p = buffer; 9083185bd26SAl Viro unsigned i; 9091da177e4SLinus Torvalds 9103185bd26SAl Viro for (i = 0, p = buffer; i < nbytes; ++i, p += 2) { 9113185bd26SAl Viro unsigned v, w, status; 9121da177e4SLinus Torvalds 9133185bd26SAl Viro if (get_user(v, p) || get_user(w, p + 1)) 9141da177e4SLinus Torvalds return -EFAULT; 9151da177e4SLinus Torvalds switch (v) { 9161da177e4SLinus Torvalds case SSIN_UACPROC: 9173185bd26SAl Viro w &= UAC_BITMASK; 9183185bd26SAl Viro status = current_thread_info()->status; 9193185bd26SAl Viro status = (status & ~UAC_BITMASK) | w; 9203185bd26SAl Viro current_thread_info()->status = status; 9211da177e4SLinus Torvalds break; 9221da177e4SLinus Torvalds 9231da177e4SLinus Torvalds default: 9241da177e4SLinus Torvalds return -EOPNOTSUPP; 9251da177e4SLinus Torvalds } 9261da177e4SLinus Torvalds } 9271da177e4SLinus Torvalds return 0; 9281da177e4SLinus Torvalds } 9291da177e4SLinus Torvalds 93050744deeSMans Rullgard case SSI_LMF: 93150744deeSMans Rullgard return 0; 93250744deeSMans Rullgard 9331da177e4SLinus Torvalds default: 9341da177e4SLinus Torvalds break; 9351da177e4SLinus Torvalds } 9361da177e4SLinus Torvalds 9371da177e4SLinus Torvalds return -EOPNOTSUPP; 9381da177e4SLinus Torvalds } 9391da177e4SLinus Torvalds 9401da177e4SLinus Torvalds /* Translations due to the fact that OSF's time_t is an int. Which 9411da177e4SLinus Torvalds affects all sorts of things, like timeval and itimerval. */ 9421da177e4SLinus Torvalds 9431da177e4SLinus Torvalds extern struct timezone sys_tz; 9441da177e4SLinus Torvalds 9451da177e4SLinus Torvalds struct timeval32 9461da177e4SLinus Torvalds { 9471da177e4SLinus Torvalds int tv_sec, tv_usec; 9481da177e4SLinus Torvalds }; 9491da177e4SLinus Torvalds 9501da177e4SLinus Torvalds struct itimerval32 9511da177e4SLinus Torvalds { 9521da177e4SLinus Torvalds struct timeval32 it_interval; 9531da177e4SLinus Torvalds struct timeval32 it_value; 9541da177e4SLinus Torvalds }; 9551da177e4SLinus Torvalds 9561da177e4SLinus Torvalds static inline long 9571da177e4SLinus Torvalds get_tv32(struct timeval *o, struct timeval32 __user *i) 9581da177e4SLinus Torvalds { 9591da177e4SLinus Torvalds return (!access_ok(VERIFY_READ, i, sizeof(*i)) || 9601da177e4SLinus Torvalds (__get_user(o->tv_sec, &i->tv_sec) | 9611da177e4SLinus Torvalds __get_user(o->tv_usec, &i->tv_usec))); 9621da177e4SLinus Torvalds } 9631da177e4SLinus Torvalds 9641da177e4SLinus Torvalds static inline long 9651da177e4SLinus Torvalds put_tv32(struct timeval32 __user *o, struct timeval *i) 9661da177e4SLinus Torvalds { 9671da177e4SLinus Torvalds return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || 9681da177e4SLinus Torvalds (__put_user(i->tv_sec, &o->tv_sec) | 9691da177e4SLinus Torvalds __put_user(i->tv_usec, &o->tv_usec))); 9701da177e4SLinus Torvalds } 9711da177e4SLinus Torvalds 9721da177e4SLinus Torvalds static inline long 9731da177e4SLinus Torvalds get_it32(struct itimerval *o, struct itimerval32 __user *i) 9741da177e4SLinus Torvalds { 9751da177e4SLinus Torvalds return (!access_ok(VERIFY_READ, i, sizeof(*i)) || 9761da177e4SLinus Torvalds (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) | 9771da177e4SLinus Torvalds __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) | 9781da177e4SLinus Torvalds __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) | 9791da177e4SLinus Torvalds __get_user(o->it_value.tv_usec, &i->it_value.tv_usec))); 9801da177e4SLinus Torvalds } 9811da177e4SLinus Torvalds 9821da177e4SLinus Torvalds static inline long 9831da177e4SLinus Torvalds put_it32(struct itimerval32 __user *o, struct itimerval *i) 9841da177e4SLinus Torvalds { 9851da177e4SLinus Torvalds return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || 9861da177e4SLinus Torvalds (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) | 9871da177e4SLinus Torvalds __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) | 9881da177e4SLinus Torvalds __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) | 9891da177e4SLinus Torvalds __put_user(i->it_value.tv_usec, &o->it_value.tv_usec))); 9901da177e4SLinus Torvalds } 9911da177e4SLinus Torvalds 9921da177e4SLinus Torvalds static inline void 9931da177e4SLinus Torvalds jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value) 9941da177e4SLinus Torvalds { 9951da177e4SLinus Torvalds value->tv_usec = (jiffies % HZ) * (1000000L / HZ); 9961da177e4SLinus Torvalds value->tv_sec = jiffies / HZ; 9971da177e4SLinus Torvalds } 9981da177e4SLinus Torvalds 999e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv, 1000e5d9a90cSIvan Kokshaysky struct timezone __user *, tz) 10011da177e4SLinus Torvalds { 10021da177e4SLinus Torvalds if (tv) { 10031da177e4SLinus Torvalds struct timeval ktv; 10041da177e4SLinus Torvalds do_gettimeofday(&ktv); 10051da177e4SLinus Torvalds if (put_tv32(tv, &ktv)) 10061da177e4SLinus Torvalds return -EFAULT; 10071da177e4SLinus Torvalds } 10081da177e4SLinus Torvalds if (tz) { 10091da177e4SLinus Torvalds if (copy_to_user(tz, &sys_tz, sizeof(sys_tz))) 10101da177e4SLinus Torvalds return -EFAULT; 10111da177e4SLinus Torvalds } 10121da177e4SLinus Torvalds return 0; 10131da177e4SLinus Torvalds } 10141da177e4SLinus Torvalds 1015e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv, 1016e5d9a90cSIvan Kokshaysky struct timezone __user *, tz) 10171da177e4SLinus Torvalds { 10181da177e4SLinus Torvalds struct timespec kts; 10191da177e4SLinus Torvalds struct timezone ktz; 10201da177e4SLinus Torvalds 10211da177e4SLinus Torvalds if (tv) { 10221da177e4SLinus Torvalds if (get_tv32((struct timeval *)&kts, tv)) 10231da177e4SLinus Torvalds return -EFAULT; 1024cceaeddcSChen Gang kts.tv_nsec *= 1000; 10251da177e4SLinus Torvalds } 10261da177e4SLinus Torvalds if (tz) { 10271da177e4SLinus Torvalds if (copy_from_user(&ktz, tz, sizeof(*tz))) 10281da177e4SLinus Torvalds return -EFAULT; 10291da177e4SLinus Torvalds } 10301da177e4SLinus Torvalds 10311da177e4SLinus Torvalds return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL); 10321da177e4SLinus Torvalds } 10331da177e4SLinus Torvalds 1034baa73d9eSNicolas Pitre asmlinkage long sys_ni_posix_timers(void); 1035baa73d9eSNicolas Pitre 1036e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_getitimer, int, which, struct itimerval32 __user *, it) 10371da177e4SLinus Torvalds { 10381da177e4SLinus Torvalds struct itimerval kit; 10391da177e4SLinus Torvalds int error; 10401da177e4SLinus Torvalds 1041baa73d9eSNicolas Pitre if (!IS_ENABLED(CONFIG_POSIX_TIMERS)) 1042baa73d9eSNicolas Pitre return sys_ni_posix_timers(); 1043baa73d9eSNicolas Pitre 10441da177e4SLinus Torvalds error = do_getitimer(which, &kit); 10451da177e4SLinus Torvalds if (!error && put_it32(it, &kit)) 10461da177e4SLinus Torvalds error = -EFAULT; 10471da177e4SLinus Torvalds 10481da177e4SLinus Torvalds return error; 10491da177e4SLinus Torvalds } 10501da177e4SLinus Torvalds 1051e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_setitimer, int, which, struct itimerval32 __user *, in, 1052e5d9a90cSIvan Kokshaysky struct itimerval32 __user *, out) 10531da177e4SLinus Torvalds { 10541da177e4SLinus Torvalds struct itimerval kin, kout; 10551da177e4SLinus Torvalds int error; 10561da177e4SLinus Torvalds 1057baa73d9eSNicolas Pitre if (!IS_ENABLED(CONFIG_POSIX_TIMERS)) 1058baa73d9eSNicolas Pitre return sys_ni_posix_timers(); 1059baa73d9eSNicolas Pitre 10601da177e4SLinus Torvalds if (in) { 10611da177e4SLinus Torvalds if (get_it32(&kin, in)) 10621da177e4SLinus Torvalds return -EFAULT; 10631da177e4SLinus Torvalds } else 10641da177e4SLinus Torvalds memset(&kin, 0, sizeof(kin)); 10651da177e4SLinus Torvalds 10661da177e4SLinus Torvalds error = do_setitimer(which, &kin, out ? &kout : NULL); 10671da177e4SLinus Torvalds if (error || !out) 10681da177e4SLinus Torvalds return error; 10691da177e4SLinus Torvalds 10701da177e4SLinus Torvalds if (put_it32(out, &kout)) 10711da177e4SLinus Torvalds return -EFAULT; 10721da177e4SLinus Torvalds 10731da177e4SLinus Torvalds return 0; 10741da177e4SLinus Torvalds 10751da177e4SLinus Torvalds } 10761da177e4SLinus Torvalds 1077c7887325SDavid Howells SYSCALL_DEFINE2(osf_utimes, const char __user *, filename, 1078e5d9a90cSIvan Kokshaysky struct timeval32 __user *, tvs) 10791da177e4SLinus Torvalds { 10801c710c89SUlrich Drepper struct timespec tv[2]; 10811da177e4SLinus Torvalds 10821da177e4SLinus Torvalds if (tvs) { 10831c710c89SUlrich Drepper struct timeval ktvs[2]; 10841da177e4SLinus Torvalds if (get_tv32(&ktvs[0], &tvs[0]) || 10851da177e4SLinus Torvalds get_tv32(&ktvs[1], &tvs[1])) 10861da177e4SLinus Torvalds return -EFAULT; 10871c710c89SUlrich Drepper 10881c710c89SUlrich Drepper if (ktvs[0].tv_usec < 0 || ktvs[0].tv_usec >= 1000000 || 10891c710c89SUlrich Drepper ktvs[1].tv_usec < 0 || ktvs[1].tv_usec >= 1000000) 10901c710c89SUlrich Drepper return -EINVAL; 10911c710c89SUlrich Drepper 10921c710c89SUlrich Drepper tv[0].tv_sec = ktvs[0].tv_sec; 10931c710c89SUlrich Drepper tv[0].tv_nsec = 1000 * ktvs[0].tv_usec; 10941c710c89SUlrich Drepper tv[1].tv_sec = ktvs[1].tv_sec; 10951c710c89SUlrich Drepper tv[1].tv_nsec = 1000 * ktvs[1].tv_usec; 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 { 110414e2acd8SArjan van de Ven struct timespec end_time, *to = NULL; 11051da177e4SLinus Torvalds if (tvp) { 11061da177e4SLinus Torvalds time_t sec, usec; 11071da177e4SLinus Torvalds 110814e2acd8SArjan van de Ven to = &end_time; 110914e2acd8SArjan van de Ven 11101da177e4SLinus Torvalds if (!access_ok(VERIFY_READ, tvp, sizeof(*tvp)) 11111da177e4SLinus Torvalds || __get_user(sec, &tvp->tv_sec) 11121da177e4SLinus Torvalds || __get_user(usec, &tvp->tv_usec)) { 1113a2dcb44cSAl Viro return -EFAULT; 11141da177e4SLinus Torvalds } 11151da177e4SLinus Torvalds 11161da177e4SLinus Torvalds if (sec < 0 || usec < 0) 1117a2dcb44cSAl Viro return -EINVAL; 11181da177e4SLinus Torvalds 111914e2acd8SArjan van de Ven if (poll_select_set_timeout(to, sec, usec * NSEC_PER_USEC)) 112014e2acd8SArjan van de Ven return -EINVAL; 112114e2acd8SArjan van de Ven 11221da177e4SLinus Torvalds } 11231da177e4SLinus Torvalds 11241da177e4SLinus Torvalds /* OSF does not copy back the remaining time. */ 112514e2acd8SArjan van de Ven return core_sys_select(n, inp, outp, exp, to); 11261da177e4SLinus Torvalds } 11271da177e4SLinus Torvalds 11281da177e4SLinus Torvalds struct rusage32 { 11291da177e4SLinus Torvalds struct timeval32 ru_utime; /* user time used */ 11301da177e4SLinus Torvalds struct timeval32 ru_stime; /* system time used */ 11311da177e4SLinus Torvalds long ru_maxrss; /* maximum resident set size */ 11321da177e4SLinus Torvalds long ru_ixrss; /* integral shared memory size */ 11331da177e4SLinus Torvalds long ru_idrss; /* integral unshared data size */ 11341da177e4SLinus Torvalds long ru_isrss; /* integral unshared stack size */ 11351da177e4SLinus Torvalds long ru_minflt; /* page reclaims */ 11361da177e4SLinus Torvalds long ru_majflt; /* page faults */ 11371da177e4SLinus Torvalds long ru_nswap; /* swaps */ 11381da177e4SLinus Torvalds long ru_inblock; /* block input operations */ 11391da177e4SLinus Torvalds long ru_oublock; /* block output operations */ 11401da177e4SLinus Torvalds long ru_msgsnd; /* messages sent */ 11411da177e4SLinus Torvalds long ru_msgrcv; /* messages received */ 11421da177e4SLinus Torvalds long ru_nsignals; /* signals received */ 11431da177e4SLinus Torvalds long ru_nvcsw; /* voluntary context switches */ 11441da177e4SLinus Torvalds long ru_nivcsw; /* involuntary " */ 11451da177e4SLinus Torvalds }; 11461da177e4SLinus Torvalds 1147e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru) 11481da177e4SLinus Torvalds { 11491da177e4SLinus Torvalds struct rusage32 r; 1150dc9b77b5SFrederic Weisbecker u64 utime, stime; 11512019e8a3SFrederic Weisbecker unsigned long utime_jiffies, stime_jiffies; 11521da177e4SLinus Torvalds 11531da177e4SLinus Torvalds if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN) 11541da177e4SLinus Torvalds return -EINVAL; 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds memset(&r, 0, sizeof(r)); 11571da177e4SLinus Torvalds switch (who) { 11581da177e4SLinus Torvalds case RUSAGE_SELF: 1159dc9b77b5SFrederic Weisbecker task_cputime(current, &utime, &stime); 1160dc9b77b5SFrederic Weisbecker utime_jiffies = nsecs_to_jiffies(utime); 1161dc9b77b5SFrederic Weisbecker stime_jiffies = nsecs_to_jiffies(stime); 11622019e8a3SFrederic Weisbecker jiffies_to_timeval32(utime_jiffies, &r.ru_utime); 11632019e8a3SFrederic Weisbecker jiffies_to_timeval32(stime_jiffies, &r.ru_stime); 11641da177e4SLinus Torvalds r.ru_minflt = current->min_flt; 11651da177e4SLinus Torvalds r.ru_majflt = current->maj_flt; 11661da177e4SLinus Torvalds break; 11671da177e4SLinus Torvalds case RUSAGE_CHILDREN: 11685613fda9SFrederic Weisbecker utime_jiffies = nsecs_to_jiffies(current->signal->cutime); 11695613fda9SFrederic Weisbecker stime_jiffies = nsecs_to_jiffies(current->signal->cstime); 11702019e8a3SFrederic Weisbecker jiffies_to_timeval32(utime_jiffies, &r.ru_utime); 11712019e8a3SFrederic Weisbecker jiffies_to_timeval32(stime_jiffies, &r.ru_stime); 11721da177e4SLinus Torvalds r.ru_minflt = current->signal->cmin_flt; 11731da177e4SLinus Torvalds r.ru_majflt = current->signal->cmaj_flt; 11741da177e4SLinus Torvalds break; 11751da177e4SLinus Torvalds } 11761da177e4SLinus Torvalds 11771da177e4SLinus Torvalds return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0; 11781da177e4SLinus Torvalds } 11791da177e4SLinus Torvalds 1180e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options, 1181e5d9a90cSIvan Kokshaysky struct rusage32 __user *, ur) 11821da177e4SLinus Torvalds { 11831da177e4SLinus Torvalds struct rusage r; 11841da177e4SLinus Torvalds long ret, err; 118521c5977aSDan Rosenberg unsigned int status = 0; 11861da177e4SLinus Torvalds mm_segment_t old_fs; 11871da177e4SLinus Torvalds 11881da177e4SLinus Torvalds if (!ur) 11891da177e4SLinus Torvalds return sys_wait4(pid, ustatus, options, NULL); 11901da177e4SLinus Torvalds 11911da177e4SLinus Torvalds old_fs = get_fs(); 11921da177e4SLinus Torvalds 11931da177e4SLinus Torvalds set_fs (KERNEL_DS); 119421c5977aSDan Rosenberg ret = sys_wait4(pid, (unsigned int __user *) &status, options, 119521c5977aSDan Rosenberg (struct rusage __user *) &r); 11961da177e4SLinus Torvalds set_fs (old_fs); 11971da177e4SLinus Torvalds 11981da177e4SLinus Torvalds if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur))) 11991da177e4SLinus Torvalds return -EFAULT; 12001da177e4SLinus Torvalds 12011da177e4SLinus Torvalds err = 0; 120221c5977aSDan Rosenberg err |= put_user(status, ustatus); 12031da177e4SLinus Torvalds err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec); 12041da177e4SLinus Torvalds err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec); 12051da177e4SLinus Torvalds err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec); 12061da177e4SLinus Torvalds err |= __put_user(r.ru_stime.tv_usec, &ur->ru_stime.tv_usec); 12071da177e4SLinus Torvalds err |= __put_user(r.ru_maxrss, &ur->ru_maxrss); 12081da177e4SLinus Torvalds err |= __put_user(r.ru_ixrss, &ur->ru_ixrss); 12091da177e4SLinus Torvalds err |= __put_user(r.ru_idrss, &ur->ru_idrss); 12101da177e4SLinus Torvalds err |= __put_user(r.ru_isrss, &ur->ru_isrss); 12111da177e4SLinus Torvalds err |= __put_user(r.ru_minflt, &ur->ru_minflt); 12121da177e4SLinus Torvalds err |= __put_user(r.ru_majflt, &ur->ru_majflt); 12131da177e4SLinus Torvalds err |= __put_user(r.ru_nswap, &ur->ru_nswap); 12141da177e4SLinus Torvalds err |= __put_user(r.ru_inblock, &ur->ru_inblock); 12151da177e4SLinus Torvalds err |= __put_user(r.ru_oublock, &ur->ru_oublock); 12161da177e4SLinus Torvalds err |= __put_user(r.ru_msgsnd, &ur->ru_msgsnd); 12171da177e4SLinus Torvalds err |= __put_user(r.ru_msgrcv, &ur->ru_msgrcv); 12181da177e4SLinus Torvalds err |= __put_user(r.ru_nsignals, &ur->ru_nsignals); 12191da177e4SLinus Torvalds err |= __put_user(r.ru_nvcsw, &ur->ru_nvcsw); 12201da177e4SLinus Torvalds err |= __put_user(r.ru_nivcsw, &ur->ru_nivcsw); 12211da177e4SLinus Torvalds 12221da177e4SLinus Torvalds return err ? err : ret; 12231da177e4SLinus Torvalds } 12241da177e4SLinus Torvalds 12251da177e4SLinus Torvalds /* 12261da177e4SLinus Torvalds * I don't know what the parameters are: the first one 12271da177e4SLinus Torvalds * seems to be a timeval pointer, and I suspect the second 12281da177e4SLinus Torvalds * one is the time remaining.. Ho humm.. No documentation. 12291da177e4SLinus Torvalds */ 1230e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE2(osf_usleep_thread, struct timeval32 __user *, sleep, 1231e5d9a90cSIvan Kokshaysky struct timeval32 __user *, remain) 12321da177e4SLinus Torvalds { 12331da177e4SLinus Torvalds struct timeval tmp; 12341da177e4SLinus Torvalds unsigned long ticks; 12351da177e4SLinus Torvalds 12361da177e4SLinus Torvalds if (get_tv32(&tmp, sleep)) 12371da177e4SLinus Torvalds goto fault; 12381da177e4SLinus Torvalds 123924d568edSNishanth Aravamudan ticks = timeval_to_jiffies(&tmp); 12401da177e4SLinus Torvalds 124120c6abd1SNishanth Aravamudan ticks = schedule_timeout_interruptible(ticks); 12421da177e4SLinus Torvalds 12431da177e4SLinus Torvalds if (remain) { 124424d568edSNishanth Aravamudan jiffies_to_timeval(ticks, &tmp); 12451da177e4SLinus Torvalds if (put_tv32(remain, &tmp)) 12461da177e4SLinus Torvalds goto fault; 12471da177e4SLinus Torvalds } 12481da177e4SLinus Torvalds 12491da177e4SLinus Torvalds return 0; 12501da177e4SLinus Torvalds fault: 12511da177e4SLinus Torvalds return -EFAULT; 12521da177e4SLinus Torvalds } 12531da177e4SLinus Torvalds 12541da177e4SLinus Torvalds 12551da177e4SLinus Torvalds struct timex32 { 12561da177e4SLinus Torvalds unsigned int modes; /* mode selector */ 12571da177e4SLinus Torvalds long offset; /* time offset (usec) */ 12581da177e4SLinus Torvalds long freq; /* frequency offset (scaled ppm) */ 12591da177e4SLinus Torvalds long maxerror; /* maximum error (usec) */ 12601da177e4SLinus Torvalds long esterror; /* estimated error (usec) */ 12611da177e4SLinus Torvalds int status; /* clock command/status */ 12621da177e4SLinus Torvalds long constant; /* pll time constant */ 12631da177e4SLinus Torvalds long precision; /* clock precision (usec) (read only) */ 12641da177e4SLinus Torvalds long tolerance; /* clock frequency tolerance (ppm) 12651da177e4SLinus Torvalds * (read only) 12661da177e4SLinus Torvalds */ 12671da177e4SLinus Torvalds struct timeval32 time; /* (read only) */ 12681da177e4SLinus Torvalds long tick; /* (modified) usecs between clock ticks */ 12691da177e4SLinus Torvalds 12701da177e4SLinus Torvalds long ppsfreq; /* pps frequency (scaled ppm) (ro) */ 12711da177e4SLinus Torvalds long jitter; /* pps jitter (us) (ro) */ 12721da177e4SLinus Torvalds int shift; /* interval duration (s) (shift) (ro) */ 12731da177e4SLinus Torvalds long stabil; /* pps stability (scaled ppm) (ro) */ 12741da177e4SLinus Torvalds long jitcnt; /* jitter limit exceeded (ro) */ 12751da177e4SLinus Torvalds long calcnt; /* calibration intervals (ro) */ 12761da177e4SLinus Torvalds long errcnt; /* calibration errors (ro) */ 12771da177e4SLinus Torvalds long stbcnt; /* stability limit exceeded (ro) */ 12781da177e4SLinus Torvalds 12791da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 12801da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 12811da177e4SLinus Torvalds int :32; int :32; int :32; int :32; 12821da177e4SLinus Torvalds }; 12831da177e4SLinus Torvalds 1284e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p) 12851da177e4SLinus Torvalds { 12861da177e4SLinus Torvalds struct timex txc; 12871da177e4SLinus Torvalds int ret; 12881da177e4SLinus Torvalds 12891da177e4SLinus Torvalds /* copy relevant bits of struct timex. */ 12901da177e4SLinus Torvalds if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) || 12911da177e4SLinus Torvalds copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) - 12921da177e4SLinus Torvalds offsetof(struct timex32, time))) 12931da177e4SLinus Torvalds return -EFAULT; 12941da177e4SLinus Torvalds 12951da177e4SLinus Torvalds ret = do_adjtimex(&txc); 12961da177e4SLinus Torvalds if (ret < 0) 12971da177e4SLinus Torvalds return ret; 12981da177e4SLinus Torvalds 12991da177e4SLinus Torvalds /* copy back to timex32 */ 13001da177e4SLinus Torvalds if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) || 13011da177e4SLinus Torvalds (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) - 13021da177e4SLinus Torvalds offsetof(struct timex32, tick))) || 13031da177e4SLinus Torvalds (put_tv32(&txc_p->time, &txc.time))) 13041da177e4SLinus Torvalds return -EFAULT; 13051da177e4SLinus Torvalds 13061da177e4SLinus Torvalds return ret; 13071da177e4SLinus Torvalds } 13081da177e4SLinus Torvalds 13091da177e4SLinus Torvalds /* Get an address range which is currently unmapped. Similar to the 13101da177e4SLinus Torvalds generic version except that we know how to honor ADDR_LIMIT_32BIT. */ 13111da177e4SLinus Torvalds 13121da177e4SLinus Torvalds static unsigned long 13131da177e4SLinus Torvalds arch_get_unmapped_area_1(unsigned long addr, unsigned long len, 13141da177e4SLinus Torvalds unsigned long limit) 13151da177e4SLinus Torvalds { 13166d1c7ccaSMichel Lespinasse struct vm_unmapped_area_info info; 13171da177e4SLinus Torvalds 13186d1c7ccaSMichel Lespinasse info.flags = 0; 13196d1c7ccaSMichel Lespinasse info.length = len; 13206d1c7ccaSMichel Lespinasse info.low_limit = addr; 13216d1c7ccaSMichel Lespinasse info.high_limit = limit; 13226d1c7ccaSMichel Lespinasse info.align_mask = 0; 13236d1c7ccaSMichel Lespinasse info.align_offset = 0; 13246d1c7ccaSMichel Lespinasse return vm_unmapped_area(&info); 13251da177e4SLinus Torvalds } 13261da177e4SLinus Torvalds 13271da177e4SLinus Torvalds unsigned long 13281da177e4SLinus Torvalds arch_get_unmapped_area(struct file *filp, unsigned long addr, 13291da177e4SLinus Torvalds unsigned long len, unsigned long pgoff, 13301da177e4SLinus Torvalds unsigned long flags) 13311da177e4SLinus Torvalds { 13321da177e4SLinus Torvalds unsigned long limit; 13331da177e4SLinus Torvalds 13341da177e4SLinus Torvalds /* "32 bit" actually means 31 bit, since pointers sign extend. */ 13351da177e4SLinus Torvalds if (current->personality & ADDR_LIMIT_32BIT) 13361da177e4SLinus Torvalds limit = 0x80000000; 13371da177e4SLinus Torvalds else 13381da177e4SLinus Torvalds limit = TASK_SIZE; 13391da177e4SLinus Torvalds 13401da177e4SLinus Torvalds if (len > limit) 13411da177e4SLinus Torvalds return -ENOMEM; 13421da177e4SLinus Torvalds 13434b87b3b2SBenjamin Herrenschmidt if (flags & MAP_FIXED) 13444b87b3b2SBenjamin Herrenschmidt return addr; 13454b87b3b2SBenjamin Herrenschmidt 13461da177e4SLinus Torvalds /* First, see if the given suggestion fits. 13471da177e4SLinus Torvalds 13481da177e4SLinus Torvalds The OSF/1 loader (/sbin/loader) relies on us returning an 13491da177e4SLinus Torvalds address larger than the requested if one exists, which is 13501da177e4SLinus Torvalds a terribly broken way to program. 13511da177e4SLinus Torvalds 13521da177e4SLinus Torvalds That said, I can see the use in being able to suggest not 13531da177e4SLinus Torvalds merely specific addresses, but regions of memory -- perhaps 13541da177e4SLinus Torvalds this feature should be incorporated into all ports? */ 13551da177e4SLinus Torvalds 13561da177e4SLinus Torvalds if (addr) { 13571da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit); 13581da177e4SLinus Torvalds if (addr != (unsigned long) -ENOMEM) 13591da177e4SLinus Torvalds return addr; 13601da177e4SLinus Torvalds } 13611da177e4SLinus Torvalds 13621da177e4SLinus Torvalds /* Next, try allocating at TASK_UNMAPPED_BASE. */ 13631da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE), 13641da177e4SLinus Torvalds len, limit); 13651da177e4SLinus Torvalds if (addr != (unsigned long) -ENOMEM) 13661da177e4SLinus Torvalds return addr; 13671da177e4SLinus Torvalds 13681da177e4SLinus Torvalds /* Finally, try allocating in low memory. */ 13691da177e4SLinus Torvalds addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit); 13701da177e4SLinus Torvalds 13711da177e4SLinus Torvalds return addr; 13721da177e4SLinus Torvalds } 13731da177e4SLinus Torvalds 13741da177e4SLinus Torvalds #ifdef CONFIG_OSF4_COMPAT 13751da177e4SLinus Torvalds 13761da177e4SLinus Torvalds /* Clear top 32 bits of iov_len in the user's buffer for 13771da177e4SLinus Torvalds compatibility with old versions of OSF/1 where iov_len 13781da177e4SLinus Torvalds was defined as int. */ 13791da177e4SLinus Torvalds static int 13801da177e4SLinus Torvalds osf_fix_iov_len(const struct iovec __user *iov, unsigned long count) 13811da177e4SLinus Torvalds { 13821da177e4SLinus Torvalds unsigned long i; 13831da177e4SLinus Torvalds 13841da177e4SLinus Torvalds for (i = 0 ; i < count ; i++) { 13851da177e4SLinus Torvalds int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1; 13861da177e4SLinus Torvalds 13871da177e4SLinus Torvalds if (put_user(0, iov_len_high)) 13881da177e4SLinus Torvalds return -EFAULT; 13891da177e4SLinus Torvalds } 13901da177e4SLinus Torvalds return 0; 13911da177e4SLinus Torvalds } 13921da177e4SLinus Torvalds 1393e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_readv, unsigned long, fd, 1394e5d9a90cSIvan Kokshaysky const struct iovec __user *, vector, unsigned long, count) 13951da177e4SLinus Torvalds { 13961da177e4SLinus Torvalds if (unlikely(personality(current->personality) == PER_OSF4)) 13971da177e4SLinus Torvalds if (osf_fix_iov_len(vector, count)) 13981da177e4SLinus Torvalds return -EFAULT; 13991da177e4SLinus Torvalds return sys_readv(fd, vector, count); 14001da177e4SLinus Torvalds } 14011da177e4SLinus Torvalds 1402e5d9a90cSIvan Kokshaysky SYSCALL_DEFINE3(osf_writev, unsigned long, fd, 1403e5d9a90cSIvan Kokshaysky const struct iovec __user *, vector, unsigned long, count) 14041da177e4SLinus Torvalds { 14051da177e4SLinus Torvalds if (unlikely(personality(current->personality) == PER_OSF4)) 14061da177e4SLinus Torvalds if (osf_fix_iov_len(vector, count)) 14071da177e4SLinus Torvalds return -EFAULT; 14081da177e4SLinus Torvalds return sys_writev(fd, vector, count); 14091da177e4SLinus Torvalds } 14101da177e4SLinus Torvalds 14111da177e4SLinus Torvalds #endif 1412be53db6eSAl Viro 1413be53db6eSAl Viro SYSCALL_DEFINE2(osf_getpriority, int, which, int, who) 1414be53db6eSAl Viro { 1415be53db6eSAl Viro int prio = sys_getpriority(which, who); 1416be53db6eSAl Viro if (prio >= 0) { 1417be53db6eSAl Viro /* Return value is the unbiased priority, i.e. 20 - prio. 1418be53db6eSAl Viro This does result in negative return values, so signal 1419be53db6eSAl Viro no error */ 1420be53db6eSAl Viro force_successful_syscall_return(); 1421be53db6eSAl Viro prio = 20 - prio; 1422be53db6eSAl Viro } 1423be53db6eSAl Viro return prio; 1424be53db6eSAl Viro } 1425be53db6eSAl Viro 1426be53db6eSAl Viro SYSCALL_DEFINE0(getxuid) 1427be53db6eSAl Viro { 1428be53db6eSAl Viro current_pt_regs()->r20 = sys_geteuid(); 1429be53db6eSAl Viro return sys_getuid(); 1430be53db6eSAl Viro } 1431be53db6eSAl Viro 1432be53db6eSAl Viro SYSCALL_DEFINE0(getxgid) 1433be53db6eSAl Viro { 1434be53db6eSAl Viro current_pt_regs()->r20 = sys_getegid(); 1435be53db6eSAl Viro return sys_getgid(); 1436be53db6eSAl Viro } 1437be53db6eSAl Viro 1438be53db6eSAl Viro SYSCALL_DEFINE0(getxpid) 1439be53db6eSAl Viro { 1440be53db6eSAl Viro current_pt_regs()->r20 = sys_getppid(); 1441be53db6eSAl Viro return sys_getpid(); 1442be53db6eSAl Viro } 1443be53db6eSAl Viro 1444be53db6eSAl Viro SYSCALL_DEFINE0(alpha_pipe) 1445be53db6eSAl Viro { 1446be53db6eSAl Viro int fd[2]; 1447be53db6eSAl Viro int res = do_pipe_flags(fd, 0); 1448be53db6eSAl Viro if (!res) { 1449be53db6eSAl Viro /* The return values are in $0 and $20. */ 1450be53db6eSAl Viro current_pt_regs()->r20 = fd[1]; 1451be53db6eSAl Viro res = fd[0]; 1452be53db6eSAl Viro } 1453be53db6eSAl Viro return res; 1454be53db6eSAl Viro } 1455be53db6eSAl Viro 1456be53db6eSAl Viro SYSCALL_DEFINE1(sethae, unsigned long, val) 1457be53db6eSAl Viro { 1458be53db6eSAl Viro current_pt_regs()->hae = val; 1459be53db6eSAl Viro return 0; 1460be53db6eSAl Viro } 1461