^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * linux/arch/alpha/kernel/osf_sys.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 1995 Linus Torvalds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * This file handles some of the stranger OSF/1 system call interfaces.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Some of the system calls expect a non-C calling standard, others have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * special parameter blocks..
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/sched/signal.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/sched/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/sched/task_stack.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/sched/cputime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/smp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/stddef.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/syscalls.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/unistd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/ptrace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/user.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/utsname.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/timex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/major.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/stat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/mman.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/shm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/poll.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include <linux/ipc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <linux/namei.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include <linux/uio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #include <linux/vfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #include <linux/rcupdate.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #include <asm/fpu.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #include <asm/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #include <asm/sysinfo.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #include <asm/thread_info.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #include <asm/hwrpb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #include <asm/processor.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * Brk needs to return an error. Still support Linux's brk(0) query idiom,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * which OSF programs just shouldn't be doing. We're still not quite
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) * identical to OSF as we don't return 0 on success, but doing otherwise
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * would require changes to libc. Hopefully this is good enough.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) SYSCALL_DEFINE1(osf_brk, unsigned long, brk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) unsigned long retval = sys_brk(brk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) if (brk && brk != retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) retval = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * This is pure guess-work..
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) unsigned long, text_len, unsigned long, bss_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) unsigned long, bss_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct mm_struct *mm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) mm = current->mm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) mm->end_code = bss_start + bss_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) mm->start_brk = bss_start + bss_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) mm->brk = bss_start + bss_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #if 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) printk("set_program_attributes(%lx %lx %lx %lx)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) text_start, text_len, bss_start, bss_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * OSF/1 directory handling functions...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * The "getdents()" interface is much more sane: the "basep" stuff is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * braindamage (it can't really handle filesystems where the directory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * offset differences aren't the same as "d_reclen").
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) #define NAME_OFFSET offsetof (struct osf_dirent, d_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct osf_dirent {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) unsigned int d_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) unsigned short d_reclen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) unsigned short d_namlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) char d_name[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct osf_dirent_callback {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct dir_context ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct osf_dirent __user *dirent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) long __user *basep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) unsigned int count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) osf_filldir(struct dir_context *ctx, const char *name, int namlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) loff_t offset, u64 ino, unsigned int d_type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct osf_dirent __user *dirent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct osf_dirent_callback *buf =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) container_of(ctx, struct osf_dirent_callback, ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) unsigned int reclen = ALIGN(NAME_OFFSET + namlen + 1, sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) unsigned int d_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) buf->error = -EINVAL; /* only used if we fail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) if (reclen > buf->count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) d_ino = ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) buf->error = -EOVERFLOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return -EOVERFLOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) if (buf->basep) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (put_user(offset, buf->basep))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) goto Efault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) buf->basep = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) dirent = buf->dirent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) if (put_user(d_ino, &dirent->d_ino) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) put_user(namlen, &dirent->d_namlen) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) put_user(reclen, &dirent->d_reclen) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) copy_to_user(dirent->d_name, name, namlen) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) put_user(0, dirent->d_name + namlen))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) goto Efault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) dirent = (void __user *)dirent + reclen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) buf->dirent = dirent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) buf->count -= reclen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) Efault:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) buf->error = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) struct osf_dirent __user *, dirent, unsigned int, count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) long __user *, basep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) struct fd arg = fdget_pos(fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct osf_dirent_callback buf = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) .ctx.actor = osf_filldir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) .dirent = dirent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .basep = basep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .count = count
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) if (!arg.file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) return -EBADF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) error = iterate_dir(arg.file, &buf.ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) if (error >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) error = buf.error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (count != buf.count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) error = count - buf.count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) fdput_pos(arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) #undef NAME_OFFSET
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) unsigned long, prot, unsigned long, flags, unsigned long, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) unsigned long, off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) unsigned long ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) #if 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) printk("%s: unimplemented OSF mmap flags %04lx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) current->comm, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) if ((off + PAGE_ALIGN(len)) < off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) if (off & ~PAGE_MASK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) ret = ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) struct osf_stat {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) int st_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) int st_pad1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) unsigned st_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) unsigned short st_nlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) short st_nlink_reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) unsigned st_uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) unsigned st_gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) int st_rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) int st_ldev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) long st_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) int st_pad2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) int st_uatime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) int st_pad3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) int st_umtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) int st_pad4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) int st_uctime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) int st_pad5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) int st_pad6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) unsigned st_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) unsigned st_gen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) long st_spare[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) unsigned st_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) int st_ino_reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) int st_atime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) int st_atime_reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) int st_mtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) int st_mtime_reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) int st_ctime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) int st_ctime_reserved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) long st_blksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) long st_blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) * The OSF/1 statfs structure is much larger, but this should
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) * match the beginning, at least.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) struct osf_statfs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) short f_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) short f_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) int f_fsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) int f_bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) int f_blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) int f_bfree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) int f_bavail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) int f_files;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) int f_ffree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) __kernel_fsid_t f_fsid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) struct osf_statfs64 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) short f_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) short f_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) int f_pad1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) int f_pad2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) int f_pad3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) int f_pad4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) int f_pad5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) int f_pad6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) int f_pad7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) __kernel_fsid_t f_fsid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) u_short f_namemax;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) short f_reserved1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) int f_spare[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) char f_pad8[90];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) char f_pad9[90];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) long mount_info[10];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) u_long f_flags2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) long f_spare2[14];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) long f_fsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) long f_bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) long f_blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) long f_bfree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) long f_bavail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) long f_files;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) long f_ffree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) linux_to_osf_stat(struct kstat *lstat, struct osf_stat __user *osf_stat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) struct osf_stat tmp = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) tmp.st_dev = lstat->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) tmp.st_mode = lstat->mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) tmp.st_nlink = lstat->nlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) tmp.st_uid = from_kuid_munged(current_user_ns(), lstat->uid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) tmp.st_gid = from_kgid_munged(current_user_ns(), lstat->gid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) tmp.st_rdev = lstat->rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) tmp.st_ldev = lstat->rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) tmp.st_size = lstat->size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) tmp.st_uatime = lstat->atime.tv_nsec / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) tmp.st_umtime = lstat->mtime.tv_nsec / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) tmp.st_uctime = lstat->ctime.tv_nsec / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) tmp.st_ino = lstat->ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) tmp.st_atime = lstat->atime.tv_sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) tmp.st_mtime = lstat->mtime.tv_sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) tmp.st_ctime = lstat->ctime.tv_sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) tmp.st_blksize = lstat->blksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) tmp.st_blocks = lstat->blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) return copy_to_user(osf_stat, &tmp, sizeof(tmp)) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) unsigned long bufsiz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) struct osf_statfs tmp_stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) tmp_stat.f_type = linux_stat->f_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) tmp_stat.f_flags = 0; /* mount flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) tmp_stat.f_fsize = linux_stat->f_frsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) tmp_stat.f_bsize = linux_stat->f_bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) tmp_stat.f_blocks = linux_stat->f_blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) tmp_stat.f_bfree = linux_stat->f_bfree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) tmp_stat.f_bavail = linux_stat->f_bavail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) tmp_stat.f_files = linux_stat->f_files;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) tmp_stat.f_ffree = linux_stat->f_ffree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) tmp_stat.f_fsid = linux_stat->f_fsid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) if (bufsiz > sizeof(tmp_stat))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) bufsiz = sizeof(tmp_stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) linux_to_osf_statfs64(struct kstatfs *linux_stat, struct osf_statfs64 __user *osf_stat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) unsigned long bufsiz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) struct osf_statfs64 tmp_stat = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) tmp_stat.f_type = linux_stat->f_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) tmp_stat.f_fsize = linux_stat->f_frsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) tmp_stat.f_bsize = linux_stat->f_bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) tmp_stat.f_blocks = linux_stat->f_blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) tmp_stat.f_bfree = linux_stat->f_bfree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) tmp_stat.f_bavail = linux_stat->f_bavail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) tmp_stat.f_files = linux_stat->f_files;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) tmp_stat.f_ffree = linux_stat->f_ffree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) tmp_stat.f_fsid = linux_stat->f_fsid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) if (bufsiz > sizeof(tmp_stat))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) bufsiz = sizeof(tmp_stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) struct osf_statfs __user *, buffer, unsigned long, bufsiz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) struct kstatfs linux_stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) int error = user_statfs(pathname, &linux_stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) if (!error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) SYSCALL_DEFINE2(osf_stat, char __user *, name, struct osf_stat __user *, buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) struct kstat stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) error = vfs_stat(name, &stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) return linux_to_osf_stat(&stat, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) SYSCALL_DEFINE2(osf_lstat, char __user *, name, struct osf_stat __user *, buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) struct kstat stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) error = vfs_lstat(name, &stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) return linux_to_osf_stat(&stat, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) SYSCALL_DEFINE2(osf_fstat, int, fd, struct osf_stat __user *, buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) struct kstat stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) error = vfs_fstat(fd, &stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) return linux_to_osf_stat(&stat, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) struct osf_statfs __user *, buffer, unsigned long, bufsiz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) struct kstatfs linux_stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) int error = fd_statfs(fd, &linux_stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) if (!error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) SYSCALL_DEFINE3(osf_statfs64, char __user *, pathname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) struct osf_statfs64 __user *, buffer, unsigned long, bufsiz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) struct kstatfs linux_stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) int error = user_statfs(pathname, &linux_stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (!error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) SYSCALL_DEFINE3(osf_fstatfs64, unsigned long, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) struct osf_statfs64 __user *, buffer, unsigned long, bufsiz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) struct kstatfs linux_stat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) int error = fd_statfs(fd, &linux_stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) if (!error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) * Uhh.. OSF/1 mount parameters aren't exactly obvious..
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) * Although to be frank, neither are the native Linux/i386 ones..
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) struct ufs_args {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) char __user *devname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) int flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) uid_t exroot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) struct cdfs_args {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) char __user *devname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) int flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) uid_t exroot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) /* This has lots more here, which Linux handles with the option block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) but I'm too lazy to do the translation into ASCII. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) struct procfs_args {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) char __user *devname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) int flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) uid_t exroot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) * We can't actually handle ufs yet, so we translate UFS mounts to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) * ext2fs mounts. I wouldn't mind a UFS filesystem, but the UFS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) * layout is so braindead it's a major headache doing it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) * Just how long ago was it written? OTOH our UFS driver may be still
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) * unhappy with OSF UFS. [CHECKME]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) osf_ufs_mount(const char __user *dirname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) struct ufs_args __user *args, int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) struct cdfs_args tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) struct filename *devname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) retval = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) if (copy_from_user(&tmp, args, sizeof(tmp)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) devname = getname(tmp.devname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) retval = PTR_ERR(devname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) if (IS_ERR(devname))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) retval = do_mount(devname->name, dirname, "ext2", flags, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) putname(devname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) osf_cdfs_mount(const char __user *dirname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) struct cdfs_args __user *args, int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) struct cdfs_args tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) struct filename *devname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) retval = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) if (copy_from_user(&tmp, args, sizeof(tmp)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) devname = getname(tmp.devname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) retval = PTR_ERR(devname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) if (IS_ERR(devname))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) retval = do_mount(devname->name, dirname, "iso9660", flags, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) putname(devname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) osf_procfs_mount(const char __user *dirname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) struct procfs_args __user *args, int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) struct procfs_args tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) if (copy_from_user(&tmp, args, sizeof(tmp)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) return do_mount("", dirname, "proc", flags, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) int, flag, void __user *, data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) switch (typenr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) retval = osf_ufs_mount(path, data, flag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) case 6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) retval = osf_cdfs_mount(path, data, flag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) case 9:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) retval = osf_procfs_mount(path, data, flag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) retval = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) printk("osf_mount(%ld, %x)\n", typenr, flag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) SYSCALL_DEFINE1(osf_utsname, char __user *, name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) char tmp[5 * 32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) down_read(&uts_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) memcpy(tmp + 0 * 32, utsname()->sysname, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) memcpy(tmp + 1 * 32, utsname()->nodename, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) memcpy(tmp + 2 * 32, utsname()->release, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) memcpy(tmp + 3 * 32, utsname()->version, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) memcpy(tmp + 4 * 32, utsname()->machine, 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) up_read(&uts_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) if (copy_to_user(name, tmp, sizeof(tmp)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) SYSCALL_DEFINE0(getpagesize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) return PAGE_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) SYSCALL_DEFINE0(getdtablesize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) return sysctl_nr_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) * For compatibility with OSF/1 only. Use utsname(2) instead.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) char *kname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) char tmp[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) if (namelen < 0 || namelen > 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) namelen = 32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) down_read(&uts_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) kname = utsname()->domainname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) len = strnlen(kname, namelen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) len = min(len + 1, namelen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) memcpy(tmp, kname, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) up_read(&uts_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) if (copy_to_user(name, tmp, len))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) * The following stuff should move into a header file should it ever
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) * be labeled "officially supported." Right now, there is just enough
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) * support to avoid applications (such as tar) printing error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) * messages. The attributes are not really implemented.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) * Values for Property list entry flag
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) #define PLE_PROPAGATE_ON_COPY 0x1 /* cp(1) will copy entry
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) by default */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) #define PLE_FLAG_MASK 0x1 /* Valid flag values */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) #define PLE_FLAG_ALL -1 /* All flag value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) struct proplistname_args {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) unsigned int pl_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) unsigned int pl_numnames;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) char **pl_names;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) union pl_args {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) struct setargs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) char __user *path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) long follow;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) long nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) char __user *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) } set;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) struct fsetargs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) long fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) long nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) char __user *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) } fset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) struct getargs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) char __user *path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) long follow;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) struct proplistname_args __user *name_args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) long nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) char __user *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) int __user *min_buf_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) } get;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) struct fgetargs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) long fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) struct proplistname_args __user *name_args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) long nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) char __user *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) int __user *min_buf_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) } fget;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) struct delargs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) char __user *path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) long follow;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) struct proplistname_args __user *name_args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) } del;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) struct fdelargs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) long fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) struct proplistname_args __user *name_args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) } fdel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) enum pl_code {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) PL_SET = 1, PL_FSET = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) PL_GET = 3, PL_FGET = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) PL_DEL = 5, PL_FDEL = 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) union pl_args __user *, args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) long error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) int __user *min_buf_size_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) switch (code) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) case PL_SET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) if (get_user(error, &args->set.nbytes))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) error = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) case PL_FSET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) if (get_user(error, &args->fset.nbytes))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) error = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) case PL_GET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) error = get_user(min_buf_size_ptr, &args->get.min_buf_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) error = put_user(0, min_buf_size_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) case PL_FGET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) error = get_user(min_buf_size_ptr, &args->fget.min_buf_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) error = put_user(0, min_buf_size_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) case PL_DEL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) case PL_FDEL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) error = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) struct sigstack __user *, uoss)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) unsigned long usp = rdusp();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) unsigned long oss_os = on_sig_stack(usp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) if (uss) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) void __user *ss_sp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) error = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) if (get_user(ss_sp, &uss->ss_sp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) /* If the current stack was set with sigaltstack, don't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) swap stacks while we are on it. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) error = -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) if (current->sas_ss_sp && on_sig_stack(usp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) /* Since we don't know the extent of the stack, and we don't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) track onstack-ness, but rather calculate it, we must
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) presume a size. Ho hum this interface is lossy. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) current->sas_ss_size = SIGSTKSZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) if (uoss) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) error = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) if (put_user(oss_sp, &uoss->ss_sp) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) put_user(oss_os, &uoss->ss_onstack))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) const char *sysinfo_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) utsname()->sysname,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) utsname()->nodename,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) utsname()->release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) utsname()->version,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) utsname()->machine,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) "alpha", /* instruction set architecture */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) "dummy", /* hardware serial number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) "dummy", /* hardware manufacturer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) "dummy", /* secure RPC domain */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) unsigned long offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) const char *res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) long len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) char tmp[__NEW_UTS_LEN + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) offset = command-1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) if (offset >= ARRAY_SIZE(sysinfo_table)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) /* Digital UNIX has a few unpublished interfaces here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) printk("sysinfo(%d)", command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) down_read(&uts_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) res = sysinfo_table[offset];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) len = strlen(res)+1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) if ((unsigned long)len > (unsigned long)count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) len = count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) memcpy(tmp, res, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) up_read(&uts_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) if (copy_to_user(buf, tmp, len))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) unsigned long, nbytes, int __user *, start, void __user *, arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) unsigned long w;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) struct percpu_struct *cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) switch (op) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) case GSI_IEEE_FP_CONTROL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) /* Return current software fp control & status bits. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) /* Note that DU doesn't verify available space here. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) w = current_thread_info()->ieee_state & IEEE_SW_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) w = swcr_update_status(w, rdfpcr());
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) if (put_user(w, (unsigned long __user *) buffer))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) case GSI_IEEE_STATE_AT_SIGNAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) * Not sure anybody will ever use this weird stuff. These
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) * ops can be used (under OSF/1) to set the fpcr that should
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) * be used when a signal handler starts executing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) case GSI_UACPROC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) if (nbytes < sizeof(unsigned int))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) w = current_thread_info()->status & UAC_BITMASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) if (put_user(w, (unsigned int __user *)buffer))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) case GSI_PROC_TYPE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) if (nbytes < sizeof(unsigned long))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) cpu = (struct percpu_struct*)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) ((char*)hwrpb + hwrpb->processor_offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) w = cpu->type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) if (put_user(w, (unsigned long __user*)buffer))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) case GSI_GET_HWRPB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) if (nbytes > sizeof(*hwrpb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) if (copy_to_user(buffer, hwrpb, nbytes) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) unsigned long, nbytes, int __user *, start, void __user *, arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) switch (op) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) case SSI_IEEE_FP_CONTROL: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) unsigned long swcr, fpcr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) unsigned int *state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) * Alpha Architecture Handbook 4.7.7.3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) * To be fully IEEE compiant, we must track the current IEEE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) * exception state in software, because spurious bits can be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) * set in the trap shadow of a software-complete insn.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) if (get_user(swcr, (unsigned long __user *)buffer))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) state = ¤t_thread_info()->ieee_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) /* Update softare trap enable bits. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) *state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) /* Update the real fpcr. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) fpcr = rdfpcr() & FPCR_DYN_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) fpcr |= ieee_swcr_to_fpcr(swcr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) wrfpcr(fpcr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) case SSI_IEEE_RAISE_EXCEPTION: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) unsigned long exc, swcr, fpcr, fex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) unsigned int *state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) if (get_user(exc, (unsigned long __user *)buffer))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) state = ¤t_thread_info()->ieee_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) exc &= IEEE_STATUS_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) /* Update softare trap enable bits. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) swcr = (*state & IEEE_SW_MASK) | exc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) *state |= exc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) /* Update the real fpcr. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) fpcr = rdfpcr();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) fpcr |= ieee_swcr_to_fpcr(swcr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) wrfpcr(fpcr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) /* If any exceptions set by this call, and are unmasked,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) send a signal. Old exceptions are not signaled. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) if (fex) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) int si_code = FPE_FLTUNK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) if (fex & IEEE_TRAP_ENABLE_UNF) si_code = FPE_FLTUND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) if (fex & IEEE_TRAP_ENABLE_OVF) si_code = FPE_FLTOVF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) send_sig_fault(SIGFPE, si_code,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) (void __user *)NULL, /* FIXME */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) 0, current);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) case SSI_IEEE_STATE_AT_SIGNAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) * Not sure anybody will ever use this weird stuff. These
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) * ops can be used (under OSF/1) to set the fpcr that should
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) * be used when a signal handler starts executing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) case SSI_NVPAIRS: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) unsigned __user *p = buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) unsigned i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) for (i = 0, p = buffer; i < nbytes; ++i, p += 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) unsigned v, w, status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) if (get_user(v, p) || get_user(w, p + 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) switch (v) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) case SSIN_UACPROC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) w &= UAC_BITMASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) status = current_thread_info()->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) status = (status & ~UAC_BITMASK) | w;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) current_thread_info()->status = status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) case SSI_LMF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) /* Translations due to the fact that OSF's time_t is an int. Which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) affects all sorts of things, like timeval and itimerval. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) extern struct timezone sys_tz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) struct timeval32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) int tv_sec, tv_usec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) struct itimerval32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) struct timeval32 it_interval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) struct timeval32 it_value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) static inline long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) get_tv32(struct timespec64 *o, struct timeval32 __user *i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) struct timeval32 tv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) if (copy_from_user(&tv, i, sizeof(struct timeval32)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) o->tv_sec = tv.tv_sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) o->tv_nsec = tv.tv_usec * NSEC_PER_USEC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) static inline long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) put_tv32(struct timeval32 __user *o, struct timespec64 *i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) return copy_to_user(o, &(struct timeval32){
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) .tv_sec = i->tv_sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) .tv_usec = i->tv_nsec / NSEC_PER_USEC},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) sizeof(struct timeval32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) static inline long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) put_tv_to_tv32(struct timeval32 __user *o, struct __kernel_old_timeval *i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) return copy_to_user(o, &(struct timeval32){
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) .tv_sec = i->tv_sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) .tv_usec = i->tv_usec},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) sizeof(struct timeval32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) value->tv_sec = jiffies / HZ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) struct timezone __user *, tz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) if (tv) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) struct timespec64 kts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) ktime_get_real_ts64(&kts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) if (put_tv32(tv, &kts))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) if (tz) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) struct timezone __user *, tz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) struct timespec64 kts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) struct timezone ktz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) if (tv) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) if (get_tv32(&kts, tv))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) if (tz) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) if (copy_from_user(&ktz, tz, sizeof(*tz)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) return do_sys_settimeofday64(tv ? &kts : NULL, tz ? &ktz : NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) asmlinkage long sys_ni_posix_timers(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) SYSCALL_DEFINE2(osf_utimes, const char __user *, filename,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) struct timeval32 __user *, tvs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) struct timespec64 tv[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) if (tvs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) if (get_tv32(&tv[0], &tvs[0]) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) get_tv32(&tv[1], &tvs[1]))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) if (tv[0].tv_nsec < 0 || tv[0].tv_nsec >= 1000000000 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) tv[1].tv_nsec < 0 || tv[1].tv_nsec >= 1000000000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) return do_utimes(AT_FDCWD, filename, tvs ? tv : NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) SYSCALL_DEFINE5(osf_select, int, n, fd_set __user *, inp, fd_set __user *, outp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) fd_set __user *, exp, struct timeval32 __user *, tvp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) struct timespec64 end_time, *to = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) if (tvp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) struct timespec64 tv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) to = &end_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) if (get_tv32(&tv, tvp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) if (tv.tv_sec < 0 || tv.tv_nsec < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) if (poll_select_set_timeout(to, tv.tv_sec, tv.tv_nsec))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) /* OSF does not copy back the remaining time. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) return core_sys_select(n, inp, outp, exp, to);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) struct rusage32 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) struct timeval32 ru_utime; /* user time used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) struct timeval32 ru_stime; /* system time used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) long ru_maxrss; /* maximum resident set size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) long ru_ixrss; /* integral shared memory size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) long ru_idrss; /* integral unshared data size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) long ru_isrss; /* integral unshared stack size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) long ru_minflt; /* page reclaims */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) long ru_majflt; /* page faults */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) long ru_nswap; /* swaps */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) long ru_inblock; /* block input operations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) long ru_oublock; /* block output operations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) long ru_msgsnd; /* messages sent */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) long ru_msgrcv; /* messages received */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) long ru_nsignals; /* signals received */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) long ru_nvcsw; /* voluntary context switches */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) long ru_nivcsw; /* involuntary " */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) struct rusage32 r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) u64 utime, stime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) unsigned long utime_jiffies, stime_jiffies;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) memset(&r, 0, sizeof(r));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) switch (who) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) case RUSAGE_SELF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) task_cputime(current, &utime, &stime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) utime_jiffies = nsecs_to_jiffies(utime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) stime_jiffies = nsecs_to_jiffies(stime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) jiffies_to_timeval32(utime_jiffies, &r.ru_utime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) jiffies_to_timeval32(stime_jiffies, &r.ru_stime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) r.ru_minflt = current->min_flt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) r.ru_majflt = current->maj_flt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) case RUSAGE_CHILDREN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) utime_jiffies = nsecs_to_jiffies(current->signal->cutime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) stime_jiffies = nsecs_to_jiffies(current->signal->cstime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) jiffies_to_timeval32(utime_jiffies, &r.ru_utime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) jiffies_to_timeval32(stime_jiffies, &r.ru_stime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) r.ru_minflt = current->signal->cmin_flt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) r.ru_majflt = current->signal->cmaj_flt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) struct rusage32 __user *, ur)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) struct rusage r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) long err = kernel_wait4(pid, ustatus, options, &r);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) if (err <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) if (!ur)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) if (put_tv_to_tv32(&ur->ru_utime, &r.ru_utime))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) if (put_tv_to_tv32(&ur->ru_stime, &r.ru_stime))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) if (copy_to_user(&ur->ru_maxrss, &r.ru_maxrss,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) sizeof(struct rusage32) - offsetof(struct rusage32, ru_maxrss)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) * I don't know what the parameters are: the first one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) * seems to be a timeval pointer, and I suspect the second
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) * one is the time remaining.. Ho humm.. No documentation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) SYSCALL_DEFINE2(osf_usleep_thread, struct timeval32 __user *, sleep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) struct timeval32 __user *, remain)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) struct timespec64 tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) unsigned long ticks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) if (get_tv32(&tmp, sleep))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) goto fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) ticks = timespec64_to_jiffies(&tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) ticks = schedule_timeout_interruptible(ticks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) if (remain) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) jiffies_to_timespec64(ticks, &tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) if (put_tv32(remain, &tmp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) goto fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) fault:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) struct timex32 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) unsigned int modes; /* mode selector */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) long offset; /* time offset (usec) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) long freq; /* frequency offset (scaled ppm) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) long maxerror; /* maximum error (usec) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) long esterror; /* estimated error (usec) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) int status; /* clock command/status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) long constant; /* pll time constant */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) long precision; /* clock precision (usec) (read only) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) long tolerance; /* clock frequency tolerance (ppm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) * (read only)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) struct timeval32 time; /* (read only) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) long tick; /* (modified) usecs between clock ticks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) long ppsfreq; /* pps frequency (scaled ppm) (ro) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) long jitter; /* pps jitter (us) (ro) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) int shift; /* interval duration (s) (shift) (ro) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) long stabil; /* pps stability (scaled ppm) (ro) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) long jitcnt; /* jitter limit exceeded (ro) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) long calcnt; /* calibration intervals (ro) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) long errcnt; /* calibration errors (ro) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) long stbcnt; /* stability limit exceeded (ro) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) int :32; int :32; int :32; int :32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) int :32; int :32; int :32; int :32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) int :32; int :32; int :32; int :32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) struct __kernel_timex txc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) /* copy relevant bits of struct timex. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) offsetof(struct timex32, tick)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) ret = do_adjtimex(&txc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) /* copy back to timex32 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) offsetof(struct timex32, tick))) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) (put_user(txc.time.tv_sec, &txc_p->time.tv_sec)) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) (put_user(txc.time.tv_usec, &txc_p->time.tv_usec)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) /* Get an address range which is currently unmapped. Similar to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) generic version except that we know how to honor ADDR_LIMIT_32BIT. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) static unsigned long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) unsigned long limit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) struct vm_unmapped_area_info info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) info.flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) info.length = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) info.low_limit = addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) info.high_limit = limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) info.align_mask = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) info.align_offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) return vm_unmapped_area(&info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) unsigned long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) arch_get_unmapped_area(struct file *filp, unsigned long addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) unsigned long len, unsigned long pgoff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) unsigned long flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) unsigned long limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) /* "32 bit" actually means 31 bit, since pointers sign extend. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) if (current->personality & ADDR_LIMIT_32BIT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) limit = 0x80000000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) limit = TASK_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) if (len > limit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) if (flags & MAP_FIXED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) return addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) /* First, see if the given suggestion fits.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) The OSF/1 loader (/sbin/loader) relies on us returning an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) address larger than the requested if one exists, which is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) a terribly broken way to program.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) That said, I can see the use in being able to suggest not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) merely specific addresses, but regions of memory -- perhaps
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) this feature should be incorporated into all ports? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) if (addr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) if (addr != (unsigned long) -ENOMEM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) return addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) /* Next, try allocating at TASK_UNMAPPED_BASE. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) len, limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) if (addr != (unsigned long) -ENOMEM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) return addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) /* Finally, try allocating in low memory. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) return addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) #ifdef CONFIG_OSF4_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) /* Clear top 32 bits of iov_len in the user's buffer for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) compatibility with old versions of OSF/1 where iov_len
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) was defined as int. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) osf_fix_iov_len(const struct iovec __user *iov, unsigned long count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) unsigned long i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) for (i = 0 ; i < count ; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) if (put_user(0, iov_len_high))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) SYSCALL_DEFINE3(osf_readv, unsigned long, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) const struct iovec __user *, vector, unsigned long, count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) #ifdef CONFIG_OSF4_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) if (unlikely(personality(current->personality) == PER_OSF4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) if (osf_fix_iov_len(vector, count))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) return sys_readv(fd, vector, count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) SYSCALL_DEFINE3(osf_writev, unsigned long, fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) const struct iovec __user *, vector, unsigned long, count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) #ifdef CONFIG_OSF4_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) if (unlikely(personality(current->personality) == PER_OSF4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) if (osf_fix_iov_len(vector, count))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) return sys_writev(fd, vector, count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) SYSCALL_DEFINE2(osf_getpriority, int, which, int, who)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) int prio = sys_getpriority(which, who);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) if (prio >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) /* Return value is the unbiased priority, i.e. 20 - prio.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) This does result in negative return values, so signal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) no error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) force_successful_syscall_return();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) prio = 20 - prio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) return prio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) SYSCALL_DEFINE0(getxuid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) current_pt_regs()->r20 = sys_geteuid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) return sys_getuid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) SYSCALL_DEFINE0(getxgid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) current_pt_regs()->r20 = sys_getegid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) return sys_getgid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) SYSCALL_DEFINE0(getxpid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) current_pt_regs()->r20 = sys_getppid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) return sys_getpid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) SYSCALL_DEFINE0(alpha_pipe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) int fd[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) int res = do_pipe_flags(fd, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) if (!res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) /* The return values are in $0 and $20. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) current_pt_regs()->r20 = fd[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) res = fd[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) SYSCALL_DEFINE1(sethae, unsigned long, val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) current_pt_regs()->hae = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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