Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: sys_sunos32.c,v 1.64 2002/02/09 19:49:31 davem Exp $ |
| 2 | * sys_sunos32.c: SunOS binary compatibility layer on sparc64. |
| 3 | * |
| 4 | * Copyright (C) 1995, 1996, 1997 David S. Miller (davem@caip.rutgers.edu) |
| 5 | * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx) |
| 6 | * |
| 7 | * Based upon preliminary work which is: |
| 8 | * |
| 9 | * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu) |
| 10 | */ |
| 11 | |
| 12 | #include <linux/kernel.h> |
| 13 | #include <linux/sched.h> |
| 14 | #include <linux/types.h> |
Randy Dunlap | a941564 | 2006-01-11 12:17:48 -0800 | [diff] [blame] | 15 | #include <linux/capability.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/compat.h> |
| 17 | #include <linux/mman.h> |
| 18 | #include <linux/mm.h> |
| 19 | #include <linux/swap.h> |
| 20 | #include <linux/fs.h> |
| 21 | #include <linux/file.h> |
| 22 | #include <linux/resource.h> |
| 23 | #include <linux/ipc.h> |
| 24 | #include <linux/shm.h> |
| 25 | #include <linux/msg.h> |
| 26 | #include <linux/sem.h> |
| 27 | #include <linux/signal.h> |
| 28 | #include <linux/uio.h> |
| 29 | #include <linux/utsname.h> |
| 30 | #include <linux/major.h> |
| 31 | #include <linux/stat.h> |
| 32 | #include <linux/slab.h> |
| 33 | #include <linux/pagemap.h> |
| 34 | #include <linux/errno.h> |
| 35 | #include <linux/smp.h> |
| 36 | #include <linux/smp_lock.h> |
| 37 | #include <linux/syscalls.h> |
| 38 | |
| 39 | #include <asm/uaccess.h> |
| 40 | #include <asm/page.h> |
| 41 | #include <asm/pgtable.h> |
| 42 | #include <asm/pconf.h> |
| 43 | #include <asm/idprom.h> /* for gethostid() */ |
| 44 | #include <asm/unistd.h> |
| 45 | #include <asm/system.h> |
| 46 | |
| 47 | /* For the nfs mount emulation */ |
| 48 | #include <linux/socket.h> |
| 49 | #include <linux/in.h> |
| 50 | #include <linux/nfs.h> |
| 51 | #include <linux/nfs2.h> |
| 52 | #include <linux/nfs_mount.h> |
| 53 | |
| 54 | /* for sunos_select */ |
| 55 | #include <linux/time.h> |
| 56 | #include <linux/personality.h> |
| 57 | |
| 58 | /* For SOCKET_I */ |
| 59 | #include <linux/socket.h> |
| 60 | #include <net/sock.h> |
| 61 | #include <net/compat.h> |
| 62 | |
| 63 | #define SUNOS_NR_OPEN 256 |
| 64 | |
| 65 | asmlinkage u32 sunos_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u32 off) |
| 66 | { |
| 67 | struct file *file = NULL; |
| 68 | unsigned long retval, ret_type; |
| 69 | |
| 70 | if (flags & MAP_NORESERVE) { |
| 71 | static int cnt; |
| 72 | if (cnt++ < 10) |
| 73 | printk("%s: unimplemented SunOS MAP_NORESERVE mmap() flag\n", |
| 74 | current->comm); |
| 75 | flags &= ~MAP_NORESERVE; |
| 76 | } |
| 77 | retval = -EBADF; |
| 78 | if (!(flags & MAP_ANONYMOUS)) { |
| 79 | struct inode * inode; |
| 80 | if (fd >= SUNOS_NR_OPEN) |
| 81 | goto out; |
| 82 | file = fget(fd); |
| 83 | if (!file) |
| 84 | goto out; |
| 85 | inode = file->f_dentry->d_inode; |
| 86 | if (imajor(inode) == MEM_MAJOR && iminor(inode) == 5) { |
| 87 | flags |= MAP_ANONYMOUS; |
| 88 | fput(file); |
| 89 | file = NULL; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | retval = -EINVAL; |
| 94 | if (!(flags & MAP_FIXED)) |
| 95 | addr = 0; |
| 96 | else if (len > 0xf0000000 || addr > 0xf0000000 - len) |
| 97 | goto out_putf; |
| 98 | ret_type = flags & _MAP_NEW; |
| 99 | flags &= ~_MAP_NEW; |
| 100 | |
| 101 | flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); |
| 102 | down_write(¤t->mm->mmap_sem); |
| 103 | retval = do_mmap(file, |
| 104 | (unsigned long) addr, (unsigned long) len, |
| 105 | (unsigned long) prot, (unsigned long) flags, |
| 106 | (unsigned long) off); |
| 107 | up_write(¤t->mm->mmap_sem); |
| 108 | if (!ret_type) |
| 109 | retval = ((retval < 0xf0000000) ? 0 : retval); |
| 110 | out_putf: |
| 111 | if (file) |
| 112 | fput(file); |
| 113 | out: |
| 114 | return (u32) retval; |
| 115 | } |
| 116 | |
| 117 | asmlinkage int sunos_mctl(u32 addr, u32 len, int function, u32 arg) |
| 118 | { |
| 119 | return 0; |
| 120 | } |
| 121 | |
| 122 | asmlinkage int sunos_brk(u32 baddr) |
| 123 | { |
| 124 | int freepages, retval = -ENOMEM; |
| 125 | unsigned long rlim; |
| 126 | unsigned long newbrk, oldbrk, brk = (unsigned long) baddr; |
| 127 | |
| 128 | down_write(¤t->mm->mmap_sem); |
| 129 | if (brk < current->mm->end_code) |
| 130 | goto out; |
| 131 | newbrk = PAGE_ALIGN(brk); |
| 132 | oldbrk = PAGE_ALIGN(current->mm->brk); |
| 133 | retval = 0; |
| 134 | if (oldbrk == newbrk) { |
| 135 | current->mm->brk = brk; |
| 136 | goto out; |
| 137 | } |
| 138 | /* Always allow shrinking brk. */ |
| 139 | if (brk <= current->mm->brk) { |
| 140 | current->mm->brk = brk; |
| 141 | do_munmap(current->mm, newbrk, oldbrk-newbrk); |
| 142 | goto out; |
| 143 | } |
| 144 | /* Check against rlimit and stack.. */ |
| 145 | retval = -ENOMEM; |
| 146 | rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur; |
| 147 | if (rlim >= RLIM_INFINITY) |
| 148 | rlim = ~0; |
| 149 | if (brk - current->mm->end_code > rlim) |
| 150 | goto out; |
| 151 | /* Check against existing mmap mappings. */ |
| 152 | if (find_vma_intersection(current->mm, oldbrk, newbrk+PAGE_SIZE)) |
| 153 | goto out; |
| 154 | /* stupid algorithm to decide if we have enough memory: while |
| 155 | * simple, it hopefully works in most obvious cases.. Easy to |
| 156 | * fool it, but this should catch most mistakes. |
| 157 | */ |
| 158 | freepages = get_page_cache_size(); |
| 159 | freepages >>= 1; |
| 160 | freepages += nr_free_pages(); |
| 161 | freepages += nr_swap_pages; |
| 162 | freepages -= num_physpages >> 4; |
| 163 | freepages -= (newbrk-oldbrk) >> PAGE_SHIFT; |
| 164 | if (freepages < 0) |
| 165 | goto out; |
| 166 | /* Ok, we have probably got enough memory - let it rip. */ |
| 167 | current->mm->brk = brk; |
| 168 | do_brk(oldbrk, newbrk-oldbrk); |
| 169 | retval = 0; |
| 170 | out: |
| 171 | up_write(¤t->mm->mmap_sem); |
| 172 | return retval; |
| 173 | } |
| 174 | |
| 175 | asmlinkage u32 sunos_sbrk(int increment) |
| 176 | { |
| 177 | int error, oldbrk; |
| 178 | |
| 179 | /* This should do it hopefully... */ |
| 180 | oldbrk = (int)current->mm->brk; |
| 181 | error = sunos_brk(((int) current->mm->brk) + increment); |
| 182 | if (!error) |
| 183 | error = oldbrk; |
| 184 | return error; |
| 185 | } |
| 186 | |
| 187 | asmlinkage u32 sunos_sstk(int increment) |
| 188 | { |
| 189 | printk("%s: Call to sunos_sstk(increment<%d>) is unsupported\n", |
| 190 | current->comm, increment); |
| 191 | |
| 192 | return (u32)-1; |
| 193 | } |
| 194 | |
| 195 | /* Give hints to the kernel as to what paging strategy to use... |
| 196 | * Completely bogus, don't remind me. |
| 197 | */ |
| 198 | #define VA_NORMAL 0 /* Normal vm usage expected */ |
| 199 | #define VA_ABNORMAL 1 /* Abnormal/random vm usage probable */ |
| 200 | #define VA_SEQUENTIAL 2 /* Accesses will be of a sequential nature */ |
| 201 | #define VA_INVALIDATE 3 /* Page table entries should be flushed ??? */ |
| 202 | static char *vstrings[] = { |
| 203 | "VA_NORMAL", |
| 204 | "VA_ABNORMAL", |
| 205 | "VA_SEQUENTIAL", |
| 206 | "VA_INVALIDATE", |
| 207 | }; |
| 208 | |
| 209 | asmlinkage void sunos_vadvise(u32 strategy) |
| 210 | { |
| 211 | static int count; |
| 212 | |
| 213 | /* I wanna see who uses this... */ |
| 214 | if (count++ < 5) |
| 215 | printk("%s: Advises us to use %s paging strategy\n", |
| 216 | current->comm, |
| 217 | strategy <= 3 ? vstrings[strategy] : "BOGUS"); |
| 218 | } |
| 219 | |
| 220 | /* This just wants the soft limit (ie. rlim_cur element) of the RLIMIT_NOFILE |
| 221 | * resource limit and is for backwards compatibility with older sunos |
| 222 | * revs. |
| 223 | */ |
| 224 | asmlinkage int sunos_getdtablesize(void) |
| 225 | { |
| 226 | return SUNOS_NR_OPEN; |
| 227 | } |
| 228 | |
| 229 | |
| 230 | #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) |
| 231 | |
| 232 | asmlinkage u32 sunos_sigblock(u32 blk_mask) |
| 233 | { |
| 234 | u32 old; |
| 235 | |
| 236 | spin_lock_irq(¤t->sighand->siglock); |
| 237 | old = (u32) current->blocked.sig[0]; |
| 238 | current->blocked.sig[0] |= (blk_mask & _BLOCKABLE); |
| 239 | recalc_sigpending(); |
| 240 | spin_unlock_irq(¤t->sighand->siglock); |
| 241 | return old; |
| 242 | } |
| 243 | |
| 244 | asmlinkage u32 sunos_sigsetmask(u32 newmask) |
| 245 | { |
| 246 | u32 retval; |
| 247 | |
| 248 | spin_lock_irq(¤t->sighand->siglock); |
| 249 | retval = (u32) current->blocked.sig[0]; |
| 250 | current->blocked.sig[0] = (newmask & _BLOCKABLE); |
| 251 | recalc_sigpending(); |
| 252 | spin_unlock_irq(¤t->sighand->siglock); |
| 253 | return retval; |
| 254 | } |
| 255 | |
| 256 | /* SunOS getdents is very similar to the newer Linux (iBCS2 compliant) */ |
| 257 | /* getdents system call, the format of the structure just has a different */ |
| 258 | /* layout (d_off+d_ino instead of d_ino+d_off) */ |
| 259 | struct sunos_dirent { |
| 260 | s32 d_off; |
| 261 | u32 d_ino; |
| 262 | u16 d_reclen; |
| 263 | u16 d_namlen; |
| 264 | char d_name[1]; |
| 265 | }; |
| 266 | |
| 267 | struct sunos_dirent_callback { |
| 268 | struct sunos_dirent __user *curr; |
| 269 | struct sunos_dirent __user *previous; |
| 270 | int count; |
| 271 | int error; |
| 272 | }; |
| 273 | |
| 274 | #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de))) |
| 275 | #define ROUND_UP(x) (((x)+sizeof(s32)-1) & ~(sizeof(s32)-1)) |
| 276 | |
| 277 | static int sunos_filldir(void * __buf, const char * name, int namlen, |
| 278 | loff_t offset, ino_t ino, unsigned int d_type) |
| 279 | { |
| 280 | struct sunos_dirent __user *dirent; |
| 281 | struct sunos_dirent_callback * buf = (struct sunos_dirent_callback *) __buf; |
| 282 | int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1); |
| 283 | |
| 284 | buf->error = -EINVAL; /* only used if we fail.. */ |
| 285 | if (reclen > buf->count) |
| 286 | return -EINVAL; |
| 287 | dirent = buf->previous; |
| 288 | if (dirent) |
| 289 | put_user(offset, &dirent->d_off); |
| 290 | dirent = buf->curr; |
| 291 | buf->previous = dirent; |
| 292 | put_user(ino, &dirent->d_ino); |
| 293 | put_user(namlen, &dirent->d_namlen); |
| 294 | put_user(reclen, &dirent->d_reclen); |
| 295 | if (copy_to_user(dirent->d_name, name, namlen)) |
| 296 | return -EFAULT; |
| 297 | put_user(0, dirent->d_name + namlen); |
| 298 | dirent = (void __user *) dirent + reclen; |
| 299 | buf->curr = dirent; |
| 300 | buf->count -= reclen; |
| 301 | return 0; |
| 302 | } |
| 303 | |
| 304 | asmlinkage int sunos_getdents(unsigned int fd, void __user *dirent, int cnt) |
| 305 | { |
| 306 | struct file * file; |
| 307 | struct sunos_dirent __user *lastdirent; |
| 308 | struct sunos_dirent_callback buf; |
| 309 | int error = -EBADF; |
| 310 | |
| 311 | if (fd >= SUNOS_NR_OPEN) |
| 312 | goto out; |
| 313 | |
| 314 | file = fget(fd); |
| 315 | if (!file) |
| 316 | goto out; |
| 317 | |
| 318 | error = -EINVAL; |
| 319 | if (cnt < (sizeof(struct sunos_dirent) + 255)) |
| 320 | goto out_putf; |
| 321 | |
| 322 | buf.curr = (struct sunos_dirent __user *) dirent; |
| 323 | buf.previous = NULL; |
| 324 | buf.count = cnt; |
| 325 | buf.error = 0; |
| 326 | |
| 327 | error = vfs_readdir(file, sunos_filldir, &buf); |
| 328 | if (error < 0) |
| 329 | goto out_putf; |
| 330 | |
| 331 | lastdirent = buf.previous; |
| 332 | error = buf.error; |
| 333 | if (lastdirent) { |
| 334 | put_user(file->f_pos, &lastdirent->d_off); |
| 335 | error = cnt - buf.count; |
| 336 | } |
| 337 | |
| 338 | out_putf: |
| 339 | fput(file); |
| 340 | out: |
| 341 | return error; |
| 342 | } |
| 343 | |
| 344 | /* Old sunos getdirentries, severely broken compatibility stuff here. */ |
| 345 | struct sunos_direntry { |
| 346 | u32 d_ino; |
| 347 | u16 d_reclen; |
| 348 | u16 d_namlen; |
| 349 | char d_name[1]; |
| 350 | }; |
| 351 | |
| 352 | struct sunos_direntry_callback { |
| 353 | struct sunos_direntry __user *curr; |
| 354 | struct sunos_direntry __user *previous; |
| 355 | int count; |
| 356 | int error; |
| 357 | }; |
| 358 | |
| 359 | static int sunos_filldirentry(void * __buf, const char * name, int namlen, |
| 360 | loff_t offset, ino_t ino, unsigned int d_type) |
| 361 | { |
| 362 | struct sunos_direntry __user *dirent; |
| 363 | struct sunos_direntry_callback * buf = |
| 364 | (struct sunos_direntry_callback *) __buf; |
| 365 | int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1); |
| 366 | |
| 367 | buf->error = -EINVAL; /* only used if we fail.. */ |
| 368 | if (reclen > buf->count) |
| 369 | return -EINVAL; |
| 370 | dirent = buf->previous; |
| 371 | dirent = buf->curr; |
| 372 | buf->previous = dirent; |
| 373 | put_user(ino, &dirent->d_ino); |
| 374 | put_user(namlen, &dirent->d_namlen); |
| 375 | put_user(reclen, &dirent->d_reclen); |
| 376 | if (copy_to_user(dirent->d_name, name, namlen)) |
| 377 | return -EFAULT; |
| 378 | put_user(0, dirent->d_name + namlen); |
| 379 | dirent = (void __user *) dirent + reclen; |
| 380 | buf->curr = dirent; |
| 381 | buf->count -= reclen; |
| 382 | return 0; |
| 383 | } |
| 384 | |
| 385 | asmlinkage int sunos_getdirentries(unsigned int fd, |
| 386 | void __user *dirent, |
| 387 | int cnt, |
| 388 | unsigned int __user *basep) |
| 389 | { |
| 390 | struct file * file; |
| 391 | struct sunos_direntry __user *lastdirent; |
| 392 | int error = -EBADF; |
| 393 | struct sunos_direntry_callback buf; |
| 394 | |
| 395 | if (fd >= SUNOS_NR_OPEN) |
| 396 | goto out; |
| 397 | |
| 398 | file = fget(fd); |
| 399 | if (!file) |
| 400 | goto out; |
| 401 | |
| 402 | error = -EINVAL; |
| 403 | if (cnt < (sizeof(struct sunos_direntry) + 255)) |
| 404 | goto out_putf; |
| 405 | |
| 406 | buf.curr = (struct sunos_direntry __user *) dirent; |
| 407 | buf.previous = NULL; |
| 408 | buf.count = cnt; |
| 409 | buf.error = 0; |
| 410 | |
| 411 | error = vfs_readdir(file, sunos_filldirentry, &buf); |
| 412 | if (error < 0) |
| 413 | goto out_putf; |
| 414 | |
| 415 | lastdirent = buf.previous; |
| 416 | error = buf.error; |
| 417 | if (lastdirent) { |
| 418 | put_user(file->f_pos, basep); |
| 419 | error = cnt - buf.count; |
| 420 | } |
| 421 | |
| 422 | out_putf: |
| 423 | fput(file); |
| 424 | out: |
| 425 | return error; |
| 426 | } |
| 427 | |
| 428 | struct sunos_utsname { |
| 429 | char sname[9]; |
| 430 | char nname[9]; |
| 431 | char nnext[56]; |
| 432 | char rel[9]; |
| 433 | char ver[9]; |
| 434 | char mach[9]; |
| 435 | }; |
| 436 | |
| 437 | asmlinkage int sunos_uname(struct sunos_utsname __user *name) |
| 438 | { |
| 439 | int ret; |
| 440 | |
| 441 | down_read(&uts_sem); |
| 442 | ret = copy_to_user(&name->sname[0], &system_utsname.sysname[0], |
| 443 | sizeof(name->sname) - 1); |
| 444 | ret |= copy_to_user(&name->nname[0], &system_utsname.nodename[0], |
| 445 | sizeof(name->nname) - 1); |
| 446 | ret |= put_user('\0', &name->nname[8]); |
| 447 | ret |= copy_to_user(&name->rel[0], &system_utsname.release[0], |
| 448 | sizeof(name->rel) - 1); |
| 449 | ret |= copy_to_user(&name->ver[0], &system_utsname.version[0], |
| 450 | sizeof(name->ver) - 1); |
| 451 | ret |= copy_to_user(&name->mach[0], &system_utsname.machine[0], |
| 452 | sizeof(name->mach) - 1); |
| 453 | up_read(&uts_sem); |
| 454 | return (ret ? -EFAULT : 0); |
| 455 | } |
| 456 | |
| 457 | asmlinkage int sunos_nosys(void) |
| 458 | { |
| 459 | struct pt_regs *regs; |
| 460 | siginfo_t info; |
| 461 | static int cnt; |
| 462 | |
| 463 | regs = current_thread_info()->kregs; |
| 464 | if (test_thread_flag(TIF_32BIT)) { |
| 465 | regs->tpc &= 0xffffffff; |
| 466 | regs->tnpc &= 0xffffffff; |
| 467 | } |
| 468 | info.si_signo = SIGSYS; |
| 469 | info.si_errno = 0; |
| 470 | info.si_code = __SI_FAULT|0x100; |
| 471 | info.si_addr = (void __user *)regs->tpc; |
| 472 | info.si_trapno = regs->u_regs[UREG_G1]; |
| 473 | send_sig_info(SIGSYS, &info, current); |
| 474 | if (cnt++ < 4) { |
| 475 | printk("Process makes ni_syscall number %d, register dump:\n", |
| 476 | (int) regs->u_regs[UREG_G1]); |
| 477 | show_regs(regs); |
| 478 | } |
| 479 | return -ENOSYS; |
| 480 | } |
| 481 | |
| 482 | /* This is not a real and complete implementation yet, just to keep |
| 483 | * the easy SunOS binaries happy. |
| 484 | */ |
| 485 | asmlinkage int sunos_fpathconf(int fd, int name) |
| 486 | { |
| 487 | int ret; |
| 488 | |
| 489 | switch(name) { |
| 490 | case _PCONF_LINK: |
| 491 | ret = LINK_MAX; |
| 492 | break; |
| 493 | case _PCONF_CANON: |
| 494 | ret = MAX_CANON; |
| 495 | break; |
| 496 | case _PCONF_INPUT: |
| 497 | ret = MAX_INPUT; |
| 498 | break; |
| 499 | case _PCONF_NAME: |
| 500 | ret = NAME_MAX; |
| 501 | break; |
| 502 | case _PCONF_PATH: |
| 503 | ret = PATH_MAX; |
| 504 | break; |
| 505 | case _PCONF_PIPE: |
| 506 | ret = PIPE_BUF; |
| 507 | break; |
| 508 | case _PCONF_CHRESTRICT: /* XXX Investigate XXX */ |
| 509 | ret = 1; |
| 510 | break; |
| 511 | case _PCONF_NOTRUNC: /* XXX Investigate XXX */ |
| 512 | case _PCONF_VDISABLE: |
| 513 | ret = 0; |
| 514 | break; |
| 515 | default: |
| 516 | ret = -EINVAL; |
| 517 | break; |
| 518 | } |
| 519 | return ret; |
| 520 | } |
| 521 | |
| 522 | asmlinkage int sunos_pathconf(u32 u_path, int name) |
| 523 | { |
| 524 | int ret; |
| 525 | |
| 526 | ret = sunos_fpathconf(0, name); /* XXX cheese XXX */ |
| 527 | return ret; |
| 528 | } |
| 529 | |
| 530 | asmlinkage int sunos_select(int width, u32 inp, u32 outp, u32 exp, u32 tvp_x) |
| 531 | { |
| 532 | int ret; |
| 533 | |
| 534 | /* SunOS binaries expect that select won't change the tvp contents */ |
| 535 | ret = compat_sys_select(width, compat_ptr(inp), compat_ptr(outp), |
| 536 | compat_ptr(exp), compat_ptr(tvp_x)); |
| 537 | if (ret == -EINTR && tvp_x) { |
| 538 | struct compat_timeval __user *tvp = compat_ptr(tvp_x); |
| 539 | time_t sec, usec; |
| 540 | |
| 541 | __get_user(sec, &tvp->tv_sec); |
| 542 | __get_user(usec, &tvp->tv_usec); |
| 543 | if (sec == 0 && usec == 0) |
| 544 | ret = 0; |
| 545 | } |
| 546 | return ret; |
| 547 | } |
| 548 | |
| 549 | asmlinkage void sunos_nop(void) |
| 550 | { |
| 551 | return; |
| 552 | } |
| 553 | |
| 554 | #if 0 /* This code doesn't translate user pointers correctly, |
| 555 | * disable for now. -DaveM |
| 556 | */ |
| 557 | |
| 558 | /* XXXXXXXXXX SunOS mount/umount. XXXXXXXXXXX */ |
| 559 | #define SMNT_RDONLY 1 |
| 560 | #define SMNT_NOSUID 2 |
| 561 | #define SMNT_NEWTYPE 4 |
| 562 | #define SMNT_GRPID 8 |
| 563 | #define SMNT_REMOUNT 16 |
| 564 | #define SMNT_NOSUB 32 |
| 565 | #define SMNT_MULTI 64 |
| 566 | #define SMNT_SYS5 128 |
| 567 | |
| 568 | struct sunos_fh_t { |
| 569 | char fh_data [NFS_FHSIZE]; |
| 570 | }; |
| 571 | |
| 572 | struct sunos_nfs_mount_args { |
| 573 | struct sockaddr_in *addr; /* file server address */ |
| 574 | struct nfs_fh *fh; /* File handle to be mounted */ |
| 575 | int flags; /* flags */ |
| 576 | int wsize; /* write size in bytes */ |
| 577 | int rsize; /* read size in bytes */ |
| 578 | int timeo; /* initial timeout in .1 secs */ |
| 579 | int retrans; /* times to retry send */ |
| 580 | char *hostname; /* server's hostname */ |
| 581 | int acregmin; /* attr cache file min secs */ |
| 582 | int acregmax; /* attr cache file max secs */ |
| 583 | int acdirmin; /* attr cache dir min secs */ |
| 584 | int acdirmax; /* attr cache dir max secs */ |
| 585 | char *netname; /* server's netname */ |
| 586 | }; |
| 587 | |
| 588 | |
| 589 | /* Bind the socket on a local reserved port and connect it to the |
| 590 | * remote server. This on Linux/i386 is done by the mount program, |
| 591 | * not by the kernel. |
| 592 | */ |
| 593 | /* XXXXXXXXXXXXXXXXXXXX */ |
| 594 | static int |
| 595 | sunos_nfs_get_server_fd (int fd, struct sockaddr_in *addr) |
| 596 | { |
| 597 | struct sockaddr_in local; |
| 598 | struct sockaddr_in server; |
| 599 | int try_port; |
| 600 | int ret; |
| 601 | struct socket *socket; |
| 602 | struct inode *inode; |
| 603 | struct file *file; |
| 604 | |
| 605 | file = fget(fd); |
| 606 | if (!file) |
| 607 | return 0; |
| 608 | |
| 609 | inode = file->f_dentry->d_inode; |
| 610 | |
| 611 | socket = SOCKET_I(inode); |
| 612 | local.sin_family = AF_INET; |
| 613 | local.sin_addr.s_addr = INADDR_ANY; |
| 614 | |
| 615 | /* IPPORT_RESERVED = 1024, can't find the definition in the kernel */ |
| 616 | try_port = 1024; |
| 617 | do { |
| 618 | local.sin_port = htons (--try_port); |
| 619 | ret = socket->ops->bind(socket, (struct sockaddr*)&local, |
| 620 | sizeof(local)); |
| 621 | } while (ret && try_port > (1024 / 2)); |
| 622 | |
| 623 | if (ret) { |
| 624 | fput(file); |
| 625 | return 0; |
| 626 | } |
| 627 | |
| 628 | server.sin_family = AF_INET; |
| 629 | server.sin_addr = addr->sin_addr; |
| 630 | server.sin_port = NFS_PORT; |
| 631 | |
| 632 | /* Call sys_connect */ |
| 633 | ret = socket->ops->connect (socket, (struct sockaddr *) &server, |
| 634 | sizeof (server), file->f_flags); |
| 635 | fput(file); |
| 636 | if (ret < 0) |
| 637 | return 0; |
| 638 | return 1; |
| 639 | } |
| 640 | |
| 641 | /* XXXXXXXXXXXXXXXXXXXX */ |
| 642 | static int get_default (int value, int def_value) |
| 643 | { |
| 644 | if (value) |
| 645 | return value; |
| 646 | else |
| 647 | return def_value; |
| 648 | } |
| 649 | |
| 650 | /* XXXXXXXXXXXXXXXXXXXX */ |
| 651 | static int sunos_nfs_mount(char *dir_name, int linux_flags, void __user *data) |
| 652 | { |
| 653 | int server_fd, err; |
| 654 | char *the_name, *mount_page; |
| 655 | struct nfs_mount_data linux_nfs_mount; |
| 656 | struct sunos_nfs_mount_args sunos_mount; |
| 657 | |
| 658 | /* Ok, here comes the fun part: Linux's nfs mount needs a |
| 659 | * socket connection to the server, but SunOS mount does not |
| 660 | * require this, so we use the information on the destination |
| 661 | * address to create a socket and bind it to a reserved |
| 662 | * port on this system |
| 663 | */ |
| 664 | if (copy_from_user(&sunos_mount, data, sizeof(sunos_mount))) |
| 665 | return -EFAULT; |
| 666 | |
| 667 | server_fd = sys_socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP); |
| 668 | if (server_fd < 0) |
| 669 | return -ENXIO; |
| 670 | |
| 671 | if (copy_from_user(&linux_nfs_mount.addr, sunos_mount.addr, |
| 672 | sizeof(*sunos_mount.addr)) || |
| 673 | copy_from_user(&linux_nfs_mount.root, sunos_mount.fh, |
| 674 | sizeof(*sunos_mount.fh))) { |
| 675 | sys_close (server_fd); |
| 676 | return -EFAULT; |
| 677 | } |
| 678 | |
| 679 | if (!sunos_nfs_get_server_fd (server_fd, &linux_nfs_mount.addr)){ |
| 680 | sys_close (server_fd); |
| 681 | return -ENXIO; |
| 682 | } |
| 683 | |
| 684 | /* Now, bind it to a locally reserved port */ |
| 685 | linux_nfs_mount.version = NFS_MOUNT_VERSION; |
| 686 | linux_nfs_mount.flags = sunos_mount.flags; |
| 687 | linux_nfs_mount.fd = server_fd; |
| 688 | |
| 689 | linux_nfs_mount.rsize = get_default (sunos_mount.rsize, 8192); |
| 690 | linux_nfs_mount.wsize = get_default (sunos_mount.wsize, 8192); |
| 691 | linux_nfs_mount.timeo = get_default (sunos_mount.timeo, 10); |
| 692 | linux_nfs_mount.retrans = sunos_mount.retrans; |
| 693 | |
| 694 | linux_nfs_mount.acregmin = sunos_mount.acregmin; |
| 695 | linux_nfs_mount.acregmax = sunos_mount.acregmax; |
| 696 | linux_nfs_mount.acdirmin = sunos_mount.acdirmin; |
| 697 | linux_nfs_mount.acdirmax = sunos_mount.acdirmax; |
| 698 | |
| 699 | the_name = getname(sunos_mount.hostname); |
| 700 | if (IS_ERR(the_name)) |
| 701 | return PTR_ERR(the_name); |
| 702 | |
| 703 | strlcpy(linux_nfs_mount.hostname, the_name, |
| 704 | sizeof(linux_nfs_mount.hostname)); |
| 705 | putname (the_name); |
| 706 | |
| 707 | mount_page = (char *) get_zeroed_page(GFP_KERNEL); |
| 708 | if (!mount_page) |
| 709 | return -ENOMEM; |
| 710 | |
| 711 | memcpy(mount_page, &linux_nfs_mount, sizeof(linux_nfs_mount)); |
| 712 | |
| 713 | err = do_mount("", dir_name, "nfs", linux_flags, mount_page); |
| 714 | |
| 715 | free_page((unsigned long) mount_page); |
| 716 | return err; |
| 717 | } |
| 718 | |
| 719 | /* XXXXXXXXXXXXXXXXXXXX */ |
| 720 | asmlinkage int |
| 721 | sunos_mount(char *type, char *dir, int flags, void *data) |
| 722 | { |
| 723 | int linux_flags = 0; |
| 724 | int ret = -EINVAL; |
| 725 | char *dev_fname = 0; |
| 726 | char *dir_page, *type_page; |
| 727 | |
| 728 | if (!capable (CAP_SYS_ADMIN)) |
| 729 | return -EPERM; |
| 730 | |
| 731 | /* We don't handle the integer fs type */ |
| 732 | if ((flags & SMNT_NEWTYPE) == 0) |
| 733 | goto out; |
| 734 | |
| 735 | /* Do not allow for those flags we don't support */ |
| 736 | if (flags & (SMNT_GRPID|SMNT_NOSUB|SMNT_MULTI|SMNT_SYS5)) |
| 737 | goto out; |
| 738 | |
| 739 | if (flags & SMNT_REMOUNT) |
| 740 | linux_flags |= MS_REMOUNT; |
| 741 | if (flags & SMNT_RDONLY) |
| 742 | linux_flags |= MS_RDONLY; |
| 743 | if (flags & SMNT_NOSUID) |
| 744 | linux_flags |= MS_NOSUID; |
| 745 | |
| 746 | dir_page = getname(dir); |
| 747 | ret = PTR_ERR(dir_page); |
| 748 | if (IS_ERR(dir_page)) |
| 749 | goto out; |
| 750 | |
| 751 | type_page = getname(type); |
| 752 | ret = PTR_ERR(type_page); |
| 753 | if (IS_ERR(type_page)) |
| 754 | goto out1; |
| 755 | |
| 756 | if (strcmp(type_page, "ext2") == 0) { |
| 757 | dev_fname = getname(data); |
| 758 | } else if (strcmp(type_page, "iso9660") == 0) { |
| 759 | dev_fname = getname(data); |
| 760 | } else if (strcmp(type_page, "minix") == 0) { |
| 761 | dev_fname = getname(data); |
| 762 | } else if (strcmp(type_page, "nfs") == 0) { |
| 763 | ret = sunos_nfs_mount (dir_page, flags, data); |
| 764 | goto out2; |
| 765 | } else if (strcmp(type_page, "ufs") == 0) { |
| 766 | printk("Warning: UFS filesystem mounts unsupported.\n"); |
| 767 | ret = -ENODEV; |
| 768 | goto out2; |
| 769 | } else if (strcmp(type_page, "proc")) { |
| 770 | ret = -ENODEV; |
| 771 | goto out2; |
| 772 | } |
| 773 | ret = PTR_ERR(dev_fname); |
| 774 | if (IS_ERR(dev_fname)) |
| 775 | goto out2; |
| 776 | lock_kernel(); |
| 777 | ret = do_mount(dev_fname, dir_page, type_page, linux_flags, NULL); |
| 778 | unlock_kernel(); |
| 779 | if (dev_fname) |
| 780 | putname(dev_fname); |
| 781 | out2: |
| 782 | putname(type_page); |
| 783 | out1: |
| 784 | putname(dir_page); |
| 785 | out: |
| 786 | return ret; |
| 787 | } |
| 788 | #endif |
| 789 | |
| 790 | asmlinkage int sunos_setpgrp(pid_t pid, pid_t pgid) |
| 791 | { |
| 792 | int ret; |
| 793 | |
| 794 | /* So stupid... */ |
| 795 | if ((!pid || pid == current->pid) && |
| 796 | !pgid) { |
| 797 | sys_setsid(); |
| 798 | ret = 0; |
| 799 | } else { |
| 800 | ret = sys_setpgid(pid, pgid); |
| 801 | } |
| 802 | return ret; |
| 803 | } |
| 804 | |
| 805 | /* So stupid... */ |
| 806 | extern long compat_sys_wait4(compat_pid_t, compat_uint_t __user *, int, |
| 807 | struct compat_rusage __user *); |
| 808 | |
| 809 | asmlinkage int sunos_wait4(compat_pid_t pid, compat_uint_t __user *stat_addr, int options, struct compat_rusage __user *ru) |
| 810 | { |
| 811 | int ret; |
| 812 | |
| 813 | ret = compat_sys_wait4((pid ? pid : ((compat_pid_t)-1)), |
| 814 | stat_addr, options, ru); |
| 815 | return ret; |
| 816 | } |
| 817 | |
| 818 | extern int kill_pg(int, int, int); |
| 819 | asmlinkage int sunos_killpg(int pgrp, int sig) |
| 820 | { |
| 821 | return kill_pg(pgrp, sig, 0); |
| 822 | } |
| 823 | |
| 824 | asmlinkage int sunos_audit(void) |
| 825 | { |
| 826 | printk ("sys_audit\n"); |
| 827 | return -1; |
| 828 | } |
| 829 | |
| 830 | asmlinkage u32 sunos_gethostid(void) |
| 831 | { |
| 832 | u32 ret; |
| 833 | |
| 834 | ret = (((u32)idprom->id_machtype << 24) | ((u32)idprom->id_sernum)); |
| 835 | |
| 836 | return ret; |
| 837 | } |
| 838 | |
| 839 | /* sysconf options, for SunOS compatibility */ |
| 840 | #define _SC_ARG_MAX 1 |
| 841 | #define _SC_CHILD_MAX 2 |
| 842 | #define _SC_CLK_TCK 3 |
| 843 | #define _SC_NGROUPS_MAX 4 |
| 844 | #define _SC_OPEN_MAX 5 |
| 845 | #define _SC_JOB_CONTROL 6 |
| 846 | #define _SC_SAVED_IDS 7 |
| 847 | #define _SC_VERSION 8 |
| 848 | |
| 849 | asmlinkage s32 sunos_sysconf (int name) |
| 850 | { |
| 851 | s32 ret; |
| 852 | |
| 853 | switch (name){ |
| 854 | case _SC_ARG_MAX: |
| 855 | ret = ARG_MAX; |
| 856 | break; |
| 857 | case _SC_CHILD_MAX: |
David S. Miller | 597d1f0 | 2005-12-22 23:04:39 -0800 | [diff] [blame] | 858 | ret = -1; /* no limit */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | break; |
| 860 | case _SC_CLK_TCK: |
| 861 | ret = HZ; |
| 862 | break; |
| 863 | case _SC_NGROUPS_MAX: |
| 864 | ret = NGROUPS_MAX; |
| 865 | break; |
| 866 | case _SC_OPEN_MAX: |
| 867 | ret = OPEN_MAX; |
| 868 | break; |
| 869 | case _SC_JOB_CONTROL: |
| 870 | ret = 1; /* yes, we do support job control */ |
| 871 | break; |
| 872 | case _SC_SAVED_IDS: |
| 873 | ret = 1; /* yes, we do support saved uids */ |
| 874 | break; |
| 875 | case _SC_VERSION: |
| 876 | /* mhm, POSIX_VERSION is in /usr/include/unistd.h |
| 877 | * should it go on /usr/include/linux? |
| 878 | */ |
| 879 | ret = 199009; |
| 880 | break; |
| 881 | default: |
| 882 | ret = -1; |
| 883 | break; |
| 884 | }; |
| 885 | return ret; |
| 886 | } |
| 887 | |
| 888 | asmlinkage int sunos_semsys(int op, u32 arg1, u32 arg2, u32 arg3, void __user *ptr) |
| 889 | { |
| 890 | union semun arg4; |
| 891 | int ret; |
| 892 | |
| 893 | switch (op) { |
| 894 | case 0: |
| 895 | /* Most arguments match on a 1:1 basis but cmd doesn't */ |
| 896 | switch(arg3) { |
| 897 | case 4: |
| 898 | arg3=GETPID; break; |
| 899 | case 5: |
| 900 | arg3=GETVAL; break; |
| 901 | case 6: |
| 902 | arg3=GETALL; break; |
| 903 | case 3: |
| 904 | arg3=GETNCNT; break; |
| 905 | case 7: |
| 906 | arg3=GETZCNT; break; |
| 907 | case 8: |
| 908 | arg3=SETVAL; break; |
| 909 | case 9: |
| 910 | arg3=SETALL; break; |
| 911 | } |
| 912 | /* sys_semctl(): */ |
| 913 | /* value to modify semaphore to */ |
| 914 | arg4.__pad = ptr; |
| 915 | ret = sys_semctl((int)arg1, (int)arg2, (int)arg3, arg4); |
| 916 | break; |
| 917 | case 1: |
| 918 | /* sys_semget(): */ |
| 919 | ret = sys_semget((key_t)arg1, (int)arg2, (int)arg3); |
| 920 | break; |
| 921 | case 2: |
| 922 | /* sys_semop(): */ |
| 923 | ret = sys_semop((int)arg1, (struct sembuf __user *)(unsigned long)arg2, |
| 924 | (unsigned int) arg3); |
| 925 | break; |
| 926 | default: |
| 927 | ret = -EINVAL; |
| 928 | break; |
| 929 | }; |
| 930 | return ret; |
| 931 | } |
| 932 | |
| 933 | struct msgbuf32 { |
| 934 | s32 mtype; |
| 935 | char mtext[1]; |
| 936 | }; |
| 937 | |
| 938 | struct ipc_perm32 |
| 939 | { |
| 940 | key_t key; |
| 941 | compat_uid_t uid; |
| 942 | compat_gid_t gid; |
| 943 | compat_uid_t cuid; |
| 944 | compat_gid_t cgid; |
| 945 | compat_mode_t mode; |
| 946 | unsigned short seq; |
| 947 | }; |
| 948 | |
| 949 | struct msqid_ds32 |
| 950 | { |
| 951 | struct ipc_perm32 msg_perm; |
| 952 | u32 msg_first; |
| 953 | u32 msg_last; |
| 954 | compat_time_t msg_stime; |
| 955 | compat_time_t msg_rtime; |
| 956 | compat_time_t msg_ctime; |
| 957 | u32 wwait; |
| 958 | u32 rwait; |
| 959 | unsigned short msg_cbytes; |
| 960 | unsigned short msg_qnum; |
| 961 | unsigned short msg_qbytes; |
| 962 | compat_ipc_pid_t msg_lspid; |
| 963 | compat_ipc_pid_t msg_lrpid; |
| 964 | }; |
| 965 | |
| 966 | static inline int sunos_msqid_get(struct msqid_ds32 __user *user, |
| 967 | struct msqid_ds *kern) |
| 968 | { |
| 969 | if (get_user(kern->msg_perm.key, &user->msg_perm.key) || |
| 970 | __get_user(kern->msg_perm.uid, &user->msg_perm.uid) || |
| 971 | __get_user(kern->msg_perm.gid, &user->msg_perm.gid) || |
| 972 | __get_user(kern->msg_perm.cuid, &user->msg_perm.cuid) || |
| 973 | __get_user(kern->msg_perm.cgid, &user->msg_perm.cgid) || |
| 974 | __get_user(kern->msg_stime, &user->msg_stime) || |
| 975 | __get_user(kern->msg_rtime, &user->msg_rtime) || |
| 976 | __get_user(kern->msg_ctime, &user->msg_ctime) || |
| 977 | __get_user(kern->msg_ctime, &user->msg_cbytes) || |
| 978 | __get_user(kern->msg_ctime, &user->msg_qnum) || |
| 979 | __get_user(kern->msg_ctime, &user->msg_qbytes) || |
| 980 | __get_user(kern->msg_ctime, &user->msg_lspid) || |
| 981 | __get_user(kern->msg_ctime, &user->msg_lrpid)) |
| 982 | return -EFAULT; |
| 983 | return 0; |
| 984 | } |
| 985 | |
| 986 | static inline int sunos_msqid_put(struct msqid_ds32 __user *user, |
| 987 | struct msqid_ds *kern) |
| 988 | { |
| 989 | if (put_user(kern->msg_perm.key, &user->msg_perm.key) || |
| 990 | __put_user(kern->msg_perm.uid, &user->msg_perm.uid) || |
| 991 | __put_user(kern->msg_perm.gid, &user->msg_perm.gid) || |
| 992 | __put_user(kern->msg_perm.cuid, &user->msg_perm.cuid) || |
| 993 | __put_user(kern->msg_perm.cgid, &user->msg_perm.cgid) || |
| 994 | __put_user(kern->msg_stime, &user->msg_stime) || |
| 995 | __put_user(kern->msg_rtime, &user->msg_rtime) || |
| 996 | __put_user(kern->msg_ctime, &user->msg_ctime) || |
| 997 | __put_user(kern->msg_ctime, &user->msg_cbytes) || |
| 998 | __put_user(kern->msg_ctime, &user->msg_qnum) || |
| 999 | __put_user(kern->msg_ctime, &user->msg_qbytes) || |
| 1000 | __put_user(kern->msg_ctime, &user->msg_lspid) || |
| 1001 | __put_user(kern->msg_ctime, &user->msg_lrpid)) |
| 1002 | return -EFAULT; |
| 1003 | return 0; |
| 1004 | } |
| 1005 | |
| 1006 | static inline int sunos_msgbuf_get(struct msgbuf32 __user *user, struct msgbuf *kern, int len) |
| 1007 | { |
| 1008 | if (get_user(kern->mtype, &user->mtype) || |
| 1009 | __copy_from_user(kern->mtext, &user->mtext, len)) |
| 1010 | return -EFAULT; |
| 1011 | return 0; |
| 1012 | } |
| 1013 | |
| 1014 | static inline int sunos_msgbuf_put(struct msgbuf32 __user *user, struct msgbuf *kern, int len) |
| 1015 | { |
| 1016 | if (put_user(kern->mtype, &user->mtype) || |
| 1017 | __copy_to_user(user->mtext, kern->mtext, len)) |
| 1018 | return -EFAULT; |
| 1019 | return 0; |
| 1020 | } |
| 1021 | |
| 1022 | asmlinkage int sunos_msgsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 arg4) |
| 1023 | { |
| 1024 | struct sparc_stackf32 __user *sp; |
| 1025 | struct msqid_ds kds; |
| 1026 | struct msgbuf *kmbuf; |
| 1027 | mm_segment_t old_fs = get_fs(); |
| 1028 | u32 arg5; |
| 1029 | int rval; |
| 1030 | |
| 1031 | switch(op) { |
| 1032 | case 0: |
| 1033 | rval = sys_msgget((key_t)arg1, (int)arg2); |
| 1034 | break; |
| 1035 | case 1: |
| 1036 | if (!sunos_msqid_get((struct msqid_ds32 __user *)(unsigned long)arg3, &kds)) { |
| 1037 | set_fs(KERNEL_DS); |
| 1038 | rval = sys_msgctl((int)arg1, (int)arg2, |
| 1039 | (struct msqid_ds __user *)(unsigned long)arg3); |
| 1040 | set_fs(old_fs); |
| 1041 | if (!rval) |
| 1042 | rval = sunos_msqid_put((struct msqid_ds32 __user *)(unsigned long)arg3, |
| 1043 | &kds); |
| 1044 | } else |
| 1045 | rval = -EFAULT; |
| 1046 | break; |
| 1047 | case 2: |
| 1048 | rval = -EFAULT; |
| 1049 | kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3, |
| 1050 | GFP_KERNEL); |
| 1051 | if (!kmbuf) |
| 1052 | break; |
| 1053 | sp = (struct sparc_stackf32 __user *) |
| 1054 | (current_thread_info()->kregs->u_regs[UREG_FP] & 0xffffffffUL); |
| 1055 | if (get_user(arg5, &sp->xxargs[0])) { |
| 1056 | rval = -EFAULT; |
| 1057 | kfree(kmbuf); |
| 1058 | break; |
| 1059 | } |
| 1060 | set_fs(KERNEL_DS); |
| 1061 | rval = sys_msgrcv((int)arg1, (struct msgbuf __user *) kmbuf, |
| 1062 | (size_t)arg3, |
| 1063 | (long)arg4, (int)arg5); |
| 1064 | set_fs(old_fs); |
| 1065 | if (!rval) |
| 1066 | rval = sunos_msgbuf_put((struct msgbuf32 __user *)(unsigned long)arg2, |
| 1067 | kmbuf, arg3); |
| 1068 | kfree(kmbuf); |
| 1069 | break; |
| 1070 | case 3: |
| 1071 | rval = -EFAULT; |
| 1072 | kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3, |
| 1073 | GFP_KERNEL); |
| 1074 | if (!kmbuf || sunos_msgbuf_get((struct msgbuf32 __user *)(unsigned long)arg2, |
| 1075 | kmbuf, arg3)) |
| 1076 | break; |
| 1077 | set_fs(KERNEL_DS); |
| 1078 | rval = sys_msgsnd((int)arg1, (struct msgbuf __user *) kmbuf, |
| 1079 | (size_t)arg3, (int)arg4); |
| 1080 | set_fs(old_fs); |
| 1081 | kfree(kmbuf); |
| 1082 | break; |
| 1083 | default: |
| 1084 | rval = -EINVAL; |
| 1085 | break; |
| 1086 | } |
| 1087 | return rval; |
| 1088 | } |
| 1089 | |
| 1090 | struct shmid_ds32 { |
| 1091 | struct ipc_perm32 shm_perm; |
| 1092 | int shm_segsz; |
| 1093 | compat_time_t shm_atime; |
| 1094 | compat_time_t shm_dtime; |
| 1095 | compat_time_t shm_ctime; |
| 1096 | compat_ipc_pid_t shm_cpid; |
| 1097 | compat_ipc_pid_t shm_lpid; |
| 1098 | unsigned short shm_nattch; |
| 1099 | }; |
| 1100 | |
| 1101 | static inline int sunos_shmid_get(struct shmid_ds32 __user *user, |
| 1102 | struct shmid_ds *kern) |
| 1103 | { |
| 1104 | if (get_user(kern->shm_perm.key, &user->shm_perm.key) || |
| 1105 | __get_user(kern->shm_perm.uid, &user->shm_perm.uid) || |
| 1106 | __get_user(kern->shm_perm.gid, &user->shm_perm.gid) || |
| 1107 | __get_user(kern->shm_perm.cuid, &user->shm_perm.cuid) || |
| 1108 | __get_user(kern->shm_perm.cgid, &user->shm_perm.cgid) || |
| 1109 | __get_user(kern->shm_segsz, &user->shm_segsz) || |
| 1110 | __get_user(kern->shm_atime, &user->shm_atime) || |
| 1111 | __get_user(kern->shm_dtime, &user->shm_dtime) || |
| 1112 | __get_user(kern->shm_ctime, &user->shm_ctime) || |
| 1113 | __get_user(kern->shm_cpid, &user->shm_cpid) || |
| 1114 | __get_user(kern->shm_lpid, &user->shm_lpid) || |
| 1115 | __get_user(kern->shm_nattch, &user->shm_nattch)) |
| 1116 | return -EFAULT; |
| 1117 | return 0; |
| 1118 | } |
| 1119 | |
| 1120 | static inline int sunos_shmid_put(struct shmid_ds32 __user *user, |
| 1121 | struct shmid_ds *kern) |
| 1122 | { |
| 1123 | if (put_user(kern->shm_perm.key, &user->shm_perm.key) || |
| 1124 | __put_user(kern->shm_perm.uid, &user->shm_perm.uid) || |
| 1125 | __put_user(kern->shm_perm.gid, &user->shm_perm.gid) || |
| 1126 | __put_user(kern->shm_perm.cuid, &user->shm_perm.cuid) || |
| 1127 | __put_user(kern->shm_perm.cgid, &user->shm_perm.cgid) || |
| 1128 | __put_user(kern->shm_segsz, &user->shm_segsz) || |
| 1129 | __put_user(kern->shm_atime, &user->shm_atime) || |
| 1130 | __put_user(kern->shm_dtime, &user->shm_dtime) || |
| 1131 | __put_user(kern->shm_ctime, &user->shm_ctime) || |
| 1132 | __put_user(kern->shm_cpid, &user->shm_cpid) || |
| 1133 | __put_user(kern->shm_lpid, &user->shm_lpid) || |
| 1134 | __put_user(kern->shm_nattch, &user->shm_nattch)) |
| 1135 | return -EFAULT; |
| 1136 | return 0; |
| 1137 | } |
| 1138 | |
| 1139 | asmlinkage int sunos_shmsys(int op, u32 arg1, u32 arg2, u32 arg3) |
| 1140 | { |
| 1141 | struct shmid_ds ksds; |
| 1142 | unsigned long raddr; |
| 1143 | mm_segment_t old_fs = get_fs(); |
| 1144 | int rval; |
| 1145 | |
| 1146 | switch(op) { |
| 1147 | case 0: |
| 1148 | /* do_shmat(): attach a shared memory area */ |
| 1149 | rval = do_shmat((int)arg1,(char __user *)(unsigned long)arg2,(int)arg3,&raddr); |
| 1150 | if (!rval) |
| 1151 | rval = (int) raddr; |
| 1152 | break; |
| 1153 | case 1: |
| 1154 | /* sys_shmctl(): modify shared memory area attr. */ |
| 1155 | if (!sunos_shmid_get((struct shmid_ds32 __user *)(unsigned long)arg3, &ksds)) { |
| 1156 | set_fs(KERNEL_DS); |
| 1157 | rval = sys_shmctl((int) arg1,(int) arg2, |
| 1158 | (struct shmid_ds __user *) &ksds); |
| 1159 | set_fs(old_fs); |
| 1160 | if (!rval) |
| 1161 | rval = sunos_shmid_put((struct shmid_ds32 __user *)(unsigned long)arg3, |
| 1162 | &ksds); |
| 1163 | } else |
| 1164 | rval = -EFAULT; |
| 1165 | break; |
| 1166 | case 2: |
| 1167 | /* sys_shmdt(): detach a shared memory area */ |
| 1168 | rval = sys_shmdt((char __user *)(unsigned long)arg1); |
| 1169 | break; |
| 1170 | case 3: |
| 1171 | /* sys_shmget(): get a shared memory area */ |
| 1172 | rval = sys_shmget((key_t)arg1,(int)arg2,(int)arg3); |
| 1173 | break; |
| 1174 | default: |
| 1175 | rval = -EINVAL; |
| 1176 | break; |
| 1177 | }; |
| 1178 | return rval; |
| 1179 | } |
| 1180 | |
| 1181 | extern asmlinkage long sparc32_open(const char __user * filename, int flags, int mode); |
| 1182 | |
| 1183 | asmlinkage int sunos_open(u32 fname, int flags, int mode) |
| 1184 | { |
| 1185 | const char __user *filename = compat_ptr(fname); |
| 1186 | |
| 1187 | return sparc32_open(filename, flags, mode); |
| 1188 | } |
| 1189 | |
| 1190 | #define SUNOS_EWOULDBLOCK 35 |
| 1191 | |
| 1192 | /* see the sunos man page read(2v) for an explanation |
| 1193 | of this garbage. We use O_NDELAY to mark |
| 1194 | file descriptors that have been set non-blocking |
| 1195 | using 4.2BSD style calls. (tridge) */ |
| 1196 | |
| 1197 | static inline int check_nonblock(int ret, int fd) |
| 1198 | { |
| 1199 | if (ret == -EAGAIN) { |
| 1200 | struct file * file = fget(fd); |
| 1201 | if (file) { |
| 1202 | if (file->f_flags & O_NDELAY) |
| 1203 | ret = -SUNOS_EWOULDBLOCK; |
| 1204 | fput(file); |
| 1205 | } |
| 1206 | } |
| 1207 | return ret; |
| 1208 | } |
| 1209 | |
| 1210 | asmlinkage int sunos_read(unsigned int fd, char __user *buf, u32 count) |
| 1211 | { |
| 1212 | int ret; |
| 1213 | |
| 1214 | ret = check_nonblock(sys_read(fd, buf, count), fd); |
| 1215 | return ret; |
| 1216 | } |
| 1217 | |
| 1218 | asmlinkage int sunos_readv(u32 fd, void __user *vector, s32 count) |
| 1219 | { |
| 1220 | int ret; |
| 1221 | |
| 1222 | ret = check_nonblock(compat_sys_readv(fd, vector, count), fd); |
| 1223 | return ret; |
| 1224 | } |
| 1225 | |
| 1226 | asmlinkage int sunos_write(unsigned int fd, char __user *buf, u32 count) |
| 1227 | { |
| 1228 | int ret; |
| 1229 | |
| 1230 | ret = check_nonblock(sys_write(fd, buf, count), fd); |
| 1231 | return ret; |
| 1232 | } |
| 1233 | |
| 1234 | asmlinkage int sunos_writev(u32 fd, void __user *vector, s32 count) |
| 1235 | { |
| 1236 | int ret; |
| 1237 | |
| 1238 | ret = check_nonblock(compat_sys_writev(fd, vector, count), fd); |
| 1239 | return ret; |
| 1240 | } |
| 1241 | |
| 1242 | asmlinkage int sunos_recv(u32 __fd, void __user *ubuf, int size, unsigned flags) |
| 1243 | { |
| 1244 | int ret, fd = (int) __fd; |
| 1245 | |
| 1246 | ret = check_nonblock(sys_recv(fd, ubuf, size, flags), fd); |
| 1247 | return ret; |
| 1248 | } |
| 1249 | |
| 1250 | asmlinkage int sunos_send(u32 __fd, void __user *buff, int len, unsigned flags) |
| 1251 | { |
| 1252 | int ret, fd = (int) __fd; |
| 1253 | |
| 1254 | ret = check_nonblock(sys_send(fd, buff, len, flags), fd); |
| 1255 | return ret; |
| 1256 | } |
| 1257 | |
| 1258 | asmlinkage int sunos_accept(u32 __fd, struct sockaddr __user *sa, int __user *addrlen) |
| 1259 | { |
| 1260 | int ret, fd = (int) __fd; |
| 1261 | |
| 1262 | while (1) { |
| 1263 | ret = check_nonblock(sys_accept(fd, sa, addrlen), fd); |
| 1264 | if (ret != -ENETUNREACH && ret != -EHOSTUNREACH) |
| 1265 | break; |
| 1266 | } |
| 1267 | return ret; |
| 1268 | } |
| 1269 | |
| 1270 | #define SUNOS_SV_INTERRUPT 2 |
| 1271 | |
| 1272 | asmlinkage int sunos_sigaction (int sig, |
| 1273 | struct old_sigaction32 __user *act, |
| 1274 | struct old_sigaction32 __user *oact) |
| 1275 | { |
| 1276 | struct k_sigaction new_ka, old_ka; |
| 1277 | int ret; |
| 1278 | |
| 1279 | if (act) { |
| 1280 | compat_old_sigset_t mask; |
| 1281 | u32 u_handler; |
| 1282 | |
| 1283 | if (get_user(u_handler, &act->sa_handler) || |
| 1284 | __get_user(new_ka.sa.sa_flags, &act->sa_flags)) |
| 1285 | return -EFAULT; |
| 1286 | new_ka.sa.sa_handler = compat_ptr(u_handler); |
| 1287 | __get_user(mask, &act->sa_mask); |
| 1288 | new_ka.sa.sa_restorer = NULL; |
| 1289 | new_ka.ka_restorer = NULL; |
| 1290 | siginitset(&new_ka.sa.sa_mask, mask); |
| 1291 | new_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT; |
| 1292 | } |
| 1293 | |
| 1294 | ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); |
| 1295 | |
| 1296 | if (!ret && oact) { |
| 1297 | old_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT; |
| 1298 | if (put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler) || |
| 1299 | __put_user(old_ka.sa.sa_flags, &oact->sa_flags)) |
| 1300 | return -EFAULT; |
| 1301 | __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask); |
| 1302 | } |
| 1303 | |
| 1304 | return ret; |
| 1305 | } |
| 1306 | |
| 1307 | asmlinkage int sunos_setsockopt(u32 __fd, u32 __level, u32 __optname, |
| 1308 | char __user *optval, u32 __optlen) |
| 1309 | { |
| 1310 | int fd = (int) __fd; |
| 1311 | int level = (int) __level; |
| 1312 | int optname = (int) __optname; |
| 1313 | int optlen = (int) __optlen; |
| 1314 | int tr_opt = optname; |
| 1315 | int ret; |
| 1316 | |
| 1317 | if (level == SOL_IP) { |
| 1318 | /* Multicast socketopts (ttl, membership) */ |
| 1319 | if (tr_opt >=2 && tr_opt <= 6) |
| 1320 | tr_opt += 30; |
| 1321 | } |
| 1322 | ret = sys_setsockopt(fd, level, tr_opt, |
| 1323 | optval, optlen); |
| 1324 | return ret; |
| 1325 | } |
| 1326 | |
| 1327 | asmlinkage int sunos_getsockopt(u32 __fd, u32 __level, u32 __optname, |
| 1328 | char __user *optval, int __user *optlen) |
| 1329 | { |
| 1330 | int fd = (int) __fd; |
| 1331 | int level = (int) __level; |
| 1332 | int optname = (int) __optname; |
| 1333 | int tr_opt = optname; |
| 1334 | int ret; |
| 1335 | |
| 1336 | if (level == SOL_IP) { |
| 1337 | /* Multicast socketopts (ttl, membership) */ |
| 1338 | if (tr_opt >=2 && tr_opt <= 6) |
| 1339 | tr_opt += 30; |
| 1340 | } |
| 1341 | ret = compat_sys_getsockopt(fd, level, tr_opt, |
| 1342 | optval, optlen); |
| 1343 | return ret; |
| 1344 | } |