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/arch/mips/kernel/sysirix.c

https://bitbucket.org/evzijst/gittest
C | 2179 lines | 1793 code | 313 blank | 73 comment | 144 complexity | 1aed4eba76f6dc59e4700c26d443a59a MD5 | raw file

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   1/*
   2 * sysirix.c: IRIX system call emulation.
   3 *
   4 * Copyright (C) 1996 David S. Miller
   5 * Copyright (C) 1997 Miguel de Icaza
   6 * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle
   7 */
   8#include <linux/kernel.h>
   9#include <linux/sched.h>
  10#include <linux/binfmts.h>
  11#include <linux/highuid.h>
  12#include <linux/pagemap.h>
  13#include <linux/mm.h>
  14#include <linux/mman.h>
  15#include <linux/slab.h>
  16#include <linux/swap.h>
  17#include <linux/errno.h>
  18#include <linux/time.h>
  19#include <linux/timex.h>
  20#include <linux/times.h>
  21#include <linux/elf.h>
  22#include <linux/msg.h>
  23#include <linux/shm.h>
  24#include <linux/smp.h>
  25#include <linux/smp_lock.h>
  26#include <linux/utsname.h>
  27#include <linux/file.h>
  28#include <linux/vfs.h>
  29#include <linux/namei.h>
  30#include <linux/socket.h>
  31#include <linux/security.h>
  32#include <linux/syscalls.h>
  33
  34#include <asm/ptrace.h>
  35#include <asm/page.h>
  36#include <asm/uaccess.h>
  37#include <asm/inventory.h>
  38
  39/* 2,191 lines of complete and utter shit coming up... */
  40
  41extern int max_threads;
  42
  43/* The sysmp commands supported thus far. */
  44#define MP_NPROCS       	1 /* # processor in complex */
  45#define MP_NAPROCS      	2 /* # active processors in complex */
  46#define MP_PGSIZE           	14 /* Return system page size in v1. */
  47
  48asmlinkage int irix_sysmp(struct pt_regs *regs)
  49{
  50	unsigned long cmd;
  51	int base = 0;
  52	int error = 0;
  53
  54	if(regs->regs[2] == 1000)
  55		base = 1;
  56	cmd = regs->regs[base + 4];
  57	switch(cmd) {
  58	case MP_PGSIZE:
  59		error = PAGE_SIZE;
  60		break;
  61	case MP_NPROCS:
  62	case MP_NAPROCS:
  63		error = num_online_cpus();
  64		break;
  65	default:
  66		printk("SYSMP[%s:%d]: Unsupported opcode %d\n",
  67		       current->comm, current->pid, (int)cmd);
  68		error = -EINVAL;
  69		break;
  70	}
  71
  72	return error;
  73}
  74
  75/* The prctl commands. */
  76#define PR_MAXPROCS          1 /* Tasks/user. */
  77#define PR_ISBLOCKED         2 /* If blocked, return 1. */
  78#define PR_SETSTACKSIZE      3 /* Set largest task stack size. */
  79#define PR_GETSTACKSIZE      4 /* Get largest task stack size. */
  80#define PR_MAXPPROCS         5 /* Num parallel tasks. */
  81#define PR_UNBLKONEXEC       6 /* When task exec/exit's, unblock. */
  82#define PR_SETEXITSIG        8 /* When task exit's, set signal. */
  83#define PR_RESIDENT          9 /* Make task unswappable. */
  84#define PR_ATTACHADDR       10 /* (Re-)Connect a vma to a task. */
  85#define PR_DETACHADDR       11 /* Disconnect a vma from a task. */
  86#define PR_TERMCHILD        12 /* When parent sleeps with fishes, kill child. */
  87#define PR_GETSHMASK        13 /* Get the sproc() share mask. */
  88#define PR_GETNSHARE        14 /* Number of share group members. */
  89#define PR_COREPID          15 /* Add task pid to name when it core. */
  90#define	PR_ATTACHADDRPERM   16 /* (Re-)Connect vma, with specified prot. */
  91#define PR_PTHREADEXIT      17 /* Kill a pthread without prejudice. */
  92
  93asmlinkage int irix_prctl(struct pt_regs *regs)
  94{
  95	unsigned long cmd;
  96	int error = 0, base = 0;
  97
  98	if (regs->regs[2] == 1000)
  99		base = 1;
 100	cmd = regs->regs[base + 4];
 101	switch (cmd) {
 102	case PR_MAXPROCS:
 103		printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
 104		       current->comm, current->pid);
 105		error = max_threads;
 106		break;
 107
 108	case PR_ISBLOCKED: {
 109		struct task_struct *task;
 110
 111		printk("irix_prctl[%s:%d]: Wants PR_ISBLOCKED\n",
 112		       current->comm, current->pid);
 113		read_lock(&tasklist_lock);
 114		task = find_task_by_pid(regs->regs[base + 5]);
 115		error = -ESRCH;
 116		if (error)
 117			error = (task->run_list.next != NULL);
 118		read_unlock(&tasklist_lock);
 119		/* Can _your_ OS find this out that fast? */
 120		break;
 121	}
 122
 123	case PR_SETSTACKSIZE: {
 124		long value = regs->regs[base + 5];
 125
 126		printk("irix_prctl[%s:%d]: Wants PR_SETSTACKSIZE<%08lx>\n",
 127		       current->comm, current->pid, (unsigned long) value);
 128		if (value > RLIM_INFINITY)
 129			value = RLIM_INFINITY;
 130		if (capable(CAP_SYS_ADMIN)) {
 131			task_lock(current->group_leader);
 132			current->signal->rlim[RLIMIT_STACK].rlim_max =
 133				current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
 134			task_unlock(current->group_leader);
 135			error = value;
 136			break;
 137		}
 138		task_lock(current->group_leader);
 139		if (value > current->signal->rlim[RLIMIT_STACK].rlim_max) {
 140			error = -EINVAL;
 141			task_unlock(current->group_leader);
 142			break;
 143		}
 144		current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
 145		task_unlock(current->group_leader);
 146		error = value;
 147		break;
 148	}
 149
 150	case PR_GETSTACKSIZE:
 151		printk("irix_prctl[%s:%d]: Wants PR_GETSTACKSIZE\n",
 152		       current->comm, current->pid);
 153		error = current->signal->rlim[RLIMIT_STACK].rlim_cur;
 154		break;
 155
 156	case PR_MAXPPROCS:
 157		printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
 158		       current->comm, current->pid);
 159		error = 1;
 160		break;
 161
 162	case PR_UNBLKONEXEC:
 163		printk("irix_prctl[%s:%d]: Wants PR_UNBLKONEXEC\n",
 164		       current->comm, current->pid);
 165		error = -EINVAL;
 166		break;
 167
 168	case PR_SETEXITSIG:
 169		printk("irix_prctl[%s:%d]: Wants PR_SETEXITSIG\n",
 170		       current->comm, current->pid);
 171
 172		/* We can probably play some game where we set the task
 173		 * exit_code to some non-zero value when this is requested,
 174		 * and check whether exit_code is already set in do_exit().
 175		 */
 176		error = -EINVAL;
 177		break;
 178
 179	case PR_RESIDENT:
 180		printk("irix_prctl[%s:%d]: Wants PR_RESIDENT\n",
 181		       current->comm, current->pid);
 182		error = 0; /* Compatibility indeed. */
 183		break;
 184
 185	case PR_ATTACHADDR:
 186		printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDR\n",
 187		       current->comm, current->pid);
 188		error = -EINVAL;
 189		break;
 190
 191	case PR_DETACHADDR:
 192		printk("irix_prctl[%s:%d]: Wants PR_DETACHADDR\n",
 193		       current->comm, current->pid);
 194		error = -EINVAL;
 195		break;
 196
 197	case PR_TERMCHILD:
 198		printk("irix_prctl[%s:%d]: Wants PR_TERMCHILD\n",
 199		       current->comm, current->pid);
 200		error = -EINVAL;
 201		break;
 202
 203	case PR_GETSHMASK:
 204		printk("irix_prctl[%s:%d]: Wants PR_GETSHMASK\n",
 205		       current->comm, current->pid);
 206		error = -EINVAL; /* Until I have the sproc() stuff in. */
 207		break;
 208
 209	case PR_GETNSHARE:
 210		error = 0;       /* Until I have the sproc() stuff in. */
 211		break;
 212
 213	case PR_COREPID:
 214		printk("irix_prctl[%s:%d]: Wants PR_COREPID\n",
 215		       current->comm, current->pid);
 216		error = -EINVAL;
 217		break;
 218
 219	case PR_ATTACHADDRPERM:
 220		printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDRPERM\n",
 221		       current->comm, current->pid);
 222		error = -EINVAL;
 223		break;
 224
 225	case PR_PTHREADEXIT:
 226		printk("irix_prctl[%s:%d]: Wants PR_PTHREADEXIT\n",
 227		       current->comm, current->pid);
 228		do_exit(regs->regs[base + 5]);
 229
 230	default:
 231		printk("irix_prctl[%s:%d]: Non-existant opcode %d\n",
 232		       current->comm, current->pid, (int)cmd);
 233		error = -EINVAL;
 234		break;
 235	}
 236
 237	return error;
 238}
 239
 240#undef DEBUG_PROCGRPS
 241
 242extern unsigned long irix_mapelf(int fd, struct elf_phdr *user_phdrp, int cnt);
 243extern int getrusage(struct task_struct *p, int who, struct rusage __user *ru);
 244extern char *prom_getenv(char *name);
 245extern long prom_setenv(char *name, char *value);
 246
 247/* The syssgi commands supported thus far. */
 248#define SGI_SYSID         1       /* Return unique per-machine identifier. */
 249#define SGI_INVENT        5       /* Fetch inventory  */
 250#   define SGI_INV_SIZEOF 1
 251#   define SGI_INV_READ   2
 252#define SGI_RDNAME        6       /* Return string name of a process. */
 253#define SGI_SETNVRAM	  8	  /* Set PROM variable. */
 254#define SGI_GETNVRAM	  9	  /* Get PROM variable. */
 255#define SGI_SETPGID      21       /* Set process group id. */
 256#define SGI_SYSCONF      22       /* POSIX sysconf garbage. */
 257#define SGI_PATHCONF     24       /* POSIX sysconf garbage. */
 258#define SGI_SETGROUPS    40       /* POSIX sysconf garbage. */
 259#define SGI_GETGROUPS    41       /* POSIX sysconf garbage. */
 260#define SGI_RUSAGE       56       /* BSD style rusage(). */
 261#define SGI_SSYNC        62       /* Synchronous fs sync. */
 262#define SGI_GETSID       65       /* SysVr4 get session id. */
 263#define SGI_ELFMAP       68       /* Map an elf image. */
 264#define SGI_TOSSTSAVE   108       /* Toss saved vma's. */
 265#define SGI_FP_BCOPY    129       /* Should FPU bcopy be used on this machine? */
 266#define SGI_PHYSP      1011       /* Translate virtual into physical page. */
 267
 268asmlinkage int irix_syssgi(struct pt_regs *regs)
 269{
 270	unsigned long cmd;
 271	int retval, base = 0;
 272
 273	if (regs->regs[2] == 1000)
 274		base = 1;
 275
 276	cmd = regs->regs[base + 4];
 277	switch(cmd) {
 278	case SGI_SYSID: {
 279		char *buf = (char *) regs->regs[base + 5];
 280
 281		/* XXX Use ethernet addr.... */
 282		retval = clear_user(buf, 64);
 283		break;
 284	}
 285#if 0
 286	case SGI_RDNAME: {
 287		int pid = (int) regs->regs[base + 5];
 288		char *buf = (char *) regs->regs[base + 6];
 289		struct task_struct *p;
 290		char tcomm[sizeof(current->comm)];
 291
 292		if (!access_ok(VERIFY_WRITE, buf, sizeof(tcomm))) {
 293			retval = -EFAULT;
 294			break;
 295		}
 296		read_lock(&tasklist_lock);
 297		p = find_task_by_pid(pid);
 298		if (!p) {
 299			read_unlock(&tasklist_lock);
 300			retval = -ESRCH;
 301			break;
 302		}
 303		get_task_comm(tcomm, p);
 304		read_unlock(&tasklist_lock);
 305
 306		/* XXX Need to check sizes. */
 307		copy_to_user(buf, tcomm, sizeof(tcomm));
 308		retval = 0;
 309		break;
 310	}
 311
 312	case SGI_GETNVRAM: {
 313		char *name = (char *) regs->regs[base+5];
 314		char *buf = (char *) regs->regs[base+6];
 315		char *value;
 316		return -EINVAL;	/* til I fix it */
 317		if (!access_ok(VERIFY_WRITE, buf, 128)) {
 318			retval = -EFAULT;
 319			break;
 320		}
 321		value = prom_getenv(name);	/* PROM lock?  */
 322		if (!value) {
 323			retval = -EINVAL;
 324			break;
 325		}
 326		/* Do I strlen() for the length? */
 327		copy_to_user(buf, value, 128);
 328		retval = 0;
 329		break;
 330	}
 331
 332	case SGI_SETNVRAM: {
 333		char *name = (char *) regs->regs[base+5];
 334		char *value = (char *) regs->regs[base+6];
 335		return -EINVAL;	/* til I fix it */
 336		retval = prom_setenv(name, value);
 337		/* XXX make sure retval conforms to syssgi(2) */
 338		printk("[%s:%d] setnvram(\"%s\", \"%s\"): retval %d",
 339		       current->comm, current->pid, name, value, retval);
 340/*		if (retval == PROM_ENOENT)
 341		  	retval = -ENOENT; */
 342		break;
 343	}
 344#endif
 345
 346	case SGI_SETPGID: {
 347#ifdef DEBUG_PROCGRPS
 348		printk("[%s:%d] setpgid(%d, %d) ",
 349		       current->comm, current->pid,
 350		       (int) regs->regs[base + 5], (int)regs->regs[base + 6]);
 351#endif
 352		retval = sys_setpgid(regs->regs[base + 5], regs->regs[base + 6]);
 353
 354#ifdef DEBUG_PROCGRPS
 355		printk("retval=%d\n", retval);
 356#endif
 357	}
 358
 359	case SGI_SYSCONF: {
 360		switch(regs->regs[base + 5]) {
 361		case 1:
 362			retval = (MAX_ARG_PAGES >> 4); /* XXX estimate... */
 363			goto out;
 364		case 2:
 365			retval = max_threads;
 366			goto out;
 367		case 3:
 368			retval = HZ;
 369			goto out;
 370		case 4:
 371			retval = NGROUPS_MAX;
 372			goto out;
 373		case 5:
 374			retval = NR_OPEN;
 375			goto out;
 376		case 6:
 377			retval = 1;
 378			goto out;
 379		case 7:
 380			retval = 1;
 381			goto out;
 382		case 8:
 383			retval = 199009;
 384			goto out;
 385		case 11:
 386			retval = PAGE_SIZE;
 387			goto out;
 388		case 12:
 389			retval = 4;
 390			goto out;
 391		case 25:
 392		case 26:
 393		case 27:
 394		case 28:
 395		case 29:
 396		case 30:
 397			retval = 0;
 398			goto out;
 399		case 31:
 400			retval = 32;
 401			goto out;
 402		default:
 403			retval = -EINVAL;
 404			goto out;
 405		};
 406	}
 407
 408	case SGI_SETGROUPS:
 409		retval = sys_setgroups((int) regs->regs[base + 5],
 410		                       (gid_t *) regs->regs[base + 6]);
 411		break;
 412
 413	case SGI_GETGROUPS:
 414		retval = sys_getgroups((int) regs->regs[base + 5],
 415		                       (gid_t *) regs->regs[base + 6]);
 416		break;
 417
 418	case SGI_RUSAGE: {
 419		struct rusage *ru = (struct rusage *) regs->regs[base + 6];
 420
 421		switch((int) regs->regs[base + 5]) {
 422		case 0:
 423			/* rusage self */
 424			retval = getrusage(current, RUSAGE_SELF, ru);
 425			goto out;
 426
 427		case -1:
 428			/* rusage children */
 429			retval = getrusage(current, RUSAGE_CHILDREN, ru);
 430			goto out;
 431
 432		default:
 433			retval = -EINVAL;
 434			goto out;
 435		};
 436	}
 437
 438	case SGI_SSYNC:
 439		sys_sync();
 440		retval = 0;
 441		break;
 442
 443	case SGI_GETSID:
 444#ifdef DEBUG_PROCGRPS
 445		printk("[%s:%d] getsid(%d) ", current->comm, current->pid,
 446		       (int) regs->regs[base + 5]);
 447#endif
 448		retval = sys_getsid(regs->regs[base + 5]);
 449#ifdef DEBUG_PROCGRPS
 450		printk("retval=%d\n", retval);
 451#endif
 452		break;
 453
 454	case SGI_ELFMAP:
 455		retval = irix_mapelf((int) regs->regs[base + 5],
 456				     (struct elf_phdr *) regs->regs[base + 6],
 457				     (int) regs->regs[base + 7]);
 458		break;
 459
 460	case SGI_TOSSTSAVE:
 461		/* XXX We don't need to do anything? */
 462		retval = 0;
 463		break;
 464
 465	case SGI_FP_BCOPY:
 466		retval = 0;
 467		break;
 468
 469	case SGI_PHYSP: {
 470		unsigned long addr = regs->regs[base + 5];
 471		int *pageno = (int *) (regs->regs[base + 6]);
 472		struct mm_struct *mm = current->mm;
 473		pgd_t *pgdp;
 474		pmd_t *pmdp;
 475		pte_t *ptep;
 476
 477		if (!access_ok(VERIFY_WRITE, pageno, sizeof(int)))
 478			return -EFAULT;
 479
 480		down_read(&mm->mmap_sem);
 481		pgdp = pgd_offset(mm, addr);
 482		pmdp = pmd_offset(pgdp, addr);
 483		ptep = pte_offset(pmdp, addr);
 484		retval = -EINVAL;
 485		if (ptep) {
 486			pte_t pte = *ptep;
 487
 488			if (pte_val(pte) & (_PAGE_VALID | _PAGE_PRESENT)) {
 489				retval =  put_user((pte_val(pte) & PAGE_MASK) >>
 490				                   PAGE_SHIFT, pageno);
 491			}
 492		}
 493		up_read(&mm->mmap_sem);
 494		break;
 495	}
 496
 497	case SGI_INVENT: {
 498		int  arg1    = (int)    regs->regs [base + 5];
 499		void *buffer = (void *) regs->regs [base + 6];
 500		int  count   = (int)    regs->regs [base + 7];
 501
 502		switch (arg1) {
 503		case SGI_INV_SIZEOF:
 504			retval = sizeof (inventory_t);
 505			break;
 506		case SGI_INV_READ:
 507			retval = dump_inventory_to_user (buffer, count);
 508			break;
 509		default:
 510			retval = -EINVAL;
 511		}
 512		break;
 513	}
 514
 515	default:
 516		printk("irix_syssgi: Unsupported command %d\n", (int)cmd);
 517		retval = -EINVAL;
 518		break;
 519	};
 520
 521out:
 522	return retval;
 523}
 524
 525asmlinkage int irix_gtime(struct pt_regs *regs)
 526{
 527	return get_seconds();
 528}
 529
 530/*
 531 * IRIX is completely broken... it returns 0 on success, otherwise
 532 * ENOMEM.
 533 */
 534asmlinkage int irix_brk(unsigned long brk)
 535{
 536	unsigned long rlim;
 537	unsigned long newbrk, oldbrk;
 538	struct mm_struct *mm = current->mm;
 539	int ret;
 540
 541	down_write(&mm->mmap_sem);
 542	if (brk < mm->end_code) {
 543		ret = -ENOMEM;
 544		goto out;
 545	}
 546
 547	newbrk = PAGE_ALIGN(brk);
 548	oldbrk = PAGE_ALIGN(mm->brk);
 549	if (oldbrk == newbrk) {
 550		mm->brk = brk;
 551		ret = 0;
 552		goto out;
 553	}
 554
 555	/*
 556	 * Always allow shrinking brk
 557	 */
 558	if (brk <= mm->brk) {
 559		mm->brk = brk;
 560		do_munmap(mm, newbrk, oldbrk-newbrk);
 561		ret = 0;
 562		goto out;
 563	}
 564	/*
 565	 * Check against rlimit and stack..
 566	 */
 567	rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
 568	if (rlim >= RLIM_INFINITY)
 569		rlim = ~0;
 570	if (brk - mm->end_code > rlim) {
 571		ret = -ENOMEM;
 572		goto out;
 573	}
 574
 575	/*
 576	 * Check against existing mmap mappings.
 577	 */
 578	if (find_vma_intersection(mm, oldbrk, newbrk+PAGE_SIZE)) {
 579		ret = -ENOMEM;
 580		goto out;
 581	}
 582
 583	/*
 584	 * Check if we have enough memory..
 585	 */
 586	if (security_vm_enough_memory((newbrk-oldbrk) >> PAGE_SHIFT)) {
 587		ret = -ENOMEM;
 588		goto out;
 589	}
 590
 591	/*
 592	 * Ok, looks good - let it rip.
 593	 */
 594	mm->brk = brk;
 595	do_brk(oldbrk, newbrk-oldbrk);
 596	ret = 0;
 597
 598out:
 599	up_write(&mm->mmap_sem);
 600	return ret;
 601}
 602
 603asmlinkage int irix_getpid(struct pt_regs *regs)
 604{
 605	regs->regs[3] = current->real_parent->pid;
 606	return current->pid;
 607}
 608
 609asmlinkage int irix_getuid(struct pt_regs *regs)
 610{
 611	regs->regs[3] = current->euid;
 612	return current->uid;
 613}
 614
 615asmlinkage int irix_getgid(struct pt_regs *regs)
 616{
 617	regs->regs[3] = current->egid;
 618	return current->gid;
 619}
 620
 621asmlinkage int irix_stime(int value)
 622{
 623	int err;
 624	struct timespec tv;
 625
 626	tv.tv_sec = value;
 627	tv.tv_nsec = 0;
 628	err = security_settime(&tv, NULL);
 629	if (err)
 630		return err;
 631
 632	write_seqlock_irq(&xtime_lock);
 633	xtime.tv_sec = value;
 634	xtime.tv_nsec = 0;
 635	time_adjust = 0;			/* stop active adjtime() */
 636	time_status |= STA_UNSYNC;
 637	time_maxerror = NTP_PHASE_LIMIT;
 638	time_esterror = NTP_PHASE_LIMIT;
 639	write_sequnlock_irq(&xtime_lock);
 640
 641	return 0;
 642}
 643
 644static inline void jiffiestotv(unsigned long jiffies, struct timeval *value)
 645{
 646	value->tv_usec = (jiffies % HZ) * (1000000 / HZ);
 647	value->tv_sec = jiffies / HZ;
 648}
 649
 650static inline void getitimer_real(struct itimerval *value)
 651{
 652	register unsigned long val, interval;
 653
 654	interval = current->it_real_incr;
 655	val = 0;
 656	if (del_timer(&current->real_timer)) {
 657		unsigned long now = jiffies;
 658		val = current->real_timer.expires;
 659		add_timer(&current->real_timer);
 660		/* look out for negative/zero itimer.. */
 661		if (val <= now)
 662			val = now+1;
 663		val -= now;
 664	}
 665	jiffiestotv(val, &value->it_value);
 666	jiffiestotv(interval, &value->it_interval);
 667}
 668
 669asmlinkage unsigned int irix_alarm(unsigned int seconds)
 670{
 671	struct itimerval it_new, it_old;
 672	unsigned int oldalarm;
 673
 674	if (!seconds) {
 675		getitimer_real(&it_old);
 676		del_timer(&current->real_timer);
 677	} else {
 678		it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0;
 679		it_new.it_value.tv_sec = seconds;
 680		it_new.it_value.tv_usec = 0;
 681		do_setitimer(ITIMER_REAL, &it_new, &it_old);
 682	}
 683	oldalarm = it_old.it_value.tv_sec;
 684	/*
 685	 * ehhh.. We can't return 0 if we have an alarm pending ...
 686	 * And we'd better return too much than too little anyway
 687	 */
 688	if (it_old.it_value.tv_usec)
 689		oldalarm++;
 690
 691	return oldalarm;
 692}
 693
 694asmlinkage int irix_pause(void)
 695{
 696	current->state = TASK_INTERRUPTIBLE;
 697	schedule();
 698
 699	return -EINTR;
 700}
 701
 702/* XXX need more than this... */
 703asmlinkage int irix_mount(char *dev_name, char *dir_name, unsigned long flags,
 704			  char *type, void *data, int datalen)
 705{
 706	printk("[%s:%d] irix_mount(%p,%p,%08lx,%p,%p,%d)\n",
 707	       current->comm, current->pid,
 708	       dev_name, dir_name, flags, type, data, datalen);
 709
 710	return sys_mount(dev_name, dir_name, type, flags, data);
 711}
 712
 713struct irix_statfs {
 714	short f_type;
 715        long  f_bsize, f_frsize, f_blocks, f_bfree, f_files, f_ffree;
 716	char  f_fname[6], f_fpack[6];
 717};
 718
 719asmlinkage int irix_statfs(const char *path, struct irix_statfs *buf,
 720			   int len, int fs_type)
 721{
 722	struct nameidata nd;
 723	struct kstatfs kbuf;
 724	int error, i;
 725
 726	/* We don't support this feature yet. */
 727	if (fs_type) {
 728		error = -EINVAL;
 729		goto out;
 730	}
 731	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
 732		error = -EFAULT;
 733		goto out;
 734	}
 735	error = user_path_walk(path, &nd);
 736	if (error)
 737		goto out;
 738
 739	error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
 740	if (error)
 741		goto dput_and_out;
 742
 743	__put_user(kbuf.f_type, &buf->f_type);
 744	__put_user(kbuf.f_bsize, &buf->f_bsize);
 745	__put_user(kbuf.f_frsize, &buf->f_frsize);
 746	__put_user(kbuf.f_blocks, &buf->f_blocks);
 747	__put_user(kbuf.f_bfree, &buf->f_bfree);
 748	__put_user(kbuf.f_files, &buf->f_files);
 749	__put_user(kbuf.f_ffree, &buf->f_ffree);
 750	for (i = 0; i < 6; i++) {
 751		__put_user(0, &buf->f_fname[i]);
 752		__put_user(0, &buf->f_fpack[i]);
 753	}
 754	error = 0;
 755
 756dput_and_out:
 757	path_release(&nd);
 758out:
 759	return error;
 760}
 761
 762asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs *buf)
 763{
 764	struct kstatfs kbuf;
 765	struct file *file;
 766	int error, i;
 767
 768	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
 769		error = -EFAULT;
 770		goto out;
 771	}
 772	if (!(file = fget(fd))) {
 773		error = -EBADF;
 774		goto out;
 775	}
 776
 777	error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
 778	if (error)
 779		goto out_f;
 780
 781	__put_user(kbuf.f_type, &buf->f_type);
 782	__put_user(kbuf.f_bsize, &buf->f_bsize);
 783	__put_user(kbuf.f_frsize, &buf->f_frsize);
 784	__put_user(kbuf.f_blocks, &buf->f_blocks);
 785	__put_user(kbuf.f_bfree, &buf->f_bfree);
 786	__put_user(kbuf.f_files, &buf->f_files);
 787	__put_user(kbuf.f_ffree, &buf->f_ffree);
 788	for(i = 0; i < 6; i++) {
 789		__put_user(0, &buf->f_fname[i]);
 790		__put_user(0, &buf->f_fpack[i]);
 791	}
 792
 793out_f:
 794	fput(file);
 795out:
 796	return error;
 797}
 798
 799asmlinkage int irix_setpgrp(int flags)
 800{
 801	int error;
 802
 803#ifdef DEBUG_PROCGRPS
 804	printk("[%s:%d] setpgrp(%d) ", current->comm, current->pid, flags);
 805#endif
 806	if(!flags)
 807		error = process_group(current);
 808	else
 809		error = sys_setsid();
 810#ifdef DEBUG_PROCGRPS
 811	printk("returning %d\n", process_group(current));
 812#endif
 813
 814	return error;
 815}
 816
 817asmlinkage int irix_times(struct tms * tbuf)
 818{
 819	int err = 0;
 820
 821	if (tbuf) {
 822		if (!access_ok(VERIFY_WRITE,tbuf,sizeof *tbuf))
 823			return -EFAULT;
 824		err |= __put_user(current->utime, &tbuf->tms_utime);
 825		err |= __put_user(current->stime, &tbuf->tms_stime);
 826		err |= __put_user(current->signal->cutime, &tbuf->tms_cutime);
 827		err |= __put_user(current->signal->cstime, &tbuf->tms_cstime);
 828	}
 829
 830	return err;
 831}
 832
 833asmlinkage int irix_exec(struct pt_regs *regs)
 834{
 835	int error, base = 0;
 836	char *filename;
 837
 838	if(regs->regs[2] == 1000)
 839		base = 1;
 840	filename = getname((char *) (long)regs->regs[base + 4]);
 841	error = PTR_ERR(filename);
 842	if (IS_ERR(filename))
 843		return error;
 844
 845	error = do_execve(filename, (char **) (long)regs->regs[base + 5],
 846	                  (char **) 0, regs);
 847	putname(filename);
 848
 849	return error;
 850}
 851
 852asmlinkage int irix_exece(struct pt_regs *regs)
 853{
 854	int error, base = 0;
 855	char *filename;
 856
 857	if (regs->regs[2] == 1000)
 858		base = 1;
 859	filename = getname((char *) (long)regs->regs[base + 4]);
 860	error = PTR_ERR(filename);
 861	if (IS_ERR(filename))
 862		return error;
 863	error = do_execve(filename, (char **) (long)regs->regs[base + 5],
 864	                  (char **) (long)regs->regs[base + 6], regs);
 865	putname(filename);
 866
 867	return error;
 868}
 869
 870asmlinkage unsigned long irix_gethostid(void)
 871{
 872	printk("[%s:%d]: irix_gethostid() called...\n",
 873	       current->comm, current->pid);
 874
 875	return -EINVAL;
 876}
 877
 878asmlinkage unsigned long irix_sethostid(unsigned long val)
 879{
 880	printk("[%s:%d]: irix_sethostid(%08lx) called...\n",
 881	       current->comm, current->pid, val);
 882
 883	return -EINVAL;
 884}
 885
 886asmlinkage int irix_socket(int family, int type, int protocol)
 887{
 888	switch(type) {
 889	case 1:
 890		type = SOCK_DGRAM;
 891		break;
 892
 893	case 2:
 894		type = SOCK_STREAM;
 895		break;
 896
 897	case 3:
 898		type = 9; /* Invalid... */
 899		break;
 900
 901	case 4:
 902		type = SOCK_RAW;
 903		break;
 904
 905	case 5:
 906		type = SOCK_RDM;
 907		break;
 908
 909	case 6:
 910		type = SOCK_SEQPACKET;
 911		break;
 912
 913	default:
 914		break;
 915	}
 916
 917	return sys_socket(family, type, protocol);
 918}
 919
 920asmlinkage int irix_getdomainname(char *name, int len)
 921{
 922	int error;
 923
 924	if (!access_ok(VERIFY_WRITE, name, len))
 925		return -EFAULT;
 926
 927	down_read(&uts_sem);
 928	if (len > __NEW_UTS_LEN)
 929		len = __NEW_UTS_LEN;
 930	error = 0;
 931	if (copy_to_user(name, system_utsname.domainname, len))
 932		error = -EFAULT;
 933	up_read(&uts_sem);
 934
 935	return error;
 936}
 937
 938asmlinkage unsigned long irix_getpagesize(void)
 939{
 940	return PAGE_SIZE;
 941}
 942
 943asmlinkage int irix_msgsys(int opcode, unsigned long arg0, unsigned long arg1,
 944			   unsigned long arg2, unsigned long arg3,
 945			   unsigned long arg4)
 946{
 947	switch (opcode) {
 948	case 0:
 949		return sys_msgget((key_t) arg0, (int) arg1);
 950	case 1:
 951		return sys_msgctl((int) arg0, (int) arg1, (struct msqid_ds *)arg2);
 952	case 2:
 953		return sys_msgrcv((int) arg0, (struct msgbuf *) arg1,
 954				  (size_t) arg2, (long) arg3, (int) arg4);
 955	case 3:
 956		return sys_msgsnd((int) arg0, (struct msgbuf *) arg1,
 957				  (size_t) arg2, (int) arg3);
 958	default:
 959		return -EINVAL;
 960	}
 961}
 962
 963asmlinkage int irix_shmsys(int opcode, unsigned long arg0, unsigned long arg1,
 964			   unsigned long arg2, unsigned long arg3)
 965{
 966	switch (opcode) {
 967	case 0:
 968		return do_shmat((int) arg0, (char *)arg1, (int) arg2,
 969				 (unsigned long *) arg3);
 970	case 1:
 971		return sys_shmctl((int)arg0, (int)arg1, (struct shmid_ds *)arg2);
 972	case 2:
 973		return sys_shmdt((char *)arg0);
 974	case 3:
 975		return sys_shmget((key_t) arg0, (int) arg1, (int) arg2);
 976	default:
 977		return -EINVAL;
 978	}
 979}
 980
 981asmlinkage int irix_semsys(int opcode, unsigned long arg0, unsigned long arg1,
 982			   unsigned long arg2, int arg3)
 983{
 984	switch (opcode) {
 985	case 0:
 986		return sys_semctl((int) arg0, (int) arg1, (int) arg2,
 987				  (union semun) arg3);
 988	case 1:
 989		return sys_semget((key_t) arg0, (int) arg1, (int) arg2);
 990	case 2:
 991		return sys_semop((int) arg0, (struct sembuf *)arg1,
 992				 (unsigned int) arg2);
 993	default:
 994		return -EINVAL;
 995	}
 996}
 997
 998static inline loff_t llseek(struct file *file, loff_t offset, int origin)
 999{
1000	loff_t (*fn)(struct file *, loff_t, int);
1001	loff_t retval;
1002
1003	fn = default_llseek;
1004	if (file->f_op && file->f_op->llseek)
1005        fn = file->f_op->llseek;
1006	lock_kernel();
1007	retval = fn(file, offset, origin);
1008	unlock_kernel();
1009	return retval;
1010}
1011
1012asmlinkage int irix_lseek64(int fd, int _unused, int offhi, int offlow,
1013                            int origin)
1014{
1015	int retval;
1016	struct file * file;
1017	loff_t offset;
1018
1019	retval = -EBADF;
1020	file = fget(fd);
1021	if (!file)
1022		goto bad;
1023	retval = -EINVAL;
1024	if (origin > 2)
1025		goto out_putf;
1026
1027	offset = llseek(file, ((loff_t) offhi << 32) | offlow, origin);
1028	retval = (int) offset;
1029
1030out_putf:
1031	fput(file);
1032bad:
1033	return retval;
1034}
1035
1036asmlinkage int irix_sginap(int ticks)
1037{
1038	current->state = TASK_INTERRUPTIBLE;
1039	schedule_timeout(ticks);
1040	return 0;
1041}
1042
1043asmlinkage int irix_sgikopt(char *istring, char *ostring, int len)
1044{
1045	return -EINVAL;
1046}
1047
1048asmlinkage int irix_gettimeofday(struct timeval *tv)
1049{
1050	time_t sec;
1051	long nsec, seq;
1052	int err;
1053
1054	if (!access_ok(VERIFY_WRITE, tv, sizeof(struct timeval)))
1055		return -EFAULT;
1056
1057	do {
1058		seq = read_seqbegin(&xtime_lock);
1059		sec = xtime.tv_sec;
1060		nsec = xtime.tv_nsec;
1061	} while (read_seqretry(&xtime_lock, seq));
1062
1063	err = __put_user(sec, &tv->tv_sec);
1064	err |= __put_user((nsec / 1000), &tv->tv_usec);
1065
1066	return err;
1067}
1068
1069#define IRIX_MAP_AUTOGROW 0x40
1070
1071asmlinkage unsigned long irix_mmap32(unsigned long addr, size_t len, int prot,
1072				     int flags, int fd, off_t offset)
1073{
1074	struct file *file = NULL;
1075	unsigned long retval;
1076
1077	if (!(flags & MAP_ANONYMOUS)) {
1078		if (!(file = fget(fd)))
1079			return -EBADF;
1080
1081		/* Ok, bad taste hack follows, try to think in something else
1082		 * when reading this.  */
1083		if (flags & IRIX_MAP_AUTOGROW) {
1084			unsigned long old_pos;
1085			long max_size = offset + len;
1086
1087			if (max_size > file->f_dentry->d_inode->i_size) {
1088				old_pos = sys_lseek (fd, max_size - 1, 0);
1089				sys_write (fd, "", 1);
1090				sys_lseek (fd, old_pos, 0);
1091			}
1092		}
1093	}
1094
1095	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1096
1097	down_write(&current->mm->mmap_sem);
1098	retval = do_mmap(file, addr, len, prot, flags, offset);
1099	up_write(&current->mm->mmap_sem);
1100	if (file)
1101		fput(file);
1102
1103	return retval;
1104}
1105
1106asmlinkage int irix_madvise(unsigned long addr, int len, int behavior)
1107{
1108	printk("[%s:%d] Wheee.. irix_madvise(%08lx,%d,%d)\n",
1109	       current->comm, current->pid, addr, len, behavior);
1110
1111	return -EINVAL;
1112}
1113
1114asmlinkage int irix_pagelock(char *addr, int len, int op)
1115{
1116	printk("[%s:%d] Wheee.. irix_pagelock(%p,%d,%d)\n",
1117	       current->comm, current->pid, addr, len, op);
1118
1119	return -EINVAL;
1120}
1121
1122asmlinkage int irix_quotactl(struct pt_regs *regs)
1123{
1124	printk("[%s:%d] Wheee.. irix_quotactl()\n",
1125	       current->comm, current->pid);
1126
1127	return -EINVAL;
1128}
1129
1130asmlinkage int irix_BSDsetpgrp(int pid, int pgrp)
1131{
1132	int error;
1133
1134#ifdef DEBUG_PROCGRPS
1135	printk("[%s:%d] BSDsetpgrp(%d, %d) ", current->comm, current->pid,
1136	       pid, pgrp);
1137#endif
1138	if(!pid)
1139		pid = current->pid;
1140
1141	/* Wheee, weird sysv thing... */
1142	if ((pgrp == 0) && (pid == current->pid))
1143		error = sys_setsid();
1144	else
1145		error = sys_setpgid(pid, pgrp);
1146
1147#ifdef DEBUG_PROCGRPS
1148	printk("error = %d\n", error);
1149#endif
1150
1151	return error;
1152}
1153
1154asmlinkage int irix_systeminfo(int cmd, char *buf, int cnt)
1155{
1156	printk("[%s:%d] Wheee.. irix_systeminfo(%d,%p,%d)\n",
1157	       current->comm, current->pid, cmd, buf, cnt);
1158
1159	return -EINVAL;
1160}
1161
1162struct iuname {
1163	char sysname[257], nodename[257], release[257];
1164	char version[257], machine[257];
1165	char m_type[257], base_rel[257];
1166	char _unused0[257], _unused1[257], _unused2[257];
1167	char _unused3[257], _unused4[257], _unused5[257];
1168};
1169
1170asmlinkage int irix_uname(struct iuname *buf)
1171{
1172	down_read(&uts_sem);
1173	if (copy_to_user(system_utsname.sysname, buf->sysname, 65)
1174	    || copy_to_user(system_utsname.nodename, buf->nodename, 65)
1175	    || copy_to_user(system_utsname.release, buf->release, 65)
1176	    || copy_to_user(system_utsname.version, buf->version, 65)
1177	    || copy_to_user(system_utsname.machine, buf->machine, 65)) {
1178		return -EFAULT;
1179	}
1180	up_read(&uts_sem);
1181
1182	return 1;
1183}
1184
1185#undef DEBUG_XSTAT
1186
1187static int irix_xstat32_xlate(struct kstat *stat, void *ubuf)
1188{
1189	struct xstat32 {
1190		u32 st_dev, st_pad1[3], st_ino, st_mode, st_nlink, st_uid, st_gid;
1191		u32 st_rdev, st_pad2[2], st_size, st_pad3;
1192		u32 st_atime0, st_atime1;
1193		u32 st_mtime0, st_mtime1;
1194		u32 st_ctime0, st_ctime1;
1195		u32 st_blksize, st_blocks;
1196		char st_fstype[16];
1197		u32 st_pad4[8];
1198	} ub;
1199
1200	if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1201		return -EOVERFLOW;
1202	ub.st_dev     = sysv_encode_dev(stat->dev);
1203	ub.st_ino     = stat->ino;
1204	ub.st_mode    = stat->mode;
1205	ub.st_nlink   = stat->nlink;
1206	SET_UID(ub.st_uid, stat->uid);
1207	SET_GID(ub.st_gid, stat->gid);
1208	ub.st_rdev    = sysv_encode_dev(stat->rdev);
1209#if BITS_PER_LONG == 32
1210	if (stat->size > MAX_NON_LFS)
1211		return -EOVERFLOW;
1212#endif
1213	ub.st_size    = stat->size;
1214	ub.st_atime0  = stat->atime.tv_sec;
1215	ub.st_atime1  = stat->atime.tv_nsec;
1216	ub.st_mtime0  = stat->mtime.tv_sec;
1217	ub.st_mtime1  = stat->atime.tv_nsec;
1218	ub.st_ctime0  = stat->ctime.tv_sec;
1219	ub.st_ctime1  = stat->atime.tv_nsec;
1220	ub.st_blksize = stat->blksize;
1221	ub.st_blocks  = stat->blocks;
1222	strcpy (ub.st_fstype, "efs");
1223
1224	return copy_to_user(ubuf, &ub, sizeof(ub)) ? -EFAULT : 0;
1225}
1226
1227static int irix_xstat64_xlate(struct kstat *stat, void *ubuf)
1228{
1229	struct xstat64 {
1230		u32 st_dev; s32 st_pad1[3];
1231		unsigned long long st_ino;
1232		u32 st_mode;
1233		u32 st_nlink; s32 st_uid; s32 st_gid; u32 st_rdev;
1234		s32 st_pad2[2];
1235		long long st_size;
1236		s32 st_pad3;
1237		struct { s32 tv_sec, tv_nsec; } st_atime, st_mtime, st_ctime;
1238		s32 st_blksize;
1239		long long  st_blocks;
1240		char st_fstype[16];
1241		s32 st_pad4[8];
1242	} ks;
1243
1244	if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1245		return -EOVERFLOW;
1246
1247	ks.st_dev = sysv_encode_dev(stat->dev);
1248	ks.st_pad1[0] = ks.st_pad1[1] = ks.st_pad1[2] = 0;
1249	ks.st_ino = (unsigned long long) stat->ino;
1250	ks.st_mode = (u32) stat->mode;
1251	ks.st_nlink = (u32) stat->nlink;
1252	ks.st_uid = (s32) stat->uid;
1253	ks.st_gid = (s32) stat->gid;
1254	ks.st_rdev = sysv_encode_dev (stat->rdev);
1255	ks.st_pad2[0] = ks.st_pad2[1] = 0;
1256	ks.st_size = (long long) stat->size;
1257	ks.st_pad3 = 0;
1258
1259	/* XXX hackety hack... */
1260	ks.st_atime.tv_sec = (s32) stat->atime.tv_sec;
1261	ks.st_atime.tv_nsec = stat->atime.tv_nsec;
1262	ks.st_mtime.tv_sec = (s32) stat->mtime.tv_sec;
1263	ks.st_mtime.tv_nsec = stat->mtime.tv_nsec;
1264	ks.st_ctime.tv_sec = (s32) stat->ctime.tv_sec;
1265	ks.st_ctime.tv_nsec = stat->ctime.tv_nsec;
1266
1267	ks.st_blksize = (s32) stat->blksize;
1268	ks.st_blocks = (long long) stat->blocks;
1269	memset(ks.st_fstype, 0, 16);
1270	ks.st_pad4[0] = ks.st_pad4[1] = ks.st_pad4[2] = ks.st_pad4[3] = 0;
1271	ks.st_pad4[4] = ks.st_pad4[5] = ks.st_pad4[6] = ks.st_pad4[7] = 0;
1272
1273	/* Now write it all back. */
1274	return copy_to_user(ubuf, &ks, sizeof(ks)) ? -EFAULT : 0;
1275}
1276
1277asmlinkage int irix_xstat(int version, char *filename, struct stat *statbuf)
1278{
1279	int retval;
1280	struct kstat stat;
1281
1282#ifdef DEBUG_XSTAT
1283	printk("[%s:%d] Wheee.. irix_xstat(%d,%s,%p) ",
1284	       current->comm, current->pid, version, filename, statbuf);
1285#endif
1286
1287	retval = vfs_stat(filename, &stat);
1288	if (!retval) {
1289		switch(version) {
1290			case 2:
1291				retval = irix_xstat32_xlate(&stat, statbuf);
1292				break;
1293			case 3:
1294				retval = irix_xstat64_xlate(&stat, statbuf);
1295				break;
1296			default:
1297				retval = -EINVAL;
1298		}
1299	}
1300	return retval;
1301}
1302
1303asmlinkage int irix_lxstat(int version, char *filename, struct stat *statbuf)
1304{
1305	int error;
1306	struct kstat stat;
1307
1308#ifdef DEBUG_XSTAT
1309	printk("[%s:%d] Wheee.. irix_lxstat(%d,%s,%p) ",
1310	       current->comm, current->pid, version, filename, statbuf);
1311#endif
1312
1313	error = vfs_lstat(filename, &stat);
1314
1315	if (!error) {
1316		switch (version) {
1317			case 2:
1318				error = irix_xstat32_xlate(&stat, statbuf);
1319				break;
1320			case 3:
1321				error = irix_xstat64_xlate(&stat, statbuf);
1322				break;
1323			default:
1324				error = -EINVAL;
1325		}
1326	}
1327	return error;
1328}
1329
1330asmlinkage int irix_fxstat(int version, int fd, struct stat *statbuf)
1331{
1332	int error;
1333	struct kstat stat;
1334
1335#ifdef DEBUG_XSTAT
1336	printk("[%s:%d] Wheee.. irix_fxstat(%d,%d,%p) ",
1337	       current->comm, current->pid, version, fd, statbuf);
1338#endif
1339
1340	error = vfs_fstat(fd, &stat);
1341	if (!error) {
1342		switch (version) {
1343			case 2:
1344				error = irix_xstat32_xlate(&stat, statbuf);
1345				break;
1346			case 3:
1347				error = irix_xstat64_xlate(&stat, statbuf);
1348				break;
1349			default:
1350				error = -EINVAL;
1351		}
1352	}
1353	return error;
1354}
1355
1356asmlinkage int irix_xmknod(int ver, char *filename, int mode, unsigned dev)
1357{
1358	int retval;
1359	printk("[%s:%d] Wheee.. irix_xmknod(%d,%s,%x,%x)\n",
1360	       current->comm, current->pid, ver, filename, mode, dev);
1361
1362	switch(ver) {
1363	case 2:
1364		/* shouldn't we convert here as well as on stat()? */
1365		retval = sys_mknod(filename, mode, dev);
1366		break;
1367
1368	default:
1369		retval = -EINVAL;
1370		break;
1371	};
1372
1373	return retval;
1374}
1375
1376asmlinkage int irix_swapctl(int cmd, char *arg)
1377{
1378	printk("[%s:%d] Wheee.. irix_swapctl(%d,%p)\n",
1379	       current->comm, current->pid, cmd, arg);
1380
1381	return -EINVAL;
1382}
1383
1384struct irix_statvfs {
1385	u32 f_bsize; u32 f_frsize; u32 f_blocks;
1386	u32 f_bfree; u32 f_bavail; u32 f_files; u32 f_ffree; u32 f_favail;
1387	u32 f_fsid; char f_basetype[16];
1388	u32 f_flag; u32 f_namemax;
1389	char	f_fstr[32]; u32 f_filler[16];
1390};
1391
1392asmlinkage int irix_statvfs(char *fname, struct irix_statvfs *buf)
1393{
1394	struct nameidata nd;
1395	struct kstatfs kbuf;
1396	int error, i;
1397
1398	printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
1399	       current->comm, current->pid, fname, buf);
1400	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1401		error = -EFAULT;
1402		goto out;
1403	}
1404	error = user_path_walk(fname, &nd);
1405	if (error)
1406		goto out;
1407	error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1408	if (error)
1409		goto dput_and_out;
1410
1411	__put_user(kbuf.f_bsize, &buf->f_bsize);
1412	__put_user(kbuf.f_frsize, &buf->f_frsize);
1413	__put_user(kbuf.f_blocks, &buf->f_blocks);
1414	__put_user(kbuf.f_bfree, &buf->f_bfree);
1415	__put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
1416	__put_user(kbuf.f_files, &buf->f_files);
1417	__put_user(kbuf.f_ffree, &buf->f_ffree);
1418	__put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
1419#ifdef __MIPSEB__
1420	__put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1421#else
1422	__put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1423#endif
1424	for (i = 0; i < 16; i++)
1425		__put_user(0, &buf->f_basetype[i]);
1426	__put_user(0, &buf->f_flag);
1427	__put_user(kbuf.f_namelen, &buf->f_namemax);
1428	for (i = 0; i < 32; i++)
1429		__put_user(0, &buf->f_fstr[i]);
1430
1431	error = 0;
1432
1433dput_and_out:
1434	path_release(&nd);
1435out:
1436	return error;
1437}
1438
1439asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs *buf)
1440{
1441	struct kstatfs kbuf;
1442	struct file *file;
1443	int error, i;
1444
1445	printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
1446	       current->comm, current->pid, fd, buf);
1447
1448	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1449		error = -EFAULT;
1450		goto out;
1451	}
1452	if (!(file = fget(fd))) {
1453		error = -EBADF;
1454		goto out;
1455	}
1456	error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1457	if (error)
1458		goto out_f;
1459
1460	__put_user(kbuf.f_bsize, &buf->f_bsize);
1461	__put_user(kbuf.f_frsize, &buf->f_frsize);
1462	__put_user(kbuf.f_blocks, &buf->f_blocks);
1463	__put_user(kbuf.f_bfree, &buf->f_bfree);
1464	__put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1465	__put_user(kbuf.f_files, &buf->f_files);
1466	__put_user(kbuf.f_ffree, &buf->f_ffree);
1467	__put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1468#ifdef __MIPSEB__
1469	__put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1470#else
1471	__put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1472#endif
1473	for(i = 0; i < 16; i++)
1474		__put_user(0, &buf->f_basetype[i]);
1475	__put_user(0, &buf->f_flag);
1476	__put_user(kbuf.f_namelen, &buf->f_namemax);
1477	__clear_user(&buf->f_fstr, sizeof(buf->f_fstr));
1478
1479out_f:
1480	fput(file);
1481out:
1482	return error;
1483}
1484
1485asmlinkage int irix_priocntl(struct pt_regs *regs)
1486{
1487	printk("[%s:%d] Wheee.. irix_priocntl()\n",
1488	       current->comm, current->pid);
1489
1490	return -EINVAL;
1491}
1492
1493asmlinkage int irix_sigqueue(int pid, int sig, int code, int val)
1494{
1495	printk("[%s:%d] Wheee.. irix_sigqueue(%d,%d,%d,%d)\n",
1496	       current->comm, current->pid, pid, sig, code, val);
1497
1498	return -EINVAL;
1499}
1500
1501asmlinkage int irix_truncate64(char *name, int pad, int size1, int size2)
1502{
1503	int retval;
1504
1505	if (size1) {
1506		retval = -EINVAL;
1507		goto out;
1508	}
1509	retval = sys_truncate(name, size2);
1510
1511out:
1512	return retval;
1513}
1514
1515asmlinkage int irix_ftruncate64(int fd, int pad, int size1, int size2)
1516{
1517	int retval;
1518
1519	if (size1) {
1520		retval = -EINVAL;
1521		goto out;
1522	}
1523	retval = sys_ftruncate(fd, size2);
1524
1525out:
1526	return retval;
1527}
1528
1529asmlinkage int irix_mmap64(struct pt_regs *regs)
1530{
1531	int len, prot, flags, fd, off1, off2, error, base = 0;
1532	unsigned long addr, pgoff, *sp;
1533	struct file *file = NULL;
1534
1535	if (regs->regs[2] == 1000)
1536		base = 1;
1537	sp = (unsigned long *) (regs->regs[29] + 16);
1538	addr = regs->regs[base + 4];
1539	len = regs->regs[base + 5];
1540	prot = regs->regs[base + 6];
1541	if (!base) {
1542		flags = regs->regs[base + 7];
1543		if (!access_ok(VERIFY_READ, sp, (4 * sizeof(unsigned long)))) {
1544			error = -EFAULT;
1545			goto out;
1546		}
1547		fd = sp[0];
1548		__get_user(off1, &sp[1]);
1549		__get_user(off2, &sp[2]);
1550	} else {
1551		if (!access_ok(VERIFY_READ, sp, (5 * sizeof(unsigned long)))) {
1552			error = -EFAULT;
1553			goto out;
1554		}
1555		__get_user(flags, &sp[0]);
1556		__get_user(fd, &sp[1]);
1557		__get_user(off1, &sp[2]);
1558		__get_user(off2, &sp[3]);
1559	}
1560
1561	if (off1 & PAGE_MASK) {
1562		error = -EOVERFLOW;
1563		goto out;
1564	}
1565
1566	pgoff = (off1 << (32 - PAGE_SHIFT)) | (off2 >> PAGE_SHIFT);
1567
1568	if (!(flags & MAP_ANONYMOUS)) {
1569		if (!(file = fget(fd))) {
1570			error = -EBADF;
1571			goto out;
1572		}
1573
1574		/* Ok, bad taste hack follows, try to think in something else
1575		   when reading this */
1576		if (flags & IRIX_MAP_AUTOGROW) {
1577			unsigned long old_pos;
1578			long max_size = off2 + len;
1579
1580			if (max_size > file->f_dentry->d_inode->i_size) {
1581				old_pos = sys_lseek (fd, max_size - 1, 0);
1582				sys_write (fd, "", 1);
1583				sys_lseek (fd, old_pos, 0);
1584			}
1585		}
1586	}
1587
1588	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1589
1590	down_write(&current->mm->mmap_sem);
1591	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
1592	up_write(&current->mm->mmap_sem);
1593
1594	if (file)
1595		fput(file);
1596
1597out:
1598	return error;
1599}
1600
1601asmlinkage int irix_dmi(struct pt_regs *regs)
1602{
1603	printk("[%s:%d] Wheee.. irix_dmi()\n",
1604	       current->comm, current->pid);
1605
1606	return -EINVAL;
1607}
1608
1609asmlinkage int irix_pread(int fd, char *buf, int cnt, int off64,
1610			  int off1, int off2)
1611{
1612	printk("[%s:%d] Wheee.. irix_pread(%d,%p,%d,%d,%d,%d)\n",
1613	       current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1614
1615	return -EINVAL;
1616}
1617
1618asmlinkage int irix_pwrite(int fd, char *buf, int cnt, int off64,
1619			   int off1, int off2)
1620{
1621	printk("[%s:%d] Wheee.. irix_pwrite(%d,%p,%d,%d,%d,%d)\n",
1622	       current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1623
1624	return -EINVAL;
1625}
1626
1627asmlinkage int irix_sgifastpath(int cmd, unsigned long arg0, unsigned long arg1,
1628				unsigned long arg2, unsigned long arg3,
1629				unsigned long arg4, unsigned long arg5)
1630{
1631	printk("[%s:%d] Wheee.. irix_fastpath(%d,%08lx,%08lx,%08lx,%08lx,"
1632	       "%08lx,%08lx)\n",
1633	       current->comm, current->pid, cmd, arg0, arg1, arg2,
1634	       arg3, arg4, arg5);
1635
1636	return -EINVAL;
1637}
1638
1639struct irix_statvfs64 {
1640	u32  f_bsize; u32 f_frsize;
1641	u64  f_blocks; u64 f_bfree; u64 f_bavail;
1642	u64  f_files; u64 f_ffree; u64 f_favail;
1643	u32  f_fsid;
1644	char f_basetype[16];
1645	u32  f_flag; u32 f_namemax;
1646	char f_fstr[32];
1647	u32  f_filler[16];
1648};
1649
1650asmlinkage int irix_statvfs64(char *fname, struct irix_statvfs64 *buf)
1651{
1652	struct nameidata nd;
1653	struct kstatfs kbuf;
1654	int error, i;
1655
1656	printk("[%s:%d] Wheee.. irix_statvfs64(%s,%p)\n",
1657	       current->comm, current->pid, fname, buf);
1658	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs64))) {
1659		error = -EFAULT;
1660		goto out;
1661	}
1662	error = user_path_walk(fname, &nd);
1663	if (error)
1664		goto out;
1665	error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1666	if (error)
1667		goto dput_and_out;
1668
1669	__put_user(kbuf.f_bsize, &buf->f_bsize);
1670	__put_user(kbuf.f_frsize, &buf->f_frsize);
1671	__put_user(kbuf.f_blocks, &buf->f_blocks);
1672	__put_user(kbuf.f_bfree, &buf->f_bfree);
1673	__put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
1674	__put_user(kbuf.f_files, &buf->f_files);
1675	__put_user(kbuf.f_ffree, &buf->f_ffree);
1676	__put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
1677#ifdef __MIPSEB__
1678	__put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1679#else
1680	__put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1681#endif
1682	for(i = 0; i < 16; i++)
1683		__put_user(0, &buf->f_basetype[i]);
1684	__put_user(0, &buf->f_flag);
1685	__put_user(kbuf.f_namelen, &buf->f_namemax);
1686	for(i = 0; i < 32; i++)
1687		__put_user(0, &buf->f_fstr[i]);
1688
1689	error = 0;
1690
1691dput_and_out:
1692	path_release(&nd);
1693out:
1694	return error;
1695}
1696
1697asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs *buf)
1698{
1699	struct kstatfs kbuf;
1700	struct file *file;
1701	int error, i;
1702
1703	printk("[%s:%d] Wheee.. irix_fstatvfs64(%d,%p)\n",
1704	       current->comm, current->pid, fd, buf);
1705
1706	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1707		error = -EFAULT;
1708		goto out;
1709	}
1710	if (!(file = fget(fd))) {
1711		error = -EBADF;
1712		goto out;
1713	}
1714	error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1715	if (error)
1716		goto out_f;
1717
1718	__put_user(kbuf.f_bsize, &buf->f_bsize);
1719	__put_user(kbuf.f_frsize, &buf->f_frsize);
1720	__put_user(kbuf.f_blocks, &buf->f_blocks);
1721	__put_user(kbuf.f_bfree, &buf->f_bfree);
1722	__put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
1723	__put_user(kbuf.f_files, &buf->f_files);
1724	__put_user(kbuf.f_ffree, &buf->f_ffree);
1725	__put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
1726#ifdef __MIPSEB__
1727	__put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1728#else
1729	__put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1730#endif
1731	for(i = 0; i < 16; i++)
1732		__put_user(0, &buf->f_basetype[i]);
1733	__put_user(0, &buf->f_flag);
1734	__put_user(kbuf.f_namelen, &buf->f_namemax);
1735	__clear_user(buf->f_fstr, sizeof(buf->f_fstr[i]));
1736
1737out_f:
1738	fput(file);
1739out:
1740	return error;
1741}
1742
1743asmlinkage int irix_getmountid(char *fname, unsigned long *midbuf)
1744{
1745	int err = 0;
1746
1747	printk("[%s:%d] irix_getmountid(%s, %p)\n",
1748	       current->comm, current->pid, fname, midbuf);
1749	if (!access_ok(VERIFY_WRITE, midbuf, (sizeof(unsigned long) * 4)))
1750		return -EFAULT;
1751
1752	/*
1753	 * The idea with this system call is that when trying to determine
1754	 * 'pwd' and it's a toss-up for some reason, userland can use the
1755	 * fsid of the filesystem to try and make the right decision, but
1756	 * we don't have this so for now. XXX
1757	 */
1758	err |= __put_user(0, &midbuf[0]);
1759	err |= __put_user(0, &midbuf[1]);
1760	err |= __put_user(0, &midbuf[2]);
1761	err |= __put_user(0, &midbuf[3]);
1762
1763	return err;
1764}
1765
1766asmlinkage int irix_nsproc(unsigned long entry, unsigned long mask,
1767			   unsigned long arg, unsigned long sp, int slen)
1768{
1769	printk("[%s:%d] Wheee.. irix_nsproc(%08lx,%08lx,%08lx,%08lx,%d)\n",
1770	       current->comm, current->pid, entry, mask, arg, sp, slen);
1771
1772	return -EINVAL;
1773}
1774
1775#undef DEBUG_GETDENTS
1776
1777struct irix_dirent32 {
1778	u32  d_ino;
1779	u32  d_off;
1780	unsigned short  d_reclen;
1781	char d_name[1];
1782};
1783
1784struct irix_dirent32_callback {
1785	struct irix_dirent32 *current_dir;
1786	struct irix_dirent32 *previous;
1787	int count;
1788	int error;
1789};
1790
1791#define NAME_OFFSET32(de) ((int) ((de)->d_name - (char *) (de)))
1792#define ROUND_UP32(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
1793
1794static int irix_filldir32(void *__buf, const char *name, int namlen,
1795                          loff_t offset, ino_t ino, unsigned int d_type)
1796{
1797	struct irix_dirent32 *dirent;
1798	struct irix_dirent32_callback *buf =
1799		 (struct irix_dirent32_callback *)__buf;
1800	unsigned short reclen = ROUND_UP32(NAME_OFFSET32(dirent) + namlen + 1);
1801
1802#ifdef DEBUG_GETDENTS
1803	printk("\nirix_filldir32[reclen<%d>namlen<%d>count<%d>]",
1804	       reclen, namlen, buf->count);
1805#endif
1806	buf->error = -EINVAL;	/* only used if we fail.. */
1807	if (reclen > buf->count)
1808		return -EINVAL;
1809	dirent = buf->previous;
1810	if (dirent)
1811		__put_user(offset, &dirent->d_off);
1812	dirent = buf->current_dir;
1813	buf->previous = dirent;
1814	__put_user(ino, &dirent->d_ino);
1815	__put_user(reclen, &dirent->d_reclen);
1816	copy_to_user(dirent->d_name, name, namlen);
1817	__put_user(0, &dirent->d_name[namlen]);
1818	((char *) dirent) += reclen;
1819	buf->current_dir = dirent;
1820	buf->count -= reclen;
1821
1822	return 0;
1823}
1824
1825asmlinkage int irix_ngetdents(unsigned int fd, void * dirent,
1826	unsigned int count, int *eob)
1827{
1828	struct file *file;
1829	struct irix_dirent32 *lastdirent;
1830	struct irix_dirent32_callback buf;
1831	int error;
1832
1833#ifdef DEBUG_GETDENTS
1834	printk("[%s:%d] ngetdents(%d, %p, %d, %p) ", current->comm,
1835	       current->pid, fd, dirent, count, eob);
1836#endif
1837	error = -EBADF;
1838	file = fget(fd);
1839	if (!file)
1840		goto out;
1841
1842	buf.current_dir = (struct irix_dirent32 *) dirent;
1843	buf.previous = NULL;
1844	buf.count = count;
1845	buf.error = 0;
1846
1847	error = vfs_readdir(file, irix_filldir32, &buf);
1848	if (error < 0)
1849		goto out_putf;
1850
1851	error = buf.error;
1852	lastdirent = buf.previous;
1853	if (lastdirent) {
1854		put_user(file->f_pos, &lastdirent->d_off);
1855		error = count - buf.count;
1856	}
1857
1858	if (put_user(0, eob) < 0) {
1859		error = -EFAULT;
1860		goto out_putf;
1861	}
1862
1863#ifdef DEBUG_GETDENTS
1864	printk("eob=%d returning %d\n", *eob, count - buf.count);
1865#endif
1866	error = count - buf.count;
1867
1868out_putf:
1869	fput(file);
1870out:
1871	return error;
1872}
1873
1874struct irix_dirent64 {
1875	u64            d_ino;
1876	u64            d_off;
1877	unsigned short d_reclen;
1878	char           d_name[1];
1879};
1880
1881struct irix_dirent64_callback {
1882	struct irix_dirent64 *curr;
1883	struct irix_dirent64 *previous;
1884	int count;
1885	int error;
1886};
1887
1888#define NAME_OFFSET64(de) ((int) ((de)->d_name - (char *) (de)))
1889#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
1890
1891static int irix_filldir64(void * __buf, const char * name, int namlen,
1892			  loff_t offset, ino_t ino, unsigned int d_type)
1893{
1894	struct irix_dirent64 *dirent;
1895	struct irix_dirent64_callback * buf =
1896		(struct irix_dirent64_callback *) __buf;
1897	unsigned short reclen = ROUND_UP64(NAME_OFFSET64(dirent) + namlen + 1);
1898
1899	buf->error = -EINVAL;	/* only used if we fail.. */
1900	if (reclen > buf->count)
1901		return -EINVAL;
1902	dirent = buf->previous;
1903	if (dirent)
1904		__put_user(offset, &dirent->d_off);
1905	dirent = buf->curr;
1906	buf->previous = dirent;
1907	__put_user(ino, &dirent->d_ino);
1908	__put_user(reclen, &dirent->d_reclen);
1909	__copy_to_user(dirent->d_name, name, namlen);
1910	__put_user(0, &dirent->d_name[namlen]);
1911	((char *) dirent) += reclen;
1912	buf->curr = dirent;
1913	buf->count -= reclen;
1914
1915	return 0;
1916}
1917
1918asmlinkage int irix_getdents64(int fd, void *dirent, int cnt)
1919{
1920	struct file *file;
1921	struct irix_dirent64 *lastdirent;
1922	struct irix_dirent64_callback buf;
1923	int error;
1924
1925#ifdef DEBUG_GETDENTS
1926	printk("[%s:%d] getdents64(%d, %p, %d) ", current->comm,
1927	       current->pid, fd, dirent, cnt);
1928#endif
1929	error = -EBADF;
1930	if (!(file = fget(fd)))
1931		goto out;
1932
1933	error = -EFAULT;
1934	if (!access_ok(VERIFY_WRITE, dirent, cnt))
1935		goto out_f;
1936
1937	error = -EINVAL;
1938	if (cnt < (sizeof(struct irix_dirent64) + 255))
1939		goto out_f;
1940
1941	buf.curr = (struct irix_dirent64 *) dirent;
1942	buf.previous = NULL;
1943	buf.count = cnt;
1944	buf.error = 0;
1945	error = vfs_readdir(file, irix_filldir64, &buf);
1946	if (error < 0)
1947		goto out_f;
1948	lastdirent = buf.previous;
1949	if (!lastdirent) {
1950		error = buf.error;
1951		goto out_f;
1952	}
1953	lastdirent->d_off = (u64) file->f_pos;
1954#ifdef DEBUG_GETDENTS
1955	printk("returning %d\n", cnt - buf.count);
1956#endif
1957	error = cnt - buf.count;
1958
1959out_f:
1960	fput(file);
1961out:
1962	return error;
1963}
1964
1965asmlinkage int irix_ngetdents64(int fd, void *dirent, int cnt, int *eob)
1966{
1967	struct file *file;
1968	struct irix_dirent64 *lastdirent;
1969	struct irix_dirent64_callback buf;
1970	int error;
1971
1972#ifdef DEBUG_GETDENTS
1973	printk("[%s:%d] ngetdents64(%d, %p, %d) ", current->comm,
1974	       current->pid, fd, dirent, cnt);
1975#endif
1976	error = -EBADF;
1977	if (!(file = fget(fd)))
1978		goto out;
1979
1980	error = -EFAULT;
1981	if (!access_ok(VERIFY_WRITE, dirent, cnt) ||
1982	    !access_ok(VERIFY_WRITE, eob, sizeof(*eob)))
1983		goto out_f;
1984
1985	error = -EINVAL;
1986	if (cnt < (sizeof(struct irix_dirent64) + 255))
1987		goto out_f;
1988
1989	*eob = 0;
1990	buf.curr = (struct irix_dirent64 *) dirent;
1991	buf.previous = NULL;
1992	buf.count = cnt;
1993	buf.error = 0;
1994	error = vfs_readdir(file, irix_filldir64, &buf);
1995	if (error < 0)
1996		goto out_f;
1997	lastdirent = buf.previous;
1998	if (!lastdirent) {
1999		error = buf.error;
2000		goto out_f;
2001	}
2002	lastdirent->d_off = (u64) file->f_pos;
2003#ifdef DEBUG_GETDENTS
2004	printk("eob=%d returning %d\n", *eob, cnt - buf.count);
2005#endif
2006	error = cnt - buf.count;
2007
2008out_f:
2009	fput(file);
2010out:
2011	return error;
2012}
2013
2014asmlinkage int irix_uadmin(unsigned long op, unsigned long func, unsigned long arg)
2015{
2016	int retval;
2017
2018	switch (op) {
2019	case 1:
2020		/* Reboot */
2021		printk("[%s:%d] irix_uadmin: Wants to reboot...\n",
2022		       current->comm, current->pid);
2023		retval = -EINVAL;
2024		goto out;
2025
2026	case 2:
2027		/* Shutdown */
2028		printk("[%s:%d] irix_uadmin: Wants to shutdown...\n",
2029		       current->comm, current->pid);
2030		retval = -EINVAL;
2031		goto out;
2032
2033	case 4:
2034		/* Remount-root */
2035		printk("[%s:%d] irix_uadmin: Wants to remount root...\n",
2036		       current->comm, current->pid);
2037		retval = -EINVAL;
2038		goto out;
2039
2040	case 8:
2041		/* Kill all tasks. */
2042		printk("[%s:%d] irix_uadmin: Wants to kill all tasks...\n",
2043		       current->comm, current->pid);
2044		retval = -EINVAL;
2045		goto out;
2046
2047	case 256:
2048		/* Set magic mushrooms... */
2049		printk("[%s:%d] irix_uadmin: Wants to set magic mushroom[%d]...\n",
2050		       current->comm, current->pid, (int) func);
2051		retval = -EINVAL;
2052		goto out;
2053
2054	default:
2055		printk("[%s:%d] irix_uadmin: Unknown operation [%d]...\n",
2056		       current->comm, current->pid, (int) op);
2057		retval = -EINVAL;
2058		goto out;
2059	};
2060
2061out:
2062	return retval;
2063}
2064
2065asmlinkage int irix_utssys(char *inbuf, int arg, int type, char *outbuf)
2066{
2067	int retval;
2068
2069	switch(type) {
2070	case 0:
2071		/* uname() */
2072		retval = irix_uname((struct iuname *)inbuf);
2073		goto out;
2074
2075	case 2:
2076		/* ustat() */
2077		printk("[%s:%d] irix_utssys: Wants to do ustat()\n",
2078		       current->comm, current->pid);
2079		retval = -EINVAL;
2080		goto out;
2081
2082	case 3:
2083		/* fusers() */
2084		printk("[%s:%d] irix_utssys: Wants to do fusers()\n",
2085		       current->comm, current->pid);
2086		retval = -EINVAL;
2087		goto out;
2088
2089	default:
2090		printk("[%s:%d] irix_utssys: Wants to do unknown type[%d]\n",
2091		       current->comm, current->pid, (int) type);
2092		retval = -EINVAL;
2093		goto out;
2094	}
2095
2096out:
2097	return retval;
2098}
2099
2100#undef DEBUG_FCNTL
2101
2102#define IRIX_F_ALLOCSP 10
2103
2104asmlinkage int irix_fcntl(int fd, int cmd, int arg)
2105{
2106	int retval;
2107
2108#ifdef DEBUG_FCNTL
2109	printk("[%s:%d] irix_fcntl(%d, %d, %d) ", current->comm,
2110	       current->pid, fd, cmd, arg);
2111#endif
2112	if (cmd == IRIX_F_ALLOCSP){
2113		return 0;
2114	}
2115	retval = sys_fcntl(fd, cmd, arg);
2116#ifdef DEBUG_FCNTL
2117	printk("%d\n", retval);
2118#endif
2119	return retval;
2120}
2121
2122asmlinkage int irix_ulimit(int cmd, int arg)
2123{
2124	int retval;
2125
2126	switch(cmd) {
2127	case 1:
2128		printk("[%s:%d] irix_ulimit: Wants to get file size limit.\n",
2129		       current->comm, current->pid);
2130		retval = -EINVAL;
2131		goto out;
2132
2133	case 2:
2134		printk("[%s:%d] irix_ulimit: Wants to set file size limit.\n",
2135		       current->comm, current->pid);
2136		retval = -EINVAL;
2137		goto out;
2138
2139	case 3:
2140		printk("[%s:%d] irix_ulimit: Wants to get brk limit.\n",
2141		       current->comm, current->pid);
2142		retval = -EINVAL;
2143		goto out;
2144
2145	case 4:
2146#if 0
2147		printk("[%s:%d] irix_ulimit: Want…

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