Merge /spare/repo/linux-2.6/
[linux-2.6] / arch / mips / kernel / sysirix.c
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
41 extern 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
48 asmlinkage 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
93 asmlinkage 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
242 extern unsigned long irix_mapelf(int fd, struct elf_phdr *user_phdrp, int cnt);
243 extern int getrusage(struct task_struct *p, int who, struct rusage __user *ru);
244 extern char *prom_getenv(char *name);
245 extern 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
268 asmlinkage 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
521 out:
522         return retval;
523 }
524
525 asmlinkage 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  */
534 asmlinkage 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
598 out:
599         up_write(&mm->mmap_sem);
600         return ret;
601 }
602
603 asmlinkage int irix_getpid(struct pt_regs *regs)
604 {
605         regs->regs[3] = current->real_parent->pid;
606         return current->pid;
607 }
608
609 asmlinkage int irix_getuid(struct pt_regs *regs)
610 {
611         regs->regs[3] = current->euid;
612         return current->uid;
613 }
614
615 asmlinkage int irix_getgid(struct pt_regs *regs)
616 {
617         regs->regs[3] = current->egid;
618         return current->gid;
619 }
620
621 asmlinkage 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         ntp_clear();
636         write_sequnlock_irq(&xtime_lock);
637
638         return 0;
639 }
640
641 static inline void jiffiestotv(unsigned long jiffies, struct timeval *value)
642 {
643         value->tv_usec = (jiffies % HZ) * (1000000 / HZ);
644         value->tv_sec = jiffies / HZ;
645 }
646
647 static inline void getitimer_real(struct itimerval *value)
648 {
649         register unsigned long val, interval;
650
651         interval = current->it_real_incr;
652         val = 0;
653         if (del_timer(&current->real_timer)) {
654                 unsigned long now = jiffies;
655                 val = current->real_timer.expires;
656                 add_timer(&current->real_timer);
657                 /* look out for negative/zero itimer.. */
658                 if (val <= now)
659                         val = now+1;
660                 val -= now;
661         }
662         jiffiestotv(val, &value->it_value);
663         jiffiestotv(interval, &value->it_interval);
664 }
665
666 asmlinkage unsigned int irix_alarm(unsigned int seconds)
667 {
668         struct itimerval it_new, it_old;
669         unsigned int oldalarm;
670
671         if (!seconds) {
672                 getitimer_real(&it_old);
673                 del_timer(&current->real_timer);
674         } else {
675                 it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0;
676                 it_new.it_value.tv_sec = seconds;
677                 it_new.it_value.tv_usec = 0;
678                 do_setitimer(ITIMER_REAL, &it_new, &it_old);
679         }
680         oldalarm = it_old.it_value.tv_sec;
681         /*
682          * ehhh.. We can't return 0 if we have an alarm pending ...
683          * And we'd better return too much than too little anyway
684          */
685         if (it_old.it_value.tv_usec)
686                 oldalarm++;
687
688         return oldalarm;
689 }
690
691 asmlinkage int irix_pause(void)
692 {
693         current->state = TASK_INTERRUPTIBLE;
694         schedule();
695
696         return -EINTR;
697 }
698
699 /* XXX need more than this... */
700 asmlinkage int irix_mount(char *dev_name, char *dir_name, unsigned long flags,
701                           char *type, void *data, int datalen)
702 {
703         printk("[%s:%d] irix_mount(%p,%p,%08lx,%p,%p,%d)\n",
704                current->comm, current->pid,
705                dev_name, dir_name, flags, type, data, datalen);
706
707         return sys_mount(dev_name, dir_name, type, flags, data);
708 }
709
710 struct irix_statfs {
711         short f_type;
712         long  f_bsize, f_frsize, f_blocks, f_bfree, f_files, f_ffree;
713         char  f_fname[6], f_fpack[6];
714 };
715
716 asmlinkage int irix_statfs(const char *path, struct irix_statfs *buf,
717                            int len, int fs_type)
718 {
719         struct nameidata nd;
720         struct kstatfs kbuf;
721         int error, i;
722
723         /* We don't support this feature yet. */
724         if (fs_type) {
725                 error = -EINVAL;
726                 goto out;
727         }
728         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
729                 error = -EFAULT;
730                 goto out;
731         }
732         error = user_path_walk(path, &nd);
733         if (error)
734                 goto out;
735
736         error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
737         if (error)
738                 goto dput_and_out;
739
740         __put_user(kbuf.f_type, &buf->f_type);
741         __put_user(kbuf.f_bsize, &buf->f_bsize);
742         __put_user(kbuf.f_frsize, &buf->f_frsize);
743         __put_user(kbuf.f_blocks, &buf->f_blocks);
744         __put_user(kbuf.f_bfree, &buf->f_bfree);
745         __put_user(kbuf.f_files, &buf->f_files);
746         __put_user(kbuf.f_ffree, &buf->f_ffree);
747         for (i = 0; i < 6; i++) {
748                 __put_user(0, &buf->f_fname[i]);
749                 __put_user(0, &buf->f_fpack[i]);
750         }
751         error = 0;
752
753 dput_and_out:
754         path_release(&nd);
755 out:
756         return error;
757 }
758
759 asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs *buf)
760 {
761         struct kstatfs kbuf;
762         struct file *file;
763         int error, i;
764
765         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
766                 error = -EFAULT;
767                 goto out;
768         }
769         if (!(file = fget(fd))) {
770                 error = -EBADF;
771                 goto out;
772         }
773
774         error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
775         if (error)
776                 goto out_f;
777
778         __put_user(kbuf.f_type, &buf->f_type);
779         __put_user(kbuf.f_bsize, &buf->f_bsize);
780         __put_user(kbuf.f_frsize, &buf->f_frsize);
781         __put_user(kbuf.f_blocks, &buf->f_blocks);
782         __put_user(kbuf.f_bfree, &buf->f_bfree);
783         __put_user(kbuf.f_files, &buf->f_files);
784         __put_user(kbuf.f_ffree, &buf->f_ffree);
785         for(i = 0; i < 6; i++) {
786                 __put_user(0, &buf->f_fname[i]);
787                 __put_user(0, &buf->f_fpack[i]);
788         }
789
790 out_f:
791         fput(file);
792 out:
793         return error;
794 }
795
796 asmlinkage int irix_setpgrp(int flags)
797 {
798         int error;
799
800 #ifdef DEBUG_PROCGRPS
801         printk("[%s:%d] setpgrp(%d) ", current->comm, current->pid, flags);
802 #endif
803         if(!flags)
804                 error = process_group(current);
805         else
806                 error = sys_setsid();
807 #ifdef DEBUG_PROCGRPS
808         printk("returning %d\n", process_group(current));
809 #endif
810
811         return error;
812 }
813
814 asmlinkage int irix_times(struct tms * tbuf)
815 {
816         int err = 0;
817
818         if (tbuf) {
819                 if (!access_ok(VERIFY_WRITE,tbuf,sizeof *tbuf))
820                         return -EFAULT;
821                 err |= __put_user(current->utime, &tbuf->tms_utime);
822                 err |= __put_user(current->stime, &tbuf->tms_stime);
823                 err |= __put_user(current->signal->cutime, &tbuf->tms_cutime);
824                 err |= __put_user(current->signal->cstime, &tbuf->tms_cstime);
825         }
826
827         return err;
828 }
829
830 asmlinkage int irix_exec(struct pt_regs *regs)
831 {
832         int error, base = 0;
833         char *filename;
834
835         if(regs->regs[2] == 1000)
836                 base = 1;
837         filename = getname((char *) (long)regs->regs[base + 4]);
838         error = PTR_ERR(filename);
839         if (IS_ERR(filename))
840                 return error;
841
842         error = do_execve(filename, (char **) (long)regs->regs[base + 5],
843                           (char **) 0, regs);
844         putname(filename);
845
846         return error;
847 }
848
849 asmlinkage int irix_exece(struct pt_regs *regs)
850 {
851         int error, base = 0;
852         char *filename;
853
854         if (regs->regs[2] == 1000)
855                 base = 1;
856         filename = getname((char *) (long)regs->regs[base + 4]);
857         error = PTR_ERR(filename);
858         if (IS_ERR(filename))
859                 return error;
860         error = do_execve(filename, (char **) (long)regs->regs[base + 5],
861                           (char **) (long)regs->regs[base + 6], regs);
862         putname(filename);
863
864         return error;
865 }
866
867 asmlinkage unsigned long irix_gethostid(void)
868 {
869         printk("[%s:%d]: irix_gethostid() called...\n",
870                current->comm, current->pid);
871
872         return -EINVAL;
873 }
874
875 asmlinkage unsigned long irix_sethostid(unsigned long val)
876 {
877         printk("[%s:%d]: irix_sethostid(%08lx) called...\n",
878                current->comm, current->pid, val);
879
880         return -EINVAL;
881 }
882
883 asmlinkage int irix_socket(int family, int type, int protocol)
884 {
885         switch(type) {
886         case 1:
887                 type = SOCK_DGRAM;
888                 break;
889
890         case 2:
891                 type = SOCK_STREAM;
892                 break;
893
894         case 3:
895                 type = 9; /* Invalid... */
896                 break;
897
898         case 4:
899                 type = SOCK_RAW;
900                 break;
901
902         case 5:
903                 type = SOCK_RDM;
904                 break;
905
906         case 6:
907                 type = SOCK_SEQPACKET;
908                 break;
909
910         default:
911                 break;
912         }
913
914         return sys_socket(family, type, protocol);
915 }
916
917 asmlinkage int irix_getdomainname(char *name, int len)
918 {
919         int error;
920
921         if (!access_ok(VERIFY_WRITE, name, len))
922                 return -EFAULT;
923
924         down_read(&uts_sem);
925         if (len > __NEW_UTS_LEN)
926                 len = __NEW_UTS_LEN;
927         error = 0;
928         if (copy_to_user(name, system_utsname.domainname, len))
929                 error = -EFAULT;
930         up_read(&uts_sem);
931
932         return error;
933 }
934
935 asmlinkage unsigned long irix_getpagesize(void)
936 {
937         return PAGE_SIZE;
938 }
939
940 asmlinkage int irix_msgsys(int opcode, unsigned long arg0, unsigned long arg1,
941                            unsigned long arg2, unsigned long arg3,
942                            unsigned long arg4)
943 {
944         switch (opcode) {
945         case 0:
946                 return sys_msgget((key_t) arg0, (int) arg1);
947         case 1:
948                 return sys_msgctl((int) arg0, (int) arg1, (struct msqid_ds *)arg2);
949         case 2:
950                 return sys_msgrcv((int) arg0, (struct msgbuf *) arg1,
951                                   (size_t) arg2, (long) arg3, (int) arg4);
952         case 3:
953                 return sys_msgsnd((int) arg0, (struct msgbuf *) arg1,
954                                   (size_t) arg2, (int) arg3);
955         default:
956                 return -EINVAL;
957         }
958 }
959
960 asmlinkage int irix_shmsys(int opcode, unsigned long arg0, unsigned long arg1,
961                            unsigned long arg2, unsigned long arg3)
962 {
963         switch (opcode) {
964         case 0:
965                 return do_shmat((int) arg0, (char *)arg1, (int) arg2,
966                                  (unsigned long *) arg3);
967         case 1:
968                 return sys_shmctl((int)arg0, (int)arg1, (struct shmid_ds *)arg2);
969         case 2:
970                 return sys_shmdt((char *)arg0);
971         case 3:
972                 return sys_shmget((key_t) arg0, (int) arg1, (int) arg2);
973         default:
974                 return -EINVAL;
975         }
976 }
977
978 asmlinkage int irix_semsys(int opcode, unsigned long arg0, unsigned long arg1,
979                            unsigned long arg2, int arg3)
980 {
981         switch (opcode) {
982         case 0:
983                 return sys_semctl((int) arg0, (int) arg1, (int) arg2,
984                                   (union semun) arg3);
985         case 1:
986                 return sys_semget((key_t) arg0, (int) arg1, (int) arg2);
987         case 2:
988                 return sys_semop((int) arg0, (struct sembuf *)arg1,
989                                  (unsigned int) arg2);
990         default:
991                 return -EINVAL;
992         }
993 }
994
995 static inline loff_t llseek(struct file *file, loff_t offset, int origin)
996 {
997         loff_t (*fn)(struct file *, loff_t, int);
998         loff_t retval;
999
1000         fn = default_llseek;
1001         if (file->f_op && file->f_op->llseek)
1002         fn = file->f_op->llseek;
1003         lock_kernel();
1004         retval = fn(file, offset, origin);
1005         unlock_kernel();
1006         return retval;
1007 }
1008
1009 asmlinkage int irix_lseek64(int fd, int _unused, int offhi, int offlow,
1010                             int origin)
1011 {
1012         int retval;
1013         struct file * file;
1014         loff_t offset;
1015
1016         retval = -EBADF;
1017         file = fget(fd);
1018         if (!file)
1019                 goto bad;
1020         retval = -EINVAL;
1021         if (origin > 2)
1022                 goto out_putf;
1023
1024         offset = llseek(file, ((loff_t) offhi << 32) | offlow, origin);
1025         retval = (int) offset;
1026
1027 out_putf:
1028         fput(file);
1029 bad:
1030         return retval;
1031 }
1032
1033 asmlinkage int irix_sginap(int ticks)
1034 {
1035         schedule_timeout_interruptible(ticks);
1036         return 0;
1037 }
1038
1039 asmlinkage int irix_sgikopt(char *istring, char *ostring, int len)
1040 {
1041         return -EINVAL;
1042 }
1043
1044 asmlinkage int irix_gettimeofday(struct timeval *tv)
1045 {
1046         time_t sec;
1047         long nsec, seq;
1048         int err;
1049
1050         if (!access_ok(VERIFY_WRITE, tv, sizeof(struct timeval)))
1051                 return -EFAULT;
1052
1053         do {
1054                 seq = read_seqbegin(&xtime_lock);
1055                 sec = xtime.tv_sec;
1056                 nsec = xtime.tv_nsec;
1057         } while (read_seqretry(&xtime_lock, seq));
1058
1059         err = __put_user(sec, &tv->tv_sec);
1060         err |= __put_user((nsec / 1000), &tv->tv_usec);
1061
1062         return err;
1063 }
1064
1065 #define IRIX_MAP_AUTOGROW 0x40
1066
1067 asmlinkage unsigned long irix_mmap32(unsigned long addr, size_t len, int prot,
1068                                      int flags, int fd, off_t offset)
1069 {
1070         struct file *file = NULL;
1071         unsigned long retval;
1072
1073         if (!(flags & MAP_ANONYMOUS)) {
1074                 if (!(file = fget(fd)))
1075                         return -EBADF;
1076
1077                 /* Ok, bad taste hack follows, try to think in something else
1078                  * when reading this.  */
1079                 if (flags & IRIX_MAP_AUTOGROW) {
1080                         unsigned long old_pos;
1081                         long max_size = offset + len;
1082
1083                         if (max_size > file->f_dentry->d_inode->i_size) {
1084                                 old_pos = sys_lseek (fd, max_size - 1, 0);
1085                                 sys_write (fd, "", 1);
1086                                 sys_lseek (fd, old_pos, 0);
1087                         }
1088                 }
1089         }
1090
1091         flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1092
1093         down_write(&current->mm->mmap_sem);
1094         retval = do_mmap(file, addr, len, prot, flags, offset);
1095         up_write(&current->mm->mmap_sem);
1096         if (file)
1097                 fput(file);
1098
1099         return retval;
1100 }
1101
1102 asmlinkage int irix_madvise(unsigned long addr, int len, int behavior)
1103 {
1104         printk("[%s:%d] Wheee.. irix_madvise(%08lx,%d,%d)\n",
1105                current->comm, current->pid, addr, len, behavior);
1106
1107         return -EINVAL;
1108 }
1109
1110 asmlinkage int irix_pagelock(char *addr, int len, int op)
1111 {
1112         printk("[%s:%d] Wheee.. irix_pagelock(%p,%d,%d)\n",
1113                current->comm, current->pid, addr, len, op);
1114
1115         return -EINVAL;
1116 }
1117
1118 asmlinkage int irix_quotactl(struct pt_regs *regs)
1119 {
1120         printk("[%s:%d] Wheee.. irix_quotactl()\n",
1121                current->comm, current->pid);
1122
1123         return -EINVAL;
1124 }
1125
1126 asmlinkage int irix_BSDsetpgrp(int pid, int pgrp)
1127 {
1128         int error;
1129
1130 #ifdef DEBUG_PROCGRPS
1131         printk("[%s:%d] BSDsetpgrp(%d, %d) ", current->comm, current->pid,
1132                pid, pgrp);
1133 #endif
1134         if(!pid)
1135                 pid = current->pid;
1136
1137         /* Wheee, weird sysv thing... */
1138         if ((pgrp == 0) && (pid == current->pid))
1139                 error = sys_setsid();
1140         else
1141                 error = sys_setpgid(pid, pgrp);
1142
1143 #ifdef DEBUG_PROCGRPS
1144         printk("error = %d\n", error);
1145 #endif
1146
1147         return error;
1148 }
1149
1150 asmlinkage int irix_systeminfo(int cmd, char *buf, int cnt)
1151 {
1152         printk("[%s:%d] Wheee.. irix_systeminfo(%d,%p,%d)\n",
1153                current->comm, current->pid, cmd, buf, cnt);
1154
1155         return -EINVAL;
1156 }
1157
1158 struct iuname {
1159         char sysname[257], nodename[257], release[257];
1160         char version[257], machine[257];
1161         char m_type[257], base_rel[257];
1162         char _unused0[257], _unused1[257], _unused2[257];
1163         char _unused3[257], _unused4[257], _unused5[257];
1164 };
1165
1166 asmlinkage int irix_uname(struct iuname *buf)
1167 {
1168         down_read(&uts_sem);
1169         if (copy_to_user(system_utsname.sysname, buf->sysname, 65)
1170             || copy_to_user(system_utsname.nodename, buf->nodename, 65)
1171             || copy_to_user(system_utsname.release, buf->release, 65)
1172             || copy_to_user(system_utsname.version, buf->version, 65)
1173             || copy_to_user(system_utsname.machine, buf->machine, 65)) {
1174                 return -EFAULT;
1175         }
1176         up_read(&uts_sem);
1177
1178         return 1;
1179 }
1180
1181 #undef DEBUG_XSTAT
1182
1183 static int irix_xstat32_xlate(struct kstat *stat, void *ubuf)
1184 {
1185         struct xstat32 {
1186                 u32 st_dev, st_pad1[3], st_ino, st_mode, st_nlink, st_uid, st_gid;
1187                 u32 st_rdev, st_pad2[2], st_size, st_pad3;
1188                 u32 st_atime0, st_atime1;
1189                 u32 st_mtime0, st_mtime1;
1190                 u32 st_ctime0, st_ctime1;
1191                 u32 st_blksize, st_blocks;
1192                 char st_fstype[16];
1193                 u32 st_pad4[8];
1194         } ub;
1195
1196         if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1197                 return -EOVERFLOW;
1198         ub.st_dev     = sysv_encode_dev(stat->dev);
1199         ub.st_ino     = stat->ino;
1200         ub.st_mode    = stat->mode;
1201         ub.st_nlink   = stat->nlink;
1202         SET_UID(ub.st_uid, stat->uid);
1203         SET_GID(ub.st_gid, stat->gid);
1204         ub.st_rdev    = sysv_encode_dev(stat->rdev);
1205 #if BITS_PER_LONG == 32
1206         if (stat->size > MAX_NON_LFS)
1207                 return -EOVERFLOW;
1208 #endif
1209         ub.st_size    = stat->size;
1210         ub.st_atime0  = stat->atime.tv_sec;
1211         ub.st_atime1  = stat->atime.tv_nsec;
1212         ub.st_mtime0  = stat->mtime.tv_sec;
1213         ub.st_mtime1  = stat->atime.tv_nsec;
1214         ub.st_ctime0  = stat->ctime.tv_sec;
1215         ub.st_ctime1  = stat->atime.tv_nsec;
1216         ub.st_blksize = stat->blksize;
1217         ub.st_blocks  = stat->blocks;
1218         strcpy (ub.st_fstype, "efs");
1219
1220         return copy_to_user(ubuf, &ub, sizeof(ub)) ? -EFAULT : 0;
1221 }
1222
1223 static int irix_xstat64_xlate(struct kstat *stat, void *ubuf)
1224 {
1225         struct xstat64 {
1226                 u32 st_dev; s32 st_pad1[3];
1227                 unsigned long long st_ino;
1228                 u32 st_mode;
1229                 u32 st_nlink; s32 st_uid; s32 st_gid; u32 st_rdev;
1230                 s32 st_pad2[2];
1231                 long long st_size;
1232                 s32 st_pad3;
1233                 struct { s32 tv_sec, tv_nsec; } st_atime, st_mtime, st_ctime;
1234                 s32 st_blksize;
1235                 long long  st_blocks;
1236                 char st_fstype[16];
1237                 s32 st_pad4[8];
1238         } ks;
1239
1240         if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1241                 return -EOVERFLOW;
1242
1243         ks.st_dev = sysv_encode_dev(stat->dev);
1244         ks.st_pad1[0] = ks.st_pad1[1] = ks.st_pad1[2] = 0;
1245         ks.st_ino = (unsigned long long) stat->ino;
1246         ks.st_mode = (u32) stat->mode;
1247         ks.st_nlink = (u32) stat->nlink;
1248         ks.st_uid = (s32) stat->uid;
1249         ks.st_gid = (s32) stat->gid;
1250         ks.st_rdev = sysv_encode_dev (stat->rdev);
1251         ks.st_pad2[0] = ks.st_pad2[1] = 0;
1252         ks.st_size = (long long) stat->size;
1253         ks.st_pad3 = 0;
1254
1255         /* XXX hackety hack... */
1256         ks.st_atime.tv_sec = (s32) stat->atime.tv_sec;
1257         ks.st_atime.tv_nsec = stat->atime.tv_nsec;
1258         ks.st_mtime.tv_sec = (s32) stat->mtime.tv_sec;
1259         ks.st_mtime.tv_nsec = stat->mtime.tv_nsec;
1260         ks.st_ctime.tv_sec = (s32) stat->ctime.tv_sec;
1261         ks.st_ctime.tv_nsec = stat->ctime.tv_nsec;
1262
1263         ks.st_blksize = (s32) stat->blksize;
1264         ks.st_blocks = (long long) stat->blocks;
1265         memset(ks.st_fstype, 0, 16);
1266         ks.st_pad4[0] = ks.st_pad4[1] = ks.st_pad4[2] = ks.st_pad4[3] = 0;
1267         ks.st_pad4[4] = ks.st_pad4[5] = ks.st_pad4[6] = ks.st_pad4[7] = 0;
1268
1269         /* Now write it all back. */
1270         return copy_to_user(ubuf, &ks, sizeof(ks)) ? -EFAULT : 0;
1271 }
1272
1273 asmlinkage int irix_xstat(int version, char *filename, struct stat *statbuf)
1274 {
1275         int retval;
1276         struct kstat stat;
1277
1278 #ifdef DEBUG_XSTAT
1279         printk("[%s:%d] Wheee.. irix_xstat(%d,%s,%p) ",
1280                current->comm, current->pid, version, filename, statbuf);
1281 #endif
1282
1283         retval = vfs_stat(filename, &stat);
1284         if (!retval) {
1285                 switch(version) {
1286                         case 2:
1287                                 retval = irix_xstat32_xlate(&stat, statbuf);
1288                                 break;
1289                         case 3:
1290                                 retval = irix_xstat64_xlate(&stat, statbuf);
1291                                 break;
1292                         default:
1293                                 retval = -EINVAL;
1294                 }
1295         }
1296         return retval;
1297 }
1298
1299 asmlinkage int irix_lxstat(int version, char *filename, struct stat *statbuf)
1300 {
1301         int error;
1302         struct kstat stat;
1303
1304 #ifdef DEBUG_XSTAT
1305         printk("[%s:%d] Wheee.. irix_lxstat(%d,%s,%p) ",
1306                current->comm, current->pid, version, filename, statbuf);
1307 #endif
1308
1309         error = vfs_lstat(filename, &stat);
1310
1311         if (!error) {
1312                 switch (version) {
1313                         case 2:
1314                                 error = irix_xstat32_xlate(&stat, statbuf);
1315                                 break;
1316                         case 3:
1317                                 error = irix_xstat64_xlate(&stat, statbuf);
1318                                 break;
1319                         default:
1320                                 error = -EINVAL;
1321                 }
1322         }
1323         return error;
1324 }
1325
1326 asmlinkage int irix_fxstat(int version, int fd, struct stat *statbuf)
1327 {
1328         int error;
1329         struct kstat stat;
1330
1331 #ifdef DEBUG_XSTAT
1332         printk("[%s:%d] Wheee.. irix_fxstat(%d,%d,%p) ",
1333                current->comm, current->pid, version, fd, statbuf);
1334 #endif
1335
1336         error = vfs_fstat(fd, &stat);
1337         if (!error) {
1338                 switch (version) {
1339                         case 2:
1340                                 error = irix_xstat32_xlate(&stat, statbuf);
1341                                 break;
1342                         case 3:
1343                                 error = irix_xstat64_xlate(&stat, statbuf);
1344                                 break;
1345                         default:
1346                                 error = -EINVAL;
1347                 }
1348         }
1349         return error;
1350 }
1351
1352 asmlinkage int irix_xmknod(int ver, char *filename, int mode, unsigned dev)
1353 {
1354         int retval;
1355         printk("[%s:%d] Wheee.. irix_xmknod(%d,%s,%x,%x)\n",
1356                current->comm, current->pid, ver, filename, mode, dev);
1357
1358         switch(ver) {
1359         case 2:
1360                 /* shouldn't we convert here as well as on stat()? */
1361                 retval = sys_mknod(filename, mode, dev);
1362                 break;
1363
1364         default:
1365                 retval = -EINVAL;
1366                 break;
1367         };
1368
1369         return retval;
1370 }
1371
1372 asmlinkage int irix_swapctl(int cmd, char *arg)
1373 {
1374         printk("[%s:%d] Wheee.. irix_swapctl(%d,%p)\n",
1375                current->comm, current->pid, cmd, arg);
1376
1377         return -EINVAL;
1378 }
1379
1380 struct irix_statvfs {
1381         u32 f_bsize; u32 f_frsize; u32 f_blocks;
1382         u32 f_bfree; u32 f_bavail; u32 f_files; u32 f_ffree; u32 f_favail;
1383         u32 f_fsid; char f_basetype[16];
1384         u32 f_flag; u32 f_namemax;
1385         char    f_fstr[32]; u32 f_filler[16];
1386 };
1387
1388 asmlinkage int irix_statvfs(char *fname, struct irix_statvfs *buf)
1389 {
1390         struct nameidata nd;
1391         struct kstatfs kbuf;
1392         int error, i;
1393
1394         printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
1395                current->comm, current->pid, fname, buf);
1396         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1397                 error = -EFAULT;
1398                 goto out;
1399         }
1400         error = user_path_walk(fname, &nd);
1401         if (error)
1402                 goto out;
1403         error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1404         if (error)
1405                 goto dput_and_out;
1406
1407         __put_user(kbuf.f_bsize, &buf->f_bsize);
1408         __put_user(kbuf.f_frsize, &buf->f_frsize);
1409         __put_user(kbuf.f_blocks, &buf->f_blocks);
1410         __put_user(kbuf.f_bfree, &buf->f_bfree);
1411         __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
1412         __put_user(kbuf.f_files, &buf->f_files);
1413         __put_user(kbuf.f_ffree, &buf->f_ffree);
1414         __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
1415 #ifdef __MIPSEB__
1416         __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1417 #else
1418         __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1419 #endif
1420         for (i = 0; i < 16; i++)
1421                 __put_user(0, &buf->f_basetype[i]);
1422         __put_user(0, &buf->f_flag);
1423         __put_user(kbuf.f_namelen, &buf->f_namemax);
1424         for (i = 0; i < 32; i++)
1425                 __put_user(0, &buf->f_fstr[i]);
1426
1427         error = 0;
1428
1429 dput_and_out:
1430         path_release(&nd);
1431 out:
1432         return error;
1433 }
1434
1435 asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs *buf)
1436 {
1437         struct kstatfs kbuf;
1438         struct file *file;
1439         int error, i;
1440
1441         printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
1442                current->comm, current->pid, fd, buf);
1443
1444         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1445                 error = -EFAULT;
1446                 goto out;
1447         }
1448         if (!(file = fget(fd))) {
1449                 error = -EBADF;
1450                 goto out;
1451         }
1452         error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1453         if (error)
1454                 goto out_f;
1455
1456         __put_user(kbuf.f_bsize, &buf->f_bsize);
1457         __put_user(kbuf.f_frsize, &buf->f_frsize);
1458         __put_user(kbuf.f_blocks, &buf->f_blocks);
1459         __put_user(kbuf.f_bfree, &buf->f_bfree);
1460         __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1461         __put_user(kbuf.f_files, &buf->f_files);
1462         __put_user(kbuf.f_ffree, &buf->f_ffree);
1463         __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1464 #ifdef __MIPSEB__
1465         __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1466 #else
1467         __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1468 #endif
1469         for(i = 0; i < 16; i++)
1470                 __put_user(0, &buf->f_basetype[i]);
1471         __put_user(0, &buf->f_flag);
1472         __put_user(kbuf.f_namelen, &buf->f_namemax);
1473         __clear_user(&buf->f_fstr, sizeof(buf->f_fstr));
1474
1475 out_f:
1476         fput(file);
1477 out:
1478         return error;
1479 }
1480
1481 asmlinkage int irix_priocntl(struct pt_regs *regs)
1482 {
1483         printk("[%s:%d] Wheee.. irix_priocntl()\n",
1484                current->comm, current->pid);
1485
1486         return -EINVAL;
1487 }
1488
1489 asmlinkage int irix_sigqueue(int pid, int sig, int code, int val)
1490 {
1491         printk("[%s:%d] Wheee.. irix_sigqueue(%d,%d,%d,%d)\n",
1492                current->comm, current->pid, pid, sig, code, val);
1493
1494         return -EINVAL;
1495 }
1496
1497 asmlinkage int irix_truncate64(char *name, int pad, int size1, int size2)
1498 {
1499         int retval;
1500
1501         if (size1) {
1502                 retval = -EINVAL;
1503                 goto out;
1504         }
1505         retval = sys_truncate(name, size2);
1506
1507 out:
1508         return retval;
1509 }
1510
1511 asmlinkage int irix_ftruncate64(int fd, int pad, int size1, int size2)
1512 {
1513         int retval;
1514
1515         if (size1) {
1516                 retval = -EINVAL;
1517                 goto out;
1518         }
1519         retval = sys_ftruncate(fd, size2);
1520
1521 out:
1522         return retval;
1523 }
1524
1525 asmlinkage int irix_mmap64(struct pt_regs *regs)
1526 {
1527         int len, prot, flags, fd, off1, off2, error, base = 0;
1528         unsigned long addr, pgoff, *sp;
1529         struct file *file = NULL;
1530
1531         if (regs->regs[2] == 1000)
1532                 base = 1;
1533         sp = (unsigned long *) (regs->regs[29] + 16);
1534         addr = regs->regs[base + 4];
1535         len = regs->regs[base + 5];
1536         prot = regs->regs[base + 6];
1537         if (!base) {
1538                 flags = regs->regs[base + 7];
1539                 if (!access_ok(VERIFY_READ, sp, (4 * sizeof(unsigned long)))) {
1540                         error = -EFAULT;
1541                         goto out;
1542                 }
1543                 fd = sp[0];
1544                 __get_user(off1, &sp[1]);
1545                 __get_user(off2, &sp[2]);
1546         } else {
1547                 if (!access_ok(VERIFY_READ, sp, (5 * sizeof(unsigned long)))) {
1548                         error = -EFAULT;
1549                         goto out;
1550                 }
1551                 __get_user(flags, &sp[0]);
1552                 __get_user(fd, &sp[1]);
1553                 __get_user(off1, &sp[2]);
1554                 __get_user(off2, &sp[3]);
1555         }
1556
1557         if (off1 & PAGE_MASK) {
1558                 error = -EOVERFLOW;
1559                 goto out;
1560         }
1561
1562         pgoff = (off1 << (32 - PAGE_SHIFT)) | (off2 >> PAGE_SHIFT);
1563
1564         if (!(flags & MAP_ANONYMOUS)) {
1565                 if (!(file = fget(fd))) {
1566                         error = -EBADF;
1567                         goto out;
1568                 }
1569
1570                 /* Ok, bad taste hack follows, try to think in something else
1571                    when reading this */
1572                 if (flags & IRIX_MAP_AUTOGROW) {
1573                         unsigned long old_pos;
1574                         long max_size = off2 + len;
1575
1576                         if (max_size > file->f_dentry->d_inode->i_size) {
1577                                 old_pos = sys_lseek (fd, max_size - 1, 0);
1578                                 sys_write (fd, "", 1);
1579                                 sys_lseek (fd, old_pos, 0);
1580                         }
1581                 }
1582         }
1583
1584         flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1585
1586         down_write(&current->mm->mmap_sem);
1587         error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
1588         up_write(&current->mm->mmap_sem);
1589
1590         if (file)
1591                 fput(file);
1592
1593 out:
1594         return error;
1595 }
1596
1597 asmlinkage int irix_dmi(struct pt_regs *regs)
1598 {
1599         printk("[%s:%d] Wheee.. irix_dmi()\n",
1600                current->comm, current->pid);
1601
1602         return -EINVAL;
1603 }
1604
1605 asmlinkage int irix_pread(int fd, char *buf, int cnt, int off64,
1606                           int off1, int off2)
1607 {
1608         printk("[%s:%d] Wheee.. irix_pread(%d,%p,%d,%d,%d,%d)\n",
1609                current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1610
1611         return -EINVAL;
1612 }
1613
1614 asmlinkage int irix_pwrite(int fd, char *buf, int cnt, int off64,
1615                            int off1, int off2)
1616 {
1617         printk("[%s:%d] Wheee.. irix_pwrite(%d,%p,%d,%d,%d,%d)\n",
1618                current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1619
1620         return -EINVAL;
1621 }
1622
1623 asmlinkage int irix_sgifastpath(int cmd, unsigned long arg0, unsigned long arg1,
1624                                 unsigned long arg2, unsigned long arg3,
1625                                 unsigned long arg4, unsigned long arg5)
1626 {
1627         printk("[%s:%d] Wheee.. irix_fastpath(%d,%08lx,%08lx,%08lx,%08lx,"
1628                "%08lx,%08lx)\n",
1629                current->comm, current->pid, cmd, arg0, arg1, arg2,
1630                arg3, arg4, arg5);
1631
1632         return -EINVAL;
1633 }
1634
1635 struct irix_statvfs64 {
1636         u32  f_bsize; u32 f_frsize;
1637         u64  f_blocks; u64 f_bfree; u64 f_bavail;
1638         u64  f_files; u64 f_ffree; u64 f_favail;
1639         u32  f_fsid;
1640         char f_basetype[16];
1641         u32  f_flag; u32 f_namemax;
1642         char f_fstr[32];
1643         u32  f_filler[16];
1644 };
1645
1646 asmlinkage int irix_statvfs64(char *fname, struct irix_statvfs64 *buf)
1647 {
1648         struct nameidata nd;
1649         struct kstatfs kbuf;
1650         int error, i;
1651
1652         printk("[%s:%d] Wheee.. irix_statvfs64(%s,%p)\n",
1653                current->comm, current->pid, fname, buf);
1654         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs64))) {
1655                 error = -EFAULT;
1656                 goto out;
1657         }
1658         error = user_path_walk(fname, &nd);
1659         if (error)
1660                 goto out;
1661         error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1662         if (error)
1663                 goto dput_and_out;
1664
1665         __put_user(kbuf.f_bsize, &buf->f_bsize);
1666         __put_user(kbuf.f_frsize, &buf->f_frsize);
1667         __put_user(kbuf.f_blocks, &buf->f_blocks);
1668         __put_user(kbuf.f_bfree, &buf->f_bfree);
1669         __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
1670         __put_user(kbuf.f_files, &buf->f_files);
1671         __put_user(kbuf.f_ffree, &buf->f_ffree);
1672         __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
1673 #ifdef __MIPSEB__
1674         __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1675 #else
1676         __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1677 #endif
1678         for(i = 0; i < 16; i++)
1679                 __put_user(0, &buf->f_basetype[i]);
1680         __put_user(0, &buf->f_flag);
1681         __put_user(kbuf.f_namelen, &buf->f_namemax);
1682         for(i = 0; i < 32; i++)
1683                 __put_user(0, &buf->f_fstr[i]);
1684
1685         error = 0;
1686
1687 dput_and_out:
1688         path_release(&nd);
1689 out:
1690         return error;
1691 }
1692
1693 asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs *buf)
1694 {
1695         struct kstatfs kbuf;
1696         struct file *file;
1697         int error, i;
1698
1699         printk("[%s:%d] Wheee.. irix_fstatvfs64(%d,%p)\n",
1700                current->comm, current->pid, fd, buf);
1701
1702         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1703                 error = -EFAULT;
1704                 goto out;
1705         }
1706         if (!(file = fget(fd))) {
1707                 error = -EBADF;
1708                 goto out;
1709         }
1710         error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1711         if (error)
1712                 goto out_f;
1713
1714         __put_user(kbuf.f_bsize, &buf->f_bsize);
1715         __put_user(kbuf.f_frsize, &buf->f_frsize);
1716         __put_user(kbuf.f_blocks, &buf->f_blocks);
1717         __put_user(kbuf.f_bfree, &buf->f_bfree);
1718         __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
1719         __put_user(kbuf.f_files, &buf->f_files);
1720         __put_user(kbuf.f_ffree, &buf->f_ffree);
1721         __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
1722 #ifdef __MIPSEB__
1723         __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1724 #else
1725         __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1726 #endif
1727         for(i = 0; i < 16; i++)
1728                 __put_user(0, &buf->f_basetype[i]);
1729         __put_user(0, &buf->f_flag);
1730         __put_user(kbuf.f_namelen, &buf->f_namemax);
1731         __clear_user(buf->f_fstr, sizeof(buf->f_fstr[i]));
1732
1733 out_f:
1734         fput(file);
1735 out:
1736         return error;
1737 }
1738
1739 asmlinkage int irix_getmountid(char *fname, unsigned long *midbuf)
1740 {
1741         int err = 0;
1742
1743         printk("[%s:%d] irix_getmountid(%s, %p)\n",
1744                current->comm, current->pid, fname, midbuf);
1745         if (!access_ok(VERIFY_WRITE, midbuf, (sizeof(unsigned long) * 4)))
1746                 return -EFAULT;
1747
1748         /*
1749          * The idea with this system call is that when trying to determine
1750          * 'pwd' and it's a toss-up for some reason, userland can use the
1751          * fsid of the filesystem to try and make the right decision, but
1752          * we don't have this so for now. XXX
1753          */
1754         err |= __put_user(0, &midbuf[0]);
1755         err |= __put_user(0, &midbuf[1]);
1756         err |= __put_user(0, &midbuf[2]);
1757         err |= __put_user(0, &midbuf[3]);
1758
1759         return err;
1760 }
1761
1762 asmlinkage int irix_nsproc(unsigned long entry, unsigned long mask,
1763                            unsigned long arg, unsigned long sp, int slen)
1764 {
1765         printk("[%s:%d] Wheee.. irix_nsproc(%08lx,%08lx,%08lx,%08lx,%d)\n",
1766                current->comm, current->pid, entry, mask, arg, sp, slen);
1767
1768         return -EINVAL;
1769 }
1770
1771 #undef DEBUG_GETDENTS
1772
1773 struct irix_dirent32 {
1774         u32  d_ino;
1775         u32  d_off;
1776         unsigned short  d_reclen;
1777         char d_name[1];
1778 };
1779
1780 struct irix_dirent32_callback {
1781         struct irix_dirent32 *current_dir;
1782         struct irix_dirent32 *previous;
1783         int count;
1784         int error;
1785 };
1786
1787 #define NAME_OFFSET32(de) ((int) ((de)->d_name - (char *) (de)))
1788 #define ROUND_UP32(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
1789
1790 static int irix_filldir32(void *__buf, const char *name, int namlen,
1791                           loff_t offset, ino_t ino, unsigned int d_type)
1792 {
1793         struct irix_dirent32 *dirent;
1794         struct irix_dirent32_callback *buf =
1795                  (struct irix_dirent32_callback *)__buf;
1796         unsigned short reclen = ROUND_UP32(NAME_OFFSET32(dirent) + namlen + 1);
1797
1798 #ifdef DEBUG_GETDENTS
1799         printk("\nirix_filldir32[reclen<%d>namlen<%d>count<%d>]",
1800                reclen, namlen, buf->count);
1801 #endif
1802         buf->error = -EINVAL;   /* only used if we fail.. */
1803         if (reclen > buf->count)
1804                 return -EINVAL;
1805         dirent = buf->previous;
1806         if (dirent)
1807                 __put_user(offset, &dirent->d_off);
1808         dirent = buf->current_dir;
1809         buf->previous = dirent;
1810         __put_user(ino, &dirent->d_ino);
1811         __put_user(reclen, &dirent->d_reclen);
1812         copy_to_user(dirent->d_name, name, namlen);
1813         __put_user(0, &dirent->d_name[namlen]);
1814         ((char *) dirent) += reclen;
1815         buf->current_dir = dirent;
1816         buf->count -= reclen;
1817
1818         return 0;
1819 }
1820
1821 asmlinkage int irix_ngetdents(unsigned int fd, void * dirent,
1822         unsigned int count, int *eob)
1823 {
1824         struct file *file;
1825         struct irix_dirent32 *lastdirent;
1826         struct irix_dirent32_callback buf;
1827         int error;
1828
1829 #ifdef DEBUG_GETDENTS
1830         printk("[%s:%d] ngetdents(%d, %p, %d, %p) ", current->comm,
1831                current->pid, fd, dirent, count, eob);
1832 #endif
1833         error = -EBADF;
1834         file = fget(fd);
1835         if (!file)
1836                 goto out;
1837
1838         buf.current_dir = (struct irix_dirent32 *) dirent;
1839         buf.previous = NULL;
1840         buf.count = count;
1841         buf.error = 0;
1842
1843         error = vfs_readdir(file, irix_filldir32, &buf);
1844         if (error < 0)
1845                 goto out_putf;
1846
1847         error = buf.error;
1848         lastdirent = buf.previous;
1849         if (lastdirent) {
1850                 put_user(file->f_pos, &lastdirent->d_off);
1851                 error = count - buf.count;
1852         }
1853
1854         if (put_user(0, eob) < 0) {
1855                 error = -EFAULT;
1856                 goto out_putf;
1857         }
1858
1859 #ifdef DEBUG_GETDENTS
1860         printk("eob=%d returning %d\n", *eob, count - buf.count);
1861 #endif
1862         error = count - buf.count;
1863
1864 out_putf:
1865         fput(file);
1866 out:
1867         return error;
1868 }
1869
1870 struct irix_dirent64 {
1871         u64            d_ino;
1872         u64            d_off;
1873         unsigned short d_reclen;
1874         char           d_name[1];
1875 };
1876
1877 struct irix_dirent64_callback {
1878         struct irix_dirent64 *curr;
1879         struct irix_dirent64 *previous;
1880         int count;
1881         int error;
1882 };
1883
1884 #define NAME_OFFSET64(de) ((int) ((de)->d_name - (char *) (de)))
1885 #define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
1886
1887 static int irix_filldir64(void * __buf, const char * name, int namlen,
1888                           loff_t offset, ino_t ino, unsigned int d_type)
1889 {
1890         struct irix_dirent64 *dirent;
1891         struct irix_dirent64_callback * buf =
1892                 (struct irix_dirent64_callback *) __buf;
1893         unsigned short reclen = ROUND_UP64(NAME_OFFSET64(dirent) + namlen + 1);
1894
1895         buf->error = -EINVAL;   /* only used if we fail.. */
1896         if (reclen > buf->count)
1897                 return -EINVAL;
1898         dirent = buf->previous;
1899         if (dirent)
1900                 __put_user(offset, &dirent->d_off);
1901         dirent = buf->curr;
1902         buf->previous = dirent;
1903         __put_user(ino, &dirent->d_ino);
1904         __put_user(reclen, &dirent->d_reclen);
1905         __copy_to_user(dirent->d_name, name, namlen);
1906         __put_user(0, &dirent->d_name[namlen]);
1907         ((char *) dirent) += reclen;
1908         buf->curr = dirent;
1909         buf->count -= reclen;
1910
1911         return 0;
1912 }
1913
1914 asmlinkage int irix_getdents64(int fd, void *dirent, int cnt)
1915 {
1916         struct file *file;
1917         struct irix_dirent64 *lastdirent;
1918         struct irix_dirent64_callback buf;
1919         int error;
1920
1921 #ifdef DEBUG_GETDENTS
1922         printk("[%s:%d] getdents64(%d, %p, %d) ", current->comm,
1923                current->pid, fd, dirent, cnt);
1924 #endif
1925         error = -EBADF;
1926         if (!(file = fget(fd)))
1927                 goto out;
1928
1929         error = -EFAULT;
1930         if (!access_ok(VERIFY_WRITE, dirent, cnt))
1931                 goto out_f;
1932
1933         error = -EINVAL;
1934         if (cnt < (sizeof(struct irix_dirent64) + 255))
1935                 goto out_f;
1936
1937         buf.curr = (struct irix_dirent64 *) dirent;
1938         buf.previous = NULL;
1939         buf.count = cnt;
1940         buf.error = 0;
1941         error = vfs_readdir(file, irix_filldir64, &buf);
1942         if (error < 0)
1943                 goto out_f;
1944         lastdirent = buf.previous;
1945         if (!lastdirent) {
1946                 error = buf.error;
1947                 goto out_f;
1948         }
1949         lastdirent->d_off = (u64) file->f_pos;
1950 #ifdef DEBUG_GETDENTS
1951         printk("returning %d\n", cnt - buf.count);
1952 #endif
1953         error = cnt - buf.count;
1954
1955 out_f:
1956         fput(file);
1957 out:
1958         return error;
1959 }
1960
1961 asmlinkage int irix_ngetdents64(int fd, void *dirent, int cnt, int *eob)
1962 {
1963         struct file *file;
1964         struct irix_dirent64 *lastdirent;
1965         struct irix_dirent64_callback buf;
1966         int error;
1967
1968 #ifdef DEBUG_GETDENTS
1969         printk("[%s:%d] ngetdents64(%d, %p, %d) ", current->comm,
1970                current->pid, fd, dirent, cnt);
1971 #endif
1972         error = -EBADF;
1973         if (!(file = fget(fd)))
1974                 goto out;
1975
1976         error = -EFAULT;
1977         if (!access_ok(VERIFY_WRITE, dirent, cnt) ||
1978             !access_ok(VERIFY_WRITE, eob, sizeof(*eob)))
1979                 goto out_f;
1980
1981         error = -EINVAL;
1982         if (cnt < (sizeof(struct irix_dirent64) + 255))
1983                 goto out_f;
1984
1985         *eob = 0;
1986         buf.curr = (struct irix_dirent64 *) dirent;
1987         buf.previous = NULL;
1988         buf.count = cnt;
1989         buf.error = 0;
1990         error = vfs_readdir(file, irix_filldir64, &buf);
1991         if (error < 0)
1992                 goto out_f;
1993         lastdirent = buf.previous;
1994         if (!lastdirent) {
1995                 error = buf.error;
1996                 goto out_f;
1997         }
1998         lastdirent->d_off = (u64) file->f_pos;
1999 #ifdef DEBUG_GETDENTS
2000         printk("eob=%d returning %d\n", *eob, cnt - buf.count);
2001 #endif
2002         error = cnt - buf.count;
2003
2004 out_f:
2005         fput(file);
2006 out:
2007         return error;
2008 }
2009
2010 asmlinkage int irix_uadmin(unsigned long op, unsigned long func, unsigned long arg)
2011 {
2012         int retval;
2013
2014         switch (op) {
2015         case 1:
2016                 /* Reboot */
2017                 printk("[%s:%d] irix_uadmin: Wants to reboot...\n",
2018                        current->comm, current->pid);
2019                 retval = -EINVAL;
2020                 goto out;
2021
2022         case 2:
2023                 /* Shutdown */
2024                 printk("[%s:%d] irix_uadmin: Wants to shutdown...\n",
2025                        current->comm, current->pid);
2026                 retval = -EINVAL;
2027                 goto out;
2028
2029         case 4:
2030                 /* Remount-root */
2031                 printk("[%s:%d] irix_uadmin: Wants to remount root...\n",
2032                        current->comm, current->pid);
2033                 retval = -EINVAL;
2034                 goto out;
2035
2036         case 8:
2037                 /* Kill all tasks. */
2038                 printk("[%s:%d] irix_uadmin: Wants to kill all tasks...\n",
2039                        current->comm, current->pid);
2040                 retval = -EINVAL;
2041                 goto out;
2042
2043         case 256:
2044                 /* Set magic mushrooms... */
2045                 printk("[%s:%d] irix_uadmin: Wants to set magic mushroom[%d]...\n",
2046                        current->comm, current->pid, (int) func);
2047                 retval = -EINVAL;
2048                 goto out;
2049
2050         default:
2051                 printk("[%s:%d] irix_uadmin: Unknown operation [%d]...\n",
2052                        current->comm, current->pid, (int) op);
2053                 retval = -EINVAL;
2054                 goto out;
2055         };
2056
2057 out:
2058         return retval;
2059 }
2060
2061 asmlinkage int irix_utssys(char *inbuf, int arg, int type, char *outbuf)
2062 {
2063         int retval;
2064
2065         switch(type) {
2066         case 0:
2067                 /* uname() */
2068                 retval = irix_uname((struct iuname *)inbuf);
2069                 goto out;
2070
2071         case 2:
2072                 /* ustat() */
2073                 printk("[%s:%d] irix_utssys: Wants to do ustat()\n",
2074                        current->comm, current->pid);
2075                 retval = -EINVAL;
2076                 goto out;
2077
2078         case 3:
2079                 /* fusers() */
2080                 printk("[%s:%d] irix_utssys: Wants to do fusers()\n",
2081                        current->comm, current->pid);
2082                 retval = -EINVAL;
2083                 goto out;
2084
2085         default:
2086                 printk("[%s:%d] irix_utssys: Wants to do unknown type[%d]\n",
2087                        current->comm, current->pid, (int) type);
2088                 retval = -EINVAL;
2089                 goto out;
2090         }
2091
2092 out:
2093         return retval;
2094 }
2095
2096 #undef DEBUG_FCNTL
2097
2098 #define IRIX_F_ALLOCSP 10
2099
2100 asmlinkage int irix_fcntl(int fd, int cmd, int arg)
2101 {
2102         int retval;
2103
2104 #ifdef DEBUG_FCNTL
2105         printk("[%s:%d] irix_fcntl(%d, %d, %d) ", current->comm,
2106                current->pid, fd, cmd, arg);
2107 #endif
2108         if (cmd == IRIX_F_ALLOCSP){
2109                 return 0;
2110         }
2111         retval = sys_fcntl(fd, cmd, arg);
2112 #ifdef DEBUG_FCNTL
2113         printk("%d\n", retval);
2114 #endif
2115         return retval;
2116 }
2117
2118 asmlinkage int irix_ulimit(int cmd, int arg)
2119 {
2120         int retval;
2121
2122         switch(cmd) {
2123         case 1:
2124                 printk("[%s:%d] irix_ulimit: Wants to get file size limit.\n",
2125                        current->comm, current->pid);
2126                 retval = -EINVAL;
2127                 goto out;
2128
2129         case 2:
2130                 printk("[%s:%d] irix_ulimit: Wants to set file size limit.\n",
2131                        current->comm, current->pid);
2132                 retval = -EINVAL;
2133                 goto out;
2134
2135         case 3:
2136                 printk("[%s:%d] irix_ulimit: Wants to get brk limit.\n",
2137                        current->comm, current->pid);
2138                 retval = -EINVAL;
2139                 goto out;
2140
2141         case 4:
2142 #if 0
2143                 printk("[%s:%d] irix_ulimit: Wants to get fd limit.\n",
2144                        current->comm, current->pid);
2145                 retval = -EINVAL;
2146                 goto out;
2147 #endif
2148                 retval = current->signal->rlim[RLIMIT_NOFILE].rlim_cur;
2149                 goto out;
2150
2151         case 5:
2152                 printk("[%s:%d] irix_ulimit: Wants to get txt offset.\n",
2153                        current->comm, current->pid);
2154                 retval = -EINVAL;
2155                 goto out;
2156
2157         default:
2158                 printk("[%s:%d] irix_ulimit: Unknown command [%d].\n",
2159                        current->comm, current->pid, cmd);
2160                 retval = -EINVAL;
2161                 goto out;
2162         }
2163 out:
2164         return retval;
2165 }
2166
2167 asmlinkage int irix_unimp(struct pt_regs *regs)
2168 {
2169         printk("irix_unimp [%s:%d] v0=%d v1=%d a0=%08lx a1=%08lx a2=%08lx "
2170                "a3=%08lx\n", current->comm, current->pid,
2171                (int) regs->regs[2], (int) regs->regs[3],
2172                regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]);
2173
2174         return -ENOSYS;
2175 }