Pull xpc-disengage into release branch
[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          * Ok, looks good - let it rip.
585          */
586         if (do_brk(oldbrk, newbrk-oldbrk) != oldbrk) {
587                 ret = -ENOMEM;
588                 goto out;
589         }
590         mm->brk = brk;
591         ret = 0;
592
593 out:
594         up_write(&mm->mmap_sem);
595         return ret;
596 }
597
598 asmlinkage int irix_getpid(struct pt_regs *regs)
599 {
600         regs->regs[3] = current->real_parent->pid;
601         return current->pid;
602 }
603
604 asmlinkage int irix_getuid(struct pt_regs *regs)
605 {
606         regs->regs[3] = current->euid;
607         return current->uid;
608 }
609
610 asmlinkage int irix_getgid(struct pt_regs *regs)
611 {
612         regs->regs[3] = current->egid;
613         return current->gid;
614 }
615
616 asmlinkage int irix_stime(int value)
617 {
618         int err;
619         struct timespec tv;
620
621         tv.tv_sec = value;
622         tv.tv_nsec = 0;
623         err = security_settime(&tv, NULL);
624         if (err)
625                 return err;
626
627         write_seqlock_irq(&xtime_lock);
628         xtime.tv_sec = value;
629         xtime.tv_nsec = 0;
630         ntp_clear();
631         write_sequnlock_irq(&xtime_lock);
632
633         return 0;
634 }
635
636 static inline void jiffiestotv(unsigned long jiffies, struct timeval *value)
637 {
638         value->tv_usec = (jiffies % HZ) * (1000000 / HZ);
639         value->tv_sec = jiffies / HZ;
640 }
641
642 static inline void getitimer_real(struct itimerval *value)
643 {
644         register unsigned long val, interval;
645
646         interval = current->it_real_incr;
647         val = 0;
648         if (del_timer(&current->real_timer)) {
649                 unsigned long now = jiffies;
650                 val = current->real_timer.expires;
651                 add_timer(&current->real_timer);
652                 /* look out for negative/zero itimer.. */
653                 if (val <= now)
654                         val = now+1;
655                 val -= now;
656         }
657         jiffiestotv(val, &value->it_value);
658         jiffiestotv(interval, &value->it_interval);
659 }
660
661 asmlinkage unsigned int irix_alarm(unsigned int seconds)
662 {
663         struct itimerval it_new, it_old;
664         unsigned int oldalarm;
665
666         if (!seconds) {
667                 getitimer_real(&it_old);
668                 del_timer(&current->real_timer);
669         } else {
670                 it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0;
671                 it_new.it_value.tv_sec = seconds;
672                 it_new.it_value.tv_usec = 0;
673                 do_setitimer(ITIMER_REAL, &it_new, &it_old);
674         }
675         oldalarm = it_old.it_value.tv_sec;
676         /*
677          * ehhh.. We can't return 0 if we have an alarm pending ...
678          * And we'd better return too much than too little anyway
679          */
680         if (it_old.it_value.tv_usec)
681                 oldalarm++;
682
683         return oldalarm;
684 }
685
686 asmlinkage int irix_pause(void)
687 {
688         current->state = TASK_INTERRUPTIBLE;
689         schedule();
690
691         return -EINTR;
692 }
693
694 /* XXX need more than this... */
695 asmlinkage int irix_mount(char *dev_name, char *dir_name, unsigned long flags,
696                           char *type, void *data, int datalen)
697 {
698         printk("[%s:%d] irix_mount(%p,%p,%08lx,%p,%p,%d)\n",
699                current->comm, current->pid,
700                dev_name, dir_name, flags, type, data, datalen);
701
702         return sys_mount(dev_name, dir_name, type, flags, data);
703 }
704
705 struct irix_statfs {
706         short f_type;
707         long  f_bsize, f_frsize, f_blocks, f_bfree, f_files, f_ffree;
708         char  f_fname[6], f_fpack[6];
709 };
710
711 asmlinkage int irix_statfs(const char *path, struct irix_statfs *buf,
712                            int len, int fs_type)
713 {
714         struct nameidata nd;
715         struct kstatfs kbuf;
716         int error, i;
717
718         /* We don't support this feature yet. */
719         if (fs_type) {
720                 error = -EINVAL;
721                 goto out;
722         }
723         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
724                 error = -EFAULT;
725                 goto out;
726         }
727         error = user_path_walk(path, &nd);
728         if (error)
729                 goto out;
730
731         error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
732         if (error)
733                 goto dput_and_out;
734
735         __put_user(kbuf.f_type, &buf->f_type);
736         __put_user(kbuf.f_bsize, &buf->f_bsize);
737         __put_user(kbuf.f_frsize, &buf->f_frsize);
738         __put_user(kbuf.f_blocks, &buf->f_blocks);
739         __put_user(kbuf.f_bfree, &buf->f_bfree);
740         __put_user(kbuf.f_files, &buf->f_files);
741         __put_user(kbuf.f_ffree, &buf->f_ffree);
742         for (i = 0; i < 6; i++) {
743                 __put_user(0, &buf->f_fname[i]);
744                 __put_user(0, &buf->f_fpack[i]);
745         }
746         error = 0;
747
748 dput_and_out:
749         path_release(&nd);
750 out:
751         return error;
752 }
753
754 asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs *buf)
755 {
756         struct kstatfs kbuf;
757         struct file *file;
758         int error, i;
759
760         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
761                 error = -EFAULT;
762                 goto out;
763         }
764         if (!(file = fget(fd))) {
765                 error = -EBADF;
766                 goto out;
767         }
768
769         error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
770         if (error)
771                 goto out_f;
772
773         __put_user(kbuf.f_type, &buf->f_type);
774         __put_user(kbuf.f_bsize, &buf->f_bsize);
775         __put_user(kbuf.f_frsize, &buf->f_frsize);
776         __put_user(kbuf.f_blocks, &buf->f_blocks);
777         __put_user(kbuf.f_bfree, &buf->f_bfree);
778         __put_user(kbuf.f_files, &buf->f_files);
779         __put_user(kbuf.f_ffree, &buf->f_ffree);
780         for(i = 0; i < 6; i++) {
781                 __put_user(0, &buf->f_fname[i]);
782                 __put_user(0, &buf->f_fpack[i]);
783         }
784
785 out_f:
786         fput(file);
787 out:
788         return error;
789 }
790
791 asmlinkage int irix_setpgrp(int flags)
792 {
793         int error;
794
795 #ifdef DEBUG_PROCGRPS
796         printk("[%s:%d] setpgrp(%d) ", current->comm, current->pid, flags);
797 #endif
798         if(!flags)
799                 error = process_group(current);
800         else
801                 error = sys_setsid();
802 #ifdef DEBUG_PROCGRPS
803         printk("returning %d\n", process_group(current));
804 #endif
805
806         return error;
807 }
808
809 asmlinkage int irix_times(struct tms * tbuf)
810 {
811         int err = 0;
812
813         if (tbuf) {
814                 if (!access_ok(VERIFY_WRITE,tbuf,sizeof *tbuf))
815                         return -EFAULT;
816                 err |= __put_user(current->utime, &tbuf->tms_utime);
817                 err |= __put_user(current->stime, &tbuf->tms_stime);
818                 err |= __put_user(current->signal->cutime, &tbuf->tms_cutime);
819                 err |= __put_user(current->signal->cstime, &tbuf->tms_cstime);
820         }
821
822         return err;
823 }
824
825 asmlinkage int irix_exec(struct pt_regs *regs)
826 {
827         int error, base = 0;
828         char *filename;
829
830         if(regs->regs[2] == 1000)
831                 base = 1;
832         filename = getname((char *) (long)regs->regs[base + 4]);
833         error = PTR_ERR(filename);
834         if (IS_ERR(filename))
835                 return error;
836
837         error = do_execve(filename, (char **) (long)regs->regs[base + 5],
838                           (char **) 0, regs);
839         putname(filename);
840
841         return error;
842 }
843
844 asmlinkage int irix_exece(struct pt_regs *regs)
845 {
846         int error, base = 0;
847         char *filename;
848
849         if (regs->regs[2] == 1000)
850                 base = 1;
851         filename = getname((char *) (long)regs->regs[base + 4]);
852         error = PTR_ERR(filename);
853         if (IS_ERR(filename))
854                 return error;
855         error = do_execve(filename, (char **) (long)regs->regs[base + 5],
856                           (char **) (long)regs->regs[base + 6], regs);
857         putname(filename);
858
859         return error;
860 }
861
862 asmlinkage unsigned long irix_gethostid(void)
863 {
864         printk("[%s:%d]: irix_gethostid() called...\n",
865                current->comm, current->pid);
866
867         return -EINVAL;
868 }
869
870 asmlinkage unsigned long irix_sethostid(unsigned long val)
871 {
872         printk("[%s:%d]: irix_sethostid(%08lx) called...\n",
873                current->comm, current->pid, val);
874
875         return -EINVAL;
876 }
877
878 asmlinkage int irix_socket(int family, int type, int protocol)
879 {
880         switch(type) {
881         case 1:
882                 type = SOCK_DGRAM;
883                 break;
884
885         case 2:
886                 type = SOCK_STREAM;
887                 break;
888
889         case 3:
890                 type = 9; /* Invalid... */
891                 break;
892
893         case 4:
894                 type = SOCK_RAW;
895                 break;
896
897         case 5:
898                 type = SOCK_RDM;
899                 break;
900
901         case 6:
902                 type = SOCK_SEQPACKET;
903                 break;
904
905         default:
906                 break;
907         }
908
909         return sys_socket(family, type, protocol);
910 }
911
912 asmlinkage int irix_getdomainname(char *name, int len)
913 {
914         int error;
915
916         if (!access_ok(VERIFY_WRITE, name, len))
917                 return -EFAULT;
918
919         down_read(&uts_sem);
920         if (len > __NEW_UTS_LEN)
921                 len = __NEW_UTS_LEN;
922         error = 0;
923         if (copy_to_user(name, system_utsname.domainname, len))
924                 error = -EFAULT;
925         up_read(&uts_sem);
926
927         return error;
928 }
929
930 asmlinkage unsigned long irix_getpagesize(void)
931 {
932         return PAGE_SIZE;
933 }
934
935 asmlinkage int irix_msgsys(int opcode, unsigned long arg0, unsigned long arg1,
936                            unsigned long arg2, unsigned long arg3,
937                            unsigned long arg4)
938 {
939         switch (opcode) {
940         case 0:
941                 return sys_msgget((key_t) arg0, (int) arg1);
942         case 1:
943                 return sys_msgctl((int) arg0, (int) arg1, (struct msqid_ds *)arg2);
944         case 2:
945                 return sys_msgrcv((int) arg0, (struct msgbuf *) arg1,
946                                   (size_t) arg2, (long) arg3, (int) arg4);
947         case 3:
948                 return sys_msgsnd((int) arg0, (struct msgbuf *) arg1,
949                                   (size_t) arg2, (int) arg3);
950         default:
951                 return -EINVAL;
952         }
953 }
954
955 asmlinkage int irix_shmsys(int opcode, unsigned long arg0, unsigned long arg1,
956                            unsigned long arg2, unsigned long arg3)
957 {
958         switch (opcode) {
959         case 0:
960                 return do_shmat((int) arg0, (char *)arg1, (int) arg2,
961                                  (unsigned long *) arg3);
962         case 1:
963                 return sys_shmctl((int)arg0, (int)arg1, (struct shmid_ds *)arg2);
964         case 2:
965                 return sys_shmdt((char *)arg0);
966         case 3:
967                 return sys_shmget((key_t) arg0, (int) arg1, (int) arg2);
968         default:
969                 return -EINVAL;
970         }
971 }
972
973 asmlinkage int irix_semsys(int opcode, unsigned long arg0, unsigned long arg1,
974                            unsigned long arg2, int arg3)
975 {
976         switch (opcode) {
977         case 0:
978                 return sys_semctl((int) arg0, (int) arg1, (int) arg2,
979                                   (union semun) arg3);
980         case 1:
981                 return sys_semget((key_t) arg0, (int) arg1, (int) arg2);
982         case 2:
983                 return sys_semop((int) arg0, (struct sembuf *)arg1,
984                                  (unsigned int) arg2);
985         default:
986                 return -EINVAL;
987         }
988 }
989
990 static inline loff_t llseek(struct file *file, loff_t offset, int origin)
991 {
992         loff_t (*fn)(struct file *, loff_t, int);
993         loff_t retval;
994
995         fn = default_llseek;
996         if (file->f_op && file->f_op->llseek)
997         fn = file->f_op->llseek;
998         lock_kernel();
999         retval = fn(file, offset, origin);
1000         unlock_kernel();
1001         return retval;
1002 }
1003
1004 asmlinkage int irix_lseek64(int fd, int _unused, int offhi, int offlow,
1005                             int origin)
1006 {
1007         int retval;
1008         struct file * file;
1009         loff_t offset;
1010
1011         retval = -EBADF;
1012         file = fget(fd);
1013         if (!file)
1014                 goto bad;
1015         retval = -EINVAL;
1016         if (origin > 2)
1017                 goto out_putf;
1018
1019         offset = llseek(file, ((loff_t) offhi << 32) | offlow, origin);
1020         retval = (int) offset;
1021
1022 out_putf:
1023         fput(file);
1024 bad:
1025         return retval;
1026 }
1027
1028 asmlinkage int irix_sginap(int ticks)
1029 {
1030         schedule_timeout_interruptible(ticks);
1031         return 0;
1032 }
1033
1034 asmlinkage int irix_sgikopt(char *istring, char *ostring, int len)
1035 {
1036         return -EINVAL;
1037 }
1038
1039 asmlinkage int irix_gettimeofday(struct timeval *tv)
1040 {
1041         time_t sec;
1042         long nsec, seq;
1043         int err;
1044
1045         if (!access_ok(VERIFY_WRITE, tv, sizeof(struct timeval)))
1046                 return -EFAULT;
1047
1048         do {
1049                 seq = read_seqbegin(&xtime_lock);
1050                 sec = xtime.tv_sec;
1051                 nsec = xtime.tv_nsec;
1052         } while (read_seqretry(&xtime_lock, seq));
1053
1054         err = __put_user(sec, &tv->tv_sec);
1055         err |= __put_user((nsec / 1000), &tv->tv_usec);
1056
1057         return err;
1058 }
1059
1060 #define IRIX_MAP_AUTOGROW 0x40
1061
1062 asmlinkage unsigned long irix_mmap32(unsigned long addr, size_t len, int prot,
1063                                      int flags, int fd, off_t offset)
1064 {
1065         struct file *file = NULL;
1066         unsigned long retval;
1067
1068         if (!(flags & MAP_ANONYMOUS)) {
1069                 if (!(file = fget(fd)))
1070                         return -EBADF;
1071
1072                 /* Ok, bad taste hack follows, try to think in something else
1073                  * when reading this.  */
1074                 if (flags & IRIX_MAP_AUTOGROW) {
1075                         unsigned long old_pos;
1076                         long max_size = offset + len;
1077
1078                         if (max_size > file->f_dentry->d_inode->i_size) {
1079                                 old_pos = sys_lseek (fd, max_size - 1, 0);
1080                                 sys_write (fd, "", 1);
1081                                 sys_lseek (fd, old_pos, 0);
1082                         }
1083                 }
1084         }
1085
1086         flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1087
1088         down_write(&current->mm->mmap_sem);
1089         retval = do_mmap(file, addr, len, prot, flags, offset);
1090         up_write(&current->mm->mmap_sem);
1091         if (file)
1092                 fput(file);
1093
1094         return retval;
1095 }
1096
1097 asmlinkage int irix_madvise(unsigned long addr, int len, int behavior)
1098 {
1099         printk("[%s:%d] Wheee.. irix_madvise(%08lx,%d,%d)\n",
1100                current->comm, current->pid, addr, len, behavior);
1101
1102         return -EINVAL;
1103 }
1104
1105 asmlinkage int irix_pagelock(char *addr, int len, int op)
1106 {
1107         printk("[%s:%d] Wheee.. irix_pagelock(%p,%d,%d)\n",
1108                current->comm, current->pid, addr, len, op);
1109
1110         return -EINVAL;
1111 }
1112
1113 asmlinkage int irix_quotactl(struct pt_regs *regs)
1114 {
1115         printk("[%s:%d] Wheee.. irix_quotactl()\n",
1116                current->comm, current->pid);
1117
1118         return -EINVAL;
1119 }
1120
1121 asmlinkage int irix_BSDsetpgrp(int pid, int pgrp)
1122 {
1123         int error;
1124
1125 #ifdef DEBUG_PROCGRPS
1126         printk("[%s:%d] BSDsetpgrp(%d, %d) ", current->comm, current->pid,
1127                pid, pgrp);
1128 #endif
1129         if(!pid)
1130                 pid = current->pid;
1131
1132         /* Wheee, weird sysv thing... */
1133         if ((pgrp == 0) && (pid == current->pid))
1134                 error = sys_setsid();
1135         else
1136                 error = sys_setpgid(pid, pgrp);
1137
1138 #ifdef DEBUG_PROCGRPS
1139         printk("error = %d\n", error);
1140 #endif
1141
1142         return error;
1143 }
1144
1145 asmlinkage int irix_systeminfo(int cmd, char *buf, int cnt)
1146 {
1147         printk("[%s:%d] Wheee.. irix_systeminfo(%d,%p,%d)\n",
1148                current->comm, current->pid, cmd, buf, cnt);
1149
1150         return -EINVAL;
1151 }
1152
1153 struct iuname {
1154         char sysname[257], nodename[257], release[257];
1155         char version[257], machine[257];
1156         char m_type[257], base_rel[257];
1157         char _unused0[257], _unused1[257], _unused2[257];
1158         char _unused3[257], _unused4[257], _unused5[257];
1159 };
1160
1161 asmlinkage int irix_uname(struct iuname *buf)
1162 {
1163         down_read(&uts_sem);
1164         if (copy_to_user(system_utsname.sysname, buf->sysname, 65)
1165             || copy_to_user(system_utsname.nodename, buf->nodename, 65)
1166             || copy_to_user(system_utsname.release, buf->release, 65)
1167             || copy_to_user(system_utsname.version, buf->version, 65)
1168             || copy_to_user(system_utsname.machine, buf->machine, 65)) {
1169                 return -EFAULT;
1170         }
1171         up_read(&uts_sem);
1172
1173         return 1;
1174 }
1175
1176 #undef DEBUG_XSTAT
1177
1178 static int irix_xstat32_xlate(struct kstat *stat, void *ubuf)
1179 {
1180         struct xstat32 {
1181                 u32 st_dev, st_pad1[3], st_ino, st_mode, st_nlink, st_uid, st_gid;
1182                 u32 st_rdev, st_pad2[2], st_size, st_pad3;
1183                 u32 st_atime0, st_atime1;
1184                 u32 st_mtime0, st_mtime1;
1185                 u32 st_ctime0, st_ctime1;
1186                 u32 st_blksize, st_blocks;
1187                 char st_fstype[16];
1188                 u32 st_pad4[8];
1189         } ub;
1190
1191         if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1192                 return -EOVERFLOW;
1193         ub.st_dev     = sysv_encode_dev(stat->dev);
1194         ub.st_ino     = stat->ino;
1195         ub.st_mode    = stat->mode;
1196         ub.st_nlink   = stat->nlink;
1197         SET_UID(ub.st_uid, stat->uid);
1198         SET_GID(ub.st_gid, stat->gid);
1199         ub.st_rdev    = sysv_encode_dev(stat->rdev);
1200 #if BITS_PER_LONG == 32
1201         if (stat->size > MAX_NON_LFS)
1202                 return -EOVERFLOW;
1203 #endif
1204         ub.st_size    = stat->size;
1205         ub.st_atime0  = stat->atime.tv_sec;
1206         ub.st_atime1  = stat->atime.tv_nsec;
1207         ub.st_mtime0  = stat->mtime.tv_sec;
1208         ub.st_mtime1  = stat->atime.tv_nsec;
1209         ub.st_ctime0  = stat->ctime.tv_sec;
1210         ub.st_ctime1  = stat->atime.tv_nsec;
1211         ub.st_blksize = stat->blksize;
1212         ub.st_blocks  = stat->blocks;
1213         strcpy (ub.st_fstype, "efs");
1214
1215         return copy_to_user(ubuf, &ub, sizeof(ub)) ? -EFAULT : 0;
1216 }
1217
1218 static int irix_xstat64_xlate(struct kstat *stat, void *ubuf)
1219 {
1220         struct xstat64 {
1221                 u32 st_dev; s32 st_pad1[3];
1222                 unsigned long long st_ino;
1223                 u32 st_mode;
1224                 u32 st_nlink; s32 st_uid; s32 st_gid; u32 st_rdev;
1225                 s32 st_pad2[2];
1226                 long long st_size;
1227                 s32 st_pad3;
1228                 struct { s32 tv_sec, tv_nsec; } st_atime, st_mtime, st_ctime;
1229                 s32 st_blksize;
1230                 long long  st_blocks;
1231                 char st_fstype[16];
1232                 s32 st_pad4[8];
1233         } ks;
1234
1235         if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1236                 return -EOVERFLOW;
1237
1238         ks.st_dev = sysv_encode_dev(stat->dev);
1239         ks.st_pad1[0] = ks.st_pad1[1] = ks.st_pad1[2] = 0;
1240         ks.st_ino = (unsigned long long) stat->ino;
1241         ks.st_mode = (u32) stat->mode;
1242         ks.st_nlink = (u32) stat->nlink;
1243         ks.st_uid = (s32) stat->uid;
1244         ks.st_gid = (s32) stat->gid;
1245         ks.st_rdev = sysv_encode_dev (stat->rdev);
1246         ks.st_pad2[0] = ks.st_pad2[1] = 0;
1247         ks.st_size = (long long) stat->size;
1248         ks.st_pad3 = 0;
1249
1250         /* XXX hackety hack... */
1251         ks.st_atime.tv_sec = (s32) stat->atime.tv_sec;
1252         ks.st_atime.tv_nsec = stat->atime.tv_nsec;
1253         ks.st_mtime.tv_sec = (s32) stat->mtime.tv_sec;
1254         ks.st_mtime.tv_nsec = stat->mtime.tv_nsec;
1255         ks.st_ctime.tv_sec = (s32) stat->ctime.tv_sec;
1256         ks.st_ctime.tv_nsec = stat->ctime.tv_nsec;
1257
1258         ks.st_blksize = (s32) stat->blksize;
1259         ks.st_blocks = (long long) stat->blocks;
1260         memset(ks.st_fstype, 0, 16);
1261         ks.st_pad4[0] = ks.st_pad4[1] = ks.st_pad4[2] = ks.st_pad4[3] = 0;
1262         ks.st_pad4[4] = ks.st_pad4[5] = ks.st_pad4[6] = ks.st_pad4[7] = 0;
1263
1264         /* Now write it all back. */
1265         return copy_to_user(ubuf, &ks, sizeof(ks)) ? -EFAULT : 0;
1266 }
1267
1268 asmlinkage int irix_xstat(int version, char *filename, struct stat *statbuf)
1269 {
1270         int retval;
1271         struct kstat stat;
1272
1273 #ifdef DEBUG_XSTAT
1274         printk("[%s:%d] Wheee.. irix_xstat(%d,%s,%p) ",
1275                current->comm, current->pid, version, filename, statbuf);
1276 #endif
1277
1278         retval = vfs_stat(filename, &stat);
1279         if (!retval) {
1280                 switch(version) {
1281                         case 2:
1282                                 retval = irix_xstat32_xlate(&stat, statbuf);
1283                                 break;
1284                         case 3:
1285                                 retval = irix_xstat64_xlate(&stat, statbuf);
1286                                 break;
1287                         default:
1288                                 retval = -EINVAL;
1289                 }
1290         }
1291         return retval;
1292 }
1293
1294 asmlinkage int irix_lxstat(int version, char *filename, struct stat *statbuf)
1295 {
1296         int error;
1297         struct kstat stat;
1298
1299 #ifdef DEBUG_XSTAT
1300         printk("[%s:%d] Wheee.. irix_lxstat(%d,%s,%p) ",
1301                current->comm, current->pid, version, filename, statbuf);
1302 #endif
1303
1304         error = vfs_lstat(filename, &stat);
1305
1306         if (!error) {
1307                 switch (version) {
1308                         case 2:
1309                                 error = irix_xstat32_xlate(&stat, statbuf);
1310                                 break;
1311                         case 3:
1312                                 error = irix_xstat64_xlate(&stat, statbuf);
1313                                 break;
1314                         default:
1315                                 error = -EINVAL;
1316                 }
1317         }
1318         return error;
1319 }
1320
1321 asmlinkage int irix_fxstat(int version, int fd, struct stat *statbuf)
1322 {
1323         int error;
1324         struct kstat stat;
1325
1326 #ifdef DEBUG_XSTAT
1327         printk("[%s:%d] Wheee.. irix_fxstat(%d,%d,%p) ",
1328                current->comm, current->pid, version, fd, statbuf);
1329 #endif
1330
1331         error = vfs_fstat(fd, &stat);
1332         if (!error) {
1333                 switch (version) {
1334                         case 2:
1335                                 error = irix_xstat32_xlate(&stat, statbuf);
1336                                 break;
1337                         case 3:
1338                                 error = irix_xstat64_xlate(&stat, statbuf);
1339                                 break;
1340                         default:
1341                                 error = -EINVAL;
1342                 }
1343         }
1344         return error;
1345 }
1346
1347 asmlinkage int irix_xmknod(int ver, char *filename, int mode, unsigned dev)
1348 {
1349         int retval;
1350         printk("[%s:%d] Wheee.. irix_xmknod(%d,%s,%x,%x)\n",
1351                current->comm, current->pid, ver, filename, mode, dev);
1352
1353         switch(ver) {
1354         case 2:
1355                 /* shouldn't we convert here as well as on stat()? */
1356                 retval = sys_mknod(filename, mode, dev);
1357                 break;
1358
1359         default:
1360                 retval = -EINVAL;
1361                 break;
1362         };
1363
1364         return retval;
1365 }
1366
1367 asmlinkage int irix_swapctl(int cmd, char *arg)
1368 {
1369         printk("[%s:%d] Wheee.. irix_swapctl(%d,%p)\n",
1370                current->comm, current->pid, cmd, arg);
1371
1372         return -EINVAL;
1373 }
1374
1375 struct irix_statvfs {
1376         u32 f_bsize; u32 f_frsize; u32 f_blocks;
1377         u32 f_bfree; u32 f_bavail; u32 f_files; u32 f_ffree; u32 f_favail;
1378         u32 f_fsid; char f_basetype[16];
1379         u32 f_flag; u32 f_namemax;
1380         char    f_fstr[32]; u32 f_filler[16];
1381 };
1382
1383 asmlinkage int irix_statvfs(char *fname, struct irix_statvfs *buf)
1384 {
1385         struct nameidata nd;
1386         struct kstatfs kbuf;
1387         int error, i;
1388
1389         printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
1390                current->comm, current->pid, fname, buf);
1391         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1392                 error = -EFAULT;
1393                 goto out;
1394         }
1395         error = user_path_walk(fname, &nd);
1396         if (error)
1397                 goto out;
1398         error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1399         if (error)
1400                 goto dput_and_out;
1401
1402         __put_user(kbuf.f_bsize, &buf->f_bsize);
1403         __put_user(kbuf.f_frsize, &buf->f_frsize);
1404         __put_user(kbuf.f_blocks, &buf->f_blocks);
1405         __put_user(kbuf.f_bfree, &buf->f_bfree);
1406         __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
1407         __put_user(kbuf.f_files, &buf->f_files);
1408         __put_user(kbuf.f_ffree, &buf->f_ffree);
1409         __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
1410 #ifdef __MIPSEB__
1411         __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1412 #else
1413         __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1414 #endif
1415         for (i = 0; i < 16; i++)
1416                 __put_user(0, &buf->f_basetype[i]);
1417         __put_user(0, &buf->f_flag);
1418         __put_user(kbuf.f_namelen, &buf->f_namemax);
1419         for (i = 0; i < 32; i++)
1420                 __put_user(0, &buf->f_fstr[i]);
1421
1422         error = 0;
1423
1424 dput_and_out:
1425         path_release(&nd);
1426 out:
1427         return error;
1428 }
1429
1430 asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs *buf)
1431 {
1432         struct kstatfs kbuf;
1433         struct file *file;
1434         int error, i;
1435
1436         printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
1437                current->comm, current->pid, fd, buf);
1438
1439         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1440                 error = -EFAULT;
1441                 goto out;
1442         }
1443         if (!(file = fget(fd))) {
1444                 error = -EBADF;
1445                 goto out;
1446         }
1447         error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1448         if (error)
1449                 goto out_f;
1450
1451         __put_user(kbuf.f_bsize, &buf->f_bsize);
1452         __put_user(kbuf.f_frsize, &buf->f_frsize);
1453         __put_user(kbuf.f_blocks, &buf->f_blocks);
1454         __put_user(kbuf.f_bfree, &buf->f_bfree);
1455         __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1456         __put_user(kbuf.f_files, &buf->f_files);
1457         __put_user(kbuf.f_ffree, &buf->f_ffree);
1458         __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1459 #ifdef __MIPSEB__
1460         __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1461 #else
1462         __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1463 #endif
1464         for(i = 0; i < 16; i++)
1465                 __put_user(0, &buf->f_basetype[i]);
1466         __put_user(0, &buf->f_flag);
1467         __put_user(kbuf.f_namelen, &buf->f_namemax);
1468         __clear_user(&buf->f_fstr, sizeof(buf->f_fstr));
1469
1470 out_f:
1471         fput(file);
1472 out:
1473         return error;
1474 }
1475
1476 asmlinkage int irix_priocntl(struct pt_regs *regs)
1477 {
1478         printk("[%s:%d] Wheee.. irix_priocntl()\n",
1479                current->comm, current->pid);
1480
1481         return -EINVAL;
1482 }
1483
1484 asmlinkage int irix_sigqueue(int pid, int sig, int code, int val)
1485 {
1486         printk("[%s:%d] Wheee.. irix_sigqueue(%d,%d,%d,%d)\n",
1487                current->comm, current->pid, pid, sig, code, val);
1488
1489         return -EINVAL;
1490 }
1491
1492 asmlinkage int irix_truncate64(char *name, int pad, int size1, int size2)
1493 {
1494         int retval;
1495
1496         if (size1) {
1497                 retval = -EINVAL;
1498                 goto out;
1499         }
1500         retval = sys_truncate(name, size2);
1501
1502 out:
1503         return retval;
1504 }
1505
1506 asmlinkage int irix_ftruncate64(int fd, int pad, int size1, int size2)
1507 {
1508         int retval;
1509
1510         if (size1) {
1511                 retval = -EINVAL;
1512                 goto out;
1513         }
1514         retval = sys_ftruncate(fd, size2);
1515
1516 out:
1517         return retval;
1518 }
1519
1520 asmlinkage int irix_mmap64(struct pt_regs *regs)
1521 {
1522         int len, prot, flags, fd, off1, off2, error, base = 0;
1523         unsigned long addr, pgoff, *sp;
1524         struct file *file = NULL;
1525
1526         if (regs->regs[2] == 1000)
1527                 base = 1;
1528         sp = (unsigned long *) (regs->regs[29] + 16);
1529         addr = regs->regs[base + 4];
1530         len = regs->regs[base + 5];
1531         prot = regs->regs[base + 6];
1532         if (!base) {
1533                 flags = regs->regs[base + 7];
1534                 if (!access_ok(VERIFY_READ, sp, (4 * sizeof(unsigned long)))) {
1535                         error = -EFAULT;
1536                         goto out;
1537                 }
1538                 fd = sp[0];
1539                 __get_user(off1, &sp[1]);
1540                 __get_user(off2, &sp[2]);
1541         } else {
1542                 if (!access_ok(VERIFY_READ, sp, (5 * sizeof(unsigned long)))) {
1543                         error = -EFAULT;
1544                         goto out;
1545                 }
1546                 __get_user(flags, &sp[0]);
1547                 __get_user(fd, &sp[1]);
1548                 __get_user(off1, &sp[2]);
1549                 __get_user(off2, &sp[3]);
1550         }
1551
1552         if (off1 & PAGE_MASK) {
1553                 error = -EOVERFLOW;
1554                 goto out;
1555         }
1556
1557         pgoff = (off1 << (32 - PAGE_SHIFT)) | (off2 >> PAGE_SHIFT);
1558
1559         if (!(flags & MAP_ANONYMOUS)) {
1560                 if (!(file = fget(fd))) {
1561                         error = -EBADF;
1562                         goto out;
1563                 }
1564
1565                 /* Ok, bad taste hack follows, try to think in something else
1566                    when reading this */
1567                 if (flags & IRIX_MAP_AUTOGROW) {
1568                         unsigned long old_pos;
1569                         long max_size = off2 + len;
1570
1571                         if (max_size > file->f_dentry->d_inode->i_size) {
1572                                 old_pos = sys_lseek (fd, max_size - 1, 0);
1573                                 sys_write (fd, "", 1);
1574                                 sys_lseek (fd, old_pos, 0);
1575                         }
1576                 }
1577         }
1578
1579         flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1580
1581         down_write(&current->mm->mmap_sem);
1582         error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
1583         up_write(&current->mm->mmap_sem);
1584
1585         if (file)
1586                 fput(file);
1587
1588 out:
1589         return error;
1590 }
1591
1592 asmlinkage int irix_dmi(struct pt_regs *regs)
1593 {
1594         printk("[%s:%d] Wheee.. irix_dmi()\n",
1595                current->comm, current->pid);
1596
1597         return -EINVAL;
1598 }
1599
1600 asmlinkage int irix_pread(int fd, char *buf, int cnt, int off64,
1601                           int off1, int off2)
1602 {
1603         printk("[%s:%d] Wheee.. irix_pread(%d,%p,%d,%d,%d,%d)\n",
1604                current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1605
1606         return -EINVAL;
1607 }
1608
1609 asmlinkage int irix_pwrite(int fd, char *buf, int cnt, int off64,
1610                            int off1, int off2)
1611 {
1612         printk("[%s:%d] Wheee.. irix_pwrite(%d,%p,%d,%d,%d,%d)\n",
1613                current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1614
1615         return -EINVAL;
1616 }
1617
1618 asmlinkage int irix_sgifastpath(int cmd, unsigned long arg0, unsigned long arg1,
1619                                 unsigned long arg2, unsigned long arg3,
1620                                 unsigned long arg4, unsigned long arg5)
1621 {
1622         printk("[%s:%d] Wheee.. irix_fastpath(%d,%08lx,%08lx,%08lx,%08lx,"
1623                "%08lx,%08lx)\n",
1624                current->comm, current->pid, cmd, arg0, arg1, arg2,
1625                arg3, arg4, arg5);
1626
1627         return -EINVAL;
1628 }
1629
1630 struct irix_statvfs64 {
1631         u32  f_bsize; u32 f_frsize;
1632         u64  f_blocks; u64 f_bfree; u64 f_bavail;
1633         u64  f_files; u64 f_ffree; u64 f_favail;
1634         u32  f_fsid;
1635         char f_basetype[16];
1636         u32  f_flag; u32 f_namemax;
1637         char f_fstr[32];
1638         u32  f_filler[16];
1639 };
1640
1641 asmlinkage int irix_statvfs64(char *fname, struct irix_statvfs64 *buf)
1642 {
1643         struct nameidata nd;
1644         struct kstatfs kbuf;
1645         int error, i;
1646
1647         printk("[%s:%d] Wheee.. irix_statvfs64(%s,%p)\n",
1648                current->comm, current->pid, fname, buf);
1649         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs64))) {
1650                 error = -EFAULT;
1651                 goto out;
1652         }
1653         error = user_path_walk(fname, &nd);
1654         if (error)
1655                 goto out;
1656         error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1657         if (error)
1658                 goto dput_and_out;
1659
1660         __put_user(kbuf.f_bsize, &buf->f_bsize);
1661         __put_user(kbuf.f_frsize, &buf->f_frsize);
1662         __put_user(kbuf.f_blocks, &buf->f_blocks);
1663         __put_user(kbuf.f_bfree, &buf->f_bfree);
1664         __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
1665         __put_user(kbuf.f_files, &buf->f_files);
1666         __put_user(kbuf.f_ffree, &buf->f_ffree);
1667         __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
1668 #ifdef __MIPSEB__
1669         __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1670 #else
1671         __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1672 #endif
1673         for(i = 0; i < 16; i++)
1674                 __put_user(0, &buf->f_basetype[i]);
1675         __put_user(0, &buf->f_flag);
1676         __put_user(kbuf.f_namelen, &buf->f_namemax);
1677         for(i = 0; i < 32; i++)
1678                 __put_user(0, &buf->f_fstr[i]);
1679
1680         error = 0;
1681
1682 dput_and_out:
1683         path_release(&nd);
1684 out:
1685         return error;
1686 }
1687
1688 asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs *buf)
1689 {
1690         struct kstatfs kbuf;
1691         struct file *file;
1692         int error, i;
1693
1694         printk("[%s:%d] Wheee.. irix_fstatvfs64(%d,%p)\n",
1695                current->comm, current->pid, fd, buf);
1696
1697         if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1698                 error = -EFAULT;
1699                 goto out;
1700         }
1701         if (!(file = fget(fd))) {
1702                 error = -EBADF;
1703                 goto out;
1704         }
1705         error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1706         if (error)
1707                 goto out_f;
1708
1709         __put_user(kbuf.f_bsize, &buf->f_bsize);
1710         __put_user(kbuf.f_frsize, &buf->f_frsize);
1711         __put_user(kbuf.f_blocks, &buf->f_blocks);
1712         __put_user(kbuf.f_bfree, &buf->f_bfree);
1713         __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
1714         __put_user(kbuf.f_files, &buf->f_files);
1715         __put_user(kbuf.f_ffree, &buf->f_ffree);
1716         __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
1717 #ifdef __MIPSEB__
1718         __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1719 #else
1720         __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1721 #endif
1722         for(i = 0; i < 16; i++)
1723                 __put_user(0, &buf->f_basetype[i]);
1724         __put_user(0, &buf->f_flag);
1725         __put_user(kbuf.f_namelen, &buf->f_namemax);
1726         __clear_user(buf->f_fstr, sizeof(buf->f_fstr[i]));
1727
1728 out_f:
1729         fput(file);
1730 out:
1731         return error;
1732 }
1733
1734 asmlinkage int irix_getmountid(char *fname, unsigned long *midbuf)
1735 {
1736         int err = 0;
1737
1738         printk("[%s:%d] irix_getmountid(%s, %p)\n",
1739                current->comm, current->pid, fname, midbuf);
1740         if (!access_ok(VERIFY_WRITE, midbuf, (sizeof(unsigned long) * 4)))
1741                 return -EFAULT;
1742
1743         /*
1744          * The idea with this system call is that when trying to determine
1745          * 'pwd' and it's a toss-up for some reason, userland can use the
1746          * fsid of the filesystem to try and make the right decision, but
1747          * we don't have this so for now. XXX
1748          */
1749         err |= __put_user(0, &midbuf[0]);
1750         err |= __put_user(0, &midbuf[1]);
1751         err |= __put_user(0, &midbuf[2]);
1752         err |= __put_user(0, &midbuf[3]);
1753
1754         return err;
1755 }
1756
1757 asmlinkage int irix_nsproc(unsigned long entry, unsigned long mask,
1758                            unsigned long arg, unsigned long sp, int slen)
1759 {
1760         printk("[%s:%d] Wheee.. irix_nsproc(%08lx,%08lx,%08lx,%08lx,%d)\n",
1761                current->comm, current->pid, entry, mask, arg, sp, slen);
1762
1763         return -EINVAL;
1764 }
1765
1766 #undef DEBUG_GETDENTS
1767
1768 struct irix_dirent32 {
1769         u32  d_ino;
1770         u32  d_off;
1771         unsigned short  d_reclen;
1772         char d_name[1];
1773 };
1774
1775 struct irix_dirent32_callback {
1776         struct irix_dirent32 *current_dir;
1777         struct irix_dirent32 *previous;
1778         int count;
1779         int error;
1780 };
1781
1782 #define NAME_OFFSET32(de) ((int) ((de)->d_name - (char *) (de)))
1783 #define ROUND_UP32(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
1784
1785 static int irix_filldir32(void *__buf, const char *name, int namlen,
1786                           loff_t offset, ino_t ino, unsigned int d_type)
1787 {
1788         struct irix_dirent32 *dirent;
1789         struct irix_dirent32_callback *buf =
1790                  (struct irix_dirent32_callback *)__buf;
1791         unsigned short reclen = ROUND_UP32(NAME_OFFSET32(dirent) + namlen + 1);
1792
1793 #ifdef DEBUG_GETDENTS
1794         printk("\nirix_filldir32[reclen<%d>namlen<%d>count<%d>]",
1795                reclen, namlen, buf->count);
1796 #endif
1797         buf->error = -EINVAL;   /* only used if we fail.. */
1798         if (reclen > buf->count)
1799                 return -EINVAL;
1800         dirent = buf->previous;
1801         if (dirent)
1802                 __put_user(offset, &dirent->d_off);
1803         dirent = buf->current_dir;
1804         buf->previous = dirent;
1805         __put_user(ino, &dirent->d_ino);
1806         __put_user(reclen, &dirent->d_reclen);
1807         copy_to_user(dirent->d_name, name, namlen);
1808         __put_user(0, &dirent->d_name[namlen]);
1809         ((char *) dirent) += reclen;
1810         buf->current_dir = dirent;
1811         buf->count -= reclen;
1812
1813         return 0;
1814 }
1815
1816 asmlinkage int irix_ngetdents(unsigned int fd, void * dirent,
1817         unsigned int count, int *eob)
1818 {
1819         struct file *file;
1820         struct irix_dirent32 *lastdirent;
1821         struct irix_dirent32_callback buf;
1822         int error;
1823
1824 #ifdef DEBUG_GETDENTS
1825         printk("[%s:%d] ngetdents(%d, %p, %d, %p) ", current->comm,
1826                current->pid, fd, dirent, count, eob);
1827 #endif
1828         error = -EBADF;
1829         file = fget(fd);
1830         if (!file)
1831                 goto out;
1832
1833         buf.current_dir = (struct irix_dirent32 *) dirent;
1834         buf.previous = NULL;
1835         buf.count = count;
1836         buf.error = 0;
1837
1838         error = vfs_readdir(file, irix_filldir32, &buf);
1839         if (error < 0)
1840                 goto out_putf;
1841
1842         error = buf.error;
1843         lastdirent = buf.previous;
1844         if (lastdirent) {
1845                 put_user(file->f_pos, &lastdirent->d_off);
1846                 error = count - buf.count;
1847         }
1848
1849         if (put_user(0, eob) < 0) {
1850                 error = -EFAULT;
1851                 goto out_putf;
1852         }
1853
1854 #ifdef DEBUG_GETDENTS
1855         printk("eob=%d returning %d\n", *eob, count - buf.count);
1856 #endif
1857         error = count - buf.count;
1858
1859 out_putf:
1860         fput(file);
1861 out:
1862         return error;
1863 }
1864
1865 struct irix_dirent64 {
1866         u64            d_ino;
1867         u64            d_off;
1868         unsigned short d_reclen;
1869         char           d_name[1];
1870 };
1871
1872 struct irix_dirent64_callback {
1873         struct irix_dirent64 *curr;
1874         struct irix_dirent64 *previous;
1875         int count;
1876         int error;
1877 };
1878
1879 #define NAME_OFFSET64(de) ((int) ((de)->d_name - (char *) (de)))
1880 #define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
1881
1882 static int irix_filldir64(void * __buf, const char * name, int namlen,
1883                           loff_t offset, ino_t ino, unsigned int d_type)
1884 {
1885         struct irix_dirent64 *dirent;
1886         struct irix_dirent64_callback * buf =
1887                 (struct irix_dirent64_callback *) __buf;
1888         unsigned short reclen = ROUND_UP64(NAME_OFFSET64(dirent) + namlen + 1);
1889
1890         buf->error = -EINVAL;   /* only used if we fail.. */
1891         if (reclen > buf->count)
1892                 return -EINVAL;
1893         dirent = buf->previous;
1894         if (dirent)
1895                 __put_user(offset, &dirent->d_off);
1896         dirent = buf->curr;
1897         buf->previous = dirent;
1898         __put_user(ino, &dirent->d_ino);
1899         __put_user(reclen, &dirent->d_reclen);
1900         __copy_to_user(dirent->d_name, name, namlen);
1901         __put_user(0, &dirent->d_name[namlen]);
1902         ((char *) dirent) += reclen;
1903         buf->curr = dirent;
1904         buf->count -= reclen;
1905
1906         return 0;
1907 }
1908
1909 asmlinkage int irix_getdents64(int fd, void *dirent, int cnt)
1910 {
1911         struct file *file;
1912         struct irix_dirent64 *lastdirent;
1913         struct irix_dirent64_callback buf;
1914         int error;
1915
1916 #ifdef DEBUG_GETDENTS
1917         printk("[%s:%d] getdents64(%d, %p, %d) ", current->comm,
1918                current->pid, fd, dirent, cnt);
1919 #endif
1920         error = -EBADF;
1921         if (!(file = fget(fd)))
1922                 goto out;
1923
1924         error = -EFAULT;
1925         if (!access_ok(VERIFY_WRITE, dirent, cnt))
1926                 goto out_f;
1927
1928         error = -EINVAL;
1929         if (cnt < (sizeof(struct irix_dirent64) + 255))
1930                 goto out_f;
1931
1932         buf.curr = (struct irix_dirent64 *) dirent;
1933         buf.previous = NULL;
1934         buf.count = cnt;
1935         buf.error = 0;
1936         error = vfs_readdir(file, irix_filldir64, &buf);
1937         if (error < 0)
1938                 goto out_f;
1939         lastdirent = buf.previous;
1940         if (!lastdirent) {
1941                 error = buf.error;
1942                 goto out_f;
1943         }
1944         lastdirent->d_off = (u64) file->f_pos;
1945 #ifdef DEBUG_GETDENTS
1946         printk("returning %d\n", cnt - buf.count);
1947 #endif
1948         error = cnt - buf.count;
1949
1950 out_f:
1951         fput(file);
1952 out:
1953         return error;
1954 }
1955
1956 asmlinkage int irix_ngetdents64(int fd, void *dirent, int cnt, int *eob)
1957 {
1958         struct file *file;
1959         struct irix_dirent64 *lastdirent;
1960         struct irix_dirent64_callback buf;
1961         int error;
1962
1963 #ifdef DEBUG_GETDENTS
1964         printk("[%s:%d] ngetdents64(%d, %p, %d) ", current->comm,
1965                current->pid, fd, dirent, cnt);
1966 #endif
1967         error = -EBADF;
1968         if (!(file = fget(fd)))
1969                 goto out;
1970
1971         error = -EFAULT;
1972         if (!access_ok(VERIFY_WRITE, dirent, cnt) ||
1973             !access_ok(VERIFY_WRITE, eob, sizeof(*eob)))
1974                 goto out_f;
1975
1976         error = -EINVAL;
1977         if (cnt < (sizeof(struct irix_dirent64) + 255))
1978                 goto out_f;
1979
1980         *eob = 0;
1981         buf.curr = (struct irix_dirent64 *) dirent;
1982         buf.previous = NULL;
1983         buf.count = cnt;
1984         buf.error = 0;
1985         error = vfs_readdir(file, irix_filldir64, &buf);
1986         if (error < 0)
1987                 goto out_f;
1988         lastdirent = buf.previous;
1989         if (!lastdirent) {
1990                 error = buf.error;
1991                 goto out_f;
1992         }
1993         lastdirent->d_off = (u64) file->f_pos;
1994 #ifdef DEBUG_GETDENTS
1995         printk("eob=%d returning %d\n", *eob, cnt - buf.count);
1996 #endif
1997         error = cnt - buf.count;
1998
1999 out_f:
2000         fput(file);
2001 out:
2002         return error;
2003 }
2004
2005 asmlinkage int irix_uadmin(unsigned long op, unsigned long func, unsigned long arg)
2006 {
2007         int retval;
2008
2009         switch (op) {
2010         case 1:
2011                 /* Reboot */
2012                 printk("[%s:%d] irix_uadmin: Wants to reboot...\n",
2013                        current->comm, current->pid);
2014                 retval = -EINVAL;
2015                 goto out;
2016
2017         case 2:
2018                 /* Shutdown */
2019                 printk("[%s:%d] irix_uadmin: Wants to shutdown...\n",
2020                        current->comm, current->pid);
2021                 retval = -EINVAL;
2022                 goto out;
2023
2024         case 4:
2025                 /* Remount-root */
2026                 printk("[%s:%d] irix_uadmin: Wants to remount root...\n",
2027                        current->comm, current->pid);
2028                 retval = -EINVAL;
2029                 goto out;
2030
2031         case 8:
2032                 /* Kill all tasks. */
2033                 printk("[%s:%d] irix_uadmin: Wants to kill all tasks...\n",
2034                        current->comm, current->pid);
2035                 retval = -EINVAL;
2036                 goto out;
2037
2038         case 256:
2039                 /* Set magic mushrooms... */
2040                 printk("[%s:%d] irix_uadmin: Wants to set magic mushroom[%d]...\n",
2041                        current->comm, current->pid, (int) func);
2042                 retval = -EINVAL;
2043                 goto out;
2044
2045         default:
2046                 printk("[%s:%d] irix_uadmin: Unknown operation [%d]...\n",
2047                        current->comm, current->pid, (int) op);
2048                 retval = -EINVAL;
2049                 goto out;
2050         };
2051
2052 out:
2053         return retval;
2054 }
2055
2056 asmlinkage int irix_utssys(char *inbuf, int arg, int type, char *outbuf)
2057 {
2058         int retval;
2059
2060         switch(type) {
2061         case 0:
2062                 /* uname() */
2063                 retval = irix_uname((struct iuname *)inbuf);
2064                 goto out;
2065
2066         case 2:
2067                 /* ustat() */
2068                 printk("[%s:%d] irix_utssys: Wants to do ustat()\n",
2069                        current->comm, current->pid);
2070                 retval = -EINVAL;
2071                 goto out;
2072
2073         case 3:
2074                 /* fusers() */
2075                 printk("[%s:%d] irix_utssys: Wants to do fusers()\n",
2076                        current->comm, current->pid);
2077                 retval = -EINVAL;
2078                 goto out;
2079
2080         default:
2081                 printk("[%s:%d] irix_utssys: Wants to do unknown type[%d]\n",
2082                        current->comm, current->pid, (int) type);
2083                 retval = -EINVAL;
2084                 goto out;
2085         }
2086
2087 out:
2088         return retval;
2089 }
2090
2091 #undef DEBUG_FCNTL
2092
2093 #define IRIX_F_ALLOCSP 10
2094
2095 asmlinkage int irix_fcntl(int fd, int cmd, int arg)
2096 {
2097         int retval;
2098
2099 #ifdef DEBUG_FCNTL
2100         printk("[%s:%d] irix_fcntl(%d, %d, %d) ", current->comm,
2101                current->pid, fd, cmd, arg);
2102 #endif
2103         if (cmd == IRIX_F_ALLOCSP){
2104                 return 0;
2105         }
2106         retval = sys_fcntl(fd, cmd, arg);
2107 #ifdef DEBUG_FCNTL
2108         printk("%d\n", retval);
2109 #endif
2110         return retval;
2111 }
2112
2113 asmlinkage int irix_ulimit(int cmd, int arg)
2114 {
2115         int retval;
2116
2117         switch(cmd) {
2118         case 1:
2119                 printk("[%s:%d] irix_ulimit: Wants to get file size limit.\n",
2120                        current->comm, current->pid);
2121                 retval = -EINVAL;
2122                 goto out;
2123
2124         case 2:
2125                 printk("[%s:%d] irix_ulimit: Wants to set file size limit.\n",
2126                        current->comm, current->pid);
2127                 retval = -EINVAL;
2128                 goto out;
2129
2130         case 3:
2131                 printk("[%s:%d] irix_ulimit: Wants to get brk limit.\n",
2132                        current->comm, current->pid);
2133                 retval = -EINVAL;
2134                 goto out;
2135
2136         case 4:
2137 #if 0
2138                 printk("[%s:%d] irix_ulimit: Wants to get fd limit.\n",
2139                        current->comm, current->pid);
2140                 retval = -EINVAL;
2141                 goto out;
2142 #endif
2143                 retval = current->signal->rlim[RLIMIT_NOFILE].rlim_cur;
2144                 goto out;
2145
2146         case 5:
2147                 printk("[%s:%d] irix_ulimit: Wants to get txt offset.\n",
2148                        current->comm, current->pid);
2149                 retval = -EINVAL;
2150                 goto out;
2151
2152         default:
2153                 printk("[%s:%d] irix_ulimit: Unknown command [%d].\n",
2154                        current->comm, current->pid, cmd);
2155                 retval = -EINVAL;
2156                 goto out;
2157         }
2158 out:
2159         return retval;
2160 }
2161
2162 asmlinkage int irix_unimp(struct pt_regs *regs)
2163 {
2164         printk("irix_unimp [%s:%d] v0=%d v1=%d a0=%08lx a1=%08lx a2=%08lx "
2165                "a3=%08lx\n", current->comm, current->pid,
2166                (int) regs->regs[2], (int) regs->regs[3],
2167                regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]);
2168
2169         return -ENOSYS;
2170 }