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Linux-2.6.12-rc2
[mirror_ubuntu-artful-kernel.git] / 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 time_adjust = 0; /* stop active adjtime() */
636 time_status |= STA_UNSYNC;
637 time_maxerror = NTP_PHASE_LIMIT;
638 time_esterror = NTP_PHASE_LIMIT;
639 write_sequnlock_irq(&xtime_lock);
640
641 return 0;
642 }
643
644 static inline void jiffiestotv(unsigned long jiffies, struct timeval *value)
645 {
646 value->tv_usec = (jiffies % HZ) * (1000000 / HZ);
647 value->tv_sec = jiffies / HZ;
648 }
649
650 static inline void getitimer_real(struct itimerval *value)
651 {
652 register unsigned long val, interval;
653
654 interval = current->it_real_incr;
655 val = 0;
656 if (del_timer(&current->real_timer)) {
657 unsigned long now = jiffies;
658 val = current->real_timer.expires;
659 add_timer(&current->real_timer);
660 /* look out for negative/zero itimer.. */
661 if (val <= now)
662 val = now+1;
663 val -= now;
664 }
665 jiffiestotv(val, &value->it_value);
666 jiffiestotv(interval, &value->it_interval);
667 }
668
669 asmlinkage unsigned int irix_alarm(unsigned int seconds)
670 {
671 struct itimerval it_new, it_old;
672 unsigned int oldalarm;
673
674 if (!seconds) {
675 getitimer_real(&it_old);
676 del_timer(&current->real_timer);
677 } else {
678 it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0;
679 it_new.it_value.tv_sec = seconds;
680 it_new.it_value.tv_usec = 0;
681 do_setitimer(ITIMER_REAL, &it_new, &it_old);
682 }
683 oldalarm = it_old.it_value.tv_sec;
684 /*
685 * ehhh.. We can't return 0 if we have an alarm pending ...
686 * And we'd better return too much than too little anyway
687 */
688 if (it_old.it_value.tv_usec)
689 oldalarm++;
690
691 return oldalarm;
692 }
693
694 asmlinkage int irix_pause(void)
695 {
696 current->state = TASK_INTERRUPTIBLE;
697 schedule();
698
699 return -EINTR;
700 }
701
702 /* XXX need more than this... */
703 asmlinkage int irix_mount(char *dev_name, char *dir_name, unsigned long flags,
704 char *type, void *data, int datalen)
705 {
706 printk("[%s:%d] irix_mount(%p,%p,%08lx,%p,%p,%d)\n",
707 current->comm, current->pid,
708 dev_name, dir_name, flags, type, data, datalen);
709
710 return sys_mount(dev_name, dir_name, type, flags, data);
711 }
712
713 struct irix_statfs {
714 short f_type;
715 long f_bsize, f_frsize, f_blocks, f_bfree, f_files, f_ffree;
716 char f_fname[6], f_fpack[6];
717 };
718
719 asmlinkage int irix_statfs(const char *path, struct irix_statfs *buf,
720 int len, int fs_type)
721 {
722 struct nameidata nd;
723 struct kstatfs kbuf;
724 int error, i;
725
726 /* We don't support this feature yet. */
727 if (fs_type) {
728 error = -EINVAL;
729 goto out;
730 }
731 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
732 error = -EFAULT;
733 goto out;
734 }
735 error = user_path_walk(path, &nd);
736 if (error)
737 goto out;
738
739 error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
740 if (error)
741 goto dput_and_out;
742
743 __put_user(kbuf.f_type, &buf->f_type);
744 __put_user(kbuf.f_bsize, &buf->f_bsize);
745 __put_user(kbuf.f_frsize, &buf->f_frsize);
746 __put_user(kbuf.f_blocks, &buf->f_blocks);
747 __put_user(kbuf.f_bfree, &buf->f_bfree);
748 __put_user(kbuf.f_files, &buf->f_files);
749 __put_user(kbuf.f_ffree, &buf->f_ffree);
750 for (i = 0; i < 6; i++) {
751 __put_user(0, &buf->f_fname[i]);
752 __put_user(0, &buf->f_fpack[i]);
753 }
754 error = 0;
755
756 dput_and_out:
757 path_release(&nd);
758 out:
759 return error;
760 }
761
762 asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs *buf)
763 {
764 struct kstatfs kbuf;
765 struct file *file;
766 int error, i;
767
768 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
769 error = -EFAULT;
770 goto out;
771 }
772 if (!(file = fget(fd))) {
773 error = -EBADF;
774 goto out;
775 }
776
777 error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
778 if (error)
779 goto out_f;
780
781 __put_user(kbuf.f_type, &buf->f_type);
782 __put_user(kbuf.f_bsize, &buf->f_bsize);
783 __put_user(kbuf.f_frsize, &buf->f_frsize);
784 __put_user(kbuf.f_blocks, &buf->f_blocks);
785 __put_user(kbuf.f_bfree, &buf->f_bfree);
786 __put_user(kbuf.f_files, &buf->f_files);
787 __put_user(kbuf.f_ffree, &buf->f_ffree);
788 for(i = 0; i < 6; i++) {
789 __put_user(0, &buf->f_fname[i]);
790 __put_user(0, &buf->f_fpack[i]);
791 }
792
793 out_f:
794 fput(file);
795 out:
796 return error;
797 }
798
799 asmlinkage int irix_setpgrp(int flags)
800 {
801 int error;
802
803 #ifdef DEBUG_PROCGRPS
804 printk("[%s:%d] setpgrp(%d) ", current->comm, current->pid, flags);
805 #endif
806 if(!flags)
807 error = process_group(current);
808 else
809 error = sys_setsid();
810 #ifdef DEBUG_PROCGRPS
811 printk("returning %d\n", process_group(current));
812 #endif
813
814 return error;
815 }
816
817 asmlinkage int irix_times(struct tms * tbuf)
818 {
819 int err = 0;
820
821 if (tbuf) {
822 if (!access_ok(VERIFY_WRITE,tbuf,sizeof *tbuf))
823 return -EFAULT;
824 err |= __put_user(current->utime, &tbuf->tms_utime);
825 err |= __put_user(current->stime, &tbuf->tms_stime);
826 err |= __put_user(current->signal->cutime, &tbuf->tms_cutime);
827 err |= __put_user(current->signal->cstime, &tbuf->tms_cstime);
828 }
829
830 return err;
831 }
832
833 asmlinkage int irix_exec(struct pt_regs *regs)
834 {
835 int error, base = 0;
836 char *filename;
837
838 if(regs->regs[2] == 1000)
839 base = 1;
840 filename = getname((char *) (long)regs->regs[base + 4]);
841 error = PTR_ERR(filename);
842 if (IS_ERR(filename))
843 return error;
844
845 error = do_execve(filename, (char **) (long)regs->regs[base + 5],
846 (char **) 0, regs);
847 putname(filename);
848
849 return error;
850 }
851
852 asmlinkage int irix_exece(struct pt_regs *regs)
853 {
854 int error, base = 0;
855 char *filename;
856
857 if (regs->regs[2] == 1000)
858 base = 1;
859 filename = getname((char *) (long)regs->regs[base + 4]);
860 error = PTR_ERR(filename);
861 if (IS_ERR(filename))
862 return error;
863 error = do_execve(filename, (char **) (long)regs->regs[base + 5],
864 (char **) (long)regs->regs[base + 6], regs);
865 putname(filename);
866
867 return error;
868 }
869
870 asmlinkage unsigned long irix_gethostid(void)
871 {
872 printk("[%s:%d]: irix_gethostid() called...\n",
873 current->comm, current->pid);
874
875 return -EINVAL;
876 }
877
878 asmlinkage unsigned long irix_sethostid(unsigned long val)
879 {
880 printk("[%s:%d]: irix_sethostid(%08lx) called...\n",
881 current->comm, current->pid, val);
882
883 return -EINVAL;
884 }
885
886 asmlinkage int irix_socket(int family, int type, int protocol)
887 {
888 switch(type) {
889 case 1:
890 type = SOCK_DGRAM;
891 break;
892
893 case 2:
894 type = SOCK_STREAM;
895 break;
896
897 case 3:
898 type = 9; /* Invalid... */
899 break;
900
901 case 4:
902 type = SOCK_RAW;
903 break;
904
905 case 5:
906 type = SOCK_RDM;
907 break;
908
909 case 6:
910 type = SOCK_SEQPACKET;
911 break;
912
913 default:
914 break;
915 }
916
917 return sys_socket(family, type, protocol);
918 }
919
920 asmlinkage int irix_getdomainname(char *name, int len)
921 {
922 int error;
923
924 if (!access_ok(VERIFY_WRITE, name, len))
925 return -EFAULT;
926
927 down_read(&uts_sem);
928 if (len > __NEW_UTS_LEN)
929 len = __NEW_UTS_LEN;
930 error = 0;
931 if (copy_to_user(name, system_utsname.domainname, len))
932 error = -EFAULT;
933 up_read(&uts_sem);
934
935 return error;
936 }
937
938 asmlinkage unsigned long irix_getpagesize(void)
939 {
940 return PAGE_SIZE;
941 }
942
943 asmlinkage int irix_msgsys(int opcode, unsigned long arg0, unsigned long arg1,
944 unsigned long arg2, unsigned long arg3,
945 unsigned long arg4)
946 {
947 switch (opcode) {
948 case 0:
949 return sys_msgget((key_t) arg0, (int) arg1);
950 case 1:
951 return sys_msgctl((int) arg0, (int) arg1, (struct msqid_ds *)arg2);
952 case 2:
953 return sys_msgrcv((int) arg0, (struct msgbuf *) arg1,
954 (size_t) arg2, (long) arg3, (int) arg4);
955 case 3:
956 return sys_msgsnd((int) arg0, (struct msgbuf *) arg1,
957 (size_t) arg2, (int) arg3);
958 default:
959 return -EINVAL;
960 }
961 }
962
963 asmlinkage int irix_shmsys(int opcode, unsigned long arg0, unsigned long arg1,
964 unsigned long arg2, unsigned long arg3)
965 {
966 switch (opcode) {
967 case 0:
968 return do_shmat((int) arg0, (char *)arg1, (int) arg2,
969 (unsigned long *) arg3);
970 case 1:
971 return sys_shmctl((int)arg0, (int)arg1, (struct shmid_ds *)arg2);
972 case 2:
973 return sys_shmdt((char *)arg0);
974 case 3:
975 return sys_shmget((key_t) arg0, (int) arg1, (int) arg2);
976 default:
977 return -EINVAL;
978 }
979 }
980
981 asmlinkage int irix_semsys(int opcode, unsigned long arg0, unsigned long arg1,
982 unsigned long arg2, int arg3)
983 {
984 switch (opcode) {
985 case 0:
986 return sys_semctl((int) arg0, (int) arg1, (int) arg2,
987 (union semun) arg3);
988 case 1:
989 return sys_semget((key_t) arg0, (int) arg1, (int) arg2);
990 case 2:
991 return sys_semop((int) arg0, (struct sembuf *)arg1,
992 (unsigned int) arg2);
993 default:
994 return -EINVAL;
995 }
996 }
997
998 static inline loff_t llseek(struct file *file, loff_t offset, int origin)
999 {
1000 loff_t (*fn)(struct file *, loff_t, int);
1001 loff_t retval;
1002
1003 fn = default_llseek;
1004 if (file->f_op && file->f_op->llseek)
1005 fn = file->f_op->llseek;
1006 lock_kernel();
1007 retval = fn(file, offset, origin);
1008 unlock_kernel();
1009 return retval;
1010 }
1011
1012 asmlinkage int irix_lseek64(int fd, int _unused, int offhi, int offlow,
1013 int origin)
1014 {
1015 int retval;
1016 struct file * file;
1017 loff_t offset;
1018
1019 retval = -EBADF;
1020 file = fget(fd);
1021 if (!file)
1022 goto bad;
1023 retval = -EINVAL;
1024 if (origin > 2)
1025 goto out_putf;
1026
1027 offset = llseek(file, ((loff_t) offhi << 32) | offlow, origin);
1028 retval = (int) offset;
1029
1030 out_putf:
1031 fput(file);
1032 bad:
1033 return retval;
1034 }
1035
1036 asmlinkage int irix_sginap(int ticks)
1037 {
1038 current->state = TASK_INTERRUPTIBLE;
1039 schedule_timeout(ticks);
1040 return 0;
1041 }
1042
1043 asmlinkage int irix_sgikopt(char *istring, char *ostring, int len)
1044 {
1045 return -EINVAL;
1046 }
1047
1048 asmlinkage int irix_gettimeofday(struct timeval *tv)
1049 {
1050 time_t sec;
1051 long nsec, seq;
1052 int err;
1053
1054 if (!access_ok(VERIFY_WRITE, tv, sizeof(struct timeval)))
1055 return -EFAULT;
1056
1057 do {
1058 seq = read_seqbegin(&xtime_lock);
1059 sec = xtime.tv_sec;
1060 nsec = xtime.tv_nsec;
1061 } while (read_seqretry(&xtime_lock, seq));
1062
1063 err = __put_user(sec, &tv->tv_sec);
1064 err |= __put_user((nsec / 1000), &tv->tv_usec);
1065
1066 return err;
1067 }
1068
1069 #define IRIX_MAP_AUTOGROW 0x40
1070
1071 asmlinkage unsigned long irix_mmap32(unsigned long addr, size_t len, int prot,
1072 int flags, int fd, off_t offset)
1073 {
1074 struct file *file = NULL;
1075 unsigned long retval;
1076
1077 if (!(flags & MAP_ANONYMOUS)) {
1078 if (!(file = fget(fd)))
1079 return -EBADF;
1080
1081 /* Ok, bad taste hack follows, try to think in something else
1082 * when reading this. */
1083 if (flags & IRIX_MAP_AUTOGROW) {
1084 unsigned long old_pos;
1085 long max_size = offset + len;
1086
1087 if (max_size > file->f_dentry->d_inode->i_size) {
1088 old_pos = sys_lseek (fd, max_size - 1, 0);
1089 sys_write (fd, "", 1);
1090 sys_lseek (fd, old_pos, 0);
1091 }
1092 }
1093 }
1094
1095 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1096
1097 down_write(&current->mm->mmap_sem);
1098 retval = do_mmap(file, addr, len, prot, flags, offset);
1099 up_write(&current->mm->mmap_sem);
1100 if (file)
1101 fput(file);
1102
1103 return retval;
1104 }
1105
1106 asmlinkage int irix_madvise(unsigned long addr, int len, int behavior)
1107 {
1108 printk("[%s:%d] Wheee.. irix_madvise(%08lx,%d,%d)\n",
1109 current->comm, current->pid, addr, len, behavior);
1110
1111 return -EINVAL;
1112 }
1113
1114 asmlinkage int irix_pagelock(char *addr, int len, int op)
1115 {
1116 printk("[%s:%d] Wheee.. irix_pagelock(%p,%d,%d)\n",
1117 current->comm, current->pid, addr, len, op);
1118
1119 return -EINVAL;
1120 }
1121
1122 asmlinkage int irix_quotactl(struct pt_regs *regs)
1123 {
1124 printk("[%s:%d] Wheee.. irix_quotactl()\n",
1125 current->comm, current->pid);
1126
1127 return -EINVAL;
1128 }
1129
1130 asmlinkage int irix_BSDsetpgrp(int pid, int pgrp)
1131 {
1132 int error;
1133
1134 #ifdef DEBUG_PROCGRPS
1135 printk("[%s:%d] BSDsetpgrp(%d, %d) ", current->comm, current->pid,
1136 pid, pgrp);
1137 #endif
1138 if(!pid)
1139 pid = current->pid;
1140
1141 /* Wheee, weird sysv thing... */
1142 if ((pgrp == 0) && (pid == current->pid))
1143 error = sys_setsid();
1144 else
1145 error = sys_setpgid(pid, pgrp);
1146
1147 #ifdef DEBUG_PROCGRPS
1148 printk("error = %d\n", error);
1149 #endif
1150
1151 return error;
1152 }
1153
1154 asmlinkage int irix_systeminfo(int cmd, char *buf, int cnt)
1155 {
1156 printk("[%s:%d] Wheee.. irix_systeminfo(%d,%p,%d)\n",
1157 current->comm, current->pid, cmd, buf, cnt);
1158
1159 return -EINVAL;
1160 }
1161
1162 struct iuname {
1163 char sysname[257], nodename[257], release[257];
1164 char version[257], machine[257];
1165 char m_type[257], base_rel[257];
1166 char _unused0[257], _unused1[257], _unused2[257];
1167 char _unused3[257], _unused4[257], _unused5[257];
1168 };
1169
1170 asmlinkage int irix_uname(struct iuname *buf)
1171 {
1172 down_read(&uts_sem);
1173 if (copy_to_user(system_utsname.sysname, buf->sysname, 65)
1174 || copy_to_user(system_utsname.nodename, buf->nodename, 65)
1175 || copy_to_user(system_utsname.release, buf->release, 65)
1176 || copy_to_user(system_utsname.version, buf->version, 65)
1177 || copy_to_user(system_utsname.machine, buf->machine, 65)) {
1178 return -EFAULT;
1179 }
1180 up_read(&uts_sem);
1181
1182 return 1;
1183 }
1184
1185 #undef DEBUG_XSTAT
1186
1187 static int irix_xstat32_xlate(struct kstat *stat, void *ubuf)
1188 {
1189 struct xstat32 {
1190 u32 st_dev, st_pad1[3], st_ino, st_mode, st_nlink, st_uid, st_gid;
1191 u32 st_rdev, st_pad2[2], st_size, st_pad3;
1192 u32 st_atime0, st_atime1;
1193 u32 st_mtime0, st_mtime1;
1194 u32 st_ctime0, st_ctime1;
1195 u32 st_blksize, st_blocks;
1196 char st_fstype[16];
1197 u32 st_pad4[8];
1198 } ub;
1199
1200 if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1201 return -EOVERFLOW;
1202 ub.st_dev = sysv_encode_dev(stat->dev);
1203 ub.st_ino = stat->ino;
1204 ub.st_mode = stat->mode;
1205 ub.st_nlink = stat->nlink;
1206 SET_UID(ub.st_uid, stat->uid);
1207 SET_GID(ub.st_gid, stat->gid);
1208 ub.st_rdev = sysv_encode_dev(stat->rdev);
1209 #if BITS_PER_LONG == 32
1210 if (stat->size > MAX_NON_LFS)
1211 return -EOVERFLOW;
1212 #endif
1213 ub.st_size = stat->size;
1214 ub.st_atime0 = stat->atime.tv_sec;
1215 ub.st_atime1 = stat->atime.tv_nsec;
1216 ub.st_mtime0 = stat->mtime.tv_sec;
1217 ub.st_mtime1 = stat->atime.tv_nsec;
1218 ub.st_ctime0 = stat->ctime.tv_sec;
1219 ub.st_ctime1 = stat->atime.tv_nsec;
1220 ub.st_blksize = stat->blksize;
1221 ub.st_blocks = stat->blocks;
1222 strcpy (ub.st_fstype, "efs");
1223
1224 return copy_to_user(ubuf, &ub, sizeof(ub)) ? -EFAULT : 0;
1225 }
1226
1227 static int irix_xstat64_xlate(struct kstat *stat, void *ubuf)
1228 {
1229 struct xstat64 {
1230 u32 st_dev; s32 st_pad1[3];
1231 unsigned long long st_ino;
1232 u32 st_mode;
1233 u32 st_nlink; s32 st_uid; s32 st_gid; u32 st_rdev;
1234 s32 st_pad2[2];
1235 long long st_size;
1236 s32 st_pad3;
1237 struct { s32 tv_sec, tv_nsec; } st_atime, st_mtime, st_ctime;
1238 s32 st_blksize;
1239 long long st_blocks;
1240 char st_fstype[16];
1241 s32 st_pad4[8];
1242 } ks;
1243
1244 if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1245 return -EOVERFLOW;
1246
1247 ks.st_dev = sysv_encode_dev(stat->dev);
1248 ks.st_pad1[0] = ks.st_pad1[1] = ks.st_pad1[2] = 0;
1249 ks.st_ino = (unsigned long long) stat->ino;
1250 ks.st_mode = (u32) stat->mode;
1251 ks.st_nlink = (u32) stat->nlink;
1252 ks.st_uid = (s32) stat->uid;
1253 ks.st_gid = (s32) stat->gid;
1254 ks.st_rdev = sysv_encode_dev (stat->rdev);
1255 ks.st_pad2[0] = ks.st_pad2[1] = 0;
1256 ks.st_size = (long long) stat->size;
1257 ks.st_pad3 = 0;
1258
1259 /* XXX hackety hack... */
1260 ks.st_atime.tv_sec = (s32) stat->atime.tv_sec;
1261 ks.st_atime.tv_nsec = stat->atime.tv_nsec;
1262 ks.st_mtime.tv_sec = (s32) stat->mtime.tv_sec;
1263 ks.st_mtime.tv_nsec = stat->mtime.tv_nsec;
1264 ks.st_ctime.tv_sec = (s32) stat->ctime.tv_sec;
1265 ks.st_ctime.tv_nsec = stat->ctime.tv_nsec;
1266
1267 ks.st_blksize = (s32) stat->blksize;
1268 ks.st_blocks = (long long) stat->blocks;
1269 memset(ks.st_fstype, 0, 16);
1270 ks.st_pad4[0] = ks.st_pad4[1] = ks.st_pad4[2] = ks.st_pad4[3] = 0;
1271 ks.st_pad4[4] = ks.st_pad4[5] = ks.st_pad4[6] = ks.st_pad4[7] = 0;
1272
1273 /* Now write it all back. */
1274 return copy_to_user(ubuf, &ks, sizeof(ks)) ? -EFAULT : 0;
1275 }
1276
1277 asmlinkage int irix_xstat(int version, char *filename, struct stat *statbuf)
1278 {
1279 int retval;
1280 struct kstat stat;
1281
1282 #ifdef DEBUG_XSTAT
1283 printk("[%s:%d] Wheee.. irix_xstat(%d,%s,%p) ",
1284 current->comm, current->pid, version, filename, statbuf);
1285 #endif
1286
1287 retval = vfs_stat(filename, &stat);
1288 if (!retval) {
1289 switch(version) {
1290 case 2:
1291 retval = irix_xstat32_xlate(&stat, statbuf);
1292 break;
1293 case 3:
1294 retval = irix_xstat64_xlate(&stat, statbuf);
1295 break;
1296 default:
1297 retval = -EINVAL;
1298 }
1299 }
1300 return retval;
1301 }
1302
1303 asmlinkage int irix_lxstat(int version, char *filename, struct stat *statbuf)
1304 {
1305 int error;
1306 struct kstat stat;
1307
1308 #ifdef DEBUG_XSTAT
1309 printk("[%s:%d] Wheee.. irix_lxstat(%d,%s,%p) ",
1310 current->comm, current->pid, version, filename, statbuf);
1311 #endif
1312
1313 error = vfs_lstat(filename, &stat);
1314
1315 if (!error) {
1316 switch (version) {
1317 case 2:
1318 error = irix_xstat32_xlate(&stat, statbuf);
1319 break;
1320 case 3:
1321 error = irix_xstat64_xlate(&stat, statbuf);
1322 break;
1323 default:
1324 error = -EINVAL;
1325 }
1326 }
1327 return error;
1328 }
1329
1330 asmlinkage int irix_fxstat(int version, int fd, struct stat *statbuf)
1331 {
1332 int error;
1333 struct kstat stat;
1334
1335 #ifdef DEBUG_XSTAT
1336 printk("[%s:%d] Wheee.. irix_fxstat(%d,%d,%p) ",
1337 current->comm, current->pid, version, fd, statbuf);
1338 #endif
1339
1340 error = vfs_fstat(fd, &stat);
1341 if (!error) {
1342 switch (version) {
1343 case 2:
1344 error = irix_xstat32_xlate(&stat, statbuf);
1345 break;
1346 case 3:
1347 error = irix_xstat64_xlate(&stat, statbuf);
1348 break;
1349 default:
1350 error = -EINVAL;
1351 }
1352 }
1353 return error;
1354 }
1355
1356 asmlinkage int irix_xmknod(int ver, char *filename, int mode, unsigned dev)
1357 {
1358 int retval;
1359 printk("[%s:%d] Wheee.. irix_xmknod(%d,%s,%x,%x)\n",
1360 current->comm, current->pid, ver, filename, mode, dev);
1361
1362 switch(ver) {
1363 case 2:
1364 /* shouldn't we convert here as well as on stat()? */
1365 retval = sys_mknod(filename, mode, dev);
1366 break;
1367
1368 default:
1369 retval = -EINVAL;
1370 break;
1371 };
1372
1373 return retval;
1374 }
1375
1376 asmlinkage int irix_swapctl(int cmd, char *arg)
1377 {
1378 printk("[%s:%d] Wheee.. irix_swapctl(%d,%p)\n",
1379 current->comm, current->pid, cmd, arg);
1380
1381 return -EINVAL;
1382 }
1383
1384 struct irix_statvfs {
1385 u32 f_bsize; u32 f_frsize; u32 f_blocks;
1386 u32 f_bfree; u32 f_bavail; u32 f_files; u32 f_ffree; u32 f_favail;
1387 u32 f_fsid; char f_basetype[16];
1388 u32 f_flag; u32 f_namemax;
1389 char f_fstr[32]; u32 f_filler[16];
1390 };
1391
1392 asmlinkage int irix_statvfs(char *fname, struct irix_statvfs *buf)
1393 {
1394 struct nameidata nd;
1395 struct kstatfs kbuf;
1396 int error, i;
1397
1398 printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
1399 current->comm, current->pid, fname, buf);
1400 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1401 error = -EFAULT;
1402 goto out;
1403 }
1404 error = user_path_walk(fname, &nd);
1405 if (error)
1406 goto out;
1407 error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1408 if (error)
1409 goto dput_and_out;
1410
1411 __put_user(kbuf.f_bsize, &buf->f_bsize);
1412 __put_user(kbuf.f_frsize, &buf->f_frsize);
1413 __put_user(kbuf.f_blocks, &buf->f_blocks);
1414 __put_user(kbuf.f_bfree, &buf->f_bfree);
1415 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1416 __put_user(kbuf.f_files, &buf->f_files);
1417 __put_user(kbuf.f_ffree, &buf->f_ffree);
1418 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1419 #ifdef __MIPSEB__
1420 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1421 #else
1422 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1423 #endif
1424 for (i = 0; i < 16; i++)
1425 __put_user(0, &buf->f_basetype[i]);
1426 __put_user(0, &buf->f_flag);
1427 __put_user(kbuf.f_namelen, &buf->f_namemax);
1428 for (i = 0; i < 32; i++)
1429 __put_user(0, &buf->f_fstr[i]);
1430
1431 error = 0;
1432
1433 dput_and_out:
1434 path_release(&nd);
1435 out:
1436 return error;
1437 }
1438
1439 asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs *buf)
1440 {
1441 struct kstatfs kbuf;
1442 struct file *file;
1443 int error, i;
1444
1445 printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
1446 current->comm, current->pid, fd, buf);
1447
1448 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1449 error = -EFAULT;
1450 goto out;
1451 }
1452 if (!(file = fget(fd))) {
1453 error = -EBADF;
1454 goto out;
1455 }
1456 error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1457 if (error)
1458 goto out_f;
1459
1460 __put_user(kbuf.f_bsize, &buf->f_bsize);
1461 __put_user(kbuf.f_frsize, &buf->f_frsize);
1462 __put_user(kbuf.f_blocks, &buf->f_blocks);
1463 __put_user(kbuf.f_bfree, &buf->f_bfree);
1464 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1465 __put_user(kbuf.f_files, &buf->f_files);
1466 __put_user(kbuf.f_ffree, &buf->f_ffree);
1467 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1468 #ifdef __MIPSEB__
1469 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1470 #else
1471 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1472 #endif
1473 for(i = 0; i < 16; i++)
1474 __put_user(0, &buf->f_basetype[i]);
1475 __put_user(0, &buf->f_flag);
1476 __put_user(kbuf.f_namelen, &buf->f_namemax);
1477 __clear_user(&buf->f_fstr, sizeof(buf->f_fstr));
1478
1479 out_f:
1480 fput(file);
1481 out:
1482 return error;
1483 }
1484
1485 asmlinkage int irix_priocntl(struct pt_regs *regs)
1486 {
1487 printk("[%s:%d] Wheee.. irix_priocntl()\n",
1488 current->comm, current->pid);
1489
1490 return -EINVAL;
1491 }
1492
1493 asmlinkage int irix_sigqueue(int pid, int sig, int code, int val)
1494 {
1495 printk("[%s:%d] Wheee.. irix_sigqueue(%d,%d,%d,%d)\n",
1496 current->comm, current->pid, pid, sig, code, val);
1497
1498 return -EINVAL;
1499 }
1500
1501 asmlinkage int irix_truncate64(char *name, int pad, int size1, int size2)
1502 {
1503 int retval;
1504
1505 if (size1) {
1506 retval = -EINVAL;
1507 goto out;
1508 }
1509 retval = sys_truncate(name, size2);
1510
1511 out:
1512 return retval;
1513 }
1514
1515 asmlinkage int irix_ftruncate64(int fd, int pad, int size1, int size2)
1516 {
1517 int retval;
1518
1519 if (size1) {
1520 retval = -EINVAL;
1521 goto out;
1522 }
1523 retval = sys_ftruncate(fd, size2);
1524
1525 out:
1526 return retval;
1527 }
1528
1529 asmlinkage int irix_mmap64(struct pt_regs *regs)
1530 {
1531 int len, prot, flags, fd, off1, off2, error, base = 0;
1532 unsigned long addr, pgoff, *sp;
1533 struct file *file = NULL;
1534
1535 if (regs->regs[2] == 1000)
1536 base = 1;
1537 sp = (unsigned long *) (regs->regs[29] + 16);
1538 addr = regs->regs[base + 4];
1539 len = regs->regs[base + 5];
1540 prot = regs->regs[base + 6];
1541 if (!base) {
1542 flags = regs->regs[base + 7];
1543 if (!access_ok(VERIFY_READ, sp, (4 * sizeof(unsigned long)))) {
1544 error = -EFAULT;
1545 goto out;
1546 }
1547 fd = sp[0];
1548 __get_user(off1, &sp[1]);
1549 __get_user(off2, &sp[2]);
1550 } else {
1551 if (!access_ok(VERIFY_READ, sp, (5 * sizeof(unsigned long)))) {
1552 error = -EFAULT;
1553 goto out;
1554 }
1555 __get_user(flags, &sp[0]);
1556 __get_user(fd, &sp[1]);
1557 __get_user(off1, &sp[2]);
1558 __get_user(off2, &sp[3]);
1559 }
1560
1561 if (off1 & PAGE_MASK) {
1562 error = -EOVERFLOW;
1563 goto out;
1564 }
1565
1566 pgoff = (off1 << (32 - PAGE_SHIFT)) | (off2 >> PAGE_SHIFT);
1567
1568 if (!(flags & MAP_ANONYMOUS)) {
1569 if (!(file = fget(fd))) {
1570 error = -EBADF;
1571 goto out;
1572 }
1573
1574 /* Ok, bad taste hack follows, try to think in something else
1575 when reading this */
1576 if (flags & IRIX_MAP_AUTOGROW) {
1577 unsigned long old_pos;
1578 long max_size = off2 + len;
1579
1580 if (max_size > file->f_dentry->d_inode->i_size) {
1581 old_pos = sys_lseek (fd, max_size - 1, 0);
1582 sys_write (fd, "", 1);
1583 sys_lseek (fd, old_pos, 0);
1584 }
1585 }
1586 }
1587
1588 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1589
1590 down_write(&current->mm->mmap_sem);
1591 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
1592 up_write(&current->mm->mmap_sem);
1593
1594 if (file)
1595 fput(file);
1596
1597 out:
1598 return error;
1599 }
1600
1601 asmlinkage int irix_dmi(struct pt_regs *regs)
1602 {
1603 printk("[%s:%d] Wheee.. irix_dmi()\n",
1604 current->comm, current->pid);
1605
1606 return -EINVAL;
1607 }
1608
1609 asmlinkage int irix_pread(int fd, char *buf, int cnt, int off64,
1610 int off1, int off2)
1611 {
1612 printk("[%s:%d] Wheee.. irix_pread(%d,%p,%d,%d,%d,%d)\n",
1613 current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1614
1615 return -EINVAL;
1616 }
1617
1618 asmlinkage int irix_pwrite(int fd, char *buf, int cnt, int off64,
1619 int off1, int off2)
1620 {
1621 printk("[%s:%d] Wheee.. irix_pwrite(%d,%p,%d,%d,%d,%d)\n",
1622 current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1623
1624 return -EINVAL;
1625 }
1626
1627 asmlinkage int irix_sgifastpath(int cmd, unsigned long arg0, unsigned long arg1,
1628 unsigned long arg2, unsigned long arg3,
1629 unsigned long arg4, unsigned long arg5)
1630 {
1631 printk("[%s:%d] Wheee.. irix_fastpath(%d,%08lx,%08lx,%08lx,%08lx,"
1632 "%08lx,%08lx)\n",
1633 current->comm, current->pid, cmd, arg0, arg1, arg2,
1634 arg3, arg4, arg5);
1635
1636 return -EINVAL;
1637 }
1638
1639 struct irix_statvfs64 {
1640 u32 f_bsize; u32 f_frsize;
1641 u64 f_blocks; u64 f_bfree; u64 f_bavail;
1642 u64 f_files; u64 f_ffree; u64 f_favail;
1643 u32 f_fsid;
1644 char f_basetype[16];
1645 u32 f_flag; u32 f_namemax;
1646 char f_fstr[32];
1647 u32 f_filler[16];
1648 };
1649
1650 asmlinkage int irix_statvfs64(char *fname, struct irix_statvfs64 *buf)
1651 {
1652 struct nameidata nd;
1653 struct kstatfs kbuf;
1654 int error, i;
1655
1656 printk("[%s:%d] Wheee.. irix_statvfs64(%s,%p)\n",
1657 current->comm, current->pid, fname, buf);
1658 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs64))) {
1659 error = -EFAULT;
1660 goto out;
1661 }
1662 error = user_path_walk(fname, &nd);
1663 if (error)
1664 goto out;
1665 error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1666 if (error)
1667 goto dput_and_out;
1668
1669 __put_user(kbuf.f_bsize, &buf->f_bsize);
1670 __put_user(kbuf.f_frsize, &buf->f_frsize);
1671 __put_user(kbuf.f_blocks, &buf->f_blocks);
1672 __put_user(kbuf.f_bfree, &buf->f_bfree);
1673 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1674 __put_user(kbuf.f_files, &buf->f_files);
1675 __put_user(kbuf.f_ffree, &buf->f_ffree);
1676 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1677 #ifdef __MIPSEB__
1678 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1679 #else
1680 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1681 #endif
1682 for(i = 0; i < 16; i++)
1683 __put_user(0, &buf->f_basetype[i]);
1684 __put_user(0, &buf->f_flag);
1685 __put_user(kbuf.f_namelen, &buf->f_namemax);
1686 for(i = 0; i < 32; i++)
1687 __put_user(0, &buf->f_fstr[i]);
1688
1689 error = 0;
1690
1691 dput_and_out:
1692 path_release(&nd);
1693 out:
1694 return error;
1695 }
1696
1697 asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs *buf)
1698 {
1699 struct kstatfs kbuf;
1700 struct file *file;
1701 int error, i;
1702
1703 printk("[%s:%d] Wheee.. irix_fstatvfs64(%d,%p)\n",
1704 current->comm, current->pid, fd, buf);
1705
1706 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1707 error = -EFAULT;
1708 goto out;
1709 }
1710 if (!(file = fget(fd))) {
1711 error = -EBADF;
1712 goto out;
1713 }
1714 error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1715 if (error)
1716 goto out_f;
1717
1718 __put_user(kbuf.f_bsize, &buf->f_bsize);
1719 __put_user(kbuf.f_frsize, &buf->f_frsize);
1720 __put_user(kbuf.f_blocks, &buf->f_blocks);
1721 __put_user(kbuf.f_bfree, &buf->f_bfree);
1722 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1723 __put_user(kbuf.f_files, &buf->f_files);
1724 __put_user(kbuf.f_ffree, &buf->f_ffree);
1725 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1726 #ifdef __MIPSEB__
1727 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1728 #else
1729 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1730 #endif
1731 for(i = 0; i < 16; i++)
1732 __put_user(0, &buf->f_basetype[i]);
1733 __put_user(0, &buf->f_flag);
1734 __put_user(kbuf.f_namelen, &buf->f_namemax);
1735 __clear_user(buf->f_fstr, sizeof(buf->f_fstr[i]));
1736
1737 out_f:
1738 fput(file);
1739 out:
1740 return error;
1741 }
1742
1743 asmlinkage int irix_getmountid(char *fname, unsigned long *midbuf)
1744 {
1745 int err = 0;
1746
1747 printk("[%s:%d] irix_getmountid(%s, %p)\n",
1748 current->comm, current->pid, fname, midbuf);
1749 if (!access_ok(VERIFY_WRITE, midbuf, (sizeof(unsigned long) * 4)))
1750 return -EFAULT;
1751
1752 /*
1753 * The idea with this system call is that when trying to determine
1754 * 'pwd' and it's a toss-up for some reason, userland can use the
1755 * fsid of the filesystem to try and make the right decision, but
1756 * we don't have this so for now. XXX
1757 */
1758 err |= __put_user(0, &midbuf[0]);
1759 err |= __put_user(0, &midbuf[1]);
1760 err |= __put_user(0, &midbuf[2]);
1761 err |= __put_user(0, &midbuf[3]);
1762
1763 return err;
1764 }
1765
1766 asmlinkage int irix_nsproc(unsigned long entry, unsigned long mask,
1767 unsigned long arg, unsigned long sp, int slen)
1768 {
1769 printk("[%s:%d] Wheee.. irix_nsproc(%08lx,%08lx,%08lx,%08lx,%d)\n",
1770 current->comm, current->pid, entry, mask, arg, sp, slen);
1771
1772 return -EINVAL;
1773 }
1774
1775 #undef DEBUG_GETDENTS
1776
1777 struct irix_dirent32 {
1778 u32 d_ino;
1779 u32 d_off;
1780 unsigned short d_reclen;
1781 char d_name[1];
1782 };
1783
1784 struct irix_dirent32_callback {
1785 struct irix_dirent32 *current_dir;
1786 struct irix_dirent32 *previous;
1787 int count;
1788 int error;
1789 };
1790
1791 #define NAME_OFFSET32(de) ((int) ((de)->d_name - (char *) (de)))
1792 #define ROUND_UP32(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
1793
1794 static int irix_filldir32(void *__buf, const char *name, int namlen,
1795 loff_t offset, ino_t ino, unsigned int d_type)
1796 {
1797 struct irix_dirent32 *dirent;
1798 struct irix_dirent32_callback *buf =
1799 (struct irix_dirent32_callback *)__buf;
1800 unsigned short reclen = ROUND_UP32(NAME_OFFSET32(dirent) + namlen + 1);
1801
1802 #ifdef DEBUG_GETDENTS
1803 printk("\nirix_filldir32[reclen<%d>namlen<%d>count<%d>]",
1804 reclen, namlen, buf->count);
1805 #endif
1806 buf->error = -EINVAL; /* only used if we fail.. */
1807 if (reclen > buf->count)
1808 return -EINVAL;
1809 dirent = buf->previous;
1810 if (dirent)
1811 __put_user(offset, &dirent->d_off);
1812 dirent = buf->current_dir;
1813 buf->previous = dirent;
1814 __put_user(ino, &dirent->d_ino);
1815 __put_user(reclen, &dirent->d_reclen);
1816 copy_to_user(dirent->d_name, name, namlen);
1817 __put_user(0, &dirent->d_name[namlen]);
1818 ((char *) dirent) += reclen;
1819 buf->current_dir = dirent;
1820 buf->count -= reclen;
1821
1822 return 0;
1823 }
1824
1825 asmlinkage int irix_ngetdents(unsigned int fd, void * dirent,
1826 unsigned int count, int *eob)
1827 {
1828 struct file *file;
1829 struct irix_dirent32 *lastdirent;
1830 struct irix_dirent32_callback buf;
1831 int error;
1832
1833 #ifdef DEBUG_GETDENTS
1834 printk("[%s:%d] ngetdents(%d, %p, %d, %p) ", current->comm,
1835 current->pid, fd, dirent, count, eob);
1836 #endif
1837 error = -EBADF;
1838 file = fget(fd);
1839 if (!file)
1840 goto out;
1841
1842 buf.current_dir = (struct irix_dirent32 *) dirent;
1843 buf.previous = NULL;
1844 buf.count = count;
1845 buf.error = 0;
1846
1847 error = vfs_readdir(file, irix_filldir32, &buf);
1848 if (error < 0)
1849 goto out_putf;
1850
1851 error = buf.error;
1852 lastdirent = buf.previous;
1853 if (lastdirent) {
1854 put_user(file->f_pos, &lastdirent->d_off);
1855 error = count - buf.count;
1856 }
1857
1858 if (put_user(0, eob) < 0) {
1859 error = -EFAULT;
1860 goto out_putf;
1861 }
1862
1863 #ifdef DEBUG_GETDENTS
1864 printk("eob=%d returning %d\n", *eob, count - buf.count);
1865 #endif
1866 error = count - buf.count;
1867
1868 out_putf:
1869 fput(file);
1870 out:
1871 return error;
1872 }
1873
1874 struct irix_dirent64 {
1875 u64 d_ino;
1876 u64 d_off;
1877 unsigned short d_reclen;
1878 char d_name[1];
1879 };
1880
1881 struct irix_dirent64_callback {
1882 struct irix_dirent64 *curr;
1883 struct irix_dirent64 *previous;
1884 int count;
1885 int error;
1886 };
1887
1888 #define NAME_OFFSET64(de) ((int) ((de)->d_name - (char *) (de)))
1889 #define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
1890
1891 static int irix_filldir64(void * __buf, const char * name, int namlen,
1892 loff_t offset, ino_t ino, unsigned int d_type)
1893 {
1894 struct irix_dirent64 *dirent;
1895 struct irix_dirent64_callback * buf =
1896 (struct irix_dirent64_callback *) __buf;
1897 unsigned short reclen = ROUND_UP64(NAME_OFFSET64(dirent) + namlen + 1);
1898
1899 buf->error = -EINVAL; /* only used if we fail.. */
1900 if (reclen > buf->count)
1901 return -EINVAL;
1902 dirent = buf->previous;
1903 if (dirent)
1904 __put_user(offset, &dirent->d_off);
1905 dirent = buf->curr;
1906 buf->previous = dirent;
1907 __put_user(ino, &dirent->d_ino);
1908 __put_user(reclen, &dirent->d_reclen);
1909 __copy_to_user(dirent->d_name, name, namlen);
1910 __put_user(0, &dirent->d_name[namlen]);
1911 ((char *) dirent) += reclen;
1912 buf->curr = dirent;
1913 buf->count -= reclen;
1914
1915 return 0;
1916 }
1917
1918 asmlinkage int irix_getdents64(int fd, void *dirent, int cnt)
1919 {
1920 struct file *file;
1921 struct irix_dirent64 *lastdirent;
1922 struct irix_dirent64_callback buf;
1923 int error;
1924
1925 #ifdef DEBUG_GETDENTS
1926 printk("[%s:%d] getdents64(%d, %p, %d) ", current->comm,
1927 current->pid, fd, dirent, cnt);
1928 #endif
1929 error = -EBADF;
1930 if (!(file = fget(fd)))
1931 goto out;
1932
1933 error = -EFAULT;
1934 if (!access_ok(VERIFY_WRITE, dirent, cnt))
1935 goto out_f;
1936
1937 error = -EINVAL;
1938 if (cnt < (sizeof(struct irix_dirent64) + 255))
1939 goto out_f;
1940
1941 buf.curr = (struct irix_dirent64 *) dirent;
1942 buf.previous = NULL;
1943 buf.count = cnt;
1944 buf.error = 0;
1945 error = vfs_readdir(file, irix_filldir64, &buf);
1946 if (error < 0)
1947 goto out_f;
1948 lastdirent = buf.previous;
1949 if (!lastdirent) {
1950 error = buf.error;
1951 goto out_f;
1952 }
1953 lastdirent->d_off = (u64) file->f_pos;
1954 #ifdef DEBUG_GETDENTS
1955 printk("returning %d\n", cnt - buf.count);
1956 #endif
1957 error = cnt - buf.count;
1958
1959 out_f:
1960 fput(file);
1961 out:
1962 return error;
1963 }
1964
1965 asmlinkage int irix_ngetdents64(int fd, void *dirent, int cnt, int *eob)
1966 {
1967 struct file *file;
1968 struct irix_dirent64 *lastdirent;
1969 struct irix_dirent64_callback buf;
1970 int error;
1971
1972 #ifdef DEBUG_GETDENTS
1973 printk("[%s:%d] ngetdents64(%d, %p, %d) ", current->comm,
1974 current->pid, fd, dirent, cnt);
1975 #endif
1976 error = -EBADF;
1977 if (!(file = fget(fd)))
1978 goto out;
1979
1980 error = -EFAULT;
1981 if (!access_ok(VERIFY_WRITE, dirent, cnt) ||
1982 !access_ok(VERIFY_WRITE, eob, sizeof(*eob)))
1983 goto out_f;
1984
1985 error = -EINVAL;
1986 if (cnt < (sizeof(struct irix_dirent64) + 255))
1987 goto out_f;
1988
1989 *eob = 0;
1990 buf.curr = (struct irix_dirent64 *) dirent;
1991 buf.previous = NULL;
1992 buf.count = cnt;
1993 buf.error = 0;
1994 error = vfs_readdir(file, irix_filldir64, &buf);
1995 if (error < 0)
1996 goto out_f;
1997 lastdirent = buf.previous;
1998 if (!lastdirent) {
1999 error = buf.error;
2000 goto out_f;
2001 }
2002 lastdirent->d_off = (u64) file->f_pos;
2003 #ifdef DEBUG_GETDENTS
2004 printk("eob=%d returning %d\n", *eob, cnt - buf.count);
2005 #endif
2006 error = cnt - buf.count;
2007
2008 out_f:
2009 fput(file);
2010 out:
2011 return error;
2012 }
2013
2014 asmlinkage int irix_uadmin(unsigned long op, unsigned long func, unsigned long arg)
2015 {
2016 int retval;
2017
2018 switch (op) {
2019 case 1:
2020 /* Reboot */
2021 printk("[%s:%d] irix_uadmin: Wants to reboot...\n",
2022 current->comm, current->pid);
2023 retval = -EINVAL;
2024 goto out;
2025
2026 case 2:
2027 /* Shutdown */
2028 printk("[%s:%d] irix_uadmin: Wants to shutdown...\n",
2029 current->comm, current->pid);
2030 retval = -EINVAL;
2031 goto out;
2032
2033 case 4:
2034 /* Remount-root */
2035 printk("[%s:%d] irix_uadmin: Wants to remount root...\n",
2036 current->comm, current->pid);
2037 retval = -EINVAL;
2038 goto out;
2039
2040 case 8:
2041 /* Kill all tasks. */
2042 printk("[%s:%d] irix_uadmin: Wants to kill all tasks...\n",
2043 current->comm, current->pid);
2044 retval = -EINVAL;
2045 goto out;
2046
2047 case 256:
2048 /* Set magic mushrooms... */
2049 printk("[%s:%d] irix_uadmin: Wants to set magic mushroom[%d]...\n",
2050 current->comm, current->pid, (int) func);
2051 retval = -EINVAL;
2052 goto out;
2053
2054 default:
2055 printk("[%s:%d] irix_uadmin: Unknown operation [%d]...\n",
2056 current->comm, current->pid, (int) op);
2057 retval = -EINVAL;
2058 goto out;
2059 };
2060
2061 out:
2062 return retval;
2063 }
2064
2065 asmlinkage int irix_utssys(char *inbuf, int arg, int type, char *outbuf)
2066 {
2067 int retval;
2068
2069 switch(type) {
2070 case 0:
2071 /* uname() */
2072 retval = irix_uname((struct iuname *)inbuf);
2073 goto out;
2074
2075 case 2:
2076 /* ustat() */
2077 printk("[%s:%d] irix_utssys: Wants to do ustat()\n",
2078 current->comm, current->pid);
2079 retval = -EINVAL;
2080 goto out;
2081
2082 case 3:
2083 /* fusers() */
2084 printk("[%s:%d] irix_utssys: Wants to do fusers()\n",
2085 current->comm, current->pid);
2086 retval = -EINVAL;
2087 goto out;
2088
2089 default:
2090 printk("[%s:%d] irix_utssys: Wants to do unknown type[%d]\n",
2091 current->comm, current->pid, (int) type);
2092 retval = -EINVAL;
2093 goto out;
2094 }
2095
2096 out:
2097 return retval;
2098 }
2099
2100 #undef DEBUG_FCNTL
2101
2102 #define IRIX_F_ALLOCSP 10
2103
2104 asmlinkage int irix_fcntl(int fd, int cmd, int arg)
2105 {
2106 int retval;
2107
2108 #ifdef DEBUG_FCNTL
2109 printk("[%s:%d] irix_fcntl(%d, %d, %d) ", current->comm,
2110 current->pid, fd, cmd, arg);
2111 #endif
2112 if (cmd == IRIX_F_ALLOCSP){
2113 return 0;
2114 }
2115 retval = sys_fcntl(fd, cmd, arg);
2116 #ifdef DEBUG_FCNTL
2117 printk("%d\n", retval);
2118 #endif
2119 return retval;
2120 }
2121
2122 asmlinkage int irix_ulimit(int cmd, int arg)
2123 {
2124 int retval;
2125
2126 switch(cmd) {
2127 case 1:
2128 printk("[%s:%d] irix_ulimit: Wants to get file size limit.\n",
2129 current->comm, current->pid);
2130 retval = -EINVAL;
2131 goto out;
2132
2133 case 2:
2134 printk("[%s:%d] irix_ulimit: Wants to set file size limit.\n",
2135 current->comm, current->pid);
2136 retval = -EINVAL;
2137 goto out;
2138
2139 case 3:
2140 printk("[%s:%d] irix_ulimit: Wants to get brk limit.\n",
2141 current->comm, current->pid);
2142 retval = -EINVAL;
2143 goto out;
2144
2145 case 4:
2146 #if 0
2147 printk("[%s:%d] irix_ulimit: Wants to get fd limit.\n",
2148 current->comm, current->pid);
2149 retval = -EINVAL;
2150 goto out;
2151 #endif
2152 retval = current->signal->rlim[RLIMIT_NOFILE].rlim_cur;
2153 goto out;
2154
2155 case 5:
2156 printk("[%s:%d] irix_ulimit: Wants to get txt offset.\n",
2157 current->comm, current->pid);
2158 retval = -EINVAL;
2159 goto out;
2160
2161 default:
2162 printk("[%s:%d] irix_ulimit: Unknown command [%d].\n",
2163 current->comm, current->pid, cmd);
2164 retval = -EINVAL;
2165 goto out;
2166 }
2167 out:
2168 return retval;
2169 }
2170
2171 asmlinkage int irix_unimp(struct pt_regs *regs)
2172 {
2173 printk("irix_unimp [%s:%d] v0=%d v1=%d a0=%08lx a1=%08lx a2=%08lx "
2174 "a3=%08lx\n", current->comm, current->pid,
2175 (int) regs->regs[2], (int) regs->regs[3],
2176 regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]);
2177
2178 return -ENOSYS;
2179 }
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