?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Ok. I didn't make 2.4.0 in 2000. Tough. I tried, but we had some
[davej-history.git] / arch / sparc64 / kernel / sys_sunos32.c
bloba9d143759e013f4e131b2cd35fdc5b0b5211db00
1 /* $Id: sys_sunos32.c,v 1.55 2000/11/18 02:10:59 davem Exp $
2 * sys_sunos32.c: SunOS binary compatability layer on sparc64.
3 *
4 * Copyright (C) 1995, 1996, 1997 David S. Miller (davem@caip.rutgers.edu)
5 * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx)
6 *
7 * Based upon preliminary work which is:
8 *
9 * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu)
10 */
11
12 #include <linux/kernel.h>
13 #include <linux/sched.h>
14 #include <linux/types.h>
15 #include <linux/mman.h>
16 #include <linux/mm.h>
17 #include <linux/swap.h>
18 #include <linux/fs.h>
19 #include <linux/file.h>
20 #include <linux/resource.h>
21 #include <linux/ipc.h>
22 #include <linux/shm.h>
23 #include <linux/msg.h>
24 #include <linux/sem.h>
25 #include <linux/signal.h>
26 #include <linux/uio.h>
27 #include <linux/utsname.h>
28 #include <linux/major.h>
29 #include <linux/stat.h>
30 #include <linux/malloc.h>
31 #include <linux/pagemap.h>
32 #include <linux/errno.h>
33 #include <linux/smp.h>
34 #include <linux/smp_lock.h>
35
36 #include <asm/uaccess.h>
37 #include <asm/page.h>
38 #include <asm/pgtable.h>
39 #include <asm/pconf.h>
40 #include <asm/idprom.h> /* for gethostid() */
41 #include <asm/unistd.h>
42 #include <asm/system.h>
43
44 /* For the nfs mount emulation */
45 #include <linux/socket.h>
46 #include <linux/in.h>
47 #include <linux/nfs.h>
48 #include <linux/nfs2.h>
49 #include <linux/nfs_mount.h>
50
51 /* for sunos_select */
52 #include <linux/time.h>
53 #include <linux/personality.h>
54
55 /* Use this to get at 32-bit user passed pointers. */
56 #define A(__x) \
57 ({ unsigned long __ret; \
58 __asm__ ("srl %0, 0, %0" \
59 : "=r" (__ret) \
60 : "0" (__x)); \
61 __ret; \
62 })
63
64 #define SUNOS_NR_OPEN 256
65
66 asmlinkage u32 sunos_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u32 off)
67 {
68 struct file *file = NULL;
69 unsigned long retval, ret_type;
70
71 if(flags & MAP_NORESERVE) {
72 static int cnt;
73 if (cnt++ < 10)
74 printk("%s: unimplemented SunOS MAP_NORESERVE mmap() flag\n",
75 current->comm);
76 flags &= ~MAP_NORESERVE;
77 }
78 retval = -EBADF;
79 if(!(flags & MAP_ANONYMOUS)) {
80 struct inode * inode;
81 if(fd >= SUNOS_NR_OPEN)
82 goto out;
83 file = fget(fd);
84 if (!file)
85 goto out;
86 inode = file->f_dentry->d_inode;
87 if(MAJOR(inode->i_rdev)==MEM_MAJOR && MINOR(inode->i_rdev)==5) {
88 flags |= MAP_ANONYMOUS;
89 fput(file);
90 file = NULL;
91 }
92 }
93
94 retval = -EINVAL;
95 if(!(flags & MAP_FIXED))
96 addr = 0;
97 else if (len > 0xf0000000 || addr > 0xf0000000 - len)
98 goto out_putf;
99 ret_type = flags & _MAP_NEW;
100 flags &= ~_MAP_NEW;
101
102 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
103 down(&current->mm->mmap_sem);
104 retval = do_mmap(file,
105 (unsigned long) addr, (unsigned long) len,
106 (unsigned long) prot, (unsigned long) flags,
107 (unsigned long) off);
108 up(&current->mm->mmap_sem);
109 if(!ret_type)
110 retval = ((retval < 0xf0000000) ? 0 : retval);
111 out_putf:
112 if (file)
113 fput(file);
114 out:
115 return (u32) retval;
116 }
117
118 asmlinkage int sunos_mctl(u32 addr, u32 len, int function, u32 arg)
119 {
120 return 0;
121 }
122
123 asmlinkage int sunos_brk(u32 baddr)
124 {
125 int freepages, retval = -ENOMEM;
126 unsigned long rlim;
127 unsigned long newbrk, oldbrk, brk = (unsigned long) baddr;
128
129 down(&current->mm->mmap_sem);
130 if (brk < current->mm->end_code)
131 goto out;
132 newbrk = PAGE_ALIGN(brk);
133 oldbrk = PAGE_ALIGN(current->mm->brk);
134 retval = 0;
135 if (oldbrk == newbrk) {
136 current->mm->brk = brk;
137 goto out;
138 }
139 /* Always allow shrinking brk. */
140 if (brk <= current->mm->brk) {
141 current->mm->brk = brk;
142 do_munmap(current->mm, newbrk, oldbrk-newbrk);
143 goto out;
144 }
145 /* Check against rlimit and stack.. */
146 retval = -ENOMEM;
147 rlim = current->rlim[RLIMIT_DATA].rlim_cur;
148 if (rlim >= RLIM_INFINITY)
149 rlim = ~0;
150 if (brk - current->mm->end_code > rlim)
151 goto out;
152 /* Check against existing mmap mappings. */
153 if (find_vma_intersection(current->mm, oldbrk, newbrk+PAGE_SIZE))
154 goto out;
155 /* stupid algorithm to decide if we have enough memory: while
156 * simple, it hopefully works in most obvious cases.. Easy to
157 * fool it, but this should catch most mistakes.
158 */
159 freepages = atomic_read(&buffermem_pages) >> PAGE_SHIFT;
160 freepages += atomic_read(&page_cache_size);
161 freepages >>= 1;
162 freepages += nr_free_pages();
163 freepages += nr_swap_pages;
164 freepages -= num_physpages >> 4;
165 freepages -= (newbrk-oldbrk) >> PAGE_SHIFT;
166 if (freepages < 0)
167 goto out;
168 /* Ok, we have probably got enough memory - let it rip. */
169 current->mm->brk = brk;
170 do_brk(oldbrk, newbrk-oldbrk);
171 retval = 0;
172 out:
173 up(&current->mm->mmap_sem);
174 return retval;
175 }
176
177 asmlinkage u32 sunos_sbrk(int increment)
178 {
179 int error, oldbrk;
180
181 /* This should do it hopefully... */
182 oldbrk = (int)current->mm->brk;
183 error = sunos_brk(((int) current->mm->brk) + increment);
184 if(!error)
185 error = oldbrk;
186 return error;
187 }
188
189 asmlinkage u32 sunos_sstk(int increment)
190 {
191 printk("%s: Call to sunos_sstk(increment<%d>) is unsupported\n",
192 current->comm, increment);
193
194 return (u32)-1;
195 }
196
197 /* Give hints to the kernel as to what paging strategy to use...
198 * Completely bogus, don't remind me.
199 */
200 #define VA_NORMAL 0 /* Normal vm usage expected */
201 #define VA_ABNORMAL 1 /* Abnormal/random vm usage probable */
202 #define VA_SEQUENTIAL 2 /* Accesses will be of a sequential nature */
203 #define VA_INVALIDATE 3 /* Page table entries should be flushed ??? */
204 static char *vstrings[] = {
205 "VA_NORMAL",
206 "VA_ABNORMAL",
207 "VA_SEQUENTIAL",
208 "VA_INVALIDATE",
209 };
210
211 asmlinkage void sunos_vadvise(u32 strategy)
212 {
213 static int count = 0;
214
215 /* I wanna see who uses this... */
216 if (count++ < 5)
217 printk("%s: Advises us to use %s paging strategy\n",
218 current->comm,
219 strategy <= 3 ? vstrings[strategy] : "BOGUS");
220 }
221
222 /* This just wants the soft limit (ie. rlim_cur element) of the RLIMIT_NOFILE
223 * resource limit and is for backwards compatibility with older sunos
224 * revs.
225 */
226 asmlinkage int sunos_getdtablesize(void)
227 {
228 return SUNOS_NR_OPEN;
229 }
230
231
232 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
233
234 asmlinkage u32 sunos_sigblock(u32 blk_mask)
235 {
236 u32 old;
237
238 spin_lock_irq(&current->sigmask_lock);
239 old = (u32) current->blocked.sig[0];
240 current->blocked.sig[0] |= (blk_mask & _BLOCKABLE);
241 recalc_sigpending(current);
242 spin_unlock_irq(&current->sigmask_lock);
243 return old;
244 }
245
246 asmlinkage u32 sunos_sigsetmask(u32 newmask)
247 {
248 u32 retval;
249
250 spin_lock_irq(&current->sigmask_lock);
251 retval = (u32) current->blocked.sig[0];
252 current->blocked.sig[0] = (newmask & _BLOCKABLE);
253 recalc_sigpending(current);
254 spin_unlock_irq(&current->sigmask_lock);
255 return retval;
256 }
257
258 /* SunOS getdents is very similar to the newer Linux (iBCS2 compliant) */
259 /* getdents system call, the format of the structure just has a different */
260 /* layout (d_off+d_ino instead of d_ino+d_off) */
261 struct sunos_dirent {
262 s32 d_off;
263 u32 d_ino;
264 u16 d_reclen;
265 u16 d_namlen;
266 char d_name[1];
267 };
268
269 struct sunos_dirent_callback {
270 struct sunos_dirent *curr;
271 struct sunos_dirent *previous;
272 int count;
273 int error;
274 };
275
276 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
277 #define ROUND_UP(x) (((x)+sizeof(s32)-1) & ~(sizeof(s32)-1))
278
279 static int sunos_filldir(void * __buf, const char * name, int namlen,
280 off_t offset, ino_t ino, unsigned int d_type)
281 {
282 struct sunos_dirent * dirent;
283 struct sunos_dirent_callback * buf = (struct sunos_dirent_callback *) __buf;
284 int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
285
286 buf->error = -EINVAL; /* only used if we fail.. */
287 if (reclen > buf->count)
288 return -EINVAL;
289 dirent = buf->previous;
290 if (dirent)
291 put_user(offset, &dirent->d_off);
292 dirent = buf->curr;
293 buf->previous = dirent;
294 put_user(ino, &dirent->d_ino);
295 put_user(namlen, &dirent->d_namlen);
296 put_user(reclen, &dirent->d_reclen);
297 copy_to_user(dirent->d_name, name, namlen);
298 put_user(0, dirent->d_name + namlen);
299 ((char *) dirent) += reclen;
300 buf->curr = dirent;
301 buf->count -= reclen;
302 return 0;
303 }
304
305 asmlinkage int sunos_getdents(unsigned int fd, u32 u_dirent, int cnt)
306 {
307 struct file * file;
308 struct sunos_dirent * lastdirent;
309 struct sunos_dirent_callback buf;
310 int error = -EBADF;
311 void *dirent = (void *)A(u_dirent);
312
313 if(fd >= SUNOS_NR_OPEN)
314 goto out;
315
316 file = fget(fd);
317 if(!file)
318 goto out;
319
320 error = -EINVAL;
321 if(cnt < (sizeof(struct sunos_dirent) + 255))
322 goto out_putf;
323
324 buf.curr = (struct sunos_dirent *) dirent;
325 buf.previous = NULL;
326 buf.count = cnt;
327 buf.error = 0;
328
329 error = vfs_readdir(file, sunos_filldir, &buf);
330 if (error < 0)
331 goto out_putf;
332
333 lastdirent = buf.previous;
334 error = buf.error;
335 if (lastdirent) {
336 put_user(file->f_pos, &lastdirent->d_off);
337 error = cnt - buf.count;
338 }
339
340 out_putf:
341 fput(file);
342 out:
343 return error;
344 }
345
346 /* Old sunos getdirentries, severely broken compatibility stuff here. */
347 struct sunos_direntry {
348 u32 d_ino;
349 u16 d_reclen;
350 u16 d_namlen;
351 char d_name[1];
352 };
353
354 struct sunos_direntry_callback {
355 struct sunos_direntry *curr;
356 struct sunos_direntry *previous;
357 int count;
358 int error;
359 };
360
361 static int sunos_filldirentry(void * __buf, const char * name, int namlen,
362 off_t offset, ino_t ino, unsigned int d_type)
363 {
364 struct sunos_direntry * dirent;
365 struct sunos_direntry_callback * buf = (struct sunos_direntry_callback *) __buf;
366 int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
367
368 buf->error = -EINVAL; /* only used if we fail.. */
369 if (reclen > buf->count)
370 return -EINVAL;
371 dirent = buf->previous;
372 dirent = buf->curr;
373 buf->previous = dirent;
374 put_user(ino, &dirent->d_ino);
375 put_user(namlen, &dirent->d_namlen);
376 put_user(reclen, &dirent->d_reclen);
377 copy_to_user(dirent->d_name, name, namlen);
378 put_user(0, dirent->d_name + namlen);
379 ((char *) dirent) += reclen;
380 buf->curr = dirent;
381 buf->count -= reclen;
382 return 0;
383 }
384
385 asmlinkage int sunos_getdirentries(unsigned int fd, u32 u_dirent,
386 int cnt, u32 u_basep)
387 {
388 void *dirent = (void *) A(u_dirent);
389 unsigned int *basep = (unsigned int *)A(u_basep);
390 struct file * file;
391 struct sunos_direntry * lastdirent;
392 int error = -EBADF;
393 struct sunos_direntry_callback buf;
394
395 if(fd >= SUNOS_NR_OPEN)
396 goto out;
397
398 file = fget(fd);
399 if(!file)
400 goto out;
401
402 error = -EINVAL;
403 if(cnt < (sizeof(struct sunos_direntry) + 255))
404 goto out_putf;
405
406 buf.curr = (struct sunos_direntry *) dirent;
407 buf.previous = NULL;
408 buf.count = cnt;
409 buf.error = 0;
410
411 error = vfs_readdir(file, sunos_filldirentry, &buf);
412 if (error < 0)
413 goto out_putf;
414
415 lastdirent = buf.previous;
416 error = buf.error;
417 if (lastdirent) {
418 put_user(file->f_pos, basep);
419 error = cnt - buf.count;
420 }
421
422 out_putf:
423 fput(file);
424 out:
425 return error;
426 }
427
428 struct sunos_utsname {
429 char sname[9];
430 char nname[9];
431 char nnext[56];
432 char rel[9];
433 char ver[9];
434 char mach[9];
435 };
436
437 asmlinkage int sunos_uname(struct sunos_utsname *name)
438 {
439 int ret;
440
441 down_read(&uts_sem);
442 ret = copy_to_user(&name->sname[0], &system_utsname.sysname[0], sizeof(name->sname) - 1);
443 ret |= copy_to_user(&name->nname[0], &system_utsname.nodename[0], sizeof(name->nname) - 1);
444 ret |= put_user('\0', &name->nname[8]);
445 ret |= copy_to_user(&name->rel[0], &system_utsname.release[0], sizeof(name->rel) - 1);
446 ret |= copy_to_user(&name->ver[0], &system_utsname.version[0], sizeof(name->ver) - 1);
447 ret |= copy_to_user(&name->mach[0], &system_utsname.machine[0], sizeof(name->mach) - 1);
448 up_read(&uts_sem);
449 return ret;
450 }
451
452 asmlinkage int sunos_nosys(void)
453 {
454 struct pt_regs *regs;
455 siginfo_t info;
456 static int cnt;
457
458 regs = current->thread.kregs;
459 info.si_signo = SIGSYS;
460 info.si_errno = 0;
461 info.si_code = __SI_FAULT|0x100;
462 info.si_addr = (void *)regs->tpc;
463 info.si_trapno = regs->u_regs[UREG_G1];
464 send_sig_info(SIGSYS, &info, current);
465 if (cnt++ < 4) {
466 printk("Process makes ni_syscall number %d, register dump:\n",
467 (int) regs->u_regs[UREG_G1]);
468 show_regs(regs);
469 }
470 return -ENOSYS;
471 }
472
473 /* This is not a real and complete implementation yet, just to keep
474 * the easy SunOS binaries happy.
475 */
476 asmlinkage int sunos_fpathconf(int fd, int name)
477 {
478 int ret;
479
480 switch(name) {
481 case _PCONF_LINK:
482 ret = LINK_MAX;
483 break;
484 case _PCONF_CANON:
485 ret = MAX_CANON;
486 break;
487 case _PCONF_INPUT:
488 ret = MAX_INPUT;
489 break;
490 case _PCONF_NAME:
491 ret = NAME_MAX;
492 break;
493 case _PCONF_PATH:
494 ret = PATH_MAX;
495 break;
496 case _PCONF_PIPE:
497 ret = PIPE_BUF;
498 break;
499 case _PCONF_CHRESTRICT: /* XXX Investigate XXX */
500 ret = 1;
501 break;
502 case _PCONF_NOTRUNC: /* XXX Investigate XXX */
503 case _PCONF_VDISABLE:
504 ret = 0;
505 break;
506 default:
507 ret = -EINVAL;
508 break;
509 }
510 return ret;
511 }
512
513 asmlinkage int sunos_pathconf(u32 u_path, int name)
514 {
515 int ret;
516
517 ret = sunos_fpathconf(0, name); /* XXX cheese XXX */
518 return ret;
519 }
520
521 /* SunOS mount system call emulation */
522 extern asmlinkage int
523 sys32_select(int n, u32 inp, u32 outp, u32 exp, u32 tvp);
524
525 struct timeval32
526 {
527 int tv_sec, tv_usec;
528 };
529
530 asmlinkage int sunos_select(int width, u32 inp, u32 outp, u32 exp, u32 tvp_x)
531 {
532 int ret;
533
534 /* SunOS binaries expect that select won't change the tvp contents */
535 ret = sys32_select (width, inp, outp, exp, tvp_x);
536 if (ret == -EINTR && tvp_x) {
537 struct timeval32 *tvp = (struct timeval32 *)A(tvp_x);
538 time_t sec, usec;
539
540 __get_user(sec, &tvp->tv_sec);
541 __get_user(usec, &tvp->tv_usec);
542 if (sec == 0 && usec == 0)
543 ret = 0;
544 }
545 return ret;
546 }
547
548 asmlinkage void sunos_nop(void)
549 {
550 return;
551 }
552
553 /* XXXXXXXXXX SunOS mount/umount. XXXXXXXXXXX */
554 #define SMNT_RDONLY 1
555 #define SMNT_NOSUID 2
556 #define SMNT_NEWTYPE 4
557 #define SMNT_GRPID 8
558 #define SMNT_REMOUNT 16
559 #define SMNT_NOSUB 32
560 #define SMNT_MULTI 64
561 #define SMNT_SYS5 128
562
563 struct sunos_fh_t {
564 char fh_data [NFS_FHSIZE];
565 };
566
567 struct sunos_nfs_mount_args {
568 struct sockaddr_in *addr; /* file server address */
569 struct nfs_fh *fh; /* File handle to be mounted */
570 int flags; /* flags */
571 int wsize; /* write size in bytes */
572 int rsize; /* read size in bytes */
573 int timeo; /* initial timeout in .1 secs */
574 int retrans; /* times to retry send */
575 char *hostname; /* server's hostname */
576 int acregmin; /* attr cache file min secs */
577 int acregmax; /* attr cache file max secs */
578 int acdirmin; /* attr cache dir min secs */
579 int acdirmax; /* attr cache dir max secs */
580 char *netname; /* server's netname */
581 };
582
583 extern dev_t get_unnamed_dev(void);
584 extern void put_unnamed_dev(dev_t);
585 extern asmlinkage int sys_mount(char *, char *, char *, unsigned long, void *);
586 extern asmlinkage int sys_connect(int fd, struct sockaddr *uservaddr, int addrlen);
587 extern asmlinkage int sys_socket(int family, int type, int protocol);
588 extern asmlinkage int sys_bind(int fd, struct sockaddr *umyaddr, int addrlen);
589
590
591 /* Bind the socket on a local reserved port and connect it to the
592 * remote server. This on Linux/i386 is done by the mount program,
593 * not by the kernel.
594 */
595 /* XXXXXXXXXXXXXXXXXXXX */
596 static int
597 sunos_nfs_get_server_fd (int fd, struct sockaddr_in *addr)
598 {
599 struct sockaddr_in local;
600 struct sockaddr_in server;
601 int try_port;
602 int ret;
603 struct socket *socket;
604 struct inode *inode;
605 struct file *file;
606
607 file = fget(fd);
608 if(!file)
609 return 0;
610
611 inode = file->f_dentry->d_inode;
612
613 socket = &inode->u.socket_i;
614 local.sin_family = AF_INET;
615 local.sin_addr.s_addr = INADDR_ANY;
616
617 /* IPPORT_RESERVED = 1024, can't find the definition in the kernel */
618 try_port = 1024;
619 do {
620 local.sin_port = htons (--try_port);
621 ret = socket->ops->bind(socket, (struct sockaddr*)&local,
622 sizeof(local));
623 } while (ret && try_port > (1024 / 2));
624
625 if (ret) {
626 fput(file);
627 return 0;
628 }
629
630 server.sin_family = AF_INET;
631 server.sin_addr = addr->sin_addr;
632 server.sin_port = NFS_PORT;
633
634 /* Call sys_connect */
635 ret = socket->ops->connect (socket, (struct sockaddr *) &server,
636 sizeof (server), file->f_flags);
637 fput(file);
638 if (ret < 0)
639 return 0;
640 return 1;
641 }
642
643 /* XXXXXXXXXXXXXXXXXXXX */
644 static int get_default (int value, int def_value)
645 {
646 if (value)
647 return value;
648 else
649 return def_value;
650 }
651
652 /* XXXXXXXXXXXXXXXXXXXX */
653 static int sunos_nfs_mount(char *dir_name, int linux_flags, void *data)
654 {
655 int server_fd;
656 char *the_name;
657 struct nfs_mount_data linux_nfs_mount;
658 struct sunos_nfs_mount_args sunos_mount;
659
660 /* Ok, here comes the fun part: Linux's nfs mount needs a
661 * socket connection to the server, but SunOS mount does not
662 * require this, so we use the information on the destination
663 * address to create a socket and bind it to a reserved
664 * port on this system
665 */
666 if (copy_from_user(&sunos_mount, data, sizeof(sunos_mount)))
667 return -EFAULT;
668
669 server_fd = sys_socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
670 if (server_fd < 0)
671 return -ENXIO;
672
673 if (copy_from_user(&linux_nfs_mount.addr,sunos_mount.addr,
674 sizeof(*sunos_mount.addr)) ||
675 copy_from_user(&linux_nfs_mount.root,sunos_mount.fh,
676 sizeof(*sunos_mount.fh))) {
677 sys_close (server_fd);
678 return -EFAULT;
679 }
680
681 if (!sunos_nfs_get_server_fd (server_fd, &linux_nfs_mount.addr)){
682 sys_close (server_fd);
683 return -ENXIO;
684 }
685
686 /* Now, bind it to a locally reserved port */
687 linux_nfs_mount.version = NFS_MOUNT_VERSION;
688 linux_nfs_mount.flags = sunos_mount.flags;
689 linux_nfs_mount.fd = server_fd;
690
691 linux_nfs_mount.rsize = get_default (sunos_mount.rsize, 8192);
692 linux_nfs_mount.wsize = get_default (sunos_mount.wsize, 8192);
693 linux_nfs_mount.timeo = get_default (sunos_mount.timeo, 10);
694 linux_nfs_mount.retrans = sunos_mount.retrans;
695
696 linux_nfs_mount.acregmin = sunos_mount.acregmin;
697 linux_nfs_mount.acregmax = sunos_mount.acregmax;
698 linux_nfs_mount.acdirmin = sunos_mount.acdirmin;
699 linux_nfs_mount.acdirmax = sunos_mount.acdirmax;
700
701 the_name = getname(sunos_mount.hostname);
702 if(IS_ERR(the_name))
703 return PTR_ERR(the_name);
704
705 strncpy (linux_nfs_mount.hostname, the_name, 254);
706 linux_nfs_mount.hostname [255] = 0;
707 putname (the_name);
708
709 return do_mount ("", dir_name, "nfs", linux_flags, &linux_nfs_mount);
710 }
711
712 /* XXXXXXXXXXXXXXXXXXXX */
713 asmlinkage int
714 sunos_mount(char *type, char *dir, int flags, void *data)
715 {
716 int linux_flags = MS_MGC_MSK; /* new semantics */
717 int ret = -EINVAL;
718 char *dev_fname = 0;
719 char *dir_page, *type_page;
720
721 if (!capable (CAP_SYS_ADMIN))
722 return -EPERM;
723
724 /* We don't handle the integer fs type */
725 if ((flags & SMNT_NEWTYPE) == 0)
726 goto out;
727
728 /* Do not allow for those flags we don't support */
729 if (flags & (SMNT_GRPID|SMNT_NOSUB|SMNT_MULTI|SMNT_SYS5))
730 goto out;
731
732 if(flags & SMNT_REMOUNT)
733 linux_flags |= MS_REMOUNT;
734 if(flags & SMNT_RDONLY)
735 linux_flags |= MS_RDONLY;
736 if(flags & SMNT_NOSUID)
737 linux_flags |= MS_NOSUID;
738
739 dir_page = getname(dir);
740 ret = PTR_ERR(dir_page);
741 if (IS_ERR(dir_page))
742 goto out;
743
744 type_page = getname(type);
745 ret = PTR_ERR(type_page);
746 if (IS_ERR(type_page))
747 goto out1;
748
749 if(strcmp(type_page, "ext2") == 0) {
750 dev_fname = getname(data);
751 } else if(strcmp(type_page, "iso9660") == 0) {
752 dev_fname = getname(data);
753 } else if(strcmp(type_page, "minix") == 0) {
754 dev_fname = getname(data);
755 } else if(strcmp(type_page, "nfs") == 0) {
756 ret = sunos_nfs_mount (dir_page, flags, data);
757 goto out2;
758 } else if(strcmp(type_page, "ufs") == 0) {
759 printk("Warning: UFS filesystem mounts unsupported.\n");
760 ret = -ENODEV;
761 goto out2;
762 } else if(strcmp(type_page, "proc")) {
763 ret = -ENODEV;
764 goto out2;
765 }
766 ret = PTR_ERR(dev_fname);
767 if (IS_ERR(dev_fname))
768 goto out2;
769 lock_kernel();
770 ret = do_mount(dev_fname, dir_page, type_page, linux_flags, NULL);
771 unlock_kernel();
772 if (dev_fname)
773 putname(dev_fname);
774 out2:
775 putname(type_page);
776 out1:
777 putname(dir_page);
778 out:
779 return ret;
780 }
781
782 extern asmlinkage int sys_setsid(void);
783 extern asmlinkage int sys_setpgid(pid_t, pid_t);
784
785 asmlinkage int sunos_setpgrp(pid_t pid, pid_t pgid)
786 {
787 int ret;
788
789 /* So stupid... */
790 if((!pid || pid == current->pid) &&
791 !pgid) {
792 sys_setsid();
793 ret = 0;
794 } else {
795 ret = sys_setpgid(pid, pgid);
796 }
797 return ret;
798 }
799
800 /* So stupid... */
801 extern asmlinkage int sys32_wait4(__kernel_pid_t32 pid,
802 u32 stat_addr, int options, u32 ru);
803
804 asmlinkage int sunos_wait4(__kernel_pid_t32 pid, u32 stat_addr, int options, u32 ru)
805 {
806 int ret;
807
808 ret = sys32_wait4((pid ? pid : ((__kernel_pid_t32)-1)),
809 stat_addr, options, ru);
810 return ret;
811 }
812
813 extern int kill_pg(int, int, int);
814 asmlinkage int sunos_killpg(int pgrp, int sig)
815 {
816 return kill_pg(pgrp, sig, 0);
817 }
818
819 asmlinkage int sunos_audit(void)
820 {
821 printk ("sys_audit\n");
822 return -1;
823 }
824
825 extern asmlinkage u32 sunos_gethostid(void)
826 {
827 u32 ret;
828
829 ret = (((u32)idprom->id_machtype << 24) | ((u32)idprom->id_sernum));
830
831 return ret;
832 }
833
834 /* sysconf options, for SunOS compatibility */
835 #define _SC_ARG_MAX 1
836 #define _SC_CHILD_MAX 2
837 #define _SC_CLK_TCK 3
838 #define _SC_NGROUPS_MAX 4
839 #define _SC_OPEN_MAX 5
840 #define _SC_JOB_CONTROL 6
841 #define _SC_SAVED_IDS 7
842 #define _SC_VERSION 8
843
844 extern asmlinkage s32 sunos_sysconf (int name)
845 {
846 s32 ret;
847
848 switch (name){
849 case _SC_ARG_MAX:
850 ret = ARG_MAX;
851 break;
852 case _SC_CHILD_MAX:
853 ret = CHILD_MAX;
854 break;
855 case _SC_CLK_TCK:
856 ret = HZ;
857 break;
858 case _SC_NGROUPS_MAX:
859 ret = NGROUPS_MAX;
860 break;
861 case _SC_OPEN_MAX:
862 ret = OPEN_MAX;
863 break;
864 case _SC_JOB_CONTROL:
865 ret = 1; /* yes, we do support job control */
866 break;
867 case _SC_SAVED_IDS:
868 ret = 1; /* yes, we do support saved uids */
869 break;
870 case _SC_VERSION:
871 /* mhm, POSIX_VERSION is in /usr/include/unistd.h
872 * should it go on /usr/include/linux?
873 */
874 ret = 199009;
875 break;
876 default:
877 ret = -1;
878 break;
879 };
880 return ret;
881 }
882
883 asmlinkage int sunos_semsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 ptr)
884 {
885 union semun arg4;
886 int ret;
887
888 switch (op) {
889 case 0:
890 /* Most arguments match on a 1:1 basis but cmd doesn't */
891 switch(arg3) {
892 case 4:
893 arg3=GETPID; break;
894 case 5:
895 arg3=GETVAL; break;
896 case 6:
897 arg3=GETALL; break;
898 case 3:
899 arg3=GETNCNT; break;
900 case 7:
901 arg3=GETZCNT; break;
902 case 8:
903 arg3=SETVAL; break;
904 case 9:
905 arg3=SETALL; break;
906 }
907 /* sys_semctl(): */
908 arg4.__pad=(void *)A(ptr); /* value to modify semaphore to */
909 ret = sys_semctl((int)arg1, (int)arg2, (int)arg3, arg4);
910 break;
911 case 1:
912 /* sys_semget(): */
913 ret = sys_semget((key_t)arg1, (int)arg2, (int)arg3);
914 break;
915 case 2:
916 /* sys_semop(): */
917 ret = sys_semop((int)arg1, (struct sembuf *)A(arg2), (unsigned)arg3);
918 break;
919 default:
920 ret = -EINVAL;
921 break;
922 };
923 return ret;
924 }
925
926 struct msgbuf32 {
927 s32 mtype;
928 char mtext[1];
929 };
930
931 struct ipc_perm32
932 {
933 key_t key;
934 __kernel_uid_t32 uid;
935 __kernel_gid_t32 gid;
936 __kernel_uid_t32 cuid;
937 __kernel_gid_t32 cgid;
938 __kernel_mode_t32 mode;
939 unsigned short seq;
940 };
941
942 struct msqid_ds32
943 {
944 struct ipc_perm32 msg_perm;
945 u32 msg_first;
946 u32 msg_last;
947 __kernel_time_t32 msg_stime;
948 __kernel_time_t32 msg_rtime;
949 __kernel_time_t32 msg_ctime;
950 u32 wwait;
951 u32 rwait;
952 unsigned short msg_cbytes;
953 unsigned short msg_qnum;
954 unsigned short msg_qbytes;
955 __kernel_ipc_pid_t32 msg_lspid;
956 __kernel_ipc_pid_t32 msg_lrpid;
957 };
958
959 static inline int sunos_msqid_get(struct msqid_ds32 *user,
960 struct msqid_ds *kern)
961 {
962 if(get_user(kern->msg_perm.key, &user->msg_perm.key) ||
963 __get_user(kern->msg_perm.uid, &user->msg_perm.uid) ||
964 __get_user(kern->msg_perm.gid, &user->msg_perm.gid) ||
965 __get_user(kern->msg_perm.cuid, &user->msg_perm.cuid) ||
966 __get_user(kern->msg_perm.cgid, &user->msg_perm.cgid) ||
967 __get_user(kern->msg_stime, &user->msg_stime) ||
968 __get_user(kern->msg_rtime, &user->msg_rtime) ||
969 __get_user(kern->msg_ctime, &user->msg_ctime) ||
970 __get_user(kern->msg_ctime, &user->msg_cbytes) ||
971 __get_user(kern->msg_ctime, &user->msg_qnum) ||
972 __get_user(kern->msg_ctime, &user->msg_qbytes) ||
973 __get_user(kern->msg_ctime, &user->msg_lspid) ||
974 __get_user(kern->msg_ctime, &user->msg_lrpid))
975 return -EFAULT;
976 return 0;
977 }
978
979 static inline int sunos_msqid_put(struct msqid_ds32 *user,
980 struct msqid_ds *kern)
981 {
982 if(put_user(kern->msg_perm.key, &user->msg_perm.key) ||
983 __put_user(kern->msg_perm.uid, &user->msg_perm.uid) ||
984 __put_user(kern->msg_perm.gid, &user->msg_perm.gid) ||
985 __put_user(kern->msg_perm.cuid, &user->msg_perm.cuid) ||
986 __put_user(kern->msg_perm.cgid, &user->msg_perm.cgid) ||
987 __put_user(kern->msg_stime, &user->msg_stime) ||
988 __put_user(kern->msg_rtime, &user->msg_rtime) ||
989 __put_user(kern->msg_ctime, &user->msg_ctime) ||
990 __put_user(kern->msg_ctime, &user->msg_cbytes) ||
991 __put_user(kern->msg_ctime, &user->msg_qnum) ||
992 __put_user(kern->msg_ctime, &user->msg_qbytes) ||
993 __put_user(kern->msg_ctime, &user->msg_lspid) ||
994 __put_user(kern->msg_ctime, &user->msg_lrpid))
995 return -EFAULT;
996 return 0;
997 }
998
999 static inline int sunos_msgbuf_get(struct msgbuf32 *user, struct msgbuf *kern, int len)
1000 {
1001 if(get_user(kern->mtype, &user->mtype) ||
1002 __copy_from_user(kern->mtext, &user->mtext, len))
1003 return -EFAULT;
1004 return 0;
1005 }
1006
1007 static inline int sunos_msgbuf_put(struct msgbuf32 *user, struct msgbuf *kern, int len)
1008 {
1009 if(put_user(kern->mtype, &user->mtype) ||
1010 __copy_to_user(user->mtext, kern->mtext, len))
1011 return -EFAULT;
1012 return 0;
1013 }
1014
1015 asmlinkage int sunos_msgsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 arg4)
1016 {
1017 struct sparc_stackf32 *sp;
1018 struct msqid_ds kds;
1019 struct msgbuf *kmbuf;
1020 mm_segment_t old_fs = get_fs();
1021 u32 arg5;
1022 int rval;
1023
1024 switch(op) {
1025 case 0:
1026 rval = sys_msgget((key_t)arg1, (int)arg2);
1027 break;
1028 case 1:
1029 if(!sunos_msqid_get((struct msqid_ds32 *)A(arg3), &kds)) {
1030 set_fs(KERNEL_DS);
1031 rval = sys_msgctl((int)arg1, (int)arg2,
1032 (struct msqid_ds *)A(arg3));
1033 set_fs(old_fs);
1034 if(!rval)
1035 rval = sunos_msqid_put((struct msqid_ds32 *)A(arg3),
1036 &kds);
1037 } else
1038 rval = -EFAULT;
1039 break;
1040 case 2:
1041 rval = -EFAULT;
1042 kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3,
1043 GFP_KERNEL);
1044 if(!kmbuf)
1045 break;
1046 sp = (struct sparc_stackf32 *)
1047 (current->thread.kregs->u_regs[UREG_FP] & 0xffffffffUL);
1048 if(get_user(arg5, &sp->xxargs[0])) {
1049 rval = -EFAULT;
1050 break;
1051 }
1052 set_fs(KERNEL_DS);
1053 rval = sys_msgrcv((int)arg1, kmbuf, (size_t)arg3,
1054 (long)arg4, (int)arg5);
1055 set_fs(old_fs);
1056 if(!rval)
1057 rval = sunos_msgbuf_put((struct msgbuf32 *)A(arg2),
1058 kmbuf, arg3);
1059 kfree(kmbuf);
1060 break;
1061 case 3:
1062 rval = -EFAULT;
1063 kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3,
1064 GFP_KERNEL);
1065 if(!kmbuf || sunos_msgbuf_get((struct msgbuf32 *)A(arg2),
1066 kmbuf, arg3))
1067 break;
1068 set_fs(KERNEL_DS);
1069 rval = sys_msgsnd((int)arg1, kmbuf, (size_t)arg3, (int)arg4);
1070 set_fs(old_fs);
1071 kfree(kmbuf);
1072 break;
1073 default:
1074 rval = -EINVAL;
1075 break;
1076 }
1077 return rval;
1078 }
1079
1080 struct shmid_ds32 {
1081 struct ipc_perm32 shm_perm;
1082 int shm_segsz;
1083 __kernel_time_t32 shm_atime;
1084 __kernel_time_t32 shm_dtime;
1085 __kernel_time_t32 shm_ctime;
1086 __kernel_ipc_pid_t32 shm_cpid;
1087 __kernel_ipc_pid_t32 shm_lpid;
1088 unsigned short shm_nattch;
1089 };
1090
1091 static inline int sunos_shmid_get(struct shmid_ds32 *user,
1092 struct shmid_ds *kern)
1093 {
1094 if(get_user(kern->shm_perm.key, &user->shm_perm.key) ||
1095 __get_user(kern->shm_perm.uid, &user->shm_perm.uid) ||
1096 __get_user(kern->shm_perm.gid, &user->shm_perm.gid) ||
1097 __get_user(kern->shm_perm.cuid, &user->shm_perm.cuid) ||
1098 __get_user(kern->shm_perm.cgid, &user->shm_perm.cgid) ||
1099 __get_user(kern->shm_segsz, &user->shm_segsz) ||
1100 __get_user(kern->shm_atime, &user->shm_atime) ||
1101 __get_user(kern->shm_dtime, &user->shm_dtime) ||
1102 __get_user(kern->shm_ctime, &user->shm_ctime) ||
1103 __get_user(kern->shm_cpid, &user->shm_cpid) ||
1104 __get_user(kern->shm_lpid, &user->shm_lpid) ||
1105 __get_user(kern->shm_nattch, &user->shm_nattch))
1106 return -EFAULT;
1107 return 0;
1108 }
1109
1110 static inline int sunos_shmid_put(struct shmid_ds32 *user,
1111 struct shmid_ds *kern)
1112 {
1113 if(put_user(kern->shm_perm.key, &user->shm_perm.key) ||
1114 __put_user(kern->shm_perm.uid, &user->shm_perm.uid) ||
1115 __put_user(kern->shm_perm.gid, &user->shm_perm.gid) ||
1116 __put_user(kern->shm_perm.cuid, &user->shm_perm.cuid) ||
1117 __put_user(kern->shm_perm.cgid, &user->shm_perm.cgid) ||
1118 __put_user(kern->shm_segsz, &user->shm_segsz) ||
1119 __put_user(kern->shm_atime, &user->shm_atime) ||
1120 __put_user(kern->shm_dtime, &user->shm_dtime) ||
1121 __put_user(kern->shm_ctime, &user->shm_ctime) ||
1122 __put_user(kern->shm_cpid, &user->shm_cpid) ||
1123 __put_user(kern->shm_lpid, &user->shm_lpid) ||
1124 __put_user(kern->shm_nattch, &user->shm_nattch))
1125 return -EFAULT;
1126 return 0;
1127 }
1128
1129 asmlinkage int sunos_shmsys(int op, u32 arg1, u32 arg2, u32 arg3)
1130 {
1131 struct shmid_ds ksds;
1132 unsigned long raddr;
1133 mm_segment_t old_fs = get_fs();
1134 int rval;
1135
1136 switch(op) {
1137 case 0:
1138 /* sys_shmat(): attach a shared memory area */
1139 rval = sys_shmat((int)arg1,(char *)A(arg2),(int)arg3,&raddr);
1140 if(!rval)
1141 rval = (int) raddr;
1142 break;
1143 case 1:
1144 /* sys_shmctl(): modify shared memory area attr. */
1145 if(!sunos_shmid_get((struct shmid_ds32 *)A(arg3), &ksds)) {
1146 set_fs(KERNEL_DS);
1147 rval = sys_shmctl((int)arg1,(int)arg2, &ksds);
1148 set_fs(old_fs);
1149 if(!rval)
1150 rval = sunos_shmid_put((struct shmid_ds32 *)A(arg3),
1151 &ksds);
1152 } else
1153 rval = -EFAULT;
1154 break;
1155 case 2:
1156 /* sys_shmdt(): detach a shared memory area */
1157 rval = sys_shmdt((char *)A(arg1));
1158 break;
1159 case 3:
1160 /* sys_shmget(): get a shared memory area */
1161 rval = sys_shmget((key_t)arg1,(int)arg2,(int)arg3);
1162 break;
1163 default:
1164 rval = -EINVAL;
1165 break;
1166 };
1167 return rval;
1168 }
1169
1170 extern asmlinkage long sparc32_open(const char * filename, int flags, int mode);
1171
1172 asmlinkage int sunos_open(u32 fname, int flags, int mode)
1173 {
1174 const char *filename = (const char *)(long)fname;
1175
1176 return sparc32_open(filename, flags, mode);
1177 }
1178
1179 #define SUNOS_EWOULDBLOCK 35
1180
1181 /* see the sunos man page read(2v) for an explanation
1182 of this garbage. We use O_NDELAY to mark
1183 file descriptors that have been set non-blocking
1184 using 4.2BSD style calls. (tridge) */
1185
1186 static inline int check_nonblock(int ret, int fd)
1187 {
1188 if (ret == -EAGAIN) {
1189 struct file * file = fget(fd);
1190 if (file) {
1191 if (file->f_flags & O_NDELAY)
1192 ret = -SUNOS_EWOULDBLOCK;
1193 fput(file);
1194 }
1195 }
1196 return ret;
1197 }
1198
1199 extern asmlinkage int sys_read(unsigned int fd, char *buf, unsigned long count);
1200 extern asmlinkage int sys_write(unsigned int fd, char *buf, unsigned long count);
1201 extern asmlinkage int sys_recv(int fd, void *ubuf, size_t size, unsigned flags);
1202 extern asmlinkage int sys_send(int fd, void *buff, size_t len, unsigned flags);
1203 extern asmlinkage int sys_accept(int fd, struct sockaddr *sa, int *addrlen);
1204 extern asmlinkage int sys32_readv(u32 fd, u32 vector, s32 count);
1205 extern asmlinkage int sys32_writev(u32 fd, u32 vector, s32 count);
1206
1207 asmlinkage int sunos_read(unsigned int fd, u32 buf, u32 count)
1208 {
1209 int ret;
1210
1211 ret = check_nonblock(sys_read(fd, (char *)A(buf), count), fd);
1212 return ret;
1213 }
1214
1215 asmlinkage int sunos_readv(u32 fd, u32 vector, s32 count)
1216 {
1217 int ret;
1218
1219 ret = check_nonblock(sys32_readv(fd, vector, count), fd);
1220 return ret;
1221 }
1222
1223 asmlinkage int sunos_write(unsigned int fd, u32 buf, u32 count)
1224 {
1225 int ret;
1226
1227 ret = check_nonblock(sys_write(fd, (char *)A(buf), count), fd);
1228 return ret;
1229 }
1230
1231 asmlinkage int sunos_writev(u32 fd, u32 vector, s32 count)
1232 {
1233 int ret;
1234
1235 ret = check_nonblock(sys32_writev(fd, vector, count), fd);
1236 return ret;
1237 }
1238
1239 asmlinkage int sunos_recv(int fd, u32 ubuf, int size, unsigned flags)
1240 {
1241 int ret;
1242
1243 ret = check_nonblock(sys_recv(fd, (void *)A(ubuf), size, flags), fd);
1244 return ret;
1245 }
1246
1247 asmlinkage int sunos_send(int fd, u32 buff, int len, unsigned flags)
1248 {
1249 int ret;
1250
1251 ret = check_nonblock(sys_send(fd, (void *)A(buff), len, flags), fd);
1252 return ret;
1253 }
1254
1255 extern asmlinkage int sys_setsockopt(int fd, int level, int optname,
1256 char *optval, int optlen);
1257
1258 asmlinkage int sunos_socket(int family, int type, int protocol)
1259 {
1260 int ret, one = 1;
1261
1262 ret = sys_socket(family, type, protocol);
1263 if (ret < 0)
1264 goto out;
1265
1266 sys_setsockopt(ret, SOL_SOCKET, SO_BSDCOMPAT,
1267 (char *)&one, sizeof(one));
1268 out:
1269 return ret;
1270 }
1271
1272 asmlinkage int sunos_accept(int fd, u32 sa, u32 addrlen)
1273 {
1274 int ret, one = 1;
1275
1276 while (1) {
1277 ret = check_nonblock(sys_accept(fd, (struct sockaddr *)A(sa),
1278 (int *)A(addrlen)), fd);
1279 if (ret != -ENETUNREACH && ret != -EHOSTUNREACH)
1280 break;
1281 }
1282 if (ret < 0)
1283 goto out;
1284
1285 sys_setsockopt(ret, SOL_SOCKET, SO_BSDCOMPAT,
1286 (char *)&one, sizeof(one));
1287 out:
1288 return ret;
1289 }
1290
1291 #define SUNOS_SV_INTERRUPT 2
1292
1293 asmlinkage int sunos_sigaction (int sig, u32 act, u32 oact)
1294 {
1295 struct k_sigaction new_ka, old_ka;
1296 int ret;
1297
1298 if (act) {
1299 old_sigset_t32 mask;
1300
1301 if (get_user((long)new_ka.sa.sa_handler, &((struct old_sigaction32 *)A(act))->sa_handler) ||
1302 __get_user(new_ka.sa.sa_flags, &((struct old_sigaction32 *)A(act))->sa_flags))
1303 return -EFAULT;
1304 __get_user(mask, &((struct old_sigaction32 *)A(act))->sa_mask);
1305 new_ka.sa.sa_restorer = NULL;
1306 new_ka.ka_restorer = NULL;
1307 siginitset(&new_ka.sa.sa_mask, mask);
1308 new_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT;
1309 }
1310
1311 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
1312
1313 if (!ret && oact) {
1314 old_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT;
1315 if (put_user((long)old_ka.sa.sa_handler, &((struct old_sigaction32 *)A(oact))->sa_handler) ||
1316 __put_user(old_ka.sa.sa_flags, &((struct old_sigaction32 *)A(oact))->sa_flags))
1317 return -EFAULT;
1318 __put_user(old_ka.sa.sa_mask.sig[0], &((struct old_sigaction32 *)A(oact))->sa_mask);
1319 }
1320
1321 return ret;
1322 }
1323
1324 extern asmlinkage int sys_setsockopt(int fd, int level, int optname,
1325 char *optval, int optlen);
1326 extern asmlinkage int sys32_getsockopt(int fd, int level, int optname,
1327 u32 optval, u32 optlen);
1328
1329 asmlinkage int sunos_setsockopt(int fd, int level, int optname, u32 optval,
1330 int optlen)
1331 {
1332 int tr_opt = optname;
1333 int ret;
1334
1335 if (level == SOL_IP) {
1336 /* Multicast socketopts (ttl, membership) */
1337 if (tr_opt >=2 && tr_opt <= 6)
1338 tr_opt += 30;
1339 }
1340 ret = sys_setsockopt(fd, level, tr_opt, (char *)A(optval), optlen);
1341 return ret;
1342 }
1343
1344 asmlinkage int sunos_getsockopt(int fd, int level, int optname,
1345 u32 optval, u32 optlen)
1346 {
1347 int tr_opt = optname;
1348 int ret;
1349
1350 if (level == SOL_IP) {
1351 /* Multicast socketopts (ttl, membership) */
1352 if (tr_opt >=2 && tr_opt <= 6)
1353 tr_opt += 30;
1354 }
1355 ret = sys32_getsockopt(fd, level, tr_opt, optval, optlen);
1356 return ret;
1357 }
Copy of Dave Jones history.git as used by http://archive.org/details/git-history-of-linux