2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
11 * Linux module support routines.
14 #include <afsconfig.h>
15 #include "afs/param.h"
18 #include <linux/module.h> /* early to avoid printf->printk mapping */
19 #include "afs/sysincludes.h"
20 #include "afsincludes.h"
21 #include <linux/unistd.h> /* For syscall numbers. */
24 #ifdef AFS_AMD64_LINUX20_ENV
25 #include <asm/ia32_unistd.h>
28 #include <linux/proc_fs.h>
29 #include <linux/slab.h>
30 #include <linux/init.h>
31 #include <linux/sched.h>
34 #define NR_syscalls 222
37 /* On SPARC64 and S390X, sys_call_table contains 32-bit entries
38 * even though pointers are 64 bit quantities.
39 * XXX unify this with osi_probe.c
41 #if defined(AFS_SPARC64_LINUX20_ENV) || defined(AFS_S390X_LINUX24_ENV)
42 #define SYSCALLTYPE unsigned int
43 #define POINTER2SYSCALL (unsigned int)(unsigned long)
44 #define SYSCALL2POINTER (void *)(long)
46 #define SYSCALLTYPE void *
47 #define POINTER2SYSCALL (void *)
48 #define SYSCALL2POINTER (void *)
51 #if defined(AFS_S390X_LINUX24_ENV)
52 #define INSERT_SYSCALL(SLOT, TMPPAGE, FUNC) \
53 if (SYSCALL2POINTER FUNC > 0x7fffffff) { \
54 TMPPAGE = kmalloc ( PAGE_SIZE, GFP_DMA|GFP_KERNEL ); \
55 if (SYSCALL2POINTER TMPPAGE > 0x7fffffff) { \
56 printf("Cannot allocate page for FUNC syscall jump vector\n"); \
59 memcpy(TMPPAGE, syscall_jump_code, sizeof(syscall_jump_code)); \
60 *(void **)(TMPPAGE + 0x0c) = &FUNC; \
61 afs_sys_call_table[_S(SLOT)] = POINTER2SYSCALL TMPPAGE; \
63 afs_sys_call_table[_S(SLOT)] = POINTER2SYSCALL FUNC;
65 #define INSERT_SYSCALL(SLOT, TMPPAGE, FUNC) \
66 afs_sys_call_table[_S(SLOT)] = POINTER2SYSCALL FUNC;
69 #if defined(AFS_IA64_LINUX20_ENV)
70 #define _S(x) ((x)-1024)
76 /***** ALL PLATFORMS *****/
77 extern asmlinkage long
78 afs_syscall(long syscall, long parm1, long parm2, long parm3, long parm4);
80 static SYSCALLTYPE *afs_sys_call_table;
81 static SYSCALLTYPE afs_ni_syscall = 0;
83 #ifdef AFS_S390X_LINUX24_ENV
84 static void *afs_sys_setgroups_page = 0;
85 #if defined(__NR_setgroups32)
86 static void *afs_sys_setgroups32_page = 0;
88 static void *afs_syscall_page = 0;
90 /* Because of how the syscall table is handled, we need to ensure our
91 syscalls are within the first 2gb of address space. This means we need
92 self-modifying code we can inject to call our handlers if the module
93 is loaded high. If keyrings had advanced as fast as false protection
94 this would be unnecessary. */
96 uint32_t syscall_jump_code[] = {
97 0xe3d0f030, 0x00240dd0, 0xa7f40006, 0xffffffff, 0xffffffff, 0xe310d004,
98 0x0004e3d0, 0xf0300004, 0x07f10000,
102 extern asmlinkage long afs_xsetgroups(int gidsetsize, gid_t * grouplist);
103 asmlinkage long (*sys_setgroupsp) (int gidsetsize, gid_t * grouplist);
105 extern asmlinkage long afs_xsetgroups32(int gidsetsize, gid_t * grouplist);
106 asmlinkage int (*sys_setgroups32p) (int gidsetsize,
107 __kernel_gid32_t * grouplist);
110 #ifdef AFS_AMD64_LINUX20_ENV
111 static SYSCALLTYPE *afs_ia32_sys_call_table;
112 static SYSCALLTYPE ia32_ni_syscall = 0;
114 extern asmlinkage long afs32_xsetgroups(int gidsetsize, u16 * grouplist);
115 asmlinkage long (*sys32_setgroupsp) (int gidsetsize, u16 * grouplist);
116 extern asmlinkage long afs32_xsetgroups32(int gidsetsize, gid_t * grouplist);
117 asmlinkage long (*sys32_setgroups32p) (int gidsetsize, gid_t * grouplist);
118 #endif /* AFS_AMD64_LINUX20_ENV */
122 #ifdef AFS_PPC64_LINUX26_ENV
123 static SYSCALLTYPE *afs_sys_call_table32;
124 static SYSCALLTYPE afs_ni_syscall32 = 0;
125 static SYSCALLTYPE old_sys_setgroupsp = 0;
126 static SYSCALLTYPE old_sys32_setgroupsp = 0;
128 asmlinkage long afs32_xsetgroups(int gidsetsize, gid_t *grouplist);
129 asmlinkage long (*sys32_setgroupsp)(int gidsetsize, gid_t *grouplist);
131 asmlinkage long sys_close(unsigned int fd);
132 static void sys_setgroups_stub(void)
133 __attribute__ ((pure,const,no_instrument_function));
134 static void sys_setgroups_stub(void)
136 printf("*** error! sys_setgroups_stub called\n");
139 static void sys32_setgroups_stub(void)
140 __attribute__ ((pure,const,no_instrument_function));
141 static void sys32_setgroups_stub(void)
143 printf("*** error! sys32_setgroups_stub called\n");
146 #endif /* AFS_PPC64_LINUX26_ENV */
149 /***** SPARC64 *****/
150 #ifdef AFS_SPARC64_LINUX26_ENV
151 static SYSCALLTYPE *afs_sys_call_table32;
152 static SYSCALLTYPE afs_ni_syscall32 = 0;
154 extern asmlinkage long afs32_xsetgroups(int gidsetsize, u16 * grouplist);
155 asmlinkage int (*sys32_setgroupsp) (int gidsetsize,
156 __kernel_gid32_t * grouplist);
157 /* This number is not exported for some bizarre reason. */
158 #define __NR_setgroups32 82
159 extern asmlinkage long afs32_xsetgroups32(int gidsetsize, gid_t * grouplist);
160 asmlinkage int (*sys32_setgroups32p) (int gidsetsize,
161 __kernel_gid32_t * grouplist);
164 afs_syscall32(long syscall, long parm1, long parm2, long parm3, long parm4,
167 __asm__ __volatile__("srl %o4, 0, %o4\n\t"
169 "call afs_syscall\n\t"
170 "srl %o5, 0, %o5\n\t"
174 #endif /* AFS_SPARC64_LINUX20_ENV */
178 #ifdef AFS_IA64_LINUX20_ENV
181 afs_syscall_stub(int r0, int r1, long r2, long r3, long r4, long gp)
183 __asm__ __volatile__("alloc r42 = ar.pfs, 8, 3, 6, 0\n\t"
184 "mov r41 = b0\n\t" /* save rp */
190 "mov out5 = gp\n\t" /* save gp */
195 "addl r15=.fptr_afs_syscall-.L1,r3\n\t"
199 "ld8 r16=[r15],8\n\t"
203 "br.call.sptk.many b0 = b6\n\t"
205 "mov ar.pfs = r42\n\t"
207 "mov gp = r48\n\t" /* restore gp */
208 "br.ret.sptk.many b0\n"
209 ".fptr_afs_syscall:\n\t"
210 "data8 @fptr(afs_syscall)\n\t"
215 afs_xsetgroups_stub(int r0, int r1, long r2, long r3, long r4, long gp)
217 __asm__ __volatile__("alloc r42 = ar.pfs, 8, 3, 6, 0\n\t"
218 "mov r41 = b0\n\t" /* save rp */
224 "mov out5 = gp\n\t" /* save gp */
229 "addl r15=.fptr_afs_xsetgroups - .L2,r3\n\t"
233 "ld8 r16=[r15],8\n\t"
237 "br.call.sptk.many b0 = b6\n\t"
239 "mov ar.pfs = r42\n\t"
241 "mov gp = r48\n\t" /* restore gp */
242 "br.ret.sptk.many b0\n"
243 ".fptr_afs_xsetgroups:\n\t"
244 "data8 @fptr(afs_xsetgroups)\n\t"
253 #endif /* AFS_IA64_LINUX20_ENV */
257 * sys_call_table hook for PPC64
258 * by Soewono Effendi <Soewono.Effendi@sysgo.de>
259 * for IBM Deutschland
260 * Thanks go to SYSGO's team for their support:
261 * Horst Birthelmer <Horst.Birthelmer@sysgo.de>
262 * Marius Groeger <Marius.Groeger@sysgo.de>
264 #if defined(AFS_PPC64_LINUX26_ENV)
265 extern void flush_cache(void *, unsigned long);
266 #define PPC_LO(v) ((v) & 0xffff)
267 #define PPC_HI(v) (((v) >> 16) & 0xffff)
268 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
269 #define PPC_HLO(v) ((short)(((v) >> 32) & 0xffff))
270 #define PPC_HHI(v) ((short)(((v) >> 48) & 0xffff))
274 unsigned long funcaddr;
280 unsigned char jump[136];
283 struct ppc64_opd opd;
284 } __attribute__ ((packed));
286 /* a stub to fix up r2 (TOC ptr) and to jump to our sys_call hook
287 function. We patch the new r2 value and function pointer into
289 #define PPC64_STUB(stub) \
290 static struct ppc64_stub stub = \
292 0xf8, 0x41, 0x00, 0x28, /* std r2,40(r1) */ \
293 0xfb, 0xc1, 0xff, 0xf0, /* std r30,-16(r1) */ \
294 0xfb, 0xa1, 0xff, 0xe8, /* std r29,-24(r1) */ \
295 0x7c, 0x5d, 0x13, 0x78, /* mr r29,r2 */ \
296 0x3c, 0x40, 0x12, 0x34, /*16: lis r2,4660 */ \
297 0x60, 0x42, 0x56, 0x78, /*20: ori r2,r2,22136 */ \
298 0x78, 0x42, 0x07, 0xc6, /* rldicr r2,r2,32,31 */ \
299 0x64, 0x42, 0x90, 0xab, /*28: oris r2,r2,37035 */ \
300 0x60, 0x42, 0xcd, 0xef, /*32: ori r2,r2,52719 */ \
301 0x3f, 0xc2, 0x00, 0x00, /*36: addis r30,r2,0 */ \
302 0x3b, 0xde, 0x00, 0x00, /*40: addi r30,r30,0 */ \
303 0xfb, 0xbe, 0x00, 0x88, /* std r29,136(r30) */ \
304 0x7f, 0xa8, 0x02, 0xa6, /* mflr r29 */ \
305 0xfb, 0xbe, 0x00, 0x90, /* std r29,144(r30) */ \
306 0xeb, 0xde, 0x00, 0x98, /* ld r30,152(r30) */ \
307 0x7f, 0xc8, 0x03, 0xa6, /* mtlr r30 */ \
308 0xeb, 0xa1, 0xff, 0xe8, /* ld r29,-24(r1) */ \
309 0xeb, 0xc1, 0xff, 0xf0, /* ld r30,-16(r1) */ \
310 0x4e, 0x80, 0x00, 0x21, /* blrl */ \
311 0x3c, 0x40, 0x12, 0x34, /*76: lis r2,4660 */ \
312 0x60, 0x42, 0x56, 0x78, /*80: ori r2,r2,22136 */ \
313 0x78, 0x42, 0x07, 0xc6, /* rldicr r2,r2,32,31 */ \
314 0x64, 0x42, 0x90, 0xab, /*88: oris r2,r2,37035 */ \
315 0x60, 0x42, 0xcd, 0xef, /*92: ori r2,r2,52719 */ \
316 0xfb, 0xc1, 0xff, 0xf0, /* std r30,-16(r1) */ \
317 0xfb, 0xa1, 0xff, 0xe8, /* std r29,-24(r1) */ \
318 0x3f, 0xc2, 0xab, 0xcd, /*104: addis r30,r2,-21555 */ \
319 0x3b, 0xde, 0x78, 0x90, /*108: addi r30,r30,30864 */ \
320 0xeb, 0xbe, 0x00, 0x90, /* ld r29,144(r30) */ \
321 0x7f, 0xa8, 0x03, 0xa6, /* mtlr r29 */ \
322 0xe8, 0x5e, 0x00, 0x88, /* ld r2,136(r30) */ \
323 0xeb, 0xa1, 0xff, 0xe8, /* ld r29,-24(r1) */ \
324 0xeb, 0xc1, 0xff, 0xf0, /* ld r30,-16(r1) */ \
325 0x4e, 0x80, 0x00, 0x20 /* blr */ \
328 static void * create_stub(struct ppc64_stub *stub,
329 struct ppc64_opd *opd)
331 unsigned short *p1, *p2, *p3, *p4;
334 stub->opd.funcaddr = opd->funcaddr;
335 stub->opd.r2 = opd->r2;
336 addr = (unsigned long) opd->r2;
337 p1 = (unsigned short*) &stub->jump[18];
338 p2 = (unsigned short*) &stub->jump[22];
339 p3 = (unsigned short*) &stub->jump[30];
340 p4 = (unsigned short*) &stub->jump[34];
347 addr = (unsigned long) stub - opd->r2;
348 p1 = (unsigned short*) &stub->jump[38];
349 p2 = (unsigned short*) &stub->jump[42];
352 p1 = (unsigned short*) &stub->jump[106];
353 p2 = (unsigned short*) &stub->jump[110];
357 addr = (unsigned long) opd->r2;
358 p1 = (unsigned short*) &stub->jump[78];
359 p2 = (unsigned short*) &stub->jump[82];
360 p3 = (unsigned short*) &stub->jump[90];
361 p4 = (unsigned short*) &stub->jump[94];
368 flush_cache((void *)stub, sizeof(*stub));
369 return ((void*)(stub));
372 PPC64_STUB(afs_sys_call_stub);
373 PPC64_STUB(afs_xsetgroups_stub);
374 PPC64_STUB(afs_xsetgroups32_stub);
375 #endif /* AFS_PPC64_LINUX26_ENV */
378 /**********************************************************************/
379 /********************* System Call Initialization *********************/
380 /**********************************************************************/
382 int osi_syscall_init(void)
385 #ifdef AFS_IA64_LINUX20_ENV
386 /* This needs to be first because we are declaring variables, and
387 * also because the handling of syscall pointers is bizarre enough
388 * that we want to special-case even the "common" part.
390 unsigned long kernel_gp = 0;
391 static struct fptr sys_setgroups;
393 afs_sys_call_table = osi_find_syscall_table(0);
394 if (afs_sys_call_table) {
396 /* check we aren't already loaded */
397 /* XXX this can't be right */
398 if (SYSCALL2POINTER afs_sys_call_table[_S(__NR_afs_syscall)]
400 printf("AFS syscall entry point already in use!\n");
404 /* setup AFS entry point */
405 afs_ni_syscall = afs_sys_call_table[_S(__NR_afs_syscall)];
406 afs_sys_call_table[_S(__NR_afs_syscall)] =
407 POINTER2SYSCALL((struct fptr *)afs_syscall_stub)->ip;
409 /* setup setgroups */
410 sys_setgroupsp = (void *)&sys_setgroups;
412 ((struct fptr *)sys_setgroupsp)->ip =
413 SYSCALL2POINTER afs_sys_call_table[_S(__NR_setgroups)];
414 ((struct fptr *)sys_setgroupsp)->gp = kernel_gp;
416 afs_sys_call_table[_S(__NR_setgroups)] =
417 POINTER2SYSCALL((struct fptr *)afs_xsetgroups_stub)->ip;
420 /* XXX no 32-bit syscalls on IA64? */
423 #elif defined(AFS_PPC64_LINUX26_ENV)
425 afs_sys_call_table = osi_find_syscall_table(0);
426 if (afs_sys_call_table) {
428 struct ppc64_opd* opd = (struct ppc64_opd*) sys_close;
429 unsigned long r2 = opd->r2;
430 opd = (struct ppc64_opd*) afs_syscall;
431 afs_sys_call_table32 = (unsigned long)afs_sys_call_table -
432 NR_syscalls * sizeof(SYSCALLTYPE);
433 /* check we aren't already loaded */
434 p = SYSCALL2POINTER afs_sys_call_table[_S(__NR_afs_syscall)];
435 if ((unsigned long)p == opd->funcaddr) {
436 printf("AFS syscall entry point already in use!\n");
439 /* setup AFS entry point */
440 p = create_stub(&afs_sys_call_stub, opd);
441 afs_ni_syscall = afs_sys_call_table[_S(__NR_afs_syscall)];
442 afs_sys_call_table[_S(__NR_afs_syscall)] = POINTER2SYSCALL p;
444 /* setup setgroups */
445 opd = (struct ppc64_opd*) afs_xsetgroups;
446 p = create_stub(&afs_xsetgroups_stub, opd);
447 old_sys_setgroupsp = SYSCALL2POINTER afs_sys_call_table[_S(__NR_setgroups)];
448 afs_sys_call_table[_S(__NR_setgroups)] = POINTER2SYSCALL p;
449 opd = (struct ppc64_opd*) sys_setgroups_stub;
450 opd->funcaddr = old_sys_setgroupsp;
453 /* setup setgroups32 */
454 opd = (struct ppc64_opd*) afs32_xsetgroups;
455 p = create_stub(&afs_xsetgroups32_stub, opd);
456 old_sys32_setgroupsp = SYSCALL2POINTER afs_sys_call_table32[_S(__NR_setgroups)];
457 afs_sys_call_table32[_S(__NR_setgroups)] = POINTER2SYSCALL p;
458 opd = (struct ppc64_opd*) sys32_setgroups_stub;
459 opd->funcaddr = old_sys32_setgroupsp;
462 flush_cache((void *)afs_sys_call_table, 2*NR_syscalls*sizeof(void*));
464 sys_setgroupsp = sys_setgroups_stub;
465 sys32_setgroupsp = sys32_setgroups_stub;
467 /***** COMMON (except IA64 or PPC64) *****/
468 #else /* !AFS_IA64_LINUX20_ENV */
470 afs_sys_call_table = osi_find_syscall_table(0);
471 if (afs_sys_call_table) {
473 /* check we aren't already loaded */
474 if (SYSCALL2POINTER afs_sys_call_table[_S(__NR_afs_syscall)]
476 printf("AFS syscall entry point already in use!\n");
480 /* setup AFS entry point */
481 afs_ni_syscall = afs_sys_call_table[_S(__NR_afs_syscall)];
483 INSERT_SYSCALL(__NR_afs_syscall, afs_syscall_page, afs_syscall)
485 /* setup setgroups */
486 sys_setgroupsp = SYSCALL2POINTER afs_sys_call_table[_S(__NR_setgroups)];
487 INSERT_SYSCALL(__NR_setgroups, afs_sys_setgroups_page, afs_xsetgroups)
489 #if defined(__NR_setgroups32)
490 /* setup setgroups32 */
491 sys_setgroups32p = SYSCALL2POINTER afs_sys_call_table[__NR_setgroups32];
492 INSERT_SYSCALL(__NR_setgroups32, afs_sys_setgroups32_page, afs_xsetgroups32)
495 #endif /* !AFS_IA64_LINUX20_ENV */
499 #ifdef AFS_AMD64_LINUX20_ENV
500 afs_ia32_sys_call_table = osi_find_syscall_table(1);
501 if (afs_ia32_sys_call_table) {
502 /* setup AFS entry point for IA32 */
503 ia32_ni_syscall = afs_ia32_sys_call_table[__NR_ia32_afs_syscall];
504 afs_ia32_sys_call_table[__NR_ia32_afs_syscall] =
505 POINTER2SYSCALL afs_syscall;
507 /* setup setgroups for IA32 */
509 SYSCALL2POINTER afs_ia32_sys_call_table[__NR_ia32_setgroups];
510 afs_ia32_sys_call_table[__NR_ia32_setgroups] =
511 POINTER2SYSCALL afs32_xsetgroups;
513 /* setup setgroups32 for IA32 */
515 SYSCALL2POINTER afs_ia32_sys_call_table[__NR_ia32_setgroups32];
516 afs_ia32_sys_call_table[__NR_ia32_setgroups32] =
517 POINTER2SYSCALL afs32_xsetgroups32;
519 #endif /* AFS_AMD64_LINUX20_ENV */
522 /***** SPARC64 *****/
523 #ifdef AFS_SPARC64_LINUX20_ENV
524 afs_sys_call_table32 = osi_find_syscall_table(1);
525 if (afs_sys_call_table32) {
526 /* setup AFS entry point for 32-bit SPARC */
527 afs_ni_syscall32 = afs_sys_call_table32[__NR_afs_syscall];
528 afs_sys_call_table32[__NR_afs_syscall] = POINTER2SYSCALL afs_syscall32;
530 /* setup setgroups for 32-bit SPARC */
531 sys32_setgroupsp = SYSCALL2POINTER afs_sys_call_table32[__NR_setgroups];
532 afs_sys_call_table32[__NR_setgroups] = POINTER2SYSCALL afs32_xsetgroups;
534 /* setup setgroups32 for 32-bit SPARC */
536 SYSCALL2POINTER afs_sys_call_table32[__NR_setgroups32];
537 afs_sys_call_table32[__NR_setgroups32] =
538 POINTER2SYSCALL afs32_xsetgroups32;
540 #endif /* AFS_SPARC64_LINUX20_ENV */
546 /**********************************************************************/
547 /************************ System Call Cleanup *************************/
548 /**********************************************************************/
550 void osi_syscall_clean(void)
553 if (afs_sys_call_table) {
554 /* put back the AFS entry point */
555 afs_sys_call_table[_S(__NR_afs_syscall)] = afs_ni_syscall;
557 /* put back setgroups */
558 #if defined(AFS_IA64_LINUX20_ENV)
559 afs_sys_call_table[_S(__NR_setgroups)] =
560 POINTER2SYSCALL((struct fptr *)sys_setgroupsp)->ip;
561 #elif defined(AFS_PPC64_LINUX26_ENV)
562 afs_sys_call_table[_S(__NR_setgroups)] =
563 POINTER2SYSCALL old_sys_setgroupsp;
564 /* put back setgroups32 for PPC64 */
565 afs_sys_call_table32[__NR_setgroups] =
566 POINTER2SYSCALL old_sys32_setgroupsp;
567 #else /* AFS_IA64_LINUX20_ENV */
568 afs_sys_call_table[_S(__NR_setgroups)] =
569 POINTER2SYSCALL sys_setgroupsp;
572 #if defined(__NR_setgroups32) && !defined(AFS_IA64_LINUX20_ENV)
573 /* put back setgroups32 */
574 afs_sys_call_table[__NR_setgroups32] = POINTER2SYSCALL sys_setgroups32p;
576 #if defined(AFS_S390X_LINUX24_ENV)
577 #if defined(__NR_setgroups32) && !defined(AFS_IA64_LINUX20_ENV)
578 if (afs_sys_setgroups32_page)
579 kfree(afs_sys_setgroups32_page);
581 if (afs_sys_setgroups_page)
582 kfree(afs_sys_setgroups_page);
583 if (afs_syscall_page)
584 kfree(afs_syscall_page);
590 #ifdef AFS_IA64_LINUX20_ENV
591 /* XXX no 32-bit syscalls on IA64? */
596 #ifdef AFS_AMD64_LINUX20_ENV
597 if (afs_ia32_sys_call_table) {
598 /* put back AFS entry point for IA32 */
599 afs_ia32_sys_call_table[__NR_ia32_afs_syscall] =
600 POINTER2SYSCALL ia32_ni_syscall;
602 /* put back setgroups for IA32 */
603 afs_ia32_sys_call_table[__NR_ia32_setgroups] =
604 POINTER2SYSCALL sys32_setgroupsp;
606 /* put back setgroups32 for IA32 */
607 afs_ia32_sys_call_table[__NR_ia32_setgroups32] =
608 POINTER2SYSCALL sys32_setgroups32p;
613 /***** SPARC64 *****/
614 #ifdef AFS_SPARC64_LINUX20_ENV
615 if (afs_sys_call_table32) {
616 /* put back AFS entry point for 32-bit SPARC */
617 afs_sys_call_table32[__NR_afs_syscall] = afs_ni_syscall32;
619 /* put back setgroups for IA32 */
620 afs_sys_call_table32[__NR_setgroups] =
621 POINTER2SYSCALL sys32_setgroupsp;
623 /* put back setgroups32 for IA32 */
624 afs_sys_call_table32[__NR_setgroups32] =
625 POINTER2SYSCALL sys32_setgroups32p;