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805e021f CE |
1 | /* |
2 | * Copyright 2000, International Business Machines Corporation and others. | |
3 | * All Rights Reserved. | |
4 | * | |
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 | |
8 | */ | |
9 | ||
10 | #include <afsconfig.h> | |
11 | #include "afs/param.h" | |
12 | ||
13 | #ifdef IGNORE_SOME_GCC_WARNINGS | |
14 | # pragma GCC diagnostic warning "-Wold-style-definition" | |
15 | # pragma GCC diagnostic warning "-Wstrict-prototypes" | |
16 | #endif | |
17 | ||
18 | #include "afs/sysincludes.h" /* Standard vendor system headers */ | |
19 | #include "afsincludes.h" /* Afs-based standard headers */ | |
20 | #include "afs/afs_stats.h" | |
21 | #include "rx/rx_globals.h" | |
22 | #if !defined(UKERNEL) && !defined(AFS_LINUX20_ENV) | |
23 | #include "net/if.h" | |
24 | #ifdef AFS_SGI62_ENV | |
25 | #include "h/hashing.h" | |
26 | #endif | |
27 | #if !defined(AFS_HPUX110_ENV) && !defined(AFS_DARWIN_ENV) | |
28 | #include "netinet/in_var.h" | |
29 | #endif | |
30 | #endif /* !defined(UKERNEL) */ | |
31 | ||
32 | #if (defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)) || defined(AFS_HPUX_64BIT_ENV) || defined(AFS_SUN5_64BIT_ENV) || (defined(AFS_SGI_ENV) && (_MIPS_SZLONG==64)) || defined(NEED_IOCTL32) | |
33 | static void | |
34 | afs_ioctl32_to_afs_ioctl(const struct afs_ioctl32 *src, struct afs_ioctl *dst) | |
35 | { | |
36 | #ifdef AFS_DARWIN100_ENV | |
37 | dst->in = CAST_USER_ADDR_T(src->in); | |
38 | dst->out = CAST_USER_ADDR_T(src->out); | |
39 | #else | |
40 | dst->in = (char *)(unsigned long)src->in; | |
41 | dst->out = (char *)(unsigned long)src->out; | |
42 | #endif | |
43 | dst->in_size = src->in_size; | |
44 | dst->out_size = src->out_size; | |
45 | } | |
46 | #endif | |
47 | ||
48 | /* | |
49 | * If you need to change copyin_afs_ioctl(), you may also need to change | |
50 | * copyin_iparam(). | |
51 | */ | |
52 | ||
53 | int | |
54 | #ifdef AFS_DARWIN100_ENV | |
55 | copyin_afs_ioctl(user_addr_t cmarg, struct afs_ioctl *dst) | |
56 | #else | |
57 | copyin_afs_ioctl(caddr_t cmarg, struct afs_ioctl *dst) | |
58 | #endif | |
59 | { | |
60 | int code; | |
61 | #if defined(AFS_DARWIN100_ENV) | |
62 | struct afs_ioctl32 dst32; | |
63 | ||
64 | if (!proc_is64bit(current_proc())) { | |
65 | AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code); | |
66 | if (!code) | |
67 | afs_ioctl32_to_afs_ioctl(&dst32, dst); | |
68 | return code; | |
69 | } | |
70 | #endif | |
71 | #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL) | |
72 | struct afs_ioctl32 dst32; | |
73 | ||
74 | if (!(IS64U)) { | |
75 | AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code); | |
76 | if (!code) | |
77 | afs_ioctl32_to_afs_ioctl(&dst32, dst); | |
78 | return code; | |
79 | } | |
80 | #endif /* defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL) */ | |
81 | ||
82 | ||
83 | #if defined(AFS_HPUX_64BIT_ENV) | |
84 | struct afs_ioctl32 dst32; | |
85 | ||
86 | if (is_32bit(u.u_procp)) { /* is_32bit() in proc_iface.h */ | |
87 | AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code); | |
88 | if (!code) | |
89 | afs_ioctl32_to_afs_ioctl(&dst32, dst); | |
90 | return code; | |
91 | } | |
92 | #endif /* defined(AFS_HPUX_64BIT_ENV) */ | |
93 | ||
94 | #if defined(AFS_SUN5_64BIT_ENV) | |
95 | struct afs_ioctl32 dst32; | |
96 | ||
97 | if (get_udatamodel() == DATAMODEL_ILP32) { | |
98 | AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code); | |
99 | if (!code) | |
100 | afs_ioctl32_to_afs_ioctl(&dst32, dst); | |
101 | return code; | |
102 | } | |
103 | #endif /* defined(AFS_SUN5_64BIT_ENV) */ | |
104 | ||
105 | #if defined(AFS_SGI_ENV) && (_MIPS_SZLONG==64) | |
106 | struct afs_ioctl32 dst32; | |
107 | ||
108 | if (!ABI_IS_64BIT(get_current_abi())) { | |
109 | AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code); | |
110 | if (!code) | |
111 | afs_ioctl32_to_afs_ioctl(&dst32, dst); | |
112 | return code; | |
113 | } | |
114 | #endif /* defined(AFS_SGI_ENV) && (_MIPS_SZLONG==64) */ | |
115 | ||
116 | #if defined(AFS_LINUX_64BIT_KERNEL) && !defined(AFS_ALPHA_LINUX20_ENV) && !defined(AFS_IA64_LINUX20_ENV) | |
117 | struct afs_ioctl32 dst32; | |
118 | ||
119 | #ifdef AFS_SPARC64_LINUX26_ENV | |
120 | if (test_thread_flag(TIF_32BIT)) | |
121 | #elif defined(AFS_SPARC64_LINUX24_ENV) | |
122 | if (current->thread.flags & SPARC_FLAG_32BIT) | |
123 | #elif defined(AFS_SPARC64_LINUX20_ENV) | |
124 | if (current->tss.flags & SPARC_FLAG_32BIT) | |
125 | ||
126 | #elif defined(AFS_AMD64_LINUX26_ENV) | |
127 | if (test_thread_flag(TIF_IA32)) | |
128 | #elif defined(AFS_AMD64_LINUX20_ENV) | |
129 | if (current->thread.flags & THREAD_IA32) | |
130 | ||
131 | #elif defined(AFS_PPC64_LINUX26_ENV) | |
132 | #if defined(STRUCT_TASK_STRUCT_HAS_THREAD_INFO) | |
133 | if (current->thread_info->flags & _TIF_32BIT) | |
134 | #else | |
135 | if (task_thread_info(current)->flags & _TIF_32BIT) | |
136 | #endif | |
137 | #elif defined(AFS_PPC64_LINUX20_ENV) | |
138 | if (current->thread.flags & PPC_FLAG_32BIT) | |
139 | ||
140 | #elif defined(AFS_S390X_LINUX26_ENV) | |
141 | if (test_thread_flag(TIF_31BIT)) | |
142 | #elif defined(AFS_S390X_LINUX20_ENV) | |
143 | if (current->thread.flags & S390_FLAG_31BIT) | |
144 | #elif defined(AFS_ARM64_LINUX26_ENV) | |
145 | if (is_compat_task()) | |
146 | ||
147 | #else | |
148 | #error pioctl32 not done for this linux | |
149 | #endif | |
150 | { | |
151 | AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code); | |
152 | if (!code) | |
153 | afs_ioctl32_to_afs_ioctl(&dst32, dst); | |
154 | return code; | |
155 | } | |
156 | #endif /* defined(AFS_LINUX_64BIT_KERNEL) */ | |
157 | ||
158 | AFS_COPYIN(cmarg, (caddr_t) dst, sizeof *dst, code); | |
159 | return code; | |
160 | } | |
161 | ||
162 | ||
163 | #ifdef AFS_AIX32_ENV | |
164 | ||
165 | #include "sys/lockl.h" | |
166 | ||
167 | /* | |
168 | * syscall - this is the VRMIX system call entry point. | |
169 | * | |
170 | * NOTE: | |
171 | * THIS SHOULD BE CHANGED TO afs_syscall(), but requires | |
172 | * all the user-level calls to `syscall' to change. | |
173 | */ | |
174 | syscall(syscall, p1, p2, p3, p4, p5, p6) | |
175 | { | |
176 | int rval1 = 0, code; | |
177 | int monster; | |
178 | int retval = 0; | |
179 | #ifndef AFS_AIX41_ENV | |
180 | extern lock_t kernel_lock; | |
181 | monster = lockl(&kernel_lock, LOCK_SHORT); | |
182 | #endif /* !AFS_AIX41_ENV */ | |
183 | ||
184 | AFS_STATCNT(syscall); | |
185 | setuerror(0); | |
186 | switch (syscall) { | |
187 | case AFSCALL_CALL: | |
188 | rval1 = afs_syscall_call(p1, p2, p3, p4, p5, p6); | |
189 | break; | |
190 | ||
191 | case AFSCALL_SETPAG: | |
192 | AFS_GLOCK(); | |
193 | rval1 = afs_setpag(); | |
194 | AFS_GUNLOCK(); | |
195 | break; | |
196 | ||
197 | case AFSCALL_PIOCTL: | |
198 | AFS_GLOCK(); | |
199 | rval1 = afs_syscall_pioctl(p1, p2, p3, p4); | |
200 | AFS_GUNLOCK(); | |
201 | break; | |
202 | ||
203 | case AFSCALL_ICREATE: | |
204 | rval1 = afs_syscall_icreate(p1, p2, p3, p4, p5, p6); | |
205 | break; | |
206 | ||
207 | case AFSCALL_IOPEN: | |
208 | rval1 = afs_syscall_iopen(p1, p2, p3); | |
209 | break; | |
210 | ||
211 | case AFSCALL_IDEC: | |
212 | rval1 = afs_syscall_iincdec(p1, p2, p3, -1); | |
213 | break; | |
214 | ||
215 | case AFSCALL_IINC: | |
216 | rval1 = afs_syscall_iincdec(p1, p2, p3, 1); | |
217 | break; | |
218 | ||
219 | case AFSCALL_ICL: | |
220 | AFS_GLOCK(); | |
221 | code = Afscall_icl(p1, p2, p3, p4, p5, &retval); | |
222 | AFS_GUNLOCK(); | |
223 | if (!code) | |
224 | rval1 = retval; | |
225 | if (!rval1) | |
226 | rval1 = code; | |
227 | break; | |
228 | ||
229 | default: | |
230 | rval1 = EINVAL; | |
231 | setuerror(EINVAL); | |
232 | break; | |
233 | } | |
234 | ||
235 | out: | |
236 | #ifndef AFS_AIX41_ENV | |
237 | if (monster != LOCK_NEST) | |
238 | unlockl(&kernel_lock); | |
239 | #endif /* !AFS_AIX41_ENV */ | |
240 | return getuerror()? -1 : rval1; | |
241 | } | |
242 | ||
243 | /* | |
244 | * lsetpag - interface to afs_setpag(). | |
245 | */ | |
246 | int | |
247 | lsetpag(void) | |
248 | { | |
249 | ||
250 | AFS_STATCNT(lsetpag); | |
251 | return syscall(AFSCALL_SETPAG, 0, 0, 0, 0, 0); | |
252 | } | |
253 | ||
254 | /* | |
255 | * lpioctl - interface to pioctl() | |
256 | */ | |
257 | int | |
258 | lpioctl(char *path, int cmd, void *cmarg, int follow) | |
259 | { | |
260 | ||
261 | AFS_STATCNT(lpioctl); | |
262 | return syscall(AFSCALL_PIOCTL, path, cmd, cmarg, follow); | |
263 | } | |
264 | ||
265 | #else /* !AFS_AIX32_ENV */ | |
266 | ||
267 | #if defined(AFS_SGI_ENV) | |
268 | struct afsargs { | |
269 | sysarg_t syscall; | |
270 | sysarg_t parm1; | |
271 | sysarg_t parm2; | |
272 | sysarg_t parm3; | |
273 | sysarg_t parm4; | |
274 | sysarg_t parm5; | |
275 | }; | |
276 | ||
277 | ||
278 | int | |
279 | Afs_syscall(struct afsargs *uap, rval_t * rvp) | |
280 | { | |
281 | int error; | |
282 | long retval; | |
283 | ||
284 | AFS_STATCNT(afs_syscall); | |
285 | switch (uap->syscall) { | |
286 | case AFSCALL_ICL: | |
287 | retval = 0; | |
288 | AFS_GLOCK(); | |
289 | error = | |
290 | Afscall_icl(uap->parm1, uap->parm2, uap->parm3, uap->parm4, | |
291 | uap->parm5, &retval); | |
292 | AFS_GUNLOCK(); | |
293 | rvp->r_val1 = retval; | |
294 | break; | |
295 | #ifdef AFS_SGI_XFS_IOPS_ENV | |
296 | case AFSCALL_IDEC64: | |
297 | error = | |
298 | afs_syscall_idec64(uap->parm1, uap->parm2, uap->parm3, uap->parm4, | |
299 | uap->parm5); | |
300 | break; | |
301 | case AFSCALL_IINC64: | |
302 | error = | |
303 | afs_syscall_iinc64(uap->parm1, uap->parm2, uap->parm3, uap->parm4, | |
304 | uap->parm5); | |
305 | break; | |
306 | case AFSCALL_ILISTINODE64: | |
307 | error = | |
308 | afs_syscall_ilistinode64(uap->parm1, uap->parm2, uap->parm3, | |
309 | uap->parm4, uap->parm5); | |
310 | break; | |
311 | case AFSCALL_ICREATENAME64: | |
312 | error = | |
313 | afs_syscall_icreatename64(uap->parm1, uap->parm2, uap->parm3, | |
314 | uap->parm4, uap->parm5); | |
315 | break; | |
316 | #endif | |
317 | #ifdef AFS_SGI_VNODE_GLUE | |
318 | case AFSCALL_INIT_KERNEL_CONFIG: | |
319 | error = afs_init_kernel_config(uap->parm1); | |
320 | break; | |
321 | #endif | |
322 | default: | |
323 | error = | |
324 | afs_syscall_call(uap->syscall, uap->parm1, uap->parm2, uap->parm3, | |
325 | uap->parm4, uap->parm5); | |
326 | } | |
327 | return error; | |
328 | } | |
329 | ||
330 | #else /* AFS_SGI_ENV */ | |
331 | ||
332 | struct iparam { | |
333 | iparmtype param1; | |
334 | iparmtype param2; | |
335 | iparmtype param3; | |
336 | iparmtype param4; | |
337 | }; | |
338 | ||
339 | struct iparam32 { | |
340 | int param1; | |
341 | int param2; | |
342 | int param3; | |
343 | int param4; | |
344 | }; | |
345 | ||
346 | ||
347 | #if defined(AFS_HPUX_64BIT_ENV) || defined(AFS_SUN5_64BIT_ENV) || (defined(AFS_LINUX_64BIT_KERNEL) && !defined(AFS_ALPHA_LINUX20_ENV) && !defined(AFS_IA64_LINUX20_ENV)) || defined(NEED_IOCTL32) | |
348 | static void | |
349 | iparam32_to_iparam(const struct iparam32 *src, struct iparam *dst) | |
350 | { | |
351 | dst->param1 = (iparmtype)(uintptrsz)src->param1; | |
352 | dst->param2 = (iparmtype)(uintptrsz)src->param2; | |
353 | dst->param3 = (iparmtype)(uintptrsz)src->param3; | |
354 | dst->param4 = (iparmtype)(uintptrsz)src->param4; | |
355 | } | |
356 | #endif | |
357 | ||
358 | /* | |
359 | * If you need to change copyin_iparam(), you may also need to change | |
360 | * copyin_afs_ioctl(). | |
361 | * | |
362 | * This function is needed only for icreate, meaning, only on platforms | |
363 | * providing the inode fileserver. | |
364 | */ | |
365 | ||
366 | static int | |
367 | copyin_iparam(caddr_t cmarg, struct iparam *dst) | |
368 | { | |
369 | int code; | |
370 | ||
371 | #if defined(AFS_HPUX_64BIT_ENV) | |
372 | struct iparam32 dst32; | |
373 | ||
374 | if (is_32bit(u.u_procp)) { /* is_32bit() in proc_iface.h */ | |
375 | AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code); | |
376 | if (!code) | |
377 | iparam32_to_iparam(&dst32, dst); | |
378 | return code; | |
379 | } | |
380 | #endif /* AFS_HPUX_64BIT_ENV */ | |
381 | ||
382 | #if defined(AFS_SUN5_64BIT_ENV) | |
383 | struct iparam32 dst32; | |
384 | ||
385 | if (get_udatamodel() == DATAMODEL_ILP32) { | |
386 | AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code); | |
387 | if (!code) | |
388 | iparam32_to_iparam(&dst32, dst); | |
389 | return code; | |
390 | } | |
391 | #endif /* AFS_SUN5_64BIT_ENV */ | |
392 | ||
393 | #if defined(AFS_LINUX_64BIT_KERNEL) && !defined(AFS_ALPHA_LINUX20_ENV) && !defined(AFS_IA64_LINUX20_ENV) | |
394 | struct iparam32 dst32; | |
395 | ||
396 | #ifdef AFS_SPARC64_LINUX26_ENV | |
397 | if (test_thread_flag(TIF_32BIT)) | |
398 | #elif defined(AFS_SPARC64_LINUX24_ENV) | |
399 | if (current->thread.flags & SPARC_FLAG_32BIT) | |
400 | #elif defined(AFS_SPARC64_LINUX20_ENV) | |
401 | if (current->tss.flags & SPARC_FLAG_32BIT) | |
402 | ||
403 | #elif defined(AFS_AMD64_LINUX26_ENV) | |
404 | if (test_thread_flag(TIF_IA32)) | |
405 | #elif defined(AFS_AMD64_LINUX20_ENV) | |
406 | if (current->thread.flags & THREAD_IA32) | |
407 | ||
408 | #elif defined(AFS_PPC64_LINUX26_ENV) | |
409 | #if defined(STRUCT_TASK_STRUCT_HAS_THREAD_INFO) | |
410 | if (current->thread_info->flags & _TIF_32BIT) | |
411 | #else | |
412 | if (task_thread_info(current)->flags & _TIF_32BIT) | |
413 | #endif | |
414 | #elif defined(AFS_PPC64_LINUX20_ENV) | |
415 | if (current->thread.flags & PPC_FLAG_32BIT) | |
416 | ||
417 | #elif defined(AFS_S390X_LINUX26_ENV) | |
418 | if (test_thread_flag(TIF_31BIT)) | |
419 | #elif defined(AFS_S390X_LINUX20_ENV) | |
420 | if (current->thread.flags & S390_FLAG_31BIT) | |
421 | #elif defined(AFS_ARM64_LINUX26_ENV) | |
422 | if (is_compat_task()) | |
423 | ||
424 | #else | |
425 | #error iparam32 not done for this linux platform | |
426 | #endif | |
427 | { | |
428 | AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code); | |
429 | if (!code) | |
430 | iparam32_to_iparam(&dst32, dst); | |
431 | return code; | |
432 | } | |
433 | #endif /* AFS_LINUX_64BIT_KERNEL */ | |
434 | ||
435 | AFS_COPYIN(cmarg, (caddr_t) dst, sizeof *dst, code); | |
436 | return code; | |
437 | } | |
438 | ||
439 | /* Main entry of all afs system calls */ | |
440 | #ifdef AFS_SUN5_ENV | |
441 | extern int afs_sinited; | |
442 | ||
443 | Afs_syscall(struct afssysa *uap, rval_t * rvp) | |
444 | { | |
445 | int *retval = &rvp->r_val1; | |
446 | #elif defined(AFS_DARWIN100_ENV) | |
447 | struct afssysa { | |
448 | afs_int32 syscall; | |
449 | afs_int32 parm1; | |
450 | afs_int32 parm2; | |
451 | afs_int32 parm3; | |
452 | afs_int32 parm4; | |
453 | afs_int32 parm5; | |
454 | afs_int32 parm6; | |
455 | }; | |
456 | struct afssysa64 { | |
457 | afs_int64 parm1; | |
458 | afs_int64 parm2; | |
459 | afs_int64 parm3; | |
460 | afs_int64 parm4; | |
461 | afs_int64 parm5; | |
462 | afs_int64 parm6; | |
463 | afs_int32 syscall; | |
464 | }; | |
465 | int | |
466 | afs3_syscall(afs_proc_t *p, void *args, unsigned int *retval) | |
467 | { | |
468 | struct afssysa64 *uap64 = NULL; | |
469 | struct afssysa *uap = NULL; | |
470 | #elif defined(AFS_FBSD_ENV) | |
471 | int | |
472 | afs3_syscall(struct thread *p, void *args) | |
473 | { | |
474 | struct a { | |
475 | long syscall; | |
476 | long parm1; | |
477 | long parm2; | |
478 | long parm3; | |
479 | long parm4; | |
480 | long parm5; | |
481 | long parm6; | |
482 | } *uap = (struct a *)args; | |
483 | long fbsd_ret = 0; | |
484 | long *retval = &fbsd_ret; | |
485 | #elif defined(AFS_NBSD40_ENV) | |
486 | int | |
487 | afs3_syscall(struct lwp *p, const void *args, register_t *retval) | |
488 | { | |
489 | /* see osi_machdep.h */ | |
490 | struct afs_sysargs *uap = (struct afs_sysargs *) args; | |
491 | #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) | |
492 | int | |
493 | afs3_syscall(afs_proc_t *p, void *args, long *retval) | |
494 | { | |
495 | struct a { | |
496 | long syscall; | |
497 | long parm1; | |
498 | long parm2; | |
499 | long parm3; | |
500 | long parm4; | |
501 | long parm5; | |
502 | long parm6; | |
503 | } *uap = (struct a *)args; | |
504 | #elif defined(AFS_LINUX20_ENV) | |
505 | struct afssysargs { | |
506 | long syscall; | |
507 | long parm1; | |
508 | long parm2; | |
509 | long parm3; | |
510 | long parm4; | |
511 | long parm5; | |
512 | long parm6; /* not actually used - should be removed */ | |
513 | }; | |
514 | /* Linux system calls only set up for 5 arguments. */ | |
515 | asmlinkage long | |
516 | afs_syscall(long syscall, long parm1, long parm2, long parm3, long parm4) | |
517 | { | |
518 | struct afssysargs args, *uap = &args; | |
519 | long linux_ret = 0; | |
520 | long *retval = &linux_ret; | |
521 | long eparm[4]; /* matches AFSCALL_ICL in fstrace.c */ | |
522 | # ifdef AFS_SPARC64_LINUX24_ENV | |
523 | afs_int32 eparm32[4]; | |
524 | # endif | |
525 | /* eparm is also used by AFSCALL_CALL in afsd.c */ | |
526 | #else | |
527 | # if defined(UKERNEL) | |
528 | int | |
529 | Afs_syscall(void) | |
530 | { | |
531 | struct a { | |
532 | long syscall; | |
533 | long parm1; | |
534 | long parm2; | |
535 | long parm3; | |
536 | long parm4; | |
537 | long parm5; | |
538 | long parm6; | |
539 | } *uap = (struct a *)get_user_struct()->u_ap; | |
540 | # else /* UKERNEL */ | |
541 | int | |
542 | Afs_syscall() | |
543 | { | |
544 | struct a { | |
545 | long syscall; | |
546 | long parm1; | |
547 | long parm2; | |
548 | long parm3; | |
549 | long parm4; | |
550 | long parm5; | |
551 | long parm6; | |
552 | } *uap = (struct a *)u.u_ap; | |
553 | # endif /* UKERNEL */ | |
554 | # if defined(AFS_HPUX_ENV) | |
555 | long *retval = &u.u_rval1; | |
556 | # elif defined(UKERNEL) | |
557 | int *retval = &(get_user_struct()->u_rval1); | |
558 | # else | |
559 | int *retval = &u.u_rval1; | |
560 | # endif | |
561 | #endif | |
562 | int code = 0; | |
563 | ||
564 | AFS_STATCNT(afs_syscall); | |
565 | #ifdef AFS_SUN5_ENV | |
566 | rvp->r_vals = 0; | |
567 | if (!afs_sinited) { | |
568 | return (ENODEV); | |
569 | } | |
570 | #endif | |
571 | #ifdef AFS_LINUX20_ENV | |
572 | /* setup uap for use below - pull out the magic decoder ring to know | |
573 | * which syscalls have folded argument lists. | |
574 | */ | |
575 | uap->syscall = syscall; | |
576 | uap->parm1 = parm1; | |
577 | uap->parm2 = parm2; | |
578 | uap->parm3 = parm3; | |
579 | if (syscall == AFSCALL_ICL || syscall == AFSCALL_CALL) { | |
580 | #ifdef AFS_SPARC64_LINUX24_ENV | |
581 | /* from arch/sparc64/kernel/sys_sparc32.c */ | |
582 | #define AA(__x) \ | |
583 | ({ unsigned long __ret; \ | |
584 | __asm__ ("srl %0, 0, %0" \ | |
585 | : "=r" (__ret) \ | |
586 | : "0" (__x)); \ | |
587 | __ret; \ | |
588 | }) | |
589 | ||
590 | ||
591 | #ifdef AFS_SPARC64_LINUX26_ENV | |
592 | if (test_thread_flag(TIF_32BIT)) | |
593 | #else | |
594 | if (current->thread.flags & SPARC_FLAG_32BIT) | |
595 | #endif | |
596 | { | |
597 | AFS_COPYIN((char *)parm4, (char *)eparm32, sizeof(eparm32), code); | |
598 | eparm[0] = AA(eparm32[0]); | |
599 | eparm[1] = AA(eparm32[1]); | |
600 | eparm[2] = AA(eparm32[2]); | |
601 | #undef AA | |
602 | } else | |
603 | #endif | |
604 | AFS_COPYIN((char *)parm4, (char *)eparm, sizeof(eparm), code); | |
605 | uap->parm4 = eparm[0]; | |
606 | uap->parm5 = eparm[1]; | |
607 | uap->parm6 = eparm[2]; | |
608 | } else { | |
609 | uap->parm4 = parm4; | |
610 | uap->parm5 = 0; | |
611 | uap->parm6 = 0; | |
612 | } | |
613 | #endif | |
614 | #if defined(AFS_DARWIN80_ENV) | |
615 | get_vfs_context(); | |
616 | osi_Assert(*retval == 0); | |
617 | #ifdef AFS_DARWIN100_ENV | |
618 | if (proc_is64bit(p)) { | |
619 | uap64 = (struct afssysa64 *)args; | |
620 | if (uap64->syscall == AFSCALL_CALL) { | |
621 | code = | |
622 | afs_syscall64_call(uap64->parm1, uap64->parm2, uap64->parm3, | |
623 | uap64->parm4, uap64->parm5, uap64->parm6); | |
624 | /* pass back the code as syscall retval */ | |
625 | if (code < 0) { | |
626 | *retval = code; | |
627 | code = 0; | |
628 | } | |
629 | } else if (uap64->syscall == AFSCALL_SETPAG) { | |
630 | AFS_GLOCK(); | |
631 | code = afs_setpag(p, args, retval); | |
632 | AFS_GUNLOCK(); | |
633 | } else if (uap64->syscall == AFSCALL_PIOCTL) { | |
634 | AFS_GLOCK(); | |
635 | code = | |
636 | afs_syscall64_pioctl(uap64->parm1, (unsigned int)uap64->parm2, | |
637 | uap64->parm3, (int)uap64->parm4, | |
638 | kauth_cred_get()); | |
639 | AFS_GUNLOCK(); | |
640 | } else if (uap64->syscall == AFSCALL_ICL) { | |
641 | AFS_GLOCK(); | |
642 | code = | |
643 | Afscall64_icl(uap64->parm1, uap64->parm2, uap64->parm3, | |
644 | uap64->parm4, uap64->parm5, retval); | |
645 | AFS_GUNLOCK(); | |
646 | } else | |
647 | code = EINVAL; | |
648 | if (uap64->syscall != AFSCALL_CALL) | |
649 | put_vfs_context(); | |
650 | } else { /* and the default case for 32 bit procs */ | |
651 | #endif | |
652 | uap = (struct afssysa *)args; | |
653 | #endif | |
654 | #if defined(AFS_HPUX_ENV) | |
655 | /* | |
656 | * There used to be code here (duplicated from osi_Init()) for | |
657 | * initializing the semaphore used by AFS_GLOCK(). Was the | |
658 | * duplication to handle the case of a dynamically loaded kernel | |
659 | * module? | |
660 | */ | |
661 | osi_InitGlock(); | |
662 | #endif | |
663 | ||
664 | #if defined(AFS_NBSD40_ENV) | |
665 | if (SCARG(uap, syscall) == AFSCALL_CALL) { | |
666 | code = | |
667 | afs_syscall_call(SCARG(uap, parm1), SCARG(uap, parm2), | |
668 | SCARG(uap, parm3), SCARG(uap, parm4), | |
669 | SCARG(uap, parm5), SCARG(uap, parm6)); | |
670 | } else if (SCARG(uap, syscall) == AFSCALL_SETPAG) { | |
671 | #else | |
672 | if (uap->syscall == AFSCALL_CALL) { | |
673 | code = | |
674 | afs_syscall_call(uap->parm1, uap->parm2, uap->parm3, | |
675 | uap->parm4, uap->parm5, uap->parm6); | |
676 | #ifdef AFS_DARWIN_ENV | |
677 | /* pass back the code as syscall retval */ | |
678 | if (code < 0) { | |
679 | *retval = code; | |
680 | code = 0; | |
681 | } | |
682 | #endif | |
683 | } else if (uap->syscall == AFSCALL_SETPAG) { | |
684 | #endif | |
685 | #ifdef AFS_SUN5_ENV | |
686 | proc_t *procp; | |
687 | ||
688 | procp = ttoproc(curthread); | |
689 | AFS_GLOCK(); | |
690 | code = afs_setpag(&procp->p_cred); | |
691 | AFS_GUNLOCK(); | |
692 | #else | |
693 | AFS_GLOCK(); | |
694 | #if defined(AFS_FBSD_ENV) | |
695 | code = afs_setpag(p, args); | |
696 | #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) | |
697 | code = afs_setpag(p, args, retval); | |
698 | #else /* AFS_DARWIN_ENV || AFS_XBSD_ENV */ | |
699 | code = afs_setpag(); | |
700 | #endif | |
701 | AFS_GUNLOCK(); | |
702 | #endif | |
703 | } else if | |
704 | #if defined(AFS_NBSD40_ENV) | |
705 | (SCARG(uap, syscall) == AFSCALL_PIOCTL) { | |
706 | #else | |
707 | (uap->syscall == AFSCALL_PIOCTL) { | |
708 | #endif | |
709 | AFS_GLOCK(); | |
710 | #if defined(AFS_SUN5_ENV) | |
711 | code = | |
712 | afs_syscall_pioctl(uap->parm1, uap->parm2, uap->parm3, | |
713 | uap->parm4, rvp, CRED()); | |
714 | #elif defined(AFS_FBSD_ENV) | |
715 | code = | |
716 | afs_syscall_pioctl((void *)uap->parm1, uap->parm2, (void *)uap->parm3, | |
717 | uap->parm4, p->td_ucred); | |
718 | #elif defined(AFS_DARWIN80_ENV) | |
719 | code = | |
720 | afs_syscall_pioctl(uap->parm1, uap->parm2, uap->parm3, | |
721 | uap->parm4, kauth_cred_get()); | |
722 | #elif defined(AFS_NBSD40_ENV) | |
723 | code = | |
724 | afs_syscall_pioctl((char *)SCARG(uap, parm1), SCARG(uap, parm2), | |
725 | (void *)SCARG(uap, parm3), SCARG(uap, parm4), | |
726 | kauth_cred_get()); | |
727 | #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) | |
728 | code = | |
729 | afs_syscall_pioctl(uap->parm1, uap->parm2, uap->parm3, | |
730 | uap->parm4, p->p_cred->pc_ucred); | |
731 | #else | |
732 | code = | |
733 | afs_syscall_pioctl((char *)uap->parm1, | |
734 | (unsigned int)uap->parm2, | |
735 | (caddr_t)uap->parm3, | |
736 | (int) uap->parm4); | |
737 | #endif | |
738 | AFS_GUNLOCK(); | |
739 | ||
740 | #ifdef AFS_NBSD40_ENV | |
741 | } else if (SCARG(uap, syscall) == AFSCALL_ICREATE) { | |
742 | struct iparam iparams; | |
743 | code = copyin_iparam((char *) SCARG(uap, parm3), &iparams); | |
744 | #else | |
745 | } else if (uap->syscall == AFSCALL_ICREATE) { | |
746 | struct iparam iparams; | |
747 | ||
748 | code = copyin_iparam((char *)uap->parm3, &iparams); | |
749 | #endif | |
750 | if (code) { | |
751 | #if defined(KERNEL_HAVE_UERROR) | |
752 | setuerror(code); | |
753 | #endif | |
754 | } else { | |
755 | #if defined(AFS_SUN5_ENV) | |
756 | code = | |
757 | afs_syscall_icreate(uap->parm1, uap->parm2, iparams.param1, | |
758 | iparams.param2, iparams.param3, | |
759 | iparams.param4, rvp, CRED()); | |
760 | #elif defined(AFS_NBSD40_ENV) | |
761 | code = | |
762 | afs_syscall_icreate(SCARG(uap, parm1), SCARG(uap, parm2), | |
763 | iparams.param1, iparams.param2, iparams.param3, | |
764 | iparams.param4, retval | |
765 | ); | |
766 | #else | |
767 | code = | |
768 | afs_syscall_icreate(uap->parm1, uap->parm2, iparams.param1, | |
769 | iparams.param2, iparams.param3, | |
770 | iparams.param4 | |
771 | #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) | |
772 | , retval | |
773 | #endif | |
774 | ); | |
775 | #endif /* AFS_SUN5_ENV */ | |
776 | } | |
777 | #if defined(AFS_NBSD40_ENV) | |
778 | } else if (SCARG(uap, syscall) == AFSCALL_IOPEN) { | |
779 | #else | |
780 | } else if (uap->syscall == AFSCALL_IOPEN) { | |
781 | #endif /* !AFS_NBSD40_ENV */ | |
782 | #if defined(AFS_SUN5_ENV) | |
783 | code = | |
784 | afs_syscall_iopen(uap->parm1, uap->parm2, uap->parm3, rvp, | |
785 | CRED()); | |
786 | #elif defined(AFS_NBSD40_ENV) | |
787 | code = afs_syscall_iopen(SCARG(uap, parm1), SCARG(uap, parm2), | |
788 | SCARG(uap, parm3), retval); | |
789 | #else | |
790 | code = afs_syscall_iopen(uap->parm1, uap->parm2, uap->parm3 | |
791 | #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) | |
792 | , retval | |
793 | #endif | |
794 | ); | |
795 | #endif /* AFS_SUN5_ENV */ | |
796 | #if defined(AFS_NBSD40_ENV) | |
797 | } else if (SCARG(uap, syscall) == AFSCALL_IDEC) { | |
798 | #else | |
799 | } else if (uap->syscall == AFSCALL_IDEC) { | |
800 | #endif | |
801 | #if defined(AFS_NBSD40_ENV) | |
802 | code = afs_syscall_iincdec(SCARG(uap, parm1), SCARG(uap, parm2), | |
803 | SCARG(uap, parm3), -1); | |
804 | #else | |
805 | ||
806 | ||
807 | code = | |
808 | afs_syscall_iincdec(uap->parm1, uap->parm2, uap->parm3, -1 | |
809 | #if defined(AFS_SUN5_ENV) | |
810 | , rvp, CRED() | |
811 | #endif | |
812 | ); | |
813 | ||
814 | #endif /* !AFS_NBSD40_ENV */ | |
815 | #if defined(AFS_NBSD40_ENV) | |
816 | } else if (SCARG(uap, syscall) == AFSCALL_IINC) { | |
817 | #else | |
818 | } else if (uap->syscall == AFSCALL_IINC) { | |
819 | #endif | |
820 | #if defined(AFS_NBSD40_ENV) | |
821 | code = afs_syscall_iincdec(SCARG(uap, parm1), SCARG(uap, parm2), | |
822 | SCARG(uap, parm3), 1); | |
823 | #else | |
824 | code = | |
825 | afs_syscall_iincdec(uap->parm1, uap->parm2, uap->parm3, 1 | |
826 | #ifdef AFS_SUN5_ENV | |
827 | , rvp, CRED() | |
828 | #endif | |
829 | ); | |
830 | #endif /* !AFS_NBSD40_ENV */ | |
831 | #if defined(AFS_NBSD40_ENV) | |
832 | } else if (SCARG(uap, syscall) == AFSCALL_ICL) { | |
833 | #else | |
834 | } else if (uap->syscall == AFSCALL_ICL) { | |
835 | #endif | |
836 | AFS_GLOCK(); | |
837 | code = | |
838 | #if defined(AFS_NBSD40_ENV) | |
839 | Afscall_icl(SCARG(uap, parm1), SCARG(uap, parm2), | |
840 | SCARG(uap, parm3), SCARG(uap, parm4), | |
841 | SCARG(uap, parm5), retval); | |
842 | #else | |
843 | Afscall_icl(uap->parm1, uap->parm2, uap->parm3, uap->parm4, | |
844 | uap->parm5, (long *)retval); | |
845 | #endif /* !AFS_NBSD40_ENV */ | |
846 | AFS_GUNLOCK(); | |
847 | #ifdef AFS_LINUX20_ENV | |
848 | if (!code) { | |
849 | /* ICL commands can return values. */ | |
850 | code = -linux_ret; /* Gets negated again at exit below */ | |
851 | } | |
852 | #else | |
853 | if (code) { | |
854 | #if defined(KERNEL_HAVE_UERROR) | |
855 | setuerror(code); | |
856 | #endif | |
857 | } | |
858 | #endif /* !AFS_LINUX20_ENV */ | |
859 | } else { | |
860 | #if defined(KERNEL_HAVE_UERROR) | |
861 | setuerror(EINVAL); | |
862 | #else | |
863 | code = EINVAL; | |
864 | #endif | |
865 | } | |
866 | #if defined(AFS_DARWIN80_ENV) | |
867 | if (uap->syscall != AFSCALL_CALL) | |
868 | put_vfs_context(); | |
869 | #ifdef AFS_DARWIN100_ENV | |
870 | } /* 32 bit procs */ | |
871 | #endif | |
872 | #endif | |
873 | #ifdef AFS_LINUX20_ENV | |
874 | code = -code; | |
875 | #endif | |
876 | return code; | |
877 | } | |
878 | #endif /* AFS_SGI_ENV */ | |
879 | #endif /* !AFS_AIX32_ENV */ |