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
10 #include <afsconfig.h>
11 #include "afs/param.h"
13 #ifdef IGNORE_SOME_GCC_WARNINGS
14 # pragma GCC diagnostic warning "-Wold-style-definition"
15 # pragma GCC diagnostic warning "-Wstrict-prototypes"
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)
25 #include "h/hashing.h"
27 #if !defined(AFS_HPUX110_ENV) && !defined(AFS_DARWIN_ENV)
28 #include "netinet/in_var.h"
30 #endif /* !defined(UKERNEL) */
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)
34 afs_ioctl32_to_afs_ioctl(const struct afs_ioctl32 *src, struct afs_ioctl *dst)
36 #ifdef AFS_DARWIN100_ENV
37 dst->in = CAST_USER_ADDR_T(src->in);
38 dst->out = CAST_USER_ADDR_T(src->out);
40 dst->in = (char *)(unsigned long)src->in;
41 dst->out = (char *)(unsigned long)src->out;
43 dst->in_size = src->in_size;
44 dst->out_size = src->out_size;
49 * If you need to change copyin_afs_ioctl(), you may also need to change
54 #ifdef AFS_DARWIN100_ENV
55 copyin_afs_ioctl(user_addr_t cmarg, struct afs_ioctl *dst)
57 copyin_afs_ioctl(caddr_t cmarg, struct afs_ioctl *dst)
61 #if defined(AFS_DARWIN100_ENV)
62 struct afs_ioctl32 dst32;
64 if (!proc_is64bit(current_proc())) {
65 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
67 afs_ioctl32_to_afs_ioctl(&dst32, dst);
71 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
72 struct afs_ioctl32 dst32;
75 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
77 afs_ioctl32_to_afs_ioctl(&dst32, dst);
80 #endif /* defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL) */
83 #if defined(AFS_HPUX_64BIT_ENV)
84 struct afs_ioctl32 dst32;
86 if (is_32bit(u.u_procp)) { /* is_32bit() in proc_iface.h */
87 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
89 afs_ioctl32_to_afs_ioctl(&dst32, dst);
92 #endif /* defined(AFS_HPUX_64BIT_ENV) */
94 #if defined(AFS_SUN5_64BIT_ENV)
95 struct afs_ioctl32 dst32;
97 if (get_udatamodel() == DATAMODEL_ILP32) {
98 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
100 afs_ioctl32_to_afs_ioctl(&dst32, dst);
103 #endif /* defined(AFS_SUN5_64BIT_ENV) */
105 #if defined(AFS_SGI_ENV) && (_MIPS_SZLONG==64)
106 struct afs_ioctl32 dst32;
108 if (!ABI_IS_64BIT(get_current_abi())) {
109 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
111 afs_ioctl32_to_afs_ioctl(&dst32, dst);
114 #endif /* defined(AFS_SGI_ENV) && (_MIPS_SZLONG==64) */
116 #if defined(AFS_LINUX_64BIT_KERNEL) && !defined(AFS_ALPHA_LINUX20_ENV) && !defined(AFS_IA64_LINUX20_ENV)
117 struct afs_ioctl32 dst32;
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)
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)
131 #elif defined(AFS_PPC64_LINUX26_ENV)
132 #if defined(STRUCT_TASK_STRUCT_HAS_THREAD_INFO)
133 if (current->thread_info->flags & _TIF_32BIT)
135 if (task_thread_info(current)->flags & _TIF_32BIT)
137 #elif defined(AFS_PPC64_LINUX20_ENV)
138 if (current->thread.flags & PPC_FLAG_32BIT)
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)
146 #error pioctl32 not done for this linux
149 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
151 afs_ioctl32_to_afs_ioctl(&dst32, dst);
154 #endif /* defined(AFS_LINUX_64BIT_KERNEL) */
156 AFS_COPYIN(cmarg, (caddr_t) dst, sizeof *dst, code);
163 #include "sys/lockl.h"
166 * syscall - this is the VRMIX system call entry point.
169 * THIS SHOULD BE CHANGED TO afs_syscall(), but requires
170 * all the user-level calls to `syscall' to change.
172 syscall(syscall, p1, p2, p3, p4, p5, p6)
177 #ifndef AFS_AIX41_ENV
178 extern lock_t kernel_lock;
179 monster = lockl(&kernel_lock, LOCK_SHORT);
180 #endif /* !AFS_AIX41_ENV */
182 AFS_STATCNT(syscall);
186 rval1 = afs_syscall_call(p1, p2, p3, p4, p5, p6);
191 rval1 = afs_setpag();
197 rval1 = afs_syscall_pioctl(p1, p2, p3, p4);
201 case AFSCALL_ICREATE:
202 rval1 = afs_syscall_icreate(p1, p2, p3, p4, p5, p6);
206 rval1 = afs_syscall_iopen(p1, p2, p3);
210 rval1 = afs_syscall_iincdec(p1, p2, p3, -1);
214 rval1 = afs_syscall_iincdec(p1, p2, p3, 1);
219 code = Afscall_icl(p1, p2, p3, p4, p5, &retval);
234 #ifndef AFS_AIX41_ENV
235 if (monster != LOCK_NEST)
236 unlockl(&kernel_lock);
237 #endif /* !AFS_AIX41_ENV */
238 return getuerror()? -1 : rval1;
242 * lsetpag - interface to afs_setpag().
248 AFS_STATCNT(lsetpag);
249 return syscall(AFSCALL_SETPAG, 0, 0, 0, 0, 0);
253 * lpioctl - interface to pioctl()
256 lpioctl(char *path, int cmd, void *cmarg, int follow)
259 AFS_STATCNT(lpioctl);
260 return syscall(AFSCALL_PIOCTL, path, cmd, cmarg, follow);
263 #else /* !AFS_AIX32_ENV */
265 #if defined(AFS_SGI_ENV)
277 Afs_syscall(struct afsargs *uap, rval_t * rvp)
282 AFS_STATCNT(afs_syscall);
283 switch (uap->syscall) {
288 Afscall_icl(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
289 uap->parm5, &retval);
291 rvp->r_val1 = retval;
293 #ifdef AFS_SGI_XFS_IOPS_ENV
296 afs_syscall_idec64(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
301 afs_syscall_iinc64(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
304 case AFSCALL_ILISTINODE64:
306 afs_syscall_ilistinode64(uap->parm1, uap->parm2, uap->parm3,
307 uap->parm4, uap->parm5);
309 case AFSCALL_ICREATENAME64:
311 afs_syscall_icreatename64(uap->parm1, uap->parm2, uap->parm3,
312 uap->parm4, uap->parm5);
315 #ifdef AFS_SGI_VNODE_GLUE
316 case AFSCALL_INIT_KERNEL_CONFIG:
317 error = afs_init_kernel_config(uap->parm1);
322 afs_syscall_call(uap->syscall, uap->parm1, uap->parm2, uap->parm3,
323 uap->parm4, uap->parm5);
328 #else /* AFS_SGI_ENV */
345 #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)
347 iparam32_to_iparam(const struct iparam32 *src, struct iparam *dst)
349 dst->param1 = (iparmtype)(uintptrsz)src->param1;
350 dst->param2 = (iparmtype)(uintptrsz)src->param2;
351 dst->param3 = (iparmtype)(uintptrsz)src->param3;
352 dst->param4 = (iparmtype)(uintptrsz)src->param4;
357 * If you need to change copyin_iparam(), you may also need to change
358 * copyin_afs_ioctl().
360 * This function is needed only for icreate, meaning, only on platforms
361 * providing the inode fileserver.
365 copyin_iparam(caddr_t cmarg, struct iparam *dst)
369 #if defined(AFS_HPUX_64BIT_ENV)
370 struct iparam32 dst32;
372 if (is_32bit(u.u_procp)) { /* is_32bit() in proc_iface.h */
373 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
375 iparam32_to_iparam(&dst32, dst);
378 #endif /* AFS_HPUX_64BIT_ENV */
380 #if defined(AFS_SUN5_64BIT_ENV)
381 struct iparam32 dst32;
383 if (get_udatamodel() == DATAMODEL_ILP32) {
384 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
386 iparam32_to_iparam(&dst32, dst);
389 #endif /* AFS_SUN5_64BIT_ENV */
391 #if defined(AFS_LINUX_64BIT_KERNEL) && !defined(AFS_ALPHA_LINUX20_ENV) && !defined(AFS_IA64_LINUX20_ENV)
392 struct iparam32 dst32;
394 #ifdef AFS_SPARC64_LINUX26_ENV
395 if (test_thread_flag(TIF_32BIT))
396 #elif defined(AFS_SPARC64_LINUX24_ENV)
397 if (current->thread.flags & SPARC_FLAG_32BIT)
398 #elif defined(AFS_SPARC64_LINUX20_ENV)
399 if (current->tss.flags & SPARC_FLAG_32BIT)
401 #elif defined(AFS_AMD64_LINUX26_ENV)
402 if (test_thread_flag(TIF_IA32))
403 #elif defined(AFS_AMD64_LINUX20_ENV)
404 if (current->thread.flags & THREAD_IA32)
406 #elif defined(AFS_PPC64_LINUX26_ENV)
407 #if defined(STRUCT_TASK_STRUCT_HAS_THREAD_INFO)
408 if (current->thread_info->flags & _TIF_32BIT)
410 if (task_thread_info(current)->flags & _TIF_32BIT)
412 #elif defined(AFS_PPC64_LINUX20_ENV)
413 if (current->thread.flags & PPC_FLAG_32BIT)
415 #elif defined(AFS_S390X_LINUX26_ENV)
416 if (test_thread_flag(TIF_31BIT))
417 #elif defined(AFS_S390X_LINUX20_ENV)
418 if (current->thread.flags & S390_FLAG_31BIT)
421 #error iparam32 not done for this linux platform
424 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
426 iparam32_to_iparam(&dst32, dst);
429 #endif /* AFS_LINUX_64BIT_KERNEL */
431 AFS_COPYIN(cmarg, (caddr_t) dst, sizeof *dst, code);
435 /* Main entry of all afs system calls */
437 extern int afs_sinited;
439 Afs_syscall(struct afssysa *uap, rval_t * rvp)
441 int *retval = &rvp->r_val1;
442 #elif defined(AFS_DARWIN100_ENV)
462 afs3_syscall(afs_proc_t *p, void *args, unsigned int *retval)
464 struct afssysa64 *uap64 = NULL;
465 struct afssysa *uap = NULL;
466 #elif defined(AFS_FBSD_ENV)
468 afs3_syscall(struct thread *p, void *args)
478 } *uap = (struct a *)args;
480 #elif defined(AFS_NBSD40_ENV)
482 afs3_syscall(struct lwp *p, const void *args, register_t *retval)
484 /* see osi_machdep.h */
485 struct afs_sysargs *uap = (struct afs_sysargs *) args;
486 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
488 afs3_syscall(afs_proc_t *p, void *args, long *retval)
498 } *uap = (struct a *)args;
499 #elif defined(AFS_LINUX20_ENV)
507 long parm6; /* not actually used - should be removed */
509 /* Linux system calls only set up for 5 arguments. */
511 afs_syscall(long syscall, long parm1, long parm2, long parm3, long parm4)
513 struct afssysargs args, *uap = &args;
515 long *retval = &linux_ret;
516 long eparm[4]; /* matches AFSCALL_ICL in fstrace.c */
517 # ifdef AFS_SPARC64_LINUX24_ENV
518 afs_int32 eparm32[4];
520 /* eparm is also used by AFSCALL_CALL in afsd.c */
522 # if defined(UKERNEL)
534 } *uap = (struct a *)get_user_struct()->u_ap;
547 } *uap = (struct a *)u.u_ap;
548 # endif /* UKERNEL */
549 # if defined(AFS_HPUX_ENV)
550 long *retval = &u.u_rval1;
551 # elif defined(UKERNEL)
552 int *retval = &(get_user_struct()->u_rval1);
554 int *retval = &u.u_rval1;
559 AFS_STATCNT(afs_syscall);
566 #ifdef AFS_LINUX20_ENV
567 /* setup uap for use below - pull out the magic decoder ring to know
568 * which syscalls have folded argument lists.
570 uap->syscall = syscall;
574 if (syscall == AFSCALL_ICL || syscall == AFSCALL_CALL) {
575 #ifdef AFS_SPARC64_LINUX24_ENV
576 /* from arch/sparc64/kernel/sys_sparc32.c */
578 ({ unsigned long __ret; \
579 __asm__ ("srl %0, 0, %0" \
586 #ifdef AFS_SPARC64_LINUX26_ENV
587 if (test_thread_flag(TIF_32BIT))
589 if (current->thread.flags & SPARC_FLAG_32BIT)
592 AFS_COPYIN((char *)parm4, (char *)eparm32, sizeof(eparm32), code);
593 eparm[0] = AA(eparm32[0]);
594 eparm[1] = AA(eparm32[1]);
595 eparm[2] = AA(eparm32[2]);
599 AFS_COPYIN((char *)parm4, (char *)eparm, sizeof(eparm), code);
600 uap->parm4 = eparm[0];
601 uap->parm5 = eparm[1];
602 uap->parm6 = eparm[2];
609 #if defined(AFS_DARWIN80_ENV)
611 osi_Assert(*retval == 0);
612 #ifdef AFS_DARWIN100_ENV
613 if (proc_is64bit(p)) {
614 uap64 = (struct afssysa64 *)args;
615 if (uap64->syscall == AFSCALL_CALL) {
617 afs_syscall64_call(uap64->parm1, uap64->parm2, uap64->parm3,
618 uap64->parm4, uap64->parm5, uap64->parm6);
619 /* pass back the code as syscall retval */
624 } else if (uap64->syscall == AFSCALL_SETPAG) {
626 code = afs_setpag(p, args, retval);
628 } else if (uap64->syscall == AFSCALL_PIOCTL) {
631 afs_syscall64_pioctl(uap64->parm1, (unsigned int)uap64->parm2,
632 uap64->parm3, (int)uap64->parm4,
635 } else if (uap64->syscall == AFSCALL_ICL) {
638 Afscall64_icl(uap64->parm1, uap64->parm2, uap64->parm3,
639 uap64->parm4, uap64->parm5, retval);
643 if (uap64->syscall != AFSCALL_CALL)
645 } else { /* and the default case for 32 bit procs */
647 uap = (struct afssysa *)args;
649 #if defined(AFS_HPUX_ENV)
651 * There used to be code here (duplicated from osi_Init()) for
652 * initializing the semaphore used by AFS_GLOCK(). Was the
653 * duplication to handle the case of a dynamically loaded kernel
659 #if defined(AFS_NBSD40_ENV)
660 if (SCARG(uap, syscall) == AFSCALL_CALL) {
662 afs_syscall_call(SCARG(uap, parm1), SCARG(uap, parm2),
663 SCARG(uap, parm3), SCARG(uap, parm4),
664 SCARG(uap, parm5), SCARG(uap, parm6));
665 } else if (SCARG(uap, syscall) == AFSCALL_SETPAG) {
667 if (uap->syscall == AFSCALL_CALL) {
669 afs_syscall_call(uap->parm1, uap->parm2, uap->parm3,
670 uap->parm4, uap->parm5, uap->parm6);
671 #ifdef AFS_DARWIN_ENV
672 /* pass back the code as syscall retval */
678 } else if (uap->syscall == AFSCALL_SETPAG) {
683 procp = ttoproc(curthread);
685 code = afs_setpag(&procp->p_cred);
689 #if defined(AFS_FBSD_ENV)
690 code = afs_setpag(p, args);
691 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
692 code = afs_setpag(p, args, retval);
693 #else /* AFS_DARWIN_ENV || AFS_XBSD_ENV */
699 #if defined(AFS_NBSD40_ENV)
700 (SCARG(uap, syscall) == AFSCALL_PIOCTL) {
702 (uap->syscall == AFSCALL_PIOCTL) {
705 #if defined(AFS_SUN5_ENV)
707 afs_syscall_pioctl(uap->parm1, uap->parm2, uap->parm3,
708 uap->parm4, rvp, CRED());
709 #elif defined(AFS_FBSD_ENV)
711 afs_syscall_pioctl((void *)uap->parm1, uap->parm2, (void *)uap->parm3,
712 uap->parm4, p->td_ucred);
713 #elif defined(AFS_DARWIN80_ENV)
715 afs_syscall_pioctl(uap->parm1, uap->parm2, uap->parm3,
716 uap->parm4, kauth_cred_get());
717 #elif defined(AFS_NBSD40_ENV)
719 afs_syscall_pioctl((char *)SCARG(uap, parm1), SCARG(uap, parm2),
720 (void *)SCARG(uap, parm3), SCARG(uap, parm4),
722 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
724 afs_syscall_pioctl(uap->parm1, uap->parm2, uap->parm3,
725 uap->parm4, p->p_cred->pc_ucred);
728 afs_syscall_pioctl((char *)uap->parm1,
729 (unsigned int)uap->parm2,
735 #ifdef AFS_NBSD40_ENV
736 } else if (SCARG(uap, syscall) == AFSCALL_ICREATE) {
737 struct iparam iparams;
738 code = copyin_iparam((char *) SCARG(uap, parm3), &iparams);
740 } else if (uap->syscall == AFSCALL_ICREATE) {
741 struct iparam iparams;
743 code = copyin_iparam((char *)uap->parm3, &iparams);
746 #if defined(KERNEL_HAVE_UERROR)
750 #if defined(AFS_SUN5_ENV)
752 afs_syscall_icreate(uap->parm1, uap->parm2, iparams.param1,
753 iparams.param2, iparams.param3,
754 iparams.param4, rvp, CRED());
755 #elif defined(AFS_NBSD40_ENV)
757 afs_syscall_icreate(SCARG(uap, parm1), SCARG(uap, parm2),
758 iparams.param1, iparams.param2, iparams.param3,
759 iparams.param4, retval
763 afs_syscall_icreate(uap->parm1, uap->parm2, iparams.param1,
764 iparams.param2, iparams.param3,
766 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
770 #endif /* AFS_SUN5_ENV */
772 #if defined(AFS_NBSD40_ENV)
773 } else if (SCARG(uap, syscall) == AFSCALL_IOPEN) {
775 } else if (uap->syscall == AFSCALL_IOPEN) {
776 #endif /* !AFS_NBSD40_ENV */
777 #if defined(AFS_SUN5_ENV)
779 afs_syscall_iopen(uap->parm1, uap->parm2, uap->parm3, rvp,
781 #elif defined(AFS_NBSD40_ENV)
782 code = afs_syscall_iopen(SCARG(uap, parm1), SCARG(uap, parm2),
783 SCARG(uap, parm3), retval);
785 code = afs_syscall_iopen(uap->parm1, uap->parm2, uap->parm3
786 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
790 #endif /* AFS_SUN5_ENV */
791 #if defined(AFS_NBSD40_ENV)
792 } else if (SCARG(uap, syscall) == AFSCALL_IDEC) {
794 } else if (uap->syscall == AFSCALL_IDEC) {
796 #if defined(AFS_NBSD40_ENV)
797 code = afs_syscall_iincdec(SCARG(uap, parm1), SCARG(uap, parm2),
798 SCARG(uap, parm3), -1);
803 afs_syscall_iincdec(uap->parm1, uap->parm2, uap->parm3, -1
804 #if defined(AFS_SUN5_ENV)
809 #endif /* !AFS_NBSD40_ENV */
810 #if defined(AFS_NBSD40_ENV)
811 } else if (SCARG(uap, syscall) == AFSCALL_IINC) {
813 } else if (uap->syscall == AFSCALL_IINC) {
815 #if defined(AFS_NBSD40_ENV)
816 code = afs_syscall_iincdec(SCARG(uap, parm1), SCARG(uap, parm2),
817 SCARG(uap, parm3), 1);
820 afs_syscall_iincdec(uap->parm1, uap->parm2, uap->parm3, 1
825 #endif /* !AFS_NBSD40_ENV */
826 #if defined(AFS_NBSD40_ENV)
827 } else if (SCARG(uap, syscall) == AFSCALL_ICL) {
829 } else if (uap->syscall == AFSCALL_ICL) {
833 #if defined(AFS_NBSD40_ENV)
834 Afscall_icl(SCARG(uap, parm1), SCARG(uap, parm2),
835 SCARG(uap, parm3), SCARG(uap, parm4),
836 SCARG(uap, parm5), retval);
838 Afscall_icl(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
839 uap->parm5, (long *)retval);
840 #endif /* !AFS_NBSD40_ENV */
842 #ifdef AFS_LINUX20_ENV
844 /* ICL commands can return values. */
845 code = -linux_ret; /* Gets negated again at exit below */
849 #if defined(KERNEL_HAVE_UERROR)
853 #endif /* !AFS_LINUX20_ENV */
855 #if defined(KERNEL_HAVE_UERROR)
861 #if defined(AFS_DARWIN80_ENV)
862 if (uap->syscall != AFSCALL_CALL)
864 #ifdef AFS_DARWIN100_ENV
868 #ifdef AFS_LINUX20_ENV
873 #endif /* AFS_SGI_ENV */
874 #endif /* !AFS_AIX32_ENV */