2 * Copyrigh 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"
14 #include "afs/sysincludes.h" /* Standard vendor system headers */
15 #include "afsincludes.h" /* Afs-based standard headers */
16 #include "afs/afs_stats.h" /* afs statistics */
18 #include <sys/adspace.h> /* for vm_att(), vm_det() */
21 /* osi_Init -- do once per kernel installation initialization.
22 * -- On Solaris this is called from modload initialization.
23 * -- On AIX called from afs_config.
24 * -- On HP called from afsc_link.
25 * -- On SGI called from afs_init. */
27 afs_lock_t afs_ftf; /* flush text lock */
30 lock_t afs_event_lock;
37 afs_ucred_t *afs_osi_credp;
39 #if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
40 kmutex_t afs_global_lock;
43 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
44 long afs_global_owner;
47 #if defined(AFS_DARWIN_ENV)
48 #ifdef AFS_DARWIN80_ENV
49 lck_mtx_t *afs_global_lock;
51 struct lock__bsd__ afs_global_lock;
55 #if defined(AFS_XBSD_ENV) && !defined(AFS_FBSD50_ENV)
56 struct lock afs_global_lock;
57 afs_proc_t *afs_global_owner;
60 struct mtx afs_global_mtx;
61 struct thread *afs_global_owner;
64 #if defined(AFS_DARWIN_ENV)
65 thread_t afs_global_owner;
66 #endif /* AFS_DARWIN_ENV */
68 #if defined(AFS_AIX41_ENV)
69 simple_lock_data afs_global_lock;
76 if (once++ > 0) /* just in case */
81 if (!afs_osicred_initialized) {
82 #if defined(AFS_DARWIN80_ENV)
83 afs_osi_ctxtp_initialized = 0;
84 afs_osi_ctxtp = NULL; /* initialized in afs_Daemon since it has
85 a proc reference that cannot be changed */
87 #if defined(AFS_XBSD_ENV)
88 /* Can't just invent one, must use crget() because of mutex */
92 memset(&afs_osi_cred, 0, sizeof(afs_ucred_t));
93 #if defined(AFS_LINUX26_ENV)
94 afs_set_cr_group_info(&afs_osi_cred, groups_alloc(0));
96 #if defined(AFS_DARWIN80_ENV)
97 afs_osi_cred.cr_ref = 1; /* kauth_cred_get_ref needs 1 existing ref */
99 # if !(defined(AFS_LINUX26_ENV) && defined(STRUCT_TASK_STRUCT_HAS_CRED))
100 crhold(&afs_osi_cred); /* don't let it evaporate */
104 afs_osi_credp = &afs_osi_cred;
106 afs_osicred_initialized = 1;
109 osi_flid.fl_pid = osi_flid.fl_sysid = 0;
112 init_et_to_sys_error();
115 /* mask signals in afsds */
117 afs_osi_MaskSignals(void)
119 #ifdef AFS_LINUX22_ENV
124 /* unmask signals in rxk listener */
126 afs_osi_UnmaskRxkSignals(void)
130 /* Two hacks to try and fix afsdb */
132 afs_osi_MaskUserLoop(void)
134 #ifdef AFS_DARWIN_ENV
136 afs_osi_fullSigMask();
138 afs_osi_MaskSignals();
143 afs_osi_UnmaskUserLoop(void)
145 #ifdef AFS_DARWIN_ENV
146 afs_osi_fullSigRestore();
150 /* register rxk listener proc info */
152 afs_osi_RxkRegister(void)
156 /* procedure for making our processes as invisible as we can */
158 afs_osi_Invisible(void)
160 #ifdef AFS_LINUX22_ENV
161 afs_osi_MaskSignals();
162 #elif defined(AFS_SUN5_ENV)
163 curproc->p_flag |= SSYS;
164 #elif defined(AFS_HPUX101_ENV) && !defined(AFS_HPUX1123_ENV)
165 set_system_proc(u.u_procp);
166 #elif defined(AFS_DARWIN80_ENV)
167 #elif defined(AFS_DARWIN_ENV)
168 /* maybe call init_process instead? */
169 current_proc()->p_flag |= P_SYSTEM;
170 #elif defined(AFS_XBSD_ENV)
171 curproc->p_flag |= P_SYSTEM;
172 #elif defined(AFS_SGI_ENV)
176 AFS_STATCNT(osi_Invisible);
180 afs_osi_Visible(void)
182 #if defined(AFS_SUN5_ENV)
183 curproc->p_flag &= ~SSYS;
184 #elif defined(AFS_DARWIN80_ENV)
185 #elif defined(AFS_DARWIN_ENV)
186 /* maybe call init_process instead? */
187 current_proc()->p_flag &= ~P_SYSTEM;
188 #elif defined(AFS_XBSD_ENV)
189 curproc->p_flag &= ~P_SYSTEM;
193 #if !defined(AFS_LINUX20_ENV) && !defined(AFS_XBSD_ENV)
194 /* set the real time */
196 afs_osi_SetTime(osi_timeval_t * atv)
198 #if defined(AFS_AIX32_ENV)
199 struct timestruc_t t;
201 t.tv_sec = atv->tv_sec;
202 t.tv_nsec = atv->tv_usec * 1000;
203 ksettimer(&t); /* Was -> settimer(TIMEOFDAY, &t); */
204 #elif defined(AFS_SUN55_ENV)
206 #elif defined(AFS_SUN5_ENV)
208 * To get more than second resolution we can use adjtime. The problem
209 * is that the usecs from the server are wrong (by now) so it isn't
210 * worth complicating the following code.
216 sta.time = atv->tv_sec;
219 #elif defined(AFS_SGI_ENV)
225 sta.time = atv->tv_sec;
228 #elif defined(AFS_DARWIN_ENV)
229 #ifndef AFS_DARWIN80_ENV
235 /* stolen from kern_time.c */
237 boottime.tv_sec += atv->tv_sec - time.tv_sec;
241 #if !defined(AFS_HPUX1122_ENV)
242 /* drop the setting of the clock for now. spl7 is not
247 t.tv_sec = atv->tv_sec;
248 t.tv_usec = atv->tv_usec;
265 logtchg(atv->tv_sec);
267 #endif /* AFS_DARWIN_ENV */
268 AFS_STATCNT(osi_SetTime);
270 #endif /* AFS_LINUX20_ENV */
276 AFS_STATCNT(shutdown_osi);
277 #ifdef AFS_DARWIN80_ENV
278 if (afs_osi_ctxtp_initialized && afs_osi_ctxtp) {
279 vfs_context_rele(afs_osi_ctxtp);
280 afs_osi_ctxtp = NULL;
281 afs_osi_ctxtp_initialized = 0;
285 if (afs_cold_shutdown) {
286 LOCK_INIT(&afs_ftf, "afs_ftf");
290 #if !defined(AFS_OBSD_ENV) && !defined(AFS_NBSD40_ENV)
292 afs_osi_suser(void *cr)
294 #if defined(AFS_SUN510_ENV)
295 return (priv_policy(cr, PRIV_SYS_SUSER_COMPAT, B_FALSE, EPERM, NULL) == 0);
296 #elif defined(AFS_SUN5_ENV)
297 return afs_suser(cr);
299 return afs_suser(NULL);