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 thread_t afs_global_owner;
49 #ifdef AFS_DARWIN80_ENV
50 lck_mtx_t *afs_global_lock;
52 struct lock__bsd__ afs_global_lock;
56 #if defined(AFS_XBSD_ENV) && !defined(AFS_FBSD_ENV)
57 struct lock afs_global_lock;
58 afs_proc_t *afs_global_owner;
59 #elif defined(AFS_FBSD_ENV)
60 struct mtx afs_global_mtx;
61 struct thread *afs_global_owner;
64 #if defined(AFS_AIX41_ENV)
65 simple_lock_data afs_global_lock;
72 if (once++ > 0) /* just in case */
77 if (!afs_osicred_initialized) {
78 #if defined(AFS_DARWIN80_ENV)
79 afs_osi_ctxtp_initialized = 0;
80 afs_osi_ctxtp = NULL; /* initialized in afs_Daemon since it has
81 a proc reference that cannot be changed */
83 #if defined(AFS_XBSD_ENV)
84 /* Can't just invent one, must use crget() because of mutex */
88 memset(&afs_osi_cred, 0, sizeof(afs_ucred_t));
89 #if defined(AFS_LINUX26_ENV)
90 afs_set_cr_group_info(&afs_osi_cred, groups_alloc(0));
92 #if defined(AFS_DARWIN80_ENV)
93 afs_osi_cred.cr_ref = 1; /* kauth_cred_get_ref needs 1 existing ref */
95 # if !(defined(AFS_LINUX26_ENV) && defined(STRUCT_TASK_STRUCT_HAS_CRED))
96 crhold(&afs_osi_cred); /* don't let it evaporate */
100 afs_osi_credp = &afs_osi_cred;
102 afs_osicred_initialized = 1;
105 osi_flid.fl_pid = osi_flid.fl_sysid = 0;
108 init_et_to_sys_error();
111 /* mask signals in afsds */
113 afs_osi_MaskSignals(void)
115 #ifdef AFS_LINUX22_ENV
120 /* unmask signals in rxk listener */
122 afs_osi_UnmaskRxkSignals(void)
126 /* Two hacks to try and fix afsdb */
128 afs_osi_MaskUserLoop(void)
130 #ifdef AFS_DARWIN_ENV
132 afs_osi_fullSigMask();
134 afs_osi_MaskSignals();
139 afs_osi_UnmaskUserLoop(void)
141 #ifdef AFS_DARWIN_ENV
142 afs_osi_fullSigRestore();
146 /* register rxk listener proc info */
148 afs_osi_RxkRegister(void)
152 /* procedure for making our processes as invisible as we can */
154 afs_osi_Invisible(void)
156 #ifdef AFS_LINUX22_ENV
157 afs_osi_MaskSignals();
158 #elif defined(AFS_SUN5_ENV)
159 curproc->p_flag |= SSYS;
160 #elif defined(AFS_HPUX101_ENV) && !defined(AFS_HPUX1123_ENV)
161 set_system_proc(u.u_procp);
162 #elif defined(AFS_DARWIN80_ENV)
163 #elif defined(AFS_DARWIN_ENV)
164 /* maybe call init_process instead? */
165 current_proc()->p_flag |= P_SYSTEM;
166 #elif defined(AFS_XBSD_ENV)
167 curproc->p_flag |= P_SYSTEM;
168 #elif defined(AFS_SGI_ENV)
172 AFS_STATCNT(osi_Invisible);
176 afs_osi_Visible(void)
178 #if defined(AFS_SUN5_ENV)
179 curproc->p_flag &= ~SSYS;
180 #elif defined(AFS_DARWIN80_ENV)
181 #elif defined(AFS_DARWIN_ENV)
182 /* maybe call init_process instead? */
183 current_proc()->p_flag &= ~P_SYSTEM;
184 #elif defined(AFS_XBSD_ENV)
185 curproc->p_flag &= ~P_SYSTEM;
189 #if !defined(AFS_LINUX20_ENV) && !defined(AFS_XBSD_ENV)
190 /* set the real time */
192 afs_osi_SetTime(osi_timeval_t * atv)
194 #if defined(AFS_AIX32_ENV)
195 struct timestruc_t t;
197 t.tv_sec = atv->tv_sec;
198 t.tv_nsec = atv->tv_usec * 1000;
199 ksettimer(&t); /* Was -> settimer(TIMEOFDAY, &t); */
200 #elif defined(AFS_SUN55_ENV)
202 #elif defined(AFS_SUN5_ENV)
204 * To get more than second resolution we can use adjtime. The problem
205 * is that the usecs from the server are wrong (by now) so it isn't
206 * worth complicating the following code.
212 sta.time = atv->tv_sec;
215 #elif defined(AFS_SGI_ENV)
221 sta.time = atv->tv_sec;
224 #elif defined(AFS_DARWIN_ENV)
225 #ifndef AFS_DARWIN80_ENV
231 /* stolen from kern_time.c */
233 boottime.tv_sec += atv->tv_sec - time.tv_sec;
237 #if !defined(AFS_HPUX1122_ENV)
238 /* drop the setting of the clock for now. spl7 is not
243 t.tv_sec = atv->tv_sec;
244 t.tv_usec = atv->tv_usec;
261 logtchg(atv->tv_sec);
263 #endif /* AFS_DARWIN_ENV */
264 AFS_STATCNT(osi_SetTime);
266 #endif /* AFS_LINUX20_ENV */
272 AFS_STATCNT(shutdown_osi);
273 #ifdef AFS_DARWIN80_ENV
274 if (afs_osi_ctxtp_initialized && afs_osi_ctxtp) {
275 vfs_context_rele(afs_osi_ctxtp);
276 afs_osi_ctxtp = NULL;
277 afs_osi_ctxtp_initialized = 0;
281 if (afs_cold_shutdown) {
282 LOCK_INIT(&afs_ftf, "afs_ftf");
286 #if !defined(AFS_OBSD_ENV) && !defined(AFS_NBSD40_ENV)
288 afs_osi_suser(void *cr)
290 #if defined(AFS_SUN510_ENV)
291 return (priv_policy(cr, PRIV_SYS_SUSER_COMPAT, B_FALSE, EPERM, NULL) == 0);
292 #elif defined(AFS_SUN5_ENV)
293 return afs_suser(cr);
295 return afs_suser(NULL);