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;
63 #if defined(AFS_DARWIN_ENV)
64 thread_t afs_global_owner;
65 #endif /* AFS_DARWIN_ENV */
67 #if defined(AFS_AIX41_ENV)
68 simple_lock_data afs_global_lock;
75 if (once++ > 0) /* just in case */
77 #if defined(AFS_HPUX_ENV)
79 #else /* AFS_HPUX_ENV */
80 #if defined(AFS_GLOBAL_SUNLOCK)
81 #if defined(AFS_SGI62_ENV)
82 mutex_init(&afs_global_lock, MUTEX_DEFAULT, "afs_global_lock");
83 #elif defined(AFS_FBSD50_ENV)
84 #if defined(AFS_FBSD80_ENV) && defined(WITNESS)
85 /* "lock_initalized" (sic) can panic, checks a flag bit
86 * is unset _before_ init */
87 memset(&afs_global_mtx, 0, sizeof(struct mtx));
89 mtx_init(&afs_global_mtx, "AFS global lock", NULL, MTX_DEF);
90 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
91 #if !defined(AFS_DARWIN80_ENV)
92 lockinit(&afs_global_lock, PLOCK, "afs global lock", 0, 0);
95 #elif defined(AFS_AIX41_ENV)
96 lock_alloc((void *)&afs_global_lock, LOCK_ALLOC_PIN, 1, 1);
97 simple_lock_init((void *)&afs_global_lock);
98 #elif !defined(AFS_LINUX22_ENV)
99 /* Linux initialization in osi directory. Should move the others. */
100 mutex_init(&afs_global_lock, "afs_global_lock", MUTEX_DEFAULT, NULL);
102 #endif /* AFS_GLOBAL_SUNLOCK */
103 #endif /* AFS_HPUX_ENV */
105 if (!afs_osicred_initialized) {
106 #if defined(AFS_DARWIN80_ENV)
107 afs_osi_ctxtp_initialized = 0;
108 afs_osi_ctxtp = NULL; /* initialized in afs_Daemon since it has
109 a proc reference that cannot be changed */
111 #if defined(AFS_XBSD_ENV)
112 /* Can't just invent one, must use crget() because of mutex */
113 afs_osi_credp = crdup(osi_curcred());
115 memset(&afs_osi_cred, 0, sizeof(afs_ucred_t));
116 #if defined(AFS_LINUX26_ENV)
117 afs_set_cr_group_info(&afs_osi_cred, groups_alloc(0));
119 #if defined(AFS_DARWIN80_ENV)
120 afs_osi_cred.cr_ref = 1; /* kauth_cred_get_ref needs 1 existing ref */
122 crhold(&afs_osi_cred); /* don't let it evaporate */
125 afs_osi_credp = &afs_osi_cred;
127 afs_osicred_initialized = 1;
130 osi_flid.fl_pid = osi_flid.fl_sysid = 0;
133 init_et_to_sys_error();
136 /* mask signals in afsds */
138 afs_osi_MaskSignals(void)
140 #ifdef AFS_LINUX22_ENV
145 /* unmask signals in rxk listener */
147 afs_osi_UnmaskRxkSignals(void)
151 /* Two hacks to try and fix afsdb */
153 afs_osi_MaskUserLoop()
155 #ifdef AFS_DARWIN_ENV
157 afs_osi_fullSigMask();
159 afs_osi_MaskSignals();
164 afs_osi_UnmaskUserLoop(void)
166 #ifdef AFS_DARWIN_ENV
167 afs_osi_fullSigRestore();
171 /* register rxk listener proc info */
173 afs_osi_RxkRegister(void)
177 /* procedure for making our processes as invisible as we can */
179 afs_osi_Invisible(void)
181 #ifdef AFS_LINUX22_ENV
182 afs_osi_MaskSignals();
183 #elif defined(AFS_SUN5_ENV)
184 curproc->p_flag |= SSYS;
185 #elif defined(AFS_HPUX101_ENV) && !defined(AFS_HPUX1123_ENV)
186 set_system_proc(u.u_procp);
187 #elif defined(AFS_DARWIN80_ENV)
188 #elif defined(AFS_DARWIN_ENV)
189 /* maybe call init_process instead? */
190 current_proc()->p_flag |= P_SYSTEM;
191 #elif defined(AFS_XBSD_ENV)
192 curproc->p_flag |= P_SYSTEM;
193 #elif defined(AFS_SGI_ENV)
197 AFS_STATCNT(osi_Invisible);
201 afs_osi_Visible(void)
203 #if defined(AFS_SUN5_ENV)
204 curproc->p_flag &= ~SSYS;
205 #elif defined(AFS_DARWIN80_ENV)
206 #elif defined(AFS_DARWIN_ENV)
207 /* maybe call init_process instead? */
208 current_proc()->p_flag &= ~P_SYSTEM;
209 #elif defined(AFS_XBSD_ENV)
210 curproc->p_flag &= ~P_SYSTEM;
214 #if !defined(AFS_LINUX20_ENV) && !defined(AFS_XBSD_ENV)
215 /* set the real time */
217 afs_osi_SetTime(osi_timeval_t * atv)
219 #if defined(AFS_AIX32_ENV)
220 struct timestruc_t t;
222 t.tv_sec = atv->tv_sec;
223 t.tv_nsec = atv->tv_usec * 1000;
224 ksettimer(&t); /* Was -> settimer(TIMEOFDAY, &t); */
225 #elif defined(AFS_SUN55_ENV)
227 #elif defined(AFS_SUN5_ENV)
229 * To get more than second resolution we can use adjtime. The problem
230 * is that the usecs from the server are wrong (by now) so it isn't
231 * worth complicating the following code.
237 sta.time = atv->tv_sec;
240 #elif defined(AFS_SGI_ENV)
246 sta.time = atv->tv_sec;
249 #elif defined(AFS_DARWIN_ENV)
250 #ifndef AFS_DARWIN80_ENV
256 /* stolen from kern_time.c */
258 boottime.tv_sec += atv->tv_sec - time.tv_sec;
262 #if !defined(AFS_HPUX1122_ENV)
263 /* drop the setting of the clock for now. spl7 is not
268 t.tv_sec = atv->tv_sec;
269 t.tv_usec = atv->tv_usec;
286 logtchg(atv->tv_sec);
288 #endif /* AFS_DARWIN_ENV */
289 AFS_STATCNT(osi_SetTime);
291 #endif /* AFS_LINUX20_ENV */
297 AFS_STATCNT(shutdown_osi);
298 #ifdef AFS_DARWIN80_ENV
299 if (afs_osi_ctxtp_initialized && afs_osi_ctxtp) {
300 vfs_context_rele(afs_osi_ctxtp);
301 afs_osi_ctxtp = NULL;
302 afs_osi_ctxtp_initialized = 0;
306 if (afs_cold_shutdown) {
307 LOCK_INIT(&afs_ftf, "afs_ftf");
313 afs_osi_suser(void *cr)
315 #if defined(AFS_SUN510_ENV)
316 return (priv_policy(cr, PRIV_SYS_SUSER_COMPAT, B_FALSE, EPERM, NULL) == 0);
317 #elif defined(AFS_SUN5_ENV)
318 return afs_suser(cr);
320 return afs_suser(NULL);