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 */
89 afs_osi_credp = crdup(osi_curcred());
91 memset(&afs_osi_cred, 0, sizeof(afs_ucred_t));
92 #if defined(AFS_LINUX26_ENV)
93 afs_set_cr_group_info(&afs_osi_cred, groups_alloc(0));
95 #if defined(AFS_DARWIN80_ENV)
96 afs_osi_cred.cr_ref = 1; /* kauth_cred_get_ref needs 1 existing ref */
98 # if !(defined(AFS_LINUX26_ENV) && defined(STRUCT_TASK_STRUCT_HAS_CRED))
99 crhold(&afs_osi_cred); /* don't let it evaporate */
103 afs_osi_credp = &afs_osi_cred;
105 afs_osicred_initialized = 1;
108 osi_flid.fl_pid = osi_flid.fl_sysid = 0;
111 init_et_to_sys_error();
114 /* mask signals in afsds */
116 afs_osi_MaskSignals(void)
118 #ifdef AFS_LINUX22_ENV
123 /* unmask signals in rxk listener */
125 afs_osi_UnmaskRxkSignals(void)
129 /* Two hacks to try and fix afsdb */
131 afs_osi_MaskUserLoop(void)
133 #ifdef AFS_DARWIN_ENV
135 afs_osi_fullSigMask();
137 afs_osi_MaskSignals();
142 afs_osi_UnmaskUserLoop(void)
144 #ifdef AFS_DARWIN_ENV
145 afs_osi_fullSigRestore();
149 /* register rxk listener proc info */
151 afs_osi_RxkRegister(void)
155 /* procedure for making our processes as invisible as we can */
157 afs_osi_Invisible(void)
159 #ifdef AFS_LINUX22_ENV
160 afs_osi_MaskSignals();
161 #elif defined(AFS_SUN5_ENV)
162 curproc->p_flag |= SSYS;
163 #elif defined(AFS_HPUX101_ENV) && !defined(AFS_HPUX1123_ENV)
164 set_system_proc(u.u_procp);
165 #elif defined(AFS_DARWIN80_ENV)
166 #elif defined(AFS_DARWIN_ENV)
167 /* maybe call init_process instead? */
168 current_proc()->p_flag |= P_SYSTEM;
169 #elif defined(AFS_XBSD_ENV)
170 curproc->p_flag |= P_SYSTEM;
171 #elif defined(AFS_SGI_ENV)
175 AFS_STATCNT(osi_Invisible);
179 afs_osi_Visible(void)
181 #if defined(AFS_SUN5_ENV)
182 curproc->p_flag &= ~SSYS;
183 #elif defined(AFS_DARWIN80_ENV)
184 #elif defined(AFS_DARWIN_ENV)
185 /* maybe call init_process instead? */
186 current_proc()->p_flag &= ~P_SYSTEM;
187 #elif defined(AFS_XBSD_ENV)
188 curproc->p_flag &= ~P_SYSTEM;
192 #if !defined(AFS_LINUX20_ENV) && !defined(AFS_XBSD_ENV)
193 /* set the real time */
195 afs_osi_SetTime(osi_timeval_t * atv)
197 #if defined(AFS_AIX32_ENV)
198 struct timestruc_t t;
200 t.tv_sec = atv->tv_sec;
201 t.tv_nsec = atv->tv_usec * 1000;
202 ksettimer(&t); /* Was -> settimer(TIMEOFDAY, &t); */
203 #elif defined(AFS_SUN55_ENV)
205 #elif defined(AFS_SUN5_ENV)
207 * To get more than second resolution we can use adjtime. The problem
208 * is that the usecs from the server are wrong (by now) so it isn't
209 * worth complicating the following code.
215 sta.time = atv->tv_sec;
218 #elif defined(AFS_SGI_ENV)
224 sta.time = atv->tv_sec;
227 #elif defined(AFS_DARWIN_ENV)
228 #ifndef AFS_DARWIN80_ENV
234 /* stolen from kern_time.c */
236 boottime.tv_sec += atv->tv_sec - time.tv_sec;
240 #if !defined(AFS_HPUX1122_ENV)
241 /* drop the setting of the clock for now. spl7 is not
246 t.tv_sec = atv->tv_sec;
247 t.tv_usec = atv->tv_usec;
264 logtchg(atv->tv_sec);
266 #endif /* AFS_DARWIN_ENV */
267 AFS_STATCNT(osi_SetTime);
269 #endif /* AFS_LINUX20_ENV */
275 AFS_STATCNT(shutdown_osi);
276 #ifdef AFS_DARWIN80_ENV
277 if (afs_osi_ctxtp_initialized && afs_osi_ctxtp) {
278 vfs_context_rele(afs_osi_ctxtp);
279 afs_osi_ctxtp = NULL;
280 afs_osi_ctxtp_initialized = 0;
284 if (afs_cold_shutdown) {
285 LOCK_INIT(&afs_ftf, "afs_ftf");
291 afs_osi_suser(void *cr)
293 #if defined(AFS_SUN510_ENV)
294 return (priv_policy(cr, PRIV_SYS_SUSER_COMPAT, B_FALSE, EPERM, NULL) == 0);
295 #elif defined(AFS_SUN5_ENV)
296 return afs_suser(cr);
298 return afs_suser(NULL);