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 crhold(&afs_osi_cred); /* don't let it evaporate */
101 afs_osi_credp = &afs_osi_cred;
103 afs_osicred_initialized = 1;
106 osi_flid.fl_pid = osi_flid.fl_sysid = 0;
109 init_et_to_sys_error();
112 /* mask signals in afsds */
114 afs_osi_MaskSignals(void)
116 #ifdef AFS_LINUX22_ENV
121 /* unmask signals in rxk listener */
123 afs_osi_UnmaskRxkSignals(void)
127 /* Two hacks to try and fix afsdb */
129 afs_osi_MaskUserLoop(void)
131 #ifdef AFS_DARWIN_ENV
133 afs_osi_fullSigMask();
135 afs_osi_MaskSignals();
140 afs_osi_UnmaskUserLoop(void)
142 #ifdef AFS_DARWIN_ENV
143 afs_osi_fullSigRestore();
147 /* register rxk listener proc info */
149 afs_osi_RxkRegister(void)
153 /* procedure for making our processes as invisible as we can */
155 afs_osi_Invisible(void)
157 #ifdef AFS_LINUX22_ENV
158 afs_osi_MaskSignals();
159 #elif defined(AFS_SUN5_ENV)
160 curproc->p_flag |= SSYS;
161 #elif defined(AFS_HPUX101_ENV) && !defined(AFS_HPUX1123_ENV)
162 set_system_proc(u.u_procp);
163 #elif defined(AFS_DARWIN80_ENV)
164 #elif defined(AFS_DARWIN_ENV)
165 /* maybe call init_process instead? */
166 current_proc()->p_flag |= P_SYSTEM;
167 #elif defined(AFS_XBSD_ENV)
168 curproc->p_flag |= P_SYSTEM;
169 #elif defined(AFS_SGI_ENV)
173 AFS_STATCNT(osi_Invisible);
177 afs_osi_Visible(void)
179 #if defined(AFS_SUN5_ENV)
180 curproc->p_flag &= ~SSYS;
181 #elif defined(AFS_DARWIN80_ENV)
182 #elif defined(AFS_DARWIN_ENV)
183 /* maybe call init_process instead? */
184 current_proc()->p_flag &= ~P_SYSTEM;
185 #elif defined(AFS_XBSD_ENV)
186 curproc->p_flag &= ~P_SYSTEM;
190 #if !defined(AFS_LINUX20_ENV) && !defined(AFS_XBSD_ENV)
191 /* set the real time */
193 afs_osi_SetTime(osi_timeval_t * atv)
195 #if defined(AFS_AIX32_ENV)
196 struct timestruc_t t;
198 t.tv_sec = atv->tv_sec;
199 t.tv_nsec = atv->tv_usec * 1000;
200 ksettimer(&t); /* Was -> settimer(TIMEOFDAY, &t); */
201 #elif defined(AFS_SUN55_ENV)
203 #elif defined(AFS_SUN5_ENV)
205 * To get more than second resolution we can use adjtime. The problem
206 * is that the usecs from the server are wrong (by now) so it isn't
207 * worth complicating the following code.
213 sta.time = atv->tv_sec;
216 #elif defined(AFS_SGI_ENV)
222 sta.time = atv->tv_sec;
225 #elif defined(AFS_DARWIN_ENV)
226 #ifndef AFS_DARWIN80_ENV
232 /* stolen from kern_time.c */
234 boottime.tv_sec += atv->tv_sec - time.tv_sec;
238 #if !defined(AFS_HPUX1122_ENV)
239 /* drop the setting of the clock for now. spl7 is not
244 t.tv_sec = atv->tv_sec;
245 t.tv_usec = atv->tv_usec;
262 logtchg(atv->tv_sec);
264 #endif /* AFS_DARWIN_ENV */
265 AFS_STATCNT(osi_SetTime);
267 #endif /* AFS_LINUX20_ENV */
273 AFS_STATCNT(shutdown_osi);
274 #ifdef AFS_DARWIN80_ENV
275 if (afs_osi_ctxtp_initialized && afs_osi_ctxtp) {
276 vfs_context_rele(afs_osi_ctxtp);
277 afs_osi_ctxtp = NULL;
278 afs_osi_ctxtp_initialized = 0;
282 if (afs_cold_shutdown) {
283 LOCK_INIT(&afs_ftf, "afs_ftf");
289 afs_osi_suser(void *cr)
291 #if defined(AFS_SUN510_ENV)
292 return (priv_policy(cr, PRIV_SYS_SUSER_COMPAT, B_FALSE, EPERM, NULL) == 0);
293 #elif defined(AFS_SUN5_ENV)
294 return afs_suser(cr);
296 return afs_suser(NULL);