| /* |
| Common Public License Version 0.5 |
| |
| THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF |
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| 4. COMMERCIAL DISTRIBUTION |
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| Commercial distributors of software may accept certain |
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| 5. NO WARRANTY |
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| EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE |
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| damage to or loss of data, programs or equipment, and |
| unavailability or interruption of operations. |
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| 6. DISCLAIMER OF LIABILITY |
| EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER |
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| 7. GENERAL |
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| If any provision of this Agreement is invalid or |
| unenforceable under applicable law, it shall not affect |
| the validity or enforceability of the remainder of the |
| terms of this Agreement, and without further action by the |
| parties hereto, such provision shall be reformed to the |
| minimum extent necessary to make such provision valid and |
| enforceable. |
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| If Recipient institutes patent litigation against a |
| Contributor with respect to a patent applicable to |
| software (including a cross-claim or counterclaim in a |
| lawsuit), then any patent licenses granted by that |
| Contributor to such Recipient under this Agreement shall |
| terminate as of the date such litigation is filed. In |
| addition, If Recipient institutes patent litigation |
| against any entity (including a cross-claim or |
| counterclaim in a lawsuit) alleging that the Program |
| itself (excluding combinations of the Program with other |
| software or hardware) infringes such Recipient's |
| patent(s), then such Recipient's rights granted under |
| Section 2(b) shall terminate as of the date such |
| litigation is filed. |
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| All Recipient's rights under this Agreement shall |
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| under this Agreement terminate, Recipient agrees to cease |
| use and distribution of the Program as soon as reasonably |
| practicable. However, Recipient's obligations under this |
| Agreement and any licenses granted by Recipient relating |
| to the Program shall continue and survive. |
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| Everyone is permitted to copy and distribute copies of |
| this Agreement, but in order to avoid inconsistency the |
| Agreement is copyrighted and may only be modified in the |
| following manner. The Agreement Steward reserves the right |
| to publish new versions (including revisions) of this |
| Agreement from time to time. No one other than the |
| Agreement Steward has the right to modify this Agreement. |
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| IBM is the initial Agreement Steward. IBM may assign the |
| responsibility to serve as the Agreement Steward to a |
| suitable separate entity. Each new version of the |
| Agreement will be given a distinguishing version number. |
| The Program (including Contributions) may always be |
| distributed subject to the version of the Agreement under |
| which it was received. In addition, after a new version of |
| the Agreement is published, Contributor may elect to |
| distribute the Program (including its Contributions) under |
| the new version. Except as expressly stated in Sections |
| 2(a) and 2(b) above, Recipient receives no rights or |
| licenses to the intellectual property of any Contributor |
| under this Agreement, whether expressly, by implication, |
| estoppel or otherwise. All rights in the Program not |
| expressly granted under this Agreement are reserved. |
| |
| |
| This Agreement is governed by the laws of the State of New |
| York and the intellectual property laws of the United |
| States of America. No party to this Agreement will bring a |
| legal action under this Agreement more than one year after |
| the cause of action arose. Each party waives its rights to |
| a jury trial in any resulting litigation. |
| |
| |
| |
| */ |
| |
| /* (C) COPYRIGHT International Business Machines Corp. 2001 */ |
| |
| |
| #include "pthread.h" |
| #include "pkcsslotd.h" |
| #include "err.h" |
| |
| |
| #ifdef PKCS64 |
| extern BOOL IsValidProcessEntry ( pid_t_64 pid, time_t_64 RegTime ); |
| #else |
| extern BOOL IsValidProcessEntry ( pid_t pid, time_t RegTime ); |
| #endif |
| |
| static int SigsToIntercept[] = { |
| SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, |
| SIGTERM, SIGTSTP, SIGTTIN, |
| SIGTTOU, SIGUSR1, SIGUSR2, SIGPROF |
| }; |
| |
| /* SIGCONT - Don't want to exit on SIGCONT; it'll in fact |
| mask other signals - kill -HUP actually sends SIGCONT before SIGHUP */ |
| |
| /* SIGCHLD - Don't want to exit. Should never receive, but we do, apparently when |
| something tries to cancel the GC Thread */ |
| |
| static int SigsToIgnore[] = { |
| SIGCHLD, |
| }; |
| |
| |
| |
| /************************************************** |
| * slotdGenericSignalHandler |
| * |
| * Main signal handler for the daemon. Doesn't |
| * allow the daemon to be killed unless we're |
| * not in use |
| ***************************************************/ |
| void slotdGenericSignalHandler( int Signal ) { |
| |
| int procindex; |
| BOOL OkToExit = TRUE; |
| |
| /******************************************************** |
| * DbgLog calls (possibly) printf, syslog_r, etc. |
| * The behavior of these functions is "undefined" |
| * when called from a signal handler according to |
| * the sigaction man page. |
| * |
| * Thus, they're only called in development |
| * versions of the code. |
| ********************************************************/ |
| |
| #ifdef DEV |
| DbgLog(DL2, "slotdGenericSignalHandler got %s (%d; %#x)", SignalConst(Signal), Signal, Signal); |
| #endif /* DEV */ |
| |
| #if !defined(NOGARBAGE) |
| StopGCThread(shmp); |
| CheckForGarbage(shmp); |
| #endif |
| |
| for ( procindex = 0; (procindex < NUMBER_PROCESSES_ALLOWED); procindex++ ) { |
| |
| #ifdef PKCS64 |
| Slot_Mgr_Proc_t_64 *pProc = &(shmp->proc_table[procindex]); |
| #else |
| Slot_Mgr_Proc_t *pProc = &(shmp->proc_table[procindex]); |
| #endif |
| |
| if ( shmp == NULL ) { |
| break; |
| } |
| if ( ( pProc->inuse ) |
| #if !(NOGARBAGE) |
| && ( IsValidProcessEntry( pProc->proc_id, pProc->reg_time)) |
| #endif |
| ) { |
| /* Someone's still using us... Log it */ |
| OkToExit = FALSE; |
| #ifdef DEV |
| WarnLog("Process %d is still registered", pProc->proc_id); |
| #endif |
| } |
| } |
| |
| if ( !OkToExit ) { |
| DbgLog(DL1,"Continuing execution"); |
| #if !defined(NOGARBAGE) |
| StartGCThread(shmp); |
| #endif |
| return; |
| } |
| |
| InfoLog("Exiting on %s (%d; %#x)", SignalConst(Signal), Signal, Signal); |
| |
| DestroyMutexes(); |
| DetachFromSharedMemory(); |
| DestroySharedMemory(); |
| exit(0); |
| |
| } |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| #if TEST_MUTEXES || TEST_COND_VARS |
| |
| void TestSig ( int Signal ) { |
| |
| int err; |
| |
| LogLog ( "TestSig got %s (%d; %#x)", SignalConst(Signal), Signal, Signal); |
| |
| #if TEST_MUTEXES |
| /* Release the global shared memory mutex */ |
| pthread_mutex_unlock(&(shmp->slt_mutex)); |
| LogLog("TestSig unlocked the mutex"); |
| #endif /* TEST_MUTEXES */ |
| |
| #if TEST_COND_VARS |
| |
| LogLog("Locking the CV Mutex"); |
| if ( (err = pthread_mutex_lock( &(shmp->shmem_cv_mutex) )) != 0 ) { |
| DbgLog(DL0,"TestSig: pthread_mutex_lock returned %s (%d; %#x)\n", SysConst(err), err, err ); |
| return; |
| } |
| |
| /* Manipulate the variable */ |
| |
| LogLog("Locked the CV Mutex"); |
| |
| /* Signal one app/thread */ |
| if ( (err = pthread_cond_signal( &(shmp->shmem_cv) ) ) != 0 ) { |
| DbgLog(DL0,"TestSig: pthread_cond_signal returned %s (%d; %#x)\n", SysConst(err), err, err ); |
| return; |
| } |
| |
| LogLog("Releasing the CV Mutex"); |
| |
| if ( (err = pthread_mutex_unlock ( &(shmp->shmem_cv_mutex) ) ) != 0 ) { |
| DbgLog(DL0,"TestSig: pthread_mutex_unlock returned %s (%d; %#x)\n", SysConst(err), err, err ); |
| return; |
| } |
| LogLog("CV Mutex released"); |
| |
| |
| #endif /* TEST_COND_VARS */ |
| |
| return; |
| |
| } |
| |
| #endif /* TEST_MUTEXES || TEST_COND_VARS*/ |
| |
| |
| |
| |
| |
| |
| |
| |
| /*************************************************** |
| * SetupSignalHandlers - |
| * |
| * Installs slotdGenericSignalHandler for the listed signals |
| * |
| ***************************************************/ |
| int SetupSignalHandlers ( void ) { |
| |
| unsigned int i; |
| struct sigaction new_action; |
| |
| new_action.sa_handler = slotdGenericSignalHandler; |
| sigemptyset(&(new_action.sa_mask)); |
| sigaddset(&(new_action.sa_mask), SIGCHLD); |
| /* sigaddset(&(new_action.sa_mask), SA_NOCLDWAIT); */ |
| /* sigaddset(&(new_action.sa_mask), SA_NOCLDSTOP); */ |
| |
| new_action.sa_flags = (RESTART_SYS_CALLS ? SA_RESTART : 0); |
| |
| |
| for ( i = 0; i < (sizeof(SigsToIntercept) / sizeof(SigsToIntercept[0])); i++ ) { |
| |
| if ( sigaction ( SigsToIntercept[i], &new_action, NULL ) != 0 ) { |
| //DbgLog("SetupSignalHandlers - sigaction failed for %s (%d; %#x)", SignalConst(SigsToIntercept[i]), SigsToIntercept[i], SigsToIntercept[i]); |
| return FALSE; |
| } |
| |
| } |
| |
| |
| new_action.sa_handler = SIG_IGN; |
| sigemptyset(&(new_action.sa_mask)); |
| for ( i = 0; i < (sizeof ( SigsToIgnore ) / sizeof (SigsToIgnore[0]) ); i++ ) { |
| if ( sigaction ( SigsToIgnore[i], &new_action, NULL ) != 0 ) { |
| //DbgLog ( "Failed to ignore signal."); |
| return FALSE; |
| } |
| } |
| |
| #if TEST_MUTEXES || TEST_COND_VARS |
| |
| new_action.sa_handler = TestSig; |
| if ( sigaction ( SIGUSR1, &new_action, NULL ) != 0 ) { |
| DbgLog(DL0,"Failed to set TestSig for SIGUSR1"); |
| return FALSE; |
| } |
| |
| #endif /* TEST_MUTEXES || TEST_COND_VARS */ |
| |
| |
| |
| return TRUE; |
| |
| } |
| |
| |
| |
| /*********************************************************************** |
| * GCBlockSignals - |
| * |
| * Garbage collector calls this to prevent signals from getting |
| * sent to the GC thread. |
| * |
| ***********************************************************************/ |
| |
| BOOL GCBlockSignals (void) { |
| |
| unsigned int i; |
| int ret; |
| sigset_t SigSet; |
| |
| sigemptyset(&SigSet); |
| for ( i = 0; i < (sizeof(SigsToIntercept) / sizeof(SigsToIntercept[0]) ); i++ ) { |
| sigaddset(&SigSet, SigsToIntercept[i]); |
| } |
| |
| ret = pthread_sigmask(SIG_SETMASK, &SigSet, NULL); |
| |
| return ret; |
| |
| } |