diff options
Diffstat (limited to 'usr/src/lib/libima/common/sunima-lib.c')
-rw-r--r-- | usr/src/lib/libima/common/sunima-lib.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/usr/src/lib/libima/common/sunima-lib.c b/usr/src/lib/libima/common/sunima-lib.c new file mode 100644 index 0000000000..6a233eaec1 --- /dev/null +++ b/usr/src/lib/libima/common/sunima-lib.c @@ -0,0 +1,148 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#include <dlfcn.h> +#include <pthread.h> +#include <string.h> +#include <sys/sem.h> + +#include "libsun_ima.h" +#include "ima.h" +#include "ima-plugin.h" + +extern int number_of_plugins; +extern int libMutex; +extern IMA_PLUGIN_INFO plugintable[IMA_MAX_NUM_PLUGINS]; +extern void InitLibrary(); + +static void os_obtainmutex(int semid); +static void os_releasemutex(int semid); + +IMA_API IMA_STATUS SUN_IMA_SetTunableProperties( + IMA_OID oid, + ISCSI_TUNABLE_PARAM *param) { + SUN_IMA_SetTunablePropertiesFn PassFunc; + IMA_UINT i; + IMA_STATUS status; + + if (number_of_plugins == -1) { + InitLibrary(); + } + + if (param == NULL) { + return (IMA_ERROR_INVALID_PARAMETER); + } + + if ((oid.objectType != IMA_OBJECT_TYPE_LHBA) && + (oid.objectType != IMA_OBJECT_TYPE_TARGET)) { + return (IMA_ERROR_INCORRECT_OBJECT_TYPE); + } + + os_obtainmutex(libMutex); + status = IMA_ERROR_OBJECT_NOT_FOUND; + + for (i = 0; i < number_of_plugins; i++) { + if (plugintable[i].ownerId == oid.ownerId) { + status = IMA_ERROR_UNEXPECTED_OS_ERROR; + os_obtainmutex(plugintable[i].pluginMutex); +#ifdef SOLARIS + PassFunc = (SUN_IMA_SetTunablePropertiesFn) + dlsym(plugintable[i].hPlugin, + "SUN_IMA_SetTunableProperties"); +#endif + if (PassFunc != NULL) { + status = PassFunc(oid, param); + } + os_releasemutex(plugintable[i].pluginMutex); + break; + } + } + os_releasemutex(libMutex); + return (status); +} + +IMA_API IMA_STATUS SUN_IMA_GetTunableProperties( + IMA_OID oid, + ISCSI_TUNABLE_PARAM *param) { + SUN_IMA_GetTunablePropertiesFn PassFunc = NULL; + int i; + IMA_STATUS status; + + if (number_of_plugins == -1) { + InitLibrary(); + } + + if (param == NULL) { + return (IMA_ERROR_INVALID_PARAMETER); + } + + if ((oid.objectType != IMA_OBJECT_TYPE_LHBA) && + (oid.objectType != IMA_OBJECT_TYPE_TARGET)) { + return (IMA_ERROR_INCORRECT_OBJECT_TYPE); + } + + os_obtainmutex(libMutex); + status = IMA_ERROR_OBJECT_NOT_FOUND; + for (i = 0; i < number_of_plugins; i++) { + status = IMA_ERROR_UNEXPECTED_OS_ERROR; + if (plugintable[i].ownerId == oid.ownerId) { + os_obtainmutex(plugintable[i].pluginMutex); +#ifdef SOLARIS + PassFunc = (SUN_IMA_GetTunablePropertiesFn) + dlsym(plugintable[i].hPlugin, + "SUN_IMA_GetTunableProperties"); +#endif + if (PassFunc != NULL) { + status = PassFunc(oid, param); + } + os_releasemutex(plugintable[i].pluginMutex); + break; + } + } + os_releasemutex(libMutex); + return (status); +} + +static void os_obtainmutex(int semid) { + int retVal; + struct sembuf sem_b; + + sem_b.sem_num = 0; + sem_b.sem_op = -1; + sem_b.sem_flg = SEM_UNDO; + retVal = semop(semid, &sem_b, 1); + +} + +static void os_releasemutex(int semid) { + int retVal; + struct sembuf sem_b; + + sem_b.sem_num = 0; + sem_b.sem_op = 1; + sem_b.sem_flg = SEM_UNDO; + retVal = semop(semid, &sem_b, 1); + +} |