libzfs_jni_pool.c revision 3fdda4994a108ded4ec1a2b544804f191a4ec83a
/*
* 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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#include "libzfs_jni_util.h"
#include "libzfs_jni_pool.h"
#include <strings.h>
/*
* Types
*/
typedef struct ImportablePoolBean {
zjni_Object_t super;
PoolStatsBean_t interface_PoolStats;
jmethodID method_setName;
jmethodID method_setId;
} ImportablePoolBean_t;
typedef struct VirtualDeviceBean {
zjni_Object_t super;
DeviceStatsBean_t interface_DeviceStats;
jmethodID method_setPoolName;
jmethodID method_setParentIndex;
jmethodID method_setIndex;
} VirtualDeviceBean_t;
typedef struct LeafVirtualDeviceBean {
VirtualDeviceBean_t super;
jmethodID method_setName;
} LeafVirtualDeviceBean_t;
typedef struct DiskVirtualDeviceBean {
LeafVirtualDeviceBean_t super;
} DiskVirtualDeviceBean_t;
typedef struct SliceVirtualDeviceBean {
LeafVirtualDeviceBean_t super;
} SliceVirtualDeviceBean_t;
typedef struct FileVirtualDeviceBean {
LeafVirtualDeviceBean_t super;
} FileVirtualDeviceBean_t;
typedef struct RAIDVirtualDeviceBean {
VirtualDeviceBean_t super;
jmethodID method_setParity;
} RAIDVirtualDeviceBean_t;
typedef struct MirrorVirtualDeviceBean {
VirtualDeviceBean_t super;
} MirrorVirtualDeviceBean_t;
/*
* Data
*/
/* vdev_state_t to DeviceStats$DeviceState map */
static zjni_field_mapping_t vdev_state_map[] = {
{ VDEV_STATE_CANT_OPEN, "VDEV_STATE_CANT_OPEN" },
{ VDEV_STATE_CLOSED, "VDEV_STATE_CLOSED" },
{ VDEV_STATE_DEGRADED, "VDEV_STATE_DEGRADED" },
{ VDEV_STATE_HEALTHY, "VDEV_STATE_HEALTHY" },
{ VDEV_STATE_OFFLINE, "VDEV_STATE_OFFLINE" },
{ VDEV_STATE_UNKNOWN, "VDEV_STATE_UNKNOWN" },
{ -1, NULL },
};
/* vdev_aux_t to DeviceStats$DeviceStatus map */
static zjni_field_mapping_t vdev_aux_map[] = {
{ VDEV_AUX_NONE, "VDEV_AUX_NONE" },
{ VDEV_AUX_OPEN_FAILED, "VDEV_AUX_OPEN_FAILED" },
{ VDEV_AUX_CORRUPT_DATA, "VDEV_AUX_CORRUPT_DATA" },
{ VDEV_AUX_NO_REPLICAS, "VDEV_AUX_NO_REPLICAS" },
{ VDEV_AUX_BAD_GUID_SUM, "VDEV_AUX_BAD_GUID_SUM" },
{ VDEV_AUX_TOO_SMALL, "VDEV_AUX_TOO_SMALL" },
{ VDEV_AUX_BAD_LABEL, "VDEV_AUX_BAD_LABEL" },
{ -1, NULL },
};
/* zpool_state_t to PoolStats$PoolState map */
static zjni_field_mapping_t pool_state_map[] = {
{ POOL_STATE_ACTIVE, "POOL_STATE_ACTIVE" },
{ POOL_STATE_EXPORTED, "POOL_STATE_EXPORTED" },
{ POOL_STATE_DESTROYED, "POOL_STATE_DESTROYED" },
{ POOL_STATE_SPARE, "POOL_STATE_SPARE" },
{ POOL_STATE_UNINITIALIZED, "POOL_STATE_UNINITIALIZED" },
{ POOL_STATE_UNAVAIL, "POOL_STATE_UNAVAIL" },
{ POOL_STATE_POTENTIALLY_ACTIVE, "POOL_STATE_POTENTIALLY_ACTIVE" },
{ -1, NULL },
};
/* zpool_status_t to PoolStats$PoolStatus map */
static zjni_field_mapping_t zpool_status_map[] = {
{ ZPOOL_STATUS_CORRUPT_CACHE, "ZPOOL_STATUS_CORRUPT_CACHE" },
{ ZPOOL_STATUS_MISSING_DEV_R, "ZPOOL_STATUS_MISSING_DEV_R" },
{ ZPOOL_STATUS_MISSING_DEV_NR, "ZPOOL_STATUS_MISSING_DEV_NR" },
{ ZPOOL_STATUS_CORRUPT_LABEL_R, "ZPOOL_STATUS_CORRUPT_LABEL_R" },
{ ZPOOL_STATUS_CORRUPT_LABEL_NR, "ZPOOL_STATUS_CORRUPT_LABEL_NR" },
{ ZPOOL_STATUS_BAD_GUID_SUM, "ZPOOL_STATUS_BAD_GUID_SUM" },
{ ZPOOL_STATUS_CORRUPT_POOL, "ZPOOL_STATUS_CORRUPT_POOL" },
{ ZPOOL_STATUS_CORRUPT_DATA, "ZPOOL_STATUS_CORRUPT_DATA" },
{ ZPOOL_STATUS_FAILING_DEV, "ZPOOL_STATUS_FAILING_DEV" },
{ ZPOOL_STATUS_VERSION_NEWER, "ZPOOL_STATUS_VERSION_NEWER" },
{ ZPOOL_STATUS_HOSTID_MISMATCH, "ZPOOL_STATUS_HOSTID_MISMATCH" },
{ ZPOOL_STATUS_FAULTED_DEV_R, "ZPOOL_STATUS_FAULTED_DEV_R" },
{ ZPOOL_STATUS_FAULTED_DEV_NR, "ZPOOL_STATUS_FAULTED_DEV_NR" },
{ ZPOOL_STATUS_BAD_LOG, "ZPOOL_STATUS_BAD_LOG" },
{ ZPOOL_STATUS_VERSION_OLDER, "ZPOOL_STATUS_VERSION_OLDER" },
{ ZPOOL_STATUS_RESILVERING, "ZPOOL_STATUS_RESILVERING" },
{ ZPOOL_STATUS_OFFLINE_DEV, "ZPOOL_STATUS_OFFLINE_DEV" },
{ ZPOOL_STATUS_REMOVED_DEV, "ZPOOL_STATUS_REMOVED_DEV" },
{ ZPOOL_STATUS_OK, "ZPOOL_STATUS_OK" },
{ -1, NULL }
};
/*
* Function prototypes
*/
static void new_ImportablePoolBean(JNIEnv *, ImportablePoolBean_t *);
static void new_VirtualDevice(JNIEnv *, VirtualDeviceBean_t *);
static void new_LeafVirtualDevice(JNIEnv *, LeafVirtualDeviceBean_t *);
static void new_DiskVirtualDeviceBean(JNIEnv *, DiskVirtualDeviceBean_t *);
static void new_SliceVirtualDeviceBean(JNIEnv *, SliceVirtualDeviceBean_t *);
static void new_FileVirtualDeviceBean(JNIEnv *, FileVirtualDeviceBean_t *);
static void new_RAIDVirtualDeviceBean(JNIEnv *, RAIDVirtualDeviceBean_t *);
static void new_MirrorVirtualDeviceBean(JNIEnv *, MirrorVirtualDeviceBean_t *);
static int populate_ImportablePoolBean(
JNIEnv *, ImportablePoolBean_t *, nvlist_t *);
static int populate_VirtualDeviceBean(JNIEnv *, zpool_handle_t *,
nvlist_t *, uint64_t *p_vdev_id, VirtualDeviceBean_t *);
static int populate_LeafVirtualDeviceBean(JNIEnv *, zpool_handle_t *,
nvlist_t *, uint64_t *p_vdev_id, LeafVirtualDeviceBean_t *);
static int populate_DiskVirtualDeviceBean(JNIEnv *, zpool_handle_t *,
nvlist_t *, uint64_t *p_vdev_id, DiskVirtualDeviceBean_t *);
static int populate_SliceVirtualDeviceBean(JNIEnv *, zpool_handle_t *,
nvlist_t *, uint64_t *p_vdev_id, SliceVirtualDeviceBean_t *);
static int populate_FileVirtualDeviceBean(JNIEnv *, zpool_handle_t *,
nvlist_t *, uint64_t *p_vdev_id, FileVirtualDeviceBean_t *);
static int populate_RAIDVirtualDeviceBean(JNIEnv *, zpool_handle_t *,
nvlist_t *, uint64_t *p_vdev_id, RAIDVirtualDeviceBean_t *);
static int populate_MirrorVirtualDeviceBean(JNIEnv *, zpool_handle_t *,
nvlist_t *, uint64_t *p_vdev_id, MirrorVirtualDeviceBean_t *);
static jobject create_ImportablePoolBean(JNIEnv *, nvlist_t *);
static jobject create_DiskVirtualDeviceBean(
JNIEnv *, zpool_handle_t *, nvlist_t *, uint64_t *p_vdev_id);
static jobject create_SliceVirtualDeviceBean(
JNIEnv *, zpool_handle_t *, nvlist_t *, uint64_t *p_vdev_id);
static jobject create_FileVirtualDeviceBean(
JNIEnv *, zpool_handle_t *, nvlist_t *, uint64_t *p_vdev_id);
static jobject create_RAIDVirtualDeviceBean(
JNIEnv *, zpool_handle_t *, nvlist_t *, uint64_t *p_vdev_id);
static jobject create_MirrorVirtualDeviceBean(
JNIEnv *, zpool_handle_t *, nvlist_t *, uint64_t *p_vdev_id);
static char *find_field(const zjni_field_mapping_t *, int);
static jobject zjni_vdev_state_to_obj(JNIEnv *, vdev_state_t);
static jobject zjni_vdev_aux_to_obj(JNIEnv *, vdev_aux_t);
/*
* Static functions
*/
/* Create a ImportablePoolBean */
static void
new_ImportablePoolBean(JNIEnv *env, ImportablePoolBean_t *bean)
{
zjni_Object_t *object = (zjni_Object_t *)bean;
if (object->object == NULL) {
object->class =
(*env)->FindClass(env,
ZFSJNI_PACKAGE_DATA "ImportablePoolBean");
object->constructor =
(*env)->GetMethodID(env, object->class, "<init>", "()V");
object->object =
(*env)->NewObject(env, object->class, object->constructor);
}
new_PoolStats(env, &(bean->interface_PoolStats), object);
bean->method_setName = (*env)->GetMethodID(
env, object->class, "setName", "(Ljava/lang/String;)V");
bean->method_setId = (*env)->GetMethodID(
env, object->class, "setId", "(J)V");
}
/* Create a VirtualDeviceBean */
static void
new_VirtualDevice(JNIEnv *env, VirtualDeviceBean_t *bean)
{
zjni_Object_t *object = (zjni_Object_t *)bean;
if (object->object == NULL) {
object->class =
(*env)->FindClass(env,
ZFSJNI_PACKAGE_DATA "VirtualDeviceBean");
object->constructor =
(*env)->GetMethodID(env, object->class, "<init>", "()V");
object->object =
(*env)->NewObject(env, object->class, object->constructor);
}
new_DeviceStats(env, &(bean->interface_DeviceStats), object);
bean->method_setPoolName = (*env)->GetMethodID(
env, object->class, "setPoolName", "(Ljava/lang/String;)V");
bean->method_setParentIndex = (*env)->GetMethodID(
env, object->class, "setParentIndex", "(Ljava/lang/Long;)V");
bean->method_setIndex = (*env)->GetMethodID(
env, object->class, "setIndex", "(J)V");
}
/* Create a LeafVirtualDeviceBean */
static void
new_LeafVirtualDevice(JNIEnv *env, LeafVirtualDeviceBean_t *bean)
{
zjni_Object_t *object = (zjni_Object_t *)bean;
if (object->object == NULL) {
object->class =
(*env)->FindClass(env,
ZFSJNI_PACKAGE_DATA "LeafVirtualDeviceBean");
object->constructor =
(*env)->GetMethodID(env, object->class, "<init>", "()V");
object->object =
(*env)->NewObject(env, object->class, object->constructor);
}
new_VirtualDevice(env, (VirtualDeviceBean_t *)bean);
bean->method_setName = (*env)->GetMethodID(
env, object->class, "setName", "(Ljava/lang/String;)V");
}
/* Create a DiskVirtualDeviceBean */
static void
new_DiskVirtualDeviceBean(JNIEnv *env, DiskVirtualDeviceBean_t *bean)
{
zjni_Object_t *object = (zjni_Object_t *)bean;
if (object->object == NULL) {
object->class = (*env)->FindClass(
env, ZFSJNI_PACKAGE_DATA "DiskVirtualDeviceBean");
object->constructor =
(*env)->GetMethodID(env, object->class, "<init>", "()V");
object->object =
(*env)->NewObject(env, object->class, object->constructor);
}
new_LeafVirtualDevice(env, (LeafVirtualDeviceBean_t *)bean);
}
/* Create a SliceVirtualDeviceBean */
static void
new_SliceVirtualDeviceBean(JNIEnv *env, SliceVirtualDeviceBean_t *bean)
{
zjni_Object_t *object = (zjni_Object_t *)bean;
if (object->object == NULL) {
object->class = (*env)->FindClass(
env, ZFSJNI_PACKAGE_DATA "SliceVirtualDeviceBean");
object->constructor =
(*env)->GetMethodID(env, object->class, "<init>", "()V");
object->object =
(*env)->NewObject(env, object->class, object->constructor);
}
new_LeafVirtualDevice(env, (LeafVirtualDeviceBean_t *)bean);
}
/* Create a FileVirtualDeviceBean */
static void
new_FileVirtualDeviceBean(JNIEnv *env, FileVirtualDeviceBean_t *bean)
{
zjni_Object_t *object = (zjni_Object_t *)bean;
if (object->object == NULL) {
object->class = (*env)->FindClass(
env, ZFSJNI_PACKAGE_DATA "FileVirtualDeviceBean");
object->constructor =
(*env)->GetMethodID(env, object->class, "<init>", "()V");
object->object =
(*env)->NewObject(env, object->class, object->constructor);
}
new_LeafVirtualDevice(env, (LeafVirtualDeviceBean_t *)bean);
}
/* Create a RAIDVirtualDeviceBean */
static void
new_RAIDVirtualDeviceBean(JNIEnv *env, RAIDVirtualDeviceBean_t *bean)
{
zjni_Object_t *object = (zjni_Object_t *)bean;
if (object->object == NULL) {
object->class = (*env)->FindClass(
env, ZFSJNI_PACKAGE_DATA "RAIDVirtualDeviceBean");
object->constructor =
(*env)->GetMethodID(env, object->class, "<init>", "()V");
object->object =
(*env)->NewObject(env, object->class, object->constructor);
}
new_VirtualDevice(env, (VirtualDeviceBean_t *)bean);
bean->method_setParity = (*env)->GetMethodID(
env, object->class, "setParity", "(J)V");
}
/* Create a MirrorVirtualDeviceBean */
static void
new_MirrorVirtualDeviceBean(JNIEnv *env, MirrorVirtualDeviceBean_t *bean)
{
zjni_Object_t *object = (zjni_Object_t *)bean;
if (object->object == NULL) {
object->class = (*env)->FindClass(
env, ZFSJNI_PACKAGE_DATA "MirrorVirtualDeviceBean");
object->constructor =
(*env)->GetMethodID(env, object->class, "<init>", "()V");
object->object =
(*env)->NewObject(env, object->class, object->constructor);
}
new_VirtualDevice(env, (VirtualDeviceBean_t *)bean);
}
static int
populate_ImportablePoolBean(JNIEnv *env, ImportablePoolBean_t *bean,
nvlist_t *config)
{
char *c;
char *name;
uint64_t guid;
uint64_t state;
uint64_t version;
nvlist_t *devices;
zjni_Object_t *object = (zjni_Object_t *)bean;
PoolStatsBean_t *pool_stats = &(bean->interface_PoolStats);
DeviceStatsBean_t *dev_stats = (DeviceStatsBean_t *)pool_stats;
if (nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, &name) ||
nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &guid) ||
nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE, &state) ||
nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &version) ||
nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &devices) ||
populate_DeviceStatsBean(env, devices, dev_stats, object)) {
return (-1);
}
(*env)->CallVoidMethod(env, object->object,
bean->method_setName, (*env)->NewStringUTF(env, name));
(*env)->CallVoidMethod(env, object->object,
bean->method_setId, (jlong)guid);
(*env)->CallVoidMethod(env, object->object,
pool_stats->method_setPoolState,
zjni_pool_state_to_obj(env, (pool_state_t)state));
(*env)->CallVoidMethod(env, object->object,
pool_stats->method_setPoolStatus,
zjni_pool_status_to_obj(env, zpool_import_status(config, &c)));
(*env)->CallVoidMethod(env, object->object,
pool_stats->method_setPoolVersion, (jlong)version);
return (0);
}
static int
populate_VirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id, VirtualDeviceBean_t *bean)
{
int result;
uint64_t vdev_id;
jstring poolUTF;
zjni_Object_t *object = (zjni_Object_t *)bean;
DeviceStatsBean_t *stats = &(bean->interface_DeviceStats);
result = populate_DeviceStatsBean(env, vdev, stats, object);
if (result != 0) {
return (1);
}
/* Set pool name */
poolUTF = (*env)->NewStringUTF(env, zpool_get_name(zhp));
(*env)->CallVoidMethod(
env, object->object, bean->method_setPoolName, poolUTF);
/* Set parent vdev index */
(*env)->CallVoidMethod(
env, object->object, bean->method_setParentIndex,
p_vdev_id == NULL ? NULL :
zjni_long_to_Long(env, *p_vdev_id));
/* Get index */
result = nvlist_lookup_uint64(vdev, ZPOOL_CONFIG_GUID, &vdev_id);
if (result != 0) {
zjni_throw_exception(env,
"could not retrieve virtual device ID (pool %s)",
zpool_get_name(zhp));
return (1);
}
(*env)->CallVoidMethod(
env, object->object, bean->method_setIndex, (jlong)vdev_id);
return (0);
}
static int
populate_LeafVirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id, LeafVirtualDeviceBean_t *bean)
{
return (populate_VirtualDeviceBean(
env, zhp, vdev, p_vdev_id, (VirtualDeviceBean_t *)bean));
}
static int
populate_DiskVirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id, DiskVirtualDeviceBean_t *bean)
{
char *path;
int result = populate_LeafVirtualDeviceBean(
env, zhp, vdev, p_vdev_id, (LeafVirtualDeviceBean_t *)bean);
if (result) {
/* Must not call any more Java methods to preserve exception */
return (-1);
}
/* Set path */
result = nvlist_lookup_string(vdev, ZPOOL_CONFIG_PATH, &path);
if (result != 0) {
zjni_throw_exception(env,
"could not retrieve path from disk virtual device "
"(pool %s)", zpool_get_name(zhp));
} else {
regex_t re;
regmatch_t matches[2];
jstring pathUTF = NULL;
/* Strip off slice portion of name, if applicable */
if (regcomp(&re, "^(/dev/dsk/.*)s[0-9]+$", REG_EXTENDED) == 0) {
if (regexec(&re, path, 2, matches, 0) == 0) {
regmatch_t *match = matches + 1;
if (match->rm_so != -1 && match->rm_eo != -1) {
char *tmp = strdup(path);
if (tmp != NULL) {
char *end = tmp + match->rm_eo;
*end = '\0';
pathUTF = (*env)->NewStringUTF(
env, tmp);
free(tmp);
}
}
}
regfree(&re);
}
if (regcomp(&re, "^(/dev/dsk/.*)s[0-9]+/old$", REG_EXTENDED) ==
0) {
if (regexec(&re, path, 2, matches, 0) == 0) {
regmatch_t *match = matches + 1;
if (match->rm_so != -1 && match->rm_eo != -1) {
char *tmp = strdup(path);
if (tmp != NULL) {
(void) strcpy(tmp +
match->rm_eo, "/old");
pathUTF = (*env)->NewStringUTF(
env, tmp);
free(tmp);
}
}
}
regfree(&re);
}
if (pathUTF == NULL) {
pathUTF = (*env)->NewStringUTF(env, path);
}
(*env)->CallVoidMethod(env, ((zjni_Object_t *)bean)->object,
((LeafVirtualDeviceBean_t *)bean)->method_setName, pathUTF);
}
return (result != 0);
}
static int
populate_SliceVirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id, SliceVirtualDeviceBean_t *bean)
{
char *path;
int result = populate_LeafVirtualDeviceBean(
env, zhp, vdev, p_vdev_id, (LeafVirtualDeviceBean_t *)bean);
if (result) {
/* Must not call any more Java methods to preserve exception */
return (-1);
}
/* Set path */
result = nvlist_lookup_string(vdev, ZPOOL_CONFIG_PATH, &path);
if (result != 0) {
zjni_throw_exception(env,
"could not retrieve path from slice virtual device (pool "
"%s)", zpool_get_name(zhp));
} else {
jstring pathUTF = (*env)->NewStringUTF(env, path);
(*env)->CallVoidMethod(env, ((zjni_Object_t *)bean)->object,
((LeafVirtualDeviceBean_t *)bean)->method_setName,
pathUTF);
}
return (result != 0);
}
static int
populate_FileVirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id, FileVirtualDeviceBean_t *bean)
{
char *path;
int result = populate_LeafVirtualDeviceBean(
env, zhp, vdev, p_vdev_id, (LeafVirtualDeviceBean_t *)bean);
if (result) {
/* Must not call any more Java methods to preserve exception */
return (-1);
}
/* Set path */
result = nvlist_lookup_string(vdev, ZPOOL_CONFIG_PATH, &path);
if (result != 0) {
zjni_throw_exception(env,
"could not retrieve path from disk virtual device "
"(pool %s)", zpool_get_name(zhp));
} else {
jstring pathUTF = (*env)->NewStringUTF(env, path);
(*env)->CallVoidMethod(env, ((zjni_Object_t *)bean)->object,
((LeafVirtualDeviceBean_t *)bean)->method_setName, pathUTF);
}
return (result != 0);
}
static int
populate_RAIDVirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id, RAIDVirtualDeviceBean_t *bean)
{
return (populate_VirtualDeviceBean(env, zhp, vdev, p_vdev_id,
(VirtualDeviceBean_t *)bean));
}
static int
populate_MirrorVirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id, MirrorVirtualDeviceBean_t *bean)
{
return (populate_VirtualDeviceBean(env, zhp, vdev, p_vdev_id,
(VirtualDeviceBean_t *)bean));
}
static jobject
create_ImportablePoolBean(JNIEnv *env, nvlist_t *config)
{
int result;
ImportablePoolBean_t bean_obj = {0};
ImportablePoolBean_t *bean = &bean_obj;
/* Construct ImportablePoolBean */
new_ImportablePoolBean(env, bean);
result = populate_ImportablePoolBean(env, bean, config);
if (result) {
/* Must not call any more Java methods to preserve exception */
return (NULL);
}
return (((zjni_Object_t *)bean)->object);
}
static jobject
create_DiskVirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id)
{
int result;
DiskVirtualDeviceBean_t bean_obj = {0};
DiskVirtualDeviceBean_t *bean = &bean_obj;
/* Construct DiskVirtualDeviceBean */
new_DiskVirtualDeviceBean(env, bean);
result = populate_DiskVirtualDeviceBean(
env, zhp, vdev, p_vdev_id, bean);
if (result) {
/* Must not call any more Java methods to preserve exception */
return (NULL);
}
return (((zjni_Object_t *)bean)->object);
}
static jobject
create_SliceVirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id)
{
int result;
SliceVirtualDeviceBean_t bean_obj = {0};
SliceVirtualDeviceBean_t *bean = &bean_obj;
/* Construct SliceVirtualDeviceBean */
new_SliceVirtualDeviceBean(env, bean);
result = populate_SliceVirtualDeviceBean(
env, zhp, vdev, p_vdev_id, bean);
if (result) {
/* Must not call any more Java methods to preserve exception */
return (NULL);
}
return (((zjni_Object_t *)bean)->object);
}
static jobject
create_FileVirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id)
{
int result;
FileVirtualDeviceBean_t bean_obj = {0};
FileVirtualDeviceBean_t *bean = &bean_obj;
/* Construct FileVirtualDeviceBean */
new_FileVirtualDeviceBean(env, bean);
result = populate_FileVirtualDeviceBean(
env, zhp, vdev, p_vdev_id, bean);
if (result) {
/* Must not call any more Java methods to preserve exception */
return (NULL);
}
return (((zjni_Object_t *)bean)->object);
}
static jobject
create_RAIDVirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id)
{
int result;
uint64_t parity;
RAIDVirtualDeviceBean_t bean_obj = {0};
RAIDVirtualDeviceBean_t *bean = &bean_obj;
((zjni_Object_t *)bean)->object = NULL;
/* Construct RAIDVirtualDeviceBean */
new_RAIDVirtualDeviceBean(env, bean);
/* Set parity bit */
result = nvlist_lookup_uint64(vdev, ZPOOL_CONFIG_NPARITY,
&parity);
if (result) {
/* Default to RAID-Z1 in case of error */
parity = 1;
}
(*env)->CallVoidMethod(
env, ((zjni_Object_t *)bean)->object, bean->method_setParity,
(jlong)parity);
result = populate_RAIDVirtualDeviceBean(
env, zhp, vdev, p_vdev_id, bean);
if (result) {
/* Must not call any more Java methods to preserve exception */
return (NULL);
}
return (((zjni_Object_t *)bean)->object);
}
static jobject
create_MirrorVirtualDeviceBean(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id)
{
int result;
MirrorVirtualDeviceBean_t bean_obj = {0};
MirrorVirtualDeviceBean_t *bean = &bean_obj;
/* Construct MirrorVirtualDeviceBean */
new_MirrorVirtualDeviceBean(env, bean);
result = populate_MirrorVirtualDeviceBean(
env, zhp, vdev, p_vdev_id, bean);
if (result) {
/* Must not call any more Java methods to preserve exception */
return (NULL);
}
return (((zjni_Object_t *)bean)->object);
}
static char *
find_field(const zjni_field_mapping_t *mapping, int value) {
int i;
for (i = 0; mapping[i].name != NULL; i++) {
if (value == mapping[i].value) {
return (mapping[i].name);
}
}
return (NULL);
}
/*
* Converts a vdev_state_t to a Java DeviceStats$DeviceState object.
*/
static jobject
zjni_vdev_state_to_obj(JNIEnv *env, vdev_state_t state)
{
return (zjni_int_to_enum(env, state,
ZFSJNI_PACKAGE_DATA "DeviceStats$DeviceState",
"VDEV_STATE_UNKNOWN", vdev_state_map));
}
/*
* Converts a vdev_aux_t to a Java DeviceStats$DeviceStatus object.
*/
static jobject
zjni_vdev_aux_to_obj(JNIEnv *env, vdev_aux_t aux)
{
return (zjni_int_to_enum(env, aux,
ZFSJNI_PACKAGE_DATA "DeviceStats$DeviceStatus",
"VDEV_AUX_NONE", vdev_aux_map));
}
/*
* Package-private functions
*/
/* Create a DeviceStatsBean */
void
new_DeviceStats(JNIEnv *env, DeviceStatsBean_t *bean, zjni_Object_t *object)
{
bean->method_setSize = (*env)->GetMethodID(
env, object->class, "setSize", "(J)V");
bean->method_setReplacementSize = (*env)->GetMethodID(
env, object->class, "setReplacementSize", "(J)V");
bean->method_setUsed = (*env)->GetMethodID(
env, object->class, "setUsed", "(J)V");
bean->method_setReadBytes = (*env)->GetMethodID(
env, object->class, "setReadBytes", "(J)V");
bean->method_setWriteBytes = (*env)->GetMethodID(
env, object->class, "setWriteBytes", "(J)V");
bean->method_setReadOperations = (*env)->GetMethodID(
env, object->class, "setReadOperations", "(J)V");
bean->method_setWriteOperations = (*env)->GetMethodID(
env, object->class, "setWriteOperations", "(J)V");
bean->method_setReadErrors = (*env)->GetMethodID(
env, object->class, "setReadErrors", "(J)V");
bean->method_setWriteErrors = (*env)->GetMethodID(
env, object->class, "setWriteErrors", "(J)V");
bean->method_setChecksumErrors = (*env)->GetMethodID(
env, object->class, "setChecksumErrors", "(J)V");
bean->method_setDeviceState = (*env)->GetMethodID(
env, object->class, "setDeviceState",
"(L" ZFSJNI_PACKAGE_DATA "DeviceStats$DeviceState;)V");
bean->method_setDeviceStatus = (*env)->GetMethodID(
env, object->class, "setDeviceStatus",
"(L" ZFSJNI_PACKAGE_DATA "DeviceStats$DeviceStatus;)V");
}
/* Create a PoolStatsBean */
void
new_PoolStats(JNIEnv *env, PoolStatsBean_t *bean, zjni_Object_t *object)
{
new_DeviceStats(env, (DeviceStatsBean_t *)bean, object);
bean->method_setPoolState = (*env)->GetMethodID(
env, object->class, "setPoolState",
"(L" ZFSJNI_PACKAGE_DATA "PoolStats$PoolState;)V");
bean->method_setPoolStatus = (*env)->GetMethodID(
env, object->class, "setPoolStatus",
"(L" ZFSJNI_PACKAGE_DATA "PoolStats$PoolStatus;)V");
bean->method_setPoolVersion = (*env)->GetMethodID(
env, object->class, "setPoolVersion", "(J)V");
}
/*
* Gets the root vdev (an nvlist_t *) for the given pool.
*/
nvlist_t *
zjni_get_root_vdev(zpool_handle_t *zhp)
{
nvlist_t *root = NULL;
if (zhp != NULL) {
nvlist_t *attrs = zpool_get_config(zhp, NULL);
if (attrs != NULL) {
int result = nvlist_lookup_nvlist(
attrs, ZPOOL_CONFIG_VDEV_TREE, &root);
if (result != 0) {
root = NULL;
}
}
}
return (root);
}
/*
* Gets the vdev (an nvlist_t *) with the given vdev_id, below the
* given vdev. If the given vdev is NULL, all vdevs within the given
* pool are searched.
*
* If p_vdev_id is not NULL, it will be set to the ID of the parent
* vdev, if any, or to vdev_id_to_find if the searched-for vdev is a
* toplevel vdev.
*/
nvlist_t *
zjni_get_vdev(zpool_handle_t *zhp, nvlist_t *vdev_parent,
uint64_t vdev_id_to_find, uint64_t *p_vdev_id)
{
int result;
uint64_t id = vdev_id_to_find;
/* Was a vdev specified? */
if (vdev_parent == NULL) {
/* No -- retrieve the top-level pool vdev */
vdev_parent = zjni_get_root_vdev(zhp);
} else {
/* Get index of this vdev and compare with vdev_id_to_find */
result = nvlist_lookup_uint64(
vdev_parent, ZPOOL_CONFIG_GUID, &id);
if (result == 0 && id == vdev_id_to_find) {
return (vdev_parent);
}
}
if (vdev_parent != NULL) {
nvlist_t **children;
uint_t nelem = 0;
/* Get the vdevs under this vdev */
result = nvlist_lookup_nvlist_array(
vdev_parent, ZPOOL_CONFIG_CHILDREN, &children, &nelem);
if (result == 0) {
int i;
nvlist_t *child;
/* For each vdev child... */
for (i = 0; i < nelem; i++) {
if (p_vdev_id != NULL) {
/* Save parent vdev id */
*p_vdev_id = id;
}
child = zjni_get_vdev(zhp, children[i],
vdev_id_to_find, p_vdev_id);
if (child != NULL) {
return (child);
}
}
}
}
return (NULL);
}
jobject
zjni_get_VirtualDevice_from_vdev(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev, uint64_t *p_vdev_id)
{
jobject obj = NULL;
char *type = NULL;
int result = nvlist_lookup_string(vdev, ZPOOL_CONFIG_TYPE, &type);
if (result == 0) {
if (strcmp(type, VDEV_TYPE_DISK) == 0) {
uint64_t wholedisk;
if (nvlist_lookup_uint64(vdev, ZPOOL_CONFIG_WHOLE_DISK,
&wholedisk) == 0 && wholedisk) {
obj = create_DiskVirtualDeviceBean(
env, zhp, vdev, p_vdev_id);
} else {
obj = create_SliceVirtualDeviceBean(
env, zhp, vdev, p_vdev_id);
}
} else if (strcmp(type, VDEV_TYPE_FILE) == 0) {
obj = create_FileVirtualDeviceBean(
env, zhp, vdev, p_vdev_id);
} else if (strcmp(type, VDEV_TYPE_RAIDZ) == 0) {
obj = create_RAIDVirtualDeviceBean(
env, zhp, vdev, p_vdev_id);
} else if (strcmp(type, VDEV_TYPE_MIRROR) == 0) {
obj = create_MirrorVirtualDeviceBean(
env, zhp, vdev, p_vdev_id);
} else if (strcmp(type, VDEV_TYPE_REPLACING) == 0) {
/* Get the vdevs under this vdev */
nvlist_t **children;
uint_t nelem = 0;
int result = nvlist_lookup_nvlist_array(
vdev, ZPOOL_CONFIG_CHILDREN, &children, &nelem);
if (result == 0 && nelem > 0) {
/* Get last vdev child (replacement device) */
nvlist_t *child = children[nelem - 1];
obj = zjni_get_VirtualDevice_from_vdev(env,
zhp, child, p_vdev_id);
}
}
}
return (obj);
}
jobject
zjni_get_VirtualDevices_from_vdev(JNIEnv *env, zpool_handle_t *zhp,
nvlist_t *vdev_parent, uint64_t *p_vdev_id)
{
/* Create an array list for the vdevs */
zjni_ArrayList_t list_class = {0};
zjni_ArrayList_t *list_class_p = &list_class;
zjni_new_ArrayList(env, list_class_p);
/* Was a vdev specified? */
if (vdev_parent == NULL) {
/* No -- retrieve the top-level pool vdev */
vdev_parent = zjni_get_root_vdev(zhp);
}
if (vdev_parent != NULL) {
/* Get the vdevs under this vdev */
nvlist_t **children;
uint_t nelem = 0;
int result = nvlist_lookup_nvlist_array(
vdev_parent, ZPOOL_CONFIG_CHILDREN, &children, &nelem);
if (result == 0) {
/* For each vdev child... */
int i;
for (i = 0; i < nelem; i++) {
nvlist_t *child = children[i];
/* Create a Java object from this vdev */
jobject obj =
zjni_get_VirtualDevice_from_vdev(env,
zhp, child, p_vdev_id);
if ((*env)->ExceptionOccurred(env) != NULL) {
/*
* Must not call any more Java methods
* to preserve exception
*/
return (NULL);
}
if (obj != NULL) {
/* Add child to child vdev list */
(*env)->CallBooleanMethod(env,
((zjni_Object_t *)
list_class_p)->object,
((zjni_Collection_t *)
list_class_p)->method_add, obj);
}
}
}
}
return (zjni_Collection_to_array(
env, (zjni_Collection_t *)list_class_p,
ZFSJNI_PACKAGE_DATA "VirtualDevice"));
}
int
zjni_create_add_ImportablePool(nvlist_t *config, void *data) {
JNIEnv *env = ((zjni_ArrayCallbackData_t *)data)->env;
zjni_Collection_t *list = ((zjni_ArrayCallbackData_t *)data)->list;
/* Construct ImportablePool object */
jobject bean = create_ImportablePoolBean(env, config);
if (bean == NULL) {
return (-1);
}
/* Add bean to list */
(*env)->CallBooleanMethod(env, ((zjni_Object_t *)list)->object,
((zjni_Collection_t *)list)->method_add, bean);
return (0);
}
int
populate_DeviceStatsBean(JNIEnv *env, nvlist_t *vdev,
DeviceStatsBean_t *bean, zjni_Object_t *object)
{
uint_t c;
vdev_stat_t *vs;
int result = nvlist_lookup_uint64_array(
vdev, ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &c);
if (result != 0) {
zjni_throw_exception(env,
"could not retrieve virtual device statistics");
return (1);
}
(*env)->CallVoidMethod(env, object->object,
bean->method_setUsed, (jlong)vs->vs_alloc);
(*env)->CallVoidMethod(env, object->object,
bean->method_setSize, (jlong)vs->vs_space);
(*env)->CallVoidMethod(env, object->object,
bean->method_setReplacementSize, (jlong)vs->vs_rsize);
(*env)->CallVoidMethod(env, object->object,
bean->method_setReadBytes, (jlong)vs->vs_bytes[ZIO_TYPE_READ]);
(*env)->CallVoidMethod(env, object->object,
bean->method_setWriteBytes, (jlong)vs->vs_bytes[ZIO_TYPE_WRITE]);
(*env)->CallVoidMethod(env, object->object,
bean->method_setReadOperations, (jlong)vs->vs_ops[ZIO_TYPE_READ]);
(*env)->CallVoidMethod(env, object->object,
bean->method_setWriteOperations, (jlong)vs->vs_ops[ZIO_TYPE_WRITE]);
(*env)->CallVoidMethod(env, object->object,
bean->method_setReadErrors, (jlong)vs->vs_read_errors);
(*env)->CallVoidMethod(env, object->object,
bean->method_setWriteErrors, (jlong)vs->vs_write_errors);
(*env)->CallVoidMethod(env, object->object,
bean->method_setChecksumErrors, (jlong)vs->vs_checksum_errors);
(*env)->CallVoidMethod(env, object->object,
bean->method_setDeviceState,
zjni_vdev_state_to_obj(env, vs->vs_state));
(*env)->CallVoidMethod(env, object->object,
bean->method_setDeviceStatus,
zjni_vdev_aux_to_obj(env, vs->vs_aux));
return (0);
}
/*
* Converts a pool_state_t to a Java PoolStats$PoolState object.
*/
jobject
zjni_pool_state_to_obj(JNIEnv *env, pool_state_t state)
{
return (zjni_int_to_enum(env, state,
ZFSJNI_PACKAGE_DATA "PoolStats$PoolState",
"POOL_STATE_ACTIVE", pool_state_map));
}
/*
* Converts a zpool_status_t to a Java PoolStats$PoolStatus object.
*/
jobject
zjni_pool_status_to_obj(JNIEnv *env, zpool_status_t status)
{
return (zjni_int_to_enum(env, status,
ZFSJNI_PACKAGE_DATA "PoolStats$PoolStatus",
"ZPOOL_STATUS_OK", zpool_status_map));
}
/*
* Extern functions
*/
/*
* Iterates through each importable pool on the system. For each
* importable pool, runs the given function with the given void as the
* last arg.
*/
int
zjni_ipool_iter(int argc, char **argv, zjni_ipool_iter_f func, void *data)
{
nvlist_t *pools = zpool_find_import(g_zfs, argc, argv);
if (pools != NULL) {
nvpair_t *elem = NULL;
while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
nvlist_t *config;
if (nvpair_value_nvlist(elem, &config) != 0 ||
func(config, data)) {
return (-1);
}
}
}
return (0);
}
char *
zjni_vdev_state_to_str(vdev_state_t state) {
return (find_field(vdev_state_map, state));
}
char *
zjni_vdev_aux_to_str(vdev_aux_t aux) {
return (find_field(vdev_aux_map, aux));
}
char *
zjni_pool_state_to_str(pool_state_t state) {
return (find_field(pool_state_map, state));
}
char *
zjni_pool_status_to_str(zpool_status_t status) {
return (find_field(zpool_status_map, status));
}