347 lines
6.8 KiB
C
347 lines
6.8 KiB
C
/*
|
|
* This file and its contents are supplied under the terms of the
|
|
* Common Development and Distribution License ("CDDL"), version 1.0.
|
|
* You may only use this file in accordance with the terms of version
|
|
* 1.0 of the CDDL.
|
|
*
|
|
* A full copy of the text of the CDDL should have accompanied this
|
|
* source. A copy of the CDDL is also available via the Internet at
|
|
* http://www.illumos.org/license/CDDL.
|
|
*/
|
|
/*
|
|
* Copyright 2020 Toomas Soome <tsoome@me.com>
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <string.h>
|
|
#include <libzfs.h>
|
|
#include <libzfsbootenv.h>
|
|
#include <sys/zfs_bootenv.h>
|
|
#include <sys/vdev_impl.h>
|
|
|
|
/*
|
|
* Get or create nvlist. If key is not NULL, get nvlist from bootenv,
|
|
* otherwise return bootenv.
|
|
*/
|
|
int
|
|
lzbe_nvlist_get(const char *pool, const char *key, void **ptr)
|
|
{
|
|
libzfs_handle_t *hdl;
|
|
zpool_handle_t *zphdl;
|
|
nvlist_t *nv;
|
|
int rv = -1;
|
|
|
|
if (pool == NULL || *pool == '\0')
|
|
return (rv);
|
|
|
|
if ((hdl = libzfs_init()) == NULL) {
|
|
return (rv);
|
|
}
|
|
|
|
zphdl = zpool_open(hdl, pool);
|
|
if (zphdl == NULL) {
|
|
libzfs_fini(hdl);
|
|
return (rv);
|
|
}
|
|
|
|
rv = zpool_get_bootenv(zphdl, &nv);
|
|
if (rv == 0) {
|
|
nvlist_t *nvl, *dup;
|
|
|
|
if (key != NULL) {
|
|
rv = nvlist_lookup_nvlist(nv, key, &nvl);
|
|
if (rv == 0) {
|
|
rv = nvlist_dup(nvl, &dup, 0);
|
|
nvlist_free(nv);
|
|
if (rv == 0)
|
|
nv = dup;
|
|
else
|
|
nv = NULL;
|
|
} else {
|
|
nvlist_free(nv);
|
|
rv = nvlist_alloc(&nv, NV_UNIQUE_NAME, 0);
|
|
}
|
|
}
|
|
*ptr = nv;
|
|
}
|
|
|
|
zpool_close(zphdl);
|
|
libzfs_fini(hdl);
|
|
return (rv);
|
|
}
|
|
|
|
int
|
|
lzbe_nvlist_set(const char *pool, const char *key, void *ptr)
|
|
{
|
|
libzfs_handle_t *hdl;
|
|
zpool_handle_t *zphdl;
|
|
nvlist_t *nv;
|
|
uint64_t version;
|
|
int rv = -1;
|
|
|
|
if (pool == NULL || *pool == '\0')
|
|
return (rv);
|
|
|
|
if ((hdl = libzfs_init()) == NULL) {
|
|
return (rv);
|
|
}
|
|
|
|
zphdl = zpool_open(hdl, pool);
|
|
if (zphdl == NULL) {
|
|
libzfs_fini(hdl);
|
|
return (rv);
|
|
}
|
|
|
|
if (key != NULL) {
|
|
rv = zpool_get_bootenv(zphdl, &nv);
|
|
if (rv == 0) {
|
|
/*
|
|
* We got the nvlist, check for version.
|
|
* if version is missing or is not VB_NVLIST,
|
|
* create new list.
|
|
*/
|
|
rv = nvlist_lookup_uint64(nv, BOOTENV_VERSION,
|
|
&version);
|
|
if (rv != 0 || version != VB_NVLIST) {
|
|
/* Drop this nvlist */
|
|
fnvlist_free(nv);
|
|
/* Create and prepare new nvlist */
|
|
nv = fnvlist_alloc();
|
|
fnvlist_add_uint64(nv, BOOTENV_VERSION,
|
|
VB_NVLIST);
|
|
}
|
|
rv = nvlist_add_nvlist(nv, key, ptr);
|
|
if (rv == 0)
|
|
rv = zpool_set_bootenv(zphdl, nv);
|
|
nvlist_free(nv);
|
|
}
|
|
} else {
|
|
rv = zpool_set_bootenv(zphdl, ptr);
|
|
}
|
|
|
|
zpool_close(zphdl);
|
|
libzfs_fini(hdl);
|
|
return (rv);
|
|
}
|
|
|
|
/*
|
|
* free nvlist we got via lzbe_nvlist_get()
|
|
*/
|
|
void
|
|
lzbe_nvlist_free(void *ptr)
|
|
{
|
|
nvlist_free(ptr);
|
|
}
|
|
|
|
static const char *typenames[] = {
|
|
"DATA_TYPE_UNKNOWN",
|
|
"DATA_TYPE_BOOLEAN",
|
|
"DATA_TYPE_BYTE",
|
|
"DATA_TYPE_INT16",
|
|
"DATA_TYPE_UINT16",
|
|
"DATA_TYPE_INT32",
|
|
"DATA_TYPE_UINT32",
|
|
"DATA_TYPE_INT64",
|
|
"DATA_TYPE_UINT64",
|
|
"DATA_TYPE_STRING",
|
|
"DATA_TYPE_BYTE_ARRAY",
|
|
"DATA_TYPE_INT16_ARRAY",
|
|
"DATA_TYPE_UINT16_ARRAY",
|
|
"DATA_TYPE_INT32_ARRAY",
|
|
"DATA_TYPE_UINT32_ARRAY",
|
|
"DATA_TYPE_INT64_ARRAY",
|
|
"DATA_TYPE_UINT64_ARRAY",
|
|
"DATA_TYPE_STRING_ARRAY",
|
|
"DATA_TYPE_HRTIME",
|
|
"DATA_TYPE_NVLIST",
|
|
"DATA_TYPE_NVLIST_ARRAY",
|
|
"DATA_TYPE_BOOLEAN_VALUE",
|
|
"DATA_TYPE_INT8",
|
|
"DATA_TYPE_UINT8",
|
|
"DATA_TYPE_BOOLEAN_ARRAY",
|
|
"DATA_TYPE_INT8_ARRAY",
|
|
"DATA_TYPE_UINT8_ARRAY"
|
|
};
|
|
|
|
static int
|
|
nvpair_type_from_name(const char *name)
|
|
{
|
|
unsigned i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(typenames); i++) {
|
|
if (strcmp(name, typenames[i]) == 0)
|
|
return (i);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Add pair defined by key, type and value into nvlist.
|
|
*/
|
|
int
|
|
lzbe_add_pair(void *ptr, const char *key, const char *type, void *value,
|
|
size_t size)
|
|
{
|
|
nvlist_t *nv = ptr;
|
|
data_type_t dt;
|
|
int rv = 0;
|
|
|
|
if (ptr == NULL || key == NULL || value == NULL)
|
|
return (rv);
|
|
|
|
if (type == NULL)
|
|
type = "DATA_TYPE_STRING";
|
|
dt = nvpair_type_from_name(type);
|
|
if (dt == DATA_TYPE_UNKNOWN)
|
|
return (EINVAL);
|
|
|
|
switch (dt) {
|
|
case DATA_TYPE_BYTE:
|
|
if (size != sizeof (uint8_t)) {
|
|
rv = EINVAL;
|
|
break;
|
|
}
|
|
rv = nvlist_add_byte(nv, key, *(uint8_t *)value);
|
|
break;
|
|
|
|
case DATA_TYPE_INT16:
|
|
if (size != sizeof (int16_t)) {
|
|
rv = EINVAL;
|
|
break;
|
|
}
|
|
rv = nvlist_add_int16(nv, key, *(int16_t *)value);
|
|
break;
|
|
|
|
case DATA_TYPE_UINT16:
|
|
if (size != sizeof (uint16_t)) {
|
|
rv = EINVAL;
|
|
break;
|
|
}
|
|
rv = nvlist_add_uint16(nv, key, *(uint16_t *)value);
|
|
break;
|
|
|
|
case DATA_TYPE_INT32:
|
|
if (size != sizeof (int32_t)) {
|
|
rv = EINVAL;
|
|
break;
|
|
}
|
|
rv = nvlist_add_int32(nv, key, *(int32_t *)value);
|
|
break;
|
|
|
|
case DATA_TYPE_UINT32:
|
|
if (size != sizeof (uint32_t)) {
|
|
rv = EINVAL;
|
|
break;
|
|
}
|
|
rv = nvlist_add_uint32(nv, key, *(uint32_t *)value);
|
|
break;
|
|
|
|
case DATA_TYPE_INT64:
|
|
if (size != sizeof (int64_t)) {
|
|
rv = EINVAL;
|
|
break;
|
|
}
|
|
rv = nvlist_add_int64(nv, key, *(int64_t *)value);
|
|
break;
|
|
|
|
case DATA_TYPE_UINT64:
|
|
if (size != sizeof (uint64_t)) {
|
|
rv = EINVAL;
|
|
break;
|
|
}
|
|
rv = nvlist_add_uint64(nv, key, *(uint64_t *)value);
|
|
break;
|
|
|
|
case DATA_TYPE_STRING:
|
|
rv = nvlist_add_string(nv, key, value);
|
|
break;
|
|
|
|
case DATA_TYPE_BYTE_ARRAY:
|
|
rv = nvlist_add_byte_array(nv, key, value, size);
|
|
break;
|
|
|
|
case DATA_TYPE_INT16_ARRAY:
|
|
rv = nvlist_add_int16_array(nv, key, value, size);
|
|
break;
|
|
|
|
case DATA_TYPE_UINT16_ARRAY:
|
|
rv = nvlist_add_uint16_array(nv, key, value, size);
|
|
break;
|
|
|
|
case DATA_TYPE_INT32_ARRAY:
|
|
rv = nvlist_add_int32_array(nv, key, value, size);
|
|
break;
|
|
|
|
case DATA_TYPE_UINT32_ARRAY:
|
|
rv = nvlist_add_uint32_array(nv, key, value, size);
|
|
break;
|
|
|
|
case DATA_TYPE_INT64_ARRAY:
|
|
rv = nvlist_add_int64_array(nv, key, value, size);
|
|
break;
|
|
|
|
case DATA_TYPE_UINT64_ARRAY:
|
|
rv = nvlist_add_uint64_array(nv, key, value, size);
|
|
break;
|
|
|
|
case DATA_TYPE_STRING_ARRAY:
|
|
rv = nvlist_add_string_array(nv, key, value, size);
|
|
break;
|
|
|
|
case DATA_TYPE_NVLIST:
|
|
rv = nvlist_add_nvlist(nv, key, (nvlist_t *)value);
|
|
break;
|
|
|
|
case DATA_TYPE_NVLIST_ARRAY:
|
|
rv = nvlist_add_nvlist_array(nv, key, value, size);
|
|
break;
|
|
|
|
case DATA_TYPE_BOOLEAN_VALUE:
|
|
if (size != sizeof (boolean_t)) {
|
|
rv = EINVAL;
|
|
break;
|
|
}
|
|
rv = nvlist_add_boolean_value(nv, key, *(boolean_t *)value);
|
|
break;
|
|
|
|
case DATA_TYPE_INT8:
|
|
if (size != sizeof (int8_t)) {
|
|
rv = EINVAL;
|
|
break;
|
|
}
|
|
rv = nvlist_add_int8(nv, key, *(int8_t *)value);
|
|
break;
|
|
|
|
case DATA_TYPE_UINT8:
|
|
if (size != sizeof (uint8_t)) {
|
|
rv = EINVAL;
|
|
break;
|
|
}
|
|
rv = nvlist_add_uint8(nv, key, *(uint8_t *)value);
|
|
break;
|
|
|
|
case DATA_TYPE_BOOLEAN_ARRAY:
|
|
rv = nvlist_add_boolean_array(nv, key, value, size);
|
|
break;
|
|
|
|
case DATA_TYPE_INT8_ARRAY:
|
|
rv = nvlist_add_int8_array(nv, key, value, size);
|
|
break;
|
|
|
|
case DATA_TYPE_UINT8_ARRAY:
|
|
rv = nvlist_add_uint8_array(nv, key, value, size);
|
|
break;
|
|
|
|
default:
|
|
return (ENOTSUP);
|
|
}
|
|
|
|
return (rv);
|
|
}
|
|
|
|
int
|
|
lzbe_remove_pair(void *ptr, const char *key)
|
|
{
|
|
|
|
return (nvlist_remove_all(ptr, key));
|
|
}
|