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nvlist.c
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nvlist.c
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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2009-2013 The FreeBSD Foundation
* Copyright (c) 2013-2015 Mariusz Zaborski <oshogbo@FreeBSD.org>
* All rights reserved.
*
* This software was developed by Pawel Jakub Dawidek under sponsorship from
* the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/endian.h>
#include <sys/queue.h>
#ifdef _KERNEL
#include <sys/errno.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/systm.h>
#include <machine/stdarg.h>
#else
#include <sys/socket.h>
#include <errno.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "msgio.h"
#endif
#ifdef HAVE_PJDLOG
#include <pjdlog.h>
#endif
#include <sys/nv.h>
#include "nv_impl.h"
#include "nvlist_impl.h"
#include "nvpair_impl.h"
#ifndef HAVE_PJDLOG
#ifdef _KERNEL
#define PJDLOG_ASSERT(...) MPASS(__VA_ARGS__)
#define PJDLOG_RASSERT(expr, ...) KASSERT(expr, (__VA_ARGS__))
#define PJDLOG_ABORT(...) panic(__VA_ARGS__)
#else
#include <assert.h>
#define PJDLOG_ASSERT(...) assert(__VA_ARGS__)
#define PJDLOG_RASSERT(expr, ...) assert(expr)
#define PJDLOG_ABORT(...) do { \
fprintf(stderr, "%s:%u: ", __FILE__, __LINE__); \
fprintf(stderr, __VA_ARGS__); \
fprintf(stderr, "\n"); \
abort(); \
} while (0)
#endif
#endif
#define NV_FLAG_PRIVATE_MASK (NV_FLAG_BIG_ENDIAN | NV_FLAG_IN_ARRAY)
#define NV_FLAG_PUBLIC_MASK (NV_FLAG_IGNORE_CASE | NV_FLAG_NO_UNIQUE)
#define NV_FLAG_ALL_MASK (NV_FLAG_PRIVATE_MASK | NV_FLAG_PUBLIC_MASK)
#define NVLIST_MAGIC 0x6e766c /* "nvl" */
struct nvlist {
int nvl_magic;
int nvl_error;
int nvl_flags;
nvpair_t *nvl_parent;
nvpair_t *nvl_array_next;
struct nvl_head nvl_head;
};
#define NVLIST_ASSERT(nvl) do { \
PJDLOG_ASSERT((nvl) != NULL); \
PJDLOG_ASSERT((nvl)->nvl_magic == NVLIST_MAGIC); \
} while (0)
#ifdef _KERNEL
MALLOC_DEFINE(M_NVLIST, "nvlist", "kernel nvlist");
#endif
#define NVPAIR_ASSERT(nvp) nvpair_assert(nvp)
#define NVLIST_HEADER_MAGIC 0x6c
#define NVLIST_HEADER_VERSION 0x00
struct nvlist_header {
uint8_t nvlh_magic;
uint8_t nvlh_version;
uint8_t nvlh_flags;
uint64_t nvlh_descriptors;
uint64_t nvlh_size;
} __packed;
nvlist_t *
nvlist_create(int flags)
{
nvlist_t *nvl;
PJDLOG_ASSERT((flags & ~(NV_FLAG_PUBLIC_MASK)) == 0);
nvl = nv_malloc(sizeof(*nvl));
if (nvl == NULL)
return (NULL);
nvl->nvl_error = 0;
nvl->nvl_flags = flags;
nvl->nvl_parent = NULL;
nvl->nvl_array_next = NULL;
TAILQ_INIT(&nvl->nvl_head);
nvl->nvl_magic = NVLIST_MAGIC;
return (nvl);
}
void
nvlist_destroy(nvlist_t *nvl)
{
nvpair_t *nvp;
if (nvl == NULL)
return;
ERRNO_SAVE();
NVLIST_ASSERT(nvl);
while ((nvp = nvlist_first_nvpair(nvl)) != NULL) {
nvlist_remove_nvpair(nvl, nvp);
nvpair_free(nvp);
}
if (nvl->nvl_array_next != NULL)
nvpair_free_structure(nvl->nvl_array_next);
nvl->nvl_array_next = NULL;
nvl->nvl_parent = NULL;
nvl->nvl_magic = 0;
nv_free(nvl);
ERRNO_RESTORE();
}
void
nvlist_set_error(nvlist_t *nvl, int error)
{
PJDLOG_ASSERT(error != 0);
/*
* Check for error != 0 so that we don't do the wrong thing if somebody
* tries to abuse this API when asserts are disabled.
*/
if (nvl != NULL && error != 0 && nvl->nvl_error == 0)
nvl->nvl_error = error;
}
int
nvlist_error(const nvlist_t *nvl)
{
if (nvl == NULL)
return (ENOMEM);
NVLIST_ASSERT(nvl);
return (nvl->nvl_error);
}
nvpair_t *
nvlist_get_nvpair_parent(const nvlist_t *nvl)
{
NVLIST_ASSERT(nvl);
return (nvl->nvl_parent);
}
const nvlist_t *
nvlist_get_parent(const nvlist_t *nvl, void **cookiep)
{
nvpair_t *nvp;
NVLIST_ASSERT(nvl);
nvp = nvl->nvl_parent;
if (cookiep != NULL)
*cookiep = nvp;
if (nvp == NULL)
return (NULL);
return (nvpair_nvlist(nvp));
}
void
nvlist_set_parent(nvlist_t *nvl, nvpair_t *parent)
{
NVLIST_ASSERT(nvl);
nvl->nvl_parent = parent;
}
void
nvlist_set_array_next(nvlist_t *nvl, nvpair_t *ele)
{
NVLIST_ASSERT(nvl);
if (ele != NULL) {
nvl->nvl_flags |= NV_FLAG_IN_ARRAY;
} else {
nvl->nvl_flags &= ~NV_FLAG_IN_ARRAY;
nv_free(nvl->nvl_array_next);
}
nvl->nvl_array_next = ele;
}
nvpair_t *
nvlist_get_array_next_nvpair(nvlist_t *nvl)
{
NVLIST_ASSERT(nvl);
return (nvl->nvl_array_next);
}
bool
nvlist_in_array(const nvlist_t *nvl)
{
NVLIST_ASSERT(nvl);
return ((nvl->nvl_flags & NV_FLAG_IN_ARRAY) != 0);
}
const nvlist_t *
nvlist_get_array_next(const nvlist_t *nvl)
{
nvpair_t *nvp;
NVLIST_ASSERT(nvl);
nvp = nvl->nvl_array_next;
if (nvp == NULL)
return (NULL);
return (nvpair_get_nvlist(nvp));
}
const nvlist_t *
nvlist_get_pararr(const nvlist_t *nvl, void **cookiep)
{
const nvlist_t *ret;
ret = nvlist_get_array_next(nvl);
if (ret != NULL) {
if (cookiep != NULL)
*cookiep = NULL;
return (ret);
}
return (nvlist_get_parent(nvl, cookiep));
}
bool
nvlist_empty(const nvlist_t *nvl)
{
NVLIST_ASSERT(nvl);
PJDLOG_ASSERT(nvl->nvl_error == 0);
return (nvlist_first_nvpair(nvl) == NULL);
}
int
nvlist_flags(const nvlist_t *nvl)
{
NVLIST_ASSERT(nvl);
PJDLOG_ASSERT(nvl->nvl_error == 0);
return (nvl->nvl_flags & NV_FLAG_PUBLIC_MASK);
}
void
nvlist_set_flags(nvlist_t *nvl, int flags)
{
NVLIST_ASSERT(nvl);
PJDLOG_ASSERT(nvl->nvl_error == 0);
nvl->nvl_flags = flags;
}
void
nvlist_report_missing(int type, const char *name)
{
PJDLOG_ABORT("Element '%s' of type %s doesn't exist.",
name, nvpair_type_string(type));
}
static nvpair_t *
nvlist_find(const nvlist_t *nvl, int type, const char *name)
{
nvpair_t *nvp;
NVLIST_ASSERT(nvl);
PJDLOG_ASSERT(nvl->nvl_error == 0);
PJDLOG_ASSERT(type == NV_TYPE_NONE ||
(type >= NV_TYPE_FIRST && type <= NV_TYPE_LAST));
for (nvp = nvlist_first_nvpair(nvl); nvp != NULL;
nvp = nvlist_next_nvpair(nvl, nvp)) {
if (type != NV_TYPE_NONE && nvpair_type(nvp) != type)
continue;
if ((nvl->nvl_flags & NV_FLAG_IGNORE_CASE) != 0) {
if (strcasecmp(nvpair_name(nvp), name) != 0)
continue;
} else {
if (strcmp(nvpair_name(nvp), name) != 0)
continue;
}
break;
}
if (nvp == NULL)
ERRNO_SET(ENOENT);
return (nvp);
}
bool
nvlist_exists_type(const nvlist_t *nvl, const char *name, int type)
{
NVLIST_ASSERT(nvl);
PJDLOG_ASSERT(nvl->nvl_error == 0);
PJDLOG_ASSERT(type == NV_TYPE_NONE ||
(type >= NV_TYPE_FIRST && type <= NV_TYPE_LAST));
return (nvlist_find(nvl, type, name) != NULL);
}
void
nvlist_free_type(nvlist_t *nvl, const char *name, int type)
{
nvpair_t *nvp;
NVLIST_ASSERT(nvl);
PJDLOG_ASSERT(nvl->nvl_error == 0);
PJDLOG_ASSERT(type == NV_TYPE_NONE ||
(type >= NV_TYPE_FIRST && type <= NV_TYPE_LAST));
nvp = nvlist_find(nvl, type, name);
if (nvp != NULL)
nvlist_free_nvpair(nvl, nvp);
else
nvlist_report_missing(type, name);
}
nvlist_t *
nvlist_clone(const nvlist_t *nvl)
{
nvlist_t *newnvl;
nvpair_t *nvp, *newnvp;
NVLIST_ASSERT(nvl);
if (nvl->nvl_error != 0) {
ERRNO_SET(nvl->nvl_error);
return (NULL);
}
newnvl = nvlist_create(nvl->nvl_flags & NV_FLAG_PUBLIC_MASK);
for (nvp = nvlist_first_nvpair(nvl); nvp != NULL;
nvp = nvlist_next_nvpair(nvl, nvp)) {
newnvp = nvpair_clone(nvp);
if (newnvp == NULL)
break;
(void)nvlist_move_nvpair(newnvl, newnvp);
}
if (nvp != NULL) {
nvlist_destroy(newnvl);
return (NULL);
}
return (newnvl);
}
#ifndef _KERNEL
static bool
nvlist_dump_error_check(const nvlist_t *nvl, int fd, int level)
{
if (nvlist_error(nvl) != 0) {
dprintf(fd, "%*serror: %d\n", level * 4, "",
nvlist_error(nvl));
return (true);
}
return (false);
}
/*
* Dump content of nvlist.
*/
void
nvlist_dump(const nvlist_t *nvl, int fd)
{
const nvlist_t *tmpnvl;
nvpair_t *nvp, *tmpnvp;
void *cookie;
int level;
level = 0;
if (nvlist_dump_error_check(nvl, fd, level))
return;
nvp = nvlist_first_nvpair(nvl);
while (nvp != NULL) {
dprintf(fd, "%*s%s (%s):", level * 4, "", nvpair_name(nvp),
nvpair_type_string(nvpair_type(nvp)));
switch (nvpair_type(nvp)) {
case NV_TYPE_NULL:
dprintf(fd, " null\n");
break;
case NV_TYPE_BOOL:
dprintf(fd, " %s\n", nvpair_get_bool(nvp) ?
"TRUE" : "FALSE");
break;
case NV_TYPE_NUMBER:
dprintf(fd, " %ju (%jd) (0x%jx)\n",
(uintmax_t)nvpair_get_number(nvp),
(intmax_t)nvpair_get_number(nvp),
(uintmax_t)nvpair_get_number(nvp));
break;
case NV_TYPE_STRING:
dprintf(fd, " [%s]\n", nvpair_get_string(nvp));
break;
case NV_TYPE_NVLIST:
dprintf(fd, "\n");
tmpnvl = nvpair_get_nvlist(nvp);
if (nvlist_dump_error_check(tmpnvl, fd, level + 1))
break;
tmpnvp = nvlist_first_nvpair(tmpnvl);
if (tmpnvp != NULL) {
nvl = tmpnvl;
nvp = tmpnvp;
level++;
continue;
}
break;
case NV_TYPE_DESCRIPTOR:
dprintf(fd, " %d\n", nvpair_get_descriptor(nvp));
break;
case NV_TYPE_BINARY:
{
const unsigned char *binary;
unsigned int ii;
size_t size;
binary = nvpair_get_binary(nvp, &size);
dprintf(fd, " %zu ", size);
for (ii = 0; ii < size; ii++)
dprintf(fd, "%02hhx", binary[ii]);
dprintf(fd, "\n");
break;
}
case NV_TYPE_BOOL_ARRAY:
{
const bool *value;
unsigned int ii;
size_t nitems;
value = nvpair_get_bool_array(nvp, &nitems);
dprintf(fd, " [ ");
for (ii = 0; ii < nitems; ii++) {
dprintf(fd, "%s", value[ii] ? "TRUE" : "FALSE");
if (ii != nitems - 1)
dprintf(fd, ", ");
}
dprintf(fd, " ]\n");
break;
}
case NV_TYPE_STRING_ARRAY:
{
const char * const *value;
unsigned int ii;
size_t nitems;
value = nvpair_get_string_array(nvp, &nitems);
dprintf(fd, " [ ");
for (ii = 0; ii < nitems; ii++) {
if (value[ii] == NULL)
dprintf(fd, "NULL");
else
dprintf(fd, "\"%s\"", value[ii]);
if (ii != nitems - 1)
dprintf(fd, ", ");
}
dprintf(fd, " ]\n");
break;
}
case NV_TYPE_NUMBER_ARRAY:
{
const uint64_t *value;
unsigned int ii;
size_t nitems;
value = nvpair_get_number_array(nvp, &nitems);
dprintf(fd, " [ ");
for (ii = 0; ii < nitems; ii++) {
dprintf(fd, "%ju (%jd) (0x%jx)",
value[ii], value[ii], value[ii]);
if (ii != nitems - 1)
dprintf(fd, ", ");
}
dprintf(fd, " ]\n");
break;
}
case NV_TYPE_DESCRIPTOR_ARRAY:
{
const int *value;
unsigned int ii;
size_t nitems;
value = nvpair_get_descriptor_array(nvp, &nitems);
dprintf(fd, " [ ");
for (ii = 0; ii < nitems; ii++) {
dprintf(fd, "%d", value[ii]);
if (ii != nitems - 1)
dprintf(fd, ", ");
}
dprintf(fd, " ]\n");
break;
}
case NV_TYPE_NVLIST_ARRAY:
{
const nvlist_t * const *value;
unsigned int ii;
size_t nitems;
value = nvpair_get_nvlist_array(nvp, &nitems);
dprintf(fd, " %zu\n", nitems);
tmpnvl = NULL;
tmpnvp = NULL;
for (ii = 0; ii < nitems; ii++) {
if (nvlist_dump_error_check(value[ii], fd,
level + 1)) {
break;
}
if (tmpnvl == NULL) {
tmpnvp = nvlist_first_nvpair(value[ii]);
if (tmpnvp != NULL) {
tmpnvl = value[ii];
} else {
dprintf(fd, "%*s,\n",
(level + 1) * 4, "");
}
}
}
if (tmpnvp != NULL) {
nvl = tmpnvl;
nvp = tmpnvp;
level++;
continue;
}
break;
}
default:
PJDLOG_ABORT("Unknown type: %d.", nvpair_type(nvp));
}
while ((nvp = nvlist_next_nvpair(nvl, nvp)) == NULL) {
do {
cookie = NULL;
if (nvlist_in_array(nvl))
dprintf(fd, "%*s,\n", level * 4, "");
nvl = nvlist_get_pararr(nvl, &cookie);
if (nvl == NULL)
return;
if (nvlist_in_array(nvl) && cookie == NULL) {
nvp = nvlist_first_nvpair(nvl);
} else {
nvp = cookie;
level--;
}
} while (nvp == NULL);
if (nvlist_in_array(nvl) && cookie == NULL)
break;
}
}
}
void
nvlist_fdump(const nvlist_t *nvl, FILE *fp)
{
fflush(fp);
nvlist_dump(nvl, fileno(fp));
}
#endif
/*
* The function obtains size of the nvlist after nvlist_pack().
*/
size_t
nvlist_size(const nvlist_t *nvl)
{
const nvlist_t *tmpnvl;
const nvlist_t * const *nvlarray;
const nvpair_t *nvp, *tmpnvp;
void *cookie;
size_t size, nitems;
unsigned int ii;
NVLIST_ASSERT(nvl);
PJDLOG_ASSERT(nvl->nvl_error == 0);
size = sizeof(struct nvlist_header);
nvp = nvlist_first_nvpair(nvl);
while (nvp != NULL) {
size += nvpair_header_size();
size += strlen(nvpair_name(nvp)) + 1;
if (nvpair_type(nvp) == NV_TYPE_NVLIST) {
size += sizeof(struct nvlist_header);
size += nvpair_header_size() + 1;
tmpnvl = nvpair_get_nvlist(nvp);
PJDLOG_ASSERT(tmpnvl->nvl_error == 0);
tmpnvp = nvlist_first_nvpair(tmpnvl);
if (tmpnvp != NULL) {
nvl = tmpnvl;
nvp = tmpnvp;
continue;
}
} else if (nvpair_type(nvp) == NV_TYPE_NVLIST_ARRAY) {
nvlarray = nvpair_get_nvlist_array(nvp, &nitems);
PJDLOG_ASSERT(nitems > 0);
size += (nvpair_header_size() + 1) * nitems;
size += sizeof(struct nvlist_header) * nitems;
tmpnvl = NULL;
tmpnvp = NULL;
for (ii = 0; ii < nitems; ii++) {
PJDLOG_ASSERT(nvlarray[ii]->nvl_error == 0);
tmpnvp = nvlist_first_nvpair(nvlarray[ii]);
if (tmpnvp != NULL) {
tmpnvl = nvlarray[ii];
break;
}
}
if (tmpnvp != NULL) {
nvp = tmpnvp;
nvl = tmpnvl;
continue;
}
} else {
size += nvpair_size(nvp);
}
while ((nvp = nvlist_next_nvpair(nvl, nvp)) == NULL) {
do {
cookie = NULL;
nvl = nvlist_get_pararr(nvl, &cookie);
if (nvl == NULL)
goto out;
if (nvlist_in_array(nvl) && cookie == NULL) {
nvp = nvlist_first_nvpair(nvl);
} else {
nvp = cookie;
}
} while (nvp == NULL);
if (nvlist_in_array(nvl) && cookie == NULL)
break;
}
}
out:
return (size);
}
#ifndef _KERNEL
static int *
nvlist_xdescriptors(const nvlist_t *nvl, int *descs)
{
void *cookie;
nvpair_t *nvp;
int type;
NVLIST_ASSERT(nvl);
PJDLOG_ASSERT(nvl->nvl_error == 0);
cookie = NULL;
do {
while (nvlist_next(nvl, &type, &cookie) != NULL) {
nvp = cookie;
switch (type) {
case NV_TYPE_DESCRIPTOR:
*descs = nvpair_get_descriptor(nvp);
descs++;
break;
case NV_TYPE_DESCRIPTOR_ARRAY:
{
const int *value;
size_t nitems;
unsigned int ii;
value = nvpair_get_descriptor_array(nvp,
&nitems);
for (ii = 0; ii < nitems; ii++) {
*descs = value[ii];
descs++;
}
break;
}
case NV_TYPE_NVLIST:
nvl = nvpair_get_nvlist(nvp);
cookie = NULL;
break;
case NV_TYPE_NVLIST_ARRAY:
{
const nvlist_t * const *value;
size_t nitems;
value = nvpair_get_nvlist_array(nvp, &nitems);
PJDLOG_ASSERT(value != NULL);
PJDLOG_ASSERT(nitems > 0);
nvl = value[0];
cookie = NULL;
break;
}
}
}
} while ((nvl = nvlist_get_pararr(nvl, &cookie)) != NULL);
return (descs);
}
#endif
#ifndef _KERNEL
int *
nvlist_descriptors(const nvlist_t *nvl, size_t *nitemsp)
{
size_t nitems;
int *fds;
nitems = nvlist_ndescriptors(nvl);
fds = nv_malloc(sizeof(fds[0]) * (nitems + 1));
if (fds == NULL)
return (NULL);
if (nitems > 0)
nvlist_xdescriptors(nvl, fds);
fds[nitems] = -1;
if (nitemsp != NULL)
*nitemsp = nitems;
return (fds);
}
#endif
size_t
nvlist_ndescriptors(const nvlist_t *nvl)
{
#ifndef _KERNEL
void *cookie;
nvpair_t *nvp;
size_t ndescs;
int type;
NVLIST_ASSERT(nvl);
PJDLOG_ASSERT(nvl->nvl_error == 0);
ndescs = 0;
cookie = NULL;
do {
while (nvlist_next(nvl, &type, &cookie) != NULL) {
nvp = cookie;
switch (type) {
case NV_TYPE_DESCRIPTOR:
ndescs++;
break;
case NV_TYPE_NVLIST:
nvl = nvpair_get_nvlist(nvp);
cookie = NULL;
break;
case NV_TYPE_NVLIST_ARRAY:
{
const nvlist_t * const *value;
size_t nitems;
value = nvpair_get_nvlist_array(nvp, &nitems);
PJDLOG_ASSERT(value != NULL);
PJDLOG_ASSERT(nitems > 0);
nvl = value[0];
cookie = NULL;
break;
}
case NV_TYPE_DESCRIPTOR_ARRAY:
{
size_t nitems;
(void)nvpair_get_descriptor_array(nvp,
&nitems);
ndescs += nitems;
break;
}
}
}
} while ((nvl = nvlist_get_pararr(nvl, &cookie)) != NULL);
return (ndescs);
#else
return (0);
#endif
}
static unsigned char *
nvlist_pack_header(const nvlist_t *nvl, unsigned char *ptr, size_t *leftp)
{
struct nvlist_header nvlhdr;
NVLIST_ASSERT(nvl);
nvlhdr.nvlh_magic = NVLIST_HEADER_MAGIC;
nvlhdr.nvlh_version = NVLIST_HEADER_VERSION;
nvlhdr.nvlh_flags = nvl->nvl_flags;
#if BYTE_ORDER == BIG_ENDIAN
nvlhdr.nvlh_flags |= NV_FLAG_BIG_ENDIAN;
#endif
nvlhdr.nvlh_descriptors = nvlist_ndescriptors(nvl);
nvlhdr.nvlh_size = *leftp - sizeof(nvlhdr);
PJDLOG_ASSERT(*leftp >= sizeof(nvlhdr));
memcpy(ptr, &nvlhdr, sizeof(nvlhdr));
ptr += sizeof(nvlhdr);
*leftp -= sizeof(nvlhdr);
return (ptr);
}
static void *
nvlist_xpack(const nvlist_t *nvl, int64_t *fdidxp, size_t *sizep)
{
unsigned char *buf, *ptr;
size_t left, size;
const nvlist_t *tmpnvl;
nvpair_t *nvp, *tmpnvp;
void *cookie;
NVLIST_ASSERT(nvl);
if (nvl->nvl_error != 0) {
ERRNO_SET(nvl->nvl_error);
return (NULL);
}
size = nvlist_size(nvl);
buf = nv_malloc(size);
if (buf == NULL)
return (NULL);
ptr = buf;
left = size;
ptr = nvlist_pack_header(nvl, ptr, &left);
nvp = nvlist_first_nvpair(nvl);
while (nvp != NULL) {
NVPAIR_ASSERT(nvp);
nvpair_init_datasize(nvp);
ptr = nvpair_pack_header(nvp, ptr, &left);
if (ptr == NULL)
goto fail;
switch (nvpair_type(nvp)) {
case NV_TYPE_NULL:
ptr = nvpair_pack_null(nvp, ptr, &left);
break;
case NV_TYPE_BOOL:
ptr = nvpair_pack_bool(nvp, ptr, &left);
break;
case NV_TYPE_NUMBER:
ptr = nvpair_pack_number(nvp, ptr, &left);
break;
case NV_TYPE_STRING:
ptr = nvpair_pack_string(nvp, ptr, &left);
break;
case NV_TYPE_NVLIST:
tmpnvl = nvpair_get_nvlist(nvp);
ptr = nvlist_pack_header(tmpnvl, ptr, &left);
if (ptr == NULL)
goto fail;
tmpnvp = nvlist_first_nvpair(tmpnvl);
if (tmpnvp != NULL) {
nvl = tmpnvl;
nvp = tmpnvp;
continue;
}
ptr = nvpair_pack_nvlist_up(ptr, &left);
break;
#ifndef _KERNEL
case NV_TYPE_DESCRIPTOR:
ptr = nvpair_pack_descriptor(nvp, ptr, fdidxp, &left);
break;
case NV_TYPE_DESCRIPTOR_ARRAY:
ptr = nvpair_pack_descriptor_array(nvp, ptr, fdidxp,
&left);
break;
#endif
case NV_TYPE_BINARY:
ptr = nvpair_pack_binary(nvp, ptr, &left);
break;
case NV_TYPE_BOOL_ARRAY:
ptr = nvpair_pack_bool_array(nvp, ptr, &left);
break;
case NV_TYPE_NUMBER_ARRAY:
ptr = nvpair_pack_number_array(nvp, ptr, &left);
break;
case NV_TYPE_STRING_ARRAY:
ptr = nvpair_pack_string_array(nvp, ptr, &left);
break;
case NV_TYPE_NVLIST_ARRAY:
{
const nvlist_t * const * value;
size_t nitems;
unsigned int ii;
tmpnvl = NULL;
value = nvpair_get_nvlist_array(nvp, &nitems);
for (ii = 0; ii < nitems; ii++) {
ptr = nvlist_pack_header(value[ii], ptr, &left);
if (ptr == NULL)
goto out;
tmpnvp = nvlist_first_nvpair(value[ii]);
if (tmpnvp != NULL) {
tmpnvl = value[ii];
break;
}
ptr = nvpair_pack_nvlist_array_next(ptr, &left);
if (ptr == NULL)
goto out;
}
if (tmpnvl != NULL) {
nvl = tmpnvl;
nvp = tmpnvp;
continue;
}
break;
}
default:
PJDLOG_ABORT("Invalid type (%d).", nvpair_type(nvp));
}
if (ptr == NULL)
goto fail;
while ((nvp = nvlist_next_nvpair(nvl, nvp)) == NULL) {
do {
cookie = NULL;
if (nvlist_in_array(nvl)) {
ptr = nvpair_pack_nvlist_array_next(ptr,
&left);
if (ptr == NULL)
goto fail;
}
nvl = nvlist_get_pararr(nvl, &cookie);
if (nvl == NULL)