/*
CTDB protocol marshalling
Copyright (C) Amitay Isaacs 2015
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see .
*/
#include "replace.h"
#include "system/network.h"
#include
#include
#include "protocol.h"
#include "protocol_private.h"
#include "protocol_api.h"
size_t ctdb_int32_len(int32_t val)
{
return sizeof(int32_t);
}
void ctdb_int32_push(int32_t val, uint8_t *buf)
{
memcpy(buf, &val, sizeof(int32_t));
}
int ctdb_int32_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
int32_t *out)
{
if (buflen < sizeof(int32_t)) {
return EMSGSIZE;
}
*out = *(int32_t *)buf;
return 0;
}
size_t ctdb_uint32_len(uint32_t val)
{
return sizeof(uint32_t);
}
void ctdb_uint32_push(uint32_t val, uint8_t *buf)
{
memcpy(buf, &val, sizeof(uint32_t));
}
int ctdb_uint32_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
uint32_t *out)
{
if (buflen < sizeof(uint32_t)) {
return EMSGSIZE;
}
*out = *(uint32_t *)buf;
return 0;
}
size_t ctdb_uint64_len(uint64_t val)
{
return sizeof(uint64_t);
}
void ctdb_uint64_push(uint64_t val, uint8_t *buf)
{
memcpy(buf, &val, sizeof(uint64_t));
}
int ctdb_uint64_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
uint64_t *out)
{
if (buflen < sizeof(uint64_t)) {
return EMSGSIZE;
}
*out = *(uint64_t *)buf;
return 0;
}
size_t ctdb_double_len(double val)
{
return sizeof(double);
}
void ctdb_double_push(double val, uint8_t *buf)
{
memcpy(buf, &val, sizeof(double));
}
int ctdb_double_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
double *out)
{
if (buflen < sizeof(double)) {
return EMSGSIZE;
}
*out = *(double *)buf;
return 0;
}
size_t ctdb_uint8_array_len(struct ctdb_uint8_array *array)
{
return array->num * sizeof(uint8_t);
}
void ctdb_uint8_array_push(struct ctdb_uint8_array *array, uint8_t *buf)
{
if (array->num > 0) {
memcpy(buf, array->val, array->num * sizeof(uint8_t));
}
}
int ctdb_uint8_array_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_uint8_array **out)
{
struct ctdb_uint8_array *array;
array = talloc(mem_ctx, struct ctdb_uint8_array);
if (array == NULL) {
return ENOMEM;
}
array->num = buflen / sizeof(uint8_t);
if (array->num > 0) {
array->val = talloc_array(array, uint8_t, array->num);
if (array->val == NULL) {
talloc_free(array);
return ENOMEM;
}
memcpy(array->val, buf, buflen);
} else {
array->val = NULL;
}
*out = array;
return 0;
}
size_t ctdb_uint64_array_len(struct ctdb_uint64_array *array)
{
return array->num * sizeof(uint64_t);
}
void ctdb_uint64_array_push(struct ctdb_uint64_array *array, uint8_t *buf)
{
if (array->num > 0) {
memcpy(buf, array->val, array->num * sizeof(uint64_t));
}
}
int ctdb_uint64_array_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_uint64_array **out)
{
struct ctdb_uint64_array *array;
array = talloc(mem_ctx, struct ctdb_uint64_array);
if (array == NULL) {
return ENOMEM;
}
array->num = buflen / sizeof(uint64_t);
if (array->num > 0) {
array->val = talloc_array(array, uint64_t, array->num);
if (array->val == NULL) {
talloc_free(array);
return ENOMEM;
}
memcpy(array->val, buf, buflen);
} else {
array->val = NULL;
}
*out = array;
return 0;
}
size_t ctdb_pid_len(pid_t pid)
{
return sizeof(pid_t);
}
void ctdb_pid_push(pid_t pid, uint8_t *buf)
{
memcpy(buf, &pid, sizeof(pid_t));
}
int ctdb_pid_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
pid_t *out)
{
if (buflen < sizeof(pid_t)) {
return EMSGSIZE;
}
*out = *(pid_t *)buf;
return 0;
}
size_t ctdb_string_len(const char *str)
{
if (str == NULL) {
return 0;
}
return strlen(str) + 1;
}
void ctdb_string_push(const char *str, uint8_t *buf)
{
if (str == NULL) {
return;
}
memcpy(buf, str, strlen(str)+1);
}
int ctdb_string_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
const char **out)
{
char *str;
if (buflen == 0) {
*out = NULL;
return 0;
}
str = talloc_strndup(mem_ctx, (char *)buf, buflen);
if (str == NULL) {
return ENOMEM;
}
*out = str;
return 0;
}
struct stringn_wire {
uint32_t length;
uint8_t str[1];
};
size_t ctdb_stringn_len(const char *str)
{
return sizeof(uint32_t) + ctdb_string_len(str);
}
void ctdb_stringn_push(const char *str, uint8_t *buf)
{
struct stringn_wire *wire = (struct stringn_wire *)buf;
wire->length = ctdb_string_len(str);
ctdb_string_push(str, wire->str);
}
int ctdb_stringn_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
const char **out)
{
char *str;
struct stringn_wire *wire = (struct stringn_wire *)buf;
if (buflen < sizeof(uint32_t)) {
return EMSGSIZE;
}
if (wire->length > buflen) {
return EMSGSIZE;
}
if (sizeof(uint32_t) + wire->length < sizeof(uint32_t)) {
return EMSGSIZE;
}
if (buflen < sizeof(uint32_t) + wire->length) {
return EMSGSIZE;
}
if (wire->length == 0) {
*out = NULL;
return 0;
}
str = talloc_strndup(mem_ctx, (char *)wire->str, wire->length);
if (str == NULL) {
return ENOMEM;
}
*out = str;
return 0;
}
size_t ctdb_statistics_len(struct ctdb_statistics *stats)
{
return sizeof(struct ctdb_statistics);
}
void ctdb_statistics_push(struct ctdb_statistics *stats, uint8_t *buf)
{
memcpy(buf, stats, sizeof(struct ctdb_statistics));
}
int ctdb_statistics_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_statistics **out)
{
struct ctdb_statistics *stats;
struct ctdb_statistics *wire = (struct ctdb_statistics *)buf;
if (buflen < sizeof(struct ctdb_statistics)) {
return EMSGSIZE;
}
stats = talloc(mem_ctx, struct ctdb_statistics);
if (stats == NULL) {
return ENOMEM;
}
memcpy(stats, wire, sizeof(struct ctdb_statistics));
*out = stats;
return 0;
}
struct ctdb_statistics_list_wire {
uint32_t num;
struct ctdb_statistics stats[1];
};
size_t ctdb_statistics_list_len(struct ctdb_statistics_list *stats_list)
{
return offsetof(struct ctdb_statistics_list_wire, stats) +
stats_list->num * sizeof(struct ctdb_statistics);
}
void ctdb_statistics_list_push(struct ctdb_statistics_list *stats_list,
uint8_t *buf)
{
struct ctdb_statistics_list_wire *wire =
(struct ctdb_statistics_list_wire *)buf;
wire->num = stats_list->num;
memcpy(wire->stats, stats_list->stats,
stats_list->num * sizeof(struct ctdb_statistics));
}
int ctdb_statistics_list_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_statistics_list **out)
{
struct ctdb_statistics_list *stats_list;
struct ctdb_statistics_list_wire *wire =
(struct ctdb_statistics_list_wire *)buf;
if (buflen < offsetof(struct ctdb_statistics_list_wire, stats)) {
return EMSGSIZE;
}
if (wire->num > buflen / sizeof(struct ctdb_statistics)) {
return EMSGSIZE;
}
if (offsetof(struct ctdb_statistics_list_wire, stats) +
wire->num * sizeof(struct ctdb_statistics) <
offsetof(struct ctdb_statistics_list_wire, stats)) {
return EMSGSIZE;
}
if (buflen < offsetof(struct ctdb_statistics_list_wire, stats) +
wire->num * sizeof(struct ctdb_statistics)) {
return EMSGSIZE;
}
stats_list = talloc(mem_ctx, struct ctdb_statistics_list);
if (stats_list == NULL) {
return ENOMEM;
}
stats_list->num = wire->num;
stats_list->stats = talloc_array(stats_list, struct ctdb_statistics,
wire->num);
if (stats_list->stats == NULL) {
talloc_free(stats_list);
return ENOMEM;
}
memcpy(stats_list->stats, wire->stats,
wire->num * sizeof(struct ctdb_statistics));
*out = stats_list;
return 0;
}
struct ctdb_vnn_map_wire {
uint32_t generation;
uint32_t size;
uint32_t map[1];
};
size_t ctdb_vnn_map_len(struct ctdb_vnn_map *vnnmap)
{
return offsetof(struct ctdb_vnn_map, map) +
vnnmap->size * sizeof(uint32_t);
}
void ctdb_vnn_map_push(struct ctdb_vnn_map *vnnmap, uint8_t *buf)
{
struct ctdb_vnn_map_wire *wire = (struct ctdb_vnn_map_wire *)buf;
memcpy(wire, vnnmap, offsetof(struct ctdb_vnn_map, map));
memcpy(wire->map, vnnmap->map, vnnmap->size * sizeof(uint32_t));
}
int ctdb_vnn_map_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_vnn_map **out)
{
struct ctdb_vnn_map *vnnmap;
struct ctdb_vnn_map_wire *wire = (struct ctdb_vnn_map_wire *)buf;
if (buflen < offsetof(struct ctdb_vnn_map_wire, map)) {
return EMSGSIZE;
}
if (wire->size > buflen / sizeof(uint32_t)) {
return EMSGSIZE;
}
if (offsetof(struct ctdb_vnn_map_wire, map) +
wire->size * sizeof(uint32_t) <
offsetof(struct ctdb_vnn_map_wire, map)) {
return EMSGSIZE;
}
if (buflen < offsetof(struct ctdb_vnn_map_wire, map) +
wire->size * sizeof(uint32_t)) {
return EMSGSIZE;
}
vnnmap = talloc(mem_ctx, struct ctdb_vnn_map);
if (vnnmap == NULL) {
return ENOMEM;
}
memcpy(vnnmap, wire, offsetof(struct ctdb_vnn_map, map));
vnnmap->map = talloc_memdup(vnnmap, wire->map,
wire->size * sizeof(uint32_t));
if (vnnmap->map == NULL) {
talloc_free(vnnmap);
return ENOMEM;
}
*out = vnnmap;
return 0;
}
struct ctdb_dbid_map_wire {
uint32_t num;
struct ctdb_dbid dbs[1];
};
size_t ctdb_dbid_map_len(struct ctdb_dbid_map *dbmap)
{
return sizeof(uint32_t) + dbmap->num * sizeof(struct ctdb_dbid);
}
void ctdb_dbid_map_push(struct ctdb_dbid_map *dbmap, uint8_t *buf)
{
struct ctdb_dbid_map_wire *wire = (struct ctdb_dbid_map_wire *)buf;
wire->num = dbmap->num;
memcpy(wire->dbs, dbmap->dbs, dbmap->num * sizeof(struct ctdb_dbid));
}
int ctdb_dbid_map_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_dbid_map **out)
{
struct ctdb_dbid_map *dbmap;
struct ctdb_dbid_map_wire *wire = (struct ctdb_dbid_map_wire *)buf;
if (buflen < sizeof(uint32_t)) {
return EMSGSIZE;
}
if (wire->num > buflen / sizeof(struct ctdb_dbid)) {
return EMSGSIZE;
}
if (sizeof(uint32_t) + wire->num * sizeof(struct ctdb_dbid) <
sizeof(uint32_t)) {
return EMSGSIZE;
}
if (buflen < sizeof(uint32_t) + wire->num * sizeof(struct ctdb_dbid)) {
return EMSGSIZE;
}
dbmap = talloc(mem_ctx, struct ctdb_dbid_map);
if (dbmap == NULL) {
return ENOMEM;
}
dbmap->num = wire->num;
dbmap->dbs = talloc_memdup(dbmap, wire->dbs,
wire->num * sizeof(struct ctdb_dbid));
if (dbmap->dbs == NULL) {
talloc_free(dbmap);
return ENOMEM;
}
*out = dbmap;
return 0;
}
size_t ctdb_pulldb_len(struct ctdb_pulldb *pulldb)
{
return sizeof(struct ctdb_pulldb);
}
void ctdb_pulldb_push(struct ctdb_pulldb *pulldb, uint8_t *buf)
{
memcpy(buf, pulldb, sizeof(struct ctdb_pulldb));
}
int ctdb_pulldb_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_pulldb **out)
{
struct ctdb_pulldb *pulldb;
if (buflen < sizeof(struct ctdb_pulldb)) {
return EMSGSIZE;
}
pulldb = talloc_memdup(mem_ctx, buf, sizeof(struct ctdb_pulldb));
if (pulldb == NULL) {
return ENOMEM;
}
*out = pulldb;
return 0;
}
size_t ctdb_pulldb_ext_len(struct ctdb_pulldb_ext *pulldb)
{
return sizeof(struct ctdb_pulldb_ext);
}
void ctdb_pulldb_ext_push(struct ctdb_pulldb_ext *pulldb, uint8_t *buf)
{
memcpy(buf, pulldb, sizeof(struct ctdb_pulldb_ext));
}
int ctdb_pulldb_ext_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_pulldb_ext **out)
{
struct ctdb_pulldb_ext *pulldb;
if (buflen < sizeof(struct ctdb_pulldb_ext)) {
return EMSGSIZE;
}
pulldb = talloc_memdup(mem_ctx, buf, sizeof(struct ctdb_pulldb_ext));
if (pulldb == NULL) {
return ENOMEM;
}
*out = pulldb;
return 0;
}
size_t ctdb_ltdb_header_len(struct ctdb_ltdb_header *header)
{
return sizeof(struct ctdb_ltdb_header);
}
void ctdb_ltdb_header_push(struct ctdb_ltdb_header *header, uint8_t *buf)
{
memcpy(buf, header, sizeof(struct ctdb_ltdb_header));
}
int ctdb_ltdb_header_pull(uint8_t *buf, size_t buflen,
struct ctdb_ltdb_header *header)
{
if (buflen < sizeof(struct ctdb_ltdb_header)) {
return EMSGSIZE;
}
memcpy(header, buf, sizeof(struct ctdb_ltdb_header));
return 0;
}
int ctdb_ltdb_header_extract(TDB_DATA *data, struct ctdb_ltdb_header *header)
{
int ret;
ret = ctdb_ltdb_header_pull(data->dptr, data->dsize, header);
if (ret != 0) {
return ret;
}
data->dptr += sizeof(struct ctdb_ltdb_header);
data->dsize -= sizeof(struct ctdb_ltdb_header);
return 0;
}
struct ctdb_rec_data_wire {
uint32_t length;
uint32_t reqid;
uint32_t keylen;
uint32_t datalen;
uint8_t data[1];
};
size_t ctdb_rec_data_len(struct ctdb_rec_data *rec)
{
return offsetof(struct ctdb_rec_data_wire, data) +
rec->key.dsize + rec->data.dsize +
(rec->header == NULL ? 0 : sizeof(struct ctdb_ltdb_header));
}
void ctdb_rec_data_push(struct ctdb_rec_data *rec, uint8_t *buf)
{
struct ctdb_rec_data_wire *wire = (struct ctdb_rec_data_wire *)buf;
size_t offset;
wire->length = ctdb_rec_data_len(rec);
wire->reqid = rec->reqid;
wire->keylen = rec->key.dsize;
wire->datalen = rec->data.dsize;
if (rec->header != NULL) {
wire->datalen += sizeof(struct ctdb_ltdb_header);
}
memcpy(wire->data, rec->key.dptr, rec->key.dsize);
offset = rec->key.dsize;
if (rec->header != NULL) {
memcpy(&wire->data[offset], rec->header,
sizeof(struct ctdb_ltdb_header));
offset += sizeof(struct ctdb_ltdb_header);
}
if (rec->data.dsize > 0) {
memcpy(&wire->data[offset], rec->data.dptr, rec->data.dsize);
}
}
static int ctdb_rec_data_pull_data(uint8_t *buf, size_t buflen,
uint32_t *reqid,
struct ctdb_ltdb_header **header,
TDB_DATA *key, TDB_DATA *data,
size_t *reclen)
{
struct ctdb_rec_data_wire *wire = (struct ctdb_rec_data_wire *)buf;
size_t offset;
if (buflen < offsetof(struct ctdb_rec_data_wire, data)) {
return EMSGSIZE;
}
if (wire->keylen > buflen || wire->datalen > buflen) {
return EMSGSIZE;
}
if (offsetof(struct ctdb_rec_data_wire, data) + wire->keylen <
offsetof(struct ctdb_rec_data_wire, data)) {
return EMSGSIZE;
}
if (offsetof(struct ctdb_rec_data_wire, data) +
wire->keylen + wire->datalen <
offsetof(struct ctdb_rec_data_wire, data)) {
return EMSGSIZE;
}
if (buflen < offsetof(struct ctdb_rec_data_wire, data) +
wire->keylen + wire->datalen) {
return EMSGSIZE;
}
*reqid = wire->reqid;
key->dsize = wire->keylen;
key->dptr = wire->data;
offset = wire->keylen;
/* Always set header to NULL. If it is required, exact it using
* ctdb_rec_data_extract_header()
*/
*header = NULL;
data->dsize = wire->datalen;
data->dptr = &wire->data[offset];
*reclen = offsetof(struct ctdb_rec_data_wire, data) +
wire->keylen + wire->datalen;
return 0;
}
static int ctdb_rec_data_pull_elems(uint8_t *buf, size_t buflen,
TALLOC_CTX *mem_ctx,
struct ctdb_rec_data *out)
{
uint32_t reqid;
struct ctdb_ltdb_header *header;
TDB_DATA key, data;
size_t reclen;
int ret;
ret = ctdb_rec_data_pull_data(buf, buflen, &reqid, &header,
&key, &data, &reclen);
if (ret != 0) {
return ret;
}
out->reqid = reqid;
out->header = NULL;
out->key.dsize = key.dsize;
if (key.dsize > 0) {
out->key.dptr = talloc_memdup(mem_ctx, key.dptr, key.dsize);
if (out->key.dptr == NULL) {
return ENOMEM;
}
}
out->data.dsize = data.dsize;
if (data.dsize > 0) {
out->data.dptr = talloc_memdup(mem_ctx, data.dptr, data.dsize);
if (out->data.dptr == NULL) {
return ENOMEM;
}
}
return 0;
}
int ctdb_rec_data_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_rec_data **out)
{
struct ctdb_rec_data *rec;
int ret;
rec = talloc(mem_ctx, struct ctdb_rec_data);
if (rec == NULL) {
return ENOMEM;
}
ret = ctdb_rec_data_pull_elems(buf, buflen, rec, rec);
if (ret != 0) {
TALLOC_FREE(rec);
}
*out = rec;
return ret;
}
struct ctdb_rec_buffer_wire {
uint32_t db_id;
uint32_t count;
uint8_t data[1];
};
size_t ctdb_rec_buffer_len(struct ctdb_rec_buffer *recbuf)
{
return offsetof(struct ctdb_rec_buffer_wire, data) + recbuf->buflen;
}
void ctdb_rec_buffer_push(struct ctdb_rec_buffer *recbuf, uint8_t *buf)
{
struct ctdb_rec_buffer_wire *wire = (struct ctdb_rec_buffer_wire *)buf;
wire->db_id = recbuf->db_id;
wire->count = recbuf->count;
if (recbuf->buflen > 0) {
memcpy(wire->data, recbuf->buf, recbuf->buflen);
}
}
int ctdb_rec_buffer_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_rec_buffer **out)
{
struct ctdb_rec_buffer *recbuf;
struct ctdb_rec_buffer_wire *wire = (struct ctdb_rec_buffer_wire *)buf;
size_t offset;
if (buflen < offsetof(struct ctdb_rec_buffer_wire, data)) {
return EMSGSIZE;
}
recbuf = talloc(mem_ctx, struct ctdb_rec_buffer);
if (recbuf == NULL) {
return ENOMEM;
}
recbuf->db_id = wire->db_id;
recbuf->count = wire->count;
offset = offsetof(struct ctdb_rec_buffer_wire, data);
recbuf->buflen = buflen - offset;
recbuf->buf = talloc_memdup(recbuf, wire->data, recbuf->buflen);
if (recbuf->buf == NULL) {
talloc_free(recbuf);
return ENOMEM;
}
*out = recbuf;
return 0;
}
struct ctdb_rec_buffer *ctdb_rec_buffer_init(TALLOC_CTX *mem_ctx,
uint32_t db_id)
{
struct ctdb_rec_buffer *recbuf;
recbuf = talloc_zero(mem_ctx, struct ctdb_rec_buffer);
if (recbuf == NULL) {
return recbuf;
}
recbuf->db_id = db_id;
return recbuf;
}
int ctdb_rec_buffer_add(TALLOC_CTX *mem_ctx, struct ctdb_rec_buffer *recbuf,
uint32_t reqid, struct ctdb_ltdb_header *header,
TDB_DATA key, TDB_DATA data)
{
struct ctdb_rec_data recdata;
size_t len;
uint8_t *ptr;
recdata.reqid = reqid;
recdata.header = header;
recdata.key = key;
recdata.data = data;
len = ctdb_rec_data_len(&recdata);
ptr = talloc_realloc(mem_ctx, recbuf->buf, uint8_t,
recbuf->buflen + len);
if (ptr == NULL) {
return ENOMEM;
}
ctdb_rec_data_push(&recdata, &ptr[recbuf->buflen]);
recbuf->count++;
recbuf->buf = ptr;
recbuf->buflen += len;
return 0;
}
int ctdb_rec_buffer_traverse(struct ctdb_rec_buffer *recbuf,
ctdb_rec_parser_func_t func,
void *private_data)
{
struct ctdb_ltdb_header *header;
TDB_DATA key, data;
uint32_t reqid;
size_t offset, reclen;
int ret = 0, i;
offset = 0;
for (i=0; icount; i++) {
ret = ctdb_rec_data_pull_data(&recbuf->buf[offset],
recbuf->buflen - offset,
&reqid, &header,
&key, &data, &reclen);
if (ret != 0) {
return ret;
}
ret = func(reqid, header, key, data, private_data);
if (ret != 0) {
break;
}
offset += reclen;
}
return ret;
}
int ctdb_rec_buffer_write(struct ctdb_rec_buffer *recbuf, int fd)
{
ssize_t n;
n = write(fd, &recbuf->db_id, sizeof(uint32_t));
if (n == -1 || n != sizeof(uint32_t)) {
return (errno != 0 ? errno : EIO);
}
n = write(fd, &recbuf->count, sizeof(uint32_t));
if (n == -1 || n != sizeof(uint32_t)) {
return (errno != 0 ? errno : EIO);
}
n = write(fd, &recbuf->buflen, sizeof(size_t));
if (n == -1 || n != sizeof(size_t)) {
return (errno != 0 ? errno : EIO);
}
n = write(fd, recbuf->buf, recbuf->buflen);
if (n == -1 || n != recbuf->buflen) {
return (errno != 0 ? errno : EIO);
}
return 0;
}
int ctdb_rec_buffer_read(int fd, TALLOC_CTX *mem_ctx,
struct ctdb_rec_buffer **out)
{
struct ctdb_rec_buffer *recbuf;
ssize_t n;
recbuf = talloc(mem_ctx, struct ctdb_rec_buffer);
if (recbuf == NULL) {
return ENOMEM;
}
n = read(fd, &recbuf->db_id, sizeof(uint32_t));
if (n == -1 || n != sizeof(uint32_t)) {
return (errno != 0 ? errno : EIO);
}
n = read(fd, &recbuf->count, sizeof(uint32_t));
if (n == -1 || n != sizeof(uint32_t)) {
return (errno != 0 ? errno : EIO);
}
n = read(fd, &recbuf->buflen, sizeof(size_t));
if (n == -1 || n != sizeof(size_t)) {
return (errno != 0 ? errno : EIO);
}
recbuf->buf = talloc_size(recbuf, recbuf->buflen);
if (recbuf->buf == NULL) {
return ENOMEM;
}
n = read(fd, recbuf->buf, recbuf->buflen);
if (n == -1 || n != recbuf->buflen) {
return (errno != 0 ? errno : EIO);
}
*out = recbuf;
return 0;
}
size_t ctdb_traverse_start_len(struct ctdb_traverse_start *traverse)
{
return sizeof(struct ctdb_traverse_start);
}
void ctdb_traverse_start_push(struct ctdb_traverse_start *traverse,
uint8_t *buf)
{
memcpy(buf, traverse, sizeof(struct ctdb_traverse_start));
}
int ctdb_traverse_start_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_traverse_start **out)
{
struct ctdb_traverse_start *traverse;
if (buflen < sizeof(struct ctdb_traverse_start)) {
return EMSGSIZE;
}
traverse = talloc_memdup(mem_ctx, buf,
sizeof(struct ctdb_traverse_start));
if (traverse == NULL) {
return ENOMEM;
}
*out = traverse;
return 0;
}
size_t ctdb_traverse_all_len(struct ctdb_traverse_all *traverse)
{
return sizeof(struct ctdb_traverse_all);
}
void ctdb_traverse_all_push(struct ctdb_traverse_all *traverse, uint8_t *buf)
{
memcpy(buf, traverse, sizeof(struct ctdb_traverse_all));
}
int ctdb_traverse_all_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_traverse_all **out)
{
struct ctdb_traverse_all *traverse;
if (buflen < sizeof(struct ctdb_traverse_all)) {
return EMSGSIZE;
}
traverse = talloc_memdup(mem_ctx, buf,
sizeof(struct ctdb_traverse_all));
if (traverse == NULL) {
return ENOMEM;
}
*out = traverse;
return 0;
}
size_t ctdb_traverse_start_ext_len(struct ctdb_traverse_start_ext *traverse)
{
return sizeof(struct ctdb_traverse_start_ext);
}
void ctdb_traverse_start_ext_push(struct ctdb_traverse_start_ext *traverse,
uint8_t *buf)
{
memcpy(buf, traverse, sizeof(struct ctdb_traverse_start_ext));
}
int ctdb_traverse_start_ext_pull(uint8_t *buf, size_t buflen,
TALLOC_CTX *mem_ctx,
struct ctdb_traverse_start_ext **out)
{
struct ctdb_traverse_start_ext *traverse;
if (buflen < sizeof(struct ctdb_traverse_start_ext)) {
return EMSGSIZE;
}
traverse = talloc_memdup(mem_ctx, buf,
sizeof(struct ctdb_traverse_start_ext));
if (traverse == NULL) {
return ENOMEM;
}
*out = traverse;
return 0;
}
size_t ctdb_traverse_all_ext_len(struct ctdb_traverse_all_ext *traverse)
{
return sizeof(struct ctdb_traverse_all_ext);
}
void ctdb_traverse_all_ext_push(struct ctdb_traverse_all_ext *traverse,
uint8_t *buf)
{
memcpy(buf, traverse, sizeof(struct ctdb_traverse_all_ext));
}
int ctdb_traverse_all_ext_pull(uint8_t *buf, size_t buflen,
TALLOC_CTX *mem_ctx,
struct ctdb_traverse_all_ext **out)
{
struct ctdb_traverse_all_ext *traverse;
if (buflen < sizeof(struct ctdb_traverse_all_ext)) {
return EMSGSIZE;
}
traverse = talloc_memdup(mem_ctx, buf,
sizeof(struct ctdb_traverse_all_ext));
if (traverse == NULL) {
return ENOMEM;
}
*out = traverse;
return 0;
}
size_t ctdb_sock_addr_len(ctdb_sock_addr *addr)
{
return sizeof(ctdb_sock_addr);
}
void ctdb_sock_addr_push(ctdb_sock_addr *addr, uint8_t *buf)
{
memcpy(buf, addr, sizeof(ctdb_sock_addr));
}
static int ctdb_sock_addr_pull_elems(uint8_t *buf, size_t buflen,
TALLOC_CTX *mem_ctx, ctdb_sock_addr *out)
{
if (buflen < sizeof(ctdb_sock_addr)) {
return EMSGSIZE;
}
memcpy(out, buf, sizeof(ctdb_sock_addr));
return 0;
}
int ctdb_sock_addr_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
ctdb_sock_addr **out)
{
ctdb_sock_addr *addr;
int ret;
addr = talloc(mem_ctx, ctdb_sock_addr);
if (addr == NULL) {
return false;
}
ret = ctdb_sock_addr_pull_elems(buf, buflen, addr, addr);
if (ret != 0) {
TALLOC_FREE(addr);
}
*out = addr;
return ret;
}
size_t ctdb_connection_len(struct ctdb_connection *conn)
{
return sizeof(struct ctdb_connection);
}
void ctdb_connection_push(struct ctdb_connection *conn, uint8_t *buf)
{
memcpy(buf, conn, sizeof(struct ctdb_connection));
}
static int ctdb_connection_pull_elems(uint8_t *buf, size_t buflen,
TALLOC_CTX *mem_ctx,
struct ctdb_connection *out)
{
if (buflen < sizeof(struct ctdb_connection)) {
return EMSGSIZE;
}
memcpy(out, buf, sizeof(struct ctdb_connection));
return 0;
}
int ctdb_connection_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_connection **out)
{
struct ctdb_connection *conn;
int ret;
conn = talloc(mem_ctx, struct ctdb_connection);
if (conn == NULL) {
return ENOMEM;
}
ret = ctdb_connection_pull_elems(buf, buflen, conn, conn);
if (ret != 0) {
TALLOC_FREE(conn);
}
*out = conn;
return ret;
}
struct ctdb_tunable_wire {
uint32_t value;
uint32_t length;
uint8_t name[1];
};
size_t ctdb_tunable_len(struct ctdb_tunable *tunable)
{
return offsetof(struct ctdb_tunable_wire, name) +
strlen(tunable->name) + 1;
}
void ctdb_tunable_push(struct ctdb_tunable *tunable, uint8_t *buf)
{
struct ctdb_tunable_wire *wire = (struct ctdb_tunable_wire *)buf;
wire->value = tunable->value;
wire->length = strlen(tunable->name) + 1;
memcpy(wire->name, tunable->name, wire->length);
}
int ctdb_tunable_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_tunable **out)
{
struct ctdb_tunable *tunable;
struct ctdb_tunable_wire *wire = (struct ctdb_tunable_wire *)buf;
if (buflen < offsetof(struct ctdb_tunable_wire, name)) {
return EMSGSIZE;
}
if (wire->length > buflen) {
return EMSGSIZE;
}
if (offsetof(struct ctdb_tunable_wire, name) + wire->length <
offsetof(struct ctdb_tunable_wire, name)) {
return EMSGSIZE;
}
if (buflen < offsetof(struct ctdb_tunable_wire, name) + wire->length) {
return EMSGSIZE;
}
tunable = talloc(mem_ctx, struct ctdb_tunable);
if (tunable == NULL) {
return ENOMEM;
}
tunable->value = wire->value;
tunable->name = talloc_memdup(tunable, wire->name, wire->length);
if (tunable->name == NULL) {
talloc_free(tunable);
return ENOMEM;
}
*out = tunable;
return 0;
}
size_t ctdb_node_flag_change_len(struct ctdb_node_flag_change *flag_change)
{
return sizeof(struct ctdb_node_flag_change);
}
void ctdb_node_flag_change_push(struct ctdb_node_flag_change *flag_change,
uint8_t *buf)
{
memcpy(buf, flag_change, sizeof(struct ctdb_node_flag_change));
}
int ctdb_node_flag_change_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_node_flag_change **out)
{
struct ctdb_node_flag_change *flag_change;
if (buflen < sizeof(struct ctdb_node_flag_change)) {
return EMSGSIZE;
}
flag_change = talloc_memdup(mem_ctx, buf,
sizeof(struct ctdb_node_flag_change));
if (flag_change == NULL) {
return ENOMEM;
}
*out = flag_change;
return 0;
}
struct ctdb_var_list_wire {
uint32_t length;
char list_str[1];
};
size_t ctdb_var_list_len(struct ctdb_var_list *var_list)
{
int i;
size_t len = sizeof(uint32_t);
for (i=0; icount; i++) {
len += strlen(var_list->var[i]) + 1;
}
return len;
}
void ctdb_var_list_push(struct ctdb_var_list *var_list, uint8_t *buf)
{
struct ctdb_var_list_wire *wire = (struct ctdb_var_list_wire *)buf;
int i, n;
size_t offset = 0;
if (var_list->count > 0) {
n = sprintf(wire->list_str, "%s", var_list->var[0]);
offset += n;
}
for (i=1; icount; i++) {
n = sprintf(&wire->list_str[offset], ":%s", var_list->var[i]);
offset += n;
}
wire->length = offset + 1;
}
int ctdb_var_list_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_var_list **out)
{
struct ctdb_var_list *var_list = NULL;
struct ctdb_var_list_wire *wire = (struct ctdb_var_list_wire *)buf;
char *str, *s, *tok, *ptr;
const char **list;
if (buflen < sizeof(uint32_t)) {
return EMSGSIZE;
}
if (wire->length > buflen) {
return EMSGSIZE;
}
if (sizeof(uint32_t) + wire->length < sizeof(uint32_t)) {
return EMSGSIZE;
}
if (buflen < sizeof(uint32_t) + wire->length) {
return EMSGSIZE;
}
str = talloc_strndup(mem_ctx, (char *)wire->list_str, wire->length);
if (str == NULL) {
return ENOMEM;
}
var_list = talloc_zero(mem_ctx, struct ctdb_var_list);
if (var_list == NULL) {
goto fail;
}
s = str;
while ((tok = strtok_r(s, ":", &ptr)) != NULL) {
s = NULL;
list = talloc_realloc(var_list, var_list->var, const char *,
var_list->count+1);
if (list == NULL) {
goto fail;
}
var_list->var = list;
var_list->var[var_list->count] = talloc_strdup(var_list, tok);
if (var_list->var[var_list->count] == NULL) {
goto fail;
}
var_list->count++;
}
talloc_free(str);
*out = var_list;
return 0;
fail:
talloc_free(str);
talloc_free(var_list);
return ENOMEM;
}
size_t ctdb_tunable_list_len(struct ctdb_tunable_list *tun_list)
{
return sizeof(struct ctdb_tunable_list);
}
void ctdb_tunable_list_push(struct ctdb_tunable_list *tun_list, uint8_t *buf)
{
memcpy(buf, tun_list, sizeof(struct ctdb_tunable_list));
}
int ctdb_tunable_list_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_tunable_list **out)
{
struct ctdb_tunable_list *tun_list;
if (buflen < sizeof(struct ctdb_tunable_list)) {
return EMSGSIZE;
}
tun_list = talloc_memdup(mem_ctx, buf, sizeof(struct ctdb_tunable_list));
if (tun_list == NULL) {
return ENOMEM;
}
*out = tun_list;
return 0;
}
struct ctdb_tickle_list_wire {
ctdb_sock_addr addr;
uint32_t num;
struct ctdb_connection conn[1];
};
size_t ctdb_tickle_list_len(struct ctdb_tickle_list *tickles)
{
return offsetof(struct ctdb_tickle_list, conn) +
tickles->num * sizeof(struct ctdb_connection);
}
void ctdb_tickle_list_push(struct ctdb_tickle_list *tickles, uint8_t *buf)
{
struct ctdb_tickle_list_wire *wire =
(struct ctdb_tickle_list_wire *)buf;
size_t offset;
int i;
memcpy(&wire->addr, &tickles->addr, sizeof(ctdb_sock_addr));
wire->num = tickles->num;
offset = offsetof(struct ctdb_tickle_list_wire, conn);
for (i=0; inum; i++) {
ctdb_connection_push(&tickles->conn[i], &buf[offset]);
offset += ctdb_connection_len(&tickles->conn[i]);
}
}
int ctdb_tickle_list_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_tickle_list **out)
{
struct ctdb_tickle_list *tickles;
struct ctdb_tickle_list_wire *wire =
(struct ctdb_tickle_list_wire *)buf;
size_t offset;
int i, ret;
if (buflen < offsetof(struct ctdb_tickle_list_wire, conn)) {
return EMSGSIZE;
}
if (wire->num > buflen / sizeof(struct ctdb_connection)) {
return EMSGSIZE;
}
if (offsetof(struct ctdb_tickle_list_wire, conn) +
wire->num * sizeof(struct ctdb_connection) <
offsetof(struct ctdb_tickle_list_wire, conn)) {
return EMSGSIZE;
}
if (buflen < offsetof(struct ctdb_tickle_list_wire, conn) +
wire->num * sizeof(struct ctdb_connection)) {
return EMSGSIZE;
}
tickles = talloc(mem_ctx, struct ctdb_tickle_list);
if (tickles == NULL) {
return ENOMEM;
}
offset = offsetof(struct ctdb_tickle_list, conn);
memcpy(tickles, wire, offset);
tickles->conn = talloc_array(tickles, struct ctdb_connection,
wire->num);
if (tickles->conn == NULL) {
talloc_free(tickles);
return ENOMEM;
}
for (i=0; inum; i++) {
ret = ctdb_connection_pull_elems(&buf[offset], buflen-offset,
tickles->conn,
&tickles->conn[i]);
if (ret != 0) {
talloc_free(tickles);
return ret;
}
offset += ctdb_connection_len(&tickles->conn[i]);
}
*out = tickles;
return 0;
}
struct ctdb_addr_info_wire {
ctdb_sock_addr addr;
uint32_t mask;
uint32_t len;
char iface[1];
};
size_t ctdb_addr_info_len(struct ctdb_addr_info *arp)
{
uint32_t len;
len = offsetof(struct ctdb_addr_info_wire, iface);
if (arp->iface != NULL) {
len += strlen(arp->iface)+1;
}
return len;
}
void ctdb_addr_info_push(struct ctdb_addr_info *addr_info, uint8_t *buf)
{
struct ctdb_addr_info_wire *wire = (struct ctdb_addr_info_wire *)buf;
wire->addr = addr_info->addr;
wire->mask = addr_info->mask;
if (addr_info->iface == NULL) {
wire->len = 0;
} else {
wire->len = strlen(addr_info->iface)+1;
memcpy(wire->iface, addr_info->iface, wire->len);
}
}
int ctdb_addr_info_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_addr_info **out)
{
struct ctdb_addr_info *addr_info;
struct ctdb_addr_info_wire *wire = (struct ctdb_addr_info_wire *)buf;
if (buflen < offsetof(struct ctdb_addr_info_wire, iface)) {
return EMSGSIZE;
}
if (wire->len > buflen) {
return EMSGSIZE;
}
if (offsetof(struct ctdb_addr_info_wire, iface) + wire->len <
offsetof(struct ctdb_addr_info_wire, iface)) {
return EMSGSIZE;
}
if (buflen < offsetof(struct ctdb_addr_info_wire, iface) + wire->len) {
return EMSGSIZE;
}
addr_info = talloc(mem_ctx, struct ctdb_addr_info);
if (addr_info == NULL) {
return ENOMEM;
}
addr_info->addr = wire->addr;
addr_info->mask = wire->mask;
if (wire->len == 0) {
addr_info->iface = NULL;
} else {
addr_info->iface = talloc_strndup(addr_info, wire->iface,
wire->len);
if (addr_info->iface == NULL) {
talloc_free(addr_info);
return ENOMEM;
}
}
*out = addr_info;
return 0;
}
size_t ctdb_transdb_len(struct ctdb_transdb *transdb)
{
return sizeof(struct ctdb_transdb);
}
void ctdb_transdb_push(struct ctdb_transdb *transdb, uint8_t *buf)
{
memcpy(buf, transdb, sizeof(struct ctdb_transdb));
}
int ctdb_transdb_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_transdb **out)
{
struct ctdb_transdb *transdb;
if (buflen < sizeof(struct ctdb_transdb)) {
return EMSGSIZE;
}
transdb = talloc_memdup(mem_ctx, buf, sizeof(struct ctdb_transdb));
if (transdb == NULL) {
return ENOMEM;
}
*out = transdb;
return 0;
}
size_t ctdb_uptime_len(struct ctdb_uptime *uptime)
{
return sizeof(struct ctdb_uptime);
}
void ctdb_uptime_push(struct ctdb_uptime *uptime, uint8_t *buf)
{
memcpy(buf, uptime, sizeof(struct ctdb_uptime));
}
int ctdb_uptime_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_uptime **out)
{
struct ctdb_uptime *uptime;
if (buflen < sizeof(struct ctdb_uptime)) {
return EMSGSIZE;
}
uptime = talloc_memdup(mem_ctx, buf, sizeof(struct ctdb_uptime));
if (uptime == NULL) {
return ENOMEM;
}
*out = uptime;
return 0;
}
size_t ctdb_public_ip_len(struct ctdb_public_ip *pubip)
{
return sizeof(struct ctdb_public_ip);
}
void ctdb_public_ip_push(struct ctdb_public_ip *pubip, uint8_t *buf)
{
memcpy(buf, pubip, sizeof(struct ctdb_public_ip));
}
static int ctdb_public_ip_pull_elems(uint8_t *buf, size_t buflen,
TALLOC_CTX *mem_ctx,
struct ctdb_public_ip *out)
{
if (buflen < sizeof(struct ctdb_public_ip)) {
return EMSGSIZE;
}
memcpy(out, buf, sizeof(struct ctdb_public_ip));
return 0;
}
int ctdb_public_ip_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_public_ip **out)
{
struct ctdb_public_ip *pubip;
int ret;
pubip = talloc(mem_ctx, struct ctdb_public_ip);
if (pubip == NULL) {
return ENOMEM;
}
ret = ctdb_public_ip_pull_elems(buf, buflen, pubip, pubip);
if (ret != 0) {
TALLOC_FREE(pubip);
}
*out = pubip;
return ret;
}
struct ctdb_public_ip_list_wire {
uint32_t num;
struct ctdb_public_ip ip[1];
};
size_t ctdb_public_ip_list_len(struct ctdb_public_ip_list *pubip_list)
{
int i;
size_t len;
len = sizeof(uint32_t);
for (i=0; inum; i++) {
len += ctdb_public_ip_len(&pubip_list->ip[i]);
}
return len;
}
void ctdb_public_ip_list_push(struct ctdb_public_ip_list *pubip_list,
uint8_t *buf)
{
struct ctdb_public_ip_list_wire *wire =
(struct ctdb_public_ip_list_wire *)buf;
size_t offset;
int i;
wire->num = pubip_list->num;
offset = offsetof(struct ctdb_public_ip_list_wire, ip);
for (i=0; inum; i++) {
ctdb_public_ip_push(&pubip_list->ip[i], &buf[offset]);
offset += ctdb_public_ip_len(&pubip_list->ip[i]);
}
}
int ctdb_public_ip_list_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_public_ip_list **out)
{
struct ctdb_public_ip_list *pubip_list;
struct ctdb_public_ip_list_wire *wire =
(struct ctdb_public_ip_list_wire *)buf;
size_t offset;
int i;
bool ret;
if (buflen < sizeof(uint32_t)) {
return EMSGSIZE;
}
if (wire->num > buflen / sizeof(struct ctdb_public_ip)) {
return EMSGSIZE;
}
if (sizeof(uint32_t) + wire->num * sizeof(struct ctdb_public_ip) <
sizeof(uint32_t)) {
return EMSGSIZE;
}
if (buflen < sizeof(uint32_t) +
wire->num * sizeof(struct ctdb_public_ip)) {
return EMSGSIZE;
}
pubip_list = talloc(mem_ctx, struct ctdb_public_ip_list);
if (pubip_list == NULL) {
return ENOMEM;
}
pubip_list->num = wire->num;
if (wire->num == 0) {
pubip_list->ip = NULL;
*out = pubip_list;
return 0;
}
pubip_list->ip = talloc_array(pubip_list, struct ctdb_public_ip,
wire->num);
if (pubip_list->ip == NULL) {
talloc_free(pubip_list);
return ENOMEM;
}
offset = offsetof(struct ctdb_public_ip_list_wire, ip);
for (i=0; inum; i++) {
ret = ctdb_public_ip_pull_elems(&buf[offset], buflen-offset,
pubip_list->ip,
&pubip_list->ip[i]);
if (ret != 0) {
talloc_free(pubip_list);
return ret;
}
offset += ctdb_public_ip_len(&pubip_list->ip[i]);
}
*out = pubip_list;
return 0;
}
size_t ctdb_node_and_flags_len(struct ctdb_node_and_flags *node)
{
return sizeof(struct ctdb_node_and_flags);
}
void ctdb_node_and_flags_push(struct ctdb_node_and_flags *node, uint8_t *buf)
{
memcpy(buf, node, sizeof(struct ctdb_node_and_flags));
}
static int ctdb_node_and_flags_pull_elems(TALLOC_CTX *mem_ctx,
uint8_t *buf, size_t buflen,
struct ctdb_node_and_flags *out)
{
if (buflen < sizeof(struct ctdb_node_and_flags)) {
return EMSGSIZE;
}
memcpy(out, buf, sizeof(struct ctdb_node_and_flags));
return 0;
}
int ctdb_node_and_flags_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_node_and_flags **out)
{
struct ctdb_node_and_flags *node;
int ret;
node = talloc(mem_ctx, struct ctdb_node_and_flags);
if (node == NULL) {
return ENOMEM;
}
ret = ctdb_node_and_flags_pull_elems(node, buf, buflen, node);
if (ret != 0) {
TALLOC_FREE(node);
}
*out = node;
return ret;
}
struct ctdb_node_map_wire {
uint32_t num;
struct ctdb_node_and_flags node[1];
};
size_t ctdb_node_map_len(struct ctdb_node_map *nodemap)
{
return sizeof(uint32_t) +
nodemap->num * sizeof(struct ctdb_node_and_flags);
}
void ctdb_node_map_push(struct ctdb_node_map *nodemap, uint8_t *buf)
{
struct ctdb_node_map_wire *wire = (struct ctdb_node_map_wire *)buf;
size_t offset;
int i;
wire->num = nodemap->num;
offset = offsetof(struct ctdb_node_map_wire, node);
for (i=0; inum; i++) {
ctdb_node_and_flags_push(&nodemap->node[i], &buf[offset]);
offset += ctdb_node_and_flags_len(&nodemap->node[i]);
}
}
int ctdb_node_map_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_node_map **out)
{
struct ctdb_node_map *nodemap;
struct ctdb_node_map_wire *wire = (struct ctdb_node_map_wire *)buf;
size_t offset;
int i;
bool ret;
if (buflen < sizeof(uint32_t)) {
return EMSGSIZE;
}
if (wire->num > buflen / sizeof(struct ctdb_node_and_flags)) {
return EMSGSIZE;
}
if (sizeof(uint32_t) + wire->num * sizeof(struct ctdb_node_and_flags) <
sizeof(uint32_t)) {
return EMSGSIZE;
}
if (buflen < sizeof(uint32_t) +
wire->num * sizeof(struct ctdb_node_and_flags)) {
return EMSGSIZE;
}
nodemap = talloc(mem_ctx, struct ctdb_node_map);
if (nodemap == NULL) {
return ENOMEM;
}
nodemap->num = wire->num;
nodemap->node = talloc_array(nodemap, struct ctdb_node_and_flags,
wire->num);
if (nodemap->node == NULL) {
talloc_free(nodemap);
return ENOMEM;
}
offset = offsetof(struct ctdb_node_map_wire, node);
for (i=0; inum; i++) {
ret = ctdb_node_and_flags_pull_elems(nodemap->node,
&buf[offset],
buflen-offset,
&nodemap->node[i]);
if (ret != 0) {
talloc_free(nodemap);
return ret;
}
offset += ctdb_node_and_flags_len(&nodemap->node[i]);
}
*out = nodemap;
return 0;
}
size_t ctdb_script_len(struct ctdb_script *script)
{
return sizeof(struct ctdb_script);
}
void ctdb_script_push(struct ctdb_script *script, uint8_t *buf)
{
memcpy(buf, script, sizeof(struct ctdb_script));
}
static int ctdb_script_pull_elems(uint8_t *buf, size_t buflen,
TALLOC_CTX *mem_ctx,
struct ctdb_script *out)
{
if (buflen < sizeof(struct ctdb_script)) {
return EMSGSIZE;
}
memcpy(out, buf, sizeof(struct ctdb_script));
return 0;
}
int ctdb_script_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_script **out)
{
struct ctdb_script *script;
int ret;
script = talloc(mem_ctx, struct ctdb_script);
if (script == NULL) {
return ENOMEM;
}
ret = ctdb_script_pull_elems(buf, buflen, script, script);
if (ret != 0) {
TALLOC_FREE(script);
}
*out = script;
return ret;
}
struct ctdb_script_list_wire {
uint32_t num_scripts;
struct ctdb_script script[1];
};
size_t ctdb_script_list_len(struct ctdb_script_list *script_list)
{
int i;
size_t len;
if (script_list == NULL) {
return 0;
}
len = offsetof(struct ctdb_script_list_wire, script);
for (i=0; inum_scripts; i++) {
len += ctdb_script_len(&script_list->script[i]);
}
return len;
}
void ctdb_script_list_push(struct ctdb_script_list *script_list, uint8_t *buf)
{
struct ctdb_script_list_wire *wire =
(struct ctdb_script_list_wire *)buf;
size_t offset;
int i;
if (script_list == NULL) {
return;
}
wire->num_scripts = script_list->num_scripts;
offset = offsetof(struct ctdb_script_list_wire, script);
for (i=0; inum_scripts; i++) {
ctdb_script_push(&script_list->script[i], &buf[offset]);
offset += ctdb_script_len(&script_list->script[i]);
}
}
int ctdb_script_list_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_script_list **out)
{
struct ctdb_script_list *script_list;
struct ctdb_script_list_wire *wire =
(struct ctdb_script_list_wire *)buf;
size_t offset;
int i;
bool ret;
/* If event scripts have never been run, the result will be NULL */
if (buflen == 0) {
*out = NULL;
return 0;
}
offset = offsetof(struct ctdb_script_list_wire, script);
if (buflen < offset) {
return EMSGSIZE;
}
if (wire->num_scripts > buflen / sizeof(struct ctdb_script)) {
return EMSGSIZE;
}
if (offset + wire->num_scripts * sizeof(struct ctdb_script) < offset) {
return EMSGSIZE;
}
if (buflen < offset + wire->num_scripts * sizeof(struct ctdb_script)) {
return EMSGSIZE;
}
script_list = talloc(mem_ctx, struct ctdb_script_list);
if (script_list == NULL) {
return ENOMEM;
}
script_list->num_scripts = wire->num_scripts;
script_list->script = talloc_array(script_list, struct ctdb_script,
wire->num_scripts);
if (script_list->script == NULL) {
talloc_free(script_list);
return ENOMEM;
}
for (i=0; inum_scripts; i++) {
ret = ctdb_script_pull_elems(&buf[offset], buflen-offset,
script_list->script,
&script_list->script[i]);
if (ret != 0) {
talloc_free(script_list);
return ret;
}
offset += ctdb_script_len(&script_list->script[i]);
}
*out = script_list;
return 0;
}
size_t ctdb_ban_state_len(struct ctdb_ban_state *ban_state)
{
return sizeof(struct ctdb_ban_state);
}
void ctdb_ban_state_push(struct ctdb_ban_state *ban_state, uint8_t *buf)
{
memcpy(buf, ban_state, sizeof(struct ctdb_ban_state));
}
int ctdb_ban_state_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_ban_state **out)
{
struct ctdb_ban_state *ban_state;
if (buflen < sizeof(struct ctdb_ban_state)) {
return EMSGSIZE;
}
ban_state = talloc_memdup(mem_ctx, buf, sizeof(struct ctdb_ban_state));
if (ban_state == NULL) {
return ENOMEM;
}
*out = ban_state;
return 0;
}
struct ctdb_notify_data_wire {
uint64_t srvid;
uint32_t len;
uint8_t data[1];
};
size_t ctdb_notify_data_len(struct ctdb_notify_data *notify)
{
return offsetof(struct ctdb_notify_data_wire, data) +
notify->data.dsize;
}
void ctdb_notify_data_push(struct ctdb_notify_data *notify, uint8_t *buf)
{
struct ctdb_notify_data_wire *wire =
(struct ctdb_notify_data_wire *)buf;
wire->srvid = notify->srvid;
wire->len = notify->data.dsize;
memcpy(wire->data, notify->data.dptr, notify->data.dsize);
}
int ctdb_notify_data_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_notify_data **out)
{
struct ctdb_notify_data *notify;
struct ctdb_notify_data_wire *wire =
(struct ctdb_notify_data_wire *)buf;
if (buflen < offsetof(struct ctdb_notify_data_wire, data)) {
return EMSGSIZE;
}
if (wire->len > buflen) {
return EMSGSIZE;
}
if (offsetof(struct ctdb_notify_data_wire, data) + wire->len <
offsetof(struct ctdb_notify_data_wire, data)) {
return EMSGSIZE;
}
if (buflen < offsetof(struct ctdb_notify_data_wire, data) + wire->len) {
return EMSGSIZE;
}
notify = talloc(mem_ctx, struct ctdb_notify_data);
if (notify == NULL) {
return ENOMEM;
}
notify->srvid = wire->srvid;
notify->data.dsize = wire->len;
notify->data.dptr = talloc_memdup(notify, wire->data, wire->len);
if (notify->data.dptr == NULL) {
talloc_free(notify);
return ENOMEM;
}
*out = notify;
return 0;
}
size_t ctdb_iface_len(struct ctdb_iface *iface)
{
return sizeof(struct ctdb_iface);
}
void ctdb_iface_push(struct ctdb_iface *iface, uint8_t *buf)
{
memcpy(buf, iface, sizeof(struct ctdb_iface));
}
static int ctdb_iface_pull_elems(uint8_t *buf, size_t buflen,
TALLOC_CTX *mem_ctx,
struct ctdb_iface *out)
{
if (buflen < sizeof(struct ctdb_iface)) {
return EMSGSIZE;
}
memcpy(out, buf, sizeof(struct ctdb_iface));
return 0;
}
int ctdb_iface_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_iface **out)
{
struct ctdb_iface *iface;
int ret;
iface = talloc(mem_ctx, struct ctdb_iface);
if (iface == NULL) {
return ENOMEM;
}
ret = ctdb_iface_pull_elems(buf, buflen, iface, iface);
if (ret != 0) {
TALLOC_FREE(iface);
}
*out = iface;
return ret;
}
struct ctdb_iface_list_wire {
uint32_t num;
struct ctdb_iface iface[1];
};
size_t ctdb_iface_list_len(struct ctdb_iface_list *iface_list)
{
return sizeof(uint32_t) +
iface_list->num * sizeof(struct ctdb_iface);
}
void ctdb_iface_list_push(struct ctdb_iface_list *iface_list, uint8_t *buf)
{
struct ctdb_iface_list_wire *wire =
(struct ctdb_iface_list_wire *)buf;
wire->num = iface_list->num;
memcpy(wire->iface, iface_list->iface,
iface_list->num * sizeof(struct ctdb_iface));
}
int ctdb_iface_list_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_iface_list **out)
{
struct ctdb_iface_list *iface_list;
struct ctdb_iface_list_wire *wire =
(struct ctdb_iface_list_wire *)buf;
if (buflen < sizeof(uint32_t)) {
return EMSGSIZE;
}
if (wire->num > buflen / sizeof(struct ctdb_iface)) {
return EMSGSIZE;
}
if (sizeof(uint32_t) + wire->num * sizeof(struct ctdb_iface) <
sizeof(uint32_t)) {
return EMSGSIZE;
}
if (buflen < sizeof(uint32_t) + wire->num * sizeof(struct ctdb_iface)) {
return EMSGSIZE;
}
iface_list = talloc(mem_ctx, struct ctdb_iface_list);
if (iface_list == NULL) {
return ENOMEM;
}
iface_list->num = wire->num;
iface_list->iface = talloc_array(iface_list, struct ctdb_iface,
wire->num);
if (iface_list->iface == NULL) {
talloc_free(iface_list);
return ENOMEM;
}
memcpy(iface_list->iface, wire->iface,
wire->num * sizeof(struct ctdb_iface));
*out = iface_list;
return 0;
}
struct ctdb_public_ip_info_wire {
struct ctdb_public_ip ip;
uint32_t active_idx;
uint32_t num;
struct ctdb_iface ifaces[1];
};
size_t ctdb_public_ip_info_len(struct ctdb_public_ip_info *ipinfo)
{
return offsetof(struct ctdb_public_ip_info_wire, num) +
ctdb_iface_list_len(ipinfo->ifaces);
}
void ctdb_public_ip_info_push(struct ctdb_public_ip_info *ipinfo, uint8_t *buf)
{
struct ctdb_public_ip_info_wire *wire =
(struct ctdb_public_ip_info_wire *)buf;
size_t offset;
offset = offsetof(struct ctdb_public_ip_info_wire, num);
memcpy(wire, ipinfo, offset);
wire->num = ipinfo->ifaces->num;
memcpy(wire->ifaces, ipinfo->ifaces->iface,
ipinfo->ifaces->num * sizeof(struct ctdb_iface));
}
int ctdb_public_ip_info_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_public_ip_info **out)
{
struct ctdb_public_ip_info *ipinfo;
struct ctdb_public_ip_info_wire *wire =
(struct ctdb_public_ip_info_wire *)buf;
if (buflen < offsetof(struct ctdb_public_ip_info_wire, ifaces)) {
return EMSGSIZE;
}
if (wire->num > buflen / sizeof(struct ctdb_iface)) {
return EMSGSIZE;
}
if (offsetof(struct ctdb_public_ip_info_wire, ifaces) +
wire->num * sizeof(struct ctdb_iface) <
offsetof(struct ctdb_public_ip_info_wire, ifaces)) {
return EMSGSIZE;
}
if (buflen < offsetof(struct ctdb_public_ip_info_wire, ifaces) +
wire->num * sizeof(struct ctdb_iface)) {
return EMSGSIZE;
}
ipinfo = talloc(mem_ctx, struct ctdb_public_ip_info);
if (ipinfo == NULL) {
return ENOMEM;
}
memcpy(ipinfo, wire, offsetof(struct ctdb_public_ip_info_wire, num));
ipinfo->ifaces = talloc(ipinfo, struct ctdb_iface_list);
if (ipinfo->ifaces == NULL) {
talloc_free(ipinfo);
return ENOMEM;
}
ipinfo->ifaces->num = wire->num;
ipinfo->ifaces->iface = talloc_array(ipinfo->ifaces, struct ctdb_iface,
wire->num);
if (ipinfo->ifaces->iface == NULL) {
talloc_free(ipinfo);
return ENOMEM;
}
memcpy(ipinfo->ifaces->iface, wire->ifaces,
wire->num * sizeof(struct ctdb_iface));
*out = ipinfo;
return 0;
}
struct ctdb_key_data_wire {
uint32_t db_id;
struct ctdb_ltdb_header header;
uint32_t keylen;
uint8_t key[1];
};
size_t ctdb_key_data_len(struct ctdb_key_data *key)
{
return offsetof(struct ctdb_key_data_wire, key) + key->key.dsize;
}
void ctdb_key_data_push(struct ctdb_key_data *key, uint8_t *buf)
{
struct ctdb_key_data_wire *wire = (struct ctdb_key_data_wire *)buf;
memcpy(wire, key, offsetof(struct ctdb_key_data, key));
wire->keylen = key->key.dsize;
memcpy(wire->key, key->key.dptr, key->key.dsize);
}
int ctdb_key_data_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_key_data **out)
{
struct ctdb_key_data *key_data;
struct ctdb_key_data_wire *wire = (struct ctdb_key_data_wire *)buf;
if (buflen < offsetof(struct ctdb_key_data_wire, key)) {
return EMSGSIZE;
}
if (wire->keylen > buflen) {
return EMSGSIZE;
}
if (offsetof(struct ctdb_key_data_wire, key) + wire->keylen <
offsetof(struct ctdb_key_data_wire, key)) {
return EMSGSIZE;
}
if (buflen < offsetof(struct ctdb_key_data_wire, key) + wire->keylen) {
return EMSGSIZE;
}
key_data = talloc(mem_ctx, struct ctdb_key_data);
if (key_data == NULL) {
return ENOMEM;
}
memcpy(key_data, wire, offsetof(struct ctdb_key_data, key));
key_data->key.dsize = wire->keylen;
key_data->key.dptr = talloc_memdup(key_data, wire->key, wire->keylen);
if (key_data->key.dptr == NULL) {
talloc_free(key_data);
return ENOMEM;
}
*out = key_data;
return 0;
}
struct ctdb_db_statistics_wire {
struct ctdb_db_statistics dbstats;
char hot_keys_wire[1];
};
size_t ctdb_db_statistics_len(struct ctdb_db_statistics *dbstats)
{
size_t len;
int i;
len = sizeof(struct ctdb_db_statistics);
for (i=0; ihot_keys[i].key.dsize;
}
return len;
}
void ctdb_db_statistics_push(struct ctdb_db_statistics *dbstats, void *buf)
{
struct ctdb_db_statistics_wire *wire =
(struct ctdb_db_statistics_wire *)buf;
size_t offset;
int i;
dbstats->num_hot_keys = MAX_HOT_KEYS;
memcpy(wire, dbstats, sizeof(struct ctdb_db_statistics));
offset = 0;
for (i=0; ihot_keys_wire[offset],
dbstats->hot_keys[i].key.dptr,
dbstats->hot_keys[i].key.dsize);
offset += dbstats->hot_keys[i].key.dsize;
}
}
int ctdb_db_statistics_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_db_statistics **out)
{
struct ctdb_db_statistics *dbstats;
struct ctdb_db_statistics_wire *wire =
(struct ctdb_db_statistics_wire *)buf;
size_t offset;
int i;
if (buflen < sizeof(struct ctdb_db_statistics)) {
return EMSGSIZE;
}
offset = 0;
for (i=0; idbstats.num_hot_keys; i++) {
if (wire->dbstats.hot_keys[i].key.dsize > buflen) {
return EMSGSIZE;
}
if (offset + wire->dbstats.hot_keys[i].key.dsize < offset) {
return EMSGSIZE;
}
offset += wire->dbstats.hot_keys[i].key.dsize;
if (offset > buflen) {
return EMSGSIZE;
}
}
if (sizeof(struct ctdb_db_statistics) + offset <
sizeof(struct ctdb_db_statistics)) {
return EMSGSIZE;
}
if (buflen < sizeof(struct ctdb_db_statistics) + offset) {
return EMSGSIZE;
}
dbstats = talloc(mem_ctx, struct ctdb_db_statistics);
if (dbstats == NULL) {
return ENOMEM;
}
memcpy(dbstats, wire, sizeof(struct ctdb_db_statistics));
offset = 0;
for (i=0; idbstats.num_hot_keys; i++) {
uint8_t *ptr;
size_t key_size;
key_size = dbstats->hot_keys[i].key.dsize;
ptr = talloc_memdup(mem_ctx, &wire->hot_keys_wire[offset],
key_size);
if (ptr == NULL) {
talloc_free(dbstats);
return ENOMEM;
}
dbstats->hot_keys[i].key.dptr = ptr;
offset += key_size;
}
*out = dbstats;
return 0;
}
size_t ctdb_pid_srvid_len(struct ctdb_pid_srvid *in)
{
return ctdb_pid_len(in->pid) +
ctdb_uint64_len(in->srvid);
}
void ctdb_pid_srvid_push(struct ctdb_pid_srvid *in, uint8_t *buf)
{
size_t offset = 0;
ctdb_pid_push(in->pid, buf+offset);
offset += ctdb_pid_len(in->pid);
ctdb_uint64_push(in->srvid, buf+offset);
}
int ctdb_pid_srvid_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_pid_srvid **out)
{
struct ctdb_pid_srvid *val;
size_t offset = 0;
int ret;
val = talloc(mem_ctx, struct ctdb_pid_srvid);
if (val == NULL) {
return ENOMEM;
}
ret = ctdb_pid_pull(buf+offset, buflen-offset, val, &val->pid);
if (ret != 0) {
goto fail;
}
offset += ctdb_pid_len(val->pid);
ret = ctdb_uint64_pull(buf+offset, buflen-offset, val, &val->srvid);
if (ret != 0) {
goto fail;
}
*out = val;
return 0;
fail:
talloc_free(val);
return ret;
}
size_t ctdb_election_message_len(struct ctdb_election_message *election)
{
return sizeof(struct ctdb_election_message);
}
void ctdb_election_message_push(struct ctdb_election_message *election,
uint8_t *buf)
{
memcpy(buf, election, sizeof(struct ctdb_election_message));
}
int ctdb_election_message_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_election_message **out)
{
struct ctdb_election_message *election;
if (buflen < sizeof(struct ctdb_election_message)) {
return EMSGSIZE;
}
election = talloc_memdup(mem_ctx, buf,
sizeof(struct ctdb_election_message));
if (election == NULL) {
return ENOMEM;
}
*out = election;
return 0;
}
size_t ctdb_srvid_message_len(struct ctdb_srvid_message *msg)
{
return sizeof(struct ctdb_srvid_message);
}
void ctdb_srvid_message_push(struct ctdb_srvid_message *msg, uint8_t *buf)
{
memcpy(buf, msg, sizeof(struct ctdb_srvid_message));
}
int ctdb_srvid_message_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_srvid_message **out)
{
struct ctdb_srvid_message *msg;
if (buflen < sizeof(struct ctdb_srvid_message)) {
return EMSGSIZE;
}
msg = talloc_memdup(mem_ctx, buf, sizeof(struct ctdb_srvid_message));
if (msg == NULL) {
return ENOMEM;
}
*out = msg;
return 0;
}
size_t ctdb_disable_message_len(struct ctdb_disable_message *disable)
{
return sizeof(struct ctdb_disable_message);
}
void ctdb_disable_message_push(struct ctdb_disable_message *disable,
uint8_t *buf)
{
memcpy(buf, disable, sizeof(struct ctdb_disable_message));
}
int ctdb_disable_message_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_disable_message **out)
{
struct ctdb_disable_message *disable;
if (buflen < sizeof(struct ctdb_disable_message)) {
return EMSGSIZE;
}
disable = talloc_memdup(mem_ctx, buf,
sizeof(struct ctdb_disable_message));
if (disable == NULL) {
return ENOMEM;
}
*out = disable;
return 0;
}
size_t ctdb_tdb_data_len(TDB_DATA data)
{
return data.dsize;
}
void ctdb_tdb_data_push(TDB_DATA data, uint8_t *buf)
{
if (data.dsize > 0) {
memcpy(buf, data.dptr, data.dsize);
}
}
int ctdb_tdb_data_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
TDB_DATA *out)
{
TDB_DATA data;
data.dsize = buflen;
if (data.dsize > 0) {
data.dptr = talloc_memdup(mem_ctx, buf, buflen);
if (data.dptr == NULL) {
return ENOMEM;
}
} else {
data.dptr = NULL;
}
*out = data;
return 0;
}
size_t ctdb_server_id_len(struct ctdb_server_id *sid)
{
return sizeof(struct ctdb_server_id);
}
void ctdb_server_id_push(struct ctdb_server_id *sid, uint8_t *buf)
{
memcpy(buf, sid, sizeof(struct ctdb_server_id));
}
int ctdb_server_id_pull(uint8_t *buf, size_t buflen,
struct ctdb_server_id *sid)
{
if (buflen < sizeof(struct ctdb_server_id)) {
return EMSGSIZE;
}
memcpy(sid, buf, sizeof(struct ctdb_server_id));
return 0;
}
size_t ctdb_g_lock_len(struct ctdb_g_lock *lock)
{
return sizeof(struct ctdb_g_lock);
}
void ctdb_g_lock_push(struct ctdb_g_lock *lock, uint8_t *buf)
{
memcpy(buf, lock, sizeof(struct ctdb_g_lock));
}
int ctdb_g_lock_pull(uint8_t *buf, size_t buflen, struct ctdb_g_lock *lock)
{
if (buflen < sizeof(struct ctdb_g_lock)) {
return EMSGSIZE;
}
memcpy(lock, buf, sizeof(struct ctdb_g_lock));
return 0;
}
size_t ctdb_g_lock_list_len(struct ctdb_g_lock_list *lock_list)
{
return lock_list->num * sizeof(struct ctdb_g_lock);
}
void ctdb_g_lock_list_push(struct ctdb_g_lock_list *lock_list, uint8_t *buf)
{
size_t offset = 0;
int i;
for (i=0; inum; i++) {
ctdb_g_lock_push(&lock_list->lock[i], &buf[offset]);
offset += sizeof(struct ctdb_g_lock);
}
}
int ctdb_g_lock_list_pull(uint8_t *buf, size_t buflen, TALLOC_CTX *mem_ctx,
struct ctdb_g_lock_list **out)
{
struct ctdb_g_lock_list *lock_list;
unsigned count;
size_t offset;
int ret, i;
lock_list = talloc_zero(mem_ctx, struct ctdb_g_lock_list);
if (lock_list == NULL) {
return ENOMEM;
}
count = buflen / sizeof(struct ctdb_g_lock);
lock_list->lock = talloc_array(lock_list, struct ctdb_g_lock, count);
if (lock_list->lock == NULL) {
talloc_free(lock_list);
return ENOMEM;
}
offset = 0;
for (i=0; ilock[i]);
if (ret != 0) {
talloc_free(lock_list);
return ret;
}
offset += sizeof(struct ctdb_g_lock);
}
lock_list->num = count;
*out = lock_list;
return 0;
}