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https://github.com/samba-team/samba.git
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4c4094cd94
Signed-off-by: Amitay Isaacs <amitay@gmail.com> Reviewed-by: Martin Schwenke <martin@meltin.net>
582 lines
11 KiB
C
582 lines
11 KiB
C
/*
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CTDB protocol marshalling
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Copyright (C) Amitay Isaacs 2015
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "replace.h"
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#include "system/network.h"
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#include <talloc.h>
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#include <tdb.h>
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#include "protocol.h"
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#include "protocol_api.h"
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#include "protocol_private.h"
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size_t ctdb_req_call_len(struct ctdb_req_header *h, struct ctdb_req_call *c)
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{
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return ctdb_req_header_len(h) +
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ctdb_uint32_len(&c->flags) +
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ctdb_uint32_len(&c->db_id) +
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ctdb_uint32_len(&c->callid) +
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ctdb_uint32_len(&c->hopcount) +
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ctdb_tdb_datan_len(&c->key) +
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ctdb_tdb_datan_len(&c->calldata);
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}
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int ctdb_req_call_push(struct ctdb_req_header *h, struct ctdb_req_call *c,
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uint8_t *buf, size_t *buflen)
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{
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size_t offset = 0;
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size_t length, np;
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uint32_t u32;
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if (c->key.dsize == 0) {
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return EINVAL;
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}
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length = ctdb_req_call_len(h, c);
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if (*buflen < length) {
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*buflen = length;
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return EMSGSIZE;
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}
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h->length = *buflen;
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ctdb_req_header_push(h, buf+offset, &np);
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offset += np;
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ctdb_uint32_push(&c->flags, buf+offset, &np);
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offset += np;
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ctdb_uint32_push(&c->db_id, buf+offset, &np);
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offset += np;
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ctdb_uint32_push(&c->callid, buf+offset, &np);
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offset += np;
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ctdb_uint32_push(&c->hopcount, buf+offset, &np);
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offset += np;
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u32 = ctdb_tdb_data_len(&c->key);
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ctdb_uint32_push(&u32, buf+offset, &np);
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offset += np;
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u32 = ctdb_tdb_data_len(&c->calldata);
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ctdb_uint32_push(&u32, buf+offset, &np);
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offset += np;
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ctdb_tdb_data_push(&c->key, buf+offset, &np);
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offset += np;
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ctdb_tdb_data_push(&c->calldata, buf+offset, &np);
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offset += np;
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return 0;
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}
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int ctdb_req_call_pull(uint8_t *buf, size_t buflen,
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struct ctdb_req_header *h,
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TALLOC_CTX *mem_ctx,
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struct ctdb_req_call *c)
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{
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struct ctdb_req_header header;
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size_t offset = 0, np;
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uint32_t u32;
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int ret;
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ret = ctdb_req_header_pull(buf+offset, buflen-offset, &header, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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if (h != NULL) {
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*h = header;
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}
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ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->flags, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->db_id, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->callid, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->hopcount, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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ret = ctdb_uint32_pull(buf+offset, buflen-offset, &u32, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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c->key.dsize = u32;
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ret = ctdb_uint32_pull(buf+offset, buflen-offset, &u32, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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c->calldata.dsize = u32;
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if (buflen-offset < c->key.dsize) {
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return EMSGSIZE;
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}
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ret = ctdb_tdb_data_pull(buf+offset, c->key.dsize, mem_ctx, &c->key,
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&np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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if (buflen-offset < c->calldata.dsize) {
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return EMSGSIZE;
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}
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ret = ctdb_tdb_data_pull(buf+offset, c->calldata.dsize,
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mem_ctx, &c->calldata, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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return 0;
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}
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size_t ctdb_reply_call_len(struct ctdb_req_header *h,
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struct ctdb_reply_call *c)
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{
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return ctdb_req_header_len(h) +
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ctdb_int32_len(&c->status) +
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ctdb_tdb_datan_len(&c->data);
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}
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int ctdb_reply_call_push(struct ctdb_req_header *h, struct ctdb_reply_call *c,
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uint8_t *buf, size_t *buflen)
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{
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size_t offset = 0, np;
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size_t length;
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length = ctdb_reply_call_len(h, c);
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if (*buflen < length) {
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*buflen = length;
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return EMSGSIZE;
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}
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h->length = *buflen;
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ctdb_req_header_push(h, buf+offset, &np);
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offset += np;
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ctdb_int32_push(&c->status, buf+offset, &np);
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offset += np;
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ctdb_tdb_datan_push(&c->data, buf+offset, &np);
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offset += np;
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return 0;
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}
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int ctdb_reply_call_pull(uint8_t *buf, size_t buflen,
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struct ctdb_req_header *h,
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TALLOC_CTX *mem_ctx,
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struct ctdb_reply_call *c)
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{
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struct ctdb_req_header header;
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size_t offset = 0, np;
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int ret;
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ret = ctdb_req_header_pull(buf+offset, buflen-offset, &header, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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if (h != NULL) {
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*h = header;
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}
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ret = ctdb_int32_pull(buf+offset, buflen-offset, &c->status, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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ret = ctdb_tdb_datan_pull(buf+offset, buflen-offset,
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mem_ctx, &c->data, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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return 0;
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}
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size_t ctdb_reply_error_len(struct ctdb_req_header *h,
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struct ctdb_reply_error *c)
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{
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return ctdb_req_header_len(h) +
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ctdb_int32_len(&c->status) +
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ctdb_tdb_datan_len(&c->msg);
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}
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int ctdb_reply_error_push(struct ctdb_req_header *h, struct ctdb_reply_error *c,
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uint8_t *buf, size_t *buflen)
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{
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size_t offset = 0, np;
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size_t length;
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length = ctdb_reply_error_len(h, c);
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if (*buflen < length) {
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*buflen = length;
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return EMSGSIZE;
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}
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h->length = *buflen;
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ctdb_req_header_push(h, buf+offset, &np);
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offset += np;
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ctdb_int32_push(&c->status, buf+offset, &np);
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offset += np;
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ctdb_tdb_datan_push(&c->msg, buf+offset, &np);
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offset += np;
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return 0;
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}
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int ctdb_reply_error_pull(uint8_t *buf, size_t buflen,
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struct ctdb_req_header *h,
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TALLOC_CTX *mem_ctx,
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struct ctdb_reply_error *c)
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{
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struct ctdb_req_header header;
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size_t offset = 0, np;
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int ret;
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ret = ctdb_req_header_pull(buf+offset, buflen-offset, &header, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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if (h != NULL) {
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*h = header;
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}
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ret = ctdb_int32_pull(buf+offset, buflen-offset, &c->status, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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ret = ctdb_tdb_datan_pull(buf+offset, buflen-offset, mem_ctx, &c->msg,
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&np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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return 0;
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}
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size_t ctdb_req_dmaster_len(struct ctdb_req_header *h,
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struct ctdb_req_dmaster *c)
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{
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return ctdb_req_header_len(h) +
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ctdb_uint32_len(&c->db_id) +
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ctdb_padding_len(4) +
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ctdb_uint64_len(&c->rsn) +
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ctdb_uint32_len(&c->dmaster) +
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ctdb_tdb_datan_len(&c->key) +
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ctdb_tdb_datan_len(&c->data);
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}
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int ctdb_req_dmaster_push(struct ctdb_req_header *h, struct ctdb_req_dmaster *c,
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uint8_t *buf, size_t *buflen)
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{
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size_t offset = 0, np;
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size_t length;
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uint32_t u32;
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length = ctdb_req_dmaster_len(h, c);
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if (*buflen < length) {
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*buflen = length;
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return EMSGSIZE;
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}
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h->length = *buflen;
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ctdb_req_header_push(h, buf+offset, &np);
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offset += np;
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ctdb_uint32_push(&c->db_id, buf+offset, &np);
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offset += np;
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ctdb_padding_push(4, buf+offset, &np);
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offset += np;
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ctdb_uint64_push(&c->rsn, buf+offset, &np);
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offset += np;
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ctdb_uint32_push(&c->dmaster, buf+offset, &np);
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offset += np;
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u32 = ctdb_tdb_data_len(&c->key);
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ctdb_uint32_push(&u32, buf+offset, &np);
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offset += np;
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u32 = ctdb_tdb_data_len(&c->data);
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ctdb_uint32_push(&u32, buf+offset, &np);
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offset += np;
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ctdb_tdb_data_push(&c->key, buf+offset, &np);
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offset += np;
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ctdb_tdb_data_push(&c->data, buf+offset, &np);
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offset += np;
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return 0;
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}
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int ctdb_req_dmaster_pull(uint8_t *buf, size_t buflen,
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struct ctdb_req_header *h,
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TALLOC_CTX *mem_ctx,
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struct ctdb_req_dmaster *c)
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{
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struct ctdb_req_header header;
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size_t offset = 0, np;
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uint32_t u32;
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int ret;
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ret = ctdb_req_header_pull(buf+offset, buflen-offset, &header, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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if (h != NULL) {
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*h = header;
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}
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ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->db_id, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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ret = ctdb_padding_pull(buf+offset, buflen-offset, 4, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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ret = ctdb_uint64_pull(buf+offset, buflen-offset, &c->rsn, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->dmaster, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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ret = ctdb_uint32_pull(buf+offset, buflen-offset, &u32, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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c->key.dsize = u32;
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ret = ctdb_uint32_pull(buf+offset, buflen-offset, &u32, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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c->data.dsize = u32;
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if (buflen-offset < c->key.dsize) {
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return EMSGSIZE;
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}
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ret = ctdb_tdb_data_pull(buf+offset, c->key.dsize, mem_ctx, &c->key,
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&np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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if (buflen-offset < c->data.dsize) {
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return EMSGSIZE;
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}
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ret = ctdb_tdb_data_pull(buf+offset, c->data.dsize, mem_ctx, &c->data,
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&np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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return 0;
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}
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size_t ctdb_reply_dmaster_len(struct ctdb_req_header *h,
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struct ctdb_reply_dmaster *c)
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{
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return ctdb_req_header_len(h) +
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ctdb_uint32_len(&c->db_id) +
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ctdb_padding_len(4) +
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ctdb_uint64_len(&c->rsn) +
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ctdb_tdb_datan_len(&c->key) +
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ctdb_tdb_datan_len(&c->data);
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}
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int ctdb_reply_dmaster_push(struct ctdb_req_header *h,
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struct ctdb_reply_dmaster *c,
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uint8_t *buf, size_t *buflen)
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{
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size_t offset = 0, np;
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size_t length;
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uint32_t u32;
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length = ctdb_reply_dmaster_len(h, c);
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if (*buflen < length) {
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*buflen = length;
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return EMSGSIZE;
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}
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h->length = *buflen;
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ctdb_req_header_push(h, buf+offset, &np);
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offset += np;
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ctdb_uint32_push(&c->db_id, buf+offset, &np);
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offset += np;
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ctdb_padding_push(4, buf+offset, &np);
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offset += np;
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ctdb_uint64_push(&c->rsn, buf+offset, &np);
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offset += np;
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u32 = ctdb_tdb_data_len(&c->key);
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ctdb_uint32_push(&u32, buf+offset, &np);
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offset += np;
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u32 = ctdb_tdb_data_len(&c->data);
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ctdb_uint32_push(&u32, buf+offset, &np);
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offset += np;
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ctdb_tdb_data_push(&c->key, buf+offset, &np);
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offset += np;
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ctdb_tdb_data_push(&c->data, buf+offset, &np);
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offset += np;
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return 0;
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}
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int ctdb_reply_dmaster_pull(uint8_t *buf, size_t buflen,
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struct ctdb_req_header *h,
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TALLOC_CTX *mem_ctx,
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struct ctdb_reply_dmaster *c)
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{
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struct ctdb_req_header header;
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size_t offset = 0, np;
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uint32_t u32;
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int ret;
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ret = ctdb_req_header_pull(buf+offset, buflen-offset, &header, &np);
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if (ret != 0) {
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return ret;
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}
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offset += np;
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if (h != NULL) {
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*h = header;
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}
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ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->db_id, &np);
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if (ret != 0) {
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return ret;
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}
|
|
offset += np;
|
|
|
|
ret = ctdb_padding_pull(buf+offset, buflen-offset, 4, &np);
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
offset += np;
|
|
|
|
ret = ctdb_uint64_pull(buf+offset, buflen-offset, &c->rsn, &np);
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
offset += np;
|
|
|
|
ret = ctdb_uint32_pull(buf+offset, buflen-offset, &u32, &np);
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
offset += np;
|
|
c->key.dsize = u32;
|
|
|
|
ret = ctdb_uint32_pull(buf+offset, buflen-offset, &u32, &np);
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
offset += np;
|
|
c->data.dsize = u32;
|
|
|
|
if (buflen-offset < c->key.dsize) {
|
|
return EMSGSIZE;
|
|
}
|
|
|
|
ret = ctdb_tdb_data_pull(buf+offset, c->key.dsize, mem_ctx, &c->key,
|
|
&np);
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
offset += np;
|
|
|
|
if (buflen-offset < c->data.dsize) {
|
|
return EMSGSIZE;
|
|
}
|
|
|
|
ret = ctdb_tdb_data_pull(buf+offset, c->data.dsize, mem_ctx, &c->data,
|
|
&np);
|
|
if (ret != 0) {
|
|
return ret;
|
|
}
|
|
offset += np;
|
|
|
|
return 0;
|
|
}
|