Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 581 insertions, 0 deletions

diff --git a/ctdb/protocol/protocol_call.c b/ctdb/protocol/protocol_call.c
new file mode 100644
index 0000000..393b118
--- /dev/null
+++ b/ctdb/protocol/protocol_call.c
@@ -0,0 +1,581 @@
+/*
+   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 <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "system/network.h"
+
+#include <talloc.h>
+#include <tdb.h>
+
+#include "protocol.h"
+#include "protocol_api.h"
+#include "protocol_private.h"
+
+size_t ctdb_req_call_len(struct ctdb_req_header *h, struct ctdb_req_call *c)
+{
+	return ctdb_req_header_len(h) +
+		ctdb_uint32_len(&c->flags) +
+		ctdb_uint32_len(&c->db_id) +
+		ctdb_uint32_len(&c->callid) +
+		ctdb_uint32_len(&c->hopcount) +
+		ctdb_tdb_datan_len(&c->key) +
+		ctdb_tdb_datan_len(&c->calldata);
+}
+
+int ctdb_req_call_push(struct ctdb_req_header *h, struct ctdb_req_call *c,
+		       uint8_t *buf, size_t *buflen)
+{
+	size_t offset = 0;
+	size_t length, np;
+	uint32_t u32;
+
+	if (c->key.dsize == 0) {
+		return EINVAL;
+	}
+
+	length = ctdb_req_call_len(h, c);
+	if (*buflen < length) {
+		*buflen = length;
+		return EMSGSIZE;
+	}
+
+	h->length = *buflen;
+	ctdb_req_header_push(h, buf+offset, &np);
+	offset += np;
+
+	ctdb_uint32_push(&c->flags, buf+offset, &np);
+	offset += np;
+
+	ctdb_uint32_push(&c->db_id, buf+offset, &np);
+	offset += np;
+
+	ctdb_uint32_push(&c->callid, buf+offset, &np);
+	offset += np;
+
+	ctdb_uint32_push(&c->hopcount, buf+offset, &np);
+	offset += np;
+
+	u32 = ctdb_tdb_data_len(&c->key);
+	ctdb_uint32_push(&u32, buf+offset, &np);
+	offset += np;
+
+	u32 = ctdb_tdb_data_len(&c->calldata);
+	ctdb_uint32_push(&u32, buf+offset, &np);
+	offset += np;
+
+	ctdb_tdb_data_push(&c->key, buf+offset, &np);
+	offset += np;
+
+	ctdb_tdb_data_push(&c->calldata, buf+offset, &np);
+	offset += np;
+
+	return 0;
+}
+
+int ctdb_req_call_pull(uint8_t *buf, size_t buflen,
+		       struct ctdb_req_header *h,
+		       TALLOC_CTX *mem_ctx,
+		       struct ctdb_req_call *c)
+{
+	struct ctdb_req_header header;
+	size_t offset = 0, np;
+	uint32_t u32;
+	int ret;
+
+	ret = ctdb_req_header_pull(buf+offset, buflen-offset, &header, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	if (h != NULL) {
+		*h = header;
+	}
+
+	ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->flags, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->db_id, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->callid, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->hopcount, &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->calldata.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->calldata.dsize) {
+		return EMSGSIZE;
+	}
+
+	ret = ctdb_tdb_data_pull(buf+offset, c->calldata.dsize,
+				 mem_ctx, &c->calldata, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	return 0;
+}
+
+size_t ctdb_reply_call_len(struct ctdb_req_header *h,
+			   struct ctdb_reply_call *c)
+{
+	return ctdb_req_header_len(h) +
+		ctdb_int32_len(&c->status) +
+		ctdb_tdb_datan_len(&c->data);
+}
+
+int ctdb_reply_call_push(struct ctdb_req_header *h, struct ctdb_reply_call *c,
+			 uint8_t *buf, size_t *buflen)
+{
+	size_t offset = 0, np;
+	size_t length;
+
+	length = ctdb_reply_call_len(h, c);
+	if (*buflen < length) {
+		*buflen = length;
+		return EMSGSIZE;
+	}
+
+	h->length = *buflen;
+	ctdb_req_header_push(h, buf+offset, &np);
+	offset += np;
+
+	ctdb_int32_push(&c->status, buf+offset, &np);
+	offset += np;
+
+	ctdb_tdb_datan_push(&c->data, buf+offset, &np);
+	offset += np;
+
+	return 0;
+}
+
+int ctdb_reply_call_pull(uint8_t *buf, size_t buflen,
+			 struct ctdb_req_header *h,
+			 TALLOC_CTX *mem_ctx,
+			 struct ctdb_reply_call *c)
+{
+	struct ctdb_req_header header;
+	size_t offset = 0, np;
+	int ret;
+
+	ret = ctdb_req_header_pull(buf+offset, buflen-offset, &header, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	if (h != NULL) {
+		*h = header;
+	}
+
+	ret = ctdb_int32_pull(buf+offset, buflen-offset, &c->status, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	ret = ctdb_tdb_datan_pull(buf+offset, buflen-offset,
+				  mem_ctx, &c->data, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	return 0;
+}
+
+size_t ctdb_reply_error_len(struct ctdb_req_header *h,
+			    struct ctdb_reply_error *c)
+{
+	return ctdb_req_header_len(h) +
+		ctdb_int32_len(&c->status) +
+		ctdb_tdb_datan_len(&c->msg);
+}
+
+int ctdb_reply_error_push(struct ctdb_req_header *h, struct ctdb_reply_error *c,
+			  uint8_t *buf, size_t *buflen)
+{
+	size_t offset = 0, np;
+	size_t length;
+
+	length = ctdb_reply_error_len(h, c);
+	if (*buflen < length) {
+		*buflen = length;
+		return EMSGSIZE;
+	}
+
+	h->length = *buflen;
+	ctdb_req_header_push(h, buf+offset, &np);
+	offset += np;
+
+	ctdb_int32_push(&c->status, buf+offset, &np);
+	offset += np;
+
+	ctdb_tdb_datan_push(&c->msg, buf+offset, &np);
+	offset += np;
+
+	return 0;
+}
+
+int ctdb_reply_error_pull(uint8_t *buf, size_t buflen,
+			  struct ctdb_req_header *h,
+			  TALLOC_CTX *mem_ctx,
+			  struct ctdb_reply_error *c)
+{
+	struct ctdb_req_header header;
+	size_t offset = 0, np;
+	int ret;
+
+	ret = ctdb_req_header_pull(buf+offset, buflen-offset, &header, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	if (h != NULL) {
+		*h = header;
+	}
+
+	ret = ctdb_int32_pull(buf+offset, buflen-offset, &c->status, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	ret = ctdb_tdb_datan_pull(buf+offset, buflen-offset, mem_ctx, &c->msg,
+				  &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	return 0;
+}
+
+size_t ctdb_req_dmaster_len(struct ctdb_req_header *h,
+			    struct ctdb_req_dmaster *c)
+{
+	return ctdb_req_header_len(h) +
+		ctdb_uint32_len(&c->db_id) +
+		ctdb_padding_len(4) +
+		ctdb_uint64_len(&c->rsn) +
+		ctdb_uint32_len(&c->dmaster) +
+		ctdb_tdb_datan_len(&c->key) +
+		ctdb_tdb_datan_len(&c->data);
+}
+
+int ctdb_req_dmaster_push(struct ctdb_req_header *h, struct ctdb_req_dmaster *c,
+			  uint8_t *buf, size_t *buflen)
+{
+	size_t offset = 0, np;
+	size_t length;
+	uint32_t u32;
+
+	length = ctdb_req_dmaster_len(h, c);
+	if (*buflen < length) {
+		*buflen = length;
+		return EMSGSIZE;
+	}
+
+	h->length = *buflen;
+	ctdb_req_header_push(h, buf+offset, &np);
+	offset += np;
+
+	ctdb_uint32_push(&c->db_id, buf+offset, &np);
+	offset += np;
+
+	ctdb_padding_push(4, buf+offset, &np);
+	offset += np;
+
+	ctdb_uint64_push(&c->rsn, buf+offset, &np);
+	offset += np;
+
+	ctdb_uint32_push(&c->dmaster, buf+offset, &np);
+	offset += np;
+
+	u32 = ctdb_tdb_data_len(&c->key);
+	ctdb_uint32_push(&u32, buf+offset, &np);
+	offset += np;
+
+	u32 = ctdb_tdb_data_len(&c->data);
+	ctdb_uint32_push(&u32, buf+offset, &np);
+	offset += np;
+
+	ctdb_tdb_data_push(&c->key, buf+offset, &np);
+	offset += np;
+
+	ctdb_tdb_data_push(&c->data, buf+offset, &np);
+	offset += np;
+
+	return 0;
+}
+
+int ctdb_req_dmaster_pull(uint8_t *buf, size_t buflen,
+			  struct ctdb_req_header *h,
+			  TALLOC_CTX *mem_ctx,
+			  struct ctdb_req_dmaster *c)
+{
+	struct ctdb_req_header header;
+	size_t offset = 0, np;
+	uint32_t u32;
+	int ret;
+
+	ret = ctdb_req_header_pull(buf+offset, buflen-offset, &header, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	if (h != NULL) {
+		*h = header;
+	}
+
+	ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->db_id, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	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, &c->dmaster, &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;
+}
+
+size_t ctdb_reply_dmaster_len(struct ctdb_req_header *h,
+			      struct ctdb_reply_dmaster *c)
+{
+	return ctdb_req_header_len(h) +
+		ctdb_uint32_len(&c->db_id) +
+		ctdb_padding_len(4) +
+		ctdb_uint64_len(&c->rsn) +
+		ctdb_tdb_datan_len(&c->key) +
+		ctdb_tdb_datan_len(&c->data);
+}
+
+int ctdb_reply_dmaster_push(struct ctdb_req_header *h,
+			    struct ctdb_reply_dmaster *c,
+			    uint8_t *buf, size_t *buflen)
+{
+	size_t offset = 0, np;
+	size_t length;
+	uint32_t u32;
+
+	length = ctdb_reply_dmaster_len(h, c);
+	if (*buflen < length) {
+		*buflen = length;
+		return EMSGSIZE;
+	}
+
+	h->length = *buflen;
+	ctdb_req_header_push(h, buf+offset, &np);
+	offset += np;
+
+	ctdb_uint32_push(&c->db_id, buf+offset, &np);
+	offset += np;
+
+	ctdb_padding_push(4, buf+offset, &np);
+	offset += np;
+
+	ctdb_uint64_push(&c->rsn, buf+offset, &np);
+	offset += np;
+
+	u32 = ctdb_tdb_data_len(&c->key);
+	ctdb_uint32_push(&u32, buf+offset, &np);
+	offset += np;
+
+	u32 = ctdb_tdb_data_len(&c->data);
+	ctdb_uint32_push(&u32, buf+offset, &np);
+	offset += np;
+
+	ctdb_tdb_data_push(&c->key, buf+offset, &np);
+	offset += np;
+
+	ctdb_tdb_data_push(&c->data, buf+offset, &np);
+	offset += np;
+
+	return 0;
+}
+
+int ctdb_reply_dmaster_pull(uint8_t *buf, size_t buflen,
+			    struct ctdb_req_header *h,
+			    TALLOC_CTX *mem_ctx,
+			    struct ctdb_reply_dmaster *c)
+{
+	struct ctdb_req_header header;
+	size_t offset = 0, np;
+	uint32_t u32;
+	int ret;
+
+	ret = ctdb_req_header_pull(buf+offset, buflen-offset, &header, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	offset += np;
+
+	if (h != NULL) {
+		*h = header;
+	}
+
+	ret = ctdb_uint32_pull(buf+offset, buflen-offset, &c->db_id, &np);
+	if (ret != 0) {
+		return ret;
+	}
+	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;
+}