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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
commit | a175314c3e5827eb193872241446f2f8f5c9d33c (patch) | |
tree | cd3d60ca99ae00829c52a6ca79150a5b6e62528b /sql/rpl_constants.h | |
parent | Initial commit. (diff) | |
download | mariadb-10.5-upstream/1%10.5.12.tar.xz mariadb-10.5-upstream/1%10.5.12.zip |
Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | sql/rpl_constants.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/sql/rpl_constants.h b/sql/rpl_constants.h new file mode 100644 index 00000000..f319d083 --- /dev/null +++ b/sql/rpl_constants.h @@ -0,0 +1,112 @@ +/* Copyright (c) 2007 MySQL AB, 2008 Sun Microsystems, Inc. + Use is subject to license terms. + + 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; version 2 of the License. + + 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, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */ + +#ifndef RPL_CONSTANTS_H +#define RPL_CONSTANTS_H + +#include <my_sys.h> +#include <my_crypt.h> + +/** + Enumeration of the incidents that can occur for the server. + */ +enum Incident { + /** No incident */ + INCIDENT_NONE = 0, + + /** There are possibly lost events in the replication stream */ + INCIDENT_LOST_EVENTS = 1, + + /** Shall be last event of the enumeration */ + INCIDENT_COUNT +}; + + +/** + Enumeration of the reserved formats of Binlog extra row information +*/ +enum ExtraRowInfoFormat { + + /** Reserved formats 0 -> 63 inclusive */ + ERIF_LASTRESERVED = 63, + + /** + Available / uncontrolled formats + 64 -> 254 inclusive + */ + ERIF_OPEN1 = 64, + ERIF_OPEN2 = 65, + + ERIF_LASTOPEN = 254, + + /** + Multi-payload format 255 + + Length is total length, payload is sequence of + sub-payloads with their own headers containing + length + format. + */ + ERIF_MULTI = 255 +}; + +/* + 1 byte length, 1 byte format + Length is total length in bytes, including 2 byte header + Length values 0 and 1 are currently invalid and reserved. +*/ +#define EXTRA_ROW_INFO_LEN_OFFSET 0 +#define EXTRA_ROW_INFO_FORMAT_OFFSET 1 +#define EXTRA_ROW_INFO_HDR_BYTES 2 +#define EXTRA_ROW_INFO_MAX_PAYLOAD (255 - EXTRA_ROW_INFO_HDR_BYTES) + +enum enum_binlog_checksum_alg { + BINLOG_CHECKSUM_ALG_OFF= 0, // Events are without checksum though its generator + // is checksum-capable New Master (NM). + BINLOG_CHECKSUM_ALG_CRC32= 1, // CRC32 of zlib algorithm. + BINLOG_CHECKSUM_ALG_ENUM_END, // the cut line: valid alg range is [1, 0x7f]. + BINLOG_CHECKSUM_ALG_UNDEF= 255 // special value to tag undetermined yet checksum + // or events from checksum-unaware servers +}; + +#define BINLOG_CRYPTO_SCHEME_LENGTH 1 +#define BINLOG_KEY_VERSION_LENGTH 4 +#define BINLOG_IV_LENGTH MY_AES_BLOCK_SIZE +#define BINLOG_IV_OFFS_LENGTH 4 +#define BINLOG_NONCE_LENGTH (BINLOG_IV_LENGTH - BINLOG_IV_OFFS_LENGTH) + +struct Binlog_crypt_data { + uint scheme; + uint key_version, key_length, ctx_size; + uchar key[MY_AES_MAX_KEY_LENGTH]; + uchar nonce[BINLOG_NONCE_LENGTH]; + + int init(uint sch, uint kv) + { + scheme= sch; + ctx_size= encryption_ctx_size(ENCRYPTION_KEY_SYSTEM_DATA, kv); + key_version= kv; + key_length= sizeof(key); + return encryption_key_get(ENCRYPTION_KEY_SYSTEM_DATA, kv, key, &key_length); + } + + void set_iv(uchar* iv, uint32 offs) const + { + memcpy(iv, nonce, BINLOG_NONCE_LENGTH); + int4store(iv + BINLOG_NONCE_LENGTH, offs); + } +}; + +#endif /* RPL_CONSTANTS_H */ |