db/pgbackrest
1
0
Fork 0
mirror of https://github.com/pgbackrest/pgbackrest.git synced 2025-07-05 00:28:52 +02:00
Code Issues Releases Activity

Add validation for WAL segment size in pg_control.

Browse Source 
This serves as an additional sanity check to be sure the pg_control format is as expected. The field is useful for being near the end and containing a limited number of discrete values.
This commit is contained in:
David Steele
2024-03-10 16:17:50 +13:00
parent 63541b2273
commit 960b43589d
4 changed files with 54 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/postgres/interface/static.vendor.h
View File

@ -244,4 +244,22 @@ Types from src/include/access/transam.h
*/
#define FirstNormalObjectId 16384
/***********************************************************************************************************************************
Types from src/include/access/xlog_internal.h
***********************************************************************************************************************************/
// WalSegMinSize/WalSegMinSize macros
// ---------------------------------------------------------------------------------------------------------------------------------
/* wal_segment_size can range from 1MB to 1GB */
#define WalSegMinSize 1024 * 1024
#define WalSegMaxSize 1024 * 1024 * 1024
// IsPowerOf2/IsValidWalSegSize macros
// ---------------------------------------------------------------------------------------------------------------------------------
/* check that the given size is a valid wal_segment_size */
#define IsPowerOf2(x) (x > 0 && ((x) & ((x)-1)) == 0)
#define IsValidWalSegSize(size) \
(IsPowerOf2(size) && \
((size) >= WalSegMinSize && (size) <= WalSegMaxSize))
#endif