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	Use SELinux "db_table: { truncate }" to check if permission is granted to
TRUNCATE. Update example SELinux policy to grant needed permission for
TRUNCATE. Add new regression test to demonstrate a positive and negative
cases. Test will only be run if the loaded SELinux policy has the
"db_table: { truncate }" permission. Makes use of recent commit which added
object TRUNCATE hook. Patch by Yuli Khodorkovskiy with minor
editorialization by me. Not back-patched because the object TRUNCATE hook
was not.
Author: Yuli Khodorkovskiy
Reviewed-by: Joe Conway
Discussion: https://postgr.es/m/CAFL5wJcomybj1Xdw7qWmPJRpGuFukKgNrDb6uVBaCMgYS9dkaA%40mail.gmail.com
		
	
		
			
				
	
	
		
			25 lines
		
	
	
		
			862 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
			
		
		
	
	
			25 lines
		
	
	
		
			862 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
| --
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| -- Regression Test for TRUNCATE
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| --
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| 
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| --
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| -- Setup
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| --
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| CREATE TABLE julio_claudians (name text, birth_date date);
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| SECURITY LABEL ON TABLE julio_claudians IS 'system_u:object_r:sepgsql_regtest_foo_table_t:s0';
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| INSERT INTO julio_claudians VALUES ('Augustus', 'September 23, 63 BC'), ('Tiberius', 'November 16, 42 BC'), ('Caligula', 'August 31, 0012'), ('Claudius', 'August 1, 0010'), ('Nero', 'December 15, 0037');
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| 
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| CREATE TABLE flavians (name text, birth_date date);
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| SECURITY LABEL ON TABLE flavians IS 'system_u:object_r:sepgsql_table_t:s0';
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| 
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| INSERT INTO flavians VALUES ('Vespasian', 'November 17, 0009'), ('Titus', 'December 30, 0039'), ('Domitian', 'October 24, 0051');
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| 
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| SELECT * from julio_claudians;
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| SELECT * from flavians;
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| 
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| TRUNCATE TABLE julio_claudians;			-- ok
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| TRUNCATE TABLE flavians;			-- failed
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| 
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| SELECT * from julio_claudians;
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| SELECT * from flavians;
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