1 /* ------------------------------------------------------------------------- 2 * 3 * rowsecurity.h 4 * 5 * prototypes for rewrite/rowsecurity.c and the structures for managing 6 * the row security policies for relations in relcache. 7 * 8 * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group 9 * Portions Copyright (c) 1994, Regents of the University of California 10 * 11 * ------------------------------------------------------------------------- 12 */ 13 #ifndef ROWSECURITY_H 14 #define ROWSECURITY_H 15 16 #include "nodes/parsenodes.h" 17 #include "utils/array.h" 18 #include "utils/relcache.h" 19 20 typedef struct RowSecurityPolicy 21 { 22 char *policy_name; /* Name of the policy */ 23 char polcmd; /* Type of command policy is for */ 24 ArrayType *roles; /* Array of roles policy is for */ 25 bool permissive; /* restrictive or permissive policy */ 26 Expr *qual; /* Expression to filter rows */ 27 Expr *with_check_qual; /* Expression to limit rows allowed */ 28 bool hassublinks; /* If either expression has sublinks */ 29 } RowSecurityPolicy; 30 31 typedef struct RowSecurityDesc 32 { 33 MemoryContext rscxt; /* row security memory context */ 34 List *policies; /* list of row security policies */ 35 } RowSecurityDesc; 36 37 typedef List *(*row_security_policy_hook_type) (CmdType cmdtype, 38 Relation relation); 39 40 extern PGDLLIMPORT row_security_policy_hook_type row_security_policy_hook_permissive; 41 42 extern PGDLLIMPORT row_security_policy_hook_type row_security_policy_hook_restrictive; 43 44 extern void get_row_security_policies(Query *root, 45 RangeTblEntry *rte, int rt_index, 46 List **securityQuals, List **withCheckOptions, 47 bool *hasRowSecurity, bool *hasSubLinks); 48 49 #endif /* ROWSECURITY_H */ 50