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db_include/rewrite/rowsecurity.h

@@ -0,0 +1,49 @@
+/* -------------------------------------------------------------------------
+ *
+ * rowsecurity.h
+ *
+ *	  prototypes for rewrite/rowsecurity.c and the structures for managing
+ *	  the row security policies for relations in relcache.
+ *
+ * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * -------------------------------------------------------------------------
+ */
+#ifndef ROWSECURITY_H
+#define ROWSECURITY_H
+
+#include "nodes/parsenodes.h"
+#include "utils/array.h"
+#include "utils/relcache.h"
+
+typedef struct RowSecurityPolicy
+{
+	char	   *policy_name;	/* Name of the policy */
+	char		polcmd;			/* Type of command policy is for */
+	ArrayType  *roles;			/* Array of roles policy is for */
+	bool		permissive;		/* restrictive or permissive policy */
+	Expr	   *qual;			/* Expression to filter rows */
+	Expr	   *with_check_qual;	/* Expression to limit rows allowed */
+	bool		hassublinks;	/* If either expression has sublinks */
+} RowSecurityPolicy;
+
+typedef struct RowSecurityDesc
+{
+	MemoryContext rscxt;		/* row security memory context */
+	List	   *policies;		/* list of row security policies */
+} RowSecurityDesc;
+
+typedef List *(*row_security_policy_hook_type) (CmdType cmdtype,
+												Relation relation);
+
+extern PGDLLIMPORT row_security_policy_hook_type row_security_policy_hook_permissive;
+
+extern PGDLLIMPORT row_security_policy_hook_type row_security_policy_hook_restrictive;
+
+extern void get_row_security_policies(Query *root,
+									  RangeTblEntry *rte, int rt_index,
+									  List **securityQuals, List **withCheckOptions,
+									  bool *hasRowSecurity, bool *hasSubLinks);
+
+#endif							/* ROWSECURITY_H */