1 files changed, 37 insertions, 0 deletions
diff --git a/src/include/libpq/scram.h b/src/include/libpq/scram.h
new file mode 100644
index 0000000..2c87915
--- /dev/null
+++ b/src/include/libpq/scram.h
@@ -0,0 +1,37 @@
+/*-------------------------------------------------------------------------
+ *
+ * scram.h
+ *	  Interface to libpq/scram.c
+ *
+ * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/libpq/scram.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PG_SCRAM_H
+#define PG_SCRAM_H
+
+#include "lib/stringinfo.h"
+#include "libpq/libpq-be.h"
+
+/* Status codes for message exchange */
+#define SASL_EXCHANGE_CONTINUE		0
+#define SASL_EXCHANGE_SUCCESS		1
+#define SASL_EXCHANGE_FAILURE		2
+
+/* Routines dedicated to authentication */
+extern void pg_be_scram_get_mechanisms(Port *port, StringInfo buf);
+extern void *pg_be_scram_init(Port *port, const char *selected_mech, const char *shadow_pass);
+extern int	pg_be_scram_exchange(void *opaq, const char *input, int inputlen,
+								 char **output, int *outputlen, char **logdetail);
+
+/* Routines to handle and check SCRAM-SHA-256 secret */
+extern char *pg_be_scram_build_secret(const char *password);
+extern bool parse_scram_secret(const char *secret, int *iterations, char **salt,
+							   uint8 *stored_key, uint8 *server_key);
+extern bool scram_verify_plain_password(const char *username,
+										const char *password, const char *secret);
+
+#endif							/* PG_SCRAM_H */