1 files changed, 35 insertions, 0 deletions
diff --git a/pigeonhole/src/lib-sieve/plugins/variables/ext-variables-limits.h b/pigeonhole/src/lib-sieve/plugins/variables/ext-variables-limits.h
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index 0000000..61260c8
--- /dev/null
+++ b/pigeonhole/src/lib-sieve/plugins/variables/ext-variables-limits.h
@@ -0,0 +1,35 @@
+#ifndef EXT_VARIABLES_LIMITS_H
+#define EXT_VARIABLES_LIMITS_H
+
+#include "sieve-limits.h"
+
+/* From RFC 5229:
+ *
+ * 6.  Implementation Limits
+ *
+ *  An implementation of this document MUST support at least 128 distinct
+ *  variables.  The supported length of variable names MUST be at least
+ *  32 characters.  Each variable MUST be able to hold at least 4000
+ *  characters.  Attempts to set the variable to a value larger than what
+ *  the implementation supports SHOULD be reported as an error at
+ *  compile-time if possible.  If the attempt is discovered during run-
+ *  time, the value SHOULD be truncated, and it MUST NOT be treated as an
+ *  error.
+
+ *  Match variables ${1} through ${9} MUST be supported.  References to
+ *  higher indices than those the implementation supports MUST be treated
+ *  as a syntax error, which SHOULD be discovered at compile-time.
+ */
+
+#define EXT_VARIABLES_DEFAULT_MAX_SCOPE_SIZE     255
+#define EXT_VARIABLES_DEFAULT_MAX_VARIABLE_SIZE  (4 * 1024)
+
+#define EXT_VARIABLES_REQUIRED_MAX_SCOPE_SIZE    128
+#define EXT_VARIABLES_REQUIRED_MAX_VARIABLE_SIZE 4000
+
+#define EXT_VARIABLES_MAX_VARIABLE_NAME_LEN      64
+#define EXT_VARIABLES_MAX_NAMESPACE_ELEMENTS     10
+
+#define EXT_VARIABLES_MAX_MATCH_INDEX            SIEVE_MAX_MATCH_VALUES
+
+#endif