summaryrefslogtreecommitdiffstats
path: root/include/meta.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/meta.h')
-rw-r--r--include/meta.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/meta.h b/include/meta.h
new file mode 100644
index 00000000..75b1f1eb
--- /dev/null
+++ b/include/meta.h
@@ -0,0 +1,29 @@
+#ifndef _META_H
+#define _META_H
+
+/**
+ * struct meta_template - template for meta expressions and statements
+ *
+ * @token: parser token for the expression
+ * @dtype: data type of the expression
+ * @len: length of the expression
+ * @byteorder: byteorder
+ */
+struct meta_template {
+ const char *token;
+ const struct datatype *dtype;
+ enum byteorder byteorder;
+ unsigned int len;
+};
+
+#define META_TEMPLATE(__token, __dtype, __len, __byteorder) { \
+ .token = (__token), \
+ .dtype = (__dtype), \
+ .len = (__len), \
+ .byteorder = (__byteorder), \
+}
+
+extern struct expr *meta_expr_alloc(const struct location *loc,
+ enum nft_meta_keys key);
+
+#endif /* _META_H */