Initial commitv0.01-alpha1

1 files changed, 84 insertions, 0 deletions

diff --git a/include/exthdr.h b/include/exthdr.h
new file mode 100644
index 00000000..8ef0b395
--- /dev/null
+++ b/include/exthdr.h
@@ -0,0 +1,84 @@
+#ifndef _EXTHDR_H
+#define _EXTHDR_H
+
+/**
+ * struct exthdr_desc - extension header description
+ *
+ * @name:	extension header name
+ * @type:	extension header protocol value
+ * @templates:	header templates
+ */
+struct exthdr_desc {
+	const char			*name;
+	uint8_t				type;
+	struct payload_template		templates[10];
+};
+
+extern struct expr *exthdr_expr_alloc(const struct location *loc,
+				      const struct exthdr_desc *desc,
+				      uint8_t type);
+
+extern void exthdr_init_raw(struct expr *expr, uint8_t type,
+			    unsigned int offset, unsigned int len);
+
+
+enum hbh_hdr_fields {
+	HBHHDR_INVALID,
+	HBHHDR_NEXTHDR,
+	HBHHDR_HDRLENGTH,
+};
+
+enum rt_hdr_fields {
+	RTHDR_INVALID,
+	RTHDR_NEXTHDR,
+	RTHDR_HDRLENGTH,
+	RTHDR_TYPE,
+	RTHDR_SEG_LEFT,
+};
+
+enum rt0_hdr_fields {
+	RT0HDR_INVALID,
+	RT0HDR_RESERVED,
+	RT0HDR_ADDR_1,
+};
+
+enum rt2_hdr_fields {
+	RT2HDR_INVALID,
+	RT2HDR_RESERVED,
+	RT2HDR_ADDR,
+};
+
+enum frag_hdr_fields {
+	FRAGHDR_INVALID,
+	FRAGHDR_NEXTHDR,
+	FRAGHDR_RESERVED,
+	FRAGHDR_FRAG_OFF,
+	FRAGHDR_RESERVED2,
+	FRAGHDR_MFRAGS,
+	FRAGHDR_ID,
+};
+
+enum dst_hdr_fields {
+	DSTHDR_INVALID,
+	DSTHDR_NEXTHDR,
+	DSTHDR_HDRLENGTH,
+};
+
+enum mh_hdr_fields {
+	MHHDR_INVALID,
+	MHHDR_NEXTHDR,
+	MHHDR_HDRLENGTH,
+	MHHDR_TYPE,
+	MHHDR_RESERVED,
+	MHHDR_CHECKSUM,
+};
+
+extern const struct exthdr_desc exthdr_hbh;
+extern const struct exthdr_desc exthdr_rt;
+extern const struct exthdr_desc exthdr_rt0;
+extern const struct exthdr_desc exthdr_rt2;
+extern const struct exthdr_desc exthdr_frag;
+extern const struct exthdr_desc exthdr_dst;
+extern const struct exthdr_desc exthdr_mh;
+
+#endif /* _EXTHDR_H */