1 files changed, 88 insertions, 0 deletions
diff --git a/accel-pppd/ctrl/l2tp/l2tp.h b/accel-pppd/ctrl/l2tp/l2tp.h
new file mode 100644
index 0000000..ac9b8e0
--- /dev/null
+++ b/accel-pppd/ctrl/l2tp/l2tp.h
@@ -0,0 +1,88 @@
+#ifndef __L2TP_H
+#define __L2TP_H
+
+#include <netinet/in.h>
+
+#include "list.h"
+#include "l2tp_prot.h"
+
+#define ATTR_TYPE_NONE    0
+#define ATTR_TYPE_INT16   1
+#define ATTR_TYPE_INT32   2
+#define ATTR_TYPE_INT64   3
+#define ATTR_TYPE_OCTETS  4
+#define ATTR_TYPE_STRING  5
+
+#define L2TP_MAX_PACKET_SIZE 65536
+#define L2TP_MAX_TID 65534
+
+#define L2TP_V2_PROTOCOL_VERSION ( 1 << 8 | 0 )
+
+typedef union
+{
+	uint32_t uint32;
+	int32_t  int32;
+	uint16_t uint16;
+	int16_t  int16;
+	uint64_t uint64;
+	uint8_t *octets;
+	char    *string;
+} l2tp_value_t;
+
+struct l2tp_dict_attr_t
+{
+	struct list_head entry;
+	const char *name;
+	int id;
+	int type;
+	int M;
+	int H;
+	struct list_head values;
+};
+
+struct l2tp_dict_value_t
+{
+	struct list_head entry;
+	const char *name;
+	l2tp_value_t val;
+};
+
+struct l2tp_attr_t
+{
+	struct list_head entry;
+	struct l2tp_dict_attr_t *attr;
+	int M:1;
+	int H:1;
+	int length;
+	l2tp_value_t val;
+};
+
+struct l2tp_packet_t
+{
+	struct list_head entry;
+	struct sockaddr_in addr;
+	struct l2tp_hdr_t hdr;
+	struct list_head attrs;
+};
+
+extern int conf_verbose;
+
+struct l2tp_dict_attr_t *l2tp_dict_find_attr_by_name(const char *name);
+struct l2tp_dict_attr_t *l2tp_dict_find_attr_by_id(int id);
+struct l2tp_dict_value_t *l2tp_dict_find_value(struct l2tp_dict_attr_t *attr, l2tp_value_t val);
+
+int l2tp_recv(int fd, struct l2tp_packet_t **, struct in_pktinfo *);
+void l2tp_packet_free(struct l2tp_packet_t *);
+void l2tp_packet_print(struct l2tp_packet_t *, void (*print)(const char *fmt, ...));
+struct l2tp_packet_t *l2tp_packet_alloc(int ver, int msg_type, struct sockaddr_in *addr);
+int l2tp_packet_send(int sock, struct l2tp_packet_t *);
+int l2tp_packet_add_int16(struct l2tp_packet_t *pack, int id, int16_t val, int M);
+int l2tp_packet_add_int32(struct l2tp_packet_t *pack, int id, int32_t val, int M);
+int l2tp_packet_add_string(struct l2tp_packet_t *pack, int id, const char *val, int M);
+int l2tp_packet_add_octets(struct l2tp_packet_t *pack, int id, const uint8_t *val, int size, int M);
+
+void l2tp_nl_create_tunnel(int fd, int tid, int peer_tid);
+void l2tp_nl_create_session(int tid, int sid, int peer_sid);
+void l2tp_nl_delete_tunnel(int tid);
+
+#endif