ctrl: implemented PPPoE server

1 files changed, 59 insertions, 0 deletions

diff --git a/accel-pptpd/ctrl/pppoe.h b/accel-pptpd/ctrl/pppoe.h
new file mode 100644
index 0000000..0506108
--- /dev/null
+++ b/accel-pptpd/ctrl/pppoe.h
@@ -0,0 +1,59 @@
+#ifndef __PPPOE_H
+#define __PPPOE_H
+
+#include <linux/if.h>
+#include <linux/if_pppox.h>
+
+/* PPPoE codes */
+#define CODE_PADI           0x09
+#define CODE_PADO           0x07
+#define CODE_PADR           0x19
+#define CODE_PADS           0x65
+#define CODE_PADT           0xA7
+#define CODE_SESS           0x00
+
+/* PPPoE Tags */
+#define TAG_END_OF_LIST        0x0000
+#define TAG_SERVICE_NAME       0x0101
+#define TAG_AC_NAME            0x0102
+#define TAG_HOST_UNIQ          0x0103
+#define TAG_AC_COOKIE          0x0104
+#define TAG_VENDOR_SPECIFIC    0x0105
+#define TAG_RELAY_SESSION_ID   0x0110
+#define TAG_SERVICE_NAME_ERROR 0x0201
+#define TAG_AC_SYSTEM_ERROR    0x0202
+#define TAG_GENERIC_ERROR      0x0203
+
+/* Discovery phase states */
+#define STATE_SENT_PADI     0
+#define STATE_RECEIVED_PADO 1
+#define STATE_SENT_PADR     2
+#define STATE_SESSION       3
+#define STATE_TERMINATED    4
+
+/* Header size of a PPPoE packet */
+#define PPPOE_OVERHEAD 6  /* type, code, session, length */
+#define HDR_SIZE (sizeof(struct ethhdr) + PPPOE_OVERHEAD)
+#define MAX_PPPOE_PAYLOAD (ETH_DATA_LEN - PPPOE_OVERHEAD)
+#define MAX_PPPOE_MTU (MAX_PPPOE_PAYLOAD - 2)
+
+#define MAX_SID 65534
+
+struct pppoe_tag_t
+{
+	struct list_head entry;
+	int type;
+	int len;
+};
+
+struct pppoe_packet_t
+{
+	uint8_t src[ETH_ALEN];
+	uint8_t dst[ETH_ALEN];
+	int code;
+	uint16_t sid;
+	struct list_head tags;
+};
+
+#endif
+