| /* |
| ************************************************************************** |
| * Copyright (c) 2015-2016, The Linux Foundation. All rights reserved. |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all copies. |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| ************************************************************************** |
| */ |
| |
| /* |
| * nss_connnmgr_pptp.h |
| * NSS PPTP client definitions |
| */ |
| |
| #ifndef _NSS_CONNMGR_PPTP_H_ |
| #define _NSS_CONNMGR_PPTP_H_ |
| |
| /* |
| * ------------------------------------------------------------------ |
| * | | | | | |
| * | ip header | GRE header |ppp header | ppp payload | |
| * | | | | (IP data gram)| |
| * | | | | | |
| * |----------------------------------------------------------------- |
| * PPTP over GRE |
| */ |
| |
| #define NSS_PPTP_GRE_PROTO 0x880B |
| #define NSS_PPTP_GRE_VER 0x1 |
| #define NSS_PPTP_GRE_HAS_ACK 0x80 |
| #define NSS_PPTP_GRE_HAS_SEQ 0x10 |
| |
| /* |
| * GRE Header Structure |
| */ |
| struct nss_pptp_gre_hdr { |
| uint8_t flags; |
| uint8_t flags_ver; |
| uint16_t protocol; |
| uint16_t payload_len; |
| uint16_t call_id; |
| uint32_t seq; |
| uint32_t ack; |
| }; |
| |
| /* |
| * Structure for PPTP client driver session info |
| */ |
| struct nss_connmgr_pptp_session_info { |
| uint32_t src_call; |
| uint32_t dst_call; |
| uint32_t src_ip; |
| uint32_t dst_ip; |
| }; |
| |
| /* |
| * Structure for PPTP session entry into HASH table |
| */ |
| struct nss_connmgr_pptp_session_entry { |
| struct nss_connmgr_pptp_session_info data; |
| struct net_device *dev; |
| struct net_device *phy_dev; |
| struct hlist_node hash_list; |
| }; |
| |
| #endif |
