1 /* Copyright (c) 2013-2018, The Linux Foundation. All rights reserved.
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
16 struct rmnet_map_control_command {
26 __be16 flow_control_seq_num;
33 enum rmnet_map_commands {
34 RMNET_MAP_COMMAND_NONE,
35 RMNET_MAP_COMMAND_FLOW_DISABLE,
36 RMNET_MAP_COMMAND_FLOW_ENABLE,
37 /* These should always be the last 2 elements */
38 RMNET_MAP_COMMAND_UNKNOWN,
39 RMNET_MAP_COMMAND_ENUM_LENGTH
42 struct rmnet_map_header {
50 struct rmnet_map_dl_csum_trailer {
54 u16 csum_start_offset;
59 struct rmnet_map_ul_csum_header {
60 __be16 csum_start_offset;
61 u16 csum_insert_offset:14;
66 #define RMNET_MAP_GET_MUX_ID(Y) (((struct rmnet_map_header *) \
68 #define RMNET_MAP_GET_CD_BIT(Y) (((struct rmnet_map_header *) \
70 #define RMNET_MAP_GET_PAD(Y) (((struct rmnet_map_header *) \
72 #define RMNET_MAP_GET_CMD_START(Y) ((struct rmnet_map_control_command *) \
74 sizeof(struct rmnet_map_header)))
75 #define RMNET_MAP_GET_LENGTH(Y) (ntohs(((struct rmnet_map_header *) \
78 #define RMNET_MAP_COMMAND_REQUEST 0
79 #define RMNET_MAP_COMMAND_ACK 1
80 #define RMNET_MAP_COMMAND_UNSUPPORTED 2
81 #define RMNET_MAP_COMMAND_INVALID 3
83 #define RMNET_MAP_NO_PAD_BYTES 0
84 #define RMNET_MAP_ADD_PAD_BYTES 1
86 struct sk_buff *rmnet_map_deaggregate(struct sk_buff *skb,
87 struct rmnet_port *port);
88 struct rmnet_map_header *rmnet_map_add_map_header(struct sk_buff *skb,
90 void rmnet_map_command(struct sk_buff *skb, struct rmnet_port *port);
91 int rmnet_map_checksum_downlink_packet(struct sk_buff *skb, u16 len);
92 void rmnet_map_checksum_uplink_packet(struct sk_buff *skb,
93 struct net_device *orig_dev);
95 #endif /* _RMNET_MAP_H_ */