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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2013-2018, 2021, The Linux Foundation. All rights reserved.
*/
#ifndef _RMNET_MAP_H_
#define _RMNET_MAP_H_
#include <linux/if_rmnet.h>
struct rmnet_map_control_command {
u8 command_name;
u8 cmd_type:2;
u8 reserved:6;
u16 reserved2;
u32 transaction_id;
union {
struct {
u16 ip_family:2;
u16 reserved:14;
__be16 flow_control_seq_num;
__be32 qos_id;
} flow_control;
u8 data[0];
};
} __aligned(1);
enum rmnet_map_commands {
RMNET_MAP_COMMAND_NONE,
RMNET_MAP_COMMAND_FLOW_DISABLE,
RMNET_MAP_COMMAND_FLOW_ENABLE,
/* These should always be the last 2 elements */
RMNET_MAP_COMMAND_UNKNOWN,
RMNET_MAP_COMMAND_ENUM_LENGTH
};
#define RMNET_MAP_COMMAND_REQUEST 0
#define RMNET_MAP_COMMAND_ACK 1
#define RMNET_MAP_COMMAND_UNSUPPORTED 2
#define RMNET_MAP_COMMAND_INVALID 3
#define RMNET_MAP_NO_PAD_BYTES 0
#define RMNET_MAP_ADD_PAD_BYTES 1
struct sk_buff *rmnet_map_deaggregate(struct sk_buff *skb,
struct rmnet_port *port);
struct rmnet_map_header *rmnet_map_add_map_header(struct sk_buff *skb,
int hdrlen,
struct rmnet_port *port,
int pad);
void rmnet_map_command(struct sk_buff *skb, struct rmnet_port *port);
int rmnet_map_checksum_downlink_packet(struct sk_buff *skb, u16 len);
void rmnet_map_checksum_uplink_packet(struct sk_buff *skb,
struct rmnet_port *port,
struct net_device *orig_dev,
int csum_type);
int rmnet_map_process_next_hdr_packet(struct sk_buff *skb, u16 len);
#endif /* _RMNET_MAP_H_ */
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