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Index of /FSS-OZR/root/sys/dev/char/4:50/subsystem/tty30
Index of /FSS-OZR/root/sys/dev/char/4:50/subsystem/tty30
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ƒiö]ÆÀÊ I 9/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Kernel Connection Multiplexor
*
* Copyright (c) 2016 Tom Herbert
*/
#ifndef __NET_KCM_H_
#define __NET_KCM_H_
#include
#include
#include
#include
extern unsigned int kcm_net_id;
#define KCM_STATS_ADD(stat, count) ((stat) += (count))
#define KCM_STATS_INCR(stat) ((stat)++)
struct kcm_psock_stats {
unsigned long long tx_msgs;
unsigned long long tx_bytes;
unsigned long long reserved;
unsigned long long unreserved;
unsigned int tx_aborts;
};
struct kcm_mux_stats {
unsigned long long rx_msgs;
unsigned long long rx_bytes;
unsigned long long tx_msgs;
unsigned long long tx_bytes;
unsigned int rx_ready_drops;
unsigned int tx_retries;
unsigned int psock_attach;
unsigned int psock_unattach_rsvd;
unsigned int psock_unattach;
};
struct kcm_stats {
unsigned long long rx_msgs;
unsigned long long rx_bytes;
unsigned long long tx_msgs;
unsigned long long tx_bytes;
};
struct kcm_tx_msg {
unsigned int sent;
unsigned int fragidx;
unsigned int frag_offset;
unsigned int msg_flags;
struct sk_buff *frag_skb;
struct sk_buff *last_skb;
};
/* Socket structure for KCM client sockets */
struct kcm_sock {
struct sock sk;
struct kcm_mux *mux;
struct list_head kcm_sock_list;
int index;
u32 done : 1;
struct work_struct done_work;
struct kcm_stats stats;
/* Transmit */
struct kcm_psock *tx_psock;
struct work_struct tx_work;
struct list_head wait_psock_list;
struct sk_buff *seq_skb;
u32 tx_stopped : 1;
/* Don't use bit fields here, these are set under different locks */
bool tx_wait;
bool tx_wait_more;
/* Receive */
struct kcm_psock *rx_psock;
struct list_head wait_rx_list; /* KCMs waiting for receiving */
bool rx_wait;
u32 rx_disabled : 1;
};
struct bpf_prog;
/* Structure for an attached lower socket */
struct kcm_psock {
struct sock *sk;
struct strparser strp;
struct kcm_mux *mux;
int index;
u32 tx_stopped : 1;
u32 done : 1;
u32 unattaching : 1;
void (*save_state_change)(struct sock *sk);
void (*save_data_ready)(struct sock *sk);
void (*save_write_space)(struct sock *sk);
struct list_head psock_list;
struct kcm_psock_stats stats;
/* Receive */
struct list_head psock_ready_list;
struct bpf_prog *bpf_prog;
struct kcm_sock *rx_kcm;
unsigned long long saved_rx_bytes;
unsigned long long saved_rx_msgs;
struct sk_buff *ready_rx_msg;
/* Transmit */
struct kcm_sock *tx_kcm;
struct list_head psock_avail_list;
unsigned long long saved_tx_bytes;
u