From f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 01:04:47 +0000
Subject: [PATCH] add driver 5G
---
kernel/include/net/inet_connection_sock.h | 72 ++++++++++++++++++++++++-----------
1 files changed, 49 insertions(+), 23 deletions(-)
diff --git a/kernel/include/net/inet_connection_sock.h b/kernel/include/net/inet_connection_sock.h
index da8a582..5f7ee70 100644
--- a/kernel/include/net/inet_connection_sock.h
+++ b/kernel/include/net/inet_connection_sock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* NET Generic infrastructure for INET connection oriented protocols.
*
@@ -6,11 +7,6 @@
* Authors: Many people, see the TCP sources
*
* From code originally in TCP
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#ifndef _INET_CONNECTION_SOCK_H
#define _INET_CONNECTION_SOCK_H
@@ -20,6 +16,8 @@
#include <linux/timer.h>
#include <linux/poll.h>
#include <linux/kernel.h>
+#include <linux/sockptr.h>
+#include <linux/android_kabi.h>
#include <net/inet_sock.h>
#include <net/request_sock.h>
@@ -49,19 +47,13 @@
u16 net_frag_header_len;
u16 sockaddr_len;
int (*setsockopt)(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen);
+ sockptr_t optval, unsigned int optlen);
int (*getsockopt)(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
-#ifdef CONFIG_COMPAT
- int (*compat_setsockopt)(struct sock *sk,
- int level, int optname,
- char __user *optval, unsigned int optlen);
- int (*compat_getsockopt)(struct sock *sk,
- int level, int optname,
- char __user *optval, int __user *optlen);
-#endif
void (*addr2sockaddr)(struct sock *sk, struct sockaddr *);
void (*mtu_reduced)(struct sock *sk);
+
+ ANDROID_KABI_RESERVE(1);
};
/** inet_connection_sock - INET connection oriented sock
@@ -87,6 +79,8 @@
* @icsk_ext_hdr_len: Network protocol overhead (IP/IPv6 options)
* @icsk_ack: Delayed ACK control data
* @icsk_mtup; MTU probing control data
+ * @icsk_probes_tstamp: Probe timestamp (cleared by non-zero window ack)
+ * @icsk_user_timeout: TCP_USER_TIMEOUT value
*/
struct inet_connection_sock {
/* inet_sock has to be the first member! */
@@ -97,15 +91,18 @@
struct timer_list icsk_retransmit_timer;
struct timer_list icsk_delack_timer;
__u32 icsk_rto;
+ __u32 icsk_rto_min;
+ __u32 icsk_delack_max;
__u32 icsk_pmtu_cookie;
const struct tcp_congestion_ops *icsk_ca_ops;
const struct inet_connection_sock_af_ops *icsk_af_ops;
const struct tcp_ulp_ops *icsk_ulp_ops;
- void *icsk_ulp_data;
+ void __rcu *icsk_ulp_data;
void (*icsk_clean_acked)(struct sock *sk, u32 acked_seq);
struct hlist_node icsk_listen_portaddr_node;
unsigned int (*icsk_sync_mss)(struct sock *sk, u32 pmtu);
- __u8 icsk_ca_state:6,
+ __u8 icsk_ca_state:5,
+ icsk_ca_initialized:1,
icsk_ca_setsockopt:1,
icsk_ca_dst_locked:1;
__u8 icsk_retransmits;
@@ -118,7 +115,7 @@
__u8 pending; /* ACK is pending */
__u8 quick; /* Scheduled number of quick acks */
__u8 pingpong; /* The session is interactive */
- __u8 blocked; /* Delayed ACK was blocked by socket lock */
+ __u8 retry; /* Number of attempts */
__u32 ato; /* Predicted tick of soft clock */
unsigned long timeout; /* Currently scheduled timeout */
__u32 lrcvtime; /* timestamp of last received data packet */
@@ -137,7 +134,10 @@
u32 probe_timestamp;
} icsk_mtup;
+ u32 icsk_probes_tstamp;
u32 icsk_user_timeout;
+
+ ANDROID_KABI_RESERVE(1);
u64 icsk_ca_priv[104 / sizeof(u64)];
#define ICSK_CA_PRIV_SIZE (13 * sizeof(u64))
@@ -206,7 +206,8 @@
sk_stop_timer(sk, &icsk->icsk_retransmit_timer);
#endif
} else if (what == ICSK_TIME_DACK) {
- icsk->icsk_ack.blocked = icsk->icsk_ack.pending = 0;
+ icsk->icsk_ack.pending = 0;
+ icsk->icsk_ack.retry = 0;
#ifdef INET_CSK_CLEAR_TIMERS
sk_stop_timer(sk, &icsk->icsk_delack_timer);
#endif
@@ -291,6 +292,13 @@
bool inet_csk_reqsk_queue_drop(struct sock *sk, struct request_sock *req);
void inet_csk_reqsk_queue_drop_and_put(struct sock *sk, struct request_sock *req);
+static inline void inet_csk_prepare_for_destroy_sock(struct sock *sk)
+{
+ /* The below has to be done to allow calling inet_csk_destroy_sock */
+ sock_set_flag(sk, SOCK_DEAD);
+ percpu_counter_inc(sk->sk_prot->orphan_count);
+}
+
void inet_csk_destroy_sock(struct sock *sk);
void inet_csk_prepare_forced_close(struct sock *sk);
@@ -308,14 +316,32 @@
void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
-int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen);
-int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen);
-
/* update the fast reuse flag when adding a socket */
void inet_csk_update_fastreuse(struct inet_bind_bucket *tb,
struct sock *sk);
struct dst_entry *inet_csk_update_pmtu(struct sock *sk, u32 mtu);
+
+#define TCP_PINGPONG_THRESH 1
+
+static inline void inet_csk_enter_pingpong_mode(struct sock *sk)
+{
+ inet_csk(sk)->icsk_ack.pingpong = TCP_PINGPONG_THRESH;
+}
+
+static inline void inet_csk_exit_pingpong_mode(struct sock *sk)
+{
+ inet_csk(sk)->icsk_ack.pingpong = 0;
+}
+
+static inline bool inet_csk_in_pingpong_mode(struct sock *sk)
+{
+ return inet_csk(sk)->icsk_ack.pingpong >= TCP_PINGPONG_THRESH;
+}
+
+static inline bool inet_csk_has_ulp(struct sock *sk)
+{
+ return inet_sk(sk)->is_icsk && !!inet_csk(sk)->icsk_ulp_ops;
+}
+
#endif /* _INET_CONNECTION_SOCK_H */
--
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