From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/net/rxrpc/peer_event.c | 98 +++++++++++++++----------------------------------
1 files changed, 30 insertions(+), 68 deletions(-)
diff --git a/kernel/net/rxrpc/peer_event.c b/kernel/net/rxrpc/peer_event.c
index 85bdc31..be03285 100644
--- a/kernel/net/rxrpc/peer_event.c
+++ b/kernel/net/rxrpc/peer_event.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* Peer event handling, typically ICMP messages.
*
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
- *
- * 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.
*/
#include <linux/module.h>
@@ -47,6 +43,8 @@
*/
switch (srx->transport.family) {
case AF_INET:
+ srx->transport_len = sizeof(srx->transport.sin);
+ srx->transport.family = AF_INET;
srx->transport.sin.sin_port = serr->port;
switch (serr->ee.ee_origin) {
case SO_EE_ORIGIN_ICMP:
@@ -70,20 +68,20 @@
#ifdef CONFIG_AF_RXRPC_IPV6
case AF_INET6:
- srx->transport.sin6.sin6_port = serr->port;
switch (serr->ee.ee_origin) {
case SO_EE_ORIGIN_ICMP6:
_net("Rx ICMP6");
+ srx->transport.sin6.sin6_port = serr->port;
memcpy(&srx->transport.sin6.sin6_addr,
skb_network_header(skb) + serr->addr_offset,
sizeof(struct in6_addr));
break;
case SO_EE_ORIGIN_ICMP:
_net("Rx ICMP on v6 sock");
- srx->transport.sin6.sin6_addr.s6_addr32[0] = 0;
- srx->transport.sin6.sin6_addr.s6_addr32[1] = 0;
- srx->transport.sin6.sin6_addr.s6_addr32[2] = htonl(0xffff);
- memcpy(srx->transport.sin6.sin6_addr.s6_addr + 12,
+ srx->transport_len = sizeof(srx->transport.sin);
+ srx->transport.family = AF_INET;
+ srx->transport.sin.sin_port = serr->port;
+ memcpy(&srx->transport.sin.sin_addr,
skb_network_header(skb) + serr->addr_offset,
sizeof(struct in_addr));
break;
@@ -149,35 +147,44 @@
{
struct sock_exterr_skb *serr;
struct sockaddr_rxrpc srx;
- struct rxrpc_local *local = sk->sk_user_data;
+ struct rxrpc_local *local;
struct rxrpc_peer *peer;
struct sk_buff *skb;
- if (unlikely(!local))
+ rcu_read_lock();
+ local = rcu_dereference_sk_user_data(sk);
+ if (unlikely(!local)) {
+ rcu_read_unlock();
return;
-
+ }
_enter("%p{%d}", sk, local->debug_id);
+
+ /* Clear the outstanding error value on the socket so that it doesn't
+ * cause kernel_sendmsg() to return it later.
+ */
+ sock_error(sk);
skb = sock_dequeue_err_skb(sk);
if (!skb) {
+ rcu_read_unlock();
_leave("UDP socket errqueue empty");
return;
}
- rxrpc_new_skb(skb, rxrpc_skb_rx_received);
+ rxrpc_new_skb(skb, rxrpc_skb_received);
serr = SKB_EXT_ERR(skb);
if (!skb->len && serr->ee.ee_origin == SO_EE_ORIGIN_TIMESTAMPING) {
_leave("UDP empty message");
- rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
+ rcu_read_unlock();
+ rxrpc_free_skb(skb, rxrpc_skb_freed);
return;
}
- rcu_read_lock();
peer = rxrpc_lookup_peer_icmp_rcu(local, skb, &srx);
if (peer && !rxrpc_get_peer_maybe(peer))
peer = NULL;
if (!peer) {
rcu_read_unlock();
- rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
+ rxrpc_free_skb(skb, rxrpc_skb_freed);
_leave(" [no peer]");
return;
}
@@ -189,7 +196,7 @@
serr->ee.ee_code == ICMP_FRAG_NEEDED)) {
rxrpc_adjust_mtu(peer, serr);
rcu_read_unlock();
- rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
+ rxrpc_free_skb(skb, rxrpc_skb_freed);
rxrpc_put_peer(peer);
_leave(" [MTU update]");
return;
@@ -197,7 +204,7 @@
rxrpc_store_error(peer, serr);
rcu_read_unlock();
- rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
+ rxrpc_free_skb(skb, rxrpc_skb_freed);
rxrpc_put_peer(peer);
_leave("");
@@ -264,6 +271,9 @@
break;
case SO_EE_ORIGIN_ICMP6:
+ if (err == EACCES)
+ err = EHOSTUNREACH;
+ fallthrough;
default:
_proto("Rx Received error report { orig=%u }", ee->ee_origin);
break;
@@ -282,56 +292,8 @@
hlist_for_each_entry_rcu(call, &peer->error_targets, error_link) {
rxrpc_see_call(call);
- if (call->state < RXRPC_CALL_COMPLETE &&
- rxrpc_set_call_completion(call, compl, 0, -error))
- rxrpc_notify_socket(call);
+ rxrpc_set_call_completion(call, compl, 0, -error);
}
-}
-
-/*
- * Add RTT information to cache. This is called in softirq mode and has
- * exclusive access to the peer RTT data.
- */
-void rxrpc_peer_add_rtt(struct rxrpc_call *call, enum rxrpc_rtt_rx_trace why,
- rxrpc_serial_t send_serial, rxrpc_serial_t resp_serial,
- ktime_t send_time, ktime_t resp_time)
-{
- struct rxrpc_peer *peer = call->peer;
- s64 rtt;
- u64 sum = peer->rtt_sum, avg;
- u8 cursor = peer->rtt_cursor, usage = peer->rtt_usage;
-
- rtt = ktime_to_ns(ktime_sub(resp_time, send_time));
- if (rtt < 0)
- return;
-
- spin_lock(&peer->rtt_input_lock);
-
- /* Replace the oldest datum in the RTT buffer */
- sum -= peer->rtt_cache[cursor];
- sum += rtt;
- peer->rtt_cache[cursor] = rtt;
- peer->rtt_cursor = (cursor + 1) & (RXRPC_RTT_CACHE_SIZE - 1);
- peer->rtt_sum = sum;
- if (usage < RXRPC_RTT_CACHE_SIZE) {
- usage++;
- peer->rtt_usage = usage;
- }
-
- spin_unlock(&peer->rtt_input_lock);
-
- /* Now recalculate the average */
- if (usage == RXRPC_RTT_CACHE_SIZE) {
- avg = sum / RXRPC_RTT_CACHE_SIZE;
- } else {
- avg = sum;
- do_div(avg, usage);
- }
-
- /* Don't need to update this under lock */
- peer->rtt = avg;
- trace_rxrpc_rtt_rx(call, why, send_serial, resp_serial, rtt,
- usage, avg);
}
/*
--
Gitblit v1.6.2