From 8d2a02b24d66aa359e83eebc1ed3c0f85367a1cb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 16 May 2024 03:11:33 +0000
Subject: [PATCH] AX88772C_eeprom and ax8872c build together
---
kernel/net/ipv4/ping.c | 55 +++++++++++++++++++++++++------------------------------
1 files changed, 25 insertions(+), 30 deletions(-)
diff --git a/kernel/net/ipv4/ping.c b/kernel/net/ipv4/ping.c
index b068eb0..1bad851 100644
--- a/kernel/net/ipv4/ping.c
+++ b/kernel/net/ipv4/ping.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
* interface as the means of communication with the user level.
*
* "Ping" sockets
- *
- * 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.
*
* Based on ipv4/udp.c code.
*
@@ -17,7 +13,6 @@
*
* Pavel gave all rights to bugs to Vasiliy,
* none of the bugs are Pavel's now.
- *
*/
#include <linux/uaccess.h>
@@ -305,10 +300,12 @@
/* Checks the bind address and possibly modifies sk->sk_bound_dev_if. */
static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
- struct sockaddr *uaddr, int addr_len) {
+ struct sockaddr *uaddr, int addr_len)
+{
struct net *net = sock_net(sk);
if (sk->sk_family == AF_INET) {
struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
+ u32 tb_id = RT_TABLE_LOCAL;
int chk_addr_ret;
if (addr_len < sizeof(*addr))
@@ -322,10 +319,12 @@
pr_debug("ping_check_bind_addr(sk=%p,addr=%pI4,port=%d)\n",
sk, &addr->sin_addr.s_addr, ntohs(addr->sin_port));
- chk_addr_ret = inet_addr_type(net, addr->sin_addr.s_addr);
-
if (addr->sin_addr.s_addr == htonl(INADDR_ANY))
chk_addr_ret = RTN_LOCAL;
+ else {
+ tb_id = l3mdev_fib_table_by_index(net, sk->sk_bound_dev_if) ? : tb_id;
+ chk_addr_ret = inet_addr_type_table(net, addr->sin_addr.s_addr, tb_id);
+ }
if ((!inet_can_nonlocal_bind(net, isk) &&
chk_addr_ret != RTN_LOCAL) ||
@@ -363,6 +362,14 @@
return -ENODEV;
}
}
+
+ if (!dev && sk->sk_bound_dev_if) {
+ dev = dev_get_by_index_rcu(net, sk->sk_bound_dev_if);
+ if (!dev) {
+ rcu_read_unlock();
+ return -ENODEV;
+ }
+ }
has_addr = pingv6_ops.ipv6_chk_addr(net, &addr->sin6_addr, dev,
scoped);
rcu_read_unlock();
@@ -395,20 +402,6 @@
}
}
-static void ping_clear_saddr(struct sock *sk, int dif)
-{
- sk->sk_bound_dev_if = dif;
- if (sk->sk_family == AF_INET) {
- struct inet_sock *isk = inet_sk(sk);
- isk->inet_rcv_saddr = isk->inet_saddr = 0;
-#if IS_ENABLED(CONFIG_IPV6)
- } else if (sk->sk_family == AF_INET6) {
- struct ipv6_pinfo *np = inet6_sk(sk);
- memset(&sk->sk_v6_rcv_saddr, 0, sizeof(sk->sk_v6_rcv_saddr));
- memset(&np->saddr, 0, sizeof(np->saddr));
-#endif
- }
-}
/*
* We need our own bind because there are no privileged id's == local ports.
* Moreover, we don't allow binding to multi- and broadcast addresses.
@@ -432,12 +425,13 @@
goto out;
err = -EADDRINUSE;
- ping_set_saddr(sk, uaddr);
snum = ntohs(((struct sockaddr_in *)uaddr)->sin_port);
if (ping_get_port(sk, snum) != 0) {
- ping_clear_saddr(sk, dif);
+ /* Restore possibly modified sk->sk_bound_dev_if by ping_check_bind_addr(). */
+ sk->sk_bound_dev_if = dif;
goto out;
}
+ ping_set_saddr(sk, uaddr);
pr_debug("after bind(): num = %hu, dif = %d\n",
isk->inet_num,
@@ -659,7 +653,8 @@
}
int ping_common_sendmsg(int family, struct msghdr *msg, size_t len,
- void *user_icmph, size_t icmph_len) {
+ void *user_icmph, size_t icmph_len)
+{
u8 type, code;
if (len > 0xFFFF)
@@ -786,14 +781,14 @@
}
if (ipv4_is_multicast(daddr)) {
- if (!ipc.oif)
+ if (!ipc.oif || netif_index_is_l3_master(sock_net(sk), ipc.oif))
ipc.oif = inet->mc_index;
if (!saddr)
saddr = inet->mc_addr;
} else if (!ipc.oif)
ipc.oif = inet->uc_index;
- flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos,
+ flowi4_init_output(&fl4, ipc.oif, ipc.sockc.mark, tos,
RT_SCOPE_UNIVERSE, sk->sk_protocol,
inet_sk_flowi_flags(sk), faddr, saddr, 0, 0,
sk->sk_uid);
@@ -801,7 +796,7 @@
fl4.fl4_icmp_type = user_icmph.type;
fl4.fl4_icmp_code = user_icmph.code;
- security_sk_classify_flow(sk, flowi4_to_flowi(&fl4));
+ security_sk_classify_flow(sk, flowi4_to_flowi_common(&fl4));
rt = ip_route_output_flow(net, &fl4, sk);
if (IS_ERR(rt)) {
err = PTR_ERR(rt);
@@ -1125,7 +1120,7 @@
__u16 srcp = ntohs(inet->inet_sport);
seq_printf(f, "%5d: %08X:%04X %08X:%04X"
- " %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d",
+ " %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u",
bucket, src, srcp, dest, destp, sp->sk_state,
sk_wmem_alloc_get(sp),
sk_rmem_alloc_get(sp),
--
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