修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/net/sched/act_nat.c
..
..
@@ -1,12 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Stateless NAT actions
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  *
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  * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License as published by the Free
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- * Software Foundation; either version 2 of the License, or (at your option)
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- * any later version.
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  */
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7
 
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 #include <linux/errno.h>
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@@ -21,6 +17,7 @@
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 #include <linux/string.h>
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 #include <linux/tc_act/tc_nat.h>
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 #include <net/act_api.h>
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+#include <net/pkt_cls.h>
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 #include <net/icmp.h>
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 #include <net/ip.h>
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 #include <net/netlink.h>
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@@ -38,10 +35,12 @@
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35
 
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 static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
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 			struct tc_action **a, int ovr, int bind,
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-			bool rtnl_held, struct netlink_ext_ack *extack)
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+			bool rtnl_held,	struct tcf_proto *tp,
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+			u32 flags, struct netlink_ext_ack *extack)
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 {
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 	struct tc_action_net *tn = net_generic(net, nat_net_id);
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 	struct nlattr *tb[TCA_NAT_MAX + 1];
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+	struct tcf_chain *goto_ch = NULL;
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 	struct tc_nat *parm;
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 	int ret = 0, err;
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 	struct tcf_nat *p;
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@@ -50,7 +49,8 @@
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 	if (nla == NULL)
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 		return -EINVAL;
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-	err = nla_parse_nested(tb, TCA_NAT_MAX, nla, nat_policy, NULL);
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+	err = nla_parse_nested_deprecated(tb, TCA_NAT_MAX, nla, nat_policy,
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+					  NULL);
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 	if (err < 0)
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 		return err;
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@@ -61,7 +61,7 @@
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 	err = tcf_idr_check_alloc(tn, &index, a, bind);
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 	if (!err) {
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 		ret = tcf_idr_create(tn, index, est, a,
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-				     &act_nat_ops, bind, false);
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+				     &act_nat_ops, bind, false, flags);
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 		if (ret) {
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 			tcf_idr_cleanup(tn, index);
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 			return ret;
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@@ -77,6 +77,9 @@
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 	} else {
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 		return err;
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 	}
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+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
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+	if (err < 0)
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+		goto release_idr;
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 	p = to_tcf_nat(*a);
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 	spin_lock_bh(&p->tcf_lock);
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@@ -85,13 +88,15 @@
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 	p->mask = parm->mask;
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 	p->flags = parm->flags;
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-	p->tcf_action = parm->action;
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+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
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 	spin_unlock_bh(&p->tcf_lock);
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-
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-	if (ret == ACT_P_CREATED)
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-		tcf_idr_insert(tn, *a);
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+	if (goto_ch)
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+		tcf_chain_put_by_act(goto_ch);
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 	return ret;
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+release_idr:
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+	tcf_idr_release(*a, bind);
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+	return err;
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 }
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 static int tcf_nat_act(struct sk_buff *skb, const struct tc_action *a,
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@@ -198,9 +203,7 @@
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 		icmph = (void *)(skb_network_header(skb) + ihl);
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-		if ((icmph->type != ICMP_DEST_UNREACH) &&
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-		    (icmph->type != ICMP_TIME_EXCEEDED) &&
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-		    (icmph->type != ICMP_PARAMETERPROB))
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+		if (!icmp_is_err(icmph->type))
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 			break;
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 		if (!pskb_may_pull(skb, ihl + sizeof(*icmph) + sizeof(*iph) +
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@@ -257,17 +260,18 @@
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 	unsigned char *b = skb_tail_pointer(skb);
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 	struct tcf_nat *p = to_tcf_nat(a);
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 	struct tc_nat opt = {
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-		.old_addr = p->old_addr,
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-		.new_addr = p->new_addr,
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-		.mask     = p->mask,
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-		.flags    = p->flags,
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-
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 		.index    = p->tcf_index,
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-		.action   = p->tcf_action,
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 		.refcnt   = refcount_read(&p->tcf_refcnt) - ref,
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 		.bindcnt  = atomic_read(&p->tcf_bindcnt) - bind,
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 	};
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 	struct tcf_t t;
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+
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+	spin_lock_bh(&p->tcf_lock);
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+	opt.old_addr = p->old_addr;
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+	opt.new_addr = p->new_addr;
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+	opt.mask = p->mask;
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+	opt.flags = p->flags;
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+	opt.action = p->tcf_action;
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 	if (nla_put(skb, TCA_NAT_PARMS, sizeof(opt), &opt))
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 		goto nla_put_failure;
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@@ -275,10 +279,12 @@
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 	tcf_tm_dump(&t, &p->tcf_tm);
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 	if (nla_put_64bit(skb, TCA_NAT_TM, sizeof(t), &t, TCA_NAT_PAD))
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 		goto nla_put_failure;
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+	spin_unlock_bh(&p->tcf_lock);
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 	return skb->len;
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 nla_put_failure:
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+	spin_unlock_bh(&p->tcf_lock);
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 	nlmsg_trim(skb, b);
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 	return -1;
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 }
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@@ -293,8 +299,7 @@
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 	return tcf_generic_walker(tn, skb, cb, type, ops, extack);
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 }
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-static int tcf_nat_search(struct net *net, struct tc_action **a, u32 index,
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-			  struct netlink_ext_ack *extack)
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+static int tcf_nat_search(struct net *net, struct tc_action **a, u32 index)
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 {
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 	struct tc_action_net *tn = net_generic(net, nat_net_id);
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@@ -303,7 +308,7 @@
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 static struct tc_action_ops act_nat_ops = {
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 	.kind		=	"nat",
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-	.type		=	TCA_ACT_NAT,
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+	.id		=	TCA_ID_NAT,
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 	.owner		=	THIS_MODULE,
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 	.act		=	tcf_nat_act,
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 	.dump		=	tcf_nat_dump,