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/netfilter/nfnetlink.c | 62 ++++++++++++++++++++++++-------
1 files changed, 48 insertions(+), 14 deletions(-)
diff --git a/kernel/net/netfilter/nfnetlink.c b/kernel/net/netfilter/nfnetlink.c
index 9bacddc..bec9ac8 100644
--- a/kernel/net/netfilter/nfnetlink.c
+++ b/kernel/net/netfilter/nfnetlink.c
@@ -33,6 +33,7 @@
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
MODULE_ALIAS_NET_PF_PROTO(PF_NETLINK, NETLINK_NETFILTER);
+MODULE_DESCRIPTION("Netfilter messages via netlink socket");
#define nfnl_dereference_protected(id) \
rcu_dereference_protected(table[(id)].subsys, \
@@ -44,6 +45,23 @@
struct mutex mutex;
const struct nfnetlink_subsystem __rcu *subsys;
} table[NFNL_SUBSYS_COUNT];
+
+static struct lock_class_key nfnl_lockdep_keys[NFNL_SUBSYS_COUNT];
+
+static const char *const nfnl_lockdep_names[NFNL_SUBSYS_COUNT] = {
+ [NFNL_SUBSYS_NONE] = "nfnl_subsys_none",
+ [NFNL_SUBSYS_CTNETLINK] = "nfnl_subsys_ctnetlink",
+ [NFNL_SUBSYS_CTNETLINK_EXP] = "nfnl_subsys_ctnetlink_exp",
+ [NFNL_SUBSYS_QUEUE] = "nfnl_subsys_queue",
+ [NFNL_SUBSYS_ULOG] = "nfnl_subsys_ulog",
+ [NFNL_SUBSYS_OSF] = "nfnl_subsys_osf",
+ [NFNL_SUBSYS_IPSET] = "nfnl_subsys_ipset",
+ [NFNL_SUBSYS_ACCT] = "nfnl_subsys_acct",
+ [NFNL_SUBSYS_CTNETLINK_TIMEOUT] = "nfnl_subsys_cttimeout",
+ [NFNL_SUBSYS_CTHELPER] = "nfnl_subsys_cthelper",
+ [NFNL_SUBSYS_NFTABLES] = "nfnl_subsys_nftables",
+ [NFNL_SUBSYS_NFT_COMPAT] = "nfnl_subsys_nftcompat",
+};
static const int nfnl_group2type[NFNLGRP_MAX+1] = {
[NFNLGRP_CONNTRACK_NEW] = NFNL_SUBSYS_CTNETLINK,
@@ -211,8 +229,9 @@
return -ENOMEM;
}
- err = nla_parse(cda, ss->cb[cb_id].attr_count, attr, attrlen,
- ss->cb[cb_id].policy, extack);
+ err = nla_parse_deprecated(cda, ss->cb[cb_id].attr_count,
+ attr, attrlen,
+ ss->cb[cb_id].policy, extack);
if (err < 0) {
rcu_read_unlock();
return err;
@@ -314,7 +333,7 @@
return netlink_ack(skb, nlh, -EINVAL, NULL);
replay:
status = 0;
-
+replay_abort:
skb = netlink_skb_clone(oskb, GFP_KERNEL);
if (!skb)
return netlink_ack(oskb, nlh, -ENOMEM, NULL);
@@ -426,8 +445,10 @@
goto ack;
}
- err = nla_parse(cda, ss->cb[cb_id].attr_count, attr,
- attrlen, ss->cb[cb_id].policy, NULL);
+ err = nla_parse_deprecated(cda,
+ ss->cb[cb_id].attr_count,
+ attr, attrlen,
+ ss->cb[cb_id].policy, NULL);
if (err < 0)
goto ack;
@@ -452,7 +473,8 @@
* processed, this avoids that the same error is
* reported several times when replaying the batch.
*/
- if (nfnl_err_add(&err_list, nlh, err, &extack) < 0) {
+ if (err == -ENOMEM ||
+ nfnl_err_add(&err_list, nlh, err, &extack) < 0) {
/* We failed to enqueue an error, reset the
* list of errors and send OOM to userspace
* pointing to the batch header.
@@ -478,7 +500,7 @@
}
done:
if (status & NFNL_BATCH_REPLAY) {
- ss->abort(net, oskb);
+ ss->abort(net, oskb, NFNL_ABORT_AUTOLOAD);
nfnl_err_reset(&err_list);
kfree_skb(skb);
module_put(ss->owner);
@@ -489,14 +511,26 @@
status |= NFNL_BATCH_REPLAY;
goto done;
} else if (err) {
- ss->abort(net, oskb);
+ ss->abort(net, oskb, NFNL_ABORT_NONE);
netlink_ack(oskb, nlmsg_hdr(oskb), err, NULL);
}
} else {
- ss->abort(net, oskb);
+ enum nfnl_abort_action abort_action;
+
+ if (status & NFNL_BATCH_FAILURE)
+ abort_action = NFNL_ABORT_NONE;
+ else
+ abort_action = NFNL_ABORT_VALIDATE;
+
+ err = ss->abort(net, oskb, abort_action);
+ if (err == -EAGAIN) {
+ nfnl_err_reset(&err_list);
+ kfree_skb(skb);
+ module_put(ss->owner);
+ status |= NFNL_BATCH_FAILURE;
+ goto replay_abort;
+ }
}
- if (ss->cleanup)
- ss->cleanup(net);
nfnl_err_deliver(&err_list, oskb);
kfree_skb(skb);
@@ -525,8 +559,8 @@
if (skb->len < NLMSG_HDRLEN + sizeof(struct nfgenmsg))
return;
- err = nla_parse(cda, NFNL_BATCH_MAX, attr, attrlen, nfnl_batch_policy,
- NULL);
+ err = nla_parse_deprecated(cda, NFNL_BATCH_MAX, attr, attrlen,
+ nfnl_batch_policy, NULL);
if (err < 0) {
netlink_ack(skb, nlh, err, NULL);
return;
@@ -628,7 +662,7 @@
BUG_ON(nfnl_group2type[i] == NFNL_SUBSYS_NONE);
for (i=0; i<NFNL_SUBSYS_COUNT; i++)
- mutex_init(&table[i].mutex);
+ __mutex_init(&table[i].mutex, nfnl_lockdep_names[i], &nfnl_lockdep_keys[i]);
return register_pernet_subsys(&nfnetlink_net_ops);
}
--
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