From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/net/tipc/core.c | 51 ++++++++++++++++++++++++++++++++++++++++++++-------
1 files changed, 44 insertions(+), 7 deletions(-)
diff --git a/kernel/net/tipc/core.c b/kernel/net/tipc/core.c
index ce0f067..7724499 100644
--- a/kernel/net/tipc/core.c
+++ b/kernel/net/tipc/core.c
@@ -34,8 +34,6 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
#include "core.h"
#include "name_table.h"
#include "subscr.h"
@@ -43,6 +41,8 @@
#include "net.h"
#include "socket.h"
#include "bcast.h"
+#include "node.h"
+#include "crypto.h"
#include <linux/module.h>
@@ -59,6 +59,8 @@
tn->node_addr = 0;
tn->trial_addr = 0;
tn->addr_trial_end = 0;
+ tn->capabilities = TIPC_NODE_CAPABILITIES;
+ INIT_WORK(&tn->work, tipc_net_finalize_work);
memset(tn->node_id, 0, sizeof(tn->node_id));
memset(tn->node_id_string, 0, sizeof(tn->node_id_string));
tn->mon_threshold = TIPC_DEF_MON_THRESHOLD;
@@ -66,6 +68,11 @@
INIT_LIST_HEAD(&tn->node_list);
spin_lock_init(&tn->node_list_lock);
+#ifdef CONFIG_TIPC_CRYPTO
+ err = tipc_crypto_start(&tn->crypto_tx, net, NULL);
+ if (err)
+ goto out_crypto;
+#endif
err = tipc_sk_rht_init(net);
if (err)
goto out_sk_rht;
@@ -80,6 +87,10 @@
if (err)
goto out_bclink;
+ err = tipc_attach_loopback(net);
+ if (err)
+ goto out_bclink;
+
return 0;
out_bclink:
@@ -87,21 +98,40 @@
out_nametbl:
tipc_sk_rht_destroy(net);
out_sk_rht:
+
+#ifdef CONFIG_TIPC_CRYPTO
+ tipc_crypto_stop(&tn->crypto_tx);
+out_crypto:
+#endif
return err;
}
static void __net_exit tipc_exit_net(struct net *net)
{
- tipc_net_stop(net);
+ struct tipc_net *tn = tipc_net(net);
- /* Make sure the tipc_net_finalize_work stopped
- * before releasing the resources.
- */
- flush_scheduled_work();
+ tipc_detach_loopback(net);
+ tipc_net_stop(net);
+ /* Make sure the tipc_net_finalize_work() finished */
+ cancel_work_sync(&tn->work);
tipc_bcast_stop(net);
tipc_nametbl_stop(net);
tipc_sk_rht_destroy(net);
+#ifdef CONFIG_TIPC_CRYPTO
+ tipc_crypto_stop(&tipc_net(net)->crypto_tx);
+#endif
+ while (atomic_read(&tn->wq_count))
+ cond_resched();
}
+
+static void __net_exit tipc_pernet_pre_exit(struct net *net)
+{
+ tipc_node_pre_cleanup_net(net);
+}
+
+static struct pernet_operations tipc_pernet_pre_exit_ops = {
+ .pre_exit = tipc_pernet_pre_exit,
+};
static struct pernet_operations tipc_net_ops = {
.init = tipc_init_net,
@@ -141,6 +171,10 @@
if (err)
goto out_pernet_topsrv;
+ err = register_pernet_subsys(&tipc_pernet_pre_exit_ops);
+ if (err)
+ goto out_register_pernet_subsys;
+
err = tipc_bearer_setup();
if (err)
goto out_bearer;
@@ -161,6 +195,8 @@
out_netlink:
tipc_bearer_cleanup();
out_bearer:
+ unregister_pernet_subsys(&tipc_pernet_pre_exit_ops);
+out_register_pernet_subsys:
unregister_pernet_device(&tipc_topsrv_net_ops);
out_pernet_topsrv:
tipc_socket_stop();
@@ -178,6 +214,7 @@
tipc_netlink_compat_stop();
tipc_netlink_stop();
tipc_bearer_cleanup();
+ unregister_pernet_subsys(&tipc_pernet_pre_exit_ops);
unregister_pernet_device(&tipc_topsrv_net_ops);
tipc_socket_stop();
unregister_pernet_device(&tipc_net_ops);
--
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