Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/net/llc/sysctl_net_llc.c b/net/llc/sysctl_net_llc.c
new file mode 100644
index 000000000..8443a6d84
--- /dev/null
+++ b/net/llc/sysctl_net_llc.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * sysctl_net_llc.c: sysctl interface to LLC net subsystem.
+ *
+ * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ */
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/sysctl.h>
+#include <net/net_namespace.h>
+#include <net/llc.h>
+
+#ifndef CONFIG_SYSCTL
+#error This file should not be compiled without CONFIG_SYSCTL defined
+#endif
+
+static struct ctl_table llc2_timeout_table[] = {
+	{
+		.procname	= "ack",
+		.data		= &sysctl_llc2_ack_timeout,
+		.maxlen		= sizeof(sysctl_llc2_ack_timeout),
+		.mode		= 0644,
+		.proc_handler   = proc_dointvec_jiffies,
+	},
+	{
+		.procname	= "busy",
+		.data		= &sysctl_llc2_busy_timeout,
+		.maxlen		= sizeof(sysctl_llc2_busy_timeout),
+		.mode		= 0644,
+		.proc_handler   = proc_dointvec_jiffies,
+	},
+	{
+		.procname	= "p",
+		.data		= &sysctl_llc2_p_timeout,
+		.maxlen		= sizeof(sysctl_llc2_p_timeout),
+		.mode		= 0644,
+		.proc_handler   = proc_dointvec_jiffies,
+	},
+	{
+		.procname	= "rej",
+		.data		= &sysctl_llc2_rej_timeout,
+		.maxlen		= sizeof(sysctl_llc2_rej_timeout),
+		.mode		= 0644,
+		.proc_handler   = proc_dointvec_jiffies,
+	},
+	{ },
+};
+
+static struct ctl_table llc_station_table[] = {
+	{ },
+};
+
+static struct ctl_table_header *llc2_timeout_header;
+static struct ctl_table_header *llc_station_header;
+
+int __init llc_sysctl_init(void)
+{
+	llc2_timeout_header = register_net_sysctl(&init_net, "net/llc/llc2/timeout", llc2_timeout_table);
+	llc_station_header = register_net_sysctl(&init_net, "net/llc/station", llc_station_table);
+
+	if (!llc2_timeout_header || !llc_station_header) {
+		llc_sysctl_exit();
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+void llc_sysctl_exit(void)
+{
+	if (llc2_timeout_header) {
+		unregister_net_sysctl_table(llc2_timeout_header);
+		llc2_timeout_header = NULL;
+	}
+	if (llc_station_header) {
+		unregister_net_sysctl_table(llc_station_header);
+		llc_station_header = NULL;
+	}
+}