1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2/* Copyright (C) 2019 Netronome Systems, Inc. */
3
4#include <linux/proc_fs.h>
5#include <linux/seq_file.h>
6#include <net/snmp.h>
7#include <net/tls.h>
8
9#include "tls.h"
10
11#ifdef CONFIG_PROC_FS
12static const struct snmp_mib tls_mib_list[] = {
13	SNMP_MIB_ITEM("TlsCurrTxSw", LINUX_MIB_TLSCURRTXSW),
14	SNMP_MIB_ITEM("TlsCurrRxSw", LINUX_MIB_TLSCURRRXSW),
15	SNMP_MIB_ITEM("TlsCurrTxDevice", LINUX_MIB_TLSCURRTXDEVICE),
16	SNMP_MIB_ITEM("TlsCurrRxDevice", LINUX_MIB_TLSCURRRXDEVICE),
17	SNMP_MIB_ITEM("TlsTxSw", LINUX_MIB_TLSTXSW),
18	SNMP_MIB_ITEM("TlsRxSw", LINUX_MIB_TLSRXSW),
19	SNMP_MIB_ITEM("TlsTxDevice", LINUX_MIB_TLSTXDEVICE),
20	SNMP_MIB_ITEM("TlsRxDevice", LINUX_MIB_TLSRXDEVICE),
21	SNMP_MIB_ITEM("TlsDecryptError", LINUX_MIB_TLSDECRYPTERROR),
22	SNMP_MIB_ITEM("TlsRxDeviceResync", LINUX_MIB_TLSRXDEVICERESYNC),
23	SNMP_MIB_ITEM("TlsDecryptRetry", LINUX_MIB_TLSDECRYPTRETRY),
24	SNMP_MIB_ITEM("TlsRxNoPadViolation", LINUX_MIB_TLSRXNOPADVIOL),
25	SNMP_MIB_SENTINEL
26};
27
28static int tls_statistics_seq_show(struct seq_file *seq, void *v)
29{
30	unsigned long buf[LINUX_MIB_TLSMAX] = {};
31	struct net *net = seq->private;
32	int i;
33
34	snmp_get_cpu_field_batch(buf, tls_mib_list, net->mib.tls_statistics);
35	for (i = 0; tls_mib_list[i].name; i++)
36		seq_printf(seq, "%-32s\t%lu\n", tls_mib_list[i].name, buf[i]);
37
38	return 0;
39}
40#endif
41
42int __net_init tls_proc_init(struct net *net)
43{
44#ifdef CONFIG_PROC_FS
45	if (!proc_create_net_single("tls_stat", 0444, net->proc_net,
46				    tls_statistics_seq_show, NULL))
47		return -ENOMEM;
48#endif /* CONFIG_PROC_FS */
49
50	return 0;
51}
52
53void __net_exit tls_proc_fini(struct net *net)
54{
55	remove_proc_entry("tls_stat", net->proc_net);
56}
57