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
12 static 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
28 static 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
42 int __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
53 void __net_exit tls_proc_fini(struct net *net)
54 {
55 remove_proc_entry("tls_stat", net->proc_net);
56 }
57
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