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 #ifdef CONFIG_PROC_FS
10 static const struct snmp_mib tls_mib_list[] = {
11 SNMP_MIB_ITEM("TlsCurrTxSw", LINUX_MIB_TLSCURRTXSW),
12 SNMP_MIB_ITEM("TlsCurrRxSw", LINUX_MIB_TLSCURRRXSW),
13 SNMP_MIB_ITEM("TlsCurrTxDevice", LINUX_MIB_TLSCURRTXDEVICE),
14 SNMP_MIB_ITEM("TlsCurrRxDevice", LINUX_MIB_TLSCURRRXDEVICE),
15 SNMP_MIB_ITEM("TlsTxSw", LINUX_MIB_TLSTXSW),
16 SNMP_MIB_ITEM("TlsRxSw", LINUX_MIB_TLSRXSW),
17 SNMP_MIB_ITEM("TlsTxDevice", LINUX_MIB_TLSTXDEVICE),
18 SNMP_MIB_ITEM("TlsRxDevice", LINUX_MIB_TLSRXDEVICE),
19 SNMP_MIB_ITEM("TlsDecryptError", LINUX_MIB_TLSDECRYPTERROR),
20 SNMP_MIB_ITEM("TlsRxDeviceResync", LINUX_MIB_TLSRXDEVICERESYNC),
21 SNMP_MIB_SENTINEL
22 };
23
tls_statistics_seq_show(struct seq_file * seq,void * v)24 static int tls_statistics_seq_show(struct seq_file *seq, void *v)
25 {
26 unsigned long buf[LINUX_MIB_TLSMAX] = {};
27 struct net *net = seq->private;
28 int i;
29
30 snmp_get_cpu_field_batch(buf, tls_mib_list, net->mib.tls_statistics);
31 for (i = 0; tls_mib_list[i].name; i++)
32 seq_printf(seq, "%-32s\t%lu\n", tls_mib_list[i].name, buf[i]);
33
34 return 0;
35 }
36 #endif
37
tls_proc_init(struct net * net)38 int __net_init tls_proc_init(struct net *net)
39 {
40 #ifdef CONFIG_PROC_FS
41 if (!proc_create_net_single("tls_stat", 0444, net->proc_net,
42 tls_statistics_seq_show, NULL))
43 return -ENOMEM;
44 #endif /* CONFIG_PROC_FS */
45
46 return 0;
47 }
48
tls_proc_fini(struct net * net)49 void __net_exit tls_proc_fini(struct net *net)
50 {
51 remove_proc_entry("tls_stat", net->proc_net);
52 }
53