cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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tls_proc.c (1543B)

      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
     10static 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
     24static 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
     38int __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
     49void __net_exit tls_proc_fini(struct net *net)
     50{
     51	remove_proc_entry("tls_stat", net->proc_net);
     52}