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net/tls: add skeleton of MIB statistics

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Add a skeleton structure for adding TLS statistics.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2019-10-04 16:19:24 -07:00 • committed by David S. Miller
parent 9ec1c6ac27
commit d26b698dd3
8 changed files with 110 additions and 1 deletions
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3
include/net/netns/mib.h
View file

@ -24,6 +24,9 @@ struct netns_mib {
#ifdef CONFIG_XFRM_STATISTICS
DEFINE_SNMP_STAT(struct linux_xfrm_mib, xfrm_statistics);
#endif
#if IS_ENABLED(CONFIG_TLS)
DEFINE_SNMP_STAT(struct linux_tls_mib, tls_statistics);
#endif
};
#endif

6
include/net/snmp.h
View file

@ -111,6 +111,12 @@ struct linux_xfrm_mib {
unsigned long mibs[LINUX_MIB_XFRMMAX];
};
/* Linux TLS */
#define LINUX_MIB_TLSMAX __LINUX_MIB_TLSMAX
struct linux_tls_mib {
unsigned long mibs[LINUX_MIB_TLSMAX];
};
#define DEFINE_SNMP_STAT(type, name) \
__typeof__(type) __percpu *name
#define DEFINE_SNMP_STAT_ATOMIC(type, name) \

13
include/net/tls.h
View file

@ -43,6 +43,7 @@
#include <linux/netdevice.h>
#include <linux/rcupdate.h>
#include <net/net_namespace.h>
#include <net/tcp.h>
#include <net/strparser.h>
#include <crypto/aead.h>
@ -73,6 +74,15 @@
*/
#define TLS_AES_CCM_IV_B0_BYTE 2
#define __TLS_INC_STATS(net, field) \
__SNMP_INC_STATS((net)->mib.tls_statistics, field)
#define TLS_INC_STATS(net, field) \
SNMP_INC_STATS((net)->mib.tls_statistics, field)
#define __TLS_DEC_STATS(net, field) \
__SNMP_DEC_STATS((net)->mib.tls_statistics, field)
#define TLS_DEC_STATS(net, field) \
SNMP_DEC_STATS((net)->mib.tls_statistics, field)
enum {
TLS_BASE,
TLS_SW,
@ -605,6 +615,9 @@ static inline bool tls_offload_tx_resync_pending(struct sock *sk)
return ret;
}
int __net_init tls_proc_init(struct net *net);
void __net_exit tls_proc_fini(struct net *net);
int tls_proccess_cmsg(struct sock *sk, struct msghdr *msg,
unsigned char *record_type);
int decrypt_skb(struct sock *sk, struct sk_buff *skb,