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The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Drops are currently accounted only via the undifferentiated netdev rx/tx_dropped counters, hiding the actual drop reason. Add per-peer atomic64_t counters (struct ovpn_peer_estats) for the significant [...] Content analysis details: (-0.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-Headers-End: 1x2bDi-00021j-Ax Subject: [Openvpn-devel] [RFC ovpn net-next 1/2] ovpn: extend statistics with per-peer drop and event counters X-BeenThere: openvpn-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Antonio Quartulli Errors-To: openvpn-devel-bounces@lists.sourceforge.net X-getmail-retrieved-from-mailbox: Inbox X-GMAIL-THRID: 1875437321585150176 X-GMAIL-MSGID: 1875437321585150176 Drops are currently accounted only via the undifferentiated netdev rx/tx_dropped counters, hiding the actual drop reason. Add per-peer atomic64_t counters (struct ovpn_peer_estats) for the significant drop reasons and events in the data path: * RX: decrypt errors, replay errors, unknown key-id, unsupported inner protocol, RPF check failures * TX: encrypt errors, IV exhaustion, missing primary key, missing transport, GSO segmentation errors * events: keepalives received/sent, endpoint floats Only ovpn-specific drop reasons are covered. Generic ENOMEM failures and teardown races are not accounted. Export the counters in a new OVPN_A_PEER_ESTATS nest in the OVPN_CMD_PEER_GET reply and teach ovpn-cli to print them. Signed-off-by: Marco Baffo --- Documentation/netlink/specs/ovpn.yaml | 62 +++++++++++++++++++++ drivers/net/ovpn/io.c | 25 +++++++-- drivers/net/ovpn/netlink-gen.c | 19 ++++++- drivers/net/ovpn/netlink-gen.h | 3 +- drivers/net/ovpn/netlink.c | 37 +++++++++++- drivers/net/ovpn/peer.c | 5 ++ drivers/net/ovpn/peer.h | 2 + drivers/net/ovpn/stats.h | 33 +++++++++++ include/uapi/linux/ovpn.h | 20 +++++++ tools/testing/selftests/net/ovpn/ovpn-cli.c | 60 ++++++++++++++++++++ 10 files changed, 259 insertions(+), 7 deletions(-) diff --git a/Documentation/netlink/specs/ovpn.yaml b/Documentation/netlink/specs/ovpn.yaml index ac50d1d7c00a..dd1bb96c312d 100644 --- a/Documentation/netlink/specs/ovpn.yaml +++ b/Documentation/netlink/specs/ovpn.yaml @@ -175,6 +175,68 @@ attribute-sets: will advertise the tx-id to be used on the link. checks: max: 0xFFFFFF + - + name: estats + type: nest + doc: Extended statistics, per-peer drop/event counters + nested-attributes: peer-estats + - + name: peer-estats + attributes: + - + name: rx-decrypt-errors + type: uint + doc: Number of packets dropped due to decryption failure + - + name: rx-replay-errors + type: uint + doc: Number of packets dropped by the replay protection check + - + name: rx-unknown-keyid + type: uint + doc: Number of packets dropped due to unknown key ID + - + name: rx-unsupported-proto + type: uint + doc: >- + Number of packets dropped due to unsupported or malformed inner + protocol + - + name: rx-rpf-errors + type: uint + doc: Number of packets dropped by the reverse path filtering check + - + name: tx-encrypt-errors + type: uint + doc: Number of packets dropped due to encryption failure + - + name: tx-iv-exhausted + type: uint + doc: Number of packets dropped due to packet ID (IV) exhaustion + - + name: tx-no-key + type: uint + doc: Number of packets dropped due to missing primary key + - + name: tx-no-transport + type: uint + doc: Number of packets dropped due to missing transport socket + - + name: tx-gso-errors + type: uint + doc: Number of packets dropped due to GSO segmentation failure + - + name: keepalive-rx + type: uint + doc: Number of keepalive packets received from this peer + - + name: keepalive-tx + type: uint + doc: Number of keepalive packets sent to this peer + - + name: float-count + type: uint + doc: Number of times the peer endpoint floated - name: peer-new-input subset-of: peer diff --git a/drivers/net/ovpn/io.c b/drivers/net/ovpn/io.c index 9a66d693039a..f9379d8c9c08 100644 --- a/drivers/net/ovpn/io.c +++ b/drivers/net/ovpn/io.c @@ -128,8 +128,10 @@ void ovpn_decrypt_post(void *data, int ret) /* crypto is done, cleanup skb CB and its members */ kfree(ovpn_skb_cb(skb)->crypto_tmp); - if (unlikely(ret < 0)) + if (unlikely(ret < 0)) { + atomic64_inc(&peer->estats.rx_decrypt_errors); goto drop; + } /* PID sits after the op */ pid = (__force __be32 *)(skb->data + OVPN_OPCODE_SIZE); @@ -138,6 +140,7 @@ void ovpn_decrypt_post(void *data, int ret) net_err_ratelimited("%s: PKT ID RX error for peer %u: %d\n", netdev_name(peer->ovpn->dev), peer->id, ret); + atomic64_inc(&peer->estats.rx_replay_errors); goto drop; } @@ -165,6 +168,7 @@ void ovpn_decrypt_post(void *data, int ret) net_info_ratelimited("%s: NULL packet received from peer %u\n", netdev_name(peer->ovpn->dev), peer->id); + atomic64_inc(&peer->estats.rx_unsupported_proto); goto drop; } @@ -172,6 +176,7 @@ void ovpn_decrypt_post(void *data, int ret) net_dbg_ratelimited("%s: ping received from peer %u\n", netdev_name(peer->ovpn->dev), peer->id); + atomic64_inc(&peer->estats.keepalive_rx); /* we drop the packet, but this is not a failure */ consume_skb(skb); goto drop_nocount; @@ -179,6 +184,7 @@ void ovpn_decrypt_post(void *data, int ret) net_info_ratelimited("%s: unsupported protocol received from peer %u\n", netdev_name(peer->ovpn->dev), peer->id); + atomic64_inc(&peer->estats.rx_unsupported_proto); goto drop; } skb->protocol = proto; @@ -193,6 +199,7 @@ void ovpn_decrypt_post(void *data, int ret) net_dbg_ratelimited("%s: RPF dropped packet from peer %u, src: %pI4\n", netdev_name(peer->ovpn->dev), peer->id, &ip_hdr(skb)->saddr); + atomic64_inc(&peer->estats.rx_rpf_errors); goto drop; } @@ -225,6 +232,7 @@ void ovpn_recv(struct ovpn_peer *peer, struct sk_buff *skb) net_info_ratelimited("%s: no available key for peer %u, key-id: %u\n", netdev_name(peer->ovpn->dev), peer->id, key_id); + atomic64_inc(&peer->estats.rx_unknown_keyid); ovpn_dev_dstats_rx_dropped(peer->ovpn->dev); kfree_skb(skb); ovpn_peer_put(peer); @@ -266,19 +274,24 @@ void ovpn_encrypt_post(void *data, int ret) /* let userspace know so that a new key must be negotiated */ ovpn_nl_key_swap_notify(peer, ks->key_id); + atomic64_inc(&peer->estats.tx_iv_exhausted); goto err; } - if (unlikely(ret < 0)) + if (unlikely(ret < 0)) { + atomic64_inc(&peer->estats.tx_encrypt_errors); goto err; + } skb_mark_not_on_list(skb); orig_len = skb->len; rcu_read_lock(); sock = rcu_dereference(peer->sock); - if (unlikely(!sock)) + if (unlikely(!sock)) { + atomic64_inc(&peer->estats.tx_no_transport); goto err_unlock; + } switch (sock->sk->sk_protocol) { case IPPROTO_UDP: @@ -289,6 +302,7 @@ void ovpn_encrypt_post(void *data, int ret) break; default: /* no transport configured yet */ + atomic64_inc(&peer->estats.tx_no_transport); goto err_unlock; } @@ -315,8 +329,10 @@ static bool ovpn_encrypt_one(struct ovpn_peer *peer, struct sk_buff *skb) /* get primary key to be used for encrypting data */ ks = ovpn_crypto_key_slot_primary(&peer->crypto); - if (unlikely(!ks)) + if (unlikely(!ks)) { + atomic64_inc(&peer->estats.tx_no_key); return false; + } /* take a reference to the peer because the crypto code may run async. * ovpn_encrypt_post() will release it upon completion @@ -397,6 +413,7 @@ netdev_tx_t ovpn_net_xmit(struct sk_buff *skb, struct net_device *dev) ret = PTR_ERR(segments); net_err_ratelimited("%s: cannot segment payload packet: %d\n", netdev_name(dev), ret); + atomic64_inc(&peer->estats.tx_gso_errors); goto drop; } diff --git a/drivers/net/ovpn/netlink-gen.c b/drivers/net/ovpn/netlink-gen.c index 92d2fdc17c2e..d427db6c563f 100644 --- a/drivers/net/ovpn/netlink-gen.c +++ b/drivers/net/ovpn/netlink-gen.c @@ -63,7 +63,7 @@ const struct nla_policy ovpn_keydir_nl_policy[OVPN_A_KEYDIR_NONCE_TAIL + 1] = { [OVPN_A_KEYDIR_NONCE_TAIL] = NLA_POLICY_EXACT_LEN(OVPN_NONCE_TAIL_SIZE), }; -const struct nla_policy ovpn_peer_nl_policy[OVPN_A_PEER_TX_ID + 1] = { +const struct nla_policy ovpn_peer_nl_policy[OVPN_A_PEER_ESTATS + 1] = { [OVPN_A_PEER_ID] = NLA_POLICY_FULL_RANGE(NLA_U32, &ovpn_a_peer_id_range), [OVPN_A_PEER_REMOTE_IPV4] = { .type = NLA_BE32, }, [OVPN_A_PEER_REMOTE_IPV6] = NLA_POLICY_EXACT_LEN(16), @@ -88,12 +88,29 @@ const struct nla_policy ovpn_peer_nl_policy[OVPN_A_PEER_TX_ID + 1] = { [OVPN_A_PEER_LINK_RX_PACKETS] = { .type = NLA_UINT, }, [OVPN_A_PEER_LINK_TX_PACKETS] = { .type = NLA_UINT, }, [OVPN_A_PEER_TX_ID] = NLA_POLICY_FULL_RANGE(NLA_U32, &ovpn_a_peer_tx_id_range), + [OVPN_A_PEER_ESTATS] = NLA_POLICY_NESTED(ovpn_peer_estats_nl_policy), }; const struct nla_policy ovpn_peer_del_input_nl_policy[OVPN_A_PEER_ID + 1] = { [OVPN_A_PEER_ID] = NLA_POLICY_FULL_RANGE(NLA_U32, &ovpn_a_peer_id_range), }; +const struct nla_policy ovpn_peer_estats_nl_policy[OVPN_A_PEER_ESTATS_FLOAT_COUNT + 1] = { + [OVPN_A_PEER_ESTATS_RX_DECRYPT_ERRORS] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_RX_REPLAY_ERRORS] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_RX_UNKNOWN_KEYID] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_RX_UNSUPPORTED_PROTO] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_RX_RPF_ERRORS] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_TX_ENCRYPT_ERRORS] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_TX_IV_EXHAUSTED] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_TX_NO_KEY] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_TX_NO_TRANSPORT] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_TX_GSO_ERRORS] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_KEEPALIVE_RX] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_KEEPALIVE_TX] = { .type = NLA_UINT, }, + [OVPN_A_PEER_ESTATS_FLOAT_COUNT] = { .type = NLA_UINT, }, +}; + const struct nla_policy ovpn_peer_new_input_nl_policy[OVPN_A_PEER_TX_ID + 1] = { [OVPN_A_PEER_ID] = NLA_POLICY_FULL_RANGE(NLA_U32, &ovpn_a_peer_id_range), [OVPN_A_PEER_REMOTE_IPV4] = { .type = NLA_BE32, }, diff --git a/drivers/net/ovpn/netlink-gen.h b/drivers/net/ovpn/netlink-gen.h index 67cd85f86173..197e4a992d69 100644 --- a/drivers/net/ovpn/netlink-gen.h +++ b/drivers/net/ovpn/netlink-gen.h @@ -18,8 +18,9 @@ extern const struct nla_policy ovpn_keyconf_del_input_nl_policy[OVPN_A_KEYCONF_S extern const struct nla_policy ovpn_keyconf_get_nl_policy[OVPN_A_KEYCONF_CIPHER_ALG + 1]; extern const struct nla_policy ovpn_keyconf_swap_input_nl_policy[OVPN_A_KEYCONF_PEER_ID + 1]; extern const struct nla_policy ovpn_keydir_nl_policy[OVPN_A_KEYDIR_NONCE_TAIL + 1]; -extern const struct nla_policy ovpn_peer_nl_policy[OVPN_A_PEER_TX_ID + 1]; +extern const struct nla_policy ovpn_peer_nl_policy[OVPN_A_PEER_ESTATS + 1]; extern const struct nla_policy ovpn_peer_del_input_nl_policy[OVPN_A_PEER_ID + 1]; +extern const struct nla_policy ovpn_peer_estats_nl_policy[OVPN_A_PEER_ESTATS_FLOAT_COUNT + 1]; extern const struct nla_policy ovpn_peer_new_input_nl_policy[OVPN_A_PEER_TX_ID + 1]; extern const struct nla_policy ovpn_peer_set_input_nl_policy[OVPN_A_PEER_TX_ID + 1]; diff --git a/drivers/net/ovpn/netlink.c b/drivers/net/ovpn/netlink.c index 4dad85294198..9e03b4cefcee 100644 --- a/drivers/net/ovpn/netlink.c +++ b/drivers/net/ovpn/netlink.c @@ -551,9 +551,9 @@ static int ovpn_nl_send_peer(struct sk_buff *skb, const struct genl_info *info, int flags) { const struct ovpn_bind *bind; + struct nlattr *attr, *estats; struct ovpn_socket *sock; int ret = -EMSGSIZE; - struct nlattr *attr; __be16 local_port; void *hdr; int id; @@ -654,6 +654,41 @@ static int ovpn_nl_send_peer(struct sk_buff *skb, const struct genl_info *info, atomic64_read(&peer->link_stats.tx.packets))) goto err; + estats = nla_nest_start(skb, OVPN_A_PEER_ESTATS); + if (!estats) + goto err; + + if (/* drop/event counters */ + nla_put_uint(skb, OVPN_A_PEER_ESTATS_RX_DECRYPT_ERRORS, + atomic64_read(&peer->estats.rx_decrypt_errors)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_RX_REPLAY_ERRORS, + atomic64_read(&peer->estats.rx_replay_errors)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_RX_UNKNOWN_KEYID, + atomic64_read(&peer->estats.rx_unknown_keyid)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_RX_UNSUPPORTED_PROTO, + atomic64_read(&peer->estats.rx_unsupported_proto)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_RX_RPF_ERRORS, + atomic64_read(&peer->estats.rx_rpf_errors)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_TX_ENCRYPT_ERRORS, + atomic64_read(&peer->estats.tx_encrypt_errors)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_TX_IV_EXHAUSTED, + atomic64_read(&peer->estats.tx_iv_exhausted)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_TX_NO_KEY, + atomic64_read(&peer->estats.tx_no_key)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_TX_NO_TRANSPORT, + atomic64_read(&peer->estats.tx_no_transport)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_TX_GSO_ERRORS, + atomic64_read(&peer->estats.tx_gso_errors)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_KEEPALIVE_RX, + atomic64_read(&peer->estats.keepalive_rx)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_KEEPALIVE_TX, + atomic64_read(&peer->estats.keepalive_tx)) || + nla_put_uint(skb, OVPN_A_PEER_ESTATS_FLOAT_COUNT, + atomic64_read(&peer->estats.floats))) + goto err; + + nla_nest_end(skb, estats); + nla_nest_end(skb, attr); genlmsg_end(skb, hdr); diff --git a/drivers/net/ovpn/peer.c b/drivers/net/ovpn/peer.c index b0519f9840d8..6235c3d8414a 100644 --- a/drivers/net/ovpn/peer.c +++ b/drivers/net/ovpn/peer.c @@ -77,6 +77,10 @@ static void ovpn_peer_keepalive_send(struct work_struct *work) struct ovpn_peer *peer = container_of(work, struct ovpn_peer, keepalive_work); + /* count attempted keepalives: if the TX path fails afterwards, + * keepalive_tx will include a transmission that was not sent + */ + atomic64_inc(&peer->estats.keepalive_tx); local_bh_disable(); ovpn_xmit_special(peer, ovpn_keepalive_message, sizeof(ovpn_keepalive_message)); @@ -309,6 +313,7 @@ void ovpn_peer_endpoints_update(struct ovpn_peer *peer, struct sk_buff *skb) spin_unlock_bh(&peer->lock); + atomic64_inc(&peer->estats.floats); ovpn_nl_peer_float_notify(peer, &ss); /* rehashing is required only in MP mode as P2P has one peer diff --git a/drivers/net/ovpn/peer.h b/drivers/net/ovpn/peer.h index dfa5c0037e02..5667bad91c31 100644 --- a/drivers/net/ovpn/peer.h +++ b/drivers/net/ovpn/peer.h @@ -60,6 +60,7 @@ * @rcu: used to free peer in an RCU safe way * @release_entry: entry for the socket release list * @keepalive_work: used to schedule keepalive sending + * @estats: per-peer drop/event counters */ struct ovpn_peer { struct ovpn_priv *ovpn; @@ -114,6 +115,7 @@ struct ovpn_peer { struct rcu_head rcu; struct llist_node release_entry; struct work_struct keepalive_work; + struct ovpn_peer_estats estats; }; /** diff --git a/drivers/net/ovpn/stats.h b/drivers/net/ovpn/stats.h index 3a45b97c0056..8b900e0c1121 100644 --- a/drivers/net/ovpn/stats.h +++ b/drivers/net/ovpn/stats.h @@ -25,6 +25,39 @@ struct ovpn_peer_stats { struct ovpn_peer_stat tx; }; +/** + * struct ovpn_peer_estats - per-peer drop/event counters + * @rx_decrypt_errors: packets dropped due to decryption/auth failure + * @rx_replay_errors: packets dropped by the replay protection check + * @rx_unknown_keyid: packets dropped due to unknown key ID + * @rx_unsupported_proto: packets dropped due to unsupported or malformed + * inner protocol + * @rx_rpf_errors: packets dropped by the reverse path filtering check + * @tx_encrypt_errors: packets dropped due to encryption failure + * @tx_iv_exhausted: packets dropped due to packet ID (IV) exhaustion + * @tx_no_key: packets dropped due to missing primary key + * @tx_no_transport: packets dropped due to missing transport socket + * @tx_gso_errors: packets dropped due to GSO segmentation failure + * @keepalive_rx: keepalive packets received from this peer + * @keepalive_tx: keepalive packets sent to this peer + * @floats: number of times the peer endpoint floated + */ +struct ovpn_peer_estats { + atomic64_t rx_decrypt_errors; + atomic64_t rx_replay_errors; + atomic64_t rx_unknown_keyid; + atomic64_t rx_unsupported_proto; + atomic64_t rx_rpf_errors; + atomic64_t tx_encrypt_errors; + atomic64_t tx_iv_exhausted; + atomic64_t tx_no_key; + atomic64_t tx_no_transport; + atomic64_t tx_gso_errors; + atomic64_t keepalive_rx; + atomic64_t keepalive_tx; + atomic64_t floats; +}; + void ovpn_peer_stats_init(struct ovpn_peer_stats *ps); static inline void ovpn_peer_stats_increment(struct ovpn_peer_stat *stat, diff --git a/include/uapi/linux/ovpn.h b/include/uapi/linux/ovpn.h index 06690090a1a9..e5ed635c0373 100644 --- a/include/uapi/linux/ovpn.h +++ b/include/uapi/linux/ovpn.h @@ -56,11 +56,31 @@ enum { OVPN_A_PEER_LINK_RX_PACKETS, OVPN_A_PEER_LINK_TX_PACKETS, OVPN_A_PEER_TX_ID, + OVPN_A_PEER_ESTATS, __OVPN_A_PEER_MAX, OVPN_A_PEER_MAX = (__OVPN_A_PEER_MAX - 1) }; +enum { + OVPN_A_PEER_ESTATS_RX_DECRYPT_ERRORS = 1, + OVPN_A_PEER_ESTATS_RX_REPLAY_ERRORS, + OVPN_A_PEER_ESTATS_RX_UNKNOWN_KEYID, + OVPN_A_PEER_ESTATS_RX_UNSUPPORTED_PROTO, + OVPN_A_PEER_ESTATS_RX_RPF_ERRORS, + OVPN_A_PEER_ESTATS_TX_ENCRYPT_ERRORS, + OVPN_A_PEER_ESTATS_TX_IV_EXHAUSTED, + OVPN_A_PEER_ESTATS_TX_NO_KEY, + OVPN_A_PEER_ESTATS_TX_NO_TRANSPORT, + OVPN_A_PEER_ESTATS_TX_GSO_ERRORS, + OVPN_A_PEER_ESTATS_KEEPALIVE_RX, + OVPN_A_PEER_ESTATS_KEEPALIVE_TX, + OVPN_A_PEER_ESTATS_FLOAT_COUNT, + + __OVPN_A_PEER_ESTATS_MAX, + OVPN_A_PEER_ESTATS_MAX = (__OVPN_A_PEER_ESTATS_MAX - 1) +}; + enum { OVPN_A_KEYCONF_PEER_ID = 1, OVPN_A_KEYCONF_SLOT, diff --git a/tools/testing/selftests/net/ovpn/ovpn-cli.c b/tools/testing/selftests/net/ovpn/ovpn-cli.c index f4effa7580c0..ecac71db769a 100644 --- a/tools/testing/selftests/net/ovpn/ovpn-cli.c +++ b/tools/testing/selftests/net/ovpn/ovpn-cli.c @@ -893,6 +893,66 @@ static int ovpn_handle_peer(struct nl_msg *msg, void (*arg)__always_unused) fprintf(stderr, "\tLINK TX packets: %" PRIu64 "\n", ovpn_nla_get_uint(pattrs[OVPN_A_PEER_LINK_TX_PACKETS])); + if (pattrs[OVPN_A_PEER_ESTATS]) { + struct nlattr *eattrs[OVPN_A_PEER_ESTATS_MAX + 1]; + + nla_parse(eattrs, OVPN_A_PEER_ESTATS_MAX, + nla_data(pattrs[OVPN_A_PEER_ESTATS]), + nla_len(pattrs[OVPN_A_PEER_ESTATS]), NULL); + + if (eattrs[OVPN_A_PEER_ESTATS_RX_DECRYPT_ERRORS]) + fprintf(stderr, "\tRX decrypt errors: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_RX_DECRYPT_ERRORS])); + + if (eattrs[OVPN_A_PEER_ESTATS_RX_REPLAY_ERRORS]) + fprintf(stderr, "\tRX replay errors: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_RX_REPLAY_ERRORS])); + + if (eattrs[OVPN_A_PEER_ESTATS_RX_UNKNOWN_KEYID]) + fprintf(stderr, "\tRX unknown key-id: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_RX_UNKNOWN_KEYID])); + + if (eattrs[OVPN_A_PEER_ESTATS_RX_UNSUPPORTED_PROTO]) + fprintf(stderr, "\tRX unsupported/malformed proto: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_RX_UNSUPPORTED_PROTO])); + + if (eattrs[OVPN_A_PEER_ESTATS_RX_RPF_ERRORS]) + fprintf(stderr, "\tRX RPF errors: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_RX_RPF_ERRORS])); + + if (eattrs[OVPN_A_PEER_ESTATS_TX_ENCRYPT_ERRORS]) + fprintf(stderr, "\tTX encrypt errors: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_TX_ENCRYPT_ERRORS])); + + if (eattrs[OVPN_A_PEER_ESTATS_TX_IV_EXHAUSTED]) + fprintf(stderr, "\tTX IV exhausted: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_TX_IV_EXHAUSTED])); + + if (eattrs[OVPN_A_PEER_ESTATS_TX_NO_KEY]) + fprintf(stderr, "\tTX no key: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_TX_NO_KEY])); + + if (eattrs[OVPN_A_PEER_ESTATS_TX_NO_TRANSPORT]) + fprintf(stderr, "\tTX no transport: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_TX_NO_TRANSPORT])); + + if (eattrs[OVPN_A_PEER_ESTATS_TX_GSO_ERRORS]) + fprintf(stderr, "\tTX GSO errors: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_TX_GSO_ERRORS])); + + if (eattrs[OVPN_A_PEER_ESTATS_KEEPALIVE_RX]) + fprintf(stderr, "\tKeepalive RX: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_KEEPALIVE_RX])); + + if (eattrs[OVPN_A_PEER_ESTATS_KEEPALIVE_TX]) + fprintf(stderr, "\tKeepalive TX: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_KEEPALIVE_TX])); + + if (eattrs[OVPN_A_PEER_ESTATS_FLOAT_COUNT]) + fprintf(stderr, "\tFloat count: %" PRIu64 "\n", + ovpn_nla_get_uint(eattrs[OVPN_A_PEER_ESTATS_FLOAT_COUNT])); + } + return NL_SKIP; }