summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--src/plugins/nat/CMakeLists.txt1
-rw-r--r--src/plugins/nat/dslite_in2out.c14
-rwxr-xr-xsrc/plugins/nat/in2out.c11
-rw-r--r--src/plugins/nat/in2out_ed.c16
-rwxr-xr-xsrc/plugins/nat/nat.c15
-rw-r--r--src/plugins/nat/nat.h3
-rw-r--r--src/plugins/nat/nat64_db.c8
-rw-r--r--src/plugins/nat/nat_syslog.c290
-rw-r--r--src/plugins/nat/nat_syslog.h75
-rwxr-xr-xsrc/plugins/nat/out2in.c11
-rw-r--r--src/plugins/nat/out2in_ed.c21
-rw-r--r--test/test_nat.py174
12 files changed, 636 insertions, 3 deletions
diff --git a/src/plugins/nat/CMakeLists.txt b/src/plugins/nat/CMakeLists.txt
index 76662f96cf3..134aafed509 100644
--- a/src/plugins/nat/CMakeLists.txt
+++ b/src/plugins/nat/CMakeLists.txt
@@ -47,6 +47,7 @@ add_vpp_plugin(nat
nat66_out2in.c
nat_affinity.c
nat_format.c
+ nat_syslog.c
API_FILES
nat.api
diff --git a/src/plugins/nat/dslite_in2out.c b/src/plugins/nat/dslite_in2out.c
index e7a3028f28a..5c1de19b8b2 100644
--- a/src/plugins/nat/dslite_in2out.c
+++ b/src/plugins/nat/dslite_in2out.c
@@ -14,6 +14,7 @@
*/
#include <nat/dslite.h>
#include <nat/nat_inlines.h>
+#include <nat/nat_syslog.h>
vlib_node_registration_t dslite_in2out_node;
vlib_node_registration_t dslite_in2out_slowpath_node;
@@ -45,6 +46,7 @@ slow_path (dslite_main_t * dm, dslite_session_key_t * in2out_key,
u32 oldest_index;
dslite_session_t *s;
snat_session_key_t out2in_key;
+ u32 b4_index;
out2in_key.protocol = in2out_key->proto;
out2in_key.fib_index = 0;
@@ -66,12 +68,13 @@ slow_path (dslite_main_t * dm, dslite_session_key_t * in2out_key,
clib_dlist_init (dm->per_thread_data[thread_index].list_pool,
b4->sessions_per_b4_list_head_index);
- b4_kv.value = b4 - dm->per_thread_data[thread_index].b4s;
+ b4_index = b4_kv.value = b4 - dm->per_thread_data[thread_index].b4s;
clib_bihash_add_del_16_8 (&dm->per_thread_data[thread_index].b4_hash,
&b4_kv, 1);
}
else
{
+ b4_index = b4_value.value;
b4 =
pool_elt_at_index (dm->per_thread_data[thread_index].b4s,
b4_value.value);
@@ -104,6 +107,11 @@ slow_path (dslite_main_t * dm, dslite_session_key_t * in2out_key,
snat_free_outside_address_and_port (dm->addr_pool, thread_index,
&s->out2in);
+ nat_syslog_dslite_apmdel (b4_index, &s->in2out.softwire_id,
+ &s->in2out.addr, s->in2out.port,
+ &s->out2in.addr, s->out2in.port,
+ s->in2out.proto);
+
if (snat_alloc_outside_address_and_port
(dm->addr_pool, 0, thread_index, &out2in_key,
dm->port_per_thread, thread_index))
@@ -147,6 +155,10 @@ slow_path (dslite_main_t * dm, dslite_session_key_t * in2out_key,
clib_bihash_add_del_8_8 (&dm->per_thread_data[thread_index].out2in,
&out2in_kv, 1);
+ nat_syslog_dslite_apmadd (b4_index, &s->in2out.softwire_id, &s->in2out.addr,
+ s->in2out.port, &s->out2in.addr, s->out2in.port,
+ s->in2out.proto);
+
return next;
}
diff --git a/src/plugins/nat/in2out.c b/src/plugins/nat/in2out.c
index d4432d98016..786d82147a7 100755
--- a/src/plugins/nat/in2out.c
+++ b/src/plugins/nat/in2out.c
@@ -28,6 +28,7 @@
#include <nat/nat_ipfix_logging.h>
#include <nat/nat_reass.h>
#include <nat/nat_inlines.h>
+#include <nat/nat_syslog.h>
#include <vppinfra/hash.h>
#include <vppinfra/error.h>
@@ -216,6 +217,11 @@ nat44_i2o_is_idle_session_cb (clib_bihash_kv_8_8_t * kv, void *arg)
s->out2in.port,
s->in2out.fib_index);
+ nat_syslog_nat44_apmdel (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->out2in.addr, s->out2in.port,
+ s->in2out.protocol);
+
if (!snat_is_session_static (s))
snat_free_outside_address_and_port (sm->addresses, ctx->thread_index,
&s->out2in);
@@ -365,6 +371,11 @@ slow_path (snat_main_t * sm, vlib_buffer_t * b0,
s->in2out.protocol,
s->in2out.port,
s->out2in.port, s->in2out.fib_index);
+
+ nat_syslog_nat44_apmadd (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port, &s->out2in.addr,
+ s->out2in.port, s->in2out.protocol);
+
return next0;
}
diff --git a/src/plugins/nat/in2out_ed.c b/src/plugins/nat/in2out_ed.c
index c42d4e79f9e..ab253e8206b 100644
--- a/src/plugins/nat/in2out_ed.c
+++ b/src/plugins/nat/in2out_ed.c
@@ -28,6 +28,7 @@
#include <nat/nat_ipfix_logging.h>
#include <nat/nat_reass.h>
#include <nat/nat_inlines.h>
+#include <nat/nat_syslog.h>
#define foreach_nat_in2out_ed_error \
_(UNSUPPORTED_PROTOCOL, "Unsupported protocol") \
@@ -197,6 +198,13 @@ nat44_i2o_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg)
s->out2in.port,
s->in2out.fib_index);
+ nat_syslog_nat44_sdel (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->ext_host_nat_addr, s->ext_host_nat_port,
+ &s->out2in.addr, s->out2in.port,
+ &s->ext_host_addr, s->ext_host_port,
+ s->in2out.protocol, is_twice_nat_session (s));
+
if (is_twice_nat_session (s))
{
for (i = 0; i < vec_len (sm->twice_nat_addresses); i++)
@@ -409,6 +417,14 @@ slow_path_ed (snat_main_t * sm,
s->in2out.protocol,
s->in2out.port,
s->out2in.port, s->in2out.fib_index);
+
+ nat_syslog_nat44_sadd (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->ext_host_nat_addr, s->ext_host_nat_port,
+ &s->out2in.addr, s->out2in.port,
+ &s->ext_host_addr, s->ext_host_port,
+ s->in2out.protocol, 0);
+
return next;
}
diff --git a/src/plugins/nat/nat.c b/src/plugins/nat/nat.c
index b7ade881c3f..6bfea3c4162 100755
--- a/src/plugins/nat/nat.c
+++ b/src/plugins/nat/nat.c
@@ -29,6 +29,7 @@
#include <nat/nat_reass.h>
#include <nat/nat_inlines.h>
#include <nat/nat_affinity.h>
+#include <nat/nat_syslog.h>
#include <vnet/fib/fib_table.h>
#include <vnet/fib/ip4_fib.h>
@@ -236,6 +237,13 @@ nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index)
ed_kv.key[1] = ed_key.as_u64[1];
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &ed_kv, 0))
nat_log_warn ("in2out_ed key del failed");
+
+ nat_syslog_nat44_sdel (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->ext_host_nat_addr, s->ext_host_nat_port,
+ &s->out2in.addr, s->out2in.port,
+ &s->ext_host_addr, s->ext_host_port,
+ s->in2out.protocol, is_twice_nat_session (s));
}
else
{
@@ -245,6 +253,11 @@ nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index)
kv.key = s->out2in.as_u64;
if (clib_bihash_add_del_8_8 (&tsm->out2in, &kv, 0))
nat_log_warn ("out2in key del failed");
+
+ nat_syslog_nat44_apmdel (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->out2in.addr, s->out2in.port,
+ s->in2out.protocol);
}
if (snat_is_unk_proto_session (s))
@@ -382,6 +395,8 @@ nat_session_alloc_or_recycle (snat_main_t * sm, snat_user_t * u,
clib_dlist_addtail (tsm->list_pool,
s->per_user_list_head_index,
per_user_translation_list_elt - tsm->list_pool);
+
+ s->user_index = u - tsm->users;
}
return s;
diff --git a/src/plugins/nat/nat.h b/src/plugins/nat/nat.h
index 3162e41b696..3ce83ea2602 100644
--- a/src/plugins/nat/nat.h
+++ b/src/plugins/nat/nat.h
@@ -222,6 +222,9 @@ typedef CLIB_PACKED(struct
u8 state;
u32 i2o_fin_seq;
u32 o2i_fin_seq;
+
+ /* user index */
+ u32 user_index;
}) snat_session_t;
/* *INDENT-ON* */
diff --git a/src/plugins/nat/nat64_db.c b/src/plugins/nat/nat64_db.c
index bb327a57152..ca8358ef8a2 100644
--- a/src/plugins/nat/nat64_db.c
+++ b/src/plugins/nat/nat64_db.c
@@ -19,6 +19,7 @@
#include <nat/nat64_db.h>
#include <nat/nat_ipfix_logging.h>
#include <nat/nat_inlines.h>
+#include <nat/nat_syslog.h>
#include <vnet/fib/fib_table.h>
int
@@ -456,7 +457,9 @@ nat64_db_st_entry_create (nat64_db_t * db, nat64_db_bib_entry_t * bibe,
&ste->in_r_addr, &ste->out_r_addr,
ste->r_port, ste->r_port, fib->ft_table_id,
1);
-
+ nat_syslog_nat64_sadd (bibe->fib_index, &bibe->in_addr, bibe->in_port,
+ &bibe->out_addr, bibe->out_port, &ste->out_r_addr,
+ ste->r_port, bibe->proto);
return ste;
}
@@ -528,6 +531,9 @@ nat64_db_st_entry_free (nat64_db_t * db, nat64_db_st_entry_t * ste)
&ste->in_r_addr, &ste->out_r_addr,
ste->r_port, ste->r_port, fib->ft_table_id,
0);
+ nat_syslog_nat64_sdel (bibe->fib_index, &bibe->in_addr, bibe->in_port,
+ &bibe->out_addr, bibe->out_port, &ste->out_r_addr,
+ ste->r_port, bibe->proto);
/* delete from pool */
pool_put (st, ste);
diff --git a/src/plugins/nat/nat_syslog.c b/src/plugins/nat/nat_syslog.c
new file mode 100644
index 00000000000..07fe2ea5808
--- /dev/null
+++ b/src/plugins/nat/nat_syslog.c
@@ -0,0 +1,290 @@
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @file
+ * @brief NAT syslog logging
+ */
+
+#include <vnet/fib/fib_table.h>
+#include <vnet/ip/ip.h>
+#include <vnet/syslog/syslog.h>
+
+#include <nat/nat_syslog.h>
+#include <nat/nat_inlines.h>
+
+
+#define NAT_FACILITY SYSLOG_FACILITY_LOCAL0
+
+#define NAT_APPNAME "NAT"
+
+#define SADD_SDEL_SEVERITY SYSLOG_SEVERITY_INFORMATIONAL
+#define APMADD_APMDEL_SEVERITY SYSLOG_SEVERITY_INFORMATIONAL
+
+#define SADD_MSGID "SADD"
+#define SDEL_MSGID "SDEL"
+#define APMADD_MSGID "APMADD"
+#define APMDEL_MSGID "APMDEL"
+
+#define NSESS_SDID "nsess"
+#define NAPMAP_SDID "napmap"
+
+#define SSUBIX_SDPARAM_NAME "SSUBIX"
+#define SVLAN_SDPARAM_NAME "SVLAN"
+#define IATYP_SDPARAM_NAME "IATYP"
+#define ISADDR_SDPARAM_NAME "ISADDR"
+#define ISPORT_SDPARAM_NAME "ISPORT"
+#define IDADDR_SDPARAM_NAME "IDADDR"
+#define IDPORT_SDPARAM_NAME "IDPORT"
+#define XATYP_SDPARAM_NAME "XATYP"
+#define XSADDR_SDPARAM_NAME "XSADDR"
+#define XSPORT_SDPARAM_NAME "XSPORT"
+#define XDADDR_SDPARAM_NAME "XDADDR"
+#define XDPORT_SDPARAM_NAME "XDPORT"
+#define PROTO_SDPARAM_NAME "PROTO"
+#define SV6ENC_SDPARAM_NAME "SV6ENC"
+
+#define IATYP_IPV4 "IPv4"
+#define IATYP_IPV6 "IPv6"
+
+static inline void
+nat_syslog_nat44_apmap (u32 ssubix, u32 sfibix, ip4_address_t * isaddr,
+ u16 isport, ip4_address_t * xsaddr, u16 xsport,
+ snat_protocol_t proto, u8 is_add,
+ ip6_address_t * sv6enc)
+{
+ syslog_msg_t syslog_msg;
+ fib_table_t *fib;
+
+ if (!syslog_is_enabled ())
+ return;
+
+ if (syslog_severity_filter_block (APMADD_APMDEL_SEVERITY))
+ return;
+
+ syslog_msg_init (&syslog_msg, NAT_FACILITY, APMADD_APMDEL_SEVERITY,
+ NAT_APPNAME, is_add ? APMADD_MSGID : APMDEL_MSGID);
+
+ syslog_msg_sd_init (&syslog_msg, NAPMAP_SDID);
+ syslog_msg_add_sd_param (&syslog_msg, SSUBIX_SDPARAM_NAME, "%d", ssubix);
+ if (sv6enc)
+ {
+ syslog_msg_add_sd_param (&syslog_msg, SV6ENC_SDPARAM_NAME, "%U",
+ format_ip6_address, sv6enc);
+ }
+ else
+ {
+ fib = fib_table_get (sfibix, FIB_PROTOCOL_IP4);
+ syslog_msg_add_sd_param (&syslog_msg, SVLAN_SDPARAM_NAME, "%d",
+ fib->ft_table_id);
+ }
+ syslog_msg_add_sd_param (&syslog_msg, IATYP_SDPARAM_NAME, IATYP_IPV4);
+ syslog_msg_add_sd_param (&syslog_msg, ISADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, isaddr);
+ syslog_msg_add_sd_param (&syslog_msg, ISPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (isport));
+ syslog_msg_add_sd_param (&syslog_msg, XATYP_SDPARAM_NAME, IATYP_IPV4);
+ syslog_msg_add_sd_param (&syslog_msg, XSADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, xsaddr);
+ syslog_msg_add_sd_param (&syslog_msg, XSPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (xsport));
+ syslog_msg_add_sd_param (&syslog_msg, PROTO_SDPARAM_NAME, "%d",
+ snat_proto_to_ip_proto (proto));
+
+ syslog_msg_send (&syslog_msg);
+}
+
+void
+nat_syslog_nat44_apmadd (u32 ssubix, u32 sfibix, ip4_address_t * isaddr,
+ u16 isport, ip4_address_t * xsaddr, u16 xsport,
+ snat_protocol_t proto)
+{
+ nat_syslog_nat44_apmap (ssubix, sfibix, isaddr, isport, xsaddr, xsport,
+ proto, 1, 0);
+}
+
+void
+nat_syslog_nat44_apmdel (u32 ssubix, u32 sfibix, ip4_address_t * isaddr,
+ u16 isport, ip4_address_t * xsaddr, u16 xsport,
+ snat_protocol_t proto)
+{
+ nat_syslog_nat44_apmap (ssubix, sfibix, isaddr, isport, xsaddr, xsport,
+ proto, 0, 0);
+}
+
+void
+nat_syslog_dslite_apmadd (u32 ssubix, ip6_address_t * sv6enc,
+ ip4_address_t * isaddr, u16 isport,
+ ip4_address_t * xsaddr, u16 xsport,
+ snat_protocol_t proto)
+{
+ nat_syslog_nat44_apmap (ssubix, 0, isaddr, isport, xsaddr, xsport,
+ proto, 1, sv6enc);
+}
+
+void
+nat_syslog_dslite_apmdel (u32 ssubix, ip6_address_t * sv6enc,
+ ip4_address_t * isaddr, u16 isport,
+ ip4_address_t * xsaddr, u16 xsport,
+ snat_protocol_t proto)
+{
+ nat_syslog_nat44_apmap (ssubix, 0, isaddr, isport, xsaddr, xsport,
+ proto, 0, sv6enc);
+}
+
+static inline void
+nat_syslog_nat44_sess (u32 ssubix, u32 sfibix, ip4_address_t * isaddr,
+ u16 isport, ip4_address_t * xsaddr, u16 xsport,
+ ip4_address_t * idaddr, u16 idport,
+ ip4_address_t * xdaddr, u16 xdport,
+ snat_protocol_t proto, u8 is_add, u8 is_twicenat)
+{
+ syslog_msg_t syslog_msg;
+ fib_table_t *fib;
+
+ if (!syslog_is_enabled ())
+ return;
+
+ if (syslog_severity_filter_block (SADD_SDEL_SEVERITY))
+ return;
+
+ fib = fib_table_get (sfibix, FIB_PROTOCOL_IP4);
+
+ syslog_msg_init (&syslog_msg, NAT_FACILITY, SADD_SDEL_SEVERITY, NAT_APPNAME,
+ is_add ? SADD_MSGID : SDEL_MSGID);
+
+ syslog_msg_sd_init (&syslog_msg, NSESS_SDID);
+ syslog_msg_add_sd_param (&syslog_msg, SSUBIX_SDPARAM_NAME, "%d", ssubix);
+ syslog_msg_add_sd_param (&syslog_msg, SVLAN_SDPARAM_NAME, "%d",
+ fib->ft_table_id);
+ syslog_msg_add_sd_param (&syslog_msg, IATYP_SDPARAM_NAME, IATYP_IPV4);
+ syslog_msg_add_sd_param (&syslog_msg, ISADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, isaddr);
+ syslog_msg_add_sd_param (&syslog_msg, ISPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (isport));
+ syslog_msg_add_sd_param (&syslog_msg, XATYP_SDPARAM_NAME, IATYP_IPV4);
+ syslog_msg_add_sd_param (&syslog_msg, XSADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, xsaddr);
+ syslog_msg_add_sd_param (&syslog_msg, XSPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (xsport));
+ syslog_msg_add_sd_param (&syslog_msg, PROTO_SDPARAM_NAME, "%d",
+ snat_proto_to_ip_proto (proto));
+ syslog_msg_add_sd_param (&syslog_msg, XDADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, xdaddr);
+ syslog_msg_add_sd_param (&syslog_msg, XDPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (xdport));
+ if (is_twicenat)
+ {
+ syslog_msg_add_sd_param (&syslog_msg, IDADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, idaddr);
+ syslog_msg_add_sd_param (&syslog_msg, IDPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (idport));
+ }
+
+ syslog_msg_send (&syslog_msg);
+}
+
+void
+nat_syslog_nat44_sadd (u32 ssubix, u32 sfibix, ip4_address_t * isaddr,
+ u16 isport, ip4_address_t * idaddr, u16 idport,
+ ip4_address_t * xsaddr, u16 xsport,
+ ip4_address_t * xdaddr, u16 xdport,
+ snat_protocol_t proto, u8 is_twicenat)
+{
+ nat_syslog_nat44_sess (ssubix, sfibix, isaddr, isport, xsaddr, xsport,
+ idaddr, idport, xdaddr, xdport, proto, 1,
+ is_twicenat);
+}
+
+void
+nat_syslog_nat44_sdel (u32 ssubix, u32 sfibix, ip4_address_t * isaddr,
+ u16 isport, ip4_address_t * idaddr, u16 idport,
+ ip4_address_t * xsaddr, u16 xsport,
+ ip4_address_t * xdaddr, u16 xdport,
+ snat_protocol_t proto, u8 is_twicenat)
+{
+ nat_syslog_nat44_sess (ssubix, sfibix, isaddr, isport, xsaddr, xsport,
+ idaddr, idport, xdaddr, xdport, proto, 0,
+ is_twicenat);
+}
+
+static inline void
+nat_syslog_nat64_sess (u32 sfibix, ip6_address_t * isaddr, u16 isport,
+ ip4_address_t * xsaddr, u16 xsport,
+ ip4_address_t * xdaddr, u16 xdport,
+ snat_protocol_t proto, u8 is_add)
+{
+ syslog_msg_t syslog_msg;
+ fib_table_t *fib;
+
+ if (!syslog_is_enabled ())
+ return;
+
+ if (syslog_severity_filter_block (SADD_SDEL_SEVERITY))
+ return;
+
+ fib = fib_table_get (sfibix, FIB_PROTOCOL_IP6);
+
+ syslog_msg_init (&syslog_msg, NAT_FACILITY, SADD_SDEL_SEVERITY, NAT_APPNAME,
+ is_add ? SADD_MSGID : SDEL_MSGID);
+
+ syslog_msg_sd_init (&syslog_msg, NSESS_SDID);
+ syslog_msg_add_sd_param (&syslog_msg, SVLAN_SDPARAM_NAME, "%d",
+ fib->ft_table_id);
+ syslog_msg_add_sd_param (&syslog_msg, IATYP_SDPARAM_NAME, IATYP_IPV6);
+ syslog_msg_add_sd_param (&syslog_msg, ISADDR_SDPARAM_NAME, "%U",
+ format_ip6_address, isaddr);
+ syslog_msg_add_sd_param (&syslog_msg, ISPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (isport));
+ syslog_msg_add_sd_param (&syslog_msg, XATYP_SDPARAM_NAME, IATYP_IPV4);
+ syslog_msg_add_sd_param (&syslog_msg, XSADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, xsaddr);
+ syslog_msg_add_sd_param (&syslog_msg, XSPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (xsport));
+ syslog_msg_add_sd_param (&syslog_msg, PROTO_SDPARAM_NAME, "%d", proto);
+ syslog_msg_add_sd_param (&syslog_msg, XDADDR_SDPARAM_NAME, "%U",
+ format_ip4_address, xdaddr);
+ syslog_msg_add_sd_param (&syslog_msg, XDPORT_SDPARAM_NAME, "%d",
+ clib_net_to_host_u16 (xdport));
+
+ syslog_msg_send (&syslog_msg);
+}
+
+void
+nat_syslog_nat64_sadd (u32 sfibix, ip6_address_t * isaddr, u16 isport,
+ ip4_address_t * xsaddr, u16 xsport,
+ ip4_address_t * xdaddr, u16 xdport,
+ snat_protocol_t proto)
+{
+ nat_syslog_nat64_sess (sfibix, isaddr, isport, xsaddr, xsport, xdaddr,
+ xdport, proto, 1);
+}
+
+void
+nat_syslog_nat64_sdel (u32 sfibix, ip6_address_t * isaddr, u16 isport,
+ ip4_address_t * xsaddr, u16 xsport,
+ ip4_address_t * xdaddr, u16 xdport,
+ snat_protocol_t proto)
+{
+ nat_syslog_nat64_sess (sfibix, isaddr, isport, xsaddr, xsport, xdaddr,
+ xdport, proto, 0);
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/nat/nat_syslog.h b/src/plugins/nat/nat_syslog.h
new file mode 100644
index 00000000000..15a891fd0c0
--- /dev/null
+++ b/src/plugins/nat/nat_syslog.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @file
+ * @brief NAT syslog logging
+ */
+
+#ifndef __included_nat_syslog_h__
+#define __included_nat_syslog_h__
+
+#include <nat/nat.h>
+
+void nat_syslog_nat44_apmadd (u32 ssubix, u32 sfibix, ip4_address_t * isaddr,
+ u16 isport, ip4_address_t * xsaddr, u16 xsport,
+ snat_protocol_t proto);
+
+void nat_syslog_nat44_apmdel (u32 ssubix, u32 sfibix, ip4_address_t * isaddr,
+ u16 isport, ip4_address_t * xsaddr, u16 xsport,
+ snat_protocol_t proto);
+
+void
+nat_syslog_dslite_apmadd (u32 ssubix, ip6_address_t * sv6enc,
+ ip4_address_t * isaddr, u16 isport,
+ ip4_address_t * xsaddr, u16 xsport,
+ snat_protocol_t proto);
+
+void
+nat_syslog_dslite_apmdel (u32 ssubix, ip6_address_t * sv6enc,
+ ip4_address_t * isaddr, u16 isport,
+ ip4_address_t * xsaddr, u16 xsport,
+ snat_protocol_t proto);
+
+void nat_syslog_nat44_sadd (u32 ssubix, u32 sfibix, ip4_address_t * isaddr,
+ u16 isport, ip4_address_t * idaddr, u16 idport,
+ ip4_address_t * xsaddr, u16 xsport,
+ ip4_address_t * xdaddr, u16 xdport,
+ snat_protocol_t proto, u8 is_twicenat);
+
+void nat_syslog_nat44_sdel (u32 ssubix, u32 sfibix, ip4_address_t * isaddr,
+ u16 isport, ip4_address_t * idaddr, u16 idport,
+ ip4_address_t * xsaddr, u16 xsport,
+ ip4_address_t * xdaddr, u16 xdport,
+ snat_protocol_t proto, u8 is_twicenat);
+
+void nat_syslog_nat64_sadd (u32 sfibix, ip6_address_t * isaddr, u16 isport,
+ ip4_address_t * xsaddr, u16 xsport,
+ ip4_address_t * xdaddr, u16 xdport,
+ snat_protocol_t proto);
+
+void nat_syslog_nat64_sdel (u32 sfibix, ip6_address_t * isaddr, u16 isport,
+ ip4_address_t * xsaddr, u16 xsport,
+ ip4_address_t * xdaddr, u16 xdport,
+ snat_protocol_t proto);
+
+#endif /* __included_nat_syslog_h__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/plugins/nat/out2in.c b/src/plugins/nat/out2in.c
index 52f2023efe1..74d20888f57 100755
--- a/src/plugins/nat/out2in.c
+++ b/src/plugins/nat/out2in.c
@@ -29,6 +29,7 @@
#include <nat/nat_ipfix_logging.h>
#include <nat/nat_reass.h>
#include <nat/nat_inlines.h>
+#include <nat/nat_syslog.h>
#include <vppinfra/hash.h>
#include <vppinfra/error.h>
@@ -132,6 +133,11 @@ nat44_o2i_is_idle_session_cb (clib_bihash_kv_8_8_t * kv, void *arg)
s->out2in.port,
s->in2out.fib_index);
+ nat_syslog_nat44_apmdel (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->out2in.addr, s->out2in.port,
+ s->in2out.protocol);
+
if (!snat_is_session_static (s))
snat_free_outside_address_and_port (sm->addresses, ctx->thread_index,
&s->out2in);
@@ -229,6 +235,11 @@ create_session_for_static_mapping (snat_main_t * sm,
s->in2out.protocol,
s->in2out.port,
s->out2in.port, s->in2out.fib_index);
+
+ nat_syslog_nat44_apmadd (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port, &s->out2in.addr,
+ s->out2in.port, s->in2out.protocol);
+
return s;
}
diff --git a/src/plugins/nat/out2in_ed.c b/src/plugins/nat/out2in_ed.c
index aa7f7e40117..f76fc60bda0 100644
--- a/src/plugins/nat/out2in_ed.c
+++ b/src/plugins/nat/out2in_ed.c
@@ -29,6 +29,7 @@
#include <nat/nat_ipfix_logging.h>
#include <nat/nat_reass.h>
#include <nat/nat_inlines.h>
+#include <nat/nat_syslog.h>
#define foreach_nat_out2in_ed_error \
_(UNSUPPORTED_PROTOCOL, "Unsupported protocol") \
@@ -173,6 +174,13 @@ nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg)
s->out2in.port,
s->in2out.fib_index);
+ nat_syslog_nat44_sdel (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->ext_host_nat_addr, s->ext_host_nat_port,
+ &s->out2in.addr, s->out2in.port,
+ &s->ext_host_addr, s->ext_host_port,
+ s->in2out.protocol, is_twice_nat_session (s));
+
if (is_twice_nat_session (s))
{
for (i = 0; i < vec_len (sm->twice_nat_addresses); i++)
@@ -303,6 +311,19 @@ create_session_for_static_mapping_ed (snat_main_t * sm,
&ctx))
nat_log_notice ("in2out-ed key add failed");
+ snat_ipfix_logging_nat44_ses_create (s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->in2out.protocol,
+ s->in2out.port,
+ s->out2in.port, s->in2out.fib_index);
+
+ nat_syslog_nat44_sdel (s->user_index, s->in2out.fib_index,
+ &s->in2out.addr, s->in2out.port,
+ &s->ext_host_nat_addr, s->ext_host_nat_port,
+ &s->out2in.addr, s->out2in.port,
+ &s->ext_host_addr, s->ext_host_port,
+ s->in2out.protocol, is_twice_nat_session (s));
+
return s;
}
diff --git a/test/test_nat.py b/test/test_nat.py
index 59d98d94569..b7b80c95c2a 100644
--- a/test/test_nat.py
+++ b/test/test_nat.py
@@ -21,6 +21,9 @@ from ipfix import IPFIX, Set, Template, Data, IPFIXDecoder
from time import sleep
from util import ip4_range
from util import mactobinary
+from syslog_rfc5424_parser import SyslogMessage, ParseError
+from syslog_rfc5424_parser.constants import SyslogFacility, SyslogSeverity
+from vpp_papi_provider import SYSLOG_SEVERITY
class MethodHolder(VppTestCase):
@@ -69,6 +72,8 @@ class MethodHolder(VppTestCase):
self.ipfix_src_port = 4739
self.ipfix_domain_id = 1
+ self.vapi.syslog_set_filter(SYSLOG_SEVERITY.EMERG)
+
interfaces = self.vapi.nat44_interface_dump()
for intf in interfaces:
if intf.is_inside > 1:
@@ -1031,6 +1036,55 @@ class MethodHolder(VppTestCase):
# sourceIPv4Address
self.assertEqual(src_addr, record[8])
+ def verify_syslog_apmap(self, data, is_add=True):
+ message = data.decode('utf-8')
+ try:
+ message = SyslogMessage.parse(message)
+ self.assertEqual(message.severity, SyslogSeverity.info)
+ self.assertEqual(message.appname, 'NAT')
+ self.assertEqual(message.msgid, 'APMADD' if is_add else 'APMDEL')
+ sd_params = message.sd.get('napmap')
+ self.assertTrue(sd_params is not None)
+ self.assertEqual(sd_params.get('IATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('ISADDR'), self.pg0.remote_ip4)
+ self.assertEqual(sd_params.get('ISPORT'), "%d" % self.tcp_port_in)
+ self.assertEqual(sd_params.get('XATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('XSADDR'), self.nat_addr)
+ self.assertEqual(sd_params.get('XSPORT'), "%d" % self.tcp_port_out)
+ self.assertEqual(sd_params.get('PROTO'), "%d" % IP_PROTOS.tcp)
+ self.assertTrue(sd_params.get('SSUBIX') is not None)
+ self.assertEqual(sd_params.get('SVLAN'), '0')
+ except ParseError as e:
+ self.logger.error(e)
+
+ def verify_syslog_sess(self, data, is_add=True, is_ip6=False):
+ message = data.decode('utf-8')
+ try:
+ message = SyslogMessage.parse(message)
+ self.assertEqual(message.severity, SyslogSeverity.info)
+ self.assertEqual(message.appname, 'NAT')
+ self.assertEqual(message.msgid, 'SADD' if is_add else 'SDEL')
+ sd_params = message.sd.get('nsess')
+ self.assertTrue(sd_params is not None)
+ if is_ip6:
+ self.assertEqual(sd_params.get('IATYP'), 'IPv6')
+ self.assertEqual(sd_params.get('ISADDR'), self.pg0.remote_ip6)
+ else:
+ self.assertEqual(sd_params.get('IATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('ISADDR'), self.pg0.remote_ip4)
+ self.assertTrue(sd_params.get('SSUBIX') is not None)
+ self.assertEqual(sd_params.get('ISPORT'), "%d" % self.tcp_port_in)
+ self.assertEqual(sd_params.get('XATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('XSADDR'), self.nat_addr)
+ self.assertEqual(sd_params.get('XSPORT'), "%d" % self.tcp_port_out)
+ self.assertEqual(sd_params.get('PROTO'), "%d" % IP_PROTOS.tcp)
+ self.assertEqual(sd_params.get('SVLAN'), '0')
+ self.assertEqual(sd_params.get('XDADDR'), self.pg1.remote_ip4)
+ self.assertEqual(sd_params.get('XDPORT'),
+ "%d" % self.tcp_external_port)
+ except ParseError as e:
+ self.logger.error(e)
+
def verify_mss_value(self, pkt, mss):
"""
Verify TCP MSS value
@@ -2687,6 +2741,32 @@ class TestNAT44(MethodHolder):
data = ipfix.decode_data_set(p.getlayer(Set))
self.verify_ipfix_max_sessions(data, max_sessions)
+ def test_syslog_apmap(self):
+ """ Test syslog address and port mapping creation and deletion """
+ self.vapi.syslog_set_filter(SYSLOG_SEVERITY.INFO)
+ self.vapi.syslog_set_sender(self.pg3.remote_ip4n, self.pg3.local_ip4n)
+ self.nat44_add_address(self.nat_addr)
+ self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
+ self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index,
+ is_inside=0)
+
+ p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
+ TCP(sport=self.tcp_port_in, dport=20))
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(1)
+ self.tcp_port_out = capture[0][TCP].sport
+ capture = self.pg3.get_capture(1)
+ self.verify_syslog_apmap(capture[0][Raw].load)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.nat44_add_address(self.nat_addr, is_add=0)
+ capture = self.pg3.get_capture(1)
+ self.verify_syslog_apmap(capture[0][Raw].load, False)
+
def test_pool_addr_fib(self):
""" NAT44 add pool addresses to FIB """
static_addr = '10.0.0.10'
@@ -5777,6 +5857,32 @@ class TestNAT44EndpointDependent(MethodHolder):
self.pg_start()
self.pg1.get_capture(1)
+ def test_syslog_sess(self):
+ """ Test syslog session creation and deletion """
+ self.vapi.syslog_set_filter(SYSLOG_SEVERITY.INFO)
+ self.vapi.syslog_set_sender(self.pg2.remote_ip4n, self.pg2.local_ip4n)
+ self.nat44_add_address(self.nat_addr)
+ self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
+ self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index,
+ is_inside=0)
+
+ p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
+ TCP(sport=self.tcp_port_in, dport=self.tcp_external_port))
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(1)
+ self.tcp_port_out = capture[0][TCP].sport
+ capture = self.pg2.get_capture(1)
+ self.verify_syslog_sess(capture[0][Raw].load)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.nat44_add_address(self.nat_addr, is_add=0)
+ capture = self.pg2.get_capture(1)
+ self.verify_syslog_sess(capture[0][Raw].load, False)
+
def tearDown(self):
super(TestNAT44EndpointDependent, self).tearDown()
if not self.vpp_dead:
@@ -6524,6 +6630,7 @@ class TestNAT64(MethodHolder):
cls.udp_port_out = 6304
cls.icmp_id_in = 6305
cls.icmp_id_out = 6305
+ cls.tcp_external_port = 80
cls.nat_addr = '10.0.0.3'
cls.nat_addr_n = socket.inet_pton(socket.AF_INET, cls.nat_addr)
cls.vrf1_id = 10
@@ -7726,6 +7833,39 @@ class TestNAT64(MethodHolder):
else:
self.logger.error(ppp("Unexpected or invalid packet: ", p))
+ def test_syslog_sess(self):
+ """ Test syslog session creation and deletion """
+ self.tcp_port_in = random.randint(1025, 65535)
+ remote_host_ip6 = self.compose_ip6(self.pg1.remote_ip4,
+ '64:ff9b::',
+ 96)
+
+ self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n,
+ self.nat_addr_n)
+ self.vapi.nat64_add_del_interface(self.pg0.sw_if_index)
+ self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0)
+ self.vapi.syslog_set_filter(SYSLOG_SEVERITY.INFO)
+ self.vapi.syslog_set_sender(self.pg3.remote_ip4n, self.pg3.local_ip4n)
+
+ p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
+ IPv6(src=self.pg0.remote_ip6, dst=remote_host_ip6) /
+ TCP(sport=self.tcp_port_in, dport=self.tcp_external_port))
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ p = self.pg1.get_capture(1)
+ self.tcp_port_out = p[0][TCP].sport
+ capture = self.pg3.get_capture(1)
+ self.verify_syslog_sess(capture[0][Raw].load, is_ip6=True)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n,
+ self.nat_addr_n,
+ is_add=0)
+ capture = self.pg3.get_capture(1)
+ self.verify_syslog_sess(capture[0][Raw].load, False, True)
+
def nat64_get_ses_num(self):
"""
Return number of active NAT64 sessions.
@@ -7742,6 +7882,8 @@ class TestNAT64(MethodHolder):
self.ipfix_src_port = 4739
self.ipfix_domain_id = 1
+ self.vapi.syslog_set_filter(SYSLOG_SEVERITY.EMERG)
+
self.vapi.nat_set_timeouts()
interfaces = self.vapi.nat64_interface_dump()
@@ -7802,7 +7944,7 @@ class TestDSlite(MethodHolder):
cls.nat_addr = '10.0.0.3'
cls.nat_addr_n = socket.inet_pton(socket.AF_INET, cls.nat_addr)
- cls.create_pg_interfaces(range(2))
+ cls.create_pg_interfaces(range(3))
cls.pg0.admin_up()
cls.pg0.config_ip4()
cls.pg0.resolve_arp()
@@ -7810,11 +7952,36 @@ class TestDSlite(MethodHolder):
cls.pg1.config_ip6()
cls.pg1.generate_remote_hosts(2)
cls.pg1.configure_ipv6_neighbors()
+ cls.pg2.admin_up()
+ cls.pg2.config_ip4()
+ cls.pg2.resolve_arp()
except Exception:
super(TestDSlite, cls).tearDownClass()
raise
+ def verify_syslog_apmadd(self, data, isaddr, isport, xsaddr, xsport,
+ sv6enc, proto):
+ message = data.decode('utf-8')
+ try:
+ message = SyslogMessage.parse(message)
+ self.assertEqual(message.severity, SyslogSeverity.info)
+ self.assertEqual(message.appname, 'NAT')
+ self.assertEqual(message.msgid, 'APMADD')
+ sd_params = message.sd.get('napmap')
+ self.assertTrue(sd_params is not None)
+ self.assertEqual(sd_params.get('IATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('ISADDR'), isaddr)
+ self.assertEqual(sd_params.get('ISPORT'), "%d" % isport)
+ self.assertEqual(sd_params.get('XATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('XSADDR'), xsaddr)
+ self.assertEqual(sd_params.get('XSPORT'), "%d" % xsport)
+ self.assertEqual(sd_params.get('PROTO'), "%d" % proto)
+ self.assertTrue(sd_params.get('SSUBIX') is not None)
+ self.assertEqual(sd_params.get('SV6ENC'), sv6enc)
+ except ParseError as e:
+ self.logger.error(e)
+
def test_dslite(self):
""" Test DS-Lite """
nat_config = self.vapi.nat_show_config()
@@ -7827,6 +7994,7 @@ class TestDSlite(MethodHolder):
aftr_ip6 = '2001:db8:85a3::8a2e:370:1'
aftr_ip6_n = socket.inet_pton(socket.AF_INET6, aftr_ip6)
self.vapi.dslite_set_aftr_addr(aftr_ip6_n, aftr_ip4_n)
+ self.vapi.syslog_set_sender(self.pg2.remote_ip4n, self.pg2.local_ip4n)
# UDP
p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
@@ -7845,6 +8013,10 @@ class TestDSlite(MethodHolder):
self.assertEqual(capture[UDP].dport, 10000)
self.assert_packet_checksums_valid(capture)
out_port = capture[UDP].sport
+ capture = self.pg2.get_capture(1)
+ self.verify_syslog_apmadd(capture[0][Raw].load, '192.168.1.1',
+ 20000, self.nat_addr, out_port,
+ self.pg1.remote_hosts[0].ip6, IP_PROTOS.udp)
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(dst=self.nat_addr, src=self.pg0.remote_ip4) /