#include <nat/lib/lib.h>
#include <nat/lib/inlines.h>
#include <nat/lib/ipfix_logging.h>
-#include <nat/lib/nat_proto.h>
/* Session state */
#define foreach_det44_session_state \
#define included_nat_lib_alloc_h__
#include <vnet/ip/ip.h>
-#include <nat/lib/nat_proto.h>
typedef struct nat_ip4_pool_addr_s nat_ip4_pool_addr_t;
typedef struct nat_ip4_addr_port_s nat_ip4_addr_port_t;
#include <vnet/ip/icmp46_packet.h>
+always_inline nat_protocol_t
+ip_proto_to_nat_proto (u8 ip_proto)
+{
+ static const nat_protocol_t lookup_table[256] = {
+ [IP_PROTOCOL_TCP] = NAT_PROTOCOL_TCP,
+ [IP_PROTOCOL_UDP] = NAT_PROTOCOL_UDP,
+ [IP_PROTOCOL_ICMP] = NAT_PROTOCOL_ICMP,
+ [IP_PROTOCOL_ICMP6] = NAT_PROTOCOL_ICMP,
+ };
+
+ return lookup_table[ip_proto];
+}
+
+static_always_inline u8
+nat_proto_to_ip_proto (nat_protocol_t nat_proto)
+{
+ ASSERT (nat_proto <= NAT_PROTOCOL_ICMP);
+
+ static const u8 lookup_table[256] = {
+ [NAT_PROTOCOL_OTHER] = ~0,
+ [NAT_PROTOCOL_TCP] = IP_PROTOCOL_TCP,
+ [NAT_PROTOCOL_UDP] = IP_PROTOCOL_UDP,
+ [NAT_PROTOCOL_ICMP] = IP_PROTOCOL_ICMP,
+ };
+
+ ASSERT (NAT_PROTOCOL_OTHER == nat_proto || NAT_PROTOCOL_TCP == nat_proto
+ || NAT_PROTOCOL_UDP == nat_proto || NAT_PROTOCOL_ICMP == nat_proto);
+
+ return lookup_table[nat_proto];
+}
+
static_always_inline u8
icmp_type_is_error_message (u8 icmp_type)
{
u8 nat_event;
u32 src_ip;
u32 nat_src_ip;
- ip_protocol_t proto;
+ nat_protocol_t nat_proto;
u16 src_port;
u16 nat_src_port;
u32 vrf_id;
static void
nat_ipfix_logging_nat44_ses (u32 thread_index, u8 nat_event, u32 src_ip,
- u32 nat_src_ip, ip_protocol_t proto, u16 src_port,
- u16 nat_src_port, u32 fib_index, int do_flush)
+ u32 nat_src_ip, nat_protocol_t nat_proto,
+ u16 src_port, u16 nat_src_port, u32 fib_index,
+ int do_flush)
{
nat_ipfix_logging_main_t *silm = &nat_ipfix_logging_main;
nat_ipfix_per_thread_data_t *sitd = &silm->per_thread_data[thread_index];
u32 offset;
vlib_main_t *vm = vlib_get_main ();
u64 now;
+ u8 proto;
u16 template_id;
u32 vrf_id;
+ proto = nat_proto_to_ip_proto (nat_proto);
+
now = (u64) ((vlib_time_now (vm) - silm->vlib_time_0) * 1e3);
now += silm->milisecond_time_0;
/**
* @brief Generate NAT44 session create event
+ *
+ * @param thread_index thread index
+ * @param src_ip source IPv4 address
+ * @param nat_src_ip transaltes source IPv4 address
+ * @param nat_proto NAT transport protocol
+ * @param src_port source port
+ * @param nat_src_port translated source port
+ * @param vrf_id VRF ID
*/
void
-nat_ipfix_logging_nat44_ses_create (u32 thread_index, u32 src_ip,
- u32 nat_src_ip, ip_protocol_t proto,
- u16 src_port, u16 nat_src_port,
- u32 fib_index)
+nat_ipfix_logging_nat44_ses_create (u32 thread_index,
+ u32 src_ip,
+ u32 nat_src_ip,
+ nat_protocol_t nat_proto,
+ u16 src_port,
+ u16 nat_src_port, u32 fib_index)
{
skip_if_disabled ();
nat_ipfix_logging_nat44_ses (thread_index, NAT44_SESSION_CREATE, src_ip,
- nat_src_ip, proto, src_port, nat_src_port,
- fib_index, 0);
+ nat_src_ip, nat_proto, src_port, nat_src_port,
+ fib_index, 0);
}
/**
* @brief Generate NAT44 session delete event
+ *
+ * @param thread_index thread index
+ * @param src_ip source IPv4 address
+ * @param nat_src_ip transaltes source IPv4 address
+ * @param nat_proto NAT transport protocol
+ * @param src_port source port
+ * @param nat_src_port translated source port
+ * @param vrf_id VRF ID
*/
void
-nat_ipfix_logging_nat44_ses_delete (u32 thread_index, u32 src_ip,
- u32 nat_src_ip, ip_protocol_t proto,
- u16 src_port, u16 nat_src_port,
- u32 fib_index)
+nat_ipfix_logging_nat44_ses_delete (u32 thread_index,
+ u32 src_ip,
+ u32 nat_src_ip,
+ nat_protocol_t nat_proto,
+ u16 src_port,
+ u16 nat_src_port, u32 fib_index)
{
skip_if_disabled ();
nat_ipfix_logging_nat44_ses (thread_index, NAT44_SESSION_DELETE, src_ip,
- nat_src_ip, proto, src_port, nat_src_port,
- fib_index, 0);
+ nat_src_ip, nat_proto, src_port, nat_src_port,
+ fib_index, 0);
}
/**
void nat_ipfix_logging_init (vlib_main_t * vm);
int nat_ipfix_logging_enable_disable (int enable, u32 domain_id, u16 src_port);
void nat_ipfix_logging_nat44_ses_create (u32 thread_index, u32 src_ip,
- u32 nat_src_ip, ip_protocol_t proto,
- u16 src_port, u16 nat_src_port,
- u32 fib_index);
+ u32 nat_src_ip,
+ nat_protocol_t nat_proto,
+ u16 src_port, u16 nat_src_port,
+ u32 fib_index);
void nat_ipfix_logging_nat44_ses_delete (u32 thread_index, u32 src_ip,
- u32 nat_src_ip, ip_protocol_t proto,
- u16 src_port, u16 nat_src_port,
- u32 fib_index);
+ u32 nat_src_ip,
+ nat_protocol_t nat_proto,
+ u16 src_port, u16 nat_src_port,
+ u32 fib_index);
void nat_ipfix_logging_addresses_exhausted(u32 thread_index, u32 pool_id);
void nat_ipfix_logging_max_entries_per_user(u32 thread_index,
u32 limit, u32 src_ip);
*/
#include <nat/lib/lib.h>
-#include <nat/lib/nat_proto.h>
uword
unformat_nat_protocol (unformat_input_t *input, va_list *args)
#undef _
} nat_error_t;
+#define foreach_nat_protocol \
+ _ (OTHER, 0, other, "other") \
+ _ (UDP, 1, udp, "udp") \
+ _ (TCP, 2, tcp, "tcp") \
+ _ (ICMP, 3, icmp, "icmp")
+
+typedef enum
+{
+#define _(N, i, n, s) NAT_PROTOCOL_##N = i,
+ foreach_nat_protocol
+#undef _
+} nat_protocol_t;
+
/* default protocol timeouts */
#define NAT_UDP_TIMEOUT 300
#define NAT_TCP_TRANSITORY_TIMEOUT 240
timeouts->icmp = NAT_ICMP_TIMEOUT;
}
+static_always_inline u32
+nat_session_get_timeout (nat_timeouts_t *timeouts, nat_protocol_t proto,
+ u8 state)
+{
+ switch (proto)
+ {
+ case NAT_PROTOCOL_ICMP:
+ return timeouts->icmp;
+ case NAT_PROTOCOL_UDP:
+ return timeouts->udp;
+ case NAT_PROTOCOL_TCP:
+ {
+ if (state)
+ return timeouts->tcp.transitory;
+ else
+ return timeouts->tcp.established;
+ }
+ default:
+ return timeouts->udp;
+ }
+ return 0;
+}
+
static_always_inline u32
nat_calc_bihash_buckets (u32 n_elts)
{
return lower_pow2;
}
+u8 *format_nat_protocol (u8 *s, va_list *args);
+
+uword unformat_nat_protocol (unformat_input_t *input, va_list *args);
+
#endif /* included_nat_lib_h__ */
/*
* fd.io coding-style-patch-verification: ON
+++ /dev/null
-/*
- * Copyright (c) 2021 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.
- */
-#ifndef included_nat_proto_h__
-#define included_nat_proto_h__
-
-#include <vnet/ip/ip.h>
-
-#define foreach_nat_protocol \
- _ (OTHER, 0, other, "other") \
- _ (UDP, 1, udp, "udp") \
- _ (TCP, 2, tcp, "tcp") \
- _ (ICMP, 3, icmp, "icmp")
-
-typedef enum
-{
-#define _(N, i, n, s) NAT_PROTOCOL_##N = i,
- foreach_nat_protocol
-#undef _
-} nat_protocol_t;
-
-always_inline nat_protocol_t
-ip_proto_to_nat_proto (ip_protocol_t ip_proto)
-{
- static const nat_protocol_t lookup_table[256] = {
- [IP_PROTOCOL_TCP] = NAT_PROTOCOL_TCP,
- [IP_PROTOCOL_UDP] = NAT_PROTOCOL_UDP,
- [IP_PROTOCOL_ICMP] = NAT_PROTOCOL_ICMP,
- [IP_PROTOCOL_ICMP6] = NAT_PROTOCOL_ICMP,
- };
-
- return lookup_table[ip_proto];
-}
-
-static_always_inline ip_protocol_t
-nat_proto_to_ip_proto (nat_protocol_t nat_proto)
-{
- ASSERT (nat_proto <= NAT_PROTOCOL_ICMP);
-
- static const u8 lookup_table[256] = {
- [NAT_PROTOCOL_OTHER] = ~0,
- [NAT_PROTOCOL_TCP] = IP_PROTOCOL_TCP,
- [NAT_PROTOCOL_UDP] = IP_PROTOCOL_UDP,
- [NAT_PROTOCOL_ICMP] = IP_PROTOCOL_ICMP,
- };
-
- ASSERT (NAT_PROTOCOL_OTHER == nat_proto || NAT_PROTOCOL_TCP == nat_proto ||
- NAT_PROTOCOL_UDP == nat_proto || NAT_PROTOCOL_ICMP == nat_proto);
-
- return lookup_table[nat_proto];
-}
-
-u8 *format_nat_protocol (u8 *s, va_list *args);
-
-uword unformat_nat_protocol (unformat_input_t *input, va_list *args);
-
-#endif /* included_nat_proto_h__ */
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
#include <nat/lib/nat_syslog.h>
#include <nat/lib/inlines.h>
-#include <nat/lib/nat_syslog_constants.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,
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,
+ nat_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",
+ nat_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,
+ nat_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,
+ nat_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,
#define __included_nat_syslog_h__
#include <nat/lib/lib.h>
-#include <nat/lib/nat_proto.h>
void nat_syslog_nat44_apmadd (u32 ssubix, u32 sfibix, ip4_address_t * isaddr,
u16 isport, ip4_address_t * xsaddr, u16 xsport,
ip4_address_t * xsaddr, u16 xsport,
nat_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,
+ nat_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,
+ nat_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,
+++ /dev/null
-/*
- * Copyright (c) 2021 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 constants
- */
-#ifndef __included_nat_syslog_constants_h__
-#define __included_nat_syslog_constants_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"
-
-#endif /* __included_nat_syslog_constants_h__ */
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
#include <vppinfra/bihash_16_8.h>
#include <nat/lib/log.h>
+#include <nat/lib/nat_syslog.h>
#include <nat/lib/nat_inlines.h>
#include <nat/lib/ipfix_logging.h>
-#include <vnet/syslog/syslog.h>
-#include <nat/lib/nat_syslog_constants.h>
-#include <nat/lib/nat_syslog.h>
#include <nat/nat44-ed/nat44_ed.h>
#include <nat/nat44-ed/nat44_ed_affinity.h>
u32 nat_calc_bihash_buckets (u32 n_elts);
+u8 *
+format_session_kvp (u8 * s, va_list * args)
+{
+ clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *);
+
+ s = format (s, "%U thread-index %llu session-index %llu", format_snat_key,
+ v->key, nat_value_get_thread_index (v),
+ nat_value_get_session_index (v));
+
+ return s;
+}
+
+u8 *
+format_static_mapping_kvp (u8 * s, va_list * args)
+{
+ clib_bihash_kv_8_8_t *v = va_arg (*args, clib_bihash_kv_8_8_t *);
+
+ s = format (s, "%U static-mapping-index %llu",
+ format_snat_key, v->key, v->value);
+
+ return s;
+}
+
u8 *
format_ed_session_kvp (u8 * s, va_list * args)
{
return s;
}
-static_always_inline int
-nat44_ed_sm_i2o_add (snat_main_t *sm, snat_static_mapping_t *m,
- ip4_address_t addr, u16 port, u32 fib_index, u8 proto)
+void
+nat_free_session_data (snat_main_t * sm, snat_session_t * s, u32 thread_index,
+ u8 is_ha)
{
- ASSERT (!pool_is_free (sm->static_mappings, m));
- clib_bihash_kv_16_8_t kv;
- nat44_ed_sm_init_i2o_kv (&kv, addr.as_u32, port, fib_index, proto,
- m - sm->static_mappings);
- return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 1 /*is_add*/);
-}
+ per_vrf_sessions_unregister_session (s, thread_index);
-static_always_inline int
-nat44_ed_sm_i2o_del (snat_main_t *sm, ip4_address_t addr, u16 port,
- u32 fib_index, u8 proto)
-{
- clib_bihash_kv_16_8_t kv;
- nat44_ed_sm_init_i2o_k (&kv, addr.as_u32, port, fib_index, proto);
- return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 0 /*is_add*/);
-}
+ if (nat_ed_ses_i2o_flow_hash_add_del (sm, thread_index, s, 0))
+ nat_elog_warn (sm, "flow hash del failed");
-static_always_inline int
-nat44_ed_sm_o2i_add (snat_main_t *sm, snat_static_mapping_t *m,
- ip4_address_t addr, u16 port, u32 fib_index, u8 proto)
-{
- ASSERT (!pool_is_free (sm->static_mappings, m));
- clib_bihash_kv_16_8_t kv;
- nat44_ed_sm_init_o2i_kv (&kv, addr.as_u32, port, fib_index, proto,
- m - sm->static_mappings);
- return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 1 /*is_add*/);
-}
+ if (nat_ed_ses_o2i_flow_hash_add_del (sm, thread_index, s, 0))
+ nat_elog_warn (sm, "flow hash del failed");
-static_always_inline int
-nat44_ed_sm_o2i_del (snat_main_t *sm, ip4_address_t addr, u16 port,
- u32 fib_index, u8 proto)
-{
- clib_bihash_kv_16_8_t kv;
- nat44_ed_sm_init_o2i_k (&kv, addr.as_u32, port, fib_index, proto);
- return clib_bihash_add_del_16_8 (&sm->flow_hash, &kv, 0 /*is_add*/);
-}
+ if (na44_ed_is_fwd_bypass_session (s))
+ {
+ return;
+ }
-void
-nat44_ed_free_session_data (snat_main_t *sm, snat_session_t *s,
- u32 thread_index, u8 is_ha)
-{
- per_vrf_sessions_unregister_session (s, thread_index);
+ if (nat44_ed_is_affinity_session (s))
+ nat_affinity_unlock (s->ext_host_addr, s->out2in.addr, s->nat_proto,
+ s->out2in.port);
- if (nat_ed_ses_i2o_flow_hash_add_del (sm, thread_index, s, 0))
- nat_elog_warn (sm, "flow hash del failed");
+ if (!is_ha)
+ nat_syslog_nat44_sdel (
+ 0, 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->nat_proto,
+ nat44_ed_is_twice_nat_session (s));
- if (nat_ed_ses_o2i_flow_hash_add_del (sm, thread_index, s, 0))
- nat_elog_warn (sm, "flow hash del failed");
+ if (snat_is_unk_proto_session (s))
+ return;
- if (na44_ed_is_fwd_bypass_session (s))
- {
- return;
- }
+ if (!is_ha)
+ {
+ /* log NAT event */
+ nat_ipfix_logging_nat44_ses_delete (
+ thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32,
+ s->nat_proto, s->in2out.port, s->out2in.port, s->in2out.fib_index);
+ }
- if (nat44_ed_is_affinity_session (s))
- nat_affinity_unlock (s->ext_host_addr, s->out2in.addr, s->proto,
- s->out2in.port);
+ /* Twice NAT address and port for external host */
+ if (nat44_ed_is_twice_nat_session (s))
+ {
+ snat_free_outside_address_and_port (
+ sm->twice_nat_addresses, thread_index, &s->ext_host_nat_addr,
+ s->ext_host_nat_port, s->nat_proto);
+ }
- if (!is_ha)
- nat_syslog_nat44_sdel (0, 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->proto, nat44_ed_is_twice_nat_session (s));
+ if (nat44_ed_is_session_static (s))
+ return;
- if (!is_ha)
- {
- /* log NAT event */
- nat_ipfix_logging_nat44_ses_delete (
- thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32, s->proto,
- s->in2out.port, s->out2in.port, s->in2out.fib_index);
- }
+ snat_free_outside_address_and_port (sm->addresses, thread_index,
+ &s->out2in.addr, s->out2in.port,
+ s->nat_proto);
}
static int
nat44_ed_add_address (ip4_address_t *addr, u32 vrf_id, u8 twice_nat)
{
snat_main_t *sm = &snat_main;
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
snat_address_t *ap, *addresses;
addresses = twice_nat ? sm->twice_nat_addresses : sm->addresses;
FIB_PROTOCOL_IP4, vrf_id, sm->fib_src_low);
}
+#define _(N, i, n, s) \
+ clib_memset (ap->busy_##n##_port_refcounts, 0, \
+ sizeof (ap->busy_##n##_port_refcounts)); \
+ ap->busy_##n##_ports = 0; \
+ ap->busy_##n##_ports_per_thread = 0; \
+ vec_validate_init_empty (ap->busy_##n##_ports_per_thread, \
+ tm->n_vlib_mains - 1, 0);
+ foreach_nat_protocol
+#undef _
+
if (!twice_nat)
{
// if we don't have enabled interface we don't add address
{
nat44_ed_del_static_mapping (m->local_addr, m->external_addr,
m->local_port, m->external_port,
- ip_proto_to_nat_proto (m->proto),
- m->vrf_id, ~0, m->flags);
+ m->proto, m->vrf_id, ~0, m->flags);
}
}
}
}
// delete sessions using address
- vec_foreach (tsm, sm->per_thread_data)
+ if (a->busy_tcp_ports || a->busy_udp_ports || a->busy_icmp_ports)
{
- pool_foreach (ses, tsm->sessions)
+ vec_foreach (tsm, sm->per_thread_data)
{
- if (ses->out2in.addr.as_u32 == addr.as_u32)
+ pool_foreach (ses, tsm->sessions)
{
- nat44_ed_free_session_data (sm, ses, tsm - sm->per_thread_data,
- 0);
- vec_add1 (ses_to_be_removed, ses - tsm->sessions);
+ if (ses->out2in.addr.as_u32 == addr.as_u32)
+ {
+ nat_free_session_data (sm, ses, tsm - sm->per_thread_data,
+ 0);
+ vec_add1 (ses_to_be_removed, ses - tsm->sessions);
+ }
}
+ vec_foreach (ses_index, ses_to_be_removed)
+ {
+ ses = pool_elt_at_index (tsm->sessions, ses_index[0]);
+ nat_ed_session_delete (sm, ses, tsm - sm->per_thread_data, 1);
+ }
+ vec_free (ses_to_be_removed);
}
- vec_foreach (ses_index, ses_to_be_removed)
- {
- ses = pool_elt_at_index (tsm->sessions, ses_index[0]);
- nat_ed_session_delete (sm, ses, tsm - sm->per_thread_data, 1);
- }
- vec_free (ses_to_be_removed);
}
+#define _(N, i, n, s) vec_free (a->busy_##n##_ports_per_thread);
+ foreach_nat_protocol
+#undef _
+
if (!twice_nat)
{
vec_del1 (sm->addresses, j);
}
if (!addr_only)
{
- if ((s->out2in.addr.as_u32 != e_addr.as_u32) ||
- s->out2in.port != e_port || s->in2out.port != l_port ||
- s->proto != protocol)
- continue;
+ if ((s->out2in.addr.as_u32 != e_addr.as_u32) ||
+ s->out2in.port != e_port ||
+ s->in2out.port != l_port ||
+ s->nat_proto != protocol)
+ continue;
}
if (nat44_ed_is_lb_session (s))
continue;
if (!nat44_ed_is_session_static (s))
continue;
- nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
vec_add1 (indexes_to_free, s - tsm->sessions);
if (!addr_only)
break;
vec_free (indexes_to_free);
}
-static_always_inline snat_static_mapping_t *
-nat44_ed_sm_lookup (snat_main_t *sm, clib_bihash_kv_16_8_t *kv)
+int
+nat44_ed_reserve_port (ip4_address_t addr, u16 port, nat_protocol_t proto)
{
- clib_bihash_kv_16_8_t v;
- int rc = clib_bihash_search_16_8 (&sm->flow_hash, kv, &v);
- if (!rc)
+ u32 ti = get_thread_idx_by_port (port);
+ snat_main_t *sm = &snat_main;
+ snat_address_t *a = 0;
+ int i;
+
+ for (i = 0; i < vec_len (sm->addresses); i++)
{
- ASSERT (0 == ed_value_get_thread_index (&v));
- return pool_elt_at_index (sm->static_mappings,
- ed_value_get_session_index (&v));
+ a = sm->addresses + i;
+
+ if (a->addr.as_u32 != addr.as_u32)
+ continue;
+
+ switch (proto)
+ {
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ if (a->busy_##n##_port_refcounts[port]) \
+ goto done; \
+ ++a->busy_##n##_port_refcounts[port]; \
+ if (port > 1024) \
+ { \
+ a->busy_##n##_ports++; \
+ a->busy_##n##_ports_per_thread[ti]++; \
+ } \
+ break;
+ foreach_nat_protocol
+#undef _
+ default : nat_elog_info (sm, "unknown protocol");
+ goto done;
+ }
+
+ return 0;
}
- return NULL;
-}
-snat_static_mapping_t *
-nat44_ed_sm_o2i_lookup (snat_main_t *sm, ip4_address_t addr, u16 port,
- u32 fib_index, u8 proto)
-{
- clib_bihash_kv_16_8_t kv;
- nat44_ed_sm_init_o2i_k (&kv, addr.as_u32, port, fib_index, proto);
- return nat44_ed_sm_lookup (sm, &kv);
+done:
+ return 1;
}
-snat_static_mapping_t *
-nat44_ed_sm_i2o_lookup (snat_main_t *sm, ip4_address_t addr, u16 port,
- u32 fib_index, u8 proto)
+int
+nat44_ed_free_port (ip4_address_t addr, u16 port, nat_protocol_t proto)
{
- clib_bihash_kv_16_8_t kv;
- nat44_ed_sm_init_i2o_k (&kv, addr.as_u32, port, fib_index, proto);
- return nat44_ed_sm_lookup (sm, &kv);
+ u32 ti = get_thread_idx_by_port (port);
+ snat_main_t *sm = &snat_main;
+ snat_address_t *a = 0;
+ int i;
+
+ for (i = 0; i < vec_len (sm->addresses); i++)
+ {
+ a = sm->addresses + i;
+
+ if (a->addr.as_u32 != addr.as_u32)
+ continue;
+
+ switch (proto)
+ {
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ --a->busy_##n##_port_refcounts[port]; \
+ if (port > 1024) \
+ { \
+ a->busy_##n##_ports--; \
+ a->busy_##n##_ports_per_thread[ti]--; \
+ } \
+ break;
+ foreach_nat_protocol
+#undef _
+ default : nat_elog_info (sm, "unknown protocol");
+ goto done;
+ }
+
+ return 0;
+ }
+
+done:
+ return 1;
}
void
nat44_ed_add_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port,
- ip_protocol_t proto, u32 vrf_id, u32 sw_if_index,
+ nat_protocol_t proto, u32 vrf_id, u32 sw_if_index,
u32 flags, ip4_address_t pool_addr, u8 *tag)
{
snat_static_map_resolve_t *rp;
int
nat44_ed_get_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port,
- ip_protocol_t proto, u32 vrf_id, u32 sw_if_index,
+ nat_protocol_t proto, u32 vrf_id, u32 sw_if_index,
u32 flags, int *out)
{
snat_static_map_resolve_t *rp;
int
nat44_ed_del_resolve_record (ip4_address_t l_addr, u16 l_port, u16 e_port,
- ip_protocol_t proto, u32 vrf_id, u32 sw_if_index,
+ nat_protocol_t proto, u32 vrf_id, u32 sw_if_index,
u32 flags)
{
snat_main_t *sm = &snat_main;
return 0;
}
-snat_address_t *
-nat44_ed_addr_lookup (snat_main_t *sm, u32 addr)
-{
- for (int i = 0; i < vec_len (sm->addresses); ++i)
- {
- if (sm->addresses[i].addr.as_u32 == addr)
- return &sm->addresses[i];
- }
- return NULL;
-}
-
int
nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
- u16 l_port, u16 e_port, ip_protocol_t proto,
+ u16 l_port, u16 e_port, nat_protocol_t proto,
u32 vrf_id, u32 sw_if_index, u32 flags,
ip4_address_t pool_addr, u8 *tag)
{
snat_main_t *sm = &snat_main;
+ clib_bihash_kv_8_8_t kv, value;
nat44_lb_addr_port_t *local;
snat_static_mapping_t *m;
u32 fib_index = ~0;
l_addr.as_u32 = e_addr.as_u32;
}
- m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto);
- if (m)
+ // fib index 0
+ init_nat_k (&kv, e_addr, e_port, 0, proto);
+
+ if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
{
+ m = pool_elt_at_index (sm->static_mappings, value.value);
if (!is_sm_identity_nat (m->flags))
{
return VNET_API_ERROR_VALUE_EXIST;
local->fib_index = fib_table_find_or_create_and_lock (
FIB_PROTOCOL_IP4, vrf_id, sm->fib_src_low);
- nat44_ed_sm_i2o_add (sm, m, m->local_addr, m->local_port,
- local->fib_index, m->proto);
+ init_nat_kv (&kv, m->local_addr, m->local_port, local->fib_index,
+ m->proto, 0, m - sm->static_mappings);
+ clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1);
return 0;
}
// identity nat supports multiple records in local mapping
if (!(is_sm_out2in_only (flags) || is_sm_identity_nat (flags)))
{
- if (nat44_ed_sm_i2o_lookup (sm, l_addr, l_port, fib_index, proto))
+ init_nat_k (&kv, l_addr, l_port, fib_index, proto);
+ if (!clib_bihash_search_8_8 (&sm->static_mapping_by_local, &kv, &value))
{
return VNET_API_ERROR_VALUE_EXIST;
}
if (!(is_sm_out2in_only (flags) || is_sm_addr_only (flags) ||
sm->static_mapping_only))
{
- if (!nat44_ed_addr_lookup (sm, e_addr.as_u32))
+ if (nat44_ed_reserve_port (e_addr, e_port, proto))
{
// remove resolve record
if (is_sm_switch_address (flags) && !is_sm_identity_nat (flags))
if (!is_sm_out2in_only (flags))
{
- nat44_ed_sm_i2o_add (sm, m, m->local_addr, m->local_port, fib_index,
- m->proto);
+ init_nat_kv (&kv, m->local_addr, m->local_port, fib_index, m->proto, 0,
+ m - sm->static_mappings);
+ clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1);
}
- nat44_ed_sm_o2i_add (sm, m, m->external_addr, m->external_port, 0, m->proto);
+ init_nat_kv (&kv, m->external_addr, m->external_port, 0, m->proto, 0,
+ m - sm->static_mappings);
+ clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1);
if (sm->num_workers > 1)
{
int
nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
- u16 l_port, u16 e_port, ip_protocol_t proto,
+ u16 l_port, u16 e_port, nat_protocol_t proto,
u32 vrf_id, u32 sw_if_index, u32 flags)
{
snat_main_per_thread_data_t *tsm;
snat_main_t *sm = &snat_main;
+ clib_bihash_kv_8_8_t kv, value;
nat44_lb_addr_port_t *local;
snat_static_mapping_t *m;
u32 fib_index = ~0;
}
// fib index 0
- m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto);
+ init_nat_k (&kv, e_addr, e_port, 0, proto);
- if (!m)
+ if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
{
if (is_sm_switch_address (flags))
{
return VNET_API_ERROR_NO_SUCH_ENTRY;
}
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+
if (is_sm_identity_nat (flags))
{
u8 failure = 1;
if (!(is_sm_out2in_only (flags) || is_sm_addr_only (flags) ||
sm->static_mapping_only))
{
- if (!nat44_ed_addr_lookup (sm, e_addr.as_u32))
+ if (nat44_ed_free_port (e_addr, e_port, proto))
{
return VNET_API_ERROR_INVALID_VALUE;
}
if (!is_sm_out2in_only (flags))
{
- nat44_ed_sm_i2o_del (sm, l_addr, l_port, fib_index, proto);
+ init_nat_k (&kv, l_addr, l_port, fib_index, proto);
+ clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0);
}
if (!sm->static_mapping_only || sm->static_mapping_connection_tracking)
{
// this is last record remove all required stuff
// fib_index 0
- nat44_ed_sm_o2i_del (sm, e_addr, e_port, 0, proto);
+ init_nat_k (&kv, e_addr, e_port, 0, proto);
+ clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 0);
vec_free (m->tag);
vec_free (m->workers);
int
nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
- ip_protocol_t proto,
+ nat_protocol_t proto,
nat44_lb_addr_port_t *locals, u32 flags,
u8 *tag, u32 affinity)
{
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
+ clib_bihash_kv_8_8_t kv, value;
snat_address_t *a = 0;
nat44_lb_addr_port_t *local;
uword *bitmap = 0;
- int rc = 0;
int i;
return VNET_API_ERROR_UNSUPPORTED;
}
- m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto);
+ init_nat_k (&kv, e_addr, e_port, 0, proto);
+ if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
+ {
+ m = 0;
+ }
+ else
+ {
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+ }
if (m)
{
{
if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
{
- /* External port must be unused */
a = sm->addresses + i;
- if (nat44_ed_sm_o2i_lookup (sm, a->addr, e_port, 0, proto))
+ /* External port must be unused */
+ switch (proto)
{
- return VNET_API_ERROR_VALUE_EXIST;
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ if (a->busy_##n##_port_refcounts[e_port]) \
+ return VNET_API_ERROR_INVALID_VALUE; \
+ ++a->busy_##n##_port_refcounts[e_port]; \
+ if (e_port > 1024) \
+ { \
+ a->busy_##n##_ports++; \
+ a->busy_##n##_ports_per_thread[get_thread_idx_by_port (e_port)]++; \
+ } \
+ break;
+ foreach_nat_protocol
+#undef _
+ default : nat_elog_info (sm, "unknown protocol");
+ return VNET_API_ERROR_INVALID_VALUE_2;
}
break;
}
else
m->affinity_per_service_list_head_index = ~0;
- if (nat44_ed_sm_o2i_add (sm, m, m->external_addr, m->external_port, 0,
- m->proto))
+ init_nat_kv (&kv, m->external_addr, m->external_port, 0, m->proto, 0,
+ m - sm->static_mappings);
+ if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 1))
{
- nat_elog_err (sm, "sm o2i key add failed");
+ nat_elog_err (sm, "static_mapping_by_external key add failed");
return VNET_API_ERROR_UNSPECIFIED;
}
FIB_PROTOCOL_IP4, locals[i].vrf_id, sm->fib_src_low);
if (!is_sm_out2in_only (flags))
{
- if (nat44_ed_sm_o2i_add (sm, m, e_addr, e_port, 0, proto))
- {
- nat_elog_err (sm, "sm o2i key add failed");
- rc = VNET_API_ERROR_UNSPECIFIED;
- // here we continue with add operation so that it can be safely
- // reversed in delete path - otherwise we'd have to track what
- // we've done and deal with partial cleanups and since bihash
- // adds are (extremely improbable) the only points of failure,
- // it's easier to just do it this way
- }
+ init_nat_kv (&kv, locals[i].addr, locals[i].port,
+ locals[i].fib_index, m->proto, 0,
+ m - sm->static_mappings);
+ clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1);
}
locals[i].prefix = (i == 0) ?
locals[i].probability :
}
}
- return rc;
+ return 0;
}
int
nat44_ed_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
- ip_protocol_t proto, u32 flags)
+ nat_protocol_t proto, u32 flags)
{
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
+ clib_bihash_kv_8_8_t kv, value;
+ snat_address_t *a = 0;
nat44_lb_addr_port_t *local;
snat_main_per_thread_data_t *tsm;
snat_session_t *s;
+ int i;
if (!sm->enabled)
{
return VNET_API_ERROR_UNSUPPORTED;
}
- m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto);
+ init_nat_k (&kv, e_addr, e_port, 0, proto);
+ if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
+ m = 0;
+ else
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+
if (!m)
return VNET_API_ERROR_NO_SUCH_ENTRY;
if (!is_sm_lb (m->flags))
return VNET_API_ERROR_INVALID_VALUE;
- if (nat44_ed_sm_o2i_del (sm, m->external_addr, m->external_port, 0,
- m->proto))
+ if (!(sm->static_mapping_only || is_sm_out2in_only (flags)))
{
- nat_elog_err (sm, "sm o2i key del failed");
+ for (i = 0; i < vec_len (sm->addresses); i++)
+ {
+ if (sm->addresses[i].addr.as_u32 == e_addr.as_u32)
+ {
+ a = sm->addresses + i;
+ switch (proto)
+ {
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ --a->busy_##n##_port_refcounts[e_port]; \
+ if (e_port > 1024) \
+ { \
+ a->busy_##n##_ports--; \
+ a->busy_##n##_ports_per_thread[get_thread_idx_by_port (e_port)]--; \
+ } \
+ break;
+ foreach_nat_protocol
+#undef _
+ default : nat_elog_info (sm, "unknown protocol");
+ return VNET_API_ERROR_INVALID_VALUE_2;
+ }
+ break;
+ }
+ }
+ }
+
+ init_nat_k (&kv, m->external_addr, m->external_port, 0, m->proto);
+ if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_external, &kv, 0))
+ {
+ nat_elog_err (sm, "static_mapping_by_external key del failed");
return VNET_API_ERROR_UNSPECIFIED;
}
fib_table_unlock (local->fib_index, FIB_PROTOCOL_IP4, sm->fib_src_low);
if (!is_sm_out2in_only (flags))
{
- if (nat44_ed_sm_i2o_del (sm, local->addr, local->port,
- local->fib_index, m->proto))
+ init_nat_k (&kv, local->addr, local->port, local->fib_index,
+ m->proto);
+ if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0))
{
- nat_elog_err (sm, "sm i2o key del failed");
+ nat_elog_err (sm, "static_mapping_by_local key del failed");
return VNET_API_ERROR_UNSPECIFIED;
}
}
s->in2out.port != local->port)
continue;
- nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
}
}
int
nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port,
ip4_address_t l_addr, u16 l_port,
- ip_protocol_t proto, u32 vrf_id,
+ nat_protocol_t proto, u32 vrf_id,
u8 probability, u8 is_add)
{
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m = 0;
+ clib_bihash_kv_8_8_t kv, value;
nat44_lb_addr_port_t *local, *prev_local, *match_local = 0;
snat_main_per_thread_data_t *tsm;
snat_session_t *s;
return VNET_API_ERROR_UNSUPPORTED;
}
- m = nat44_ed_sm_o2i_lookup (sm, e_addr, e_port, 0, proto);
+ init_nat_k (&kv, e_addr, e_port, 0, proto);
+ if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
+ m = pool_elt_at_index (sm->static_mappings, value.value);
if (!m)
{
if (!is_sm_out2in_only (m->flags))
{
- if (nat44_ed_sm_i2o_add (sm, m, l_addr, l_port, local->fib_index,
- proto))
- {
- nat_elog_err (sm, "sm i2o key add failed");
- pool_put (m->locals, local);
- return VNET_API_ERROR_UNSPECIFIED;
- }
+ init_nat_kv (&kv, l_addr, l_port, local->fib_index, proto, 0,
+ m - sm->static_mappings);
+ if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 1))
+ nat_elog_err (sm, "static_mapping_by_local key add failed");
}
}
else
if (!is_sm_out2in_only (m->flags))
{
- if (nat44_ed_sm_i2o_del (sm, l_addr, l_port, match_local->fib_index,
- proto))
- nat_elog_err (sm, "sm i2o key del failed");
+ init_nat_k (&kv, l_addr, l_port, match_local->fib_index, proto);
+ if (clib_bihash_add_del_8_8 (&sm->static_mapping_by_local, &kv, 0))
+ nat_elog_err (sm, "static_mapping_by_local key del failed");
}
if (sm->num_workers > 1)
s->in2out.port != match_local->port)
continue;
- nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
}
u32 thread_index = 3000000001;
u32 session_index = 3000000221;
clib_bihash_kv_16_8_t kv;
- init_ed_kv (&kv, l_addr.as_u32, l_port, r_addr.as_u32, r_port, fib_index,
- proto, thread_index, session_index);
+ init_ed_kv (&kv, l_addr, l_port, r_addr, r_port, fib_index, proto,
+ thread_index, session_index);
ip4_address_t l_addr2;
ip4_address_t r_addr2;
clib_memset (&l_addr2, 0, sizeof (l_addr2));
ASSERT (fib_index == fib_index2);
ASSERT (thread_index == ed_value_get_thread_index (&kv));
ASSERT (session_index == ed_value_get_session_index (&kv));
+
+ fib_index = 7001;
+ proto = 5;
+ nat_protocol_t proto3 = ~0;
+ u64 key = calc_nat_key (l_addr, l_port, fib_index, proto);
+ split_nat_key (key, &l_addr2, &l_port2, &fib_index2, &proto3);
+ ASSERT (l_addr.as_u32 == l_addr2.as_u32);
+ ASSERT (l_port == l_port2);
+ ASSERT (proto == proto3);
+ ASSERT (fib_index == fib_index2);
}
static clib_error_t *
void
nat44_addresses_free (snat_address_t ** addresses)
{
+ snat_address_t *ap;
+ vec_foreach (ap, *addresses)
+ {
+ #define _(N, i, n, s) \
+ vec_free (ap->busy_##n##_ports_per_thread);
+ foreach_nat_protocol
+ #undef _
+ }
vec_free (*addresses);
*addresses = 0;
}
vec_foreach (ses_index, ses_to_be_removed)
{
s = pool_elt_at_index (tsm->sessions, ses_index[0]);
- nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
}
}
}
-static_always_inline snat_static_mapping_t *
-nat44_ed_sm_match (snat_main_t *sm, ip4_address_t match_addr, u16 match_port,
- u32 match_fib_index, ip_protocol_t match_protocol,
- int by_external)
+void
+snat_free_outside_address_and_port (snat_address_t *addresses,
+ u32 thread_index, ip4_address_t *addr,
+ u16 port, nat_protocol_t protocol)
{
- snat_static_mapping_t *m;
- if (!by_external)
- {
- m = nat44_ed_sm_i2o_lookup (sm, match_addr, match_port, match_fib_index,
- match_protocol);
- if (m)
- return m;
+ snat_main_t *sm = &snat_main;
+ snat_address_t *a;
+ u32 address_index;
+ u16 port_host_byte_order = clib_net_to_host_u16 (port);
- /* Try address only mapping */
- m = nat44_ed_sm_i2o_lookup (sm, match_addr, 0, match_fib_index, 0);
- if (m)
- return m;
+ for (address_index = 0; address_index < vec_len (addresses);
+ address_index++)
+ {
+ if (addresses[address_index].addr.as_u32 == addr->as_u32)
+ break;
+ }
- if (sm->inside_fib_index != match_fib_index)
- {
- m = nat44_ed_sm_i2o_lookup (sm, match_addr, match_port,
- sm->inside_fib_index, match_protocol);
- if (m)
- return m;
+ ASSERT (address_index < vec_len (addresses));
- /* Try address only mapping */
- m = nat44_ed_sm_i2o_lookup (sm, match_addr, 0, sm->inside_fib_index,
- 0);
- if (m)
- return m;
- }
- if (sm->outside_fib_index != match_fib_index)
- {
- m = nat44_ed_sm_i2o_lookup (sm, match_addr, match_port,
- sm->outside_fib_index, match_protocol);
- if (m)
- return m;
+ a = addresses + address_index;
- /* Try address only mapping */
- m = nat44_ed_sm_i2o_lookup (sm, match_addr, 0, sm->outside_fib_index,
- 0);
- if (m)
- return m;
- }
- }
- else
+ switch (protocol)
{
- m =
- nat44_ed_sm_o2i_lookup (sm, match_addr, match_port, 0, match_protocol);
- if (m)
- return m;
-
- /* Try address only mapping */
- m = nat44_ed_sm_o2i_lookup (sm, match_addr, 0, 0, 0);
- if (m)
- return m;
+#define _(N, i, n, s) \
+ case NAT_PROTOCOL_##N: \
+ ASSERT (a->busy_##n##_port_refcounts[port_host_byte_order] >= 1); \
+ --a->busy_##n##_port_refcounts[port_host_byte_order]; \
+ a->busy_##n##_ports--; \
+ a->busy_##n##_ports_per_thread[thread_index]--; \
+ break;
+ foreach_nat_protocol
+#undef _
+ default : nat_elog_info (sm, "unknown protocol");
+ return;
}
- return 0;
}
int
snat_static_mapping_match (vlib_main_t *vm, snat_main_t *sm,
ip4_address_t match_addr, u16 match_port,
- u32 match_fib_index, ip_protocol_t match_protocol,
+ u32 match_fib_index, nat_protocol_t match_protocol,
ip4_address_t *mapping_addr, u16 *mapping_port,
- u32 *mapping_fib_index, int by_external,
+ u32 *mapping_fib_index, u8 by_external,
u8 *is_addr_only, twice_nat_type_t *twice_nat,
lb_nat_type_t *lb, ip4_address_t *ext_host_addr,
u8 *is_identity_nat, snat_static_mapping_t **out)
{
+ clib_bihash_kv_8_8_t kv, value;
+ clib_bihash_8_8_t *mapping_hash;
snat_static_mapping_t *m;
u32 rand, lo = 0, hi, mid, *tmp = 0, i;
nat44_lb_addr_port_t *local;
u8 backend_index;
- m = nat44_ed_sm_match (sm, match_addr, match_port, match_fib_index,
- match_protocol, by_external);
- if (!m)
+ if (!by_external)
{
- return 1;
+ mapping_hash = &sm->static_mapping_by_local;
+ init_nat_k (&kv, match_addr, match_port, match_fib_index,
+ match_protocol);
+ if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
+ {
+ /* Try address only mapping */
+ init_nat_k (&kv, match_addr, 0, match_fib_index, 0);
+ if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
+ return 1;
+ }
}
+ else
+ {
+ mapping_hash = &sm->static_mapping_by_external;
+ init_nat_k (&kv, match_addr, match_port, 0, match_protocol);
+ if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
+ {
+ /* Try address only mapping */
+ init_nat_k (&kv, match_addr, 0, 0, 0);
+ if (clib_bihash_search_8_8 (mapping_hash, &kv, &value))
+ return 1;
+ }
+ }
+
+ m = pool_elt_at_index (sm->static_mappings, value.value);
if (by_external)
{
b, ip, &lookup_saddr, &lookup_sport, &lookup_daddr,
&lookup_dport, &lookup_protocol))
{
- init_ed_k (&kv16, lookup_saddr.as_u32, lookup_sport,
- lookup_daddr.as_u32, lookup_dport, rx_fib_index,
- lookup_protocol);
+ init_ed_k (&kv16, lookup_saddr, lookup_sport, lookup_daddr,
+ lookup_dport, rx_fib_index, lookup_protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16))
{
next_worker_index = ed_value_get_thread_index (&value16);
}
}
- init_ed_k (&kv16, ip->src_address.as_u32,
- vnet_buffer (b)->ip.reass.l4_src_port, ip->dst_address.as_u32,
- vnet_buffer (b)->ip.reass.l4_dst_port, fib_index,
- ip->protocol);
+ init_ed_k (&kv16, ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
+ ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port,
+ fib_index, ip->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16))
{
}
// dst NAT
- init_ed_k (&kv16, ip->dst_address.as_u32,
- vnet_buffer (b)->ip.reass.l4_dst_port, ip->src_address.as_u32,
- vnet_buffer (b)->ip.reass.l4_src_port, rx_fib_index,
- ip->protocol);
+ init_ed_k (&kv16, ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port,
+ ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
+ rx_fib_index, ip->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16))
{
next_worker_index = ed_value_get_thread_index (&value16);
u32 rx_fib_index, u8 is_output)
{
snat_main_t *sm = &snat_main;
+ clib_bihash_kv_8_8_t kv, value;
clib_bihash_kv_16_8_t kv16, value16;
- u8 proto, next_worker_index = 0;
+ u32 proto, next_worker_index = 0;
u16 port;
snat_static_mapping_t *m;
u32 hash;
- proto = ip->protocol;
+ proto = ip_proto_to_nat_proto (ip->protocol);
- if (PREDICT_FALSE (IP_PROTOCOL_ICMP == proto))
+ if (PREDICT_FALSE (proto == NAT_PROTOCOL_ICMP))
{
ip4_address_t lookup_saddr, lookup_daddr;
u16 lookup_sport, lookup_dport;
b, ip, &lookup_saddr, &lookup_sport, &lookup_daddr, &lookup_dport,
&lookup_protocol))
{
- init_ed_k (&kv16, lookup_saddr.as_u32, lookup_sport,
- lookup_daddr.as_u32, lookup_dport, rx_fib_index,
- lookup_protocol);
+ init_ed_k (&kv16, lookup_saddr, lookup_sport, lookup_daddr,
+ lookup_dport, rx_fib_index, lookup_protocol);
if (PREDICT_TRUE (
!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16)))
{
}
}
- init_ed_k (&kv16, ip->src_address.as_u32,
- vnet_buffer (b)->ip.reass.l4_src_port, ip->dst_address.as_u32,
- vnet_buffer (b)->ip.reass.l4_dst_port, rx_fib_index,
- ip->protocol);
+ init_ed_k (&kv16, ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
+ ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port,
+ rx_fib_index, ip->protocol);
if (PREDICT_TRUE (
!clib_bihash_search_16_8 (&sm->flow_hash, &kv16, &value16)))
/* first try static mappings without port */
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
- m = nat44_ed_sm_o2i_lookup (sm, ip->dst_address, 0, 0, proto);
- if (m)
+ init_nat_k (&kv, ip->dst_address, 0, 0, 0);
+ if (!clib_bihash_search_8_8
+ (&sm->static_mapping_by_external, &kv, &value))
{
- {
- next_worker_index = m->workers[0];
- goto done;
- }
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+ next_worker_index = m->workers[0];
+ goto done;
}
}
/* unknown protocol */
- if (PREDICT_FALSE (nat44_ed_is_unk_proto (proto)))
+ if (PREDICT_FALSE (proto == NAT_PROTOCOL_OTHER))
{
/* use current thread */
next_worker_index = vlib_get_thread_index ();
{
/* if error message, then it's not fragmented and we can access it */
ip4_header_t *inner_ip = (ip4_header_t *) (echo + 1);
- proto = inner_ip->protocol;
+ proto = ip_proto_to_nat_proto (inner_ip->protocol);
void *l4_header = ip4_next_header (inner_ip);
switch (proto)
{
- case IP_PROTOCOL_ICMP:
+ case NAT_PROTOCOL_ICMP:
icmp = (icmp46_header_t *) l4_header;
echo = (icmp_echo_header_t *) (icmp + 1);
port = echo->identifier;
break;
- case IP_PROTOCOL_UDP:
- /* breakthrough */
- case IP_PROTOCOL_TCP:
+ case NAT_PROTOCOL_UDP:
+ case NAT_PROTOCOL_TCP:
port = ((tcp_udp_header_t *) l4_header)->src_port;
break;
default:
/* try static mappings with port */
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
- m = nat44_ed_sm_o2i_lookup (sm, ip->dst_address, port, 0, proto);
- if (m)
+ init_nat_k (&kv, ip->dst_address, port, 0, proto);
+ if (!clib_bihash_search_8_8
+ (&sm->static_mapping_by_external, &kv, &value))
{
+ m = pool_elt_at_index (sm->static_mappings, value.value);
if (!is_sm_lb (m->flags))
{
next_worker_index = m->workers[0];
{
snat_main_t *sm = &snat_main;
snat_main_per_thread_data_t *tsm;
+ u32 static_mapping_buckets = 1024;
+ u32 static_mapping_memory_size = 64 << 20;
reinit_ed_flow_hash ();
+ clib_bihash_init_8_8 (&sm->static_mapping_by_local,
+ "static_mapping_by_local", static_mapping_buckets,
+ static_mapping_memory_size);
+ clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_local,
+ format_static_mapping_kvp);
+
+ clib_bihash_init_8_8 (&sm->static_mapping_by_external,
+ "static_mapping_by_external", static_mapping_buckets,
+ static_mapping_memory_size);
+ clib_bihash_set_kvp_format_fn_8_8 (&sm->static_mapping_by_external,
+ format_static_mapping_kvp);
+
if (sm->pat)
{
vec_foreach (tsm, sm->per_thread_data)
pool_free (sm->static_mappings);
clib_bihash_free_16_8 (&sm->flow_hash);
+ clib_bihash_free_8_8 (&sm->static_mapping_by_local);
+ clib_bihash_free_8_8 (&sm->static_mapping_by_external);
if (sm->pat)
{
ip4_main_t *im, uword opaque, u32 sw_if_index, ip4_address_t *address,
u32 address_length, u32 if_address_index, u32 is_delete)
{
+ clib_bihash_kv_8_8_t kv, value;
snat_static_map_resolve_t *rp;
snat_main_t *sm = &snat_main;
snat_static_mapping_t *m;
return;
}
- m = nat44_ed_sm_o2i_lookup (sm, *address, rp->addr_only ? 0 : rp->e_port, 0,
- rp->proto);
+ init_nat_k (&kv, *address, rp->addr_only ? 0 : rp->e_port,
+ sm->outside_fib_index, rp->addr_only ? 0 : rp->proto);
+
+ if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
+ {
+ m = 0;
+ }
+ else
+ {
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+ }
if (is_delete)
{
else
tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers);
- init_ed_k (&kv, addr->as_u32, port, eh_addr->as_u32, eh_port, fib_index,
- proto);
+ init_ed_k (&kv, *addr, port, *eh_addr, eh_port, fib_index, proto);
if (clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
{
return VNET_API_ERROR_NO_SUCH_ENTRY;
if (pool_is_free_index (tsm->sessions, ed_value_get_session_index (&value)))
return VNET_API_ERROR_UNSPECIFIED;
s = pool_elt_at_index (tsm->sessions, ed_value_get_session_index (&value));
- nat44_ed_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
+ nat_free_session_data (sm, s, tsm - sm->per_thread_data, 0);
nat_ed_session_delete (sm, s, tsm - sm->per_thread_data, 1);
return 0;
}
static_always_inline void
nat_6t_flow_ip4_translate (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip,
- nat_6t_flow_t *f, ip_protocol_t proto,
+ nat_6t_flow_t *f, nat_protocol_t proto,
int is_icmp_inner_ip4, int skip_saddr_rewrite)
{
udp_header_t *udp = ip4_next_header (ip);
tcp_header_t *tcp = (tcp_header_t *) udp;
- if ((IP_PROTOCOL_TCP == proto || IP_PROTOCOL_UDP == proto) &&
+ if ((NAT_PROTOCOL_TCP == proto || NAT_PROTOCOL_UDP == proto) &&
!vnet_buffer (b)->ip.reass.is_non_first_fragment)
{
if (!is_icmp_inner_ip4)
udp->dst_port = f->rewrite.sport;
}
- if (IP_PROTOCOL_TCP == proto)
+ if (NAT_PROTOCOL_TCP == proto)
{
ip_csum_t tcp_sum = tcp->checksum;
tcp_sum = ip_csum_sub_even (tcp_sum, f->l3_csum_delta);
mss_clamping (sm->mss_clamping, tcp, &tcp_sum);
tcp->checksum = ip_csum_fold (tcp_sum);
}
- else if (IP_PROTOCOL_UDP == proto && udp->checksum)
+ else if (proto == NAT_PROTOCOL_UDP && udp->checksum)
{
ip_csum_t udp_sum = udp->checksum;
udp_sum = ip_csum_sub_even (udp_sum, f->l3_csum_delta);
return NAT_ED_TRNSL_ERR_INNER_IP_CORRUPT;
}
- ip_protocol_t inner_proto = inner_ip->protocol;
+ nat_protocol_t inner_proto =
+ ip_proto_to_nat_proto (inner_ip->protocol);
ip_csum_t old_icmp_sum = icmp->checksum;
ip_csum_t old_inner_ip_sum = inner_ip->checksum;
switch (inner_proto)
{
- case IP_PROTOCOL_UDP:
+ case NAT_PROTOCOL_UDP:
udp = (udp_header_t *) (inner_ip + 1);
if (!it_fits (vm, b, udp, sizeof (*udp)))
{
new_icmp_sum = ip_csum_fold (new_icmp_sum);
icmp->checksum = new_icmp_sum;
break;
- case IP_PROTOCOL_TCP:
+ case NAT_PROTOCOL_TCP:
tcp = (tcp_header_t *) (inner_ip + 1);
if (!it_fits (vm, b, tcp, sizeof (*tcp)))
{
new_icmp_sum = ip_csum_fold (new_icmp_sum);
icmp->checksum = new_icmp_sum;
break;
- case IP_PROTOCOL_ICMP:
+ case NAT_PROTOCOL_ICMP:
if (f->ops & NAT_FLOW_OP_ICMP_ID_REWRITE)
{
icmp46_header_t *inner_icmp = ip4_next_header (inner_ip);
static_always_inline nat_translation_error_e
nat_6t_flow_buf_translate (vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b,
ip4_header_t *ip, nat_6t_flow_t *f,
- ip_protocol_t proto, int is_output_feature,
+ nat_protocol_t proto, int is_output_feature,
int is_i2o)
{
if (!is_output_feature && f->ops & NAT_FLOW_OP_TXFIB_REWRITE)
vnet_buffer (b)->sw_if_index[VLIB_TX] = f->rewrite.fib_index;
}
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == proto)
{
if (ip->src_address.as_u32 != f->rewrite.saddr.as_u32)
{
nat_translation_error_e
nat_6t_flow_buf_translate_i2o (vlib_main_t *vm, snat_main_t *sm,
vlib_buffer_t *b, ip4_header_t *ip,
- nat_6t_flow_t *f, ip_protocol_t proto,
+ nat_6t_flow_t *f, nat_protocol_t proto,
int is_output_feature)
{
return nat_6t_flow_buf_translate (vm, sm, b, ip, f, proto, is_output_feature,
nat_translation_error_e
nat_6t_flow_buf_translate_o2i (vlib_main_t *vm, snat_main_t *sm,
vlib_buffer_t *b, ip4_header_t *ip,
- nat_6t_flow_t *f, ip_protocol_t proto,
+ nat_6t_flow_t *f, nat_protocol_t proto,
int is_output_feature)
{
return nat_6t_flow_buf_translate (vm, sm, b, ip, f, proto, is_output_feature,
return s;
}
-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, u8 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", 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, u8 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, u8 proto,
- u8 is_twicenat)
-{
- nat_syslog_nat44_sess (ssubix, sfibix, isaddr, isport, xsaddr, xsport,
- idaddr, idport, xdaddr, xdport, proto, 0,
- is_twicenat);
-}
-
/*
* fd.io coding-style-patch-verification: ON
*
/* default number of worker handoff frame queue elements */
#define NAT_FQ_NELTS_DEFAULT 64
-/* number of attempts to get a port for ED overloading algorithm, if rolling
- * a dice this many times doesn't produce a free port, it's treated
- * as if there were no free ports available to conserve resources */
-#define ED_PORT_ALLOC_ATTEMPTS (10)
-
/* NAT buffer flags */
#define SNAT_FLAG_HAIRPINNING (1 << 0)
/* Session flags */
#define SNAT_SESSION_FLAG_STATIC_MAPPING (1 << 0)
+#define SNAT_SESSION_FLAG_UNKNOWN_PROTO (1 << 1)
#define SNAT_SESSION_FLAG_LOAD_BALANCING (1 << 2)
#define SNAT_SESSION_FLAG_TWICE_NAT (1 << 3)
#define SNAT_SESSION_FLAG_ENDPOINT_DEPENDENT (1 << 4)
u16 port;
} in2out;
- ip_protocol_t proto;
+ nat_protocol_t nat_proto;
nat_6t_flow_t i2o;
nat_6t_flow_t o2i;
{
ip4_address_t addr;
u32 fib_index;
+#define _(N, i, n, s) \
+ u32 busy_##n##_ports; \
+ u32 * busy_##n##_ports_per_thread; \
+ u32 busy_##n##_port_refcounts[65535];
+ foreach_nat_protocol
+#undef _
} snat_address_t;
typedef struct
u32 vrf_id;
u32 fib_index;
/* protocol */
- ip_protocol_t proto;
+ nat_protocol_t proto;
/* 0 = disabled, otherwise client IP affinity sticky time in seconds */
u32 affinity;
/* worker threads used by backends/local host */
u16 e_port;
u32 sw_if_index;
u32 vrf_id;
- ip_protocol_t proto;
+ nat_protocol_t proto;
u32 flags;
int addr_only;
int twice_nat;
/* Return worker thread index for given packet */
/* NAT address and port allocation function */
-typedef int (nat_alloc_out_addr_and_port_function_t) (
- snat_address_t *addresses, u32 fib_index, u32 thread_index,
- ip_protocol_t proto, ip4_address_t *addr, u16 *port, u16 port_per_thread,
- u32 snat_thread_index);
+typedef int (nat_alloc_out_addr_and_port_function_t) (snat_address_t *
+ addresses,
+ u32 fib_index,
+ u32 thread_index,
+ nat_protocol_t proto,
+ ip4_address_t * addr,
+ u16 * port,
+ u16 port_per_thread,
+ u32 snat_thread_index);
typedef struct snat_main_s
{
/* Per thread data */
snat_main_per_thread_data_t *per_thread_data;
+ /* Find a static mapping by local */
+ clib_bihash_8_8_t static_mapping_by_local;
+
+ /* Find a static mapping by external */
+ clib_bihash_8_8_t static_mapping_by_external;
+
/* Static mapping pool */
snat_static_mapping_t *static_mappings;
format_function_t format_snat_static_mapping;
format_function_t format_snat_static_map_to_resolve;
format_function_t format_snat_session;
+format_function_t format_snat_key;
format_function_t format_static_mapping_key;
+format_function_t format_nat_protocol;
format_function_t format_nat_addr_and_port_alloc_alg;
+/* unformat functions */
+unformat_function_t unformat_nat_protocol;
/** \brief Check if SNAT session is created from static mapping.
@param s SNAT session
return s->flags & SNAT_SESSION_FLAG_STATIC_MAPPING;
}
+/** \brief Check if SNAT session for unknown protocol.
+ @param s SNAT session
+ @return true if SNAT session for unknown protocol otherwise 0
+*/
+always_inline bool
+snat_is_unk_proto_session (snat_session_t *s)
+{
+ return s->flags & SNAT_SESSION_FLAG_UNKNOWN_PROTO;
+}
+
/** \brief Check if NAT session is twice NAT.
@param s NAT session
@return true if NAT session is twice NAT
int nat44_ed_del_interface_address (u32 sw_if_index, u8 twice_nat);
int nat44_ed_add_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
- u16 l_port, u16 e_port, ip_protocol_t proto,
+ u16 l_port, u16 e_port, nat_protocol_t proto,
u32 vrf_id, u32 sw_if_index, u32 flags,
ip4_address_t pool_addr, u8 *tag);
int nat44_ed_del_static_mapping (ip4_address_t l_addr, ip4_address_t e_addr,
- u16 l_port, u16 e_port, ip_protocol_t proto,
+ u16 l_port, u16 e_port, nat_protocol_t proto,
u32 vrf_id, u32 sw_if_index, u32 flags);
int nat44_ed_add_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
- ip_protocol_t proto,
+ nat_protocol_t proto,
nat44_lb_addr_port_t *locals, u32 flags,
u8 *tag, u32 affinity);
int nat44_ed_del_lb_static_mapping (ip4_address_t e_addr, u16 e_port,
- ip_protocol_t proto, u32 flags);
+ nat_protocol_t proto, u32 flags);
int nat44_ed_add_del_lb_static_mapping_local (ip4_address_t e_addr, u16 e_port,
ip4_address_t l_addr, u16 l_port,
- ip_protocol_t proto, u32 vrf_id,
+ nat_protocol_t proto, u32 vrf_id,
u8 probability, u8 is_add);
/**
ip4_address_t *eh_addr, u16 eh_port, u8 proto,
u32 vrf_id, int is_in);
-void nat44_ed_free_session_data (snat_main_t *sm, snat_session_t *s,
- u32 thread_index, u8 is_ha);
+/**
+ * @brief Free NAT44 session data (lookup keys, external address port)
+ *
+ * @param sm snat global configuration data
+ * @param s NAT session
+ * @param thread_index thread index
+ * @param is_ha is HA event
+ */
+void nat_free_session_data (snat_main_t * sm, snat_session_t * s,
+ u32 thread_index, u8 is_ha);
/**
* @brief Set NAT44 session limit (session limit, vrf id)
*/
int nat44_update_session_limit (u32 session_limit, u32 vrf_id);
+/**
+ * @brief Free outside address and port pair
+ *
+ * @param addresses vector of outside addresses
+ * @param thread_index thread index
+ * @param key address, port and protocol
+ */
+void
+snat_free_outside_address_and_port (snat_address_t * addresses,
+ u32 thread_index,
+ ip4_address_t * addr,
+ u16 port, nat_protocol_t protocol);
+
void expire_per_vrf_sessions (u32 fib_index);
/**
*/
int snat_static_mapping_match (
vlib_main_t *vm, snat_main_t *sm, ip4_address_t match_addr, u16 match_port,
- u32 match_fib_index, ip_protocol_t match_protocol,
+ u32 match_fib_index, nat_protocol_t match_protocol,
ip4_address_t *mapping_addr, u16 *mapping_port, u32 *mapping_fib_index,
- int by_external, u8 *is_addr_only, twice_nat_type_t *twice_nat,
+ u8 by_external, u8 *is_addr_only, twice_nat_type_t *twice_nat,
lb_nat_type_t *lb, ip4_address_t *ext_host_addr, u8 *is_identity_nat,
snat_static_mapping_t **out);
nat_translation_error_e nat_6t_flow_buf_translate_i2o (
vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip,
- nat_6t_flow_t *f, ip_protocol_t proto, int is_output_feature);
+ nat_6t_flow_t *f, nat_protocol_t proto, int is_output_feature);
nat_translation_error_e nat_6t_flow_buf_translate_o2i (
vlib_main_t *vm, snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip,
- nat_6t_flow_t *f, ip_protocol_t proto, int is_output_feature);
+ nat_6t_flow_t *f, nat_protocol_t proto, int is_output_feature);
void nat_6t_l3_l4_csum_calc (nat_6t_flow_t *f);
format_function_t format_nat_6t_flow;
format_function_t format_ed_session_kvp;
-snat_static_mapping_t *nat44_ed_sm_i2o_lookup (snat_main_t *sm,
- ip4_address_t addr, u16 port,
- u32 fib_index, u8 proto);
-
-snat_static_mapping_t *nat44_ed_sm_o2i_lookup (snat_main_t *sm,
- ip4_address_t addr, u16 port,
- u32 fib_index, u8 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, u8 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, u8 proto,
- u8 is_twicenat);
-
#endif /* __included_nat44_ed_h__ */
/*
* fd.io coding-style-patch-verification: ON
k.as_u64[1] = v->key[1];
s = format (s, "client %U backend %U:%d proto %U index %llu",
- format_ip4_address, &k.client_addr, format_ip4_address,
- &k.service_addr, clib_net_to_host_u16 (k.service_port),
- format_ip_protocol, k.proto);
+ format_ip4_address, &k.client_addr,
+ format_ip4_address, &k.service_addr,
+ clib_net_to_host_u16 (k.service_port),
+ format_nat_protocol, k.proto);
return s;
}
ip4_address_t l_addr, e_addr, pool_addr = { 0 };
u32 sw_if_index, flags = 0, vrf_id;
u16 l_port = 0, e_port = 0;
- ip_protocol_t proto = 0;
+ nat_protocol_t proto = 0;
u8 *tag = 0;
memcpy (&l_addr.as_u8, mp->local_ip_address, 4);
{
l_port = mp->local_port;
e_port = mp->external_port;
- proto = mp->protocol;
+ proto = ip_proto_to_nat_proto (mp->protocol);
}
if (mp->flags & NAT_API_IS_TWICE_NAT)
ip4_address_t l_addr, e_addr, pool_addr;
u32 sw_if_index, flags = 0, vrf_id;
u16 l_port = 0, e_port = 0;
- ip_protocol_t proto;
+ nat_protocol_t proto;
u8 *tag = 0;
memcpy (&l_addr.as_u8, mp->local_ip_address, 4);
memcpy (&e_addr.as_u8, mp->external_ip_address, 4);
}
- proto = mp->protocol;
+ proto = ip_proto_to_nat_proto (mp->protocol);
vrf_id = clib_net_to_host_u32 (mp->vrf_id);
if (mp->is_add)
}
else
{
- rmp->protocol = m->proto;
+ rmp->protocol = nat_proto_to_ip_proto (m->proto);
rmp->external_port = m->external_port;
rmp->local_port = m->local_port;
}
}
else
{
- rmp->protocol = m->proto;
+ rmp->protocol = nat_proto_to_ip_proto (m->proto);
rmp->external_port = m->e_port;
rmp->local_port = m->l_port;
}
ip4_address_t addr, pool_addr = { 0 };
u32 sw_if_index, flags, vrf_id;
- ip_protocol_t proto = 0;
+ nat_protocol_t proto = 0;
u16 port = 0;
u8 *tag = 0;
else
{
port = mp->port;
- proto = mp->protocol;
+ proto = ip_proto_to_nat_proto (mp->protocol);
}
sw_if_index = clib_net_to_host_u32 (mp->sw_if_index);
rmp->port = m->local_port;
rmp->sw_if_index = ~0;
rmp->vrf_id = htonl (local->vrf_id);
- rmp->protocol = m->proto;
+ rmp->protocol = nat_proto_to_ip_proto (m->proto);
rmp->context = context;
if (m->tag)
strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
rmp->port = m->l_port;
rmp->sw_if_index = htonl (m->sw_if_index);
rmp->vrf_id = htonl (m->vrf_id);
- rmp->protocol = m->proto;
+ rmp->protocol = nat_proto_to_ip_proto (m->proto);
rmp->context = context;
if (m->tag)
strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
vl_api_nat44_add_del_lb_static_mapping_reply_t *rmp;
nat44_lb_addr_port_t *locals = 0;
ip4_address_t e_addr;
- ip_protocol_t proto;
+ nat_protocol_t proto;
u32 flags = 0;
u8 *tag = 0;
int rv = 0;
locals = unformat_nat44_lb_addr_port (mp->locals,
clib_net_to_host_u32 (mp->local_num));
clib_memcpy (&e_addr, mp->external_addr, 4);
- proto = mp->protocol;
+ proto = ip_proto_to_nat_proto (mp->protocol);
if (mp->flags & NAT_API_IS_TWICE_NAT)
{
vl_api_nat44_lb_static_mapping_add_del_local_reply_t *rmp;
int rv = 0;
ip4_address_t e_addr, l_addr;
- ip_protocol_t proto;
+ nat_protocol_t proto;
clib_memcpy (&e_addr, mp->external_addr, 4);
clib_memcpy (&l_addr, mp->local.addr, 4);
- proto = mp->protocol;
+ proto = ip_proto_to_nat_proto (mp->protocol);
rv = nat44_ed_add_del_lb_static_mapping_local (
e_addr, mp->external_port, l_addr, mp->local.port, proto,
clib_memcpy (rmp->external_addr, &(m->external_addr), 4);
rmp->external_port = m->external_port;
- rmp->protocol = m->proto;
+ rmp->protocol = nat_proto_to_ip_proto (m->proto);
rmp->context = context;
if (is_sm_self_twice_nat (m->flags))
rmp->total_bytes = clib_host_to_net_u64 (s->total_bytes);
rmp->total_pkts = ntohl (s->total_pkts);
rmp->context = context;
- rmp->outside_port = s->out2in.port;
- rmp->inside_port = s->in2out.port;
- rmp->protocol = ntohs (s->proto);
- clib_memcpy (rmp->ext_host_address, &s->ext_host_addr, 4);
- rmp->ext_host_port = s->ext_host_port;
- if (nat44_ed_is_twice_nat_session (s))
+ if (snat_is_unk_proto_session (s))
{
- clib_memcpy (rmp->ext_host_nat_address, &s->ext_host_nat_addr, 4);
- rmp->ext_host_nat_port = s->ext_host_nat_port;
+ rmp->outside_port = 0;
+ rmp->inside_port = 0;
+ rmp->protocol = ntohs (s->in2out.port);
}
+ else
+ {
+ rmp->outside_port = s->out2in.port;
+ rmp->inside_port = s->in2out.port;
+ rmp->protocol = ntohs (nat_proto_to_ip_proto (s->nat_proto));
+ }
+ clib_memcpy (rmp->ext_host_address, &s->ext_host_addr, 4);
+ rmp->ext_host_port = s->ext_host_port;
+ if (nat44_ed_is_twice_nat_session (s))
+ {
+ clib_memcpy (rmp->ext_host_nat_address, &s->ext_host_nat_addr, 4);
+ rmp->ext_host_nat_port = s->ext_host_nat_port;
+ }
vl_api_send_msg (reg, (u8 *) rmp);
}
u32 next0 = NAT_NEXT_IN2OUT_CLASSIFY;
ip4_header_t *ip0;
snat_address_t *ap;
+ clib_bihash_kv_8_8_t kv0, value0;
/* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
+ init_nat_k (&kv0, ip0->dst_address, 0, 0, 0);
/* try to classify the fragment based on IP header alone */
- m = nat44_ed_sm_o2i_lookup (sm, ip0->dst_address, 0, 0, 0);
- if (m)
+ if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external,
+ &kv0, &value0))
{
+ m = pool_elt_at_index (sm->static_mappings, value0.value);
if (m->local_addr.as_u32 != m->external_addr.as_u32)
next0 = NAT_NEXT_OUT2IN_CLASSIFY;
goto enqueue0;
}
- m = nat44_ed_sm_o2i_lookup (
- sm, ip0->dst_address, vnet_buffer (b0)->ip.reass.l4_dst_port,
- 0, ip0->protocol);
- if (m)
+ init_nat_k (&kv0, ip0->dst_address,
+ vnet_buffer (b0)->ip.reass.l4_dst_port, 0,
+ ip_proto_to_nat_proto (ip0->protocol));
+ if (!clib_bihash_search_8_8
+ (&sm->static_mapping_by_external, &kv0, &value0))
{
+ m = pool_elt_at_index (sm->static_mappings, value0.value);
if (m->local_addr.as_u32 != m->external_addr.as_u32)
next0 = NAT_NEXT_OUT2IN_CLASSIFY;
}
u32 sw_if_index0, rx_fib_index0;
ip4_header_t *ip0;
snat_address_t *ap;
+ clib_bihash_kv_8_8_t kv0, value0;
clib_bihash_kv_16_8_t ed_kv0, ed_value0;
/* speculatively enqueue b0 to the current next frame */
rx_fib_index0 =
fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
sw_if_index0);
- init_ed_k (&ed_kv0, ip0->src_address.as_u32,
+ init_ed_k (&ed_kv0, ip0->src_address,
vnet_buffer (b0)->ip.reass.l4_src_port,
- ip0->dst_address.as_u32,
- vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0,
- ip0->protocol);
+ ip0->dst_address,
+ vnet_buffer (b0)->ip.reass.l4_dst_port,
+ rx_fib_index0, ip0->protocol);
/* process whole packet */
if (!clib_bihash_search_16_8 (&sm->flow_hash, &ed_kv0,
&ed_value0))
if (PREDICT_FALSE (pool_elts (sm->static_mappings)))
{
+ init_nat_k (&kv0, ip0->dst_address, 0, 0, 0);
/* try to classify the fragment based on IP header alone */
- m = nat44_ed_sm_o2i_lookup (sm, ip0->dst_address, 0, 0, 0);
- if (m)
+ if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external,
+ &kv0, &value0))
{
+ m = pool_elt_at_index (sm->static_mappings, value0.value);
if (m->local_addr.as_u32 != m->external_addr.as_u32)
next0 = NAT_NEXT_OUT2IN_ED_FAST_PATH;
goto enqueue0;
}
- m = nat44_ed_sm_o2i_lookup (
- sm, ip0->dst_address, vnet_buffer (b0)->ip.reass.l4_dst_port,
- 0, ip0->protocol);
- if (m)
+ init_nat_k (&kv0, ip0->dst_address,
+ vnet_buffer (b0)->ip.reass.l4_dst_port, 0,
+ ip_proto_to_nat_proto (ip0->protocol));
+ if (!clib_bihash_search_8_8
+ (&sm->static_mapping_by_external, &kv0, &value0))
{
+ m = pool_elt_at_index (sm->static_mappings, value0.value);
if (m->local_addr.as_u32 != m->external_addr.as_u32)
next0 = NAT_NEXT_OUT2IN_ED_FAST_PATH;
}
else if (unformat (input, "verbose"))
verbose = 2;
- vlib_cli_output (vm, "%U", format_bihash_16_8, &sm->flow_hash, verbose);
+ vlib_cli_output (vm, "%U", format_bihash_8_8, &sm->static_mapping_by_local,
+ verbose);
+ vlib_cli_output (vm, "%U",
+ format_bihash_8_8, &sm->static_mapping_by_external,
+ verbose);
+ vlib_cli_output (vm, "%U", format_bihash_16_8, &sm->flow_hash, verbose);
vec_foreach_index (i, sm->per_thread_data)
{
vlib_cli_output (vm, "-------- thread %d %s --------\n",
vlib_cli_output (vm, "%U", format_bihash_16_8, &sm->flow_hash, verbose);
}
- vlib_cli_output (vm, "%U", format_bihash_16_8, &nam->affinity_hash, verbose);
+ vlib_cli_output (vm, "%U", format_bihash_16_8, &nam->affinity_hash,
+ verbose);
vlib_cli_output (vm, "-------- hash table parameters --------\n");
vlib_cli_output (vm, "translation buckets: %u", sm->translation_buckets);
u32 udp_sessions = 0;
u32 tcp_sessions = 0;
u32 icmp_sessions = 0;
- u32 other_sessions = 0;
u32 timed_out = 0;
u32 transitory = 0;
if (now >= sess_timeout_time)
timed_out++;
- switch (s->proto)
- {
- case IP_PROTOCOL_ICMP:
- icmp_sessions++;
- break;
- case IP_PROTOCOL_TCP:
- tcp_sessions++;
- if (s->state)
- {
- if (s->tcp_closed_timestamp)
- {
- if (now >= s->tcp_closed_timestamp)
- {
- ++transitory_closed;
- }
- else
- {
- ++transitory_wait_closed;
- }
- }
- transitory++;
- }
- else
- established++;
- break;
- case IP_PROTOCOL_UDP:
- udp_sessions++;
- break;
- default:
- ++other_sessions;
- break;
- }
- }
- nat44_show_lru_summary (vm, tsm, now, sess_timeout_time);
- count += pool_elts (tsm->sessions);
- }
+ switch (s->nat_proto)
+ {
+ case NAT_PROTOCOL_ICMP:
+ icmp_sessions++;
+ break;
+ case NAT_PROTOCOL_TCP:
+ tcp_sessions++;
+ if (s->state)
+ {
+ if (s->tcp_closed_timestamp)
+ {
+ if (now >= s->tcp_closed_timestamp)
+ {
+ ++transitory_closed;
+ }
+ else
+ {
+ ++transitory_wait_closed;
+ }
+ }
+ transitory++;
+ }
+ else
+ established++;
+ break;
+ case NAT_PROTOCOL_UDP:
+ default:
+ udp_sessions++;
+ break;
+ }
+ }
+ nat44_show_lru_summary (vm, tsm, now, sess_timeout_time);
+ count += pool_elts (tsm->sessions);
+ }
}
else
{
if (now >= sess_timeout_time)
timed_out++;
- switch (s->proto)
- {
- case IP_PROTOCOL_ICMP:
- icmp_sessions++;
- break;
- case IP_PROTOCOL_TCP:
- tcp_sessions++;
- if (s->state)
- {
- if (s->tcp_closed_timestamp)
- {
- if (now >= s->tcp_closed_timestamp)
- {
- ++transitory_closed;
- }
- else
- {
- ++transitory_wait_closed;
- }
- }
- transitory++;
- }
- else
- established++;
- break;
- case IP_PROTOCOL_UDP:
- udp_sessions++;
- break;
- default:
- ++other_sessions;
- break;
- }
+ switch (s->nat_proto)
+ {
+ case NAT_PROTOCOL_ICMP:
+ icmp_sessions++;
+ break;
+ case NAT_PROTOCOL_TCP:
+ tcp_sessions++;
+ if (s->state)
+ {
+ if (s->tcp_closed_timestamp)
+ {
+ if (now >= s->tcp_closed_timestamp)
+ {
+ ++transitory_closed;
+ }
+ else
+ {
+ ++transitory_wait_closed;
+ }
+ }
+ transitory++;
+ }
+ else
+ established++;
+ break;
+ case NAT_PROTOCOL_UDP:
+ default:
+ udp_sessions++;
+ break;
+ }
}
nat44_show_lru_summary (vm, tsm, now, sess_timeout_time);
count = pool_elts (tsm->sessions);
transitory_closed);
vlib_cli_output (vm, "total udp sessions: %u", udp_sessions);
vlib_cli_output (vm, "total icmp sessions: %u", icmp_sessions);
- vlib_cli_output (vm, "total other sessions: %u", other_sessions);
return 0;
}
fib_table_get(ap->fib_index, FIB_PROTOCOL_IP4)->ft_table_id);
else
vlib_cli_output (vm, " tenant VRF independent");
+ #define _(N, i, n, s) \
+ vlib_cli_output (vm, " %d busy %s ports", ap->busy_##n##_ports, s);
+ foreach_nat_protocol
+ #undef _
}
vlib_cli_output (vm, "NAT44 twice-nat pool addresses:");
vec_foreach (ap, sm->twice_nat_addresses)
fib_table_get(ap->fib_index, FIB_PROTOCOL_IP4)->ft_table_id);
else
vlib_cli_output (vm, " tenant VRF independent");
+ #define _(N, i, n, s) \
+ vlib_cli_output (vm, " %d busy %s ports", ap->busy_##n##_ports, s);
+ foreach_nat_protocol
+ #undef _
}
return 0;
}
unformat_input_t _line_input, *line_input = &_line_input;
vnet_main_t *vnm = vnet_get_main ();
clib_error_t *error = 0;
+ int rv;
+
+ nat_protocol_t proto = NAT_PROTOCOL_OTHER;
ip4_address_t l_addr, e_addr, pool_addr;
u32 l_port = 0, e_port = 0, vrf_id = ~0;
u8 l_port_set = 0, e_port_set = 0;
- int is_add = 1, rv;
- u32 flags = 0;
- u32 sw_if_index = ~0;
- ip_protocol_t proto = 0;
+ u32 sw_if_index, flags = 0;
+ int is_add = 1;
if (!unformat_user (input, unformat_line_input, line_input))
return clib_error_return (0, NAT44_ED_EXPECTED_ARGUMENT);
}
else if (unformat (line_input, "vrf %u", &vrf_id))
;
- else if (unformat (line_input, "%U", unformat_ip_protocol, &proto))
+ else if (unformat (line_input, "%U", unformat_nat_protocol, &proto))
;
else if (unformat (line_input, "self-twice-nat"))
{
int rv, is_add = 1, port_set = 0;
u32 sw_if_index, port, flags, vrf_id = ~0;
- ip_protocol_t proto;
+ nat_protocol_t proto;
ip4_address_t addr;
flags = NAT_SM_FLAG_IDENTITY_NAT;
}
else if (unformat (line_input, "vrf %u", &vrf_id))
;
- else if (unformat (line_input, "%U %u", unformat_ip_protocol, &proto,
+ else if (unformat (line_input, "%U %u", unformat_nat_protocol, &proto,
&port))
{
port_set = 1;
ip4_address_t l_addr, e_addr;
u32 l_port = 0, e_port = 0, vrf_id = 0, probability = 0, affinity = 0;
u8 proto_set = 0;
- ip_protocol_t proto;
+ nat_protocol_t proto;
nat44_lb_addr_port_t *locals = 0, local;
int rv, is_add = 1;
u32 flags = 0;
else if (unformat (line_input, "external %U:%u", unformat_ip4_address,
&e_addr, &e_port))
;
- else if (unformat (line_input, "protocol %U", unformat_ip_protocol,
+ else if (unformat (line_input, "protocol %U", unformat_nat_protocol,
&proto))
{
proto_set = 1;
u32 l_port = 0, e_port = 0, vrf_id = 0, probability = 0;
int is_add = 1;
int rv;
- ip_protocol_t proto;
+ nat_protocol_t proto;
u8 proto_set = 0;
/* Get a line of input. */
else if (unformat (line_input, "external %U:%u", unformat_ip4_address,
&e_addr, &e_port))
;
- else if (unformat (line_input, "protocol %U", unformat_ip_protocol,
+ else if (unformat (line_input, "protocol %U", unformat_nat_protocol,
&proto))
proto_set = 1;
else if (unformat (line_input, "del"))
u32 port = 0, eh_port = 0, vrf_id = sm->outside_vrf_id;
clib_error_t *error = 0;
ip4_address_t addr, eh_addr;
- ip_protocol_t proto;
+ nat_protocol_t proto;
int is_in = 0;
int rv;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (line_input, "%U:%u %U", unformat_ip4_address, &addr, &port,
- unformat_ip_protocol, &proto))
+ if (unformat
+ (line_input, "%U:%u %U", unformat_ip4_address, &addr, &port,
+ unformat_nat_protocol, &proto))
;
else if (unformat (line_input, "in"))
{
}
rv = nat44_ed_del_session (sm, &addr, clib_host_to_net_u16 (port), &eh_addr,
- clib_host_to_net_u16 (eh_port), proto, vrf_id,
- is_in);
+ clib_host_to_net_u16 (eh_port),
+ nat_proto_to_ip_proto (proto), vrf_id, is_in);
switch (rv)
{
#include <nat/nat44-ed/nat44_ed.h>
#include <nat/nat44-ed/nat44_ed_inlines.h>
+uword
+unformat_nat_protocol (unformat_input_t * input, va_list * args)
+{
+ u32 *r = va_arg (*args, u32 *);
+
+ if (0);
+#define _(N, i, n, s) else if (unformat (input, s)) *r = NAT_PROTOCOL_##N;
+ foreach_nat_protocol
+#undef _
+ else
+ return 0;
+ return 1;
+}
+
+u8 *
+format_nat_protocol (u8 * s, va_list * args)
+{
+ u32 i = va_arg (*args, u32);
+ u8 *t = 0;
+
+ switch (i)
+ {
+#define _(N, j, n, str) case NAT_PROTOCOL_##N: t = (u8 *) str; break;
+ foreach_nat_protocol
+#undef _
+ default:
+ s = format (s, "unknown");
+ return s;
+ }
+ s = format (s, "%s", t);
+ return s;
+}
+
u8 *
format_nat_addr_and_port_alloc_alg (u8 * s, va_list * args)
{
return s;
}
+u8 *
+format_snat_key (u8 * s, va_list * args)
+{
+ u64 key = va_arg (*args, u64);
+
+ ip4_address_t addr;
+ u16 port;
+ nat_protocol_t protocol;
+ u32 fib_index;
+
+ split_nat_key (key, &addr, &port, &fib_index, &protocol);
+
+ s = format (s, "%U proto %U port %d fib %d",
+ format_ip4_address, &addr,
+ format_nat_protocol, protocol,
+ clib_net_to_host_u16 (port), fib_index);
+ return s;
+}
+
u8 *
format_snat_session_state (u8 * s, va_list * args)
{
va_arg (*args, snat_main_per_thread_data_t *);
snat_session_t *sess = va_arg (*args, snat_session_t *);
- if (nat44_ed_is_unk_proto (sess->proto))
+ if (snat_is_unk_proto_session (sess))
{
s = format (s, " i2o %U proto %u fib %u\n",
format_ip4_address, &sess->in2out.addr,
}
else
{
- s = format (s, " i2o %U proto %U port %d fib %d\n", format_ip4_address,
- &sess->in2out.addr, format_ip_protocol, sess->proto,
+ s = format (s, " i2o %U proto %U port %d fib %d\n",
+ format_ip4_address, &sess->in2out.addr,
+ format_nat_protocol, sess->nat_proto,
clib_net_to_host_u16 (sess->in2out.port),
sess->in2out.fib_index);
s = format (s, " o2i %U proto %U port %d fib %d\n",
- format_ip4_address, &sess->out2in.addr, format_ip_protocol,
- sess->proto, clib_net_to_host_u16 (sess->out2in.port),
+ format_ip4_address, &sess->out2in.addr, format_nat_protocol,
+ sess->nat_proto, clib_net_to_host_u16 (sess->out2in.port),
sess->out2in.fib_index);
}
if (nat44_ed_is_twice_nat_session (sess))
s = format (s, "identity mapping %U",
format_ip4_address, &m->local_addr);
else
- s = format (s, "identity mapping %U %U:%d", format_ip_protocol,
- m->proto, format_ip4_address, &m->local_addr,
+ s = format (s, "identity mapping %U %U:%d",
+ format_nat_protocol, m->proto,
+ format_ip4_address, &m->local_addr,
clib_net_to_host_u16 (m->local_port));
pool_foreach (local, m->locals)
if (is_sm_lb (m->flags))
{
s =
- format (s, "%U external %U:%d %s %s", format_ip_protocol, m->proto,
- format_ip4_address, &m->external_addr,
+ format (s, "%U external %U:%d %s %s", format_nat_protocol,
+ m->proto, format_ip4_address, &m->external_addr,
clib_net_to_host_u16 (m->external_port),
is_sm_twice_nat (m->flags) ?
"twice-nat" :
}
else
s = format (s, "%U local %U:%d external %U:%d vrf %d %s %s",
- format_ip_protocol, m->proto, format_ip4_address,
+ format_nat_protocol, m->proto, format_ip4_address,
&m->local_addr, clib_net_to_host_u16 (m->local_port),
format_ip4_address, &m->external_addr,
clib_net_to_host_u16 (m->external_port), m->vrf_id,
format_ip4_address, &m->l_addr,
format_vnet_sw_if_index_name, vnm, m->sw_if_index, m->vrf_id);
else
- s = format (s, "%U local %U:%d external %U:%d vrf %d", format_ip_protocol,
- m->proto, format_ip4_address, &m->l_addr,
- clib_net_to_host_u16 (m->l_port), format_vnet_sw_if_index_name,
- vnm, m->sw_if_index, clib_net_to_host_u16 (m->e_port),
- m->vrf_id);
+ s = format (s, "%U local %U:%d external %U:%d vrf %d",
+ format_nat_protocol, m->proto,
+ format_ip4_address, &m->l_addr,
+ clib_net_to_host_u16 (m->l_port),
+ format_vnet_sw_if_index_name, vnm, m->sw_if_index,
+ clib_net_to_host_u16 (m->e_port), m->vrf_id);
return s;
}
#include <vnet/udp/udp_local.h>
#include <vppinfra/error.h>
+#include <nat/lib/nat_syslog.h>
#include <nat/lib/nat_inlines.h>
#include <nat/lib/ipfix_logging.h>
#include <nat/nat44-ed/nat44_ed.h>
#include <nat/nat44-ed/nat44_ed_inlines.h>
+/* number of attempts to get a port for ED overloading algorithm, if rolling
+ * a dice this many times doesn't produce a free port, it's treated
+ * as if there were no free ports available to conserve resources */
+#define ED_PORT_ALLOC_ATTEMPTS (10)
+
static char *nat_in2out_ed_error_strings[] = {
#define _(sym,string) string,
foreach_nat_in2out_ed_error
static int
nat_ed_alloc_addr_and_port_with_snat_address (
- snat_main_t *sm, u8 proto, u32 thread_index, snat_address_t *a,
+ snat_main_t *sm, u32 nat_proto, u32 thread_index, snat_address_t *a,
u16 port_per_thread, u32 snat_thread_index, snat_session_t *s,
ip4_address_t *outside_addr, u16 *outside_port)
{
u16 attempts = ED_PORT_ALLOC_ATTEMPTS;
do
{
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
s->o2i.match.sport = clib_host_to_net_u16 (port);
}
s->o2i.match.dport = clib_host_to_net_u16 (port);
if (0 == nat_ed_ses_o2i_flow_hash_add_del (sm, thread_index, s, 2))
{
+#define _(N, i, n, s) \
+ case NAT_PROTOCOL_##N: \
+ ++a->busy_##n##_port_refcounts[port]; \
+ a->busy_##n##_ports_per_thread[thread_index]++; \
+ a->busy_##n##_ports++; \
+ break;
+ switch (nat_proto)
+ {
+ foreach_nat_protocol;
+ default:
+ nat_elog_info (sm, "unknown protocol");
+ return 1;
+ }
+#undef _
*outside_addr = a->addr;
*outside_port = clib_host_to_net_u16 (port);
return 0;
static int
nat_ed_alloc_addr_and_port (snat_main_t *sm, u32 rx_fib_index, u32 nat_proto,
u32 thread_index, ip4_address_t s_addr,
- u32 snat_thread_index, snat_session_t *s,
- ip4_address_t *outside_addr, u16 *outside_port)
+ u16 port_per_thread, u32 snat_thread_index,
+ snat_session_t *s, ip4_address_t *outside_addr,
+ u16 *outside_port)
{
int i;
snat_address_t *a, *ga = 0;
if (a->fib_index == rx_fib_index)
{
return nat_ed_alloc_addr_and_port_with_snat_address (
- sm, nat_proto, thread_index, a, sm->port_per_thread,
+ sm, nat_proto, thread_index, a, port_per_thread,
snat_thread_index, s, outside_addr, outside_port);
}
else if (a->fib_index == ~0)
if (a->fib_index == rx_fib_index)
{
return nat_ed_alloc_addr_and_port_with_snat_address (
- sm, nat_proto, thread_index, a, sm->port_per_thread,
+ sm, nat_proto, thread_index, a, port_per_thread,
snat_thread_index, s, outside_addr, outside_port);
}
else if (a->fib_index == ~0)
if (ga)
{
return nat_ed_alloc_addr_and_port_with_snat_address (
- sm, nat_proto, thread_index, a, sm->port_per_thread,
- snat_thread_index, s, outside_addr, outside_port);
+ sm, nat_proto, thread_index, a, port_per_thread, snat_thread_index,
+ s, outside_addr, outside_port);
}
}
/* Totally out of translations to use... */
static_always_inline int
nat44_ed_external_sm_lookup (snat_main_t *sm, ip4_address_t match_addr,
- u16 match_port, ip_protocol_t match_protocol,
- ip4_address_t *daddr, u16 *dport)
+ u16 match_port, nat_protocol_t match_protocol,
+ u32 match_fib_index, ip4_address_t *daddr,
+ u16 *dport)
{
- snat_static_mapping_t *m =
- nat44_ed_sm_o2i_lookup (sm, match_addr, match_port, 0, match_protocol);
- if (!m)
+ clib_bihash_kv_8_8_t kv, value;
+ init_nat_k (&kv, match_addr, match_port, match_fib_index, match_protocol);
+ if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
{
/* Try address only mapping */
- m = nat44_ed_sm_o2i_lookup (sm, match_addr, 0, 0, 0);
- if (!m)
+ init_nat_k (&kv, match_addr, 0, 0, 0);
+ if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv,
+ &value))
return 0;
}
+
+ snat_static_mapping_t *m =
+ pool_elt_at_index (sm->static_mappings, value.value);
*daddr = m->local_addr;
if (dport)
{
u32 outside_fib_index;
u8 is_identity_nat = 0;
+ u32 nat_proto = ip_proto_to_nat_proto (proto);
snat_session_t *s = NULL;
lb_nat_type_t lb = 0;
ip4_address_t daddr = r_addr;
u32 sm_fib_index;
/* First try to match static mapping by local address and port */
int is_sm;
- if (snat_static_mapping_match (vm, sm, l_addr, l_port, rx_fib_index, proto,
- &sm_addr, &sm_port, &sm_fib_index, 0, 0, 0,
- &lb, 0, &is_identity_nat, 0))
+ if (snat_static_mapping_match (vm, sm, l_addr, l_port, rx_fib_index,
+ nat_proto, &sm_addr, &sm_port, &sm_fib_index,
+ 0, 0, 0, &lb, 0, &is_identity_nat, 0))
{
is_sm = 0;
}
is_sm = 1;
}
- if (PREDICT_TRUE (proto == IP_PROTOCOL_TCP))
+ if (PREDICT_TRUE (nat_proto == NAT_PROTOCOL_TCP))
{
if (PREDICT_FALSE (!tcp_flags_is_init (
vnet_buffer (b)->ip.reass.icmp_type_or_tcp_flags)))
{
s->in2out.addr = l_addr;
s->in2out.port = l_port;
- s->proto = proto;
+ s->nat_proto = nat_proto;
s->in2out.fib_index = rx_fib_index;
s->out2in.fib_index = outside_fib_index;
outside_port = l_port;
// hairpinning?
- int is_hairpinning = nat44_ed_external_sm_lookup (sm, r_addr, r_port,
- proto, &daddr, &dport);
+ int is_hairpinning = nat44_ed_external_sm_lookup (
+ sm, r_addr, r_port, nat_proto, outside_fib_index, &daddr, &dport);
s->flags |= is_hairpinning * SNAT_SESSION_FLAG_HAIRPINNING;
// destination addr/port updated with real values in
nat_6t_o2i_flow_init (sm, thread_index, s, daddr, dport, daddr, 0,
s->out2in.fib_index, proto);
nat_6t_flow_daddr_rewrite_set (&s->o2i, l_addr.as_u32);
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_flow_icmp_id_rewrite_set (&s->o2i, l_port);
}
}
nat_6t_flow_txfib_rewrite_set (&s->o2i, rx_fib_index);
- if (nat_ed_alloc_addr_and_port (sm, rx_fib_index, proto, thread_index,
- l_addr, tsm->snat_thread_index, s,
- &outside_addr, &outside_port))
+ if (nat_ed_alloc_addr_and_port (
+ sm, rx_fib_index, nat_proto, thread_index, l_addr,
+ sm->port_per_thread, tsm->snat_thread_index, s, &outside_addr,
+ &outside_port))
{
nat_elog_notice (sm, "addresses exhausted");
b->error = node->errors[NAT_IN2OUT_ED_ERROR_OUT_OF_PORTS];
s->out2in.port = outside_port = sm_port;
s->in2out.addr = l_addr;
s->in2out.port = l_port;
- s->proto = proto;
+ s->nat_proto = nat_proto;
s->in2out.fib_index = rx_fib_index;
s->out2in.fib_index = outside_fib_index;
s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
// hairpinning?
- int is_hairpinning = nat44_ed_external_sm_lookup (sm, r_addr, r_port,
- proto, &daddr, &dport);
+ int is_hairpinning = nat44_ed_external_sm_lookup (
+ sm, r_addr, r_port, nat_proto, outside_fib_index, &daddr, &dport);
s->flags |= is_hairpinning * SNAT_SESSION_FLAG_HAIRPINNING;
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_o2i_flow_init (sm, thread_index, s, daddr, sm_port, sm_addr,
sm_port, s->out2in.fib_index, proto);
nat_6t_flow_saddr_rewrite_set (&s->i2o, outside_addr.as_u32);
nat_6t_flow_daddr_rewrite_set (&s->i2o, daddr.as_u32);
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_flow_icmp_id_rewrite_set (&s->i2o, outside_port);
}
}
/* log NAT event */
- nat_ipfix_logging_nat44_ses_create (
- thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32, s->proto,
- s->in2out.port, s->out2in.port, s->in2out.fib_index);
+ nat_ipfix_logging_nat44_ses_create (thread_index,
+ s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->nat_proto,
+ s->in2out.port,
+ s->out2in.port, s->in2out.fib_index);
nat_syslog_nat44_sadd (0, 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->proto, 0);
+ &s->ext_host_addr, s->ext_host_port, s->nat_proto, 0);
per_vrf_sessions_register_session (s, thread_index);
error:
if (s)
{
+ if (!is_sm)
+ {
+ snat_free_outside_address_and_port (sm->addresses, thread_index,
+ &outside_addr, outside_port,
+ nat_proto);
+ }
nat_ed_session_delete (sm, s, thread_index, 1);
}
*sessionp = s = NULL;
{
clib_bihash_kv_16_8_t kv, value;
- init_ed_k (&kv, ip->dst_address.as_u32,
- vnet_buffer (b)->ip.reass.l4_dst_port, ip->src_address.as_u32,
- vnet_buffer (b)->ip.reass.l4_src_port, sm->outside_fib_index,
- ip->protocol);
+ init_ed_k (&kv, ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port,
+ ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
+ sm->outside_fib_index, ip->protocol);
/* NAT packet aimed at external address if has active sessions */
if (clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
&lookup_sport, &lookup_daddr,
&lookup_dport, &lookup_protocol))
return 0;
- init_ed_k (&kv, lookup_saddr.as_u32, lookup_sport, lookup_daddr.as_u32,
- lookup_dport, 0, lookup_protocol);
+ init_ed_k (&kv, lookup_saddr, lookup_sport, lookup_daddr, lookup_dport,
+ 0, lookup_protocol);
}
else if (ip->protocol == IP_PROTOCOL_UDP || ip->protocol == IP_PROTOCOL_TCP)
{
- init_ed_k (&kv, ip->src_address.as_u32,
- vnet_buffer (b)->ip.reass.l4_src_port, ip->dst_address.as_u32,
- vnet_buffer (b)->ip.reass.l4_dst_port, 0, ip->protocol);
+ init_ed_k (&kv, ip->src_address, vnet_buffer (b)->ip.reass.l4_src_port,
+ ip->dst_address, vnet_buffer (b)->ip.reass.l4_dst_port, 0,
+ ip->protocol);
}
else
{
- init_ed_k (&kv, ip->src_address.as_u32, 0, ip->dst_address.as_u32, 0, 0,
+ init_ed_k (&kv, ip->src_address, 0, ip->dst_address, 0, 0,
ip->protocol);
}
u32 tx_fib_index = ip4_fib_table_get_index_for_sw_if_index (tx_sw_if_index);
/* src NAT check */
- init_ed_k (&kv, ip->src_address.as_u32, src_port, ip->dst_address.as_u32,
- dst_port, tx_fib_index, ip->protocol);
+ init_ed_k (&kv, ip->src_address, src_port, ip->dst_address, dst_port,
+ tx_fib_index, ip->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
{
ASSERT (thread_index == ed_value_get_thread_index (&value));
if (nat44_is_ses_closed (s)
&& (!s->tcp_closed_timestamp || now >= s->tcp_closed_timestamp))
{
- nat44_ed_free_session_data (sm, s, thread_index, 0);
+ nat_free_session_data (sm, s, thread_index, 0);
nat_ed_session_delete (sm, s, thread_index, 1);
}
return 1;
s = NULL;
}
- init_ed_k (&kv, ip->dst_address.as_u32, dst_port, ip->src_address.as_u32,
- src_port, rx_fib_index, ip->protocol);
+ init_ed_k (&kv, ip->dst_address, dst_port, ip->src_address, src_port,
+ rx_fib_index, ip->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
{
ASSERT (thread_index == ed_value_get_thread_index (&value));
}
else
{
- if (PREDICT_FALSE (nat44_ed_not_translate (
- vm, sm, node, sw_if_index, b, ip, IP_PROTOCOL_ICMP, rx_fib_index)))
+ if (PREDICT_FALSE (nat44_ed_not_translate (vm, sm, node, sw_if_index, b,
+ ip, NAT_PROTOCOL_ICMP,
+ rx_fib_index)))
{
return next;
}
vlib_main_t *vm,
vlib_node_runtime_t *node)
{
+ clib_bihash_kv_8_8_t kv, value;
clib_bihash_kv_16_8_t s_kv, s_value;
snat_static_mapping_t *m = NULL;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
break;
}
+ init_nat_k (&kv, ip->src_address, 0, rx_fib_index, 0);
+
/* Try to find static mapping first */
- m = nat44_ed_sm_i2o_lookup (sm, ip->src_address, 0, rx_fib_index,
- ip->protocol);
- if (m)
+ if (!clib_bihash_search_8_8 (&sm->static_mapping_by_local, &kv, &value))
{
+ m = pool_elt_at_index (sm->static_mappings, value.value);
new_src_addr = m->external_addr;
}
else
{
if (s->ext_host_addr.as_u32 == ip->dst_address.as_u32)
{
- init_ed_k (&s_kv, s->out2in.addr.as_u32, 0,
- ip->dst_address.as_u32, 0, outside_fib_index,
- ip->protocol);
+ init_ed_k (&s_kv, s->out2in.addr, 0, ip->dst_address, 0,
+ outside_fib_index, ip->protocol);
if (clib_bihash_search_16_8 (&sm->flow_hash, &s_kv, &s_value))
{
new_src_addr = s->out2in.addr;
{
for (i = 0; i < vec_len (sm->addresses); i++)
{
- init_ed_k (&s_kv, sm->addresses[i].addr.as_u32, 0,
- ip->dst_address.as_u32, 0, outside_fib_index,
- ip->protocol);
+ init_ed_k (&s_kv, sm->addresses[i].addr, 0, ip->dst_address, 0,
+ outside_fib_index, ip->protocol);
if (clib_bihash_search_16_8 (&sm->flow_hash, &s_kv, &s_value))
{
new_src_addr = sm->addresses[i].addr;
nat_6t_flow_txfib_rewrite_set (&s->i2o, outside_fib_index);
// hairpinning?
- int is_hairpinning = nat44_ed_external_sm_lookup (
- sm, ip->dst_address, 0, ip->protocol, &new_dst_addr, NULL);
+ int is_hairpinning =
+ nat44_ed_external_sm_lookup (sm, ip->dst_address, 0, NAT_PROTOCOL_OTHER,
+ outside_fib_index, &new_dst_addr, NULL);
s->flags |= is_hairpinning * SNAT_SESSION_FLAG_HAIRPINNING;
nat_6t_flow_daddr_rewrite_set (&s->i2o, new_dst_addr.as_u32);
nat_6t_flow_txfib_rewrite_set (&s->o2i, rx_fib_index);
s->ext_host_addr.as_u32 = ip->dst_address.as_u32;
+ s->flags |= SNAT_SESSION_FLAG_UNKNOWN_PROTO;
s->out2in.addr.as_u32 = new_src_addr.as_u32;
s->out2in.fib_index = outside_fib_index;
s->in2out.addr.as_u32 = ip->src_address.as_u32;
u32 rx_sw_if_index0, rx_fib_index0, iph_offset0 = 0;
u32 tx_sw_if_index0;
u32 cntr_sw_if_index0;
- ip_protocol_t proto0;
+ nat_protocol_t proto0;
ip4_header_t *ip0;
snat_session_t *s0 = 0;
clib_bihash_kv_16_8_t kv0, value0;
goto trace0;
}
- proto0 = ip0->protocol;
+ proto0 = ip_proto_to_nat_proto (ip0->protocol);
if (is_output_feature)
{
goto trace0;
}
- if (PREDICT_FALSE (proto0 == IP_PROTOCOL_ICMP))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP))
{
if (vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags !=
ICMP4_echo_request &&
s0 = NULL;
}
- init_ed_k (&kv0, lookup.saddr.as_u32, lookup.sport, lookup.daddr.as_u32,
- lookup.dport, lookup.fib_index, lookup.proto);
+ init_ed_k (&kv0, lookup.saddr, lookup.sport, lookup.daddr, lookup.dport,
+ lookup.fib_index, lookup.proto);
// lookup flow
if (clib_bihash_search_16_8 (&sm->flow_hash, &kv0, &value0))
if (PREDICT_FALSE (per_vrf_sessions_is_expired (s0, thread_index)))
{
// session is closed, go slow path
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace0;
s0->last_heard + (f64) nat44_session_get_timeout (sm, s0);
if (now >= sess_timeout_time)
{
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
// session is closed, go slow path
next[0] = def_slow;
else
{
translation_error = NAT_ED_TRNSL_ERR_FLOW_MISMATCH;
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_TRNSL_FAILED];
(translation_error = nat_6t_flow_buf_translate_i2o (
vm, sm, b0, ip0, f, proto0, is_output_feature)))
{
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_TRNSL_FAILED];
switch (proto0)
{
- case IP_PROTOCOL_TCP:
+ case NAT_PROTOCOL_TCP:
vlib_increment_simple_counter (&sm->counters.fastpath.in2out.tcp,
thread_index, cntr_sw_if_index0, 1);
nat44_set_tcp_session_state_i2o (sm, now, s0, b0, thread_index);
break;
- case IP_PROTOCOL_UDP:
+ case NAT_PROTOCOL_UDP:
vlib_increment_simple_counter (&sm->counters.fastpath.in2out.udp,
thread_index, cntr_sw_if_index0, 1);
break;
- case IP_PROTOCOL_ICMP:
+ case NAT_PROTOCOL_ICMP:
vlib_increment_simple_counter (&sm->counters.fastpath.in2out.icmp,
thread_index, cntr_sw_if_index0, 1);
break;
- default:
+ case NAT_PROTOCOL_OTHER:
vlib_increment_simple_counter (&sm->counters.fastpath.in2out.other,
thread_index, cntr_sw_if_index0, 1);
break;
u32 rx_sw_if_index0, rx_fib_index0, iph_offset0 = 0;
u32 tx_sw_if_index0;
u32 cntr_sw_if_index0;
- ip_protocol_t proto0;
+ nat_protocol_t proto0;
ip4_header_t *ip0;
udp_header_t *udp0;
icmp46_header_t *icmp0;
udp0 = ip4_next_header (ip0);
icmp0 = (icmp46_header_t *) udp0;
- proto0 = ip0->protocol;
+ proto0 = ip_proto_to_nat_proto (ip0->protocol);
- if (PREDICT_FALSE (nat44_ed_is_unk_proto (proto0)))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_OTHER))
{
s0 = nat44_ed_in2out_slowpath_unknown_proto (
sm, b0, ip0, rx_fib_index0, thread_index, now, vm, node);
(translation_error = nat_6t_flow_buf_translate_i2o (
vm, sm, b0, ip0, &s0->i2o, proto0, is_output_feature)))
{
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_TRNSL_FAILED];
goto trace0;
}
- if (PREDICT_FALSE (proto0 == IP_PROTOCOL_ICMP))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP))
{
next[0] = icmp_in2out_ed_slow_path (
sm, b0, ip0, icmp0, rx_sw_if_index0, rx_fib_index0, node, next[0],
(translation_error = nat_6t_flow_buf_translate_i2o (
vm, sm, b0, ip0, &s0->i2o, proto0, is_output_feature)))
{
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_TRNSL_FAILED];
goto trace0;
}
- init_ed_k (
- &kv0, ip0->src_address.as_u32, vnet_buffer (b0)->ip.reass.l4_src_port,
- ip0->dst_address.as_u32, vnet_buffer (b0)->ip.reass.l4_dst_port,
- rx_fib_index0, ip0->protocol);
+ init_ed_k (&kv0, ip0->src_address,
+ vnet_buffer (b0)->ip.reass.l4_src_port, ip0->dst_address,
+ vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0,
+ ip0->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv0, &value0))
{
ASSERT (thread_index == ed_value_get_thread_index (&value0));
if (s0->tcp_closed_timestamp && now >= s0->tcp_closed_timestamp)
{
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
s0 = NULL;
}
* Send DHCP packets to the ipv4 stack, or we won't
* be able to use dhcp client on the outside interface
*/
- if (PREDICT_FALSE (
- proto0 == IP_PROTOCOL_UDP &&
- (vnet_buffer (b0)->ip.reass.l4_dst_port ==
- clib_host_to_net_u16 (UDP_DST_PORT_dhcp_to_server)) &&
- ip0->dst_address.as_u32 == 0xffffffff))
+ if (PREDICT_FALSE
+ (proto0 == NAT_PROTOCOL_UDP
+ && (vnet_buffer (b0)->ip.reass.l4_dst_port ==
+ clib_host_to_net_u16 (UDP_DST_PORT_dhcp_to_server))
+ && ip0->dst_address.as_u32 == 0xffffffff))
goto trace0;
}
else
(translation_error = nat_6t_flow_buf_translate_i2o (
vm, sm, b0, ip0, &s0->i2o, proto0, is_output_feature)))
{
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_IN2OUT_ED_ERROR_TRNSL_FAILED];
goto trace0;
}
- if (PREDICT_TRUE (proto0 == IP_PROTOCOL_TCP))
+ if (PREDICT_TRUE (proto0 == NAT_PROTOCOL_TCP))
{
vlib_increment_simple_counter (&sm->counters.slowpath.in2out.tcp,
thread_index, cntr_sw_if_index0, 1);
#include <nat/lib/log.h>
#include <nat/nat44-ed/nat44_ed.h>
+always_inline u64
+calc_nat_key (ip4_address_t addr, u16 port, u32 fib_index, u8 proto)
+{
+ ASSERT (fib_index <= (1 << 14) - 1);
+ ASSERT (proto <= (1 << 3) - 1);
+ return (u64) addr.as_u32 << 32 | (u64) port << 16 | fib_index << 3 |
+ (proto & 0x7);
+}
+
always_inline void
-init_ed_k (clib_bihash_kv_16_8_t *kv, u32 l_addr, u16 l_port, u32 r_addr,
- u16 r_port, u32 fib_index, ip_protocol_t proto)
+split_nat_key (u64 key, ip4_address_t *addr, u16 *port, u32 *fib_index,
+ nat_protocol_t *proto)
{
- kv->key[0] = (u64) r_addr << 32 | l_addr;
- kv->key[1] =
- (u64) r_port << 48 | (u64) l_port << 32 | fib_index << 8 | proto;
+ if (addr)
+ {
+ addr->as_u32 = key >> 32;
+ }
+ if (port)
+ {
+ *port = (key >> 16) & (u16) ~0;
+ }
+ if (fib_index)
+ {
+ *fib_index = key >> 3 & ((1 << 13) - 1);
+ }
+ if (proto)
+ {
+ *proto = key & 0x7;
+ }
}
always_inline void
-init_ed_kv (clib_bihash_kv_16_8_t *kv, u32 l_addr, u16 l_port, u32 r_addr,
- u16 r_port, u32 fib_index, u8 proto, u32 thread_index,
- u32 session_index)
+init_nat_k (clib_bihash_kv_8_8_t *kv, ip4_address_t addr, u16 port,
+ u32 fib_index, nat_protocol_t proto)
{
- init_ed_k (kv, l_addr, l_port, r_addr, r_port, fib_index, proto);
+ kv->key = calc_nat_key (addr, port, fib_index, proto);
+ kv->value = ~0ULL;
+}
+
+always_inline void
+init_nat_kv (clib_bihash_kv_8_8_t *kv, ip4_address_t addr, u16 port,
+ u32 fib_index, nat_protocol_t proto, u32 thread_index,
+ u32 session_index)
+{
+ init_nat_k (kv, addr, port, fib_index, proto);
+ kv->value = (u64) thread_index << 32 | session_index;
+}
+
+always_inline void
+init_nat_i2o_k (clib_bihash_kv_8_8_t *kv, snat_session_t *s)
+{
+ return init_nat_k (kv, s->in2out.addr, s->in2out.port, s->in2out.fib_index,
+ s->nat_proto);
+}
+
+always_inline void
+init_nat_i2o_kv (clib_bihash_kv_8_8_t *kv, snat_session_t *s, u32 thread_index,
+ u32 session_index)
+{
+ init_nat_k (kv, s->in2out.addr, s->in2out.port, s->in2out.fib_index,
+ s->nat_proto);
kv->value = (u64) thread_index << 32 | session_index;
}
always_inline void
-nat44_ed_sm_init_i2o_kv (clib_bihash_kv_16_8_t *kv, u32 addr, u16 port,
- u32 fib_index, u8 proto, u32 sm_index)
+init_nat_o2i_k (clib_bihash_kv_8_8_t *kv, snat_session_t *s)
{
- return init_ed_kv (kv, addr, port, 0, 0, fib_index, proto, 0, sm_index);
+ return init_nat_k (kv, s->out2in.addr, s->out2in.port, s->out2in.fib_index,
+ s->nat_proto);
}
always_inline void
-nat44_ed_sm_init_o2i_kv (clib_bihash_kv_16_8_t *kv, u32 e_addr, u16 e_port,
- u32 fib_index, u8 proto, u32 sm_index)
+init_nat_o2i_kv (clib_bihash_kv_8_8_t *kv, snat_session_t *s, u32 thread_index,
+ u32 session_index)
+{
+ init_nat_k (kv, s->out2in.addr, s->out2in.port, s->out2in.fib_index,
+ s->nat_proto);
+ kv->value = (u64) thread_index << 32 | session_index;
+}
+
+always_inline u32
+nat_value_get_thread_index (clib_bihash_kv_8_8_t *value)
+{
+ return value->value >> 32;
+}
+
+always_inline u32
+nat_value_get_session_index (clib_bihash_kv_8_8_t *value)
{
- return init_ed_kv (kv, 0, 0, e_addr, e_port, fib_index, proto, 0, sm_index);
+ return value->value & ~(u32) 0;
}
always_inline void
-nat44_ed_sm_init_i2o_k (clib_bihash_kv_16_8_t *kv, u32 addr, u16 port,
- u32 fib_index, u8 proto)
+init_ed_k (clib_bihash_kv_16_8_t *kv, ip4_address_t l_addr, u16 l_port,
+ ip4_address_t r_addr, u16 r_port, u32 fib_index, u8 proto)
{
- return nat44_ed_sm_init_i2o_kv (kv, addr, port, fib_index, proto, 0);
+ kv->key[0] = (u64) r_addr.as_u32 << 32 | l_addr.as_u32;
+ kv->key[1] =
+ (u64) r_port << 48 | (u64) l_port << 32 | fib_index << 8 | proto;
}
always_inline void
-nat44_ed_sm_init_o2i_k (clib_bihash_kv_16_8_t *kv, u32 e_addr, u16 e_port,
- u32 fib_index, u8 proto)
+init_ed_kv (clib_bihash_kv_16_8_t *kv, ip4_address_t l_addr, u16 l_port,
+ ip4_address_t r_addr, u16 r_port, u32 fib_index, u8 proto,
+ u32 thread_index, u32 session_index)
{
- return nat44_ed_sm_init_o2i_kv (kv, e_addr, e_port, fib_index, proto, 0);
+ init_ed_k (kv, l_addr, l_port, r_addr, r_port, fib_index, proto);
+ kv->value = (u64) thread_index << 32 | session_index;
}
always_inline u32
*lookup_protocol = inner_ip0->protocol;
lookup_saddr->as_u32 = inner_ip0->dst_address.as_u32;
lookup_daddr->as_u32 = inner_ip0->src_address.as_u32;
- switch (inner_ip0->protocol)
+ switch (ip_proto_to_nat_proto (inner_ip0->protocol))
{
- case IP_PROTOCOL_ICMP:
+ case NAT_PROTOCOL_ICMP:
inner_icmp0 = (icmp46_header_t *) l4_header;
inner_echo0 = (icmp_echo_header_t *) (inner_icmp0 + 1);
*lookup_sport = inner_echo0->identifier;
*lookup_dport = inner_echo0->identifier;
break;
- case IP_PROTOCOL_UDP:
- case IP_PROTOCOL_TCP:
+ case NAT_PROTOCOL_UDP:
+ case NAT_PROTOCOL_TCP:
*lookup_sport = ((tcp_udp_header_t *) l4_header)->dst_port;
*lookup_dport = ((tcp_udp_header_t *) l4_header)->src_port;
break;
always_inline u32
nat44_session_get_timeout (snat_main_t *sm, snat_session_t *s)
{
- switch (s->proto)
+ switch (s->nat_proto)
{
- case IP_PROTOCOL_ICMP:
- /* fallthrough */
- case IP_PROTOCOL_ICMP6:
+ case NAT_PROTOCOL_ICMP:
return sm->timeouts.icmp;
- case IP_PROTOCOL_UDP:
+ case NAT_PROTOCOL_UDP:
return sm->timeouts.udp;
- case IP_PROTOCOL_TCP:
+ case NAT_PROTOCOL_TCP:
{
if (s->state)
return sm->timeouts.tcp.transitory;
static_always_inline void
nat_6t_flow_to_ed_k (clib_bihash_kv_16_8_t *kv, nat_6t_flow_t *f)
{
- init_ed_k (kv, f->match.saddr.as_u32, f->match.sport, f->match.daddr.as_u32,
+ init_ed_k (kv, f->match.saddr, f->match.sport, f->match.daddr,
f->match.dport, f->match.fib_index, f->match.proto);
}
nat_6t_flow_to_ed_kv (clib_bihash_kv_16_8_t *kv, nat_6t_flow_t *f,
u32 thread_idx, u32 session_idx)
{
- init_ed_kv (kv, f->match.saddr.as_u32, f->match.sport, f->match.daddr.as_u32,
+ init_ed_kv (kv, f->match.saddr, f->match.sport, f->match.daddr,
f->match.dport, f->match.fib_index, f->match.proto, thread_idx,
session_idx);
}
else
{
nat_6t_flow_to_ed_kv (&kv, &s->o2i, thread_idx, s - tsm->sessions);
- if (!(s->flags & SNAT_SESSION_FLAG_STATIC_MAPPING))
- {
- if (nat44_ed_sm_o2i_lookup (sm, s->o2i.match.daddr,
- s->o2i.match.dport, 0,
- s->o2i.match.proto))
- {
- return -1;
- }
- }
nat_6t_l3_l4_csum_calc (&s->o2i);
}
ASSERT (thread_idx == s->thread_index);
if (now >= sess_timeout_time ||
(s->tcp_closed_timestamp && now >= s->tcp_closed_timestamp))
{
- nat44_ed_free_session_data (sm, s, thread_index, 0);
+ nat_free_session_data (sm, s, thread_index, 0);
nat_ed_session_delete (sm, s, thread_index, 0);
return 1;
}
}
}
-static_always_inline int
-nat44_ed_is_unk_proto (u8 proto)
-{
- static const int lookup_table[256] = {
- [IP_PROTOCOL_TCP] = 1,
- [IP_PROTOCOL_UDP] = 1,
- [IP_PROTOCOL_ICMP] = 1,
- [IP_PROTOCOL_ICMP6] = 1,
- };
-
- return 1 - lookup_table[proto];
-}
-
#endif /* __included_nat44_ed_inlines_h__ */
/*
#include <vnet/udp/udp_local.h>
#include <vppinfra/error.h>
+#include <nat/lib/nat_syslog.h>
#include <nat/lib/ipfix_logging.h>
#include <nat/nat44-ed/nat44_ed.h>
{
clib_bihash_kv_16_8_t kv, value;
- init_ed_k (&kv, ip->src_address.as_u32, src_port, ip->dst_address.as_u32,
- dst_port, rx_fib_index, ip->protocol);
+ init_ed_k (&kv, ip->src_address, src_port, ip->dst_address, dst_port,
+ rx_fib_index, ip->protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
return 1;
static snat_session_t *create_session_for_static_mapping_ed (
snat_main_t *sm, vlib_buffer_t *b, ip4_address_t i2o_addr, u16 i2o_port,
u32 i2o_fib_index, ip4_address_t o2i_addr, u16 o2i_port, u32 o2i_fib_index,
- ip_protocol_t proto, vlib_node_runtime_t *node, u32 thread_index,
- twice_nat_type_t twice_nat, lb_nat_type_t lb_nat, f64 now,
+ nat_protocol_t nat_proto, vlib_node_runtime_t *node, u32 rx_fib_index,
+ u32 thread_index, twice_nat_type_t twice_nat, lb_nat_type_t lb_nat, f64 now,
snat_static_mapping_t *mapping);
static inline u32
goto out;
}
- if (snat_static_mapping_match (vm, sm, ip->dst_address, lookup_sport,
- rx_fib_index, ip->protocol, &sm_addr,
- &sm_port, &sm_fib_index, 1, &is_addr_only, 0,
- 0, 0, &identity_nat, &m))
+ if (snat_static_mapping_match (
+ vm, sm, ip->dst_address, lookup_sport, rx_fib_index,
+ ip_proto_to_nat_proto (ip->protocol), &sm_addr, &sm_port,
+ &sm_fib_index, 1, &is_addr_only, 0, 0, 0, &identity_nat, &m))
{
// static mapping not matched
if (!sm->forwarding_enabled)
/* Create session initiated by host from external network */
s = create_session_for_static_mapping_ed (
sm, b, sm_addr, sm_port, sm_fib_index, ip->dst_address, lookup_sport,
- rx_fib_index, lookup_protocol, node, thread_index, 0, 0,
- vlib_time_now (vm), m);
+ rx_fib_index, ip_proto_to_nat_proto (lookup_protocol), node, rx_fib_index,
+ thread_index, 0, 0, vlib_time_now (vm), m);
if (!s)
next = NAT_NEXT_DROP;
return next;
}
+// allocate exact address based on preference
static_always_inline int
-nat44_ed_alloc_i2o_port (snat_main_t *sm, snat_address_t *a, snat_session_t *s,
- ip4_address_t i2o_addr, u16 i2o_port,
- u32 i2o_fib_index, ip_protocol_t proto,
- u32 thread_index, u32 snat_thread_index,
- ip4_address_t *outside_addr, u16 *outside_port)
+nat_alloc_addr_and_port_exact (snat_address_t * a,
+ u32 thread_index,
+ nat_protocol_t proto,
+ ip4_address_t * addr,
+ u16 * port,
+ u16 port_per_thread, u32 snat_thread_index)
{
+ snat_main_t *sm = &snat_main;
u32 portnum;
- for (int i = 0; i < ED_PORT_ALLOC_ATTEMPTS; ++i)
+ switch (proto)
{
- portnum = (sm->port_per_thread * snat_thread_index) +
- snat_random_port (0, sm->port_per_thread - 1) + 1024;
- portnum = clib_host_to_net_u16 (portnum);
- nat_6t_i2o_flow_init (sm, thread_index, s, i2o_addr, i2o_port, a->addr,
- portnum, i2o_fib_index, proto);
- if (!nat_ed_ses_i2o_flow_hash_add_del (sm, thread_index, s,
- 1 /* is_add */))
- {
- *outside_addr = a->addr;
- *outside_port = portnum;
- return 0;
- }
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ if (a->busy_##n##_ports_per_thread[thread_index] < port_per_thread) \
+ { \
+ while (1) \
+ { \
+ portnum = (port_per_thread * \
+ snat_thread_index) + \
+ snat_random_port(0, port_per_thread - 1) + 1024; \
+ if (a->busy_##n##_port_refcounts[portnum]) \
+ continue; \
+ --a->busy_##n##_port_refcounts[portnum]; \
+ a->busy_##n##_ports_per_thread[thread_index]++; \
+ a->busy_##n##_ports++; \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16(portnum); \
+ return 0; \
+ } \
+ } \
+ break;
+ foreach_nat_protocol
+#undef _
+ default : nat_elog_info (sm, "unknown protocol");
+ return 1;
}
/* Totally out of translations to use... */
}
static_always_inline int
-nat44_ed_alloc_i2o_addr_and_port (snat_main_t *sm, snat_address_t *addresses,
- snat_session_t *s, ip4_address_t i2o_addr,
- u16 i2o_port, u32 i2o_fib_index,
- ip_protocol_t proto, u32 thread_index,
- u32 snat_thread_index,
- ip4_address_t *outside_addr,
- u16 *outside_port)
+nat44_ed_alloc_outside_addr_and_port (snat_address_t *addresses, u32 fib_index,
+ u32 thread_index, nat_protocol_t proto,
+ ip4_address_t *addr, u16 *port,
+ u16 port_per_thread,
+ u32 snat_thread_index)
{
+ snat_main_t *sm = &snat_main;
snat_address_t *a, *ga = 0;
+ u32 portnum;
int i;
- if (vec_len (addresses) > 0)
+ for (i = 0; i < vec_len (addresses); i++)
{
- int s_addr_offset = i2o_addr.as_u32 % vec_len (addresses);
-
- for (i = s_addr_offset; i < vec_len (addresses); ++i)
+ a = addresses + i;
+ switch (proto)
{
- a = addresses + i;
- if (a->fib_index == i2o_fib_index)
- {
- return nat44_ed_alloc_i2o_port (
- sm, a, s, i2o_addr, i2o_port, i2o_fib_index, proto,
- thread_index, snat_thread_index, outside_addr, outside_port);
- }
- else if (a->fib_index == ~0)
- {
- ga = a;
- }
- }
-
- for (i = 0; i < s_addr_offset; ++i)
- {
- a = addresses + i;
- if (a->fib_index == i2o_fib_index)
- {
- return nat44_ed_alloc_i2o_port (
- sm, a, s, i2o_addr, i2o_port, i2o_fib_index, proto,
- thread_index, snat_thread_index, outside_addr, outside_port);
- }
- else if (a->fib_index == ~0)
- {
- ga = a;
- }
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ if (a->busy_##n##_ports_per_thread[thread_index] < port_per_thread) \
+ { \
+ if (a->fib_index == fib_index) \
+ { \
+ while (1) \
+ { \
+ portnum = (port_per_thread * snat_thread_index) + \
+ snat_random_port (0, port_per_thread - 1) + 1024; \
+ if (a->busy_##n##_port_refcounts[portnum]) \
+ continue; \
+ --a->busy_##n##_port_refcounts[portnum]; \
+ a->busy_##n##_ports_per_thread[thread_index]++; \
+ a->busy_##n##_ports++; \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16 (portnum); \
+ return 0; \
+ } \
+ } \
+ else if (a->fib_index == ~0) \
+ { \
+ ga = a; \
+ } \
+ } \
+ break;
+ foreach_nat_protocol
+#undef _
+ default : nat_elog_info (sm, "unknown protocol");
+ return 1;
}
+ }
- if (ga)
+ if (ga)
+ {
+ a = ga;
+ switch (proto)
{
- return nat44_ed_alloc_i2o_port (
- sm, a, s, i2o_addr, i2o_port, i2o_fib_index, proto, thread_index,
- snat_thread_index, outside_addr, outside_port);
+#define _(N, j, n, s) \
+ case NAT_PROTOCOL_##N: \
+ while (1) \
+ { \
+ portnum = (port_per_thread * snat_thread_index) + \
+ snat_random_port (0, port_per_thread - 1) + 1024; \
+ if (a->busy_##n##_port_refcounts[portnum]) \
+ continue; \
+ ++a->busy_##n##_port_refcounts[portnum]; \
+ a->busy_##n##_ports_per_thread[thread_index]++; \
+ a->busy_##n##_ports++; \
+ *addr = a->addr; \
+ *port = clib_host_to_net_u16 (portnum); \
+ return 0; \
+ }
+ break;
+ foreach_nat_protocol
+#undef _
+ default : nat_elog_info (sm, "unknown protocol");
+ return 1;
}
}
create_session_for_static_mapping_ed (
snat_main_t *sm, vlib_buffer_t *b, ip4_address_t i2o_addr, u16 i2o_port,
u32 i2o_fib_index, ip4_address_t o2i_addr, u16 o2i_port, u32 o2i_fib_index,
- ip_protocol_t proto, vlib_node_runtime_t *node, u32 thread_index,
- twice_nat_type_t twice_nat, lb_nat_type_t lb_nat, f64 now,
+ nat_protocol_t nat_proto, vlib_node_runtime_t *node, u32 rx_fib_index,
+ u32 thread_index, twice_nat_type_t twice_nat, lb_nat_type_t lb_nat, f64 now,
snat_static_mapping_t *mapping)
{
snat_session_t *s;
ip4_header_t *ip;
snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index];
- if (PREDICT_FALSE (
- nat44_ed_maximum_sessions_exceeded (sm, o2i_fib_index, thread_index)))
+ if (PREDICT_FALSE
+ (nat44_ed_maximum_sessions_exceeded (sm, rx_fib_index, thread_index)))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_SESSIONS_EXCEEDED];
nat_elog_notice (sm, "maximum sessions exceeded");
return 0;
}
- s = nat_ed_session_alloc (sm, thread_index, now, proto);
+ s = nat_ed_session_alloc (sm, thread_index, now, nat_proto);
if (!s)
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_MAX_SESSIONS_EXCEEDED];
s->ext_host_addr.as_u32 = ip->src_address.as_u32;
s->ext_host_port =
- proto == IP_PROTOCOL_ICMP ? 0 : vnet_buffer (b)->ip.reass.l4_src_port;
+ nat_proto == NAT_PROTOCOL_ICMP ? 0 : vnet_buffer (b)->ip.reass.l4_src_port;
s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
if (lb_nat)
s->flags |= SNAT_SESSION_FLAG_LOAD_BALANCING;
s->in2out.addr = i2o_addr;
s->in2out.port = i2o_port;
s->in2out.fib_index = i2o_fib_index;
- s->proto = proto;
+ s->nat_proto = nat_proto;
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_o2i_flow_init (sm, thread_index, s, s->ext_host_addr, o2i_port,
o2i_addr, o2i_port, o2i_fib_index, ip->protocol);
if (filter)
{
- rc = nat44_ed_alloc_i2o_port (
- sm, filter, s, i2o_addr, i2o_port, i2o_fib_index, proto,
- thread_index, tsm->snat_thread_index, &s->ext_host_nat_addr,
- &s->ext_host_nat_port);
+ rc = nat_alloc_addr_and_port_exact (filter,
+ thread_index,
+ nat_proto,
+ &s->ext_host_nat_addr,
+ &s->ext_host_nat_port,
+ sm->port_per_thread,
+ tsm->snat_thread_index);
s->flags |= SNAT_SESSION_FLAG_EXACT_ADDRESS;
}
else
{
- rc = nat44_ed_alloc_i2o_addr_and_port (
- sm, sm->twice_nat_addresses, s, i2o_addr, i2o_port, i2o_fib_index,
- proto, thread_index, tsm->snat_thread_index, &s->ext_host_nat_addr,
- &s->ext_host_nat_port);
+ rc = nat44_ed_alloc_outside_addr_and_port (
+ sm->twice_nat_addresses, 0, thread_index, nat_proto,
+ &s->ext_host_nat_addr, &s->ext_host_nat_port, sm->port_per_thread,
+ tsm->snat_thread_index);
}
if (rc)
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_OUT_OF_PORTS];
+ if (nat_ed_ses_o2i_flow_hash_add_del (sm, thread_index, s, 0))
+ {
+ nat_elog_warn (sm, "out2in flow hash del failed");
+ }
+ snat_free_outside_address_and_port (
+ sm->twice_nat_addresses, thread_index, &s->ext_host_nat_addr,
+ s->ext_host_nat_port, s->nat_proto);
nat_ed_session_delete (sm, s, thread_index, 1);
return 0;
}
s->flags |= SNAT_SESSION_FLAG_TWICE_NAT;
nat_6t_flow_saddr_rewrite_set (&s->o2i, s->ext_host_nat_addr.as_u32);
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_flow_icmp_id_rewrite_set (&s->o2i, s->ext_host_nat_port);
}
nat_6t_l3_l4_csum_calc (&s->o2i);
+ nat_6t_i2o_flow_init (sm, thread_index, s, i2o_addr, i2o_port,
+ s->ext_host_nat_addr, s->ext_host_nat_port,
+ i2o_fib_index, ip->protocol);
nat_6t_flow_daddr_rewrite_set (&s->i2o, s->ext_host_addr.as_u32);
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_flow_icmp_id_rewrite_set (&s->i2o, s->ext_host_port);
}
{
nat_6t_flow_dport_rewrite_set (&s->i2o, s->ext_host_port);
}
-
- nat_6t_flow_saddr_rewrite_set (&s->i2o, o2i_addr.as_u32);
- if (IP_PROTOCOL_ICMP == proto)
- {
- nat_6t_flow_icmp_id_rewrite_set (&s->i2o, o2i_port);
- }
- else
- {
- nat_6t_flow_sport_rewrite_set (&s->i2o, o2i_port);
- }
- nat_6t_l3_l4_csum_calc (&s->i2o);
}
else
{
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_i2o_flow_init (sm, thread_index, s, i2o_addr, i2o_port,
s->ext_host_addr, i2o_port, i2o_fib_index,
s->ext_host_addr, s->ext_host_port,
i2o_fib_index, ip->protocol);
}
+ }
nat_6t_flow_saddr_rewrite_set (&s->i2o, o2i_addr.as_u32);
- if (IP_PROTOCOL_ICMP == proto)
+ if (NAT_PROTOCOL_ICMP == nat_proto)
{
nat_6t_flow_icmp_id_rewrite_set (&s->i2o, o2i_port);
}
nat_ed_session_delete (sm, s, thread_index, 1);
return 0;
}
- }
- nat_ipfix_logging_nat44_ses_create (
- thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32, s->proto,
- s->in2out.port, s->out2in.port, s->in2out.fib_index);
+
+ nat_ipfix_logging_nat44_ses_create (thread_index,
+ s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->nat_proto,
+ s->in2out.port,
+ s->out2in.port, s->in2out.fib_index);
nat_syslog_nat44_sadd (0, 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->proto,
+ &s->ext_host_addr, s->ext_host_port, s->nat_proto,
nat44_ed_is_twice_nat_session (s));
per_vrf_sessions_register_session (s, thread_index);
lookup_protocol = ip->protocol;
}
- init_ed_k (&kv, lookup_saddr.as_u32, lookup_sport, lookup_daddr.as_u32,
- lookup_dport, rx_fib_index, lookup_protocol);
+ init_ed_k (&kv, lookup_saddr, lookup_sport, lookup_daddr, lookup_dport,
+ rx_fib_index, lookup_protocol);
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv, &value))
{
}
else
{
+ u32 proto;
+
if (PREDICT_FALSE
(nat44_ed_maximum_sessions_exceeded
(sm, rx_fib_index, thread_index)))
return;
}
+ proto = ip_proto_to_nat_proto (ip->protocol);
+
s->ext_host_addr = ip->src_address;
s->ext_host_port = lookup_dport;
s->flags |= SNAT_SESSION_FLAG_FWD_BYPASS;
s->out2in.addr = ip->dst_address;
s->out2in.port = lookup_sport;
- s->proto = ip->protocol;
+ s->nat_proto = proto;
+ if (proto == NAT_PROTOCOL_OTHER)
+ {
+ s->flags |= SNAT_SESSION_FLAG_UNKNOWN_PROTO;
+ s->out2in.port = ip->protocol;
+ }
s->out2in.fib_index = rx_fib_index;
s->in2out.addr = s->out2in.addr;
s->in2out.port = s->out2in.port;
vlib_main_t *vm,
vlib_node_runtime_t *node)
{
+ clib_bihash_kv_8_8_t kv, value;
snat_static_mapping_t *m;
snat_session_t *s;
return 0;
}
- m = nat44_ed_sm_o2i_lookup (sm, ip->dst_address, 0, 0, ip->protocol);
- if (!m)
+ init_nat_k (&kv, ip->dst_address, 0, 0, 0);
+ if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value))
{
b->error = node->errors[NAT_OUT2IN_ED_ERROR_NO_TRANSLATION];
return 0;
}
+ m = pool_elt_at_index (sm->static_mappings, value.value);
+
/* Create a new session */
s = nat_ed_session_alloc (sm, thread_index, now, ip->protocol);
if (!s)
}
s->ext_host_addr.as_u32 = ip->src_address.as_u32;
+ s->flags |= SNAT_SESSION_FLAG_UNKNOWN_PROTO;
s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING;
s->out2in.addr.as_u32 = ip->dst_address.as_u32;
s->out2in.fib_index = rx_fib_index;
{
vlib_buffer_t *b0;
u32 sw_if_index0, rx_fib_index0;
- ip_protocol_t proto0;
+ nat_protocol_t proto0;
ip4_header_t *ip0;
snat_session_t *s0 = 0;
clib_bihash_kv_16_8_t kv0, value0;
goto trace0;
}
- proto0 = ip0->protocol;
+ proto0 = ip_proto_to_nat_proto (ip0->protocol);
- if (PREDICT_FALSE (proto0 == IP_PROTOCOL_ICMP))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP))
{
if (vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags !=
ICMP4_echo_request &&
s0 = NULL;
}
- init_ed_k (&kv0, lookup.saddr.as_u32, lookup.sport, lookup.daddr.as_u32,
- lookup.dport, lookup.fib_index, lookup.proto);
+ init_ed_k (&kv0, lookup.saddr, lookup.sport, lookup.daddr, lookup.dport,
+ lookup.fib_index, lookup.proto);
// lookup flow
if (clib_bihash_search_16_8 (&sm->flow_hash, &kv0, &value0))
if (PREDICT_FALSE (per_vrf_sessions_is_expired (s0, thread_index)))
{
// session is closed, go slow path
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
slow_path_reason = NAT_ED_SP_REASON_VRF_EXPIRED;
next[0] = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
if (now >= sess_timeout_time)
{
// session is closed, go slow path
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
slow_path_reason = NAT_ED_SP_SESS_EXPIRED;
next[0] = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
* be able to use dhcp client on the outside interface
*/
if (PREDICT_FALSE (
- proto0 == IP_PROTOCOL_UDP &&
+ proto0 == NAT_PROTOCOL_UDP &&
(vnet_buffer (b0)->ip.reass.l4_dst_port ==
clib_host_to_net_u16 (UDP_DST_PORT_dhcp_to_client))))
{
// create_bypass_for_fwd (sm, b0, s0, ip0, rx_fib_index0,
// thread_index);
translation_error = NAT_ED_TRNSL_ERR_FLOW_MISMATCH;
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
next[0] = NAT_NEXT_DROP;
b0->error = node->errors[NAT_OUT2IN_ED_ERROR_TRNSL_FAILED];
switch (proto0)
{
- case IP_PROTOCOL_TCP:
+ case NAT_PROTOCOL_TCP:
vlib_increment_simple_counter (&sm->counters.fastpath.out2in.tcp,
thread_index, sw_if_index0, 1);
nat44_set_tcp_session_state_o2i (sm, now, s0,
reass.tcp_seq_number,
thread_index);
break;
- case IP_PROTOCOL_UDP:
+ case NAT_PROTOCOL_UDP:
vlib_increment_simple_counter (&sm->counters.fastpath.out2in.udp,
thread_index, sw_if_index0, 1);
break;
- case IP_PROTOCOL_ICMP:
+ case NAT_PROTOCOL_ICMP:
vlib_increment_simple_counter (&sm->counters.fastpath.out2in.icmp,
thread_index, sw_if_index0, 1);
break;
- default:
+ case NAT_PROTOCOL_OTHER:
vlib_increment_simple_counter (&sm->counters.fastpath.out2in.other,
thread_index, sw_if_index0, 1);
break;
{
vlib_buffer_t *b0;
u32 sw_if_index0, rx_fib_index0;
- ip_protocol_t proto0;
+ nat_protocol_t proto0;
ip4_header_t *ip0;
udp_header_t *udp0;
icmp46_header_t *icmp0;
udp0 = ip4_next_header (ip0);
icmp0 = (icmp46_header_t *) udp0;
- proto0 = ip0->protocol;
+ proto0 = ip_proto_to_nat_proto (ip0->protocol);
- if (PREDICT_FALSE (nat44_ed_is_unk_proto (proto0)))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_OTHER))
{
s0 = nat44_ed_out2in_slowpath_unknown_proto (
sm, b0, ip0, rx_fib_index0, thread_index, now, vm, node);
goto trace0;
}
- if (PREDICT_FALSE (proto0 == IP_PROTOCOL_ICMP))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP))
{
next[0] = icmp_out2in_ed_slow_path
(sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node,
goto trace0;
}
- init_ed_k (
- &kv0, ip0->src_address.as_u32, vnet_buffer (b0)->ip.reass.l4_src_port,
- ip0->dst_address.as_u32, vnet_buffer (b0)->ip.reass.l4_dst_port,
- rx_fib_index0, ip0->protocol);
+ init_ed_k (&kv0, ip0->src_address,
+ vnet_buffer (b0)->ip.reass.l4_src_port, ip0->dst_address,
+ vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0,
+ ip0->protocol);
s0 = NULL;
if (!clib_bihash_search_16_8 (&sm->flow_hash, &kv0, &value0))
if (s0->tcp_closed_timestamp && now >= s0->tcp_closed_timestamp)
{
- nat44_ed_free_session_data (sm, s0, thread_index, 0);
+ nat_free_session_data (sm, s0, thread_index, 0);
nat_ed_session_delete (sm, s0, thread_index, 1);
s0 = NULL;
}
* Send DHCP packets to the ipv4 stack, or we won't
* be able to use dhcp client on the outside interface
*/
- if (PREDICT_FALSE (
- proto0 == IP_PROTOCOL_UDP &&
- (vnet_buffer (b0)->ip.reass.l4_dst_port ==
- clib_host_to_net_u16 (UDP_DST_PORT_dhcp_to_client))))
+ if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_UDP
+ && (vnet_buffer (b0)->ip.reass.l4_dst_port ==
+ clib_host_to_net_u16
+ (UDP_DST_PORT_dhcp_to_client))))
{
goto trace0;
}
if (PREDICT_FALSE (identity_nat0))
goto trace0;
- if ((proto0 == IP_PROTOCOL_TCP) &&
- !tcp_flags_is_init (
- vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags))
+ if ((proto0 == NAT_PROTOCOL_TCP)
+ && !tcp_flags_is_init (vnet_buffer (b0)->ip.
+ reass.icmp_type_or_tcp_flags))
{
b0->error = node->errors[NAT_OUT2IN_ED_ERROR_NON_SYN];
next[0] = NAT_NEXT_DROP;
}
/* Create session initiated by host from external network */
- s0 = create_session_for_static_mapping_ed (
- sm, b0, sm_addr, sm_port, sm_fib_index, ip0->dst_address,
- vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0, proto0,
- node, thread_index, twice_nat0, lb_nat0, now, m);
+ s0 = create_session_for_static_mapping_ed (sm, b0,
+ sm_addr, sm_port,
+ sm_fib_index,
+ ip0->dst_address,
+ vnet_buffer (b0)->
+ ip.reass.l4_dst_port,
+ rx_fib_index0, proto0,
+ node, rx_fib_index0,
+ thread_index, twice_nat0,
+ lb_nat0, now, m);
if (!s0)
{
next[0] = NAT_NEXT_DROP;
goto trace0;
}
- if (PREDICT_TRUE (proto0 == IP_PROTOCOL_TCP))
+ if (PREDICT_TRUE (proto0 == NAT_PROTOCOL_TCP))
{
vlib_increment_simple_counter (&sm->counters.slowpath.out2in.tcp,
thread_index, sw_if_index0, 1);
/* log NAT event */
nat_ipfix_logging_nat44_ses_delete (
thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32,
- nat_proto_to_ip_proto (s->nat_proto), s->in2out.port, s->out2in.port,
- s->in2out.fib_index);
+ s->nat_proto, s->in2out.port, s->out2in.port, s->in2out.fib_index);
nat_ha_sdel (&s->out2in.addr, s->out2in.port, &s->ext_host_addr,
s->ext_host_port, s->nat_proto, s->out2in.fib_index,
nat_ipfix_logging_nat44_ses_delete (
thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32,
- nat_proto_to_ip_proto (s->nat_proto), s->in2out.port, s->out2in.port,
- s->in2out.fib_index);
+ s->nat_proto, s->in2out.port, s->out2in.port, s->in2out.fib_index);
nat_ha_sdel (&s->out2in.addr, s->out2in.port, &s->ext_host_addr,
s->ext_host_port, s->nat_proto, s->out2in.fib_index,
#include <nat/lib/lib.h>
#include <nat/lib/inlines.h>
-#include <nat/lib/nat_proto.h>
/* default number of worker handoff frame queue elements */
#define NAT_FQ_NELTS_DEFAULT 64
if (clib_bihash_add_del_8_8 (&nm->out2in, &s_kv, 0))
nat_elog_warn (nm, "out2in key del failed");
- nat_ipfix_logging_nat44_ses_delete (
- ctx->thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32,
- nat_proto_to_ip_proto (s->nat_proto), s->in2out.port, s->out2in.port,
- s->in2out.fib_index);
+ nat_ipfix_logging_nat44_ses_delete (ctx->thread_index,
+ s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->nat_proto,
+ s->in2out.port,
+ s->out2in.port,
+ s->in2out.fib_index);
nat_syslog_nat44_apmdel (s->user_index, s->in2out.fib_index,
&s->in2out.addr, s->in2out.port,
/* log NAT event */
nat_ipfix_logging_nat44_ses_create (
- thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32,
- nat_proto_to_ip_proto (s->nat_proto), s->in2out.port, s->out2in.port,
- s->in2out.fib_index);
+ thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32, s->nat_proto,
+ 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,
#include <nat/nat44-ei/nat44_ei.h>
#include <nat/nat44-ei/nat44_ei_ha.h>
-#include <nat/lib/nat_proto.h>
always_inline u64
calc_nat_key (ip4_address_t addr, u16 port, u32 fib_index, u8 proto)
&s->ha_last_refreshed, now);
}
-static_always_inline u32
-nat_session_get_timeout (nat_timeouts_t *timeouts, nat_protocol_t proto,
- u8 state)
-{
- switch (proto)
- {
- case NAT_PROTOCOL_ICMP:
- return timeouts->icmp;
- case NAT_PROTOCOL_UDP:
- return timeouts->udp;
- case NAT_PROTOCOL_TCP:
- {
- if (state)
- return timeouts->tcp.transitory;
- else
- return timeouts->tcp.established;
- }
- default:
- return timeouts->udp;
- }
- return 0;
-}
-
#endif /* __included_nat44_ei_inlines_h__ */
/*
if (clib_bihash_add_del_8_8 (&nm->in2out, &s_kv, 0))
nat_elog_warn (nm, "out2in key del failed");
- nat_ipfix_logging_nat44_ses_delete (
- ctx->thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32,
- nat_proto_to_ip_proto (s->nat_proto), s->in2out.port, s->out2in.port,
- s->in2out.fib_index);
+ nat_ipfix_logging_nat44_ses_delete (ctx->thread_index,
+ s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->nat_proto,
+ s->in2out.port,
+ s->out2in.port,
+ s->in2out.fib_index);
nat_syslog_nat44_apmdel (s->user_index, s->in2out.fib_index,
&s->in2out.addr, s->in2out.port,
nat_elog_notice (nm, "out2in key add failed");
/* log NAT event */
- nat_ipfix_logging_nat44_ses_create (
- thread_index, s->in2out.addr.as_u32, s->out2in.addr.as_u32,
- nat_proto_to_ip_proto (s->nat_proto), s->in2out.port, s->out2in.port,
- s->in2out.fib_index);
+ nat_ipfix_logging_nat44_ses_create (thread_index,
+ s->in2out.addr.as_u32,
+ s->out2in.addr.as_u32,
+ s->nat_proto,
+ 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,
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
#include <vnet/fib/fib_source.h>
-#include <nat/lib/nat_proto.h>
#include <vppinfra/bihash_24_8.h>
#include <vppinfra/bihash_48_8.h>
n_rx = len(pkts)
self.pg_send(intf, pkts, worker=worker, trace=trace)
rx = output.get_capture(n_rx)
- if trace:
- self.logger.debug(self.vapi.cli("show trace"))
return rx
def send_and_expect_only(self, intf, pkts, output, timeout=None):
from vpp_papi import VppEnum
-class TestNAT44ED(VppTestCase):
- """ NAT44ED Test Case """
+class NAT44EDTestCase(VppTestCase):
nat_addr = '10.0.0.3'
max_sessions = 100
def setUp(self):
- super().setUp()
+ super(NAT44EDTestCase, self).setUp()
self.plugin_enable()
def tearDown(self):
- super().tearDown()
+ super(NAT44EDTestCase, self).tearDown()
if not self.vpp_dead:
self.plugin_disable()
def plugin_enable(self):
self.vapi.nat44_ed_plugin_enable_disable(
- sessions=self.max_sessions, enable=1,
- inside_vrf=0, outside_vrf=1)
+ sessions=self.max_sessions, enable=1)
def plugin_disable(self):
self.vapi.nat44_ed_plugin_enable_disable(enable=0)
@classmethod
def setUpClass(cls):
- super().setUpClass()
+ super(NAT44EDTestCase, cls).setUpClass()
cls.create_pg_interfaces(range(12))
cls.interfaces = list(cls.pg_interfaces[:4])
self.assertEqual(sd_params.get('XDPORT'),
"%d" % self.tcp_external_port)
+
+class TestNAT44ED(NAT44EDTestCase):
+ """ NAT44ED Test Case """
+
def test_icmp_error(self):
""" NAT44ED test ICMP error message with inner header"""
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- capture = self.pg1.get_capture(pkt_count * 3, timeout=5)
+ capture = self.pg1.get_capture(pkt_count * 3)
if_idx = self.pg0.sw_if_index
tc2 = self.statistics['/nat44-ed/in2out/slowpath/tcp']
+++ /dev/null
-#!/usr/bin/env python3
-"""NAT44 ED output-feature tests"""
-
-import random
-import unittest
-from scapy.layers.inet import ICMP, Ether, IP, TCP
-from scapy.packet import Raw
-from scapy.data import IP_PROTOS
-from framework import VppTestCase, VppTestRunner
-from vpp_papi import VppEnum
-
-
-def get_nat44_ed_in2out_worker_index(ip, vpp_worker_count):
- if 0 == vpp_worker_count:
- return 0
- numeric = socket.inet_aton(ip)
- numeric = struct.unpack("!L", numeric)[0]
- numeric = socket.htonl(numeric)
- h = numeric + (numeric >> 8) + (numeric >> 16) + (numeric >> 24)
- return 1 + h % vpp_worker_count
-
-
-class TestNAT44EDOutput(VppTestCase):
- """ NAT44 ED output feature Test Case """
- max_sessions = 1024
-
- @classmethod
- def setUpClass(cls):
- super().setUpClass()
- cls.create_pg_interfaces(range(2))
- cls.interfaces = list(cls.pg_interfaces)
-
- @classmethod
- def tearDownClass(cls):
- super().tearDownClass()
-
- def setUp(self):
- super().setUp()
- for i in self.interfaces:
- i.admin_up()
- i.config_ip4()
- i.resolve_arp()
- self.vapi.nat44_ed_plugin_enable_disable(sessions=self.max_sessions,
- enable=1)
-
- def tearDown(self):
- if not self.vpp_dead:
- self.logger.debug(self.vapi.cli("show nat44 sessions"))
- super().tearDown()
- if not self.vpp_dead:
- for i in self.pg_interfaces:
- i.unconfig_ip4()
- i.admin_down()
- self.vapi.nat44_ed_plugin_enable_disable(enable=0)
-
- def test_static_dynamic(self):
- """ Create static mapping which matches existing dynamic mapping """
-
- old_timeouts = self.vapi.nat_get_timeouts()
- new_transitory = 2
- self.vapi.nat_set_timeouts(
- udp=old_timeouts.udp,
- tcp_established=old_timeouts.tcp_established,
- icmp=old_timeouts.icmp,
- tcp_transitory=new_transitory)
-
- local_host = self.pg0.remote_ip4
- remote_host = self.pg1.remote_ip4
- nat_intf = self.pg1
- outside_addr = nat_intf.local_ip4
-
- self.vapi.nat44_add_del_address_range(first_ip_address=outside_addr,
- last_ip_address=outside_addr,
- vrf_id=0xffffffff,
- is_add=1,
- flags=0)
- self.vapi.nat44_interface_add_del_feature(
- sw_if_index=self.pg0.sw_if_index,
- is_add=1)
- self.vapi.nat44_interface_add_del_feature(
- sw_if_index=self.pg0.sw_if_index,
- flags=VppEnum.vl_api_nat_config_flags_t.NAT_IS_INSIDE, is_add=1)
- self.vapi.nat44_interface_add_del_output_feature(
- is_add=1,
- sw_if_index=self.pg1.sw_if_index)
-
- thread_index = get_nat44_ed_in2out_worker_index(
- local_host, self.vpp_worker_count)
- port_per_thread = int((0xffff-1024) / max(1, self.vpp_worker_count))
- local_sport = 1024 + random.randint(1, port_per_thread)
- if self.vpp_worker_count > 0:
- local_sport += port_per_thread * (thread_index - 1)
-
- remote_dport = 10000
-
- pg0 = self.pg0
- pg1 = self.pg1
-
- # first setup a dynamic TCP session
-
- # SYN packet in->out
- p = (Ether(src=pg0.remote_mac, dst=pg0.local_mac) /
- IP(src=local_host, dst=remote_host) /
- TCP(sport=local_sport, dport=remote_dport, flags="S"))
- p = self.send_and_expect(pg0, [p], pg1)[0]
-
- self.assertEqual(p[IP].src, outside_addr)
- self.assertEqual(p[TCP].sport, local_sport)
- outside_port = p[TCP].sport
-
- # SYN+ACK packet out->in
- p = (Ether(src=pg1.remote_mac, dst=pg1.local_mac) /
- IP(src=remote_host, dst=outside_addr) /
- TCP(sport=remote_dport, dport=outside_port, flags="SA"))
- self.send_and_expect(pg1, [p], pg0)
-
- # ACK packet in->out
- p = (Ether(src=pg0.remote_mac, dst=pg0.local_mac) /
- IP(src=local_host, dst=remote_host) /
- TCP(sport=local_sport, dport=remote_dport, flags="A"))
- self.send_and_expect(pg0, [p], pg1)
-
- # now we have a session up, create a conflicting static mapping
- self.vapi.nat44_add_del_static_mapping(
- is_add=1,
- local_ip_address=local_host,
- external_ip_address=outside_addr,
- external_sw_if_index=0xffffffff,
- local_port=local_sport,
- external_port=outside_port,
- protocol=IP_PROTOS.tcp,
- flags=VppEnum.vl_api_nat_config_flags_t.NAT_IS_OUT2IN_ONLY)
-
- sessions = self.vapi.nat44_user_session_dump(local_host, 0)
- self.assertEqual(1, len(sessions))
-
- # now send some more data over existing session - it should pass
-
- # in->out
- p = (Ether(src=pg0.remote_mac, dst=pg0.local_mac) /
- IP(src=local_host, dst=remote_host) /
- TCP(sport=local_sport, dport=remote_dport) /
- Raw("zippity zap"))
- self.send_and_expect(pg0, [p], pg1)
-
- # out->in
- p = (Ether(src=pg1.remote_mac, dst=pg1.local_mac) /
- IP(src=remote_host, dst=outside_addr) /
- TCP(sport=remote_dport, dport=outside_port) /
- Raw("flippity flop"))
- self.send_and_expect(pg1, [p], pg0)
-
- # now close the session
-
- # FIN packet in -> out
- p = (Ether(src=pg0.remote_mac, dst=pg0.local_mac) /
- IP(src=local_host, dst=remote_host) /
- TCP(sport=local_sport, dport=remote_dport, flags="FA", seq=100,
- ack=300))
- self.send_and_expect(pg0, [p], pg1)
-
- # FIN+ACK packet out -> in
- p = (Ether(src=pg1.remote_mac, dst=pg1.local_mac) /
- IP(src=remote_host, dst=outside_addr) /
- TCP(sport=remote_dport, dport=outside_port, flags="FA", seq=300,
- ack=101))
- self.send_and_expect(pg1, [p], pg0)
-
- # ACK packet in -> out
- p = (Ether(src=pg0.remote_mac, dst=pg0.local_mac) /
- IP(src=local_host, dst=remote_host) /
- TCP(sport=local_sport, dport=remote_dport, flags="A", seq=101,
- ack=301))
- self.send_and_expect(pg0, [p], pg1)
-
- # session now in transitory timeout
- # try SYN packet in->out - should be dropped
- p = (Ether(src=pg0.remote_mac, dst=pg0.local_mac) /
- IP(src=local_host, dst=remote_host) /
- TCP(sport=local_sport, dport=remote_dport, flags="S"))
- pg0.add_stream(p)
- self.pg_enable_capture()
- self.pg_start()
-
- self.sleep(new_transitory, "wait for transitory timeout")
- pg0.assert_nothing_captured(0)
-
- # session should still exist
- sessions = self.vapi.nat44_user_session_dump(pg0.remote_ip4, 0)
- self.assertEqual(1, len(sessions))
-
- # send FIN+ACK packet in->out - will cause session to be wiped
- # but won't create a new session
- p = (Ether(src=pg0.remote_mac, dst=pg0.local_mac) /
- IP(src=local_host, dst=remote_host) /
- TCP(sport=local_sport, dport=remote_dport, flags="FA", seq=300,
- ack=101))
- pg1.add_stream(p)
- self.pg_enable_capture()
- self.pg_start()
- pg0.assert_nothing_captured(0)
-
- sessions = self.vapi.nat44_user_session_dump(pg0.remote_ip4, 0)
- self.assertEqual(0, len(sessions))
-
- # create a new session and make sure the outside port is remapped
- # SYN packet in->out
-
- p = (Ether(src=pg0.remote_mac, dst=pg0.local_mac) /
- IP(src=local_host, dst=remote_host) /
- TCP(sport=local_sport, dport=remote_dport, flags="S"))
- p = self.send_and_expect(pg0, [p], pg1)[0]
-
- self.assertEqual(p[IP].src, outside_addr)
- self.assertNotEqual(p[TCP].sport, local_sport)
-
- # make sure static mapping works and creates a new session
- # SYN packet out->in
- p = (Ether(src=pg1.remote_mac, dst=pg1.local_mac) /
- IP(src=remote_host, dst=outside_addr) /
- TCP(sport=remote_dport, dport=outside_port, flags="S"))
- self.send_and_expect(pg1, [p], pg0)
-
- sessions = self.vapi.nat44_user_session_dump(pg0.remote_ip4, 0)
- self.assertEqual(2, len(sessions))
-
-
-if __name__ == '__main__':
- unittest.main(testRunner=VppTestRunner)
self.assertEqual(struct.pack("!H", self.udp_port_out),
record[227])
else:
- self.fail(f"Invalid protocol {scapy.compat.orb(record[4])}")
+ self.fail("Invalid protocol")
self.assertEqual(3, nat44_ses_create_num)
self.assertEqual(3, nat44_ses_delete_num)
Code Review / vpp.git / commitdiff