/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Copyright (c) 2020 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:
#include <nat/lib/lib.h>
#include <nat/lib/inlines.h>
-/* default session timeouts */
-#define SNAT_UDP_TIMEOUT 300
-#define SNAT_TCP_TRANSITORY_TIMEOUT 240
-#define SNAT_TCP_ESTABLISHED_TIMEOUT 7440
-#define SNAT_ICMP_TIMEOUT 60
-
/* number of worker handoff frame queue elements */
#define NAT_FQ_NELTS 64
NAT_NEXT_IN2OUT_ED_OUTPUT_SLOW_PATH,
NAT_NEXT_OUT2IN_ED_FAST_PATH,
NAT_NEXT_OUT2IN_ED_SLOW_PATH,
+ NAT_NEXT_OUT2IN_ED_HANDOFF,
NAT_NEXT_IN2OUT_CLASSIFY,
NAT_NEXT_OUT2IN_CLASSIFY,
NAT_N_NEXT,
NAT_IN2OUT_ED_N_ERROR,
} nat_in2out_ed_error_t;
+#define foreach_nat44_handoff_error \
+_(CONGESTION_DROP, "congestion drop") \
+_(SAME_WORKER, "same worker") \
+_(DO_HANDOFF, "do handoff")
+
+typedef enum
+{
+#define _(sym,str) NAT44_HANDOFF_ERROR_##sym,
+ foreach_nat44_handoff_error
+#undef _
+ NAT44_HANDOFF_N_ERROR,
+} nat44_handoff_error_t;
+
#define foreach_nat_out2in_ed_error \
_(UNSUPPORTED_PROTOCOL, "unsupported protocol") \
_(OUT_OF_PORTS, "out of ports") \
#define SNAT_SESSION_FLAG_ENDPOINT_DEPENDENT 16
#define SNAT_SESSION_FLAG_FWD_BYPASS 32
#define SNAT_SESSION_FLAG_AFFINITY 64
-#define SNAT_SESSION_FLAG_OUTPUT_FEATURE 128
-#define SNAT_SESSION_FLAG_EXACT_ADDRESS 256
+#define SNAT_SESSION_FLAG_EXACT_ADDRESS 128
/* NAT interface flags */
#define NAT_INTERFACE_FLAG_IS_INSIDE 1
u32 flags;
int addr_only;
int twice_nat;
- int is_add;
int out2in_only;
int identity_nat;
int exact;
u32 ed_hairpin_dst_node_index;
u32 ed_hairpin_src_node_index;
+ nat44_config_t rconfig;
+ //nat44_config_t cconfig;
+
/* If forwarding is enabled */
u8 forwarding_enabled;
u32 inside_vrf_id;
u32 inside_fib_index;
- /* values of various timeouts */
- u32 udp_timeout;
- u32 tcp_transitory_timeout;
- u32 tcp_established_timeout;
- u32 icmp_timeout;
+ nat_timeouts_t timeouts;
/* TCP MSS clamping */
u16 mss_clamping;
ip4_main_t *ip4_main;
ip_lookup_main_t *ip4_lookup_main;
+ fib_source_t fib_src_hi;
+ fib_source_t fib_src_low;
+
+ /* pat - dynamic mapping enabled or conneciton tracking */
+ u8 pat;
+
/* nat44 plugin enabled */
u8 enabled;
nat_protocol_t proto, u32 vrf_id,
u8 probability, u8 is_add);
-clib_error_t *snat_api_init (vlib_main_t * vm, snat_main_t * sm);
+clib_error_t *nat44_api_hookup (vlib_main_t * vm);
/**
* @brief Set NAT plugin workers
int snat_add_interface_address (snat_main_t * sm, u32 sw_if_index, int is_del,
u8 twice_nat);
-/**
- * @brief Delete NAT44 session
- *
- * @param addr IPv4 address
- * @param port L4 port number
- * @param proto L4 protocol
- * @param vrf_id VRF ID
- * @param is_in 1 = inside network address and port pair, 0 = outside
- *
- * @return 0 on success, non-zero value otherwise
- */
-int nat44_del_session (snat_main_t * sm, ip4_address_t * addr, u16 port,
- nat_protocol_t proto, u32 vrf_id, int is_in);
-
/**
* @brief Delete NAT44 endpoint-dependent session
*
* @return 0 on success, non-zero value otherwise
*/
int nat44_update_session_limit (u32 session_limit, u32 vrf_id);
-/**
- * @brief Free NAT44 ED session data (lookup keys, external address port)
- *
- * @param s NAT session
- * @param thread_index thread index
- * @param is_ha is HA event
- */
-void
-nat44_free_session_data (snat_main_t * sm, snat_session_t * s,
- u32 thread_index, u8 is_ha);
-
-/**
- * @brief Initialize NAT44 data
- *
- * @param tsm per thread data
- */
-void nat44_db_init (snat_main_per_thread_data_t * tsm);
/**
- * @brief Free NAT44 data
- *
- * @param tsm per thread data
+ * @brief Free all NAT44 sessions
*/
-void nat44_db_free (snat_main_per_thread_data_t * tsm);
-
void nat44_sessions_clear ();
/**
snat_user_t * u,
u32 thread_index, f64 now);
-/**
- * @brief Set address and port assignment algorithm for MAP-E CE
- *
- * @param psid Port Set Identifier value
- * @param psid_offset number of offset bits
- * @param psid_length length of PSID
- */
-void nat_set_alloc_addr_and_port_mape (u16 psid, u16 psid_offset,
- u16 psid_length);
-
-/**
- * @brief Set address and port assignment algorithm for port range
- *
- * @param start_port beginning of the port range
- * @param end_port end of the port range
- */
-void nat_set_alloc_addr_and_port_range (u16 start_port, u16 end_port);
-
-/**
- * @brief Set address and port assignment algorithm to default/standard
- */
-void nat_set_alloc_addr_and_port_default (void);
-
/**
* @brief Free outside address and port pair
*
ip4_address_t * addr,
u16 port, nat_protocol_t protocol);
-/**
- * @brief Alloc outside address and port
- *
- * @param addresses vector of outside addresses
- * @param fib_index FIB table index
- * @param thread_index thread index
- * @param port_per_thread number of ports per thread
- * @param snat_thread_index NAT thread index
- *
- * @return 0 on success, non-zero value otherwise
- */
-int snat_alloc_outside_address_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);
-
void expire_per_vrf_sessions (u32 fib_index);
/**
void snat_add_del_addr_to_fib (ip4_address_t * addr,
u8 p_len, u32 sw_if_index, int is_add);
+#if 0
+void
+nat_ha_sadd_ed_cb (ip4_address_t * in_addr, u16 in_port,
+ ip4_address_t * out_addr, u16 out_port,
+ ip4_address_t * eh_addr, u16 eh_port,
+ ip4_address_t * ehn_addr, u16 ehn_port, u8 proto,
+ u32 fib_index, u16 flags, u32 thread_index);
+
+void
+nat_ha_sdel_ed_cb (ip4_address_t * out_addr, u16 out_port,
+ ip4_address_t * eh_addr, u16 eh_port, u8 proto,
+ u32 fib_index, u32 ti);
+
+void
+nat_ha_sref_ed_cb (ip4_address_t * out_addr, u16 out_port,
+ ip4_address_t * eh_addr, u16 eh_port, u8 proto,
+ u32 fib_index, u32 total_pkts, u64 total_bytes,
+ u32 thread_index);
+#endif
+
+int nat_set_outside_address_and_port (snat_address_t *addresses,
+ u32 thread_index, ip4_address_t addr,
+ u16 port, nat_protocol_t protocol);
+
/*
* Why is this here? Because we don't need to touch this layer to
* simply reply to an icmp. We need to change id to a unique
u8 *format_user_kvp (u8 * s, va_list * args);
+u32 get_thread_idx_by_port (u16 e_port);
+
+u8 *format_static_mapping_kvp (u8 *s, va_list *args);
+
+u8 *format_session_kvp (u8 *s, va_list *args);
+
+u8 *format_user_kvp (u8 *s, va_list *args);
+
+u32 nat_calc_bihash_buckets (u32 n_elts);
+
+void nat44_addresses_free (snat_address_t **addresses);
+
#endif /* __included_nat_h__ */
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff