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") \
-_(BAD_ICMP_TYPE, "unsupported ICMP type") \
-_(NO_TRANSLATION, "no translation") \
-_(MAX_SESSIONS_EXCEEDED, "maximum sessions exceeded") \
-_(MAX_USER_SESS_EXCEEDED, "max user sessions exceeded") \
-_(CANNOT_CREATE_USER, "cannot create NAT user") \
-_(NON_SYN, "non-SYN packet try to create session") \
-_(TCP_CLOSED, "drops due to TCP in transitory timeout")
+#define foreach_nat_out2in_ed_error \
+ _ (UNSUPPORTED_PROTOCOL, "unsupported protocol") \
+ _ (OUT_OF_PORTS, "out of ports") \
+ _ (BAD_ICMP_TYPE, "unsupported ICMP type") \
+ _ (NO_TRANSLATION, "no translation") \
+ _ (MAX_SESSIONS_EXCEEDED, "maximum sessions exceeded") \
+ _ (MAX_USER_SESS_EXCEEDED, "max user sessions exceeded") \
+ _ (CANNOT_CREATE_USER, "cannot create NAT user") \
+ _ (NON_SYN, "non-SYN packet try to create session") \
+ _ (TCP_CLOSED, "drops due to TCP in transitory timeout") \
+ _ (HASH_ADD_FAILED, "hash table add failed")
typedef enum
{
#define NAT44_SES_RST 64
/* Session flags */
-#define SNAT_SESSION_FLAG_STATIC_MAPPING 1
-#define SNAT_SESSION_FLAG_UNKNOWN_PROTO 2
-#define SNAT_SESSION_FLAG_LOAD_BALANCING 4
-#define SNAT_SESSION_FLAG_TWICE_NAT 8
-#define SNAT_SESSION_FLAG_ENDPOINT_DEPENDENT 16
-#define SNAT_SESSION_FLAG_FWD_BYPASS 32
-#define SNAT_SESSION_FLAG_AFFINITY 64
-#define SNAT_SESSION_FLAG_EXACT_ADDRESS 128
+#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)
+#define SNAT_SESSION_FLAG_FWD_BYPASS (1 << 5)
+#define SNAT_SESSION_FLAG_AFFINITY (1 << 6)
+#define SNAT_SESSION_FLAG_EXACT_ADDRESS (1 << 7)
+#define SNAT_SESSION_FLAG_HAIRPINNING (1 << 8)
/* NAT interface flags */
#define NAT_INTERFACE_FLAG_IS_INSIDE 1
}) per_vrf_sessions_t;
/* *INDENT-ON* */
+typedef struct
+{
+ ip4_address_t saddr, daddr;
+ u32 fib_index;
+ u16 sport, dport;
+ u16 icmp_id;
+ u8 proto;
+} nat_6t_t;
+
+typedef struct
+{
+#define NAT_FLOW_OP_SADDR_REWRITE (1 << 1)
+#define NAT_FLOW_OP_SPORT_REWRITE (1 << 2)
+#define NAT_FLOW_OP_DADDR_REWRITE (1 << 3)
+#define NAT_FLOW_OP_DPORT_REWRITE (1 << 4)
+#define NAT_FLOW_OP_ICMP_ID_REWRITE (1 << 5)
+#define NAT_FLOW_OP_TXFIB_REWRITE (1 << 6)
+ int ops;
+ nat_6t_t match;
+ nat_6t_t rewrite;
+ uword l3_csum_delta;
+ uword l4_csum_delta;
+} nat_6t_flow_t;
+
+always_inline void
+nat_6t_flow_saddr_rewrite_set (nat_6t_flow_t *f, u32 saddr)
+{
+ f->ops |= NAT_FLOW_OP_SADDR_REWRITE;
+ f->rewrite.saddr.as_u32 = saddr;
+}
+
+always_inline void
+nat_6t_flow_daddr_rewrite_set (nat_6t_flow_t *f, u32 daddr)
+{
+ f->ops |= NAT_FLOW_OP_DADDR_REWRITE;
+ f->rewrite.daddr.as_u32 = daddr;
+}
+
+always_inline void
+nat_6t_flow_sport_rewrite_set (nat_6t_flow_t *f, u32 sport)
+{
+ f->ops |= NAT_FLOW_OP_SPORT_REWRITE;
+ f->rewrite.sport = sport;
+}
+
+always_inline void
+nat_6t_flow_dport_rewrite_set (nat_6t_flow_t *f, u32 dport)
+{
+ f->ops |= NAT_FLOW_OP_DPORT_REWRITE;
+ f->rewrite.dport = dport;
+}
+
+always_inline void
+nat_6t_flow_txfib_rewrite_set (nat_6t_flow_t *f, u32 tx_fib_index)
+{
+ f->ops |= NAT_FLOW_OP_TXFIB_REWRITE;
+ f->rewrite.fib_index = tx_fib_index;
+}
+
+always_inline void
+nat_6t_flow_icmp_id_rewrite_set (nat_6t_flow_t *f, u16 id)
+{
+ f->ops |= NAT_FLOW_OP_ICMP_ID_REWRITE;
+ f->rewrite.icmp_id = id;
+}
+
/* *INDENT-OFF* */
typedef CLIB_PACKED(struct
{
nat_protocol_t nat_proto;
+ nat_6t_flow_t i2o;
+ nat_6t_flow_t o2i;
+
/* Flags */
u32 flags;
clib_bihash_8_8_t out2in;
clib_bihash_8_8_t in2out;
- /* Endpoint dependent sessions lookup tables */
- clib_bihash_16_8_t in2out_ed;
-
/* Find-a-user => src address lookup */
clib_bihash_8_8_t user_hash;
/* Static mapping pool */
snat_static_mapping_t *static_mappings;
- /* Endpoint-dependent out2in mappings */
- clib_bihash_16_8_t out2in_ed;
+ /* Endpoint dependent lookup table */
+ clib_bihash_16_8_t flow_hash;
/* Interface pool */
snat_interface_t *interfaces;
u32 hairpinning_node_index;
u32 hairpin_dst_node_index;
u32 hairpin_src_node_index;
- u32 ed_hairpinning_node_index;
- u32 ed_hairpin_dst_node_index;
- u32 ed_hairpin_src_node_index;
nat44_config_t rconfig;
//nat44_config_t cconfig;
nat_protocol_t * proto, void *d, void *e,
u8 * dont_translate);
-/* ICMP endpoint-dependent session match functions */
-u32 icmp_match_out2in_ed (snat_main_t * sm, vlib_node_runtime_t * node,
- u32 thread_index, vlib_buffer_t * b0,
- ip4_header_t * ip0, ip4_address_t * addr,
- u16 * port, u32 * fib_index, nat_protocol_t * proto,
- void *d, void *e, u8 * dont_translate);
-u32 icmp_match_in2out_ed (snat_main_t * sm, vlib_node_runtime_t * node,
- u32 thread_index, vlib_buffer_t * b0,
- ip4_header_t * ip0, ip4_address_t * addr,
- u16 * port, u32 * fib_index, nat_protocol_t * proto,
- void *d, void *e, u8 * dont_translate);
-
u32 icmp_in2out (snat_main_t * sm, vlib_buffer_t * b0, ip4_header_t * ip0,
icmp46_header_t * icmp0, u32 sw_if_index0, u32 rx_fib_index0,
vlib_node_runtime_t * node, u32 next0, u32 thread_index,
void *d, void *e);
/* hairpinning functions */
-u32 snat_icmp_hairpinning (snat_main_t * sm, vlib_buffer_t * b0,
- ip4_header_t * ip0, icmp46_header_t * icmp0,
- int is_ed);
+u32 snat_icmp_hairpinning (snat_main_t *sm, vlib_buffer_t *b0,
+ ip4_header_t *ip0, icmp46_header_t *icmp0);
+
void nat_hairpinning_sm_unknown_proto (snat_main_t * sm, vlib_buffer_t * b,
ip4_header_t * ip);
-void nat44_ed_hairpinning_unknown_proto (snat_main_t * sm, vlib_buffer_t * b,
- ip4_header_t * ip);
-int snat_hairpinning (vlib_main_t * vm, vlib_node_runtime_t * node,
- snat_main_t * sm, vlib_buffer_t * b0,
- ip4_header_t * ip0, udp_header_t * udp0,
- tcp_header_t * tcp0, u32 proto0, int is_ed,
+int snat_hairpinning (vlib_main_t *vm, vlib_node_runtime_t *node,
+ snat_main_t *sm, vlib_buffer_t *b0, ip4_header_t *ip0,
+ udp_header_t *udp0, tcp_header_t *tcp0, u32 proto0,
int do_trace);
/* Call back functions for clib_bihash_add_or_overwrite_stale */
-int nat44_i2o_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg);
-int nat44_o2i_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg);
int nat44_i2o_is_idle_session_cb (clib_bihash_kv_8_8_t * kv, void *arg);
int nat44_o2i_is_idle_session_cb (clib_bihash_kv_8_8_t * kv, void *arg);
void nat44_addresses_free (snat_address_t **addresses);
+typedef enum
+{
+ NAT_ED_TRNSL_ERR_SUCCESS = 0,
+ NAT_ED_TRNSL_ERR_TRANSLATION_FAILED = 1,
+ NAT_ED_TRNSL_ERR_FLOW_MISMATCH = 2,
+} nat_translation_error_e;
+
+nat_translation_error_e
+nat_6t_flow_buf_translate (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip,
+ 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_ed_translation_error;
+format_function_t format_nat_6t_flow;
+format_function_t format_ed_session_kvp;
+
#endif /* __included_nat_h__ */
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff