From 0eaf4e6784efb2d058fe2f031578251b6bcc0aa8 Mon Sep 17 00:00:00 2001 From: Filip Varga Date: Wed, 17 Feb 2021 14:34:54 +0100 Subject: nat: Final NAT44 EI/ED split patch This patch achieves complete separation of endpoint-dependent and endpoint-independent IPv4 NAT features. Some common stuff is also moved to NAT library. Type: refactor Change-Id: I52468b7e2b5ac28958a2baf8e2ea01787322e801 Signed-off-by: Filip Varga --- src/plugins/nat/nat44-ei/nat44_ei_out2in.c | 607 ++++++++++++++--------------- 1 file changed, 293 insertions(+), 314 deletions(-) (limited to 'src/plugins/nat/nat44-ei/nat44_ei_out2in.c') diff --git a/src/plugins/nat/nat44-ei/nat44_ei_out2in.c b/src/plugins/nat/nat44-ei/nat44_ei_out2in.c index ca3c272a26c..1d5ebd33cd5 100644 --- a/src/plugins/nat/nat44-ei/nat44_ei_out2in.c +++ b/src/plugins/nat/nat44-ei/nat44_ei_out2in.c @@ -14,41 +14,40 @@ */ /** * @file - * @brief NAT44 endpoint-dependent outside to inside network translation + * @brief NAT44 EI outside to inside network translation */ #include -#include +#include #include -#include #include +#include #include -#include -#include -#include -#include -#include -#include #include #include -#include + +#include +#include +#include +#include +#include typedef struct { u32 sw_if_index; u32 next_index; u32 session_index; -} snat_out2in_trace_t; +} nat44_ei_out2in_trace_t; /* packet trace format function */ static u8 * -format_snat_out2in_trace (u8 * s, va_list * args) +format_nat44_ei_out2in_trace (u8 *s, va_list *args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - snat_out2in_trace_t *t = va_arg (*args, snat_out2in_trace_t *); + nat44_ei_out2in_trace_t *t = va_arg (*args, nat44_ei_out2in_trace_t *); s = format (s, @@ -58,66 +57,67 @@ format_snat_out2in_trace (u8 * s, va_list * args) } static u8 * -format_snat_out2in_fast_trace (u8 * s, va_list * args) +format_nat44_ei_out2in_fast_trace (u8 *s, va_list *args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - snat_out2in_trace_t *t = va_arg (*args, snat_out2in_trace_t *); + nat44_ei_out2in_trace_t *t = va_arg (*args, nat44_ei_out2in_trace_t *); s = format (s, "NAT44_OUT2IN_FAST: sw_if_index %d, next index %d", t->sw_if_index, t->next_index); return s; } -#define foreach_snat_out2in_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") \ -_(CANNOT_CREATE_USER, "cannot create NAT user") +#define foreach_nat44_ei_out2in_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") \ + _ (CANNOT_CREATE_USER, "cannot create NAT user") typedef enum { -#define _(sym,str) SNAT_OUT2IN_ERROR_##sym, - foreach_snat_out2in_error +#define _(sym, str) NAT44_EI_OUT2IN_ERROR_##sym, + foreach_nat44_ei_out2in_error #undef _ - SNAT_OUT2IN_N_ERROR, -} snat_out2in_error_t; + NAT44_EI_OUT2IN_N_ERROR, +} nat44_ei_out2in_error_t; -static char *snat_out2in_error_strings[] = { +static char *nat44_ei_out2in_error_strings[] = { #define _(sym,string) string, - foreach_snat_out2in_error + foreach_nat44_ei_out2in_error #undef _ }; typedef enum { - SNAT_OUT2IN_NEXT_DROP, - SNAT_OUT2IN_NEXT_LOOKUP, - SNAT_OUT2IN_NEXT_ICMP_ERROR, - SNAT_OUT2IN_N_NEXT, -} snat_out2in_next_t; + NAT44_EI_OUT2IN_NEXT_DROP, + NAT44_EI_OUT2IN_NEXT_LOOKUP, + NAT44_EI_OUT2IN_NEXT_ICMP_ERROR, + NAT44_EI_OUT2IN_N_NEXT, +} nat44_ei_out2in_next_t; #ifndef CLIB_MARCH_VARIANT int nat44_o2i_is_idle_session_cb (clib_bihash_kv_8_8_t * kv, void *arg) { - snat_main_t *sm = &snat_main; - nat44_is_idle_session_ctx_t *ctx = arg; - snat_session_t *s; + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_is_idle_session_ctx_t *ctx = arg; + nat44_ei_session_t *s; u64 sess_timeout_time; - snat_main_per_thread_data_t *tsm = vec_elt_at_index (sm->per_thread_data, - ctx->thread_index); + nat44_ei_main_per_thread_data_t *tnm = + vec_elt_at_index (nm->per_thread_data, ctx->thread_index); clib_bihash_kv_8_8_t s_kv; - s = pool_elt_at_index (tsm->sessions, kv->value); - sess_timeout_time = s->last_heard + (f64) nat44_session_get_timeout (sm, s); + s = pool_elt_at_index (tnm->sessions, kv->value); + sess_timeout_time = s->last_heard + (f64) nat_session_get_timeout ( + &nm->timeouts, s->nat_proto, s->state); if (ctx->now >= sess_timeout_time) { init_nat_i2o_k (&s_kv, s); - if (clib_bihash_add_del_8_8 (&sm->in2out, &s_kv, 0)) - nat_elog_warn ("out2in key del failed"); + 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, @@ -135,12 +135,12 @@ nat44_o2i_is_idle_session_cb (clib_bihash_kv_8_8_t * kv, void *arg) s->ext_host_port, s->nat_proto, s->out2in.fib_index, ctx->thread_index); - if (!snat_is_session_static (s)) - snat_free_outside_address_and_port (sm->addresses, ctx->thread_index, - &s->out2in.addr, s->out2in.port, - s->nat_proto); + if (!nat44_ei_is_session_static (s)) + nat44_ei_free_outside_address_and_port ( + nm->addresses, ctx->thread_index, &s->out2in.addr, s->out2in.port, + s->nat_proto); - nat44_delete_session (sm, s, ctx->thread_index); + nat44_ei_delete_session (nm, s, ctx->thread_index); return 1; } @@ -154,63 +154,56 @@ nat44_o2i_is_idle_session_cb (clib_bihash_kv_8_8_t * kv, void *arg) * Create NAT session initiated by host from external network with static * mapping. * - * @param sm NAT main. + * @param nm NAT main. * @param b0 Vlib buffer. * @param in2out In2out NAT44 session key. * @param out2in Out2in NAT44 session key. * @param node Vlib node. * - * @returns SNAT session if successfully created otherwise 0. + * @returns NAT44_EI session if successfully created otherwise 0. */ -static inline snat_session_t * -create_session_for_static_mapping (snat_main_t * sm, - vlib_buffer_t * b0, - ip4_address_t i2o_addr, - u16 i2o_port, - u32 i2o_fib_index, - ip4_address_t o2i_addr, - u16 o2i_port, - u32 o2i_fib_index, - nat_protocol_t proto, - vlib_node_runtime_t * node, - u32 thread_index, f64 now) +static inline nat44_ei_session_t * +create_session_for_static_mapping ( + nat44_ei_main_t *nm, vlib_buffer_t *b0, ip4_address_t i2o_addr, u16 i2o_port, + u32 i2o_fib_index, ip4_address_t o2i_addr, u16 o2i_port, u32 o2i_fib_index, + nat_protocol_t proto, vlib_node_runtime_t *node, u32 thread_index, f64 now) { - snat_user_t *u; - snat_session_t *s; + nat44_ei_user_t *u; + nat44_ei_session_t *s; clib_bihash_kv_8_8_t kv0; ip4_header_t *ip0; udp_header_t *udp0; - nat44_is_idle_session_ctx_t ctx0; + nat44_ei_is_idle_session_ctx_t ctx0; - if (PREDICT_FALSE (nat44_ei_maximum_sessions_exceeded (sm, thread_index))) + if (PREDICT_FALSE (nat44_ei_maximum_sessions_exceeded (nm, thread_index))) { - b0->error = node->errors[SNAT_OUT2IN_ERROR_MAX_SESSIONS_EXCEEDED]; - nat_elog_notice ("maximum sessions exceeded"); + b0->error = node->errors[NAT44_EI_OUT2IN_ERROR_MAX_SESSIONS_EXCEEDED]; + nat_elog_notice (nm, "maximum sessions exceeded"); return 0; } ip0 = vlib_buffer_get_current (b0); udp0 = ip4_next_header (ip0); - u = nat_user_get_or_create (sm, &i2o_addr, i2o_fib_index, thread_index); + u = nat44_ei_user_get_or_create (nm, &i2o_addr, i2o_fib_index, thread_index); if (!u) { - b0->error = node->errors[SNAT_OUT2IN_ERROR_CANNOT_CREATE_USER]; + b0->error = node->errors[NAT44_EI_OUT2IN_ERROR_CANNOT_CREATE_USER]; return 0; } - s = nat_session_alloc_or_recycle (sm, u, thread_index, now); + s = nat44_ei_session_alloc_or_recycle (nm, u, thread_index, now); if (!s) { - nat44_delete_user_with_no_session (sm, u, thread_index); - nat_elog_warn ("create NAT session failed"); + nat44_ei_delete_user_with_no_session (nm, u, thread_index); + nat_elog_warn (nm, "create NAT session failed"); return 0; } - s->flags |= SNAT_SESSION_FLAG_STATIC_MAPPING; + s->flags |= NAT44_EI_SESSION_FLAG_STATIC_MAPPING; s->ext_host_addr.as_u32 = ip0->src_address.as_u32; s->ext_host_port = udp0->src_port; - user_session_increment (sm, u, 1 /* static */ ); + nat44_ei_user_session_increment (nm, u, 1 /* static */); s->in2out.addr = i2o_addr; s->in2out.port = i2o_port; s->in2out.fib_index = i2o_fib_index; @@ -223,16 +216,16 @@ create_session_for_static_mapping (snat_main_t * sm, ctx0.now = now; ctx0.thread_index = thread_index; init_nat_i2o_kv (&kv0, s, thread_index, - s - sm->per_thread_data[thread_index].sessions); + s - nm->per_thread_data[thread_index].sessions); if (clib_bihash_add_or_overwrite_stale_8_8 ( - &sm->in2out, &kv0, nat44_i2o_is_idle_session_cb, &ctx0)) - nat_elog_notice ("in2out key add failed"); + &nm->in2out, &kv0, nat44_i2o_is_idle_session_cb, &ctx0)) + nat_elog_notice (nm, "in2out key add failed"); init_nat_o2i_kv (&kv0, s, thread_index, - s - sm->per_thread_data[thread_index].sessions); + s - nm->per_thread_data[thread_index].sessions); if (clib_bihash_add_or_overwrite_stale_8_8 ( - &sm->out2in, &kv0, nat44_o2i_is_idle_session_cb, &ctx0)) - nat_elog_notice ("out2in key add failed"); + &nm->out2in, &kv0, nat44_o2i_is_idle_session_cb, &ctx0)) + nat_elog_notice (nm, "out2in key add failed"); /* log NAT event */ nat_ipfix_logging_nat44_ses_create (thread_index, @@ -255,9 +248,9 @@ create_session_for_static_mapping (snat_main_t * sm, } #ifndef CLIB_MARCH_VARIANT -static_always_inline snat_out2in_error_t -icmp_get_key (vlib_buffer_t * b, ip4_header_t * ip0, - ip4_address_t * addr, u16 * port, nat_protocol_t * nat_proto) +static_always_inline nat44_ei_out2in_error_t +icmp_get_key (vlib_buffer_t *b, ip4_header_t *ip0, ip4_address_t *addr, + u16 *port, nat_protocol_t *nat_proto) { icmp46_header_t *icmp0; icmp_echo_header_t *echo0, *inner_echo0 = 0; @@ -293,7 +286,7 @@ icmp_get_key (vlib_buffer_t * b, ip4_header_t * ip0, *port = ((tcp_udp_header_t *) l4_header)->src_port; break; default: - return SNAT_OUT2IN_ERROR_UNSUPPORTED_PROTOCOL; + return NAT44_EI_OUT2IN_ERROR_UNSUPPORTED_PROTOCOL; } } return -1; /* success */ @@ -303,7 +296,7 @@ icmp_get_key (vlib_buffer_t * b, ip4_header_t * ip0, * Get address and port values to be used for ICMP packet translation * and create session if needed * - * @param[in,out] sm NAT main + * @param[in,out] nm NAT main * @param[in,out] node NAT node runtime * @param[in] thread_index thread index * @param[in,out] b0 buffer containing packet to be translated @@ -315,15 +308,16 @@ icmp_get_key (vlib_buffer_t * b, ip4_header_t * ip0, * @param e optional parameter */ u32 -icmp_match_out2in_slow (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, snat_session_t **p_s0, - u8 *dont_translate) +nat44_ei_icmp_match_out2in_slow (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, + nat44_ei_session_t **p_s0, u8 *dont_translate) { - snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index]; + nat44_ei_main_t *nm = &nat44_ei_main; + nat44_ei_main_per_thread_data_t *tnm = &nm->per_thread_data[thread_index]; u32 sw_if_index0; - snat_session_t *s0 = 0; + nat44_ei_session_t *s0 = 0; clib_bihash_kv_8_8_t kv0, value0; u8 is_addr_only; u32 next0 = ~0; @@ -340,8 +334,8 @@ icmp_match_out2in_slow (snat_main_t *sm, vlib_node_runtime_t *node, err = icmp_get_key (b0, ip0, addr, port, proto); if (err != -1) { - b0->error = node->errors[SNAT_OUT2IN_ERROR_UNSUPPORTED_PROTOCOL]; - next0 = SNAT_OUT2IN_NEXT_DROP; + b0->error = node->errors[NAT44_EI_OUT2IN_ERROR_UNSUPPORTED_PROTOCOL]; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto out; } @@ -350,7 +344,7 @@ icmp_match_out2in_slow (snat_main_t *sm, vlib_node_runtime_t *node, u32 mapping_fib_index; init_nat_k (&kv0, *addr, *port, *fib_index, *proto); - if (clib_bihash_search_8_8 (&sm->out2in, &kv0, &value0)) + if (clib_bihash_search_8_8 (&nm->out2in, &kv0, &value0)) { /* Try to match static mapping by external address and port, destination address and port in packet */ @@ -358,17 +352,18 @@ icmp_match_out2in_slow (snat_main_t *sm, vlib_node_runtime_t *node, *addr, *port, *fib_index, *proto, &mapping_addr, &mapping_port, &mapping_fib_index, 1, &is_addr_only, &identity_nat)) { - if (!sm->forwarding_enabled) + if (!nm->forwarding_enabled) { /* Don't NAT packet aimed at the intfc address */ - if (PREDICT_FALSE (is_interface_addr (sm, node, sw_if_index0, - ip0->dst_address.as_u32))) + if (PREDICT_FALSE (nat44_ei_is_interface_addr ( + nm->ip4_main, node, sw_if_index0, + ip0->dst_address.as_u32))) { *dont_translate = 1; goto out; } - b0->error = node->errors[SNAT_OUT2IN_ERROR_NO_TRANSLATION]; - next0 = SNAT_OUT2IN_NEXT_DROP; + b0->error = node->errors[NAT44_EI_OUT2IN_ERROR_NO_TRANSLATION]; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto out; } else @@ -384,8 +379,8 @@ icmp_match_out2in_slow (snat_main_t *sm, vlib_node_runtime_t *node, && (vnet_buffer (b0)->ip.reass.icmp_type_or_tcp_flags != ICMP4_echo_request || !is_addr_only))) { - b0->error = node->errors[SNAT_OUT2IN_ERROR_BAD_ICMP_TYPE]; - next0 = SNAT_OUT2IN_NEXT_DROP; + b0->error = node->errors[NAT44_EI_OUT2IN_ERROR_BAD_ICMP_TYPE]; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto out; } @@ -395,15 +390,13 @@ icmp_match_out2in_slow (snat_main_t *sm, vlib_node_runtime_t *node, goto out; } /* Create session initiated by host from external network */ - s0 = - create_session_for_static_mapping (sm, b0, mapping_addr, mapping_port, - mapping_fib_index, *addr, *port, - *fib_index, *proto, node, - thread_index, vlib_time_now (vm)); + s0 = create_session_for_static_mapping ( + nm, b0, mapping_addr, mapping_port, mapping_fib_index, *addr, *port, + *fib_index, *proto, node, thread_index, vlib_time_now (vm)); if (!s0) { - next0 = SNAT_OUT2IN_NEXT_DROP; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto out; } } @@ -417,12 +410,12 @@ icmp_match_out2in_slow (snat_main_t *sm, vlib_node_runtime_t *node, && !icmp_type_is_error_message (vnet_buffer (b0)->ip. reass.icmp_type_or_tcp_flags))) { - b0->error = node->errors[SNAT_OUT2IN_ERROR_BAD_ICMP_TYPE]; - next0 = SNAT_OUT2IN_NEXT_DROP; + b0->error = node->errors[NAT44_EI_OUT2IN_ERROR_BAD_ICMP_TYPE]; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto out; } - s0 = pool_elt_at_index (tsm->sessions, + s0 = pool_elt_at_index (tnm->sessions, nat_value_get_session_index (&value0)); } @@ -440,27 +433,15 @@ out: #endif #ifndef CLIB_MARCH_VARIANT -/** - * Get address and port values to be used for ICMP packet translation - * - * @param[in] sm NAT main - * @param[in,out] node NAT node runtime - * @param[in] thread_index thread index - * @param[in,out] b0 buffer containing packet to be translated - * @param[in,out] ip0 ip header - * @param[out] p_proto protocol used for matching - * @param[out] p_value address and port after NAT translation - * @param[out] p_dont_translate if packet should not be translated - * @param d optional parameter - * @param e optional parameter - */ u32 -icmp_match_out2in_fast (snat_main_t *sm, vlib_node_runtime_t *node, - u32 thread_index, vlib_buffer_t *b0, ip4_header_t *ip0, - ip4_address_t *mapping_addr, u16 *mapping_port, - u32 *mapping_fib_index, nat_protocol_t *proto, - snat_session_t **p_s0, u8 *dont_translate) +nat44_ei_icmp_match_out2in_fast (vlib_node_runtime_t *node, u32 thread_index, + vlib_buffer_t *b0, ip4_header_t *ip0, + ip4_address_t *mapping_addr, + u16 *mapping_port, u32 *mapping_fib_index, + nat_protocol_t *proto, + nat44_ei_session_t **p_s0, u8 *dont_translate) { + nat44_ei_main_t *nm = &nat44_ei_main; u32 sw_if_index0; u32 rx_fib_index0; u8 is_addr_only; @@ -477,7 +458,7 @@ icmp_match_out2in_fast (snat_main_t *sm, vlib_node_runtime_t *node, if (err != -1) { b0->error = node->errors[err]; - next0 = SNAT_OUT2IN_NEXT_DROP; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto out; } if (nat44_ei_static_mapping_match (addr, port, rx_fib_index0, *proto, @@ -485,13 +466,14 @@ icmp_match_out2in_fast (snat_main_t *sm, vlib_node_runtime_t *node, mapping_fib_index, 1, &is_addr_only, 0)) { /* Don't NAT packet aimed at the intfc address */ - if (is_interface_addr (sm, node, sw_if_index0, ip0->dst_address.as_u32)) + if (nat44_ei_is_interface_addr (nm->ip4_main, node, sw_if_index0, + ip0->dst_address.as_u32)) { *dont_translate = 1; goto out; } - b0->error = node->errors[SNAT_OUT2IN_ERROR_NO_TRANSLATION]; - next0 = SNAT_OUT2IN_NEXT_DROP; + b0->error = node->errors[NAT44_EI_OUT2IN_ERROR_NO_TRANSLATION]; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto out; } @@ -502,8 +484,8 @@ icmp_match_out2in_fast (snat_main_t *sm, vlib_node_runtime_t *node, && !icmp_type_is_error_message (vnet_buffer (b0)->ip. reass.icmp_type_or_tcp_flags))) { - b0->error = node->errors[SNAT_OUT2IN_ERROR_BAD_ICMP_TYPE]; - next0 = SNAT_OUT2IN_NEXT_DROP; + b0->error = node->errors[NAT44_EI_OUT2IN_ERROR_BAD_ICMP_TYPE]; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto out; } @@ -512,18 +494,20 @@ out: } #endif -u32 icmp_out2in (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, - snat_session_t **p_s0); +u32 nat44_ei_icmp_out2in (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, + nat44_ei_session_t **p_s0); #ifndef CLIB_MARCH_VARIANT u32 -icmp_out2in (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, - snat_session_t **p_s0) +nat44_ei_icmp_out2in (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, nat44_ei_session_t **p_s0) { + nat44_ei_main_t *nm = &nat44_ei_main; icmp_echo_header_t *echo0, *inner_echo0 = 0; ip4_header_t *inner_ip0 = 0; void *l4_header = 0; @@ -542,12 +526,22 @@ icmp_out2in (snat_main_t *sm, vlib_buffer_t *b0, ip4_header_t *ip0, echo0 = (icmp_echo_header_t *) (icmp0 + 1); - next0_tmp = - sm->icmp_match_out2in_cb (sm, node, thread_index, b0, ip0, &addr, &port, - &fib_index, &proto, p_s0, &dont_translate); + if (PREDICT_TRUE (nm->pat)) + { + next0_tmp = nat44_ei_icmp_match_out2in_slow ( + node, thread_index, b0, ip0, &addr, &port, &fib_index, &proto, p_s0, + &dont_translate); + } + else + { + next0_tmp = nat44_ei_icmp_match_out2in_fast ( + node, thread_index, b0, ip0, &addr, &port, &fib_index, &proto, p_s0, + &dont_translate); + } + if (next0_tmp != ~0) next0 = next0_tmp; - if (next0 == SNAT_OUT2IN_NEXT_DROP || dont_translate) + if (next0 == NAT44_EI_OUT2IN_NEXT_DROP || dont_translate) goto out; if (PREDICT_TRUE (!ip4_is_fragment (ip0))) @@ -561,7 +555,7 @@ icmp_out2in (snat_main_t *sm, vlib_buffer_t *b0, ip4_header_t *ip0, checksum0 = ~ip_csum_fold (sum0); if (checksum0 != 0 && checksum0 != 0xffff) { - next0 = SNAT_OUT2IN_NEXT_DROP; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto out; } } @@ -604,7 +598,7 @@ icmp_out2in (snat_main_t *sm, vlib_buffer_t *b0, ip4_header_t *ip0, if (!ip4_header_checksum_is_valid (inner_ip0)) { - next0 = SNAT_OUT2IN_NEXT_DROP; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto out; } @@ -656,47 +650,42 @@ out: #endif static inline u32 -icmp_out2in_slow_path (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, f64 now, - u32 thread_index, snat_session_t ** p_s0) +nat44_ei_icmp_out2in_slow_path (nat44_ei_main_t *nm, 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, f64 now, + u32 thread_index, nat44_ei_session_t **p_s0) { vlib_main_t *vm = vlib_get_main (); - next0 = icmp_out2in (sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node, - next0, thread_index, p_s0); - snat_session_t *s0 = *p_s0; - if (PREDICT_TRUE (next0 != SNAT_OUT2IN_NEXT_DROP && s0)) + next0 = nat44_ei_icmp_out2in (b0, ip0, icmp0, sw_if_index0, rx_fib_index0, + node, next0, thread_index, p_s0); + nat44_ei_session_t *s0 = *p_s0; + if (PREDICT_TRUE (next0 != NAT44_EI_OUT2IN_NEXT_DROP && s0)) { /* Accounting */ nat44_ei_session_update_counters ( s0, now, vlib_buffer_length_in_chain (vm, b0), thread_index); /* Per-user LRU list maintenance */ - nat44_session_update_lru (sm, s0, thread_index); + nat44_ei_session_update_lru (nm, s0, thread_index); } return next0; } static int -nat_out2in_sm_unknown_proto (snat_main_t * sm, - vlib_buffer_t * b, - ip4_header_t * ip, u32 rx_fib_index) +nat_out2in_sm_unknown_proto (nat44_ei_main_t *nm, vlib_buffer_t *b, + ip4_header_t *ip, u32 rx_fib_index) { clib_bihash_kv_8_8_t kv, value; - snat_static_mapping_t *m; + nat44_ei_static_mapping_t *m; u32 old_addr, new_addr; ip_csum_t sum; init_nat_k (&kv, ip->dst_address, 0, 0, 0); - if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) + if (clib_bihash_search_8_8 (&nm->static_mapping_by_external, &kv, &value)) return 1; - m = pool_elt_at_index (sm->static_mappings, value.value); + m = pool_elt_at_index (nm->static_mappings, value.value); old_addr = ip->dst_address.as_u32; new_addr = ip->dst_address.as_u32 = m->local_addr.as_u32; @@ -708,15 +697,14 @@ nat_out2in_sm_unknown_proto (snat_main_t * sm, return 0; } -VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +VLIB_NODE_FN (nat44_ei_out2in_node) +(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) { u32 n_left_from, *from; - snat_main_t *sm = &snat_main; + nat44_ei_main_t *nm = &nat44_ei_main; f64 now = vlib_time_now (vm); u32 thread_index = vm->thread_index; - snat_main_per_thread_data_t *tsm = &sm->per_thread_data[thread_index]; + nat44_ei_main_per_thread_data_t *tnm = &nm->per_thread_data[thread_index]; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; @@ -728,8 +716,8 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, while (n_left_from >= 2) { vlib_buffer_t *b0, *b1; - u32 next0 = SNAT_OUT2IN_NEXT_LOOKUP; - u32 next1 = SNAT_OUT2IN_NEXT_LOOKUP; + u32 next0 = NAT44_EI_OUT2IN_NEXT_LOOKUP; + u32 next1 = NAT44_EI_OUT2IN_NEXT_LOOKUP; u32 sw_if_index0, sw_if_index1; ip4_header_t *ip0, *ip1; ip_csum_t sum0, sum1; @@ -742,7 +730,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, icmp46_header_t *icmp0, *icmp1; u32 rx_fib_index0, rx_fib_index1; u32 proto0, proto1; - snat_session_t *s0 = 0, *s1 = 0; + nat44_ei_session_t *s0 = 0, *s1 = 0; clib_bihash_kv_8_8_t kv0, kv1, value0, value1; u8 identity_nat0, identity_nat1; ip4_address_t sm_addr0, sm_addr1; @@ -778,8 +766,8 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, icmp0 = (icmp46_header_t *) udp0; sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - rx_fib_index0 = vec_elt (sm->ip4_main->fib_index_by_sw_if_index, - sw_if_index0); + rx_fib_index0 = + vec_elt (nm->ip4_main->fib_index_by_sw_if_index, sw_if_index0); if (PREDICT_FALSE (ip0->ttl == 1)) { @@ -787,7 +775,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, icmp4_error_set_vnet_buffer (b0, ICMP4_time_exceeded, ICMP4_time_exceeded_ttl_exceeded_in_transit, 0); - next0 = SNAT_OUT2IN_NEXT_ICMP_ERROR; + next0 = NAT44_EI_OUT2IN_NEXT_ICMP_ERROR; goto trace0; } @@ -795,16 +783,16 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_OTHER)) { - if (nat_out2in_sm_unknown_proto (sm, b0, ip0, rx_fib_index0)) + if (nat_out2in_sm_unknown_proto (nm, b0, ip0, rx_fib_index0)) { - if (!sm->forwarding_enabled) + if (!nm->forwarding_enabled) { b0->error = - node->errors[SNAT_OUT2IN_ERROR_UNSUPPORTED_PROTOCOL]; - next0 = SNAT_OUT2IN_NEXT_DROP; + node->errors[NAT44_EI_OUT2IN_ERROR_UNSUPPORTED_PROTOCOL]; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; } } - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.other, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.other, thread_index, sw_if_index0, 1); goto trace0; @@ -812,10 +800,10 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP)) { - next0 = icmp_out2in_slow_path - (sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node, - next0, now, thread_index, &s0); - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.icmp, + next0 = nat44_ei_icmp_out2in_slow_path ( + nm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node, next0, now, + thread_index, &s0); + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.icmp, thread_index, sw_if_index0, 1); goto trace0; } @@ -823,7 +811,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, init_nat_k (&kv0, ip0->dst_address, vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0, proto0); - if (clib_bihash_search_8_8 (&sm->out2in, &kv0, &value0)) + if (clib_bihash_search_8_8 (&nm->out2in, &kv0, &value0)) { /* Try to match static mapping by external address and port, destination address and port in packet */ @@ -845,10 +833,11 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, goto trace0; } - if (!sm->forwarding_enabled) + if (!nm->forwarding_enabled) { - b0->error = node->errors[SNAT_OUT2IN_ERROR_NO_TRANSLATION]; - next0 = SNAT_OUT2IN_NEXT_DROP; + b0->error = + node->errors[NAT44_EI_OUT2IN_ERROR_NO_TRANSLATION]; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; } goto trace0; } @@ -857,22 +846,18 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, goto trace0; /* Create session initiated by host from external network */ - s0 = create_session_for_static_mapping (sm, b0, - sm_addr0, sm_port0, - sm_fib_index0, - ip0->dst_address, - vnet_buffer (b0)->ip. - reass.l4_dst_port, - rx_fib_index0, proto0, node, - thread_index, now); + s0 = create_session_for_static_mapping ( + nm, b0, sm_addr0, sm_port0, sm_fib_index0, ip0->dst_address, + vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0, proto0, + node, thread_index, now); if (!s0) { - next0 = SNAT_OUT2IN_NEXT_DROP; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto trace0; } } else - s0 = pool_elt_at_index (tsm->sessions, + s0 = pool_elt_at_index (tnm->sessions, nat_value_get_session_index (&value0)); old_addr0 = ip0->dst_address.as_u32; @@ -901,7 +886,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, length /* changed member */ ); tcp0->checksum = ip_csum_fold (sum0); } - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.tcp, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.tcp, thread_index, sw_if_index0, 1); } else @@ -922,7 +907,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, udp0->checksum = ip_csum_fold (sum0); } } - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.udp, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.udp, thread_index, sw_if_index0, 1); } @@ -930,24 +915,24 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, nat44_ei_session_update_counters ( s0, now, vlib_buffer_length_in_chain (vm, b0), thread_index); /* Per-user LRU list maintenance */ - nat44_session_update_lru (sm, s0, thread_index); + nat44_ei_session_update_lru (nm, s0, thread_index); trace0: if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && (b0->flags & VLIB_BUFFER_IS_TRACED))) { - snat_out2in_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); + nat44_ei_out2in_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); t->sw_if_index = sw_if_index0; t->next_index = next0; t->session_index = ~0; if (s0) - t->session_index = - s0 - sm->per_thread_data[thread_index].sessions; + t->session_index = s0 - nm->per_thread_data[thread_index].sessions; } - if (next0 == SNAT_OUT2IN_NEXT_DROP) + if (next0 == NAT44_EI_OUT2IN_NEXT_DROP) { - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.drops, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.drops, thread_index, sw_if_index0, 1); } @@ -958,8 +943,8 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, icmp1 = (icmp46_header_t *) udp1; sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; - rx_fib_index1 = vec_elt (sm->ip4_main->fib_index_by_sw_if_index, - sw_if_index1); + rx_fib_index1 = + vec_elt (nm->ip4_main->fib_index_by_sw_if_index, sw_if_index1); if (PREDICT_FALSE (ip1->ttl == 1)) { @@ -967,7 +952,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, icmp4_error_set_vnet_buffer (b1, ICMP4_time_exceeded, ICMP4_time_exceeded_ttl_exceeded_in_transit, 0); - next1 = SNAT_OUT2IN_NEXT_ICMP_ERROR; + next1 = NAT44_EI_OUT2IN_NEXT_ICMP_ERROR; goto trace1; } @@ -975,26 +960,26 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, if (PREDICT_FALSE (proto1 == NAT_PROTOCOL_OTHER)) { - if (nat_out2in_sm_unknown_proto (sm, b1, ip1, rx_fib_index1)) + if (nat_out2in_sm_unknown_proto (nm, b1, ip1, rx_fib_index1)) { - if (!sm->forwarding_enabled) + if (!nm->forwarding_enabled) { b1->error = - node->errors[SNAT_OUT2IN_ERROR_UNSUPPORTED_PROTOCOL]; - next1 = SNAT_OUT2IN_NEXT_DROP; + node->errors[NAT44_EI_OUT2IN_ERROR_UNSUPPORTED_PROTOCOL]; + next1 = NAT44_EI_OUT2IN_NEXT_DROP; } } - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.other, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.other, thread_index, sw_if_index1, 1); goto trace1; } if (PREDICT_FALSE (proto1 == NAT_PROTOCOL_ICMP)) { - next1 = icmp_out2in_slow_path - (sm, b1, ip1, icmp1, sw_if_index1, rx_fib_index1, node, - next1, now, thread_index, &s1); - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.icmp, + next1 = nat44_ei_icmp_out2in_slow_path ( + nm, b1, ip1, icmp1, sw_if_index1, rx_fib_index1, node, next1, now, + thread_index, &s1); + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.icmp, thread_index, sw_if_index1, 1); goto trace1; } @@ -1002,7 +987,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, init_nat_k (&kv1, ip1->dst_address, vnet_buffer (b1)->ip.reass.l4_dst_port, rx_fib_index1, proto1); - if (clib_bihash_search_8_8 (&sm->out2in, &kv1, &value1)) + if (clib_bihash_search_8_8 (&nm->out2in, &kv1, &value1)) { /* Try to match static mapping by external address and port, destination address and port in packet */ @@ -1024,10 +1009,11 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, goto trace1; } - if (!sm->forwarding_enabled) + if (!nm->forwarding_enabled) { - b1->error = node->errors[SNAT_OUT2IN_ERROR_NO_TRANSLATION]; - next1 = SNAT_OUT2IN_NEXT_DROP; + b1->error = + node->errors[NAT44_EI_OUT2IN_ERROR_NO_TRANSLATION]; + next1 = NAT44_EI_OUT2IN_NEXT_DROP; } goto trace1; } @@ -1036,22 +1022,18 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, goto trace1; /* Create session initiated by host from external network */ - s1 = - create_session_for_static_mapping (sm, b1, sm_addr1, sm_port1, - sm_fib_index1, - ip1->dst_address, - vnet_buffer (b1)->ip. - reass.l4_dst_port, - rx_fib_index1, proto1, node, - thread_index, now); + s1 = create_session_for_static_mapping ( + nm, b1, sm_addr1, sm_port1, sm_fib_index1, ip1->dst_address, + vnet_buffer (b1)->ip.reass.l4_dst_port, rx_fib_index1, proto1, + node, thread_index, now); if (!s1) { - next1 = SNAT_OUT2IN_NEXT_DROP; + next1 = NAT44_EI_OUT2IN_NEXT_DROP; goto trace1; } } else - s1 = pool_elt_at_index (sm->per_thread_data[thread_index].sessions, + s1 = pool_elt_at_index (nm->per_thread_data[thread_index].sessions, nat_value_get_session_index (&value1)); old_addr1 = ip1->dst_address.as_u32; @@ -1081,7 +1063,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, length /* changed member */ ); tcp1->checksum = ip_csum_fold (sum1); } - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.tcp, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.tcp, thread_index, sw_if_index1, 1); } else @@ -1105,7 +1087,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, udp1->checksum = ip_csum_fold (sum1); } } - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.udp, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.udp, thread_index, sw_if_index1, 1); } @@ -1113,24 +1095,24 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, nat44_ei_session_update_counters ( s1, now, vlib_buffer_length_in_chain (vm, b1), thread_index); /* Per-user LRU list maintenance */ - nat44_session_update_lru (sm, s1, thread_index); + nat44_ei_session_update_lru (nm, s1, thread_index); trace1: if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && (b1->flags & VLIB_BUFFER_IS_TRACED))) { - snat_out2in_trace_t *t = vlib_add_trace (vm, node, b1, sizeof (*t)); + nat44_ei_out2in_trace_t *t = + vlib_add_trace (vm, node, b1, sizeof (*t)); t->sw_if_index = sw_if_index1; t->next_index = next1; t->session_index = ~0; if (s1) - t->session_index = - s1 - sm->per_thread_data[thread_index].sessions; + t->session_index = s1 - nm->per_thread_data[thread_index].sessions; } - if (next1 == SNAT_OUT2IN_NEXT_DROP) + if (next1 == NAT44_EI_OUT2IN_NEXT_DROP) { - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.drops, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.drops, thread_index, sw_if_index1, 1); } @@ -1143,7 +1125,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, while (n_left_from > 0) { vlib_buffer_t *b0; - u32 next0 = SNAT_OUT2IN_NEXT_LOOKUP; + u32 next0 = NAT44_EI_OUT2IN_NEXT_LOOKUP; u32 sw_if_index0; ip4_header_t *ip0; ip_csum_t sum0; @@ -1154,7 +1136,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, icmp46_header_t *icmp0; u32 rx_fib_index0; u32 proto0; - snat_session_t *s0 = 0; + nat44_ei_session_t *s0 = 0; clib_bihash_kv_8_8_t kv0, value0; u8 identity_nat0; ip4_address_t sm_addr0; @@ -1172,23 +1154,23 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, icmp0 = (icmp46_header_t *) udp0; sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - rx_fib_index0 = vec_elt (sm->ip4_main->fib_index_by_sw_if_index, - sw_if_index0); + rx_fib_index0 = + vec_elt (nm->ip4_main->fib_index_by_sw_if_index, sw_if_index0); proto0 = ip_proto_to_nat_proto (ip0->protocol); if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_OTHER)) { - if (nat_out2in_sm_unknown_proto (sm, b0, ip0, rx_fib_index0)) + if (nat_out2in_sm_unknown_proto (nm, b0, ip0, rx_fib_index0)) { - if (!sm->forwarding_enabled) + if (!nm->forwarding_enabled) { b0->error = - node->errors[SNAT_OUT2IN_ERROR_UNSUPPORTED_PROTOCOL]; - next0 = SNAT_OUT2IN_NEXT_DROP; + node->errors[NAT44_EI_OUT2IN_ERROR_UNSUPPORTED_PROTOCOL]; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; } } - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.other, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.other, thread_index, sw_if_index0, 1); goto trace00; } @@ -1199,16 +1181,16 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, icmp4_error_set_vnet_buffer (b0, ICMP4_time_exceeded, ICMP4_time_exceeded_ttl_exceeded_in_transit, 0); - next0 = SNAT_OUT2IN_NEXT_ICMP_ERROR; + next0 = NAT44_EI_OUT2IN_NEXT_ICMP_ERROR; goto trace00; } if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP)) { - next0 = icmp_out2in_slow_path - (sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node, - next0, now, thread_index, &s0); - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.icmp, + next0 = nat44_ei_icmp_out2in_slow_path ( + nm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, node, next0, now, + thread_index, &s0); + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.icmp, thread_index, sw_if_index0, 1); goto trace00; } @@ -1217,7 +1199,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0, proto0); - if (clib_bihash_search_8_8 (&sm->out2in, &kv0, &value0)) + if (clib_bihash_search_8_8 (&nm->out2in, &kv0, &value0)) { /* Try to match static mapping by external address and port, destination address and port in packet */ @@ -1239,10 +1221,11 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, goto trace00; } - if (!sm->forwarding_enabled) + if (!nm->forwarding_enabled) { - b0->error = node->errors[SNAT_OUT2IN_ERROR_NO_TRANSLATION]; - next0 = SNAT_OUT2IN_NEXT_DROP; + b0->error = + node->errors[NAT44_EI_OUT2IN_ERROR_NO_TRANSLATION]; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; } goto trace00; } @@ -1251,22 +1234,18 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, goto trace00; /* Create session initiated by host from external network */ - s0 = create_session_for_static_mapping (sm, b0, - sm_addr0, sm_port0, - sm_fib_index0, - ip0->dst_address, - vnet_buffer (b0)->ip. - reass.l4_dst_port, - rx_fib_index0, proto0, node, - thread_index, now); + s0 = create_session_for_static_mapping ( + nm, b0, sm_addr0, sm_port0, sm_fib_index0, ip0->dst_address, + vnet_buffer (b0)->ip.reass.l4_dst_port, rx_fib_index0, proto0, + node, thread_index, now); if (!s0) { - next0 = SNAT_OUT2IN_NEXT_DROP; + next0 = NAT44_EI_OUT2IN_NEXT_DROP; goto trace00; } } else - s0 = pool_elt_at_index (sm->per_thread_data[thread_index].sessions, + s0 = pool_elt_at_index (nm->per_thread_data[thread_index].sessions, nat_value_get_session_index (&value0)); old_addr0 = ip0->dst_address.as_u32; @@ -1296,7 +1275,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, length /* changed member */ ); tcp0->checksum = ip_csum_fold (sum0); } - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.tcp, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.tcp, thread_index, sw_if_index0, 1); } else @@ -1317,7 +1296,7 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, udp0->checksum = ip_csum_fold (sum0); } } - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.udp, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.udp, thread_index, sw_if_index0, 1); } @@ -1325,24 +1304,24 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, nat44_ei_session_update_counters ( s0, now, vlib_buffer_length_in_chain (vm, b0), thread_index); /* Per-user LRU list maintenance */ - nat44_session_update_lru (sm, s0, thread_index); + nat44_ei_session_update_lru (nm, s0, thread_index); trace00: if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && (b0->flags & VLIB_BUFFER_IS_TRACED))) { - snat_out2in_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); + nat44_ei_out2in_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); t->sw_if_index = sw_if_index0; t->next_index = next0; t->session_index = ~0; if (s0) - t->session_index = - s0 - sm->per_thread_data[thread_index].sessions; + t->session_index = s0 - nm->per_thread_data[thread_index].sessions; } - if (next0 == SNAT_OUT2IN_NEXT_DROP) + if (next0 == NAT44_EI_OUT2IN_NEXT_DROP) { - vlib_increment_simple_counter (&sm->counters.slowpath.out2in.drops, + vlib_increment_simple_counter (&nm->counters.slowpath.out2in.drops, thread_index, sw_if_index0, 1); } @@ -1358,34 +1337,33 @@ VLIB_NODE_FN (snat_out2in_node) (vlib_main_t * vm, } /* *INDENT-OFF* */ -VLIB_REGISTER_NODE (snat_out2in_node) = { - .name = "nat44-out2in", +VLIB_REGISTER_NODE (nat44_ei_out2in_node) = { + .name = "nat44-ei-out2in", .vector_size = sizeof (u32), - .format_trace = format_snat_out2in_trace, + .format_trace = format_nat44_ei_out2in_trace, .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN(snat_out2in_error_strings), - .error_strings = snat_out2in_error_strings, + .n_errors = ARRAY_LEN(nat44_ei_out2in_error_strings), + .error_strings = nat44_ei_out2in_error_strings, - .runtime_data_bytes = sizeof (snat_runtime_t), + .runtime_data_bytes = sizeof (nat44_ei_runtime_t), - .n_next_nodes = SNAT_OUT2IN_N_NEXT, + .n_next_nodes = NAT44_EI_OUT2IN_N_NEXT, /* edit / add dispositions here */ .next_nodes = { - [SNAT_OUT2IN_NEXT_DROP] = "error-drop", - [SNAT_OUT2IN_NEXT_LOOKUP] = "ip4-lookup", - [SNAT_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error", + [NAT44_EI_OUT2IN_NEXT_DROP] = "error-drop", + [NAT44_EI_OUT2IN_NEXT_LOOKUP] = "ip4-lookup", + [NAT44_EI_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error", }, }; /* *INDENT-ON* */ -VLIB_NODE_FN (snat_out2in_fast_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +VLIB_NODE_FN (nat44_ei_out2in_fast_node) +(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) { u32 n_left_from, *from; - snat_main_t *sm = &snat_main; + nat44_ei_main_t *nm = &nat44_ei_main; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; @@ -1396,7 +1374,7 @@ VLIB_NODE_FN (snat_out2in_fast_node) (vlib_main_t * vm, while (n_left_from > 0) { vlib_buffer_t *b0; - u32 next0 = SNAT_OUT2IN_NEXT_DROP; + u32 next0 = NAT44_EI_OUT2IN_NEXT_DROP; u32 sw_if_index0; ip4_header_t *ip0; ip_csum_t sum0; @@ -1430,7 +1408,7 @@ VLIB_NODE_FN (snat_out2in_fast_node) (vlib_main_t * vm, icmp4_error_set_vnet_buffer (b0, ICMP4_time_exceeded, ICMP4_time_exceeded_ttl_exceeded_in_transit, 0); - next0 = SNAT_OUT2IN_NEXT_ICMP_ERROR; + next0 = NAT44_EI_OUT2IN_NEXT_ICMP_ERROR; goto trace00; } @@ -1441,8 +1419,8 @@ VLIB_NODE_FN (snat_out2in_fast_node) (vlib_main_t * vm, if (PREDICT_FALSE (proto0 == NAT_PROTOCOL_ICMP)) { - next0 = icmp_out2in (sm, b0, ip0, icmp0, sw_if_index0, rx_fib_index0, - node, next0, ~0, 0); + next0 = nat44_ei_icmp_out2in (b0, ip0, icmp0, sw_if_index0, + rx_fib_index0, node, next0, ~0, 0); goto trace00; } @@ -1450,7 +1428,7 @@ VLIB_NODE_FN (snat_out2in_fast_node) (vlib_main_t * vm, rx_fib_index0, proto0, &sm_addr0, &sm_port0, &sm_fib_index0, 1, 0, 0)) { - b0->error = node->errors[SNAT_OUT2IN_ERROR_NO_TRANSLATION]; + b0->error = node->errors[NAT44_EI_OUT2IN_ERROR_NO_TRANSLATION]; goto trace00; } @@ -1518,14 +1496,15 @@ VLIB_NODE_FN (snat_out2in_fast_node) (vlib_main_t * vm, if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && (b0->flags & VLIB_BUFFER_IS_TRACED))) { - snat_out2in_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); + nat44_ei_out2in_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); t->sw_if_index = sw_if_index0; t->next_index = next0; } - if (next0 == SNAT_OUT2IN_NEXT_DROP) + if (next0 == NAT44_EI_OUT2IN_NEXT_DROP) { - vlib_increment_simple_counter (&sm->counters.fastpath.out2in.drops, + vlib_increment_simple_counter (&nm->counters.fastpath.out2in.drops, vm->thread_index, sw_if_index0, 1); } @@ -1541,24 +1520,24 @@ VLIB_NODE_FN (snat_out2in_fast_node) (vlib_main_t * vm, } /* *INDENT-OFF* */ -VLIB_REGISTER_NODE (snat_out2in_fast_node) = { - .name = "nat44-out2in-fast", +VLIB_REGISTER_NODE (nat44_ei_out2in_fast_node) = { + .name = "nat44-ei-out2in-fast", .vector_size = sizeof (u32), - .format_trace = format_snat_out2in_fast_trace, + .format_trace = format_nat44_ei_out2in_fast_trace, .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN(snat_out2in_error_strings), - .error_strings = snat_out2in_error_strings, + .n_errors = ARRAY_LEN(nat44_ei_out2in_error_strings), + .error_strings = nat44_ei_out2in_error_strings, - .runtime_data_bytes = sizeof (snat_runtime_t), + .runtime_data_bytes = sizeof (nat44_ei_runtime_t), - .n_next_nodes = SNAT_OUT2IN_N_NEXT, + .n_next_nodes = NAT44_EI_OUT2IN_N_NEXT, /* edit / add dispositions here */ .next_nodes = { - [SNAT_OUT2IN_NEXT_LOOKUP] = "ip4-lookup", - [SNAT_OUT2IN_NEXT_DROP] = "error-drop", - [SNAT_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error", + [NAT44_EI_OUT2IN_NEXT_LOOKUP] = "ip4-lookup", + [NAT44_EI_OUT2IN_NEXT_DROP] = "error-drop", + [NAT44_EI_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error", }, }; /* *INDENT-ON* */ -- cgit 1.2.3-korg