diff options
Diffstat (limited to 'src/plugins/snat')
| -rw-r--r-- | src/plugins/snat/in2out.c | 217 | ||||
| -rw-r--r-- | src/plugins/snat/snat.api | 36 | ||||
| -rw-r--r-- | src/plugins/snat/snat.c | 183 | ||||
| -rw-r--r-- | src/plugins/snat/snat.h | 7 | ||||
| -rw-r--r-- | src/plugins/snat/snat_api.c | 90 |
5 files changed, 495 insertions, 38 deletions
diff --git a/src/plugins/snat/in2out.c b/src/plugins/snat/in2out.c index 9b09902abe1..9ee2ebd47c6 100644 --- a/src/plugins/snat/in2out.c +++ b/src/plugins/snat/in2out.c @@ -88,6 +88,9 @@ vlib_node_registration_t snat_in2out_slowpath_node; vlib_node_registration_t snat_in2out_fast_node; vlib_node_registration_t snat_in2out_worker_handoff_node; vlib_node_registration_t snat_det_in2out_node; +vlib_node_registration_t snat_in2out_output_node; +vlib_node_registration_t snat_in2out_output_slowpath_node; +vlib_node_registration_t snat_in2out_output_worker_handoff_node; #define foreach_snat_in2out_error \ _(UNSUPPORTED_PROTOCOL, "Unsupported protocol") \ @@ -515,8 +518,13 @@ u32 icmp_match_in2out_slow(snat_main_t *sm, vlib_node_runtime_t *node, clib_bihash_kv_8_8_t kv0, value0; u32 next0 = ~0; int err; + u32 iph_offset0 = 0; - ip0 = vlib_buffer_get_current (b0); + if (PREDICT_FALSE(vnet_buffer(b0)->sw_if_index[VLIB_TX] != ~0)) + { + iph_offset0 = vnet_buffer (b0)->ip.save_rewrite_length; + } + ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) + iph_offset0); icmp0 = (icmp46_header_t *) ip4_next_header (ip0); sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX]; rx_fib_index0 = ip4_fib_table_get_index_for_sw_if_index (sw_if_index0); @@ -535,7 +543,8 @@ u32 icmp_match_in2out_slow(snat_main_t *sm, vlib_node_runtime_t *node, if (clib_bihash_search_8_8 (&sm->in2out, &kv0, &value0)) { if (PREDICT_FALSE(snat_not_translate(sm, node, sw_if_index0, ip0, - IP_PROTOCOL_ICMP, rx_fib_index0))) + IP_PROTOCOL_ICMP, rx_fib_index0) && + vnet_buffer(b0)->sw_if_index[VLIB_TX] == ~0)) { dont_translate = 1; goto out; @@ -704,7 +713,8 @@ static inline u32 icmp_in2out (snat_main_t *sm, old_addr0 = ip0->src_address.as_u32; new_addr0 = ip0->src_address.as_u32 = sm0.addr.as_u32; - vnet_buffer(b0)->sw_if_index[VLIB_TX] = sm0.fib_index; + if (vnet_buffer(b0)->sw_if_index[VLIB_TX] == ~0) + vnet_buffer(b0)->sw_if_index[VLIB_TX] = sm0.fib_index; sum0 = ip0->checksum; sum0 = ip_csum_update (sum0, old_addr0, new_addr0, ip4_header_t, @@ -1276,7 +1286,8 @@ create_ses: kv.key = m_key.as_u64; if (clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv, &value)) { - vnet_buffer(b)->sw_if_index[VLIB_TX] = sm->outside_fib_index; + if (vnet_buffer(b)->sw_if_index[VLIB_TX] == ~0) + vnet_buffer(b)->sw_if_index[VLIB_TX] = sm->outside_fib_index; return; } @@ -1298,7 +1309,8 @@ create_ses: static inline uword snat_in2out_node_fn_inline (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, int is_slow_path) + vlib_frame_t * frame, int is_slow_path, + int is_output_feature) { u32 n_left_from, * from, * to_next; snat_in2out_next_t next_index; @@ -1340,6 +1352,7 @@ snat_in2out_node_fn_inline (vlib_main_t * vm, u32 proto0, proto1; snat_session_t * s0 = 0, * s1 = 0; clib_bihash_kv_8_8_t kv0, value0, kv1, value1; + u32 iph_offset0 = 0, iph_offset1 = 0; /* Prefetch next iteration. */ { @@ -1366,7 +1379,12 @@ snat_in2out_node_fn_inline (vlib_main_t * vm, b0 = vlib_get_buffer (vm, bi0); b1 = vlib_get_buffer (vm, bi1); - ip0 = vlib_buffer_get_current (b0); + if (is_output_feature) + iph_offset0 = vnet_buffer (b0)->ip.save_rewrite_length; + + ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) + + iph_offset0); + udp0 = ip4_next_header (ip0); tcp0 = (tcp_header_t *) udp0; icmp0 = (icmp46_header_t *) udp0; @@ -1427,8 +1445,8 @@ snat_in2out_node_fn_inline (vlib_main_t * vm, { if (is_slow_path) { - if (PREDICT_FALSE(snat_not_translate(sm, node, sw_if_index0, ip0, - proto0, rx_fib_index0))) + if (PREDICT_FALSE(snat_not_translate(sm, node, sw_if_index0, + ip0, proto0, rx_fib_index0)) && !is_output_feature) goto trace00; next0 = slow_path (sm, b0, ip0, rx_fib_index0, &key0, @@ -1449,7 +1467,8 @@ snat_in2out_node_fn_inline (vlib_main_t * vm, old_addr0 = ip0->src_address.as_u32; ip0->src_address = s0->out2in.addr; new_addr0 = ip0->src_address.as_u32; - vnet_buffer(b0)->sw_if_index[VLIB_TX] = s0->out2in.fib_index; + if (!is_output_feature) + vnet_buffer(b0)->sw_if_index[VLIB_TX] = s0->out2in.fib_index; sum0 = ip0->checksum; sum0 = ip_csum_update (sum0, old_addr0, new_addr0, @@ -1512,7 +1531,12 @@ snat_in2out_node_fn_inline (vlib_main_t * vm, pkts_processed += next0 != SNAT_IN2OUT_NEXT_DROP; - ip1 = vlib_buffer_get_current (b1); + if (is_output_feature) + iph_offset1 = vnet_buffer (b1)->ip.save_rewrite_length; + + ip1 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b1) + + iph_offset1); + udp1 = ip4_next_header (ip1); tcp1 = (tcp_header_t *) udp1; icmp1 = (icmp46_header_t *) udp1; @@ -1571,8 +1595,8 @@ snat_in2out_node_fn_inline (vlib_main_t * vm, { if (is_slow_path) { - if (PREDICT_FALSE(snat_not_translate(sm, node, sw_if_index1, ip1, - proto1, rx_fib_index1))) + if (PREDICT_FALSE(snat_not_translate(sm, node, sw_if_index1, + ip1, proto1, rx_fib_index1)) && !is_output_feature) goto trace01; next1 = slow_path (sm, b1, ip1, rx_fib_index1, &key1, @@ -1593,7 +1617,8 @@ snat_in2out_node_fn_inline (vlib_main_t * vm, old_addr1 = ip1->src_address.as_u32; ip1->src_address = s1->out2in.addr; new_addr1 = ip1->src_address.as_u32; - vnet_buffer(b1)->sw_if_index[VLIB_TX] = s1->out2in.fib_index; + if (!is_output_feature) + vnet_buffer(b1)->sw_if_index[VLIB_TX] = s1->out2in.fib_index; sum1 = ip1->checksum; sum1 = ip_csum_update (sum1, old_addr1, new_addr1, @@ -1679,7 +1704,8 @@ snat_in2out_node_fn_inline (vlib_main_t * vm, u32 proto0; snat_session_t * s0 = 0; clib_bihash_kv_8_8_t kv0, value0; - + u32 iph_offset0 = 0; + /* speculatively enqueue b0 to the current next frame */ bi0 = from[0]; to_next[0] = bi0; @@ -1691,7 +1717,12 @@ snat_in2out_node_fn_inline (vlib_main_t * vm, b0 = vlib_get_buffer (vm, bi0); next0 = SNAT_IN2OUT_NEXT_LOOKUP; - ip0 = vlib_buffer_get_current (b0); + if (is_output_feature) + iph_offset0 = vnet_buffer (b0)->ip.save_rewrite_length; + + ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) + + iph_offset0); + udp0 = ip4_next_header (ip0); tcp0 = (tcp_header_t *) udp0; icmp0 = (icmp46_header_t *) udp0; @@ -1750,8 +1781,8 @@ snat_in2out_node_fn_inline (vlib_main_t * vm, { if (is_slow_path) { - if (PREDICT_FALSE(snat_not_translate(sm, node, sw_if_index0, ip0, - proto0, rx_fib_index0))) + if (PREDICT_FALSE(snat_not_translate(sm, node, sw_if_index0, + ip0, proto0, rx_fib_index0)) && !is_output_feature) goto trace0; next0 = slow_path (sm, b0, ip0, rx_fib_index0, &key0, @@ -1773,7 +1804,8 @@ snat_in2out_node_fn_inline (vlib_main_t * vm, old_addr0 = ip0->src_address.as_u32; ip0->src_address = s0->out2in.addr; new_addr0 = ip0->src_address.as_u32; - vnet_buffer(b0)->sw_if_index[VLIB_TX] = s0->out2in.fib_index; + if (!is_output_feature) + vnet_buffer(b0)->sw_if_index[VLIB_TX] = s0->out2in.fib_index; sum0 = ip0->checksum; sum0 = ip_csum_update (sum0, old_addr0, new_addr0, @@ -1856,7 +1888,7 @@ snat_in2out_fast_path_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return snat_in2out_node_fn_inline (vm, node, frame, 0 /* is_slow_path */); + return snat_in2out_node_fn_inline (vm, node, frame, 0 /* is_slow_path */, 0); } VLIB_REGISTER_NODE (snat_in2out_node) = { @@ -1865,12 +1897,12 @@ VLIB_REGISTER_NODE (snat_in2out_node) = { .vector_size = sizeof (u32), .format_trace = format_snat_in2out_trace, .type = VLIB_NODE_TYPE_INTERNAL, - + .n_errors = ARRAY_LEN(snat_in2out_error_strings), .error_strings = snat_in2out_error_strings, .runtime_data_bytes = sizeof (snat_runtime_t), - + .n_next_nodes = SNAT_IN2OUT_N_NEXT, /* edit / add dispositions here */ @@ -1885,11 +1917,45 @@ VLIB_REGISTER_NODE (snat_in2out_node) = { VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_node, snat_in2out_fast_path_fn); static uword +snat_in2out_output_fast_path_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return snat_in2out_node_fn_inline (vm, node, frame, 0 /* is_slow_path */, 1); +} + +VLIB_REGISTER_NODE (snat_in2out_output_node) = { + .function = snat_in2out_output_fast_path_fn, + .name = "snat-in2out-output", + .vector_size = sizeof (u32), + .format_trace = format_snat_in2out_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(snat_in2out_error_strings), + .error_strings = snat_in2out_error_strings, + + .runtime_data_bytes = sizeof (snat_runtime_t), + + .n_next_nodes = SNAT_IN2OUT_N_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + [SNAT_IN2OUT_NEXT_DROP] = "error-drop", + [SNAT_IN2OUT_NEXT_LOOKUP] = "interface-output", + [SNAT_IN2OUT_NEXT_SLOW_PATH] = "snat-in2out-output-slowpath", + [SNAT_IN2OUT_NEXT_ICMP_ERROR] = "ip4-icmp-error", + }, +}; + +VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_output_node, + snat_in2out_output_fast_path_fn); + +static uword snat_in2out_slow_path_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return snat_in2out_node_fn_inline (vm, node, frame, 1 /* is_slow_path */); + return snat_in2out_node_fn_inline (vm, node, frame, 1 /* is_slow_path */, 0); } VLIB_REGISTER_NODE (snat_in2out_slowpath_node) = { @@ -1898,12 +1964,12 @@ VLIB_REGISTER_NODE (snat_in2out_slowpath_node) = { .vector_size = sizeof (u32), .format_trace = format_snat_in2out_trace, .type = VLIB_NODE_TYPE_INTERNAL, - + .n_errors = ARRAY_LEN(snat_in2out_error_strings), .error_strings = snat_in2out_error_strings, .runtime_data_bytes = sizeof (snat_runtime_t), - + .n_next_nodes = SNAT_IN2OUT_N_NEXT, /* edit / add dispositions here */ @@ -1915,7 +1981,42 @@ VLIB_REGISTER_NODE (snat_in2out_slowpath_node) = { }, }; -VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_slowpath_node, snat_in2out_slow_path_fn); +VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_slowpath_node, + snat_in2out_slow_path_fn); + +static uword +snat_in2out_output_slow_path_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return snat_in2out_node_fn_inline (vm, node, frame, 1 /* is_slow_path */, 1); +} + +VLIB_REGISTER_NODE (snat_in2out_output_slowpath_node) = { + .function = snat_in2out_output_slow_path_fn, + .name = "snat-in2out-output-slowpath", + .vector_size = sizeof (u32), + .format_trace = format_snat_in2out_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(snat_in2out_error_strings), + .error_strings = snat_in2out_error_strings, + + .runtime_data_bytes = sizeof (snat_runtime_t), + + .n_next_nodes = SNAT_IN2OUT_N_NEXT, + + /* edit / add dispositions here */ + .next_nodes = { + [SNAT_IN2OUT_NEXT_DROP] = "error-drop", + [SNAT_IN2OUT_NEXT_LOOKUP] = "interface-output", + [SNAT_IN2OUT_NEXT_SLOW_PATH] = "snat-in2out-output-slowpath", + [SNAT_IN2OUT_NEXT_ICMP_ERROR] = "ip4-icmp-error", + }, +}; + +VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_output_slowpath_node, + snat_in2out_output_slow_path_fn); /**************************/ /*** deterministic mode ***/ @@ -2677,10 +2778,11 @@ out: /**********************/ /*** worker handoff ***/ /**********************/ -static uword -snat_in2out_worker_handoff_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +static inline uword +snat_in2out_worker_handoff_fn_inline (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame, + u8 is_output) { snat_main_t *sm = &snat_main; vlib_thread_main_t *tm = vlib_get_thread_main (); @@ -2695,9 +2797,22 @@ snat_in2out_worker_handoff_fn (vlib_main_t * vm, u32 next_worker_index = 0; u32 current_worker_index = ~0; u32 thread_index = vlib_get_thread_index (); + u32 fq_index; + u32 to_node_index; ASSERT (vec_len (sm->workers)); + if (is_output) + { + fq_index = sm->fq_in2out_output_index; + to_node_index = sm->in2out_output_node_index; + } + else + { + fq_index = sm->fq_in2out_index; + to_node_index = sm->in2out_node_index; + } + if (PREDICT_FALSE (handoff_queue_elt_by_worker_index == 0)) { vec_validate (handoff_queue_elt_by_worker_index, tm->n_vlib_mains - 1); @@ -2741,7 +2856,7 @@ snat_in2out_worker_handoff_fn (vlib_main_t * vm, if (hf) hf->n_vectors = VLIB_FRAME_SIZE - n_left_to_next_worker; - hf = vlib_get_worker_handoff_queue_elt (sm->fq_in2out_index, + hf = vlib_get_worker_handoff_queue_elt (fq_index, next_worker_index, handoff_queue_elt_by_worker_index); @@ -2770,7 +2885,7 @@ snat_in2out_worker_handoff_fn (vlib_main_t * vm, /* if this is 1st frame */ if (!f) { - f = vlib_get_frame_to_node (vm, sm->in2out_node_index); + f = vlib_get_frame_to_node (vm, to_node_index); to_next = vlib_frame_vector_args (f); } @@ -2790,7 +2905,7 @@ snat_in2out_worker_handoff_fn (vlib_main_t * vm, } if (f) - vlib_put_frame_to_node (vm, sm->in2out_node_index, f); + vlib_put_frame_to_node (vm, to_node_index, f); if (hf) hf->n_vectors = VLIB_FRAME_SIZE - n_left_to_next_worker; @@ -2821,13 +2936,46 @@ snat_in2out_worker_handoff_fn (vlib_main_t * vm, return frame->n_vectors; } +static uword +snat_in2out_worker_handoff_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return snat_in2out_worker_handoff_fn_inline (vm, node, frame, 0); +} + VLIB_REGISTER_NODE (snat_in2out_worker_handoff_node) = { .function = snat_in2out_worker_handoff_fn, .name = "snat-in2out-worker-handoff", .vector_size = sizeof (u32), .format_trace = format_snat_in2out_worker_handoff_trace, .type = VLIB_NODE_TYPE_INTERNAL, - + + .n_next_nodes = 1, + + .next_nodes = { + [0] = "error-drop", + }, +}; + +VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_worker_handoff_node, + snat_in2out_worker_handoff_fn); + +static uword +snat_in2out_output_worker_handoff_fn (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return snat_in2out_worker_handoff_fn_inline (vm, node, frame, 1); +} + +VLIB_REGISTER_NODE (snat_in2out_output_worker_handoff_node) = { + .function = snat_in2out_output_worker_handoff_fn, + .name = "snat-in2out-output-worker-handoff", + .vector_size = sizeof (u32), + .format_trace = format_snat_in2out_worker_handoff_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .n_next_nodes = 1, .next_nodes = { @@ -2835,7 +2983,8 @@ VLIB_REGISTER_NODE (snat_in2out_worker_handoff_node) = { }, }; -VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_worker_handoff_node, snat_in2out_worker_handoff_fn); +VLIB_NODE_FUNCTION_MULTIARCH (snat_in2out_output_worker_handoff_node, + snat_in2out_output_worker_handoff_fn); static uword snat_in2out_fast_static_map_fn (vlib_main_t * vm, diff --git a/src/plugins/snat/snat.api b/src/plugins/snat/snat.api index 62c9605847a..f68a5aaa146 100644 --- a/src/plugins/snat/snat.api +++ b/src/plugins/snat/snat.api @@ -96,6 +96,42 @@ define snat_interface_details { u32 sw_if_index; }; +/** \brief Enable/disbale S-NAT as an interface output feature (postrouting + in2out translation) + @param client_index - opaque cookie to identify the sender + @param context - sender context, to match reply w/ request + @param is_add - 1 if add, 0 if delete + @param is_inside - 1 if inside, 0 if outside + @param sw_if_index - software index of the interface +*/ +autoreply define snat_interface_add_del_output_feature { + u32 client_index; + u32 context; + u8 is_add; + u8 is_inside; + u32 sw_if_index; +}; + +/** \brief Dump interfaces with S-NAT output feature + @param client_index - opaque cookie to identify the sender + @param context - sender context, to match reply w/ request +*/ +define snat_interface_output_feature_dump { + u32 client_index; + u32 context; +}; + +/** \brief S-NAT interface with output feature details response + @param context - sender context, to match reply w/ request + @param is_inside - 1 if inside, 0 if outside + @param sw_if_index - software index of the interface +*/ +define snat_interface_output_feature_details { + u32 context; + u8 is_inside; + u32 sw_if_index; +}; + /** \brief Add/delete S-NAT static mapping @param client_index - opaque cookie to identify the sender @param context - sender context, to match reply w/ request diff --git a/src/plugins/snat/snat.c b/src/plugins/snat/snat.c index 97eb061c16b..bce7d210767 100644 --- a/src/plugins/snat/snat.c +++ b/src/plugins/snat/snat.c @@ -73,6 +73,20 @@ VNET_FEATURE_INIT (ip4_snat_out2in_fast, static) = { .runs_before = VNET_FEATURES ("ip4-lookup"), }; +/* Hook up output features */ +VNET_FEATURE_INIT (ip4_snat_in2out_output, static) = { + .arc_name = "ip4-output", + .node_name = "snat-in2out-output", + .runs_before = VNET_FEATURES ("interface-output"), +}; + +VNET_FEATURE_INIT (ip4_snat_in2out_output_worker_handoff, static) = { + .arc_name = "ip4-output", + .node_name = "snat-in2out-output-worker-handoff", + .runs_before = VNET_FEATURES ("interface-output"), +}; + + /* *INDENT-OFF* */ VLIB_PLUGIN_REGISTER () = { .version = VPP_BUILD_VER, @@ -157,6 +171,14 @@ void snat_add_address (snat_main_t *sm, ip4_address_t *addr, u32 vrf_id) snat_add_del_addr_to_fib(addr, 32, i->sw_if_index, 1); break; })); + pool_foreach (i, sm->output_feature_interfaces, + ({ + if (i->is_inside) + continue; + + snat_add_del_addr_to_fib(addr, 32, i->sw_if_index, 1); + break; + })); } static int is_snat_address_used_in_static_mapping (snat_main_t *sm, @@ -542,6 +564,14 @@ delete: snat_add_del_addr_to_fib(&e_addr, 32, interface->sw_if_index, is_add); break; })); + pool_foreach (interface, sm->output_feature_interfaces, + ({ + if (interface->is_inside) + continue; + + snat_add_del_addr_to_fib(&e_addr, 32, interface->sw_if_index, is_add); + break; + })); return 0; } @@ -668,6 +698,14 @@ int snat_del_address (snat_main_t *sm, ip4_address_t addr, u8 delete_sm) snat_add_del_addr_to_fib(&addr, 32, interface->sw_if_index, 0); break; })); + pool_foreach (interface, sm->output_feature_interfaces, + ({ + if (interface->is_inside) + continue; + + snat_add_del_addr_to_fib(&addr, 32, interface->sw_if_index, 0); + break; + })); return 0; } @@ -746,6 +784,85 @@ fib: return 0; } +int snat_interface_add_del_output_feature (u32 sw_if_index, + u8 is_inside, + int is_del) +{ + snat_main_t *sm = &snat_main; + snat_interface_t *i; + snat_address_t * ap; + snat_static_mapping_t * m; + + if (sm->deterministic || + (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))) + return VNET_API_ERROR_UNSUPPORTED; + + if (is_inside) + goto find; + + if (sm->num_workers > 1) + { + vnet_feature_enable_disable ("ip4-unicast", "snat-out2in-worker-handoff", + sw_if_index, !is_del, 0, 0); + vnet_feature_enable_disable ("ip4-output", + "snat-in2out-output-worker-handoff", + sw_if_index, !is_del, 0, 0); + } + else + { + vnet_feature_enable_disable ("ip4-unicast", "snat-out2in", sw_if_index, + !is_del, 0, 0); + vnet_feature_enable_disable ("ip4-output", "snat-in2out-output", + sw_if_index, !is_del, 0, 0); + } + + if (sm->fq_in2out_output_index == ~0 && sm->num_workers > 1) + sm->fq_in2out_output_index = + vlib_frame_queue_main_init (sm->in2out_output_node_index, 0); + + if (sm->fq_out2in_index == ~0 && sm->num_workers > 1) + sm->fq_out2in_index = vlib_frame_queue_main_init (sm->out2in_node_index, 0); + +find: + pool_foreach (i, sm->output_feature_interfaces, + ({ + if (i->sw_if_index == sw_if_index) + { + if (is_del) + pool_put (sm->output_feature_interfaces, i); + else + return VNET_API_ERROR_VALUE_EXIST; + + goto fib; + } + })); + + if (is_del) + return VNET_API_ERROR_NO_SUCH_ENTRY; + + pool_get (sm->output_feature_interfaces, i); + i->sw_if_index = sw_if_index; + i->is_inside = is_inside; + + /* Add/delete external addresses to FIB */ +fib: + if (is_inside) + return 0; + + vec_foreach (ap, sm->addresses) + snat_add_del_addr_to_fib(&ap->addr, 32, sw_if_index, !is_del); + + pool_foreach (m, sm->static_mappings, + ({ + if (!(m->addr_only)) + continue; + + snat_add_del_addr_to_fib(&m->external_addr, 32, sw_if_index, !is_del); + })); + + return 0; +} + int snat_set_workers (uword * bitmap) { snat_main_t *sm = &snat_main; @@ -1103,6 +1220,7 @@ snat_feature_command_fn (vlib_main_t * vm, u32 sw_if_index; u32 * inside_sw_if_indices = 0; u32 * outside_sw_if_indices = 0; + u8 is_output_feature = 0; int is_del = 0; int i; @@ -1120,6 +1238,8 @@ snat_feature_command_fn (vlib_main_t * vm, else if (unformat (line_input, "out %U", unformat_vnet_sw_interface, vnm, &sw_if_index)) vec_add1 (outside_sw_if_indices, sw_if_index); + else if (unformat (line_input, "output-feature")) + is_output_feature = 1; else if (unformat (line_input, "del")) is_del = 1; else @@ -1135,7 +1255,30 @@ snat_feature_command_fn (vlib_main_t * vm, for (i = 0; i < vec_len(inside_sw_if_indices); i++) { sw_if_index = inside_sw_if_indices[i]; - snat_interface_add_del (sw_if_index, 1, is_del); + if (is_output_feature) + { + if (snat_interface_add_del_output_feature (sw_if_index, 1, is_del)) + { + error = clib_error_return (0, "%s %U failed", + is_del ? "del" : "add", + format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, + sw_if_index)); + goto done; + } + } + else + { + if (snat_interface_add_del (sw_if_index, 1, is_del)) + { + error = clib_error_return (0, "%s %U failed", + is_del ? "del" : "add", + format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, + sw_if_index)); + goto done; + } + } } } @@ -1144,7 +1287,30 @@ snat_feature_command_fn (vlib_main_t * vm, for (i = 0; i < vec_len(outside_sw_if_indices); i++) { sw_if_index = outside_sw_if_indices[i]; - snat_interface_add_del (sw_if_index, 0, is_del); + if (is_output_feature) + { + if (snat_interface_add_del_output_feature (sw_if_index, 0, is_del)) + { + error = clib_error_return (0, "%s %U failed", + is_del ? "del" : "add", + format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, + sw_if_index)); + goto done; + } + } + else + { + if (snat_interface_add_del (sw_if_index, 0, is_del)) + { + error = clib_error_return (0, "%s %U failed", + is_del ? "del" : "add", + format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, + sw_if_index)); + goto done; + } + } } } @@ -1159,7 +1325,8 @@ done: VLIB_CLI_COMMAND (set_interface_snat_command, static) = { .path = "set interface snat", .function = snat_feature_command_fn, - .short_help = "set interface snat in <intfc> out <intfc> [del]", + .short_help = "set interface snat in <intfc> out <intfc> [output-feature] " + "[del]", }; uword @@ -1597,6 +1764,7 @@ snat_config (vlib_main_t * vm, unformat_input_t * input) if (sm->deterministic) { sm->in2out_node_index = snat_det_in2out_node.index; + sm->in2out_output_node_index = ~0; sm->out2in_node_index = snat_det_out2in_node.index; sm->icmp_match_in2out_cb = icmp_match_in2out_det; sm->icmp_match_out2in_cb = icmp_match_out2in_det; @@ -1606,6 +1774,7 @@ snat_config (vlib_main_t * vm, unformat_input_t * input) sm->worker_in2out_cb = snat_get_worker_in2out_cb; sm->worker_out2in_cb = snat_get_worker_out2in_cb; sm->in2out_node_index = snat_in2out_node.index; + sm->in2out_output_node_index = snat_in2out_output_node.index; sm->out2in_node_index = snat_out2in_node.index; if (!static_mapping_only || (static_mapping_only && static_mapping_connection_tracking)) @@ -1881,6 +2050,14 @@ show_snat_command_fn (vlib_main_t * vm, i->is_inside ? "in" : "out"); })); + pool_foreach (i, sm->output_feature_interfaces, + ({ + vlib_cli_output (vm, "%U output-feature %s", + format_vnet_sw_interface_name, vnm, + vnet_get_sw_interface (vnm, i->sw_if_index), + i->is_inside ? "in" : "out"); + })); + if (vec_len (sm->auto_add_sw_if_indices)) { vlib_cli_output (vm, "SNAT pool addresses interfaces:"); diff --git a/src/plugins/snat/snat.h b/src/plugins/snat/snat.h index 1bc5fcd7545..2546815b5f4 100644 --- a/src/plugins/snat/snat.h +++ b/src/plugins/snat/snat.h @@ -297,6 +297,7 @@ typedef struct snat_main_s { /* Interface pool */ snat_interface_t * interfaces; + snat_interface_t * output_feature_interfaces; /* Vector of outside addresses */ snat_address_t * addresses; @@ -312,10 +313,12 @@ typedef struct snat_main_s { /* Worker handoff index */ u32 fq_in2out_index; + u32 fq_in2out_output_index; u32 fq_out2in_index; /* in2out and out2in node index */ u32 in2out_node_index; + u32 in2out_output_node_index; u32 out2in_node_index; /* Deterministic NAT */ @@ -357,10 +360,12 @@ typedef struct snat_main_s { extern snat_main_t snat_main; extern vlib_node_registration_t snat_in2out_node; +extern vlib_node_registration_t snat_in2out_output_node; extern vlib_node_registration_t snat_out2in_node; extern vlib_node_registration_t snat_in2out_fast_node; extern vlib_node_registration_t snat_out2in_fast_node; extern vlib_node_registration_t snat_in2out_worker_handoff_node; +extern vlib_node_registration_t snat_in2out_output_worker_handoff_node; extern vlib_node_registration_t snat_out2in_worker_handoff_node; extern vlib_node_registration_t snat_det_in2out_node; extern vlib_node_registration_t snat_det_out2in_node; @@ -477,6 +482,8 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr, clib_error_t * snat_api_init(vlib_main_t * vm, snat_main_t * sm); int snat_set_workers (uword * bitmap); int snat_interface_add_del(u32 sw_if_index, u8 is_inside, int is_del); +int snat_interface_add_del_output_feature(u32 sw_if_index, u8 is_inside, + int is_del); int snat_add_interface_address(snat_main_t *sm, u32 sw_if_index, int is_del); uword unformat_snat_protocol(unformat_input_t * input, va_list * args); u8 * format_snat_protocol(u8 * s, va_list * args); diff --git a/src/plugins/snat/snat_api.c b/src/plugins/snat/snat_api.c index 237b080dd67..ee623d266d7 100644 --- a/src/plugins/snat/snat_api.c +++ b/src/plugins/snat/snat_api.c @@ -253,7 +253,91 @@ static void *vl_api_snat_interface_dump_t_print s = format (0, "SCRIPT: snat_interface_dump "); FINISH; -} static void +} + +static void + vl_api_snat_interface_add_del_output_feature_t_handler + (vl_api_snat_interface_add_del_output_feature_t * mp) +{ + snat_main_t *sm = &snat_main; + vl_api_snat_interface_add_del_output_feature_reply_t *rmp; + u8 is_del = mp->is_add == 0; + u32 sw_if_index = ntohl (mp->sw_if_index); + int rv = 0; + + VALIDATE_SW_IF_INDEX (mp); + + rv = snat_interface_add_del_output_feature (sw_if_index, mp->is_inside, + is_del); + + BAD_SW_IF_INDEX_LABEL; + + REPLY_MACRO (VL_API_SNAT_INTERFACE_ADD_DEL_OUTPUT_FEATURE_REPLY); +} + +static void *vl_api_snat_interface_add_del_output_feature_t_print + (vl_api_snat_interface_add_del_output_feature_t * mp, void *handle) +{ + u8 *s; + + s = format (0, "SCRIPT: snat_interface_add_del_output_feature "); + s = format (s, "sw_if_index %d %s %s", + clib_host_to_net_u32 (mp->sw_if_index), + mp->is_inside ? "in" : "out", mp->is_add ? "" : "del"); + + FINISH; +} + +static void +send_snat_interface_output_feature_details (snat_interface_t * i, + unix_shared_memory_queue_t * q, + u32 context) +{ + vl_api_snat_interface_output_feature_details_t *rmp; + snat_main_t *sm = &snat_main; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = + ntohs (VL_API_SNAT_INTERFACE_OUTPUT_FEATURE_DETAILS + sm->msg_id_base); + rmp->sw_if_index = ntohl (i->sw_if_index); + rmp->context = context; + rmp->is_inside = i->is_inside; + + vl_msg_api_send_shmem (q, (u8 *) & rmp); +} + +static void + vl_api_snat_interface_output_feature_dump_t_handler + (vl_api_snat_interface_output_feature_dump_t * mp) +{ + unix_shared_memory_queue_t *q; + snat_main_t *sm = &snat_main; + snat_interface_t *i; + + q = vl_api_client_index_to_input_queue (mp->client_index); + if (q == 0) + return; + + /* *INDENT-OFF* */ + pool_foreach (i, sm->output_feature_interfaces, + ({ + send_snat_interface_output_feature_details(i, q, mp->context); + })); + /* *INDENT-ON* */ +} + +static void *vl_api_snat_interface_output_feature_dump_t_print + (vl_api_snat_interface_output_feature_dump_t * mp, void *handle) +{ + u8 *s; + + s = format (0, "SCRIPT: snat_interface_output_feature_dump "); + + FINISH; +} + +static void vl_api_snat_add_static_mapping_t_handler (vl_api_snat_add_static_mapping_t * mp) { @@ -1792,6 +1876,10 @@ _(SNAT_INTERFACE_ADDR_DUMP, snat_interface_addr_dump) \ _(SNAT_IPFIX_ENABLE_DISABLE, snat_ipfix_enable_disable) \ _(SNAT_USER_DUMP, snat_user_dump) \ _(SNAT_USER_SESSION_DUMP, snat_user_session_dump) \ +_(SNAT_INTERFACE_ADD_DEL_OUTPUT_FEATURE, \ + snat_interface_add_del_output_feature) \ +_(SNAT_INTERFACE_OUTPUT_FEATURE_DUMP, \ + snat_interface_output_feature_dump) \ _(SNAT_ADD_DET_MAP, snat_add_det_map) \ _(SNAT_DET_FORWARD, snat_det_forward) \ _(SNAT_DET_REVERSE, snat_det_reverse) \ |