diff options
Diffstat (limited to 'vnet')
| -rw-r--r-- | vnet/Makefile.am | 8 | ||||
| -rw-r--r-- | vnet/vnet/buffer.h | 3 | ||||
| -rw-r--r-- | vnet/vnet/interface_output.c | 7 | ||||
| -rw-r--r-- | vnet/vnet/span/node.c | 194 | ||||
| -rw-r--r-- | vnet/vnet/span/span.api | 60 | ||||
| -rw-r--r-- | vnet/vnet/span/span.c | 106 | ||||
| -rw-r--r-- | vnet/vnet/span/span.h | 15 | ||||
| -rw-r--r-- | vnet/vnet/span/span_api.c | 153 | ||||
| -rw-r--r-- | vnet/vnet/vnet_all_api_h.h | 1 |
9 files changed, 435 insertions, 112 deletions
diff --git a/vnet/Makefile.am b/vnet/Makefile.am index a8e48673d7f..a5f47fc80dc 100644 --- a/vnet/Makefile.am +++ b/vnet/Makefile.am @@ -21,7 +21,9 @@ BUILT_SOURCES = \ vnet/l2/l2.api.h \ vnet/l2/l2.api.json \ vnet/map/map.api.h \ - vnet/map/map.api.json + vnet/map/map.api.json \ + vnet/span/span.api.h \ + vnet/span/span.api.json libvnet_la_SOURCES = libvnetplugin_la_SOURCES = @@ -667,10 +669,12 @@ nobase_include_HEADERS += \ ######################################## libvnet_la_SOURCES += \ - vnet/span/span.c \ + vnet/span/span_api.c \ + vnet/span/span.c \ vnet/span/node.c nobase_include_HEADERS += \ + vnet/span/span.api.h \ vnet/span/span.h ######################################## diff --git a/vnet/vnet/buffer.h b/vnet/vnet/buffer.h index 6da699369f8..898c94ee7b9 100644 --- a/vnet/vnet/buffer.h +++ b/vnet/vnet/buffer.h @@ -70,6 +70,9 @@ #define LOG2_VNET_BUFFER_LOCALLY_ORIGINATED LOG2_VLIB_BUFFER_FLAG_USER(7) #define VNET_BUFFER_LOCALLY_ORIGINATED (1 << LOG2_VNET_BUFFER_LOCALLY_ORIGINATED) +#define LOG2_VNET_BUFFER_SPAN_CLONE LOG2_VLIB_BUFFER_FLAG_USER(8) +#define VNET_BUFFER_SPAN_CLONE (1 << LOG2_VNET_BUFFER_SPAN_CLONE) + #define foreach_buffer_opaque_union_subtype \ _(ethernet) \ _(ip) \ diff --git a/vnet/vnet/interface_output.c b/vnet/vnet/interface_output.c index 3302e791173..475b0b935af 100644 --- a/vnet/vnet/interface_output.c +++ b/vnet/vnet/interface_output.c @@ -1223,9 +1223,16 @@ VNET_FEATURE_ARC_INIT (interface_output, static) = { .arc_name = "interface-output", .start_nodes = VNET_FEATURES (0), + .end_node = "interface-tx", .arc_index_ptr = &vnet_main.interface_main.output_feature_arc_index, }; +VNET_FEATURE_INIT (span_tx, static) = { + .arc_name = "interface-output", + .node_name = "span-output", + .runs_before = VNET_FEATURES ("interface-tx"), +}; + VNET_FEATURE_INIT (interface_tx, static) = { .arc_name = "interface-output", .node_name = "interface-tx", diff --git a/vnet/vnet/span/node.c b/vnet/vnet/span/node.c index 32d44075958..50d642c2f8b 100644 --- a/vnet/vnet/span/node.c +++ b/vnet/vnet/span/node.c @@ -57,23 +57,61 @@ static char *span_error_strings[] = { #undef _ }; -static uword -span_node_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) +static_always_inline void +span_mirror (vlib_main_t * vm, span_interface_t * si0, vlib_buffer_t * b0, + vlib_frame_t ** mirror_frames, int is_rx) +{ + vlib_buffer_t *c0; + vnet_main_t *vnm = &vnet_main; + u32 *to_mirror_next = 0; + u32 i; + + if (is_rx != 0 && si0->num_rx_mirror_ports == 0) + return; + + if (is_rx == 0 && si0->num_tx_mirror_ports == 0) + return; + + /* Don't do it again */ + if (PREDICT_FALSE (b0->flags & VNET_BUFFER_SPAN_CLONE)) + return; + + /* *INDENT-OFF* */ + clib_bitmap_foreach (i, is_rx ? si0->rx_mirror_ports : si0->tx_mirror_ports, ( + { + if (mirror_frames[i] == 0) + mirror_frames[i] = vnet_get_frame_to_sw_interface (vnm, i); + to_mirror_next = vlib_frame_vector_args (mirror_frames[i]); + to_mirror_next += mirror_frames[i]->n_vectors; + c0 = vlib_buffer_copy (vm, b0); + vnet_buffer (c0)->sw_if_index[VLIB_TX] = i; + c0->flags |= VNET_BUFFER_SPAN_CLONE; + to_mirror_next[0] = vlib_get_buffer_index (vm, c0); + mirror_frames[i]->n_vectors++; + })); + /* *INDENT-ON* */ +} + +static_always_inline uword +span_node_inline_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame, int is_rx) { span_main_t *sm = &span_main; vnet_main_t *vnm = &vnet_main; - u32 n_left_from, *from, *to_next, *to_mirror_next = 0; + u32 n_left_from, *from, *to_next; u32 n_span_packets = 0; - u32 next_index, mirror_sw_if_index0, mirror_sw_if_index1; - u32 last_mirror_sw_if_index = ~0; - vlib_frame_t *mirror_frame = 0; + u32 next_index; + u32 sw_if_index; + static __thread vlib_frame_t **mirror_frames = 0; + vlib_rx_or_tx_t rxtx = is_rx ? VLIB_RX : VLIB_TX; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; - /* TODO dual loop */ + vec_validate_aligned (mirror_frames, sm->max_sw_if_index, + CLIB_CACHE_LINE_BYTES); + while (n_left_from > 0) { u32 n_left_to_next; @@ -84,8 +122,9 @@ span_node_fn (vlib_main_t * vm, { u32 bi0; u32 bi1; - vlib_buffer_t *b0, *c0; - vlib_buffer_t *b1, *c1; + vlib_buffer_t *b0; + vlib_buffer_t *b1; + span_interface_t *si0, *si1; u32 sw_if_index0; u32 next0 = 0; u32 sw_if_index1; @@ -100,68 +139,30 @@ span_node_fn (vlib_main_t * vm, n_left_from -= 2; b0 = vlib_get_buffer (vm, bi0); - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - mirror_sw_if_index0 = sm->dst_by_src_sw_if_index[sw_if_index0]; b1 = vlib_get_buffer (vm, bi1); - sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; - mirror_sw_if_index1 = sm->dst_by_src_sw_if_index[sw_if_index1]; + sw_if_index0 = vnet_buffer (b0)->sw_if_index[rxtx]; + sw_if_index1 = vnet_buffer (b1)->sw_if_index[rxtx]; + si0 = vec_elt_at_index (sm->interfaces, sw_if_index0); + si1 = vec_elt_at_index (sm->interfaces, sw_if_index1); - /* get frame to mirror interface */ - if (PREDICT_FALSE - ((last_mirror_sw_if_index != mirror_sw_if_index0) - || mirror_frame == 0)) - { - if (mirror_frame) - vnet_put_frame_to_sw_interface (vnm, last_mirror_sw_if_index, - mirror_frame); - last_mirror_sw_if_index = mirror_sw_if_index0; - mirror_frame = - vnet_get_frame_to_sw_interface (vnm, mirror_sw_if_index0); - to_mirror_next = vlib_frame_vector_args (mirror_frame); - } - /* get frame to mirror interface */ - if (PREDICT_FALSE - ((last_mirror_sw_if_index != mirror_sw_if_index1) - || mirror_frame == 0)) - { - if (mirror_frame) - vnet_put_frame_to_sw_interface (vnm, last_mirror_sw_if_index, - mirror_frame); - last_mirror_sw_if_index = mirror_sw_if_index1; - mirror_frame = - vnet_get_frame_to_sw_interface (vnm, mirror_sw_if_index0); - to_mirror_next = vlib_frame_vector_args (mirror_frame); - } - c0 = vlib_buffer_copy (vm, b0); - vnet_buffer (c0)->sw_if_index[VLIB_TX] = mirror_sw_if_index0; - to_mirror_next[0] = vlib_get_buffer_index (vm, c0); - to_mirror_next += 1; - mirror_frame->n_vectors++; + span_mirror (vm, si0, b0, mirror_frames, is_rx); + span_mirror (vm, si1, b1, mirror_frames, is_rx); vnet_feature_next (sw_if_index0, &next0, b0); - - c1 = vlib_buffer_copy (vm, b1); - vnet_buffer (c1)->sw_if_index[VLIB_TX] = mirror_sw_if_index1; - to_mirror_next[0] = vlib_get_buffer_index (vm, c1); - to_mirror_next += 1; - mirror_frame->n_vectors++; - vnet_feature_next (sw_if_index1, &next1, b1); if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { span_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); t->src_sw_if_index = sw_if_index0; - t->mirror_sw_if_index = - sm->dst_by_src_sw_if_index[sw_if_index0]; + //t->mirror_sw_if_index = si0->mirror_sw_if_index; } if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { span_trace_t *t = vlib_add_trace (vm, node, b1, sizeof (*t)); t->src_sw_if_index = sw_if_index1; - t->mirror_sw_if_index = - sm->dst_by_src_sw_if_index[sw_if_index1]; + //t->mirror_sw_if_index = si1->mirror_sw_if_index; } /* verify speculative enqueue, maybe switch current next frame */ vlib_validate_buffer_enqueue_x2 (vm, node, next_index, @@ -171,7 +172,8 @@ span_node_fn (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next > 0) { u32 bi0; - vlib_buffer_t *b0, *c0; + vlib_buffer_t *b0; + span_interface_t *si0; u32 sw_if_index0; u32 next0 = 0; @@ -183,27 +185,9 @@ span_node_fn (vlib_main_t * vm, n_left_from -= 1; b0 = vlib_get_buffer (vm, bi0); - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - mirror_sw_if_index0 = sm->dst_by_src_sw_if_index[sw_if_index0]; - - /* get frame to mirror interface */ - if (PREDICT_FALSE - ((last_mirror_sw_if_index != mirror_sw_if_index0) - || mirror_frame == 0)) - { - if (mirror_frame) - vnet_put_frame_to_sw_interface (vnm, last_mirror_sw_if_index, - mirror_frame); - last_mirror_sw_if_index = mirror_sw_if_index0; - mirror_frame = - vnet_get_frame_to_sw_interface (vnm, mirror_sw_if_index0); - to_mirror_next = vlib_frame_vector_args (mirror_frame); - } - c0 = vlib_buffer_copy (vm, b0); - vnet_buffer (c0)->sw_if_index[VLIB_TX] = mirror_sw_if_index0; - to_mirror_next[0] = vlib_get_buffer_index (vm, c0); - to_mirror_next += 1; - mirror_frame->n_vectors++; + sw_if_index0 = vnet_buffer (b0)->sw_if_index[rxtx]; + si0 = vec_elt_at_index (sm->interfaces, sw_if_index0); + span_mirror (vm, si0, b0, mirror_frames, is_rx); vnet_feature_next (sw_if_index0, &next0, b0); @@ -211,8 +195,6 @@ span_node_fn (vlib_main_t * vm, { span_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); t->src_sw_if_index = sw_if_index0; - t->mirror_sw_if_index = - sm->dst_by_src_sw_if_index[sw_if_index0]; } /* verify speculative enqueue, maybe switch current next frame */ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, @@ -222,16 +204,39 @@ span_node_fn (vlib_main_t * vm, vlib_put_next_frame (vm, node, next_index, n_left_to_next); } - vnet_put_frame_to_sw_interface (vnm, last_mirror_sw_if_index, mirror_frame); + + for (sw_if_index = 0; sw_if_index < vec_len (mirror_frames); sw_if_index++) + { + if (mirror_frames[sw_if_index] == 0) + continue; + + vnet_put_frame_to_sw_interface (vnm, sw_if_index, + mirror_frames[sw_if_index]); + mirror_frames[sw_if_index] = 0; + } vlib_node_increment_counter (vm, span_node.index, SPAN_ERROR_HITS, n_span_packets); return frame->n_vectors; } +static uword +span_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return span_node_inline_fn (vm, node, frame, 1); +} + +static uword +span_output_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return span_node_inline_fn (vm, node, frame, 0); +} + /* *INDENT-OFF* */ -VLIB_REGISTER_NODE (span_node) = { - .function = span_node_fn, +VLIB_REGISTER_NODE (span_input_node) = { + .function = span_input_node_fn, .name = "span-input", .vector_size = sizeof (u32), .format_trace = format_span_trace, @@ -248,9 +253,30 @@ VLIB_REGISTER_NODE (span_node) = { }, }; +VLIB_NODE_FUNCTION_MULTIARCH (span_input_node, span_input_node_fn) + +VLIB_REGISTER_NODE (span_output_node) = { + .function = span_output_node_fn, + .name = "span-output", + .vector_size = sizeof (u32), + .format_trace = format_span_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(span_error_strings), + .error_strings = span_error_strings, + + .n_next_nodes = 0, + + /* edit / add dispositions here */ + .next_nodes = { + [0] = "error-drop", + }, +}; + +VLIB_NODE_FUNCTION_MULTIARCH (span_output_node, span_output_node_fn) + /* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (span_node, span_node_fn) /* * fd.io coding-style-patch-verification: ON * diff --git a/vnet/vnet/span/span.api b/vnet/vnet/span/span.api new file mode 100644 index 00000000000..2f3b4118186 --- /dev/null +++ b/vnet/vnet/span/span.api @@ -0,0 +1,60 @@ +/* Hey Emacs use -*- mode: C -*- */ +/* + * Copyright (c) 2016 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. + */ + + /** \brief Enable/Disable span to mirror traffic from one interface to another + @param client_index - opaque cookie to identify the sender + @param context - sender context which was passed in the request + @param sw_if_index_from - interface to be mirorred + @param sw_if_index_to - interface where the traffic is mirrored + @param state - 0 = disabled, 1 = rx enabled, 2 = tx enabled, 3 tx & rx enabled +*/ +define sw_interface_span_enable_disable{ + u32 client_index; + u32 context; + u32 sw_if_index_from; + u32 sw_if_index_to; + u8 state; +}; + +/** \brief Reply to SPAN enable/disable request + @param context - sender context which was passed in the request +*/ +define sw_interface_span_enable_disable_reply { + u32 context; + i32 retval; +}; + +/** \brief SPAN dump request + @param client_index - opaque cookie to identify the sender + @param context - sender context, to match reply w/ request +*/ +define sw_interface_span_dump { + u32 client_index; + u32 context; +}; + +/** \brief Reply to SPAN dump request + @param context - sender context which was passed in the request + @param sw_if_index_from - mirorred interface + @param sw_if_index_to - interface where the traffic is mirrored + @param state - 0 = disabled, 1 = rx enabled, 2 = tx enabled, 3 tx & rx enabled +*/ +define sw_interface_span_details { + u32 context; + u32 sw_if_index_from; + u32 sw_if_index_to; + u8 state; +};
\ No newline at end of file diff --git a/vnet/vnet/span/span.c b/vnet/vnet/span/span.c index 52300454427..7b5816c79f2 100644 --- a/vnet/vnet/span/span.c +++ b/vnet/vnet/span/span.c @@ -21,22 +21,59 @@ int span_add_delete_entry (vlib_main_t * vm, - u32 src_sw_if_index, u32 dst_sw_if_index, u8 is_add) + u32 src_sw_if_index, u32 dst_sw_if_index, u8 state) { span_main_t *sm = &span_main; + span_interface_t *si; + u32 new_num_rx_mirror_ports, new_num_tx_mirror_ports; - if ((src_sw_if_index == ~0) || (dst_sw_if_index == ~0 && is_add) + if (state > 3) + return VNET_API_ERROR_UNIMPLEMENTED; + + if ((src_sw_if_index == ~0) || (dst_sw_if_index == ~0 && state > 0) || (src_sw_if_index == dst_sw_if_index)) return VNET_API_ERROR_INVALID_INTERFACE; - vnet_sw_interface_t *sw = - vnet_get_sw_interface (sm->vnet_main, src_sw_if_index); + vnet_sw_interface_t *sw_if; + + sw_if = vnet_get_sw_interface (vnet_get_main (), src_sw_if_index); + if (sw_if->type == VNET_SW_INTERFACE_TYPE_SUB) + return VNET_API_ERROR_UNIMPLEMENTED; - vec_validate_aligned (sm->dst_by_src_sw_if_index, sw->sw_if_index, + vec_validate_aligned (sm->interfaces, src_sw_if_index, CLIB_CACHE_LINE_BYTES); - sm->dst_by_src_sw_if_index[sw->sw_if_index] = is_add ? dst_sw_if_index : 0; - vnet_feature_enable_disable ("device-input", "span-input", - sw->sw_if_index, is_add, 0, 0); + si = vec_elt_at_index (sm->interfaces, src_sw_if_index); + + si->rx_mirror_ports = clib_bitmap_set (si->rx_mirror_ports, dst_sw_if_index, + (state & 1) != 0); + si->tx_mirror_ports = clib_bitmap_set (si->tx_mirror_ports, dst_sw_if_index, + (state & 2) != 0); + + new_num_rx_mirror_ports = clib_bitmap_count_set_bits (si->rx_mirror_ports); + new_num_tx_mirror_ports = clib_bitmap_count_set_bits (si->tx_mirror_ports); + + if (new_num_rx_mirror_ports == 1 && si->num_rx_mirror_ports == 0) + vnet_feature_enable_disable ("device-input", "span-input", + src_sw_if_index, 1, 0, 0); + + if (new_num_rx_mirror_ports == 0 && si->num_rx_mirror_ports == 1) + vnet_feature_enable_disable ("device-input", "span-input", + src_sw_if_index, 0, 0, 0); + + if (new_num_rx_mirror_ports == 1 && si->num_rx_mirror_ports == 0) + vnet_feature_enable_disable ("device-input", "span-output", + src_sw_if_index, 1, 0, 0); + + if (new_num_rx_mirror_ports == 0 && si->num_rx_mirror_ports == 1) + vnet_feature_enable_disable ("device-input", "span-output", + src_sw_if_index, 0, 0, 0); + + si->num_rx_mirror_ports = new_num_rx_mirror_ports; + si->num_tx_mirror_ports = new_num_tx_mirror_ports; + + if (dst_sw_if_index > sm->max_sw_if_index) + sm->max_sw_if_index = dst_sw_if_index; + return 0; } @@ -48,7 +85,7 @@ set_interface_span_command_fn (vlib_main_t * vm, span_main_t *sm = &span_main; u32 src_sw_if_index = ~0; u32 dst_sw_if_index = ~0; - u8 is_add = 1; + u8 state = 3; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { @@ -59,13 +96,19 @@ set_interface_span_command_fn (vlib_main_t * vm, sm->vnet_main, &dst_sw_if_index)) ; else if (unformat (input, "disable")) - is_add = 0; + state = 0; + else if (unformat (input, "rx")) + state = 1; + else if (unformat (input, "tx")) + state = 2; + else if (unformat (input, "both")) + state = 3; else break; } int rv = - span_add_delete_entry (vm, src_sw_if_index, dst_sw_if_index, is_add); + span_add_delete_entry (vm, src_sw_if_index, dst_sw_if_index, state); if (rv == VNET_API_ERROR_INVALID_INTERFACE) return clib_error_return (0, "Invalid interface"); return 0; @@ -74,7 +117,7 @@ set_interface_span_command_fn (vlib_main_t * vm, /* *INDENT-OFF* */ VLIB_CLI_COMMAND (set_interface_span_command, static) = { .path = "set interface span", - .short_help = "set interface span <if-name> [disable | destination <if-name>]", + .short_help = "set interface span <if-name> [disable | destination <if-name> [both|rx|tx]]", .function = set_interface_span_command_fn, }; /* *INDENT-ON* */ @@ -84,28 +127,43 @@ show_interfaces_span_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { - span_main_t *sm = &span_main; + span_interface_t *si; vnet_main_t *vnm = &vnet_main; - u32 src_sw_if_index = 0, *dst_sw_if_index; u8 header = 1; + char *states[] = { "none", "rx", "tx", "both" }; + u8 *s = 0; - vec_foreach (dst_sw_if_index, sm->dst_by_src_sw_if_index) - { - if (*dst_sw_if_index > 0) // && *dst_sw_if_index != ~0) + /* *INDENT-OFF* */ + vec_foreach (si, sm->interfaces) + if (si->num_rx_mirror_ports || si->num_tx_mirror_ports) { + clib_bitmap_t *b; + u32 i; + b = clib_bitmap_dup_or (si->rx_mirror_ports, si->tx_mirror_ports); if (header) { - vlib_cli_output (vm, - "SPAN source interface to destination interface table"); + vlib_cli_output (vm, "%-40s %s", "Source interface", + "Mirror interface (direction)"); header = 0; } - vlib_cli_output (vm, "%32U => %-32U", - format_vnet_sw_if_index_name, vnm, src_sw_if_index, - format_vnet_sw_if_index_name, vnm, *dst_sw_if_index); + s = format (s, "%U", format_vnet_sw_if_index_name, vnm, + si - sm->interfaces); + clib_bitmap_foreach (i, b, ( + { + int state; + state = (clib_bitmap_get (si->rx_mirror_ports, i) + + clib_bitmap_get (si->tx_mirror_ports, i) * 2); + + vlib_cli_output (vm, "%-40v %U (%s)", s, + format_vnet_sw_if_index_name, vnm, i, + states[state]); + vec_reset_length (s); + })); + clib_bitmap_free (b); } - src_sw_if_index++; - } + /* *INDENT-ON* */ + vec_free (s); return 0; } diff --git a/vnet/vnet/span/span.h b/vnet/vnet/span/span.h index 751bebf6680..a98b010bf61 100644 --- a/vnet/vnet/span/span.h +++ b/vnet/vnet/span/span.h @@ -21,8 +21,19 @@ typedef struct { - /* destination interface index by source interface index */ - u32 *dst_by_src_sw_if_index; + clib_bitmap_t *rx_mirror_ports; + clib_bitmap_t *tx_mirror_ports; + u32 num_rx_mirror_ports; + u32 num_tx_mirror_ports; +} span_interface_t; + +typedef struct +{ + /* per-interface vector of span instances */ + span_interface_t *interfaces; + + /* biggest sw_if_index used so far */ + u32 max_sw_if_index; /* convenience */ vlib_main_t *vlib_main; diff --git a/vnet/vnet/span/span_api.c b/vnet/vnet/span/span_api.c new file mode 100644 index 00000000000..eacd6ec8531 --- /dev/null +++ b/vnet/vnet/span/span_api.c @@ -0,0 +1,153 @@ +/* + *------------------------------------------------------------------ + * span_api.c - span mirroring api + * + * Copyright (c) 2016 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. + *------------------------------------------------------------------ + */ + +#include <vnet/vnet.h> +#include <vlibmemory/api.h> + +#include <vnet/interface.h> +#include <vnet/api_errno.h> +#include <vnet/span/span.h> + +#include <vnet/vnet_msg_enum.h> + +#define vl_typedefs /* define message structures */ +#include <vnet/vnet_all_api_h.h> +#undef vl_typedefs + +#define vl_endianfun /* define message structures */ +#include <vnet/vnet_all_api_h.h> +#undef vl_endianfun + +/* instantiate all the print functions we know about */ +#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__) +#define vl_printfun +#include <vnet/vnet_all_api_h.h> +#undef vl_printfun + +#include <vlibapi/api_helper_macros.h> + +#define foreach_vpe_api_msg \ +_(SW_INTERFACE_SPAN_ENABLE_DISABLE, sw_interface_span_enable_disable) \ +_(SW_INTERFACE_SPAN_DUMP, sw_interface_span_dump) \ + +static void + vl_api_sw_interface_span_enable_disable_t_handler + (vl_api_sw_interface_span_enable_disable_t * mp) +{ + vl_api_sw_interface_span_enable_disable_reply_t *rmp; + int rv; + + vlib_main_t *vm = vlib_get_main (); + + rv = span_add_delete_entry (vm, ntohl (mp->sw_if_index_from), + ntohl (mp->sw_if_index_to), mp->state); + + REPLY_MACRO (VL_API_SW_INTERFACE_SPAN_ENABLE_DISABLE_REPLY); +} + +static void +vl_api_sw_interface_span_dump_t_handler (vl_api_sw_interface_span_dump_t * mp) +{ + + unix_shared_memory_queue_t *q; + span_interface_t *si; + vl_api_sw_interface_span_details_t *rmp; + span_main_t *sm = &span_main; + + q = vl_api_client_index_to_input_queue (mp->client_index); + if (!q) + return; + + /* *INDENT-OFF* */ + vec_foreach (si, sm->interfaces) + if (si->num_rx_mirror_ports || si->num_tx_mirror_ports) + { + clib_bitmap_t *b; + u32 i; + b = clib_bitmap_dup_or (si->rx_mirror_ports, si->tx_mirror_ports); + clib_bitmap_foreach (i, b, ( + { + rmp = vl_msg_api_alloc (sizeof (*rmp)); + memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_SPAN_DETAILS); + rmp->context = mp->context; + + rmp->sw_if_index_from = htonl (si - sm->interfaces); + rmp->sw_if_index_to = htonl (i); + rmp->state = (u8) (clib_bitmap_get (si->rx_mirror_ports, i) + + clib_bitmap_get (si->tx_mirror_ports, i) * 2); + + vl_msg_api_send_shmem (q, (u8 *) & rmp); + })); + clib_bitmap_free (b); + } + /* *INDENT-ON* */ +} + +/* + * vpe_api_hookup + * Add vpe's API message handlers to the table. + * vlib has alread mapped shared memory and + * added the client registration handlers. + * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process() + */ +#define vl_msg_name_crc_list +#include <vnet/vnet_all_api_h.h> +#undef vl_msg_name_crc_list + +static void +setup_message_id_table (api_main_t * am) +{ +#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id); + foreach_vl_msg_name_crc_l2; +#undef _ +} + +static clib_error_t * +span_api_hookup (vlib_main_t * vm) +{ + api_main_t *am = &api_main; + +#define _(N,n) \ + vl_msg_api_set_handlers(VL_API_##N, #n, \ + vl_api_##n##_t_handler, \ + vl_noop_handler, \ + vl_api_##n##_t_endian, \ + vl_api_##n##_t_print, \ + sizeof(vl_api_##n##_t), 1); + foreach_vpe_api_msg; +#undef _ + + /* + * Set up the (msg_name, crc, message-id) table + */ + setup_message_id_table (am); + + return 0; +} + +VLIB_API_INIT_FUNCTION (span_api_hookup); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/vnet_all_api_h.h b/vnet/vnet/vnet_all_api_h.h index 887b1b0b88f..c8ead569862 100644 --- a/vnet/vnet/vnet_all_api_h.h +++ b/vnet/vnet/vnet_all_api_h.h @@ -32,6 +32,7 @@ #include <vnet/interface.api.h> #include <vnet/map/map.api.h> #include <vnet/l2/l2.api.h> +#include <vnet/span/span.api.h> /* * fd.io coding-style-patch-verification: ON |