2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vlib/vlib.h>
17 #include <vppinfra/error.h>
18 #include <vnet/feature/feature.h>
20 #include <vnet/span/span.h>
23 span_add_delete_entry (vlib_main_t * vm,
24 u32 src_sw_if_index, u32 dst_sw_if_index, u8 state)
26 span_main_t *sm = &span_main;
28 u32 new_num_rx_mirror_ports, new_num_tx_mirror_ports;
31 return VNET_API_ERROR_UNIMPLEMENTED;
33 if ((src_sw_if_index == ~0) || (dst_sw_if_index == ~0 && state > 0)
34 || (src_sw_if_index == dst_sw_if_index))
35 return VNET_API_ERROR_INVALID_INTERFACE;
37 vnet_sw_interface_t *sw_if;
39 sw_if = vnet_get_sw_interface (vnet_get_main (), src_sw_if_index);
40 if (sw_if->type == VNET_SW_INTERFACE_TYPE_SUB)
41 return VNET_API_ERROR_UNIMPLEMENTED;
43 vec_validate_aligned (sm->interfaces, src_sw_if_index,
44 CLIB_CACHE_LINE_BYTES);
45 si = vec_elt_at_index (sm->interfaces, src_sw_if_index);
47 si->rx_mirror_ports = clib_bitmap_set (si->rx_mirror_ports, dst_sw_if_index,
49 si->tx_mirror_ports = clib_bitmap_set (si->tx_mirror_ports, dst_sw_if_index,
52 new_num_rx_mirror_ports = clib_bitmap_count_set_bits (si->rx_mirror_ports);
53 new_num_tx_mirror_ports = clib_bitmap_count_set_bits (si->tx_mirror_ports);
55 if (new_num_rx_mirror_ports == 1 && si->num_rx_mirror_ports == 0)
56 vnet_feature_enable_disable ("device-input", "span-input",
57 src_sw_if_index, 1, 0, 0);
59 if (new_num_rx_mirror_ports == 0 && si->num_rx_mirror_ports == 1)
60 vnet_feature_enable_disable ("device-input", "span-input",
61 src_sw_if_index, 0, 0, 0);
63 if (new_num_rx_mirror_ports == 1 && si->num_rx_mirror_ports == 0)
64 vnet_feature_enable_disable ("interface-output", "span-output",
65 src_sw_if_index, 1, 0, 0);
67 if (new_num_rx_mirror_ports == 0 && si->num_rx_mirror_ports == 1)
68 vnet_feature_enable_disable ("interface-output", "span-output",
69 src_sw_if_index, 0, 0, 0);
71 si->num_rx_mirror_ports = new_num_rx_mirror_ports;
72 si->num_tx_mirror_ports = new_num_tx_mirror_ports;
74 if (dst_sw_if_index > sm->max_sw_if_index)
75 sm->max_sw_if_index = dst_sw_if_index;
81 set_interface_span_command_fn (vlib_main_t * vm,
82 unformat_input_t * input,
83 vlib_cli_command_t * cmd)
85 span_main_t *sm = &span_main;
86 u32 src_sw_if_index = ~0;
87 u32 dst_sw_if_index = ~0;
90 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
92 if (unformat (input, "%U", unformat_vnet_sw_interface,
93 sm->vnet_main, &src_sw_if_index))
95 else if (unformat (input, "destination %U", unformat_vnet_sw_interface,
96 sm->vnet_main, &dst_sw_if_index))
98 else if (unformat (input, "disable"))
100 else if (unformat (input, "rx"))
102 else if (unformat (input, "tx"))
104 else if (unformat (input, "both"))
111 span_add_delete_entry (vm, src_sw_if_index, dst_sw_if_index, state);
112 if (rv == VNET_API_ERROR_INVALID_INTERFACE)
113 return clib_error_return (0, "Invalid interface");
118 VLIB_CLI_COMMAND (set_interface_span_command, static) = {
119 .path = "set interface span",
120 .short_help = "set interface span <if-name> [disable | destination <if-name> [both|rx|tx]]",
121 .function = set_interface_span_command_fn,
125 static clib_error_t *
126 show_interfaces_span_command_fn (vlib_main_t * vm,
127 unformat_input_t * input,
128 vlib_cli_command_t * cmd)
130 span_main_t *sm = &span_main;
131 span_interface_t *si;
132 vnet_main_t *vnm = &vnet_main;
134 char *states[] = { "none", "rx", "tx", "both" };
138 vec_foreach (si, sm->interfaces)
139 if (si->num_rx_mirror_ports || si->num_tx_mirror_ports)
143 b = clib_bitmap_dup_or (si->rx_mirror_ports, si->tx_mirror_ports);
146 vlib_cli_output (vm, "%-40s %s", "Source interface",
147 "Mirror interface (direction)");
150 s = format (s, "%U", format_vnet_sw_if_index_name, vnm,
151 si - sm->interfaces);
152 clib_bitmap_foreach (i, b, (
155 state = (clib_bitmap_get (si->rx_mirror_ports, i) +
156 clib_bitmap_get (si->tx_mirror_ports, i) * 2);
158 vlib_cli_output (vm, "%-40v %U (%s)", s,
159 format_vnet_sw_if_index_name, vnm, i,
161 vec_reset_length (s);
163 clib_bitmap_free (b);
171 VLIB_CLI_COMMAND (show_interfaces_span_command, static) = {
172 .path = "show interfaces span",
173 .short_help = "Shows SPAN mirror table",
174 .function = show_interfaces_span_command_fn,
178 static clib_error_t *
179 span_init (vlib_main_t * vm)
181 span_main_t *sm = &span_main;
184 sm->vnet_main = vnet_get_main ();
189 VLIB_INIT_FUNCTION (span_init);
192 * fd.io coding-style-patch-verification: ON
195 * eval: (c-set-style "gnu")