--- /dev/null
+/*
+ * l2_vtr.c : layer 2 vlan tag rewrite configuration
+ *
+ * Copyright (c) 2013 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 <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/ethernet/packet.h>
+#include <vnet/l2/l2_input.h>
+#include <vnet/l2/l2_output.h>
+#include <vnet/l2/feat_bitmap.h>
+#include <vnet/l2/l2_vtr.h>
+#include <vnet/l2/l2_input_vtr.h>
+#include <vnet/l2/l2_output.h>
+
+#include <vppinfra/error.h>
+#include <vlib/cli.h>
+
+/**
+ * @file
+ * @brief Ethernet VLAN Tag Rewrite.
+ *
+ * VLAN tag rewrite provides the ability to change the VLAN tags on a packet.
+ * Existing tags can be popped, new tags can be pushed, and existing tags can
+ * be swapped with new tags. The rewrite feature is attached to a subinterface
+ * as input and output operations. The input operation is explicitly configured.
+ * The output operation is the symmetric opposite and is automatically derived
+ * from the input operation.
+ */
+
+/** Just a placeholder; ensures file is not eliminated by linker. */
+clib_error_t *
+l2_vtr_init (vlib_main_t * vm)
+{
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (l2_vtr_init);
+
+u32
+l2pbb_configure (vlib_main_t * vlib_main,
+ vnet_main_t * vnet_main, u32 sw_if_index, u32 vtr_op,
+ u8 * b_dmac, u8 * b_smac,
+ u16 b_vlanid, u32 i_sid, u16 vlan_outer_tag)
+{
+ u32 error = 0;
+ u32 enable = 0;
+
+ l2_output_config_t *config = 0;
+ vnet_hw_interface_t *hi;
+ hi = vnet_get_sup_hw_interface (vnet_main, sw_if_index);
+
+ if (!hi)
+ {
+ error = VNET_API_ERROR_INVALID_INTERFACE;
+ goto done;
+ }
+
+ // Config for this interface should be already initialized
+ ptr_config_t *in_config;
+ ptr_config_t *out_config;
+ config = vec_elt_at_index (l2output_main.configs, sw_if_index);
+ in_config = &(config->input_pbb_vtr);
+ out_config = &(config->output_pbb_vtr);
+
+ in_config->pop_bytes = 0;
+ in_config->push_bytes = 0;
+ out_config->pop_bytes = 0;
+ out_config->push_bytes = 0;
+ enable = (vtr_op != L2_VTR_DISABLED);
+
+ if (!enable)
+ goto done;
+
+ if (vtr_op == L2_VTR_POP_2)
+ {
+ in_config->pop_bytes = sizeof (ethernet_pbb_header_packed_t);
+ }
+ else if (vtr_op == L2_VTR_PUSH_2)
+ {
+ clib_memcpy (in_config->macs_tags.b_dst_address, b_dmac,
+ sizeof (in_config->macs_tags.b_dst_address));
+ clib_memcpy (in_config->macs_tags.b_src_address, b_smac,
+ sizeof (in_config->macs_tags.b_src_address));
+ in_config->macs_tags.b_type =
+ clib_net_to_host_u16 (ETHERNET_TYPE_DOT1AD);
+ in_config->macs_tags.priority_dei_id =
+ clib_net_to_host_u16 (b_vlanid & 0xFFF);
+ in_config->macs_tags.i_type =
+ clib_net_to_host_u16 (ETHERNET_TYPE_DOT1AH);
+ in_config->macs_tags.priority_dei_uca_res_sid =
+ clib_net_to_host_u32 (i_sid & 0xFFFFF);
+ in_config->push_bytes = sizeof (ethernet_pbb_header_packed_t);
+ }
+ else if (vtr_op == L2_VTR_TRANSLATE_2_2)
+ {
+ /* TODO after PoC */
+ }
+
+ /*
+ * Construct the output tag-rewrite config
+ *
+ * The push/pop values are always reversed
+ */
+ out_config->raw_data = in_config->raw_data;
+ out_config->pop_bytes = in_config->push_bytes;
+ out_config->push_bytes = in_config->pop_bytes;
+
+done:
+ l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_VTR, enable);
+ if (config)
+ config->out_vtr_flag = (u8) enable;
+
+ /* output vtr enable is checked explicitly in l2_output */
+ return error;
+}
+
+/**
+ * Configure vtag tag rewrite on the given interface.
+ * Return 1 if there is an error, 0 if ok
+ */
+u32
+l2vtr_configure (vlib_main_t * vlib_main, vnet_main_t * vnet_main, u32 sw_if_index, u32 vtr_op, u32 push_dot1q, /* ethertype of first pushed tag is dot1q/dot1ad */
+ u32 vtr_tag1, /* first pushed tag */
+ u32 vtr_tag2) /* second pushed tag */
+{
+ vnet_hw_interface_t *hi;
+ vnet_sw_interface_t *si;
+ u32 hw_no_tags;
+ u32 error = 0;
+ l2_output_config_t *config;
+ vtr_config_t *in_config;
+ vtr_config_t *out_config;
+ u32 enable;
+ u32 push_inner_et;
+ u32 push_outer_et;
+ u32 cfg_tags;
+
+ hi = vnet_get_sup_hw_interface (vnet_main, sw_if_index);
+ if (!hi || (hi->hw_class_index != ethernet_hw_interface_class.index))
+ {
+ error = VNET_API_ERROR_INVALID_INTERFACE; /* non-ethernet interface */
+ goto done;
+ }
+
+ /* Init the config for this interface */
+ vec_validate (l2output_main.configs, sw_if_index);
+ config = vec_elt_at_index (l2output_main.configs, sw_if_index);
+ in_config = &(config->input_vtr);
+ out_config = &(config->output_vtr);
+ in_config->raw_tags = 0;
+ out_config->raw_tags = 0;
+
+ /* Get the configured tags for the interface */
+ si = vnet_get_sw_interface (vnet_main, sw_if_index);
+ hw_no_tags = (si->type == VNET_SW_INTERFACE_TYPE_HARDWARE);
+
+ /* Construct the input tag-rewrite config */
+
+ push_outer_et =
+ clib_net_to_host_u16 (push_dot1q ? ETHERNET_TYPE_VLAN :
+ ETHERNET_TYPE_DOT1AD);
+ push_inner_et = clib_net_to_host_u16 (ETHERNET_TYPE_VLAN);
+ vtr_tag1 = clib_net_to_host_u16 (vtr_tag1);
+ vtr_tag2 = clib_net_to_host_u16 (vtr_tag2);
+
+ /* Determine number of vlan tags with explictly configured values */
+ cfg_tags = 0;
+ if (hw_no_tags || si->sub.eth.flags.no_tags)
+ {
+ cfg_tags = 0;
+ }
+ else if (si->sub.eth.flags.one_tag)
+ {
+ cfg_tags = 1;
+ if (si->sub.eth.flags.outer_vlan_id_any)
+ {
+ cfg_tags = 0;
+ }
+ }
+ else if (si->sub.eth.flags.two_tags)
+ {
+ cfg_tags = 2;
+ if (si->sub.eth.flags.inner_vlan_id_any)
+ {
+ cfg_tags = 1;
+ }
+ if (si->sub.eth.flags.outer_vlan_id_any)
+ {
+ cfg_tags = 0;
+ }
+ }
+
+ switch (vtr_op)
+ {
+ case L2_VTR_DISABLED:
+ in_config->push_and_pop_bytes = 0;
+ break;
+
+ case L2_VTR_POP_1:
+ if (cfg_tags < 1)
+ {
+ /* Need one or two tags */
+ error = VNET_API_ERROR_INVALID_VLAN_TAG_COUNT;
+ goto done;
+ }
+ in_config->pop_bytes = 4;
+ in_config->push_bytes = 0;
+ break;
+
+ case L2_VTR_POP_2:
+ if (cfg_tags < 2)
+ {
+ error = VNET_API_ERROR_INVALID_VLAN_TAG_COUNT; /* Need two tags */
+ goto done;
+ }
+ in_config->pop_bytes = 8;
+ in_config->push_bytes = 0;
+
+ out_config->push_bytes = in_config->pop_bytes;
+ out_config->pop_bytes = in_config->push_bytes;
+ break;
+
+ case L2_VTR_PUSH_1:
+ in_config->pop_bytes = 0;
+ in_config->push_bytes = 4;
+ in_config->tags[1].priority_cfi_and_id = vtr_tag1;
+ in_config->tags[1].type = push_outer_et;
+ break;
+
+ case L2_VTR_PUSH_2:
+ in_config->pop_bytes = 0;
+ in_config->push_bytes = 8;
+ in_config->tags[0].priority_cfi_and_id = vtr_tag1;
+ in_config->tags[0].type = push_outer_et;
+ in_config->tags[1].priority_cfi_and_id = vtr_tag2;
+ in_config->tags[1].type = push_inner_et;
+ break;
+
+ case L2_VTR_TRANSLATE_1_1:
+ if (cfg_tags < 1)
+ {
+ error = VNET_API_ERROR_INVALID_VLAN_TAG_COUNT; /* Need one or two tags */
+ goto done;
+ }
+ in_config->pop_bytes = 4;
+ in_config->push_bytes = 4;
+ in_config->tags[1].priority_cfi_and_id = vtr_tag1;
+ in_config->tags[1].type = push_outer_et;
+ break;
+
+ case L2_VTR_TRANSLATE_1_2:
+ if (cfg_tags < 1)
+ {
+ error = VNET_API_ERROR_INVALID_VLAN_TAG_COUNT; /* Need one or two tags */
+ goto done;
+ }
+ in_config->pop_bytes = 4;
+ in_config->push_bytes = 8;
+ in_config->tags[0].priority_cfi_and_id = vtr_tag1;
+ in_config->tags[0].type = push_outer_et;
+ in_config->tags[1].priority_cfi_and_id = vtr_tag2;
+ in_config->tags[1].type = push_inner_et;
+ break;
+
+ case L2_VTR_TRANSLATE_2_1:
+ if (cfg_tags < 2)
+ {
+ error = VNET_API_ERROR_INVALID_VLAN_TAG_COUNT; /* Need two tags */
+ goto done;
+ }
+ in_config->pop_bytes = 8;
+ in_config->push_bytes = 4;
+ in_config->tags[1].priority_cfi_and_id = vtr_tag1;
+ in_config->tags[1].type = push_outer_et;
+ break;
+
+ case L2_VTR_TRANSLATE_2_2:
+ if (cfg_tags < 2)
+ {
+ error = VNET_API_ERROR_INVALID_VLAN_TAG_COUNT; /* Need two tags */
+ goto done;
+ }
+ in_config->pop_bytes = 8;
+ in_config->push_bytes = 8;
+ in_config->tags[0].priority_cfi_and_id = vtr_tag1;
+ in_config->tags[0].type = push_outer_et;
+ in_config->tags[1].priority_cfi_and_id = vtr_tag2;
+ in_config->tags[1].type = push_inner_et;
+ break;
+ }
+
+ /*
+ * Construct the output tag-rewrite config
+ *
+ * The push/pop values are always reversed
+ */
+ out_config->push_bytes = in_config->pop_bytes;
+ out_config->pop_bytes = in_config->push_bytes;
+
+ /* Any pushed tags are derived from the subinterface config */
+ push_outer_et =
+ clib_net_to_host_u16 (si->sub.eth.flags.dot1ad ? ETHERNET_TYPE_DOT1AD :
+ ETHERNET_TYPE_VLAN);
+ push_inner_et = clib_net_to_host_u16 (ETHERNET_TYPE_VLAN);
+ vtr_tag1 = clib_net_to_host_u16 (si->sub.eth.outer_vlan_id);
+ vtr_tag2 = clib_net_to_host_u16 (si->sub.eth.inner_vlan_id);
+
+ if (out_config->push_bytes == 4)
+ {
+ out_config->tags[1].priority_cfi_and_id = vtr_tag1;
+ out_config->tags[1].type = push_outer_et;
+ }
+ else if (out_config->push_bytes == 8)
+ {
+ out_config->tags[0].priority_cfi_and_id = vtr_tag1;
+ out_config->tags[0].type = push_outer_et;
+ out_config->tags[1].priority_cfi_and_id = vtr_tag2;
+ out_config->tags[1].type = push_inner_et;
+ }
+
+ /* set the interface enable flags */
+ enable = (vtr_op != L2_VTR_DISABLED);
+ config->out_vtr_flag = (u8) enable;
+ l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_VTR, enable);
+ /* output vtr enable is checked explicitly in l2_output */
+
+done:
+ return error;
+}
+
+/**
+ * Get vtag tag rewrite on the given interface.
+ * Return 1 if there is an error, 0 if ok
+ */
+u32
+l2vtr_get (vlib_main_t * vlib_main, vnet_main_t * vnet_main, u32 sw_if_index, u32 * vtr_op, u32 * push_dot1q, /* ethertype of first pushed tag is dot1q/dot1ad */
+ u32 * vtr_tag1, /* first pushed tag */
+ u32 * vtr_tag2) /* second pushed tag */
+{
+ vnet_hw_interface_t *hi;
+ u32 error = 0;
+ vtr_config_t *in_config;
+
+ if (!vtr_op || !push_dot1q || !vtr_tag1 || !vtr_tag2)
+ {
+ clib_warning ("invalid arguments");
+ error = VNET_API_ERROR_INVALID_ARGUMENT;
+ goto done;
+ }
+
+ *vtr_op = L2_VTR_DISABLED;
+ *vtr_tag1 = 0;
+ *vtr_tag2 = 0;
+ *push_dot1q = 0;
+
+ hi = vnet_get_sup_hw_interface (vnet_main, sw_if_index);
+ if (!hi || (hi->hw_class_index != ethernet_hw_interface_class.index))
+ {
+ /* non-ethernet interface */
+ goto done;
+ }
+
+ if (sw_if_index >= vec_len (l2output_main.configs))
+ {
+ /* no specific config (return disabled) */
+ goto done;
+ }
+
+ /* Get the config for this interface */
+ in_config =
+ &(vec_elt_at_index (l2output_main.configs, sw_if_index)->input_vtr);
+
+ /* DISABLED */
+ if (in_config->push_and_pop_bytes == 0)
+ {
+ goto done;
+ }
+
+ /* find out vtr_op */
+ switch (in_config->pop_bytes)
+ {
+ case 0:
+ switch (in_config->push_bytes)
+ {
+ case 0:
+ /* DISABLED */
+ goto done;
+ case 4:
+ *vtr_op = L2_VTR_PUSH_1;
+ *vtr_tag1 =
+ clib_host_to_net_u16 (in_config->tags[1].priority_cfi_and_id);
+ *push_dot1q =
+ (ETHERNET_TYPE_VLAN ==
+ clib_host_to_net_u16 (in_config->tags[1].type));
+ break;
+ case 8:
+ *vtr_op = L2_VTR_PUSH_2;
+ *vtr_tag1 =
+ clib_host_to_net_u16 (in_config->tags[0].priority_cfi_and_id);
+ *vtr_tag2 =
+ clib_host_to_net_u16 (in_config->tags[1].priority_cfi_and_id);
+ *push_dot1q =
+ (ETHERNET_TYPE_VLAN ==
+ clib_host_to_net_u16 (in_config->tags[0].type));
+ break;
+ default:
+ clib_warning ("invalid push_bytes count: %d",
+ in_config->push_bytes);
+ error = VNET_API_ERROR_UNEXPECTED_INTF_STATE;
+ goto done;
+ }
+ break;
+
+ case 4:
+ switch (in_config->push_bytes)
+ {
+ case 0:
+ *vtr_op = L2_VTR_POP_1;
+ break;
+ case 4:
+ *vtr_op = L2_VTR_TRANSLATE_1_1;
+ *vtr_tag1 =
+ clib_host_to_net_u16 (in_config->tags[1].priority_cfi_and_id);
+ *push_dot1q =
+ (ETHERNET_TYPE_VLAN ==
+ clib_host_to_net_u16 (in_config->tags[1].type));
+ break;
+ case 8:
+ *vtr_op = L2_VTR_TRANSLATE_1_2;
+ *vtr_tag1 =
+ clib_host_to_net_u16 (in_config->tags[0].priority_cfi_and_id);
+ *vtr_tag2 =
+ clib_host_to_net_u16 (in_config->tags[1].priority_cfi_and_id);
+ *push_dot1q =
+ (ETHERNET_TYPE_VLAN ==
+ clib_host_to_net_u16 (in_config->tags[0].type));
+ break;
+ default:
+ clib_warning ("invalid push_bytes count: %d",
+ in_config->push_bytes);
+ error = VNET_API_ERROR_UNEXPECTED_INTF_STATE;
+ goto done;
+ }
+ break;
+
+ case 8:
+ switch (in_config->push_bytes)
+ {
+ case 0:
+ *vtr_op = L2_VTR_POP_2;
+ break;
+ case 4:
+ *vtr_op = L2_VTR_TRANSLATE_2_1;
+ *vtr_tag1 =
+ clib_host_to_net_u16 (in_config->tags[1].priority_cfi_and_id);
+ *push_dot1q =
+ (ETHERNET_TYPE_VLAN ==
+ clib_host_to_net_u16 (in_config->tags[1].type));
+ break;
+ case 8:
+ *vtr_op = L2_VTR_TRANSLATE_2_2;
+ *vtr_tag1 =
+ clib_host_to_net_u16 (in_config->tags[0].priority_cfi_and_id);
+ *vtr_tag2 =
+ clib_host_to_net_u16 (in_config->tags[1].priority_cfi_and_id);
+ *push_dot1q =
+ (ETHERNET_TYPE_VLAN ==
+ clib_host_to_net_u16 (in_config->tags[0].type));
+ break;
+ default:
+ clib_warning ("invalid push_bytes count: %d",
+ in_config->push_bytes);
+ error = VNET_API_ERROR_UNEXPECTED_INTF_STATE;
+ goto done;
+ }
+ break;
+
+ default:
+ clib_warning ("invalid pop_bytes count: %d", in_config->pop_bytes);
+ error = VNET_API_ERROR_UNEXPECTED_INTF_STATE;
+ goto done;
+ }
+
+done:
+ return error;
+}
+
+/**
+ * Set subinterface vtr enable/disable.
+ * The CLI format is:
+ * set interface l2 tag-rewrite <interface> [disable | pop 1 | pop 2 | push {dot1q|dot1ad} <tag> [<tag>]]
+ *
+ * "push" can also be replaced by "translate-{1|2}-{1|2}"
+ */
+static clib_error_t *
+int_l2_vtr (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ clib_error_t *error = 0;
+ u32 sw_if_index;
+ u32 vtr_op;
+ u32 push_dot1q = 0;
+ u32 tag1 = 0, tag2 = 0;
+
+ if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
+ {
+ error = clib_error_return (0, "unknown interface `%U'",
+ format_unformat_error, input);
+ goto done;
+ }
+
+ vtr_op = L2_VTR_DISABLED;
+
+ if (unformat (input, "disable"))
+ {
+ vtr_op = L2_VTR_DISABLED;
+ }
+ else if (unformat (input, "pop 1"))
+ {
+ vtr_op = L2_VTR_POP_1;
+ }
+ else if (unformat (input, "pop 2"))
+ {
+ vtr_op = L2_VTR_POP_2;
+
+ }
+ else if (unformat (input, "push dot1q %d %d", &tag1, &tag2))
+ {
+ vtr_op = L2_VTR_PUSH_2;
+ push_dot1q = 1;
+ }
+ else if (unformat (input, "push dot1ad %d %d", &tag1, &tag2))
+ {
+ vtr_op = L2_VTR_PUSH_2;
+
+ }
+ else if (unformat (input, "push dot1q %d", &tag1))
+ {
+ vtr_op = L2_VTR_PUSH_1;
+ push_dot1q = 1;
+ }
+ else if (unformat (input, "push dot1ad %d", &tag1))
+ {
+ vtr_op = L2_VTR_PUSH_1;
+
+ }
+ else if (unformat (input, "translate 1-1 dot1q %d", &tag1))
+ {
+ vtr_op = L2_VTR_TRANSLATE_1_1;
+ push_dot1q = 1;
+ }
+ else if (unformat (input, "translate 1-1 dot1ad %d", &tag1))
+ {
+ vtr_op = L2_VTR_TRANSLATE_1_1;
+
+ }
+ else if (unformat (input, "translate 2-1 dot1q %d", &tag1))
+ {
+ vtr_op = L2_VTR_TRANSLATE_2_1;
+ push_dot1q = 1;
+ }
+ else if (unformat (input, "translate 2-1 dot1ad %d", &tag1))
+ {
+ vtr_op = L2_VTR_TRANSLATE_2_1;
+
+ }
+ else if (unformat (input, "translate 2-2 dot1q %d %d", &tag1, &tag2))
+ {
+ vtr_op = L2_VTR_TRANSLATE_2_2;
+ push_dot1q = 1;
+ }
+ else if (unformat (input, "translate 2-2 dot1ad %d %d", &tag1, &tag2))
+ {
+ vtr_op = L2_VTR_TRANSLATE_2_2;
+
+ }
+ else if (unformat (input, "translate 1-2 dot1q %d %d", &tag1, &tag2))
+ {
+ vtr_op = L2_VTR_TRANSLATE_1_2;
+ push_dot1q = 1;
+ }
+ else if (unformat (input, "translate 1-2 dot1ad %d %d", &tag1, &tag2))
+ {
+ vtr_op = L2_VTR_TRANSLATE_1_2;
+
+ }
+ else
+ {
+ error =
+ clib_error_return (0,
+ "expecting [disable | pop 1 | pop 2 | push {dot1q|dot1ah} <tag> [<tag>]\n"
+ " | translate {1|2}-{1|2} {dot1q|dot1ah} <tag> [<tag>]] but got `%U'",
+ format_unformat_error, input);
+ goto done;
+ }
+
+ if (l2vtr_configure (vm, vnm, sw_if_index, vtr_op, push_dot1q, tag1, tag2))
+ {
+ error =
+ clib_error_return (0,
+ "vlan tag rewrite is not compatible with interface");
+ goto done;
+ }
+
+done:
+ return error;
+}
+
+/*?
+ * VLAN tag rewrite provides the ability to change the VLAN tags on a packet.
+ * Existing tags can be popped, new tags can be pushed, and existing tags can
+ * be swapped with new tags. The rewrite feature is attached to a subinterface
+ * as input and output operations. The input operation is explicitly configured.
+ * The output operation is the symmetric opposite and is automatically derived
+ * from the input operation.
+ *
+ * <b>POP:</b> For pop operations, the subinterface encapsulation (the vlan
+ * tags specified when it was created) must have at least the number of popped
+ * tags. e.g. the \"pop 2\" operation would be rejected on a single-vlan interface.
+ * The output tag-rewrite operation for pops is to push the specified number of
+ * vlan tags onto the packet. The pushed tag values are the ones in the
+ * subinterface encapsulation.
+ *
+ * <b>PUSH:</b> For push operations, the ethertype is also specified. The
+ * output tag-rewrite operation for pushes is to pop the same number of tags
+ * off the packet. If the packet doesn't have enough tags it is dropped.
+ *
+ *
+ * @cliexpar
+ * @parblock
+ * By default a subinterface has no tag-rewrite. To return a subinterface to
+ * this state use:
+ * @cliexcmd{set interface l2 tag-rewrite GigabitEthernet0/8/0.200 disable}
+ *
+ * To pop vlan tags off packets received from a subinterface, use:
+ * @cliexcmd{set interface l2 tag-rewrite GigabitEthernet0/8/0.200 pop 1}
+ * @cliexcmd{set interface l2 tag-rewrite GigabitEthernet0/8/0.200 pop 2}
+ *
+ * To push one or two vlan tags onto packets received from an interface, use:
+ * @cliexcmd{set interface l2 tag-rewrite GigabitEthernet0/8/0.200 push dot1q 100}
+ * @cliexcmd{set interface l2 tag-rewrite GigabitEthernet0/8/0.200 push dot1ad 100 150}
+ *
+ * Tags can also be translated, which is basically a combination of a pop and push.
+ * @cliexcmd{set interface l2 tag-rewrite GigabitEthernet0/8/0.200 translate 1-1 dot1ad 100}
+ * @cliexcmd{set interface l2 tag-rewrite GigabitEthernet0/8/0.200 translate 2-2 dot1ad 100 150}
+ * @cliexcmd{set interface l2 tag-rewrite GigabitEthernet0/8/0.200 translate 1-2 dot1q 100}
+ * @cliexcmd{set interface l2 tag-rewrite GigabitEthernet0/8/0.200 translate 2-1 dot1q 100 150}
+ *
+ * To display the VLAN Tag settings, show the associate bridge-domain:
+ * @cliexstart{show bridge-domain 200 detail}
+ * ID Index Learning U-Forwrd UU-Flood Flooding ARP-Term BVI-Intf
+ * 200 1 on on on on off N/A
+ *
+ * Interface Index SHG BVI VLAN-Tag-Rewrite
+ * GigabitEthernet0/8/0.200 5 0 - trans-1-1 dot1ad 100
+ * GigabitEthernet0/9/0.200 4 0 - none
+ * GigabitEthernet0/a/0.200 6 0 - none
+ * @cliexend
+ * @endparblock
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (int_l2_vtr_cli, static) = {
+ .path = "set interface l2 tag-rewrite",
+ .short_help = "set interface l2 tag-rewrite <interface> [disable | pop {1|2} | push {dot1q|dot1ad} <tag> <tag>]",
+ .function = int_l2_vtr,
+};
+/* *INDENT-ON* */
+
+/**
+ * Set subinterface pbb vtr enable/disable.
+ * The CLI format is:
+ * set interface l2 pbb-tag-rewrite <interface> [disable | pop | push | translate_pbb_stag <outer_tag> dmac <address> smac <address> s_id <nn> [b_vlanid <nn>]]
+ */
+static clib_error_t *
+int_l2_pbb_vtr (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ clib_error_t *error = 0;
+ u32 sw_if_index, tmp;
+ u32 vtr_op = L2_VTR_DISABLED;
+ u32 outer_tag = 0;
+ u8 dmac[6];
+ u8 smac[6];
+ u8 dmac_set = 0, smac_set = 0;
+ u16 b_vlanid = 0;
+ u32 s_id = ~0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat_user
+ (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
+ ;
+ else if (unformat (input, "disable"))
+ vtr_op = L2_VTR_DISABLED;
+ else if (vtr_op == L2_VTR_DISABLED && unformat (input, "pop"))
+ vtr_op = L2_VTR_POP_2;
+ else if (vtr_op == L2_VTR_DISABLED && unformat (input, "push"))
+ vtr_op = L2_VTR_PUSH_2;
+ else if (vtr_op == L2_VTR_DISABLED
+ && unformat (input, "translate_pbb_stag %d", &outer_tag))
+ vtr_op = L2_VTR_TRANSLATE_2_1;
+ else if (unformat (input, "dmac %U", unformat_ethernet_address, dmac))
+ dmac_set = 1;
+ else if (unformat (input, "smac %U", unformat_ethernet_address, smac))
+ smac_set = 1;
+ else if (unformat (input, "b_vlanid %d", &tmp))
+ b_vlanid = tmp;
+ else if (unformat (input, "s_id %d", &s_id))
+ ;
+ else
+ {
+ error = clib_error_return (0,
+ "expecting [disable | pop | push | translate_pbb_stag <outer_tag>\n"
+ "dmac <address> smac <address> s_id <nn> [b_vlanid <nn>]]");
+ goto done;
+ }
+ }
+
+ if ((vtr_op == L2_VTR_PUSH_2 || vtr_op == L2_VTR_TRANSLATE_2_1)
+ && (!dmac_set || !smac_set || s_id == ~0))
+ {
+ error = clib_error_return (0,
+ "expecting dmac <address> smac <address> s_id <nn> [b_vlanid <nn>]");
+ goto done;
+ }
+
+ if (l2pbb_configure
+ (vm, vnm, sw_if_index, vtr_op, dmac, smac, b_vlanid, s_id, outer_tag))
+ {
+ error =
+ clib_error_return (0,
+ "pbb tag rewrite is not compatible with interface");
+ goto done;
+ }
+
+done:
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (int_l2_pbb_vtr_cli, static) = {
+ .path = "set interface l2 pbb-tag-rewrite",
+ .short_help = "set interface l2 pbb-tag-rewrite <interface> [disable | pop | push | translate_pbb_stag <outer_tag> dmac <address> smac <address> s_id <nn> [b_vlanid <nn>]]",
+ .function = int_l2_pbb_vtr,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff