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-rw-r--r--src/vnet/span/span_api.c153
1 files changed, 153 insertions, 0 deletions
diff --git a/src/vnet/span/span_api.c b/src/vnet/span/span_api.c
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+++ b/src/vnet/span/span_api.c
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+/*
+ *------------------------------------------------------------------
+ * 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_span;
+#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:
+ */