summaryrefslogtreecommitdiffstats
path: root/src/vnet/cdp/cdp_node.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/vnet/cdp/cdp_node.c')
-rw-r--r--src/vnet/cdp/cdp_node.c208
1 files changed, 0 insertions, 208 deletions
diff --git a/src/vnet/cdp/cdp_node.c b/src/vnet/cdp/cdp_node.c
deleted file mode 100644
index 39ac4a908fb..00000000000
--- a/src/vnet/cdp/cdp_node.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
- * Copyright (c) 2011-2016 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/cdp/cdp_node.h>
-#include <vnet/ethernet/packet.h>
-
-static vlib_node_registration_t cdp_process_node;
-
-/** \file
-
- 2 x CDP graph nodes: an "interior" node to process
- incoming announcements, and a "process" node to periodically
- send announcements.
-
- The interior node is neither pipelined nor dual-looped, because
- it would be very unusual to see more than one CDP packet in
- a given input frame. So, it's a very simple / straighforward
- example.
-*/
-
-/*
- * packet counter strings
- * Dump these counters via the "show error" CLI command
- */
-static char *cdp_error_strings[] = {
-#define _(sym,string) string,
- foreach_cdp_error
-#undef _
-};
-
-/*
- * We actually send all cdp pkts to the "error" node after scanning
- * them, so the graph node has only one next-index. The "error-drop"
- * node automatically bumps our per-node packet counters for us.
- */
-typedef enum
-{
- CDP_INPUT_NEXT_NORMAL,
- CDP_INPUT_N_NEXT,
-} cdp_next_t;
-
-/*
- * Process a frame of cdp packets
- * Expect 1 packet / frame
- */
-static uword
-cdp_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- u32 n_left_from, *from;
- cdp_input_trace_t *t0;
-
- from = vlib_frame_vector_args (frame); /* array of buffer indices */
- n_left_from = frame->n_vectors; /* number of buffer indices */
-
- while (n_left_from > 0)
- {
- u32 bi0;
- vlib_buffer_t *b0;
- u32 next0, error0;
-
- bi0 = from[0];
- b0 = vlib_get_buffer (vm, bi0);
-
- next0 = CDP_INPUT_NEXT_NORMAL;
-
- /* scan this cdp pkt. error0 is the counter index to bump */
- error0 = cdp_input (vm, b0, bi0);
- b0->error = node->errors[error0];
-
- /* If this pkt is traced, snapshoot the data */
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- int len;
- t0 = vlib_add_trace (vm, node, b0, sizeof (*t0));
- len = (b0->current_length < sizeof (t0->data))
- ? b0->current_length : sizeof (t0->data);
- t0->len = len;
- clib_memcpy (t0->data, vlib_buffer_get_current (b0), len);
- }
- /* push this pkt to the next graph node, always error-drop */
- vlib_set_next_frame_buffer (vm, node, next0, bi0);
-
- from += 1;
- n_left_from -= 1;
- }
-
- return frame->n_vectors;
-}
-
-/*
- * cdp input graph node declaration
- */
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (cdp_input_node, static) = {
- .function = cdp_node_fn,
- .name = "cdp-input",
- .vector_size = sizeof (u32),
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = CDP_N_ERROR,
- .error_strings = cdp_error_strings,
-
- .format_trace = cdp_input_format_trace,
-
- .n_next_nodes = CDP_INPUT_N_NEXT,
- .next_nodes = {
- [CDP_INPUT_NEXT_NORMAL] = "error-drop",
- },
-};
-/* *INDENT-ON* */
-
-/*
- * cdp periodic function
- */
-static uword
-cdp_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
-{
- cdp_main_t *cm = &cdp_main;
- f64 poll_time_remaining;
- uword event_type, *event_data = 0;
-
- /* So we can send events to the cdp process */
- cm->cdp_process_node_index = cdp_process_node.index;
-
- /* Dynamically register the cdp input node with the snap classifier */
- snap_register_input_protocol (vm, "cdp-input", 0xC /* ieee_oui, Cisco */ ,
- 0x2000 /* protocol CDP */ ,
- cdp_input_node.index);
-
- snap_register_input_protocol (vm, "cdp-input", 0xC /* ieee_oui, Cisco */ ,
- 0x2004 /* protocol CDP */ ,
- cdp_input_node.index);
-
-#if 0 /* retain for reference */
- /* with the hdlc classifier */
- hdlc_register_input_protocol (vm, HDLC_PROTOCOL_cdp, cdp_input_node.index);
-#endif
-
- /* with ethernet input (for SRP) */
- ethernet_register_input_type (vm, ETHERNET_TYPE_CDP /* CDP */ ,
- cdp_input_node.index);
-
- poll_time_remaining = 10.0 /* seconds */ ;
- while (1)
- {
- /* sleep until next poll time, or msg serialize event occurs */
- poll_time_remaining =
- vlib_process_wait_for_event_or_clock (vm, poll_time_remaining);
-
- event_type = vlib_process_get_events (vm, &event_data);
- switch (event_type)
- {
- case ~0: /* no events => timeout */
- break;
-
- default:
- clib_warning ("BUG: event type 0x%wx", event_type);
- break;
- }
- if (event_data)
- _vec_len (event_data) = 0;
-
- /* peer timeout scan, send announcements */
- if (vlib_process_suspend_time_is_zero (poll_time_remaining))
- {
- cdp_periodic (vm);
- poll_time_remaining = 10.0;
- }
- }
-
- return 0;
-}
-
-/*
- * cdp periodic node declaration
- */
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (cdp_process_node, static) = {
- .function = cdp_process,
- .type = VLIB_NODE_TYPE_PROCESS,
- .name = "cdp-process",
-};
-/* *INDENT-ON* */
-
-void
-vnet_cdp_node_reference (void)
-{
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */