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authorDamjan Marion <damarion@cisco.com>2017-04-20 11:42:28 +0200
committerDamjan Marion <dmarion.lists@gmail.com>2017-04-24 14:49:00 +0000
commit757585db71b78c4edf91ba011be419264de43d1a (patch)
treed12a78253ba81a0feab0c40dcae2aefc13438873 /build-root/emacs-lisp/tunnel-decap-skel.el
parent53129423a6f4e43b39f7547424fbaea99e56f7e2 (diff)
Move emacs stuff to extras/
Change-Id: Ibbb7d8500e9064215cf912bd00bdf72a748f8a27 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'build-root/emacs-lisp/tunnel-decap-skel.el')
-rw-r--r--build-root/emacs-lisp/tunnel-decap-skel.el299
1 files changed, 0 insertions, 299 deletions
diff --git a/build-root/emacs-lisp/tunnel-decap-skel.el b/build-root/emacs-lisp/tunnel-decap-skel.el
deleted file mode 100644
index 380273b67a2..00000000000
--- a/build-root/emacs-lisp/tunnel-decap-skel.el
+++ /dev/null
@@ -1,299 +0,0 @@
-;;; tunnel-decap-skel.el - tunnel decapsulation skeleton
-
-(require 'skeleton)
-
-(define-skeleton skel-tunnel-decap
-"Insert a tunnel decap implementation"
-nil
-'(setq encap_stack (skeleton-read "encap_stack (e.g ip4_udp_lisp): "))
-'(setq ENCAP_STACK (upcase encap_stack))
-'(setq encap-stack (replace-regexp-in-string "_" "-" encap_stack))
-'(setq ENCAP-STACK (upcase encap-stack))
-"
-#include <vlib/vlib.h>
-#include <vnet/pg/pg.h>
-#include <vnet/" encap-stack "/" encap_stack ".h>
-
-typedef struct {
- u32 next_index;
- u32 tunnel_index;
- u32 error;
- " encap_stack "_header_t h;
-} " encap_stack "_rx_trace_t;
-
-static u8 * format_" encap_stack "_rx_trace (u8 * s, va_list * args)
-{
- CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
- CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- " encap_stack "_rx_trace_t * t = va_arg (*args, " encap_stack "_rx_trace_t *);
-
- if (t->tunnel_index != ~0)
- {
- s = format (s, \"" ENCAP-STACK ": tunnel %d next %d error %d\",
- t->tunnel_index, t->next_index, t->error);
- }
- else
- {
- s = format (s, \"" ENCAP-STACK ": no tunnel next %d error %d\\n\",
- t->next_index, t->error);
- }
- s = format (s, \"\\n %U\", format_" encap_stack "_header_with_length, &t->h,
- (u32) sizeof (t->h) /* max size */);
- return s;
-}
-
-static uword
-" encap_stack "_input (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- u32 n_left_from, next_index, * from, * to_next;
- " encap_stack "_main_t * ngm = &" encap_stack "_main;
- u32 last_tunnel_index = ~0;
- " encap_stack "_tunnel_key_t last_key;
- u32 pkts_decapsulated = 0;
-
- memset (&last_key, 0xff, sizeof (last_key));
-
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
-
- next_index = node->cached_next_index;
-
- while (n_left_from > 0)
- {
- u32 n_left_to_next;
-
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
-
-#if 0 /* $$$ dual loop when the single loop works */
- while (n_left_from >= 4 && n_left_to_next >= 2)
- {
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
- nsh_unicast_header_t * h0, * h1;
- u32 label0, label1;
- u32 next0, next1;
- uword * p0, * p1;
-
- /* Prefetch next iteration. */
- {
- vlib_buffer_t * p2, * p3;
-
- p2 = vlib_get_buffer (vm, from[2]);
- p3 = vlib_get_buffer (vm, from[3]);
-
- vlib_prefetch_buffer_header (p2, LOAD);
- vlib_prefetch_buffer_header (p3, LOAD);
-
- CLIB_PREFETCH (p2->data, 2*CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH (p3->data, 2*CLIB_CACHE_LINE_BYTES, LOAD);
- }
-
- bi0 = from[0];
- bi1 = from[1];
- to_next[0] = bi0;
- to_next[1] = bi1;
- from += 2;
- to_next += 2;
- n_left_to_next -= 2;
- n_left_from -= 2;
-
- b0 = vlib_get_buffer (vm, bi0);
- b1 = vlib_get_buffer (vm, bi1);
-
- h0 = vlib_buffer_get_current (b0);
- h1 = vlib_buffer_get_current (b1);
-
- next0 = next1 = " ENCAP_STACK "_INPUT_NEXT_IP4_INPUT;
-
- label0 = clib_net_to_host_u32 (h0->label_exp_s_ttl);
- label1 = clib_net_to_host_u32 (h1->label_exp_s_ttl);
-
- /*
- * Translate label contents into a fib index.
- * This is a decent sanity check, and guarantees
- * a sane FIB for the downstream lookup
- */
- label0 = vnet_nsh_uc_get_label (label0);
- label1 = vnet_nsh_uc_get_label (label1);
-
- /* If 2xlabels match, and match the 1-wide cache, use it */
- if (label0 == label1 && rt->last_label == label0)
- {
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = rt->last_fib_index;
- vnet_buffer(b1)->sw_if_index[VLIB_TX] = rt->last_fib_index;
- }
- else
- {
- p0 = hash_get (rt->mm->fib_index_by_nsh_label, label0);
- if (PREDICT_FALSE (p0 == 0))
- {
- next0 = " ENCAP_STACK "_INPUT_NEXT_DROP;
- b0->error = node->errors[NSH_ERROR_BAD_LABEL];
- }
- else
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = p0[0];
-
- p1 = hash_get (rt->mm->fib_index_by_nsh_label, label1);
- if (PREDICT_FALSE (p1 == 0))
- {
- next1 = " ENCAP_STACK "_INPUT_NEXT_DROP;
- b1->error = node->errors[NSH_ERROR_BAD_LABEL];
- }
- else
- {
- vnet_buffer(b1)->sw_if_index[VLIB_TX] = p1[0];
- rt->last_fib_index = p1[0];
- rt->last_label = label1;
- }
- }
-
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- nsh_rx_trace_t *tr = vlib_add_trace (vm, node,
- b0, sizeof (*tr));
- tr->label_exp_s_ttl = label0;
- }
- if (PREDICT_FALSE(b1->flags & VLIB_BUFFER_IS_TRACED))
- {
- nsh_rx_trace_t *tr = vlib_add_trace (vm, node,
- b1, sizeof (*tr));
- tr->label_exp_s_ttl = label1;
- }
-
- vlib_buffer_advance (b0, sizeof (*h0));
- vlib_buffer_advance (b1, sizeof (*h1));
-
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, bi1, next0, next1);
- }
-#endif
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 bi0;
- vlib_buffer_t * b0;
- u32 next0;
- " encap_stack "_header_t * iuX0;
- uword * p0;
- u32 tunnel_index0;
- " encap_stack "_tunnel_t * t0;
- " encap_stack "_tunnel_key_t key0;
- u32 error0;
-
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
-
- /*
- * udp leaves current_data pointing at the tunnel header
- * $$$$ FIXME
- */
- vlib_buffer_advance
- (b0, -(word)(sizeof(udp_header_t)+sizeof(ip4_header_t)));
-
- iuX0 = vlib_buffer_get_current (b0);
-
- /* pop (ip, udp, lisp-gpe) */
- vlib_buffer_advance (b0, sizeof (*iuX0));
-
- tunnel_index0 = ~0;
- error0 = 0;
- next0 = " ENCAP_STACK "_INPUT_NEXT_DROP;
-
- key0.src = iuX0->ip4.src_address.as_u32;
- key0.iid = iuX0->lisp.iid;
-
- /* $$$ validate key comparison */
- if (PREDICT_FALSE ((key0.as_u64[0] != last_key.as_u64[0])))
- {
- p0 = hash_get_mem (ngm->" encap_stack "_tunnel_by_key, &key0);
-
- if (p0 == 0)
- {
- error0 = " ENCAP_STACK "_ERROR_NO_SUCH_TUNNEL;
- goto trace0;
- }
-
- last_key.as_u64[0] = key0.as_u64[0];
- tunnel_index0 = last_tunnel_index = p0[0];
- }
- else
- tunnel_index0 = last_tunnel_index;
-
- t0 = pool_elt_at_index (ngm->tunnels, tunnel_index0);
-
- next0 = t0->decap_next_index;
-
- /* Required to make the l2 tag push / pop code work on l2 subifs */
- vnet_update_l2_len (b0);
-
- /*
- * ip[46] lookup in the configured FIB
- * " encap-stack ", here's the encap tunnel sw_if_index
- */
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = t0->decap_fib_index;
- pkts_decapsulated ++;
-
- trace0:
- b0->error = error0 ? node->errors[error0] : 0;
-
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- " encap_stack "_rx_trace_t *tr
- = vlib_add_trace (vm, node, b0, sizeof (*tr));
- tr->next_index = next0;
- tr->error = error0;
- tr->tunnel_index = tunnel_index0;
- tr->h = iuX0->lisp;
- }
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, next0);
- }
-
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
- vlib_node_increment_counter (vm, " encap_stack "_input_node.index,
- " ENCAP_STACK "_ERROR_DECAPSULATED,
- pkts_decapsulated);
- return from_frame->n_vectors;
-}
-
-static char * " encap_stack "_error_strings[] = {
-#define " encap_stack "_error(n,s) s,
-#include <vnet/" encap-stack "/" encap_stack "_error.def>
-#undef " encap_stack "_error
-#undef _
-};
-
-VLIB_REGISTER_NODE (" encap_stack "_input_node) = {
- .function = \"" encap_stack "_input\",
- .name = \"" encap-stack "-input\",
- /* Takes a vector of packets. */
- .vector_size = sizeof (u32),
-
- .n_errors = " ENCAP_STACK "_N_ERROR,
- .error_strings = " encap_stack "_error_strings,
-
- .n_next_nodes = " ENCAP_STACK "_INPUT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [" ENCAP_STACK "_INPUT_NEXT_##s] = n,
- foreach_" encap_stack "_input_next
-#undef _
- },
-
- .format_buffer = format_" encap_stack "_header_with_length,
- .format_trace = format_" encap_stack "_rx_trace,
- // $$$$ .unformat_buffer = unformat_" encap_stack "_header,
-};
-
-")