#include <vppinfra/elog.h>
#include <vnet/ip/ip6_hop_by_hop.h>
+#include <vnet/fib/ip6_fib.h>
-ip6_hop_by_hop_main_t ip6_hop_by_hop_main;
+char *ppc_state[] = { "None", "Encap", "Decap" };
-/*
- * ip6 hop-by-hop option handling. We push pkts with h-b-h options to
- * ip6_hop_by_hop_node_fn from ip6-lookup at a cost of ~2 clocks/pkt in
- * the speed path.
- *
- * We parse through the h-b-h option TLVs, specifically looking for
- * HBH_OPTION_TYPE_IOAM_DATA_LIST. [Someone needs to get bananas from
- * IANA, aka to actually allocate the option TLV codes.]
- *
- * If we find the indicated option type, and we have remaining list
- * elements in the trace list, allocate and populate the trace list
- * element.
- *
- * At the ingress edge: punch in the h-b-h rewrite, then visit the
- * standard h-b-h option handler. We have to be careful in the standard
- * h-b-h handler, to avoid looping until we run out of rewrite space.
- * Ask me how I know that.
- *
- * Remaining work:
- * decide on egress point "pop and count" scheme
- * time stamp handling: usec since the top of the hour?
- * configure the node id
- * trace list application data support
- * cons up analysis / steering plug-in(s)
- * add configuration binary APIs, vpe_api_test_support, yang models and
- * orca code
- * perf tune: dual loop, replace memcpy w/ N x 8-byte load/stores
- *
- */
+ip6_hop_by_hop_ioam_main_t ip6_hop_by_hop_ioam_main;
-/*
- * primary h-b-h handler trace support
- * We work pretty hard on the problem for obvious reasons
- */
-typedef struct {
- u32 next_index;
- u32 trace_len;
- u8 option_data[256];
-} ip6_hop_by_hop_trace_t;
-
-static u8 * format_ioam_data_list_element (u8 * s, va_list * args)
-{
- ioam_data_list_element_t *elt = va_arg (*args, ioam_data_list_element_t *);
- u32 ttl_node_id_host_byte_order =
- clib_net_to_host_u32 (elt->ttl_node_id);
-
- s = format (s, "ttl %d node id %d ingress %d egress %d ts %u",
- ttl_node_id_host_byte_order>>24,
- ttl_node_id_host_byte_order & 0x00FFFFFF,
- elt->ingress_if,
- elt->egress_if,
- elt->timestamp);
- return s;
-}
+#define foreach_ip6_hbyh_ioam_input_next \
+ _(IP6_REWRITE, "ip6-rewrite") \
+ _(IP6_LOOKUP, "ip6-lookup") \
+ _(DROP, "error-drop")
-static u8 * format_ip6_hop_by_hop_trace (u8 * s, va_list * args)
+typedef enum
{
- CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
- CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- ip6_hop_by_hop_trace_t * t = va_arg (*args, ip6_hop_by_hop_trace_t *);
- ip6_hop_by_hop_header_t *hbh0;
- ip6_hop_by_hop_option_t *opt0, *limit0;
- ioam_trace_option_t * trace0;
- ioam_data_list_element_t * elt0;
- int elt_index;
- u8 type0;
-
- hbh0 = (ip6_hop_by_hop_header_t *)t->option_data;
-
- s = format (s, "IP6_HOP_BY_HOP: next index %d len %d traced %d\n",
- t->next_index, (hbh0->length+1)<<3, t->trace_len);
-
- opt0 = (ip6_hop_by_hop_option_t *) (hbh0+1);
- limit0 = (ip6_hop_by_hop_option_t *) ((u8 *)hbh0) + t->trace_len;
-
- while (opt0 < limit0)
- {
- type0 = opt0->type & HBH_OPTION_TYPE_MASK;
- elt_index = 0;
- switch (type0)
- {
- case HBH_OPTION_TYPE_IOAM_DATA_LIST:
- trace0 = (ioam_trace_option_t *)opt0;
- s = format (s, " Trace %d elts left\n",
- trace0->data_list_elts_left);
- elt0 = &trace0->elts[0];
- while ((u8 *) elt0 <
- ((u8 *)(&trace0->elts[0]) + trace0->hdr.length - 1
- /* -1 accounts for elts_left */))
- {
- s = format (s, " [%d] %U\n",elt_index,
- format_ioam_data_list_element, elt0);
- elt_index++;
- elt0++;
- }
-
- opt0 = (ip6_hop_by_hop_option_t *)
- (((u8 *)opt0) + opt0->length
- + sizeof (ip6_hop_by_hop_option_t));
- break;
-
- case HBH_OPTION_TYPE_IOAM_PROOF_OF_WORK:
- s = format (s, " POW opt present\n");
- opt0 = (ip6_hop_by_hop_option_t *)
- (((u8 *)opt0) + sizeof (ioam_pow_option_t));
- break;
-
- case 0: /* Pad, just stop */
- opt0 = (ip6_hop_by_hop_option_t *) ((u8 *)opt0) + 1;
- break;
-
- default:
- s = format (s, "Unknown %d", type0);
- opt0 = (ip6_hop_by_hop_option_t *)
- (((u8 *)opt0) + opt0->length
- + sizeof (ip6_hop_by_hop_option_t));
- break;
- }
- }
- return s;
-}
-
-vlib_node_registration_t ip6_hop_by_hop_node;
-
-#define foreach_ip6_hop_by_hop_error \
-_(PROCESSED, "Pkts with ip6 hop-by-hop options")
-
-typedef enum {
-#define _(sym,str) IP6_HOP_BY_HOP_ERROR_##sym,
- foreach_ip6_hop_by_hop_error
+#define _(s,n) IP6_HBYH_IOAM_INPUT_NEXT_##s,
+ foreach_ip6_hbyh_ioam_input_next
#undef _
- IP6_HOP_BY_HOP_N_ERROR,
-} ip6_hop_by_hop_error_t;
-
-static char * ip6_hop_by_hop_error_strings[] = {
-#define _(sym,string) string,
- foreach_ip6_hop_by_hop_error
-#undef _
-};
+ IP6_HBYH_IOAM_INPUT_N_NEXT,
+} ip6_hbyh_ioam_input_next_t;
-static uword
-ip6_hop_by_hop_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- ip6_main_t * im = &ip6_main;
- ip_lookup_main_t * lm = &im->lookup_main;
- ip6_hop_by_hop_main_t * hm = &ip6_hop_by_hop_main;
- u32 n_left_from, * from, * to_next;
- ip_lookup_next_t next_index;
- u32 processed = 0;
- from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors;
- next_index = node->cached_next_index;
- while (n_left_from > 0)
- {
- u32 n_left_to_next;
+/* The main h-b-h tracer will be invoked, no need to do much here */
+int
+ip6_hbh_add_register_option (u8 option,
+ u8 size,
+ int rewrite_options (u8 * rewrite_string,
+ u8 * rewrite_size))
+{
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
+ ASSERT (option < ARRAY_LEN (hm->add_options));
-#if 0 /* $$$ DUAL-LOOP ME */
- while (n_left_from >= 4 && n_left_to_next >= 2)
- {
- u32 next0 = IP6_HOP_BY_HOP_NEXT_INTERFACE_OUTPUT;
- u32 next1 = IP6_HOP_BY_HOP_NEXT_INTERFACE_OUTPUT;
- u32 sw_if_index0, sw_if_index1;
- u8 tmp0[6], tmp1[6];
- ethernet_header_t *en0, *en1;
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
-
- /* Prefetch next iteration. */
- {
- vlib_buffer_t * p2, * p3;
-
- p2 = vlib_get_buffer (vm, from[2]);
- p3 = vlib_get_buffer (vm, from[3]);
-
- vlib_prefetch_buffer_header (p2, LOAD);
- vlib_prefetch_buffer_header (p3, LOAD);
+ /* Already registered */
+ if (hm->add_options[option])
+ return (-1);
- CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE);
- }
+ hm->add_options[option] = rewrite_options;
+ hm->options_size[option] = size;
- /* speculatively enqueue b0 and b1 to the current next frame */
- to_next[0] = bi0 = from[0];
- to_next[1] = bi1 = from[1];
- from += 2;
- to_next += 2;
- n_left_from -= 2;
- n_left_to_next -= 2;
-
- b0 = vlib_get_buffer (vm, bi0);
- b1 = vlib_get_buffer (vm, bi1);
-
- /* $$$$$ Dual loop: process 2 x packets here $$$$$ */
- ASSERT (b0->current_data == 0);
- ASSERT (b1->current_data == 0);
-
- ip0 = vlib_buffer_get_current (b0);
- ip1 = vlib_buffer_get_current (b0);
-
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_RX];
-
- /* $$$$$ End of processing 2 x packets $$$$$ */
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- ip6_hop_by_hop_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- ip6_hop_by_hop_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->sw_if_index = sw_if_index1;
- t->next_index = next1;
- }
- }
-
- /* verify speculative enqueues, maybe switch current next frame */
- 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;
- u32 adj_index0;
- ip6_header_t * ip0;
- ip_adjacency_t * adj0;
- ip6_hop_by_hop_header_t *hbh0;
- ip6_hop_by_hop_option_t *opt0, *limit0;
- ioam_trace_option_t * trace0;
- ioam_data_list_element_t * elt0;
- u8 type0;
-
- /* speculatively enqueue b0 to the current next frame */
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
+ return (0);
+}
- b0 = vlib_get_buffer (vm, bi0);
+int
+ip6_hbh_add_unregister_option (u8 option)
+{
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
- ip0 = vlib_buffer_get_current (b0);
- adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX];
- adj0 = ip_get_adjacency (lm, adj_index0);
- hbh0 = (ip6_hop_by_hop_header_t *)(ip0+1);
- opt0 = (ip6_hop_by_hop_option_t *)(hbh0+1);
- limit0 = (ip6_hop_by_hop_option_t *)
- ((u8 *)hbh0 + ((hbh0->length+1)<<3));
-
- /* Scan the set of h-b-h options, process ones that we understand */
- while (opt0 < limit0)
- {
- type0 = opt0->type & HBH_OPTION_TYPE_MASK;
- switch (type0)
- {
- case HBH_OPTION_TYPE_IOAM_DATA_LIST:
- trace0 = (ioam_trace_option_t *)opt0;
- if (PREDICT_TRUE (trace0->data_list_elts_left))
- {
- trace0->data_list_elts_left--;
- elt0 = &trace0->elts[trace0->data_list_elts_left];
- elt0->ttl_node_id =
- clib_host_to_net_u32 ((ip0->hop_limit<<24)
- | hm->node_id);
- elt0->ingress_if =
- vnet_buffer(b0)->sw_if_index[VLIB_RX];
- elt0->egress_if = adj0->rewrite_header.sw_if_index;
- elt0->timestamp = 123; /* $$$$ */
- /* $$$ set elt0->app_data */
- }
-
- opt0 = (ip6_hop_by_hop_option_t *)
- (((u8 *)opt0) + opt0->length
- + sizeof (ip6_hop_by_hop_option_t));
- break;
-
- case HBH_OPTION_TYPE_IOAM_PROOF_OF_WORK:
- opt0 = (ip6_hop_by_hop_option_t *)
- (((u8 *)opt0) + sizeof (ioam_pow_option_t));
- break;
-
- case 0: /* Pad */
- opt0 = (ip6_hop_by_hop_option_t *) ((u8 *)opt0) + 1;
- goto out0;
- }
- }
-
- out0:
-
- /*
- * Since we push pkts here from the h-b-h header imposition code
- * we have to be careful what we wish for...
- */
- next0 = adj0->lookup_next_index != IP_LOOKUP_NEXT_ADD_HOP_BY_HOP ?
- adj0->lookup_next_index : adj0->saved_lookup_next_index;
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- ip6_hop_by_hop_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- u32 trace_len = (hbh0->length+1)<<3;
- t->next_index = next0;
- /* Capture the h-b-h option verbatim */
- trace_len = trace_len < ARRAY_LEN(t->option_data) ?
- trace_len : ARRAY_LEN(t->option_data);
- t->trace_len = trace_len;
- memcpy (t->option_data, hbh0, trace_len);
- }
-
- processed++;
-
- /* verify speculative enqueue, maybe switch current next frame */
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, next0);
- }
+ ASSERT (option < ARRAY_LEN (hm->add_options));
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
+ /* Not registered */
+ if (!hm->add_options[option])
+ return (-1);
- vlib_node_increment_counter (vm, ip6_hop_by_hop_node.index,
- IP6_HOP_BY_HOP_ERROR_PROCESSED, processed);
- return frame->n_vectors;
+ hm->add_options[option] = NULL;
+ hm->options_size[option] = 0;
+ return (0);
}
-VLIB_REGISTER_NODE (ip6_hop_by_hop_node) = {
- .function = ip6_hop_by_hop_node_fn,
- .name = "ip6-hop-by-hop",
- .vector_size = sizeof (u32),
- .format_trace = format_ip6_hop_by_hop_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(ip6_hop_by_hop_error_strings),
- .error_strings = ip6_hop_by_hop_error_strings,
-
- /* See ip/lookup.h */
- .n_next_nodes = IP_LOOKUP_N_NEXT,
- .next_nodes = {
- [IP_LOOKUP_NEXT_MISS] = "ip6-miss",
- [IP_LOOKUP_NEXT_DROP] = "ip6-drop",
- [IP_LOOKUP_NEXT_PUNT] = "ip6-punt",
- [IP_LOOKUP_NEXT_LOCAL] = "ip6-local",
- [IP_LOOKUP_NEXT_ARP] = "ip6-discover-neighbor",
- [IP_LOOKUP_NEXT_REWRITE] = "ip6-rewrite",
- [IP_LOOKUP_NEXT_CLASSIFY] = "ip6-classify",
- [IP_LOOKUP_NEXT_MAP] = "ip6-map",
- [IP_LOOKUP_NEXT_MAP_T] = "ip6-map-t",
- [IP_LOOKUP_NEXT_SIXRD] = "ip6-sixrd",
- /* Next 3 arcs probably never used */
- [IP_LOOKUP_NEXT_HOP_BY_HOP] = "ip6-hop-by-hop",
- [IP_LOOKUP_NEXT_ADD_HOP_BY_HOP] = "ip6-add-hop-by-hop",
- [IP_LOOKUP_NEXT_POP_HOP_BY_HOP] = "ip6-pop-hop-by-hop",
- },
-};
-
-/* The main h-b-h tracer will be invoked, no need to do much here */
-typedef struct {
+typedef struct
+{
u32 next_index;
} ip6_add_hop_by_hop_trace_t;
/* packet trace format function */
-static u8 * format_ip6_add_hop_by_hop_trace (u8 * s, va_list * args)
+static u8 *
+format_ip6_add_hop_by_hop_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 *);
- ip6_add_hop_by_hop_trace_t * t = va_arg (*args,
- ip6_add_hop_by_hop_trace_t *);
-
- s = format (s, "IP6_ADD_HOP_BY_HOP: next index %d",
- t->next_index);
+ ip6_add_hop_by_hop_trace_t *t = va_arg (*args,
+ ip6_add_hop_by_hop_trace_t *);
+
+ s = format (s, "IP6_ADD_HOP_BY_HOP: next index %d", t->next_index);
return s;
}
#define foreach_ip6_add_hop_by_hop_error \
_(PROCESSED, "Pkts w/ added ip6 hop-by-hop options")
-typedef enum {
+typedef enum
+{
#define _(sym,str) IP6_ADD_HOP_BY_HOP_ERROR_##sym,
foreach_ip6_add_hop_by_hop_error
#undef _
- IP6_ADD_HOP_BY_HOP_N_ERROR,
+ IP6_ADD_HOP_BY_HOP_N_ERROR,
} ip6_add_hop_by_hop_error_t;
-static char * ip6_add_hop_by_hop_error_strings[] = {
+static char *ip6_add_hop_by_hop_error_strings[] = {
#define _(sym,string) string,
foreach_ip6_add_hop_by_hop_error
#undef _
static uword
ip6_add_hop_by_hop_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- ip6_hop_by_hop_main_t * hm = &ip6_hop_by_hop_main;
- u32 n_left_from, * from, * to_next;
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
+ u32 n_left_from, *from, *to_next;
ip_lookup_next_t next_index;
u32 processed = 0;
- u8 * rewrite = hm->rewrite;
+ u8 *rewrite = hm->rewrite;
u32 rewrite_length = vec_len (rewrite);
from = vlib_frame_vector_args (frame);
{
u32 n_left_to_next;
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
-
-#if 0
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
while (n_left_from >= 4 && n_left_to_next >= 2)
{
- u32 next0 = IP6_ADD_HOP_BY_HOP_NEXT_INTERFACE_OUTPUT;
- u32 next1 = IP6_ADD_HOP_BY_HOP_NEXT_INTERFACE_OUTPUT;
- u32 sw_if_index0, sw_if_index1;
- u8 tmp0[6], tmp1[6];
- ethernet_header_t *en0, *en1;
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
-
+ u32 bi0, bi1;
+ vlib_buffer_t *b0, *b1;
+ u32 next0, next1;
+ ip6_header_t *ip0, *ip1;
+ ip6_hop_by_hop_header_t *hbh0, *hbh1;
+ u64 *copy_src0, *copy_dst0, *copy_src1, *copy_dst1;
+ u16 new_l0, new_l1;
+
/* Prefetch next iteration. */
{
- vlib_buffer_t * p2, * p3;
-
+ 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, CLIB_CACHE_LINE_BYTES, STORE);
- CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE);
+ CLIB_PREFETCH (p2->data - rewrite_length,
+ 2 * CLIB_CACHE_LINE_BYTES, STORE);
+ CLIB_PREFETCH (p3->data - rewrite_length,
+ 2 * CLIB_CACHE_LINE_BYTES, STORE);
}
- /* speculatively enqueue b0 and b1 to the current next frame */
+ /* speculatively enqueue b0 and b1 to the current next frame */
to_next[0] = bi0 = from[0];
to_next[1] = bi1 = from[1];
from += 2;
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
- /* $$$$$ Dual loop: process 2 x packets here $$$$$ */
- ASSERT (b0->current_data == 0);
- ASSERT (b1->current_data == 0);
-
- ip0 = vlib_buffer_get_current (b0);
- ip1 = vlib_buffer_get_current (b0);
-
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_RX];
-
- /* $$$$$ End of processing 2 x packets $$$$$ */
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- ip6_add_hop_by_hop_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- ip6_add_hop_by_hop_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->sw_if_index = sw_if_index1;
- t->next_index = next1;
- }
- }
-
- /* verify speculative enqueues, maybe switch current next frame */
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, bi1, next0, next1);
- }
-#endif
-
+ /* $$$$$ Dual loop: process 2 x packets here $$$$$ */
+ ASSERT (b0->current_data == 0);
+ ASSERT (b1->current_data == 0);
+
+ ip0 = vlib_buffer_get_current (b0);
+ ip1 = vlib_buffer_get_current (b1);
+
+ /* Copy the ip header left by the required amount */
+ copy_dst0 = (u64 *) (((u8 *) ip0) - rewrite_length);
+ copy_dst1 = (u64 *) (((u8 *) ip1) - rewrite_length);
+ copy_src0 = (u64 *) ip0;
+ copy_src1 = (u64 *) ip1;
+
+ copy_dst0[0] = copy_src0[0];
+ copy_dst0[1] = copy_src0[1];
+ copy_dst0[2] = copy_src0[2];
+ copy_dst0[3] = copy_src0[3];
+ copy_dst0[4] = copy_src0[4];
+
+ copy_dst1[0] = copy_src1[0];
+ copy_dst1[1] = copy_src1[1];
+ copy_dst1[2] = copy_src1[2];
+ copy_dst1[3] = copy_src1[3];
+ copy_dst1[4] = copy_src1[4];
+
+ vlib_buffer_advance (b0, -(word) rewrite_length);
+ vlib_buffer_advance (b1, -(word) rewrite_length);
+ ip0 = vlib_buffer_get_current (b0);
+ ip1 = vlib_buffer_get_current (b1);
+
+ hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1);
+ hbh1 = (ip6_hop_by_hop_header_t *) (ip1 + 1);
+ /* $$$ tune, rewrite_length is a multiple of 8 */
+ clib_memcpy (hbh0, rewrite, rewrite_length);
+ clib_memcpy (hbh1, rewrite, rewrite_length);
+ /* Patch the protocol chain, insert the h-b-h (type 0) header */
+ hbh0->protocol = ip0->protocol;
+ hbh1->protocol = ip1->protocol;
+ ip0->protocol = 0;
+ ip1->protocol = 0;
+ new_l0 =
+ clib_net_to_host_u16 (ip0->payload_length) + rewrite_length;
+ new_l1 =
+ clib_net_to_host_u16 (ip1->payload_length) + rewrite_length;
+ ip0->payload_length = clib_host_to_net_u16 (new_l0);
+ ip1->payload_length = clib_host_to_net_u16 (new_l1);
+
+ /* Populate the (first) h-b-h list elt */
+ next0 = IP6_HBYH_IOAM_INPUT_NEXT_IP6_LOOKUP;
+ next1 = IP6_HBYH_IOAM_INPUT_NEXT_IP6_LOOKUP;
+
+
+ /* $$$$$ End of processing 2 x packets $$$$$ */
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ ip6_add_hop_by_hop_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->next_index = next0;
+ }
+ if (b1->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ ip6_add_hop_by_hop_trace_t *t =
+ vlib_add_trace (vm, node, b1, sizeof (*t));
+ t->next_index = next1;
+ }
+ }
+ processed += 2;
+ /* verify speculative enqueues, maybe switch current next frame */
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, bi1, next0, next1);
+ }
while (n_left_from > 0 && n_left_to_next > 0)
{
- u32 bi0;
- vlib_buffer_t * b0;
- u32 next0;
- ip6_header_t * ip0;
- ip6_hop_by_hop_header_t * hbh0;
- u64 * copy_src0, * copy_dst0;
- u16 new_l0;
-
- /* speculatively enqueue b0 to the current next frame */
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0;
+ ip6_header_t *ip0;
+ ip6_hop_by_hop_header_t *hbh0;
+ u64 *copy_src0, *copy_dst0;
+ u16 new_l0;
+
+ /* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
to_next[0] = bi0;
from += 1;
b0 = vlib_get_buffer (vm, bi0);
- ip0 = vlib_buffer_get_current (b0);
-
- /* Copy the ip header left by the required amount */
- copy_dst0 = (u64 *)(((u8 *)ip0) - rewrite_length);
- copy_src0 = (u64 *) ip0;
-
- copy_dst0 [0] = copy_src0 [0];
- copy_dst0 [1] = copy_src0 [1];
- copy_dst0 [2] = copy_src0 [2];
- copy_dst0 [3] = copy_src0 [3];
- copy_dst0 [4] = copy_src0 [4];
- vlib_buffer_advance (b0, - (word)rewrite_length);
- ip0 = vlib_buffer_get_current (b0);
-
- hbh0 = (ip6_hop_by_hop_header_t *)(ip0 + 1);
- /* $$$ tune, rewrite_length is a multiple of 8 */
- memcpy (hbh0, rewrite, rewrite_length);
- /* Patch the protocol chain, insert the h-b-h (type 0) header */
- hbh0->protocol = ip0->protocol;
- ip0->protocol = 0;
- new_l0 = clib_net_to_host_u16 (ip0->payload_length) + rewrite_length;
- ip0->payload_length = clib_host_to_net_u16 (new_l0);
-
- /* Populate the (first) h-b-h list elt */
- next0 = IP_LOOKUP_NEXT_HOP_BY_HOP;
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- ip6_add_hop_by_hop_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->next_index = next0;
- }
-
- processed++;
-
- /* verify speculative enqueue, maybe switch current next frame */
+ ip0 = vlib_buffer_get_current (b0);
+
+ /* Copy the ip header left by the required amount */
+ copy_dst0 = (u64 *) (((u8 *) ip0) - rewrite_length);
+ copy_src0 = (u64 *) ip0;
+
+ copy_dst0[0] = copy_src0[0];
+ copy_dst0[1] = copy_src0[1];
+ copy_dst0[2] = copy_src0[2];
+ copy_dst0[3] = copy_src0[3];
+ copy_dst0[4] = copy_src0[4];
+ vlib_buffer_advance (b0, -(word) rewrite_length);
+ ip0 = vlib_buffer_get_current (b0);
+
+ hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1);
+ /* $$$ tune, rewrite_length is a multiple of 8 */
+ clib_memcpy (hbh0, rewrite, rewrite_length);
+ /* Patch the protocol chain, insert the h-b-h (type 0) header */
+ hbh0->protocol = ip0->protocol;
+ ip0->protocol = 0;
+ new_l0 =
+ clib_net_to_host_u16 (ip0->payload_length) + rewrite_length;
+ ip0->payload_length = clib_host_to_net_u16 (new_l0);
+
+ /* Populate the (first) h-b-h list elt */
+ next0 = IP6_HBYH_IOAM_INPUT_NEXT_IP6_LOOKUP;
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ ip6_add_hop_by_hop_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->next_index = next0;
+ }
+
+ processed++;
+
+ /* verify speculative enqueue, maybe switch current next frame */
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, ip6_add_hop_by_hop_node.index,
- IP6_ADD_HOP_BY_HOP_ERROR_PROCESSED, processed);
+ vlib_node_increment_counter (vm, ip6_add_hop_by_hop_node.index,
+ IP6_ADD_HOP_BY_HOP_ERROR_PROCESSED, processed);
return frame->n_vectors;
}
-VLIB_REGISTER_NODE (ip6_add_hop_by_hop_node) = {
- .function = ip6_add_hop_by_hop_node_fn,
- .name = "ip6-add-hop-by-hop",
- .vector_size = sizeof (u32),
- .format_trace = format_ip6_add_hop_by_hop_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(ip6_add_hop_by_hop_error_strings),
- .error_strings = ip6_add_hop_by_hop_error_strings,
-
- /* See ip/lookup.h */
- .n_next_nodes = IP_LOOKUP_N_NEXT,
- .next_nodes = {
- [IP_LOOKUP_NEXT_MISS] = "ip6-miss",
- [IP_LOOKUP_NEXT_DROP] = "ip6-drop",
- [IP_LOOKUP_NEXT_PUNT] = "ip6-punt",
- [IP_LOOKUP_NEXT_LOCAL] = "ip6-local",
- [IP_LOOKUP_NEXT_ARP] = "ip6-discover-neighbor",
- [IP_LOOKUP_NEXT_REWRITE] = "ip6-rewrite",
- [IP_LOOKUP_NEXT_CLASSIFY] = "ip6-classify",
- [IP_LOOKUP_NEXT_MAP] = "ip6-map",
- [IP_LOOKUP_NEXT_MAP_T] = "ip6-map-t",
- [IP_LOOKUP_NEXT_SIXRD] = "ip6-sixrd",
- /* Next 3 arcs probably never used */
- [IP_LOOKUP_NEXT_HOP_BY_HOP] = "ip6-hop-by-hop",
- [IP_LOOKUP_NEXT_ADD_HOP_BY_HOP] = "ip6-add-hop-by-hop",
- [IP_LOOKUP_NEXT_POP_HOP_BY_HOP] = "ip6-pop-hop-by-hop",
- },
-};
+VLIB_REGISTER_NODE (ip6_add_hop_by_hop_node) = /* *INDENT-OFF* */
+{
+ .function = ip6_add_hop_by_hop_node_fn,.name =
+ "ip6-add-hop-by-hop",.vector_size = sizeof (u32),.format_trace =
+ format_ip6_add_hop_by_hop_trace,.type =
+ VLIB_NODE_TYPE_INTERNAL,.n_errors =
+ ARRAY_LEN (ip6_add_hop_by_hop_error_strings),.error_strings =
+ ip6_add_hop_by_hop_error_strings,
+ /* See ip/lookup.h */
+ .n_next_nodes = IP6_HBYH_IOAM_INPUT_N_NEXT,.next_nodes =
+ {
+#define _(s,n) [IP6_HBYH_IOAM_INPUT_NEXT_##s] = n,
+ foreach_ip6_hbyh_ioam_input_next
+#undef _
+ }
+,};
+/* *INDENT-ON* */
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_add_hop_by_hop_node,
+ ip6_add_hop_by_hop_node_fn)
/* The main h-b-h tracer was already invoked, no need to do much here */
-typedef struct {
- u32 next_index;
-} ip6_pop_hop_by_hop_trace_t;
+ typedef struct
+ {
+ u32 next_index;
+ } ip6_pop_hop_by_hop_trace_t;
/* packet trace format function */
-static u8 * format_ip6_pop_hop_by_hop_trace (u8 * s, va_list * args)
+ static u8 *format_ip6_pop_hop_by_hop_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 *);
- ip6_pop_hop_by_hop_trace_t * t = va_arg (*args, ip6_pop_hop_by_hop_trace_t *);
-
- s = format (s, "IP6_POP_HOP_BY_HOP: next index %d",
- t->next_index);
+ ip6_pop_hop_by_hop_trace_t *t =
+ va_arg (*args, ip6_pop_hop_by_hop_trace_t *);
+
+ s = format (s, "IP6_POP_HOP_BY_HOP: next index %d", t->next_index);
return s;
}
+int
+ip6_hbh_pop_register_option (u8 option,
+ int options (ip6_header_t * ip,
+ ip6_hop_by_hop_option_t * opt))
+{
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
+
+ ASSERT (option < ARRAY_LEN (hm->pop_options));
+
+ /* Already registered */
+ if (hm->pop_options[option])
+ return (-1);
+
+ hm->pop_options[option] = options;
+
+ return (0);
+}
+
+int
+ip6_hbh_pop_unregister_option (u8 option)
+{
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
+
+ ASSERT (option < ARRAY_LEN (hm->pop_options));
+
+ /* Not registered */
+ if (!hm->pop_options[option])
+ return (-1);
+
+ hm->pop_options[option] = NULL;
+ return (0);
+}
+
vlib_node_registration_t ip6_pop_hop_by_hop_node;
#define foreach_ip6_pop_hop_by_hop_error \
_(PROCESSED, "Pkts w/ removed ip6 hop-by-hop options") \
-_(NO_HOHO, "Pkts w/ no ip6 hop-by-hop options")
+_(NO_HOHO, "Pkts w/ no ip6 hop-by-hop options") \
+_(OPTION_FAILED, "ip6 pop hop-by-hop failed to process")
-typedef enum {
+typedef enum
+{
#define _(sym,str) IP6_POP_HOP_BY_HOP_ERROR_##sym,
foreach_ip6_pop_hop_by_hop_error
#undef _
- IP6_POP_HOP_BY_HOP_N_ERROR,
+ IP6_POP_HOP_BY_HOP_N_ERROR,
} ip6_pop_hop_by_hop_error_t;
-static char * ip6_pop_hop_by_hop_error_strings[] = {
+static char *ip6_pop_hop_by_hop_error_strings[] = {
#define _(sym,string) string,
foreach_ip6_pop_hop_by_hop_error
#undef _
};
+static inline void
+ioam_pop_hop_by_hop_processing (vlib_main_t * vm,
+ ip6_header_t * ip0,
+ ip6_hop_by_hop_header_t * hbh0)
+{
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
+ ip6_hop_by_hop_option_t *opt0, *limit0;
+ u8 type0;
+
+ if (!hbh0 || !ip0)
+ return;
+
+ opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1);
+ limit0 = (ip6_hop_by_hop_option_t *)
+ ((u8 *) hbh0 + ((hbh0->length + 1) << 3));
+
+ /* Scan the set of h-b-h options, process ones that we understand */
+ while (opt0 < limit0)
+ {
+ type0 = opt0->type;
+ switch (type0)
+ {
+ case 0: /* Pad1 */
+ opt0 = (ip6_hop_by_hop_option_t *) ((u8 *) opt0) + 1;
+ continue;
+ case 1: /* PadN */
+ break;
+ default:
+ if (hm->pop_options[type0])
+ {
+ if ((*hm->pop_options[type0]) (ip0, opt0) < 0)
+ {
+ vlib_node_increment_counter (vm,
+ ip6_pop_hop_by_hop_node.index,
+ IP6_POP_HOP_BY_HOP_ERROR_OPTION_FAILED,
+ 1);
+ }
+ }
+ }
+ opt0 =
+ (ip6_hop_by_hop_option_t *) (((u8 *) opt0) + opt0->length +
+ sizeof (ip6_hop_by_hop_option_t));
+ }
+}
+
static uword
ip6_pop_hop_by_hop_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- ip6_hop_by_hop_main_t * hm = &ip6_hop_by_hop_main;
- ip6_main_t * im = &ip6_main;
- ip_lookup_main_t * lm = &im->lookup_main;
- u32 n_left_from, * from, * to_next;
+ ip6_main_t *im = &ip6_main;
+ ip_lookup_main_t *lm = &im->lookup_main;
+ u32 n_left_from, *from, *to_next;
ip_lookup_next_t next_index;
u32 processed = 0;
u32 no_header = 0;
- u32 (*ioam_end_of_path_cb) (vlib_main_t *, vlib_node_runtime_t *,
- vlib_buffer_t *, ip6_header_t *,
- ip_adjacency_t *);
-
- ioam_end_of_path_cb = hm->ioam_end_of_path_cb;
-
+
from = vlib_frame_vector_args (frame);
n_left_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);
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-#if 0
while (n_left_from >= 4 && n_left_to_next >= 2)
{
- u32 next0 = IP6_POP_HOP_BY_HOP_NEXT_INTERFACE_OUTPUT;
- u32 next1 = IP6_POP_HOP_BY_HOP_NEXT_INTERFACE_OUTPUT;
- u32 sw_if_index0, sw_if_index1;
- u8 tmp0[6], tmp1[6];
- ethernet_header_t *en0, *en1;
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
-
+ u32 bi0, bi1;
+ vlib_buffer_t *b0, *b1;
+ u32 next0, next1;
+ u32 adj_index0, adj_index1;
+ ip6_header_t *ip0, *ip1;
+ ip_adjacency_t *adj0, *adj1;
+ ip6_hop_by_hop_header_t *hbh0, *hbh1;
+ u64 *copy_dst0, *copy_src0, *copy_dst1, *copy_src1;
+ u16 new_l0, new_l1;
+
/* Prefetch next iteration. */
{
- vlib_buffer_t * p2, * p3;
-
+ 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 (p3->data, CLIB_CACHE_LINE_BYTES, STORE);
}
- /* speculatively enqueue b0 and b1 to the current next frame */
+ /* speculatively enqueue b0 and b1 to the current next frame */
to_next[0] = bi0 = from[0];
to_next[1] = bi1 = from[1];
from += 2;
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
- /* $$$$$ Dual loop: process 2 x packets here $$$$$ */
- ASSERT (b0->current_data == 0);
- ASSERT (b1->current_data == 0);
-
- ip0 = vlib_buffer_get_current (b0);
- ip1 = vlib_buffer_get_current (b0);
-
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_RX];
- sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_RX];
-
- /* $$$$$ End of processing 2 x packets $$$$$ */
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- ip6_pop_hop_by_hop_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- ip6_pop_hop_by_hop_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->sw_if_index = sw_if_index1;
- t->next_index = next1;
- }
- }
-
- /* verify speculative enqueues, maybe switch current next frame */
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, bi1, next0, next1);
- }
-#endif
+ /* $$$$$ Dual loop: process 2 x packets here $$$$$ */
+ ASSERT (b0->current_data == 0);
+ ASSERT (b1->current_data == 0);
+
+ ip0 = vlib_buffer_get_current (b0);
+ ip1 = vlib_buffer_get_current (b1);
+ adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX];
+ adj_index1 = vnet_buffer (b1)->ip.adj_index[VLIB_TX];
+ adj0 = ip_get_adjacency (lm, adj_index0);
+ adj1 = ip_get_adjacency (lm, adj_index1);
+
+ next0 = adj0->lookup_next_index;
+ next1 = adj1->lookup_next_index;
+
+ hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1);
+ hbh1 = (ip6_hop_by_hop_header_t *) (ip1 + 1);
+
+ ioam_pop_hop_by_hop_processing (vm, ip0, hbh0);
+ ioam_pop_hop_by_hop_processing (vm, ip1, hbh1);
+
+ vlib_buffer_advance (b0, (hbh0->length + 1) << 3);
+ vlib_buffer_advance (b1, (hbh1->length + 1) << 3);
+
+ new_l0 = clib_net_to_host_u16 (ip0->payload_length) -
+ ((hbh0->length + 1) << 3);
+ new_l1 = clib_net_to_host_u16 (ip1->payload_length) -
+ ((hbh1->length + 1) << 3);
+
+ ip0->payload_length = clib_host_to_net_u16 (new_l0);
+ ip1->payload_length = clib_host_to_net_u16 (new_l1);
+
+ ip0->protocol = hbh0->protocol;
+ ip1->protocol = hbh1->protocol;
+
+ copy_src0 = (u64 *) ip0;
+ copy_src1 = (u64 *) ip1;
+ copy_dst0 = copy_src0 + (hbh0->length + 1);
+ copy_dst0[4] = copy_src0[4];
+ copy_dst0[3] = copy_src0[3];
+ copy_dst0[2] = copy_src0[2];
+ copy_dst0[1] = copy_src0[1];
+ copy_dst0[0] = copy_src0[0];
+ copy_dst1 = copy_src1 + (hbh1->length + 1);
+ copy_dst1[4] = copy_src1[4];
+ copy_dst1[3] = copy_src1[3];
+ copy_dst1[2] = copy_src1[2];
+ copy_dst1[1] = copy_src1[1];
+ copy_dst1[0] = copy_src1[0];
+ processed += 2;
+ /* $$$$$ End of processing 2 x packets $$$$$ */
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ ip6_pop_hop_by_hop_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->next_index = next0;
+ }
+ if (b1->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ ip6_pop_hop_by_hop_trace_t *t =
+ vlib_add_trace (vm, node, b1, sizeof (*t));
+ t->next_index = next1;
+ }
+ }
+
+ /* verify speculative enqueues, maybe switch current next frame */
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, bi1, next0, next1);
+ }
while (n_left_from > 0 && n_left_to_next > 0)
{
- u32 bi0;
- vlib_buffer_t * b0;
- u32 next0;
- u32 adj_index0;
- ip6_header_t * ip0;
- ip_adjacency_t * adj0;
- ip6_hop_by_hop_header_t *hbh0;
- u64 * copy_dst0, * copy_src0;
- u16 new_l0;
-
- /* speculatively enqueue b0 to the current next frame */
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0;
+ u32 adj_index0;
+ ip6_header_t *ip0;
+ ip_adjacency_t *adj0;
+ ip6_hop_by_hop_header_t *hbh0;
+ u64 *copy_dst0, *copy_src0;
+ u16 new_l0;
+
+ /* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
to_next[0] = bi0;
from += 1;
b0 = vlib_get_buffer (vm, bi0);
- ip0 = vlib_buffer_get_current (b0);
- adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX];
- adj0 = ip_get_adjacency (lm, adj_index0);
-
- /* Perfectly normal to end up here w/ out h-b-h header */
- if (PREDICT_TRUE (ip0->protocol == 0))
- {
- hbh0 = (ip6_hop_by_hop_header_t *)(ip0+1);
-
- /* Collect data from trace via callback */
- next0 = ioam_end_of_path_cb ?
- ioam_end_of_path_cb (vm, node, b0, ip0, adj0)
- : adj0->saved_lookup_next_index;
-
-
- /* Pop the trace data */
- vlib_buffer_advance (b0, (hbh0->length+1)<<3);
- new_l0 = clib_net_to_host_u16 (ip0->payload_length) -
- ((hbh0->length+1)<<3);
- ip0->payload_length = clib_host_to_net_u16 (new_l0);
- ip0->protocol = hbh0->protocol;
- copy_src0 = (u64 *)ip0;
- copy_dst0 = copy_src0 + (hbh0->length+1);
- copy_dst0 [4] = copy_src0[4];
- copy_dst0 [3] = copy_src0[3];
- copy_dst0 [2] = copy_src0[2];
- copy_dst0 [1] = copy_src0[1];
- copy_dst0 [0] = copy_src0[0];
- processed++;
- }
- else
- {
- next0 = adj0->saved_lookup_next_index;
- no_header++;
- }
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- ip6_pop_hop_by_hop_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->next_index = next0;
- }
-
- /* verify speculative enqueue, maybe switch current next frame */
+ ip0 = vlib_buffer_get_current (b0);
+ adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX];
+ adj0 = ip_get_adjacency (lm, adj_index0);
+
+ /* Default use the next_index from the adjacency. */
+ next0 = adj0->lookup_next_index;
+
+ /* Perfectly normal to end up here w/ out h-b-h header */
+ hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1);
+
+ /* TODO:Temporarily doing it here.. do this validation in end_of_path_cb */
+ ioam_pop_hop_by_hop_processing (vm, ip0, hbh0);
+ /* Pop the trace data */
+ vlib_buffer_advance (b0, (hbh0->length + 1) << 3);
+ new_l0 = clib_net_to_host_u16 (ip0->payload_length) -
+ ((hbh0->length + 1) << 3);
+ ip0->payload_length = clib_host_to_net_u16 (new_l0);
+ ip0->protocol = hbh0->protocol;
+ copy_src0 = (u64 *) ip0;
+ copy_dst0 = copy_src0 + (hbh0->length + 1);
+ copy_dst0[4] = copy_src0[4];
+ copy_dst0[3] = copy_src0[3];
+ copy_dst0[2] = copy_src0[2];
+ copy_dst0[1] = copy_src0[1];
+ copy_dst0[0] = copy_src0[0];
+ processed++;
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ ip6_pop_hop_by_hop_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->next_index = next0;
+ }
+
+ /* verify speculative enqueue, maybe switch current next frame */
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, ip6_pop_hop_by_hop_node.index,
- IP6_POP_HOP_BY_HOP_ERROR_PROCESSED, processed);
- vlib_node_increment_counter (vm, ip6_pop_hop_by_hop_node.index,
- IP6_POP_HOP_BY_HOP_ERROR_NO_HOHO, no_header);
+ vlib_node_increment_counter (vm, ip6_pop_hop_by_hop_node.index,
+ IP6_POP_HOP_BY_HOP_ERROR_PROCESSED, processed);
+ vlib_node_increment_counter (vm, ip6_pop_hop_by_hop_node.index,
+ IP6_POP_HOP_BY_HOP_ERROR_NO_HOHO, no_header);
return frame->n_vectors;
}
-VLIB_REGISTER_NODE (ip6_pop_hop_by_hop_node) = {
- .function = ip6_pop_hop_by_hop_node_fn,
- .name = "ip6-pop-hop-by-hop",
- .vector_size = sizeof (u32),
- .format_trace = format_ip6_pop_hop_by_hop_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(ip6_pop_hop_by_hop_error_strings),
- .error_strings = ip6_pop_hop_by_hop_error_strings,
-
- /* See ip/lookup.h */
- .n_next_nodes = IP_LOOKUP_N_NEXT,
- .next_nodes = {
- [IP_LOOKUP_NEXT_MISS] = "ip6-miss",
- [IP_LOOKUP_NEXT_DROP] = "ip6-drop",
- [IP_LOOKUP_NEXT_PUNT] = "ip6-punt",
- [IP_LOOKUP_NEXT_LOCAL] = "ip6-local",
- [IP_LOOKUP_NEXT_ARP] = "ip6-discover-neighbor",
- [IP_LOOKUP_NEXT_REWRITE] = "ip6-rewrite",
- [IP_LOOKUP_NEXT_CLASSIFY] = "ip6-classify",
- [IP_LOOKUP_NEXT_MAP] = "ip6-map",
- [IP_LOOKUP_NEXT_MAP_T] = "ip6-map-t",
- [IP_LOOKUP_NEXT_SIXRD] = "ip6-sixrd",
- /* Next 3 arcs probably never used */
- [IP_LOOKUP_NEXT_HOP_BY_HOP] = "ip6-hop-by-hop",
- [IP_LOOKUP_NEXT_ADD_HOP_BY_HOP] = "ip6-add-hop-by-hop",
- [IP_LOOKUP_NEXT_POP_HOP_BY_HOP] = "ip6-pop-hop-by-hop",
- },
-};
-
-
-static clib_error_t *
-ip6_hop_by_hop_init (vlib_main_t * vm)
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip6_pop_hop_by_hop_node) =
{
- ip6_hop_by_hop_main_t * hm = &ip6_hop_by_hop_main;
+ .function = ip6_pop_hop_by_hop_node_fn,.name =
+ "ip6-pop-hop-by-hop",.vector_size = sizeof (u32),.format_trace =
+ format_ip6_pop_hop_by_hop_trace,.type =
+ VLIB_NODE_TYPE_INTERNAL,.sibling_of = "ip6-lookup",.n_errors =
+ ARRAY_LEN (ip6_pop_hop_by_hop_error_strings),.error_strings =
+ ip6_pop_hop_by_hop_error_strings,
+ /* See ip/lookup.h */
+.n_next_nodes = 0,};
+
+/* *INDENT-ON* */
+
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_pop_hop_by_hop_node,
+ ip6_pop_hop_by_hop_node_fn)
+ static clib_error_t *ip6_hop_by_hop_ioam_init (vlib_main_t * vm)
+{
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
hm->vlib_main = vm;
- hm->vnet_main = vnet_get_main();
-
- return 0;
+ hm->vnet_main = vnet_get_main ();
+ hm->unix_time_0 = (u32) time (0); /* Store starting time */
+ hm->vlib_time_0 = vlib_time_now (vm);
+ hm->ioam_flag = IOAM_HBYH_MOD;
+ memset (hm->add_options, 0, sizeof (hm->add_options));
+ memset (hm->pop_options, 0, sizeof (hm->pop_options));
+ memset (hm->options_size, 0, sizeof (hm->options_size));
+
+ return (0);
}
-VLIB_INIT_FUNCTION (ip6_hop_by_hop_init);
+VLIB_INIT_FUNCTION (ip6_hop_by_hop_ioam_init);
-int ip6_ioam_set_rewrite (u8 **rwp, u32 trace_option_elts, int has_pow_option)
+int
+ip6_ioam_set_rewrite (u8 ** rwp, int has_trace_option,
+ int has_pot_option, int has_ppc_option)
{
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
u8 *rewrite = 0;
u32 size, rnd_size;
ip6_hop_by_hop_header_t *hbh;
- ioam_trace_option_t * trace_option;
- ioam_pow_option_t * pow_option;
u8 *current;
+ u8 trace_data_size = 0;
+ u8 pot_data_size = 0;
vec_free (*rwp);
- if (trace_option_elts == 0 && has_pow_option == 0)
- return 0;
-
- if (trace_option_elts * sizeof (ioam_data_list_element_t) > 254)
- return VNET_API_ERROR_INVALID_VALUE;
+ if (has_trace_option == 0 && has_pot_option == 0)
+ return -1;
/* Work out how much space we need */
size = sizeof (ip6_hop_by_hop_header_t);
- if (trace_option_elts)
+ //if (has_trace_option && hm->get_sizeof_options[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] != 0)
+ if (has_trace_option
+ && hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] != 0)
{
size += sizeof (ip6_hop_by_hop_option_t);
- size += trace_option_elts * (sizeof (ioam_data_list_element_t));
+ size += hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST];
}
- if (has_pow_option)
+ if (has_pot_option
+ && hm->add_options[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT] != 0)
{
size += sizeof (ip6_hop_by_hop_option_t);
- size += sizeof (ioam_pow_option_t);
+ size += hm->options_size[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT];
}
/* Round to a multiple of 8 octets */
rnd_size = (size + 7) & ~7;
/* allocate it, zero-fill / pad by construction */
- vec_validate (rewrite, rnd_size-1);
+ vec_validate (rewrite, rnd_size - 1);
hbh = (ip6_hop_by_hop_header_t *) rewrite;
/* Length of header in 8 octet units, not incl first 8 octets */
- hbh->length = (rnd_size>>3) - 1;
- current = (u8 *)(hbh+1);
-
- if (trace_option_elts)
+ hbh->length = (rnd_size >> 3) - 1;
+ current = (u8 *) (hbh + 1);
+
+ if (has_trace_option
+ && hm->add_options[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] != 0)
{
- trace_option = (ioam_trace_option_t *)current;
- trace_option->hdr.type = HBH_OPTION_TYPE_IOAM_DATA_LIST
- | HBH_OPTION_TYPE_DATA_CHANGE_ENROUTE;
- trace_option->hdr.length = 1 /*data_list_elts_left */ +
- trace_option_elts * sizeof (ioam_data_list_element_t);
- trace_option->data_list_elts_left = trace_option_elts;
- current += sizeof (ioam_trace_option_t) +
- trace_option_elts * sizeof (ioam_data_list_element_t);
+ if (0 != (hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST]))
+ {
+ trace_data_size =
+ hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST];
+ if (0 ==
+ hm->add_options[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] (current,
+ &trace_data_size))
+ current += hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST];
+ }
}
- if (has_pow_option)
+ if (has_pot_option
+ && hm->add_options[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT] != 0)
{
- pow_option = (ioam_pow_option_t *)current;
- pow_option->hdr.type = HBH_OPTION_TYPE_IOAM_PROOF_OF_WORK
- | HBH_OPTION_TYPE_DATA_CHANGE_ENROUTE;
- pow_option->hdr.length = sizeof (ioam_pow_option_t) -
- sizeof (ip6_hop_by_hop_option_t);
- current += sizeof (ioam_pow_option_t);
+ pot_data_size = hm->options_size[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT];
+ if (0 ==
+ hm->add_options[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT] (current,
+ &pot_data_size))
+ current +=
+ sizeof (hm->options_size[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT]);
}
-
+
*rwp = rewrite;
return 0;
}
-static clib_error_t *
-ip6_ioam_set_rewrite_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+clib_error_t *
+clear_ioam_rewrite_fn (void)
+{
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
+
+ vec_free (hm->rewrite);
+ hm->rewrite = 0;
+ hm->has_trace_option = 0;
+ hm->has_pot_option = 0;
+ hm->has_ppc_option = 0;
+
+ return 0;
+}
+
+clib_error_t *
+clear_ioam_rewrite_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ return (clear_ioam_rewrite_fn ());
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ip6_clear_ioam_rewrite_cmd, static) =
+{
+.path = "clear ioam rewrite",.short_help = "clear ioam rewrite",.function =
+ clear_ioam_rewrite_command_fn,};
+/* *INDENT-ON* */
+
+clib_error_t *
+ip6_ioam_enable (int has_trace_option, int has_pot_option, int has_ppc_option)
{
- ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main;
- u32 trace_option_elts = 0;
- int has_pow_option = 0;
int rv;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "trace-elts %d", &trace_option_elts))
- ;
- else if (unformat (input, "pow"))
- has_pow_option = 1;
- else
- break;
- }
-
- rv = ip6_ioam_set_rewrite (&hm->rewrite, trace_option_elts, has_pow_option);
-
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
+ rv = ip6_ioam_set_rewrite (&hm->rewrite, has_trace_option,
+ has_pot_option, has_ppc_option);
+
switch (rv)
{
case 0:
+ hm->has_trace_option = has_trace_option;
+ hm->has_pot_option = has_pot_option;
+ hm->has_ppc_option = has_ppc_option;
break;
+
default:
- return clib_error_return (0, "ip6_ioam_set_rewrite returned %d", rv);
+ return clib_error_return_code (0, rv, 0,
+ "ip6_ioam_set_rewrite returned %d", rv);
+ }
+
+ return 0;
+}
+
+
+static clib_error_t *
+ip6_set_ioam_rewrite_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ int has_trace_option = 0;
+ int has_pot_option = 0;
+ int has_ppc_option = 0;
+ clib_error_t *rv = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "trace"))
+ has_trace_option = 1;
+ else if (unformat (input, "pot"))
+ has_pot_option = 1;
+ else if (unformat (input, "ppc encap"))
+ has_ppc_option = PPC_ENCAP;
+ else if (unformat (input, "ppc decap"))
+ has_ppc_option = PPC_DECAP;
+ else if (unformat (input, "ppc none"))
+ has_ppc_option = PPC_NONE;
+ else
+ break;
+ }
+
+
+ rv = ip6_ioam_enable (has_trace_option, has_pot_option, has_ppc_option);
+
+ return rv;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ip6_set_ioam_rewrite_cmd, static) =
+{
+.path = "set ioam rewrite",.short_help =
+ "set ioam [trace] [pot] [ppc <encap|decap>]",.function =
+ ip6_set_ioam_rewrite_command_fn,};
+/* *INDENT-ON* */
+
+static clib_error_t *
+ip6_show_ioam_summary_cmd_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
+ u8 *s = 0;
+
+
+ if (!is_zero_ip6_address (&hm->adj))
+ {
+ s = format (s, " REWRITE FLOW CONFIGS - \n");
+ s = format (s, " Destination Address : %U\n",
+ format_ip6_address, &hm->adj, sizeof (ip6_address_t));
+ s =
+ format (s, " Flow operation : %d (%s)\n",
+ hm->ioam_flag,
+ (hm->ioam_flag ==
+ IOAM_HBYH_ADD) ? "Add" : ((hm->ioam_flag ==
+ IOAM_HBYH_MOD) ? "Mod" : "Pop"));
}
-
+ else
+ {
+ s = format (s, " REWRITE FLOW CONFIGS - Not configured\n");
+ }
+
+
+ s = format (s, " TRACE OPTION - %d (%s)\n",
+ hm->has_trace_option,
+ (hm->has_trace_option ? "Enabled" : "Disabled"));
+ if (hm->has_trace_option)
+ s =
+ format (s,
+ "Try 'show ioam trace and show ioam-trace profile' for more information\n");
+
+
+ s = format (s, " POT OPTION - %d (%s)\n",
+ hm->has_pot_option,
+ (hm->has_pot_option ? "Enabled" : "Disabled"));
+ if (hm->has_pot_option)
+ s =
+ format (s,
+ "Try 'show ioam pot and show pot profile' for more information\n");
+
+ s = format (s, " EDGE TO EDGE - PPC OPTION - %d (%s)\n",
+ hm->has_ppc_option, ppc_state[hm->has_ppc_option]);
+ if (hm->has_ppc_option)
+ s = format (s, "Try 'show ioam ppc' for more information\n");
+
+ vlib_cli_output (vm, "%v", s);
+ vec_free (s);
return 0;
}
-VLIB_CLI_COMMAND (ip6_ioam_set_rewrite_cmd, static) = {
- .path = "ioam set rewrite",
- .short_help = "ioam set rewrite [trace-elts <nn>] [pow]",
- .function = ip6_ioam_set_rewrite_command_fn,
-};
-
-int ip6_ioam_set_destination (ip6_address_t *addr, u32 mask_width, u32 vrf_id,
- int is_add, int is_pop, int is_none)
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ip6_show_ioam_run_cmd, static) =
+{
+.path = "show ioam summary",.short_help =
+ "Summary of IOAM configuration",.function =
+ ip6_show_ioam_summary_cmd_fn,};
+/* *INDENT-ON* */
+
+int
+ip6_ioam_set_destination (ip6_address_t * addr, u32 mask_width, u32 vrf_id,
+ int is_add, int is_pop, int is_none)
{
- ip6_main_t * im = &ip6_main;
- ip_lookup_main_t * lm = &im->lookup_main;
- ip_adjacency_t * adj;
+ ip6_main_t *im = &ip6_main;
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
+ ip_lookup_main_t *lm = &im->lookup_main;
+ ip_adjacency_t *adj;
u32 fib_index;
- u32 len, adj_index;
- int i, rv;
- uword * p;
- BVT(clib_bihash_kv) kv, value;
+ u32 adj_index;
if ((is_add + is_pop + is_none) != 1)
return VNET_API_ERROR_INVALID_VALUE_2;
/* Go find the adjacency we're supposed to tickle */
- p = hash_get (im->fib_index_by_table_id, vrf_id);
+ fib_index = ip6_fib_index_from_table_id (vrf_id);
- if (p == 0)
+ if (~0 == fib_index)
return VNET_API_ERROR_NO_SUCH_FIB;
- fib_index = p[0];
-
- len = vec_len (im->prefix_lengths_in_search_order);
-
- for (i = 0; i < len; i++)
- {
- int dst_address_length = im->prefix_lengths_in_search_order[i];
- ip6_address_t * mask = &im->fib_masks[dst_address_length];
-
- if (dst_address_length != mask_width)
- continue;
-
- kv.key[0] = addr->as_u64[0] & mask->as_u64[0];
- kv.key[1] = addr->as_u64[1] & mask->as_u64[1];
- kv.key[2] = ((u64)((fib_index))<<32) | dst_address_length;
-
- rv = BV(clib_bihash_search_inline_2)(&im->ip6_lookup_table, &kv, &value);
- if (rv == 0)
- goto found;
+ adj_index = ip6_fib_table_fwding_lookup (im, fib_index, addr);
- }
- return VNET_API_ERROR_NO_SUCH_ENTRY;
-
- found:
+ ASSERT (!"Not an ADJ");
/* Got it, modify as directed... */
- adj_index = value.value;
adj = ip_get_adjacency (lm, adj_index);
/* Restore original lookup-next action */
adj->saved_lookup_next_index = adj->lookup_next_index;
if (is_add)
- adj->lookup_next_index = IP_LOOKUP_NEXT_ADD_HOP_BY_HOP;
+ adj->lookup_next_index =
+ (ip_lookup_next_t) IP6_LOOKUP_NEXT_ADD_HOP_BY_HOP;
if (is_pop)
- adj->lookup_next_index = IP_LOOKUP_NEXT_POP_HOP_BY_HOP;
+ adj->lookup_next_index =
+ (ip_lookup_next_t) IP6_LOOKUP_NEXT_POP_HOP_BY_HOP;
+ hm->adj = *addr;
+ hm->ioam_flag = (is_add ? IOAM_HBYH_ADD :
+ (is_pop ? IOAM_HBYH_POP : IOAM_HBYH_MOD));
return 0;
}
-
+
static clib_error_t *
-ip6_ioam_set_destination_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ip6_set_ioam_destination_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
ip6_address_t addr;
u32 mask_width = ~0;
int is_pop = 0;
int is_none = 0;
u32 vrf_id = 0;
- int rv;
+ // int rv;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (input, "%U/%d",
- unformat_ip6_address, &addr, &mask_width))
- ;
+ if (unformat (input, "%U/%d", unformat_ip6_address, &addr, &mask_width))
+ ;
else if (unformat (input, "vrf-id %d", &vrf_id))
- ;
+ ;
else if (unformat (input, "add"))
- is_add = 1;
+ is_add = 1;
else if (unformat (input, "pop"))
- is_pop = 1;
+ is_pop = 1;
else if (unformat (input, "none"))
- is_none = 1;
+ is_none = 1;
else
- break;
+ break;
}
if ((is_add + is_pop + is_none) != 1)
if (mask_width == ~0)
return clib_error_return (0, "<address>/<mask-width> required");
- rv = ip6_ioam_set_destination (&addr, mask_width, vrf_id,
- is_add, is_pop, is_none);
+ /* rv = ip6_ioam_set_destination (&addr, mask_width, vrf_id, */
+ /* is_add, is_pop, is_none); */
- switch (rv)
- {
- case 0:
- break;
- default:
- return clib_error_return (0, "ip6_ioam_set_destination returned %d", rv);
- }
-
- return 0;
+ /* switch (rv) */
+ /* { */
+ /* case 0: */
+ /* break; */
+ /* default: */
+ /* return clib_error_return (0, "ip6_ioam_set_destination returned %d", */
+ /* rv); */
+ /* } */
+
+ /* return 0; */
+
+ return clib_error_return (0,
+ "ip6_ioam_set_destination Currnetly Disabled due to FIB2.0",
+ 1);
}
-VLIB_CLI_COMMAND (ip6_ioam_set_destination_cmd, static) = {
- .path = "ioam set destination",
- .short_help = "ioam set destination <ip6-address>/<width> add | pop | none",
- .function = ip6_ioam_set_destination_command_fn,
-};
-
-void vnet_register_ioam_end_of_path_callback (void *cb)
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ip6_set_ioam_destination_cmd, static) =
{
- ip6_hop_by_hop_main_t * hm = &ip6_hop_by_hop_main;
+.path = "set ioam destination",.short_help =
+ "set ioam destination <ip6-address>/<width> add | pop | none",.function
+ = ip6_set_ioam_destination_command_fn,};
+/* *INDENT-ON* */
+
+
+void
+vnet_register_ioam_end_of_path_callback (void *cb)
+{
+ ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
hm->ioam_end_of_path_cb = cb;
}
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff