aboutsummaryrefslogtreecommitdiffstats
path: root/hicn-plugin/src/pg.c
diff options
context:
space:
mode:
Diffstat (limited to 'hicn-plugin/src/pg.c')
-rw-r--r--hicn-plugin/src/pg.c1323
1 files changed, 217 insertions, 1106 deletions
diff --git a/hicn-plugin/src/pg.c b/hicn-plugin/src/pg.c
index 2f98e9c16..e3dda0520 100644
--- a/hicn-plugin/src/pg.c
+++ b/hicn-plugin/src/pg.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2017-2021 Cisco and/or its affiliates.
+ * Copyright (c) 2021 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:
@@ -18,57 +18,13 @@
#include <vnet/pg/pg.h>
#include <vnet/ip/ip.h>
#include <vnet/ethernet/ethernet.h>
+#include <vnet/fib/fib_entry_track.h>
#include "hicn.h"
#include "pg.h"
#include "parser.h"
#include "infra.h"
-
-/* Registration struct for a graph node */
-vlib_node_registration_t hicn_pg_interest_node;
-vlib_node_registration_t hicn_pg_data_node;
-
-/* Stats, which end up called "error" even though they aren't... */
-#define foreach_hicnpg_error \
- _ (PROCESSED, "hICN PG packets processed") \
- _ (DROPPED, "hICN PG packets dropped") \
- _ (INTEREST_MSGS_GENERATED, "hICN PG Interests generated") \
- _ (CONTENT_MSGS_RECEIVED, "hICN PG Content msgs received")
-
-typedef enum
-{
-#define _(sym, str) HICNPG_ERROR_##sym,
- foreach_hicnpg_error
-#undef _
- HICNPG_N_ERROR,
-} hicnpg_error_t;
-
-static char *hicnpg_error_strings[] = {
-#define _(sym, string) string,
- foreach_hicnpg_error
-#undef _
-};
-
-/*
- * Next graph nodes, which reference the list in the actual registration
- * block below
- */
-typedef enum
-{
- HICNPG_INTEREST_NEXT_V4_LOOKUP,
- HICNPG_INTEREST_NEXT_V6_LOOKUP,
- HICNPG_INTEREST_NEXT_DROP,
- HICNPG_N_NEXT,
-} hicnpg_interest_next_t;
-
-/* Trace context struct */
-typedef struct
-{
- u32 next_index;
- u32 sw_if_index;
- u8 pkt_type;
- u16 msg_type;
-} hicnpg_trace_t;
+#include "route.h"
hicnpg_main_t hicnpg_main = { .index = (u32) 0,
.index_ifaces = (u32) 1,
@@ -78,307 +34,38 @@ hicnpg_main_t hicnpg_main = { .index = (u32) 0,
.n_ifaces = (u32) 1,
.sw_if = (u32) 0 };
-hicnpg_server_main_t hicnpg_server_main = {
- .node_index = 0,
-};
-
-/* packet trace format function */
-static u8 *
-format_hicnpg_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 *);
- hicnpg_trace_t *t = va_arg (*args, hicnpg_trace_t *);
-
- s = format (s, "HICNPG: pkt: %d, msg %d, sw_if_index %d, next index %d",
- (int) t->pkt_type, (int) t->msg_type, t->sw_if_index,
- t->next_index);
- return (s);
-}
-
-always_inline void hicn_rewrite_interestv4 (vlib_main_t *vm, vlib_buffer_t *b0,
- u32 seq_number, u16 lifetime,
- u32 next_flow, u32 iface);
-
-always_inline void hicn_rewrite_interestv6 (vlib_main_t *vm, vlib_buffer_t *b0,
- u32 seq_number, u16 lifetime,
- u32 next_flow, u32 iface);
-
-always_inline void convert_interest_to_data_v4 (vlib_main_t *vm,
- vlib_buffer_t *b0,
- vlib_buffer_t *rb, u32 bi0);
-
-always_inline void convert_interest_to_data_v6 (vlib_main_t *vm,
- vlib_buffer_t *b0,
- vlib_buffer_t *rb, u32 bi0);
-
-always_inline void calculate_tcp_checksum_v4 (vlib_main_t *vm,
- vlib_buffer_t *b0);
+/**
+ * Pool of hicnpg_server_t
+ */
+hicnpg_server_t *hicnpg_server_pool;
-always_inline void calculate_tcp_checksum_v6 (vlib_main_t *vm,
- vlib_buffer_t *b0);
/*
- * Node function for the icn packet-generator client. The goal here is to
- * manipulate/tweak a stream of packets that have been injected by the vpp
- * packet generator to generate icn request traffic.
+ * hicnph servrer FIB node type
*/
-static uword
-hicnpg_client_interest_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node,
- vlib_frame_t *frame)
-{
- u32 n_left_from, *from, *to_next;
- hicnpg_interest_next_t next_index;
- u32 pkts_processed = 0, pkts_dropped = 0;
- u32 interest_msgs_generated = 0;
- u32 bi0, bi1;
- vlib_buffer_t *b0, *b1;
- u8 pkt_type0 = 0, pkt_type1 = 0;
- u16 msg_type0 = 0, msg_type1 = 0;
- hicn_header_t *hicn0 = NULL, *hicn1 = NULL;
- hicn_name_t name0, name1;
- u16 namelen0, namelen1;
- hicnpg_main_t *hpgm = &hicnpg_main;
- int iface = 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;
-
- 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 = HICNPG_INTEREST_NEXT_DROP;
- u32 next1 = HICNPG_INTEREST_NEXT_DROP;
- u32 sw_if_index0 = ~0, sw_if_index1 = ~0;
- u8 isv6_0;
- u8 isv6_1;
-
- /* 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), STORE);
- CLIB_PREFETCH (p3->data, (2 * CLIB_CACHE_LINE_BYTES), STORE);
- }
-
- /*
- * 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);
-
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
- vnet_buffer (b0)->sw_if_index[VLIB_RX] = hpgm->sw_if;
- vnet_buffer (b1)->sw_if_index[VLIB_RX] = hpgm->sw_if;
-
- /* Check icn packets, locate names */
- if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0,
- &isv6_0) == HICN_ERROR_NONE)
- {
- /* this node grabs only interests */
-
- /* Increment the appropriate message counter */
- interest_msgs_generated++;
-
- iface = (hpgm->index_ifaces % hpgm->n_ifaces);
- /* Rewrite and send */
- isv6_0 ?
- hicn_rewrite_interestv6 (
- vm, b0, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number,
- hpgm->interest_lifetime, hpgm->index % hpgm->n_flows,
- iface) :
- hicn_rewrite_interestv4 (
- vm, b0, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number,
- hpgm->interest_lifetime, hpgm->index % hpgm->n_flows, iface);
-
- hpgm->index_ifaces++;
- if (iface == (hpgm->n_ifaces - 1))
- hpgm->index++;
-
- next0 = isv6_0 ? HICNPG_INTEREST_NEXT_V6_LOOKUP :
- HICNPG_INTEREST_NEXT_V4_LOOKUP;
- }
- if (hicn_interest_parse_pkt (b1, &name1, &namelen1, &hicn1,
- &isv6_1) == HICN_ERROR_NONE)
- {
- /* this node grabs only interests */
-
- /* Increment the appropriate message counter */
- interest_msgs_generated++;
-
- iface = (hpgm->index_ifaces % hpgm->n_ifaces);
- /* Rewrite and send */
- isv6_1 ?
- hicn_rewrite_interestv6 (
- vm, b1, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number,
- hpgm->interest_lifetime, hpgm->index % hpgm->n_flows,
- iface) :
- hicn_rewrite_interestv4 (
- vm, b1, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number,
- hpgm->interest_lifetime, hpgm->index % hpgm->n_flows, iface);
-
- hpgm->index_ifaces++;
- if (iface == (hpgm->n_ifaces - 1))
- hpgm->index++;
-
- next1 = isv6_1 ? HICNPG_INTEREST_NEXT_V6_LOOKUP :
- HICNPG_INTEREST_NEXT_V4_LOOKUP;
- }
- /* Send pkt to next node */
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0;
- vnet_buffer (b1)->sw_if_index[VLIB_TX] = ~0;
-
- pkts_processed += 2;
-
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- hicnpg_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->pkt_type = pkt_type0;
- t->msg_type = msg_type0;
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- hicnpg_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->pkt_type = pkt_type1;
- t->msg_type = msg_type1;
- t->sw_if_index = sw_if_index1;
- t->next_index = next1;
- }
- }
- if (next0 == HICNPG_INTEREST_NEXT_DROP)
- {
- pkts_dropped++;
- }
- if (next1 == HICNPG_INTEREST_NEXT_DROP)
- {
- pkts_dropped++;
- }
- /*
- * 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 next0 = HICNPG_INTEREST_NEXT_DROP;
- u32 sw_if_index0;
- u8 isv6_0;
-
- /* 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;
-
- b0 = vlib_get_buffer (vm, bi0);
-
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- vnet_buffer (b0)->sw_if_index[VLIB_RX] = hpgm->sw_if;
-
- /* Check icn packets, locate names */
- if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0,
- &isv6_0) == HICN_ERROR_NONE)
- {
- /* this node grabs only interests */
-
- /* Increment the appropriate message counter */
- interest_msgs_generated++;
-
- iface = (hpgm->index_ifaces % hpgm->n_ifaces);
-
- /* Rewrite and send */
- isv6_0 ?
- hicn_rewrite_interestv6 (
- vm, b0, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number,
- hpgm->interest_lifetime, hpgm->index % hpgm->n_flows,
- iface) :
- hicn_rewrite_interestv4 (
- vm, b0, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number,
- hpgm->interest_lifetime, hpgm->index % hpgm->n_flows, iface);
-
- hpgm->index_ifaces++;
- if (iface == (hpgm->n_ifaces - 1))
- hpgm->index++;
+fib_node_type_t hicnpg_server_fib_node_type;
- next0 = isv6_0 ? HICNPG_INTEREST_NEXT_V6_LOOKUP :
- HICNPG_INTEREST_NEXT_V4_LOOKUP;
- }
- /* Send pkt to ip lookup */
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0;
-
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
- (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- hicnpg_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
- t->pkt_type = pkt_type0;
- t->msg_type = msg_type0;
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
- pkts_processed += 1;
-
- if (next0 == HICNPG_INTEREST_NEXT_DROP)
- {
- pkts_dropped++;
- }
- /*
- * 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, hicn_pg_interest_node.index,
- HICNPG_ERROR_PROCESSED, pkts_processed);
- vlib_node_increment_counter (vm, hicn_pg_interest_node.index,
- HICNPG_ERROR_DROPPED, pkts_dropped);
- vlib_node_increment_counter (vm, hicn_pg_interest_node.index,
- HICNPG_ERROR_INTEREST_MSGS_GENERATED,
- interest_msgs_generated);
+/**
+ * Registered DPO type.
+ */
+dpo_type_t hicnpg_server_dpo_type;
- return (frame->n_vectors);
+static void
+hicnpg_server_restack (hicnpg_server_t *hicnpg_server)
+{
+ dpo_stack (
+ hicnpg_server_dpo_type, fib_proto_to_dpo (hicnpg_server->prefix.fp_proto),
+ &hicnpg_server->dpo,
+ fib_entry_contribute_ip_forwarding (hicnpg_server->fib_entry_index));
}
-void
-hicn_rewrite_interestv4 (vlib_main_t *vm, vlib_buffer_t *b0, u32 seq_number,
- u16 interest_lifetime, u32 next_flow, u32 iface)
+static hicnpg_server_t *
+hicnpg_server_from_fib_node (fib_node_t *node)
{
+#if 1
+ ASSERT (hicnpg_server_fib_node_type == node->fn_type);
+ return ((hicnpg_server_t *) (((char *) node) -
+ STRUCT_OFFSET_OF (hicnpg_server_t, fib_node)));
+#else
hicn_header_t *h0 = vlib_buffer_get_current (b0);
/* Generate the right src and dst corresponding to flow and iface */
@@ -386,16 +73,17 @@ hicn_rewrite_interestv4 (vlib_main_t *vm, vlib_buffer_t *b0, u32 seq_number,
.ip4 = hicnpg_main.pgen_clt_src_addr.ip4,
};
hicn_name_t dst_name = {
- .ip4.prefix_as_ip4 = hicnpg_main.pgen_clt_hicn_name->fp_addr.ip4,
- .ip4.suffix = seq_number,
+ .prefix.v4.as_u32 = hicnpg_main.pgen_clt_hicn_name->fp_addr.ip4.as_u32,
+ .suffix = seq_number,
};
src_addr.ip4.as_u32 += clib_host_to_net_u32 (iface);
- dst_name.ip4.prefix_as_ip4.as_u32 += clib_net_to_host_u32 (next_flow);
+ dst_name.prefix.v4.as_u32 += clib_net_to_host_u32 (next_flow);
/* Update locator and name */
hicn_type_t type = hicn_get_buffer (b0)->type;
- HICN_OPS4->set_interest_locator (type, &h0->protocol, &src_addr);
+ HICN_OPS4->set_interest_locator (type, &h0->protocol,
+ (hicn_ip_address_t *) &src_addr);
HICN_OPS4->set_interest_name (type, &h0->protocol, &dst_name);
/* Update lifetime (currently L4 checksum is not updated) */
@@ -403,44 +91,38 @@ hicn_rewrite_interestv4 (vlib_main_t *vm, vlib_buffer_t *b0, u32 seq_number,
/* Update checksums */
HICN_OPS4->update_checksums (type, &h0->protocol, 0, 0);
+#endif
}
/**
- * @brief Rewrite the IPv6 header as the next generated packet
- *
- * Set up a name prefix
- * - etiher generate interest in which the name varies only after the prefix
- * (inc : seq_number), then the flow acts on the prefix (CHECK)
- * seq_number => TCP, FLOW =>
- *
- * SRC : pgen_clt_src_addr.ip6 DST = generate name (pgen_clt_hicn_name.ip6)
- * ffff:ffff:ffff:ffff ffff:ffff:ffff:ffff
- * \__/ \__/
- * +iface + flow
- * Source is used to emulate different consumers.
- * FIXME iface is ill-named, better name it consumer id
- * Destination is used to iterate on the content.
+ * Function definition to backwalk a FIB node
*/
-void
-hicn_rewrite_interestv6 (vlib_main_t *vm, vlib_buffer_t *b0, u32 seq_number,
- u16 interest_lifetime, u32 next_flow, u32 iface)
+static fib_node_back_walk_rc_t
+hicnpg_server_fib_back_walk (fib_node_t *node, fib_node_back_walk_ctx_t *ctx)
{
- hicn_header_t *h0 = vlib_buffer_get_current (b0);
+ hicnpg_server_restack (hicnpg_server_from_fib_node (node));
+#if 1
+ return FIB_NODE_BACK_WALK_CONTINUE;
+#else
/* Generate the right src and dst corresponding to flow and iface */
ip46_address_t src_addr = {
.ip6 = hicnpg_main.pgen_clt_src_addr.ip6,
};
hicn_name_t dst_name = {
- .ip6.prefix_as_ip6 = hicnpg_main.pgen_clt_hicn_name->fp_addr.ip6,
- .ip6.suffix = seq_number,
+ .prefix.v6.as_u64 = {
+ hicnpg_main.pgen_clt_hicn_name->fp_addr.ip6.as_u64[0],
+ hicnpg_main.pgen_clt_hicn_name->fp_addr.ip6.as_u64[1],
+ },
+ .suffix = seq_number,
};
src_addr.ip6.as_u32[3] += clib_host_to_net_u32 (iface);
- dst_name.ip6.prefix_as_ip6.as_u32[3] += clib_net_to_host_u32 (next_flow);
+ dst_name.prefix.v6.as_u32[3] += clib_net_to_host_u32 (next_flow);
/* Update locator and name */
hicn_type_t type = hicn_get_buffer (b0)->type;
- HICN_OPS6->set_interest_locator (type, &h0->protocol, &src_addr);
+ HICN_OPS6->set_interest_locator (type, &h0->protocol,
+ (hicn_ip_address_t *) &src_addr);
HICN_OPS6->set_interest_name (type, &h0->protocol, &dst_name);
/* Update lifetime */
@@ -448,811 +130,240 @@ hicn_rewrite_interestv6 (vlib_main_t *vm, vlib_buffer_t *b0, u32 seq_number,
/* Update checksums */
calculate_tcp_checksum_v6 (vm, b0);
+#endif
}
-void
-calculate_tcp_checksum_v4 (vlib_main_t *vm, vlib_buffer_t *b0)
+/**
+ * Function definition to get a FIB node from its index
+ */
+static fib_node_t *
+hicnpg_server_fib_node_get (fib_node_index_t index)
{
- ip4_header_t *ip0;
- tcp_header_t *tcp0;
- ip_csum_t sum0;
- u32 tcp_len0;
+ hicnpg_server_t *hpg_server;
- ip0 = (ip4_header_t *) (vlib_buffer_get_current (b0));
- tcp0 =
- (tcp_header_t *) (vlib_buffer_get_current (b0) + sizeof (ip4_header_t));
- tcp_len0 = clib_net_to_host_u16 (ip0->length) - sizeof (ip4_header_t);
+ hpg_server = pool_elt_at_index (hicnpg_server_pool, index);
- /* Initialize checksum with header. */
- if (BITS (sum0) == 32)
- {
- sum0 = clib_mem_unaligned (&ip0->src_address, u32);
- sum0 =
- ip_csum_with_carry (sum0, clib_mem_unaligned (&ip0->dst_address, u32));
- }
- else
- sum0 = clib_mem_unaligned (&ip0->src_address, u64);
-
- sum0 = ip_csum_with_carry (
- sum0, clib_host_to_net_u32 (tcp_len0 + (ip0->protocol << 16)));
-
- /* Invalidate possibly old checksum. */
- tcp0->checksum = 0;
-
- u32 tcp_offset = sizeof (ip4_header_t);
- sum0 = ip_incremental_checksum_buffer (vm, b0, tcp_offset, tcp_len0, sum0);
-
- tcp0->checksum = ~ip_csum_fold (sum0);
+ return (&hpg_server->fib_node);
}
-void
-calculate_tcp_checksum_v6 (vlib_main_t *vm, vlib_buffer_t *b0)
+/**
+ * Function definition to inform the FIB node that its last lock has gone.
+ */
+static void
+hicnpg_server_fib_last_lock_gone (fib_node_t *node)
{
- ip6_header_t *ip0;
- tcp_header_t *tcp0;
- ip_csum_t sum0;
- u32 tcp_len0;
+ hicnpg_server_t *hpg_server;
- ip0 = (ip6_header_t *) (vlib_buffer_get_current (b0));
- tcp0 =
- (tcp_header_t *) (vlib_buffer_get_current (b0) + sizeof (ip6_header_t));
- tcp_len0 = clib_net_to_host_u16 (ip0->payload_length);
+ hpg_server = hicnpg_server_from_fib_node (node);
- /* Initialize checksum with header. */
- if (BITS (sum0) == 32)
- {
- sum0 = clib_mem_unaligned (&ip0->src_address, u32);
- sum0 =
- ip_csum_with_carry (sum0, clib_mem_unaligned (&ip0->dst_address, u32));
- }
- else
- sum0 = clib_mem_unaligned (&ip0->src_address, u64);
-
- sum0 = ip_csum_with_carry (
- sum0, clib_host_to_net_u32 (tcp_len0 + (ip0->protocol << 16)));
-
- /* Invalidate possibly old checksum. */
- tcp0->checksum = 0;
-
- u32 tcp_offset = sizeof (ip6_header_t);
- sum0 = ip_incremental_checksum_buffer (vm, b0, tcp_offset, tcp_len0, sum0);
+ /**
+ * reset the stacked DPO to unlock it
+ */
+ dpo_reset (&hpg_server->dpo);
- tcp0->checksum = ~ip_csum_fold (sum0);
+ pool_put (hicnpg_server_pool, hpg_server);
}
-VLIB_REGISTER_NODE (hicn_pg_interest_node) = {
- .function = hicnpg_client_interest_node_fn,
- .name = "hicnpg-interest",
- .vector_size = sizeof (u32),
- .format_trace = format_hicnpg_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN (hicnpg_error_strings),
- .error_strings = hicnpg_error_strings,
- .n_next_nodes = HICNPG_N_NEXT,
- .next_nodes = { [HICNPG_INTEREST_NEXT_V4_LOOKUP] = "ip4-lookup",
- [HICNPG_INTEREST_NEXT_V6_LOOKUP] = "ip6-lookup",
- [HICNPG_INTEREST_NEXT_DROP] = "error-drop" },
-};
-
-/*
- * Next graph nodes, which reference the list in the actual registration
- * block below
- */
-typedef enum
-{
- HICNPG_DATA_NEXT_DROP,
- HICNPG_DATA_NEXT_LOOKUP4,
- HICNPG_DATA_NEXT_LOOKUP6,
- HICNPG_DATA_N_NEXT,
-} hicnpg_data_next_t;
-
-/* Trace context struct */
-typedef struct
-{
- u32 next_index;
- u32 sw_if_index;
- u8 pkt_type;
- u16 msg_type;
-} icnpg_data_trace_t;
-
-/* packet trace format function */
-static u8 *
-format_hicnpg_data_trace (u8 *s, va_list *args)
+static void
+hicnpg_server_dpo_lock (dpo_id_t *dpo)
{
- CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
- CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- hicnpg_trace_t *t = va_arg (*args, hicnpg_trace_t *);
-
- s = format (s, "HICNPG: pkt: %d, msg %d, sw_if_index %d, next index %d",
- (int) t->pkt_type, (int) t->msg_type, t->sw_if_index,
- t->next_index);
- return (s);
+ hicnpg_server_t *hpg_server;
+ hpg_server = hicnpg_server_get (dpo->dpoi_index);
+ fib_node_lock (&hpg_server->fib_node);
}
-static_always_inline int
-match_ip4_name (u32 *name, fib_prefix_t *prefix)
+static void
+hicnpg_server_dpo_unlock (dpo_id_t *dpo)
{
- u32 xor = 0;
-
- xor = *name & prefix->fp_addr.ip4.data_u32;
-
- return xor == prefix->fp_addr.ip4.data_u32;
+ hicnpg_server_t *hpg_server;
+ hpg_server = hicnpg_server_get (dpo->dpoi_index);
+ fib_node_unlock (&hpg_server->fib_node);
}
-static_always_inline int
-match_ip6_name (u8 *name, fib_prefix_t *prefix)
+static u8 *
+format_hicnpg_server_i (u8 *s, va_list *args)
{
- union
- {
- u32x4 as_u32x4;
- u64 as_u64[2];
- u32 as_u32[4];
- } xor_sum __attribute__ ((aligned (sizeof (u32x4))));
-
- xor_sum.as_u64[0] = ((u64 *) name)[0] & prefix->fp_addr.ip6.as_u64[0];
- xor_sum.as_u64[1] = ((u64 *) name)[1] & prefix->fp_addr.ip6.as_u64[1];
+ index_t hicnpg_server_i = va_arg (*args, index_t);
+ // u32 indent = va_arg (*args, u32);
+ u32 details = va_arg (*args, u32);
+ // vlib_counter_t to;
+ hicnpg_server_t *hpg;
- return (xor_sum.as_u64[0] == prefix->fp_addr.ip6.as_u64[0]) &&
- (xor_sum.as_u64[1] == prefix->fp_addr.ip6.as_u64[1]);
-}
+ hpg = hicnpg_server_get (hicnpg_server_i);
-/*
- * Return 0,1,2.
- * 0 matches
- * 1 does not match and the prefix is ip4
- * 2 does not match and the prefix is ip6
- */
-static_always_inline u32
-match_data (vlib_buffer_t *b, fib_prefix_t *prefix)
-{
- u8 *ptr = vlib_buffer_get_current (b);
- u8 v = *ptr & 0xf0;
- u32 next = 0;
+ // FIXME
+ s = format (s, "dpo-hicnpg-server:[%d]: ip-fib-index:%d ", hicnpg_server_i,
+ hpg->fib_index);
- if (PREDICT_TRUE (v == 0x40 && ip46_address_is_ip4 (&prefix->fp_addr)))
+ if (FIB_PROTOCOL_IP4 == hpg->prefix.fp_proto)
{
- if (!match_ip4_name ((u32 *) &(ptr[12]), prefix))
- next = 1;
+ s = format (s, "protocol:FIB_PROTOCOL_IP4 prefix: %U",
+ format_fib_prefix, &hpg->prefix);
}
- else if (PREDICT_TRUE (v == 0x60 && !ip46_address_is_ip4 (&prefix->fp_addr)))
+ else
{
- if (!match_ip6_name (&(ptr[8]), prefix))
- next = 2;
+ s = format (s, "protocol:FIB_PROTOCOL_IP6 prefix: %U",
+ format_fib_prefix, &hpg->prefix);
}
- return next;
-}
-
-/*
- * Return 0,1,2.
- * 0 matches
- * 1 does not match and the prefix is ip4
- * 2 does not match and the prefix is ip6
- */
-static_always_inline u32
-match_interest (vlib_buffer_t *b, fib_prefix_t *prefix)
-{
- u8 *ptr = vlib_buffer_get_current (b);
- u8 v = *ptr & 0xf0;
- u32 next = 0;
+#if 0
+ vlib_get_combined_counter (&(udp_encap_counters), uei, &to);
+ s = format (s, " to:[%Ld:%Ld]]", to.packets, to.bytes);s
+#endif
- if (PREDICT_TRUE (v == 0x40 && ip46_address_is_ip4 (&prefix->fp_addr)))
+ if (details)
{
- if (!match_ip4_name ((u32 *) &(ptr[16]), prefix))
- next = 1;
- }
- else if (PREDICT_TRUE (v == 0x60 && !ip46_address_is_ip4 (&prefix->fp_addr)))
- {
- if (!match_ip6_name (&(ptr[24]), prefix))
- next = 2;
+ s = format (s, " locks:%d", hpg->fib_node.fn_locks);
+ // s = format (s, "\n%UStacked on:", format_white_space, indent +
+ // 1); s = format (s, "\n%U%U", format_white_space, indent + 2,
+ // format_dpo_id,
+ // &hpg->dpo, indent + 3);
}
- return next;
+ return s;
}
-/*
- * Node function for the icn packet-generator client. The goal here is to
- * manipulate/tweak a stream of packets that have been injected by the vpp
- * packet generator to generate icn request traffic.
- */
-static uword
-hicnpg_client_data_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node,
- vlib_frame_t *frame)
+static u8 *
+format_hicnpg_server_dpo (u8 *s, va_list *args)
{
- u32 n_left_from, *from, *to_next;
- hicnpg_data_next_t next_index;
- u32 pkts_processed = 0;
- u32 content_msgs_received = 0;
- u32 bi0, bi1;
- vlib_buffer_t *b0, *b1;
- u8 pkt_type0 = 0, pkt_type1 = 0;
- u16 msg_type0 = 1, msg_type1 = 1;
- hicnpg_main_t *hpgm = &hicnpg_main;
-
- 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);
-
- while (n_left_from >= 4 && n_left_to_next >= 2)
- {
- u32 next0 = HICNPG_DATA_NEXT_DROP;
- u32 next1 = HICNPG_DATA_NEXT_DROP;
- u32 sw_if_index0, sw_if_index1;
-
- /* 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), STORE);
- CLIB_PREFETCH (p3->data, (2 * CLIB_CACHE_LINE_BYTES), STORE);
- }
-
- /*
- * 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);
-
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
-
- next0 =
- HICNPG_DATA_NEXT_DROP + match_data (b0, hpgm->pgen_clt_hicn_name);
- next1 =
- HICNPG_DATA_NEXT_DROP + match_data (b1, hpgm->pgen_clt_hicn_name);
-
- if (PREDICT_FALSE (vnet_get_feature_count (
- vnet_buffer (b0)->feature_arc_index,
- vnet_buffer (b0)->sw_if_index[VLIB_RX]) > 1))
- vnet_feature_next (&next0, b0);
-
- if (PREDICT_FALSE (vnet_get_feature_count (
- vnet_buffer (b1)->feature_arc_index,
- vnet_buffer (b1)->sw_if_index[VLIB_RX]) > 1))
- vnet_feature_next (&next1, b1);
+ index_t hpg_server_i = va_arg (*args, index_t);
+ u32 indent = va_arg (*args, u32);
- if (next0 == HICNPG_DATA_NEXT_DROP)
- {
- /* Increment a counter */
- content_msgs_received++;
- }
-
- if (next1 == HICNPG_DATA_NEXT_DROP)
- {
- /* Increment a counter */
- content_msgs_received++;
- }
-
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- icnpg_data_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->pkt_type = pkt_type0;
- t->msg_type = msg_type0;
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- icnpg_data_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->pkt_type = pkt_type1;
- t->msg_type = msg_type1;
- t->sw_if_index = sw_if_index1;
- t->next_index = next1;
- }
- }
-
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next,
- n_left_to_next, bi0, bi1, next0,
- next1);
- pkts_processed += 2;
- }
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 next0 = HICNPG_DATA_NEXT_DROP;
- u32 sw_if_index0;
-
- /* 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;
-
- b0 = vlib_get_buffer (vm, bi0);
-
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
-
- next0 =
- HICNPG_DATA_NEXT_DROP + match_data (b0, hpgm->pgen_clt_hicn_name);
-
- if (PREDICT_FALSE (vnet_get_feature_count (
- vnet_buffer (b0)->feature_arc_index,
- vnet_buffer (b0)->sw_if_index[VLIB_RX]) > 1))
- vnet_feature_next (&next0, b0);
-
- if (next0 == HICNPG_DATA_NEXT_DROP)
- {
- /* Increment a counter */
- content_msgs_received++;
- }
-
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
- (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- icnpg_data_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->pkt_type = pkt_type0;
- t->msg_type = msg_type0;
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
-
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, bi0, next0);
-
- pkts_processed++;
- }
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
-
- vlib_node_increment_counter (vm, hicn_pg_data_node.index,
- HICNPG_ERROR_PROCESSED, pkts_processed);
- vlib_node_increment_counter (vm, hicn_pg_data_node.index,
- HICNPG_ERROR_CONTENT_MSGS_RECEIVED,
- content_msgs_received);
- return (frame->n_vectors);
+ return (format (s, "%U", format_hicnpg_server_i, hpg_server_i, indent, 1));
}
-VLIB_REGISTER_NODE(hicn_pg_data_node) =
-{
- .function = hicnpg_client_data_node_fn,
- .name = "hicnpg-data",
- .vector_size = sizeof(u32),
- .format_trace = format_hicnpg_data_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN(hicnpg_error_strings),
- .error_strings = hicnpg_error_strings,
- .n_next_nodes = HICNPG_DATA_N_NEXT,
- .next_nodes =
- {
- [HICNPG_DATA_NEXT_DROP] = "error-drop",
- [HICNPG_DATA_NEXT_LOOKUP4] = "ip4-lookup",
- [HICNPG_DATA_NEXT_LOOKUP6] = "ip6-lookup",
- },
+/*
+ * Virtual function table registered by hicn pg server
+ * for participation in the FIB object graph.
+ */
+const static fib_node_vft_t hicnpg_server_fib_vft = {
+ .fnv_get = hicnpg_server_fib_node_get,
+ .fnv_last_lock = hicnpg_server_fib_last_lock_gone,
+ .fnv_back_walk = hicnpg_server_fib_back_walk,
};
-VNET_FEATURE_INIT (hicn_data_input_ip4_arc, static) = {
- .arc_name = "ip4-unicast",
- .node_name = "hicnpg-data",
- .runs_before = VNET_FEATURES ("ip4-inacl"),
+const static dpo_vft_t hicnpg_server_dpo_vft = {
+ .dv_lock = hicnpg_server_dpo_lock,
+ .dv_unlock = hicnpg_server_dpo_unlock,
+ .dv_format = format_hicnpg_server_dpo,
};
-VNET_FEATURE_INIT (hicn_data_input_ip6_arc, static) = {
- .arc_name = "ip6-unicast",
- .node_name = "hicnpg-data",
- .runs_before = VNET_FEATURES ("ip6-inacl"),
+const static char *const hicnpg_server_ip4_nodes[] = {
+ "hicnpg-server-4",
+ NULL,
};
-/*
- * End of packet-generator client node
- */
-
-/*
- * Beginning of packet-generation server node
- */
-
-/* Registration struct for a graph node */
-vlib_node_registration_t hicn_pg_server_node;
-
-/* Stats, which end up called "error" even though they aren't... */
-#define foreach_icnpg_server_error \
- _ (PROCESSED, "hICN PG Server packets processed") \
- _ (DROPPED, "hICN PG Server packets dropped")
-
-typedef enum
-{
-#define _(sym, str) HICNPG_SERVER_ERROR_##sym,
- foreach_icnpg_server_error
-#undef _
- HICNPG_SERVER_N_ERROR,
-} icnpg_server_error_t;
-
-static char *icnpg_server_error_strings[] = {
-#define _(sym, string) string,
- foreach_icnpg_server_error
-#undef _
+const static char *const hicnpg_server_ip6_nodes[] = {
+ "hicnpg-server-6",
+ NULL,
};
-/*
- * Next graph nodes, which reference the list in the actual registration
- * block below
- */
-typedef enum
-{
- HICNPG_SERVER_NEXT_V4_LOOKUP,
- HICNPG_SERVER_NEXT_V6_LOOKUP,
- HICNPG_SERVER_NEXT_DROP,
- HICNPG_SERVER_N_NEXT,
-} icnpg_server_next_t;
-
-/* Trace context struct */
-typedef struct
-{
- u32 next_index;
- u32 sw_if_index;
- u8 pkt_type;
- u16 msg_type;
-} hicnpg_server_trace_t;
-
-/* packet trace format function */
-static u8 *
-format_icnpg_server_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 *);
- hicnpg_server_trace_t *t = va_arg (*args, hicnpg_server_trace_t *);
-
- s = format (
- s, "HICNPG SERVER: pkt: %d, msg %d, sw_if_index %d, next index %d",
- (int) t->pkt_type, (int) t->msg_type, t->sw_if_index, t->next_index);
- return (s);
-}
+const static char *const *const hicnpg_server_nodes[DPO_PROTO_NUM] = {
+ [DPO_PROTO_IP4] = hicnpg_server_ip4_nodes,
+ [DPO_PROTO_IP6] = hicnpg_server_ip6_nodes
+};
-/*
- * Node function for the icn packet-generator server.
- */
-static uword
-hicnpg_node_server_fn (vlib_main_t *vm, vlib_node_runtime_t *node,
- vlib_frame_t *frame)
+clib_error_t *
+hicnpg_server_add_and_lock (fib_prefix_t *prefix, u32 *hicnpg_server_index,
+ ip46_address_t *locator, size_t payload_size)
{
- u32 n_left_from, *from, *to_next;
- icnpg_server_next_t next_index;
- u32 pkts_processed = 0, pkts_dropped = 0;
- u32 bi0, bi1;
- vlib_buffer_t *b0, *b1;
- u8 pkt_type0 = 0, pkt_type1 = 0;
- u16 msg_type0 = 0, msg_type1 = 0;
- hicn_header_t *hicn0 = NULL, *hicn1 = NULL;
- hicn_name_t name0, name1;
- u16 namelen0, namelen1;
-
- hicnpg_server_main_t *hpgsm = &hicnpg_server_main;
+ hicnpg_server_t *hpg;
+ index_t hpgi;
+ u32 fib_index;
+ fib_node_index_t fib_entry_index;
+ u32 buffer_index;
+ vlib_buffer_t *rb = NULL;
- from = vlib_frame_vector_args (frame);
+ // Retrieve hicn fib table
+ fib_index =
+ fib_table_find_or_create_and_lock (prefix->fp_proto, 0, hicn_fib_src);
- n_left_from = frame->n_vectors;
- next_index = node->cached_next_index;
+ // Check the prefix we are adding is not already in the table
+ fib_entry_index = fib_table_lookup_exact_match (fib_index, prefix);
- while (n_left_from > 0)
+ if (fib_entry_index != FIB_NODE_INDEX_INVALID)
{
- u32 n_left_to_next;
-
- 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 = HICNPG_SERVER_NEXT_DROP;
- u32 next1 = HICNPG_SERVER_NEXT_DROP;
- u8 isv6_0 = 0;
- u8 isv6_1 = 0;
- u32 sw_if_index0, sw_if_index1;
-
- /* 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), STORE);
- CLIB_PREFETCH (p3->data, (2 * CLIB_CACHE_LINE_BYTES), STORE);
- }
-
- /*
- * 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);
-
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
-
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0;
- vnet_buffer (b1)->sw_if_index[VLIB_TX] = ~0;
-
- u32 match0 = match_interest (b0, hpgsm->pgen_srv_hicn_name);
- u32 match1 = match_interest (b1, hpgsm->pgen_srv_hicn_name);
-
- if (match0)
- {
- next0 = match0 - 1;
- }
- else if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0,
- &isv6_0) == HICN_ERROR_NONE)
- {
- /* this node grabs only interests */
- vlib_buffer_t *rb = NULL;
- rb = vlib_get_buffer (vm, hpgsm->pgen_svr_buffer_idx);
-
- isv6_0 ? convert_interest_to_data_v6 (vm, b0, rb, bi0) :
- convert_interest_to_data_v4 (vm, b0, rb, bi0);
-
- next0 = isv6_0 ? HICNPG_SERVER_NEXT_V6_LOOKUP :
- HICNPG_SERVER_NEXT_V4_LOOKUP;
- }
-
- if (match1)
- {
- next1 = match1 - 1;
- }
- else if (hicn_interest_parse_pkt (b1, &name1, &namelen1, &hicn1,
- &isv6_1) == HICN_ERROR_NONE)
- {
- /* this node grabs only interests */
- vlib_buffer_t *rb = NULL;
- rb = vlib_get_buffer (vm, hpgsm->pgen_svr_buffer_idx);
-
- isv6_1 ? convert_interest_to_data_v6 (vm, b1, rb, bi1) :
- convert_interest_to_data_v4 (vm, b1, rb, bi1);
-
- next1 = isv6_1 ? HICNPG_SERVER_NEXT_V6_LOOKUP :
- HICNPG_SERVER_NEXT_V4_LOOKUP;
- }
- pkts_processed += 2;
-
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- hicnpg_server_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->pkt_type = pkt_type0;
- t->msg_type = msg_type0;
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- hicnpg_server_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->pkt_type = pkt_type1;
- t->msg_type = msg_type1;
- t->sw_if_index = sw_if_index1;
- t->next_index = next1;
- }
- }
- if (next0 == HICNPG_SERVER_NEXT_DROP)
- {
- pkts_dropped++;
- }
- if (next1 == HICNPG_SERVER_NEXT_DROP)
- {
- pkts_dropped++;
- }
- /*
- * 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 next0 = HICNPG_SERVER_NEXT_DROP;
- u32 sw_if_index0 = ~0;
- u8 isv6_0 = 0;
-
- /* 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;
-
- b0 = vlib_get_buffer (vm, bi0);
-
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0;
-
- u32 match0 = match_interest (b0, hpgsm->pgen_srv_hicn_name);
-
- if (match0)
- {
- next0 = match0 - 1;
- }
- else if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0,
- &isv6_0) == HICN_ERROR_NONE)
- {
- /* this node grabs only interests */
- vlib_buffer_t *rb = NULL;
- rb = vlib_get_buffer (vm, hpgsm->pgen_svr_buffer_idx);
-
- isv6_0 ? convert_interest_to_data_v6 (vm, b0, rb, bi0) :
- convert_interest_to_data_v4 (vm, b0, rb, bi0);
-
- next0 = isv6_0 ? HICNPG_SERVER_NEXT_V6_LOOKUP :
- HICNPG_SERVER_NEXT_V4_LOOKUP;
- }
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
- (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- hicnpg_server_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->pkt_type = pkt_type0;
- t->msg_type = msg_type0;
- t->sw_if_index = sw_if_index0;
- t->next_index = next0;
- }
- pkts_processed += 1;
-
- if (next0 == HICNPG_SERVER_NEXT_DROP)
- {
- pkts_dropped++;
- }
- /*
- * 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);
+ // Route already existing.
+ return clib_error_return (0, "Route exist already.");
}
- vlib_node_increment_counter (vm, hicn_pg_server_node.index,
- HICNPG_SERVER_ERROR_PROCESSED, pkts_processed);
- vlib_node_increment_counter (vm, hicn_pg_server_node.index,
- HICNPG_SERVER_ERROR_DROPPED, pkts_dropped);
+ // Allocate packet buffer
+ int n_buf = vlib_buffer_alloc (vlib_get_main (), &buffer_index, 1);
- return (frame->n_vectors);
-}
-
-void
-convert_interest_to_data_v4 (vlib_main_t *vm, vlib_buffer_t *b0,
- vlib_buffer_t *rb, u32 bi0)
-{
- hicn_header_t *h0 = vlib_buffer_get_current (b0);
-
- /* Get the packet length */
- u16 pkt_len = clib_net_to_host_u16 (h0->v4.ip.len);
-
- /*
- * Rule of thumb: We want the size of the IP packet to be <= 1500 bytes
- */
- u16 bytes_to_copy = rb->current_length;
- if ((bytes_to_copy + pkt_len) > 1500)
+ if (n_buf == 0)
{
- bytes_to_copy = 1500 - pkt_len;
+ return clib_error_return (0, "Impossible to allocate paylod buffer.");
}
- /* Add content to the data packet */
- vlib_buffer_add_data (vm, &bi0, rb->data, bytes_to_copy);
-
- b0 = vlib_get_buffer (vm, bi0);
- h0 = vlib_buffer_get_current (b0);
-
- ip4_address_t src_addr = h0->v4.ip.saddr;
- h0->v4.ip.saddr = h0->v4.ip.daddr;
- h0->v4.ip.daddr = src_addr;
-
- h0->v4.ip.len = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- h0->v4.ip.csum = ip4_header_checksum ((ip4_header_t *) &(h0->v4.ip));
- calculate_tcp_checksum_v4 (vm, b0);
+ // Initialize the buffer data with zeros
+ rb = vlib_get_buffer (vlib_get_main (), buffer_index);
+ memset (rb->data, 0, payload_size);
+ rb->current_length = payload_size;
+
+ // We can proceed. Get a new hicnpg_server_t
+ pool_get_aligned_zero (hicnpg_server_pool, hpg, 2 * CLIB_CACHE_LINE_BYTES);
+ hpgi = hpg - hicnpg_server_pool;
+
+ // Set DPO
+ dpo_set (
+ &hpg->dpo, hicnpg_server_dpo_type,
+ (ip46_address_is_ip4 (&prefix->fp_addr) ? DPO_PROTO_IP4 : DPO_PROTO_IP6),
+ hpgi);
+
+ // Add the route via the hicnpg_server_dpo_type. In this way packets will
+ // endup in the hicnpg_server node
+ CLIB_UNUSED (fib_node_index_t new_fib_node_index) =
+ fib_table_entry_special_dpo_add (
+ fib_index, prefix, hicn_fib_src,
+ (FIB_ENTRY_FLAG_EXCLUSIVE | FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT),
+ &hpg->dpo);
+
+#if 0
+ vlib_validate_combined_counter (&(udp_encap_counters), uei);
+ vlib_zero_combined_counter (&(udp_encap_counters), uei);
+#endif
+
+ // Init remaining struct fields
+ fib_node_init (&hpg->fib_node, hicnpg_server_fib_node_type);
+ fib_node_lock (&hpg->fib_node);
+ hpg->fib_index = fib_index;
+ hpg->prefix = *prefix;
+ hpg->buffer_index = buffer_index;
+ hpg->fib_entry_index = fib_entry_index;
+ hpg->hicn_locator = *locator;
+
+ // track the destination address
+ // hpg->fib_entry_index =
+ // fib_entry_track (fib_index, &hpg->prefix,
+ // hicnpg_server_fib_node_type, hpgi, &hpg->fib_sibling);
+ // hicnpg_server_restack (hpg);
+
+ HICN_DEBUG ("Calling hicn enable for pg-server face");
+
+ hicn_face_id_t *vec_faces = NULL;
+ fib_node_index_t hicn_fib_node_index;
+ hicn_route_enable (prefix, &hicn_fib_node_index, &vec_faces);
+ if (vec_faces != NULL)
+ vec_free (vec_faces);
+
+ // Return the index of the hicnpg_server_t
+ *hicnpg_server_index = hpgi;
+
+ return NULL;
}
-void
-convert_interest_to_data_v6 (vlib_main_t *vm, vlib_buffer_t *b0,
- vlib_buffer_t *rb, u32 bi0)
+clib_error_t *
+hicn_pg_init (vlib_main_t *vm)
{
- hicn_header_t *h0 = vlib_buffer_get_current (b0);
-
- /* Get the packet length */
- uint16_t pkt_len =
- clib_net_to_host_u16 (h0->v6.ip.len) + sizeof (ip6_header_t);
-
- /*
- * Figure out how many bytes we can add to the content
- *
- * Rule of thumb: We want the size of the IP packet to be <= 1400 bytes
- */
- u16 bytes_to_copy = rb->current_length;
- if ((bytes_to_copy + pkt_len) > 1500)
- {
- bytes_to_copy = 1500 - pkt_len;
- }
- /* Add content to the data packet */
- vlib_buffer_add_data (vm, &bi0, rb->data, bytes_to_copy);
-
- b0 = vlib_get_buffer (vm, bi0);
+ hicnpg_server_fib_node_type = fib_node_register_new_type (
+ "hicnpg_server_fib_node", &hicnpg_server_fib_vft);
- h0 = vlib_buffer_get_current (b0);
- ip6_address_t src_addr = h0->v6.ip.saddr;
- h0->v6.ip.saddr = h0->v6.ip.daddr;
- h0->v6.ip.daddr = src_addr;
+ hicnpg_server_dpo_type =
+ dpo_register_new_type (&hicnpg_server_dpo_vft, hicnpg_server_nodes);
- h0->v6.ip.len = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (ip6_header_t));
- h0->v6.tcp.data_offset_and_reserved |= 0x0f;
- h0->v6.tcp.urg_ptr = htons (0xffff);
-
- calculate_tcp_checksum_v6 (vm, b0);
+ return NULL;
}
-VLIB_REGISTER_NODE(hicn_pg_server_node) =
-{
- .function = hicnpg_node_server_fn,
- .name = "hicnpg-server",
- .vector_size = sizeof(u32),
- .format_trace = format_icnpg_server_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN(icnpg_server_error_strings),
- .error_strings = icnpg_server_error_strings,
- .n_next_nodes = HICNPG_SERVER_N_NEXT,
- /* edit / add dispositions here */
- .next_nodes =
- {
- [HICNPG_SERVER_NEXT_V4_LOOKUP] = "ip4-lookup",
- [HICNPG_SERVER_NEXT_V6_LOOKUP] = "ip6-lookup",
- [HICNPG_SERVER_NEXT_DROP] = "error-drop",
- },
-};
-
-VNET_FEATURE_INIT (hicn_pg_server_ip6, static) = {
- .arc_name = "ip6-unicast",
- .node_name = "hicnpg-server",
- .runs_before = VNET_FEATURES ("ip6-inacl"),
-};
-
-VNET_FEATURE_INIT (hicn_pg_server_ip4, static) = {
- .arc_name = "ip4-unicast",
- .node_name = "hicnpg-server",
- .runs_before = VNET_FEATURES ("ip4-inacl"),
-};
-
-/*
- * End of packet-generator server node
- */
-
/*
* fd.io coding-style-patch-verification: ON
*