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authorPierre Pfister <ppfister@cisco.com>2017-09-18 11:40:32 +0200
committerDave Barach <openvpp@barachs.net>2017-09-20 11:49:08 +0000
commit1bfd37295f5cd332b7326923f1fbd5e0415829cd (patch)
tree9f4b3b8136acac3fcb84f9d38f289d72b1d93053 /src/vnet/ip/ip6_forward.c
parent4619e19cf0e10b9f69eee535c91053930ec14a74 (diff)
Add ip6-local feature arc
ip4-local feature arc existed but not ip6-local one. This patch also adds node name to the 'show ip local' command and fixes a minor include issue in vnet/ip/ip4.h file. Change-Id: I9bb8a7159917d58f89afcce974680de20d946a70 Signed-off-by: Pierre Pfister <ppfister@cisco.com>
Diffstat (limited to 'src/vnet/ip/ip6_forward.c')
-rw-r--r--src/vnet/ip/ip6_forward.c97
1 files changed, 91 insertions, 6 deletions
diff --git a/src/vnet/ip/ip6_forward.c b/src/vnet/ip/ip6_forward.c
index 1002f6b6dd9..bb4893ad19f 100644
--- a/src/vnet/ip/ip6_forward.c
+++ b/src/vnet/ip/ip6_forward.c
@@ -1337,8 +1337,17 @@ ip6_next_proto_is_tcp_udp (vlib_buffer_t * p0, ip6_header_t * ip0,
return proto0;
}
+/* *INDENT-OFF* */
+VNET_FEATURE_ARC_INIT (ip6_local) =
+{
+ .arc_name = "ip6-local",
+ .start_nodes = VNET_FEATURES ("ip6-local"),
+};
+/* *INDENT-ON* */
+
static uword
-ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
+ip6_local_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame, int head_of_feature_arc)
{
ip6_main_t *im = &ip6_main;
ip_lookup_main_t *lm = &im->lookup_main;
@@ -1346,6 +1355,7 @@ ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
u32 *from, *to_next, n_left_from, n_left_to_next;
vlib_node_runtime_t *error_node =
vlib_node_get_runtime (vm, ip6_input_node.index);
+ u8 arc_index = vnet_feat_arc_ip6_local.feature_arc_index;
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
@@ -1377,21 +1387,23 @@ ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
to_next += 2;
n_left_to_next -= 2;
+ error0 = error1 = IP6_ERROR_UNKNOWN_PROTOCOL;
+
p0 = vlib_get_buffer (vm, pi0);
p1 = vlib_get_buffer (vm, pi1);
ip0 = vlib_buffer_get_current (p0);
ip1 = vlib_buffer_get_current (p1);
+ if (head_of_feature_arc == 0)
+ goto skip_checks;
+
vnet_buffer (p0)->l3_hdr_offset = p0->current_data;
vnet_buffer (p1)->l3_hdr_offset = p1->current_data;
type0 = lm->builtin_protocol_by_ip_protocol[ip0->protocol];
type1 = lm->builtin_protocol_by_ip_protocol[ip1->protocol];
- next0 = lm->local_next_by_ip_protocol[ip0->protocol];
- next1 = lm->local_next_by_ip_protocol[ip1->protocol];
-
flags0 = p0->flags;
flags1 = p1->flags;
@@ -1485,6 +1497,11 @@ ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
? IP6_ERROR_SRC_LOOKUP_MISS : error1);
}
+ skip_checks:
+
+ next0 = lm->local_next_by_ip_protocol[ip0->protocol];
+ next1 = lm->local_next_by_ip_protocol[ip1->protocol];
+
next0 =
error0 != IP6_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0;
next1 =
@@ -1493,6 +1510,18 @@ ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
p0->error = error_node->errors[error0];
p1->error = error_node->errors[error1];
+ if (head_of_feature_arc)
+ {
+ if (PREDICT_TRUE (error0 == (u8) IP6_ERROR_UNKNOWN_PROTOCOL))
+ vnet_feature_arc_start (arc_index,
+ vnet_buffer (p0)->sw_if_index
+ [VLIB_RX], &next0, p0);
+ if (PREDICT_TRUE (error1 == (u8) IP6_ERROR_UNKNOWN_PROTOCOL))
+ vnet_feature_arc_start (arc_index,
+ vnet_buffer (p1)->sw_if_index
+ [VLIB_RX], &next1, p1);
+ }
+
vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
to_next, n_left_to_next,
pi0, pi1, next0, next1);
@@ -1515,12 +1544,17 @@ ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
to_next += 1;
n_left_to_next -= 1;
+ error0 = IP6_ERROR_UNKNOWN_PROTOCOL;
+
p0 = vlib_get_buffer (vm, pi0);
ip0 = vlib_buffer_get_current (p0);
+
+ if (head_of_feature_arc == 0)
+ goto skip_check;
+
vnet_buffer (p0)->l3_hdr_offset = p0->current_data;
type0 = lm->builtin_protocol_by_ip_protocol[ip0->protocol];
- next0 = lm->local_next_by_ip_protocol[ip0->protocol];
flags0 = p0->flags;
is_tcp_udp0 = ip6_next_proto_is_tcp_udp (p0, ip0, &udp_offset0);
good_l4_csum0 = (flags0 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;
@@ -1573,10 +1607,21 @@ ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
? IP6_ERROR_SRC_LOOKUP_MISS : error0);
}
+ skip_check:
+
+ next0 = lm->local_next_by_ip_protocol[ip0->protocol];
next0 =
error0 != IP6_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0;
p0->error = error_node->errors[error0];
+ if (head_of_feature_arc)
+ {
+ if (PREDICT_TRUE (error0 == (u8) IP6_ERROR_UNKNOWN_PROTOCOL))
+ vnet_feature_arc_start (arc_index,
+ vnet_buffer (p0)->sw_if_index
+ [VLIB_RX], &next0, p0);
+ }
+
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
pi0, next0);
@@ -1588,6 +1633,12 @@ ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
return frame->n_vectors;
}
+static uword
+ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return ip6_local_inline (vm, node, frame, 1 /* head of feature arc */ );
+}
+
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_local_node, static) =
{
@@ -1608,6 +1659,33 @@ VLIB_REGISTER_NODE (ip6_local_node, static) =
VLIB_NODE_FUNCTION_MULTIARCH (ip6_local_node, ip6_local);
+
+static uword
+ip6_local_end_of_arc (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return ip6_local_inline (vm, node, frame, 0 /* head of feature arc */ );
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip6_local_end_of_arc_node,static) = {
+ .function = ip6_local_end_of_arc,
+ .name = "ip6-local-end-of-arc",
+ .vector_size = sizeof (u32),
+
+ .format_trace = format_ip6_forward_next_trace,
+ .sibling_of = "ip6-local",
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_local_end_of_arc_node, ip6_local_end_of_arc)
+
+VNET_FEATURE_INIT (ip6_local_end_of_arc, static) = {
+ .arc_name = "ip6-local",
+ .node_name = "ip6-local-end-of-arc",
+ .runs_before = 0, /* not before any other features */
+};
+/* *INDENT-ON* */
+
void
ip6_register_protocol (u32 protocol, u32 node_index)
{
@@ -3271,7 +3349,14 @@ show_ip6_local_command_fn (vlib_main_t * vm,
for (i = 0; i < ARRAY_LEN (lm->local_next_by_ip_protocol); i++)
{
if (lm->local_next_by_ip_protocol[i] != IP_LOCAL_NEXT_PUNT)
- vlib_cli_output (vm, "%d", i);
+ {
+
+ u32 node_index = vlib_get_node (vm,
+ ip6_local_node.index)->
+ next_nodes[lm->local_next_by_ip_protocol[i]];
+ vlib_cli_output (vm, "%d: %U", i, format_vlib_node_name, vm,
+ node_index);
+ }
}
return 0;
}