* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
-#include <vnet/ip/ip.h>
+#include <vnet/ip/ip6_input.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/ppp/ppp.h>
#include <vnet/hdlc/hdlc.h>
return s;
}
-typedef enum
-{
- IP6_INPUT_NEXT_DROP,
- IP6_INPUT_NEXT_LOOKUP,
- IP6_INPUT_NEXT_LOOKUP_MULTICAST,
- IP6_INPUT_NEXT_ICMP_ERROR,
- IP6_INPUT_N_NEXT,
-} ip6_input_next_t;
-
/* Validate IP v6 packets and pass them either to forwarding code
or drop exception packets. */
-static uword
-ip6_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
+VLIB_NODE_FN (ip6_input_node) (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
vnet_main_t *vnm = vnet_get_main ();
ip6_main_t *im = &ip6_main;
vlib_node_runtime_t *error_node =
vlib_node_get_runtime (vm, ip6_input_node.index);
vlib_simple_counter_main_t *cm;
- u32 cpu_index = os_get_cpu_number ();
+ u32 thread_index = vm->thread_index;
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
ip6_header_t *ip0, *ip1;
u32 pi0, sw_if_index0, next0 = 0;
u32 pi1, sw_if_index1, next1 = 0;
- u8 error0, error1, arc0, arc1;
+ u8 arc0, arc1;
/* Prefetch next iteration. */
{
vnet_feature_arc_start (arc0, sw_if_index0, &next0, p0);
vnet_feature_arc_start (arc1, sw_if_index1, &next1, p1);
- vlib_increment_simple_counter (cm, cpu_index, sw_if_index0, 1);
- vlib_increment_simple_counter (cm, cpu_index, sw_if_index1, 1);
-
- error0 = error1 = IP6_ERROR_NONE;
-
- /* Version != 6? Drop it. */
- error0 =
- (clib_net_to_host_u32
- (ip0->ip_version_traffic_class_and_flow_label) >> 28) !=
- 6 ? IP6_ERROR_VERSION : error0;
- error1 =
- (clib_net_to_host_u32
- (ip1->ip_version_traffic_class_and_flow_label) >> 28) !=
- 6 ? IP6_ERROR_VERSION : error1;
-
- /* hop limit < 1? Drop it. for link-local broadcast packets,
- * like dhcpv6 packets from client has hop-limit 1, which should not
- * be dropped.
- */
- error0 = ip0->hop_limit < 1 ? IP6_ERROR_TIME_EXPIRED : error0;
- error1 = ip1->hop_limit < 1 ? IP6_ERROR_TIME_EXPIRED : error1;
-
- /* L2 length must be at least minimal IP header. */
- error0 =
- p0->current_length <
- sizeof (ip0[0]) ? IP6_ERROR_TOO_SHORT : error0;
- error1 =
- p1->current_length <
- sizeof (ip1[0]) ? IP6_ERROR_TOO_SHORT : error1;
-
- if (PREDICT_FALSE (error0 != IP6_ERROR_NONE))
- {
- if (error0 == IP6_ERROR_TIME_EXPIRED)
- {
- icmp6_error_set_vnet_buffer (p0, ICMP6_time_exceeded,
- ICMP6_time_exceeded_ttl_exceeded_in_transit,
- 0);
- next0 = IP6_INPUT_NEXT_ICMP_ERROR;
- }
- else
- {
- next0 = IP6_INPUT_NEXT_DROP;
- }
- }
- if (PREDICT_FALSE (error1 != IP6_ERROR_NONE))
- {
- if (error1 == IP6_ERROR_TIME_EXPIRED)
- {
- icmp6_error_set_vnet_buffer (p1, ICMP6_time_exceeded,
- ICMP6_time_exceeded_ttl_exceeded_in_transit,
- 0);
- next1 = IP6_INPUT_NEXT_ICMP_ERROR;
- }
- else
- {
- next1 = IP6_INPUT_NEXT_DROP;
- }
- }
-
- p0->error = error_node->errors[error0];
- p1->error = error_node->errors[error1];
+ vlib_increment_simple_counter (cm, thread_index, sw_if_index0, 1);
+ vlib_increment_simple_counter (cm, thread_index, sw_if_index1, 1);
+ ip6_input_check_x2 (vm, error_node,
+ p0, p1, ip0, ip1, &next0, &next1);
vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
to_next, n_left_to_next,
vlib_buffer_t *p0;
ip6_header_t *ip0;
u32 pi0, sw_if_index0, next0 = 0;
- u8 error0, arc0;
+ u8 arc0;
pi0 = from[0];
to_next[0] = pi0;
vnet_buffer (p0)->ip.adj_index[VLIB_RX] = ~0;
vnet_feature_arc_start (arc0, sw_if_index0, &next0, p0);
- vlib_increment_simple_counter (cm, cpu_index, sw_if_index0, 1);
- error0 = IP6_ERROR_NONE;
-
- /* Version != 6? Drop it. */
- error0 =
- (clib_net_to_host_u32
- (ip0->ip_version_traffic_class_and_flow_label) >> 28) !=
- 6 ? IP6_ERROR_VERSION : error0;
-
- /* hop limit < 1? Drop it. for link-local broadcast packets,
- * like dhcpv6 packets from client has hop-limit 1, which should not
- * be dropped.
- */
- error0 = ip0->hop_limit < 1 ? IP6_ERROR_TIME_EXPIRED : error0;
-
- /* L2 length must be at least minimal IP header. */
- error0 =
- p0->current_length <
- sizeof (ip0[0]) ? IP6_ERROR_TOO_SHORT : error0;
-
- if (PREDICT_FALSE (error0 != IP6_ERROR_NONE))
- {
- if (error0 == IP6_ERROR_TIME_EXPIRED)
- {
- icmp6_error_set_vnet_buffer (p0, ICMP6_time_exceeded,
- ICMP6_time_exceeded_ttl_exceeded_in_transit,
- 0);
- next0 = IP6_INPUT_NEXT_ICMP_ERROR;
- }
- else
- {
- next0 = IP6_INPUT_NEXT_DROP;
- }
- }
- p0->error = error_node->errors[error0];
+ vlib_increment_simple_counter (cm, thread_index, sw_if_index0, 1);
+ ip6_input_check_x1 (vm, error_node, p0, ip0, &next0);
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
return frame->n_vectors;
}
-static char *ip6_error_strings[] = {
+#ifndef CLIB_MARCH_VARIANT
+char *ip6_error_strings[] = {
#define _(sym,string) string,
foreach_ip6_error
#undef _
};
+#endif /* CLIB_MARCH_VARIANT */
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_input_node) = {
- .function = ip6_input,
.name = "ip6-input",
.vector_size = sizeof (u32),
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (ip6_input_node, ip6_input)
- static clib_error_t *ip6_init (vlib_main_t * vm)
+static u8 *
+format_ipv6_fragmentation (u8 * s, va_list * args)
+{
+ ip6_frag_hdr_t *h = va_arg (*args, ip6_frag_hdr_t *);
+ u32 max_header_bytes = va_arg (*args, u32);
+ u32 header_bytes;
+
+ header_bytes = sizeof (h[0]);
+ if (max_header_bytes != 0 && header_bytes > max_header_bytes)
+ return format (s, "ipv6 frag header truncated");
+
+ s =
+ format (s,
+ "fragmentation header: next_hdr: %u, rsv: %u, frag_offset_and_more: %u, id: %u",
+ h->next_hdr, h->rsv, h->fragment_offset_and_more,
+ clib_net_to_host_u32 (h->identification));
+ return s;
+}
+
+static clib_error_t *
+ip6_init (vlib_main_t * vm)
{
ethernet_register_input_type (vm, ETHERNET_TYPE_IP6, ip6_input_node.index);
ppp_register_input_protocol (vm, PPP_PROTOCOL_ip6, ip6_input_node.index);
/* Default hop limit for packets we generate. */
ip6_main.host_config.ttl = 64;
+
+ uword *u = hash_get (ip_main.protocol_info_by_name, "IPV6_FRAGMENTATION");
+ if (u)
+ {
+ ip_protocol_info_t *info =
+ vec_elt_at_index (ip_main.protocol_infos, *u);
+ ASSERT (NULL == info->format_header);
+ info->format_header = format_ipv6_fragmentation;
+ }
return /* no error */ 0;
}
VLIB_INIT_FUNCTION (ip6_init);
+static clib_error_t *
+ip6_main_loop_enter (vlib_main_t * vm)
+{
+ ip6_main_t *im = &ip6_main;
+ vlib_thread_main_t *tm = &vlib_thread_main;
+
+ throttle_init (&im->nd_throttle, tm->n_vlib_mains, 1e-3);
+
+ return 0;
+}
+
+VLIB_MAIN_LOOP_ENTER_FUNCTION (ip6_main_loop_enter);
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff