#include <vnet/vnet.h>
#include <vnet/ip/icmp46_packet.h>
+#include <vnet/ethernet/packet.h>
+#include <vnet/ip/format.h>
#include <vnet/ip/ip4.h>
#include <vnet/ip/ip6.h>
#include <vnet/udp/udp_packet.h>
#include <vnet/feature/feature.h>
#include <vnet/classify/trace_classify.h>
+#include <vnet/interface_output.h>
typedef struct
{
}
return s;
}
+#endif /* CLIB_MARCH_VARIANT */
static void
vnet_interface_output_trace (vlib_main_t * vm,
}
}
-static_always_inline void
-calc_checksums (vlib_main_t * vm, vlib_buffer_t * b)
-{
- tcp_header_t *th;
- udp_header_t *uh;
-
- int is_ip4 = (b->flags & VNET_BUFFER_F_IS_IP4) != 0;
- int is_ip6 = (b->flags & VNET_BUFFER_F_IS_IP6) != 0;
-
- ASSERT (!(is_ip4 && is_ip6));
-
- th = (tcp_header_t *) (b->data + vnet_buffer (b)->l4_hdr_offset);
- uh = (udp_header_t *) (b->data + vnet_buffer (b)->l4_hdr_offset);
-
- if (is_ip4)
- {
- ip4_header_t *ip4;
-
- ip4 = (ip4_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset);
- if (b->flags & VNET_BUFFER_F_OFFLOAD_IP_CKSUM)
- ip4->checksum = ip4_header_checksum (ip4);
- if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM)
- {
- th->checksum = 0;
- th->checksum = ip4_tcp_udp_compute_checksum (vm, b, ip4);
- }
- else if (b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM)
- uh->checksum = ip4_tcp_udp_compute_checksum (vm, b, ip4);
- }
- else if (is_ip6)
- {
- int bogus;
- ip6_header_t *ip6;
-
- ip6 = (ip6_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset);
- if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM)
- {
- th->checksum = 0;
- th->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b, ip6, &bogus);
- }
- else if (b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM)
- {
- uh->checksum = 0;
- uh->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b, ip6, &bogus);
- }
- }
- b->flags &= ~VNET_BUFFER_F_OFFLOAD_TCP_CKSUM;
- b->flags &= ~VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
- b->flags &= ~VNET_BUFFER_F_OFFLOAD_IP_CKSUM;
-}
-
static_always_inline uword
vnet_interface_output_node_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
if (do_tx_offloads)
{
- if (or_flags &
- (VNET_BUFFER_F_OFFLOAD_TCP_CKSUM |
- VNET_BUFFER_F_OFFLOAD_UDP_CKSUM |
- VNET_BUFFER_F_OFFLOAD_IP_CKSUM))
+ if (or_flags & VNET_BUFFER_F_OFFLOAD)
{
- calc_checksums (vm, b[0]);
- calc_checksums (vm, b[1]);
- calc_checksums (vm, b[2]);
- calc_checksums (vm, b[3]);
+ if (b[0]->flags & VNET_BUFFER_F_OFFLOAD)
+ vnet_calc_checksums_inline
+ (vm, b[0],
+ b[0]->flags & VNET_BUFFER_F_IS_IP4,
+ b[0]->flags & VNET_BUFFER_F_IS_IP6);
+ if (b[1]->flags & VNET_BUFFER_F_OFFLOAD)
+ vnet_calc_checksums_inline
+ (vm, b[1],
+ b[1]->flags & VNET_BUFFER_F_IS_IP4,
+ b[1]->flags & VNET_BUFFER_F_IS_IP6);
+ if (b[2]->flags & VNET_BUFFER_F_OFFLOAD)
+ vnet_calc_checksums_inline
+ (vm, b[2],
+ b[2]->flags & VNET_BUFFER_F_IS_IP4,
+ b[2]->flags & VNET_BUFFER_F_IS_IP6);
+ if (b[3]->flags & VNET_BUFFER_F_OFFLOAD)
+ vnet_calc_checksums_inline
+ (vm, b[3],
+ b[3]->flags & VNET_BUFFER_F_IS_IP4,
+ b[3]->flags & VNET_BUFFER_F_IS_IP6);
}
}
b += 4;
if (do_tx_offloads)
{
- if (b[0]->flags &
- (VNET_BUFFER_F_OFFLOAD_TCP_CKSUM |
- VNET_BUFFER_F_OFFLOAD_UDP_CKSUM |
- VNET_BUFFER_F_OFFLOAD_IP_CKSUM))
- calc_checksums (vm, b[0]);
+ if (b[0]->flags & VNET_BUFFER_F_OFFLOAD)
+ vnet_calc_checksums_inline
+ (vm, b[0],
+ b[0]->flags & VNET_BUFFER_F_IS_IP4,
+ b[0]->flags & VNET_BUFFER_F_IS_IP6);
}
b += 1;
}
rt->sw_if_index, n_packets, n_bytes);
return n_buffers;
}
-#endif /* CLIB_MARCH_VARIANT */
static_always_inline void vnet_interface_pcap_tx_trace
(vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame,
}
}
-#ifndef CLIB_MARCH_VARIANT
+static vlib_node_function_t CLIB_MULTIARCH_FN (vnet_interface_output_node);
-uword
-vnet_interface_output_node (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+static uword
+CLIB_MULTIARCH_FN (vnet_interface_output_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
vnet_main_t *vnm = vnet_get_main ();
vnet_hw_interface_t *hi;
return vnet_interface_output_node_inline (vm, node, frame, vnm, hi,
/* do_tx_offloads */ 1);
}
+
+CLIB_MARCH_FN_REGISTRATION (vnet_interface_output_node);
+
+#ifndef CLIB_MARCH_VARIANT
+vlib_node_function_t *
+vnet_interface_output_node_get (void)
+{
+ return CLIB_MARCH_FN_POINTER (vnet_interface_output_node);
+}
#endif /* CLIB_MARCH_VARIANT */
/* Use buffer's sw_if_index[VNET_TX] to choose output interface. */
typedef struct vnet_error_trace_t_
{
u32 sw_if_index;
+ i8 details_valid;
+ u8 is_ip6;
+ u8 pad[2];
+ u16 mactype;
+ ip46_address_t src, dst;
} vnet_error_trace_t;
-
static u8 *
format_vnet_error_trace (u8 * s, va_list * va)
{
CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *);
vnet_error_trace_t *t = va_arg (*va, vnet_error_trace_t *);
- s = format (s, "rx:%U", format_vnet_sw_if_index_name,
- vnet_get_main (), t->sw_if_index);
-
+ /* Normal, non-catchup trace */
+ if (t->details_valid == 0)
+ {
+ s = format (s, "rx:%U", format_vnet_sw_if_index_name,
+ vnet_get_main (), t->sw_if_index);
+ }
+ else if (t->details_valid == 1)
+ {
+ /* The trace capture code didn't understant the mactype */
+ s = format (s, "mactype 0x%4x (not decoded)", t->mactype);
+ }
+ else if (t->details_valid == 2)
+ {
+ /* Dump the src/dst addresses */
+ if (t->is_ip6 == 0)
+ s = format (s, "IP4: %U -> %U",
+ format_ip4_address, &t->src.ip4,
+ format_ip4_address, &t->dst.ip4);
+ else
+ s = format (s, "IP6: %U -> %U",
+ format_ip6_address, &t->src.ip6,
+ format_ip6_address, &t->dst.ip6);
+ }
return s;
}
if (b0->flags & VLIB_BUFFER_IS_TRACED)
{
- t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0]));
+ t0 = vlib_add_trace (vm, node, b0,
+ STRUCT_OFFSET_OF (vnet_error_trace_t, pad));
t0->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ t0->details_valid = 0;
}
if (b1->flags & VLIB_BUFFER_IS_TRACED)
{
- t1 = vlib_add_trace (vm, node, b1, sizeof (t1[0]));
+ t1 = vlib_add_trace (vm, node, b1,
+ STRUCT_OFFSET_OF (vnet_error_trace_t, pad));
t1->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX];
+ t1->details_valid = 0;
}
buffers += 2;
n_left -= 2;
if (b0->flags & VLIB_BUFFER_IS_TRACED)
{
- t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0]));
+ t0 = vlib_add_trace (vm, node, b0,
+ STRUCT_OFFSET_OF (vnet_error_trace_t, pad));
t0->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ t0->details_valid = 0;
}
buffers += 1;
n_left -= 1;
VNET_ERROR_N_DISPOSITION,
} vnet_error_disposition_t;
+static void
+drop_catchup_trace (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_buffer_t * b)
+{
+ /* Can we safely rewind the buffer? If not, fagedaboudit */
+ if (b->flags & VNET_BUFFER_F_L2_HDR_OFFSET_VALID)
+ {
+ vnet_error_trace_t *t;
+ ip4_header_t *ip4;
+ ip6_header_t *ip6;
+ ethernet_header_t *eh;
+ i16 delta;
+
+ t = vlib_add_trace (vm, node, b, sizeof (*t));
+ delta = vnet_buffer (b)->l2_hdr_offset - b->current_data;
+ vlib_buffer_advance (b, delta);
+
+ eh = vlib_buffer_get_current (b);
+ /* Save mactype */
+ t->mactype = clib_net_to_host_u16 (eh->type);
+ t->details_valid = 1;
+ switch (t->mactype)
+ {
+ case ETHERNET_TYPE_IP4:
+ ip4 = (void *) (eh + 1);
+ t->details_valid = 2;
+ t->is_ip6 = 0;
+ t->src.ip4.as_u32 = ip4->src_address.as_u32;
+ t->dst.ip4.as_u32 = ip4->dst_address.as_u32;
+ break;
+
+ case ETHERNET_TYPE_IP6:
+ ip6 = (void *) (eh + 1);
+ t->details_valid = 2;
+ t->is_ip6 = 1;
+ clib_memcpy_fast (t->src.as_u8, ip6->src_address.as_u8,
+ sizeof (ip6_address_t));
+ clib_memcpy_fast (t->dst.as_u8, ip6->dst_address.as_u8,
+ sizeof (ip6_address_t));
+ break;
+
+ default:
+ /* Dunno, do nothing, leave details_valid alone */
+ break;
+ }
+ /* Restore current data (probably unnecessary) */
+ vlib_buffer_advance (b, -delta);
+ }
+}
+
static_always_inline uword
interface_drop_punt (vlib_main_t * vm,
vlib_node_runtime_t * node,
u32 sw_if_indices[VLIB_FRAME_SIZE];
vlib_simple_counter_main_t *cm;
u16 nexts[VLIB_FRAME_SIZE];
+ u32 n_trace;
vnet_main_t *vnm;
vnm = vnet_get_main ();
vlib_get_buffers (vm, from, bufs, n_left);
+ /* "trace add error-drop NNN?" */
+ if (PREDICT_FALSE ((n_trace = vlib_get_trace_count (vm, node))))
+ {
+ /* If pkts aren't otherwise traced... */
+ if ((node->flags & VLIB_NODE_FLAG_TRACE) == 0)
+ {
+ /* Trace them from here */
+ node->flags |= VLIB_NODE_FLAG_TRACE;
+ while (n_trace && n_left)
+ {
+ if (PREDICT_TRUE
+ (vlib_trace_buffer (vm, node, 0 /* next_index */ , b[0],
+ 0 /* follow chain */ )))
+ {
+ /*
+ * Here we have a wireshark dissector problem.
+ * Packets may be well-formed, or not. We
+ * must not blow chunks in any case.
+ *
+ * Try to produce trace records which will help
+ * folks understand what's going on.
+ */
+ drop_catchup_trace (vm, node, b[0]);
+ n_trace--;
+ }
+ n_left--;
+ b++;
+ }
+ }
+
+ vlib_set_trace_count (vm, node, n_trace);
+ b = bufs;
+ n_left = frame->n_vectors;
+ }
+
if (node->flags & VLIB_NODE_FLAG_TRACE)
interface_trace_buffers (vm, node, frame);
vlib_node_t *n;
/* Length of the error string */
int error_string_len =
- clib_strnlen (em->error_strings_heap[b0->error], 128);
+ clib_strnlen (em->counters_heap[b0->error].name, 128);
/* Dig up the drop node */
error_node_index = vm->node_main.node_by_error[b0->error];
": ", 2);
clib_memcpy_fast (last->data + last->current_data +
last->current_length + vec_len (n->name) +
- 2, em->error_strings_heap[b0->error],
+ 2, em->counters_heap[b0->error].name,
error_string_len);
last->current_length += drop_string_len;
b0->flags &= ~(VLIB_BUFFER_TOTAL_LENGTH_VALID);
.name = "error-drop",
.vector_size = sizeof (u32),
.format_trace = format_vnet_error_trace,
+ .flags = VLIB_NODE_FLAG_TRACE_SUPPORTED,
.n_next_nodes = 1,
.next_nodes = {
[0] = "drop",
.name = "error-punt",
.vector_size = sizeof (u32),
.format_trace = format_vnet_error_trace,
+ .flags = VLIB_NODE_FLAG_TRACE_SUPPORTED,
.n_next_nodes = 1,
.next_nodes = {
[0] = "punt",
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