* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+ /*
+ * To be honest, the packet generator needs an extreme
+ * makeover. Two key assumptions which drove the current implementation
+ * are no longer true. First, buffer managers implement a
+ * post-TX recycle list. Second, that packet generator performance
+ * is first-order important.
+ */
+
#include <vlib/vlib.h>
#include <vnet/pg/pg.h>
#include <vnet/vnet.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/feature/feature.h>
+#include <vnet/ip/ip4_packet.h>
+#include <vnet/ip/ip6_packet.h>
+#include <vnet/udp/udp_packet.h>
#include <vnet/devices/devices.h>
+#include <vnet/gso/gro_func.h>
static int
validate_buffer_data2 (vlib_buffer_t * b, pg_stream_t * s,
if (i >= n_bytes)
return 1;
- clib_warning ("buffer %U", format_vnet_buffer, b);
+ clib_warning ("buffer %U", format_vnet_buffer_no_chain, b);
clib_warning ("differ at index %d", i);
clib_warning ("is %U", format_hex_bytes, bd, n_bytes);
clib_warning ("mask %U", format_hex_bytes, pm, n_bytes);
if (vec_len (unused_buffers) > 0)
{
vlib_buffer_free_no_next (vm, unused_buffers, vec_len (unused_buffers));
- _vec_len (unused_buffers) = 0;
+ vec_set_len (unused_buffers, 0);
}
}
}
}
-static_always_inline void
-init_replay_buffers_inline (vlib_main_t * vm,
- pg_stream_t * s,
- u32 * buffers,
- u32 n_buffers, u32 data_offset, u32 n_data)
-{
- u32 n_left, *b, i, l;
-
- n_left = n_buffers;
- b = buffers;
- i = s->current_replay_packet_index;
- l = vec_len (s->replay_packet_templates);
-
- while (n_left >= 1)
- {
- u32 bi0, n0;
- vlib_buffer_t *b0;
- u8 *d0;
-
- bi0 = b[0];
- b += 1;
- n_left -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
-
- vnet_buffer (b0)->sw_if_index[VLIB_RX] = s->sw_if_index[VLIB_RX];
- /* was s->sw_if_index[VLIB_TX]; */
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
-
- d0 = vec_elt (s->replay_packet_templates, i);
- vnet_buffer2 (b0)->pg_replay_timestamp = s->replay_packet_timestamps[i];
-
- n0 = n_data;
- if (data_offset + n_data >= vec_len (d0))
- n0 = vec_len (d0) > data_offset ? vec_len (d0) - data_offset : 0;
-
- b0->current_length = n0;
-
- clib_memcpy_fast (b0->data, d0 + data_offset, n0);
- i = i + 1 == l ? 0 : i + 1;
- }
-}
-
static_always_inline void
init_buffers_inline (vlib_main_t * vm,
pg_stream_t * s,
u32 n_left, *b;
u8 *data, *mask;
- if (vec_len (s->replay_packet_templates) > 0)
- return init_replay_buffers_inline (vm, s, buffers, n_buffers, data_offset,
- n_data);
+ ASSERT (s->replay_packet_templates == 0);
data = s->fixed_packet_data + data_offset;
mask = s->fixed_packet_data_mask + data_offset;
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
+ b0->flags |= s->buffer_flags;
+ b1->flags |= s->buffer_flags;
vnet_buffer (b0)->sw_if_index[VLIB_RX] =
vnet_buffer (b1)->sw_if_index[VLIB_RX] = s->sw_if_index[VLIB_RX];
vnet_buffer (b0)->sw_if_index[VLIB_TX] =
- vnet_buffer (b1)->sw_if_index[VLIB_TX] = (u32) ~ 0;
+ vnet_buffer (b1)->sw_if_index[VLIB_TX] = s->sw_if_index[VLIB_TX];
if (set_data)
{
n_left -= 1;
b0 = vlib_get_buffer (vm, bi0);
+ b0->flags |= s->buffer_flags;
vnet_buffer (b0)->sw_if_index[VLIB_RX] = s->sw_if_index[VLIB_RX];
- /* s->sw_if_index[VLIB_TX]; */
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = s->sw_if_index[VLIB_TX];
if (set_data)
clib_memcpy_fast (b0->data, data, n_data);
uword is_start_of_packet = bi == s->buffer_indices;
u32 n_allocated;
- n_allocated = vlib_buffer_alloc_from_free_list (vm,
- buffers,
- n_alloc,
- bi->free_list_index);
+ ASSERT (vec_len (s->replay_packet_templates) == 0);
+
+ n_allocated = vlib_buffer_alloc (vm, buffers, n_alloc);
if (n_allocated == 0)
return 0;
if (is_start_of_packet)
{
- if (vec_len (s->replay_packet_templates) > 0)
+ pg_generate_set_lengths (pg, s, buffers, n_alloc);
+ if (vec_len (s->buffer_indices) > 1)
+ pg_generate_fix_multi_buffer_lengths (pg, s, buffers, n_alloc);
+
+ pg_generate_edit (pg, s, buffers, n_alloc);
+ }
+
+ return n_alloc;
+}
+
+static u32
+pg_stream_fill_replay (pg_main_t * pg, pg_stream_t * s, u32 n_alloc)
+{
+ pg_buffer_index_t *bi;
+ u32 n_left, i, l;
+ u32 buffer_alloc_request = 0;
+ u32 buffer_alloc_result;
+ u32 current_buffer_index;
+ u32 *buffers;
+ vlib_main_t *vm = vlib_get_main ();
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 buf_sz = vlib_buffer_get_default_data_size (vm);
+ vnet_interface_main_t *im = &vnm->interface_main;
+ vnet_sw_interface_t *si;
+
+ buffers = pg->replay_buffers_by_thread[vm->thread_index];
+ vec_reset_length (buffers);
+ bi = s->buffer_indices;
+
+ n_left = n_alloc;
+ i = s->current_replay_packet_index;
+ l = vec_len (s->replay_packet_templates);
+
+ /* Figure out how many buffers we need */
+ while (n_left > 0)
+ {
+ u8 *d0;
+
+ d0 = vec_elt (s->replay_packet_templates, i);
+ buffer_alloc_request += (vec_len (d0) + (buf_sz - 1)) / buf_sz;
+
+ i = ((i + 1) == l) ? 0 : i + 1;
+ n_left--;
+ }
+
+ ASSERT (buffer_alloc_request > 0);
+ vec_validate (buffers, buffer_alloc_request - 1);
+
+ /* Allocate that many buffers */
+ buffer_alloc_result = vlib_buffer_alloc (vm, buffers, buffer_alloc_request);
+ if (buffer_alloc_result < buffer_alloc_request)
+ {
+ clib_warning ("alloc failure, got %d not %d", buffer_alloc_result,
+ buffer_alloc_request);
+ vlib_buffer_free_no_next (vm, buffers, buffer_alloc_result);
+ pg->replay_buffers_by_thread[vm->thread_index] = buffers;
+ return 0;
+ }
+
+ /* Now go generate the buffers, and add them to the FIFO */
+ n_left = n_alloc;
+
+ current_buffer_index = 0;
+ i = s->current_replay_packet_index;
+ l = vec_len (s->replay_packet_templates);
+ while (n_left > 0)
+ {
+ u8 *d0;
+ int not_last;
+ u32 data_offset;
+ u32 bytes_to_copy, bytes_this_chunk;
+ vlib_buffer_t *b;
+
+ d0 = vec_elt (s->replay_packet_templates, i);
+ data_offset = 0;
+ bytes_to_copy = vec_len (d0);
+
+ /* Add head chunk to pg fifo */
+ clib_fifo_add1 (bi->buffer_fifo, buffers[current_buffer_index]);
+
+ /* Copy the data */
+ while (bytes_to_copy)
{
- vnet_main_t *vnm = vnet_get_main ();
- vnet_interface_main_t *im = &vnm->interface_main;
- vnet_sw_interface_t *si =
- vnet_get_sw_interface (vnm, s->sw_if_index[VLIB_RX]);
- u32 l = 0;
- u32 i;
- for (i = 0; i < n_alloc; i++)
- l += vlib_buffer_index_length_in_chain (vm, buffers[i]);
- vlib_increment_combined_counter (im->combined_sw_if_counters
- + VNET_INTERFACE_COUNTER_RX,
- vlib_get_thread_index (),
- si->sw_if_index, n_alloc, l);
- s->current_replay_packet_index += n_alloc;
- s->current_replay_packet_index %=
- vec_len (s->replay_packet_templates);
+ bytes_this_chunk = clib_min (bytes_to_copy, buf_sz);
+ ASSERT (current_buffer_index < vec_len (buffers));
+ b = vlib_get_buffer (vm, buffers[current_buffer_index]);
+ clib_memcpy_fast (b->data, d0 + data_offset, bytes_this_chunk);
+ vnet_buffer (b)->sw_if_index[VLIB_RX] = s->sw_if_index[VLIB_RX];
+ vnet_buffer (b)->sw_if_index[VLIB_TX] = s->sw_if_index[VLIB_TX];
+ b->flags = s->buffer_flags;
+ b->next_buffer = 0;
+ b->current_data = 0;
+ b->current_length = bytes_this_chunk;
+
+ not_last = bytes_this_chunk < bytes_to_copy;
+ if (not_last)
+ {
+ ASSERT (current_buffer_index < (vec_len (buffers) - 1));
+ b->flags |= VLIB_BUFFER_NEXT_PRESENT;
+ b->next_buffer = buffers[current_buffer_index + 1];
+ }
+ bytes_to_copy -= bytes_this_chunk;
+ data_offset += bytes_this_chunk;
+ current_buffer_index++;
}
- else
- {
- pg_generate_set_lengths (pg, s, buffers, n_alloc);
- if (vec_len (s->buffer_indices) > 1)
- pg_generate_fix_multi_buffer_lengths (pg, s, buffers, n_alloc);
- pg_generate_edit (pg, s, buffers, n_alloc);
- }
+ i = ((i + 1) == l) ? 0 : i + 1;
+ n_left--;
}
+ /* Update the interface counters */
+ si = vnet_get_sw_interface (vnm, s->sw_if_index[VLIB_RX]);
+ l = 0;
+ for (i = 0; i < n_alloc; i++)
+ l += vlib_buffer_index_length_in_chain (vm, buffers[i]);
+ vlib_increment_combined_counter (im->combined_sw_if_counters
+ + VNET_INTERFACE_COUNTER_RX,
+ vlib_get_thread_index (),
+ si->sw_if_index, n_alloc, l);
+
+ s->current_replay_packet_index += n_alloc;
+ s->current_replay_packet_index %= vec_len (s->replay_packet_templates);
+
+ pg->replay_buffers_by_thread[vm->thread_index] = buffers;
return n_alloc;
}
+
static u32
pg_stream_fill (pg_main_t * pg, pg_stream_t * s, u32 n_buffers)
{
n_alloc = 0;
}
+ /*
+ * Handle pcap replay directly
+ */
+ if (s->replay_packet_templates)
+ return pg_stream_fill_replay (pg, s, n_alloc);
+
/* All buffer fifos should have the same size. */
if (CLIB_DEBUG > 0)
{
s = format (s, "stream %d", t->stream_index);
s = format (s, ", %d bytes", t->packet_length);
- s = format (s, ", %d sw_if_index", t->sw_if_index);
+ s = format (s, ", sw_if_index %d", t->sw_if_index);
- s = format (s, "\n%U%U",
- format_white_space, indent, format_vnet_buffer, &t->buffer);
+ s = format (s, "\n%U%U", format_white_space, indent,
+ format_vnet_buffer_no_chain, &t->buffer);
s = format (s, "\n%U", format_white_space, indent);
return s;
}
-static void
+static int
pg_input_trace (pg_main_t * pg,
- vlib_node_runtime_t * node,
- pg_stream_t * s, u32 * buffers, u32 n_buffers)
+ vlib_node_runtime_t * node, u32 stream_index, u32 next_index,
+ u32 * buffers, const u32 n_buffers, const u32 n_trace)
{
vlib_main_t *vm = vlib_get_main ();
- u32 *b, n_left, stream_index, next_index;
+ u32 *b, n_left;
+ u32 n_trace0 = 0, n_trace1 = 0;
- n_left = n_buffers;
+ n_left = clib_min (n_buffers, n_trace);
b = buffers;
- stream_index = s - pg->streams;
- next_index = s->next_index;
while (n_left >= 2)
{
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
- vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1);
- vlib_trace_buffer (vm, node, next_index, b1, /* follow_chain */ 1);
+ n_trace0 +=
+ vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1);
+ n_trace1 +=
+ vlib_trace_buffer (vm, node, next_index, b1, /* follow_chain */ 1);
t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0]));
t1 = vlib_add_trace (vm, node, b1, sizeof (t1[0]));
b0 = vlib_get_buffer (vm, bi0);
- vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1);
+ n_trace0 +=
+ vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1);
t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0]));
t0->stream_index = stream_index;
clib_memcpy_fast (t0->buffer.pre_data, b0->data,
sizeof (t0->buffer.pre_data));
}
+
+ return n_trace - n_trace0 - n_trace1;
+}
+
+static_always_inline void
+fill_buffer_offload_flags (vlib_main_t *vm, u32 *buffers, u32 n_buffers,
+ u32 buffer_oflags, int gso_enabled, u32 gso_size)
+{
+ for (int i = 0; i < n_buffers; i++)
+ {
+ vlib_buffer_t *b0 = vlib_get_buffer (vm, buffers[i]);
+ u8 l4_proto = 0;
+ vnet_buffer_oflags_t oflags = 0;
+
+ ethernet_header_t *eh =
+ (ethernet_header_t *) vlib_buffer_get_current (b0);
+ u16 ethertype = clib_net_to_host_u16 (eh->type);
+ u16 l2hdr_sz = sizeof (ethernet_header_t);
+
+ if (ethernet_frame_is_tagged (ethertype))
+ {
+ ethernet_vlan_header_t *vlan = (ethernet_vlan_header_t *) (eh + 1);
+
+ ethertype = clib_net_to_host_u16 (vlan->type);
+ l2hdr_sz += sizeof (*vlan);
+ if (ethertype == ETHERNET_TYPE_VLAN)
+ {
+ vlan++;
+ ethertype = clib_net_to_host_u16 (vlan->type);
+ l2hdr_sz += sizeof (*vlan);
+ }
+ }
+
+ vnet_buffer (b0)->l2_hdr_offset = 0;
+ vnet_buffer (b0)->l3_hdr_offset = l2hdr_sz;
+
+ if (PREDICT_TRUE (ethertype == ETHERNET_TYPE_IP4))
+ {
+ ip4_header_t *ip4 =
+ (ip4_header_t *) (vlib_buffer_get_current (b0) + l2hdr_sz);
+ vnet_buffer (b0)->l4_hdr_offset = l2hdr_sz + ip4_header_bytes (ip4);
+ l4_proto = ip4->protocol;
+ b0->flags |=
+ (VNET_BUFFER_F_IS_IP4 | VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
+ VNET_BUFFER_F_L3_HDR_OFFSET_VALID |
+ VNET_BUFFER_F_L4_HDR_OFFSET_VALID);
+ if (buffer_oflags & VNET_BUFFER_OFFLOAD_F_IP_CKSUM)
+ oflags |= VNET_BUFFER_OFFLOAD_F_IP_CKSUM;
+ }
+ else if (PREDICT_TRUE (ethertype == ETHERNET_TYPE_IP6))
+ {
+ ip6_header_t *ip6 =
+ (ip6_header_t *) (vlib_buffer_get_current (b0) + l2hdr_sz);
+ vnet_buffer (b0)->l4_hdr_offset = l2hdr_sz + sizeof (ip6_header_t);
+ /* FIXME IPv6 EH traversal */
+ l4_proto = ip6->protocol;
+ b0->flags |=
+ (VNET_BUFFER_F_IS_IP6 | VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
+ VNET_BUFFER_F_L3_HDR_OFFSET_VALID |
+ VNET_BUFFER_F_L4_HDR_OFFSET_VALID);
+ }
+
+ if (l4_proto == IP_PROTOCOL_TCP)
+ {
+ if (buffer_oflags & VNET_BUFFER_OFFLOAD_F_TCP_CKSUM)
+ oflags |= VNET_BUFFER_OFFLOAD_F_TCP_CKSUM;
+
+ /* only set GSO flag for chained buffers */
+ if (gso_enabled && (b0->flags & VLIB_BUFFER_NEXT_PRESENT))
+ {
+ b0->flags |= VNET_BUFFER_F_GSO;
+ tcp_header_t *tcp =
+ (tcp_header_t *) (vlib_buffer_get_current (b0) +
+ vnet_buffer (b0)->l4_hdr_offset);
+ vnet_buffer2 (b0)->gso_l4_hdr_sz = tcp_header_bytes (tcp);
+ vnet_buffer2 (b0)->gso_size = gso_size;
+ }
+ }
+ else if (l4_proto == IP_PROTOCOL_UDP)
+ {
+ if (buffer_oflags & VNET_BUFFER_OFFLOAD_F_UDP_CKSUM)
+ oflags |= VNET_BUFFER_OFFLOAD_F_UDP_CKSUM;
+ }
+
+ if (oflags)
+ vnet_buffer_offload_flags_set (b0, oflags);
+ }
}
static uword
u8 feature_arc_index = fm->device_input_feature_arc_index;
cm = &fm->feature_config_mains[feature_arc_index];
u32 current_config_index = ~(u32) 0;
+ pg_interface_t *pi;
int i;
+ pi = pool_elt_at_index (
+ pg->interfaces, pg->if_index_by_sw_if_index[s->sw_if_index[VLIB_RX]]);
bi0 = s->buffer_indices;
n_packets_in_fifo = pg_stream_fill (pg, s, n_packets_to_generate);
&next_index, 0);
}
+ if (PREDICT_FALSE (pi->coalesce_enabled))
+ {
+ vnet_hw_if_tx_queue_t txq = { 0 };
+ vnet_gro_flow_table_schedule_node_on_dispatcher (vm, &txq,
+ pi->flow_table);
+ }
+
while (n_packets_to_generate > 0)
{
u32 *head, *start, *end;
vlib_next_frame_t *nf;
vlib_frame_t *f;
ethernet_input_frame_t *ef;
- pg_interface_t *pi;
vlib_get_new_next_frame (vm, node, next_index, to_next, n_left);
nf = vlib_node_runtime_get_next_frame (vm, node, next_index);
- f = vlib_get_frame (vm, nf->frame_index);
+ f = vlib_get_frame (vm, nf->frame);
f->flags = ETH_INPUT_FRAME_F_SINGLE_SW_IF_IDX;
ef = vlib_frame_scalar_args (f);
- pi = pool_elt_at_index (pg->interfaces, s->pg_if_index);
ef->sw_if_index = pi->sw_if_index;
ef->hw_if_index = pi->hw_if_index;
+ vlib_frame_no_append (f);
}
else
vlib_get_next_frame (vm, node, next_index, to_next, n_left);
head = clib_fifo_head (bi0->buffer_fifo);
if (head + n_this_frame <= end)
- vlib_copy_buffers (to_next, head, n_this_frame);
+ vlib_buffer_copy_indices (to_next, head, n_this_frame);
else
{
u32 n = end - head;
- vlib_copy_buffers (to_next + 0, head, n);
- vlib_copy_buffers (to_next + n, start, n_this_frame - n);
+ vlib_buffer_copy_indices (to_next + 0, head, n);
+ vlib_buffer_copy_indices (to_next + n, start, n_this_frame - n);
}
- vec_foreach (bi, s->buffer_indices)
- clib_fifo_advance_head (bi->buffer_fifo, n_this_frame);
+ if (s->replay_packet_templates == 0)
+ {
+ vec_foreach (bi, s->buffer_indices)
+ clib_fifo_advance_head (bi->buffer_fifo, n_this_frame);
+ }
+ else
+ {
+ clib_fifo_advance_head (bi0->buffer_fifo, n_this_frame);
+ }
if (current_config_index != ~(u32) 0)
for (i = 0; i < n_this_frame; i++)
vnet_buffer (b)->feature_arc_index = feature_arc_index;
}
+ if (pi->gso_enabled || (s->buffer_flags & VNET_BUFFER_F_OFFLOAD))
+ {
+ fill_buffer_offload_flags (vm, to_next, n_this_frame,
+ s->buffer_oflags, pi->gso_enabled,
+ pi->gso_size);
+ }
+
n_trace = vlib_get_trace_count (vm, node);
- if (n_trace > 0)
+ if (PREDICT_FALSE (n_trace > 0))
{
- u32 n = clib_min (n_trace, n_this_frame);
- pg_input_trace (pg, node, s, to_next, n);
- vlib_set_trace_count (vm, node, n_trace - n);
+ n_trace =
+ pg_input_trace (pg, node, s - pg->streams, next_index, to_next,
+ n_this_frame, n_trace);
+ vlib_set_trace_count (vm, node, n_trace);
}
n_packets_to_generate -= n_this_frame;
n_packets_generated += n_this_frame;
n_left -= n_this_frame;
+ if (CLIB_DEBUG > 0)
+ {
+ int i;
+ vlib_buffer_t *b;
+
+ for (i = 0; i < n_this_frame; i++)
+ {
+ b = vlib_get_buffer (vm, to_next[i]);
+ ASSERT ((b->flags & VLIB_BUFFER_NEXT_PRESENT) == 0 ||
+ b->current_length >= VLIB_BUFFER_MIN_CHAIN_SEG_SIZE);
+ }
+ }
vlib_put_next_frame (vm, node, next_index, n_left);
}
n_packets = s->n_packets_limit - s->n_packets_generated;
/* Generate up to one frame's worth of packets. */
- if (n_packets > VLIB_FRAME_SIZE)
- n_packets = VLIB_FRAME_SIZE;
+ if (n_packets > s->n_max_frame)
+ n_packets = s->n_max_frame;
if (n_packets > 0)
n_packets = pg_generate_packets (node, pg, s, n_packets);
if (vlib_num_workers ())
worker_index = vlib_get_current_worker_index ();
- /* *INDENT-OFF* */
- clib_bitmap_foreach (i, pg->enabled_streams[worker_index], ({
+ clib_bitmap_foreach (i, pg->enabled_streams[worker_index]) {
pg_stream_t *s = vec_elt_at_index (pg->streams, i);
n_packets += pg_input_stream (node, pg, s);
- }));
- /* *INDENT-ON* */
+ }
return n_packets;
}
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (pg_input_node) = {
.function = pg_input,
+ .flags = VLIB_NODE_FLAG_TRACE_SUPPORTED,
.name = "pg-input",
.sibling_of = "device-input",
.type = VLIB_NODE_TYPE_INPUT,
/* Input node will be left disabled until a stream is active. */
.state = VLIB_NODE_STATE_DISABLED,
};
-/* *INDENT-ON* */
+
+VLIB_NODE_FN (pg_input_mac_filter) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
+ u16 nexts[VLIB_FRAME_SIZE], *next;
+ pg_main_t *pg = &pg_main;
+ u32 n_left, *from;
+
+ from = vlib_frame_vector_args (frame);
+ n_left = frame->n_vectors;
+ next = nexts;
+
+ clib_memset_u16 (next, 0, VLIB_FRAME_SIZE);
+
+ vlib_get_buffers (vm, from, bufs, n_left);
+
+ while (n_left)
+ {
+ const ethernet_header_t *eth;
+ pg_interface_t *pi;
+ mac_address_t in;
+
+ pi = pool_elt_at_index (
+ pg->interfaces,
+ pg->if_index_by_sw_if_index[vnet_buffer (b[0])->sw_if_index[VLIB_RX]]);
+ eth = vlib_buffer_get_current (b[0]);
+
+ mac_address_from_bytes (&in, eth->dst_address);
+
+ if (PREDICT_FALSE (ethernet_address_cast (in.bytes)))
+ {
+ mac_address_t *allowed;
+
+ if (0 != vec_len (pi->allowed_mcast_macs))
+ {
+ vec_foreach (allowed, pi->allowed_mcast_macs)
+ {
+ if (0 != mac_address_cmp (allowed, &in))
+ break;
+ }
+
+ if (vec_is_member (allowed, pi->allowed_mcast_macs))
+ vnet_feature_next_u16 (&next[0], b[0]);
+ }
+ }
+
+ b += 1;
+ next += 1;
+ n_left -= 1;
+ }
+
+ vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
+
+ return (frame->n_vectors);
+}
+
+VLIB_REGISTER_NODE (pg_input_mac_filter) = {
+ .name = "pg-input-mac-filter",
+ .vector_size = sizeof (u32),
+ .format_trace = format_pg_input_trace,
+ .n_next_nodes = 1,
+ .next_nodes = {
+ [0] = "error-drop",
+ },
+};
+VNET_FEATURE_INIT (pg_input_mac_filter_feat, static) = {
+ .arc_name = "device-input",
+ .node_name = "pg-input-mac-filter",
+};
+
+static clib_error_t *
+pg_input_mac_filter_cfg (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u32 sw_if_index = ~0;
+ int is_enable = 1;
+
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "%U",
+ unformat_vnet_sw_interface,
+ vnet_get_main (), &sw_if_index))
+ ;
+ else if (unformat (line_input, "%U",
+ unformat_vlib_enable_disable, &is_enable))
+ ;
+ else
+ return clib_error_create ("unknown input `%U'",
+ format_unformat_error, line_input);
+ }
+ unformat_free (line_input);
+
+ if (~0 == sw_if_index)
+ return clib_error_create ("specify interface");
+
+ vnet_feature_enable_disable ("device-input",
+ "pg-input-mac-filter",
+ sw_if_index, is_enable, 0, 0);
+
+ return NULL;
+}
+
+VLIB_CLI_COMMAND (enable_streams_cli, static) = {
+ .path = "packet-generator mac-filter",
+ .short_help = "packet-generator mac-filter <INTERFACE> <on|off>",
+ .function = pg_input_mac_filter_cfg,
+};
+
/*
* fd.io coding-style-patch-verification: ON
Code Review / vpp.git / blobdiff