u8 l4_proto = 0;
u8 l4_hdr_sz = 0;
- ethernet_header_t *eh = (ethernet_header_t *) b0->data;
+ 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);
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 *) (b0->data + l2hdr_sz);
+ 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);
- b0->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM;
+ (VNET_BUFFER_F_IS_IP4 | VNET_BUFFER_F_OFFLOAD_IP_CKSUM);
+ b0->flags |= (VNET_BUFFER_F_L2_HDR_OFFSET_VALID
+ | VNET_BUFFER_F_L3_HDR_OFFSET_VALID |
+ VNET_BUFFER_F_L4_HDR_OFFSET_VALID);
}
else if (PREDICT_TRUE (ethertype == ETHERNET_TYPE_IP6))
{
- ip6_header_t *ip6 = (ip6_header_t *) (b0->data + l2hdr_sz);
- /* FIXME IPv6 EH traversal */
+ 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_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)
{
- b0->flags |= VNET_BUFFER_F_OFFLOAD_TCP_CKSUM;
- tcp_header_t *tcp = (tcp_header_t *) (b0->data +
+ b0->flags |= (VNET_BUFFER_F_OFFLOAD_TCP_CKSUM | VNET_BUFFER_F_GSO);
+ tcp_header_t *tcp = (tcp_header_t *) (vlib_buffer_get_current (b0) +
vnet_buffer
(b0)->l4_hdr_offset);
l4_hdr_sz = tcp_header_bytes (tcp);
tcp->checksum = 0;
vnet_buffer2 (b0)->gso_l4_hdr_sz = l4_hdr_sz;
vnet_buffer2 (b0)->gso_size = packet_data_size;
- b0->flags |= VNET_BUFFER_F_GSO;
}
else if (l4_proto == IP_PROTOCOL_UDP)
{
b0->flags |= VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
- udp_header_t *udp = (udp_header_t *) (b0->data +
+ udp_header_t *udp = (udp_header_t *) (vlib_buffer_get_current (b0) +
vnet_buffer
(b0)->l4_hdr_offset);
vnet_buffer2 (b0)->gso_l4_hdr_sz = sizeof (*udp);
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);