Function pcap_write_packets

dpdk/app/dumpcap/main.c:872–901

Write multiple packets in older pcap format */

/* Write multiple packets in older pcap format */
static ssize_t
pcap_write_packets(pcap_dumper_t *dumper,
		   struct rte_mbuf *pkts[], uint16_t n)
{
	uint8_t temp_data[RTE_ETHER_MAX_JUMBO_FRAME_LEN];
	struct pcap_pkthdr header;
	uint16_t i;
	size_t total = 0;

	gettimeofday(&header.ts, NULL);

	for (i = 0; i < n; i++) {
		struct rte_mbuf *m = pkts[i];
		size_t len, caplen;

		len = caplen = rte_pktmbuf_pkt_len(m);
		if (unlikely(!rte_pktmbuf_is_contiguous(m) && len > sizeof(temp_data)))
			caplen = sizeof(temp_data);

		header.len = len;
		header.caplen = caplen;

		pcap_dump((u_char *)dumper, &header,
			  rte_pktmbuf_read(m, 0, caplen, temp_data));

		total += sizeof(header) + caplen;
	}

	return total;
}

/* Process all packets in ring and dump to capture file */
static int process_ring(dumpcap_out_t out, struct rte_ring *r)