--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <stdint.h>
+#include <string.h>
+
+#include <rte_mbuf.h>
+#include <rte_mempool.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+
+#ifdef RTE_NEXT_ABI
+
+#ifdef RTE_PORT_PCAP
+#include <rte_ether.h>
+#include <pcap.h>
+#endif
+
+#else
+#undef RTE_PORT_PCAP
+#endif
+
+#include "rte_port_source_sink.h"
+
+/*
+ * Port SOURCE
+ */
+#ifdef RTE_PORT_STATS_COLLECT
+
+#define RTE_PORT_SOURCE_STATS_PKTS_IN_ADD(port, val) \
+ port->stats.n_pkts_in += val
+#define RTE_PORT_SOURCE_STATS_PKTS_DROP_ADD(port, val) \
+ port->stats.n_pkts_drop += val
+
+#else
+
+#define RTE_PORT_SOURCE_STATS_PKTS_IN_ADD(port, val)
+#define RTE_PORT_SOURCE_STATS_PKTS_DROP_ADD(port, val)
+
+#endif
+
+struct rte_port_source {
+ struct rte_port_in_stats stats;
+
+ struct rte_mempool *mempool;
+
+ /* PCAP buffers and indices */
+ uint8_t **pkts;
+ uint8_t *pkt_buff;
+ uint32_t *pkt_len;
+ uint32_t n_pkts;
+ uint32_t pkt_index;
+};
+
+#ifdef RTE_NEXT_ABI
+
+#ifdef RTE_PORT_PCAP
+
+static int
+pcap_source_load(struct rte_port_source *port,
+ const char *file_name,
+ uint32_t n_bytes_per_pkt,
+ int socket_id)
+{
+ uint32_t n_pkts = 0;
+ uint32_t i;
+ uint32_t *pkt_len_aligns = NULL;
+ size_t total_buff_len = 0;
+ pcap_t *pcap_handle;
+ char pcap_errbuf[PCAP_ERRBUF_SIZE];
+ uint32_t max_len;
+ struct pcap_pkthdr pcap_hdr;
+ const uint8_t *pkt;
+ uint8_t *buff = NULL;
+ uint32_t pktmbuf_maxlen = (uint32_t)
+ (rte_pktmbuf_data_room_size(port->mempool) -
+ RTE_PKTMBUF_HEADROOM);
+
+ if (n_bytes_per_pkt == 0)
+ max_len = pktmbuf_maxlen;
+ else
+ max_len = RTE_MIN(n_bytes_per_pkt, pktmbuf_maxlen);
+
+ /* first time open, get packet number */
+ pcap_handle = pcap_open_offline(file_name, pcap_errbuf);
+ if (pcap_handle == NULL) {
+ RTE_LOG(ERR, PORT, "Failed to open pcap file "
+ "'%s' for reading\n", file_name);
+ goto error_exit;
+ }
+
+ while ((pkt = pcap_next(pcap_handle, &pcap_hdr)) != NULL)
+ n_pkts++;
+
+ pcap_close(pcap_handle);
+
+ port->pkt_len = rte_zmalloc_socket("PCAP",
+ (sizeof(*port->pkt_len) * n_pkts), 0, socket_id);
+ if (port->pkt_len == NULL) {
+ RTE_LOG(ERR, PORT, "No enough memory\n");
+ goto error_exit;
+ }
+
+ pkt_len_aligns = rte_malloc("PCAP",
+ (sizeof(*pkt_len_aligns) * n_pkts), 0);
+ if (pkt_len_aligns == NULL) {
+ RTE_LOG(ERR, PORT, "No enough memory\n");
+ goto error_exit;
+ }
+
+ port->pkts = rte_zmalloc_socket("PCAP",
+ (sizeof(*port->pkts) * n_pkts), 0, socket_id);
+ if (port->pkts == NULL) {
+ RTE_LOG(ERR, PORT, "No enough memory\n");
+ goto error_exit;
+ }
+
+ /* open 2nd time, get pkt_len */
+ pcap_handle = pcap_open_offline(file_name, pcap_errbuf);
+ if (pcap_handle == NULL) {
+ RTE_LOG(ERR, PORT, "Failed to open pcap file "
+ "'%s' for reading\n", file_name);
+ goto error_exit;
+ }
+
+ for (i = 0; i < n_pkts; i++) {
+ pkt = pcap_next(pcap_handle, &pcap_hdr);
+ port->pkt_len[i] = RTE_MIN(max_len, pcap_hdr.len);
+ pkt_len_aligns[i] = RTE_CACHE_LINE_ROUNDUP(
+ port->pkt_len[i]);
+ total_buff_len += pkt_len_aligns[i];
+ }
+
+ pcap_close(pcap_handle);
+
+ /* allocate a big trunk of data for pcap file load */
+ buff = rte_zmalloc_socket("PCAP",
+ total_buff_len, 0, socket_id);
+ if (buff == NULL) {
+ RTE_LOG(ERR, PORT, "No enough memory\n");
+ goto error_exit;
+ }
+
+ port->pkt_buff = buff;
+
+ /* open file one last time to copy the pkt content */
+ pcap_handle = pcap_open_offline(file_name, pcap_errbuf);
+ if (pcap_handle == NULL) {
+ RTE_LOG(ERR, PORT, "Failed to open pcap file "
+ "'%s' for reading\n", file_name);
+ goto error_exit;
+ }
+
+ for (i = 0; i < n_pkts; i++) {
+ pkt = pcap_next(pcap_handle, &pcap_hdr);
+ rte_memcpy(buff, pkt, port->pkt_len[i]);
+ port->pkts[i] = buff;
+ buff += pkt_len_aligns[i];
+ }
+
+ pcap_close(pcap_handle);
+
+ port->n_pkts = n_pkts;
+
+ rte_free(pkt_len_aligns);
+
+ RTE_LOG(INFO, PORT, "Successfully load pcap file "
+ "'%s' with %u pkts\n",
+ file_name, port->n_pkts);
+
+ return 0;
+
+error_exit:
+ if (pkt_len_aligns)
+ rte_free(pkt_len_aligns);
+ if (port->pkt_len)
+ rte_free(port->pkt_len);
+ if (port->pkts)
+ rte_free(port->pkts);
+ if (port->pkt_buff)
+ rte_free(port->pkt_buff);
+
+ return -1;
+}
+
+#define PCAP_SOURCE_LOAD(port, file_name, n_bytes, socket_id) \
+ pcap_source_load(port, file_name, n_bytes, socket_id)
+
+#else /* RTE_PORT_PCAP */
+
+#define PCAP_SOURCE_LOAD(port, file_name, n_bytes, socket_id) \
+({ \
+ int _ret = 0; \
+ \
+ if (file_name) { \
+ RTE_LOG(ERR, PORT, "Source port field " \
+ "\"file_name\" is not NULL.\n"); \
+ _ret = -1; \
+ } \
+ \
+ _ret; \
+})
+
+#endif /* RTE_PORT_PCAP */
+
+#endif /* RTE_NEXT_ABI */
+
+static void *
+rte_port_source_create(void *params, int socket_id)
+{
+ struct rte_port_source_params *p =
+ (struct rte_port_source_params *) params;
+ struct rte_port_source *port;
+
+ /* Check input arguments*/
+ if ((p == NULL) || (p->mempool == NULL)) {
+ RTE_LOG(ERR, PORT, "%s: Invalid params\n", __func__);
+ return NULL;
+ }
+
+ /* Memory allocation */
+ port = rte_zmalloc_socket("PORT", sizeof(*port),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (port == NULL) {
+ RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__);
+ return NULL;
+ }
+
+ /* Initialization */
+ port->mempool = (struct rte_mempool *) p->mempool;
+
+#ifdef RTE_NEXT_ABI
+
+ if (p->file_name) {
+ int status = PCAP_SOURCE_LOAD(port, p->file_name,
+ p->n_bytes_per_pkt, socket_id);
+
+ if (status < 0) {
+ rte_free(port);
+ port = NULL;
+ }
+ }
+
+#endif
+
+ return port;
+}
+
+static int
+rte_port_source_free(void *port)
+{
+ struct rte_port_source *p =
+ (struct rte_port_source *)port;
+
+ /* Check input parameters */
+ if (p == NULL)
+ return 0;
+
+ if (p->pkt_len)
+ rte_free(p->pkt_len);
+ if (p->pkts)
+ rte_free(p->pkts);
+ if (p->pkt_buff)
+ rte_free(p->pkt_buff);
+
+ rte_free(p);
+
+ return 0;
+}
+
+static int
+rte_port_source_rx(void *port, struct rte_mbuf **pkts, uint32_t n_pkts)
+{
+ struct rte_port_source *p = (struct rte_port_source *) port;
+ uint32_t i;
+
+ if (rte_mempool_get_bulk(p->mempool, (void **) pkts, n_pkts) != 0)
+ return 0;
+
+ for (i = 0; i < n_pkts; i++) {
+ rte_mbuf_refcnt_set(pkts[i], 1);
+ rte_pktmbuf_reset(pkts[i]);
+ }
+
+ if (p->pkt_buff != NULL) {
+ for (i = 0; i < n_pkts; i++) {
+ uint8_t *pkt_data = rte_pktmbuf_mtod(pkts[i],
+ uint8_t *);
+
+ rte_memcpy(pkt_data, p->pkts[p->pkt_index],
+ p->pkt_len[p->pkt_index]);
+ pkts[i]->data_len = p->pkt_len[p->pkt_index];
+ pkts[i]->pkt_len = pkts[i]->data_len;
+
+ p->pkt_index++;
+ if (p->pkt_index >= p->n_pkts)
+ p->pkt_index = 0;
+ }
+ }
+
+ RTE_PORT_SOURCE_STATS_PKTS_IN_ADD(p, n_pkts);
+
+ return n_pkts;
+}
+
+static int
+rte_port_source_stats_read(void *port,
+ struct rte_port_in_stats *stats, int clear)
+{
+ struct rte_port_source *p =
+ (struct rte_port_source *) port;
+
+ if (stats != NULL)
+ memcpy(stats, &p->stats, sizeof(p->stats));
+
+ if (clear)
+ memset(&p->stats, 0, sizeof(p->stats));
+
+ return 0;
+}
+
+/*
+ * Port SINK
+ */
+#ifdef RTE_PORT_STATS_COLLECT
+
+#define RTE_PORT_SINK_STATS_PKTS_IN_ADD(port, val) \
+ (port->stats.n_pkts_in += val)
+#define RTE_PORT_SINK_STATS_PKTS_DROP_ADD(port, val) \
+ (port->stats.n_pkts_drop += val)
+
+#else
+
+#define RTE_PORT_SINK_STATS_PKTS_IN_ADD(port, val)
+#define RTE_PORT_SINK_STATS_PKTS_DROP_ADD(port, val)
+
+#endif
+
+struct rte_port_sink {
+ struct rte_port_out_stats stats;
+
+ /* PCAP dumper handle and pkts number */
+ void *dumper;
+ uint32_t max_pkts;
+ uint32_t pkt_index;
+ uint32_t dump_finish;
+};
+
+#ifdef RTE_PORT_PCAP
+
+static int
+pcap_sink_open(struct rte_port_sink *port,
+ const char *file_name,
+ uint32_t max_n_pkts)
+{
+ pcap_t *tx_pcap;
+ pcap_dumper_t *pcap_dumper;
+
+ /** Open a dead pcap handler for opening dumper file */
+ tx_pcap = pcap_open_dead(DLT_EN10MB, 65535);
+ if (tx_pcap == NULL) {
+ RTE_LOG(ERR, PORT, "Cannot open pcap dead handler\n");
+ return -1;
+ }
+
+ /* The dumper is created using the previous pcap_t reference */
+ pcap_dumper = pcap_dump_open(tx_pcap, file_name);
+ if (pcap_dumper == NULL) {
+ RTE_LOG(ERR, PORT, "Failed to open pcap file "
+ "\"%s\" for writing\n", file_name);
+ return -1;
+ }
+
+ port->dumper = pcap_dumper;
+ port->max_pkts = max_n_pkts;
+ port->pkt_index = 0;
+ port->dump_finish = 0;
+
+ RTE_LOG(INFO, PORT, "Ready to dump packets to file \"%s\"\n",
+ file_name);
+
+ return 0;
+}
+
+static void
+pcap_sink_write_pkt(struct rte_port_sink *port, struct rte_mbuf *mbuf)
+{
+ uint8_t *pcap_dumper = (uint8_t *)(port->dumper);
+ struct pcap_pkthdr pcap_hdr;
+ uint8_t jumbo_pkt_buf[ETHER_MAX_JUMBO_FRAME_LEN];
+ uint8_t *pkt;
+
+ /* Maximum num packets already reached */
+ if (port->dump_finish)
+ return;
+
+ pkt = rte_pktmbuf_mtod(mbuf, uint8_t *);
+
+ pcap_hdr.len = mbuf->pkt_len;
+ pcap_hdr.caplen = pcap_hdr.len;
+ gettimeofday(&(pcap_hdr.ts), NULL);
+
+ if (mbuf->nb_segs > 1) {
+ struct rte_mbuf *jumbo_mbuf;
+ uint32_t pkt_index = 0;
+
+ /* if packet size longer than ETHER_MAX_JUMBO_FRAME_LEN,
+ * ignore it.
+ */
+ if (mbuf->pkt_len > ETHER_MAX_JUMBO_FRAME_LEN)
+ return;
+
+ for (jumbo_mbuf = mbuf; jumbo_mbuf != NULL;
+ jumbo_mbuf = jumbo_mbuf->next) {
+ rte_memcpy(&jumbo_pkt_buf[pkt_index],
+ rte_pktmbuf_mtod(jumbo_mbuf, uint8_t *),
+ jumbo_mbuf->data_len);
+ pkt_index += jumbo_mbuf->data_len;
+ }
+
+ jumbo_pkt_buf[pkt_index] = '\0';
+
+ pkt = jumbo_pkt_buf;
+ }
+
+ pcap_dump(pcap_dumper, &pcap_hdr, pkt);
+
+ port->pkt_index++;
+
+ if ((port->max_pkts != 0) && (port->pkt_index >= port->max_pkts)) {
+ port->dump_finish = 1;
+ RTE_LOG(INFO, PORT, "Dumped %u packets to file\n",
+ port->pkt_index);
+ }
+
+}
+
+#define PCAP_SINK_OPEN(port, file_name, max_n_pkts) \
+ pcap_sink_open(port, file_name, max_n_pkts)
+
+#define PCAP_SINK_WRITE_PKT(port, mbuf) \
+ pcap_sink_write_pkt(port, mbuf)
+
+#define PCAP_SINK_FLUSH_PKT(dumper) \
+do { \
+ if (dumper) \
+ pcap_dump_flush((pcap_dumper_t *)dumper); \
+} while (0)
+
+#define PCAP_SINK_CLOSE(dumper) \
+do { \
+ if (dumper) \
+ pcap_dump_close((pcap_dumper_t *)dumper); \
+} while (0)
+
+#else
+
+#define PCAP_SINK_OPEN(port, file_name, max_n_pkts) \
+({ \
+ int _ret = 0; \
+ \
+ if (file_name) { \
+ RTE_LOG(ERR, PORT, "Sink port field " \
+ "\"file_name\" is not NULL.\n"); \
+ _ret = -1; \
+ } \
+ \
+ _ret; \
+})
+
+#define PCAP_SINK_WRITE_PKT(port, mbuf) {}
+
+#define PCAP_SINK_FLUSH_PKT(dumper)
+
+#define PCAP_SINK_CLOSE(dumper)
+
+#endif
+
+static void *
+rte_port_sink_create(void *params, int socket_id)
+{
+ struct rte_port_sink *port;
+ struct rte_port_sink_params *p = params;
+
+ /* Memory allocation */
+ port = rte_zmalloc_socket("PORT", sizeof(*port),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (port == NULL) {
+ RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__);
+ return NULL;
+ }
+
+ if (!p)
+ return port;
+
+ if (p->file_name) {
+ int status = PCAP_SINK_OPEN(port, p->file_name,
+ p->max_n_pkts);
+
+ if (status < 0) {
+ rte_free(port);
+ port = NULL;
+ }
+ }
+
+ return port;
+}
+
+static int
+rte_port_sink_tx(void *port, struct rte_mbuf *pkt)
+{
+ struct rte_port_sink *p = (struct rte_port_sink *) port;
+
+ RTE_PORT_SINK_STATS_PKTS_IN_ADD(p, 1);
+ if (p->dumper != NULL)
+ PCAP_SINK_WRITE_PKT(p, pkt);
+ rte_pktmbuf_free(pkt);
+ RTE_PORT_SINK_STATS_PKTS_DROP_ADD(p, 1);
+
+ return 0;
+}
+
+static int
+rte_port_sink_tx_bulk(void *port, struct rte_mbuf **pkts,
+ uint64_t pkts_mask)
+{
+ struct rte_port_sink *p = (struct rte_port_sink *) port;
+
+ if ((pkts_mask & (pkts_mask + 1)) == 0) {
+ uint64_t n_pkts = __builtin_popcountll(pkts_mask);
+ uint32_t i;
+
+ RTE_PORT_SINK_STATS_PKTS_IN_ADD(p, n_pkts);
+ RTE_PORT_SINK_STATS_PKTS_DROP_ADD(p, n_pkts);
+
+ if (p->dumper) {
+ for (i = 0; i < n_pkts; i++)
+ PCAP_SINK_WRITE_PKT(p, pkts[i]);
+ }
+
+ for (i = 0; i < n_pkts; i++) {
+ struct rte_mbuf *pkt = pkts[i];
+
+ rte_pktmbuf_free(pkt);
+ }
+
+ } else {
+ if (p->dumper) {
+ uint64_t dump_pkts_mask = pkts_mask;
+ uint32_t pkt_index;
+
+ for ( ; dump_pkts_mask; ) {
+ pkt_index = __builtin_ctzll(
+ dump_pkts_mask);
+ PCAP_SINK_WRITE_PKT(p, pkts[pkt_index]);
+ dump_pkts_mask &= ~(1LLU << pkt_index);
+ }
+ }
+
+ for ( ; pkts_mask; ) {
+ uint32_t pkt_index = __builtin_ctzll(pkts_mask);
+ uint64_t pkt_mask = 1LLU << pkt_index;
+ struct rte_mbuf *pkt = pkts[pkt_index];
+
+ RTE_PORT_SINK_STATS_PKTS_IN_ADD(p, 1);
+ RTE_PORT_SINK_STATS_PKTS_DROP_ADD(p, 1);
+ rte_pktmbuf_free(pkt);
+ pkts_mask &= ~pkt_mask;
+ }
+ }
+
+ return 0;
+}
+
+static int
+rte_port_sink_flush(void *port)
+{
+ struct rte_port_sink *p =
+ (struct rte_port_sink *)port;
+
+ if (p == NULL)
+ return 0;
+
+ PCAP_SINK_FLUSH_PKT(p->dumper);
+
+ return 0;
+}
+
+static int
+rte_port_sink_free(void *port)
+{
+ struct rte_port_sink *p =
+ (struct rte_port_sink *)port;
+
+ if (p == NULL)
+ return 0;
+
+ PCAP_SINK_CLOSE(p->dumper);
+
+ rte_free(p);
+
+ return 0;
+}
+
+static int
+rte_port_sink_stats_read(void *port, struct rte_port_out_stats *stats,
+ int clear)
+{
+ struct rte_port_sink *p =
+ (struct rte_port_sink *) port;
+
+ if (stats != NULL)
+ memcpy(stats, &p->stats, sizeof(p->stats));
+
+ if (clear)
+ memset(&p->stats, 0, sizeof(p->stats));
+
+ return 0;
+}
+
+/*
+ * Summary of port operations
+ */
+struct rte_port_in_ops rte_port_source_ops = {
+ .f_create = rte_port_source_create,
+ .f_free = rte_port_source_free,
+ .f_rx = rte_port_source_rx,
+ .f_stats = rte_port_source_stats_read,
+};
+
+struct rte_port_out_ops rte_port_sink_ops = {
+ .f_create = rte_port_sink_create,
+ .f_free = rte_port_sink_free,
+ .f_tx = rte_port_sink_tx,
+ .f_tx_bulk = rte_port_sink_tx_bulk,
+ .f_flush = rte_port_sink_flush,
+ .f_stats = rte_port_sink_stats_read,
+};
Code Review / deb_dpdk.git / blobdiff