Use the new port mirror API instead of pdump.

Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
---
 app/dumpcap/main.c      | 443 +++++++++++++++++++++++++++++++++-------
 app/dumpcap/meson.build |   2 +-
 2 files changed, 373 insertions(+), 72 deletions(-)

diff --git a/app/dumpcap/main.c b/app/dumpcap/main.c
index 3d3c0dbc66..5a8c8e4479 100644
--- a/app/dumpcap/main.c
+++ b/app/dumpcap/main.c
@@ -36,8 +36,6 @@
 #include <rte_mbuf.h>
 #include <rte_mempool.h>
 #include <rte_pcapng.h>
-#include <rte_pdump.h>
-#include <rte_ring.h>
 #include <rte_string_fns.h>
 #include <rte_thread.h>
 #include <rte_time.h>
@@ -92,16 +90,28 @@ struct capture_options {
 struct interface {
        TAILQ_ENTRY(interface) next;
        uint16_t port;
+       struct rte_bpf *filter;
+       uint64_t filteraccept;
        struct capture_options opts;
-       struct rte_bpf_prm *bpf_prm;
        char name[RTE_ETH_NAME_MAX_LEN];
 
+       struct rte_eth_stats start_stats;
        const char *ifname;
        const char *ifdescr;
 };
 
+static int timestamp_dynfield = -1;
+static uint64_t timestamp_dynflag;
+static int mirror_origin_dynfield = -1;
+static uint64_t mirror_origin_dynflag;
+static uint64_t mirror_ingress_dynflag;
+static uint64_t mirror_egress_dynflag;
+
+static bool filtering;
+
 TAILQ_HEAD(interface_list, interface);
 static struct interface_list interfaces = TAILQ_HEAD_INITIALIZER(interfaces);
+static struct interface *port2intf[RTE_MAX_ETHPORTS];
 
 /* Can do either pcap or pcapng format output */
 typedef union {
@@ -239,14 +249,16 @@ static void find_interfaces(void)
 
        TAILQ_FOREACH(intf, &interfaces, next) {
                /* if name is valid then just record port */
-               if (rte_eth_dev_get_port_by_name(intf->name, &intf->port) == 0)
-                       continue;
+               if (rte_eth_dev_get_port_by_name(intf->name, &intf->port) != 0) 
{
+                       /* maybe got passed port number string as name */
+                       intf->port = get_uint(intf->name, "port_number", 
UINT16_MAX);
+                       if (rte_eth_dev_get_name_by_port(intf->port, 
intf->name) < 0)
+                               rte_exit(EXIT_FAILURE, "Invalid port number 
%u\n",
+                                        intf->port);
+               }
 
-               /* maybe got passed port number string as name */
-               intf->port = get_uint(intf->name, "port_number", UINT16_MAX);
-               if (rte_eth_dev_get_name_by_port(intf->port, intf->name) < 0)
-                       rte_exit(EXIT_FAILURE, "Invalid port number %u\n",
-                                intf->port);
+               if (rte_eth_stats_get(intf->port, &intf->start_stats) < 0)
+                       rte_exit(EXIT_FAILURE, "Could not read stats for port 
%u\n", intf->port);
        }
 }
 
@@ -266,6 +278,10 @@ static void set_default_interface(void)
 
                intf = add_interface(name);
                intf->port = p;
+
+               if (rte_eth_stats_get(intf->port, &intf->start_stats) < 0)
+                       rte_exit(EXIT_FAILURE,
+                                "Could not read stats for port %u\n", 
intf->port);
                return;
        }
        rte_exit(EXIT_FAILURE, "No usable interfaces found\n");
@@ -295,10 +311,17 @@ static void compile_filters(void)
                struct bpf_program bf;
                pcap_t *pcap;
 
+               /* cache for filter packets */
+               port2intf[intf->port] = intf;
+
+               if (intf->opts.filter == NULL)
+                       continue;
+
                pcap = pcap_open_dead(DLT_EN10MB, intf->opts.snap_len);
                if (!pcap)
                        rte_exit(EXIT_FAILURE, "can not open pcap\n");
 
+
                if (pcap_compile(pcap, &bf, intf->opts.filter,
                                 1, PCAP_NETMASK_UNKNOWN) != 0) {
                        fprintf(stderr,
@@ -316,7 +339,7 @@ static void compile_filters(void)
                                 rte_strerror(rte_errno), rte_errno);
 
                if (dump_bpf) {
-                       printf("cBPF program (%u insns)\n", bf.bf_len);
+                       printf("cops program (%u insns)\n", bf.bf_len);
                        bpf_dump(&bf, 1);
                        printf("\neBPF program (%u insns)\n",
                               bpf_prm->nb_ins);
@@ -324,11 +347,18 @@ static void compile_filters(void)
                        exit(0);
                }
 
-               intf->bpf_prm = bpf_prm;
+
+               intf->filter = rte_bpf_load(bpf_prm);
+               if (intf->filter == NULL)
+                       rte_exit(EXIT_FAILURE,
+                                "BPF load failed '%s'\n%s(%d)\n",
+                                intf->name, rte_strerror(rte_errno), 
rte_errno);
 
                /* Don't care about original program any more */
                pcap_freecode(&bf);
                pcap_close(pcap);
+
+               filtering = true;
        }
 }
 
@@ -518,13 +548,12 @@ static void statistics_loop(void)
 }
 
 static void
-cleanup_pdump_resources(void)
+disable_mirror_ports(uint16_t mirror_port)
 {
        struct interface *intf;
 
        TAILQ_FOREACH(intf, &interfaces, next) {
-               rte_pdump_disable(intf->port,
-                                 RTE_PDUMP_ALL_QUEUES, RTE_PDUMP_FLAG_RXTX);
+               rte_eth_remove_mirror(intf->port, mirror_port);
                if (intf->opts.promisc_mode)
                        rte_eth_promiscuous_disable(intf->port);
        }
@@ -552,7 +581,6 @@ enable_primary_monitor(void)
 {
        int ret;
 
-       /* Once primary exits, so will pdump. */
        ret = rte_eal_alarm_set(MONITOR_INTERVAL, monitor_primary, NULL);
        if (ret < 0)
                fprintf(stderr, "Fail to enable monitor:%d\n", ret);
@@ -571,23 +599,24 @@ disable_primary_monitor(void)
 static void
 report_packet_stats(dumpcap_out_t out)
 {
-       struct rte_pdump_stats pdump_stats;
        struct interface *intf;
-       uint64_t ifrecv, ifdrop;
-       double percent;
 
        fputc('\n', stderr);
+
        TAILQ_FOREACH(intf, &interfaces, next) {
-               if (rte_pdump_stats(intf->port, &pdump_stats) < 0)
+               uint64_t ifrecv, ifdrop;
+               struct rte_eth_stats stats;
+               double percent;
+
+               if (rte_eth_stats_get(intf->port, &stats) < 0)
                        continue;
 
-               /* do what Wiretap does */
-               ifrecv = pdump_stats.accepted + pdump_stats.filtered;
-               ifdrop = pdump_stats.nombuf + pdump_stats.ringfull;
+               ifrecv = stats.ipackets - intf->start_stats.ipackets;
+               ifdrop = (stats.rx_nombuf - intf->start_stats.rx_nombuf)
+                       + (stats.imissed - intf->start_stats.imissed);
 
                if (use_pcapng)
-                       rte_pcapng_write_stats(out.pcapng, intf->port,
-                                              ifrecv, ifdrop, NULL);
+                       rte_pcapng_write_stats(out.pcapng, intf->port, ifrecv, 
ifdrop, NULL);
 
                if (ifrecv == 0)
                        percent = 0;
@@ -668,12 +697,21 @@ static void dpdk_init(void)
                rte_exit(EXIT_FAILURE, "Can not restore original CPU 
affinity\n");
 }
 
-/* Create packet ring shared between callbacks and process */
-static struct rte_ring *create_ring(void)
+/* Create ring port to redirect packet to.
+ * This could be much simpler if the ring PMD API (rte_eth_from_rings)
+ * worked from a secondary process, but it doesn't.
+ */
+static struct rte_ring *
+create_ring_dev(char *vdev_name, uint16_t *mirror_port)
 {
-       struct rte_ring *ring;
+       struct rte_eth_dev_owner owner = { 0 };
+       struct rte_eth_conf dev_conf = { 0 };
+       struct rte_ring *ring = NULL;
        char ring_name[RTE_RING_NAMESIZE];
+       char vdev_args[128];
        size_t size, log2;
+       uint16_t port;
+       int ret;
 
        /* Find next power of 2 >= size. */
        size = ring_size;
@@ -686,17 +724,59 @@ static struct rte_ring *create_ring(void)
                ring_size = size;
        }
 
-       /* Want one ring per invocation of program */
-       snprintf(ring_name, sizeof(ring_name),
-                "dumpcap-%d", getpid());
+       /* Use owner as unique Id for ring and to isolate */
+       ret = rte_eth_dev_owner_new(&owner.id);
+       if (ret < 0)
+               rte_exit(EXIT_FAILURE, "rte_eth_dev_owner_new failed: %s\n",
+                        strerror(-ret));
 
-       ring = rte_ring_create(ring_name, ring_size,
-                              rte_socket_id(), 0);
+       /* Give the vdev a unique name */
+       snprintf(ring_name, sizeof(ring_name), "dumpcap%"PRIu64, owner.id);
+       ring = rte_ring_create(ring_name, ring_size, rte_socket_id(),
+                              RING_F_MP_RTS_ENQ | RING_F_SC_DEQ);
        if (ring == NULL)
                rte_exit(EXIT_FAILURE, "Could not create ring :%s\n",
                         rte_strerror(rte_errno));
 
+       strlcpy(owner.name, ring_name, sizeof(owner.name));
+
+       snprintf(vdev_name, RTE_DEV_NAME_MAX_LEN, "net_ring-dumpcap%"PRIu64, 
owner.id);
+       snprintf(vdev_args, sizeof(vdev_args),"ring=%s", ring_name);
+
+       if (rte_eal_hotplug_add("vdev", vdev_name, vdev_args) < 0)
+               rte_exit(EXIT_FAILURE,
+                        "rte_eal_hotplug_add of %s failed:%s\n",
+                        vdev_name, rte_strerror(rte_errno));
+
+       ret = rte_eth_dev_get_port_by_name(vdev_name, &port);
+       if (ret != 0) {
+               fprintf(stderr, "Could not port for %s: %s\n",
+                       vdev_name, strerror(-ret));
+               goto unplug;
+       }
+
+       ret = rte_eth_dev_owner_set(port, &owner);
+       if (ret != 0) {
+               fprintf(stderr, "Could not set owner for port for %u: %s\n",
+                       port, strerror(-ret));
+               goto unplug;
+       }
+
+       ret = rte_eth_dev_configure(port, 1, 1, &dev_conf);
+       if (ret < 0) {
+               fprintf(stderr, "Could not configure port %u: %s\n",
+                       port, strerror(-ret));
+               goto unplug;
+       }
+
+       *mirror_port = port;
        return ring;
+
+unplug:
+       rte_eal_hotplug_remove("vdev", vdev_name);
+       rte_ring_free(ring);
+       rte_eal_cleanup();
+       exit(EXIT_FAILURE);
 }
 
 static struct rte_mempool *create_mempool(void)
@@ -796,7 +876,7 @@ static dumpcap_out_t create_output(void)
                                           version(), capture_comment);
                if (ret.pcapng == NULL)
                        rte_exit(EXIT_FAILURE, "pcapng_fdopen failed: %s\n",
-                                strerror(rte_errno));
+                                rte_strerror(rte_errno));
                free(os);
 
                TAILQ_FOREACH(intf, &interfaces, next) {
@@ -823,37 +903,32 @@ static dumpcap_out_t create_output(void)
        return ret;
 }
 
-static void enable_pdump(struct rte_ring *r, struct rte_mempool *mp)
+static int enable_mirror(uint16_t mirror_port, struct rte_mempool *mpool)
 {
        struct interface *intf;
        unsigned int count = 0;
-       uint32_t flags;
        int ret;
 
-       flags = RTE_PDUMP_FLAG_RXTX;
-       if (use_pcapng)
-               flags |= RTE_PDUMP_FLAG_PCAPNG;
+       ret = rte_eth_dev_start(mirror_port);
+       if (ret < 0)
+               rte_exit(EXIT_FAILURE, "Could not start mirror port %u: %s\n",
+                        mirror_port, strerror(-ret));
 
        TAILQ_FOREACH(intf, &interfaces, next) {
-               ret = rte_pdump_enable_bpf(intf->port, RTE_PDUMP_ALL_QUEUES,
-                                          flags, intf->opts.snap_len,
-                                          r, mp, intf->bpf_prm);
+               struct rte_eth_mirror_conf conf = {
+                       .mp = mpool,
+                       .target = mirror_port,
+                       .snaplen = intf->opts.snap_len,
+                       .flags = RTE_ETH_MIRROR_ORIGIN_FLAG | 
RTE_ETH_MIRROR_TIMESTAMP_FLAG,
+                       .direction = RTE_ETH_MIRROR_DIRECTION_INGRESS |
+                                    RTE_ETH_MIRROR_DIRECTION_EGRESS,
+               };
+
+               ret = rte_eth_add_mirror(intf->port, &conf);
                if (ret < 0) {
-                       const struct interface *intf2;
-
-                       /* unwind any previous enables */
-                       TAILQ_FOREACH(intf2, &interfaces, next) {
-                               if (intf == intf2)
-                                       break;
-                               rte_pdump_disable(intf2->port,
-                                                 RTE_PDUMP_ALL_QUEUES, 
RTE_PDUMP_FLAG_RXTX);
-                               if (intf2->opts.promisc_mode)
-                                       
rte_eth_promiscuous_disable(intf2->port);
-                       }
-                       rte_exit(EXIT_FAILURE,
-                               "Packet dump enable on %u:%s failed %s\n",
-                               intf->port, intf->name,
-                               rte_strerror(rte_errno));
+                       fprintf(stderr, "Port mirror on %u:%s failed %s\n",
+                               intf->port, intf->name, strerror(-ret));
+                       return -1;
                }
 
                if (intf->opts.promisc_mode) {
@@ -868,6 +943,60 @@ static void enable_pdump(struct rte_ring *r, struct 
rte_mempool *mp)
                }
                ++count;
        }
+       return count;
+}
+
+static int setup_mbuf(void)
+{
+       int offset;
+
+       offset = rte_mbuf_dynfield_lookup(RTE_MBUF_DYNFIELD_TIMESTAMP_NAME, 
NULL);
+       if (offset < 0) {
+               fprintf(stderr, "Could not find timestamp dynamic field\n");
+               return -1;
+       }
+       timestamp_dynfield = offset;
+
+       offset = rte_mbuf_dynflag_lookup(RTE_MBUF_DYNFLAG_RX_TIMESTAMP_NAME, 
NULL);
+       if (offset < 0) {
+               fprintf(stderr, "Could not find timestamp flag\n");
+               return -1;
+       }
+       timestamp_dynflag = RTE_BIT64(offset);
+
+       offset = rte_mbuf_dynfield_lookup(RTE_MBUF_DYNFIELD_MIRROR_ORIGIN, 
NULL);
+       if (offset < 0) {
+               fprintf(stderr, "Could not find mirror origin dynamic field\n");
+               return -1;
+       }
+       mirror_origin_dynfield = offset;
+
+       offset = rte_mbuf_dynflag_lookup(RTE_MBUF_DYNFLAG_MIRROR_ORIGIN, NULL);
+       if (offset < 0) {
+               fprintf(stderr, "Could not find mirror origin dynamic flag\n");
+               return -1;
+       }
+       mirror_origin_dynflag = RTE_BIT64(offset);
+
+       offset = rte_mbuf_dynflag_lookup(RTE_MBUF_DYNFLAG_MIRROR_INGRESS, NULL);
+       if (offset < 0) {
+               fprintf(stderr, "Could not find mirror ingress flag\n");
+               return -1;
+       }
+       mirror_ingress_dynflag = RTE_BIT64(offset);
+
+       offset = rte_mbuf_dynflag_lookup(RTE_MBUF_DYNFLAG_MIRROR_EGRESS, NULL);
+       if (offset < 0) {
+               fprintf(stderr, "Could not find mirror egress flag\n");
+               return -1;
+       }
+       mirror_egress_dynflag = RTE_BIT64(offset);
+       return 0;
+}
+
+static void show_capturing(unsigned int count)
+{
+       struct interface *intf;
 
        fputs("Capturing on ", stdout);
        TAILQ_FOREACH(intf, &interfaces, next) {
@@ -898,6 +1027,47 @@ static void show_count(uint64_t count)
        bt = fprintf(stderr, "%"PRIu64" ", count);
 }
 
+static ssize_t
+pcapng_write_packets(rte_pcapng_t *pcapng, struct rte_mbuf *pkts[], uint16_t n)
+{
+       struct rte_mbuf *towrite[BURST_SIZE];
+       unsigned int count = 0;
+
+       for (unsigned int i = 0; i < n; i++) {
+               struct rte_mbuf *m = pkts[i];
+               enum rte_pcapng_direction direction = 
RTE_PCAPNG_DIRECTION_UNKNOWN;
+
+               /* If no origin flag then why did we get this? */
+               if (unlikely(!(m->ol_flags & mirror_origin_dynflag))) {
+                       fprintf(stderr, "Missing origin info in packet\n");
+                       return -1;
+               }
+
+               const struct rte_mbuf_origin *origin
+                       = RTE_MBUF_DYNFIELD(m, mirror_origin_dynfield, 
rte_mbuf_origin_t *);
+
+               if (m->ol_flags & mirror_ingress_dynflag)
+                       direction = RTE_PCAPNG_DIRECTION_IN;
+               else if (m->ol_flags & mirror_egress_dynflag)
+                       direction = RTE_PCAPNG_DIRECTION_OUT;
+
+               uint64_t timestamp;
+               if (m->ol_flags & timestamp_dynflag)
+                       timestamp = *RTE_MBUF_DYNFIELD(m, timestamp_dynfield,
+                                                      rte_mbuf_timestamp_t *);
+               else
+                       timestamp = rte_get_tsc_cycles();
+
+               if (rte_pcapng_insert(m, origin->queue_id, direction, 
origin->original_len,
+                                     timestamp, NULL) < 0)
+                       continue;  /* skip no headroom? */
+
+               towrite[count++] = m;
+       }
+
+       return rte_pcapng_write_packets(pcapng, towrite, count);
+}
+
 /* Write multiple packets in older pcap format */
 static ssize_t
 pcap_write_packets(pcap_dumper_t *dumper,
@@ -930,16 +1100,127 @@ pcap_write_packets(pcap_dumper_t *dumper,
        return total;
 }
 
+/* Do packet filter on incoming packets.
+ * Some issues to note here:
+ *  - would be better to do before putting into ring
+ *    but that causes ethdev to have dependency on BPF.
+ *  - the filter is per-interface and there maybe more than one interface
+ *    combined into the ring. That means filter is executed once
+ *    per packet (not as burst).
+ */
+static unsigned int
+filter_packets(struct rte_mbuf *pkts[], unsigned int n)
+{
+       uint64_t results[BURST_SIZE];
+       uint32_t matches = 0;
+
+       for (unsigned int i = 0; i < n; i++) {
+               struct rte_mbuf *m = pkts[i];
+
+               /* all packets should have origin info, if not just skip */
+               if (unlikely(!(m->ol_flags & mirror_origin_dynflag)))
+                       continue;
+
+               const struct rte_mbuf_origin *origin
+                       = RTE_MBUF_DYNFIELD(m, mirror_origin_dynfield, 
rte_mbuf_origin_t *);
+               uint16_t port_id = origin->port_id;
+
+               if (unlikely(port_id >= RTE_MAX_ETHPORTS))
+                       continue;
+
+               const struct interface *intf = port2intf[port_id];
+               if (intf == NULL || intf->filter == NULL)
+                       continue;
+
+               if (rte_bpf_exec_burst(intf->filter, (void **)&m, &results[i], 
1) == 1)
+                       ++matches;
+       }
+
+       if (matches == n)
+               return n;       /* no packets skipped */
+
+       /* need to shuffle out the skipped packets */
+       unsigned int count = 0;
+       struct rte_mbuf *towrite[BURST_SIZE];
+       for (unsigned int i = 0; i < n; i++) {
+               if (results[i])
+                       towrite[count++] = pkts[i];
+               else
+                       rte_pktmbuf_free(pkts[i]);
+       }
+       memcpy(pkts, towrite, count * sizeof(struct rte_mbuf *));
+       return count;
+}
+
+/* Make sure configuration of mbuf pool has enough headroom for both vlans */
+static_assert(RTE_PKTMBUF_HEADROOM > 2 * sizeof(struct rte_vlan_hdr),
+       "not enough mbuf headroom for vlan insertion");
+
+/*
+ * More general version of rte_vlan_insert()
+ * Note: mbufs are allocated by rte_eth_mirror_burst() from the
+ * pool that was passed when setting up mirror.
+ */
+static void
+vlan_insert(struct rte_mbuf *m, uint16_t ether_type, uint16_t tci)
+{
+       struct rte_ether_hdr *nh, tmph;
+       const struct rte_ether_hdr *oh;
+       struct rte_vlan_hdr *vh;
+
+       RTE_ASSERT(!RTE_MBUF_DIRECT(m));
+       RTE_ASSERT(rte_mbuf_refcnt_read(m) == 1);
+
+       oh = rte_pktmbuf_read(m, 0, sizeof(*oh), &tmph);
+       RTE_ASSERT(oh != NULL);
+
+       /* overlay new header */
+       nh = (struct rte_ether_hdr *)
+               rte_pktmbuf_prepend(m, sizeof(struct rte_vlan_hdr));
+
+       RTE_ASSERT(nh != NULL);
+
+       memmove(nh, oh, 2 * RTE_ETHER_ADDR_LEN);
+       nh->ether_type = rte_cpu_to_be_16(ether_type);
+
+       vh = (struct rte_vlan_hdr *) (nh + 1);
+       vh->vlan_tci = rte_cpu_to_be_16(tci);
+}
+
+/* Filtering and pcap file format require that VLAN not be offloaded */
+static void
+remove_vlan_offload(struct rte_mbuf *pkts[], unsigned int n)
+{
+       unsigned int i;
+
+       for (i = 0; i < n; i++) {
+               struct rte_mbuf *m = pkts[i];
+
+               if (m->ol_flags & mirror_ingress_dynflag) {
+                       if (m->ol_flags & RTE_MBUF_F_RX_VLAN_STRIPPED)
+                               vlan_insert(m, RTE_ETHER_TYPE_VLAN, 
m->vlan_tci);
+                       if (m->ol_flags & RTE_MBUF_F_RX_QINQ_STRIPPED)
+                               vlan_insert(m, RTE_ETHER_TYPE_QINQ, 
m->vlan_tci_outer);
+               }
+               if (m->ol_flags & mirror_egress_dynflag) {
+                       if (m->ol_flags & RTE_MBUF_F_TX_VLAN)
+                               vlan_insert(m, RTE_ETHER_TYPE_VLAN, 
m->vlan_tci);
+                       if (m->ol_flags & RTE_MBUF_F_TX_QINQ)
+                               vlan_insert(m, RTE_ETHER_TYPE_QINQ, 
m->vlan_tci_outer);
+
+               }
+       }
+}
+
 /* Process all packets in ring and dump to capture file */
-static int process_ring(dumpcap_out_t out, struct rte_ring *r)
+static int process_ring(dumpcap_out_t out, struct rte_ring *ring)
 {
        struct rte_mbuf *pkts[BURST_SIZE];
-       unsigned int avail, n;
+       unsigned int n, avail;
        static unsigned int empty_count;
        ssize_t written;
 
-       n = rte_ring_sc_dequeue_burst(r, (void **) pkts, BURST_SIZE,
-                                     &avail);
+       n = rte_ring_sc_dequeue_burst(ring, (void **)pkts, BURST_SIZE, &avail);
        if (n == 0) {
                /* don't consume endless amounts of cpu if idle */
                if (empty_count < SLEEP_THRESHOLD)
@@ -948,11 +1229,18 @@ static int process_ring(dumpcap_out_t out, struct 
rte_ring *r)
                        usleep(10);
                return 0;
        }
-
        empty_count = (avail == 0);
 
+       remove_vlan_offload(pkts, n);
+
+       if (filtering) {
+               n = filter_packets(pkts, n);
+               if (n == 0)
+                       return 0;
+       }
+
        if (use_pcapng)
-               written = rte_pcapng_write_packets(out.pcapng, pkts, n);
+               written = pcapng_write_packets(out.pcapng, pkts, n);
        else
                written = pcap_write_packets(out.dumper, pkts, n);
 
@@ -971,15 +1259,18 @@ static int process_ring(dumpcap_out_t out, struct 
rte_ring *r)
 
 int main(int argc, char **argv)
 {
-       struct rte_ring *r;
        struct rte_mempool *mp;
        struct sigaction action = {
                .sa_flags = SA_RESTART,
                .sa_handler = signal_handler,
        };
        struct sigaction origaction;
+       struct rte_ring *ring = NULL;
+       char vdev_name[RTE_DEV_NAME_MAX_LEN];
+       uint16_t mirror_port = UINT16_MAX;
        dumpcap_out_t out;
        char *p;
+       int ret;
 
        p = strrchr(argv[0], '/');
        if (p == NULL)
@@ -1018,12 +1309,21 @@ int main(int argc, char **argv)
                exit(0);
        }
 
-       r = create_ring();
        mp = create_mempool();
+       ring = create_ring_dev(vdev_name, &mirror_port);
        out = create_output();
 
+       ret = enable_mirror(mirror_port, mp);
+       if (ret < 0)
+               goto cleanup;
+
+       ret = setup_mbuf();
+       if (ret < 0)
+               goto cleanup;
+
+       show_capturing(ret);
+
        start_time = time(NULL);
-       enable_pdump(r, mp);
 
        if (!quiet) {
                fprintf(stderr, "Packets captured: ");
@@ -1031,7 +1331,7 @@ int main(int argc, char **argv)
        }
 
        while (!rte_atomic_load_explicit(&quit_signal, 
rte_memory_order_relaxed)) {
-               if (process_ring(out, r) < 0) {
+               if (process_ring(out, ring) < 0) {
                        fprintf(stderr, "pcapng file write failed; %s\n",
                                strerror(errno));
                        break;
@@ -1048,19 +1348,20 @@ int main(int argc, char **argv)
                        break;
        }
 
-       disable_primary_monitor();
-
        if (rte_eal_primary_proc_alive(NULL))
                report_packet_stats(out);
 
+cleanup:
        if (use_pcapng)
                rte_pcapng_close(out.pcapng);
        else
                pcap_dump_close(out.dumper);
 
-       cleanup_pdump_resources();
+       disable_primary_monitor();
+       disable_mirror_ports(mirror_port);
 
-       rte_ring_free(r);
+       rte_eal_hotplug_remove("vdev", vdev_name);
+       rte_ring_free(ring);
        rte_mempool_free(mp);
 
        return rte_eal_cleanup() ? EXIT_FAILURE : 0;
diff --git a/app/dumpcap/meson.build b/app/dumpcap/meson.build
index 69c016c780..6212291d40 100644
--- a/app/dumpcap/meson.build
+++ b/app/dumpcap/meson.build
@@ -14,4 +14,4 @@ endif
 
 ext_deps += pcap_dep
 sources = files('main.c')
-deps += ['ethdev', 'pdump', 'pcapng', 'bpf']
+deps += ['net_ring', 'ethdev', 'pcapng', 'bpf']
-- 
2.47.2

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