net: move dump backend code from net.c to net/dump.c

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 1 insertions, 126 deletions

diff --git a/net.c b/net.c
index 765cd2c87..5f225fde7 100644
--- a/net.c
+++ b/net.c
@@ -90,6 +90,7 @@
 #include "net.h"
 #include "net/tap.h"
 #include "net/socket.h"
+#include "net/dump.h"
 #include "net/slirp.h"
 #include "net/vde.h"
 #include "monitor.h"
@@ -717,110 +718,6 @@ qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt)
     return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
 }
 
-typedef struct DumpState {
-    VLANClientState *pcap_vc;
-    int fd;
-    int pcap_caplen;
-} DumpState;
-
-#define PCAP_MAGIC 0xa1b2c3d4
-
-struct pcap_file_hdr {
-    uint32_t magic;
-    uint16_t version_major;
-    uint16_t version_minor;
-    int32_t thiszone;
-    uint32_t sigfigs;
-    uint32_t snaplen;
-    uint32_t linktype;
-};
-
-struct pcap_sf_pkthdr {
-    struct {
-        int32_t tv_sec;
-        int32_t tv_usec;
-    } ts;
-    uint32_t caplen;
-    uint32_t len;
-};
-
-static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
-{
-    DumpState *s = vc->opaque;
-    struct pcap_sf_pkthdr hdr;
-    int64_t ts;
-    int caplen;
-
-    /* Early return in case of previous error. */
-    if (s->fd < 0) {
-        return size;
-    }
-
-    ts = muldiv64(qemu_get_clock(vm_clock), 1000000, get_ticks_per_sec());
-    caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
-
-    hdr.ts.tv_sec = ts / 1000000;
-    hdr.ts.tv_usec = ts % 1000000;
-    hdr.caplen = caplen;
-    hdr.len = size;
-    if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
-        write(s->fd, buf, caplen) != caplen) {
-        qemu_log("-net dump write error - stop dump\n");
-        close(s->fd);
-        s->fd = -1;
-    }
-
-    return size;
-}
-
-static void net_dump_cleanup(VLANClientState *vc)
-{
-    DumpState *s = vc->opaque;
-
-    close(s->fd);
-    qemu_free(s);
-}
-
-static int net_dump_init(VLANState *vlan, const char *device,
-                         const char *name, const char *filename, int len)
-{
-    struct pcap_file_hdr hdr;
-    DumpState *s;
-
-    s = qemu_malloc(sizeof(DumpState));
-
-    s->fd = open(filename, O_CREAT | O_WRONLY | O_BINARY, 0644);
-    if (s->fd < 0) {
-        qemu_error("-net dump: can't open %s\n", filename);
-        return -1;
-    }
-
-    s->pcap_caplen = len;
-
-    hdr.magic = PCAP_MAGIC;
-    hdr.version_major = 2;
-    hdr.version_minor = 4;
-    hdr.thiszone = 0;
-    hdr.sigfigs = 0;
-    hdr.snaplen = s->pcap_caplen;
-    hdr.linktype = 1;
-
-    if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
-        qemu_error("-net dump write error: %s\n", strerror(errno));
-        close(s->fd);
-        qemu_free(s);
-        return -1;
-    }
-
-    s->pcap_vc = qemu_new_vlan_client(NET_CLIENT_TYPE_DUMP,
-                                      vlan, NULL, device, name, NULL,
-                                      dump_receive, NULL, NULL,
-                                      net_dump_cleanup, s);
-    snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
-             "dump to %s (len=%d)", filename, len);
-    return 0;
-}
-
 /* find or alloc a new VLAN */
 VLANState *qemu_find_vlan(int id, int allocate)
 {
@@ -1000,28 +897,6 @@ static int net_init_nic(QemuOpts *opts,
     return idx;
 }
 
-static int net_init_dump(QemuOpts *opts,
-                         Monitor *mon,
-                         const char *name,
-                         VLANState *vlan)
-{
-    int len;
-    const char *file;
-    char def_file[128];
-
-    assert(vlan);
-
-    file = qemu_opt_get(opts, "file");
-    if (!file) {
-        snprintf(def_file, sizeof(def_file), "qemu-vlan%d.pcap", vlan->id);
-        file = def_file;
-    }
-
-    len = qemu_opt_get_size(opts, "len", 65536);
-
-    return net_dump_init(vlan, "dump", name, file, len);
-}
-
 #define NET_COMMON_PARAMS_DESC                     \
     {                                              \
         .name = "type",                            \