net: Remove the deprecated way of dumping network packets

"-net dump" has been marked as deprecated since QEMU v2.10, since it
only works with the deprecated 'vlan' parameter (or hubs). Network
dumping should be done with "-object filter-dump" nowadays instead.
Since nobody complained so far about the deprecation message, let's
finally get rid of "-net dump" now.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>

2 files changed, 3 insertions, 108 deletions

diff --git a/net/dump.c b/net/dump.c
index 15df9a4973..f16c3545e9 100644
--- a/net/dump.c
+++ b/net/dump.c
@@ -109,7 +109,7 @@ static int net_dump_state_init(DumpState *s, const char *filename,
 
     fd = open(filename, O_CREAT | O_TRUNC | O_WRONLY | O_BINARY, 0644);
     if (fd < 0) {
-        error_setg_errno(errp, errno, "-net dump: can't open %s", filename);
+        error_setg_errno(errp, errno, "net dump: can't open %s", filename);
         return -1;
     }
 
@@ -122,7 +122,7 @@ static int net_dump_state_init(DumpState *s, const char *filename,
     hdr.linktype = 1;
 
     if (write(fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
-        error_setg_errno(errp, errno, "-net dump write error");
+        error_setg_errno(errp, errno, "net dump write error");
         close(fd);
         return -1;
     }
@@ -136,104 +136,6 @@ static int net_dump_state_init(DumpState *s, const char *filename,
     return 0;
 }
 
-/* Dumping via VLAN netclient */
-
-struct DumpNetClient {
-    NetClientState nc;
-    DumpState ds;
-};
-typedef struct DumpNetClient DumpNetClient;
-
-static ssize_t dumpclient_receive(NetClientState *nc, const uint8_t *buf,
-                                  size_t size)
-{
-    DumpNetClient *dc = DO_UPCAST(DumpNetClient, nc, nc);
-    struct iovec iov = {
-        .iov_base = (void *)buf,
-        .iov_len = size
-    };
-
-    return dump_receive_iov(&dc->ds, &iov, 1);
-}
-
-static ssize_t dumpclient_receive_iov(NetClientState *nc,
-                                      const struct iovec *iov, int cnt)
-{
-    DumpNetClient *dc = DO_UPCAST(DumpNetClient, nc, nc);
-
-    return dump_receive_iov(&dc->ds, iov, cnt);
-}
-
-static void dumpclient_cleanup(NetClientState *nc)
-{
-    DumpNetClient *dc = DO_UPCAST(DumpNetClient, nc, nc);
-
-    dump_cleanup(&dc->ds);
-}
-
-static NetClientInfo net_dump_info = {
-    .type = NET_CLIENT_DRIVER_DUMP,
-    .size = sizeof(DumpNetClient),
-    .receive = dumpclient_receive,
-    .receive_iov = dumpclient_receive_iov,
-    .cleanup = dumpclient_cleanup,
-};
-
-int net_init_dump(const Netdev *netdev, const char *name,
-                  NetClientState *peer, Error **errp)
-{
-    int len, rc;
-    const char *file;
-    char def_file[128];
-    const NetdevDumpOptions *dump;
-    NetClientState *nc;
-    DumpNetClient *dnc;
-
-    assert(netdev->type == NET_CLIENT_DRIVER_DUMP);
-    dump = &netdev->u.dump;
-
-    assert(peer);
-
-    error_report("'-net dump' is deprecated. "
-                 "Please use '-object filter-dump' instead.");
-
-    if (dump->has_file) {
-        file = dump->file;
-    } else {
-        int id;
-        int ret;
-
-        ret = net_hub_id_for_client(peer, &id);
-        assert(ret == 0); /* peer must be on a hub */
-
-        snprintf(def_file, sizeof(def_file), "qemu-vlan%d.pcap", id);
-        file = def_file;
-    }
-
-    if (dump->has_len) {
-        if (dump->len > INT_MAX) {
-            error_setg(errp, "invalid length: %"PRIu64, dump->len);
-            return -1;
-        }
-        len = dump->len;
-    } else {
-        len = 65536;
-    }
-
-    nc = qemu_new_net_client(&net_dump_info, peer, "dump", name);
-    snprintf(nc->info_str, sizeof(nc->info_str),
-             "dump to %s (len=%d)", file, len);
-
-    dnc = DO_UPCAST(DumpNetClient, nc, nc);
-    rc = net_dump_state_init(&dnc->ds, file, len, errp);
-    if (rc) {
-        qemu_del_net_client(nc);
-    }
-    return rc;
-}
-
-/* Dumping via filter */
-
 #define TYPE_FILTER_DUMP "filter-dump"
 
 #define FILTER_DUMP(obj) \
diff --git a/net/net.c b/net/net.c
index dd80f1be98..cbd553df84 100644
--- a/net/net.c
+++ b/net/net.c
@@ -63,7 +63,6 @@ static QTAILQ_HEAD(, NetClientState) net_clients;
 const char *host_net_devices[] = {
     "tap",
     "socket",
-    "dump",
 #ifdef CONFIG_NET_BRIDGE
     "bridge",
 #endif
@@ -967,7 +966,6 @@ static int (* const net_client_init_fun[NET_CLIENT_DRIVER__MAX])(
 #ifdef CONFIG_NETMAP
         [NET_CLIENT_DRIVER_NETMAP]    = net_init_netmap,
 #endif
-        [NET_CLIENT_DRIVER_DUMP]      = net_init_dump,
 #ifdef CONFIG_NET_BRIDGE
         [NET_CLIENT_DRIVER_BRIDGE]    = net_init_bridge,
 #endif
@@ -993,8 +991,7 @@ static int net_client_init1(const void *object, bool is_netdev, Error **errp)
         netdev = object;
         name = netdev->id;
 
-        if (netdev->type == NET_CLIENT_DRIVER_DUMP ||
-            netdev->type == NET_CLIENT_DRIVER_NIC ||
+        if (netdev->type == NET_CLIENT_DRIVER_NIC ||
             !net_client_init_fun[netdev->type]) {
             error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type",
                        "a netdev backend type");
@@ -1036,10 +1033,6 @@ static int net_client_init1(const void *object, bool is_netdev, Error **errp)
             legacy.type = NET_CLIENT_DRIVER_VDE;
             legacy.u.vde = opts->u.vde;
             break;
-        case NET_LEGACY_OPTIONS_TYPE_DUMP:
-            legacy.type = NET_CLIENT_DRIVER_DUMP;
-            legacy.u.dump = opts->u.dump;
-            break;
         case NET_LEGACY_OPTIONS_TYPE_BRIDGE:
             legacy.type = NET_CLIENT_DRIVER_BRIDGE;
             legacy.u.bridge = opts->u.bridge;