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authorMark McLoughlin <markmc@redhat.com>2009-11-25 18:48:55 +0000
committerAnthony Liguori <aliguori@us.ibm.com>2009-12-03 09:41:28 -0600
commit5c361cc3225bd415720452a031a19dc8d9efad45 (patch)
treef33ecc0e3fea9955d788923ca6b70db07f0a1248 /net/vde.c
parent68ac40d2c6ce453df9b7fcf546d806345f653433 (diff)
net: move vde code from net.c to net/vde.c
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'net/vde.c')
-rw-r--r--net/vde.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/net/vde.c b/net/vde.c
new file mode 100644
index 0000000000..4d09967fd9
--- /dev/null
+++ b/net/vde.c
@@ -0,0 +1,124 @@
+/*
+ * QEMU System Emulator
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "net/vde.h"
+
+#include "config-host.h"
+
+#include <libvdeplug.h>
+
+#include "net.h"
+#include "qemu-char.h"
+#include "qemu-common.h"
+#include "qemu-option.h"
+#include "sysemu.h"
+
+typedef struct VDEState {
+ VLANClientState *vc;
+ VDECONN *vde;
+} VDEState;
+
+static void vde_to_qemu(void *opaque)
+{
+ VDEState *s = opaque;
+ uint8_t buf[4096];
+ int size;
+
+ size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
+ if (size > 0) {
+ qemu_send_packet(s->vc, buf, size);
+ }
+}
+
+static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
+{
+ VDEState *s = vc->opaque;
+ ssize_t ret;
+
+ do {
+ ret = vde_send(s->vde, (const char *)buf, size, 0);
+ } while (ret < 0 && errno == EINTR);
+
+ return ret;
+}
+
+static void vde_cleanup(VLANClientState *vc)
+{
+ VDEState *s = vc->opaque;
+ qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
+ vde_close(s->vde);
+ qemu_free(s);
+}
+
+static int net_vde_init(VLANState *vlan, const char *model,
+ const char *name, const char *sock,
+ int port, const char *group, int mode)
+{
+ VDEState *s;
+ char *init_group = (char *)group;
+ char *init_sock = (char *)sock;
+
+ struct vde_open_args args = {
+ .port = port,
+ .group = init_group,
+ .mode = mode,
+ };
+
+ s = qemu_mallocz(sizeof(VDEState));
+ s->vde = vde_open(init_sock, (char *)"QEMU", &args);
+ if (!s->vde){
+ free(s);
+ return -1;
+ }
+ s->vc = qemu_new_vlan_client(NET_CLIENT_TYPE_VDE,
+ vlan, NULL, model, name, NULL,
+ vde_receive, NULL, NULL,
+ vde_cleanup, s);
+ qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
+ snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
+ sock, vde_datafd(s->vde));
+ return 0;
+}
+
+int net_init_vde(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan)
+{
+ const char *sock;
+ const char *group;
+ int port, mode;
+
+ sock = qemu_opt_get(opts, "sock");
+ group = qemu_opt_get(opts, "group");
+
+ port = qemu_opt_get_number(opts, "port", 0);
+ mode = qemu_opt_get_number(opts, "mode", 0700);
+
+ if (net_vde_init(vlan, "vde", name, sock, port, group, mode) == -1) {
+ return -1;
+ }
+
+ if (vlan) {
+ vlan->nb_host_devs++;
+ }
+
+ return 0;
+}