diff options
author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/net/vde.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/net/vde.c')
-rw-r--r-- | qemu/net/vde.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/qemu/net/vde.c b/qemu/net/vde.c new file mode 100644 index 000000000..dacaa64b4 --- /dev/null +++ b/qemu/net/vde.c @@ -0,0 +1,128 @@ +/* + * 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 "config-host.h" + +#include <libvdeplug.h> + +#include "net/net.h" +#include "clients.h" +#include "qemu-common.h" +#include "qemu/option.h" +#include "qemu/main-loop.h" + +typedef struct VDEState { + NetClientState nc; + VDECONN *vde; +} VDEState; + +static void vde_to_qemu(void *opaque) +{ + VDEState *s = opaque; + uint8_t buf[NET_BUFSIZE]; + int size; + + size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0); + if (size > 0) { + qemu_send_packet(&s->nc, buf, size); + } +} + +static ssize_t vde_receive(NetClientState *nc, const uint8_t *buf, size_t size) +{ + VDEState *s = DO_UPCAST(VDEState, nc, nc); + 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(NetClientState *nc) +{ + VDEState *s = DO_UPCAST(VDEState, nc, nc); + qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL); + vde_close(s->vde); +} + +static NetClientInfo net_vde_info = { + .type = NET_CLIENT_OPTIONS_KIND_VDE, + .size = sizeof(VDEState), + .receive = vde_receive, + .cleanup = vde_cleanup, +}; + +static int net_vde_init(NetClientState *peer, const char *model, + const char *name, const char *sock, + int port, const char *group, int mode) +{ + NetClientState *nc; + VDEState *s; + VDECONN *vde; + char *init_group = (char *)group; + char *init_sock = (char *)sock; + + struct vde_open_args args = { + .port = port, + .group = init_group, + .mode = mode, + }; + + vde = vde_open(init_sock, (char *)"QEMU", &args); + if (!vde){ + return -1; + } + + nc = qemu_new_net_client(&net_vde_info, peer, model, name); + + snprintf(nc->info_str, sizeof(nc->info_str), "sock=%s,fd=%d", + sock, vde_datafd(vde)); + + s = DO_UPCAST(VDEState, nc, nc); + + s->vde = vde; + + qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s); + + return 0; +} + +int net_init_vde(const NetClientOptions *opts, const char *name, + NetClientState *peer, Error **errp) +{ + /* FIXME error_setg(errp, ...) on failure */ + const NetdevVdeOptions *vde; + + assert(opts->kind == NET_CLIENT_OPTIONS_KIND_VDE); + vde = opts->vde; + + /* missing optional values have been initialized to "all bits zero" */ + if (net_vde_init(peer, "vde", name, vde->sock, vde->port, vde->group, + vde->has_mode ? vde->mode : 0700) == -1) { + return -1; + } + + return 0; +} |