diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/vde.c | 124 | ||||
| -rw-r--r-- | net/vde.h | 36 |
2 files changed, 160 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; +} diff --git a/net/vde.h b/net/vde.h new file mode 100644 index 0000000000..3e6ca3e876 --- /dev/null +++ b/net/vde.h @@ -0,0 +1,36 @@ +/* + * 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. + */ +#ifndef QEMU_NET_VDE_H +#define QEMU_NET_VDE_H + +#include "qemu-common.h" +#include "qemu-option.h" + +#ifdef CONFIG_VDE + +int net_init_vde(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan); + +#endif /* CONFIG_VDE */ + +#endif /* QEMU_NET_VDE_H */ |