Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 1 | /* |
| 2 | * QEMU System Emulator |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 24 | #include "config-host.h" |
| 25 | |
| 26 | #include <libvdeplug.h> |
| 27 | |
Paolo Bonzini | 1422e32 | 2012-10-24 08:43:34 +0200 | [diff] [blame] | 28 | #include "net/net.h" |
Paolo Bonzini | a245fc1 | 2012-09-17 18:43:51 +0200 | [diff] [blame] | 29 | #include "clients.h" |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 30 | #include "qemu-common.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 31 | #include "qemu/option.h" |
Liming Wang | 3f124b6 | 2012-12-21 16:56:58 +0800 | [diff] [blame] | 32 | #include "qemu/main-loop.h" |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 33 | |
| 34 | typedef struct VDEState { |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 35 | NetClientState nc; |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 36 | VDECONN *vde; |
| 37 | } VDEState; |
| 38 | |
| 39 | static void vde_to_qemu(void *opaque) |
| 40 | { |
| 41 | VDEState *s = opaque; |
Scott Feldman | d32fcad | 2013-03-18 11:43:44 -0700 | [diff] [blame] | 42 | uint8_t buf[NET_BUFSIZE]; |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 43 | int size; |
| 44 | |
| 45 | size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0); |
| 46 | if (size > 0) { |
Mark McLoughlin | b4e859c | 2009-11-25 18:49:07 +0000 | [diff] [blame] | 47 | qemu_send_packet(&s->nc, buf, size); |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 48 | } |
| 49 | } |
| 50 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 51 | static ssize_t vde_receive(NetClientState *nc, const uint8_t *buf, size_t size) |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 52 | { |
Mark McLoughlin | b4e859c | 2009-11-25 18:49:07 +0000 | [diff] [blame] | 53 | VDEState *s = DO_UPCAST(VDEState, nc, nc); |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 54 | ssize_t ret; |
| 55 | |
| 56 | do { |
| 57 | ret = vde_send(s->vde, (const char *)buf, size, 0); |
| 58 | } while (ret < 0 && errno == EINTR); |
| 59 | |
| 60 | return ret; |
| 61 | } |
| 62 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 63 | static void vde_cleanup(NetClientState *nc) |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 64 | { |
Mark McLoughlin | b4e859c | 2009-11-25 18:49:07 +0000 | [diff] [blame] | 65 | VDEState *s = DO_UPCAST(VDEState, nc, nc); |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 66 | qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL); |
| 67 | vde_close(s->vde); |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 68 | } |
| 69 | |
Mark McLoughlin | b4e859c | 2009-11-25 18:49:07 +0000 | [diff] [blame] | 70 | static NetClientInfo net_vde_info = { |
Laszlo Ersek | 2be64a6 | 2012-07-17 16:17:12 +0200 | [diff] [blame] | 71 | .type = NET_CLIENT_OPTIONS_KIND_VDE, |
Mark McLoughlin | b4e859c | 2009-11-25 18:49:07 +0000 | [diff] [blame] | 72 | .size = sizeof(VDEState), |
| 73 | .receive = vde_receive, |
| 74 | .cleanup = vde_cleanup, |
| 75 | }; |
| 76 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 77 | static int net_vde_init(NetClientState *peer, const char *model, |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 78 | const char *name, const char *sock, |
| 79 | int port, const char *group, int mode) |
| 80 | { |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 81 | NetClientState *nc; |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 82 | VDEState *s; |
Mark McLoughlin | b4e859c | 2009-11-25 18:49:07 +0000 | [diff] [blame] | 83 | VDECONN *vde; |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 84 | char *init_group = (char *)group; |
| 85 | char *init_sock = (char *)sock; |
| 86 | |
| 87 | struct vde_open_args args = { |
| 88 | .port = port, |
| 89 | .group = init_group, |
| 90 | .mode = mode, |
| 91 | }; |
| 92 | |
Mark McLoughlin | b4e859c | 2009-11-25 18:49:07 +0000 | [diff] [blame] | 93 | vde = vde_open(init_sock, (char *)"QEMU", &args); |
| 94 | if (!vde){ |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 95 | return -1; |
| 96 | } |
Mark McLoughlin | b4e859c | 2009-11-25 18:49:07 +0000 | [diff] [blame] | 97 | |
Stefan Hajnoczi | ab5f3f8 | 2012-07-24 16:35:08 +0100 | [diff] [blame] | 98 | nc = qemu_new_net_client(&net_vde_info, peer, model, name); |
Mark McLoughlin | b4e859c | 2009-11-25 18:49:07 +0000 | [diff] [blame] | 99 | |
| 100 | snprintf(nc->info_str, sizeof(nc->info_str), "sock=%s,fd=%d", |
| 101 | sock, vde_datafd(vde)); |
| 102 | |
| 103 | s = DO_UPCAST(VDEState, nc, nc); |
| 104 | |
| 105 | s->vde = vde; |
| 106 | |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 107 | qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s); |
Mark McLoughlin | b4e859c | 2009-11-25 18:49:07 +0000 | [diff] [blame] | 108 | |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 109 | return 0; |
| 110 | } |
| 111 | |
Laszlo Ersek | 1a0c095 | 2012-07-17 16:17:21 +0200 | [diff] [blame] | 112 | int net_init_vde(const NetClientOptions *opts, const char *name, |
Markus Armbruster | a30ecde | 2015-05-15 13:58:50 +0200 | [diff] [blame] | 113 | NetClientState *peer, Error **errp) |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 114 | { |
Markus Armbruster | a30ecde | 2015-05-15 13:58:50 +0200 | [diff] [blame] | 115 | /* FIXME error_setg(errp, ...) on failure */ |
Laszlo Ersek | 4a917c3 | 2012-07-17 16:17:18 +0200 | [diff] [blame] | 116 | const NetdevVdeOptions *vde; |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 117 | |
Laszlo Ersek | 4a917c3 | 2012-07-17 16:17:18 +0200 | [diff] [blame] | 118 | assert(opts->kind == NET_CLIENT_OPTIONS_KIND_VDE); |
| 119 | vde = opts->vde; |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 120 | |
Laszlo Ersek | 4a917c3 | 2012-07-17 16:17:18 +0200 | [diff] [blame] | 121 | /* missing optional values have been initialized to "all bits zero" */ |
Stefan Hajnoczi | d33d93b | 2012-07-24 16:35:05 +0100 | [diff] [blame] | 122 | if (net_vde_init(peer, "vde", name, vde->sock, vde->port, vde->group, |
Laszlo Ersek | 4a917c3 | 2012-07-17 16:17:18 +0200 | [diff] [blame] | 123 | vde->has_mode ? vde->mode : 0700) == -1) { |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 124 | return -1; |
| 125 | } |
| 126 | |
Mark McLoughlin | 5c361cc | 2009-11-25 18:48:55 +0000 | [diff] [blame] | 127 | return 0; |
| 128 | } |