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1 | 5c361cc3 | Mark McLoughlin | /*
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2 | 5c361cc3 | Mark McLoughlin | * QEMU System Emulator
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3 | 5c361cc3 | Mark McLoughlin | *
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4 | 5c361cc3 | Mark McLoughlin | * Copyright (c) 2003-2008 Fabrice Bellard
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5 | 5c361cc3 | Mark McLoughlin | *
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6 | 5c361cc3 | Mark McLoughlin | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 5c361cc3 | Mark McLoughlin | * of this software and associated documentation files (the "Software"), to deal
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8 | 5c361cc3 | Mark McLoughlin | * in the Software without restriction, including without limitation the rights
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9 | 5c361cc3 | Mark McLoughlin | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 5c361cc3 | Mark McLoughlin | * copies of the Software, and to permit persons to whom the Software is
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11 | 5c361cc3 | Mark McLoughlin | * furnished to do so, subject to the following conditions:
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12 | 5c361cc3 | Mark McLoughlin | *
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13 | 5c361cc3 | Mark McLoughlin | * The above copyright notice and this permission notice shall be included in
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14 | 5c361cc3 | Mark McLoughlin | * all copies or substantial portions of the Software.
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15 | 5c361cc3 | Mark McLoughlin | *
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16 | 5c361cc3 | Mark McLoughlin | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 5c361cc3 | Mark McLoughlin | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 5c361cc3 | Mark McLoughlin | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 5c361cc3 | Mark McLoughlin | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 5c361cc3 | Mark McLoughlin | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 5c361cc3 | Mark McLoughlin | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 5c361cc3 | Mark McLoughlin | * THE SOFTWARE.
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23 | 5c361cc3 | Mark McLoughlin | */
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24 | 5c361cc3 | Mark McLoughlin | #include "net/vde.h" |
25 | 5c361cc3 | Mark McLoughlin | |
26 | 5c361cc3 | Mark McLoughlin | #include "config-host.h" |
27 | 5c361cc3 | Mark McLoughlin | |
28 | 5c361cc3 | Mark McLoughlin | #include <libvdeplug.h> |
29 | 5c361cc3 | Mark McLoughlin | |
30 | 5c361cc3 | Mark McLoughlin | #include "net.h" |
31 | 5c361cc3 | Mark McLoughlin | #include "qemu-char.h" |
32 | 5c361cc3 | Mark McLoughlin | #include "qemu-common.h" |
33 | 5c361cc3 | Mark McLoughlin | #include "qemu-option.h" |
34 | 5c361cc3 | Mark McLoughlin | #include "sysemu.h" |
35 | 5c361cc3 | Mark McLoughlin | |
36 | 5c361cc3 | Mark McLoughlin | typedef struct VDEState { |
37 | b4e859c6 | Mark McLoughlin | VLANClientState nc; |
38 | 5c361cc3 | Mark McLoughlin | VDECONN *vde; |
39 | 5c361cc3 | Mark McLoughlin | } VDEState; |
40 | 5c361cc3 | Mark McLoughlin | |
41 | 5c361cc3 | Mark McLoughlin | static void vde_to_qemu(void *opaque) |
42 | 5c361cc3 | Mark McLoughlin | { |
43 | 5c361cc3 | Mark McLoughlin | VDEState *s = opaque; |
44 | 5c361cc3 | Mark McLoughlin | uint8_t buf[4096];
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45 | 5c361cc3 | Mark McLoughlin | int size;
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46 | 5c361cc3 | Mark McLoughlin | |
47 | 5c361cc3 | Mark McLoughlin | size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0); |
48 | 5c361cc3 | Mark McLoughlin | if (size > 0) { |
49 | b4e859c6 | Mark McLoughlin | qemu_send_packet(&s->nc, buf, size); |
50 | 5c361cc3 | Mark McLoughlin | } |
51 | 5c361cc3 | Mark McLoughlin | } |
52 | 5c361cc3 | Mark McLoughlin | |
53 | b4e859c6 | Mark McLoughlin | static ssize_t vde_receive(VLANClientState *nc, const uint8_t *buf, size_t size) |
54 | 5c361cc3 | Mark McLoughlin | { |
55 | b4e859c6 | Mark McLoughlin | VDEState *s = DO_UPCAST(VDEState, nc, nc); |
56 | 5c361cc3 | Mark McLoughlin | ssize_t ret; |
57 | 5c361cc3 | Mark McLoughlin | |
58 | 5c361cc3 | Mark McLoughlin | do {
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59 | 5c361cc3 | Mark McLoughlin | ret = vde_send(s->vde, (const char *)buf, size, 0); |
60 | 5c361cc3 | Mark McLoughlin | } while (ret < 0 && errno == EINTR); |
61 | 5c361cc3 | Mark McLoughlin | |
62 | 5c361cc3 | Mark McLoughlin | return ret;
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63 | 5c361cc3 | Mark McLoughlin | } |
64 | 5c361cc3 | Mark McLoughlin | |
65 | b4e859c6 | Mark McLoughlin | static void vde_cleanup(VLANClientState *nc) |
66 | 5c361cc3 | Mark McLoughlin | { |
67 | b4e859c6 | Mark McLoughlin | VDEState *s = DO_UPCAST(VDEState, nc, nc); |
68 | 5c361cc3 | Mark McLoughlin | qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL); |
69 | 5c361cc3 | Mark McLoughlin | vde_close(s->vde); |
70 | 5c361cc3 | Mark McLoughlin | } |
71 | 5c361cc3 | Mark McLoughlin | |
72 | b4e859c6 | Mark McLoughlin | static NetClientInfo net_vde_info = {
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73 | b4e859c6 | Mark McLoughlin | .type = NET_CLIENT_TYPE_VDE, |
74 | b4e859c6 | Mark McLoughlin | .size = sizeof(VDEState),
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75 | b4e859c6 | Mark McLoughlin | .receive = vde_receive, |
76 | b4e859c6 | Mark McLoughlin | .cleanup = vde_cleanup, |
77 | b4e859c6 | Mark McLoughlin | }; |
78 | b4e859c6 | Mark McLoughlin | |
79 | 5c361cc3 | Mark McLoughlin | static int net_vde_init(VLANState *vlan, const char *model, |
80 | 5c361cc3 | Mark McLoughlin | const char *name, const char *sock, |
81 | 5c361cc3 | Mark McLoughlin | int port, const char *group, int mode) |
82 | 5c361cc3 | Mark McLoughlin | { |
83 | b4e859c6 | Mark McLoughlin | VLANClientState *nc; |
84 | 5c361cc3 | Mark McLoughlin | VDEState *s; |
85 | b4e859c6 | Mark McLoughlin | VDECONN *vde; |
86 | 5c361cc3 | Mark McLoughlin | char *init_group = (char *)group; |
87 | 5c361cc3 | Mark McLoughlin | char *init_sock = (char *)sock; |
88 | 5c361cc3 | Mark McLoughlin | |
89 | 5c361cc3 | Mark McLoughlin | struct vde_open_args args = {
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90 | 5c361cc3 | Mark McLoughlin | .port = port, |
91 | 5c361cc3 | Mark McLoughlin | .group = init_group, |
92 | 5c361cc3 | Mark McLoughlin | .mode = mode, |
93 | 5c361cc3 | Mark McLoughlin | }; |
94 | 5c361cc3 | Mark McLoughlin | |
95 | b4e859c6 | Mark McLoughlin | vde = vde_open(init_sock, (char *)"QEMU", &args); |
96 | b4e859c6 | Mark McLoughlin | if (!vde){
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97 | 5c361cc3 | Mark McLoughlin | return -1; |
98 | 5c361cc3 | Mark McLoughlin | } |
99 | b4e859c6 | Mark McLoughlin | |
100 | b4e859c6 | Mark McLoughlin | nc = qemu_new_net_client(&net_vde_info, vlan, NULL, model, name);
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101 | b4e859c6 | Mark McLoughlin | |
102 | b4e859c6 | Mark McLoughlin | snprintf(nc->info_str, sizeof(nc->info_str), "sock=%s,fd=%d", |
103 | b4e859c6 | Mark McLoughlin | sock, vde_datafd(vde)); |
104 | b4e859c6 | Mark McLoughlin | |
105 | b4e859c6 | Mark McLoughlin | s = DO_UPCAST(VDEState, nc, nc); |
106 | b4e859c6 | Mark McLoughlin | |
107 | b4e859c6 | Mark McLoughlin | s->vde = vde; |
108 | b4e859c6 | Mark McLoughlin | |
109 | 5c361cc3 | Mark McLoughlin | qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
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110 | b4e859c6 | Mark McLoughlin | |
111 | 5c361cc3 | Mark McLoughlin | return 0; |
112 | 5c361cc3 | Mark McLoughlin | } |
113 | 5c361cc3 | Mark McLoughlin | |
114 | 5c361cc3 | Mark McLoughlin | int net_init_vde(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan) |
115 | 5c361cc3 | Mark McLoughlin | { |
116 | 5c361cc3 | Mark McLoughlin | const char *sock; |
117 | 5c361cc3 | Mark McLoughlin | const char *group; |
118 | 5c361cc3 | Mark McLoughlin | int port, mode;
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119 | 5c361cc3 | Mark McLoughlin | |
120 | 5c361cc3 | Mark McLoughlin | sock = qemu_opt_get(opts, "sock");
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121 | 5c361cc3 | Mark McLoughlin | group = qemu_opt_get(opts, "group");
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122 | 5c361cc3 | Mark McLoughlin | |
123 | 5c361cc3 | Mark McLoughlin | port = qemu_opt_get_number(opts, "port", 0); |
124 | 5c361cc3 | Mark McLoughlin | mode = qemu_opt_get_number(opts, "mode", 0700); |
125 | 5c361cc3 | Mark McLoughlin | |
126 | 5c361cc3 | Mark McLoughlin | if (net_vde_init(vlan, "vde", name, sock, port, group, mode) == -1) { |
127 | 5c361cc3 | Mark McLoughlin | return -1; |
128 | 5c361cc3 | Mark McLoughlin | } |
129 | 5c361cc3 | Mark McLoughlin | |
130 | 5c361cc3 | Mark McLoughlin | return 0; |
131 | 5c361cc3 | Mark McLoughlin | } |