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1 | 63a01ef8 | aliguori | /*
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2 | 63a01ef8 | aliguori | * QEMU System Emulator
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3 | 63a01ef8 | aliguori | *
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4 | 63a01ef8 | aliguori | * Copyright (c) 2003-2008 Fabrice Bellard
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5 | 63a01ef8 | aliguori | *
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6 | 63a01ef8 | aliguori | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 63a01ef8 | aliguori | * of this software and associated documentation files (the "Software"), to deal
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8 | 63a01ef8 | aliguori | * in the Software without restriction, including without limitation the rights
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9 | 63a01ef8 | aliguori | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 63a01ef8 | aliguori | * copies of the Software, and to permit persons to whom the Software is
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11 | 63a01ef8 | aliguori | * furnished to do so, subject to the following conditions:
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12 | 63a01ef8 | aliguori | *
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13 | 63a01ef8 | aliguori | * The above copyright notice and this permission notice shall be included in
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14 | 63a01ef8 | aliguori | * all copies or substantial portions of the Software.
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15 | 63a01ef8 | aliguori | *
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16 | 63a01ef8 | aliguori | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 63a01ef8 | aliguori | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 63a01ef8 | aliguori | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 63a01ef8 | aliguori | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 63a01ef8 | aliguori | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 63a01ef8 | aliguori | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 63a01ef8 | aliguori | * THE SOFTWARE.
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23 | 63a01ef8 | aliguori | */
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24 | d40cdb10 | blueswir1 | #include "config-host.h" |
25 | d40cdb10 | blueswir1 | |
26 | 1422e32d | Paolo Bonzini | #include "net/net.h" |
27 | fd9400b3 | Paolo Bonzini | #include "clients.h" |
28 | fd9400b3 | Paolo Bonzini | #include "hub.h" |
29 | 1422e32d | Paolo Bonzini | #include "net/slirp.h" |
30 | fd9400b3 | Paolo Bonzini | #include "util.h" |
31 | a245fc18 | Paolo Bonzini | |
32 | 83c9089e | Paolo Bonzini | #include "monitor/monitor.h" |
33 | 1df49e04 | Mark McLoughlin | #include "qemu-common.h" |
34 | 1de7afc9 | Paolo Bonzini | #include "qemu/sockets.h" |
35 | 1de7afc9 | Paolo Bonzini | #include "qemu/config-file.h" |
36 | 4b37156c | Luiz Capitulino | #include "qmp-commands.h" |
37 | 75422b0d | Amit Shah | #include "hw/qdev.h" |
38 | 1de7afc9 | Paolo Bonzini | #include "qemu/iov.h" |
39 | 6687b79d | Laszlo Ersek | #include "qapi-visit.h" |
40 | 6687b79d | Laszlo Ersek | #include "qapi/opts-visitor.h" |
41 | 7b1b5d19 | Paolo Bonzini | #include "qapi/dealloc-visitor.h" |
42 | 511d2b14 | blueswir1 | |
43 | 2944e4ec | Stefan Weil | /* Net bridge is currently not supported for W32. */
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44 | 2944e4ec | Stefan Weil | #if !defined(_WIN32)
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45 | 2944e4ec | Stefan Weil | # define CONFIG_NET_BRIDGE
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46 | 2944e4ec | Stefan Weil | #endif
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47 | 2944e4ec | Stefan Weil | |
48 | 4e68f7a0 | Stefan Hajnoczi | static QTAILQ_HEAD(, NetClientState) net_clients;
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49 | 63a01ef8 | aliguori | |
50 | cb4522cc | Gerd Hoffmann | int default_net = 1; |
51 | cb4522cc | Gerd Hoffmann | |
52 | 63a01ef8 | aliguori | /***********************************************************/
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53 | 63a01ef8 | aliguori | /* network device redirectors */
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54 | 63a01ef8 | aliguori | |
55 | 68ac40d2 | Mark McLoughlin | #if defined(DEBUG_NET)
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56 | 63a01ef8 | aliguori | static void hex_dump(FILE *f, const uint8_t *buf, int size) |
57 | 63a01ef8 | aliguori | { |
58 | 63a01ef8 | aliguori | int len, i, j, c;
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59 | 63a01ef8 | aliguori | |
60 | 63a01ef8 | aliguori | for(i=0;i<size;i+=16) { |
61 | 63a01ef8 | aliguori | len = size - i; |
62 | 63a01ef8 | aliguori | if (len > 16) |
63 | 63a01ef8 | aliguori | len = 16;
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64 | 63a01ef8 | aliguori | fprintf(f, "%08x ", i);
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65 | 63a01ef8 | aliguori | for(j=0;j<16;j++) { |
66 | 63a01ef8 | aliguori | if (j < len)
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67 | 63a01ef8 | aliguori | fprintf(f, " %02x", buf[i+j]);
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68 | 63a01ef8 | aliguori | else
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69 | 63a01ef8 | aliguori | fprintf(f, " ");
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70 | 63a01ef8 | aliguori | } |
71 | 63a01ef8 | aliguori | fprintf(f, " ");
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72 | 63a01ef8 | aliguori | for(j=0;j<len;j++) { |
73 | 63a01ef8 | aliguori | c = buf[i+j]; |
74 | 63a01ef8 | aliguori | if (c < ' ' || c > '~') |
75 | 63a01ef8 | aliguori | c = '.';
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76 | 63a01ef8 | aliguori | fprintf(f, "%c", c);
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77 | 63a01ef8 | aliguori | } |
78 | 63a01ef8 | aliguori | fprintf(f, "\n");
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79 | 63a01ef8 | aliguori | } |
80 | 63a01ef8 | aliguori | } |
81 | 63a01ef8 | aliguori | #endif
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82 | 63a01ef8 | aliguori | |
83 | 63a01ef8 | aliguori | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) |
84 | 63a01ef8 | aliguori | { |
85 | 63a01ef8 | aliguori | const char *p, *p1; |
86 | 63a01ef8 | aliguori | int len;
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87 | 63a01ef8 | aliguori | p = *pp; |
88 | 63a01ef8 | aliguori | p1 = strchr(p, sep); |
89 | 63a01ef8 | aliguori | if (!p1)
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90 | 63a01ef8 | aliguori | return -1; |
91 | 63a01ef8 | aliguori | len = p1 - p; |
92 | 63a01ef8 | aliguori | p1++; |
93 | 63a01ef8 | aliguori | if (buf_size > 0) { |
94 | 63a01ef8 | aliguori | if (len > buf_size - 1) |
95 | 63a01ef8 | aliguori | len = buf_size - 1;
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96 | 63a01ef8 | aliguori | memcpy(buf, p, len); |
97 | 63a01ef8 | aliguori | buf[len] = '\0';
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98 | 63a01ef8 | aliguori | } |
99 | 63a01ef8 | aliguori | *pp = p1; |
100 | 63a01ef8 | aliguori | return 0; |
101 | 63a01ef8 | aliguori | } |
102 | 63a01ef8 | aliguori | |
103 | 63a01ef8 | aliguori | int parse_host_port(struct sockaddr_in *saddr, const char *str) |
104 | 63a01ef8 | aliguori | { |
105 | 63a01ef8 | aliguori | char buf[512]; |
106 | 63a01ef8 | aliguori | struct hostent *he;
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107 | 63a01ef8 | aliguori | const char *p, *r; |
108 | 63a01ef8 | aliguori | int port;
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109 | 63a01ef8 | aliguori | |
110 | 63a01ef8 | aliguori | p = str; |
111 | 63a01ef8 | aliguori | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
112 | 63a01ef8 | aliguori | return -1; |
113 | 63a01ef8 | aliguori | saddr->sin_family = AF_INET; |
114 | 63a01ef8 | aliguori | if (buf[0] == '\0') { |
115 | 63a01ef8 | aliguori | saddr->sin_addr.s_addr = 0;
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116 | 63a01ef8 | aliguori | } else {
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117 | cd390083 | blueswir1 | if (qemu_isdigit(buf[0])) { |
118 | 63a01ef8 | aliguori | if (!inet_aton(buf, &saddr->sin_addr))
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119 | 63a01ef8 | aliguori | return -1; |
120 | 63a01ef8 | aliguori | } else {
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121 | 63a01ef8 | aliguori | if ((he = gethostbyname(buf)) == NULL) |
122 | 63a01ef8 | aliguori | return - 1; |
123 | 63a01ef8 | aliguori | saddr->sin_addr = *(struct in_addr *)he->h_addr;
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124 | 63a01ef8 | aliguori | } |
125 | 63a01ef8 | aliguori | } |
126 | 63a01ef8 | aliguori | port = strtol(p, (char **)&r, 0); |
127 | 63a01ef8 | aliguori | if (r == p)
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128 | 63a01ef8 | aliguori | return -1; |
129 | 63a01ef8 | aliguori | saddr->sin_port = htons(port); |
130 | 63a01ef8 | aliguori | return 0; |
131 | 63a01ef8 | aliguori | } |
132 | 63a01ef8 | aliguori | |
133 | 35277d14 | Stefan Hajnoczi | void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]) |
134 | 7cb7434b | aliguori | { |
135 | 35277d14 | Stefan Hajnoczi | snprintf(nc->info_str, sizeof(nc->info_str),
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136 | 4dda4063 | aliguori | "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
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137 | 35277d14 | Stefan Hajnoczi | nc->model, |
138 | 7cb7434b | aliguori | macaddr[0], macaddr[1], macaddr[2], |
139 | 7cb7434b | aliguori | macaddr[3], macaddr[4], macaddr[5]); |
140 | 7cb7434b | aliguori | } |
141 | 7cb7434b | aliguori | |
142 | 76d32cba | Gerd Hoffmann | void qemu_macaddr_default_if_unset(MACAddr *macaddr)
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143 | 76d32cba | Gerd Hoffmann | { |
144 | 76d32cba | Gerd Hoffmann | static int index = 0; |
145 | 76d32cba | Gerd Hoffmann | static const MACAddr zero = { .a = { 0,0,0,0,0,0 } }; |
146 | 76d32cba | Gerd Hoffmann | |
147 | 76d32cba | Gerd Hoffmann | if (memcmp(macaddr, &zero, sizeof(zero)) != 0) |
148 | 76d32cba | Gerd Hoffmann | return;
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149 | 76d32cba | Gerd Hoffmann | macaddr->a[0] = 0x52; |
150 | 76d32cba | Gerd Hoffmann | macaddr->a[1] = 0x54; |
151 | 76d32cba | Gerd Hoffmann | macaddr->a[2] = 0x00; |
152 | 76d32cba | Gerd Hoffmann | macaddr->a[3] = 0x12; |
153 | 76d32cba | Gerd Hoffmann | macaddr->a[4] = 0x34; |
154 | 76d32cba | Gerd Hoffmann | macaddr->a[5] = 0x56 + index++; |
155 | 76d32cba | Gerd Hoffmann | } |
156 | 76d32cba | Gerd Hoffmann | |
157 | d33d93b2 | Stefan Hajnoczi | /**
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158 | d33d93b2 | Stefan Hajnoczi | * Generate a name for net client
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159 | d33d93b2 | Stefan Hajnoczi | *
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160 | d33d93b2 | Stefan Hajnoczi | * Only net clients created with the legacy -net option need this. Naming is
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161 | d33d93b2 | Stefan Hajnoczi | * mandatory for net clients created with -netdev.
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162 | d33d93b2 | Stefan Hajnoczi | */
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163 | 35277d14 | Stefan Hajnoczi | static char *assign_name(NetClientState *nc1, const char *model) |
164 | 676cff29 | aliguori | { |
165 | 35277d14 | Stefan Hajnoczi | NetClientState *nc; |
166 | 676cff29 | aliguori | char buf[256]; |
167 | 676cff29 | aliguori | int id = 0; |
168 | 676cff29 | aliguori | |
169 | 35277d14 | Stefan Hajnoczi | QTAILQ_FOREACH(nc, &net_clients, next) { |
170 | 35277d14 | Stefan Hajnoczi | if (nc == nc1) {
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171 | d33d93b2 | Stefan Hajnoczi | continue;
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172 | 5610c3aa | Mark McLoughlin | } |
173 | d33d93b2 | Stefan Hajnoczi | /* For compatibility only bump id for net clients on a vlan */
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174 | 35277d14 | Stefan Hajnoczi | if (strcmp(nc->model, model) == 0 && |
175 | 35277d14 | Stefan Hajnoczi | net_hub_id_for_client(nc, NULL) == 0) { |
176 | 53e51d85 | Markus Armbruster | id++; |
177 | 53e51d85 | Markus Armbruster | } |
178 | 53e51d85 | Markus Armbruster | } |
179 | 53e51d85 | Markus Armbruster | |
180 | 676cff29 | aliguori | snprintf(buf, sizeof(buf), "%s.%d", model, id); |
181 | 676cff29 | aliguori | |
182 | 7267c094 | Anthony Liguori | return g_strdup(buf);
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183 | 676cff29 | aliguori | } |
184 | 676cff29 | aliguori | |
185 | f7860455 | Jason Wang | static void qemu_net_client_destructor(NetClientState *nc) |
186 | f7860455 | Jason Wang | { |
187 | f7860455 | Jason Wang | g_free(nc); |
188 | f7860455 | Jason Wang | } |
189 | f7860455 | Jason Wang | |
190 | 18a1541a | Jason Wang | static void qemu_net_client_setup(NetClientState *nc, |
191 | 18a1541a | Jason Wang | NetClientInfo *info, |
192 | 18a1541a | Jason Wang | NetClientState *peer, |
193 | 18a1541a | Jason Wang | const char *model, |
194 | f7860455 | Jason Wang | const char *name, |
195 | f7860455 | Jason Wang | NetClientDestructor *destructor) |
196 | 63a01ef8 | aliguori | { |
197 | 35277d14 | Stefan Hajnoczi | nc->info = info; |
198 | 35277d14 | Stefan Hajnoczi | nc->model = g_strdup(model); |
199 | 45460d1a | Mark McLoughlin | if (name) {
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200 | 35277d14 | Stefan Hajnoczi | nc->name = g_strdup(name); |
201 | 45460d1a | Mark McLoughlin | } else {
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202 | 35277d14 | Stefan Hajnoczi | nc->name = assign_name(nc, model); |
203 | 45460d1a | Mark McLoughlin | } |
204 | 5610c3aa | Mark McLoughlin | |
205 | ab5f3f84 | Stefan Hajnoczi | if (peer) {
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206 | ab5f3f84 | Stefan Hajnoczi | assert(!peer->peer); |
207 | 35277d14 | Stefan Hajnoczi | nc->peer = peer; |
208 | 35277d14 | Stefan Hajnoczi | peer->peer = nc; |
209 | d80b9fc6 | Mark McLoughlin | } |
210 | 35277d14 | Stefan Hajnoczi | QTAILQ_INSERT_TAIL(&net_clients, nc, next); |
211 | 63a01ef8 | aliguori | |
212 | 86a77c38 | Zhi Yong Wu | nc->send_queue = qemu_new_net_queue(nc); |
213 | f7860455 | Jason Wang | nc->destructor = destructor; |
214 | 18a1541a | Jason Wang | } |
215 | 18a1541a | Jason Wang | |
216 | 18a1541a | Jason Wang | NetClientState *qemu_new_net_client(NetClientInfo *info, |
217 | 18a1541a | Jason Wang | NetClientState *peer, |
218 | 18a1541a | Jason Wang | const char *model, |
219 | 18a1541a | Jason Wang | const char *name) |
220 | 18a1541a | Jason Wang | { |
221 | 18a1541a | Jason Wang | NetClientState *nc; |
222 | 18a1541a | Jason Wang | |
223 | 18a1541a | Jason Wang | assert(info->size >= sizeof(NetClientState));
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224 | 18a1541a | Jason Wang | |
225 | 18a1541a | Jason Wang | nc = g_malloc0(info->size); |
226 | f7860455 | Jason Wang | qemu_net_client_setup(nc, info, peer, model, name, |
227 | f7860455 | Jason Wang | qemu_net_client_destructor); |
228 | 18a1541a | Jason Wang | |
229 | 35277d14 | Stefan Hajnoczi | return nc;
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230 | 63a01ef8 | aliguori | } |
231 | 63a01ef8 | aliguori | |
232 | ebef2c09 | Mark McLoughlin | NICState *qemu_new_nic(NetClientInfo *info, |
233 | ebef2c09 | Mark McLoughlin | NICConf *conf, |
234 | ebef2c09 | Mark McLoughlin | const char *model, |
235 | ebef2c09 | Mark McLoughlin | const char *name, |
236 | ebef2c09 | Mark McLoughlin | void *opaque)
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237 | ebef2c09 | Mark McLoughlin | { |
238 | 1ceef9f2 | Jason Wang | NetClientState **peers = conf->peers.ncs; |
239 | ebef2c09 | Mark McLoughlin | NICState *nic; |
240 | f6b26cf2 | Jason Wang | int i, queues = MAX(1, conf->queues); |
241 | ebef2c09 | Mark McLoughlin | |
242 | 2be64a68 | Laszlo Ersek | assert(info->type == NET_CLIENT_OPTIONS_KIND_NIC); |
243 | ebef2c09 | Mark McLoughlin | assert(info->size >= sizeof(NICState));
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244 | ebef2c09 | Mark McLoughlin | |
245 | f6b26cf2 | Jason Wang | nic = g_malloc0(info->size + sizeof(NetClientState) * queues);
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246 | f6b26cf2 | Jason Wang | nic->ncs = (void *)nic + info->size;
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247 | ebef2c09 | Mark McLoughlin | nic->conf = conf; |
248 | ebef2c09 | Mark McLoughlin | nic->opaque = opaque; |
249 | ebef2c09 | Mark McLoughlin | |
250 | f6b26cf2 | Jason Wang | for (i = 0; i < queues; i++) { |
251 | f6b26cf2 | Jason Wang | qemu_net_client_setup(&nic->ncs[i], info, peers[i], model, name, |
252 | 1ceef9f2 | Jason Wang | NULL);
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253 | 1ceef9f2 | Jason Wang | nic->ncs[i].queue_index = i; |
254 | 1ceef9f2 | Jason Wang | } |
255 | 1ceef9f2 | Jason Wang | |
256 | ebef2c09 | Mark McLoughlin | return nic;
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257 | ebef2c09 | Mark McLoughlin | } |
258 | ebef2c09 | Mark McLoughlin | |
259 | 1ceef9f2 | Jason Wang | NetClientState *qemu_get_subqueue(NICState *nic, int queue_index)
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260 | 1ceef9f2 | Jason Wang | { |
261 | f6b26cf2 | Jason Wang | return nic->ncs + queue_index;
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262 | 1ceef9f2 | Jason Wang | } |
263 | 1ceef9f2 | Jason Wang | |
264 | b356f76d | Jason Wang | NetClientState *qemu_get_queue(NICState *nic) |
265 | b356f76d | Jason Wang | { |
266 | 1ceef9f2 | Jason Wang | return qemu_get_subqueue(nic, 0); |
267 | b356f76d | Jason Wang | } |
268 | b356f76d | Jason Wang | |
269 | cc1f0f45 | Jason Wang | NICState *qemu_get_nic(NetClientState *nc) |
270 | cc1f0f45 | Jason Wang | { |
271 | 1ceef9f2 | Jason Wang | NetClientState *nc0 = nc - nc->queue_index; |
272 | 1ceef9f2 | Jason Wang | |
273 | f6b26cf2 | Jason Wang | return (NICState *)((void *)nc0 - nc->info->size); |
274 | cc1f0f45 | Jason Wang | } |
275 | cc1f0f45 | Jason Wang | |
276 | cc1f0f45 | Jason Wang | void *qemu_get_nic_opaque(NetClientState *nc)
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277 | cc1f0f45 | Jason Wang | { |
278 | cc1f0f45 | Jason Wang | NICState *nic = qemu_get_nic(nc); |
279 | cc1f0f45 | Jason Wang | |
280 | cc1f0f45 | Jason Wang | return nic->opaque;
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281 | cc1f0f45 | Jason Wang | } |
282 | cc1f0f45 | Jason Wang | |
283 | b20c6b9e | Stefan Hajnoczi | static void qemu_cleanup_net_client(NetClientState *nc) |
284 | 63a01ef8 | aliguori | { |
285 | 35277d14 | Stefan Hajnoczi | QTAILQ_REMOVE(&net_clients, nc, next); |
286 | 63a01ef8 | aliguori | |
287 | cc2a9043 | Andreas Fรคrber | if (nc->info->cleanup) {
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288 | cc2a9043 | Andreas Fรคrber | nc->info->cleanup(nc); |
289 | cc2a9043 | Andreas Fรคrber | } |
290 | a083a89d | Michael S. Tsirkin | } |
291 | 5610c3aa | Mark McLoughlin | |
292 | b20c6b9e | Stefan Hajnoczi | static void qemu_free_net_client(NetClientState *nc) |
293 | a083a89d | Michael S. Tsirkin | { |
294 | 35277d14 | Stefan Hajnoczi | if (nc->send_queue) {
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295 | 35277d14 | Stefan Hajnoczi | qemu_del_net_queue(nc->send_queue); |
296 | a005d073 | Stefan Hajnoczi | } |
297 | 35277d14 | Stefan Hajnoczi | if (nc->peer) {
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298 | 35277d14 | Stefan Hajnoczi | nc->peer->peer = NULL;
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299 | a083a89d | Michael S. Tsirkin | } |
300 | 35277d14 | Stefan Hajnoczi | g_free(nc->name); |
301 | 35277d14 | Stefan Hajnoczi | g_free(nc->model); |
302 | f7860455 | Jason Wang | if (nc->destructor) {
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303 | f7860455 | Jason Wang | nc->destructor(nc); |
304 | f7860455 | Jason Wang | } |
305 | 63a01ef8 | aliguori | } |
306 | 63a01ef8 | aliguori | |
307 | b20c6b9e | Stefan Hajnoczi | void qemu_del_net_client(NetClientState *nc)
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308 | a083a89d | Michael S. Tsirkin | { |
309 | 1ceef9f2 | Jason Wang | NetClientState *ncs[MAX_QUEUE_NUM]; |
310 | 1ceef9f2 | Jason Wang | int queues, i;
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311 | 1ceef9f2 | Jason Wang | |
312 | 1ceef9f2 | Jason Wang | /* If the NetClientState belongs to a multiqueue backend, we will change all
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313 | 1ceef9f2 | Jason Wang | * other NetClientStates also.
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314 | 1ceef9f2 | Jason Wang | */
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315 | 1ceef9f2 | Jason Wang | queues = qemu_find_net_clients_except(nc->name, ncs, |
316 | 1ceef9f2 | Jason Wang | NET_CLIENT_OPTIONS_KIND_NIC, |
317 | 1ceef9f2 | Jason Wang | MAX_QUEUE_NUM); |
318 | 1ceef9f2 | Jason Wang | assert(queues != 0);
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319 | 1ceef9f2 | Jason Wang | |
320 | a083a89d | Michael S. Tsirkin | /* If there is a peer NIC, delete and cleanup client, but do not free. */
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321 | 35277d14 | Stefan Hajnoczi | if (nc->peer && nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
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322 | cc1f0f45 | Jason Wang | NICState *nic = qemu_get_nic(nc->peer); |
323 | a083a89d | Michael S. Tsirkin | if (nic->peer_deleted) {
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324 | a083a89d | Michael S. Tsirkin | return;
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325 | a083a89d | Michael S. Tsirkin | } |
326 | a083a89d | Michael S. Tsirkin | nic->peer_deleted = true;
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327 | 1ceef9f2 | Jason Wang | |
328 | 1ceef9f2 | Jason Wang | for (i = 0; i < queues; i++) { |
329 | 1ceef9f2 | Jason Wang | ncs[i]->peer->link_down = true;
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330 | 1ceef9f2 | Jason Wang | } |
331 | 1ceef9f2 | Jason Wang | |
332 | 35277d14 | Stefan Hajnoczi | if (nc->peer->info->link_status_changed) {
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333 | 35277d14 | Stefan Hajnoczi | nc->peer->info->link_status_changed(nc->peer); |
334 | a083a89d | Michael S. Tsirkin | } |
335 | 1ceef9f2 | Jason Wang | |
336 | 1ceef9f2 | Jason Wang | for (i = 0; i < queues; i++) { |
337 | 1ceef9f2 | Jason Wang | qemu_cleanup_net_client(ncs[i]); |
338 | 1ceef9f2 | Jason Wang | } |
339 | 1ceef9f2 | Jason Wang | |
340 | a083a89d | Michael S. Tsirkin | return;
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341 | a083a89d | Michael S. Tsirkin | } |
342 | a083a89d | Michael S. Tsirkin | |
343 | 948ecf21 | Jason Wang | assert(nc->info->type != NET_CLIENT_OPTIONS_KIND_NIC); |
344 | 948ecf21 | Jason Wang | |
345 | 1ceef9f2 | Jason Wang | for (i = 0; i < queues; i++) { |
346 | 1ceef9f2 | Jason Wang | qemu_cleanup_net_client(ncs[i]); |
347 | 1ceef9f2 | Jason Wang | qemu_free_net_client(ncs[i]); |
348 | 1ceef9f2 | Jason Wang | } |
349 | 948ecf21 | Jason Wang | } |
350 | 948ecf21 | Jason Wang | |
351 | 948ecf21 | Jason Wang | void qemu_del_nic(NICState *nic)
|
352 | 948ecf21 | Jason Wang | { |
353 | b8904921 | Michael Roth | int i, queues = MAX(nic->conf->queues, 1); |
354 | 1ceef9f2 | Jason Wang | |
355 | a083a89d | Michael S. Tsirkin | /* If this is a peer NIC and peer has already been deleted, free it now. */
|
356 | 1ceef9f2 | Jason Wang | if (nic->peer_deleted) {
|
357 | 1ceef9f2 | Jason Wang | for (i = 0; i < queues; i++) { |
358 | 1ceef9f2 | Jason Wang | qemu_free_net_client(qemu_get_subqueue(nic, i)->peer); |
359 | 1a609520 | Jan Kiszka | } |
360 | 1a609520 | Jan Kiszka | } |
361 | 1a609520 | Jan Kiszka | |
362 | 1ceef9f2 | Jason Wang | for (i = queues - 1; i >= 0; i--) { |
363 | 1ceef9f2 | Jason Wang | NetClientState *nc = qemu_get_subqueue(nic, i); |
364 | 1ceef9f2 | Jason Wang | |
365 | 1ceef9f2 | Jason Wang | qemu_cleanup_net_client(nc); |
366 | 1ceef9f2 | Jason Wang | qemu_free_net_client(nc); |
367 | 1ceef9f2 | Jason Wang | } |
368 | f6b26cf2 | Jason Wang | |
369 | f6b26cf2 | Jason Wang | g_free(nic); |
370 | 1a609520 | Jan Kiszka | } |
371 | 1a609520 | Jan Kiszka | |
372 | 57f9ef17 | Mark McLoughlin | void qemu_foreach_nic(qemu_nic_foreach func, void *opaque) |
373 | 57f9ef17 | Mark McLoughlin | { |
374 | 4e68f7a0 | Stefan Hajnoczi | NetClientState *nc; |
375 | 57f9ef17 | Mark McLoughlin | |
376 | 94878994 | Stefan Hajnoczi | QTAILQ_FOREACH(nc, &net_clients, next) { |
377 | 2be64a68 | Laszlo Ersek | if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
|
378 | 1ceef9f2 | Jason Wang | if (nc->queue_index == 0) { |
379 | 1ceef9f2 | Jason Wang | func(qemu_get_nic(nc), opaque); |
380 | 1ceef9f2 | Jason Wang | } |
381 | 57f9ef17 | Mark McLoughlin | } |
382 | 57f9ef17 | Mark McLoughlin | } |
383 | 57f9ef17 | Mark McLoughlin | } |
384 | 57f9ef17 | Mark McLoughlin | |
385 | 4e68f7a0 | Stefan Hajnoczi | int qemu_can_send_packet(NetClientState *sender)
|
386 | 63a01ef8 | aliguori | { |
387 | a005d073 | Stefan Hajnoczi | if (!sender->peer) {
|
388 | d80b9fc6 | Mark McLoughlin | return 1; |
389 | d80b9fc6 | Mark McLoughlin | } |
390 | d80b9fc6 | Mark McLoughlin | |
391 | a005d073 | Stefan Hajnoczi | if (sender->peer->receive_disabled) {
|
392 | a005d073 | Stefan Hajnoczi | return 0; |
393 | a005d073 | Stefan Hajnoczi | } else if (sender->peer->info->can_receive && |
394 | a005d073 | Stefan Hajnoczi | !sender->peer->info->can_receive(sender->peer)) { |
395 | a005d073 | Stefan Hajnoczi | return 0; |
396 | 63a01ef8 | aliguori | } |
397 | 60c07d93 | Vincent Palatin | return 1; |
398 | 63a01ef8 | aliguori | } |
399 | 63a01ef8 | aliguori | |
400 | 86a77c38 | Zhi Yong Wu | ssize_t qemu_deliver_packet(NetClientState *sender, |
401 | 86a77c38 | Zhi Yong Wu | unsigned flags,
|
402 | 86a77c38 | Zhi Yong Wu | const uint8_t *data,
|
403 | 86a77c38 | Zhi Yong Wu | size_t size, |
404 | 86a77c38 | Zhi Yong Wu | void *opaque)
|
405 | 9a6ecb30 | Mark McLoughlin | { |
406 | 35277d14 | Stefan Hajnoczi | NetClientState *nc = opaque; |
407 | 893379ef | Mark McLoughlin | ssize_t ret; |
408 | 9a6ecb30 | Mark McLoughlin | |
409 | 35277d14 | Stefan Hajnoczi | if (nc->link_down) {
|
410 | 9a6ecb30 | Mark McLoughlin | return size;
|
411 | 9a6ecb30 | Mark McLoughlin | } |
412 | 9a6ecb30 | Mark McLoughlin | |
413 | 35277d14 | Stefan Hajnoczi | if (nc->receive_disabled) {
|
414 | 893379ef | Mark McLoughlin | return 0; |
415 | 893379ef | Mark McLoughlin | } |
416 | 893379ef | Mark McLoughlin | |
417 | 35277d14 | Stefan Hajnoczi | if (flags & QEMU_NET_PACKET_FLAG_RAW && nc->info->receive_raw) {
|
418 | 35277d14 | Stefan Hajnoczi | ret = nc->info->receive_raw(nc, data, size); |
419 | 893379ef | Mark McLoughlin | } else {
|
420 | 35277d14 | Stefan Hajnoczi | ret = nc->info->receive(nc, data, size); |
421 | 893379ef | Mark McLoughlin | } |
422 | 893379ef | Mark McLoughlin | |
423 | 893379ef | Mark McLoughlin | if (ret == 0) { |
424 | 35277d14 | Stefan Hajnoczi | nc->receive_disabled = 1;
|
425 | 893379ef | Mark McLoughlin | }; |
426 | 893379ef | Mark McLoughlin | |
427 | 893379ef | Mark McLoughlin | return ret;
|
428 | 9a6ecb30 | Mark McLoughlin | } |
429 | 9a6ecb30 | Mark McLoughlin | |
430 | 35277d14 | Stefan Hajnoczi | void qemu_purge_queued_packets(NetClientState *nc)
|
431 | 8cad5516 | Mark McLoughlin | { |
432 | 35277d14 | Stefan Hajnoczi | if (!nc->peer) {
|
433 | d80b9fc6 | Mark McLoughlin | return;
|
434 | 9a6ecb30 | Mark McLoughlin | } |
435 | d80b9fc6 | Mark McLoughlin | |
436 | 35277d14 | Stefan Hajnoczi | qemu_net_queue_purge(nc->peer->send_queue, nc); |
437 | 8cad5516 | Mark McLoughlin | } |
438 | 8cad5516 | Mark McLoughlin | |
439 | 35277d14 | Stefan Hajnoczi | void qemu_flush_queued_packets(NetClientState *nc)
|
440 | e94667b9 | Mark McLoughlin | { |
441 | 35277d14 | Stefan Hajnoczi | nc->receive_disabled = 0;
|
442 | 9a6ecb30 | Mark McLoughlin | |
443 | 199ee608 | Luigi Rizzo | if (nc->peer && nc->peer->info->type == NET_CLIENT_OPTIONS_KIND_HUBPORT) {
|
444 | 199ee608 | Luigi Rizzo | if (net_hub_flush(nc->peer)) {
|
445 | 199ee608 | Luigi Rizzo | qemu_notify_event(); |
446 | 199ee608 | Luigi Rizzo | } |
447 | 199ee608 | Luigi Rizzo | return;
|
448 | 199ee608 | Luigi Rizzo | } |
449 | 987a9b48 | Paolo Bonzini | if (qemu_net_queue_flush(nc->send_queue)) {
|
450 | 987a9b48 | Paolo Bonzini | /* We emptied the queue successfully, signal to the IO thread to repoll
|
451 | 987a9b48 | Paolo Bonzini | * the file descriptor (for tap, for example).
|
452 | 987a9b48 | Paolo Bonzini | */
|
453 | 987a9b48 | Paolo Bonzini | qemu_notify_event(); |
454 | 987a9b48 | Paolo Bonzini | } |
455 | e94667b9 | Mark McLoughlin | } |
456 | e94667b9 | Mark McLoughlin | |
457 | 4e68f7a0 | Stefan Hajnoczi | static ssize_t qemu_send_packet_async_with_flags(NetClientState *sender,
|
458 | ca77d175 | Mark McLoughlin | unsigned flags,
|
459 | ca77d175 | Mark McLoughlin | const uint8_t *buf, int size, |
460 | ca77d175 | Mark McLoughlin | NetPacketSent *sent_cb) |
461 | 764a4d1d | aliguori | { |
462 | 9a6ecb30 | Mark McLoughlin | NetQueue *queue; |
463 | 436e5e53 | aliguori | |
464 | 63a01ef8 | aliguori | #ifdef DEBUG_NET
|
465 | d80b9fc6 | Mark McLoughlin | printf("qemu_send_packet_async:\n");
|
466 | 63a01ef8 | aliguori | hex_dump(stdout, buf, size); |
467 | 63a01ef8 | aliguori | #endif
|
468 | f3b6c7fc | Mark McLoughlin | |
469 | a005d073 | Stefan Hajnoczi | if (sender->link_down || !sender->peer) {
|
470 | 9a6ecb30 | Mark McLoughlin | return size;
|
471 | 9a6ecb30 | Mark McLoughlin | } |
472 | 9a6ecb30 | Mark McLoughlin | |
473 | a005d073 | Stefan Hajnoczi | queue = sender->peer->send_queue; |
474 | 9a6ecb30 | Mark McLoughlin | |
475 | ca77d175 | Mark McLoughlin | return qemu_net_queue_send(queue, sender, flags, buf, size, sent_cb);
|
476 | ca77d175 | Mark McLoughlin | } |
477 | ca77d175 | Mark McLoughlin | |
478 | 4e68f7a0 | Stefan Hajnoczi | ssize_t qemu_send_packet_async(NetClientState *sender, |
479 | ca77d175 | Mark McLoughlin | const uint8_t *buf, int size, |
480 | ca77d175 | Mark McLoughlin | NetPacketSent *sent_cb) |
481 | ca77d175 | Mark McLoughlin | { |
482 | ca77d175 | Mark McLoughlin | return qemu_send_packet_async_with_flags(sender, QEMU_NET_PACKET_FLAG_NONE,
|
483 | ca77d175 | Mark McLoughlin | buf, size, sent_cb); |
484 | f3b6c7fc | Mark McLoughlin | } |
485 | f3b6c7fc | Mark McLoughlin | |
486 | 35277d14 | Stefan Hajnoczi | void qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size) |
487 | f3b6c7fc | Mark McLoughlin | { |
488 | 35277d14 | Stefan Hajnoczi | qemu_send_packet_async(nc, buf, size, NULL);
|
489 | 63a01ef8 | aliguori | } |
490 | 63a01ef8 | aliguori | |
491 | 35277d14 | Stefan Hajnoczi | ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size) |
492 | ca77d175 | Mark McLoughlin | { |
493 | 35277d14 | Stefan Hajnoczi | return qemu_send_packet_async_with_flags(nc, QEMU_NET_PACKET_FLAG_RAW,
|
494 | ca77d175 | Mark McLoughlin | buf, size, NULL);
|
495 | ca77d175 | Mark McLoughlin | } |
496 | ca77d175 | Mark McLoughlin | |
497 | 35277d14 | Stefan Hajnoczi | static ssize_t nc_sendv_compat(NetClientState *nc, const struct iovec *iov, |
498 | fbe78f4f | aliguori | int iovcnt)
|
499 | fbe78f4f | aliguori | { |
500 | d32fcad3 | Scott Feldman | uint8_t buffer[NET_BUFSIZE]; |
501 | ce053661 | Benjamin Poirier | size_t offset; |
502 | fbe78f4f | aliguori | |
503 | dcf6f5e1 | Michael Tokarev | offset = iov_to_buf(iov, iovcnt, 0, buffer, sizeof(buffer)); |
504 | fbe78f4f | aliguori | |
505 | 35277d14 | Stefan Hajnoczi | return nc->info->receive(nc, buffer, offset);
|
506 | fbe78f4f | aliguori | } |
507 | fbe78f4f | aliguori | |
508 | 86a77c38 | Zhi Yong Wu | ssize_t qemu_deliver_packet_iov(NetClientState *sender, |
509 | 86a77c38 | Zhi Yong Wu | unsigned flags,
|
510 | 86a77c38 | Zhi Yong Wu | const struct iovec *iov, |
511 | 86a77c38 | Zhi Yong Wu | int iovcnt,
|
512 | 86a77c38 | Zhi Yong Wu | void *opaque)
|
513 | 9a6ecb30 | Mark McLoughlin | { |
514 | 35277d14 | Stefan Hajnoczi | NetClientState *nc = opaque; |
515 | c67f5dc1 | Stefan Hajnoczi | int ret;
|
516 | 9a6ecb30 | Mark McLoughlin | |
517 | 35277d14 | Stefan Hajnoczi | if (nc->link_down) {
|
518 | ce053661 | Benjamin Poirier | return iov_size(iov, iovcnt);
|
519 | 9a6ecb30 | Mark McLoughlin | } |
520 | 9a6ecb30 | Mark McLoughlin | |
521 | c67f5dc1 | Stefan Hajnoczi | if (nc->receive_disabled) {
|
522 | c67f5dc1 | Stefan Hajnoczi | return 0; |
523 | c67f5dc1 | Stefan Hajnoczi | } |
524 | c67f5dc1 | Stefan Hajnoczi | |
525 | 35277d14 | Stefan Hajnoczi | if (nc->info->receive_iov) {
|
526 | c67f5dc1 | Stefan Hajnoczi | ret = nc->info->receive_iov(nc, iov, iovcnt); |
527 | 9a6ecb30 | Mark McLoughlin | } else {
|
528 | c67f5dc1 | Stefan Hajnoczi | ret = nc_sendv_compat(nc, iov, iovcnt); |
529 | c67f5dc1 | Stefan Hajnoczi | } |
530 | c67f5dc1 | Stefan Hajnoczi | |
531 | c67f5dc1 | Stefan Hajnoczi | if (ret == 0) { |
532 | c67f5dc1 | Stefan Hajnoczi | nc->receive_disabled = 1;
|
533 | e94667b9 | Mark McLoughlin | } |
534 | c67f5dc1 | Stefan Hajnoczi | |
535 | c67f5dc1 | Stefan Hajnoczi | return ret;
|
536 | e94667b9 | Mark McLoughlin | } |
537 | e94667b9 | Mark McLoughlin | |
538 | 4e68f7a0 | Stefan Hajnoczi | ssize_t qemu_sendv_packet_async(NetClientState *sender, |
539 | f3b6c7fc | Mark McLoughlin | const struct iovec *iov, int iovcnt, |
540 | f3b6c7fc | Mark McLoughlin | NetPacketSent *sent_cb) |
541 | e94667b9 | Mark McLoughlin | { |
542 | 9a6ecb30 | Mark McLoughlin | NetQueue *queue; |
543 | 9a6ecb30 | Mark McLoughlin | |
544 | a005d073 | Stefan Hajnoczi | if (sender->link_down || !sender->peer) {
|
545 | ce053661 | Benjamin Poirier | return iov_size(iov, iovcnt);
|
546 | e94667b9 | Mark McLoughlin | } |
547 | e94667b9 | Mark McLoughlin | |
548 | a005d073 | Stefan Hajnoczi | queue = sender->peer->send_queue; |
549 | 9a6ecb30 | Mark McLoughlin | |
550 | c0b8e49c | Mark McLoughlin | return qemu_net_queue_send_iov(queue, sender,
|
551 | c0b8e49c | Mark McLoughlin | QEMU_NET_PACKET_FLAG_NONE, |
552 | c0b8e49c | Mark McLoughlin | iov, iovcnt, sent_cb); |
553 | fbe78f4f | aliguori | } |
554 | fbe78f4f | aliguori | |
555 | f3b6c7fc | Mark McLoughlin | ssize_t |
556 | 35277d14 | Stefan Hajnoczi | qemu_sendv_packet(NetClientState *nc, const struct iovec *iov, int iovcnt) |
557 | f3b6c7fc | Mark McLoughlin | { |
558 | 35277d14 | Stefan Hajnoczi | return qemu_sendv_packet_async(nc, iov, iovcnt, NULL); |
559 | 63a01ef8 | aliguori | } |
560 | 63a01ef8 | aliguori | |
561 | 4e68f7a0 | Stefan Hajnoczi | NetClientState *qemu_find_netdev(const char *id) |
562 | 5869c4d5 | Mark McLoughlin | { |
563 | 35277d14 | Stefan Hajnoczi | NetClientState *nc; |
564 | 5869c4d5 | Mark McLoughlin | |
565 | 35277d14 | Stefan Hajnoczi | QTAILQ_FOREACH(nc, &net_clients, next) { |
566 | 35277d14 | Stefan Hajnoczi | if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC)
|
567 | 85dde9a9 | Markus Armbruster | continue;
|
568 | 35277d14 | Stefan Hajnoczi | if (!strcmp(nc->name, id)) {
|
569 | 35277d14 | Stefan Hajnoczi | return nc;
|
570 | 5869c4d5 | Mark McLoughlin | } |
571 | 5869c4d5 | Mark McLoughlin | } |
572 | 5869c4d5 | Mark McLoughlin | |
573 | 5869c4d5 | Mark McLoughlin | return NULL; |
574 | 5869c4d5 | Mark McLoughlin | } |
575 | 5869c4d5 | Mark McLoughlin | |
576 | 6c51ae73 | Jason Wang | int qemu_find_net_clients_except(const char *id, NetClientState **ncs, |
577 | 6c51ae73 | Jason Wang | NetClientOptionsKind type, int max)
|
578 | 6c51ae73 | Jason Wang | { |
579 | 6c51ae73 | Jason Wang | NetClientState *nc; |
580 | 6c51ae73 | Jason Wang | int ret = 0; |
581 | 6c51ae73 | Jason Wang | |
582 | 6c51ae73 | Jason Wang | QTAILQ_FOREACH(nc, &net_clients, next) { |
583 | 6c51ae73 | Jason Wang | if (nc->info->type == type) {
|
584 | 6c51ae73 | Jason Wang | continue;
|
585 | 6c51ae73 | Jason Wang | } |
586 | 6c51ae73 | Jason Wang | if (!strcmp(nc->name, id)) {
|
587 | 6c51ae73 | Jason Wang | if (ret < max) {
|
588 | 6c51ae73 | Jason Wang | ncs[ret] = nc; |
589 | 6c51ae73 | Jason Wang | } |
590 | 6c51ae73 | Jason Wang | ret++; |
591 | 6c51ae73 | Jason Wang | } |
592 | 6c51ae73 | Jason Wang | } |
593 | 6c51ae73 | Jason Wang | |
594 | 6c51ae73 | Jason Wang | return ret;
|
595 | 6c51ae73 | Jason Wang | } |
596 | 6c51ae73 | Jason Wang | |
597 | 7697079b | aliguori | static int nic_get_free_idx(void) |
598 | 7697079b | aliguori | { |
599 | 7697079b | aliguori | int index;
|
600 | 7697079b | aliguori | |
601 | 7697079b | aliguori | for (index = 0; index < MAX_NICS; index++) |
602 | 7697079b | aliguori | if (!nd_table[index].used)
|
603 | 7697079b | aliguori | return index;
|
604 | 7697079b | aliguori | return -1; |
605 | 7697079b | aliguori | } |
606 | 7697079b | aliguori | |
607 | 07caea31 | Markus Armbruster | int qemu_show_nic_models(const char *arg, const char *const *models) |
608 | 07caea31 | Markus Armbruster | { |
609 | 07caea31 | Markus Armbruster | int i;
|
610 | 07caea31 | Markus Armbruster | |
611 | c8057f95 | Peter Maydell | if (!arg || !is_help_option(arg)) {
|
612 | 07caea31 | Markus Armbruster | return 0; |
613 | c8057f95 | Peter Maydell | } |
614 | 07caea31 | Markus Armbruster | |
615 | 07caea31 | Markus Armbruster | fprintf(stderr, "qemu: Supported NIC models: ");
|
616 | 07caea31 | Markus Armbruster | for (i = 0 ; models[i]; i++) |
617 | 07caea31 | Markus Armbruster | fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); |
618 | 07caea31 | Markus Armbruster | return 1; |
619 | 07caea31 | Markus Armbruster | } |
620 | 07caea31 | Markus Armbruster | |
621 | d07f22c5 | aliguori | void qemu_check_nic_model(NICInfo *nd, const char *model) |
622 | d07f22c5 | aliguori | { |
623 | d07f22c5 | aliguori | const char *models[2]; |
624 | d07f22c5 | aliguori | |
625 | d07f22c5 | aliguori | models[0] = model;
|
626 | d07f22c5 | aliguori | models[1] = NULL; |
627 | d07f22c5 | aliguori | |
628 | 07caea31 | Markus Armbruster | if (qemu_show_nic_models(nd->model, models))
|
629 | 07caea31 | Markus Armbruster | exit(0);
|
630 | 07caea31 | Markus Armbruster | if (qemu_find_nic_model(nd, models, model) < 0) |
631 | 07caea31 | Markus Armbruster | exit(1);
|
632 | d07f22c5 | aliguori | } |
633 | d07f22c5 | aliguori | |
634 | 07caea31 | Markus Armbruster | int qemu_find_nic_model(NICInfo *nd, const char * const *models, |
635 | 07caea31 | Markus Armbruster | const char *default_model) |
636 | d07f22c5 | aliguori | { |
637 | 07caea31 | Markus Armbruster | int i;
|
638 | d07f22c5 | aliguori | |
639 | d07f22c5 | aliguori | if (!nd->model)
|
640 | 7267c094 | Anthony Liguori | nd->model = g_strdup(default_model); |
641 | d07f22c5 | aliguori | |
642 | 07caea31 | Markus Armbruster | for (i = 0 ; models[i]; i++) { |
643 | 07caea31 | Markus Armbruster | if (strcmp(nd->model, models[i]) == 0) |
644 | 07caea31 | Markus Armbruster | return i;
|
645 | d07f22c5 | aliguori | } |
646 | d07f22c5 | aliguori | |
647 | 6daf194d | Markus Armbruster | error_report("Unsupported NIC model: %s", nd->model);
|
648 | 07caea31 | Markus Armbruster | return -1; |
649 | d07f22c5 | aliguori | } |
650 | d07f22c5 | aliguori | |
651 | 1a0c0958 | Laszlo Ersek | static int net_init_nic(const NetClientOptions *opts, const char *name, |
652 | 4e68f7a0 | Stefan Hajnoczi | NetClientState *peer) |
653 | f83c6e10 | Mark McLoughlin | { |
654 | f83c6e10 | Mark McLoughlin | int idx;
|
655 | f83c6e10 | Mark McLoughlin | NICInfo *nd; |
656 | 2456f36f | Laszlo Ersek | const NetLegacyNicOptions *nic;
|
657 | 2456f36f | Laszlo Ersek | |
658 | 2456f36f | Laszlo Ersek | assert(opts->kind == NET_CLIENT_OPTIONS_KIND_NIC); |
659 | 2456f36f | Laszlo Ersek | nic = opts->nic; |
660 | f83c6e10 | Mark McLoughlin | |
661 | f83c6e10 | Mark McLoughlin | idx = nic_get_free_idx(); |
662 | f83c6e10 | Mark McLoughlin | if (idx == -1 || nb_nics >= MAX_NICS) { |
663 | 1ecda02b | Markus Armbruster | error_report("Too Many NICs");
|
664 | f83c6e10 | Mark McLoughlin | return -1; |
665 | f83c6e10 | Mark McLoughlin | } |
666 | f83c6e10 | Mark McLoughlin | |
667 | f83c6e10 | Mark McLoughlin | nd = &nd_table[idx]; |
668 | f83c6e10 | Mark McLoughlin | |
669 | f83c6e10 | Mark McLoughlin | memset(nd, 0, sizeof(*nd)); |
670 | f83c6e10 | Mark McLoughlin | |
671 | 2456f36f | Laszlo Ersek | if (nic->has_netdev) {
|
672 | 2456f36f | Laszlo Ersek | nd->netdev = qemu_find_netdev(nic->netdev); |
673 | 5869c4d5 | Mark McLoughlin | if (!nd->netdev) {
|
674 | 2456f36f | Laszlo Ersek | error_report("netdev '%s' not found", nic->netdev);
|
675 | 5869c4d5 | Mark McLoughlin | return -1; |
676 | 5869c4d5 | Mark McLoughlin | } |
677 | 5869c4d5 | Mark McLoughlin | } else {
|
678 | d33d93b2 | Stefan Hajnoczi | assert(peer); |
679 | d33d93b2 | Stefan Hajnoczi | nd->netdev = peer; |
680 | 5869c4d5 | Mark McLoughlin | } |
681 | c64f50d1 | Markus Armbruster | nd->name = g_strdup(name); |
682 | 2456f36f | Laszlo Ersek | if (nic->has_model) {
|
683 | 2456f36f | Laszlo Ersek | nd->model = g_strdup(nic->model); |
684 | f83c6e10 | Mark McLoughlin | } |
685 | 2456f36f | Laszlo Ersek | if (nic->has_addr) {
|
686 | 2456f36f | Laszlo Ersek | nd->devaddr = g_strdup(nic->addr); |
687 | f83c6e10 | Mark McLoughlin | } |
688 | f83c6e10 | Mark McLoughlin | |
689 | 2456f36f | Laszlo Ersek | if (nic->has_macaddr &&
|
690 | 2456f36f | Laszlo Ersek | net_parse_macaddr(nd->macaddr.a, nic->macaddr) < 0) {
|
691 | 1ecda02b | Markus Armbruster | error_report("invalid syntax for ethernet address");
|
692 | f83c6e10 | Mark McLoughlin | return -1; |
693 | f83c6e10 | Mark McLoughlin | } |
694 | 6eed1856 | Jan Kiszka | qemu_macaddr_default_if_unset(&nd->macaddr); |
695 | f83c6e10 | Mark McLoughlin | |
696 | 2456f36f | Laszlo Ersek | if (nic->has_vectors) {
|
697 | 2456f36f | Laszlo Ersek | if (nic->vectors > 0x7ffffff) { |
698 | 2456f36f | Laszlo Ersek | error_report("invalid # of vectors: %"PRIu32, nic->vectors);
|
699 | 2456f36f | Laszlo Ersek | return -1; |
700 | 2456f36f | Laszlo Ersek | } |
701 | 2456f36f | Laszlo Ersek | nd->nvectors = nic->vectors; |
702 | 2456f36f | Laszlo Ersek | } else {
|
703 | 2456f36f | Laszlo Ersek | nd->nvectors = DEV_NVECTORS_UNSPECIFIED; |
704 | f83c6e10 | Mark McLoughlin | } |
705 | f83c6e10 | Mark McLoughlin | |
706 | f83c6e10 | Mark McLoughlin | nd->used = 1;
|
707 | f83c6e10 | Mark McLoughlin | nb_nics++; |
708 | f83c6e10 | Mark McLoughlin | |
709 | f83c6e10 | Mark McLoughlin | return idx;
|
710 | f83c6e10 | Mark McLoughlin | } |
711 | f83c6e10 | Mark McLoughlin | |
712 | 6687b79d | Laszlo Ersek | |
713 | 6687b79d | Laszlo Ersek | static int (* const net_client_init_fun[NET_CLIENT_OPTIONS_KIND_MAX])( |
714 | 1a0c0958 | Laszlo Ersek | const NetClientOptions *opts,
|
715 | 6687b79d | Laszlo Ersek | const char *name, |
716 | 4e68f7a0 | Stefan Hajnoczi | NetClientState *peer) = { |
717 | f6c874e3 | Stefan Hajnoczi | [NET_CLIENT_OPTIONS_KIND_NIC] = net_init_nic, |
718 | ec302ffd | Mark McLoughlin | #ifdef CONFIG_SLIRP
|
719 | f6c874e3 | Stefan Hajnoczi | [NET_CLIENT_OPTIONS_KIND_USER] = net_init_slirp, |
720 | 2944e4ec | Stefan Weil | #endif
|
721 | f6c874e3 | Stefan Hajnoczi | [NET_CLIENT_OPTIONS_KIND_TAP] = net_init_tap, |
722 | f6c874e3 | Stefan Hajnoczi | [NET_CLIENT_OPTIONS_KIND_SOCKET] = net_init_socket, |
723 | dd51058d | Mark McLoughlin | #ifdef CONFIG_VDE
|
724 | f6c874e3 | Stefan Hajnoczi | [NET_CLIENT_OPTIONS_KIND_VDE] = net_init_vde, |
725 | dd51058d | Mark McLoughlin | #endif
|
726 | f6c874e3 | Stefan Hajnoczi | [NET_CLIENT_OPTIONS_KIND_DUMP] = net_init_dump, |
727 | 2944e4ec | Stefan Weil | #ifdef CONFIG_NET_BRIDGE
|
728 | f6c874e3 | Stefan Hajnoczi | [NET_CLIENT_OPTIONS_KIND_BRIDGE] = net_init_bridge, |
729 | 6687b79d | Laszlo Ersek | #endif
|
730 | f6c874e3 | Stefan Hajnoczi | [NET_CLIENT_OPTIONS_KIND_HUBPORT] = net_init_hubport, |
731 | f83c6e10 | Mark McLoughlin | }; |
732 | f83c6e10 | Mark McLoughlin | |
733 | 6687b79d | Laszlo Ersek | |
734 | 1a0c0958 | Laszlo Ersek | static int net_client_init1(const void *object, int is_netdev, Error **errp) |
735 | f83c6e10 | Mark McLoughlin | { |
736 | 6687b79d | Laszlo Ersek | union {
|
737 | 6687b79d | Laszlo Ersek | const Netdev *netdev;
|
738 | 6687b79d | Laszlo Ersek | const NetLegacy *net;
|
739 | 6687b79d | Laszlo Ersek | } u; |
740 | 6687b79d | Laszlo Ersek | const NetClientOptions *opts;
|
741 | 6d952ebe | Mark McLoughlin | const char *name; |
742 | f83c6e10 | Mark McLoughlin | |
743 | 5294e2c7 | Markus Armbruster | if (is_netdev) {
|
744 | 6687b79d | Laszlo Ersek | u.netdev = object; |
745 | 6687b79d | Laszlo Ersek | opts = u.netdev->opts; |
746 | 6687b79d | Laszlo Ersek | name = u.netdev->id; |
747 | 6687b79d | Laszlo Ersek | |
748 | 6687b79d | Laszlo Ersek | switch (opts->kind) {
|
749 | f6b134ac | Mark McLoughlin | #ifdef CONFIG_SLIRP
|
750 | 6687b79d | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_USER:
|
751 | f6b134ac | Mark McLoughlin | #endif
|
752 | 6687b79d | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_TAP:
|
753 | 6687b79d | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_SOCKET:
|
754 | f6b134ac | Mark McLoughlin | #ifdef CONFIG_VDE
|
755 | 6687b79d | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_VDE:
|
756 | 6687b79d | Laszlo Ersek | #endif
|
757 | 6687b79d | Laszlo Ersek | #ifdef CONFIG_NET_BRIDGE
|
758 | 6687b79d | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_BRIDGE:
|
759 | f6b134ac | Mark McLoughlin | #endif
|
760 | f6c874e3 | Stefan Hajnoczi | case NET_CLIENT_OPTIONS_KIND_HUBPORT:
|
761 | 6687b79d | Laszlo Ersek | break;
|
762 | 6687b79d | Laszlo Ersek | |
763 | 6687b79d | Laszlo Ersek | default:
|
764 | 4559a1db | Luiz Capitulino | error_set(errp, QERR_INVALID_PARAMETER_VALUE, "type",
|
765 | 4559a1db | Luiz Capitulino | "a netdev backend type");
|
766 | f6b134ac | Mark McLoughlin | return -1; |
767 | f6b134ac | Mark McLoughlin | } |
768 | 6687b79d | Laszlo Ersek | } else {
|
769 | 6687b79d | Laszlo Ersek | u.net = object; |
770 | 6687b79d | Laszlo Ersek | opts = u.net->opts; |
771 | 6687b79d | Laszlo Ersek | /* missing optional values have been initialized to "all bits zero" */
|
772 | 6687b79d | Laszlo Ersek | name = u.net->has_id ? u.net->id : u.net->name; |
773 | 6687b79d | Laszlo Ersek | } |
774 | f6b134ac | Mark McLoughlin | |
775 | 6687b79d | Laszlo Ersek | if (net_client_init_fun[opts->kind]) {
|
776 | 4e68f7a0 | Stefan Hajnoczi | NetClientState *peer = NULL;
|
777 | 6687b79d | Laszlo Ersek | |
778 | 6687b79d | Laszlo Ersek | /* Do not add to a vlan if it's a -netdev or a nic with a netdev=
|
779 | 6687b79d | Laszlo Ersek | * parameter. */
|
780 | 6687b79d | Laszlo Ersek | if (!is_netdev &&
|
781 | 6687b79d | Laszlo Ersek | (opts->kind != NET_CLIENT_OPTIONS_KIND_NIC || |
782 | 6687b79d | Laszlo Ersek | !opts->nic->has_netdev)) { |
783 | d33d93b2 | Stefan Hajnoczi | peer = net_hub_add_port(u.net->has_vlan ? u.net->vlan : 0, NULL); |
784 | f6b134ac | Mark McLoughlin | } |
785 | 6687b79d | Laszlo Ersek | |
786 | d33d93b2 | Stefan Hajnoczi | if (net_client_init_fun[opts->kind](opts, name, peer) < 0) { |
787 | 6687b79d | Laszlo Ersek | /* TODO push error reporting into init() methods */
|
788 | 6687b79d | Laszlo Ersek | error_set(errp, QERR_DEVICE_INIT_FAILED, |
789 | 6687b79d | Laszlo Ersek | NetClientOptionsKind_lookup[opts->kind]); |
790 | f6b134ac | Mark McLoughlin | return -1; |
791 | f6b134ac | Mark McLoughlin | } |
792 | f6b134ac | Mark McLoughlin | } |
793 | 6687b79d | Laszlo Ersek | return 0; |
794 | 6687b79d | Laszlo Ersek | } |
795 | 6687b79d | Laszlo Ersek | |
796 | f6b134ac | Mark McLoughlin | |
797 | 6687b79d | Laszlo Ersek | static void net_visit(Visitor *v, int is_netdev, void **object, Error **errp) |
798 | 6687b79d | Laszlo Ersek | { |
799 | 6687b79d | Laszlo Ersek | if (is_netdev) {
|
800 | 6687b79d | Laszlo Ersek | visit_type_Netdev(v, (Netdev **)object, NULL, errp);
|
801 | 6687b79d | Laszlo Ersek | } else {
|
802 | 6687b79d | Laszlo Ersek | visit_type_NetLegacy(v, (NetLegacy **)object, NULL, errp);
|
803 | 6d952ebe | Mark McLoughlin | } |
804 | 6687b79d | Laszlo Ersek | } |
805 | 6d952ebe | Mark McLoughlin | |
806 | f6b134ac | Mark McLoughlin | |
807 | 6687b79d | Laszlo Ersek | int net_client_init(QemuOpts *opts, int is_netdev, Error **errp) |
808 | 6687b79d | Laszlo Ersek | { |
809 | 6687b79d | Laszlo Ersek | void *object = NULL; |
810 | 6687b79d | Laszlo Ersek | Error *err = NULL;
|
811 | 6687b79d | Laszlo Ersek | int ret = -1; |
812 | f83c6e10 | Mark McLoughlin | |
813 | 6687b79d | Laszlo Ersek | { |
814 | 6687b79d | Laszlo Ersek | OptsVisitor *ov = opts_visitor_new(opts); |
815 | f6b134ac | Mark McLoughlin | |
816 | 6687b79d | Laszlo Ersek | net_visit(opts_get_visitor(ov), is_netdev, &object, &err); |
817 | 6687b79d | Laszlo Ersek | opts_visitor_cleanup(ov); |
818 | f83c6e10 | Mark McLoughlin | } |
819 | f83c6e10 | Mark McLoughlin | |
820 | 6687b79d | Laszlo Ersek | if (!err) {
|
821 | 1a0c0958 | Laszlo Ersek | ret = net_client_init1(object, is_netdev, &err); |
822 | 6687b79d | Laszlo Ersek | } |
823 | 6687b79d | Laszlo Ersek | |
824 | 6687b79d | Laszlo Ersek | if (object) {
|
825 | 6687b79d | Laszlo Ersek | QapiDeallocVisitor *dv = qapi_dealloc_visitor_new(); |
826 | 6687b79d | Laszlo Ersek | |
827 | 6687b79d | Laszlo Ersek | net_visit(qapi_dealloc_get_visitor(dv), is_netdev, &object, NULL);
|
828 | 6687b79d | Laszlo Ersek | qapi_dealloc_visitor_cleanup(dv); |
829 | 6687b79d | Laszlo Ersek | } |
830 | 6687b79d | Laszlo Ersek | |
831 | 6687b79d | Laszlo Ersek | error_propagate(errp, err); |
832 | 6687b79d | Laszlo Ersek | return ret;
|
833 | f83c6e10 | Mark McLoughlin | } |
834 | f83c6e10 | Mark McLoughlin | |
835 | 6687b79d | Laszlo Ersek | |
836 | 6f338c34 | aliguori | static int net_host_check_device(const char *device) |
837 | 6f338c34 | aliguori | { |
838 | 6f338c34 | aliguori | int i;
|
839 | bb9ea79e | aliguori | const char *valid_param_list[] = { "tap", "socket", "dump" |
840 | 2944e4ec | Stefan Weil | #ifdef CONFIG_NET_BRIDGE
|
841 | 2944e4ec | Stefan Weil | , "bridge"
|
842 | 2944e4ec | Stefan Weil | #endif
|
843 | 6f338c34 | aliguori | #ifdef CONFIG_SLIRP
|
844 | 6f338c34 | aliguori | ,"user"
|
845 | 6f338c34 | aliguori | #endif
|
846 | 6f338c34 | aliguori | #ifdef CONFIG_VDE
|
847 | 6f338c34 | aliguori | ,"vde"
|
848 | 6f338c34 | aliguori | #endif
|
849 | 6f338c34 | aliguori | }; |
850 | 6f338c34 | aliguori | for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { |
851 | 6f338c34 | aliguori | if (!strncmp(valid_param_list[i], device,
|
852 | 6f338c34 | aliguori | strlen(valid_param_list[i]))) |
853 | 6f338c34 | aliguori | return 1; |
854 | 6f338c34 | aliguori | } |
855 | 6f338c34 | aliguori | |
856 | 6f338c34 | aliguori | return 0; |
857 | 6f338c34 | aliguori | } |
858 | 6f338c34 | aliguori | |
859 | f18c16de | Luiz Capitulino | void net_host_device_add(Monitor *mon, const QDict *qdict) |
860 | 6f338c34 | aliguori | { |
861 | f18c16de | Luiz Capitulino | const char *device = qdict_get_str(qdict, "device"); |
862 | 7f1c9d20 | Mark McLoughlin | const char *opts_str = qdict_get_try_str(qdict, "opts"); |
863 | 4559a1db | Luiz Capitulino | Error *local_err = NULL;
|
864 | 7f1c9d20 | Mark McLoughlin | QemuOpts *opts; |
865 | f18c16de | Luiz Capitulino | |
866 | 6f338c34 | aliguori | if (!net_host_check_device(device)) {
|
867 | 376253ec | aliguori | monitor_printf(mon, "invalid host network device %s\n", device);
|
868 | 6f338c34 | aliguori | return;
|
869 | 6f338c34 | aliguori | } |
870 | 7f1c9d20 | Mark McLoughlin | |
871 | 3329f07b | Gerd Hoffmann | opts = qemu_opts_parse(qemu_find_opts("net"), opts_str ? opts_str : "", 0); |
872 | 7f1c9d20 | Mark McLoughlin | if (!opts) {
|
873 | 7f1c9d20 | Mark McLoughlin | return;
|
874 | 7f1c9d20 | Mark McLoughlin | } |
875 | 7f1c9d20 | Mark McLoughlin | |
876 | 7f1c9d20 | Mark McLoughlin | qemu_opt_set(opts, "type", device);
|
877 | 7f1c9d20 | Mark McLoughlin | |
878 | 4559a1db | Luiz Capitulino | net_client_init(opts, 0, &local_err);
|
879 | 4559a1db | Luiz Capitulino | if (error_is_set(&local_err)) {
|
880 | 4559a1db | Luiz Capitulino | qerror_report_err(local_err); |
881 | 4559a1db | Luiz Capitulino | error_free(local_err); |
882 | 5c8be678 | aliguori | monitor_printf(mon, "adding host network device %s failed\n", device);
|
883 | 5c8be678 | aliguori | } |
884 | 6f338c34 | aliguori | } |
885 | 6f338c34 | aliguori | |
886 | f18c16de | Luiz Capitulino | void net_host_device_remove(Monitor *mon, const QDict *qdict) |
887 | 6f338c34 | aliguori | { |
888 | 35277d14 | Stefan Hajnoczi | NetClientState *nc; |
889 | f18c16de | Luiz Capitulino | int vlan_id = qdict_get_int(qdict, "vlan_id"); |
890 | f18c16de | Luiz Capitulino | const char *device = qdict_get_str(qdict, "device"); |
891 | 6f338c34 | aliguori | |
892 | 35277d14 | Stefan Hajnoczi | nc = net_hub_find_client_by_name(vlan_id, device); |
893 | 35277d14 | Stefan Hajnoczi | if (!nc) {
|
894 | 6f338c34 | aliguori | return;
|
895 | 6f338c34 | aliguori | } |
896 | 35277d14 | Stefan Hajnoczi | if (!net_host_check_device(nc->model)) {
|
897 | e8f1f9db | aliguori | monitor_printf(mon, "invalid host network device %s\n", device);
|
898 | e8f1f9db | aliguori | return;
|
899 | e8f1f9db | aliguori | } |
900 | b20c6b9e | Stefan Hajnoczi | qemu_del_net_client(nc); |
901 | 6f338c34 | aliguori | } |
902 | 6f338c34 | aliguori | |
903 | 928059a3 | Luiz Capitulino | void netdev_add(QemuOpts *opts, Error **errp)
|
904 | 928059a3 | Luiz Capitulino | { |
905 | 928059a3 | Luiz Capitulino | net_client_init(opts, 1, errp);
|
906 | 928059a3 | Luiz Capitulino | } |
907 | 928059a3 | Luiz Capitulino | |
908 | 928059a3 | Luiz Capitulino | int qmp_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret) |
909 | ae82d324 | Markus Armbruster | { |
910 | 4e89978e | Luiz Capitulino | Error *local_err = NULL;
|
911 | 928059a3 | Luiz Capitulino | QemuOptsList *opts_list; |
912 | ae82d324 | Markus Armbruster | QemuOpts *opts; |
913 | ae82d324 | Markus Armbruster | |
914 | 928059a3 | Luiz Capitulino | opts_list = qemu_find_opts_err("netdev", &local_err);
|
915 | 928059a3 | Luiz Capitulino | if (error_is_set(&local_err)) {
|
916 | 928059a3 | Luiz Capitulino | goto exit_err;
|
917 | ae82d324 | Markus Armbruster | } |
918 | ae82d324 | Markus Armbruster | |
919 | 928059a3 | Luiz Capitulino | opts = qemu_opts_from_qdict(opts_list, qdict, &local_err); |
920 | 928059a3 | Luiz Capitulino | if (error_is_set(&local_err)) {
|
921 | 928059a3 | Luiz Capitulino | goto exit_err;
|
922 | 928059a3 | Luiz Capitulino | } |
923 | 928059a3 | Luiz Capitulino | |
924 | 928059a3 | Luiz Capitulino | netdev_add(opts, &local_err); |
925 | 928059a3 | Luiz Capitulino | if (error_is_set(&local_err)) {
|
926 | 410cbafe | Yoshiaki Tamura | qemu_opts_del(opts); |
927 | 928059a3 | Luiz Capitulino | goto exit_err;
|
928 | 410cbafe | Yoshiaki Tamura | } |
929 | 410cbafe | Yoshiaki Tamura | |
930 | 928059a3 | Luiz Capitulino | return 0; |
931 | 928059a3 | Luiz Capitulino | |
932 | 928059a3 | Luiz Capitulino | exit_err:
|
933 | 928059a3 | Luiz Capitulino | qerror_report_err(local_err); |
934 | 928059a3 | Luiz Capitulino | error_free(local_err); |
935 | 928059a3 | Luiz Capitulino | return -1; |
936 | ae82d324 | Markus Armbruster | } |
937 | ae82d324 | Markus Armbruster | |
938 | 5f964155 | Luiz Capitulino | void qmp_netdev_del(const char *id, Error **errp) |
939 | ae82d324 | Markus Armbruster | { |
940 | 35277d14 | Stefan Hajnoczi | NetClientState *nc; |
941 | 645c9496 | Stefan Hajnoczi | QemuOpts *opts; |
942 | ae82d324 | Markus Armbruster | |
943 | 35277d14 | Stefan Hajnoczi | nc = qemu_find_netdev(id); |
944 | 35277d14 | Stefan Hajnoczi | if (!nc) {
|
945 | 5f964155 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, id); |
946 | 5f964155 | Luiz Capitulino | return;
|
947 | ae82d324 | Markus Armbruster | } |
948 | 5f964155 | Luiz Capitulino | |
949 | 645c9496 | Stefan Hajnoczi | opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), id); |
950 | 645c9496 | Stefan Hajnoczi | if (!opts) {
|
951 | 645c9496 | Stefan Hajnoczi | error_setg(errp, "Device '%s' is not a netdev", id);
|
952 | 645c9496 | Stefan Hajnoczi | return;
|
953 | 645c9496 | Stefan Hajnoczi | } |
954 | 645c9496 | Stefan Hajnoczi | |
955 | b20c6b9e | Stefan Hajnoczi | qemu_del_net_client(nc); |
956 | 645c9496 | Stefan Hajnoczi | qemu_opts_del(opts); |
957 | ae82d324 | Markus Armbruster | } |
958 | ae82d324 | Markus Armbruster | |
959 | 1a859593 | Zhi Yong Wu | void print_net_client(Monitor *mon, NetClientState *nc)
|
960 | 44e798d3 | Jan Kiszka | { |
961 | 1ceef9f2 | Jason Wang | monitor_printf(mon, "%s: index=%d,type=%s,%s\n", nc->name,
|
962 | 1ceef9f2 | Jason Wang | nc->queue_index, |
963 | 1ceef9f2 | Jason Wang | NetClientOptionsKind_lookup[nc->info->type], |
964 | 1ceef9f2 | Jason Wang | nc->info_str); |
965 | 44e798d3 | Jan Kiszka | } |
966 | 44e798d3 | Jan Kiszka | |
967 | 84f2d0ea | Wenchao Xia | void do_info_network(Monitor *mon, const QDict *qdict) |
968 | 63a01ef8 | aliguori | { |
969 | 35277d14 | Stefan Hajnoczi | NetClientState *nc, *peer; |
970 | 2be64a68 | Laszlo Ersek | NetClientOptionsKind type; |
971 | 63a01ef8 | aliguori | |
972 | 1a859593 | Zhi Yong Wu | net_hub_info(mon); |
973 | 1a859593 | Zhi Yong Wu | |
974 | 35277d14 | Stefan Hajnoczi | QTAILQ_FOREACH(nc, &net_clients, next) { |
975 | 35277d14 | Stefan Hajnoczi | peer = nc->peer; |
976 | 35277d14 | Stefan Hajnoczi | type = nc->info->type; |
977 | 5610c3aa | Mark McLoughlin | |
978 | 1a859593 | Zhi Yong Wu | /* Skip if already printed in hub info */
|
979 | 1a859593 | Zhi Yong Wu | if (net_hub_id_for_client(nc, NULL) == 0) { |
980 | 1a859593 | Zhi Yong Wu | continue;
|
981 | 5610c3aa | Mark McLoughlin | } |
982 | 1a859593 | Zhi Yong Wu | |
983 | 2be64a68 | Laszlo Ersek | if (!peer || type == NET_CLIENT_OPTIONS_KIND_NIC) {
|
984 | 35277d14 | Stefan Hajnoczi | print_net_client(mon, nc); |
985 | 19061e63 | Jan Kiszka | } /* else it's a netdev connected to a NIC, printed with the NIC */
|
986 | 2be64a68 | Laszlo Ersek | if (peer && type == NET_CLIENT_OPTIONS_KIND_NIC) {
|
987 | 1a859593 | Zhi Yong Wu | monitor_printf(mon, " \\ ");
|
988 | 44e798d3 | Jan Kiszka | print_net_client(mon, peer); |
989 | a0104e0e | Markus Armbruster | } |
990 | a0104e0e | Markus Armbruster | } |
991 | 63a01ef8 | aliguori | } |
992 | 63a01ef8 | aliguori | |
993 | 4b37156c | Luiz Capitulino | void qmp_set_link(const char *name, bool up, Error **errp) |
994 | 436e5e53 | aliguori | { |
995 | 1ceef9f2 | Jason Wang | NetClientState *ncs[MAX_QUEUE_NUM]; |
996 | 1ceef9f2 | Jason Wang | NetClientState *nc; |
997 | 1ceef9f2 | Jason Wang | int queues, i;
|
998 | 436e5e53 | aliguori | |
999 | 1ceef9f2 | Jason Wang | queues = qemu_find_net_clients_except(name, ncs, |
1000 | 1ceef9f2 | Jason Wang | NET_CLIENT_OPTIONS_KIND_MAX, |
1001 | 1ceef9f2 | Jason Wang | MAX_QUEUE_NUM); |
1002 | 1ceef9f2 | Jason Wang | |
1003 | 1ceef9f2 | Jason Wang | if (queues == 0) { |
1004 | 4b37156c | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, name); |
1005 | 4b37156c | Luiz Capitulino | return;
|
1006 | 436e5e53 | aliguori | } |
1007 | 1ceef9f2 | Jason Wang | nc = ncs[0];
|
1008 | 436e5e53 | aliguori | |
1009 | 1ceef9f2 | Jason Wang | for (i = 0; i < queues; i++) { |
1010 | 1ceef9f2 | Jason Wang | ncs[i]->link_down = !up; |
1011 | 1ceef9f2 | Jason Wang | } |
1012 | 436e5e53 | aliguori | |
1013 | 35277d14 | Stefan Hajnoczi | if (nc->info->link_status_changed) {
|
1014 | 35277d14 | Stefan Hajnoczi | nc->info->link_status_changed(nc); |
1015 | 665a3b07 | Mark McLoughlin | } |
1016 | ab1cbe1c | Michael S. Tsirkin | |
1017 | ab1cbe1c | Michael S. Tsirkin | /* Notify peer. Don't update peer link status: this makes it possible to
|
1018 | ab1cbe1c | Michael S. Tsirkin | * disconnect from host network without notifying the guest.
|
1019 | ab1cbe1c | Michael S. Tsirkin | * FIXME: is disconnected link status change operation useful?
|
1020 | ab1cbe1c | Michael S. Tsirkin | *
|
1021 | ab1cbe1c | Michael S. Tsirkin | * Current behaviour is compatible with qemu vlans where there could be
|
1022 | ab1cbe1c | Michael S. Tsirkin | * multiple clients that can still communicate with each other in
|
1023 | ab1cbe1c | Michael S. Tsirkin | * disconnected mode. For now maintain this compatibility. */
|
1024 | 35277d14 | Stefan Hajnoczi | if (nc->peer && nc->peer->info->link_status_changed) {
|
1025 | 35277d14 | Stefan Hajnoczi | nc->peer->info->link_status_changed(nc->peer); |
1026 | ab1cbe1c | Michael S. Tsirkin | } |
1027 | 436e5e53 | aliguori | } |
1028 | 436e5e53 | aliguori | |
1029 | 63a01ef8 | aliguori | void net_cleanup(void) |
1030 | 63a01ef8 | aliguori | { |
1031 | 1ceef9f2 | Jason Wang | NetClientState *nc; |
1032 | 577c4af9 | Mark McLoughlin | |
1033 | 1ceef9f2 | Jason Wang | /* We may del multiple entries during qemu_del_net_client(),
|
1034 | 1ceef9f2 | Jason Wang | * so QTAILQ_FOREACH_SAFE() is also not safe here.
|
1035 | 1ceef9f2 | Jason Wang | */
|
1036 | 1ceef9f2 | Jason Wang | while (!QTAILQ_EMPTY(&net_clients)) {
|
1037 | 1ceef9f2 | Jason Wang | nc = QTAILQ_FIRST(&net_clients); |
1038 | 948ecf21 | Jason Wang | if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
|
1039 | 948ecf21 | Jason Wang | qemu_del_nic(qemu_get_nic(nc)); |
1040 | 948ecf21 | Jason Wang | } else {
|
1041 | 948ecf21 | Jason Wang | qemu_del_net_client(nc); |
1042 | 948ecf21 | Jason Wang | } |
1043 | 577c4af9 | Mark McLoughlin | } |
1044 | 63a01ef8 | aliguori | } |
1045 | 63a01ef8 | aliguori | |
1046 | 668680f7 | Markus Armbruster | void net_check_clients(void) |
1047 | 63a01ef8 | aliguori | { |
1048 | 35277d14 | Stefan Hajnoczi | NetClientState *nc; |
1049 | 48e2faf2 | Peter Maydell | int i;
|
1050 | 63a01ef8 | aliguori | |
1051 | 641f6eae | Peter Maydell | /* Don't warn about the default network setup that you get if
|
1052 | 641f6eae | Peter Maydell | * no command line -net or -netdev options are specified. There
|
1053 | 641f6eae | Peter Maydell | * are two cases that we would otherwise complain about:
|
1054 | 641f6eae | Peter Maydell | * (1) board doesn't support a NIC but the implicit "-net nic"
|
1055 | 641f6eae | Peter Maydell | * requested one
|
1056 | 641f6eae | Peter Maydell | * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
|
1057 | 641f6eae | Peter Maydell | * sets up a nic that isn't connected to anything.
|
1058 | 641f6eae | Peter Maydell | */
|
1059 | 641f6eae | Peter Maydell | if (default_net) {
|
1060 | 641f6eae | Peter Maydell | return;
|
1061 | 641f6eae | Peter Maydell | } |
1062 | 641f6eae | Peter Maydell | |
1063 | 81017645 | Stefan Hajnoczi | net_hub_check_clients(); |
1064 | ac60cc18 | Tristan Gingold | |
1065 | 35277d14 | Stefan Hajnoczi | QTAILQ_FOREACH(nc, &net_clients, next) { |
1066 | 35277d14 | Stefan Hajnoczi | if (!nc->peer) {
|
1067 | efe32fdd | Markus Armbruster | fprintf(stderr, "Warning: %s %s has no peer\n",
|
1068 | 35277d14 | Stefan Hajnoczi | nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC ? |
1069 | 35277d14 | Stefan Hajnoczi | "nic" : "netdev", nc->name); |
1070 | efe32fdd | Markus Armbruster | } |
1071 | efe32fdd | Markus Armbruster | } |
1072 | 48e2faf2 | Peter Maydell | |
1073 | 48e2faf2 | Peter Maydell | /* Check that all NICs requested via -net nic actually got created.
|
1074 | 48e2faf2 | Peter Maydell | * NICs created via -device don't need to be checked here because
|
1075 | 48e2faf2 | Peter Maydell | * they are always instantiated.
|
1076 | 48e2faf2 | Peter Maydell | */
|
1077 | 48e2faf2 | Peter Maydell | for (i = 0; i < MAX_NICS; i++) { |
1078 | 48e2faf2 | Peter Maydell | NICInfo *nd = &nd_table[i]; |
1079 | 48e2faf2 | Peter Maydell | if (nd->used && !nd->instantiated) {
|
1080 | 48e2faf2 | Peter Maydell | fprintf(stderr, "Warning: requested NIC (%s, model %s) "
|
1081 | 48e2faf2 | Peter Maydell | "was not created (not supported by this machine?)\n",
|
1082 | 48e2faf2 | Peter Maydell | nd->name ? nd->name : "anonymous",
|
1083 | 48e2faf2 | Peter Maydell | nd->model ? nd->model : "unspecified");
|
1084 | 48e2faf2 | Peter Maydell | } |
1085 | 48e2faf2 | Peter Maydell | } |
1086 | 63a01ef8 | aliguori | } |
1087 | dc1c9fe8 | Mark McLoughlin | |
1088 | dc1c9fe8 | Mark McLoughlin | static int net_init_client(QemuOpts *opts, void *dummy) |
1089 | dc1c9fe8 | Mark McLoughlin | { |
1090 | 4559a1db | Luiz Capitulino | Error *local_err = NULL;
|
1091 | 4559a1db | Luiz Capitulino | |
1092 | 4559a1db | Luiz Capitulino | net_client_init(opts, 0, &local_err);
|
1093 | 4559a1db | Luiz Capitulino | if (error_is_set(&local_err)) {
|
1094 | 4559a1db | Luiz Capitulino | qerror_report_err(local_err); |
1095 | 4559a1db | Luiz Capitulino | error_free(local_err); |
1096 | c1671a08 | Mark McLoughlin | return -1; |
1097 | 4559a1db | Luiz Capitulino | } |
1098 | 4559a1db | Luiz Capitulino | |
1099 | c1671a08 | Mark McLoughlin | return 0; |
1100 | f6b134ac | Mark McLoughlin | } |
1101 | f6b134ac | Mark McLoughlin | |
1102 | f6b134ac | Mark McLoughlin | static int net_init_netdev(QemuOpts *opts, void *dummy) |
1103 | f6b134ac | Mark McLoughlin | { |
1104 | 4559a1db | Luiz Capitulino | Error *local_err = NULL;
|
1105 | 4559a1db | Luiz Capitulino | int ret;
|
1106 | 4559a1db | Luiz Capitulino | |
1107 | 4559a1db | Luiz Capitulino | ret = net_client_init(opts, 1, &local_err);
|
1108 | 4559a1db | Luiz Capitulino | if (error_is_set(&local_err)) {
|
1109 | 4559a1db | Luiz Capitulino | qerror_report_err(local_err); |
1110 | 4559a1db | Luiz Capitulino | error_free(local_err); |
1111 | 4559a1db | Luiz Capitulino | return -1; |
1112 | 4559a1db | Luiz Capitulino | } |
1113 | 4559a1db | Luiz Capitulino | |
1114 | 4559a1db | Luiz Capitulino | return ret;
|
1115 | dc1c9fe8 | Mark McLoughlin | } |
1116 | dc1c9fe8 | Mark McLoughlin | |
1117 | dc1c9fe8 | Mark McLoughlin | int net_init_clients(void) |
1118 | dc1c9fe8 | Mark McLoughlin | { |
1119 | 3329f07b | Gerd Hoffmann | QemuOptsList *net = qemu_find_opts("net");
|
1120 | 3329f07b | Gerd Hoffmann | |
1121 | cb4522cc | Gerd Hoffmann | if (default_net) {
|
1122 | dc1c9fe8 | Mark McLoughlin | /* if no clients, we use a default config */
|
1123 | 3329f07b | Gerd Hoffmann | qemu_opts_set(net, NULL, "type", "nic"); |
1124 | dc1c9fe8 | Mark McLoughlin | #ifdef CONFIG_SLIRP
|
1125 | 3329f07b | Gerd Hoffmann | qemu_opts_set(net, NULL, "type", "user"); |
1126 | dc1c9fe8 | Mark McLoughlin | #endif
|
1127 | dc1c9fe8 | Mark McLoughlin | } |
1128 | dc1c9fe8 | Mark McLoughlin | |
1129 | 94878994 | Stefan Hajnoczi | QTAILQ_INIT(&net_clients); |
1130 | 5610c3aa | Mark McLoughlin | |
1131 | 3329f07b | Gerd Hoffmann | if (qemu_opts_foreach(qemu_find_opts("netdev"), net_init_netdev, NULL, 1) == -1) |
1132 | f6b134ac | Mark McLoughlin | return -1; |
1133 | f6b134ac | Mark McLoughlin | |
1134 | 3329f07b | Gerd Hoffmann | if (qemu_opts_foreach(net, net_init_client, NULL, 1) == -1) { |
1135 | dc1c9fe8 | Mark McLoughlin | return -1; |
1136 | dc1c9fe8 | Mark McLoughlin | } |
1137 | dc1c9fe8 | Mark McLoughlin | |
1138 | dc1c9fe8 | Mark McLoughlin | return 0; |
1139 | dc1c9fe8 | Mark McLoughlin | } |
1140 | dc1c9fe8 | Mark McLoughlin | |
1141 | 7f161aae | Mark McLoughlin | int net_client_parse(QemuOptsList *opts_list, const char *optarg) |
1142 | dc1c9fe8 | Mark McLoughlin | { |
1143 | a3a766e7 | Juan Quintela | #if defined(CONFIG_SLIRP)
|
1144 | 68ac40d2 | Mark McLoughlin | int ret;
|
1145 | 68ac40d2 | Mark McLoughlin | if (net_slirp_parse_legacy(opts_list, optarg, &ret)) {
|
1146 | dc1c9fe8 | Mark McLoughlin | return ret;
|
1147 | dc1c9fe8 | Mark McLoughlin | } |
1148 | a3a766e7 | Juan Quintela | #endif
|
1149 | 68ac40d2 | Mark McLoughlin | |
1150 | 8212c64f | Markus Armbruster | if (!qemu_opts_parse(opts_list, optarg, 1)) { |
1151 | dc1c9fe8 | Mark McLoughlin | return -1; |
1152 | dc1c9fe8 | Mark McLoughlin | } |
1153 | dc1c9fe8 | Mark McLoughlin | |
1154 | cb4522cc | Gerd Hoffmann | default_net = 0;
|
1155 | dc1c9fe8 | Mark McLoughlin | return 0; |
1156 | dc1c9fe8 | Mark McLoughlin | } |
1157 | 7fc8d918 | Jason Wang | |
1158 | 7fc8d918 | Jason Wang | /* From FreeBSD */
|
1159 | 7fc8d918 | Jason Wang | /* XXX: optimize */
|
1160 | 7fc8d918 | Jason Wang | unsigned compute_mcast_idx(const uint8_t *ep) |
1161 | 7fc8d918 | Jason Wang | { |
1162 | 7fc8d918 | Jason Wang | uint32_t crc; |
1163 | 7fc8d918 | Jason Wang | int carry, i, j;
|
1164 | 7fc8d918 | Jason Wang | uint8_t b; |
1165 | 7fc8d918 | Jason Wang | |
1166 | 7fc8d918 | Jason Wang | crc = 0xffffffff;
|
1167 | 7fc8d918 | Jason Wang | for (i = 0; i < 6; i++) { |
1168 | 7fc8d918 | Jason Wang | b = *ep++; |
1169 | 7fc8d918 | Jason Wang | for (j = 0; j < 8; j++) { |
1170 | 7fc8d918 | Jason Wang | carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01); |
1171 | 7fc8d918 | Jason Wang | crc <<= 1;
|
1172 | 7fc8d918 | Jason Wang | b >>= 1;
|
1173 | 7fc8d918 | Jason Wang | if (carry) {
|
1174 | 7fc8d918 | Jason Wang | crc = ((crc ^ POLYNOMIAL) | carry); |
1175 | 7fc8d918 | Jason Wang | } |
1176 | 7fc8d918 | Jason Wang | } |
1177 | 7fc8d918 | Jason Wang | } |
1178 | 7fc8d918 | Jason Wang | return crc >> 26; |
1179 | 7fc8d918 | Jason Wang | } |
1180 | 4d454574 | Paolo Bonzini | |
1181 | 4d454574 | Paolo Bonzini | QemuOptsList qemu_netdev_opts = { |
1182 | 4d454574 | Paolo Bonzini | .name = "netdev",
|
1183 | 4d454574 | Paolo Bonzini | .implied_opt_name = "type",
|
1184 | 4d454574 | Paolo Bonzini | .head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head), |
1185 | 4d454574 | Paolo Bonzini | .desc = { |
1186 | 4d454574 | Paolo Bonzini | /*
|
1187 | 4d454574 | Paolo Bonzini | * no elements => accept any params
|
1188 | 4d454574 | Paolo Bonzini | * validation will happen later
|
1189 | 4d454574 | Paolo Bonzini | */
|
1190 | 4d454574 | Paolo Bonzini | { /* end of list */ }
|
1191 | 4d454574 | Paolo Bonzini | }, |
1192 | 4d454574 | Paolo Bonzini | }; |
1193 | 4d454574 | Paolo Bonzini | |
1194 | 4d454574 | Paolo Bonzini | QemuOptsList qemu_net_opts = { |
1195 | 4d454574 | Paolo Bonzini | .name = "net",
|
1196 | 4d454574 | Paolo Bonzini | .implied_opt_name = "type",
|
1197 | 4d454574 | Paolo Bonzini | .head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head), |
1198 | 4d454574 | Paolo Bonzini | .desc = { |
1199 | 4d454574 | Paolo Bonzini | /*
|
1200 | 4d454574 | Paolo Bonzini | * no elements => accept any params
|
1201 | 4d454574 | Paolo Bonzini | * validation will happen later
|
1202 | 4d454574 | Paolo Bonzini | */
|
1203 | 4d454574 | Paolo Bonzini | { /* end of list */ }
|
1204 | 4d454574 | Paolo Bonzini | }, |
1205 | 4d454574 | Paolo Bonzini | }; |