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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 | 1df49e04 | Mark McLoughlin | #include "net.h" |
25 | 63a01ef8 | aliguori | |
26 | d40cdb10 | blueswir1 | #include "config-host.h" |
27 | d40cdb10 | blueswir1 | |
28 | a8ed73f7 | Mark McLoughlin | #include "net/tap.h" |
29 | 42281ac9 | Mark McLoughlin | #include "net/socket.h" |
30 | 1abecf77 | Mark McLoughlin | #include "net/dump.h" |
31 | 68ac40d2 | Mark McLoughlin | #include "net/slirp.h" |
32 | 5c361cc3 | Mark McLoughlin | #include "net/vde.h" |
33 | f1d078c3 | Mark McLoughlin | #include "net/util.h" |
34 | 511d2b14 | blueswir1 | #include "monitor.h" |
35 | 1df49e04 | Mark McLoughlin | #include "qemu-common.h" |
36 | 511d2b14 | blueswir1 | #include "qemu_socket.h" |
37 | 4b37156c | Luiz Capitulino | #include "qmp-commands.h" |
38 | 75422b0d | Amit Shah | #include "hw/qdev.h" |
39 | ce053661 | Benjamin Poirier | #include "iov.h" |
40 | 6687b79d | Laszlo Ersek | #include "qapi-visit.h" |
41 | 6687b79d | Laszlo Ersek | #include "qapi/opts-visitor.h" |
42 | 6687b79d | Laszlo Ersek | #include "qapi/qapi-dealloc-visitor.h" |
43 | 511d2b14 | blueswir1 | |
44 | 2944e4ec | Stefan Weil | /* Net bridge is currently not supported for W32. */
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45 | 2944e4ec | Stefan Weil | #if !defined(_WIN32)
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46 | 2944e4ec | Stefan Weil | # define CONFIG_NET_BRIDGE
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47 | 2944e4ec | Stefan Weil | #endif
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48 | 2944e4ec | Stefan Weil | |
49 | 5610c3aa | Mark McLoughlin | static QTAILQ_HEAD(, VLANState) vlans;
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50 | 577c4af9 | Mark McLoughlin | static QTAILQ_HEAD(, VLANClientState) non_vlan_clients;
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51 | 63a01ef8 | aliguori | |
52 | cb4522cc | Gerd Hoffmann | int default_net = 1; |
53 | cb4522cc | Gerd Hoffmann | |
54 | 63a01ef8 | aliguori | /***********************************************************/
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55 | 63a01ef8 | aliguori | /* network device redirectors */
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56 | 63a01ef8 | aliguori | |
57 | 68ac40d2 | Mark McLoughlin | #if defined(DEBUG_NET)
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58 | 63a01ef8 | aliguori | static void hex_dump(FILE *f, const uint8_t *buf, int size) |
59 | 63a01ef8 | aliguori | { |
60 | 63a01ef8 | aliguori | int len, i, j, c;
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61 | 63a01ef8 | aliguori | |
62 | 63a01ef8 | aliguori | for(i=0;i<size;i+=16) { |
63 | 63a01ef8 | aliguori | len = size - i; |
64 | 63a01ef8 | aliguori | if (len > 16) |
65 | 63a01ef8 | aliguori | len = 16;
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66 | 63a01ef8 | aliguori | fprintf(f, "%08x ", i);
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67 | 63a01ef8 | aliguori | for(j=0;j<16;j++) { |
68 | 63a01ef8 | aliguori | if (j < len)
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69 | 63a01ef8 | aliguori | fprintf(f, " %02x", buf[i+j]);
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70 | 63a01ef8 | aliguori | else
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71 | 63a01ef8 | aliguori | fprintf(f, " ");
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72 | 63a01ef8 | aliguori | } |
73 | 63a01ef8 | aliguori | fprintf(f, " ");
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74 | 63a01ef8 | aliguori | for(j=0;j<len;j++) { |
75 | 63a01ef8 | aliguori | c = buf[i+j]; |
76 | 63a01ef8 | aliguori | if (c < ' ' || c > '~') |
77 | 63a01ef8 | aliguori | c = '.';
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78 | 63a01ef8 | aliguori | fprintf(f, "%c", c);
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79 | 63a01ef8 | aliguori | } |
80 | 63a01ef8 | aliguori | fprintf(f, "\n");
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81 | 63a01ef8 | aliguori | } |
82 | 63a01ef8 | aliguori | } |
83 | 63a01ef8 | aliguori | #endif
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84 | 63a01ef8 | aliguori | |
85 | 63a01ef8 | aliguori | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) |
86 | 63a01ef8 | aliguori | { |
87 | 63a01ef8 | aliguori | const char *p, *p1; |
88 | 63a01ef8 | aliguori | int len;
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89 | 63a01ef8 | aliguori | p = *pp; |
90 | 63a01ef8 | aliguori | p1 = strchr(p, sep); |
91 | 63a01ef8 | aliguori | if (!p1)
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92 | 63a01ef8 | aliguori | return -1; |
93 | 63a01ef8 | aliguori | len = p1 - p; |
94 | 63a01ef8 | aliguori | p1++; |
95 | 63a01ef8 | aliguori | if (buf_size > 0) { |
96 | 63a01ef8 | aliguori | if (len > buf_size - 1) |
97 | 63a01ef8 | aliguori | len = buf_size - 1;
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98 | 63a01ef8 | aliguori | memcpy(buf, p, len); |
99 | 63a01ef8 | aliguori | buf[len] = '\0';
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100 | 63a01ef8 | aliguori | } |
101 | 63a01ef8 | aliguori | *pp = p1; |
102 | 63a01ef8 | aliguori | return 0; |
103 | 63a01ef8 | aliguori | } |
104 | 63a01ef8 | aliguori | |
105 | 63a01ef8 | aliguori | int parse_host_port(struct sockaddr_in *saddr, const char *str) |
106 | 63a01ef8 | aliguori | { |
107 | 63a01ef8 | aliguori | char buf[512]; |
108 | 63a01ef8 | aliguori | struct hostent *he;
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109 | 63a01ef8 | aliguori | const char *p, *r; |
110 | 63a01ef8 | aliguori | int port;
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111 | 63a01ef8 | aliguori | |
112 | 63a01ef8 | aliguori | p = str; |
113 | 63a01ef8 | aliguori | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
114 | 63a01ef8 | aliguori | return -1; |
115 | 63a01ef8 | aliguori | saddr->sin_family = AF_INET; |
116 | 63a01ef8 | aliguori | if (buf[0] == '\0') { |
117 | 63a01ef8 | aliguori | saddr->sin_addr.s_addr = 0;
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118 | 63a01ef8 | aliguori | } else {
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119 | cd390083 | blueswir1 | if (qemu_isdigit(buf[0])) { |
120 | 63a01ef8 | aliguori | if (!inet_aton(buf, &saddr->sin_addr))
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121 | 63a01ef8 | aliguori | return -1; |
122 | 63a01ef8 | aliguori | } else {
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123 | 63a01ef8 | aliguori | if ((he = gethostbyname(buf)) == NULL) |
124 | 63a01ef8 | aliguori | return - 1; |
125 | 63a01ef8 | aliguori | saddr->sin_addr = *(struct in_addr *)he->h_addr;
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126 | 63a01ef8 | aliguori | } |
127 | 63a01ef8 | aliguori | } |
128 | 63a01ef8 | aliguori | port = strtol(p, (char **)&r, 0); |
129 | 63a01ef8 | aliguori | if (r == p)
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130 | 63a01ef8 | aliguori | return -1; |
131 | 63a01ef8 | aliguori | saddr->sin_port = htons(port); |
132 | 63a01ef8 | aliguori | return 0; |
133 | 63a01ef8 | aliguori | } |
134 | 63a01ef8 | aliguori | |
135 | 7cb7434b | aliguori | void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]) |
136 | 7cb7434b | aliguori | { |
137 | 7cb7434b | aliguori | snprintf(vc->info_str, sizeof(vc->info_str),
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138 | 4dda4063 | aliguori | "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
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139 | 4dda4063 | aliguori | vc->model, |
140 | 7cb7434b | aliguori | macaddr[0], macaddr[1], macaddr[2], |
141 | 7cb7434b | aliguori | macaddr[3], macaddr[4], macaddr[5]); |
142 | 7cb7434b | aliguori | } |
143 | 7cb7434b | aliguori | |
144 | 76d32cba | Gerd Hoffmann | void qemu_macaddr_default_if_unset(MACAddr *macaddr)
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145 | 76d32cba | Gerd Hoffmann | { |
146 | 76d32cba | Gerd Hoffmann | static int index = 0; |
147 | 76d32cba | Gerd Hoffmann | static const MACAddr zero = { .a = { 0,0,0,0,0,0 } }; |
148 | 76d32cba | Gerd Hoffmann | |
149 | 76d32cba | Gerd Hoffmann | if (memcmp(macaddr, &zero, sizeof(zero)) != 0) |
150 | 76d32cba | Gerd Hoffmann | return;
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151 | 76d32cba | Gerd Hoffmann | macaddr->a[0] = 0x52; |
152 | 76d32cba | Gerd Hoffmann | macaddr->a[1] = 0x54; |
153 | 76d32cba | Gerd Hoffmann | macaddr->a[2] = 0x00; |
154 | 76d32cba | Gerd Hoffmann | macaddr->a[3] = 0x12; |
155 | 76d32cba | Gerd Hoffmann | macaddr->a[4] = 0x34; |
156 | 76d32cba | Gerd Hoffmann | macaddr->a[5] = 0x56 + index++; |
157 | 76d32cba | Gerd Hoffmann | } |
158 | 76d32cba | Gerd Hoffmann | |
159 | 676cff29 | aliguori | static char *assign_name(VLANClientState *vc1, const char *model) |
160 | 676cff29 | aliguori | { |
161 | 676cff29 | aliguori | VLANState *vlan; |
162 | 53e51d85 | Markus Armbruster | VLANClientState *vc; |
163 | 676cff29 | aliguori | char buf[256]; |
164 | 676cff29 | aliguori | int id = 0; |
165 | 676cff29 | aliguori | |
166 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH(vlan, &vlans, next) { |
167 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
168 | 5610c3aa | Mark McLoughlin | if (vc != vc1 && strcmp(vc->model, model) == 0) { |
169 | 676cff29 | aliguori | id++; |
170 | 5610c3aa | Mark McLoughlin | } |
171 | 5610c3aa | Mark McLoughlin | } |
172 | 676cff29 | aliguori | } |
173 | 676cff29 | aliguori | |
174 | 53e51d85 | Markus Armbruster | QTAILQ_FOREACH(vc, &non_vlan_clients, next) { |
175 | 53e51d85 | Markus Armbruster | if (vc != vc1 && strcmp(vc->model, model) == 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 | 9a6ecb30 | Mark McLoughlin | static ssize_t qemu_deliver_packet(VLANClientState *sender,
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186 | c0b8e49c | Mark McLoughlin | unsigned flags,
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187 | 9a6ecb30 | Mark McLoughlin | const uint8_t *data,
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188 | 9a6ecb30 | Mark McLoughlin | size_t size, |
189 | 9a6ecb30 | Mark McLoughlin | void *opaque);
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190 | 9a6ecb30 | Mark McLoughlin | static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
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191 | c0b8e49c | Mark McLoughlin | unsigned flags,
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192 | 9a6ecb30 | Mark McLoughlin | const struct iovec *iov, |
193 | 9a6ecb30 | Mark McLoughlin | int iovcnt,
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194 | 9a6ecb30 | Mark McLoughlin | void *opaque);
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195 | 9a6ecb30 | Mark McLoughlin | |
196 | 45460d1a | Mark McLoughlin | VLANClientState *qemu_new_net_client(NetClientInfo *info, |
197 | 45460d1a | Mark McLoughlin | VLANState *vlan, |
198 | 45460d1a | Mark McLoughlin | VLANClientState *peer, |
199 | 45460d1a | Mark McLoughlin | const char *model, |
200 | 45460d1a | Mark McLoughlin | const char *name) |
201 | 63a01ef8 | aliguori | { |
202 | 5610c3aa | Mark McLoughlin | VLANClientState *vc; |
203 | 5610c3aa | Mark McLoughlin | |
204 | 45460d1a | Mark McLoughlin | assert(info->size >= sizeof(VLANClientState));
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205 | 45460d1a | Mark McLoughlin | |
206 | 7267c094 | Anthony Liguori | vc = g_malloc0(info->size); |
207 | 5610c3aa | Mark McLoughlin | |
208 | 665a3b07 | Mark McLoughlin | vc->info = info; |
209 | 7267c094 | Anthony Liguori | vc->model = g_strdup(model); |
210 | 45460d1a | Mark McLoughlin | if (name) {
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211 | 7267c094 | Anthony Liguori | vc->name = g_strdup(name); |
212 | 45460d1a | Mark McLoughlin | } else {
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213 | 7a9f6e4a | aliguori | vc->name = assign_name(vc, model); |
214 | 45460d1a | Mark McLoughlin | } |
215 | 5610c3aa | Mark McLoughlin | |
216 | d80b9fc6 | Mark McLoughlin | if (vlan) {
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217 | 283c7c63 | Mark McLoughlin | assert(!peer); |
218 | d80b9fc6 | Mark McLoughlin | vc->vlan = vlan; |
219 | d80b9fc6 | Mark McLoughlin | QTAILQ_INSERT_TAIL(&vc->vlan->clients, vc, next); |
220 | 577c4af9 | Mark McLoughlin | } else {
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221 | 283c7c63 | Mark McLoughlin | if (peer) {
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222 | 27f3f8a3 | Markus Armbruster | assert(!peer->peer); |
223 | 283c7c63 | Mark McLoughlin | vc->peer = peer; |
224 | 283c7c63 | Mark McLoughlin | peer->peer = vc; |
225 | 283c7c63 | Mark McLoughlin | } |
226 | 577c4af9 | Mark McLoughlin | QTAILQ_INSERT_TAIL(&non_vlan_clients, vc, next); |
227 | 9a6ecb30 | Mark McLoughlin | |
228 | 9a6ecb30 | Mark McLoughlin | vc->send_queue = qemu_new_net_queue(qemu_deliver_packet, |
229 | 9a6ecb30 | Mark McLoughlin | qemu_deliver_packet_iov, |
230 | 9a6ecb30 | Mark McLoughlin | vc); |
231 | d80b9fc6 | Mark McLoughlin | } |
232 | 63a01ef8 | aliguori | |
233 | 63a01ef8 | aliguori | return vc;
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234 | 63a01ef8 | aliguori | } |
235 | 63a01ef8 | aliguori | |
236 | ebef2c09 | Mark McLoughlin | NICState *qemu_new_nic(NetClientInfo *info, |
237 | ebef2c09 | Mark McLoughlin | NICConf *conf, |
238 | ebef2c09 | Mark McLoughlin | const char *model, |
239 | ebef2c09 | Mark McLoughlin | const char *name, |
240 | ebef2c09 | Mark McLoughlin | void *opaque)
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241 | ebef2c09 | Mark McLoughlin | { |
242 | ebef2c09 | Mark McLoughlin | VLANClientState *nc; |
243 | ebef2c09 | Mark McLoughlin | NICState *nic; |
244 | ebef2c09 | Mark McLoughlin | |
245 | 2be64a68 | Laszlo Ersek | assert(info->type == NET_CLIENT_OPTIONS_KIND_NIC); |
246 | ebef2c09 | Mark McLoughlin | assert(info->size >= sizeof(NICState));
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247 | ebef2c09 | Mark McLoughlin | |
248 | ebef2c09 | Mark McLoughlin | nc = qemu_new_net_client(info, conf->vlan, conf->peer, model, name); |
249 | ebef2c09 | Mark McLoughlin | |
250 | ebef2c09 | Mark McLoughlin | nic = DO_UPCAST(NICState, nc, nc); |
251 | ebef2c09 | Mark McLoughlin | nic->conf = conf; |
252 | ebef2c09 | Mark McLoughlin | nic->opaque = opaque; |
253 | ebef2c09 | Mark McLoughlin | |
254 | ebef2c09 | Mark McLoughlin | return nic;
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255 | ebef2c09 | Mark McLoughlin | } |
256 | ebef2c09 | Mark McLoughlin | |
257 | a083a89d | Michael S. Tsirkin | static void qemu_cleanup_vlan_client(VLANClientState *vc) |
258 | 63a01ef8 | aliguori | { |
259 | d80b9fc6 | Mark McLoughlin | if (vc->vlan) {
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260 | d80b9fc6 | Mark McLoughlin | QTAILQ_REMOVE(&vc->vlan->clients, vc, next); |
261 | 577c4af9 | Mark McLoughlin | } else {
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262 | 577c4af9 | Mark McLoughlin | QTAILQ_REMOVE(&non_vlan_clients, vc, next); |
263 | d80b9fc6 | Mark McLoughlin | } |
264 | 63a01ef8 | aliguori | |
265 | 665a3b07 | Mark McLoughlin | if (vc->info->cleanup) {
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266 | 665a3b07 | Mark McLoughlin | vc->info->cleanup(vc); |
267 | 5610c3aa | Mark McLoughlin | } |
268 | a083a89d | Michael S. Tsirkin | } |
269 | 5610c3aa | Mark McLoughlin | |
270 | a083a89d | Michael S. Tsirkin | static void qemu_free_vlan_client(VLANClientState *vc) |
271 | a083a89d | Michael S. Tsirkin | { |
272 | a083a89d | Michael S. Tsirkin | if (!vc->vlan) {
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273 | a083a89d | Michael S. Tsirkin | if (vc->send_queue) {
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274 | a083a89d | Michael S. Tsirkin | qemu_del_net_queue(vc->send_queue); |
275 | a083a89d | Michael S. Tsirkin | } |
276 | a083a89d | Michael S. Tsirkin | if (vc->peer) {
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277 | a083a89d | Michael S. Tsirkin | vc->peer->peer = NULL;
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278 | a083a89d | Michael S. Tsirkin | } |
279 | a083a89d | Michael S. Tsirkin | } |
280 | 7267c094 | Anthony Liguori | g_free(vc->name); |
281 | 7267c094 | Anthony Liguori | g_free(vc->model); |
282 | 7267c094 | Anthony Liguori | g_free(vc); |
283 | 63a01ef8 | aliguori | } |
284 | 63a01ef8 | aliguori | |
285 | a083a89d | Michael S. Tsirkin | void qemu_del_vlan_client(VLANClientState *vc)
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286 | a083a89d | Michael S. Tsirkin | { |
287 | a083a89d | Michael S. Tsirkin | /* If there is a peer NIC, delete and cleanup client, but do not free. */
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288 | 2be64a68 | Laszlo Ersek | if (!vc->vlan && vc->peer && vc->peer->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
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289 | a083a89d | Michael S. Tsirkin | NICState *nic = DO_UPCAST(NICState, nc, vc->peer); |
290 | a083a89d | Michael S. Tsirkin | if (nic->peer_deleted) {
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291 | a083a89d | Michael S. Tsirkin | return;
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292 | a083a89d | Michael S. Tsirkin | } |
293 | a083a89d | Michael S. Tsirkin | nic->peer_deleted = true;
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294 | a083a89d | Michael S. Tsirkin | /* Let NIC know peer is gone. */
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295 | a083a89d | Michael S. Tsirkin | vc->peer->link_down = true;
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296 | a083a89d | Michael S. Tsirkin | if (vc->peer->info->link_status_changed) {
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297 | a083a89d | Michael S. Tsirkin | vc->peer->info->link_status_changed(vc->peer); |
298 | a083a89d | Michael S. Tsirkin | } |
299 | a083a89d | Michael S. Tsirkin | qemu_cleanup_vlan_client(vc); |
300 | a083a89d | Michael S. Tsirkin | return;
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301 | a083a89d | Michael S. Tsirkin | } |
302 | a083a89d | Michael S. Tsirkin | |
303 | a083a89d | Michael S. Tsirkin | /* If this is a peer NIC and peer has already been deleted, free it now. */
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304 | 2be64a68 | Laszlo Ersek | if (!vc->vlan && vc->peer && vc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
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305 | a083a89d | Michael S. Tsirkin | NICState *nic = DO_UPCAST(NICState, nc, vc); |
306 | a083a89d | Michael S. Tsirkin | if (nic->peer_deleted) {
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307 | a083a89d | Michael S. Tsirkin | qemu_free_vlan_client(vc->peer); |
308 | a083a89d | Michael S. Tsirkin | } |
309 | a083a89d | Michael S. Tsirkin | } |
310 | a083a89d | Michael S. Tsirkin | |
311 | a083a89d | Michael S. Tsirkin | qemu_cleanup_vlan_client(vc); |
312 | a083a89d | Michael S. Tsirkin | qemu_free_vlan_client(vc); |
313 | a083a89d | Michael S. Tsirkin | } |
314 | a083a89d | Michael S. Tsirkin | |
315 | 68ac40d2 | Mark McLoughlin | VLANClientState * |
316 | 1a609520 | Jan Kiszka | qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
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317 | 1a609520 | Jan Kiszka | const char *client_str) |
318 | 1a609520 | Jan Kiszka | { |
319 | 1a609520 | Jan Kiszka | VLANState *vlan; |
320 | 1a609520 | Jan Kiszka | VLANClientState *vc; |
321 | 1a609520 | Jan Kiszka | |
322 | 1a609520 | Jan Kiszka | vlan = qemu_find_vlan(vlan_id, 0);
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323 | 1a609520 | Jan Kiszka | if (!vlan) {
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324 | 1a609520 | Jan Kiszka | monitor_printf(mon, "unknown VLAN %d\n", vlan_id);
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325 | 1a609520 | Jan Kiszka | return NULL; |
326 | 1a609520 | Jan Kiszka | } |
327 | 1a609520 | Jan Kiszka | |
328 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
329 | 1a609520 | Jan Kiszka | if (!strcmp(vc->name, client_str)) {
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330 | 1a609520 | Jan Kiszka | break;
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331 | 1a609520 | Jan Kiszka | } |
332 | 1a609520 | Jan Kiszka | } |
333 | 1a609520 | Jan Kiszka | if (!vc) {
|
334 | 1a609520 | Jan Kiszka | monitor_printf(mon, "can't find device %s on VLAN %d\n",
|
335 | 1a609520 | Jan Kiszka | client_str, vlan_id); |
336 | 1a609520 | Jan Kiszka | } |
337 | 1a609520 | Jan Kiszka | |
338 | 1a609520 | Jan Kiszka | return vc;
|
339 | 1a609520 | Jan Kiszka | } |
340 | 1a609520 | Jan Kiszka | |
341 | 57f9ef17 | Mark McLoughlin | void qemu_foreach_nic(qemu_nic_foreach func, void *opaque) |
342 | 57f9ef17 | Mark McLoughlin | { |
343 | 57f9ef17 | Mark McLoughlin | VLANClientState *nc; |
344 | 57f9ef17 | Mark McLoughlin | VLANState *vlan; |
345 | 57f9ef17 | Mark McLoughlin | |
346 | 57f9ef17 | Mark McLoughlin | QTAILQ_FOREACH(nc, &non_vlan_clients, next) { |
347 | 2be64a68 | Laszlo Ersek | if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
|
348 | 57f9ef17 | Mark McLoughlin | func(DO_UPCAST(NICState, nc, nc), opaque); |
349 | 57f9ef17 | Mark McLoughlin | } |
350 | 57f9ef17 | Mark McLoughlin | } |
351 | 57f9ef17 | Mark McLoughlin | |
352 | 57f9ef17 | Mark McLoughlin | QTAILQ_FOREACH(vlan, &vlans, next) { |
353 | 57f9ef17 | Mark McLoughlin | QTAILQ_FOREACH(nc, &vlan->clients, next) { |
354 | 2be64a68 | Laszlo Ersek | if (nc->info->type == NET_CLIENT_OPTIONS_KIND_NIC) {
|
355 | 57f9ef17 | Mark McLoughlin | func(DO_UPCAST(NICState, nc, nc), opaque); |
356 | 57f9ef17 | Mark McLoughlin | } |
357 | 57f9ef17 | Mark McLoughlin | } |
358 | 57f9ef17 | Mark McLoughlin | } |
359 | 57f9ef17 | Mark McLoughlin | } |
360 | 57f9ef17 | Mark McLoughlin | |
361 | 2e1e0641 | Mark McLoughlin | int qemu_can_send_packet(VLANClientState *sender)
|
362 | 63a01ef8 | aliguori | { |
363 | 2e1e0641 | Mark McLoughlin | VLANState *vlan = sender->vlan; |
364 | 63a01ef8 | aliguori | VLANClientState *vc; |
365 | 63a01ef8 | aliguori | |
366 | 9a6ecb30 | Mark McLoughlin | if (sender->peer) {
|
367 | 893379ef | Mark McLoughlin | if (sender->peer->receive_disabled) {
|
368 | 893379ef | Mark McLoughlin | return 0; |
369 | 665a3b07 | Mark McLoughlin | } else if (sender->peer->info->can_receive && |
370 | 665a3b07 | Mark McLoughlin | !sender->peer->info->can_receive(sender->peer)) { |
371 | 9a6ecb30 | Mark McLoughlin | return 0; |
372 | 893379ef | Mark McLoughlin | } else {
|
373 | 893379ef | Mark McLoughlin | return 1; |
374 | 9a6ecb30 | Mark McLoughlin | } |
375 | 9a6ecb30 | Mark McLoughlin | } |
376 | 9a6ecb30 | Mark McLoughlin | |
377 | d80b9fc6 | Mark McLoughlin | if (!sender->vlan) {
|
378 | d80b9fc6 | Mark McLoughlin | return 1; |
379 | d80b9fc6 | Mark McLoughlin | } |
380 | d80b9fc6 | Mark McLoughlin | |
381 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
382 | 2e1e0641 | Mark McLoughlin | if (vc == sender) {
|
383 | 2e1e0641 | Mark McLoughlin | continue;
|
384 | 2e1e0641 | Mark McLoughlin | } |
385 | 2e1e0641 | Mark McLoughlin | |
386 | cda9046b | Mark McLoughlin | /* no can_receive() handler, they can always receive */
|
387 | 60c07d93 | Vincent Palatin | if (vc->info->can_receive && !vc->info->can_receive(vc)) {
|
388 | 60c07d93 | Vincent Palatin | return 0; |
389 | 63a01ef8 | aliguori | } |
390 | 63a01ef8 | aliguori | } |
391 | 60c07d93 | Vincent Palatin | return 1; |
392 | 63a01ef8 | aliguori | } |
393 | 63a01ef8 | aliguori | |
394 | 9a6ecb30 | Mark McLoughlin | static ssize_t qemu_deliver_packet(VLANClientState *sender,
|
395 | c0b8e49c | Mark McLoughlin | unsigned flags,
|
396 | 9a6ecb30 | Mark McLoughlin | const uint8_t *data,
|
397 | 9a6ecb30 | Mark McLoughlin | size_t size, |
398 | 9a6ecb30 | Mark McLoughlin | void *opaque)
|
399 | 9a6ecb30 | Mark McLoughlin | { |
400 | 9a6ecb30 | Mark McLoughlin | VLANClientState *vc = opaque; |
401 | 893379ef | Mark McLoughlin | ssize_t ret; |
402 | 9a6ecb30 | Mark McLoughlin | |
403 | 9a6ecb30 | Mark McLoughlin | if (vc->link_down) {
|
404 | 9a6ecb30 | Mark McLoughlin | return size;
|
405 | 9a6ecb30 | Mark McLoughlin | } |
406 | 9a6ecb30 | Mark McLoughlin | |
407 | 893379ef | Mark McLoughlin | if (vc->receive_disabled) {
|
408 | 893379ef | Mark McLoughlin | return 0; |
409 | 893379ef | Mark McLoughlin | } |
410 | 893379ef | Mark McLoughlin | |
411 | 665a3b07 | Mark McLoughlin | if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) {
|
412 | 665a3b07 | Mark McLoughlin | ret = vc->info->receive_raw(vc, data, size); |
413 | 893379ef | Mark McLoughlin | } else {
|
414 | 665a3b07 | Mark McLoughlin | ret = vc->info->receive(vc, data, size); |
415 | 893379ef | Mark McLoughlin | } |
416 | 893379ef | Mark McLoughlin | |
417 | 893379ef | Mark McLoughlin | if (ret == 0) { |
418 | 893379ef | Mark McLoughlin | vc->receive_disabled = 1;
|
419 | 893379ef | Mark McLoughlin | }; |
420 | 893379ef | Mark McLoughlin | |
421 | 893379ef | Mark McLoughlin | return ret;
|
422 | 9a6ecb30 | Mark McLoughlin | } |
423 | 9a6ecb30 | Mark McLoughlin | |
424 | f7105843 | Mark McLoughlin | static ssize_t qemu_vlan_deliver_packet(VLANClientState *sender,
|
425 | c0b8e49c | Mark McLoughlin | unsigned flags,
|
426 | f7105843 | Mark McLoughlin | const uint8_t *buf,
|
427 | f7105843 | Mark McLoughlin | size_t size, |
428 | f7105843 | Mark McLoughlin | void *opaque)
|
429 | 63a01ef8 | aliguori | { |
430 | f7105843 | Mark McLoughlin | VLANState *vlan = opaque; |
431 | 63a01ef8 | aliguori | VLANClientState *vc; |
432 | 893379ef | Mark McLoughlin | ssize_t ret = -1;
|
433 | 63a01ef8 | aliguori | |
434 | f7105843 | Mark McLoughlin | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
435 | 3e021d40 | Mark McLoughlin | ssize_t len; |
436 | 3e021d40 | Mark McLoughlin | |
437 | 3e021d40 | Mark McLoughlin | if (vc == sender) {
|
438 | 3e021d40 | Mark McLoughlin | continue;
|
439 | 764a4d1d | aliguori | } |
440 | 3e021d40 | Mark McLoughlin | |
441 | 3e021d40 | Mark McLoughlin | if (vc->link_down) {
|
442 | 3e021d40 | Mark McLoughlin | ret = size; |
443 | 3e021d40 | Mark McLoughlin | continue;
|
444 | 3e021d40 | Mark McLoughlin | } |
445 | 3e021d40 | Mark McLoughlin | |
446 | 893379ef | Mark McLoughlin | if (vc->receive_disabled) {
|
447 | 893379ef | Mark McLoughlin | ret = 0;
|
448 | 893379ef | Mark McLoughlin | continue;
|
449 | 893379ef | Mark McLoughlin | } |
450 | 893379ef | Mark McLoughlin | |
451 | 665a3b07 | Mark McLoughlin | if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) {
|
452 | 665a3b07 | Mark McLoughlin | len = vc->info->receive_raw(vc, buf, size); |
453 | 893379ef | Mark McLoughlin | } else {
|
454 | 665a3b07 | Mark McLoughlin | len = vc->info->receive(vc, buf, size); |
455 | 893379ef | Mark McLoughlin | } |
456 | 893379ef | Mark McLoughlin | |
457 | 893379ef | Mark McLoughlin | if (len == 0) { |
458 | 893379ef | Mark McLoughlin | vc->receive_disabled = 1;
|
459 | 893379ef | Mark McLoughlin | } |
460 | 3e021d40 | Mark McLoughlin | |
461 | 3e021d40 | Mark McLoughlin | ret = (ret >= 0) ? ret : len;
|
462 | 893379ef | Mark McLoughlin | |
463 | 764a4d1d | aliguori | } |
464 | 3e021d40 | Mark McLoughlin | |
465 | 3e021d40 | Mark McLoughlin | return ret;
|
466 | 764a4d1d | aliguori | } |
467 | 764a4d1d | aliguori | |
468 | 8cad5516 | Mark McLoughlin | void qemu_purge_queued_packets(VLANClientState *vc)
|
469 | 8cad5516 | Mark McLoughlin | { |
470 | 9a6ecb30 | Mark McLoughlin | NetQueue *queue; |
471 | 9a6ecb30 | Mark McLoughlin | |
472 | 9a6ecb30 | Mark McLoughlin | if (!vc->peer && !vc->vlan) {
|
473 | d80b9fc6 | Mark McLoughlin | return;
|
474 | 9a6ecb30 | Mark McLoughlin | } |
475 | d80b9fc6 | Mark McLoughlin | |
476 | 9a6ecb30 | Mark McLoughlin | if (vc->peer) {
|
477 | 9a6ecb30 | Mark McLoughlin | queue = vc->peer->send_queue; |
478 | 9a6ecb30 | Mark McLoughlin | } else {
|
479 | 9a6ecb30 | Mark McLoughlin | queue = vc->vlan->send_queue; |
480 | 9a6ecb30 | Mark McLoughlin | } |
481 | 9a6ecb30 | Mark McLoughlin | |
482 | 9a6ecb30 | Mark McLoughlin | qemu_net_queue_purge(queue, vc); |
483 | 8cad5516 | Mark McLoughlin | } |
484 | 8cad5516 | Mark McLoughlin | |
485 | f3b6c7fc | Mark McLoughlin | void qemu_flush_queued_packets(VLANClientState *vc)
|
486 | e94667b9 | Mark McLoughlin | { |
487 | 9a6ecb30 | Mark McLoughlin | NetQueue *queue; |
488 | 9a6ecb30 | Mark McLoughlin | |
489 | 893379ef | Mark McLoughlin | vc->receive_disabled = 0;
|
490 | 893379ef | Mark McLoughlin | |
491 | 9a6ecb30 | Mark McLoughlin | if (vc->vlan) {
|
492 | 9a6ecb30 | Mark McLoughlin | queue = vc->vlan->send_queue; |
493 | 9a6ecb30 | Mark McLoughlin | } else {
|
494 | 9a6ecb30 | Mark McLoughlin | queue = vc->send_queue; |
495 | 9a6ecb30 | Mark McLoughlin | } |
496 | d80b9fc6 | Mark McLoughlin | |
497 | 9a6ecb30 | Mark McLoughlin | qemu_net_queue_flush(queue); |
498 | e94667b9 | Mark McLoughlin | } |
499 | e94667b9 | Mark McLoughlin | |
500 | ca77d175 | Mark McLoughlin | static ssize_t qemu_send_packet_async_with_flags(VLANClientState *sender,
|
501 | ca77d175 | Mark McLoughlin | unsigned flags,
|
502 | ca77d175 | Mark McLoughlin | const uint8_t *buf, int size, |
503 | ca77d175 | Mark McLoughlin | NetPacketSent *sent_cb) |
504 | 764a4d1d | aliguori | { |
505 | 9a6ecb30 | Mark McLoughlin | NetQueue *queue; |
506 | 436e5e53 | aliguori | |
507 | 63a01ef8 | aliguori | #ifdef DEBUG_NET
|
508 | d80b9fc6 | Mark McLoughlin | printf("qemu_send_packet_async:\n");
|
509 | 63a01ef8 | aliguori | hex_dump(stdout, buf, size); |
510 | 63a01ef8 | aliguori | #endif
|
511 | f3b6c7fc | Mark McLoughlin | |
512 | 9a6ecb30 | Mark McLoughlin | if (sender->link_down || (!sender->peer && !sender->vlan)) {
|
513 | 9a6ecb30 | Mark McLoughlin | return size;
|
514 | 9a6ecb30 | Mark McLoughlin | } |
515 | 9a6ecb30 | Mark McLoughlin | |
516 | 9a6ecb30 | Mark McLoughlin | if (sender->peer) {
|
517 | 9a6ecb30 | Mark McLoughlin | queue = sender->peer->send_queue; |
518 | 9a6ecb30 | Mark McLoughlin | } else {
|
519 | 9a6ecb30 | Mark McLoughlin | queue = sender->vlan->send_queue; |
520 | 9a6ecb30 | Mark McLoughlin | } |
521 | 9a6ecb30 | Mark McLoughlin | |
522 | ca77d175 | Mark McLoughlin | return qemu_net_queue_send(queue, sender, flags, buf, size, sent_cb);
|
523 | ca77d175 | Mark McLoughlin | } |
524 | ca77d175 | Mark McLoughlin | |
525 | ca77d175 | Mark McLoughlin | ssize_t qemu_send_packet_async(VLANClientState *sender, |
526 | ca77d175 | Mark McLoughlin | const uint8_t *buf, int size, |
527 | ca77d175 | Mark McLoughlin | NetPacketSent *sent_cb) |
528 | ca77d175 | Mark McLoughlin | { |
529 | ca77d175 | Mark McLoughlin | return qemu_send_packet_async_with_flags(sender, QEMU_NET_PACKET_FLAG_NONE,
|
530 | ca77d175 | Mark McLoughlin | buf, size, sent_cb); |
531 | f3b6c7fc | Mark McLoughlin | } |
532 | f3b6c7fc | Mark McLoughlin | |
533 | f3b6c7fc | Mark McLoughlin | void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size) |
534 | f3b6c7fc | Mark McLoughlin | { |
535 | f3b6c7fc | Mark McLoughlin | qemu_send_packet_async(vc, buf, size, NULL);
|
536 | 63a01ef8 | aliguori | } |
537 | 63a01ef8 | aliguori | |
538 | ca77d175 | Mark McLoughlin | ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size) |
539 | ca77d175 | Mark McLoughlin | { |
540 | ca77d175 | Mark McLoughlin | return qemu_send_packet_async_with_flags(vc, QEMU_NET_PACKET_FLAG_RAW,
|
541 | ca77d175 | Mark McLoughlin | buf, size, NULL);
|
542 | ca77d175 | Mark McLoughlin | } |
543 | ca77d175 | Mark McLoughlin | |
544 | fbe78f4f | aliguori | static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, |
545 | fbe78f4f | aliguori | int iovcnt)
|
546 | fbe78f4f | aliguori | { |
547 | fbe78f4f | aliguori | uint8_t buffer[4096];
|
548 | ce053661 | Benjamin Poirier | size_t offset; |
549 | fbe78f4f | aliguori | |
550 | dcf6f5e1 | Michael Tokarev | offset = iov_to_buf(iov, iovcnt, 0, buffer, sizeof(buffer)); |
551 | fbe78f4f | aliguori | |
552 | 665a3b07 | Mark McLoughlin | return vc->info->receive(vc, buffer, offset);
|
553 | fbe78f4f | aliguori | } |
554 | fbe78f4f | aliguori | |
555 | 9a6ecb30 | Mark McLoughlin | static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
|
556 | c0b8e49c | Mark McLoughlin | unsigned flags,
|
557 | 9a6ecb30 | Mark McLoughlin | const struct iovec *iov, |
558 | 9a6ecb30 | Mark McLoughlin | int iovcnt,
|
559 | 9a6ecb30 | Mark McLoughlin | void *opaque)
|
560 | 9a6ecb30 | Mark McLoughlin | { |
561 | 9a6ecb30 | Mark McLoughlin | VLANClientState *vc = opaque; |
562 | 9a6ecb30 | Mark McLoughlin | |
563 | 9a6ecb30 | Mark McLoughlin | if (vc->link_down) {
|
564 | ce053661 | Benjamin Poirier | return iov_size(iov, iovcnt);
|
565 | 9a6ecb30 | Mark McLoughlin | } |
566 | 9a6ecb30 | Mark McLoughlin | |
567 | 665a3b07 | Mark McLoughlin | if (vc->info->receive_iov) {
|
568 | 665a3b07 | Mark McLoughlin | return vc->info->receive_iov(vc, iov, iovcnt);
|
569 | 9a6ecb30 | Mark McLoughlin | } else {
|
570 | 9a6ecb30 | Mark McLoughlin | return vc_sendv_compat(vc, iov, iovcnt);
|
571 | 9a6ecb30 | Mark McLoughlin | } |
572 | 9a6ecb30 | Mark McLoughlin | } |
573 | 9a6ecb30 | Mark McLoughlin | |
574 | f7105843 | Mark McLoughlin | static ssize_t qemu_vlan_deliver_packet_iov(VLANClientState *sender,
|
575 | c0b8e49c | Mark McLoughlin | unsigned flags,
|
576 | f7105843 | Mark McLoughlin | const struct iovec *iov, |
577 | f7105843 | Mark McLoughlin | int iovcnt,
|
578 | f7105843 | Mark McLoughlin | void *opaque)
|
579 | fbe78f4f | aliguori | { |
580 | f7105843 | Mark McLoughlin | VLANState *vlan = opaque; |
581 | fbe78f4f | aliguori | VLANClientState *vc; |
582 | f7105843 | Mark McLoughlin | ssize_t ret = -1;
|
583 | e94667b9 | Mark McLoughlin | |
584 | f7105843 | Mark McLoughlin | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
585 | e94667b9 | Mark McLoughlin | ssize_t len; |
586 | e94667b9 | Mark McLoughlin | |
587 | e94667b9 | Mark McLoughlin | if (vc == sender) {
|
588 | e94667b9 | Mark McLoughlin | continue;
|
589 | e94667b9 | Mark McLoughlin | } |
590 | e94667b9 | Mark McLoughlin | |
591 | e94667b9 | Mark McLoughlin | if (vc->link_down) {
|
592 | ce053661 | Benjamin Poirier | ret = iov_size(iov, iovcnt); |
593 | e94667b9 | Mark McLoughlin | continue;
|
594 | e94667b9 | Mark McLoughlin | } |
595 | e94667b9 | Mark McLoughlin | |
596 | ca77d175 | Mark McLoughlin | assert(!(flags & QEMU_NET_PACKET_FLAG_RAW)); |
597 | ca77d175 | Mark McLoughlin | |
598 | 665a3b07 | Mark McLoughlin | if (vc->info->receive_iov) {
|
599 | 665a3b07 | Mark McLoughlin | len = vc->info->receive_iov(vc, iov, iovcnt); |
600 | e94667b9 | Mark McLoughlin | } else {
|
601 | e94667b9 | Mark McLoughlin | len = vc_sendv_compat(vc, iov, iovcnt); |
602 | e94667b9 | Mark McLoughlin | } |
603 | e94667b9 | Mark McLoughlin | |
604 | e94667b9 | Mark McLoughlin | ret = (ret >= 0) ? ret : len;
|
605 | e94667b9 | Mark McLoughlin | } |
606 | e94667b9 | Mark McLoughlin | |
607 | e94667b9 | Mark McLoughlin | return ret;
|
608 | e94667b9 | Mark McLoughlin | } |
609 | e94667b9 | Mark McLoughlin | |
610 | f3b6c7fc | Mark McLoughlin | ssize_t qemu_sendv_packet_async(VLANClientState *sender, |
611 | f3b6c7fc | Mark McLoughlin | const struct iovec *iov, int iovcnt, |
612 | f3b6c7fc | Mark McLoughlin | NetPacketSent *sent_cb) |
613 | e94667b9 | Mark McLoughlin | { |
614 | 9a6ecb30 | Mark McLoughlin | NetQueue *queue; |
615 | 9a6ecb30 | Mark McLoughlin | |
616 | 9a6ecb30 | Mark McLoughlin | if (sender->link_down || (!sender->peer && !sender->vlan)) {
|
617 | ce053661 | Benjamin Poirier | return iov_size(iov, iovcnt);
|
618 | e94667b9 | Mark McLoughlin | } |
619 | e94667b9 | Mark McLoughlin | |
620 | 9a6ecb30 | Mark McLoughlin | if (sender->peer) {
|
621 | 9a6ecb30 | Mark McLoughlin | queue = sender->peer->send_queue; |
622 | 9a6ecb30 | Mark McLoughlin | } else {
|
623 | 9a6ecb30 | Mark McLoughlin | queue = sender->vlan->send_queue; |
624 | 9a6ecb30 | Mark McLoughlin | } |
625 | 9a6ecb30 | Mark McLoughlin | |
626 | c0b8e49c | Mark McLoughlin | return qemu_net_queue_send_iov(queue, sender,
|
627 | c0b8e49c | Mark McLoughlin | QEMU_NET_PACKET_FLAG_NONE, |
628 | c0b8e49c | Mark McLoughlin | iov, iovcnt, sent_cb); |
629 | fbe78f4f | aliguori | } |
630 | fbe78f4f | aliguori | |
631 | f3b6c7fc | Mark McLoughlin | ssize_t |
632 | f3b6c7fc | Mark McLoughlin | qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt) |
633 | f3b6c7fc | Mark McLoughlin | { |
634 | f3b6c7fc | Mark McLoughlin | return qemu_sendv_packet_async(vc, iov, iovcnt, NULL); |
635 | f3b6c7fc | Mark McLoughlin | } |
636 | f3b6c7fc | Mark McLoughlin | |
637 | 63a01ef8 | aliguori | /* find or alloc a new VLAN */
|
638 | 1a609520 | Jan Kiszka | VLANState *qemu_find_vlan(int id, int allocate) |
639 | 63a01ef8 | aliguori | { |
640 | 5610c3aa | Mark McLoughlin | VLANState *vlan; |
641 | 5610c3aa | Mark McLoughlin | |
642 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH(vlan, &vlans, next) { |
643 | 5610c3aa | Mark McLoughlin | if (vlan->id == id) {
|
644 | 63a01ef8 | aliguori | return vlan;
|
645 | 5610c3aa | Mark McLoughlin | } |
646 | 63a01ef8 | aliguori | } |
647 | 5610c3aa | Mark McLoughlin | |
648 | 1a609520 | Jan Kiszka | if (!allocate) {
|
649 | 1a609520 | Jan Kiszka | return NULL; |
650 | 1a609520 | Jan Kiszka | } |
651 | 5610c3aa | Mark McLoughlin | |
652 | 7267c094 | Anthony Liguori | vlan = g_malloc0(sizeof(VLANState));
|
653 | 63a01ef8 | aliguori | vlan->id = id; |
654 | 5610c3aa | Mark McLoughlin | QTAILQ_INIT(&vlan->clients); |
655 | f7105843 | Mark McLoughlin | |
656 | f7105843 | Mark McLoughlin | vlan->send_queue = qemu_new_net_queue(qemu_vlan_deliver_packet, |
657 | f7105843 | Mark McLoughlin | qemu_vlan_deliver_packet_iov, |
658 | f7105843 | Mark McLoughlin | vlan); |
659 | 5610c3aa | Mark McLoughlin | |
660 | 5610c3aa | Mark McLoughlin | QTAILQ_INSERT_TAIL(&vlans, vlan, next); |
661 | 5610c3aa | Mark McLoughlin | |
662 | 63a01ef8 | aliguori | return vlan;
|
663 | 63a01ef8 | aliguori | } |
664 | 63a01ef8 | aliguori | |
665 | 2ef924b4 | Gerd Hoffmann | VLANClientState *qemu_find_netdev(const char *id) |
666 | 5869c4d5 | Mark McLoughlin | { |
667 | 5869c4d5 | Mark McLoughlin | VLANClientState *vc; |
668 | 5869c4d5 | Mark McLoughlin | |
669 | 5869c4d5 | Mark McLoughlin | QTAILQ_FOREACH(vc, &non_vlan_clients, next) { |
670 | 2be64a68 | Laszlo Ersek | if (vc->info->type == NET_CLIENT_OPTIONS_KIND_NIC)
|
671 | 85dde9a9 | Markus Armbruster | continue;
|
672 | 5869c4d5 | Mark McLoughlin | if (!strcmp(vc->name, id)) {
|
673 | 5869c4d5 | Mark McLoughlin | return vc;
|
674 | 5869c4d5 | Mark McLoughlin | } |
675 | 5869c4d5 | Mark McLoughlin | } |
676 | 5869c4d5 | Mark McLoughlin | |
677 | 5869c4d5 | Mark McLoughlin | return NULL; |
678 | 5869c4d5 | Mark McLoughlin | } |
679 | 5869c4d5 | Mark McLoughlin | |
680 | 7697079b | aliguori | static int nic_get_free_idx(void) |
681 | 7697079b | aliguori | { |
682 | 7697079b | aliguori | int index;
|
683 | 7697079b | aliguori | |
684 | 7697079b | aliguori | for (index = 0; index < MAX_NICS; index++) |
685 | 7697079b | aliguori | if (!nd_table[index].used)
|
686 | 7697079b | aliguori | return index;
|
687 | 7697079b | aliguori | return -1; |
688 | 7697079b | aliguori | } |
689 | 7697079b | aliguori | |
690 | 07caea31 | Markus Armbruster | int qemu_show_nic_models(const char *arg, const char *const *models) |
691 | 07caea31 | Markus Armbruster | { |
692 | 07caea31 | Markus Armbruster | int i;
|
693 | 07caea31 | Markus Armbruster | |
694 | 07caea31 | Markus Armbruster | if (!arg || strcmp(arg, "?")) |
695 | 07caea31 | Markus Armbruster | return 0; |
696 | 07caea31 | Markus Armbruster | |
697 | 07caea31 | Markus Armbruster | fprintf(stderr, "qemu: Supported NIC models: ");
|
698 | 07caea31 | Markus Armbruster | for (i = 0 ; models[i]; i++) |
699 | 07caea31 | Markus Armbruster | fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); |
700 | 07caea31 | Markus Armbruster | return 1; |
701 | 07caea31 | Markus Armbruster | } |
702 | 07caea31 | Markus Armbruster | |
703 | d07f22c5 | aliguori | void qemu_check_nic_model(NICInfo *nd, const char *model) |
704 | d07f22c5 | aliguori | { |
705 | d07f22c5 | aliguori | const char *models[2]; |
706 | d07f22c5 | aliguori | |
707 | d07f22c5 | aliguori | models[0] = model;
|
708 | d07f22c5 | aliguori | models[1] = NULL; |
709 | d07f22c5 | aliguori | |
710 | 07caea31 | Markus Armbruster | if (qemu_show_nic_models(nd->model, models))
|
711 | 07caea31 | Markus Armbruster | exit(0);
|
712 | 07caea31 | Markus Armbruster | if (qemu_find_nic_model(nd, models, model) < 0) |
713 | 07caea31 | Markus Armbruster | exit(1);
|
714 | d07f22c5 | aliguori | } |
715 | d07f22c5 | aliguori | |
716 | 07caea31 | Markus Armbruster | int qemu_find_nic_model(NICInfo *nd, const char * const *models, |
717 | 07caea31 | Markus Armbruster | const char *default_model) |
718 | d07f22c5 | aliguori | { |
719 | 07caea31 | Markus Armbruster | int i;
|
720 | d07f22c5 | aliguori | |
721 | d07f22c5 | aliguori | if (!nd->model)
|
722 | 7267c094 | Anthony Liguori | nd->model = g_strdup(default_model); |
723 | d07f22c5 | aliguori | |
724 | 07caea31 | Markus Armbruster | for (i = 0 ; models[i]; i++) { |
725 | 07caea31 | Markus Armbruster | if (strcmp(nd->model, models[i]) == 0) |
726 | 07caea31 | Markus Armbruster | return i;
|
727 | d07f22c5 | aliguori | } |
728 | d07f22c5 | aliguori | |
729 | 6daf194d | Markus Armbruster | error_report("Unsupported NIC model: %s", nd->model);
|
730 | 07caea31 | Markus Armbruster | return -1; |
731 | d07f22c5 | aliguori | } |
732 | d07f22c5 | aliguori | |
733 | 5281d757 | Mark McLoughlin | int net_handle_fd_param(Monitor *mon, const char *param) |
734 | c1d6eed7 | Mark McLoughlin | { |
735 | f7c31d63 | Jason Wang | int fd;
|
736 | f7c31d63 | Jason Wang | |
737 | f7c31d63 | Jason Wang | if (!qemu_isdigit(param[0]) && mon) { |
738 | c1d6eed7 | Mark McLoughlin | |
739 | c1d6eed7 | Mark McLoughlin | fd = monitor_get_fd(mon, param); |
740 | c1d6eed7 | Mark McLoughlin | if (fd == -1) { |
741 | 1ecda02b | Markus Armbruster | error_report("No file descriptor named %s found", param);
|
742 | c1d6eed7 | Mark McLoughlin | return -1; |
743 | c1d6eed7 | Mark McLoughlin | } |
744 | c1d6eed7 | Mark McLoughlin | } else {
|
745 | 443916d1 | Stefan Berger | fd = qemu_parse_fd(param); |
746 | c1d6eed7 | Mark McLoughlin | } |
747 | f7c31d63 | Jason Wang | |
748 | f7c31d63 | Jason Wang | return fd;
|
749 | c1d6eed7 | Mark McLoughlin | } |
750 | c1d6eed7 | Mark McLoughlin | |
751 | 1a0c0958 | Laszlo Ersek | static int net_init_nic(const NetClientOptions *opts, const char *name, |
752 | 1a0c0958 | Laszlo Ersek | VLANState *vlan) |
753 | f83c6e10 | Mark McLoughlin | { |
754 | f83c6e10 | Mark McLoughlin | int idx;
|
755 | f83c6e10 | Mark McLoughlin | NICInfo *nd; |
756 | 2456f36f | Laszlo Ersek | const NetLegacyNicOptions *nic;
|
757 | 2456f36f | Laszlo Ersek | |
758 | 2456f36f | Laszlo Ersek | assert(opts->kind == NET_CLIENT_OPTIONS_KIND_NIC); |
759 | 2456f36f | Laszlo Ersek | nic = opts->nic; |
760 | f83c6e10 | Mark McLoughlin | |
761 | f83c6e10 | Mark McLoughlin | idx = nic_get_free_idx(); |
762 | f83c6e10 | Mark McLoughlin | if (idx == -1 || nb_nics >= MAX_NICS) { |
763 | 1ecda02b | Markus Armbruster | error_report("Too Many NICs");
|
764 | f83c6e10 | Mark McLoughlin | return -1; |
765 | f83c6e10 | Mark McLoughlin | } |
766 | f83c6e10 | Mark McLoughlin | |
767 | f83c6e10 | Mark McLoughlin | nd = &nd_table[idx]; |
768 | f83c6e10 | Mark McLoughlin | |
769 | f83c6e10 | Mark McLoughlin | memset(nd, 0, sizeof(*nd)); |
770 | f83c6e10 | Mark McLoughlin | |
771 | 2456f36f | Laszlo Ersek | if (nic->has_netdev) {
|
772 | 2456f36f | Laszlo Ersek | nd->netdev = qemu_find_netdev(nic->netdev); |
773 | 5869c4d5 | Mark McLoughlin | if (!nd->netdev) {
|
774 | 2456f36f | Laszlo Ersek | error_report("netdev '%s' not found", nic->netdev);
|
775 | 5869c4d5 | Mark McLoughlin | return -1; |
776 | 5869c4d5 | Mark McLoughlin | } |
777 | 5869c4d5 | Mark McLoughlin | } else {
|
778 | 5869c4d5 | Mark McLoughlin | assert(vlan); |
779 | 5869c4d5 | Mark McLoughlin | nd->vlan = vlan; |
780 | 5869c4d5 | Mark McLoughlin | } |
781 | 6d952ebe | Mark McLoughlin | if (name) {
|
782 | 7267c094 | Anthony Liguori | nd->name = g_strdup(name); |
783 | 6d952ebe | Mark McLoughlin | } |
784 | 2456f36f | Laszlo Ersek | if (nic->has_model) {
|
785 | 2456f36f | Laszlo Ersek | nd->model = g_strdup(nic->model); |
786 | f83c6e10 | Mark McLoughlin | } |
787 | 2456f36f | Laszlo Ersek | if (nic->has_addr) {
|
788 | 2456f36f | Laszlo Ersek | nd->devaddr = g_strdup(nic->addr); |
789 | f83c6e10 | Mark McLoughlin | } |
790 | f83c6e10 | Mark McLoughlin | |
791 | 2456f36f | Laszlo Ersek | if (nic->has_macaddr &&
|
792 | 2456f36f | Laszlo Ersek | net_parse_macaddr(nd->macaddr.a, nic->macaddr) < 0) {
|
793 | 1ecda02b | Markus Armbruster | error_report("invalid syntax for ethernet address");
|
794 | f83c6e10 | Mark McLoughlin | return -1; |
795 | f83c6e10 | Mark McLoughlin | } |
796 | 6eed1856 | Jan Kiszka | qemu_macaddr_default_if_unset(&nd->macaddr); |
797 | f83c6e10 | Mark McLoughlin | |
798 | 2456f36f | Laszlo Ersek | if (nic->has_vectors) {
|
799 | 2456f36f | Laszlo Ersek | if (nic->vectors > 0x7ffffff) { |
800 | 2456f36f | Laszlo Ersek | error_report("invalid # of vectors: %"PRIu32, nic->vectors);
|
801 | 2456f36f | Laszlo Ersek | return -1; |
802 | 2456f36f | Laszlo Ersek | } |
803 | 2456f36f | Laszlo Ersek | nd->nvectors = nic->vectors; |
804 | 2456f36f | Laszlo Ersek | } else {
|
805 | 2456f36f | Laszlo Ersek | nd->nvectors = DEV_NVECTORS_UNSPECIFIED; |
806 | f83c6e10 | Mark McLoughlin | } |
807 | f83c6e10 | Mark McLoughlin | |
808 | f83c6e10 | Mark McLoughlin | nd->used = 1;
|
809 | f83c6e10 | Mark McLoughlin | nb_nics++; |
810 | f83c6e10 | Mark McLoughlin | |
811 | f83c6e10 | Mark McLoughlin | return idx;
|
812 | f83c6e10 | Mark McLoughlin | } |
813 | f83c6e10 | Mark McLoughlin | |
814 | 6687b79d | Laszlo Ersek | |
815 | 6687b79d | Laszlo Ersek | static int (* const net_client_init_fun[NET_CLIENT_OPTIONS_KIND_MAX])( |
816 | 1a0c0958 | Laszlo Ersek | const NetClientOptions *opts,
|
817 | 6687b79d | Laszlo Ersek | const char *name, |
818 | 6687b79d | Laszlo Ersek | VLANState *vlan) = { |
819 | 6687b79d | Laszlo Ersek | [NET_CLIENT_OPTIONS_KIND_NIC] = net_init_nic, |
820 | ec302ffd | Mark McLoughlin | #ifdef CONFIG_SLIRP
|
821 | 6687b79d | Laszlo Ersek | [NET_CLIENT_OPTIONS_KIND_USER] = net_init_slirp, |
822 | 2944e4ec | Stefan Weil | #endif
|
823 | 6687b79d | Laszlo Ersek | [NET_CLIENT_OPTIONS_KIND_TAP] = net_init_tap, |
824 | 6687b79d | Laszlo Ersek | [NET_CLIENT_OPTIONS_KIND_SOCKET] = net_init_socket, |
825 | dd51058d | Mark McLoughlin | #ifdef CONFIG_VDE
|
826 | 6687b79d | Laszlo Ersek | [NET_CLIENT_OPTIONS_KIND_VDE] = net_init_vde, |
827 | dd51058d | Mark McLoughlin | #endif
|
828 | 6687b79d | Laszlo Ersek | [NET_CLIENT_OPTIONS_KIND_DUMP] = net_init_dump, |
829 | 2944e4ec | Stefan Weil | #ifdef CONFIG_NET_BRIDGE
|
830 | 6687b79d | Laszlo Ersek | [NET_CLIENT_OPTIONS_KIND_BRIDGE] = net_init_bridge, |
831 | 6687b79d | Laszlo Ersek | #endif
|
832 | f83c6e10 | Mark McLoughlin | }; |
833 | f83c6e10 | Mark McLoughlin | |
834 | 6687b79d | Laszlo Ersek | |
835 | 1a0c0958 | Laszlo Ersek | static int net_client_init1(const void *object, int is_netdev, Error **errp) |
836 | f83c6e10 | Mark McLoughlin | { |
837 | 6687b79d | Laszlo Ersek | union {
|
838 | 6687b79d | Laszlo Ersek | const Netdev *netdev;
|
839 | 6687b79d | Laszlo Ersek | const NetLegacy *net;
|
840 | 6687b79d | Laszlo Ersek | } u; |
841 | 6687b79d | Laszlo Ersek | const NetClientOptions *opts;
|
842 | 6d952ebe | Mark McLoughlin | const char *name; |
843 | f83c6e10 | Mark McLoughlin | |
844 | 5294e2c7 | Markus Armbruster | if (is_netdev) {
|
845 | 6687b79d | Laszlo Ersek | u.netdev = object; |
846 | 6687b79d | Laszlo Ersek | opts = u.netdev->opts; |
847 | 6687b79d | Laszlo Ersek | name = u.netdev->id; |
848 | 6687b79d | Laszlo Ersek | |
849 | 6687b79d | Laszlo Ersek | switch (opts->kind) {
|
850 | f6b134ac | Mark McLoughlin | #ifdef CONFIG_SLIRP
|
851 | 6687b79d | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_USER:
|
852 | f6b134ac | Mark McLoughlin | #endif
|
853 | 6687b79d | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_TAP:
|
854 | 6687b79d | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_SOCKET:
|
855 | f6b134ac | Mark McLoughlin | #ifdef CONFIG_VDE
|
856 | 6687b79d | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_VDE:
|
857 | 6687b79d | Laszlo Ersek | #endif
|
858 | 6687b79d | Laszlo Ersek | #ifdef CONFIG_NET_BRIDGE
|
859 | 6687b79d | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_BRIDGE:
|
860 | f6b134ac | Mark McLoughlin | #endif
|
861 | 6687b79d | Laszlo Ersek | break;
|
862 | 6687b79d | Laszlo Ersek | |
863 | 6687b79d | Laszlo Ersek | default:
|
864 | 4559a1db | Luiz Capitulino | error_set(errp, QERR_INVALID_PARAMETER_VALUE, "type",
|
865 | 4559a1db | Luiz Capitulino | "a netdev backend type");
|
866 | f6b134ac | Mark McLoughlin | return -1; |
867 | f6b134ac | Mark McLoughlin | } |
868 | 6687b79d | Laszlo Ersek | } else {
|
869 | 6687b79d | Laszlo Ersek | u.net = object; |
870 | 6687b79d | Laszlo Ersek | opts = u.net->opts; |
871 | 6687b79d | Laszlo Ersek | /* missing optional values have been initialized to "all bits zero" */
|
872 | 6687b79d | Laszlo Ersek | name = u.net->has_id ? u.net->id : u.net->name; |
873 | 6687b79d | Laszlo Ersek | } |
874 | f6b134ac | Mark McLoughlin | |
875 | 6687b79d | Laszlo Ersek | if (net_client_init_fun[opts->kind]) {
|
876 | 6687b79d | Laszlo Ersek | VLANState *vlan = NULL;
|
877 | 6687b79d | Laszlo Ersek | |
878 | 6687b79d | Laszlo Ersek | /* Do not add to a vlan if it's a -netdev or a nic with a netdev=
|
879 | 6687b79d | Laszlo Ersek | * parameter. */
|
880 | 6687b79d | Laszlo Ersek | if (!is_netdev &&
|
881 | 6687b79d | Laszlo Ersek | (opts->kind != NET_CLIENT_OPTIONS_KIND_NIC || |
882 | 6687b79d | Laszlo Ersek | !opts->nic->has_netdev)) { |
883 | 6687b79d | Laszlo Ersek | vlan = qemu_find_vlan(u.net->has_vlan ? u.net->vlan : 0, true); |
884 | f6b134ac | Mark McLoughlin | } |
885 | 6687b79d | Laszlo Ersek | |
886 | 1a0c0958 | Laszlo Ersek | if (net_client_init_fun[opts->kind](opts, name, vlan) < 0) { |
887 | 6687b79d | Laszlo Ersek | /* TODO push error reporting into init() methods */
|
888 | 6687b79d | Laszlo Ersek | error_set(errp, QERR_DEVICE_INIT_FAILED, |
889 | 6687b79d | Laszlo Ersek | NetClientOptionsKind_lookup[opts->kind]); |
890 | f6b134ac | Mark McLoughlin | return -1; |
891 | f6b134ac | Mark McLoughlin | } |
892 | f6b134ac | Mark McLoughlin | } |
893 | 6687b79d | Laszlo Ersek | return 0; |
894 | 6687b79d | Laszlo Ersek | } |
895 | 6687b79d | Laszlo Ersek | |
896 | f6b134ac | Mark McLoughlin | |
897 | 6687b79d | Laszlo Ersek | static void net_visit(Visitor *v, int is_netdev, void **object, Error **errp) |
898 | 6687b79d | Laszlo Ersek | { |
899 | 6687b79d | Laszlo Ersek | if (is_netdev) {
|
900 | 6687b79d | Laszlo Ersek | visit_type_Netdev(v, (Netdev **)object, NULL, errp);
|
901 | 6687b79d | Laszlo Ersek | } else {
|
902 | 6687b79d | Laszlo Ersek | visit_type_NetLegacy(v, (NetLegacy **)object, NULL, errp);
|
903 | 6d952ebe | Mark McLoughlin | } |
904 | 6687b79d | Laszlo Ersek | } |
905 | 6d952ebe | Mark McLoughlin | |
906 | f6b134ac | Mark McLoughlin | |
907 | 6687b79d | Laszlo Ersek | int net_client_init(QemuOpts *opts, int is_netdev, Error **errp) |
908 | 6687b79d | Laszlo Ersek | { |
909 | 6687b79d | Laszlo Ersek | void *object = NULL; |
910 | 6687b79d | Laszlo Ersek | Error *err = NULL;
|
911 | 6687b79d | Laszlo Ersek | int ret = -1; |
912 | f83c6e10 | Mark McLoughlin | |
913 | 6687b79d | Laszlo Ersek | { |
914 | 6687b79d | Laszlo Ersek | OptsVisitor *ov = opts_visitor_new(opts); |
915 | f6b134ac | Mark McLoughlin | |
916 | 6687b79d | Laszlo Ersek | net_visit(opts_get_visitor(ov), is_netdev, &object, &err); |
917 | 6687b79d | Laszlo Ersek | opts_visitor_cleanup(ov); |
918 | f83c6e10 | Mark McLoughlin | } |
919 | f83c6e10 | Mark McLoughlin | |
920 | 6687b79d | Laszlo Ersek | if (!err) {
|
921 | 1a0c0958 | Laszlo Ersek | ret = net_client_init1(object, is_netdev, &err); |
922 | 6687b79d | Laszlo Ersek | } |
923 | 6687b79d | Laszlo Ersek | |
924 | 6687b79d | Laszlo Ersek | if (object) {
|
925 | 6687b79d | Laszlo Ersek | QapiDeallocVisitor *dv = qapi_dealloc_visitor_new(); |
926 | 6687b79d | Laszlo Ersek | |
927 | 6687b79d | Laszlo Ersek | net_visit(qapi_dealloc_get_visitor(dv), is_netdev, &object, NULL);
|
928 | 6687b79d | Laszlo Ersek | qapi_dealloc_visitor_cleanup(dv); |
929 | 6687b79d | Laszlo Ersek | } |
930 | 6687b79d | Laszlo Ersek | |
931 | 6687b79d | Laszlo Ersek | error_propagate(errp, err); |
932 | 6687b79d | Laszlo Ersek | return ret;
|
933 | f83c6e10 | Mark McLoughlin | } |
934 | f83c6e10 | Mark McLoughlin | |
935 | 6687b79d | Laszlo Ersek | |
936 | 6f338c34 | aliguori | static int net_host_check_device(const char *device) |
937 | 6f338c34 | aliguori | { |
938 | 6f338c34 | aliguori | int i;
|
939 | bb9ea79e | aliguori | const char *valid_param_list[] = { "tap", "socket", "dump" |
940 | 2944e4ec | Stefan Weil | #ifdef CONFIG_NET_BRIDGE
|
941 | 2944e4ec | Stefan Weil | , "bridge"
|
942 | 2944e4ec | Stefan Weil | #endif
|
943 | 6f338c34 | aliguori | #ifdef CONFIG_SLIRP
|
944 | 6f338c34 | aliguori | ,"user"
|
945 | 6f338c34 | aliguori | #endif
|
946 | 6f338c34 | aliguori | #ifdef CONFIG_VDE
|
947 | 6f338c34 | aliguori | ,"vde"
|
948 | 6f338c34 | aliguori | #endif
|
949 | 6f338c34 | aliguori | }; |
950 | 6f338c34 | aliguori | for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { |
951 | 6f338c34 | aliguori | if (!strncmp(valid_param_list[i], device,
|
952 | 6f338c34 | aliguori | strlen(valid_param_list[i]))) |
953 | 6f338c34 | aliguori | return 1; |
954 | 6f338c34 | aliguori | } |
955 | 6f338c34 | aliguori | |
956 | 6f338c34 | aliguori | return 0; |
957 | 6f338c34 | aliguori | } |
958 | 6f338c34 | aliguori | |
959 | f18c16de | Luiz Capitulino | void net_host_device_add(Monitor *mon, const QDict *qdict) |
960 | 6f338c34 | aliguori | { |
961 | f18c16de | Luiz Capitulino | const char *device = qdict_get_str(qdict, "device"); |
962 | 7f1c9d20 | Mark McLoughlin | const char *opts_str = qdict_get_try_str(qdict, "opts"); |
963 | 4559a1db | Luiz Capitulino | Error *local_err = NULL;
|
964 | 7f1c9d20 | Mark McLoughlin | QemuOpts *opts; |
965 | f18c16de | Luiz Capitulino | |
966 | 6f338c34 | aliguori | if (!net_host_check_device(device)) {
|
967 | 376253ec | aliguori | monitor_printf(mon, "invalid host network device %s\n", device);
|
968 | 6f338c34 | aliguori | return;
|
969 | 6f338c34 | aliguori | } |
970 | 7f1c9d20 | Mark McLoughlin | |
971 | 3329f07b | Gerd Hoffmann | opts = qemu_opts_parse(qemu_find_opts("net"), opts_str ? opts_str : "", 0); |
972 | 7f1c9d20 | Mark McLoughlin | if (!opts) {
|
973 | 7f1c9d20 | Mark McLoughlin | return;
|
974 | 7f1c9d20 | Mark McLoughlin | } |
975 | 7f1c9d20 | Mark McLoughlin | |
976 | 7f1c9d20 | Mark McLoughlin | qemu_opt_set(opts, "type", device);
|
977 | 7f1c9d20 | Mark McLoughlin | |
978 | 4559a1db | Luiz Capitulino | net_client_init(opts, 0, &local_err);
|
979 | 4559a1db | Luiz Capitulino | if (error_is_set(&local_err)) {
|
980 | 4559a1db | Luiz Capitulino | qerror_report_err(local_err); |
981 | 4559a1db | Luiz Capitulino | error_free(local_err); |
982 | 5c8be678 | aliguori | monitor_printf(mon, "adding host network device %s failed\n", device);
|
983 | 5c8be678 | aliguori | } |
984 | 6f338c34 | aliguori | } |
985 | 6f338c34 | aliguori | |
986 | f18c16de | Luiz Capitulino | void net_host_device_remove(Monitor *mon, const QDict *qdict) |
987 | 6f338c34 | aliguori | { |
988 | 6f338c34 | aliguori | VLANClientState *vc; |
989 | f18c16de | Luiz Capitulino | int vlan_id = qdict_get_int(qdict, "vlan_id"); |
990 | f18c16de | Luiz Capitulino | const char *device = qdict_get_str(qdict, "device"); |
991 | 6f338c34 | aliguori | |
992 | 1a609520 | Jan Kiszka | vc = qemu_find_vlan_client_by_name(mon, vlan_id, device); |
993 | 6f338c34 | aliguori | if (!vc) {
|
994 | 6f338c34 | aliguori | return;
|
995 | 6f338c34 | aliguori | } |
996 | e8f1f9db | aliguori | if (!net_host_check_device(vc->model)) {
|
997 | e8f1f9db | aliguori | monitor_printf(mon, "invalid host network device %s\n", device);
|
998 | e8f1f9db | aliguori | return;
|
999 | e8f1f9db | aliguori | } |
1000 | 6f338c34 | aliguori | qemu_del_vlan_client(vc); |
1001 | 6f338c34 | aliguori | } |
1002 | 6f338c34 | aliguori | |
1003 | 928059a3 | Luiz Capitulino | void netdev_add(QemuOpts *opts, Error **errp)
|
1004 | 928059a3 | Luiz Capitulino | { |
1005 | 928059a3 | Luiz Capitulino | net_client_init(opts, 1, errp);
|
1006 | 928059a3 | Luiz Capitulino | } |
1007 | 928059a3 | Luiz Capitulino | |
1008 | 928059a3 | Luiz Capitulino | int qmp_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret) |
1009 | ae82d324 | Markus Armbruster | { |
1010 | 4e89978e | Luiz Capitulino | Error *local_err = NULL;
|
1011 | 928059a3 | Luiz Capitulino | QemuOptsList *opts_list; |
1012 | ae82d324 | Markus Armbruster | QemuOpts *opts; |
1013 | ae82d324 | Markus Armbruster | |
1014 | 928059a3 | Luiz Capitulino | opts_list = qemu_find_opts_err("netdev", &local_err);
|
1015 | 928059a3 | Luiz Capitulino | if (error_is_set(&local_err)) {
|
1016 | 928059a3 | Luiz Capitulino | goto exit_err;
|
1017 | ae82d324 | Markus Armbruster | } |
1018 | ae82d324 | Markus Armbruster | |
1019 | 928059a3 | Luiz Capitulino | opts = qemu_opts_from_qdict(opts_list, qdict, &local_err); |
1020 | 928059a3 | Luiz Capitulino | if (error_is_set(&local_err)) {
|
1021 | 928059a3 | Luiz Capitulino | goto exit_err;
|
1022 | 928059a3 | Luiz Capitulino | } |
1023 | 928059a3 | Luiz Capitulino | |
1024 | 928059a3 | Luiz Capitulino | netdev_add(opts, &local_err); |
1025 | 928059a3 | Luiz Capitulino | if (error_is_set(&local_err)) {
|
1026 | 410cbafe | Yoshiaki Tamura | qemu_opts_del(opts); |
1027 | 928059a3 | Luiz Capitulino | goto exit_err;
|
1028 | 410cbafe | Yoshiaki Tamura | } |
1029 | 410cbafe | Yoshiaki Tamura | |
1030 | 928059a3 | Luiz Capitulino | return 0; |
1031 | 928059a3 | Luiz Capitulino | |
1032 | 928059a3 | Luiz Capitulino | exit_err:
|
1033 | 928059a3 | Luiz Capitulino | qerror_report_err(local_err); |
1034 | 928059a3 | Luiz Capitulino | error_free(local_err); |
1035 | 928059a3 | Luiz Capitulino | return -1; |
1036 | ae82d324 | Markus Armbruster | } |
1037 | ae82d324 | Markus Armbruster | |
1038 | 5f964155 | Luiz Capitulino | void qmp_netdev_del(const char *id, Error **errp) |
1039 | ae82d324 | Markus Armbruster | { |
1040 | ae82d324 | Markus Armbruster | VLANClientState *vc; |
1041 | ae82d324 | Markus Armbruster | |
1042 | ae82d324 | Markus Armbruster | vc = qemu_find_netdev(id); |
1043 | 85dde9a9 | Markus Armbruster | if (!vc) {
|
1044 | 5f964155 | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, id); |
1045 | 5f964155 | Luiz Capitulino | return;
|
1046 | ae82d324 | Markus Armbruster | } |
1047 | 5f964155 | Luiz Capitulino | |
1048 | ae82d324 | Markus Armbruster | qemu_del_vlan_client(vc); |
1049 | 5f964155 | Luiz Capitulino | qemu_opts_del(qemu_opts_find(qemu_find_opts_err("netdev", errp), id));
|
1050 | ae82d324 | Markus Armbruster | } |
1051 | ae82d324 | Markus Armbruster | |
1052 | 44e798d3 | Jan Kiszka | static void print_net_client(Monitor *mon, VLANClientState *vc) |
1053 | 44e798d3 | Jan Kiszka | { |
1054 | 44e798d3 | Jan Kiszka | monitor_printf(mon, "%s: type=%s,%s\n", vc->name,
|
1055 | 6687b79d | Laszlo Ersek | NetClientOptionsKind_lookup[vc->info->type], vc->info_str); |
1056 | 44e798d3 | Jan Kiszka | } |
1057 | 44e798d3 | Jan Kiszka | |
1058 | 376253ec | aliguori | void do_info_network(Monitor *mon)
|
1059 | 63a01ef8 | aliguori | { |
1060 | 63a01ef8 | aliguori | VLANState *vlan; |
1061 | 19061e63 | Jan Kiszka | VLANClientState *vc, *peer; |
1062 | 2be64a68 | Laszlo Ersek | NetClientOptionsKind type; |
1063 | 63a01ef8 | aliguori | |
1064 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH(vlan, &vlans, next) { |
1065 | 376253ec | aliguori | monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
|
1066 | 5610c3aa | Mark McLoughlin | |
1067 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
1068 | 44e798d3 | Jan Kiszka | monitor_printf(mon, " ");
|
1069 | 44e798d3 | Jan Kiszka | print_net_client(mon, vc); |
1070 | 5610c3aa | Mark McLoughlin | } |
1071 | 63a01ef8 | aliguori | } |
1072 | a0104e0e | Markus Armbruster | monitor_printf(mon, "Devices not on any VLAN:\n");
|
1073 | a0104e0e | Markus Armbruster | QTAILQ_FOREACH(vc, &non_vlan_clients, next) { |
1074 | 19061e63 | Jan Kiszka | peer = vc->peer; |
1075 | 19061e63 | Jan Kiszka | type = vc->info->type; |
1076 | 2be64a68 | Laszlo Ersek | if (!peer || type == NET_CLIENT_OPTIONS_KIND_NIC) {
|
1077 | 44e798d3 | Jan Kiszka | monitor_printf(mon, " ");
|
1078 | 44e798d3 | Jan Kiszka | print_net_client(mon, vc); |
1079 | 19061e63 | Jan Kiszka | } /* else it's a netdev connected to a NIC, printed with the NIC */
|
1080 | 2be64a68 | Laszlo Ersek | if (peer && type == NET_CLIENT_OPTIONS_KIND_NIC) {
|
1081 | 44e798d3 | Jan Kiszka | monitor_printf(mon, " \\ ");
|
1082 | 44e798d3 | Jan Kiszka | print_net_client(mon, peer); |
1083 | a0104e0e | Markus Armbruster | } |
1084 | a0104e0e | Markus Armbruster | } |
1085 | 63a01ef8 | aliguori | } |
1086 | 63a01ef8 | aliguori | |
1087 | 4b37156c | Luiz Capitulino | void qmp_set_link(const char *name, bool up, Error **errp) |
1088 | 436e5e53 | aliguori | { |
1089 | 436e5e53 | aliguori | VLANState *vlan; |
1090 | 436e5e53 | aliguori | VLANClientState *vc = NULL;
|
1091 | 436e5e53 | aliguori | |
1092 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH(vlan, &vlans, next) { |
1093 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
1094 | 5610c3aa | Mark McLoughlin | if (strcmp(vc->name, name) == 0) { |
1095 | dd5de373 | edgar_igl | goto done;
|
1096 | 5610c3aa | Mark McLoughlin | } |
1097 | 5610c3aa | Mark McLoughlin | } |
1098 | 5610c3aa | Mark McLoughlin | } |
1099 | 85dde9a9 | Markus Armbruster | QTAILQ_FOREACH(vc, &non_vlan_clients, next) { |
1100 | 85dde9a9 | Markus Armbruster | if (!strcmp(vc->name, name)) {
|
1101 | 85dde9a9 | Markus Armbruster | goto done;
|
1102 | 85dde9a9 | Markus Armbruster | } |
1103 | 85dde9a9 | Markus Armbruster | } |
1104 | dd5de373 | edgar_igl | done:
|
1105 | 436e5e53 | aliguori | |
1106 | 436e5e53 | aliguori | if (!vc) {
|
1107 | 4b37156c | Luiz Capitulino | error_set(errp, QERR_DEVICE_NOT_FOUND, name); |
1108 | 4b37156c | Luiz Capitulino | return;
|
1109 | 436e5e53 | aliguori | } |
1110 | 436e5e53 | aliguori | |
1111 | c9b26a4c | Markus Armbruster | vc->link_down = !up; |
1112 | 436e5e53 | aliguori | |
1113 | 665a3b07 | Mark McLoughlin | if (vc->info->link_status_changed) {
|
1114 | 665a3b07 | Mark McLoughlin | vc->info->link_status_changed(vc); |
1115 | 665a3b07 | Mark McLoughlin | } |
1116 | ab1cbe1c | Michael S. Tsirkin | |
1117 | ab1cbe1c | Michael S. Tsirkin | /* Notify peer. Don't update peer link status: this makes it possible to
|
1118 | ab1cbe1c | Michael S. Tsirkin | * disconnect from host network without notifying the guest.
|
1119 | ab1cbe1c | Michael S. Tsirkin | * FIXME: is disconnected link status change operation useful?
|
1120 | ab1cbe1c | Michael S. Tsirkin | *
|
1121 | ab1cbe1c | Michael S. Tsirkin | * Current behaviour is compatible with qemu vlans where there could be
|
1122 | ab1cbe1c | Michael S. Tsirkin | * multiple clients that can still communicate with each other in
|
1123 | ab1cbe1c | Michael S. Tsirkin | * disconnected mode. For now maintain this compatibility. */
|
1124 | ab1cbe1c | Michael S. Tsirkin | if (vc->peer && vc->peer->info->link_status_changed) {
|
1125 | ab1cbe1c | Michael S. Tsirkin | vc->peer->info->link_status_changed(vc->peer); |
1126 | ab1cbe1c | Michael S. Tsirkin | } |
1127 | 436e5e53 | aliguori | } |
1128 | 436e5e53 | aliguori | |
1129 | 63a01ef8 | aliguori | void net_cleanup(void) |
1130 | 63a01ef8 | aliguori | { |
1131 | 63a01ef8 | aliguori | VLANState *vlan; |
1132 | 577c4af9 | Mark McLoughlin | VLANClientState *vc, *next_vc; |
1133 | 63a01ef8 | aliguori | |
1134 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH(vlan, &vlans, next) { |
1135 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH_SAFE(vc, &vlan->clients, next, next_vc) { |
1136 | b946a153 | aliguori | qemu_del_vlan_client(vc); |
1137 | 63a01ef8 | aliguori | } |
1138 | 63a01ef8 | aliguori | } |
1139 | 577c4af9 | Mark McLoughlin | |
1140 | 577c4af9 | Mark McLoughlin | QTAILQ_FOREACH_SAFE(vc, &non_vlan_clients, next, next_vc) { |
1141 | 577c4af9 | Mark McLoughlin | qemu_del_vlan_client(vc); |
1142 | 577c4af9 | Mark McLoughlin | } |
1143 | 63a01ef8 | aliguori | } |
1144 | 63a01ef8 | aliguori | |
1145 | 668680f7 | Markus Armbruster | void net_check_clients(void) |
1146 | 63a01ef8 | aliguori | { |
1147 | 63a01ef8 | aliguori | VLANState *vlan; |
1148 | 62112d18 | Markus Armbruster | VLANClientState *vc; |
1149 | 48e2faf2 | Peter Maydell | int i;
|
1150 | 63a01ef8 | aliguori | |
1151 | 641f6eae | Peter Maydell | /* Don't warn about the default network setup that you get if
|
1152 | 641f6eae | Peter Maydell | * no command line -net or -netdev options are specified. There
|
1153 | 641f6eae | Peter Maydell | * are two cases that we would otherwise complain about:
|
1154 | 641f6eae | Peter Maydell | * (1) board doesn't support a NIC but the implicit "-net nic"
|
1155 | 641f6eae | Peter Maydell | * requested one
|
1156 | 641f6eae | Peter Maydell | * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
|
1157 | 641f6eae | Peter Maydell | * sets up a nic that isn't connected to anything.
|
1158 | 641f6eae | Peter Maydell | */
|
1159 | 641f6eae | Peter Maydell | if (default_net) {
|
1160 | 641f6eae | Peter Maydell | return;
|
1161 | 641f6eae | Peter Maydell | } |
1162 | 641f6eae | Peter Maydell | |
1163 | 5610c3aa | Mark McLoughlin | QTAILQ_FOREACH(vlan, &vlans, next) { |
1164 | ac60cc18 | Tristan Gingold | int has_nic = 0, has_host_dev = 0; |
1165 | ac60cc18 | Tristan Gingold | |
1166 | 62112d18 | Markus Armbruster | QTAILQ_FOREACH(vc, &vlan->clients, next) { |
1167 | 62112d18 | Markus Armbruster | switch (vc->info->type) {
|
1168 | 2be64a68 | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_NIC:
|
1169 | 62112d18 | Markus Armbruster | has_nic = 1;
|
1170 | 62112d18 | Markus Armbruster | break;
|
1171 | 2be64a68 | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_USER:
|
1172 | 2be64a68 | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_TAP:
|
1173 | 2be64a68 | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_SOCKET:
|
1174 | 2be64a68 | Laszlo Ersek | case NET_CLIENT_OPTIONS_KIND_VDE:
|
1175 | 62112d18 | Markus Armbruster | has_host_dev = 1;
|
1176 | 62112d18 | Markus Armbruster | break;
|
1177 | 62112d18 | Markus Armbruster | default: ;
|
1178 | 62112d18 | Markus Armbruster | } |
1179 | 62112d18 | Markus Armbruster | } |
1180 | 62112d18 | Markus Armbruster | if (has_host_dev && !has_nic)
|
1181 | 63a01ef8 | aliguori | fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
|
1182 | 62112d18 | Markus Armbruster | if (has_nic && !has_host_dev)
|
1183 | 63a01ef8 | aliguori | fprintf(stderr, |
1184 | 63a01ef8 | aliguori | "Warning: vlan %d is not connected to host network\n",
|
1185 | 63a01ef8 | aliguori | vlan->id); |
1186 | 63a01ef8 | aliguori | } |
1187 | efe32fdd | Markus Armbruster | QTAILQ_FOREACH(vc, &non_vlan_clients, next) { |
1188 | efe32fdd | Markus Armbruster | if (!vc->peer) {
|
1189 | efe32fdd | Markus Armbruster | fprintf(stderr, "Warning: %s %s has no peer\n",
|
1190 | 2be64a68 | Laszlo Ersek | vc->info->type == NET_CLIENT_OPTIONS_KIND_NIC ? "nic" : "netdev", |
1191 | efe32fdd | Markus Armbruster | vc->name); |
1192 | efe32fdd | Markus Armbruster | } |
1193 | efe32fdd | Markus Armbruster | } |
1194 | 48e2faf2 | Peter Maydell | |
1195 | 48e2faf2 | Peter Maydell | /* Check that all NICs requested via -net nic actually got created.
|
1196 | 48e2faf2 | Peter Maydell | * NICs created via -device don't need to be checked here because
|
1197 | 48e2faf2 | Peter Maydell | * they are always instantiated.
|
1198 | 48e2faf2 | Peter Maydell | */
|
1199 | 48e2faf2 | Peter Maydell | for (i = 0; i < MAX_NICS; i++) { |
1200 | 48e2faf2 | Peter Maydell | NICInfo *nd = &nd_table[i]; |
1201 | 48e2faf2 | Peter Maydell | if (nd->used && !nd->instantiated) {
|
1202 | 48e2faf2 | Peter Maydell | fprintf(stderr, "Warning: requested NIC (%s, model %s) "
|
1203 | 48e2faf2 | Peter Maydell | "was not created (not supported by this machine?)\n",
|
1204 | 48e2faf2 | Peter Maydell | nd->name ? nd->name : "anonymous",
|
1205 | 48e2faf2 | Peter Maydell | nd->model ? nd->model : "unspecified");
|
1206 | 48e2faf2 | Peter Maydell | } |
1207 | 48e2faf2 | Peter Maydell | } |
1208 | 63a01ef8 | aliguori | } |
1209 | dc1c9fe8 | Mark McLoughlin | |
1210 | dc1c9fe8 | Mark McLoughlin | static int net_init_client(QemuOpts *opts, void *dummy) |
1211 | dc1c9fe8 | Mark McLoughlin | { |
1212 | 4559a1db | Luiz Capitulino | Error *local_err = NULL;
|
1213 | 4559a1db | Luiz Capitulino | |
1214 | 4559a1db | Luiz Capitulino | net_client_init(opts, 0, &local_err);
|
1215 | 4559a1db | Luiz Capitulino | if (error_is_set(&local_err)) {
|
1216 | 4559a1db | Luiz Capitulino | qerror_report_err(local_err); |
1217 | 4559a1db | Luiz Capitulino | error_free(local_err); |
1218 | c1671a08 | Mark McLoughlin | return -1; |
1219 | 4559a1db | Luiz Capitulino | } |
1220 | 4559a1db | Luiz Capitulino | |
1221 | c1671a08 | Mark McLoughlin | return 0; |
1222 | f6b134ac | Mark McLoughlin | } |
1223 | f6b134ac | Mark McLoughlin | |
1224 | f6b134ac | Mark McLoughlin | static int net_init_netdev(QemuOpts *opts, void *dummy) |
1225 | f6b134ac | Mark McLoughlin | { |
1226 | 4559a1db | Luiz Capitulino | Error *local_err = NULL;
|
1227 | 4559a1db | Luiz Capitulino | int ret;
|
1228 | 4559a1db | Luiz Capitulino | |
1229 | 4559a1db | Luiz Capitulino | ret = net_client_init(opts, 1, &local_err);
|
1230 | 4559a1db | Luiz Capitulino | if (error_is_set(&local_err)) {
|
1231 | 4559a1db | Luiz Capitulino | qerror_report_err(local_err); |
1232 | 4559a1db | Luiz Capitulino | error_free(local_err); |
1233 | 4559a1db | Luiz Capitulino | return -1; |
1234 | 4559a1db | Luiz Capitulino | } |
1235 | 4559a1db | Luiz Capitulino | |
1236 | 4559a1db | Luiz Capitulino | return ret;
|
1237 | dc1c9fe8 | Mark McLoughlin | } |
1238 | dc1c9fe8 | Mark McLoughlin | |
1239 | dc1c9fe8 | Mark McLoughlin | int net_init_clients(void) |
1240 | dc1c9fe8 | Mark McLoughlin | { |
1241 | 3329f07b | Gerd Hoffmann | QemuOptsList *net = qemu_find_opts("net");
|
1242 | 3329f07b | Gerd Hoffmann | |
1243 | cb4522cc | Gerd Hoffmann | if (default_net) {
|
1244 | dc1c9fe8 | Mark McLoughlin | /* if no clients, we use a default config */
|
1245 | 3329f07b | Gerd Hoffmann | qemu_opts_set(net, NULL, "type", "nic"); |
1246 | dc1c9fe8 | Mark McLoughlin | #ifdef CONFIG_SLIRP
|
1247 | 3329f07b | Gerd Hoffmann | qemu_opts_set(net, NULL, "type", "user"); |
1248 | dc1c9fe8 | Mark McLoughlin | #endif
|
1249 | dc1c9fe8 | Mark McLoughlin | } |
1250 | dc1c9fe8 | Mark McLoughlin | |
1251 | 5610c3aa | Mark McLoughlin | QTAILQ_INIT(&vlans); |
1252 | 577c4af9 | Mark McLoughlin | QTAILQ_INIT(&non_vlan_clients); |
1253 | 5610c3aa | Mark McLoughlin | |
1254 | 3329f07b | Gerd Hoffmann | if (qemu_opts_foreach(qemu_find_opts("netdev"), net_init_netdev, NULL, 1) == -1) |
1255 | f6b134ac | Mark McLoughlin | return -1; |
1256 | f6b134ac | Mark McLoughlin | |
1257 | 3329f07b | Gerd Hoffmann | if (qemu_opts_foreach(net, net_init_client, NULL, 1) == -1) { |
1258 | dc1c9fe8 | Mark McLoughlin | return -1; |
1259 | dc1c9fe8 | Mark McLoughlin | } |
1260 | dc1c9fe8 | Mark McLoughlin | |
1261 | dc1c9fe8 | Mark McLoughlin | return 0; |
1262 | dc1c9fe8 | Mark McLoughlin | } |
1263 | dc1c9fe8 | Mark McLoughlin | |
1264 | 7f161aae | Mark McLoughlin | int net_client_parse(QemuOptsList *opts_list, const char *optarg) |
1265 | dc1c9fe8 | Mark McLoughlin | { |
1266 | a3a766e7 | Juan Quintela | #if defined(CONFIG_SLIRP)
|
1267 | 68ac40d2 | Mark McLoughlin | int ret;
|
1268 | 68ac40d2 | Mark McLoughlin | if (net_slirp_parse_legacy(opts_list, optarg, &ret)) {
|
1269 | dc1c9fe8 | Mark McLoughlin | return ret;
|
1270 | dc1c9fe8 | Mark McLoughlin | } |
1271 | a3a766e7 | Juan Quintela | #endif
|
1272 | 68ac40d2 | Mark McLoughlin | |
1273 | 8212c64f | Markus Armbruster | if (!qemu_opts_parse(opts_list, optarg, 1)) { |
1274 | dc1c9fe8 | Mark McLoughlin | return -1; |
1275 | dc1c9fe8 | Mark McLoughlin | } |
1276 | dc1c9fe8 | Mark McLoughlin | |
1277 | cb4522cc | Gerd Hoffmann | default_net = 0;
|
1278 | dc1c9fe8 | Mark McLoughlin | return 0; |
1279 | dc1c9fe8 | Mark McLoughlin | } |
1280 | 7fc8d918 | Jason Wang | |
1281 | 7fc8d918 | Jason Wang | /* From FreeBSD */
|
1282 | 7fc8d918 | Jason Wang | /* XXX: optimize */
|
1283 | 7fc8d918 | Jason Wang | unsigned compute_mcast_idx(const uint8_t *ep) |
1284 | 7fc8d918 | Jason Wang | { |
1285 | 7fc8d918 | Jason Wang | uint32_t crc; |
1286 | 7fc8d918 | Jason Wang | int carry, i, j;
|
1287 | 7fc8d918 | Jason Wang | uint8_t b; |
1288 | 7fc8d918 | Jason Wang | |
1289 | 7fc8d918 | Jason Wang | crc = 0xffffffff;
|
1290 | 7fc8d918 | Jason Wang | for (i = 0; i < 6; i++) { |
1291 | 7fc8d918 | Jason Wang | b = *ep++; |
1292 | 7fc8d918 | Jason Wang | for (j = 0; j < 8; j++) { |
1293 | 7fc8d918 | Jason Wang | carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01); |
1294 | 7fc8d918 | Jason Wang | crc <<= 1;
|
1295 | 7fc8d918 | Jason Wang | b >>= 1;
|
1296 | 7fc8d918 | Jason Wang | if (carry) {
|
1297 | 7fc8d918 | Jason Wang | crc = ((crc ^ POLYNOMIAL) | carry); |
1298 | 7fc8d918 | Jason Wang | } |
1299 | 7fc8d918 | Jason Wang | } |
1300 | 7fc8d918 | Jason Wang | } |
1301 | 7fc8d918 | Jason Wang | return crc >> 26; |
1302 | 7fc8d918 | Jason Wang | } |