| @@ -1,323 +1,330 @@ | | | @@ -1,323 +1,330 @@ |
1 | /* $NetBSD: if_virt.c,v 1.18 2010/04/05 16:35:30 joerg Exp $ */ | | 1 | /* $NetBSD: if_virt.c,v 1.19 2010/08/10 18:06:10 pooka Exp $ */ |
2 | | | 2 | |
3 | /* | | 3 | /* |
4 | * Copyright (c) 2008 Antti Kantee. All Rights Reserved. | | 4 | * Copyright (c) 2008 Antti Kantee. All Rights Reserved. |
5 | * | | 5 | * |
6 | * Redistribution and use in source and binary forms, with or without | | 6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions | | 7 | * modification, are permitted provided that the following conditions |
8 | * are met: | | 8 | * are met: |
9 | * 1. Redistributions of source code must retain the above copyright | | 9 | * 1. Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. | | 10 | * notice, this list of conditions and the following disclaimer. |
11 | * 2. Redistributions in binary form must reproduce the above copyright | | 11 | * 2. Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the | | 12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. | | 13 | * documentation and/or other materials provided with the distribution. |
14 | * | | 14 | * |
15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS | | 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
16 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | | 16 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
17 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | | 17 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
18 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | | 18 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
19 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | | 19 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
20 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | | 20 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
21 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | | 21 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
22 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | | 22 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
23 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | | 23 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
24 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | | 24 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
25 | * SUCH DAMAGE. | | 25 | * SUCH DAMAGE. |
26 | */ | | 26 | */ |
27 | | | 27 | |
28 | #include <sys/cdefs.h> | | 28 | #include <sys/cdefs.h> |
29 | __KERNEL_RCSID(0, "$NetBSD: if_virt.c,v 1.18 2010/04/05 16:35:30 joerg Exp $"); | | 29 | __KERNEL_RCSID(0, "$NetBSD: if_virt.c,v 1.19 2010/08/10 18:06:10 pooka Exp $"); |
30 | | | 30 | |
31 | #include <sys/param.h> | | 31 | #include <sys/param.h> |
32 | #include <sys/condvar.h> | | 32 | #include <sys/condvar.h> |
33 | #include <sys/fcntl.h> | | 33 | #include <sys/fcntl.h> |
34 | #include <sys/kmem.h> | | 34 | #include <sys/kmem.h> |
35 | #include <sys/kthread.h> | | 35 | #include <sys/kthread.h> |
36 | #include <sys/mutex.h> | | 36 | #include <sys/mutex.h> |
37 | #include <sys/poll.h> | | 37 | #include <sys/poll.h> |
38 | #include <sys/sockio.h> | | 38 | #include <sys/sockio.h> |
39 | #include <sys/socketvar.h> | | 39 | #include <sys/socketvar.h> |
40 | | | 40 | |
41 | #include <net/bpf.h> | | 41 | #include <net/bpf.h> |
42 | #include <net/if.h> | | 42 | #include <net/if.h> |
43 | #include <net/if_ether.h> | | 43 | #include <net/if_ether.h> |
44 | #include <net/if_tap.h> | | 44 | #include <net/if_tap.h> |
45 | | | 45 | |
46 | #include <netinet/in.h> | | 46 | #include <netinet/in.h> |
47 | #include <netinet/in_var.h> | | 47 | #include <netinet/in_var.h> |
48 | | | 48 | |
49 | #include <rump/rump.h> | | 49 | #include <rump/rump.h> |
50 | #include <rump/rumpuser.h> | | 50 | #include <rump/rumpuser.h> |
51 | | | 51 | |
52 | #include "rump_private.h" | | 52 | #include "rump_private.h" |
53 | #include "rump_net_private.h" | | 53 | #include "rump_net_private.h" |
54 | | | 54 | |
55 | /* | | 55 | /* |
56 | * Virtual interface for userspace purposes. Uses tap(4) to | | 56 | * Virtual interface for userspace purposes. Uses tap(4) to |
57 | * interface with the kernel and just simply shovels data | | 57 | * interface with the kernel and just simply shovels data |
58 | * to/from /dev/tap. | | 58 | * to/from /dev/tap. |
59 | */ | | 59 | */ |
60 | | | 60 | |
61 | #define VIRTIF_BASE "virt" | | 61 | #define VIRTIF_BASE "virt" |
62 | | | 62 | |
63 | static int virtif_init(struct ifnet *); | | 63 | static int virtif_init(struct ifnet *); |
64 | static int virtif_ioctl(struct ifnet *, u_long, void *); | | 64 | static int virtif_ioctl(struct ifnet *, u_long, void *); |
65 | static void virtif_start(struct ifnet *); | | 65 | static void virtif_start(struct ifnet *); |
66 | static void virtif_stop(struct ifnet *, int); | | 66 | static void virtif_stop(struct ifnet *, int); |
67 | | | 67 | |
68 | struct virtif_sc { | | 68 | struct virtif_sc { |
69 | struct ethercom sc_ec; | | 69 | struct ethercom sc_ec; |
70 | int sc_tapfd; | | 70 | int sc_tapfd; |
71 | kmutex_t sc_sendmtx; | | 71 | kmutex_t sc_sendmtx; |
72 | kcondvar_t sc_sendcv; | | 72 | kcondvar_t sc_sendcv; |
73 | }; | | 73 | }; |
74 | | | 74 | |
75 | static void virtif_worker(void *); | | 75 | static void virtif_worker(void *); |
76 | static void virtif_sender(void *); | | 76 | static void virtif_sender(void *); |
77 | | | 77 | |
78 | #if 0 | | 78 | #if 0 |
79 | /* | | 79 | /* |
80 | * Create a socket and call ifioctl() to configure the interface. | | 80 | * Create a socket and call ifioctl() to configure the interface. |
81 | * This trickles down to virtif_ioctl(). | | 81 | * This trickles down to virtif_ioctl(). |
82 | */ | | 82 | */ |
83 | static int | | 83 | static int |
84 | configaddr(struct ifnet *ifp, struct ifaliasreq *ia) | | 84 | configaddr(struct ifnet *ifp, struct ifaliasreq *ia) |
85 | { | | 85 | { |
86 | struct socket *so; | | 86 | struct socket *so; |
87 | int error; | | 87 | int error; |
88 | | | 88 | |
89 | strcpy(ia->ifra_name, ifp->if_xname); | | 89 | strcpy(ia->ifra_name, ifp->if_xname); |
90 | error = socreate(ia->ifra_addr.sa_family, &so, SOCK_DGRAM, | | 90 | error = socreate(ia->ifra_addr.sa_family, &so, SOCK_DGRAM, |
91 | 0, curlwp, NULL); | | 91 | 0, curlwp, NULL); |
92 | if (error) | | 92 | if (error) |
93 | return error; | | 93 | return error; |
94 | error = ifioctl(so, SIOCAIFADDR, ia, curlwp); | | 94 | error = ifioctl(so, SIOCAIFADDR, ia, curlwp); |
95 | soclose(so); | | 95 | soclose(so); |
96 | | | 96 | |
97 | return error; | | 97 | return error; |
98 | } | | 98 | } |
99 | #endif | | 99 | #endif |
100 | | | 100 | |
101 | int | | 101 | int |
102 | rump_virtif_create(int num) | | 102 | rump_virtif_create(int num) |
103 | { | | 103 | { |
104 | struct virtif_sc *sc; | | 104 | struct virtif_sc *sc; |
105 | struct ifnet *ifp; | | 105 | struct ifnet *ifp; |
106 | uint8_t enaddr[ETHER_ADDR_LEN] = { 0xb2, 0x0a, 0x00, 0x0b, 0x0e, 0x01 }; | | 106 | uint8_t enaddr[ETHER_ADDR_LEN] = { 0xb2, 0x0a, 0x00, 0x0b, 0x0e, 0x01 }; |
107 | char tapdev[16]; | | 107 | char tapdev[16]; |
108 | int fd, error; | | 108 | int fd, error; |
109 | | | 109 | |
110 | snprintf(tapdev, sizeof(tapdev), "/dev/tap%d", num); | | 110 | snprintf(tapdev, sizeof(tapdev), "/dev/tap%d", num); |
111 | fd = rumpuser_open(tapdev, O_RDWR, &error); | | 111 | fd = rumpuser_open(tapdev, O_RDWR, &error); |
112 | if (fd == -1) { | | 112 | if (fd == -1) { |
113 | printf("virtif_create: can't open /dev/tap %d\n", error); | | 113 | printf("virtif_create: can't open /dev/tap%d: %d\n", |
| | | 114 | num, error); |
114 | return error; | | 115 | return error; |
115 | } | | 116 | } |
116 | KASSERT(num < 0x100); | | 117 | KASSERT(num < 0x100); |
117 | enaddr[2] = arc4random() & 0xff; | | 118 | enaddr[2] = arc4random() & 0xff; |
118 | enaddr[5] = num; | | 119 | enaddr[5] = num; |
119 | | | 120 | |
120 | sc = kmem_zalloc(sizeof(*sc), KM_SLEEP); | | 121 | sc = kmem_zalloc(sizeof(*sc), KM_SLEEP); |
121 | sc->sc_tapfd = fd; | | 122 | sc->sc_tapfd = fd; |
122 | | | 123 | |
123 | ifp = &sc->sc_ec.ec_if; | | 124 | ifp = &sc->sc_ec.ec_if; |
124 | sprintf(ifp->if_xname, "%s%d", VIRTIF_BASE, num); | | 125 | sprintf(ifp->if_xname, "%s%d", VIRTIF_BASE, num); |
125 | ifp->if_softc = sc; | | 126 | ifp->if_softc = sc; |
126 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; | | 127 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; |
127 | ifp->if_init = virtif_init; | | 128 | ifp->if_init = virtif_init; |
128 | ifp->if_ioctl = virtif_ioctl; | | 129 | ifp->if_ioctl = virtif_ioctl; |
129 | ifp->if_start = virtif_start; | | 130 | ifp->if_start = virtif_start; |
130 | ifp->if_stop = virtif_stop; | | 131 | ifp->if_stop = virtif_stop; |
131 | | | 132 | |
132 | mutex_init(&sc->sc_sendmtx, MUTEX_DEFAULT, IPL_NONE); | | 133 | mutex_init(&sc->sc_sendmtx, MUTEX_DEFAULT, IPL_NONE); |
133 | cv_init(&sc->sc_sendcv, "virtsnd"); | | 134 | cv_init(&sc->sc_sendcv, "virtsnd"); |
134 | | | 135 | |
135 | if_attach(ifp); | | 136 | if_attach(ifp); |
136 | ether_ifattach(ifp, enaddr); | | 137 | ether_ifattach(ifp, enaddr); |
137 | | | 138 | |
138 | return 0; | | 139 | return 0; |
139 | } | | 140 | } |
140 | | | 141 | |
141 | static int | | 142 | static int |
142 | virtif_init(struct ifnet *ifp) | | 143 | virtif_init(struct ifnet *ifp) |
143 | { | | 144 | { |
144 | int rv; | | 145 | int rv; |
145 | | | 146 | |
146 | if (rump_threads) { | | 147 | if (rump_threads) { |
147 | rv = kthread_create(PRI_NONE, 0, NULL, virtif_worker, ifp, | | 148 | rv = kthread_create(PRI_NONE, 0, NULL, virtif_worker, ifp, |
148 | NULL, "virtifi"); | | 149 | NULL, "virtifi"); |
149 | /* XXX: should do proper cleanup */ | | 150 | /* XXX: should do proper cleanup */ |
150 | if (rv) { | | 151 | if (rv) { |
151 | panic("if_virt: can't create worker"); | | 152 | panic("if_virt: can't create worker"); |
152 | } | | 153 | } |
153 | rv = kthread_create(PRI_NONE, 0, NULL, virtif_sender, ifp, | | 154 | rv = kthread_create(PRI_NONE, 0, NULL, virtif_sender, ifp, |
154 | NULL, "virtifs"); | | 155 | NULL, "virtifs"); |
155 | if (rv) { | | 156 | if (rv) { |
156 | panic("if_virt: can't create sender"); | | 157 | panic("if_virt: can't create sender"); |
157 | } | | 158 | } |
158 | } else { | | 159 | } else { |
159 | printf("WARNING: threads not enabled, receive NOT working\n"); | | 160 | printf("WARNING: threads not enabled, receive NOT working\n"); |
160 | } | | 161 | } |
161 | ifp->if_flags |= IFF_RUNNING; | | 162 | ifp->if_flags |= IFF_RUNNING; |
162 | | | 163 | |
163 | return 0; | | 164 | return 0; |
164 | } | | 165 | } |
165 | | | 166 | |
166 | static int | | 167 | static int |
167 | virtif_ioctl(struct ifnet *ifp, u_long cmd, void *data) | | 168 | virtif_ioctl(struct ifnet *ifp, u_long cmd, void *data) |
168 | { | | 169 | { |
169 | int s, rv; | | 170 | int s, rv; |
170 | | | 171 | |
171 | s = splnet(); | | 172 | s = splnet(); |
172 | rv = ether_ioctl(ifp, cmd, data); | | 173 | rv = ether_ioctl(ifp, cmd, data); |
173 | if (rv == ENETRESET) | | 174 | if (rv == ENETRESET) |
174 | rv = 0; | | 175 | rv = 0; |
175 | splx(s); | | 176 | splx(s); |
176 | | | 177 | |
177 | return rv; | | 178 | return rv; |
178 | } | | 179 | } |
179 | | | 180 | |
180 | /* just send everything in-context */ | | 181 | /* just send everything in-context */ |
181 | static void | | 182 | static void |
182 | virtif_start(struct ifnet *ifp) | | 183 | virtif_start(struct ifnet *ifp) |
183 | { | | 184 | { |
184 | struct virtif_sc *sc = ifp->if_softc; | | 185 | struct virtif_sc *sc = ifp->if_softc; |
185 | | | 186 | |
186 | mutex_enter(&sc->sc_sendmtx); | | 187 | mutex_enter(&sc->sc_sendmtx); |
187 | cv_signal(&sc->sc_sendcv); | | 188 | cv_signal(&sc->sc_sendcv); |
188 | mutex_exit(&sc->sc_sendmtx); | | 189 | mutex_exit(&sc->sc_sendmtx); |
189 | } | | 190 | } |
190 | | | 191 | |
191 | static void | | 192 | static void |
192 | virtif_stop(struct ifnet *ifp, int disable) | | 193 | virtif_stop(struct ifnet *ifp, int disable) |
193 | { | | 194 | { |
194 | | | 195 | |
195 | panic("%s: unimpl", __func__); | | 196 | panic("%s: unimpl", __func__); |
196 | } | | 197 | } |
197 | | | 198 | |
198 | static void | | 199 | static void |
199 | virtif_worker(void *arg) | | 200 | virtif_worker(void *arg) |
200 | { | | 201 | { |
201 | struct ifnet *ifp = arg; | | 202 | struct ifnet *ifp = arg; |
202 | struct virtif_sc *sc = ifp->if_softc; | | 203 | struct virtif_sc *sc = ifp->if_softc; |
203 | struct mbuf *m; | | 204 | struct mbuf *m; |
204 | size_t plen = ETHER_MAX_LEN_JUMBO+1; | | 205 | size_t plen = ETHER_MAX_LEN_JUMBO+1; |
205 | ssize_t n; | | 206 | ssize_t n; |
206 | int error; | | 207 | int error; |
207 | | | 208 | |
208 | for (;;) { | | 209 | for (;;) { |
209 | m = m_gethdr(M_WAIT, MT_DATA); | | 210 | m = m_gethdr(M_WAIT, MT_DATA); |
210 | MEXTMALLOC(m, plen, M_WAIT); | | 211 | MEXTMALLOC(m, plen, M_WAIT); |
211 | | | 212 | |
212 | again: | | 213 | again: |
213 | n = rumpuser_read(sc->sc_tapfd, mtod(m, void *), plen, &error); | | 214 | n = rumpuser_read(sc->sc_tapfd, mtod(m, void *), plen, &error); |
214 | KASSERT(n < ETHER_MAX_LEN_JUMBO); | | 215 | KASSERT(n < ETHER_MAX_LEN_JUMBO); |
215 | if (n <= 0) { | | 216 | if (__predict_false(n < 0)) { |
216 | /* | | 217 | /* |
217 | * work around tap bug: /dev/tap is opened in | | 218 | * work around tap bug: /dev/tap is opened in |
218 | * non-blocking mode if it previously was | | 219 | * non-blocking mode if it previously was |
219 | * non-blocking. | | 220 | * non-blocking. |
220 | */ | | 221 | */ |
221 | if (n == -1 && error == EAGAIN) { | | 222 | if (n == -1 && error == EAGAIN) { |
222 | struct pollfd pfd; | | 223 | struct pollfd pfd; |
223 | | | 224 | |
224 | pfd.fd = sc->sc_tapfd; | | 225 | pfd.fd = sc->sc_tapfd; |
225 | pfd.events = POLLIN; | | 226 | pfd.events = POLLIN; |
226 | | | 227 | |
227 | rumpuser_poll(&pfd, 1, INFTIM, &error); | | 228 | rumpuser_poll(&pfd, 1, INFTIM, &error); |
228 | goto again; | | 229 | goto again; |
229 | } | | 230 | } |
| | | 231 | |
230 | m_freem(m); | | 232 | m_freem(m); |
231 | break; | | 233 | break; |
232 | } | | 234 | } |
| | | 235 | |
| | | 236 | /* tap sometimes returns EOF. don't sweat it and plow on */ |
| | | 237 | if (__predict_false(n == 0)) |
| | | 238 | goto again; |
| | | 239 | |
233 | m->m_len = m->m_pkthdr.len = n; | | 240 | m->m_len = m->m_pkthdr.len = n; |
234 | m->m_pkthdr.rcvif = ifp; | | 241 | m->m_pkthdr.rcvif = ifp; |
235 | bpf_mtap(ifp, m); | | 242 | bpf_mtap(ifp, m); |
236 | ether_input(ifp, m); | | 243 | ether_input(ifp, m); |
237 | } | | 244 | } |
238 | | | 245 | |
239 | panic("virtif_workin is a lazy boy %d\n", error); | | 246 | panic("virtif_workin is a lazy boy %d\n", error); |
240 | } | | 247 | } |
241 | | | 248 | |
242 | /* lazy bum stetson-harrison magic value */ | | 249 | /* lazy bum stetson-harrison magic value */ |
243 | #define LB_SH 32 | | 250 | #define LB_SH 32 |
244 | static void | | 251 | static void |
245 | virtif_sender(void *arg) | | 252 | virtif_sender(void *arg) |
246 | { | | 253 | { |
247 | struct ifnet *ifp = arg; | | 254 | struct ifnet *ifp = arg; |
248 | struct virtif_sc *sc = ifp->if_softc; | | 255 | struct virtif_sc *sc = ifp->if_softc; |
249 | struct mbuf *m, *m0; | | 256 | struct mbuf *m, *m0; |
250 | struct rumpuser_iovec io[LB_SH]; | | 257 | struct rumpuser_iovec io[LB_SH]; |
251 | int i, error; | | 258 | int i, error; |
252 | | | 259 | |
253 | mutex_enter(&sc->sc_sendmtx); | | 260 | mutex_enter(&sc->sc_sendmtx); |
254 | for (;;) { | | 261 | for (;;) { |
255 | IF_DEQUEUE(&ifp->if_snd, m0); | | 262 | IF_DEQUEUE(&ifp->if_snd, m0); |
256 | if (!m0) { | | 263 | if (!m0) { |
257 | cv_wait(&sc->sc_sendcv, &sc->sc_sendmtx); | | 264 | cv_wait(&sc->sc_sendcv, &sc->sc_sendmtx); |
258 | continue; | | 265 | continue; |
259 | } | | 266 | } |
260 | mutex_exit(&sc->sc_sendmtx); | | 267 | mutex_exit(&sc->sc_sendmtx); |
261 | | | 268 | |
262 | m = m0; | | 269 | m = m0; |
263 | for (i = 0; i < LB_SH && m; i++) { | | 270 | for (i = 0; i < LB_SH && m; i++) { |
264 | io[i].iov_base = mtod(m, void *); | | 271 | io[i].iov_base = mtod(m, void *); |
265 | io[i].iov_len = m->m_len; | | 272 | io[i].iov_len = m->m_len; |
266 | m = m->m_next; | | 273 | m = m->m_next; |
267 | } | | 274 | } |
268 | if (i == LB_SH) | | 275 | if (i == LB_SH) |
269 | panic("lazy bum"); | | 276 | panic("lazy bum"); |
270 | bpf_mtap(ifp, m0); | | 277 | bpf_mtap(ifp, m0); |
271 | rumpuser_writev(sc->sc_tapfd, io, i, &error); | | 278 | rumpuser_writev(sc->sc_tapfd, io, i, &error); |
272 | m_freem(m0); | | 279 | m_freem(m0); |
273 | mutex_enter(&sc->sc_sendmtx); | | 280 | mutex_enter(&sc->sc_sendmtx); |
274 | } | | 281 | } |
275 | | | 282 | |
276 | mutex_exit(softnet_lock); | | 283 | mutex_exit(softnet_lock); |
277 | } | | 284 | } |
278 | | | 285 | |
279 | /* | | 286 | /* |
280 | * dummyif is a nada-interface. | | 287 | * dummyif is a nada-interface. |
281 | * As it requires nothing external, it can be used for testing | | 288 | * As it requires nothing external, it can be used for testing |
282 | * interface configuration. | | 289 | * interface configuration. |
283 | */ | | 290 | */ |
284 | static int dummyif_init(struct ifnet *); | | 291 | static int dummyif_init(struct ifnet *); |
285 | static void dummyif_start(struct ifnet *); | | 292 | static void dummyif_start(struct ifnet *); |
286 | | | 293 | |
287 | void | | 294 | void |
288 | rump_dummyif_create() | | 295 | rump_dummyif_create() |
289 | { | | 296 | { |
290 | struct ifnet *ifp; | | 297 | struct ifnet *ifp; |
291 | struct ethercom *ec; | | 298 | struct ethercom *ec; |
292 | uint8_t enaddr[ETHER_ADDR_LEN] = { 0xb2, 0x0a, 0x00, 0x0b, 0x0e, 0x01 }; | | 299 | uint8_t enaddr[ETHER_ADDR_LEN] = { 0xb2, 0x0a, 0x00, 0x0b, 0x0e, 0x01 }; |
293 | | | 300 | |
294 | enaddr[2] = arc4random() & 0xff; | | 301 | enaddr[2] = arc4random() & 0xff; |
295 | enaddr[5] = arc4random() & 0xff; | | 302 | enaddr[5] = arc4random() & 0xff; |
296 | | | 303 | |
297 | ec = kmem_zalloc(sizeof(*ec), KM_SLEEP); | | 304 | ec = kmem_zalloc(sizeof(*ec), KM_SLEEP); |
298 | | | 305 | |
299 | ifp = &ec->ec_if; | | 306 | ifp = &ec->ec_if; |
300 | strlcpy(ifp->if_xname, "dummy0", sizeof(ifp->if_xname)); | | 307 | strlcpy(ifp->if_xname, "dummy0", sizeof(ifp->if_xname)); |
301 | ifp->if_softc = ifp; | | 308 | ifp->if_softc = ifp; |
302 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; | | 309 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; |
303 | ifp->if_init = dummyif_init; | | 310 | ifp->if_init = dummyif_init; |
304 | ifp->if_ioctl = virtif_ioctl; | | 311 | ifp->if_ioctl = virtif_ioctl; |
305 | ifp->if_start = dummyif_start; | | 312 | ifp->if_start = dummyif_start; |
306 | | | 313 | |
307 | if_attach(ifp); | | 314 | if_attach(ifp); |
308 | ether_ifattach(ifp, enaddr); | | 315 | ether_ifattach(ifp, enaddr); |
309 | } | | 316 | } |
310 | | | 317 | |
311 | static int | | 318 | static int |
312 | dummyif_init(struct ifnet *ifp) | | 319 | dummyif_init(struct ifnet *ifp) |
313 | { | | 320 | { |
314 | | | 321 | |
315 | ifp->if_flags |= IFF_RUNNING; | | 322 | ifp->if_flags |= IFF_RUNNING; |
316 | return 0; | | 323 | return 0; |
317 | } | | 324 | } |
318 | | | 325 | |
319 | static void | | 326 | static void |
320 | dummyif_start(struct ifnet *ifp) | | 327 | dummyif_start(struct ifnet *ifp) |
321 | { | | 328 | { |
322 | | | 329 | |
323 | } | | 330 | } |