1/*-
2 * Copyright (c) 1999 Brian Somers <brian@Awfulhak.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
| 1/*-
2 * Copyright (c) 1999 Brian Somers <brian@Awfulhak.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
|
26 * $FreeBSD: head/usr.sbin/ppp/ether.c 71006 2001-01-14 00:54:48Z brian $
| 26 * $FreeBSD: head/usr.sbin/ppp/ether.c 74916 2001-03-28 09:45:27Z brian $
|
27 */
28
29#include <sys/param.h>
30#include <sys/socket.h>
31#include <sys/un.h>
32#include <netinet/in.h>
33#include <arpa/inet.h>
34#include <netdb.h>
35#include <netgraph.h>
36#include <net/ethernet.h>
| 27 */
28
29#include <sys/param.h>
30#include <sys/socket.h>
31#include <sys/un.h>
32#include <netinet/in.h>
33#include <arpa/inet.h>
34#include <netdb.h>
35#include <netgraph.h>
36#include <net/ethernet.h>
|
| 37#include <net/if.h>
38#include <net/route.h>
|
37#include <netinet/in_systm.h>
38#include <netinet/ip.h>
39#include <netgraph/ng_ether.h>
40#include <netgraph/ng_message.h>
41#include <netgraph/ng_pppoe.h>
42#include <netgraph/ng_socket.h>
43
44#include <errno.h>
45#include <stdio.h>
46#include <stdlib.h>
47#include <string.h>
48#include <sysexits.h>
49#include <sys/fcntl.h>
50#if defined(__FreeBSD__) && !defined(NOKLDLOAD)
51#include <sys/linker.h>
52#include <sys/module.h>
53#endif
54#include <sys/stat.h>
55#include <sys/uio.h>
56#include <termios.h>
57#include <sys/time.h>
58#include <unistd.h>
59
60#include "layer.h"
61#include "defs.h"
62#include "mbuf.h"
63#include "log.h"
64#include "timer.h"
65#include "lqr.h"
66#include "hdlc.h"
67#include "throughput.h"
68#include "fsm.h"
69#include "lcp.h"
70#include "ccp.h"
71#include "link.h"
72#include "async.h"
73#include "descriptor.h"
74#include "physical.h"
75#include "main.h"
76#include "mp.h"
77#include "chat.h"
78#include "auth.h"
79#include "chap.h"
80#include "cbcp.h"
81#include "datalink.h"
82#include "slcompress.h"
83#include "iplist.h"
84#include "ipcp.h"
85#include "filter.h"
86#ifndef NORADIUS
87#include "radius.h"
88#endif
89#include "bundle.h"
90#include "id.h"
| 39#include <netinet/in_systm.h>
40#include <netinet/ip.h>
41#include <netgraph/ng_ether.h>
42#include <netgraph/ng_message.h>
43#include <netgraph/ng_pppoe.h>
44#include <netgraph/ng_socket.h>
45
46#include <errno.h>
47#include <stdio.h>
48#include <stdlib.h>
49#include <string.h>
50#include <sysexits.h>
51#include <sys/fcntl.h>
52#if defined(__FreeBSD__) && !defined(NOKLDLOAD)
53#include <sys/linker.h>
54#include <sys/module.h>
55#endif
56#include <sys/stat.h>
57#include <sys/uio.h>
58#include <termios.h>
59#include <sys/time.h>
60#include <unistd.h>
61
62#include "layer.h"
63#include "defs.h"
64#include "mbuf.h"
65#include "log.h"
66#include "timer.h"
67#include "lqr.h"
68#include "hdlc.h"
69#include "throughput.h"
70#include "fsm.h"
71#include "lcp.h"
72#include "ccp.h"
73#include "link.h"
74#include "async.h"
75#include "descriptor.h"
76#include "physical.h"
77#include "main.h"
78#include "mp.h"
79#include "chat.h"
80#include "auth.h"
81#include "chap.h"
82#include "cbcp.h"
83#include "datalink.h"
84#include "slcompress.h"
85#include "iplist.h"
86#include "ipcp.h"
87#include "filter.h"
88#ifndef NORADIUS
89#include "radius.h"
90#endif
91#include "bundle.h"
92#include "id.h"
|
| 93#include "iface.h"
|
91#include "ether.h"
92
93
94#define PPPOE_NODE_TYPE_LEN (sizeof NG_PPPOE_NODE_TYPE - 1) /* "PPPoE" */
95
96struct etherdevice {
97 struct device dev; /* What struct physical knows about */
98 int cs; /* Control socket */
99 int connected; /* Are we connected yet ? */
100 int timeout; /* Seconds attempting to connect */
101 char hook[sizeof TUN_NAME + 11]; /* Our socket node hook */
102};
103
104#define device2ether(d) \
105 ((d)->type == ETHER_DEVICE ? (struct etherdevice *)d : NULL)
106
107int
108ether_DeviceSize(void)
109{
110 return sizeof(struct etherdevice);
111}
112
113static ssize_t
114ether_Write(struct physical *p, const void *v, size_t n)
115{
116 struct etherdevice *dev = device2ether(p->handler);
117
118 return NgSendData(p->fd, dev->hook, v, n) == -1 ? -1 : n;
119}
120
121static ssize_t
122ether_Read(struct physical *p, void *v, size_t n)
123{
124 char hook[sizeof TUN_NAME + 11];
125
126 return NgRecvData(p->fd, v, n, hook);
127}
128
129static int
130ether_RemoveFromSet(struct physical *p, fd_set *r, fd_set *w, fd_set *e)
131{
132 struct etherdevice *dev = device2ether(p->handler);
133 int result;
134
135 if (r && dev->cs >= 0 && FD_ISSET(dev->cs, r)) {
136 FD_CLR(dev->cs, r);
137 log_Printf(LogTIMER, "%s: fdunset(ctrl) %d\n", p->link.name, dev->cs);
138 result = 1;
139 } else
140 result = 0;
141
142 /* Careful... physical_RemoveFromSet() called us ! */
143
144 p->handler->removefromset = NULL;
145 result += physical_RemoveFromSet(p, r, w, e);
146 p->handler->removefromset = ether_RemoveFromSet;
147
148 return result;
149}
150
151static void
152ether_Free(struct physical *p)
153{
154 struct etherdevice *dev = device2ether(p->handler);
155
156 physical_SetDescriptor(p);
157 if (dev->cs != -1)
158 close(dev->cs);
159 free(dev);
160}
161
162static const char *
163ether_OpenInfo(struct physical *p)
164{
165 struct etherdevice *dev = device2ether(p->handler);
166
167 switch (dev->connected) {
168 case CARRIER_PENDING:
169 return "negotiating";
170 case CARRIER_OK:
171 return "established";
172 }
173
174 return "disconnected";
175}
176
177static void
178ether_device2iov(struct device *d, struct iovec *iov, int *niov,
179 int maxiov, int *auxfd, int *nauxfd)
180{
181 struct etherdevice *dev = device2ether(d);
182 int sz = physical_MaxDeviceSize();
183
184 iov[*niov].iov_base = realloc(d, sz);
185 if (iov[*niov].iov_base == NULL) {
186 log_Printf(LogALERT, "Failed to allocate memory: %d\n", sz);
187 AbortProgram(EX_OSERR);
188 }
189 iov[*niov].iov_len = sz;
190 (*niov)++;
191
192 if (dev->cs >= 0) {
193 *auxfd = dev->cs;
194 (*nauxfd)++;
195 }
196}
197
198static void
199ether_MessageIn(struct etherdevice *dev)
200{
201 char msgbuf[sizeof(struct ng_mesg) + sizeof(struct ngpppoe_sts)];
202 struct ng_mesg *rep = (struct ng_mesg *)msgbuf;
203 struct ngpppoe_sts *sts = (struct ngpppoe_sts *)(msgbuf + sizeof *rep);
204 char unknown[14];
205 const char *msg;
206 struct timeval t;
207 fd_set *r;
208 int ret;
209
210 if (dev->cs < 0)
211 return;
212
213 if ((r = mkfdset()) == NULL) {
214 log_Printf(LogERROR, "DoLoop: Cannot create fd_set\n");
215 return;
216 }
217 zerofdset(r);
218 FD_SET(dev->cs, r);
219 t.tv_sec = t.tv_usec = 0;
220 ret = select(dev->cs + 1, r, NULL, NULL, &t);
221 free(r);
222
223 if (ret <= 0)
224 return;
225
226 if (NgRecvMsg(dev->cs, rep, sizeof msgbuf, NULL) < 0)
227 return;
228
229 if (rep->header.version != NG_VERSION) {
230 log_Printf(LogWARN, "%ld: Unexpected netgraph version, expected %ld\n",
231 (long)rep->header.version, (long)NG_VERSION);
232 return;
233 }
234
235 if (rep->header.typecookie != NGM_PPPOE_COOKIE) {
236 log_Printf(LogWARN, "%ld: Unexpected netgraph cookie, expected %ld\n",
237 (long)rep->header.typecookie, (long)NGM_PPPOE_COOKIE);
238 return;
239 }
240
241 switch (rep->header.cmd) {
242 case NGM_PPPOE_SET_FLAG: msg = "SET_FLAG"; break;
243 case NGM_PPPOE_CONNECT: msg = "CONNECT"; break;
244 case NGM_PPPOE_LISTEN: msg = "LISTEN"; break;
245 case NGM_PPPOE_OFFER: msg = "OFFER"; break;
246 case NGM_PPPOE_SUCCESS: msg = "SUCCESS"; break;
247 case NGM_PPPOE_FAIL: msg = "FAIL"; break;
248 case NGM_PPPOE_CLOSE: msg = "CLOSE"; break;
249 case NGM_PPPOE_GET_STATUS: msg = "GET_STATUS"; break;
250 default:
251 snprintf(unknown, sizeof unknown, "<%d>", (int)rep->header.cmd);
252 msg = unknown;
253 break;
254 }
255
256 log_Printf(LogPHASE, "Received NGM_PPPOE_%s (hook \"%s\")\n", msg, sts->hook);
257
258 switch (rep->header.cmd) {
259 case NGM_PPPOE_SUCCESS:
260 dev->connected = CARRIER_OK;
261 break;
262 case NGM_PPPOE_FAIL:
263 case NGM_PPPOE_CLOSE:
264 dev->connected = CARRIER_LOST;
265 break;
266 }
267}
268
269static int
270ether_AwaitCarrier(struct physical *p)
271{
272 struct etherdevice *dev = device2ether(p->handler);
273
274 if (dev->connected != CARRIER_OK && !dev->timeout--)
275 dev->connected = CARRIER_LOST;
276 else if (dev->connected == CARRIER_PENDING)
277 ether_MessageIn(dev);
278
279 return dev->connected;
280}
281
282static const struct device baseetherdevice = {
283 ETHER_DEVICE,
284 "ether",
285 { CD_REQUIRED, DEF_ETHERCDDELAY },
286 ether_AwaitCarrier,
287 ether_RemoveFromSet,
288 NULL,
289 NULL,
290 NULL,
291 NULL,
292 ether_Free,
293 ether_Read,
294 ether_Write,
295 ether_device2iov,
296 NULL,
297 ether_OpenInfo
298};
299
300struct device *
301ether_iov2device(int type, struct physical *p, struct iovec *iov, int *niov,
302 int maxiov, int *auxfd, int *nauxfd)
303{
304 if (type == ETHER_DEVICE) {
305 struct etherdevice *dev = (struct etherdevice *)iov[(*niov)++].iov_base;
306
307 dev = realloc(dev, sizeof *dev); /* Reduce to the correct size */
308 if (dev == NULL) {
309 log_Printf(LogALERT, "Failed to allocate memory: %d\n",
310 (int)(sizeof *dev));
311 AbortProgram(EX_OSERR);
312 }
313
314 if (*nauxfd) {
315 dev->cs = *auxfd;
316 (*nauxfd)--;
317 } else
318 dev->cs = -1;
319
320 /* Refresh function pointers etc */
321 memcpy(&dev->dev, &baseetherdevice, sizeof dev->dev);
322
323 physical_SetupStack(p, dev->dev.name, PHYSICAL_FORCE_SYNCNOACF);
324 return &dev->dev;
325 }
326
327 return NULL;
328}
329
330static int
331ether_UpdateSet(struct fdescriptor *d, fd_set *r, fd_set *w, fd_set *e, int *n)
332{
333 struct physical *p = descriptor2physical(d);
334 struct etherdevice *dev = device2ether(p->handler);
335 int result;
336
337 if (r && dev->cs >= 0) {
338 FD_SET(dev->cs, r);
339 log_Printf(LogTIMER, "%s(ctrl): fdset(r) %d\n", p->link.name, dev->cs);
340 result = 1;
341 } else
342 result = 0;
343
344 result += physical_doUpdateSet(d, r, w, e, n, 0);
345
346 return result;
347}
348
349static int
350ether_IsSet(struct fdescriptor *d, const fd_set *fdset)
351{
352 struct physical *p = descriptor2physical(d);
353 struct etherdevice *dev = device2ether(p->handler);
354 int result;
355
356 result = dev->cs >= 0 && FD_ISSET(dev->cs, fdset);
357 result += physical_IsSet(d, fdset);
358
359 return result;
360}
361
362static void
363ether_DescriptorRead(struct fdescriptor *d, struct bundle *bundle,
364 const fd_set *fdset)
365{
366 struct physical *p = descriptor2physical(d);
367 struct etherdevice *dev = device2ether(p->handler);
368
369 if (dev->cs >= 0 && FD_ISSET(dev->cs, fdset)) {
370 ether_MessageIn(dev);
371 if (dev->connected == CARRIER_LOST) {
372 log_Printf(LogPHASE, "%s: Device disconnected\n", p->link.name);
373 datalink_Down(p->dl, CLOSE_NORMAL);
374 return;
375 }
376 }
377
378 if (physical_IsSet(d, fdset))
379 physical_DescriptorRead(d, bundle, fdset);
380}
381
382static struct device *
383ether_Abandon(struct etherdevice *dev, struct physical *p)
384{
385 /* Abandon our node construction */
386 close(dev->cs);
387 close(p->fd);
388 p->fd = -2; /* Nobody else need try.. */
389 free(dev);
390
391 return NULL;
392}
393
394struct device *
395ether_Create(struct physical *p)
396{
397 u_char rbuf[2048];
398 struct etherdevice *dev;
399 struct ng_mesg *resp;
400 const struct hooklist *hlist;
401 const struct nodeinfo *ninfo;
| 94#include "ether.h"
95
96
97#define PPPOE_NODE_TYPE_LEN (sizeof NG_PPPOE_NODE_TYPE - 1) /* "PPPoE" */
98
99struct etherdevice {
100 struct device dev; /* What struct physical knows about */
101 int cs; /* Control socket */
102 int connected; /* Are we connected yet ? */
103 int timeout; /* Seconds attempting to connect */
104 char hook[sizeof TUN_NAME + 11]; /* Our socket node hook */
105};
106
107#define device2ether(d) \
108 ((d)->type == ETHER_DEVICE ? (struct etherdevice *)d : NULL)
109
110int
111ether_DeviceSize(void)
112{
113 return sizeof(struct etherdevice);
114}
115
116static ssize_t
117ether_Write(struct physical *p, const void *v, size_t n)
118{
119 struct etherdevice *dev = device2ether(p->handler);
120
121 return NgSendData(p->fd, dev->hook, v, n) == -1 ? -1 : n;
122}
123
124static ssize_t
125ether_Read(struct physical *p, void *v, size_t n)
126{
127 char hook[sizeof TUN_NAME + 11];
128
129 return NgRecvData(p->fd, v, n, hook);
130}
131
132static int
133ether_RemoveFromSet(struct physical *p, fd_set *r, fd_set *w, fd_set *e)
134{
135 struct etherdevice *dev = device2ether(p->handler);
136 int result;
137
138 if (r && dev->cs >= 0 && FD_ISSET(dev->cs, r)) {
139 FD_CLR(dev->cs, r);
140 log_Printf(LogTIMER, "%s: fdunset(ctrl) %d\n", p->link.name, dev->cs);
141 result = 1;
142 } else
143 result = 0;
144
145 /* Careful... physical_RemoveFromSet() called us ! */
146
147 p->handler->removefromset = NULL;
148 result += physical_RemoveFromSet(p, r, w, e);
149 p->handler->removefromset = ether_RemoveFromSet;
150
151 return result;
152}
153
154static void
155ether_Free(struct physical *p)
156{
157 struct etherdevice *dev = device2ether(p->handler);
158
159 physical_SetDescriptor(p);
160 if (dev->cs != -1)
161 close(dev->cs);
162 free(dev);
163}
164
165static const char *
166ether_OpenInfo(struct physical *p)
167{
168 struct etherdevice *dev = device2ether(p->handler);
169
170 switch (dev->connected) {
171 case CARRIER_PENDING:
172 return "negotiating";
173 case CARRIER_OK:
174 return "established";
175 }
176
177 return "disconnected";
178}
179
180static void
181ether_device2iov(struct device *d, struct iovec *iov, int *niov,
182 int maxiov, int *auxfd, int *nauxfd)
183{
184 struct etherdevice *dev = device2ether(d);
185 int sz = physical_MaxDeviceSize();
186
187 iov[*niov].iov_base = realloc(d, sz);
188 if (iov[*niov].iov_base == NULL) {
189 log_Printf(LogALERT, "Failed to allocate memory: %d\n", sz);
190 AbortProgram(EX_OSERR);
191 }
192 iov[*niov].iov_len = sz;
193 (*niov)++;
194
195 if (dev->cs >= 0) {
196 *auxfd = dev->cs;
197 (*nauxfd)++;
198 }
199}
200
201static void
202ether_MessageIn(struct etherdevice *dev)
203{
204 char msgbuf[sizeof(struct ng_mesg) + sizeof(struct ngpppoe_sts)];
205 struct ng_mesg *rep = (struct ng_mesg *)msgbuf;
206 struct ngpppoe_sts *sts = (struct ngpppoe_sts *)(msgbuf + sizeof *rep);
207 char unknown[14];
208 const char *msg;
209 struct timeval t;
210 fd_set *r;
211 int ret;
212
213 if (dev->cs < 0)
214 return;
215
216 if ((r = mkfdset()) == NULL) {
217 log_Printf(LogERROR, "DoLoop: Cannot create fd_set\n");
218 return;
219 }
220 zerofdset(r);
221 FD_SET(dev->cs, r);
222 t.tv_sec = t.tv_usec = 0;
223 ret = select(dev->cs + 1, r, NULL, NULL, &t);
224 free(r);
225
226 if (ret <= 0)
227 return;
228
229 if (NgRecvMsg(dev->cs, rep, sizeof msgbuf, NULL) < 0)
230 return;
231
232 if (rep->header.version != NG_VERSION) {
233 log_Printf(LogWARN, "%ld: Unexpected netgraph version, expected %ld\n",
234 (long)rep->header.version, (long)NG_VERSION);
235 return;
236 }
237
238 if (rep->header.typecookie != NGM_PPPOE_COOKIE) {
239 log_Printf(LogWARN, "%ld: Unexpected netgraph cookie, expected %ld\n",
240 (long)rep->header.typecookie, (long)NGM_PPPOE_COOKIE);
241 return;
242 }
243
244 switch (rep->header.cmd) {
245 case NGM_PPPOE_SET_FLAG: msg = "SET_FLAG"; break;
246 case NGM_PPPOE_CONNECT: msg = "CONNECT"; break;
247 case NGM_PPPOE_LISTEN: msg = "LISTEN"; break;
248 case NGM_PPPOE_OFFER: msg = "OFFER"; break;
249 case NGM_PPPOE_SUCCESS: msg = "SUCCESS"; break;
250 case NGM_PPPOE_FAIL: msg = "FAIL"; break;
251 case NGM_PPPOE_CLOSE: msg = "CLOSE"; break;
252 case NGM_PPPOE_GET_STATUS: msg = "GET_STATUS"; break;
253 default:
254 snprintf(unknown, sizeof unknown, "<%d>", (int)rep->header.cmd);
255 msg = unknown;
256 break;
257 }
258
259 log_Printf(LogPHASE, "Received NGM_PPPOE_%s (hook \"%s\")\n", msg, sts->hook);
260
261 switch (rep->header.cmd) {
262 case NGM_PPPOE_SUCCESS:
263 dev->connected = CARRIER_OK;
264 break;
265 case NGM_PPPOE_FAIL:
266 case NGM_PPPOE_CLOSE:
267 dev->connected = CARRIER_LOST;
268 break;
269 }
270}
271
272static int
273ether_AwaitCarrier(struct physical *p)
274{
275 struct etherdevice *dev = device2ether(p->handler);
276
277 if (dev->connected != CARRIER_OK && !dev->timeout--)
278 dev->connected = CARRIER_LOST;
279 else if (dev->connected == CARRIER_PENDING)
280 ether_MessageIn(dev);
281
282 return dev->connected;
283}
284
285static const struct device baseetherdevice = {
286 ETHER_DEVICE,
287 "ether",
288 { CD_REQUIRED, DEF_ETHERCDDELAY },
289 ether_AwaitCarrier,
290 ether_RemoveFromSet,
291 NULL,
292 NULL,
293 NULL,
294 NULL,
295 ether_Free,
296 ether_Read,
297 ether_Write,
298 ether_device2iov,
299 NULL,
300 ether_OpenInfo
301};
302
303struct device *
304ether_iov2device(int type, struct physical *p, struct iovec *iov, int *niov,
305 int maxiov, int *auxfd, int *nauxfd)
306{
307 if (type == ETHER_DEVICE) {
308 struct etherdevice *dev = (struct etherdevice *)iov[(*niov)++].iov_base;
309
310 dev = realloc(dev, sizeof *dev); /* Reduce to the correct size */
311 if (dev == NULL) {
312 log_Printf(LogALERT, "Failed to allocate memory: %d\n",
313 (int)(sizeof *dev));
314 AbortProgram(EX_OSERR);
315 }
316
317 if (*nauxfd) {
318 dev->cs = *auxfd;
319 (*nauxfd)--;
320 } else
321 dev->cs = -1;
322
323 /* Refresh function pointers etc */
324 memcpy(&dev->dev, &baseetherdevice, sizeof dev->dev);
325
326 physical_SetupStack(p, dev->dev.name, PHYSICAL_FORCE_SYNCNOACF);
327 return &dev->dev;
328 }
329
330 return NULL;
331}
332
333static int
334ether_UpdateSet(struct fdescriptor *d, fd_set *r, fd_set *w, fd_set *e, int *n)
335{
336 struct physical *p = descriptor2physical(d);
337 struct etherdevice *dev = device2ether(p->handler);
338 int result;
339
340 if (r && dev->cs >= 0) {
341 FD_SET(dev->cs, r);
342 log_Printf(LogTIMER, "%s(ctrl): fdset(r) %d\n", p->link.name, dev->cs);
343 result = 1;
344 } else
345 result = 0;
346
347 result += physical_doUpdateSet(d, r, w, e, n, 0);
348
349 return result;
350}
351
352static int
353ether_IsSet(struct fdescriptor *d, const fd_set *fdset)
354{
355 struct physical *p = descriptor2physical(d);
356 struct etherdevice *dev = device2ether(p->handler);
357 int result;
358
359 result = dev->cs >= 0 && FD_ISSET(dev->cs, fdset);
360 result += physical_IsSet(d, fdset);
361
362 return result;
363}
364
365static void
366ether_DescriptorRead(struct fdescriptor *d, struct bundle *bundle,
367 const fd_set *fdset)
368{
369 struct physical *p = descriptor2physical(d);
370 struct etherdevice *dev = device2ether(p->handler);
371
372 if (dev->cs >= 0 && FD_ISSET(dev->cs, fdset)) {
373 ether_MessageIn(dev);
374 if (dev->connected == CARRIER_LOST) {
375 log_Printf(LogPHASE, "%s: Device disconnected\n", p->link.name);
376 datalink_Down(p->dl, CLOSE_NORMAL);
377 return;
378 }
379 }
380
381 if (physical_IsSet(d, fdset))
382 physical_DescriptorRead(d, bundle, fdset);
383}
384
385static struct device *
386ether_Abandon(struct etherdevice *dev, struct physical *p)
387{
388 /* Abandon our node construction */
389 close(dev->cs);
390 close(p->fd);
391 p->fd = -2; /* Nobody else need try.. */
392 free(dev);
393
394 return NULL;
395}
396
397struct device *
398ether_Create(struct physical *p)
399{
400 u_char rbuf[2048];
401 struct etherdevice *dev;
402 struct ng_mesg *resp;
403 const struct hooklist *hlist;
404 const struct nodeinfo *ninfo;
|
402 int f;
| 405 char *path;
406 int ifacelen, f;
|
403
404 dev = NULL;
| 407
408 dev = NULL;
|
| 409 path = NULL;
410 ifacelen = 0;
|
405 if (p->fd < 0 && !strncasecmp(p->name.full, NG_PPPOE_NODE_TYPE,
406 PPPOE_NODE_TYPE_LEN) &&
407 p->name.full[PPPOE_NODE_TYPE_LEN] == ':') {
408 const struct linkinfo *nlink;
409 struct ngpppoe_init_data *data;
410 struct ngm_mkpeer mkp;
411 struct ngm_connect ngc;
412 const char *iface, *provider;
| 411 if (p->fd < 0 && !strncasecmp(p->name.full, NG_PPPOE_NODE_TYPE,
412 PPPOE_NODE_TYPE_LEN) &&
413 p->name.full[PPPOE_NODE_TYPE_LEN] == ':') {
414 const struct linkinfo *nlink;
415 struct ngpppoe_init_data *data;
416 struct ngm_mkpeer mkp;
417 struct ngm_connect ngc;
418 const char *iface, *provider;
|
413 char *path, etherid[12];
414 int ifacelen, providerlen;
| 419 char etherid[12];
420 int providerlen;
|
415 char connectpath[sizeof dev->hook + 2]; /* .:<hook> */
416
417 p->fd--; /* We own the device - change fd */
418
419#if defined(__FreeBSD__) && !defined(NOKLDLOAD)
420 if (modfind("netgraph") == -1) {
421 log_Printf(LogWARN, "Netgraph is not built into the kernel\n");
422 return NULL;
423 }
424
425 if (modfind("ng_ether") == -1 && ID0kldload("ng_ether") == -1)
426 /*
427 * Don't treat this as an error as older kernels have this stuff
428 * built in as part of the netgraph node itself.
429 */
430 log_Printf(LogWARN, "kldload: ng_ether: %s\n", strerror(errno));
431
432 if (modfind("ng_socket") == -1 && ID0kldload("ng_socket") == -1) {
433 log_Printf(LogWARN, "kldload: ng_socket: %s\n", strerror(errno));
434 return NULL;
435 }
436#endif
437
438 if ((dev = malloc(sizeof *dev)) == NULL)
439 return NULL;
440
441 iface = p->name.full + PPPOE_NODE_TYPE_LEN + 1;
442
443 provider = strchr(iface, ':');
444 if (provider) {
445 ifacelen = provider - iface;
446 provider++;
447 providerlen = strlen(provider);
448 } else {
449 ifacelen = strlen(iface);
450 provider = "";
451 providerlen = 0;
452 }
453
454 /*
455 * We're going to do this (where tunN is our tunnel device):
456 *
457 * .---------.
458 * | ether |
459 * | <iface> | dev->cs
460 * `---------' |
461 * (orphan) p->fd |
462 * | | |
463 * | | |
464 * (ethernet) | |
465 * .---------. .-----------.
466 * | pppoe | | socket |
467 * | <iface> |(tunN)<---->(tunN)| <unnamed> |
468 * `--------- `-----------'
469 * (tunX)
470 * ^
471 * |
472 * `--->(tunX)
473 */
474
475 /* Create a socket node */
476 if (ID0NgMkSockNode(NULL, &dev->cs, &p->fd) == -1) {
477 log_Printf(LogWARN, "Cannot create netgraph socket node: %s\n",
478 strerror(errno));
479 free(dev);
480 return NULL;
481 }
482
483 /*
484 * Ask for a list of hooks attached to the "ether" node. This node should
485 * magically exist as a way of hooking stuff onto an ethernet device
486 */
487 path = (char *)alloca(ifacelen + 2);
488 sprintf(path, "%.*s:", ifacelen, iface);
489 if (NgSendMsg(dev->cs, path, NGM_GENERIC_COOKIE, NGM_LISTHOOKS,
490 NULL, 0) < 0) {
491 log_Printf(LogWARN, "%s Cannot send a netgraph message: %s\n",
492 path, strerror(errno));
493 return ether_Abandon(dev, p);
494 }
495
496 /* Get our list back */
497 resp = (struct ng_mesg *)rbuf;
498 if (NgRecvMsg(dev->cs, resp, sizeof rbuf, NULL) < 0) {
499 log_Printf(LogWARN, "Cannot get netgraph response: %s\n",
500 strerror(errno));
501 return ether_Abandon(dev, p);
502 }
503
504 hlist = (const struct hooklist *)resp->data;
505 ninfo = &hlist->nodeinfo;
506
507 /* Make sure we've got the right type of node */
508 if (strncmp(ninfo->type, NG_ETHER_NODE_TYPE,
509 sizeof NG_ETHER_NODE_TYPE - 1)) {
510 log_Printf(LogWARN, "%s Unexpected node type ``%s'' (wanted ``"
511 NG_ETHER_NODE_TYPE "'')\n", path, ninfo->type);
512 return ether_Abandon(dev, p);
513 }
514
515 log_Printf(LogDEBUG, "List of netgraph node ``%s'' (id %x) hooks:\n",
516 path, ninfo->id);
517
518 /* look for a hook already attached. */
519 for (f = 0; f < ninfo->hooks; f++) {
520 nlink = &hlist->link[f];
521
522 log_Printf(LogDEBUG, " Found %s -> %s\n", nlink->ourhook,
523 nlink->peerhook);
524
525 if (!strcmp(nlink->ourhook, NG_ETHER_HOOK_ORPHAN) ||
526 !strcmp(nlink->ourhook, NG_ETHER_HOOK_DIVERT)) {
527 /*
528 * Something is using the data coming out of this ``ether'' node.
529 * If it's a PPPoE node, we use that node, otherwise we complain that
530 * someone else is using the node.
531 */
532 if (!strcmp(nlink->nodeinfo.type, NG_PPPOE_NODE_TYPE))
533 /* Use this PPPoE node ! */
534 snprintf(ngc.path, sizeof ngc.path, "[%x]:", nlink->nodeinfo.id);
535 else {
536 log_Printf(LogWARN, "%s Node type ``%s'' is currently active\n",
537 path, nlink->nodeinfo.type);
538 return ether_Abandon(dev, p);
539 }
540 break;
541 }
542 }
543
544 if (f == ninfo->hooks) {
545 /*
546 * Create a new ``PPPoE'' node connected to the ``ether'' node using
547 * the magic ``orphan'' and ``ethernet'' hooks
548 */
549 snprintf(mkp.type, sizeof mkp.type, "%s", NG_PPPOE_NODE_TYPE);
550 snprintf(mkp.ourhook, sizeof mkp.ourhook, "%s", NG_ETHER_HOOK_ORPHAN);
551 snprintf(mkp.peerhook, sizeof mkp.peerhook, "%s", NG_PPPOE_HOOK_ETHERNET);
552 snprintf(etherid, sizeof etherid, "[%x]:", ninfo->id);
553
554 log_Printf(LogDEBUG, "Creating PPPoE netgraph node %s%s -> %s\n",
555 etherid, mkp.ourhook, mkp.peerhook);
556
557 if (NgSendMsg(dev->cs, etherid, NGM_GENERIC_COOKIE,
558 NGM_MKPEER, &mkp, sizeof mkp) < 0) {
559 log_Printf(LogWARN, "%s Cannot create PPPoE netgraph node: %s\n",
560 etherid, strerror(errno));
561 return ether_Abandon(dev, p);
562 }
563
564 snprintf(ngc.path, sizeof ngc.path, "%s%s", path, NG_ETHER_HOOK_ORPHAN);
565 }
566
567 snprintf(dev->hook, sizeof dev->hook, "%s%d",
568 TUN_NAME, p->dl->bundle->unit);
569
570 /*
571 * Connect the PPPoE node to our socket node.
572 * ngc.path has already been set up
573 */
574 snprintf(ngc.ourhook, sizeof ngc.ourhook, "%s", dev->hook);
575 memcpy(ngc.peerhook, ngc.ourhook, sizeof ngc.peerhook);
576
577 log_Printf(LogDEBUG, "Connecting netgraph socket .:%s -> %s:%s\n",
578 ngc.ourhook, ngc.path, ngc.peerhook);
579 if (NgSendMsg(dev->cs, ".:", NGM_GENERIC_COOKIE,
580 NGM_CONNECT, &ngc, sizeof ngc) < 0) {
581 log_Printf(LogWARN, "Cannot connect PPPoE and socket netgraph "
582 "nodes: %s\n", strerror(errno));
583 return ether_Abandon(dev, p);
584 }
585
586 /* And finally, request a connection to the given provider */
587
588 data = (struct ngpppoe_init_data *)alloca(sizeof *data + providerlen);
589 snprintf(data->hook, sizeof data->hook, "%s", dev->hook);
590 memcpy(data->data, provider, providerlen);
591 data->data_len = providerlen;
592
593 snprintf(connectpath, sizeof connectpath, ".:%s", dev->hook);
594 log_Printf(LogDEBUG, "Sending PPPOE_CONNECT to %s\n", connectpath);
595 if (NgSendMsg(dev->cs, connectpath, NGM_PPPOE_COOKIE,
596 NGM_PPPOE_CONNECT, data, sizeof *data + providerlen) == -1) {
597 log_Printf(LogWARN, "``%s'': Cannot start netgraph node: %s\n",
598 connectpath, strerror(errno));
599 return ether_Abandon(dev, p);
600 }
601
602 /* Hook things up so that we monitor dev->cs */
603 p->desc.UpdateSet = ether_UpdateSet;
604 p->desc.IsSet = ether_IsSet;
605 p->desc.Read = ether_DescriptorRead;
606
607 memcpy(&dev->dev, &baseetherdevice, sizeof dev->dev);
608 switch (p->cfg.cd.necessity) {
609 case CD_VARIABLE:
610 dev->dev.cd.delay = p->cfg.cd.delay;
611 break;
612 case CD_REQUIRED:
613 dev->dev.cd = p->cfg.cd;
614 break;
615 case CD_NOTREQUIRED:
616 log_Printf(LogWARN, "%s: Carrier must be set, using ``set cd %d!''\n",
617 p->link.name, dev->dev.cd.delay);
618 case CD_DEFAULT:
619 break;
620 }
621
622 dev->timeout = dev->dev.cd.delay;
623 dev->connected = CARRIER_PENDING;
624
625 } else {
626 /* See if we're a netgraph socket */
627 struct stat st;
628
629 if (fstat(p->fd, &st) != -1 && (st.st_mode & S_IFSOCK)) {
630 struct sockaddr_storage ssock;
631 struct sockaddr *sock = (struct sockaddr *)&ssock;
632 int sz;
633
634 sz = sizeof ssock;
635 if (getsockname(p->fd, sock, &sz) == -1) {
636 log_Printf(LogPHASE, "%s: Link is a closed socket !\n", p->link.name);
637 close(p->fd);
638 p->fd = -1;
639 return NULL;
640 }
641
642 if (sock->sa_family == AF_NETGRAPH) {
643 /*
644 * It's a netgraph node... We can't determine hook names etc, so we
645 * stay pretty impartial....
646 */
647 log_Printf(LogPHASE, "%s: Link is a netgraph node\n", p->link.name);
648
649 if ((dev = malloc(sizeof *dev)) == NULL) {
650 log_Printf(LogWARN, "%s: Cannot allocate an ether device: %s\n",
651 p->link.name, strerror(errno));
652 return NULL;
653 }
654
655 memcpy(&dev->dev, &baseetherdevice, sizeof dev->dev);
656 dev->cs = -1;
657 dev->timeout = 0;
658 dev->connected = CARRIER_OK;
659 *dev->hook = '\0';
660 }
661 }
662 }
663
664 if (dev) {
665 physical_SetupStack(p, dev->dev.name, PHYSICAL_FORCE_SYNCNOACF);
666
667 /* Moan about (and fix) invalid LCP configurations */
668 if (p->link.lcp.cfg.mru > 1492) {
669 log_Printf(LogWARN, "%s: Reducing MRU to 1492\n", p->link.name);
670 p->link.lcp.cfg.mru = 1492;
671 }
672 if (p->dl->bundle->cfg.mtu > 1492) {
673 log_Printf(LogWARN, "%s: Reducing MTU to 1492\n", p->link.name);
674 p->dl->bundle->cfg.mtu = 1492;
675 }
676
| 421 char connectpath[sizeof dev->hook + 2]; /* .:<hook> */
422
423 p->fd--; /* We own the device - change fd */
424
425#if defined(__FreeBSD__) && !defined(NOKLDLOAD)
426 if (modfind("netgraph") == -1) {
427 log_Printf(LogWARN, "Netgraph is not built into the kernel\n");
428 return NULL;
429 }
430
431 if (modfind("ng_ether") == -1 && ID0kldload("ng_ether") == -1)
432 /*
433 * Don't treat this as an error as older kernels have this stuff
434 * built in as part of the netgraph node itself.
435 */
436 log_Printf(LogWARN, "kldload: ng_ether: %s\n", strerror(errno));
437
438 if (modfind("ng_socket") == -1 && ID0kldload("ng_socket") == -1) {
439 log_Printf(LogWARN, "kldload: ng_socket: %s\n", strerror(errno));
440 return NULL;
441 }
442#endif
443
444 if ((dev = malloc(sizeof *dev)) == NULL)
445 return NULL;
446
447 iface = p->name.full + PPPOE_NODE_TYPE_LEN + 1;
448
449 provider = strchr(iface, ':');
450 if (provider) {
451 ifacelen = provider - iface;
452 provider++;
453 providerlen = strlen(provider);
454 } else {
455 ifacelen = strlen(iface);
456 provider = "";
457 providerlen = 0;
458 }
459
460 /*
461 * We're going to do this (where tunN is our tunnel device):
462 *
463 * .---------.
464 * | ether |
465 * | <iface> | dev->cs
466 * `---------' |
467 * (orphan) p->fd |
468 * | | |
469 * | | |
470 * (ethernet) | |
471 * .---------. .-----------.
472 * | pppoe | | socket |
473 * | <iface> |(tunN)<---->(tunN)| <unnamed> |
474 * `--------- `-----------'
475 * (tunX)
476 * ^
477 * |
478 * `--->(tunX)
479 */
480
481 /* Create a socket node */
482 if (ID0NgMkSockNode(NULL, &dev->cs, &p->fd) == -1) {
483 log_Printf(LogWARN, "Cannot create netgraph socket node: %s\n",
484 strerror(errno));
485 free(dev);
486 return NULL;
487 }
488
489 /*
490 * Ask for a list of hooks attached to the "ether" node. This node should
491 * magically exist as a way of hooking stuff onto an ethernet device
492 */
493 path = (char *)alloca(ifacelen + 2);
494 sprintf(path, "%.*s:", ifacelen, iface);
495 if (NgSendMsg(dev->cs, path, NGM_GENERIC_COOKIE, NGM_LISTHOOKS,
496 NULL, 0) < 0) {
497 log_Printf(LogWARN, "%s Cannot send a netgraph message: %s\n",
498 path, strerror(errno));
499 return ether_Abandon(dev, p);
500 }
501
502 /* Get our list back */
503 resp = (struct ng_mesg *)rbuf;
504 if (NgRecvMsg(dev->cs, resp, sizeof rbuf, NULL) < 0) {
505 log_Printf(LogWARN, "Cannot get netgraph response: %s\n",
506 strerror(errno));
507 return ether_Abandon(dev, p);
508 }
509
510 hlist = (const struct hooklist *)resp->data;
511 ninfo = &hlist->nodeinfo;
512
513 /* Make sure we've got the right type of node */
514 if (strncmp(ninfo->type, NG_ETHER_NODE_TYPE,
515 sizeof NG_ETHER_NODE_TYPE - 1)) {
516 log_Printf(LogWARN, "%s Unexpected node type ``%s'' (wanted ``"
517 NG_ETHER_NODE_TYPE "'')\n", path, ninfo->type);
518 return ether_Abandon(dev, p);
519 }
520
521 log_Printf(LogDEBUG, "List of netgraph node ``%s'' (id %x) hooks:\n",
522 path, ninfo->id);
523
524 /* look for a hook already attached. */
525 for (f = 0; f < ninfo->hooks; f++) {
526 nlink = &hlist->link[f];
527
528 log_Printf(LogDEBUG, " Found %s -> %s\n", nlink->ourhook,
529 nlink->peerhook);
530
531 if (!strcmp(nlink->ourhook, NG_ETHER_HOOK_ORPHAN) ||
532 !strcmp(nlink->ourhook, NG_ETHER_HOOK_DIVERT)) {
533 /*
534 * Something is using the data coming out of this ``ether'' node.
535 * If it's a PPPoE node, we use that node, otherwise we complain that
536 * someone else is using the node.
537 */
538 if (!strcmp(nlink->nodeinfo.type, NG_PPPOE_NODE_TYPE))
539 /* Use this PPPoE node ! */
540 snprintf(ngc.path, sizeof ngc.path, "[%x]:", nlink->nodeinfo.id);
541 else {
542 log_Printf(LogWARN, "%s Node type ``%s'' is currently active\n",
543 path, nlink->nodeinfo.type);
544 return ether_Abandon(dev, p);
545 }
546 break;
547 }
548 }
549
550 if (f == ninfo->hooks) {
551 /*
552 * Create a new ``PPPoE'' node connected to the ``ether'' node using
553 * the magic ``orphan'' and ``ethernet'' hooks
554 */
555 snprintf(mkp.type, sizeof mkp.type, "%s", NG_PPPOE_NODE_TYPE);
556 snprintf(mkp.ourhook, sizeof mkp.ourhook, "%s", NG_ETHER_HOOK_ORPHAN);
557 snprintf(mkp.peerhook, sizeof mkp.peerhook, "%s", NG_PPPOE_HOOK_ETHERNET);
558 snprintf(etherid, sizeof etherid, "[%x]:", ninfo->id);
559
560 log_Printf(LogDEBUG, "Creating PPPoE netgraph node %s%s -> %s\n",
561 etherid, mkp.ourhook, mkp.peerhook);
562
563 if (NgSendMsg(dev->cs, etherid, NGM_GENERIC_COOKIE,
564 NGM_MKPEER, &mkp, sizeof mkp) < 0) {
565 log_Printf(LogWARN, "%s Cannot create PPPoE netgraph node: %s\n",
566 etherid, strerror(errno));
567 return ether_Abandon(dev, p);
568 }
569
570 snprintf(ngc.path, sizeof ngc.path, "%s%s", path, NG_ETHER_HOOK_ORPHAN);
571 }
572
573 snprintf(dev->hook, sizeof dev->hook, "%s%d",
574 TUN_NAME, p->dl->bundle->unit);
575
576 /*
577 * Connect the PPPoE node to our socket node.
578 * ngc.path has already been set up
579 */
580 snprintf(ngc.ourhook, sizeof ngc.ourhook, "%s", dev->hook);
581 memcpy(ngc.peerhook, ngc.ourhook, sizeof ngc.peerhook);
582
583 log_Printf(LogDEBUG, "Connecting netgraph socket .:%s -> %s:%s\n",
584 ngc.ourhook, ngc.path, ngc.peerhook);
585 if (NgSendMsg(dev->cs, ".:", NGM_GENERIC_COOKIE,
586 NGM_CONNECT, &ngc, sizeof ngc) < 0) {
587 log_Printf(LogWARN, "Cannot connect PPPoE and socket netgraph "
588 "nodes: %s\n", strerror(errno));
589 return ether_Abandon(dev, p);
590 }
591
592 /* And finally, request a connection to the given provider */
593
594 data = (struct ngpppoe_init_data *)alloca(sizeof *data + providerlen);
595 snprintf(data->hook, sizeof data->hook, "%s", dev->hook);
596 memcpy(data->data, provider, providerlen);
597 data->data_len = providerlen;
598
599 snprintf(connectpath, sizeof connectpath, ".:%s", dev->hook);
600 log_Printf(LogDEBUG, "Sending PPPOE_CONNECT to %s\n", connectpath);
601 if (NgSendMsg(dev->cs, connectpath, NGM_PPPOE_COOKIE,
602 NGM_PPPOE_CONNECT, data, sizeof *data + providerlen) == -1) {
603 log_Printf(LogWARN, "``%s'': Cannot start netgraph node: %s\n",
604 connectpath, strerror(errno));
605 return ether_Abandon(dev, p);
606 }
607
608 /* Hook things up so that we monitor dev->cs */
609 p->desc.UpdateSet = ether_UpdateSet;
610 p->desc.IsSet = ether_IsSet;
611 p->desc.Read = ether_DescriptorRead;
612
613 memcpy(&dev->dev, &baseetherdevice, sizeof dev->dev);
614 switch (p->cfg.cd.necessity) {
615 case CD_VARIABLE:
616 dev->dev.cd.delay = p->cfg.cd.delay;
617 break;
618 case CD_REQUIRED:
619 dev->dev.cd = p->cfg.cd;
620 break;
621 case CD_NOTREQUIRED:
622 log_Printf(LogWARN, "%s: Carrier must be set, using ``set cd %d!''\n",
623 p->link.name, dev->dev.cd.delay);
624 case CD_DEFAULT:
625 break;
626 }
627
628 dev->timeout = dev->dev.cd.delay;
629 dev->connected = CARRIER_PENDING;
630
631 } else {
632 /* See if we're a netgraph socket */
633 struct stat st;
634
635 if (fstat(p->fd, &st) != -1 && (st.st_mode & S_IFSOCK)) {
636 struct sockaddr_storage ssock;
637 struct sockaddr *sock = (struct sockaddr *)&ssock;
638 int sz;
639
640 sz = sizeof ssock;
641 if (getsockname(p->fd, sock, &sz) == -1) {
642 log_Printf(LogPHASE, "%s: Link is a closed socket !\n", p->link.name);
643 close(p->fd);
644 p->fd = -1;
645 return NULL;
646 }
647
648 if (sock->sa_family == AF_NETGRAPH) {
649 /*
650 * It's a netgraph node... We can't determine hook names etc, so we
651 * stay pretty impartial....
652 */
653 log_Printf(LogPHASE, "%s: Link is a netgraph node\n", p->link.name);
654
655 if ((dev = malloc(sizeof *dev)) == NULL) {
656 log_Printf(LogWARN, "%s: Cannot allocate an ether device: %s\n",
657 p->link.name, strerror(errno));
658 return NULL;
659 }
660
661 memcpy(&dev->dev, &baseetherdevice, sizeof dev->dev);
662 dev->cs = -1;
663 dev->timeout = 0;
664 dev->connected = CARRIER_OK;
665 *dev->hook = '\0';
666 }
667 }
668 }
669
670 if (dev) {
671 physical_SetupStack(p, dev->dev.name, PHYSICAL_FORCE_SYNCNOACF);
672
673 /* Moan about (and fix) invalid LCP configurations */
674 if (p->link.lcp.cfg.mru > 1492) {
675 log_Printf(LogWARN, "%s: Reducing MRU to 1492\n", p->link.name);
676 p->link.lcp.cfg.mru = 1492;
677 }
678 if (p->dl->bundle->cfg.mtu > 1492) {
679 log_Printf(LogWARN, "%s: Reducing MTU to 1492\n", p->link.name);
680 p->dl->bundle->cfg.mtu = 1492;
681 }
682
|
| 683 if (path != NULL) {
684 /* Mark the interface as UP if it's not already */
685
686 path[ifacelen] = '\0'; /* Remove the trailing ':' */
687 if (!iface_SetFlags(path, IFF_UP))
688 log_Printf(LogWARN, "%s: Failed to set the IFF_UP flag on %s\n",
689 p->link.name, path);
690 }
691
|
677 return &dev->dev;
678 }
679
680 return NULL;
681}
| 692 return &dev->dev;
693 }
694
695 return NULL;
696}
|