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--- old/usr/src/lib/brand/lx/lx_init/lxinit.c
+++ new/usr/src/lib/brand/lx/lx_init/lxinit.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright 2015 Joyent, Inc.
24 24 */
25 25
26 26 /*
27 27 * lxinit performs zone-specific initialization prior to handing control to the
28 28 * guest Linux init. This primarily consists of:
29 29 *
30 30 * - Starting ipmgmtd
31 31 * - Configuring network interfaces
32 32 * - Adding a default route
33 33 */
34 34
35 35 #include <ctype.h>
36 36 #include <errno.h>
37 37 #include <fcntl.h>
38 38 #include <libgen.h>
39 39 #include <limits.h>
40 40 #include <net/if.h>
41 41 #include <stdarg.h>
42 42 #include <stdio.h>
43 43 #include <stdlib.h>
44 44 #include <string.h>
45 45 #include <strings.h>
46 46 #include <stropts.h>
47 47 #include <sys/ioccom.h>
48 48 #include <sys/stat.h>
49 49 #include <sys/systeminfo.h>
50 50 #include <sys/sockio.h>
51 51 #include <sys/types.h>
52 52 #include <sys/wait.h>
53 53 #include <sys/varargs.h>
54 54 #include <unistd.h>
55 55 #include <libintl.h>
56 56 #include <locale.h>
57 57 #include <libcmdutils.h>
58 58
59 59 #include <netinet/dhcp.h>
60 60 #include <dhcpagent_util.h>
61 61 #include <dhcpagent_ipc.h>
62 62
63 63 #include <arpa/inet.h>
64 64 #include <net/route.h>
65 65 #include <libipadm.h>
66 66 #include <libzonecfg.h>
67 67 #include <libinetutil.h>
68 68 #include <sys/lx_brand.h>
69 69
70 70 #include "run_command.h"
71 71
72 72 static void lxi_err(char *msg, ...) __NORETURN;
73 73 static void lxi_err(char *msg, ...);
74 74
75 75 #define IPMGMTD_PATH "/lib/inet/ipmgmtd"
76 76 #define IN_NDPD_PATH "/usr/lib/inet/in.ndpd"
77 77
78 78 #define PREFIX_LOG_WARN "lx_init warn: "
79 79 #define PREFIX_LOG_ERR "lx_init err: "
80 80
81 81 #define RTMBUFSZ (sizeof (struct rt_msghdr) + \
82 82 (3 * sizeof (struct sockaddr_in)))
83 83
84 84 ipadm_handle_t iph;
85 85
86 86 static void
87 87 lxi_err(char *msg, ...)
88 88 {
89 89 char buf[1024];
90 90 int len;
91 91 va_list ap;
92 92
93 93 va_start(ap, msg);
94 94 /*LINTED*/
95 95 len = vsnprintf(buf, sizeof (buf), msg, ap);
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96 96 va_end(ap);
97 97
98 98 (void) write(1, PREFIX_LOG_ERR, strlen(PREFIX_LOG_ERR));
99 99 (void) write(1, buf, len);
100 100 (void) write(1, "\n", 1);
101 101
102 102 /*
103 103 * Since a non-zero exit will cause the zone to reboot, a pause here
104 104 * will prevent a mis-configured zone from spinning in a reboot loop.
105 105 */
106 - pause();
106 + (void) pause();
107 107 exit(1);
108 108 /*NOTREACHED*/
109 109 }
110 110
111 111 static void
112 112 lxi_warn(char *msg, ...)
113 113 {
114 114 char buf[1024];
115 115 int len;
116 116 va_list ap;
117 117
118 118 va_start(ap, msg);
119 119 /*LINTED*/
120 120 len = vsnprintf(buf, sizeof (buf), msg, ap);
121 121 va_end(ap);
122 122
123 123 (void) write(1, PREFIX_LOG_WARN, strlen(PREFIX_LOG_WARN));
124 124 (void) write(1, buf, len);
125 125 (void) write(1, "\n", 1);
126 126 }
127 127
128 128 static void
129 129 lxi_log_open()
130 130 {
131 131 int fd = open("/dev/console", O_WRONLY);
132 132
133 133 if (fd < 0) {
134 134 /* hard to log at this point... */
135 135 exit(1);
136 136 } else if (fd != 1) {
137 137 /*
138 138 * Use stdout as the log fd. Init should start with no files
139 139 * open, so we should be required to perform this relocation
140 140 * every time.
141 141 */
142 142 if (dup2(fd, 1) != 1) {
143 143 exit(1);
144 144 }
145 145 }
146 146 }
147 147
148 148 static void
149 149 lxi_log_close()
150 150 {
151 151 (void) close(0);
152 152 (void) close(1);
153 153 }
154 154
155 155 static zone_dochandle_t
156 156 lxi_config_open()
157 157 {
158 158 zoneid_t zoneid;
159 159 char zonename[ZONENAME_MAX];
160 160 zone_dochandle_t handle;
161 161 zone_iptype_t iptype;
162 162 int res;
163 163
164 164 zoneid = getzoneid();
165 165 if (getzonenamebyid(zoneid, zonename, sizeof (zonename)) < 0) {
166 166 lxi_err("could not determine zone name");
167 167 }
168 168
169 169 if ((handle = zonecfg_init_handle()) == NULL)
170 170 lxi_err("internal libzonecfg.so.1 error", 0);
171 171
172 172 if ((res = zonecfg_get_handle(zonename, handle)) != Z_OK) {
173 173 zonecfg_fini_handle(handle);
174 174 lxi_err("could not locate zone config %d", res);
175 175 }
176 176
177 177 /*
178 178 * Only exclusive stack is supported.
179 179 */
180 180 if (zonecfg_get_iptype(handle, &iptype) != Z_OK ||
181 181 iptype != ZS_EXCLUSIVE) {
182 182 zonecfg_fini_handle(handle);
183 183 lxi_err("lx zones do not support shared IP stacks");
184 184 }
185 185
186 186 return (handle);
187 187
188 188 }
189 189
190 190 static int
191 191 zone_find_attr(struct zone_res_attrtab *attrs, const char *name,
192 192 const char **result)
193 193 {
194 194 while (attrs != NULL) {
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195 195 if (strncmp(attrs->zone_res_attr_name, name,
196 196 MAXNAMELEN) == 0) {
197 197 *result = attrs->zone_res_attr_value;
198 198 return (0);
199 199 }
200 200 attrs = attrs->zone_res_attr_next;
201 201 }
202 202 return (-1);
203 203 }
204 204
205 -void
205 +static void
206 206 lxi_svc_start(char *name, char *path, char *fmri)
207 207 {
208 208 pid_t pid;
209 209 int status;
210 - char *const argv[] = {
211 - name,
210 + char *argv[] = {
211 + NULL,
212 212 NULL
213 213 };
214 - char *const envp[] = {
215 - fmri,
214 + char *envp[] = {
215 + NULL,
216 216 NULL
217 217 };
218 + argv[0] = name;
219 + envp[0] = fmri;
218 220
219 221 pid = fork();
220 222 if (pid == -1) {
221 223 lxi_err("fork() failed: %s", strerror(errno));
222 224 }
223 225
224 226 if (pid == 0) {
225 227 /* child */
226 228 const char *zroot = zone_get_nroot();
227 229 char cmd[MAXPATHLEN];
228 230
229 231 /*
230 232 * Construct the full path to the binary, including the native
231 233 * system root (e.g. "/native") if in use for this zone:
232 234 */
233 235 (void) snprintf(cmd, sizeof (cmd), "%s%s", zroot != NULL ?
234 236 zroot : "", path);
235 237
236 - execve(cmd, argv, envp);
238 + (void) execve(cmd, argv, envp);
237 239
238 240 lxi_err("execve(%s) failed: %s", cmd, strerror(errno));
239 241 /* NOTREACHED */
240 242 }
241 243
242 244 /* parent */
243 - while (wait(&status) != pid) {
244 - /* EMPTY */;
245 - }
245 + while (wait(&status) != pid)
246 + ;
246 247
247 248 if (WIFEXITED(status)) {
248 249 if (WEXITSTATUS(status) != 0) {
249 250 lxi_err("%s[%d] exited: %d", name,
250 251 (int)pid, WEXITSTATUS(status));
251 252 }
252 253 } else if (WIFSIGNALED(status)) {
253 254 lxi_err("%s[%d] died on signal: %d", name,
254 255 (int)pid, WTERMSIG(status));
255 256 } else {
256 257 lxi_err("%s[%d] failed in unknown way", name,
257 258 (int)pid);
258 259 }
259 260 }
260 261
261 262 void
262 263 lxi_net_ipmgmtd_start()
263 264 {
264 265 lxi_svc_start("ipmgmtd", IPMGMTD_PATH,
265 266 "SMF_FMRI=svc:/network/ip-interface-management:default");
266 267 }
267 268
268 269 void
269 270 lxi_net_ndpd_start()
270 271 {
271 272 lxi_svc_start("in.ndpd", IN_NDPD_PATH,
272 273 "SMF_FMRI=svc:/network/routing/ndp:default");
273 274 }
274 275
275 276
276 277 static void
277 278 lxi_net_ipadm_open()
278 279 {
279 280 ipadm_status_t status;
280 281
281 282 if ((status = ipadm_open(&iph, IPH_LEGACY)) != IPADM_SUCCESS) {
282 283 lxi_err("Error opening ipadm handle: %s",
283 284 ipadm_status2str(status));
284 285 }
285 286 }
286 287
287 288 static void
288 289 lxi_net_ipadm_close()
289 290 {
290 291 ipadm_close(iph);
291 292 }
292 293
293 294 void
294 295 lxi_net_plumb(const char *iface)
295 296 {
296 297 ipadm_status_t status;
297 298 char ifbuf[LIFNAMSIZ];
298 299
299 300 /* ipadm_create_if stomps on ifbuf, so create a copy: */
300 301 (void) strncpy(ifbuf, iface, sizeof (ifbuf));
301 302
302 303 if ((status = ipadm_create_if(iph, ifbuf, AF_INET, IPADM_OPT_ACTIVE))
303 304 != IPADM_SUCCESS) {
304 305 lxi_err("ipadm_create_if error %d: %s/v4: %s",
305 306 status, iface, ipadm_status2str(status));
306 307 }
307 308
308 309 if ((status = ipadm_create_if(iph, ifbuf, AF_INET6, IPADM_OPT_ACTIVE))
309 310 != IPADM_SUCCESS) {
310 311 lxi_err("ipadm_create_if error %d: %s/v6: %s",
311 312 status, iface, ipadm_status2str(status));
312 313 }
313 314 }
314 315
315 316 static int
316 317 lxi_getif(int af, char *iface, int len, boolean_t first_ipv4_configured)
317 318 {
318 319 struct lifreq lifr;
319 320 int s = socket(af, SOCK_DGRAM, 0);
320 321 if (s < 0) {
321 322 lxi_warn("socket error %d: bringing up %s: %s",
322 323 errno, iface, strerror(errno));
323 324 return (-1);
324 325 }
325 326
326 327 /*
327 328 * We need a new logical interface for every IP address we add, except
328 329 * for the very first IPv4 address.
329 330 */
330 331 if (af == AF_INET6 || first_ipv4_configured) {
331 332 (void) strncpy(lifr.lifr_name, iface, sizeof (lifr.lifr_name));
332 333 (void) memset(&lifr.lifr_addr, 0, sizeof (lifr.lifr_addr));
333 334 if (ioctl(s, SIOCLIFADDIF, (caddr_t)&lifr) < 0) {
334 335 if (close(s) != 0) {
335 336 lxi_warn("failed to close socket: %s\n",
336 337 strerror(errno));
337 338 }
338 339 return (-1);
339 340 }
340 341 (void) strncpy(iface, lifr.lifr_name, len);
341 342 }
342 343
343 344 if (close(s) != 0) {
344 345 lxi_warn("failed to close socket: %s\n",
345 346 strerror(errno));
346 347 }
347 348 return (0);
348 349 }
349 350
350 351 static int
351 352 lxi_iface_ip(const char *origiface, const char *addr,
352 353 boolean_t *first_ipv4_configured)
353 354 {
354 355 static int addrnum = 0;
355 356 ipadm_status_t status;
356 357 ipadm_addrobj_t ipaddr = NULL;
357 358 char iface[LIFNAMSIZ];
358 359 char aobjname[IPADM_AOBJSIZ];
359 360 int af, err = 0;
360 361
361 362 (void) strncpy(iface, origiface, sizeof (iface));
362 363
363 364 af = strstr(addr, ":") == NULL ? AF_INET : AF_INET6;
364 365 if (lxi_getif(af, iface, sizeof (iface), *first_ipv4_configured) != 0) {
365 366 lxi_warn("failed to create new logical interface "
366 367 "on %s: %s", origiface, strerror(errno));
367 368 return (-1);
368 369 }
369 370
370 371 (void) snprintf(aobjname, IPADM_AOBJSIZ, "%s/addr%d", iface,
371 372 addrnum++);
372 373
373 374 if ((status = ipadm_create_addrobj(IPADM_ADDR_STATIC, aobjname,
374 375 &ipaddr)) != IPADM_SUCCESS) {
375 376 lxi_warn("ipadm_create_addrobj error %d: addr %s, "
376 377 "interface %s: %s\n", status, addr, iface,
377 378 ipadm_status2str(status));
378 379 return (-2);
379 380 }
380 381
381 382 if ((status = ipadm_set_addr(ipaddr, addr, AF_UNSPEC))
382 383 != IPADM_SUCCESS) {
383 384 lxi_warn("ipadm_set_addr error %d: addr %s"
384 385 ", interface %s: %s\n", status, addr,
385 386 iface, ipadm_status2str(status));
386 387 err = -3;
387 388 goto done;
388 389 }
389 390
390 391 if ((status = ipadm_create_addr(iph, ipaddr,
391 392 IPADM_OPT_ACTIVE | IPADM_OPT_UP)) != IPADM_SUCCESS) {
392 393 lxi_warn("ipadm_create_addr error for %s: %s\n", iface,
393 394 ipadm_status2str(status));
394 395 err = -4;
395 396 goto done;
396 397 }
397 398
398 399 if (af == AF_INET) {
399 400 *first_ipv4_configured = B_TRUE;
400 401 }
401 402
402 403 done:
403 404 ipadm_destroy_addrobj(ipaddr);
404 405 return (err);
405 406 }
406 407
407 408 static int
408 409 lxi_iface_dhcp(const char *origiface, boolean_t *first_ipv4_configured)
409 410 {
410 411 dhcp_ipc_request_t *dhcpreq = NULL;
411 412 dhcp_ipc_reply_t *dhcpreply = NULL;
412 413 int err = 0, timeout = 5;
413 414 char iface[LIFNAMSIZ];
414 415
415 416 (void) strncpy(iface, origiface, sizeof (iface));
416 417
417 418 if (lxi_getif(AF_INET, iface, sizeof (iface), *first_ipv4_configured)
418 419 != 0) {
419 420 lxi_warn("failed to create new logical interface "
420 421 "on %s: %s", origiface, strerror(errno));
421 422 return (-1);
422 423 }
423 424
424 425 if (dhcp_start_agent(timeout) != 0) {
425 426 lxi_err("Failed to start dhcpagent\n");
426 427 /* NOTREACHED */
427 428 }
428 429
429 430 dhcpreq = dhcp_ipc_alloc_request(DHCP_START, iface,
430 431 NULL, 0, DHCP_TYPE_NONE);
431 432 if (dhcpreq == NULL) {
432 433 lxi_warn("Unable to allocate memory "
433 434 "to start DHCP on %s\n", iface);
434 435 return (-1);
435 436 }
436 437
437 438 err = dhcp_ipc_make_request(dhcpreq, &dhcpreply, timeout);
438 439 if (err != 0) {
439 440 free(dhcpreq);
440 441 lxi_warn("Failed to start DHCP on %s: %s\n", iface,
441 442 dhcp_ipc_strerror(err));
442 443 return (-1);
443 444 }
444 445 err = dhcpreply->return_code;
445 446 if (err != 0) {
446 447 lxi_warn("Failed to start DHCP on %s: %s\n", iface,
447 448 dhcp_ipc_strerror(err));
448 449 goto done;
449 450 }
450 451
451 452 *first_ipv4_configured = B_TRUE;
452 453
453 454 done:
454 455 free(dhcpreq);
455 456 free(dhcpreply);
456 457 return (err);
457 458 }
458 459
459 460 /*
460 461 * Initialize an IPv6 link-local address on a given interface
461 462 */
462 463 static int
463 464 lxi_iface_ipv6_link_local(const char *iface)
464 465 {
465 466 struct lifreq lifr;
466 467 int s;
467 468
468 469 s = socket(AF_INET6, SOCK_DGRAM, 0);
469 470 if (s == -1) {
470 471 lxi_warn("socket error %d: bringing up %s: %s",
471 472 errno, iface, strerror(errno));
472 473 }
473 474
474 475 (void) strncpy(lifr.lifr_name, iface, sizeof (lifr.lifr_name));
475 476 if (ioctl(s, SIOCGLIFFLAGS, (caddr_t)&lifr) < 0) {
476 477 lxi_warn("SIOCGLIFFLAGS error %d: bringing up %s: %s",
477 478 errno, iface, strerror(errno));
478 479 return (-1);
479 480 }
480 481
481 482 lifr.lifr_flags |= IFF_UP;
482 483 if (ioctl(s, SIOCSLIFFLAGS, (caddr_t)&lifr) < 0) {
483 484 lxi_warn("SIOCSLIFFLAGS error %d: bringing up %s: %s",
484 485 errno, iface, strerror(errno));
485 486 return (-1);
486 487 }
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487 488
488 489 (void) close(s);
489 490 return (0);
490 491 }
491 492
492 493 static int
493 494 lxi_iface_gateway(const char *iface, const char *dst, int dstpfx,
494 495 const char *gwaddr)
495 496 {
496 497 int idx, len, sockfd;
497 - char rtbuf[RTMBUFSZ];
498 + /* For lint-happy alignment, use a uint32_t array... */
499 + uint32_t rtbuf[RTMBUFSZ / sizeof (uint32_t)];
498 500 struct rt_msghdr *rtm = (struct rt_msghdr *)rtbuf;
499 - struct sockaddr_in *dst_sin = (struct sockaddr_in *)
500 - (rtbuf + sizeof (struct rt_msghdr));
501 + struct sockaddr_in *dst_sin = (struct sockaddr_in *)(rtm + 1);
501 502 struct sockaddr_in *gw_sin = (struct sockaddr_in *)(dst_sin + 1);
502 503 struct sockaddr_in *netmask_sin = (struct sockaddr_in *)(gw_sin + 1);
503 504
504 505 (void) bzero(rtm, RTMBUFSZ);
505 506 rtm->rtm_addrs = RTA_DST | RTA_GATEWAY | RTA_NETMASK;
506 507 rtm->rtm_flags = RTF_UP | RTF_STATIC | RTF_GATEWAY;
507 508 rtm->rtm_msglen = sizeof (rtbuf);
508 509 rtm->rtm_pid = getpid();
509 510 rtm->rtm_type = RTM_ADD;
510 511 rtm->rtm_version = RTM_VERSION;
511 512
512 513
513 514 /*
514 515 * The destination and netmask components have already been zeroed,
515 516 * which represents the default gateway. If we were passed a more
516 517 * specific destination network, use that instead.
517 518 */
518 519 dst_sin->sin_family = AF_INET;
519 520 netmask_sin->sin_family = AF_INET;
520 521 if (dst != NULL) {
521 522 struct sockaddr *mask = (struct sockaddr *)netmask_sin;
522 523
523 524 if ((inet_pton(AF_INET, dst, &(dst_sin->sin_addr))) != 1 ||
524 525 plen2mask(dstpfx, AF_INET, mask) != 0) {
525 526 lxi_warn("bad destination network %s/%d: %s", dst,
526 527 dstpfx, strerror(errno));
527 528 return (-1);
528 529 }
529 530 }
530 531
531 532 if ((inet_pton(AF_INET, gwaddr, &(gw_sin->sin_addr))) != 1) {
532 533 lxi_warn("bad gateway %s: %s", gwaddr, strerror(errno));
533 534 return (-1);
534 535 }
535 536
536 537 if (iface != NULL) {
537 538 if ((idx = if_nametoindex(iface)) == 0) {
538 539 lxi_warn("unable to get interface index for %s: %s\n",
539 540 iface, strerror(errno));
540 541 return (-1);
541 542 }
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542 543 rtm->rtm_index = idx;
543 544 }
544 545
545 546 if ((sockfd = socket(PF_ROUTE, SOCK_RAW, AF_INET)) < 0) {
546 547 lxi_warn("socket(PF_ROUTE): %s\n", strerror(errno));
547 548 return (-1);
548 549 }
549 550
550 551 if ((len = write(sockfd, rtbuf, rtm->rtm_msglen)) < 0) {
551 552 lxi_warn("could not write rtmsg: %s", strerror(errno));
552 - close(sockfd);
553 + (void) close(sockfd);
553 554 return (-1);
554 555 } else if (len < rtm->rtm_msglen) {
555 556 lxi_warn("write() rtmsg incomplete");
556 - close(sockfd);
557 + (void) close(sockfd);
557 558 return (-1);
558 559 }
559 560
560 - close(sockfd);
561 + (void) close(sockfd);
561 562 return (0);
562 563 }
563 564
564 565 static void
565 566 lxi_net_loopback()
566 567 {
567 568 const char *iface = "lo0";
568 569 boolean_t first_ipv4_configured = B_FALSE;
569 570
570 571 lxi_net_plumb(iface);
571 572 (void) lxi_iface_ip(iface, "127.0.0.1/8", &first_ipv4_configured);
572 573 (void) lxi_iface_ipv6_link_local(iface);
573 574 }
574 575
575 -
576 -/*
577 - * This function is used when the "ips" property doesn't exist in a zone's
578 - * configuration. It may be an older configuration, so we should search for
579 - * "ip" and "netmask" and convert them into the new format.
580 - */
581 -static int
582 -lxi_get_old_ip(struct zone_res_attrtab *attrs, const char **ipaddrs,
583 - char *cidraddr, int len)
584 -{
585 -
586 - const char *netmask;
587 - int prefixlen;
588 - struct sockaddr_in mask_sin;
589 -
590 - lxi_warn("Could not find \"ips\" property for zone. Looking "
591 - "for older \"ip\" and \"netmask\" properties, instead.");
592 -
593 - if (zone_find_attr(attrs, "ip", ipaddrs) != 0) {
594 - return (-1);
595 - }
596 -
597 - if (strcmp(*ipaddrs, "dhcp") == 0) {
598 - return (0);
599 - }
600 -
601 - if (zone_find_attr(attrs, "netmask", &netmask) != 0) {
602 - lxi_err("could not find netmask for interface");
603 - /* NOTREACHED */
604 - }
605 -
606 - /* Convert the netmask to a number */
607 - mask_sin.sin_family = AF_INET;
608 - if (inet_pton(AF_INET, netmask, &mask_sin.sin_addr) != 1) {
609 - lxi_err("invalid netmask address: %s\n",
610 - strerror(errno));
611 - /* NOTREACHED */
612 - }
613 - prefixlen = mask2plen((struct sockaddr *)&mask_sin);
614 -
615 - /*
616 - * Write out the IP address in the new format and use
617 - * that instead
618 - */
619 - (void) snprintf(cidraddr, len, "%s/%d", *ipaddrs, prefixlen);
620 -
621 - *ipaddrs = cidraddr;
622 - return (0);
623 -}
624 -
625 576 static void
626 577 lxi_net_setup(zone_dochandle_t handle)
627 578 {
628 579 struct zone_nwiftab lookup;
629 580 boolean_t do_addrconf = B_FALSE;
630 581
631 582 if (zonecfg_setnwifent(handle) != Z_OK)
632 583 return;
633 584 while (zonecfg_getnwifent(handle, &lookup) == Z_OK) {
634 585 const char *iface = lookup.zone_nwif_physical;
635 586 struct zone_res_attrtab *attrs = lookup.zone_nwif_attrp;
636 587 const char *ipaddrs, *primary, *gateway;
637 - char ipaddrs_copy[MAXNAMELEN], cidraddr[BUFSIZ],
588 + char ipaddrs_copy[MAXNAMELEN], /* cidraddr[BUFSIZ], */
638 589 *ipaddr, *tmp, *lasts;
639 590 boolean_t first_ipv4_configured = B_FALSE;
640 591 boolean_t *ficp = &first_ipv4_configured;
592 + boolean_t no_zonecfg;
641 593
594 + /*
595 + * Regardless of whether we're configured in zonecfg(1M), or
596 + * configured by other means, make sure we plumb every
597 + * physical=<foo> for IPv4 and IPv6.
598 + */
642 599 lxi_net_plumb(iface);
643 - if (zone_find_attr(attrs, "ips", &ipaddrs) != 0 &&
644 - lxi_get_old_ip(attrs, &ipaddrs, cidraddr, BUFSIZ) != 0) {
645 - lxi_warn("Could not find a valid network configuration "
646 - "for the %s interface", iface);
647 - continue;
600 +
601 + if (zone_find_attr(attrs, "ips", &ipaddrs) != 0 /* &&
602 + lxi_get_old_ip(attrs, &ipaddrs, cidraddr, BUFSIZ) != 0*/) {
603 + /*
604 + * Do not panic. This interface has no in-zonecfg(1M)
605 + * configuration. We keep a warning around for now.
606 + */
607 + lxi_warn("Could not find zonecfg(1M) network "
608 + "configuration for the %s interface", iface);
609 + no_zonecfg = B_TRUE;
610 + } else {
611 + no_zonecfg = B_FALSE;
648 612 }
649 613
650 614 if (lxi_iface_ipv6_link_local(iface) != 0) {
651 615 lxi_warn("unable to bring up link-local address on "
652 616 "interface %s", iface);
653 617 }
654 618
655 619 /*
656 - * If we're going to be doing DHCP, we have to do it first since
657 - * dhcpagent doesn't like to operate on non-zero logical
620 + * Every thing else below only happens if we have zonecfg(1M)
621 + * network configuration.
622 + */
623 + if (no_zonecfg)
624 + continue;
625 +
626 + /*
627 + * If we're going to be doing DHCP, we have to do it first
628 + * since dhcpagent doesn't like to operate on non-zero logical
658 629 * interfaces.
659 630 */
660 631 if (strstr(ipaddrs, "dhcp") != NULL &&
661 632 lxi_iface_dhcp(iface, ficp) != 0) {
662 633 lxi_warn("Failed to start DHCP on %s\n", iface);
663 634 }
664 635
665 636 /*
666 637 * Copy the ipaddrs string, since strtok_r will write NUL
667 638 * characters into it.
668 639 */
669 640 (void) strlcpy(ipaddrs_copy, ipaddrs, MAXNAMELEN);
670 641 tmp = ipaddrs_copy;
671 642
672 643 /*
673 644 * Iterate over each IP and then set it up on the interface.
674 645 */
675 646 while ((ipaddr = strtok_r(tmp, ",", &lasts)) != NULL) {
676 647 tmp = NULL;
677 648 if (strcmp(ipaddr, "addrconf") == 0) {
678 649 do_addrconf = B_TRUE;
679 650 } else if (strcmp(ipaddr, "dhcp") == 0) {
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680 651 continue;
681 652 } else if (lxi_iface_ip(iface, ipaddr, ficp) < 0) {
682 653 lxi_warn("Unable to add new IP address (%s) "
683 654 "to interface %s", ipaddr, iface);
684 655 }
685 656 }
686 657
687 658 if (zone_find_attr(attrs, "primary", &primary) == 0 &&
688 659 strncmp(primary, "true", MAXNAMELEN) == 0 &&
689 660 zone_find_attr(attrs, "gateway", &gateway) == 0) {
690 - lxi_iface_gateway(iface, NULL, 0, gateway);
661 + if (lxi_iface_gateway(iface, NULL, 0, gateway) != 0) {
662 + lxi_err("default route on %s -> %s failed",
663 + iface, gateway);
664 + }
691 665 }
692 666 }
693 667
694 668 if (do_addrconf) {
695 669 lxi_net_ndpd_start();
696 670 }
697 671
698 672 (void) zonecfg_endnwifent(handle);
699 673 }
700 674
701 675 static void
702 676 lxi_net_static_route(const char *line)
703 677 {
704 678 /*
705 679 * Each static route line is a string of the form:
706 680 *
707 681 * "10.77.77.2|10.1.1.0/24|false"
708 682 *
709 683 * i.e. gateway address, destination network, and whether this is
710 684 * a "link local" route or a next hop route.
711 685 */
712 686 custr_t *cu = NULL;
713 687 char *gw = NULL, *dst = NULL;
714 688 int pfx = -1;
715 689 int i;
716 690
717 691 if (custr_alloc(&cu) != 0) {
718 692 lxi_err("custr_alloc failure");
719 693 }
720 694
721 695 for (i = 0; line[i] != '\0'; i++) {
722 696 if (gw == NULL) {
723 697 if (line[i] == '|') {
724 698 if ((gw = strdup(custr_cstr(cu))) == NULL) {
725 699 lxi_err("strdup failure");
726 700 }
727 701 custr_reset(cu);
728 702 } else {
729 703 if (custr_appendc(cu, line[i]) != 0) {
730 704 lxi_err("custr_appendc failure");
731 705 }
732 706 }
733 707 continue;
734 708 }
735 709
736 710 if (dst == NULL) {
737 711 if (line[i] == '/') {
738 712 if ((dst = strdup(custr_cstr(cu))) == NULL) {
739 713 lxi_err("strdup failure");
740 714 }
741 715 custr_reset(cu);
742 716 } else {
743 717 if (custr_appendc(cu, line[i]) != 0) {
744 718 lxi_err("custr_appendc failure");
745 719 }
746 720 }
747 721 continue;
748 722 }
749 723
750 724 if (pfx == -1) {
751 725 if (line[i] == '|') {
752 726 pfx = atoi(custr_cstr(cu));
753 727 custr_reset(cu);
754 728 } else {
755 729 if (custr_appendc(cu, line[i]) != 0) {
756 730 lxi_err("custr_appendc failure");
757 731 }
758 732 }
759 733 continue;
760 734 }
761 735
762 736 if (custr_appendc(cu, line[i]) != 0) {
763 737 lxi_err("custr_appendc failure");
764 738 }
765 739 }
766 740
767 741 /*
768 742 * We currently only support "next hop" routes, so ensure that
769 743 * "linklocal" is false:
770 744 */
771 745 if (strcmp(custr_cstr(cu), "false") != 0) {
772 746 lxi_warn("invalid static route: %s", line);
773 747 }
774 748
775 749 if (lxi_iface_gateway(NULL, dst, pfx, gw) != 0) {
776 750 lxi_err("failed to add route: %s/%d -> %s", dst, pfx, gw);
777 751 }
778 752
779 753 custr_free(cu);
780 754 free(gw);
781 755 free(dst);
782 756 }
783 757
784 758 static void
785 759 lxi_net_static_routes(void)
786 760 {
787 761 const char *cmd = "/native/usr/lib/brand/lx/routeinfo";
788 762 char *const argv[] = { "routeinfo", NULL };
789 763 char *const envp[] = { NULL };
790 764 int code;
791 765 struct stat st;
792 766 char errbuf[512];
793 767
794 768 if (stat(cmd, &st) != 0 || !S_ISREG(st.st_mode)) {
795 769 /*
796 770 * This binary is (potentially) shipped from another
797 771 * consolidation. If it does not exist, then the platform does
798 772 * not currently support static routes for LX-branded zones.
799 773 */
800 774 return;
801 775 }
802 776
803 777 /*
804 778 * Run the command, firing the callback for each line that it
805 779 * outputs. When this function returns, static route processing
806 780 * is complete.
807 781 */
808 782 if (run_command(cmd, argv, envp, errbuf, sizeof (errbuf),
809 783 lxi_net_static_route, &code) != 0 || code != 0) {
810 784 lxi_err("failed to run \"%s\": %s", cmd, errbuf);
811 785 }
812 786 }
813 787
814 788 static void
815 789 lxi_config_close(zone_dochandle_t handle)
816 790 {
817 791 zonecfg_fini_handle(handle);
818 792 }
819 793
820 794 static void
821 795 lxi_init_exec(char **argv)
822 796 {
823 797 const char *cmd = "/sbin/init";
824 798 char *const envp[] = { "container=zone", NULL };
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825 799 int e;
826 800
827 801 argv[0] = "init";
828 802
829 803 /*
830 804 * systemd uses the 'container' env var to determine it is running
831 805 * inside a container. It only supports a few well-known types and
832 806 * treats anything else as 'other' but this is enough to make it
833 807 * behave better inside a zone. See 'detect_container' in systemd.
834 808 */
835 - execve(cmd, argv, envp);
809 + (void) execve(cmd, argv, envp);
836 810 e = errno;
837 811
838 812 /*
839 813 * Because stdout was closed prior to exec, it must be opened again in
840 814 * the face of failure to log the error.
841 815 */
842 816 lxi_log_open();
843 817 lxi_err("execve(%s) failed: %s", cmd, strerror(e));
844 818 }
845 819
846 820 /*ARGSUSED*/
847 821 int
848 822 main(int argc, char *argv[])
849 823 {
850 824 zone_dochandle_t handle;
851 825
852 826 lxi_log_open();
853 827
854 828 lxi_net_ipmgmtd_start();
855 829 lxi_net_ipadm_open();
856 830
857 831 handle = lxi_config_open();
858 832 lxi_net_loopback();
859 833 lxi_net_setup(handle);
860 834 lxi_config_close(handle);
861 835
862 836 lxi_net_static_routes();
863 837
864 838 lxi_net_ipadm_close();
865 839
866 840 lxi_log_close();
867 841
868 842 lxi_init_exec(argv);
869 843
870 844 /* NOTREACHED */
871 845 return (0);
872 846 }
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