net.c revision 1.13
1 /* $NetBSD: net.c,v 1.13 2014/09/13 09:38:43 roy Exp $ */ 2 3 /* 4 * Copyright 1997 Piermont Information Systems Inc. 5 * All rights reserved. 6 * 7 * Written by Philip A. Nelson for Piermont Information Systems Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of Piermont Information Systems Inc. may not be used to endorse 18 * or promote products derived from this software without specific prior 19 * written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE 25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 */ 34 35 /* net.c -- routines to fetch files off the network. */ 36 37 #include <sys/ioctl.h> 38 #include <sys/param.h> 39 #include <sys/resource.h> 40 #include <sys/socket.h> 41 #include <sys/stat.h> 42 #include <sys/statvfs.h> 43 #include <sys/statvfs.h> 44 #include <sys/sysctl.h> 45 #include <sys/wait.h> 46 #include <arpa/inet.h> 47 #include <net/if.h> 48 #include <net/if_media.h> 49 #include <netinet/in.h> 50 51 #include <err.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <string.h> 55 #include <curses.h> 56 #include <time.h> 57 #include <unistd.h> 58 59 #include "defs.h" 60 #include "md.h" 61 #include "msg_defs.h" 62 #include "menu_defs.h" 63 #include "txtwalk.h" 64 65 int network_up = 0; 66 /* Access to network information */ 67 #define MAX_NETS 15 68 struct net_desc { 69 char if_dev[STRSIZE]; 70 char name[STRSIZE]; // TODO 71 }; 72 73 static char net_dev[STRSIZE]; 74 static char net_domain[STRSIZE]; 75 static char net_host[STRSIZE]; 76 static char net_ip[SSTRSIZE]; 77 static char net_srv_ip[SSTRSIZE]; 78 static char net_mask[SSTRSIZE]; 79 char net_namesvr[STRSIZE]; 80 static char net_defroute[STRSIZE]; 81 static char net_media[STRSIZE]; 82 static char sl_flags[STRSIZE]; 83 static int net_dhcpconf; 84 #define DHCPCONF_IPADDR 0x01 85 #define DHCPCONF_NAMESVR 0x02 86 #define DHCPCONF_HOST 0x04 87 #define DHCPCONF_DOMAIN 0x08 88 #ifdef INET6 89 static char net_ip6[STRSIZE]; 90 #define IP6CONF_AUTOHOST 0x01 91 #endif 92 93 94 /* URL encode unsafe characters. */ 95 96 static char *url_encode (char *dst, const char *src, const char *ep, 97 const char *safe_chars, 98 int encode_leading_slash); 99 100 static void write_etc_hosts(FILE *f); 101 102 #define DHCPCD "/sbin/dhcpcd" 103 #include <signal.h> 104 static int config_dhcp(char *); 105 106 #ifdef INET6 107 static int is_v6kernel (void); 108 #endif 109 110 /* 111 * URL encode unsafe characters. See RFC 1738. 112 * 113 * Copies src string to dst, encoding unsafe or reserved characters 114 * in %hex form as it goes, and returning a pointer to the result. 115 * The result is always a nul-terminated string even if it had to be 116 * truncated to avoid overflowing the available space. 117 * 118 * This url_encode() function does not operate on complete URLs, it 119 * operates on strings that make up parts of URLs. For example, in a 120 * URL like "ftp://username:password@host/path", the username, password, 121 * host and path should each be encoded separately before they are 122 * joined together with the punctuation characters. 123 * 124 * In most ordinary use, the path portion of a URL does not start with 125 * a slash; the slash is a separator between the host portion and the 126 * path portion, and is dealt with by software outside the url_encode() 127 * function. However, it is valid for url_encode() to be passed a 128 * string that does begin with a slash. For example, the string might 129 * represent a password, or a path part of a URL that the user really 130 * does want to begin with a slash. 131 * 132 * len is the length of the destination buffer. The result will be 133 * truncated if necessary to fit in the destination buffer. 134 * 135 * safe_chars is a string of characters that should not be encoded. If 136 * safe_chars is non-NULL, any characters in safe_chars as well as any 137 * alphanumeric characters will be copied from src to dst without 138 * encoding. Some potentially useful settings for this parameter are: 139 * 140 * NULL Everything is encoded (even alphanumerics) 141 * "" Everything except alphanumerics are encoded 142 * "/" Alphanumerics and '/' remain unencoded 143 * "$-_.+!*'()," Consistent with a strict reading of RFC 1738 144 * "$-_.+!*'(),/" As above, except '/' is not encoded 145 * "-_.+!,/" As above, except shell special characters are encoded 146 * 147 * encode_leading_slash is a flag that determines whether or not to 148 * encode a leading slash in a string. If this flag is set, and if the 149 * first character in the src string is '/', then the leading slash will 150 * be encoded (as "%2F"), even if '/' is one of the characters in the 151 * safe_chars string. Note that only the first character of the src 152 * string is affected by this flag, and that leading slashes are never 153 * deleted, but either retained unchanged or encoded. 154 * 155 * Unsafe and reserved characters are defined in RFC 1738 section 2.2. 156 * The most important parts are: 157 * 158 * The characters ";", "/", "?", ":", "@", "=" and "&" are the 159 * characters which may be reserved for special meaning within a 160 * scheme. No other characters may be reserved within a scheme. 161 * [...] 162 * 163 * Thus, only alphanumerics, the special characters "$-_.+!*'(),", 164 * and reserved characters used for their reserved purposes may be 165 * used unencoded within a URL. 166 * 167 */ 168 169 #define RFC1738_SAFE "$-_.+!*'()," 170 #define RFC1738_SAFE_LESS_SHELL "-_.+!," 171 #define RFC1738_SAFE_LESS_SHELL_PLUS_SLASH "-_.+!,/" 172 173 static char * 174 url_encode(char *dst, const char *src, const char *ep, 175 const char *safe_chars, int encode_leading_slash) 176 { 177 int ch; 178 179 ep--; 180 181 for (; dst < ep; src++) { 182 ch = *src & 0xff; 183 if (ch == 0) 184 break; 185 if (safe_chars != NULL && 186 (ch != '/' || !encode_leading_slash) && 187 (isalnum(ch) || strchr(safe_chars, ch))) { 188 *dst++ = ch; 189 } else { 190 /* encode this char */ 191 if (ep - dst < 3) 192 break; 193 snprintf(dst, ep - dst, "%%%02X", ch); 194 dst += 3; 195 } 196 encode_leading_slash = 0; 197 } 198 *dst = '\0'; 199 return dst; 200 } 201 202 static const char *ignored_if_names[] = { 203 "eon", /* netiso */ 204 "gre", /* net */ 205 "ipip", /* netinet */ 206 "gif", /* netinet6 */ 207 "faith", /* netinet6 */ 208 "lo", /* net */ 209 "lo0", /* net */ 210 #if 0 211 "mdecap", /* netinet -- never in IF list (?) XXX */ 212 #endif 213 "nsip", /* netns */ 214 "ppp", /* net */ 215 #if 0 216 "sl", /* net */ 217 #endif 218 "strip", /* net */ 219 "tun", /* net */ 220 /* XXX others? */ 221 NULL, 222 }; 223 224 static int 225 get_ifconfig_info(struct net_desc *devs) 226 { 227 char *buf_in; 228 char *buf_tmp; 229 const char **ignore; 230 char *buf; 231 char *tmp; 232 int textsize; 233 int i; 234 235 /* Get ifconfig information */ 236 textsize = collect(T_OUTPUT, &buf_in, "/sbin/ifconfig -l 2>/dev/null"); 237 if (textsize < 0) { 238 if (logfp) 239 (void)fprintf(logfp, 240 "Aborting: Could not run ifconfig.\n"); 241 (void)fprintf(stderr, "Could not run ifconfig."); 242 exit(1); 243 } 244 245 buf = malloc (STRSIZE * sizeof(char)); 246 for (i = 0, buf_tmp = buf_in; strlen(buf_tmp) > 0 && buf_tmp < buf_in + 247 strlen(buf_in);) { 248 tmp = stpncpy(buf, buf_tmp, strcspn(buf_tmp," \n")); 249 *tmp='\0'; 250 buf_tmp += (strcspn(buf_tmp, " \n") + 1) * sizeof(char); 251 252 /* Skip ignored interfaces */ 253 for (ignore = ignored_if_names; *ignore != NULL; ignore++) { 254 size_t len = strlen(*ignore); 255 if (strncmp(buf, *ignore, len) == 0 && 256 isdigit((unsigned char)buf[len])) 257 break; 258 } 259 if (*ignore != NULL) 260 continue; 261 262 strlcpy (devs[i].if_dev, buf, STRSIZE); 263 i++; 264 } 265 strcpy(devs[i].if_dev, "\0"); 266 267 free(buf); 268 free(buf_in); 269 return i; 270 } 271 272 static int 273 do_ifreq(struct ifreq *ifr, unsigned long cmd) 274 { 275 int sock; 276 int rval; 277 278 sock = socket(PF_INET, SOCK_DGRAM, 0); 279 if (sock == -1) 280 return -1; 281 282 memset(ifr, 0, sizeof *ifr); 283 strncpy(ifr->ifr_name, net_dev, sizeof ifr->ifr_name); 284 rval = ioctl(sock, cmd, ifr); 285 close(sock); 286 287 return rval; 288 } 289 290 static int 291 do_ifmreq(struct ifmediareq *ifmr, unsigned long cmd) 292 { 293 int sock; 294 int rval; 295 296 sock = socket(PF_INET, SOCK_DGRAM, 0); 297 if (sock == -1) 298 return -1; 299 300 memset(ifmr, 0, sizeof *ifmr); 301 strncpy(ifmr->ifm_name, net_dev, sizeof ifmr->ifm_name); 302 rval = ioctl(sock, cmd, ifmr); 303 close(sock); 304 305 return rval; 306 } 307 308 /* Fill in defaults network values for the selected interface */ 309 static void 310 get_ifinterface_info(void) 311 { 312 struct ifreq ifr; 313 struct ifmediareq ifmr; 314 struct sockaddr_in *sa_in = (void*)&ifr.ifr_addr; 315 int modew; 316 const char *media_opt; 317 const char *sep; 318 319 if (do_ifreq(&ifr, SIOCGIFADDR) == 0 && sa_in->sin_addr.s_addr != 0) 320 strlcpy(net_ip, inet_ntoa(sa_in->sin_addr), sizeof net_ip); 321 322 if (do_ifreq(&ifr, SIOCGIFNETMASK) == 0 && sa_in->sin_addr.s_addr != 0) 323 strlcpy(net_mask, inet_ntoa(sa_in->sin_addr), sizeof net_mask); 324 325 if (do_ifmreq(&ifmr, SIOCGIFMEDIA) == 0) { 326 /* Get the name of the media word */ 327 modew = ifmr.ifm_current; 328 strlcpy(net_media, get_media_subtype_string(modew), 329 sizeof net_media); 330 /* and add any media options */ 331 sep = " mediaopt "; 332 while ((media_opt = get_media_option_string(&modew)) != NULL) { 333 strlcat(net_media, sep, sizeof net_media); 334 strlcat(net_media, media_opt, sizeof net_media); 335 sep = ","; 336 } 337 } 338 } 339 340 #ifndef INET6 341 #define get_if6interface_info() 342 #else 343 static void 344 get_if6interface_info(void) 345 { 346 char *textbuf, *t; 347 int textsize; 348 349 textsize = collect(T_OUTPUT, &textbuf, 350 "/sbin/ifconfig %s inet6 2>/dev/null", net_dev); 351 if (textsize >= 0) { 352 char *p; 353 354 (void)strtok(textbuf, "\n"); /* ignore first line */ 355 while ((t = strtok(NULL, "\n")) != NULL) { 356 if (strncmp(t, "\tinet6 ", 7) != 0) 357 continue; 358 t += 7; 359 if (strstr(t, "tentative") || strstr(t, "duplicated")) 360 continue; 361 if (strncmp(t, "fe80:", 5) == 0) 362 continue; 363 364 p = t; 365 while (*p && *p != ' ' && *p != '\n') 366 p++; 367 *p = '\0'; 368 strlcpy(net_ip6, t, sizeof(net_ip6)); 369 break; 370 } 371 } 372 free(textbuf); 373 } 374 #endif 375 376 static void 377 get_host_info(void) 378 { 379 char hostname[MAXHOSTNAMELEN + 1]; 380 char *dot; 381 382 /* Check host (and domain?) name */ 383 if (gethostname(hostname, sizeof(hostname)) == 0 && hostname[0] != 0) { 384 hostname[sizeof(hostname) - 1] = 0; 385 /* check for a . */ 386 dot = strchr(hostname, '.'); 387 if (dot == NULL) { 388 /* if not found its just a host, punt on domain */ 389 strlcpy(net_host, hostname, sizeof net_host); 390 } else { 391 /* split hostname into host/domain parts */ 392 *dot++ = 0; 393 strlcpy(net_host, hostname, sizeof net_host); 394 strlcpy(net_domain, dot, sizeof net_domain); 395 } 396 } 397 } 398 399 /* 400 * recombine name parts split in get_host_info and config_network 401 * (common code moved here from write_etc_hosts) 402 */ 403 static char * 404 recombine_host_domain(void) 405 { 406 static char recombined[MAXHOSTNAMELEN + 1]; 407 int l = strlen(net_host) - strlen(net_domain); 408 409 strlcpy(recombined, net_host, sizeof(recombined)); 410 411 if (strlen(net_domain) != 0 && (l <= 0 || 412 net_host[l - 1] != '.' || 413 strcasecmp(net_domain, net_host + l) != 0)) { 414 /* net_host isn't an FQDN. */ 415 strlcat(recombined, ".", sizeof(recombined)); 416 strlcat(recombined, net_domain, sizeof(recombined)); 417 } 418 return recombined; 419 } 420 421 #ifdef INET6 422 static int 423 is_v6kernel(void) 424 { 425 int s; 426 427 s = socket(PF_INET6, SOCK_DGRAM, 0); 428 if (s < 0) 429 return 0; 430 close(s); 431 return 1; 432 } 433 #endif 434 435 static int 436 handle_license(const char *dev) 437 { 438 static struct { 439 const char *dev; 440 const char *lic; 441 } licdev[] = { 442 { "iwi", "/libdata/firmware/if_iwi/LICENSE.ipw2200-fw" }, 443 { "ipw", "/libdata/firmware/if_ipw/LICENSE" }, 444 }; 445 446 size_t i; 447 448 for (i = 0; i < __arraycount(licdev); i++) 449 if (strncmp(dev, licdev[i].dev, 3) == 0) { 450 char buf[64]; 451 int val; 452 size_t len = sizeof(int); 453 (void)snprintf(buf, sizeof(buf), "hw.%s.accept_eula", 454 licdev[i].dev); 455 if (sysctlbyname(buf, &val, &len, NULL, 0) != -1 456 && val != 0) 457 return 1; 458 msg_display(MSG_license, dev, licdev[i].lic); 459 process_menu(MENU_yesno, NULL); 460 if (yesno) { 461 val = 1; 462 if (sysctlbyname(buf, NULL, NULL, &val, 463 0) == -1) 464 return 0; 465 add_sysctl_conf("%s=1", buf); 466 return 1; 467 } else 468 return 0; 469 } 470 return 1; 471 } 472 473 /* 474 * Get the information to configure the network, configure it and 475 * make sure both the gateway and the name server are up. 476 */ 477 int 478 config_network(void) 479 { 480 char *textbuf; 481 int octet0; 482 int dhcp_config; 483 int nfs_root = 0; 484 int slip = 0; 485 int pid, status; 486 char **ap, *slcmd[10], *in_buf; 487 char buffer[STRSIZE]; 488 struct statvfs sb; 489 struct net_desc net_devs[MAX_NETS]; 490 menu_ent net_menu[5]; 491 int menu_no; 492 int num_devs; 493 int selected_net; 494 495 int i; 496 #ifdef INET6 497 int v6config = 1; 498 #endif 499 500 FILE *f; 501 time_t now; 502 503 if (network_up) 504 return (1); 505 506 num_devs = get_ifconfig_info(net_devs); 507 508 if (num_devs < 1) { 509 /* No network interfaces found! */ 510 msg_display(MSG_nonet); 511 process_menu(MENU_ok, NULL); 512 return (-1); 513 } 514 515 for (i = 0; i < num_devs; i++) { 516 net_menu[i].opt_name = net_devs[i].if_dev; 517 net_menu[i].opt_menu = OPT_NOMENU; 518 net_menu[i].opt_flags = OPT_EXIT; 519 net_menu[i].opt_action = set_menu_select; 520 } 521 again: 522 selected_net = -1; 523 menu_no = new_menu(MSG_netdevs, 524 net_menu, num_devs, -1, 4, 0, 0, 525 MC_SCROLL, 526 NULL, NULL, NULL, NULL, NULL); 527 msg_display(MSG_asknetdev, ""); 528 process_menu(menu_no, &selected_net); 529 free_menu(menu_no); 530 531 if (selected_net == -1) 532 return 0; 533 534 network_up = 1; 535 536 strncpy(net_dev, net_devs[selected_net].if_dev, STRSIZE); 537 538 if (!handle_license(net_dev)) 539 goto done; 540 541 slip = net_dev[0] == 's' && net_dev[1] == 'l' && 542 isdigit((unsigned char)net_dev[2]); 543 544 /* If root is on NFS do not reconfigure the interface. */ 545 if (statvfs("/", &sb) == 0 && strcmp(sb.f_fstypename, "nfs") == 0) { 546 nfs_root = 1; 547 dhcp_config = 0; 548 get_ifinterface_info(); 549 get_if6interface_info(); 550 get_host_info(); 551 } else if (slip) { 552 dhcp_config = 0; 553 } else { 554 /* Preload any defaults we can find */ 555 get_ifinterface_info(); 556 get_if6interface_info(); 557 get_host_info(); 558 559 /* domain and host */ 560 msg_display(MSG_netinfo); 561 562 /* ethernet medium */ 563 for (;;) { 564 msg_prompt_add(MSG_net_media, net_media, net_media, 565 sizeof net_media); 566 567 /* 568 * ifconfig does not allow media specifiers on 569 * IFM_MANUAL interfaces. Our UI gives no way 570 * to set an option back 571 * to null-string if it gets accidentally set. 572 * Check for plausible alternatives. 573 */ 574 if (strcmp(net_media, "<default>") == 0 || 575 strcmp(net_media, "default") == 0 || 576 strcmp(net_media, "<manual>") == 0 || 577 strcmp(net_media, "manual") == 0 || 578 strcmp(net_media, "<none>") == 0 || 579 strcmp(net_media, "none") == 0 || 580 strcmp(net_media, " ") == 0) { 581 *net_media = '\0'; 582 } 583 584 if (*net_media == '\0') 585 break; 586 /* 587 * We must set the media type here - to give dhcp 588 * a chance 589 */ 590 if (run_program(0, "/sbin/ifconfig %s media %s", 591 net_dev, net_media) == 0) 592 break; 593 /* Failed to set - output the supported values */ 594 if (collect(T_OUTPUT, &textbuf, "/sbin/ifconfig -m %s |" 595 "while IFS=; read line;" 596 " do [ \"$line\" = \"${line#*media}\" ] || " 597 "echo $line;" 598 " done", net_dev ) > 0) 599 msg_display(textbuf); 600 free(textbuf); 601 } 602 603 net_dhcpconf = 0; 604 /* try a dhcp configuration */ 605 dhcp_config = config_dhcp(net_dev); 606 if (dhcp_config) { 607 char *nl; 608 609 /* Get newly configured data off interface. */ 610 get_ifinterface_info(); 611 get_if6interface_info(); 612 get_host_info(); 613 614 net_dhcpconf |= DHCPCONF_IPADDR; 615 616 /* 617 * Extract default route from output of 618 * 'route -n show' 619 */ 620 if (collect(T_OUTPUT, &textbuf, 621 "/sbin/route -n show | " 622 "while read dest gateway flags;" 623 " do [ \"$dest\" = default ] && {" 624 " echo \"$gateway\"; break; };" 625 " done" ) > 0) 626 strlcpy(net_defroute, textbuf, 627 sizeof net_defroute); 628 free(textbuf); 629 if ((nl = strchr(net_defroute, '\n'))) 630 *nl = '\0'; 631 632 /* pull nameserver info out of /etc/resolv.conf */ 633 if (collect(T_OUTPUT, &textbuf, 634 "cat /etc/resolv.conf 2>/dev/null |" 635 " while read keyword address rest;" 636 " do [ \"$keyword\" = nameserver ] &&" 637 " { echo \"$address\"; break; };" 638 " done" ) > 0) 639 strlcpy(net_namesvr, textbuf, 640 sizeof net_namesvr); 641 free(textbuf); 642 if ((nl = strchr(net_namesvr, '\n'))) 643 *nl = '\0'; 644 if (net_namesvr[0] != '\0') 645 net_dhcpconf |= DHCPCONF_NAMESVR; 646 647 /* pull domain info out of /etc/resolv.conf */ 648 if (collect(T_OUTPUT, &textbuf, 649 "cat /etc/resolv.conf 2>/dev/null |" 650 " while read keyword domain rest;" 651 " do [ \"$keyword\" = domain ] &&" 652 " { echo \"$domain\"; break; };" 653 " done" ) > 0) 654 strlcpy(net_domain, textbuf, 655 sizeof net_domain); 656 free(textbuf); 657 if (net_domain[0] == '\0') { 658 /* pull domain info out of /etc/resolv.conf */ 659 if (collect(T_OUTPUT, &textbuf, 660 "cat /etc/resolv.conf 2>/dev/null |" 661 " while read keyword search rest;" 662 " do [ \"$keyword\" = search ] &&" 663 " { echo \"$search\"; break; };" 664 " done" ) > 0) 665 strlcpy(net_domain, textbuf, 666 sizeof net_domain); 667 free(textbuf); 668 } 669 if ((nl = strchr(net_domain, '\n'))) 670 *nl = '\0'; 671 if (net_domain[0] != '\0') 672 net_dhcpconf |= DHCPCONF_DOMAIN; 673 674 if (gethostname(net_host, sizeof(net_host)) == 0 && 675 net_host[0] != 0) 676 net_dhcpconf |= DHCPCONF_HOST; 677 } 678 } 679 680 if (!(net_dhcpconf & DHCPCONF_HOST)) 681 msg_prompt_add(MSG_net_host, net_host, net_host, 682 sizeof net_host); 683 684 if (!(net_dhcpconf & DHCPCONF_DOMAIN)) 685 msg_prompt_add(MSG_net_domain, net_domain, net_domain, 686 sizeof net_domain); 687 688 if (!dhcp_config) { 689 /* Manually configure IPv4 */ 690 if (!nfs_root) 691 msg_prompt_add(MSG_net_ip, net_ip, net_ip, 692 sizeof net_ip); 693 if (slip) 694 msg_prompt_add(MSG_net_srv_ip, net_srv_ip, net_srv_ip, 695 sizeof net_srv_ip); 696 else if (!nfs_root) { 697 /* We don't want netmasks for SLIP */ 698 octet0 = atoi(net_ip); 699 if (!net_mask[0]) { 700 if (0 <= octet0 && octet0 <= 127) 701 strlcpy(net_mask, "0xff000000", 702 sizeof(net_mask)); 703 else if (128 <= octet0 && octet0 <= 191) 704 strlcpy(net_mask, "0xffff0000", 705 sizeof(net_mask)); 706 else if (192 <= octet0 && octet0 <= 223) 707 strlcpy(net_mask, "0xffffff00", 708 sizeof(net_mask)); 709 } 710 msg_prompt_add(MSG_net_mask, net_mask, net_mask, 711 sizeof net_mask); 712 } 713 msg_prompt_add(MSG_net_defroute, net_defroute, net_defroute, 714 sizeof net_defroute); 715 } 716 717 if (!(net_dhcpconf & DHCPCONF_NAMESVR)) { 718 #ifdef INET6 719 if (v6config) { 720 process_menu(MENU_namesrv6, NULL); 721 if (!yesno) 722 msg_prompt_add(MSG_net_namesrv, net_namesvr, 723 net_namesvr, sizeof net_namesvr); 724 } else 725 #endif 726 msg_prompt_add(MSG_net_namesrv, net_namesvr, net_namesvr, 727 sizeof net_namesvr); 728 } 729 730 /* confirm the setting */ 731 if (slip) 732 msg_display(MSG_netok_slip, net_domain, net_host, 733 *net_namesvr == '\0' ? "<none>" : net_namesvr, 734 net_dev, 735 *net_media == '\0' ? "<default>" : net_media, 736 *net_ip == '\0' ? "<none>" : net_ip, 737 *net_srv_ip == '\0' ? "<none>" : net_srv_ip, 738 *net_mask == '\0' ? "<none>" : net_mask, 739 *net_defroute == '\0' ? "<none>" : net_defroute); 740 else 741 msg_display(MSG_netok, net_domain, net_host, 742 *net_namesvr == '\0' ? "<none>" : net_namesvr, 743 net_dev, 744 *net_media == '\0' ? "<default>" : net_media, 745 *net_ip == '\0' ? "<none>" : net_ip, 746 *net_mask == '\0' ? "<none>" : net_mask, 747 *net_defroute == '\0' ? "<none>" : net_defroute); 748 #ifdef INET6 749 msg_display_add(MSG_netokv6, 750 !is_v6kernel() ? "<not supported>" : net_ip6); 751 #endif 752 done: 753 process_menu(MENU_yesno, deconst(MSG_netok_ok)); 754 755 if (!yesno) 756 goto again; 757 758 run_program(0, "/sbin/ifconfig lo0 127.0.0.1"); 759 760 /* dhcpcd will have configured it all for us */ 761 if (dhcp_config) { 762 fflush(NULL); 763 network_up = 1; 764 return network_up; 765 } 766 767 /* 768 * we may want to perform checks against inconsistent configuration, 769 * like IPv4 DNS server without IPv4 configuration. 770 */ 771 772 /* Create /etc/resolv.conf if a nameserver was given */ 773 if (net_namesvr[0] != '\0') { 774 f = fopen("/etc/resolv.conf", "w"); 775 if (f == NULL) { 776 if (logfp) 777 (void)fprintf(logfp, 778 "%s", msg_string(MSG_resolv)); 779 (void)fprintf(stderr, "%s", msg_string(MSG_resolv)); 780 exit(1); 781 } 782 scripting_fprintf(NULL, "cat <<EOF >/etc/resolv.conf\n"); 783 time(&now); 784 /* NB: ctime() returns a string ending in '\n' */ 785 scripting_fprintf(f, ";\n; BIND data file\n; %s %s;\n", 786 "Created by NetBSD sysinst on", ctime(&now)); 787 if (net_domain[0] != '\0') 788 scripting_fprintf(f, "search %s\n", net_domain); 789 if (net_namesvr[0] != '\0') 790 scripting_fprintf(f, "nameserver %s\n", net_namesvr); 791 scripting_fprintf(NULL, "EOF\n"); 792 fflush(NULL); 793 fclose(f); 794 } 795 796 if (net_ip[0] != '\0') { 797 if (slip) { 798 /* XXX: needs 'ifconfig sl0 create' much earlier */ 799 /* Set SLIP interface UP */ 800 run_program(0, "/sbin/ifconfig %s inet %s %s up", 801 net_dev, net_ip, net_srv_ip); 802 strcpy(sl_flags, "-s 115200 -l /dev/tty00"); 803 msg_prompt_win(MSG_slattach, -1, 12, 70, 0, 804 sl_flags, sl_flags, 255); 805 806 /* XXX: wtf isn't run_program() used here? */ 807 pid = fork(); 808 if (pid == 0) { 809 strcpy(buffer, "/sbin/slattach "); 810 strcat(buffer, sl_flags); 811 in_buf = buffer; 812 813 for (ap = slcmd; (*ap = strsep(&in_buf, " ")) != NULL;) 814 if (**ap != '\0') 815 ++ap; 816 817 execvp(slcmd[0], slcmd); 818 } else 819 wait4(pid, &status, WNOHANG, 0); 820 } else if (!nfs_root) { 821 if (net_mask[0] != '\0') { 822 run_program(0, "/sbin/ifconfig %s inet %s netmask %s", 823 net_dev, net_ip, net_mask); 824 } else { 825 run_program(0, "/sbin/ifconfig %s inet %s", 826 net_dev, net_ip); 827 } 828 } 829 } 830 831 /* Set host name */ 832 if (net_host[0] != '\0') 833 sethostname(net_host, strlen(net_host)); 834 835 /* Set a default route if one was given */ 836 if (!nfs_root && net_defroute[0] != '\0') { 837 run_program(RUN_DISPLAY | RUN_PROGRESS, 838 "/sbin/route -n flush -inet"); 839 run_program(RUN_DISPLAY | RUN_PROGRESS, 840 "/sbin/route -n add default %s", net_defroute); 841 } 842 843 /* 844 * wait a couple of seconds for the interface to go live. 845 */ 846 if (!nfs_root) { 847 msg_display_add(MSG_wait_network); 848 sleep(5); 849 } 850 851 /* 852 * ping should be verbose, so users can see the cause 853 * of a network failure. 854 */ 855 856 #ifdef INET6 857 if (v6config && network_up) { 858 network_up = !run_program(RUN_DISPLAY | RUN_PROGRESS, 859 "/sbin/ping6 -v -c 3 -n -I %s ff02::2", net_dev); 860 } 861 #endif 862 863 if (net_namesvr[0] != '\0' && network_up) { 864 #ifdef INET6 865 if (strchr(net_namesvr, ':')) 866 network_up = !run_program(RUN_DISPLAY | RUN_PROGRESS, 867 "/sbin/ping6 -v -c 3 -n %s", net_namesvr); 868 else 869 #endif 870 network_up = !run_program(RUN_DISPLAY | RUN_PROGRESS, 871 "/sbin/ping -v -c 5 -w 5 -o -n %s", net_namesvr); 872 } 873 874 if (net_defroute[0] != '\0' && network_up) 875 network_up = !run_program(RUN_DISPLAY | RUN_PROGRESS, 876 "/sbin/ping -v -c 5 -w 5 -o -n %s", net_defroute); 877 fflush(NULL); 878 879 return network_up; 880 } 881 882 void 883 make_url(char *urlbuffer, struct ftpinfo *f, const char *dir) 884 { 885 char ftp_user_encoded[STRSIZE]; 886 char ftp_dir_encoded[STRSIZE]; 887 char *cp; 888 const char *dir2; 889 890 /* 891 * f->pass is quite likely to contain unsafe characters 892 * that need to be encoded in the URL (for example, 893 * "@", ":" and "/" need quoting). Let's be 894 * paranoid and also encode f->user and f->dir. (For 895 * example, f->dir could easily contain '~', which is 896 * unsafe by a strict reading of RFC 1738). 897 */ 898 if (strcmp("ftp", f->user) == 0 && f->pass[0] == 0) { 899 ftp_user_encoded[0] = 0; 900 } else { 901 cp = url_encode(ftp_user_encoded, f->user, 902 ftp_user_encoded + sizeof ftp_user_encoded - 1, 903 RFC1738_SAFE_LESS_SHELL, 0); 904 *cp++ = ':'; 905 cp = url_encode(cp, f->pass, 906 ftp_user_encoded + sizeof ftp_user_encoded - 1, 907 NULL, 0); 908 *cp++ = '@'; 909 *cp = 0; 910 } 911 cp = url_encode(ftp_dir_encoded, f->dir, 912 ftp_dir_encoded + sizeof ftp_dir_encoded - 1, 913 RFC1738_SAFE_LESS_SHELL_PLUS_SLASH, 1); 914 if (cp != ftp_dir_encoded && cp[-1] != '/') 915 *cp++ = '/'; 916 917 dir2 = dir; 918 while (*dir2 == '/') 919 ++dir2; 920 921 url_encode(cp, dir2, 922 ftp_dir_encoded + sizeof ftp_dir_encoded, 923 RFC1738_SAFE_LESS_SHELL_PLUS_SLASH, 0); 924 925 snprintf(urlbuffer, STRSIZE, "%s://%s%s/%s", f->xfer_type, 926 ftp_user_encoded, f->host, ftp_dir_encoded); 927 } 928 929 930 /* ftp_fetch() and pkgsrc_fetch() are essentially the same, with a different 931 * ftpinfo var. */ 932 static int do_ftp_fetch(const char *, struct ftpinfo *); 933 934 static int 935 ftp_fetch(const char *set_name) 936 { 937 return do_ftp_fetch(set_name, &ftp); 938 } 939 940 static int 941 pkgsrc_fetch(const char *set_name) 942 { 943 return do_ftp_fetch(set_name, &pkgsrc); 944 } 945 946 static int 947 do_ftp_fetch(const char *set_name, struct ftpinfo *f) 948 { 949 const char *ftp_opt; 950 char url[STRSIZE]; 951 int rval; 952 953 /* 954 * Invoke ftp to fetch the file. 955 */ 956 if (strcmp("ftp", f->user) == 0 && f->pass[0] == 0) { 957 /* do anon ftp */ 958 ftp_opt = "-a "; 959 } else { 960 ftp_opt = ""; 961 } 962 963 make_url(url, f, set_dir_for_set(set_name)); 964 rval = run_program(RUN_DISPLAY | RUN_PROGRESS | RUN_XFER_DIR, 965 "/usr/bin/ftp %s%s/%s%s", 966 ftp_opt, url, set_name, dist_postfix); 967 968 return rval ? SET_RETRY : SET_OK; 969 } 970 971 972 // XXX: check MSG_netnotup_continueanyway and MSG_netnotup 973 974 int 975 get_pkgsrc(void) 976 { 977 yesno = -1; 978 process_menu(MENU_pkgsrc, NULL); 979 980 if (yesno == SET_SKIP) 981 return SET_SKIP; 982 983 fetch_fn = pkgsrc_fetch; 984 snprintf(ext_dir_pkgsrc, sizeof ext_dir_pkgsrc, "%s/%s", 985 target_prefix(), xfer_dir + (*xfer_dir == '/')); 986 987 return SET_OK; 988 } 989 990 int 991 get_via_ftp(const char *xfer_type) 992 { 993 yesno = -1; 994 process_menu(MENU_ftpsource, deconst(xfer_type)); 995 996 if (yesno == SET_RETRY) 997 return SET_RETRY; 998 999 /* We'll fetch each file just before installing it */ 1000 fetch_fn = ftp_fetch; 1001 ftp.xfer_type = xfer_type; 1002 snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s", target_prefix(), 1003 xfer_dir + (*xfer_dir == '/')); 1004 snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s", target_prefix(), 1005 xfer_dir + (*xfer_dir == '/')); 1006 1007 return SET_OK; 1008 } 1009 1010 int 1011 get_via_nfs(void) 1012 { 1013 struct statvfs sb; 1014 1015 /* If root is on NFS and we have sets, skip this step. */ 1016 if (statvfs(set_dir_bin, &sb) == 0 && 1017 strcmp(sb.f_fstypename, "nfs") == 0) { 1018 strlcpy(ext_dir_bin, set_dir_bin, sizeof ext_dir_bin); 1019 strlcpy(ext_dir_src, set_dir_src, sizeof ext_dir_src); 1020 return SET_OK; 1021 } 1022 1023 /* Get server and filepath */ 1024 yesno = -1; 1025 process_menu(MENU_nfssource, NULL); 1026 1027 if (yesno == SET_RETRY) 1028 return SET_RETRY; 1029 1030 /* Mount it */ 1031 if (run_program(0, "/sbin/mount -r -o -2,-i,-r=1024 -t nfs %s:%s /mnt2", 1032 nfs_host, nfs_dir)) 1033 return SET_RETRY; 1034 1035 mnt2_mounted = 1; 1036 1037 snprintf(ext_dir_bin, sizeof ext_dir_bin, "/mnt2/%s", set_dir_bin); 1038 snprintf(ext_dir_src, sizeof ext_dir_src, "/mnt2/%s", set_dir_src); 1039 1040 /* return location, don't clean... */ 1041 return SET_OK; 1042 } 1043 1044 /* 1045 * write the new contents of /etc/hosts to the specified file 1046 */ 1047 static void 1048 write_etc_hosts(FILE *f) 1049 { 1050 scripting_fprintf(f, "#\n"); 1051 scripting_fprintf(f, "# Added by NetBSD sysinst\n"); 1052 scripting_fprintf(f, "#\n"); 1053 1054 if (net_domain[0] != '\0') 1055 scripting_fprintf(f, "127.0.0.1 localhost.%s\n", net_domain); 1056 1057 scripting_fprintf(f, "%s\t", net_ip); 1058 if (net_domain[0] != '\0') 1059 scripting_fprintf(f, "%s ", recombine_host_domain()); 1060 scripting_fprintf(f, "%s\n", net_host); 1061 } 1062 1063 /* 1064 * Write the network config info the user entered via menus into the 1065 * config files in the target disk. Be careful not to lose any 1066 * information we don't immediately add back, in case the install 1067 * target is the currently-active root. 1068 */ 1069 void 1070 mnt_net_config(void) 1071 { 1072 char ifconfig_fn[STRSIZE]; 1073 FILE *ifconf = NULL; 1074 1075 if (!network_up) 1076 return; 1077 process_menu(MENU_yesno, deconst(MSG_mntnetconfig)); 1078 if (!yesno) 1079 return; 1080 1081 /* Write hostname to /etc/rc.conf */ 1082 if ((net_dhcpconf & DHCPCONF_HOST) == 0) 1083 if (del_rc_conf("hostname") == 0) 1084 add_rc_conf("hostname=%s\n", recombine_host_domain()); 1085 1086 /* Copy resolv.conf to target. If DHCP was used to create it, 1087 * it will be replaced on next boot anyway. */ 1088 if (net_namesvr[0] != '\0') 1089 dup_file_into_target("/etc/resolv.conf"); 1090 1091 /* 1092 * bring the interface up, it will be necessary for IPv6, and 1093 * it won't make trouble with IPv4 case either 1094 */ 1095 snprintf(ifconfig_fn, sizeof ifconfig_fn, "/etc/ifconfig.%s", net_dev); 1096 ifconf = target_fopen(ifconfig_fn, "w"); 1097 if (ifconf != NULL) { 1098 scripting_fprintf(NULL, "cat <<EOF >>%s%s\n", 1099 target_prefix(), ifconfig_fn); 1100 scripting_fprintf(ifconf, "up\n"); 1101 if (*net_media != '\0') 1102 scripting_fprintf(ifconf, "media %s\n", net_media); 1103 scripting_fprintf(NULL, "EOF\n"); 1104 } 1105 1106 if ((net_dhcpconf & DHCPCONF_IPADDR) == 0) { 1107 FILE *hosts; 1108 1109 /* Write IPaddr and netmask to /etc/ifconfig.if[0-9] */ 1110 if (ifconf != NULL) { 1111 scripting_fprintf(NULL, "cat <<EOF >>%s%s\n", 1112 target_prefix(), ifconfig_fn); 1113 if (*net_media != '\0') 1114 scripting_fprintf(ifconf, 1115 "%s netmask %s media %s\n", 1116 net_ip, net_mask, net_media); 1117 else 1118 scripting_fprintf(ifconf, "%s netmask %s\n", 1119 net_ip, net_mask); 1120 scripting_fprintf(NULL, "EOF\n"); 1121 } 1122 1123 /* 1124 * Add IPaddr/hostname to /etc/hosts. 1125 * Be careful not to clobber any existing contents. 1126 * Relies on ordered search of /etc/hosts. XXX YP? 1127 */ 1128 hosts = target_fopen("/etc/hosts", "a"); 1129 if (hosts != 0) { 1130 scripting_fprintf(NULL, "cat <<EOF >>%s/etc/hosts\n", 1131 target_prefix()); 1132 write_etc_hosts(hosts); 1133 (void)fclose(hosts); 1134 scripting_fprintf(NULL, "EOF\n"); 1135 } 1136 1137 if (del_rc_conf("defaultroute") == 0) 1138 add_rc_conf("defaultroute=\"%s\"\n", net_defroute); 1139 } else { 1140 /* 1141 * Start dhcpcd quietly and in master mode, but restrict 1142 * it to our interface 1143 */ 1144 add_rc_conf("dhcpcd=YES\n"); 1145 add_rc_conf("dhcpcd_flags=\"-qM %s\"\n", net_dev); 1146 } 1147 1148 if (ifconf) 1149 fclose(ifconf); 1150 1151 fflush(NULL); 1152 } 1153 1154 int 1155 config_dhcp(char *inter) 1156 { 1157 int dhcpautoconf; 1158 1159 /* 1160 * Don't bother checking for an existing instance of dhcpcd, just 1161 * ask it to renew the lease. It will fork and daemonize if there 1162 * wasn't already an instance. 1163 */ 1164 1165 if (!file_mode_match(DHCPCD, S_IFREG)) 1166 return 0; 1167 process_menu(MENU_yesno, deconst(MSG_Perform_autoconfiguration)); 1168 if (yesno) { 1169 /* spawn off dhcpcd and wait for parent to exit */ 1170 dhcpautoconf = run_program(RUN_DISPLAY | RUN_PROGRESS, 1171 "%s -d -n %s", DHCPCD, inter); 1172 return dhcpautoconf ? 0 : 1; 1173 } 1174 return 0; 1175 } 1176
Indexes created Tue Sep 30 20:09:53 GMT 2025