net.c revision 1.38
1 /* $NetBSD: net.c,v 1.38 2022/01/10 22:14:01 nia 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 #include <net80211/ieee80211_ioctl.h> 51 52 #include <err.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <curses.h> 57 #include <time.h> 58 #include <unistd.h> 59 60 #include "defs.h" 61 #include "md.h" 62 #include "msg_defs.h" 63 #include "menu_defs.h" 64 #include "txtwalk.h" 65 66 int network_up = 0; 67 /* Access to network information */ 68 #define MAX_NETS 15 69 struct net_desc { 70 char if_dev[STRSIZE]; 71 char name[STRSIZE]; // TODO 72 }; 73 74 static char net_dev[STRSIZE]; 75 static char net_domain[STRSIZE]; 76 static char net_host[STRSIZE]; 77 static char net_ip[SSTRSIZE]; 78 static char net_srv_ip[SSTRSIZE]; 79 static char net_mask[SSTRSIZE]; 80 char net_namesvr[STRSIZE]; 81 static char net_defroute[STRSIZE]; 82 static char net_media[STRSIZE]; 83 static char net_ssid[STRSIZE]; 84 static char net_passphrase[STRSIZE]; 85 static char sl_flags[STRSIZE]; 86 static int net_dhcpconf; 87 #define DHCPCONF_IPADDR 0x01 88 #define DHCPCONF_NAMESVR 0x02 89 #define DHCPCONF_HOST 0x04 90 #define DHCPCONF_DOMAIN 0x08 91 #ifdef INET6 92 static char net_ip6[STRSIZE]; 93 #define IP6CONF_AUTOHOST 0x01 94 #endif 95 96 97 /* URL encode unsafe characters. */ 98 99 static char *url_encode (char *dst, const char *src, const char *ep, 100 const char *safe_chars, 101 int encode_leading_slash); 102 103 static void write_etc_hosts(FILE *f); 104 105 #define DHCPCD "/sbin/dhcpcd" 106 #define WPA_SUPPLICANT "/usr/sbin/wpa_supplicant" 107 #include <signal.h> 108 static int config_eth_medium(char *); 109 static int config_dhcp(char *); 110 static int config_wlan(char *); 111 112 #ifdef INET6 113 static int is_v6kernel (void); 114 #endif 115 116 /* 117 * URL encode unsafe characters. See RFC 1738. 118 * 119 * Copies src string to dst, encoding unsafe or reserved characters 120 * in %hex form as it goes, and returning a pointer to the result. 121 * The result is always a nul-terminated string even if it had to be 122 * truncated to avoid overflowing the available space. 123 * 124 * This url_encode() function does not operate on complete URLs, it 125 * operates on strings that make up parts of URLs. For example, in a 126 * URL like "ftp://username:password@host/path", the username, password, 127 * host and path should each be encoded separately before they are 128 * joined together with the punctuation characters. 129 * 130 * In most ordinary use, the path portion of a URL does not start with 131 * a slash; the slash is a separator between the host portion and the 132 * path portion, and is dealt with by software outside the url_encode() 133 * function. However, it is valid for url_encode() to be passed a 134 * string that does begin with a slash. For example, the string might 135 * represent a password, or a path part of a URL that the user really 136 * does want to begin with a slash. 137 * 138 * len is the length of the destination buffer. The result will be 139 * truncated if necessary to fit in the destination buffer. 140 * 141 * safe_chars is a string of characters that should not be encoded. If 142 * safe_chars is non-NULL, any characters in safe_chars as well as any 143 * alphanumeric characters will be copied from src to dst without 144 * encoding. Some potentially useful settings for this parameter are: 145 * 146 * NULL Everything is encoded (even alphanumerics) 147 * "" Everything except alphanumerics are encoded 148 * "/" Alphanumerics and '/' remain unencoded 149 * "$-_.+!*'()," Consistent with a strict reading of RFC 1738 150 * "$-_.+!*'(),/" As above, except '/' is not encoded 151 * "-_.+!,/" As above, except shell special characters are encoded 152 * 153 * encode_leading_slash is a flag that determines whether or not to 154 * encode a leading slash in a string. If this flag is set, and if the 155 * first character in the src string is '/', then the leading slash will 156 * be encoded (as "%2F"), even if '/' is one of the characters in the 157 * safe_chars string. Note that only the first character of the src 158 * string is affected by this flag, and that leading slashes are never 159 * deleted, but either retained unchanged or encoded. 160 * 161 * Unsafe and reserved characters are defined in RFC 1738 section 2.2. 162 * The most important parts are: 163 * 164 * The characters ";", "/", "?", ":", "@", "=" and "&" are the 165 * characters which may be reserved for special meaning within a 166 * scheme. No other characters may be reserved within a scheme. 167 * [...] 168 * 169 * Thus, only alphanumerics, the special characters "$-_.+!*'(),", 170 * and reserved characters used for their reserved purposes may be 171 * used unencoded within a URL. 172 * 173 */ 174 175 #define RFC1738_SAFE "$-_.+!*'()," 176 #define RFC1738_SAFE_LESS_SHELL "-_.+!," 177 #define RFC1738_SAFE_LESS_SHELL_PLUS_SLASH "-_.+!,/" 178 179 static char * 180 url_encode(char *dst, const char *src, const char *ep, 181 const char *safe_chars, int encode_leading_slash) 182 { 183 int ch; 184 185 ep--; 186 187 for (; dst < ep; src++) { 188 ch = *src & 0xff; 189 if (ch == 0) 190 break; 191 if (safe_chars != NULL && 192 (ch != '/' || !encode_leading_slash) && 193 (isalnum(ch) || strchr(safe_chars, ch))) { 194 *dst++ = ch; 195 } else { 196 /* encode this char */ 197 if (ep - dst < 3) 198 break; 199 snprintf(dst, ep - dst, "%%%02X", ch); 200 dst += 3; 201 } 202 encode_leading_slash = 0; 203 } 204 *dst = '\0'; 205 return dst; 206 } 207 208 static const char *ignored_if_names[] = { 209 "gre", /* net */ 210 "ipip", /* netinet */ 211 "gif", /* netinet6 */ 212 "faith", /* netinet6 */ 213 "lo", /* net */ 214 "lo0", /* net */ 215 #if 0 216 "mdecap", /* netinet -- never in IF list (?) XXX */ 217 #endif 218 "ppp", /* net */ 219 #if 0 220 "sl", /* net */ 221 #endif 222 "strip", /* net */ 223 "tun", /* net */ 224 /* XXX others? */ 225 NULL, 226 }; 227 228 static int 229 get_ifconfig_info(struct net_desc *devs) 230 { 231 char *buf_in; 232 char *buf_tmp; 233 const char **ignore; 234 char *buf; 235 char *tmp; 236 int textsize; 237 int i; 238 239 /* Get ifconfig information */ 240 textsize = collect(T_OUTPUT, &buf_in, "/sbin/ifconfig -l 2>/dev/null"); 241 if (textsize < 0) { 242 if (logfp) 243 (void)fprintf(logfp, 244 "Aborting: Could not run ifconfig.\n"); 245 (void)fprintf(stderr, "Could not run ifconfig."); 246 exit(1); 247 } 248 249 buf = malloc (STRSIZE * sizeof(char)); 250 for (i = 0, buf_tmp = buf_in; i < MAX_NETS && strlen(buf_tmp) > 0 251 && buf_tmp < buf_in + strlen(buf_in);) { 252 tmp = stpncpy(buf, buf_tmp, strcspn(buf_tmp," \n")); 253 *tmp='\0'; 254 buf_tmp += (strcspn(buf_tmp, " \n") + 1) * sizeof(char); 255 256 /* Skip ignored interfaces */ 257 for (ignore = ignored_if_names; *ignore != NULL; ignore++) { 258 size_t len = strlen(*ignore); 259 if (strncmp(buf, *ignore, len) == 0 && 260 isdigit((unsigned char)buf[len])) 261 break; 262 } 263 if (*ignore != NULL) 264 continue; 265 266 strlcpy (devs[i].if_dev, buf, STRSIZE); 267 i++; 268 } 269 if (i < MAX_NETS) 270 devs[i].if_dev[0] = 0; /* XXX ? */ 271 272 free(buf); 273 free(buf_in); 274 return i; 275 } 276 277 static int 278 do_ifreq(struct ifreq *ifr, unsigned long cmd) 279 { 280 int sock; 281 int rval; 282 283 sock = socket(PF_INET, SOCK_DGRAM, 0); 284 if (sock == -1) 285 return -1; 286 287 memset(ifr, 0, sizeof *ifr); 288 strlcpy(ifr->ifr_name, net_dev, sizeof ifr->ifr_name); 289 rval = ioctl(sock, cmd, ifr); 290 close(sock); 291 292 return rval; 293 } 294 295 static int 296 do_ifmreq(struct ifmediareq *ifmr, unsigned long cmd) 297 { 298 int sock; 299 int rval; 300 301 sock = socket(PF_INET, SOCK_DGRAM, 0); 302 if (sock == -1) 303 return -1; 304 305 memset(ifmr, 0, sizeof *ifmr); 306 strlcpy(ifmr->ifm_name, net_dev, sizeof ifmr->ifm_name); 307 rval = ioctl(sock, cmd, ifmr); 308 close(sock); 309 310 return rval; 311 } 312 313 /* Fill in defaults network values for the selected interface */ 314 static void 315 get_ifinterface_info(void) 316 { 317 struct ifreq ifr; 318 struct ifmediareq ifmr; 319 struct sockaddr_in *sa_in = (void*)&ifr.ifr_addr; 320 int modew; 321 const char *media_opt; 322 const char *sep; 323 324 if (do_ifreq(&ifr, SIOCGIFADDR) == 0 && sa_in->sin_addr.s_addr != 0) 325 strlcpy(net_ip, inet_ntoa(sa_in->sin_addr), sizeof net_ip); 326 327 if (do_ifreq(&ifr, SIOCGIFNETMASK) == 0 && sa_in->sin_addr.s_addr != 0) 328 strlcpy(net_mask, inet_ntoa(sa_in->sin_addr), sizeof net_mask); 329 330 if (do_ifmreq(&ifmr, SIOCGIFMEDIA) == 0) { 331 /* Get the name of the media word */ 332 modew = ifmr.ifm_current; 333 strlcpy(net_media, get_media_subtype_string(modew), 334 sizeof net_media); 335 /* and add any media options */ 336 sep = " mediaopt "; 337 while ((media_opt = get_media_option_string(&modew)) != NULL) { 338 strlcat(net_media, sep, sizeof net_media); 339 strlcat(net_media, media_opt, sizeof net_media); 340 sep = ","; 341 } 342 } 343 } 344 345 #ifndef INET6 346 #define get_if6interface_info() 347 #else 348 static void 349 get_if6interface_info(void) 350 { 351 char *textbuf, *t; 352 int textsize; 353 354 textsize = collect(T_OUTPUT, &textbuf, 355 "/sbin/ifconfig %s inet6 2>/dev/null", net_dev); 356 if (textsize >= 0) { 357 char *p; 358 359 (void)strtok(textbuf, "\n"); /* ignore first line */ 360 while ((t = strtok(NULL, "\n")) != NULL) { 361 if (strncmp(t, "\tinet6 ", 7) != 0) 362 continue; 363 t += 7; 364 if (strstr(t, "tentative") || strstr(t, "duplicated")) 365 continue; 366 if (strncmp(t, "fe80:", 5) == 0) 367 continue; 368 369 p = t; 370 while (*p && *p != ' ' && *p != '\n') 371 p++; 372 *p = '\0'; 373 strlcpy(net_ip6, t, sizeof(net_ip6)); 374 break; 375 } 376 } 377 free(textbuf); 378 } 379 #endif 380 381 static void 382 get_host_info(void) 383 { 384 char hostname[MAXHOSTNAMELEN + 1]; 385 char *dot; 386 387 /* Check host (and domain?) name */ 388 if (gethostname(hostname, sizeof(hostname)) == 0 && hostname[0] != 0) { 389 hostname[sizeof(hostname) - 1] = 0; 390 /* check for a . */ 391 dot = strchr(hostname, '.'); 392 if (dot == NULL) { 393 /* if not found its just a host, punt on domain */ 394 strlcpy(net_host, hostname, sizeof net_host); 395 } else { 396 /* split hostname into host/domain parts */ 397 *dot++ = 0; 398 strlcpy(net_host, hostname, sizeof net_host); 399 strlcpy(net_domain, dot, sizeof net_domain); 400 } 401 } 402 } 403 404 /* 405 * recombine name parts split in get_host_info and config_network 406 * (common code moved here from write_etc_hosts) 407 */ 408 static char * 409 recombine_host_domain(void) 410 { 411 static char recombined[MAXHOSTNAMELEN + 1]; 412 int l = strlen(net_host) - strlen(net_domain); 413 414 strlcpy(recombined, net_host, sizeof(recombined)); 415 416 if (strlen(net_domain) != 0 && (l <= 0 || 417 net_host[l - 1] != '.' || 418 strcasecmp(net_domain, net_host + l) != 0)) { 419 /* net_host isn't an FQDN. */ 420 strlcat(recombined, ".", sizeof(recombined)); 421 strlcat(recombined, net_domain, sizeof(recombined)); 422 } 423 return recombined; 424 } 425 426 #ifdef INET6 427 static int 428 is_v6kernel(void) 429 { 430 int s; 431 432 s = socket(PF_INET6, SOCK_DGRAM, 0); 433 if (s < 0) 434 return 0; 435 close(s); 436 return 1; 437 } 438 #endif 439 440 static int 441 handle_license(const char *dev) 442 { 443 static struct { 444 const char *dev; 445 const char *lic; 446 } licdev[] = { 447 { "iwi", "/libdata/firmware/if_iwi/LICENSE.ipw2200-fw" }, 448 { "ipw", "/libdata/firmware/if_ipw/LICENSE" }, 449 }; 450 451 size_t i; 452 453 for (i = 0; i < __arraycount(licdev); i++) 454 if (strncmp(dev, licdev[i].dev, 3) == 0) { 455 char buf[64]; 456 int val; 457 size_t len = sizeof(int); 458 (void)snprintf(buf, sizeof(buf), "hw.%s.accept_eula", 459 licdev[i].dev); 460 if (sysctlbyname(buf, &val, &len, NULL, 0) != -1 461 && val != 0) 462 return 1; 463 msg_fmt_display(MSG_license, "%s%s", 464 dev, licdev[i].lic); 465 if (ask_yesno(NULL)) { 466 val = 1; 467 if (sysctlbyname(buf, NULL, NULL, &val, 468 0) == -1) 469 return 0; 470 add_sysctl_conf("%s=1", buf); 471 return 1; 472 } else 473 return 0; 474 } 475 return 1; 476 } 477 478 /* 479 * Get the information to configure the network, configure it and 480 * make sure both the gateway and the name server are up. 481 */ 482 int 483 config_network(void) 484 { 485 char *textbuf; 486 int octet0; 487 int dhcp_config; 488 int nfs_root = 0; 489 int slip = 0; 490 int pid, status; 491 char **ap, *slcmd[10], *in_buf; 492 char buffer[STRSIZE]; 493 struct statvfs sb; 494 struct net_desc net_devs[MAX_NETS]; 495 menu_ent *net_menu; 496 int menu_no; 497 int num_devs; 498 int selected_net; 499 int i; 500 #ifdef INET6 501 int v6config = 1, rv; 502 #endif 503 504 FILE *f; 505 time_t now; 506 507 if (network_up) 508 return (1); 509 510 num_devs = get_ifconfig_info(net_devs); 511 512 if (num_devs < 1) { 513 /* No network interfaces found! */ 514 hit_enter_to_continue(NULL, MSG_nonet); 515 return -1; 516 } 517 518 net_menu = calloc(num_devs, sizeof(*net_menu)); 519 if (net_menu == NULL) { 520 err_msg_win(err_outofmem); 521 return -1; 522 } 523 524 for (i = 0; i < num_devs; i++) { 525 net_menu[i].opt_name = net_devs[i].if_dev; 526 net_menu[i].opt_flags = OPT_EXIT; 527 net_menu[i].opt_action = set_menu_select; 528 } 529 530 menu_no = new_menu(MSG_netdevs, 531 net_menu, num_devs, -1, 4, 0, 0, 532 MC_SCROLL, 533 NULL, NULL, NULL, NULL, MSG_cancel); 534 again: 535 selected_net = -1; 536 msg_display(MSG_asknetdev); 537 process_menu(menu_no, &selected_net); 538 539 if (selected_net == -1) { 540 free_menu(menu_no); 541 free(net_menu); 542 return 0; 543 } 544 545 network_up = 1; 546 dhcp_config = 0; 547 548 strlcpy(net_dev, net_devs[selected_net].if_dev, sizeof net_dev); 549 550 if (!handle_license(net_dev)) 551 goto done; 552 553 slip = net_dev[0] == 's' && net_dev[1] == 'l' && 554 isdigit((unsigned char)net_dev[2]); 555 556 /* If root is on NFS do not reconfigure the interface. */ 557 if (statvfs("/", &sb) == 0 && strcmp(sb.f_fstypename, "nfs") == 0) { 558 nfs_root = 1; 559 get_ifinterface_info(); 560 get_if6interface_info(); 561 get_host_info(); 562 } else if (!slip) { 563 /* Preload any defaults we can find */ 564 get_ifinterface_info(); 565 get_if6interface_info(); 566 get_host_info(); 567 568 /* domain and host */ 569 msg_display(MSG_netinfo); 570 571 if (!config_wlan(net_dev)) { 572 config_eth_medium(net_dev); 573 } 574 575 net_dhcpconf = 0; 576 /* try a dhcp configuration */ 577 dhcp_config = config_dhcp(net_dev); 578 if (dhcp_config) { 579 char *nline; 580 581 /* Get newly configured data off interface. */ 582 get_ifinterface_info(); 583 get_if6interface_info(); 584 get_host_info(); 585 586 net_dhcpconf |= DHCPCONF_IPADDR; 587 588 /* 589 * Extract default route from output of 590 * 'route -n show' 591 */ 592 if (collect(T_OUTPUT, &textbuf, 593 "/sbin/route -n show | " 594 "while read dest gateway flags;" 595 " do [ \"$dest\" = default ] && {" 596 " echo \"$gateway\"; break; };" 597 " done" ) > 0) 598 strlcpy(net_defroute, textbuf, 599 sizeof net_defroute); 600 free(textbuf); 601 if ((nline = strchr(net_defroute, '\n'))) 602 *nline = '\0'; 603 604 /* pull nameserver info out of /etc/resolv.conf */ 605 if (collect(T_OUTPUT, &textbuf, 606 "cat /etc/resolv.conf 2>/dev/null |" 607 " while read keyword address rest;" 608 " do [ \"$keyword\" = nameserver ] &&" 609 " { echo \"$address\"; break; };" 610 " done" ) > 0) 611 strlcpy(net_namesvr, textbuf, 612 sizeof net_namesvr); 613 free(textbuf); 614 if ((nline = strchr(net_namesvr, '\n'))) 615 *nline = '\0'; 616 if (net_namesvr[0] != '\0') 617 net_dhcpconf |= DHCPCONF_NAMESVR; 618 619 /* pull domain info out of /etc/resolv.conf */ 620 if (collect(T_OUTPUT, &textbuf, 621 "cat /etc/resolv.conf 2>/dev/null |" 622 " while read keyword domain rest;" 623 " do [ \"$keyword\" = domain ] &&" 624 " { echo \"$domain\"; break; };" 625 " done" ) > 0) 626 strlcpy(net_domain, textbuf, 627 sizeof net_domain); 628 free(textbuf); 629 if (net_domain[0] == '\0') { 630 /* pull domain info out of /etc/resolv.conf */ 631 if (collect(T_OUTPUT, &textbuf, 632 "cat /etc/resolv.conf 2>/dev/null |" 633 " while read keyword search rest;" 634 " do [ \"$keyword\" = search ] &&" 635 " { echo \"$search\"; break; };" 636 " done" ) > 0) 637 strlcpy(net_domain, textbuf, 638 sizeof net_domain); 639 free(textbuf); 640 } 641 if ((nline = strchr(net_domain, '\n'))) 642 *nline = '\0'; 643 if (net_domain[0] != '\0') 644 net_dhcpconf |= DHCPCONF_DOMAIN; 645 646 if (gethostname(net_host, sizeof(net_host)) == 0 && 647 net_host[0] != 0) 648 net_dhcpconf |= DHCPCONF_HOST; 649 } 650 } 651 652 if (!(net_dhcpconf & DHCPCONF_HOST)) 653 msg_prompt_add(MSG_net_host, net_host, net_host, 654 sizeof net_host); 655 656 if (!(net_dhcpconf & DHCPCONF_DOMAIN)) 657 msg_prompt_add(MSG_net_domain, net_domain, net_domain, 658 sizeof net_domain); 659 660 if (!dhcp_config) { 661 /* Manually configure IPv4 */ 662 if (!nfs_root) 663 msg_prompt_add(MSG_net_ip, net_ip, net_ip, 664 sizeof net_ip); 665 if (slip) 666 msg_prompt_add(MSG_net_srv_ip, net_srv_ip, net_srv_ip, 667 sizeof net_srv_ip); 668 else if (!nfs_root) { 669 /* We don't want netmasks for SLIP */ 670 octet0 = atoi(net_ip); 671 if (!net_mask[0]) { 672 if (0 <= octet0 && octet0 <= 127) 673 strlcpy(net_mask, "0xff000000", 674 sizeof(net_mask)); 675 else if (128 <= octet0 && octet0 <= 191) 676 strlcpy(net_mask, "0xffff0000", 677 sizeof(net_mask)); 678 else if (192 <= octet0 && octet0 <= 223) 679 strlcpy(net_mask, "0xffffff00", 680 sizeof(net_mask)); 681 } 682 msg_prompt_add(MSG_net_mask, net_mask, net_mask, 683 sizeof net_mask); 684 } 685 msg_prompt_add(MSG_net_defroute, net_defroute, net_defroute, 686 sizeof net_defroute); 687 } 688 689 if (!(net_dhcpconf & DHCPCONF_NAMESVR)) { 690 #ifdef INET6 691 if (v6config) { 692 rv = 0; 693 process_menu(MENU_namesrv6, &rv); 694 if (!rv) 695 msg_prompt_add(MSG_net_namesrv, net_namesvr, 696 net_namesvr, sizeof net_namesvr); 697 } else 698 #endif 699 msg_prompt_add(MSG_net_namesrv, net_namesvr, net_namesvr, 700 sizeof net_namesvr); 701 } 702 703 /* confirm the setting */ 704 msg_clear(); 705 if (slip) 706 msg_fmt_table_add(MSG_netok_slip, "%s%s%s%s%s%s%s%s%s", 707 net_domain, 708 net_host, 709 *net_namesvr == '\0' ? "<none>" : net_namesvr, 710 net_dev, 711 *net_media == '\0' ? "<default>" : net_media, 712 *net_ip == '\0' ? "<none>" : net_ip, 713 *net_srv_ip == '\0' ? "<none>" : net_srv_ip, 714 *net_mask == '\0' ? "<none>" : net_mask, 715 *net_defroute == '\0' ? "<none>" : net_defroute); 716 else 717 msg_fmt_table_add(MSG_netok, "%s%s%s%s%s%s%s%s", 718 net_domain, 719 net_host, 720 *net_namesvr == '\0' ? "<none>" : net_namesvr, 721 net_dev, 722 *net_media == '\0' ? "<default>" : net_media, 723 *net_ip == '\0' ? "<none>" : net_ip, 724 *net_mask == '\0' ? "<none>" : net_mask, 725 *net_defroute == '\0' ? "<none>" : net_defroute); 726 #ifdef INET6 727 msg_fmt_table_add(MSG_netokv6, "%s", 728 !is_v6kernel() ? "<not supported>" : net_ip6); 729 #endif 730 done: 731 if (!ask_yesno(MSG_netok_ok)) 732 goto again; 733 734 free_menu(menu_no); 735 free(net_menu); 736 737 run_program(0, "/sbin/ifconfig lo0 127.0.0.1"); 738 739 /* dhcpcd will have configured it all for us */ 740 if (dhcp_config) { 741 fflush(NULL); 742 network_up = 1; 743 return network_up; 744 } 745 746 /* 747 * we may want to perform checks against inconsistent configuration, 748 * like IPv4 DNS server without IPv4 configuration. 749 */ 750 751 /* Create /etc/resolv.conf if a nameserver was given */ 752 if (net_namesvr[0] != '\0') { 753 f = fopen("/etc/resolv.conf", "w"); 754 if (f == NULL) { 755 if (logfp) 756 (void)fprintf(logfp, 757 "%s", msg_string(MSG_resolv)); 758 (void)fprintf(stderr, "%s", msg_string(MSG_resolv)); 759 exit(1); 760 } 761 scripting_fprintf(NULL, "cat <<EOF >/etc/resolv.conf\n"); 762 time(&now); 763 scripting_fprintf(f, ";\n; BIND data file\n; %s %s;\n", 764 "Created by NetBSD sysinst on", safectime(&now)); 765 if (net_domain[0] != '\0') 766 scripting_fprintf(f, "search %s\n", net_domain); 767 if (net_namesvr[0] != '\0') 768 scripting_fprintf(f, "nameserver %s\n", net_namesvr); 769 scripting_fprintf(NULL, "EOF\n"); 770 fflush(NULL); 771 fclose(f); 772 } 773 774 if (net_ip[0] != '\0') { 775 if (slip) { 776 /* XXX: needs 'ifconfig sl0 create' much earlier */ 777 /* Set SLIP interface UP */ 778 run_program(0, "/sbin/ifconfig %s inet %s %s up", 779 net_dev, net_ip, net_srv_ip); 780 strcpy(sl_flags, "-s 115200 -l /dev/tty00"); 781 msg_prompt_win(MSG_slattach, -1, 12, 70, 0, 782 sl_flags, sl_flags, sizeof sl_flags); 783 784 /* XXX: wtf isn't run_program() used here? */ 785 pid = fork(); 786 if (pid == 0) { 787 strcpy(buffer, "/sbin/slattach "); 788 strcat(buffer, sl_flags); 789 in_buf = buffer; 790 791 for (ap = slcmd; (*ap = strsep(&in_buf, " ")) != NULL;) 792 if (**ap != '\0') 793 ++ap; 794 795 execvp(slcmd[0], slcmd); 796 } else 797 wait4(pid, &status, WNOHANG, 0); 798 } else if (!nfs_root) { 799 if (net_mask[0] != '\0') { 800 run_program(0, "/sbin/ifconfig %s inet %s netmask %s", 801 net_dev, net_ip, net_mask); 802 } else { 803 run_program(0, "/sbin/ifconfig %s inet %s", 804 net_dev, net_ip); 805 } 806 } 807 } 808 809 /* Set host name */ 810 if (net_host[0] != '\0') 811 sethostname(net_host, strlen(net_host)); 812 813 /* Set a default route if one was given */ 814 if (!nfs_root && net_defroute[0] != '\0') { 815 run_program(RUN_DISPLAY | RUN_PROGRESS, 816 "/sbin/route -n flush -inet"); 817 run_program(RUN_DISPLAY | RUN_PROGRESS, 818 "/sbin/route -n add default %s", net_defroute); 819 } 820 821 /* 822 * wait for addresses to become valid 823 */ 824 if (!nfs_root) { 825 msg_display_add(MSG_wait_network); 826 network_up = !run_program(RUN_DISPLAY | RUN_PROGRESS, 827 "/sbin/ifconfig -w 15 -W 5"); 828 } else { 829 /* Assume network is up. */ 830 network_up = 1; 831 } 832 833 fflush(NULL); 834 835 return network_up; 836 } 837 838 const char * 839 url_proto(unsigned int xfer) 840 { 841 switch (xfer) { 842 case XFER_FTP: return "ftp"; 843 case XFER_HTTP: return "http"; 844 } 845 846 return ""; 847 } 848 849 void 850 make_url(char *urlbuffer, struct ftpinfo *f, const char *dir) 851 { 852 char ftp_user_encoded[STRSIZE]; 853 char ftp_dir_encoded[STRSIZE]; 854 char *cp; 855 const char *dir2; 856 857 /* 858 * f->pass is quite likely to contain unsafe characters 859 * that need to be encoded in the URL (for example, 860 * "@", ":" and "/" need quoting). Let's be 861 * paranoid and also encode f->user and f->dir. (For 862 * example, f->dir could easily contain '~', which is 863 * unsafe by a strict reading of RFC 1738). 864 */ 865 if (strcmp("ftp", f->user) == 0 && f->pass[0] == 0) { 866 ftp_user_encoded[0] = 0; 867 } else { 868 cp = url_encode(ftp_user_encoded, f->user, 869 ftp_user_encoded + sizeof ftp_user_encoded - 1, 870 RFC1738_SAFE_LESS_SHELL, 0); 871 *cp++ = ':'; 872 cp = url_encode(cp, f->pass, 873 ftp_user_encoded + sizeof ftp_user_encoded - 1, 874 NULL, 0); 875 *cp++ = '@'; 876 *cp = 0; 877 } 878 cp = url_encode(ftp_dir_encoded, f->dir, 879 ftp_dir_encoded + sizeof ftp_dir_encoded - 1, 880 RFC1738_SAFE_LESS_SHELL_PLUS_SLASH, 1); 881 if (cp != ftp_dir_encoded && cp[-1] != '/') 882 *cp++ = '/'; 883 884 dir2 = dir; 885 while (*dir2 == '/') 886 ++dir2; 887 888 url_encode(cp, dir2, 889 ftp_dir_encoded + sizeof ftp_dir_encoded, 890 RFC1738_SAFE_LESS_SHELL_PLUS_SLASH, 0); 891 892 snprintf(urlbuffer, STRSIZE, "%s://%s%s/%s", url_proto(f->xfer), 893 ftp_user_encoded, f->xfer_host[f->xfer], ftp_dir_encoded); 894 } 895 896 897 /* ftp_fetch() and pkgsrc_fetch() are essentially the same, with a different 898 * ftpinfo var and pkgsrc always using .tgz suffix, while for 899 * regular sets we only use .tgz for source sets on some architectures. */ 900 static int do_ftp_fetch(const char *, bool, struct ftpinfo *); 901 902 static int 903 ftp_fetch(const char *set_name) 904 { 905 return do_ftp_fetch(set_name, use_tgz_for_set(set_name), &ftp); 906 } 907 908 static int 909 pkgsrc_fetch(const char *set_name) 910 { 911 return do_ftp_fetch(set_name, true, &pkgsrc); 912 } 913 914 static int 915 do_ftp_fetch(const char *set_name, bool force_tgz, struct ftpinfo *f) 916 { 917 const char *ftp_opt; 918 char url[STRSIZE]; 919 int rval; 920 921 /* 922 * Invoke ftp to fetch the file. 923 */ 924 if (strcmp("ftp", f->user) == 0 && f->pass[0] == 0) { 925 /* do anon ftp */ 926 ftp_opt = "-a "; 927 } else { 928 ftp_opt = ""; 929 } 930 931 make_url(url, f, set_dir_for_set(set_name)); 932 rval = run_program(RUN_DISPLAY | RUN_PROGRESS | RUN_XFER_DIR, 933 "/usr/bin/ftp %s%s/%s%s", 934 ftp_opt, url, set_name, 935 force_tgz ? dist_tgz_postfix : dist_postfix); 936 937 return rval ? SET_RETRY : SET_OK; 938 } 939 940 941 // XXX: check MSG_netnotup_continueanyway and MSG_netnotup 942 943 int 944 get_pkgsrc(void) 945 { 946 int rv = -1; 947 948 process_menu(MENU_pkgsrc, &rv); 949 950 if (rv == SET_SKIP) 951 return SET_SKIP; 952 953 fetch_fn = pkgsrc_fetch; 954 snprintf(ext_dir_pkgsrc, sizeof ext_dir_pkgsrc, "%s/%s", 955 target_prefix(), xfer_dir + (*xfer_dir == '/')); 956 957 return SET_OK; 958 } 959 960 int 961 get_via_ftp(unsigned int xfer) 962 { 963 arg_rv arg; 964 965 arg.rv = -1; 966 arg.arg = (void*)(uintptr_t)(xfer); 967 process_menu(MENU_ftpsource, &arg); 968 969 if (arg.rv == SET_RETRY) 970 return SET_RETRY; 971 972 /* We'll fetch each file just before installing it */ 973 fetch_fn = ftp_fetch; 974 ftp.xfer = xfer; 975 snprintf(ext_dir_bin, sizeof ext_dir_bin, "%s/%s", target_prefix(), 976 xfer_dir + (*xfer_dir == '/')); 977 snprintf(ext_dir_src, sizeof ext_dir_src, "%s/%s", target_prefix(), 978 xfer_dir + (*xfer_dir == '/')); 979 980 return SET_OK; 981 } 982 983 int 984 get_via_nfs(void) 985 { 986 struct statvfs sb; 987 int rv; 988 989 /* If root is on NFS and we have sets, skip this step. */ 990 if (statvfs(set_dir_bin, &sb) == 0 && 991 strcmp(sb.f_fstypename, "nfs") == 0) { 992 strlcpy(ext_dir_bin, set_dir_bin, sizeof ext_dir_bin); 993 strlcpy(ext_dir_src, set_dir_src, sizeof ext_dir_src); 994 return SET_OK; 995 } 996 997 /* Get server and filepath */ 998 rv = -1; 999 process_menu(MENU_nfssource, &rv); 1000 1001 if (rv == SET_RETRY) 1002 return SET_RETRY; 1003 1004 /* Mount it */ 1005 if (run_program(0, "/sbin/mount -r -o -2,-i,-r=1024 -t nfs %s:%s /mnt2", 1006 nfs_host, nfs_dir)) 1007 return SET_RETRY; 1008 1009 mnt2_mounted = 1; 1010 1011 snprintf(ext_dir_bin, sizeof ext_dir_bin, "/mnt2/%s", set_dir_bin); 1012 snprintf(ext_dir_src, sizeof ext_dir_src, "/mnt2/%s", set_dir_src); 1013 1014 /* return location, don't clean... */ 1015 return SET_OK; 1016 } 1017 1018 /* 1019 * write the new contents of /etc/hosts to the specified file 1020 */ 1021 static void 1022 write_etc_hosts(FILE *f) 1023 { 1024 scripting_fprintf(f, "#\n"); 1025 scripting_fprintf(f, "# Added by NetBSD sysinst\n"); 1026 scripting_fprintf(f, "#\n"); 1027 1028 if (net_domain[0] != '\0') 1029 scripting_fprintf(f, "127.0.0.1 localhost.%s\n", net_domain); 1030 1031 scripting_fprintf(f, "%s\t", net_ip); 1032 if (net_domain[0] != '\0') 1033 scripting_fprintf(f, "%s ", recombine_host_domain()); 1034 scripting_fprintf(f, "%s\n", net_host); 1035 } 1036 1037 /* 1038 * Write the network config info the user entered via menus into the 1039 * config files in the target disk. Be careful not to lose any 1040 * information we don't immediately add back, in case the install 1041 * target is the currently-active root. 1042 */ 1043 void 1044 mnt_net_config(void) 1045 { 1046 char ifconfig_fn[STRSIZE]; 1047 FILE *ifconf = NULL; 1048 1049 if (!network_up) 1050 return; 1051 if (!ask_yesno(MSG_mntnetconfig)) 1052 return; 1053 1054 /* Write hostname to /etc/rc.conf */ 1055 if ((net_dhcpconf & DHCPCONF_HOST) == 0) 1056 if (del_rc_conf("hostname") == 0) 1057 add_rc_conf("hostname=%s\n", recombine_host_domain()); 1058 1059 /* Copy resolv.conf to target. If DHCP was used to create it, 1060 * it will be replaced on next boot anyway. */ 1061 if (net_namesvr[0] != '\0') 1062 dup_file_into_target("/etc/resolv.conf"); 1063 1064 /* Copy wpa_supplicant.conf to target. */ 1065 if (net_ssid[0] != '\0') 1066 dup_file_into_target("/etc/wpa_supplicant.conf"); 1067 1068 /* 1069 * bring the interface up, it will be necessary for IPv6, and 1070 * it won't make trouble with IPv4 case either 1071 */ 1072 snprintf(ifconfig_fn, sizeof ifconfig_fn, "/etc/ifconfig.%s", net_dev); 1073 ifconf = target_fopen(ifconfig_fn, "w"); 1074 if (ifconf != NULL) { 1075 scripting_fprintf(NULL, "cat <<EOF >>%s%s\n", 1076 target_prefix(), ifconfig_fn); 1077 scripting_fprintf(ifconf, "up\n"); 1078 if (*net_media != '\0') 1079 scripting_fprintf(ifconf, "media %s\n", net_media); 1080 scripting_fprintf(NULL, "EOF\n"); 1081 } 1082 1083 if ((net_dhcpconf & DHCPCONF_IPADDR) == 0) { 1084 FILE *hosts; 1085 1086 /* Write IPaddr and netmask to /etc/ifconfig.if[0-9] */ 1087 if (ifconf != NULL) { 1088 scripting_fprintf(NULL, "cat <<EOF >>%s%s\n", 1089 target_prefix(), ifconfig_fn); 1090 if (*net_media != '\0') 1091 scripting_fprintf(ifconf, 1092 "%s netmask %s media %s\n", 1093 net_ip, net_mask, net_media); 1094 else 1095 scripting_fprintf(ifconf, "%s netmask %s\n", 1096 net_ip, net_mask); 1097 scripting_fprintf(NULL, "EOF\n"); 1098 } 1099 1100 /* 1101 * Add IPaddr/hostname to /etc/hosts. 1102 * Be careful not to clobber any existing contents. 1103 * Relies on ordered search of /etc/hosts. XXX YP? 1104 */ 1105 hosts = target_fopen("/etc/hosts", "a"); 1106 if (hosts != 0) { 1107 scripting_fprintf(NULL, "cat <<EOF >>%s/etc/hosts\n", 1108 target_prefix()); 1109 write_etc_hosts(hosts); 1110 (void)fclose(hosts); 1111 scripting_fprintf(NULL, "EOF\n"); 1112 } 1113 1114 if (del_rc_conf("defaultroute") == 0) 1115 add_rc_conf("defaultroute=\"%s\"\n", net_defroute); 1116 } else { 1117 /* 1118 * Start dhcpcd quietly and in master mode, but restrict 1119 * it to our interface 1120 */ 1121 add_rc_conf("dhcpcd=YES\n"); 1122 add_rc_conf("dhcpcd_flags=\"-qM %s\"\n", net_dev); 1123 } 1124 1125 if (net_ssid[0] != '\0') { 1126 add_rc_conf("wpa_supplicant=YES\n"); 1127 add_rc_conf("wpa_supplicant_flags=\"-B -s -i %s -D bsd -c /etc/wpa_supplicant.conf\"\n", net_dev); 1128 } 1129 1130 if (ifconf) 1131 fclose(ifconf); 1132 1133 fflush(NULL); 1134 } 1135 1136 int 1137 config_wlan(char *inter) 1138 { 1139 FILE *wpa_conf = NULL; 1140 char wpa_cmd[256]; 1141 int sock; 1142 struct ifreq ifr = {0}; 1143 struct ieee80211_nwid nwid = {0}; 1144 1145 strlcpy(ifr.ifr_name, inter, sizeof(ifr.ifr_name)); 1146 ifr.ifr_data = &nwid; 1147 1148 sock = socket(PF_INET, SOCK_DGRAM, 0); 1149 if (sock == -1) 1150 return 0; 1151 1152 /* skip non-WLAN devices */ 1153 if (ioctl(sock, SIOCG80211NWID, &ifr) == -1) { 1154 close(sock); 1155 return 0; 1156 } 1157 close(sock); 1158 1159 if (!file_mode_match(WPA_SUPPLICANT, S_IFREG)) 1160 return 0; 1161 1162 msg_prompt_add(MSG_net_ssid, net_ssid, net_ssid, 1163 sizeof net_ssid); 1164 if (net_ssid[0] == '\0') 1165 return 0; 1166 1167 msg_prompt_noecho(MSG_net_passphrase, net_passphrase, net_passphrase, 1168 sizeof net_passphrase); 1169 1170 wpa_conf = fopen("/etc/wpa_supplicant.conf", "a"); 1171 if (wpa_conf == NULL) 1172 return 0; 1173 1174 scripting_fprintf(NULL, 1175 "cat <<EOF >>%s/etc/wpa_supplicant.conf\n", 1176 target_prefix()); 1177 scripting_fprintf(wpa_conf, "\n#\n"); 1178 scripting_fprintf(wpa_conf, "# Added by NetBSD sysinst\n"); 1179 scripting_fprintf(wpa_conf, "#\n"); 1180 scripting_fprintf(wpa_conf, "network={\n"); 1181 scripting_fprintf(wpa_conf, 1182 "\tssid=\"%s\"\n", net_ssid); 1183 if (net_passphrase[0] != '\0') { 1184 scripting_fprintf(wpa_conf, "\tpsk=\"%s\"\n", 1185 net_passphrase); 1186 } else { 1187 scripting_fprintf(wpa_conf, "\tkey_mgmt=NONE\n"); 1188 } 1189 scripting_fprintf(wpa_conf, "}\n"); 1190 (void)fclose(wpa_conf); 1191 scripting_fprintf(NULL, "EOF\n"); 1192 1193 if (run_program(RUN_DISPLAY | RUN_PROGRESS, 1194 "/sbin/ifconfig %s up", inter) != 0) 1195 return 0; 1196 1197 /* 1198 * have to use system() here to avoid the server process dying 1199 */ 1200 if (snprintf(wpa_cmd, sizeof(wpa_cmd), 1201 WPA_SUPPLICANT 1202 " -B -s -i %s -D bsd -c /etc/wpa_supplicant.conf", inter) < 0) 1203 return 0; 1204 (void)do_system(wpa_cmd); 1205 1206 return 1; 1207 } 1208 1209 int 1210 config_dhcp(char *inter) 1211 { 1212 int dhcpautoconf; 1213 1214 /* 1215 * Don't bother checking for an existing instance of dhcpcd, just 1216 * ask it to renew the lease. It will fork and daemonize if there 1217 * wasn't already an instance. 1218 */ 1219 1220 if (!file_mode_match(DHCPCD, S_IFREG)) 1221 return 0; 1222 if (ask_yesno(MSG_Perform_autoconfiguration)) { 1223 /* spawn off dhcpcd and wait for parent to exit */ 1224 dhcpautoconf = run_program(RUN_DISPLAY | RUN_PROGRESS, 1225 "%s -d -n %s", DHCPCD, inter); 1226 return dhcpautoconf ? 0 : 1; 1227 } 1228 return 0; 1229 } 1230 1231 1232 int 1233 config_eth_medium(char *inter) 1234 { 1235 char *textbuf = NULL; 1236 1237 for (;;) { 1238 msg_prompt_add(MSG_net_media, net_media, net_media, 1239 sizeof net_media); 1240 1241 /* 1242 * ifconfig does not allow media specifiers on 1243 * IFM_MANUAL interfaces. Our UI gives no way 1244 * to set an option back 1245 * to null-string if it gets accidentally set. 1246 * Check for plausible alternatives. 1247 */ 1248 if (strcmp(net_media, "<default>") == 0 || 1249 strcmp(net_media, "default") == 0 || 1250 strcmp(net_media, "<manual>") == 0 || 1251 strcmp(net_media, "manual") == 0 || 1252 strcmp(net_media, "<none>") == 0 || 1253 strcmp(net_media, "none") == 0 || 1254 strcmp(net_media, " ") == 0) { 1255 *net_media = '\0'; 1256 } 1257 1258 if (*net_media == '\0') 1259 break; 1260 /* 1261 * We must set the media type here - to give dhcp 1262 * a chance 1263 */ 1264 if (run_program(0, "/sbin/ifconfig %s media %s", 1265 net_dev, net_media) == 0) 1266 break; 1267 /* Failed to set - output the supported values */ 1268 if (collect(T_OUTPUT, &textbuf, "/sbin/ifconfig -m %s |" 1269 "while IFS=; read line;" 1270 " do [ \"$line\" = \"${line#*media}\" ] || " 1271 "echo $line;" 1272 " done", net_dev ) > 0) 1273 msg_display(textbuf); 1274 free(textbuf); 1275 } 1276 return 0; 1277 } 1278
Indexes created Tue Sep 30 20:09:53 GMT 2025