common/cmd_net.c

   1 /*
   2  * (C) Copyright 2000
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 /*
  25  * Boot support
  26  */
  27 #include <common.h>
  28 #include <command.h>
  29 #include <net.h>
  30
  31 extern int do_bootm (cmd_tbl_t *, int, int, char * const []);
  32
  33 static int netboot_common (proto_t, cmd_tbl_t *, int , char * const []);
  34
  35 int do_bootp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  36 {
  37         return netboot_common (BOOTP, cmdtp, argc, argv);
  38 }
  39
  40 U_BOOT_CMD(
  41         bootp,  3,      1,      do_bootp,
  42         "boot image via network using BOOTP/TFTP protocol",
  43         "[loadAddress] [[hostIPaddr:]bootfilename]"
  44 );
  45
  46 int do_tftpb (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  47 {
  48         return netboot_common (TFTP, cmdtp, argc, argv);
  49 }
  50
  51 U_BOOT_CMD(
  52         tftpboot,       3,      1,      do_tftpb,
  53         "boot image via network using TFTP protocol",
  54         "[loadAddress] [[hostIPaddr:]bootfilename]"
  55 );
  56
  57 #ifdef CONFIG_CMD_RARP
  58 int do_rarpb (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  59 {
  60         return netboot_common (RARP, cmdtp, argc, argv);
  61 }
  62
  63 U_BOOT_CMD(
  64         rarpboot,       3,      1,      do_rarpb,
  65         "boot image via network using RARP/TFTP protocol",
  66         "[loadAddress] [[hostIPaddr:]bootfilename]"
  67 );
  68 #endif
  69
  70 #if defined(CONFIG_CMD_DHCP)
  71 int do_dhcp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  72 {
  73         return netboot_common(DHCP, cmdtp, argc, argv);
  74 }
  75
  76 U_BOOT_CMD(
  77         dhcp,   3,      1,      do_dhcp,
  78         "boot image via network using DHCP/TFTP protocol",
  79         "[loadAddress] [[hostIPaddr:]bootfilename]"
  80 );
  81 #endif
  82
  83 #if defined(CONFIG_CMD_NFS)
  84 int do_nfs (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  85 {
  86         return netboot_common(NFS, cmdtp, argc, argv);
  87 }
  88
  89 U_BOOT_CMD(
  90         nfs,    3,      1,      do_nfs,
  91         "boot image via network using NFS protocol",
  92         "[loadAddress] [[hostIPaddr:]bootfilename]"
  93 );
  94 #endif
  95
  96 static void netboot_update_env (void)
  97 {
  98         char tmp[22];
  99
 100         if (NetOurGatewayIP) {
 101                 ip_to_string (NetOurGatewayIP, tmp);
 102                 setenv ("gatewayip", tmp);
 103         }
 104
 105         if (NetOurSubnetMask) {
 106                 ip_to_string (NetOurSubnetMask, tmp);
 107                 setenv ("netmask", tmp);
 108         }
 109
 110         if (NetOurHostName[0])
 111                 setenv ("hostname", NetOurHostName);
 112
 113         if (NetOurRootPath[0])
 114                 setenv ("rootpath", NetOurRootPath);
 115
 116         if (NetOurIP) {
 117                 ip_to_string (NetOurIP, tmp);
 118                 setenv ("ipaddr", tmp);
 119         }
 120
 121         if (NetServerIP) {
 122                 ip_to_string (NetServerIP, tmp);
 123                 setenv ("serverip", tmp);
 124         }
 125
 126         if (NetOurDNSIP) {
 127                 ip_to_string (NetOurDNSIP, tmp);
 128                 setenv ("dnsip", tmp);
 129         }
 130 #if defined(CONFIG_BOOTP_DNS2)
 131         if (NetOurDNS2IP) {
 132                 ip_to_string (NetOurDNS2IP, tmp);
 133                 setenv ("dnsip2", tmp);
 134         }
 135 #endif
 136         if (NetOurNISDomain[0])
 137                 setenv ("domain", NetOurNISDomain);
 138
 139 #if defined(CONFIG_CMD_SNTP) \
 140     && defined(CONFIG_BOOTP_TIMEOFFSET)
 141         if (NetTimeOffset) {
 142                 sprintf (tmp, "%d", NetTimeOffset);
 143                 setenv ("timeoffset", tmp);
 144         }
 145 #endif
 146 #if defined(CONFIG_CMD_SNTP) \
 147     && defined(CONFIG_BOOTP_NTPSERVER)
 148         if (NetNtpServerIP) {
 149                 ip_to_string (NetNtpServerIP, tmp);
 150                 setenv ("ntpserverip", tmp);
 151         }
 152 #endif
 153 }
 154
 155 static int
 156 netboot_common (proto_t proto, cmd_tbl_t *cmdtp, int argc, char * const argv[])
 157 {
 158         char *s;
 159         char *end;
 160         int   rcode = 0;
 161         int   size;
 162         ulong addr;
 163
 164         /* pre-set load_addr */
 165         if ((s = getenv("loadaddr")) != NULL) {
 166                 load_addr = simple_strtoul(s, NULL, 16);
 167         }
 168
 169         switch (argc) {
 170         case 1:
 171                 break;
 172
 173         case 2: /*
 174                  * Only one arg - accept two forms:
 175                  * Just load address, or just boot file name. The latter
 176                  * form must be written in a format which can not be
 177                  * mis-interpreted as a valid number.
 178                  */
 179                 addr = simple_strtoul(argv[1], &end, 16);
 180                 if (end == (argv[1] + strlen(argv[1])))
 181                         load_addr = addr;
 182                 else
 183                         copy_filename(BootFile, argv[1], sizeof(BootFile));
 184                 break;
 185
 186         case 3: load_addr = simple_strtoul(argv[1], NULL, 16);
 187                 copy_filename (BootFile, argv[2], sizeof(BootFile));
 188
 189                 break;
 190
 191         default:
 192                 show_boot_progress (-80);
 193                 return cmd_usage(cmdtp);
 194         }
 195
 196         show_boot_progress (80);
 197         if ((size = NetLoop(proto)) < 0) {
 198                 show_boot_progress (-81);
 199                 return 1;
 200         }
 201
 202         show_boot_progress (81);
 203         /* NetLoop ok, update environment */
 204         netboot_update_env();
 205
 206         /* done if no file was loaded (no errors though) */
 207         if (size == 0) {
 208                 show_boot_progress (-82);
 209                 return 0;
 210         }
 211
 212         /* flush cache */
 213         flush_cache(load_addr, size);
 214
 215         /* Loading ok, check if we should attempt an auto-start */
 216         if (((s = getenv("autostart")) != NULL) && (strcmp(s,"yes") == 0)) {
 217                 char *local_args[2];
 218                 local_args[0] = argv[0];
 219                 local_args[1] = NULL;
 220
 221                 printf ("Automatic boot of image at addr 0x%08lX ...\n",
 222                         load_addr);
 223                 show_boot_progress (82);
 224                 rcode = do_bootm (cmdtp, 0, 1, local_args);
 225         }
 226
 227         if (rcode < 0)
 228                 show_boot_progress (-83);
 229         else
 230                 show_boot_progress (84);
 231         return rcode;
 232 }
 233
 234 #if defined(CONFIG_CMD_PING)
 235 int do_ping (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 236 {
 237         if (argc < 2)
 238                 return -1;
 239
 240         NetPingIP = string_to_ip(argv[1]);
 241         if (NetPingIP == 0)
 242                 return cmd_usage(cmdtp);
 243
 244         if (NetLoop(PING) < 0) {
 245                 printf("ping failed; host %s is not alive\n", argv[1]);
 246                 return 1;
 247         }
 248
 249         printf("host %s is alive\n", argv[1]);
 250
 251         return 0;
 252 }
 253
 254 U_BOOT_CMD(
 255         ping,   2,      1,      do_ping,
 256         "send ICMP ECHO_REQUEST to network host",
 257         "pingAddress"
 258 );
 259 #endif
 260
 261 #if defined(CONFIG_CMD_CDP)
 262
 263 static void cdp_update_env(void)
 264 {
 265         char tmp[16];
 266
 267         if (CDPApplianceVLAN != htons(-1)) {
 268                 printf("CDP offered appliance VLAN %d\n", ntohs(CDPApplianceVLAN));
 269                 VLAN_to_string(CDPApplianceVLAN, tmp);
 270                 setenv("vlan", tmp);
 271                 NetOurVLAN = CDPApplianceVLAN;
 272         }
 273
 274         if (CDPNativeVLAN != htons(-1)) {
 275                 printf("CDP offered native VLAN %d\n", ntohs(CDPNativeVLAN));
 276                 VLAN_to_string(CDPNativeVLAN, tmp);
 277                 setenv("nvlan", tmp);
 278                 NetOurNativeVLAN = CDPNativeVLAN;
 279         }
 280
 281 }
 282
 283 int do_cdp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 284 {
 285         int r;
 286
 287         r = NetLoop(CDP);
 288         if (r < 0) {
 289                 printf("cdp failed; perhaps not a CISCO switch?\n");
 290                 return 1;
 291         }
 292
 293         cdp_update_env();
 294
 295         return 0;
 296 }
 297
 298 U_BOOT_CMD(
 299         cdp,    1,      1,      do_cdp,
 300         "Perform CDP network configuration",
 301 );
 302 #endif
 303
 304 #if defined(CONFIG_CMD_SNTP)
 305 int do_sntp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 306 {
 307         char *toff;
 308
 309         if (argc < 2) {
 310                 NetNtpServerIP = getenv_IPaddr ("ntpserverip");
 311                 if (NetNtpServerIP == 0) {
 312                         printf ("ntpserverip not set\n");
 313                         return (1);
 314                 }
 315         } else {
 316                 NetNtpServerIP = string_to_ip(argv[1]);
 317                 if (NetNtpServerIP == 0) {
 318                         printf ("Bad NTP server IP address\n");
 319                         return (1);
 320                 }
 321         }
 322
 323         toff = getenv ("timeoffset");
 324         if (toff == NULL) NetTimeOffset = 0;
 325         else NetTimeOffset = simple_strtol (toff, NULL, 10);
 326
 327         if (NetLoop(SNTP) < 0) {
 328                 printf("SNTP failed: host %s not responding\n", argv[1]);
 329                 return 1;
 330         }
 331
 332         return 0;
 333 }
 334
 335 U_BOOT_CMD(
 336         sntp,   2,      1,      do_sntp,
 337         "synchronize RTC via network",
 338         "[NTP server IP]\n"
 339 );
 340 #endif
 341
 342 #if defined(CONFIG_CMD_DNS)
 343 int do_dns(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 344 {
 345         if (argc == 1)
 346                 return cmd_usage(cmdtp);
 347
 348         /*
 349          * We should check for a valid hostname:
 350          * - Each label must be between 1 and 63 characters long
 351          * - the entire hostname has a maximum of 255 characters
 352          * - only the ASCII letters 'a' through 'z' (case-insensitive),
 353          *   the digits '0' through '9', and the hyphen
 354          * - cannot begin or end with a hyphen
 355          * - no other symbols, punctuation characters, or blank spaces are
 356          *   permitted
 357          * but hey - this is a minimalist implmentation, so only check length
 358          * and let the name server deal with things.
 359          */
 360         if (strlen(argv[1]) >= 255) {
 361                 printf("dns error: hostname too long\n");
 362                 return 1;
 363         }
 364
 365         NetDNSResolve = argv[1];
 366
 367         if (argc == 3)
 368                 NetDNSenvvar = argv[2];
 369         else
 370                 NetDNSenvvar = NULL;
 371
 372         if (NetLoop(DNS) < 0) {
 373                 printf("dns lookup of %s failed, check setup\n", argv[1]);
 374                 return 1;
 375         }
 376
 377         return 0;
 378 }
 379
 380 U_BOOT_CMD(
 381         dns,    3,      1,      do_dns,
 382         "lookup the IP of a hostname",
 383         "hostname [envvar]"
 384 );
 385
 386 #endif  /* CONFIG_CMD_DNS */