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 #if (CONFIG_COMMANDS & CFG_CMD_NET)
  32
  33
  34 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
  35
  36 static int netboot_common (int, cmd_tbl_t *, int , char *[]);
  37
  38 int do_bootp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  39 {
  40         return netboot_common (BOOTP, cmdtp, argc, argv);
  41 }
  42
  43 U_BOOT_CMD(
  44         bootp,  3,      1,      do_bootp,
  45         "bootp\t- boot image via network using BootP/TFTP protocol\n",
  46         "[loadAddress] [bootfilename]\n"
  47 );
  48
  49 int do_tftpb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  50 {
  51         return netboot_common (TFTP, cmdtp, argc, argv);
  52 }
  53
  54 U_BOOT_CMD(
  55         tftpboot,       3,      1,      do_tftpb,
  56         "tftpboot- boot image via network using TFTP protocol\n",
  57         "[loadAddress] [bootfilename]\n"
  58 );
  59
  60 int do_rarpb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  61 {
  62         return netboot_common (RARP, cmdtp, argc, argv);
  63 }
  64
  65 U_BOOT_CMD(
  66         rarpboot,       3,      1,      do_rarpb,
  67         "rarpboot- boot image via network using RARP/TFTP protocol\n",
  68         "[loadAddress] [bootfilename]\n"
  69 );
  70
  71 #if (CONFIG_COMMANDS & CFG_CMD_DHCP)
  72 int do_dhcp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  73 {
  74         return netboot_common(DHCP, cmdtp, argc, argv);
  75 }
  76
  77 U_BOOT_CMD(
  78         dhcp,   3,      1,      do_dhcp,
  79         "dhcp\t- invoke DHCP client to obtain IP/boot params\n",
  80         "\n"
  81 );
  82 #endif  /* CFG_CMD_DHCP */
  83
  84 #if (CONFIG_COMMANDS & CFG_CMD_NFS)
  85 int do_nfs (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  86 {
  87         return netboot_common(NFS, cmdtp, argc, argv);
  88 }
  89
  90 U_BOOT_CMD(
  91         nfs,    3,      1,      do_nfs,
  92         "nfs\t- boot image via network using NFS protocol\n",
  93         "[loadAddress] [host ip addr:bootfilename]\n"
  94 );
  95 #endif  /* CFG_CMD_NFS */
  96
  97 static void netboot_update_env (void)
  98 {
  99         char tmp[22];
 100
 101         if (NetOurGatewayIP) {
 102                 ip_to_string (NetOurGatewayIP, tmp);
 103                 setenv ("gatewayip", tmp);
 104         }
 105
 106         if (NetOurSubnetMask) {
 107                 ip_to_string (NetOurSubnetMask, tmp);
 108                 setenv ("netmask", tmp);
 109         }
 110
 111         if (NetOurHostName[0])
 112                 setenv ("hostname", NetOurHostName);
 113
 114         if (NetOurRootPath[0])
 115                 setenv ("rootpath", NetOurRootPath);
 116
 117         if (NetOurIP) {
 118                 ip_to_string (NetOurIP, tmp);
 119                 setenv ("ipaddr", tmp);
 120         }
 121
 122         if (NetServerIP) {
 123                 ip_to_string (NetServerIP, tmp);
 124                 setenv ("serverip", tmp);
 125         }
 126
 127         if (NetOurDNSIP) {
 128                 ip_to_string (NetOurDNSIP, tmp);
 129                 setenv ("dnsip", tmp);
 130         }
 131 #if (CONFIG_BOOTP_MASK & CONFIG_BOOTP_DNS2)
 132         if (NetOurDNS2IP) {
 133                 ip_to_string (NetOurDNS2IP, tmp);
 134                 setenv ("dnsip2", tmp);
 135         }
 136 #endif
 137         if (NetOurNISDomain[0])
 138                 setenv ("domain", NetOurNISDomain);
 139 }
 140
 141 static int
 142 netboot_common (int proto, cmd_tbl_t *cmdtp, int argc, char *argv[])
 143 {
 144         char *s;
 145         int   rcode = 0;
 146         int   size;
 147
 148         /* pre-set load_addr */
 149         if ((s = getenv("loadaddr")) != NULL) {
 150                 load_addr = simple_strtoul(s, NULL, 16);
 151         }
 152
 153         switch (argc) {
 154         case 1:
 155                 break;
 156
 157         case 2: /* only one arg - accept two forms:
 158                  * just load address, or just boot file name.
 159                  * The latter form must be written "filename" here.
 160                  */
 161                 if (argv[1][0] == '"') {        /* just boot filename */
 162                         copy_filename (BootFile, argv[1], sizeof(BootFile));
 163                 } else {                        /* load address */
 164                         load_addr = simple_strtoul(argv[1], NULL, 16);
 165                 }
 166                 break;
 167
 168         case 3: load_addr = simple_strtoul(argv[1], NULL, 16);
 169                 copy_filename (BootFile, argv[2], sizeof(BootFile));
 170
 171                 break;
 172
 173         default: printf ("Usage:\n%s\n", cmdtp->usage);
 174                 return 1;
 175         }
 176
 177         if ((size = NetLoop(proto)) < 0)
 178                 return 1;
 179
 180         /* NetLoop ok, update environment */
 181         netboot_update_env();
 182
 183         /* done if no file was loaded (no errors though) */
 184         if (size == 0)
 185                 return 0;
 186
 187         /* flush cache */
 188         flush_cache(load_addr, size);
 189
 190         /* Loading ok, check if we should attempt an auto-start */
 191         if (((s = getenv("autostart")) != NULL) && (strcmp(s,"yes") == 0)) {
 192                 char *local_args[2];
 193                 local_args[0] = argv[0];
 194                 local_args[1] = NULL;
 195
 196                 printf ("Automatic boot of image at addr 0x%08lX ...\n",
 197                         load_addr);
 198                 rcode = do_bootm (cmdtp, 0, 1, local_args);
 199         }
 200
 201 #ifdef CONFIG_AUTOSCRIPT
 202         if (((s = getenv("autoscript")) != NULL) && (strcmp(s,"yes") == 0)) {
 203                 printf("Running autoscript at addr 0x%08lX ...\n", load_addr);
 204                 rcode = autoscript (load_addr);
 205         }
 206 #endif
 207         return rcode;
 208 }
 209
 210 #if (CONFIG_COMMANDS & CFG_CMD_PING)
 211 int do_ping (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 212 {
 213         if (argc < 2)
 214                 return -1;
 215
 216         NetPingIP = string_to_ip(argv[1]);
 217         if (NetPingIP == 0) {
 218                 printf ("Usage:\n%s\n", cmdtp->usage);
 219                 return -1;
 220         }
 221
 222         if (NetLoop(PING) < 0) {
 223                 printf("ping failed; host %s is not alive\n", argv[1]);
 224                 return 1;
 225         }
 226
 227         printf("host %s is alive\n", argv[1]);
 228
 229         return 0;
 230 }
 231
 232 U_BOOT_CMD(
 233         ping,   2,      1,      do_ping,
 234         "ping\t- send ICMP ECHO_REQUEST to network host\n",
 235         "pingAddress\n"
 236 );
 237 #endif  /* CFG_CMD_PING */
 238
 239 #if (CONFIG_COMMANDS & CFG_CMD_CDP)
 240
 241 static void cdp_update_env(void)
 242 {
 243         char tmp[16];
 244
 245         if (CDPApplianceVLAN != htons(-1)) {
 246                 printf("CDP offered appliance VLAN %d\n", ntohs(CDPApplianceVLAN));
 247                 VLAN_to_string(CDPApplianceVLAN, tmp);
 248                 setenv("vlan", tmp);
 249                 NetOurVLAN = CDPApplianceVLAN;
 250         }
 251
 252         if (CDPNativeVLAN != htons(-1)) {
 253                 printf("CDP offered native VLAN %d\n", ntohs(CDPNativeVLAN));
 254                 VLAN_to_string(CDPNativeVLAN, tmp);
 255                 setenv("nvlan", tmp);
 256                 NetOurNativeVLAN = CDPNativeVLAN;
 257         }
 258
 259 }
 260
 261 int do_cdp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 262 {
 263         int r;
 264
 265         r = NetLoop(CDP);
 266         if (r < 0) {
 267                 printf("cdp failed; perhaps not a CISCO switch?\n");
 268                 return 1;
 269         }
 270
 271         cdp_update_env();
 272
 273         return 0;
 274 }
 275
 276 U_BOOT_CMD(
 277         cdp,    1,      1,      do_cdp,
 278         "cdp\t- Perform CDP network configuration\n",
 279 );
 280 #endif  /* CFG_CMD_CDP */
 281
 282 #endif  /* CFG_CMD_NET */