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 <cmd_autoscript.h>
  30 #include <net.h>
  31
  32 #if (CONFIG_COMMANDS & CFG_CMD_NET)
  33
  34
  35 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
  36
  37 static int netboot_common (int, cmd_tbl_t *, int , char *[]);
  38
  39 int do_bootp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  40 {
  41         return netboot_common (BOOTP, cmdtp, argc, argv);
  42 }
  43
  44 cmd_tbl_t U_BOOT_CMD(BOOTP) = MK_CMD_ENTRY(
  45         "bootp",        3,      1,      do_bootp,
  46         "bootp   - boot image via network using BootP/TFTP protocol\n",
  47         "[loadAddress] [bootfilename]\n"
  48 );
  49
  50 int do_tftpb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  51 {
  52         return netboot_common (TFTP, cmdtp, argc, argv);
  53 }
  54
  55 cmd_tbl_t U_BOOT_CMD(TFTPB) = MK_CMD_ENTRY(
  56         "tftpboot",     3,      1,      do_tftpb,
  57         "tftpboot- boot image via network using TFTP protocol\n"
  58         "               and env variables ipaddr and serverip\n",
  59         "[loadAddress] [bootfilename]\n"
  60 );
  61
  62 int do_rarpb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  63 {
  64         return netboot_common (RARP, cmdtp, argc, argv);
  65 }
  66
  67 cmd_tbl_t U_BOOT_CMD(RARPB) = MK_CMD_ENTRY(
  68         "rarpboot",     3,      1,      do_rarpb,
  69         "rarpboot- boot image via network using RARP/TFTP protocol\n",
  70         "[loadAddress] [bootfilename]\n"
  71 );
  72
  73 #if (CONFIG_COMMANDS & CFG_CMD_DHCP)
  74 int do_dhcp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  75 {
  76         return netboot_common(DHCP, cmdtp, argc, argv);
  77 }
  78
  79 cmd_tbl_t U_BOOT_CMD(DHCP) = MK_CMD_ENTRY(
  80         "dhcp", 3,      1,      do_dhcp,
  81         "dhcp    - invoke DHCP client to obtain IP/boot params\n",
  82         "\n"
  83 );
  84 #endif  /* CFG_CMD_DHCP */
  85
  86 static void netboot_update_env(void)
  87 {
  88     char tmp[16] ;
  89
  90     if (NetOurGatewayIP) {
  91         ip_to_string (NetOurGatewayIP, tmp);
  92         setenv("gatewayip", tmp);
  93     }
  94
  95     if (NetOurSubnetMask) {
  96         ip_to_string (NetOurSubnetMask, tmp);
  97         setenv("netmask", tmp);
  98     }
  99
 100     if (NetOurHostName[0])
 101         setenv("hostname", NetOurHostName);
 102
 103     if (NetOurRootPath[0])
 104         setenv("rootpath", NetOurRootPath);
 105
 106     if (NetOurIP) {
 107         ip_to_string (NetOurIP, tmp);
 108         setenv("ipaddr", tmp);
 109     }
 110
 111     if (NetServerIP) {
 112         ip_to_string (NetServerIP, tmp);
 113         setenv("serverip", tmp);
 114     }
 115
 116     if (NetOurDNSIP) {
 117         ip_to_string (NetOurDNSIP, tmp);
 118         setenv("dnsip", tmp);
 119     }
 120
 121     if (NetOurNISDomain[0])
 122         setenv("domain", NetOurNISDomain);
 123
 124 }
 125 static int
 126 netboot_common (int proto, cmd_tbl_t *cmdtp, int argc, char *argv[])
 127 {
 128         char *s;
 129         int   rcode = 0;
 130         int   size;
 131
 132         /* pre-set load_addr */
 133         if ((s = getenv("loadaddr")) != NULL) {
 134                 load_addr = simple_strtoul(s, NULL, 16);
 135         }
 136
 137         switch (argc) {
 138         case 1:
 139                 break;
 140
 141         case 2: /* only one arg - accept two forms:
 142                  * just load address, or just boot file name.
 143                  * The latter form must be written "filename" here.
 144                  */
 145                 if (argv[1][0] == '"') {        /* just boot filename */
 146                         copy_filename (BootFile, argv[1], sizeof(BootFile));
 147                 } else {                        /* load address */
 148                         load_addr = simple_strtoul(argv[1], NULL, 16);
 149                 }
 150                 break;
 151
 152         case 3: load_addr = simple_strtoul(argv[1], NULL, 16);
 153                 copy_filename (BootFile, argv[2], sizeof(BootFile));
 154
 155                 break;
 156
 157         default: printf ("Usage:\n%s\n", cmdtp->usage);
 158                 return 1;
 159         }
 160
 161         if ((size = NetLoop(proto)) < 0)
 162                 return 1;
 163
 164         /* NetLoop ok, update environment */
 165         netboot_update_env();
 166
 167         /* done if no file was loaded (no errors though) */
 168         if (size == 0)
 169                 return 0;
 170
 171         /* flush cache */
 172         flush_cache(load_addr, size);
 173
 174         /* Loading ok, check if we should attempt an auto-start */
 175         if (((s = getenv("autostart")) != NULL) && (strcmp(s,"yes") == 0)) {
 176                 char *local_args[2];
 177                 local_args[0] = argv[0];
 178                 local_args[1] = NULL;
 179
 180                 printf ("Automatic boot of image at addr 0x%08lX ...\n",
 181                         load_addr);
 182                 rcode = do_bootm (cmdtp, 0, 1, local_args);
 183         }
 184
 185 #ifdef CONFIG_AUTOSCRIPT
 186         if (((s = getenv("autoscript")) != NULL) && (strcmp(s,"yes") == 0)) {
 187                 printf("Running autoscript at addr 0x%08lX ...\n", load_addr);
 188                 rcode = autoscript (load_addr);
 189         }
 190 #endif
 191         return rcode;
 192 }
 193
 194 #if (CONFIG_COMMANDS & CFG_CMD_PING)
 195 int do_ping (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 196 {
 197         if (argc < 2)
 198                 return -1;
 199
 200         NetPingIP = string_to_ip(argv[1]);
 201         if (NetPingIP == 0) {
 202                 printf ("Usage:\n%s\n", cmdtp->usage);
 203                 return -1;
 204         }
 205
 206         if (NetLoop(PING) < 0) {
 207                 printf("ping failed; host %s is not alive\n", argv[1]);
 208                 return 1;
 209         }
 210
 211         printf("host %s is alive\n", argv[1]);
 212
 213         return 0;
 214 }
 215 #endif  /* CFG_CMD_PING */
 216
 217 #endif  /* CFG_CMD_NET */