commands/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  * @file
  26  * @brief tftp, rarpboot, dhcp, nfs, cdp - Boot support
  27  */
  28
  29 #include <common.h>
  30 #include <command.h>
  31 #include <environment.h>
  32 #include <driver.h>
  33 #include <net.h>
  34 #include <fs.h>
  35 #include <errno.h>
  36 #include <libbb.h>
  37
  38 void netboot_update_env(void)
  39 {
  40         struct eth_device *eth_current = eth_get_current();
  41         char tmp[22];
  42         IPaddr_t net_gateway_ip = NetOurGatewayIP;
  43         IPaddr_t net_ip = NetOurIP;
  44         IPaddr_t net_server_ip = NetServerIP;
  45         IPaddr_t netmask = NetOurSubnetMask;
  46
  47         if (net_gateway_ip)
  48                 dev_set_param_ip(&eth_current->dev, "gateway", net_gateway_ip);
  49
  50         if (netmask)
  51                 dev_set_param_ip(&eth_current->dev, "netmask", netmask);
  52
  53
  54         if (NetOurHostName[0])
  55                 setenv ("hostname", NetOurHostName);
  56
  57         if (NetOurRootPath[0])
  58                 setenv ("rootpath", NetOurRootPath);
  59
  60         if (net_ip)
  61                 dev_set_param_ip(&eth_current->dev, "ipaddr", net_ip);
  62
  63         if (net_server_ip)
  64                 dev_set_param_ip(&eth_current->dev, "serverip", net_server_ip);
  65
  66         if (NetOurDNSIP) {
  67                 ip_to_string (NetOurDNSIP, tmp);
  68                 setenv ("dnsip", tmp);
  69         }
  70 #ifdef CONFIG_BOOTP_DNS2
  71         if (NetOurDNS2IP) {
  72                 ip_to_string (NetOurDNS2IP, tmp);
  73                 setenv ("dnsip2", tmp);
  74         }
  75 #endif
  76         if (NetOurNISDomain[0])
  77                 setenv ("domain", NetOurNISDomain);
  78 }
  79
  80 #ifdef CONFIG_NET_RARP
  81 extern void RarpRequest(void);
  82
  83 static int do_rarpb(struct command *cmdtp, int argc, char *argv[])
  84 {
  85         int size;
  86
  87         if (NetLoopInit(RARP) < 0)
  88                 return 1;
  89
  90         NetOurIP = 0;
  91         RarpRequest();          /* Basically same as BOOTP */
  92
  93         if ((size = NetLoop()) < 0)
  94                 return 1;
  95
  96         /* NetLoop ok, update environment */
  97         netboot_update_env();
  98
  99         return 0;
 100 }
 101
 102 BAREBOX_CMD_START(rarpboot)
 103         .cmd            = do_rarpb,
 104         .usage          = "boot image via network using rarp/tftp protocol",
 105         BAREBOX_CMD_HELP("[loadAddress] [bootfilename]\n")
 106 BAREBOX_CMD_END
 107 #endif /* CONFIG_NET_RARP */
 108
 109 static int do_ethact(struct command *cmdtp, int argc, char *argv[])
 110 {
 111         struct eth_device *edev;
 112
 113         if (argc == 1) {
 114                 edev = eth_get_current();
 115                 if (edev)
 116                         printf("%s%d\n", edev->dev.name, edev->dev.id);
 117                 return 0;
 118         }
 119
 120         if (argc != 2)
 121                 return COMMAND_ERROR_USAGE;
 122
 123         edev = eth_get_byname(argv[1]);
 124         if (edev)
 125                 eth_set_current(edev);
 126         else {
 127                 printf("no such net device: %s\n", argv[1]);
 128                 return 1;
 129         }
 130
 131         return 0;
 132 }
 133
 134 static const __maybe_unused char cmd_ethact_help[] =
 135 "Usage: ethact [ethx]\n";
 136
 137 BAREBOX_CMD_START(ethact)
 138         .cmd            = do_ethact,
 139         .usage          = "set current ethernet device",
 140         BAREBOX_CMD_HELP(cmd_ethact_help)
 141 BAREBOX_CMD_END
 142