main.c

   1 /**
   2  * nmrp-flash - Netgear Unbrick Utility
   3  * Copyright (C) 2016 Joseph Lehner <joseph.c.lehner@gmail.com>
   4  *
   5  * nmrp-flash is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * nmrp-flash is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with nmrp-flash.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #include <unistd.h>
  21 #include <getopt.h>
  22 #include <stdlib.h>
  23 #include <stdio.h>
  24 #include "nmrpd.h"
  25
  26 #define NMRPFLASH_TFTP_TEST
  27
  28 int verbosity = 0;
  29
  30 void usage(FILE *fp)
  31 {
  32         fprintf(fp,
  33                         "Usage: nmrp-flash [OPTIONS...]\n"
  34                         "\n"
  35                         "Options (-a, -i and -f are mandatory):\n"
  36                         " -a <ipaddr>     IP address to assign to target device\n"
  37                         " -f <firmware>   Firmware file\n"
  38                         " -i <interface>  Network interface directly connected to device\n"
  39                         " -m <mac>        MAC address of target device (xx:xx:xx:xx:xx:xx)\n"
  40                         " -M <netmask>    Subnet mask to assign to target device\n"
  41                         " -t <timeout>    Timeout (in milliseconds) for regular messages\n"
  42                         " -T <timeout>    Time to wait after successfull TFTP upload\n"
  43                         " -p <port>       Port to use for TFTP upload\n"
  44 #ifdef NMRPFLASH_TFTP_TEST
  45                         " -U              Test TFTP upload\n"
  46 #endif
  47                         " -v              Be verbose\n"
  48                         " -V              Print version and exit\n"
  49                         " -L              List network interfaces\n"
  50                         " -h              Show this screen\n"
  51                         "\n"
  52                         "Example:\n"
  53                         "\n"
  54 #ifndef NMRPFLASH_WINDOWS
  55                         "$ sudo nmrp-flash -i eth0 -a 192.168.1.254 -f firmware.bin\n"
  56 #else
  57                         "C:\\> nmrp-flash.exe -i net0 -a 192.168.1.254 -f firmware.bin\n"
  58 #endif
  59                         "\n"
  60                         "nmrp-flash v%s, Copyright (C) 2016 Joseph C. Lehner\n"
  61                         "nmrp-flash is free software, licensed under the GNU GPLv3.\n"
  62                         "Source code at https://github.com/jclehner/nmrp-flash\n"
  63                         "\n",
  64                         NMRPD_VERSION
  65           );
  66 }
  67
  68 int main(int argc, char **argv)
  69 {
  70         int c, val, max;
  71         struct nmrpd_args args = {
  72                 .rx_timeout = 200,
  73                 .ul_timeout = 60000,
  74                 .tftpcmd = NULL,
  75                 .filename = NULL,
  76                 .ipaddr = NULL,
  77                 .ipmask = "255.255.255.0",
  78                 .intf = NULL,
  79                 .mac = "ff:ff:ff:ff:ff:ff",
  80                 .op = NMRP_UPLOAD_FW,
  81                 .port = 69,
  82                 .force_root = 1
  83         };
  84 #ifdef NMRPFLASH_WINDOWS
  85         WSADATA wsa;
  86
  87         val = WSAStartup(MAKEWORD(2, 2), &wsa);
  88         if (val != 0) {
  89                 win_perror2("WSAStartup", val);
  90                 return 1;
  91         }
  92 #endif
  93
  94         opterr = 0;
  95
  96         while ((c = getopt(argc, argv, "a:f:i:m:M:p:t:T:hLVvU")) != -1) {
  97                 max = 0x7fffffff;
  98                 switch (c) {
  99                         case 'a':
 100                                 args.ipaddr = optarg;
 101                                 break;
 102                         case 'f':
 103                                 args.filename = optarg;
 104                                 break;
 105                         case 'i':
 106                                 args.intf = optarg;
 107                                 break;
 108                         case 'm':
 109                                 args.mac = optarg;
 110                                 break;
 111                         case 'M':
 112                                 args.ipmask = optarg;
 113                                 break;
 114                         case 'p':
 115                                 max = 0xffff;
 116                         case 'T':
 117                         case 't':
 118                                 val = atoi(optarg);
 119                                 if (val <= 0 || val > max) {
 120                                         fprintf(stderr, "Invalid numeric value for -%c.\n", c);
 121                                         return 1;
 122                                 }
 123
 124                                 if (c == 'p') {
 125                                         args.port = val;
 126                                 } else if (c == 't') {
 127                                         args.rx_timeout = val;
 128                                 } else {
 129                                         args.ul_timeout = val;
 130                                 }
 131
 132                                 break;
 133                         case 'V':
 134                                 printf("nmrp-flash v%s\n", NMRPD_VERSION);
 135                                 val = 0;
 136                                 goto out;
 137                         case 'v':
 138                                 ++verbosity;
 139                                 break;
 140                         case 'L':
 141                                 val = ethsock_list_all();
 142                                 goto out;
 143                         case 'h':
 144                                 usage(stdout);
 145                                 val = 0;
 146                                 goto out;
 147 #ifdef NMRPFLASH_TFTP_TEST
 148                         case 'U':
 149                                 if (args.ipaddr && args.filename) {
 150                                         val = tftp_put(&args);
 151                                         goto out;
 152                                 }
 153                                 /* fall through */
 154 #endif
 155                         default:
 156                                 usage(stderr);
 157                                 val = 1;
 158                                 goto out;
 159                 }
 160         }
 161
 162         if (!args.filename || !args.intf || !args.ipaddr) {
 163                 usage(stderr);
 164                 return 1;
 165         }
 166
 167 #ifndef NMRPFLASH_WINDOWS
 168         if (geteuid() != 0) {
 169                 fprintf(stderr, "This program must be run as root!\n");
 170                 return 1;
 171         }
 172 #endif
 173
 174         val = nmrp_do(&args);
 175
 176 out:
 177 #ifdef NMRPFLASH_WINDOWS
 178         WSACleanup();
 179 #endif
 180         return val;
 181 }