package/swconfig/src/cli.c

   1 /*
   2  * swconfig.c: Switch configuration utility
   3  *
   4  * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundatio.
   9  *
  10  * This program 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
  16 #include <stdio.h>
  17 #include <string.h>
  18 #include <stdlib.h>
  19 #include <inttypes.h>
  20 #include <errno.h>
  21 #include <stdint.h>
  22 #include <getopt.h>
  23 #include <sys/types.h>
  24 #include <sys/socket.h>
  25 #include <uci.h>
  26
  27 #include <linux/types.h>
  28 #include <linux/netlink.h>
  29 #include <linux/genetlink.h>
  30 #include <netlink/netlink.h>
  31 #include <netlink/genl/genl.h>
  32 #include <netlink/genl/ctrl.h>
  33 #include <linux/switch.h>
  34 #include "swlib.h"
  35
  36 enum {
  37         GET,
  38         SET,
  39         LOAD
  40 };
  41
  42 static void
  43 print_attrs(const struct switch_attr *attr)
  44 {
  45         int i = 0;
  46         while (attr) {
  47                 const char *type;
  48                 switch(attr->type) {
  49                         case SWITCH_TYPE_INT:
  50                                 type = "int";
  51                                 break;
  52                         case SWITCH_TYPE_STRING:
  53                                 type = "string";
  54                                 break;
  55                         case SWITCH_TYPE_PORTS:
  56                                 type = "ports";
  57                                 break;
  58                         case SWITCH_TYPE_NOVAL:
  59                                 type = "none";
  60                                 break;
  61                         default:
  62                                 type = "unknown";
  63                                 break;
  64                 }
  65                 printf("\tAttribute %d (%s): %s (%s)\n", ++i, type, attr->name, attr->description);
  66                 attr = attr->next;
  67         }
  68 }
  69
  70 static void
  71 list_attributes(struct switch_dev *dev)
  72 {
  73         printf("Switch %d: %s(%s), ports: %d, vlans: %d\n", dev->id, dev->dev_name, dev->name, dev->ports, dev->vlans);
  74         printf("     --switch\n");
  75         print_attrs(dev->ops);
  76         printf("     --vlan\n");
  77         print_attrs(dev->vlan_ops);
  78         printf("     --port\n");
  79         print_attrs(dev->port_ops);
  80 }
  81
  82 static void
  83 print_usage(void)
  84 {
  85         printf("swconfig dev <dev> [port <port>|vlan <vlan>] (help|set <key> <value>|get <key>|load <config>)\n");
  86         exit(1);
  87 }
  88
  89 static void
  90 swconfig_load_uci(struct switch_dev *dev, const char *name)
  91 {
  92         struct uci_context *ctx;
  93         struct uci_package *p = NULL;
  94         struct uci_element *e;
  95         int ret = -1;
  96
  97         ctx = uci_alloc_context();
  98         if (!ctx)
  99                 return;
 100
 101         uci_load(ctx, name, &p);
 102         if (!p) {
 103                 uci_perror(ctx, "Failed to load config file: ");
 104                 goto out;
 105         }
 106
 107         ret = swlib_apply_from_uci(dev, p);
 108         if (ret < 0)
 109                 fprintf(stderr, "Failed to apply configuration for switch '%s'\n", dev->dev_name);
 110
 111 out:
 112         uci_free_context(ctx);
 113         exit(ret);
 114 }
 115
 116 int main(int argc, char **argv)
 117 {
 118         int retval = 0;
 119         struct switch_dev *dev;
 120         struct switch_attr *a;
 121         struct switch_val val;
 122         int err;
 123         int i;
 124
 125         struct switch_port *ports;
 126
 127         int cmd = 0;
 128         char *cdev = NULL;
 129         int cport = -1;
 130         int cvlan = -1;
 131         char *ckey = NULL;
 132         char *cvalue = NULL;
 133         int chelp = 0;
 134
 135         if(argc < 4)
 136                 print_usage();
 137
 138         if(strcmp(argv[1], "dev"))
 139                 print_usage();
 140
 141         cdev = argv[2];
 142
 143         for(i = 3; i < argc; i++)
 144         {
 145                 int p;
 146                 if (!strcmp(argv[i], "help")) {
 147                         chelp = 1;
 148                         continue;
 149                 }
 150                 if( i + 1 >= argc)
 151                         print_usage();
 152                 p = atoi(argv[i + 1]);
 153                 if (!strcmp(argv[i], "port")) {
 154                         cport = p;
 155                 } else if (!strcmp(argv[i], "vlan")) {
 156                         cvlan = p;
 157                 } else if (!strcmp(argv[i], "set")) {
 158                         if(argc <= i + 1)
 159                                 print_usage();
 160                         cmd = SET;
 161                         ckey = argv[i + 1];
 162                         if (argc > i + 2)
 163                                 cvalue = argv[i + 2];
 164                         else
 165                                 cvalue = NULL;
 166                         i++;
 167                 } else if (!strcmp(argv[i], "get")) {
 168                         cmd = GET;
 169                         ckey = argv[i + 1];
 170                 } else if (!strcmp(argv[i], "load")) {
 171                         if ((cport >= 0) || (cvlan >= 0))
 172                                 print_usage();
 173
 174                         ckey = argv[i + 1];
 175                         cmd = LOAD;
 176                 } else {
 177                         print_usage();
 178                 }
 179                 i++;
 180         }
 181
 182         if(cport > -1 && cvlan > -1)
 183                 print_usage();
 184
 185         dev = swlib_connect(cdev);
 186         if (!dev) {
 187                 fprintf(stderr, "Failed to connect to the switch\n");
 188                 return 1;
 189         }
 190
 191         ports = malloc(sizeof(struct switch_port) * dev->ports);
 192         memset(ports, 0, sizeof(struct switch_port) * dev->ports);
 193         swlib_scan(dev);
 194
 195         if(chelp)
 196         {
 197                 list_attributes(dev);
 198                 goto out;
 199         }
 200
 201         if (cmd != LOAD) {
 202                 if(cport > -1)
 203                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_PORT, ckey);
 204                 else if(cvlan > -1)
 205                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, ckey);
 206                 else
 207                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_GLOBAL, ckey);
 208
 209                 if(!a)
 210                 {
 211                         fprintf(stderr, "Unknown attribute \"%s\"\n", ckey);
 212                         goto out;
 213                 }
 214         }
 215
 216         switch(cmd)
 217         {
 218         case SET:
 219                 if ((a->type != SWITCH_TYPE_NOVAL) &&
 220                                 (cvalue == NULL))
 221                         print_usage();
 222
 223                 if(cvlan > -1)
 224                         cport = cvlan;
 225
 226                 if(swlib_set_attr_string(dev, a, cport, cvalue) < 0)
 227                 {
 228                         fprintf(stderr, "failed\n");
 229                         retval = -1;
 230                         goto out;
 231                 }
 232                 break;
 233         case GET:
 234                 if(cvlan > -1)
 235                         val.port_vlan = cvlan;
 236                 if(cport > -1)
 237                         val.port_vlan = cport;
 238                 if(swlib_get_attr(dev, a, &val) < 0)
 239                 {
 240                         fprintf(stderr, "failed\n");
 241                         retval = -1;
 242                         goto out;
 243                 }
 244                 switch(a->type) {
 245                 case SWITCH_TYPE_INT:
 246                         printf("%d\n", val.value.i);
 247                         break;
 248                 case SWITCH_TYPE_STRING:
 249                         printf("%s\n", val.value.s);
 250                         break;
 251                 case SWITCH_TYPE_PORTS:
 252                         for(i = 0; i < val.len; i++) {
 253                                 printf("%d%s ",
 254                                         val.value.ports[i].id,
 255                                         (val.value.ports[i].flags &
 256                                          SWLIB_PORT_FLAG_TAGGED) ? "t" : "");
 257                         }
 258                         printf("\n");
 259                         break;
 260                 }
 261                 break;
 262         case LOAD:
 263                 swconfig_load_uci(dev, ckey);
 264                 break;
 265         }
 266
 267 out:
 268         swlib_free_all(dev);
 269         free(ports);
 270
 271         return 0;
 272 }