package/network/config/swconfig/src/cli.c

   1 /*
   2  * swconfig.c: Switch configuration utility
   3  *
   4  * Copyright (C) 2008 Felix Fietkau <nbd@nbd.name>
   5  * Copyright (C) 2010 Martin Mares <mj@ucw.cz>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * version 2 as published by the Free Software Foundatio.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #include <stdio.h>
  18 #include <string.h>
  19 #include <stdlib.h>
  20 #include <inttypes.h>
  21 #include <errno.h>
  22 #include <stdint.h>
  23 #include <getopt.h>
  24 #include <sys/types.h>
  25 #include <sys/socket.h>
  26 #include <uci.h>
  27
  28 #include <linux/types.h>
  29 #include <linux/netlink.h>
  30 #include <linux/genetlink.h>
  31 #include <netlink/netlink.h>
  32 #include <netlink/genl/genl.h>
  33 #include <netlink/genl/ctrl.h>
  34 #include <linux/switch.h>
  35 #include "swlib.h"
  36
  37 enum {
  38         CMD_NONE,
  39         CMD_GET,
  40         CMD_SET,
  41         CMD_LOAD,
  42         CMD_HELP,
  43         CMD_SHOW,
  44         CMD_PORTMAP,
  45 };
  46
  47 static void
  48 print_attrs(const struct switch_attr *attr)
  49 {
  50         int i = 0;
  51         while (attr) {
  52                 const char *type;
  53                 switch(attr->type) {
  54                         case SWITCH_TYPE_INT:
  55                                 type = "int";
  56                                 break;
  57                         case SWITCH_TYPE_STRING:
  58                                 type = "string";
  59                                 break;
  60                         case SWITCH_TYPE_PORTS:
  61                                 type = "ports";
  62                                 break;
  63                         case SWITCH_TYPE_NOVAL:
  64                                 type = "none";
  65                                 break;
  66                         default:
  67                                 type = "unknown";
  68                                 break;
  69                 }
  70                 printf("\tAttribute %d (%s): %s (%s)\n", ++i, type, attr->name, attr->description);
  71                 attr = attr->next;
  72         }
  73 }
  74
  75 static void
  76 list_attributes(struct switch_dev *dev)
  77 {
  78         printf("%s: %s(%s), ports: %d (cpu @ %d), vlans: %d\n", dev->dev_name, dev->alias, dev->name, dev->ports, dev->cpu_port, dev->vlans);
  79         printf("     --switch\n");
  80         print_attrs(dev->ops);
  81         printf("     --vlan\n");
  82         print_attrs(dev->vlan_ops);
  83         printf("     --port\n");
  84         print_attrs(dev->port_ops);
  85 }
  86
  87 static const char *
  88 speed_str(int speed)
  89 {
  90         switch (speed) {
  91         case 10:
  92                 return "10baseT";
  93         case 100:
  94                 return "100baseT";
  95         case 1000:
  96                 return "1000baseT";
  97         default:
  98                 break;
  99         }
 100
 101         return "unknown";
 102 }
 103
 104 static void
 105 print_attr_val(const struct switch_attr *attr, const struct switch_val *val)
 106 {
 107         struct switch_port_link *link;
 108         int i;
 109
 110         switch (attr->type) {
 111         case SWITCH_TYPE_INT:
 112                 printf("%d", val->value.i);
 113                 break;
 114         case SWITCH_TYPE_STRING:
 115                 printf("%s", val->value.s);
 116                 break;
 117         case SWITCH_TYPE_PORTS:
 118                 for(i = 0; i < val->len; i++) {
 119                         printf("%d%s ",
 120                                 val->value.ports[i].id,
 121                                 (val->value.ports[i].flags &
 122                                  SWLIB_PORT_FLAG_TAGGED) ? "t" : "");
 123                 }
 124                 break;
 125         case SWITCH_TYPE_LINK:
 126                 link = val->value.link;
 127                 if (link->link)
 128                         printf("port:%d link:up speed:%s %s-duplex %s%s%s%s%s",
 129                                 val->port_vlan,
 130                                 speed_str(link->speed),
 131                                 link->duplex ? "full" : "half",
 132                                 link->tx_flow ? "txflow " : "",
 133                                 link->rx_flow ? "rxflow " : "",
 134                                 link->eee & SWLIB_LINK_FLAG_EEE_100BASET ? "eee100 " : "",
 135                                 link->eee & SWLIB_LINK_FLAG_EEE_1000BASET ? "eee1000 " : "",
 136                                 link->aneg ? "auto" : "");
 137                 else
 138                         printf("port:%d link:down", val->port_vlan);
 139                 break;
 140         default:
 141                 printf("?unknown-type?");
 142         }
 143 }
 144
 145 static void
 146 show_attrs(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val)
 147 {
 148         while (attr) {
 149                 if (attr->type != SWITCH_TYPE_NOVAL) {
 150                         printf("\t%s: ", attr->name);
 151                         if (swlib_get_attr(dev, attr, val) < 0)
 152                                 printf("???");
 153                         else
 154                                 print_attr_val(attr, val);
 155                         putchar('\n');
 156                 }
 157                 attr = attr->next;
 158         }
 159 }
 160
 161 static void
 162 show_global(struct switch_dev *dev)
 163 {
 164         struct switch_val val;
 165
 166         printf("Global attributes:\n");
 167         show_attrs(dev, dev->ops, &val);
 168 }
 169
 170 static void
 171 show_port(struct switch_dev *dev, int port)
 172 {
 173         struct switch_val val;
 174
 175         printf("Port %d:\n", port);
 176         val.port_vlan = port;
 177         show_attrs(dev, dev->port_ops, &val);
 178 }
 179
 180 static void
 181 show_vlan(struct switch_dev *dev, int vlan, bool all)
 182 {
 183         struct switch_val val;
 184         struct switch_attr *attr;
 185
 186         val.port_vlan = vlan;
 187
 188         if (all) {
 189                 attr = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, "ports");
 190                 if (swlib_get_attr(dev, attr, &val) < 0)
 191                         return;
 192
 193                 if (!val.len)
 194                         return;
 195         }
 196
 197         printf("VLAN %d:\n", vlan);
 198         show_attrs(dev, dev->vlan_ops, &val);
 199 }
 200
 201 static void
 202 print_usage(void)
 203 {
 204         printf("swconfig list\n");
 205         printf("swconfig dev <dev> [port <port>|vlan <vlan>] (help|set <key> <value>|get <key>|load <config>|show)\n");
 206         exit(1);
 207 }
 208
 209 static void
 210 swconfig_load_uci(struct switch_dev *dev, const char *name)
 211 {
 212         struct uci_context *ctx;
 213         struct uci_package *p = NULL;
 214         int ret = -1;
 215
 216         ctx = uci_alloc_context();
 217         if (!ctx)
 218                 return;
 219
 220         uci_load(ctx, name, &p);
 221         if (!p) {
 222                 uci_perror(ctx, "Failed to load config file: ");
 223                 goto out;
 224         }
 225
 226         ret = swlib_apply_from_uci(dev, p);
 227         if (ret < 0)
 228                 fprintf(stderr, "Failed to apply configuration for switch '%s'\n", dev->dev_name);
 229
 230 out:
 231         uci_free_context(ctx);
 232         exit(ret);
 233 }
 234
 235 int main(int argc, char **argv)
 236 {
 237         int retval = 0;
 238         struct switch_dev *dev;
 239         struct switch_attr *a;
 240         struct switch_val val;
 241         int i;
 242
 243         int cmd = CMD_NONE;
 244         char *cdev = NULL;
 245         int cport = -1;
 246         int cvlan = -1;
 247         char *ckey = NULL;
 248         char *cvalue = NULL;
 249         char *csegment = NULL;
 250
 251         if((argc == 2) && !strcmp(argv[1], "list")) {
 252                 swlib_list();
 253                 return 0;
 254         }
 255
 256         if(argc < 4)
 257                 print_usage();
 258
 259         if(strcmp(argv[1], "dev"))
 260                 print_usage();
 261
 262         cdev = argv[2];
 263
 264         for(i = 3; i < argc; i++)
 265         {
 266                 char *arg = argv[i];
 267                 if (cmd != CMD_NONE) {
 268                         print_usage();
 269                 } else if (!strcmp(arg, "port") && i+1 < argc) {
 270                         cport = atoi(argv[++i]);
 271                 } else if (!strcmp(arg, "vlan") && i+1 < argc) {
 272                         cvlan = atoi(argv[++i]);
 273                 } else if (!strcmp(arg, "help")) {
 274                         cmd = CMD_HELP;
 275                 } else if (!strcmp(arg, "set") && i+1 < argc) {
 276                         cmd = CMD_SET;
 277                         ckey = argv[++i];
 278                         if (i+1 < argc)
 279                                 cvalue = argv[++i];
 280                 } else if (!strcmp(arg, "get") && i+1 < argc) {
 281                         cmd = CMD_GET;
 282                         ckey = argv[++i];
 283                 } else if (!strcmp(arg, "load") && i+1 < argc) {
 284                         if ((cport >= 0) || (cvlan >= 0))
 285                                 print_usage();
 286                         cmd = CMD_LOAD;
 287                         ckey = argv[++i];
 288                 } else if (!strcmp(arg, "portmap")) {
 289                         if (i + 1 < argc)
 290                                 csegment = argv[++i];
 291                         cmd = CMD_PORTMAP;
 292                 } else if (!strcmp(arg, "show")) {
 293                         cmd = CMD_SHOW;
 294                 } else {
 295                         print_usage();
 296                 }
 297         }
 298
 299         if (cmd == CMD_NONE)
 300                 print_usage();
 301         if (cport > -1 && cvlan > -1)
 302                 print_usage();
 303
 304         dev = swlib_connect(cdev);
 305         if (!dev) {
 306                 fprintf(stderr, "Failed to connect to the switch. Use the \"list\" command to see which switches are available.\n");
 307                 return 1;
 308         }
 309
 310         swlib_scan(dev);
 311
 312         if (cmd == CMD_GET || cmd == CMD_SET) {
 313                 if(cport > -1)
 314                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_PORT, ckey);
 315                 else if(cvlan > -1)
 316                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, ckey);
 317                 else
 318                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_GLOBAL, ckey);
 319
 320                 if(!a)
 321                 {
 322                         fprintf(stderr, "Unknown attribute \"%s\"\n", ckey);
 323                         retval = -1;
 324                         goto out;
 325                 }
 326         }
 327
 328         switch(cmd)
 329         {
 330         case CMD_SET:
 331                 if ((a->type != SWITCH_TYPE_NOVAL) &&
 332                                 (cvalue == NULL))
 333                         print_usage();
 334
 335                 if(cvlan > -1)
 336                         cport = cvlan;
 337
 338                 retval = swlib_set_attr_string(dev, a, cport, cvalue);
 339                 if (retval < 0)
 340                 {
 341                         nl_perror(-retval, "Failed to set attribute");
 342                         goto out;
 343                 }
 344                 break;
 345         case CMD_GET:
 346                 if(cvlan > -1)
 347                         val.port_vlan = cvlan;
 348                 if(cport > -1)
 349                         val.port_vlan = cport;
 350                 retval = swlib_get_attr(dev, a, &val);
 351                 if (retval < 0)
 352                 {
 353                         nl_perror(-retval, "Failed to get attribute");
 354                         goto out;
 355                 }
 356                 print_attr_val(a, &val);
 357                 putchar('\n');
 358                 break;
 359         case CMD_LOAD:
 360                 swconfig_load_uci(dev, ckey);
 361                 break;
 362         case CMD_HELP:
 363                 list_attributes(dev);
 364                 break;
 365         case CMD_PORTMAP:
 366                 swlib_print_portmap(dev, csegment);
 367                 break;
 368         case CMD_SHOW:
 369                 if (cport >= 0 || cvlan >= 0) {
 370                         if (cport >= 0)
 371                                 show_port(dev, cport);
 372                         else
 373                                 show_vlan(dev, cvlan, false);
 374                 } else {
 375                         show_global(dev);
 376                         for (i=0; i < dev->ports; i++)
 377                                 show_port(dev, i);
 378                         for (i=0; i < dev->vlans; i++)
 379                                 show_vlan(dev, i, true);
 380                 }
 381                 break;
 382         }
 383
 384 out:
 385         swlib_free_all(dev);
 386         return retval;
 387 }