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 free_attr_val(const struct switch_attr *attr, const struct switch_val *val)
 106 {
 107         switch (attr->type) {
 108         case SWITCH_TYPE_STRING:
 109                 free(val->value.s);
 110                 break;
 111         case SWITCH_TYPE_PORTS:
 112                 free(val->value.ports);
 113                 break;
 114         case SWITCH_TYPE_LINK:
 115                 free(val->value.link);
 116                 break;
 117         default:
 118                 break;
 119         }
 120 }
 121
 122 static void
 123 print_attr_val(const struct switch_attr *attr, const struct switch_val *val)
 124 {
 125         struct switch_port_link *link;
 126         int i;
 127
 128         switch (attr->type) {
 129         case SWITCH_TYPE_INT:
 130                 printf("%d", val->value.i);
 131                 break;
 132         case SWITCH_TYPE_STRING:
 133                 printf("%s", val->value.s);
 134                 break;
 135         case SWITCH_TYPE_PORTS:
 136                 for(i = 0; i < val->len; i++) {
 137                         printf("%d%s ",
 138                                 val->value.ports[i].id,
 139                                 (val->value.ports[i].flags &
 140                                  SWLIB_PORT_FLAG_TAGGED) ? "t" : "");
 141                 }
 142                 break;
 143         case SWITCH_TYPE_LINK:
 144                 link = val->value.link;
 145                 if (link->link)
 146                         printf("port:%d link:up speed:%s %s-duplex %s%s%s%s%s",
 147                                 val->port_vlan,
 148                                 speed_str(link->speed),
 149                                 link->duplex ? "full" : "half",
 150                                 link->tx_flow ? "txflow " : "",
 151                                 link->rx_flow ? "rxflow " : "",
 152                                 link->eee & SWLIB_LINK_FLAG_EEE_100BASET ? "eee100 " : "",
 153                                 link->eee & SWLIB_LINK_FLAG_EEE_1000BASET ? "eee1000 " : "",
 154                                 link->aneg ? "auto" : "");
 155                 else
 156                         printf("port:%d link:down", val->port_vlan);
 157                 break;
 158         default:
 159                 printf("?unknown-type?");
 160         }
 161 }
 162
 163 static void
 164 show_attrs(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val)
 165 {
 166         while (attr) {
 167                 if (attr->type != SWITCH_TYPE_NOVAL) {
 168                         printf("\t%s: ", attr->name);
 169                         if (swlib_get_attr(dev, attr, val) < 0)
 170                                 printf("???");
 171                         else {
 172                                 print_attr_val(attr, val);
 173                                 free_attr_val(attr, val);
 174                         }
 175                         putchar('\n');
 176                 }
 177                 attr = attr->next;
 178         }
 179 }
 180
 181 static void
 182 show_global(struct switch_dev *dev)
 183 {
 184         struct switch_val val;
 185
 186         printf("Global attributes:\n");
 187         show_attrs(dev, dev->ops, &val);
 188 }
 189
 190 static void
 191 show_port(struct switch_dev *dev, int port)
 192 {
 193         struct switch_val val;
 194
 195         printf("Port %d:\n", port);
 196         val.port_vlan = port;
 197         show_attrs(dev, dev->port_ops, &val);
 198 }
 199
 200 static void
 201 show_vlan(struct switch_dev *dev, int vlan, bool all)
 202 {
 203         struct switch_val val;
 204         struct switch_attr *attr;
 205
 206         val.port_vlan = vlan;
 207
 208         if (all) {
 209                 attr = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, "ports");
 210                 if (swlib_get_attr(dev, attr, &val) < 0)
 211                         return;
 212
 213                 if (!val.len)
 214                         return;
 215         }
 216
 217         printf("VLAN %d:\n", vlan);
 218         show_attrs(dev, dev->vlan_ops, &val);
 219 }
 220
 221 static void
 222 print_usage(void)
 223 {
 224         printf("swconfig list\n");
 225         printf("swconfig dev <dev> [port <port>|vlan <vlan>] (help|set <key> <value>|get <key>|load <config>|show)\n");
 226         exit(1);
 227 }
 228
 229 static void
 230 swconfig_load_uci(struct switch_dev *dev, const char *name)
 231 {
 232         struct uci_context *ctx;
 233         struct uci_package *p = NULL;
 234         int ret = -1;
 235
 236         ctx = uci_alloc_context();
 237         if (!ctx)
 238                 return;
 239
 240         uci_load(ctx, name, &p);
 241         if (!p) {
 242                 uci_perror(ctx, "Failed to load config file: ");
 243                 goto out;
 244         }
 245
 246         ret = swlib_apply_from_uci(dev, p);
 247         if (ret < 0)
 248                 fprintf(stderr, "Failed to apply configuration for switch '%s'\n", dev->dev_name);
 249
 250 out:
 251         uci_free_context(ctx);
 252         exit(ret);
 253 }
 254
 255 int main(int argc, char **argv)
 256 {
 257         int retval = 0;
 258         struct switch_dev *dev;
 259         struct switch_attr *a;
 260         struct switch_val val;
 261         int i;
 262
 263         int cmd = CMD_NONE;
 264         char *cdev = NULL;
 265         int cport = -1;
 266         int cvlan = -1;
 267         char *ckey = NULL;
 268         char *cvalue = NULL;
 269         char *csegment = NULL;
 270
 271         if((argc == 2) && !strcmp(argv[1], "list")) {
 272                 swlib_list();
 273                 return 0;
 274         }
 275
 276         if(argc < 4)
 277                 print_usage();
 278
 279         if(strcmp(argv[1], "dev"))
 280                 print_usage();
 281
 282         cdev = argv[2];
 283
 284         for(i = 3; i < argc; i++)
 285         {
 286                 char *arg = argv[i];
 287                 if (cmd != CMD_NONE) {
 288                         print_usage();
 289                 } else if (!strcmp(arg, "port") && i+1 < argc) {
 290                         cport = atoi(argv[++i]);
 291                 } else if (!strcmp(arg, "vlan") && i+1 < argc) {
 292                         cvlan = atoi(argv[++i]);
 293                 } else if (!strcmp(arg, "help")) {
 294                         cmd = CMD_HELP;
 295                 } else if (!strcmp(arg, "set") && i+1 < argc) {
 296                         cmd = CMD_SET;
 297                         ckey = argv[++i];
 298                         if (i+1 < argc)
 299                                 cvalue = argv[++i];
 300                 } else if (!strcmp(arg, "get") && i+1 < argc) {
 301                         cmd = CMD_GET;
 302                         ckey = argv[++i];
 303                 } else if (!strcmp(arg, "load") && i+1 < argc) {
 304                         if ((cport >= 0) || (cvlan >= 0))
 305                                 print_usage();
 306                         cmd = CMD_LOAD;
 307                         ckey = argv[++i];
 308                 } else if (!strcmp(arg, "portmap")) {
 309                         if (i + 1 < argc)
 310                                 csegment = argv[++i];
 311                         cmd = CMD_PORTMAP;
 312                 } else if (!strcmp(arg, "show")) {
 313                         cmd = CMD_SHOW;
 314                 } else {
 315                         print_usage();
 316                 }
 317         }
 318
 319         if (cmd == CMD_NONE)
 320                 print_usage();
 321         if (cport > -1 && cvlan > -1)
 322                 print_usage();
 323
 324         dev = swlib_connect(cdev);
 325         if (!dev) {
 326                 fprintf(stderr, "Failed to connect to the switch. Use the \"list\" command to see which switches are available.\n");
 327                 return 1;
 328         }
 329
 330         swlib_scan(dev);
 331
 332         if (cmd == CMD_GET || cmd == CMD_SET) {
 333                 if(cport > -1)
 334                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_PORT, ckey);
 335                 else if(cvlan > -1)
 336                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, ckey);
 337                 else
 338                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_GLOBAL, ckey);
 339
 340                 if(!a)
 341                 {
 342                         fprintf(stderr, "Unknown attribute \"%s\"\n", ckey);
 343                         retval = -1;
 344                         goto out;
 345                 }
 346         }
 347
 348         switch(cmd)
 349         {
 350         case CMD_SET:
 351                 if ((a->type != SWITCH_TYPE_NOVAL) &&
 352                                 (cvalue == NULL))
 353                         print_usage();
 354
 355                 if(cvlan > -1)
 356                         cport = cvlan;
 357
 358                 retval = swlib_set_attr_string(dev, a, cport, cvalue);
 359                 if (retval < 0)
 360                 {
 361                         nl_perror(-retval, "Failed to set attribute");
 362                         goto out;
 363                 }
 364                 break;
 365         case CMD_GET:
 366                 if(cvlan > -1)
 367                         val.port_vlan = cvlan;
 368                 if(cport > -1)
 369                         val.port_vlan = cport;
 370                 retval = swlib_get_attr(dev, a, &val);
 371                 if (retval < 0)
 372                 {
 373                         nl_perror(-retval, "Failed to get attribute");
 374                         goto out;
 375                 }
 376                 print_attr_val(a, &val);
 377                 free_attr_val(a, &val);
 378                 putchar('\n');
 379                 break;
 380         case CMD_LOAD:
 381                 swconfig_load_uci(dev, ckey);
 382                 break;
 383         case CMD_HELP:
 384                 list_attributes(dev);
 385                 break;
 386         case CMD_PORTMAP:
 387                 swlib_print_portmap(dev, csegment);
 388                 break;
 389         case CMD_SHOW:
 390                 if (cport >= 0 || cvlan >= 0) {
 391                         if (cport >= 0)
 392                                 show_port(dev, cport);
 393                         else
 394                                 show_vlan(dev, cvlan, false);
 395                 } else {
 396                         show_global(dev);
 397                         for (i=0; i < dev->ports; i++)
 398                                 show_port(dev, i);
 399                         for (i=0; i < dev->vlans; i++)
 400                                 show_vlan(dev, i, true);
 401                 }
 402                 break;
 403         }
 404
 405 out:
 406         swlib_free_all(dev);
 407         return retval;
 408 }