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 };
  45
  46 static void
  47 print_attrs(const struct switch_attr *attr)
  48 {
  49         int i = 0;
  50         while (attr) {
  51                 const char *type;
  52                 switch(attr->type) {
  53                         case SWITCH_TYPE_INT:
  54                                 type = "int";
  55                                 break;
  56                         case SWITCH_TYPE_STRING:
  57                                 type = "string";
  58                                 break;
  59                         case SWITCH_TYPE_PORTS:
  60                                 type = "ports";
  61                                 break;
  62                         case SWITCH_TYPE_NOVAL:
  63                                 type = "none";
  64                                 break;
  65                         default:
  66                                 type = "unknown";
  67                                 break;
  68                 }
  69                 printf("\tAttribute %d (%s): %s (%s)\n", ++i, type, attr->name, attr->description);
  70                 attr = attr->next;
  71         }
  72 }
  73
  74 static void
  75 list_attributes(struct switch_dev *dev)
  76 {
  77         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);
  78         printf("     --switch\n");
  79         print_attrs(dev->ops);
  80         printf("     --vlan\n");
  81         print_attrs(dev->vlan_ops);
  82         printf("     --port\n");
  83         print_attrs(dev->port_ops);
  84 }
  85
  86 static const char *
  87 speed_str(int speed)
  88 {
  89         switch (speed) {
  90         case 10:
  91                 return "10baseT";
  92         case 100:
  93                 return "100baseT";
  94         case 1000:
  95                 return "1000baseT";
  96         default:
  97                 break;
  98         }
  99
 100         return "unknown";
 101 }
 102
 103 static void
 104 print_attr_val(const struct switch_attr *attr, const struct switch_val *val)
 105 {
 106         struct switch_port_link *link;
 107         int i;
 108
 109         switch (attr->type) {
 110         case SWITCH_TYPE_INT:
 111                 printf("%d", val->value.i);
 112                 break;
 113         case SWITCH_TYPE_STRING:
 114                 printf("%s", val->value.s);
 115                 break;
 116         case SWITCH_TYPE_PORTS:
 117                 for(i = 0; i < val->len; i++) {
 118                         printf("%d%s ",
 119                                 val->value.ports[i].id,
 120                                 (val->value.ports[i].flags &
 121                                  SWLIB_PORT_FLAG_TAGGED) ? "t" : "");
 122                 }
 123                 break;
 124         case SWITCH_TYPE_LINK:
 125                 link = val->value.link;
 126                 if (link->link)
 127                         printf("port:%d link:up speed:%s %s-duplex %s%s%s%s%s",
 128                                 val->port_vlan,
 129                                 speed_str(link->speed),
 130                                 link->duplex ? "full" : "half",
 131                                 link->tx_flow ? "txflow " : "",
 132                                 link->rx_flow ? "rxflow " : "",
 133                                 link->eee & SWLIB_LINK_FLAG_EEE_100BASET ? "eee100 " : "",
 134                                 link->eee & SWLIB_LINK_FLAG_EEE_1000BASET ? "eee1000 " : "",
 135                                 link->aneg ? "auto" : "");
 136                 else
 137                         printf("port:%d link:down", val->port_vlan);
 138                 break;
 139         default:
 140                 printf("?unknown-type?");
 141         }
 142 }
 143
 144 static void
 145 show_attrs(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val)
 146 {
 147         while (attr) {
 148                 if (attr->type != SWITCH_TYPE_NOVAL) {
 149                         printf("\t%s: ", attr->name);
 150                         if (swlib_get_attr(dev, attr, val) < 0)
 151                                 printf("???");
 152                         else
 153                                 print_attr_val(attr, val);
 154                         putchar('\n');
 155                 }
 156                 attr = attr->next;
 157         }
 158 }
 159
 160 static void
 161 show_global(struct switch_dev *dev)
 162 {
 163         struct switch_val val;
 164
 165         printf("Global attributes:\n");
 166         show_attrs(dev, dev->ops, &val);
 167 }
 168
 169 static void
 170 show_port(struct switch_dev *dev, int port)
 171 {
 172         struct switch_val val;
 173
 174         printf("Port %d:\n", port);
 175         val.port_vlan = port;
 176         show_attrs(dev, dev->port_ops, &val);
 177 }
 178
 179 static void
 180 show_vlan(struct switch_dev *dev, int vlan, bool all)
 181 {
 182         struct switch_val val;
 183         struct switch_attr *attr;
 184
 185         val.port_vlan = vlan;
 186
 187         if (all) {
 188                 attr = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, "ports");
 189                 if (swlib_get_attr(dev, attr, &val) < 0)
 190                         return;
 191
 192                 if (!val.len)
 193                         return;
 194         }
 195
 196         printf("VLAN %d:\n", vlan);
 197         show_attrs(dev, dev->vlan_ops, &val);
 198 }
 199
 200 static void
 201 print_usage(void)
 202 {
 203         printf("swconfig list\n");
 204         printf("swconfig dev <dev> [port <port>|vlan <vlan>] (help|set <key> <value>|get <key>|load <config>|show)\n");
 205         exit(1);
 206 }
 207
 208 static void
 209 swconfig_load_uci(struct switch_dev *dev, const char *name)
 210 {
 211         struct uci_context *ctx;
 212         struct uci_package *p = NULL;
 213         int ret = -1;
 214
 215         ctx = uci_alloc_context();
 216         if (!ctx)
 217                 return;
 218
 219         uci_load(ctx, name, &p);
 220         if (!p) {
 221                 uci_perror(ctx, "Failed to load config file: ");
 222                 goto out;
 223         }
 224
 225         ret = swlib_apply_from_uci(dev, p);
 226         if (ret < 0)
 227                 fprintf(stderr, "Failed to apply configuration for switch '%s'\n", dev->dev_name);
 228
 229 out:
 230         uci_free_context(ctx);
 231         exit(ret);
 232 }
 233
 234 int main(int argc, char **argv)
 235 {
 236         int retval = 0;
 237         struct switch_dev *dev;
 238         struct switch_attr *a;
 239         struct switch_val val;
 240         int i;
 241
 242         int cmd = CMD_NONE;
 243         char *cdev = NULL;
 244         int cport = -1;
 245         int cvlan = -1;
 246         char *ckey = NULL;
 247         char *cvalue = NULL;
 248         char *csegment = NULL;
 249
 250         if((argc == 2) && !strcmp(argv[1], "list")) {
 251                 swlib_list();
 252                 return 0;
 253         }
 254
 255         if(argc < 4)
 256                 print_usage();
 257
 258         if(strcmp(argv[1], "dev"))
 259                 print_usage();
 260
 261         cdev = argv[2];
 262
 263         for(i = 3; i < argc; i++)
 264         {
 265                 char *arg = argv[i];
 266                 if (cmd != CMD_NONE) {
 267                         print_usage();
 268                 } else if (!strcmp(arg, "port") && i+1 < argc) {
 269                         cport = atoi(argv[++i]);
 270                 } else if (!strcmp(arg, "vlan") && i+1 < argc) {
 271                         cvlan = atoi(argv[++i]);
 272                 } else if (!strcmp(arg, "help")) {
 273                         cmd = CMD_HELP;
 274                 } else if (!strcmp(arg, "set") && i+1 < argc) {
 275                         cmd = CMD_SET;
 276                         ckey = argv[++i];
 277                         if (i+1 < argc)
 278                                 cvalue = argv[++i];
 279                 } else if (!strcmp(arg, "get") && i+1 < argc) {
 280                         cmd = CMD_GET;
 281                         ckey = argv[++i];
 282                 } else if (!strcmp(arg, "load") && i+1 < argc) {
 283                         if ((cport >= 0) || (cvlan >= 0))
 284                                 print_usage();
 285                         cmd = CMD_LOAD;
 286                         ckey = argv[++i];
 287                 } else if (!strcmp(arg, "show")) {
 288                         cmd = CMD_SHOW;
 289                 } else {
 290                         print_usage();
 291                 }
 292         }
 293
 294         if (cmd == CMD_NONE)
 295                 print_usage();
 296         if (cport > -1 && cvlan > -1)
 297                 print_usage();
 298
 299         dev = swlib_connect(cdev);
 300         if (!dev) {
 301                 fprintf(stderr, "Failed to connect to the switch. Use the \"list\" command to see which switches are available.\n");
 302                 return 1;
 303         }
 304
 305         swlib_scan(dev);
 306
 307         if (cmd == CMD_GET || cmd == CMD_SET) {
 308                 if(cport > -1)
 309                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_PORT, ckey);
 310                 else if(cvlan > -1)
 311                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, ckey);
 312                 else
 313                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_GLOBAL, ckey);
 314
 315                 if(!a)
 316                 {
 317                         fprintf(stderr, "Unknown attribute \"%s\"\n", ckey);
 318                         retval = -1;
 319                         goto out;
 320                 }
 321         }
 322
 323         switch(cmd)
 324         {
 325         case CMD_SET:
 326                 if ((a->type != SWITCH_TYPE_NOVAL) &&
 327                                 (cvalue == NULL))
 328                         print_usage();
 329
 330                 if(cvlan > -1)
 331                         cport = cvlan;
 332
 333                 retval = swlib_set_attr_string(dev, a, cport, cvalue);
 334                 if (retval < 0)
 335                 {
 336                         nl_perror(-retval, "Failed to set attribute");
 337                         goto out;
 338                 }
 339                 break;
 340         case CMD_GET:
 341                 if(cvlan > -1)
 342                         val.port_vlan = cvlan;
 343                 if(cport > -1)
 344                         val.port_vlan = cport;
 345                 retval = swlib_get_attr(dev, a, &val);
 346                 if (retval < 0)
 347                 {
 348                         nl_perror(-retval, "Failed to get attribute");
 349                         goto out;
 350                 }
 351                 print_attr_val(a, &val);
 352                 putchar('\n');
 353                 break;
 354         case CMD_LOAD:
 355                 swconfig_load_uci(dev, ckey);
 356                 break;
 357         case CMD_HELP:
 358                 list_attributes(dev);
 359                 break;
 360         case CMD_SHOW:
 361                 if (cport >= 0 || cvlan >= 0) {
 362                         if (cport >= 0)
 363                                 show_port(dev, cport);
 364                         else
 365                                 show_vlan(dev, cvlan, false);
 366                 } else {
 367                         show_global(dev);
 368                         for (i=0; i < dev->ports; i++)
 369                                 show_port(dev, i);
 370                         for (i=0; i < dev->vlans; i++)
 371                                 show_vlan(dev, i, true);
 372                 }
 373                 break;
 374         }
 375
 376 out:
 377         swlib_free_all(dev);
 378         return retval;
 379 }