package/swconfig/src/cli.c

   1 /*
   2  * swconfig.c: Switch configuration utility
   3  *
   4  * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
   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 void
  87 print_attr_val(const struct switch_attr *attr, const struct switch_val *val)
  88 {
  89         int i;
  90
  91         switch (attr->type) {
  92         case SWITCH_TYPE_INT:
  93                 printf("%d", val->value.i);
  94                 break;
  95         case SWITCH_TYPE_STRING:
  96                 printf("%s", val->value.s);
  97                 break;
  98         case SWITCH_TYPE_PORTS:
  99                 for(i = 0; i < val->len; i++) {
 100                         printf("%d%s ",
 101                                 val->value.ports[i].id,
 102                                 (val->value.ports[i].flags &
 103                                  SWLIB_PORT_FLAG_TAGGED) ? "t" : "");
 104                 }
 105                 break;
 106         default:
 107                 printf("?unknown-type?");
 108         }
 109 }
 110
 111 static void
 112 show_attrs(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val)
 113 {
 114         while (attr) {
 115                 if (attr->type != SWITCH_TYPE_NOVAL) {
 116                         printf("\t%s: ", attr->name);
 117                         if (swlib_get_attr(dev, attr, val) < 0)
 118                                 printf("???");
 119                         else
 120                                 print_attr_val(attr, val);
 121                         putchar('\n');
 122                 }
 123                 attr = attr->next;
 124         }
 125 }
 126
 127 static void
 128 show_global(struct switch_dev *dev)
 129 {
 130         struct switch_val val;
 131
 132         printf("Global attributes:\n");
 133         show_attrs(dev, dev->ops, &val);
 134 }
 135
 136 static void
 137 show_port(struct switch_dev *dev, int port)
 138 {
 139         struct switch_val val;
 140
 141         printf("Port %d:\n", port);
 142         val.port_vlan = port;
 143         show_attrs(dev, dev->port_ops, &val);
 144 }
 145
 146 static void
 147 show_vlan(struct switch_dev *dev, int vlan, bool all)
 148 {
 149         struct switch_val val;
 150         struct switch_attr *attr;
 151
 152         val.port_vlan = vlan;
 153
 154         if (all) {
 155                 attr = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, "ports");
 156                 if (swlib_get_attr(dev, attr, &val) < 0)
 157                         return;
 158
 159                 if (!val.len)
 160                         return;
 161         }
 162
 163         printf("VLAN %d:\n", vlan);
 164         show_attrs(dev, dev->vlan_ops, &val);
 165 }
 166
 167 static void
 168 print_usage(void)
 169 {
 170         printf("swconfig dev <dev> [port <port>|vlan <vlan>] (help|set <key> <value>|get <key>|load <config>|show)\n");
 171         exit(1);
 172 }
 173
 174 static void
 175 swconfig_load_uci(struct switch_dev *dev, const char *name)
 176 {
 177         struct uci_context *ctx;
 178         struct uci_package *p = NULL;
 179         struct uci_element *e;
 180         int ret = -1;
 181
 182         ctx = uci_alloc_context();
 183         if (!ctx)
 184                 return;
 185
 186         uci_load(ctx, name, &p);
 187         if (!p) {
 188                 uci_perror(ctx, "Failed to load config file: ");
 189                 goto out;
 190         }
 191
 192         ret = swlib_apply_from_uci(dev, p);
 193         if (ret < 0)
 194                 fprintf(stderr, "Failed to apply configuration for switch '%s'\n", dev->dev_name);
 195
 196 out:
 197         uci_free_context(ctx);
 198         exit(ret);
 199 }
 200
 201 int main(int argc, char **argv)
 202 {
 203         int retval = 0;
 204         struct switch_dev *dev;
 205         struct switch_attr *a;
 206         struct switch_val val;
 207         int err;
 208         int i;
 209
 210         int cmd = CMD_NONE;
 211         char *cdev = NULL;
 212         int cport = -1;
 213         int cvlan = -1;
 214         char *ckey = NULL;
 215         char *cvalue = NULL;
 216
 217         if(argc < 4)
 218                 print_usage();
 219
 220         if(strcmp(argv[1], "dev"))
 221                 print_usage();
 222
 223         cdev = argv[2];
 224
 225         for(i = 3; i < argc; i++)
 226         {
 227                 char *arg = argv[i];
 228                 if (cmd != CMD_NONE) {
 229                         print_usage();
 230                 } else if (!strcmp(arg, "port") && i+1 < argc) {
 231                         cport = atoi(argv[++i]);
 232                 } else if (!strcmp(arg, "vlan") && i+1 < argc) {
 233                         cvlan = atoi(argv[++i]);
 234                 } else if (!strcmp(arg, "help")) {
 235                         cmd = CMD_HELP;
 236                 } else if (!strcmp(arg, "set") && i+1 < argc) {
 237                         cmd = CMD_SET;
 238                         ckey = argv[++i];
 239                         if (i+1 < argc)
 240                                 cvalue = argv[++i];
 241                 } else if (!strcmp(arg, "get") && i+1 < argc) {
 242                         cmd = CMD_GET;
 243                         ckey = argv[++i];
 244                 } else if (!strcmp(arg, "load") && i+1 < argc) {
 245                         if ((cport >= 0) || (cvlan >= 0))
 246                                 print_usage();
 247                         cmd = CMD_LOAD;
 248                         ckey = argv[++i];
 249                 } else if (!strcmp(arg, "show")) {
 250                         cmd = CMD_SHOW;
 251                 } else {
 252                         print_usage();
 253                 }
 254         }
 255
 256         if (cmd == CMD_NONE)
 257                 print_usage();
 258         if (cport > -1 && cvlan > -1)
 259                 print_usage();
 260
 261         dev = swlib_connect(cdev);
 262         if (!dev) {
 263                 fprintf(stderr, "Failed to connect to the switch\n");
 264                 return 1;
 265         }
 266
 267         swlib_scan(dev);
 268
 269         if (cmd == CMD_GET || cmd == CMD_SET) {
 270                 if(cport > -1)
 271                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_PORT, ckey);
 272                 else if(cvlan > -1)
 273                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, ckey);
 274                 else
 275                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_GLOBAL, ckey);
 276
 277                 if(!a)
 278                 {
 279                         fprintf(stderr, "Unknown attribute \"%s\"\n", ckey);
 280                         goto out;
 281                 }
 282         }
 283
 284         switch(cmd)
 285         {
 286         case CMD_SET:
 287                 if ((a->type != SWITCH_TYPE_NOVAL) &&
 288                                 (cvalue == NULL))
 289                         print_usage();
 290
 291                 if(cvlan > -1)
 292                         cport = cvlan;
 293
 294                 if(swlib_set_attr_string(dev, a, cport, cvalue) < 0)
 295                 {
 296                         fprintf(stderr, "failed\n");
 297                         retval = -1;
 298                         goto out;
 299                 }
 300                 break;
 301         case CMD_GET:
 302                 if(cvlan > -1)
 303                         val.port_vlan = cvlan;
 304                 if(cport > -1)
 305                         val.port_vlan = cport;
 306                 if(swlib_get_attr(dev, a, &val) < 0)
 307                 {
 308                         fprintf(stderr, "failed\n");
 309                         retval = -1;
 310                         goto out;
 311                 }
 312                 print_attr_val(a, &val);
 313                 putchar('\n');
 314                 break;
 315         case CMD_LOAD:
 316                 swconfig_load_uci(dev, ckey);
 317                 break;
 318         case CMD_HELP:
 319                 list_attributes(dev);
 320                 break;
 321         case CMD_SHOW:
 322                 if (cport >= 0 || cvlan >= 0) {
 323                         if (cport >= 0)
 324                                 show_port(dev, cport);
 325                         else
 326                                 show_vlan(dev, cvlan, false);
 327                 } else {
 328                         show_global(dev);
 329                         for (i=0; i < dev->ports; i++)
 330                                 show_port(dev, i);
 331                         for (i=0; i < dev->vlans; i++)
 332                                 show_vlan(dev, i, true);
 333                 }
 334                 break;
 335         }
 336
 337 out:
 338         swlib_free_all(dev);
 339         return 0;
 340 }