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("Switch %d: %s(%s), ports: %d, vlans: %d\n", dev->id, dev->dev_name, dev->name, dev->ports, 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)
 148 {
 149         struct switch_val val;
 150
 151         printf("VLAN %d:\n", vlan);
 152         val.port_vlan = vlan;
 153         show_attrs(dev, dev->vlan_ops, &val);
 154 }
 155
 156 static void
 157 print_usage(void)
 158 {
 159         printf("swconfig dev <dev> [port <port>|vlan <vlan>] (help|set <key> <value>|get <key>|load <config>|show)\n");
 160         exit(1);
 161 }
 162
 163 static void
 164 swconfig_load_uci(struct switch_dev *dev, const char *name)
 165 {
 166         struct uci_context *ctx;
 167         struct uci_package *p = NULL;
 168         struct uci_element *e;
 169         int ret = -1;
 170
 171         ctx = uci_alloc_context();
 172         if (!ctx)
 173                 return;
 174
 175         uci_load(ctx, name, &p);
 176         if (!p) {
 177                 uci_perror(ctx, "Failed to load config file: ");
 178                 goto out;
 179         }
 180
 181         ret = swlib_apply_from_uci(dev, p);
 182         if (ret < 0)
 183                 fprintf(stderr, "Failed to apply configuration for switch '%s'\n", dev->dev_name);
 184
 185 out:
 186         uci_free_context(ctx);
 187         exit(ret);
 188 }
 189
 190 int main(int argc, char **argv)
 191 {
 192         int retval = 0;
 193         struct switch_dev *dev;
 194         struct switch_attr *a;
 195         struct switch_val val;
 196         int err;
 197         int i;
 198
 199         struct switch_port *ports;
 200
 201         int cmd = CMD_NONE;
 202         char *cdev = NULL;
 203         int cport = -1;
 204         int cvlan = -1;
 205         char *ckey = NULL;
 206         char *cvalue = NULL;
 207
 208         if(argc < 4)
 209                 print_usage();
 210
 211         if(strcmp(argv[1], "dev"))
 212                 print_usage();
 213
 214         cdev = argv[2];
 215
 216         for(i = 3; i < argc; i++)
 217         {
 218                 char *arg = argv[i];
 219                 if (cmd != CMD_NONE) {
 220                         print_usage();
 221                 } else if (!strcmp(arg, "port") && i+1 < argc) {
 222                         cport = atoi(argv[++i]);
 223                 } else if (!strcmp(arg, "vlan") && i+1 < argc) {
 224                         cvlan = atoi(argv[++i]);
 225                 } else if (!strcmp(arg, "help")) {
 226                         cmd = CMD_HELP;
 227                 } else if (!strcmp(arg, "set") && i+1 < argc) {
 228                         cmd = CMD_SET;
 229                         ckey = argv[++i];
 230                         if (i+1 < argc)
 231                                 cvalue = argv[++i];
 232                 } else if (!strcmp(arg, "get") && i+1 < argc) {
 233                         cmd = CMD_GET;
 234                         ckey = argv[++i];
 235                 } else if (!strcmp(arg, "load") && i+1 < argc) {
 236                         if ((cport >= 0) || (cvlan >= 0))
 237                                 print_usage();
 238                         cmd = CMD_LOAD;
 239                         ckey = argv[++i];
 240                 } else if (!strcmp(arg, "show")) {
 241                         cmd = CMD_SHOW;
 242                 } else {
 243                         print_usage();
 244                 }
 245         }
 246
 247         if (cmd == CMD_NONE)
 248                 print_usage();
 249         if (cport > -1 && cvlan > -1)
 250                 print_usage();
 251
 252         dev = swlib_connect(cdev);
 253         if (!dev) {
 254                 fprintf(stderr, "Failed to connect to the switch\n");
 255                 return 1;
 256         }
 257
 258         ports = malloc(sizeof(struct switch_port) * dev->ports);
 259         memset(ports, 0, sizeof(struct switch_port) * dev->ports);
 260         swlib_scan(dev);
 261
 262         if (cmd == CMD_GET || cmd == CMD_SET) {
 263                 if(cport > -1)
 264                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_PORT, ckey);
 265                 else if(cvlan > -1)
 266                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, ckey);
 267                 else
 268                         a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_GLOBAL, ckey);
 269
 270                 if(!a)
 271                 {
 272                         fprintf(stderr, "Unknown attribute \"%s\"\n", ckey);
 273                         goto out;
 274                 }
 275         }
 276
 277         switch(cmd)
 278         {
 279         case CMD_SET:
 280                 if ((a->type != SWITCH_TYPE_NOVAL) &&
 281                                 (cvalue == NULL))
 282                         print_usage();
 283
 284                 if(cvlan > -1)
 285                         cport = cvlan;
 286
 287                 if(swlib_set_attr_string(dev, a, cport, cvalue) < 0)
 288                 {
 289                         fprintf(stderr, "failed\n");
 290                         retval = -1;
 291                         goto out;
 292                 }
 293                 break;
 294         case CMD_GET:
 295                 if(cvlan > -1)
 296                         val.port_vlan = cvlan;
 297                 if(cport > -1)
 298                         val.port_vlan = cport;
 299                 if(swlib_get_attr(dev, a, &val) < 0)
 300                 {
 301                         fprintf(stderr, "failed\n");
 302                         retval = -1;
 303                         goto out;
 304                 }
 305                 print_attr_val(a, &val);
 306                 putchar('\n');
 307                 break;
 308         case CMD_LOAD:
 309                 swconfig_load_uci(dev, ckey);
 310                 break;
 311         case CMD_HELP:
 312                 list_attributes(dev);
 313                 break;
 314         case CMD_SHOW:
 315                 if (cport >= 0 || cvlan >= 0) {
 316                         if (cport >= 0)
 317                                 show_port(dev, cport);
 318                         else
 319                                 show_vlan(dev, cvlan);
 320                 } else {
 321                         show_global(dev);
 322                         for (i=0; i < dev->ports; i++)
 323                                 show_port(dev, i);
 324                         for (i=0; i < dev->vlans; i++)
 325                                 show_vlan(dev, i);
 326                 }
 327                 break;
 328         }
 329
 330 out:
 331         swlib_free_all(dev);
 332         free(ports);
 333
 334         return 0;
 335 }