OpenWrt – Blame information for rev 2

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1 office 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 }