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[l2tpns.git] / cli.c
1 // L2TPNS Command Line Interface
2 // vim: sw=8 ts=8
3
4 char const *cvs_name = "$Name: $";
5 char const *cvs_id_cli = "$Id: cli.c,v 1.46 2005/01/10 07:17:37 bodea Exp $";
6
7 #include <stdio.h>
8 #include <stdarg.h>
9 #include <unistd.h>
10 #include <sys/file.h>
11 #include <sys/stat.h>
12 #include <syslog.h>
13 #include <malloc.h>
14 #include <string.h>
15 #include <ctype.h>
16 #include <stdlib.h>
17 #include <time.h>
18 #include <arpa/inet.h>
19 #include <errno.h>
20 #include <sys/socket.h>
21 #include <sys/types.h>
22 #include <signal.h>
23 #include <dlfcn.h>
24 #include <netdb.h>
25 #include <libcli.h>
26
27 #include "l2tpns.h"
28 #include "util.h"
29 #include "cluster.h"
30 #include "tbf.h"
31 #include "ll.h"
32 #ifdef BGP
33 #include "bgp.h"
34 #endif
35
36 extern tunnelt *tunnel;
37 extern sessiont *session;
38 extern radiust *radius;
39 extern ippoolt *ip_address_pool;
40 extern struct Tstats *_statistics;
41 static struct cli_def *cli = NULL;
42 extern configt *config;
43 extern config_descriptt config_values[];
44 #ifdef RINGBUFFER
45 extern struct Tringbuffer *ringbuffer;
46 #endif
47 extern struct cli_session_actions *cli_session_actions;
48 extern struct cli_tunnel_actions *cli_tunnel_actions;
49 extern tbft *filter_list;
50 extern ip_filtert *ip_filters;
51
52 static char *debug_levels[] = {
53 "CRIT",
54 "ERROR",
55 "WARN",
56 "INFO",
57 "CALL",
58 "DATA",
59 };
60
61 struct
62 {
63 char critical;
64 char error;
65 char warning;
66 char info;
67 char calls;
68 char data;
69 } debug_flags;
70
71 static int debug_session;
72 static int debug_tunnel;
73 static int debug_rb_tail;
74
75 static int cmd_show_session(struct cli_def *cli, char *command, char **argv, int argc);
76 static int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int argc);
77 static int cmd_show_users(struct cli_def *cli, char *command, char **argv, int argc);
78 static int cmd_show_radius(struct cli_def *cli, char *command, char **argv, int argc);
79 static int cmd_show_counters(struct cli_def *cli, char *command, char **argv, int argc);
80 static int cmd_show_version(struct cli_def *cli, char *command, char **argv, int argc);
81 static int cmd_show_pool(struct cli_def *cli, char *command, char **argv, int argc);
82 static int cmd_show_run(struct cli_def *cli, char *command, char **argv, int argc);
83 static int cmd_show_banana(struct cli_def *cli, char *command, char **argv, int argc);
84 static int cmd_show_plugins(struct cli_def *cli, char *command, char **argv, int argc);
85 static int cmd_show_throttle(struct cli_def *cli, char *command, char **argv, int argc);
86 static int cmd_write_memory(struct cli_def *cli, char *command, char **argv, int argc);
87 static int cmd_clear_counters(struct cli_def *cli, char *command, char **argv, int argc);
88 static int cmd_drop_user(struct cli_def *cli, char *command, char **argv, int argc);
89 static int cmd_drop_tunnel(struct cli_def *cli, char *command, char **argv, int argc);
90 static int cmd_drop_session(struct cli_def *cli, char *command, char **argv, int argc);
91 static int cmd_snoop(struct cli_def *cli, char *command, char **argv, int argc);
92 static int cmd_no_snoop(struct cli_def *cli, char *command, char **argv, int argc);
93 static int cmd_throttle(struct cli_def *cli, char *command, char **argv, int argc);
94 static int cmd_no_throttle(struct cli_def *cli, char *command, char **argv, int argc);
95 static int cmd_debug(struct cli_def *cli, char *command, char **argv, int argc);
96 static int cmd_no_debug(struct cli_def *cli, char *command, char **argv, int argc);
97 static int cmd_set(struct cli_def *cli, char *command, char **argv, int argc);
98 static int cmd_load_plugin(struct cli_def *cli, char *command, char **argv, int argc);
99 static int cmd_remove_plugin(struct cli_def *cli, char *command, char **argv, int argc);
100 static int cmd_uptime(struct cli_def *cli, char *command, char **argv, int argc);
101
102 static int regular_stuff(struct cli_def *cli);
103 static void parsemac(char *string, char mac[6]);
104
105 #ifdef BGP
106 #define MODE_CONFIG_BGP 8
107 static int cmd_router_bgp(struct cli_def *cli, char *command, char **argv, int argc);
108 static int cmd_router_bgp_neighbour(struct cli_def *cli, char *command, char **argv, int argc);
109 static int cmd_router_bgp_no_neighbour(struct cli_def *cli, char *command, char **argv, int argc);
110 static int cmd_show_bgp(struct cli_def *cli, char *command, char **argv, int argc);
111 static int cmd_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc);
112 static int cmd_no_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc);
113 static int cmd_restart_bgp(struct cli_def *cli, char *command, char **argv, int argc);
114 #endif /* BGP */
115
116 #define MODE_CONFIG_NACL 9
117 static int cmd_ip_access_list(struct cli_def *cli, char *command, char **argv, int argc);
118 static int cmd_no_ip_access_list(struct cli_def *cli, char *command, char **argv, int argc);
119 static int cmd_ip_access_list_rule(struct cli_def *cli, char *command, char **argv, int argc);
120 static int cmd_filter(struct cli_def *cli, char *command, char **argv, int argc);
121 static int cmd_no_filter(struct cli_def *cli, char *command, char **argv, int argc);
122 static int cmd_show_access_list(struct cli_def *cli, char *command, char **argv, int argc);
123
124 /* match if b is a substr of a */
125 #define MATCH(a,b) (!strncmp((a), (b), strlen(b)))
126
127 void init_cli(char *hostname)
128 {
129 FILE *f;
130 char buf[4096];
131 struct cli_command *c;
132 struct cli_command *c2;
133 int on = 1;
134 struct sockaddr_in addr;
135
136 cli = cli_init();
137 if (hostname && *hostname)
138 cli_set_hostname(cli, hostname);
139 else
140 cli_set_hostname(cli, "l2tpns");
141
142 c = cli_register_command(cli, NULL, "show", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL);
143 cli_register_command(cli, c, "banana", cmd_show_banana, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a banana");
144 #ifdef BGP
145 cli_register_command(cli, c, "bgp", cmd_show_bgp, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show BGP status");
146 #endif /* BGP */
147 cli_register_command(cli, c, "cluster", cmd_show_cluster, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show cluster information");
148 cli_register_command(cli, c, "ipcache", cmd_show_ipcache, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show contents of the IP cache");
149 cli_register_command(cli, c, "plugins", cmd_show_plugins, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "List all installed plugins");
150 cli_register_command(cli, c, "pool", cmd_show_pool, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show the IP address allocation pool");
151 cli_register_command(cli, c, "radius", cmd_show_radius, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show active radius queries");
152 cli_register_command(cli, c, "running-config", cmd_show_run, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show the currently running configuration");
153 cli_register_command(cli, c, "session", cmd_show_session, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a list of sessions or details for a single session");
154 cli_register_command(cli, c, "tbf", cmd_show_tbf, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "List all token bucket filters in use");
155 cli_register_command(cli, c, "throttle", cmd_show_throttle, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "List all throttled sessions and associated TBFs");
156 cli_register_command(cli, c, "tunnels", cmd_show_tunnels, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a list of tunnels or details for a single tunnel");
157 cli_register_command(cli, c, "users", cmd_show_users, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a list of all connected users or details of selected user");
158 cli_register_command(cli, c, "version", cmd_show_version, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show currently running software version");
159 cli_register_command(cli, c, "access-list", cmd_show_access_list, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show named access-list");
160
161 c2 = cli_register_command(cli, c, "histogram", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL);
162 cli_register_command(cli, c2, "idle", cmd_show_hist_idle, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show histogram of session idle times");
163 cli_register_command(cli, c2, "open", cmd_show_hist_open, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show histogram of session durations");
164
165 #ifdef STATISTICS
166 cli_register_command(cli, c, "counters", cmd_show_counters, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Display all the internal counters and running totals");
167
168 c = cli_register_command(cli, NULL, "clear", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL);
169 cli_register_command(cli, c, "counters", cmd_clear_counters, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Clear internal counters");
170 #endif
171
172 cli_register_command(cli, NULL, "uptime", cmd_uptime, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show uptime and bandwidth utilisation");
173
174 c = cli_register_command(cli, NULL, "write", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL);
175 cli_register_command(cli, c, "memory", cmd_write_memory, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Save the running config to flash");
176 cli_register_command(cli, c, "terminal", cmd_show_run, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show the running config");
177
178 cli_register_command(cli, NULL, "snoop", cmd_snoop, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Enable interception of a session");
179 cli_register_command(cli, NULL, "throttle", cmd_throttle, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Enable throttling of a session");
180 cli_register_command(cli, NULL, "filter", cmd_filter, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Add filtering to a session");
181 cli_register_command(cli, NULL, "debug", cmd_debug, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Set the level of logging that is shown on the console");
182
183 #ifdef BGP
184 c = cli_register_command(cli, NULL, "suspend", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL);
185 cli_register_command(cli, c, "bgp", cmd_suspend_bgp, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Withdraw routes from BGP neighbour");
186 #endif /* BGP */
187
188 c = cli_register_command(cli, NULL, "no", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL);
189 cli_register_command(cli, c, "snoop", cmd_no_snoop, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disable interception of a session");
190 cli_register_command(cli, c, "throttle", cmd_no_throttle, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disable throttling of a session");
191 cli_register_command(cli, c, "filter", cmd_no_filter, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Remove filtering from a session");
192 cli_register_command(cli, c, "debug", cmd_no_debug, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Turn off logging of a certain level of debugging");
193
194 #ifdef BGP
195 c2 = cli_register_command(cli, c, "suspend", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL);
196 cli_register_command(cli, c2, "bgp", cmd_no_suspend_bgp, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Advertise routes to BGP neighbour");
197
198 c = cli_register_command(cli, NULL, "restart", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL);
199 cli_register_command(cli, c, "bgp", cmd_restart_bgp, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Restart BGP");
200
201 c = cli_register_command(cli, NULL, "router", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL);
202 cli_register_command(cli, c, "bgp", cmd_router_bgp, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Configure BGP");
203
204 cli_register_command(cli, NULL, "neighbour", cmd_router_bgp_neighbour, PRIVILEGE_PRIVILEGED, MODE_CONFIG_BGP, "Configure BGP neighbour");
205
206 c = cli_register_command(cli, NULL, "no", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG_BGP, NULL);
207 cli_register_command(cli, c, "neighbour", cmd_router_bgp_no_neighbour, PRIVILEGE_PRIVILEGED, MODE_CONFIG_BGP, "Remove BGP neighbour");
208 #endif /* BGP */
209
210 c = cli_register_command(cli, NULL, "drop", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL);
211 cli_register_command(cli, c, "user", cmd_drop_user, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disconnect a user");
212 cli_register_command(cli, c, "tunnel", cmd_drop_tunnel, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disconnect a tunnel and all sessions on that tunnel");
213 cli_register_command(cli, c, "session", cmd_drop_session, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disconnect a session");
214
215 c = cli_register_command(cli, NULL, "load", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL);
216 cli_register_command(cli, c, "plugin", cmd_load_plugin, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Load a plugin");
217
218 c = cli_register_command(cli, NULL, "remove", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL);
219 cli_register_command(cli, c, "plugin", cmd_remove_plugin, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Remove a plugin");
220
221 cli_register_command(cli, NULL, "set", cmd_set, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Set a configuration variable");
222
223 c = cli_register_command(cli, NULL, "ip", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL);
224 cli_register_command(cli, c, "access-list", cmd_ip_access_list, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Add named access-list");
225
226 cli_register_command(cli, NULL, "permit", cmd_ip_access_list_rule, PRIVILEGE_PRIVILEGED, MODE_CONFIG_NACL, "Permit rule");
227 cli_register_command(cli, NULL, "deny", cmd_ip_access_list_rule, PRIVILEGE_PRIVILEGED, MODE_CONFIG_NACL, "Deny rule");
228
229 c = cli_register_command(cli, NULL, "no", NULL, PRIVILEGE_UNPRIVILEGED, MODE_CONFIG, NULL);
230 c2 = cli_register_command(cli, c, "ip", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL);
231 cli_register_command(cli, c2, "access-list", cmd_no_ip_access_list, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Remove named access-list");
232
233 // Enable regular processing
234 cli_regular(cli, regular_stuff);
235
236 if (!(f = fopen(CLIUSERS, "r")))
237 {
238 LOG(0, 0, 0, "WARNING! No users specified. Command-line access is open to all\n");
239 }
240 else
241 {
242 while (fgets(buf, 4096, f))
243 {
244 char *p;
245 if (*buf == '#') continue;
246 if ((p = strchr(buf, '\r'))) *p = 0;
247 if ((p = strchr(buf, '\n'))) *p = 0;
248 if (!*buf) continue;
249 if (!(p = strchr((char *)buf, ':'))) continue;
250 *p++ = 0;
251 if (!strcmp(buf, "enable"))
252 {
253 cli_allow_enable(cli, p);
254 LOG(3, 0, 0, "Setting enable password\n");
255 }
256 else
257 {
258 cli_allow_user(cli, buf, p);
259 LOG(3, 0, 0, "Allowing user %s to connect to the CLI\n", buf);
260 }
261 }
262 fclose(f);
263 }
264
265 memset(&addr, 0, sizeof(addr));
266 clifd = socket(PF_INET, SOCK_STREAM, 6);
267 setsockopt(clifd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
268 {
269 int flags;
270 // Set cli fd as non-blocking
271 flags = fcntl(clifd, F_GETFL, 0);
272 fcntl(clifd, F_SETFL, flags | O_NONBLOCK);
273 }
274 addr.sin_family = AF_INET;
275 addr.sin_port = htons(23);
276 if (bind(clifd, (void *) &addr, sizeof(addr)) < 0)
277 {
278 LOG(0, 0, 0, "Error listening on cli port 23: %s\n", strerror(errno));
279 return;
280 }
281 listen(clifd, 10);
282 }
283
284 void cli_do(int sockfd)
285 {
286 int require_auth = 1;
287 struct sockaddr_in addr;
288 int l = sizeof(addr);
289
290 if (fork_and_close()) return;
291 if (getpeername(sockfd, (struct sockaddr *)&addr, &l) == 0)
292 {
293 LOG(3, 0, 0, "Accepted connection to CLI from %s\n", fmtaddr(addr.sin_addr.s_addr, 0));
294 require_auth = addr.sin_addr.s_addr != inet_addr("127.0.0.1");
295 }
296 else
297 LOG(0, 0, 0, "getpeername() failed on cli socket. Requiring authentication: %s\n", strerror(errno));
298
299 if (require_auth)
300 {
301 LOG(3, 0, 0, "CLI is remote, requiring authentication\n");
302 if (!cli->users) /* paranoia */
303 {
304 LOG(0, 0, 0, "No users for remote authentication! Exiting CLI\n");
305 exit(0);
306 }
307 }
308 else
309 {
310 /* no username/pass required */
311 cli->users = 0;
312 }
313
314 debug_session = 0;
315 debug_tunnel = 0;
316 #ifdef RINGBUFFER
317 debug_rb_tail = ringbuffer->tail;
318 #endif
319 memset(&debug_flags, 0, sizeof(debug_flags));
320 debug_flags.critical = 1;
321
322 cli_loop(cli, sockfd);
323
324 close(sockfd);
325 LOG(3, 0, 0, "Closed CLI connection from %s\n", fmtaddr(addr.sin_addr.s_addr, 0));
326 exit(0);
327 }
328
329 static void cli_print_log(struct cli_def *cli, char *string)
330 {
331 LOG(3, 0, 0, "%s\n", string);
332 }
333
334 void cli_do_file(FILE *fh)
335 {
336 LOG(3, 0, 0, "Reading configuration file\n");
337 cli_print_callback(cli, cli_print_log);
338 cli_file(cli, fh, PRIVILEGE_PRIVILEGED, MODE_CONFIG);
339 cli_print_callback(cli, NULL);
340 }
341
342 int cli_arg_help(struct cli_def *cli, int cr_ok, char *entry, ...)
343 {
344 va_list ap;
345 char *desc;
346 char buf[16];
347 char *p;
348
349 va_start(ap, entry);
350 while (entry)
351 {
352 /* allow one %d */
353 if ((p = strchr(entry, '%')) && !strchr(p+1, '%') && p[1] == 'd')
354 {
355 int v = va_arg(ap, int);
356 snprintf(buf, sizeof(buf), entry, v);
357 p = buf;
358 }
359 else
360 p = entry;
361
362 desc = va_arg(ap, char *);
363 if (desc && *desc)
364 cli_print(cli, " %-20s %s", p, desc);
365 else
366 cli_print(cli, " %s", p);
367
368 entry = desc ? va_arg(ap, char *) : 0;
369 }
370
371 va_end(ap);
372 if (cr_ok)
373 cli_print(cli, " <cr>");
374
375 return CLI_OK;
376 }
377
378 static int cmd_show_session(struct cli_def *cli, char *command, char **argv, int argc)
379 {
380 int i;
381
382 if (CLI_HELP_REQUESTED)
383 return cli_arg_help(cli, 1,
384 "<1-%d>", MAXSESSION-1, "Show specific session by id",
385 NULL);
386
387 time(&time_now);
388 if (argc > 0)
389 {
390 // Show individual session
391 for (i = 0; i < argc; i++)
392 {
393 unsigned int s, b_in, b_out;
394 s = atoi(argv[i]);
395 if (s <= 0 || s >= MAXSESSION)
396 {
397 cli_print(cli, "Invalid session id \"%s\"", argv[i]);
398 continue;
399 }
400 cli_print(cli, "\r\nSession %d:", s);
401 cli_print(cli, "\tUser:\t\t%s", session[s].user[0] ? session[s].user : "none");
402 cli_print(cli, "\tCalling Num:\t%s", session[s].calling);
403 cli_print(cli, "\tCalled Num:\t%s", session[s].called);
404 cli_print(cli, "\tTunnel ID:\t%d", session[s].tunnel);
405 cli_print(cli, "\tIP address:\t%s", fmtaddr(htonl(session[s].ip), 0));
406 cli_print(cli, "\tUnique SID:\t%lu", session[s].unique_id);
407 cli_print(cli, "\tIdle time:\t%u seconds", abs(time_now - session[s].last_packet));
408 cli_print(cli, "\tNext Recv:\t%u", session[s].nr);
409 cli_print(cli, "\tNext Send:\t%u", session[s].ns);
410 cli_print(cli, "\tBytes In/Out:\t%u/%u", session[s].total_cout, session[s].total_cin);
411 cli_print(cli, "\tPkts In/Out:\t%u/%u", session[s].pout, session[s].pin);
412 cli_print(cli, "\tMRU:\t\t%d", session[s].mru);
413 cli_print(cli, "\tRadius Session:\t%u", session[s].radius);
414 cli_print(cli, "\tRx Speed:\t%u", session[s].rx_connect_speed);
415 cli_print(cli, "\tTx Speed:\t%u", session[s].tx_connect_speed);
416 if (session[s].filter_in && session[s].filter_in <= MAXFILTER)
417 cli_print(cli, "\tFilter in:\t%u (%s)", session[s].filter_in, ip_filters[session[s].filter_in - 1].name);
418 if (session[s].filter_out && session[s].filter_out <= MAXFILTER)
419 cli_print(cli, "\tFilter out:\t%u (%s)", session[s].filter_out, ip_filters[session[s].filter_out - 1].name);
420 if (session[s].snoop_ip && session[s].snoop_port)
421 cli_print(cli, "\tIntercepted:\t%s:%d", fmtaddr(session[s].snoop_ip, 0), session[s] .snoop_port);
422 else
423 cli_print(cli, "\tIntercepted:\tno");
424
425 cli_print(cli, "\tWalled Garden:\t%s", session[s].walled_garden ? "YES" : "no");
426 {
427 int t = (session[s].throttle_in || session[s].throttle_out);
428 cli_print(cli, "\tThrottled:\t%s%s%.0d%s%s%.0d%s%s",
429 t ? "YES" : "no", t ? " (" : "",
430 session[s].throttle_in, session[s].throttle_in ? "kbps" : t ? "-" : "",
431 t ? "/" : "",
432 session[s].throttle_out, session[s].throttle_out ? "kbps" : t ? "-" : "",
433 t ? ")" : "");
434 }
435
436 b_in = session[s].tbf_in;
437 b_out = session[s].tbf_out;
438 if (b_in || b_out)
439 cli_print(cli, "\t\t\t%5s %6s %6s | %7s %7s %8s %8s %8s %8s",
440 "Rate", "Credit", "Queued", "ByteIn", "PackIn",
441 "ByteSent", "PackSent", "PackDrop", "PackDelay");
442
443 if (b_in)
444 cli_print(cli, "\tTBFI#%d%1s%s\t%5d %6d %6d | %7d %7d %8d %8d %8d %8d",
445 b_in,
446 (filter_list[b_in].next ? "*" : " "),
447 (b_in < 100 ? "\t" : ""),
448 filter_list[b_in].rate * 8,
449 filter_list[b_in].credit,
450 filter_list[b_in].queued,
451 filter_list[b_in].b_queued,
452 filter_list[b_in].p_queued,
453 filter_list[b_in].b_sent,
454 filter_list[b_in].p_sent,
455 filter_list[b_in].p_dropped,
456 filter_list[b_in].p_delayed);
457
458 if (b_out)
459 cli_print(cli, "\tTBFO#%d%1s%s\t%5d %6d %6d | %7d %7d %8d %8d %8d %8d",
460 b_out,
461 (filter_list[b_out].next ? "*" : " "),
462 (b_out < 100 ? "\t" : ""),
463 filter_list[b_out].rate * 8,
464 filter_list[b_out].credit,
465 filter_list[b_out].queued,
466 filter_list[b_out].b_queued,
467 filter_list[b_out].p_queued,
468 filter_list[b_out].b_sent,
469 filter_list[b_out].p_sent,
470 filter_list[b_out].p_dropped,
471 filter_list[b_out].p_delayed);
472
473 }
474 return CLI_OK;
475 }
476
477 // Show Summary
478 cli_print(cli, "%5s %4s %-32s %-15s %s %s %s %10s %10s %10s %4s %-15s %s",
479 "SID",
480 "TID",
481 "Username",
482 "IP",
483 "I",
484 "T",
485 "G",
486 "opened",
487 "downloaded",
488 "uploaded",
489 "idle",
490 "LAC",
491 "CLI");
492
493 for (i = 1; i < MAXSESSION; i++)
494 {
495 if (!session[i].opened) continue;
496 cli_print(cli, "%5d %4d %-32s %-15s %s %s %s %10u %10lu %10lu %4u %-15s %s",
497 i,
498 session[i].tunnel,
499 session[i].user[0] ? session[i].user : "*",
500 fmtaddr(htonl(session[i].ip), 0),
501 (session[i].snoop_ip && session[i].snoop_port) ? "Y" : "N",
502 (session[i].throttle_in || session[i].throttle_out) ? "Y" : "N",
503 (session[i].walled_garden) ? "Y" : "N",
504 abs(time_now - (unsigned long)session[i].opened),
505 (unsigned long)session[i].total_cout,
506 (unsigned long)session[i].total_cin,
507 abs(time_now - (session[i].last_packet ? session[i].last_packet : time_now)),
508 fmtaddr(htonl(tunnel[ session[i].tunnel ].ip), 1),
509 session[i].calling[0] ? session[i].calling : "*");
510 }
511 return CLI_OK;
512 }
513
514 static int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int argc)
515 {
516 int i, x, show_all = 0;
517 char *states[] = {
518 "Free",
519 "Open",
520 "Closing",
521 "Opening",
522 };
523
524 if (CLI_HELP_REQUESTED)
525 {
526 if (argc > 1)
527 return cli_arg_help(cli, 1,
528 "<1-%d>", MAXTUNNEL-1, "Show specific tunnel by id",
529 NULL);
530
531 return cli_arg_help(cli, 1,
532 "all", "Show all tunnels, including unused",
533 "<1-%d>", MAXTUNNEL-1, "Show specific tunnel by id",
534 NULL);
535 }
536
537 time(&time_now);
538 if (argc > 0)
539 {
540 if (strcmp(argv[0], "all") == 0)
541 {
542 show_all = 1;
543 }
544 else
545 {
546 // Show individual tunnel
547 for (i = 0; i < argc; i++)
548 {
549 char s[65535] = {0};
550 unsigned int t;
551 t = atoi(argv[i]);
552 if (t <= 0 || t >= MAXTUNNEL)
553 {
554 cli_print(cli, "Invalid tunnel id \"%s\"", argv[i]);
555 continue;
556 }
557 cli_print(cli, "\r\nTunnel %d:", t);
558 cli_print(cli, "\tState:\t\t%s", states[tunnel[t].state]);
559 cli_print(cli, "\tHostname:\t%s", tunnel[t].hostname[0] ? tunnel[t].hostname : "(none)");
560 cli_print(cli, "\tRemote IP:\t%s", fmtaddr(htonl(tunnel[t].ip), 0));
561 cli_print(cli, "\tRemote Port:\t%d", tunnel[t].port);
562 cli_print(cli, "\tRx Window:\t%u", tunnel[t].window);
563 cli_print(cli, "\tNext Recv:\t%u", tunnel[t].nr);
564 cli_print(cli, "\tNext Send:\t%u", tunnel[t].ns);
565 cli_print(cli, "\tQueue Len:\t%u", tunnel[t].controlc);
566 cli_print(cli, "\tLast Packet Age:%u", (unsigned)(time_now - tunnel[t].last));
567
568 for (x = 0; x < MAXSESSION; x++)
569 if (session[x].tunnel == t && session[x].opened && !session[x].die)
570 sprintf(s, "%s%u ", s, x);
571
572 cli_print(cli, "\tSessions:\t%s", s);
573 }
574 return CLI_OK;
575 }
576 }
577
578 // Show tunnel summary
579 cli_print(cli, "%4s %20s %20s %6s %s",
580 "TID",
581 "Hostname",
582 "IP",
583 "State",
584 "Sessions");
585
586 for (i = 1; i < MAXTUNNEL; i++)
587 {
588 int sessions = 0;
589 if (!show_all && (!tunnel[i].ip || tunnel[i].die)) continue;
590
591 for (x = 0; x < MAXSESSION; x++) if (session[x].tunnel == i && session[x].opened && !session[x].die) sessions++;
592 cli_print(cli, "%4d %20s %20s %6s %6d",
593 i,
594 *tunnel[i].hostname ? tunnel[i].hostname : "(null)",
595 fmtaddr(htonl(tunnel[i].ip), 0),
596 states[tunnel[i].state],
597 sessions);
598 }
599
600 return CLI_OK;
601 }
602
603 static int cmd_show_users(struct cli_def *cli, char *command, char **argv, int argc)
604 {
605 char sid[32][8];
606 char *sargv[32];
607 int sargc = 0;
608 int i;
609
610 if (CLI_HELP_REQUESTED)
611 return cli_arg_help(cli, 1,
612 "USER", "Show details for specific username",
613 NULL);
614
615 for (i = 0; i < MAXSESSION; i++)
616 {
617 if (!session[i].opened) continue;
618 if (!session[i].user[0]) continue;
619 if (argc > 0)
620 {
621 int j;
622 for (j = 0; j < argc && sargc < 32; j++)
623 {
624 if (strcmp(argv[j], session[i].user) == 0)
625 {
626 snprintf(sid[sargc], sizeof(sid[0]), "%d", i);
627 sargv[sargc] = sid[sargc];
628 sargc++;
629 }
630 }
631
632 continue;
633 }
634
635 cli_print(cli, "%s", session[i].user);
636 }
637
638 if (sargc > 0)
639 return cmd_show_session(cli, "users", sargv, sargc);
640
641 return CLI_OK;
642 }
643
644 static int cmd_show_counters(struct cli_def *cli, char *command, char **argv, int argc)
645 {
646 if (CLI_HELP_REQUESTED)
647 return CLI_HELP_NO_ARGS;
648
649 cli_print(cli, "%-10s %10s %8s %8s %8s", "Ethernet", "Bytes", "Packets", "Errors", "Dropped");
650 cli_print(cli, "%-10s %10u %8u %8u %8u", "RX",
651 GET_STAT(tun_rx_bytes),
652 GET_STAT(tun_rx_packets),
653 GET_STAT(tun_rx_errors),
654 GET_STAT(tun_rx_dropped));
655 cli_print(cli, "%-10s %10u %8u %8u", "TX",
656 GET_STAT(tun_tx_bytes),
657 GET_STAT(tun_tx_packets),
658 GET_STAT(tun_tx_errors));
659 cli_print(cli, "");
660
661 cli_print(cli, "%-10s %10s %8s %8s %8s", "Tunnel", "Bytes", "Packets", "Errors", "Retries");
662 cli_print(cli, "%-10s %10u %8u %8u", "RX",
663 GET_STAT(tunnel_rx_bytes),
664 GET_STAT(tunnel_rx_packets),
665 GET_STAT(tunnel_rx_errors));
666 cli_print(cli, "%-10s %10u %8u %8u %8u", "TX",
667 GET_STAT(tunnel_tx_bytes),
668 GET_STAT(tunnel_tx_packets),
669 GET_STAT(tunnel_tx_errors),
670 GET_STAT(tunnel_retries));
671 cli_print(cli, "");
672
673 cli_print(cli, "%-30s%-10s", "Counter", "Value");
674 cli_print(cli, "-----------------------------------------");
675 cli_print(cli, "%-30s%u", "radius_retries", GET_STAT(radius_retries));
676 cli_print(cli, "%-30s%u", "arp_sent", GET_STAT(arp_sent));
677 cli_print(cli, "%-30s%u", "packets_snooped", GET_STAT(packets_snooped));
678 cli_print(cli, "%-30s%u", "tunnel_created", GET_STAT(tunnel_created));
679 cli_print(cli, "%-30s%u", "session_created", GET_STAT(session_created));
680 cli_print(cli, "%-30s%u", "tunnel_timeout", GET_STAT(tunnel_timeout));
681 cli_print(cli, "%-30s%u", "session_timeout", GET_STAT(session_timeout));
682 cli_print(cli, "%-30s%u", "radius_timeout", GET_STAT(radius_timeout));
683 cli_print(cli, "%-30s%u", "radius_overflow", GET_STAT(radius_overflow));
684 cli_print(cli, "%-30s%u", "tunnel_overflow", GET_STAT(tunnel_overflow));
685 cli_print(cli, "%-30s%u", "session_overflow", GET_STAT(session_overflow));
686 cli_print(cli, "%-30s%u", "ip_allocated", GET_STAT(ip_allocated));
687 cli_print(cli, "%-30s%u", "ip_freed", GET_STAT(ip_freed));
688 cli_print(cli, "%-30s%u", "cluster_forwarded", GET_STAT(c_forwarded));
689 cli_print(cli, "%-30s%u", "recv_forward", GET_STAT(recv_forward));
690 cli_print(cli, "%-30s%u", "select_called", GET_STAT(select_called));
691 cli_print(cli, "%-30s%u", "multi_read_used", GET_STAT(multi_read_used));
692 cli_print(cli, "%-30s%u", "multi_read_exceeded", GET_STAT(multi_read_exceeded));
693
694
695 #ifdef STATISTICS
696 cli_print(cli, "\n%-30s%-10s", "Counter", "Value");
697 cli_print(cli, "-----------------------------------------");
698 cli_print(cli, "%-30s%u", "call_processtun", GET_STAT(call_processtun));
699 cli_print(cli, "%-30s%u", "call_processipout", GET_STAT(call_processipout));
700 cli_print(cli, "%-30s%u", "call_processudp", GET_STAT(call_processudp));
701 cli_print(cli, "%-30s%u", "call_processpap", GET_STAT(call_processpap));
702 cli_print(cli, "%-30s%u", "call_processchap", GET_STAT(call_processchap));
703 cli_print(cli, "%-30s%u", "call_processlcp", GET_STAT(call_processlcp));
704 cli_print(cli, "%-30s%u", "call_processipcp", GET_STAT(call_processipcp));
705 cli_print(cli, "%-30s%u", "call_processipin", GET_STAT(call_processipin));
706 cli_print(cli, "%-30s%u", "call_processccp", GET_STAT(call_processccp));
707 cli_print(cli, "%-30s%u", "call_processrad", GET_STAT(call_processrad));
708 cli_print(cli, "%-30s%u", "call_sendarp", GET_STAT(call_sendarp));
709 cli_print(cli, "%-30s%u", "call_sendipcp", GET_STAT(call_sendipcp));
710 cli_print(cli, "%-30s%u", "call_sendchap", GET_STAT(call_sendchap));
711 cli_print(cli, "%-30s%u", "call_sessionbyip", GET_STAT(call_sessionbyip));
712 cli_print(cli, "%-30s%u", "call_sessionbyuser", GET_STAT(call_sessionbyuser));
713 cli_print(cli, "%-30s%u", "call_tunnelsend", GET_STAT(call_tunnelsend));
714 cli_print(cli, "%-30s%u", "call_tunnelkill", GET_STAT(call_tunnelkill));
715 cli_print(cli, "%-30s%u", "call_tunnelshutdown", GET_STAT(call_tunnelshutdown));
716 cli_print(cli, "%-30s%u", "call_sessionkill", GET_STAT(call_sessionkill));
717 cli_print(cli, "%-30s%u", "call_sessionshutdown", GET_STAT(call_sessionshutdown));
718 cli_print(cli, "%-30s%u", "call_sessionsetup", GET_STAT(call_sessionsetup));
719 cli_print(cli, "%-30s%u", "call_assign_ip_address", GET_STAT(call_assign_ip_address));
720 cli_print(cli, "%-30s%u", "call_free_ip_address", GET_STAT(call_free_ip_address));
721 cli_print(cli, "%-30s%u", "call_dump_acct_info", GET_STAT(call_dump_acct_info));
722 cli_print(cli, "%-30s%u", "call_radiussend", GET_STAT(call_radiussend));
723 cli_print(cli, "%-30s%u", "call_radiusretry", GET_STAT(call_radiusretry));
724 cli_print(cli, "%-30s%u", "call_random_data", GET_STAT(call_random_data));
725 #endif
726 return CLI_OK;
727 }
728
729 static int cmd_show_version(struct cli_def *cli, char *command, char **argv, int argc)
730 {
731 int tag = 0;
732 int file = 0;
733 int i = 0;
734
735 if (CLI_HELP_REQUESTED)
736 return cli_arg_help(cli, 1,
737 "tag", "Include CVS release tag",
738 "file", "Include file versions",
739 NULL);
740
741 for (i = 0; i < argc; i++)
742 if (!strcmp(argv[i], "tag"))
743 tag++;
744 else if (!strcmp(argv[i], "file"))
745 file++;
746
747 cli_print(cli, "L2TPNS %s", VERSION);
748 if (tag)
749 {
750 char const *p = strchr(cvs_name, ':');
751 char const *e;
752 if (p)
753 {
754 p++;
755 while (isspace(*p))
756 p++;
757 }
758
759 if (!p || *p == '$')
760 p = "HEAD";
761
762 e = strpbrk(p, " \t$");
763 cli_print(cli, "Tag: %.*s", (int) (e ? e - p + 1 : strlen(p)), p);
764 }
765
766 if (file)
767 {
768 extern linked_list *loaded_plugins;
769 void *p;
770
771 cli_print(cli, "Files:");
772 cli_print(cli, " %s", cvs_id_arp);
773 #ifdef BGP
774 cli_print(cli, " %s", cvs_id_bgp);
775 #endif /* BGP */
776 cli_print(cli, " %s", cvs_id_cli);
777 cli_print(cli, " %s", cvs_id_cluster);
778 cli_print(cli, " %s", cvs_id_constants);
779 cli_print(cli, " %s", cvs_id_control);
780 cli_print(cli, " %s", cvs_id_icmp);
781 cli_print(cli, " %s", cvs_id_l2tpns);
782 cli_print(cli, " %s", cvs_id_ll);
783 cli_print(cli, " %s", cvs_id_md5);
784 cli_print(cli, " %s", cvs_id_ppp);
785 cli_print(cli, " %s", cvs_id_radius);
786 cli_print(cli, " %s", cvs_id_tbf);
787 cli_print(cli, " %s", cvs_id_util);
788
789 ll_reset(loaded_plugins);
790 while ((p = ll_next(loaded_plugins)))
791 {
792 char const **id = dlsym(p, "cvs_id");
793 if (id)
794 cli_print(cli, " %s", *id);
795 }
796 }
797
798 return CLI_OK;
799 }
800
801 static int cmd_show_pool(struct cli_def *cli, char *command, char **argv, int argc)
802 {
803 int i;
804 int used = 0, free = 0, show_all = 0;
805
806 if (!config->cluster_iam_master)
807 {
808 cli_print(cli, "Can't do this on a slave. Do it on %s",
809 fmtaddr(config->cluster_master_address, 0));
810
811 return CLI_OK;
812 }
813
814 if (CLI_HELP_REQUESTED)
815 {
816 if (argc > 1)
817 return cli_arg_help(cli, 1, NULL);
818
819 return cli_arg_help(cli, 1,
820 "all", "Show all pool addresses, including unused",
821 NULL);
822 }
823
824 if (argc > 0 && strcmp(argv[0], "all") == 0)
825 show_all = 1;
826
827 time(&time_now);
828 cli_print(cli, "%-15s %4s %8s %s", "IP Address", "Used", "Session", "User");
829 for (i = 0; i < MAXIPPOOL; i++)
830 {
831 if (!ip_address_pool[i].address) continue;
832 if (ip_address_pool[i].assigned)
833 {
834 cli_print(cli, "%-15s\tY %8d %s",
835 fmtaddr(htonl(ip_address_pool[i].address), 0),
836 ip_address_pool[i].session,
837 session[ip_address_pool[i].session].user);
838
839 used++;
840 }
841 else
842 {
843 if (ip_address_pool[i].last)
844 cli_print(cli, "%-15s\tN %8s [%s] %ds",
845 fmtaddr(htonl(ip_address_pool[i].address), 0), "",
846 ip_address_pool[i].user, (int) time_now - ip_address_pool[i].last);
847
848 else if (show_all)
849 cli_print(cli, "%-15s\tN", fmtaddr(htonl(ip_address_pool[i].address), 0));
850
851 free++;
852 }
853 }
854
855 if (!show_all)
856 cli_print(cli, "(Not displaying unused addresses)");
857
858 cli_print(cli, "\r\nFree: %d\r\nUsed: %d", free, used);
859 return CLI_OK;
860 }
861
862 static FILE *save_config_fh = 0;
863 static void print_save_config(struct cli_def *cli, char *string)
864 {
865 if (save_config_fh)
866 fprintf(save_config_fh, "%s\n", string);
867 }
868
869 static int cmd_write_memory(struct cli_def *cli, char *command, char **argv, int argc)
870 {
871 if (CLI_HELP_REQUESTED)
872 return CLI_HELP_NO_ARGS;
873
874 if ((save_config_fh = fopen(config->config_file, "w")))
875 {
876 cli_print(cli, "Writing configuration");
877 cli_print_callback(cli, print_save_config);
878 cmd_show_run(cli, command, argv, argc);
879 cli_print_callback(cli, NULL);
880 fclose(save_config_fh);
881 save_config_fh = 0;
882 }
883 else
884 {
885 cli_print(cli, "Error writing configuration: %s", strerror(errno));
886 }
887 return CLI_OK;
888 }
889
890 static char const *show_access_list_rule(int extended, ip_filter_rulet *rule);
891
892 static int cmd_show_run(struct cli_def *cli, char *command, char **argv, int argc)
893 {
894 int i;
895 char ipv6addr[INET6_ADDRSTRLEN];
896
897 if (CLI_HELP_REQUESTED)
898 return CLI_HELP_NO_ARGS;
899
900 cli_print(cli, "# Current configuration:");
901
902 for (i = 0; config_values[i].key; i++)
903 {
904 void *value = ((void *)config) + config_values[i].offset;
905 if (config_values[i].type == STRING)
906 cli_print(cli, "set %s \"%.*s\"", config_values[i].key, config_values[i].size, (char *) value);
907 else if (config_values[i].type == IPv4)
908 cli_print(cli, "set %s %s", config_values[i].key, fmtaddr(*(in_addr_t *) value, 0));
909 else if (config_values[i].type == IPv6)
910 cli_print(cli, "set %s %s", config_values[i].key, inet_ntop(AF_INET6, value, ipv6addr, INET6_ADDRSTRLEN));
911 else if (config_values[i].type == SHORT)
912 cli_print(cli, "set %s %hu", config_values[i].key, *(short *) value);
913 else if (config_values[i].type == BOOL)
914 cli_print(cli, "set %s %s", config_values[i].key, (*(int *) value) ? "yes" : "no");
915 else if (config_values[i].type == INT)
916 cli_print(cli, "set %s %d", config_values[i].key, *(int *) value);
917 else if (config_values[i].type == UNSIGNED_LONG)
918 cli_print(cli, "set %s %lu", config_values[i].key, *(unsigned long *) value);
919 else if (config_values[i].type == MAC)
920 cli_print(cli, "set %s %02x%02x.%02x%02x.%02x%02x", config_values[i].key,
921 *(unsigned short *) (value + 0),
922 *(unsigned short *) (value + 1),
923 *(unsigned short *) (value + 2),
924 *(unsigned short *) (value + 3),
925 *(unsigned short *) (value + 4),
926 *(unsigned short *) (value + 5));
927 }
928
929 cli_print(cli, "# Plugins");
930 for (i = 0; i < MAXPLUGINS; i++)
931 {
932 if (*config->plugins[i])
933 {
934 cli_print(cli, "load plugin \"%s\"", config->plugins[i]);
935 }
936 }
937
938 #ifdef BGP
939 if (config->as_number)
940 {
941 int k;
942 int h;
943
944 cli_print(cli, "# BGP");
945 cli_print(cli, "router bgp %u", config->as_number);
946 for (i = 0; i < BGP_NUM_PEERS; i++)
947 {
948 if (!config->neighbour[i].name[0])
949 continue;
950
951 cli_print(cli, " neighbour %s remote-as %u", config->neighbour[i].name, config->neighbour[i].as);
952
953 k = config->neighbour[i].keepalive;
954 h = config->neighbour[i].hold;
955
956 if (k == -1)
957 {
958 if (h == -1)
959 continue;
960
961 k = BGP_KEEPALIVE_TIME;
962 }
963
964 if (h == -1)
965 h = BGP_HOLD_TIME;
966
967 cli_print(cli, " neighbour %s timers %d %d", config->neighbour[i].name, k, h);
968 }
969 }
970 #endif
971
972 cli_print(cli, "# Filters");
973 for (i = 0; i < MAXFILTER; i++)
974 {
975 ip_filter_rulet *rules;
976 if (!*ip_filters[i].name)
977 continue;
978
979 cli_print(cli, "ip access-list %s %s",
980 ip_filters[i].extended ? "extended" : "standard",
981 ip_filters[i].name);
982
983 rules = ip_filters[i].rules;
984 while (rules->action)
985 cli_print(cli, "%s", show_access_list_rule(ip_filters[i].extended, rules++));
986 }
987
988 cli_print(cli, "# end");
989 return CLI_OK;
990 }
991
992 static int cmd_show_radius(struct cli_def *cli, char *command, char **argv, int argc)
993 {
994 int i, free = 0, used = 0, show_all = 0;
995 char *states[] = {
996 "NULL",
997 "CHAP",
998 "AUTH",
999 "IPCP",
1000 "START",
1001 "STOP",
1002 "WAIT",
1003 };
1004
1005 if (CLI_HELP_REQUESTED)
1006 {
1007 if (argc > 1)
1008 return cli_arg_help(cli, 1, NULL);
1009
1010 return cli_arg_help(cli, 1,
1011 "all", "Show all RADIUS sessions, including unused",
1012 NULL);
1013 }
1014
1015 cli_print(cli, "%6s%7s%5s%6s%9s%9s%4s", "ID", "Radius", "Sock", "State", "Session", "Retry", "Try");
1016
1017 time(&time_now);
1018
1019 if (argc > 0 && strcmp(argv[0], "all") == 0)
1020 show_all = 1;
1021
1022 for (i = 1; i < MAXRADIUS; i++)
1023 {
1024 if (radius[i].state == RADIUSNULL)
1025 free++;
1026 else
1027 used++;
1028
1029 if (!show_all && radius[i].state == RADIUSNULL) continue;
1030
1031 cli_print(cli, "%6d%7d%5d%6s%9d%9u%4d",
1032 i,
1033 i >> RADIUS_SHIFT,
1034 i & RADIUS_MASK,
1035 states[radius[i].state],
1036 radius[i].session,
1037 radius[i].retry,
1038 radius[i].try);
1039 }
1040
1041 cli_print(cli, "\r\nFree: %d\r\nUsed: %d", free, used);
1042
1043 return CLI_OK;
1044 }
1045
1046 static int cmd_show_plugins(struct cli_def *cli, char *command, char **argv, int argc)
1047 {
1048 int i;
1049
1050 if (CLI_HELP_REQUESTED)
1051 return CLI_HELP_NO_ARGS;
1052
1053 cli_print(cli, "Plugins currently loaded:");
1054 for (i = 0; i < MAXPLUGINS; i++)
1055 if (*config->plugins[i])
1056 cli_print(cli, " %s", config->plugins[i]);
1057
1058 return CLI_OK;
1059 }
1060
1061 static int cmd_show_throttle(struct cli_def *cli, char *command, char **argv, int argc)
1062 {
1063 int i;
1064
1065 if (CLI_HELP_REQUESTED)
1066 return CLI_HELP_NO_ARGS;
1067
1068 cli_print(cli, "%5s %4s %-32s %7s %6s %6s %6s",
1069 "SID",
1070 "TID",
1071 "Username",
1072 "Rate In",
1073 "Out",
1074 "TBFI",
1075 "TBFO");
1076
1077 for (i = 0; i < MAXSESSION; i++)
1078 {
1079 if (session[i].throttle_in || session[i].throttle_out)
1080 cli_print(cli, "%5d %4d %-32s %6d %6d %6d %6d",
1081 i,
1082 session[i].tunnel,
1083 session[i].user,
1084 session[i].throttle_in,
1085 session[i].throttle_out,
1086 session[i].tbf_in,
1087 session[i].tbf_out);
1088 }
1089
1090 return CLI_OK;
1091 }
1092
1093 static int cmd_show_banana(struct cli_def *cli, char *command, char **argv, int argc)
1094 {
1095 if (CLI_HELP_REQUESTED)
1096 return CLI_HELP_NO_ARGS;
1097
1098 cli_print(cli, " _\n"
1099 "//\\\n"
1100 "V \\\n"
1101 " \\ \\_\n"
1102 " \\,'.`-.\n"
1103 " |\\ `. `.\n"
1104 " ( \\ `. `-. _,.-:\\\n"
1105 " \\ \\ `. `-._ __..--' ,-';/\n"
1106 " \\ `. `-. `-..___..---' _.--' ,'/\n"
1107 " `. `. `-._ __..--' ,' /\n"
1108 " `. `-_ ``--..'' _.-' ,'\n"
1109 " `-_ `-.___ __,--' ,'\n"
1110 " `-.__ `----\"\"\" __.-'\n"
1111 "hh `--..____..--'");
1112
1113 return CLI_OK;
1114 }
1115
1116 static int cmd_clear_counters(struct cli_def *cli, char *command, char **argv, int argc)
1117 {
1118 if (CLI_HELP_REQUESTED)
1119 return CLI_HELP_NO_ARGS;
1120
1121 cli_print(cli, "Counters cleared");
1122 SET_STAT(last_reset, time(NULL));
1123 return CLI_OK;
1124 }
1125
1126 static int cmd_drop_user(struct cli_def *cli, char *command, char **argv, int argc)
1127 {
1128 int i;
1129 sessionidt s;
1130
1131 if (CLI_HELP_REQUESTED)
1132 return cli_arg_help(cli, argc > 1,
1133 "USER", "Username of session to drop", NULL);
1134
1135 if (!config->cluster_iam_master)
1136 {
1137 cli_print(cli, "Can't do this on a slave. Do it on %s",
1138 fmtaddr(config->cluster_master_address, 0));
1139
1140 return CLI_OK;
1141 }
1142
1143 if (!argc)
1144 {
1145 cli_print(cli, "Specify a user to drop");
1146 return CLI_OK;
1147 }
1148
1149 for (i = 0; i < argc; i++)
1150 {
1151 if (!(s = sessionbyuser(argv[i])))
1152 {
1153 cli_print(cli, "User %s is not connected", argv[i]);
1154 continue;
1155 }
1156
1157 if (session[s].ip && session[s].opened && !session[s].die)
1158 {
1159 cli_print(cli, "Dropping user %s", session[s].user);
1160 cli_session_actions[s].action |= CLI_SESS_KILL;
1161 }
1162 }
1163
1164 return CLI_OK;
1165 }
1166
1167 static int cmd_drop_tunnel(struct cli_def *cli, char *command, char **argv, int argc)
1168 {
1169 int i;
1170 tunnelidt t;
1171
1172 if (CLI_HELP_REQUESTED)
1173 return cli_arg_help(cli, argc > 1,
1174 "<1-%d>", MAXTUNNEL-1, "Tunnel id to drop", NULL);
1175
1176 if (!config->cluster_iam_master)
1177 {
1178 cli_print(cli, "Can't do this on a slave. Do it on %s",
1179 fmtaddr(config->cluster_master_address, 0));
1180
1181 return CLI_OK;
1182 }
1183
1184 if (!argc)
1185 {
1186 cli_print(cli, "Specify a tunnel to drop");
1187 return CLI_OK;
1188 }
1189
1190 for (i = 0; i < argc; i++)
1191 {
1192 if ((t = atol(argv[i])) <= 0 || (t >= MAXTUNNEL))
1193 {
1194 cli_print(cli, "Invalid tunnel ID (1-%d)", MAXTUNNEL-1);
1195 continue;
1196 }
1197
1198 if (!tunnel[t].ip)
1199 {
1200 cli_print(cli, "Tunnel %d is not connected", t);
1201 continue;
1202 }
1203
1204 if (tunnel[t].die)
1205 {
1206 cli_print(cli, "Tunnel %d is already being shut down", t);
1207 continue;
1208 }
1209
1210 cli_print(cli, "Tunnel %d shut down (%s)", t, tunnel[t].hostname);
1211 cli_tunnel_actions[t].action |= CLI_TUN_KILL;
1212 }
1213
1214 return CLI_OK;
1215 }
1216
1217 static int cmd_drop_session(struct cli_def *cli, char *command, char **argv, int argc)
1218 {
1219 int i;
1220 sessionidt s;
1221
1222 if (CLI_HELP_REQUESTED)
1223 return cli_arg_help(cli, argc > 1,
1224 "<1-%d>", MAXSESSION-1, "Session id to drop", NULL);
1225
1226 if (!config->cluster_iam_master)
1227 {
1228 cli_print(cli, "Can't do this on a slave. Do it on %s",
1229 fmtaddr(config->cluster_master_address, 0));
1230
1231 return CLI_OK;
1232 }
1233
1234 if (!argc)
1235 {
1236 cli_print(cli, "Specify a session id to drop");
1237 return CLI_OK;
1238 }
1239
1240 for (i = 0; i < argc; i++)
1241 {
1242 if ((s = atol(argv[i])) <= 0 || (s > MAXSESSION))
1243 {
1244 cli_print(cli, "Invalid session ID (1-%d)", MAXSESSION-1);
1245 continue;
1246 }
1247
1248 if (session[s].ip && session[s].opened && !session[s].die)
1249 {
1250 cli_print(cli, "Dropping session %d", s);
1251 cli_session_actions[s].action |= CLI_SESS_KILL;
1252 }
1253 else
1254 {
1255 cli_print(cli, "Session %d is not active.", s);
1256 }
1257 }
1258
1259 return CLI_OK;
1260 }
1261
1262 static int cmd_snoop(struct cli_def *cli, char *command, char **argv, int argc)
1263 {
1264 in_addr_t ip;
1265 uint16_t port;
1266 sessionidt s;
1267
1268 if (CLI_HELP_REQUESTED)
1269 {
1270 switch (argc)
1271 {
1272 case 1:
1273 return cli_arg_help(cli, 0,
1274 "USER", "Username of session to snoop", NULL);
1275
1276 case 2:
1277 return cli_arg_help(cli, 0,
1278 "A.B.C.D", "IP address of snoop destination", NULL);
1279
1280 case 3:
1281 return cli_arg_help(cli, 0,
1282 "N", "Port of snoop destination", NULL);
1283
1284 case 4:
1285 if (!argv[3][1])
1286 return cli_arg_help(cli, 1, NULL);
1287
1288 default:
1289 return CLI_OK;
1290 }
1291 }
1292
1293 if (!config->cluster_iam_master)
1294 {
1295 cli_print(cli, "Can't do this on a slave. Do it on %s",
1296 fmtaddr(config->cluster_master_address, 0));
1297
1298 return CLI_OK;
1299 }
1300
1301 if (argc < 3)
1302 {
1303 cli_print(cli, "Specify username, ip and port");
1304 return CLI_OK;
1305 }
1306
1307 if (!(s = sessionbyuser(argv[0])))
1308 {
1309 cli_print(cli, "User %s is not connected", argv[0]);
1310 return CLI_OK;
1311 }
1312
1313 ip = inet_addr(argv[1]);
1314 if (!ip || ip == INADDR_NONE)
1315 {
1316 cli_print(cli, "Cannot parse IP \"%s\"", argv[1]);
1317 return CLI_OK;
1318 }
1319
1320 port = atoi(argv[2]);
1321 if (!port)
1322 {
1323 cli_print(cli, "Invalid port %s", argv[2]);
1324 return CLI_OK;
1325 }
1326
1327 cli_print(cli, "Snooping user %s to %s:%d", argv[0], fmtaddr(ip, 0), port);
1328 cli_session_actions[s].snoop_ip = ip;
1329 cli_session_actions[s].snoop_port = port;
1330 cli_session_actions[s].action |= CLI_SESS_SNOOP;
1331
1332 return CLI_OK;
1333 }
1334
1335 static int cmd_no_snoop(struct cli_def *cli, char *command, char **argv, int argc)
1336 {
1337 int i;
1338 sessionidt s;
1339
1340 if (CLI_HELP_REQUESTED)
1341 return cli_arg_help(cli, argc > 1,
1342 "USER", "Username of session to unsnoop", NULL);
1343
1344 if (!config->cluster_iam_master)
1345 {
1346 cli_print(cli, "Can't do this on a slave. Do it on %s",
1347 fmtaddr(config->cluster_master_address, 0));
1348
1349 return CLI_OK;
1350 }
1351
1352 if (!argc)
1353 {
1354 cli_print(cli, "Specify a user to unsnoop");
1355 return CLI_OK;
1356 }
1357
1358 for (i = 0; i < argc; i++)
1359 {
1360 if (!(s = sessionbyuser(argv[i])))
1361 {
1362 cli_print(cli, "User %s is not connected", argv[i]);
1363 continue;
1364 }
1365
1366 cli_print(cli, "Not snooping user %s", argv[i]);
1367 cli_session_actions[s].action |= CLI_SESS_NOSNOOP;
1368 }
1369
1370 return CLI_OK;
1371 }
1372
1373 static int cmd_throttle(struct cli_def *cli, char *command, char **argv, int argc)
1374 {
1375 int rate_in = 0;
1376 int rate_out = 0;
1377 sessionidt s;
1378
1379 /*
1380 throttle USER - throttle in/out to default rate
1381 throttle USER RATE - throttle in/out to default rate
1382 throttle USER in RATE - throttle input only
1383 throttle USER out RATE - throttle output only
1384 throttle USER in RATE out RATE - throttle both
1385 */
1386
1387 if (CLI_HELP_REQUESTED)
1388 {
1389 switch (argc)
1390 {
1391 case 1:
1392 return cli_arg_help(cli, 0,
1393 "USER", "Username of session to throttle", NULL);
1394
1395 case 2:
1396 return cli_arg_help(cli, 1,
1397 "RATE", "Rate in kbps (in and out)",
1398 "in", "Select incoming rate",
1399 "out", "Select outgoing rate", NULL);
1400
1401 case 4:
1402 return cli_arg_help(cli, 1,
1403 "in", "Select incoming rate",
1404 "out", "Select outgoing rate", NULL);
1405
1406 case 3:
1407 if (isdigit(argv[1][0]))
1408 return cli_arg_help(cli, 1, NULL);
1409
1410 case 5:
1411 return cli_arg_help(cli, 0, "RATE", "Rate in kbps", NULL);
1412
1413 default:
1414 return cli_arg_help(cli, argc > 1, NULL);
1415 }
1416 }
1417
1418 if (!config->cluster_iam_master)
1419 {
1420 cli_print(cli, "Can't do this on a slave. Do it on %s",
1421 fmtaddr(config->cluster_master_address, 0));
1422
1423 return CLI_OK;
1424 }
1425
1426 if (argc == 0)
1427 {
1428 cli_print(cli, "Specify a user to throttle");
1429 return CLI_OK;
1430 }
1431
1432 if (!(s = sessionbyuser(argv[0])))
1433 {
1434 cli_print(cli, "User %s is not connected", argv[0]);
1435 return CLI_OK;
1436 }
1437
1438 if (argc == 1)
1439 {
1440 rate_in = rate_out = config->rl_rate;
1441 }
1442 else if (argc == 2)
1443 {
1444 rate_in = rate_out = atoi(argv[1]);
1445 if (rate_in < 1)
1446 {
1447 cli_print(cli, "Invalid rate \"%s\"", argv[1]);
1448 return CLI_OK;
1449 }
1450 }
1451 else if (argc == 3 || argc == 5)
1452 {
1453 int i;
1454 for (i = 1; i < argc - 1; i += 2)
1455 {
1456 int r = 0;
1457 if (MATCH("in", argv[i]))
1458 r = rate_in = atoi(argv[i+1]);
1459 else if (MATCH("out", argv[i]))
1460 r = rate_out = atoi(argv[i+1]);
1461
1462 if (r < 1)
1463 {
1464 cli_print(cli, "Invalid rate specification \"%s %s\"", argv[i], argv[i+1]);
1465 return CLI_OK;
1466 }
1467 }
1468 }
1469 else
1470 {
1471 cli_print(cli, "Invalid arguments");
1472 return CLI_OK;
1473 }
1474
1475 if ((rate_in && session[s].throttle_in) || (rate_out && session[s].throttle_out))
1476 {
1477 cli_print(cli, "User %s already throttled, unthrottle first", argv[0]);
1478 return CLI_OK;
1479 }
1480
1481 cli_session_actions[s].throttle_in = cli_session_actions[s].throttle_out = -1;
1482 if (rate_in && session[s].throttle_in != rate_in)
1483 cli_session_actions[s].throttle_in = rate_in;
1484
1485 if (rate_out && session[s].throttle_out != rate_out)
1486 cli_session_actions[s].throttle_out = rate_out;
1487
1488 if (cli_session_actions[s].throttle_in == -1 &&
1489 cli_session_actions[s].throttle_out == -1)
1490 {
1491 cli_print(cli, "User %s already throttled at this rate", argv[0]);
1492 return CLI_OK;
1493 }
1494
1495 cli_print(cli, "Throttling user %s", argv[0]);
1496 cli_session_actions[s].action |= CLI_SESS_THROTTLE;
1497
1498 return CLI_OK;
1499 }
1500
1501 static int cmd_no_throttle(struct cli_def *cli, char *command, char **argv, int argc)
1502 {
1503 int i;
1504 sessionidt s;
1505
1506 if (CLI_HELP_REQUESTED)
1507 return cli_arg_help(cli, argc > 1,
1508 "USER", "Username of session to unthrottle", NULL);
1509
1510 if (!config->cluster_iam_master)
1511 {
1512 cli_print(cli, "Can't do this on a slave. Do it on %s",
1513 fmtaddr(config->cluster_master_address, 0));
1514
1515 return CLI_OK;
1516 }
1517
1518 if (!argc)
1519 {
1520 cli_print(cli, "Specify a user to unthrottle");
1521 return CLI_OK;
1522 }
1523
1524 for (i = 0; i < argc; i++)
1525 {
1526 if (!(s = sessionbyuser(argv[i])))
1527 {
1528 cli_print(cli, "User %s is not connected", argv[i]);
1529 continue;
1530 }
1531
1532 if (session[s].throttle_in || session[s].throttle_out)
1533 {
1534 cli_print(cli, "Unthrottling user %s", argv[i]);
1535 cli_session_actions[s].action |= CLI_SESS_NOTHROTTLE;
1536 }
1537 else
1538 {
1539 cli_print(cli, "User %s not throttled", argv[i]);
1540 }
1541 }
1542
1543 return CLI_OK;
1544 }
1545
1546 static int cmd_debug(struct cli_def *cli, char *command, char **argv, int argc)
1547 {
1548 int i;
1549
1550 if (CLI_HELP_REQUESTED)
1551 return cli_arg_help(cli, 1,
1552 "all", "Enable debugging for all except \"data\"",
1553 "critical", "", // FIXME: add descriptions
1554 "error", "",
1555 "warning", "",
1556 "info", "",
1557 "calls", "",
1558 "data", "",
1559 NULL);
1560
1561 if (!argc)
1562 {
1563 char *p = (char *) &debug_flags;
1564 for (i = 0; i < sizeof(debug_flags); i++)
1565 {
1566 if (p[i])
1567 {
1568 cli_print(cli, "Currently debugging:%s%s%s%s%s%s",
1569 (debug_flags.critical) ? " critical" : "",
1570 (debug_flags.error) ? " error" : "",
1571 (debug_flags.warning) ? " warning" : "",
1572 (debug_flags.info) ? " info" : "",
1573 (debug_flags.calls) ? " calls" : "",
1574 (debug_flags.data) ? " data" : "");
1575
1576 return CLI_OK;
1577 }
1578 }
1579
1580 cli_print(cli, "Debugging off");
1581 return CLI_OK;
1582 }
1583
1584 for (i = 0; i < argc; i++)
1585 {
1586 int len = strlen(argv[i]);
1587
1588 if (argv[i][0] == 'c' && len < 2)
1589 len = 2; /* distinguish [cr]itical from [ca]lls */
1590
1591 if (!strncmp("critical", argv[i], len)) { debug_flags.critical = 1; continue; }
1592 if (!strncmp("error", argv[i], len)) { debug_flags.error = 1; continue; }
1593 if (!strncmp("warning", argv[i], len)) { debug_flags.warning = 1; continue; }
1594 if (!strncmp("info", argv[i], len)) { debug_flags.info = 1; continue; }
1595 if (!strncmp("calls", argv[i], len)) { debug_flags.calls = 1; continue; }
1596 if (!strncmp("data", argv[i], len)) { debug_flags.data = 1; continue; }
1597 if (!strncmp("all", argv[i], len))
1598 {
1599 memset(&debug_flags, 1, sizeof(debug_flags));
1600 debug_flags.data = 0;
1601 continue;
1602 }
1603
1604 cli_print(cli, "Invalid debugging flag \"%s\"", argv[i]);
1605 }
1606
1607 return CLI_OK;
1608 }
1609
1610 static int cmd_no_debug(struct cli_def *cli, char *command, char **argv, int argc)
1611 {
1612 int i;
1613
1614 if (CLI_HELP_REQUESTED)
1615 return cli_arg_help(cli, 1,
1616 "all", "Disable all debugging",
1617 "critical", "", // FIXME: add descriptions
1618 "error", "",
1619 "warning", "",
1620 "info", "",
1621 "calls", "",
1622 "data", "",
1623 NULL);
1624
1625 if (!argc)
1626 {
1627 memset(&debug_flags, 0, sizeof(debug_flags));
1628 return CLI_OK;
1629 }
1630
1631 for (i = 0; i < argc; i++)
1632 {
1633 int len = strlen(argv[i]);
1634
1635 if (argv[i][0] == 'c' && len < 2)
1636 len = 2; /* distinguish [cr]itical from [ca]lls */
1637
1638 if (!strncmp("critical", argv[i], len)) { debug_flags.critical = 0; continue; }
1639 if (!strncmp("error", argv[i], len)) { debug_flags.error = 0; continue; }
1640 if (!strncmp("warning", argv[i], len)) { debug_flags.warning = 0; continue; }
1641 if (!strncmp("info", argv[i], len)) { debug_flags.info = 0; continue; }
1642 if (!strncmp("calls", argv[i], len)) { debug_flags.calls = 0; continue; }
1643 if (!strncmp("data", argv[i], len)) { debug_flags.data = 0; continue; }
1644 if (!strncmp("all", argv[i], len))
1645 {
1646 memset(&debug_flags, 0, sizeof(debug_flags));
1647 continue;
1648 }
1649
1650 cli_print(cli, "Invalid debugging flag \"%s\"", argv[i]);
1651 }
1652
1653 return CLI_OK;
1654 }
1655
1656 static int cmd_load_plugin(struct cli_def *cli, char *command, char **argv, int argc)
1657 {
1658 int i, firstfree = 0;
1659
1660 if (CLI_HELP_REQUESTED)
1661 return cli_arg_help(cli, argc > 1,
1662 "PLUGIN", "Name of plugin to load", NULL);
1663
1664 if (argc != 1)
1665 {
1666 cli_print(cli, "Specify a plugin to load");
1667 return CLI_OK;
1668 }
1669
1670 for (i = 0; i < MAXPLUGINS; i++)
1671 {
1672 if (!*config->plugins[i] && !firstfree)
1673 firstfree = i;
1674 if (strcmp(config->plugins[i], argv[0]) == 0)
1675 {
1676 cli_print(cli, "Plugin is already loaded");
1677 return CLI_OK;
1678 }
1679 }
1680
1681 if (firstfree)
1682 {
1683 strncpy(config->plugins[firstfree], argv[0], sizeof(config->plugins[firstfree]) - 1);
1684 config->reload_config = 1;
1685 cli_print(cli, "Loading plugin %s", argv[0]);
1686 }
1687
1688 return CLI_OK;
1689 }
1690
1691 static int cmd_remove_plugin(struct cli_def *cli, char *command, char **argv, int argc)
1692 {
1693 int i;
1694
1695 if (CLI_HELP_REQUESTED)
1696 return cli_arg_help(cli, argc > 1,
1697 "PLUGIN", "Name of plugin to unload", NULL);
1698
1699 if (argc != 1)
1700 {
1701 cli_print(cli, "Specify a plugin to remove");
1702 return CLI_OK;
1703 }
1704
1705 for (i = 0; i < MAXPLUGINS; i++)
1706 {
1707 if (strcmp(config->plugins[i], argv[0]) == 0)
1708 {
1709 config->reload_config = 1;
1710 memset(config->plugins[i], 0, sizeof(config->plugins[i]));
1711 return CLI_OK;
1712 }
1713 }
1714
1715 cli_print(cli, "Plugin is not loaded");
1716 return CLI_OK;
1717 }
1718
1719 static char *duration(time_t secs)
1720 {
1721 static char *buf = NULL;
1722 int p = 0;
1723
1724 if (!buf) buf = calloc(64, 1);
1725
1726 if (secs >= 86400)
1727 {
1728 int days = secs / 86400;
1729 p = sprintf(buf, "%d day%s, ", days, days > 1 ? "s" : "");
1730 secs %= 86400;
1731 }
1732
1733 if (secs >= 3600)
1734 {
1735 int mins = secs / 60;
1736 int hrs = mins / 60;
1737
1738 mins %= 60;
1739 sprintf(buf + p, "%d:%02d", hrs, mins);
1740 }
1741 else if (secs >= 60)
1742 {
1743 int mins = secs / 60;
1744 sprintf(buf + p, "%d min%s", mins, mins > 1 ? "s" : "");
1745 }
1746 else
1747 sprintf(buf, "%ld sec%s", secs, secs > 1 ? "s" : "");
1748
1749 return buf;
1750 }
1751
1752 static int cmd_uptime(struct cli_def *cli, char *command, char **argv, int argc)
1753 {
1754 FILE *fh;
1755 char buf[100], *p = buf, *loads[3];
1756 int i, num_sessions = 0;
1757
1758 if (CLI_HELP_REQUESTED)
1759 return CLI_HELP_NO_ARGS;
1760
1761 fh = fopen("/proc/loadavg", "r");
1762 fgets(buf, 100, fh);
1763 fclose(fh);
1764
1765 for (i = 0; i < 3; i++)
1766 loads[i] = strdup(strsep(&p, " "));
1767
1768 time(&time_now);
1769 strftime(buf, 99, "%H:%M:%S", localtime(&time_now));
1770
1771 for (i = 1; i < MAXSESSION; i++)
1772 if (session[i].opened) num_sessions++;
1773
1774 cli_print(cli, "%s up %s, %d users, load average: %s, %s, %s",
1775 buf,
1776 duration(time_now - config->start_time),
1777 num_sessions,
1778 loads[0], loads[1], loads[2]
1779 );
1780 for (i = 0; i < 3; i++)
1781 if (loads[i]) free(loads[i]);
1782
1783 cli_print(cli, "Bandwidth: %s", config->bandwidth);
1784
1785 return CLI_OK;
1786 }
1787
1788 static int cmd_set(struct cli_def *cli, char *command, char **argv, int argc)
1789 {
1790 int i;
1791
1792 if (CLI_HELP_REQUESTED)
1793 {
1794 switch (argc)
1795 {
1796 case 1:
1797 {
1798 int len = strlen(argv[0])-1;
1799 for (i = 0; config_values[i].key; i++)
1800 if (!len || !strncmp(config_values[i].key, argv[0], len))
1801 cli_print(cli, " %s", config_values[i].key);
1802 }
1803
1804 return CLI_OK;
1805
1806 case 2:
1807 return cli_arg_help(cli, 0,
1808 "VALUE", "Value for variable", NULL);
1809
1810 case 3:
1811 if (!argv[2][1])
1812 return cli_arg_help(cli, 1, NULL);
1813
1814 default:
1815 return CLI_OK;
1816 }
1817 }
1818
1819 if (argc != 2)
1820 {
1821 cli_print(cli, "Specify variable and value");
1822 return CLI_OK;
1823 }
1824
1825 for (i = 0; config_values[i].key; i++)
1826 {
1827 void *value = ((void *) config) + config_values[i].offset;
1828 if (strcmp(config_values[i].key, argv[0]) == 0)
1829 {
1830 // Found a value to set
1831 cli_print(cli, "Setting \"%s\" to \"%s\"", argv[0], argv[1]);
1832 switch (config_values[i].type)
1833 {
1834 case STRING:
1835 snprintf((char *) value, config_values[i].size, "%s", argv[1]);
1836 break;
1837 case INT:
1838 *(int *) value = atoi(argv[1]);
1839 break;
1840 case UNSIGNED_LONG:
1841 *(unsigned long *) value = atol(argv[1]);
1842 break;
1843 case SHORT:
1844 *(short *) value = atoi(argv[1]);
1845 break;
1846 case IPv4:
1847 *(in_addr_t *) value = inet_addr(argv[1]);
1848 break;
1849 case IPv6:
1850 inet_pton(AF_INET6, argv[1], value);
1851 break;
1852 case MAC:
1853 parsemac(argv[1], (char *)value);
1854 break;
1855 case BOOL:
1856 if (strcasecmp(argv[1], "yes") == 0 || strcasecmp(argv[1], "true") == 0 || strcasecmp(argv[1], "1") == 0)
1857 *(int *) value = 1;
1858 else
1859 *(int *) value = 0;
1860 break;
1861 default:
1862 cli_print(cli, "Unknown variable type");
1863 break;
1864 }
1865 config->reload_config = 1;
1866 return CLI_OK;
1867 }
1868 }
1869
1870 cli_print(cli, "Unknown variable \"%s\"", argv[0]);
1871 return CLI_OK;
1872 }
1873
1874 int regular_stuff(struct cli_def *cli)
1875 {
1876 int out = 0;
1877 int i;
1878
1879 #ifdef RINGBUFFER
1880 for (i = debug_rb_tail; i != ringbuffer->tail; i = (i + 1) % RINGBUFFER_SIZE)
1881 {
1882 char *m = ringbuffer->buffer[i].message;
1883 char *p;
1884 int show = 0;
1885
1886 if (!*m) continue;
1887
1888 switch (ringbuffer->buffer[i].level)
1889 {
1890 case 0: show = debug_flags.critical; break;
1891 case 1: show = debug_flags.error; break;
1892 case 2: show = debug_flags.warning; break;
1893 case 3: show = debug_flags.info; break;
1894 case 4: show = debug_flags.calls; break;
1895 case 5: show = debug_flags.data; break;
1896 }
1897
1898 if (!show) continue;
1899
1900 if (!(p = strchr(m, '\n')))
1901 p = m + strlen(p);
1902
1903 cli_print(cli, "\r%s-%u-%u %.*s",
1904 debug_levels[(int)ringbuffer->buffer[i].level],
1905 ringbuffer->buffer[i].tunnel,
1906 ringbuffer->buffer[i].session,
1907 (int) (p - m), m);
1908
1909 out++;
1910 }
1911
1912 debug_rb_tail = ringbuffer->tail;
1913 if (out)
1914 cli_reprompt(cli);
1915 #endif
1916 return CLI_OK;
1917 }
1918
1919 #ifdef BGP
1920 static int cmd_router_bgp(struct cli_def *cli, char *command, char **argv, int argc)
1921 {
1922 int as;
1923
1924 if (CLI_HELP_REQUESTED)
1925 return cli_arg_help(cli, argc > 1,
1926 "<1-65535>", "Autonomous system number", NULL);
1927
1928 if (argc != 1 || (as = atoi(argv[0])) < 1 || as > 65535)
1929 {
1930 cli_print(cli, "Invalid autonomous system number");
1931 return CLI_OK;
1932 }
1933
1934 if (bgp_configured && as != config->as_number)
1935 {
1936 cli_print(cli, "Can't change local AS on a running system");
1937 return CLI_OK;
1938 }
1939
1940 config->as_number = as;
1941 cli_set_configmode(cli, MODE_CONFIG_BGP, "router");
1942
1943 return CLI_OK;
1944 }
1945
1946 static int find_bgp_neighbour(char const *name)
1947 {
1948 int i;
1949 int new = -1;
1950 struct hostent *h;
1951 in_addr_t addrs[4] = { 0 };
1952 char **a;
1953
1954 if (!(h = gethostbyname(name)) || h->h_addrtype != AF_INET)
1955 return -2;
1956
1957 for (i = 0; i < sizeof(addrs) / sizeof(*addrs) && h->h_addr_list[i]; i++)
1958 memcpy(&addrs[i], h->h_addr_list[i], sizeof(*addrs));
1959
1960 for (i = 0; i < BGP_NUM_PEERS; i++)
1961 {
1962 if (!config->neighbour[i].name[0])
1963 {
1964 if (new == -1) new = i;
1965 continue;
1966 }
1967
1968 if (!strcmp(name, config->neighbour[i].name))
1969 return i;
1970
1971 if (!(h = gethostbyname(config->neighbour[i].name)) || h->h_addrtype != AF_INET)
1972 continue;
1973
1974 for (a = h->h_addr_list; *a; a++)
1975 {
1976 int j;
1977 for (j = 0; j < sizeof(addrs) / sizeof(*addrs) && addrs[j]; j++)
1978 if (!memcmp(&addrs[j], *a, sizeof(*addrs)))
1979 return i;
1980 }
1981 }
1982
1983 return new;
1984 }
1985
1986 static int cmd_router_bgp_neighbour(struct cli_def *cli, char *command, char **argv, int argc)
1987 {
1988 int i;
1989 int keepalive;
1990 int hold;
1991
1992 if (CLI_HELP_REQUESTED)
1993 {
1994 switch (argc)
1995 {
1996 case 1:
1997 return cli_arg_help(cli, 0,
1998 "A.B.C.D", "BGP neighbour address",
1999 "NAME", "BGP neighbour name",
2000 NULL);
2001
2002 case 2:
2003 return cli_arg_help(cli, 0,
2004 "remote-as", "Set remote autonomous system number",
2005 "timers", "Set timers",
2006 NULL);
2007
2008 default:
2009 if (MATCH("remote-as", argv[1]))
2010 return cli_arg_help(cli, argv[2][1], "<1-65535>", "Autonomous system number", NULL);
2011
2012 if (MATCH("timers", argv[1]))
2013 {
2014 if (argc == 3)
2015 return cli_arg_help(cli, 0, "<1-65535>", "Keepalive time", NULL);
2016
2017 if (argc == 4)
2018 return cli_arg_help(cli, argv[3][1], "<3-65535>", "Hold time", NULL);
2019
2020 if (argc == 5 && !argv[4][1])
2021 return cli_arg_help(cli, 1, NULL);
2022 }
2023
2024 return CLI_OK;
2025 }
2026 }
2027
2028 if (argc < 3)
2029 {
2030 cli_print(cli, "Invalid arguments");
2031 return CLI_OK;
2032 }
2033
2034 if ((i = find_bgp_neighbour(argv[0])) == -2)
2035 {
2036 cli_print(cli, "Invalid neighbour");
2037 return CLI_OK;
2038 }
2039
2040 if (i == -1)
2041 {
2042 cli_print(cli, "Too many neighbours (max %d)", BGP_NUM_PEERS);
2043 return CLI_OK;
2044 }
2045
2046 if (MATCH("remote-as", argv[1]))
2047 {
2048 int as = atoi(argv[2]);
2049 if (as < 0 || as > 65535)
2050 {
2051 cli_print(cli, "Invalid autonomous system number");
2052 return CLI_OK;
2053 }
2054
2055 if (!config->neighbour[i].name[0])
2056 {
2057 snprintf(config->neighbour[i].name, sizeof(config->neighbour[i].name), "%s", argv[0]);
2058 config->neighbour[i].keepalive = -1;
2059 config->neighbour[i].hold = -1;
2060 }
2061
2062 config->neighbour[i].as = as;
2063 return CLI_OK;
2064 }
2065
2066 if (argc != 4 || !MATCH("timers", argv[1]))
2067 {
2068 cli_print(cli, "Invalid arguments");
2069 return CLI_OK;
2070 }
2071
2072 if (!config->neighbour[i].name[0])
2073 {
2074 cli_print(cli, "Specify remote-as first");
2075 return CLI_OK;
2076 }
2077
2078 keepalive = atoi(argv[2]);
2079 hold = atoi(argv[3]);
2080
2081 if (keepalive < 1 || keepalive > 65535)
2082 {
2083 cli_print(cli, "Invalid keepalive time");
2084 return CLI_OK;
2085 }
2086
2087 if (hold < 3 || hold > 65535)
2088 {
2089 cli_print(cli, "Invalid hold time");
2090 return CLI_OK;
2091 }
2092
2093 if (keepalive == BGP_KEEPALIVE_TIME)
2094 keepalive = -1; // using default value
2095
2096 if (hold == BGP_HOLD_TIME)
2097 hold = -1;
2098
2099 config->neighbour[i].keepalive = keepalive;
2100 config->neighbour[i].hold = hold;
2101
2102 return CLI_OK;
2103 }
2104
2105 static int cmd_router_bgp_no_neighbour(struct cli_def *cli, char *command, char **argv, int argc)
2106 {
2107 int i;
2108
2109 if (CLI_HELP_REQUESTED)
2110 return cli_arg_help(cli, argc > 0,
2111 "A.B.C.D", "BGP neighbour address",
2112 "NAME", "BGP neighbour name",
2113 NULL);
2114
2115 if (argc != 1)
2116 {
2117 cli_print(cli, "Specify a BGP neighbour");
2118 return CLI_OK;
2119 }
2120
2121 if ((i = find_bgp_neighbour(argv[0])) == -2)
2122 {
2123 cli_print(cli, "Invalid neighbour");
2124 return CLI_OK;
2125 }
2126
2127 if (i < 0 || !config->neighbour[i].name[0])
2128 {
2129 cli_print(cli, "Neighbour %s not configured", argv[0]);
2130 return CLI_OK;
2131 }
2132
2133 memset(&config->neighbour[i], 0, sizeof(config->neighbour[i]));
2134 return CLI_OK;
2135 }
2136
2137 static int cmd_show_bgp(struct cli_def *cli, char *command, char **argv, int argc)
2138 {
2139 int i;
2140 int hdr = 0;
2141 char *addr;
2142
2143 if (!bgp_configured)
2144 return CLI_OK;
2145
2146 if (CLI_HELP_REQUESTED)
2147 return cli_arg_help(cli, 1,
2148 "A.B.C.D", "BGP neighbour address",
2149 "NAME", "BGP neighbour name",
2150 NULL);
2151
2152 cli_print(cli, "BGPv%d router identifier %s, local AS number %d",
2153 BGP_VERSION, fmtaddr(my_address, 0), (int) config->as_number);
2154
2155 time(&time_now);
2156
2157 for (i = 0; i < BGP_NUM_PEERS; i++)
2158 {
2159 if (!*bgp_peers[i].name)
2160 continue;
2161
2162 addr = fmtaddr(bgp_peers[i].addr, 0);
2163 if (argc && strcmp(addr, argv[0]) &&
2164 strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
2165 continue;
2166
2167 if (!hdr++)
2168 {
2169 cli_print(cli, "");
2170 cli_print(cli, "Peer AS Address "
2171 "State Retries Retry in Route Pend Timers");
2172 cli_print(cli, "------------------ ----- --------------- "
2173 "----------- ------- -------- ----- ---- ---------");
2174 }
2175
2176 cli_print(cli, "%-18.18s %5d %15s %-11s %7d %7lds %5s %4s %4d %4d",
2177 bgp_peers[i].name,
2178 bgp_peers[i].as,
2179 addr,
2180 bgp_state_str(bgp_peers[i].state),
2181 bgp_peers[i].retry_count,
2182 bgp_peers[i].retry_time ? bgp_peers[i].retry_time - time_now : 0,
2183 bgp_peers[i].routing ? "yes" : "no",
2184 bgp_peers[i].update_routes ? "yes" : "no",
2185 bgp_peers[i].keepalive,
2186 bgp_peers[i].hold);
2187 }
2188
2189 return CLI_OK;
2190 }
2191
2192 static int cmd_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc)
2193 {
2194 int i;
2195 char *addr;
2196
2197 if (!bgp_configured)
2198 return CLI_OK;
2199
2200 if (CLI_HELP_REQUESTED)
2201 return cli_arg_help(cli, 1,
2202 "A.B.C.D", "BGP neighbour address",
2203 "NAME", "BGP neighbour name",
2204 NULL);
2205
2206 for (i = 0; i < BGP_NUM_PEERS; i++)
2207 {
2208 if (bgp_peers[i].state != Established)
2209 continue;
2210
2211 if (!bgp_peers[i].routing)
2212 continue;
2213
2214 addr = fmtaddr(bgp_peers[i].addr, 0);
2215 if (argc && strcmp(addr, argv[0]) && strcmp(bgp_peers[i].name, argv[0]))
2216 continue;
2217
2218 bgp_peers[i].cli_flag = BGP_CLI_SUSPEND;
2219 cli_print(cli, "Suspending peer %s", bgp_peers[i].name);
2220 }
2221
2222 return CLI_OK;
2223 }
2224
2225 static int cmd_no_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc)
2226 {
2227 int i;
2228 char *addr;
2229
2230 if (!bgp_configured)
2231 return CLI_OK;
2232
2233 if (CLI_HELP_REQUESTED)
2234 return cli_arg_help(cli, 1,
2235 "A.B.C.D", "BGP neighbour address",
2236 "NAME", "BGP neighbour name",
2237 NULL);
2238
2239 for (i = 0; i < BGP_NUM_PEERS; i++)
2240 {
2241 if (bgp_peers[i].state != Established)
2242 continue;
2243
2244 if (bgp_peers[i].routing)
2245 continue;
2246
2247 addr = fmtaddr(bgp_peers[i].addr, 0);
2248 if (argc && strcmp(addr, argv[0]) &&
2249 strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
2250 continue;
2251
2252 bgp_peers[i].cli_flag = BGP_CLI_ENABLE;
2253 cli_print(cli, "Un-suspending peer %s", bgp_peers[i].name);
2254 }
2255
2256 return CLI_OK;
2257 }
2258
2259 static int cmd_restart_bgp(struct cli_def *cli, char *command, char **argv, int argc)
2260 {
2261 int i;
2262 char *addr;
2263
2264 if (!bgp_configured)
2265 return CLI_OK;
2266
2267 if (CLI_HELP_REQUESTED)
2268 return cli_arg_help(cli, 1,
2269 "A.B.C.D", "BGP neighbour address",
2270 "NAME", "BGP neighbour name",
2271 NULL);
2272
2273 for (i = 0; i < BGP_NUM_PEERS; i++)
2274 {
2275 if (!*bgp_peers[i].name)
2276 continue;
2277
2278 addr = fmtaddr(bgp_peers[i].addr, 0);
2279 if (argc && strcmp(addr, argv[0]) &&
2280 strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
2281 continue;
2282
2283 bgp_peers[i].cli_flag = BGP_CLI_RESTART;
2284 cli_print(cli, "Restarting peer %s", bgp_peers[i].name);
2285 }
2286
2287 return CLI_OK;
2288 }
2289 #endif /* BGP*/
2290
2291 static int filt;
2292 static int find_access_list(char const *name)
2293 {
2294 int i;
2295
2296 for (i = 0; i < MAXFILTER; i++)
2297 if (!(*ip_filters[i].name && strcmp(ip_filters[i].name, name)))
2298 return i;
2299
2300 return -1;
2301 }
2302
2303 static int access_list(struct cli_def *cli, char **argv, int argc, int add)
2304 {
2305 int extended;
2306
2307 if (CLI_HELP_REQUESTED)
2308 {
2309 switch (argc)
2310 {
2311 case 1:
2312 return cli_arg_help(cli, 0,
2313 "standard", "Standard syntax",
2314 "extended", "Extended syntax",
2315 NULL);
2316
2317 case 2:
2318 return cli_arg_help(cli, argv[1][1],
2319 "NAME", "Access-list name",
2320 NULL);
2321
2322 default:
2323 if (argc == 3 && !argv[2][1])
2324 return cli_arg_help(cli, 1, NULL);
2325
2326 return CLI_OK;
2327 }
2328 }
2329
2330 if (argc != 2)
2331 {
2332 cli_print(cli, "Specify access-list type and name");
2333 return CLI_OK;
2334 }
2335
2336 if (MATCH("standard", argv[0]))
2337 extended = 0;
2338 else if (MATCH("extended", argv[0]))
2339 extended = 1;
2340 else
2341 {
2342 cli_print(cli, "Invalid access-list type");
2343 return CLI_OK;
2344 }
2345
2346 if (strlen(argv[1]) > sizeof(ip_filters[0].name) - 1 ||
2347 strspn(argv[1], "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-") != strlen(argv[1]))
2348 {
2349 cli_print(cli, "Invalid access-list name");
2350 return CLI_OK;
2351 }
2352
2353 filt = find_access_list(argv[1]);
2354 if (add)
2355 {
2356 if (filt < 0)
2357 {
2358 cli_print(cli, "Too many access-lists");
2359 return CLI_OK;
2360 }
2361
2362 // racy
2363 if (!*ip_filters[filt].name)
2364 {
2365 memset(&ip_filters[filt], 0, sizeof(ip_filters[filt]));
2366 strcpy(ip_filters[filt].name, argv[1]);
2367 ip_filters[filt].extended = extended;
2368 }
2369 else if (ip_filters[filt].extended != extended)
2370 {
2371 cli_print(cli, "Access-list is %s",
2372 ip_filters[filt].extended ? "extended" : "standard");
2373
2374 return CLI_OK;
2375 }
2376
2377 cli_set_configmode(cli, MODE_CONFIG_NACL, extended ? "ext-nacl" : "std-nacl");
2378 return CLI_OK;
2379 }
2380
2381 if (filt < 0 || !*ip_filters[filt].name)
2382 {
2383 cli_print(cli, "Access-list not defined");
2384 return CLI_OK;
2385 }
2386
2387 // racy
2388 if (ip_filters[filt].used)
2389 {
2390 cli_print(cli, "Access-list in use");
2391 return CLI_OK;
2392 }
2393
2394 memset(&ip_filters[filt], 0, sizeof(ip_filters[filt]));
2395 return CLI_OK;
2396 }
2397
2398 static int cmd_ip_access_list(struct cli_def *cli, char *command, char **argv, int argc)
2399 {
2400 return access_list(cli, argv, argc, 1);
2401 }
2402
2403 static int cmd_no_ip_access_list(struct cli_def *cli, char *command, char **argv, int argc)
2404 {
2405 return access_list(cli, argv, argc, 0);
2406 }
2407
2408 static int show_ip_wild(char *buf, in_addr_t ip, in_addr_t wild)
2409 {
2410 if (ip == INADDR_ANY && wild == INADDR_BROADCAST)
2411 return sprintf(buf, " any");
2412
2413 if (wild == INADDR_ANY)
2414 return sprintf(buf, " host %s", fmtaddr(ip, 0));
2415
2416 return sprintf(buf, " %s %s", fmtaddr(ip, 0), fmtaddr(wild, 1));
2417 }
2418
2419 static int show_ports(char *buf, ip_filter_portt *ports)
2420 {
2421 switch (ports->op)
2422 {
2423 case FILTER_PORT_OP_EQ: return sprintf(buf, " eq %u", ports->port);
2424 case FILTER_PORT_OP_NEQ: return sprintf(buf, " neq %u", ports->port);
2425 case FILTER_PORT_OP_GT: return sprintf(buf, " gt %u", ports->port);
2426 case FILTER_PORT_OP_LT: return sprintf(buf, " lt %u", ports->port);
2427 case FILTER_PORT_OP_RANGE: return sprintf(buf, " range %u %u", ports->port, ports->port2);
2428 }
2429
2430 return 0;
2431 }
2432
2433 static char const *show_access_list_rule(int extended, ip_filter_rulet *rule)
2434 {
2435 static char buf[256];
2436 char *p = buf;
2437
2438 p += sprintf(p, " %s", rule->action == FILTER_ACTION_PERMIT ? "permit" : "deny");
2439 if (extended)
2440 {
2441 struct protoent *proto = getprotobynumber(rule->proto);
2442 p += sprintf(p, " %s", proto ? proto->p_name : "ERR");
2443 }
2444
2445 p += show_ip_wild(p, rule->src_ip, rule->src_wild);
2446 if (!extended)
2447 return buf;
2448
2449 if (rule->proto == IPPROTO_TCP || rule->proto == IPPROTO_UDP)
2450 p += show_ports(p, &rule->src_ports);
2451
2452 p += show_ip_wild(p, rule->dst_ip, rule->dst_wild);
2453 if (rule->proto == IPPROTO_TCP || rule->proto == IPPROTO_UDP)
2454 p += show_ports(p, &rule->dst_ports);
2455
2456 if (rule->proto == IPPROTO_TCP && rule->tcp_flag_op)
2457 {
2458 switch (rule->tcp_flag_op)
2459 {
2460 case FILTER_FLAG_OP_EST:
2461 p += sprintf(p, " established");
2462 break;
2463
2464 case FILTER_FLAG_OP_ANY:
2465 case FILTER_FLAG_OP_ALL:
2466 p += sprintf(p, " match-%s", rule->tcp_flag_op == FILTER_FLAG_OP_ALL ? "all" : "any");
2467 if (rule->tcp_sflags & TCP_FLAG_FIN) p += sprintf(p, " +fin");
2468 if (rule->tcp_cflags & TCP_FLAG_FIN) p += sprintf(p, " -fin");
2469 if (rule->tcp_sflags & TCP_FLAG_SYN) p += sprintf(p, " +syn");
2470 if (rule->tcp_cflags & TCP_FLAG_SYN) p += sprintf(p, " -syn");
2471 if (rule->tcp_sflags & TCP_FLAG_RST) p += sprintf(p, " +rst");
2472 if (rule->tcp_cflags & TCP_FLAG_RST) p += sprintf(p, " -rst");
2473 if (rule->tcp_sflags & TCP_FLAG_PSH) p += sprintf(p, " +psh");
2474 if (rule->tcp_cflags & TCP_FLAG_PSH) p += sprintf(p, " -psh");
2475 if (rule->tcp_sflags & TCP_FLAG_ACK) p += sprintf(p, " +ack");
2476 if (rule->tcp_cflags & TCP_FLAG_ACK) p += sprintf(p, " -ack");
2477 if (rule->tcp_sflags & TCP_FLAG_URG) p += sprintf(p, " +urg");
2478 if (rule->tcp_cflags & TCP_FLAG_URG) p += sprintf(p, " -urg");
2479 break;
2480 }
2481 }
2482
2483 if (rule->frag)
2484 p += sprintf(p, " fragments");
2485
2486 return buf;
2487 }
2488
2489 ip_filter_rulet *access_list_rule_ext(struct cli_def *cli, char *command, char **argv, int argc)
2490 {
2491 static ip_filter_rulet rule;
2492 struct in_addr addr;
2493 int i;
2494 int a;
2495
2496 if (CLI_HELP_REQUESTED)
2497 {
2498 if (argc == 1)
2499 {
2500 cli_arg_help(cli, 0,
2501 "ip", "Match IP packets",
2502 "tcp", "Match TCP packets",
2503 "udp", "Match UDP packets",
2504 NULL);
2505
2506 return NULL;
2507 }
2508
2509 // *sigh*, too darned complex
2510 cli_arg_help(cli, 0, "RULE", "SOURCE [PORTS] DEST [PORTS] FLAGS", NULL);
2511 return NULL;
2512 }
2513
2514 if (argc < 3)
2515 {
2516 cli_print(cli, "Specify rule details");
2517 return NULL;
2518 }
2519
2520 memset(&rule, 0, sizeof(rule));
2521 rule.action = (command[0] == 'p')
2522 ? FILTER_ACTION_PERMIT
2523 : FILTER_ACTION_DENY;
2524
2525 if (MATCH("ip", argv[0]))
2526 rule.proto = IPPROTO_IP;
2527 else if (MATCH("udp", argv[0]))
2528 rule.proto = IPPROTO_UDP;
2529 else if (MATCH("tcp", argv[0]))
2530 rule.proto = IPPROTO_TCP;
2531 else
2532 {
2533 cli_print(cli, "Invalid protocol \"%s\"", argv[0]);
2534 return NULL;
2535 }
2536
2537 for (a = 1, i = 0; i < 2; i++)
2538 {
2539 in_addr_t *ip;
2540 in_addr_t *wild;
2541 ip_filter_portt *port;
2542
2543 if (i == 0)
2544 {
2545 ip = &rule.src_ip;
2546 wild = &rule.src_wild;
2547 port = &rule.src_ports;
2548 }
2549 else
2550 {
2551 ip = &rule.dst_ip;
2552 wild = &rule.dst_wild;
2553 port = &rule.dst_ports;
2554 if (a >= argc)
2555 {
2556 cli_print(cli, "Specify destination");
2557 return NULL;
2558 }
2559 }
2560
2561 if (MATCH("any", argv[a]))
2562 {
2563 *ip = INADDR_ANY;
2564 *wild = INADDR_BROADCAST;
2565 a++;
2566 }
2567 else if (MATCH("host", argv[a]))
2568 {
2569 if (++a >= argc)
2570 {
2571 cli_print(cli, "Specify host ip address");
2572 return NULL;
2573 }
2574
2575 if (!inet_aton(argv[a], &addr))
2576 {
2577 cli_print(cli, "Cannot parse IP \"%s\"", argv[a]);
2578 return NULL;
2579 }
2580
2581 *ip = addr.s_addr;
2582 *wild = INADDR_ANY;
2583 a++;
2584 }
2585 else
2586 {
2587 if (a >= argc - 1)
2588 {
2589 cli_print(cli, "Specify %s ip address and wildcard", i ? "destination" : "source");
2590 return NULL;
2591 }
2592
2593 if (!inet_aton(argv[a], &addr))
2594 {
2595 cli_print(cli, "Cannot parse IP \"%s\"", argv[a]);
2596 return NULL;
2597 }
2598
2599 *ip = addr.s_addr;
2600
2601 if (!inet_aton(argv[++a], &addr))
2602 {
2603 cli_print(cli, "Cannot parse IP \"%s\"", argv[a]);
2604 return NULL;
2605 }
2606
2607 *wild = addr.s_addr;
2608 a++;
2609 }
2610
2611 if (rule.proto == IPPROTO_IP || a >= argc)
2612 continue;
2613
2614 port->op = 0;
2615 if (MATCH("eq", argv[a]))
2616 port->op = FILTER_PORT_OP_EQ;
2617 else if (MATCH("neq", argv[a]))
2618 port->op = FILTER_PORT_OP_NEQ;
2619 else if (MATCH("gt", argv[a]))
2620 port->op = FILTER_PORT_OP_GT;
2621 else if (MATCH("lt", argv[a]))
2622 port->op = FILTER_PORT_OP_LT;
2623 else if (MATCH("range", argv[a]))
2624 port->op = FILTER_PORT_OP_RANGE;
2625
2626 if (!port->op)
2627 continue;
2628
2629 if (++a >= argc)
2630 {
2631 cli_print(cli, "Specify port");
2632 return NULL;
2633 }
2634
2635 if (!(port->port = atoi(argv[a])))
2636 {
2637 cli_print(cli, "Invalid port \"%s\"", argv[a]);
2638 return NULL;
2639 }
2640
2641 a++;
2642 if (port->op != FILTER_PORT_OP_RANGE)
2643 continue;
2644
2645 if (a >= argc)
2646 {
2647 cli_print(cli, "Specify port");
2648 return NULL;
2649 }
2650
2651 if (!(port->port2 = atoi(argv[a])) || port->port2 < port->port)
2652 {
2653 cli_print(cli, "Invalid port \"%s\"", argv[a]);
2654 return NULL;
2655 }
2656
2657 a++;
2658 }
2659
2660 if (rule.proto == IPPROTO_TCP && a < argc)
2661 {
2662 if (MATCH("established", argv[a]))
2663 {
2664 rule.tcp_flag_op = FILTER_FLAG_OP_EST;
2665 a++;
2666 }
2667 else if (!strcmp(argv[a], "match-any") || !strcmp(argv[a], "match-an") ||
2668 !strcmp(argv[a], "match-all") || !strcmp(argv[a], "match-al"))
2669 {
2670 rule.tcp_flag_op = argv[a][7] == 'n'
2671 ? FILTER_FLAG_OP_ANY
2672 : FILTER_FLAG_OP_ALL;
2673
2674 if (++a >= argc)
2675 {
2676 cli_print(cli, "Specify tcp flags");
2677 return NULL;
2678 }
2679
2680 while (a < argc && (argv[a][0] == '+' || argv[a][0] == '-'))
2681 {
2682 uint8_t *f;
2683
2684 f = (argv[a][0] == '+') ? &rule.tcp_sflags : &rule.tcp_cflags;
2685
2686 if (MATCH("fin", &argv[a][1])) *f |= TCP_FLAG_FIN;
2687 else if (MATCH("syn", &argv[a][1])) *f |= TCP_FLAG_SYN;
2688 else if (MATCH("rst", &argv[a][1])) *f |= TCP_FLAG_RST;
2689 else if (MATCH("psh", &argv[a][1])) *f |= TCP_FLAG_PSH;
2690 else if (MATCH("ack", &argv[a][1])) *f |= TCP_FLAG_ACK;
2691 else if (MATCH("urg", &argv[a][1])) *f |= TCP_FLAG_URG;
2692 else
2693 {
2694 cli_print(cli, "Invalid tcp flag \"%s\"", argv[a]);
2695 return NULL;
2696 }
2697
2698 a++;
2699 }
2700 }
2701 }
2702
2703 if (a < argc && MATCH("fragments", argv[a]))
2704 {
2705 if (rule.src_ports.op || rule.dst_ports.op || rule.tcp_flag_op)
2706 {
2707 cli_print(cli, "Can't specify \"fragments\" on rules with layer 4 matches");
2708 return NULL;
2709 }
2710
2711 rule.frag = 1;
2712 a++;
2713 }
2714
2715 if (a < argc)
2716 {
2717 cli_print(cli, "Invalid flag \"%s\"", argv[a]);
2718 return NULL;
2719 }
2720
2721 return &rule;
2722 }
2723
2724 ip_filter_rulet *access_list_rule_std(struct cli_def *cli, char *command, char **argv, int argc)
2725 {
2726 static ip_filter_rulet rule;
2727 struct in_addr addr;
2728
2729 if (CLI_HELP_REQUESTED)
2730 {
2731 if (argc == 1)
2732 {
2733 cli_arg_help(cli, argv[0][1],
2734 "A.B.C.D", "Source address",
2735 "any", "Any source address",
2736 "host", "Source host",
2737 NULL);
2738
2739 return NULL;
2740 }
2741
2742 if (MATCH("any", argv[0]))
2743 {
2744 if (argc == 2 && !argv[1][1])
2745 cli_arg_help(cli, 1, NULL);
2746 }
2747 else if (MATCH("host", argv[0]))
2748 {
2749 if (argc == 2)
2750 {
2751 cli_arg_help(cli, argv[1][1],
2752 "A.B.C.D", "Host address",
2753 NULL);
2754 }
2755 else if (argc == 3 && !argv[2][1])
2756 cli_arg_help(cli, 1, NULL);
2757 }
2758 else
2759 {
2760 if (argc == 2)
2761 {
2762 cli_arg_help(cli, 1,
2763 "A.B.C.D", "Wildcard bits",
2764 NULL);
2765 }
2766 else if (argc == 3 && !argv[2][1])
2767 cli_arg_help(cli, 1, NULL);
2768 }
2769
2770 return NULL;
2771 }
2772
2773 if (argc < 1)
2774 {
2775 cli_print(cli, "Specify rule details");
2776 return NULL;
2777 }
2778
2779 memset(&rule, 0, sizeof(rule));
2780 rule.action = (command[0] == 'p')
2781 ? FILTER_ACTION_PERMIT
2782 : FILTER_ACTION_DENY;
2783
2784 rule.proto = IPPROTO_IP;
2785 if (MATCH("any", argv[0]))
2786 {
2787 rule.src_ip = INADDR_ANY;
2788 rule.src_wild = INADDR_BROADCAST;
2789 }
2790 else if (MATCH("host", argv[0]))
2791 {
2792 if (argc != 2)
2793 {
2794 cli_print(cli, "Specify host ip address");
2795 return NULL;
2796 }
2797
2798 if (!inet_aton(argv[1], &addr))
2799 {
2800 cli_print(cli, "Cannot parse IP \"%s\"", argv[1]);
2801 return NULL;
2802 }
2803
2804 rule.src_ip = addr.s_addr;
2805 rule.src_wild = INADDR_ANY;
2806 }
2807 else
2808 {
2809 if (argc > 2)
2810 {
2811 cli_print(cli, "Specify source ip address and wildcard");
2812 return NULL;
2813 }
2814
2815 if (!inet_aton(argv[0], &addr))
2816 {
2817 cli_print(cli, "Cannot parse IP \"%s\"", argv[0]);
2818 return NULL;
2819 }
2820
2821 rule.src_ip = addr.s_addr;
2822
2823 if (argc > 1)
2824 {
2825 if (!inet_aton(argv[1], &addr))
2826 {
2827 cli_print(cli, "Cannot parse IP \"%s\"", argv[1]);
2828 return NULL;
2829 }
2830
2831 rule.src_wild = addr.s_addr;
2832 }
2833 else
2834 rule.src_wild = INADDR_ANY;
2835 }
2836
2837 return &rule;
2838 }
2839
2840 static int cmd_ip_access_list_rule(struct cli_def *cli, char *command, char **argv, int argc)
2841 {
2842 int i;
2843 ip_filter_rulet *rule = ip_filters[filt].extended
2844 ? access_list_rule_ext(cli, command, argv, argc)
2845 : access_list_rule_std(cli, command, argv, argc);
2846
2847 if (!rule)
2848 return CLI_OK;
2849
2850 for (i = 0; i < MAXFILTER_RULES - 1; i++) // -1: list always terminated by empty rule
2851 {
2852 if (!ip_filters[filt].rules[i].action)
2853 {
2854 memcpy(&ip_filters[filt].rules[i], rule, sizeof(*rule));
2855 return CLI_OK;
2856 }
2857
2858 if (!memcmp(&ip_filters[filt].rules[i], rule, sizeof(*rule)))
2859 return CLI_OK;
2860 }
2861
2862 cli_print(cli, "Too many rules");
2863 return CLI_OK;
2864 }
2865
2866 static int cmd_filter(struct cli_def *cli, char *command, char **argv, int argc)
2867 {
2868 sessionidt s;
2869 int i;
2870
2871 /* filter USER {in|out} FILTER ... */
2872 if (CLI_HELP_REQUESTED)
2873 {
2874 switch (argc)
2875 {
2876 case 1:
2877 return cli_arg_help(cli, 0,
2878 "USER", "Username of session to filter", NULL);
2879
2880 case 2:
2881 case 4:
2882 return cli_arg_help(cli, 0,
2883 "in", "Set incoming filter",
2884 "out", "Set outgoing filter", NULL);
2885
2886 case 3:
2887 case 5:
2888 return cli_arg_help(cli, argc == 5 && argv[4][1],
2889 "NAME", "Filter name", NULL);
2890
2891 default:
2892 return cli_arg_help(cli, argc > 1, NULL);
2893 }
2894 }
2895
2896 if (!config->cluster_iam_master)
2897 {
2898 cli_print(cli, "Can't do this on a slave. Do it on %s",
2899 fmtaddr(config->cluster_master_address, 0));
2900
2901 return CLI_OK;
2902 }
2903
2904 if (argc != 3 && argc != 5)
2905 {
2906 cli_print(cli, "Specify a user and filters");
2907 return CLI_OK;
2908 }
2909
2910 if (!(s = sessionbyuser(argv[0])))
2911 {
2912 cli_print(cli, "User %s is not connected", argv[0]);
2913 return CLI_OK;
2914 }
2915
2916 cli_session_actions[s].filter_in = cli_session_actions[s].filter_out = -1;
2917 for (i = 1; i < argc; i += 2)
2918 {
2919 int *f = 0;
2920 int v;
2921
2922 if (MATCH("in", argv[i]))
2923 {
2924 if (session[s].filter_in)
2925 {
2926 cli_print(cli, "Input already filtered");
2927 return CLI_OK;
2928 }
2929 f = &cli_session_actions[s].filter_in;
2930 }
2931 else if (MATCH("out", argv[i]))
2932 {
2933 if (session[s].filter_out)
2934 {
2935 cli_print(cli, "Output already filtered");
2936 return CLI_OK;
2937 }
2938 f = &cli_session_actions[s].filter_out;
2939 }
2940 else
2941 {
2942 cli_print(cli, "Invalid filter specification");
2943 return CLI_OK;
2944 }
2945
2946 v = find_access_list(argv[i+1]);
2947 if (v < 0 || !*ip_filters[v].name)
2948 {
2949 cli_print(cli, "Access-list %s not defined", argv[i+1]);
2950 return CLI_OK;
2951 }
2952
2953 *f = v + 1;
2954 }
2955
2956 cli_print(cli, "Filtering user %s", argv[0]);
2957 cli_session_actions[s].action |= CLI_SESS_FILTER;
2958
2959 return CLI_OK;
2960 }
2961
2962 static int cmd_no_filter(struct cli_def *cli, char *command, char **argv, int argc)
2963 {
2964 int i;
2965 sessionidt s;
2966
2967 if (CLI_HELP_REQUESTED)
2968 return cli_arg_help(cli, argc > 1,
2969 "USER", "Username of session to remove filters from", NULL);
2970
2971 if (!config->cluster_iam_master)
2972 {
2973 cli_print(cli, "Can't do this on a slave. Do it on %s",
2974 fmtaddr(config->cluster_master_address, 0));
2975
2976 return CLI_OK;
2977 }
2978
2979 if (!argc)
2980 {
2981 cli_print(cli, "Specify a user to remove filters from");
2982 return CLI_OK;
2983 }
2984
2985 for (i = 0; i < argc; i++)
2986 {
2987 if (!(s = sessionbyuser(argv[i])))
2988 {
2989 cli_print(cli, "User %s is not connected", argv[i]);
2990 continue;
2991 }
2992
2993 if (session[s].filter_in || session[s].filter_out)
2994 {
2995 cli_print(cli, "Removing filters from user %s", argv[i]);
2996 cli_session_actions[s].action |= CLI_SESS_NOFILTER;
2997 }
2998 else
2999 {
3000 cli_print(cli, "User %s not filtered", argv[i]);
3001 }
3002 }
3003
3004 return CLI_OK;
3005 }
3006
3007 static int cmd_show_access_list(struct cli_def *cli, char *command, char **argv, int argc)
3008 {
3009 int i;
3010
3011 if (CLI_HELP_REQUESTED)
3012 return cli_arg_help(cli, argc > 1, "NAME", "Filter name", NULL);
3013
3014 if (argc < 1)
3015 {
3016 cli_print(cli, "Specify a filter name");
3017 return CLI_OK;
3018 }
3019
3020 for (i = 0; i < argc; i++)
3021 {
3022 int f = find_access_list(argv[i]);
3023 ip_filter_rulet *rules;
3024
3025 if (f < 0 || !*ip_filters[f].name)
3026 {
3027 cli_print(cli, "Access-list %s not defined", argv[i]);
3028 return CLI_OK;
3029 }
3030
3031 if (i)
3032 cli_print(cli, "");
3033
3034 cli_print(cli, "%s IP access list %s",
3035 ip_filters[f].extended ? "Extended" : "Standard",
3036 ip_filters[f].name);
3037
3038 for (rules = ip_filters[f].rules; rules->action; rules++)
3039 {
3040 char const *r = show_access_list_rule(ip_filters[f].extended, rules);
3041 if (rules->counter)
3042 cli_print(cli, "%s (%d match%s)", r,
3043 rules->counter, rules->counter > 1 ? "es" : "");
3044 else
3045 cli_print(cli, "%s", r);
3046 }
3047 }
3048
3049 return CLI_OK;
3050 }
3051
3052 // Convert a string in the form of abcd.ef12.3456 into char[6]
3053 void parsemac(char *string, char mac[6])
3054 {
3055 if (sscanf(string, "%02x%02x.%02x%02x.%02x%02x", (unsigned int *)&mac[0], (unsigned int *)&mac[1], (unsigned int *)&mac[2], (unsigned int *)&mac[3], (unsigned int *)&mac[4], (unsigned int *)&mac[5]) == 6)
3056 return;
3057 if (sscanf(string, "%02x%02x:%02x%02x:%02x%02x", (unsigned int *)&mac[0], (unsigned int *)&mac[1], (unsigned int *)&mac[2], (unsigned int *)&mac[3], (unsigned int *)&mac[4], (unsigned int *)&mac[5]) == 6)
3058 return;
3059 memset(mac, 0, 6);
3060 }
for cloning use: "git clone git://git.sameswireless.fr/l2tpns.git" ; For add to your sources.list: "deb http://package.sameswifi.fr/ jessie main"