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add result/error codes to StopCCN
[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 1.53 2005/02/08 01:20:38 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 require_auth = addr.sin_addr.s_addr != inet_addr("127.0.0.1");
294 LOG(require_auth ? 3 : 4, 0, 0, "Accepted connection to CLI from %s\n",
295 fmtaddr(addr.sin_addr.s_addr, 0));
296 }
297 else
298 LOG(0, 0, 0, "getpeername() failed on cli socket. Requiring authentication: %s\n", strerror(errno));
299
300 if (require_auth)
301 {
302 LOG(3, 0, 0, "CLI is remote, requiring authentication\n");
303 if (!cli->users) /* paranoia */
304 {
305 LOG(0, 0, 0, "No users for remote authentication! Exiting CLI\n");
306 exit(0);
307 }
308 }
309 else
310 {
311 /* no username/pass required */
312 cli->users = 0;
313 }
314
315 debug_session = 0;
316 debug_tunnel = 0;
317 #ifdef RINGBUFFER
318 debug_rb_tail = ringbuffer->tail;
319 #endif
320 memset(&debug_flags, 0, sizeof(debug_flags));
321 debug_flags.critical = 1;
322
323 cli_loop(cli, sockfd);
324
325 close(sockfd);
326 LOG(require_auth ? 3 : 4, 0, 0, "Closed CLI connection from %s\n",
327 fmtaddr(addr.sin_addr.s_addr, 0));
328
329 exit(0);
330 }
331
332 static void cli_print_log(struct cli_def *cli, char *string)
333 {
334 LOG(3, 0, 0, "%s\n", string);
335 }
336
337 void cli_do_file(FILE *fh)
338 {
339 LOG(3, 0, 0, "Reading configuration file\n");
340 cli_print_callback(cli, cli_print_log);
341 cli_file(cli, fh, PRIVILEGE_PRIVILEGED, MODE_CONFIG);
342 cli_print_callback(cli, NULL);
343 }
344
345 int cli_arg_help(struct cli_def *cli, int cr_ok, char *entry, ...)
346 {
347 va_list ap;
348 char *desc;
349 char buf[16];
350 char *p;
351
352 va_start(ap, entry);
353 while (entry)
354 {
355 /* allow one %d */
356 if ((p = strchr(entry, '%')) && !strchr(p+1, '%') && p[1] == 'd')
357 {
358 int v = va_arg(ap, int);
359 snprintf(buf, sizeof(buf), entry, v);
360 p = buf;
361 }
362 else
363 p = entry;
364
365 desc = va_arg(ap, char *);
366 if (desc && *desc)
367 cli_print(cli, " %-20s %s", p, desc);
368 else
369 cli_print(cli, " %s", p);
370
371 entry = desc ? va_arg(ap, char *) : 0;
372 }
373
374 va_end(ap);
375 if (cr_ok)
376 cli_print(cli, " <cr>");
377
378 return CLI_OK;
379 }
380
381 static int cmd_show_session(struct cli_def *cli, char *command, char **argv, int argc)
382 {
383 int i;
384
385 if (CLI_HELP_REQUESTED)
386 return cli_arg_help(cli, 1,
387 "<1-%d>", MAXSESSION-1, "Show specific session by id",
388 NULL);
389
390 time(&time_now);
391 if (argc > 0)
392 {
393 // Show individual session
394 for (i = 0; i < argc; i++)
395 {
396 unsigned int s, b_in, b_out;
397 s = atoi(argv[i]);
398 if (s <= 0 || s >= MAXSESSION)
399 {
400 cli_print(cli, "Invalid session id \"%s\"", argv[i]);
401 continue;
402 }
403 cli_print(cli, "\r\nSession %d:", s);
404 cli_print(cli, "\tUser:\t\t%s", session[s].user[0] ? session[s].user : "none");
405 cli_print(cli, "\tCalling Num:\t%s", session[s].calling);
406 cli_print(cli, "\tCalled Num:\t%s", session[s].called);
407 cli_print(cli, "\tTunnel ID:\t%d", session[s].tunnel);
408 cli_print(cli, "\tIP address:\t%s", fmtaddr(htonl(session[s].ip), 0));
409 cli_print(cli, "\tUnique SID:\t%lu", session[s].unique_id);
410 cli_print(cli, "\tIdle time:\t%u seconds", abs(time_now - session[s].last_packet));
411 cli_print(cli, "\tNext Recv:\t%u", session[s].nr);
412 cli_print(cli, "\tNext Send:\t%u", session[s].ns);
413 cli_print(cli, "\tBytes In/Out:\t%u/%u", session[s].total_cout, session[s].total_cin);
414 cli_print(cli, "\tPkts In/Out:\t%u/%u", session[s].pout, session[s].pin);
415 cli_print(cli, "\tMRU:\t\t%d", session[s].mru);
416 cli_print(cli, "\tRadius Session:\t%u", session[s].radius);
417 cli_print(cli, "\tRx Speed:\t%u", session[s].rx_connect_speed);
418 cli_print(cli, "\tTx Speed:\t%u", session[s].tx_connect_speed);
419 if (session[s].filter_in && session[s].filter_in <= MAXFILTER)
420 cli_print(cli, "\tFilter in:\t%u (%s)", session[s].filter_in, ip_filters[session[s].filter_in - 1].name);
421 if (session[s].filter_out && session[s].filter_out <= MAXFILTER)
422 cli_print(cli, "\tFilter out:\t%u (%s)", session[s].filter_out, ip_filters[session[s].filter_out - 1].name);
423 if (session[s].snoop_ip && session[s].snoop_port)
424 cli_print(cli, "\tIntercepted:\t%s:%d", fmtaddr(session[s].snoop_ip, 0), session[s] .snoop_port);
425 else
426 cli_print(cli, "\tIntercepted:\tno");
427
428 cli_print(cli, "\tWalled Garden:\t%s", session[s].walled_garden ? "YES" : "no");
429 {
430 int t = (session[s].throttle_in || session[s].throttle_out);
431 cli_print(cli, "\tThrottled:\t%s%s%.0d%s%s%.0d%s%s",
432 t ? "YES" : "no", t ? " (" : "",
433 session[s].throttle_in, session[s].throttle_in ? "kbps" : t ? "-" : "",
434 t ? "/" : "",
435 session[s].throttle_out, session[s].throttle_out ? "kbps" : t ? "-" : "",
436 t ? ")" : "");
437 }
438
439 b_in = session[s].tbf_in;
440 b_out = session[s].tbf_out;
441 if (b_in || b_out)
442 cli_print(cli, "\t\t\t%5s %6s %6s | %7s %7s %8s %8s %8s %8s",
443 "Rate", "Credit", "Queued", "ByteIn", "PackIn",
444 "ByteSent", "PackSent", "PackDrop", "PackDelay");
445
446 if (b_in)
447 cli_print(cli, "\tTBFI#%d%1s%s\t%5d %6d %6d | %7d %7d %8d %8d %8d %8d",
448 b_in,
449 (filter_list[b_in].next ? "*" : " "),
450 (b_in < 100 ? "\t" : ""),
451 filter_list[b_in].rate * 8,
452 filter_list[b_in].credit,
453 filter_list[b_in].queued,
454 filter_list[b_in].b_queued,
455 filter_list[b_in].p_queued,
456 filter_list[b_in].b_sent,
457 filter_list[b_in].p_sent,
458 filter_list[b_in].p_dropped,
459 filter_list[b_in].p_delayed);
460
461 if (b_out)
462 cli_print(cli, "\tTBFO#%d%1s%s\t%5d %6d %6d | %7d %7d %8d %8d %8d %8d",
463 b_out,
464 (filter_list[b_out].next ? "*" : " "),
465 (b_out < 100 ? "\t" : ""),
466 filter_list[b_out].rate * 8,
467 filter_list[b_out].credit,
468 filter_list[b_out].queued,
469 filter_list[b_out].b_queued,
470 filter_list[b_out].p_queued,
471 filter_list[b_out].b_sent,
472 filter_list[b_out].p_sent,
473 filter_list[b_out].p_dropped,
474 filter_list[b_out].p_delayed);
475
476 }
477 return CLI_OK;
478 }
479
480 // Show Summary
481 cli_print(cli, "%5s %4s %-32s %-15s %s %s %s %s %10s %10s %10s %4s %-15s %s",
482 "SID",
483 "TID",
484 "Username",
485 "IP",
486 "I",
487 "T",
488 "G",
489 "6",
490 "opened",
491 "downloaded",
492 "uploaded",
493 "idle",
494 "LAC",
495 "CLI");
496
497 for (i = 1; i < MAXSESSION; i++)
498 {
499 if (!session[i].opened) continue;
500 cli_print(cli, "%5d %4d %-32s %-15s %s %s %s %s %10u %10lu %10lu %4u %-15s %s",
501 i,
502 session[i].tunnel,
503 session[i].user[0] ? session[i].user : "*",
504 fmtaddr(htonl(session[i].ip), 0),
505 (session[i].snoop_ip && session[i].snoop_port) ? "Y" : "N",
506 (session[i].throttle_in || session[i].throttle_out) ? "Y" : "N",
507 (session[i].walled_garden) ? "Y" : "N",
508 (session[i].flags & SF_IPV6CP_ACKED) ? "Y" : "N",
509 abs(time_now - (unsigned long)session[i].opened),
510 (unsigned long)session[i].total_cout,
511 (unsigned long)session[i].total_cin,
512 abs(time_now - (session[i].last_packet ? session[i].last_packet : time_now)),
513 fmtaddr(htonl(tunnel[ session[i].tunnel ].ip), 1),
514 session[i].calling[0] ? session[i].calling : "*");
515 }
516 return CLI_OK;
517 }
518
519 static int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int argc)
520 {
521 int i, x, show_all = 0;
522 char *states[] = {
523 "Free",
524 "Open",
525 "Closing",
526 "Opening",
527 };
528
529 if (CLI_HELP_REQUESTED)
530 {
531 if (argc > 1)
532 return cli_arg_help(cli, 1,
533 "<1-%d>", MAXTUNNEL-1, "Show specific tunnel by id",
534 NULL);
535
536 return cli_arg_help(cli, 1,
537 "all", "Show all tunnels, including unused",
538 "<1-%d>", MAXTUNNEL-1, "Show specific tunnel by id",
539 NULL);
540 }
541
542 time(&time_now);
543 if (argc > 0)
544 {
545 if (strcmp(argv[0], "all") == 0)
546 {
547 show_all = 1;
548 }
549 else
550 {
551 // Show individual tunnel
552 for (i = 0; i < argc; i++)
553 {
554 char s[65535] = {0};
555 unsigned int t;
556 t = atoi(argv[i]);
557 if (t <= 0 || t >= MAXTUNNEL)
558 {
559 cli_print(cli, "Invalid tunnel id \"%s\"", argv[i]);
560 continue;
561 }
562 cli_print(cli, "\r\nTunnel %d:", t);
563 cli_print(cli, "\tState:\t\t%s", states[tunnel[t].state]);
564 cli_print(cli, "\tHostname:\t%s", tunnel[t].hostname[0] ? tunnel[t].hostname : "(none)");
565 cli_print(cli, "\tRemote IP:\t%s", fmtaddr(htonl(tunnel[t].ip), 0));
566 cli_print(cli, "\tRemote Port:\t%d", tunnel[t].port);
567 cli_print(cli, "\tRx Window:\t%u", tunnel[t].window);
568 cli_print(cli, "\tNext Recv:\t%u", tunnel[t].nr);
569 cli_print(cli, "\tNext Send:\t%u", tunnel[t].ns);
570 cli_print(cli, "\tQueue Len:\t%u", tunnel[t].controlc);
571 cli_print(cli, "\tLast Packet Age:%u", (unsigned)(time_now - tunnel[t].last));
572
573 for (x = 0; x < MAXSESSION; x++)
574 if (session[x].tunnel == t && session[x].opened && !session[x].die)
575 sprintf(s, "%s%u ", s, x);
576
577 cli_print(cli, "\tSessions:\t%s", s);
578 }
579 return CLI_OK;
580 }
581 }
582
583 // Show tunnel summary
584 cli_print(cli, "%4s %20s %20s %6s %s",
585 "TID",
586 "Hostname",
587 "IP",
588 "State",
589 "Sessions");
590
591 for (i = 1; i < MAXTUNNEL; i++)
592 {
593 int sessions = 0;
594 if (!show_all && (!tunnel[i].ip || tunnel[i].die)) continue;
595
596 for (x = 0; x < MAXSESSION; x++) if (session[x].tunnel == i && session[x].opened && !session[x].die) sessions++;
597 cli_print(cli, "%4d %20s %20s %6s %6d",
598 i,
599 *tunnel[i].hostname ? tunnel[i].hostname : "(null)",
600 fmtaddr(htonl(tunnel[i].ip), 0),
601 states[tunnel[i].state],
602 sessions);
603 }
604
605 return CLI_OK;
606 }
607
608 static int cmd_show_users(struct cli_def *cli, char *command, char **argv, int argc)
609 {
610 char sid[32][8];
611 char *sargv[32];
612 int sargc = 0;
613 int i;
614
615 if (CLI_HELP_REQUESTED)
616 return cli_arg_help(cli, 1,
617 "USER", "Show details for specific username",
618 NULL);
619
620 for (i = 0; i < MAXSESSION; i++)
621 {
622 if (!session[i].opened) continue;
623 if (!session[i].user[0]) continue;
624 if (argc > 0)
625 {
626 int j;
627 for (j = 0; j < argc && sargc < 32; j++)
628 {
629 if (strcmp(argv[j], session[i].user) == 0)
630 {
631 snprintf(sid[sargc], sizeof(sid[0]), "%d", i);
632 sargv[sargc] = sid[sargc];
633 sargc++;
634 }
635 }
636
637 continue;
638 }
639
640 cli_print(cli, "%s", session[i].user);
641 }
642
643 if (sargc > 0)
644 return cmd_show_session(cli, "users", sargv, sargc);
645
646 return CLI_OK;
647 }
648
649 static int cmd_show_counters(struct cli_def *cli, char *command, char **argv, int argc)
650 {
651 if (CLI_HELP_REQUESTED)
652 return CLI_HELP_NO_ARGS;
653
654 cli_print(cli, "%-10s %10s %10s %10s %10s", "Ethernet", "Bytes", "Packets", "Errors", "Dropped");
655 cli_print(cli, "%-10s %10u %10u %10u %10u", "RX",
656 GET_STAT(tun_rx_bytes),
657 GET_STAT(tun_rx_packets),
658 GET_STAT(tun_rx_errors),
659 GET_STAT(tun_rx_dropped));
660 cli_print(cli, "%-10s %10u %10u %10u", "TX",
661 GET_STAT(tun_tx_bytes),
662 GET_STAT(tun_tx_packets),
663 GET_STAT(tun_tx_errors));
664 cli_print(cli, "");
665
666 cli_print(cli, "%-10s %10s %10s %10s %10s", "Tunnel", "Bytes", "Packets", "Errors", "Retries");
667 cli_print(cli, "%-10s %10u %10u %10u", "RX",
668 GET_STAT(tunnel_rx_bytes),
669 GET_STAT(tunnel_rx_packets),
670 GET_STAT(tunnel_rx_errors));
671 cli_print(cli, "%-10s %10u %10u %10u %10u", "TX",
672 GET_STAT(tunnel_tx_bytes),
673 GET_STAT(tunnel_tx_packets),
674 GET_STAT(tunnel_tx_errors),
675 GET_STAT(tunnel_retries));
676 cli_print(cli, "");
677
678 cli_print(cli, "%-30s%-10s", "Counter", "Value");
679 cli_print(cli, "-----------------------------------------");
680 cli_print(cli, "%-30s%u", "radius_retries", GET_STAT(radius_retries));
681 cli_print(cli, "%-30s%u", "arp_sent", GET_STAT(arp_sent));
682 cli_print(cli, "%-30s%u", "packets_snooped", GET_STAT(packets_snooped));
683 cli_print(cli, "%-30s%u", "tunnel_created", GET_STAT(tunnel_created));
684 cli_print(cli, "%-30s%u", "session_created", GET_STAT(session_created));
685 cli_print(cli, "%-30s%u", "tunnel_timeout", GET_STAT(tunnel_timeout));
686 cli_print(cli, "%-30s%u", "session_timeout", GET_STAT(session_timeout));
687 cli_print(cli, "%-30s%u", "radius_timeout", GET_STAT(radius_timeout));
688 cli_print(cli, "%-30s%u", "radius_overflow", GET_STAT(radius_overflow));
689 cli_print(cli, "%-30s%u", "tunnel_overflow", GET_STAT(tunnel_overflow));
690 cli_print(cli, "%-30s%u", "session_overflow", GET_STAT(session_overflow));
691 cli_print(cli, "%-30s%u", "ip_allocated", GET_STAT(ip_allocated));
692 cli_print(cli, "%-30s%u", "ip_freed", GET_STAT(ip_freed));
693 cli_print(cli, "%-30s%u", "cluster_forwarded", GET_STAT(c_forwarded));
694 cli_print(cli, "%-30s%u", "recv_forward", GET_STAT(recv_forward));
695 cli_print(cli, "%-30s%u", "select_called", GET_STAT(select_called));
696 cli_print(cli, "%-30s%u", "multi_read_used", GET_STAT(multi_read_used));
697 cli_print(cli, "%-30s%u", "multi_read_exceeded", GET_STAT(multi_read_exceeded));
698
699
700 #ifdef STATISTICS
701 cli_print(cli, "\n%-30s%-10s", "Counter", "Value");
702 cli_print(cli, "-----------------------------------------");
703 cli_print(cli, "%-30s%u", "call_processtun", GET_STAT(call_processtun));
704 cli_print(cli, "%-30s%u", "call_processipout", GET_STAT(call_processipout));
705 cli_print(cli, "%-30s%u", "call_processipv6out", GET_STAT(call_processipv6out));
706 cli_print(cli, "%-30s%u", "call_processudp", GET_STAT(call_processudp));
707 cli_print(cli, "%-30s%u", "call_processpap", GET_STAT(call_processpap));
708 cli_print(cli, "%-30s%u", "call_processchap", GET_STAT(call_processchap));
709 cli_print(cli, "%-30s%u", "call_processlcp", GET_STAT(call_processlcp));
710 cli_print(cli, "%-30s%u", "call_processipcp", GET_STAT(call_processipcp));
711 cli_print(cli, "%-30s%u", "call_processipv6cp", GET_STAT(call_processipv6cp));
712 cli_print(cli, "%-30s%u", "call_processipin", GET_STAT(call_processipin));
713 cli_print(cli, "%-30s%u", "call_processipv6in", GET_STAT(call_processipv6in));
714 cli_print(cli, "%-30s%u", "call_processccp", GET_STAT(call_processccp));
715 cli_print(cli, "%-30s%u", "call_processrad", GET_STAT(call_processrad));
716 cli_print(cli, "%-30s%u", "call_sendarp", GET_STAT(call_sendarp));
717 cli_print(cli, "%-30s%u", "call_sendipcp", GET_STAT(call_sendipcp));
718 cli_print(cli, "%-30s%u", "call_sendchap", GET_STAT(call_sendchap));
719 cli_print(cli, "%-30s%u", "call_sessionbyip", GET_STAT(call_sessionbyip));
720 cli_print(cli, "%-30s%u", "call_sessionbyipv6", GET_STAT(call_sessionbyipv6));
721 cli_print(cli, "%-30s%u", "call_sessionbyuser", GET_STAT(call_sessionbyuser));
722 cli_print(cli, "%-30s%u", "call_tunnelsend", GET_STAT(call_tunnelsend));
723 cli_print(cli, "%-30s%u", "call_tunnelkill", GET_STAT(call_tunnelkill));
724 cli_print(cli, "%-30s%u", "call_tunnelshutdown", GET_STAT(call_tunnelshutdown));
725 cli_print(cli, "%-30s%u", "call_sessionkill", GET_STAT(call_sessionkill));
726 cli_print(cli, "%-30s%u", "call_sessionshutdown", GET_STAT(call_sessionshutdown));
727 cli_print(cli, "%-30s%u", "call_sessionsetup", GET_STAT(call_sessionsetup));
728 cli_print(cli, "%-30s%u", "call_assign_ip_address", GET_STAT(call_assign_ip_address));
729 cli_print(cli, "%-30s%u", "call_free_ip_address", GET_STAT(call_free_ip_address));
730 cli_print(cli, "%-30s%u", "call_dump_acct_info", GET_STAT(call_dump_acct_info));
731 cli_print(cli, "%-30s%u", "call_radiussend", GET_STAT(call_radiussend));
732 cli_print(cli, "%-30s%u", "call_radiusretry", GET_STAT(call_radiusretry));
733 cli_print(cli, "%-30s%u", "call_random_data", GET_STAT(call_random_data));
734 #endif
735
736 {
737 time_t l = GET_STAT(last_reset);
738 char *t = ctime(&l);
739 char *p = strchr(t, '\n');
740 if (p) *p = 0;
741
742 cli_print(cli, "");
743 cli_print(cli, "Last counter reset %s", t);
744 }
745
746 return CLI_OK;
747 }
748
749 static int cmd_show_version(struct cli_def *cli, char *command, char **argv, int argc)
750 {
751 int tag = 0;
752 int file = 0;
753 int i = 0;
754
755 if (CLI_HELP_REQUESTED)
756 return cli_arg_help(cli, 1,
757 "tag", "Include CVS release tag",
758 "file", "Include file versions",
759 NULL);
760
761 for (i = 0; i < argc; i++)
762 if (!strcmp(argv[i], "tag"))
763 tag++;
764 else if (!strcmp(argv[i], "file"))
765 file++;
766
767 cli_print(cli, "L2TPNS %s", VERSION);
768 if (tag)
769 {
770 char const *p = strchr(cvs_name, ':');
771 char const *e;
772 if (p)
773 {
774 p++;
775 while (isspace(*p))
776 p++;
777 }
778
779 if (!p || *p == '$')
780 p = "HEAD";
781
782 e = strpbrk(p, " \t$");
783 cli_print(cli, "Tag: %.*s", (int) (e ? e - p + 1 : strlen(p)), p);
784 }
785
786 if (file)
787 {
788 extern linked_list *loaded_plugins;
789 void *p;
790
791 cli_print(cli, "Files:");
792 cli_print(cli, " %s", cvs_id_arp);
793 #ifdef BGP
794 cli_print(cli, " %s", cvs_id_bgp);
795 #endif /* BGP */
796 cli_print(cli, " %s", cvs_id_cli);
797 cli_print(cli, " %s", cvs_id_cluster);
798 cli_print(cli, " %s", cvs_id_constants);
799 cli_print(cli, " %s", cvs_id_control);
800 cli_print(cli, " %s", cvs_id_icmp);
801 cli_print(cli, " %s", cvs_id_l2tpns);
802 cli_print(cli, " %s", cvs_id_ll);
803 cli_print(cli, " %s", cvs_id_md5);
804 cli_print(cli, " %s", cvs_id_ppp);
805 cli_print(cli, " %s", cvs_id_radius);
806 cli_print(cli, " %s", cvs_id_tbf);
807 cli_print(cli, " %s", cvs_id_util);
808
809 ll_reset(loaded_plugins);
810 while ((p = ll_next(loaded_plugins)))
811 {
812 char const **id = dlsym(p, "cvs_id");
813 if (id)
814 cli_print(cli, " %s", *id);
815 }
816 }
817
818 return CLI_OK;
819 }
820
821 static int cmd_show_pool(struct cli_def *cli, char *command, char **argv, int argc)
822 {
823 int i;
824 int used = 0, free = 0, show_all = 0;
825
826 if (!config->cluster_iam_master)
827 {
828 cli_print(cli, "Can't do this on a slave. Do it on %s",
829 fmtaddr(config->cluster_master_address, 0));
830
831 return CLI_OK;
832 }
833
834 if (CLI_HELP_REQUESTED)
835 {
836 if (argc > 1)
837 return cli_arg_help(cli, 1, NULL);
838
839 return cli_arg_help(cli, 1,
840 "all", "Show all pool addresses, including unused",
841 NULL);
842 }
843
844 if (argc > 0 && strcmp(argv[0], "all") == 0)
845 show_all = 1;
846
847 time(&time_now);
848 cli_print(cli, "%-15s %4s %8s %s", "IP Address", "Used", "Session", "User");
849 for (i = 0; i < MAXIPPOOL; i++)
850 {
851 if (!ip_address_pool[i].address) continue;
852 if (ip_address_pool[i].assigned)
853 {
854 cli_print(cli, "%-15s\tY %8d %s",
855 fmtaddr(htonl(ip_address_pool[i].address), 0),
856 ip_address_pool[i].session,
857 session[ip_address_pool[i].session].user);
858
859 used++;
860 }
861 else
862 {
863 if (ip_address_pool[i].last)
864 cli_print(cli, "%-15s\tN %8s [%s] %ds",
865 fmtaddr(htonl(ip_address_pool[i].address), 0), "",
866 ip_address_pool[i].user, (int) time_now - ip_address_pool[i].last);
867
868 else if (show_all)
869 cli_print(cli, "%-15s\tN", fmtaddr(htonl(ip_address_pool[i].address), 0));
870
871 free++;
872 }
873 }
874
875 if (!show_all)
876 cli_print(cli, "(Not displaying unused addresses)");
877
878 cli_print(cli, "\r\nFree: %d\r\nUsed: %d", free, used);
879 return CLI_OK;
880 }
881
882 static FILE *save_config_fh = 0;
883 static void print_save_config(struct cli_def *cli, char *string)
884 {
885 if (save_config_fh)
886 fprintf(save_config_fh, "%s\n", string);
887 }
888
889 static int cmd_write_memory(struct cli_def *cli, char *command, char **argv, int argc)
890 {
891 if (CLI_HELP_REQUESTED)
892 return CLI_HELP_NO_ARGS;
893
894 if ((save_config_fh = fopen(config->config_file, "w")))
895 {
896 cli_print(cli, "Writing configuration");
897 cli_print_callback(cli, print_save_config);
898 cmd_show_run(cli, command, argv, argc);
899 cli_print_callback(cli, NULL);
900 fclose(save_config_fh);
901 save_config_fh = 0;
902 }
903 else
904 {
905 cli_print(cli, "Error writing configuration: %s", strerror(errno));
906 }
907 return CLI_OK;
908 }
909
910 static char const *show_access_list_rule(int extended, ip_filter_rulet *rule);
911
912 static int cmd_show_run(struct cli_def *cli, char *command, char **argv, int argc)
913 {
914 int i;
915 char ipv6addr[INET6_ADDRSTRLEN];
916
917 if (CLI_HELP_REQUESTED)
918 return CLI_HELP_NO_ARGS;
919
920 cli_print(cli, "# Current configuration:");
921
922 for (i = 0; config_values[i].key; i++)
923 {
924 void *value = ((void *)config) + config_values[i].offset;
925 if (config_values[i].type == STRING)
926 cli_print(cli, "set %s \"%.*s\"", config_values[i].key, config_values[i].size, (char *) value);
927 else if (config_values[i].type == IPv4)
928 cli_print(cli, "set %s %s", config_values[i].key, fmtaddr(*(in_addr_t *) value, 0));
929 else if (config_values[i].type == IPv6)
930 cli_print(cli, "set %s %s", config_values[i].key, inet_ntop(AF_INET6, value, ipv6addr, INET6_ADDRSTRLEN));
931 else if (config_values[i].type == SHORT)
932 cli_print(cli, "set %s %hu", config_values[i].key, *(short *) value);
933 else if (config_values[i].type == BOOL)
934 cli_print(cli, "set %s %s", config_values[i].key, (*(int *) value) ? "yes" : "no");
935 else if (config_values[i].type == INT)
936 cli_print(cli, "set %s %d", config_values[i].key, *(int *) value);
937 else if (config_values[i].type == UNSIGNED_LONG)
938 cli_print(cli, "set %s %lu", config_values[i].key, *(unsigned long *) value);
939 else if (config_values[i].type == MAC)
940 cli_print(cli, "set %s %02x%02x.%02x%02x.%02x%02x", config_values[i].key,
941 *(unsigned short *) (value + 0),
942 *(unsigned short *) (value + 1),
943 *(unsigned short *) (value + 2),
944 *(unsigned short *) (value + 3),
945 *(unsigned short *) (value + 4),
946 *(unsigned short *) (value + 5));
947 }
948
949 cli_print(cli, "# Plugins");
950 for (i = 0; i < MAXPLUGINS; i++)
951 {
952 if (*config->plugins[i])
953 {
954 cli_print(cli, "load plugin \"%s\"", config->plugins[i]);
955 }
956 }
957
958 #ifdef BGP
959 if (config->as_number)
960 {
961 int k;
962 int h;
963
964 cli_print(cli, "# BGP");
965 cli_print(cli, "router bgp %u", config->as_number);
966 for (i = 0; i < BGP_NUM_PEERS; i++)
967 {
968 if (!config->neighbour[i].name[0])
969 continue;
970
971 cli_print(cli, " neighbour %s remote-as %u", config->neighbour[i].name, config->neighbour[i].as);
972
973 k = config->neighbour[i].keepalive;
974 h = config->neighbour[i].hold;
975
976 if (k == -1)
977 {
978 if (h == -1)
979 continue;
980
981 k = BGP_KEEPALIVE_TIME;
982 }
983
984 if (h == -1)
985 h = BGP_HOLD_TIME;
986
987 cli_print(cli, " neighbour %s timers %d %d", config->neighbour[i].name, k, h);
988 }
989 }
990 #endif
991
992 cli_print(cli, "# Filters");
993 for (i = 0; i < MAXFILTER; i++)
994 {
995 ip_filter_rulet *rules;
996 if (!*ip_filters[i].name)
997 continue;
998
999 cli_print(cli, "ip access-list %s %s",
1000 ip_filters[i].extended ? "extended" : "standard",
1001 ip_filters[i].name);
1002
1003 rules = ip_filters[i].rules;
1004 while (rules->action)
1005 cli_print(cli, "%s", show_access_list_rule(ip_filters[i].extended, rules++));
1006 }
1007
1008 cli_print(cli, "# end");
1009 return CLI_OK;
1010 }
1011
1012 static int cmd_show_radius(struct cli_def *cli, char *command, char **argv, int argc)
1013 {
1014 int i, free = 0, used = 0, show_all = 0;
1015 char *states[] = {
1016 "NULL",
1017 "CHAP",
1018 "AUTH",
1019 "IPCP",
1020 "START",
1021 "STOP",
1022 "WAIT",
1023 };
1024
1025 if (CLI_HELP_REQUESTED)
1026 {
1027 if (argc > 1)
1028 return cli_arg_help(cli, 1, NULL);
1029
1030 return cli_arg_help(cli, 1,
1031 "all", "Show all RADIUS sessions, including unused",
1032 NULL);
1033 }
1034
1035 cli_print(cli, "%6s%7s%5s%6s%9s%9s%4s", "ID", "Radius", "Sock", "State", "Session", "Retry", "Try");
1036
1037 time(&time_now);
1038
1039 if (argc > 0 && strcmp(argv[0], "all") == 0)
1040 show_all = 1;
1041
1042 for (i = 1; i < MAXRADIUS; i++)
1043 {
1044 if (radius[i].state == RADIUSNULL)
1045 free++;
1046 else
1047 used++;
1048
1049 if (!show_all && radius[i].state == RADIUSNULL) continue;
1050
1051 cli_print(cli, "%6d%7d%5d%6s%9d%9u%4d",
1052 i,
1053 i >> RADIUS_SHIFT,
1054 i & RADIUS_MASK,
1055 states[radius[i].state],
1056 radius[i].session,
1057 radius[i].retry,
1058 radius[i].try);
1059 }
1060
1061 cli_print(cli, "\r\nFree: %d\r\nUsed: %d", free, used);
1062
1063 return CLI_OK;
1064 }
1065
1066 static int cmd_show_plugins(struct cli_def *cli, char *command, char **argv, int argc)
1067 {
1068 int i;
1069
1070 if (CLI_HELP_REQUESTED)
1071 return CLI_HELP_NO_ARGS;
1072
1073 cli_print(cli, "Plugins currently loaded:");
1074 for (i = 0; i < MAXPLUGINS; i++)
1075 if (*config->plugins[i])
1076 cli_print(cli, " %s", config->plugins[i]);
1077
1078 return CLI_OK;
1079 }
1080
1081 static int cmd_show_throttle(struct cli_def *cli, char *command, char **argv, int argc)
1082 {
1083 int i;
1084
1085 if (CLI_HELP_REQUESTED)
1086 return CLI_HELP_NO_ARGS;
1087
1088 cli_print(cli, "%5s %4s %-32s %7s %6s %6s %6s",
1089 "SID",
1090 "TID",
1091 "Username",
1092 "Rate In",
1093 "Out",
1094 "TBFI",
1095 "TBFO");
1096
1097 for (i = 0; i < MAXSESSION; i++)
1098 {
1099 if (session[i].throttle_in || session[i].throttle_out)
1100 cli_print(cli, "%5d %4d %-32s %6d %6d %6d %6d",
1101 i,
1102 session[i].tunnel,
1103 session[i].user,
1104 session[i].throttle_in,
1105 session[i].throttle_out,
1106 session[i].tbf_in,
1107 session[i].tbf_out);
1108 }
1109
1110 return CLI_OK;
1111 }
1112
1113 static int cmd_show_banana(struct cli_def *cli, char *command, char **argv, int argc)
1114 {
1115 if (CLI_HELP_REQUESTED)
1116 return CLI_HELP_NO_ARGS;
1117
1118 cli_print(cli, " _\n"
1119 "//\\\n"
1120 "V \\\n"
1121 " \\ \\_\n"
1122 " \\,'.`-.\n"
1123 " |\\ `. `.\n"
1124 " ( \\ `. `-. _,.-:\\\n"
1125 " \\ \\ `. `-._ __..--' ,-';/\n"
1126 " \\ `. `-. `-..___..---' _.--' ,'/\n"
1127 " `. `. `-._ __..--' ,' /\n"
1128 " `. `-_ ``--..'' _.-' ,'\n"
1129 " `-_ `-.___ __,--' ,'\n"
1130 " `-.__ `----\"\"\" __.-'\n"
1131 "hh `--..____..--'");
1132
1133 return CLI_OK;
1134 }
1135
1136 static int cmd_clear_counters(struct cli_def *cli, char *command, char **argv, int argc)
1137 {
1138 if (CLI_HELP_REQUESTED)
1139 return CLI_HELP_NO_ARGS;
1140
1141 memset(_statistics, 0, sizeof(struct Tstats));
1142 SET_STAT(last_reset, time(NULL));
1143
1144 cli_print(cli, "Counters cleared");
1145 return CLI_OK;
1146 }
1147
1148 static int cmd_drop_user(struct cli_def *cli, char *command, char **argv, int argc)
1149 {
1150 int i;
1151 sessionidt s;
1152
1153 if (CLI_HELP_REQUESTED)
1154 return cli_arg_help(cli, argc > 1,
1155 "USER", "Username of session to drop", NULL);
1156
1157 if (!config->cluster_iam_master)
1158 {
1159 cli_print(cli, "Can't do this on a slave. Do it on %s",
1160 fmtaddr(config->cluster_master_address, 0));
1161
1162 return CLI_OK;
1163 }
1164
1165 if (!argc)
1166 {
1167 cli_print(cli, "Specify a user to drop");
1168 return CLI_OK;
1169 }
1170
1171 for (i = 0; i < argc; i++)
1172 {
1173 if (!(s = sessionbyuser(argv[i])))
1174 {
1175 cli_print(cli, "User %s is not connected", argv[i]);
1176 continue;
1177 }
1178
1179 if (session[s].ip && session[s].opened && !session[s].die)
1180 {
1181 cli_print(cli, "Dropping user %s", session[s].user);
1182 cli_session_actions[s].action |= CLI_SESS_KILL;
1183 }
1184 }
1185
1186 return CLI_OK;
1187 }
1188
1189 static int cmd_drop_tunnel(struct cli_def *cli, char *command, char **argv, int argc)
1190 {
1191 int i;
1192 tunnelidt t;
1193
1194 if (CLI_HELP_REQUESTED)
1195 return cli_arg_help(cli, argc > 1,
1196 "<1-%d>", MAXTUNNEL-1, "Tunnel id to drop", NULL);
1197
1198 if (!config->cluster_iam_master)
1199 {
1200 cli_print(cli, "Can't do this on a slave. Do it on %s",
1201 fmtaddr(config->cluster_master_address, 0));
1202
1203 return CLI_OK;
1204 }
1205
1206 if (!argc)
1207 {
1208 cli_print(cli, "Specify a tunnel to drop");
1209 return CLI_OK;
1210 }
1211
1212 for (i = 0; i < argc; i++)
1213 {
1214 if ((t = atol(argv[i])) <= 0 || (t >= MAXTUNNEL))
1215 {
1216 cli_print(cli, "Invalid tunnel ID (1-%d)", MAXTUNNEL-1);
1217 continue;
1218 }
1219
1220 if (!tunnel[t].ip)
1221 {
1222 cli_print(cli, "Tunnel %d is not connected", t);
1223 continue;
1224 }
1225
1226 if (tunnel[t].die)
1227 {
1228 cli_print(cli, "Tunnel %d is already being shut down", t);
1229 continue;
1230 }
1231
1232 cli_print(cli, "Tunnel %d shut down (%s)", t, tunnel[t].hostname);
1233 cli_tunnel_actions[t].action |= CLI_TUN_KILL;
1234 }
1235
1236 return CLI_OK;
1237 }
1238
1239 static int cmd_drop_session(struct cli_def *cli, char *command, char **argv, int argc)
1240 {
1241 int i;
1242 sessionidt s;
1243
1244 if (CLI_HELP_REQUESTED)
1245 return cli_arg_help(cli, argc > 1,
1246 "<1-%d>", MAXSESSION-1, "Session id to drop", NULL);
1247
1248 if (!config->cluster_iam_master)
1249 {
1250 cli_print(cli, "Can't do this on a slave. Do it on %s",
1251 fmtaddr(config->cluster_master_address, 0));
1252
1253 return CLI_OK;
1254 }
1255
1256 if (!argc)
1257 {
1258 cli_print(cli, "Specify a session id to drop");
1259 return CLI_OK;
1260 }
1261
1262 for (i = 0; i < argc; i++)
1263 {
1264 if ((s = atol(argv[i])) <= 0 || (s > MAXSESSION))
1265 {
1266 cli_print(cli, "Invalid session ID (1-%d)", MAXSESSION-1);
1267 continue;
1268 }
1269
1270 if (session[s].ip && session[s].opened && !session[s].die)
1271 {
1272 cli_print(cli, "Dropping session %d", s);
1273 cli_session_actions[s].action |= CLI_SESS_KILL;
1274 }
1275 else
1276 {
1277 cli_print(cli, "Session %d is not active.", s);
1278 }
1279 }
1280
1281 return CLI_OK;
1282 }
1283
1284 static int cmd_snoop(struct cli_def *cli, char *command, char **argv, int argc)
1285 {
1286 in_addr_t ip;
1287 uint16_t port;
1288 sessionidt s;
1289
1290 if (CLI_HELP_REQUESTED)
1291 {
1292 switch (argc)
1293 {
1294 case 1:
1295 return cli_arg_help(cli, 0,
1296 "USER", "Username of session to snoop", NULL);
1297
1298 case 2:
1299 return cli_arg_help(cli, 0,
1300 "A.B.C.D", "IP address of snoop destination", NULL);
1301
1302 case 3:
1303 return cli_arg_help(cli, 0,
1304 "N", "Port of snoop destination", NULL);
1305
1306 case 4:
1307 if (!argv[3][1])
1308 return cli_arg_help(cli, 1, NULL);
1309
1310 default:
1311 return CLI_OK;
1312 }
1313 }
1314
1315 if (!config->cluster_iam_master)
1316 {
1317 cli_print(cli, "Can't do this on a slave. Do it on %s",
1318 fmtaddr(config->cluster_master_address, 0));
1319
1320 return CLI_OK;
1321 }
1322
1323 if (argc < 3)
1324 {
1325 cli_print(cli, "Specify username, ip and port");
1326 return CLI_OK;
1327 }
1328
1329 if (!(s = sessionbyuser(argv[0])))
1330 {
1331 cli_print(cli, "User %s is not connected", argv[0]);
1332 return CLI_OK;
1333 }
1334
1335 ip = inet_addr(argv[1]);
1336 if (!ip || ip == INADDR_NONE)
1337 {
1338 cli_print(cli, "Cannot parse IP \"%s\"", argv[1]);
1339 return CLI_OK;
1340 }
1341
1342 port = atoi(argv[2]);
1343 if (!port)
1344 {
1345 cli_print(cli, "Invalid port %s", argv[2]);
1346 return CLI_OK;
1347 }
1348
1349 cli_print(cli, "Snooping user %s to %s:%d", argv[0], fmtaddr(ip, 0), port);
1350 cli_session_actions[s].snoop_ip = ip;
1351 cli_session_actions[s].snoop_port = port;
1352 cli_session_actions[s].action |= CLI_SESS_SNOOP;
1353
1354 return CLI_OK;
1355 }
1356
1357 static int cmd_no_snoop(struct cli_def *cli, char *command, char **argv, int argc)
1358 {
1359 int i;
1360 sessionidt s;
1361
1362 if (CLI_HELP_REQUESTED)
1363 return cli_arg_help(cli, argc > 1,
1364 "USER", "Username of session to unsnoop", NULL);
1365
1366 if (!config->cluster_iam_master)
1367 {
1368 cli_print(cli, "Can't do this on a slave. Do it on %s",
1369 fmtaddr(config->cluster_master_address, 0));
1370
1371 return CLI_OK;
1372 }
1373
1374 if (!argc)
1375 {
1376 cli_print(cli, "Specify a user to unsnoop");
1377 return CLI_OK;
1378 }
1379
1380 for (i = 0; i < argc; i++)
1381 {
1382 if (!(s = sessionbyuser(argv[i])))
1383 {
1384 cli_print(cli, "User %s is not connected", argv[i]);
1385 continue;
1386 }
1387
1388 cli_print(cli, "Not snooping user %s", argv[i]);
1389 cli_session_actions[s].action |= CLI_SESS_NOSNOOP;
1390 }
1391
1392 return CLI_OK;
1393 }
1394
1395 static int cmd_throttle(struct cli_def *cli, char *command, char **argv, int argc)
1396 {
1397 int rate_in = 0;
1398 int rate_out = 0;
1399 sessionidt s;
1400
1401 /*
1402 throttle USER - throttle in/out to default rate
1403 throttle USER RATE - throttle in/out to default rate
1404 throttle USER in RATE - throttle input only
1405 throttle USER out RATE - throttle output only
1406 throttle USER in RATE out RATE - throttle both
1407 */
1408
1409 if (CLI_HELP_REQUESTED)
1410 {
1411 switch (argc)
1412 {
1413 case 1:
1414 return cli_arg_help(cli, 0,
1415 "USER", "Username of session to throttle", NULL);
1416
1417 case 2:
1418 return cli_arg_help(cli, 1,
1419 "RATE", "Rate in kbps (in and out)",
1420 "in", "Select incoming rate",
1421 "out", "Select outgoing rate", NULL);
1422
1423 case 4:
1424 return cli_arg_help(cli, 1,
1425 "in", "Select incoming rate",
1426 "out", "Select outgoing rate", NULL);
1427
1428 case 3:
1429 if (isdigit(argv[1][0]))
1430 return cli_arg_help(cli, 1, NULL);
1431
1432 case 5:
1433 return cli_arg_help(cli, 0, "RATE", "Rate in kbps", NULL);
1434
1435 default:
1436 return cli_arg_help(cli, argc > 1, NULL);
1437 }
1438 }
1439
1440 if (!config->cluster_iam_master)
1441 {
1442 cli_print(cli, "Can't do this on a slave. Do it on %s",
1443 fmtaddr(config->cluster_master_address, 0));
1444
1445 return CLI_OK;
1446 }
1447
1448 if (argc == 0)
1449 {
1450 cli_print(cli, "Specify a user to throttle");
1451 return CLI_OK;
1452 }
1453
1454 if (!(s = sessionbyuser(argv[0])))
1455 {
1456 cli_print(cli, "User %s is not connected", argv[0]);
1457 return CLI_OK;
1458 }
1459
1460 if (argc == 1)
1461 {
1462 rate_in = rate_out = config->rl_rate;
1463 }
1464 else if (argc == 2)
1465 {
1466 rate_in = rate_out = atoi(argv[1]);
1467 if (rate_in < 1)
1468 {
1469 cli_print(cli, "Invalid rate \"%s\"", argv[1]);
1470 return CLI_OK;
1471 }
1472 }
1473 else if (argc == 3 || argc == 5)
1474 {
1475 int i;
1476 for (i = 1; i < argc - 1; i += 2)
1477 {
1478 int r = 0;
1479 if (MATCH("in", argv[i]))
1480 r = rate_in = atoi(argv[i+1]);
1481 else if (MATCH("out", argv[i]))
1482 r = rate_out = atoi(argv[i+1]);
1483
1484 if (r < 1)
1485 {
1486 cli_print(cli, "Invalid rate specification \"%s %s\"", argv[i], argv[i+1]);
1487 return CLI_OK;
1488 }
1489 }
1490 }
1491 else
1492 {
1493 cli_print(cli, "Invalid arguments");
1494 return CLI_OK;
1495 }
1496
1497 if ((rate_in && session[s].throttle_in) || (rate_out && session[s].throttle_out))
1498 {
1499 cli_print(cli, "User %s already throttled, unthrottle first", argv[0]);
1500 return CLI_OK;
1501 }
1502
1503 cli_session_actions[s].throttle_in = cli_session_actions[s].throttle_out = -1;
1504 if (rate_in && session[s].throttle_in != rate_in)
1505 cli_session_actions[s].throttle_in = rate_in;
1506
1507 if (rate_out && session[s].throttle_out != rate_out)
1508 cli_session_actions[s].throttle_out = rate_out;
1509
1510 if (cli_session_actions[s].throttle_in == -1 &&
1511 cli_session_actions[s].throttle_out == -1)
1512 {
1513 cli_print(cli, "User %s already throttled at this rate", argv[0]);
1514 return CLI_OK;
1515 }
1516
1517 cli_print(cli, "Throttling user %s", argv[0]);
1518 cli_session_actions[s].action |= CLI_SESS_THROTTLE;
1519
1520 return CLI_OK;
1521 }
1522
1523 static int cmd_no_throttle(struct cli_def *cli, char *command, char **argv, int argc)
1524 {
1525 int i;
1526 sessionidt s;
1527
1528 if (CLI_HELP_REQUESTED)
1529 return cli_arg_help(cli, argc > 1,
1530 "USER", "Username of session to unthrottle", NULL);
1531
1532 if (!config->cluster_iam_master)
1533 {
1534 cli_print(cli, "Can't do this on a slave. Do it on %s",
1535 fmtaddr(config->cluster_master_address, 0));
1536
1537 return CLI_OK;
1538 }
1539
1540 if (!argc)
1541 {
1542 cli_print(cli, "Specify a user to unthrottle");
1543 return CLI_OK;
1544 }
1545
1546 for (i = 0; i < argc; i++)
1547 {
1548 if (!(s = sessionbyuser(argv[i])))
1549 {
1550 cli_print(cli, "User %s is not connected", argv[i]);
1551 continue;
1552 }
1553
1554 if (session[s].throttle_in || session[s].throttle_out)
1555 {
1556 cli_print(cli, "Unthrottling user %s", argv[i]);
1557 cli_session_actions[s].action |= CLI_SESS_NOTHROTTLE;
1558 }
1559 else
1560 {
1561 cli_print(cli, "User %s not throttled", argv[i]);
1562 }
1563 }
1564
1565 return CLI_OK;
1566 }
1567
1568 static int cmd_debug(struct cli_def *cli, char *command, char **argv, int argc)
1569 {
1570 int i;
1571
1572 if (CLI_HELP_REQUESTED)
1573 return cli_arg_help(cli, 1,
1574 "all", "Enable debugging for all except \"data\"",
1575 "critical", "", // FIXME: add descriptions
1576 "error", "",
1577 "warning", "",
1578 "info", "",
1579 "calls", "",
1580 "data", "",
1581 NULL);
1582
1583 if (!argc)
1584 {
1585 char *p = (char *) &debug_flags;
1586 for (i = 0; i < sizeof(debug_flags); i++)
1587 {
1588 if (p[i])
1589 {
1590 cli_print(cli, "Currently debugging:%s%s%s%s%s%s",
1591 (debug_flags.critical) ? " critical" : "",
1592 (debug_flags.error) ? " error" : "",
1593 (debug_flags.warning) ? " warning" : "",
1594 (debug_flags.info) ? " info" : "",
1595 (debug_flags.calls) ? " calls" : "",
1596 (debug_flags.data) ? " data" : "");
1597
1598 return CLI_OK;
1599 }
1600 }
1601
1602 cli_print(cli, "Debugging off");
1603 return CLI_OK;
1604 }
1605
1606 for (i = 0; i < argc; i++)
1607 {
1608 int len = strlen(argv[i]);
1609
1610 if (argv[i][0] == 'c' && len < 2)
1611 len = 2; /* distinguish [cr]itical from [ca]lls */
1612
1613 if (!strncmp("critical", argv[i], len)) { debug_flags.critical = 1; continue; }
1614 if (!strncmp("error", argv[i], len)) { debug_flags.error = 1; continue; }
1615 if (!strncmp("warning", argv[i], len)) { debug_flags.warning = 1; continue; }
1616 if (!strncmp("info", argv[i], len)) { debug_flags.info = 1; continue; }
1617 if (!strncmp("calls", argv[i], len)) { debug_flags.calls = 1; continue; }
1618 if (!strncmp("data", argv[i], len)) { debug_flags.data = 1; continue; }
1619 if (!strncmp("all", argv[i], len))
1620 {
1621 memset(&debug_flags, 1, sizeof(debug_flags));
1622 debug_flags.data = 0;
1623 continue;
1624 }
1625
1626 cli_print(cli, "Invalid debugging flag \"%s\"", argv[i]);
1627 }
1628
1629 return CLI_OK;
1630 }
1631
1632 static int cmd_no_debug(struct cli_def *cli, char *command, char **argv, int argc)
1633 {
1634 int i;
1635
1636 if (CLI_HELP_REQUESTED)
1637 return cli_arg_help(cli, 1,
1638 "all", "Disable all debugging",
1639 "critical", "", // FIXME: add descriptions
1640 "error", "",
1641 "warning", "",
1642 "info", "",
1643 "calls", "",
1644 "data", "",
1645 NULL);
1646
1647 if (!argc)
1648 {
1649 memset(&debug_flags, 0, sizeof(debug_flags));
1650 return CLI_OK;
1651 }
1652
1653 for (i = 0; i < argc; i++)
1654 {
1655 int len = strlen(argv[i]);
1656
1657 if (argv[i][0] == 'c' && len < 2)
1658 len = 2; /* distinguish [cr]itical from [ca]lls */
1659
1660 if (!strncmp("critical", argv[i], len)) { debug_flags.critical = 0; continue; }
1661 if (!strncmp("error", argv[i], len)) { debug_flags.error = 0; continue; }
1662 if (!strncmp("warning", argv[i], len)) { debug_flags.warning = 0; continue; }
1663 if (!strncmp("info", argv[i], len)) { debug_flags.info = 0; continue; }
1664 if (!strncmp("calls", argv[i], len)) { debug_flags.calls = 0; continue; }
1665 if (!strncmp("data", argv[i], len)) { debug_flags.data = 0; continue; }
1666 if (!strncmp("all", argv[i], len))
1667 {
1668 memset(&debug_flags, 0, sizeof(debug_flags));
1669 continue;
1670 }
1671
1672 cli_print(cli, "Invalid debugging flag \"%s\"", argv[i]);
1673 }
1674
1675 return CLI_OK;
1676 }
1677
1678 static int cmd_load_plugin(struct cli_def *cli, char *command, char **argv, int argc)
1679 {
1680 int i, firstfree = 0;
1681
1682 if (CLI_HELP_REQUESTED)
1683 return cli_arg_help(cli, argc > 1,
1684 "PLUGIN", "Name of plugin to load", NULL);
1685
1686 if (argc != 1)
1687 {
1688 cli_print(cli, "Specify a plugin to load");
1689 return CLI_OK;
1690 }
1691
1692 for (i = 0; i < MAXPLUGINS; i++)
1693 {
1694 if (!*config->plugins[i] && !firstfree)
1695 firstfree = i;
1696 if (strcmp(config->plugins[i], argv[0]) == 0)
1697 {
1698 cli_print(cli, "Plugin is already loaded");
1699 return CLI_OK;
1700 }
1701 }
1702
1703 if (firstfree)
1704 {
1705 strncpy(config->plugins[firstfree], argv[0], sizeof(config->plugins[firstfree]) - 1);
1706 config->reload_config = 1;
1707 cli_print(cli, "Loading plugin %s", argv[0]);
1708 }
1709
1710 return CLI_OK;
1711 }
1712
1713 static int cmd_remove_plugin(struct cli_def *cli, char *command, char **argv, int argc)
1714 {
1715 int i;
1716
1717 if (CLI_HELP_REQUESTED)
1718 return cli_arg_help(cli, argc > 1,
1719 "PLUGIN", "Name of plugin to unload", NULL);
1720
1721 if (argc != 1)
1722 {
1723 cli_print(cli, "Specify a plugin to remove");
1724 return CLI_OK;
1725 }
1726
1727 for (i = 0; i < MAXPLUGINS; i++)
1728 {
1729 if (strcmp(config->plugins[i], argv[0]) == 0)
1730 {
1731 config->reload_config = 1;
1732 memset(config->plugins[i], 0, sizeof(config->plugins[i]));
1733 return CLI_OK;
1734 }
1735 }
1736
1737 cli_print(cli, "Plugin is not loaded");
1738 return CLI_OK;
1739 }
1740
1741 static char *duration(time_t secs)
1742 {
1743 static char *buf = NULL;
1744 int p = 0;
1745
1746 if (!buf) buf = calloc(64, 1);
1747
1748 if (secs >= 86400)
1749 {
1750 int days = secs / 86400;
1751 p = sprintf(buf, "%d day%s, ", days, days > 1 ? "s" : "");
1752 secs %= 86400;
1753 }
1754
1755 if (secs >= 3600)
1756 {
1757 int mins = secs / 60;
1758 int hrs = mins / 60;
1759
1760 mins %= 60;
1761 sprintf(buf + p, "%d:%02d", hrs, mins);
1762 }
1763 else if (secs >= 60)
1764 {
1765 int mins = secs / 60;
1766 sprintf(buf + p, "%d min%s", mins, mins > 1 ? "s" : "");
1767 }
1768 else
1769 sprintf(buf, "%ld sec%s", secs, secs > 1 ? "s" : "");
1770
1771 return buf;
1772 }
1773
1774 static int cmd_uptime(struct cli_def *cli, char *command, char **argv, int argc)
1775 {
1776 FILE *fh;
1777 char buf[100], *p = buf, *loads[3];
1778 int i, num_sessions = 0;
1779
1780 if (CLI_HELP_REQUESTED)
1781 return CLI_HELP_NO_ARGS;
1782
1783 fh = fopen("/proc/loadavg", "r");
1784 fgets(buf, 100, fh);
1785 fclose(fh);
1786
1787 for (i = 0; i < 3; i++)
1788 loads[i] = strdup(strsep(&p, " "));
1789
1790 time(&time_now);
1791 strftime(buf, 99, "%H:%M:%S", localtime(&time_now));
1792
1793 for (i = 1; i < MAXSESSION; i++)
1794 if (session[i].opened) num_sessions++;
1795
1796 cli_print(cli, "%s up %s, %d users, load average: %s, %s, %s",
1797 buf,
1798 duration(time_now - config->start_time),
1799 num_sessions,
1800 loads[0], loads[1], loads[2]
1801 );
1802 for (i = 0; i < 3; i++)
1803 if (loads[i]) free(loads[i]);
1804
1805 cli_print(cli, "Bandwidth: %s", config->bandwidth);
1806
1807 return CLI_OK;
1808 }
1809
1810 static int cmd_set(struct cli_def *cli, char *command, char **argv, int argc)
1811 {
1812 int i;
1813
1814 if (CLI_HELP_REQUESTED)
1815 {
1816 switch (argc)
1817 {
1818 case 1:
1819 {
1820 int len = strlen(argv[0])-1;
1821 for (i = 0; config_values[i].key; i++)
1822 if (!len || !strncmp(config_values[i].key, argv[0], len))
1823 cli_print(cli, " %s", config_values[i].key);
1824 }
1825
1826 return CLI_OK;
1827
1828 case 2:
1829 return cli_arg_help(cli, 0,
1830 "VALUE", "Value for variable", NULL);
1831
1832 case 3:
1833 if (!argv[2][1])
1834 return cli_arg_help(cli, 1, NULL);
1835
1836 default:
1837 return CLI_OK;
1838 }
1839 }
1840
1841 if (argc != 2)
1842 {
1843 cli_print(cli, "Specify variable and value");
1844 return CLI_OK;
1845 }
1846
1847 for (i = 0; config_values[i].key; i++)
1848 {
1849 void *value = ((void *) config) + config_values[i].offset;
1850 if (strcmp(config_values[i].key, argv[0]) == 0)
1851 {
1852 // Found a value to set
1853 cli_print(cli, "Setting \"%s\" to \"%s\"", argv[0], argv[1]);
1854 switch (config_values[i].type)
1855 {
1856 case STRING:
1857 snprintf((char *) value, config_values[i].size, "%s", argv[1]);
1858 break;
1859 case INT:
1860 *(int *) value = atoi(argv[1]);
1861 break;
1862 case UNSIGNED_LONG:
1863 *(unsigned long *) value = atol(argv[1]);
1864 break;
1865 case SHORT:
1866 *(short *) value = atoi(argv[1]);
1867 break;
1868 case IPv4:
1869 *(in_addr_t *) value = inet_addr(argv[1]);
1870 break;
1871 case IPv6:
1872 inet_pton(AF_INET6, argv[1], value);
1873 break;
1874 case MAC:
1875 parsemac(argv[1], (char *)value);
1876 break;
1877 case BOOL:
1878 if (strcasecmp(argv[1], "yes") == 0 || strcasecmp(argv[1], "true") == 0 || strcasecmp(argv[1], "1") == 0)
1879 *(int *) value = 1;
1880 else
1881 *(int *) value = 0;
1882 break;
1883 default:
1884 cli_print(cli, "Unknown variable type");
1885 break;
1886 }
1887 config->reload_config = 1;
1888 return CLI_OK;
1889 }
1890 }
1891
1892 cli_print(cli, "Unknown variable \"%s\"", argv[0]);
1893 return CLI_OK;
1894 }
1895
1896 int regular_stuff(struct cli_def *cli)
1897 {
1898 int out = 0;
1899 int i;
1900
1901 #ifdef RINGBUFFER
1902 for (i = debug_rb_tail; i != ringbuffer->tail; i = (i + 1) % RINGBUFFER_SIZE)
1903 {
1904 char *m = ringbuffer->buffer[i].message;
1905 char *p;
1906 int show = 0;
1907
1908 if (!*m) continue;
1909
1910 switch (ringbuffer->buffer[i].level)
1911 {
1912 case 0: show = debug_flags.critical; break;
1913 case 1: show = debug_flags.error; break;
1914 case 2: show = debug_flags.warning; break;
1915 case 3: show = debug_flags.info; break;
1916 case 4: show = debug_flags.calls; break;
1917 case 5: show = debug_flags.data; break;
1918 }
1919
1920 if (!show) continue;
1921
1922 if (!(p = strchr(m, '\n')))
1923 p = m + strlen(p);
1924
1925 cli_print(cli, "\r%s-%u-%u %.*s",
1926 debug_levels[(int)ringbuffer->buffer[i].level],
1927 ringbuffer->buffer[i].tunnel,
1928 ringbuffer->buffer[i].session,
1929 (int) (p - m), m);
1930
1931 out++;
1932 }
1933
1934 debug_rb_tail = ringbuffer->tail;
1935 if (out)
1936 cli_reprompt(cli);
1937 #endif
1938 return CLI_OK;
1939 }
1940
1941 #ifdef BGP
1942 static int cmd_router_bgp(struct cli_def *cli, char *command, char **argv, int argc)
1943 {
1944 int as;
1945
1946 if (CLI_HELP_REQUESTED)
1947 return cli_arg_help(cli, argc > 1,
1948 "<1-65535>", "Autonomous system number", NULL);
1949
1950 if (argc != 1 || (as = atoi(argv[0])) < 1 || as > 65535)
1951 {
1952 cli_print(cli, "Invalid autonomous system number");
1953 return CLI_OK;
1954 }
1955
1956 if (bgp_configured && as != config->as_number)
1957 {
1958 cli_print(cli, "Can't change local AS on a running system");
1959 return CLI_OK;
1960 }
1961
1962 config->as_number = as;
1963 cli_set_configmode(cli, MODE_CONFIG_BGP, "router");
1964
1965 return CLI_OK;
1966 }
1967
1968 static int find_bgp_neighbour(char const *name)
1969 {
1970 int i;
1971 int new = -1;
1972 struct hostent *h;
1973 in_addr_t addrs[4] = { 0 };
1974 char **a;
1975
1976 if (!(h = gethostbyname(name)) || h->h_addrtype != AF_INET)
1977 return -2;
1978
1979 for (i = 0; i < sizeof(addrs) / sizeof(*addrs) && h->h_addr_list[i]; i++)
1980 memcpy(&addrs[i], h->h_addr_list[i], sizeof(*addrs));
1981
1982 for (i = 0; i < BGP_NUM_PEERS; i++)
1983 {
1984 if (!config->neighbour[i].name[0])
1985 {
1986 if (new == -1) new = i;
1987 continue;
1988 }
1989
1990 if (!strcmp(name, config->neighbour[i].name))
1991 return i;
1992
1993 if (!(h = gethostbyname(config->neighbour[i].name)) || h->h_addrtype != AF_INET)
1994 continue;
1995
1996 for (a = h->h_addr_list; *a; a++)
1997 {
1998 int j;
1999 for (j = 0; j < sizeof(addrs) / sizeof(*addrs) && addrs[j]; j++)
2000 if (!memcmp(&addrs[j], *a, sizeof(*addrs)))
2001 return i;
2002 }
2003 }
2004
2005 return new;
2006 }
2007
2008 static int cmd_router_bgp_neighbour(struct cli_def *cli, char *command, char **argv, int argc)
2009 {
2010 int i;
2011 int keepalive;
2012 int hold;
2013
2014 if (CLI_HELP_REQUESTED)
2015 {
2016 switch (argc)
2017 {
2018 case 1:
2019 return cli_arg_help(cli, 0,
2020 "A.B.C.D", "BGP neighbour address",
2021 "NAME", "BGP neighbour name",
2022 NULL);
2023
2024 case 2:
2025 return cli_arg_help(cli, 0,
2026 "remote-as", "Set remote autonomous system number",
2027 "timers", "Set timers",
2028 NULL);
2029
2030 default:
2031 if (MATCH("remote-as", argv[1]))
2032 return cli_arg_help(cli, argv[2][1], "<1-65535>", "Autonomous system number", NULL);
2033
2034 if (MATCH("timers", argv[1]))
2035 {
2036 if (argc == 3)
2037 return cli_arg_help(cli, 0, "<1-65535>", "Keepalive time", NULL);
2038
2039 if (argc == 4)
2040 return cli_arg_help(cli, argv[3][1], "<3-65535>", "Hold time", NULL);
2041
2042 if (argc == 5 && !argv[4][1])
2043 return cli_arg_help(cli, 1, NULL);
2044 }
2045
2046 return CLI_OK;
2047 }
2048 }
2049
2050 if (argc < 3)
2051 {
2052 cli_print(cli, "Invalid arguments");
2053 return CLI_OK;
2054 }
2055
2056 if ((i = find_bgp_neighbour(argv[0])) == -2)
2057 {
2058 cli_print(cli, "Invalid neighbour");
2059 return CLI_OK;
2060 }
2061
2062 if (i == -1)
2063 {
2064 cli_print(cli, "Too many neighbours (max %d)", BGP_NUM_PEERS);
2065 return CLI_OK;
2066 }
2067
2068 if (MATCH("remote-as", argv[1]))
2069 {
2070 int as = atoi(argv[2]);
2071 if (as < 0 || as > 65535)
2072 {
2073 cli_print(cli, "Invalid autonomous system number");
2074 return CLI_OK;
2075 }
2076
2077 if (!config->neighbour[i].name[0])
2078 {
2079 snprintf(config->neighbour[i].name, sizeof(config->neighbour[i].name), "%s", argv[0]);
2080 config->neighbour[i].keepalive = -1;
2081 config->neighbour[i].hold = -1;
2082 }
2083
2084 config->neighbour[i].as = as;
2085 return CLI_OK;
2086 }
2087
2088 if (argc != 4 || !MATCH("timers", argv[1]))
2089 {
2090 cli_print(cli, "Invalid arguments");
2091 return CLI_OK;
2092 }
2093
2094 if (!config->neighbour[i].name[0])
2095 {
2096 cli_print(cli, "Specify remote-as first");
2097 return CLI_OK;
2098 }
2099
2100 keepalive = atoi(argv[2]);
2101 hold = atoi(argv[3]);
2102
2103 if (keepalive < 1 || keepalive > 65535)
2104 {
2105 cli_print(cli, "Invalid keepalive time");
2106 return CLI_OK;
2107 }
2108
2109 if (hold < 3 || hold > 65535)
2110 {
2111 cli_print(cli, "Invalid hold time");
2112 return CLI_OK;
2113 }
2114
2115 if (keepalive == BGP_KEEPALIVE_TIME)
2116 keepalive = -1; // using default value
2117
2118 if (hold == BGP_HOLD_TIME)
2119 hold = -1;
2120
2121 config->neighbour[i].keepalive = keepalive;
2122 config->neighbour[i].hold = hold;
2123
2124 return CLI_OK;
2125 }
2126
2127 static int cmd_router_bgp_no_neighbour(struct cli_def *cli, char *command, char **argv, int argc)
2128 {
2129 int i;
2130
2131 if (CLI_HELP_REQUESTED)
2132 return cli_arg_help(cli, argc > 0,
2133 "A.B.C.D", "BGP neighbour address",
2134 "NAME", "BGP neighbour name",
2135 NULL);
2136
2137 if (argc != 1)
2138 {
2139 cli_print(cli, "Specify a BGP neighbour");
2140 return CLI_OK;
2141 }
2142
2143 if ((i = find_bgp_neighbour(argv[0])) == -2)
2144 {
2145 cli_print(cli, "Invalid neighbour");
2146 return CLI_OK;
2147 }
2148
2149 if (i < 0 || !config->neighbour[i].name[0])
2150 {
2151 cli_print(cli, "Neighbour %s not configured", argv[0]);
2152 return CLI_OK;
2153 }
2154
2155 memset(&config->neighbour[i], 0, sizeof(config->neighbour[i]));
2156 return CLI_OK;
2157 }
2158
2159 static int cmd_show_bgp(struct cli_def *cli, char *command, char **argv, int argc)
2160 {
2161 int i;
2162 int hdr = 0;
2163 char *addr;
2164
2165 if (!bgp_configured)
2166 return CLI_OK;
2167
2168 if (CLI_HELP_REQUESTED)
2169 return cli_arg_help(cli, 1,
2170 "A.B.C.D", "BGP neighbour address",
2171 "NAME", "BGP neighbour name",
2172 NULL);
2173
2174 cli_print(cli, "BGPv%d router identifier %s, local AS number %d",
2175 BGP_VERSION, fmtaddr(my_address, 0), (int) config->as_number);
2176
2177 time(&time_now);
2178
2179 for (i = 0; i < BGP_NUM_PEERS; i++)
2180 {
2181 if (!*bgp_peers[i].name)
2182 continue;
2183
2184 addr = fmtaddr(bgp_peers[i].addr, 0);
2185 if (argc && strcmp(addr, argv[0]) &&
2186 strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
2187 continue;
2188
2189 if (!hdr++)
2190 {
2191 cli_print(cli, "");
2192 cli_print(cli, "Peer AS Address "
2193 "State Retries Retry in Route Pend Timers");
2194 cli_print(cli, "------------------ ----- --------------- "
2195 "----------- ------- -------- ----- ---- ---------");
2196 }
2197
2198 cli_print(cli, "%-18.18s %5d %15s %-11s %7d %7lds %5s %4s %4d %4d",
2199 bgp_peers[i].name,
2200 bgp_peers[i].as,
2201 addr,
2202 bgp_state_str(bgp_peers[i].state),
2203 bgp_peers[i].retry_count,
2204 bgp_peers[i].retry_time ? bgp_peers[i].retry_time - time_now : 0,
2205 bgp_peers[i].routing ? "yes" : "no",
2206 bgp_peers[i].update_routes ? "yes" : "no",
2207 bgp_peers[i].keepalive,
2208 bgp_peers[i].hold);
2209 }
2210
2211 return CLI_OK;
2212 }
2213
2214 static int cmd_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc)
2215 {
2216 int i;
2217 char *addr;
2218
2219 if (!bgp_configured)
2220 return CLI_OK;
2221
2222 if (CLI_HELP_REQUESTED)
2223 return cli_arg_help(cli, 1,
2224 "A.B.C.D", "BGP neighbour address",
2225 "NAME", "BGP neighbour name",
2226 NULL);
2227
2228 for (i = 0; i < BGP_NUM_PEERS; i++)
2229 {
2230 if (bgp_peers[i].state != Established)
2231 continue;
2232
2233 if (!bgp_peers[i].routing)
2234 continue;
2235
2236 addr = fmtaddr(bgp_peers[i].addr, 0);
2237 if (argc && strcmp(addr, argv[0]) && strcmp(bgp_peers[i].name, argv[0]))
2238 continue;
2239
2240 bgp_peers[i].cli_flag = BGP_CLI_SUSPEND;
2241 cli_print(cli, "Suspending peer %s", bgp_peers[i].name);
2242 }
2243
2244 return CLI_OK;
2245 }
2246
2247 static int cmd_no_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc)
2248 {
2249 int i;
2250 char *addr;
2251
2252 if (!bgp_configured)
2253 return CLI_OK;
2254
2255 if (CLI_HELP_REQUESTED)
2256 return cli_arg_help(cli, 1,
2257 "A.B.C.D", "BGP neighbour address",
2258 "NAME", "BGP neighbour name",
2259 NULL);
2260
2261 for (i = 0; i < BGP_NUM_PEERS; i++)
2262 {
2263 if (bgp_peers[i].state != Established)
2264 continue;
2265
2266 if (bgp_peers[i].routing)
2267 continue;
2268
2269 addr = fmtaddr(bgp_peers[i].addr, 0);
2270 if (argc && strcmp(addr, argv[0]) &&
2271 strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
2272 continue;
2273
2274 bgp_peers[i].cli_flag = BGP_CLI_ENABLE;
2275 cli_print(cli, "Un-suspending peer %s", bgp_peers[i].name);
2276 }
2277
2278 return CLI_OK;
2279 }
2280
2281 static int cmd_restart_bgp(struct cli_def *cli, char *command, char **argv, int argc)
2282 {
2283 int i;
2284 char *addr;
2285
2286 if (!bgp_configured)
2287 return CLI_OK;
2288
2289 if (CLI_HELP_REQUESTED)
2290 return cli_arg_help(cli, 1,
2291 "A.B.C.D", "BGP neighbour address",
2292 "NAME", "BGP neighbour name",
2293 NULL);
2294
2295 for (i = 0; i < BGP_NUM_PEERS; i++)
2296 {
2297 if (!*bgp_peers[i].name)
2298 continue;
2299
2300 addr = fmtaddr(bgp_peers[i].addr, 0);
2301 if (argc && strcmp(addr, argv[0]) &&
2302 strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
2303 continue;
2304
2305 bgp_peers[i].cli_flag = BGP_CLI_RESTART;
2306 cli_print(cli, "Restarting peer %s", bgp_peers[i].name);
2307 }
2308
2309 return CLI_OK;
2310 }
2311 #endif /* BGP*/
2312
2313 static int filt;
2314 static int find_access_list(char const *name)
2315 {
2316 int i;
2317
2318 for (i = 0; i < MAXFILTER; i++)
2319 if (!(*ip_filters[i].name && strcmp(ip_filters[i].name, name)))
2320 return i;
2321
2322 return -1;
2323 }
2324
2325 static int access_list(struct cli_def *cli, char **argv, int argc, int add)
2326 {
2327 int extended;
2328
2329 if (CLI_HELP_REQUESTED)
2330 {
2331 switch (argc)
2332 {
2333 case 1:
2334 return cli_arg_help(cli, 0,
2335 "standard", "Standard syntax",
2336 "extended", "Extended syntax",
2337 NULL);
2338
2339 case 2:
2340 return cli_arg_help(cli, argv[1][1],
2341 "NAME", "Access-list name",
2342 NULL);
2343
2344 default:
2345 if (argc == 3 && !argv[2][1])
2346 return cli_arg_help(cli, 1, NULL);
2347
2348 return CLI_OK;
2349 }
2350 }
2351
2352 if (argc != 2)
2353 {
2354 cli_print(cli, "Specify access-list type and name");
2355 return CLI_OK;
2356 }
2357
2358 if (MATCH("standard", argv[0]))
2359 extended = 0;
2360 else if (MATCH("extended", argv[0]))
2361 extended = 1;
2362 else
2363 {
2364 cli_print(cli, "Invalid access-list type");
2365 return CLI_OK;
2366 }
2367
2368 if (strlen(argv[1]) > sizeof(ip_filters[0].name) - 1 ||
2369 strspn(argv[1], "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-") != strlen(argv[1]))
2370 {
2371 cli_print(cli, "Invalid access-list name");
2372 return CLI_OK;
2373 }
2374
2375 filt = find_access_list(argv[1]);
2376 if (add)
2377 {
2378 if (filt < 0)
2379 {
2380 cli_print(cli, "Too many access-lists");
2381 return CLI_OK;
2382 }
2383
2384 // racy
2385 if (!*ip_filters[filt].name)
2386 {
2387 memset(&ip_filters[filt], 0, sizeof(ip_filters[filt]));
2388 strcpy(ip_filters[filt].name, argv[1]);
2389 ip_filters[filt].extended = extended;
2390 }
2391 else if (ip_filters[filt].extended != extended)
2392 {
2393 cli_print(cli, "Access-list is %s",
2394 ip_filters[filt].extended ? "extended" : "standard");
2395
2396 return CLI_OK;
2397 }
2398
2399 cli_set_configmode(cli, MODE_CONFIG_NACL, extended ? "ext-nacl" : "std-nacl");
2400 return CLI_OK;
2401 }
2402
2403 if (filt < 0 || !*ip_filters[filt].name)
2404 {
2405 cli_print(cli, "Access-list not defined");
2406 return CLI_OK;
2407 }
2408
2409 // racy
2410 if (ip_filters[filt].used)
2411 {
2412 cli_print(cli, "Access-list in use");
2413 return CLI_OK;
2414 }
2415
2416 memset(&ip_filters[filt], 0, sizeof(ip_filters[filt]));
2417 return CLI_OK;
2418 }
2419
2420 static int cmd_ip_access_list(struct cli_def *cli, char *command, char **argv, int argc)
2421 {
2422 return access_list(cli, argv, argc, 1);
2423 }
2424
2425 static int cmd_no_ip_access_list(struct cli_def *cli, char *command, char **argv, int argc)
2426 {
2427 return access_list(cli, argv, argc, 0);
2428 }
2429
2430 static int show_ip_wild(char *buf, in_addr_t ip, in_addr_t wild)
2431 {
2432 if (ip == INADDR_ANY && wild == INADDR_BROADCAST)
2433 return sprintf(buf, " any");
2434
2435 if (wild == INADDR_ANY)
2436 return sprintf(buf, " host %s", fmtaddr(ip, 0));
2437
2438 return sprintf(buf, " %s %s", fmtaddr(ip, 0), fmtaddr(wild, 1));
2439 }
2440
2441 static int show_ports(char *buf, ip_filter_portt *ports)
2442 {
2443 switch (ports->op)
2444 {
2445 case FILTER_PORT_OP_EQ: return sprintf(buf, " eq %u", ports->port);
2446 case FILTER_PORT_OP_NEQ: return sprintf(buf, " neq %u", ports->port);
2447 case FILTER_PORT_OP_GT: return sprintf(buf, " gt %u", ports->port);
2448 case FILTER_PORT_OP_LT: return sprintf(buf, " lt %u", ports->port);
2449 case FILTER_PORT_OP_RANGE: return sprintf(buf, " range %u %u", ports->port, ports->port2);
2450 }
2451
2452 return 0;
2453 }
2454
2455 static char const *show_access_list_rule(int extended, ip_filter_rulet *rule)
2456 {
2457 static char buf[256];
2458 char *p = buf;
2459
2460 p += sprintf(p, " %s", rule->action == FILTER_ACTION_PERMIT ? "permit" : "deny");
2461 if (extended)
2462 {
2463 struct protoent *proto = getprotobynumber(rule->proto);
2464 p += sprintf(p, " %s", proto ? proto->p_name : "ERR");
2465 }
2466
2467 p += show_ip_wild(p, rule->src_ip, rule->src_wild);
2468 if (!extended)
2469 return buf;
2470
2471 if (rule->proto == IPPROTO_TCP || rule->proto == IPPROTO_UDP)
2472 p += show_ports(p, &rule->src_ports);
2473
2474 p += show_ip_wild(p, rule->dst_ip, rule->dst_wild);
2475 if (rule->proto == IPPROTO_TCP || rule->proto == IPPROTO_UDP)
2476 p += show_ports(p, &rule->dst_ports);
2477
2478 if (rule->proto == IPPROTO_TCP && rule->tcp_flag_op)
2479 {
2480 switch (rule->tcp_flag_op)
2481 {
2482 case FILTER_FLAG_OP_EST:
2483 p += sprintf(p, " established");
2484 break;
2485
2486 case FILTER_FLAG_OP_ANY:
2487 case FILTER_FLAG_OP_ALL:
2488 p += sprintf(p, " match-%s", rule->tcp_flag_op == FILTER_FLAG_OP_ALL ? "all" : "any");
2489 if (rule->tcp_sflags & TCP_FLAG_FIN) p += sprintf(p, " +fin");
2490 if (rule->tcp_cflags & TCP_FLAG_FIN) p += sprintf(p, " -fin");
2491 if (rule->tcp_sflags & TCP_FLAG_SYN) p += sprintf(p, " +syn");
2492 if (rule->tcp_cflags & TCP_FLAG_SYN) p += sprintf(p, " -syn");
2493 if (rule->tcp_sflags & TCP_FLAG_RST) p += sprintf(p, " +rst");
2494 if (rule->tcp_cflags & TCP_FLAG_RST) p += sprintf(p, " -rst");
2495 if (rule->tcp_sflags & TCP_FLAG_PSH) p += sprintf(p, " +psh");
2496 if (rule->tcp_cflags & TCP_FLAG_PSH) p += sprintf(p, " -psh");
2497 if (rule->tcp_sflags & TCP_FLAG_ACK) p += sprintf(p, " +ack");
2498 if (rule->tcp_cflags & TCP_FLAG_ACK) p += sprintf(p, " -ack");
2499 if (rule->tcp_sflags & TCP_FLAG_URG) p += sprintf(p, " +urg");
2500 if (rule->tcp_cflags & TCP_FLAG_URG) p += sprintf(p, " -urg");
2501 break;
2502 }
2503 }
2504
2505 if (rule->frag)
2506 p += sprintf(p, " fragments");
2507
2508 return buf;
2509 }
2510
2511 static ip_filter_rulet *access_list_rule_ext(struct cli_def *cli, char *command, char **argv, int argc)
2512 {
2513 static ip_filter_rulet rule;
2514 struct in_addr addr;
2515 int i;
2516 int a;
2517
2518 if (CLI_HELP_REQUESTED)
2519 {
2520 if (argc == 1)
2521 {
2522 cli_arg_help(cli, 0,
2523 "ip", "Match IP packets",
2524 "tcp", "Match TCP packets",
2525 "udp", "Match UDP packets",
2526 NULL);
2527
2528 return NULL;
2529 }
2530
2531 // *sigh*, too darned complex
2532 cli_arg_help(cli, 0, "RULE", "SOURCE [PORTS] DEST [PORTS] FLAGS", NULL);
2533 return NULL;
2534 }
2535
2536 if (argc < 3)
2537 {
2538 cli_print(cli, "Specify rule details");
2539 return NULL;
2540 }
2541
2542 memset(&rule, 0, sizeof(rule));
2543 rule.action = (command[0] == 'p')
2544 ? FILTER_ACTION_PERMIT
2545 : FILTER_ACTION_DENY;
2546
2547 if (MATCH("ip", argv[0]))
2548 rule.proto = IPPROTO_IP;
2549 else if (MATCH("udp", argv[0]))
2550 rule.proto = IPPROTO_UDP;
2551 else if (MATCH("tcp", argv[0]))
2552 rule.proto = IPPROTO_TCP;
2553 else
2554 {
2555 cli_print(cli, "Invalid protocol \"%s\"", argv[0]);
2556 return NULL;
2557 }
2558
2559 for (a = 1, i = 0; i < 2; i++)
2560 {
2561 in_addr_t *ip;
2562 in_addr_t *wild;
2563 ip_filter_portt *port;
2564
2565 if (i == 0)
2566 {
2567 ip = &rule.src_ip;
2568 wild = &rule.src_wild;
2569 port = &rule.src_ports;
2570 }
2571 else
2572 {
2573 ip = &rule.dst_ip;
2574 wild = &rule.dst_wild;
2575 port = &rule.dst_ports;
2576 if (a >= argc)
2577 {
2578 cli_print(cli, "Specify destination");
2579 return NULL;
2580 }
2581 }
2582
2583 if (MATCH("any", argv[a]))
2584 {
2585 *ip = INADDR_ANY;
2586 *wild = INADDR_BROADCAST;
2587 a++;
2588 }
2589 else if (MATCH("host", argv[a]))
2590 {
2591 if (++a >= argc)
2592 {
2593 cli_print(cli, "Specify host ip address");
2594 return NULL;
2595 }
2596
2597 if (!inet_aton(argv[a], &addr))
2598 {
2599 cli_print(cli, "Cannot parse IP \"%s\"", argv[a]);
2600 return NULL;
2601 }
2602
2603 *ip = addr.s_addr;
2604 *wild = INADDR_ANY;
2605 a++;
2606 }
2607 else
2608 {
2609 if (a >= argc - 1)
2610 {
2611 cli_print(cli, "Specify %s ip address and wildcard", i ? "destination" : "source");
2612 return NULL;
2613 }
2614
2615 if (!inet_aton(argv[a], &addr))
2616 {
2617 cli_print(cli, "Cannot parse IP \"%s\"", argv[a]);
2618 return NULL;
2619 }
2620
2621 *ip = addr.s_addr;
2622
2623 if (!inet_aton(argv[++a], &addr))
2624 {
2625 cli_print(cli, "Cannot parse IP \"%s\"", argv[a]);
2626 return NULL;
2627 }
2628
2629 *wild = addr.s_addr;
2630 a++;
2631 }
2632
2633 if (rule.proto == IPPROTO_IP || a >= argc)
2634 continue;
2635
2636 port->op = 0;
2637 if (MATCH("eq", argv[a]))
2638 port->op = FILTER_PORT_OP_EQ;
2639 else if (MATCH("neq", argv[a]))
2640 port->op = FILTER_PORT_OP_NEQ;
2641 else if (MATCH("gt", argv[a]))
2642 port->op = FILTER_PORT_OP_GT;
2643 else if (MATCH("lt", argv[a]))
2644 port->op = FILTER_PORT_OP_LT;
2645 else if (MATCH("range", argv[a]))
2646 port->op = FILTER_PORT_OP_RANGE;
2647
2648 if (!port->op)
2649 continue;
2650
2651 if (++a >= argc)
2652 {
2653 cli_print(cli, "Specify port");
2654 return NULL;
2655 }
2656
2657 if (!(port->port = atoi(argv[a])))
2658 {
2659 cli_print(cli, "Invalid port \"%s\"", argv[a]);
2660 return NULL;
2661 }
2662
2663 a++;
2664 if (port->op != FILTER_PORT_OP_RANGE)
2665 continue;
2666
2667 if (a >= argc)
2668 {
2669 cli_print(cli, "Specify port");
2670 return NULL;
2671 }
2672
2673 if (!(port->port2 = atoi(argv[a])) || port->port2 < port->port)
2674 {
2675 cli_print(cli, "Invalid port \"%s\"", argv[a]);
2676 return NULL;
2677 }
2678
2679 a++;
2680 }
2681
2682 if (rule.proto == IPPROTO_TCP && a < argc)
2683 {
2684 if (MATCH("established", argv[a]))
2685 {
2686 rule.tcp_flag_op = FILTER_FLAG_OP_EST;
2687 a++;
2688 }
2689 else if (!strcmp(argv[a], "match-any") || !strcmp(argv[a], "match-an") ||
2690 !strcmp(argv[a], "match-all") || !strcmp(argv[a], "match-al"))
2691 {
2692 rule.tcp_flag_op = argv[a][7] == 'n'
2693 ? FILTER_FLAG_OP_ANY
2694 : FILTER_FLAG_OP_ALL;
2695
2696 if (++a >= argc)
2697 {
2698 cli_print(cli, "Specify tcp flags");
2699 return NULL;
2700 }
2701
2702 while (a < argc && (argv[a][0] == '+' || argv[a][0] == '-'))
2703 {
2704 uint8_t *f;
2705
2706 f = (argv[a][0] == '+') ? &rule.tcp_sflags : &rule.tcp_cflags;
2707
2708 if (MATCH("fin", &argv[a][1])) *f |= TCP_FLAG_FIN;
2709 else if (MATCH("syn", &argv[a][1])) *f |= TCP_FLAG_SYN;
2710 else if (MATCH("rst", &argv[a][1])) *f |= TCP_FLAG_RST;
2711 else if (MATCH("psh", &argv[a][1])) *f |= TCP_FLAG_PSH;
2712 else if (MATCH("ack", &argv[a][1])) *f |= TCP_FLAG_ACK;
2713 else if (MATCH("urg", &argv[a][1])) *f |= TCP_FLAG_URG;
2714 else
2715 {
2716 cli_print(cli, "Invalid tcp flag \"%s\"", argv[a]);
2717 return NULL;
2718 }
2719
2720 a++;
2721 }
2722 }
2723 }
2724
2725 if (a < argc && MATCH("fragments", argv[a]))
2726 {
2727 if (rule.src_ports.op || rule.dst_ports.op || rule.tcp_flag_op)
2728 {
2729 cli_print(cli, "Can't specify \"fragments\" on rules with layer 4 matches");
2730 return NULL;
2731 }
2732
2733 rule.frag = 1;
2734 a++;
2735 }
2736
2737 if (a < argc)
2738 {
2739 cli_print(cli, "Invalid flag \"%s\"", argv[a]);
2740 return NULL;
2741 }
2742
2743 return &rule;
2744 }
2745
2746 static ip_filter_rulet *access_list_rule_std(struct cli_def *cli, char *command, char **argv, int argc)
2747 {
2748 static ip_filter_rulet rule;
2749 struct in_addr addr;
2750
2751 if (CLI_HELP_REQUESTED)
2752 {
2753 if (argc == 1)
2754 {
2755 cli_arg_help(cli, argv[0][1],
2756 "A.B.C.D", "Source address",
2757 "any", "Any source address",
2758 "host", "Source host",
2759 NULL);
2760
2761 return NULL;
2762 }
2763
2764 if (MATCH("any", argv[0]))
2765 {
2766 if (argc == 2 && !argv[1][1])
2767 cli_arg_help(cli, 1, NULL);
2768 }
2769 else if (MATCH("host", argv[0]))
2770 {
2771 if (argc == 2)
2772 {
2773 cli_arg_help(cli, argv[1][1],
2774 "A.B.C.D", "Host address",
2775 NULL);
2776 }
2777 else if (argc == 3 && !argv[2][1])
2778 cli_arg_help(cli, 1, NULL);
2779 }
2780 else
2781 {
2782 if (argc == 2)
2783 {
2784 cli_arg_help(cli, 1,
2785 "A.B.C.D", "Wildcard bits",
2786 NULL);
2787 }
2788 else if (argc == 3 && !argv[2][1])
2789 cli_arg_help(cli, 1, NULL);
2790 }
2791
2792 return NULL;
2793 }
2794
2795 if (argc < 1)
2796 {
2797 cli_print(cli, "Specify rule details");
2798 return NULL;
2799 }
2800
2801 memset(&rule, 0, sizeof(rule));
2802 rule.action = (command[0] == 'p')
2803 ? FILTER_ACTION_PERMIT
2804 : FILTER_ACTION_DENY;
2805
2806 rule.proto = IPPROTO_IP;
2807 if (MATCH("any", argv[0]))
2808 {
2809 rule.src_ip = INADDR_ANY;
2810 rule.src_wild = INADDR_BROADCAST;
2811 }
2812 else if (MATCH("host", argv[0]))
2813 {
2814 if (argc != 2)
2815 {
2816 cli_print(cli, "Specify host ip address");
2817 return NULL;
2818 }
2819
2820 if (!inet_aton(argv[1], &addr))
2821 {
2822 cli_print(cli, "Cannot parse IP \"%s\"", argv[1]);
2823 return NULL;
2824 }
2825
2826 rule.src_ip = addr.s_addr;
2827 rule.src_wild = INADDR_ANY;
2828 }
2829 else
2830 {
2831 if (argc > 2)
2832 {
2833 cli_print(cli, "Specify source ip address and wildcard");
2834 return NULL;
2835 }
2836
2837 if (!inet_aton(argv[0], &addr))
2838 {
2839 cli_print(cli, "Cannot parse IP \"%s\"", argv[0]);
2840 return NULL;
2841 }
2842
2843 rule.src_ip = addr.s_addr;
2844
2845 if (argc > 1)
2846 {
2847 if (!inet_aton(argv[1], &addr))
2848 {
2849 cli_print(cli, "Cannot parse IP \"%s\"", argv[1]);
2850 return NULL;
2851 }
2852
2853 rule.src_wild = addr.s_addr;
2854 }
2855 else
2856 rule.src_wild = INADDR_ANY;
2857 }
2858
2859 return &rule;
2860 }
2861
2862 static int cmd_ip_access_list_rule(struct cli_def *cli, char *command, char **argv, int argc)
2863 {
2864 int i;
2865 ip_filter_rulet *rule = ip_filters[filt].extended
2866 ? access_list_rule_ext(cli, command, argv, argc)
2867 : access_list_rule_std(cli, command, argv, argc);
2868
2869 if (!rule)
2870 return CLI_OK;
2871
2872 for (i = 0; i < MAXFILTER_RULES - 1; i++) // -1: list always terminated by empty rule
2873 {
2874 if (!ip_filters[filt].rules[i].action)
2875 {
2876 memcpy(&ip_filters[filt].rules[i], rule, sizeof(*rule));
2877 return CLI_OK;
2878 }
2879
2880 if (!memcmp(&ip_filters[filt].rules[i], rule, sizeof(*rule)))
2881 return CLI_OK;
2882 }
2883
2884 cli_print(cli, "Too many rules");
2885 return CLI_OK;
2886 }
2887
2888 static int cmd_filter(struct cli_def *cli, char *command, char **argv, int argc)
2889 {
2890 sessionidt s;
2891 int i;
2892
2893 /* filter USER {in|out} FILTER ... */
2894 if (CLI_HELP_REQUESTED)
2895 {
2896 switch (argc)
2897 {
2898 case 1:
2899 return cli_arg_help(cli, 0,
2900 "USER", "Username of session to filter", NULL);
2901
2902 case 2:
2903 case 4:
2904 return cli_arg_help(cli, 0,
2905 "in", "Set incoming filter",
2906 "out", "Set outgoing filter", NULL);
2907
2908 case 3:
2909 case 5:
2910 return cli_arg_help(cli, argc == 5 && argv[4][1],
2911 "NAME", "Filter name", NULL);
2912
2913 default:
2914 return cli_arg_help(cli, argc > 1, NULL);
2915 }
2916 }
2917
2918 if (!config->cluster_iam_master)
2919 {
2920 cli_print(cli, "Can't do this on a slave. Do it on %s",
2921 fmtaddr(config->cluster_master_address, 0));
2922
2923 return CLI_OK;
2924 }
2925
2926 if (argc != 3 && argc != 5)
2927 {
2928 cli_print(cli, "Specify a user and filters");
2929 return CLI_OK;
2930 }
2931
2932 if (!(s = sessionbyuser(argv[0])))
2933 {
2934 cli_print(cli, "User %s is not connected", argv[0]);
2935 return CLI_OK;
2936 }
2937
2938 cli_session_actions[s].filter_in = cli_session_actions[s].filter_out = -1;
2939 for (i = 1; i < argc; i += 2)
2940 {
2941 int *f = 0;
2942 int v;
2943
2944 if (MATCH("in", argv[i]))
2945 {
2946 if (session[s].filter_in)
2947 {
2948 cli_print(cli, "Input already filtered");
2949 return CLI_OK;
2950 }
2951 f = &cli_session_actions[s].filter_in;
2952 }
2953 else if (MATCH("out", argv[i]))
2954 {
2955 if (session[s].filter_out)
2956 {
2957 cli_print(cli, "Output already filtered");
2958 return CLI_OK;
2959 }
2960 f = &cli_session_actions[s].filter_out;
2961 }
2962 else
2963 {
2964 cli_print(cli, "Invalid filter specification");
2965 return CLI_OK;
2966 }
2967
2968 v = find_access_list(argv[i+1]);
2969 if (v < 0 || !*ip_filters[v].name)
2970 {
2971 cli_print(cli, "Access-list %s not defined", argv[i+1]);
2972 return CLI_OK;
2973 }
2974
2975 *f = v + 1;
2976 }
2977
2978 cli_print(cli, "Filtering user %s", argv[0]);
2979 cli_session_actions[s].action |= CLI_SESS_FILTER;
2980
2981 return CLI_OK;
2982 }
2983
2984 static int cmd_no_filter(struct cli_def *cli, char *command, char **argv, int argc)
2985 {
2986 int i;
2987 sessionidt s;
2988
2989 if (CLI_HELP_REQUESTED)
2990 return cli_arg_help(cli, argc > 1,
2991 "USER", "Username of session to remove filters from", NULL);
2992
2993 if (!config->cluster_iam_master)
2994 {
2995 cli_print(cli, "Can't do this on a slave. Do it on %s",
2996 fmtaddr(config->cluster_master_address, 0));
2997
2998 return CLI_OK;
2999 }
3000
3001 if (!argc)
3002 {
3003 cli_print(cli, "Specify a user to remove filters from");
3004 return CLI_OK;
3005 }
3006
3007 for (i = 0; i < argc; i++)
3008 {
3009 if (!(s = sessionbyuser(argv[i])))
3010 {
3011 cli_print(cli, "User %s is not connected", argv[i]);
3012 continue;
3013 }
3014
3015 if (session[s].filter_in || session[s].filter_out)
3016 {
3017 cli_print(cli, "Removing filters from user %s", argv[i]);
3018 cli_session_actions[s].action |= CLI_SESS_NOFILTER;
3019 }
3020 else
3021 {
3022 cli_print(cli, "User %s not filtered", argv[i]);
3023 }
3024 }
3025
3026 return CLI_OK;
3027 }
3028
3029 static int cmd_show_access_list(struct cli_def *cli, char *command, char **argv, int argc)
3030 {
3031 int i;
3032
3033 if (CLI_HELP_REQUESTED)
3034 return cli_arg_help(cli, argc > 1, "NAME", "Filter name", NULL);
3035
3036 if (argc < 1)
3037 {
3038 cli_print(cli, "Specify a filter name");
3039 return CLI_OK;
3040 }
3041
3042 for (i = 0; i < argc; i++)
3043 {
3044 int f = find_access_list(argv[i]);
3045 ip_filter_rulet *rules;
3046
3047 if (f < 0 || !*ip_filters[f].name)
3048 {
3049 cli_print(cli, "Access-list %s not defined", argv[i]);
3050 return CLI_OK;
3051 }
3052
3053 if (i)
3054 cli_print(cli, "");
3055
3056 cli_print(cli, "%s IP access list %s",
3057 ip_filters[f].extended ? "Extended" : "Standard",
3058 ip_filters[f].name);
3059
3060 for (rules = ip_filters[f].rules; rules->action; rules++)
3061 {
3062 char const *r = show_access_list_rule(ip_filters[f].extended, rules);
3063 if (rules->counter)
3064 cli_print(cli, "%s (%d match%s)", r,
3065 rules->counter, rules->counter > 1 ? "es" : "");
3066 else
3067 cli_print(cli, "%s", r);
3068 }
3069 }
3070
3071 return CLI_OK;
3072 }
3073
3074 // Convert a string in the form of abcd.ef12.3456 into char[6]
3075 void parsemac(char *string, char mac[6])
3076 {
3077 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)
3078 return;
3079 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)
3080 return;
3081 memset(mac, 0, 6);
3082 }
for cloning use: "git clone git://git.sameswireless.fr/l2tpns.git" ; For add to your sources.list: "deb http://package.sameswifi.fr/ jessie main"