]>
Commit | Line | Data |
---|---|---|
b9de3ecf | 1 | /* |
aba5acdf SH |
2 | * ss.c "sockstat", socket statistics |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version | |
7 | * 2 of the License, or (at your option) any later version. | |
8 | * | |
9 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> | |
10 | */ | |
11 | ||
12 | #include <stdio.h> | |
13 | #include <stdlib.h> | |
14 | #include <unistd.h> | |
15 | #include <syslog.h> | |
16 | #include <fcntl.h> | |
17 | #include <sys/ioctl.h> | |
18 | #include <sys/socket.h> | |
19 | #include <sys/uio.h> | |
20 | #include <netinet/in.h> | |
21 | #include <string.h> | |
22 | #include <errno.h> | |
23 | #include <netdb.h> | |
24 | #include <arpa/inet.h> | |
25 | #include <resolv.h> | |
26 | #include <dirent.h> | |
27 | #include <fnmatch.h> | |
ab61159a | 28 | #include <getopt.h> |
aba5acdf SH |
29 | |
30 | #include "utils.h" | |
31 | #include "rt_names.h" | |
32 | #include "ll_map.h" | |
33 | #include "libnetlink.h" | |
aba5acdf SH |
34 | #include "SNAPSHOT.h" |
35 | ||
77aa4d03 | 36 | #include <netinet/tcp.h> |
f6062360 | 37 | #include <linux/sock_diag.h> |
351efcde | 38 | #include <linux/inet_diag.h> |
dfbaa90d | 39 | #include <linux/unix_diag.h> |
aba5acdf SH |
40 | |
41 | int resolve_hosts = 0; | |
42 | int resolve_services = 1; | |
43 | int preferred_family = AF_UNSPEC; | |
44 | int show_options = 0; | |
45 | int show_details = 0; | |
46 | int show_users = 0; | |
47 | int show_mem = 0; | |
48 | int show_tcpinfo = 0; | |
49 | ||
50 | int netid_width; | |
51 | int state_width; | |
52 | int addrp_width; | |
53 | int addr_width; | |
54 | int serv_width; | |
55 | int screen_width; | |
56 | ||
57 | static const char *TCP_PROTO = "tcp"; | |
58 | static const char *UDP_PROTO = "udp"; | |
59 | static const char *RAW_PROTO = "raw"; | |
60 | static const char *dg_proto = NULL; | |
61 | ||
62 | enum | |
63 | { | |
64 | TCP_DB, | |
351efcde | 65 | DCCP_DB, |
aba5acdf SH |
66 | UDP_DB, |
67 | RAW_DB, | |
68 | UNIX_DG_DB, | |
69 | UNIX_ST_DB, | |
70 | PACKET_DG_DB, | |
71 | PACKET_R_DB, | |
72 | NETLINK_DB, | |
73 | MAX_DB | |
74 | }; | |
75 | ||
76 | #define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB)) | |
77 | #define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)) | |
78 | #define ALL_DB ((1<<MAX_DB)-1) | |
79 | ||
80 | enum { | |
7d105b56 SH |
81 | SS_UNKNOWN, |
82 | SS_ESTABLISHED, | |
83 | SS_SYN_SENT, | |
84 | SS_SYN_RECV, | |
85 | SS_FIN_WAIT1, | |
86 | SS_FIN_WAIT2, | |
87 | SS_TIME_WAIT, | |
88 | SS_CLOSE, | |
89 | SS_CLOSE_WAIT, | |
90 | SS_LAST_ACK, | |
91 | SS_LISTEN, | |
92 | SS_CLOSING, | |
93 | SS_MAX | |
aba5acdf SH |
94 | }; |
95 | ||
96 | #define SS_ALL ((1<<SS_MAX)-1) | |
97 | ||
98 | #include "ssfilter.h" | |
99 | ||
100 | struct filter | |
101 | { | |
102 | int dbs; | |
103 | int states; | |
104 | int families; | |
105 | struct ssfilter *f; | |
106 | }; | |
107 | ||
108 | struct filter default_filter = { | |
e7113c61 SH |
109 | .dbs = (1<<TCP_DB), |
110 | .states = SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)), | |
111 | .families= (1<<AF_INET)|(1<<AF_INET6), | |
aba5acdf SH |
112 | }; |
113 | ||
114 | struct filter current_filter; | |
115 | ||
ab01dbbb | 116 | static FILE *generic_proc_open(const char *env, const char *name) |
aba5acdf | 117 | { |
ab01dbbb | 118 | const char *p = getenv(env); |
aba5acdf | 119 | char store[128]; |
ab01dbbb | 120 | |
aba5acdf SH |
121 | if (!p) { |
122 | p = getenv("PROC_ROOT") ? : "/proc"; | |
123 | snprintf(store, sizeof(store)-1, "%s/%s", p, name); | |
124 | p = store; | |
125 | } | |
ab01dbbb SH |
126 | |
127 | return fopen(p, "r"); | |
aba5acdf SH |
128 | } |
129 | ||
ab01dbbb | 130 | static FILE *net_tcp_open(void) |
aba5acdf SH |
131 | { |
132 | return generic_proc_open("PROC_NET_TCP", "net/tcp"); | |
133 | } | |
134 | ||
ab01dbbb | 135 | static FILE *net_tcp6_open(void) |
aba5acdf SH |
136 | { |
137 | return generic_proc_open("PROC_NET_TCP6", "net/tcp6"); | |
138 | } | |
139 | ||
ab01dbbb | 140 | static FILE *net_udp_open(void) |
aba5acdf SH |
141 | { |
142 | return generic_proc_open("PROC_NET_UDP", "net/udp"); | |
143 | } | |
144 | ||
ab01dbbb | 145 | static FILE *net_udp6_open(void) |
aba5acdf SH |
146 | { |
147 | return generic_proc_open("PROC_NET_UDP6", "net/udp6"); | |
148 | } | |
149 | ||
ab01dbbb | 150 | static FILE *net_raw_open(void) |
aba5acdf SH |
151 | { |
152 | return generic_proc_open("PROC_NET_RAW", "net/raw"); | |
153 | } | |
154 | ||
ab01dbbb | 155 | static FILE *net_raw6_open(void) |
aba5acdf SH |
156 | { |
157 | return generic_proc_open("PROC_NET_RAW6", "net/raw6"); | |
158 | } | |
159 | ||
ab01dbbb | 160 | static FILE *net_unix_open(void) |
aba5acdf SH |
161 | { |
162 | return generic_proc_open("PROC_NET_UNIX", "net/unix"); | |
163 | } | |
164 | ||
ab01dbbb | 165 | static FILE *net_packet_open(void) |
aba5acdf SH |
166 | { |
167 | return generic_proc_open("PROC_NET_PACKET", "net/packet"); | |
168 | } | |
169 | ||
ab01dbbb | 170 | static FILE *net_netlink_open(void) |
aba5acdf SH |
171 | { |
172 | return generic_proc_open("PROC_NET_NETLINK", "net/netlink"); | |
173 | } | |
174 | ||
ab01dbbb | 175 | static FILE *slabinfo_open(void) |
aba5acdf SH |
176 | { |
177 | return generic_proc_open("PROC_SLABINFO", "slabinfo"); | |
178 | } | |
179 | ||
ab01dbbb | 180 | static FILE *net_sockstat_open(void) |
aba5acdf SH |
181 | { |
182 | return generic_proc_open("PROC_NET_SOCKSTAT", "net/sockstat"); | |
183 | } | |
184 | ||
ab01dbbb | 185 | static FILE *net_sockstat6_open(void) |
aba5acdf SH |
186 | { |
187 | return generic_proc_open("PROC_NET_SOCKSTAT6", "net/sockstat6"); | |
188 | } | |
189 | ||
ab01dbbb | 190 | static FILE *net_snmp_open(void) |
aba5acdf SH |
191 | { |
192 | return generic_proc_open("PROC_NET_SNMP", "net/snmp"); | |
193 | } | |
194 | ||
ab01dbbb | 195 | static FILE *ephemeral_ports_open(void) |
aba5acdf SH |
196 | { |
197 | return generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", "sys/net/ipv4/ip_local_port_range"); | |
198 | } | |
199 | ||
fbc0f876 SF |
200 | struct user_ent { |
201 | struct user_ent *next; | |
202 | unsigned int ino; | |
203 | int pid; | |
204 | int fd; | |
205 | char process[0]; | |
206 | }; | |
207 | ||
208 | #define USER_ENT_HASH_SIZE 256 | |
209 | struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE]; | |
210 | ||
211 | static int user_ent_hashfn(unsigned int ino) | |
aba5acdf | 212 | { |
fbc0f876 | 213 | int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino; |
aba5acdf | 214 | |
fbc0f876 SF |
215 | return val & (USER_ENT_HASH_SIZE - 1); |
216 | } | |
217 | ||
218 | static void user_ent_add(unsigned int ino, const char *process, int pid, int fd) | |
219 | { | |
220 | struct user_ent *p, **pp; | |
221 | int str_len; | |
aba5acdf | 222 | |
fbc0f876 SF |
223 | str_len = strlen(process) + 1; |
224 | p = malloc(sizeof(struct user_ent) + str_len); | |
225 | if (!p) | |
226 | abort(); | |
227 | p->next = NULL; | |
228 | p->ino = ino; | |
229 | p->pid = pid; | |
230 | p->fd = fd; | |
231 | strcpy(p->process, process); | |
232 | ||
233 | pp = &user_ent_hash[user_ent_hashfn(ino)]; | |
234 | p->next = *pp; | |
235 | *pp = p; | |
236 | } | |
aba5acdf | 237 | |
fbc0f876 SF |
238 | static void user_ent_hash_build(void) |
239 | { | |
240 | const char *root = getenv("PROC_ROOT") ? : "/proc/"; | |
241 | struct dirent *d; | |
242 | char name[1024]; | |
243 | int nameoff; | |
244 | DIR *dir; | |
245 | ||
246 | strcpy(name, root); | |
247 | if (strlen(name) == 0 || name[strlen(name)-1] != '/') | |
aba5acdf | 248 | strcat(name, "/"); |
fbc0f876 | 249 | |
aba5acdf | 250 | nameoff = strlen(name); |
fbc0f876 SF |
251 | |
252 | dir = opendir(name); | |
253 | if (!dir) | |
254 | return; | |
aba5acdf SH |
255 | |
256 | while ((d = readdir(dir)) != NULL) { | |
aba5acdf | 257 | struct dirent *d1; |
aba5acdf | 258 | char process[16]; |
fbc0f876 SF |
259 | int pid, pos; |
260 | DIR *dir1; | |
261 | char crap; | |
aba5acdf SH |
262 | |
263 | if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1) | |
264 | continue; | |
265 | ||
fbc0f876 | 266 | sprintf(name + nameoff, "%d/fd/", pid); |
aba5acdf SH |
267 | pos = strlen(name); |
268 | if ((dir1 = opendir(name)) == NULL) | |
269 | continue; | |
270 | ||
fbc0f876 | 271 | process[0] = '\0'; |
aba5acdf SH |
272 | |
273 | while ((d1 = readdir(dir1)) != NULL) { | |
fbc0f876 SF |
274 | const char *pattern = "socket:["; |
275 | unsigned int ino; | |
aba5acdf | 276 | char lnk[64]; |
18445b3e | 277 | int fd; |
788731b3 | 278 | ssize_t link_len; |
aba5acdf SH |
279 | |
280 | if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1) | |
281 | continue; | |
282 | ||
283 | sprintf(name+pos, "%d", fd); | |
788731b3 TJ |
284 | |
285 | link_len = readlink(name, lnk, sizeof(lnk)-1); | |
286 | if (link_len == -1) | |
287 | continue; | |
288 | lnk[link_len] = '\0'; | |
289 | ||
290 | if (strncmp(lnk, pattern, strlen(pattern))) | |
aba5acdf SH |
291 | continue; |
292 | ||
fbc0f876 | 293 | sscanf(lnk, "socket:[%u]", &ino); |
aba5acdf | 294 | |
fbc0f876 | 295 | if (process[0] == '\0') { |
aba5acdf SH |
296 | char tmp[1024]; |
297 | FILE *fp; | |
fbc0f876 SF |
298 | |
299 | snprintf(tmp, sizeof(tmp), "%s/%d/stat", root, pid); | |
aba5acdf SH |
300 | if ((fp = fopen(tmp, "r")) != NULL) { |
301 | fscanf(fp, "%*d (%[^)])", process); | |
302 | fclose(fp); | |
303 | } | |
304 | } | |
305 | ||
fbc0f876 | 306 | user_ent_add(ino, process, pid, fd); |
aba5acdf SH |
307 | } |
308 | closedir(dir1); | |
309 | } | |
310 | closedir(dir); | |
fbc0f876 SF |
311 | } |
312 | ||
313 | int find_users(unsigned ino, char *buf, int buflen) | |
314 | { | |
315 | struct user_ent *p; | |
316 | int cnt = 0; | |
317 | char *ptr; | |
318 | ||
319 | if (!ino) | |
320 | return 0; | |
321 | ||
322 | p = user_ent_hash[user_ent_hashfn(ino)]; | |
323 | ptr = buf; | |
324 | while (p) { | |
325 | if (p->ino != ino) | |
326 | goto next; | |
327 | ||
328 | if (ptr - buf >= buflen - 1) | |
329 | break; | |
330 | ||
331 | snprintf(ptr, buflen - (ptr - buf), | |
332 | "(\"%s\",%d,%d),", | |
333 | p->process, p->pid, p->fd); | |
334 | ptr += strlen(ptr); | |
335 | cnt++; | |
336 | ||
337 | next: | |
338 | p = p->next; | |
339 | } | |
340 | ||
aba5acdf | 341 | if (ptr != buf) |
fbc0f876 SF |
342 | ptr[-1] = '\0'; |
343 | ||
aba5acdf SH |
344 | return cnt; |
345 | } | |
346 | ||
aba5acdf SH |
347 | /* Get stats from slab */ |
348 | ||
349 | struct slabstat | |
350 | { | |
351 | int socks; | |
352 | int tcp_ports; | |
353 | int tcp_tws; | |
354 | int tcp_syns; | |
355 | int skbs; | |
356 | }; | |
357 | ||
358 | struct slabstat slabstat; | |
359 | ||
ae665a52 | 360 | static const char *slabstat_ids[] = |
aba5acdf SH |
361 | { |
362 | "sock", | |
363 | "tcp_bind_bucket", | |
364 | "tcp_tw_bucket", | |
365 | "tcp_open_request", | |
366 | "skbuff_head_cache", | |
367 | }; | |
368 | ||
369 | int get_slabstat(struct slabstat *s) | |
370 | { | |
371 | char buf[256]; | |
372 | FILE *fp; | |
373 | int cnt; | |
374 | ||
375 | memset(s, 0, sizeof(*s)); | |
376 | ||
ab01dbbb SH |
377 | fp = slabinfo_open(); |
378 | if (!fp) | |
aba5acdf SH |
379 | return -1; |
380 | ||
381 | cnt = sizeof(*s)/sizeof(int); | |
382 | ||
383 | fgets(buf, sizeof(buf), fp); | |
384 | while(fgets(buf, sizeof(buf), fp) != NULL) { | |
385 | int i; | |
386 | for (i=0; i<sizeof(slabstat_ids)/sizeof(slabstat_ids[0]); i++) { | |
387 | if (memcmp(buf, slabstat_ids[i], strlen(slabstat_ids[i])) == 0) { | |
388 | sscanf(buf, "%*s%d", ((int *)s) + i); | |
389 | cnt--; | |
390 | break; | |
391 | } | |
392 | } | |
393 | if (cnt <= 0) | |
394 | break; | |
395 | } | |
396 | ||
397 | fclose(fp); | |
398 | return 0; | |
399 | } | |
400 | ||
7d105b56 SH |
401 | static const char *sstate_name[] = { |
402 | "UNKNOWN", | |
403 | [TCP_ESTABLISHED] = "ESTAB", | |
404 | [TCP_SYN_SENT] = "SYN-SENT", | |
405 | [TCP_SYN_RECV] = "SYN-RECV", | |
406 | [TCP_FIN_WAIT1] = "FIN-WAIT-1", | |
407 | [TCP_FIN_WAIT2] = "FIN-WAIT-2", | |
408 | [TCP_TIME_WAIT] = "TIME-WAIT", | |
409 | [TCP_CLOSE] = "UNCONN", | |
410 | [TCP_CLOSE_WAIT] = "CLOSE-WAIT", | |
411 | [TCP_LAST_ACK] = "LAST-ACK", | |
412 | [TCP_LISTEN] = "LISTEN", | |
413 | [TCP_CLOSING] = "CLOSING", | |
aba5acdf SH |
414 | }; |
415 | ||
7d105b56 SH |
416 | static const char *sstate_namel[] = { |
417 | "UNKNOWN", | |
418 | [TCP_ESTABLISHED] = "established", | |
419 | [TCP_SYN_SENT] = "syn-sent", | |
420 | [TCP_SYN_RECV] = "syn-recv", | |
421 | [TCP_FIN_WAIT1] = "fin-wait-1", | |
422 | [TCP_FIN_WAIT2] = "fin-wait-2", | |
423 | [TCP_TIME_WAIT] = "time-wait", | |
424 | [TCP_CLOSE] = "unconnected", | |
425 | [TCP_CLOSE_WAIT] = "close-wait", | |
426 | [TCP_LAST_ACK] = "last-ack", | |
427 | [TCP_LISTEN] = "listening", | |
428 | [TCP_CLOSING] = "closing", | |
aba5acdf SH |
429 | }; |
430 | ||
431 | struct tcpstat | |
432 | { | |
433 | inet_prefix local; | |
434 | inet_prefix remote; | |
435 | int lport; | |
436 | int rport; | |
437 | int state; | |
438 | int rq, wq; | |
439 | int timer; | |
440 | int timeout; | |
441 | int retrs; | |
e7113c61 | 442 | unsigned ino; |
aba5acdf | 443 | int probes; |
e7113c61 | 444 | unsigned uid; |
aba5acdf SH |
445 | int refcnt; |
446 | unsigned long long sk; | |
447 | int rto, ato, qack, cwnd, ssthresh; | |
448 | }; | |
449 | ||
7d105b56 | 450 | static const char *tmr_name[] = { |
aba5acdf SH |
451 | "off", |
452 | "on", | |
453 | "keepalive", | |
454 | "timewait", | |
455 | "persist", | |
456 | "unknown" | |
457 | }; | |
458 | ||
05e18118 | 459 | const char *print_ms_timer(int timeout) |
aba5acdf SH |
460 | { |
461 | static char buf[64]; | |
462 | int secs, msecs, minutes; | |
463 | if (timeout < 0) | |
464 | timeout = 0; | |
465 | secs = timeout/1000; | |
466 | minutes = secs/60; | |
467 | secs = secs%60; | |
468 | msecs = timeout%1000; | |
469 | buf[0] = 0; | |
470 | if (minutes) { | |
471 | msecs = 0; | |
472 | snprintf(buf, sizeof(buf)-16, "%dmin", minutes); | |
473 | if (minutes > 9) | |
474 | secs = 0; | |
475 | } | |
476 | if (secs) { | |
477 | if (secs > 9) | |
478 | msecs = 0; | |
479 | sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec"); | |
480 | } | |
481 | if (msecs) | |
482 | sprintf(buf+strlen(buf), "%03dms", msecs); | |
483 | return buf; | |
e7113c61 | 484 | } |
aba5acdf | 485 | |
05e18118 | 486 | const char *print_hz_timer(int timeout) |
aba5acdf | 487 | { |
2d44be19 | 488 | int hz = get_user_hz(); |
aba5acdf | 489 | return print_ms_timer(((timeout*1000) + hz-1)/hz); |
e7113c61 | 490 | } |
aba5acdf SH |
491 | |
492 | struct scache | |
493 | { | |
494 | struct scache *next; | |
495 | int port; | |
496 | char *name; | |
497 | const char *proto; | |
498 | }; | |
499 | ||
500 | struct scache *rlist; | |
501 | ||
502 | void init_service_resolver(void) | |
503 | { | |
504 | char buf[128]; | |
505 | FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r"); | |
506 | if (fp) { | |
507 | fgets(buf, sizeof(buf), fp); | |
508 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
509 | unsigned int progn, port; | |
510 | char proto[128], prog[128]; | |
511 | if (sscanf(buf, "%u %*d %s %u %s", &progn, proto, | |
512 | &port, prog+4) == 4) { | |
513 | struct scache *c = malloc(sizeof(*c)); | |
514 | if (c) { | |
515 | c->port = port; | |
516 | memcpy(prog, "rpc.", 4); | |
517 | c->name = strdup(prog); | |
518 | if (strcmp(proto, TCP_PROTO) == 0) | |
519 | c->proto = TCP_PROTO; | |
520 | else if (strcmp(proto, UDP_PROTO) == 0) | |
521 | c->proto = UDP_PROTO; | |
522 | else | |
523 | c->proto = NULL; | |
524 | c->next = rlist; | |
525 | rlist = c; | |
526 | } | |
527 | } | |
528 | } | |
2bcc3c16 | 529 | pclose(fp); |
aba5acdf SH |
530 | } |
531 | } | |
532 | ||
ab61159a SH |
533 | static int ip_local_port_min, ip_local_port_max; |
534 | ||
535 | /* Even do not try default linux ephemeral port ranges: | |
536 | * default /etc/services contains so much of useless crap | |
537 | * wouldbe "allocated" to this area that resolution | |
538 | * is really harmful. I shrug each time when seeing | |
539 | * "socks" or "cfinger" in dumps. | |
540 | */ | |
541 | static int is_ephemeral(int port) | |
542 | { | |
543 | if (!ip_local_port_min) { | |
ab01dbbb | 544 | FILE *f = ephemeral_ports_open(); |
ab61159a | 545 | if (f) { |
ae665a52 | 546 | fscanf(f, "%d %d", |
ab61159a SH |
547 | &ip_local_port_min, &ip_local_port_max); |
548 | fclose(f); | |
549 | } else { | |
550 | ip_local_port_min = 1024; | |
551 | ip_local_port_max = 4999; | |
552 | } | |
553 | } | |
554 | ||
555 | return (port >= ip_local_port_min && port<= ip_local_port_max); | |
556 | } | |
557 | ||
558 | ||
aba5acdf SH |
559 | const char *__resolve_service(int port) |
560 | { | |
561 | struct scache *c; | |
562 | ||
563 | for (c = rlist; c; c = c->next) { | |
564 | if (c->port == port && c->proto == dg_proto) | |
565 | return c->name; | |
566 | } | |
567 | ||
ab61159a | 568 | if (!is_ephemeral(port)) { |
aba5acdf SH |
569 | static int notfirst; |
570 | struct servent *se; | |
571 | if (!notfirst) { | |
572 | setservent(1); | |
573 | notfirst = 1; | |
ae665a52 | 574 | } |
aba5acdf SH |
575 | se = getservbyport(htons(port), dg_proto); |
576 | if (se) | |
577 | return se->s_name; | |
578 | } | |
579 | ||
580 | return NULL; | |
581 | } | |
582 | ||
583 | ||
584 | const char *resolve_service(int port) | |
585 | { | |
586 | static char buf[128]; | |
587 | static struct scache cache[256]; | |
588 | ||
589 | if (port == 0) { | |
590 | buf[0] = '*'; | |
591 | buf[1] = 0; | |
592 | return buf; | |
593 | } | |
594 | ||
595 | if (resolve_services) { | |
596 | if (dg_proto == RAW_PROTO) { | |
597 | return inet_proto_n2a(port, buf, sizeof(buf)); | |
598 | } else { | |
599 | struct scache *c; | |
600 | const char *res; | |
601 | int hash = (port^(((unsigned long)dg_proto)>>2))&255; | |
602 | ||
ae665a52 | 603 | for (c = &cache[hash]; c; c = c->next) { |
aba5acdf SH |
604 | if (c->port == port && |
605 | c->proto == dg_proto) { | |
606 | if (c->name) | |
607 | return c->name; | |
608 | goto do_numeric; | |
609 | } | |
610 | } | |
611 | ||
612 | if ((res = __resolve_service(port)) != NULL) { | |
613 | if ((c = malloc(sizeof(*c))) == NULL) | |
614 | goto do_numeric; | |
615 | } else { | |
616 | c = &cache[hash]; | |
617 | if (c->name) | |
618 | free(c->name); | |
619 | } | |
620 | c->port = port; | |
621 | c->name = NULL; | |
622 | c->proto = dg_proto; | |
623 | if (res) { | |
624 | c->name = strdup(res); | |
625 | c->next = cache[hash].next; | |
626 | cache[hash].next = c; | |
627 | } | |
628 | if (c->name) | |
629 | return c->name; | |
630 | } | |
631 | } | |
632 | ||
633 | do_numeric: | |
634 | sprintf(buf, "%u", port); | |
635 | return buf; | |
636 | } | |
637 | ||
7d105b56 | 638 | void formatted_print(const inet_prefix *a, int port) |
aba5acdf SH |
639 | { |
640 | char buf[1024]; | |
641 | const char *ap = buf; | |
642 | int est_len; | |
643 | ||
644 | est_len = addr_width; | |
645 | ||
646 | if (a->family == AF_INET) { | |
647 | if (a->data[0] == 0) { | |
648 | buf[0] = '*'; | |
649 | buf[1] = 0; | |
650 | } else { | |
651 | ap = format_host(AF_INET, 4, a->data, buf, sizeof(buf)); | |
652 | } | |
653 | } else { | |
654 | ap = format_host(a->family, 16, a->data, buf, sizeof(buf)); | |
655 | est_len = strlen(ap); | |
656 | if (est_len <= addr_width) | |
657 | est_len = addr_width; | |
658 | else | |
659 | est_len = addr_width + ((est_len-addr_width+3)/4)*4; | |
660 | } | |
661 | printf("%*s:%-*s ", est_len, ap, serv_width, resolve_service(port)); | |
662 | } | |
663 | ||
664 | struct aafilter | |
665 | { | |
666 | inet_prefix addr; | |
667 | int port; | |
668 | struct aafilter *next; | |
669 | }; | |
670 | ||
7d105b56 | 671 | int inet2_addr_match(const inet_prefix *a, const inet_prefix *p, int plen) |
aba5acdf SH |
672 | { |
673 | if (!inet_addr_match(a, p, plen)) | |
674 | return 0; | |
7d105b56 | 675 | |
aba5acdf SH |
676 | /* Cursed "v4 mapped" addresses: v4 mapped socket matches |
677 | * pure IPv4 rule, but v4-mapped rule selects only v4-mapped | |
678 | * sockets. Fair? */ | |
679 | if (p->family == AF_INET && a->family == AF_INET6) { | |
680 | if (a->data[0] == 0 && a->data[1] == 0 && | |
681 | a->data[2] == htonl(0xffff)) { | |
682 | inet_prefix tmp = *a; | |
683 | tmp.data[0] = a->data[3]; | |
684 | return inet_addr_match(&tmp, p, plen); | |
685 | } | |
686 | } | |
687 | return 1; | |
688 | } | |
689 | ||
7d105b56 | 690 | int unix_match(const inet_prefix *a, const inet_prefix *p) |
aba5acdf SH |
691 | { |
692 | char *addr, *pattern; | |
693 | memcpy(&addr, a->data, sizeof(addr)); | |
694 | memcpy(&pattern, p->data, sizeof(pattern)); | |
695 | if (pattern == NULL) | |
696 | return 1; | |
697 | if (addr == NULL) | |
698 | addr = ""; | |
699 | return !fnmatch(pattern, addr, 0); | |
700 | } | |
701 | ||
702 | int run_ssfilter(struct ssfilter *f, struct tcpstat *s) | |
703 | { | |
704 | switch (f->type) { | |
705 | case SSF_S_AUTO: | |
706 | { | |
707 | static int low, high=65535; | |
708 | ||
709 | if (s->local.family == AF_UNIX) { | |
710 | char *p; | |
711 | memcpy(&p, s->local.data, sizeof(p)); | |
712 | return p == NULL || (p[0] == '@' && strlen(p) == 6 && | |
ae665a52 | 713 | strspn(p+1, "0123456789abcdef") == 5); |
aba5acdf SH |
714 | } |
715 | if (s->local.family == AF_PACKET) | |
716 | return s->lport == 0 && s->local.data == 0; | |
717 | if (s->local.family == AF_NETLINK) | |
718 | return s->lport < 0; | |
719 | ||
720 | if (!low) { | |
ab01dbbb | 721 | FILE *fp = ephemeral_ports_open(); |
aba5acdf SH |
722 | if (fp) { |
723 | fscanf(fp, "%d%d", &low, &high); | |
724 | fclose(fp); | |
725 | } | |
726 | } | |
727 | return s->lport >= low && s->lport <= high; | |
728 | } | |
729 | case SSF_DCOND: | |
730 | { | |
731 | struct aafilter *a = (void*)f->pred; | |
732 | if (a->addr.family == AF_UNIX) | |
733 | return unix_match(&s->remote, &a->addr); | |
734 | if (a->port != -1 && a->port != s->rport) | |
735 | return 0; | |
736 | if (a->addr.bitlen) { | |
737 | do { | |
738 | if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen)) | |
739 | return 1; | |
740 | } while ((a = a->next) != NULL); | |
741 | return 0; | |
742 | } | |
743 | return 1; | |
744 | } | |
745 | case SSF_SCOND: | |
746 | { | |
747 | struct aafilter *a = (void*)f->pred; | |
748 | if (a->addr.family == AF_UNIX) | |
749 | return unix_match(&s->local, &a->addr); | |
750 | if (a->port != -1 && a->port != s->lport) | |
751 | return 0; | |
752 | if (a->addr.bitlen) { | |
753 | do { | |
754 | if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen)) | |
755 | return 1; | |
ae665a52 | 756 | } while ((a = a->next) != NULL); |
aba5acdf SH |
757 | return 0; |
758 | } | |
759 | return 1; | |
760 | } | |
761 | case SSF_D_GE: | |
762 | { | |
763 | struct aafilter *a = (void*)f->pred; | |
764 | return s->rport >= a->port; | |
765 | } | |
766 | case SSF_D_LE: | |
767 | { | |
768 | struct aafilter *a = (void*)f->pred; | |
769 | return s->rport <= a->port; | |
770 | } | |
771 | case SSF_S_GE: | |
772 | { | |
773 | struct aafilter *a = (void*)f->pred; | |
774 | return s->lport >= a->port; | |
775 | } | |
776 | case SSF_S_LE: | |
777 | { | |
778 | struct aafilter *a = (void*)f->pred; | |
779 | return s->lport <= a->port; | |
780 | } | |
781 | ||
782 | /* Yup. It is recursion. Sorry. */ | |
783 | case SSF_AND: | |
784 | return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s); | |
785 | case SSF_OR: | |
786 | return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s); | |
787 | case SSF_NOT: | |
788 | return !run_ssfilter(f->pred, s); | |
789 | default: | |
790 | abort(); | |
791 | } | |
792 | } | |
793 | ||
ae665a52 | 794 | /* Relocate external jumps by reloc. */ |
b4b0b7d5 | 795 | static void ssfilter_patch(char *a, int len, int reloc) |
aba5acdf SH |
796 | { |
797 | while (len > 0) { | |
351efcde | 798 | struct inet_diag_bc_op *op = (struct inet_diag_bc_op*)a; |
aba5acdf SH |
799 | if (op->no == len+4) |
800 | op->no += reloc; | |
801 | len -= op->yes; | |
802 | a += op->yes; | |
803 | } | |
804 | if (len < 0) | |
805 | abort(); | |
806 | } | |
807 | ||
b4b0b7d5 | 808 | static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode) |
aba5acdf SH |
809 | { |
810 | switch (f->type) { | |
811 | case SSF_S_AUTO: | |
812 | { | |
813 | if (!(*bytecode=malloc(4))) abort(); | |
351efcde | 814 | ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 }; |
df39de8d | 815 | return 4; |
aba5acdf SH |
816 | } |
817 | case SSF_DCOND: | |
818 | case SSF_SCOND: | |
819 | { | |
820 | struct aafilter *a = (void*)f->pred; | |
821 | struct aafilter *b; | |
822 | char *ptr; | |
351efcde | 823 | int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND); |
aba5acdf SH |
824 | int len = 0; |
825 | ||
826 | for (b=a; b; b=b->next) { | |
351efcde | 827 | len += 4 + sizeof(struct inet_diag_hostcond); |
aba5acdf SH |
828 | if (a->addr.family == AF_INET6) |
829 | len += 16; | |
830 | else | |
831 | len += 4; | |
832 | if (b->next) | |
833 | len += 4; | |
834 | } | |
835 | if (!(ptr = malloc(len))) abort(); | |
836 | *bytecode = ptr; | |
837 | for (b=a; b; b=b->next) { | |
351efcde | 838 | struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr; |
aba5acdf | 839 | int alen = (a->addr.family == AF_INET6 ? 16 : 4); |
351efcde SH |
840 | int oplen = alen + 4 + sizeof(struct inet_diag_hostcond); |
841 | struct inet_diag_hostcond *cond = (struct inet_diag_hostcond*)(ptr+4); | |
aba5acdf | 842 | |
351efcde | 843 | *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 }; |
aba5acdf SH |
844 | cond->family = a->addr.family; |
845 | cond->port = a->port; | |
846 | cond->prefix_len = a->addr.bitlen; | |
847 | memcpy(cond->addr, a->addr.data, alen); | |
848 | ptr += oplen; | |
849 | if (b->next) { | |
351efcde SH |
850 | op = (struct inet_diag_bc_op *)ptr; |
851 | *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)}; | |
aba5acdf SH |
852 | ptr += 4; |
853 | } | |
854 | } | |
855 | return ptr - *bytecode; | |
856 | } | |
857 | case SSF_D_GE: | |
858 | { | |
859 | struct aafilter *x = (void*)f->pred; | |
860 | if (!(*bytecode=malloc(8))) abort(); | |
351efcde SH |
861 | ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 }; |
862 | ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
863 | return 8; |
864 | } | |
865 | case SSF_D_LE: | |
866 | { | |
867 | struct aafilter *x = (void*)f->pred; | |
868 | if (!(*bytecode=malloc(8))) abort(); | |
351efcde SH |
869 | ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 }; |
870 | ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
871 | return 8; |
872 | } | |
873 | case SSF_S_GE: | |
874 | { | |
875 | struct aafilter *x = (void*)f->pred; | |
876 | if (!(*bytecode=malloc(8))) abort(); | |
351efcde SH |
877 | ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 }; |
878 | ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
879 | return 8; |
880 | } | |
881 | case SSF_S_LE: | |
882 | { | |
883 | struct aafilter *x = (void*)f->pred; | |
884 | if (!(*bytecode=malloc(8))) abort(); | |
351efcde SH |
885 | ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 }; |
886 | ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
887 | return 8; |
888 | } | |
889 | ||
890 | case SSF_AND: | |
891 | { | |
892 | char *a1, *a2, *a, l1, l2; | |
893 | l1 = ssfilter_bytecompile(f->pred, &a1); | |
894 | l2 = ssfilter_bytecompile(f->post, &a2); | |
895 | if (!(a = malloc(l1+l2))) abort(); | |
896 | memcpy(a, a1, l1); | |
897 | memcpy(a+l1, a2, l2); | |
898 | free(a1); free(a2); | |
899 | ssfilter_patch(a, l1, l2); | |
900 | *bytecode = a; | |
901 | return l1+l2; | |
902 | } | |
903 | case SSF_OR: | |
904 | { | |
905 | char *a1, *a2, *a, l1, l2; | |
906 | l1 = ssfilter_bytecompile(f->pred, &a1); | |
907 | l2 = ssfilter_bytecompile(f->post, &a2); | |
908 | if (!(a = malloc(l1+l2+4))) abort(); | |
909 | memcpy(a, a1, l1); | |
910 | memcpy(a+l1+4, a2, l2); | |
911 | free(a1); free(a2); | |
351efcde | 912 | *(struct inet_diag_bc_op*)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 }; |
aba5acdf SH |
913 | *bytecode = a; |
914 | return l1+l2+4; | |
915 | } | |
916 | case SSF_NOT: | |
917 | { | |
918 | char *a1, *a, l1; | |
919 | l1 = ssfilter_bytecompile(f->pred, &a1); | |
920 | if (!(a = malloc(l1+4))) abort(); | |
921 | memcpy(a, a1, l1); | |
922 | free(a1); | |
351efcde | 923 | *(struct inet_diag_bc_op*)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 }; |
aba5acdf SH |
924 | *bytecode = a; |
925 | return l1+4; | |
926 | } | |
927 | default: | |
928 | abort(); | |
929 | } | |
930 | } | |
931 | ||
b4b0b7d5 | 932 | static int remember_he(struct aafilter *a, struct hostent *he) |
aba5acdf | 933 | { |
ae665a52 | 934 | char **ptr = he->h_addr_list; |
aba5acdf SH |
935 | int cnt = 0; |
936 | int len; | |
937 | ||
938 | if (he->h_addrtype == AF_INET) | |
939 | len = 4; | |
940 | else if (he->h_addrtype == AF_INET6) | |
941 | len = 16; | |
942 | else | |
943 | return 0; | |
944 | ||
945 | while (*ptr) { | |
946 | struct aafilter *b = a; | |
947 | if (a->addr.bitlen) { | |
948 | if ((b = malloc(sizeof(*b))) == NULL) | |
949 | return cnt; | |
950 | *b = *a; | |
951 | b->next = a->next; | |
952 | a->next = b; | |
953 | } | |
954 | memcpy(b->addr.data, *ptr, len); | |
955 | b->addr.bytelen = len; | |
956 | b->addr.bitlen = len*8; | |
957 | b->addr.family = he->h_addrtype; | |
958 | ptr++; | |
959 | cnt++; | |
960 | } | |
961 | return cnt; | |
962 | } | |
963 | ||
b4b0b7d5 | 964 | static int get_dns_host(struct aafilter *a, const char *addr, int fam) |
aba5acdf SH |
965 | { |
966 | static int notfirst; | |
967 | int cnt = 0; | |
968 | struct hostent *he; | |
969 | ||
970 | a->addr.bitlen = 0; | |
971 | if (!notfirst) { | |
972 | sethostent(1); | |
973 | notfirst = 1; | |
974 | } | |
975 | he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam); | |
976 | if (he) | |
977 | cnt = remember_he(a, he); | |
978 | if (fam == AF_UNSPEC) { | |
979 | he = gethostbyname2(addr, AF_INET6); | |
980 | if (he) | |
981 | cnt += remember_he(a, he); | |
982 | } | |
983 | return !cnt; | |
984 | } | |
985 | ||
b4b0b7d5 | 986 | static int xll_initted = 0; |
aba5acdf | 987 | |
b4b0b7d5 | 988 | static void xll_init(void) |
aba5acdf SH |
989 | { |
990 | struct rtnl_handle rth; | |
991 | rtnl_open(&rth, 0); | |
992 | ll_init_map(&rth); | |
993 | rtnl_close(&rth); | |
994 | xll_initted = 1; | |
995 | } | |
996 | ||
b4b0b7d5 | 997 | static const char *xll_index_to_name(int index) |
aba5acdf SH |
998 | { |
999 | if (!xll_initted) | |
1000 | xll_init(); | |
1001 | return ll_index_to_name(index); | |
1002 | } | |
1003 | ||
b4b0b7d5 | 1004 | static int xll_name_to_index(const char *dev) |
aba5acdf SH |
1005 | { |
1006 | if (!xll_initted) | |
1007 | xll_init(); | |
1008 | return ll_name_to_index(dev); | |
1009 | } | |
1010 | ||
1011 | void *parse_hostcond(char *addr) | |
1012 | { | |
1013 | char *port = NULL; | |
1014 | struct aafilter a; | |
1015 | struct aafilter *res; | |
1016 | int fam = preferred_family; | |
1017 | ||
1018 | memset(&a, 0, sizeof(a)); | |
1019 | a.port = -1; | |
1020 | ||
1021 | if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) { | |
1022 | char *p; | |
1023 | a.addr.family = AF_UNIX; | |
1024 | if (strncmp(addr, "unix:", 5) == 0) | |
1025 | addr+=5; | |
1026 | p = strdup(addr); | |
1027 | a.addr.bitlen = 8*strlen(p); | |
1028 | memcpy(a.addr.data, &p, sizeof(p)); | |
1029 | goto out; | |
1030 | } | |
1031 | ||
1032 | if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) { | |
1033 | a.addr.family = AF_PACKET; | |
1034 | a.addr.bitlen = 0; | |
1035 | if (strncmp(addr, "link:", 5) == 0) | |
1036 | addr+=5; | |
1037 | port = strchr(addr, ':'); | |
1038 | if (port) { | |
1039 | *port = 0; | |
1040 | if (port[1] && strcmp(port+1, "*")) { | |
1041 | if (get_integer(&a.port, port+1, 0)) { | |
1042 | if ((a.port = xll_name_to_index(port+1)) <= 0) | |
1043 | return NULL; | |
1044 | } | |
1045 | } | |
1046 | } | |
1047 | if (addr[0] && strcmp(addr, "*")) { | |
1048 | unsigned short tmp; | |
1049 | a.addr.bitlen = 32; | |
1050 | if (ll_proto_a2n(&tmp, addr)) | |
1051 | return NULL; | |
1052 | a.addr.data[0] = ntohs(tmp); | |
1053 | } | |
1054 | goto out; | |
1055 | } | |
1056 | ||
1057 | if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) { | |
1058 | a.addr.family = AF_NETLINK; | |
1059 | a.addr.bitlen = 0; | |
1060 | if (strncmp(addr, "netlink:", 8) == 0) | |
1061 | addr+=8; | |
1062 | port = strchr(addr, ':'); | |
1063 | if (port) { | |
1064 | *port = 0; | |
1065 | if (port[1] && strcmp(port+1, "*")) { | |
1066 | if (get_integer(&a.port, port+1, 0)) { | |
1067 | if (strcmp(port+1, "kernel") == 0) | |
1068 | a.port = 0; | |
1069 | else | |
1070 | return NULL; | |
1071 | } | |
1072 | } | |
1073 | } | |
1074 | if (addr[0] && strcmp(addr, "*")) { | |
1075 | a.addr.bitlen = 32; | |
1076 | if (get_u32(a.addr.data, addr, 0)) { | |
1077 | if (strcmp(addr, "rtnl") == 0) | |
1078 | a.addr.data[0] = 0; | |
1079 | else if (strcmp(addr, "fw") == 0) | |
1080 | a.addr.data[0] = 3; | |
1081 | else if (strcmp(addr, "tcpdiag") == 0) | |
1082 | a.addr.data[0] = 4; | |
1083 | else | |
1084 | return NULL; | |
1085 | } | |
1086 | } | |
1087 | goto out; | |
1088 | } | |
1089 | ||
1090 | if (strncmp(addr, "inet:", 5) == 0) { | |
1091 | addr += 5; | |
1092 | fam = AF_INET; | |
1093 | } else if (strncmp(addr, "inet6:", 6) == 0) { | |
1094 | addr += 6; | |
1095 | fam = AF_INET6; | |
1096 | } | |
1097 | ||
1098 | /* URL-like literal [] */ | |
1099 | if (addr[0] == '[') { | |
1100 | addr++; | |
1101 | if ((port = strchr(addr, ']')) == NULL) | |
1102 | return NULL; | |
1103 | *port++ = 0; | |
1104 | } else if (addr[0] == '*') { | |
1105 | port = addr+1; | |
1106 | } else { | |
1107 | port = strrchr(strchr(addr, '/') ? : addr, ':'); | |
1108 | } | |
1109 | if (port && *port) { | |
1110 | if (*port != ':') | |
1111 | return NULL; | |
1112 | *port++ = 0; | |
1113 | if (*port && *port != '*') { | |
1114 | if (get_integer(&a.port, port, 0)) { | |
1115 | struct servent *se1 = NULL; | |
1116 | struct servent *se2 = NULL; | |
1117 | if (current_filter.dbs&(1<<UDP_DB)) | |
1118 | se1 = getservbyname(port, UDP_PROTO); | |
1119 | if (current_filter.dbs&(1<<TCP_DB)) | |
1120 | se2 = getservbyname(port, TCP_PROTO); | |
1121 | if (se1 && se2 && se1->s_port != se2->s_port) { | |
1122 | fprintf(stderr, "Error: ambiguous port \"%s\".\n", port); | |
1123 | return NULL; | |
1124 | } | |
1125 | if (!se1) | |
1126 | se1 = se2; | |
1127 | if (se1) { | |
1128 | a.port = ntohs(se1->s_port); | |
1129 | } else { | |
1130 | struct scache *s; | |
1131 | for (s = rlist; s; s = s->next) { | |
1132 | if ((s->proto == UDP_PROTO && | |
1133 | (current_filter.dbs&(1<<UDP_DB))) || | |
1134 | (s->proto == TCP_PROTO && | |
1135 | (current_filter.dbs&(1<<TCP_DB)))) { | |
1136 | if (s->name && strcmp(s->name, port) == 0) { | |
1137 | if (a.port > 0 && a.port != s->port) { | |
1138 | fprintf(stderr, "Error: ambiguous port \"%s\".\n", port); | |
1139 | return NULL; | |
1140 | } | |
1141 | a.port = s->port; | |
1142 | } | |
1143 | } | |
1144 | } | |
1145 | if (a.port <= 0) { | |
1146 | fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port); | |
1147 | return NULL; | |
1148 | } | |
1149 | } | |
1150 | } | |
1151 | } | |
1152 | } | |
1153 | if (addr && *addr && *addr != '*') { | |
1154 | if (get_prefix_1(&a.addr, addr, fam)) { | |
1155 | if (get_dns_host(&a, addr, fam)) { | |
1156 | fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr); | |
1157 | return NULL; | |
1158 | } | |
1159 | } | |
1160 | } | |
1161 | ||
1162 | out: | |
1163 | res = malloc(sizeof(*res)); | |
1164 | if (res) | |
1165 | memcpy(res, &a, sizeof(a)); | |
1166 | return res; | |
1167 | } | |
1168 | ||
ab01dbbb | 1169 | static int tcp_show_line(char *line, const struct filter *f, int family) |
aba5acdf SH |
1170 | { |
1171 | struct tcpstat s; | |
1172 | char *loc, *rem, *data; | |
1173 | char opt[256]; | |
1174 | int n; | |
1175 | char *p; | |
ae665a52 | 1176 | |
aba5acdf SH |
1177 | if ((p = strchr(line, ':')) == NULL) |
1178 | return -1; | |
1179 | loc = p+2; | |
ae665a52 | 1180 | |
aba5acdf SH |
1181 | if ((p = strchr(loc, ':')) == NULL) |
1182 | return -1; | |
1183 | p[5] = 0; | |
1184 | rem = p+6; | |
ae665a52 | 1185 | |
aba5acdf SH |
1186 | if ((p = strchr(rem, ':')) == NULL) |
1187 | return -1; | |
1188 | p[5] = 0; | |
1189 | data = p+6; | |
ae665a52 | 1190 | |
aba5acdf SH |
1191 | do { |
1192 | int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0'); | |
1193 | ||
1194 | if (!(f->states & (1<<state))) | |
1195 | return 0; | |
1196 | } while (0); | |
ae665a52 | 1197 | |
aba5acdf SH |
1198 | s.local.family = s.remote.family = family; |
1199 | if (family == AF_INET) { | |
1200 | sscanf(loc, "%x:%x", s.local.data, (unsigned*)&s.lport); | |
1201 | sscanf(rem, "%x:%x", s.remote.data, (unsigned*)&s.rport); | |
1202 | s.local.bytelen = s.remote.bytelen = 4; | |
1203 | } else { | |
1204 | sscanf(loc, "%08x%08x%08x%08x:%x", | |
1205 | s.local.data, | |
1206 | s.local.data+1, | |
1207 | s.local.data+2, | |
1208 | s.local.data+3, | |
1209 | &s.lport); | |
1210 | sscanf(rem, "%08x%08x%08x%08x:%x", | |
1211 | s.remote.data, | |
1212 | s.remote.data+1, | |
1213 | s.remote.data+2, | |
1214 | s.remote.data+3, | |
1215 | &s.rport); | |
1216 | s.local.bytelen = s.remote.bytelen = 16; | |
1217 | } | |
ae665a52 | 1218 | |
aba5acdf SH |
1219 | if (f->f && run_ssfilter(f->f, &s) == 0) |
1220 | return 0; | |
ae665a52 | 1221 | |
aba5acdf | 1222 | opt[0] = 0; |
e7113c61 | 1223 | n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %d %d %[^\n]\n", |
aba5acdf SH |
1224 | &s.state, &s.wq, &s.rq, |
1225 | &s.timer, &s.timeout, &s.retrs, &s.uid, &s.probes, &s.ino, | |
1226 | &s.refcnt, &s.sk, &s.rto, &s.ato, &s.qack, | |
1227 | &s.cwnd, &s.ssthresh, opt); | |
ae665a52 | 1228 | |
aba5acdf SH |
1229 | if (n < 17) |
1230 | opt[0] = 0; | |
ae665a52 | 1231 | |
aba5acdf SH |
1232 | if (n < 12) { |
1233 | s.rto = 0; | |
1234 | s.cwnd = 2; | |
1235 | s.ssthresh = -1; | |
1236 | s.ato = s.qack = 0; | |
1237 | } | |
ae665a52 | 1238 | |
aba5acdf SH |
1239 | if (netid_width) |
1240 | printf("%-*s ", netid_width, "tcp"); | |
1241 | if (state_width) | |
1242 | printf("%-*s ", state_width, sstate_name[s.state]); | |
ae665a52 | 1243 | |
aba5acdf | 1244 | printf("%-6d %-6d ", s.rq, s.wq); |
ae665a52 | 1245 | |
aba5acdf SH |
1246 | formatted_print(&s.local, s.lport); |
1247 | formatted_print(&s.remote, s.rport); | |
ae665a52 | 1248 | |
aba5acdf SH |
1249 | if (show_options) { |
1250 | if (s.timer) { | |
1251 | if (s.timer > 4) | |
1252 | s.timer = 5; | |
1253 | printf(" timer:(%s,%s,%d)", | |
1254 | tmr_name[s.timer], | |
1255 | print_hz_timer(s.timeout), | |
1256 | s.timer != 1 ? s.probes : s.retrs); | |
1257 | } | |
1258 | } | |
1259 | if (show_tcpinfo) { | |
4c1db131 SH |
1260 | int hz = get_user_hz(); |
1261 | if (s.rto && s.rto != 3*hz) | |
1262 | printf(" rto:%g", (double)s.rto/hz); | |
aba5acdf | 1263 | if (s.ato) |
4c1db131 | 1264 | printf(" ato:%g", (double)s.ato/hz); |
aba5acdf SH |
1265 | if (s.cwnd != 2) |
1266 | printf(" cwnd:%d", s.cwnd); | |
1267 | if (s.ssthresh != -1) | |
1268 | printf(" ssthresh:%d", s.ssthresh); | |
1269 | if (s.qack/2) | |
1270 | printf(" qack:%d", s.qack/2); | |
1271 | if (s.qack&1) | |
1272 | printf(" bidir"); | |
1273 | } | |
1274 | if (show_users) { | |
1275 | char ubuf[4096]; | |
1276 | if (find_users(s.ino, ubuf, sizeof(ubuf)) > 0) | |
1277 | printf(" users:(%s)", ubuf); | |
1278 | } | |
1279 | if (show_details) { | |
1280 | if (s.uid) | |
1281 | printf(" uid:%u", (unsigned)s.uid); | |
e7113c61 | 1282 | printf(" ino:%u", s.ino); |
aba5acdf SH |
1283 | printf(" sk:%llx", s.sk); |
1284 | if (opt[0]) | |
1285 | printf(" opt:\"%s\"", opt); | |
1286 | } | |
1287 | printf("\n"); | |
1288 | ||
1289 | return 0; | |
1290 | } | |
1291 | ||
ab01dbbb SH |
1292 | static int generic_record_read(FILE *fp, |
1293 | int (*worker)(char*, const struct filter *, int), | |
1294 | const struct filter *f, int fam) | |
aba5acdf | 1295 | { |
ab01dbbb | 1296 | char line[256]; |
aba5acdf | 1297 | |
ab01dbbb SH |
1298 | /* skip header */ |
1299 | if (fgets(line, sizeof(line), fp) == NULL) | |
aba5acdf | 1300 | goto outerr; |
ab01dbbb SH |
1301 | |
1302 | while (fgets(line, sizeof(line), fp) != NULL) { | |
1303 | int n = strlen(line); | |
1304 | if (n == 0 || line[n-1] != '\n') { | |
1305 | errno = -EINVAL; | |
1306 | return -1; | |
aba5acdf | 1307 | } |
ab01dbbb | 1308 | line[n-1] = 0; |
aba5acdf | 1309 | |
ab01dbbb SH |
1310 | if (worker(line, f, fam) < 0) |
1311 | return 0; | |
1312 | } | |
aba5acdf | 1313 | outerr: |
ab01dbbb SH |
1314 | |
1315 | return ferror(fp) ? -1 : 0; | |
aba5acdf | 1316 | } |
ae665a52 | 1317 | |
b4b0b7d5 SH |
1318 | static char *sprint_bw(char *buf, double bw) |
1319 | { | |
ae665a52 | 1320 | if (bw > 1000000.) |
b4b0b7d5 SH |
1321 | sprintf(buf,"%.1fM", bw / 1000000.); |
1322 | else if (bw > 1000.) | |
1323 | sprintf(buf,"%.1fK", bw / 1000.); | |
1324 | else | |
1325 | sprintf(buf, "%g", bw); | |
1326 | ||
1327 | return buf; | |
1328 | } | |
aba5acdf | 1329 | |
351efcde | 1330 | static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r) |
7d105b56 | 1331 | { |
351efcde | 1332 | struct rtattr * tb[INET_DIAG_MAX+1]; |
b4b0b7d5 SH |
1333 | char b1[64]; |
1334 | double rtt = 0; | |
7d105b56 | 1335 | |
351efcde | 1336 | parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr*)(r+1), |
7d105b56 SH |
1337 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); |
1338 | ||
910b0397 | 1339 | if (tb[INET_DIAG_SKMEMINFO]) { |
c6d6c92c ED |
1340 | const __u32 *skmeminfo = RTA_DATA(tb[INET_DIAG_SKMEMINFO]); |
1341 | ||
1342 | printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u", | |
910b0397 SW |
1343 | skmeminfo[SK_MEMINFO_RMEM_ALLOC], |
1344 | skmeminfo[SK_MEMINFO_RCVBUF], | |
1345 | skmeminfo[SK_MEMINFO_WMEM_ALLOC], | |
1346 | skmeminfo[SK_MEMINFO_SNDBUF], | |
1347 | skmeminfo[SK_MEMINFO_FWD_ALLOC], | |
1348 | skmeminfo[SK_MEMINFO_WMEM_QUEUED], | |
1349 | skmeminfo[SK_MEMINFO_OPTMEM]); | |
c6d6c92c ED |
1350 | |
1351 | if (RTA_PAYLOAD(tb[INET_DIAG_SKMEMINFO]) >= | |
1352 | (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32)) | |
1353 | printf(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]); | |
1354 | ||
1355 | printf(")"); | |
1356 | } else if (tb[INET_DIAG_MEMINFO]) { | |
351efcde SH |
1357 | const struct inet_diag_meminfo *minfo |
1358 | = RTA_DATA(tb[INET_DIAG_MEMINFO]); | |
7d105b56 | 1359 | printf(" mem:(r%u,w%u,f%u,t%u)", |
351efcde SH |
1360 | minfo->idiag_rmem, |
1361 | minfo->idiag_wmem, | |
1362 | minfo->idiag_fmem, | |
1363 | minfo->idiag_tmem); | |
7d105b56 SH |
1364 | } |
1365 | ||
351efcde | 1366 | if (tb[INET_DIAG_INFO]) { |
05e18118 | 1367 | struct tcp_info *info; |
351efcde | 1368 | int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]); |
05e18118 SH |
1369 | |
1370 | /* workaround for older kernels with less fields */ | |
1371 | if (len < sizeof(*info)) { | |
1372 | info = alloca(sizeof(*info)); | |
1373 | memset(info, 0, sizeof(*info)); | |
351efcde | 1374 | memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len); |
05e18118 | 1375 | } else |
351efcde | 1376 | info = RTA_DATA(tb[INET_DIAG_INFO]); |
05e18118 | 1377 | |
b4b0b7d5 SH |
1378 | if (show_options) { |
1379 | if (info->tcpi_options & TCPI_OPT_TIMESTAMPS) | |
1380 | printf(" ts"); | |
1381 | if (info->tcpi_options & TCPI_OPT_SACK) | |
1382 | printf(" sack"); | |
1383 | if (info->tcpi_options & TCPI_OPT_ECN) | |
1384 | printf(" ecn"); | |
719b958b ED |
1385 | if (info->tcpi_options & TCPI_OPT_ECN_SEEN) |
1386 | printf(" ecnseen"); | |
b4b0b7d5 | 1387 | } |
52d5ac3f | 1388 | |
351efcde | 1389 | if (tb[INET_DIAG_CONG]) |
ff24746c | 1390 | printf(" %s", rta_getattr_str(tb[INET_DIAG_CONG])); |
ea8fc104 | 1391 | |
ae665a52 | 1392 | if (info->tcpi_options & TCPI_OPT_WSCALE) |
05e18118 SH |
1393 | printf(" wscale:%d,%d", info->tcpi_snd_wscale, |
1394 | info->tcpi_rcv_wscale); | |
7d105b56 SH |
1395 | if (info->tcpi_rto && info->tcpi_rto != 3000000) |
1396 | printf(" rto:%g", (double)info->tcpi_rto/1000); | |
1397 | if (info->tcpi_rtt) | |
1398 | printf(" rtt:%g/%g", (double)info->tcpi_rtt/1000, | |
1399 | (double)info->tcpi_rttvar/1000); | |
1400 | if (info->tcpi_ato) | |
1401 | printf(" ato:%g", (double)info->tcpi_ato/1000); | |
4d354347 BH |
1402 | if (info->tcpi_snd_mss) |
1403 | printf(" mss:%d", info->tcpi_snd_mss); | |
7d105b56 SH |
1404 | if (info->tcpi_snd_cwnd != 2) |
1405 | printf(" cwnd:%d", info->tcpi_snd_cwnd); | |
1406 | if (info->tcpi_snd_ssthresh < 0xFFFF) | |
1407 | printf(" ssthresh:%d", info->tcpi_snd_ssthresh); | |
52d5ac3f | 1408 | |
b4b0b7d5 | 1409 | rtt = (double) info->tcpi_rtt; |
351efcde | 1410 | if (tb[INET_DIAG_VEGASINFO]) { |
05e18118 | 1411 | const struct tcpvegas_info *vinfo |
351efcde | 1412 | = RTA_DATA(tb[INET_DIAG_VEGASINFO]); |
7d105b56 | 1413 | |
ae665a52 | 1414 | if (vinfo->tcpv_enabled && |
ea8fc104 SH |
1415 | vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff) |
1416 | rtt = vinfo->tcpv_rtt; | |
b4b0b7d5 SH |
1417 | } |
1418 | ||
1419 | if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) { | |
1420 | printf(" send %sbps", | |
1421 | sprint_bw(b1, (double) info->tcpi_snd_cwnd * | |
1422 | (double) info->tcpi_snd_mss * 8000000. | |
1423 | / rtt)); | |
7d105b56 | 1424 | } |
b4b0b7d5 SH |
1425 | |
1426 | if (info->tcpi_rcv_rtt) | |
1427 | printf(" rcv_rtt:%g", (double) info->tcpi_rcv_rtt/1000); | |
1428 | if (info->tcpi_rcv_space) | |
1429 | printf(" rcv_space:%d", info->tcpi_rcv_space); | |
1430 | ||
7d105b56 | 1431 | } |
7d105b56 | 1432 | } |
aba5acdf | 1433 | |
ab01dbbb | 1434 | static int tcp_show_sock(struct nlmsghdr *nlh, struct filter *f) |
aba5acdf | 1435 | { |
351efcde | 1436 | struct inet_diag_msg *r = NLMSG_DATA(nlh); |
aba5acdf SH |
1437 | struct tcpstat s; |
1438 | ||
351efcde SH |
1439 | s.state = r->idiag_state; |
1440 | s.local.family = s.remote.family = r->idiag_family; | |
1441 | s.lport = ntohs(r->id.idiag_sport); | |
1442 | s.rport = ntohs(r->id.idiag_dport); | |
aba5acdf SH |
1443 | if (s.local.family == AF_INET) { |
1444 | s.local.bytelen = s.remote.bytelen = 4; | |
1445 | } else { | |
1446 | s.local.bytelen = s.remote.bytelen = 16; | |
1447 | } | |
351efcde SH |
1448 | memcpy(s.local.data, r->id.idiag_src, s.local.bytelen); |
1449 | memcpy(s.remote.data, r->id.idiag_dst, s.local.bytelen); | |
aba5acdf SH |
1450 | |
1451 | if (f && f->f && run_ssfilter(f->f, &s) == 0) | |
1452 | return 0; | |
1453 | ||
1454 | if (netid_width) | |
1455 | printf("%-*s ", netid_width, "tcp"); | |
1456 | if (state_width) | |
1457 | printf("%-*s ", state_width, sstate_name[s.state]); | |
1458 | ||
351efcde | 1459 | printf("%-6d %-6d ", r->idiag_rqueue, r->idiag_wqueue); |
aba5acdf SH |
1460 | |
1461 | formatted_print(&s.local, s.lport); | |
1462 | formatted_print(&s.remote, s.rport); | |
1463 | ||
1464 | if (show_options) { | |
351efcde SH |
1465 | if (r->idiag_timer) { |
1466 | if (r->idiag_timer > 4) | |
1467 | r->idiag_timer = 5; | |
aba5acdf | 1468 | printf(" timer:(%s,%s,%d)", |
351efcde SH |
1469 | tmr_name[r->idiag_timer], |
1470 | print_ms_timer(r->idiag_expires), | |
1471 | r->idiag_retrans); | |
aba5acdf SH |
1472 | } |
1473 | } | |
1474 | if (show_users) { | |
1475 | char ubuf[4096]; | |
351efcde | 1476 | if (find_users(r->idiag_inode, ubuf, sizeof(ubuf)) > 0) |
aba5acdf SH |
1477 | printf(" users:(%s)", ubuf); |
1478 | } | |
1479 | if (show_details) { | |
351efcde SH |
1480 | if (r->idiag_uid) |
1481 | printf(" uid:%u", (unsigned)r->idiag_uid); | |
e7113c61 | 1482 | printf(" ino:%u", r->idiag_inode); |
bbe32053 | 1483 | printf(" sk:"); |
351efcde SH |
1484 | if (r->id.idiag_cookie[1] != 0) |
1485 | printf("%08x", r->id.idiag_cookie[1]); | |
bbe32053 | 1486 | printf("%08x", r->id.idiag_cookie[0]); |
aba5acdf SH |
1487 | } |
1488 | if (show_mem || show_tcpinfo) { | |
7d105b56 SH |
1489 | printf("\n\t"); |
1490 | tcp_show_info(nlh, r); | |
aba5acdf | 1491 | } |
7d105b56 | 1492 | |
aba5acdf SH |
1493 | printf("\n"); |
1494 | ||
1495 | return 0; | |
aba5acdf SH |
1496 | } |
1497 | ||
ab01dbbb | 1498 | static int tcp_show_netlink(struct filter *f, FILE *dump_fp, int socktype) |
aba5acdf SH |
1499 | { |
1500 | int fd; | |
1501 | struct sockaddr_nl nladdr; | |
1502 | struct { | |
1503 | struct nlmsghdr nlh; | |
351efcde | 1504 | struct inet_diag_req r; |
aba5acdf SH |
1505 | } req; |
1506 | char *bc = NULL; | |
1507 | int bclen; | |
1508 | struct msghdr msg; | |
1509 | struct rtattr rta; | |
1510 | char buf[8192]; | |
1511 | struct iovec iov[3]; | |
1512 | ||
351efcde | 1513 | if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_INET_DIAG)) < 0) |
aba5acdf SH |
1514 | return -1; |
1515 | ||
1516 | memset(&nladdr, 0, sizeof(nladdr)); | |
1517 | nladdr.nl_family = AF_NETLINK; | |
1518 | ||
1519 | req.nlh.nlmsg_len = sizeof(req); | |
351efcde | 1520 | req.nlh.nlmsg_type = socktype; |
aba5acdf SH |
1521 | req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST; |
1522 | req.nlh.nlmsg_pid = 0; | |
1523 | req.nlh.nlmsg_seq = 123456; | |
1524 | memset(&req.r, 0, sizeof(req.r)); | |
351efcde SH |
1525 | req.r.idiag_family = AF_INET; |
1526 | req.r.idiag_states = f->states; | |
910b0397 | 1527 | if (show_mem) { |
ae665a52 | 1528 | req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1)); |
910b0397 SW |
1529 | req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1)); |
1530 | } | |
b4b0b7d5 | 1531 | |
7d105b56 | 1532 | if (show_tcpinfo) { |
351efcde SH |
1533 | req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1)); |
1534 | req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1)); | |
1535 | req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1)); | |
7d105b56 | 1536 | } |
aba5acdf | 1537 | |
ae665a52 SH |
1538 | iov[0] = (struct iovec){ |
1539 | .iov_base = &req, | |
1540 | .iov_len = sizeof(req) | |
ea8fc104 | 1541 | }; |
aba5acdf SH |
1542 | if (f->f) { |
1543 | bclen = ssfilter_bytecompile(f->f, &bc); | |
351efcde | 1544 | rta.rta_type = INET_DIAG_REQ_BYTECODE; |
aba5acdf SH |
1545 | rta.rta_len = RTA_LENGTH(bclen); |
1546 | iov[1] = (struct iovec){ &rta, sizeof(rta) }; | |
1547 | iov[2] = (struct iovec){ bc, bclen }; | |
1548 | req.nlh.nlmsg_len += RTA_LENGTH(bclen); | |
1549 | } | |
1550 | ||
1551 | msg = (struct msghdr) { | |
ae665a52 | 1552 | .msg_name = (void*)&nladdr, |
ea8fc104 | 1553 | .msg_namelen = sizeof(nladdr), |
ae665a52 | 1554 | .msg_iov = iov, |
ea8fc104 | 1555 | .msg_iovlen = f->f ? 3 : 1, |
aba5acdf SH |
1556 | }; |
1557 | ||
930a75f9 ED |
1558 | if (sendmsg(fd, &msg, 0) < 0) { |
1559 | close(fd); | |
aba5acdf | 1560 | return -1; |
930a75f9 | 1561 | } |
aba5acdf | 1562 | |
ae665a52 SH |
1563 | iov[0] = (struct iovec){ |
1564 | .iov_base = buf, | |
1565 | .iov_len = sizeof(buf) | |
ea8fc104 | 1566 | }; |
aba5acdf SH |
1567 | |
1568 | while (1) { | |
1569 | int status; | |
1570 | struct nlmsghdr *h; | |
1571 | ||
1572 | msg = (struct msghdr) { | |
1573 | (void*)&nladdr, sizeof(nladdr), | |
1574 | iov, 1, | |
1575 | NULL, 0, | |
1576 | 0 | |
1577 | }; | |
1578 | ||
1579 | status = recvmsg(fd, &msg, 0); | |
1580 | ||
1581 | if (status < 0) { | |
1582 | if (errno == EINTR) | |
1583 | continue; | |
1584 | perror("OVERRUN"); | |
1585 | continue; | |
1586 | } | |
1587 | if (status == 0) { | |
1588 | fprintf(stderr, "EOF on netlink\n"); | |
c51577cd | 1589 | close(fd); |
aba5acdf SH |
1590 | return 0; |
1591 | } | |
1592 | ||
1593 | if (dump_fp) | |
1594 | fwrite(buf, 1, NLMSG_ALIGN(status), dump_fp); | |
1595 | ||
1596 | h = (struct nlmsghdr*)buf; | |
1597 | while (NLMSG_OK(h, status)) { | |
1598 | int err; | |
a37b01c1 | 1599 | struct inet_diag_msg *r = NLMSG_DATA(h); |
aba5acdf SH |
1600 | |
1601 | if (/*h->nlmsg_pid != rth->local.nl_pid ||*/ | |
1602 | h->nlmsg_seq != 123456) | |
1603 | goto skip_it; | |
1604 | ||
c51577cd MT |
1605 | if (h->nlmsg_type == NLMSG_DONE) { |
1606 | close(fd); | |
aba5acdf | 1607 | return 0; |
c51577cd | 1608 | } |
aba5acdf SH |
1609 | if (h->nlmsg_type == NLMSG_ERROR) { |
1610 | struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h); | |
1611 | if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) { | |
1612 | fprintf(stderr, "ERROR truncated\n"); | |
1613 | } else { | |
1614 | errno = -err->error; | |
930a75f9 ED |
1615 | if (errno == EOPNOTSUPP) { |
1616 | close(fd); | |
1617 | return -1; | |
1618 | } | |
aba5acdf SH |
1619 | perror("TCPDIAG answers"); |
1620 | } | |
c51577cd | 1621 | close(fd); |
aba5acdf SH |
1622 | return 0; |
1623 | } | |
1624 | if (!dump_fp) { | |
a37b01c1 LY |
1625 | if (!(f->families & (1<<r->idiag_family))) { |
1626 | h = NLMSG_NEXT(h, status); | |
1627 | continue; | |
1628 | } | |
aba5acdf | 1629 | err = tcp_show_sock(h, NULL); |
c51577cd MT |
1630 | if (err < 0) { |
1631 | close(fd); | |
aba5acdf | 1632 | return err; |
c51577cd | 1633 | } |
aba5acdf SH |
1634 | } |
1635 | ||
1636 | skip_it: | |
1637 | h = NLMSG_NEXT(h, status); | |
1638 | } | |
1639 | if (msg.msg_flags & MSG_TRUNC) { | |
1640 | fprintf(stderr, "Message truncated\n"); | |
1641 | continue; | |
1642 | } | |
1643 | if (status) { | |
1644 | fprintf(stderr, "!!!Remnant of size %d\n", status); | |
1645 | exit(1); | |
1646 | } | |
1647 | } | |
c51577cd | 1648 | close(fd); |
aba5acdf SH |
1649 | return 0; |
1650 | } | |
1651 | ||
ab01dbbb | 1652 | static int tcp_show_netlink_file(struct filter *f) |
aba5acdf SH |
1653 | { |
1654 | FILE *fp; | |
1655 | char buf[8192]; | |
1656 | ||
1657 | if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) { | |
1658 | perror("fopen($TCPDIAG_FILE)"); | |
1659 | return -1; | |
1660 | } | |
1661 | ||
1662 | while (1) { | |
1663 | int status, err; | |
1664 | struct nlmsghdr *h = (struct nlmsghdr*)buf; | |
1665 | ||
1666 | status = fread(buf, 1, sizeof(*h), fp); | |
1667 | if (status < 0) { | |
1668 | perror("Reading header from $TCPDIAG_FILE"); | |
1669 | return -1; | |
1670 | } | |
1671 | if (status != sizeof(*h)) { | |
1672 | perror("Unexpected EOF reading $TCPDIAG_FILE"); | |
1673 | return -1; | |
1674 | } | |
1675 | ||
1676 | status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp); | |
1677 | ||
1678 | if (status < 0) { | |
1679 | perror("Reading $TCPDIAG_FILE"); | |
1680 | return -1; | |
1681 | } | |
1682 | if (status + sizeof(*h) < h->nlmsg_len) { | |
1683 | perror("Unexpected EOF reading $TCPDIAG_FILE"); | |
1684 | return -1; | |
1685 | } | |
1686 | ||
1687 | /* The only legal exit point */ | |
1688 | if (h->nlmsg_type == NLMSG_DONE) | |
1689 | return 0; | |
1690 | ||
1691 | if (h->nlmsg_type == NLMSG_ERROR) { | |
1692 | struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h); | |
1693 | if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) { | |
1694 | fprintf(stderr, "ERROR truncated\n"); | |
1695 | } else { | |
1696 | errno = -err->error; | |
1697 | perror("TCPDIAG answered"); | |
1698 | } | |
1699 | return -1; | |
1700 | } | |
1701 | ||
1702 | err = tcp_show_sock(h, f); | |
1703 | if (err < 0) | |
1704 | return err; | |
1705 | } | |
1706 | } | |
1707 | ||
ab01dbbb | 1708 | static int tcp_show(struct filter *f, int socktype) |
aba5acdf | 1709 | { |
ab01dbbb | 1710 | FILE *fp = NULL; |
aba5acdf SH |
1711 | char *buf = NULL; |
1712 | int bufsize = 64*1024; | |
1713 | ||
1714 | dg_proto = TCP_PROTO; | |
1715 | ||
1716 | if (getenv("TCPDIAG_FILE")) | |
1717 | return tcp_show_netlink_file(f); | |
1718 | ||
1719 | if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT") | |
351efcde | 1720 | && tcp_show_netlink(f, NULL, socktype) == 0) |
aba5acdf SH |
1721 | return 0; |
1722 | ||
1723 | /* Sigh... We have to parse /proc/net/tcp... */ | |
1724 | ||
ab01dbbb | 1725 | |
aba5acdf SH |
1726 | /* Estimate amount of sockets and try to allocate |
1727 | * huge buffer to read all the table at one read. | |
1728 | * Limit it by 16MB though. The assumption is: as soon as | |
1729 | * kernel was able to hold information about N connections, | |
1730 | * it is able to give us some memory for snapshot. | |
1731 | */ | |
1732 | if (1) { | |
1733 | int guess = slabstat.socks+slabstat.tcp_syns; | |
1734 | if (f->states&(1<<SS_TIME_WAIT)) | |
1735 | guess += slabstat.tcp_tws; | |
1736 | if (guess > (16*1024*1024)/128) | |
1737 | guess = (16*1024*1024)/128; | |
1738 | guess *= 128; | |
1739 | if (guess > bufsize) | |
1740 | bufsize = guess; | |
1741 | } | |
1742 | while (bufsize >= 64*1024) { | |
1743 | if ((buf = malloc(bufsize)) != NULL) | |
1744 | break; | |
1745 | bufsize /= 2; | |
1746 | } | |
1747 | if (buf == NULL) { | |
1748 | errno = ENOMEM; | |
1749 | return -1; | |
1750 | } | |
1751 | ||
1752 | if (f->families & (1<<AF_INET)) { | |
69cae645 | 1753 | if ((fp = net_tcp_open()) == NULL) |
aba5acdf | 1754 | goto outerr; |
ab01dbbb SH |
1755 | |
1756 | setbuffer(fp, buf, bufsize); | |
1757 | if (generic_record_read(fp, tcp_show_line, f, AF_INET)) | |
aba5acdf | 1758 | goto outerr; |
ab01dbbb | 1759 | fclose(fp); |
aba5acdf SH |
1760 | } |
1761 | ||
1762 | if ((f->families & (1<<AF_INET6)) && | |
69cae645 | 1763 | (fp = net_tcp6_open()) != NULL) { |
ab01dbbb SH |
1764 | setbuffer(fp, buf, bufsize); |
1765 | if (generic_record_read(fp, tcp_show_line, f, AF_INET6)) | |
aba5acdf | 1766 | goto outerr; |
ab01dbbb | 1767 | fclose(fp); |
aba5acdf SH |
1768 | } |
1769 | ||
1770 | free(buf); | |
1771 | return 0; | |
1772 | ||
1773 | outerr: | |
1774 | do { | |
1775 | int saved_errno = errno; | |
1776 | if (buf) | |
1777 | free(buf); | |
ab01dbbb SH |
1778 | if (fp) |
1779 | fclose(fp); | |
aba5acdf SH |
1780 | errno = saved_errno; |
1781 | return -1; | |
1782 | } while (0); | |
1783 | } | |
1784 | ||
1785 | ||
ab01dbbb | 1786 | int dgram_show_line(char *line, const struct filter *f, int family) |
aba5acdf SH |
1787 | { |
1788 | struct tcpstat s; | |
1789 | char *loc, *rem, *data; | |
1790 | char opt[256]; | |
1791 | int n; | |
1792 | char *p; | |
1793 | ||
1794 | if ((p = strchr(line, ':')) == NULL) | |
1795 | return -1; | |
1796 | loc = p+2; | |
1797 | ||
1798 | if ((p = strchr(loc, ':')) == NULL) | |
1799 | return -1; | |
1800 | p[5] = 0; | |
1801 | rem = p+6; | |
1802 | ||
1803 | if ((p = strchr(rem, ':')) == NULL) | |
1804 | return -1; | |
1805 | p[5] = 0; | |
1806 | data = p+6; | |
1807 | ||
1808 | do { | |
1809 | int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0'); | |
1810 | ||
1811 | if (!(f->states & (1<<state))) | |
1812 | return 0; | |
1813 | } while (0); | |
1814 | ||
1815 | s.local.family = s.remote.family = family; | |
1816 | if (family == AF_INET) { | |
1817 | sscanf(loc, "%x:%x", s.local.data, (unsigned*)&s.lport); | |
1818 | sscanf(rem, "%x:%x", s.remote.data, (unsigned*)&s.rport); | |
1819 | s.local.bytelen = s.remote.bytelen = 4; | |
1820 | } else { | |
1821 | sscanf(loc, "%08x%08x%08x%08x:%x", | |
1822 | s.local.data, | |
1823 | s.local.data+1, | |
1824 | s.local.data+2, | |
1825 | s.local.data+3, | |
1826 | &s.lport); | |
1827 | sscanf(rem, "%08x%08x%08x%08x:%x", | |
1828 | s.remote.data, | |
1829 | s.remote.data+1, | |
1830 | s.remote.data+2, | |
1831 | s.remote.data+3, | |
1832 | &s.rport); | |
1833 | s.local.bytelen = s.remote.bytelen = 16; | |
1834 | } | |
1835 | ||
1836 | if (f->f && run_ssfilter(f->f, &s) == 0) | |
1837 | return 0; | |
1838 | ||
1839 | opt[0] = 0; | |
e7113c61 | 1840 | n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n", |
aba5acdf SH |
1841 | &s.state, &s.wq, &s.rq, |
1842 | &s.uid, &s.ino, | |
1843 | &s.refcnt, &s.sk, opt); | |
1844 | ||
1845 | if (n < 9) | |
1846 | opt[0] = 0; | |
1847 | ||
1848 | if (netid_width) | |
1849 | printf("%-*s ", netid_width, dg_proto); | |
1850 | if (state_width) | |
1851 | printf("%-*s ", state_width, sstate_name[s.state]); | |
1852 | ||
1853 | printf("%-6d %-6d ", s.rq, s.wq); | |
1854 | ||
1855 | formatted_print(&s.local, s.lport); | |
1856 | formatted_print(&s.remote, s.rport); | |
1857 | ||
1858 | if (show_users) { | |
1859 | char ubuf[4096]; | |
1860 | if (find_users(s.ino, ubuf, sizeof(ubuf)) > 0) | |
1861 | printf(" users:(%s)", ubuf); | |
1862 | } | |
1863 | ||
1864 | if (show_details) { | |
1865 | if (s.uid) | |
1866 | printf(" uid=%u", (unsigned)s.uid); | |
e7113c61 | 1867 | printf(" ino=%u", s.ino); |
aba5acdf SH |
1868 | printf(" sk=%llx", s.sk); |
1869 | if (opt[0]) | |
1870 | printf(" opt:\"%s\"", opt); | |
1871 | } | |
1872 | printf("\n"); | |
1873 | ||
1874 | return 0; | |
1875 | } | |
1876 | ||
1877 | ||
1878 | int udp_show(struct filter *f) | |
1879 | { | |
ab01dbbb | 1880 | FILE *fp = NULL; |
aba5acdf SH |
1881 | |
1882 | dg_proto = UDP_PROTO; | |
1883 | ||
1884 | if (f->families&(1<<AF_INET)) { | |
69cae645 | 1885 | if ((fp = net_udp_open()) == NULL) |
aba5acdf | 1886 | goto outerr; |
ab01dbbb | 1887 | if (generic_record_read(fp, dgram_show_line, f, AF_INET)) |
aba5acdf | 1888 | goto outerr; |
ab01dbbb | 1889 | fclose(fp); |
aba5acdf SH |
1890 | } |
1891 | ||
1892 | if ((f->families&(1<<AF_INET6)) && | |
69cae645 | 1893 | (fp = net_udp6_open()) != NULL) { |
ab01dbbb | 1894 | if (generic_record_read(fp, dgram_show_line, f, AF_INET6)) |
aba5acdf | 1895 | goto outerr; |
ab01dbbb | 1896 | fclose(fp); |
aba5acdf SH |
1897 | } |
1898 | return 0; | |
1899 | ||
1900 | outerr: | |
1901 | do { | |
1902 | int saved_errno = errno; | |
ab01dbbb SH |
1903 | if (fp) |
1904 | fclose(fp); | |
aba5acdf SH |
1905 | errno = saved_errno; |
1906 | return -1; | |
1907 | } while (0); | |
1908 | } | |
1909 | ||
1910 | int raw_show(struct filter *f) | |
1911 | { | |
ab01dbbb | 1912 | FILE *fp = NULL; |
aba5acdf SH |
1913 | |
1914 | dg_proto = RAW_PROTO; | |
1915 | ||
1916 | if (f->families&(1<<AF_INET)) { | |
69cae645 | 1917 | if ((fp = net_raw_open()) == NULL) |
aba5acdf | 1918 | goto outerr; |
ab01dbbb | 1919 | if (generic_record_read(fp, dgram_show_line, f, AF_INET)) |
aba5acdf | 1920 | goto outerr; |
ab01dbbb | 1921 | fclose(fp); |
aba5acdf SH |
1922 | } |
1923 | ||
1924 | if ((f->families&(1<<AF_INET6)) && | |
69cae645 | 1925 | (fp = net_raw6_open()) != NULL) { |
ab01dbbb | 1926 | if (generic_record_read(fp, dgram_show_line, f, AF_INET6)) |
aba5acdf | 1927 | goto outerr; |
ab01dbbb | 1928 | fclose(fp); |
aba5acdf SH |
1929 | } |
1930 | return 0; | |
1931 | ||
1932 | outerr: | |
1933 | do { | |
1934 | int saved_errno = errno; | |
ab01dbbb SH |
1935 | if (fp) |
1936 | fclose(fp); | |
aba5acdf SH |
1937 | errno = saved_errno; |
1938 | return -1; | |
1939 | } while (0); | |
1940 | } | |
1941 | ||
1942 | ||
1943 | struct unixstat | |
1944 | { | |
1945 | struct unixstat *next; | |
1946 | int ino; | |
1947 | int peer; | |
1948 | int rq; | |
1949 | int wq; | |
1950 | int state; | |
1951 | int type; | |
1952 | char *name; | |
1953 | }; | |
1954 | ||
1955 | ||
1956 | ||
1957 | int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT, | |
1958 | SS_ESTABLISHED, SS_CLOSING }; | |
1959 | ||
1960 | ||
1961 | #define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct unixstat)) | |
1962 | ||
1963 | void unix_list_free(struct unixstat *list) | |
1964 | { | |
1965 | while (list) { | |
1966 | struct unixstat *s = list; | |
1967 | list = list->next; | |
1968 | if (s->name) | |
1969 | free(s->name); | |
1970 | free(s); | |
1971 | } | |
1972 | } | |
1973 | ||
1974 | void unix_list_print(struct unixstat *list, struct filter *f) | |
1975 | { | |
1976 | struct unixstat *s; | |
1977 | char *peer; | |
1978 | ||
1979 | for (s = list; s; s = s->next) { | |
1980 | if (!(f->states & (1<<s->state))) | |
1981 | continue; | |
1982 | if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB))) | |
1983 | continue; | |
1984 | if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB))) | |
1985 | continue; | |
1986 | ||
1987 | peer = "*"; | |
1988 | if (s->peer) { | |
1989 | struct unixstat *p; | |
1990 | for (p = list; p; p = p->next) { | |
1991 | if (s->peer == p->ino) | |
1992 | break; | |
1993 | } | |
1994 | if (!p) { | |
1995 | peer = "?"; | |
1996 | } else { | |
1997 | peer = p->name ? : "*"; | |
1998 | } | |
1999 | } | |
2000 | ||
2001 | if (f->f) { | |
2002 | struct tcpstat tst; | |
2003 | tst.local.family = AF_UNIX; | |
2004 | tst.remote.family = AF_UNIX; | |
2005 | memcpy(tst.local.data, &s->name, sizeof(s->name)); | |
2006 | if (strcmp(peer, "*") == 0) | |
2007 | memset(tst.remote.data, 0, sizeof(peer)); | |
2008 | else | |
ae665a52 | 2009 | memcpy(tst.remote.data, &peer, sizeof(peer)); |
aba5acdf SH |
2010 | if (run_ssfilter(f->f, &tst) == 0) |
2011 | continue; | |
2012 | } | |
2013 | ||
2014 | if (netid_width) | |
ae665a52 | 2015 | printf("%-*s ", netid_width, |
aba5acdf SH |
2016 | s->type == SOCK_STREAM ? "u_str" : "u_dgr"); |
2017 | if (state_width) | |
2018 | printf("%-*s ", state_width, sstate_name[s->state]); | |
2019 | printf("%-6d %-6d ", s->rq, s->wq); | |
2020 | printf("%*s %-*d %*s %-*d", | |
2021 | addr_width, s->name ? : "*", serv_width, s->ino, | |
2022 | addr_width, peer, serv_width, s->peer); | |
2023 | if (show_users) { | |
2024 | char ubuf[4096]; | |
2025 | if (find_users(s->ino, ubuf, sizeof(ubuf)) > 0) | |
2026 | printf(" users:(%s)", ubuf); | |
2027 | } | |
2028 | printf("\n"); | |
2029 | } | |
2030 | } | |
2031 | ||
dfbaa90d PE |
2032 | static int unix_show_sock(struct nlmsghdr *nlh, struct filter *f) |
2033 | { | |
2034 | struct unix_diag_msg *r = NLMSG_DATA(nlh); | |
2035 | struct rtattr *tb[UNIX_DIAG_MAX+1]; | |
2036 | char name[128]; | |
2037 | int peer_ino; | |
2038 | int rqlen; | |
2039 | ||
2040 | parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr*)(r+1), | |
2041 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); | |
2042 | ||
2043 | if (netid_width) | |
2044 | printf("%-*s ", netid_width, | |
2045 | r->udiag_type == SOCK_STREAM ? "u_str" : "u_dgr"); | |
2046 | if (state_width) | |
2047 | printf("%-*s ", state_width, sstate_name[r->udiag_state]); | |
2048 | ||
2049 | if (tb[UNIX_DIAG_RQLEN]) | |
2050 | rqlen = *(int *)RTA_DATA(tb[UNIX_DIAG_RQLEN]); | |
2051 | else | |
2052 | rqlen = 0; | |
2053 | ||
2054 | printf("%-6d %-6d ", rqlen, 0); | |
2055 | ||
2056 | if (tb[UNIX_DIAG_NAME]) { | |
2057 | int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]); | |
2058 | ||
2059 | memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len); | |
2060 | name[len] = '\0'; | |
2061 | if (name[0] == '\0') | |
2062 | name[0] = '@'; | |
2063 | } else | |
2064 | sprintf(name, "*"); | |
2065 | ||
2066 | if (tb[UNIX_DIAG_PEER]) | |
2067 | peer_ino = *(int *)RTA_DATA(tb[UNIX_DIAG_PEER]); | |
2068 | else | |
2069 | peer_ino = 0; | |
2070 | ||
2071 | printf("%*s %-*d %*s %-*d", | |
2072 | addr_width, name, | |
2073 | serv_width, r->udiag_ino, | |
2074 | addr_width, "*", /* FIXME */ | |
2075 | serv_width, peer_ino); | |
2076 | ||
2077 | if (show_users) { | |
2078 | char ubuf[4096]; | |
2079 | if (find_users(r->udiag_ino, ubuf, sizeof(ubuf)) > 0) | |
2080 | printf(" users:(%s)", ubuf); | |
2081 | } | |
2082 | ||
2083 | printf("\n"); | |
2084 | ||
2085 | return 0; | |
2086 | } | |
2087 | ||
2088 | static int unix_show_netlink(struct filter *f, FILE *dump_fp) | |
2089 | { | |
2090 | int fd; | |
dfbaa90d PE |
2091 | struct { |
2092 | struct nlmsghdr nlh; | |
2093 | struct unix_diag_req r; | |
2094 | } req; | |
dfbaa90d | 2095 | char buf[8192]; |
dfbaa90d PE |
2096 | |
2097 | if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_INET_DIAG)) < 0) | |
2098 | return -1; | |
2099 | ||
2728f598 | 2100 | memset(&req, 0, sizeof(req)); |
dfbaa90d PE |
2101 | req.nlh.nlmsg_len = sizeof(req); |
2102 | req.nlh.nlmsg_type = SOCK_DIAG_BY_FAMILY; | |
2103 | req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST; | |
dfbaa90d | 2104 | req.nlh.nlmsg_seq = 123456; |
2728f598 | 2105 | |
dfbaa90d | 2106 | req.r.sdiag_family = AF_UNIX; |
dfbaa90d PE |
2107 | req.r.udiag_states = f->states; |
2108 | req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN; | |
2109 | ||
2728f598 | 2110 | if (send(fd, &req, sizeof(req), 0) < 0) { |
a3fd8e58 | 2111 | close(fd); |
dfbaa90d | 2112 | return -1; |
a3fd8e58 | 2113 | } |
dfbaa90d | 2114 | |
dfbaa90d | 2115 | while (1) { |
2728f598 | 2116 | ssize_t status; |
dfbaa90d | 2117 | struct nlmsghdr *h; |
2728f598 SH |
2118 | struct sockaddr_nl nladdr; |
2119 | socklen_t slen = sizeof(nladdr); | |
dfbaa90d | 2120 | |
2728f598 SH |
2121 | status = recvfrom(fd, buf, sizeof(buf), 0, |
2122 | (struct sockaddr *) &nladdr, &slen); | |
dfbaa90d PE |
2123 | if (status < 0) { |
2124 | if (errno == EINTR) | |
2125 | continue; | |
2126 | perror("OVERRUN"); | |
2127 | continue; | |
2128 | } | |
2129 | if (status == 0) { | |
2130 | fprintf(stderr, "EOF on netlink\n"); | |
2728f598 | 2131 | goto close_it; |
dfbaa90d PE |
2132 | } |
2133 | ||
2134 | if (dump_fp) | |
2135 | fwrite(buf, 1, NLMSG_ALIGN(status), dump_fp); | |
2136 | ||
2137 | h = (struct nlmsghdr*)buf; | |
2138 | while (NLMSG_OK(h, status)) { | |
2139 | int err; | |
2140 | ||
2141 | if (/*h->nlmsg_pid != rth->local.nl_pid ||*/ | |
2142 | h->nlmsg_seq != 123456) | |
2143 | goto skip_it; | |
2144 | ||
2728f598 SH |
2145 | if (h->nlmsg_type == NLMSG_DONE) |
2146 | goto close_it; | |
2147 | ||
dfbaa90d PE |
2148 | if (h->nlmsg_type == NLMSG_ERROR) { |
2149 | struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h); | |
2150 | if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) { | |
2151 | fprintf(stderr, "ERROR truncated\n"); | |
2152 | } else { | |
2153 | errno = -err->error; | |
a3fd8e58 ED |
2154 | if (errno != ENOENT) |
2155 | fprintf(stderr, "UDIAG answers %d\n", errno); | |
dfbaa90d | 2156 | } |
a3fd8e58 ED |
2157 | close(fd); |
2158 | return -1; | |
dfbaa90d PE |
2159 | } |
2160 | if (!dump_fp) { | |
2161 | err = unix_show_sock(h, f); | |
a3fd8e58 ED |
2162 | if (err < 0) { |
2163 | close(fd); | |
dfbaa90d | 2164 | return err; |
a3fd8e58 | 2165 | } |
dfbaa90d PE |
2166 | } |
2167 | ||
2168 | skip_it: | |
2169 | h = NLMSG_NEXT(h, status); | |
2170 | } | |
2728f598 | 2171 | |
dfbaa90d | 2172 | if (status) { |
2728f598 | 2173 | fprintf(stderr, "!!!Remnant of size %zd\n", status); |
dfbaa90d PE |
2174 | exit(1); |
2175 | } | |
2176 | } | |
2728f598 SH |
2177 | |
2178 | close_it: | |
a3fd8e58 | 2179 | close(fd); |
dfbaa90d PE |
2180 | return 0; |
2181 | } | |
2182 | ||
aba5acdf SH |
2183 | int unix_show(struct filter *f) |
2184 | { | |
2185 | FILE *fp; | |
2186 | char buf[256]; | |
2187 | char name[128]; | |
2188 | int newformat = 0; | |
2189 | int cnt; | |
2190 | struct unixstat *list = NULL; | |
2191 | ||
dfbaa90d PE |
2192 | if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT") |
2193 | && unix_show_netlink(f, NULL) == 0) | |
2194 | return 0; | |
2195 | ||
ab01dbbb | 2196 | if ((fp = net_unix_open()) == NULL) |
aba5acdf SH |
2197 | return -1; |
2198 | fgets(buf, sizeof(buf)-1, fp); | |
2199 | ||
ae665a52 | 2200 | if (memcmp(buf, "Peer", 4) == 0) |
aba5acdf SH |
2201 | newformat = 1; |
2202 | cnt = 0; | |
2203 | ||
2204 | while (fgets(buf, sizeof(buf)-1, fp)) { | |
2205 | struct unixstat *u, **insp; | |
2206 | int flags; | |
2207 | ||
2208 | if (!(u = malloc(sizeof(*u)))) | |
2209 | break; | |
2210 | u->name = NULL; | |
2211 | ||
2212 | if (sscanf(buf, "%x: %x %x %x %x %x %d %s", | |
2213 | &u->peer, &u->rq, &u->wq, &flags, &u->type, | |
2214 | &u->state, &u->ino, name) < 8) | |
2215 | name[0] = 0; | |
2216 | ||
2217 | if (flags&(1<<16)) { | |
2218 | u->state = SS_LISTEN; | |
2219 | } else { | |
2220 | u->state = unix_state_map[u->state-1]; | |
2221 | if (u->type == SOCK_DGRAM && | |
2222 | u->state == SS_CLOSE && | |
2223 | u->peer) | |
2224 | u->state = SS_ESTABLISHED; | |
2225 | } | |
2226 | ||
2227 | if (!newformat) { | |
2228 | u->peer = 0; | |
2229 | u->rq = 0; | |
2230 | u->wq = 0; | |
2231 | } | |
2232 | ||
2233 | insp = &list; | |
2234 | while (*insp) { | |
2235 | if (u->type < (*insp)->type || | |
2236 | (u->type == (*insp)->type && | |
2237 | u->ino < (*insp)->ino)) | |
2238 | break; | |
2239 | insp = &(*insp)->next; | |
2240 | } | |
2241 | u->next = *insp; | |
2242 | *insp = u; | |
2243 | ||
2244 | if (name[0]) { | |
2245 | if ((u->name = malloc(strlen(name)+1)) == NULL) | |
2246 | break; | |
2247 | strcpy(u->name, name); | |
2248 | } | |
2249 | if (++cnt > MAX_UNIX_REMEMBER) { | |
2250 | unix_list_print(list, f); | |
2251 | unix_list_free(list); | |
2252 | list = NULL; | |
2253 | cnt = 0; | |
2254 | } | |
2255 | } | |
a3fd8e58 | 2256 | fclose(fp); |
aba5acdf SH |
2257 | if (list) { |
2258 | unix_list_print(list, f); | |
2259 | unix_list_free(list); | |
2260 | list = NULL; | |
2261 | cnt = 0; | |
2262 | } | |
2263 | ||
2264 | return 0; | |
2265 | } | |
2266 | ||
2267 | ||
2268 | int packet_show(struct filter *f) | |
2269 | { | |
2270 | FILE *fp; | |
2271 | char buf[256]; | |
2272 | int type; | |
2273 | int prot; | |
2274 | int iface; | |
2275 | int state; | |
2276 | int rq; | |
2277 | int uid; | |
2278 | int ino; | |
2279 | unsigned long long sk; | |
2280 | ||
2281 | if (!(f->states & (1<<SS_CLOSE))) | |
2282 | return 0; | |
2283 | ||
ab01dbbb | 2284 | if ((fp = net_packet_open()) == NULL) |
aba5acdf SH |
2285 | return -1; |
2286 | fgets(buf, sizeof(buf)-1, fp); | |
2287 | ||
2288 | while (fgets(buf, sizeof(buf)-1, fp)) { | |
2289 | sscanf(buf, "%llx %*d %d %x %d %d %u %u %u", | |
2290 | &sk, | |
2291 | &type, &prot, &iface, &state, | |
2292 | &rq, &uid, &ino); | |
2293 | ||
2294 | if (type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB))) | |
2295 | continue; | |
2296 | if (type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB))) | |
2297 | continue; | |
2298 | if (f->f) { | |
2299 | struct tcpstat tst; | |
2300 | tst.local.family = AF_PACKET; | |
2301 | tst.remote.family = AF_PACKET; | |
2302 | tst.rport = 0; | |
2303 | tst.lport = iface; | |
2304 | tst.local.data[0] = prot; | |
2305 | tst.remote.data[0] = 0; | |
2306 | if (run_ssfilter(f->f, &tst) == 0) | |
2307 | continue; | |
2308 | } | |
2309 | ||
2310 | if (netid_width) | |
ae665a52 | 2311 | printf("%-*s ", netid_width, |
aba5acdf SH |
2312 | type == SOCK_RAW ? "p_raw" : "p_dgr"); |
2313 | if (state_width) | |
2314 | printf("%-*s ", state_width, "UNCONN"); | |
2315 | printf("%-6d %-6d ", rq, 0); | |
2316 | if (prot == 3) { | |
2317 | printf("%*s:", addr_width, "*"); | |
2318 | } else { | |
2319 | char tb[16]; | |
ae665a52 | 2320 | printf("%*s:", addr_width, |
aba5acdf SH |
2321 | ll_proto_n2a(htons(prot), tb, sizeof(tb))); |
2322 | } | |
2323 | if (iface == 0) { | |
2324 | printf("%-*s ", serv_width, "*"); | |
2325 | } else { | |
2326 | printf("%-*s ", serv_width, xll_index_to_name(iface)); | |
2327 | } | |
2328 | printf("%*s*%-*s", | |
2329 | addr_width, "", serv_width, ""); | |
2330 | ||
2331 | if (show_users) { | |
2332 | char ubuf[4096]; | |
2333 | if (find_users(ino, ubuf, sizeof(ubuf)) > 0) | |
2334 | printf(" users:(%s)", ubuf); | |
2335 | } | |
2336 | if (show_details) { | |
2337 | printf(" ino=%u uid=%u sk=%llx", ino, uid, sk); | |
2338 | } | |
2339 | printf("\n"); | |
2340 | } | |
2341 | ||
2342 | return 0; | |
2343 | } | |
2344 | ||
2345 | int netlink_show(struct filter *f) | |
2346 | { | |
2347 | FILE *fp; | |
2348 | char buf[256]; | |
2349 | int prot, pid; | |
2350 | unsigned groups; | |
2351 | int rq, wq, rc; | |
2352 | unsigned long long sk, cb; | |
2353 | ||
2354 | if (!(f->states & (1<<SS_CLOSE))) | |
2355 | return 0; | |
2356 | ||
ab01dbbb | 2357 | if ((fp = net_netlink_open()) == NULL) |
aba5acdf SH |
2358 | return -1; |
2359 | fgets(buf, sizeof(buf)-1, fp); | |
2360 | ||
2361 | while (fgets(buf, sizeof(buf)-1, fp)) { | |
2362 | sscanf(buf, "%llx %d %d %x %d %d %llx %d", | |
2363 | &sk, | |
2364 | &prot, &pid, &groups, &rq, &wq, &cb, &rc); | |
2365 | ||
2366 | if (f->f) { | |
2367 | struct tcpstat tst; | |
2368 | tst.local.family = AF_NETLINK; | |
2369 | tst.remote.family = AF_NETLINK; | |
2370 | tst.rport = -1; | |
2371 | tst.lport = pid; | |
2372 | tst.local.data[0] = prot; | |
2373 | tst.remote.data[0] = 0; | |
2374 | if (run_ssfilter(f->f, &tst) == 0) | |
2375 | continue; | |
2376 | } | |
2377 | ||
2378 | if (netid_width) | |
ae665a52 | 2379 | printf("%-*s ", netid_width, "nl"); |
aba5acdf SH |
2380 | if (state_width) |
2381 | printf("%-*s ", state_width, "UNCONN"); | |
2382 | printf("%-6d %-6d ", rq, wq); | |
2383 | if (resolve_services && prot == 0) | |
2384 | printf("%*s:", addr_width, "rtnl"); | |
2385 | else if (resolve_services && prot == 3) | |
2386 | printf("%*s:", addr_width, "fw"); | |
2387 | else if (resolve_services && prot == 4) | |
2388 | printf("%*s:", addr_width, "tcpdiag"); | |
2389 | else | |
2390 | printf("%*d:", addr_width, prot); | |
2391 | if (pid == -1) { | |
2392 | printf("%-*s ", serv_width, "*"); | |
2393 | } else if (resolve_services) { | |
2394 | int done = 0; | |
2395 | if (!pid) { | |
2396 | done = 1; | |
2397 | printf("%-*s ", serv_width, "kernel"); | |
2398 | } else if (pid > 0) { | |
2399 | char procname[64]; | |
2400 | FILE *fp; | |
2401 | sprintf(procname, "%s/%d/stat", | |
2402 | getenv("PROC_ROOT") ? : "/proc", pid); | |
2403 | if ((fp = fopen(procname, "r")) != NULL) { | |
2404 | if (fscanf(fp, "%*d (%[^)])", procname) == 1) { | |
ae665a52 | 2405 | sprintf(procname+strlen(procname), "/%d", pid); |
aba5acdf SH |
2406 | printf("%-*s ", serv_width, procname); |
2407 | done = 1; | |
2408 | } | |
2409 | fclose(fp); | |
2410 | } | |
2411 | } | |
2412 | if (!done) | |
2413 | printf("%-*d ", serv_width, pid); | |
2414 | } else { | |
2415 | printf("%-*d ", serv_width, pid); | |
2416 | } | |
2417 | printf("%*s*%-*s", | |
2418 | addr_width, "", serv_width, ""); | |
2419 | ||
2420 | if (show_details) { | |
2421 | printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups); | |
2422 | } | |
2423 | printf("\n"); | |
2424 | } | |
2425 | ||
2426 | return 0; | |
2427 | } | |
2428 | ||
2429 | struct snmpstat | |
2430 | { | |
2431 | int tcp_estab; | |
2432 | }; | |
2433 | ||
2434 | int get_snmp_int(char *proto, char *key, int *result) | |
2435 | { | |
2436 | char buf[1024]; | |
2437 | FILE *fp; | |
2438 | int protolen = strlen(proto); | |
2439 | int keylen = strlen(key); | |
2440 | ||
2441 | *result = 0; | |
2442 | ||
ab01dbbb | 2443 | if ((fp = net_snmp_open()) == NULL) |
aba5acdf SH |
2444 | return -1; |
2445 | ||
2446 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
2447 | char *p = buf; | |
2448 | int pos = 0; | |
2449 | if (memcmp(buf, proto, protolen)) | |
2450 | continue; | |
2451 | while ((p = strchr(p, ' ')) != NULL) { | |
2452 | pos++; | |
2453 | p++; | |
2454 | if (memcmp(p, key, keylen) == 0 && | |
2455 | (p[keylen] == ' ' || p[keylen] == '\n')) | |
2456 | break; | |
2457 | } | |
2458 | if (fgets(buf, sizeof(buf), fp) == NULL) | |
2459 | break; | |
2460 | if (memcmp(buf, proto, protolen)) | |
2461 | break; | |
2462 | p = buf; | |
2463 | while ((p = strchr(p, ' ')) != NULL) { | |
2464 | p++; | |
2465 | if (--pos == 0) { | |
2466 | sscanf(p, "%d", result); | |
2467 | fclose(fp); | |
2468 | return 0; | |
2469 | } | |
2470 | } | |
2471 | } | |
2472 | ||
2473 | fclose(fp); | |
2474 | errno = ESRCH; | |
2475 | return -1; | |
2476 | } | |
2477 | ||
2478 | ||
2479 | /* Get stats from sockstat */ | |
2480 | ||
2481 | struct sockstat | |
2482 | { | |
2483 | int socks; | |
2484 | int tcp_mem; | |
2485 | int tcp_total; | |
2486 | int tcp_orphans; | |
2487 | int tcp_tws; | |
2488 | int tcp4_hashed; | |
2489 | int udp4; | |
2490 | int raw4; | |
2491 | int frag4; | |
2492 | int frag4_mem; | |
2493 | int tcp6_hashed; | |
2494 | int udp6; | |
2495 | int raw6; | |
2496 | int frag6; | |
2497 | int frag6_mem; | |
2498 | }; | |
2499 | ||
2500 | static void get_sockstat_line(char *line, struct sockstat *s) | |
2501 | { | |
2502 | char id[256], rem[256]; | |
2503 | ||
2504 | if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2) | |
2505 | return; | |
2506 | ||
2507 | if (strcmp(id, "sockets:") == 0) | |
2508 | sscanf(rem, "%*s%d", &s->socks); | |
2509 | else if (strcmp(id, "UDP:") == 0) | |
2510 | sscanf(rem, "%*s%d", &s->udp4); | |
2511 | else if (strcmp(id, "UDP6:") == 0) | |
2512 | sscanf(rem, "%*s%d", &s->udp6); | |
2513 | else if (strcmp(id, "RAW:") == 0) | |
2514 | sscanf(rem, "%*s%d", &s->raw4); | |
2515 | else if (strcmp(id, "RAW6:") == 0) | |
2516 | sscanf(rem, "%*s%d", &s->raw6); | |
2517 | else if (strcmp(id, "TCP6:") == 0) | |
2518 | sscanf(rem, "%*s%d", &s->tcp6_hashed); | |
2519 | else if (strcmp(id, "FRAG:") == 0) | |
2520 | sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem); | |
2521 | else if (strcmp(id, "FRAG6:") == 0) | |
2522 | sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem); | |
2523 | else if (strcmp(id, "TCP:") == 0) | |
2524 | sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d", | |
2525 | &s->tcp4_hashed, | |
2526 | &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem); | |
2527 | } | |
2528 | ||
2529 | int get_sockstat(struct sockstat *s) | |
2530 | { | |
2531 | char buf[256]; | |
2532 | FILE *fp; | |
2533 | ||
2534 | memset(s, 0, sizeof(*s)); | |
2535 | ||
ab01dbbb | 2536 | if ((fp = net_sockstat_open()) == NULL) |
aba5acdf SH |
2537 | return -1; |
2538 | while(fgets(buf, sizeof(buf), fp) != NULL) | |
2539 | get_sockstat_line(buf, s); | |
2540 | fclose(fp); | |
2541 | ||
ab01dbbb | 2542 | if ((fp = net_sockstat6_open()) == NULL) |
aba5acdf SH |
2543 | return 0; |
2544 | while(fgets(buf, sizeof(buf), fp) != NULL) | |
2545 | get_sockstat_line(buf, s); | |
2546 | fclose(fp); | |
2547 | ||
2548 | return 0; | |
2549 | } | |
2550 | ||
2551 | int print_summary(void) | |
2552 | { | |
2553 | struct sockstat s; | |
2554 | struct snmpstat sn; | |
2555 | ||
2556 | if (get_sockstat(&s) < 0) | |
2557 | perror("ss: get_sockstat"); | |
2558 | if (get_snmp_int("Tcp:", "CurrEstab", &sn.tcp_estab) < 0) | |
2559 | perror("ss: get_snmpstat"); | |
2560 | ||
2561 | printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks); | |
2562 | ||
2563 | printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n", | |
2564 | s.tcp_total + slabstat.tcp_syns + s.tcp_tws, | |
2565 | sn.tcp_estab, | |
2566 | s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws), | |
2567 | s.tcp_orphans, | |
2568 | slabstat.tcp_syns, | |
2569 | s.tcp_tws, slabstat.tcp_tws, | |
2570 | slabstat.tcp_ports | |
2571 | ); | |
2572 | ||
2573 | printf("\n"); | |
2574 | printf("Transport Total IP IPv6\n"); | |
2575 | printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-"); | |
2576 | printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6); | |
2577 | printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6); | |
2578 | printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed); | |
ae665a52 | 2579 | printf("INET %-9d %-9d %-9d\n", |
aba5acdf SH |
2580 | s.raw4+s.udp4+s.tcp4_hashed+ |
2581 | s.raw6+s.udp6+s.tcp6_hashed, | |
2582 | s.raw4+s.udp4+s.tcp4_hashed, | |
2583 | s.raw6+s.udp6+s.tcp6_hashed); | |
2584 | printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6); | |
2585 | ||
2586 | printf("\n"); | |
2587 | ||
2588 | return 0; | |
2589 | } | |
2590 | ||
7a96e199 | 2591 | static void _usage(FILE *dest) |
aba5acdf | 2592 | { |
7a96e199 | 2593 | fprintf(dest, |
aba5acdf SH |
2594 | "Usage: ss [ OPTIONS ]\n" |
2595 | " ss [ OPTIONS ] [ FILTER ]\n" | |
ab61159a SH |
2596 | " -h, --help this message\n" |
2597 | " -V, --version output version information\n" | |
2598 | " -n, --numeric don't resolve service names\n" | |
2599 | " -r, --resolve resolve host names\n" | |
2600 | " -a, --all display all sockets\n" | |
2601 | " -l, --listening display listening sockets\n" | |
2602 | " -o, --options show timer information\n" | |
2603 | " -e, --extended show detailed socket information\n" | |
2604 | " -m, --memory show socket memory usage\n" | |
2605 | " -p, --processes show process using socket\n" | |
2606 | " -i, --info show internal TCP information\n" | |
2607 | " -s, --summary show socket usage summary\n" | |
2608 | "\n" | |
2609 | " -4, --ipv4 display only IP version 4 sockets\n" | |
2610 | " -6, --ipv6 display only IP version 6 sockets\n" | |
2611 | " -0, --packet display PACKET sockets\n" | |
2612 | " -t, --tcp display only TCP sockets\n" | |
2613 | " -u, --udp display only UDP sockets\n" | |
351efcde | 2614 | " -d, --dccp display only DCCP sockets\n" |
ab61159a SH |
2615 | " -w, --raw display only RAW sockets\n" |
2616 | " -x, --unix display only Unix domain sockets\n" | |
2617 | " -f, --family=FAMILY display sockets of type FAMILY\n" | |
2618 | "\n" | |
583de149 | 2619 | " -A, --query=QUERY, --socket=QUERY\n" |
aba5acdf | 2620 | " QUERY := {all|inet|tcp|udp|raw|unix|packet|netlink}[,QUERY]\n" |
ab61159a | 2621 | "\n" |
583de149 | 2622 | " -D, --diag=FILE Dump raw information about TCP sockets to FILE\n" |
ab61159a | 2623 | " -F, --filter=FILE read filter information from FILE\n" |
aba5acdf | 2624 | " FILTER := [ state TCP-STATE ] [ EXPRESSION ]\n" |
ab61159a | 2625 | ); |
7a96e199 AH |
2626 | } |
2627 | ||
2628 | static void help(void) __attribute__((noreturn)); | |
2629 | static void help(void) | |
2630 | { | |
2631 | _usage(stdout); | |
2632 | exit(0); | |
2633 | } | |
2634 | ||
2635 | static void usage(void) __attribute__((noreturn)); | |
2636 | static void usage(void) | |
2637 | { | |
2638 | _usage(stderr); | |
aba5acdf SH |
2639 | exit(-1); |
2640 | } | |
2641 | ||
2642 | ||
7d105b56 | 2643 | int scan_state(const char *state) |
aba5acdf SH |
2644 | { |
2645 | int i; | |
2646 | if (strcasecmp(state, "close") == 0 || | |
2647 | strcasecmp(state, "closed") == 0) | |
2648 | return (1<<SS_CLOSE); | |
2649 | if (strcasecmp(state, "syn-rcv") == 0) | |
2650 | return (1<<SS_SYN_RECV); | |
1a5bad5a | 2651 | if (strcasecmp(state, "established") == 0) |
aba5acdf SH |
2652 | return (1<<SS_ESTABLISHED); |
2653 | if (strcasecmp(state, "all") == 0) | |
2654 | return SS_ALL; | |
2655 | if (strcasecmp(state, "connected") == 0) | |
2656 | return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)); | |
1a5bad5a | 2657 | if (strcasecmp(state, "synchronized") == 0) |
aba5acdf SH |
2658 | return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT)); |
2659 | if (strcasecmp(state, "bucket") == 0) | |
2660 | return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT); | |
2661 | if (strcasecmp(state, "big") == 0) | |
2662 | return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT)); | |
2663 | for (i=0; i<SS_MAX; i++) { | |
1a5bad5a | 2664 | if (strcasecmp(state, sstate_namel[i]) == 0) |
aba5acdf SH |
2665 | return (1<<i); |
2666 | } | |
2667 | return 0; | |
2668 | } | |
2669 | ||
ab61159a SH |
2670 | static const struct option long_opts[] = { |
2671 | { "numeric", 0, 0, 'n' }, | |
2672 | { "resolve", 0, 0, 'r' }, | |
2673 | { "options", 0, 0, 'o' }, | |
2674 | { "extended", 0, 0, 'e' }, | |
2675 | { "memory", 0, 0, 'm' }, | |
2676 | { "info", 0, 0, 'i' }, | |
2677 | { "processes", 0, 0, 'p' }, | |
351efcde | 2678 | { "dccp", 0, 0, 'd' }, |
ab61159a SH |
2679 | { "tcp", 0, 0, 't' }, |
2680 | { "udp", 0, 0, 'u' }, | |
2681 | { "raw", 0, 0, 'w' }, | |
2682 | { "unix", 0, 0, 'x' }, | |
2683 | { "all", 0, 0, 'a' }, | |
2684 | { "listening", 0, 0, 'l' }, | |
2685 | { "ipv4", 0, 0, '4' }, | |
2686 | { "ipv6", 0, 0, '6' }, | |
2687 | { "packet", 0, 0, '0' }, | |
2688 | { "family", 1, 0, 'f' }, | |
2689 | { "socket", 1, 0, 'A' }, | |
583de149 | 2690 | { "query", 1, 0, 'A' }, |
c3f346b0 | 2691 | { "summary", 0, 0, 's' }, |
583de149 | 2692 | { "diag", 1, 0, 'D' }, |
ab61159a SH |
2693 | { "filter", 1, 0, 'F' }, |
2694 | { "version", 0, 0, 'V' }, | |
2695 | { "help", 0, 0, 'h' }, | |
2696 | { 0 } | |
ae665a52 | 2697 | |
ab61159a SH |
2698 | }; |
2699 | ||
aba5acdf SH |
2700 | int main(int argc, char *argv[]) |
2701 | { | |
2702 | int do_default = 1; | |
2703 | int saw_states = 0; | |
2704 | int saw_query = 0; | |
2705 | int do_summary = 0; | |
7d105b56 | 2706 | const char *dump_tcpdiag = NULL; |
aba5acdf SH |
2707 | FILE *filter_fp = NULL; |
2708 | int ch; | |
2709 | ||
2710 | memset(¤t_filter, 0, sizeof(current_filter)); | |
2711 | ||
2712 | current_filter.states = default_filter.states; | |
2713 | ||
351efcde | 2714 | while ((ch = getopt_long(argc, argv, "dhaletuwxnro460spf:miA:D:F:vV", |
ab61159a | 2715 | long_opts, NULL)) != EOF) { |
aba5acdf SH |
2716 | switch(ch) { |
2717 | case 'n': | |
2718 | resolve_services = 0; | |
2719 | break; | |
2720 | case 'r': | |
2721 | resolve_hosts = 1; | |
2722 | break; | |
2723 | case 'o': | |
2724 | show_options = 1; | |
2725 | break; | |
2726 | case 'e': | |
2727 | show_options = 1; | |
2728 | show_details++; | |
2729 | break; | |
2730 | case 'm': | |
2731 | show_mem = 1; | |
2732 | break; | |
2733 | case 'i': | |
2734 | show_tcpinfo = 1; | |
2735 | break; | |
2736 | case 'p': | |
2737 | show_users++; | |
fbc0f876 | 2738 | user_ent_hash_build(); |
aba5acdf | 2739 | break; |
351efcde SH |
2740 | case 'd': |
2741 | current_filter.dbs |= (1<<DCCP_DB); | |
2742 | do_default = 0; | |
2743 | break; | |
aba5acdf SH |
2744 | case 't': |
2745 | current_filter.dbs |= (1<<TCP_DB); | |
2746 | do_default = 0; | |
2747 | break; | |
2748 | case 'u': | |
2749 | current_filter.dbs |= (1<<UDP_DB); | |
2750 | do_default = 0; | |
2751 | break; | |
2752 | case 'w': | |
2753 | current_filter.dbs |= (1<<RAW_DB); | |
2754 | do_default = 0; | |
2755 | break; | |
2756 | case 'x': | |
2757 | current_filter.dbs |= UNIX_DBM; | |
2758 | do_default = 0; | |
2759 | break; | |
2760 | case 'a': | |
2761 | current_filter.states = SS_ALL; | |
2762 | break; | |
2763 | case 'l': | |
16963ce6 | 2764 | current_filter.states = (1<<SS_LISTEN) | (1<<SS_CLOSE); |
aba5acdf SH |
2765 | break; |
2766 | case '4': | |
2767 | preferred_family = AF_INET; | |
2768 | break; | |
2769 | case '6': | |
2770 | preferred_family = AF_INET6; | |
2771 | break; | |
2772 | case '0': | |
2773 | preferred_family = AF_PACKET; | |
2774 | break; | |
2775 | case 'f': | |
2776 | if (strcmp(optarg, "inet") == 0) | |
2777 | preferred_family = AF_INET; | |
2778 | else if (strcmp(optarg, "inet6") == 0) | |
2779 | preferred_family = AF_INET6; | |
2780 | else if (strcmp(optarg, "link") == 0) | |
2781 | preferred_family = AF_PACKET; | |
2782 | else if (strcmp(optarg, "unix") == 0) | |
2783 | preferred_family = AF_UNIX; | |
2784 | else if (strcmp(optarg, "netlink") == 0) | |
2785 | preferred_family = AF_NETLINK; | |
2786 | else if (strcmp(optarg, "help") == 0) | |
7a96e199 | 2787 | help(); |
aba5acdf SH |
2788 | else { |
2789 | fprintf(stderr, "ss: \"%s\" is invalid family\n", optarg); | |
2790 | usage(); | |
2791 | } | |
2792 | break; | |
2793 | case 'A': | |
2794 | { | |
2795 | char *p, *p1; | |
2796 | if (!saw_query) { | |
2797 | current_filter.dbs = 0; | |
2798 | saw_query = 1; | |
2799 | do_default = 0; | |
2800 | } | |
2801 | p = p1 = optarg; | |
2802 | do { | |
2803 | if ((p1 = strchr(p, ',')) != NULL) | |
ae665a52 | 2804 | *p1 = 0; |
aba5acdf SH |
2805 | if (strcmp(p, "all") == 0) { |
2806 | current_filter.dbs = ALL_DB; | |
2807 | } else if (strcmp(p, "inet") == 0) { | |
351efcde | 2808 | current_filter.dbs |= (1<<TCP_DB)|(1<<DCCP_DB)|(1<<UDP_DB)|(1<<RAW_DB); |
aba5acdf SH |
2809 | } else if (strcmp(p, "udp") == 0) { |
2810 | current_filter.dbs |= (1<<UDP_DB); | |
351efcde SH |
2811 | } else if (strcmp(p, "dccp") == 0) { |
2812 | current_filter.dbs |= (1<<DCCP_DB); | |
aba5acdf SH |
2813 | } else if (strcmp(p, "tcp") == 0) { |
2814 | current_filter.dbs |= (1<<TCP_DB); | |
2815 | } else if (strcmp(p, "raw") == 0) { | |
2816 | current_filter.dbs |= (1<<RAW_DB); | |
2817 | } else if (strcmp(p, "unix") == 0) { | |
2818 | current_filter.dbs |= UNIX_DBM; | |
1a5bad5a | 2819 | } else if (strcasecmp(p, "unix_stream") == 0 || |
aba5acdf SH |
2820 | strcmp(p, "u_str") == 0) { |
2821 | current_filter.dbs |= (1<<UNIX_ST_DB); | |
1a5bad5a | 2822 | } else if (strcasecmp(p, "unix_dgram") == 0 || |
aba5acdf SH |
2823 | strcmp(p, "u_dgr") == 0) { |
2824 | current_filter.dbs |= (1<<UNIX_DG_DB); | |
2825 | } else if (strcmp(p, "packet") == 0) { | |
2826 | current_filter.dbs |= PACKET_DBM; | |
2827 | } else if (strcmp(p, "packet_raw") == 0 || | |
2828 | strcmp(p, "p_raw") == 0) { | |
2829 | current_filter.dbs |= (1<<PACKET_R_DB); | |
2830 | } else if (strcmp(p, "packet_dgram") == 0 || | |
2831 | strcmp(p, "p_dgr") == 0) { | |
2832 | current_filter.dbs |= (1<<PACKET_DG_DB); | |
2833 | } else if (strcmp(p, "netlink") == 0) { | |
2834 | current_filter.dbs |= (1<<NETLINK_DB); | |
2835 | } else { | |
2836 | fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p); | |
2837 | usage(); | |
2838 | } | |
2839 | p = p1 + 1; | |
2840 | } while (p1); | |
2841 | break; | |
2842 | } | |
2843 | case 's': | |
2844 | do_summary = 1; | |
2845 | break; | |
2846 | case 'D': | |
2847 | dump_tcpdiag = optarg; | |
2848 | break; | |
2849 | case 'F': | |
2850 | if (filter_fp) { | |
2851 | fprintf(stderr, "More than one filter file\n"); | |
2852 | exit(-1); | |
2853 | } | |
2854 | if (optarg[0] == '-') | |
2855 | filter_fp = stdin; | |
2856 | else | |
2857 | filter_fp = fopen(optarg, "r"); | |
2858 | if (!filter_fp) { | |
2859 | perror("fopen filter file"); | |
2860 | exit(-1); | |
2861 | } | |
2862 | break; | |
2863 | case 'v': | |
2864 | case 'V': | |
2865 | printf("ss utility, iproute2-ss%s\n", SNAPSHOT); | |
2866 | exit(0); | |
2867 | case 'h': | |
2868 | case '?': | |
7a96e199 | 2869 | help(); |
aba5acdf SH |
2870 | default: |
2871 | usage(); | |
2872 | } | |
2873 | } | |
2874 | ||
2875 | argc -= optind; | |
2876 | argv += optind; | |
2877 | ||
2878 | get_slabstat(&slabstat); | |
2879 | ||
2880 | if (do_summary) { | |
2881 | print_summary(); | |
2882 | if (do_default && argc == 0) | |
2883 | exit(0); | |
2884 | } | |
2885 | ||
2886 | if (do_default) | |
2887 | current_filter.dbs = default_filter.dbs; | |
2888 | ||
2889 | if (preferred_family == AF_UNSPEC) { | |
2890 | if (!(current_filter.dbs&~UNIX_DBM)) | |
2891 | preferred_family = AF_UNIX; | |
2892 | else if (!(current_filter.dbs&~PACKET_DBM)) | |
2893 | preferred_family = AF_PACKET; | |
2894 | else if (!(current_filter.dbs&~(1<<NETLINK_DB))) | |
2895 | preferred_family = AF_NETLINK; | |
2896 | } | |
2897 | ||
2898 | if (preferred_family != AF_UNSPEC) { | |
2899 | int mask2; | |
2900 | if (preferred_family == AF_INET || | |
2901 | preferred_family == AF_INET6) { | |
f70d96a4 | 2902 | mask2= current_filter.dbs; |
aba5acdf SH |
2903 | } else if (preferred_family == AF_PACKET) { |
2904 | mask2 = PACKET_DBM; | |
2905 | } else if (preferred_family == AF_UNIX) { | |
2906 | mask2 = UNIX_DBM; | |
2907 | } else if (preferred_family == AF_NETLINK) { | |
2908 | mask2 = (1<<NETLINK_DB); | |
2909 | } else { | |
2910 | mask2 = 0; | |
2911 | } | |
2912 | ||
2913 | if (do_default) | |
2914 | current_filter.dbs = mask2; | |
2915 | else | |
2916 | current_filter.dbs &= mask2; | |
2917 | current_filter.families = (1<<preferred_family); | |
2918 | } else { | |
2919 | if (!do_default) | |
2920 | current_filter.families = ~0; | |
2921 | else | |
2922 | current_filter.families = default_filter.families; | |
2923 | } | |
2924 | if (current_filter.dbs == 0) { | |
2925 | fprintf(stderr, "ss: no socket tables to show with such filter.\n"); | |
2926 | exit(0); | |
2927 | } | |
2928 | if (current_filter.families == 0) { | |
2929 | fprintf(stderr, "ss: no families to show with such filter.\n"); | |
2930 | exit(0); | |
2931 | } | |
2932 | ||
2933 | if (resolve_services && resolve_hosts && | |
351efcde | 2934 | (current_filter.dbs&(UNIX_DBM|(1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)))) |
aba5acdf SH |
2935 | init_service_resolver(); |
2936 | ||
2937 | /* Now parse filter... */ | |
2938 | if (argc == 0 && filter_fp) { | |
2939 | if (ssfilter_parse(¤t_filter.f, 0, NULL, filter_fp)) | |
2940 | usage(); | |
2941 | } | |
2942 | ||
2943 | while (argc > 0) { | |
2944 | if (strcmp(*argv, "state") == 0) { | |
2945 | NEXT_ARG(); | |
2946 | if (!saw_states) | |
2947 | current_filter.states = 0; | |
2948 | current_filter.states |= scan_state(*argv); | |
2949 | saw_states = 1; | |
2950 | } else if (strcmp(*argv, "exclude") == 0 || | |
2951 | strcmp(*argv, "excl") == 0) { | |
2952 | NEXT_ARG(); | |
2953 | if (!saw_states) | |
2954 | current_filter.states = SS_ALL; | |
2955 | current_filter.states &= ~scan_state(*argv); | |
2956 | saw_states = 1; | |
2957 | } else { | |
2958 | if (ssfilter_parse(¤t_filter.f, argc, argv, filter_fp)) | |
2959 | usage(); | |
2960 | break; | |
2961 | } | |
2962 | argc--; argv++; | |
2963 | } | |
2964 | ||
2965 | if (current_filter.states == 0) { | |
2966 | fprintf(stderr, "ss: no socket states to show with such filter.\n"); | |
2967 | exit(0); | |
2968 | } | |
2969 | ||
2970 | if (dump_tcpdiag) { | |
2971 | FILE *dump_fp = stdout; | |
2972 | if (!(current_filter.dbs & (1<<TCP_DB))) { | |
2973 | fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n"); | |
2974 | exit(0); | |
2975 | } | |
2976 | if (dump_tcpdiag[0] != '-') { | |
2977 | dump_fp = fopen(dump_tcpdiag, "w"); | |
2978 | if (!dump_tcpdiag) { | |
2979 | perror("fopen dump file"); | |
2980 | exit(-1); | |
2981 | } | |
2982 | } | |
351efcde | 2983 | tcp_show_netlink(¤t_filter, dump_fp, TCPDIAG_GETSOCK); |
aba5acdf SH |
2984 | fflush(dump_fp); |
2985 | exit(0); | |
2986 | } | |
2987 | ||
2988 | netid_width = 0; | |
2989 | if (current_filter.dbs&(current_filter.dbs-1)) | |
2990 | netid_width = 5; | |
2991 | ||
2992 | state_width = 0; | |
2993 | if (current_filter.states&(current_filter.states-1)) | |
2994 | state_width = 10; | |
2995 | ||
2996 | screen_width = 80; | |
2997 | if (isatty(STDOUT_FILENO)) { | |
2998 | struct winsize w; | |
2999 | ||
3000 | if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) { | |
3001 | if (w.ws_col > 0) | |
3002 | screen_width = w.ws_col; | |
3003 | } | |
3004 | } | |
3005 | ||
3006 | addrp_width = screen_width; | |
3007 | addrp_width -= netid_width+1; | |
3008 | addrp_width -= state_width+1; | |
3009 | addrp_width -= 14; | |
3010 | ||
3011 | if (addrp_width&1) { | |
3012 | if (netid_width) | |
3013 | netid_width++; | |
3014 | else if (state_width) | |
3015 | state_width++; | |
3016 | } | |
3017 | ||
3018 | addrp_width /= 2; | |
3019 | addrp_width--; | |
3020 | ||
3021 | serv_width = resolve_services ? 7 : 5; | |
3022 | ||
3023 | if (addrp_width < 15+serv_width+1) | |
3024 | addrp_width = 15+serv_width+1; | |
3025 | ||
ae665a52 | 3026 | addr_width = addrp_width - serv_width - 1; |
aba5acdf SH |
3027 | |
3028 | if (netid_width) | |
3029 | printf("%-*s ", netid_width, "Netid"); | |
3030 | if (state_width) | |
3031 | printf("%-*s ", state_width, "State"); | |
3032 | printf("%-6s %-6s ", "Recv-Q", "Send-Q"); | |
3033 | ||
3034 | printf("%*s:%-*s %*s:%-*s\n", | |
3035 | addr_width, "Local Address", serv_width, "Port", | |
3036 | addr_width, "Peer Address", serv_width, "Port"); | |
3037 | ||
aba5acdf SH |
3038 | fflush(stdout); |
3039 | ||
3040 | if (current_filter.dbs & (1<<NETLINK_DB)) | |
3041 | netlink_show(¤t_filter); | |
3042 | if (current_filter.dbs & PACKET_DBM) | |
3043 | packet_show(¤t_filter); | |
3044 | if (current_filter.dbs & UNIX_DBM) | |
3045 | unix_show(¤t_filter); | |
3046 | if (current_filter.dbs & (1<<RAW_DB)) | |
3047 | raw_show(¤t_filter); | |
3048 | if (current_filter.dbs & (1<<UDP_DB)) | |
3049 | udp_show(¤t_filter); | |
3050 | if (current_filter.dbs & (1<<TCP_DB)) | |
351efcde SH |
3051 | tcp_show(¤t_filter, TCPDIAG_GETSOCK); |
3052 | if (current_filter.dbs & (1<<DCCP_DB)) | |
3053 | tcp_show(¤t_filter, DCCPDIAG_GETSOCK); | |
aba5acdf SH |
3054 | return 0; |
3055 | } |