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ipmaddr: Avoid accessing uninitialized data
[mirror_iproute2.git] / misc / ss.c
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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>
aba5acdf
SH		 25#include <dirent.h>
26#include <fnmatch.h>
ab61159a 27#include <getopt.h>
bf4ceee6 28#include <stdbool.h>
6b376ebd 29#include <limits.h>
aba5acdf
SH		 30
31#include "utils.h"
32#include "rt_names.h"
33#include "ll_map.h"
34#include "libnetlink.h"
95ce04bc 35#include "namespace.h"
aba5acdf
SH		 36#include "SNAPSHOT.h"
37
9cb1eccf 38#include <linux/tcp.h>
f6062360 39#include <linux/sock_diag.h>
351efcde 40#include <linux/inet_diag.h>
dfbaa90d 41#include <linux/unix_diag.h>
372c30d2
ND		 42#include <linux/netdevice.h> /* for MAX_ADDR_LEN */
43#include <linux/filter.h>
44#include <linux/packet_diag.h>
ecb928c8 45#include <linux/netlink_diag.h>
f89d46ad 46#include <linux/sctp.h>
aba5acdf 47
8a4025f6 48#define MAGIC_SEQ 123456
49
5fb421d4 50#define DIAG_REQUEST(_req, _r) \
51 struct { \
52 struct nlmsghdr nlh; \
53 _r; \
54 } _req = { \
55 .nlh = { \
56 .nlmsg_type = SOCK_DIAG_BY_FAMILY, \
57 .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\
8a4025f6 58 .nlmsg_seq = MAGIC_SEQ, \
5fb421d4 59 .nlmsg_len = sizeof(_req), \
60 }, \
61 }
62
116ac927
RH		 63#if HAVE_SELINUX
64#include <selinux/selinux.h>
65#else
66/* Stubs for SELinux functions */
67static int is_selinux_enabled(void)
68{
69 return -1;
70}
71
72static int getpidcon(pid_t pid, char **context)
73{
74 *context = NULL;
75 return -1;
76}
77
78static int getfilecon(char *path, char **context)
79{
80 *context = NULL;
81 return -1;
82}
83
84static int security_get_initial_context(char *name, char **context)
85{
86 *context = NULL;
87 return -1;
88}
89#endif
90
acd1e437 91int resolve_hosts;
aba5acdf
SH		 92int resolve_services = 1;
93int preferred_family = AF_UNSPEC;
acd1e437
SH		 94int show_options;
95int show_details;
96int show_users;
97int show_mem;
98int show_tcpinfo;
99int show_bpf;
100int show_proc_ctx;
101int show_sock_ctx;
7a4559f6 102int show_header = 1;
acd1e437 103int follow_events;
f89d46ad 104int sctp_ino;
aba5acdf
SH		 105
106int netid_width;
107int state_width;
aba5acdf
SH		 108int addr_width;
109int serv_width;
aba5acdf
SH		 110
111static const char *TCP_PROTO = "tcp";
f89d46ad 112static const char *SCTP_PROTO = "sctp";
aba5acdf
SH		 113static const char *UDP_PROTO = "udp";
114static const char *RAW_PROTO = "raw";
acd1e437 115static const char *dg_proto;
aba5acdf 116
acd1e437 117enum {
aba5acdf 118 TCP_DB,
351efcde 119 DCCP_DB,
aba5acdf
SH		 120 UDP_DB,
121 RAW_DB,
122 UNIX_DG_DB,
123 UNIX_ST_DB,
30b669d7 124 UNIX_SQ_DB,
aba5acdf
SH		 125 PACKET_DG_DB,
126 PACKET_R_DB,
127 NETLINK_DB,
f89d46ad 128 SCTP_DB,
aba5acdf
SH		 129 MAX_DB
130};
131
132#define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
30b669d7 133#define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB))
aba5acdf 134#define ALL_DB ((1<<MAX_DB)-1)
168d97f9
SH		 135#define INET_L4_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<SCTP_DB))
136#define INET_DBM (INET_L4_DBM | (1<<RAW_DB))
aba5acdf
SH		 137
138enum {
7d105b56
SH		 139 SS_UNKNOWN,
140 SS_ESTABLISHED,
141 SS_SYN_SENT,
142 SS_SYN_RECV,
143 SS_FIN_WAIT1,
144 SS_FIN_WAIT2,
145 SS_TIME_WAIT,
146 SS_CLOSE,
147 SS_CLOSE_WAIT,
148 SS_LAST_ACK,
149 SS_LISTEN,
150 SS_CLOSING,
151 SS_MAX
aba5acdf
SH		 152};
153
f89d46ad
PS		 154enum {
155 SCTP_STATE_CLOSED = 0,
156 SCTP_STATE_COOKIE_WAIT = 1,
157 SCTP_STATE_COOKIE_ECHOED = 2,
158 SCTP_STATE_ESTABLISHED = 3,
159 SCTP_STATE_SHUTDOWN_PENDING = 4,
160 SCTP_STATE_SHUTDOWN_SENT = 5,
161 SCTP_STATE_SHUTDOWN_RECEIVED = 6,
162 SCTP_STATE_SHUTDOWN_ACK_SENT = 7,
163};
164
9db7bf15
VK		 165#define SS_ALL ((1 << SS_MAX) - 1)
166#define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)))
aba5acdf
SH		 167
168#include "ssfilter.h"
169
acd1e437 170struct filter {
aba5acdf
SH		 171 int dbs;
172 int states;
173 int families;
174 struct ssfilter *f;
fb2594c1 175 bool kill;
aba5acdf
SH		 176};
177
9db7bf15
VK		 178static const struct filter default_dbs[MAX_DB] = {
179 [TCP_DB] = {
180 .states = SS_CONN,
181 .families = (1 << AF_INET) | (1 << AF_INET6),
182 },
183 [DCCP_DB] = {
184 .states = SS_CONN,
185 .families = (1 << AF_INET) | (1 << AF_INET6),
186 },
187 [UDP_DB] = {
f42a4574 188 .states = (1 << SS_ESTABLISHED),
9db7bf15
VK		 189 .families = (1 << AF_INET) | (1 << AF_INET6),
190 },
191 [RAW_DB] = {
f42a4574 192 .states = (1 << SS_ESTABLISHED),
9db7bf15
VK		 193 .families = (1 << AF_INET) | (1 << AF_INET6),
194 },
195 [UNIX_DG_DB] = {
196 .states = (1 << SS_CLOSE),
197 .families = (1 << AF_UNIX),
198 },
199 [UNIX_ST_DB] = {
200 .states = SS_CONN,
201 .families = (1 << AF_UNIX),
202 },
203 [UNIX_SQ_DB] = {
204 .states = SS_CONN,
205 .families = (1 << AF_UNIX),
206 },
207 [PACKET_DG_DB] = {
208 .states = (1 << SS_CLOSE),
209 .families = (1 << AF_PACKET),
210 },
211 [PACKET_R_DB] = {
212 .states = (1 << SS_CLOSE),
213 .families = (1 << AF_PACKET),
214 },
215 [NETLINK_DB] = {
216 .states = (1 << SS_CLOSE),
217 .families = (1 << AF_NETLINK),
218 },
f89d46ad
PS		 219 [SCTP_DB] = {
220 .states = SS_CONN,
221 .families = (1 << AF_INET) | (1 << AF_INET6),
222 },
aba5acdf
SH		 223};
224
9db7bf15
VK		 225static const struct filter default_afs[AF_MAX] = {
226 [AF_INET] = {
227 .dbs = INET_DBM,
228 .states = SS_CONN,
229 },
230 [AF_INET6] = {
231 .dbs = INET_DBM,
232 .states = SS_CONN,
233 },
234 [AF_UNIX] = {
235 .dbs = UNIX_DBM,
236 .states = SS_CONN,
237 },
238 [AF_PACKET] = {
239 .dbs = PACKET_DBM,
240 .states = (1 << SS_CLOSE),
241 },
242 [AF_NETLINK] = {
243 .dbs = (1 << NETLINK_DB),
244 .states = (1 << SS_CLOSE),
245 },
246};
247
248static int do_default = 1;
249static struct filter current_filter;
250
251static void filter_db_set(struct filter *f, int db)
252{
253 f->states |= default_dbs[db].states;
9db7bf15
VK		 254 f->dbs |= 1 << db;
255 do_default = 0;
256}
257
258static void filter_af_set(struct filter *f, int af)
259{
1527a17e
VK		 260 f->states |= default_afs[af].states;
261 f->families |= 1 << af;
262 do_default = 0;
263 preferred_family = af;
9db7bf15
VK		 264}
265
266static int filter_af_get(struct filter *f, int af)
267{
268 return f->families & (1 << af);
269}
270
271static void filter_default_dbs(struct filter *f)
272{
273 filter_db_set(f, UDP_DB);
274 filter_db_set(f, DCCP_DB);
275 filter_db_set(f, TCP_DB);
276 filter_db_set(f, RAW_DB);
277 filter_db_set(f, UNIX_ST_DB);
278 filter_db_set(f, UNIX_DG_DB);
279 filter_db_set(f, UNIX_SQ_DB);
280 filter_db_set(f, PACKET_R_DB);
281 filter_db_set(f, PACKET_DG_DB);
282 filter_db_set(f, NETLINK_DB);
f89d46ad 283 filter_db_set(f, SCTP_DB);
9db7bf15
VK		 284}
285
57ff5a10 286static void filter_states_set(struct filter *f, int states)
9db7bf15 287{
57ff5a10 288 if (states)
9d320e1e 289 f->states = states;
57ff5a10 290}
9db7bf15 291
57ff5a10
VK		 292static void filter_merge_defaults(struct filter *f)
293{
294 int db;
295 int af;
9db7bf15 296
57ff5a10
VK		 297 for (db = 0; db < MAX_DB; db++) {
298 if (!(f->dbs & (1 << db)))
299 continue;
9db7bf15 300
57ff5a10
VK		 301 if (!(default_dbs[db].families & f->families))
302 f->families |= default_dbs[db].families;
303 }
304 for (af = 0; af < AF_MAX; af++) {
305 if (!(f->families & (1 << af)))
306 continue;
307
308 if (!(default_afs[af].dbs & f->dbs))
309 f->dbs |= default_afs[af].dbs;
310 }
9db7bf15 311}
aba5acdf 312
ab01dbbb 313static FILE *generic_proc_open(const char *env, const char *name)
aba5acdf 314{
ab01dbbb 315 const char *p = getenv(env);
aba5acdf 316 char store[128];
ab01dbbb 317
aba5acdf
SH		 318 if (!p) {
319 p = getenv("PROC_ROOT") ? : "/proc";
320 snprintf(store, sizeof(store)-1, "%s/%s", p, name);
321 p = store;
322 }
ab01dbbb
SH		 323
324 return fopen(p, "r");
aba5acdf 325}
0cb74a86
PS		 326#define net_tcp_open() generic_proc_open("PROC_NET_TCP", "net/tcp")
327#define net_tcp6_open() generic_proc_open("PROC_NET_TCP6", "net/tcp6")
328#define net_udp_open() generic_proc_open("PROC_NET_UDP", "net/udp")
329#define net_udp6_open() generic_proc_open("PROC_NET_UDP6", "net/udp6")
330#define net_raw_open() generic_proc_open("PROC_NET_RAW", "net/raw")
331#define net_raw6_open() generic_proc_open("PROC_NET_RAW6", "net/raw6")
332#define net_unix_open() generic_proc_open("PROC_NET_UNIX", "net/unix")
333#define net_packet_open() generic_proc_open("PROC_NET_PACKET", \
334 "net/packet")
335#define net_netlink_open() generic_proc_open("PROC_NET_NETLINK", \
336 "net/netlink")
337#define slabinfo_open() generic_proc_open("PROC_SLABINFO", "slabinfo")
338#define net_sockstat_open() generic_proc_open("PROC_NET_SOCKSTAT", \
339 "net/sockstat")
340#define net_sockstat6_open() generic_proc_open("PROC_NET_SOCKSTAT6", \
341 "net/sockstat6")
342#define net_snmp_open() generic_proc_open("PROC_NET_SNMP", "net/snmp")
343#define ephemeral_ports_open() generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", \
344 "sys/net/ipv4/ip_local_port_range")
aba5acdf 345
fbc0f876
SF		 346struct user_ent {
347 struct user_ent *next;
348 unsigned int ino;
349 int pid;
350 int fd;
116ac927
RH		 351 char *process;
352 char *process_ctx;
353 char *socket_ctx;
fbc0f876
SF		 354};
355
356#define USER_ENT_HASH_SIZE 256
357struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE];
358
359static int user_ent_hashfn(unsigned int ino)
aba5acdf 360{
fbc0f876 361 int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino;
aba5acdf 362
fbc0f876
SF		 363 return val & (USER_ENT_HASH_SIZE - 1);
364}
365
116ac927
RH		 366static void user_ent_add(unsigned int ino, char *process,
367 int pid, int fd,
368 char *proc_ctx,
369 char *sock_ctx)
fbc0f876
SF		 370{
371 struct user_ent *p, **pp;
aba5acdf 372
116ac927
RH		 373 p = malloc(sizeof(struct user_ent));
374 if (!p) {
375 fprintf(stderr, "ss: failed to malloc buffer\n");
fbc0f876 376 abort();
116ac927 377 }
fbc0f876
SF		 378 p->next = NULL;
379 p->ino = ino;
380 p->pid = pid;
381 p->fd = fd;
116ac927
RH		 382 p->process = strdup(process);
383 p->process_ctx = strdup(proc_ctx);
384 p->socket_ctx = strdup(sock_ctx);
fbc0f876
SF		 385
386 pp = &user_ent_hash[user_ent_hashfn(ino)];
387 p->next = *pp;
388 *pp = p;
389}
aba5acdf 390
116ac927
RH		 391static void user_ent_destroy(void)
392{
393 struct user_ent *p, *p_next;
394 int cnt = 0;
395
396 while (cnt != USER_ENT_HASH_SIZE) {
397 p = user_ent_hash[cnt];
398 while (p) {
399 free(p->process);
400 free(p->process_ctx);
401 free(p->socket_ctx);
402 p_next = p->next;
403 free(p);
404 p = p_next;
405 }
406 cnt++;
407 }
408}
409
fbc0f876
SF		 410static void user_ent_hash_build(void)
411{
412 const char *root = getenv("PROC_ROOT") ? : "/proc/";
413 struct dirent *d;
414 char name[1024];
415 int nameoff;
416 DIR *dir;
116ac927
RH		 417 char *pid_context;
418 char *sock_context;
419 const char *no_ctx = "unavailable";
b25bad2f 420 static int user_ent_hash_build_init;
116ac927
RH		 421
422 /* If show_users & show_proc_ctx set only do this once */
423 if (user_ent_hash_build_init != 0)
424 return;
425
426 user_ent_hash_build_init = 1;
fbc0f876 427
0ee9052f 428 strncpy(name, root, sizeof(name)-1);
429 name[sizeof(name)-1] = 0;
430
fbc0f876 431 if (strlen(name) == 0 || name[strlen(name)-1] != '/')
aba5acdf 432 strcat(name, "/");
fbc0f876 433
aba5acdf 434 nameoff = strlen(name);
fbc0f876
SF		 435
436 dir = opendir(name);
437 if (!dir)
438 return;
aba5acdf
SH		 439
440 while ((d = readdir(dir)) != NULL) {
aba5acdf 441 struct dirent *d1;
aba5acdf 442 char process[16];
116ac927 443 char *p;
fbc0f876
SF		 444 int pid, pos;
445 DIR *dir1;
446 char crap;
aba5acdf
SH		 447
448 if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1)
449 continue;
450
116ac927
RH		 451 if (getpidcon(pid, &pid_context) != 0)
452 pid_context = strdup(no_ctx);
453
0ee9052f 454 snprintf(name + nameoff, sizeof(name) - nameoff, "%d/fd/", pid);
aba5acdf 455 pos = strlen(name);
a02371fb
PS		 456 if ((dir1 = opendir(name)) == NULL) {
457 free(pid_context);
aba5acdf 458 continue;
a02371fb 459 }
aba5acdf 460
fbc0f876 461 process[0] = '\0';
116ac927 462 p = process;
aba5acdf
SH		 463
464 while ((d1 = readdir(dir1)) != NULL) {
fbc0f876
SF		 465 const char *pattern = "socket:[";
466 unsigned int ino;
aba5acdf 467 char lnk[64];
18445b3e 468 int fd;
788731b3 469 ssize_t link_len;
116ac927 470 char tmp[1024];
aba5acdf
SH		 471
472 if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1)
473 continue;
474
0ee9052f 475 snprintf(name+pos, sizeof(name) - pos, "%d", fd);
788731b3
TJ		 476
477 link_len = readlink(name, lnk, sizeof(lnk)-1);
478 if (link_len == -1)
479 continue;
480 lnk[link_len] = '\0';
481
482 if (strncmp(lnk, pattern, strlen(pattern)))
aba5acdf
SH		 483 continue;
484
fbc0f876 485 sscanf(lnk, "socket:[%u]", &ino);
aba5acdf 486
116ac927
RH		 487 snprintf(tmp, sizeof(tmp), "%s/%d/fd/%s",
488 root, pid, d1->d_name);
489
490 if (getfilecon(tmp, &sock_context) <= 0)
491 sock_context = strdup(no_ctx);
492
493 if (*p == '\0') {
aba5acdf 494 FILE *fp;
fbc0f876 495
116ac927
RH		 496 snprintf(tmp, sizeof(tmp), "%s/%d/stat",
497 root, pid);
aba5acdf 498 if ((fp = fopen(tmp, "r")) != NULL) {
d572ed4d
PS		 499 if (fscanf(fp, "%*d (%[^)])", p) < 1)
500 ; /* ignore */
aba5acdf
SH		 501 fclose(fp);
502 }
503 }
116ac927
RH		 504 user_ent_add(ino, p, pid, fd,
505 pid_context, sock_context);
506 free(sock_context);
aba5acdf 507 }
116ac927 508 free(pid_context);
aba5acdf
SH		 509 closedir(dir1);
510 }
511 closedir(dir);
fbc0f876
SF		 512}
513
116ac927
RH		 514enum entry_types {
515 USERS,
516 PROC_CTX,
517 PROC_SOCK_CTX
518};
519
520#define ENTRY_BUF_SIZE 512
acd1e437 521static int find_entry(unsigned int ino, char **buf, int type)
fbc0f876
SF		 522{
523 struct user_ent *p;
524 int cnt = 0;
525 char *ptr;
532ca40a 526 char *new_buf;
116ac927
RH		 527 int len, new_buf_len;
528 int buf_used = 0;
529 int buf_len = 0;
fbc0f876
SF		 530
531 if (!ino)
532 return 0;
533
534 p = user_ent_hash[user_ent_hashfn(ino)];
116ac927 535 ptr = *buf = NULL;
fbc0f876
SF		 536 while (p) {
537 if (p->ino != ino)
538 goto next;
539
116ac927
RH		 540 while (1) {
541 ptr = *buf + buf_used;
542 switch (type) {
543 case USERS:
544 len = snprintf(ptr, buf_len - buf_used,
545 "(\"%s\",pid=%d,fd=%d),",
546 p->process, p->pid, p->fd);
547 break;
548 case PROC_CTX:
549 len = snprintf(ptr, buf_len - buf_used,
550 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),",
551 p->process, p->pid,
552 p->process_ctx, p->fd);
553 break;
554 case PROC_SOCK_CTX:
555 len = snprintf(ptr, buf_len - buf_used,
556 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),",
557 p->process, p->pid,
558 p->process_ctx, p->fd,
559 p->socket_ctx);
560 break;
561 default:
562 fprintf(stderr, "ss: invalid type: %d\n", type);
563 abort();
564 }
fbc0f876 565
116ac927
RH		 566 if (len < 0 || len >= buf_len - buf_used) {
567 new_buf_len = buf_len + ENTRY_BUF_SIZE;
532ca40a 568 new_buf = realloc(*buf, new_buf_len);
116ac927
RH		 569 if (!new_buf) {
570 fprintf(stderr, "ss: failed to malloc buffer\n");
571 abort();
572 }
532ca40a 573 *buf = new_buf;
116ac927
RH		 574 buf_len = new_buf_len;
575 continue;
576 } else {
577 buf_used += len;
578 break;
579 }
580 }
fbc0f876 581 cnt++;
116ac927 582next:
fbc0f876
SF		 583 p = p->next;
584 }
116ac927
RH		 585 if (buf_used) {
586 ptr = *buf + buf_used;
fbc0f876 587 ptr[-1] = '\0';
116ac927 588 }
aba5acdf
SH		 589 return cnt;
590}
591
aba5acdf
SH		 592/* Get stats from slab */
593
acd1e437 594struct slabstat {
aba5acdf
SH		 595 int socks;
596 int tcp_ports;
597 int tcp_tws;
598 int tcp_syns;
599 int skbs;
600};
601
a221d621 602static struct slabstat slabstat;
aba5acdf 603
d1f28cf1 604static int get_slabstat(struct slabstat *s)
aba5acdf
SH		 605{
606 char buf[256];
607 FILE *fp;
608 int cnt;
a221d621 609 static int slabstat_valid;
b3535dd6
PS		 610 static const char * const slabstat_ids[] = {
611 "sock",
612 "tcp_bind_bucket",
613 "tcp_tw_bucket",
614 "tcp_open_request",
615 "skbuff_head_cache",
616 };
a221d621
BL		 617
618 if (slabstat_valid)
619 return 0;
aba5acdf
SH		 620
621 memset(s, 0, sizeof(*s));
622
ab01dbbb
SH		 623 fp = slabinfo_open();
624 if (!fp)
aba5acdf
SH		 625 return -1;
626
627 cnt = sizeof(*s)/sizeof(int);
628
d572ed4d
PS		 629 if (!fgets(buf, sizeof(buf), fp)) {
630 fclose(fp);
631 return -1;
632 }
acd1e437 633 while (fgets(buf, sizeof(buf), fp) != NULL) {
aba5acdf 634 int i;
acd1e437 635
62000e51 636 for (i = 0; i < ARRAY_SIZE(slabstat_ids); i++) {
aba5acdf
SH		 637 if (memcmp(buf, slabstat_ids[i], strlen(slabstat_ids[i])) == 0) {
638 sscanf(buf, "%*s%d", ((int *)s) + i);
639 cnt--;
640 break;
641 }
642 }
643 if (cnt <= 0)
644 break;
645 }
646
a221d621
BL		 647 slabstat_valid = 1;
648
aba5acdf
SH		 649 fclose(fp);
650 return 0;
651}
652
2e7e805d 653static unsigned long long cookie_sk_get(const uint32_t *cookie)
f1b39e1b 654{
2e7e805d 655 return (((unsigned long long)cookie[1] << 31) << 1) | cookie[0];
f1b39e1b
VK		 656}
657
f89d46ad
PS		 658static const char *sctp_sstate_name[] = {
659 [SCTP_STATE_CLOSED] = "CLOSED",
660 [SCTP_STATE_COOKIE_WAIT] = "COOKIE_WAIT",
661 [SCTP_STATE_COOKIE_ECHOED] = "COOKIE_ECHOED",
662 [SCTP_STATE_ESTABLISHED] = "ESTAB",
663 [SCTP_STATE_SHUTDOWN_PENDING] = "SHUTDOWN_PENDING",
664 [SCTP_STATE_SHUTDOWN_SENT] = "SHUTDOWN_SENT",
665 [SCTP_STATE_SHUTDOWN_RECEIVED] = "SHUTDOWN_RECEIVED",
666 [SCTP_STATE_SHUTDOWN_ACK_SENT] = "ACK_SENT",
667};
668
acd1e437 669struct sockstat {
ec4d0d8a
VK		 670 struct sockstat *next;
671 unsigned int type;
89f634f9 672 uint16_t prot;
41fe6c34 673 uint16_t raw_prot;
8250bc9f
VK		 674 inet_prefix local;
675 inet_prefix remote;
676 int lport;
677 int rport;
678 int state;
679 int rq, wq;
acd1e437
SH		 680 unsigned int ino;
681 unsigned int uid;
8250bc9f
VK		 682 int refcnt;
683 unsigned int iface;
684 unsigned long long sk;
99bb68ff
VK		 685 char *name;
686 char *peer_name;
ec75249b 687 __u32 mark;
055840f2
VK		 688};
689
acd1e437 690struct dctcpstat {
055840f2
VK		 691 unsigned int ce_state;
692 unsigned int alpha;
693 unsigned int ab_ecn;
694 unsigned int ab_tot;
695 bool enabled;
696};
697
acd1e437 698struct tcpstat {
055840f2 699 struct sockstat ss;
8250bc9f
VK		 700 int timer;
701 int timeout;
702 int probes;
d2055ea5 703 char cong_alg[16];
8250bc9f 704 double rto, ato, rtt, rttvar;
d1f338b3 705 int qack, ssthresh, backoff;
8250bc9f
VK		 706 double send_bps;
707 int snd_wscale;
708 int rcv_wscale;
709 int mss;
38e6dbc4
ED		 710 int rcv_mss;
711 int advmss;
d1f338b3 712 unsigned int cwnd;
8250bc9f
VK		 713 unsigned int lastsnd;
714 unsigned int lastrcv;
715 unsigned int lastack;
716 double pacing_rate;
717 double pacing_rate_max;
2f579872 718 double delivery_rate;
1a4dda71
ED		 719 unsigned long long bytes_acked;
720 unsigned long long bytes_received;
ecb435ea
CG		 721 unsigned int segs_out;
722 unsigned int segs_in;
414aeec9
MKL		 723 unsigned int data_segs_out;
724 unsigned int data_segs_in;
8250bc9f
VK		 725 unsigned int unacked;
726 unsigned int retrans;
727 unsigned int retrans_total;
728 unsigned int lost;
729 unsigned int sacked;
730 unsigned int fackets;
731 unsigned int reordering;
9e99e495 732 unsigned int not_sent;
8250bc9f 733 double rcv_rtt;
9e99e495 734 double min_rtt;
8250bc9f 735 int rcv_space;
b6c7fc61
YC		 736 unsigned long long busy_time;
737 unsigned long long rwnd_limited;
738 unsigned long long sndbuf_limited;
8250bc9f
VK		 739 bool has_ts_opt;
740 bool has_sack_opt;
741 bool has_ecn_opt;
742 bool has_ecnseen_opt;
743 bool has_fastopen_opt;
744 bool has_wscale_opt;
2f579872 745 bool app_limited;
8250bc9f 746 struct dctcpstat *dctcp;
2f0f9aef 747 struct tcp_bbr_info *bbr_info;
aba5acdf
SH		 748};
749
f89d46ad
PS		 750/* SCTP assocs share the same inode number with their parent endpoint. So if we
751 * have seen the inode number before, it must be an assoc instead of the next
752 * endpoint. */
753static bool is_sctp_assoc(struct sockstat *s, const char *sock_name)
754{
755 if (strcmp(sock_name, "sctp"))
756 return false;
757 if (!sctp_ino || sctp_ino != s->ino)
758 return false;
759 return true;
760}
761
be7e4d20
PS		 762static const char *unix_netid_name(int type)
763{
764 switch (type) {
765 case SOCK_STREAM:
766 return "u_str";
767 case SOCK_SEQPACKET:
768 return "u_seq";
769 case SOCK_DGRAM:
770 default:
771 return "u_dgr";
772 }
773}
774
775static const char *proto_name(int protocol)
2d791bc8 776{
be7e4d20
PS		 777 switch (protocol) {
778 case 0:
779 return "raw";
780 case IPPROTO_UDP:
781 return "udp";
782 case IPPROTO_TCP:
783 return "tcp";
784 case IPPROTO_SCTP:
785 return "sctp";
786 case IPPROTO_DCCP:
787 return "dccp";
788 }
789
790 return "???";
791}
792
793static void sock_state_print(struct sockstat *s)
794{
795 const char *sock_name;
1882c0db
PS		 796 static const char * const sstate_name[] = {
797 "UNKNOWN",
798 [SS_ESTABLISHED] = "ESTAB",
799 [SS_SYN_SENT] = "SYN-SENT",
800 [SS_SYN_RECV] = "SYN-RECV",
801 [SS_FIN_WAIT1] = "FIN-WAIT-1",
802 [SS_FIN_WAIT2] = "FIN-WAIT-2",
803 [SS_TIME_WAIT] = "TIME-WAIT",
804 [SS_CLOSE] = "UNCONN",
805 [SS_CLOSE_WAIT] = "CLOSE-WAIT",
806 [SS_LAST_ACK] = "LAST-ACK",
807 [SS_LISTEN] = "LISTEN",
808 [SS_CLOSING] = "CLOSING",
809 };
be7e4d20
PS		 810
811 switch (s->local.family) {
812 case AF_UNIX:
813 sock_name = unix_netid_name(s->type);
814 break;
815 case AF_INET:
816 case AF_INET6:
817 sock_name = proto_name(s->type);
818 break;
819 case AF_PACKET:
820 sock_name = s->type == SOCK_RAW ? "p_raw" : "p_dgr";
821 break;
822 case AF_NETLINK:
823 sock_name = "nl";
824 break;
825 default:
826 sock_name = "unknown";
827 }
828
2d791bc8 829 if (netid_width)
f89d46ad
PS		 830 printf("%-*s ", netid_width,
831 is_sctp_assoc(s, sock_name) ? "" : sock_name);
832 if (state_width) {
833 if (is_sctp_assoc(s, sock_name))
834 printf("`- %-*s ", state_width - 3,
835 sctp_sstate_name[s->state]);
836 else
837 printf("%-*s ", state_width, sstate_name[s->state]);
838 }
2d791bc8
VK		 839
840 printf("%-6d %-6d ", s->rq, s->wq);
841}
842
f1b39e1b
VK		 843static void sock_details_print(struct sockstat *s)
844{
845 if (s->uid)
846 printf(" uid:%u", s->uid);
847
848 printf(" ino:%u", s->ino);
849 printf(" sk:%llx", s->sk);
ec75249b
LC		 850
851 if (s->mark)
852 printf(" fwmark:0x%x", s->mark);
f1b39e1b
VK		 853}
854
b217df10
VK		 855static void sock_addr_print_width(int addr_len, const char *addr, char *delim,
856 int port_len, const char *port, const char *ifname)
857{
858 if (ifname) {
859 printf("%*s%%%s%s%-*s ", addr_len, addr, ifname, delim,
860 port_len, port);
acd1e437 861 } else {
b217df10
VK		 862 printf("%*s%s%-*s ", addr_len, addr, delim, port_len, port);
863 }
864}
865
866static void sock_addr_print(const char *addr, char *delim, const char *port,
867 const char *ifname)
868{
869 sock_addr_print_width(addr_width, addr, delim, serv_width, port, ifname);
870}
871
d1f28cf1 872static const char *print_ms_timer(int timeout)
aba5acdf
SH		 873{
874 static char buf[64];
875 int secs, msecs, minutes;
acd1e437 876
aba5acdf
SH		 877 if (timeout < 0)
878 timeout = 0;
879 secs = timeout/1000;
880 minutes = secs/60;
881 secs = secs%60;
882 msecs = timeout%1000;
883 buf[0] = 0;
884 if (minutes) {
885 msecs = 0;
886 snprintf(buf, sizeof(buf)-16, "%dmin", minutes);
887 if (minutes > 9)
888 secs = 0;
889 }
890 if (secs) {
891 if (secs > 9)
892 msecs = 0;
893 sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec");
894 }
895 if (msecs)
896 sprintf(buf+strlen(buf), "%03dms", msecs);
897 return buf;
e7113c61 898}
aba5acdf 899
22588a0e 900struct scache {
aba5acdf
SH		 901 struct scache *next;
902 int port;
903 char *name;
904 const char *proto;
905};
906
907struct scache *rlist;
908
d1f28cf1 909static void init_service_resolver(void)
aba5acdf
SH		 910{
911 char buf[128];
912 FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
596307ea
PS		 913
914 if (!fp)
915 return;
916
917 if (!fgets(buf, sizeof(buf), fp)) {
2bcc3c16 918 pclose(fp);
596307ea
PS		 919 return;
920 }
921 while (fgets(buf, sizeof(buf), fp) != NULL) {
922 unsigned int progn, port;
923 char proto[128], prog[128] = "rpc.";
924 struct scache *c;
925
926 if (sscanf(buf, "%u %*d %s %u %s",
acd1e437 927 &progn, proto, &port, prog+4) != 4)
596307ea
PS		 928 continue;
929
930 if (!(c = malloc(sizeof(*c))))
931 continue;
932
933 c->port = port;
934 c->name = strdup(prog);
935 if (strcmp(proto, TCP_PROTO) == 0)
936 c->proto = TCP_PROTO;
937 else if (strcmp(proto, UDP_PROTO) == 0)
938 c->proto = UDP_PROTO;
f89d46ad
PS		 939 else if (strcmp(proto, SCTP_PROTO) == 0)
940 c->proto = SCTP_PROTO;
596307ea
PS		 941 else
942 c->proto = NULL;
943 c->next = rlist;
944 rlist = c;
aba5acdf 945 }
596307ea 946 pclose(fp);
aba5acdf
SH		 947}
948
ab61159a
SH		 949/* Even do not try default linux ephemeral port ranges:
950 * default /etc/services contains so much of useless crap
951 * wouldbe "allocated" to this area that resolution
952 * is really harmful. I shrug each time when seeing
953 * "socks" or "cfinger" in dumps.
954 */
955static int is_ephemeral(int port)
956{
acd1e437 957 static int min = 0, max;
c29d3792
PS		 958
959 if (!min) {
ab01dbbb 960 FILE *f = ephemeral_ports_open();
acd1e437 961
c29d3792
PS		 962 if (!f || fscanf(f, "%d %d", &min, &max) < 2) {
963 min = 1024;
964 max = 4999;
ab61159a 965 }
c29d3792
PS		 966 if (f)
967 fclose(f);
ab61159a 968 }
c29d3792 969 return port >= min && port <= max;
ab61159a
SH		 970}
971
972
d1f28cf1 973static const char *__resolve_service(int port)
aba5acdf
SH		 974{
975 struct scache *c;
976
977 for (c = rlist; c; c = c->next) {
978 if (c->port == port && c->proto == dg_proto)
979 return c->name;
980 }
981
ab61159a 982 if (!is_ephemeral(port)) {
aba5acdf
SH		 983 static int notfirst;
984 struct servent *se;
acd1e437 985
aba5acdf
SH		 986 if (!notfirst) {
987 setservent(1);
988 notfirst = 1;
ae665a52 989 }
aba5acdf
SH		 990 se = getservbyport(htons(port), dg_proto);
991 if (se)
992 return se->s_name;
993 }
994
995 return NULL;
996}
997
22588a0e
ED		 998#define SCACHE_BUCKETS 1024
999static struct scache *cache_htab[SCACHE_BUCKETS];
aba5acdf 1000
d1f28cf1 1001static const char *resolve_service(int port)
aba5acdf
SH		 1002{
1003 static char buf[128];
22588a0e
ED		 1004 struct scache *c;
1005 const char *res;
1006 int hash;
aba5acdf
SH		 1007
1008 if (port == 0) {
1009 buf[0] = '*';
1010 buf[1] = 0;
1011 return buf;
1012 }
1013
22588a0e
ED		 1014 if (!resolve_services)
1015 goto do_numeric;
aba5acdf 1016
22588a0e
ED		 1017 if (dg_proto == RAW_PROTO)
1018 return inet_proto_n2a(port, buf, sizeof(buf));
1019
1020
1021 hash = (port^(((unsigned long)dg_proto)>>2)) % SCACHE_BUCKETS;
1022
1023 for (c = cache_htab[hash]; c; c = c->next) {
1024 if (c->port == port && c->proto == dg_proto)
1025 goto do_cache;
aba5acdf
SH		 1026 }
1027
22588a0e
ED		 1028 c = malloc(sizeof(*c));
1029 if (!c)
1030 goto do_numeric;
1031 res = __resolve_service(port);
1032 c->port = port;
1033 c->name = res ? strdup(res) : NULL;
1034 c->proto = dg_proto;
1035 c->next = cache_htab[hash];
1036 cache_htab[hash] = c;
1037
1038do_cache:
1039 if (c->name)
1040 return c->name;
1041
1042do_numeric:
aba5acdf
SH		 1043 sprintf(buf, "%u", port);
1044 return buf;
1045}
1046
b217df10 1047static void inet_addr_print(const inet_prefix *a, int port, unsigned int ifindex)
aba5acdf
SH		 1048{
1049 char buf[1024];
1050 const char *ap = buf;
b217df10
VK		 1051 int est_len = addr_width;
1052 const char *ifname = NULL;
aba5acdf
SH		 1053
1054 if (a->family == AF_INET) {
1055 if (a->data[0] == 0) {
1056 buf[0] = '*';
1057 buf[1] = 0;
1058 } else {
a418e451 1059 ap = format_host(AF_INET, 4, a->data);
aba5acdf
SH		 1060 }
1061 } else {
aba9c23a
SH		 1062 if (!memcmp(a->data, &in6addr_any, sizeof(in6addr_any))) {
1063 buf[0] = '*';
1064 buf[1] = 0;
1065 } else {
1066 ap = format_host(a->family, 16, a->data);
1067
1068 /* Numeric IPv6 addresses should be bracketed */
1069 if (strchr(ap, ':')) {
1070 snprintf(buf, sizeof(buf),
1071 "[%s]", ap);
1072 ap = buf;
1073 }
1074
1075 est_len = strlen(ap);
1076 if (est_len <= addr_width)
1077 est_len = addr_width;
1078 else
1079 est_len = addr_width + ((est_len-addr_width+3)/4)*4;
1080 }
aba5acdf 1081 }
b217df10 1082
7c8a3cfb 1083 if (ifindex) {
b217df10
VK		 1084 ifname = ll_index_to_name(ifindex);
1085 est_len -= strlen(ifname) + 1; /* +1 for percent char */
4fcfb6bc
MS		 1086 if (est_len < 0)
1087 est_len = 0;
b217df10 1088 }
7c8a3cfb 1089
b217df10
VK		 1090 sock_addr_print_width(est_len, ap, ":", serv_width, resolve_service(port),
1091 ifname);
aba5acdf
SH		 1092}
1093
acd1e437 1094struct aafilter {
aba5acdf
SH		 1095 inet_prefix addr;
1096 int port;
2d293212 1097 unsigned int iface;
ec75249b
LC		 1098 __u32 mark;
1099 __u32 mask;
aba5acdf
SH		 1100 struct aafilter *next;
1101};
1102
d1f28cf1
SH		 1103static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p,
1104 int plen)
aba5acdf
SH		 1105{
1106 if (!inet_addr_match(a, p, plen))
1107 return 0;
7d105b56 1108
aba5acdf
SH		 1109 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1110 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1111 * sockets. Fair? */
1112 if (p->family == AF_INET && a->family == AF_INET6) {
1113 if (a->data[0] == 0 && a->data[1] == 0 &&
1114 a->data[2] == htonl(0xffff)) {
1115 inet_prefix tmp = *a;
acd1e437 1116
aba5acdf
SH		 1117 tmp.data[0] = a->data[3];
1118 return inet_addr_match(&tmp, p, plen);
1119 }
1120 }
1121 return 1;
1122}
1123
d1f28cf1 1124static int unix_match(const inet_prefix *a, const inet_prefix *p)
aba5acdf 1125{
99bb68ff 1126 char *addr, *pattern;
acd1e437 1127
99bb68ff
VK		 1128 memcpy(&addr, a->data, sizeof(addr));
1129 memcpy(&pattern, p->data, sizeof(pattern));
aba5acdf
SH		 1130 if (pattern == NULL)
1131 return 1;
1132 if (addr == NULL)
1133 addr = "";
1134 return !fnmatch(pattern, addr, 0);
1135}
1136
055840f2 1137static int run_ssfilter(struct ssfilter *f, struct sockstat *s)
aba5acdf
SH		 1138{
1139 switch (f->type) {
1140 case SSF_S_AUTO:
1141 {
aba5acdf 1142 if (s->local.family == AF_UNIX) {
99bb68ff 1143 char *p;
acd1e437 1144
99bb68ff 1145 memcpy(&p, s->local.data, sizeof(p));
aba5acdf 1146 return p == NULL || (p[0] == '@' && strlen(p) == 6 &&
ae665a52 1147 strspn(p+1, "0123456789abcdef") == 5);
aba5acdf
SH		 1148 }
1149 if (s->local.family == AF_PACKET)
bbd303d1 1150 return s->lport == 0 && s->local.data[0] == 0;
aba5acdf
SH		 1151 if (s->local.family == AF_NETLINK)
1152 return s->lport < 0;
1153
c29d3792 1154 return is_ephemeral(s->lport);
aba5acdf
SH		 1155 }
1156 case SSF_DCOND:
1157 {
acd1e437
SH		 1158 struct aafilter *a = (void *)f->pred;
1159
aba5acdf
SH		 1160 if (a->addr.family == AF_UNIX)
1161 return unix_match(&s->remote, &a->addr);
1162 if (a->port != -1 && a->port != s->rport)
1163 return 0;
1164 if (a->addr.bitlen) {
1165 do {
1166 if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen))
1167 return 1;
1168 } while ((a = a->next) != NULL);
1169 return 0;
1170 }
1171 return 1;
1172 }
1173 case SSF_SCOND:
1174 {
acd1e437
SH		 1175 struct aafilter *a = (void *)f->pred;
1176
aba5acdf
SH		 1177 if (a->addr.family == AF_UNIX)
1178 return unix_match(&s->local, &a->addr);
1179 if (a->port != -1 && a->port != s->lport)
1180 return 0;
1181 if (a->addr.bitlen) {
1182 do {
1183 if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen))
1184 return 1;
ae665a52 1185 } while ((a = a->next) != NULL);
aba5acdf
SH		 1186 return 0;
1187 }
1188 return 1;
1189 }
1190 case SSF_D_GE:
1191 {
acd1e437
SH		 1192 struct aafilter *a = (void *)f->pred;
1193
aba5acdf
SH		 1194 return s->rport >= a->port;
1195 }
1196 case SSF_D_LE:
1197 {
acd1e437
SH		 1198 struct aafilter *a = (void *)f->pred;
1199
aba5acdf
SH		 1200 return s->rport <= a->port;
1201 }
1202 case SSF_S_GE:
1203 {
acd1e437
SH		 1204 struct aafilter *a = (void *)f->pred;
1205
aba5acdf
SH		 1206 return s->lport >= a->port;
1207 }
1208 case SSF_S_LE:
1209 {
acd1e437
SH		 1210 struct aafilter *a = (void *)f->pred;
1211
aba5acdf
SH		 1212 return s->lport <= a->port;
1213 }
2d293212
DA		 1214 case SSF_DEVCOND:
1215 {
1216 struct aafilter *a = (void *)f->pred;
aba5acdf 1217
2d293212 1218 return s->iface == a->iface;
ec75249b
LC		 1219 }
1220 case SSF_MARKMASK:
1221 {
1222 struct aafilter *a = (void *)f->pred;
1223
1224 return (s->mark & a->mask) == a->mark;
2d293212 1225 }
aba5acdf
SH		 1226 /* Yup. It is recursion. Sorry. */
1227 case SSF_AND:
1228 return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s);
1229 case SSF_OR:
1230 return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s);
1231 case SSF_NOT:
1232 return !run_ssfilter(f->pred, s);
1233 default:
1234 abort();
1235 }
1236}
1237
ae665a52 1238/* Relocate external jumps by reloc. */
b4b0b7d5 1239static void ssfilter_patch(char *a, int len, int reloc)
aba5acdf
SH		 1240{
1241 while (len > 0) {
acd1e437
SH		 1242 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)a;
1243
aba5acdf
SH		 1244 if (op->no == len+4)
1245 op->no += reloc;
1246 len -= op->yes;
1247 a += op->yes;
1248 }
1249 if (len < 0)
1250 abort();
1251}
1252
b4b0b7d5 1253static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
aba5acdf
SH		 1254{
1255 switch (f->type) {
1256 case SSF_S_AUTO:
1257 {
acd1e437
SH		 1258 if (!(*bytecode = malloc(4))) abort();
1259 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
df39de8d 1260 return 4;
aba5acdf
SH		 1261 }
1262 case SSF_DCOND:
1263 case SSF_SCOND:
1264 {
acd1e437 1265 struct aafilter *a = (void *)f->pred;
aba5acdf
SH		 1266 struct aafilter *b;
1267 char *ptr;
351efcde 1268 int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND);
aba5acdf
SH		 1269 int len = 0;
1270
acd1e437 1271 for (b = a; b; b = b->next) {
351efcde 1272 len += 4 + sizeof(struct inet_diag_hostcond);
aba5acdf
SH		 1273 if (a->addr.family == AF_INET6)
1274 len += 16;
1275 else
1276 len += 4;
1277 if (b->next)
1278 len += 4;
1279 }
1280 if (!(ptr = malloc(len))) abort();
1281 *bytecode = ptr;
acd1e437 1282 for (b = a; b; b = b->next) {
351efcde 1283 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr;
aba5acdf 1284 int alen = (a->addr.family == AF_INET6 ? 16 : 4);
351efcde 1285 int oplen = alen + 4 + sizeof(struct inet_diag_hostcond);
acd1e437 1286 struct inet_diag_hostcond *cond = (struct inet_diag_hostcond *)(ptr+4);
aba5acdf 1287
351efcde 1288 *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 };
aba5acdf
SH		 1289 cond->family = a->addr.family;
1290 cond->port = a->port;
1291 cond->prefix_len = a->addr.bitlen;
1292 memcpy(cond->addr, a->addr.data, alen);
1293 ptr += oplen;
1294 if (b->next) {
351efcde
SH		 1295 op = (struct inet_diag_bc_op *)ptr;
1296 *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)};
aba5acdf
SH		 1297 ptr += 4;
1298 }
1299 }
1300 return ptr - *bytecode;
1301 }
1302 case SSF_D_GE:
1303 {
acd1e437
SH		 1304 struct aafilter *x = (void *)f->pred;
1305
1306 if (!(*bytecode = malloc(8))) abort();
1307 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 };
1308 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1309 return 8;
1310 }
1311 case SSF_D_LE:
1312 {
acd1e437
SH		 1313 struct aafilter *x = (void *)f->pred;
1314
1315 if (!(*bytecode = malloc(8))) abort();
1316 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 };
1317 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1318 return 8;
1319 }
1320 case SSF_S_GE:
1321 {
acd1e437
SH		 1322 struct aafilter *x = (void *)f->pred;
1323
1324 if (!(*bytecode = malloc(8))) abort();
1325 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 };
1326 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1327 return 8;
1328 }
1329 case SSF_S_LE:
1330 {
acd1e437
SH		 1331 struct aafilter *x = (void *)f->pred;
1332
1333 if (!(*bytecode = malloc(8))) abort();
1334 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 };
1335 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1336 return 8;
1337 }
1338
1339 case SSF_AND:
1340 {
376fb868 1341 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1342 int l1, l2;
acd1e437 1343
aba5acdf
SH		 1344 l1 = ssfilter_bytecompile(f->pred, &a1);
1345 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1346 if (!l1 || !l2) {
1347 free(a1);
1348 free(a2);
1349 return 0;
1350 }
aba5acdf
SH		 1351 if (!(a = malloc(l1+l2))) abort();
1352 memcpy(a, a1, l1);
1353 memcpy(a+l1, a2, l2);
1354 free(a1); free(a2);
1355 ssfilter_patch(a, l1, l2);
1356 *bytecode = a;
1357 return l1+l2;
1358 }
1359 case SSF_OR:
1360 {
376fb868 1361 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1362 int l1, l2;
acd1e437 1363
aba5acdf
SH		 1364 l1 = ssfilter_bytecompile(f->pred, &a1);
1365 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1366 if (!l1 || !l2) {
1367 free(a1);
1368 free(a2);
1369 return 0;
1370 }
aba5acdf
SH		 1371 if (!(a = malloc(l1+l2+4))) abort();
1372 memcpy(a, a1, l1);
1373 memcpy(a+l1+4, a2, l2);
1374 free(a1); free(a2);
acd1e437 1375 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 };
aba5acdf
SH		 1376 *bytecode = a;
1377 return l1+l2+4;
1378 }
1379 case SSF_NOT:
1380 {
376fb868 1381 char *a1 = NULL, *a;
2a4fa1c3 1382 int l1;
acd1e437 1383
aba5acdf 1384 l1 = ssfilter_bytecompile(f->pred, &a1);
376fb868
DA		 1385 if (!l1) {
1386 free(a1);
1387 return 0;
1388 }
aba5acdf
SH		 1389 if (!(a = malloc(l1+4))) abort();
1390 memcpy(a, a1, l1);
1391 free(a1);
acd1e437 1392 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 };
aba5acdf
SH		 1393 *bytecode = a;
1394 return l1+4;
2d293212
DA		 1395 }
1396 case SSF_DEVCOND:
1397 {
1398 /* bytecompile for SSF_DEVCOND not supported yet */
1399 return 0;
ec75249b
LC		 1400 }
1401 case SSF_MARKMASK:
1402 {
1403 struct aafilter *a = (void *)f->pred;
1404 struct instr {
1405 struct inet_diag_bc_op op;
1406 struct inet_diag_markcond cond;
1407 };
1408 int inslen = sizeof(struct instr);
1409
1410 if (!(*bytecode = malloc(inslen))) abort();
1411 ((struct instr *)*bytecode)[0] = (struct instr) {
1412 { INET_DIAG_BC_MARK_COND, inslen, inslen + 4 },
1413 { a->mark, a->mask},
1414 };
1415
1416 return inslen;
aba5acdf
SH		 1417 }
1418 default:
1419 abort();
1420 }
1421}
1422
b4b0b7d5 1423static int remember_he(struct aafilter *a, struct hostent *he)
aba5acdf 1424{
ae665a52 1425 char **ptr = he->h_addr_list;
aba5acdf
SH		 1426 int cnt = 0;
1427 int len;
1428
1429 if (he->h_addrtype == AF_INET)
1430 len = 4;
1431 else if (he->h_addrtype == AF_INET6)
1432 len = 16;
1433 else
1434 return 0;
1435
1436 while (*ptr) {
1437 struct aafilter *b = a;
acd1e437 1438
aba5acdf
SH		 1439 if (a->addr.bitlen) {
1440 if ((b = malloc(sizeof(*b))) == NULL)
1441 return cnt;
1442 *b = *a;
aba5acdf
SH		 1443 a->next = b;
1444 }
1445 memcpy(b->addr.data, *ptr, len);
1446 b->addr.bytelen = len;
1447 b->addr.bitlen = len*8;
1448 b->addr.family = he->h_addrtype;
1449 ptr++;
1450 cnt++;
1451 }
1452 return cnt;
1453}
1454
b4b0b7d5 1455static int get_dns_host(struct aafilter *a, const char *addr, int fam)
aba5acdf
SH		 1456{
1457 static int notfirst;
1458 int cnt = 0;
1459 struct hostent *he;
1460
1461 a->addr.bitlen = 0;
1462 if (!notfirst) {
1463 sethostent(1);
1464 notfirst = 1;
1465 }
1466 he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam);
1467 if (he)
1468 cnt = remember_he(a, he);
1469 if (fam == AF_UNSPEC) {
1470 he = gethostbyname2(addr, AF_INET6);
1471 if (he)
1472 cnt += remember_he(a, he);
1473 }
1474 return !cnt;
1475}
1476
acd1e437 1477static int xll_initted;
aba5acdf 1478
b4b0b7d5 1479static void xll_init(void)
aba5acdf
SH		 1480{
1481 struct rtnl_handle rth;
acd1e437 1482
d2468da0
SH		 1483 if (rtnl_open(&rth, 0) < 0)
1484 exit(1);
1485
aba5acdf
SH		 1486 ll_init_map(&rth);
1487 rtnl_close(&rth);
1488 xll_initted = 1;
1489}
1490
b4b0b7d5 1491static const char *xll_index_to_name(int index)
aba5acdf
SH		 1492{
1493 if (!xll_initted)
1494 xll_init();
1495 return ll_index_to_name(index);
1496}
1497
b4b0b7d5 1498static int xll_name_to_index(const char *dev)
aba5acdf
SH		 1499{
1500 if (!xll_initted)
1501 xll_init();
1502 return ll_name_to_index(dev);
1503}
1504
2d293212
DA		 1505void *parse_devcond(char *name)
1506{
1507 struct aafilter a = { .iface = 0 };
1508 struct aafilter *res;
1509
1510 a.iface = xll_name_to_index(name);
1511 if (a.iface == 0) {
1512 char *end;
930d3f28 1513 unsigned long n;
2d293212 1514
930d3f28
DA		 1515 n = strtoul(name, &end, 0);
1516 if (!end || end == name || *end || n > UINT_MAX)
2d293212 1517 return NULL;
930d3f28
DA		 1518
1519 a.iface = n;
2d293212
DA		 1520 }
1521
1522 res = malloc(sizeof(*res));
1523 *res = a;
1524
1525 return res;
1526}
1527
7871f7db 1528void *parse_hostcond(char *addr, bool is_port)
aba5acdf
SH		 1529{
1530 char *port = NULL;
1527a17e 1531 struct aafilter a = { .port = -1 };
aba5acdf 1532 struct aafilter *res;
1527a17e 1533 int fam = preferred_family;
9db7bf15 1534 struct filter *f = &current_filter;
aba5acdf 1535
1527a17e 1536 if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) {
aba5acdf 1537 char *p;
acd1e437 1538
aba5acdf
SH		 1539 a.addr.family = AF_UNIX;
1540 if (strncmp(addr, "unix:", 5) == 0)
acd1e437 1541 addr += 5;
aba5acdf
SH		 1542 p = strdup(addr);
1543 a.addr.bitlen = 8*strlen(p);
99bb68ff 1544 memcpy(a.addr.data, &p, sizeof(p));
9db7bf15 1545 fam = AF_UNIX;
aba5acdf
SH		 1546 goto out;
1547 }
1548
1527a17e 1549 if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) {
aba5acdf
SH		 1550 a.addr.family = AF_PACKET;
1551 a.addr.bitlen = 0;
1552 if (strncmp(addr, "link:", 5) == 0)
acd1e437 1553 addr += 5;
aba5acdf
SH		 1554 port = strchr(addr, ':');
1555 if (port) {
1556 *port = 0;
1557 if (port[1] && strcmp(port+1, "*")) {
1558 if (get_integer(&a.port, port+1, 0)) {
1559 if ((a.port = xll_name_to_index(port+1)) <= 0)
1560 return NULL;
1561 }
1562 }
1563 }
1564 if (addr[0] && strcmp(addr, "*")) {
1565 unsigned short tmp;
acd1e437 1566
aba5acdf
SH		 1567 a.addr.bitlen = 32;
1568 if (ll_proto_a2n(&tmp, addr))
1569 return NULL;
1570 a.addr.data[0] = ntohs(tmp);
1571 }
9db7bf15 1572 fam = AF_PACKET;
aba5acdf
SH		 1573 goto out;
1574 }
1575
1527a17e 1576 if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) {
aba5acdf
SH		 1577 a.addr.family = AF_NETLINK;
1578 a.addr.bitlen = 0;
1579 if (strncmp(addr, "netlink:", 8) == 0)
acd1e437 1580 addr += 8;
aba5acdf
SH		 1581 port = strchr(addr, ':');
1582 if (port) {
1583 *port = 0;
1584 if (port[1] && strcmp(port+1, "*")) {
1585 if (get_integer(&a.port, port+1, 0)) {
1586 if (strcmp(port+1, "kernel") == 0)
1587 a.port = 0;
1588 else
1589 return NULL;
1590 }
1591 }
1592 }
1593 if (addr[0] && strcmp(addr, "*")) {
1594 a.addr.bitlen = 32;
b00daf6a 1595 if (nl_proto_a2n(&a.addr.data[0], addr) == -1)
1596 return NULL;
aba5acdf 1597 }
9db7bf15 1598 fam = AF_NETLINK;
aba5acdf
SH		 1599 goto out;
1600 }
1601
1527a17e 1602 if (fam == AF_INET || !strncmp(addr, "inet:", 5)) {
aba5acdf 1603 fam = AF_INET;
1527a17e
VK		 1604 if (!strncmp(addr, "inet:", 5))
1605 addr += 5;
1606 } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) {
aba5acdf 1607 fam = AF_INET6;
1527a17e
VK		 1608 if (!strncmp(addr, "inet6:", 6))
1609 addr += 6;
aba5acdf
SH		 1610 }
1611
1612 /* URL-like literal [] */
1613 if (addr[0] == '[') {
1614 addr++;
1615 if ((port = strchr(addr, ']')) == NULL)
1616 return NULL;
1617 *port++ = 0;
1618 } else if (addr[0] == '*') {
1619 port = addr+1;
1620 } else {
1621 port = strrchr(strchr(addr, '/') ? : addr, ':');
1622 }
7871f7db
VK		 1623
1624 if (is_port)
1625 port = addr;
1626
aba5acdf 1627 if (port && *port) {
7871f7db
VK		 1628 if (*port == ':')
1629 *port++ = 0;
1630
aba5acdf
SH		 1631 if (*port && *port != '*') {
1632 if (get_integer(&a.port, port, 0)) {
1633 struct servent *se1 = NULL;
1634 struct servent *se2 = NULL;
acd1e437 1635
aba5acdf
SH		 1636 if (current_filter.dbs&(1<<UDP_DB))
1637 se1 = getservbyname(port, UDP_PROTO);
1638 if (current_filter.dbs&(1<<TCP_DB))
1639 se2 = getservbyname(port, TCP_PROTO);
1640 if (se1 && se2 && se1->s_port != se2->s_port) {
1641 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1642 return NULL;
1643 }
1644 if (!se1)
1645 se1 = se2;
1646 if (se1) {
1647 a.port = ntohs(se1->s_port);
1648 } else {
1649 struct scache *s;
acd1e437 1650
aba5acdf
SH		 1651 for (s = rlist; s; s = s->next) {
1652 if ((s->proto == UDP_PROTO &&
1653 (current_filter.dbs&(1<<UDP_DB))) ||
1654 (s->proto == TCP_PROTO &&
1655 (current_filter.dbs&(1<<TCP_DB)))) {
1656 if (s->name && strcmp(s->name, port) == 0) {
1657 if (a.port > 0 && a.port != s->port) {
1658 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1659 return NULL;
1660 }
1661 a.port = s->port;
1662 }
1663 }
1664 }
1665 if (a.port <= 0) {
1666 fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port);
1667 return NULL;
1668 }
1669 }
1670 }
1671 }
1672 }
44448a90 1673 if (!is_port && *addr && *addr != '*') {
aba5acdf
SH		 1674 if (get_prefix_1(&a.addr, addr, fam)) {
1675 if (get_dns_host(&a, addr, fam)) {
1676 fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr);
1677 return NULL;
1678 }
1679 }
1680 }
1681
9db7bf15 1682out:
1527a17e 1683 if (fam != AF_UNSPEC) {
e56a959e 1684 int states = f->states;
1527a17e 1685 f->families = 0;
9db7bf15 1686 filter_af_set(f, fam);
e56a959e 1687 filter_states_set(f, states);
1527a17e 1688 }
9db7bf15 1689
aba5acdf
SH		 1690 res = malloc(sizeof(*res));
1691 if (res)
1692 memcpy(res, &a, sizeof(a));
1693 return res;
1694}
1695
ec75249b
LC		 1696void *parse_markmask(const char *markmask)
1697{
1698 struct aafilter a, *res;
1699
1700 if (strchr(markmask, '/')) {
1701 if (sscanf(markmask, "%i/%i", &a.mark, &a.mask) != 2)
1702 return NULL;
1703 } else {
1704 a.mask = 0xffffffff;
1705 if (sscanf(markmask, "%i", &a.mark) != 1)
1706 return NULL;
1707 }
1708
1709 res = malloc(sizeof(*res));
1710 if (res)
1711 memcpy(res, &a, sizeof(a));
1712 return res;
1713}
1714
5f27ac1d 1715static void proc_ctx_print(struct sockstat *s)
8250bc9f 1716{
5f27ac1d 1717 char *buf;
8250bc9f 1718
8250bc9f
VK		 1719 if (show_proc_ctx || show_sock_ctx) {
1720 if (find_entry(s->ino, &buf,
1721 (show_proc_ctx & show_sock_ctx) ?
1722 PROC_SOCK_CTX : PROC_CTX) > 0) {
1723 printf(" users:(%s)", buf);
1724 free(buf);
1725 }
1726 } else if (show_users) {
1727 if (find_entry(s->ino, &buf, USERS) > 0) {
1728 printf(" users:(%s)", buf);
1729 free(buf);
1730 }
1731 }
1732}
1733
5f27ac1d
PS		 1734static void inet_stats_print(struct sockstat *s)
1735{
1736 sock_state_print(s);
1737
1738 inet_addr_print(&s->local, s->lport, s->iface);
1739 inet_addr_print(&s->remote, s->rport, 0);
1740
1741 proc_ctx_print(s);
1742}
1743
055840f2 1744static int proc_parse_inet_addr(char *loc, char *rem, int family, struct
acd1e437 1745 sockstat * s)
8250bc9f
VK		 1746{
1747 s->local.family = s->remote.family = family;
1748 if (family == AF_INET) {
acd1e437
SH		 1749 sscanf(loc, "%x:%x", s->local.data, (unsigned *)&s->lport);
1750 sscanf(rem, "%x:%x", s->remote.data, (unsigned *)&s->rport);
8250bc9f
VK		 1751 s->local.bytelen = s->remote.bytelen = 4;
1752 return 0;
1753 } else {
1754 sscanf(loc, "%08x%08x%08x%08x:%x",
1755 s->local.data,
1756 s->local.data + 1,
1757 s->local.data + 2,
1758 s->local.data + 3,
1759 &s->lport);
1760 sscanf(rem, "%08x%08x%08x%08x:%x",
1761 s->remote.data,
1762 s->remote.data + 1,
1763 s->remote.data + 2,
1764 s->remote.data + 3,
1765 &s->rport);
1766 s->local.bytelen = s->remote.bytelen = 16;
1767 return 0;
1768 }
1769 return -1;
1770}
1771
1772static int proc_inet_split_line(char *line, char **loc, char **rem, char **data)
aba5acdf 1773{
aba5acdf 1774 char *p;
ae665a52 1775
aba5acdf
SH		 1776 if ((p = strchr(line, ':')) == NULL)
1777 return -1;
ae665a52 1778
8250bc9f
VK		 1779 *loc = p+2;
1780 if ((p = strchr(*loc, ':')) == NULL)
aba5acdf 1781 return -1;
ae665a52 1782
8250bc9f
VK		 1783 p[5] = 0;
1784 *rem = p+6;
1785 if ((p = strchr(*rem, ':')) == NULL)
aba5acdf 1786 return -1;
8250bc9f 1787
aba5acdf 1788 p[5] = 0;
8250bc9f
VK		 1789 *data = p+6;
1790 return 0;
1791}
ae665a52 1792
8250bc9f
VK		 1793static char *sprint_bw(char *buf, double bw)
1794{
1795 if (bw > 1000000.)
acd1e437 1796 sprintf(buf, "%.1fM", bw / 1000000.);
8250bc9f 1797 else if (bw > 1000.)
acd1e437 1798 sprintf(buf, "%.1fK", bw / 1000.);
8250bc9f
VK		 1799 else
1800 sprintf(buf, "%g", bw);
aba5acdf 1801
8250bc9f
VK		 1802 return buf;
1803}
ae665a52 1804
f89d46ad
PS		 1805static void sctp_stats_print(struct sctp_info *s)
1806{
1807 if (s->sctpi_tag)
1808 printf(" tag:%x", s->sctpi_tag);
1809 if (s->sctpi_state)
1810 printf(" state:%s", sctp_sstate_name[s->sctpi_state]);
1811 if (s->sctpi_rwnd)
1812 printf(" rwnd:%d", s->sctpi_rwnd);
1813 if (s->sctpi_unackdata)
1814 printf(" unackdata:%d", s->sctpi_unackdata);
1815 if (s->sctpi_penddata)
1816 printf(" penddata:%d", s->sctpi_penddata);
1817 if (s->sctpi_instrms)
1818 printf(" instrms:%d", s->sctpi_instrms);
1819 if (s->sctpi_outstrms)
1820 printf(" outstrms:%d", s->sctpi_outstrms);
1821 if (s->sctpi_inqueue)
1822 printf(" inqueue:%d", s->sctpi_inqueue);
1823 if (s->sctpi_outqueue)
1824 printf(" outqueue:%d", s->sctpi_outqueue);
1825 if (s->sctpi_overall_error)
1826 printf(" overerr:%d", s->sctpi_overall_error);
1827 if (s->sctpi_max_burst)
1828 printf(" maxburst:%d", s->sctpi_max_burst);
1829 if (s->sctpi_maxseg)
1830 printf(" maxseg:%d", s->sctpi_maxseg);
1831 if (s->sctpi_peer_rwnd)
1832 printf(" prwnd:%d", s->sctpi_peer_rwnd);
1833 if (s->sctpi_peer_tag)
1834 printf(" ptag:%x", s->sctpi_peer_tag);
1835 if (s->sctpi_peer_capable)
1836 printf(" pcapable:%d", s->sctpi_peer_capable);
1837 if (s->sctpi_peer_sack)
1838 printf(" psack:%d", s->sctpi_peer_sack);
1839 if (s->sctpi_s_autoclose)
1840 printf(" autoclose:%d", s->sctpi_s_autoclose);
1841 if (s->sctpi_s_adaptation_ind)
1842 printf(" adapind:%d", s->sctpi_s_adaptation_ind);
1843 if (s->sctpi_s_pd_point)
1844 printf(" pdpoint:%d", s->sctpi_s_pd_point);
1845 if (s->sctpi_s_nodelay)
1846 printf(" nodealy:%d", s->sctpi_s_nodelay);
1847 if (s->sctpi_s_disable_fragments)
1848 printf(" nofrag:%d", s->sctpi_s_disable_fragments);
1849 if (s->sctpi_s_v4mapped)
1850 printf(" v4mapped:%d", s->sctpi_s_v4mapped);
1851 if (s->sctpi_s_frag_interleave)
1852 printf(" fraginl:%d", s->sctpi_s_frag_interleave);
1853}
1854
8250bc9f
VK		 1855static void tcp_stats_print(struct tcpstat *s)
1856{
1857 char b1[64];
1858
1859 if (s->has_ts_opt)
1860 printf(" ts");
1861 if (s->has_sack_opt)
1862 printf(" sack");
1863 if (s->has_ecn_opt)
1864 printf(" ecn");
1865 if (s->has_ecnseen_opt)
1866 printf(" ecnseen");
1867 if (s->has_fastopen_opt)
1868 printf(" fastopen");
d2055ea5 1869 if (s->cong_alg[0])
8250bc9f
VK		 1870 printf(" %s", s->cong_alg);
1871 if (s->has_wscale_opt)
1872 printf(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale);
1873 if (s->rto)
1874 printf(" rto:%g", s->rto);
1875 if (s->backoff)
1876 printf(" backoff:%u", s->backoff);
1877 if (s->rtt)
1878 printf(" rtt:%g/%g", s->rtt, s->rttvar);
1879 if (s->ato)
1880 printf(" ato:%g", s->ato);
1881
1882 if (s->qack)
1883 printf(" qack:%d", s->qack);
1884 if (s->qack & 1)
1885 printf(" bidir");
1886
1887 if (s->mss)
1888 printf(" mss:%d", s->mss);
38e6dbc4
ED		 1889 if (s->rcv_mss)
1890 printf(" rcvmss:%d", s->rcv_mss);
1891 if (s->advmss)
1892 printf(" advmss:%d", s->advmss);
3bf5445c 1893 if (s->cwnd)
d1f338b3 1894 printf(" cwnd:%u", s->cwnd);
8250bc9f
VK		 1895 if (s->ssthresh)
1896 printf(" ssthresh:%d", s->ssthresh);
1897
1a4dda71
ED		 1898 if (s->bytes_acked)
1899 printf(" bytes_acked:%llu", s->bytes_acked);
1900 if (s->bytes_received)
1901 printf(" bytes_received:%llu", s->bytes_received);
ecb435ea
CG		 1902 if (s->segs_out)
1903 printf(" segs_out:%u", s->segs_out);
1904 if (s->segs_in)
1905 printf(" segs_in:%u", s->segs_in);
414aeec9
MKL		 1906 if (s->data_segs_out)
1907 printf(" data_segs_out:%u", s->data_segs_out);
1908 if (s->data_segs_in)
1909 printf(" data_segs_in:%u", s->data_segs_in);
1a4dda71 1910
8250bc9f
VK		 1911 if (s->dctcp && s->dctcp->enabled) {
1912 struct dctcpstat *dctcp = s->dctcp;
1913
3bf5445c 1914 printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
8250bc9f
VK		 1915 dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn,
1916 dctcp->ab_tot);
1917 } else if (s->dctcp) {
3bf5445c 1918 printf(" dctcp:fallback_mode");
8250bc9f
VK		 1919 }
1920
2f0f9aef
NC		 1921 if (s->bbr_info) {
1922 __u64 bw;
1923
1924 bw = s->bbr_info->bbr_bw_hi;
1925 bw <<= 32;
1926 bw |= s->bbr_info->bbr_bw_lo;
1927
1928 printf(" bbr:(bw:%sbps,mrtt:%g",
1929 sprint_bw(b1, bw * 8.0),
1930 (double)s->bbr_info->bbr_min_rtt / 1000.0);
1931 if (s->bbr_info->bbr_pacing_gain)
1932 printf(",pacing_gain:%g",
1933 (double)s->bbr_info->bbr_pacing_gain / 256.0);
1934 if (s->bbr_info->bbr_cwnd_gain)
1935 printf(",cwnd_gain:%g",
1936 (double)s->bbr_info->bbr_cwnd_gain / 256.0);
1937 printf(")");
1938 }
1939
8250bc9f
VK		 1940 if (s->send_bps)
1941 printf(" send %sbps", sprint_bw(b1, s->send_bps));
1942 if (s->lastsnd)
1943 printf(" lastsnd:%u", s->lastsnd);
1944 if (s->lastrcv)
1945 printf(" lastrcv:%u", s->lastrcv);
1946 if (s->lastack)
1947 printf(" lastack:%u", s->lastack);
1948
1949 if (s->pacing_rate) {
1950 printf(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate));
1951 if (s->pacing_rate_max)
1952 printf("/%sbps", sprint_bw(b1,
1953 s->pacing_rate_max));
1954 }
1955
2f579872
NC		 1956 if (s->delivery_rate)
1957 printf(" delivery_rate %sbps", sprint_bw(b1, s->delivery_rate));
1958 if (s->app_limited)
1959 printf(" app_limited");
1960
b6c7fc61
YC		 1961 if (s->busy_time) {
1962 printf(" busy:%llums", s->busy_time / 1000);
1963 if (s->rwnd_limited)
1964 printf(" rwnd_limited:%llums(%.1f%%)",
1965 s->rwnd_limited / 1000,
1966 100.0 * s->rwnd_limited / s->busy_time);
1967 if (s->sndbuf_limited)
1968 printf(" sndbuf_limited:%llums(%.1f%%)",
1969 s->sndbuf_limited / 1000,
1970 100.0 * s->sndbuf_limited / s->busy_time);
1971 }
1972
8250bc9f
VK		 1973 if (s->unacked)
1974 printf(" unacked:%u", s->unacked);
1975 if (s->retrans || s->retrans_total)
1976 printf(" retrans:%u/%u", s->retrans, s->retrans_total);
1977 if (s->lost)
1978 printf(" lost:%u", s->lost);
055840f2 1979 if (s->sacked && s->ss.state != SS_LISTEN)
8250bc9f
VK		 1980 printf(" sacked:%u", s->sacked);
1981 if (s->fackets)
1982 printf(" fackets:%u", s->fackets);
1983 if (s->reordering != 3)
1984 printf(" reordering:%d", s->reordering);
1985 if (s->rcv_rtt)
1986 printf(" rcv_rtt:%g", s->rcv_rtt);
1987 if (s->rcv_space)
1988 printf(" rcv_space:%d", s->rcv_space);
9e99e495
SH		 1989 if (s->not_sent)
1990 printf(" notsent:%u", s->not_sent);
1991 if (s->min_rtt)
1992 printf(" minrtt:%g", s->min_rtt);
8250bc9f
VK		 1993}
1994
055840f2
VK		 1995static void tcp_timer_print(struct tcpstat *s)
1996{
86dfa1be
PS		 1997 static const char * const tmr_name[] = {
1998 "off",
1999 "on",
2000 "keepalive",
2001 "timewait",
2002 "persist",
2003 "unknown"
2004 };
2005
055840f2
VK		 2006 if (s->timer) {
2007 if (s->timer > 4)
2008 s->timer = 5;
2009 printf(" timer:(%s,%s,%d)",
2010 tmr_name[s->timer],
2011 print_ms_timer(s->timeout),
2012 s->retrans);
2013 }
2014}
2015
f89d46ad
PS		 2016static void sctp_timer_print(struct tcpstat *s)
2017{
2018 if (s->timer)
2019 printf(" timer:(T3_RTX,%s,%d)",
2020 print_ms_timer(s->timeout), s->retrans);
2021}
2022
8250bc9f
VK		 2023static int tcp_show_line(char *line, const struct filter *f, int family)
2024{
2025 int rto = 0, ato = 0;
2026 struct tcpstat s = {};
2027 char *loc, *rem, *data;
2028 char opt[256];
2029 int n;
2030 int hz = get_user_hz();
2031
2032 if (proc_inet_split_line(line, &loc, &rem, &data))
2033 return -1;
2034
2035 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2036
8250bc9f
VK		 2037 if (!(f->states & (1 << state)))
2038 return 0;
2039
055840f2 2040 proc_parse_inet_addr(loc, rem, family, &s.ss);
ae665a52 2041
055840f2 2042 if (f->f && run_ssfilter(f->f, &s.ss) == 0)
aba5acdf 2043 return 0;
ae665a52 2044
aba5acdf 2045 opt[0] = 0;
d1f338b3 2046 n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
055840f2
VK		 2047 &s.ss.state, &s.ss.wq, &s.ss.rq,
2048 &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes,
2049 &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd,
2050 &s.ssthresh, opt);
ae665a52 2051
aba5acdf
SH		 2052 if (n < 17)
2053 opt[0] = 0;
ae665a52 2054
aba5acdf 2055 if (n < 12) {
8250bc9f 2056 rto = 0;
aba5acdf
SH		 2057 s.cwnd = 2;
2058 s.ssthresh = -1;
8250bc9f 2059 ato = s.qack = 0;
aba5acdf 2060 }
ae665a52 2061
8250bc9f
VK		 2062 s.retrans = s.timer != 1 ? s.probes : s.retrans;
2063 s.timeout = (s.timeout * 1000 + hz - 1) / hz;
2064 s.ato = (double)ato / hz;
2065 s.qack /= 2;
2066 s.rto = (double)rto;
2067 s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh;
2068 s.rto = s.rto != 3 * hz ? s.rto / hz : 0;
be7e4d20 2069 s.ss.type = IPPROTO_TCP;
ae665a52 2070
be7e4d20 2071 inet_stats_print(&s.ss);
055840f2
VK		 2072
2073 if (show_options)
2074 tcp_timer_print(&s);
116ac927 2075
aba5acdf 2076 if (show_details) {
f1b39e1b 2077 sock_details_print(&s.ss);
aba5acdf
SH		 2078 if (opt[0])
2079 printf(" opt:\"%s\"", opt);
2080 }
aba5acdf 2081
8250bc9f
VK		 2082 if (show_tcpinfo)
2083 tcp_stats_print(&s);
2084
2085 printf("\n");
aba5acdf
SH		 2086 return 0;
2087}
2088
ab01dbbb
SH		 2089static int generic_record_read(FILE *fp,
2090 int (*worker)(char*, const struct filter *, int),
2091 const struct filter *f, int fam)
aba5acdf 2092{
ab01dbbb 2093 char line[256];
aba5acdf 2094
ab01dbbb
SH		 2095 /* skip header */
2096 if (fgets(line, sizeof(line), fp) == NULL)
aba5acdf 2097 goto outerr;
ab01dbbb
SH		 2098
2099 while (fgets(line, sizeof(line), fp) != NULL) {
2100 int n = strlen(line);
acd1e437 2101
ab01dbbb
SH		 2102 if (n == 0 || line[n-1] != '\n') {
2103 errno = -EINVAL;
2104 return -1;
aba5acdf 2105 }
ab01dbbb 2106 line[n-1] = 0;
aba5acdf 2107
ab01dbbb
SH		 2108 if (worker(line, f, fam) < 0)
2109 return 0;
2110 }
aba5acdf 2111outerr:
ab01dbbb
SH		 2112
2113 return ferror(fp) ? -1 : 0;
aba5acdf 2114}
ae665a52 2115
51ff9f24
HFS		 2116static void print_skmeminfo(struct rtattr *tb[], int attrtype)
2117{
2118 const __u32 *skmeminfo;
db08bdb8
VK		 2119
2120 if (!tb[attrtype]) {
2121 if (attrtype == INET_DIAG_SKMEMINFO) {
2122 if (!tb[INET_DIAG_MEMINFO])
2123 return;
2124
2125 const struct inet_diag_meminfo *minfo =
2126 RTA_DATA(tb[INET_DIAG_MEMINFO]);
2127
2128 printf(" mem:(r%u,w%u,f%u,t%u)",
2129 minfo->idiag_rmem,
2130 minfo->idiag_wmem,
2131 minfo->idiag_fmem,
2132 minfo->idiag_tmem);
2133 }
51ff9f24 2134 return;
db08bdb8
VK		 2135 }
2136
51ff9f24
HFS		 2137 skmeminfo = RTA_DATA(tb[attrtype]);
2138
2139 printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2140 skmeminfo[SK_MEMINFO_RMEM_ALLOC],
2141 skmeminfo[SK_MEMINFO_RCVBUF],
2142 skmeminfo[SK_MEMINFO_WMEM_ALLOC],
2143 skmeminfo[SK_MEMINFO_SNDBUF],
2144 skmeminfo[SK_MEMINFO_FWD_ALLOC],
2145 skmeminfo[SK_MEMINFO_WMEM_QUEUED],
2146 skmeminfo[SK_MEMINFO_OPTMEM]);
2147
2148 if (RTA_PAYLOAD(tb[attrtype]) >=
2149 (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32))
2150 printf(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]);
2151
6df9c7a0
ED		 2152 if (RTA_PAYLOAD(tb[attrtype]) >=
2153 (SK_MEMINFO_DROPS + 1) * sizeof(__u32))
2154 printf(",d%u", skmeminfo[SK_MEMINFO_DROPS]);
2155
51ff9f24
HFS		 2156 printf(")");
2157}
2158
8250bc9f
VK		 2159#define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2160
5b816047
PE		 2161static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2162 struct rtattr *tb[])
7d105b56 2163{
b4b0b7d5 2164 double rtt = 0;
8250bc9f 2165 struct tcpstat s = {};
7d105b56 2166
055840f2
VK		 2167 s.ss.state = r->idiag_state;
2168
db08bdb8 2169 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
7d105b56 2170
351efcde 2171 if (tb[INET_DIAG_INFO]) {
05e18118 2172 struct tcp_info *info;
351efcde 2173 int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
05e18118
SH		 2174
2175 /* workaround for older kernels with less fields */
2176 if (len < sizeof(*info)) {
2177 info = alloca(sizeof(*info));
351efcde 2178 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
656e8fdd 2179 memset((char *)info + len, 0, sizeof(*info) - len);
05e18118 2180 } else
351efcde 2181 info = RTA_DATA(tb[INET_DIAG_INFO]);
05e18118 2182
b4b0b7d5 2183 if (show_options) {
8250bc9f
VK		 2184 s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS);
2185 s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK);
2186 s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN);
2187 s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN);
2188 s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA);
b4b0b7d5 2189 }
52d5ac3f 2190
d2055ea5
ED		 2191 if (tb[INET_DIAG_CONG])
2192 strncpy(s.cong_alg,
2193 rta_getattr_str(tb[INET_DIAG_CONG]),
2194 sizeof(s.cong_alg) - 1);
8250bc9f
VK		 2195
2196 if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) {
2197 s.has_wscale_opt = true;
2198 s.snd_wscale = info->tcpi_snd_wscale;
2199 s.rcv_wscale = info->tcpi_rcv_wscale;
2200 }
ea8fc104 2201
7d105b56 2202 if (info->tcpi_rto && info->tcpi_rto != 3000000)
8250bc9f
VK		 2203 s.rto = (double)info->tcpi_rto / 1000;
2204
2205 s.backoff = info->tcpi_backoff;
2206 s.rtt = (double)info->tcpi_rtt / 1000;
2207 s.rttvar = (double)info->tcpi_rttvar / 1000;
11ba90fc 2208 s.ato = (double)info->tcpi_ato / 1000;
8250bc9f 2209 s.mss = info->tcpi_snd_mss;
38e6dbc4
ED		 2210 s.rcv_mss = info->tcpi_rcv_mss;
2211 s.advmss = info->tcpi_advmss;
8250bc9f
VK		 2212 s.rcv_space = info->tcpi_rcv_space;
2213 s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000;
2214 s.lastsnd = info->tcpi_last_data_sent;
2215 s.lastrcv = info->tcpi_last_data_recv;
2216 s.lastack = info->tcpi_last_ack_recv;
2217 s.unacked = info->tcpi_unacked;
2218 s.retrans = info->tcpi_retrans;
2219 s.retrans_total = info->tcpi_total_retrans;
2220 s.lost = info->tcpi_lost;
2221 s.sacked = info->tcpi_sacked;
2222 s.reordering = info->tcpi_reordering;
2223 s.rcv_space = info->tcpi_rcv_space;
2224 s.cwnd = info->tcpi_snd_cwnd;
2225
7d105b56 2226 if (info->tcpi_snd_ssthresh < 0xFFFF)
8250bc9f 2227 s.ssthresh = info->tcpi_snd_ssthresh;
52d5ac3f 2228
b4b0b7d5 2229 rtt = (double) info->tcpi_rtt;
351efcde 2230 if (tb[INET_DIAG_VEGASINFO]) {
05e18118 2231 const struct tcpvegas_info *vinfo
351efcde 2232 = RTA_DATA(tb[INET_DIAG_VEGASINFO]);
7d105b56 2233
ae665a52 2234 if (vinfo->tcpv_enabled &&
8250bc9f 2235 vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff)
ea8fc104 2236 rtt = vinfo->tcpv_rtt;
b4b0b7d5
SH		 2237 }
2238
907e1aca 2239 if (tb[INET_DIAG_DCTCPINFO]) {
8250bc9f
VK		 2240 struct dctcpstat *dctcp = malloc(sizeof(struct
2241 dctcpstat));
2242
907e1aca
DB		 2243 const struct tcp_dctcp_info *dinfo
2244 = RTA_DATA(tb[INET_DIAG_DCTCPINFO]);
2245
8250bc9f
VK		 2246 dctcp->enabled = !!dinfo->dctcp_enabled;
2247 dctcp->ce_state = dinfo->dctcp_ce_state;
2248 dctcp->alpha = dinfo->dctcp_alpha;
2249 dctcp->ab_ecn = dinfo->dctcp_ab_ecn;
2250 dctcp->ab_tot = dinfo->dctcp_ab_tot;
2251 s.dctcp = dctcp;
907e1aca
DB		 2252 }
2253
2f0f9aef
NC		 2254 if (tb[INET_DIAG_BBRINFO]) {
2255 const void *bbr_info = RTA_DATA(tb[INET_DIAG_BBRINFO]);
2256 int len = min(RTA_PAYLOAD(tb[INET_DIAG_BBRINFO]),
2257 sizeof(*s.bbr_info));
2258
2259 s.bbr_info = calloc(1, sizeof(*s.bbr_info));
2260 if (s.bbr_info && bbr_info)
2261 memcpy(s.bbr_info, bbr_info, len);
2262 }
2263
b4b0b7d5 2264 if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
8250bc9f
VK		 2265 s.send_bps = (double) info->tcpi_snd_cwnd *
2266 (double)info->tcpi_snd_mss * 8000000. / rtt;
7d105b56 2267 }
b4b0b7d5 2268
eb6028b2 2269 if (info->tcpi_pacing_rate &&
8250bc9f
VK		 2270 info->tcpi_pacing_rate != ~0ULL) {
2271 s.pacing_rate = info->tcpi_pacing_rate * 8.;
eb6028b2
ED		 2272
2273 if (info->tcpi_max_pacing_rate &&
8250bc9f
VK		 2274 info->tcpi_max_pacing_rate != ~0ULL)
2275 s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.;
eb6028b2 2276 }
1a4dda71
ED		 2277 s.bytes_acked = info->tcpi_bytes_acked;
2278 s.bytes_received = info->tcpi_bytes_received;
ecb435ea
CG		 2279 s.segs_out = info->tcpi_segs_out;
2280 s.segs_in = info->tcpi_segs_in;
414aeec9
MKL		 2281 s.data_segs_out = info->tcpi_data_segs_out;
2282 s.data_segs_in = info->tcpi_data_segs_in;
9e99e495 2283 s.not_sent = info->tcpi_notsent_bytes;
d9ba887e
ED		 2284 if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U)
2285 s.min_rtt = (double) info->tcpi_min_rtt / 1000;
2f579872
NC		 2286 s.delivery_rate = info->tcpi_delivery_rate * 8.;
2287 s.app_limited = info->tcpi_delivery_rate_app_limited;
b6c7fc61
YC		 2288 s.busy_time = info->tcpi_busy_time;
2289 s.rwnd_limited = info->tcpi_rwnd_limited;
2290 s.sndbuf_limited = info->tcpi_sndbuf_limited;
8250bc9f 2291 tcp_stats_print(&s);
92de1c2c 2292 free(s.dctcp);
2f0f9aef 2293 free(s.bbr_info);
77a8ca81 2294 }
77a8ca81
PE		 2295}
2296
f89d46ad
PS		 2297static const char *format_host_sa(struct sockaddr_storage *sa)
2298{
2299 union {
2300 struct sockaddr_in sin;
2301 struct sockaddr_in6 sin6;
2302 } *saddr = (void *)sa;
2303
2304 switch (sa->ss_family) {
2305 case AF_INET:
2306 return format_host(AF_INET, 4, &saddr->sin.sin_addr);
2307 case AF_INET6:
2308 return format_host(AF_INET6, 16, &saddr->sin6.sin6_addr);
2309 default:
2310 return "";
2311 }
2312}
2313
2314static void sctp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2315 struct rtattr *tb[])
2316{
2317 struct sockaddr_storage *sa;
2318 int len;
2319
2320 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
2321
2322 if (tb[INET_DIAG_LOCALS]) {
2323 len = RTA_PAYLOAD(tb[INET_DIAG_LOCALS]);
2324 sa = RTA_DATA(tb[INET_DIAG_LOCALS]);
2325
2326 printf("locals:%s", format_host_sa(sa));
2327 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2328 printf(",%s", format_host_sa(sa));
2329
2330 }
2331 if (tb[INET_DIAG_PEERS]) {
2332 len = RTA_PAYLOAD(tb[INET_DIAG_PEERS]);
2333 sa = RTA_DATA(tb[INET_DIAG_PEERS]);
2334
2335 printf(" peers:%s", format_host_sa(sa));
2336 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2337 printf(",%s", format_host_sa(sa));
2338 }
2339 if (tb[INET_DIAG_INFO]) {
2340 struct sctp_info *info;
2341 len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
2342
2343 /* workaround for older kernels with less fields */
2344 if (len < sizeof(*info)) {
2345 info = alloca(sizeof(*info));
2346 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
2347 memset((char *)info + len, 0, sizeof(*info) - len);
2348 } else
2349 info = RTA_DATA(tb[INET_DIAG_INFO]);
2350
2351 sctp_stats_print(info);
2352 }
2353}
2354
82d73ea0 2355static void parse_diag_msg(struct nlmsghdr *nlh, struct sockstat *s)
aba5acdf 2356{
acd1e437 2357 struct rtattr *tb[INET_DIAG_MAX+1];
351efcde 2358 struct inet_diag_msg *r = NLMSG_DATA(nlh);
aba5acdf 2359
acd1e437 2360 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
5b816047
PE		 2361 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
2362
82d73ea0
DA		 2363 s->state = r->idiag_state;
2364 s->local.family = s->remote.family = r->idiag_family;
2365 s->lport = ntohs(r->id.idiag_sport);
2366 s->rport = ntohs(r->id.idiag_dport);
2367 s->wq = r->idiag_wqueue;
2368 s->rq = r->idiag_rqueue;
2369 s->ino = r->idiag_inode;
2370 s->uid = r->idiag_uid;
2371 s->iface = r->id.idiag_if;
2372 s->sk = cookie_sk_get(&r->id.idiag_cookie[0]);
2373
ec75249b
LC		 2374 s->mark = 0;
2375 if (tb[INET_DIAG_MARK])
9f1370c0 2376 s->mark = rta_getattr_u32(tb[INET_DIAG_MARK]);
41fe6c34 2377 if (tb[INET_DIAG_PROTOCOL])
9f1370c0 2378 s->raw_prot = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]);
41fe6c34
CG		 2379 else
2380 s->raw_prot = 0;
ec75249b 2381
82d73ea0
DA		 2382 if (s->local.family == AF_INET)
2383 s->local.bytelen = s->remote.bytelen = 4;
2384 else
2385 s->local.bytelen = s->remote.bytelen = 16;
8250bc9f 2386
82d73ea0
DA		 2387 memcpy(s->local.data, r->id.idiag_src, s->local.bytelen);
2388 memcpy(s->remote.data, r->id.idiag_dst, s->local.bytelen);
2389}
aba5acdf 2390
82d73ea0 2391static int inet_show_sock(struct nlmsghdr *nlh,
be7e4d20 2392 struct sockstat *s)
82d73ea0
DA		 2393{
2394 struct rtattr *tb[INET_DIAG_MAX+1];
2395 struct inet_diag_msg *r = NLMSG_DATA(nlh);
2396
2397 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
2398 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
aba5acdf 2399
6885e3bf 2400 if (tb[INET_DIAG_PROTOCOL])
9f1370c0 2401 s->type = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]);
6885e3bf 2402
be7e4d20 2403 inet_stats_print(s);
116ac927 2404
055840f2
VK		 2405 if (show_options) {
2406 struct tcpstat t = {};
2407
2408 t.timer = r->idiag_timer;
2409 t.timeout = r->idiag_expires;
2410 t.retrans = r->idiag_retrans;
be7e4d20 2411 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2412 sctp_timer_print(&t);
2413 else
2414 tcp_timer_print(&t);
055840f2
VK		 2415 }
2416
aba5acdf 2417 if (show_details) {
82d73ea0
DA		 2418 sock_details_print(s);
2419 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY]) {
f32dc746 2420 unsigned char v6only;
acd1e437 2421
9f1370c0 2422 v6only = rta_getattr_u8(tb[INET_DIAG_SKV6ONLY]);
f32dc746
PS		 2423 printf(" v6only:%u", v6only);
2424 }
5b816047
PE		 2425 if (tb[INET_DIAG_SHUTDOWN]) {
2426 unsigned char mask;
acd1e437 2427
9f1370c0 2428 mask = rta_getattr_u8(tb[INET_DIAG_SHUTDOWN]);
5b816047
PE		 2429 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
2430 }
aba5acdf 2431 }
8250bc9f 2432
be7e4d20 2433 if (show_mem || (show_tcpinfo && s->type != IPPROTO_UDP)) {
7d105b56 2434 printf("\n\t");
be7e4d20 2435 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2436 sctp_show_info(nlh, r, tb);
2437 else
2438 tcp_show_info(nlh, r, tb);
aba5acdf 2439 }
f89d46ad 2440 sctp_ino = s->ino;
7d105b56 2441
aba5acdf 2442 printf("\n");
aba5acdf 2443 return 0;
aba5acdf
SH		 2444}
2445
746a695f 2446static int tcpdiag_send(int fd, int protocol, struct filter *f)
aba5acdf 2447{
d17b136f 2448 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
aba5acdf
SH		 2449 struct {
2450 struct nlmsghdr nlh;
351efcde 2451 struct inet_diag_req r;
d17b136f
PS		 2452 } req = {
2453 .nlh.nlmsg_len = sizeof(req),
2454 .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
2455 .nlh.nlmsg_seq = MAGIC_SEQ,
2456 .r.idiag_family = AF_INET,
2457 .r.idiag_states = f->states,
2458 };
aba5acdf
SH		 2459 char *bc = NULL;
2460 int bclen;
2461 struct msghdr msg;
2462 struct rtattr rta;
aba5acdf 2463 struct iovec iov[3];
376fb868 2464 int iovlen = 1;
aba5acdf 2465
346f8ca8
PE		 2466 if (protocol == IPPROTO_UDP)
2467 return -1;
2468
3fe5b534
PE		 2469 if (protocol == IPPROTO_TCP)
2470 req.nlh.nlmsg_type = TCPDIAG_GETSOCK;
2471 else
2472 req.nlh.nlmsg_type = DCCPDIAG_GETSOCK;
910b0397 2473 if (show_mem) {
ae665a52 2474 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
910b0397
SW		 2475 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2476 }
b4b0b7d5 2477
7d105b56 2478 if (show_tcpinfo) {
351efcde
SH		 2479 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2480 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2481 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
7d105b56 2482 }
aba5acdf 2483
ae665a52
SH		 2484 iov[0] = (struct iovec){
2485 .iov_base = &req,
2486 .iov_len = sizeof(req)
ea8fc104 2487 };
aba5acdf
SH		 2488 if (f->f) {
2489 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2490 if (bclen) {
2491 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2492 rta.rta_len = RTA_LENGTH(bclen);
2493 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2494 iov[2] = (struct iovec){ bc, bclen };
2495 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2496 iovlen = 3;
2497 }
aba5acdf
SH		 2498 }
2499
2500 msg = (struct msghdr) {
acd1e437 2501 .msg_name = (void *)&nladdr,
ea8fc104 2502 .msg_namelen = sizeof(nladdr),
ae665a52 2503 .msg_iov = iov,
376fb868 2504 .msg_iovlen = iovlen,
aba5acdf
SH		 2505 };
2506
930a75f9
ED		 2507 if (sendmsg(fd, &msg, 0) < 0) {
2508 close(fd);
aba5acdf 2509 return -1;
930a75f9 2510 }
aba5acdf 2511
746a695f
PE		 2512 return 0;
2513}
2514
886d19d6
PE		 2515static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
2516{
d17b136f 2517 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
5fb421d4 2518 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
886d19d6
PE		 2519 char *bc = NULL;
2520 int bclen;
2521 struct msghdr msg;
2522 struct rtattr rta;
2523 struct iovec iov[3];
376fb868 2524 int iovlen = 1;
886d19d6
PE		 2525
2526 if (family == PF_UNSPEC)
2527 return tcpdiag_send(fd, protocol, f);
2528
886d19d6
PE		 2529 memset(&req.r, 0, sizeof(req.r));
2530 req.r.sdiag_family = family;
2531 req.r.sdiag_protocol = protocol;
2532 req.r.idiag_states = f->states;
2533 if (show_mem) {
2534 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
2535 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2536 }
2537
2538 if (show_tcpinfo) {
2539 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2540 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2541 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
2542 }
2543
2544 iov[0] = (struct iovec){
2545 .iov_base = &req,
2546 .iov_len = sizeof(req)
2547 };
2548 if (f->f) {
2549 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2550 if (bclen) {
2551 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2552 rta.rta_len = RTA_LENGTH(bclen);
2553 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2554 iov[2] = (struct iovec){ bc, bclen };
2555 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2556 iovlen = 3;
2557 }
886d19d6
PE		 2558 }
2559
2560 msg = (struct msghdr) {
acd1e437 2561 .msg_name = (void *)&nladdr,
886d19d6
PE		 2562 .msg_namelen = sizeof(nladdr),
2563 .msg_iov = iov,
376fb868 2564 .msg_iovlen = iovlen,
886d19d6
PE		 2565 };
2566
2567 if (sendmsg(fd, &msg, 0) < 0) {
2568 close(fd);
2569 return -1;
2570 }
2571
2572 return 0;
2573}
2574
486ccd99
VK		 2575struct inet_diag_arg {
2576 struct filter *f;
2577 int protocol;
fb2594c1 2578 struct rtnl_handle *rth;
486ccd99 2579};
aba5acdf 2580
41fe6c34 2581static int kill_inet_sock(struct nlmsghdr *h, void *arg, struct sockstat *s)
fb2594c1
LC		 2582{
2583 struct inet_diag_msg *d = NLMSG_DATA(h);
2584 struct inet_diag_arg *diag_arg = arg;
2585 struct rtnl_handle *rth = diag_arg->rth;
acd1e437 2586
fb2594c1
LC		 2587 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
2588
2589 req.nlh.nlmsg_type = SOCK_DESTROY;
2590 req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
2591 req.nlh.nlmsg_seq = ++rth->seq;
2592 req.r.sdiag_family = d->idiag_family;
2593 req.r.sdiag_protocol = diag_arg->protocol;
2594 req.r.id = d->id;
2595
41fe6c34
CG		 2596 if (diag_arg->protocol == IPPROTO_RAW) {
2597 struct inet_diag_req_raw *raw = (void *)&req.r;
2598
2599 BUILD_BUG_ON(sizeof(req.r) != sizeof(*raw));
2600 raw->sdiag_raw_protocol = s->raw_prot;
2601 }
2602
fb2594c1
LC		 2603 return rtnl_talk(rth, &req.nlh, NULL, 0);
2604}
2605
486ccd99
VK		 2606static int show_one_inet_sock(const struct sockaddr_nl *addr,
2607 struct nlmsghdr *h, void *arg)
2608{
2609 int err;
2610 struct inet_diag_arg *diag_arg = arg;
2611 struct inet_diag_msg *r = NLMSG_DATA(h);
82d73ea0 2612 struct sockstat s = {};
aba5acdf 2613
486ccd99
VK		 2614 if (!(diag_arg->f->families & (1 << r->idiag_family)))
2615 return 0;
82d73ea0
DA		 2616
2617 parse_diag_msg(h, &s);
be7e4d20 2618 s.type = diag_arg->protocol;
82d73ea0
DA		 2619
2620 if (diag_arg->f->f && run_ssfilter(diag_arg->f->f, &s) == 0)
2621 return 0;
2622
41fe6c34 2623 if (diag_arg->f->kill && kill_inet_sock(h, arg, &s) != 0) {
fb2594c1
LC		 2624 if (errno == EOPNOTSUPP || errno == ENOENT) {
2625 /* Socket can't be closed, or is already closed. */
2626 return 0;
2627 } else {
2628 perror("SOCK_DESTROY answers");
2629 return -1;
2630 }
2631 }
82d73ea0 2632
be7e4d20 2633 err = inet_show_sock(h, &s);
82d73ea0 2634 if (err < 0)
486ccd99 2635 return err;
aba5acdf 2636
486ccd99
VK		 2637 return 0;
2638}
886d19d6 2639
486ccd99
VK		 2640static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol)
2641{
2642 int err = 0;
fb2594c1 2643 struct rtnl_handle rth, rth2;
486ccd99
VK		 2644 int family = PF_INET;
2645 struct inet_diag_arg arg = { .f = f, .protocol = protocol };
886d19d6 2646
486ccd99
VK		 2647 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
2648 return -1;
fb2594c1
LC		 2649
2650 if (f->kill) {
2651 if (rtnl_open_byproto(&rth2, 0, NETLINK_SOCK_DIAG)) {
2652 rtnl_close(&rth);
2653 return -1;
2654 }
2655 arg.rth = &rth2;
2656 }
2657
486ccd99
VK		 2658 rth.dump = MAGIC_SEQ;
2659 rth.dump_fp = dump_fp;
518af1e0
ED		 2660 if (preferred_family == PF_INET6)
2661 family = PF_INET6;
886d19d6 2662
486ccd99
VK		 2663again:
2664 if ((err = sockdiag_send(family, rth.fd, protocol, f)))
2665 goto Exit;
aba5acdf 2666
486ccd99
VK		 2667 if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) {
2668 if (family != PF_UNSPEC) {
2669 family = PF_UNSPEC;
2670 goto again;
aba5acdf 2671 }
486ccd99 2672 goto Exit;
aba5acdf 2673 }
518af1e0 2674 if (family == PF_INET && preferred_family != PF_INET) {
886d19d6
PE		 2675 family = PF_INET6;
2676 goto again;
2677 }
2678
486ccd99
VK		 2679Exit:
2680 rtnl_close(&rth);
fb2594c1
LC		 2681 if (arg.rth)
2682 rtnl_close(arg.rth);
486ccd99 2683 return err;
aba5acdf
SH		 2684}
2685
ab01dbbb 2686static int tcp_show_netlink_file(struct filter *f)
aba5acdf
SH		 2687{
2688 FILE *fp;
e557212e 2689 char buf[16384];
4b45ae22 2690 int err = -1;
aba5acdf
SH		 2691
2692 if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) {
2693 perror("fopen($TCPDIAG_FILE)");
4b45ae22 2694 return err;
aba5acdf
SH		 2695 }
2696
2697 while (1) {
4b45ae22 2698 int status, err2;
acd1e437 2699 struct nlmsghdr *h = (struct nlmsghdr *)buf;
82d73ea0 2700 struct sockstat s = {};
aba5acdf
SH		 2701
2702 status = fread(buf, 1, sizeof(*h), fp);
2703 if (status < 0) {
2704 perror("Reading header from $TCPDIAG_FILE");
4b45ae22 2705 break;
aba5acdf
SH		 2706 }
2707 if (status != sizeof(*h)) {
2708 perror("Unexpected EOF reading $TCPDIAG_FILE");
4b45ae22 2709 break;
aba5acdf
SH		 2710 }
2711
2712 status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp);
2713
2714 if (status < 0) {
2715 perror("Reading $TCPDIAG_FILE");
4b45ae22 2716 break;
aba5acdf
SH		 2717 }
2718 if (status + sizeof(*h) < h->nlmsg_len) {
2719 perror("Unexpected EOF reading $TCPDIAG_FILE");
4b45ae22 2720 break;
aba5acdf
SH		 2721 }
2722
2723 /* The only legal exit point */
4b45ae22
PS		 2724 if (h->nlmsg_type == NLMSG_DONE) {
2725 err = 0;
2726 break;
2727 }
aba5acdf
SH		 2728
2729 if (h->nlmsg_type == NLMSG_ERROR) {
acd1e437
SH		 2730 struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h);
2731
aba5acdf
SH		 2732 if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
2733 fprintf(stderr, "ERROR truncated\n");
2734 } else {
2735 errno = -err->error;
2736 perror("TCPDIAG answered");
2737 }
4b45ae22 2738 break;
aba5acdf
SH		 2739 }
2740
82d73ea0 2741 parse_diag_msg(h, &s);
be7e4d20 2742 s.type = IPPROTO_TCP;
82d73ea0
DA		 2743
2744 if (f && f->f && run_ssfilter(f->f, &s) == 0)
2745 continue;
2746
4b45ae22
PS		 2747 err2 = inet_show_sock(h, &s);
2748 if (err2 < 0) {
2749 err = err2;
2750 break;
2751 }
aba5acdf 2752 }
4b45ae22
PS		 2753
2754 fclose(fp);
2755 return err;
aba5acdf
SH		 2756}
2757
ab01dbbb 2758static int tcp_show(struct filter *f, int socktype)
aba5acdf 2759{
ab01dbbb 2760 FILE *fp = NULL;
aba5acdf
SH		 2761 char *buf = NULL;
2762 int bufsize = 64*1024;
2763
1527a17e
VK		 2764 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2765 return 0;
2766
aba5acdf
SH		 2767 dg_proto = TCP_PROTO;
2768
2769 if (getenv("TCPDIAG_FILE"))
2770 return tcp_show_netlink_file(f);
2771
2772 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
3fe5b534 2773 && inet_show_netlink(f, NULL, socktype) == 0)
aba5acdf
SH		 2774 return 0;
2775
2776 /* Sigh... We have to parse /proc/net/tcp... */
2777
ab01dbbb 2778
aba5acdf
SH		 2779 /* Estimate amount of sockets and try to allocate
2780 * huge buffer to read all the table at one read.
2781 * Limit it by 16MB though. The assumption is: as soon as
2782 * kernel was able to hold information about N connections,
2783 * it is able to give us some memory for snapshot.
2784 */
2785 if (1) {
a221d621
BL		 2786 get_slabstat(&slabstat);
2787
aba5acdf 2788 int guess = slabstat.socks+slabstat.tcp_syns;
acd1e437 2789
aba5acdf
SH		 2790 if (f->states&(1<<SS_TIME_WAIT))
2791 guess += slabstat.tcp_tws;
2792 if (guess > (16*1024*1024)/128)
2793 guess = (16*1024*1024)/128;
2794 guess *= 128;
2795 if (guess > bufsize)
2796 bufsize = guess;
2797 }
2798 while (bufsize >= 64*1024) {
2799 if ((buf = malloc(bufsize)) != NULL)
2800 break;
2801 bufsize /= 2;
2802 }
2803 if (buf == NULL) {
2804 errno = ENOMEM;
2805 return -1;
2806 }
2807
2808 if (f->families & (1<<AF_INET)) {
69cae645 2809 if ((fp = net_tcp_open()) == NULL)
aba5acdf 2810 goto outerr;
ab01dbbb
SH		 2811
2812 setbuffer(fp, buf, bufsize);
2813 if (generic_record_read(fp, tcp_show_line, f, AF_INET))
aba5acdf 2814 goto outerr;
ab01dbbb 2815 fclose(fp);
aba5acdf
SH		 2816 }
2817
2818 if ((f->families & (1<<AF_INET6)) &&
69cae645 2819 (fp = net_tcp6_open()) != NULL) {
ab01dbbb
SH		 2820 setbuffer(fp, buf, bufsize);
2821 if (generic_record_read(fp, tcp_show_line, f, AF_INET6))
aba5acdf 2822 goto outerr;
ab01dbbb 2823 fclose(fp);
aba5acdf
SH		 2824 }
2825
2826 free(buf);
2827 return 0;
2828
2829outerr:
2830 do {
2831 int saved_errno = errno;
acd1e437 2832
92de1c2c 2833 free(buf);
ab01dbbb
SH		 2834 if (fp)
2835 fclose(fp);
aba5acdf
SH		 2836 errno = saved_errno;
2837 return -1;
2838 } while (0);
2839}
2840
f89d46ad
PS		 2841static int sctp_show(struct filter *f)
2842{
2843 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2844 return 0;
2845
2846 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
2847 && inet_show_netlink(f, NULL, IPPROTO_SCTP) == 0)
2848 return 0;
2849
2850 return 0;
2851}
aba5acdf 2852
d1f28cf1 2853static int dgram_show_line(char *line, const struct filter *f, int family)
aba5acdf 2854{
055840f2 2855 struct sockstat s = {};
aba5acdf
SH		 2856 char *loc, *rem, *data;
2857 char opt[256];
2858 int n;
aba5acdf 2859
8250bc9f 2860 if (proc_inet_split_line(line, &loc, &rem, &data))
aba5acdf 2861 return -1;
aba5acdf 2862
8250bc9f 2863 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2864
8250bc9f
VK		 2865 if (!(f->states & (1 << state)))
2866 return 0;
aba5acdf 2867
8250bc9f 2868 proc_parse_inet_addr(loc, rem, family, &s);
aba5acdf
SH		 2869
2870 if (f->f && run_ssfilter(f->f, &s) == 0)
2871 return 0;
2872
2873 opt[0] = 0;
e7113c61 2874 n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
aba5acdf
SH		 2875 &s.state, &s.wq, &s.rq,
2876 &s.uid, &s.ino,
2877 &s.refcnt, &s.sk, opt);
2878
2879 if (n < 9)
2880 opt[0] = 0;
2881
be7e4d20
PS		 2882 s.type = dg_proto == UDP_PROTO ? IPPROTO_UDP : 0;
2883 inet_stats_print(&s);
aba5acdf 2884
f1b39e1b
VK		 2885 if (show_details && opt[0])
2886 printf(" opt:\"%s\"", opt);
aba5acdf 2887
8250bc9f 2888 printf("\n");
aba5acdf
SH		 2889 return 0;
2890}
2891
d1f28cf1 2892static int udp_show(struct filter *f)
aba5acdf 2893{
ab01dbbb 2894 FILE *fp = NULL;
aba5acdf 2895
1527a17e
VK		 2896 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2897 return 0;
2898
ace5cb31
VK		 2899 dg_proto = UDP_PROTO;
2900
346f8ca8
PE		 2901 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
2902 && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0)
2903 return 0;
2904
aba5acdf 2905 if (f->families&(1<<AF_INET)) {
69cae645 2906 if ((fp = net_udp_open()) == NULL)
aba5acdf 2907 goto outerr;
ab01dbbb 2908 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2909 goto outerr;
ab01dbbb 2910 fclose(fp);
aba5acdf
SH		 2911 }
2912
2913 if ((f->families&(1<<AF_INET6)) &&
69cae645 2914 (fp = net_udp6_open()) != NULL) {
ab01dbbb 2915 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2916 goto outerr;
ab01dbbb 2917 fclose(fp);
aba5acdf
SH		 2918 }
2919 return 0;
2920
2921outerr:
2922 do {
2923 int saved_errno = errno;
acd1e437 2924
ab01dbbb
SH		 2925 if (fp)
2926 fclose(fp);
aba5acdf
SH		 2927 errno = saved_errno;
2928 return -1;
2929 } while (0);
2930}
2931
d1f28cf1 2932static int raw_show(struct filter *f)
aba5acdf 2933{
ab01dbbb 2934 FILE *fp = NULL;
aba5acdf 2935
1527a17e
VK		 2936 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2937 return 0;
2938
aba5acdf
SH		 2939 dg_proto = RAW_PROTO;
2940
41fe6c34
CG		 2941 if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") &&
2942 inet_show_netlink(f, NULL, IPPROTO_RAW) == 0)
2943 return 0;
2944
aba5acdf 2945 if (f->families&(1<<AF_INET)) {
69cae645 2946 if ((fp = net_raw_open()) == NULL)
aba5acdf 2947 goto outerr;
ab01dbbb 2948 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2949 goto outerr;
ab01dbbb 2950 fclose(fp);
aba5acdf
SH		 2951 }
2952
2953 if ((f->families&(1<<AF_INET6)) &&
69cae645 2954 (fp = net_raw6_open()) != NULL) {
ab01dbbb 2955 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2956 goto outerr;
ab01dbbb 2957 fclose(fp);
aba5acdf
SH		 2958 }
2959 return 0;
2960
2961outerr:
2962 do {
2963 int saved_errno = errno;
acd1e437 2964
ab01dbbb
SH		 2965 if (fp)
2966 fclose(fp);
aba5acdf
SH		 2967 errno = saved_errno;
2968 return -1;
2969 } while (0);
2970}
2971
ec4d0d8a 2972#define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
aba5acdf 2973
2d0e538f 2974static void unix_list_drop_first(struct sockstat **list)
aba5acdf 2975{
2d0e538f 2976 struct sockstat *s = *list;
ec4d0d8a 2977
2d0e538f
PS		 2978 (*list) = (*list)->next;
2979 free(s->name);
2980 free(s);
aba5acdf
SH		 2981}
2982
ec4d0d8a 2983static bool unix_type_skip(struct sockstat *s, struct filter *f)
bf4ceee6
VK		 2984{
2985 if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
2986 return true;
2987 if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
2988 return true;
2989 if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
2990 return true;
2991 return false;
2992}
2993
2d0e538f 2994static void unix_stats_print(struct sockstat *s, struct filter *f)
aba5acdf 2995{
b217df10 2996 char port_name[30] = {};
aba5acdf 2997
2d0e538f 2998 sock_state_print(s);
2d791bc8 2999
2d0e538f
PS		 3000 sock_addr_print(s->name ?: "*", " ",
3001 int_to_str(s->lport, port_name), NULL);
3002 sock_addr_print(s->peer_name ?: "*", " ",
3003 int_to_str(s->rport, port_name), NULL);
116ac927 3004
2d0e538f 3005 proc_ctx_print(s);
aba5acdf
SH		 3006}
3007
8a4025f6 3008static int unix_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh,
3009 void *arg)
dfbaa90d 3010{
8a4025f6 3011 struct filter *f = (struct filter *)arg;
dfbaa90d
PE		 3012 struct unix_diag_msg *r = NLMSG_DATA(nlh);
3013 struct rtattr *tb[UNIX_DIAG_MAX+1];
99bb68ff
VK		 3014 char name[128];
3015 struct sockstat stat = { .name = "*", .peer_name = "*" };
dfbaa90d 3016
acd1e437 3017 parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr *)(r+1),
dfbaa90d
PE		 3018 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3019
bf4ceee6
VK		 3020 stat.type = r->udiag_type;
3021 stat.state = r->udiag_state;
ec4d0d8a
VK		 3022 stat.ino = stat.lport = r->udiag_ino;
3023 stat.local.family = stat.remote.family = AF_UNIX;
0d2e01c5 3024
bf4ceee6
VK		 3025 if (unix_type_skip(&stat, f))
3026 return 0;
dfbaa90d 3027
defd61ca
HFS		 3028 if (tb[UNIX_DIAG_RQLEN]) {
3029 struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]);
acd1e437 3030
bf4ceee6
VK		 3031 stat.rq = rql->udiag_rqueue;
3032 stat.wq = rql->udiag_wqueue;
defd61ca 3033 }
dfbaa90d
PE		 3034 if (tb[UNIX_DIAG_NAME]) {
3035 int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
3036
3037 memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
3038 name[len] = '\0';
1dd0cca7
SH		 3039 if (name[0] == '\0') {
3040 int i;
3041 for (i = 0; i < len; i++)
878dadc7
IB		 3042 if (name[i] == '\0')
3043 name[i] = '@';
1dd0cca7 3044 }
99bb68ff
VK		 3045 stat.name = &name[0];
3046 memcpy(stat.local.data, &stat.name, sizeof(stat.name));
bf4ceee6 3047 }
dfbaa90d 3048 if (tb[UNIX_DIAG_PEER])
ec4d0d8a 3049 stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]);
dfbaa90d 3050
29999b0f
VK		 3051 if (f->f && run_ssfilter(f->f, &stat) == 0)
3052 return 0;
3053
bf4ceee6 3054 unix_stats_print(&stat, f);
dfbaa90d 3055
45199997 3056 if (show_mem)
51ff9f24 3057 print_skmeminfo(tb, UNIX_DIAG_MEMINFO);
5b816047
PE		 3058 if (show_details) {
3059 if (tb[UNIX_DIAG_SHUTDOWN]) {
3060 unsigned char mask;
acd1e437 3061
9f1370c0 3062 mask = rta_getattr_u8(tb[UNIX_DIAG_SHUTDOWN]);
5b816047
PE		 3063 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
3064 }
3065 }
2d0e538f 3066 printf("\n");
ec4d0d8a 3067
dfbaa90d
PE		 3068 return 0;
3069}
3070
8a4025f6 3071static int handle_netlink_request(struct filter *f, struct nlmsghdr *req,
3072 size_t size, rtnl_filter_t show_one_sock)
dfbaa90d 3073{
8a4025f6 3074 int ret = -1;
3075 struct rtnl_handle rth;
dfbaa90d 3076
8a4025f6 3077 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
dfbaa90d
PE		 3078 return -1;
3079
8a4025f6 3080 rth.dump = MAGIC_SEQ;
dfbaa90d 3081
8a4025f6 3082 if (rtnl_send(&rth, req, size) < 0)
3083 goto Exit;
dfbaa90d 3084
8a4025f6 3085 if (rtnl_dump_filter(&rth, show_one_sock, f))
3086 goto Exit;
dfbaa90d 3087
8a4025f6 3088 ret = 0;
3089Exit:
3090 rtnl_close(&rth);
3091 return ret;
dfbaa90d
PE		 3092}
3093
8a4025f6 3094static int unix_show_netlink(struct filter *f)
d8402b96 3095{
5fb421d4 3096 DIAG_REQUEST(req, struct unix_diag_req r);
d8402b96
AV		 3097
3098 req.r.sdiag_family = AF_UNIX;
3099 req.r.udiag_states = f->states;
3100 req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
3101 if (show_mem)
3102 req.r.udiag_show |= UDIAG_SHOW_MEMINFO;
3103
8a4025f6 3104 return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock);
d8402b96
AV		 3105}
3106
d1f28cf1 3107static int unix_show(struct filter *f)
aba5acdf
SH		 3108{
3109 FILE *fp;
3110 char buf[256];
3111 char name[128];
3112 int newformat = 0;
3113 int cnt;
ec4d0d8a 3114 struct sockstat *list = NULL;
96d45daa
PS		 3115 const int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT,
3116 SS_ESTABLISHED, SS_CLOSING };
aba5acdf 3117
9db7bf15
VK		 3118 if (!filter_af_get(f, AF_UNIX))
3119 return 0;
3120
f25062e9
PS		 3121 if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT")
3122 && unix_show_netlink(f) == 0)
dfbaa90d
PE		 3123 return 0;
3124
ab01dbbb 3125 if ((fp = net_unix_open()) == NULL)
aba5acdf 3126 return -1;
61170fd8 3127 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3128 fclose(fp);
3129 return -1;
3130 }
aba5acdf 3131
ae665a52 3132 if (memcmp(buf, "Peer", 4) == 0)
aba5acdf
SH		 3133 newformat = 1;
3134 cnt = 0;
3135
61170fd8 3136 while (fgets(buf, sizeof(buf), fp)) {
ec4d0d8a 3137 struct sockstat *u, **insp;
aba5acdf
SH		 3138 int flags;
3139
0ee9052f 3140 if (!(u = calloc(1, sizeof(*u))))
aba5acdf 3141 break;
aba5acdf
SH		 3142
3143 if (sscanf(buf, "%x: %x %x %x %x %x %d %s",
ec4d0d8a 3144 &u->rport, &u->rq, &u->wq, &flags, &u->type,
aba5acdf
SH		 3145 &u->state, &u->ino, name) < 8)
3146 name[0] = 0;
3147
ec4d0d8a
VK		 3148 u->lport = u->ino;
3149 u->local.family = u->remote.family = AF_UNIX;
3150
3151 if (flags & (1 << 16)) {
aba5acdf
SH		 3152 u->state = SS_LISTEN;
3153 } else {
3154 u->state = unix_state_map[u->state-1];
ec4d0d8a 3155 if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport)
aba5acdf
SH		 3156 u->state = SS_ESTABLISHED;
3157 }
2d0e538f
PS		 3158 if (unix_type_skip(u, f) ||
3159 !(f->states & (1 << u->state))) {
3160 free(u);
3161 continue;
3162 }
aba5acdf
SH		 3163
3164 if (!newformat) {
ec4d0d8a 3165 u->rport = 0;
aba5acdf
SH		 3166 u->rq = 0;
3167 u->wq = 0;
3168 }
3169
2d0e538f
PS		 3170 if (name[0]) {
3171 u->name = strdup(name);
46131577
PS		 3172 if (!u->name) {
3173 free(u);
2d0e538f 3174 break;
46131577 3175 }
2d0e538f
PS		 3176 }
3177
3178 if (u->rport) {
3179 struct sockstat *p;
3180
3181 for (p = list; p; p = p->next) {
3182 if (u->rport == p->lport)
3183 break;
3184 }
3185 if (!p)
3186 u->peer_name = "?";
3187 else
3188 u->peer_name = p->name ? : "*";
3189 }
3190
3191 if (f->f) {
3192 struct sockstat st = {
3193 .local.family = AF_UNIX,
3194 .remote.family = AF_UNIX,
3195 };
3196
3197 memcpy(st.local.data, &u->name, sizeof(u->name));
3198 if (strcmp(u->peer_name, "*"))
3199 memcpy(st.remote.data, &u->peer_name,
3200 sizeof(u->peer_name));
3201 if (run_ssfilter(f->f, &st) == 0) {
3202 free(u->name);
3203 free(u);
3204 continue;
3205 }
3206 }
3207
aba5acdf
SH		 3208 insp = &list;
3209 while (*insp) {
3210 if (u->type < (*insp)->type ||
3211 (u->type == (*insp)->type &&
3212 u->ino < (*insp)->ino))
3213 break;
3214 insp = &(*insp)->next;
3215 }
3216 u->next = *insp;
3217 *insp = u;
3218
aba5acdf 3219 if (++cnt > MAX_UNIX_REMEMBER) {
2d0e538f
PS		 3220 while (list) {
3221 unix_stats_print(list, f);
3222 printf("\n");
3223
3224 unix_list_drop_first(&list);
3225 }
aba5acdf
SH		 3226 cnt = 0;
3227 }
3228 }
a3fd8e58 3229 fclose(fp);
2d0e538f 3230 while (list) {
bf4ceee6 3231 unix_stats_print(list, f);
2d0e538f
PS		 3232 printf("\n");
3233
3234 unix_list_drop_first(&list);
aba5acdf
SH		 3235 }
3236
3237 return 0;
3238}
3239
89f634f9 3240static int packet_stats_print(struct sockstat *s, const struct filter *f)
4a0053b6 3241{
b217df10
VK		 3242 const char *addr, *port;
3243 char ll_name[16];
372c30d2 3244
be7e4d20
PS		 3245 s->local.family = s->remote.family = AF_PACKET;
3246
4a0053b6 3247 if (f->f) {
89f634f9 3248 s->local.data[0] = s->prot;
89f634f9 3249 if (run_ssfilter(f->f, s) == 0)
4a0053b6
VK		 3250 return 1;
3251 }
372c30d2 3252
be7e4d20 3253 sock_state_print(s);
372c30d2 3254
b217df10
VK		 3255 if (s->prot == 3)
3256 addr = "*";
3257 else
3258 addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name));
3259
3260 if (s->iface == 0)
3261 port = "*";
3262 else
3263 port = xll_index_to_name(s->iface);
372c30d2 3264
b217df10
VK		 3265 sock_addr_print(addr, ":", port, NULL);
3266 sock_addr_print("", "*", "", NULL);
116ac927 3267
5f27ac1d 3268 proc_ctx_print(s);
116ac927 3269
f1b39e1b
VK		 3270 if (show_details)
3271 sock_details_print(s);
3272
4a0053b6
VK		 3273 return 0;
3274}
3275
2631b856
VK		 3276static void packet_show_ring(struct packet_diag_ring *ring)
3277{
3278 printf("blk_size:%d", ring->pdr_block_size);
3279 printf(",blk_nr:%d", ring->pdr_block_nr);
3280 printf(",frm_size:%d", ring->pdr_frame_size);
3281 printf(",frm_nr:%d", ring->pdr_frame_nr);
3282 printf(",tmo:%d", ring->pdr_retire_tmo);
3283 printf(",features:0x%x", ring->pdr_features);
3284}
3285
4a0053b6
VK		 3286static int packet_show_sock(const struct sockaddr_nl *addr,
3287 struct nlmsghdr *nlh, void *arg)
3288{
3289 const struct filter *f = arg;
3290 struct packet_diag_msg *r = NLMSG_DATA(nlh);
2631b856
VK		 3291 struct packet_diag_info *pinfo = NULL;
3292 struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL;
4a0053b6 3293 struct rtattr *tb[PACKET_DIAG_MAX+1];
89f634f9 3294 struct sockstat stat = {};
2631b856
VK		 3295 uint32_t fanout = 0;
3296 bool has_fanout = false;
4a0053b6 3297
acd1e437 3298 parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr *)(r+1),
4a0053b6
VK		 3299 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3300
3301 /* use /proc/net/packet if all info are not available */
3302 if (!tb[PACKET_DIAG_MEMINFO])
3303 return -1;
3304
2d791bc8
VK		 3305 stat.type = r->pdiag_type;
3306 stat.prot = r->pdiag_num;
3307 stat.ino = r->pdiag_ino;
3308 stat.state = SS_CLOSE;
f1b39e1b 3309 stat.sk = cookie_sk_get(&r->pdiag_cookie[0]);
4a0053b6
VK		 3310
3311 if (tb[PACKET_DIAG_MEMINFO]) {
3312 __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]);
acd1e437 3313
4a0053b6
VK		 3314 stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3315 }
3316
3317 if (tb[PACKET_DIAG_INFO]) {
2631b856 3318 pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
2d791bc8 3319 stat.lport = stat.iface = pinfo->pdi_index;
4a0053b6
VK		 3320 }
3321
f1b39e1b 3322 if (tb[PACKET_DIAG_UID])
9f1370c0 3323 stat.uid = rta_getattr_u32(tb[PACKET_DIAG_UID]);
f1b39e1b 3324
2631b856
VK		 3325 if (tb[PACKET_DIAG_RX_RING])
3326 ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]);
3327
3328 if (tb[PACKET_DIAG_TX_RING])
3329 ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]);
3330
3331 if (tb[PACKET_DIAG_FANOUT]) {
3332 has_fanout = true;
9f1370c0 3333 fanout = rta_getattr_u32(tb[PACKET_DIAG_FANOUT]);
2631b856
VK		 3334 }
3335
4a0053b6
VK		 3336 if (packet_stats_print(&stat, f))
3337 return 0;
3338
2631b856
VK		 3339 if (show_details) {
3340 if (pinfo) {
3341 printf("\n\tver:%d", pinfo->pdi_version);
3342 printf(" cpy_thresh:%d", pinfo->pdi_copy_thresh);
3343 printf(" flags( ");
3344 if (pinfo->pdi_flags & PDI_RUNNING)
3345 printf("running");
3346 if (pinfo->pdi_flags & PDI_AUXDATA)
3347 printf(" auxdata");
3348 if (pinfo->pdi_flags & PDI_ORIGDEV)
3349 printf(" origdev");
3350 if (pinfo->pdi_flags & PDI_VNETHDR)
3351 printf(" vnethdr");
3352 if (pinfo->pdi_flags & PDI_LOSS)
3353 printf(" loss");
3354 if (!pinfo->pdi_flags)
3355 printf("0");
3356 printf(" )");
3357 }
3358 if (ring_rx) {
3359 printf("\n\tring_rx(");
3360 packet_show_ring(ring_rx);
3361 printf(")");
3362 }
3363 if (ring_tx) {
3364 printf("\n\tring_tx(");
3365 packet_show_ring(ring_tx);
3366 printf(")");
3367 }
3368 if (has_fanout) {
3369 uint16_t type = (fanout >> 16) & 0xffff;
3370
3371 printf("\n\tfanout(");
3372 printf("id:%d,", fanout & 0xffff);
3373 printf("type:");
3374
3375 if (type == 0)
3376 printf("hash");
3377 else if (type == 1)
3378 printf("lb");
3379 else if (type == 2)
3380 printf("cpu");
3381 else if (type == 3)
3382 printf("roll");
3383 else if (type == 4)
3384 printf("random");
3385 else if (type == 5)
3386 printf("qm");
3387 else
3388 printf("0x%x", type);
3389
3390 printf(")");
3391 }
3392 }
3393
372c30d2
ND		 3394 if (show_bpf && tb[PACKET_DIAG_FILTER]) {
3395 struct sock_filter *fil =
3396 RTA_DATA(tb[PACKET_DIAG_FILTER]);
3397 int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) /
3398 sizeof(struct sock_filter);
3399
3400 printf("\n\tbpf filter (%d): ", num);
3401 while (num) {
3402 printf(" 0x%02x %u %u %u,",
3403 fil->code, fil->jt, fil->jf, fil->k);
3404 num--;
3405 fil++;
3406 }
3407 }
3408 printf("\n");
3409 return 0;
3410}
3411
8a4025f6 3412static int packet_show_netlink(struct filter *f)
372c30d2 3413{
5fb421d4 3414 DIAG_REQUEST(req, struct packet_diag_req r);
372c30d2 3415
372c30d2 3416 req.r.sdiag_family = AF_PACKET;
2631b856
VK		 3417 req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO |
3418 PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT;
372c30d2 3419
8a4025f6 3420 return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock);
372c30d2
ND		 3421}
3422
4a0053b6
VK		 3423static int packet_show_line(char *buf, const struct filter *f, int fam)
3424{
3425 unsigned long long sk;
89f634f9 3426 struct sockstat stat = {};
4a0053b6
VK		 3427 int type, prot, iface, state, rq, uid, ino;
3428
3429 sscanf(buf, "%llx %*d %d %x %d %d %u %u %u",
3430 &sk,
3431 &type, &prot, &iface, &state,
3432 &rq, &uid, &ino);
3433
3434 if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB)))
3435 return 0;
3436 if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB)))
3437 return 0;
3438
3439 stat.type = type;
3440 stat.prot = prot;
2d791bc8 3441 stat.lport = stat.iface = iface;
4a0053b6
VK		 3442 stat.state = state;
3443 stat.rq = rq;
3444 stat.uid = uid;
3445 stat.ino = ino;
2d791bc8
VK		 3446 stat.state = SS_CLOSE;
3447
4a0053b6
VK		 3448 if (packet_stats_print(&stat, f))
3449 return 0;
3450
4a0053b6
VK		 3451 printf("\n");
3452 return 0;
3453}
aba5acdf 3454
d1f28cf1 3455static int packet_show(struct filter *f)
aba5acdf
SH		 3456{
3457 FILE *fp;
b95d28c3 3458 int rc = 0;
3d0b7439 3459
9db7bf15 3460 if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE)))
b9ea445d 3461 return 0;
aba5acdf 3462
4a0053b6
VK		 3463 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
3464 packet_show_netlink(f) == 0)
372c30d2
ND		 3465 return 0;
3466
ab01dbbb 3467 if ((fp = net_packet_open()) == NULL)
aba5acdf 3468 return -1;
4a0053b6 3469 if (generic_record_read(fp, packet_show_line, f, AF_PACKET))
b95d28c3 3470 rc = -1;
aba5acdf 3471
b95d28c3
PS		 3472 fclose(fp);
3473 return rc;
aba5acdf
SH		 3474}
3475
5f24ec0e 3476static int netlink_show_one(struct filter *f,
acd1e437
SH		 3477 int prot, int pid, unsigned int groups,
3478 int state, int dst_pid, unsigned int dst_group,
129709ae
AV		 3479 int rq, int wq,
3480 unsigned long long sk, unsigned long long cb)
3481{
2d791bc8 3482 struct sockstat st;
acd1e437 3483
b217df10
VK		 3484 SPRINT_BUF(prot_buf) = {};
3485 const char *prot_name;
3486 char procname[64] = {};
eef43b50 3487
2d791bc8
VK		 3488 st.state = SS_CLOSE;
3489 st.rq = rq;
3490 st.wq = wq;
be7e4d20 3491 st.local.family = st.remote.family = AF_NETLINK;
2d791bc8 3492
129709ae 3493 if (f->f) {
055840f2
VK		 3494 st.rport = -1;
3495 st.lport = pid;
3496 st.local.data[0] = prot;
055840f2 3497 if (run_ssfilter(f->f, &st) == 0)
5f24ec0e 3498 return 1;
129709ae
AV		 3499 }
3500
be7e4d20 3501 sock_state_print(&st);
eef43b50 3502
b217df10
VK		 3503 if (resolve_services)
3504 prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf));
3505 else
3506 prot_name = int_to_str(prot, prot_buf);
eef43b50 3507
129709ae 3508 if (pid == -1) {
b217df10 3509 procname[0] = '*';
129709ae
AV		 3510 } else if (resolve_services) {
3511 int done = 0;
acd1e437 3512
129709ae
AV		 3513 if (!pid) {
3514 done = 1;
b217df10 3515 strncpy(procname, "kernel", 6);
129709ae 3516 } else if (pid > 0) {
129709ae 3517 FILE *fp;
acd1e437 3518
0ee9052f 3519 snprintf(procname, sizeof(procname), "%s/%d/stat",
129709ae
AV		 3520 getenv("PROC_ROOT") ? : "/proc", pid);
3521 if ((fp = fopen(procname, "r")) != NULL) {
3522 if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
0ee9052f 3523 snprintf(procname+strlen(procname),
3524 sizeof(procname)-strlen(procname),
3525 "/%d", pid);
129709ae
AV		 3526 done = 1;
3527 }
3528 fclose(fp);
3529 }
3530 }
3531 if (!done)
b217df10 3532 int_to_str(pid, procname);
129709ae 3533 } else {
b217df10 3534 int_to_str(pid, procname);
129709ae 3535 }
f271fe01 3536
b217df10
VK		 3537 sock_addr_print(prot_name, ":", procname, NULL);
3538
f271fe01 3539 if (state == NETLINK_CONNECTED) {
b217df10
VK		 3540 char dst_group_buf[30];
3541 char dst_pid_buf[30];
acd1e437 3542
b217df10
VK		 3543 sock_addr_print(int_to_str(dst_group, dst_group_buf), ":",
3544 int_to_str(dst_pid, dst_pid_buf), NULL);
f271fe01 3545 } else {
b217df10 3546 sock_addr_print("", "*", "", NULL);
f271fe01 3547 }
129709ae 3548
116ac927 3549 char *pid_context = NULL;
acd1e437 3550
116ac927
RH		 3551 if (show_proc_ctx) {
3552 /* The pid value will either be:
3553 * 0 if destination kernel - show kernel initial context.
3554 * A valid process pid - use getpidcon.
3555 * A unique value allocated by the kernel or netlink user
3556 * to the process - show context as "not available".
3557 */
3558 if (!pid)
3559 security_get_initial_context("kernel", &pid_context);
3560 else if (pid > 0)
3561 getpidcon(pid, &pid_context);
3562
3563 if (pid_context != NULL) {
3564 printf("proc_ctx=%-*s ", serv_width, pid_context);
3565 free(pid_context);
3566 } else {
3567 printf("proc_ctx=%-*s ", serv_width, "unavailable");
3568 }
3569 }
3570
129709ae
AV		 3571 if (show_details) {
3572 printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups);
3573 }
3574 printf("\n");
3575
5f24ec0e 3576 return 0;
129709ae
AV		 3577}
3578
8a4025f6 3579static int netlink_show_sock(const struct sockaddr_nl *addr,
3580 struct nlmsghdr *nlh, void *arg)
ecb928c8 3581{
8a4025f6 3582 struct filter *f = (struct filter *)arg;
ecb928c8
AV		 3583 struct netlink_diag_msg *r = NLMSG_DATA(nlh);
3584 struct rtattr *tb[NETLINK_DIAG_MAX+1];
3585 int rq = 0, wq = 0;
3586 unsigned long groups = 0;
3587
acd1e437 3588 parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr *)(r+1),
ecb928c8
AV		 3589 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3590
3591 if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS]))
3592 groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]);
3593
3594 if (tb[NETLINK_DIAG_MEMINFO]) {
3595 const __u32 *skmeminfo;
acd1e437 3596
ecb928c8
AV		 3597 skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]);
3598
3599 rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3600 wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC];
3601 }
3602
5f24ec0e 3603 if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups,
ecb928c8 3604 r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group,
5f24ec0e
VK		 3605 rq, wq, 0, 0)) {
3606 return 0;
3607 }
ecb928c8
AV		 3608
3609 if (show_mem) {
3610 printf("\t");
3611 print_skmeminfo(tb, NETLINK_DIAG_MEMINFO);
3612 printf("\n");
3613 }
3614
3615 return 0;
3616}
3617
8a4025f6 3618static int netlink_show_netlink(struct filter *f)
ecb928c8 3619{
5fb421d4 3620 DIAG_REQUEST(req, struct netlink_diag_req r);
ecb928c8
AV		 3621
3622 req.r.sdiag_family = AF_NETLINK;
3623 req.r.sdiag_protocol = NDIAG_PROTO_ALL;
3624 req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO;
3625
8a4025f6 3626 return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock);
ecb928c8
AV		 3627}
3628
d1f28cf1 3629static int netlink_show(struct filter *f)
aba5acdf
SH		 3630{
3631 FILE *fp;
3632 char buf[256];
3633 int prot, pid;
acd1e437 3634 unsigned int groups;
aba5acdf
SH		 3635 int rq, wq, rc;
3636 unsigned long long sk, cb;
3637
9db7bf15 3638 if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE)))
b9ea445d
VK		 3639 return 0;
3640
129709ae 3641 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
8a4025f6 3642 netlink_show_netlink(f) == 0)
129709ae
AV		 3643 return 0;
3644
ab01dbbb 3645 if ((fp = net_netlink_open()) == NULL)
aba5acdf 3646 return -1;
61170fd8 3647 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3648 fclose(fp);
3649 return -1;
3650 }
aba5acdf 3651
61170fd8 3652 while (fgets(buf, sizeof(buf), fp)) {
aba5acdf
SH		 3653 sscanf(buf, "%llx %d %d %x %d %d %llx %d",
3654 &sk,
3655 &prot, &pid, &groups, &rq, &wq, &cb, &rc);
3656
f271fe01 3657 netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb);
aba5acdf
SH		 3658 }
3659
b95d28c3 3660 fclose(fp);
aba5acdf
SH		 3661 return 0;
3662}
3663
6885e3bf
CG		 3664struct sock_diag_msg {
3665 __u8 sdiag_family;
3666};
3667
3668static int generic_show_sock(const struct sockaddr_nl *addr,
3669 struct nlmsghdr *nlh, void *arg)
3670{
3671 struct sock_diag_msg *r = NLMSG_DATA(nlh);
3672 struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX };
3673
3674 switch (r->sdiag_family) {
3675 case AF_INET:
3676 case AF_INET6:
3677 return show_one_inet_sock(addr, nlh, &inet_arg);
3678 case AF_UNIX:
3679 return unix_show_sock(addr, nlh, arg);
3680 case AF_PACKET:
3681 return packet_show_sock(addr, nlh, arg);
3682 case AF_NETLINK:
3683 return netlink_show_sock(addr, nlh, arg);
3684 default:
3685 return -1;
3686 }
3687}
3688
3689static int handle_follow_request(struct filter *f)
3690{
6b224dad 3691 int ret = 0;
6885e3bf
CG		 3692 int groups = 0;
3693 struct rtnl_handle rth;
3694
3695 if (f->families & (1 << AF_INET) && f->dbs & (1 << TCP_DB))
3696 groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1);
3697 if (f->families & (1 << AF_INET) && f->dbs & (1 << UDP_DB))
3698 groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1);
3699 if (f->families & (1 << AF_INET6) && f->dbs & (1 << TCP_DB))
3700 groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1);
3701 if (f->families & (1 << AF_INET6) && f->dbs & (1 << UDP_DB))
3702 groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1);
3703
3704 if (groups == 0)
3705 return -1;
3706
3707 if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG))
3708 return -1;
3709
3710 rth.dump = 0;
3711 rth.local.nl_pid = 0;
3712
3713 if (rtnl_dump_filter(&rth, generic_show_sock, f))
6b224dad 3714 ret = -1;
6885e3bf 3715
6885e3bf
CG		 3716 rtnl_close(&rth);
3717 return ret;
3718}
3719
d1f28cf1 3720static int get_snmp_int(char *proto, char *key, int *result)
aba5acdf
SH		 3721{
3722 char buf[1024];
3723 FILE *fp;
3724 int protolen = strlen(proto);
3725 int keylen = strlen(key);
3726
3727 *result = 0;
3728
ab01dbbb 3729 if ((fp = net_snmp_open()) == NULL)
aba5acdf
SH		 3730 return -1;
3731
3732 while (fgets(buf, sizeof(buf), fp) != NULL) {
3733 char *p = buf;
3734 int pos = 0;
acd1e437 3735
aba5acdf
SH		 3736 if (memcmp(buf, proto, protolen))
3737 continue;
3738 while ((p = strchr(p, ' ')) != NULL) {
3739 pos++;
3740 p++;
3741 if (memcmp(p, key, keylen) == 0 &&
3742 (p[keylen] == ' ' || p[keylen] == '\n'))
3743 break;
3744 }
3745 if (fgets(buf, sizeof(buf), fp) == NULL)
3746 break;
3747 if (memcmp(buf, proto, protolen))
3748 break;
3749 p = buf;
3750 while ((p = strchr(p, ' ')) != NULL) {
3751 p++;
3752 if (--pos == 0) {
3753 sscanf(p, "%d", result);
3754 fclose(fp);
3755 return 0;
3756 }
3757 }
3758 }
3759
3760 fclose(fp);
3761 errno = ESRCH;
3762 return -1;
3763}
3764
3765
3766/* Get stats from sockstat */
3767
acd1e437 3768struct ssummary {
aba5acdf
SH		 3769 int socks;
3770 int tcp_mem;
3771 int tcp_total;
3772 int tcp_orphans;
3773 int tcp_tws;
3774 int tcp4_hashed;
3775 int udp4;
3776 int raw4;
3777 int frag4;
3778 int frag4_mem;
3779 int tcp6_hashed;
3780 int udp6;
3781 int raw6;
3782 int frag6;
3783 int frag6_mem;
3784};
3785
055840f2 3786static void get_sockstat_line(char *line, struct ssummary *s)
aba5acdf
SH		 3787{
3788 char id[256], rem[256];
3789
3790 if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2)
3791 return;
3792
3793 if (strcmp(id, "sockets:") == 0)
3794 sscanf(rem, "%*s%d", &s->socks);
3795 else if (strcmp(id, "UDP:") == 0)
3796 sscanf(rem, "%*s%d", &s->udp4);
3797 else if (strcmp(id, "UDP6:") == 0)
3798 sscanf(rem, "%*s%d", &s->udp6);
3799 else if (strcmp(id, "RAW:") == 0)
3800 sscanf(rem, "%*s%d", &s->raw4);
3801 else if (strcmp(id, "RAW6:") == 0)
3802 sscanf(rem, "%*s%d", &s->raw6);
3803 else if (strcmp(id, "TCP6:") == 0)
3804 sscanf(rem, "%*s%d", &s->tcp6_hashed);
3805 else if (strcmp(id, "FRAG:") == 0)
3806 sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem);
3807 else if (strcmp(id, "FRAG6:") == 0)
3808 sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem);
3809 else if (strcmp(id, "TCP:") == 0)
3810 sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d",
3811 &s->tcp4_hashed,
3812 &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem);
3813}
3814
055840f2 3815static int get_sockstat(struct ssummary *s)
aba5acdf
SH		 3816{
3817 char buf[256];
3818 FILE *fp;
3819
3820 memset(s, 0, sizeof(*s));
3821
ab01dbbb 3822 if ((fp = net_sockstat_open()) == NULL)
aba5acdf 3823 return -1;
acd1e437 3824 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3825 get_sockstat_line(buf, s);
3826 fclose(fp);
3827
ab01dbbb 3828 if ((fp = net_sockstat6_open()) == NULL)
aba5acdf 3829 return 0;
acd1e437 3830 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3831 get_sockstat_line(buf, s);
3832 fclose(fp);
3833
3834 return 0;
3835}
3836
d1f28cf1 3837static int print_summary(void)
aba5acdf 3838{
055840f2 3839 struct ssummary s;
2f938ce1 3840 int tcp_estab;
aba5acdf
SH		 3841
3842 if (get_sockstat(&s) < 0)
3843 perror("ss: get_sockstat");
2f938ce1 3844 if (get_snmp_int("Tcp:", "CurrEstab", &tcp_estab) < 0)
aba5acdf
SH		 3845 perror("ss: get_snmpstat");
3846
a221d621
BL		 3847 get_slabstat(&slabstat);
3848
aba5acdf
SH		 3849 printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks);
3850
3851 printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
3852 s.tcp_total + slabstat.tcp_syns + s.tcp_tws,
2f938ce1 3853 tcp_estab,
aba5acdf
SH		 3854 s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws),
3855 s.tcp_orphans,
3856 slabstat.tcp_syns,
3857 s.tcp_tws, slabstat.tcp_tws,
3858 slabstat.tcp_ports
3859 );
3860
3861 printf("\n");
3862 printf("Transport Total IP IPv6\n");
3863 printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-");
3864 printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6);
3865 printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6);
3866 printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed);
ae665a52 3867 printf("INET %-9d %-9d %-9d\n",
aba5acdf
SH		 3868 s.raw4+s.udp4+s.tcp4_hashed+
3869 s.raw6+s.udp6+s.tcp6_hashed,
3870 s.raw4+s.udp4+s.tcp4_hashed,
3871 s.raw6+s.udp6+s.tcp6_hashed);
3872 printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6);
3873
3874 printf("\n");
3875
3876 return 0;
3877}
3878
7a96e199 3879static void _usage(FILE *dest)
aba5acdf 3880{
7a96e199 3881 fprintf(dest,
aba5acdf
SH		 3882"Usage: ss [ OPTIONS ]\n"
3883" ss [ OPTIONS ] [ FILTER ]\n"
ff041f16
VK		 3884" -h, --help this message\n"
3885" -V, --version output version information\n"
3886" -n, --numeric don't resolve service names\n"
ab61159a 3887" -r, --resolve resolve host names\n"
ff041f16
VK		 3888" -a, --all display all sockets\n"
3889" -l, --listening display listening sockets\n"
ab61159a
SH		 3890" -o, --options show timer information\n"
3891" -e, --extended show detailed socket information\n"
3892" -m, --memory show socket memory usage\n"
ff041f16
VK		 3893" -p, --processes show process using socket\n"
3894" -i, --info show internal TCP information\n"
3895" -s, --summary show socket usage summary\n"
b0f01cf6 3896" -b, --bpf show bpf filter socket information\n"
6885e3bf 3897" -E, --events continually display sockets as they are destroyed\n"
ff041f16
VK		 3898" -Z, --context display process SELinux security contexts\n"
3899" -z, --contexts display process and socket SELinux security contexts\n"
95ce04bc 3900" -N, --net switch to the specified network namespace name\n"
ab61159a
SH		 3901"\n"
3902" -4, --ipv4 display only IP version 4 sockets\n"
3903" -6, --ipv6 display only IP version 6 sockets\n"
ff041f16
VK		 3904" -0, --packet display PACKET sockets\n"
3905" -t, --tcp display only TCP sockets\n"
f89d46ad 3906" -S, --sctp display only SCTP sockets\n"
ff041f16
VK		 3907" -u, --udp display only UDP sockets\n"
3908" -d, --dccp display only DCCP sockets\n"
3909" -w, --raw display only RAW sockets\n"
3910" -x, --unix display only Unix domain sockets\n"
ab61159a 3911" -f, --family=FAMILY display sockets of type FAMILY\n"
ebef3174 3912" FAMILY := {inet|inet6|link|unix|netlink|help}\n"
ab61159a 3913"\n"
fb2594c1 3914" -K, --kill forcibly close sockets, display what was closed\n"
7a4559f6 3915" -H, --no-header Suppress header line\n"
fb2594c1 3916"\n"
583de149 3917" -A, --query=QUERY, --socket=QUERY\n"
56dee73e 3918" QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n"
ab61159a 3919"\n"
583de149 3920" -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
ab61159a 3921" -F, --filter=FILE read filter information from FILE\n"
ff041f16
VK		 3922" FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
3923" STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
3924" TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listen|closing}\n"
3925" connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3926" synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3927" bucket := {syn-recv|time-wait}\n"
3928" big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listen|closing}\n"
ab61159a 3929 );
7a96e199
AH		 3930}
3931
3932static void help(void) __attribute__((noreturn));
3933static void help(void)
3934{
3935 _usage(stdout);
3936 exit(0);
3937}
3938
3939static void usage(void) __attribute__((noreturn));
3940static void usage(void)
3941{
3942 _usage(stderr);
aba5acdf
SH		 3943 exit(-1);
3944}
3945
3946
d1f28cf1 3947static int scan_state(const char *state)
aba5acdf 3948{
b710a722
PS		 3949 static const char * const sstate_namel[] = {
3950 "UNKNOWN",
3951 [SS_ESTABLISHED] = "established",
3952 [SS_SYN_SENT] = "syn-sent",
3953 [SS_SYN_RECV] = "syn-recv",
3954 [SS_FIN_WAIT1] = "fin-wait-1",
3955 [SS_FIN_WAIT2] = "fin-wait-2",
3956 [SS_TIME_WAIT] = "time-wait",
3957 [SS_CLOSE] = "unconnected",
3958 [SS_CLOSE_WAIT] = "close-wait",
3959 [SS_LAST_ACK] = "last-ack",
3960 [SS_LISTEN] = "listening",
3961 [SS_CLOSING] = "closing",
3962 };
aba5acdf 3963 int i;
acd1e437 3964
aba5acdf
SH		 3965 if (strcasecmp(state, "close") == 0 ||
3966 strcasecmp(state, "closed") == 0)
3967 return (1<<SS_CLOSE);
3968 if (strcasecmp(state, "syn-rcv") == 0)
3969 return (1<<SS_SYN_RECV);
1a5bad5a 3970 if (strcasecmp(state, "established") == 0)
aba5acdf
SH		 3971 return (1<<SS_ESTABLISHED);
3972 if (strcasecmp(state, "all") == 0)
3973 return SS_ALL;
3974 if (strcasecmp(state, "connected") == 0)
3975 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN));
1a5bad5a 3976 if (strcasecmp(state, "synchronized") == 0)
aba5acdf
SH		 3977 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT));
3978 if (strcasecmp(state, "bucket") == 0)
3979 return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT);
3980 if (strcasecmp(state, "big") == 0)
3981 return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT));
acd1e437 3982 for (i = 0; i < SS_MAX; i++) {
1a5bad5a 3983 if (strcasecmp(state, sstate_namel[i]) == 0)
aba5acdf
SH		 3984 return (1<<i);
3985 }
9db7bf15
VK		 3986
3987 fprintf(stderr, "ss: wrong state name: %s\n", state);
3988 exit(-1);
aba5acdf
SH		 3989}
3990
ab61159a
SH		 3991static const struct option long_opts[] = {
3992 { "numeric", 0, 0, 'n' },
3993 { "resolve", 0, 0, 'r' },
3994 { "options", 0, 0, 'o' },
3995 { "extended", 0, 0, 'e' },
3996 { "memory", 0, 0, 'm' },
3997 { "info", 0, 0, 'i' },
3998 { "processes", 0, 0, 'p' },
372c30d2 3999 { "bpf", 0, 0, 'b' },
6885e3bf 4000 { "events", 0, 0, 'E' },
351efcde 4001 { "dccp", 0, 0, 'd' },
ab61159a 4002 { "tcp", 0, 0, 't' },
f89d46ad 4003 { "sctp", 0, 0, 'S' },
ab61159a
SH		 4004 { "udp", 0, 0, 'u' },
4005 { "raw", 0, 0, 'w' },
4006 { "unix", 0, 0, 'x' },
4007 { "all", 0, 0, 'a' },
4008 { "listening", 0, 0, 'l' },
4009 { "ipv4", 0, 0, '4' },
4010 { "ipv6", 0, 0, '6' },
4011 { "packet", 0, 0, '0' },
4012 { "family", 1, 0, 'f' },
4013 { "socket", 1, 0, 'A' },
583de149 4014 { "query", 1, 0, 'A' },
c3f346b0 4015 { "summary", 0, 0, 's' },
583de149 4016 { "diag", 1, 0, 'D' },
ab61159a
SH		 4017 { "filter", 1, 0, 'F' },
4018 { "version", 0, 0, 'V' },
4019 { "help", 0, 0, 'h' },
116ac927
RH		 4020 { "context", 0, 0, 'Z' },
4021 { "contexts", 0, 0, 'z' },
95ce04bc 4022 { "net", 1, 0, 'N' },
fb2594c1 4023 { "kill", 0, 0, 'K' },
7a4559f6 4024 { "no-header", 0, 0, 'H' },
ab61159a 4025 { 0 }
ae665a52 4026
ab61159a
SH		 4027};
4028
aba5acdf
SH		 4029int main(int argc, char *argv[])
4030{
aba5acdf
SH		 4031 int saw_states = 0;
4032 int saw_query = 0;
4033 int do_summary = 0;
7d105b56 4034 const char *dump_tcpdiag = NULL;
aba5acdf
SH		 4035 FILE *filter_fp = NULL;
4036 int ch;
9db7bf15 4037 int state_filter = 0;
95eafe43 4038 int addrp_width, screen_width = 80;
aba5acdf 4039
168d97f9
SH		 4040 while ((ch = getopt_long(argc, argv,
4041 "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHS",
ab61159a 4042 long_opts, NULL)) != EOF) {
acd1e437 4043 switch (ch) {
aba5acdf
SH		 4044 case 'n':
4045 resolve_services = 0;
4046 break;
4047 case 'r':
4048 resolve_hosts = 1;
4049 break;
4050 case 'o':
4051 show_options = 1;
4052 break;
4053 case 'e':
4054 show_options = 1;
4055 show_details++;
4056 break;
4057 case 'm':
4058 show_mem = 1;
4059 break;
4060 case 'i':
4061 show_tcpinfo = 1;
4062 break;
4063 case 'p':
4064 show_users++;
fbc0f876 4065 user_ent_hash_build();
aba5acdf 4066 break;
372c30d2
ND		 4067 case 'b':
4068 show_options = 1;
4069 show_bpf++;
4070 break;
6885e3bf
CG		 4071 case 'E':
4072 follow_events = 1;
4073 break;
351efcde 4074 case 'd':
57ff5a10 4075 filter_db_set(&current_filter, DCCP_DB);
351efcde 4076 break;
aba5acdf 4077 case 't':
57ff5a10 4078 filter_db_set(&current_filter, TCP_DB);
aba5acdf 4079 break;
f89d46ad
PS		 4080 case 'S':
4081 filter_db_set(&current_filter, SCTP_DB);
4082 break;
aba5acdf 4083 case 'u':
57ff5a10 4084 filter_db_set(&current_filter, UDP_DB);
aba5acdf
SH		 4085 break;
4086 case 'w':
57ff5a10 4087 filter_db_set(&current_filter, RAW_DB);
aba5acdf
SH		 4088 break;
4089 case 'x':
9db7bf15 4090 filter_af_set(&current_filter, AF_UNIX);
aba5acdf
SH		 4091 break;
4092 case 'a':
9db7bf15 4093 state_filter = SS_ALL;
aba5acdf
SH		 4094 break;
4095 case 'l':
9db7bf15 4096 state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE);
aba5acdf
SH		 4097 break;
4098 case '4':
9db7bf15 4099 filter_af_set(&current_filter, AF_INET);
aba5acdf
SH		 4100 break;
4101 case '6':
9db7bf15 4102 filter_af_set(&current_filter, AF_INET6);
aba5acdf
SH		 4103 break;
4104 case '0':
9db7bf15 4105 filter_af_set(&current_filter, AF_PACKET);
aba5acdf
SH		 4106 break;
4107 case 'f':
4108 if (strcmp(optarg, "inet") == 0)
9db7bf15 4109 filter_af_set(&current_filter, AF_INET);
aba5acdf 4110 else if (strcmp(optarg, "inet6") == 0)
9db7bf15 4111 filter_af_set(&current_filter, AF_INET6);
aba5acdf 4112 else if (strcmp(optarg, "link") == 0)
9db7bf15 4113 filter_af_set(&current_filter, AF_PACKET);
aba5acdf 4114 else if (strcmp(optarg, "unix") == 0)
9db7bf15 4115 filter_af_set(&current_filter, AF_UNIX);
aba5acdf 4116 else if (strcmp(optarg, "netlink") == 0)
9db7bf15 4117 filter_af_set(&current_filter, AF_NETLINK);
aba5acdf 4118 else if (strcmp(optarg, "help") == 0)
7a96e199 4119 help();
aba5acdf 4120 else {
9db7bf15
VK		 4121 fprintf(stderr, "ss: \"%s\" is invalid family\n",
4122 optarg);
aba5acdf
SH		 4123 usage();
4124 }
4125 break;
4126 case 'A':
4127 {
4128 char *p, *p1;
acd1e437 4129
aba5acdf
SH		 4130 if (!saw_query) {
4131 current_filter.dbs = 0;
7f9dddbe 4132 state_filter = state_filter ?
acd1e437 4133 state_filter : SS_CONN;
aba5acdf
SH		 4134 saw_query = 1;
4135 do_default = 0;
4136 }
4137 p = p1 = optarg;
4138 do {
4139 if ((p1 = strchr(p, ',')) != NULL)
ae665a52 4140 *p1 = 0;
aba5acdf 4141 if (strcmp(p, "all") == 0) {
57ff5a10 4142 filter_default_dbs(&current_filter);
aba5acdf 4143 } else if (strcmp(p, "inet") == 0) {
57ff5a10
VK		 4144 filter_db_set(&current_filter, UDP_DB);
4145 filter_db_set(&current_filter, DCCP_DB);
4146 filter_db_set(&current_filter, TCP_DB);
f89d46ad 4147 filter_db_set(&current_filter, SCTP_DB);
57ff5a10 4148 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4149 } else if (strcmp(p, "udp") == 0) {
57ff5a10 4150 filter_db_set(&current_filter, UDP_DB);
351efcde 4151 } else if (strcmp(p, "dccp") == 0) {
57ff5a10 4152 filter_db_set(&current_filter, DCCP_DB);
aba5acdf 4153 } else if (strcmp(p, "tcp") == 0) {
57ff5a10 4154 filter_db_set(&current_filter, TCP_DB);
f89d46ad
PS		 4155 } else if (strcmp(p, "sctp") == 0) {
4156 filter_db_set(&current_filter, SCTP_DB);
aba5acdf 4157 } else if (strcmp(p, "raw") == 0) {
57ff5a10 4158 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4159 } else if (strcmp(p, "unix") == 0) {
57ff5a10
VK		 4160 filter_db_set(&current_filter, UNIX_ST_DB);
4161 filter_db_set(&current_filter, UNIX_DG_DB);
4162 filter_db_set(&current_filter, UNIX_SQ_DB);
1a5bad5a 4163 } else if (strcasecmp(p, "unix_stream") == 0 ||
aba5acdf 4164 strcmp(p, "u_str") == 0) {
57ff5a10 4165 filter_db_set(&current_filter, UNIX_ST_DB);
1a5bad5a 4166 } else if (strcasecmp(p, "unix_dgram") == 0 ||
aba5acdf 4167 strcmp(p, "u_dgr") == 0) {
57ff5a10 4168 filter_db_set(&current_filter, UNIX_DG_DB);
30b669d7
MY		 4169 } else if (strcasecmp(p, "unix_seqpacket") == 0 ||
4170 strcmp(p, "u_seq") == 0) {
57ff5a10 4171 filter_db_set(&current_filter, UNIX_SQ_DB);
aba5acdf 4172 } else if (strcmp(p, "packet") == 0) {
57ff5a10
VK		 4173 filter_db_set(&current_filter, PACKET_R_DB);
4174 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf
SH		 4175 } else if (strcmp(p, "packet_raw") == 0 ||
4176 strcmp(p, "p_raw") == 0) {
57ff5a10 4177 filter_db_set(&current_filter, PACKET_R_DB);
aba5acdf
SH		 4178 } else if (strcmp(p, "packet_dgram") == 0 ||
4179 strcmp(p, "p_dgr") == 0) {
57ff5a10 4180 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf 4181 } else if (strcmp(p, "netlink") == 0) {
57ff5a10 4182 filter_db_set(&current_filter, NETLINK_DB);
aba5acdf
SH		 4183 } else {
4184 fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p);
4185 usage();
4186 }
4187 p = p1 + 1;
4188 } while (p1);
4189 break;
4190 }
4191 case 's':
4192 do_summary = 1;
4193 break;
4194 case 'D':
4195 dump_tcpdiag = optarg;
4196 break;
4197 case 'F':
4198 if (filter_fp) {
4199 fprintf(stderr, "More than one filter file\n");
4200 exit(-1);
4201 }
4202 if (optarg[0] == '-')
4203 filter_fp = stdin;
4204 else
4205 filter_fp = fopen(optarg, "r");
4206 if (!filter_fp) {
4207 perror("fopen filter file");
4208 exit(-1);
4209 }
4210 break;
4211 case 'v':
4212 case 'V':
4213 printf("ss utility, iproute2-ss%s\n", SNAPSHOT);
4214 exit(0);
116ac927
RH		 4215 case 'z':
4216 show_sock_ctx++;
36df1a6e 4217 /* fall through */
116ac927
RH		 4218 case 'Z':
4219 if (is_selinux_enabled() <= 0) {
4220 fprintf(stderr, "ss: SELinux is not enabled.\n");
4221 exit(1);
4222 }
4223 show_proc_ctx++;
4224 user_ent_hash_build();
4225 break;
95ce04bc
VK		 4226 case 'N':
4227 if (netns_switch(optarg))
4228 exit(1);
4229 break;
fb2594c1
LC		 4230 case 'K':
4231 current_filter.kill = 1;
4232 break;
7a4559f6
DA		 4233 case 'H':
4234 show_header = 0;
4235 break;
aba5acdf 4236 case 'h':
7a96e199 4237 help();
f73105ab 4238 case '?':
aba5acdf
SH		 4239 default:
4240 usage();
4241 }
4242 }
4243
4244 argc -= optind;
4245 argv += optind;
4246
aba5acdf
SH		 4247 if (do_summary) {
4248 print_summary();
4249 if (do_default && argc == 0)
4250 exit(0);
4251 }
4252
aba5acdf
SH		 4253 while (argc > 0) {
4254 if (strcmp(*argv, "state") == 0) {
4255 NEXT_ARG();
4256 if (!saw_states)
9db7bf15
VK		 4257 state_filter = 0;
4258 state_filter |= scan_state(*argv);
aba5acdf
SH		 4259 saw_states = 1;
4260 } else if (strcmp(*argv, "exclude") == 0 ||
4261 strcmp(*argv, "excl") == 0) {
4262 NEXT_ARG();
4263 if (!saw_states)
9db7bf15
VK		 4264 state_filter = SS_ALL;
4265 state_filter &= ~scan_state(*argv);
aba5acdf
SH		 4266 saw_states = 1;
4267 } else {
aba5acdf
SH		 4268 break;
4269 }
4270 argc--; argv++;
4271 }
4272
9db7bf15
VK		 4273 if (do_default) {
4274 state_filter = state_filter ? state_filter : SS_CONN;
4275 filter_default_dbs(&current_filter);
9db7bf15
VK		 4276 }
4277
57ff5a10
VK		 4278 filter_states_set(&current_filter, state_filter);
4279 filter_merge_defaults(&current_filter);
4280
9db7bf15 4281 if (resolve_services && resolve_hosts &&
168d97f9 4282 (current_filter.dbs & (UNIX_DBM|INET_L4_DBM)))
9db7bf15
VK		 4283 init_service_resolver();
4284
9db7bf15
VK		 4285 if (current_filter.dbs == 0) {
4286 fprintf(stderr, "ss: no socket tables to show with such filter.\n");
4287 exit(0);
4288 }
4289 if (current_filter.families == 0) {
4290 fprintf(stderr, "ss: no families to show with such filter.\n");
4291 exit(0);
4292 }
aba5acdf
SH		 4293 if (current_filter.states == 0) {
4294 fprintf(stderr, "ss: no socket states to show with such filter.\n");
4295 exit(0);
4296 }
4297
4298 if (dump_tcpdiag) {
4299 FILE *dump_fp = stdout;
acd1e437 4300
aba5acdf
SH		 4301 if (!(current_filter.dbs & (1<<TCP_DB))) {
4302 fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n");
4303 exit(0);
4304 }
4305 if (dump_tcpdiag[0] != '-') {
4306 dump_fp = fopen(dump_tcpdiag, "w");
4307 if (!dump_tcpdiag) {
4308 perror("fopen dump file");
4309 exit(-1);
4310 }
4311 }
3fe5b534 4312 inet_show_netlink(&current_filter, dump_fp, IPPROTO_TCP);
aba5acdf
SH		 4313 fflush(dump_fp);
4314 exit(0);
4315 }
4316
1527a17e
VK		 4317 if (ssfilter_parse(&current_filter.f, argc, argv, filter_fp))
4318 usage();
4319
aba5acdf
SH		 4320 netid_width = 0;
4321 if (current_filter.dbs&(current_filter.dbs-1))
4322 netid_width = 5;
4323
4324 state_width = 0;
4325 if (current_filter.states&(current_filter.states-1))
4326 state_width = 10;
4327
aba5acdf
SH		 4328 if (isatty(STDOUT_FILENO)) {
4329 struct winsize w;
4330
4331 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) {
4332 if (w.ws_col > 0)
4333 screen_width = w.ws_col;
4334 }
4335 }
4336
4337 addrp_width = screen_width;
4338 addrp_width -= netid_width+1;
4339 addrp_width -= state_width+1;
4340 addrp_width -= 14;
4341
4342 if (addrp_width&1) {
4343 if (netid_width)
4344 netid_width++;
4345 else if (state_width)
4346 state_width++;
4347 }
4348
4349 addrp_width /= 2;
4350 addrp_width--;
4351
4352 serv_width = resolve_services ? 7 : 5;
4353
4354 if (addrp_width < 15+serv_width+1)
4355 addrp_width = 15+serv_width+1;
4356
ae665a52 4357 addr_width = addrp_width - serv_width - 1;
aba5acdf 4358
7a4559f6
DA		 4359 if (show_header) {
4360 if (netid_width)
4361 printf("%-*s ", netid_width, "Netid");
4362 if (state_width)
4363 printf("%-*s ", state_width, "State");
4364 printf("%-6s %-6s ", "Recv-Q", "Send-Q");
4365 }
aba5acdf 4366
d68e00f7 4367 /* Make enough space for the local/remote port field */
4368 addr_width -= 13;
4369 serv_width += 13;
2dc85485 4370
7a4559f6
DA		 4371 if (show_header) {
4372 printf("%*s:%-*s %*s:%-*s\n",
4373 addr_width, "Local Address", serv_width, "Port",
4374 addr_width, "Peer Address", serv_width, "Port");
4375 }
aba5acdf 4376
aba5acdf
SH		 4377 fflush(stdout);
4378
6885e3bf
CG		 4379 if (follow_events)
4380 exit(handle_follow_request(&current_filter));
4381
aba5acdf
SH		 4382 if (current_filter.dbs & (1<<NETLINK_DB))
4383 netlink_show(&current_filter);
4384 if (current_filter.dbs & PACKET_DBM)
4385 packet_show(&current_filter);
4386 if (current_filter.dbs & UNIX_DBM)
4387 unix_show(&current_filter);
4388 if (current_filter.dbs & (1<<RAW_DB))
4389 raw_show(&current_filter);
4390 if (current_filter.dbs & (1<<UDP_DB))
4391 udp_show(&current_filter);
4392 if (current_filter.dbs & (1<<TCP_DB))
3fe5b534 4393 tcp_show(&current_filter, IPPROTO_TCP);
351efcde 4394 if (current_filter.dbs & (1<<DCCP_DB))
3fe5b534 4395 tcp_show(&current_filter, IPPROTO_DCCP);
f89d46ad
PS		 4396 if (current_filter.dbs & (1<<SCTP_DB))
4397 sctp_show(&current_filter);
116ac927
RH		 4398
4399 if (show_users || show_proc_ctx || show_sock_ctx)
4400 user_ent_destroy();
4401
aba5acdf
SH		 4402 return 0;
4403}
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