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