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ss: Add support for SCTP protocol
[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)
f89d46ad 139#define INET_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<RAW_DB)|(1<<SCTP_DB))
aba5acdf
SH		 140
141enum {
7d105b56
SH		 142 SS_UNKNOWN,
143 SS_ESTABLISHED,
144 SS_SYN_SENT,
145 SS_SYN_RECV,
146 SS_FIN_WAIT1,
147 SS_FIN_WAIT2,
148 SS_TIME_WAIT,
149 SS_CLOSE,
150 SS_CLOSE_WAIT,
151 SS_LAST_ACK,
152 SS_LISTEN,
153 SS_CLOSING,
154 SS_MAX
aba5acdf
SH		 155};
156
f89d46ad
PS		 157enum {
158 SCTP_STATE_CLOSED = 0,
159 SCTP_STATE_COOKIE_WAIT = 1,
160 SCTP_STATE_COOKIE_ECHOED = 2,
161 SCTP_STATE_ESTABLISHED = 3,
162 SCTP_STATE_SHUTDOWN_PENDING = 4,
163 SCTP_STATE_SHUTDOWN_SENT = 5,
164 SCTP_STATE_SHUTDOWN_RECEIVED = 6,
165 SCTP_STATE_SHUTDOWN_ACK_SENT = 7,
166};
167
9db7bf15
VK		 168#define SS_ALL ((1 << SS_MAX) - 1)
169#define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)))
aba5acdf
SH		 170
171#include "ssfilter.h"
172
acd1e437 173struct filter {
aba5acdf
SH		 174 int dbs;
175 int states;
176 int families;
177 struct ssfilter *f;
fb2594c1 178 bool kill;
aba5acdf
SH		 179};
180
9db7bf15
VK		 181static const struct filter default_dbs[MAX_DB] = {
182 [TCP_DB] = {
183 .states = SS_CONN,
184 .families = (1 << AF_INET) | (1 << AF_INET6),
185 },
186 [DCCP_DB] = {
187 .states = SS_CONN,
188 .families = (1 << AF_INET) | (1 << AF_INET6),
189 },
190 [UDP_DB] = {
f42a4574 191 .states = (1 << SS_ESTABLISHED),
9db7bf15
VK		 192 .families = (1 << AF_INET) | (1 << AF_INET6),
193 },
194 [RAW_DB] = {
f42a4574 195 .states = (1 << SS_ESTABLISHED),
9db7bf15
VK		 196 .families = (1 << AF_INET) | (1 << AF_INET6),
197 },
198 [UNIX_DG_DB] = {
199 .states = (1 << SS_CLOSE),
200 .families = (1 << AF_UNIX),
201 },
202 [UNIX_ST_DB] = {
203 .states = SS_CONN,
204 .families = (1 << AF_UNIX),
205 },
206 [UNIX_SQ_DB] = {
207 .states = SS_CONN,
208 .families = (1 << AF_UNIX),
209 },
210 [PACKET_DG_DB] = {
211 .states = (1 << SS_CLOSE),
212 .families = (1 << AF_PACKET),
213 },
214 [PACKET_R_DB] = {
215 .states = (1 << SS_CLOSE),
216 .families = (1 << AF_PACKET),
217 },
218 [NETLINK_DB] = {
219 .states = (1 << SS_CLOSE),
220 .families = (1 << AF_NETLINK),
221 },
f89d46ad
PS		 222 [SCTP_DB] = {
223 .states = SS_CONN,
224 .families = (1 << AF_INET) | (1 << AF_INET6),
225 },
aba5acdf
SH		 226};
227
9db7bf15
VK		 228static const struct filter default_afs[AF_MAX] = {
229 [AF_INET] = {
230 .dbs = INET_DBM,
231 .states = SS_CONN,
232 },
233 [AF_INET6] = {
234 .dbs = INET_DBM,
235 .states = SS_CONN,
236 },
237 [AF_UNIX] = {
238 .dbs = UNIX_DBM,
239 .states = SS_CONN,
240 },
241 [AF_PACKET] = {
242 .dbs = PACKET_DBM,
243 .states = (1 << SS_CLOSE),
244 },
245 [AF_NETLINK] = {
246 .dbs = (1 << NETLINK_DB),
247 .states = (1 << SS_CLOSE),
248 },
249};
250
251static int do_default = 1;
252static struct filter current_filter;
253
254static void filter_db_set(struct filter *f, int db)
255{
256 f->states |= default_dbs[db].states;
9db7bf15
VK		 257 f->dbs |= 1 << db;
258 do_default = 0;
259}
260
261static void filter_af_set(struct filter *f, int af)
262{
1527a17e
VK		 263 f->states |= default_afs[af].states;
264 f->families |= 1 << af;
265 do_default = 0;
266 preferred_family = af;
9db7bf15
VK		 267}
268
269static int filter_af_get(struct filter *f, int af)
270{
271 return f->families & (1 << af);
272}
273
274static void filter_default_dbs(struct filter *f)
275{
276 filter_db_set(f, UDP_DB);
277 filter_db_set(f, DCCP_DB);
278 filter_db_set(f, TCP_DB);
279 filter_db_set(f, RAW_DB);
280 filter_db_set(f, UNIX_ST_DB);
281 filter_db_set(f, UNIX_DG_DB);
282 filter_db_set(f, UNIX_SQ_DB);
283 filter_db_set(f, PACKET_R_DB);
284 filter_db_set(f, PACKET_DG_DB);
285 filter_db_set(f, NETLINK_DB);
f89d46ad 286 filter_db_set(f, SCTP_DB);
9db7bf15
VK		 287}
288
57ff5a10 289static void filter_states_set(struct filter *f, int states)
9db7bf15 290{
57ff5a10 291 if (states)
9d320e1e 292 f->states = states;
57ff5a10 293}
9db7bf15 294
57ff5a10
VK		 295static void filter_merge_defaults(struct filter *f)
296{
297 int db;
298 int af;
9db7bf15 299
57ff5a10
VK		 300 for (db = 0; db < MAX_DB; db++) {
301 if (!(f->dbs & (1 << db)))
302 continue;
9db7bf15 303
57ff5a10
VK		 304 if (!(default_dbs[db].families & f->families))
305 f->families |= default_dbs[db].families;
306 }
307 for (af = 0; af < AF_MAX; af++) {
308 if (!(f->families & (1 << af)))
309 continue;
310
311 if (!(default_afs[af].dbs & f->dbs))
312 f->dbs |= default_afs[af].dbs;
313 }
9db7bf15 314}
aba5acdf 315
ab01dbbb 316static FILE *generic_proc_open(const char *env, const char *name)
aba5acdf 317{
ab01dbbb 318 const char *p = getenv(env);
aba5acdf 319 char store[128];
ab01dbbb 320
aba5acdf
SH		 321 if (!p) {
322 p = getenv("PROC_ROOT") ? : "/proc";
323 snprintf(store, sizeof(store)-1, "%s/%s", p, name);
324 p = store;
325 }
ab01dbbb
SH		 326
327 return fopen(p, "r");
aba5acdf
SH		 328}
329
ab01dbbb 330static FILE *net_tcp_open(void)
aba5acdf
SH		 331{
332 return generic_proc_open("PROC_NET_TCP", "net/tcp");
333}
334
ab01dbbb 335static FILE *net_tcp6_open(void)
aba5acdf
SH		 336{
337 return generic_proc_open("PROC_NET_TCP6", "net/tcp6");
338}
339
ab01dbbb 340static FILE *net_udp_open(void)
aba5acdf
SH		 341{
342 return generic_proc_open("PROC_NET_UDP", "net/udp");
343}
344
ab01dbbb 345static FILE *net_udp6_open(void)
aba5acdf
SH		 346{
347 return generic_proc_open("PROC_NET_UDP6", "net/udp6");
348}
349
ab01dbbb 350static FILE *net_raw_open(void)
aba5acdf
SH		 351{
352 return generic_proc_open("PROC_NET_RAW", "net/raw");
353}
354
ab01dbbb 355static FILE *net_raw6_open(void)
aba5acdf
SH		 356{
357 return generic_proc_open("PROC_NET_RAW6", "net/raw6");
358}
359
ab01dbbb 360static FILE *net_unix_open(void)
aba5acdf
SH		 361{
362 return generic_proc_open("PROC_NET_UNIX", "net/unix");
363}
364
ab01dbbb 365static FILE *net_packet_open(void)
aba5acdf
SH		 366{
367 return generic_proc_open("PROC_NET_PACKET", "net/packet");
368}
369
ab01dbbb 370static FILE *net_netlink_open(void)
aba5acdf
SH		 371{
372 return generic_proc_open("PROC_NET_NETLINK", "net/netlink");
373}
374
ab01dbbb 375static FILE *slabinfo_open(void)
aba5acdf
SH		 376{
377 return generic_proc_open("PROC_SLABINFO", "slabinfo");
378}
379
ab01dbbb 380static FILE *net_sockstat_open(void)
aba5acdf
SH		 381{
382 return generic_proc_open("PROC_NET_SOCKSTAT", "net/sockstat");
383}
384
ab01dbbb 385static FILE *net_sockstat6_open(void)
aba5acdf
SH		 386{
387 return generic_proc_open("PROC_NET_SOCKSTAT6", "net/sockstat6");
388}
389
ab01dbbb 390static FILE *net_snmp_open(void)
aba5acdf
SH		 391{
392 return generic_proc_open("PROC_NET_SNMP", "net/snmp");
393}
394
ab01dbbb 395static FILE *ephemeral_ports_open(void)
aba5acdf
SH		 396{
397 return generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", "sys/net/ipv4/ip_local_port_range");
398}
399
fbc0f876
SF		 400struct user_ent {
401 struct user_ent *next;
402 unsigned int ino;
403 int pid;
404 int fd;
116ac927
RH		 405 char *process;
406 char *process_ctx;
407 char *socket_ctx;
fbc0f876
SF		 408};
409
410#define USER_ENT_HASH_SIZE 256
411struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE];
412
413static int user_ent_hashfn(unsigned int ino)
aba5acdf 414{
fbc0f876 415 int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino;
aba5acdf 416
fbc0f876
SF		 417 return val & (USER_ENT_HASH_SIZE - 1);
418}
419
116ac927
RH		 420static void user_ent_add(unsigned int ino, char *process,
421 int pid, int fd,
422 char *proc_ctx,
423 char *sock_ctx)
fbc0f876
SF		 424{
425 struct user_ent *p, **pp;
aba5acdf 426
116ac927
RH		 427 p = malloc(sizeof(struct user_ent));
428 if (!p) {
429 fprintf(stderr, "ss: failed to malloc buffer\n");
fbc0f876 430 abort();
116ac927 431 }
fbc0f876
SF		 432 p->next = NULL;
433 p->ino = ino;
434 p->pid = pid;
435 p->fd = fd;
116ac927
RH		 436 p->process = strdup(process);
437 p->process_ctx = strdup(proc_ctx);
438 p->socket_ctx = strdup(sock_ctx);
fbc0f876
SF		 439
440 pp = &user_ent_hash[user_ent_hashfn(ino)];
441 p->next = *pp;
442 *pp = p;
443}
aba5acdf 444
116ac927
RH		 445static void user_ent_destroy(void)
446{
447 struct user_ent *p, *p_next;
448 int cnt = 0;
449
450 while (cnt != USER_ENT_HASH_SIZE) {
451 p = user_ent_hash[cnt];
452 while (p) {
453 free(p->process);
454 free(p->process_ctx);
455 free(p->socket_ctx);
456 p_next = p->next;
457 free(p);
458 p = p_next;
459 }
460 cnt++;
461 }
462}
463
fbc0f876
SF		 464static void user_ent_hash_build(void)
465{
466 const char *root = getenv("PROC_ROOT") ? : "/proc/";
467 struct dirent *d;
468 char name[1024];
469 int nameoff;
470 DIR *dir;
116ac927
RH		 471 char *pid_context;
472 char *sock_context;
473 const char *no_ctx = "unavailable";
474
475 /* If show_users & show_proc_ctx set only do this once */
476 if (user_ent_hash_build_init != 0)
477 return;
478
479 user_ent_hash_build_init = 1;
fbc0f876 480
0ee9052f 481 strncpy(name, root, sizeof(name)-1);
482 name[sizeof(name)-1] = 0;
483
fbc0f876 484 if (strlen(name) == 0 || name[strlen(name)-1] != '/')
aba5acdf 485 strcat(name, "/");
fbc0f876 486
aba5acdf 487 nameoff = strlen(name);
fbc0f876
SF		 488
489 dir = opendir(name);
490 if (!dir)
491 return;
aba5acdf
SH		 492
493 while ((d = readdir(dir)) != NULL) {
aba5acdf 494 struct dirent *d1;
aba5acdf 495 char process[16];
116ac927 496 char *p;
fbc0f876
SF		 497 int pid, pos;
498 DIR *dir1;
499 char crap;
aba5acdf
SH		 500
501 if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1)
502 continue;
503
116ac927
RH		 504 if (getpidcon(pid, &pid_context) != 0)
505 pid_context = strdup(no_ctx);
506
0ee9052f 507 snprintf(name + nameoff, sizeof(name) - nameoff, "%d/fd/", pid);
aba5acdf 508 pos = strlen(name);
a02371fb
PS		 509 if ((dir1 = opendir(name)) == NULL) {
510 free(pid_context);
aba5acdf 511 continue;
a02371fb 512 }
aba5acdf 513
fbc0f876 514 process[0] = '\0';
116ac927 515 p = process;
aba5acdf
SH		 516
517 while ((d1 = readdir(dir1)) != NULL) {
fbc0f876
SF		 518 const char *pattern = "socket:[";
519 unsigned int ino;
aba5acdf 520 char lnk[64];
18445b3e 521 int fd;
788731b3 522 ssize_t link_len;
116ac927 523 char tmp[1024];
aba5acdf
SH		 524
525 if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1)
526 continue;
527
0ee9052f 528 snprintf(name+pos, sizeof(name) - pos, "%d", fd);
788731b3
TJ		 529
530 link_len = readlink(name, lnk, sizeof(lnk)-1);
531 if (link_len == -1)
532 continue;
533 lnk[link_len] = '\0';
534
535 if (strncmp(lnk, pattern, strlen(pattern)))
aba5acdf
SH		 536 continue;
537
fbc0f876 538 sscanf(lnk, "socket:[%u]", &ino);
aba5acdf 539
116ac927
RH		 540 snprintf(tmp, sizeof(tmp), "%s/%d/fd/%s",
541 root, pid, d1->d_name);
542
543 if (getfilecon(tmp, &sock_context) <= 0)
544 sock_context = strdup(no_ctx);
545
546 if (*p == '\0') {
aba5acdf 547 FILE *fp;
fbc0f876 548
116ac927
RH		 549 snprintf(tmp, sizeof(tmp), "%s/%d/stat",
550 root, pid);
aba5acdf 551 if ((fp = fopen(tmp, "r")) != NULL) {
d572ed4d
PS		 552 if (fscanf(fp, "%*d (%[^)])", p) < 1)
553 ; /* ignore */
aba5acdf
SH		 554 fclose(fp);
555 }
556 }
116ac927
RH		 557 user_ent_add(ino, p, pid, fd,
558 pid_context, sock_context);
559 free(sock_context);
aba5acdf 560 }
116ac927 561 free(pid_context);
aba5acdf
SH		 562 closedir(dir1);
563 }
564 closedir(dir);
fbc0f876
SF		 565}
566
116ac927
RH		 567enum entry_types {
568 USERS,
569 PROC_CTX,
570 PROC_SOCK_CTX
571};
572
573#define ENTRY_BUF_SIZE 512
acd1e437 574static int find_entry(unsigned int ino, char **buf, int type)
fbc0f876
SF		 575{
576 struct user_ent *p;
577 int cnt = 0;
578 char *ptr;
532ca40a 579 char *new_buf;
116ac927
RH		 580 int len, new_buf_len;
581 int buf_used = 0;
582 int buf_len = 0;
fbc0f876
SF		 583
584 if (!ino)
585 return 0;
586
587 p = user_ent_hash[user_ent_hashfn(ino)];
116ac927 588 ptr = *buf = NULL;
fbc0f876
SF		 589 while (p) {
590 if (p->ino != ino)
591 goto next;
592
116ac927
RH		 593 while (1) {
594 ptr = *buf + buf_used;
595 switch (type) {
596 case USERS:
597 len = snprintf(ptr, buf_len - buf_used,
598 "(\"%s\",pid=%d,fd=%d),",
599 p->process, p->pid, p->fd);
600 break;
601 case PROC_CTX:
602 len = snprintf(ptr, buf_len - buf_used,
603 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),",
604 p->process, p->pid,
605 p->process_ctx, p->fd);
606 break;
607 case PROC_SOCK_CTX:
608 len = snprintf(ptr, buf_len - buf_used,
609 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),",
610 p->process, p->pid,
611 p->process_ctx, p->fd,
612 p->socket_ctx);
613 break;
614 default:
615 fprintf(stderr, "ss: invalid type: %d\n", type);
616 abort();
617 }
fbc0f876 618
116ac927
RH		 619 if (len < 0 || len >= buf_len - buf_used) {
620 new_buf_len = buf_len + ENTRY_BUF_SIZE;
532ca40a 621 new_buf = realloc(*buf, new_buf_len);
116ac927
RH		 622 if (!new_buf) {
623 fprintf(stderr, "ss: failed to malloc buffer\n");
624 abort();
625 }
532ca40a 626 *buf = new_buf;
116ac927
RH		 627 buf_len = new_buf_len;
628 continue;
629 } else {
630 buf_used += len;
631 break;
632 }
633 }
fbc0f876 634 cnt++;
116ac927 635next:
fbc0f876
SF		 636 p = p->next;
637 }
116ac927
RH		 638 if (buf_used) {
639 ptr = *buf + buf_used;
fbc0f876 640 ptr[-1] = '\0';
116ac927 641 }
aba5acdf
SH		 642 return cnt;
643}
644
aba5acdf
SH		 645/* Get stats from slab */
646
acd1e437 647struct slabstat {
aba5acdf
SH		 648 int socks;
649 int tcp_ports;
650 int tcp_tws;
651 int tcp_syns;
652 int skbs;
653};
654
a221d621 655static struct slabstat slabstat;
aba5acdf 656
acd1e437
SH		 657static const char *slabstat_ids[] = {
658
aba5acdf
SH		 659 "sock",
660 "tcp_bind_bucket",
661 "tcp_tw_bucket",
662 "tcp_open_request",
663 "skbuff_head_cache",
664};
665
d1f28cf1 666static int get_slabstat(struct slabstat *s)
aba5acdf
SH		 667{
668 char buf[256];
669 FILE *fp;
670 int cnt;
a221d621
BL		 671 static int slabstat_valid;
672
673 if (slabstat_valid)
674 return 0;
aba5acdf
SH		 675
676 memset(s, 0, sizeof(*s));
677
ab01dbbb
SH		 678 fp = slabinfo_open();
679 if (!fp)
aba5acdf
SH		 680 return -1;
681
682 cnt = sizeof(*s)/sizeof(int);
683
d572ed4d
PS		 684 if (!fgets(buf, sizeof(buf), fp)) {
685 fclose(fp);
686 return -1;
687 }
acd1e437 688 while (fgets(buf, sizeof(buf), fp) != NULL) {
aba5acdf 689 int i;
acd1e437 690
62000e51 691 for (i = 0; i < ARRAY_SIZE(slabstat_ids); i++) {
aba5acdf
SH		 692 if (memcmp(buf, slabstat_ids[i], strlen(slabstat_ids[i])) == 0) {
693 sscanf(buf, "%*s%d", ((int *)s) + i);
694 cnt--;
695 break;
696 }
697 }
698 if (cnt <= 0)
699 break;
700 }
701
a221d621
BL		 702 slabstat_valid = 1;
703
aba5acdf
SH		 704 fclose(fp);
705 return 0;
706}
707
2e7e805d 708static unsigned long long cookie_sk_get(const uint32_t *cookie)
f1b39e1b 709{
2e7e805d 710 return (((unsigned long long)cookie[1] << 31) << 1) | cookie[0];
f1b39e1b
VK		 711}
712
7d105b56
SH		 713static const char *sstate_name[] = {
714 "UNKNOWN",
9cb1eccf
ED		 715 [SS_ESTABLISHED] = "ESTAB",
716 [SS_SYN_SENT] = "SYN-SENT",
717 [SS_SYN_RECV] = "SYN-RECV",
718 [SS_FIN_WAIT1] = "FIN-WAIT-1",
719 [SS_FIN_WAIT2] = "FIN-WAIT-2",
720 [SS_TIME_WAIT] = "TIME-WAIT",
721 [SS_CLOSE] = "UNCONN",
722 [SS_CLOSE_WAIT] = "CLOSE-WAIT",
723 [SS_LAST_ACK] = "LAST-ACK",
acd1e437 724 [SS_LISTEN] = "LISTEN",
9cb1eccf 725 [SS_CLOSING] = "CLOSING",
aba5acdf
SH		 726};
727
f89d46ad
PS		 728static const char *sctp_sstate_name[] = {
729 [SCTP_STATE_CLOSED] = "CLOSED",
730 [SCTP_STATE_COOKIE_WAIT] = "COOKIE_WAIT",
731 [SCTP_STATE_COOKIE_ECHOED] = "COOKIE_ECHOED",
732 [SCTP_STATE_ESTABLISHED] = "ESTAB",
733 [SCTP_STATE_SHUTDOWN_PENDING] = "SHUTDOWN_PENDING",
734 [SCTP_STATE_SHUTDOWN_SENT] = "SHUTDOWN_SENT",
735 [SCTP_STATE_SHUTDOWN_RECEIVED] = "SHUTDOWN_RECEIVED",
736 [SCTP_STATE_SHUTDOWN_ACK_SENT] = "ACK_SENT",
737};
738
7d105b56
SH		 739static const char *sstate_namel[] = {
740 "UNKNOWN",
9cb1eccf
ED		 741 [SS_ESTABLISHED] = "established",
742 [SS_SYN_SENT] = "syn-sent",
743 [SS_SYN_RECV] = "syn-recv",
744 [SS_FIN_WAIT1] = "fin-wait-1",
745 [SS_FIN_WAIT2] = "fin-wait-2",
746 [SS_TIME_WAIT] = "time-wait",
747 [SS_CLOSE] = "unconnected",
748 [SS_CLOSE_WAIT] = "close-wait",
749 [SS_LAST_ACK] = "last-ack",
acd1e437 750 [SS_LISTEN] = "listening",
9cb1eccf 751 [SS_CLOSING] = "closing",
aba5acdf
SH		 752};
753
acd1e437 754struct sockstat {
ec4d0d8a
VK		 755 struct sockstat *next;
756 unsigned int type;
89f634f9 757 uint16_t prot;
8250bc9f
VK		 758 inet_prefix local;
759 inet_prefix remote;
760 int lport;
761 int rport;
762 int state;
763 int rq, wq;
acd1e437
SH		 764 unsigned int ino;
765 unsigned int uid;
8250bc9f
VK		 766 int refcnt;
767 unsigned int iface;
768 unsigned long long sk;
99bb68ff
VK		 769 char *name;
770 char *peer_name;
ec75249b 771 __u32 mark;
055840f2
VK		 772};
773
acd1e437 774struct dctcpstat {
055840f2
VK		 775 unsigned int ce_state;
776 unsigned int alpha;
777 unsigned int ab_ecn;
778 unsigned int ab_tot;
779 bool enabled;
780};
781
acd1e437 782struct tcpstat {
055840f2 783 struct sockstat ss;
8250bc9f
VK		 784 int timer;
785 int timeout;
786 int probes;
d2055ea5 787 char cong_alg[16];
8250bc9f 788 double rto, ato, rtt, rttvar;
d1f338b3 789 int qack, ssthresh, backoff;
8250bc9f
VK		 790 double send_bps;
791 int snd_wscale;
792 int rcv_wscale;
793 int mss;
d1f338b3 794 unsigned int cwnd;
8250bc9f
VK		 795 unsigned int lastsnd;
796 unsigned int lastrcv;
797 unsigned int lastack;
798 double pacing_rate;
799 double pacing_rate_max;
1a4dda71
ED		 800 unsigned long long bytes_acked;
801 unsigned long long bytes_received;
ecb435ea
CG		 802 unsigned int segs_out;
803 unsigned int segs_in;
414aeec9
MKL		 804 unsigned int data_segs_out;
805 unsigned int data_segs_in;
8250bc9f
VK		 806 unsigned int unacked;
807 unsigned int retrans;
808 unsigned int retrans_total;
809 unsigned int lost;
810 unsigned int sacked;
811 unsigned int fackets;
812 unsigned int reordering;
9e99e495 813 unsigned int not_sent;
8250bc9f 814 double rcv_rtt;
9e99e495 815 double min_rtt;
8250bc9f
VK		 816 int rcv_space;
817 bool has_ts_opt;
818 bool has_sack_opt;
819 bool has_ecn_opt;
820 bool has_ecnseen_opt;
821 bool has_fastopen_opt;
822 bool has_wscale_opt;
823 struct dctcpstat *dctcp;
2f0f9aef 824 struct tcp_bbr_info *bbr_info;
aba5acdf
SH		 825};
826
f89d46ad
PS		 827/* SCTP assocs share the same inode number with their parent endpoint. So if we
828 * have seen the inode number before, it must be an assoc instead of the next
829 * endpoint. */
830static bool is_sctp_assoc(struct sockstat *s, const char *sock_name)
831{
832 if (strcmp(sock_name, "sctp"))
833 return false;
834 if (!sctp_ino || sctp_ino != s->ino)
835 return false;
836 return true;
837}
838
2d791bc8
VK		 839static void sock_state_print(struct sockstat *s, const char *sock_name)
840{
841 if (netid_width)
f89d46ad
PS		 842 printf("%-*s ", netid_width,
843 is_sctp_assoc(s, sock_name) ? "" : sock_name);
844 if (state_width) {
845 if (is_sctp_assoc(s, sock_name))
846 printf("`- %-*s ", state_width - 3,
847 sctp_sstate_name[s->state]);
848 else
849 printf("%-*s ", state_width, sstate_name[s->state]);
850 }
2d791bc8
VK		 851
852 printf("%-6d %-6d ", s->rq, s->wq);
853}
854
f1b39e1b
VK		 855static void sock_details_print(struct sockstat *s)
856{
857 if (s->uid)
858 printf(" uid:%u", s->uid);
859
860 printf(" ino:%u", s->ino);
861 printf(" sk:%llx", s->sk);
ec75249b
LC		 862
863 if (s->mark)
864 printf(" fwmark:0x%x", s->mark);
f1b39e1b
VK		 865}
866
b217df10
VK		 867static void sock_addr_print_width(int addr_len, const char *addr, char *delim,
868 int port_len, const char *port, const char *ifname)
869{
870 if (ifname) {
871 printf("%*s%%%s%s%-*s ", addr_len, addr, ifname, delim,
872 port_len, port);
acd1e437 873 } else {
b217df10
VK		 874 printf("%*s%s%-*s ", addr_len, addr, delim, port_len, port);
875 }
876}
877
878static void sock_addr_print(const char *addr, char *delim, const char *port,
879 const char *ifname)
880{
881 sock_addr_print_width(addr_width, addr, delim, serv_width, port, ifname);
882}
883
7d105b56 884static const char *tmr_name[] = {
aba5acdf
SH		 885 "off",
886 "on",
887 "keepalive",
888 "timewait",
889 "persist",
890 "unknown"
891};
892
d1f28cf1 893static const char *print_ms_timer(int timeout)
aba5acdf
SH		 894{
895 static char buf[64];
896 int secs, msecs, minutes;
acd1e437 897
aba5acdf
SH		 898 if (timeout < 0)
899 timeout = 0;
900 secs = timeout/1000;
901 minutes = secs/60;
902 secs = secs%60;
903 msecs = timeout%1000;
904 buf[0] = 0;
905 if (minutes) {
906 msecs = 0;
907 snprintf(buf, sizeof(buf)-16, "%dmin", minutes);
908 if (minutes > 9)
909 secs = 0;
910 }
911 if (secs) {
912 if (secs > 9)
913 msecs = 0;
914 sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec");
915 }
916 if (msecs)
917 sprintf(buf+strlen(buf), "%03dms", msecs);
918 return buf;
e7113c61 919}
aba5acdf 920
22588a0e 921struct scache {
aba5acdf
SH		 922 struct scache *next;
923 int port;
924 char *name;
925 const char *proto;
926};
927
928struct scache *rlist;
929
d1f28cf1 930static void init_service_resolver(void)
aba5acdf
SH		 931{
932 char buf[128];
933 FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
596307ea
PS		 934
935 if (!fp)
936 return;
937
938 if (!fgets(buf, sizeof(buf), fp)) {
2bcc3c16 939 pclose(fp);
596307ea
PS		 940 return;
941 }
942 while (fgets(buf, sizeof(buf), fp) != NULL) {
943 unsigned int progn, port;
944 char proto[128], prog[128] = "rpc.";
945 struct scache *c;
946
947 if (sscanf(buf, "%u %*d %s %u %s",
acd1e437 948 &progn, proto, &port, prog+4) != 4)
596307ea
PS		 949 continue;
950
951 if (!(c = malloc(sizeof(*c))))
952 continue;
953
954 c->port = port;
955 c->name = strdup(prog);
956 if (strcmp(proto, TCP_PROTO) == 0)
957 c->proto = TCP_PROTO;
958 else if (strcmp(proto, UDP_PROTO) == 0)
959 c->proto = UDP_PROTO;
f89d46ad
PS		 960 else if (strcmp(proto, SCTP_PROTO) == 0)
961 c->proto = SCTP_PROTO;
596307ea
PS		 962 else
963 c->proto = NULL;
964 c->next = rlist;
965 rlist = c;
aba5acdf 966 }
596307ea 967 pclose(fp);
aba5acdf
SH		 968}
969
ab61159a
SH		 970/* Even do not try default linux ephemeral port ranges:
971 * default /etc/services contains so much of useless crap
972 * wouldbe "allocated" to this area that resolution
973 * is really harmful. I shrug each time when seeing
974 * "socks" or "cfinger" in dumps.
975 */
976static int is_ephemeral(int port)
977{
acd1e437 978 static int min = 0, max;
c29d3792
PS		 979
980 if (!min) {
ab01dbbb 981 FILE *f = ephemeral_ports_open();
acd1e437 982
c29d3792
PS		 983 if (!f || fscanf(f, "%d %d", &min, &max) < 2) {
984 min = 1024;
985 max = 4999;
ab61159a 986 }
c29d3792
PS		 987 if (f)
988 fclose(f);
ab61159a 989 }
c29d3792 990 return port >= min && port <= max;
ab61159a
SH		 991}
992
993
d1f28cf1 994static const char *__resolve_service(int port)
aba5acdf
SH		 995{
996 struct scache *c;
997
998 for (c = rlist; c; c = c->next) {
999 if (c->port == port && c->proto == dg_proto)
1000 return c->name;
1001 }
1002
ab61159a 1003 if (!is_ephemeral(port)) {
aba5acdf
SH		 1004 static int notfirst;
1005 struct servent *se;
acd1e437 1006
aba5acdf
SH		 1007 if (!notfirst) {
1008 setservent(1);
1009 notfirst = 1;
ae665a52 1010 }
aba5acdf
SH		 1011 se = getservbyport(htons(port), dg_proto);
1012 if (se)
1013 return se->s_name;
1014 }
1015
1016 return NULL;
1017}
1018
22588a0e
ED		 1019#define SCACHE_BUCKETS 1024
1020static struct scache *cache_htab[SCACHE_BUCKETS];
aba5acdf 1021
d1f28cf1 1022static const char *resolve_service(int port)
aba5acdf
SH		 1023{
1024 static char buf[128];
22588a0e
ED		 1025 struct scache *c;
1026 const char *res;
1027 int hash;
aba5acdf
SH		 1028
1029 if (port == 0) {
1030 buf[0] = '*';
1031 buf[1] = 0;
1032 return buf;
1033 }
1034
22588a0e
ED		 1035 if (!resolve_services)
1036 goto do_numeric;
aba5acdf 1037
22588a0e
ED		 1038 if (dg_proto == RAW_PROTO)
1039 return inet_proto_n2a(port, buf, sizeof(buf));
1040
1041
1042 hash = (port^(((unsigned long)dg_proto)>>2)) % SCACHE_BUCKETS;
1043
1044 for (c = cache_htab[hash]; c; c = c->next) {
1045 if (c->port == port && c->proto == dg_proto)
1046 goto do_cache;
aba5acdf
SH		 1047 }
1048
22588a0e
ED		 1049 c = malloc(sizeof(*c));
1050 if (!c)
1051 goto do_numeric;
1052 res = __resolve_service(port);
1053 c->port = port;
1054 c->name = res ? strdup(res) : NULL;
1055 c->proto = dg_proto;
1056 c->next = cache_htab[hash];
1057 cache_htab[hash] = c;
1058
1059do_cache:
1060 if (c->name)
1061 return c->name;
1062
1063do_numeric:
aba5acdf
SH		 1064 sprintf(buf, "%u", port);
1065 return buf;
1066}
1067
b217df10 1068static void inet_addr_print(const inet_prefix *a, int port, unsigned int ifindex)
aba5acdf
SH		 1069{
1070 char buf[1024];
1071 const char *ap = buf;
b217df10
VK		 1072 int est_len = addr_width;
1073 const char *ifname = NULL;
aba5acdf
SH		 1074
1075 if (a->family == AF_INET) {
1076 if (a->data[0] == 0) {
1077 buf[0] = '*';
1078 buf[1] = 0;
1079 } else {
a418e451 1080 ap = format_host(AF_INET, 4, a->data);
aba5acdf
SH		 1081 }
1082 } else {
a418e451 1083 ap = format_host(a->family, 16, a->data);
aba5acdf
SH		 1084 est_len = strlen(ap);
1085 if (est_len <= addr_width)
1086 est_len = addr_width;
1087 else
1088 est_len = addr_width + ((est_len-addr_width+3)/4)*4;
1089 }
b217df10 1090
7c8a3cfb 1091 if (ifindex) {
b217df10
VK		 1092 ifname = ll_index_to_name(ifindex);
1093 est_len -= strlen(ifname) + 1; /* +1 for percent char */
4fcfb6bc
MS		 1094 if (est_len < 0)
1095 est_len = 0;
b217df10 1096 }
7c8a3cfb 1097
b217df10
VK		 1098 sock_addr_print_width(est_len, ap, ":", serv_width, resolve_service(port),
1099 ifname);
aba5acdf
SH		 1100}
1101
acd1e437 1102struct aafilter {
aba5acdf
SH		 1103 inet_prefix addr;
1104 int port;
2d293212 1105 unsigned int iface;
ec75249b
LC		 1106 __u32 mark;
1107 __u32 mask;
aba5acdf
SH		 1108 struct aafilter *next;
1109};
1110
d1f28cf1
SH		 1111static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p,
1112 int plen)
aba5acdf
SH		 1113{
1114 if (!inet_addr_match(a, p, plen))
1115 return 0;
7d105b56 1116
aba5acdf
SH		 1117 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1118 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1119 * sockets. Fair? */
1120 if (p->family == AF_INET && a->family == AF_INET6) {
1121 if (a->data[0] == 0 && a->data[1] == 0 &&
1122 a->data[2] == htonl(0xffff)) {
1123 inet_prefix tmp = *a;
acd1e437 1124
aba5acdf
SH		 1125 tmp.data[0] = a->data[3];
1126 return inet_addr_match(&tmp, p, plen);
1127 }
1128 }
1129 return 1;
1130}
1131
d1f28cf1 1132static int unix_match(const inet_prefix *a, const inet_prefix *p)
aba5acdf 1133{
99bb68ff 1134 char *addr, *pattern;
acd1e437 1135
99bb68ff
VK		 1136 memcpy(&addr, a->data, sizeof(addr));
1137 memcpy(&pattern, p->data, sizeof(pattern));
aba5acdf
SH		 1138 if (pattern == NULL)
1139 return 1;
1140 if (addr == NULL)
1141 addr = "";
1142 return !fnmatch(pattern, addr, 0);
1143}
1144
055840f2 1145static int run_ssfilter(struct ssfilter *f, struct sockstat *s)
aba5acdf
SH		 1146{
1147 switch (f->type) {
1148 case SSF_S_AUTO:
1149 {
aba5acdf 1150 if (s->local.family == AF_UNIX) {
99bb68ff 1151 char *p;
acd1e437 1152
99bb68ff 1153 memcpy(&p, s->local.data, sizeof(p));
aba5acdf 1154 return p == NULL || (p[0] == '@' && strlen(p) == 6 &&
ae665a52 1155 strspn(p+1, "0123456789abcdef") == 5);
aba5acdf
SH		 1156 }
1157 if (s->local.family == AF_PACKET)
bbd303d1 1158 return s->lport == 0 && s->local.data[0] == 0;
aba5acdf
SH		 1159 if (s->local.family == AF_NETLINK)
1160 return s->lport < 0;
1161
c29d3792 1162 return is_ephemeral(s->lport);
aba5acdf
SH		 1163 }
1164 case SSF_DCOND:
1165 {
acd1e437
SH		 1166 struct aafilter *a = (void *)f->pred;
1167
aba5acdf
SH		 1168 if (a->addr.family == AF_UNIX)
1169 return unix_match(&s->remote, &a->addr);
1170 if (a->port != -1 && a->port != s->rport)
1171 return 0;
1172 if (a->addr.bitlen) {
1173 do {
1174 if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen))
1175 return 1;
1176 } while ((a = a->next) != NULL);
1177 return 0;
1178 }
1179 return 1;
1180 }
1181 case SSF_SCOND:
1182 {
acd1e437
SH		 1183 struct aafilter *a = (void *)f->pred;
1184
aba5acdf
SH		 1185 if (a->addr.family == AF_UNIX)
1186 return unix_match(&s->local, &a->addr);
1187 if (a->port != -1 && a->port != s->lport)
1188 return 0;
1189 if (a->addr.bitlen) {
1190 do {
1191 if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen))
1192 return 1;
ae665a52 1193 } while ((a = a->next) != NULL);
aba5acdf
SH		 1194 return 0;
1195 }
1196 return 1;
1197 }
1198 case SSF_D_GE:
1199 {
acd1e437
SH		 1200 struct aafilter *a = (void *)f->pred;
1201
aba5acdf
SH		 1202 return s->rport >= a->port;
1203 }
1204 case SSF_D_LE:
1205 {
acd1e437
SH		 1206 struct aafilter *a = (void *)f->pred;
1207
aba5acdf
SH		 1208 return s->rport <= a->port;
1209 }
1210 case SSF_S_GE:
1211 {
acd1e437
SH		 1212 struct aafilter *a = (void *)f->pred;
1213
aba5acdf
SH		 1214 return s->lport >= a->port;
1215 }
1216 case SSF_S_LE:
1217 {
acd1e437
SH		 1218 struct aafilter *a = (void *)f->pred;
1219
aba5acdf
SH		 1220 return s->lport <= a->port;
1221 }
2d293212
DA		 1222 case SSF_DEVCOND:
1223 {
1224 struct aafilter *a = (void *)f->pred;
aba5acdf 1225
2d293212 1226 return s->iface == a->iface;
ec75249b
LC		 1227 }
1228 case SSF_MARKMASK:
1229 {
1230 struct aafilter *a = (void *)f->pred;
1231
1232 return (s->mark & a->mask) == a->mark;
2d293212 1233 }
aba5acdf
SH		 1234 /* Yup. It is recursion. Sorry. */
1235 case SSF_AND:
1236 return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s);
1237 case SSF_OR:
1238 return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s);
1239 case SSF_NOT:
1240 return !run_ssfilter(f->pred, s);
1241 default:
1242 abort();
1243 }
1244}
1245
ae665a52 1246/* Relocate external jumps by reloc. */
b4b0b7d5 1247static void ssfilter_patch(char *a, int len, int reloc)
aba5acdf
SH		 1248{
1249 while (len > 0) {
acd1e437
SH		 1250 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)a;
1251
aba5acdf
SH		 1252 if (op->no == len+4)
1253 op->no += reloc;
1254 len -= op->yes;
1255 a += op->yes;
1256 }
1257 if (len < 0)
1258 abort();
1259}
1260
b4b0b7d5 1261static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
aba5acdf
SH		 1262{
1263 switch (f->type) {
1264 case SSF_S_AUTO:
1265 {
acd1e437
SH		 1266 if (!(*bytecode = malloc(4))) abort();
1267 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
df39de8d 1268 return 4;
aba5acdf
SH		 1269 }
1270 case SSF_DCOND:
1271 case SSF_SCOND:
1272 {
acd1e437 1273 struct aafilter *a = (void *)f->pred;
aba5acdf
SH		 1274 struct aafilter *b;
1275 char *ptr;
351efcde 1276 int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND);
aba5acdf
SH		 1277 int len = 0;
1278
acd1e437 1279 for (b = a; b; b = b->next) {
351efcde 1280 len += 4 + sizeof(struct inet_diag_hostcond);
aba5acdf
SH		 1281 if (a->addr.family == AF_INET6)
1282 len += 16;
1283 else
1284 len += 4;
1285 if (b->next)
1286 len += 4;
1287 }
1288 if (!(ptr = malloc(len))) abort();
1289 *bytecode = ptr;
acd1e437 1290 for (b = a; b; b = b->next) {
351efcde 1291 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr;
aba5acdf 1292 int alen = (a->addr.family == AF_INET6 ? 16 : 4);
351efcde 1293 int oplen = alen + 4 + sizeof(struct inet_diag_hostcond);
acd1e437 1294 struct inet_diag_hostcond *cond = (struct inet_diag_hostcond *)(ptr+4);
aba5acdf 1295
351efcde 1296 *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 };
aba5acdf
SH		 1297 cond->family = a->addr.family;
1298 cond->port = a->port;
1299 cond->prefix_len = a->addr.bitlen;
1300 memcpy(cond->addr, a->addr.data, alen);
1301 ptr += oplen;
1302 if (b->next) {
351efcde
SH		 1303 op = (struct inet_diag_bc_op *)ptr;
1304 *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)};
aba5acdf
SH		 1305 ptr += 4;
1306 }
1307 }
1308 return ptr - *bytecode;
1309 }
1310 case SSF_D_GE:
1311 {
acd1e437
SH		 1312 struct aafilter *x = (void *)f->pred;
1313
1314 if (!(*bytecode = malloc(8))) abort();
1315 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 };
1316 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1317 return 8;
1318 }
1319 case SSF_D_LE:
1320 {
acd1e437
SH		 1321 struct aafilter *x = (void *)f->pred;
1322
1323 if (!(*bytecode = malloc(8))) abort();
1324 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 };
1325 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1326 return 8;
1327 }
1328 case SSF_S_GE:
1329 {
acd1e437
SH		 1330 struct aafilter *x = (void *)f->pred;
1331
1332 if (!(*bytecode = malloc(8))) abort();
1333 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 };
1334 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1335 return 8;
1336 }
1337 case SSF_S_LE:
1338 {
acd1e437
SH		 1339 struct aafilter *x = (void *)f->pred;
1340
1341 if (!(*bytecode = malloc(8))) abort();
1342 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 };
1343 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1344 return 8;
1345 }
1346
1347 case SSF_AND:
1348 {
376fb868 1349 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1350 int l1, l2;
acd1e437 1351
aba5acdf
SH		 1352 l1 = ssfilter_bytecompile(f->pred, &a1);
1353 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1354 if (!l1 || !l2) {
1355 free(a1);
1356 free(a2);
1357 return 0;
1358 }
aba5acdf
SH		 1359 if (!(a = malloc(l1+l2))) abort();
1360 memcpy(a, a1, l1);
1361 memcpy(a+l1, a2, l2);
1362 free(a1); free(a2);
1363 ssfilter_patch(a, l1, l2);
1364 *bytecode = a;
1365 return l1+l2;
1366 }
1367 case SSF_OR:
1368 {
376fb868 1369 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1370 int l1, l2;
acd1e437 1371
aba5acdf
SH		 1372 l1 = ssfilter_bytecompile(f->pred, &a1);
1373 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1374 if (!l1 || !l2) {
1375 free(a1);
1376 free(a2);
1377 return 0;
1378 }
aba5acdf
SH		 1379 if (!(a = malloc(l1+l2+4))) abort();
1380 memcpy(a, a1, l1);
1381 memcpy(a+l1+4, a2, l2);
1382 free(a1); free(a2);
acd1e437 1383 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 };
aba5acdf
SH		 1384 *bytecode = a;
1385 return l1+l2+4;
1386 }
1387 case SSF_NOT:
1388 {
376fb868 1389 char *a1 = NULL, *a;
2a4fa1c3 1390 int l1;
acd1e437 1391
aba5acdf 1392 l1 = ssfilter_bytecompile(f->pred, &a1);
376fb868
DA		 1393 if (!l1) {
1394 free(a1);
1395 return 0;
1396 }
aba5acdf
SH		 1397 if (!(a = malloc(l1+4))) abort();
1398 memcpy(a, a1, l1);
1399 free(a1);
acd1e437 1400 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 };
aba5acdf
SH		 1401 *bytecode = a;
1402 return l1+4;
2d293212
DA		 1403 }
1404 case SSF_DEVCOND:
1405 {
1406 /* bytecompile for SSF_DEVCOND not supported yet */
1407 return 0;
ec75249b
LC		 1408 }
1409 case SSF_MARKMASK:
1410 {
1411 struct aafilter *a = (void *)f->pred;
1412 struct instr {
1413 struct inet_diag_bc_op op;
1414 struct inet_diag_markcond cond;
1415 };
1416 int inslen = sizeof(struct instr);
1417
1418 if (!(*bytecode = malloc(inslen))) abort();
1419 ((struct instr *)*bytecode)[0] = (struct instr) {
1420 { INET_DIAG_BC_MARK_COND, inslen, inslen + 4 },
1421 { a->mark, a->mask},
1422 };
1423
1424 return inslen;
aba5acdf
SH		 1425 }
1426 default:
1427 abort();
1428 }
1429}
1430
b4b0b7d5 1431static int remember_he(struct aafilter *a, struct hostent *he)
aba5acdf 1432{
ae665a52 1433 char **ptr = he->h_addr_list;
aba5acdf
SH		 1434 int cnt = 0;
1435 int len;
1436
1437 if (he->h_addrtype == AF_INET)
1438 len = 4;
1439 else if (he->h_addrtype == AF_INET6)
1440 len = 16;
1441 else
1442 return 0;
1443
1444 while (*ptr) {
1445 struct aafilter *b = a;
acd1e437 1446
aba5acdf
SH		 1447 if (a->addr.bitlen) {
1448 if ((b = malloc(sizeof(*b))) == NULL)
1449 return cnt;
1450 *b = *a;
1451 b->next = a->next;
1452 a->next = b;
1453 }
1454 memcpy(b->addr.data, *ptr, len);
1455 b->addr.bytelen = len;
1456 b->addr.bitlen = len*8;
1457 b->addr.family = he->h_addrtype;
1458 ptr++;
1459 cnt++;
1460 }
1461 return cnt;
1462}
1463
b4b0b7d5 1464static int get_dns_host(struct aafilter *a, const char *addr, int fam)
aba5acdf
SH		 1465{
1466 static int notfirst;
1467 int cnt = 0;
1468 struct hostent *he;
1469
1470 a->addr.bitlen = 0;
1471 if (!notfirst) {
1472 sethostent(1);
1473 notfirst = 1;
1474 }
1475 he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam);
1476 if (he)
1477 cnt = remember_he(a, he);
1478 if (fam == AF_UNSPEC) {
1479 he = gethostbyname2(addr, AF_INET6);
1480 if (he)
1481 cnt += remember_he(a, he);
1482 }
1483 return !cnt;
1484}
1485
acd1e437 1486static int xll_initted;
aba5acdf 1487
b4b0b7d5 1488static void xll_init(void)
aba5acdf
SH		 1489{
1490 struct rtnl_handle rth;
acd1e437 1491
d2468da0
SH		 1492 if (rtnl_open(&rth, 0) < 0)
1493 exit(1);
1494
aba5acdf
SH		 1495 ll_init_map(&rth);
1496 rtnl_close(&rth);
1497 xll_initted = 1;
1498}
1499
b4b0b7d5 1500static const char *xll_index_to_name(int index)
aba5acdf
SH		 1501{
1502 if (!xll_initted)
1503 xll_init();
1504 return ll_index_to_name(index);
1505}
1506
b4b0b7d5 1507static int xll_name_to_index(const char *dev)
aba5acdf
SH		 1508{
1509 if (!xll_initted)
1510 xll_init();
1511 return ll_name_to_index(dev);
1512}
1513
2d293212
DA		 1514void *parse_devcond(char *name)
1515{
1516 struct aafilter a = { .iface = 0 };
1517 struct aafilter *res;
1518
1519 a.iface = xll_name_to_index(name);
1520 if (a.iface == 0) {
1521 char *end;
930d3f28 1522 unsigned long n;
2d293212 1523
930d3f28
DA		 1524 n = strtoul(name, &end, 0);
1525 if (!end || end == name || *end || n > UINT_MAX)
2d293212 1526 return NULL;
930d3f28
DA		 1527
1528 a.iface = n;
2d293212
DA		 1529 }
1530
1531 res = malloc(sizeof(*res));
1532 *res = a;
1533
1534 return res;
1535}
1536
7871f7db 1537void *parse_hostcond(char *addr, bool is_port)
aba5acdf
SH		 1538{
1539 char *port = NULL;
1527a17e 1540 struct aafilter a = { .port = -1 };
aba5acdf 1541 struct aafilter *res;
1527a17e 1542 int fam = preferred_family;
9db7bf15 1543 struct filter *f = &current_filter;
aba5acdf 1544
1527a17e 1545 if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) {
aba5acdf 1546 char *p;
acd1e437 1547
aba5acdf
SH		 1548 a.addr.family = AF_UNIX;
1549 if (strncmp(addr, "unix:", 5) == 0)
acd1e437 1550 addr += 5;
aba5acdf
SH		 1551 p = strdup(addr);
1552 a.addr.bitlen = 8*strlen(p);
99bb68ff 1553 memcpy(a.addr.data, &p, sizeof(p));
9db7bf15 1554 fam = AF_UNIX;
aba5acdf
SH		 1555 goto out;
1556 }
1557
1527a17e 1558 if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) {
aba5acdf
SH		 1559 a.addr.family = AF_PACKET;
1560 a.addr.bitlen = 0;
1561 if (strncmp(addr, "link:", 5) == 0)
acd1e437 1562 addr += 5;
aba5acdf
SH		 1563 port = strchr(addr, ':');
1564 if (port) {
1565 *port = 0;
1566 if (port[1] && strcmp(port+1, "*")) {
1567 if (get_integer(&a.port, port+1, 0)) {
1568 if ((a.port = xll_name_to_index(port+1)) <= 0)
1569 return NULL;
1570 }
1571 }
1572 }
1573 if (addr[0] && strcmp(addr, "*")) {
1574 unsigned short tmp;
acd1e437 1575
aba5acdf
SH		 1576 a.addr.bitlen = 32;
1577 if (ll_proto_a2n(&tmp, addr))
1578 return NULL;
1579 a.addr.data[0] = ntohs(tmp);
1580 }
9db7bf15 1581 fam = AF_PACKET;
aba5acdf
SH		 1582 goto out;
1583 }
1584
1527a17e 1585 if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) {
aba5acdf
SH		 1586 a.addr.family = AF_NETLINK;
1587 a.addr.bitlen = 0;
1588 if (strncmp(addr, "netlink:", 8) == 0)
acd1e437 1589 addr += 8;
aba5acdf
SH		 1590 port = strchr(addr, ':');
1591 if (port) {
1592 *port = 0;
1593 if (port[1] && strcmp(port+1, "*")) {
1594 if (get_integer(&a.port, port+1, 0)) {
1595 if (strcmp(port+1, "kernel") == 0)
1596 a.port = 0;
1597 else
1598 return NULL;
1599 }
1600 }
1601 }
1602 if (addr[0] && strcmp(addr, "*")) {
1603 a.addr.bitlen = 32;
b00daf6a 1604 if (nl_proto_a2n(&a.addr.data[0], addr) == -1)
1605 return NULL;
aba5acdf 1606 }
9db7bf15 1607 fam = AF_NETLINK;
aba5acdf
SH		 1608 goto out;
1609 }
1610
1527a17e 1611 if (fam == AF_INET || !strncmp(addr, "inet:", 5)) {
aba5acdf 1612 fam = AF_INET;
1527a17e
VK		 1613 if (!strncmp(addr, "inet:", 5))
1614 addr += 5;
1615 } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) {
aba5acdf 1616 fam = AF_INET6;
1527a17e
VK		 1617 if (!strncmp(addr, "inet6:", 6))
1618 addr += 6;
aba5acdf
SH		 1619 }
1620
1621 /* URL-like literal [] */
1622 if (addr[0] == '[') {
1623 addr++;
1624 if ((port = strchr(addr, ']')) == NULL)
1625 return NULL;
1626 *port++ = 0;
1627 } else if (addr[0] == '*') {
1628 port = addr+1;
1629 } else {
1630 port = strrchr(strchr(addr, '/') ? : addr, ':');
1631 }
7871f7db
VK		 1632
1633 if (is_port)
1634 port = addr;
1635
aba5acdf 1636 if (port && *port) {
7871f7db
VK		 1637 if (*port == ':')
1638 *port++ = 0;
1639
aba5acdf
SH		 1640 if (*port && *port != '*') {
1641 if (get_integer(&a.port, port, 0)) {
1642 struct servent *se1 = NULL;
1643 struct servent *se2 = NULL;
acd1e437 1644
aba5acdf
SH		 1645 if (current_filter.dbs&(1<<UDP_DB))
1646 se1 = getservbyname(port, UDP_PROTO);
1647 if (current_filter.dbs&(1<<TCP_DB))
1648 se2 = getservbyname(port, TCP_PROTO);
1649 if (se1 && se2 && se1->s_port != se2->s_port) {
1650 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1651 return NULL;
1652 }
1653 if (!se1)
1654 se1 = se2;
1655 if (se1) {
1656 a.port = ntohs(se1->s_port);
1657 } else {
1658 struct scache *s;
acd1e437 1659
aba5acdf
SH		 1660 for (s = rlist; s; s = s->next) {
1661 if ((s->proto == UDP_PROTO &&
1662 (current_filter.dbs&(1<<UDP_DB))) ||
1663 (s->proto == TCP_PROTO &&
1664 (current_filter.dbs&(1<<TCP_DB)))) {
1665 if (s->name && strcmp(s->name, port) == 0) {
1666 if (a.port > 0 && a.port != s->port) {
1667 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1668 return NULL;
1669 }
1670 a.port = s->port;
1671 }
1672 }
1673 }
1674 if (a.port <= 0) {
1675 fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port);
1676 return NULL;
1677 }
1678 }
1679 }
1680 }
1681 }
7871f7db 1682 if (!is_port && addr && *addr && *addr != '*') {
aba5acdf
SH		 1683 if (get_prefix_1(&a.addr, addr, fam)) {
1684 if (get_dns_host(&a, addr, fam)) {
1685 fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr);
1686 return NULL;
1687 }
1688 }
1689 }
1690
9db7bf15 1691out:
1527a17e 1692 if (fam != AF_UNSPEC) {
e56a959e 1693 int states = f->states;
1527a17e 1694 f->families = 0;
9db7bf15 1695 filter_af_set(f, fam);
e56a959e 1696 filter_states_set(f, states);
1527a17e 1697 }
9db7bf15 1698
aba5acdf
SH		 1699 res = malloc(sizeof(*res));
1700 if (res)
1701 memcpy(res, &a, sizeof(a));
1702 return res;
1703}
1704
ec75249b
LC		 1705void *parse_markmask(const char *markmask)
1706{
1707 struct aafilter a, *res;
1708
1709 if (strchr(markmask, '/')) {
1710 if (sscanf(markmask, "%i/%i", &a.mark, &a.mask) != 2)
1711 return NULL;
1712 } else {
1713 a.mask = 0xffffffff;
1714 if (sscanf(markmask, "%i", &a.mark) != 1)
1715 return NULL;
1716 }
1717
1718 res = malloc(sizeof(*res));
1719 if (res)
1720 memcpy(res, &a, sizeof(a));
1721 return res;
1722}
1723
8250bc9f
VK		 1724static char *proto_name(int protocol)
1725{
1726 switch (protocol) {
235c4453
NA		 1727 case 0:
1728 return "raw";
8250bc9f
VK		 1729 case IPPROTO_UDP:
1730 return "udp";
1731 case IPPROTO_TCP:
1732 return "tcp";
f89d46ad
PS		 1733 case IPPROTO_SCTP:
1734 return "sctp";
8250bc9f
VK		 1735 case IPPROTO_DCCP:
1736 return "dccp";
1737 }
1738
1739 return "???";
1740}
1741
055840f2 1742static void inet_stats_print(struct sockstat *s, int protocol)
8250bc9f
VK		 1743{
1744 char *buf = NULL;
1745
2d791bc8 1746 sock_state_print(s, proto_name(protocol));
8250bc9f 1747
b217df10
VK		 1748 inet_addr_print(&s->local, s->lport, s->iface);
1749 inet_addr_print(&s->remote, s->rport, 0);
8250bc9f 1750
8250bc9f
VK		 1751 if (show_proc_ctx || show_sock_ctx) {
1752 if (find_entry(s->ino, &buf,
1753 (show_proc_ctx & show_sock_ctx) ?
1754 PROC_SOCK_CTX : PROC_CTX) > 0) {
1755 printf(" users:(%s)", buf);
1756 free(buf);
1757 }
1758 } else if (show_users) {
1759 if (find_entry(s->ino, &buf, USERS) > 0) {
1760 printf(" users:(%s)", buf);
1761 free(buf);
1762 }
1763 }
1764}
1765
055840f2 1766static int proc_parse_inet_addr(char *loc, char *rem, int family, struct
acd1e437 1767 sockstat * s)
8250bc9f
VK		 1768{
1769 s->local.family = s->remote.family = family;
1770 if (family == AF_INET) {
acd1e437
SH		 1771 sscanf(loc, "%x:%x", s->local.data, (unsigned *)&s->lport);
1772 sscanf(rem, "%x:%x", s->remote.data, (unsigned *)&s->rport);
8250bc9f
VK		 1773 s->local.bytelen = s->remote.bytelen = 4;
1774 return 0;
1775 } else {
1776 sscanf(loc, "%08x%08x%08x%08x:%x",
1777 s->local.data,
1778 s->local.data + 1,
1779 s->local.data + 2,
1780 s->local.data + 3,
1781 &s->lport);
1782 sscanf(rem, "%08x%08x%08x%08x:%x",
1783 s->remote.data,
1784 s->remote.data + 1,
1785 s->remote.data + 2,
1786 s->remote.data + 3,
1787 &s->rport);
1788 s->local.bytelen = s->remote.bytelen = 16;
1789 return 0;
1790 }
1791 return -1;
1792}
1793
1794static int proc_inet_split_line(char *line, char **loc, char **rem, char **data)
aba5acdf 1795{
aba5acdf 1796 char *p;
ae665a52 1797
aba5acdf
SH		 1798 if ((p = strchr(line, ':')) == NULL)
1799 return -1;
ae665a52 1800
8250bc9f
VK		 1801 *loc = p+2;
1802 if ((p = strchr(*loc, ':')) == NULL)
aba5acdf 1803 return -1;
ae665a52 1804
8250bc9f
VK		 1805 p[5] = 0;
1806 *rem = p+6;
1807 if ((p = strchr(*rem, ':')) == NULL)
aba5acdf 1808 return -1;
8250bc9f 1809
aba5acdf 1810 p[5] = 0;
8250bc9f
VK		 1811 *data = p+6;
1812 return 0;
1813}
ae665a52 1814
8250bc9f
VK		 1815static char *sprint_bw(char *buf, double bw)
1816{
1817 if (bw > 1000000.)
acd1e437 1818 sprintf(buf, "%.1fM", bw / 1000000.);
8250bc9f 1819 else if (bw > 1000.)
acd1e437 1820 sprintf(buf, "%.1fK", bw / 1000.);
8250bc9f
VK		 1821 else
1822 sprintf(buf, "%g", bw);
aba5acdf 1823
8250bc9f
VK		 1824 return buf;
1825}
ae665a52 1826
f89d46ad
PS		 1827static void sctp_stats_print(struct sctp_info *s)
1828{
1829 if (s->sctpi_tag)
1830 printf(" tag:%x", s->sctpi_tag);
1831 if (s->sctpi_state)
1832 printf(" state:%s", sctp_sstate_name[s->sctpi_state]);
1833 if (s->sctpi_rwnd)
1834 printf(" rwnd:%d", s->sctpi_rwnd);
1835 if (s->sctpi_unackdata)
1836 printf(" unackdata:%d", s->sctpi_unackdata);
1837 if (s->sctpi_penddata)
1838 printf(" penddata:%d", s->sctpi_penddata);
1839 if (s->sctpi_instrms)
1840 printf(" instrms:%d", s->sctpi_instrms);
1841 if (s->sctpi_outstrms)
1842 printf(" outstrms:%d", s->sctpi_outstrms);
1843 if (s->sctpi_inqueue)
1844 printf(" inqueue:%d", s->sctpi_inqueue);
1845 if (s->sctpi_outqueue)
1846 printf(" outqueue:%d", s->sctpi_outqueue);
1847 if (s->sctpi_overall_error)
1848 printf(" overerr:%d", s->sctpi_overall_error);
1849 if (s->sctpi_max_burst)
1850 printf(" maxburst:%d", s->sctpi_max_burst);
1851 if (s->sctpi_maxseg)
1852 printf(" maxseg:%d", s->sctpi_maxseg);
1853 if (s->sctpi_peer_rwnd)
1854 printf(" prwnd:%d", s->sctpi_peer_rwnd);
1855 if (s->sctpi_peer_tag)
1856 printf(" ptag:%x", s->sctpi_peer_tag);
1857 if (s->sctpi_peer_capable)
1858 printf(" pcapable:%d", s->sctpi_peer_capable);
1859 if (s->sctpi_peer_sack)
1860 printf(" psack:%d", s->sctpi_peer_sack);
1861 if (s->sctpi_s_autoclose)
1862 printf(" autoclose:%d", s->sctpi_s_autoclose);
1863 if (s->sctpi_s_adaptation_ind)
1864 printf(" adapind:%d", s->sctpi_s_adaptation_ind);
1865 if (s->sctpi_s_pd_point)
1866 printf(" pdpoint:%d", s->sctpi_s_pd_point);
1867 if (s->sctpi_s_nodelay)
1868 printf(" nodealy:%d", s->sctpi_s_nodelay);
1869 if (s->sctpi_s_disable_fragments)
1870 printf(" nofrag:%d", s->sctpi_s_disable_fragments);
1871 if (s->sctpi_s_v4mapped)
1872 printf(" v4mapped:%d", s->sctpi_s_v4mapped);
1873 if (s->sctpi_s_frag_interleave)
1874 printf(" fraginl:%d", s->sctpi_s_frag_interleave);
1875}
1876
8250bc9f
VK		 1877static void tcp_stats_print(struct tcpstat *s)
1878{
1879 char b1[64];
1880
1881 if (s->has_ts_opt)
1882 printf(" ts");
1883 if (s->has_sack_opt)
1884 printf(" sack");
1885 if (s->has_ecn_opt)
1886 printf(" ecn");
1887 if (s->has_ecnseen_opt)
1888 printf(" ecnseen");
1889 if (s->has_fastopen_opt)
1890 printf(" fastopen");
d2055ea5 1891 if (s->cong_alg[0])
8250bc9f
VK		 1892 printf(" %s", s->cong_alg);
1893 if (s->has_wscale_opt)
1894 printf(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale);
1895 if (s->rto)
1896 printf(" rto:%g", s->rto);
1897 if (s->backoff)
1898 printf(" backoff:%u", s->backoff);
1899 if (s->rtt)
1900 printf(" rtt:%g/%g", s->rtt, s->rttvar);
1901 if (s->ato)
1902 printf(" ato:%g", s->ato);
1903
1904 if (s->qack)
1905 printf(" qack:%d", s->qack);
1906 if (s->qack & 1)
1907 printf(" bidir");
1908
1909 if (s->mss)
1910 printf(" mss:%d", s->mss);
3bf5445c 1911 if (s->cwnd)
d1f338b3 1912 printf(" cwnd:%u", s->cwnd);
8250bc9f
VK		 1913 if (s->ssthresh)
1914 printf(" ssthresh:%d", s->ssthresh);
1915
1a4dda71
ED		 1916 if (s->bytes_acked)
1917 printf(" bytes_acked:%llu", s->bytes_acked);
1918 if (s->bytes_received)
1919 printf(" bytes_received:%llu", s->bytes_received);
ecb435ea
CG		 1920 if (s->segs_out)
1921 printf(" segs_out:%u", s->segs_out);
1922 if (s->segs_in)
1923 printf(" segs_in:%u", s->segs_in);
414aeec9
MKL		 1924 if (s->data_segs_out)
1925 printf(" data_segs_out:%u", s->data_segs_out);
1926 if (s->data_segs_in)
1927 printf(" data_segs_in:%u", s->data_segs_in);
1a4dda71 1928
8250bc9f
VK		 1929 if (s->dctcp && s->dctcp->enabled) {
1930 struct dctcpstat *dctcp = s->dctcp;
1931
3bf5445c 1932 printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
8250bc9f
VK		 1933 dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn,
1934 dctcp->ab_tot);
1935 } else if (s->dctcp) {
3bf5445c 1936 printf(" dctcp:fallback_mode");
8250bc9f
VK		 1937 }
1938
2f0f9aef
NC		 1939 if (s->bbr_info) {
1940 __u64 bw;
1941
1942 bw = s->bbr_info->bbr_bw_hi;
1943 bw <<= 32;
1944 bw |= s->bbr_info->bbr_bw_lo;
1945
1946 printf(" bbr:(bw:%sbps,mrtt:%g",
1947 sprint_bw(b1, bw * 8.0),
1948 (double)s->bbr_info->bbr_min_rtt / 1000.0);
1949 if (s->bbr_info->bbr_pacing_gain)
1950 printf(",pacing_gain:%g",
1951 (double)s->bbr_info->bbr_pacing_gain / 256.0);
1952 if (s->bbr_info->bbr_cwnd_gain)
1953 printf(",cwnd_gain:%g",
1954 (double)s->bbr_info->bbr_cwnd_gain / 256.0);
1955 printf(")");
1956 }
1957
8250bc9f
VK		 1958 if (s->send_bps)
1959 printf(" send %sbps", sprint_bw(b1, s->send_bps));
1960 if (s->lastsnd)
1961 printf(" lastsnd:%u", s->lastsnd);
1962 if (s->lastrcv)
1963 printf(" lastrcv:%u", s->lastrcv);
1964 if (s->lastack)
1965 printf(" lastack:%u", s->lastack);
1966
1967 if (s->pacing_rate) {
1968 printf(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate));
1969 if (s->pacing_rate_max)
1970 printf("/%sbps", sprint_bw(b1,
1971 s->pacing_rate_max));
1972 }
1973
1974 if (s->unacked)
1975 printf(" unacked:%u", s->unacked);
1976 if (s->retrans || s->retrans_total)
1977 printf(" retrans:%u/%u", s->retrans, s->retrans_total);
1978 if (s->lost)
1979 printf(" lost:%u", s->lost);
055840f2 1980 if (s->sacked && s->ss.state != SS_LISTEN)
8250bc9f
VK		 1981 printf(" sacked:%u", s->sacked);
1982 if (s->fackets)
1983 printf(" fackets:%u", s->fackets);
1984 if (s->reordering != 3)
1985 printf(" reordering:%d", s->reordering);
1986 if (s->rcv_rtt)
1987 printf(" rcv_rtt:%g", s->rcv_rtt);
1988 if (s->rcv_space)
1989 printf(" rcv_space:%d", s->rcv_space);
9e99e495
SH		 1990 if (s->not_sent)
1991 printf(" notsent:%u", s->not_sent);
1992 if (s->min_rtt)
1993 printf(" minrtt:%g", s->min_rtt);
8250bc9f
VK		 1994}
1995
055840f2
VK		 1996static void tcp_timer_print(struct tcpstat *s)
1997{
1998 if (s->timer) {
1999 if (s->timer > 4)
2000 s->timer = 5;
2001 printf(" timer:(%s,%s,%d)",
2002 tmr_name[s->timer],
2003 print_ms_timer(s->timeout),
2004 s->retrans);
2005 }
2006}
2007
f89d46ad
PS		 2008static void sctp_timer_print(struct tcpstat *s)
2009{
2010 if (s->timer)
2011 printf(" timer:(T3_RTX,%s,%d)",
2012 print_ms_timer(s->timeout), s->retrans);
2013}
2014
8250bc9f
VK		 2015static int tcp_show_line(char *line, const struct filter *f, int family)
2016{
2017 int rto = 0, ato = 0;
2018 struct tcpstat s = {};
2019 char *loc, *rem, *data;
2020 char opt[256];
2021 int n;
2022 int hz = get_user_hz();
2023
2024 if (proc_inet_split_line(line, &loc, &rem, &data))
2025 return -1;
2026
2027 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2028
8250bc9f
VK		 2029 if (!(f->states & (1 << state)))
2030 return 0;
2031
055840f2 2032 proc_parse_inet_addr(loc, rem, family, &s.ss);
ae665a52 2033
055840f2 2034 if (f->f && run_ssfilter(f->f, &s.ss) == 0)
aba5acdf 2035 return 0;
ae665a52 2036
aba5acdf 2037 opt[0] = 0;
d1f338b3 2038 n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
055840f2
VK		 2039 &s.ss.state, &s.ss.wq, &s.ss.rq,
2040 &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes,
2041 &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd,
2042 &s.ssthresh, opt);
ae665a52 2043
aba5acdf
SH		 2044 if (n < 17)
2045 opt[0] = 0;
ae665a52 2046
aba5acdf 2047 if (n < 12) {
8250bc9f 2048 rto = 0;
aba5acdf
SH		 2049 s.cwnd = 2;
2050 s.ssthresh = -1;
8250bc9f 2051 ato = s.qack = 0;
aba5acdf 2052 }
ae665a52 2053
8250bc9f
VK		 2054 s.retrans = s.timer != 1 ? s.probes : s.retrans;
2055 s.timeout = (s.timeout * 1000 + hz - 1) / hz;
2056 s.ato = (double)ato / hz;
2057 s.qack /= 2;
2058 s.rto = (double)rto;
2059 s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh;
2060 s.rto = s.rto != 3 * hz ? s.rto / hz : 0;
ae665a52 2061
055840f2
VK		 2062 inet_stats_print(&s.ss, IPPROTO_TCP);
2063
2064 if (show_options)
2065 tcp_timer_print(&s);
116ac927 2066
aba5acdf 2067 if (show_details) {
f1b39e1b 2068 sock_details_print(&s.ss);
aba5acdf
SH		 2069 if (opt[0])
2070 printf(" opt:\"%s\"", opt);
2071 }
aba5acdf 2072
8250bc9f
VK		 2073 if (show_tcpinfo)
2074 tcp_stats_print(&s);
2075
2076 printf("\n");
aba5acdf
SH		 2077 return 0;
2078}
2079
ab01dbbb
SH		 2080static int generic_record_read(FILE *fp,
2081 int (*worker)(char*, const struct filter *, int),
2082 const struct filter *f, int fam)
aba5acdf 2083{
ab01dbbb 2084 char line[256];
aba5acdf 2085
ab01dbbb
SH		 2086 /* skip header */
2087 if (fgets(line, sizeof(line), fp) == NULL)
aba5acdf 2088 goto outerr;
ab01dbbb
SH		 2089
2090 while (fgets(line, sizeof(line), fp) != NULL) {
2091 int n = strlen(line);
acd1e437 2092
ab01dbbb
SH		 2093 if (n == 0 || line[n-1] != '\n') {
2094 errno = -EINVAL;
2095 return -1;
aba5acdf 2096 }
ab01dbbb 2097 line[n-1] = 0;
aba5acdf 2098
ab01dbbb
SH		 2099 if (worker(line, f, fam) < 0)
2100 return 0;
2101 }
aba5acdf 2102outerr:
ab01dbbb
SH		 2103
2104 return ferror(fp) ? -1 : 0;
aba5acdf 2105}
ae665a52 2106
51ff9f24
HFS		 2107static void print_skmeminfo(struct rtattr *tb[], int attrtype)
2108{
2109 const __u32 *skmeminfo;
db08bdb8
VK		 2110
2111 if (!tb[attrtype]) {
2112 if (attrtype == INET_DIAG_SKMEMINFO) {
2113 if (!tb[INET_DIAG_MEMINFO])
2114 return;
2115
2116 const struct inet_diag_meminfo *minfo =
2117 RTA_DATA(tb[INET_DIAG_MEMINFO]);
2118
2119 printf(" mem:(r%u,w%u,f%u,t%u)",
2120 minfo->idiag_rmem,
2121 minfo->idiag_wmem,
2122 minfo->idiag_fmem,
2123 minfo->idiag_tmem);
2124 }
51ff9f24 2125 return;
db08bdb8
VK		 2126 }
2127
51ff9f24
HFS		 2128 skmeminfo = RTA_DATA(tb[attrtype]);
2129
2130 printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2131 skmeminfo[SK_MEMINFO_RMEM_ALLOC],
2132 skmeminfo[SK_MEMINFO_RCVBUF],
2133 skmeminfo[SK_MEMINFO_WMEM_ALLOC],
2134 skmeminfo[SK_MEMINFO_SNDBUF],
2135 skmeminfo[SK_MEMINFO_FWD_ALLOC],
2136 skmeminfo[SK_MEMINFO_WMEM_QUEUED],
2137 skmeminfo[SK_MEMINFO_OPTMEM]);
2138
2139 if (RTA_PAYLOAD(tb[attrtype]) >=
2140 (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32))
2141 printf(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]);
2142
6df9c7a0
ED		 2143 if (RTA_PAYLOAD(tb[attrtype]) >=
2144 (SK_MEMINFO_DROPS + 1) * sizeof(__u32))
2145 printf(",d%u", skmeminfo[SK_MEMINFO_DROPS]);
2146
51ff9f24
HFS		 2147 printf(")");
2148}
2149
8250bc9f
VK		 2150#define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2151
5b816047
PE		 2152static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2153 struct rtattr *tb[])
7d105b56 2154{
b4b0b7d5 2155 double rtt = 0;
8250bc9f 2156 struct tcpstat s = {};
7d105b56 2157
055840f2
VK		 2158 s.ss.state = r->idiag_state;
2159
db08bdb8 2160 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
7d105b56 2161
351efcde 2162 if (tb[INET_DIAG_INFO]) {
05e18118 2163 struct tcp_info *info;
351efcde 2164 int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
05e18118
SH		 2165
2166 /* workaround for older kernels with less fields */
2167 if (len < sizeof(*info)) {
2168 info = alloca(sizeof(*info));
351efcde 2169 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
656e8fdd 2170 memset((char *)info + len, 0, sizeof(*info) - len);
05e18118 2171 } else
351efcde 2172 info = RTA_DATA(tb[INET_DIAG_INFO]);
05e18118 2173
b4b0b7d5 2174 if (show_options) {
8250bc9f
VK		 2175 s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS);
2176 s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK);
2177 s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN);
2178 s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN);
2179 s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA);
b4b0b7d5 2180 }
52d5ac3f 2181
d2055ea5
ED		 2182 if (tb[INET_DIAG_CONG])
2183 strncpy(s.cong_alg,
2184 rta_getattr_str(tb[INET_DIAG_CONG]),
2185 sizeof(s.cong_alg) - 1);
8250bc9f
VK		 2186
2187 if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) {
2188 s.has_wscale_opt = true;
2189 s.snd_wscale = info->tcpi_snd_wscale;
2190 s.rcv_wscale = info->tcpi_rcv_wscale;
2191 }
ea8fc104 2192
7d105b56 2193 if (info->tcpi_rto && info->tcpi_rto != 3000000)
8250bc9f
VK		 2194 s.rto = (double)info->tcpi_rto / 1000;
2195
2196 s.backoff = info->tcpi_backoff;
2197 s.rtt = (double)info->tcpi_rtt / 1000;
2198 s.rttvar = (double)info->tcpi_rttvar / 1000;
11ba90fc 2199 s.ato = (double)info->tcpi_ato / 1000;
8250bc9f
VK		 2200 s.mss = info->tcpi_snd_mss;
2201 s.rcv_space = info->tcpi_rcv_space;
2202 s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000;
2203 s.lastsnd = info->tcpi_last_data_sent;
2204 s.lastrcv = info->tcpi_last_data_recv;
2205 s.lastack = info->tcpi_last_ack_recv;
2206 s.unacked = info->tcpi_unacked;
2207 s.retrans = info->tcpi_retrans;
2208 s.retrans_total = info->tcpi_total_retrans;
2209 s.lost = info->tcpi_lost;
2210 s.sacked = info->tcpi_sacked;
2211 s.reordering = info->tcpi_reordering;
2212 s.rcv_space = info->tcpi_rcv_space;
2213 s.cwnd = info->tcpi_snd_cwnd;
2214
7d105b56 2215 if (info->tcpi_snd_ssthresh < 0xFFFF)
8250bc9f 2216 s.ssthresh = info->tcpi_snd_ssthresh;
52d5ac3f 2217
b4b0b7d5 2218 rtt = (double) info->tcpi_rtt;
351efcde 2219 if (tb[INET_DIAG_VEGASINFO]) {
05e18118 2220 const struct tcpvegas_info *vinfo
351efcde 2221 = RTA_DATA(tb[INET_DIAG_VEGASINFO]);
7d105b56 2222
ae665a52 2223 if (vinfo->tcpv_enabled &&
8250bc9f 2224 vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff)
ea8fc104 2225 rtt = vinfo->tcpv_rtt;
b4b0b7d5
SH		 2226 }
2227
907e1aca 2228 if (tb[INET_DIAG_DCTCPINFO]) {
8250bc9f
VK		 2229 struct dctcpstat *dctcp = malloc(sizeof(struct
2230 dctcpstat));
2231
907e1aca
DB		 2232 const struct tcp_dctcp_info *dinfo
2233 = RTA_DATA(tb[INET_DIAG_DCTCPINFO]);
2234
8250bc9f
VK		 2235 dctcp->enabled = !!dinfo->dctcp_enabled;
2236 dctcp->ce_state = dinfo->dctcp_ce_state;
2237 dctcp->alpha = dinfo->dctcp_alpha;
2238 dctcp->ab_ecn = dinfo->dctcp_ab_ecn;
2239 dctcp->ab_tot = dinfo->dctcp_ab_tot;
2240 s.dctcp = dctcp;
907e1aca
DB		 2241 }
2242
2f0f9aef
NC		 2243 if (tb[INET_DIAG_BBRINFO]) {
2244 const void *bbr_info = RTA_DATA(tb[INET_DIAG_BBRINFO]);
2245 int len = min(RTA_PAYLOAD(tb[INET_DIAG_BBRINFO]),
2246 sizeof(*s.bbr_info));
2247
2248 s.bbr_info = calloc(1, sizeof(*s.bbr_info));
2249 if (s.bbr_info && bbr_info)
2250 memcpy(s.bbr_info, bbr_info, len);
2251 }
2252
b4b0b7d5 2253 if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
8250bc9f
VK		 2254 s.send_bps = (double) info->tcpi_snd_cwnd *
2255 (double)info->tcpi_snd_mss * 8000000. / rtt;
7d105b56 2256 }
b4b0b7d5 2257
eb6028b2 2258 if (info->tcpi_pacing_rate &&
8250bc9f
VK		 2259 info->tcpi_pacing_rate != ~0ULL) {
2260 s.pacing_rate = info->tcpi_pacing_rate * 8.;
eb6028b2
ED		 2261
2262 if (info->tcpi_max_pacing_rate &&
8250bc9f
VK		 2263 info->tcpi_max_pacing_rate != ~0ULL)
2264 s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.;
eb6028b2 2265 }
1a4dda71
ED		 2266 s.bytes_acked = info->tcpi_bytes_acked;
2267 s.bytes_received = info->tcpi_bytes_received;
ecb435ea
CG		 2268 s.segs_out = info->tcpi_segs_out;
2269 s.segs_in = info->tcpi_segs_in;
414aeec9
MKL		 2270 s.data_segs_out = info->tcpi_data_segs_out;
2271 s.data_segs_in = info->tcpi_data_segs_in;
9e99e495 2272 s.not_sent = info->tcpi_notsent_bytes;
d9ba887e
ED		 2273 if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U)
2274 s.min_rtt = (double) info->tcpi_min_rtt / 1000;
8250bc9f 2275 tcp_stats_print(&s);
92de1c2c 2276 free(s.dctcp);
2f0f9aef 2277 free(s.bbr_info);
77a8ca81 2278 }
77a8ca81
PE		 2279}
2280
f89d46ad
PS		 2281static const char *format_host_sa(struct sockaddr_storage *sa)
2282{
2283 union {
2284 struct sockaddr_in sin;
2285 struct sockaddr_in6 sin6;
2286 } *saddr = (void *)sa;
2287
2288 switch (sa->ss_family) {
2289 case AF_INET:
2290 return format_host(AF_INET, 4, &saddr->sin.sin_addr);
2291 case AF_INET6:
2292 return format_host(AF_INET6, 16, &saddr->sin6.sin6_addr);
2293 default:
2294 return "";
2295 }
2296}
2297
2298static void sctp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2299 struct rtattr *tb[])
2300{
2301 struct sockaddr_storage *sa;
2302 int len;
2303
2304 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
2305
2306 if (tb[INET_DIAG_LOCALS]) {
2307 len = RTA_PAYLOAD(tb[INET_DIAG_LOCALS]);
2308 sa = RTA_DATA(tb[INET_DIAG_LOCALS]);
2309
2310 printf("locals:%s", format_host_sa(sa));
2311 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2312 printf(",%s", format_host_sa(sa));
2313
2314 }
2315 if (tb[INET_DIAG_PEERS]) {
2316 len = RTA_PAYLOAD(tb[INET_DIAG_PEERS]);
2317 sa = RTA_DATA(tb[INET_DIAG_PEERS]);
2318
2319 printf(" peers:%s", format_host_sa(sa));
2320 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2321 printf(",%s", format_host_sa(sa));
2322 }
2323 if (tb[INET_DIAG_INFO]) {
2324 struct sctp_info *info;
2325 len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
2326
2327 /* workaround for older kernels with less fields */
2328 if (len < sizeof(*info)) {
2329 info = alloca(sizeof(*info));
2330 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
2331 memset((char *)info + len, 0, sizeof(*info) - len);
2332 } else
2333 info = RTA_DATA(tb[INET_DIAG_INFO]);
2334
2335 sctp_stats_print(info);
2336 }
2337}
2338
82d73ea0 2339static void parse_diag_msg(struct nlmsghdr *nlh, struct sockstat *s)
aba5acdf 2340{
acd1e437 2341 struct rtattr *tb[INET_DIAG_MAX+1];
351efcde 2342 struct inet_diag_msg *r = NLMSG_DATA(nlh);
aba5acdf 2343
acd1e437 2344 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
5b816047
PE		 2345 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
2346
82d73ea0
DA		 2347 s->state = r->idiag_state;
2348 s->local.family = s->remote.family = r->idiag_family;
2349 s->lport = ntohs(r->id.idiag_sport);
2350 s->rport = ntohs(r->id.idiag_dport);
2351 s->wq = r->idiag_wqueue;
2352 s->rq = r->idiag_rqueue;
2353 s->ino = r->idiag_inode;
2354 s->uid = r->idiag_uid;
2355 s->iface = r->id.idiag_if;
2356 s->sk = cookie_sk_get(&r->id.idiag_cookie[0]);
2357
ec75249b
LC		 2358 s->mark = 0;
2359 if (tb[INET_DIAG_MARK])
2360 s->mark = *(__u32 *) RTA_DATA(tb[INET_DIAG_MARK]);
2361
82d73ea0
DA		 2362 if (s->local.family == AF_INET)
2363 s->local.bytelen = s->remote.bytelen = 4;
2364 else
2365 s->local.bytelen = s->remote.bytelen = 16;
8250bc9f 2366
82d73ea0
DA		 2367 memcpy(s->local.data, r->id.idiag_src, s->local.bytelen);
2368 memcpy(s->remote.data, r->id.idiag_dst, s->local.bytelen);
2369}
aba5acdf 2370
82d73ea0
DA		 2371static int inet_show_sock(struct nlmsghdr *nlh,
2372 struct sockstat *s,
2373 int protocol)
2374{
2375 struct rtattr *tb[INET_DIAG_MAX+1];
2376 struct inet_diag_msg *r = NLMSG_DATA(nlh);
2377
2378 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
2379 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
aba5acdf 2380
6885e3bf
CG		 2381 if (tb[INET_DIAG_PROTOCOL])
2382 protocol = *(__u8 *)RTA_DATA(tb[INET_DIAG_PROTOCOL]);
2383
82d73ea0 2384 inet_stats_print(s, protocol);
116ac927 2385
055840f2
VK		 2386 if (show_options) {
2387 struct tcpstat t = {};
2388
2389 t.timer = r->idiag_timer;
2390 t.timeout = r->idiag_expires;
2391 t.retrans = r->idiag_retrans;
f89d46ad
PS		 2392 if (protocol == IPPROTO_SCTP)
2393 sctp_timer_print(&t);
2394 else
2395 tcp_timer_print(&t);
055840f2
VK		 2396 }
2397
aba5acdf 2398 if (show_details) {
82d73ea0
DA		 2399 sock_details_print(s);
2400 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY]) {
f32dc746 2401 unsigned char v6only;
acd1e437 2402
f32dc746
PS		 2403 v6only = *(__u8 *)RTA_DATA(tb[INET_DIAG_SKV6ONLY]);
2404 printf(" v6only:%u", v6only);
2405 }
5b816047
PE		 2406 if (tb[INET_DIAG_SHUTDOWN]) {
2407 unsigned char mask;
acd1e437 2408
5b816047
PE		 2409 mask = *(__u8 *)RTA_DATA(tb[INET_DIAG_SHUTDOWN]);
2410 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
2411 }
aba5acdf 2412 }
8250bc9f 2413
aba5acdf 2414 if (show_mem || show_tcpinfo) {
7d105b56 2415 printf("\n\t");
f89d46ad
PS		 2416 if (protocol == IPPROTO_SCTP)
2417 sctp_show_info(nlh, r, tb);
2418 else
2419 tcp_show_info(nlh, r, tb);
aba5acdf 2420 }
f89d46ad 2421 sctp_ino = s->ino;
7d105b56 2422
aba5acdf 2423 printf("\n");
aba5acdf 2424 return 0;
aba5acdf
SH		 2425}
2426
746a695f 2427static int tcpdiag_send(int fd, int protocol, struct filter *f)
aba5acdf 2428{
d17b136f 2429 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
aba5acdf
SH		 2430 struct {
2431 struct nlmsghdr nlh;
351efcde 2432 struct inet_diag_req r;
d17b136f
PS		 2433 } req = {
2434 .nlh.nlmsg_len = sizeof(req),
2435 .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
2436 .nlh.nlmsg_seq = MAGIC_SEQ,
2437 .r.idiag_family = AF_INET,
2438 .r.idiag_states = f->states,
2439 };
aba5acdf
SH		 2440 char *bc = NULL;
2441 int bclen;
2442 struct msghdr msg;
2443 struct rtattr rta;
aba5acdf 2444 struct iovec iov[3];
376fb868 2445 int iovlen = 1;
aba5acdf 2446
346f8ca8
PE		 2447 if (protocol == IPPROTO_UDP)
2448 return -1;
2449
3fe5b534
PE		 2450 if (protocol == IPPROTO_TCP)
2451 req.nlh.nlmsg_type = TCPDIAG_GETSOCK;
2452 else
2453 req.nlh.nlmsg_type = DCCPDIAG_GETSOCK;
910b0397 2454 if (show_mem) {
ae665a52 2455 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
910b0397
SW		 2456 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2457 }
b4b0b7d5 2458
7d105b56 2459 if (show_tcpinfo) {
351efcde
SH		 2460 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2461 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2462 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
7d105b56 2463 }
aba5acdf 2464
ae665a52
SH		 2465 iov[0] = (struct iovec){
2466 .iov_base = &req,
2467 .iov_len = sizeof(req)
ea8fc104 2468 };
aba5acdf
SH		 2469 if (f->f) {
2470 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2471 if (bclen) {
2472 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2473 rta.rta_len = RTA_LENGTH(bclen);
2474 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2475 iov[2] = (struct iovec){ bc, bclen };
2476 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2477 iovlen = 3;
2478 }
aba5acdf
SH		 2479 }
2480
2481 msg = (struct msghdr) {
acd1e437 2482 .msg_name = (void *)&nladdr,
ea8fc104 2483 .msg_namelen = sizeof(nladdr),
ae665a52 2484 .msg_iov = iov,
376fb868 2485 .msg_iovlen = iovlen,
aba5acdf
SH		 2486 };
2487
930a75f9
ED		 2488 if (sendmsg(fd, &msg, 0) < 0) {
2489 close(fd);
aba5acdf 2490 return -1;
930a75f9 2491 }
aba5acdf 2492
746a695f
PE		 2493 return 0;
2494}
2495
886d19d6
PE		 2496static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
2497{
d17b136f 2498 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
5fb421d4 2499 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
886d19d6
PE		 2500 char *bc = NULL;
2501 int bclen;
2502 struct msghdr msg;
2503 struct rtattr rta;
2504 struct iovec iov[3];
376fb868 2505 int iovlen = 1;
886d19d6
PE		 2506
2507 if (family == PF_UNSPEC)
2508 return tcpdiag_send(fd, protocol, f);
2509
886d19d6
PE		 2510 memset(&req.r, 0, sizeof(req.r));
2511 req.r.sdiag_family = family;
2512 req.r.sdiag_protocol = protocol;
2513 req.r.idiag_states = f->states;
2514 if (show_mem) {
2515 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
2516 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2517 }
2518
2519 if (show_tcpinfo) {
2520 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2521 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2522 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
2523 }
2524
2525 iov[0] = (struct iovec){
2526 .iov_base = &req,
2527 .iov_len = sizeof(req)
2528 };
2529 if (f->f) {
2530 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2531 if (bclen) {
2532 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2533 rta.rta_len = RTA_LENGTH(bclen);
2534 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2535 iov[2] = (struct iovec){ bc, bclen };
2536 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2537 iovlen = 3;
2538 }
886d19d6
PE		 2539 }
2540
2541 msg = (struct msghdr) {
acd1e437 2542 .msg_name = (void *)&nladdr,
886d19d6
PE		 2543 .msg_namelen = sizeof(nladdr),
2544 .msg_iov = iov,
376fb868 2545 .msg_iovlen = iovlen,
886d19d6
PE		 2546 };
2547
2548 if (sendmsg(fd, &msg, 0) < 0) {
2549 close(fd);
2550 return -1;
2551 }
2552
2553 return 0;
2554}
2555
486ccd99
VK		 2556struct inet_diag_arg {
2557 struct filter *f;
2558 int protocol;
fb2594c1 2559 struct rtnl_handle *rth;
486ccd99 2560};
aba5acdf 2561
b38e7409 2562static int kill_inet_sock(struct nlmsghdr *h, void *arg)
fb2594c1
LC		 2563{
2564 struct inet_diag_msg *d = NLMSG_DATA(h);
2565 struct inet_diag_arg *diag_arg = arg;
2566 struct rtnl_handle *rth = diag_arg->rth;
acd1e437 2567
fb2594c1
LC		 2568 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
2569
2570 req.nlh.nlmsg_type = SOCK_DESTROY;
2571 req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
2572 req.nlh.nlmsg_seq = ++rth->seq;
2573 req.r.sdiag_family = d->idiag_family;
2574 req.r.sdiag_protocol = diag_arg->protocol;
2575 req.r.id = d->id;
2576
2577 return rtnl_talk(rth, &req.nlh, NULL, 0);
2578}
2579
486ccd99
VK		 2580static int show_one_inet_sock(const struct sockaddr_nl *addr,
2581 struct nlmsghdr *h, void *arg)
2582{
2583 int err;
2584 struct inet_diag_arg *diag_arg = arg;
2585 struct inet_diag_msg *r = NLMSG_DATA(h);
82d73ea0 2586 struct sockstat s = {};
aba5acdf 2587
486ccd99
VK		 2588 if (!(diag_arg->f->families & (1 << r->idiag_family)))
2589 return 0;
82d73ea0
DA		 2590
2591 parse_diag_msg(h, &s);
2592
2593 if (diag_arg->f->f && run_ssfilter(diag_arg->f->f, &s) == 0)
2594 return 0;
2595
b38e7409 2596 if (diag_arg->f->kill && kill_inet_sock(h, arg) != 0) {
fb2594c1
LC		 2597 if (errno == EOPNOTSUPP || errno == ENOENT) {
2598 /* Socket can't be closed, or is already closed. */
2599 return 0;
2600 } else {
2601 perror("SOCK_DESTROY answers");
2602 return -1;
2603 }
2604 }
82d73ea0
DA		 2605
2606 err = inet_show_sock(h, &s, diag_arg->protocol);
2607 if (err < 0)
486ccd99 2608 return err;
aba5acdf 2609
486ccd99
VK		 2610 return 0;
2611}
886d19d6 2612
486ccd99
VK		 2613static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol)
2614{
2615 int err = 0;
fb2594c1 2616 struct rtnl_handle rth, rth2;
486ccd99
VK		 2617 int family = PF_INET;
2618 struct inet_diag_arg arg = { .f = f, .protocol = protocol };
886d19d6 2619
486ccd99
VK		 2620 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
2621 return -1;
fb2594c1
LC		 2622
2623 if (f->kill) {
2624 if (rtnl_open_byproto(&rth2, 0, NETLINK_SOCK_DIAG)) {
2625 rtnl_close(&rth);
2626 return -1;
2627 }
2628 arg.rth = &rth2;
2629 }
2630
486ccd99
VK		 2631 rth.dump = MAGIC_SEQ;
2632 rth.dump_fp = dump_fp;
518af1e0
ED		 2633 if (preferred_family == PF_INET6)
2634 family = PF_INET6;
886d19d6 2635
486ccd99
VK		 2636again:
2637 if ((err = sockdiag_send(family, rth.fd, protocol, f)))
2638 goto Exit;
aba5acdf 2639
486ccd99
VK		 2640 if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) {
2641 if (family != PF_UNSPEC) {
2642 family = PF_UNSPEC;
2643 goto again;
aba5acdf 2644 }
486ccd99 2645 goto Exit;
aba5acdf 2646 }
518af1e0 2647 if (family == PF_INET && preferred_family != PF_INET) {
886d19d6
PE		 2648 family = PF_INET6;
2649 goto again;
2650 }
2651
486ccd99
VK		 2652Exit:
2653 rtnl_close(&rth);
fb2594c1
LC		 2654 if (arg.rth)
2655 rtnl_close(arg.rth);
486ccd99 2656 return err;
aba5acdf
SH		 2657}
2658
ab01dbbb 2659static int tcp_show_netlink_file(struct filter *f)
aba5acdf
SH		 2660{
2661 FILE *fp;
e557212e 2662 char buf[16384];
aba5acdf
SH		 2663
2664 if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) {
2665 perror("fopen($TCPDIAG_FILE)");
2666 return -1;
2667 }
2668
2669 while (1) {
2670 int status, err;
acd1e437 2671 struct nlmsghdr *h = (struct nlmsghdr *)buf;
82d73ea0 2672 struct sockstat s = {};
aba5acdf
SH		 2673
2674 status = fread(buf, 1, sizeof(*h), fp);
2675 if (status < 0) {
2676 perror("Reading header from $TCPDIAG_FILE");
2677 return -1;
2678 }
2679 if (status != sizeof(*h)) {
2680 perror("Unexpected EOF reading $TCPDIAG_FILE");
2681 return -1;
2682 }
2683
2684 status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp);
2685
2686 if (status < 0) {
2687 perror("Reading $TCPDIAG_FILE");
2688 return -1;
2689 }
2690 if (status + sizeof(*h) < h->nlmsg_len) {
2691 perror("Unexpected EOF reading $TCPDIAG_FILE");
2692 return -1;
2693 }
2694
2695 /* The only legal exit point */
2696 if (h->nlmsg_type == NLMSG_DONE)
2697 return 0;
2698
2699 if (h->nlmsg_type == NLMSG_ERROR) {
acd1e437
SH		 2700 struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h);
2701
aba5acdf
SH		 2702 if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
2703 fprintf(stderr, "ERROR truncated\n");
2704 } else {
2705 errno = -err->error;
2706 perror("TCPDIAG answered");
2707 }
2708 return -1;
2709 }
2710
82d73ea0
DA		 2711 parse_diag_msg(h, &s);
2712
2713 if (f && f->f && run_ssfilter(f->f, &s) == 0)
2714 continue;
2715
2716 err = inet_show_sock(h, &s, IPPROTO_TCP);
aba5acdf
SH		 2717 if (err < 0)
2718 return err;
2719 }
2720}
2721
ab01dbbb 2722static int tcp_show(struct filter *f, int socktype)
aba5acdf 2723{
ab01dbbb 2724 FILE *fp = NULL;
aba5acdf
SH		 2725 char *buf = NULL;
2726 int bufsize = 64*1024;
2727
1527a17e
VK		 2728 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2729 return 0;
2730
aba5acdf
SH		 2731 dg_proto = TCP_PROTO;
2732
2733 if (getenv("TCPDIAG_FILE"))
2734 return tcp_show_netlink_file(f);
2735
2736 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
3fe5b534 2737 && inet_show_netlink(f, NULL, socktype) == 0)
aba5acdf
SH		 2738 return 0;
2739
2740 /* Sigh... We have to parse /proc/net/tcp... */
2741
ab01dbbb 2742
aba5acdf
SH		 2743 /* Estimate amount of sockets and try to allocate
2744 * huge buffer to read all the table at one read.
2745 * Limit it by 16MB though. The assumption is: as soon as
2746 * kernel was able to hold information about N connections,
2747 * it is able to give us some memory for snapshot.
2748 */
2749 if (1) {
a221d621
BL		 2750 get_slabstat(&slabstat);
2751
aba5acdf 2752 int guess = slabstat.socks+slabstat.tcp_syns;
acd1e437 2753
aba5acdf
SH		 2754 if (f->states&(1<<SS_TIME_WAIT))
2755 guess += slabstat.tcp_tws;
2756 if (guess > (16*1024*1024)/128)
2757 guess = (16*1024*1024)/128;
2758 guess *= 128;
2759 if (guess > bufsize)
2760 bufsize = guess;
2761 }
2762 while (bufsize >= 64*1024) {
2763 if ((buf = malloc(bufsize)) != NULL)
2764 break;
2765 bufsize /= 2;
2766 }
2767 if (buf == NULL) {
2768 errno = ENOMEM;
2769 return -1;
2770 }
2771
2772 if (f->families & (1<<AF_INET)) {
69cae645 2773 if ((fp = net_tcp_open()) == NULL)
aba5acdf 2774 goto outerr;
ab01dbbb
SH		 2775
2776 setbuffer(fp, buf, bufsize);
2777 if (generic_record_read(fp, tcp_show_line, f, AF_INET))
aba5acdf 2778 goto outerr;
ab01dbbb 2779 fclose(fp);
aba5acdf
SH		 2780 }
2781
2782 if ((f->families & (1<<AF_INET6)) &&
69cae645 2783 (fp = net_tcp6_open()) != NULL) {
ab01dbbb
SH		 2784 setbuffer(fp, buf, bufsize);
2785 if (generic_record_read(fp, tcp_show_line, f, AF_INET6))
aba5acdf 2786 goto outerr;
ab01dbbb 2787 fclose(fp);
aba5acdf
SH		 2788 }
2789
2790 free(buf);
2791 return 0;
2792
2793outerr:
2794 do {
2795 int saved_errno = errno;
acd1e437 2796
92de1c2c 2797 free(buf);
ab01dbbb
SH		 2798 if (fp)
2799 fclose(fp);
aba5acdf
SH		 2800 errno = saved_errno;
2801 return -1;
2802 } while (0);
2803}
2804
f89d46ad
PS		 2805static int sctp_show(struct filter *f)
2806{
2807 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2808 return 0;
2809
2810 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
2811 && inet_show_netlink(f, NULL, IPPROTO_SCTP) == 0)
2812 return 0;
2813
2814 return 0;
2815}
aba5acdf 2816
d1f28cf1 2817static int dgram_show_line(char *line, const struct filter *f, int family)
aba5acdf 2818{
055840f2 2819 struct sockstat s = {};
aba5acdf
SH		 2820 char *loc, *rem, *data;
2821 char opt[256];
2822 int n;
aba5acdf 2823
8250bc9f 2824 if (proc_inet_split_line(line, &loc, &rem, &data))
aba5acdf 2825 return -1;
aba5acdf 2826
8250bc9f 2827 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2828
8250bc9f
VK		 2829 if (!(f->states & (1 << state)))
2830 return 0;
aba5acdf 2831
8250bc9f 2832 proc_parse_inet_addr(loc, rem, family, &s);
aba5acdf
SH		 2833
2834 if (f->f && run_ssfilter(f->f, &s) == 0)
2835 return 0;
2836
2837 opt[0] = 0;
e7113c61 2838 n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
aba5acdf
SH		 2839 &s.state, &s.wq, &s.rq,
2840 &s.uid, &s.ino,
2841 &s.refcnt, &s.sk, opt);
2842
2843 if (n < 9)
2844 opt[0] = 0;
2845
235c4453 2846 inet_stats_print(&s, dg_proto == UDP_PROTO ? IPPROTO_UDP : 0);
aba5acdf 2847
f1b39e1b
VK		 2848 if (show_details && opt[0])
2849 printf(" opt:\"%s\"", opt);
aba5acdf 2850
8250bc9f 2851 printf("\n");
aba5acdf
SH		 2852 return 0;
2853}
2854
d1f28cf1 2855static int udp_show(struct filter *f)
aba5acdf 2856{
ab01dbbb 2857 FILE *fp = NULL;
aba5acdf 2858
1527a17e
VK		 2859 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2860 return 0;
2861
ace5cb31
VK		 2862 dg_proto = UDP_PROTO;
2863
346f8ca8
PE		 2864 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
2865 && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0)
2866 return 0;
2867
aba5acdf 2868 if (f->families&(1<<AF_INET)) {
69cae645 2869 if ((fp = net_udp_open()) == NULL)
aba5acdf 2870 goto outerr;
ab01dbbb 2871 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2872 goto outerr;
ab01dbbb 2873 fclose(fp);
aba5acdf
SH		 2874 }
2875
2876 if ((f->families&(1<<AF_INET6)) &&
69cae645 2877 (fp = net_udp6_open()) != NULL) {
ab01dbbb 2878 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2879 goto outerr;
ab01dbbb 2880 fclose(fp);
aba5acdf
SH		 2881 }
2882 return 0;
2883
2884outerr:
2885 do {
2886 int saved_errno = errno;
acd1e437 2887
ab01dbbb
SH		 2888 if (fp)
2889 fclose(fp);
aba5acdf
SH		 2890 errno = saved_errno;
2891 return -1;
2892 } while (0);
2893}
2894
d1f28cf1 2895static int raw_show(struct filter *f)
aba5acdf 2896{
ab01dbbb 2897 FILE *fp = NULL;
aba5acdf 2898
1527a17e
VK		 2899 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2900 return 0;
2901
aba5acdf
SH		 2902 dg_proto = RAW_PROTO;
2903
2904 if (f->families&(1<<AF_INET)) {
69cae645 2905 if ((fp = net_raw_open()) == NULL)
aba5acdf 2906 goto outerr;
ab01dbbb 2907 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2908 goto outerr;
ab01dbbb 2909 fclose(fp);
aba5acdf
SH		 2910 }
2911
2912 if ((f->families&(1<<AF_INET6)) &&
69cae645 2913 (fp = net_raw6_open()) != NULL) {
ab01dbbb 2914 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2915 goto outerr;
ab01dbbb 2916 fclose(fp);
aba5acdf
SH		 2917 }
2918 return 0;
2919
2920outerr:
2921 do {
2922 int saved_errno = errno;
acd1e437 2923
ab01dbbb
SH		 2924 if (fp)
2925 fclose(fp);
aba5acdf
SH		 2926 errno = saved_errno;
2927 return -1;
2928 } while (0);
2929}
2930
aba5acdf
SH		 2931int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT,
2932 SS_ESTABLISHED, SS_CLOSING };
2933
ec4d0d8a 2934#define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
aba5acdf 2935
ec4d0d8a 2936static void unix_list_free(struct sockstat *list)
aba5acdf
SH		 2937{
2938 while (list) {
ec4d0d8a 2939 struct sockstat *s = list;
ec4d0d8a 2940
aba5acdf 2941 list = list->next;
99bb68ff 2942 free(s->name);
aba5acdf
SH		 2943 free(s);
2944 }
2945}
2946
30b669d7
MY		 2947static const char *unix_netid_name(int type)
2948{
2949 const char *netid;
2950
2951 switch (type) {
2952 case SOCK_STREAM:
2953 netid = "u_str";
2954 break;
2955 case SOCK_SEQPACKET:
2956 netid = "u_seq";
2957 break;
2958 case SOCK_DGRAM:
2959 default:
2960 netid = "u_dgr";
2961 break;
2962 }
2963 return netid;
2964}
2965
ec4d0d8a 2966static bool unix_type_skip(struct sockstat *s, struct filter *f)
bf4ceee6
VK		 2967{
2968 if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
2969 return true;
2970 if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
2971 return true;
2972 if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
2973 return true;
2974 return false;
2975}
2976
ec4d0d8a
VK		 2977static bool unix_use_proc(void)
2978{
2979 return getenv("PROC_NET_UNIX") || getenv("PROC_ROOT");
2980}
2981
2982static void unix_stats_print(struct sockstat *list, struct filter *f)
aba5acdf 2983{
ec4d0d8a 2984 struct sockstat *s;
99bb68ff 2985 char *peer;
b217df10 2986 char *ctx_buf = NULL;
ec4d0d8a 2987 bool use_proc = unix_use_proc();
b217df10 2988 char port_name[30] = {};
aba5acdf
SH		 2989
2990 for (s = list; s; s = s->next) {
ec4d0d8a 2991 if (!(f->states & (1 << s->state)))
aba5acdf 2992 continue;
bf4ceee6 2993 if (unix_type_skip(s, f))
30b669d7 2994 continue;
aba5acdf 2995
99bb68ff
VK		 2996 peer = "*";
2997 if (s->peer_name)
2998 peer = s->peer_name;
ec4d0d8a
VK		 2999
3000 if (s->rport && use_proc) {
3001 struct sockstat *p;
bf4ceee6 3002
aba5acdf 3003 for (p = list; p; p = p->next) {
ec4d0d8a 3004 if (s->rport == p->lport)
aba5acdf
SH		 3005 break;
3006 }
ec4d0d8a 3007
aba5acdf
SH		 3008 if (!p) {
3009 peer = "?";
3010 } else {
99bb68ff 3011 peer = p->name ? : "*";
aba5acdf
SH		 3012 }
3013 }
3014
29999b0f 3015 if (use_proc && f->f) {
d17b136f
PS		 3016 struct sockstat st = {
3017 .local.family = AF_UNIX,
3018 .remote.family = AF_UNIX,
3019 };
acd1e437 3020
99bb68ff 3021 memcpy(st.local.data, &s->name, sizeof(s->name));
d17b136f 3022 if (strcmp(peer, "*"))
99bb68ff
VK		 3023 memcpy(st.remote.data, &peer, sizeof(peer));
3024 if (run_ssfilter(f->f, &st) == 0)
aba5acdf
SH		 3025 continue;
3026 }
3027
2d791bc8
VK		 3028 sock_state_print(s, unix_netid_name(s->type));
3029
99bb68ff 3030 sock_addr_print(s->name ?: "*", " ",
b217df10
VK		 3031 int_to_str(s->lport, port_name), NULL);
3032 sock_addr_print(peer, " ", int_to_str(s->rport, port_name),
3033 NULL);
116ac927
RH		 3034
3035 if (show_proc_ctx || show_sock_ctx) {
b217df10 3036 if (find_entry(s->ino, &ctx_buf,
116ac927
RH		 3037 (show_proc_ctx & show_sock_ctx) ?
3038 PROC_SOCK_CTX : PROC_CTX) > 0) {
b217df10
VK		 3039 printf(" users:(%s)", ctx_buf);
3040 free(ctx_buf);
116ac927
RH		 3041 }
3042 } else if (show_users) {
b217df10
VK		 3043 if (find_entry(s->ino, &ctx_buf, USERS) > 0) {
3044 printf(" users:(%s)", ctx_buf);
3045 free(ctx_buf);
116ac927 3046 }
aba5acdf
SH		 3047 }
3048 printf("\n");
3049 }
3050}
3051
8a4025f6 3052static int unix_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh,
3053 void *arg)
dfbaa90d 3054{
8a4025f6 3055 struct filter *f = (struct filter *)arg;
dfbaa90d
PE		 3056 struct unix_diag_msg *r = NLMSG_DATA(nlh);
3057 struct rtattr *tb[UNIX_DIAG_MAX+1];
99bb68ff
VK		 3058 char name[128];
3059 struct sockstat stat = { .name = "*", .peer_name = "*" };
dfbaa90d 3060
acd1e437 3061 parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr *)(r+1),
dfbaa90d
PE		 3062 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3063
bf4ceee6
VK		 3064 stat.type = r->udiag_type;
3065 stat.state = r->udiag_state;
ec4d0d8a
VK		 3066 stat.ino = stat.lport = r->udiag_ino;
3067 stat.local.family = stat.remote.family = AF_UNIX;
0d2e01c5 3068
bf4ceee6
VK		 3069 if (unix_type_skip(&stat, f))
3070 return 0;
dfbaa90d 3071
defd61ca
HFS		 3072 if (tb[UNIX_DIAG_RQLEN]) {
3073 struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]);
acd1e437 3074
bf4ceee6
VK		 3075 stat.rq = rql->udiag_rqueue;
3076 stat.wq = rql->udiag_wqueue;
defd61ca 3077 }
dfbaa90d
PE		 3078 if (tb[UNIX_DIAG_NAME]) {
3079 int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
3080
3081 memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
3082 name[len] = '\0';
3083 if (name[0] == '\0')
878dadc7
IB		 3084 for (int i = 0; i < len; i++)
3085 if (name[i] == '\0')
3086 name[i] = '@';
99bb68ff
VK		 3087 stat.name = &name[0];
3088 memcpy(stat.local.data, &stat.name, sizeof(stat.name));
bf4ceee6 3089 }
dfbaa90d 3090 if (tb[UNIX_DIAG_PEER])
ec4d0d8a 3091 stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]);
dfbaa90d 3092
29999b0f
VK		 3093 if (f->f && run_ssfilter(f->f, &stat) == 0)
3094 return 0;
3095
bf4ceee6 3096 unix_stats_print(&stat, f);
dfbaa90d 3097
51ff9f24 3098 if (show_mem) {
bf4ceee6 3099 printf("\t");
51ff9f24
HFS		 3100 print_skmeminfo(tb, UNIX_DIAG_MEMINFO);
3101 }
5b816047
PE		 3102 if (show_details) {
3103 if (tb[UNIX_DIAG_SHUTDOWN]) {
3104 unsigned char mask;
acd1e437 3105
5b816047
PE		 3106 mask = *(__u8 *)RTA_DATA(tb[UNIX_DIAG_SHUTDOWN]);
3107 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
3108 }
3109 }
bf4ceee6
VK		 3110 if (show_mem || show_details)
3111 printf("\n");
ec4d0d8a 3112
dfbaa90d
PE		 3113 return 0;
3114}
3115
8a4025f6 3116static int handle_netlink_request(struct filter *f, struct nlmsghdr *req,
3117 size_t size, rtnl_filter_t show_one_sock)
dfbaa90d 3118{
8a4025f6 3119 int ret = -1;
3120 struct rtnl_handle rth;
dfbaa90d 3121
8a4025f6 3122 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
dfbaa90d
PE		 3123 return -1;
3124
8a4025f6 3125 rth.dump = MAGIC_SEQ;
dfbaa90d 3126
8a4025f6 3127 if (rtnl_send(&rth, req, size) < 0)
3128 goto Exit;
dfbaa90d 3129
8a4025f6 3130 if (rtnl_dump_filter(&rth, show_one_sock, f))
3131 goto Exit;
dfbaa90d 3132
8a4025f6 3133 ret = 0;
3134Exit:
3135 rtnl_close(&rth);
3136 return ret;
dfbaa90d
PE		 3137}
3138
8a4025f6 3139static int unix_show_netlink(struct filter *f)
d8402b96 3140{
5fb421d4 3141 DIAG_REQUEST(req, struct unix_diag_req r);
d8402b96
AV		 3142
3143 req.r.sdiag_family = AF_UNIX;
3144 req.r.udiag_states = f->states;
3145 req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
3146 if (show_mem)
3147 req.r.udiag_show |= UDIAG_SHOW_MEMINFO;
3148
8a4025f6 3149 return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock);
d8402b96
AV		 3150}
3151
d1f28cf1 3152static int unix_show(struct filter *f)
aba5acdf
SH		 3153{
3154 FILE *fp;
3155 char buf[256];
3156 char name[128];
3157 int newformat = 0;
3158 int cnt;
ec4d0d8a 3159 struct sockstat *list = NULL;
aba5acdf 3160
9db7bf15
VK		 3161 if (!filter_af_get(f, AF_UNIX))
3162 return 0;
3163
ec4d0d8a 3164 if (!unix_use_proc() && unix_show_netlink(f) == 0)
dfbaa90d
PE		 3165 return 0;
3166
ab01dbbb 3167 if ((fp = net_unix_open()) == NULL)
aba5acdf 3168 return -1;
61170fd8 3169 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3170 fclose(fp);
3171 return -1;
3172 }
aba5acdf 3173
ae665a52 3174 if (memcmp(buf, "Peer", 4) == 0)
aba5acdf
SH		 3175 newformat = 1;
3176 cnt = 0;
3177
61170fd8 3178 while (fgets(buf, sizeof(buf), fp)) {
ec4d0d8a 3179 struct sockstat *u, **insp;
aba5acdf
SH		 3180 int flags;
3181
0ee9052f 3182 if (!(u = calloc(1, sizeof(*u))))
aba5acdf 3183 break;
99bb68ff
VK		 3184 u->name = NULL;
3185 u->peer_name = NULL;
aba5acdf
SH		 3186
3187 if (sscanf(buf, "%x: %x %x %x %x %x %d %s",
ec4d0d8a 3188 &u->rport, &u->rq, &u->wq, &flags, &u->type,
aba5acdf
SH		 3189 &u->state, &u->ino, name) < 8)
3190 name[0] = 0;
3191
ec4d0d8a
VK		 3192 u->lport = u->ino;
3193 u->local.family = u->remote.family = AF_UNIX;
3194
3195 if (flags & (1 << 16)) {
aba5acdf
SH		 3196 u->state = SS_LISTEN;
3197 } else {
3198 u->state = unix_state_map[u->state-1];
ec4d0d8a 3199 if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport)
aba5acdf
SH		 3200 u->state = SS_ESTABLISHED;
3201 }
3202
3203 if (!newformat) {
ec4d0d8a 3204 u->rport = 0;
aba5acdf
SH		 3205 u->rq = 0;
3206 u->wq = 0;
3207 }
3208
3209 insp = &list;
3210 while (*insp) {
3211 if (u->type < (*insp)->type ||
3212 (u->type == (*insp)->type &&
3213 u->ino < (*insp)->ino))
3214 break;
3215 insp = &(*insp)->next;
3216 }
3217 u->next = *insp;
3218 *insp = u;
3219
3220 if (name[0]) {
99bb68ff
VK		 3221 if ((u->name = malloc(strlen(name)+1)) == NULL)
3222 break;
3223 strcpy(u->name, name);
aba5acdf
SH		 3224 }
3225 if (++cnt > MAX_UNIX_REMEMBER) {
bf4ceee6 3226 unix_stats_print(list, f);
aba5acdf
SH		 3227 unix_list_free(list);
3228 list = NULL;
3229 cnt = 0;
3230 }
3231 }
a3fd8e58 3232 fclose(fp);
aba5acdf 3233 if (list) {
bf4ceee6 3234 unix_stats_print(list, f);
aba5acdf
SH		 3235 unix_list_free(list);
3236 list = NULL;
3237 cnt = 0;
3238 }
3239
3240 return 0;
3241}
3242
89f634f9 3243static int packet_stats_print(struct sockstat *s, const struct filter *f)
4a0053b6
VK		 3244{
3245 char *buf = NULL;
b217df10
VK		 3246 const char *addr, *port;
3247 char ll_name[16];
372c30d2 3248
4a0053b6 3249 if (f->f) {
89f634f9
VK		 3250 s->local.family = AF_PACKET;
3251 s->remote.family = AF_PACKET;
89f634f9 3252 s->local.data[0] = s->prot;
89f634f9 3253 if (run_ssfilter(f->f, s) == 0)
4a0053b6
VK		 3254 return 1;
3255 }
372c30d2 3256
2d791bc8 3257 sock_state_print(s, s->type == SOCK_RAW ? "p_raw" : "p_dgr");
372c30d2 3258
b217df10
VK		 3259 if (s->prot == 3)
3260 addr = "*";
3261 else
3262 addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name));
3263
3264 if (s->iface == 0)
3265 port = "*";
3266 else
3267 port = xll_index_to_name(s->iface);
372c30d2 3268
b217df10
VK		 3269 sock_addr_print(addr, ":", port, NULL);
3270 sock_addr_print("", "*", "", NULL);
116ac927
RH		 3271
3272 if (show_proc_ctx || show_sock_ctx) {
4a0053b6
VK		 3273 if (find_entry(s->ino, &buf,
3274 (show_proc_ctx & show_sock_ctx) ?
3275 PROC_SOCK_CTX : PROC_CTX) > 0) {
116ac927
RH		 3276 printf(" users:(%s)", buf);
3277 free(buf);
3278 }
3279 } else if (show_users) {
4a0053b6 3280 if (find_entry(s->ino, &buf, USERS) > 0) {
116ac927
RH		 3281 printf(" users:(%s)", buf);
3282 free(buf);
3283 }
372c30d2 3284 }
116ac927 3285
f1b39e1b
VK		 3286 if (show_details)
3287 sock_details_print(s);
3288
4a0053b6
VK		 3289 return 0;
3290}
3291
2631b856
VK		 3292static void packet_show_ring(struct packet_diag_ring *ring)
3293{
3294 printf("blk_size:%d", ring->pdr_block_size);
3295 printf(",blk_nr:%d", ring->pdr_block_nr);
3296 printf(",frm_size:%d", ring->pdr_frame_size);
3297 printf(",frm_nr:%d", ring->pdr_frame_nr);
3298 printf(",tmo:%d", ring->pdr_retire_tmo);
3299 printf(",features:0x%x", ring->pdr_features);
3300}
3301
4a0053b6
VK		 3302static int packet_show_sock(const struct sockaddr_nl *addr,
3303 struct nlmsghdr *nlh, void *arg)
3304{
3305 const struct filter *f = arg;
3306 struct packet_diag_msg *r = NLMSG_DATA(nlh);
2631b856
VK		 3307 struct packet_diag_info *pinfo = NULL;
3308 struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL;
4a0053b6 3309 struct rtattr *tb[PACKET_DIAG_MAX+1];
89f634f9 3310 struct sockstat stat = {};
2631b856
VK		 3311 uint32_t fanout = 0;
3312 bool has_fanout = false;
4a0053b6 3313
acd1e437 3314 parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr *)(r+1),
4a0053b6
VK		 3315 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3316
3317 /* use /proc/net/packet if all info are not available */
3318 if (!tb[PACKET_DIAG_MEMINFO])
3319 return -1;
3320
2d791bc8
VK		 3321 stat.type = r->pdiag_type;
3322 stat.prot = r->pdiag_num;
3323 stat.ino = r->pdiag_ino;
3324 stat.state = SS_CLOSE;
f1b39e1b 3325 stat.sk = cookie_sk_get(&r->pdiag_cookie[0]);
4a0053b6
VK		 3326
3327 if (tb[PACKET_DIAG_MEMINFO]) {
3328 __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]);
acd1e437 3329
4a0053b6
VK		 3330 stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3331 }
3332
3333 if (tb[PACKET_DIAG_INFO]) {
2631b856 3334 pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
2d791bc8 3335 stat.lport = stat.iface = pinfo->pdi_index;
4a0053b6
VK		 3336 }
3337
f1b39e1b
VK		 3338 if (tb[PACKET_DIAG_UID])
3339 stat.uid = *(__u32 *)RTA_DATA(tb[PACKET_DIAG_UID]);
3340
2631b856
VK		 3341 if (tb[PACKET_DIAG_RX_RING])
3342 ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]);
3343
3344 if (tb[PACKET_DIAG_TX_RING])
3345 ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]);
3346
3347 if (tb[PACKET_DIAG_FANOUT]) {
3348 has_fanout = true;
3349 fanout = *(uint32_t *)RTA_DATA(tb[PACKET_DIAG_FANOUT]);
3350 }
3351
4a0053b6
VK		 3352 if (packet_stats_print(&stat, f))
3353 return 0;
3354
2631b856
VK		 3355 if (show_details) {
3356 if (pinfo) {
3357 printf("\n\tver:%d", pinfo->pdi_version);
3358 printf(" cpy_thresh:%d", pinfo->pdi_copy_thresh);
3359 printf(" flags( ");
3360 if (pinfo->pdi_flags & PDI_RUNNING)
3361 printf("running");
3362 if (pinfo->pdi_flags & PDI_AUXDATA)
3363 printf(" auxdata");
3364 if (pinfo->pdi_flags & PDI_ORIGDEV)
3365 printf(" origdev");
3366 if (pinfo->pdi_flags & PDI_VNETHDR)
3367 printf(" vnethdr");
3368 if (pinfo->pdi_flags & PDI_LOSS)
3369 printf(" loss");
3370 if (!pinfo->pdi_flags)
3371 printf("0");
3372 printf(" )");
3373 }
3374 if (ring_rx) {
3375 printf("\n\tring_rx(");
3376 packet_show_ring(ring_rx);
3377 printf(")");
3378 }
3379 if (ring_tx) {
3380 printf("\n\tring_tx(");
3381 packet_show_ring(ring_tx);
3382 printf(")");
3383 }
3384 if (has_fanout) {
3385 uint16_t type = (fanout >> 16) & 0xffff;
3386
3387 printf("\n\tfanout(");
3388 printf("id:%d,", fanout & 0xffff);
3389 printf("type:");
3390
3391 if (type == 0)
3392 printf("hash");
3393 else if (type == 1)
3394 printf("lb");
3395 else if (type == 2)
3396 printf("cpu");
3397 else if (type == 3)
3398 printf("roll");
3399 else if (type == 4)
3400 printf("random");
3401 else if (type == 5)
3402 printf("qm");
3403 else
3404 printf("0x%x", type);
3405
3406 printf(")");
3407 }
3408 }
3409
372c30d2
ND		 3410 if (show_bpf && tb[PACKET_DIAG_FILTER]) {
3411 struct sock_filter *fil =
3412 RTA_DATA(tb[PACKET_DIAG_FILTER]);
3413 int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) /
3414 sizeof(struct sock_filter);
3415
3416 printf("\n\tbpf filter (%d): ", num);
3417 while (num) {
3418 printf(" 0x%02x %u %u %u,",
3419 fil->code, fil->jt, fil->jf, fil->k);
3420 num--;
3421 fil++;
3422 }
3423 }
3424 printf("\n");
3425 return 0;
3426}
3427
8a4025f6 3428static int packet_show_netlink(struct filter *f)
372c30d2 3429{
5fb421d4 3430 DIAG_REQUEST(req, struct packet_diag_req r);
372c30d2 3431
372c30d2 3432 req.r.sdiag_family = AF_PACKET;
2631b856
VK		 3433 req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO |
3434 PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT;
372c30d2 3435
8a4025f6 3436 return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock);
372c30d2
ND		 3437}
3438
4a0053b6
VK		 3439static int packet_show_line(char *buf, const struct filter *f, int fam)
3440{
3441 unsigned long long sk;
89f634f9 3442 struct sockstat stat = {};
4a0053b6
VK		 3443 int type, prot, iface, state, rq, uid, ino;
3444
3445 sscanf(buf, "%llx %*d %d %x %d %d %u %u %u",
3446 &sk,
3447 &type, &prot, &iface, &state,
3448 &rq, &uid, &ino);
3449
3450 if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB)))
3451 return 0;
3452 if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB)))
3453 return 0;
3454
3455 stat.type = type;
3456 stat.prot = prot;
2d791bc8 3457 stat.lport = stat.iface = iface;
4a0053b6
VK		 3458 stat.state = state;
3459 stat.rq = rq;
3460 stat.uid = uid;
3461 stat.ino = ino;
2d791bc8
VK		 3462 stat.state = SS_CLOSE;
3463
4a0053b6
VK		 3464 if (packet_stats_print(&stat, f))
3465 return 0;
3466
4a0053b6
VK		 3467 printf("\n");
3468 return 0;
3469}
aba5acdf 3470
d1f28cf1 3471static int packet_show(struct filter *f)
aba5acdf
SH		 3472{
3473 FILE *fp;
b95d28c3 3474 int rc = 0;
3d0b7439 3475
9db7bf15 3476 if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE)))
b9ea445d 3477 return 0;
aba5acdf 3478
4a0053b6
VK		 3479 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
3480 packet_show_netlink(f) == 0)
372c30d2
ND		 3481 return 0;
3482
ab01dbbb 3483 if ((fp = net_packet_open()) == NULL)
aba5acdf 3484 return -1;
4a0053b6 3485 if (generic_record_read(fp, packet_show_line, f, AF_PACKET))
b95d28c3 3486 rc = -1;
aba5acdf 3487
b95d28c3
PS		 3488 fclose(fp);
3489 return rc;
aba5acdf
SH		 3490}
3491
5f24ec0e 3492static int netlink_show_one(struct filter *f,
acd1e437
SH		 3493 int prot, int pid, unsigned int groups,
3494 int state, int dst_pid, unsigned int dst_group,
129709ae
AV		 3495 int rq, int wq,
3496 unsigned long long sk, unsigned long long cb)
3497{
2d791bc8 3498 struct sockstat st;
acd1e437 3499
b217df10
VK		 3500 SPRINT_BUF(prot_buf) = {};
3501 const char *prot_name;
3502 char procname[64] = {};
eef43b50 3503
2d791bc8
VK		 3504 st.state = SS_CLOSE;
3505 st.rq = rq;
3506 st.wq = wq;
3507
129709ae 3508 if (f->f) {
055840f2
VK		 3509 st.local.family = AF_NETLINK;
3510 st.remote.family = AF_NETLINK;
3511 st.rport = -1;
3512 st.lport = pid;
3513 st.local.data[0] = prot;
055840f2 3514 if (run_ssfilter(f->f, &st) == 0)
5f24ec0e 3515 return 1;
129709ae
AV		 3516 }
3517
2d791bc8 3518 sock_state_print(&st, "nl");
eef43b50 3519
b217df10
VK		 3520 if (resolve_services)
3521 prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf));
3522 else
3523 prot_name = int_to_str(prot, prot_buf);
eef43b50 3524
129709ae 3525 if (pid == -1) {
b217df10 3526 procname[0] = '*';
129709ae
AV		 3527 } else if (resolve_services) {
3528 int done = 0;
acd1e437 3529
129709ae
AV		 3530 if (!pid) {
3531 done = 1;
b217df10 3532 strncpy(procname, "kernel", 6);
129709ae 3533 } else if (pid > 0) {
129709ae 3534 FILE *fp;
acd1e437 3535
0ee9052f 3536 snprintf(procname, sizeof(procname), "%s/%d/stat",
129709ae
AV		 3537 getenv("PROC_ROOT") ? : "/proc", pid);
3538 if ((fp = fopen(procname, "r")) != NULL) {
3539 if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
0ee9052f 3540 snprintf(procname+strlen(procname),
3541 sizeof(procname)-strlen(procname),
3542 "/%d", pid);
129709ae
AV		 3543 done = 1;
3544 }
3545 fclose(fp);
3546 }
3547 }
3548 if (!done)
b217df10 3549 int_to_str(pid, procname);
129709ae 3550 } else {
b217df10 3551 int_to_str(pid, procname);
129709ae 3552 }
f271fe01 3553
b217df10
VK		 3554 sock_addr_print(prot_name, ":", procname, NULL);
3555
f271fe01 3556 if (state == NETLINK_CONNECTED) {
b217df10
VK		 3557 char dst_group_buf[30];
3558 char dst_pid_buf[30];
acd1e437 3559
b217df10
VK		 3560 sock_addr_print(int_to_str(dst_group, dst_group_buf), ":",
3561 int_to_str(dst_pid, dst_pid_buf), NULL);
f271fe01 3562 } else {
b217df10 3563 sock_addr_print("", "*", "", NULL);
f271fe01 3564 }
129709ae 3565
116ac927 3566 char *pid_context = NULL;
acd1e437 3567
116ac927
RH		 3568 if (show_proc_ctx) {
3569 /* The pid value will either be:
3570 * 0 if destination kernel - show kernel initial context.
3571 * A valid process pid - use getpidcon.
3572 * A unique value allocated by the kernel or netlink user
3573 * to the process - show context as "not available".
3574 */
3575 if (!pid)
3576 security_get_initial_context("kernel", &pid_context);
3577 else if (pid > 0)
3578 getpidcon(pid, &pid_context);
3579
3580 if (pid_context != NULL) {
3581 printf("proc_ctx=%-*s ", serv_width, pid_context);
3582 free(pid_context);
3583 } else {
3584 printf("proc_ctx=%-*s ", serv_width, "unavailable");
3585 }
3586 }
3587
129709ae
AV		 3588 if (show_details) {
3589 printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups);
3590 }
3591 printf("\n");
3592
5f24ec0e 3593 return 0;
129709ae
AV		 3594}
3595
8a4025f6 3596static int netlink_show_sock(const struct sockaddr_nl *addr,
3597 struct nlmsghdr *nlh, void *arg)
ecb928c8 3598{
8a4025f6 3599 struct filter *f = (struct filter *)arg;
ecb928c8
AV		 3600 struct netlink_diag_msg *r = NLMSG_DATA(nlh);
3601 struct rtattr *tb[NETLINK_DIAG_MAX+1];
3602 int rq = 0, wq = 0;
3603 unsigned long groups = 0;
3604
acd1e437 3605 parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr *)(r+1),
ecb928c8
AV		 3606 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3607
3608 if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS]))
3609 groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]);
3610
3611 if (tb[NETLINK_DIAG_MEMINFO]) {
3612 const __u32 *skmeminfo;
acd1e437 3613
ecb928c8
AV		 3614 skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]);
3615
3616 rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3617 wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC];
3618 }
3619
5f24ec0e 3620 if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups,
ecb928c8 3621 r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group,
5f24ec0e
VK		 3622 rq, wq, 0, 0)) {
3623 return 0;
3624 }
ecb928c8
AV		 3625
3626 if (show_mem) {
3627 printf("\t");
3628 print_skmeminfo(tb, NETLINK_DIAG_MEMINFO);
3629 printf("\n");
3630 }
3631
3632 return 0;
3633}
3634
8a4025f6 3635static int netlink_show_netlink(struct filter *f)
ecb928c8 3636{
5fb421d4 3637 DIAG_REQUEST(req, struct netlink_diag_req r);
ecb928c8
AV		 3638
3639 req.r.sdiag_family = AF_NETLINK;
3640 req.r.sdiag_protocol = NDIAG_PROTO_ALL;
3641 req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO;
3642
8a4025f6 3643 return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock);
ecb928c8
AV		 3644}
3645
d1f28cf1 3646static int netlink_show(struct filter *f)
aba5acdf
SH		 3647{
3648 FILE *fp;
3649 char buf[256];
3650 int prot, pid;
acd1e437 3651 unsigned int groups;
aba5acdf
SH		 3652 int rq, wq, rc;
3653 unsigned long long sk, cb;
3654
9db7bf15 3655 if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE)))
b9ea445d
VK		 3656 return 0;
3657
129709ae 3658 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
8a4025f6 3659 netlink_show_netlink(f) == 0)
129709ae
AV		 3660 return 0;
3661
ab01dbbb 3662 if ((fp = net_netlink_open()) == NULL)
aba5acdf 3663 return -1;
61170fd8 3664 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3665 fclose(fp);
3666 return -1;
3667 }
aba5acdf 3668
61170fd8 3669 while (fgets(buf, sizeof(buf), fp)) {
aba5acdf
SH		 3670 sscanf(buf, "%llx %d %d %x %d %d %llx %d",
3671 &sk,
3672 &prot, &pid, &groups, &rq, &wq, &cb, &rc);
3673
f271fe01 3674 netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb);
aba5acdf
SH		 3675 }
3676
b95d28c3 3677 fclose(fp);
aba5acdf
SH		 3678 return 0;
3679}
3680
6885e3bf
CG		 3681struct sock_diag_msg {
3682 __u8 sdiag_family;
3683};
3684
3685static int generic_show_sock(const struct sockaddr_nl *addr,
3686 struct nlmsghdr *nlh, void *arg)
3687{
3688 struct sock_diag_msg *r = NLMSG_DATA(nlh);
3689 struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX };
3690
3691 switch (r->sdiag_family) {
3692 case AF_INET:
3693 case AF_INET6:
3694 return show_one_inet_sock(addr, nlh, &inet_arg);
3695 case AF_UNIX:
3696 return unix_show_sock(addr, nlh, arg);
3697 case AF_PACKET:
3698 return packet_show_sock(addr, nlh, arg);
3699 case AF_NETLINK:
3700 return netlink_show_sock(addr, nlh, arg);
3701 default:
3702 return -1;
3703 }
3704}
3705
3706static int handle_follow_request(struct filter *f)
3707{
3708 int ret = -1;
3709 int groups = 0;
3710 struct rtnl_handle rth;
3711
3712 if (f->families & (1 << AF_INET) && f->dbs & (1 << TCP_DB))
3713 groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1);
3714 if (f->families & (1 << AF_INET) && f->dbs & (1 << UDP_DB))
3715 groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1);
3716 if (f->families & (1 << AF_INET6) && f->dbs & (1 << TCP_DB))
3717 groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1);
3718 if (f->families & (1 << AF_INET6) && f->dbs & (1 << UDP_DB))
3719 groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1);
3720
3721 if (groups == 0)
3722 return -1;
3723
3724 if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG))
3725 return -1;
3726
3727 rth.dump = 0;
3728 rth.local.nl_pid = 0;
3729
3730 if (rtnl_dump_filter(&rth, generic_show_sock, f))
3731 goto Exit;
3732
3733 ret = 0;
3734Exit:
3735 rtnl_close(&rth);
3736 return ret;
3737}
3738
acd1e437 3739struct snmpstat {
aba5acdf
SH		 3740 int tcp_estab;
3741};
3742
d1f28cf1 3743static int get_snmp_int(char *proto, char *key, int *result)
aba5acdf
SH		 3744{
3745 char buf[1024];
3746 FILE *fp;
3747 int protolen = strlen(proto);
3748 int keylen = strlen(key);
3749
3750 *result = 0;
3751
ab01dbbb 3752 if ((fp = net_snmp_open()) == NULL)
aba5acdf
SH		 3753 return -1;
3754
3755 while (fgets(buf, sizeof(buf), fp) != NULL) {
3756 char *p = buf;
3757 int pos = 0;
acd1e437 3758
aba5acdf
SH		 3759 if (memcmp(buf, proto, protolen))
3760 continue;
3761 while ((p = strchr(p, ' ')) != NULL) {
3762 pos++;
3763 p++;
3764 if (memcmp(p, key, keylen) == 0 &&
3765 (p[keylen] == ' ' || p[keylen] == '\n'))
3766 break;
3767 }
3768 if (fgets(buf, sizeof(buf), fp) == NULL)
3769 break;
3770 if (memcmp(buf, proto, protolen))
3771 break;
3772 p = buf;
3773 while ((p = strchr(p, ' ')) != NULL) {
3774 p++;
3775 if (--pos == 0) {
3776 sscanf(p, "%d", result);
3777 fclose(fp);
3778 return 0;
3779 }
3780 }
3781 }
3782
3783 fclose(fp);
3784 errno = ESRCH;
3785 return -1;
3786}
3787
3788
3789/* Get stats from sockstat */
3790
acd1e437 3791struct ssummary {
aba5acdf
SH		 3792 int socks;
3793 int tcp_mem;
3794 int tcp_total;
3795 int tcp_orphans;
3796 int tcp_tws;
3797 int tcp4_hashed;
3798 int udp4;
3799 int raw4;
3800 int frag4;
3801 int frag4_mem;
3802 int tcp6_hashed;
3803 int udp6;
3804 int raw6;
3805 int frag6;
3806 int frag6_mem;
3807};
3808
055840f2 3809static void get_sockstat_line(char *line, struct ssummary *s)
aba5acdf
SH		 3810{
3811 char id[256], rem[256];
3812
3813 if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2)
3814 return;
3815
3816 if (strcmp(id, "sockets:") == 0)
3817 sscanf(rem, "%*s%d", &s->socks);
3818 else if (strcmp(id, "UDP:") == 0)
3819 sscanf(rem, "%*s%d", &s->udp4);
3820 else if (strcmp(id, "UDP6:") == 0)
3821 sscanf(rem, "%*s%d", &s->udp6);
3822 else if (strcmp(id, "RAW:") == 0)
3823 sscanf(rem, "%*s%d", &s->raw4);
3824 else if (strcmp(id, "RAW6:") == 0)
3825 sscanf(rem, "%*s%d", &s->raw6);
3826 else if (strcmp(id, "TCP6:") == 0)
3827 sscanf(rem, "%*s%d", &s->tcp6_hashed);
3828 else if (strcmp(id, "FRAG:") == 0)
3829 sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem);
3830 else if (strcmp(id, "FRAG6:") == 0)
3831 sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem);
3832 else if (strcmp(id, "TCP:") == 0)
3833 sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d",
3834 &s->tcp4_hashed,
3835 &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem);
3836}
3837
055840f2 3838static int get_sockstat(struct ssummary *s)
aba5acdf
SH		 3839{
3840 char buf[256];
3841 FILE *fp;
3842
3843 memset(s, 0, sizeof(*s));
3844
ab01dbbb 3845 if ((fp = net_sockstat_open()) == NULL)
aba5acdf 3846 return -1;
acd1e437 3847 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3848 get_sockstat_line(buf, s);
3849 fclose(fp);
3850
ab01dbbb 3851 if ((fp = net_sockstat6_open()) == NULL)
aba5acdf 3852 return 0;
acd1e437 3853 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3854 get_sockstat_line(buf, s);
3855 fclose(fp);
3856
3857 return 0;
3858}
3859
d1f28cf1 3860static int print_summary(void)
aba5acdf 3861{
055840f2 3862 struct ssummary s;
aba5acdf
SH		 3863 struct snmpstat sn;
3864
3865 if (get_sockstat(&s) < 0)
3866 perror("ss: get_sockstat");
3867 if (get_snmp_int("Tcp:", "CurrEstab", &sn.tcp_estab) < 0)
3868 perror("ss: get_snmpstat");
3869
a221d621
BL		 3870 get_slabstat(&slabstat);
3871
aba5acdf
SH		 3872 printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks);
3873
3874 printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
3875 s.tcp_total + slabstat.tcp_syns + s.tcp_tws,
3876 sn.tcp_estab,
3877 s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws),
3878 s.tcp_orphans,
3879 slabstat.tcp_syns,
3880 s.tcp_tws, slabstat.tcp_tws,
3881 slabstat.tcp_ports
3882 );
3883
3884 printf("\n");
3885 printf("Transport Total IP IPv6\n");
3886 printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-");
3887 printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6);
3888 printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6);
3889 printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed);
ae665a52 3890 printf("INET %-9d %-9d %-9d\n",
aba5acdf
SH		 3891 s.raw4+s.udp4+s.tcp4_hashed+
3892 s.raw6+s.udp6+s.tcp6_hashed,
3893 s.raw4+s.udp4+s.tcp4_hashed,
3894 s.raw6+s.udp6+s.tcp6_hashed);
3895 printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6);
3896
3897 printf("\n");
3898
3899 return 0;
3900}
3901
7a96e199 3902static void _usage(FILE *dest)
aba5acdf 3903{
7a96e199 3904 fprintf(dest,
aba5acdf
SH		 3905"Usage: ss [ OPTIONS ]\n"
3906" ss [ OPTIONS ] [ FILTER ]\n"
ff041f16
VK		 3907" -h, --help this message\n"
3908" -V, --version output version information\n"
3909" -n, --numeric don't resolve service names\n"
ab61159a 3910" -r, --resolve resolve host names\n"
ff041f16
VK		 3911" -a, --all display all sockets\n"
3912" -l, --listening display listening sockets\n"
ab61159a
SH		 3913" -o, --options show timer information\n"
3914" -e, --extended show detailed socket information\n"
3915" -m, --memory show socket memory usage\n"
ff041f16
VK		 3916" -p, --processes show process using socket\n"
3917" -i, --info show internal TCP information\n"
3918" -s, --summary show socket usage summary\n"
b0f01cf6 3919" -b, --bpf show bpf filter socket information\n"
6885e3bf 3920" -E, --events continually display sockets as they are destroyed\n"
ff041f16
VK		 3921" -Z, --context display process SELinux security contexts\n"
3922" -z, --contexts display process and socket SELinux security contexts\n"
95ce04bc 3923" -N, --net switch to the specified network namespace name\n"
ab61159a
SH		 3924"\n"
3925" -4, --ipv4 display only IP version 4 sockets\n"
3926" -6, --ipv6 display only IP version 6 sockets\n"
ff041f16
VK		 3927" -0, --packet display PACKET sockets\n"
3928" -t, --tcp display only TCP sockets\n"
f89d46ad 3929" -S, --sctp display only SCTP sockets\n"
ff041f16
VK		 3930" -u, --udp display only UDP sockets\n"
3931" -d, --dccp display only DCCP sockets\n"
3932" -w, --raw display only RAW sockets\n"
3933" -x, --unix display only Unix domain sockets\n"
ab61159a 3934" -f, --family=FAMILY display sockets of type FAMILY\n"
ebef3174 3935" FAMILY := {inet|inet6|link|unix|netlink|help}\n"
ab61159a 3936"\n"
fb2594c1 3937" -K, --kill forcibly close sockets, display what was closed\n"
7a4559f6 3938" -H, --no-header Suppress header line\n"
fb2594c1 3939"\n"
583de149 3940" -A, --query=QUERY, --socket=QUERY\n"
56dee73e 3941" QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n"
ab61159a 3942"\n"
583de149 3943" -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
ab61159a 3944" -F, --filter=FILE read filter information from FILE\n"
ff041f16
VK		 3945" FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
3946" STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
3947" TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listen|closing}\n"
3948" connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3949" synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3950" bucket := {syn-recv|time-wait}\n"
3951" big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listen|closing}\n"
ab61159a 3952 );
7a96e199
AH		 3953}
3954
3955static void help(void) __attribute__((noreturn));
3956static void help(void)
3957{
3958 _usage(stdout);
3959 exit(0);
3960}
3961
3962static void usage(void) __attribute__((noreturn));
3963static void usage(void)
3964{
3965 _usage(stderr);
aba5acdf
SH		 3966 exit(-1);
3967}
3968
3969
d1f28cf1 3970static int scan_state(const char *state)
aba5acdf
SH		 3971{
3972 int i;
acd1e437 3973
aba5acdf
SH		 3974 if (strcasecmp(state, "close") == 0 ||
3975 strcasecmp(state, "closed") == 0)
3976 return (1<<SS_CLOSE);
3977 if (strcasecmp(state, "syn-rcv") == 0)
3978 return (1<<SS_SYN_RECV);
1a5bad5a 3979 if (strcasecmp(state, "established") == 0)
aba5acdf
SH		 3980 return (1<<SS_ESTABLISHED);
3981 if (strcasecmp(state, "all") == 0)
3982 return SS_ALL;
3983 if (strcasecmp(state, "connected") == 0)
3984 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN));
1a5bad5a 3985 if (strcasecmp(state, "synchronized") == 0)
aba5acdf
SH		 3986 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT));
3987 if (strcasecmp(state, "bucket") == 0)
3988 return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT);
3989 if (strcasecmp(state, "big") == 0)
3990 return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT));
acd1e437 3991 for (i = 0; i < SS_MAX; i++) {
1a5bad5a 3992 if (strcasecmp(state, sstate_namel[i]) == 0)
aba5acdf
SH		 3993 return (1<<i);
3994 }
9db7bf15
VK		 3995
3996 fprintf(stderr, "ss: wrong state name: %s\n", state);
3997 exit(-1);
aba5acdf
SH		 3998}
3999
ab61159a
SH		 4000static const struct option long_opts[] = {
4001 { "numeric", 0, 0, 'n' },
4002 { "resolve", 0, 0, 'r' },
4003 { "options", 0, 0, 'o' },
4004 { "extended", 0, 0, 'e' },
4005 { "memory", 0, 0, 'm' },
4006 { "info", 0, 0, 'i' },
4007 { "processes", 0, 0, 'p' },
372c30d2 4008 { "bpf", 0, 0, 'b' },
6885e3bf 4009 { "events", 0, 0, 'E' },
351efcde 4010 { "dccp", 0, 0, 'd' },
ab61159a 4011 { "tcp", 0, 0, 't' },
f89d46ad 4012 { "sctp", 0, 0, 'S' },
ab61159a
SH		 4013 { "udp", 0, 0, 'u' },
4014 { "raw", 0, 0, 'w' },
4015 { "unix", 0, 0, 'x' },
4016 { "all", 0, 0, 'a' },
4017 { "listening", 0, 0, 'l' },
4018 { "ipv4", 0, 0, '4' },
4019 { "ipv6", 0, 0, '6' },
4020 { "packet", 0, 0, '0' },
4021 { "family", 1, 0, 'f' },
4022 { "socket", 1, 0, 'A' },
583de149 4023 { "query", 1, 0, 'A' },
c3f346b0 4024 { "summary", 0, 0, 's' },
583de149 4025 { "diag", 1, 0, 'D' },
ab61159a
SH		 4026 { "filter", 1, 0, 'F' },
4027 { "version", 0, 0, 'V' },
4028 { "help", 0, 0, 'h' },
116ac927
RH		 4029 { "context", 0, 0, 'Z' },
4030 { "contexts", 0, 0, 'z' },
95ce04bc 4031 { "net", 1, 0, 'N' },
fb2594c1 4032 { "kill", 0, 0, 'K' },
7a4559f6 4033 { "no-header", 0, 0, 'H' },
ab61159a 4034 { 0 }
ae665a52 4035
ab61159a
SH		 4036};
4037
aba5acdf
SH		 4038int main(int argc, char *argv[])
4039{
aba5acdf
SH		 4040 int saw_states = 0;
4041 int saw_query = 0;
4042 int do_summary = 0;
7d105b56 4043 const char *dump_tcpdiag = NULL;
aba5acdf
SH		 4044 FILE *filter_fp = NULL;
4045 int ch;
9db7bf15 4046 int state_filter = 0;
aba5acdf 4047
f89d46ad 4048 while ((ch = getopt_long(argc, argv, "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHS",
ab61159a 4049 long_opts, NULL)) != EOF) {
acd1e437 4050 switch (ch) {
aba5acdf
SH		 4051 case 'n':
4052 resolve_services = 0;
4053 break;
4054 case 'r':
4055 resolve_hosts = 1;
4056 break;
4057 case 'o':
4058 show_options = 1;
4059 break;
4060 case 'e':
4061 show_options = 1;
4062 show_details++;
4063 break;
4064 case 'm':
4065 show_mem = 1;
4066 break;
4067 case 'i':
4068 show_tcpinfo = 1;
4069 break;
4070 case 'p':
4071 show_users++;
fbc0f876 4072 user_ent_hash_build();
aba5acdf 4073 break;
372c30d2
ND		 4074 case 'b':
4075 show_options = 1;
4076 show_bpf++;
4077 break;
6885e3bf
CG		 4078 case 'E':
4079 follow_events = 1;
4080 break;
351efcde 4081 case 'd':
57ff5a10 4082 filter_db_set(&current_filter, DCCP_DB);
351efcde 4083 break;
aba5acdf 4084 case 't':
57ff5a10 4085 filter_db_set(&current_filter, TCP_DB);
aba5acdf 4086 break;
f89d46ad
PS		 4087 case 'S':
4088 filter_db_set(&current_filter, SCTP_DB);
4089 break;
aba5acdf 4090 case 'u':
57ff5a10 4091 filter_db_set(&current_filter, UDP_DB);
aba5acdf
SH		 4092 break;
4093 case 'w':
57ff5a10 4094 filter_db_set(&current_filter, RAW_DB);
aba5acdf
SH		 4095 break;
4096 case 'x':
9db7bf15 4097 filter_af_set(&current_filter, AF_UNIX);
aba5acdf
SH		 4098 break;
4099 case 'a':
9db7bf15 4100 state_filter = SS_ALL;
aba5acdf
SH		 4101 break;
4102 case 'l':
9db7bf15 4103 state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE);
aba5acdf
SH		 4104 break;
4105 case '4':
9db7bf15 4106 filter_af_set(&current_filter, AF_INET);
aba5acdf
SH		 4107 break;
4108 case '6':
9db7bf15 4109 filter_af_set(&current_filter, AF_INET6);
aba5acdf
SH		 4110 break;
4111 case '0':
9db7bf15 4112 filter_af_set(&current_filter, AF_PACKET);
aba5acdf
SH		 4113 break;
4114 case 'f':
4115 if (strcmp(optarg, "inet") == 0)
9db7bf15 4116 filter_af_set(&current_filter, AF_INET);
aba5acdf 4117 else if (strcmp(optarg, "inet6") == 0)
9db7bf15 4118 filter_af_set(&current_filter, AF_INET6);
aba5acdf 4119 else if (strcmp(optarg, "link") == 0)
9db7bf15 4120 filter_af_set(&current_filter, AF_PACKET);
aba5acdf 4121 else if (strcmp(optarg, "unix") == 0)
9db7bf15 4122 filter_af_set(&current_filter, AF_UNIX);
aba5acdf 4123 else if (strcmp(optarg, "netlink") == 0)
9db7bf15 4124 filter_af_set(&current_filter, AF_NETLINK);
aba5acdf 4125 else if (strcmp(optarg, "help") == 0)
7a96e199 4126 help();
aba5acdf 4127 else {
9db7bf15
VK		 4128 fprintf(stderr, "ss: \"%s\" is invalid family\n",
4129 optarg);
aba5acdf
SH		 4130 usage();
4131 }
4132 break;
4133 case 'A':
4134 {
4135 char *p, *p1;
acd1e437 4136
aba5acdf
SH		 4137 if (!saw_query) {
4138 current_filter.dbs = 0;
7f9dddbe 4139 state_filter = state_filter ?
acd1e437 4140 state_filter : SS_CONN;
aba5acdf
SH		 4141 saw_query = 1;
4142 do_default = 0;
4143 }
4144 p = p1 = optarg;
4145 do {
4146 if ((p1 = strchr(p, ',')) != NULL)
ae665a52 4147 *p1 = 0;
aba5acdf 4148 if (strcmp(p, "all") == 0) {
57ff5a10 4149 filter_default_dbs(&current_filter);
aba5acdf 4150 } else if (strcmp(p, "inet") == 0) {
57ff5a10
VK		 4151 filter_db_set(&current_filter, UDP_DB);
4152 filter_db_set(&current_filter, DCCP_DB);
4153 filter_db_set(&current_filter, TCP_DB);
f89d46ad 4154 filter_db_set(&current_filter, SCTP_DB);
57ff5a10 4155 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4156 } else if (strcmp(p, "udp") == 0) {
57ff5a10 4157 filter_db_set(&current_filter, UDP_DB);
351efcde 4158 } else if (strcmp(p, "dccp") == 0) {
57ff5a10 4159 filter_db_set(&current_filter, DCCP_DB);
aba5acdf 4160 } else if (strcmp(p, "tcp") == 0) {
57ff5a10 4161 filter_db_set(&current_filter, TCP_DB);
f89d46ad
PS		 4162 } else if (strcmp(p, "sctp") == 0) {
4163 filter_db_set(&current_filter, SCTP_DB);
aba5acdf 4164 } else if (strcmp(p, "raw") == 0) {
57ff5a10 4165 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4166 } else if (strcmp(p, "unix") == 0) {
57ff5a10
VK		 4167 filter_db_set(&current_filter, UNIX_ST_DB);
4168 filter_db_set(&current_filter, UNIX_DG_DB);
4169 filter_db_set(&current_filter, UNIX_SQ_DB);
1a5bad5a 4170 } else if (strcasecmp(p, "unix_stream") == 0 ||
aba5acdf 4171 strcmp(p, "u_str") == 0) {
57ff5a10 4172 filter_db_set(&current_filter, UNIX_ST_DB);
1a5bad5a 4173 } else if (strcasecmp(p, "unix_dgram") == 0 ||
aba5acdf 4174 strcmp(p, "u_dgr") == 0) {
57ff5a10 4175 filter_db_set(&current_filter, UNIX_DG_DB);
30b669d7
MY		 4176 } else if (strcasecmp(p, "unix_seqpacket") == 0 ||
4177 strcmp(p, "u_seq") == 0) {
57ff5a10 4178 filter_db_set(&current_filter, UNIX_SQ_DB);
aba5acdf 4179 } else if (strcmp(p, "packet") == 0) {
57ff5a10
VK		 4180 filter_db_set(&current_filter, PACKET_R_DB);
4181 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf
SH		 4182 } else if (strcmp(p, "packet_raw") == 0 ||
4183 strcmp(p, "p_raw") == 0) {
57ff5a10 4184 filter_db_set(&current_filter, PACKET_R_DB);
aba5acdf
SH		 4185 } else if (strcmp(p, "packet_dgram") == 0 ||
4186 strcmp(p, "p_dgr") == 0) {
57ff5a10 4187 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf 4188 } else if (strcmp(p, "netlink") == 0) {
57ff5a10 4189 filter_db_set(&current_filter, NETLINK_DB);
aba5acdf
SH		 4190 } else {
4191 fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p);
4192 usage();
4193 }
4194 p = p1 + 1;
4195 } while (p1);
4196 break;
4197 }
4198 case 's':
4199 do_summary = 1;
4200 break;
4201 case 'D':
4202 dump_tcpdiag = optarg;
4203 break;
4204 case 'F':
4205 if (filter_fp) {
4206 fprintf(stderr, "More than one filter file\n");
4207 exit(-1);
4208 }
4209 if (optarg[0] == '-')
4210 filter_fp = stdin;
4211 else
4212 filter_fp = fopen(optarg, "r");
4213 if (!filter_fp) {
4214 perror("fopen filter file");
4215 exit(-1);
4216 }
4217 break;
4218 case 'v':
4219 case 'V':
4220 printf("ss utility, iproute2-ss%s\n", SNAPSHOT);
4221 exit(0);
116ac927
RH		 4222 case 'z':
4223 show_sock_ctx++;
4224 case 'Z':
4225 if (is_selinux_enabled() <= 0) {
4226 fprintf(stderr, "ss: SELinux is not enabled.\n");
4227 exit(1);
4228 }
4229 show_proc_ctx++;
4230 user_ent_hash_build();
4231 break;
95ce04bc
VK		 4232 case 'N':
4233 if (netns_switch(optarg))
4234 exit(1);
4235 break;
fb2594c1
LC		 4236 case 'K':
4237 current_filter.kill = 1;
4238 break;
7a4559f6
DA		 4239 case 'H':
4240 show_header = 0;
4241 break;
aba5acdf 4242 case 'h':
7a96e199 4243 help();
f73105ab 4244 case '?':
aba5acdf
SH		 4245 default:
4246 usage();
4247 }
4248 }
4249
4250 argc -= optind;
4251 argv += optind;
4252
aba5acdf
SH		 4253 if (do_summary) {
4254 print_summary();
4255 if (do_default && argc == 0)
4256 exit(0);
4257 }
4258
aba5acdf
SH		 4259 while (argc > 0) {
4260 if (strcmp(*argv, "state") == 0) {
4261 NEXT_ARG();
4262 if (!saw_states)
9db7bf15
VK		 4263 state_filter = 0;
4264 state_filter |= scan_state(*argv);
aba5acdf
SH		 4265 saw_states = 1;
4266 } else if (strcmp(*argv, "exclude") == 0 ||
4267 strcmp(*argv, "excl") == 0) {
4268 NEXT_ARG();
4269 if (!saw_states)
9db7bf15
VK		 4270 state_filter = SS_ALL;
4271 state_filter &= ~scan_state(*argv);
aba5acdf
SH		 4272 saw_states = 1;
4273 } else {
aba5acdf
SH		 4274 break;
4275 }
4276 argc--; argv++;
4277 }
4278
9db7bf15
VK		 4279 if (do_default) {
4280 state_filter = state_filter ? state_filter : SS_CONN;
4281 filter_default_dbs(&current_filter);
9db7bf15
VK		 4282 }
4283
57ff5a10
VK		 4284 filter_states_set(&current_filter, state_filter);
4285 filter_merge_defaults(&current_filter);
4286
9db7bf15 4287 if (resolve_services && resolve_hosts &&
f89d46ad 4288 (current_filter.dbs&(UNIX_DBM|(1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<SCTP_DB))))
9db7bf15
VK		 4289 init_service_resolver();
4290
4291
4292 if (current_filter.dbs == 0) {
4293 fprintf(stderr, "ss: no socket tables to show with such filter.\n");
4294 exit(0);
4295 }
4296 if (current_filter.families == 0) {
4297 fprintf(stderr, "ss: no families to show with such filter.\n");
4298 exit(0);
4299 }
aba5acdf
SH		 4300 if (current_filter.states == 0) {
4301 fprintf(stderr, "ss: no socket states to show with such filter.\n");
4302 exit(0);
4303 }
4304
4305 if (dump_tcpdiag) {
4306 FILE *dump_fp = stdout;
acd1e437 4307
aba5acdf
SH		 4308 if (!(current_filter.dbs & (1<<TCP_DB))) {
4309 fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n");
4310 exit(0);
4311 }
4312 if (dump_tcpdiag[0] != '-') {
4313 dump_fp = fopen(dump_tcpdiag, "w");
4314 if (!dump_tcpdiag) {
4315 perror("fopen dump file");
4316 exit(-1);
4317 }
4318 }
3fe5b534 4319 inet_show_netlink(&current_filter, dump_fp, IPPROTO_TCP);
aba5acdf
SH		 4320 fflush(dump_fp);
4321 exit(0);
4322 }
4323
1527a17e
VK		 4324 if (ssfilter_parse(&current_filter.f, argc, argv, filter_fp))
4325 usage();
4326
aba5acdf
SH		 4327 netid_width = 0;
4328 if (current_filter.dbs&(current_filter.dbs-1))
4329 netid_width = 5;
4330
4331 state_width = 0;
4332 if (current_filter.states&(current_filter.states-1))
4333 state_width = 10;
4334
4335 screen_width = 80;
4336 if (isatty(STDOUT_FILENO)) {
4337 struct winsize w;
4338
4339 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) {
4340 if (w.ws_col > 0)
4341 screen_width = w.ws_col;
4342 }
4343 }
4344
4345 addrp_width = screen_width;
4346 addrp_width -= netid_width+1;
4347 addrp_width -= state_width+1;
4348 addrp_width -= 14;
4349
4350 if (addrp_width&1) {
4351 if (netid_width)
4352 netid_width++;
4353 else if (state_width)
4354 state_width++;
4355 }
4356
4357 addrp_width /= 2;
4358 addrp_width--;
4359
4360 serv_width = resolve_services ? 7 : 5;
4361
4362 if (addrp_width < 15+serv_width+1)
4363 addrp_width = 15+serv_width+1;
4364
ae665a52 4365 addr_width = addrp_width - serv_width - 1;
aba5acdf 4366
7a4559f6
DA		 4367 if (show_header) {
4368 if (netid_width)
4369 printf("%-*s ", netid_width, "Netid");
4370 if (state_width)
4371 printf("%-*s ", state_width, "State");
4372 printf("%-6s %-6s ", "Recv-Q", "Send-Q");
4373 }
aba5acdf 4374
d68e00f7 4375 /* Make enough space for the local/remote port field */
4376 addr_width -= 13;
4377 serv_width += 13;
2dc85485 4378
7a4559f6
DA		 4379 if (show_header) {
4380 printf("%*s:%-*s %*s:%-*s\n",
4381 addr_width, "Local Address", serv_width, "Port",
4382 addr_width, "Peer Address", serv_width, "Port");
4383 }
aba5acdf 4384
aba5acdf
SH		 4385 fflush(stdout);
4386
6885e3bf
CG		 4387 if (follow_events)
4388 exit(handle_follow_request(&current_filter));
4389
aba5acdf
SH		 4390 if (current_filter.dbs & (1<<NETLINK_DB))
4391 netlink_show(&current_filter);
4392 if (current_filter.dbs & PACKET_DBM)
4393 packet_show(&current_filter);
4394 if (current_filter.dbs & UNIX_DBM)
4395 unix_show(&current_filter);
4396 if (current_filter.dbs & (1<<RAW_DB))
4397 raw_show(&current_filter);
4398 if (current_filter.dbs & (1<<UDP_DB))
4399 udp_show(&current_filter);
4400 if (current_filter.dbs & (1<<TCP_DB))
3fe5b534 4401 tcp_show(&current_filter, IPPROTO_TCP);
351efcde 4402 if (current_filter.dbs & (1<<DCCP_DB))
3fe5b534 4403 tcp_show(&current_filter, IPPROTO_DCCP);
f89d46ad
PS		 4404 if (current_filter.dbs & (1<<SCTP_DB))
4405 sctp_show(&current_filter);
116ac927
RH		 4406
4407 if (show_users || show_proc_ctx || show_sock_ctx)
4408 user_ent_destroy();
4409
aba5acdf
SH		 4410 return 0;
4411}
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