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ip maddr: fix filtering by device
[mirror_iproute2.git] / misc / ss.c
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b9de3ecf 1/*
aba5acdf
SH		 2 * ss.c "sockstat", socket statistics
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
10 */
11
12#include <stdio.h>
13#include <stdlib.h>
14#include <unistd.h>
15#include <syslog.h>
16#include <fcntl.h>
17#include <sys/ioctl.h>
18#include <sys/socket.h>
19#include <sys/uio.h>
20#include <netinet/in.h>
21#include <string.h>
22#include <errno.h>
23#include <netdb.h>
24#include <arpa/inet.h>
aba5acdf
SH		 25#include <dirent.h>
26#include <fnmatch.h>
ab61159a 27#include <getopt.h>
bf4ceee6 28#include <stdbool.h>
6b376ebd 29#include <limits.h>
aba5acdf
SH		 30
31#include "utils.h"
32#include "rt_names.h"
33#include "ll_map.h"
34#include "libnetlink.h"
95ce04bc 35#include "namespace.h"
aba5acdf
SH		 36#include "SNAPSHOT.h"
37
9cb1eccf 38#include <linux/tcp.h>
f6062360 39#include <linux/sock_diag.h>
351efcde 40#include <linux/inet_diag.h>
dfbaa90d 41#include <linux/unix_diag.h>
372c30d2
ND		 42#include <linux/netdevice.h> /* for MAX_ADDR_LEN */
43#include <linux/filter.h>
44#include <linux/packet_diag.h>
ecb928c8 45#include <linux/netlink_diag.h>
f89d46ad 46#include <linux/sctp.h>
aba5acdf 47
8a4025f6 48#define MAGIC_SEQ 123456
49
5fb421d4 50#define DIAG_REQUEST(_req, _r) \
51 struct { \
52 struct nlmsghdr nlh; \
53 _r; \
54 } _req = { \
55 .nlh = { \
56 .nlmsg_type = SOCK_DIAG_BY_FAMILY, \
57 .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\
8a4025f6 58 .nlmsg_seq = MAGIC_SEQ, \
5fb421d4 59 .nlmsg_len = sizeof(_req), \
60 }, \
61 }
62
116ac927
RH		 63#if HAVE_SELINUX
64#include <selinux/selinux.h>
65#else
66/* Stubs for SELinux functions */
67static int is_selinux_enabled(void)
68{
69 return -1;
70}
71
72static int getpidcon(pid_t pid, char **context)
73{
74 *context = NULL;
75 return -1;
76}
77
78static int getfilecon(char *path, char **context)
79{
80 *context = NULL;
81 return -1;
82}
83
84static int security_get_initial_context(char *name, char **context)
85{
86 *context = NULL;
87 return -1;
88}
89#endif
90
acd1e437 91int resolve_hosts;
aba5acdf
SH		 92int resolve_services = 1;
93int preferred_family = AF_UNSPEC;
acd1e437
SH		 94int show_options;
95int show_details;
96int show_users;
97int show_mem;
98int show_tcpinfo;
99int show_bpf;
100int show_proc_ctx;
101int show_sock_ctx;
7a4559f6 102int show_header = 1;
acd1e437 103int follow_events;
f89d46ad 104int sctp_ino;
aba5acdf
SH		 105
106int netid_width;
107int state_width;
aba5acdf
SH		 108int addr_width;
109int serv_width;
aba5acdf
SH		 110
111static const char *TCP_PROTO = "tcp";
f89d46ad 112static const char *SCTP_PROTO = "sctp";
aba5acdf
SH		 113static const char *UDP_PROTO = "udp";
114static const char *RAW_PROTO = "raw";
acd1e437 115static const char *dg_proto;
aba5acdf 116
acd1e437 117enum {
aba5acdf 118 TCP_DB,
351efcde 119 DCCP_DB,
aba5acdf
SH		 120 UDP_DB,
121 RAW_DB,
122 UNIX_DG_DB,
123 UNIX_ST_DB,
30b669d7 124 UNIX_SQ_DB,
aba5acdf
SH		 125 PACKET_DG_DB,
126 PACKET_R_DB,
127 NETLINK_DB,
f89d46ad 128 SCTP_DB,
aba5acdf
SH		 129 MAX_DB
130};
131
132#define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
30b669d7 133#define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB))
aba5acdf 134#define ALL_DB ((1<<MAX_DB)-1)
168d97f9
SH		 135#define INET_L4_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<SCTP_DB))
136#define INET_DBM (INET_L4_DBM | (1<<RAW_DB))
aba5acdf
SH		 137
138enum {
7d105b56
SH		 139 SS_UNKNOWN,
140 SS_ESTABLISHED,
141 SS_SYN_SENT,
142 SS_SYN_RECV,
143 SS_FIN_WAIT1,
144 SS_FIN_WAIT2,
145 SS_TIME_WAIT,
146 SS_CLOSE,
147 SS_CLOSE_WAIT,
148 SS_LAST_ACK,
149 SS_LISTEN,
150 SS_CLOSING,
151 SS_MAX
aba5acdf
SH		 152};
153
f89d46ad
PS		 154enum {
155 SCTP_STATE_CLOSED = 0,
156 SCTP_STATE_COOKIE_WAIT = 1,
157 SCTP_STATE_COOKIE_ECHOED = 2,
158 SCTP_STATE_ESTABLISHED = 3,
159 SCTP_STATE_SHUTDOWN_PENDING = 4,
160 SCTP_STATE_SHUTDOWN_SENT = 5,
161 SCTP_STATE_SHUTDOWN_RECEIVED = 6,
162 SCTP_STATE_SHUTDOWN_ACK_SENT = 7,
163};
164
9db7bf15
VK		 165#define SS_ALL ((1 << SS_MAX) - 1)
166#define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)))
aba5acdf
SH		 167
168#include "ssfilter.h"
169
acd1e437 170struct filter {
aba5acdf
SH		 171 int dbs;
172 int states;
173 int families;
174 struct ssfilter *f;
fb2594c1 175 bool kill;
aba5acdf
SH		 176};
177
9db7bf15
VK		 178static const struct filter default_dbs[MAX_DB] = {
179 [TCP_DB] = {
180 .states = SS_CONN,
181 .families = (1 << AF_INET) | (1 << AF_INET6),
182 },
183 [DCCP_DB] = {
184 .states = SS_CONN,
185 .families = (1 << AF_INET) | (1 << AF_INET6),
186 },
187 [UDP_DB] = {
f42a4574 188 .states = (1 << SS_ESTABLISHED),
9db7bf15
VK		 189 .families = (1 << AF_INET) | (1 << AF_INET6),
190 },
191 [RAW_DB] = {
f42a4574 192 .states = (1 << SS_ESTABLISHED),
9db7bf15
VK		 193 .families = (1 << AF_INET) | (1 << AF_INET6),
194 },
195 [UNIX_DG_DB] = {
196 .states = (1 << SS_CLOSE),
197 .families = (1 << AF_UNIX),
198 },
199 [UNIX_ST_DB] = {
200 .states = SS_CONN,
201 .families = (1 << AF_UNIX),
202 },
203 [UNIX_SQ_DB] = {
204 .states = SS_CONN,
205 .families = (1 << AF_UNIX),
206 },
207 [PACKET_DG_DB] = {
208 .states = (1 << SS_CLOSE),
209 .families = (1 << AF_PACKET),
210 },
211 [PACKET_R_DB] = {
212 .states = (1 << SS_CLOSE),
213 .families = (1 << AF_PACKET),
214 },
215 [NETLINK_DB] = {
216 .states = (1 << SS_CLOSE),
217 .families = (1 << AF_NETLINK),
218 },
f89d46ad
PS		 219 [SCTP_DB] = {
220 .states = SS_CONN,
221 .families = (1 << AF_INET) | (1 << AF_INET6),
222 },
aba5acdf
SH		 223};
224
9db7bf15
VK		 225static const struct filter default_afs[AF_MAX] = {
226 [AF_INET] = {
227 .dbs = INET_DBM,
228 .states = SS_CONN,
229 },
230 [AF_INET6] = {
231 .dbs = INET_DBM,
232 .states = SS_CONN,
233 },
234 [AF_UNIX] = {
235 .dbs = UNIX_DBM,
236 .states = SS_CONN,
237 },
238 [AF_PACKET] = {
239 .dbs = PACKET_DBM,
240 .states = (1 << SS_CLOSE),
241 },
242 [AF_NETLINK] = {
243 .dbs = (1 << NETLINK_DB),
244 .states = (1 << SS_CLOSE),
245 },
246};
247
248static int do_default = 1;
249static struct filter current_filter;
250
251static void filter_db_set(struct filter *f, int db)
252{
253 f->states |= default_dbs[db].states;
9db7bf15
VK		 254 f->dbs |= 1 << db;
255 do_default = 0;
256}
257
258static void filter_af_set(struct filter *f, int af)
259{
1527a17e
VK		 260 f->states |= default_afs[af].states;
261 f->families |= 1 << af;
262 do_default = 0;
263 preferred_family = af;
9db7bf15
VK		 264}
265
266static int filter_af_get(struct filter *f, int af)
267{
268 return f->families & (1 << af);
269}
270
271static void filter_default_dbs(struct filter *f)
272{
273 filter_db_set(f, UDP_DB);
274 filter_db_set(f, DCCP_DB);
275 filter_db_set(f, TCP_DB);
276 filter_db_set(f, RAW_DB);
277 filter_db_set(f, UNIX_ST_DB);
278 filter_db_set(f, UNIX_DG_DB);
279 filter_db_set(f, UNIX_SQ_DB);
280 filter_db_set(f, PACKET_R_DB);
281 filter_db_set(f, PACKET_DG_DB);
282 filter_db_set(f, NETLINK_DB);
f89d46ad 283 filter_db_set(f, SCTP_DB);
9db7bf15
VK		 284}
285
57ff5a10 286static void filter_states_set(struct filter *f, int states)
9db7bf15 287{
57ff5a10 288 if (states)
9d320e1e 289 f->states = states;
57ff5a10 290}
9db7bf15 291
57ff5a10
VK		 292static void filter_merge_defaults(struct filter *f)
293{
294 int db;
295 int af;
9db7bf15 296
57ff5a10
VK		 297 for (db = 0; db < MAX_DB; db++) {
298 if (!(f->dbs & (1 << db)))
299 continue;
9db7bf15 300
57ff5a10
VK		 301 if (!(default_dbs[db].families & f->families))
302 f->families |= default_dbs[db].families;
303 }
304 for (af = 0; af < AF_MAX; af++) {
305 if (!(f->families & (1 << af)))
306 continue;
307
308 if (!(default_afs[af].dbs & f->dbs))
309 f->dbs |= default_afs[af].dbs;
310 }
9db7bf15 311}
aba5acdf 312
ab01dbbb 313static FILE *generic_proc_open(const char *env, const char *name)
aba5acdf 314{
ab01dbbb 315 const char *p = getenv(env);
aba5acdf 316 char store[128];
ab01dbbb 317
aba5acdf
SH		 318 if (!p) {
319 p = getenv("PROC_ROOT") ? : "/proc";
320 snprintf(store, sizeof(store)-1, "%s/%s", p, name);
321 p = store;
322 }
ab01dbbb
SH		 323
324 return fopen(p, "r");
aba5acdf 325}
0cb74a86
PS		 326#define net_tcp_open() generic_proc_open("PROC_NET_TCP", "net/tcp")
327#define net_tcp6_open() generic_proc_open("PROC_NET_TCP6", "net/tcp6")
328#define net_udp_open() generic_proc_open("PROC_NET_UDP", "net/udp")
329#define net_udp6_open() generic_proc_open("PROC_NET_UDP6", "net/udp6")
330#define net_raw_open() generic_proc_open("PROC_NET_RAW", "net/raw")
331#define net_raw6_open() generic_proc_open("PROC_NET_RAW6", "net/raw6")
332#define net_unix_open() generic_proc_open("PROC_NET_UNIX", "net/unix")
333#define net_packet_open() generic_proc_open("PROC_NET_PACKET", \
334 "net/packet")
335#define net_netlink_open() generic_proc_open("PROC_NET_NETLINK", \
336 "net/netlink")
337#define slabinfo_open() generic_proc_open("PROC_SLABINFO", "slabinfo")
338#define net_sockstat_open() generic_proc_open("PROC_NET_SOCKSTAT", \
339 "net/sockstat")
340#define net_sockstat6_open() generic_proc_open("PROC_NET_SOCKSTAT6", \
341 "net/sockstat6")
342#define net_snmp_open() generic_proc_open("PROC_NET_SNMP", "net/snmp")
343#define ephemeral_ports_open() generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", \
344 "sys/net/ipv4/ip_local_port_range")
aba5acdf 345
fbc0f876
SF		 346struct user_ent {
347 struct user_ent *next;
348 unsigned int ino;
349 int pid;
350 int fd;
116ac927
RH		 351 char *process;
352 char *process_ctx;
353 char *socket_ctx;
fbc0f876
SF		 354};
355
356#define USER_ENT_HASH_SIZE 256
357struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE];
358
359static int user_ent_hashfn(unsigned int ino)
aba5acdf 360{
fbc0f876 361 int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino;
aba5acdf 362
fbc0f876
SF		 363 return val & (USER_ENT_HASH_SIZE - 1);
364}
365
116ac927
RH		 366static void user_ent_add(unsigned int ino, char *process,
367 int pid, int fd,
368 char *proc_ctx,
369 char *sock_ctx)
fbc0f876
SF		 370{
371 struct user_ent *p, **pp;
aba5acdf 372
116ac927
RH		 373 p = malloc(sizeof(struct user_ent));
374 if (!p) {
375 fprintf(stderr, "ss: failed to malloc buffer\n");
fbc0f876 376 abort();
116ac927 377 }
fbc0f876
SF		 378 p->next = NULL;
379 p->ino = ino;
380 p->pid = pid;
381 p->fd = fd;
116ac927
RH		 382 p->process = strdup(process);
383 p->process_ctx = strdup(proc_ctx);
384 p->socket_ctx = strdup(sock_ctx);
fbc0f876
SF		 385
386 pp = &user_ent_hash[user_ent_hashfn(ino)];
387 p->next = *pp;
388 *pp = p;
389}
aba5acdf 390
116ac927
RH		 391static void user_ent_destroy(void)
392{
393 struct user_ent *p, *p_next;
394 int cnt = 0;
395
396 while (cnt != USER_ENT_HASH_SIZE) {
397 p = user_ent_hash[cnt];
398 while (p) {
399 free(p->process);
400 free(p->process_ctx);
401 free(p->socket_ctx);
402 p_next = p->next;
403 free(p);
404 p = p_next;
405 }
406 cnt++;
407 }
408}
409
fbc0f876
SF		 410static void user_ent_hash_build(void)
411{
412 const char *root = getenv("PROC_ROOT") ? : "/proc/";
413 struct dirent *d;
414 char name[1024];
415 int nameoff;
416 DIR *dir;
116ac927
RH		 417 char *pid_context;
418 char *sock_context;
419 const char *no_ctx = "unavailable";
b25bad2f 420 static int user_ent_hash_build_init;
116ac927
RH		 421
422 /* If show_users & show_proc_ctx set only do this once */
423 if (user_ent_hash_build_init != 0)
424 return;
425
426 user_ent_hash_build_init = 1;
fbc0f876 427
18f156bf 428 strlcpy(name, root, sizeof(name));
0ee9052f 429
fbc0f876 430 if (strlen(name) == 0 || name[strlen(name)-1] != '/')
aba5acdf 431 strcat(name, "/");
fbc0f876 432
aba5acdf 433 nameoff = strlen(name);
fbc0f876
SF		 434
435 dir = opendir(name);
436 if (!dir)
437 return;
aba5acdf
SH		 438
439 while ((d = readdir(dir)) != NULL) {
aba5acdf 440 struct dirent *d1;
aba5acdf 441 char process[16];
116ac927 442 char *p;
fbc0f876
SF		 443 int pid, pos;
444 DIR *dir1;
445 char crap;
aba5acdf
SH		 446
447 if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1)
448 continue;
449
116ac927
RH		 450 if (getpidcon(pid, &pid_context) != 0)
451 pid_context = strdup(no_ctx);
452
0ee9052f 453 snprintf(name + nameoff, sizeof(name) - nameoff, "%d/fd/", pid);
aba5acdf 454 pos = strlen(name);
a02371fb
PS		 455 if ((dir1 = opendir(name)) == NULL) {
456 free(pid_context);
aba5acdf 457 continue;
a02371fb 458 }
aba5acdf 459
fbc0f876 460 process[0] = '\0';
116ac927 461 p = process;
aba5acdf
SH		 462
463 while ((d1 = readdir(dir1)) != NULL) {
fbc0f876
SF		 464 const char *pattern = "socket:[";
465 unsigned int ino;
aba5acdf 466 char lnk[64];
18445b3e 467 int fd;
788731b3 468 ssize_t link_len;
116ac927 469 char tmp[1024];
aba5acdf
SH		 470
471 if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1)
472 continue;
473
0ee9052f 474 snprintf(name+pos, sizeof(name) - pos, "%d", fd);
788731b3
TJ		 475
476 link_len = readlink(name, lnk, sizeof(lnk)-1);
477 if (link_len == -1)
478 continue;
479 lnk[link_len] = '\0';
480
481 if (strncmp(lnk, pattern, strlen(pattern)))
aba5acdf
SH		 482 continue;
483
fbc0f876 484 sscanf(lnk, "socket:[%u]", &ino);
aba5acdf 485
116ac927
RH		 486 snprintf(tmp, sizeof(tmp), "%s/%d/fd/%s",
487 root, pid, d1->d_name);
488
489 if (getfilecon(tmp, &sock_context) <= 0)
490 sock_context = strdup(no_ctx);
491
492 if (*p == '\0') {
aba5acdf 493 FILE *fp;
fbc0f876 494
116ac927
RH		 495 snprintf(tmp, sizeof(tmp), "%s/%d/stat",
496 root, pid);
aba5acdf 497 if ((fp = fopen(tmp, "r")) != NULL) {
d572ed4d
PS		 498 if (fscanf(fp, "%*d (%[^)])", p) < 1)
499 ; /* ignore */
aba5acdf
SH		 500 fclose(fp);
501 }
502 }
116ac927
RH		 503 user_ent_add(ino, p, pid, fd,
504 pid_context, sock_context);
505 free(sock_context);
aba5acdf 506 }
116ac927 507 free(pid_context);
aba5acdf
SH		 508 closedir(dir1);
509 }
510 closedir(dir);
fbc0f876
SF		 511}
512
116ac927
RH		 513enum entry_types {
514 USERS,
515 PROC_CTX,
516 PROC_SOCK_CTX
517};
518
519#define ENTRY_BUF_SIZE 512
acd1e437 520static int find_entry(unsigned int ino, char **buf, int type)
fbc0f876
SF		 521{
522 struct user_ent *p;
523 int cnt = 0;
524 char *ptr;
532ca40a 525 char *new_buf;
116ac927
RH		 526 int len, new_buf_len;
527 int buf_used = 0;
528 int buf_len = 0;
fbc0f876
SF		 529
530 if (!ino)
531 return 0;
532
533 p = user_ent_hash[user_ent_hashfn(ino)];
116ac927 534 ptr = *buf = NULL;
fbc0f876
SF		 535 while (p) {
536 if (p->ino != ino)
537 goto next;
538
116ac927
RH		 539 while (1) {
540 ptr = *buf + buf_used;
541 switch (type) {
542 case USERS:
543 len = snprintf(ptr, buf_len - buf_used,
544 "(\"%s\",pid=%d,fd=%d),",
545 p->process, p->pid, p->fd);
546 break;
547 case PROC_CTX:
548 len = snprintf(ptr, buf_len - buf_used,
549 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),",
550 p->process, p->pid,
551 p->process_ctx, p->fd);
552 break;
553 case PROC_SOCK_CTX:
554 len = snprintf(ptr, buf_len - buf_used,
555 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),",
556 p->process, p->pid,
557 p->process_ctx, p->fd,
558 p->socket_ctx);
559 break;
560 default:
561 fprintf(stderr, "ss: invalid type: %d\n", type);
562 abort();
563 }
fbc0f876 564
116ac927
RH		 565 if (len < 0 || len >= buf_len - buf_used) {
566 new_buf_len = buf_len + ENTRY_BUF_SIZE;
532ca40a 567 new_buf = realloc(*buf, new_buf_len);
116ac927
RH		 568 if (!new_buf) {
569 fprintf(stderr, "ss: failed to malloc buffer\n");
570 abort();
571 }
532ca40a 572 *buf = new_buf;
116ac927
RH		 573 buf_len = new_buf_len;
574 continue;
575 } else {
576 buf_used += len;
577 break;
578 }
579 }
fbc0f876 580 cnt++;
116ac927 581next:
fbc0f876
SF		 582 p = p->next;
583 }
116ac927
RH		 584 if (buf_used) {
585 ptr = *buf + buf_used;
fbc0f876 586 ptr[-1] = '\0';
116ac927 587 }
aba5acdf
SH		 588 return cnt;
589}
590
aba5acdf
SH		 591/* Get stats from slab */
592
acd1e437 593struct slabstat {
aba5acdf
SH		 594 int socks;
595 int tcp_ports;
596 int tcp_tws;
597 int tcp_syns;
598 int skbs;
599};
600
a221d621 601static struct slabstat slabstat;
aba5acdf 602
d1f28cf1 603static int get_slabstat(struct slabstat *s)
aba5acdf
SH		 604{
605 char buf[256];
606 FILE *fp;
607 int cnt;
a221d621 608 static int slabstat_valid;
b3535dd6
PS		 609 static const char * const slabstat_ids[] = {
610 "sock",
611 "tcp_bind_bucket",
612 "tcp_tw_bucket",
613 "tcp_open_request",
614 "skbuff_head_cache",
615 };
a221d621
BL		 616
617 if (slabstat_valid)
618 return 0;
aba5acdf
SH		 619
620 memset(s, 0, sizeof(*s));
621
ab01dbbb
SH		 622 fp = slabinfo_open();
623 if (!fp)
aba5acdf
SH		 624 return -1;
625
626 cnt = sizeof(*s)/sizeof(int);
627
d572ed4d
PS		 628 if (!fgets(buf, sizeof(buf), fp)) {
629 fclose(fp);
630 return -1;
631 }
acd1e437 632 while (fgets(buf, sizeof(buf), fp) != NULL) {
aba5acdf 633 int i;
acd1e437 634
62000e51 635 for (i = 0; i < ARRAY_SIZE(slabstat_ids); i++) {
aba5acdf
SH		 636 if (memcmp(buf, slabstat_ids[i], strlen(slabstat_ids[i])) == 0) {
637 sscanf(buf, "%*s%d", ((int *)s) + i);
638 cnt--;
639 break;
640 }
641 }
642 if (cnt <= 0)
643 break;
644 }
645
a221d621
BL		 646 slabstat_valid = 1;
647
aba5acdf
SH		 648 fclose(fp);
649 return 0;
650}
651
2e7e805d 652static unsigned long long cookie_sk_get(const uint32_t *cookie)
f1b39e1b 653{
2e7e805d 654 return (((unsigned long long)cookie[1] << 31) << 1) | cookie[0];
f1b39e1b
VK		 655}
656
f89d46ad
PS		 657static const char *sctp_sstate_name[] = {
658 [SCTP_STATE_CLOSED] = "CLOSED",
659 [SCTP_STATE_COOKIE_WAIT] = "COOKIE_WAIT",
660 [SCTP_STATE_COOKIE_ECHOED] = "COOKIE_ECHOED",
661 [SCTP_STATE_ESTABLISHED] = "ESTAB",
662 [SCTP_STATE_SHUTDOWN_PENDING] = "SHUTDOWN_PENDING",
663 [SCTP_STATE_SHUTDOWN_SENT] = "SHUTDOWN_SENT",
664 [SCTP_STATE_SHUTDOWN_RECEIVED] = "SHUTDOWN_RECEIVED",
665 [SCTP_STATE_SHUTDOWN_ACK_SENT] = "ACK_SENT",
666};
667
acd1e437 668struct sockstat {
ec4d0d8a
VK		 669 struct sockstat *next;
670 unsigned int type;
89f634f9 671 uint16_t prot;
41fe6c34 672 uint16_t raw_prot;
8250bc9f
VK		 673 inet_prefix local;
674 inet_prefix remote;
675 int lport;
676 int rport;
677 int state;
678 int rq, wq;
acd1e437
SH		 679 unsigned int ino;
680 unsigned int uid;
8250bc9f
VK		 681 int refcnt;
682 unsigned int iface;
683 unsigned long long sk;
99bb68ff
VK		 684 char *name;
685 char *peer_name;
ec75249b 686 __u32 mark;
055840f2
VK		 687};
688
acd1e437 689struct dctcpstat {
055840f2
VK		 690 unsigned int ce_state;
691 unsigned int alpha;
692 unsigned int ab_ecn;
693 unsigned int ab_tot;
694 bool enabled;
695};
696
acd1e437 697struct tcpstat {
055840f2 698 struct sockstat ss;
4cbf5224
PS		 699 unsigned int timer;
700 unsigned int timeout;
8250bc9f 701 int probes;
d2055ea5 702 char cong_alg[16];
8250bc9f 703 double rto, ato, rtt, rttvar;
d1f338b3 704 int qack, ssthresh, backoff;
8250bc9f
VK		 705 double send_bps;
706 int snd_wscale;
707 int rcv_wscale;
708 int mss;
38e6dbc4
ED		 709 int rcv_mss;
710 int advmss;
d1f338b3 711 unsigned int cwnd;
8250bc9f
VK		 712 unsigned int lastsnd;
713 unsigned int lastrcv;
714 unsigned int lastack;
715 double pacing_rate;
716 double pacing_rate_max;
2f579872 717 double delivery_rate;
1a4dda71
ED		 718 unsigned long long bytes_acked;
719 unsigned long long bytes_received;
ecb435ea
CG		 720 unsigned int segs_out;
721 unsigned int segs_in;
414aeec9
MKL		 722 unsigned int data_segs_out;
723 unsigned int data_segs_in;
8250bc9f
VK		 724 unsigned int unacked;
725 unsigned int retrans;
726 unsigned int retrans_total;
727 unsigned int lost;
728 unsigned int sacked;
729 unsigned int fackets;
730 unsigned int reordering;
9e99e495 731 unsigned int not_sent;
8250bc9f 732 double rcv_rtt;
9e99e495 733 double min_rtt;
8250bc9f 734 int rcv_space;
b6c7fc61
YC		 735 unsigned long long busy_time;
736 unsigned long long rwnd_limited;
737 unsigned long long sndbuf_limited;
8250bc9f
VK		 738 bool has_ts_opt;
739 bool has_sack_opt;
740 bool has_ecn_opt;
741 bool has_ecnseen_opt;
742 bool has_fastopen_opt;
743 bool has_wscale_opt;
2f579872 744 bool app_limited;
8250bc9f 745 struct dctcpstat *dctcp;
2f0f9aef 746 struct tcp_bbr_info *bbr_info;
aba5acdf
SH		 747};
748
f89d46ad
PS		 749/* SCTP assocs share the same inode number with their parent endpoint. So if we
750 * have seen the inode number before, it must be an assoc instead of the next
751 * endpoint. */
752static bool is_sctp_assoc(struct sockstat *s, const char *sock_name)
753{
754 if (strcmp(sock_name, "sctp"))
755 return false;
756 if (!sctp_ino || sctp_ino != s->ino)
757 return false;
758 return true;
759}
760
be7e4d20
PS		 761static const char *unix_netid_name(int type)
762{
763 switch (type) {
764 case SOCK_STREAM:
765 return "u_str";
766 case SOCK_SEQPACKET:
767 return "u_seq";
768 case SOCK_DGRAM:
769 default:
770 return "u_dgr";
771 }
772}
773
774static const char *proto_name(int protocol)
2d791bc8 775{
be7e4d20
PS		 776 switch (protocol) {
777 case 0:
778 return "raw";
779 case IPPROTO_UDP:
780 return "udp";
781 case IPPROTO_TCP:
782 return "tcp";
783 case IPPROTO_SCTP:
784 return "sctp";
785 case IPPROTO_DCCP:
786 return "dccp";
572e8936
PS		 787 case IPPROTO_ICMPV6:
788 return "icmp6";
be7e4d20
PS		 789 }
790
791 return "???";
792}
793
794static void sock_state_print(struct sockstat *s)
795{
796 const char *sock_name;
1882c0db
PS		 797 static const char * const sstate_name[] = {
798 "UNKNOWN",
799 [SS_ESTABLISHED] = "ESTAB",
800 [SS_SYN_SENT] = "SYN-SENT",
801 [SS_SYN_RECV] = "SYN-RECV",
802 [SS_FIN_WAIT1] = "FIN-WAIT-1",
803 [SS_FIN_WAIT2] = "FIN-WAIT-2",
804 [SS_TIME_WAIT] = "TIME-WAIT",
805 [SS_CLOSE] = "UNCONN",
806 [SS_CLOSE_WAIT] = "CLOSE-WAIT",
807 [SS_LAST_ACK] = "LAST-ACK",
808 [SS_LISTEN] = "LISTEN",
809 [SS_CLOSING] = "CLOSING",
810 };
be7e4d20
PS		 811
812 switch (s->local.family) {
813 case AF_UNIX:
814 sock_name = unix_netid_name(s->type);
815 break;
816 case AF_INET:
817 case AF_INET6:
818 sock_name = proto_name(s->type);
819 break;
820 case AF_PACKET:
821 sock_name = s->type == SOCK_RAW ? "p_raw" : "p_dgr";
822 break;
823 case AF_NETLINK:
824 sock_name = "nl";
825 break;
826 default:
827 sock_name = "unknown";
828 }
829
2d791bc8 830 if (netid_width)
f89d46ad
PS		 831 printf("%-*s ", netid_width,
832 is_sctp_assoc(s, sock_name) ? "" : sock_name);
833 if (state_width) {
834 if (is_sctp_assoc(s, sock_name))
835 printf("`- %-*s ", state_width - 3,
836 sctp_sstate_name[s->state]);
837 else
838 printf("%-*s ", state_width, sstate_name[s->state]);
839 }
2d791bc8
VK		 840
841 printf("%-6d %-6d ", s->rq, s->wq);
842}
843
f1b39e1b
VK		 844static void sock_details_print(struct sockstat *s)
845{
846 if (s->uid)
847 printf(" uid:%u", s->uid);
848
849 printf(" ino:%u", s->ino);
850 printf(" sk:%llx", s->sk);
ec75249b
LC		 851
852 if (s->mark)
853 printf(" fwmark:0x%x", s->mark);
f1b39e1b
VK		 854}
855
b217df10
VK		 856static void sock_addr_print_width(int addr_len, const char *addr, char *delim,
857 int port_len, const char *port, const char *ifname)
858{
859 if (ifname) {
860 printf("%*s%%%s%s%-*s ", addr_len, addr, ifname, delim,
861 port_len, port);
acd1e437 862 } else {
b217df10
VK		 863 printf("%*s%s%-*s ", addr_len, addr, delim, port_len, port);
864 }
865}
866
867static void sock_addr_print(const char *addr, char *delim, const char *port,
868 const char *ifname)
869{
870 sock_addr_print_width(addr_width, addr, delim, serv_width, port, ifname);
871}
872
4cbf5224 873static const char *print_ms_timer(unsigned int timeout)
aba5acdf
SH		 874{
875 static char buf[64];
876 int secs, msecs, minutes;
acd1e437 877
aba5acdf
SH		 878 secs = timeout/1000;
879 minutes = secs/60;
880 secs = secs%60;
881 msecs = timeout%1000;
882 buf[0] = 0;
883 if (minutes) {
884 msecs = 0;
885 snprintf(buf, sizeof(buf)-16, "%dmin", minutes);
886 if (minutes > 9)
887 secs = 0;
888 }
889 if (secs) {
890 if (secs > 9)
891 msecs = 0;
892 sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec");
893 }
894 if (msecs)
895 sprintf(buf+strlen(buf), "%03dms", msecs);
896 return buf;
e7113c61 897}
aba5acdf 898
22588a0e 899struct scache {
aba5acdf
SH		 900 struct scache *next;
901 int port;
902 char *name;
903 const char *proto;
904};
905
906struct scache *rlist;
907
d1f28cf1 908static void init_service_resolver(void)
aba5acdf
SH		 909{
910 char buf[128];
911 FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
596307ea
PS		 912
913 if (!fp)
914 return;
915
916 if (!fgets(buf, sizeof(buf), fp)) {
2bcc3c16 917 pclose(fp);
596307ea
PS		 918 return;
919 }
920 while (fgets(buf, sizeof(buf), fp) != NULL) {
921 unsigned int progn, port;
922 char proto[128], prog[128] = "rpc.";
923 struct scache *c;
924
925 if (sscanf(buf, "%u %*d %s %u %s",
acd1e437 926 &progn, proto, &port, prog+4) != 4)
596307ea
PS		 927 continue;
928
929 if (!(c = malloc(sizeof(*c))))
930 continue;
931
932 c->port = port;
933 c->name = strdup(prog);
934 if (strcmp(proto, TCP_PROTO) == 0)
935 c->proto = TCP_PROTO;
936 else if (strcmp(proto, UDP_PROTO) == 0)
937 c->proto = UDP_PROTO;
f89d46ad
PS		 938 else if (strcmp(proto, SCTP_PROTO) == 0)
939 c->proto = SCTP_PROTO;
596307ea
PS		 940 else
941 c->proto = NULL;
942 c->next = rlist;
943 rlist = c;
aba5acdf 944 }
596307ea 945 pclose(fp);
aba5acdf
SH		 946}
947
ab61159a
SH		 948/* Even do not try default linux ephemeral port ranges:
949 * default /etc/services contains so much of useless crap
950 * wouldbe "allocated" to this area that resolution
951 * is really harmful. I shrug each time when seeing
952 * "socks" or "cfinger" in dumps.
953 */
954static int is_ephemeral(int port)
955{
acd1e437 956 static int min = 0, max;
c29d3792
PS		 957
958 if (!min) {
ab01dbbb 959 FILE *f = ephemeral_ports_open();
acd1e437 960
c29d3792
PS		 961 if (!f || fscanf(f, "%d %d", &min, &max) < 2) {
962 min = 1024;
963 max = 4999;
ab61159a 964 }
c29d3792
PS		 965 if (f)
966 fclose(f);
ab61159a 967 }
c29d3792 968 return port >= min && port <= max;
ab61159a
SH		 969}
970
971
d1f28cf1 972static const char *__resolve_service(int port)
aba5acdf
SH		 973{
974 struct scache *c;
975
976 for (c = rlist; c; c = c->next) {
977 if (c->port == port && c->proto == dg_proto)
978 return c->name;
979 }
980
ab61159a 981 if (!is_ephemeral(port)) {
aba5acdf
SH		 982 static int notfirst;
983 struct servent *se;
acd1e437 984
aba5acdf
SH		 985 if (!notfirst) {
986 setservent(1);
987 notfirst = 1;
ae665a52 988 }
aba5acdf
SH		 989 se = getservbyport(htons(port), dg_proto);
990 if (se)
991 return se->s_name;
992 }
993
994 return NULL;
995}
996
22588a0e
ED		 997#define SCACHE_BUCKETS 1024
998static struct scache *cache_htab[SCACHE_BUCKETS];
aba5acdf 999
d1f28cf1 1000static const char *resolve_service(int port)
aba5acdf
SH		 1001{
1002 static char buf[128];
22588a0e
ED		 1003 struct scache *c;
1004 const char *res;
1005 int hash;
aba5acdf
SH		 1006
1007 if (port == 0) {
1008 buf[0] = '*';
1009 buf[1] = 0;
1010 return buf;
1011 }
1012
22588a0e
ED		 1013 if (!resolve_services)
1014 goto do_numeric;
aba5acdf 1015
22588a0e
ED		 1016 if (dg_proto == RAW_PROTO)
1017 return inet_proto_n2a(port, buf, sizeof(buf));
1018
1019
1020 hash = (port^(((unsigned long)dg_proto)>>2)) % SCACHE_BUCKETS;
1021
1022 for (c = cache_htab[hash]; c; c = c->next) {
1023 if (c->port == port && c->proto == dg_proto)
1024 goto do_cache;
aba5acdf
SH		 1025 }
1026
22588a0e
ED		 1027 c = malloc(sizeof(*c));
1028 if (!c)
1029 goto do_numeric;
1030 res = __resolve_service(port);
1031 c->port = port;
1032 c->name = res ? strdup(res) : NULL;
1033 c->proto = dg_proto;
1034 c->next = cache_htab[hash];
1035 cache_htab[hash] = c;
1036
1037do_cache:
1038 if (c->name)
1039 return c->name;
1040
1041do_numeric:
aba5acdf
SH		 1042 sprintf(buf, "%u", port);
1043 return buf;
1044}
1045
1267c0b9
PS		 1046static void inet_addr_print(const inet_prefix *a, int port,
1047 unsigned int ifindex, bool v6only)
aba5acdf
SH		 1048{
1049 char buf[1024];
1050 const char *ap = buf;
b217df10
VK		 1051 int est_len = addr_width;
1052 const char *ifname = NULL;
aba5acdf
SH		 1053
1054 if (a->family == AF_INET) {
1267c0b9 1055 ap = format_host(AF_INET, 4, a->data);
aba5acdf 1056 } else {
1267c0b9
PS		 1057 if (!v6only &&
1058 !memcmp(a->data, &in6addr_any, sizeof(in6addr_any))) {
aba9c23a
SH		 1059 buf[0] = '*';
1060 buf[1] = 0;
1061 } else {
1062 ap = format_host(a->family, 16, a->data);
1063
1064 /* Numeric IPv6 addresses should be bracketed */
1065 if (strchr(ap, ':')) {
1066 snprintf(buf, sizeof(buf),
1067 "[%s]", ap);
1068 ap = buf;
1069 }
1070
1071 est_len = strlen(ap);
1072 if (est_len <= addr_width)
1073 est_len = addr_width;
1074 else
1075 est_len = addr_width + ((est_len-addr_width+3)/4)*4;
1076 }
aba5acdf 1077 }
b217df10 1078
7c8a3cfb 1079 if (ifindex) {
b217df10
VK		 1080 ifname = ll_index_to_name(ifindex);
1081 est_len -= strlen(ifname) + 1; /* +1 for percent char */
4fcfb6bc
MS		 1082 if (est_len < 0)
1083 est_len = 0;
b217df10 1084 }
7c8a3cfb 1085
b217df10
VK		 1086 sock_addr_print_width(est_len, ap, ":", serv_width, resolve_service(port),
1087 ifname);
aba5acdf
SH		 1088}
1089
acd1e437 1090struct aafilter {
aba5acdf
SH		 1091 inet_prefix addr;
1092 int port;
2d293212 1093 unsigned int iface;
ec75249b
LC		 1094 __u32 mark;
1095 __u32 mask;
aba5acdf
SH		 1096 struct aafilter *next;
1097};
1098
d1f28cf1
SH		 1099static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p,
1100 int plen)
aba5acdf
SH		 1101{
1102 if (!inet_addr_match(a, p, plen))
1103 return 0;
7d105b56 1104
aba5acdf
SH		 1105 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1106 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1107 * sockets. Fair? */
1108 if (p->family == AF_INET && a->family == AF_INET6) {
1109 if (a->data[0] == 0 && a->data[1] == 0 &&
1110 a->data[2] == htonl(0xffff)) {
1111 inet_prefix tmp = *a;
acd1e437 1112
aba5acdf
SH		 1113 tmp.data[0] = a->data[3];
1114 return inet_addr_match(&tmp, p, plen);
1115 }
1116 }
1117 return 1;
1118}
1119
d1f28cf1 1120static int unix_match(const inet_prefix *a, const inet_prefix *p)
aba5acdf 1121{
99bb68ff 1122 char *addr, *pattern;
acd1e437 1123
99bb68ff
VK		 1124 memcpy(&addr, a->data, sizeof(addr));
1125 memcpy(&pattern, p->data, sizeof(pattern));
aba5acdf
SH		 1126 if (pattern == NULL)
1127 return 1;
1128 if (addr == NULL)
1129 addr = "";
1130 return !fnmatch(pattern, addr, 0);
1131}
1132
055840f2 1133static int run_ssfilter(struct ssfilter *f, struct sockstat *s)
aba5acdf
SH		 1134{
1135 switch (f->type) {
1136 case SSF_S_AUTO:
1137 {
aba5acdf 1138 if (s->local.family == AF_UNIX) {
99bb68ff 1139 char *p;
acd1e437 1140
99bb68ff 1141 memcpy(&p, s->local.data, sizeof(p));
aba5acdf 1142 return p == NULL || (p[0] == '@' && strlen(p) == 6 &&
ae665a52 1143 strspn(p+1, "0123456789abcdef") == 5);
aba5acdf
SH		 1144 }
1145 if (s->local.family == AF_PACKET)
bbd303d1 1146 return s->lport == 0 && s->local.data[0] == 0;
aba5acdf
SH		 1147 if (s->local.family == AF_NETLINK)
1148 return s->lport < 0;
1149
c29d3792 1150 return is_ephemeral(s->lport);
aba5acdf
SH		 1151 }
1152 case SSF_DCOND:
1153 {
acd1e437
SH		 1154 struct aafilter *a = (void *)f->pred;
1155
aba5acdf
SH		 1156 if (a->addr.family == AF_UNIX)
1157 return unix_match(&s->remote, &a->addr);
1158 if (a->port != -1 && a->port != s->rport)
1159 return 0;
1160 if (a->addr.bitlen) {
1161 do {
1162 if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen))
1163 return 1;
1164 } while ((a = a->next) != NULL);
1165 return 0;
1166 }
1167 return 1;
1168 }
1169 case SSF_SCOND:
1170 {
acd1e437
SH		 1171 struct aafilter *a = (void *)f->pred;
1172
aba5acdf
SH		 1173 if (a->addr.family == AF_UNIX)
1174 return unix_match(&s->local, &a->addr);
1175 if (a->port != -1 && a->port != s->lport)
1176 return 0;
1177 if (a->addr.bitlen) {
1178 do {
1179 if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen))
1180 return 1;
ae665a52 1181 } while ((a = a->next) != NULL);
aba5acdf
SH		 1182 return 0;
1183 }
1184 return 1;
1185 }
1186 case SSF_D_GE:
1187 {
acd1e437
SH		 1188 struct aafilter *a = (void *)f->pred;
1189
aba5acdf
SH		 1190 return s->rport >= a->port;
1191 }
1192 case SSF_D_LE:
1193 {
acd1e437
SH		 1194 struct aafilter *a = (void *)f->pred;
1195
aba5acdf
SH		 1196 return s->rport <= a->port;
1197 }
1198 case SSF_S_GE:
1199 {
acd1e437
SH		 1200 struct aafilter *a = (void *)f->pred;
1201
aba5acdf
SH		 1202 return s->lport >= a->port;
1203 }
1204 case SSF_S_LE:
1205 {
acd1e437
SH		 1206 struct aafilter *a = (void *)f->pred;
1207
aba5acdf
SH		 1208 return s->lport <= a->port;
1209 }
2d293212
DA		 1210 case SSF_DEVCOND:
1211 {
1212 struct aafilter *a = (void *)f->pred;
aba5acdf 1213
2d293212 1214 return s->iface == a->iface;
ec75249b
LC		 1215 }
1216 case SSF_MARKMASK:
1217 {
1218 struct aafilter *a = (void *)f->pred;
1219
1220 return (s->mark & a->mask) == a->mark;
2d293212 1221 }
aba5acdf
SH		 1222 /* Yup. It is recursion. Sorry. */
1223 case SSF_AND:
1224 return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s);
1225 case SSF_OR:
1226 return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s);
1227 case SSF_NOT:
1228 return !run_ssfilter(f->pred, s);
1229 default:
1230 abort();
1231 }
1232}
1233
ae665a52 1234/* Relocate external jumps by reloc. */
b4b0b7d5 1235static void ssfilter_patch(char *a, int len, int reloc)
aba5acdf
SH		 1236{
1237 while (len > 0) {
acd1e437
SH		 1238 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)a;
1239
aba5acdf
SH		 1240 if (op->no == len+4)
1241 op->no += reloc;
1242 len -= op->yes;
1243 a += op->yes;
1244 }
1245 if (len < 0)
1246 abort();
1247}
1248
b4b0b7d5 1249static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
aba5acdf
SH		 1250{
1251 switch (f->type) {
1252 case SSF_S_AUTO:
1253 {
acd1e437
SH		 1254 if (!(*bytecode = malloc(4))) abort();
1255 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
df39de8d 1256 return 4;
aba5acdf
SH		 1257 }
1258 case SSF_DCOND:
1259 case SSF_SCOND:
1260 {
acd1e437 1261 struct aafilter *a = (void *)f->pred;
aba5acdf
SH		 1262 struct aafilter *b;
1263 char *ptr;
351efcde 1264 int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND);
aba5acdf
SH		 1265 int len = 0;
1266
acd1e437 1267 for (b = a; b; b = b->next) {
351efcde 1268 len += 4 + sizeof(struct inet_diag_hostcond);
aba5acdf
SH		 1269 if (a->addr.family == AF_INET6)
1270 len += 16;
1271 else
1272 len += 4;
1273 if (b->next)
1274 len += 4;
1275 }
1276 if (!(ptr = malloc(len))) abort();
1277 *bytecode = ptr;
acd1e437 1278 for (b = a; b; b = b->next) {
351efcde 1279 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr;
aba5acdf 1280 int alen = (a->addr.family == AF_INET6 ? 16 : 4);
351efcde 1281 int oplen = alen + 4 + sizeof(struct inet_diag_hostcond);
acd1e437 1282 struct inet_diag_hostcond *cond = (struct inet_diag_hostcond *)(ptr+4);
aba5acdf 1283
351efcde 1284 *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 };
aba5acdf
SH		 1285 cond->family = a->addr.family;
1286 cond->port = a->port;
1287 cond->prefix_len = a->addr.bitlen;
1288 memcpy(cond->addr, a->addr.data, alen);
1289 ptr += oplen;
1290 if (b->next) {
351efcde
SH		 1291 op = (struct inet_diag_bc_op *)ptr;
1292 *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)};
aba5acdf
SH		 1293 ptr += 4;
1294 }
1295 }
1296 return ptr - *bytecode;
1297 }
1298 case SSF_D_GE:
1299 {
acd1e437
SH		 1300 struct aafilter *x = (void *)f->pred;
1301
1302 if (!(*bytecode = malloc(8))) abort();
1303 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 };
1304 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1305 return 8;
1306 }
1307 case SSF_D_LE:
1308 {
acd1e437
SH		 1309 struct aafilter *x = (void *)f->pred;
1310
1311 if (!(*bytecode = malloc(8))) abort();
1312 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 };
1313 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1314 return 8;
1315 }
1316 case SSF_S_GE:
1317 {
acd1e437
SH		 1318 struct aafilter *x = (void *)f->pred;
1319
1320 if (!(*bytecode = malloc(8))) abort();
1321 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 };
1322 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1323 return 8;
1324 }
1325 case SSF_S_LE:
1326 {
acd1e437
SH		 1327 struct aafilter *x = (void *)f->pred;
1328
1329 if (!(*bytecode = malloc(8))) abort();
1330 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 };
1331 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1332 return 8;
1333 }
1334
1335 case SSF_AND:
1336 {
376fb868 1337 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1338 int l1, l2;
acd1e437 1339
aba5acdf
SH		 1340 l1 = ssfilter_bytecompile(f->pred, &a1);
1341 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1342 if (!l1 || !l2) {
1343 free(a1);
1344 free(a2);
1345 return 0;
1346 }
aba5acdf
SH		 1347 if (!(a = malloc(l1+l2))) abort();
1348 memcpy(a, a1, l1);
1349 memcpy(a+l1, a2, l2);
1350 free(a1); free(a2);
1351 ssfilter_patch(a, l1, l2);
1352 *bytecode = a;
1353 return l1+l2;
1354 }
1355 case SSF_OR:
1356 {
376fb868 1357 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1358 int l1, l2;
acd1e437 1359
aba5acdf
SH		 1360 l1 = ssfilter_bytecompile(f->pred, &a1);
1361 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1362 if (!l1 || !l2) {
1363 free(a1);
1364 free(a2);
1365 return 0;
1366 }
aba5acdf
SH		 1367 if (!(a = malloc(l1+l2+4))) abort();
1368 memcpy(a, a1, l1);
1369 memcpy(a+l1+4, a2, l2);
1370 free(a1); free(a2);
acd1e437 1371 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 };
aba5acdf
SH		 1372 *bytecode = a;
1373 return l1+l2+4;
1374 }
1375 case SSF_NOT:
1376 {
376fb868 1377 char *a1 = NULL, *a;
2a4fa1c3 1378 int l1;
acd1e437 1379
aba5acdf 1380 l1 = ssfilter_bytecompile(f->pred, &a1);
376fb868
DA		 1381 if (!l1) {
1382 free(a1);
1383 return 0;
1384 }
aba5acdf
SH		 1385 if (!(a = malloc(l1+4))) abort();
1386 memcpy(a, a1, l1);
1387 free(a1);
acd1e437 1388 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 };
aba5acdf
SH		 1389 *bytecode = a;
1390 return l1+4;
2d293212
DA		 1391 }
1392 case SSF_DEVCOND:
1393 {
1394 /* bytecompile for SSF_DEVCOND not supported yet */
1395 return 0;
ec75249b
LC		 1396 }
1397 case SSF_MARKMASK:
1398 {
1399 struct aafilter *a = (void *)f->pred;
1400 struct instr {
1401 struct inet_diag_bc_op op;
1402 struct inet_diag_markcond cond;
1403 };
1404 int inslen = sizeof(struct instr);
1405
1406 if (!(*bytecode = malloc(inslen))) abort();
1407 ((struct instr *)*bytecode)[0] = (struct instr) {
1408 { INET_DIAG_BC_MARK_COND, inslen, inslen + 4 },
1409 { a->mark, a->mask},
1410 };
1411
1412 return inslen;
aba5acdf
SH		 1413 }
1414 default:
1415 abort();
1416 }
1417}
1418
b4b0b7d5 1419static int remember_he(struct aafilter *a, struct hostent *he)
aba5acdf 1420{
ae665a52 1421 char **ptr = he->h_addr_list;
aba5acdf
SH		 1422 int cnt = 0;
1423 int len;
1424
1425 if (he->h_addrtype == AF_INET)
1426 len = 4;
1427 else if (he->h_addrtype == AF_INET6)
1428 len = 16;
1429 else
1430 return 0;
1431
1432 while (*ptr) {
1433 struct aafilter *b = a;
acd1e437 1434
aba5acdf
SH		 1435 if (a->addr.bitlen) {
1436 if ((b = malloc(sizeof(*b))) == NULL)
1437 return cnt;
1438 *b = *a;
aba5acdf
SH		 1439 a->next = b;
1440 }
1441 memcpy(b->addr.data, *ptr, len);
1442 b->addr.bytelen = len;
1443 b->addr.bitlen = len*8;
1444 b->addr.family = he->h_addrtype;
1445 ptr++;
1446 cnt++;
1447 }
1448 return cnt;
1449}
1450
b4b0b7d5 1451static int get_dns_host(struct aafilter *a, const char *addr, int fam)
aba5acdf
SH		 1452{
1453 static int notfirst;
1454 int cnt = 0;
1455 struct hostent *he;
1456
1457 a->addr.bitlen = 0;
1458 if (!notfirst) {
1459 sethostent(1);
1460 notfirst = 1;
1461 }
1462 he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam);
1463 if (he)
1464 cnt = remember_he(a, he);
1465 if (fam == AF_UNSPEC) {
1466 he = gethostbyname2(addr, AF_INET6);
1467 if (he)
1468 cnt += remember_he(a, he);
1469 }
1470 return !cnt;
1471}
1472
acd1e437 1473static int xll_initted;
aba5acdf 1474
b4b0b7d5 1475static void xll_init(void)
aba5acdf
SH		 1476{
1477 struct rtnl_handle rth;
acd1e437 1478
d2468da0
SH		 1479 if (rtnl_open(&rth, 0) < 0)
1480 exit(1);
1481
aba5acdf
SH		 1482 ll_init_map(&rth);
1483 rtnl_close(&rth);
1484 xll_initted = 1;
1485}
1486
b4b0b7d5 1487static const char *xll_index_to_name(int index)
aba5acdf
SH		 1488{
1489 if (!xll_initted)
1490 xll_init();
1491 return ll_index_to_name(index);
1492}
1493
b4b0b7d5 1494static int xll_name_to_index(const char *dev)
aba5acdf
SH		 1495{
1496 if (!xll_initted)
1497 xll_init();
1498 return ll_name_to_index(dev);
1499}
1500
2d293212
DA		 1501void *parse_devcond(char *name)
1502{
1503 struct aafilter a = { .iface = 0 };
1504 struct aafilter *res;
1505
1506 a.iface = xll_name_to_index(name);
1507 if (a.iface == 0) {
1508 char *end;
930d3f28 1509 unsigned long n;
2d293212 1510
930d3f28
DA		 1511 n = strtoul(name, &end, 0);
1512 if (!end || end == name || *end || n > UINT_MAX)
2d293212 1513 return NULL;
930d3f28
DA		 1514
1515 a.iface = n;
2d293212
DA		 1516 }
1517
1518 res = malloc(sizeof(*res));
1519 *res = a;
1520
1521 return res;
1522}
1523
7871f7db 1524void *parse_hostcond(char *addr, bool is_port)
aba5acdf
SH		 1525{
1526 char *port = NULL;
1527a17e 1527 struct aafilter a = { .port = -1 };
aba5acdf 1528 struct aafilter *res;
1527a17e 1529 int fam = preferred_family;
9db7bf15 1530 struct filter *f = &current_filter;
aba5acdf 1531
1527a17e 1532 if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) {
aba5acdf 1533 char *p;
acd1e437 1534
aba5acdf
SH		 1535 a.addr.family = AF_UNIX;
1536 if (strncmp(addr, "unix:", 5) == 0)
acd1e437 1537 addr += 5;
aba5acdf
SH		 1538 p = strdup(addr);
1539 a.addr.bitlen = 8*strlen(p);
99bb68ff 1540 memcpy(a.addr.data, &p, sizeof(p));
9db7bf15 1541 fam = AF_UNIX;
aba5acdf
SH		 1542 goto out;
1543 }
1544
1527a17e 1545 if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) {
aba5acdf
SH		 1546 a.addr.family = AF_PACKET;
1547 a.addr.bitlen = 0;
1548 if (strncmp(addr, "link:", 5) == 0)
acd1e437 1549 addr += 5;
aba5acdf
SH		 1550 port = strchr(addr, ':');
1551 if (port) {
1552 *port = 0;
1553 if (port[1] && strcmp(port+1, "*")) {
1554 if (get_integer(&a.port, port+1, 0)) {
1555 if ((a.port = xll_name_to_index(port+1)) <= 0)
1556 return NULL;
1557 }
1558 }
1559 }
1560 if (addr[0] && strcmp(addr, "*")) {
1561 unsigned short tmp;
acd1e437 1562
aba5acdf
SH		 1563 a.addr.bitlen = 32;
1564 if (ll_proto_a2n(&tmp, addr))
1565 return NULL;
1566 a.addr.data[0] = ntohs(tmp);
1567 }
9db7bf15 1568 fam = AF_PACKET;
aba5acdf
SH		 1569 goto out;
1570 }
1571
1527a17e 1572 if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) {
aba5acdf
SH		 1573 a.addr.family = AF_NETLINK;
1574 a.addr.bitlen = 0;
1575 if (strncmp(addr, "netlink:", 8) == 0)
acd1e437 1576 addr += 8;
aba5acdf
SH		 1577 port = strchr(addr, ':');
1578 if (port) {
1579 *port = 0;
1580 if (port[1] && strcmp(port+1, "*")) {
1581 if (get_integer(&a.port, port+1, 0)) {
1582 if (strcmp(port+1, "kernel") == 0)
1583 a.port = 0;
1584 else
1585 return NULL;
1586 }
1587 }
1588 }
1589 if (addr[0] && strcmp(addr, "*")) {
1590 a.addr.bitlen = 32;
b00daf6a 1591 if (nl_proto_a2n(&a.addr.data[0], addr) == -1)
1592 return NULL;
aba5acdf 1593 }
9db7bf15 1594 fam = AF_NETLINK;
aba5acdf
SH		 1595 goto out;
1596 }
1597
1527a17e 1598 if (fam == AF_INET || !strncmp(addr, "inet:", 5)) {
aba5acdf 1599 fam = AF_INET;
1527a17e
VK		 1600 if (!strncmp(addr, "inet:", 5))
1601 addr += 5;
1602 } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) {
aba5acdf 1603 fam = AF_INET6;
1527a17e
VK		 1604 if (!strncmp(addr, "inet6:", 6))
1605 addr += 6;
aba5acdf
SH		 1606 }
1607
1608 /* URL-like literal [] */
1609 if (addr[0] == '[') {
1610 addr++;
1611 if ((port = strchr(addr, ']')) == NULL)
1612 return NULL;
1613 *port++ = 0;
1614 } else if (addr[0] == '*') {
1615 port = addr+1;
1616 } else {
1617 port = strrchr(strchr(addr, '/') ? : addr, ':');
1618 }
7871f7db
VK		 1619
1620 if (is_port)
1621 port = addr;
1622
aba5acdf 1623 if (port && *port) {
7871f7db
VK		 1624 if (*port == ':')
1625 *port++ = 0;
1626
aba5acdf
SH		 1627 if (*port && *port != '*') {
1628 if (get_integer(&a.port, port, 0)) {
1629 struct servent *se1 = NULL;
1630 struct servent *se2 = NULL;
acd1e437 1631
aba5acdf
SH		 1632 if (current_filter.dbs&(1<<UDP_DB))
1633 se1 = getservbyname(port, UDP_PROTO);
1634 if (current_filter.dbs&(1<<TCP_DB))
1635 se2 = getservbyname(port, TCP_PROTO);
1636 if (se1 && se2 && se1->s_port != se2->s_port) {
1637 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1638 return NULL;
1639 }
1640 if (!se1)
1641 se1 = se2;
1642 if (se1) {
1643 a.port = ntohs(se1->s_port);
1644 } else {
1645 struct scache *s;
acd1e437 1646
aba5acdf
SH		 1647 for (s = rlist; s; s = s->next) {
1648 if ((s->proto == UDP_PROTO &&
1649 (current_filter.dbs&(1<<UDP_DB))) ||
1650 (s->proto == TCP_PROTO &&
1651 (current_filter.dbs&(1<<TCP_DB)))) {
1652 if (s->name && strcmp(s->name, port) == 0) {
1653 if (a.port > 0 && a.port != s->port) {
1654 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1655 return NULL;
1656 }
1657 a.port = s->port;
1658 }
1659 }
1660 }
1661 if (a.port <= 0) {
1662 fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port);
1663 return NULL;
1664 }
1665 }
1666 }
1667 }
1668 }
44448a90 1669 if (!is_port && *addr && *addr != '*') {
aba5acdf
SH		 1670 if (get_prefix_1(&a.addr, addr, fam)) {
1671 if (get_dns_host(&a, addr, fam)) {
1672 fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr);
1673 return NULL;
1674 }
1675 }
1676 }
1677
9db7bf15 1678out:
1527a17e 1679 if (fam != AF_UNSPEC) {
e56a959e 1680 int states = f->states;
1527a17e 1681 f->families = 0;
9db7bf15 1682 filter_af_set(f, fam);
e56a959e 1683 filter_states_set(f, states);
1527a17e 1684 }
9db7bf15 1685
aba5acdf
SH		 1686 res = malloc(sizeof(*res));
1687 if (res)
1688 memcpy(res, &a, sizeof(a));
1689 return res;
1690}
1691
ec75249b
LC		 1692void *parse_markmask(const char *markmask)
1693{
1694 struct aafilter a, *res;
1695
1696 if (strchr(markmask, '/')) {
1697 if (sscanf(markmask, "%i/%i", &a.mark, &a.mask) != 2)
1698 return NULL;
1699 } else {
1700 a.mask = 0xffffffff;
1701 if (sscanf(markmask, "%i", &a.mark) != 1)
1702 return NULL;
1703 }
1704
1705 res = malloc(sizeof(*res));
1706 if (res)
1707 memcpy(res, &a, sizeof(a));
1708 return res;
1709}
1710
5f27ac1d 1711static void proc_ctx_print(struct sockstat *s)
8250bc9f 1712{
5f27ac1d 1713 char *buf;
8250bc9f 1714
8250bc9f
VK		 1715 if (show_proc_ctx || show_sock_ctx) {
1716 if (find_entry(s->ino, &buf,
1717 (show_proc_ctx & show_sock_ctx) ?
1718 PROC_SOCK_CTX : PROC_CTX) > 0) {
1719 printf(" users:(%s)", buf);
1720 free(buf);
1721 }
1722 } else if (show_users) {
1723 if (find_entry(s->ino, &buf, USERS) > 0) {
1724 printf(" users:(%s)", buf);
1725 free(buf);
1726 }
1727 }
1728}
1729
1267c0b9 1730static void inet_stats_print(struct sockstat *s, bool v6only)
5f27ac1d
PS		 1731{
1732 sock_state_print(s);
1733
1267c0b9
PS		 1734 inet_addr_print(&s->local, s->lport, s->iface, v6only);
1735 inet_addr_print(&s->remote, s->rport, 0, v6only);
5f27ac1d
PS		 1736
1737 proc_ctx_print(s);
1738}
1739
055840f2 1740static int proc_parse_inet_addr(char *loc, char *rem, int family, struct
acd1e437 1741 sockstat * s)
8250bc9f
VK		 1742{
1743 s->local.family = s->remote.family = family;
1744 if (family == AF_INET) {
acd1e437
SH		 1745 sscanf(loc, "%x:%x", s->local.data, (unsigned *)&s->lport);
1746 sscanf(rem, "%x:%x", s->remote.data, (unsigned *)&s->rport);
8250bc9f
VK		 1747 s->local.bytelen = s->remote.bytelen = 4;
1748 return 0;
1749 } else {
1750 sscanf(loc, "%08x%08x%08x%08x:%x",
1751 s->local.data,
1752 s->local.data + 1,
1753 s->local.data + 2,
1754 s->local.data + 3,
1755 &s->lport);
1756 sscanf(rem, "%08x%08x%08x%08x:%x",
1757 s->remote.data,
1758 s->remote.data + 1,
1759 s->remote.data + 2,
1760 s->remote.data + 3,
1761 &s->rport);
1762 s->local.bytelen = s->remote.bytelen = 16;
1763 return 0;
1764 }
1765 return -1;
1766}
1767
1768static int proc_inet_split_line(char *line, char **loc, char **rem, char **data)
aba5acdf 1769{
aba5acdf 1770 char *p;
ae665a52 1771
aba5acdf
SH		 1772 if ((p = strchr(line, ':')) == NULL)
1773 return -1;
ae665a52 1774
8250bc9f
VK		 1775 *loc = p+2;
1776 if ((p = strchr(*loc, ':')) == NULL)
aba5acdf 1777 return -1;
ae665a52 1778
8250bc9f
VK		 1779 p[5] = 0;
1780 *rem = p+6;
1781 if ((p = strchr(*rem, ':')) == NULL)
aba5acdf 1782 return -1;
8250bc9f 1783
aba5acdf 1784 p[5] = 0;
8250bc9f
VK		 1785 *data = p+6;
1786 return 0;
1787}
ae665a52 1788
8250bc9f
VK		 1789static char *sprint_bw(char *buf, double bw)
1790{
1791 if (bw > 1000000.)
acd1e437 1792 sprintf(buf, "%.1fM", bw / 1000000.);
8250bc9f 1793 else if (bw > 1000.)
acd1e437 1794 sprintf(buf, "%.1fK", bw / 1000.);
8250bc9f
VK		 1795 else
1796 sprintf(buf, "%g", bw);
aba5acdf 1797
8250bc9f
VK		 1798 return buf;
1799}
ae665a52 1800
f89d46ad
PS		 1801static void sctp_stats_print(struct sctp_info *s)
1802{
1803 if (s->sctpi_tag)
1804 printf(" tag:%x", s->sctpi_tag);
1805 if (s->sctpi_state)
1806 printf(" state:%s", sctp_sstate_name[s->sctpi_state]);
1807 if (s->sctpi_rwnd)
1808 printf(" rwnd:%d", s->sctpi_rwnd);
1809 if (s->sctpi_unackdata)
1810 printf(" unackdata:%d", s->sctpi_unackdata);
1811 if (s->sctpi_penddata)
1812 printf(" penddata:%d", s->sctpi_penddata);
1813 if (s->sctpi_instrms)
1814 printf(" instrms:%d", s->sctpi_instrms);
1815 if (s->sctpi_outstrms)
1816 printf(" outstrms:%d", s->sctpi_outstrms);
1817 if (s->sctpi_inqueue)
1818 printf(" inqueue:%d", s->sctpi_inqueue);
1819 if (s->sctpi_outqueue)
1820 printf(" outqueue:%d", s->sctpi_outqueue);
1821 if (s->sctpi_overall_error)
1822 printf(" overerr:%d", s->sctpi_overall_error);
1823 if (s->sctpi_max_burst)
1824 printf(" maxburst:%d", s->sctpi_max_burst);
1825 if (s->sctpi_maxseg)
1826 printf(" maxseg:%d", s->sctpi_maxseg);
1827 if (s->sctpi_peer_rwnd)
1828 printf(" prwnd:%d", s->sctpi_peer_rwnd);
1829 if (s->sctpi_peer_tag)
1830 printf(" ptag:%x", s->sctpi_peer_tag);
1831 if (s->sctpi_peer_capable)
1832 printf(" pcapable:%d", s->sctpi_peer_capable);
1833 if (s->sctpi_peer_sack)
1834 printf(" psack:%d", s->sctpi_peer_sack);
1835 if (s->sctpi_s_autoclose)
1836 printf(" autoclose:%d", s->sctpi_s_autoclose);
1837 if (s->sctpi_s_adaptation_ind)
1838 printf(" adapind:%d", s->sctpi_s_adaptation_ind);
1839 if (s->sctpi_s_pd_point)
1840 printf(" pdpoint:%d", s->sctpi_s_pd_point);
1841 if (s->sctpi_s_nodelay)
1842 printf(" nodealy:%d", s->sctpi_s_nodelay);
1843 if (s->sctpi_s_disable_fragments)
1844 printf(" nofrag:%d", s->sctpi_s_disable_fragments);
1845 if (s->sctpi_s_v4mapped)
1846 printf(" v4mapped:%d", s->sctpi_s_v4mapped);
1847 if (s->sctpi_s_frag_interleave)
1848 printf(" fraginl:%d", s->sctpi_s_frag_interleave);
1849}
1850
8250bc9f
VK		 1851static void tcp_stats_print(struct tcpstat *s)
1852{
1853 char b1[64];
1854
1855 if (s->has_ts_opt)
1856 printf(" ts");
1857 if (s->has_sack_opt)
1858 printf(" sack");
1859 if (s->has_ecn_opt)
1860 printf(" ecn");
1861 if (s->has_ecnseen_opt)
1862 printf(" ecnseen");
1863 if (s->has_fastopen_opt)
1864 printf(" fastopen");
d2055ea5 1865 if (s->cong_alg[0])
8250bc9f
VK		 1866 printf(" %s", s->cong_alg);
1867 if (s->has_wscale_opt)
1868 printf(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale);
1869 if (s->rto)
1870 printf(" rto:%g", s->rto);
1871 if (s->backoff)
1872 printf(" backoff:%u", s->backoff);
1873 if (s->rtt)
1874 printf(" rtt:%g/%g", s->rtt, s->rttvar);
1875 if (s->ato)
1876 printf(" ato:%g", s->ato);
1877
1878 if (s->qack)
1879 printf(" qack:%d", s->qack);
1880 if (s->qack & 1)
1881 printf(" bidir");
1882
1883 if (s->mss)
1884 printf(" mss:%d", s->mss);
38e6dbc4
ED		 1885 if (s->rcv_mss)
1886 printf(" rcvmss:%d", s->rcv_mss);
1887 if (s->advmss)
1888 printf(" advmss:%d", s->advmss);
3bf5445c 1889 if (s->cwnd)
d1f338b3 1890 printf(" cwnd:%u", s->cwnd);
8250bc9f
VK		 1891 if (s->ssthresh)
1892 printf(" ssthresh:%d", s->ssthresh);
1893
1a4dda71
ED		 1894 if (s->bytes_acked)
1895 printf(" bytes_acked:%llu", s->bytes_acked);
1896 if (s->bytes_received)
1897 printf(" bytes_received:%llu", s->bytes_received);
ecb435ea
CG		 1898 if (s->segs_out)
1899 printf(" segs_out:%u", s->segs_out);
1900 if (s->segs_in)
1901 printf(" segs_in:%u", s->segs_in);
414aeec9
MKL		 1902 if (s->data_segs_out)
1903 printf(" data_segs_out:%u", s->data_segs_out);
1904 if (s->data_segs_in)
1905 printf(" data_segs_in:%u", s->data_segs_in);
1a4dda71 1906
8250bc9f
VK		 1907 if (s->dctcp && s->dctcp->enabled) {
1908 struct dctcpstat *dctcp = s->dctcp;
1909
3bf5445c 1910 printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
8250bc9f
VK		 1911 dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn,
1912 dctcp->ab_tot);
1913 } else if (s->dctcp) {
3bf5445c 1914 printf(" dctcp:fallback_mode");
8250bc9f
VK		 1915 }
1916
2f0f9aef
NC		 1917 if (s->bbr_info) {
1918 __u64 bw;
1919
1920 bw = s->bbr_info->bbr_bw_hi;
1921 bw <<= 32;
1922 bw |= s->bbr_info->bbr_bw_lo;
1923
1924 printf(" bbr:(bw:%sbps,mrtt:%g",
1925 sprint_bw(b1, bw * 8.0),
1926 (double)s->bbr_info->bbr_min_rtt / 1000.0);
1927 if (s->bbr_info->bbr_pacing_gain)
1928 printf(",pacing_gain:%g",
1929 (double)s->bbr_info->bbr_pacing_gain / 256.0);
1930 if (s->bbr_info->bbr_cwnd_gain)
1931 printf(",cwnd_gain:%g",
1932 (double)s->bbr_info->bbr_cwnd_gain / 256.0);
1933 printf(")");
1934 }
1935
8250bc9f
VK		 1936 if (s->send_bps)
1937 printf(" send %sbps", sprint_bw(b1, s->send_bps));
1938 if (s->lastsnd)
1939 printf(" lastsnd:%u", s->lastsnd);
1940 if (s->lastrcv)
1941 printf(" lastrcv:%u", s->lastrcv);
1942 if (s->lastack)
1943 printf(" lastack:%u", s->lastack);
1944
1945 if (s->pacing_rate) {
1946 printf(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate));
1947 if (s->pacing_rate_max)
1948 printf("/%sbps", sprint_bw(b1,
1949 s->pacing_rate_max));
1950 }
1951
2f579872
NC		 1952 if (s->delivery_rate)
1953 printf(" delivery_rate %sbps", sprint_bw(b1, s->delivery_rate));
1954 if (s->app_limited)
1955 printf(" app_limited");
1956
b6c7fc61
YC		 1957 if (s->busy_time) {
1958 printf(" busy:%llums", s->busy_time / 1000);
1959 if (s->rwnd_limited)
1960 printf(" rwnd_limited:%llums(%.1f%%)",
1961 s->rwnd_limited / 1000,
1962 100.0 * s->rwnd_limited / s->busy_time);
1963 if (s->sndbuf_limited)
1964 printf(" sndbuf_limited:%llums(%.1f%%)",
1965 s->sndbuf_limited / 1000,
1966 100.0 * s->sndbuf_limited / s->busy_time);
1967 }
1968
8250bc9f
VK		 1969 if (s->unacked)
1970 printf(" unacked:%u", s->unacked);
1971 if (s->retrans || s->retrans_total)
1972 printf(" retrans:%u/%u", s->retrans, s->retrans_total);
1973 if (s->lost)
1974 printf(" lost:%u", s->lost);
055840f2 1975 if (s->sacked && s->ss.state != SS_LISTEN)
8250bc9f
VK		 1976 printf(" sacked:%u", s->sacked);
1977 if (s->fackets)
1978 printf(" fackets:%u", s->fackets);
1979 if (s->reordering != 3)
1980 printf(" reordering:%d", s->reordering);
1981 if (s->rcv_rtt)
1982 printf(" rcv_rtt:%g", s->rcv_rtt);
1983 if (s->rcv_space)
1984 printf(" rcv_space:%d", s->rcv_space);
9e99e495
SH		 1985 if (s->not_sent)
1986 printf(" notsent:%u", s->not_sent);
1987 if (s->min_rtt)
1988 printf(" minrtt:%g", s->min_rtt);
8250bc9f
VK		 1989}
1990
055840f2
VK		 1991static void tcp_timer_print(struct tcpstat *s)
1992{
86dfa1be
PS		 1993 static const char * const tmr_name[] = {
1994 "off",
1995 "on",
1996 "keepalive",
1997 "timewait",
1998 "persist",
1999 "unknown"
2000 };
2001
055840f2
VK		 2002 if (s->timer) {
2003 if (s->timer > 4)
2004 s->timer = 5;
2005 printf(" timer:(%s,%s,%d)",
2006 tmr_name[s->timer],
2007 print_ms_timer(s->timeout),
2008 s->retrans);
2009 }
2010}
2011
f89d46ad
PS		 2012static void sctp_timer_print(struct tcpstat *s)
2013{
2014 if (s->timer)
2015 printf(" timer:(T3_RTX,%s,%d)",
2016 print_ms_timer(s->timeout), s->retrans);
2017}
2018
8250bc9f
VK		 2019static int tcp_show_line(char *line, const struct filter *f, int family)
2020{
2021 int rto = 0, ato = 0;
2022 struct tcpstat s = {};
2023 char *loc, *rem, *data;
2024 char opt[256];
2025 int n;
2026 int hz = get_user_hz();
2027
2028 if (proc_inet_split_line(line, &loc, &rem, &data))
2029 return -1;
2030
2031 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2032
8250bc9f
VK		 2033 if (!(f->states & (1 << state)))
2034 return 0;
2035
055840f2 2036 proc_parse_inet_addr(loc, rem, family, &s.ss);
ae665a52 2037
055840f2 2038 if (f->f && run_ssfilter(f->f, &s.ss) == 0)
aba5acdf 2039 return 0;
ae665a52 2040
aba5acdf 2041 opt[0] = 0;
d1f338b3 2042 n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
055840f2
VK		 2043 &s.ss.state, &s.ss.wq, &s.ss.rq,
2044 &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes,
2045 &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd,
2046 &s.ssthresh, opt);
ae665a52 2047
aba5acdf
SH		 2048 if (n < 17)
2049 opt[0] = 0;
ae665a52 2050
aba5acdf 2051 if (n < 12) {
8250bc9f 2052 rto = 0;
aba5acdf
SH		 2053 s.cwnd = 2;
2054 s.ssthresh = -1;
8250bc9f 2055 ato = s.qack = 0;
aba5acdf 2056 }
ae665a52 2057
8250bc9f
VK		 2058 s.retrans = s.timer != 1 ? s.probes : s.retrans;
2059 s.timeout = (s.timeout * 1000 + hz - 1) / hz;
2060 s.ato = (double)ato / hz;
2061 s.qack /= 2;
2062 s.rto = (double)rto;
2063 s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh;
2064 s.rto = s.rto != 3 * hz ? s.rto / hz : 0;
be7e4d20 2065 s.ss.type = IPPROTO_TCP;
ae665a52 2066
1267c0b9 2067 inet_stats_print(&s.ss, false);
055840f2
VK		 2068
2069 if (show_options)
2070 tcp_timer_print(&s);
116ac927 2071
aba5acdf 2072 if (show_details) {
f1b39e1b 2073 sock_details_print(&s.ss);
aba5acdf
SH		 2074 if (opt[0])
2075 printf(" opt:\"%s\"", opt);
2076 }
aba5acdf 2077
8250bc9f
VK		 2078 if (show_tcpinfo)
2079 tcp_stats_print(&s);
2080
2081 printf("\n");
aba5acdf
SH		 2082 return 0;
2083}
2084
ab01dbbb
SH		 2085static int generic_record_read(FILE *fp,
2086 int (*worker)(char*, const struct filter *, int),
2087 const struct filter *f, int fam)
aba5acdf 2088{
ab01dbbb 2089 char line[256];
aba5acdf 2090
ab01dbbb
SH		 2091 /* skip header */
2092 if (fgets(line, sizeof(line), fp) == NULL)
aba5acdf 2093 goto outerr;
ab01dbbb
SH		 2094
2095 while (fgets(line, sizeof(line), fp) != NULL) {
2096 int n = strlen(line);
acd1e437 2097
ab01dbbb
SH		 2098 if (n == 0 || line[n-1] != '\n') {
2099 errno = -EINVAL;
2100 return -1;
aba5acdf 2101 }
ab01dbbb 2102 line[n-1] = 0;
aba5acdf 2103
ab01dbbb
SH		 2104 if (worker(line, f, fam) < 0)
2105 return 0;
2106 }
aba5acdf 2107outerr:
ab01dbbb
SH		 2108
2109 return ferror(fp) ? -1 : 0;
aba5acdf 2110}
ae665a52 2111
51ff9f24
HFS		 2112static void print_skmeminfo(struct rtattr *tb[], int attrtype)
2113{
2114 const __u32 *skmeminfo;
db08bdb8
VK		 2115
2116 if (!tb[attrtype]) {
2117 if (attrtype == INET_DIAG_SKMEMINFO) {
2118 if (!tb[INET_DIAG_MEMINFO])
2119 return;
2120
2121 const struct inet_diag_meminfo *minfo =
2122 RTA_DATA(tb[INET_DIAG_MEMINFO]);
2123
2124 printf(" mem:(r%u,w%u,f%u,t%u)",
2125 minfo->idiag_rmem,
2126 minfo->idiag_wmem,
2127 minfo->idiag_fmem,
2128 minfo->idiag_tmem);
2129 }
51ff9f24 2130 return;
db08bdb8
VK		 2131 }
2132
51ff9f24
HFS		 2133 skmeminfo = RTA_DATA(tb[attrtype]);
2134
2135 printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2136 skmeminfo[SK_MEMINFO_RMEM_ALLOC],
2137 skmeminfo[SK_MEMINFO_RCVBUF],
2138 skmeminfo[SK_MEMINFO_WMEM_ALLOC],
2139 skmeminfo[SK_MEMINFO_SNDBUF],
2140 skmeminfo[SK_MEMINFO_FWD_ALLOC],
2141 skmeminfo[SK_MEMINFO_WMEM_QUEUED],
2142 skmeminfo[SK_MEMINFO_OPTMEM]);
2143
2144 if (RTA_PAYLOAD(tb[attrtype]) >=
2145 (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32))
2146 printf(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]);
2147
6df9c7a0
ED		 2148 if (RTA_PAYLOAD(tb[attrtype]) >=
2149 (SK_MEMINFO_DROPS + 1) * sizeof(__u32))
2150 printf(",d%u", skmeminfo[SK_MEMINFO_DROPS]);
2151
51ff9f24
HFS		 2152 printf(")");
2153}
2154
da9cc6ab
ID		 2155static void print_md5sig(struct tcp_diag_md5sig *sig)
2156{
2157 printf("%s/%d=",
2158 format_host(sig->tcpm_family,
2159 sig->tcpm_family == AF_INET6 ? 16 : 4,
2160 &sig->tcpm_addr),
2161 sig->tcpm_prefixlen);
2162 print_escape_buf(sig->tcpm_key, sig->tcpm_keylen, " ,");
2163}
2164
8250bc9f
VK		 2165#define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2166
5b816047
PE		 2167static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2168 struct rtattr *tb[])
7d105b56 2169{
b4b0b7d5 2170 double rtt = 0;
8250bc9f 2171 struct tcpstat s = {};
7d105b56 2172
055840f2
VK		 2173 s.ss.state = r->idiag_state;
2174
db08bdb8 2175 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
7d105b56 2176
351efcde 2177 if (tb[INET_DIAG_INFO]) {
05e18118 2178 struct tcp_info *info;
351efcde 2179 int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
05e18118
SH		 2180
2181 /* workaround for older kernels with less fields */
2182 if (len < sizeof(*info)) {
2183 info = alloca(sizeof(*info));
351efcde 2184 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
656e8fdd 2185 memset((char *)info + len, 0, sizeof(*info) - len);
05e18118 2186 } else
351efcde 2187 info = RTA_DATA(tb[INET_DIAG_INFO]);
05e18118 2188
b4b0b7d5 2189 if (show_options) {
8250bc9f
VK		 2190 s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS);
2191 s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK);
2192 s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN);
2193 s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN);
2194 s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA);
b4b0b7d5 2195 }
52d5ac3f 2196
d2055ea5
ED		 2197 if (tb[INET_DIAG_CONG])
2198 strncpy(s.cong_alg,
2199 rta_getattr_str(tb[INET_DIAG_CONG]),
2200 sizeof(s.cong_alg) - 1);
8250bc9f
VK		 2201
2202 if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) {
2203 s.has_wscale_opt = true;
2204 s.snd_wscale = info->tcpi_snd_wscale;
2205 s.rcv_wscale = info->tcpi_rcv_wscale;
2206 }
ea8fc104 2207
7d105b56 2208 if (info->tcpi_rto && info->tcpi_rto != 3000000)
8250bc9f
VK		 2209 s.rto = (double)info->tcpi_rto / 1000;
2210
2211 s.backoff = info->tcpi_backoff;
2212 s.rtt = (double)info->tcpi_rtt / 1000;
2213 s.rttvar = (double)info->tcpi_rttvar / 1000;
11ba90fc 2214 s.ato = (double)info->tcpi_ato / 1000;
8250bc9f 2215 s.mss = info->tcpi_snd_mss;
38e6dbc4
ED		 2216 s.rcv_mss = info->tcpi_rcv_mss;
2217 s.advmss = info->tcpi_advmss;
8250bc9f
VK		 2218 s.rcv_space = info->tcpi_rcv_space;
2219 s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000;
2220 s.lastsnd = info->tcpi_last_data_sent;
2221 s.lastrcv = info->tcpi_last_data_recv;
2222 s.lastack = info->tcpi_last_ack_recv;
2223 s.unacked = info->tcpi_unacked;
2224 s.retrans = info->tcpi_retrans;
2225 s.retrans_total = info->tcpi_total_retrans;
2226 s.lost = info->tcpi_lost;
2227 s.sacked = info->tcpi_sacked;
2228 s.reordering = info->tcpi_reordering;
2229 s.rcv_space = info->tcpi_rcv_space;
2230 s.cwnd = info->tcpi_snd_cwnd;
2231
7d105b56 2232 if (info->tcpi_snd_ssthresh < 0xFFFF)
8250bc9f 2233 s.ssthresh = info->tcpi_snd_ssthresh;
52d5ac3f 2234
b4b0b7d5 2235 rtt = (double) info->tcpi_rtt;
351efcde 2236 if (tb[INET_DIAG_VEGASINFO]) {
05e18118 2237 const struct tcpvegas_info *vinfo
351efcde 2238 = RTA_DATA(tb[INET_DIAG_VEGASINFO]);
7d105b56 2239
ae665a52 2240 if (vinfo->tcpv_enabled &&
8250bc9f 2241 vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff)
ea8fc104 2242 rtt = vinfo->tcpv_rtt;
b4b0b7d5
SH		 2243 }
2244
907e1aca 2245 if (tb[INET_DIAG_DCTCPINFO]) {
8250bc9f
VK		 2246 struct dctcpstat *dctcp = malloc(sizeof(struct
2247 dctcpstat));
2248
907e1aca
DB		 2249 const struct tcp_dctcp_info *dinfo
2250 = RTA_DATA(tb[INET_DIAG_DCTCPINFO]);
2251
8250bc9f
VK		 2252 dctcp->enabled = !!dinfo->dctcp_enabled;
2253 dctcp->ce_state = dinfo->dctcp_ce_state;
2254 dctcp->alpha = dinfo->dctcp_alpha;
2255 dctcp->ab_ecn = dinfo->dctcp_ab_ecn;
2256 dctcp->ab_tot = dinfo->dctcp_ab_tot;
2257 s.dctcp = dctcp;
907e1aca
DB		 2258 }
2259
2f0f9aef
NC		 2260 if (tb[INET_DIAG_BBRINFO]) {
2261 const void *bbr_info = RTA_DATA(tb[INET_DIAG_BBRINFO]);
2262 int len = min(RTA_PAYLOAD(tb[INET_DIAG_BBRINFO]),
2263 sizeof(*s.bbr_info));
2264
2265 s.bbr_info = calloc(1, sizeof(*s.bbr_info));
2266 if (s.bbr_info && bbr_info)
2267 memcpy(s.bbr_info, bbr_info, len);
2268 }
2269
b4b0b7d5 2270 if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
8250bc9f
VK		 2271 s.send_bps = (double) info->tcpi_snd_cwnd *
2272 (double)info->tcpi_snd_mss * 8000000. / rtt;
7d105b56 2273 }
b4b0b7d5 2274
eb6028b2 2275 if (info->tcpi_pacing_rate &&
8250bc9f
VK		 2276 info->tcpi_pacing_rate != ~0ULL) {
2277 s.pacing_rate = info->tcpi_pacing_rate * 8.;
eb6028b2
ED		 2278
2279 if (info->tcpi_max_pacing_rate &&
8250bc9f
VK		 2280 info->tcpi_max_pacing_rate != ~0ULL)
2281 s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.;
eb6028b2 2282 }
1a4dda71
ED		 2283 s.bytes_acked = info->tcpi_bytes_acked;
2284 s.bytes_received = info->tcpi_bytes_received;
ecb435ea
CG		 2285 s.segs_out = info->tcpi_segs_out;
2286 s.segs_in = info->tcpi_segs_in;
414aeec9
MKL		 2287 s.data_segs_out = info->tcpi_data_segs_out;
2288 s.data_segs_in = info->tcpi_data_segs_in;
9e99e495 2289 s.not_sent = info->tcpi_notsent_bytes;
d9ba887e
ED		 2290 if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U)
2291 s.min_rtt = (double) info->tcpi_min_rtt / 1000;
2f579872
NC		 2292 s.delivery_rate = info->tcpi_delivery_rate * 8.;
2293 s.app_limited = info->tcpi_delivery_rate_app_limited;
b6c7fc61
YC		 2294 s.busy_time = info->tcpi_busy_time;
2295 s.rwnd_limited = info->tcpi_rwnd_limited;
2296 s.sndbuf_limited = info->tcpi_sndbuf_limited;
8250bc9f 2297 tcp_stats_print(&s);
92de1c2c 2298 free(s.dctcp);
2f0f9aef 2299 free(s.bbr_info);
77a8ca81 2300 }
da9cc6ab
ID		 2301 if (tb[INET_DIAG_MD5SIG]) {
2302 struct tcp_diag_md5sig *sig = RTA_DATA(tb[INET_DIAG_MD5SIG]);
2303 int len = RTA_PAYLOAD(tb[INET_DIAG_MD5SIG]);
2304
2305 printf(" md5keys:");
2306 print_md5sig(sig++);
2307 for (len -= sizeof(*sig); len > 0; len -= sizeof(*sig)) {
2308 printf(",");
2309 print_md5sig(sig++);
2310 }
2311 }
77a8ca81
PE		 2312}
2313
f89d46ad
PS		 2314static const char *format_host_sa(struct sockaddr_storage *sa)
2315{
2316 union {
2317 struct sockaddr_in sin;
2318 struct sockaddr_in6 sin6;
2319 } *saddr = (void *)sa;
2320
2321 switch (sa->ss_family) {
2322 case AF_INET:
2323 return format_host(AF_INET, 4, &saddr->sin.sin_addr);
2324 case AF_INET6:
2325 return format_host(AF_INET6, 16, &saddr->sin6.sin6_addr);
2326 default:
2327 return "";
2328 }
2329}
2330
2331static void sctp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2332 struct rtattr *tb[])
2333{
2334 struct sockaddr_storage *sa;
2335 int len;
2336
2337 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
2338
2339 if (tb[INET_DIAG_LOCALS]) {
2340 len = RTA_PAYLOAD(tb[INET_DIAG_LOCALS]);
2341 sa = RTA_DATA(tb[INET_DIAG_LOCALS]);
2342
2343 printf("locals:%s", format_host_sa(sa));
2344 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2345 printf(",%s", format_host_sa(sa));
2346
2347 }
2348 if (tb[INET_DIAG_PEERS]) {
2349 len = RTA_PAYLOAD(tb[INET_DIAG_PEERS]);
2350 sa = RTA_DATA(tb[INET_DIAG_PEERS]);
2351
2352 printf(" peers:%s", format_host_sa(sa));
2353 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2354 printf(",%s", format_host_sa(sa));
2355 }
2356 if (tb[INET_DIAG_INFO]) {
2357 struct sctp_info *info;
2358 len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
2359
2360 /* workaround for older kernels with less fields */
2361 if (len < sizeof(*info)) {
2362 info = alloca(sizeof(*info));
2363 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
2364 memset((char *)info + len, 0, sizeof(*info) - len);
2365 } else
2366 info = RTA_DATA(tb[INET_DIAG_INFO]);
2367
2368 sctp_stats_print(info);
2369 }
2370}
2371
82d73ea0 2372static void parse_diag_msg(struct nlmsghdr *nlh, struct sockstat *s)
aba5acdf 2373{
acd1e437 2374 struct rtattr *tb[INET_DIAG_MAX+1];
351efcde 2375 struct inet_diag_msg *r = NLMSG_DATA(nlh);
aba5acdf 2376
acd1e437 2377 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
5b816047
PE		 2378 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
2379
82d73ea0
DA		 2380 s->state = r->idiag_state;
2381 s->local.family = s->remote.family = r->idiag_family;
2382 s->lport = ntohs(r->id.idiag_sport);
2383 s->rport = ntohs(r->id.idiag_dport);
2384 s->wq = r->idiag_wqueue;
2385 s->rq = r->idiag_rqueue;
2386 s->ino = r->idiag_inode;
2387 s->uid = r->idiag_uid;
2388 s->iface = r->id.idiag_if;
2389 s->sk = cookie_sk_get(&r->id.idiag_cookie[0]);
2390
ec75249b
LC		 2391 s->mark = 0;
2392 if (tb[INET_DIAG_MARK])
9f1370c0 2393 s->mark = rta_getattr_u32(tb[INET_DIAG_MARK]);
41fe6c34 2394 if (tb[INET_DIAG_PROTOCOL])
9f1370c0 2395 s->raw_prot = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]);
41fe6c34
CG		 2396 else
2397 s->raw_prot = 0;
ec75249b 2398
82d73ea0
DA		 2399 if (s->local.family == AF_INET)
2400 s->local.bytelen = s->remote.bytelen = 4;
2401 else
2402 s->local.bytelen = s->remote.bytelen = 16;
8250bc9f 2403
82d73ea0
DA		 2404 memcpy(s->local.data, r->id.idiag_src, s->local.bytelen);
2405 memcpy(s->remote.data, r->id.idiag_dst, s->local.bytelen);
2406}
aba5acdf 2407
82d73ea0 2408static int inet_show_sock(struct nlmsghdr *nlh,
be7e4d20 2409 struct sockstat *s)
82d73ea0
DA		 2410{
2411 struct rtattr *tb[INET_DIAG_MAX+1];
2412 struct inet_diag_msg *r = NLMSG_DATA(nlh);
1267c0b9 2413 unsigned char v6only = 0;
82d73ea0
DA		 2414
2415 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
2416 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
aba5acdf 2417
6885e3bf 2418 if (tb[INET_DIAG_PROTOCOL])
9f1370c0 2419 s->type = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]);
6885e3bf 2420
1267c0b9
PS		 2421 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY])
2422 v6only = rta_getattr_u8(tb[INET_DIAG_SKV6ONLY]);
2423
2424 inet_stats_print(s, v6only);
116ac927 2425
055840f2
VK		 2426 if (show_options) {
2427 struct tcpstat t = {};
2428
2429 t.timer = r->idiag_timer;
2430 t.timeout = r->idiag_expires;
2431 t.retrans = r->idiag_retrans;
be7e4d20 2432 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2433 sctp_timer_print(&t);
2434 else
2435 tcp_timer_print(&t);
055840f2
VK		 2436 }
2437
aba5acdf 2438 if (show_details) {
82d73ea0 2439 sock_details_print(s);
1267c0b9 2440 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY])
f32dc746 2441 printf(" v6only:%u", v6only);
1267c0b9 2442
5b816047
PE		 2443 if (tb[INET_DIAG_SHUTDOWN]) {
2444 unsigned char mask;
acd1e437 2445
9f1370c0 2446 mask = rta_getattr_u8(tb[INET_DIAG_SHUTDOWN]);
5b816047
PE		 2447 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
2448 }
aba5acdf 2449 }
8250bc9f 2450
be7e4d20 2451 if (show_mem || (show_tcpinfo && s->type != IPPROTO_UDP)) {
7d105b56 2452 printf("\n\t");
be7e4d20 2453 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2454 sctp_show_info(nlh, r, tb);
2455 else
2456 tcp_show_info(nlh, r, tb);
aba5acdf 2457 }
f89d46ad 2458 sctp_ino = s->ino;
7d105b56 2459
aba5acdf 2460 printf("\n");
aba5acdf 2461 return 0;
aba5acdf
SH		 2462}
2463
746a695f 2464static int tcpdiag_send(int fd, int protocol, struct filter *f)
aba5acdf 2465{
d17b136f 2466 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
aba5acdf
SH		 2467 struct {
2468 struct nlmsghdr nlh;
351efcde 2469 struct inet_diag_req r;
d17b136f
PS		 2470 } req = {
2471 .nlh.nlmsg_len = sizeof(req),
2472 .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
2473 .nlh.nlmsg_seq = MAGIC_SEQ,
2474 .r.idiag_family = AF_INET,
2475 .r.idiag_states = f->states,
2476 };
aba5acdf
SH		 2477 char *bc = NULL;
2478 int bclen;
2479 struct msghdr msg;
2480 struct rtattr rta;
aba5acdf 2481 struct iovec iov[3];
376fb868 2482 int iovlen = 1;
aba5acdf 2483
346f8ca8
PE		 2484 if (protocol == IPPROTO_UDP)
2485 return -1;
2486
3fe5b534
PE		 2487 if (protocol == IPPROTO_TCP)
2488 req.nlh.nlmsg_type = TCPDIAG_GETSOCK;
2489 else
2490 req.nlh.nlmsg_type = DCCPDIAG_GETSOCK;
910b0397 2491 if (show_mem) {
ae665a52 2492 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
910b0397
SW		 2493 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2494 }
b4b0b7d5 2495
7d105b56 2496 if (show_tcpinfo) {
351efcde
SH		 2497 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2498 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2499 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
7d105b56 2500 }
aba5acdf 2501
ae665a52
SH		 2502 iov[0] = (struct iovec){
2503 .iov_base = &req,
2504 .iov_len = sizeof(req)
ea8fc104 2505 };
aba5acdf
SH		 2506 if (f->f) {
2507 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2508 if (bclen) {
2509 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2510 rta.rta_len = RTA_LENGTH(bclen);
2511 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2512 iov[2] = (struct iovec){ bc, bclen };
2513 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2514 iovlen = 3;
2515 }
aba5acdf
SH		 2516 }
2517
2518 msg = (struct msghdr) {
acd1e437 2519 .msg_name = (void *)&nladdr,
ea8fc104 2520 .msg_namelen = sizeof(nladdr),
ae665a52 2521 .msg_iov = iov,
376fb868 2522 .msg_iovlen = iovlen,
aba5acdf
SH		 2523 };
2524
930a75f9
ED		 2525 if (sendmsg(fd, &msg, 0) < 0) {
2526 close(fd);
aba5acdf 2527 return -1;
930a75f9 2528 }
aba5acdf 2529
746a695f
PE		 2530 return 0;
2531}
2532
886d19d6
PE		 2533static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
2534{
d17b136f 2535 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
5fb421d4 2536 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
886d19d6
PE		 2537 char *bc = NULL;
2538 int bclen;
2539 struct msghdr msg;
2540 struct rtattr rta;
2541 struct iovec iov[3];
376fb868 2542 int iovlen = 1;
886d19d6
PE		 2543
2544 if (family == PF_UNSPEC)
2545 return tcpdiag_send(fd, protocol, f);
2546
886d19d6
PE		 2547 memset(&req.r, 0, sizeof(req.r));
2548 req.r.sdiag_family = family;
2549 req.r.sdiag_protocol = protocol;
2550 req.r.idiag_states = f->states;
2551 if (show_mem) {
2552 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
2553 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2554 }
2555
2556 if (show_tcpinfo) {
2557 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2558 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2559 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
2560 }
2561
2562 iov[0] = (struct iovec){
2563 .iov_base = &req,
2564 .iov_len = sizeof(req)
2565 };
2566 if (f->f) {
2567 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2568 if (bclen) {
2569 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2570 rta.rta_len = RTA_LENGTH(bclen);
2571 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2572 iov[2] = (struct iovec){ bc, bclen };
2573 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2574 iovlen = 3;
2575 }
886d19d6
PE		 2576 }
2577
2578 msg = (struct msghdr) {
acd1e437 2579 .msg_name = (void *)&nladdr,
886d19d6
PE		 2580 .msg_namelen = sizeof(nladdr),
2581 .msg_iov = iov,
376fb868 2582 .msg_iovlen = iovlen,
886d19d6
PE		 2583 };
2584
2585 if (sendmsg(fd, &msg, 0) < 0) {
2586 close(fd);
2587 return -1;
2588 }
2589
2590 return 0;
2591}
2592
486ccd99
VK		 2593struct inet_diag_arg {
2594 struct filter *f;
2595 int protocol;
fb2594c1 2596 struct rtnl_handle *rth;
486ccd99 2597};
aba5acdf 2598
41fe6c34 2599static int kill_inet_sock(struct nlmsghdr *h, void *arg, struct sockstat *s)
fb2594c1
LC		 2600{
2601 struct inet_diag_msg *d = NLMSG_DATA(h);
2602 struct inet_diag_arg *diag_arg = arg;
2603 struct rtnl_handle *rth = diag_arg->rth;
acd1e437 2604
fb2594c1
LC		 2605 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
2606
2607 req.nlh.nlmsg_type = SOCK_DESTROY;
2608 req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
2609 req.nlh.nlmsg_seq = ++rth->seq;
2610 req.r.sdiag_family = d->idiag_family;
2611 req.r.sdiag_protocol = diag_arg->protocol;
2612 req.r.id = d->id;
2613
41fe6c34
CG		 2614 if (diag_arg->protocol == IPPROTO_RAW) {
2615 struct inet_diag_req_raw *raw = (void *)&req.r;
2616
2617 BUILD_BUG_ON(sizeof(req.r) != sizeof(*raw));
2618 raw->sdiag_raw_protocol = s->raw_prot;
2619 }
2620
fb2594c1
LC		 2621 return rtnl_talk(rth, &req.nlh, NULL, 0);
2622}
2623
486ccd99
VK		 2624static int show_one_inet_sock(const struct sockaddr_nl *addr,
2625 struct nlmsghdr *h, void *arg)
2626{
2627 int err;
2628 struct inet_diag_arg *diag_arg = arg;
2629 struct inet_diag_msg *r = NLMSG_DATA(h);
82d73ea0 2630 struct sockstat s = {};
aba5acdf 2631
486ccd99
VK		 2632 if (!(diag_arg->f->families & (1 << r->idiag_family)))
2633 return 0;
82d73ea0
DA		 2634
2635 parse_diag_msg(h, &s);
be7e4d20 2636 s.type = diag_arg->protocol;
82d73ea0
DA		 2637
2638 if (diag_arg->f->f && run_ssfilter(diag_arg->f->f, &s) == 0)
2639 return 0;
2640
41fe6c34 2641 if (diag_arg->f->kill && kill_inet_sock(h, arg, &s) != 0) {
fb2594c1
LC		 2642 if (errno == EOPNOTSUPP || errno == ENOENT) {
2643 /* Socket can't be closed, or is already closed. */
2644 return 0;
2645 } else {
2646 perror("SOCK_DESTROY answers");
2647 return -1;
2648 }
2649 }
82d73ea0 2650
be7e4d20 2651 err = inet_show_sock(h, &s);
82d73ea0 2652 if (err < 0)
486ccd99 2653 return err;
aba5acdf 2654
486ccd99
VK		 2655 return 0;
2656}
886d19d6 2657
486ccd99
VK		 2658static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol)
2659{
2660 int err = 0;
fb2594c1 2661 struct rtnl_handle rth, rth2;
486ccd99
VK		 2662 int family = PF_INET;
2663 struct inet_diag_arg arg = { .f = f, .protocol = protocol };
886d19d6 2664
486ccd99
VK		 2665 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
2666 return -1;
fb2594c1
LC		 2667
2668 if (f->kill) {
2669 if (rtnl_open_byproto(&rth2, 0, NETLINK_SOCK_DIAG)) {
2670 rtnl_close(&rth);
2671 return -1;
2672 }
2673 arg.rth = &rth2;
2674 }
2675
486ccd99
VK		 2676 rth.dump = MAGIC_SEQ;
2677 rth.dump_fp = dump_fp;
518af1e0
ED		 2678 if (preferred_family == PF_INET6)
2679 family = PF_INET6;
886d19d6 2680
486ccd99
VK		 2681again:
2682 if ((err = sockdiag_send(family, rth.fd, protocol, f)))
2683 goto Exit;
aba5acdf 2684
486ccd99
VK		 2685 if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) {
2686 if (family != PF_UNSPEC) {
2687 family = PF_UNSPEC;
2688 goto again;
aba5acdf 2689 }
486ccd99 2690 goto Exit;
aba5acdf 2691 }
518af1e0 2692 if (family == PF_INET && preferred_family != PF_INET) {
886d19d6
PE		 2693 family = PF_INET6;
2694 goto again;
2695 }
2696
486ccd99
VK		 2697Exit:
2698 rtnl_close(&rth);
fb2594c1
LC		 2699 if (arg.rth)
2700 rtnl_close(arg.rth);
486ccd99 2701 return err;
aba5acdf
SH		 2702}
2703
ab01dbbb 2704static int tcp_show_netlink_file(struct filter *f)
aba5acdf
SH		 2705{
2706 FILE *fp;
e557212e 2707 char buf[16384];
4b45ae22 2708 int err = -1;
aba5acdf
SH		 2709
2710 if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) {
2711 perror("fopen($TCPDIAG_FILE)");
4b45ae22 2712 return err;
aba5acdf
SH		 2713 }
2714
2715 while (1) {
4b45ae22 2716 int status, err2;
acd1e437 2717 struct nlmsghdr *h = (struct nlmsghdr *)buf;
82d73ea0 2718 struct sockstat s = {};
aba5acdf
SH		 2719
2720 status = fread(buf, 1, sizeof(*h), fp);
2721 if (status < 0) {
2722 perror("Reading header from $TCPDIAG_FILE");
4b45ae22 2723 break;
aba5acdf
SH		 2724 }
2725 if (status != sizeof(*h)) {
2726 perror("Unexpected EOF reading $TCPDIAG_FILE");
4b45ae22 2727 break;
aba5acdf
SH		 2728 }
2729
2730 status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp);
2731
2732 if (status < 0) {
2733 perror("Reading $TCPDIAG_FILE");
4b45ae22 2734 break;
aba5acdf
SH		 2735 }
2736 if (status + sizeof(*h) < h->nlmsg_len) {
2737 perror("Unexpected EOF reading $TCPDIAG_FILE");
4b45ae22 2738 break;
aba5acdf
SH		 2739 }
2740
2741 /* The only legal exit point */
4b45ae22
PS		 2742 if (h->nlmsg_type == NLMSG_DONE) {
2743 err = 0;
2744 break;
2745 }
aba5acdf
SH		 2746
2747 if (h->nlmsg_type == NLMSG_ERROR) {
acd1e437
SH		 2748 struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h);
2749
aba5acdf
SH		 2750 if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
2751 fprintf(stderr, "ERROR truncated\n");
2752 } else {
2753 errno = -err->error;
2754 perror("TCPDIAG answered");
2755 }
4b45ae22 2756 break;
aba5acdf
SH		 2757 }
2758
82d73ea0 2759 parse_diag_msg(h, &s);
be7e4d20 2760 s.type = IPPROTO_TCP;
82d73ea0
DA		 2761
2762 if (f && f->f && run_ssfilter(f->f, &s) == 0)
2763 continue;
2764
4b45ae22
PS		 2765 err2 = inet_show_sock(h, &s);
2766 if (err2 < 0) {
2767 err = err2;
2768 break;
2769 }
aba5acdf 2770 }
4b45ae22
PS		 2771
2772 fclose(fp);
2773 return err;
aba5acdf
SH		 2774}
2775
6c6bbc30 2776static int tcp_show(struct filter *f)
aba5acdf 2777{
ab01dbbb 2778 FILE *fp = NULL;
aba5acdf
SH		 2779 char *buf = NULL;
2780 int bufsize = 64*1024;
2781
1527a17e
VK		 2782 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2783 return 0;
2784
aba5acdf
SH		 2785 dg_proto = TCP_PROTO;
2786
2787 if (getenv("TCPDIAG_FILE"))
2788 return tcp_show_netlink_file(f);
2789
2790 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
6c6bbc30 2791 && inet_show_netlink(f, NULL, IPPROTO_TCP) == 0)
aba5acdf
SH		 2792 return 0;
2793
2794 /* Sigh... We have to parse /proc/net/tcp... */
2795
ab01dbbb 2796
aba5acdf
SH		 2797 /* Estimate amount of sockets and try to allocate
2798 * huge buffer to read all the table at one read.
2799 * Limit it by 16MB though. The assumption is: as soon as
2800 * kernel was able to hold information about N connections,
2801 * it is able to give us some memory for snapshot.
2802 */
2803 if (1) {
a221d621
BL		 2804 get_slabstat(&slabstat);
2805
aba5acdf 2806 int guess = slabstat.socks+slabstat.tcp_syns;
acd1e437 2807
aba5acdf
SH		 2808 if (f->states&(1<<SS_TIME_WAIT))
2809 guess += slabstat.tcp_tws;
2810 if (guess > (16*1024*1024)/128)
2811 guess = (16*1024*1024)/128;
2812 guess *= 128;
2813 if (guess > bufsize)
2814 bufsize = guess;
2815 }
2816 while (bufsize >= 64*1024) {
2817 if ((buf = malloc(bufsize)) != NULL)
2818 break;
2819 bufsize /= 2;
2820 }
2821 if (buf == NULL) {
2822 errno = ENOMEM;
2823 return -1;
2824 }
2825
2826 if (f->families & (1<<AF_INET)) {
69cae645 2827 if ((fp = net_tcp_open()) == NULL)
aba5acdf 2828 goto outerr;
ab01dbbb
SH		 2829
2830 setbuffer(fp, buf, bufsize);
2831 if (generic_record_read(fp, tcp_show_line, f, AF_INET))
aba5acdf 2832 goto outerr;
ab01dbbb 2833 fclose(fp);
aba5acdf
SH		 2834 }
2835
2836 if ((f->families & (1<<AF_INET6)) &&
69cae645 2837 (fp = net_tcp6_open()) != NULL) {
ab01dbbb
SH		 2838 setbuffer(fp, buf, bufsize);
2839 if (generic_record_read(fp, tcp_show_line, f, AF_INET6))
aba5acdf 2840 goto outerr;
ab01dbbb 2841 fclose(fp);
aba5acdf
SH		 2842 }
2843
2844 free(buf);
2845 return 0;
2846
2847outerr:
2848 do {
2849 int saved_errno = errno;
acd1e437 2850
92de1c2c 2851 free(buf);
ab01dbbb
SH		 2852 if (fp)
2853 fclose(fp);
aba5acdf
SH		 2854 errno = saved_errno;
2855 return -1;
2856 } while (0);
2857}
2858
6c6bbc30
PS		 2859static int dccp_show(struct filter *f)
2860{
2861 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2862 return 0;
2863
2864 if (!getenv("PROC_NET_DCCP") && !getenv("PROC_ROOT")
2865 && inet_show_netlink(f, NULL, IPPROTO_DCCP) == 0)
2866 return 0;
2867
2868 return 0;
2869}
2870
f89d46ad
PS		 2871static int sctp_show(struct filter *f)
2872{
2873 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2874 return 0;
2875
2876 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
2877 && inet_show_netlink(f, NULL, IPPROTO_SCTP) == 0)
2878 return 0;
2879
2880 return 0;
2881}
aba5acdf 2882
d1f28cf1 2883static int dgram_show_line(char *line, const struct filter *f, int family)
aba5acdf 2884{
055840f2 2885 struct sockstat s = {};
aba5acdf
SH		 2886 char *loc, *rem, *data;
2887 char opt[256];
2888 int n;
aba5acdf 2889
8250bc9f 2890 if (proc_inet_split_line(line, &loc, &rem, &data))
aba5acdf 2891 return -1;
aba5acdf 2892
8250bc9f 2893 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2894
8250bc9f
VK		 2895 if (!(f->states & (1 << state)))
2896 return 0;
aba5acdf 2897
8250bc9f 2898 proc_parse_inet_addr(loc, rem, family, &s);
aba5acdf
SH		 2899
2900 if (f->f && run_ssfilter(f->f, &s) == 0)
2901 return 0;
2902
2903 opt[0] = 0;
e7113c61 2904 n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
aba5acdf
SH		 2905 &s.state, &s.wq, &s.rq,
2906 &s.uid, &s.ino,
2907 &s.refcnt, &s.sk, opt);
2908
2909 if (n < 9)
2910 opt[0] = 0;
2911
be7e4d20 2912 s.type = dg_proto == UDP_PROTO ? IPPROTO_UDP : 0;
1267c0b9 2913 inet_stats_print(&s, false);
aba5acdf 2914
f1b39e1b
VK		 2915 if (show_details && opt[0])
2916 printf(" opt:\"%s\"", opt);
aba5acdf 2917
8250bc9f 2918 printf("\n");
aba5acdf
SH		 2919 return 0;
2920}
2921
d1f28cf1 2922static int udp_show(struct filter *f)
aba5acdf 2923{
ab01dbbb 2924 FILE *fp = NULL;
aba5acdf 2925
1527a17e
VK		 2926 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2927 return 0;
2928
ace5cb31
VK		 2929 dg_proto = UDP_PROTO;
2930
346f8ca8
PE		 2931 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
2932 && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0)
2933 return 0;
2934
aba5acdf 2935 if (f->families&(1<<AF_INET)) {
69cae645 2936 if ((fp = net_udp_open()) == NULL)
aba5acdf 2937 goto outerr;
ab01dbbb 2938 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2939 goto outerr;
ab01dbbb 2940 fclose(fp);
aba5acdf
SH		 2941 }
2942
2943 if ((f->families&(1<<AF_INET6)) &&
69cae645 2944 (fp = net_udp6_open()) != NULL) {
ab01dbbb 2945 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2946 goto outerr;
ab01dbbb 2947 fclose(fp);
aba5acdf
SH		 2948 }
2949 return 0;
2950
2951outerr:
2952 do {
2953 int saved_errno = errno;
acd1e437 2954
ab01dbbb
SH		 2955 if (fp)
2956 fclose(fp);
aba5acdf
SH		 2957 errno = saved_errno;
2958 return -1;
2959 } while (0);
2960}
2961
d1f28cf1 2962static int raw_show(struct filter *f)
aba5acdf 2963{
ab01dbbb 2964 FILE *fp = NULL;
aba5acdf 2965
1527a17e
VK		 2966 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2967 return 0;
2968
aba5acdf
SH		 2969 dg_proto = RAW_PROTO;
2970
41fe6c34
CG		 2971 if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") &&
2972 inet_show_netlink(f, NULL, IPPROTO_RAW) == 0)
2973 return 0;
2974
aba5acdf 2975 if (f->families&(1<<AF_INET)) {
69cae645 2976 if ((fp = net_raw_open()) == NULL)
aba5acdf 2977 goto outerr;
ab01dbbb 2978 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2979 goto outerr;
ab01dbbb 2980 fclose(fp);
aba5acdf
SH		 2981 }
2982
2983 if ((f->families&(1<<AF_INET6)) &&
69cae645 2984 (fp = net_raw6_open()) != NULL) {
ab01dbbb 2985 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2986 goto outerr;
ab01dbbb 2987 fclose(fp);
aba5acdf
SH		 2988 }
2989 return 0;
2990
2991outerr:
2992 do {
2993 int saved_errno = errno;
acd1e437 2994
ab01dbbb
SH		 2995 if (fp)
2996 fclose(fp);
aba5acdf
SH		 2997 errno = saved_errno;
2998 return -1;
2999 } while (0);
3000}
3001
ec4d0d8a 3002#define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
aba5acdf 3003
2d0e538f 3004static void unix_list_drop_first(struct sockstat **list)
aba5acdf 3005{
2d0e538f 3006 struct sockstat *s = *list;
ec4d0d8a 3007
2d0e538f
PS		 3008 (*list) = (*list)->next;
3009 free(s->name);
3010 free(s);
aba5acdf
SH		 3011}
3012
ec4d0d8a 3013static bool unix_type_skip(struct sockstat *s, struct filter *f)
bf4ceee6
VK		 3014{
3015 if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
3016 return true;
3017 if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
3018 return true;
3019 if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
3020 return true;
3021 return false;
3022}
3023
2d0e538f 3024static void unix_stats_print(struct sockstat *s, struct filter *f)
aba5acdf 3025{
b217df10 3026 char port_name[30] = {};
aba5acdf 3027
2d0e538f 3028 sock_state_print(s);
2d791bc8 3029
2d0e538f
PS		 3030 sock_addr_print(s->name ?: "*", " ",
3031 int_to_str(s->lport, port_name), NULL);
3032 sock_addr_print(s->peer_name ?: "*", " ",
3033 int_to_str(s->rport, port_name), NULL);
116ac927 3034
2d0e538f 3035 proc_ctx_print(s);
aba5acdf
SH		 3036}
3037
8a4025f6 3038static int unix_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh,
3039 void *arg)
dfbaa90d 3040{
8a4025f6 3041 struct filter *f = (struct filter *)arg;
dfbaa90d
PE		 3042 struct unix_diag_msg *r = NLMSG_DATA(nlh);
3043 struct rtattr *tb[UNIX_DIAG_MAX+1];
99bb68ff
VK		 3044 char name[128];
3045 struct sockstat stat = { .name = "*", .peer_name = "*" };
dfbaa90d 3046
acd1e437 3047 parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr *)(r+1),
dfbaa90d
PE		 3048 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3049
bf4ceee6
VK		 3050 stat.type = r->udiag_type;
3051 stat.state = r->udiag_state;
ec4d0d8a
VK		 3052 stat.ino = stat.lport = r->udiag_ino;
3053 stat.local.family = stat.remote.family = AF_UNIX;
0d2e01c5 3054
bf4ceee6
VK		 3055 if (unix_type_skip(&stat, f))
3056 return 0;
dfbaa90d 3057
defd61ca
HFS		 3058 if (tb[UNIX_DIAG_RQLEN]) {
3059 struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]);
acd1e437 3060
bf4ceee6
VK		 3061 stat.rq = rql->udiag_rqueue;
3062 stat.wq = rql->udiag_wqueue;
defd61ca 3063 }
dfbaa90d
PE		 3064 if (tb[UNIX_DIAG_NAME]) {
3065 int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
3066
3067 memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
3068 name[len] = '\0';
1dd0cca7
SH		 3069 if (name[0] == '\0') {
3070 int i;
3071 for (i = 0; i < len; i++)
878dadc7
IB		 3072 if (name[i] == '\0')
3073 name[i] = '@';
1dd0cca7 3074 }
99bb68ff
VK		 3075 stat.name = &name[0];
3076 memcpy(stat.local.data, &stat.name, sizeof(stat.name));
bf4ceee6 3077 }
dfbaa90d 3078 if (tb[UNIX_DIAG_PEER])
ec4d0d8a 3079 stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]);
dfbaa90d 3080
29999b0f
VK		 3081 if (f->f && run_ssfilter(f->f, &stat) == 0)
3082 return 0;
3083
bf4ceee6 3084 unix_stats_print(&stat, f);
dfbaa90d 3085
45199997 3086 if (show_mem)
51ff9f24 3087 print_skmeminfo(tb, UNIX_DIAG_MEMINFO);
5b816047
PE		 3088 if (show_details) {
3089 if (tb[UNIX_DIAG_SHUTDOWN]) {
3090 unsigned char mask;
acd1e437 3091
9f1370c0 3092 mask = rta_getattr_u8(tb[UNIX_DIAG_SHUTDOWN]);
5b816047
PE		 3093 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
3094 }
3095 }
2d0e538f 3096 printf("\n");
ec4d0d8a 3097
dfbaa90d
PE		 3098 return 0;
3099}
3100
8a4025f6 3101static int handle_netlink_request(struct filter *f, struct nlmsghdr *req,
3102 size_t size, rtnl_filter_t show_one_sock)
dfbaa90d 3103{
8a4025f6 3104 int ret = -1;
3105 struct rtnl_handle rth;
dfbaa90d 3106
8a4025f6 3107 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
dfbaa90d
PE		 3108 return -1;
3109
8a4025f6 3110 rth.dump = MAGIC_SEQ;
dfbaa90d 3111
8a4025f6 3112 if (rtnl_send(&rth, req, size) < 0)
3113 goto Exit;
dfbaa90d 3114
8a4025f6 3115 if (rtnl_dump_filter(&rth, show_one_sock, f))
3116 goto Exit;
dfbaa90d 3117
8a4025f6 3118 ret = 0;
3119Exit:
3120 rtnl_close(&rth);
3121 return ret;
dfbaa90d
PE		 3122}
3123
8a4025f6 3124static int unix_show_netlink(struct filter *f)
d8402b96 3125{
5fb421d4 3126 DIAG_REQUEST(req, struct unix_diag_req r);
d8402b96
AV		 3127
3128 req.r.sdiag_family = AF_UNIX;
3129 req.r.udiag_states = f->states;
3130 req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
3131 if (show_mem)
3132 req.r.udiag_show |= UDIAG_SHOW_MEMINFO;
3133
8a4025f6 3134 return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock);
d8402b96
AV		 3135}
3136
d1f28cf1 3137static int unix_show(struct filter *f)
aba5acdf
SH		 3138{
3139 FILE *fp;
3140 char buf[256];
3141 char name[128];
3142 int newformat = 0;
3143 int cnt;
ec4d0d8a 3144 struct sockstat *list = NULL;
96d45daa
PS		 3145 const int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT,
3146 SS_ESTABLISHED, SS_CLOSING };
aba5acdf 3147
9db7bf15
VK		 3148 if (!filter_af_get(f, AF_UNIX))
3149 return 0;
3150
f25062e9
PS		 3151 if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT")
3152 && unix_show_netlink(f) == 0)
dfbaa90d
PE		 3153 return 0;
3154
ab01dbbb 3155 if ((fp = net_unix_open()) == NULL)
aba5acdf 3156 return -1;
61170fd8 3157 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3158 fclose(fp);
3159 return -1;
3160 }
aba5acdf 3161
ae665a52 3162 if (memcmp(buf, "Peer", 4) == 0)
aba5acdf
SH		 3163 newformat = 1;
3164 cnt = 0;
3165
61170fd8 3166 while (fgets(buf, sizeof(buf), fp)) {
ec4d0d8a 3167 struct sockstat *u, **insp;
aba5acdf
SH		 3168 int flags;
3169
0ee9052f 3170 if (!(u = calloc(1, sizeof(*u))))
aba5acdf 3171 break;
aba5acdf
SH		 3172
3173 if (sscanf(buf, "%x: %x %x %x %x %x %d %s",
ec4d0d8a 3174 &u->rport, &u->rq, &u->wq, &flags, &u->type,
aba5acdf
SH		 3175 &u->state, &u->ino, name) < 8)
3176 name[0] = 0;
3177
ec4d0d8a
VK		 3178 u->lport = u->ino;
3179 u->local.family = u->remote.family = AF_UNIX;
3180
3181 if (flags & (1 << 16)) {
aba5acdf 3182 u->state = SS_LISTEN;
0aa03350
PS		 3183 } else if (u->state > 0 &&
3184 u->state <= ARRAY_SIZE(unix_state_map)) {
aba5acdf 3185 u->state = unix_state_map[u->state-1];
ec4d0d8a 3186 if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport)
aba5acdf
SH		 3187 u->state = SS_ESTABLISHED;
3188 }
2d0e538f
PS		 3189 if (unix_type_skip(u, f) ||
3190 !(f->states & (1 << u->state))) {
3191 free(u);
3192 continue;
3193 }
aba5acdf
SH		 3194
3195 if (!newformat) {
ec4d0d8a 3196 u->rport = 0;
aba5acdf
SH		 3197 u->rq = 0;
3198 u->wq = 0;
3199 }
3200
2d0e538f
PS		 3201 if (name[0]) {
3202 u->name = strdup(name);
46131577
PS		 3203 if (!u->name) {
3204 free(u);
2d0e538f 3205 break;
46131577 3206 }
2d0e538f
PS		 3207 }
3208
3209 if (u->rport) {
3210 struct sockstat *p;
3211
3212 for (p = list; p; p = p->next) {
3213 if (u->rport == p->lport)
3214 break;
3215 }
3216 if (!p)
3217 u->peer_name = "?";
3218 else
3219 u->peer_name = p->name ? : "*";
3220 }
3221
3222 if (f->f) {
3223 struct sockstat st = {
3224 .local.family = AF_UNIX,
3225 .remote.family = AF_UNIX,
3226 };
3227
3228 memcpy(st.local.data, &u->name, sizeof(u->name));
3229 if (strcmp(u->peer_name, "*"))
3230 memcpy(st.remote.data, &u->peer_name,
3231 sizeof(u->peer_name));
3232 if (run_ssfilter(f->f, &st) == 0) {
3233 free(u->name);
3234 free(u);
3235 continue;
3236 }
3237 }
3238
aba5acdf
SH		 3239 insp = &list;
3240 while (*insp) {
3241 if (u->type < (*insp)->type ||
3242 (u->type == (*insp)->type &&
3243 u->ino < (*insp)->ino))
3244 break;
3245 insp = &(*insp)->next;
3246 }
3247 u->next = *insp;
3248 *insp = u;
3249
aba5acdf 3250 if (++cnt > MAX_UNIX_REMEMBER) {
2d0e538f
PS		 3251 while (list) {
3252 unix_stats_print(list, f);
3253 printf("\n");
3254
3255 unix_list_drop_first(&list);
3256 }
aba5acdf
SH		 3257 cnt = 0;
3258 }
3259 }
a3fd8e58 3260 fclose(fp);
2d0e538f 3261 while (list) {
bf4ceee6 3262 unix_stats_print(list, f);
2d0e538f
PS		 3263 printf("\n");
3264
3265 unix_list_drop_first(&list);
aba5acdf
SH		 3266 }
3267
3268 return 0;
3269}
3270
89f634f9 3271static int packet_stats_print(struct sockstat *s, const struct filter *f)
4a0053b6 3272{
b217df10
VK		 3273 const char *addr, *port;
3274 char ll_name[16];
372c30d2 3275
be7e4d20
PS		 3276 s->local.family = s->remote.family = AF_PACKET;
3277
4a0053b6 3278 if (f->f) {
89f634f9 3279 s->local.data[0] = s->prot;
89f634f9 3280 if (run_ssfilter(f->f, s) == 0)
4a0053b6
VK		 3281 return 1;
3282 }
372c30d2 3283
be7e4d20 3284 sock_state_print(s);
372c30d2 3285
b217df10
VK		 3286 if (s->prot == 3)
3287 addr = "*";
3288 else
3289 addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name));
3290
3291 if (s->iface == 0)
3292 port = "*";
3293 else
3294 port = xll_index_to_name(s->iface);
372c30d2 3295
b217df10
VK		 3296 sock_addr_print(addr, ":", port, NULL);
3297 sock_addr_print("", "*", "", NULL);
116ac927 3298
5f27ac1d 3299 proc_ctx_print(s);
116ac927 3300
f1b39e1b
VK		 3301 if (show_details)
3302 sock_details_print(s);
3303
4a0053b6
VK		 3304 return 0;
3305}
3306
2631b856
VK		 3307static void packet_show_ring(struct packet_diag_ring *ring)
3308{
3309 printf("blk_size:%d", ring->pdr_block_size);
3310 printf(",blk_nr:%d", ring->pdr_block_nr);
3311 printf(",frm_size:%d", ring->pdr_frame_size);
3312 printf(",frm_nr:%d", ring->pdr_frame_nr);
3313 printf(",tmo:%d", ring->pdr_retire_tmo);
3314 printf(",features:0x%x", ring->pdr_features);
3315}
3316
4a0053b6
VK		 3317static int packet_show_sock(const struct sockaddr_nl *addr,
3318 struct nlmsghdr *nlh, void *arg)
3319{
3320 const struct filter *f = arg;
3321 struct packet_diag_msg *r = NLMSG_DATA(nlh);
2631b856
VK		 3322 struct packet_diag_info *pinfo = NULL;
3323 struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL;
4a0053b6 3324 struct rtattr *tb[PACKET_DIAG_MAX+1];
89f634f9 3325 struct sockstat stat = {};
2631b856
VK		 3326 uint32_t fanout = 0;
3327 bool has_fanout = false;
4a0053b6 3328
acd1e437 3329 parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr *)(r+1),
4a0053b6
VK		 3330 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3331
3332 /* use /proc/net/packet if all info are not available */
3333 if (!tb[PACKET_DIAG_MEMINFO])
3334 return -1;
3335
2d791bc8
VK		 3336 stat.type = r->pdiag_type;
3337 stat.prot = r->pdiag_num;
3338 stat.ino = r->pdiag_ino;
3339 stat.state = SS_CLOSE;
f1b39e1b 3340 stat.sk = cookie_sk_get(&r->pdiag_cookie[0]);
4a0053b6
VK		 3341
3342 if (tb[PACKET_DIAG_MEMINFO]) {
3343 __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]);
acd1e437 3344
4a0053b6
VK		 3345 stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3346 }
3347
3348 if (tb[PACKET_DIAG_INFO]) {
2631b856 3349 pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
2d791bc8 3350 stat.lport = stat.iface = pinfo->pdi_index;
4a0053b6
VK		 3351 }
3352
f1b39e1b 3353 if (tb[PACKET_DIAG_UID])
9f1370c0 3354 stat.uid = rta_getattr_u32(tb[PACKET_DIAG_UID]);
f1b39e1b 3355
2631b856
VK		 3356 if (tb[PACKET_DIAG_RX_RING])
3357 ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]);
3358
3359 if (tb[PACKET_DIAG_TX_RING])
3360 ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]);
3361
3362 if (tb[PACKET_DIAG_FANOUT]) {
3363 has_fanout = true;
9f1370c0 3364 fanout = rta_getattr_u32(tb[PACKET_DIAG_FANOUT]);
2631b856
VK		 3365 }
3366
4a0053b6
VK		 3367 if (packet_stats_print(&stat, f))
3368 return 0;
3369
2631b856
VK		 3370 if (show_details) {
3371 if (pinfo) {
3372 printf("\n\tver:%d", pinfo->pdi_version);
3373 printf(" cpy_thresh:%d", pinfo->pdi_copy_thresh);
3374 printf(" flags( ");
3375 if (pinfo->pdi_flags & PDI_RUNNING)
3376 printf("running");
3377 if (pinfo->pdi_flags & PDI_AUXDATA)
3378 printf(" auxdata");
3379 if (pinfo->pdi_flags & PDI_ORIGDEV)
3380 printf(" origdev");
3381 if (pinfo->pdi_flags & PDI_VNETHDR)
3382 printf(" vnethdr");
3383 if (pinfo->pdi_flags & PDI_LOSS)
3384 printf(" loss");
3385 if (!pinfo->pdi_flags)
3386 printf("0");
3387 printf(" )");
3388 }
3389 if (ring_rx) {
3390 printf("\n\tring_rx(");
3391 packet_show_ring(ring_rx);
3392 printf(")");
3393 }
3394 if (ring_tx) {
3395 printf("\n\tring_tx(");
3396 packet_show_ring(ring_tx);
3397 printf(")");
3398 }
3399 if (has_fanout) {
3400 uint16_t type = (fanout >> 16) & 0xffff;
3401
3402 printf("\n\tfanout(");
3403 printf("id:%d,", fanout & 0xffff);
3404 printf("type:");
3405
3406 if (type == 0)
3407 printf("hash");
3408 else if (type == 1)
3409 printf("lb");
3410 else if (type == 2)
3411 printf("cpu");
3412 else if (type == 3)
3413 printf("roll");
3414 else if (type == 4)
3415 printf("random");
3416 else if (type == 5)
3417 printf("qm");
3418 else
3419 printf("0x%x", type);
3420
3421 printf(")");
3422 }
3423 }
3424
372c30d2
ND		 3425 if (show_bpf && tb[PACKET_DIAG_FILTER]) {
3426 struct sock_filter *fil =
3427 RTA_DATA(tb[PACKET_DIAG_FILTER]);
3428 int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) /
3429 sizeof(struct sock_filter);
3430
3431 printf("\n\tbpf filter (%d): ", num);
3432 while (num) {
3433 printf(" 0x%02x %u %u %u,",
3434 fil->code, fil->jt, fil->jf, fil->k);
3435 num--;
3436 fil++;
3437 }
3438 }
3439 printf("\n");
3440 return 0;
3441}
3442
8a4025f6 3443static int packet_show_netlink(struct filter *f)
372c30d2 3444{
5fb421d4 3445 DIAG_REQUEST(req, struct packet_diag_req r);
372c30d2 3446
372c30d2 3447 req.r.sdiag_family = AF_PACKET;
2631b856
VK		 3448 req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO |
3449 PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT;
372c30d2 3450
8a4025f6 3451 return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock);
372c30d2
ND		 3452}
3453
4a0053b6
VK		 3454static int packet_show_line(char *buf, const struct filter *f, int fam)
3455{
3456 unsigned long long sk;
89f634f9 3457 struct sockstat stat = {};
4a0053b6
VK		 3458 int type, prot, iface, state, rq, uid, ino;
3459
3460 sscanf(buf, "%llx %*d %d %x %d %d %u %u %u",
3461 &sk,
3462 &type, &prot, &iface, &state,
3463 &rq, &uid, &ino);
3464
3465 if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB)))
3466 return 0;
3467 if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB)))
3468 return 0;
3469
3470 stat.type = type;
3471 stat.prot = prot;
2d791bc8 3472 stat.lport = stat.iface = iface;
4a0053b6
VK		 3473 stat.state = state;
3474 stat.rq = rq;
3475 stat.uid = uid;
3476 stat.ino = ino;
2d791bc8
VK		 3477 stat.state = SS_CLOSE;
3478
4a0053b6
VK		 3479 if (packet_stats_print(&stat, f))
3480 return 0;
3481
4a0053b6
VK		 3482 printf("\n");
3483 return 0;
3484}
aba5acdf 3485
d1f28cf1 3486static int packet_show(struct filter *f)
aba5acdf
SH		 3487{
3488 FILE *fp;
b95d28c3 3489 int rc = 0;
3d0b7439 3490
9db7bf15 3491 if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE)))
b9ea445d 3492 return 0;
aba5acdf 3493
4a0053b6
VK		 3494 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
3495 packet_show_netlink(f) == 0)
372c30d2
ND		 3496 return 0;
3497
ab01dbbb 3498 if ((fp = net_packet_open()) == NULL)
aba5acdf 3499 return -1;
4a0053b6 3500 if (generic_record_read(fp, packet_show_line, f, AF_PACKET))
b95d28c3 3501 rc = -1;
aba5acdf 3502
b95d28c3
PS		 3503 fclose(fp);
3504 return rc;
aba5acdf
SH		 3505}
3506
5f24ec0e 3507static int netlink_show_one(struct filter *f,
acd1e437
SH		 3508 int prot, int pid, unsigned int groups,
3509 int state, int dst_pid, unsigned int dst_group,
129709ae
AV		 3510 int rq, int wq,
3511 unsigned long long sk, unsigned long long cb)
3512{
301826be
PS		 3513 struct sockstat st = {
3514 .state = SS_CLOSE,
3515 .rq = rq,
3516 .wq = wq,
3517 .local.family = AF_NETLINK,
3518 .remote.family = AF_NETLINK,
3519 };
acd1e437 3520
b217df10
VK		 3521 SPRINT_BUF(prot_buf) = {};
3522 const char *prot_name;
3523 char procname[64] = {};
eef43b50 3524
129709ae 3525 if (f->f) {
055840f2
VK		 3526 st.rport = -1;
3527 st.lport = pid;
3528 st.local.data[0] = prot;
055840f2 3529 if (run_ssfilter(f->f, &st) == 0)
5f24ec0e 3530 return 1;
129709ae
AV		 3531 }
3532
be7e4d20 3533 sock_state_print(&st);
eef43b50 3534
b217df10
VK		 3535 if (resolve_services)
3536 prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf));
3537 else
3538 prot_name = int_to_str(prot, prot_buf);
eef43b50 3539
129709ae 3540 if (pid == -1) {
b217df10 3541 procname[0] = '*';
129709ae
AV		 3542 } else if (resolve_services) {
3543 int done = 0;
acd1e437 3544
129709ae
AV		 3545 if (!pid) {
3546 done = 1;
b217df10 3547 strncpy(procname, "kernel", 6);
129709ae 3548 } else if (pid > 0) {
129709ae 3549 FILE *fp;
acd1e437 3550
0ee9052f 3551 snprintf(procname, sizeof(procname), "%s/%d/stat",
129709ae
AV		 3552 getenv("PROC_ROOT") ? : "/proc", pid);
3553 if ((fp = fopen(procname, "r")) != NULL) {
3554 if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
0ee9052f 3555 snprintf(procname+strlen(procname),
3556 sizeof(procname)-strlen(procname),
3557 "/%d", pid);
129709ae
AV		 3558 done = 1;
3559 }
3560 fclose(fp);
3561 }
3562 }
3563 if (!done)
b217df10 3564 int_to_str(pid, procname);
129709ae 3565 } else {
b217df10 3566 int_to_str(pid, procname);
129709ae 3567 }
f271fe01 3568
b217df10
VK		 3569 sock_addr_print(prot_name, ":", procname, NULL);
3570
f271fe01 3571 if (state == NETLINK_CONNECTED) {
b217df10
VK		 3572 char dst_group_buf[30];
3573 char dst_pid_buf[30];
acd1e437 3574
b217df10
VK		 3575 sock_addr_print(int_to_str(dst_group, dst_group_buf), ":",
3576 int_to_str(dst_pid, dst_pid_buf), NULL);
f271fe01 3577 } else {
b217df10 3578 sock_addr_print("", "*", "", NULL);
f271fe01 3579 }
129709ae 3580
116ac927 3581 char *pid_context = NULL;
acd1e437 3582
116ac927
RH		 3583 if (show_proc_ctx) {
3584 /* The pid value will either be:
3585 * 0 if destination kernel - show kernel initial context.
3586 * A valid process pid - use getpidcon.
3587 * A unique value allocated by the kernel or netlink user
3588 * to the process - show context as "not available".
3589 */
3590 if (!pid)
3591 security_get_initial_context("kernel", &pid_context);
3592 else if (pid > 0)
3593 getpidcon(pid, &pid_context);
3594
3595 if (pid_context != NULL) {
3596 printf("proc_ctx=%-*s ", serv_width, pid_context);
3597 free(pid_context);
3598 } else {
3599 printf("proc_ctx=%-*s ", serv_width, "unavailable");
3600 }
3601 }
3602
129709ae
AV		 3603 if (show_details) {
3604 printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups);
3605 }
3606 printf("\n");
3607
5f24ec0e 3608 return 0;
129709ae
AV		 3609}
3610
8a4025f6 3611static int netlink_show_sock(const struct sockaddr_nl *addr,
3612 struct nlmsghdr *nlh, void *arg)
ecb928c8 3613{
8a4025f6 3614 struct filter *f = (struct filter *)arg;
ecb928c8
AV		 3615 struct netlink_diag_msg *r = NLMSG_DATA(nlh);
3616 struct rtattr *tb[NETLINK_DIAG_MAX+1];
3617 int rq = 0, wq = 0;
3618 unsigned long groups = 0;
3619
acd1e437 3620 parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr *)(r+1),
ecb928c8
AV		 3621 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3622
3623 if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS]))
3624 groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]);
3625
3626 if (tb[NETLINK_DIAG_MEMINFO]) {
3627 const __u32 *skmeminfo;
acd1e437 3628
ecb928c8
AV		 3629 skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]);
3630
3631 rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3632 wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC];
3633 }
3634
5f24ec0e 3635 if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups,
ecb928c8 3636 r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group,
5f24ec0e
VK		 3637 rq, wq, 0, 0)) {
3638 return 0;
3639 }
ecb928c8
AV		 3640
3641 if (show_mem) {
3642 printf("\t");
3643 print_skmeminfo(tb, NETLINK_DIAG_MEMINFO);
3644 printf("\n");
3645 }
3646
3647 return 0;
3648}
3649
8a4025f6 3650static int netlink_show_netlink(struct filter *f)
ecb928c8 3651{
5fb421d4 3652 DIAG_REQUEST(req, struct netlink_diag_req r);
ecb928c8
AV		 3653
3654 req.r.sdiag_family = AF_NETLINK;
3655 req.r.sdiag_protocol = NDIAG_PROTO_ALL;
3656 req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO;
3657
8a4025f6 3658 return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock);
ecb928c8
AV		 3659}
3660
d1f28cf1 3661static int netlink_show(struct filter *f)
aba5acdf
SH		 3662{
3663 FILE *fp;
3664 char buf[256];
3665 int prot, pid;
acd1e437 3666 unsigned int groups;
aba5acdf
SH		 3667 int rq, wq, rc;
3668 unsigned long long sk, cb;
3669
9db7bf15 3670 if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE)))
b9ea445d
VK		 3671 return 0;
3672
129709ae 3673 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
8a4025f6 3674 netlink_show_netlink(f) == 0)
129709ae
AV		 3675 return 0;
3676
ab01dbbb 3677 if ((fp = net_netlink_open()) == NULL)
aba5acdf 3678 return -1;
61170fd8 3679 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3680 fclose(fp);
3681 return -1;
3682 }
aba5acdf 3683
61170fd8 3684 while (fgets(buf, sizeof(buf), fp)) {
aba5acdf
SH		 3685 sscanf(buf, "%llx %d %d %x %d %d %llx %d",
3686 &sk,
3687 &prot, &pid, &groups, &rq, &wq, &cb, &rc);
3688
f271fe01 3689 netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb);
aba5acdf
SH		 3690 }
3691
b95d28c3 3692 fclose(fp);
aba5acdf
SH		 3693 return 0;
3694}
3695
6885e3bf
CG		 3696struct sock_diag_msg {
3697 __u8 sdiag_family;
3698};
3699
3700static int generic_show_sock(const struct sockaddr_nl *addr,
3701 struct nlmsghdr *nlh, void *arg)
3702{
3703 struct sock_diag_msg *r = NLMSG_DATA(nlh);
3704 struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX };
3705
3706 switch (r->sdiag_family) {
3707 case AF_INET:
3708 case AF_INET6:
3709 return show_one_inet_sock(addr, nlh, &inet_arg);
3710 case AF_UNIX:
3711 return unix_show_sock(addr, nlh, arg);
3712 case AF_PACKET:
3713 return packet_show_sock(addr, nlh, arg);
3714 case AF_NETLINK:
3715 return netlink_show_sock(addr, nlh, arg);
3716 default:
3717 return -1;
3718 }
3719}
3720
3721static int handle_follow_request(struct filter *f)
3722{
6b224dad 3723 int ret = 0;
6885e3bf
CG		 3724 int groups = 0;
3725 struct rtnl_handle rth;
3726
3727 if (f->families & (1 << AF_INET) && f->dbs & (1 << TCP_DB))
3728 groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1);
3729 if (f->families & (1 << AF_INET) && f->dbs & (1 << UDP_DB))
3730 groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1);
3731 if (f->families & (1 << AF_INET6) && f->dbs & (1 << TCP_DB))
3732 groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1);
3733 if (f->families & (1 << AF_INET6) && f->dbs & (1 << UDP_DB))
3734 groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1);
3735
3736 if (groups == 0)
3737 return -1;
3738
3739 if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG))
3740 return -1;
3741
3742 rth.dump = 0;
3743 rth.local.nl_pid = 0;
3744
3745 if (rtnl_dump_filter(&rth, generic_show_sock, f))
6b224dad 3746 ret = -1;
6885e3bf 3747
6885e3bf
CG		 3748 rtnl_close(&rth);
3749 return ret;
3750}
3751
d1f28cf1 3752static int get_snmp_int(char *proto, char *key, int *result)
aba5acdf
SH		 3753{
3754 char buf[1024];
3755 FILE *fp;
3756 int protolen = strlen(proto);
3757 int keylen = strlen(key);
3758
3759 *result = 0;
3760
ab01dbbb 3761 if ((fp = net_snmp_open()) == NULL)
aba5acdf
SH		 3762 return -1;
3763
3764 while (fgets(buf, sizeof(buf), fp) != NULL) {
3765 char *p = buf;
3766 int pos = 0;
acd1e437 3767
aba5acdf
SH		 3768 if (memcmp(buf, proto, protolen))
3769 continue;
3770 while ((p = strchr(p, ' ')) != NULL) {
3771 pos++;
3772 p++;
3773 if (memcmp(p, key, keylen) == 0 &&
3774 (p[keylen] == ' ' || p[keylen] == '\n'))
3775 break;
3776 }
3777 if (fgets(buf, sizeof(buf), fp) == NULL)
3778 break;
3779 if (memcmp(buf, proto, protolen))
3780 break;
3781 p = buf;
3782 while ((p = strchr(p, ' ')) != NULL) {
3783 p++;
3784 if (--pos == 0) {
3785 sscanf(p, "%d", result);
3786 fclose(fp);
3787 return 0;
3788 }
3789 }
3790 }
3791
3792 fclose(fp);
3793 errno = ESRCH;
3794 return -1;
3795}
3796
3797
3798/* Get stats from sockstat */
3799
acd1e437 3800struct ssummary {
aba5acdf
SH		 3801 int socks;
3802 int tcp_mem;
3803 int tcp_total;
3804 int tcp_orphans;
3805 int tcp_tws;
3806 int tcp4_hashed;
3807 int udp4;
3808 int raw4;
3809 int frag4;
3810 int frag4_mem;
3811 int tcp6_hashed;
3812 int udp6;
3813 int raw6;
3814 int frag6;
3815 int frag6_mem;
3816};
3817
055840f2 3818static void get_sockstat_line(char *line, struct ssummary *s)
aba5acdf
SH		 3819{
3820 char id[256], rem[256];
3821
3822 if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2)
3823 return;
3824
3825 if (strcmp(id, "sockets:") == 0)
3826 sscanf(rem, "%*s%d", &s->socks);
3827 else if (strcmp(id, "UDP:") == 0)
3828 sscanf(rem, "%*s%d", &s->udp4);
3829 else if (strcmp(id, "UDP6:") == 0)
3830 sscanf(rem, "%*s%d", &s->udp6);
3831 else if (strcmp(id, "RAW:") == 0)
3832 sscanf(rem, "%*s%d", &s->raw4);
3833 else if (strcmp(id, "RAW6:") == 0)
3834 sscanf(rem, "%*s%d", &s->raw6);
3835 else if (strcmp(id, "TCP6:") == 0)
3836 sscanf(rem, "%*s%d", &s->tcp6_hashed);
3837 else if (strcmp(id, "FRAG:") == 0)
3838 sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem);
3839 else if (strcmp(id, "FRAG6:") == 0)
3840 sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem);
3841 else if (strcmp(id, "TCP:") == 0)
3842 sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d",
3843 &s->tcp4_hashed,
3844 &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem);
3845}
3846
055840f2 3847static int get_sockstat(struct ssummary *s)
aba5acdf
SH		 3848{
3849 char buf[256];
3850 FILE *fp;
3851
3852 memset(s, 0, sizeof(*s));
3853
ab01dbbb 3854 if ((fp = net_sockstat_open()) == NULL)
aba5acdf 3855 return -1;
acd1e437 3856 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3857 get_sockstat_line(buf, s);
3858 fclose(fp);
3859
ab01dbbb 3860 if ((fp = net_sockstat6_open()) == NULL)
aba5acdf 3861 return 0;
acd1e437 3862 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3863 get_sockstat_line(buf, s);
3864 fclose(fp);
3865
3866 return 0;
3867}
3868
d1f28cf1 3869static int print_summary(void)
aba5acdf 3870{
055840f2 3871 struct ssummary s;
2f938ce1 3872 int tcp_estab;
aba5acdf
SH		 3873
3874 if (get_sockstat(&s) < 0)
3875 perror("ss: get_sockstat");
2f938ce1 3876 if (get_snmp_int("Tcp:", "CurrEstab", &tcp_estab) < 0)
aba5acdf
SH		 3877 perror("ss: get_snmpstat");
3878
a221d621
BL		 3879 get_slabstat(&slabstat);
3880
aba5acdf
SH		 3881 printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks);
3882
3883 printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
3884 s.tcp_total + slabstat.tcp_syns + s.tcp_tws,
2f938ce1 3885 tcp_estab,
aba5acdf
SH		 3886 s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws),
3887 s.tcp_orphans,
3888 slabstat.tcp_syns,
3889 s.tcp_tws, slabstat.tcp_tws,
3890 slabstat.tcp_ports
3891 );
3892
3893 printf("\n");
3894 printf("Transport Total IP IPv6\n");
3895 printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-");
3896 printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6);
3897 printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6);
3898 printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed);
ae665a52 3899 printf("INET %-9d %-9d %-9d\n",
aba5acdf
SH		 3900 s.raw4+s.udp4+s.tcp4_hashed+
3901 s.raw6+s.udp6+s.tcp6_hashed,
3902 s.raw4+s.udp4+s.tcp4_hashed,
3903 s.raw6+s.udp6+s.tcp6_hashed);
3904 printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6);
3905
3906 printf("\n");
3907
3908 return 0;
3909}
3910
7a96e199 3911static void _usage(FILE *dest)
aba5acdf 3912{
7a96e199 3913 fprintf(dest,
aba5acdf
SH		 3914"Usage: ss [ OPTIONS ]\n"
3915" ss [ OPTIONS ] [ FILTER ]\n"
ff041f16
VK		 3916" -h, --help this message\n"
3917" -V, --version output version information\n"
3918" -n, --numeric don't resolve service names\n"
ab61159a 3919" -r, --resolve resolve host names\n"
ff041f16
VK		 3920" -a, --all display all sockets\n"
3921" -l, --listening display listening sockets\n"
ab61159a
SH		 3922" -o, --options show timer information\n"
3923" -e, --extended show detailed socket information\n"
3924" -m, --memory show socket memory usage\n"
ff041f16
VK		 3925" -p, --processes show process using socket\n"
3926" -i, --info show internal TCP information\n"
3927" -s, --summary show socket usage summary\n"
b0f01cf6 3928" -b, --bpf show bpf filter socket information\n"
6885e3bf 3929" -E, --events continually display sockets as they are destroyed\n"
ff041f16
VK		 3930" -Z, --context display process SELinux security contexts\n"
3931" -z, --contexts display process and socket SELinux security contexts\n"
95ce04bc 3932" -N, --net switch to the specified network namespace name\n"
ab61159a
SH		 3933"\n"
3934" -4, --ipv4 display only IP version 4 sockets\n"
3935" -6, --ipv6 display only IP version 6 sockets\n"
ff041f16
VK		 3936" -0, --packet display PACKET sockets\n"
3937" -t, --tcp display only TCP sockets\n"
f89d46ad 3938" -S, --sctp display only SCTP sockets\n"
ff041f16
VK		 3939" -u, --udp display only UDP sockets\n"
3940" -d, --dccp display only DCCP sockets\n"
3941" -w, --raw display only RAW sockets\n"
3942" -x, --unix display only Unix domain sockets\n"
ab61159a 3943" -f, --family=FAMILY display sockets of type FAMILY\n"
ebef3174 3944" FAMILY := {inet|inet6|link|unix|netlink|help}\n"
ab61159a 3945"\n"
fb2594c1 3946" -K, --kill forcibly close sockets, display what was closed\n"
7a4559f6 3947" -H, --no-header Suppress header line\n"
fb2594c1 3948"\n"
583de149 3949" -A, --query=QUERY, --socket=QUERY\n"
56dee73e 3950" QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n"
ab61159a 3951"\n"
583de149 3952" -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
ab61159a 3953" -F, --filter=FILE read filter information from FILE\n"
ff041f16
VK		 3954" FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
3955" STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
ae4e21c9 3956" TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listening|closing}\n"
ff041f16
VK		 3957" connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3958" synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3959" bucket := {syn-recv|time-wait}\n"
ae4e21c9 3960" big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listening|closing}\n"
ab61159a 3961 );
7a96e199
AH		 3962}
3963
3964static void help(void) __attribute__((noreturn));
3965static void help(void)
3966{
3967 _usage(stdout);
3968 exit(0);
3969}
3970
3971static void usage(void) __attribute__((noreturn));
3972static void usage(void)
3973{
3974 _usage(stderr);
aba5acdf
SH		 3975 exit(-1);
3976}
3977
3978
d1f28cf1 3979static int scan_state(const char *state)
aba5acdf 3980{
b710a722
PS		 3981 static const char * const sstate_namel[] = {
3982 "UNKNOWN",
3983 [SS_ESTABLISHED] = "established",
3984 [SS_SYN_SENT] = "syn-sent",
3985 [SS_SYN_RECV] = "syn-recv",
3986 [SS_FIN_WAIT1] = "fin-wait-1",
3987 [SS_FIN_WAIT2] = "fin-wait-2",
3988 [SS_TIME_WAIT] = "time-wait",
3989 [SS_CLOSE] = "unconnected",
3990 [SS_CLOSE_WAIT] = "close-wait",
3991 [SS_LAST_ACK] = "last-ack",
3992 [SS_LISTEN] = "listening",
3993 [SS_CLOSING] = "closing",
3994 };
aba5acdf 3995 int i;
acd1e437 3996
aba5acdf
SH		 3997 if (strcasecmp(state, "close") == 0 ||
3998 strcasecmp(state, "closed") == 0)
3999 return (1<<SS_CLOSE);
4000 if (strcasecmp(state, "syn-rcv") == 0)
4001 return (1<<SS_SYN_RECV);
1a5bad5a 4002 if (strcasecmp(state, "established") == 0)
aba5acdf
SH		 4003 return (1<<SS_ESTABLISHED);
4004 if (strcasecmp(state, "all") == 0)
4005 return SS_ALL;
4006 if (strcasecmp(state, "connected") == 0)
4007 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN));
1a5bad5a 4008 if (strcasecmp(state, "synchronized") == 0)
aba5acdf
SH		 4009 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT));
4010 if (strcasecmp(state, "bucket") == 0)
4011 return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT);
4012 if (strcasecmp(state, "big") == 0)
4013 return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT));
acd1e437 4014 for (i = 0; i < SS_MAX; i++) {
1a5bad5a 4015 if (strcasecmp(state, sstate_namel[i]) == 0)
aba5acdf
SH		 4016 return (1<<i);
4017 }
9db7bf15
VK		 4018
4019 fprintf(stderr, "ss: wrong state name: %s\n", state);
4020 exit(-1);
aba5acdf
SH		 4021}
4022
ab61159a
SH		 4023static const struct option long_opts[] = {
4024 { "numeric", 0, 0, 'n' },
4025 { "resolve", 0, 0, 'r' },
4026 { "options", 0, 0, 'o' },
4027 { "extended", 0, 0, 'e' },
4028 { "memory", 0, 0, 'm' },
4029 { "info", 0, 0, 'i' },
4030 { "processes", 0, 0, 'p' },
372c30d2 4031 { "bpf", 0, 0, 'b' },
6885e3bf 4032 { "events", 0, 0, 'E' },
351efcde 4033 { "dccp", 0, 0, 'd' },
ab61159a 4034 { "tcp", 0, 0, 't' },
f89d46ad 4035 { "sctp", 0, 0, 'S' },
ab61159a
SH		 4036 { "udp", 0, 0, 'u' },
4037 { "raw", 0, 0, 'w' },
4038 { "unix", 0, 0, 'x' },
4039 { "all", 0, 0, 'a' },
4040 { "listening", 0, 0, 'l' },
4041 { "ipv4", 0, 0, '4' },
4042 { "ipv6", 0, 0, '6' },
4043 { "packet", 0, 0, '0' },
4044 { "family", 1, 0, 'f' },
4045 { "socket", 1, 0, 'A' },
583de149 4046 { "query", 1, 0, 'A' },
c3f346b0 4047 { "summary", 0, 0, 's' },
583de149 4048 { "diag", 1, 0, 'D' },
ab61159a
SH		 4049 { "filter", 1, 0, 'F' },
4050 { "version", 0, 0, 'V' },
4051 { "help", 0, 0, 'h' },
116ac927
RH		 4052 { "context", 0, 0, 'Z' },
4053 { "contexts", 0, 0, 'z' },
95ce04bc 4054 { "net", 1, 0, 'N' },
fb2594c1 4055 { "kill", 0, 0, 'K' },
7a4559f6 4056 { "no-header", 0, 0, 'H' },
ab61159a 4057 { 0 }
ae665a52 4058
ab61159a
SH		 4059};
4060
aba5acdf
SH		 4061int main(int argc, char *argv[])
4062{
aba5acdf
SH		 4063 int saw_states = 0;
4064 int saw_query = 0;
4065 int do_summary = 0;
7d105b56 4066 const char *dump_tcpdiag = NULL;
aba5acdf
SH		 4067 FILE *filter_fp = NULL;
4068 int ch;
9db7bf15 4069 int state_filter = 0;
95eafe43 4070 int addrp_width, screen_width = 80;
aba5acdf 4071
168d97f9
SH		 4072 while ((ch = getopt_long(argc, argv,
4073 "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHS",
ab61159a 4074 long_opts, NULL)) != EOF) {
acd1e437 4075 switch (ch) {
aba5acdf
SH		 4076 case 'n':
4077 resolve_services = 0;
4078 break;
4079 case 'r':
4080 resolve_hosts = 1;
4081 break;
4082 case 'o':
4083 show_options = 1;
4084 break;
4085 case 'e':
4086 show_options = 1;
4087 show_details++;
4088 break;
4089 case 'm':
4090 show_mem = 1;
4091 break;
4092 case 'i':
4093 show_tcpinfo = 1;
4094 break;
4095 case 'p':
4096 show_users++;
fbc0f876 4097 user_ent_hash_build();
aba5acdf 4098 break;
372c30d2
ND		 4099 case 'b':
4100 show_options = 1;
4101 show_bpf++;
4102 break;
6885e3bf
CG		 4103 case 'E':
4104 follow_events = 1;
4105 break;
351efcde 4106 case 'd':
57ff5a10 4107 filter_db_set(&current_filter, DCCP_DB);
351efcde 4108 break;
aba5acdf 4109 case 't':
57ff5a10 4110 filter_db_set(&current_filter, TCP_DB);
aba5acdf 4111 break;
f89d46ad
PS		 4112 case 'S':
4113 filter_db_set(&current_filter, SCTP_DB);
4114 break;
aba5acdf 4115 case 'u':
57ff5a10 4116 filter_db_set(&current_filter, UDP_DB);
aba5acdf
SH		 4117 break;
4118 case 'w':
57ff5a10 4119 filter_db_set(&current_filter, RAW_DB);
aba5acdf
SH		 4120 break;
4121 case 'x':
9db7bf15 4122 filter_af_set(&current_filter, AF_UNIX);
aba5acdf
SH		 4123 break;
4124 case 'a':
9db7bf15 4125 state_filter = SS_ALL;
aba5acdf
SH		 4126 break;
4127 case 'l':
9db7bf15 4128 state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE);
aba5acdf
SH		 4129 break;
4130 case '4':
9db7bf15 4131 filter_af_set(&current_filter, AF_INET);
aba5acdf
SH		 4132 break;
4133 case '6':
9db7bf15 4134 filter_af_set(&current_filter, AF_INET6);
aba5acdf
SH		 4135 break;
4136 case '0':
9db7bf15 4137 filter_af_set(&current_filter, AF_PACKET);
aba5acdf
SH		 4138 break;
4139 case 'f':
4140 if (strcmp(optarg, "inet") == 0)
9db7bf15 4141 filter_af_set(&current_filter, AF_INET);
aba5acdf 4142 else if (strcmp(optarg, "inet6") == 0)
9db7bf15 4143 filter_af_set(&current_filter, AF_INET6);
aba5acdf 4144 else if (strcmp(optarg, "link") == 0)
9db7bf15 4145 filter_af_set(&current_filter, AF_PACKET);
aba5acdf 4146 else if (strcmp(optarg, "unix") == 0)
9db7bf15 4147 filter_af_set(&current_filter, AF_UNIX);
aba5acdf 4148 else if (strcmp(optarg, "netlink") == 0)
9db7bf15 4149 filter_af_set(&current_filter, AF_NETLINK);
aba5acdf 4150 else if (strcmp(optarg, "help") == 0)
7a96e199 4151 help();
aba5acdf 4152 else {
9db7bf15
VK		 4153 fprintf(stderr, "ss: \"%s\" is invalid family\n",
4154 optarg);
aba5acdf
SH		 4155 usage();
4156 }
4157 break;
4158 case 'A':
4159 {
4160 char *p, *p1;
acd1e437 4161
aba5acdf
SH		 4162 if (!saw_query) {
4163 current_filter.dbs = 0;
7f9dddbe 4164 state_filter = state_filter ?
acd1e437 4165 state_filter : SS_CONN;
aba5acdf
SH		 4166 saw_query = 1;
4167 do_default = 0;
4168 }
4169 p = p1 = optarg;
4170 do {
4171 if ((p1 = strchr(p, ',')) != NULL)
ae665a52 4172 *p1 = 0;
aba5acdf 4173 if (strcmp(p, "all") == 0) {
57ff5a10 4174 filter_default_dbs(&current_filter);
aba5acdf 4175 } else if (strcmp(p, "inet") == 0) {
57ff5a10
VK		 4176 filter_db_set(&current_filter, UDP_DB);
4177 filter_db_set(&current_filter, DCCP_DB);
4178 filter_db_set(&current_filter, TCP_DB);
f89d46ad 4179 filter_db_set(&current_filter, SCTP_DB);
57ff5a10 4180 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4181 } else if (strcmp(p, "udp") == 0) {
57ff5a10 4182 filter_db_set(&current_filter, UDP_DB);
351efcde 4183 } else if (strcmp(p, "dccp") == 0) {
57ff5a10 4184 filter_db_set(&current_filter, DCCP_DB);
aba5acdf 4185 } else if (strcmp(p, "tcp") == 0) {
57ff5a10 4186 filter_db_set(&current_filter, TCP_DB);
f89d46ad
PS		 4187 } else if (strcmp(p, "sctp") == 0) {
4188 filter_db_set(&current_filter, SCTP_DB);
aba5acdf 4189 } else if (strcmp(p, "raw") == 0) {
57ff5a10 4190 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4191 } else if (strcmp(p, "unix") == 0) {
57ff5a10
VK		 4192 filter_db_set(&current_filter, UNIX_ST_DB);
4193 filter_db_set(&current_filter, UNIX_DG_DB);
4194 filter_db_set(&current_filter, UNIX_SQ_DB);
1a5bad5a 4195 } else if (strcasecmp(p, "unix_stream") == 0 ||
aba5acdf 4196 strcmp(p, "u_str") == 0) {
57ff5a10 4197 filter_db_set(&current_filter, UNIX_ST_DB);
1a5bad5a 4198 } else if (strcasecmp(p, "unix_dgram") == 0 ||
aba5acdf 4199 strcmp(p, "u_dgr") == 0) {
57ff5a10 4200 filter_db_set(&current_filter, UNIX_DG_DB);
30b669d7
MY		 4201 } else if (strcasecmp(p, "unix_seqpacket") == 0 ||
4202 strcmp(p, "u_seq") == 0) {
57ff5a10 4203 filter_db_set(&current_filter, UNIX_SQ_DB);
aba5acdf 4204 } else if (strcmp(p, "packet") == 0) {
57ff5a10
VK		 4205 filter_db_set(&current_filter, PACKET_R_DB);
4206 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf
SH		 4207 } else if (strcmp(p, "packet_raw") == 0 ||
4208 strcmp(p, "p_raw") == 0) {
57ff5a10 4209 filter_db_set(&current_filter, PACKET_R_DB);
aba5acdf
SH		 4210 } else if (strcmp(p, "packet_dgram") == 0 ||
4211 strcmp(p, "p_dgr") == 0) {
57ff5a10 4212 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf 4213 } else if (strcmp(p, "netlink") == 0) {
57ff5a10 4214 filter_db_set(&current_filter, NETLINK_DB);
aba5acdf
SH		 4215 } else {
4216 fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p);
4217 usage();
4218 }
4219 p = p1 + 1;
4220 } while (p1);
4221 break;
4222 }
4223 case 's':
4224 do_summary = 1;
4225 break;
4226 case 'D':
4227 dump_tcpdiag = optarg;
4228 break;
4229 case 'F':
4230 if (filter_fp) {
4231 fprintf(stderr, "More than one filter file\n");
4232 exit(-1);
4233 }
4234 if (optarg[0] == '-')
4235 filter_fp = stdin;
4236 else
4237 filter_fp = fopen(optarg, "r");
4238 if (!filter_fp) {
4239 perror("fopen filter file");
4240 exit(-1);
4241 }
4242 break;
4243 case 'v':
4244 case 'V':
4245 printf("ss utility, iproute2-ss%s\n", SNAPSHOT);
4246 exit(0);
116ac927
RH		 4247 case 'z':
4248 show_sock_ctx++;
36df1a6e 4249 /* fall through */
116ac927
RH		 4250 case 'Z':
4251 if (is_selinux_enabled() <= 0) {
4252 fprintf(stderr, "ss: SELinux is not enabled.\n");
4253 exit(1);
4254 }
4255 show_proc_ctx++;
4256 user_ent_hash_build();
4257 break;
95ce04bc
VK		 4258 case 'N':
4259 if (netns_switch(optarg))
4260 exit(1);
4261 break;
fb2594c1
LC		 4262 case 'K':
4263 current_filter.kill = 1;
4264 break;
7a4559f6
DA		 4265 case 'H':
4266 show_header = 0;
4267 break;
aba5acdf 4268 case 'h':
7a96e199 4269 help();
f73105ab 4270 case '?':
aba5acdf
SH		 4271 default:
4272 usage();
4273 }
4274 }
4275
4276 argc -= optind;
4277 argv += optind;
4278
aba5acdf
SH		 4279 if (do_summary) {
4280 print_summary();
4281 if (do_default && argc == 0)
4282 exit(0);
4283 }
4284
aba5acdf
SH		 4285 while (argc > 0) {
4286 if (strcmp(*argv, "state") == 0) {
4287 NEXT_ARG();
4288 if (!saw_states)
9db7bf15
VK		 4289 state_filter = 0;
4290 state_filter |= scan_state(*argv);
aba5acdf
SH		 4291 saw_states = 1;
4292 } else if (strcmp(*argv, "exclude") == 0 ||
4293 strcmp(*argv, "excl") == 0) {
4294 NEXT_ARG();
4295 if (!saw_states)
9db7bf15
VK		 4296 state_filter = SS_ALL;
4297 state_filter &= ~scan_state(*argv);
aba5acdf
SH		 4298 saw_states = 1;
4299 } else {
aba5acdf
SH		 4300 break;
4301 }
4302 argc--; argv++;
4303 }
4304
9db7bf15
VK		 4305 if (do_default) {
4306 state_filter = state_filter ? state_filter : SS_CONN;
4307 filter_default_dbs(&current_filter);
9db7bf15
VK		 4308 }
4309
57ff5a10
VK		 4310 filter_states_set(&current_filter, state_filter);
4311 filter_merge_defaults(&current_filter);
4312
9db7bf15 4313 if (resolve_services && resolve_hosts &&
168d97f9 4314 (current_filter.dbs & (UNIX_DBM|INET_L4_DBM)))
9db7bf15
VK		 4315 init_service_resolver();
4316
9db7bf15
VK		 4317 if (current_filter.dbs == 0) {
4318 fprintf(stderr, "ss: no socket tables to show with such filter.\n");
4319 exit(0);
4320 }
4321 if (current_filter.families == 0) {
4322 fprintf(stderr, "ss: no families to show with such filter.\n");
4323 exit(0);
4324 }
aba5acdf
SH		 4325 if (current_filter.states == 0) {
4326 fprintf(stderr, "ss: no socket states to show with such filter.\n");
4327 exit(0);
4328 }
4329
4330 if (dump_tcpdiag) {
4331 FILE *dump_fp = stdout;
acd1e437 4332
aba5acdf
SH		 4333 if (!(current_filter.dbs & (1<<TCP_DB))) {
4334 fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n");
4335 exit(0);
4336 }
4337 if (dump_tcpdiag[0] != '-') {
4338 dump_fp = fopen(dump_tcpdiag, "w");
4339 if (!dump_tcpdiag) {
4340 perror("fopen dump file");
4341 exit(-1);
4342 }
4343 }
3fe5b534 4344 inet_show_netlink(&current_filter, dump_fp, IPPROTO_TCP);
aba5acdf
SH		 4345 fflush(dump_fp);
4346 exit(0);
4347 }
4348
1527a17e
VK		 4349 if (ssfilter_parse(&current_filter.f, argc, argv, filter_fp))
4350 usage();
4351
aba5acdf
SH		 4352 netid_width = 0;
4353 if (current_filter.dbs&(current_filter.dbs-1))
4354 netid_width = 5;
4355
4356 state_width = 0;
4357 if (current_filter.states&(current_filter.states-1))
4358 state_width = 10;
4359
aba5acdf
SH		 4360 if (isatty(STDOUT_FILENO)) {
4361 struct winsize w;
4362
4363 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) {
4364 if (w.ws_col > 0)
4365 screen_width = w.ws_col;
4366 }
4367 }
4368
4369 addrp_width = screen_width;
4370 addrp_width -= netid_width+1;
4371 addrp_width -= state_width+1;
4372 addrp_width -= 14;
4373
4374 if (addrp_width&1) {
4375 if (netid_width)
4376 netid_width++;
4377 else if (state_width)
4378 state_width++;
4379 }
4380
4381 addrp_width /= 2;
4382 addrp_width--;
4383
4384 serv_width = resolve_services ? 7 : 5;
4385
4386 if (addrp_width < 15+serv_width+1)
4387 addrp_width = 15+serv_width+1;
4388
ae665a52 4389 addr_width = addrp_width - serv_width - 1;
aba5acdf 4390
7a4559f6
DA		 4391 if (show_header) {
4392 if (netid_width)
4393 printf("%-*s ", netid_width, "Netid");
4394 if (state_width)
4395 printf("%-*s ", state_width, "State");
4396 printf("%-6s %-6s ", "Recv-Q", "Send-Q");
4397 }
aba5acdf 4398
d68e00f7 4399 /* Make enough space for the local/remote port field */
4400 addr_width -= 13;
4401 serv_width += 13;
2dc85485 4402
7a4559f6
DA		 4403 if (show_header) {
4404 printf("%*s:%-*s %*s:%-*s\n",
4405 addr_width, "Local Address", serv_width, "Port",
4406 addr_width, "Peer Address", serv_width, "Port");
4407 }
aba5acdf 4408
aba5acdf
SH		 4409 fflush(stdout);
4410
6885e3bf
CG		 4411 if (follow_events)
4412 exit(handle_follow_request(&current_filter));
4413
aba5acdf
SH		 4414 if (current_filter.dbs & (1<<NETLINK_DB))
4415 netlink_show(&current_filter);
4416 if (current_filter.dbs & PACKET_DBM)
4417 packet_show(&current_filter);
4418 if (current_filter.dbs & UNIX_DBM)
4419 unix_show(&current_filter);
4420 if (current_filter.dbs & (1<<RAW_DB))
4421 raw_show(&current_filter);
4422 if (current_filter.dbs & (1<<UDP_DB))
4423 udp_show(&current_filter);
4424 if (current_filter.dbs & (1<<TCP_DB))
6c6bbc30 4425 tcp_show(&current_filter);
351efcde 4426 if (current_filter.dbs & (1<<DCCP_DB))
6c6bbc30 4427 dccp_show(&current_filter);
f89d46ad
PS		 4428 if (current_filter.dbs & (1<<SCTP_DB))
4429 sctp_show(&current_filter);
116ac927
RH		 4430
4431 if (show_users || show_proc_ctx || show_sock_ctx)
4432 user_ent_destroy();
4433
aba5acdf
SH		 4434 return 0;
4435}
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