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ss: allow AF_FAMILY constants >32
[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;
b338a3e7 173 uint64_t families;
aba5acdf 174 struct ssfilter *f;
fb2594c1 175 bool kill;
aba5acdf
SH		 176};
177
b338a3e7
SH		 178#define FAMILY_MASK(family) ((uint64_t)1 << (family))
179
9db7bf15
VK		 180static const struct filter default_dbs[MAX_DB] = {
181 [TCP_DB] = {
182 .states = SS_CONN,
b338a3e7 183 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 184 },
185 [DCCP_DB] = {
186 .states = SS_CONN,
b338a3e7 187 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 188 },
189 [UDP_DB] = {
f42a4574 190 .states = (1 << SS_ESTABLISHED),
b338a3e7 191 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 192 },
193 [RAW_DB] = {
f42a4574 194 .states = (1 << SS_ESTABLISHED),
b338a3e7 195 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 196 },
197 [UNIX_DG_DB] = {
198 .states = (1 << SS_CLOSE),
b338a3e7 199 .families = FAMILY_MASK(AF_UNIX),
9db7bf15
VK		 200 },
201 [UNIX_ST_DB] = {
202 .states = SS_CONN,
b338a3e7 203 .families = FAMILY_MASK(AF_UNIX),
9db7bf15
VK		 204 },
205 [UNIX_SQ_DB] = {
206 .states = SS_CONN,
b338a3e7 207 .families = FAMILY_MASK(AF_UNIX),
9db7bf15
VK		 208 },
209 [PACKET_DG_DB] = {
210 .states = (1 << SS_CLOSE),
b338a3e7 211 .families = FAMILY_MASK(AF_PACKET),
9db7bf15
VK		 212 },
213 [PACKET_R_DB] = {
214 .states = (1 << SS_CLOSE),
b338a3e7 215 .families = FAMILY_MASK(AF_PACKET),
9db7bf15
VK		 216 },
217 [NETLINK_DB] = {
218 .states = (1 << SS_CLOSE),
b338a3e7 219 .families = FAMILY_MASK(AF_NETLINK),
9db7bf15 220 },
f89d46ad
PS		 221 [SCTP_DB] = {
222 .states = SS_CONN,
b338a3e7 223 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
f89d46ad 224 },
aba5acdf
SH		 225};
226
9db7bf15
VK		 227static const struct filter default_afs[AF_MAX] = {
228 [AF_INET] = {
229 .dbs = INET_DBM,
230 .states = SS_CONN,
231 },
232 [AF_INET6] = {
233 .dbs = INET_DBM,
234 .states = SS_CONN,
235 },
236 [AF_UNIX] = {
237 .dbs = UNIX_DBM,
238 .states = SS_CONN,
239 },
240 [AF_PACKET] = {
241 .dbs = PACKET_DBM,
242 .states = (1 << SS_CLOSE),
243 },
244 [AF_NETLINK] = {
245 .dbs = (1 << NETLINK_DB),
246 .states = (1 << SS_CLOSE),
247 },
248};
249
250static int do_default = 1;
251static struct filter current_filter;
252
253static void filter_db_set(struct filter *f, int db)
254{
255 f->states |= default_dbs[db].states;
9db7bf15
VK		 256 f->dbs |= 1 << db;
257 do_default = 0;
258}
259
260static void filter_af_set(struct filter *f, int af)
261{
1527a17e 262 f->states |= default_afs[af].states;
b338a3e7 263 f->families |= FAMILY_MASK(af);
1527a17e
VK		 264 do_default = 0;
265 preferred_family = af;
9db7bf15
VK		 266}
267
268static int filter_af_get(struct filter *f, int af)
269{
b338a3e7 270 return !!(f->families & FAMILY_MASK(af));
9db7bf15
VK		 271}
272
273static void filter_default_dbs(struct filter *f)
274{
275 filter_db_set(f, UDP_DB);
276 filter_db_set(f, DCCP_DB);
277 filter_db_set(f, TCP_DB);
278 filter_db_set(f, RAW_DB);
279 filter_db_set(f, UNIX_ST_DB);
280 filter_db_set(f, UNIX_DG_DB);
281 filter_db_set(f, UNIX_SQ_DB);
282 filter_db_set(f, PACKET_R_DB);
283 filter_db_set(f, PACKET_DG_DB);
284 filter_db_set(f, NETLINK_DB);
f89d46ad 285 filter_db_set(f, SCTP_DB);
9db7bf15
VK		 286}
287
57ff5a10 288static void filter_states_set(struct filter *f, int states)
9db7bf15 289{
57ff5a10 290 if (states)
9d320e1e 291 f->states = states;
57ff5a10 292}
9db7bf15 293
57ff5a10
VK		 294static void filter_merge_defaults(struct filter *f)
295{
296 int db;
297 int af;
9db7bf15 298
57ff5a10
VK		 299 for (db = 0; db < MAX_DB; db++) {
300 if (!(f->dbs & (1 << db)))
301 continue;
9db7bf15 302
57ff5a10
VK		 303 if (!(default_dbs[db].families & f->families))
304 f->families |= default_dbs[db].families;
305 }
306 for (af = 0; af < AF_MAX; af++) {
b338a3e7 307 if (!(f->families & FAMILY_MASK(af)))
57ff5a10
VK		 308 continue;
309
310 if (!(default_afs[af].dbs & f->dbs))
311 f->dbs |= default_afs[af].dbs;
312 }
9db7bf15 313}
aba5acdf 314
ab01dbbb 315static FILE *generic_proc_open(const char *env, const char *name)
aba5acdf 316{
ab01dbbb 317 const char *p = getenv(env);
aba5acdf 318 char store[128];
ab01dbbb 319
aba5acdf
SH		 320 if (!p) {
321 p = getenv("PROC_ROOT") ? : "/proc";
322 snprintf(store, sizeof(store)-1, "%s/%s", p, name);
323 p = store;
324 }
ab01dbbb
SH		 325
326 return fopen(p, "r");
aba5acdf 327}
0cb74a86
PS		 328#define net_tcp_open() generic_proc_open("PROC_NET_TCP", "net/tcp")
329#define net_tcp6_open() generic_proc_open("PROC_NET_TCP6", "net/tcp6")
330#define net_udp_open() generic_proc_open("PROC_NET_UDP", "net/udp")
331#define net_udp6_open() generic_proc_open("PROC_NET_UDP6", "net/udp6")
332#define net_raw_open() generic_proc_open("PROC_NET_RAW", "net/raw")
333#define net_raw6_open() generic_proc_open("PROC_NET_RAW6", "net/raw6")
334#define net_unix_open() generic_proc_open("PROC_NET_UNIX", "net/unix")
335#define net_packet_open() generic_proc_open("PROC_NET_PACKET", \
336 "net/packet")
337#define net_netlink_open() generic_proc_open("PROC_NET_NETLINK", \
338 "net/netlink")
339#define slabinfo_open() generic_proc_open("PROC_SLABINFO", "slabinfo")
340#define net_sockstat_open() generic_proc_open("PROC_NET_SOCKSTAT", \
341 "net/sockstat")
342#define net_sockstat6_open() generic_proc_open("PROC_NET_SOCKSTAT6", \
343 "net/sockstat6")
344#define net_snmp_open() generic_proc_open("PROC_NET_SNMP", "net/snmp")
345#define ephemeral_ports_open() generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", \
346 "sys/net/ipv4/ip_local_port_range")
aba5acdf 347
fbc0f876
SF		 348struct user_ent {
349 struct user_ent *next;
350 unsigned int ino;
351 int pid;
352 int fd;
116ac927
RH		 353 char *process;
354 char *process_ctx;
355 char *socket_ctx;
fbc0f876
SF		 356};
357
358#define USER_ENT_HASH_SIZE 256
359struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE];
360
361static int user_ent_hashfn(unsigned int ino)
aba5acdf 362{
fbc0f876 363 int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino;
aba5acdf 364
fbc0f876
SF		 365 return val & (USER_ENT_HASH_SIZE - 1);
366}
367
116ac927
RH		 368static void user_ent_add(unsigned int ino, char *process,
369 int pid, int fd,
370 char *proc_ctx,
371 char *sock_ctx)
fbc0f876
SF		 372{
373 struct user_ent *p, **pp;
aba5acdf 374
116ac927
RH		 375 p = malloc(sizeof(struct user_ent));
376 if (!p) {
377 fprintf(stderr, "ss: failed to malloc buffer\n");
fbc0f876 378 abort();
116ac927 379 }
fbc0f876
SF		 380 p->next = NULL;
381 p->ino = ino;
382 p->pid = pid;
383 p->fd = fd;
116ac927
RH		 384 p->process = strdup(process);
385 p->process_ctx = strdup(proc_ctx);
386 p->socket_ctx = strdup(sock_ctx);
fbc0f876
SF		 387
388 pp = &user_ent_hash[user_ent_hashfn(ino)];
389 p->next = *pp;
390 *pp = p;
391}
aba5acdf 392
116ac927
RH		 393static void user_ent_destroy(void)
394{
395 struct user_ent *p, *p_next;
396 int cnt = 0;
397
398 while (cnt != USER_ENT_HASH_SIZE) {
399 p = user_ent_hash[cnt];
400 while (p) {
401 free(p->process);
402 free(p->process_ctx);
403 free(p->socket_ctx);
404 p_next = p->next;
405 free(p);
406 p = p_next;
407 }
408 cnt++;
409 }
410}
411
fbc0f876
SF		 412static void user_ent_hash_build(void)
413{
414 const char *root = getenv("PROC_ROOT") ? : "/proc/";
415 struct dirent *d;
416 char name[1024];
417 int nameoff;
418 DIR *dir;
116ac927
RH		 419 char *pid_context;
420 char *sock_context;
421 const char *no_ctx = "unavailable";
b25bad2f 422 static int user_ent_hash_build_init;
116ac927
RH		 423
424 /* If show_users & show_proc_ctx set only do this once */
425 if (user_ent_hash_build_init != 0)
426 return;
427
428 user_ent_hash_build_init = 1;
fbc0f876 429
18f156bf 430 strlcpy(name, root, sizeof(name));
0ee9052f 431
fbc0f876 432 if (strlen(name) == 0 || name[strlen(name)-1] != '/')
aba5acdf 433 strcat(name, "/");
fbc0f876 434
aba5acdf 435 nameoff = strlen(name);
fbc0f876
SF		 436
437 dir = opendir(name);
438 if (!dir)
439 return;
aba5acdf
SH		 440
441 while ((d = readdir(dir)) != NULL) {
aba5acdf 442 struct dirent *d1;
aba5acdf 443 char process[16];
116ac927 444 char *p;
fbc0f876
SF		 445 int pid, pos;
446 DIR *dir1;
447 char crap;
aba5acdf
SH		 448
449 if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1)
450 continue;
451
116ac927
RH		 452 if (getpidcon(pid, &pid_context) != 0)
453 pid_context = strdup(no_ctx);
454
0ee9052f 455 snprintf(name + nameoff, sizeof(name) - nameoff, "%d/fd/", pid);
aba5acdf 456 pos = strlen(name);
a02371fb
PS		 457 if ((dir1 = opendir(name)) == NULL) {
458 free(pid_context);
aba5acdf 459 continue;
a02371fb 460 }
aba5acdf 461
fbc0f876 462 process[0] = '\0';
116ac927 463 p = process;
aba5acdf
SH		 464
465 while ((d1 = readdir(dir1)) != NULL) {
fbc0f876
SF		 466 const char *pattern = "socket:[";
467 unsigned int ino;
aba5acdf 468 char lnk[64];
18445b3e 469 int fd;
788731b3 470 ssize_t link_len;
116ac927 471 char tmp[1024];
aba5acdf
SH		 472
473 if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1)
474 continue;
475
0ee9052f 476 snprintf(name+pos, sizeof(name) - pos, "%d", fd);
788731b3
TJ		 477
478 link_len = readlink(name, lnk, sizeof(lnk)-1);
479 if (link_len == -1)
480 continue;
481 lnk[link_len] = '\0';
482
483 if (strncmp(lnk, pattern, strlen(pattern)))
aba5acdf
SH		 484 continue;
485
fbc0f876 486 sscanf(lnk, "socket:[%u]", &ino);
aba5acdf 487
116ac927
RH		 488 snprintf(tmp, sizeof(tmp), "%s/%d/fd/%s",
489 root, pid, d1->d_name);
490
491 if (getfilecon(tmp, &sock_context) <= 0)
492 sock_context = strdup(no_ctx);
493
494 if (*p == '\0') {
aba5acdf 495 FILE *fp;
fbc0f876 496
116ac927
RH		 497 snprintf(tmp, sizeof(tmp), "%s/%d/stat",
498 root, pid);
aba5acdf 499 if ((fp = fopen(tmp, "r")) != NULL) {
d572ed4d
PS		 500 if (fscanf(fp, "%*d (%[^)])", p) < 1)
501 ; /* ignore */
aba5acdf
SH		 502 fclose(fp);
503 }
504 }
116ac927
RH		 505 user_ent_add(ino, p, pid, fd,
506 pid_context, sock_context);
507 free(sock_context);
aba5acdf 508 }
116ac927 509 free(pid_context);
aba5acdf
SH		 510 closedir(dir1);
511 }
512 closedir(dir);
fbc0f876
SF		 513}
514
116ac927
RH		 515enum entry_types {
516 USERS,
517 PROC_CTX,
518 PROC_SOCK_CTX
519};
520
521#define ENTRY_BUF_SIZE 512
acd1e437 522static int find_entry(unsigned int ino, char **buf, int type)
fbc0f876
SF		 523{
524 struct user_ent *p;
525 int cnt = 0;
526 char *ptr;
532ca40a 527 char *new_buf;
116ac927
RH		 528 int len, new_buf_len;
529 int buf_used = 0;
530 int buf_len = 0;
fbc0f876
SF		 531
532 if (!ino)
533 return 0;
534
535 p = user_ent_hash[user_ent_hashfn(ino)];
116ac927 536 ptr = *buf = NULL;
fbc0f876
SF		 537 while (p) {
538 if (p->ino != ino)
539 goto next;
540
116ac927
RH		 541 while (1) {
542 ptr = *buf + buf_used;
543 switch (type) {
544 case USERS:
545 len = snprintf(ptr, buf_len - buf_used,
546 "(\"%s\",pid=%d,fd=%d),",
547 p->process, p->pid, p->fd);
548 break;
549 case PROC_CTX:
550 len = snprintf(ptr, buf_len - buf_used,
551 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),",
552 p->process, p->pid,
553 p->process_ctx, p->fd);
554 break;
555 case PROC_SOCK_CTX:
556 len = snprintf(ptr, buf_len - buf_used,
557 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),",
558 p->process, p->pid,
559 p->process_ctx, p->fd,
560 p->socket_ctx);
561 break;
562 default:
563 fprintf(stderr, "ss: invalid type: %d\n", type);
564 abort();
565 }
fbc0f876 566
116ac927
RH		 567 if (len < 0 || len >= buf_len - buf_used) {
568 new_buf_len = buf_len + ENTRY_BUF_SIZE;
532ca40a 569 new_buf = realloc(*buf, new_buf_len);
116ac927
RH		 570 if (!new_buf) {
571 fprintf(stderr, "ss: failed to malloc buffer\n");
572 abort();
573 }
532ca40a 574 *buf = new_buf;
116ac927
RH		 575 buf_len = new_buf_len;
576 continue;
577 } else {
578 buf_used += len;
579 break;
580 }
581 }
fbc0f876 582 cnt++;
116ac927 583next:
fbc0f876
SF		 584 p = p->next;
585 }
116ac927
RH		 586 if (buf_used) {
587 ptr = *buf + buf_used;
fbc0f876 588 ptr[-1] = '\0';
116ac927 589 }
aba5acdf
SH		 590 return cnt;
591}
592
aba5acdf
SH		 593/* Get stats from slab */
594
acd1e437 595struct slabstat {
aba5acdf
SH		 596 int socks;
597 int tcp_ports;
598 int tcp_tws;
599 int tcp_syns;
600 int skbs;
601};
602
a221d621 603static struct slabstat slabstat;
aba5acdf 604
d1f28cf1 605static int get_slabstat(struct slabstat *s)
aba5acdf
SH		 606{
607 char buf[256];
608 FILE *fp;
609 int cnt;
a221d621 610 static int slabstat_valid;
b3535dd6
PS		 611 static const char * const slabstat_ids[] = {
612 "sock",
613 "tcp_bind_bucket",
614 "tcp_tw_bucket",
615 "tcp_open_request",
616 "skbuff_head_cache",
617 };
a221d621
BL		 618
619 if (slabstat_valid)
620 return 0;
aba5acdf
SH		 621
622 memset(s, 0, sizeof(*s));
623
ab01dbbb
SH		 624 fp = slabinfo_open();
625 if (!fp)
aba5acdf
SH		 626 return -1;
627
628 cnt = sizeof(*s)/sizeof(int);
629
d572ed4d
PS		 630 if (!fgets(buf, sizeof(buf), fp)) {
631 fclose(fp);
632 return -1;
633 }
acd1e437 634 while (fgets(buf, sizeof(buf), fp) != NULL) {
aba5acdf 635 int i;
acd1e437 636
62000e51 637 for (i = 0; i < ARRAY_SIZE(slabstat_ids); i++) {
aba5acdf
SH		 638 if (memcmp(buf, slabstat_ids[i], strlen(slabstat_ids[i])) == 0) {
639 sscanf(buf, "%*s%d", ((int *)s) + i);
640 cnt--;
641 break;
642 }
643 }
644 if (cnt <= 0)
645 break;
646 }
647
a221d621
BL		 648 slabstat_valid = 1;
649
aba5acdf
SH		 650 fclose(fp);
651 return 0;
652}
653
2e7e805d 654static unsigned long long cookie_sk_get(const uint32_t *cookie)
f1b39e1b 655{
2e7e805d 656 return (((unsigned long long)cookie[1] << 31) << 1) | cookie[0];
f1b39e1b
VK		 657}
658
f89d46ad
PS		 659static const char *sctp_sstate_name[] = {
660 [SCTP_STATE_CLOSED] = "CLOSED",
661 [SCTP_STATE_COOKIE_WAIT] = "COOKIE_WAIT",
662 [SCTP_STATE_COOKIE_ECHOED] = "COOKIE_ECHOED",
663 [SCTP_STATE_ESTABLISHED] = "ESTAB",
664 [SCTP_STATE_SHUTDOWN_PENDING] = "SHUTDOWN_PENDING",
665 [SCTP_STATE_SHUTDOWN_SENT] = "SHUTDOWN_SENT",
666 [SCTP_STATE_SHUTDOWN_RECEIVED] = "SHUTDOWN_RECEIVED",
667 [SCTP_STATE_SHUTDOWN_ACK_SENT] = "ACK_SENT",
668};
669
acd1e437 670struct sockstat {
ec4d0d8a
VK		 671 struct sockstat *next;
672 unsigned int type;
89f634f9 673 uint16_t prot;
41fe6c34 674 uint16_t raw_prot;
8250bc9f
VK		 675 inet_prefix local;
676 inet_prefix remote;
677 int lport;
678 int rport;
679 int state;
680 int rq, wq;
acd1e437
SH		 681 unsigned int ino;
682 unsigned int uid;
8250bc9f
VK		 683 int refcnt;
684 unsigned int iface;
685 unsigned long long sk;
99bb68ff
VK		 686 char *name;
687 char *peer_name;
ec75249b 688 __u32 mark;
055840f2
VK		 689};
690
acd1e437 691struct dctcpstat {
055840f2
VK		 692 unsigned int ce_state;
693 unsigned int alpha;
694 unsigned int ab_ecn;
695 unsigned int ab_tot;
696 bool enabled;
697};
698
acd1e437 699struct tcpstat {
055840f2 700 struct sockstat ss;
4cbf5224
PS		 701 unsigned int timer;
702 unsigned int timeout;
8250bc9f 703 int probes;
d2055ea5 704 char cong_alg[16];
8250bc9f 705 double rto, ato, rtt, rttvar;
d1f338b3 706 int qack, ssthresh, backoff;
8250bc9f
VK		 707 double send_bps;
708 int snd_wscale;
709 int rcv_wscale;
710 int mss;
38e6dbc4
ED		 711 int rcv_mss;
712 int advmss;
d1f338b3 713 unsigned int cwnd;
8250bc9f
VK		 714 unsigned int lastsnd;
715 unsigned int lastrcv;
716 unsigned int lastack;
717 double pacing_rate;
718 double pacing_rate_max;
2f579872 719 double delivery_rate;
1a4dda71
ED		 720 unsigned long long bytes_acked;
721 unsigned long long bytes_received;
ecb435ea
CG		 722 unsigned int segs_out;
723 unsigned int segs_in;
414aeec9
MKL		 724 unsigned int data_segs_out;
725 unsigned int data_segs_in;
8250bc9f
VK		 726 unsigned int unacked;
727 unsigned int retrans;
728 unsigned int retrans_total;
729 unsigned int lost;
730 unsigned int sacked;
731 unsigned int fackets;
732 unsigned int reordering;
9e99e495 733 unsigned int not_sent;
8250bc9f 734 double rcv_rtt;
9e99e495 735 double min_rtt;
8250bc9f 736 int rcv_space;
b6c7fc61
YC		 737 unsigned long long busy_time;
738 unsigned long long rwnd_limited;
739 unsigned long long sndbuf_limited;
8250bc9f
VK		 740 bool has_ts_opt;
741 bool has_sack_opt;
742 bool has_ecn_opt;
743 bool has_ecnseen_opt;
744 bool has_fastopen_opt;
745 bool has_wscale_opt;
2f579872 746 bool app_limited;
8250bc9f 747 struct dctcpstat *dctcp;
2f0f9aef 748 struct tcp_bbr_info *bbr_info;
aba5acdf
SH		 749};
750
f89d46ad
PS		 751/* SCTP assocs share the same inode number with their parent endpoint. So if we
752 * have seen the inode number before, it must be an assoc instead of the next
753 * endpoint. */
754static bool is_sctp_assoc(struct sockstat *s, const char *sock_name)
755{
756 if (strcmp(sock_name, "sctp"))
757 return false;
758 if (!sctp_ino || sctp_ino != s->ino)
759 return false;
760 return true;
761}
762
be7e4d20
PS		 763static const char *unix_netid_name(int type)
764{
765 switch (type) {
766 case SOCK_STREAM:
767 return "u_str";
768 case SOCK_SEQPACKET:
769 return "u_seq";
770 case SOCK_DGRAM:
771 default:
772 return "u_dgr";
773 }
774}
775
776static const char *proto_name(int protocol)
2d791bc8 777{
be7e4d20
PS		 778 switch (protocol) {
779 case 0:
780 return "raw";
781 case IPPROTO_UDP:
782 return "udp";
783 case IPPROTO_TCP:
784 return "tcp";
785 case IPPROTO_SCTP:
786 return "sctp";
787 case IPPROTO_DCCP:
788 return "dccp";
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
b217df10 1046static void inet_addr_print(const inet_prefix *a, int port, unsigned int ifindex)
aba5acdf
SH		 1047{
1048 char buf[1024];
1049 const char *ap = buf;
b217df10
VK		 1050 int est_len = addr_width;
1051 const char *ifname = NULL;
aba5acdf
SH		 1052
1053 if (a->family == AF_INET) {
1054 if (a->data[0] == 0) {
1055 buf[0] = '*';
1056 buf[1] = 0;
1057 } else {
a418e451 1058 ap = format_host(AF_INET, 4, a->data);
aba5acdf
SH		 1059 }
1060 } else {
aba9c23a
SH		 1061 if (!memcmp(a->data, &in6addr_any, sizeof(in6addr_any))) {
1062 buf[0] = '*';
1063 buf[1] = 0;
1064 } else {
1065 ap = format_host(a->family, 16, a->data);
1066
1067 /* Numeric IPv6 addresses should be bracketed */
1068 if (strchr(ap, ':')) {
1069 snprintf(buf, sizeof(buf),
1070 "[%s]", ap);
1071 ap = buf;
1072 }
1073
1074 est_len = strlen(ap);
1075 if (est_len <= addr_width)
1076 est_len = addr_width;
1077 else
1078 est_len = addr_width + ((est_len-addr_width+3)/4)*4;
1079 }
aba5acdf 1080 }
b217df10 1081
7c8a3cfb 1082 if (ifindex) {
b217df10
VK		 1083 ifname = ll_index_to_name(ifindex);
1084 est_len -= strlen(ifname) + 1; /* +1 for percent char */
4fcfb6bc
MS		 1085 if (est_len < 0)
1086 est_len = 0;
b217df10 1087 }
7c8a3cfb 1088
b217df10
VK		 1089 sock_addr_print_width(est_len, ap, ":", serv_width, resolve_service(port),
1090 ifname);
aba5acdf
SH		 1091}
1092
acd1e437 1093struct aafilter {
aba5acdf
SH		 1094 inet_prefix addr;
1095 int port;
2d293212 1096 unsigned int iface;
ec75249b
LC		 1097 __u32 mark;
1098 __u32 mask;
aba5acdf
SH		 1099 struct aafilter *next;
1100};
1101
d1f28cf1
SH		 1102static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p,
1103 int plen)
aba5acdf
SH		 1104{
1105 if (!inet_addr_match(a, p, plen))
1106 return 0;
7d105b56 1107
aba5acdf
SH		 1108 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1109 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1110 * sockets. Fair? */
1111 if (p->family == AF_INET && a->family == AF_INET6) {
1112 if (a->data[0] == 0 && a->data[1] == 0 &&
1113 a->data[2] == htonl(0xffff)) {
1114 inet_prefix tmp = *a;
acd1e437 1115
aba5acdf
SH		 1116 tmp.data[0] = a->data[3];
1117 return inet_addr_match(&tmp, p, plen);
1118 }
1119 }
1120 return 1;
1121}
1122
d1f28cf1 1123static int unix_match(const inet_prefix *a, const inet_prefix *p)
aba5acdf 1124{
99bb68ff 1125 char *addr, *pattern;
acd1e437 1126
99bb68ff
VK		 1127 memcpy(&addr, a->data, sizeof(addr));
1128 memcpy(&pattern, p->data, sizeof(pattern));
aba5acdf
SH		 1129 if (pattern == NULL)
1130 return 1;
1131 if (addr == NULL)
1132 addr = "";
1133 return !fnmatch(pattern, addr, 0);
1134}
1135
055840f2 1136static int run_ssfilter(struct ssfilter *f, struct sockstat *s)
aba5acdf
SH		 1137{
1138 switch (f->type) {
1139 case SSF_S_AUTO:
1140 {
aba5acdf 1141 if (s->local.family == AF_UNIX) {
99bb68ff 1142 char *p;
acd1e437 1143
99bb68ff 1144 memcpy(&p, s->local.data, sizeof(p));
aba5acdf 1145 return p == NULL || (p[0] == '@' && strlen(p) == 6 &&
ae665a52 1146 strspn(p+1, "0123456789abcdef") == 5);
aba5acdf
SH		 1147 }
1148 if (s->local.family == AF_PACKET)
bbd303d1 1149 return s->lport == 0 && s->local.data[0] == 0;
aba5acdf
SH		 1150 if (s->local.family == AF_NETLINK)
1151 return s->lport < 0;
1152
c29d3792 1153 return is_ephemeral(s->lport);
aba5acdf
SH		 1154 }
1155 case SSF_DCOND:
1156 {
acd1e437
SH		 1157 struct aafilter *a = (void *)f->pred;
1158
aba5acdf
SH		 1159 if (a->addr.family == AF_UNIX)
1160 return unix_match(&s->remote, &a->addr);
1161 if (a->port != -1 && a->port != s->rport)
1162 return 0;
1163 if (a->addr.bitlen) {
1164 do {
1165 if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen))
1166 return 1;
1167 } while ((a = a->next) != NULL);
1168 return 0;
1169 }
1170 return 1;
1171 }
1172 case SSF_SCOND:
1173 {
acd1e437
SH		 1174 struct aafilter *a = (void *)f->pred;
1175
aba5acdf
SH		 1176 if (a->addr.family == AF_UNIX)
1177 return unix_match(&s->local, &a->addr);
1178 if (a->port != -1 && a->port != s->lport)
1179 return 0;
1180 if (a->addr.bitlen) {
1181 do {
1182 if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen))
1183 return 1;
ae665a52 1184 } while ((a = a->next) != NULL);
aba5acdf
SH		 1185 return 0;
1186 }
1187 return 1;
1188 }
1189 case SSF_D_GE:
1190 {
acd1e437
SH		 1191 struct aafilter *a = (void *)f->pred;
1192
aba5acdf
SH		 1193 return s->rport >= a->port;
1194 }
1195 case SSF_D_LE:
1196 {
acd1e437
SH		 1197 struct aafilter *a = (void *)f->pred;
1198
aba5acdf
SH		 1199 return s->rport <= a->port;
1200 }
1201 case SSF_S_GE:
1202 {
acd1e437
SH		 1203 struct aafilter *a = (void *)f->pred;
1204
aba5acdf
SH		 1205 return s->lport >= a->port;
1206 }
1207 case SSF_S_LE:
1208 {
acd1e437
SH		 1209 struct aafilter *a = (void *)f->pred;
1210
aba5acdf
SH		 1211 return s->lport <= a->port;
1212 }
2d293212
DA		 1213 case SSF_DEVCOND:
1214 {
1215 struct aafilter *a = (void *)f->pred;
aba5acdf 1216
2d293212 1217 return s->iface == a->iface;
ec75249b
LC		 1218 }
1219 case SSF_MARKMASK:
1220 {
1221 struct aafilter *a = (void *)f->pred;
1222
1223 return (s->mark & a->mask) == a->mark;
2d293212 1224 }
aba5acdf
SH		 1225 /* Yup. It is recursion. Sorry. */
1226 case SSF_AND:
1227 return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s);
1228 case SSF_OR:
1229 return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s);
1230 case SSF_NOT:
1231 return !run_ssfilter(f->pred, s);
1232 default:
1233 abort();
1234 }
1235}
1236
ae665a52 1237/* Relocate external jumps by reloc. */
b4b0b7d5 1238static void ssfilter_patch(char *a, int len, int reloc)
aba5acdf
SH		 1239{
1240 while (len > 0) {
acd1e437
SH		 1241 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)a;
1242
aba5acdf
SH		 1243 if (op->no == len+4)
1244 op->no += reloc;
1245 len -= op->yes;
1246 a += op->yes;
1247 }
1248 if (len < 0)
1249 abort();
1250}
1251
b4b0b7d5 1252static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
aba5acdf
SH		 1253{
1254 switch (f->type) {
1255 case SSF_S_AUTO:
1256 {
acd1e437
SH		 1257 if (!(*bytecode = malloc(4))) abort();
1258 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
df39de8d 1259 return 4;
aba5acdf
SH		 1260 }
1261 case SSF_DCOND:
1262 case SSF_SCOND:
1263 {
acd1e437 1264 struct aafilter *a = (void *)f->pred;
aba5acdf
SH		 1265 struct aafilter *b;
1266 char *ptr;
351efcde 1267 int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND);
aba5acdf
SH		 1268 int len = 0;
1269
acd1e437 1270 for (b = a; b; b = b->next) {
351efcde 1271 len += 4 + sizeof(struct inet_diag_hostcond);
aba5acdf
SH		 1272 if (a->addr.family == AF_INET6)
1273 len += 16;
1274 else
1275 len += 4;
1276 if (b->next)
1277 len += 4;
1278 }
1279 if (!(ptr = malloc(len))) abort();
1280 *bytecode = ptr;
acd1e437 1281 for (b = a; b; b = b->next) {
351efcde 1282 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr;
aba5acdf 1283 int alen = (a->addr.family == AF_INET6 ? 16 : 4);
351efcde 1284 int oplen = alen + 4 + sizeof(struct inet_diag_hostcond);
acd1e437 1285 struct inet_diag_hostcond *cond = (struct inet_diag_hostcond *)(ptr+4);
aba5acdf 1286
351efcde 1287 *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 };
aba5acdf
SH		 1288 cond->family = a->addr.family;
1289 cond->port = a->port;
1290 cond->prefix_len = a->addr.bitlen;
1291 memcpy(cond->addr, a->addr.data, alen);
1292 ptr += oplen;
1293 if (b->next) {
351efcde
SH		 1294 op = (struct inet_diag_bc_op *)ptr;
1295 *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)};
aba5acdf
SH		 1296 ptr += 4;
1297 }
1298 }
1299 return ptr - *bytecode;
1300 }
1301 case SSF_D_GE:
1302 {
acd1e437
SH		 1303 struct aafilter *x = (void *)f->pred;
1304
1305 if (!(*bytecode = malloc(8))) abort();
1306 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 };
1307 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1308 return 8;
1309 }
1310 case SSF_D_LE:
1311 {
acd1e437
SH		 1312 struct aafilter *x = (void *)f->pred;
1313
1314 if (!(*bytecode = malloc(8))) abort();
1315 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 };
1316 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1317 return 8;
1318 }
1319 case SSF_S_GE:
1320 {
acd1e437
SH		 1321 struct aafilter *x = (void *)f->pred;
1322
1323 if (!(*bytecode = malloc(8))) abort();
1324 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 };
1325 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1326 return 8;
1327 }
1328 case SSF_S_LE:
1329 {
acd1e437
SH		 1330 struct aafilter *x = (void *)f->pred;
1331
1332 if (!(*bytecode = malloc(8))) abort();
1333 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 };
1334 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1335 return 8;
1336 }
1337
1338 case SSF_AND:
1339 {
376fb868 1340 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1341 int l1, l2;
acd1e437 1342
aba5acdf
SH		 1343 l1 = ssfilter_bytecompile(f->pred, &a1);
1344 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1345 if (!l1 || !l2) {
1346 free(a1);
1347 free(a2);
1348 return 0;
1349 }
aba5acdf
SH		 1350 if (!(a = malloc(l1+l2))) abort();
1351 memcpy(a, a1, l1);
1352 memcpy(a+l1, a2, l2);
1353 free(a1); free(a2);
1354 ssfilter_patch(a, l1, l2);
1355 *bytecode = a;
1356 return l1+l2;
1357 }
1358 case SSF_OR:
1359 {
376fb868 1360 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1361 int l1, l2;
acd1e437 1362
aba5acdf
SH		 1363 l1 = ssfilter_bytecompile(f->pred, &a1);
1364 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1365 if (!l1 || !l2) {
1366 free(a1);
1367 free(a2);
1368 return 0;
1369 }
aba5acdf
SH		 1370 if (!(a = malloc(l1+l2+4))) abort();
1371 memcpy(a, a1, l1);
1372 memcpy(a+l1+4, a2, l2);
1373 free(a1); free(a2);
acd1e437 1374 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 };
aba5acdf
SH		 1375 *bytecode = a;
1376 return l1+l2+4;
1377 }
1378 case SSF_NOT:
1379 {
376fb868 1380 char *a1 = NULL, *a;
2a4fa1c3 1381 int l1;
acd1e437 1382
aba5acdf 1383 l1 = ssfilter_bytecompile(f->pred, &a1);
376fb868
DA		 1384 if (!l1) {
1385 free(a1);
1386 return 0;
1387 }
aba5acdf
SH		 1388 if (!(a = malloc(l1+4))) abort();
1389 memcpy(a, a1, l1);
1390 free(a1);
acd1e437 1391 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 };
aba5acdf
SH		 1392 *bytecode = a;
1393 return l1+4;
2d293212
DA		 1394 }
1395 case SSF_DEVCOND:
1396 {
1397 /* bytecompile for SSF_DEVCOND not supported yet */
1398 return 0;
ec75249b
LC		 1399 }
1400 case SSF_MARKMASK:
1401 {
1402 struct aafilter *a = (void *)f->pred;
1403 struct instr {
1404 struct inet_diag_bc_op op;
1405 struct inet_diag_markcond cond;
1406 };
1407 int inslen = sizeof(struct instr);
1408
1409 if (!(*bytecode = malloc(inslen))) abort();
1410 ((struct instr *)*bytecode)[0] = (struct instr) {
1411 { INET_DIAG_BC_MARK_COND, inslen, inslen + 4 },
1412 { a->mark, a->mask},
1413 };
1414
1415 return inslen;
aba5acdf
SH		 1416 }
1417 default:
1418 abort();
1419 }
1420}
1421
b4b0b7d5 1422static int remember_he(struct aafilter *a, struct hostent *he)
aba5acdf 1423{
ae665a52 1424 char **ptr = he->h_addr_list;
aba5acdf
SH		 1425 int cnt = 0;
1426 int len;
1427
1428 if (he->h_addrtype == AF_INET)
1429 len = 4;
1430 else if (he->h_addrtype == AF_INET6)
1431 len = 16;
1432 else
1433 return 0;
1434
1435 while (*ptr) {
1436 struct aafilter *b = a;
acd1e437 1437
aba5acdf
SH		 1438 if (a->addr.bitlen) {
1439 if ((b = malloc(sizeof(*b))) == NULL)
1440 return cnt;
1441 *b = *a;
aba5acdf
SH		 1442 a->next = b;
1443 }
1444 memcpy(b->addr.data, *ptr, len);
1445 b->addr.bytelen = len;
1446 b->addr.bitlen = len*8;
1447 b->addr.family = he->h_addrtype;
1448 ptr++;
1449 cnt++;
1450 }
1451 return cnt;
1452}
1453
b4b0b7d5 1454static int get_dns_host(struct aafilter *a, const char *addr, int fam)
aba5acdf
SH		 1455{
1456 static int notfirst;
1457 int cnt = 0;
1458 struct hostent *he;
1459
1460 a->addr.bitlen = 0;
1461 if (!notfirst) {
1462 sethostent(1);
1463 notfirst = 1;
1464 }
1465 he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam);
1466 if (he)
1467 cnt = remember_he(a, he);
1468 if (fam == AF_UNSPEC) {
1469 he = gethostbyname2(addr, AF_INET6);
1470 if (he)
1471 cnt += remember_he(a, he);
1472 }
1473 return !cnt;
1474}
1475
acd1e437 1476static int xll_initted;
aba5acdf 1477
b4b0b7d5 1478static void xll_init(void)
aba5acdf
SH		 1479{
1480 struct rtnl_handle rth;
acd1e437 1481
d2468da0
SH		 1482 if (rtnl_open(&rth, 0) < 0)
1483 exit(1);
1484
aba5acdf
SH		 1485 ll_init_map(&rth);
1486 rtnl_close(&rth);
1487 xll_initted = 1;
1488}
1489
b4b0b7d5 1490static const char *xll_index_to_name(int index)
aba5acdf
SH		 1491{
1492 if (!xll_initted)
1493 xll_init();
1494 return ll_index_to_name(index);
1495}
1496
b4b0b7d5 1497static int xll_name_to_index(const char *dev)
aba5acdf
SH		 1498{
1499 if (!xll_initted)
1500 xll_init();
1501 return ll_name_to_index(dev);
1502}
1503
2d293212
DA		 1504void *parse_devcond(char *name)
1505{
1506 struct aafilter a = { .iface = 0 };
1507 struct aafilter *res;
1508
1509 a.iface = xll_name_to_index(name);
1510 if (a.iface == 0) {
1511 char *end;
930d3f28 1512 unsigned long n;
2d293212 1513
930d3f28
DA		 1514 n = strtoul(name, &end, 0);
1515 if (!end || end == name || *end || n > UINT_MAX)
2d293212 1516 return NULL;
930d3f28
DA		 1517
1518 a.iface = n;
2d293212
DA		 1519 }
1520
1521 res = malloc(sizeof(*res));
1522 *res = a;
1523
1524 return res;
1525}
1526
7871f7db 1527void *parse_hostcond(char *addr, bool is_port)
aba5acdf
SH		 1528{
1529 char *port = NULL;
1527a17e 1530 struct aafilter a = { .port = -1 };
aba5acdf 1531 struct aafilter *res;
1527a17e 1532 int fam = preferred_family;
9db7bf15 1533 struct filter *f = &current_filter;
aba5acdf 1534
1527a17e 1535 if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) {
aba5acdf 1536 char *p;
acd1e437 1537
aba5acdf
SH		 1538 a.addr.family = AF_UNIX;
1539 if (strncmp(addr, "unix:", 5) == 0)
acd1e437 1540 addr += 5;
aba5acdf
SH		 1541 p = strdup(addr);
1542 a.addr.bitlen = 8*strlen(p);
99bb68ff 1543 memcpy(a.addr.data, &p, sizeof(p));
9db7bf15 1544 fam = AF_UNIX;
aba5acdf
SH		 1545 goto out;
1546 }
1547
1527a17e 1548 if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) {
aba5acdf
SH		 1549 a.addr.family = AF_PACKET;
1550 a.addr.bitlen = 0;
1551 if (strncmp(addr, "link:", 5) == 0)
acd1e437 1552 addr += 5;
aba5acdf
SH		 1553 port = strchr(addr, ':');
1554 if (port) {
1555 *port = 0;
1556 if (port[1] && strcmp(port+1, "*")) {
1557 if (get_integer(&a.port, port+1, 0)) {
1558 if ((a.port = xll_name_to_index(port+1)) <= 0)
1559 return NULL;
1560 }
1561 }
1562 }
1563 if (addr[0] && strcmp(addr, "*")) {
1564 unsigned short tmp;
acd1e437 1565
aba5acdf
SH		 1566 a.addr.bitlen = 32;
1567 if (ll_proto_a2n(&tmp, addr))
1568 return NULL;
1569 a.addr.data[0] = ntohs(tmp);
1570 }
9db7bf15 1571 fam = AF_PACKET;
aba5acdf
SH		 1572 goto out;
1573 }
1574
1527a17e 1575 if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) {
aba5acdf
SH		 1576 a.addr.family = AF_NETLINK;
1577 a.addr.bitlen = 0;
1578 if (strncmp(addr, "netlink:", 8) == 0)
acd1e437 1579 addr += 8;
aba5acdf
SH		 1580 port = strchr(addr, ':');
1581 if (port) {
1582 *port = 0;
1583 if (port[1] && strcmp(port+1, "*")) {
1584 if (get_integer(&a.port, port+1, 0)) {
1585 if (strcmp(port+1, "kernel") == 0)
1586 a.port = 0;
1587 else
1588 return NULL;
1589 }
1590 }
1591 }
1592 if (addr[0] && strcmp(addr, "*")) {
1593 a.addr.bitlen = 32;
b00daf6a 1594 if (nl_proto_a2n(&a.addr.data[0], addr) == -1)
1595 return NULL;
aba5acdf 1596 }
9db7bf15 1597 fam = AF_NETLINK;
aba5acdf
SH		 1598 goto out;
1599 }
1600
1527a17e 1601 if (fam == AF_INET || !strncmp(addr, "inet:", 5)) {
aba5acdf 1602 fam = AF_INET;
1527a17e
VK		 1603 if (!strncmp(addr, "inet:", 5))
1604 addr += 5;
1605 } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) {
aba5acdf 1606 fam = AF_INET6;
1527a17e
VK		 1607 if (!strncmp(addr, "inet6:", 6))
1608 addr += 6;
aba5acdf
SH		 1609 }
1610
1611 /* URL-like literal [] */
1612 if (addr[0] == '[') {
1613 addr++;
1614 if ((port = strchr(addr, ']')) == NULL)
1615 return NULL;
1616 *port++ = 0;
1617 } else if (addr[0] == '*') {
1618 port = addr+1;
1619 } else {
1620 port = strrchr(strchr(addr, '/') ? : addr, ':');
1621 }
7871f7db
VK		 1622
1623 if (is_port)
1624 port = addr;
1625
aba5acdf 1626 if (port && *port) {
7871f7db
VK		 1627 if (*port == ':')
1628 *port++ = 0;
1629
aba5acdf
SH		 1630 if (*port && *port != '*') {
1631 if (get_integer(&a.port, port, 0)) {
1632 struct servent *se1 = NULL;
1633 struct servent *se2 = NULL;
acd1e437 1634
aba5acdf
SH		 1635 if (current_filter.dbs&(1<<UDP_DB))
1636 se1 = getservbyname(port, UDP_PROTO);
1637 if (current_filter.dbs&(1<<TCP_DB))
1638 se2 = getservbyname(port, TCP_PROTO);
1639 if (se1 && se2 && se1->s_port != se2->s_port) {
1640 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1641 return NULL;
1642 }
1643 if (!se1)
1644 se1 = se2;
1645 if (se1) {
1646 a.port = ntohs(se1->s_port);
1647 } else {
1648 struct scache *s;
acd1e437 1649
aba5acdf
SH		 1650 for (s = rlist; s; s = s->next) {
1651 if ((s->proto == UDP_PROTO &&
1652 (current_filter.dbs&(1<<UDP_DB))) ||
1653 (s->proto == TCP_PROTO &&
1654 (current_filter.dbs&(1<<TCP_DB)))) {
1655 if (s->name && strcmp(s->name, port) == 0) {
1656 if (a.port > 0 && a.port != s->port) {
1657 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1658 return NULL;
1659 }
1660 a.port = s->port;
1661 }
1662 }
1663 }
1664 if (a.port <= 0) {
1665 fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port);
1666 return NULL;
1667 }
1668 }
1669 }
1670 }
1671 }
44448a90 1672 if (!is_port && *addr && *addr != '*') {
aba5acdf
SH		 1673 if (get_prefix_1(&a.addr, addr, fam)) {
1674 if (get_dns_host(&a, addr, fam)) {
1675 fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr);
1676 return NULL;
1677 }
1678 }
1679 }
1680
9db7bf15 1681out:
1527a17e 1682 if (fam != AF_UNSPEC) {
e56a959e 1683 int states = f->states;
1527a17e 1684 f->families = 0;
9db7bf15 1685 filter_af_set(f, fam);
e56a959e 1686 filter_states_set(f, states);
1527a17e 1687 }
9db7bf15 1688
aba5acdf
SH		 1689 res = malloc(sizeof(*res));
1690 if (res)
1691 memcpy(res, &a, sizeof(a));
1692 return res;
1693}
1694
ec75249b
LC		 1695void *parse_markmask(const char *markmask)
1696{
1697 struct aafilter a, *res;
1698
1699 if (strchr(markmask, '/')) {
1700 if (sscanf(markmask, "%i/%i", &a.mark, &a.mask) != 2)
1701 return NULL;
1702 } else {
1703 a.mask = 0xffffffff;
1704 if (sscanf(markmask, "%i", &a.mark) != 1)
1705 return NULL;
1706 }
1707
1708 res = malloc(sizeof(*res));
1709 if (res)
1710 memcpy(res, &a, sizeof(a));
1711 return res;
1712}
1713
5f27ac1d 1714static void proc_ctx_print(struct sockstat *s)
8250bc9f 1715{
5f27ac1d 1716 char *buf;
8250bc9f 1717
8250bc9f
VK		 1718 if (show_proc_ctx || show_sock_ctx) {
1719 if (find_entry(s->ino, &buf,
1720 (show_proc_ctx & show_sock_ctx) ?
1721 PROC_SOCK_CTX : PROC_CTX) > 0) {
1722 printf(" users:(%s)", buf);
1723 free(buf);
1724 }
1725 } else if (show_users) {
1726 if (find_entry(s->ino, &buf, USERS) > 0) {
1727 printf(" users:(%s)", buf);
1728 free(buf);
1729 }
1730 }
1731}
1732
5f27ac1d
PS		 1733static void inet_stats_print(struct sockstat *s)
1734{
1735 sock_state_print(s);
1736
1737 inet_addr_print(&s->local, s->lport, s->iface);
1738 inet_addr_print(&s->remote, s->rport, 0);
1739
1740 proc_ctx_print(s);
1741}
1742
055840f2 1743static int proc_parse_inet_addr(char *loc, char *rem, int family, struct
acd1e437 1744 sockstat * s)
8250bc9f
VK		 1745{
1746 s->local.family = s->remote.family = family;
1747 if (family == AF_INET) {
acd1e437
SH		 1748 sscanf(loc, "%x:%x", s->local.data, (unsigned *)&s->lport);
1749 sscanf(rem, "%x:%x", s->remote.data, (unsigned *)&s->rport);
8250bc9f
VK		 1750 s->local.bytelen = s->remote.bytelen = 4;
1751 return 0;
1752 } else {
1753 sscanf(loc, "%08x%08x%08x%08x:%x",
1754 s->local.data,
1755 s->local.data + 1,
1756 s->local.data + 2,
1757 s->local.data + 3,
1758 &s->lport);
1759 sscanf(rem, "%08x%08x%08x%08x:%x",
1760 s->remote.data,
1761 s->remote.data + 1,
1762 s->remote.data + 2,
1763 s->remote.data + 3,
1764 &s->rport);
1765 s->local.bytelen = s->remote.bytelen = 16;
1766 return 0;
1767 }
1768 return -1;
1769}
1770
1771static int proc_inet_split_line(char *line, char **loc, char **rem, char **data)
aba5acdf 1772{
aba5acdf 1773 char *p;
ae665a52 1774
aba5acdf
SH		 1775 if ((p = strchr(line, ':')) == NULL)
1776 return -1;
ae665a52 1777
8250bc9f
VK		 1778 *loc = p+2;
1779 if ((p = strchr(*loc, ':')) == NULL)
aba5acdf 1780 return -1;
ae665a52 1781
8250bc9f
VK		 1782 p[5] = 0;
1783 *rem = p+6;
1784 if ((p = strchr(*rem, ':')) == NULL)
aba5acdf 1785 return -1;
8250bc9f 1786
aba5acdf 1787 p[5] = 0;
8250bc9f
VK		 1788 *data = p+6;
1789 return 0;
1790}
ae665a52 1791
8250bc9f
VK		 1792static char *sprint_bw(char *buf, double bw)
1793{
1794 if (bw > 1000000.)
acd1e437 1795 sprintf(buf, "%.1fM", bw / 1000000.);
8250bc9f 1796 else if (bw > 1000.)
acd1e437 1797 sprintf(buf, "%.1fK", bw / 1000.);
8250bc9f
VK		 1798 else
1799 sprintf(buf, "%g", bw);
aba5acdf 1800
8250bc9f
VK		 1801 return buf;
1802}
ae665a52 1803
f89d46ad
PS		 1804static void sctp_stats_print(struct sctp_info *s)
1805{
1806 if (s->sctpi_tag)
1807 printf(" tag:%x", s->sctpi_tag);
1808 if (s->sctpi_state)
1809 printf(" state:%s", sctp_sstate_name[s->sctpi_state]);
1810 if (s->sctpi_rwnd)
1811 printf(" rwnd:%d", s->sctpi_rwnd);
1812 if (s->sctpi_unackdata)
1813 printf(" unackdata:%d", s->sctpi_unackdata);
1814 if (s->sctpi_penddata)
1815 printf(" penddata:%d", s->sctpi_penddata);
1816 if (s->sctpi_instrms)
1817 printf(" instrms:%d", s->sctpi_instrms);
1818 if (s->sctpi_outstrms)
1819 printf(" outstrms:%d", s->sctpi_outstrms);
1820 if (s->sctpi_inqueue)
1821 printf(" inqueue:%d", s->sctpi_inqueue);
1822 if (s->sctpi_outqueue)
1823 printf(" outqueue:%d", s->sctpi_outqueue);
1824 if (s->sctpi_overall_error)
1825 printf(" overerr:%d", s->sctpi_overall_error);
1826 if (s->sctpi_max_burst)
1827 printf(" maxburst:%d", s->sctpi_max_burst);
1828 if (s->sctpi_maxseg)
1829 printf(" maxseg:%d", s->sctpi_maxseg);
1830 if (s->sctpi_peer_rwnd)
1831 printf(" prwnd:%d", s->sctpi_peer_rwnd);
1832 if (s->sctpi_peer_tag)
1833 printf(" ptag:%x", s->sctpi_peer_tag);
1834 if (s->sctpi_peer_capable)
1835 printf(" pcapable:%d", s->sctpi_peer_capable);
1836 if (s->sctpi_peer_sack)
1837 printf(" psack:%d", s->sctpi_peer_sack);
1838 if (s->sctpi_s_autoclose)
1839 printf(" autoclose:%d", s->sctpi_s_autoclose);
1840 if (s->sctpi_s_adaptation_ind)
1841 printf(" adapind:%d", s->sctpi_s_adaptation_ind);
1842 if (s->sctpi_s_pd_point)
1843 printf(" pdpoint:%d", s->sctpi_s_pd_point);
1844 if (s->sctpi_s_nodelay)
1845 printf(" nodealy:%d", s->sctpi_s_nodelay);
1846 if (s->sctpi_s_disable_fragments)
1847 printf(" nofrag:%d", s->sctpi_s_disable_fragments);
1848 if (s->sctpi_s_v4mapped)
1849 printf(" v4mapped:%d", s->sctpi_s_v4mapped);
1850 if (s->sctpi_s_frag_interleave)
1851 printf(" fraginl:%d", s->sctpi_s_frag_interleave);
1852}
1853
8250bc9f
VK		 1854static void tcp_stats_print(struct tcpstat *s)
1855{
1856 char b1[64];
1857
1858 if (s->has_ts_opt)
1859 printf(" ts");
1860 if (s->has_sack_opt)
1861 printf(" sack");
1862 if (s->has_ecn_opt)
1863 printf(" ecn");
1864 if (s->has_ecnseen_opt)
1865 printf(" ecnseen");
1866 if (s->has_fastopen_opt)
1867 printf(" fastopen");
d2055ea5 1868 if (s->cong_alg[0])
8250bc9f
VK		 1869 printf(" %s", s->cong_alg);
1870 if (s->has_wscale_opt)
1871 printf(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale);
1872 if (s->rto)
1873 printf(" rto:%g", s->rto);
1874 if (s->backoff)
1875 printf(" backoff:%u", s->backoff);
1876 if (s->rtt)
1877 printf(" rtt:%g/%g", s->rtt, s->rttvar);
1878 if (s->ato)
1879 printf(" ato:%g", s->ato);
1880
1881 if (s->qack)
1882 printf(" qack:%d", s->qack);
1883 if (s->qack & 1)
1884 printf(" bidir");
1885
1886 if (s->mss)
1887 printf(" mss:%d", s->mss);
38e6dbc4
ED		 1888 if (s->rcv_mss)
1889 printf(" rcvmss:%d", s->rcv_mss);
1890 if (s->advmss)
1891 printf(" advmss:%d", s->advmss);
3bf5445c 1892 if (s->cwnd)
d1f338b3 1893 printf(" cwnd:%u", s->cwnd);
8250bc9f
VK		 1894 if (s->ssthresh)
1895 printf(" ssthresh:%d", s->ssthresh);
1896
1a4dda71
ED		 1897 if (s->bytes_acked)
1898 printf(" bytes_acked:%llu", s->bytes_acked);
1899 if (s->bytes_received)
1900 printf(" bytes_received:%llu", s->bytes_received);
ecb435ea
CG		 1901 if (s->segs_out)
1902 printf(" segs_out:%u", s->segs_out);
1903 if (s->segs_in)
1904 printf(" segs_in:%u", s->segs_in);
414aeec9
MKL		 1905 if (s->data_segs_out)
1906 printf(" data_segs_out:%u", s->data_segs_out);
1907 if (s->data_segs_in)
1908 printf(" data_segs_in:%u", s->data_segs_in);
1a4dda71 1909
8250bc9f
VK		 1910 if (s->dctcp && s->dctcp->enabled) {
1911 struct dctcpstat *dctcp = s->dctcp;
1912
3bf5445c 1913 printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
8250bc9f
VK		 1914 dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn,
1915 dctcp->ab_tot);
1916 } else if (s->dctcp) {
3bf5445c 1917 printf(" dctcp:fallback_mode");
8250bc9f
VK		 1918 }
1919
2f0f9aef
NC		 1920 if (s->bbr_info) {
1921 __u64 bw;
1922
1923 bw = s->bbr_info->bbr_bw_hi;
1924 bw <<= 32;
1925 bw |= s->bbr_info->bbr_bw_lo;
1926
1927 printf(" bbr:(bw:%sbps,mrtt:%g",
1928 sprint_bw(b1, bw * 8.0),
1929 (double)s->bbr_info->bbr_min_rtt / 1000.0);
1930 if (s->bbr_info->bbr_pacing_gain)
1931 printf(",pacing_gain:%g",
1932 (double)s->bbr_info->bbr_pacing_gain / 256.0);
1933 if (s->bbr_info->bbr_cwnd_gain)
1934 printf(",cwnd_gain:%g",
1935 (double)s->bbr_info->bbr_cwnd_gain / 256.0);
1936 printf(")");
1937 }
1938
8250bc9f
VK		 1939 if (s->send_bps)
1940 printf(" send %sbps", sprint_bw(b1, s->send_bps));
1941 if (s->lastsnd)
1942 printf(" lastsnd:%u", s->lastsnd);
1943 if (s->lastrcv)
1944 printf(" lastrcv:%u", s->lastrcv);
1945 if (s->lastack)
1946 printf(" lastack:%u", s->lastack);
1947
1948 if (s->pacing_rate) {
1949 printf(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate));
1950 if (s->pacing_rate_max)
1951 printf("/%sbps", sprint_bw(b1,
1952 s->pacing_rate_max));
1953 }
1954
2f579872
NC		 1955 if (s->delivery_rate)
1956 printf(" delivery_rate %sbps", sprint_bw(b1, s->delivery_rate));
1957 if (s->app_limited)
1958 printf(" app_limited");
1959
b6c7fc61
YC		 1960 if (s->busy_time) {
1961 printf(" busy:%llums", s->busy_time / 1000);
1962 if (s->rwnd_limited)
1963 printf(" rwnd_limited:%llums(%.1f%%)",
1964 s->rwnd_limited / 1000,
1965 100.0 * s->rwnd_limited / s->busy_time);
1966 if (s->sndbuf_limited)
1967 printf(" sndbuf_limited:%llums(%.1f%%)",
1968 s->sndbuf_limited / 1000,
1969 100.0 * s->sndbuf_limited / s->busy_time);
1970 }
1971
8250bc9f
VK		 1972 if (s->unacked)
1973 printf(" unacked:%u", s->unacked);
1974 if (s->retrans || s->retrans_total)
1975 printf(" retrans:%u/%u", s->retrans, s->retrans_total);
1976 if (s->lost)
1977 printf(" lost:%u", s->lost);
055840f2 1978 if (s->sacked && s->ss.state != SS_LISTEN)
8250bc9f
VK		 1979 printf(" sacked:%u", s->sacked);
1980 if (s->fackets)
1981 printf(" fackets:%u", s->fackets);
1982 if (s->reordering != 3)
1983 printf(" reordering:%d", s->reordering);
1984 if (s->rcv_rtt)
1985 printf(" rcv_rtt:%g", s->rcv_rtt);
1986 if (s->rcv_space)
1987 printf(" rcv_space:%d", s->rcv_space);
9e99e495
SH		 1988 if (s->not_sent)
1989 printf(" notsent:%u", s->not_sent);
1990 if (s->min_rtt)
1991 printf(" minrtt:%g", s->min_rtt);
8250bc9f
VK		 1992}
1993
055840f2
VK		 1994static void tcp_timer_print(struct tcpstat *s)
1995{
86dfa1be
PS		 1996 static const char * const tmr_name[] = {
1997 "off",
1998 "on",
1999 "keepalive",
2000 "timewait",
2001 "persist",
2002 "unknown"
2003 };
2004
055840f2
VK		 2005 if (s->timer) {
2006 if (s->timer > 4)
2007 s->timer = 5;
2008 printf(" timer:(%s,%s,%d)",
2009 tmr_name[s->timer],
2010 print_ms_timer(s->timeout),
2011 s->retrans);
2012 }
2013}
2014
f89d46ad
PS		 2015static void sctp_timer_print(struct tcpstat *s)
2016{
2017 if (s->timer)
2018 printf(" timer:(T3_RTX,%s,%d)",
2019 print_ms_timer(s->timeout), s->retrans);
2020}
2021
8250bc9f
VK		 2022static int tcp_show_line(char *line, const struct filter *f, int family)
2023{
2024 int rto = 0, ato = 0;
2025 struct tcpstat s = {};
2026 char *loc, *rem, *data;
2027 char opt[256];
2028 int n;
2029 int hz = get_user_hz();
2030
2031 if (proc_inet_split_line(line, &loc, &rem, &data))
2032 return -1;
2033
2034 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2035
8250bc9f
VK		 2036 if (!(f->states & (1 << state)))
2037 return 0;
2038
055840f2 2039 proc_parse_inet_addr(loc, rem, family, &s.ss);
ae665a52 2040
055840f2 2041 if (f->f && run_ssfilter(f->f, &s.ss) == 0)
aba5acdf 2042 return 0;
ae665a52 2043
aba5acdf 2044 opt[0] = 0;
d1f338b3 2045 n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
055840f2
VK		 2046 &s.ss.state, &s.ss.wq, &s.ss.rq,
2047 &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes,
2048 &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd,
2049 &s.ssthresh, opt);
ae665a52 2050
aba5acdf
SH		 2051 if (n < 17)
2052 opt[0] = 0;
ae665a52 2053
aba5acdf 2054 if (n < 12) {
8250bc9f 2055 rto = 0;
aba5acdf
SH		 2056 s.cwnd = 2;
2057 s.ssthresh = -1;
8250bc9f 2058 ato = s.qack = 0;
aba5acdf 2059 }
ae665a52 2060
8250bc9f
VK		 2061 s.retrans = s.timer != 1 ? s.probes : s.retrans;
2062 s.timeout = (s.timeout * 1000 + hz - 1) / hz;
2063 s.ato = (double)ato / hz;
2064 s.qack /= 2;
2065 s.rto = (double)rto;
2066 s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh;
2067 s.rto = s.rto != 3 * hz ? s.rto / hz : 0;
be7e4d20 2068 s.ss.type = IPPROTO_TCP;
ae665a52 2069
be7e4d20 2070 inet_stats_print(&s.ss);
055840f2
VK		 2071
2072 if (show_options)
2073 tcp_timer_print(&s);
116ac927 2074
aba5acdf 2075 if (show_details) {
f1b39e1b 2076 sock_details_print(&s.ss);
aba5acdf
SH		 2077 if (opt[0])
2078 printf(" opt:\"%s\"", opt);
2079 }
aba5acdf 2080
8250bc9f
VK		 2081 if (show_tcpinfo)
2082 tcp_stats_print(&s);
2083
2084 printf("\n");
aba5acdf
SH		 2085 return 0;
2086}
2087
ab01dbbb
SH		 2088static int generic_record_read(FILE *fp,
2089 int (*worker)(char*, const struct filter *, int),
2090 const struct filter *f, int fam)
aba5acdf 2091{
ab01dbbb 2092 char line[256];
aba5acdf 2093
ab01dbbb
SH		 2094 /* skip header */
2095 if (fgets(line, sizeof(line), fp) == NULL)
aba5acdf 2096 goto outerr;
ab01dbbb
SH		 2097
2098 while (fgets(line, sizeof(line), fp) != NULL) {
2099 int n = strlen(line);
acd1e437 2100
ab01dbbb
SH		 2101 if (n == 0 || line[n-1] != '\n') {
2102 errno = -EINVAL;
2103 return -1;
aba5acdf 2104 }
ab01dbbb 2105 line[n-1] = 0;
aba5acdf 2106
ab01dbbb
SH		 2107 if (worker(line, f, fam) < 0)
2108 return 0;
2109 }
aba5acdf 2110outerr:
ab01dbbb
SH		 2111
2112 return ferror(fp) ? -1 : 0;
aba5acdf 2113}
ae665a52 2114
51ff9f24
HFS		 2115static void print_skmeminfo(struct rtattr *tb[], int attrtype)
2116{
2117 const __u32 *skmeminfo;
db08bdb8
VK		 2118
2119 if (!tb[attrtype]) {
2120 if (attrtype == INET_DIAG_SKMEMINFO) {
2121 if (!tb[INET_DIAG_MEMINFO])
2122 return;
2123
2124 const struct inet_diag_meminfo *minfo =
2125 RTA_DATA(tb[INET_DIAG_MEMINFO]);
2126
2127 printf(" mem:(r%u,w%u,f%u,t%u)",
2128 minfo->idiag_rmem,
2129 minfo->idiag_wmem,
2130 minfo->idiag_fmem,
2131 minfo->idiag_tmem);
2132 }
51ff9f24 2133 return;
db08bdb8
VK		 2134 }
2135
51ff9f24
HFS		 2136 skmeminfo = RTA_DATA(tb[attrtype]);
2137
2138 printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2139 skmeminfo[SK_MEMINFO_RMEM_ALLOC],
2140 skmeminfo[SK_MEMINFO_RCVBUF],
2141 skmeminfo[SK_MEMINFO_WMEM_ALLOC],
2142 skmeminfo[SK_MEMINFO_SNDBUF],
2143 skmeminfo[SK_MEMINFO_FWD_ALLOC],
2144 skmeminfo[SK_MEMINFO_WMEM_QUEUED],
2145 skmeminfo[SK_MEMINFO_OPTMEM]);
2146
2147 if (RTA_PAYLOAD(tb[attrtype]) >=
2148 (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32))
2149 printf(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]);
2150
6df9c7a0
ED		 2151 if (RTA_PAYLOAD(tb[attrtype]) >=
2152 (SK_MEMINFO_DROPS + 1) * sizeof(__u32))
2153 printf(",d%u", skmeminfo[SK_MEMINFO_DROPS]);
2154
51ff9f24
HFS		 2155 printf(")");
2156}
2157
8250bc9f
VK		 2158#define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2159
5b816047
PE		 2160static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2161 struct rtattr *tb[])
7d105b56 2162{
b4b0b7d5 2163 double rtt = 0;
8250bc9f 2164 struct tcpstat s = {};
7d105b56 2165
055840f2
VK		 2166 s.ss.state = r->idiag_state;
2167
db08bdb8 2168 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
7d105b56 2169
351efcde 2170 if (tb[INET_DIAG_INFO]) {
05e18118 2171 struct tcp_info *info;
351efcde 2172 int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
05e18118
SH		 2173
2174 /* workaround for older kernels with less fields */
2175 if (len < sizeof(*info)) {
2176 info = alloca(sizeof(*info));
351efcde 2177 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
656e8fdd 2178 memset((char *)info + len, 0, sizeof(*info) - len);
05e18118 2179 } else
351efcde 2180 info = RTA_DATA(tb[INET_DIAG_INFO]);
05e18118 2181
b4b0b7d5 2182 if (show_options) {
8250bc9f
VK		 2183 s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS);
2184 s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK);
2185 s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN);
2186 s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN);
2187 s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA);
b4b0b7d5 2188 }
52d5ac3f 2189
d2055ea5
ED		 2190 if (tb[INET_DIAG_CONG])
2191 strncpy(s.cong_alg,
2192 rta_getattr_str(tb[INET_DIAG_CONG]),
2193 sizeof(s.cong_alg) - 1);
8250bc9f
VK		 2194
2195 if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) {
2196 s.has_wscale_opt = true;
2197 s.snd_wscale = info->tcpi_snd_wscale;
2198 s.rcv_wscale = info->tcpi_rcv_wscale;
2199 }
ea8fc104 2200
7d105b56 2201 if (info->tcpi_rto && info->tcpi_rto != 3000000)
8250bc9f
VK		 2202 s.rto = (double)info->tcpi_rto / 1000;
2203
2204 s.backoff = info->tcpi_backoff;
2205 s.rtt = (double)info->tcpi_rtt / 1000;
2206 s.rttvar = (double)info->tcpi_rttvar / 1000;
11ba90fc 2207 s.ato = (double)info->tcpi_ato / 1000;
8250bc9f 2208 s.mss = info->tcpi_snd_mss;
38e6dbc4
ED		 2209 s.rcv_mss = info->tcpi_rcv_mss;
2210 s.advmss = info->tcpi_advmss;
8250bc9f
VK		 2211 s.rcv_space = info->tcpi_rcv_space;
2212 s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000;
2213 s.lastsnd = info->tcpi_last_data_sent;
2214 s.lastrcv = info->tcpi_last_data_recv;
2215 s.lastack = info->tcpi_last_ack_recv;
2216 s.unacked = info->tcpi_unacked;
2217 s.retrans = info->tcpi_retrans;
2218 s.retrans_total = info->tcpi_total_retrans;
2219 s.lost = info->tcpi_lost;
2220 s.sacked = info->tcpi_sacked;
2221 s.reordering = info->tcpi_reordering;
2222 s.rcv_space = info->tcpi_rcv_space;
2223 s.cwnd = info->tcpi_snd_cwnd;
2224
7d105b56 2225 if (info->tcpi_snd_ssthresh < 0xFFFF)
8250bc9f 2226 s.ssthresh = info->tcpi_snd_ssthresh;
52d5ac3f 2227
b4b0b7d5 2228 rtt = (double) info->tcpi_rtt;
351efcde 2229 if (tb[INET_DIAG_VEGASINFO]) {
05e18118 2230 const struct tcpvegas_info *vinfo
351efcde 2231 = RTA_DATA(tb[INET_DIAG_VEGASINFO]);
7d105b56 2232
ae665a52 2233 if (vinfo->tcpv_enabled &&
8250bc9f 2234 vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff)
ea8fc104 2235 rtt = vinfo->tcpv_rtt;
b4b0b7d5
SH		 2236 }
2237
907e1aca 2238 if (tb[INET_DIAG_DCTCPINFO]) {
8250bc9f
VK		 2239 struct dctcpstat *dctcp = malloc(sizeof(struct
2240 dctcpstat));
2241
907e1aca
DB		 2242 const struct tcp_dctcp_info *dinfo
2243 = RTA_DATA(tb[INET_DIAG_DCTCPINFO]);
2244
8250bc9f
VK		 2245 dctcp->enabled = !!dinfo->dctcp_enabled;
2246 dctcp->ce_state = dinfo->dctcp_ce_state;
2247 dctcp->alpha = dinfo->dctcp_alpha;
2248 dctcp->ab_ecn = dinfo->dctcp_ab_ecn;
2249 dctcp->ab_tot = dinfo->dctcp_ab_tot;
2250 s.dctcp = dctcp;
907e1aca
DB		 2251 }
2252
2f0f9aef
NC		 2253 if (tb[INET_DIAG_BBRINFO]) {
2254 const void *bbr_info = RTA_DATA(tb[INET_DIAG_BBRINFO]);
2255 int len = min(RTA_PAYLOAD(tb[INET_DIAG_BBRINFO]),
2256 sizeof(*s.bbr_info));
2257
2258 s.bbr_info = calloc(1, sizeof(*s.bbr_info));
2259 if (s.bbr_info && bbr_info)
2260 memcpy(s.bbr_info, bbr_info, len);
2261 }
2262
b4b0b7d5 2263 if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
8250bc9f
VK		 2264 s.send_bps = (double) info->tcpi_snd_cwnd *
2265 (double)info->tcpi_snd_mss * 8000000. / rtt;
7d105b56 2266 }
b4b0b7d5 2267
eb6028b2 2268 if (info->tcpi_pacing_rate &&
8250bc9f
VK		 2269 info->tcpi_pacing_rate != ~0ULL) {
2270 s.pacing_rate = info->tcpi_pacing_rate * 8.;
eb6028b2
ED		 2271
2272 if (info->tcpi_max_pacing_rate &&
8250bc9f
VK		 2273 info->tcpi_max_pacing_rate != ~0ULL)
2274 s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.;
eb6028b2 2275 }
1a4dda71
ED		 2276 s.bytes_acked = info->tcpi_bytes_acked;
2277 s.bytes_received = info->tcpi_bytes_received;
ecb435ea
CG		 2278 s.segs_out = info->tcpi_segs_out;
2279 s.segs_in = info->tcpi_segs_in;
414aeec9
MKL		 2280 s.data_segs_out = info->tcpi_data_segs_out;
2281 s.data_segs_in = info->tcpi_data_segs_in;
9e99e495 2282 s.not_sent = info->tcpi_notsent_bytes;
d9ba887e
ED		 2283 if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U)
2284 s.min_rtt = (double) info->tcpi_min_rtt / 1000;
2f579872
NC		 2285 s.delivery_rate = info->tcpi_delivery_rate * 8.;
2286 s.app_limited = info->tcpi_delivery_rate_app_limited;
b6c7fc61
YC		 2287 s.busy_time = info->tcpi_busy_time;
2288 s.rwnd_limited = info->tcpi_rwnd_limited;
2289 s.sndbuf_limited = info->tcpi_sndbuf_limited;
8250bc9f 2290 tcp_stats_print(&s);
92de1c2c 2291 free(s.dctcp);
2f0f9aef 2292 free(s.bbr_info);
77a8ca81 2293 }
77a8ca81
PE		 2294}
2295
f89d46ad
PS		 2296static const char *format_host_sa(struct sockaddr_storage *sa)
2297{
2298 union {
2299 struct sockaddr_in sin;
2300 struct sockaddr_in6 sin6;
2301 } *saddr = (void *)sa;
2302
2303 switch (sa->ss_family) {
2304 case AF_INET:
2305 return format_host(AF_INET, 4, &saddr->sin.sin_addr);
2306 case AF_INET6:
2307 return format_host(AF_INET6, 16, &saddr->sin6.sin6_addr);
2308 default:
2309 return "";
2310 }
2311}
2312
2313static void sctp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2314 struct rtattr *tb[])
2315{
2316 struct sockaddr_storage *sa;
2317 int len;
2318
2319 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
2320
2321 if (tb[INET_DIAG_LOCALS]) {
2322 len = RTA_PAYLOAD(tb[INET_DIAG_LOCALS]);
2323 sa = RTA_DATA(tb[INET_DIAG_LOCALS]);
2324
2325 printf("locals:%s", format_host_sa(sa));
2326 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2327 printf(",%s", format_host_sa(sa));
2328
2329 }
2330 if (tb[INET_DIAG_PEERS]) {
2331 len = RTA_PAYLOAD(tb[INET_DIAG_PEERS]);
2332 sa = RTA_DATA(tb[INET_DIAG_PEERS]);
2333
2334 printf(" peers:%s", format_host_sa(sa));
2335 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2336 printf(",%s", format_host_sa(sa));
2337 }
2338 if (tb[INET_DIAG_INFO]) {
2339 struct sctp_info *info;
2340 len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
2341
2342 /* workaround for older kernels with less fields */
2343 if (len < sizeof(*info)) {
2344 info = alloca(sizeof(*info));
2345 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
2346 memset((char *)info + len, 0, sizeof(*info) - len);
2347 } else
2348 info = RTA_DATA(tb[INET_DIAG_INFO]);
2349
2350 sctp_stats_print(info);
2351 }
2352}
2353
82d73ea0 2354static void parse_diag_msg(struct nlmsghdr *nlh, struct sockstat *s)
aba5acdf 2355{
acd1e437 2356 struct rtattr *tb[INET_DIAG_MAX+1];
351efcde 2357 struct inet_diag_msg *r = NLMSG_DATA(nlh);
aba5acdf 2358
acd1e437 2359 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
5b816047
PE		 2360 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
2361
82d73ea0
DA		 2362 s->state = r->idiag_state;
2363 s->local.family = s->remote.family = r->idiag_family;
2364 s->lport = ntohs(r->id.idiag_sport);
2365 s->rport = ntohs(r->id.idiag_dport);
2366 s->wq = r->idiag_wqueue;
2367 s->rq = r->idiag_rqueue;
2368 s->ino = r->idiag_inode;
2369 s->uid = r->idiag_uid;
2370 s->iface = r->id.idiag_if;
2371 s->sk = cookie_sk_get(&r->id.idiag_cookie[0]);
2372
ec75249b
LC		 2373 s->mark = 0;
2374 if (tb[INET_DIAG_MARK])
9f1370c0 2375 s->mark = rta_getattr_u32(tb[INET_DIAG_MARK]);
41fe6c34 2376 if (tb[INET_DIAG_PROTOCOL])
9f1370c0 2377 s->raw_prot = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]);
41fe6c34
CG		 2378 else
2379 s->raw_prot = 0;
ec75249b 2380
82d73ea0
DA		 2381 if (s->local.family == AF_INET)
2382 s->local.bytelen = s->remote.bytelen = 4;
2383 else
2384 s->local.bytelen = s->remote.bytelen = 16;
8250bc9f 2385
82d73ea0
DA		 2386 memcpy(s->local.data, r->id.idiag_src, s->local.bytelen);
2387 memcpy(s->remote.data, r->id.idiag_dst, s->local.bytelen);
2388}
aba5acdf 2389
82d73ea0 2390static int inet_show_sock(struct nlmsghdr *nlh,
be7e4d20 2391 struct sockstat *s)
82d73ea0
DA		 2392{
2393 struct rtattr *tb[INET_DIAG_MAX+1];
2394 struct inet_diag_msg *r = NLMSG_DATA(nlh);
2395
2396 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
2397 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
aba5acdf 2398
6885e3bf 2399 if (tb[INET_DIAG_PROTOCOL])
9f1370c0 2400 s->type = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]);
6885e3bf 2401
be7e4d20 2402 inet_stats_print(s);
116ac927 2403
055840f2
VK		 2404 if (show_options) {
2405 struct tcpstat t = {};
2406
2407 t.timer = r->idiag_timer;
2408 t.timeout = r->idiag_expires;
2409 t.retrans = r->idiag_retrans;
be7e4d20 2410 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2411 sctp_timer_print(&t);
2412 else
2413 tcp_timer_print(&t);
055840f2
VK		 2414 }
2415
aba5acdf 2416 if (show_details) {
82d73ea0
DA		 2417 sock_details_print(s);
2418 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY]) {
f32dc746 2419 unsigned char v6only;
acd1e437 2420
9f1370c0 2421 v6only = rta_getattr_u8(tb[INET_DIAG_SKV6ONLY]);
f32dc746
PS		 2422 printf(" v6only:%u", v6only);
2423 }
5b816047
PE		 2424 if (tb[INET_DIAG_SHUTDOWN]) {
2425 unsigned char mask;
acd1e437 2426
9f1370c0 2427 mask = rta_getattr_u8(tb[INET_DIAG_SHUTDOWN]);
5b816047
PE		 2428 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
2429 }
aba5acdf 2430 }
8250bc9f 2431
be7e4d20 2432 if (show_mem || (show_tcpinfo && s->type != IPPROTO_UDP)) {
7d105b56 2433 printf("\n\t");
be7e4d20 2434 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2435 sctp_show_info(nlh, r, tb);
2436 else
2437 tcp_show_info(nlh, r, tb);
aba5acdf 2438 }
f89d46ad 2439 sctp_ino = s->ino;
7d105b56 2440
aba5acdf 2441 printf("\n");
aba5acdf 2442 return 0;
aba5acdf
SH		 2443}
2444
746a695f 2445static int tcpdiag_send(int fd, int protocol, struct filter *f)
aba5acdf 2446{
d17b136f 2447 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
aba5acdf
SH		 2448 struct {
2449 struct nlmsghdr nlh;
351efcde 2450 struct inet_diag_req r;
d17b136f
PS		 2451 } req = {
2452 .nlh.nlmsg_len = sizeof(req),
2453 .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
2454 .nlh.nlmsg_seq = MAGIC_SEQ,
2455 .r.idiag_family = AF_INET,
2456 .r.idiag_states = f->states,
2457 };
aba5acdf
SH		 2458 char *bc = NULL;
2459 int bclen;
2460 struct msghdr msg;
2461 struct rtattr rta;
aba5acdf 2462 struct iovec iov[3];
376fb868 2463 int iovlen = 1;
aba5acdf 2464
346f8ca8
PE		 2465 if (protocol == IPPROTO_UDP)
2466 return -1;
2467
3fe5b534
PE		 2468 if (protocol == IPPROTO_TCP)
2469 req.nlh.nlmsg_type = TCPDIAG_GETSOCK;
2470 else
2471 req.nlh.nlmsg_type = DCCPDIAG_GETSOCK;
910b0397 2472 if (show_mem) {
ae665a52 2473 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
910b0397
SW		 2474 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2475 }
b4b0b7d5 2476
7d105b56 2477 if (show_tcpinfo) {
351efcde
SH		 2478 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2479 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2480 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
7d105b56 2481 }
aba5acdf 2482
ae665a52
SH		 2483 iov[0] = (struct iovec){
2484 .iov_base = &req,
2485 .iov_len = sizeof(req)
ea8fc104 2486 };
aba5acdf
SH		 2487 if (f->f) {
2488 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2489 if (bclen) {
2490 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2491 rta.rta_len = RTA_LENGTH(bclen);
2492 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2493 iov[2] = (struct iovec){ bc, bclen };
2494 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2495 iovlen = 3;
2496 }
aba5acdf
SH		 2497 }
2498
2499 msg = (struct msghdr) {
acd1e437 2500 .msg_name = (void *)&nladdr,
ea8fc104 2501 .msg_namelen = sizeof(nladdr),
ae665a52 2502 .msg_iov = iov,
376fb868 2503 .msg_iovlen = iovlen,
aba5acdf
SH		 2504 };
2505
930a75f9
ED		 2506 if (sendmsg(fd, &msg, 0) < 0) {
2507 close(fd);
aba5acdf 2508 return -1;
930a75f9 2509 }
aba5acdf 2510
746a695f
PE		 2511 return 0;
2512}
2513
886d19d6
PE		 2514static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
2515{
d17b136f 2516 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
5fb421d4 2517 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
886d19d6
PE		 2518 char *bc = NULL;
2519 int bclen;
2520 struct msghdr msg;
2521 struct rtattr rta;
2522 struct iovec iov[3];
376fb868 2523 int iovlen = 1;
886d19d6
PE		 2524
2525 if (family == PF_UNSPEC)
2526 return tcpdiag_send(fd, protocol, f);
2527
886d19d6
PE		 2528 memset(&req.r, 0, sizeof(req.r));
2529 req.r.sdiag_family = family;
2530 req.r.sdiag_protocol = protocol;
2531 req.r.idiag_states = f->states;
2532 if (show_mem) {
2533 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
2534 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2535 }
2536
2537 if (show_tcpinfo) {
2538 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2539 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2540 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
2541 }
2542
2543 iov[0] = (struct iovec){
2544 .iov_base = &req,
2545 .iov_len = sizeof(req)
2546 };
2547 if (f->f) {
2548 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2549 if (bclen) {
2550 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2551 rta.rta_len = RTA_LENGTH(bclen);
2552 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2553 iov[2] = (struct iovec){ bc, bclen };
2554 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2555 iovlen = 3;
2556 }
886d19d6
PE		 2557 }
2558
2559 msg = (struct msghdr) {
acd1e437 2560 .msg_name = (void *)&nladdr,
886d19d6
PE		 2561 .msg_namelen = sizeof(nladdr),
2562 .msg_iov = iov,
376fb868 2563 .msg_iovlen = iovlen,
886d19d6
PE		 2564 };
2565
2566 if (sendmsg(fd, &msg, 0) < 0) {
2567 close(fd);
2568 return -1;
2569 }
2570
2571 return 0;
2572}
2573
486ccd99
VK		 2574struct inet_diag_arg {
2575 struct filter *f;
2576 int protocol;
fb2594c1 2577 struct rtnl_handle *rth;
486ccd99 2578};
aba5acdf 2579
41fe6c34 2580static int kill_inet_sock(struct nlmsghdr *h, void *arg, struct sockstat *s)
fb2594c1
LC		 2581{
2582 struct inet_diag_msg *d = NLMSG_DATA(h);
2583 struct inet_diag_arg *diag_arg = arg;
2584 struct rtnl_handle *rth = diag_arg->rth;
acd1e437 2585
fb2594c1
LC		 2586 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
2587
2588 req.nlh.nlmsg_type = SOCK_DESTROY;
2589 req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
2590 req.nlh.nlmsg_seq = ++rth->seq;
2591 req.r.sdiag_family = d->idiag_family;
2592 req.r.sdiag_protocol = diag_arg->protocol;
2593 req.r.id = d->id;
2594
41fe6c34
CG		 2595 if (diag_arg->protocol == IPPROTO_RAW) {
2596 struct inet_diag_req_raw *raw = (void *)&req.r;
2597
2598 BUILD_BUG_ON(sizeof(req.r) != sizeof(*raw));
2599 raw->sdiag_raw_protocol = s->raw_prot;
2600 }
2601
fb2594c1
LC		 2602 return rtnl_talk(rth, &req.nlh, NULL, 0);
2603}
2604
486ccd99
VK		 2605static int show_one_inet_sock(const struct sockaddr_nl *addr,
2606 struct nlmsghdr *h, void *arg)
2607{
2608 int err;
2609 struct inet_diag_arg *diag_arg = arg;
2610 struct inet_diag_msg *r = NLMSG_DATA(h);
82d73ea0 2611 struct sockstat s = {};
aba5acdf 2612
b338a3e7 2613 if (!(diag_arg->f->families & FAMILY_MASK(r->idiag_family)))
486ccd99 2614 return 0;
82d73ea0
DA		 2615
2616 parse_diag_msg(h, &s);
be7e4d20 2617 s.type = diag_arg->protocol;
82d73ea0
DA		 2618
2619 if (diag_arg->f->f && run_ssfilter(diag_arg->f->f, &s) == 0)
2620 return 0;
2621
41fe6c34 2622 if (diag_arg->f->kill && kill_inet_sock(h, arg, &s) != 0) {
fb2594c1
LC		 2623 if (errno == EOPNOTSUPP || errno == ENOENT) {
2624 /* Socket can't be closed, or is already closed. */
2625 return 0;
2626 } else {
2627 perror("SOCK_DESTROY answers");
2628 return -1;
2629 }
2630 }
82d73ea0 2631
be7e4d20 2632 err = inet_show_sock(h, &s);
82d73ea0 2633 if (err < 0)
486ccd99 2634 return err;
aba5acdf 2635
486ccd99
VK		 2636 return 0;
2637}
886d19d6 2638
486ccd99
VK		 2639static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol)
2640{
2641 int err = 0;
fb2594c1 2642 struct rtnl_handle rth, rth2;
486ccd99
VK		 2643 int family = PF_INET;
2644 struct inet_diag_arg arg = { .f = f, .protocol = protocol };
886d19d6 2645
486ccd99
VK		 2646 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
2647 return -1;
fb2594c1
LC		 2648
2649 if (f->kill) {
2650 if (rtnl_open_byproto(&rth2, 0, NETLINK_SOCK_DIAG)) {
2651 rtnl_close(&rth);
2652 return -1;
2653 }
2654 arg.rth = &rth2;
2655 }
2656
486ccd99
VK		 2657 rth.dump = MAGIC_SEQ;
2658 rth.dump_fp = dump_fp;
518af1e0
ED		 2659 if (preferred_family == PF_INET6)
2660 family = PF_INET6;
886d19d6 2661
486ccd99
VK		 2662again:
2663 if ((err = sockdiag_send(family, rth.fd, protocol, f)))
2664 goto Exit;
aba5acdf 2665
486ccd99
VK		 2666 if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) {
2667 if (family != PF_UNSPEC) {
2668 family = PF_UNSPEC;
2669 goto again;
aba5acdf 2670 }
486ccd99 2671 goto Exit;
aba5acdf 2672 }
518af1e0 2673 if (family == PF_INET && preferred_family != PF_INET) {
886d19d6
PE		 2674 family = PF_INET6;
2675 goto again;
2676 }
2677
486ccd99
VK		 2678Exit:
2679 rtnl_close(&rth);
fb2594c1
LC		 2680 if (arg.rth)
2681 rtnl_close(arg.rth);
486ccd99 2682 return err;
aba5acdf
SH		 2683}
2684
ab01dbbb 2685static int tcp_show_netlink_file(struct filter *f)
aba5acdf
SH		 2686{
2687 FILE *fp;
e557212e 2688 char buf[16384];
4b45ae22 2689 int err = -1;
aba5acdf
SH		 2690
2691 if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) {
2692 perror("fopen($TCPDIAG_FILE)");
4b45ae22 2693 return err;
aba5acdf
SH		 2694 }
2695
2696 while (1) {
4b45ae22 2697 int status, err2;
acd1e437 2698 struct nlmsghdr *h = (struct nlmsghdr *)buf;
82d73ea0 2699 struct sockstat s = {};
aba5acdf
SH		 2700
2701 status = fread(buf, 1, sizeof(*h), fp);
2702 if (status < 0) {
2703 perror("Reading header from $TCPDIAG_FILE");
4b45ae22 2704 break;
aba5acdf
SH		 2705 }
2706 if (status != sizeof(*h)) {
2707 perror("Unexpected EOF reading $TCPDIAG_FILE");
4b45ae22 2708 break;
aba5acdf
SH		 2709 }
2710
2711 status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp);
2712
2713 if (status < 0) {
2714 perror("Reading $TCPDIAG_FILE");
4b45ae22 2715 break;
aba5acdf
SH		 2716 }
2717 if (status + sizeof(*h) < h->nlmsg_len) {
2718 perror("Unexpected EOF reading $TCPDIAG_FILE");
4b45ae22 2719 break;
aba5acdf
SH		 2720 }
2721
2722 /* The only legal exit point */
4b45ae22
PS		 2723 if (h->nlmsg_type == NLMSG_DONE) {
2724 err = 0;
2725 break;
2726 }
aba5acdf
SH		 2727
2728 if (h->nlmsg_type == NLMSG_ERROR) {
acd1e437
SH		 2729 struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h);
2730
aba5acdf
SH		 2731 if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
2732 fprintf(stderr, "ERROR truncated\n");
2733 } else {
2734 errno = -err->error;
2735 perror("TCPDIAG answered");
2736 }
4b45ae22 2737 break;
aba5acdf
SH		 2738 }
2739
82d73ea0 2740 parse_diag_msg(h, &s);
be7e4d20 2741 s.type = IPPROTO_TCP;
82d73ea0
DA		 2742
2743 if (f && f->f && run_ssfilter(f->f, &s) == 0)
2744 continue;
2745
4b45ae22
PS		 2746 err2 = inet_show_sock(h, &s);
2747 if (err2 < 0) {
2748 err = err2;
2749 break;
2750 }
aba5acdf 2751 }
4b45ae22
PS		 2752
2753 fclose(fp);
2754 return err;
aba5acdf
SH		 2755}
2756
6c6bbc30 2757static int tcp_show(struct filter *f)
aba5acdf 2758{
ab01dbbb 2759 FILE *fp = NULL;
aba5acdf
SH		 2760 char *buf = NULL;
2761 int bufsize = 64*1024;
2762
1527a17e
VK		 2763 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2764 return 0;
2765
aba5acdf
SH		 2766 dg_proto = TCP_PROTO;
2767
2768 if (getenv("TCPDIAG_FILE"))
2769 return tcp_show_netlink_file(f);
2770
2771 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
6c6bbc30 2772 && inet_show_netlink(f, NULL, IPPROTO_TCP) == 0)
aba5acdf
SH		 2773 return 0;
2774
2775 /* Sigh... We have to parse /proc/net/tcp... */
2776
ab01dbbb 2777
aba5acdf
SH		 2778 /* Estimate amount of sockets and try to allocate
2779 * huge buffer to read all the table at one read.
2780 * Limit it by 16MB though. The assumption is: as soon as
2781 * kernel was able to hold information about N connections,
2782 * it is able to give us some memory for snapshot.
2783 */
2784 if (1) {
a221d621
BL		 2785 get_slabstat(&slabstat);
2786
aba5acdf 2787 int guess = slabstat.socks+slabstat.tcp_syns;
acd1e437 2788
aba5acdf
SH		 2789 if (f->states&(1<<SS_TIME_WAIT))
2790 guess += slabstat.tcp_tws;
2791 if (guess > (16*1024*1024)/128)
2792 guess = (16*1024*1024)/128;
2793 guess *= 128;
2794 if (guess > bufsize)
2795 bufsize = guess;
2796 }
2797 while (bufsize >= 64*1024) {
2798 if ((buf = malloc(bufsize)) != NULL)
2799 break;
2800 bufsize /= 2;
2801 }
2802 if (buf == NULL) {
2803 errno = ENOMEM;
2804 return -1;
2805 }
2806
b338a3e7 2807 if (f->families & FAMILY_MASK(AF_INET)) {
69cae645 2808 if ((fp = net_tcp_open()) == NULL)
aba5acdf 2809 goto outerr;
ab01dbbb
SH		 2810
2811 setbuffer(fp, buf, bufsize);
2812 if (generic_record_read(fp, tcp_show_line, f, AF_INET))
aba5acdf 2813 goto outerr;
ab01dbbb 2814 fclose(fp);
aba5acdf
SH		 2815 }
2816
b338a3e7 2817 if ((f->families & FAMILY_MASK(AF_INET6)) &&
69cae645 2818 (fp = net_tcp6_open()) != NULL) {
ab01dbbb
SH		 2819 setbuffer(fp, buf, bufsize);
2820 if (generic_record_read(fp, tcp_show_line, f, AF_INET6))
aba5acdf 2821 goto outerr;
ab01dbbb 2822 fclose(fp);
aba5acdf
SH		 2823 }
2824
2825 free(buf);
2826 return 0;
2827
2828outerr:
2829 do {
2830 int saved_errno = errno;
acd1e437 2831
92de1c2c 2832 free(buf);
ab01dbbb
SH		 2833 if (fp)
2834 fclose(fp);
aba5acdf
SH		 2835 errno = saved_errno;
2836 return -1;
2837 } while (0);
2838}
2839
6c6bbc30
PS		 2840static int dccp_show(struct filter *f)
2841{
2842 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2843 return 0;
2844
2845 if (!getenv("PROC_NET_DCCP") && !getenv("PROC_ROOT")
2846 && inet_show_netlink(f, NULL, IPPROTO_DCCP) == 0)
2847 return 0;
2848
2849 return 0;
2850}
2851
f89d46ad
PS		 2852static int sctp_show(struct filter *f)
2853{
2854 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2855 return 0;
2856
2857 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
2858 && inet_show_netlink(f, NULL, IPPROTO_SCTP) == 0)
2859 return 0;
2860
2861 return 0;
2862}
aba5acdf 2863
d1f28cf1 2864static int dgram_show_line(char *line, const struct filter *f, int family)
aba5acdf 2865{
055840f2 2866 struct sockstat s = {};
aba5acdf
SH		 2867 char *loc, *rem, *data;
2868 char opt[256];
2869 int n;
aba5acdf 2870
8250bc9f 2871 if (proc_inet_split_line(line, &loc, &rem, &data))
aba5acdf 2872 return -1;
aba5acdf 2873
8250bc9f 2874 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2875
8250bc9f
VK		 2876 if (!(f->states & (1 << state)))
2877 return 0;
aba5acdf 2878
8250bc9f 2879 proc_parse_inet_addr(loc, rem, family, &s);
aba5acdf
SH		 2880
2881 if (f->f && run_ssfilter(f->f, &s) == 0)
2882 return 0;
2883
2884 opt[0] = 0;
e7113c61 2885 n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
aba5acdf
SH		 2886 &s.state, &s.wq, &s.rq,
2887 &s.uid, &s.ino,
2888 &s.refcnt, &s.sk, opt);
2889
2890 if (n < 9)
2891 opt[0] = 0;
2892
be7e4d20
PS		 2893 s.type = dg_proto == UDP_PROTO ? IPPROTO_UDP : 0;
2894 inet_stats_print(&s);
aba5acdf 2895
f1b39e1b
VK		 2896 if (show_details && opt[0])
2897 printf(" opt:\"%s\"", opt);
aba5acdf 2898
8250bc9f 2899 printf("\n");
aba5acdf
SH		 2900 return 0;
2901}
2902
d1f28cf1 2903static int udp_show(struct filter *f)
aba5acdf 2904{
ab01dbbb 2905 FILE *fp = NULL;
aba5acdf 2906
1527a17e
VK		 2907 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2908 return 0;
2909
ace5cb31
VK		 2910 dg_proto = UDP_PROTO;
2911
346f8ca8
PE		 2912 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
2913 && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0)
2914 return 0;
2915
b338a3e7 2916 if (f->families&FAMILY_MASK(AF_INET)) {
69cae645 2917 if ((fp = net_udp_open()) == NULL)
aba5acdf 2918 goto outerr;
ab01dbbb 2919 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2920 goto outerr;
ab01dbbb 2921 fclose(fp);
aba5acdf
SH		 2922 }
2923
b338a3e7 2924 if ((f->families&FAMILY_MASK(AF_INET6)) &&
69cae645 2925 (fp = net_udp6_open()) != NULL) {
ab01dbbb 2926 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2927 goto outerr;
ab01dbbb 2928 fclose(fp);
aba5acdf
SH		 2929 }
2930 return 0;
2931
2932outerr:
2933 do {
2934 int saved_errno = errno;
acd1e437 2935
ab01dbbb
SH		 2936 if (fp)
2937 fclose(fp);
aba5acdf
SH		 2938 errno = saved_errno;
2939 return -1;
2940 } while (0);
2941}
2942
d1f28cf1 2943static int raw_show(struct filter *f)
aba5acdf 2944{
ab01dbbb 2945 FILE *fp = NULL;
aba5acdf 2946
1527a17e
VK		 2947 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2948 return 0;
2949
aba5acdf
SH		 2950 dg_proto = RAW_PROTO;
2951
41fe6c34
CG		 2952 if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") &&
2953 inet_show_netlink(f, NULL, IPPROTO_RAW) == 0)
2954 return 0;
2955
b338a3e7 2956 if (f->families&FAMILY_MASK(AF_INET)) {
69cae645 2957 if ((fp = net_raw_open()) == NULL)
aba5acdf 2958 goto outerr;
ab01dbbb 2959 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2960 goto outerr;
ab01dbbb 2961 fclose(fp);
aba5acdf
SH		 2962 }
2963
b338a3e7 2964 if ((f->families&FAMILY_MASK(AF_INET6)) &&
69cae645 2965 (fp = net_raw6_open()) != NULL) {
ab01dbbb 2966 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2967 goto outerr;
ab01dbbb 2968 fclose(fp);
aba5acdf
SH		 2969 }
2970 return 0;
2971
2972outerr:
2973 do {
2974 int saved_errno = errno;
acd1e437 2975
ab01dbbb
SH		 2976 if (fp)
2977 fclose(fp);
aba5acdf
SH		 2978 errno = saved_errno;
2979 return -1;
2980 } while (0);
2981}
2982
ec4d0d8a 2983#define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
aba5acdf 2984
2d0e538f 2985static void unix_list_drop_first(struct sockstat **list)
aba5acdf 2986{
2d0e538f 2987 struct sockstat *s = *list;
ec4d0d8a 2988
2d0e538f
PS		 2989 (*list) = (*list)->next;
2990 free(s->name);
2991 free(s);
aba5acdf
SH		 2992}
2993
ec4d0d8a 2994static bool unix_type_skip(struct sockstat *s, struct filter *f)
bf4ceee6
VK		 2995{
2996 if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
2997 return true;
2998 if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
2999 return true;
3000 if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
3001 return true;
3002 return false;
3003}
3004
2d0e538f 3005static void unix_stats_print(struct sockstat *s, struct filter *f)
aba5acdf 3006{
b217df10 3007 char port_name[30] = {};
aba5acdf 3008
2d0e538f 3009 sock_state_print(s);
2d791bc8 3010
2d0e538f
PS		 3011 sock_addr_print(s->name ?: "*", " ",
3012 int_to_str(s->lport, port_name), NULL);
3013 sock_addr_print(s->peer_name ?: "*", " ",
3014 int_to_str(s->rport, port_name), NULL);
116ac927 3015
2d0e538f 3016 proc_ctx_print(s);
aba5acdf
SH		 3017}
3018
8a4025f6 3019static int unix_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh,
3020 void *arg)
dfbaa90d 3021{
8a4025f6 3022 struct filter *f = (struct filter *)arg;
dfbaa90d
PE		 3023 struct unix_diag_msg *r = NLMSG_DATA(nlh);
3024 struct rtattr *tb[UNIX_DIAG_MAX+1];
99bb68ff
VK		 3025 char name[128];
3026 struct sockstat stat = { .name = "*", .peer_name = "*" };
dfbaa90d 3027
acd1e437 3028 parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr *)(r+1),
dfbaa90d
PE		 3029 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3030
bf4ceee6
VK		 3031 stat.type = r->udiag_type;
3032 stat.state = r->udiag_state;
ec4d0d8a
VK		 3033 stat.ino = stat.lport = r->udiag_ino;
3034 stat.local.family = stat.remote.family = AF_UNIX;
0d2e01c5 3035
bf4ceee6
VK		 3036 if (unix_type_skip(&stat, f))
3037 return 0;
dfbaa90d 3038
defd61ca
HFS		 3039 if (tb[UNIX_DIAG_RQLEN]) {
3040 struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]);
acd1e437 3041
bf4ceee6
VK		 3042 stat.rq = rql->udiag_rqueue;
3043 stat.wq = rql->udiag_wqueue;
defd61ca 3044 }
dfbaa90d
PE		 3045 if (tb[UNIX_DIAG_NAME]) {
3046 int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
3047
3048 memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
3049 name[len] = '\0';
1dd0cca7
SH		 3050 if (name[0] == '\0') {
3051 int i;
3052 for (i = 0; i < len; i++)
878dadc7
IB		 3053 if (name[i] == '\0')
3054 name[i] = '@';
1dd0cca7 3055 }
99bb68ff
VK		 3056 stat.name = &name[0];
3057 memcpy(stat.local.data, &stat.name, sizeof(stat.name));
bf4ceee6 3058 }
dfbaa90d 3059 if (tb[UNIX_DIAG_PEER])
ec4d0d8a 3060 stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]);
dfbaa90d 3061
29999b0f
VK		 3062 if (f->f && run_ssfilter(f->f, &stat) == 0)
3063 return 0;
3064
bf4ceee6 3065 unix_stats_print(&stat, f);
dfbaa90d 3066
45199997 3067 if (show_mem)
51ff9f24 3068 print_skmeminfo(tb, UNIX_DIAG_MEMINFO);
5b816047
PE		 3069 if (show_details) {
3070 if (tb[UNIX_DIAG_SHUTDOWN]) {
3071 unsigned char mask;
acd1e437 3072
9f1370c0 3073 mask = rta_getattr_u8(tb[UNIX_DIAG_SHUTDOWN]);
5b816047
PE		 3074 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
3075 }
3076 }
2d0e538f 3077 printf("\n");
ec4d0d8a 3078
dfbaa90d
PE		 3079 return 0;
3080}
3081
8a4025f6 3082static int handle_netlink_request(struct filter *f, struct nlmsghdr *req,
3083 size_t size, rtnl_filter_t show_one_sock)
dfbaa90d 3084{
8a4025f6 3085 int ret = -1;
3086 struct rtnl_handle rth;
dfbaa90d 3087
8a4025f6 3088 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
dfbaa90d
PE		 3089 return -1;
3090
8a4025f6 3091 rth.dump = MAGIC_SEQ;
dfbaa90d 3092
8a4025f6 3093 if (rtnl_send(&rth, req, size) < 0)
3094 goto Exit;
dfbaa90d 3095
8a4025f6 3096 if (rtnl_dump_filter(&rth, show_one_sock, f))
3097 goto Exit;
dfbaa90d 3098
8a4025f6 3099 ret = 0;
3100Exit:
3101 rtnl_close(&rth);
3102 return ret;
dfbaa90d
PE		 3103}
3104
8a4025f6 3105static int unix_show_netlink(struct filter *f)
d8402b96 3106{
5fb421d4 3107 DIAG_REQUEST(req, struct unix_diag_req r);
d8402b96
AV		 3108
3109 req.r.sdiag_family = AF_UNIX;
3110 req.r.udiag_states = f->states;
3111 req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
3112 if (show_mem)
3113 req.r.udiag_show |= UDIAG_SHOW_MEMINFO;
3114
8a4025f6 3115 return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock);
d8402b96
AV		 3116}
3117
d1f28cf1 3118static int unix_show(struct filter *f)
aba5acdf
SH		 3119{
3120 FILE *fp;
3121 char buf[256];
3122 char name[128];
3123 int newformat = 0;
3124 int cnt;
ec4d0d8a 3125 struct sockstat *list = NULL;
96d45daa
PS		 3126 const int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT,
3127 SS_ESTABLISHED, SS_CLOSING };
aba5acdf 3128
9db7bf15
VK		 3129 if (!filter_af_get(f, AF_UNIX))
3130 return 0;
3131
f25062e9
PS		 3132 if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT")
3133 && unix_show_netlink(f) == 0)
dfbaa90d
PE		 3134 return 0;
3135
ab01dbbb 3136 if ((fp = net_unix_open()) == NULL)
aba5acdf 3137 return -1;
61170fd8 3138 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3139 fclose(fp);
3140 return -1;
3141 }
aba5acdf 3142
ae665a52 3143 if (memcmp(buf, "Peer", 4) == 0)
aba5acdf
SH		 3144 newformat = 1;
3145 cnt = 0;
3146
61170fd8 3147 while (fgets(buf, sizeof(buf), fp)) {
ec4d0d8a 3148 struct sockstat *u, **insp;
aba5acdf
SH		 3149 int flags;
3150
0ee9052f 3151 if (!(u = calloc(1, sizeof(*u))))
aba5acdf 3152 break;
aba5acdf
SH		 3153
3154 if (sscanf(buf, "%x: %x %x %x %x %x %d %s",
ec4d0d8a 3155 &u->rport, &u->rq, &u->wq, &flags, &u->type,
aba5acdf
SH		 3156 &u->state, &u->ino, name) < 8)
3157 name[0] = 0;
3158
ec4d0d8a
VK		 3159 u->lport = u->ino;
3160 u->local.family = u->remote.family = AF_UNIX;
3161
3162 if (flags & (1 << 16)) {
aba5acdf 3163 u->state = SS_LISTEN;
0aa03350
PS		 3164 } else if (u->state > 0 &&
3165 u->state <= ARRAY_SIZE(unix_state_map)) {
aba5acdf 3166 u->state = unix_state_map[u->state-1];
ec4d0d8a 3167 if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport)
aba5acdf
SH		 3168 u->state = SS_ESTABLISHED;
3169 }
2d0e538f
PS		 3170 if (unix_type_skip(u, f) ||
3171 !(f->states & (1 << u->state))) {
3172 free(u);
3173 continue;
3174 }
aba5acdf
SH		 3175
3176 if (!newformat) {
ec4d0d8a 3177 u->rport = 0;
aba5acdf
SH		 3178 u->rq = 0;
3179 u->wq = 0;
3180 }
3181
2d0e538f
PS		 3182 if (name[0]) {
3183 u->name = strdup(name);
46131577
PS		 3184 if (!u->name) {
3185 free(u);
2d0e538f 3186 break;
46131577 3187 }
2d0e538f
PS		 3188 }
3189
3190 if (u->rport) {
3191 struct sockstat *p;
3192
3193 for (p = list; p; p = p->next) {
3194 if (u->rport == p->lport)
3195 break;
3196 }
3197 if (!p)
3198 u->peer_name = "?";
3199 else
3200 u->peer_name = p->name ? : "*";
3201 }
3202
3203 if (f->f) {
3204 struct sockstat st = {
3205 .local.family = AF_UNIX,
3206 .remote.family = AF_UNIX,
3207 };
3208
3209 memcpy(st.local.data, &u->name, sizeof(u->name));
3210 if (strcmp(u->peer_name, "*"))
3211 memcpy(st.remote.data, &u->peer_name,
3212 sizeof(u->peer_name));
3213 if (run_ssfilter(f->f, &st) == 0) {
3214 free(u->name);
3215 free(u);
3216 continue;
3217 }
3218 }
3219
aba5acdf
SH		 3220 insp = &list;
3221 while (*insp) {
3222 if (u->type < (*insp)->type ||
3223 (u->type == (*insp)->type &&
3224 u->ino < (*insp)->ino))
3225 break;
3226 insp = &(*insp)->next;
3227 }
3228 u->next = *insp;
3229 *insp = u;
3230
aba5acdf 3231 if (++cnt > MAX_UNIX_REMEMBER) {
2d0e538f
PS		 3232 while (list) {
3233 unix_stats_print(list, f);
3234 printf("\n");
3235
3236 unix_list_drop_first(&list);
3237 }
aba5acdf
SH		 3238 cnt = 0;
3239 }
3240 }
a3fd8e58 3241 fclose(fp);
2d0e538f 3242 while (list) {
bf4ceee6 3243 unix_stats_print(list, f);
2d0e538f
PS		 3244 printf("\n");
3245
3246 unix_list_drop_first(&list);
aba5acdf
SH		 3247 }
3248
3249 return 0;
3250}
3251
89f634f9 3252static int packet_stats_print(struct sockstat *s, const struct filter *f)
4a0053b6 3253{
b217df10
VK		 3254 const char *addr, *port;
3255 char ll_name[16];
372c30d2 3256
be7e4d20
PS		 3257 s->local.family = s->remote.family = AF_PACKET;
3258
4a0053b6 3259 if (f->f) {
89f634f9 3260 s->local.data[0] = s->prot;
89f634f9 3261 if (run_ssfilter(f->f, s) == 0)
4a0053b6
VK		 3262 return 1;
3263 }
372c30d2 3264
be7e4d20 3265 sock_state_print(s);
372c30d2 3266
b217df10
VK		 3267 if (s->prot == 3)
3268 addr = "*";
3269 else
3270 addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name));
3271
3272 if (s->iface == 0)
3273 port = "*";
3274 else
3275 port = xll_index_to_name(s->iface);
372c30d2 3276
b217df10
VK		 3277 sock_addr_print(addr, ":", port, NULL);
3278 sock_addr_print("", "*", "", NULL);
116ac927 3279
5f27ac1d 3280 proc_ctx_print(s);
116ac927 3281
f1b39e1b
VK		 3282 if (show_details)
3283 sock_details_print(s);
3284
4a0053b6
VK		 3285 return 0;
3286}
3287
2631b856
VK		 3288static void packet_show_ring(struct packet_diag_ring *ring)
3289{
3290 printf("blk_size:%d", ring->pdr_block_size);
3291 printf(",blk_nr:%d", ring->pdr_block_nr);
3292 printf(",frm_size:%d", ring->pdr_frame_size);
3293 printf(",frm_nr:%d", ring->pdr_frame_nr);
3294 printf(",tmo:%d", ring->pdr_retire_tmo);
3295 printf(",features:0x%x", ring->pdr_features);
3296}
3297
4a0053b6
VK		 3298static int packet_show_sock(const struct sockaddr_nl *addr,
3299 struct nlmsghdr *nlh, void *arg)
3300{
3301 const struct filter *f = arg;
3302 struct packet_diag_msg *r = NLMSG_DATA(nlh);
2631b856
VK		 3303 struct packet_diag_info *pinfo = NULL;
3304 struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL;
4a0053b6 3305 struct rtattr *tb[PACKET_DIAG_MAX+1];
89f634f9 3306 struct sockstat stat = {};
2631b856
VK		 3307 uint32_t fanout = 0;
3308 bool has_fanout = false;
4a0053b6 3309
acd1e437 3310 parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr *)(r+1),
4a0053b6
VK		 3311 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3312
3313 /* use /proc/net/packet if all info are not available */
3314 if (!tb[PACKET_DIAG_MEMINFO])
3315 return -1;
3316
2d791bc8
VK		 3317 stat.type = r->pdiag_type;
3318 stat.prot = r->pdiag_num;
3319 stat.ino = r->pdiag_ino;
3320 stat.state = SS_CLOSE;
f1b39e1b 3321 stat.sk = cookie_sk_get(&r->pdiag_cookie[0]);
4a0053b6
VK		 3322
3323 if (tb[PACKET_DIAG_MEMINFO]) {
3324 __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]);
acd1e437 3325
4a0053b6
VK		 3326 stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3327 }
3328
3329 if (tb[PACKET_DIAG_INFO]) {
2631b856 3330 pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
2d791bc8 3331 stat.lport = stat.iface = pinfo->pdi_index;
4a0053b6
VK		 3332 }
3333
f1b39e1b 3334 if (tb[PACKET_DIAG_UID])
9f1370c0 3335 stat.uid = rta_getattr_u32(tb[PACKET_DIAG_UID]);
f1b39e1b 3336
2631b856
VK		 3337 if (tb[PACKET_DIAG_RX_RING])
3338 ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]);
3339
3340 if (tb[PACKET_DIAG_TX_RING])
3341 ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]);
3342
3343 if (tb[PACKET_DIAG_FANOUT]) {
3344 has_fanout = true;
9f1370c0 3345 fanout = rta_getattr_u32(tb[PACKET_DIAG_FANOUT]);
2631b856
VK		 3346 }
3347
4a0053b6
VK		 3348 if (packet_stats_print(&stat, f))
3349 return 0;
3350
2631b856
VK		 3351 if (show_details) {
3352 if (pinfo) {
3353 printf("\n\tver:%d", pinfo->pdi_version);
3354 printf(" cpy_thresh:%d", pinfo->pdi_copy_thresh);
3355 printf(" flags( ");
3356 if (pinfo->pdi_flags & PDI_RUNNING)
3357 printf("running");
3358 if (pinfo->pdi_flags & PDI_AUXDATA)
3359 printf(" auxdata");
3360 if (pinfo->pdi_flags & PDI_ORIGDEV)
3361 printf(" origdev");
3362 if (pinfo->pdi_flags & PDI_VNETHDR)
3363 printf(" vnethdr");
3364 if (pinfo->pdi_flags & PDI_LOSS)
3365 printf(" loss");
3366 if (!pinfo->pdi_flags)
3367 printf("0");
3368 printf(" )");
3369 }
3370 if (ring_rx) {
3371 printf("\n\tring_rx(");
3372 packet_show_ring(ring_rx);
3373 printf(")");
3374 }
3375 if (ring_tx) {
3376 printf("\n\tring_tx(");
3377 packet_show_ring(ring_tx);
3378 printf(")");
3379 }
3380 if (has_fanout) {
3381 uint16_t type = (fanout >> 16) & 0xffff;
3382
3383 printf("\n\tfanout(");
3384 printf("id:%d,", fanout & 0xffff);
3385 printf("type:");
3386
3387 if (type == 0)
3388 printf("hash");
3389 else if (type == 1)
3390 printf("lb");
3391 else if (type == 2)
3392 printf("cpu");
3393 else if (type == 3)
3394 printf("roll");
3395 else if (type == 4)
3396 printf("random");
3397 else if (type == 5)
3398 printf("qm");
3399 else
3400 printf("0x%x", type);
3401
3402 printf(")");
3403 }
3404 }
3405
372c30d2
ND		 3406 if (show_bpf && tb[PACKET_DIAG_FILTER]) {
3407 struct sock_filter *fil =
3408 RTA_DATA(tb[PACKET_DIAG_FILTER]);
3409 int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) /
3410 sizeof(struct sock_filter);
3411
3412 printf("\n\tbpf filter (%d): ", num);
3413 while (num) {
3414 printf(" 0x%02x %u %u %u,",
3415 fil->code, fil->jt, fil->jf, fil->k);
3416 num--;
3417 fil++;
3418 }
3419 }
3420 printf("\n");
3421 return 0;
3422}
3423
8a4025f6 3424static int packet_show_netlink(struct filter *f)
372c30d2 3425{
5fb421d4 3426 DIAG_REQUEST(req, struct packet_diag_req r);
372c30d2 3427
372c30d2 3428 req.r.sdiag_family = AF_PACKET;
2631b856
VK		 3429 req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO |
3430 PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT;
372c30d2 3431
8a4025f6 3432 return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock);
372c30d2
ND		 3433}
3434
4a0053b6
VK		 3435static int packet_show_line(char *buf, const struct filter *f, int fam)
3436{
3437 unsigned long long sk;
89f634f9 3438 struct sockstat stat = {};
4a0053b6
VK		 3439 int type, prot, iface, state, rq, uid, ino;
3440
3441 sscanf(buf, "%llx %*d %d %x %d %d %u %u %u",
3442 &sk,
3443 &type, &prot, &iface, &state,
3444 &rq, &uid, &ino);
3445
3446 if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB)))
3447 return 0;
3448 if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB)))
3449 return 0;
3450
3451 stat.type = type;
3452 stat.prot = prot;
2d791bc8 3453 stat.lport = stat.iface = iface;
4a0053b6
VK		 3454 stat.state = state;
3455 stat.rq = rq;
3456 stat.uid = uid;
3457 stat.ino = ino;
2d791bc8
VK		 3458 stat.state = SS_CLOSE;
3459
4a0053b6
VK		 3460 if (packet_stats_print(&stat, f))
3461 return 0;
3462
4a0053b6
VK		 3463 printf("\n");
3464 return 0;
3465}
aba5acdf 3466
d1f28cf1 3467static int packet_show(struct filter *f)
aba5acdf
SH		 3468{
3469 FILE *fp;
b95d28c3 3470 int rc = 0;
3d0b7439 3471
9db7bf15 3472 if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE)))
b9ea445d 3473 return 0;
aba5acdf 3474
4a0053b6
VK		 3475 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
3476 packet_show_netlink(f) == 0)
372c30d2
ND		 3477 return 0;
3478
ab01dbbb 3479 if ((fp = net_packet_open()) == NULL)
aba5acdf 3480 return -1;
4a0053b6 3481 if (generic_record_read(fp, packet_show_line, f, AF_PACKET))
b95d28c3 3482 rc = -1;
aba5acdf 3483
b95d28c3
PS		 3484 fclose(fp);
3485 return rc;
aba5acdf
SH		 3486}
3487
5f24ec0e 3488static int netlink_show_one(struct filter *f,
acd1e437
SH		 3489 int prot, int pid, unsigned int groups,
3490 int state, int dst_pid, unsigned int dst_group,
129709ae
AV		 3491 int rq, int wq,
3492 unsigned long long sk, unsigned long long cb)
3493{
301826be
PS		 3494 struct sockstat st = {
3495 .state = SS_CLOSE,
3496 .rq = rq,
3497 .wq = wq,
3498 .local.family = AF_NETLINK,
3499 .remote.family = AF_NETLINK,
3500 };
acd1e437 3501
b217df10
VK		 3502 SPRINT_BUF(prot_buf) = {};
3503 const char *prot_name;
3504 char procname[64] = {};
eef43b50 3505
129709ae 3506 if (f->f) {
055840f2
VK		 3507 st.rport = -1;
3508 st.lport = pid;
3509 st.local.data[0] = prot;
055840f2 3510 if (run_ssfilter(f->f, &st) == 0)
5f24ec0e 3511 return 1;
129709ae
AV		 3512 }
3513
be7e4d20 3514 sock_state_print(&st);
eef43b50 3515
b217df10
VK		 3516 if (resolve_services)
3517 prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf));
3518 else
3519 prot_name = int_to_str(prot, prot_buf);
eef43b50 3520
129709ae 3521 if (pid == -1) {
b217df10 3522 procname[0] = '*';
129709ae
AV		 3523 } else if (resolve_services) {
3524 int done = 0;
acd1e437 3525
129709ae
AV		 3526 if (!pid) {
3527 done = 1;
b217df10 3528 strncpy(procname, "kernel", 6);
129709ae 3529 } else if (pid > 0) {
129709ae 3530 FILE *fp;
acd1e437 3531
0ee9052f 3532 snprintf(procname, sizeof(procname), "%s/%d/stat",
129709ae
AV		 3533 getenv("PROC_ROOT") ? : "/proc", pid);
3534 if ((fp = fopen(procname, "r")) != NULL) {
3535 if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
0ee9052f 3536 snprintf(procname+strlen(procname),
3537 sizeof(procname)-strlen(procname),
3538 "/%d", pid);
129709ae
AV		 3539 done = 1;
3540 }
3541 fclose(fp);
3542 }
3543 }
3544 if (!done)
b217df10 3545 int_to_str(pid, procname);
129709ae 3546 } else {
b217df10 3547 int_to_str(pid, procname);
129709ae 3548 }
f271fe01 3549
b217df10
VK		 3550 sock_addr_print(prot_name, ":", procname, NULL);
3551
f271fe01 3552 if (state == NETLINK_CONNECTED) {
b217df10
VK		 3553 char dst_group_buf[30];
3554 char dst_pid_buf[30];
acd1e437 3555
b217df10
VK		 3556 sock_addr_print(int_to_str(dst_group, dst_group_buf), ":",
3557 int_to_str(dst_pid, dst_pid_buf), NULL);
f271fe01 3558 } else {
b217df10 3559 sock_addr_print("", "*", "", NULL);
f271fe01 3560 }
129709ae 3561
116ac927 3562 char *pid_context = NULL;
acd1e437 3563
116ac927
RH		 3564 if (show_proc_ctx) {
3565 /* The pid value will either be:
3566 * 0 if destination kernel - show kernel initial context.
3567 * A valid process pid - use getpidcon.
3568 * A unique value allocated by the kernel or netlink user
3569 * to the process - show context as "not available".
3570 */
3571 if (!pid)
3572 security_get_initial_context("kernel", &pid_context);
3573 else if (pid > 0)
3574 getpidcon(pid, &pid_context);
3575
3576 if (pid_context != NULL) {
3577 printf("proc_ctx=%-*s ", serv_width, pid_context);
3578 free(pid_context);
3579 } else {
3580 printf("proc_ctx=%-*s ", serv_width, "unavailable");
3581 }
3582 }
3583
129709ae
AV		 3584 if (show_details) {
3585 printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups);
3586 }
3587 printf("\n");
3588
5f24ec0e 3589 return 0;
129709ae
AV		 3590}
3591
8a4025f6 3592static int netlink_show_sock(const struct sockaddr_nl *addr,
3593 struct nlmsghdr *nlh, void *arg)
ecb928c8 3594{
8a4025f6 3595 struct filter *f = (struct filter *)arg;
ecb928c8
AV		 3596 struct netlink_diag_msg *r = NLMSG_DATA(nlh);
3597 struct rtattr *tb[NETLINK_DIAG_MAX+1];
3598 int rq = 0, wq = 0;
3599 unsigned long groups = 0;
3600
acd1e437 3601 parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr *)(r+1),
ecb928c8
AV		 3602 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3603
3604 if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS]))
3605 groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]);
3606
3607 if (tb[NETLINK_DIAG_MEMINFO]) {
3608 const __u32 *skmeminfo;
acd1e437 3609
ecb928c8
AV		 3610 skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]);
3611
3612 rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3613 wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC];
3614 }
3615
5f24ec0e 3616 if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups,
ecb928c8 3617 r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group,
5f24ec0e
VK		 3618 rq, wq, 0, 0)) {
3619 return 0;
3620 }
ecb928c8
AV		 3621
3622 if (show_mem) {
3623 printf("\t");
3624 print_skmeminfo(tb, NETLINK_DIAG_MEMINFO);
3625 printf("\n");
3626 }
3627
3628 return 0;
3629}
3630
8a4025f6 3631static int netlink_show_netlink(struct filter *f)
ecb928c8 3632{
5fb421d4 3633 DIAG_REQUEST(req, struct netlink_diag_req r);
ecb928c8
AV		 3634
3635 req.r.sdiag_family = AF_NETLINK;
3636 req.r.sdiag_protocol = NDIAG_PROTO_ALL;
3637 req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO;
3638
8a4025f6 3639 return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock);
ecb928c8
AV		 3640}
3641
d1f28cf1 3642static int netlink_show(struct filter *f)
aba5acdf
SH		 3643{
3644 FILE *fp;
3645 char buf[256];
3646 int prot, pid;
acd1e437 3647 unsigned int groups;
aba5acdf
SH		 3648 int rq, wq, rc;
3649 unsigned long long sk, cb;
3650
9db7bf15 3651 if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE)))
b9ea445d
VK		 3652 return 0;
3653
129709ae 3654 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
8a4025f6 3655 netlink_show_netlink(f) == 0)
129709ae
AV		 3656 return 0;
3657
ab01dbbb 3658 if ((fp = net_netlink_open()) == NULL)
aba5acdf 3659 return -1;
61170fd8 3660 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3661 fclose(fp);
3662 return -1;
3663 }
aba5acdf 3664
61170fd8 3665 while (fgets(buf, sizeof(buf), fp)) {
aba5acdf
SH		 3666 sscanf(buf, "%llx %d %d %x %d %d %llx %d",
3667 &sk,
3668 &prot, &pid, &groups, &rq, &wq, &cb, &rc);
3669
f271fe01 3670 netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb);
aba5acdf
SH		 3671 }
3672
b95d28c3 3673 fclose(fp);
aba5acdf
SH		 3674 return 0;
3675}
3676
6885e3bf
CG		 3677struct sock_diag_msg {
3678 __u8 sdiag_family;
3679};
3680
3681static int generic_show_sock(const struct sockaddr_nl *addr,
3682 struct nlmsghdr *nlh, void *arg)
3683{
3684 struct sock_diag_msg *r = NLMSG_DATA(nlh);
3685 struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX };
3686
3687 switch (r->sdiag_family) {
3688 case AF_INET:
3689 case AF_INET6:
3690 return show_one_inet_sock(addr, nlh, &inet_arg);
3691 case AF_UNIX:
3692 return unix_show_sock(addr, nlh, arg);
3693 case AF_PACKET:
3694 return packet_show_sock(addr, nlh, arg);
3695 case AF_NETLINK:
3696 return netlink_show_sock(addr, nlh, arg);
3697 default:
3698 return -1;
3699 }
3700}
3701
3702static int handle_follow_request(struct filter *f)
3703{
6b224dad 3704 int ret = 0;
6885e3bf
CG		 3705 int groups = 0;
3706 struct rtnl_handle rth;
3707
b338a3e7 3708 if (f->families & FAMILY_MASK(AF_INET) && f->dbs & (1 << TCP_DB))
6885e3bf 3709 groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1);
b338a3e7 3710 if (f->families & FAMILY_MASK(AF_INET) && f->dbs & (1 << UDP_DB))
6885e3bf 3711 groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1);
b338a3e7 3712 if (f->families & FAMILY_MASK(AF_INET6) && f->dbs & (1 << TCP_DB))
6885e3bf 3713 groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1);
b338a3e7 3714 if (f->families & FAMILY_MASK(AF_INET6) && f->dbs & (1 << UDP_DB))
6885e3bf
CG		 3715 groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1);
3716
3717 if (groups == 0)
3718 return -1;
3719
3720 if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG))
3721 return -1;
3722
3723 rth.dump = 0;
3724 rth.local.nl_pid = 0;
3725
3726 if (rtnl_dump_filter(&rth, generic_show_sock, f))
6b224dad 3727 ret = -1;
6885e3bf 3728
6885e3bf
CG		 3729 rtnl_close(&rth);
3730 return ret;
3731}
3732
d1f28cf1 3733static int get_snmp_int(char *proto, char *key, int *result)
aba5acdf
SH		 3734{
3735 char buf[1024];
3736 FILE *fp;
3737 int protolen = strlen(proto);
3738 int keylen = strlen(key);
3739
3740 *result = 0;
3741
ab01dbbb 3742 if ((fp = net_snmp_open()) == NULL)
aba5acdf
SH		 3743 return -1;
3744
3745 while (fgets(buf, sizeof(buf), fp) != NULL) {
3746 char *p = buf;
3747 int pos = 0;
acd1e437 3748
aba5acdf
SH		 3749 if (memcmp(buf, proto, protolen))
3750 continue;
3751 while ((p = strchr(p, ' ')) != NULL) {
3752 pos++;
3753 p++;
3754 if (memcmp(p, key, keylen) == 0 &&
3755 (p[keylen] == ' ' || p[keylen] == '\n'))
3756 break;
3757 }
3758 if (fgets(buf, sizeof(buf), fp) == NULL)
3759 break;
3760 if (memcmp(buf, proto, protolen))
3761 break;
3762 p = buf;
3763 while ((p = strchr(p, ' ')) != NULL) {
3764 p++;
3765 if (--pos == 0) {
3766 sscanf(p, "%d", result);
3767 fclose(fp);
3768 return 0;
3769 }
3770 }
3771 }
3772
3773 fclose(fp);
3774 errno = ESRCH;
3775 return -1;
3776}
3777
3778
3779/* Get stats from sockstat */
3780
acd1e437 3781struct ssummary {
aba5acdf
SH		 3782 int socks;
3783 int tcp_mem;
3784 int tcp_total;
3785 int tcp_orphans;
3786 int tcp_tws;
3787 int tcp4_hashed;
3788 int udp4;
3789 int raw4;
3790 int frag4;
3791 int frag4_mem;
3792 int tcp6_hashed;
3793 int udp6;
3794 int raw6;
3795 int frag6;
3796 int frag6_mem;
3797};
3798
055840f2 3799static void get_sockstat_line(char *line, struct ssummary *s)
aba5acdf
SH		 3800{
3801 char id[256], rem[256];
3802
3803 if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2)
3804 return;
3805
3806 if (strcmp(id, "sockets:") == 0)
3807 sscanf(rem, "%*s%d", &s->socks);
3808 else if (strcmp(id, "UDP:") == 0)
3809 sscanf(rem, "%*s%d", &s->udp4);
3810 else if (strcmp(id, "UDP6:") == 0)
3811 sscanf(rem, "%*s%d", &s->udp6);
3812 else if (strcmp(id, "RAW:") == 0)
3813 sscanf(rem, "%*s%d", &s->raw4);
3814 else if (strcmp(id, "RAW6:") == 0)
3815 sscanf(rem, "%*s%d", &s->raw6);
3816 else if (strcmp(id, "TCP6:") == 0)
3817 sscanf(rem, "%*s%d", &s->tcp6_hashed);
3818 else if (strcmp(id, "FRAG:") == 0)
3819 sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem);
3820 else if (strcmp(id, "FRAG6:") == 0)
3821 sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem);
3822 else if (strcmp(id, "TCP:") == 0)
3823 sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d",
3824 &s->tcp4_hashed,
3825 &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem);
3826}
3827
055840f2 3828static int get_sockstat(struct ssummary *s)
aba5acdf
SH		 3829{
3830 char buf[256];
3831 FILE *fp;
3832
3833 memset(s, 0, sizeof(*s));
3834
ab01dbbb 3835 if ((fp = net_sockstat_open()) == NULL)
aba5acdf 3836 return -1;
acd1e437 3837 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3838 get_sockstat_line(buf, s);
3839 fclose(fp);
3840
ab01dbbb 3841 if ((fp = net_sockstat6_open()) == NULL)
aba5acdf 3842 return 0;
acd1e437 3843 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3844 get_sockstat_line(buf, s);
3845 fclose(fp);
3846
3847 return 0;
3848}
3849
d1f28cf1 3850static int print_summary(void)
aba5acdf 3851{
055840f2 3852 struct ssummary s;
2f938ce1 3853 int tcp_estab;
aba5acdf
SH		 3854
3855 if (get_sockstat(&s) < 0)
3856 perror("ss: get_sockstat");
2f938ce1 3857 if (get_snmp_int("Tcp:", "CurrEstab", &tcp_estab) < 0)
aba5acdf
SH		 3858 perror("ss: get_snmpstat");
3859
a221d621
BL		 3860 get_slabstat(&slabstat);
3861
aba5acdf
SH		 3862 printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks);
3863
3864 printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
3865 s.tcp_total + slabstat.tcp_syns + s.tcp_tws,
2f938ce1 3866 tcp_estab,
aba5acdf
SH		 3867 s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws),
3868 s.tcp_orphans,
3869 slabstat.tcp_syns,
3870 s.tcp_tws, slabstat.tcp_tws,
3871 slabstat.tcp_ports
3872 );
3873
3874 printf("\n");
3875 printf("Transport Total IP IPv6\n");
3876 printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-");
3877 printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6);
3878 printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6);
3879 printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed);
ae665a52 3880 printf("INET %-9d %-9d %-9d\n",
aba5acdf
SH		 3881 s.raw4+s.udp4+s.tcp4_hashed+
3882 s.raw6+s.udp6+s.tcp6_hashed,
3883 s.raw4+s.udp4+s.tcp4_hashed,
3884 s.raw6+s.udp6+s.tcp6_hashed);
3885 printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6);
3886
3887 printf("\n");
3888
3889 return 0;
3890}
3891
7a96e199 3892static void _usage(FILE *dest)
aba5acdf 3893{
7a96e199 3894 fprintf(dest,
aba5acdf
SH		 3895"Usage: ss [ OPTIONS ]\n"
3896" ss [ OPTIONS ] [ FILTER ]\n"
ff041f16
VK		 3897" -h, --help this message\n"
3898" -V, --version output version information\n"
3899" -n, --numeric don't resolve service names\n"
ab61159a 3900" -r, --resolve resolve host names\n"
ff041f16
VK		 3901" -a, --all display all sockets\n"
3902" -l, --listening display listening sockets\n"
ab61159a
SH		 3903" -o, --options show timer information\n"
3904" -e, --extended show detailed socket information\n"
3905" -m, --memory show socket memory usage\n"
ff041f16
VK		 3906" -p, --processes show process using socket\n"
3907" -i, --info show internal TCP information\n"
3908" -s, --summary show socket usage summary\n"
b0f01cf6 3909" -b, --bpf show bpf filter socket information\n"
6885e3bf 3910" -E, --events continually display sockets as they are destroyed\n"
ff041f16
VK		 3911" -Z, --context display process SELinux security contexts\n"
3912" -z, --contexts display process and socket SELinux security contexts\n"
95ce04bc 3913" -N, --net switch to the specified network namespace name\n"
ab61159a
SH		 3914"\n"
3915" -4, --ipv4 display only IP version 4 sockets\n"
3916" -6, --ipv6 display only IP version 6 sockets\n"
ff041f16
VK		 3917" -0, --packet display PACKET sockets\n"
3918" -t, --tcp display only TCP sockets\n"
f89d46ad 3919" -S, --sctp display only SCTP sockets\n"
ff041f16
VK		 3920" -u, --udp display only UDP sockets\n"
3921" -d, --dccp display only DCCP sockets\n"
3922" -w, --raw display only RAW sockets\n"
3923" -x, --unix display only Unix domain sockets\n"
ab61159a 3924" -f, --family=FAMILY display sockets of type FAMILY\n"
ebef3174 3925" FAMILY := {inet|inet6|link|unix|netlink|help}\n"
ab61159a 3926"\n"
fb2594c1 3927" -K, --kill forcibly close sockets, display what was closed\n"
7a4559f6 3928" -H, --no-header Suppress header line\n"
fb2594c1 3929"\n"
583de149 3930" -A, --query=QUERY, --socket=QUERY\n"
56dee73e 3931" QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n"
ab61159a 3932"\n"
583de149 3933" -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
ab61159a 3934" -F, --filter=FILE read filter information from FILE\n"
ff041f16
VK		 3935" FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
3936" STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
ae4e21c9 3937" TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listening|closing}\n"
ff041f16
VK		 3938" connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3939" synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3940" bucket := {syn-recv|time-wait}\n"
ae4e21c9 3941" big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listening|closing}\n"
ab61159a 3942 );
7a96e199
AH		 3943}
3944
3945static void help(void) __attribute__((noreturn));
3946static void help(void)
3947{
3948 _usage(stdout);
3949 exit(0);
3950}
3951
3952static void usage(void) __attribute__((noreturn));
3953static void usage(void)
3954{
3955 _usage(stderr);
aba5acdf
SH		 3956 exit(-1);
3957}
3958
3959
d1f28cf1 3960static int scan_state(const char *state)
aba5acdf 3961{
b710a722
PS		 3962 static const char * const sstate_namel[] = {
3963 "UNKNOWN",
3964 [SS_ESTABLISHED] = "established",
3965 [SS_SYN_SENT] = "syn-sent",
3966 [SS_SYN_RECV] = "syn-recv",
3967 [SS_FIN_WAIT1] = "fin-wait-1",
3968 [SS_FIN_WAIT2] = "fin-wait-2",
3969 [SS_TIME_WAIT] = "time-wait",
3970 [SS_CLOSE] = "unconnected",
3971 [SS_CLOSE_WAIT] = "close-wait",
3972 [SS_LAST_ACK] = "last-ack",
3973 [SS_LISTEN] = "listening",
3974 [SS_CLOSING] = "closing",
3975 };
aba5acdf 3976 int i;
acd1e437 3977
aba5acdf
SH		 3978 if (strcasecmp(state, "close") == 0 ||
3979 strcasecmp(state, "closed") == 0)
3980 return (1<<SS_CLOSE);
3981 if (strcasecmp(state, "syn-rcv") == 0)
3982 return (1<<SS_SYN_RECV);
1a5bad5a 3983 if (strcasecmp(state, "established") == 0)
aba5acdf
SH		 3984 return (1<<SS_ESTABLISHED);
3985 if (strcasecmp(state, "all") == 0)
3986 return SS_ALL;
3987 if (strcasecmp(state, "connected") == 0)
3988 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN));
1a5bad5a 3989 if (strcasecmp(state, "synchronized") == 0)
aba5acdf
SH		 3990 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT));
3991 if (strcasecmp(state, "bucket") == 0)
3992 return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT);
3993 if (strcasecmp(state, "big") == 0)
3994 return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT));
acd1e437 3995 for (i = 0; i < SS_MAX; i++) {
1a5bad5a 3996 if (strcasecmp(state, sstate_namel[i]) == 0)
aba5acdf
SH		 3997 return (1<<i);
3998 }
9db7bf15
VK		 3999
4000 fprintf(stderr, "ss: wrong state name: %s\n", state);
4001 exit(-1);
aba5acdf
SH		 4002}
4003
ab61159a
SH		 4004static const struct option long_opts[] = {
4005 { "numeric", 0, 0, 'n' },
4006 { "resolve", 0, 0, 'r' },
4007 { "options", 0, 0, 'o' },
4008 { "extended", 0, 0, 'e' },
4009 { "memory", 0, 0, 'm' },
4010 { "info", 0, 0, 'i' },
4011 { "processes", 0, 0, 'p' },
372c30d2 4012 { "bpf", 0, 0, 'b' },
6885e3bf 4013 { "events", 0, 0, 'E' },
351efcde 4014 { "dccp", 0, 0, 'd' },
ab61159a 4015 { "tcp", 0, 0, 't' },
f89d46ad 4016 { "sctp", 0, 0, 'S' },
ab61159a
SH		 4017 { "udp", 0, 0, 'u' },
4018 { "raw", 0, 0, 'w' },
4019 { "unix", 0, 0, 'x' },
4020 { "all", 0, 0, 'a' },
4021 { "listening", 0, 0, 'l' },
4022 { "ipv4", 0, 0, '4' },
4023 { "ipv6", 0, 0, '6' },
4024 { "packet", 0, 0, '0' },
4025 { "family", 1, 0, 'f' },
4026 { "socket", 1, 0, 'A' },
583de149 4027 { "query", 1, 0, 'A' },
c3f346b0 4028 { "summary", 0, 0, 's' },
583de149 4029 { "diag", 1, 0, 'D' },
ab61159a
SH		 4030 { "filter", 1, 0, 'F' },
4031 { "version", 0, 0, 'V' },
4032 { "help", 0, 0, 'h' },
116ac927
RH		 4033 { "context", 0, 0, 'Z' },
4034 { "contexts", 0, 0, 'z' },
95ce04bc 4035 { "net", 1, 0, 'N' },
fb2594c1 4036 { "kill", 0, 0, 'K' },
7a4559f6 4037 { "no-header", 0, 0, 'H' },
ab61159a 4038 { 0 }
ae665a52 4039
ab61159a
SH		 4040};
4041
aba5acdf
SH		 4042int main(int argc, char *argv[])
4043{
aba5acdf
SH		 4044 int saw_states = 0;
4045 int saw_query = 0;
4046 int do_summary = 0;
7d105b56 4047 const char *dump_tcpdiag = NULL;
aba5acdf
SH		 4048 FILE *filter_fp = NULL;
4049 int ch;
9db7bf15 4050 int state_filter = 0;
95eafe43 4051 int addrp_width, screen_width = 80;
aba5acdf 4052
168d97f9
SH		 4053 while ((ch = getopt_long(argc, argv,
4054 "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHS",
ab61159a 4055 long_opts, NULL)) != EOF) {
acd1e437 4056 switch (ch) {
aba5acdf
SH		 4057 case 'n':
4058 resolve_services = 0;
4059 break;
4060 case 'r':
4061 resolve_hosts = 1;
4062 break;
4063 case 'o':
4064 show_options = 1;
4065 break;
4066 case 'e':
4067 show_options = 1;
4068 show_details++;
4069 break;
4070 case 'm':
4071 show_mem = 1;
4072 break;
4073 case 'i':
4074 show_tcpinfo = 1;
4075 break;
4076 case 'p':
4077 show_users++;
fbc0f876 4078 user_ent_hash_build();
aba5acdf 4079 break;
372c30d2
ND		 4080 case 'b':
4081 show_options = 1;
4082 show_bpf++;
4083 break;
6885e3bf
CG		 4084 case 'E':
4085 follow_events = 1;
4086 break;
351efcde 4087 case 'd':
57ff5a10 4088 filter_db_set(&current_filter, DCCP_DB);
351efcde 4089 break;
aba5acdf 4090 case 't':
57ff5a10 4091 filter_db_set(&current_filter, TCP_DB);
aba5acdf 4092 break;
f89d46ad
PS		 4093 case 'S':
4094 filter_db_set(&current_filter, SCTP_DB);
4095 break;
aba5acdf 4096 case 'u':
57ff5a10 4097 filter_db_set(&current_filter, UDP_DB);
aba5acdf
SH		 4098 break;
4099 case 'w':
57ff5a10 4100 filter_db_set(&current_filter, RAW_DB);
aba5acdf
SH		 4101 break;
4102 case 'x':
9db7bf15 4103 filter_af_set(&current_filter, AF_UNIX);
aba5acdf
SH		 4104 break;
4105 case 'a':
9db7bf15 4106 state_filter = SS_ALL;
aba5acdf
SH		 4107 break;
4108 case 'l':
9db7bf15 4109 state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE);
aba5acdf
SH		 4110 break;
4111 case '4':
9db7bf15 4112 filter_af_set(&current_filter, AF_INET);
aba5acdf
SH		 4113 break;
4114 case '6':
9db7bf15 4115 filter_af_set(&current_filter, AF_INET6);
aba5acdf
SH		 4116 break;
4117 case '0':
9db7bf15 4118 filter_af_set(&current_filter, AF_PACKET);
aba5acdf
SH		 4119 break;
4120 case 'f':
4121 if (strcmp(optarg, "inet") == 0)
9db7bf15 4122 filter_af_set(&current_filter, AF_INET);
aba5acdf 4123 else if (strcmp(optarg, "inet6") == 0)
9db7bf15 4124 filter_af_set(&current_filter, AF_INET6);
aba5acdf 4125 else if (strcmp(optarg, "link") == 0)
9db7bf15 4126 filter_af_set(&current_filter, AF_PACKET);
aba5acdf 4127 else if (strcmp(optarg, "unix") == 0)
9db7bf15 4128 filter_af_set(&current_filter, AF_UNIX);
aba5acdf 4129 else if (strcmp(optarg, "netlink") == 0)
9db7bf15 4130 filter_af_set(&current_filter, AF_NETLINK);
aba5acdf 4131 else if (strcmp(optarg, "help") == 0)
7a96e199 4132 help();
aba5acdf 4133 else {
9db7bf15
VK		 4134 fprintf(stderr, "ss: \"%s\" is invalid family\n",
4135 optarg);
aba5acdf
SH		 4136 usage();
4137 }
4138 break;
4139 case 'A':
4140 {
4141 char *p, *p1;
acd1e437 4142
aba5acdf
SH		 4143 if (!saw_query) {
4144 current_filter.dbs = 0;
7f9dddbe 4145 state_filter = state_filter ?
acd1e437 4146 state_filter : SS_CONN;
aba5acdf
SH		 4147 saw_query = 1;
4148 do_default = 0;
4149 }
4150 p = p1 = optarg;
4151 do {
4152 if ((p1 = strchr(p, ',')) != NULL)
ae665a52 4153 *p1 = 0;
aba5acdf 4154 if (strcmp(p, "all") == 0) {
57ff5a10 4155 filter_default_dbs(&current_filter);
aba5acdf 4156 } else if (strcmp(p, "inet") == 0) {
57ff5a10
VK		 4157 filter_db_set(&current_filter, UDP_DB);
4158 filter_db_set(&current_filter, DCCP_DB);
4159 filter_db_set(&current_filter, TCP_DB);
f89d46ad 4160 filter_db_set(&current_filter, SCTP_DB);
57ff5a10 4161 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4162 } else if (strcmp(p, "udp") == 0) {
57ff5a10 4163 filter_db_set(&current_filter, UDP_DB);
351efcde 4164 } else if (strcmp(p, "dccp") == 0) {
57ff5a10 4165 filter_db_set(&current_filter, DCCP_DB);
aba5acdf 4166 } else if (strcmp(p, "tcp") == 0) {
57ff5a10 4167 filter_db_set(&current_filter, TCP_DB);
f89d46ad
PS		 4168 } else if (strcmp(p, "sctp") == 0) {
4169 filter_db_set(&current_filter, SCTP_DB);
aba5acdf 4170 } else if (strcmp(p, "raw") == 0) {
57ff5a10 4171 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4172 } else if (strcmp(p, "unix") == 0) {
57ff5a10
VK		 4173 filter_db_set(&current_filter, UNIX_ST_DB);
4174 filter_db_set(&current_filter, UNIX_DG_DB);
4175 filter_db_set(&current_filter, UNIX_SQ_DB);
1a5bad5a 4176 } else if (strcasecmp(p, "unix_stream") == 0 ||
aba5acdf 4177 strcmp(p, "u_str") == 0) {
57ff5a10 4178 filter_db_set(&current_filter, UNIX_ST_DB);
1a5bad5a 4179 } else if (strcasecmp(p, "unix_dgram") == 0 ||
aba5acdf 4180 strcmp(p, "u_dgr") == 0) {
57ff5a10 4181 filter_db_set(&current_filter, UNIX_DG_DB);
30b669d7
MY		 4182 } else if (strcasecmp(p, "unix_seqpacket") == 0 ||
4183 strcmp(p, "u_seq") == 0) {
57ff5a10 4184 filter_db_set(&current_filter, UNIX_SQ_DB);
aba5acdf 4185 } else if (strcmp(p, "packet") == 0) {
57ff5a10
VK		 4186 filter_db_set(&current_filter, PACKET_R_DB);
4187 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf
SH		 4188 } else if (strcmp(p, "packet_raw") == 0 ||
4189 strcmp(p, "p_raw") == 0) {
57ff5a10 4190 filter_db_set(&current_filter, PACKET_R_DB);
aba5acdf
SH		 4191 } else if (strcmp(p, "packet_dgram") == 0 ||
4192 strcmp(p, "p_dgr") == 0) {
57ff5a10 4193 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf 4194 } else if (strcmp(p, "netlink") == 0) {
57ff5a10 4195 filter_db_set(&current_filter, NETLINK_DB);
aba5acdf
SH		 4196 } else {
4197 fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p);
4198 usage();
4199 }
4200 p = p1 + 1;
4201 } while (p1);
4202 break;
4203 }
4204 case 's':
4205 do_summary = 1;
4206 break;
4207 case 'D':
4208 dump_tcpdiag = optarg;
4209 break;
4210 case 'F':
4211 if (filter_fp) {
4212 fprintf(stderr, "More than one filter file\n");
4213 exit(-1);
4214 }
4215 if (optarg[0] == '-')
4216 filter_fp = stdin;
4217 else
4218 filter_fp = fopen(optarg, "r");
4219 if (!filter_fp) {
4220 perror("fopen filter file");
4221 exit(-1);
4222 }
4223 break;
4224 case 'v':
4225 case 'V':
4226 printf("ss utility, iproute2-ss%s\n", SNAPSHOT);
4227 exit(0);
116ac927
RH		 4228 case 'z':
4229 show_sock_ctx++;
36df1a6e 4230 /* fall through */
116ac927
RH		 4231 case 'Z':
4232 if (is_selinux_enabled() <= 0) {
4233 fprintf(stderr, "ss: SELinux is not enabled.\n");
4234 exit(1);
4235 }
4236 show_proc_ctx++;
4237 user_ent_hash_build();
4238 break;
95ce04bc
VK		 4239 case 'N':
4240 if (netns_switch(optarg))
4241 exit(1);
4242 break;
fb2594c1
LC		 4243 case 'K':
4244 current_filter.kill = 1;
4245 break;
7a4559f6
DA		 4246 case 'H':
4247 show_header = 0;
4248 break;
aba5acdf 4249 case 'h':
7a96e199 4250 help();
f73105ab 4251 case '?':
aba5acdf
SH		 4252 default:
4253 usage();
4254 }
4255 }
4256
4257 argc -= optind;
4258 argv += optind;
4259
aba5acdf
SH		 4260 if (do_summary) {
4261 print_summary();
4262 if (do_default && argc == 0)
4263 exit(0);
4264 }
4265
aba5acdf
SH		 4266 while (argc > 0) {
4267 if (strcmp(*argv, "state") == 0) {
4268 NEXT_ARG();
4269 if (!saw_states)
9db7bf15
VK		 4270 state_filter = 0;
4271 state_filter |= scan_state(*argv);
aba5acdf
SH		 4272 saw_states = 1;
4273 } else if (strcmp(*argv, "exclude") == 0 ||
4274 strcmp(*argv, "excl") == 0) {
4275 NEXT_ARG();
4276 if (!saw_states)
9db7bf15
VK		 4277 state_filter = SS_ALL;
4278 state_filter &= ~scan_state(*argv);
aba5acdf
SH		 4279 saw_states = 1;
4280 } else {
aba5acdf
SH		 4281 break;
4282 }
4283 argc--; argv++;
4284 }
4285
9db7bf15
VK		 4286 if (do_default) {
4287 state_filter = state_filter ? state_filter : SS_CONN;
4288 filter_default_dbs(&current_filter);
9db7bf15
VK		 4289 }
4290
57ff5a10
VK		 4291 filter_states_set(&current_filter, state_filter);
4292 filter_merge_defaults(&current_filter);
4293
9db7bf15 4294 if (resolve_services && resolve_hosts &&
168d97f9 4295 (current_filter.dbs & (UNIX_DBM|INET_L4_DBM)))
9db7bf15
VK		 4296 init_service_resolver();
4297
9db7bf15
VK		 4298 if (current_filter.dbs == 0) {
4299 fprintf(stderr, "ss: no socket tables to show with such filter.\n");
4300 exit(0);
4301 }
4302 if (current_filter.families == 0) {
4303 fprintf(stderr, "ss: no families to show with such filter.\n");
4304 exit(0);
4305 }
aba5acdf
SH		 4306 if (current_filter.states == 0) {
4307 fprintf(stderr, "ss: no socket states to show with such filter.\n");
4308 exit(0);
4309 }
4310
4311 if (dump_tcpdiag) {
4312 FILE *dump_fp = stdout;
acd1e437 4313
aba5acdf
SH		 4314 if (!(current_filter.dbs & (1<<TCP_DB))) {
4315 fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n");
4316 exit(0);
4317 }
4318 if (dump_tcpdiag[0] != '-') {
4319 dump_fp = fopen(dump_tcpdiag, "w");
4320 if (!dump_tcpdiag) {
4321 perror("fopen dump file");
4322 exit(-1);
4323 }
4324 }
3fe5b534 4325 inet_show_netlink(&current_filter, dump_fp, IPPROTO_TCP);
aba5acdf
SH		 4326 fflush(dump_fp);
4327 exit(0);
4328 }
4329
1527a17e
VK		 4330 if (ssfilter_parse(&current_filter.f, argc, argv, filter_fp))
4331 usage();
4332
aba5acdf
SH		 4333 netid_width = 0;
4334 if (current_filter.dbs&(current_filter.dbs-1))
4335 netid_width = 5;
4336
4337 state_width = 0;
4338 if (current_filter.states&(current_filter.states-1))
4339 state_width = 10;
4340
aba5acdf
SH		 4341 if (isatty(STDOUT_FILENO)) {
4342 struct winsize w;
4343
4344 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) {
4345 if (w.ws_col > 0)
4346 screen_width = w.ws_col;
4347 }
4348 }
4349
4350 addrp_width = screen_width;
4351 addrp_width -= netid_width+1;
4352 addrp_width -= state_width+1;
4353 addrp_width -= 14;
4354
4355 if (addrp_width&1) {
4356 if (netid_width)
4357 netid_width++;
4358 else if (state_width)
4359 state_width++;
4360 }
4361
4362 addrp_width /= 2;
4363 addrp_width--;
4364
4365 serv_width = resolve_services ? 7 : 5;
4366
4367 if (addrp_width < 15+serv_width+1)
4368 addrp_width = 15+serv_width+1;
4369
ae665a52 4370 addr_width = addrp_width - serv_width - 1;
aba5acdf 4371
7a4559f6
DA		 4372 if (show_header) {
4373 if (netid_width)
4374 printf("%-*s ", netid_width, "Netid");
4375 if (state_width)
4376 printf("%-*s ", state_width, "State");
4377 printf("%-6s %-6s ", "Recv-Q", "Send-Q");
4378 }
aba5acdf 4379
d68e00f7 4380 /* Make enough space for the local/remote port field */
4381 addr_width -= 13;
4382 serv_width += 13;
2dc85485 4383
7a4559f6
DA		 4384 if (show_header) {
4385 printf("%*s:%-*s %*s:%-*s\n",
4386 addr_width, "Local Address", serv_width, "Port",
4387 addr_width, "Peer Address", serv_width, "Port");
4388 }
aba5acdf 4389
aba5acdf
SH		 4390 fflush(stdout);
4391
6885e3bf
CG		 4392 if (follow_events)
4393 exit(handle_follow_request(&current_filter));
4394
aba5acdf
SH		 4395 if (current_filter.dbs & (1<<NETLINK_DB))
4396 netlink_show(&current_filter);
4397 if (current_filter.dbs & PACKET_DBM)
4398 packet_show(&current_filter);
4399 if (current_filter.dbs & UNIX_DBM)
4400 unix_show(&current_filter);
4401 if (current_filter.dbs & (1<<RAW_DB))
4402 raw_show(&current_filter);
4403 if (current_filter.dbs & (1<<UDP_DB))
4404 udp_show(&current_filter);
4405 if (current_filter.dbs & (1<<TCP_DB))
6c6bbc30 4406 tcp_show(&current_filter);
351efcde 4407 if (current_filter.dbs & (1<<DCCP_DB))
6c6bbc30 4408 dccp_show(&current_filter);
f89d46ad
PS		 4409 if (current_filter.dbs & (1<<SCTP_DB))
4410 sctp_show(&current_filter);
116ac927
RH		 4411
4412 if (show_users || show_proc_ctx || show_sock_ctx)
4413 user_ent_destroy();
4414
aba5acdf
SH		 4415 return 0;
4416}
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