]> git.proxmox.com Git - mirror_iproute2.git/blame - misc/ss.c
projects / mirror_iproute2.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
ss: Get rid of single-fielded struct snmpstat
[mirror_iproute2.git] / misc / ss.c
CommitLineData
b9de3ecf 1/*
aba5acdf
SH		 2 * ss.c "sockstat", socket statistics
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
10 */
11
12#include <stdio.h>
13#include <stdlib.h>
14#include <unistd.h>
15#include <syslog.h>
16#include <fcntl.h>
17#include <sys/ioctl.h>
18#include <sys/socket.h>
19#include <sys/uio.h>
20#include <netinet/in.h>
21#include <string.h>
22#include <errno.h>
23#include <netdb.h>
24#include <arpa/inet.h>
aba5acdf
SH		 25#include <dirent.h>
26#include <fnmatch.h>
ab61159a 27#include <getopt.h>
bf4ceee6 28#include <stdbool.h>
6b376ebd 29#include <limits.h>
aba5acdf
SH		 30
31#include "utils.h"
32#include "rt_names.h"
33#include "ll_map.h"
34#include "libnetlink.h"
95ce04bc 35#include "namespace.h"
aba5acdf
SH		 36#include "SNAPSHOT.h"
37
9cb1eccf 38#include <linux/tcp.h>
f6062360 39#include <linux/sock_diag.h>
351efcde 40#include <linux/inet_diag.h>
dfbaa90d 41#include <linux/unix_diag.h>
372c30d2
ND		 42#include <linux/netdevice.h> /* for MAX_ADDR_LEN */
43#include <linux/filter.h>
44#include <linux/packet_diag.h>
ecb928c8 45#include <linux/netlink_diag.h>
f89d46ad 46#include <linux/sctp.h>
aba5acdf 47
8a4025f6 48#define MAGIC_SEQ 123456
49
5fb421d4 50#define DIAG_REQUEST(_req, _r) \
51 struct { \
52 struct nlmsghdr nlh; \
53 _r; \
54 } _req = { \
55 .nlh = { \
56 .nlmsg_type = SOCK_DIAG_BY_FAMILY, \
57 .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\
8a4025f6 58 .nlmsg_seq = MAGIC_SEQ, \
5fb421d4 59 .nlmsg_len = sizeof(_req), \
60 }, \
61 }
62
116ac927
RH		 63#if HAVE_SELINUX
64#include <selinux/selinux.h>
65#else
66/* Stubs for SELinux functions */
67static int is_selinux_enabled(void)
68{
69 return -1;
70}
71
72static int getpidcon(pid_t pid, char **context)
73{
74 *context = NULL;
75 return -1;
76}
77
78static int getfilecon(char *path, char **context)
79{
80 *context = NULL;
81 return -1;
82}
83
84static int security_get_initial_context(char *name, char **context)
85{
86 *context = NULL;
87 return -1;
88}
89#endif
90
acd1e437 91int resolve_hosts;
aba5acdf
SH		 92int resolve_services = 1;
93int preferred_family = AF_UNSPEC;
acd1e437
SH		 94int show_options;
95int show_details;
96int show_users;
97int show_mem;
98int show_tcpinfo;
99int show_bpf;
100int show_proc_ctx;
101int show_sock_ctx;
7a4559f6 102int show_header = 1;
acd1e437 103int follow_events;
f89d46ad 104int sctp_ino;
aba5acdf
SH		 105
106int netid_width;
107int state_width;
aba5acdf
SH		 108int addr_width;
109int serv_width;
aba5acdf
SH		 110
111static const char *TCP_PROTO = "tcp";
f89d46ad 112static const char *SCTP_PROTO = "sctp";
aba5acdf
SH		 113static const char *UDP_PROTO = "udp";
114static const char *RAW_PROTO = "raw";
acd1e437 115static const char *dg_proto;
aba5acdf 116
acd1e437 117enum {
aba5acdf 118 TCP_DB,
351efcde 119 DCCP_DB,
aba5acdf
SH		 120 UDP_DB,
121 RAW_DB,
122 UNIX_DG_DB,
123 UNIX_ST_DB,
30b669d7 124 UNIX_SQ_DB,
aba5acdf
SH		 125 PACKET_DG_DB,
126 PACKET_R_DB,
127 NETLINK_DB,
f89d46ad 128 SCTP_DB,
aba5acdf
SH		 129 MAX_DB
130};
131
132#define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
30b669d7 133#define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB))
aba5acdf 134#define ALL_DB ((1<<MAX_DB)-1)
168d97f9
SH		 135#define INET_L4_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<SCTP_DB))
136#define INET_DBM (INET_L4_DBM | (1<<RAW_DB))
aba5acdf
SH		 137
138enum {
7d105b56
SH		 139 SS_UNKNOWN,
140 SS_ESTABLISHED,
141 SS_SYN_SENT,
142 SS_SYN_RECV,
143 SS_FIN_WAIT1,
144 SS_FIN_WAIT2,
145 SS_TIME_WAIT,
146 SS_CLOSE,
147 SS_CLOSE_WAIT,
148 SS_LAST_ACK,
149 SS_LISTEN,
150 SS_CLOSING,
151 SS_MAX
aba5acdf
SH		 152};
153
f89d46ad
PS		 154enum {
155 SCTP_STATE_CLOSED = 0,
156 SCTP_STATE_COOKIE_WAIT = 1,
157 SCTP_STATE_COOKIE_ECHOED = 2,
158 SCTP_STATE_ESTABLISHED = 3,
159 SCTP_STATE_SHUTDOWN_PENDING = 4,
160 SCTP_STATE_SHUTDOWN_SENT = 5,
161 SCTP_STATE_SHUTDOWN_RECEIVED = 6,
162 SCTP_STATE_SHUTDOWN_ACK_SENT = 7,
163};
164
9db7bf15
VK		 165#define SS_ALL ((1 << SS_MAX) - 1)
166#define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)))
aba5acdf
SH		 167
168#include "ssfilter.h"
169
acd1e437 170struct filter {
aba5acdf
SH		 171 int dbs;
172 int states;
173 int families;
174 struct ssfilter *f;
fb2594c1 175 bool kill;
aba5acdf
SH		 176};
177
9db7bf15
VK		 178static const struct filter default_dbs[MAX_DB] = {
179 [TCP_DB] = {
180 .states = SS_CONN,
181 .families = (1 << AF_INET) | (1 << AF_INET6),
182 },
183 [DCCP_DB] = {
184 .states = SS_CONN,
185 .families = (1 << AF_INET) | (1 << AF_INET6),
186 },
187 [UDP_DB] = {
f42a4574 188 .states = (1 << SS_ESTABLISHED),
9db7bf15
VK		 189 .families = (1 << AF_INET) | (1 << AF_INET6),
190 },
191 [RAW_DB] = {
f42a4574 192 .states = (1 << SS_ESTABLISHED),
9db7bf15
VK		 193 .families = (1 << AF_INET) | (1 << AF_INET6),
194 },
195 [UNIX_DG_DB] = {
196 .states = (1 << SS_CLOSE),
197 .families = (1 << AF_UNIX),
198 },
199 [UNIX_ST_DB] = {
200 .states = SS_CONN,
201 .families = (1 << AF_UNIX),
202 },
203 [UNIX_SQ_DB] = {
204 .states = SS_CONN,
205 .families = (1 << AF_UNIX),
206 },
207 [PACKET_DG_DB] = {
208 .states = (1 << SS_CLOSE),
209 .families = (1 << AF_PACKET),
210 },
211 [PACKET_R_DB] = {
212 .states = (1 << SS_CLOSE),
213 .families = (1 << AF_PACKET),
214 },
215 [NETLINK_DB] = {
216 .states = (1 << SS_CLOSE),
217 .families = (1 << AF_NETLINK),
218 },
f89d46ad
PS		 219 [SCTP_DB] = {
220 .states = SS_CONN,
221 .families = (1 << AF_INET) | (1 << AF_INET6),
222 },
aba5acdf
SH		 223};
224
9db7bf15
VK		 225static const struct filter default_afs[AF_MAX] = {
226 [AF_INET] = {
227 .dbs = INET_DBM,
228 .states = SS_CONN,
229 },
230 [AF_INET6] = {
231 .dbs = INET_DBM,
232 .states = SS_CONN,
233 },
234 [AF_UNIX] = {
235 .dbs = UNIX_DBM,
236 .states = SS_CONN,
237 },
238 [AF_PACKET] = {
239 .dbs = PACKET_DBM,
240 .states = (1 << SS_CLOSE),
241 },
242 [AF_NETLINK] = {
243 .dbs = (1 << NETLINK_DB),
244 .states = (1 << SS_CLOSE),
245 },
246};
247
248static int do_default = 1;
249static struct filter current_filter;
250
251static void filter_db_set(struct filter *f, int db)
252{
253 f->states |= default_dbs[db].states;
9db7bf15
VK		 254 f->dbs |= 1 << db;
255 do_default = 0;
256}
257
258static void filter_af_set(struct filter *f, int af)
259{
1527a17e
VK		 260 f->states |= default_afs[af].states;
261 f->families |= 1 << af;
262 do_default = 0;
263 preferred_family = af;
9db7bf15
VK		 264}
265
266static int filter_af_get(struct filter *f, int af)
267{
268 return f->families & (1 << af);
269}
270
271static void filter_default_dbs(struct filter *f)
272{
273 filter_db_set(f, UDP_DB);
274 filter_db_set(f, DCCP_DB);
275 filter_db_set(f, TCP_DB);
276 filter_db_set(f, RAW_DB);
277 filter_db_set(f, UNIX_ST_DB);
278 filter_db_set(f, UNIX_DG_DB);
279 filter_db_set(f, UNIX_SQ_DB);
280 filter_db_set(f, PACKET_R_DB);
281 filter_db_set(f, PACKET_DG_DB);
282 filter_db_set(f, NETLINK_DB);
f89d46ad 283 filter_db_set(f, SCTP_DB);
9db7bf15
VK		 284}
285
57ff5a10 286static void filter_states_set(struct filter *f, int states)
9db7bf15 287{
57ff5a10 288 if (states)
9d320e1e 289 f->states = states;
57ff5a10 290}
9db7bf15 291
57ff5a10
VK		 292static void filter_merge_defaults(struct filter *f)
293{
294 int db;
295 int af;
9db7bf15 296
57ff5a10
VK		 297 for (db = 0; db < MAX_DB; db++) {
298 if (!(f->dbs & (1 << db)))
299 continue;
9db7bf15 300
57ff5a10
VK		 301 if (!(default_dbs[db].families & f->families))
302 f->families |= default_dbs[db].families;
303 }
304 for (af = 0; af < AF_MAX; af++) {
305 if (!(f->families & (1 << af)))
306 continue;
307
308 if (!(default_afs[af].dbs & f->dbs))
309 f->dbs |= default_afs[af].dbs;
310 }
9db7bf15 311}
aba5acdf 312
ab01dbbb 313static FILE *generic_proc_open(const char *env, const char *name)
aba5acdf 314{
ab01dbbb 315 const char *p = getenv(env);
aba5acdf 316 char store[128];
ab01dbbb 317
aba5acdf
SH		 318 if (!p) {
319 p = getenv("PROC_ROOT") ? : "/proc";
320 snprintf(store, sizeof(store)-1, "%s/%s", p, name);
321 p = store;
322 }
ab01dbbb
SH		 323
324 return fopen(p, "r");
aba5acdf 325}
0cb74a86
PS		 326#define net_tcp_open() generic_proc_open("PROC_NET_TCP", "net/tcp")
327#define net_tcp6_open() generic_proc_open("PROC_NET_TCP6", "net/tcp6")
328#define net_udp_open() generic_proc_open("PROC_NET_UDP", "net/udp")
329#define net_udp6_open() generic_proc_open("PROC_NET_UDP6", "net/udp6")
330#define net_raw_open() generic_proc_open("PROC_NET_RAW", "net/raw")
331#define net_raw6_open() generic_proc_open("PROC_NET_RAW6", "net/raw6")
332#define net_unix_open() generic_proc_open("PROC_NET_UNIX", "net/unix")
333#define net_packet_open() generic_proc_open("PROC_NET_PACKET", \
334 "net/packet")
335#define net_netlink_open() generic_proc_open("PROC_NET_NETLINK", \
336 "net/netlink")
337#define slabinfo_open() generic_proc_open("PROC_SLABINFO", "slabinfo")
338#define net_sockstat_open() generic_proc_open("PROC_NET_SOCKSTAT", \
339 "net/sockstat")
340#define net_sockstat6_open() generic_proc_open("PROC_NET_SOCKSTAT6", \
341 "net/sockstat6")
342#define net_snmp_open() generic_proc_open("PROC_NET_SNMP", "net/snmp")
343#define ephemeral_ports_open() generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", \
344 "sys/net/ipv4/ip_local_port_range")
aba5acdf 345
fbc0f876
SF		 346struct user_ent {
347 struct user_ent *next;
348 unsigned int ino;
349 int pid;
350 int fd;
116ac927
RH		 351 char *process;
352 char *process_ctx;
353 char *socket_ctx;
fbc0f876
SF		 354};
355
356#define USER_ENT_HASH_SIZE 256
357struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE];
358
359static int user_ent_hashfn(unsigned int ino)
aba5acdf 360{
fbc0f876 361 int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino;
aba5acdf 362
fbc0f876
SF		 363 return val & (USER_ENT_HASH_SIZE - 1);
364}
365
116ac927
RH		 366static void user_ent_add(unsigned int ino, char *process,
367 int pid, int fd,
368 char *proc_ctx,
369 char *sock_ctx)
fbc0f876
SF		 370{
371 struct user_ent *p, **pp;
aba5acdf 372
116ac927
RH		 373 p = malloc(sizeof(struct user_ent));
374 if (!p) {
375 fprintf(stderr, "ss: failed to malloc buffer\n");
fbc0f876 376 abort();
116ac927 377 }
fbc0f876
SF		 378 p->next = NULL;
379 p->ino = ino;
380 p->pid = pid;
381 p->fd = fd;
116ac927
RH		 382 p->process = strdup(process);
383 p->process_ctx = strdup(proc_ctx);
384 p->socket_ctx = strdup(sock_ctx);
fbc0f876
SF		 385
386 pp = &user_ent_hash[user_ent_hashfn(ino)];
387 p->next = *pp;
388 *pp = p;
389}
aba5acdf 390
116ac927
RH		 391static void user_ent_destroy(void)
392{
393 struct user_ent *p, *p_next;
394 int cnt = 0;
395
396 while (cnt != USER_ENT_HASH_SIZE) {
397 p = user_ent_hash[cnt];
398 while (p) {
399 free(p->process);
400 free(p->process_ctx);
401 free(p->socket_ctx);
402 p_next = p->next;
403 free(p);
404 p = p_next;
405 }
406 cnt++;
407 }
408}
409
fbc0f876
SF		 410static void user_ent_hash_build(void)
411{
412 const char *root = getenv("PROC_ROOT") ? : "/proc/";
413 struct dirent *d;
414 char name[1024];
415 int nameoff;
416 DIR *dir;
116ac927
RH		 417 char *pid_context;
418 char *sock_context;
419 const char *no_ctx = "unavailable";
b25bad2f 420 static int user_ent_hash_build_init;
116ac927
RH		 421
422 /* If show_users & show_proc_ctx set only do this once */
423 if (user_ent_hash_build_init != 0)
424 return;
425
426 user_ent_hash_build_init = 1;
fbc0f876 427
0ee9052f 428 strncpy(name, root, sizeof(name)-1);
429 name[sizeof(name)-1] = 0;
430
fbc0f876 431 if (strlen(name) == 0 || name[strlen(name)-1] != '/')
aba5acdf 432 strcat(name, "/");
fbc0f876 433
aba5acdf 434 nameoff = strlen(name);
fbc0f876
SF		 435
436 dir = opendir(name);
437 if (!dir)
438 return;
aba5acdf
SH		 439
440 while ((d = readdir(dir)) != NULL) {
aba5acdf 441 struct dirent *d1;
aba5acdf 442 char process[16];
116ac927 443 char *p;
fbc0f876
SF		 444 int pid, pos;
445 DIR *dir1;
446 char crap;
aba5acdf
SH		 447
448 if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1)
449 continue;
450
116ac927
RH		 451 if (getpidcon(pid, &pid_context) != 0)
452 pid_context = strdup(no_ctx);
453
0ee9052f 454 snprintf(name + nameoff, sizeof(name) - nameoff, "%d/fd/", pid);
aba5acdf 455 pos = strlen(name);
a02371fb
PS		 456 if ((dir1 = opendir(name)) == NULL) {
457 free(pid_context);
aba5acdf 458 continue;
a02371fb 459 }
aba5acdf 460
fbc0f876 461 process[0] = '\0';
116ac927 462 p = process;
aba5acdf
SH		 463
464 while ((d1 = readdir(dir1)) != NULL) {
fbc0f876
SF		 465 const char *pattern = "socket:[";
466 unsigned int ino;
aba5acdf 467 char lnk[64];
18445b3e 468 int fd;
788731b3 469 ssize_t link_len;
116ac927 470 char tmp[1024];
aba5acdf
SH		 471
472 if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1)
473 continue;
474
0ee9052f 475 snprintf(name+pos, sizeof(name) - pos, "%d", fd);
788731b3
TJ		 476
477 link_len = readlink(name, lnk, sizeof(lnk)-1);
478 if (link_len == -1)
479 continue;
480 lnk[link_len] = '\0';
481
482 if (strncmp(lnk, pattern, strlen(pattern)))
aba5acdf
SH		 483 continue;
484
fbc0f876 485 sscanf(lnk, "socket:[%u]", &ino);
aba5acdf 486
116ac927
RH		 487 snprintf(tmp, sizeof(tmp), "%s/%d/fd/%s",
488 root, pid, d1->d_name);
489
490 if (getfilecon(tmp, &sock_context) <= 0)
491 sock_context = strdup(no_ctx);
492
493 if (*p == '\0') {
aba5acdf 494 FILE *fp;
fbc0f876 495
116ac927
RH		 496 snprintf(tmp, sizeof(tmp), "%s/%d/stat",
497 root, pid);
aba5acdf 498 if ((fp = fopen(tmp, "r")) != NULL) {
d572ed4d
PS		 499 if (fscanf(fp, "%*d (%[^)])", p) < 1)
500 ; /* ignore */
aba5acdf
SH		 501 fclose(fp);
502 }
503 }
116ac927
RH		 504 user_ent_add(ino, p, pid, fd,
505 pid_context, sock_context);
506 free(sock_context);
aba5acdf 507 }
116ac927 508 free(pid_context);
aba5acdf
SH		 509 closedir(dir1);
510 }
511 closedir(dir);
fbc0f876
SF		 512}
513
116ac927
RH		 514enum entry_types {
515 USERS,
516 PROC_CTX,
517 PROC_SOCK_CTX
518};
519
520#define ENTRY_BUF_SIZE 512
acd1e437 521static int find_entry(unsigned int ino, char **buf, int type)
fbc0f876
SF		 522{
523 struct user_ent *p;
524 int cnt = 0;
525 char *ptr;
532ca40a 526 char *new_buf;
116ac927
RH		 527 int len, new_buf_len;
528 int buf_used = 0;
529 int buf_len = 0;
fbc0f876
SF		 530
531 if (!ino)
532 return 0;
533
534 p = user_ent_hash[user_ent_hashfn(ino)];
116ac927 535 ptr = *buf = NULL;
fbc0f876
SF		 536 while (p) {
537 if (p->ino != ino)
538 goto next;
539
116ac927
RH		 540 while (1) {
541 ptr = *buf + buf_used;
542 switch (type) {
543 case USERS:
544 len = snprintf(ptr, buf_len - buf_used,
545 "(\"%s\",pid=%d,fd=%d),",
546 p->process, p->pid, p->fd);
547 break;
548 case PROC_CTX:
549 len = snprintf(ptr, buf_len - buf_used,
550 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),",
551 p->process, p->pid,
552 p->process_ctx, p->fd);
553 break;
554 case PROC_SOCK_CTX:
555 len = snprintf(ptr, buf_len - buf_used,
556 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),",
557 p->process, p->pid,
558 p->process_ctx, p->fd,
559 p->socket_ctx);
560 break;
561 default:
562 fprintf(stderr, "ss: invalid type: %d\n", type);
563 abort();
564 }
fbc0f876 565
116ac927
RH		 566 if (len < 0 || len >= buf_len - buf_used) {
567 new_buf_len = buf_len + ENTRY_BUF_SIZE;
532ca40a 568 new_buf = realloc(*buf, new_buf_len);
116ac927
RH		 569 if (!new_buf) {
570 fprintf(stderr, "ss: failed to malloc buffer\n");
571 abort();
572 }
532ca40a 573 *buf = new_buf;
116ac927
RH		 574 buf_len = new_buf_len;
575 continue;
576 } else {
577 buf_used += len;
578 break;
579 }
580 }
fbc0f876 581 cnt++;
116ac927 582next:
fbc0f876
SF		 583 p = p->next;
584 }
116ac927
RH		 585 if (buf_used) {
586 ptr = *buf + buf_used;
fbc0f876 587 ptr[-1] = '\0';
116ac927 588 }
aba5acdf
SH		 589 return cnt;
590}
591
aba5acdf
SH		 592/* Get stats from slab */
593
acd1e437 594struct slabstat {
aba5acdf
SH		 595 int socks;
596 int tcp_ports;
597 int tcp_tws;
598 int tcp_syns;
599 int skbs;
600};
601
a221d621 602static struct slabstat slabstat;
aba5acdf 603
d1f28cf1 604static int get_slabstat(struct slabstat *s)
aba5acdf
SH		 605{
606 char buf[256];
607 FILE *fp;
608 int cnt;
a221d621 609 static int slabstat_valid;
b3535dd6
PS		 610 static const char * const slabstat_ids[] = {
611 "sock",
612 "tcp_bind_bucket",
613 "tcp_tw_bucket",
614 "tcp_open_request",
615 "skbuff_head_cache",
616 };
a221d621
BL		 617
618 if (slabstat_valid)
619 return 0;
aba5acdf
SH		 620
621 memset(s, 0, sizeof(*s));
622
ab01dbbb
SH		 623 fp = slabinfo_open();
624 if (!fp)
aba5acdf
SH		 625 return -1;
626
627 cnt = sizeof(*s)/sizeof(int);
628
d572ed4d
PS		 629 if (!fgets(buf, sizeof(buf), fp)) {
630 fclose(fp);
631 return -1;
632 }
acd1e437 633 while (fgets(buf, sizeof(buf), fp) != NULL) {
aba5acdf 634 int i;
acd1e437 635
62000e51 636 for (i = 0; i < ARRAY_SIZE(slabstat_ids); i++) {
aba5acdf
SH		 637 if (memcmp(buf, slabstat_ids[i], strlen(slabstat_ids[i])) == 0) {
638 sscanf(buf, "%*s%d", ((int *)s) + i);
639 cnt--;
640 break;
641 }
642 }
643 if (cnt <= 0)
644 break;
645 }
646
a221d621
BL		 647 slabstat_valid = 1;
648
aba5acdf
SH		 649 fclose(fp);
650 return 0;
651}
652
2e7e805d 653static unsigned long long cookie_sk_get(const uint32_t *cookie)
f1b39e1b 654{
2e7e805d 655 return (((unsigned long long)cookie[1] << 31) << 1) | cookie[0];
f1b39e1b
VK		 656}
657
7d105b56
SH		 658static const char *sstate_name[] = {
659 "UNKNOWN",
9cb1eccf
ED		 660 [SS_ESTABLISHED] = "ESTAB",
661 [SS_SYN_SENT] = "SYN-SENT",
662 [SS_SYN_RECV] = "SYN-RECV",
663 [SS_FIN_WAIT1] = "FIN-WAIT-1",
664 [SS_FIN_WAIT2] = "FIN-WAIT-2",
665 [SS_TIME_WAIT] = "TIME-WAIT",
666 [SS_CLOSE] = "UNCONN",
667 [SS_CLOSE_WAIT] = "CLOSE-WAIT",
668 [SS_LAST_ACK] = "LAST-ACK",
acd1e437 669 [SS_LISTEN] = "LISTEN",
9cb1eccf 670 [SS_CLOSING] = "CLOSING",
aba5acdf
SH		 671};
672
f89d46ad
PS		 673static const char *sctp_sstate_name[] = {
674 [SCTP_STATE_CLOSED] = "CLOSED",
675 [SCTP_STATE_COOKIE_WAIT] = "COOKIE_WAIT",
676 [SCTP_STATE_COOKIE_ECHOED] = "COOKIE_ECHOED",
677 [SCTP_STATE_ESTABLISHED] = "ESTAB",
678 [SCTP_STATE_SHUTDOWN_PENDING] = "SHUTDOWN_PENDING",
679 [SCTP_STATE_SHUTDOWN_SENT] = "SHUTDOWN_SENT",
680 [SCTP_STATE_SHUTDOWN_RECEIVED] = "SHUTDOWN_RECEIVED",
681 [SCTP_STATE_SHUTDOWN_ACK_SENT] = "ACK_SENT",
682};
683
7d105b56
SH		 684static const char *sstate_namel[] = {
685 "UNKNOWN",
9cb1eccf
ED		 686 [SS_ESTABLISHED] = "established",
687 [SS_SYN_SENT] = "syn-sent",
688 [SS_SYN_RECV] = "syn-recv",
689 [SS_FIN_WAIT1] = "fin-wait-1",
690 [SS_FIN_WAIT2] = "fin-wait-2",
691 [SS_TIME_WAIT] = "time-wait",
692 [SS_CLOSE] = "unconnected",
693 [SS_CLOSE_WAIT] = "close-wait",
694 [SS_LAST_ACK] = "last-ack",
acd1e437 695 [SS_LISTEN] = "listening",
9cb1eccf 696 [SS_CLOSING] = "closing",
aba5acdf
SH		 697};
698
acd1e437 699struct sockstat {
ec4d0d8a
VK		 700 struct sockstat *next;
701 unsigned int type;
89f634f9 702 uint16_t prot;
41fe6c34 703 uint16_t raw_prot;
8250bc9f
VK		 704 inet_prefix local;
705 inet_prefix remote;
706 int lport;
707 int rport;
708 int state;
709 int rq, wq;
acd1e437
SH		 710 unsigned int ino;
711 unsigned int uid;
8250bc9f
VK		 712 int refcnt;
713 unsigned int iface;
714 unsigned long long sk;
99bb68ff
VK		 715 char *name;
716 char *peer_name;
ec75249b 717 __u32 mark;
055840f2
VK		 718};
719
acd1e437 720struct dctcpstat {
055840f2
VK		 721 unsigned int ce_state;
722 unsigned int alpha;
723 unsigned int ab_ecn;
724 unsigned int ab_tot;
725 bool enabled;
726};
727
acd1e437 728struct tcpstat {
055840f2 729 struct sockstat ss;
8250bc9f
VK		 730 int timer;
731 int timeout;
732 int probes;
d2055ea5 733 char cong_alg[16];
8250bc9f 734 double rto, ato, rtt, rttvar;
d1f338b3 735 int qack, ssthresh, backoff;
8250bc9f
VK		 736 double send_bps;
737 int snd_wscale;
738 int rcv_wscale;
739 int mss;
d1f338b3 740 unsigned int cwnd;
8250bc9f
VK		 741 unsigned int lastsnd;
742 unsigned int lastrcv;
743 unsigned int lastack;
744 double pacing_rate;
745 double pacing_rate_max;
2f579872 746 double delivery_rate;
1a4dda71
ED		 747 unsigned long long bytes_acked;
748 unsigned long long bytes_received;
ecb435ea
CG		 749 unsigned int segs_out;
750 unsigned int segs_in;
414aeec9
MKL		 751 unsigned int data_segs_out;
752 unsigned int data_segs_in;
8250bc9f
VK		 753 unsigned int unacked;
754 unsigned int retrans;
755 unsigned int retrans_total;
756 unsigned int lost;
757 unsigned int sacked;
758 unsigned int fackets;
759 unsigned int reordering;
9e99e495 760 unsigned int not_sent;
8250bc9f 761 double rcv_rtt;
9e99e495 762 double min_rtt;
8250bc9f 763 int rcv_space;
b6c7fc61
YC		 764 unsigned long long busy_time;
765 unsigned long long rwnd_limited;
766 unsigned long long sndbuf_limited;
8250bc9f
VK		 767 bool has_ts_opt;
768 bool has_sack_opt;
769 bool has_ecn_opt;
770 bool has_ecnseen_opt;
771 bool has_fastopen_opt;
772 bool has_wscale_opt;
2f579872 773 bool app_limited;
8250bc9f 774 struct dctcpstat *dctcp;
2f0f9aef 775 struct tcp_bbr_info *bbr_info;
aba5acdf
SH		 776};
777
f89d46ad
PS		 778/* SCTP assocs share the same inode number with their parent endpoint. So if we
779 * have seen the inode number before, it must be an assoc instead of the next
780 * endpoint. */
781static bool is_sctp_assoc(struct sockstat *s, const char *sock_name)
782{
783 if (strcmp(sock_name, "sctp"))
784 return false;
785 if (!sctp_ino || sctp_ino != s->ino)
786 return false;
787 return true;
788}
789
be7e4d20
PS		 790static const char *unix_netid_name(int type)
791{
792 switch (type) {
793 case SOCK_STREAM:
794 return "u_str";
795 case SOCK_SEQPACKET:
796 return "u_seq";
797 case SOCK_DGRAM:
798 default:
799 return "u_dgr";
800 }
801}
802
803static const char *proto_name(int protocol)
2d791bc8 804{
be7e4d20
PS		 805 switch (protocol) {
806 case 0:
807 return "raw";
808 case IPPROTO_UDP:
809 return "udp";
810 case IPPROTO_TCP:
811 return "tcp";
812 case IPPROTO_SCTP:
813 return "sctp";
814 case IPPROTO_DCCP:
815 return "dccp";
816 }
817
818 return "???";
819}
820
821static void sock_state_print(struct sockstat *s)
822{
823 const char *sock_name;
824
825 switch (s->local.family) {
826 case AF_UNIX:
827 sock_name = unix_netid_name(s->type);
828 break;
829 case AF_INET:
830 case AF_INET6:
831 sock_name = proto_name(s->type);
832 break;
833 case AF_PACKET:
834 sock_name = s->type == SOCK_RAW ? "p_raw" : "p_dgr";
835 break;
836 case AF_NETLINK:
837 sock_name = "nl";
838 break;
839 default:
840 sock_name = "unknown";
841 }
842
2d791bc8 843 if (netid_width)
f89d46ad
PS		 844 printf("%-*s ", netid_width,
845 is_sctp_assoc(s, sock_name) ? "" : sock_name);
846 if (state_width) {
847 if (is_sctp_assoc(s, sock_name))
848 printf("`- %-*s ", state_width - 3,
849 sctp_sstate_name[s->state]);
850 else
851 printf("%-*s ", state_width, sstate_name[s->state]);
852 }
2d791bc8
VK		 853
854 printf("%-6d %-6d ", s->rq, s->wq);
855}
856
f1b39e1b
VK		 857static void sock_details_print(struct sockstat *s)
858{
859 if (s->uid)
860 printf(" uid:%u", s->uid);
861
862 printf(" ino:%u", s->ino);
863 printf(" sk:%llx", s->sk);
ec75249b
LC		 864
865 if (s->mark)
866 printf(" fwmark:0x%x", s->mark);
f1b39e1b
VK		 867}
868
b217df10
VK		 869static void sock_addr_print_width(int addr_len, const char *addr, char *delim,
870 int port_len, const char *port, const char *ifname)
871{
872 if (ifname) {
873 printf("%*s%%%s%s%-*s ", addr_len, addr, ifname, delim,
874 port_len, port);
acd1e437 875 } else {
b217df10
VK		 876 printf("%*s%s%-*s ", addr_len, addr, delim, port_len, port);
877 }
878}
879
880static void sock_addr_print(const char *addr, char *delim, const char *port,
881 const char *ifname)
882{
883 sock_addr_print_width(addr_width, addr, delim, serv_width, port, ifname);
884}
885
d1f28cf1 886static const char *print_ms_timer(int timeout)
aba5acdf
SH		 887{
888 static char buf[64];
889 int secs, msecs, minutes;
acd1e437 890
aba5acdf
SH		 891 if (timeout < 0)
892 timeout = 0;
893 secs = timeout/1000;
894 minutes = secs/60;
895 secs = secs%60;
896 msecs = timeout%1000;
897 buf[0] = 0;
898 if (minutes) {
899 msecs = 0;
900 snprintf(buf, sizeof(buf)-16, "%dmin", minutes);
901 if (minutes > 9)
902 secs = 0;
903 }
904 if (secs) {
905 if (secs > 9)
906 msecs = 0;
907 sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec");
908 }
909 if (msecs)
910 sprintf(buf+strlen(buf), "%03dms", msecs);
911 return buf;
e7113c61 912}
aba5acdf 913
22588a0e 914struct scache {
aba5acdf
SH		 915 struct scache *next;
916 int port;
917 char *name;
918 const char *proto;
919};
920
921struct scache *rlist;
922
d1f28cf1 923static void init_service_resolver(void)
aba5acdf
SH		 924{
925 char buf[128];
926 FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
596307ea
PS		 927
928 if (!fp)
929 return;
930
931 if (!fgets(buf, sizeof(buf), fp)) {
2bcc3c16 932 pclose(fp);
596307ea
PS		 933 return;
934 }
935 while (fgets(buf, sizeof(buf), fp) != NULL) {
936 unsigned int progn, port;
937 char proto[128], prog[128] = "rpc.";
938 struct scache *c;
939
940 if (sscanf(buf, "%u %*d %s %u %s",
acd1e437 941 &progn, proto, &port, prog+4) != 4)
596307ea
PS		 942 continue;
943
944 if (!(c = malloc(sizeof(*c))))
945 continue;
946
947 c->port = port;
948 c->name = strdup(prog);
949 if (strcmp(proto, TCP_PROTO) == 0)
950 c->proto = TCP_PROTO;
951 else if (strcmp(proto, UDP_PROTO) == 0)
952 c->proto = UDP_PROTO;
f89d46ad
PS		 953 else if (strcmp(proto, SCTP_PROTO) == 0)
954 c->proto = SCTP_PROTO;
596307ea
PS		 955 else
956 c->proto = NULL;
957 c->next = rlist;
958 rlist = c;
aba5acdf 959 }
596307ea 960 pclose(fp);
aba5acdf
SH		 961}
962
ab61159a
SH		 963/* Even do not try default linux ephemeral port ranges:
964 * default /etc/services contains so much of useless crap
965 * wouldbe "allocated" to this area that resolution
966 * is really harmful. I shrug each time when seeing
967 * "socks" or "cfinger" in dumps.
968 */
969static int is_ephemeral(int port)
970{
acd1e437 971 static int min = 0, max;
c29d3792
PS		 972
973 if (!min) {
ab01dbbb 974 FILE *f = ephemeral_ports_open();
acd1e437 975
c29d3792
PS		 976 if (!f || fscanf(f, "%d %d", &min, &max) < 2) {
977 min = 1024;
978 max = 4999;
ab61159a 979 }
c29d3792
PS		 980 if (f)
981 fclose(f);
ab61159a 982 }
c29d3792 983 return port >= min && port <= max;
ab61159a
SH		 984}
985
986
d1f28cf1 987static const char *__resolve_service(int port)
aba5acdf
SH		 988{
989 struct scache *c;
990
991 for (c = rlist; c; c = c->next) {
992 if (c->port == port && c->proto == dg_proto)
993 return c->name;
994 }
995
ab61159a 996 if (!is_ephemeral(port)) {
aba5acdf
SH		 997 static int notfirst;
998 struct servent *se;
acd1e437 999
aba5acdf
SH		 1000 if (!notfirst) {
1001 setservent(1);
1002 notfirst = 1;
ae665a52 1003 }
aba5acdf
SH		 1004 se = getservbyport(htons(port), dg_proto);
1005 if (se)
1006 return se->s_name;
1007 }
1008
1009 return NULL;
1010}
1011
22588a0e
ED		 1012#define SCACHE_BUCKETS 1024
1013static struct scache *cache_htab[SCACHE_BUCKETS];
aba5acdf 1014
d1f28cf1 1015static const char *resolve_service(int port)
aba5acdf
SH		 1016{
1017 static char buf[128];
22588a0e
ED		 1018 struct scache *c;
1019 const char *res;
1020 int hash;
aba5acdf
SH		 1021
1022 if (port == 0) {
1023 buf[0] = '*';
1024 buf[1] = 0;
1025 return buf;
1026 }
1027
22588a0e
ED		 1028 if (!resolve_services)
1029 goto do_numeric;
aba5acdf 1030
22588a0e
ED		 1031 if (dg_proto == RAW_PROTO)
1032 return inet_proto_n2a(port, buf, sizeof(buf));
1033
1034
1035 hash = (port^(((unsigned long)dg_proto)>>2)) % SCACHE_BUCKETS;
1036
1037 for (c = cache_htab[hash]; c; c = c->next) {
1038 if (c->port == port && c->proto == dg_proto)
1039 goto do_cache;
aba5acdf
SH		 1040 }
1041
22588a0e
ED		 1042 c = malloc(sizeof(*c));
1043 if (!c)
1044 goto do_numeric;
1045 res = __resolve_service(port);
1046 c->port = port;
1047 c->name = res ? strdup(res) : NULL;
1048 c->proto = dg_proto;
1049 c->next = cache_htab[hash];
1050 cache_htab[hash] = c;
1051
1052do_cache:
1053 if (c->name)
1054 return c->name;
1055
1056do_numeric:
aba5acdf
SH		 1057 sprintf(buf, "%u", port);
1058 return buf;
1059}
1060
b217df10 1061static void inet_addr_print(const inet_prefix *a, int port, unsigned int ifindex)
aba5acdf
SH		 1062{
1063 char buf[1024];
1064 const char *ap = buf;
b217df10
VK		 1065 int est_len = addr_width;
1066 const char *ifname = NULL;
aba5acdf
SH		 1067
1068 if (a->family == AF_INET) {
1069 if (a->data[0] == 0) {
1070 buf[0] = '*';
1071 buf[1] = 0;
1072 } else {
a418e451 1073 ap = format_host(AF_INET, 4, a->data);
aba5acdf
SH		 1074 }
1075 } else {
a418e451 1076 ap = format_host(a->family, 16, a->data);
aba5acdf
SH		 1077 est_len = strlen(ap);
1078 if (est_len <= addr_width)
1079 est_len = addr_width;
1080 else
1081 est_len = addr_width + ((est_len-addr_width+3)/4)*4;
1082 }
b217df10 1083
7c8a3cfb 1084 if (ifindex) {
b217df10
VK		 1085 ifname = ll_index_to_name(ifindex);
1086 est_len -= strlen(ifname) + 1; /* +1 for percent char */
4fcfb6bc
MS		 1087 if (est_len < 0)
1088 est_len = 0;
b217df10 1089 }
7c8a3cfb 1090
b217df10
VK		 1091 sock_addr_print_width(est_len, ap, ":", serv_width, resolve_service(port),
1092 ifname);
aba5acdf
SH		 1093}
1094
acd1e437 1095struct aafilter {
aba5acdf
SH		 1096 inet_prefix addr;
1097 int port;
2d293212 1098 unsigned int iface;
ec75249b
LC		 1099 __u32 mark;
1100 __u32 mask;
aba5acdf
SH		 1101 struct aafilter *next;
1102};
1103
d1f28cf1
SH		 1104static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p,
1105 int plen)
aba5acdf
SH		 1106{
1107 if (!inet_addr_match(a, p, plen))
1108 return 0;
7d105b56 1109
aba5acdf
SH		 1110 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1111 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1112 * sockets. Fair? */
1113 if (p->family == AF_INET && a->family == AF_INET6) {
1114 if (a->data[0] == 0 && a->data[1] == 0 &&
1115 a->data[2] == htonl(0xffff)) {
1116 inet_prefix tmp = *a;
acd1e437 1117
aba5acdf
SH		 1118 tmp.data[0] = a->data[3];
1119 return inet_addr_match(&tmp, p, plen);
1120 }
1121 }
1122 return 1;
1123}
1124
d1f28cf1 1125static int unix_match(const inet_prefix *a, const inet_prefix *p)
aba5acdf 1126{
99bb68ff 1127 char *addr, *pattern;
acd1e437 1128
99bb68ff
VK		 1129 memcpy(&addr, a->data, sizeof(addr));
1130 memcpy(&pattern, p->data, sizeof(pattern));
aba5acdf
SH		 1131 if (pattern == NULL)
1132 return 1;
1133 if (addr == NULL)
1134 addr = "";
1135 return !fnmatch(pattern, addr, 0);
1136}
1137
055840f2 1138static int run_ssfilter(struct ssfilter *f, struct sockstat *s)
aba5acdf
SH		 1139{
1140 switch (f->type) {
1141 case SSF_S_AUTO:
1142 {
aba5acdf 1143 if (s->local.family == AF_UNIX) {
99bb68ff 1144 char *p;
acd1e437 1145
99bb68ff 1146 memcpy(&p, s->local.data, sizeof(p));
aba5acdf 1147 return p == NULL || (p[0] == '@' && strlen(p) == 6 &&
ae665a52 1148 strspn(p+1, "0123456789abcdef") == 5);
aba5acdf
SH		 1149 }
1150 if (s->local.family == AF_PACKET)
bbd303d1 1151 return s->lport == 0 && s->local.data[0] == 0;
aba5acdf
SH		 1152 if (s->local.family == AF_NETLINK)
1153 return s->lport < 0;
1154
c29d3792 1155 return is_ephemeral(s->lport);
aba5acdf
SH		 1156 }
1157 case SSF_DCOND:
1158 {
acd1e437
SH		 1159 struct aafilter *a = (void *)f->pred;
1160
aba5acdf
SH		 1161 if (a->addr.family == AF_UNIX)
1162 return unix_match(&s->remote, &a->addr);
1163 if (a->port != -1 && a->port != s->rport)
1164 return 0;
1165 if (a->addr.bitlen) {
1166 do {
1167 if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen))
1168 return 1;
1169 } while ((a = a->next) != NULL);
1170 return 0;
1171 }
1172 return 1;
1173 }
1174 case SSF_SCOND:
1175 {
acd1e437
SH		 1176 struct aafilter *a = (void *)f->pred;
1177
aba5acdf
SH		 1178 if (a->addr.family == AF_UNIX)
1179 return unix_match(&s->local, &a->addr);
1180 if (a->port != -1 && a->port != s->lport)
1181 return 0;
1182 if (a->addr.bitlen) {
1183 do {
1184 if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen))
1185 return 1;
ae665a52 1186 } while ((a = a->next) != NULL);
aba5acdf
SH		 1187 return 0;
1188 }
1189 return 1;
1190 }
1191 case SSF_D_GE:
1192 {
acd1e437
SH		 1193 struct aafilter *a = (void *)f->pred;
1194
aba5acdf
SH		 1195 return s->rport >= a->port;
1196 }
1197 case SSF_D_LE:
1198 {
acd1e437
SH		 1199 struct aafilter *a = (void *)f->pred;
1200
aba5acdf
SH		 1201 return s->rport <= a->port;
1202 }
1203 case SSF_S_GE:
1204 {
acd1e437
SH		 1205 struct aafilter *a = (void *)f->pred;
1206
aba5acdf
SH		 1207 return s->lport >= a->port;
1208 }
1209 case SSF_S_LE:
1210 {
acd1e437
SH		 1211 struct aafilter *a = (void *)f->pred;
1212
aba5acdf
SH		 1213 return s->lport <= a->port;
1214 }
2d293212
DA		 1215 case SSF_DEVCOND:
1216 {
1217 struct aafilter *a = (void *)f->pred;
aba5acdf 1218
2d293212 1219 return s->iface == a->iface;
ec75249b
LC		 1220 }
1221 case SSF_MARKMASK:
1222 {
1223 struct aafilter *a = (void *)f->pred;
1224
1225 return (s->mark & a->mask) == a->mark;
2d293212 1226 }
aba5acdf
SH		 1227 /* Yup. It is recursion. Sorry. */
1228 case SSF_AND:
1229 return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s);
1230 case SSF_OR:
1231 return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s);
1232 case SSF_NOT:
1233 return !run_ssfilter(f->pred, s);
1234 default:
1235 abort();
1236 }
1237}
1238
ae665a52 1239/* Relocate external jumps by reloc. */
b4b0b7d5 1240static void ssfilter_patch(char *a, int len, int reloc)
aba5acdf
SH		 1241{
1242 while (len > 0) {
acd1e437
SH		 1243 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)a;
1244
aba5acdf
SH		 1245 if (op->no == len+4)
1246 op->no += reloc;
1247 len -= op->yes;
1248 a += op->yes;
1249 }
1250 if (len < 0)
1251 abort();
1252}
1253
b4b0b7d5 1254static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
aba5acdf
SH		 1255{
1256 switch (f->type) {
1257 case SSF_S_AUTO:
1258 {
acd1e437
SH		 1259 if (!(*bytecode = malloc(4))) abort();
1260 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
df39de8d 1261 return 4;
aba5acdf
SH		 1262 }
1263 case SSF_DCOND:
1264 case SSF_SCOND:
1265 {
acd1e437 1266 struct aafilter *a = (void *)f->pred;
aba5acdf
SH		 1267 struct aafilter *b;
1268 char *ptr;
351efcde 1269 int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND);
aba5acdf
SH		 1270 int len = 0;
1271
acd1e437 1272 for (b = a; b; b = b->next) {
351efcde 1273 len += 4 + sizeof(struct inet_diag_hostcond);
aba5acdf
SH		 1274 if (a->addr.family == AF_INET6)
1275 len += 16;
1276 else
1277 len += 4;
1278 if (b->next)
1279 len += 4;
1280 }
1281 if (!(ptr = malloc(len))) abort();
1282 *bytecode = ptr;
acd1e437 1283 for (b = a; b; b = b->next) {
351efcde 1284 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr;
aba5acdf 1285 int alen = (a->addr.family == AF_INET6 ? 16 : 4);
351efcde 1286 int oplen = alen + 4 + sizeof(struct inet_diag_hostcond);
acd1e437 1287 struct inet_diag_hostcond *cond = (struct inet_diag_hostcond *)(ptr+4);
aba5acdf 1288
351efcde 1289 *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 };
aba5acdf
SH		 1290 cond->family = a->addr.family;
1291 cond->port = a->port;
1292 cond->prefix_len = a->addr.bitlen;
1293 memcpy(cond->addr, a->addr.data, alen);
1294 ptr += oplen;
1295 if (b->next) {
351efcde
SH		 1296 op = (struct inet_diag_bc_op *)ptr;
1297 *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)};
aba5acdf
SH		 1298 ptr += 4;
1299 }
1300 }
1301 return ptr - *bytecode;
1302 }
1303 case SSF_D_GE:
1304 {
acd1e437
SH		 1305 struct aafilter *x = (void *)f->pred;
1306
1307 if (!(*bytecode = malloc(8))) abort();
1308 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 };
1309 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1310 return 8;
1311 }
1312 case SSF_D_LE:
1313 {
acd1e437
SH		 1314 struct aafilter *x = (void *)f->pred;
1315
1316 if (!(*bytecode = malloc(8))) abort();
1317 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 };
1318 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1319 return 8;
1320 }
1321 case SSF_S_GE:
1322 {
acd1e437
SH		 1323 struct aafilter *x = (void *)f->pred;
1324
1325 if (!(*bytecode = malloc(8))) abort();
1326 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 };
1327 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1328 return 8;
1329 }
1330 case SSF_S_LE:
1331 {
acd1e437
SH		 1332 struct aafilter *x = (void *)f->pred;
1333
1334 if (!(*bytecode = malloc(8))) abort();
1335 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 };
1336 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1337 return 8;
1338 }
1339
1340 case SSF_AND:
1341 {
376fb868 1342 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1343 int l1, l2;
acd1e437 1344
aba5acdf
SH		 1345 l1 = ssfilter_bytecompile(f->pred, &a1);
1346 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1347 if (!l1 || !l2) {
1348 free(a1);
1349 free(a2);
1350 return 0;
1351 }
aba5acdf
SH		 1352 if (!(a = malloc(l1+l2))) abort();
1353 memcpy(a, a1, l1);
1354 memcpy(a+l1, a2, l2);
1355 free(a1); free(a2);
1356 ssfilter_patch(a, l1, l2);
1357 *bytecode = a;
1358 return l1+l2;
1359 }
1360 case SSF_OR:
1361 {
376fb868 1362 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1363 int l1, l2;
acd1e437 1364
aba5acdf
SH		 1365 l1 = ssfilter_bytecompile(f->pred, &a1);
1366 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1367 if (!l1 || !l2) {
1368 free(a1);
1369 free(a2);
1370 return 0;
1371 }
aba5acdf
SH		 1372 if (!(a = malloc(l1+l2+4))) abort();
1373 memcpy(a, a1, l1);
1374 memcpy(a+l1+4, a2, l2);
1375 free(a1); free(a2);
acd1e437 1376 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 };
aba5acdf
SH		 1377 *bytecode = a;
1378 return l1+l2+4;
1379 }
1380 case SSF_NOT:
1381 {
376fb868 1382 char *a1 = NULL, *a;
2a4fa1c3 1383 int l1;
acd1e437 1384
aba5acdf 1385 l1 = ssfilter_bytecompile(f->pred, &a1);
376fb868
DA		 1386 if (!l1) {
1387 free(a1);
1388 return 0;
1389 }
aba5acdf
SH		 1390 if (!(a = malloc(l1+4))) abort();
1391 memcpy(a, a1, l1);
1392 free(a1);
acd1e437 1393 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 };
aba5acdf
SH		 1394 *bytecode = a;
1395 return l1+4;
2d293212
DA		 1396 }
1397 case SSF_DEVCOND:
1398 {
1399 /* bytecompile for SSF_DEVCOND not supported yet */
1400 return 0;
ec75249b
LC		 1401 }
1402 case SSF_MARKMASK:
1403 {
1404 struct aafilter *a = (void *)f->pred;
1405 struct instr {
1406 struct inet_diag_bc_op op;
1407 struct inet_diag_markcond cond;
1408 };
1409 int inslen = sizeof(struct instr);
1410
1411 if (!(*bytecode = malloc(inslen))) abort();
1412 ((struct instr *)*bytecode)[0] = (struct instr) {
1413 { INET_DIAG_BC_MARK_COND, inslen, inslen + 4 },
1414 { a->mark, a->mask},
1415 };
1416
1417 return inslen;
aba5acdf
SH		 1418 }
1419 default:
1420 abort();
1421 }
1422}
1423
b4b0b7d5 1424static int remember_he(struct aafilter *a, struct hostent *he)
aba5acdf 1425{
ae665a52 1426 char **ptr = he->h_addr_list;
aba5acdf
SH		 1427 int cnt = 0;
1428 int len;
1429
1430 if (he->h_addrtype == AF_INET)
1431 len = 4;
1432 else if (he->h_addrtype == AF_INET6)
1433 len = 16;
1434 else
1435 return 0;
1436
1437 while (*ptr) {
1438 struct aafilter *b = a;
acd1e437 1439
aba5acdf
SH		 1440 if (a->addr.bitlen) {
1441 if ((b = malloc(sizeof(*b))) == NULL)
1442 return cnt;
1443 *b = *a;
1444 b->next = a->next;
1445 a->next = b;
1446 }
1447 memcpy(b->addr.data, *ptr, len);
1448 b->addr.bytelen = len;
1449 b->addr.bitlen = len*8;
1450 b->addr.family = he->h_addrtype;
1451 ptr++;
1452 cnt++;
1453 }
1454 return cnt;
1455}
1456
b4b0b7d5 1457static int get_dns_host(struct aafilter *a, const char *addr, int fam)
aba5acdf
SH		 1458{
1459 static int notfirst;
1460 int cnt = 0;
1461 struct hostent *he;
1462
1463 a->addr.bitlen = 0;
1464 if (!notfirst) {
1465 sethostent(1);
1466 notfirst = 1;
1467 }
1468 he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam);
1469 if (he)
1470 cnt = remember_he(a, he);
1471 if (fam == AF_UNSPEC) {
1472 he = gethostbyname2(addr, AF_INET6);
1473 if (he)
1474 cnt += remember_he(a, he);
1475 }
1476 return !cnt;
1477}
1478
acd1e437 1479static int xll_initted;
aba5acdf 1480
b4b0b7d5 1481static void xll_init(void)
aba5acdf
SH		 1482{
1483 struct rtnl_handle rth;
acd1e437 1484
d2468da0
SH		 1485 if (rtnl_open(&rth, 0) < 0)
1486 exit(1);
1487
aba5acdf
SH		 1488 ll_init_map(&rth);
1489 rtnl_close(&rth);
1490 xll_initted = 1;
1491}
1492
b4b0b7d5 1493static const char *xll_index_to_name(int index)
aba5acdf
SH		 1494{
1495 if (!xll_initted)
1496 xll_init();
1497 return ll_index_to_name(index);
1498}
1499
b4b0b7d5 1500static int xll_name_to_index(const char *dev)
aba5acdf
SH		 1501{
1502 if (!xll_initted)
1503 xll_init();
1504 return ll_name_to_index(dev);
1505}
1506
2d293212
DA		 1507void *parse_devcond(char *name)
1508{
1509 struct aafilter a = { .iface = 0 };
1510 struct aafilter *res;
1511
1512 a.iface = xll_name_to_index(name);
1513 if (a.iface == 0) {
1514 char *end;
930d3f28 1515 unsigned long n;
2d293212 1516
930d3f28
DA		 1517 n = strtoul(name, &end, 0);
1518 if (!end || end == name || *end || n > UINT_MAX)
2d293212 1519 return NULL;
930d3f28
DA		 1520
1521 a.iface = n;
2d293212
DA		 1522 }
1523
1524 res = malloc(sizeof(*res));
1525 *res = a;
1526
1527 return res;
1528}
1529
7871f7db 1530void *parse_hostcond(char *addr, bool is_port)
aba5acdf
SH		 1531{
1532 char *port = NULL;
1527a17e 1533 struct aafilter a = { .port = -1 };
aba5acdf 1534 struct aafilter *res;
1527a17e 1535 int fam = preferred_family;
9db7bf15 1536 struct filter *f = &current_filter;
aba5acdf 1537
1527a17e 1538 if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) {
aba5acdf 1539 char *p;
acd1e437 1540
aba5acdf
SH		 1541 a.addr.family = AF_UNIX;
1542 if (strncmp(addr, "unix:", 5) == 0)
acd1e437 1543 addr += 5;
aba5acdf
SH		 1544 p = strdup(addr);
1545 a.addr.bitlen = 8*strlen(p);
99bb68ff 1546 memcpy(a.addr.data, &p, sizeof(p));
9db7bf15 1547 fam = AF_UNIX;
aba5acdf
SH		 1548 goto out;
1549 }
1550
1527a17e 1551 if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) {
aba5acdf
SH		 1552 a.addr.family = AF_PACKET;
1553 a.addr.bitlen = 0;
1554 if (strncmp(addr, "link:", 5) == 0)
acd1e437 1555 addr += 5;
aba5acdf
SH		 1556 port = strchr(addr, ':');
1557 if (port) {
1558 *port = 0;
1559 if (port[1] && strcmp(port+1, "*")) {
1560 if (get_integer(&a.port, port+1, 0)) {
1561 if ((a.port = xll_name_to_index(port+1)) <= 0)
1562 return NULL;
1563 }
1564 }
1565 }
1566 if (addr[0] && strcmp(addr, "*")) {
1567 unsigned short tmp;
acd1e437 1568
aba5acdf
SH		 1569 a.addr.bitlen = 32;
1570 if (ll_proto_a2n(&tmp, addr))
1571 return NULL;
1572 a.addr.data[0] = ntohs(tmp);
1573 }
9db7bf15 1574 fam = AF_PACKET;
aba5acdf
SH		 1575 goto out;
1576 }
1577
1527a17e 1578 if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) {
aba5acdf
SH		 1579 a.addr.family = AF_NETLINK;
1580 a.addr.bitlen = 0;
1581 if (strncmp(addr, "netlink:", 8) == 0)
acd1e437 1582 addr += 8;
aba5acdf
SH		 1583 port = strchr(addr, ':');
1584 if (port) {
1585 *port = 0;
1586 if (port[1] && strcmp(port+1, "*")) {
1587 if (get_integer(&a.port, port+1, 0)) {
1588 if (strcmp(port+1, "kernel") == 0)
1589 a.port = 0;
1590 else
1591 return NULL;
1592 }
1593 }
1594 }
1595 if (addr[0] && strcmp(addr, "*")) {
1596 a.addr.bitlen = 32;
b00daf6a 1597 if (nl_proto_a2n(&a.addr.data[0], addr) == -1)
1598 return NULL;
aba5acdf 1599 }
9db7bf15 1600 fam = AF_NETLINK;
aba5acdf
SH		 1601 goto out;
1602 }
1603
1527a17e 1604 if (fam == AF_INET || !strncmp(addr, "inet:", 5)) {
aba5acdf 1605 fam = AF_INET;
1527a17e
VK		 1606 if (!strncmp(addr, "inet:", 5))
1607 addr += 5;
1608 } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) {
aba5acdf 1609 fam = AF_INET6;
1527a17e
VK		 1610 if (!strncmp(addr, "inet6:", 6))
1611 addr += 6;
aba5acdf
SH		 1612 }
1613
1614 /* URL-like literal [] */
1615 if (addr[0] == '[') {
1616 addr++;
1617 if ((port = strchr(addr, ']')) == NULL)
1618 return NULL;
1619 *port++ = 0;
1620 } else if (addr[0] == '*') {
1621 port = addr+1;
1622 } else {
1623 port = strrchr(strchr(addr, '/') ? : addr, ':');
1624 }
7871f7db
VK		 1625
1626 if (is_port)
1627 port = addr;
1628
aba5acdf 1629 if (port && *port) {
7871f7db
VK		 1630 if (*port == ':')
1631 *port++ = 0;
1632
aba5acdf
SH		 1633 if (*port && *port != '*') {
1634 if (get_integer(&a.port, port, 0)) {
1635 struct servent *se1 = NULL;
1636 struct servent *se2 = NULL;
acd1e437 1637
aba5acdf
SH		 1638 if (current_filter.dbs&(1<<UDP_DB))
1639 se1 = getservbyname(port, UDP_PROTO);
1640 if (current_filter.dbs&(1<<TCP_DB))
1641 se2 = getservbyname(port, TCP_PROTO);
1642 if (se1 && se2 && se1->s_port != se2->s_port) {
1643 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1644 return NULL;
1645 }
1646 if (!se1)
1647 se1 = se2;
1648 if (se1) {
1649 a.port = ntohs(se1->s_port);
1650 } else {
1651 struct scache *s;
acd1e437 1652
aba5acdf
SH		 1653 for (s = rlist; s; s = s->next) {
1654 if ((s->proto == UDP_PROTO &&
1655 (current_filter.dbs&(1<<UDP_DB))) ||
1656 (s->proto == TCP_PROTO &&
1657 (current_filter.dbs&(1<<TCP_DB)))) {
1658 if (s->name && strcmp(s->name, port) == 0) {
1659 if (a.port > 0 && a.port != s->port) {
1660 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1661 return NULL;
1662 }
1663 a.port = s->port;
1664 }
1665 }
1666 }
1667 if (a.port <= 0) {
1668 fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port);
1669 return NULL;
1670 }
1671 }
1672 }
1673 }
1674 }
7871f7db 1675 if (!is_port && addr && *addr && *addr != '*') {
aba5acdf
SH		 1676 if (get_prefix_1(&a.addr, addr, fam)) {
1677 if (get_dns_host(&a, addr, fam)) {
1678 fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr);
1679 return NULL;
1680 }
1681 }
1682 }
1683
9db7bf15 1684out:
1527a17e 1685 if (fam != AF_UNSPEC) {
e56a959e 1686 int states = f->states;
1527a17e 1687 f->families = 0;
9db7bf15 1688 filter_af_set(f, fam);
e56a959e 1689 filter_states_set(f, states);
1527a17e 1690 }
9db7bf15 1691
aba5acdf
SH		 1692 res = malloc(sizeof(*res));
1693 if (res)
1694 memcpy(res, &a, sizeof(a));
1695 return res;
1696}
1697
ec75249b
LC		 1698void *parse_markmask(const char *markmask)
1699{
1700 struct aafilter a, *res;
1701
1702 if (strchr(markmask, '/')) {
1703 if (sscanf(markmask, "%i/%i", &a.mark, &a.mask) != 2)
1704 return NULL;
1705 } else {
1706 a.mask = 0xffffffff;
1707 if (sscanf(markmask, "%i", &a.mark) != 1)
1708 return NULL;
1709 }
1710
1711 res = malloc(sizeof(*res));
1712 if (res)
1713 memcpy(res, &a, sizeof(a));
1714 return res;
1715}
1716
5f27ac1d 1717static void proc_ctx_print(struct sockstat *s)
8250bc9f 1718{
5f27ac1d 1719 char *buf;
8250bc9f 1720
8250bc9f
VK		 1721 if (show_proc_ctx || show_sock_ctx) {
1722 if (find_entry(s->ino, &buf,
1723 (show_proc_ctx & show_sock_ctx) ?
1724 PROC_SOCK_CTX : PROC_CTX) > 0) {
1725 printf(" users:(%s)", buf);
1726 free(buf);
1727 }
1728 } else if (show_users) {
1729 if (find_entry(s->ino, &buf, USERS) > 0) {
1730 printf(" users:(%s)", buf);
1731 free(buf);
1732 }
1733 }
1734}
1735
5f27ac1d
PS		 1736static void inet_stats_print(struct sockstat *s)
1737{
1738 sock_state_print(s);
1739
1740 inet_addr_print(&s->local, s->lport, s->iface);
1741 inet_addr_print(&s->remote, s->rport, 0);
1742
1743 proc_ctx_print(s);
1744}
1745
055840f2 1746static int proc_parse_inet_addr(char *loc, char *rem, int family, struct
acd1e437 1747 sockstat * s)
8250bc9f
VK		 1748{
1749 s->local.family = s->remote.family = family;
1750 if (family == AF_INET) {
acd1e437
SH		 1751 sscanf(loc, "%x:%x", s->local.data, (unsigned *)&s->lport);
1752 sscanf(rem, "%x:%x", s->remote.data, (unsigned *)&s->rport);
8250bc9f
VK		 1753 s->local.bytelen = s->remote.bytelen = 4;
1754 return 0;
1755 } else {
1756 sscanf(loc, "%08x%08x%08x%08x:%x",
1757 s->local.data,
1758 s->local.data + 1,
1759 s->local.data + 2,
1760 s->local.data + 3,
1761 &s->lport);
1762 sscanf(rem, "%08x%08x%08x%08x:%x",
1763 s->remote.data,
1764 s->remote.data + 1,
1765 s->remote.data + 2,
1766 s->remote.data + 3,
1767 &s->rport);
1768 s->local.bytelen = s->remote.bytelen = 16;
1769 return 0;
1770 }
1771 return -1;
1772}
1773
1774static int proc_inet_split_line(char *line, char **loc, char **rem, char **data)
aba5acdf 1775{
aba5acdf 1776 char *p;
ae665a52 1777
aba5acdf
SH		 1778 if ((p = strchr(line, ':')) == NULL)
1779 return -1;
ae665a52 1780
8250bc9f
VK		 1781 *loc = p+2;
1782 if ((p = strchr(*loc, ':')) == NULL)
aba5acdf 1783 return -1;
ae665a52 1784
8250bc9f
VK		 1785 p[5] = 0;
1786 *rem = p+6;
1787 if ((p = strchr(*rem, ':')) == NULL)
aba5acdf 1788 return -1;
8250bc9f 1789
aba5acdf 1790 p[5] = 0;
8250bc9f
VK		 1791 *data = p+6;
1792 return 0;
1793}
ae665a52 1794
8250bc9f
VK		 1795static char *sprint_bw(char *buf, double bw)
1796{
1797 if (bw > 1000000.)
acd1e437 1798 sprintf(buf, "%.1fM", bw / 1000000.);
8250bc9f 1799 else if (bw > 1000.)
acd1e437 1800 sprintf(buf, "%.1fK", bw / 1000.);
8250bc9f
VK		 1801 else
1802 sprintf(buf, "%g", bw);
aba5acdf 1803
8250bc9f
VK		 1804 return buf;
1805}
ae665a52 1806
f89d46ad
PS		 1807static void sctp_stats_print(struct sctp_info *s)
1808{
1809 if (s->sctpi_tag)
1810 printf(" tag:%x", s->sctpi_tag);
1811 if (s->sctpi_state)
1812 printf(" state:%s", sctp_sstate_name[s->sctpi_state]);
1813 if (s->sctpi_rwnd)
1814 printf(" rwnd:%d", s->sctpi_rwnd);
1815 if (s->sctpi_unackdata)
1816 printf(" unackdata:%d", s->sctpi_unackdata);
1817 if (s->sctpi_penddata)
1818 printf(" penddata:%d", s->sctpi_penddata);
1819 if (s->sctpi_instrms)
1820 printf(" instrms:%d", s->sctpi_instrms);
1821 if (s->sctpi_outstrms)
1822 printf(" outstrms:%d", s->sctpi_outstrms);
1823 if (s->sctpi_inqueue)
1824 printf(" inqueue:%d", s->sctpi_inqueue);
1825 if (s->sctpi_outqueue)
1826 printf(" outqueue:%d", s->sctpi_outqueue);
1827 if (s->sctpi_overall_error)
1828 printf(" overerr:%d", s->sctpi_overall_error);
1829 if (s->sctpi_max_burst)
1830 printf(" maxburst:%d", s->sctpi_max_burst);
1831 if (s->sctpi_maxseg)
1832 printf(" maxseg:%d", s->sctpi_maxseg);
1833 if (s->sctpi_peer_rwnd)
1834 printf(" prwnd:%d", s->sctpi_peer_rwnd);
1835 if (s->sctpi_peer_tag)
1836 printf(" ptag:%x", s->sctpi_peer_tag);
1837 if (s->sctpi_peer_capable)
1838 printf(" pcapable:%d", s->sctpi_peer_capable);
1839 if (s->sctpi_peer_sack)
1840 printf(" psack:%d", s->sctpi_peer_sack);
1841 if (s->sctpi_s_autoclose)
1842 printf(" autoclose:%d", s->sctpi_s_autoclose);
1843 if (s->sctpi_s_adaptation_ind)
1844 printf(" adapind:%d", s->sctpi_s_adaptation_ind);
1845 if (s->sctpi_s_pd_point)
1846 printf(" pdpoint:%d", s->sctpi_s_pd_point);
1847 if (s->sctpi_s_nodelay)
1848 printf(" nodealy:%d", s->sctpi_s_nodelay);
1849 if (s->sctpi_s_disable_fragments)
1850 printf(" nofrag:%d", s->sctpi_s_disable_fragments);
1851 if (s->sctpi_s_v4mapped)
1852 printf(" v4mapped:%d", s->sctpi_s_v4mapped);
1853 if (s->sctpi_s_frag_interleave)
1854 printf(" fraginl:%d", s->sctpi_s_frag_interleave);
1855}
1856
8250bc9f
VK		 1857static void tcp_stats_print(struct tcpstat *s)
1858{
1859 char b1[64];
1860
1861 if (s->has_ts_opt)
1862 printf(" ts");
1863 if (s->has_sack_opt)
1864 printf(" sack");
1865 if (s->has_ecn_opt)
1866 printf(" ecn");
1867 if (s->has_ecnseen_opt)
1868 printf(" ecnseen");
1869 if (s->has_fastopen_opt)
1870 printf(" fastopen");
d2055ea5 1871 if (s->cong_alg[0])
8250bc9f
VK		 1872 printf(" %s", s->cong_alg);
1873 if (s->has_wscale_opt)
1874 printf(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale);
1875 if (s->rto)
1876 printf(" rto:%g", s->rto);
1877 if (s->backoff)
1878 printf(" backoff:%u", s->backoff);
1879 if (s->rtt)
1880 printf(" rtt:%g/%g", s->rtt, s->rttvar);
1881 if (s->ato)
1882 printf(" ato:%g", s->ato);
1883
1884 if (s->qack)
1885 printf(" qack:%d", s->qack);
1886 if (s->qack & 1)
1887 printf(" bidir");
1888
1889 if (s->mss)
1890 printf(" mss:%d", s->mss);
3bf5445c 1891 if (s->cwnd)
d1f338b3 1892 printf(" cwnd:%u", s->cwnd);
8250bc9f
VK		 1893 if (s->ssthresh)
1894 printf(" ssthresh:%d", s->ssthresh);
1895
1a4dda71
ED		 1896 if (s->bytes_acked)
1897 printf(" bytes_acked:%llu", s->bytes_acked);
1898 if (s->bytes_received)
1899 printf(" bytes_received:%llu", s->bytes_received);
ecb435ea
CG		 1900 if (s->segs_out)
1901 printf(" segs_out:%u", s->segs_out);
1902 if (s->segs_in)
1903 printf(" segs_in:%u", s->segs_in);
414aeec9
MKL		 1904 if (s->data_segs_out)
1905 printf(" data_segs_out:%u", s->data_segs_out);
1906 if (s->data_segs_in)
1907 printf(" data_segs_in:%u", s->data_segs_in);
1a4dda71 1908
8250bc9f
VK		 1909 if (s->dctcp && s->dctcp->enabled) {
1910 struct dctcpstat *dctcp = s->dctcp;
1911
3bf5445c 1912 printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
8250bc9f
VK		 1913 dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn,
1914 dctcp->ab_tot);
1915 } else if (s->dctcp) {
3bf5445c 1916 printf(" dctcp:fallback_mode");
8250bc9f
VK		 1917 }
1918
2f0f9aef
NC		 1919 if (s->bbr_info) {
1920 __u64 bw;
1921
1922 bw = s->bbr_info->bbr_bw_hi;
1923 bw <<= 32;
1924 bw |= s->bbr_info->bbr_bw_lo;
1925
1926 printf(" bbr:(bw:%sbps,mrtt:%g",
1927 sprint_bw(b1, bw * 8.0),
1928 (double)s->bbr_info->bbr_min_rtt / 1000.0);
1929 if (s->bbr_info->bbr_pacing_gain)
1930 printf(",pacing_gain:%g",
1931 (double)s->bbr_info->bbr_pacing_gain / 256.0);
1932 if (s->bbr_info->bbr_cwnd_gain)
1933 printf(",cwnd_gain:%g",
1934 (double)s->bbr_info->bbr_cwnd_gain / 256.0);
1935 printf(")");
1936 }
1937
8250bc9f
VK		 1938 if (s->send_bps)
1939 printf(" send %sbps", sprint_bw(b1, s->send_bps));
1940 if (s->lastsnd)
1941 printf(" lastsnd:%u", s->lastsnd);
1942 if (s->lastrcv)
1943 printf(" lastrcv:%u", s->lastrcv);
1944 if (s->lastack)
1945 printf(" lastack:%u", s->lastack);
1946
1947 if (s->pacing_rate) {
1948 printf(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate));
1949 if (s->pacing_rate_max)
1950 printf("/%sbps", sprint_bw(b1,
1951 s->pacing_rate_max));
1952 }
1953
2f579872
NC		 1954 if (s->delivery_rate)
1955 printf(" delivery_rate %sbps", sprint_bw(b1, s->delivery_rate));
1956 if (s->app_limited)
1957 printf(" app_limited");
1958
b6c7fc61
YC		 1959 if (s->busy_time) {
1960 printf(" busy:%llums", s->busy_time / 1000);
1961 if (s->rwnd_limited)
1962 printf(" rwnd_limited:%llums(%.1f%%)",
1963 s->rwnd_limited / 1000,
1964 100.0 * s->rwnd_limited / s->busy_time);
1965 if (s->sndbuf_limited)
1966 printf(" sndbuf_limited:%llums(%.1f%%)",
1967 s->sndbuf_limited / 1000,
1968 100.0 * s->sndbuf_limited / s->busy_time);
1969 }
1970
8250bc9f
VK		 1971 if (s->unacked)
1972 printf(" unacked:%u", s->unacked);
1973 if (s->retrans || s->retrans_total)
1974 printf(" retrans:%u/%u", s->retrans, s->retrans_total);
1975 if (s->lost)
1976 printf(" lost:%u", s->lost);
055840f2 1977 if (s->sacked && s->ss.state != SS_LISTEN)
8250bc9f
VK		 1978 printf(" sacked:%u", s->sacked);
1979 if (s->fackets)
1980 printf(" fackets:%u", s->fackets);
1981 if (s->reordering != 3)
1982 printf(" reordering:%d", s->reordering);
1983 if (s->rcv_rtt)
1984 printf(" rcv_rtt:%g", s->rcv_rtt);
1985 if (s->rcv_space)
1986 printf(" rcv_space:%d", s->rcv_space);
9e99e495
SH		 1987 if (s->not_sent)
1988 printf(" notsent:%u", s->not_sent);
1989 if (s->min_rtt)
1990 printf(" minrtt:%g", s->min_rtt);
8250bc9f
VK		 1991}
1992
055840f2
VK		 1993static void tcp_timer_print(struct tcpstat *s)
1994{
86dfa1be
PS		 1995 static const char * const tmr_name[] = {
1996 "off",
1997 "on",
1998 "keepalive",
1999 "timewait",
2000 "persist",
2001 "unknown"
2002 };
2003
055840f2
VK		 2004 if (s->timer) {
2005 if (s->timer > 4)
2006 s->timer = 5;
2007 printf(" timer:(%s,%s,%d)",
2008 tmr_name[s->timer],
2009 print_ms_timer(s->timeout),
2010 s->retrans);
2011 }
2012}
2013
f89d46ad
PS		 2014static void sctp_timer_print(struct tcpstat *s)
2015{
2016 if (s->timer)
2017 printf(" timer:(T3_RTX,%s,%d)",
2018 print_ms_timer(s->timeout), s->retrans);
2019}
2020
8250bc9f
VK		 2021static int tcp_show_line(char *line, const struct filter *f, int family)
2022{
2023 int rto = 0, ato = 0;
2024 struct tcpstat s = {};
2025 char *loc, *rem, *data;
2026 char opt[256];
2027 int n;
2028 int hz = get_user_hz();
2029
2030 if (proc_inet_split_line(line, &loc, &rem, &data))
2031 return -1;
2032
2033 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2034
8250bc9f
VK		 2035 if (!(f->states & (1 << state)))
2036 return 0;
2037
055840f2 2038 proc_parse_inet_addr(loc, rem, family, &s.ss);
ae665a52 2039
055840f2 2040 if (f->f && run_ssfilter(f->f, &s.ss) == 0)
aba5acdf 2041 return 0;
ae665a52 2042
aba5acdf 2043 opt[0] = 0;
d1f338b3 2044 n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
055840f2
VK		 2045 &s.ss.state, &s.ss.wq, &s.ss.rq,
2046 &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes,
2047 &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd,
2048 &s.ssthresh, opt);
ae665a52 2049
aba5acdf
SH		 2050 if (n < 17)
2051 opt[0] = 0;
ae665a52 2052
aba5acdf 2053 if (n < 12) {
8250bc9f 2054 rto = 0;
aba5acdf
SH		 2055 s.cwnd = 2;
2056 s.ssthresh = -1;
8250bc9f 2057 ato = s.qack = 0;
aba5acdf 2058 }
ae665a52 2059
8250bc9f
VK		 2060 s.retrans = s.timer != 1 ? s.probes : s.retrans;
2061 s.timeout = (s.timeout * 1000 + hz - 1) / hz;
2062 s.ato = (double)ato / hz;
2063 s.qack /= 2;
2064 s.rto = (double)rto;
2065 s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh;
2066 s.rto = s.rto != 3 * hz ? s.rto / hz : 0;
be7e4d20 2067 s.ss.type = IPPROTO_TCP;
ae665a52 2068
be7e4d20 2069 inet_stats_print(&s.ss);
055840f2
VK		 2070
2071 if (show_options)
2072 tcp_timer_print(&s);
116ac927 2073
aba5acdf 2074 if (show_details) {
f1b39e1b 2075 sock_details_print(&s.ss);
aba5acdf
SH		 2076 if (opt[0])
2077 printf(" opt:\"%s\"", opt);
2078 }
aba5acdf 2079
8250bc9f
VK		 2080 if (show_tcpinfo)
2081 tcp_stats_print(&s);
2082
2083 printf("\n");
aba5acdf
SH		 2084 return 0;
2085}
2086
ab01dbbb
SH		 2087static int generic_record_read(FILE *fp,
2088 int (*worker)(char*, const struct filter *, int),
2089 const struct filter *f, int fam)
aba5acdf 2090{
ab01dbbb 2091 char line[256];
aba5acdf 2092
ab01dbbb
SH		 2093 /* skip header */
2094 if (fgets(line, sizeof(line), fp) == NULL)
aba5acdf 2095 goto outerr;
ab01dbbb
SH		 2096
2097 while (fgets(line, sizeof(line), fp) != NULL) {
2098 int n = strlen(line);
acd1e437 2099
ab01dbbb
SH		 2100 if (n == 0 || line[n-1] != '\n') {
2101 errno = -EINVAL;
2102 return -1;
aba5acdf 2103 }
ab01dbbb 2104 line[n-1] = 0;
aba5acdf 2105
ab01dbbb
SH		 2106 if (worker(line, f, fam) < 0)
2107 return 0;
2108 }
aba5acdf 2109outerr:
ab01dbbb
SH		 2110
2111 return ferror(fp) ? -1 : 0;
aba5acdf 2112}
ae665a52 2113
51ff9f24
HFS		 2114static void print_skmeminfo(struct rtattr *tb[], int attrtype)
2115{
2116 const __u32 *skmeminfo;
db08bdb8
VK		 2117
2118 if (!tb[attrtype]) {
2119 if (attrtype == INET_DIAG_SKMEMINFO) {
2120 if (!tb[INET_DIAG_MEMINFO])
2121 return;
2122
2123 const struct inet_diag_meminfo *minfo =
2124 RTA_DATA(tb[INET_DIAG_MEMINFO]);
2125
2126 printf(" mem:(r%u,w%u,f%u,t%u)",
2127 minfo->idiag_rmem,
2128 minfo->idiag_wmem,
2129 minfo->idiag_fmem,
2130 minfo->idiag_tmem);
2131 }
51ff9f24 2132 return;
db08bdb8
VK		 2133 }
2134
51ff9f24
HFS		 2135 skmeminfo = RTA_DATA(tb[attrtype]);
2136
2137 printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2138 skmeminfo[SK_MEMINFO_RMEM_ALLOC],
2139 skmeminfo[SK_MEMINFO_RCVBUF],
2140 skmeminfo[SK_MEMINFO_WMEM_ALLOC],
2141 skmeminfo[SK_MEMINFO_SNDBUF],
2142 skmeminfo[SK_MEMINFO_FWD_ALLOC],
2143 skmeminfo[SK_MEMINFO_WMEM_QUEUED],
2144 skmeminfo[SK_MEMINFO_OPTMEM]);
2145
2146 if (RTA_PAYLOAD(tb[attrtype]) >=
2147 (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32))
2148 printf(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]);
2149
6df9c7a0
ED		 2150 if (RTA_PAYLOAD(tb[attrtype]) >=
2151 (SK_MEMINFO_DROPS + 1) * sizeof(__u32))
2152 printf(",d%u", skmeminfo[SK_MEMINFO_DROPS]);
2153
51ff9f24
HFS		 2154 printf(")");
2155}
2156
8250bc9f
VK		 2157#define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2158
5b816047
PE		 2159static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2160 struct rtattr *tb[])
7d105b56 2161{
b4b0b7d5 2162 double rtt = 0;
8250bc9f 2163 struct tcpstat s = {};
7d105b56 2164
055840f2
VK		 2165 s.ss.state = r->idiag_state;
2166
db08bdb8 2167 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
7d105b56 2168
351efcde 2169 if (tb[INET_DIAG_INFO]) {
05e18118 2170 struct tcp_info *info;
351efcde 2171 int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
05e18118
SH		 2172
2173 /* workaround for older kernels with less fields */
2174 if (len < sizeof(*info)) {
2175 info = alloca(sizeof(*info));
351efcde 2176 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
656e8fdd 2177 memset((char *)info + len, 0, sizeof(*info) - len);
05e18118 2178 } else
351efcde 2179 info = RTA_DATA(tb[INET_DIAG_INFO]);
05e18118 2180
b4b0b7d5 2181 if (show_options) {
8250bc9f
VK		 2182 s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS);
2183 s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK);
2184 s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN);
2185 s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN);
2186 s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA);
b4b0b7d5 2187 }
52d5ac3f 2188
d2055ea5
ED		 2189 if (tb[INET_DIAG_CONG])
2190 strncpy(s.cong_alg,
2191 rta_getattr_str(tb[INET_DIAG_CONG]),
2192 sizeof(s.cong_alg) - 1);
8250bc9f
VK		 2193
2194 if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) {
2195 s.has_wscale_opt = true;
2196 s.snd_wscale = info->tcpi_snd_wscale;
2197 s.rcv_wscale = info->tcpi_rcv_wscale;
2198 }
ea8fc104 2199
7d105b56 2200 if (info->tcpi_rto && info->tcpi_rto != 3000000)
8250bc9f
VK		 2201 s.rto = (double)info->tcpi_rto / 1000;
2202
2203 s.backoff = info->tcpi_backoff;
2204 s.rtt = (double)info->tcpi_rtt / 1000;
2205 s.rttvar = (double)info->tcpi_rttvar / 1000;
11ba90fc 2206 s.ato = (double)info->tcpi_ato / 1000;
8250bc9f
VK		 2207 s.mss = info->tcpi_snd_mss;
2208 s.rcv_space = info->tcpi_rcv_space;
2209 s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000;
2210 s.lastsnd = info->tcpi_last_data_sent;
2211 s.lastrcv = info->tcpi_last_data_recv;
2212 s.lastack = info->tcpi_last_ack_recv;
2213 s.unacked = info->tcpi_unacked;
2214 s.retrans = info->tcpi_retrans;
2215 s.retrans_total = info->tcpi_total_retrans;
2216 s.lost = info->tcpi_lost;
2217 s.sacked = info->tcpi_sacked;
2218 s.reordering = info->tcpi_reordering;
2219 s.rcv_space = info->tcpi_rcv_space;
2220 s.cwnd = info->tcpi_snd_cwnd;
2221
7d105b56 2222 if (info->tcpi_snd_ssthresh < 0xFFFF)
8250bc9f 2223 s.ssthresh = info->tcpi_snd_ssthresh;
52d5ac3f 2224
b4b0b7d5 2225 rtt = (double) info->tcpi_rtt;
351efcde 2226 if (tb[INET_DIAG_VEGASINFO]) {
05e18118 2227 const struct tcpvegas_info *vinfo
351efcde 2228 = RTA_DATA(tb[INET_DIAG_VEGASINFO]);
7d105b56 2229
ae665a52 2230 if (vinfo->tcpv_enabled &&
8250bc9f 2231 vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff)
ea8fc104 2232 rtt = vinfo->tcpv_rtt;
b4b0b7d5
SH		 2233 }
2234
907e1aca 2235 if (tb[INET_DIAG_DCTCPINFO]) {
8250bc9f
VK		 2236 struct dctcpstat *dctcp = malloc(sizeof(struct
2237 dctcpstat));
2238
907e1aca
DB		 2239 const struct tcp_dctcp_info *dinfo
2240 = RTA_DATA(tb[INET_DIAG_DCTCPINFO]);
2241
8250bc9f
VK		 2242 dctcp->enabled = !!dinfo->dctcp_enabled;
2243 dctcp->ce_state = dinfo->dctcp_ce_state;
2244 dctcp->alpha = dinfo->dctcp_alpha;
2245 dctcp->ab_ecn = dinfo->dctcp_ab_ecn;
2246 dctcp->ab_tot = dinfo->dctcp_ab_tot;
2247 s.dctcp = dctcp;
907e1aca
DB		 2248 }
2249
2f0f9aef
NC		 2250 if (tb[INET_DIAG_BBRINFO]) {
2251 const void *bbr_info = RTA_DATA(tb[INET_DIAG_BBRINFO]);
2252 int len = min(RTA_PAYLOAD(tb[INET_DIAG_BBRINFO]),
2253 sizeof(*s.bbr_info));
2254
2255 s.bbr_info = calloc(1, sizeof(*s.bbr_info));
2256 if (s.bbr_info && bbr_info)
2257 memcpy(s.bbr_info, bbr_info, len);
2258 }
2259
b4b0b7d5 2260 if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
8250bc9f
VK		 2261 s.send_bps = (double) info->tcpi_snd_cwnd *
2262 (double)info->tcpi_snd_mss * 8000000. / rtt;
7d105b56 2263 }
b4b0b7d5 2264
eb6028b2 2265 if (info->tcpi_pacing_rate &&
8250bc9f
VK		 2266 info->tcpi_pacing_rate != ~0ULL) {
2267 s.pacing_rate = info->tcpi_pacing_rate * 8.;
eb6028b2
ED		 2268
2269 if (info->tcpi_max_pacing_rate &&
8250bc9f
VK		 2270 info->tcpi_max_pacing_rate != ~0ULL)
2271 s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.;
eb6028b2 2272 }
1a4dda71
ED		 2273 s.bytes_acked = info->tcpi_bytes_acked;
2274 s.bytes_received = info->tcpi_bytes_received;
ecb435ea
CG		 2275 s.segs_out = info->tcpi_segs_out;
2276 s.segs_in = info->tcpi_segs_in;
414aeec9
MKL		 2277 s.data_segs_out = info->tcpi_data_segs_out;
2278 s.data_segs_in = info->tcpi_data_segs_in;
9e99e495 2279 s.not_sent = info->tcpi_notsent_bytes;
d9ba887e
ED		 2280 if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U)
2281 s.min_rtt = (double) info->tcpi_min_rtt / 1000;
2f579872
NC		 2282 s.delivery_rate = info->tcpi_delivery_rate * 8.;
2283 s.app_limited = info->tcpi_delivery_rate_app_limited;
b6c7fc61
YC		 2284 s.busy_time = info->tcpi_busy_time;
2285 s.rwnd_limited = info->tcpi_rwnd_limited;
2286 s.sndbuf_limited = info->tcpi_sndbuf_limited;
8250bc9f 2287 tcp_stats_print(&s);
92de1c2c 2288 free(s.dctcp);
2f0f9aef 2289 free(s.bbr_info);
77a8ca81 2290 }
77a8ca81
PE		 2291}
2292
f89d46ad
PS		 2293static const char *format_host_sa(struct sockaddr_storage *sa)
2294{
2295 union {
2296 struct sockaddr_in sin;
2297 struct sockaddr_in6 sin6;
2298 } *saddr = (void *)sa;
2299
2300 switch (sa->ss_family) {
2301 case AF_INET:
2302 return format_host(AF_INET, 4, &saddr->sin.sin_addr);
2303 case AF_INET6:
2304 return format_host(AF_INET6, 16, &saddr->sin6.sin6_addr);
2305 default:
2306 return "";
2307 }
2308}
2309
2310static void sctp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2311 struct rtattr *tb[])
2312{
2313 struct sockaddr_storage *sa;
2314 int len;
2315
2316 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
2317
2318 if (tb[INET_DIAG_LOCALS]) {
2319 len = RTA_PAYLOAD(tb[INET_DIAG_LOCALS]);
2320 sa = RTA_DATA(tb[INET_DIAG_LOCALS]);
2321
2322 printf("locals:%s", format_host_sa(sa));
2323 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2324 printf(",%s", format_host_sa(sa));
2325
2326 }
2327 if (tb[INET_DIAG_PEERS]) {
2328 len = RTA_PAYLOAD(tb[INET_DIAG_PEERS]);
2329 sa = RTA_DATA(tb[INET_DIAG_PEERS]);
2330
2331 printf(" peers:%s", format_host_sa(sa));
2332 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2333 printf(",%s", format_host_sa(sa));
2334 }
2335 if (tb[INET_DIAG_INFO]) {
2336 struct sctp_info *info;
2337 len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
2338
2339 /* workaround for older kernels with less fields */
2340 if (len < sizeof(*info)) {
2341 info = alloca(sizeof(*info));
2342 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
2343 memset((char *)info + len, 0, sizeof(*info) - len);
2344 } else
2345 info = RTA_DATA(tb[INET_DIAG_INFO]);
2346
2347 sctp_stats_print(info);
2348 }
2349}
2350
82d73ea0 2351static void parse_diag_msg(struct nlmsghdr *nlh, struct sockstat *s)
aba5acdf 2352{
acd1e437 2353 struct rtattr *tb[INET_DIAG_MAX+1];
351efcde 2354 struct inet_diag_msg *r = NLMSG_DATA(nlh);
aba5acdf 2355
acd1e437 2356 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
5b816047
PE		 2357 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
2358
82d73ea0
DA		 2359 s->state = r->idiag_state;
2360 s->local.family = s->remote.family = r->idiag_family;
2361 s->lport = ntohs(r->id.idiag_sport);
2362 s->rport = ntohs(r->id.idiag_dport);
2363 s->wq = r->idiag_wqueue;
2364 s->rq = r->idiag_rqueue;
2365 s->ino = r->idiag_inode;
2366 s->uid = r->idiag_uid;
2367 s->iface = r->id.idiag_if;
2368 s->sk = cookie_sk_get(&r->id.idiag_cookie[0]);
2369
ec75249b
LC		 2370 s->mark = 0;
2371 if (tb[INET_DIAG_MARK])
2372 s->mark = *(__u32 *) RTA_DATA(tb[INET_DIAG_MARK]);
41fe6c34
CG		 2373 if (tb[INET_DIAG_PROTOCOL])
2374 s->raw_prot = *(__u8 *)RTA_DATA(tb[INET_DIAG_PROTOCOL]);
2375 else
2376 s->raw_prot = 0;
ec75249b 2377
82d73ea0
DA		 2378 if (s->local.family == AF_INET)
2379 s->local.bytelen = s->remote.bytelen = 4;
2380 else
2381 s->local.bytelen = s->remote.bytelen = 16;
8250bc9f 2382
82d73ea0
DA		 2383 memcpy(s->local.data, r->id.idiag_src, s->local.bytelen);
2384 memcpy(s->remote.data, r->id.idiag_dst, s->local.bytelen);
2385}
aba5acdf 2386
82d73ea0 2387static int inet_show_sock(struct nlmsghdr *nlh,
be7e4d20 2388 struct sockstat *s)
82d73ea0
DA		 2389{
2390 struct rtattr *tb[INET_DIAG_MAX+1];
2391 struct inet_diag_msg *r = NLMSG_DATA(nlh);
2392
2393 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
2394 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
aba5acdf 2395
6885e3bf 2396 if (tb[INET_DIAG_PROTOCOL])
be7e4d20 2397 s->type = *(__u8 *)RTA_DATA(tb[INET_DIAG_PROTOCOL]);
6885e3bf 2398
be7e4d20 2399 inet_stats_print(s);
116ac927 2400
055840f2
VK		 2401 if (show_options) {
2402 struct tcpstat t = {};
2403
2404 t.timer = r->idiag_timer;
2405 t.timeout = r->idiag_expires;
2406 t.retrans = r->idiag_retrans;
be7e4d20 2407 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2408 sctp_timer_print(&t);
2409 else
2410 tcp_timer_print(&t);
055840f2
VK		 2411 }
2412
aba5acdf 2413 if (show_details) {
82d73ea0
DA		 2414 sock_details_print(s);
2415 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY]) {
f32dc746 2416 unsigned char v6only;
acd1e437 2417
f32dc746
PS		 2418 v6only = *(__u8 *)RTA_DATA(tb[INET_DIAG_SKV6ONLY]);
2419 printf(" v6only:%u", v6only);
2420 }
5b816047
PE		 2421 if (tb[INET_DIAG_SHUTDOWN]) {
2422 unsigned char mask;
acd1e437 2423
5b816047
PE		 2424 mask = *(__u8 *)RTA_DATA(tb[INET_DIAG_SHUTDOWN]);
2425 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
2426 }
aba5acdf 2427 }
8250bc9f 2428
be7e4d20 2429 if (show_mem || (show_tcpinfo && s->type != IPPROTO_UDP)) {
7d105b56 2430 printf("\n\t");
be7e4d20 2431 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2432 sctp_show_info(nlh, r, tb);
2433 else
2434 tcp_show_info(nlh, r, tb);
aba5acdf 2435 }
f89d46ad 2436 sctp_ino = s->ino;
7d105b56 2437
aba5acdf 2438 printf("\n");
aba5acdf 2439 return 0;
aba5acdf
SH		 2440}
2441
746a695f 2442static int tcpdiag_send(int fd, int protocol, struct filter *f)
aba5acdf 2443{
d17b136f 2444 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
aba5acdf
SH		 2445 struct {
2446 struct nlmsghdr nlh;
351efcde 2447 struct inet_diag_req r;
d17b136f
PS		 2448 } req = {
2449 .nlh.nlmsg_len = sizeof(req),
2450 .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
2451 .nlh.nlmsg_seq = MAGIC_SEQ,
2452 .r.idiag_family = AF_INET,
2453 .r.idiag_states = f->states,
2454 };
aba5acdf
SH		 2455 char *bc = NULL;
2456 int bclen;
2457 struct msghdr msg;
2458 struct rtattr rta;
aba5acdf 2459 struct iovec iov[3];
376fb868 2460 int iovlen = 1;
aba5acdf 2461
346f8ca8
PE		 2462 if (protocol == IPPROTO_UDP)
2463 return -1;
2464
3fe5b534
PE		 2465 if (protocol == IPPROTO_TCP)
2466 req.nlh.nlmsg_type = TCPDIAG_GETSOCK;
2467 else
2468 req.nlh.nlmsg_type = DCCPDIAG_GETSOCK;
910b0397 2469 if (show_mem) {
ae665a52 2470 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
910b0397
SW		 2471 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2472 }
b4b0b7d5 2473
7d105b56 2474 if (show_tcpinfo) {
351efcde
SH		 2475 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2476 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2477 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
7d105b56 2478 }
aba5acdf 2479
ae665a52
SH		 2480 iov[0] = (struct iovec){
2481 .iov_base = &req,
2482 .iov_len = sizeof(req)
ea8fc104 2483 };
aba5acdf
SH		 2484 if (f->f) {
2485 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2486 if (bclen) {
2487 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2488 rta.rta_len = RTA_LENGTH(bclen);
2489 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2490 iov[2] = (struct iovec){ bc, bclen };
2491 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2492 iovlen = 3;
2493 }
aba5acdf
SH		 2494 }
2495
2496 msg = (struct msghdr) {
acd1e437 2497 .msg_name = (void *)&nladdr,
ea8fc104 2498 .msg_namelen = sizeof(nladdr),
ae665a52 2499 .msg_iov = iov,
376fb868 2500 .msg_iovlen = iovlen,
aba5acdf
SH		 2501 };
2502
930a75f9
ED		 2503 if (sendmsg(fd, &msg, 0) < 0) {
2504 close(fd);
aba5acdf 2505 return -1;
930a75f9 2506 }
aba5acdf 2507
746a695f
PE		 2508 return 0;
2509}
2510
886d19d6
PE		 2511static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
2512{
d17b136f 2513 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
5fb421d4 2514 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
886d19d6
PE		 2515 char *bc = NULL;
2516 int bclen;
2517 struct msghdr msg;
2518 struct rtattr rta;
2519 struct iovec iov[3];
376fb868 2520 int iovlen = 1;
886d19d6
PE		 2521
2522 if (family == PF_UNSPEC)
2523 return tcpdiag_send(fd, protocol, f);
2524
886d19d6
PE		 2525 memset(&req.r, 0, sizeof(req.r));
2526 req.r.sdiag_family = family;
2527 req.r.sdiag_protocol = protocol;
2528 req.r.idiag_states = f->states;
2529 if (show_mem) {
2530 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
2531 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2532 }
2533
2534 if (show_tcpinfo) {
2535 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2536 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2537 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
2538 }
2539
2540 iov[0] = (struct iovec){
2541 .iov_base = &req,
2542 .iov_len = sizeof(req)
2543 };
2544 if (f->f) {
2545 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2546 if (bclen) {
2547 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2548 rta.rta_len = RTA_LENGTH(bclen);
2549 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2550 iov[2] = (struct iovec){ bc, bclen };
2551 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2552 iovlen = 3;
2553 }
886d19d6
PE		 2554 }
2555
2556 msg = (struct msghdr) {
acd1e437 2557 .msg_name = (void *)&nladdr,
886d19d6
PE		 2558 .msg_namelen = sizeof(nladdr),
2559 .msg_iov = iov,
376fb868 2560 .msg_iovlen = iovlen,
886d19d6
PE		 2561 };
2562
2563 if (sendmsg(fd, &msg, 0) < 0) {
2564 close(fd);
2565 return -1;
2566 }
2567
2568 return 0;
2569}
2570
486ccd99
VK		 2571struct inet_diag_arg {
2572 struct filter *f;
2573 int protocol;
fb2594c1 2574 struct rtnl_handle *rth;
486ccd99 2575};
aba5acdf 2576
41fe6c34 2577static int kill_inet_sock(struct nlmsghdr *h, void *arg, struct sockstat *s)
fb2594c1
LC		 2578{
2579 struct inet_diag_msg *d = NLMSG_DATA(h);
2580 struct inet_diag_arg *diag_arg = arg;
2581 struct rtnl_handle *rth = diag_arg->rth;
acd1e437 2582
fb2594c1
LC		 2583 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
2584
2585 req.nlh.nlmsg_type = SOCK_DESTROY;
2586 req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
2587 req.nlh.nlmsg_seq = ++rth->seq;
2588 req.r.sdiag_family = d->idiag_family;
2589 req.r.sdiag_protocol = diag_arg->protocol;
2590 req.r.id = d->id;
2591
41fe6c34
CG		 2592 if (diag_arg->protocol == IPPROTO_RAW) {
2593 struct inet_diag_req_raw *raw = (void *)&req.r;
2594
2595 BUILD_BUG_ON(sizeof(req.r) != sizeof(*raw));
2596 raw->sdiag_raw_protocol = s->raw_prot;
2597 }
2598
fb2594c1
LC		 2599 return rtnl_talk(rth, &req.nlh, NULL, 0);
2600}
2601
486ccd99
VK		 2602static int show_one_inet_sock(const struct sockaddr_nl *addr,
2603 struct nlmsghdr *h, void *arg)
2604{
2605 int err;
2606 struct inet_diag_arg *diag_arg = arg;
2607 struct inet_diag_msg *r = NLMSG_DATA(h);
82d73ea0 2608 struct sockstat s = {};
aba5acdf 2609
486ccd99
VK		 2610 if (!(diag_arg->f->families & (1 << r->idiag_family)))
2611 return 0;
82d73ea0
DA		 2612
2613 parse_diag_msg(h, &s);
be7e4d20 2614 s.type = diag_arg->protocol;
82d73ea0
DA		 2615
2616 if (diag_arg->f->f && run_ssfilter(diag_arg->f->f, &s) == 0)
2617 return 0;
2618
41fe6c34 2619 if (diag_arg->f->kill && kill_inet_sock(h, arg, &s) != 0) {
fb2594c1
LC		 2620 if (errno == EOPNOTSUPP || errno == ENOENT) {
2621 /* Socket can't be closed, or is already closed. */
2622 return 0;
2623 } else {
2624 perror("SOCK_DESTROY answers");
2625 return -1;
2626 }
2627 }
82d73ea0 2628
be7e4d20 2629 err = inet_show_sock(h, &s);
82d73ea0 2630 if (err < 0)
486ccd99 2631 return err;
aba5acdf 2632
486ccd99
VK		 2633 return 0;
2634}
886d19d6 2635
486ccd99
VK		 2636static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol)
2637{
2638 int err = 0;
fb2594c1 2639 struct rtnl_handle rth, rth2;
486ccd99
VK		 2640 int family = PF_INET;
2641 struct inet_diag_arg arg = { .f = f, .protocol = protocol };
886d19d6 2642
486ccd99
VK		 2643 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
2644 return -1;
fb2594c1
LC		 2645
2646 if (f->kill) {
2647 if (rtnl_open_byproto(&rth2, 0, NETLINK_SOCK_DIAG)) {
2648 rtnl_close(&rth);
2649 return -1;
2650 }
2651 arg.rth = &rth2;
2652 }
2653
486ccd99
VK		 2654 rth.dump = MAGIC_SEQ;
2655 rth.dump_fp = dump_fp;
518af1e0
ED		 2656 if (preferred_family == PF_INET6)
2657 family = PF_INET6;
886d19d6 2658
486ccd99
VK		 2659again:
2660 if ((err = sockdiag_send(family, rth.fd, protocol, f)))
2661 goto Exit;
aba5acdf 2662
486ccd99
VK		 2663 if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) {
2664 if (family != PF_UNSPEC) {
2665 family = PF_UNSPEC;
2666 goto again;
aba5acdf 2667 }
486ccd99 2668 goto Exit;
aba5acdf 2669 }
518af1e0 2670 if (family == PF_INET && preferred_family != PF_INET) {
886d19d6
PE		 2671 family = PF_INET6;
2672 goto again;
2673 }
2674
486ccd99
VK		 2675Exit:
2676 rtnl_close(&rth);
fb2594c1
LC		 2677 if (arg.rth)
2678 rtnl_close(arg.rth);
486ccd99 2679 return err;
aba5acdf
SH		 2680}
2681
ab01dbbb 2682static int tcp_show_netlink_file(struct filter *f)
aba5acdf
SH		 2683{
2684 FILE *fp;
e557212e 2685 char buf[16384];
aba5acdf
SH		 2686
2687 if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) {
2688 perror("fopen($TCPDIAG_FILE)");
2689 return -1;
2690 }
2691
2692 while (1) {
2693 int status, err;
acd1e437 2694 struct nlmsghdr *h = (struct nlmsghdr *)buf;
82d73ea0 2695 struct sockstat s = {};
aba5acdf
SH		 2696
2697 status = fread(buf, 1, sizeof(*h), fp);
2698 if (status < 0) {
2699 perror("Reading header from $TCPDIAG_FILE");
2700 return -1;
2701 }
2702 if (status != sizeof(*h)) {
2703 perror("Unexpected EOF reading $TCPDIAG_FILE");
2704 return -1;
2705 }
2706
2707 status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp);
2708
2709 if (status < 0) {
2710 perror("Reading $TCPDIAG_FILE");
2711 return -1;
2712 }
2713 if (status + sizeof(*h) < h->nlmsg_len) {
2714 perror("Unexpected EOF reading $TCPDIAG_FILE");
2715 return -1;
2716 }
2717
2718 /* The only legal exit point */
2719 if (h->nlmsg_type == NLMSG_DONE)
2720 return 0;
2721
2722 if (h->nlmsg_type == NLMSG_ERROR) {
acd1e437
SH		 2723 struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h);
2724
aba5acdf
SH		 2725 if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
2726 fprintf(stderr, "ERROR truncated\n");
2727 } else {
2728 errno = -err->error;
2729 perror("TCPDIAG answered");
2730 }
2731 return -1;
2732 }
2733
82d73ea0 2734 parse_diag_msg(h, &s);
be7e4d20 2735 s.type = IPPROTO_TCP;
82d73ea0
DA		 2736
2737 if (f && f->f && run_ssfilter(f->f, &s) == 0)
2738 continue;
2739
be7e4d20 2740 err = inet_show_sock(h, &s);
aba5acdf
SH		 2741 if (err < 0)
2742 return err;
2743 }
2744}
2745
ab01dbbb 2746static int tcp_show(struct filter *f, int socktype)
aba5acdf 2747{
ab01dbbb 2748 FILE *fp = NULL;
aba5acdf
SH		 2749 char *buf = NULL;
2750 int bufsize = 64*1024;
2751
1527a17e
VK		 2752 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2753 return 0;
2754
aba5acdf
SH		 2755 dg_proto = TCP_PROTO;
2756
2757 if (getenv("TCPDIAG_FILE"))
2758 return tcp_show_netlink_file(f);
2759
2760 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
3fe5b534 2761 && inet_show_netlink(f, NULL, socktype) == 0)
aba5acdf
SH		 2762 return 0;
2763
2764 /* Sigh... We have to parse /proc/net/tcp... */
2765
ab01dbbb 2766
aba5acdf
SH		 2767 /* Estimate amount of sockets and try to allocate
2768 * huge buffer to read all the table at one read.
2769 * Limit it by 16MB though. The assumption is: as soon as
2770 * kernel was able to hold information about N connections,
2771 * it is able to give us some memory for snapshot.
2772 */
2773 if (1) {
a221d621
BL		 2774 get_slabstat(&slabstat);
2775
aba5acdf 2776 int guess = slabstat.socks+slabstat.tcp_syns;
acd1e437 2777
aba5acdf
SH		 2778 if (f->states&(1<<SS_TIME_WAIT))
2779 guess += slabstat.tcp_tws;
2780 if (guess > (16*1024*1024)/128)
2781 guess = (16*1024*1024)/128;
2782 guess *= 128;
2783 if (guess > bufsize)
2784 bufsize = guess;
2785 }
2786 while (bufsize >= 64*1024) {
2787 if ((buf = malloc(bufsize)) != NULL)
2788 break;
2789 bufsize /= 2;
2790 }
2791 if (buf == NULL) {
2792 errno = ENOMEM;
2793 return -1;
2794 }
2795
2796 if (f->families & (1<<AF_INET)) {
69cae645 2797 if ((fp = net_tcp_open()) == NULL)
aba5acdf 2798 goto outerr;
ab01dbbb
SH		 2799
2800 setbuffer(fp, buf, bufsize);
2801 if (generic_record_read(fp, tcp_show_line, f, AF_INET))
aba5acdf 2802 goto outerr;
ab01dbbb 2803 fclose(fp);
aba5acdf
SH		 2804 }
2805
2806 if ((f->families & (1<<AF_INET6)) &&
69cae645 2807 (fp = net_tcp6_open()) != NULL) {
ab01dbbb
SH		 2808 setbuffer(fp, buf, bufsize);
2809 if (generic_record_read(fp, tcp_show_line, f, AF_INET6))
aba5acdf 2810 goto outerr;
ab01dbbb 2811 fclose(fp);
aba5acdf
SH		 2812 }
2813
2814 free(buf);
2815 return 0;
2816
2817outerr:
2818 do {
2819 int saved_errno = errno;
acd1e437 2820
92de1c2c 2821 free(buf);
ab01dbbb
SH		 2822 if (fp)
2823 fclose(fp);
aba5acdf
SH		 2824 errno = saved_errno;
2825 return -1;
2826 } while (0);
2827}
2828
f89d46ad
PS		 2829static int sctp_show(struct filter *f)
2830{
2831 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2832 return 0;
2833
2834 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
2835 && inet_show_netlink(f, NULL, IPPROTO_SCTP) == 0)
2836 return 0;
2837
2838 return 0;
2839}
aba5acdf 2840
d1f28cf1 2841static int dgram_show_line(char *line, const struct filter *f, int family)
aba5acdf 2842{
055840f2 2843 struct sockstat s = {};
aba5acdf
SH		 2844 char *loc, *rem, *data;
2845 char opt[256];
2846 int n;
aba5acdf 2847
8250bc9f 2848 if (proc_inet_split_line(line, &loc, &rem, &data))
aba5acdf 2849 return -1;
aba5acdf 2850
8250bc9f 2851 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2852
8250bc9f
VK		 2853 if (!(f->states & (1 << state)))
2854 return 0;
aba5acdf 2855
8250bc9f 2856 proc_parse_inet_addr(loc, rem, family, &s);
aba5acdf
SH		 2857
2858 if (f->f && run_ssfilter(f->f, &s) == 0)
2859 return 0;
2860
2861 opt[0] = 0;
e7113c61 2862 n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
aba5acdf
SH		 2863 &s.state, &s.wq, &s.rq,
2864 &s.uid, &s.ino,
2865 &s.refcnt, &s.sk, opt);
2866
2867 if (n < 9)
2868 opt[0] = 0;
2869
be7e4d20
PS		 2870 s.type = dg_proto == UDP_PROTO ? IPPROTO_UDP : 0;
2871 inet_stats_print(&s);
aba5acdf 2872
f1b39e1b
VK		 2873 if (show_details && opt[0])
2874 printf(" opt:\"%s\"", opt);
aba5acdf 2875
8250bc9f 2876 printf("\n");
aba5acdf
SH		 2877 return 0;
2878}
2879
d1f28cf1 2880static int udp_show(struct filter *f)
aba5acdf 2881{
ab01dbbb 2882 FILE *fp = NULL;
aba5acdf 2883
1527a17e
VK		 2884 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2885 return 0;
2886
ace5cb31
VK		 2887 dg_proto = UDP_PROTO;
2888
346f8ca8
PE		 2889 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
2890 && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0)
2891 return 0;
2892
aba5acdf 2893 if (f->families&(1<<AF_INET)) {
69cae645 2894 if ((fp = net_udp_open()) == NULL)
aba5acdf 2895 goto outerr;
ab01dbbb 2896 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2897 goto outerr;
ab01dbbb 2898 fclose(fp);
aba5acdf
SH		 2899 }
2900
2901 if ((f->families&(1<<AF_INET6)) &&
69cae645 2902 (fp = net_udp6_open()) != NULL) {
ab01dbbb 2903 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2904 goto outerr;
ab01dbbb 2905 fclose(fp);
aba5acdf
SH		 2906 }
2907 return 0;
2908
2909outerr:
2910 do {
2911 int saved_errno = errno;
acd1e437 2912
ab01dbbb
SH		 2913 if (fp)
2914 fclose(fp);
aba5acdf
SH		 2915 errno = saved_errno;
2916 return -1;
2917 } while (0);
2918}
2919
d1f28cf1 2920static int raw_show(struct filter *f)
aba5acdf 2921{
ab01dbbb 2922 FILE *fp = NULL;
aba5acdf 2923
1527a17e
VK		 2924 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2925 return 0;
2926
aba5acdf
SH		 2927 dg_proto = RAW_PROTO;
2928
41fe6c34
CG		 2929 if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") &&
2930 inet_show_netlink(f, NULL, IPPROTO_RAW) == 0)
2931 return 0;
2932
aba5acdf 2933 if (f->families&(1<<AF_INET)) {
69cae645 2934 if ((fp = net_raw_open()) == NULL)
aba5acdf 2935 goto outerr;
ab01dbbb 2936 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2937 goto outerr;
ab01dbbb 2938 fclose(fp);
aba5acdf
SH		 2939 }
2940
2941 if ((f->families&(1<<AF_INET6)) &&
69cae645 2942 (fp = net_raw6_open()) != NULL) {
ab01dbbb 2943 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2944 goto outerr;
ab01dbbb 2945 fclose(fp);
aba5acdf
SH		 2946 }
2947 return 0;
2948
2949outerr:
2950 do {
2951 int saved_errno = errno;
acd1e437 2952
ab01dbbb
SH		 2953 if (fp)
2954 fclose(fp);
aba5acdf
SH		 2955 errno = saved_errno;
2956 return -1;
2957 } while (0);
2958}
2959
aba5acdf
SH		 2960int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT,
2961 SS_ESTABLISHED, SS_CLOSING };
2962
ec4d0d8a 2963#define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
aba5acdf 2964
2d0e538f 2965static void unix_list_drop_first(struct sockstat **list)
aba5acdf 2966{
2d0e538f 2967 struct sockstat *s = *list;
ec4d0d8a 2968
2d0e538f
PS		 2969 (*list) = (*list)->next;
2970 free(s->name);
2971 free(s);
aba5acdf
SH		 2972}
2973
ec4d0d8a 2974static bool unix_type_skip(struct sockstat *s, struct filter *f)
bf4ceee6
VK		 2975{
2976 if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
2977 return true;
2978 if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
2979 return true;
2980 if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
2981 return true;
2982 return false;
2983}
2984
2d0e538f 2985static void unix_stats_print(struct sockstat *s, struct filter *f)
aba5acdf 2986{
b217df10 2987 char port_name[30] = {};
aba5acdf 2988
2d0e538f 2989 sock_state_print(s);
2d791bc8 2990
2d0e538f
PS		 2991 sock_addr_print(s->name ?: "*", " ",
2992 int_to_str(s->lport, port_name), NULL);
2993 sock_addr_print(s->peer_name ?: "*", " ",
2994 int_to_str(s->rport, port_name), NULL);
116ac927 2995
2d0e538f 2996 proc_ctx_print(s);
aba5acdf
SH		 2997}
2998
8a4025f6 2999static int unix_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh,
3000 void *arg)
dfbaa90d 3001{
8a4025f6 3002 struct filter *f = (struct filter *)arg;
dfbaa90d
PE		 3003 struct unix_diag_msg *r = NLMSG_DATA(nlh);
3004 struct rtattr *tb[UNIX_DIAG_MAX+1];
99bb68ff
VK		 3005 char name[128];
3006 struct sockstat stat = { .name = "*", .peer_name = "*" };
dfbaa90d 3007
acd1e437 3008 parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr *)(r+1),
dfbaa90d
PE		 3009 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3010
bf4ceee6
VK		 3011 stat.type = r->udiag_type;
3012 stat.state = r->udiag_state;
ec4d0d8a
VK		 3013 stat.ino = stat.lport = r->udiag_ino;
3014 stat.local.family = stat.remote.family = AF_UNIX;
0d2e01c5 3015
bf4ceee6
VK		 3016 if (unix_type_skip(&stat, f))
3017 return 0;
dfbaa90d 3018
defd61ca
HFS		 3019 if (tb[UNIX_DIAG_RQLEN]) {
3020 struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]);
acd1e437 3021
bf4ceee6
VK		 3022 stat.rq = rql->udiag_rqueue;
3023 stat.wq = rql->udiag_wqueue;
defd61ca 3024 }
dfbaa90d
PE		 3025 if (tb[UNIX_DIAG_NAME]) {
3026 int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
3027
3028 memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
3029 name[len] = '\0';
3030 if (name[0] == '\0')
878dadc7
IB		 3031 for (int i = 0; i < len; i++)
3032 if (name[i] == '\0')
3033 name[i] = '@';
99bb68ff
VK		 3034 stat.name = &name[0];
3035 memcpy(stat.local.data, &stat.name, sizeof(stat.name));
bf4ceee6 3036 }
dfbaa90d 3037 if (tb[UNIX_DIAG_PEER])
ec4d0d8a 3038 stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]);
dfbaa90d 3039
29999b0f
VK		 3040 if (f->f && run_ssfilter(f->f, &stat) == 0)
3041 return 0;
3042
bf4ceee6 3043 unix_stats_print(&stat, f);
dfbaa90d 3044
45199997 3045 if (show_mem)
51ff9f24 3046 print_skmeminfo(tb, UNIX_DIAG_MEMINFO);
5b816047
PE		 3047 if (show_details) {
3048 if (tb[UNIX_DIAG_SHUTDOWN]) {
3049 unsigned char mask;
acd1e437 3050
5b816047
PE		 3051 mask = *(__u8 *)RTA_DATA(tb[UNIX_DIAG_SHUTDOWN]);
3052 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
3053 }
3054 }
2d0e538f 3055 printf("\n");
ec4d0d8a 3056
dfbaa90d
PE		 3057 return 0;
3058}
3059
8a4025f6 3060static int handle_netlink_request(struct filter *f, struct nlmsghdr *req,
3061 size_t size, rtnl_filter_t show_one_sock)
dfbaa90d 3062{
8a4025f6 3063 int ret = -1;
3064 struct rtnl_handle rth;
dfbaa90d 3065
8a4025f6 3066 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
dfbaa90d
PE		 3067 return -1;
3068
8a4025f6 3069 rth.dump = MAGIC_SEQ;
dfbaa90d 3070
8a4025f6 3071 if (rtnl_send(&rth, req, size) < 0)
3072 goto Exit;
dfbaa90d 3073
8a4025f6 3074 if (rtnl_dump_filter(&rth, show_one_sock, f))
3075 goto Exit;
dfbaa90d 3076
8a4025f6 3077 ret = 0;
3078Exit:
3079 rtnl_close(&rth);
3080 return ret;
dfbaa90d
PE		 3081}
3082
8a4025f6 3083static int unix_show_netlink(struct filter *f)
d8402b96 3084{
5fb421d4 3085 DIAG_REQUEST(req, struct unix_diag_req r);
d8402b96
AV		 3086
3087 req.r.sdiag_family = AF_UNIX;
3088 req.r.udiag_states = f->states;
3089 req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
3090 if (show_mem)
3091 req.r.udiag_show |= UDIAG_SHOW_MEMINFO;
3092
8a4025f6 3093 return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock);
d8402b96
AV		 3094}
3095
d1f28cf1 3096static int unix_show(struct filter *f)
aba5acdf
SH		 3097{
3098 FILE *fp;
3099 char buf[256];
3100 char name[128];
3101 int newformat = 0;
3102 int cnt;
ec4d0d8a 3103 struct sockstat *list = NULL;
aba5acdf 3104
9db7bf15
VK		 3105 if (!filter_af_get(f, AF_UNIX))
3106 return 0;
3107
f25062e9
PS		 3108 if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT")
3109 && unix_show_netlink(f) == 0)
dfbaa90d
PE		 3110 return 0;
3111
ab01dbbb 3112 if ((fp = net_unix_open()) == NULL)
aba5acdf 3113 return -1;
61170fd8 3114 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3115 fclose(fp);
3116 return -1;
3117 }
aba5acdf 3118
ae665a52 3119 if (memcmp(buf, "Peer", 4) == 0)
aba5acdf
SH		 3120 newformat = 1;
3121 cnt = 0;
3122
61170fd8 3123 while (fgets(buf, sizeof(buf), fp)) {
ec4d0d8a 3124 struct sockstat *u, **insp;
aba5acdf
SH		 3125 int flags;
3126
0ee9052f 3127 if (!(u = calloc(1, sizeof(*u))))
aba5acdf 3128 break;
99bb68ff
VK		 3129 u->name = NULL;
3130 u->peer_name = NULL;
aba5acdf
SH		 3131
3132 if (sscanf(buf, "%x: %x %x %x %x %x %d %s",
ec4d0d8a 3133 &u->rport, &u->rq, &u->wq, &flags, &u->type,
aba5acdf
SH		 3134 &u->state, &u->ino, name) < 8)
3135 name[0] = 0;
3136
ec4d0d8a
VK		 3137 u->lport = u->ino;
3138 u->local.family = u->remote.family = AF_UNIX;
3139
3140 if (flags & (1 << 16)) {
aba5acdf
SH		 3141 u->state = SS_LISTEN;
3142 } else {
3143 u->state = unix_state_map[u->state-1];
ec4d0d8a 3144 if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport)
aba5acdf
SH		 3145 u->state = SS_ESTABLISHED;
3146 }
2d0e538f
PS		 3147 if (unix_type_skip(u, f) ||
3148 !(f->states & (1 << u->state))) {
3149 free(u);
3150 continue;
3151 }
aba5acdf
SH		 3152
3153 if (!newformat) {
ec4d0d8a 3154 u->rport = 0;
aba5acdf
SH		 3155 u->rq = 0;
3156 u->wq = 0;
3157 }
3158
2d0e538f
PS		 3159 if (name[0]) {
3160 u->name = strdup(name);
3161 if (!u->name)
3162 break;
3163 }
3164
3165 if (u->rport) {
3166 struct sockstat *p;
3167
3168 for (p = list; p; p = p->next) {
3169 if (u->rport == p->lport)
3170 break;
3171 }
3172 if (!p)
3173 u->peer_name = "?";
3174 else
3175 u->peer_name = p->name ? : "*";
3176 }
3177
3178 if (f->f) {
3179 struct sockstat st = {
3180 .local.family = AF_UNIX,
3181 .remote.family = AF_UNIX,
3182 };
3183
3184 memcpy(st.local.data, &u->name, sizeof(u->name));
3185 if (strcmp(u->peer_name, "*"))
3186 memcpy(st.remote.data, &u->peer_name,
3187 sizeof(u->peer_name));
3188 if (run_ssfilter(f->f, &st) == 0) {
3189 free(u->name);
3190 free(u);
3191 continue;
3192 }
3193 }
3194
aba5acdf
SH		 3195 insp = &list;
3196 while (*insp) {
3197 if (u->type < (*insp)->type ||
3198 (u->type == (*insp)->type &&
3199 u->ino < (*insp)->ino))
3200 break;
3201 insp = &(*insp)->next;
3202 }
3203 u->next = *insp;
3204 *insp = u;
3205
aba5acdf 3206 if (++cnt > MAX_UNIX_REMEMBER) {
2d0e538f
PS		 3207 while (list) {
3208 unix_stats_print(list, f);
3209 printf("\n");
3210
3211 unix_list_drop_first(&list);
3212 }
aba5acdf
SH		 3213 cnt = 0;
3214 }
3215 }
a3fd8e58 3216 fclose(fp);
2d0e538f 3217 while (list) {
bf4ceee6 3218 unix_stats_print(list, f);
2d0e538f
PS		 3219 printf("\n");
3220
3221 unix_list_drop_first(&list);
aba5acdf
SH		 3222 }
3223
3224 return 0;
3225}
3226
89f634f9 3227static int packet_stats_print(struct sockstat *s, const struct filter *f)
4a0053b6 3228{
b217df10
VK		 3229 const char *addr, *port;
3230 char ll_name[16];
372c30d2 3231
be7e4d20
PS		 3232 s->local.family = s->remote.family = AF_PACKET;
3233
4a0053b6 3234 if (f->f) {
89f634f9 3235 s->local.data[0] = s->prot;
89f634f9 3236 if (run_ssfilter(f->f, s) == 0)
4a0053b6
VK		 3237 return 1;
3238 }
372c30d2 3239
be7e4d20 3240 sock_state_print(s);
372c30d2 3241
b217df10
VK		 3242 if (s->prot == 3)
3243 addr = "*";
3244 else
3245 addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name));
3246
3247 if (s->iface == 0)
3248 port = "*";
3249 else
3250 port = xll_index_to_name(s->iface);
372c30d2 3251
b217df10
VK		 3252 sock_addr_print(addr, ":", port, NULL);
3253 sock_addr_print("", "*", "", NULL);
116ac927 3254
5f27ac1d 3255 proc_ctx_print(s);
116ac927 3256
f1b39e1b
VK		 3257 if (show_details)
3258 sock_details_print(s);
3259
4a0053b6
VK		 3260 return 0;
3261}
3262
2631b856
VK		 3263static void packet_show_ring(struct packet_diag_ring *ring)
3264{
3265 printf("blk_size:%d", ring->pdr_block_size);
3266 printf(",blk_nr:%d", ring->pdr_block_nr);
3267 printf(",frm_size:%d", ring->pdr_frame_size);
3268 printf(",frm_nr:%d", ring->pdr_frame_nr);
3269 printf(",tmo:%d", ring->pdr_retire_tmo);
3270 printf(",features:0x%x", ring->pdr_features);
3271}
3272
4a0053b6
VK		 3273static int packet_show_sock(const struct sockaddr_nl *addr,
3274 struct nlmsghdr *nlh, void *arg)
3275{
3276 const struct filter *f = arg;
3277 struct packet_diag_msg *r = NLMSG_DATA(nlh);
2631b856
VK		 3278 struct packet_diag_info *pinfo = NULL;
3279 struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL;
4a0053b6 3280 struct rtattr *tb[PACKET_DIAG_MAX+1];
89f634f9 3281 struct sockstat stat = {};
2631b856
VK		 3282 uint32_t fanout = 0;
3283 bool has_fanout = false;
4a0053b6 3284
acd1e437 3285 parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr *)(r+1),
4a0053b6
VK		 3286 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3287
3288 /* use /proc/net/packet if all info are not available */
3289 if (!tb[PACKET_DIAG_MEMINFO])
3290 return -1;
3291
2d791bc8
VK		 3292 stat.type = r->pdiag_type;
3293 stat.prot = r->pdiag_num;
3294 stat.ino = r->pdiag_ino;
3295 stat.state = SS_CLOSE;
f1b39e1b 3296 stat.sk = cookie_sk_get(&r->pdiag_cookie[0]);
4a0053b6
VK		 3297
3298 if (tb[PACKET_DIAG_MEMINFO]) {
3299 __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]);
acd1e437 3300
4a0053b6
VK		 3301 stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3302 }
3303
3304 if (tb[PACKET_DIAG_INFO]) {
2631b856 3305 pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
2d791bc8 3306 stat.lport = stat.iface = pinfo->pdi_index;
4a0053b6
VK		 3307 }
3308
f1b39e1b
VK		 3309 if (tb[PACKET_DIAG_UID])
3310 stat.uid = *(__u32 *)RTA_DATA(tb[PACKET_DIAG_UID]);
3311
2631b856
VK		 3312 if (tb[PACKET_DIAG_RX_RING])
3313 ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]);
3314
3315 if (tb[PACKET_DIAG_TX_RING])
3316 ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]);
3317
3318 if (tb[PACKET_DIAG_FANOUT]) {
3319 has_fanout = true;
3320 fanout = *(uint32_t *)RTA_DATA(tb[PACKET_DIAG_FANOUT]);
3321 }
3322
4a0053b6
VK		 3323 if (packet_stats_print(&stat, f))
3324 return 0;
3325
2631b856
VK		 3326 if (show_details) {
3327 if (pinfo) {
3328 printf("\n\tver:%d", pinfo->pdi_version);
3329 printf(" cpy_thresh:%d", pinfo->pdi_copy_thresh);
3330 printf(" flags( ");
3331 if (pinfo->pdi_flags & PDI_RUNNING)
3332 printf("running");
3333 if (pinfo->pdi_flags & PDI_AUXDATA)
3334 printf(" auxdata");
3335 if (pinfo->pdi_flags & PDI_ORIGDEV)
3336 printf(" origdev");
3337 if (pinfo->pdi_flags & PDI_VNETHDR)
3338 printf(" vnethdr");
3339 if (pinfo->pdi_flags & PDI_LOSS)
3340 printf(" loss");
3341 if (!pinfo->pdi_flags)
3342 printf("0");
3343 printf(" )");
3344 }
3345 if (ring_rx) {
3346 printf("\n\tring_rx(");
3347 packet_show_ring(ring_rx);
3348 printf(")");
3349 }
3350 if (ring_tx) {
3351 printf("\n\tring_tx(");
3352 packet_show_ring(ring_tx);
3353 printf(")");
3354 }
3355 if (has_fanout) {
3356 uint16_t type = (fanout >> 16) & 0xffff;
3357
3358 printf("\n\tfanout(");
3359 printf("id:%d,", fanout & 0xffff);
3360 printf("type:");
3361
3362 if (type == 0)
3363 printf("hash");
3364 else if (type == 1)
3365 printf("lb");
3366 else if (type == 2)
3367 printf("cpu");
3368 else if (type == 3)
3369 printf("roll");
3370 else if (type == 4)
3371 printf("random");
3372 else if (type == 5)
3373 printf("qm");
3374 else
3375 printf("0x%x", type);
3376
3377 printf(")");
3378 }
3379 }
3380
372c30d2
ND		 3381 if (show_bpf && tb[PACKET_DIAG_FILTER]) {
3382 struct sock_filter *fil =
3383 RTA_DATA(tb[PACKET_DIAG_FILTER]);
3384 int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) /
3385 sizeof(struct sock_filter);
3386
3387 printf("\n\tbpf filter (%d): ", num);
3388 while (num) {
3389 printf(" 0x%02x %u %u %u,",
3390 fil->code, fil->jt, fil->jf, fil->k);
3391 num--;
3392 fil++;
3393 }
3394 }
3395 printf("\n");
3396 return 0;
3397}
3398
8a4025f6 3399static int packet_show_netlink(struct filter *f)
372c30d2 3400{
5fb421d4 3401 DIAG_REQUEST(req, struct packet_diag_req r);
372c30d2 3402
372c30d2 3403 req.r.sdiag_family = AF_PACKET;
2631b856
VK		 3404 req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO |
3405 PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT;
372c30d2 3406
8a4025f6 3407 return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock);
372c30d2
ND		 3408}
3409
4a0053b6
VK		 3410static int packet_show_line(char *buf, const struct filter *f, int fam)
3411{
3412 unsigned long long sk;
89f634f9 3413 struct sockstat stat = {};
4a0053b6
VK		 3414 int type, prot, iface, state, rq, uid, ino;
3415
3416 sscanf(buf, "%llx %*d %d %x %d %d %u %u %u",
3417 &sk,
3418 &type, &prot, &iface, &state,
3419 &rq, &uid, &ino);
3420
3421 if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB)))
3422 return 0;
3423 if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB)))
3424 return 0;
3425
3426 stat.type = type;
3427 stat.prot = prot;
2d791bc8 3428 stat.lport = stat.iface = iface;
4a0053b6
VK		 3429 stat.state = state;
3430 stat.rq = rq;
3431 stat.uid = uid;
3432 stat.ino = ino;
2d791bc8
VK		 3433 stat.state = SS_CLOSE;
3434
4a0053b6
VK		 3435 if (packet_stats_print(&stat, f))
3436 return 0;
3437
4a0053b6
VK		 3438 printf("\n");
3439 return 0;
3440}
aba5acdf 3441
d1f28cf1 3442static int packet_show(struct filter *f)
aba5acdf
SH		 3443{
3444 FILE *fp;
b95d28c3 3445 int rc = 0;
3d0b7439 3446
9db7bf15 3447 if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE)))
b9ea445d 3448 return 0;
aba5acdf 3449
4a0053b6
VK		 3450 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
3451 packet_show_netlink(f) == 0)
372c30d2
ND		 3452 return 0;
3453
ab01dbbb 3454 if ((fp = net_packet_open()) == NULL)
aba5acdf 3455 return -1;
4a0053b6 3456 if (generic_record_read(fp, packet_show_line, f, AF_PACKET))
b95d28c3 3457 rc = -1;
aba5acdf 3458
b95d28c3
PS		 3459 fclose(fp);
3460 return rc;
aba5acdf
SH		 3461}
3462
5f24ec0e 3463static int netlink_show_one(struct filter *f,
acd1e437
SH		 3464 int prot, int pid, unsigned int groups,
3465 int state, int dst_pid, unsigned int dst_group,
129709ae
AV		 3466 int rq, int wq,
3467 unsigned long long sk, unsigned long long cb)
3468{
2d791bc8 3469 struct sockstat st;
acd1e437 3470
b217df10
VK		 3471 SPRINT_BUF(prot_buf) = {};
3472 const char *prot_name;
3473 char procname[64] = {};
eef43b50 3474
2d791bc8
VK		 3475 st.state = SS_CLOSE;
3476 st.rq = rq;
3477 st.wq = wq;
be7e4d20 3478 st.local.family = st.remote.family = AF_NETLINK;
2d791bc8 3479
129709ae 3480 if (f->f) {
055840f2
VK		 3481 st.rport = -1;
3482 st.lport = pid;
3483 st.local.data[0] = prot;
055840f2 3484 if (run_ssfilter(f->f, &st) == 0)
5f24ec0e 3485 return 1;
129709ae
AV		 3486 }
3487
be7e4d20 3488 sock_state_print(&st);
eef43b50 3489
b217df10
VK		 3490 if (resolve_services)
3491 prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf));
3492 else
3493 prot_name = int_to_str(prot, prot_buf);
eef43b50 3494
129709ae 3495 if (pid == -1) {
b217df10 3496 procname[0] = '*';
129709ae
AV		 3497 } else if (resolve_services) {
3498 int done = 0;
acd1e437 3499
129709ae
AV		 3500 if (!pid) {
3501 done = 1;
b217df10 3502 strncpy(procname, "kernel", 6);
129709ae 3503 } else if (pid > 0) {
129709ae 3504 FILE *fp;
acd1e437 3505
0ee9052f 3506 snprintf(procname, sizeof(procname), "%s/%d/stat",
129709ae
AV		 3507 getenv("PROC_ROOT") ? : "/proc", pid);
3508 if ((fp = fopen(procname, "r")) != NULL) {
3509 if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
0ee9052f 3510 snprintf(procname+strlen(procname),
3511 sizeof(procname)-strlen(procname),
3512 "/%d", pid);
129709ae
AV		 3513 done = 1;
3514 }
3515 fclose(fp);
3516 }
3517 }
3518 if (!done)
b217df10 3519 int_to_str(pid, procname);
129709ae 3520 } else {
b217df10 3521 int_to_str(pid, procname);
129709ae 3522 }
f271fe01 3523
b217df10
VK		 3524 sock_addr_print(prot_name, ":", procname, NULL);
3525
f271fe01 3526 if (state == NETLINK_CONNECTED) {
b217df10
VK		 3527 char dst_group_buf[30];
3528 char dst_pid_buf[30];
acd1e437 3529
b217df10
VK		 3530 sock_addr_print(int_to_str(dst_group, dst_group_buf), ":",
3531 int_to_str(dst_pid, dst_pid_buf), NULL);
f271fe01 3532 } else {
b217df10 3533 sock_addr_print("", "*", "", NULL);
f271fe01 3534 }
129709ae 3535
116ac927 3536 char *pid_context = NULL;
acd1e437 3537
116ac927
RH		 3538 if (show_proc_ctx) {
3539 /* The pid value will either be:
3540 * 0 if destination kernel - show kernel initial context.
3541 * A valid process pid - use getpidcon.
3542 * A unique value allocated by the kernel or netlink user
3543 * to the process - show context as "not available".
3544 */
3545 if (!pid)
3546 security_get_initial_context("kernel", &pid_context);
3547 else if (pid > 0)
3548 getpidcon(pid, &pid_context);
3549
3550 if (pid_context != NULL) {
3551 printf("proc_ctx=%-*s ", serv_width, pid_context);
3552 free(pid_context);
3553 } else {
3554 printf("proc_ctx=%-*s ", serv_width, "unavailable");
3555 }
3556 }
3557
129709ae
AV		 3558 if (show_details) {
3559 printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups);
3560 }
3561 printf("\n");
3562
5f24ec0e 3563 return 0;
129709ae
AV		 3564}
3565
8a4025f6 3566static int netlink_show_sock(const struct sockaddr_nl *addr,
3567 struct nlmsghdr *nlh, void *arg)
ecb928c8 3568{
8a4025f6 3569 struct filter *f = (struct filter *)arg;
ecb928c8
AV		 3570 struct netlink_diag_msg *r = NLMSG_DATA(nlh);
3571 struct rtattr *tb[NETLINK_DIAG_MAX+1];
3572 int rq = 0, wq = 0;
3573 unsigned long groups = 0;
3574
acd1e437 3575 parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr *)(r+1),
ecb928c8
AV		 3576 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3577
3578 if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS]))
3579 groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]);
3580
3581 if (tb[NETLINK_DIAG_MEMINFO]) {
3582 const __u32 *skmeminfo;
acd1e437 3583
ecb928c8
AV		 3584 skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]);
3585
3586 rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3587 wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC];
3588 }
3589
5f24ec0e 3590 if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups,
ecb928c8 3591 r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group,
5f24ec0e
VK		 3592 rq, wq, 0, 0)) {
3593 return 0;
3594 }
ecb928c8
AV		 3595
3596 if (show_mem) {
3597 printf("\t");
3598 print_skmeminfo(tb, NETLINK_DIAG_MEMINFO);
3599 printf("\n");
3600 }
3601
3602 return 0;
3603}
3604
8a4025f6 3605static int netlink_show_netlink(struct filter *f)
ecb928c8 3606{
5fb421d4 3607 DIAG_REQUEST(req, struct netlink_diag_req r);
ecb928c8
AV		 3608
3609 req.r.sdiag_family = AF_NETLINK;
3610 req.r.sdiag_protocol = NDIAG_PROTO_ALL;
3611 req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO;
3612
8a4025f6 3613 return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock);
ecb928c8
AV		 3614}
3615
d1f28cf1 3616static int netlink_show(struct filter *f)
aba5acdf
SH		 3617{
3618 FILE *fp;
3619 char buf[256];
3620 int prot, pid;
acd1e437 3621 unsigned int groups;
aba5acdf
SH		 3622 int rq, wq, rc;
3623 unsigned long long sk, cb;
3624
9db7bf15 3625 if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE)))
b9ea445d
VK		 3626 return 0;
3627
129709ae 3628 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
8a4025f6 3629 netlink_show_netlink(f) == 0)
129709ae
AV		 3630 return 0;
3631
ab01dbbb 3632 if ((fp = net_netlink_open()) == NULL)
aba5acdf 3633 return -1;
61170fd8 3634 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3635 fclose(fp);
3636 return -1;
3637 }
aba5acdf 3638
61170fd8 3639 while (fgets(buf, sizeof(buf), fp)) {
aba5acdf
SH		 3640 sscanf(buf, "%llx %d %d %x %d %d %llx %d",
3641 &sk,
3642 &prot, &pid, &groups, &rq, &wq, &cb, &rc);
3643
f271fe01 3644 netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb);
aba5acdf
SH		 3645 }
3646
b95d28c3 3647 fclose(fp);
aba5acdf
SH		 3648 return 0;
3649}
3650
6885e3bf
CG		 3651struct sock_diag_msg {
3652 __u8 sdiag_family;
3653};
3654
3655static int generic_show_sock(const struct sockaddr_nl *addr,
3656 struct nlmsghdr *nlh, void *arg)
3657{
3658 struct sock_diag_msg *r = NLMSG_DATA(nlh);
3659 struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX };
3660
3661 switch (r->sdiag_family) {
3662 case AF_INET:
3663 case AF_INET6:
3664 return show_one_inet_sock(addr, nlh, &inet_arg);
3665 case AF_UNIX:
3666 return unix_show_sock(addr, nlh, arg);
3667 case AF_PACKET:
3668 return packet_show_sock(addr, nlh, arg);
3669 case AF_NETLINK:
3670 return netlink_show_sock(addr, nlh, arg);
3671 default:
3672 return -1;
3673 }
3674}
3675
3676static int handle_follow_request(struct filter *f)
3677{
6b224dad 3678 int ret = 0;
6885e3bf
CG		 3679 int groups = 0;
3680 struct rtnl_handle rth;
3681
3682 if (f->families & (1 << AF_INET) && f->dbs & (1 << TCP_DB))
3683 groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1);
3684 if (f->families & (1 << AF_INET) && f->dbs & (1 << UDP_DB))
3685 groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1);
3686 if (f->families & (1 << AF_INET6) && f->dbs & (1 << TCP_DB))
3687 groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1);
3688 if (f->families & (1 << AF_INET6) && f->dbs & (1 << UDP_DB))
3689 groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1);
3690
3691 if (groups == 0)
3692 return -1;
3693
3694 if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG))
3695 return -1;
3696
3697 rth.dump = 0;
3698 rth.local.nl_pid = 0;
3699
3700 if (rtnl_dump_filter(&rth, generic_show_sock, f))
6b224dad 3701 ret = -1;
6885e3bf 3702
6885e3bf
CG		 3703 rtnl_close(&rth);
3704 return ret;
3705}
3706
d1f28cf1 3707static int get_snmp_int(char *proto, char *key, int *result)
aba5acdf
SH		 3708{
3709 char buf[1024];
3710 FILE *fp;
3711 int protolen = strlen(proto);
3712 int keylen = strlen(key);
3713
3714 *result = 0;
3715
ab01dbbb 3716 if ((fp = net_snmp_open()) == NULL)
aba5acdf
SH		 3717 return -1;
3718
3719 while (fgets(buf, sizeof(buf), fp) != NULL) {
3720 char *p = buf;
3721 int pos = 0;
acd1e437 3722
aba5acdf
SH		 3723 if (memcmp(buf, proto, protolen))
3724 continue;
3725 while ((p = strchr(p, ' ')) != NULL) {
3726 pos++;
3727 p++;
3728 if (memcmp(p, key, keylen) == 0 &&
3729 (p[keylen] == ' ' || p[keylen] == '\n'))
3730 break;
3731 }
3732 if (fgets(buf, sizeof(buf), fp) == NULL)
3733 break;
3734 if (memcmp(buf, proto, protolen))
3735 break;
3736 p = buf;
3737 while ((p = strchr(p, ' ')) != NULL) {
3738 p++;
3739 if (--pos == 0) {
3740 sscanf(p, "%d", result);
3741 fclose(fp);
3742 return 0;
3743 }
3744 }
3745 }
3746
3747 fclose(fp);
3748 errno = ESRCH;
3749 return -1;
3750}
3751
3752
3753/* Get stats from sockstat */
3754
acd1e437 3755struct ssummary {
aba5acdf
SH		 3756 int socks;
3757 int tcp_mem;
3758 int tcp_total;
3759 int tcp_orphans;
3760 int tcp_tws;
3761 int tcp4_hashed;
3762 int udp4;
3763 int raw4;
3764 int frag4;
3765 int frag4_mem;
3766 int tcp6_hashed;
3767 int udp6;
3768 int raw6;
3769 int frag6;
3770 int frag6_mem;
3771};
3772
055840f2 3773static void get_sockstat_line(char *line, struct ssummary *s)
aba5acdf
SH		 3774{
3775 char id[256], rem[256];
3776
3777 if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2)
3778 return;
3779
3780 if (strcmp(id, "sockets:") == 0)
3781 sscanf(rem, "%*s%d", &s->socks);
3782 else if (strcmp(id, "UDP:") == 0)
3783 sscanf(rem, "%*s%d", &s->udp4);
3784 else if (strcmp(id, "UDP6:") == 0)
3785 sscanf(rem, "%*s%d", &s->udp6);
3786 else if (strcmp(id, "RAW:") == 0)
3787 sscanf(rem, "%*s%d", &s->raw4);
3788 else if (strcmp(id, "RAW6:") == 0)
3789 sscanf(rem, "%*s%d", &s->raw6);
3790 else if (strcmp(id, "TCP6:") == 0)
3791 sscanf(rem, "%*s%d", &s->tcp6_hashed);
3792 else if (strcmp(id, "FRAG:") == 0)
3793 sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem);
3794 else if (strcmp(id, "FRAG6:") == 0)
3795 sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem);
3796 else if (strcmp(id, "TCP:") == 0)
3797 sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d",
3798 &s->tcp4_hashed,
3799 &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem);
3800}
3801
055840f2 3802static int get_sockstat(struct ssummary *s)
aba5acdf
SH		 3803{
3804 char buf[256];
3805 FILE *fp;
3806
3807 memset(s, 0, sizeof(*s));
3808
ab01dbbb 3809 if ((fp = net_sockstat_open()) == NULL)
aba5acdf 3810 return -1;
acd1e437 3811 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3812 get_sockstat_line(buf, s);
3813 fclose(fp);
3814
ab01dbbb 3815 if ((fp = net_sockstat6_open()) == NULL)
aba5acdf 3816 return 0;
acd1e437 3817 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3818 get_sockstat_line(buf, s);
3819 fclose(fp);
3820
3821 return 0;
3822}
3823
d1f28cf1 3824static int print_summary(void)
aba5acdf 3825{
055840f2 3826 struct ssummary s;
2f938ce1 3827 int tcp_estab;
aba5acdf
SH		 3828
3829 if (get_sockstat(&s) < 0)
3830 perror("ss: get_sockstat");
2f938ce1 3831 if (get_snmp_int("Tcp:", "CurrEstab", &tcp_estab) < 0)
aba5acdf
SH		 3832 perror("ss: get_snmpstat");
3833
a221d621
BL		 3834 get_slabstat(&slabstat);
3835
aba5acdf
SH		 3836 printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks);
3837
3838 printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
3839 s.tcp_total + slabstat.tcp_syns + s.tcp_tws,
2f938ce1 3840 tcp_estab,
aba5acdf
SH		 3841 s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws),
3842 s.tcp_orphans,
3843 slabstat.tcp_syns,
3844 s.tcp_tws, slabstat.tcp_tws,
3845 slabstat.tcp_ports
3846 );
3847
3848 printf("\n");
3849 printf("Transport Total IP IPv6\n");
3850 printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-");
3851 printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6);
3852 printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6);
3853 printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed);
ae665a52 3854 printf("INET %-9d %-9d %-9d\n",
aba5acdf
SH		 3855 s.raw4+s.udp4+s.tcp4_hashed+
3856 s.raw6+s.udp6+s.tcp6_hashed,
3857 s.raw4+s.udp4+s.tcp4_hashed,
3858 s.raw6+s.udp6+s.tcp6_hashed);
3859 printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6);
3860
3861 printf("\n");
3862
3863 return 0;
3864}
3865
7a96e199 3866static void _usage(FILE *dest)
aba5acdf 3867{
7a96e199 3868 fprintf(dest,
aba5acdf
SH		 3869"Usage: ss [ OPTIONS ]\n"
3870" ss [ OPTIONS ] [ FILTER ]\n"
ff041f16
VK		 3871" -h, --help this message\n"
3872" -V, --version output version information\n"
3873" -n, --numeric don't resolve service names\n"
ab61159a 3874" -r, --resolve resolve host names\n"
ff041f16
VK		 3875" -a, --all display all sockets\n"
3876" -l, --listening display listening sockets\n"
ab61159a
SH		 3877" -o, --options show timer information\n"
3878" -e, --extended show detailed socket information\n"
3879" -m, --memory show socket memory usage\n"
ff041f16
VK		 3880" -p, --processes show process using socket\n"
3881" -i, --info show internal TCP information\n"
3882" -s, --summary show socket usage summary\n"
b0f01cf6 3883" -b, --bpf show bpf filter socket information\n"
6885e3bf 3884" -E, --events continually display sockets as they are destroyed\n"
ff041f16
VK		 3885" -Z, --context display process SELinux security contexts\n"
3886" -z, --contexts display process and socket SELinux security contexts\n"
95ce04bc 3887" -N, --net switch to the specified network namespace name\n"
ab61159a
SH		 3888"\n"
3889" -4, --ipv4 display only IP version 4 sockets\n"
3890" -6, --ipv6 display only IP version 6 sockets\n"
ff041f16
VK		 3891" -0, --packet display PACKET sockets\n"
3892" -t, --tcp display only TCP sockets\n"
f89d46ad 3893" -S, --sctp display only SCTP sockets\n"
ff041f16
VK		 3894" -u, --udp display only UDP sockets\n"
3895" -d, --dccp display only DCCP sockets\n"
3896" -w, --raw display only RAW sockets\n"
3897" -x, --unix display only Unix domain sockets\n"
ab61159a 3898" -f, --family=FAMILY display sockets of type FAMILY\n"
ebef3174 3899" FAMILY := {inet|inet6|link|unix|netlink|help}\n"
ab61159a 3900"\n"
fb2594c1 3901" -K, --kill forcibly close sockets, display what was closed\n"
7a4559f6 3902" -H, --no-header Suppress header line\n"
fb2594c1 3903"\n"
583de149 3904" -A, --query=QUERY, --socket=QUERY\n"
56dee73e 3905" QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n"
ab61159a 3906"\n"
583de149 3907" -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
ab61159a 3908" -F, --filter=FILE read filter information from FILE\n"
ff041f16
VK		 3909" FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
3910" STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
3911" TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listen|closing}\n"
3912" connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3913" synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3914" bucket := {syn-recv|time-wait}\n"
3915" big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listen|closing}\n"
ab61159a 3916 );
7a96e199
AH		 3917}
3918
3919static void help(void) __attribute__((noreturn));
3920static void help(void)
3921{
3922 _usage(stdout);
3923 exit(0);
3924}
3925
3926static void usage(void) __attribute__((noreturn));
3927static void usage(void)
3928{
3929 _usage(stderr);
aba5acdf
SH		 3930 exit(-1);
3931}
3932
3933
d1f28cf1 3934static int scan_state(const char *state)
aba5acdf
SH		 3935{
3936 int i;
acd1e437 3937
aba5acdf
SH		 3938 if (strcasecmp(state, "close") == 0 ||
3939 strcasecmp(state, "closed") == 0)
3940 return (1<<SS_CLOSE);
3941 if (strcasecmp(state, "syn-rcv") == 0)
3942 return (1<<SS_SYN_RECV);
1a5bad5a 3943 if (strcasecmp(state, "established") == 0)
aba5acdf
SH		 3944 return (1<<SS_ESTABLISHED);
3945 if (strcasecmp(state, "all") == 0)
3946 return SS_ALL;
3947 if (strcasecmp(state, "connected") == 0)
3948 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN));
1a5bad5a 3949 if (strcasecmp(state, "synchronized") == 0)
aba5acdf
SH		 3950 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT));
3951 if (strcasecmp(state, "bucket") == 0)
3952 return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT);
3953 if (strcasecmp(state, "big") == 0)
3954 return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT));
acd1e437 3955 for (i = 0; i < SS_MAX; i++) {
1a5bad5a 3956 if (strcasecmp(state, sstate_namel[i]) == 0)
aba5acdf
SH		 3957 return (1<<i);
3958 }
9db7bf15
VK		 3959
3960 fprintf(stderr, "ss: wrong state name: %s\n", state);
3961 exit(-1);
aba5acdf
SH		 3962}
3963
ab61159a
SH		 3964static const struct option long_opts[] = {
3965 { "numeric", 0, 0, 'n' },
3966 { "resolve", 0, 0, 'r' },
3967 { "options", 0, 0, 'o' },
3968 { "extended", 0, 0, 'e' },
3969 { "memory", 0, 0, 'm' },
3970 { "info", 0, 0, 'i' },
3971 { "processes", 0, 0, 'p' },
372c30d2 3972 { "bpf", 0, 0, 'b' },
6885e3bf 3973 { "events", 0, 0, 'E' },
351efcde 3974 { "dccp", 0, 0, 'd' },
ab61159a 3975 { "tcp", 0, 0, 't' },
f89d46ad 3976 { "sctp", 0, 0, 'S' },
ab61159a
SH		 3977 { "udp", 0, 0, 'u' },
3978 { "raw", 0, 0, 'w' },
3979 { "unix", 0, 0, 'x' },
3980 { "all", 0, 0, 'a' },
3981 { "listening", 0, 0, 'l' },
3982 { "ipv4", 0, 0, '4' },
3983 { "ipv6", 0, 0, '6' },
3984 { "packet", 0, 0, '0' },
3985 { "family", 1, 0, 'f' },
3986 { "socket", 1, 0, 'A' },
583de149 3987 { "query", 1, 0, 'A' },
c3f346b0 3988 { "summary", 0, 0, 's' },
583de149 3989 { "diag", 1, 0, 'D' },
ab61159a
SH		 3990 { "filter", 1, 0, 'F' },
3991 { "version", 0, 0, 'V' },
3992 { "help", 0, 0, 'h' },
116ac927
RH		 3993 { "context", 0, 0, 'Z' },
3994 { "contexts", 0, 0, 'z' },
95ce04bc 3995 { "net", 1, 0, 'N' },
fb2594c1 3996 { "kill", 0, 0, 'K' },
7a4559f6 3997 { "no-header", 0, 0, 'H' },
ab61159a 3998 { 0 }
ae665a52 3999
ab61159a
SH		 4000};
4001
aba5acdf
SH		 4002int main(int argc, char *argv[])
4003{
aba5acdf
SH		 4004 int saw_states = 0;
4005 int saw_query = 0;
4006 int do_summary = 0;
7d105b56 4007 const char *dump_tcpdiag = NULL;
aba5acdf
SH		 4008 FILE *filter_fp = NULL;
4009 int ch;
9db7bf15 4010 int state_filter = 0;
95eafe43 4011 int addrp_width, screen_width = 80;
aba5acdf 4012
168d97f9
SH		 4013 while ((ch = getopt_long(argc, argv,
4014 "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHS",
ab61159a 4015 long_opts, NULL)) != EOF) {
acd1e437 4016 switch (ch) {
aba5acdf
SH		 4017 case 'n':
4018 resolve_services = 0;
4019 break;
4020 case 'r':
4021 resolve_hosts = 1;
4022 break;
4023 case 'o':
4024 show_options = 1;
4025 break;
4026 case 'e':
4027 show_options = 1;
4028 show_details++;
4029 break;
4030 case 'm':
4031 show_mem = 1;
4032 break;
4033 case 'i':
4034 show_tcpinfo = 1;
4035 break;
4036 case 'p':
4037 show_users++;
fbc0f876 4038 user_ent_hash_build();
aba5acdf 4039 break;
372c30d2
ND		 4040 case 'b':
4041 show_options = 1;
4042 show_bpf++;
4043 break;
6885e3bf
CG		 4044 case 'E':
4045 follow_events = 1;
4046 break;
351efcde 4047 case 'd':
57ff5a10 4048 filter_db_set(&current_filter, DCCP_DB);
351efcde 4049 break;
aba5acdf 4050 case 't':
57ff5a10 4051 filter_db_set(&current_filter, TCP_DB);
aba5acdf 4052 break;
f89d46ad
PS		 4053 case 'S':
4054 filter_db_set(&current_filter, SCTP_DB);
4055 break;
aba5acdf 4056 case 'u':
57ff5a10 4057 filter_db_set(&current_filter, UDP_DB);
aba5acdf
SH		 4058 break;
4059 case 'w':
57ff5a10 4060 filter_db_set(&current_filter, RAW_DB);
aba5acdf
SH		 4061 break;
4062 case 'x':
9db7bf15 4063 filter_af_set(&current_filter, AF_UNIX);
aba5acdf
SH		 4064 break;
4065 case 'a':
9db7bf15 4066 state_filter = SS_ALL;
aba5acdf
SH		 4067 break;
4068 case 'l':
9db7bf15 4069 state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE);
aba5acdf
SH		 4070 break;
4071 case '4':
9db7bf15 4072 filter_af_set(&current_filter, AF_INET);
aba5acdf
SH		 4073 break;
4074 case '6':
9db7bf15 4075 filter_af_set(&current_filter, AF_INET6);
aba5acdf
SH		 4076 break;
4077 case '0':
9db7bf15 4078 filter_af_set(&current_filter, AF_PACKET);
aba5acdf
SH		 4079 break;
4080 case 'f':
4081 if (strcmp(optarg, "inet") == 0)
9db7bf15 4082 filter_af_set(&current_filter, AF_INET);
aba5acdf 4083 else if (strcmp(optarg, "inet6") == 0)
9db7bf15 4084 filter_af_set(&current_filter, AF_INET6);
aba5acdf 4085 else if (strcmp(optarg, "link") == 0)
9db7bf15 4086 filter_af_set(&current_filter, AF_PACKET);
aba5acdf 4087 else if (strcmp(optarg, "unix") == 0)
9db7bf15 4088 filter_af_set(&current_filter, AF_UNIX);
aba5acdf 4089 else if (strcmp(optarg, "netlink") == 0)
9db7bf15 4090 filter_af_set(&current_filter, AF_NETLINK);
aba5acdf 4091 else if (strcmp(optarg, "help") == 0)
7a96e199 4092 help();
aba5acdf 4093 else {
9db7bf15
VK		 4094 fprintf(stderr, "ss: \"%s\" is invalid family\n",
4095 optarg);
aba5acdf
SH		 4096 usage();
4097 }
4098 break;
4099 case 'A':
4100 {
4101 char *p, *p1;
acd1e437 4102
aba5acdf
SH		 4103 if (!saw_query) {
4104 current_filter.dbs = 0;
7f9dddbe 4105 state_filter = state_filter ?
acd1e437 4106 state_filter : SS_CONN;
aba5acdf
SH		 4107 saw_query = 1;
4108 do_default = 0;
4109 }
4110 p = p1 = optarg;
4111 do {
4112 if ((p1 = strchr(p, ',')) != NULL)
ae665a52 4113 *p1 = 0;
aba5acdf 4114 if (strcmp(p, "all") == 0) {
57ff5a10 4115 filter_default_dbs(&current_filter);
aba5acdf 4116 } else if (strcmp(p, "inet") == 0) {
57ff5a10
VK		 4117 filter_db_set(&current_filter, UDP_DB);
4118 filter_db_set(&current_filter, DCCP_DB);
4119 filter_db_set(&current_filter, TCP_DB);
f89d46ad 4120 filter_db_set(&current_filter, SCTP_DB);
57ff5a10 4121 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4122 } else if (strcmp(p, "udp") == 0) {
57ff5a10 4123 filter_db_set(&current_filter, UDP_DB);
351efcde 4124 } else if (strcmp(p, "dccp") == 0) {
57ff5a10 4125 filter_db_set(&current_filter, DCCP_DB);
aba5acdf 4126 } else if (strcmp(p, "tcp") == 0) {
57ff5a10 4127 filter_db_set(&current_filter, TCP_DB);
f89d46ad
PS		 4128 } else if (strcmp(p, "sctp") == 0) {
4129 filter_db_set(&current_filter, SCTP_DB);
aba5acdf 4130 } else if (strcmp(p, "raw") == 0) {
57ff5a10 4131 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4132 } else if (strcmp(p, "unix") == 0) {
57ff5a10
VK		 4133 filter_db_set(&current_filter, UNIX_ST_DB);
4134 filter_db_set(&current_filter, UNIX_DG_DB);
4135 filter_db_set(&current_filter, UNIX_SQ_DB);
1a5bad5a 4136 } else if (strcasecmp(p, "unix_stream") == 0 ||
aba5acdf 4137 strcmp(p, "u_str") == 0) {
57ff5a10 4138 filter_db_set(&current_filter, UNIX_ST_DB);
1a5bad5a 4139 } else if (strcasecmp(p, "unix_dgram") == 0 ||
aba5acdf 4140 strcmp(p, "u_dgr") == 0) {
57ff5a10 4141 filter_db_set(&current_filter, UNIX_DG_DB);
30b669d7
MY		 4142 } else if (strcasecmp(p, "unix_seqpacket") == 0 ||
4143 strcmp(p, "u_seq") == 0) {
57ff5a10 4144 filter_db_set(&current_filter, UNIX_SQ_DB);
aba5acdf 4145 } else if (strcmp(p, "packet") == 0) {
57ff5a10
VK		 4146 filter_db_set(&current_filter, PACKET_R_DB);
4147 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf
SH		 4148 } else if (strcmp(p, "packet_raw") == 0 ||
4149 strcmp(p, "p_raw") == 0) {
57ff5a10 4150 filter_db_set(&current_filter, PACKET_R_DB);
aba5acdf
SH		 4151 } else if (strcmp(p, "packet_dgram") == 0 ||
4152 strcmp(p, "p_dgr") == 0) {
57ff5a10 4153 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf 4154 } else if (strcmp(p, "netlink") == 0) {
57ff5a10 4155 filter_db_set(&current_filter, NETLINK_DB);
aba5acdf
SH		 4156 } else {
4157 fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p);
4158 usage();
4159 }
4160 p = p1 + 1;
4161 } while (p1);
4162 break;
4163 }
4164 case 's':
4165 do_summary = 1;
4166 break;
4167 case 'D':
4168 dump_tcpdiag = optarg;
4169 break;
4170 case 'F':
4171 if (filter_fp) {
4172 fprintf(stderr, "More than one filter file\n");
4173 exit(-1);
4174 }
4175 if (optarg[0] == '-')
4176 filter_fp = stdin;
4177 else
4178 filter_fp = fopen(optarg, "r");
4179 if (!filter_fp) {
4180 perror("fopen filter file");
4181 exit(-1);
4182 }
4183 break;
4184 case 'v':
4185 case 'V':
4186 printf("ss utility, iproute2-ss%s\n", SNAPSHOT);
4187 exit(0);
116ac927
RH		 4188 case 'z':
4189 show_sock_ctx++;
36df1a6e 4190 /* fall through */
116ac927
RH		 4191 case 'Z':
4192 if (is_selinux_enabled() <= 0) {
4193 fprintf(stderr, "ss: SELinux is not enabled.\n");
4194 exit(1);
4195 }
4196 show_proc_ctx++;
4197 user_ent_hash_build();
4198 break;
95ce04bc
VK		 4199 case 'N':
4200 if (netns_switch(optarg))
4201 exit(1);
4202 break;
fb2594c1
LC		 4203 case 'K':
4204 current_filter.kill = 1;
4205 break;
7a4559f6
DA		 4206 case 'H':
4207 show_header = 0;
4208 break;
aba5acdf 4209 case 'h':
7a96e199 4210 help();
f73105ab 4211 case '?':
aba5acdf
SH		 4212 default:
4213 usage();
4214 }
4215 }
4216
4217 argc -= optind;
4218 argv += optind;
4219
aba5acdf
SH		 4220 if (do_summary) {
4221 print_summary();
4222 if (do_default && argc == 0)
4223 exit(0);
4224 }
4225
aba5acdf
SH		 4226 while (argc > 0) {
4227 if (strcmp(*argv, "state") == 0) {
4228 NEXT_ARG();
4229 if (!saw_states)
9db7bf15
VK		 4230 state_filter = 0;
4231 state_filter |= scan_state(*argv);
aba5acdf
SH		 4232 saw_states = 1;
4233 } else if (strcmp(*argv, "exclude") == 0 ||
4234 strcmp(*argv, "excl") == 0) {
4235 NEXT_ARG();
4236 if (!saw_states)
9db7bf15
VK		 4237 state_filter = SS_ALL;
4238 state_filter &= ~scan_state(*argv);
aba5acdf
SH		 4239 saw_states = 1;
4240 } else {
aba5acdf
SH		 4241 break;
4242 }
4243 argc--; argv++;
4244 }
4245
9db7bf15
VK		 4246 if (do_default) {
4247 state_filter = state_filter ? state_filter : SS_CONN;
4248 filter_default_dbs(&current_filter);
9db7bf15
VK		 4249 }
4250
57ff5a10
VK		 4251 filter_states_set(&current_filter, state_filter);
4252 filter_merge_defaults(&current_filter);
4253
9db7bf15 4254 if (resolve_services && resolve_hosts &&
168d97f9 4255 (current_filter.dbs & (UNIX_DBM|INET_L4_DBM)))
9db7bf15
VK		 4256 init_service_resolver();
4257
9db7bf15
VK		 4258 if (current_filter.dbs == 0) {
4259 fprintf(stderr, "ss: no socket tables to show with such filter.\n");
4260 exit(0);
4261 }
4262 if (current_filter.families == 0) {
4263 fprintf(stderr, "ss: no families to show with such filter.\n");
4264 exit(0);
4265 }
aba5acdf
SH		 4266 if (current_filter.states == 0) {
4267 fprintf(stderr, "ss: no socket states to show with such filter.\n");
4268 exit(0);
4269 }
4270
4271 if (dump_tcpdiag) {
4272 FILE *dump_fp = stdout;
acd1e437 4273
aba5acdf
SH		 4274 if (!(current_filter.dbs & (1<<TCP_DB))) {
4275 fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n");
4276 exit(0);
4277 }
4278 if (dump_tcpdiag[0] != '-') {
4279 dump_fp = fopen(dump_tcpdiag, "w");
4280 if (!dump_tcpdiag) {
4281 perror("fopen dump file");
4282 exit(-1);
4283 }
4284 }
3fe5b534 4285 inet_show_netlink(&current_filter, dump_fp, IPPROTO_TCP);
aba5acdf
SH		 4286 fflush(dump_fp);
4287 exit(0);
4288 }
4289
1527a17e
VK		 4290 if (ssfilter_parse(&current_filter.f, argc, argv, filter_fp))
4291 usage();
4292
aba5acdf
SH		 4293 netid_width = 0;
4294 if (current_filter.dbs&(current_filter.dbs-1))
4295 netid_width = 5;
4296
4297 state_width = 0;
4298 if (current_filter.states&(current_filter.states-1))
4299 state_width = 10;
4300
aba5acdf
SH		 4301 if (isatty(STDOUT_FILENO)) {
4302 struct winsize w;
4303
4304 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) {
4305 if (w.ws_col > 0)
4306 screen_width = w.ws_col;
4307 }
4308 }
4309
4310 addrp_width = screen_width;
4311 addrp_width -= netid_width+1;
4312 addrp_width -= state_width+1;
4313 addrp_width -= 14;
4314
4315 if (addrp_width&1) {
4316 if (netid_width)
4317 netid_width++;
4318 else if (state_width)
4319 state_width++;
4320 }
4321
4322 addrp_width /= 2;
4323 addrp_width--;
4324
4325 serv_width = resolve_services ? 7 : 5;
4326
4327 if (addrp_width < 15+serv_width+1)
4328 addrp_width = 15+serv_width+1;
4329
ae665a52 4330 addr_width = addrp_width - serv_width - 1;
aba5acdf 4331
7a4559f6
DA		 4332 if (show_header) {
4333 if (netid_width)
4334 printf("%-*s ", netid_width, "Netid");
4335 if (state_width)
4336 printf("%-*s ", state_width, "State");
4337 printf("%-6s %-6s ", "Recv-Q", "Send-Q");
4338 }
aba5acdf 4339
d68e00f7 4340 /* Make enough space for the local/remote port field */
4341 addr_width -= 13;
4342 serv_width += 13;
2dc85485 4343
7a4559f6
DA		 4344 if (show_header) {
4345 printf("%*s:%-*s %*s:%-*s\n",
4346 addr_width, "Local Address", serv_width, "Port",
4347 addr_width, "Peer Address", serv_width, "Port");
4348 }
aba5acdf 4349
aba5acdf
SH		 4350 fflush(stdout);
4351
6885e3bf
CG		 4352 if (follow_events)
4353 exit(handle_follow_request(&current_filter));
4354
aba5acdf
SH		 4355 if (current_filter.dbs & (1<<NETLINK_DB))
4356 netlink_show(&current_filter);
4357 if (current_filter.dbs & PACKET_DBM)
4358 packet_show(&current_filter);
4359 if (current_filter.dbs & UNIX_DBM)
4360 unix_show(&current_filter);
4361 if (current_filter.dbs & (1<<RAW_DB))
4362 raw_show(&current_filter);
4363 if (current_filter.dbs & (1<<UDP_DB))
4364 udp_show(&current_filter);
4365 if (current_filter.dbs & (1<<TCP_DB))
3fe5b534 4366 tcp_show(&current_filter, IPPROTO_TCP);
351efcde 4367 if (current_filter.dbs & (1<<DCCP_DB))
3fe5b534 4368 tcp_show(&current_filter, IPPROTO_DCCP);
f89d46ad
PS		 4369 if (current_filter.dbs & (1<<SCTP_DB))
4370 sctp_show(&current_filter);
116ac927
RH		 4371
4372 if (show_users || show_proc_ctx || show_sock_ctx)
4373 user_ent_destroy();
4374
aba5acdf
SH		 4375 return 0;
4376}
Upstream mirror of iproute2