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ss: introduce proc_ctx_print()
[mirror_iproute2.git] / misc / ss.c
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b9de3ecf 1/*
aba5acdf
SH		 2 * ss.c "sockstat", socket statistics
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
10 */
11
12#include <stdio.h>
13#include <stdlib.h>
14#include <unistd.h>
15#include <syslog.h>
16#include <fcntl.h>
17#include <sys/ioctl.h>
18#include <sys/socket.h>
19#include <sys/uio.h>
20#include <netinet/in.h>
21#include <string.h>
22#include <errno.h>
23#include <netdb.h>
24#include <arpa/inet.h>
aba5acdf
SH		 25#include <dirent.h>
26#include <fnmatch.h>
ab61159a 27#include <getopt.h>
bf4ceee6 28#include <stdbool.h>
6b376ebd 29#include <limits.h>
aba5acdf
SH		 30
31#include "utils.h"
32#include "rt_names.h"
33#include "ll_map.h"
34#include "libnetlink.h"
95ce04bc 35#include "namespace.h"
aba5acdf
SH		 36#include "SNAPSHOT.h"
37
9cb1eccf 38#include <linux/tcp.h>
f6062360 39#include <linux/sock_diag.h>
351efcde 40#include <linux/inet_diag.h>
dfbaa90d 41#include <linux/unix_diag.h>
372c30d2
ND		 42#include <linux/netdevice.h> /* for MAX_ADDR_LEN */
43#include <linux/filter.h>
44#include <linux/packet_diag.h>
ecb928c8 45#include <linux/netlink_diag.h>
f89d46ad 46#include <linux/sctp.h>
aba5acdf 47
8a4025f6 48#define MAGIC_SEQ 123456
49
5fb421d4 50#define DIAG_REQUEST(_req, _r) \
51 struct { \
52 struct nlmsghdr nlh; \
53 _r; \
54 } _req = { \
55 .nlh = { \
56 .nlmsg_type = SOCK_DIAG_BY_FAMILY, \
57 .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\
8a4025f6 58 .nlmsg_seq = MAGIC_SEQ, \
5fb421d4 59 .nlmsg_len = sizeof(_req), \
60 }, \
61 }
62
116ac927
RH		 63#if HAVE_SELINUX
64#include <selinux/selinux.h>
65#else
66/* Stubs for SELinux functions */
67static int is_selinux_enabled(void)
68{
69 return -1;
70}
71
72static int getpidcon(pid_t pid, char **context)
73{
74 *context = NULL;
75 return -1;
76}
77
78static int getfilecon(char *path, char **context)
79{
80 *context = NULL;
81 return -1;
82}
83
84static int security_get_initial_context(char *name, char **context)
85{
86 *context = NULL;
87 return -1;
88}
89#endif
90
acd1e437 91int resolve_hosts;
aba5acdf
SH		 92int resolve_services = 1;
93int preferred_family = AF_UNSPEC;
acd1e437
SH		 94int show_options;
95int show_details;
96int show_users;
97int show_mem;
98int show_tcpinfo;
99int show_bpf;
100int show_proc_ctx;
101int show_sock_ctx;
7a4559f6 102int show_header = 1;
116ac927 103/* If show_users & show_proc_ctx only do user_ent_hash_build() once */
acd1e437
SH		 104int user_ent_hash_build_init;
105int follow_events;
f89d46ad 106int sctp_ino;
aba5acdf
SH		 107
108int netid_width;
109int state_width;
110int addrp_width;
111int addr_width;
112int serv_width;
113int screen_width;
114
115static const char *TCP_PROTO = "tcp";
f89d46ad 116static const char *SCTP_PROTO = "sctp";
aba5acdf
SH		 117static const char *UDP_PROTO = "udp";
118static const char *RAW_PROTO = "raw";
acd1e437 119static const char *dg_proto;
aba5acdf 120
acd1e437 121enum {
aba5acdf 122 TCP_DB,
351efcde 123 DCCP_DB,
aba5acdf
SH		 124 UDP_DB,
125 RAW_DB,
126 UNIX_DG_DB,
127 UNIX_ST_DB,
30b669d7 128 UNIX_SQ_DB,
aba5acdf
SH		 129 PACKET_DG_DB,
130 PACKET_R_DB,
131 NETLINK_DB,
f89d46ad 132 SCTP_DB,
aba5acdf
SH		 133 MAX_DB
134};
135
136#define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
30b669d7 137#define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB))
aba5acdf 138#define ALL_DB ((1<<MAX_DB)-1)
168d97f9
SH		 139#define INET_L4_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<SCTP_DB))
140#define INET_DBM (INET_L4_DBM | (1<<RAW_DB))
aba5acdf
SH		 141
142enum {
7d105b56
SH		 143 SS_UNKNOWN,
144 SS_ESTABLISHED,
145 SS_SYN_SENT,
146 SS_SYN_RECV,
147 SS_FIN_WAIT1,
148 SS_FIN_WAIT2,
149 SS_TIME_WAIT,
150 SS_CLOSE,
151 SS_CLOSE_WAIT,
152 SS_LAST_ACK,
153 SS_LISTEN,
154 SS_CLOSING,
155 SS_MAX
aba5acdf
SH		 156};
157
f89d46ad
PS		 158enum {
159 SCTP_STATE_CLOSED = 0,
160 SCTP_STATE_COOKIE_WAIT = 1,
161 SCTP_STATE_COOKIE_ECHOED = 2,
162 SCTP_STATE_ESTABLISHED = 3,
163 SCTP_STATE_SHUTDOWN_PENDING = 4,
164 SCTP_STATE_SHUTDOWN_SENT = 5,
165 SCTP_STATE_SHUTDOWN_RECEIVED = 6,
166 SCTP_STATE_SHUTDOWN_ACK_SENT = 7,
167};
168
9db7bf15
VK		 169#define SS_ALL ((1 << SS_MAX) - 1)
170#define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)))
aba5acdf
SH		 171
172#include "ssfilter.h"
173
acd1e437 174struct filter {
aba5acdf
SH		 175 int dbs;
176 int states;
177 int families;
178 struct ssfilter *f;
fb2594c1 179 bool kill;
aba5acdf
SH		 180};
181
9db7bf15
VK		 182static const struct filter default_dbs[MAX_DB] = {
183 [TCP_DB] = {
184 .states = SS_CONN,
185 .families = (1 << AF_INET) | (1 << AF_INET6),
186 },
187 [DCCP_DB] = {
188 .states = SS_CONN,
189 .families = (1 << AF_INET) | (1 << AF_INET6),
190 },
191 [UDP_DB] = {
f42a4574 192 .states = (1 << SS_ESTABLISHED),
9db7bf15
VK		 193 .families = (1 << AF_INET) | (1 << AF_INET6),
194 },
195 [RAW_DB] = {
f42a4574 196 .states = (1 << SS_ESTABLISHED),
9db7bf15
VK		 197 .families = (1 << AF_INET) | (1 << AF_INET6),
198 },
199 [UNIX_DG_DB] = {
200 .states = (1 << SS_CLOSE),
201 .families = (1 << AF_UNIX),
202 },
203 [UNIX_ST_DB] = {
204 .states = SS_CONN,
205 .families = (1 << AF_UNIX),
206 },
207 [UNIX_SQ_DB] = {
208 .states = SS_CONN,
209 .families = (1 << AF_UNIX),
210 },
211 [PACKET_DG_DB] = {
212 .states = (1 << SS_CLOSE),
213 .families = (1 << AF_PACKET),
214 },
215 [PACKET_R_DB] = {
216 .states = (1 << SS_CLOSE),
217 .families = (1 << AF_PACKET),
218 },
219 [NETLINK_DB] = {
220 .states = (1 << SS_CLOSE),
221 .families = (1 << AF_NETLINK),
222 },
f89d46ad
PS		 223 [SCTP_DB] = {
224 .states = SS_CONN,
225 .families = (1 << AF_INET) | (1 << AF_INET6),
226 },
aba5acdf
SH		 227};
228
9db7bf15
VK		 229static const struct filter default_afs[AF_MAX] = {
230 [AF_INET] = {
231 .dbs = INET_DBM,
232 .states = SS_CONN,
233 },
234 [AF_INET6] = {
235 .dbs = INET_DBM,
236 .states = SS_CONN,
237 },
238 [AF_UNIX] = {
239 .dbs = UNIX_DBM,
240 .states = SS_CONN,
241 },
242 [AF_PACKET] = {
243 .dbs = PACKET_DBM,
244 .states = (1 << SS_CLOSE),
245 },
246 [AF_NETLINK] = {
247 .dbs = (1 << NETLINK_DB),
248 .states = (1 << SS_CLOSE),
249 },
250};
251
252static int do_default = 1;
253static struct filter current_filter;
254
255static void filter_db_set(struct filter *f, int db)
256{
257 f->states |= default_dbs[db].states;
9db7bf15
VK		 258 f->dbs |= 1 << db;
259 do_default = 0;
260}
261
262static void filter_af_set(struct filter *f, int af)
263{
1527a17e
VK		 264 f->states |= default_afs[af].states;
265 f->families |= 1 << af;
266 do_default = 0;
267 preferred_family = af;
9db7bf15
VK		 268}
269
270static int filter_af_get(struct filter *f, int af)
271{
272 return f->families & (1 << af);
273}
274
275static void filter_default_dbs(struct filter *f)
276{
277 filter_db_set(f, UDP_DB);
278 filter_db_set(f, DCCP_DB);
279 filter_db_set(f, TCP_DB);
280 filter_db_set(f, RAW_DB);
281 filter_db_set(f, UNIX_ST_DB);
282 filter_db_set(f, UNIX_DG_DB);
283 filter_db_set(f, UNIX_SQ_DB);
284 filter_db_set(f, PACKET_R_DB);
285 filter_db_set(f, PACKET_DG_DB);
286 filter_db_set(f, NETLINK_DB);
f89d46ad 287 filter_db_set(f, SCTP_DB);
9db7bf15
VK		 288}
289
57ff5a10 290static void filter_states_set(struct filter *f, int states)
9db7bf15 291{
57ff5a10 292 if (states)
9d320e1e 293 f->states = states;
57ff5a10 294}
9db7bf15 295
57ff5a10
VK		 296static void filter_merge_defaults(struct filter *f)
297{
298 int db;
299 int af;
9db7bf15 300
57ff5a10
VK		 301 for (db = 0; db < MAX_DB; db++) {
302 if (!(f->dbs & (1 << db)))
303 continue;
9db7bf15 304
57ff5a10
VK		 305 if (!(default_dbs[db].families & f->families))
306 f->families |= default_dbs[db].families;
307 }
308 for (af = 0; af < AF_MAX; af++) {
309 if (!(f->families & (1 << af)))
310 continue;
311
312 if (!(default_afs[af].dbs & f->dbs))
313 f->dbs |= default_afs[af].dbs;
314 }
9db7bf15 315}
aba5acdf 316
ab01dbbb 317static FILE *generic_proc_open(const char *env, const char *name)
aba5acdf 318{
ab01dbbb 319 const char *p = getenv(env);
aba5acdf 320 char store[128];
ab01dbbb 321
aba5acdf
SH		 322 if (!p) {
323 p = getenv("PROC_ROOT") ? : "/proc";
324 snprintf(store, sizeof(store)-1, "%s/%s", p, name);
325 p = store;
326 }
ab01dbbb
SH		 327
328 return fopen(p, "r");
aba5acdf
SH		 329}
330
ab01dbbb 331static FILE *net_tcp_open(void)
aba5acdf
SH		 332{
333 return generic_proc_open("PROC_NET_TCP", "net/tcp");
334}
335
ab01dbbb 336static FILE *net_tcp6_open(void)
aba5acdf
SH		 337{
338 return generic_proc_open("PROC_NET_TCP6", "net/tcp6");
339}
340
ab01dbbb 341static FILE *net_udp_open(void)
aba5acdf
SH		 342{
343 return generic_proc_open("PROC_NET_UDP", "net/udp");
344}
345
ab01dbbb 346static FILE *net_udp6_open(void)
aba5acdf
SH		 347{
348 return generic_proc_open("PROC_NET_UDP6", "net/udp6");
349}
350
ab01dbbb 351static FILE *net_raw_open(void)
aba5acdf
SH		 352{
353 return generic_proc_open("PROC_NET_RAW", "net/raw");
354}
355
ab01dbbb 356static FILE *net_raw6_open(void)
aba5acdf
SH		 357{
358 return generic_proc_open("PROC_NET_RAW6", "net/raw6");
359}
360
ab01dbbb 361static FILE *net_unix_open(void)
aba5acdf
SH		 362{
363 return generic_proc_open("PROC_NET_UNIX", "net/unix");
364}
365
ab01dbbb 366static FILE *net_packet_open(void)
aba5acdf
SH		 367{
368 return generic_proc_open("PROC_NET_PACKET", "net/packet");
369}
370
ab01dbbb 371static FILE *net_netlink_open(void)
aba5acdf
SH		 372{
373 return generic_proc_open("PROC_NET_NETLINK", "net/netlink");
374}
375
ab01dbbb 376static FILE *slabinfo_open(void)
aba5acdf
SH		 377{
378 return generic_proc_open("PROC_SLABINFO", "slabinfo");
379}
380
ab01dbbb 381static FILE *net_sockstat_open(void)
aba5acdf
SH		 382{
383 return generic_proc_open("PROC_NET_SOCKSTAT", "net/sockstat");
384}
385
ab01dbbb 386static FILE *net_sockstat6_open(void)
aba5acdf
SH		 387{
388 return generic_proc_open("PROC_NET_SOCKSTAT6", "net/sockstat6");
389}
390
ab01dbbb 391static FILE *net_snmp_open(void)
aba5acdf
SH		 392{
393 return generic_proc_open("PROC_NET_SNMP", "net/snmp");
394}
395
ab01dbbb 396static FILE *ephemeral_ports_open(void)
aba5acdf
SH		 397{
398 return generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", "sys/net/ipv4/ip_local_port_range");
399}
400
fbc0f876
SF		 401struct user_ent {
402 struct user_ent *next;
403 unsigned int ino;
404 int pid;
405 int fd;
116ac927
RH		 406 char *process;
407 char *process_ctx;
408 char *socket_ctx;
fbc0f876
SF		 409};
410
411#define USER_ENT_HASH_SIZE 256
412struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE];
413
414static int user_ent_hashfn(unsigned int ino)
aba5acdf 415{
fbc0f876 416 int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino;
aba5acdf 417
fbc0f876
SF		 418 return val & (USER_ENT_HASH_SIZE - 1);
419}
420
116ac927
RH		 421static void user_ent_add(unsigned int ino, char *process,
422 int pid, int fd,
423 char *proc_ctx,
424 char *sock_ctx)
fbc0f876
SF		 425{
426 struct user_ent *p, **pp;
aba5acdf 427
116ac927
RH		 428 p = malloc(sizeof(struct user_ent));
429 if (!p) {
430 fprintf(stderr, "ss: failed to malloc buffer\n");
fbc0f876 431 abort();
116ac927 432 }
fbc0f876
SF		 433 p->next = NULL;
434 p->ino = ino;
435 p->pid = pid;
436 p->fd = fd;
116ac927
RH		 437 p->process = strdup(process);
438 p->process_ctx = strdup(proc_ctx);
439 p->socket_ctx = strdup(sock_ctx);
fbc0f876
SF		 440
441 pp = &user_ent_hash[user_ent_hashfn(ino)];
442 p->next = *pp;
443 *pp = p;
444}
aba5acdf 445
116ac927
RH		 446static void user_ent_destroy(void)
447{
448 struct user_ent *p, *p_next;
449 int cnt = 0;
450
451 while (cnt != USER_ENT_HASH_SIZE) {
452 p = user_ent_hash[cnt];
453 while (p) {
454 free(p->process);
455 free(p->process_ctx);
456 free(p->socket_ctx);
457 p_next = p->next;
458 free(p);
459 p = p_next;
460 }
461 cnt++;
462 }
463}
464
fbc0f876
SF		 465static void user_ent_hash_build(void)
466{
467 const char *root = getenv("PROC_ROOT") ? : "/proc/";
468 struct dirent *d;
469 char name[1024];
470 int nameoff;
471 DIR *dir;
116ac927
RH		 472 char *pid_context;
473 char *sock_context;
474 const char *no_ctx = "unavailable";
475
476 /* If show_users & show_proc_ctx set only do this once */
477 if (user_ent_hash_build_init != 0)
478 return;
479
480 user_ent_hash_build_init = 1;
fbc0f876 481
0ee9052f 482 strncpy(name, root, sizeof(name)-1);
483 name[sizeof(name)-1] = 0;
484
fbc0f876 485 if (strlen(name) == 0 || name[strlen(name)-1] != '/')
aba5acdf 486 strcat(name, "/");
fbc0f876 487
aba5acdf 488 nameoff = strlen(name);
fbc0f876
SF		 489
490 dir = opendir(name);
491 if (!dir)
492 return;
aba5acdf
SH		 493
494 while ((d = readdir(dir)) != NULL) {
aba5acdf 495 struct dirent *d1;
aba5acdf 496 char process[16];
116ac927 497 char *p;
fbc0f876
SF		 498 int pid, pos;
499 DIR *dir1;
500 char crap;
aba5acdf
SH		 501
502 if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1)
503 continue;
504
116ac927
RH		 505 if (getpidcon(pid, &pid_context) != 0)
506 pid_context = strdup(no_ctx);
507
0ee9052f 508 snprintf(name + nameoff, sizeof(name) - nameoff, "%d/fd/", pid);
aba5acdf 509 pos = strlen(name);
a02371fb
PS		 510 if ((dir1 = opendir(name)) == NULL) {
511 free(pid_context);
aba5acdf 512 continue;
a02371fb 513 }
aba5acdf 514
fbc0f876 515 process[0] = '\0';
116ac927 516 p = process;
aba5acdf
SH		 517
518 while ((d1 = readdir(dir1)) != NULL) {
fbc0f876
SF		 519 const char *pattern = "socket:[";
520 unsigned int ino;
aba5acdf 521 char lnk[64];
18445b3e 522 int fd;
788731b3 523 ssize_t link_len;
116ac927 524 char tmp[1024];
aba5acdf
SH		 525
526 if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1)
527 continue;
528
0ee9052f 529 snprintf(name+pos, sizeof(name) - pos, "%d", fd);
788731b3
TJ		 530
531 link_len = readlink(name, lnk, sizeof(lnk)-1);
532 if (link_len == -1)
533 continue;
534 lnk[link_len] = '\0';
535
536 if (strncmp(lnk, pattern, strlen(pattern)))
aba5acdf
SH		 537 continue;
538
fbc0f876 539 sscanf(lnk, "socket:[%u]", &ino);
aba5acdf 540
116ac927
RH		 541 snprintf(tmp, sizeof(tmp), "%s/%d/fd/%s",
542 root, pid, d1->d_name);
543
544 if (getfilecon(tmp, &sock_context) <= 0)
545 sock_context = strdup(no_ctx);
546
547 if (*p == '\0') {
aba5acdf 548 FILE *fp;
fbc0f876 549
116ac927
RH		 550 snprintf(tmp, sizeof(tmp), "%s/%d/stat",
551 root, pid);
aba5acdf 552 if ((fp = fopen(tmp, "r")) != NULL) {
d572ed4d
PS		 553 if (fscanf(fp, "%*d (%[^)])", p) < 1)
554 ; /* ignore */
aba5acdf
SH		 555 fclose(fp);
556 }
557 }
116ac927
RH		 558 user_ent_add(ino, p, pid, fd,
559 pid_context, sock_context);
560 free(sock_context);
aba5acdf 561 }
116ac927 562 free(pid_context);
aba5acdf
SH		 563 closedir(dir1);
564 }
565 closedir(dir);
fbc0f876
SF		 566}
567
116ac927
RH		 568enum entry_types {
569 USERS,
570 PROC_CTX,
571 PROC_SOCK_CTX
572};
573
574#define ENTRY_BUF_SIZE 512
acd1e437 575static int find_entry(unsigned int ino, char **buf, int type)
fbc0f876
SF		 576{
577 struct user_ent *p;
578 int cnt = 0;
579 char *ptr;
532ca40a 580 char *new_buf;
116ac927
RH		 581 int len, new_buf_len;
582 int buf_used = 0;
583 int buf_len = 0;
fbc0f876
SF		 584
585 if (!ino)
586 return 0;
587
588 p = user_ent_hash[user_ent_hashfn(ino)];
116ac927 589 ptr = *buf = NULL;
fbc0f876
SF		 590 while (p) {
591 if (p->ino != ino)
592 goto next;
593
116ac927
RH		 594 while (1) {
595 ptr = *buf + buf_used;
596 switch (type) {
597 case USERS:
598 len = snprintf(ptr, buf_len - buf_used,
599 "(\"%s\",pid=%d,fd=%d),",
600 p->process, p->pid, p->fd);
601 break;
602 case PROC_CTX:
603 len = snprintf(ptr, buf_len - buf_used,
604 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),",
605 p->process, p->pid,
606 p->process_ctx, p->fd);
607 break;
608 case PROC_SOCK_CTX:
609 len = snprintf(ptr, buf_len - buf_used,
610 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),",
611 p->process, p->pid,
612 p->process_ctx, p->fd,
613 p->socket_ctx);
614 break;
615 default:
616 fprintf(stderr, "ss: invalid type: %d\n", type);
617 abort();
618 }
fbc0f876 619
116ac927
RH		 620 if (len < 0 || len >= buf_len - buf_used) {
621 new_buf_len = buf_len + ENTRY_BUF_SIZE;
532ca40a 622 new_buf = realloc(*buf, new_buf_len);
116ac927
RH		 623 if (!new_buf) {
624 fprintf(stderr, "ss: failed to malloc buffer\n");
625 abort();
626 }
532ca40a 627 *buf = new_buf;
116ac927
RH		 628 buf_len = new_buf_len;
629 continue;
630 } else {
631 buf_used += len;
632 break;
633 }
634 }
fbc0f876 635 cnt++;
116ac927 636next:
fbc0f876
SF		 637 p = p->next;
638 }
116ac927
RH		 639 if (buf_used) {
640 ptr = *buf + buf_used;
fbc0f876 641 ptr[-1] = '\0';
116ac927 642 }
aba5acdf
SH		 643 return cnt;
644}
645
aba5acdf
SH		 646/* Get stats from slab */
647
acd1e437 648struct slabstat {
aba5acdf
SH		 649 int socks;
650 int tcp_ports;
651 int tcp_tws;
652 int tcp_syns;
653 int skbs;
654};
655
a221d621 656static struct slabstat slabstat;
aba5acdf 657
acd1e437
SH		 658static const char *slabstat_ids[] = {
659
aba5acdf
SH		 660 "sock",
661 "tcp_bind_bucket",
662 "tcp_tw_bucket",
663 "tcp_open_request",
664 "skbuff_head_cache",
665};
666
d1f28cf1 667static int get_slabstat(struct slabstat *s)
aba5acdf
SH		 668{
669 char buf[256];
670 FILE *fp;
671 int cnt;
a221d621
BL		 672 static int slabstat_valid;
673
674 if (slabstat_valid)
675 return 0;
aba5acdf
SH		 676
677 memset(s, 0, sizeof(*s));
678
ab01dbbb
SH		 679 fp = slabinfo_open();
680 if (!fp)
aba5acdf
SH		 681 return -1;
682
683 cnt = sizeof(*s)/sizeof(int);
684
d572ed4d
PS		 685 if (!fgets(buf, sizeof(buf), fp)) {
686 fclose(fp);
687 return -1;
688 }
acd1e437 689 while (fgets(buf, sizeof(buf), fp) != NULL) {
aba5acdf 690 int i;
acd1e437 691
62000e51 692 for (i = 0; i < ARRAY_SIZE(slabstat_ids); i++) {
aba5acdf
SH		 693 if (memcmp(buf, slabstat_ids[i], strlen(slabstat_ids[i])) == 0) {
694 sscanf(buf, "%*s%d", ((int *)s) + i);
695 cnt--;
696 break;
697 }
698 }
699 if (cnt <= 0)
700 break;
701 }
702
a221d621
BL		 703 slabstat_valid = 1;
704
aba5acdf
SH		 705 fclose(fp);
706 return 0;
707}
708
2e7e805d 709static unsigned long long cookie_sk_get(const uint32_t *cookie)
f1b39e1b 710{
2e7e805d 711 return (((unsigned long long)cookie[1] << 31) << 1) | cookie[0];
f1b39e1b
VK		 712}
713
7d105b56
SH		 714static const char *sstate_name[] = {
715 "UNKNOWN",
9cb1eccf
ED		 716 [SS_ESTABLISHED] = "ESTAB",
717 [SS_SYN_SENT] = "SYN-SENT",
718 [SS_SYN_RECV] = "SYN-RECV",
719 [SS_FIN_WAIT1] = "FIN-WAIT-1",
720 [SS_FIN_WAIT2] = "FIN-WAIT-2",
721 [SS_TIME_WAIT] = "TIME-WAIT",
722 [SS_CLOSE] = "UNCONN",
723 [SS_CLOSE_WAIT] = "CLOSE-WAIT",
724 [SS_LAST_ACK] = "LAST-ACK",
acd1e437 725 [SS_LISTEN] = "LISTEN",
9cb1eccf 726 [SS_CLOSING] = "CLOSING",
aba5acdf
SH		 727};
728
f89d46ad
PS		 729static const char *sctp_sstate_name[] = {
730 [SCTP_STATE_CLOSED] = "CLOSED",
731 [SCTP_STATE_COOKIE_WAIT] = "COOKIE_WAIT",
732 [SCTP_STATE_COOKIE_ECHOED] = "COOKIE_ECHOED",
733 [SCTP_STATE_ESTABLISHED] = "ESTAB",
734 [SCTP_STATE_SHUTDOWN_PENDING] = "SHUTDOWN_PENDING",
735 [SCTP_STATE_SHUTDOWN_SENT] = "SHUTDOWN_SENT",
736 [SCTP_STATE_SHUTDOWN_RECEIVED] = "SHUTDOWN_RECEIVED",
737 [SCTP_STATE_SHUTDOWN_ACK_SENT] = "ACK_SENT",
738};
739
7d105b56
SH		 740static const char *sstate_namel[] = {
741 "UNKNOWN",
9cb1eccf
ED		 742 [SS_ESTABLISHED] = "established",
743 [SS_SYN_SENT] = "syn-sent",
744 [SS_SYN_RECV] = "syn-recv",
745 [SS_FIN_WAIT1] = "fin-wait-1",
746 [SS_FIN_WAIT2] = "fin-wait-2",
747 [SS_TIME_WAIT] = "time-wait",
748 [SS_CLOSE] = "unconnected",
749 [SS_CLOSE_WAIT] = "close-wait",
750 [SS_LAST_ACK] = "last-ack",
acd1e437 751 [SS_LISTEN] = "listening",
9cb1eccf 752 [SS_CLOSING] = "closing",
aba5acdf
SH		 753};
754
acd1e437 755struct sockstat {
ec4d0d8a
VK		 756 struct sockstat *next;
757 unsigned int type;
89f634f9 758 uint16_t prot;
41fe6c34 759 uint16_t raw_prot;
8250bc9f
VK		 760 inet_prefix local;
761 inet_prefix remote;
762 int lport;
763 int rport;
764 int state;
765 int rq, wq;
acd1e437
SH		 766 unsigned int ino;
767 unsigned int uid;
8250bc9f
VK		 768 int refcnt;
769 unsigned int iface;
770 unsigned long long sk;
99bb68ff
VK		 771 char *name;
772 char *peer_name;
ec75249b 773 __u32 mark;
055840f2
VK		 774};
775
acd1e437 776struct dctcpstat {
055840f2
VK		 777 unsigned int ce_state;
778 unsigned int alpha;
779 unsigned int ab_ecn;
780 unsigned int ab_tot;
781 bool enabled;
782};
783
acd1e437 784struct tcpstat {
055840f2 785 struct sockstat ss;
8250bc9f
VK		 786 int timer;
787 int timeout;
788 int probes;
d2055ea5 789 char cong_alg[16];
8250bc9f 790 double rto, ato, rtt, rttvar;
d1f338b3 791 int qack, ssthresh, backoff;
8250bc9f
VK		 792 double send_bps;
793 int snd_wscale;
794 int rcv_wscale;
795 int mss;
d1f338b3 796 unsigned int cwnd;
8250bc9f
VK		 797 unsigned int lastsnd;
798 unsigned int lastrcv;
799 unsigned int lastack;
800 double pacing_rate;
801 double pacing_rate_max;
2f579872 802 double delivery_rate;
1a4dda71
ED		 803 unsigned long long bytes_acked;
804 unsigned long long bytes_received;
ecb435ea
CG		 805 unsigned int segs_out;
806 unsigned int segs_in;
414aeec9
MKL		 807 unsigned int data_segs_out;
808 unsigned int data_segs_in;
8250bc9f
VK		 809 unsigned int unacked;
810 unsigned int retrans;
811 unsigned int retrans_total;
812 unsigned int lost;
813 unsigned int sacked;
814 unsigned int fackets;
815 unsigned int reordering;
9e99e495 816 unsigned int not_sent;
8250bc9f 817 double rcv_rtt;
9e99e495 818 double min_rtt;
8250bc9f 819 int rcv_space;
b6c7fc61
YC		 820 unsigned long long busy_time;
821 unsigned long long rwnd_limited;
822 unsigned long long sndbuf_limited;
8250bc9f
VK		 823 bool has_ts_opt;
824 bool has_sack_opt;
825 bool has_ecn_opt;
826 bool has_ecnseen_opt;
827 bool has_fastopen_opt;
828 bool has_wscale_opt;
2f579872 829 bool app_limited;
8250bc9f 830 struct dctcpstat *dctcp;
2f0f9aef 831 struct tcp_bbr_info *bbr_info;
aba5acdf
SH		 832};
833
f89d46ad
PS		 834/* SCTP assocs share the same inode number with their parent endpoint. So if we
835 * have seen the inode number before, it must be an assoc instead of the next
836 * endpoint. */
837static bool is_sctp_assoc(struct sockstat *s, const char *sock_name)
838{
839 if (strcmp(sock_name, "sctp"))
840 return false;
841 if (!sctp_ino || sctp_ino != s->ino)
842 return false;
843 return true;
844}
845
be7e4d20
PS		 846static const char *unix_netid_name(int type)
847{
848 switch (type) {
849 case SOCK_STREAM:
850 return "u_str";
851 case SOCK_SEQPACKET:
852 return "u_seq";
853 case SOCK_DGRAM:
854 default:
855 return "u_dgr";
856 }
857}
858
859static const char *proto_name(int protocol)
2d791bc8 860{
be7e4d20
PS		 861 switch (protocol) {
862 case 0:
863 return "raw";
864 case IPPROTO_UDP:
865 return "udp";
866 case IPPROTO_TCP:
867 return "tcp";
868 case IPPROTO_SCTP:
869 return "sctp";
870 case IPPROTO_DCCP:
871 return "dccp";
872 }
873
874 return "???";
875}
876
877static void sock_state_print(struct sockstat *s)
878{
879 const char *sock_name;
880
881 switch (s->local.family) {
882 case AF_UNIX:
883 sock_name = unix_netid_name(s->type);
884 break;
885 case AF_INET:
886 case AF_INET6:
887 sock_name = proto_name(s->type);
888 break;
889 case AF_PACKET:
890 sock_name = s->type == SOCK_RAW ? "p_raw" : "p_dgr";
891 break;
892 case AF_NETLINK:
893 sock_name = "nl";
894 break;
895 default:
896 sock_name = "unknown";
897 }
898
2d791bc8 899 if (netid_width)
f89d46ad
PS		 900 printf("%-*s ", netid_width,
901 is_sctp_assoc(s, sock_name) ? "" : sock_name);
902 if (state_width) {
903 if (is_sctp_assoc(s, sock_name))
904 printf("`- %-*s ", state_width - 3,
905 sctp_sstate_name[s->state]);
906 else
907 printf("%-*s ", state_width, sstate_name[s->state]);
908 }
2d791bc8
VK		 909
910 printf("%-6d %-6d ", s->rq, s->wq);
911}
912
f1b39e1b
VK		 913static void sock_details_print(struct sockstat *s)
914{
915 if (s->uid)
916 printf(" uid:%u", s->uid);
917
918 printf(" ino:%u", s->ino);
919 printf(" sk:%llx", s->sk);
ec75249b
LC		 920
921 if (s->mark)
922 printf(" fwmark:0x%x", s->mark);
f1b39e1b
VK		 923}
924
b217df10
VK		 925static void sock_addr_print_width(int addr_len, const char *addr, char *delim,
926 int port_len, const char *port, const char *ifname)
927{
928 if (ifname) {
929 printf("%*s%%%s%s%-*s ", addr_len, addr, ifname, delim,
930 port_len, port);
acd1e437 931 } else {
b217df10
VK		 932 printf("%*s%s%-*s ", addr_len, addr, delim, port_len, port);
933 }
934}
935
936static void sock_addr_print(const char *addr, char *delim, const char *port,
937 const char *ifname)
938{
939 sock_addr_print_width(addr_width, addr, delim, serv_width, port, ifname);
940}
941
7d105b56 942static const char *tmr_name[] = {
aba5acdf
SH		 943 "off",
944 "on",
945 "keepalive",
946 "timewait",
947 "persist",
948 "unknown"
949};
950
d1f28cf1 951static const char *print_ms_timer(int timeout)
aba5acdf
SH		 952{
953 static char buf[64];
954 int secs, msecs, minutes;
acd1e437 955
aba5acdf
SH		 956 if (timeout < 0)
957 timeout = 0;
958 secs = timeout/1000;
959 minutes = secs/60;
960 secs = secs%60;
961 msecs = timeout%1000;
962 buf[0] = 0;
963 if (minutes) {
964 msecs = 0;
965 snprintf(buf, sizeof(buf)-16, "%dmin", minutes);
966 if (minutes > 9)
967 secs = 0;
968 }
969 if (secs) {
970 if (secs > 9)
971 msecs = 0;
972 sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec");
973 }
974 if (msecs)
975 sprintf(buf+strlen(buf), "%03dms", msecs);
976 return buf;
e7113c61 977}
aba5acdf 978
22588a0e 979struct scache {
aba5acdf
SH		 980 struct scache *next;
981 int port;
982 char *name;
983 const char *proto;
984};
985
986struct scache *rlist;
987
d1f28cf1 988static void init_service_resolver(void)
aba5acdf
SH		 989{
990 char buf[128];
991 FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
596307ea
PS		 992
993 if (!fp)
994 return;
995
996 if (!fgets(buf, sizeof(buf), fp)) {
2bcc3c16 997 pclose(fp);
596307ea
PS		 998 return;
999 }
1000 while (fgets(buf, sizeof(buf), fp) != NULL) {
1001 unsigned int progn, port;
1002 char proto[128], prog[128] = "rpc.";
1003 struct scache *c;
1004
1005 if (sscanf(buf, "%u %*d %s %u %s",
acd1e437 1006 &progn, proto, &port, prog+4) != 4)
596307ea
PS		 1007 continue;
1008
1009 if (!(c = malloc(sizeof(*c))))
1010 continue;
1011
1012 c->port = port;
1013 c->name = strdup(prog);
1014 if (strcmp(proto, TCP_PROTO) == 0)
1015 c->proto = TCP_PROTO;
1016 else if (strcmp(proto, UDP_PROTO) == 0)
1017 c->proto = UDP_PROTO;
f89d46ad
PS		 1018 else if (strcmp(proto, SCTP_PROTO) == 0)
1019 c->proto = SCTP_PROTO;
596307ea
PS		 1020 else
1021 c->proto = NULL;
1022 c->next = rlist;
1023 rlist = c;
aba5acdf 1024 }
596307ea 1025 pclose(fp);
aba5acdf
SH		 1026}
1027
ab61159a
SH		 1028/* Even do not try default linux ephemeral port ranges:
1029 * default /etc/services contains so much of useless crap
1030 * wouldbe "allocated" to this area that resolution
1031 * is really harmful. I shrug each time when seeing
1032 * "socks" or "cfinger" in dumps.
1033 */
1034static int is_ephemeral(int port)
1035{
acd1e437 1036 static int min = 0, max;
c29d3792
PS		 1037
1038 if (!min) {
ab01dbbb 1039 FILE *f = ephemeral_ports_open();
acd1e437 1040
c29d3792
PS		 1041 if (!f || fscanf(f, "%d %d", &min, &max) < 2) {
1042 min = 1024;
1043 max = 4999;
ab61159a 1044 }
c29d3792
PS		 1045 if (f)
1046 fclose(f);
ab61159a 1047 }
c29d3792 1048 return port >= min && port <= max;
ab61159a
SH		 1049}
1050
1051
d1f28cf1 1052static const char *__resolve_service(int port)
aba5acdf
SH		 1053{
1054 struct scache *c;
1055
1056 for (c = rlist; c; c = c->next) {
1057 if (c->port == port && c->proto == dg_proto)
1058 return c->name;
1059 }
1060
ab61159a 1061 if (!is_ephemeral(port)) {
aba5acdf
SH		 1062 static int notfirst;
1063 struct servent *se;
acd1e437 1064
aba5acdf
SH		 1065 if (!notfirst) {
1066 setservent(1);
1067 notfirst = 1;
ae665a52 1068 }
aba5acdf
SH		 1069 se = getservbyport(htons(port), dg_proto);
1070 if (se)
1071 return se->s_name;
1072 }
1073
1074 return NULL;
1075}
1076
22588a0e
ED		 1077#define SCACHE_BUCKETS 1024
1078static struct scache *cache_htab[SCACHE_BUCKETS];
aba5acdf 1079
d1f28cf1 1080static const char *resolve_service(int port)
aba5acdf
SH		 1081{
1082 static char buf[128];
22588a0e
ED		 1083 struct scache *c;
1084 const char *res;
1085 int hash;
aba5acdf
SH		 1086
1087 if (port == 0) {
1088 buf[0] = '*';
1089 buf[1] = 0;
1090 return buf;
1091 }
1092
22588a0e
ED		 1093 if (!resolve_services)
1094 goto do_numeric;
aba5acdf 1095
22588a0e
ED		 1096 if (dg_proto == RAW_PROTO)
1097 return inet_proto_n2a(port, buf, sizeof(buf));
1098
1099
1100 hash = (port^(((unsigned long)dg_proto)>>2)) % SCACHE_BUCKETS;
1101
1102 for (c = cache_htab[hash]; c; c = c->next) {
1103 if (c->port == port && c->proto == dg_proto)
1104 goto do_cache;
aba5acdf
SH		 1105 }
1106
22588a0e
ED		 1107 c = malloc(sizeof(*c));
1108 if (!c)
1109 goto do_numeric;
1110 res = __resolve_service(port);
1111 c->port = port;
1112 c->name = res ? strdup(res) : NULL;
1113 c->proto = dg_proto;
1114 c->next = cache_htab[hash];
1115 cache_htab[hash] = c;
1116
1117do_cache:
1118 if (c->name)
1119 return c->name;
1120
1121do_numeric:
aba5acdf
SH		 1122 sprintf(buf, "%u", port);
1123 return buf;
1124}
1125
b217df10 1126static void inet_addr_print(const inet_prefix *a, int port, unsigned int ifindex)
aba5acdf
SH		 1127{
1128 char buf[1024];
1129 const char *ap = buf;
b217df10
VK		 1130 int est_len = addr_width;
1131 const char *ifname = NULL;
aba5acdf
SH		 1132
1133 if (a->family == AF_INET) {
1134 if (a->data[0] == 0) {
1135 buf[0] = '*';
1136 buf[1] = 0;
1137 } else {
a418e451 1138 ap = format_host(AF_INET, 4, a->data);
aba5acdf
SH		 1139 }
1140 } else {
a418e451 1141 ap = format_host(a->family, 16, a->data);
aba5acdf
SH		 1142 est_len = strlen(ap);
1143 if (est_len <= addr_width)
1144 est_len = addr_width;
1145 else
1146 est_len = addr_width + ((est_len-addr_width+3)/4)*4;
1147 }
b217df10 1148
7c8a3cfb 1149 if (ifindex) {
b217df10
VK		 1150 ifname = ll_index_to_name(ifindex);
1151 est_len -= strlen(ifname) + 1; /* +1 for percent char */
4fcfb6bc
MS		 1152 if (est_len < 0)
1153 est_len = 0;
b217df10 1154 }
7c8a3cfb 1155
b217df10
VK		 1156 sock_addr_print_width(est_len, ap, ":", serv_width, resolve_service(port),
1157 ifname);
aba5acdf
SH		 1158}
1159
acd1e437 1160struct aafilter {
aba5acdf
SH		 1161 inet_prefix addr;
1162 int port;
2d293212 1163 unsigned int iface;
ec75249b
LC		 1164 __u32 mark;
1165 __u32 mask;
aba5acdf
SH		 1166 struct aafilter *next;
1167};
1168
d1f28cf1
SH		 1169static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p,
1170 int plen)
aba5acdf
SH		 1171{
1172 if (!inet_addr_match(a, p, plen))
1173 return 0;
7d105b56 1174
aba5acdf
SH		 1175 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1176 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1177 * sockets. Fair? */
1178 if (p->family == AF_INET && a->family == AF_INET6) {
1179 if (a->data[0] == 0 && a->data[1] == 0 &&
1180 a->data[2] == htonl(0xffff)) {
1181 inet_prefix tmp = *a;
acd1e437 1182
aba5acdf
SH		 1183 tmp.data[0] = a->data[3];
1184 return inet_addr_match(&tmp, p, plen);
1185 }
1186 }
1187 return 1;
1188}
1189
d1f28cf1 1190static int unix_match(const inet_prefix *a, const inet_prefix *p)
aba5acdf 1191{
99bb68ff 1192 char *addr, *pattern;
acd1e437 1193
99bb68ff
VK		 1194 memcpy(&addr, a->data, sizeof(addr));
1195 memcpy(&pattern, p->data, sizeof(pattern));
aba5acdf
SH		 1196 if (pattern == NULL)
1197 return 1;
1198 if (addr == NULL)
1199 addr = "";
1200 return !fnmatch(pattern, addr, 0);
1201}
1202
055840f2 1203static int run_ssfilter(struct ssfilter *f, struct sockstat *s)
aba5acdf
SH		 1204{
1205 switch (f->type) {
1206 case SSF_S_AUTO:
1207 {
aba5acdf 1208 if (s->local.family == AF_UNIX) {
99bb68ff 1209 char *p;
acd1e437 1210
99bb68ff 1211 memcpy(&p, s->local.data, sizeof(p));
aba5acdf 1212 return p == NULL || (p[0] == '@' && strlen(p) == 6 &&
ae665a52 1213 strspn(p+1, "0123456789abcdef") == 5);
aba5acdf
SH		 1214 }
1215 if (s->local.family == AF_PACKET)
bbd303d1 1216 return s->lport == 0 && s->local.data[0] == 0;
aba5acdf
SH		 1217 if (s->local.family == AF_NETLINK)
1218 return s->lport < 0;
1219
c29d3792 1220 return is_ephemeral(s->lport);
aba5acdf
SH		 1221 }
1222 case SSF_DCOND:
1223 {
acd1e437
SH		 1224 struct aafilter *a = (void *)f->pred;
1225
aba5acdf
SH		 1226 if (a->addr.family == AF_UNIX)
1227 return unix_match(&s->remote, &a->addr);
1228 if (a->port != -1 && a->port != s->rport)
1229 return 0;
1230 if (a->addr.bitlen) {
1231 do {
1232 if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen))
1233 return 1;
1234 } while ((a = a->next) != NULL);
1235 return 0;
1236 }
1237 return 1;
1238 }
1239 case SSF_SCOND:
1240 {
acd1e437
SH		 1241 struct aafilter *a = (void *)f->pred;
1242
aba5acdf
SH		 1243 if (a->addr.family == AF_UNIX)
1244 return unix_match(&s->local, &a->addr);
1245 if (a->port != -1 && a->port != s->lport)
1246 return 0;
1247 if (a->addr.bitlen) {
1248 do {
1249 if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen))
1250 return 1;
ae665a52 1251 } while ((a = a->next) != NULL);
aba5acdf
SH		 1252 return 0;
1253 }
1254 return 1;
1255 }
1256 case SSF_D_GE:
1257 {
acd1e437
SH		 1258 struct aafilter *a = (void *)f->pred;
1259
aba5acdf
SH		 1260 return s->rport >= a->port;
1261 }
1262 case SSF_D_LE:
1263 {
acd1e437
SH		 1264 struct aafilter *a = (void *)f->pred;
1265
aba5acdf
SH		 1266 return s->rport <= a->port;
1267 }
1268 case SSF_S_GE:
1269 {
acd1e437
SH		 1270 struct aafilter *a = (void *)f->pred;
1271
aba5acdf
SH		 1272 return s->lport >= a->port;
1273 }
1274 case SSF_S_LE:
1275 {
acd1e437
SH		 1276 struct aafilter *a = (void *)f->pred;
1277
aba5acdf
SH		 1278 return s->lport <= a->port;
1279 }
2d293212
DA		 1280 case SSF_DEVCOND:
1281 {
1282 struct aafilter *a = (void *)f->pred;
aba5acdf 1283
2d293212 1284 return s->iface == a->iface;
ec75249b
LC		 1285 }
1286 case SSF_MARKMASK:
1287 {
1288 struct aafilter *a = (void *)f->pred;
1289
1290 return (s->mark & a->mask) == a->mark;
2d293212 1291 }
aba5acdf
SH		 1292 /* Yup. It is recursion. Sorry. */
1293 case SSF_AND:
1294 return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s);
1295 case SSF_OR:
1296 return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s);
1297 case SSF_NOT:
1298 return !run_ssfilter(f->pred, s);
1299 default:
1300 abort();
1301 }
1302}
1303
ae665a52 1304/* Relocate external jumps by reloc. */
b4b0b7d5 1305static void ssfilter_patch(char *a, int len, int reloc)
aba5acdf
SH		 1306{
1307 while (len > 0) {
acd1e437
SH		 1308 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)a;
1309
aba5acdf
SH		 1310 if (op->no == len+4)
1311 op->no += reloc;
1312 len -= op->yes;
1313 a += op->yes;
1314 }
1315 if (len < 0)
1316 abort();
1317}
1318
b4b0b7d5 1319static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
aba5acdf
SH		 1320{
1321 switch (f->type) {
1322 case SSF_S_AUTO:
1323 {
acd1e437
SH		 1324 if (!(*bytecode = malloc(4))) abort();
1325 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
df39de8d 1326 return 4;
aba5acdf
SH		 1327 }
1328 case SSF_DCOND:
1329 case SSF_SCOND:
1330 {
acd1e437 1331 struct aafilter *a = (void *)f->pred;
aba5acdf
SH		 1332 struct aafilter *b;
1333 char *ptr;
351efcde 1334 int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND);
aba5acdf
SH		 1335 int len = 0;
1336
acd1e437 1337 for (b = a; b; b = b->next) {
351efcde 1338 len += 4 + sizeof(struct inet_diag_hostcond);
aba5acdf
SH		 1339 if (a->addr.family == AF_INET6)
1340 len += 16;
1341 else
1342 len += 4;
1343 if (b->next)
1344 len += 4;
1345 }
1346 if (!(ptr = malloc(len))) abort();
1347 *bytecode = ptr;
acd1e437 1348 for (b = a; b; b = b->next) {
351efcde 1349 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr;
aba5acdf 1350 int alen = (a->addr.family == AF_INET6 ? 16 : 4);
351efcde 1351 int oplen = alen + 4 + sizeof(struct inet_diag_hostcond);
acd1e437 1352 struct inet_diag_hostcond *cond = (struct inet_diag_hostcond *)(ptr+4);
aba5acdf 1353
351efcde 1354 *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 };
aba5acdf
SH		 1355 cond->family = a->addr.family;
1356 cond->port = a->port;
1357 cond->prefix_len = a->addr.bitlen;
1358 memcpy(cond->addr, a->addr.data, alen);
1359 ptr += oplen;
1360 if (b->next) {
351efcde
SH		 1361 op = (struct inet_diag_bc_op *)ptr;
1362 *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)};
aba5acdf
SH		 1363 ptr += 4;
1364 }
1365 }
1366 return ptr - *bytecode;
1367 }
1368 case SSF_D_GE:
1369 {
acd1e437
SH		 1370 struct aafilter *x = (void *)f->pred;
1371
1372 if (!(*bytecode = malloc(8))) abort();
1373 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 };
1374 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1375 return 8;
1376 }
1377 case SSF_D_LE:
1378 {
acd1e437
SH		 1379 struct aafilter *x = (void *)f->pred;
1380
1381 if (!(*bytecode = malloc(8))) abort();
1382 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 };
1383 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1384 return 8;
1385 }
1386 case SSF_S_GE:
1387 {
acd1e437
SH		 1388 struct aafilter *x = (void *)f->pred;
1389
1390 if (!(*bytecode = malloc(8))) abort();
1391 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 };
1392 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1393 return 8;
1394 }
1395 case SSF_S_LE:
1396 {
acd1e437
SH		 1397 struct aafilter *x = (void *)f->pred;
1398
1399 if (!(*bytecode = malloc(8))) abort();
1400 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 };
1401 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1402 return 8;
1403 }
1404
1405 case SSF_AND:
1406 {
376fb868 1407 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1408 int l1, l2;
acd1e437 1409
aba5acdf
SH		 1410 l1 = ssfilter_bytecompile(f->pred, &a1);
1411 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1412 if (!l1 || !l2) {
1413 free(a1);
1414 free(a2);
1415 return 0;
1416 }
aba5acdf
SH		 1417 if (!(a = malloc(l1+l2))) abort();
1418 memcpy(a, a1, l1);
1419 memcpy(a+l1, a2, l2);
1420 free(a1); free(a2);
1421 ssfilter_patch(a, l1, l2);
1422 *bytecode = a;
1423 return l1+l2;
1424 }
1425 case SSF_OR:
1426 {
376fb868 1427 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1428 int l1, l2;
acd1e437 1429
aba5acdf
SH		 1430 l1 = ssfilter_bytecompile(f->pred, &a1);
1431 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1432 if (!l1 || !l2) {
1433 free(a1);
1434 free(a2);
1435 return 0;
1436 }
aba5acdf
SH		 1437 if (!(a = malloc(l1+l2+4))) abort();
1438 memcpy(a, a1, l1);
1439 memcpy(a+l1+4, a2, l2);
1440 free(a1); free(a2);
acd1e437 1441 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 };
aba5acdf
SH		 1442 *bytecode = a;
1443 return l1+l2+4;
1444 }
1445 case SSF_NOT:
1446 {
376fb868 1447 char *a1 = NULL, *a;
2a4fa1c3 1448 int l1;
acd1e437 1449
aba5acdf 1450 l1 = ssfilter_bytecompile(f->pred, &a1);
376fb868
DA		 1451 if (!l1) {
1452 free(a1);
1453 return 0;
1454 }
aba5acdf
SH		 1455 if (!(a = malloc(l1+4))) abort();
1456 memcpy(a, a1, l1);
1457 free(a1);
acd1e437 1458 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 };
aba5acdf
SH		 1459 *bytecode = a;
1460 return l1+4;
2d293212
DA		 1461 }
1462 case SSF_DEVCOND:
1463 {
1464 /* bytecompile for SSF_DEVCOND not supported yet */
1465 return 0;
ec75249b
LC		 1466 }
1467 case SSF_MARKMASK:
1468 {
1469 struct aafilter *a = (void *)f->pred;
1470 struct instr {
1471 struct inet_diag_bc_op op;
1472 struct inet_diag_markcond cond;
1473 };
1474 int inslen = sizeof(struct instr);
1475
1476 if (!(*bytecode = malloc(inslen))) abort();
1477 ((struct instr *)*bytecode)[0] = (struct instr) {
1478 { INET_DIAG_BC_MARK_COND, inslen, inslen + 4 },
1479 { a->mark, a->mask},
1480 };
1481
1482 return inslen;
aba5acdf
SH		 1483 }
1484 default:
1485 abort();
1486 }
1487}
1488
b4b0b7d5 1489static int remember_he(struct aafilter *a, struct hostent *he)
aba5acdf 1490{
ae665a52 1491 char **ptr = he->h_addr_list;
aba5acdf
SH		 1492 int cnt = 0;
1493 int len;
1494
1495 if (he->h_addrtype == AF_INET)
1496 len = 4;
1497 else if (he->h_addrtype == AF_INET6)
1498 len = 16;
1499 else
1500 return 0;
1501
1502 while (*ptr) {
1503 struct aafilter *b = a;
acd1e437 1504
aba5acdf
SH		 1505 if (a->addr.bitlen) {
1506 if ((b = malloc(sizeof(*b))) == NULL)
1507 return cnt;
1508 *b = *a;
1509 b->next = a->next;
1510 a->next = b;
1511 }
1512 memcpy(b->addr.data, *ptr, len);
1513 b->addr.bytelen = len;
1514 b->addr.bitlen = len*8;
1515 b->addr.family = he->h_addrtype;
1516 ptr++;
1517 cnt++;
1518 }
1519 return cnt;
1520}
1521
b4b0b7d5 1522static int get_dns_host(struct aafilter *a, const char *addr, int fam)
aba5acdf
SH		 1523{
1524 static int notfirst;
1525 int cnt = 0;
1526 struct hostent *he;
1527
1528 a->addr.bitlen = 0;
1529 if (!notfirst) {
1530 sethostent(1);
1531 notfirst = 1;
1532 }
1533 he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam);
1534 if (he)
1535 cnt = remember_he(a, he);
1536 if (fam == AF_UNSPEC) {
1537 he = gethostbyname2(addr, AF_INET6);
1538 if (he)
1539 cnt += remember_he(a, he);
1540 }
1541 return !cnt;
1542}
1543
acd1e437 1544static int xll_initted;
aba5acdf 1545
b4b0b7d5 1546static void xll_init(void)
aba5acdf
SH		 1547{
1548 struct rtnl_handle rth;
acd1e437 1549
d2468da0
SH		 1550 if (rtnl_open(&rth, 0) < 0)
1551 exit(1);
1552
aba5acdf
SH		 1553 ll_init_map(&rth);
1554 rtnl_close(&rth);
1555 xll_initted = 1;
1556}
1557
b4b0b7d5 1558static const char *xll_index_to_name(int index)
aba5acdf
SH		 1559{
1560 if (!xll_initted)
1561 xll_init();
1562 return ll_index_to_name(index);
1563}
1564
b4b0b7d5 1565static int xll_name_to_index(const char *dev)
aba5acdf
SH		 1566{
1567 if (!xll_initted)
1568 xll_init();
1569 return ll_name_to_index(dev);
1570}
1571
2d293212
DA		 1572void *parse_devcond(char *name)
1573{
1574 struct aafilter a = { .iface = 0 };
1575 struct aafilter *res;
1576
1577 a.iface = xll_name_to_index(name);
1578 if (a.iface == 0) {
1579 char *end;
930d3f28 1580 unsigned long n;
2d293212 1581
930d3f28
DA		 1582 n = strtoul(name, &end, 0);
1583 if (!end || end == name || *end || n > UINT_MAX)
2d293212 1584 return NULL;
930d3f28
DA		 1585
1586 a.iface = n;
2d293212
DA		 1587 }
1588
1589 res = malloc(sizeof(*res));
1590 *res = a;
1591
1592 return res;
1593}
1594
7871f7db 1595void *parse_hostcond(char *addr, bool is_port)
aba5acdf
SH		 1596{
1597 char *port = NULL;
1527a17e 1598 struct aafilter a = { .port = -1 };
aba5acdf 1599 struct aafilter *res;
1527a17e 1600 int fam = preferred_family;
9db7bf15 1601 struct filter *f = &current_filter;
aba5acdf 1602
1527a17e 1603 if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) {
aba5acdf 1604 char *p;
acd1e437 1605
aba5acdf
SH		 1606 a.addr.family = AF_UNIX;
1607 if (strncmp(addr, "unix:", 5) == 0)
acd1e437 1608 addr += 5;
aba5acdf
SH		 1609 p = strdup(addr);
1610 a.addr.bitlen = 8*strlen(p);
99bb68ff 1611 memcpy(a.addr.data, &p, sizeof(p));
9db7bf15 1612 fam = AF_UNIX;
aba5acdf
SH		 1613 goto out;
1614 }
1615
1527a17e 1616 if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) {
aba5acdf
SH		 1617 a.addr.family = AF_PACKET;
1618 a.addr.bitlen = 0;
1619 if (strncmp(addr, "link:", 5) == 0)
acd1e437 1620 addr += 5;
aba5acdf
SH		 1621 port = strchr(addr, ':');
1622 if (port) {
1623 *port = 0;
1624 if (port[1] && strcmp(port+1, "*")) {
1625 if (get_integer(&a.port, port+1, 0)) {
1626 if ((a.port = xll_name_to_index(port+1)) <= 0)
1627 return NULL;
1628 }
1629 }
1630 }
1631 if (addr[0] && strcmp(addr, "*")) {
1632 unsigned short tmp;
acd1e437 1633
aba5acdf
SH		 1634 a.addr.bitlen = 32;
1635 if (ll_proto_a2n(&tmp, addr))
1636 return NULL;
1637 a.addr.data[0] = ntohs(tmp);
1638 }
9db7bf15 1639 fam = AF_PACKET;
aba5acdf
SH		 1640 goto out;
1641 }
1642
1527a17e 1643 if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) {
aba5acdf
SH		 1644 a.addr.family = AF_NETLINK;
1645 a.addr.bitlen = 0;
1646 if (strncmp(addr, "netlink:", 8) == 0)
acd1e437 1647 addr += 8;
aba5acdf
SH		 1648 port = strchr(addr, ':');
1649 if (port) {
1650 *port = 0;
1651 if (port[1] && strcmp(port+1, "*")) {
1652 if (get_integer(&a.port, port+1, 0)) {
1653 if (strcmp(port+1, "kernel") == 0)
1654 a.port = 0;
1655 else
1656 return NULL;
1657 }
1658 }
1659 }
1660 if (addr[0] && strcmp(addr, "*")) {
1661 a.addr.bitlen = 32;
b00daf6a 1662 if (nl_proto_a2n(&a.addr.data[0], addr) == -1)
1663 return NULL;
aba5acdf 1664 }
9db7bf15 1665 fam = AF_NETLINK;
aba5acdf
SH		 1666 goto out;
1667 }
1668
1527a17e 1669 if (fam == AF_INET || !strncmp(addr, "inet:", 5)) {
aba5acdf 1670 fam = AF_INET;
1527a17e
VK		 1671 if (!strncmp(addr, "inet:", 5))
1672 addr += 5;
1673 } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) {
aba5acdf 1674 fam = AF_INET6;
1527a17e
VK		 1675 if (!strncmp(addr, "inet6:", 6))
1676 addr += 6;
aba5acdf
SH		 1677 }
1678
1679 /* URL-like literal [] */
1680 if (addr[0] == '[') {
1681 addr++;
1682 if ((port = strchr(addr, ']')) == NULL)
1683 return NULL;
1684 *port++ = 0;
1685 } else if (addr[0] == '*') {
1686 port = addr+1;
1687 } else {
1688 port = strrchr(strchr(addr, '/') ? : addr, ':');
1689 }
7871f7db
VK		 1690
1691 if (is_port)
1692 port = addr;
1693
aba5acdf 1694 if (port && *port) {
7871f7db
VK		 1695 if (*port == ':')
1696 *port++ = 0;
1697
aba5acdf
SH		 1698 if (*port && *port != '*') {
1699 if (get_integer(&a.port, port, 0)) {
1700 struct servent *se1 = NULL;
1701 struct servent *se2 = NULL;
acd1e437 1702
aba5acdf
SH		 1703 if (current_filter.dbs&(1<<UDP_DB))
1704 se1 = getservbyname(port, UDP_PROTO);
1705 if (current_filter.dbs&(1<<TCP_DB))
1706 se2 = getservbyname(port, TCP_PROTO);
1707 if (se1 && se2 && se1->s_port != se2->s_port) {
1708 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1709 return NULL;
1710 }
1711 if (!se1)
1712 se1 = se2;
1713 if (se1) {
1714 a.port = ntohs(se1->s_port);
1715 } else {
1716 struct scache *s;
acd1e437 1717
aba5acdf
SH		 1718 for (s = rlist; s; s = s->next) {
1719 if ((s->proto == UDP_PROTO &&
1720 (current_filter.dbs&(1<<UDP_DB))) ||
1721 (s->proto == TCP_PROTO &&
1722 (current_filter.dbs&(1<<TCP_DB)))) {
1723 if (s->name && strcmp(s->name, port) == 0) {
1724 if (a.port > 0 && a.port != s->port) {
1725 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1726 return NULL;
1727 }
1728 a.port = s->port;
1729 }
1730 }
1731 }
1732 if (a.port <= 0) {
1733 fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port);
1734 return NULL;
1735 }
1736 }
1737 }
1738 }
1739 }
7871f7db 1740 if (!is_port && addr && *addr && *addr != '*') {
aba5acdf
SH		 1741 if (get_prefix_1(&a.addr, addr, fam)) {
1742 if (get_dns_host(&a, addr, fam)) {
1743 fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr);
1744 return NULL;
1745 }
1746 }
1747 }
1748
9db7bf15 1749out:
1527a17e 1750 if (fam != AF_UNSPEC) {
e56a959e 1751 int states = f->states;
1527a17e 1752 f->families = 0;
9db7bf15 1753 filter_af_set(f, fam);
e56a959e 1754 filter_states_set(f, states);
1527a17e 1755 }
9db7bf15 1756
aba5acdf
SH		 1757 res = malloc(sizeof(*res));
1758 if (res)
1759 memcpy(res, &a, sizeof(a));
1760 return res;
1761}
1762
ec75249b
LC		 1763void *parse_markmask(const char *markmask)
1764{
1765 struct aafilter a, *res;
1766
1767 if (strchr(markmask, '/')) {
1768 if (sscanf(markmask, "%i/%i", &a.mark, &a.mask) != 2)
1769 return NULL;
1770 } else {
1771 a.mask = 0xffffffff;
1772 if (sscanf(markmask, "%i", &a.mark) != 1)
1773 return NULL;
1774 }
1775
1776 res = malloc(sizeof(*res));
1777 if (res)
1778 memcpy(res, &a, sizeof(a));
1779 return res;
1780}
1781
5f27ac1d 1782static void proc_ctx_print(struct sockstat *s)
8250bc9f 1783{
5f27ac1d 1784 char *buf;
8250bc9f 1785
8250bc9f
VK		 1786 if (show_proc_ctx || show_sock_ctx) {
1787 if (find_entry(s->ino, &buf,
1788 (show_proc_ctx & show_sock_ctx) ?
1789 PROC_SOCK_CTX : PROC_CTX) > 0) {
1790 printf(" users:(%s)", buf);
1791 free(buf);
1792 }
1793 } else if (show_users) {
1794 if (find_entry(s->ino, &buf, USERS) > 0) {
1795 printf(" users:(%s)", buf);
1796 free(buf);
1797 }
1798 }
1799}
1800
5f27ac1d
PS		 1801static void inet_stats_print(struct sockstat *s)
1802{
1803 sock_state_print(s);
1804
1805 inet_addr_print(&s->local, s->lport, s->iface);
1806 inet_addr_print(&s->remote, s->rport, 0);
1807
1808 proc_ctx_print(s);
1809}
1810
055840f2 1811static int proc_parse_inet_addr(char *loc, char *rem, int family, struct
acd1e437 1812 sockstat * s)
8250bc9f
VK		 1813{
1814 s->local.family = s->remote.family = family;
1815 if (family == AF_INET) {
acd1e437
SH		 1816 sscanf(loc, "%x:%x", s->local.data, (unsigned *)&s->lport);
1817 sscanf(rem, "%x:%x", s->remote.data, (unsigned *)&s->rport);
8250bc9f
VK		 1818 s->local.bytelen = s->remote.bytelen = 4;
1819 return 0;
1820 } else {
1821 sscanf(loc, "%08x%08x%08x%08x:%x",
1822 s->local.data,
1823 s->local.data + 1,
1824 s->local.data + 2,
1825 s->local.data + 3,
1826 &s->lport);
1827 sscanf(rem, "%08x%08x%08x%08x:%x",
1828 s->remote.data,
1829 s->remote.data + 1,
1830 s->remote.data + 2,
1831 s->remote.data + 3,
1832 &s->rport);
1833 s->local.bytelen = s->remote.bytelen = 16;
1834 return 0;
1835 }
1836 return -1;
1837}
1838
1839static int proc_inet_split_line(char *line, char **loc, char **rem, char **data)
aba5acdf 1840{
aba5acdf 1841 char *p;
ae665a52 1842
aba5acdf
SH		 1843 if ((p = strchr(line, ':')) == NULL)
1844 return -1;
ae665a52 1845
8250bc9f
VK		 1846 *loc = p+2;
1847 if ((p = strchr(*loc, ':')) == NULL)
aba5acdf 1848 return -1;
ae665a52 1849
8250bc9f
VK		 1850 p[5] = 0;
1851 *rem = p+6;
1852 if ((p = strchr(*rem, ':')) == NULL)
aba5acdf 1853 return -1;
8250bc9f 1854
aba5acdf 1855 p[5] = 0;
8250bc9f
VK		 1856 *data = p+6;
1857 return 0;
1858}
ae665a52 1859
8250bc9f
VK		 1860static char *sprint_bw(char *buf, double bw)
1861{
1862 if (bw > 1000000.)
acd1e437 1863 sprintf(buf, "%.1fM", bw / 1000000.);
8250bc9f 1864 else if (bw > 1000.)
acd1e437 1865 sprintf(buf, "%.1fK", bw / 1000.);
8250bc9f
VK		 1866 else
1867 sprintf(buf, "%g", bw);
aba5acdf 1868
8250bc9f
VK		 1869 return buf;
1870}
ae665a52 1871
f89d46ad
PS		 1872static void sctp_stats_print(struct sctp_info *s)
1873{
1874 if (s->sctpi_tag)
1875 printf(" tag:%x", s->sctpi_tag);
1876 if (s->sctpi_state)
1877 printf(" state:%s", sctp_sstate_name[s->sctpi_state]);
1878 if (s->sctpi_rwnd)
1879 printf(" rwnd:%d", s->sctpi_rwnd);
1880 if (s->sctpi_unackdata)
1881 printf(" unackdata:%d", s->sctpi_unackdata);
1882 if (s->sctpi_penddata)
1883 printf(" penddata:%d", s->sctpi_penddata);
1884 if (s->sctpi_instrms)
1885 printf(" instrms:%d", s->sctpi_instrms);
1886 if (s->sctpi_outstrms)
1887 printf(" outstrms:%d", s->sctpi_outstrms);
1888 if (s->sctpi_inqueue)
1889 printf(" inqueue:%d", s->sctpi_inqueue);
1890 if (s->sctpi_outqueue)
1891 printf(" outqueue:%d", s->sctpi_outqueue);
1892 if (s->sctpi_overall_error)
1893 printf(" overerr:%d", s->sctpi_overall_error);
1894 if (s->sctpi_max_burst)
1895 printf(" maxburst:%d", s->sctpi_max_burst);
1896 if (s->sctpi_maxseg)
1897 printf(" maxseg:%d", s->sctpi_maxseg);
1898 if (s->sctpi_peer_rwnd)
1899 printf(" prwnd:%d", s->sctpi_peer_rwnd);
1900 if (s->sctpi_peer_tag)
1901 printf(" ptag:%x", s->sctpi_peer_tag);
1902 if (s->sctpi_peer_capable)
1903 printf(" pcapable:%d", s->sctpi_peer_capable);
1904 if (s->sctpi_peer_sack)
1905 printf(" psack:%d", s->sctpi_peer_sack);
1906 if (s->sctpi_s_autoclose)
1907 printf(" autoclose:%d", s->sctpi_s_autoclose);
1908 if (s->sctpi_s_adaptation_ind)
1909 printf(" adapind:%d", s->sctpi_s_adaptation_ind);
1910 if (s->sctpi_s_pd_point)
1911 printf(" pdpoint:%d", s->sctpi_s_pd_point);
1912 if (s->sctpi_s_nodelay)
1913 printf(" nodealy:%d", s->sctpi_s_nodelay);
1914 if (s->sctpi_s_disable_fragments)
1915 printf(" nofrag:%d", s->sctpi_s_disable_fragments);
1916 if (s->sctpi_s_v4mapped)
1917 printf(" v4mapped:%d", s->sctpi_s_v4mapped);
1918 if (s->sctpi_s_frag_interleave)
1919 printf(" fraginl:%d", s->sctpi_s_frag_interleave);
1920}
1921
8250bc9f
VK		 1922static void tcp_stats_print(struct tcpstat *s)
1923{
1924 char b1[64];
1925
1926 if (s->has_ts_opt)
1927 printf(" ts");
1928 if (s->has_sack_opt)
1929 printf(" sack");
1930 if (s->has_ecn_opt)
1931 printf(" ecn");
1932 if (s->has_ecnseen_opt)
1933 printf(" ecnseen");
1934 if (s->has_fastopen_opt)
1935 printf(" fastopen");
d2055ea5 1936 if (s->cong_alg[0])
8250bc9f
VK		 1937 printf(" %s", s->cong_alg);
1938 if (s->has_wscale_opt)
1939 printf(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale);
1940 if (s->rto)
1941 printf(" rto:%g", s->rto);
1942 if (s->backoff)
1943 printf(" backoff:%u", s->backoff);
1944 if (s->rtt)
1945 printf(" rtt:%g/%g", s->rtt, s->rttvar);
1946 if (s->ato)
1947 printf(" ato:%g", s->ato);
1948
1949 if (s->qack)
1950 printf(" qack:%d", s->qack);
1951 if (s->qack & 1)
1952 printf(" bidir");
1953
1954 if (s->mss)
1955 printf(" mss:%d", s->mss);
3bf5445c 1956 if (s->cwnd)
d1f338b3 1957 printf(" cwnd:%u", s->cwnd);
8250bc9f
VK		 1958 if (s->ssthresh)
1959 printf(" ssthresh:%d", s->ssthresh);
1960
1a4dda71
ED		 1961 if (s->bytes_acked)
1962 printf(" bytes_acked:%llu", s->bytes_acked);
1963 if (s->bytes_received)
1964 printf(" bytes_received:%llu", s->bytes_received);
ecb435ea
CG		 1965 if (s->segs_out)
1966 printf(" segs_out:%u", s->segs_out);
1967 if (s->segs_in)
1968 printf(" segs_in:%u", s->segs_in);
414aeec9
MKL		 1969 if (s->data_segs_out)
1970 printf(" data_segs_out:%u", s->data_segs_out);
1971 if (s->data_segs_in)
1972 printf(" data_segs_in:%u", s->data_segs_in);
1a4dda71 1973
8250bc9f
VK		 1974 if (s->dctcp && s->dctcp->enabled) {
1975 struct dctcpstat *dctcp = s->dctcp;
1976
3bf5445c 1977 printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
8250bc9f
VK		 1978 dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn,
1979 dctcp->ab_tot);
1980 } else if (s->dctcp) {
3bf5445c 1981 printf(" dctcp:fallback_mode");
8250bc9f
VK		 1982 }
1983
2f0f9aef
NC		 1984 if (s->bbr_info) {
1985 __u64 bw;
1986
1987 bw = s->bbr_info->bbr_bw_hi;
1988 bw <<= 32;
1989 bw |= s->bbr_info->bbr_bw_lo;
1990
1991 printf(" bbr:(bw:%sbps,mrtt:%g",
1992 sprint_bw(b1, bw * 8.0),
1993 (double)s->bbr_info->bbr_min_rtt / 1000.0);
1994 if (s->bbr_info->bbr_pacing_gain)
1995 printf(",pacing_gain:%g",
1996 (double)s->bbr_info->bbr_pacing_gain / 256.0);
1997 if (s->bbr_info->bbr_cwnd_gain)
1998 printf(",cwnd_gain:%g",
1999 (double)s->bbr_info->bbr_cwnd_gain / 256.0);
2000 printf(")");
2001 }
2002
8250bc9f
VK		 2003 if (s->send_bps)
2004 printf(" send %sbps", sprint_bw(b1, s->send_bps));
2005 if (s->lastsnd)
2006 printf(" lastsnd:%u", s->lastsnd);
2007 if (s->lastrcv)
2008 printf(" lastrcv:%u", s->lastrcv);
2009 if (s->lastack)
2010 printf(" lastack:%u", s->lastack);
2011
2012 if (s->pacing_rate) {
2013 printf(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate));
2014 if (s->pacing_rate_max)
2015 printf("/%sbps", sprint_bw(b1,
2016 s->pacing_rate_max));
2017 }
2018
2f579872
NC		 2019 if (s->delivery_rate)
2020 printf(" delivery_rate %sbps", sprint_bw(b1, s->delivery_rate));
2021 if (s->app_limited)
2022 printf(" app_limited");
2023
b6c7fc61
YC		 2024 if (s->busy_time) {
2025 printf(" busy:%llums", s->busy_time / 1000);
2026 if (s->rwnd_limited)
2027 printf(" rwnd_limited:%llums(%.1f%%)",
2028 s->rwnd_limited / 1000,
2029 100.0 * s->rwnd_limited / s->busy_time);
2030 if (s->sndbuf_limited)
2031 printf(" sndbuf_limited:%llums(%.1f%%)",
2032 s->sndbuf_limited / 1000,
2033 100.0 * s->sndbuf_limited / s->busy_time);
2034 }
2035
8250bc9f
VK		 2036 if (s->unacked)
2037 printf(" unacked:%u", s->unacked);
2038 if (s->retrans || s->retrans_total)
2039 printf(" retrans:%u/%u", s->retrans, s->retrans_total);
2040 if (s->lost)
2041 printf(" lost:%u", s->lost);
055840f2 2042 if (s->sacked && s->ss.state != SS_LISTEN)
8250bc9f
VK		 2043 printf(" sacked:%u", s->sacked);
2044 if (s->fackets)
2045 printf(" fackets:%u", s->fackets);
2046 if (s->reordering != 3)
2047 printf(" reordering:%d", s->reordering);
2048 if (s->rcv_rtt)
2049 printf(" rcv_rtt:%g", s->rcv_rtt);
2050 if (s->rcv_space)
2051 printf(" rcv_space:%d", s->rcv_space);
9e99e495
SH		 2052 if (s->not_sent)
2053 printf(" notsent:%u", s->not_sent);
2054 if (s->min_rtt)
2055 printf(" minrtt:%g", s->min_rtt);
8250bc9f
VK		 2056}
2057
055840f2
VK		 2058static void tcp_timer_print(struct tcpstat *s)
2059{
2060 if (s->timer) {
2061 if (s->timer > 4)
2062 s->timer = 5;
2063 printf(" timer:(%s,%s,%d)",
2064 tmr_name[s->timer],
2065 print_ms_timer(s->timeout),
2066 s->retrans);
2067 }
2068}
2069
f89d46ad
PS		 2070static void sctp_timer_print(struct tcpstat *s)
2071{
2072 if (s->timer)
2073 printf(" timer:(T3_RTX,%s,%d)",
2074 print_ms_timer(s->timeout), s->retrans);
2075}
2076
8250bc9f
VK		 2077static int tcp_show_line(char *line, const struct filter *f, int family)
2078{
2079 int rto = 0, ato = 0;
2080 struct tcpstat s = {};
2081 char *loc, *rem, *data;
2082 char opt[256];
2083 int n;
2084 int hz = get_user_hz();
2085
2086 if (proc_inet_split_line(line, &loc, &rem, &data))
2087 return -1;
2088
2089 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2090
8250bc9f
VK		 2091 if (!(f->states & (1 << state)))
2092 return 0;
2093
055840f2 2094 proc_parse_inet_addr(loc, rem, family, &s.ss);
ae665a52 2095
055840f2 2096 if (f->f && run_ssfilter(f->f, &s.ss) == 0)
aba5acdf 2097 return 0;
ae665a52 2098
aba5acdf 2099 opt[0] = 0;
d1f338b3 2100 n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
055840f2
VK		 2101 &s.ss.state, &s.ss.wq, &s.ss.rq,
2102 &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes,
2103 &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd,
2104 &s.ssthresh, opt);
ae665a52 2105
aba5acdf
SH		 2106 if (n < 17)
2107 opt[0] = 0;
ae665a52 2108
aba5acdf 2109 if (n < 12) {
8250bc9f 2110 rto = 0;
aba5acdf
SH		 2111 s.cwnd = 2;
2112 s.ssthresh = -1;
8250bc9f 2113 ato = s.qack = 0;
aba5acdf 2114 }
ae665a52 2115
8250bc9f
VK		 2116 s.retrans = s.timer != 1 ? s.probes : s.retrans;
2117 s.timeout = (s.timeout * 1000 + hz - 1) / hz;
2118 s.ato = (double)ato / hz;
2119 s.qack /= 2;
2120 s.rto = (double)rto;
2121 s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh;
2122 s.rto = s.rto != 3 * hz ? s.rto / hz : 0;
be7e4d20 2123 s.ss.type = IPPROTO_TCP;
ae665a52 2124
be7e4d20 2125 inet_stats_print(&s.ss);
055840f2
VK		 2126
2127 if (show_options)
2128 tcp_timer_print(&s);
116ac927 2129
aba5acdf 2130 if (show_details) {
f1b39e1b 2131 sock_details_print(&s.ss);
aba5acdf
SH		 2132 if (opt[0])
2133 printf(" opt:\"%s\"", opt);
2134 }
aba5acdf 2135
8250bc9f
VK		 2136 if (show_tcpinfo)
2137 tcp_stats_print(&s);
2138
2139 printf("\n");
aba5acdf
SH		 2140 return 0;
2141}
2142
ab01dbbb
SH		 2143static int generic_record_read(FILE *fp,
2144 int (*worker)(char*, const struct filter *, int),
2145 const struct filter *f, int fam)
aba5acdf 2146{
ab01dbbb 2147 char line[256];
aba5acdf 2148
ab01dbbb
SH		 2149 /* skip header */
2150 if (fgets(line, sizeof(line), fp) == NULL)
aba5acdf 2151 goto outerr;
ab01dbbb
SH		 2152
2153 while (fgets(line, sizeof(line), fp) != NULL) {
2154 int n = strlen(line);
acd1e437 2155
ab01dbbb
SH		 2156 if (n == 0 || line[n-1] != '\n') {
2157 errno = -EINVAL;
2158 return -1;
aba5acdf 2159 }
ab01dbbb 2160 line[n-1] = 0;
aba5acdf 2161
ab01dbbb
SH		 2162 if (worker(line, f, fam) < 0)
2163 return 0;
2164 }
aba5acdf 2165outerr:
ab01dbbb
SH		 2166
2167 return ferror(fp) ? -1 : 0;
aba5acdf 2168}
ae665a52 2169
51ff9f24
HFS		 2170static void print_skmeminfo(struct rtattr *tb[], int attrtype)
2171{
2172 const __u32 *skmeminfo;
db08bdb8
VK		 2173
2174 if (!tb[attrtype]) {
2175 if (attrtype == INET_DIAG_SKMEMINFO) {
2176 if (!tb[INET_DIAG_MEMINFO])
2177 return;
2178
2179 const struct inet_diag_meminfo *minfo =
2180 RTA_DATA(tb[INET_DIAG_MEMINFO]);
2181
2182 printf(" mem:(r%u,w%u,f%u,t%u)",
2183 minfo->idiag_rmem,
2184 minfo->idiag_wmem,
2185 minfo->idiag_fmem,
2186 minfo->idiag_tmem);
2187 }
51ff9f24 2188 return;
db08bdb8
VK		 2189 }
2190
51ff9f24
HFS		 2191 skmeminfo = RTA_DATA(tb[attrtype]);
2192
2193 printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2194 skmeminfo[SK_MEMINFO_RMEM_ALLOC],
2195 skmeminfo[SK_MEMINFO_RCVBUF],
2196 skmeminfo[SK_MEMINFO_WMEM_ALLOC],
2197 skmeminfo[SK_MEMINFO_SNDBUF],
2198 skmeminfo[SK_MEMINFO_FWD_ALLOC],
2199 skmeminfo[SK_MEMINFO_WMEM_QUEUED],
2200 skmeminfo[SK_MEMINFO_OPTMEM]);
2201
2202 if (RTA_PAYLOAD(tb[attrtype]) >=
2203 (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32))
2204 printf(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]);
2205
6df9c7a0
ED		 2206 if (RTA_PAYLOAD(tb[attrtype]) >=
2207 (SK_MEMINFO_DROPS + 1) * sizeof(__u32))
2208 printf(",d%u", skmeminfo[SK_MEMINFO_DROPS]);
2209
51ff9f24
HFS		 2210 printf(")");
2211}
2212
8250bc9f
VK		 2213#define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2214
5b816047
PE		 2215static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2216 struct rtattr *tb[])
7d105b56 2217{
b4b0b7d5 2218 double rtt = 0;
8250bc9f 2219 struct tcpstat s = {};
7d105b56 2220
055840f2
VK		 2221 s.ss.state = r->idiag_state;
2222
db08bdb8 2223 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
7d105b56 2224
351efcde 2225 if (tb[INET_DIAG_INFO]) {
05e18118 2226 struct tcp_info *info;
351efcde 2227 int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
05e18118
SH		 2228
2229 /* workaround for older kernels with less fields */
2230 if (len < sizeof(*info)) {
2231 info = alloca(sizeof(*info));
351efcde 2232 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
656e8fdd 2233 memset((char *)info + len, 0, sizeof(*info) - len);
05e18118 2234 } else
351efcde 2235 info = RTA_DATA(tb[INET_DIAG_INFO]);
05e18118 2236
b4b0b7d5 2237 if (show_options) {
8250bc9f
VK		 2238 s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS);
2239 s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK);
2240 s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN);
2241 s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN);
2242 s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA);
b4b0b7d5 2243 }
52d5ac3f 2244
d2055ea5
ED		 2245 if (tb[INET_DIAG_CONG])
2246 strncpy(s.cong_alg,
2247 rta_getattr_str(tb[INET_DIAG_CONG]),
2248 sizeof(s.cong_alg) - 1);
8250bc9f
VK		 2249
2250 if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) {
2251 s.has_wscale_opt = true;
2252 s.snd_wscale = info->tcpi_snd_wscale;
2253 s.rcv_wscale = info->tcpi_rcv_wscale;
2254 }
ea8fc104 2255
7d105b56 2256 if (info->tcpi_rto && info->tcpi_rto != 3000000)
8250bc9f
VK		 2257 s.rto = (double)info->tcpi_rto / 1000;
2258
2259 s.backoff = info->tcpi_backoff;
2260 s.rtt = (double)info->tcpi_rtt / 1000;
2261 s.rttvar = (double)info->tcpi_rttvar / 1000;
11ba90fc 2262 s.ato = (double)info->tcpi_ato / 1000;
8250bc9f
VK		 2263 s.mss = info->tcpi_snd_mss;
2264 s.rcv_space = info->tcpi_rcv_space;
2265 s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000;
2266 s.lastsnd = info->tcpi_last_data_sent;
2267 s.lastrcv = info->tcpi_last_data_recv;
2268 s.lastack = info->tcpi_last_ack_recv;
2269 s.unacked = info->tcpi_unacked;
2270 s.retrans = info->tcpi_retrans;
2271 s.retrans_total = info->tcpi_total_retrans;
2272 s.lost = info->tcpi_lost;
2273 s.sacked = info->tcpi_sacked;
2274 s.reordering = info->tcpi_reordering;
2275 s.rcv_space = info->tcpi_rcv_space;
2276 s.cwnd = info->tcpi_snd_cwnd;
2277
7d105b56 2278 if (info->tcpi_snd_ssthresh < 0xFFFF)
8250bc9f 2279 s.ssthresh = info->tcpi_snd_ssthresh;
52d5ac3f 2280
b4b0b7d5 2281 rtt = (double) info->tcpi_rtt;
351efcde 2282 if (tb[INET_DIAG_VEGASINFO]) {
05e18118 2283 const struct tcpvegas_info *vinfo
351efcde 2284 = RTA_DATA(tb[INET_DIAG_VEGASINFO]);
7d105b56 2285
ae665a52 2286 if (vinfo->tcpv_enabled &&
8250bc9f 2287 vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff)
ea8fc104 2288 rtt = vinfo->tcpv_rtt;
b4b0b7d5
SH		 2289 }
2290
907e1aca 2291 if (tb[INET_DIAG_DCTCPINFO]) {
8250bc9f
VK		 2292 struct dctcpstat *dctcp = malloc(sizeof(struct
2293 dctcpstat));
2294
907e1aca
DB		 2295 const struct tcp_dctcp_info *dinfo
2296 = RTA_DATA(tb[INET_DIAG_DCTCPINFO]);
2297
8250bc9f
VK		 2298 dctcp->enabled = !!dinfo->dctcp_enabled;
2299 dctcp->ce_state = dinfo->dctcp_ce_state;
2300 dctcp->alpha = dinfo->dctcp_alpha;
2301 dctcp->ab_ecn = dinfo->dctcp_ab_ecn;
2302 dctcp->ab_tot = dinfo->dctcp_ab_tot;
2303 s.dctcp = dctcp;
907e1aca
DB		 2304 }
2305
2f0f9aef
NC		 2306 if (tb[INET_DIAG_BBRINFO]) {
2307 const void *bbr_info = RTA_DATA(tb[INET_DIAG_BBRINFO]);
2308 int len = min(RTA_PAYLOAD(tb[INET_DIAG_BBRINFO]),
2309 sizeof(*s.bbr_info));
2310
2311 s.bbr_info = calloc(1, sizeof(*s.bbr_info));
2312 if (s.bbr_info && bbr_info)
2313 memcpy(s.bbr_info, bbr_info, len);
2314 }
2315
b4b0b7d5 2316 if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
8250bc9f
VK		 2317 s.send_bps = (double) info->tcpi_snd_cwnd *
2318 (double)info->tcpi_snd_mss * 8000000. / rtt;
7d105b56 2319 }
b4b0b7d5 2320
eb6028b2 2321 if (info->tcpi_pacing_rate &&
8250bc9f
VK		 2322 info->tcpi_pacing_rate != ~0ULL) {
2323 s.pacing_rate = info->tcpi_pacing_rate * 8.;
eb6028b2
ED		 2324
2325 if (info->tcpi_max_pacing_rate &&
8250bc9f
VK		 2326 info->tcpi_max_pacing_rate != ~0ULL)
2327 s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.;
eb6028b2 2328 }
1a4dda71
ED		 2329 s.bytes_acked = info->tcpi_bytes_acked;
2330 s.bytes_received = info->tcpi_bytes_received;
ecb435ea
CG		 2331 s.segs_out = info->tcpi_segs_out;
2332 s.segs_in = info->tcpi_segs_in;
414aeec9
MKL		 2333 s.data_segs_out = info->tcpi_data_segs_out;
2334 s.data_segs_in = info->tcpi_data_segs_in;
9e99e495 2335 s.not_sent = info->tcpi_notsent_bytes;
d9ba887e
ED		 2336 if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U)
2337 s.min_rtt = (double) info->tcpi_min_rtt / 1000;
2f579872
NC		 2338 s.delivery_rate = info->tcpi_delivery_rate * 8.;
2339 s.app_limited = info->tcpi_delivery_rate_app_limited;
b6c7fc61
YC		 2340 s.busy_time = info->tcpi_busy_time;
2341 s.rwnd_limited = info->tcpi_rwnd_limited;
2342 s.sndbuf_limited = info->tcpi_sndbuf_limited;
8250bc9f 2343 tcp_stats_print(&s);
92de1c2c 2344 free(s.dctcp);
2f0f9aef 2345 free(s.bbr_info);
77a8ca81 2346 }
77a8ca81
PE		 2347}
2348
f89d46ad
PS		 2349static const char *format_host_sa(struct sockaddr_storage *sa)
2350{
2351 union {
2352 struct sockaddr_in sin;
2353 struct sockaddr_in6 sin6;
2354 } *saddr = (void *)sa;
2355
2356 switch (sa->ss_family) {
2357 case AF_INET:
2358 return format_host(AF_INET, 4, &saddr->sin.sin_addr);
2359 case AF_INET6:
2360 return format_host(AF_INET6, 16, &saddr->sin6.sin6_addr);
2361 default:
2362 return "";
2363 }
2364}
2365
2366static void sctp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2367 struct rtattr *tb[])
2368{
2369 struct sockaddr_storage *sa;
2370 int len;
2371
2372 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
2373
2374 if (tb[INET_DIAG_LOCALS]) {
2375 len = RTA_PAYLOAD(tb[INET_DIAG_LOCALS]);
2376 sa = RTA_DATA(tb[INET_DIAG_LOCALS]);
2377
2378 printf("locals:%s", format_host_sa(sa));
2379 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2380 printf(",%s", format_host_sa(sa));
2381
2382 }
2383 if (tb[INET_DIAG_PEERS]) {
2384 len = RTA_PAYLOAD(tb[INET_DIAG_PEERS]);
2385 sa = RTA_DATA(tb[INET_DIAG_PEERS]);
2386
2387 printf(" peers:%s", format_host_sa(sa));
2388 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2389 printf(",%s", format_host_sa(sa));
2390 }
2391 if (tb[INET_DIAG_INFO]) {
2392 struct sctp_info *info;
2393 len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
2394
2395 /* workaround for older kernels with less fields */
2396 if (len < sizeof(*info)) {
2397 info = alloca(sizeof(*info));
2398 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
2399 memset((char *)info + len, 0, sizeof(*info) - len);
2400 } else
2401 info = RTA_DATA(tb[INET_DIAG_INFO]);
2402
2403 sctp_stats_print(info);
2404 }
2405}
2406
82d73ea0 2407static void parse_diag_msg(struct nlmsghdr *nlh, struct sockstat *s)
aba5acdf 2408{
acd1e437 2409 struct rtattr *tb[INET_DIAG_MAX+1];
351efcde 2410 struct inet_diag_msg *r = NLMSG_DATA(nlh);
aba5acdf 2411
acd1e437 2412 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
5b816047
PE		 2413 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
2414
82d73ea0
DA		 2415 s->state = r->idiag_state;
2416 s->local.family = s->remote.family = r->idiag_family;
2417 s->lport = ntohs(r->id.idiag_sport);
2418 s->rport = ntohs(r->id.idiag_dport);
2419 s->wq = r->idiag_wqueue;
2420 s->rq = r->idiag_rqueue;
2421 s->ino = r->idiag_inode;
2422 s->uid = r->idiag_uid;
2423 s->iface = r->id.idiag_if;
2424 s->sk = cookie_sk_get(&r->id.idiag_cookie[0]);
2425
ec75249b
LC		 2426 s->mark = 0;
2427 if (tb[INET_DIAG_MARK])
2428 s->mark = *(__u32 *) RTA_DATA(tb[INET_DIAG_MARK]);
41fe6c34
CG		 2429 if (tb[INET_DIAG_PROTOCOL])
2430 s->raw_prot = *(__u8 *)RTA_DATA(tb[INET_DIAG_PROTOCOL]);
2431 else
2432 s->raw_prot = 0;
ec75249b 2433
82d73ea0
DA		 2434 if (s->local.family == AF_INET)
2435 s->local.bytelen = s->remote.bytelen = 4;
2436 else
2437 s->local.bytelen = s->remote.bytelen = 16;
8250bc9f 2438
82d73ea0
DA		 2439 memcpy(s->local.data, r->id.idiag_src, s->local.bytelen);
2440 memcpy(s->remote.data, r->id.idiag_dst, s->local.bytelen);
2441}
aba5acdf 2442
82d73ea0 2443static int inet_show_sock(struct nlmsghdr *nlh,
be7e4d20 2444 struct sockstat *s)
82d73ea0
DA		 2445{
2446 struct rtattr *tb[INET_DIAG_MAX+1];
2447 struct inet_diag_msg *r = NLMSG_DATA(nlh);
2448
2449 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
2450 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
aba5acdf 2451
6885e3bf 2452 if (tb[INET_DIAG_PROTOCOL])
be7e4d20 2453 s->type = *(__u8 *)RTA_DATA(tb[INET_DIAG_PROTOCOL]);
6885e3bf 2454
be7e4d20 2455 inet_stats_print(s);
116ac927 2456
055840f2
VK		 2457 if (show_options) {
2458 struct tcpstat t = {};
2459
2460 t.timer = r->idiag_timer;
2461 t.timeout = r->idiag_expires;
2462 t.retrans = r->idiag_retrans;
be7e4d20 2463 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2464 sctp_timer_print(&t);
2465 else
2466 tcp_timer_print(&t);
055840f2
VK		 2467 }
2468
aba5acdf 2469 if (show_details) {
82d73ea0
DA		 2470 sock_details_print(s);
2471 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY]) {
f32dc746 2472 unsigned char v6only;
acd1e437 2473
f32dc746
PS		 2474 v6only = *(__u8 *)RTA_DATA(tb[INET_DIAG_SKV6ONLY]);
2475 printf(" v6only:%u", v6only);
2476 }
5b816047
PE		 2477 if (tb[INET_DIAG_SHUTDOWN]) {
2478 unsigned char mask;
acd1e437 2479
5b816047
PE		 2480 mask = *(__u8 *)RTA_DATA(tb[INET_DIAG_SHUTDOWN]);
2481 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
2482 }
aba5acdf 2483 }
8250bc9f 2484
be7e4d20 2485 if (show_mem || (show_tcpinfo && s->type != IPPROTO_UDP)) {
7d105b56 2486 printf("\n\t");
be7e4d20 2487 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2488 sctp_show_info(nlh, r, tb);
2489 else
2490 tcp_show_info(nlh, r, tb);
aba5acdf 2491 }
f89d46ad 2492 sctp_ino = s->ino;
7d105b56 2493
aba5acdf 2494 printf("\n");
aba5acdf 2495 return 0;
aba5acdf
SH		 2496}
2497
746a695f 2498static int tcpdiag_send(int fd, int protocol, struct filter *f)
aba5acdf 2499{
d17b136f 2500 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
aba5acdf
SH		 2501 struct {
2502 struct nlmsghdr nlh;
351efcde 2503 struct inet_diag_req r;
d17b136f
PS		 2504 } req = {
2505 .nlh.nlmsg_len = sizeof(req),
2506 .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
2507 .nlh.nlmsg_seq = MAGIC_SEQ,
2508 .r.idiag_family = AF_INET,
2509 .r.idiag_states = f->states,
2510 };
aba5acdf
SH		 2511 char *bc = NULL;
2512 int bclen;
2513 struct msghdr msg;
2514 struct rtattr rta;
aba5acdf 2515 struct iovec iov[3];
376fb868 2516 int iovlen = 1;
aba5acdf 2517
346f8ca8
PE		 2518 if (protocol == IPPROTO_UDP)
2519 return -1;
2520
3fe5b534
PE		 2521 if (protocol == IPPROTO_TCP)
2522 req.nlh.nlmsg_type = TCPDIAG_GETSOCK;
2523 else
2524 req.nlh.nlmsg_type = DCCPDIAG_GETSOCK;
910b0397 2525 if (show_mem) {
ae665a52 2526 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
910b0397
SW		 2527 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2528 }
b4b0b7d5 2529
7d105b56 2530 if (show_tcpinfo) {
351efcde
SH		 2531 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2532 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2533 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
7d105b56 2534 }
aba5acdf 2535
ae665a52
SH		 2536 iov[0] = (struct iovec){
2537 .iov_base = &req,
2538 .iov_len = sizeof(req)
ea8fc104 2539 };
aba5acdf
SH		 2540 if (f->f) {
2541 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2542 if (bclen) {
2543 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2544 rta.rta_len = RTA_LENGTH(bclen);
2545 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2546 iov[2] = (struct iovec){ bc, bclen };
2547 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2548 iovlen = 3;
2549 }
aba5acdf
SH		 2550 }
2551
2552 msg = (struct msghdr) {
acd1e437 2553 .msg_name = (void *)&nladdr,
ea8fc104 2554 .msg_namelen = sizeof(nladdr),
ae665a52 2555 .msg_iov = iov,
376fb868 2556 .msg_iovlen = iovlen,
aba5acdf
SH		 2557 };
2558
930a75f9
ED		 2559 if (sendmsg(fd, &msg, 0) < 0) {
2560 close(fd);
aba5acdf 2561 return -1;
930a75f9 2562 }
aba5acdf 2563
746a695f
PE		 2564 return 0;
2565}
2566
886d19d6
PE		 2567static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
2568{
d17b136f 2569 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
5fb421d4 2570 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
886d19d6
PE		 2571 char *bc = NULL;
2572 int bclen;
2573 struct msghdr msg;
2574 struct rtattr rta;
2575 struct iovec iov[3];
376fb868 2576 int iovlen = 1;
886d19d6
PE		 2577
2578 if (family == PF_UNSPEC)
2579 return tcpdiag_send(fd, protocol, f);
2580
886d19d6
PE		 2581 memset(&req.r, 0, sizeof(req.r));
2582 req.r.sdiag_family = family;
2583 req.r.sdiag_protocol = protocol;
2584 req.r.idiag_states = f->states;
2585 if (show_mem) {
2586 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
2587 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2588 }
2589
2590 if (show_tcpinfo) {
2591 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2592 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2593 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
2594 }
2595
2596 iov[0] = (struct iovec){
2597 .iov_base = &req,
2598 .iov_len = sizeof(req)
2599 };
2600 if (f->f) {
2601 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2602 if (bclen) {
2603 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2604 rta.rta_len = RTA_LENGTH(bclen);
2605 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2606 iov[2] = (struct iovec){ bc, bclen };
2607 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2608 iovlen = 3;
2609 }
886d19d6
PE		 2610 }
2611
2612 msg = (struct msghdr) {
acd1e437 2613 .msg_name = (void *)&nladdr,
886d19d6
PE		 2614 .msg_namelen = sizeof(nladdr),
2615 .msg_iov = iov,
376fb868 2616 .msg_iovlen = iovlen,
886d19d6
PE		 2617 };
2618
2619 if (sendmsg(fd, &msg, 0) < 0) {
2620 close(fd);
2621 return -1;
2622 }
2623
2624 return 0;
2625}
2626
486ccd99
VK		 2627struct inet_diag_arg {
2628 struct filter *f;
2629 int protocol;
fb2594c1 2630 struct rtnl_handle *rth;
486ccd99 2631};
aba5acdf 2632
41fe6c34 2633static int kill_inet_sock(struct nlmsghdr *h, void *arg, struct sockstat *s)
fb2594c1
LC		 2634{
2635 struct inet_diag_msg *d = NLMSG_DATA(h);
2636 struct inet_diag_arg *diag_arg = arg;
2637 struct rtnl_handle *rth = diag_arg->rth;
acd1e437 2638
fb2594c1
LC		 2639 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
2640
2641 req.nlh.nlmsg_type = SOCK_DESTROY;
2642 req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
2643 req.nlh.nlmsg_seq = ++rth->seq;
2644 req.r.sdiag_family = d->idiag_family;
2645 req.r.sdiag_protocol = diag_arg->protocol;
2646 req.r.id = d->id;
2647
41fe6c34
CG		 2648 if (diag_arg->protocol == IPPROTO_RAW) {
2649 struct inet_diag_req_raw *raw = (void *)&req.r;
2650
2651 BUILD_BUG_ON(sizeof(req.r) != sizeof(*raw));
2652 raw->sdiag_raw_protocol = s->raw_prot;
2653 }
2654
fb2594c1
LC		 2655 return rtnl_talk(rth, &req.nlh, NULL, 0);
2656}
2657
486ccd99
VK		 2658static int show_one_inet_sock(const struct sockaddr_nl *addr,
2659 struct nlmsghdr *h, void *arg)
2660{
2661 int err;
2662 struct inet_diag_arg *diag_arg = arg;
2663 struct inet_diag_msg *r = NLMSG_DATA(h);
82d73ea0 2664 struct sockstat s = {};
aba5acdf 2665
486ccd99
VK		 2666 if (!(diag_arg->f->families & (1 << r->idiag_family)))
2667 return 0;
82d73ea0
DA		 2668
2669 parse_diag_msg(h, &s);
be7e4d20 2670 s.type = diag_arg->protocol;
82d73ea0
DA		 2671
2672 if (diag_arg->f->f && run_ssfilter(diag_arg->f->f, &s) == 0)
2673 return 0;
2674
41fe6c34 2675 if (diag_arg->f->kill && kill_inet_sock(h, arg, &s) != 0) {
fb2594c1
LC		 2676 if (errno == EOPNOTSUPP || errno == ENOENT) {
2677 /* Socket can't be closed, or is already closed. */
2678 return 0;
2679 } else {
2680 perror("SOCK_DESTROY answers");
2681 return -1;
2682 }
2683 }
82d73ea0 2684
be7e4d20 2685 err = inet_show_sock(h, &s);
82d73ea0 2686 if (err < 0)
486ccd99 2687 return err;
aba5acdf 2688
486ccd99
VK		 2689 return 0;
2690}
886d19d6 2691
486ccd99
VK		 2692static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol)
2693{
2694 int err = 0;
fb2594c1 2695 struct rtnl_handle rth, rth2;
486ccd99
VK		 2696 int family = PF_INET;
2697 struct inet_diag_arg arg = { .f = f, .protocol = protocol };
886d19d6 2698
486ccd99
VK		 2699 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
2700 return -1;
fb2594c1
LC		 2701
2702 if (f->kill) {
2703 if (rtnl_open_byproto(&rth2, 0, NETLINK_SOCK_DIAG)) {
2704 rtnl_close(&rth);
2705 return -1;
2706 }
2707 arg.rth = &rth2;
2708 }
2709
486ccd99
VK		 2710 rth.dump = MAGIC_SEQ;
2711 rth.dump_fp = dump_fp;
518af1e0
ED		 2712 if (preferred_family == PF_INET6)
2713 family = PF_INET6;
886d19d6 2714
486ccd99
VK		 2715again:
2716 if ((err = sockdiag_send(family, rth.fd, protocol, f)))
2717 goto Exit;
aba5acdf 2718
486ccd99
VK		 2719 if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) {
2720 if (family != PF_UNSPEC) {
2721 family = PF_UNSPEC;
2722 goto again;
aba5acdf 2723 }
486ccd99 2724 goto Exit;
aba5acdf 2725 }
518af1e0 2726 if (family == PF_INET && preferred_family != PF_INET) {
886d19d6
PE		 2727 family = PF_INET6;
2728 goto again;
2729 }
2730
486ccd99
VK		 2731Exit:
2732 rtnl_close(&rth);
fb2594c1
LC		 2733 if (arg.rth)
2734 rtnl_close(arg.rth);
486ccd99 2735 return err;
aba5acdf
SH		 2736}
2737
ab01dbbb 2738static int tcp_show_netlink_file(struct filter *f)
aba5acdf
SH		 2739{
2740 FILE *fp;
e557212e 2741 char buf[16384];
aba5acdf
SH		 2742
2743 if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) {
2744 perror("fopen($TCPDIAG_FILE)");
2745 return -1;
2746 }
2747
2748 while (1) {
2749 int status, err;
acd1e437 2750 struct nlmsghdr *h = (struct nlmsghdr *)buf;
82d73ea0 2751 struct sockstat s = {};
aba5acdf
SH		 2752
2753 status = fread(buf, 1, sizeof(*h), fp);
2754 if (status < 0) {
2755 perror("Reading header from $TCPDIAG_FILE");
2756 return -1;
2757 }
2758 if (status != sizeof(*h)) {
2759 perror("Unexpected EOF reading $TCPDIAG_FILE");
2760 return -1;
2761 }
2762
2763 status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp);
2764
2765 if (status < 0) {
2766 perror("Reading $TCPDIAG_FILE");
2767 return -1;
2768 }
2769 if (status + sizeof(*h) < h->nlmsg_len) {
2770 perror("Unexpected EOF reading $TCPDIAG_FILE");
2771 return -1;
2772 }
2773
2774 /* The only legal exit point */
2775 if (h->nlmsg_type == NLMSG_DONE)
2776 return 0;
2777
2778 if (h->nlmsg_type == NLMSG_ERROR) {
acd1e437
SH		 2779 struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h);
2780
aba5acdf
SH		 2781 if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
2782 fprintf(stderr, "ERROR truncated\n");
2783 } else {
2784 errno = -err->error;
2785 perror("TCPDIAG answered");
2786 }
2787 return -1;
2788 }
2789
82d73ea0 2790 parse_diag_msg(h, &s);
be7e4d20 2791 s.type = IPPROTO_TCP;
82d73ea0
DA		 2792
2793 if (f && f->f && run_ssfilter(f->f, &s) == 0)
2794 continue;
2795
be7e4d20 2796 err = inet_show_sock(h, &s);
aba5acdf
SH		 2797 if (err < 0)
2798 return err;
2799 }
2800}
2801
ab01dbbb 2802static int tcp_show(struct filter *f, int socktype)
aba5acdf 2803{
ab01dbbb 2804 FILE *fp = NULL;
aba5acdf
SH		 2805 char *buf = NULL;
2806 int bufsize = 64*1024;
2807
1527a17e
VK		 2808 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2809 return 0;
2810
aba5acdf
SH		 2811 dg_proto = TCP_PROTO;
2812
2813 if (getenv("TCPDIAG_FILE"))
2814 return tcp_show_netlink_file(f);
2815
2816 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
3fe5b534 2817 && inet_show_netlink(f, NULL, socktype) == 0)
aba5acdf
SH		 2818 return 0;
2819
2820 /* Sigh... We have to parse /proc/net/tcp... */
2821
ab01dbbb 2822
aba5acdf
SH		 2823 /* Estimate amount of sockets and try to allocate
2824 * huge buffer to read all the table at one read.
2825 * Limit it by 16MB though. The assumption is: as soon as
2826 * kernel was able to hold information about N connections,
2827 * it is able to give us some memory for snapshot.
2828 */
2829 if (1) {
a221d621
BL		 2830 get_slabstat(&slabstat);
2831
aba5acdf 2832 int guess = slabstat.socks+slabstat.tcp_syns;
acd1e437 2833
aba5acdf
SH		 2834 if (f->states&(1<<SS_TIME_WAIT))
2835 guess += slabstat.tcp_tws;
2836 if (guess > (16*1024*1024)/128)
2837 guess = (16*1024*1024)/128;
2838 guess *= 128;
2839 if (guess > bufsize)
2840 bufsize = guess;
2841 }
2842 while (bufsize >= 64*1024) {
2843 if ((buf = malloc(bufsize)) != NULL)
2844 break;
2845 bufsize /= 2;
2846 }
2847 if (buf == NULL) {
2848 errno = ENOMEM;
2849 return -1;
2850 }
2851
2852 if (f->families & (1<<AF_INET)) {
69cae645 2853 if ((fp = net_tcp_open()) == NULL)
aba5acdf 2854 goto outerr;
ab01dbbb
SH		 2855
2856 setbuffer(fp, buf, bufsize);
2857 if (generic_record_read(fp, tcp_show_line, f, AF_INET))
aba5acdf 2858 goto outerr;
ab01dbbb 2859 fclose(fp);
aba5acdf
SH		 2860 }
2861
2862 if ((f->families & (1<<AF_INET6)) &&
69cae645 2863 (fp = net_tcp6_open()) != NULL) {
ab01dbbb
SH		 2864 setbuffer(fp, buf, bufsize);
2865 if (generic_record_read(fp, tcp_show_line, f, AF_INET6))
aba5acdf 2866 goto outerr;
ab01dbbb 2867 fclose(fp);
aba5acdf
SH		 2868 }
2869
2870 free(buf);
2871 return 0;
2872
2873outerr:
2874 do {
2875 int saved_errno = errno;
acd1e437 2876
92de1c2c 2877 free(buf);
ab01dbbb
SH		 2878 if (fp)
2879 fclose(fp);
aba5acdf
SH		 2880 errno = saved_errno;
2881 return -1;
2882 } while (0);
2883}
2884
f89d46ad
PS		 2885static int sctp_show(struct filter *f)
2886{
2887 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2888 return 0;
2889
2890 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
2891 && inet_show_netlink(f, NULL, IPPROTO_SCTP) == 0)
2892 return 0;
2893
2894 return 0;
2895}
aba5acdf 2896
d1f28cf1 2897static int dgram_show_line(char *line, const struct filter *f, int family)
aba5acdf 2898{
055840f2 2899 struct sockstat s = {};
aba5acdf
SH		 2900 char *loc, *rem, *data;
2901 char opt[256];
2902 int n;
aba5acdf 2903
8250bc9f 2904 if (proc_inet_split_line(line, &loc, &rem, &data))
aba5acdf 2905 return -1;
aba5acdf 2906
8250bc9f 2907 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2908
8250bc9f
VK		 2909 if (!(f->states & (1 << state)))
2910 return 0;
aba5acdf 2911
8250bc9f 2912 proc_parse_inet_addr(loc, rem, family, &s);
aba5acdf
SH		 2913
2914 if (f->f && run_ssfilter(f->f, &s) == 0)
2915 return 0;
2916
2917 opt[0] = 0;
e7113c61 2918 n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
aba5acdf
SH		 2919 &s.state, &s.wq, &s.rq,
2920 &s.uid, &s.ino,
2921 &s.refcnt, &s.sk, opt);
2922
2923 if (n < 9)
2924 opt[0] = 0;
2925
be7e4d20
PS		 2926 s.type = dg_proto == UDP_PROTO ? IPPROTO_UDP : 0;
2927 inet_stats_print(&s);
aba5acdf 2928
f1b39e1b
VK		 2929 if (show_details && opt[0])
2930 printf(" opt:\"%s\"", opt);
aba5acdf 2931
8250bc9f 2932 printf("\n");
aba5acdf
SH		 2933 return 0;
2934}
2935
d1f28cf1 2936static int udp_show(struct filter *f)
aba5acdf 2937{
ab01dbbb 2938 FILE *fp = NULL;
aba5acdf 2939
1527a17e
VK		 2940 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2941 return 0;
2942
ace5cb31
VK		 2943 dg_proto = UDP_PROTO;
2944
346f8ca8
PE		 2945 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
2946 && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0)
2947 return 0;
2948
aba5acdf 2949 if (f->families&(1<<AF_INET)) {
69cae645 2950 if ((fp = net_udp_open()) == NULL)
aba5acdf 2951 goto outerr;
ab01dbbb 2952 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2953 goto outerr;
ab01dbbb 2954 fclose(fp);
aba5acdf
SH		 2955 }
2956
2957 if ((f->families&(1<<AF_INET6)) &&
69cae645 2958 (fp = net_udp6_open()) != NULL) {
ab01dbbb 2959 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2960 goto outerr;
ab01dbbb 2961 fclose(fp);
aba5acdf
SH		 2962 }
2963 return 0;
2964
2965outerr:
2966 do {
2967 int saved_errno = errno;
acd1e437 2968
ab01dbbb
SH		 2969 if (fp)
2970 fclose(fp);
aba5acdf
SH		 2971 errno = saved_errno;
2972 return -1;
2973 } while (0);
2974}
2975
d1f28cf1 2976static int raw_show(struct filter *f)
aba5acdf 2977{
ab01dbbb 2978 FILE *fp = NULL;
aba5acdf 2979
1527a17e
VK		 2980 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2981 return 0;
2982
aba5acdf
SH		 2983 dg_proto = RAW_PROTO;
2984
41fe6c34
CG		 2985 if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") &&
2986 inet_show_netlink(f, NULL, IPPROTO_RAW) == 0)
2987 return 0;
2988
aba5acdf 2989 if (f->families&(1<<AF_INET)) {
69cae645 2990 if ((fp = net_raw_open()) == NULL)
aba5acdf 2991 goto outerr;
ab01dbbb 2992 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2993 goto outerr;
ab01dbbb 2994 fclose(fp);
aba5acdf
SH		 2995 }
2996
2997 if ((f->families&(1<<AF_INET6)) &&
69cae645 2998 (fp = net_raw6_open()) != NULL) {
ab01dbbb 2999 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 3000 goto outerr;
ab01dbbb 3001 fclose(fp);
aba5acdf
SH		 3002 }
3003 return 0;
3004
3005outerr:
3006 do {
3007 int saved_errno = errno;
acd1e437 3008
ab01dbbb
SH		 3009 if (fp)
3010 fclose(fp);
aba5acdf
SH		 3011 errno = saved_errno;
3012 return -1;
3013 } while (0);
3014}
3015
aba5acdf
SH		 3016int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT,
3017 SS_ESTABLISHED, SS_CLOSING };
3018
ec4d0d8a 3019#define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
aba5acdf 3020
ec4d0d8a 3021static void unix_list_free(struct sockstat *list)
aba5acdf
SH		 3022{
3023 while (list) {
ec4d0d8a 3024 struct sockstat *s = list;
ec4d0d8a 3025
aba5acdf 3026 list = list->next;
99bb68ff 3027 free(s->name);
aba5acdf
SH		 3028 free(s);
3029 }
3030}
3031
ec4d0d8a 3032static bool unix_type_skip(struct sockstat *s, struct filter *f)
bf4ceee6
VK		 3033{
3034 if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
3035 return true;
3036 if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
3037 return true;
3038 if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
3039 return true;
3040 return false;
3041}
3042
ec4d0d8a
VK		 3043static bool unix_use_proc(void)
3044{
3045 return getenv("PROC_NET_UNIX") || getenv("PROC_ROOT");
3046}
3047
3048static void unix_stats_print(struct sockstat *list, struct filter *f)
aba5acdf 3049{
ec4d0d8a 3050 struct sockstat *s;
99bb68ff 3051 char *peer;
ec4d0d8a 3052 bool use_proc = unix_use_proc();
b217df10 3053 char port_name[30] = {};
aba5acdf
SH		 3054
3055 for (s = list; s; s = s->next) {
ec4d0d8a 3056 if (!(f->states & (1 << s->state)))
aba5acdf 3057 continue;
bf4ceee6 3058 if (unix_type_skip(s, f))
30b669d7 3059 continue;
aba5acdf 3060
99bb68ff
VK		 3061 peer = "*";
3062 if (s->peer_name)
3063 peer = s->peer_name;
ec4d0d8a
VK		 3064
3065 if (s->rport && use_proc) {
3066 struct sockstat *p;
bf4ceee6 3067
aba5acdf 3068 for (p = list; p; p = p->next) {
ec4d0d8a 3069 if (s->rport == p->lport)
aba5acdf
SH		 3070 break;
3071 }
ec4d0d8a 3072
aba5acdf
SH		 3073 if (!p) {
3074 peer = "?";
3075 } else {
99bb68ff 3076 peer = p->name ? : "*";
aba5acdf
SH		 3077 }
3078 }
3079
29999b0f 3080 if (use_proc && f->f) {
d17b136f
PS		 3081 struct sockstat st = {
3082 .local.family = AF_UNIX,
3083 .remote.family = AF_UNIX,
3084 };
acd1e437 3085
99bb68ff 3086 memcpy(st.local.data, &s->name, sizeof(s->name));
d17b136f 3087 if (strcmp(peer, "*"))
99bb68ff
VK		 3088 memcpy(st.remote.data, &peer, sizeof(peer));
3089 if (run_ssfilter(f->f, &st) == 0)
aba5acdf
SH		 3090 continue;
3091 }
3092
be7e4d20 3093 sock_state_print(s);
2d791bc8 3094
99bb68ff 3095 sock_addr_print(s->name ?: "*", " ",
b217df10
VK		 3096 int_to_str(s->lport, port_name), NULL);
3097 sock_addr_print(peer, " ", int_to_str(s->rport, port_name),
3098 NULL);
116ac927 3099
5f27ac1d 3100 proc_ctx_print(s);
aba5acdf
SH		 3101 printf("\n");
3102 }
3103}
3104
8a4025f6 3105static int unix_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh,
3106 void *arg)
dfbaa90d 3107{
8a4025f6 3108 struct filter *f = (struct filter *)arg;
dfbaa90d
PE		 3109 struct unix_diag_msg *r = NLMSG_DATA(nlh);
3110 struct rtattr *tb[UNIX_DIAG_MAX+1];
99bb68ff
VK		 3111 char name[128];
3112 struct sockstat stat = { .name = "*", .peer_name = "*" };
dfbaa90d 3113
acd1e437 3114 parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr *)(r+1),
dfbaa90d
PE		 3115 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3116
bf4ceee6
VK		 3117 stat.type = r->udiag_type;
3118 stat.state = r->udiag_state;
ec4d0d8a
VK		 3119 stat.ino = stat.lport = r->udiag_ino;
3120 stat.local.family = stat.remote.family = AF_UNIX;
0d2e01c5 3121
bf4ceee6
VK		 3122 if (unix_type_skip(&stat, f))
3123 return 0;
dfbaa90d 3124
defd61ca
HFS		 3125 if (tb[UNIX_DIAG_RQLEN]) {
3126 struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]);
acd1e437 3127
bf4ceee6
VK		 3128 stat.rq = rql->udiag_rqueue;
3129 stat.wq = rql->udiag_wqueue;
defd61ca 3130 }
dfbaa90d
PE		 3131 if (tb[UNIX_DIAG_NAME]) {
3132 int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
3133
3134 memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
3135 name[len] = '\0';
3136 if (name[0] == '\0')
878dadc7
IB		 3137 for (int i = 0; i < len; i++)
3138 if (name[i] == '\0')
3139 name[i] = '@';
99bb68ff
VK		 3140 stat.name = &name[0];
3141 memcpy(stat.local.data, &stat.name, sizeof(stat.name));
bf4ceee6 3142 }
dfbaa90d 3143 if (tb[UNIX_DIAG_PEER])
ec4d0d8a 3144 stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]);
dfbaa90d 3145
29999b0f
VK		 3146 if (f->f && run_ssfilter(f->f, &stat) == 0)
3147 return 0;
3148
bf4ceee6 3149 unix_stats_print(&stat, f);
dfbaa90d 3150
45199997 3151 if (show_mem || show_details)
bf4ceee6 3152 printf("\t");
45199997 3153 if (show_mem)
51ff9f24 3154 print_skmeminfo(tb, UNIX_DIAG_MEMINFO);
5b816047
PE		 3155 if (show_details) {
3156 if (tb[UNIX_DIAG_SHUTDOWN]) {
3157 unsigned char mask;
acd1e437 3158
5b816047
PE		 3159 mask = *(__u8 *)RTA_DATA(tb[UNIX_DIAG_SHUTDOWN]);
3160 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
3161 }
3162 }
bf4ceee6
VK		 3163 if (show_mem || show_details)
3164 printf("\n");
ec4d0d8a 3165
dfbaa90d
PE		 3166 return 0;
3167}
3168
8a4025f6 3169static int handle_netlink_request(struct filter *f, struct nlmsghdr *req,
3170 size_t size, rtnl_filter_t show_one_sock)
dfbaa90d 3171{
8a4025f6 3172 int ret = -1;
3173 struct rtnl_handle rth;
dfbaa90d 3174
8a4025f6 3175 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
dfbaa90d
PE		 3176 return -1;
3177
8a4025f6 3178 rth.dump = MAGIC_SEQ;
dfbaa90d 3179
8a4025f6 3180 if (rtnl_send(&rth, req, size) < 0)
3181 goto Exit;
dfbaa90d 3182
8a4025f6 3183 if (rtnl_dump_filter(&rth, show_one_sock, f))
3184 goto Exit;
dfbaa90d 3185
8a4025f6 3186 ret = 0;
3187Exit:
3188 rtnl_close(&rth);
3189 return ret;
dfbaa90d
PE		 3190}
3191
8a4025f6 3192static int unix_show_netlink(struct filter *f)
d8402b96 3193{
5fb421d4 3194 DIAG_REQUEST(req, struct unix_diag_req r);
d8402b96
AV		 3195
3196 req.r.sdiag_family = AF_UNIX;
3197 req.r.udiag_states = f->states;
3198 req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
3199 if (show_mem)
3200 req.r.udiag_show |= UDIAG_SHOW_MEMINFO;
3201
8a4025f6 3202 return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock);
d8402b96
AV		 3203}
3204
d1f28cf1 3205static int unix_show(struct filter *f)
aba5acdf
SH		 3206{
3207 FILE *fp;
3208 char buf[256];
3209 char name[128];
3210 int newformat = 0;
3211 int cnt;
ec4d0d8a 3212 struct sockstat *list = NULL;
aba5acdf 3213
9db7bf15
VK		 3214 if (!filter_af_get(f, AF_UNIX))
3215 return 0;
3216
ec4d0d8a 3217 if (!unix_use_proc() && unix_show_netlink(f) == 0)
dfbaa90d
PE		 3218 return 0;
3219
ab01dbbb 3220 if ((fp = net_unix_open()) == NULL)
aba5acdf 3221 return -1;
61170fd8 3222 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3223 fclose(fp);
3224 return -1;
3225 }
aba5acdf 3226
ae665a52 3227 if (memcmp(buf, "Peer", 4) == 0)
aba5acdf
SH		 3228 newformat = 1;
3229 cnt = 0;
3230
61170fd8 3231 while (fgets(buf, sizeof(buf), fp)) {
ec4d0d8a 3232 struct sockstat *u, **insp;
aba5acdf
SH		 3233 int flags;
3234
0ee9052f 3235 if (!(u = calloc(1, sizeof(*u))))
aba5acdf 3236 break;
99bb68ff
VK		 3237 u->name = NULL;
3238 u->peer_name = NULL;
aba5acdf
SH		 3239
3240 if (sscanf(buf, "%x: %x %x %x %x %x %d %s",
ec4d0d8a 3241 &u->rport, &u->rq, &u->wq, &flags, &u->type,
aba5acdf
SH		 3242 &u->state, &u->ino, name) < 8)
3243 name[0] = 0;
3244
ec4d0d8a
VK		 3245 u->lport = u->ino;
3246 u->local.family = u->remote.family = AF_UNIX;
3247
3248 if (flags & (1 << 16)) {
aba5acdf
SH		 3249 u->state = SS_LISTEN;
3250 } else {
3251 u->state = unix_state_map[u->state-1];
ec4d0d8a 3252 if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport)
aba5acdf
SH		 3253 u->state = SS_ESTABLISHED;
3254 }
3255
3256 if (!newformat) {
ec4d0d8a 3257 u->rport = 0;
aba5acdf
SH		 3258 u->rq = 0;
3259 u->wq = 0;
3260 }
3261
3262 insp = &list;
3263 while (*insp) {
3264 if (u->type < (*insp)->type ||
3265 (u->type == (*insp)->type &&
3266 u->ino < (*insp)->ino))
3267 break;
3268 insp = &(*insp)->next;
3269 }
3270 u->next = *insp;
3271 *insp = u;
3272
3273 if (name[0]) {
99bb68ff
VK		 3274 if ((u->name = malloc(strlen(name)+1)) == NULL)
3275 break;
3276 strcpy(u->name, name);
aba5acdf
SH		 3277 }
3278 if (++cnt > MAX_UNIX_REMEMBER) {
bf4ceee6 3279 unix_stats_print(list, f);
aba5acdf
SH		 3280 unix_list_free(list);
3281 list = NULL;
3282 cnt = 0;
3283 }
3284 }
a3fd8e58 3285 fclose(fp);
aba5acdf 3286 if (list) {
bf4ceee6 3287 unix_stats_print(list, f);
aba5acdf
SH		 3288 unix_list_free(list);
3289 list = NULL;
3290 cnt = 0;
3291 }
3292
3293 return 0;
3294}
3295
89f634f9 3296static int packet_stats_print(struct sockstat *s, const struct filter *f)
4a0053b6 3297{
b217df10
VK		 3298 const char *addr, *port;
3299 char ll_name[16];
372c30d2 3300
be7e4d20
PS		 3301 s->local.family = s->remote.family = AF_PACKET;
3302
4a0053b6 3303 if (f->f) {
89f634f9 3304 s->local.data[0] = s->prot;
89f634f9 3305 if (run_ssfilter(f->f, s) == 0)
4a0053b6
VK		 3306 return 1;
3307 }
372c30d2 3308
be7e4d20 3309 sock_state_print(s);
372c30d2 3310
b217df10
VK		 3311 if (s->prot == 3)
3312 addr = "*";
3313 else
3314 addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name));
3315
3316 if (s->iface == 0)
3317 port = "*";
3318 else
3319 port = xll_index_to_name(s->iface);
372c30d2 3320
b217df10
VK		 3321 sock_addr_print(addr, ":", port, NULL);
3322 sock_addr_print("", "*", "", NULL);
116ac927 3323
5f27ac1d 3324 proc_ctx_print(s);
116ac927 3325
f1b39e1b
VK		 3326 if (show_details)
3327 sock_details_print(s);
3328
4a0053b6
VK		 3329 return 0;
3330}
3331
2631b856
VK		 3332static void packet_show_ring(struct packet_diag_ring *ring)
3333{
3334 printf("blk_size:%d", ring->pdr_block_size);
3335 printf(",blk_nr:%d", ring->pdr_block_nr);
3336 printf(",frm_size:%d", ring->pdr_frame_size);
3337 printf(",frm_nr:%d", ring->pdr_frame_nr);
3338 printf(",tmo:%d", ring->pdr_retire_tmo);
3339 printf(",features:0x%x", ring->pdr_features);
3340}
3341
4a0053b6
VK		 3342static int packet_show_sock(const struct sockaddr_nl *addr,
3343 struct nlmsghdr *nlh, void *arg)
3344{
3345 const struct filter *f = arg;
3346 struct packet_diag_msg *r = NLMSG_DATA(nlh);
2631b856
VK		 3347 struct packet_diag_info *pinfo = NULL;
3348 struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL;
4a0053b6 3349 struct rtattr *tb[PACKET_DIAG_MAX+1];
89f634f9 3350 struct sockstat stat = {};
2631b856
VK		 3351 uint32_t fanout = 0;
3352 bool has_fanout = false;
4a0053b6 3353
acd1e437 3354 parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr *)(r+1),
4a0053b6
VK		 3355 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3356
3357 /* use /proc/net/packet if all info are not available */
3358 if (!tb[PACKET_DIAG_MEMINFO])
3359 return -1;
3360
2d791bc8
VK		 3361 stat.type = r->pdiag_type;
3362 stat.prot = r->pdiag_num;
3363 stat.ino = r->pdiag_ino;
3364 stat.state = SS_CLOSE;
f1b39e1b 3365 stat.sk = cookie_sk_get(&r->pdiag_cookie[0]);
4a0053b6
VK		 3366
3367 if (tb[PACKET_DIAG_MEMINFO]) {
3368 __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]);
acd1e437 3369
4a0053b6
VK		 3370 stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3371 }
3372
3373 if (tb[PACKET_DIAG_INFO]) {
2631b856 3374 pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
2d791bc8 3375 stat.lport = stat.iface = pinfo->pdi_index;
4a0053b6
VK		 3376 }
3377
f1b39e1b
VK		 3378 if (tb[PACKET_DIAG_UID])
3379 stat.uid = *(__u32 *)RTA_DATA(tb[PACKET_DIAG_UID]);
3380
2631b856
VK		 3381 if (tb[PACKET_DIAG_RX_RING])
3382 ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]);
3383
3384 if (tb[PACKET_DIAG_TX_RING])
3385 ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]);
3386
3387 if (tb[PACKET_DIAG_FANOUT]) {
3388 has_fanout = true;
3389 fanout = *(uint32_t *)RTA_DATA(tb[PACKET_DIAG_FANOUT]);
3390 }
3391
4a0053b6
VK		 3392 if (packet_stats_print(&stat, f))
3393 return 0;
3394
2631b856
VK		 3395 if (show_details) {
3396 if (pinfo) {
3397 printf("\n\tver:%d", pinfo->pdi_version);
3398 printf(" cpy_thresh:%d", pinfo->pdi_copy_thresh);
3399 printf(" flags( ");
3400 if (pinfo->pdi_flags & PDI_RUNNING)
3401 printf("running");
3402 if (pinfo->pdi_flags & PDI_AUXDATA)
3403 printf(" auxdata");
3404 if (pinfo->pdi_flags & PDI_ORIGDEV)
3405 printf(" origdev");
3406 if (pinfo->pdi_flags & PDI_VNETHDR)
3407 printf(" vnethdr");
3408 if (pinfo->pdi_flags & PDI_LOSS)
3409 printf(" loss");
3410 if (!pinfo->pdi_flags)
3411 printf("0");
3412 printf(" )");
3413 }
3414 if (ring_rx) {
3415 printf("\n\tring_rx(");
3416 packet_show_ring(ring_rx);
3417 printf(")");
3418 }
3419 if (ring_tx) {
3420 printf("\n\tring_tx(");
3421 packet_show_ring(ring_tx);
3422 printf(")");
3423 }
3424 if (has_fanout) {
3425 uint16_t type = (fanout >> 16) & 0xffff;
3426
3427 printf("\n\tfanout(");
3428 printf("id:%d,", fanout & 0xffff);
3429 printf("type:");
3430
3431 if (type == 0)
3432 printf("hash");
3433 else if (type == 1)
3434 printf("lb");
3435 else if (type == 2)
3436 printf("cpu");
3437 else if (type == 3)
3438 printf("roll");
3439 else if (type == 4)
3440 printf("random");
3441 else if (type == 5)
3442 printf("qm");
3443 else
3444 printf("0x%x", type);
3445
3446 printf(")");
3447 }
3448 }
3449
372c30d2
ND		 3450 if (show_bpf && tb[PACKET_DIAG_FILTER]) {
3451 struct sock_filter *fil =
3452 RTA_DATA(tb[PACKET_DIAG_FILTER]);
3453 int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) /
3454 sizeof(struct sock_filter);
3455
3456 printf("\n\tbpf filter (%d): ", num);
3457 while (num) {
3458 printf(" 0x%02x %u %u %u,",
3459 fil->code, fil->jt, fil->jf, fil->k);
3460 num--;
3461 fil++;
3462 }
3463 }
3464 printf("\n");
3465 return 0;
3466}
3467
8a4025f6 3468static int packet_show_netlink(struct filter *f)
372c30d2 3469{
5fb421d4 3470 DIAG_REQUEST(req, struct packet_diag_req r);
372c30d2 3471
372c30d2 3472 req.r.sdiag_family = AF_PACKET;
2631b856
VK		 3473 req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO |
3474 PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT;
372c30d2 3475
8a4025f6 3476 return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock);
372c30d2
ND		 3477}
3478
4a0053b6
VK		 3479static int packet_show_line(char *buf, const struct filter *f, int fam)
3480{
3481 unsigned long long sk;
89f634f9 3482 struct sockstat stat = {};
4a0053b6
VK		 3483 int type, prot, iface, state, rq, uid, ino;
3484
3485 sscanf(buf, "%llx %*d %d %x %d %d %u %u %u",
3486 &sk,
3487 &type, &prot, &iface, &state,
3488 &rq, &uid, &ino);
3489
3490 if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB)))
3491 return 0;
3492 if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB)))
3493 return 0;
3494
3495 stat.type = type;
3496 stat.prot = prot;
2d791bc8 3497 stat.lport = stat.iface = iface;
4a0053b6
VK		 3498 stat.state = state;
3499 stat.rq = rq;
3500 stat.uid = uid;
3501 stat.ino = ino;
2d791bc8
VK		 3502 stat.state = SS_CLOSE;
3503
4a0053b6
VK		 3504 if (packet_stats_print(&stat, f))
3505 return 0;
3506
4a0053b6
VK		 3507 printf("\n");
3508 return 0;
3509}
aba5acdf 3510
d1f28cf1 3511static int packet_show(struct filter *f)
aba5acdf
SH		 3512{
3513 FILE *fp;
b95d28c3 3514 int rc = 0;
3d0b7439 3515
9db7bf15 3516 if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE)))
b9ea445d 3517 return 0;
aba5acdf 3518
4a0053b6
VK		 3519 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
3520 packet_show_netlink(f) == 0)
372c30d2
ND		 3521 return 0;
3522
ab01dbbb 3523 if ((fp = net_packet_open()) == NULL)
aba5acdf 3524 return -1;
4a0053b6 3525 if (generic_record_read(fp, packet_show_line, f, AF_PACKET))
b95d28c3 3526 rc = -1;
aba5acdf 3527
b95d28c3
PS		 3528 fclose(fp);
3529 return rc;
aba5acdf
SH		 3530}
3531
5f24ec0e 3532static int netlink_show_one(struct filter *f,
acd1e437
SH		 3533 int prot, int pid, unsigned int groups,
3534 int state, int dst_pid, unsigned int dst_group,
129709ae
AV		 3535 int rq, int wq,
3536 unsigned long long sk, unsigned long long cb)
3537{
2d791bc8 3538 struct sockstat st;
acd1e437 3539
b217df10
VK		 3540 SPRINT_BUF(prot_buf) = {};
3541 const char *prot_name;
3542 char procname[64] = {};
eef43b50 3543
2d791bc8
VK		 3544 st.state = SS_CLOSE;
3545 st.rq = rq;
3546 st.wq = wq;
be7e4d20 3547 st.local.family = st.remote.family = AF_NETLINK;
2d791bc8 3548
129709ae 3549 if (f->f) {
055840f2
VK		 3550 st.rport = -1;
3551 st.lport = pid;
3552 st.local.data[0] = prot;
055840f2 3553 if (run_ssfilter(f->f, &st) == 0)
5f24ec0e 3554 return 1;
129709ae
AV		 3555 }
3556
be7e4d20 3557 sock_state_print(&st);
eef43b50 3558
b217df10
VK		 3559 if (resolve_services)
3560 prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf));
3561 else
3562 prot_name = int_to_str(prot, prot_buf);
eef43b50 3563
129709ae 3564 if (pid == -1) {
b217df10 3565 procname[0] = '*';
129709ae
AV		 3566 } else if (resolve_services) {
3567 int done = 0;
acd1e437 3568
129709ae
AV		 3569 if (!pid) {
3570 done = 1;
b217df10 3571 strncpy(procname, "kernel", 6);
129709ae 3572 } else if (pid > 0) {
129709ae 3573 FILE *fp;
acd1e437 3574
0ee9052f 3575 snprintf(procname, sizeof(procname), "%s/%d/stat",
129709ae
AV		 3576 getenv("PROC_ROOT") ? : "/proc", pid);
3577 if ((fp = fopen(procname, "r")) != NULL) {
3578 if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
0ee9052f 3579 snprintf(procname+strlen(procname),
3580 sizeof(procname)-strlen(procname),
3581 "/%d", pid);
129709ae
AV		 3582 done = 1;
3583 }
3584 fclose(fp);
3585 }
3586 }
3587 if (!done)
b217df10 3588 int_to_str(pid, procname);
129709ae 3589 } else {
b217df10 3590 int_to_str(pid, procname);
129709ae 3591 }
f271fe01 3592
b217df10
VK		 3593 sock_addr_print(prot_name, ":", procname, NULL);
3594
f271fe01 3595 if (state == NETLINK_CONNECTED) {
b217df10
VK		 3596 char dst_group_buf[30];
3597 char dst_pid_buf[30];
acd1e437 3598
b217df10
VK		 3599 sock_addr_print(int_to_str(dst_group, dst_group_buf), ":",
3600 int_to_str(dst_pid, dst_pid_buf), NULL);
f271fe01 3601 } else {
b217df10 3602 sock_addr_print("", "*", "", NULL);
f271fe01 3603 }
129709ae 3604
116ac927 3605 char *pid_context = NULL;
acd1e437 3606
116ac927
RH		 3607 if (show_proc_ctx) {
3608 /* The pid value will either be:
3609 * 0 if destination kernel - show kernel initial context.
3610 * A valid process pid - use getpidcon.
3611 * A unique value allocated by the kernel or netlink user
3612 * to the process - show context as "not available".
3613 */
3614 if (!pid)
3615 security_get_initial_context("kernel", &pid_context);
3616 else if (pid > 0)
3617 getpidcon(pid, &pid_context);
3618
3619 if (pid_context != NULL) {
3620 printf("proc_ctx=%-*s ", serv_width, pid_context);
3621 free(pid_context);
3622 } else {
3623 printf("proc_ctx=%-*s ", serv_width, "unavailable");
3624 }
3625 }
3626
129709ae
AV		 3627 if (show_details) {
3628 printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups);
3629 }
3630 printf("\n");
3631
5f24ec0e 3632 return 0;
129709ae
AV		 3633}
3634
8a4025f6 3635static int netlink_show_sock(const struct sockaddr_nl *addr,
3636 struct nlmsghdr *nlh, void *arg)
ecb928c8 3637{
8a4025f6 3638 struct filter *f = (struct filter *)arg;
ecb928c8
AV		 3639 struct netlink_diag_msg *r = NLMSG_DATA(nlh);
3640 struct rtattr *tb[NETLINK_DIAG_MAX+1];
3641 int rq = 0, wq = 0;
3642 unsigned long groups = 0;
3643
acd1e437 3644 parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr *)(r+1),
ecb928c8
AV		 3645 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3646
3647 if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS]))
3648 groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]);
3649
3650 if (tb[NETLINK_DIAG_MEMINFO]) {
3651 const __u32 *skmeminfo;
acd1e437 3652
ecb928c8
AV		 3653 skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]);
3654
3655 rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3656 wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC];
3657 }
3658
5f24ec0e 3659 if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups,
ecb928c8 3660 r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group,
5f24ec0e
VK		 3661 rq, wq, 0, 0)) {
3662 return 0;
3663 }
ecb928c8
AV		 3664
3665 if (show_mem) {
3666 printf("\t");
3667 print_skmeminfo(tb, NETLINK_DIAG_MEMINFO);
3668 printf("\n");
3669 }
3670
3671 return 0;
3672}
3673
8a4025f6 3674static int netlink_show_netlink(struct filter *f)
ecb928c8 3675{
5fb421d4 3676 DIAG_REQUEST(req, struct netlink_diag_req r);
ecb928c8
AV		 3677
3678 req.r.sdiag_family = AF_NETLINK;
3679 req.r.sdiag_protocol = NDIAG_PROTO_ALL;
3680 req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO;
3681
8a4025f6 3682 return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock);
ecb928c8
AV		 3683}
3684
d1f28cf1 3685static int netlink_show(struct filter *f)
aba5acdf
SH		 3686{
3687 FILE *fp;
3688 char buf[256];
3689 int prot, pid;
acd1e437 3690 unsigned int groups;
aba5acdf
SH		 3691 int rq, wq, rc;
3692 unsigned long long sk, cb;
3693
9db7bf15 3694 if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE)))
b9ea445d
VK		 3695 return 0;
3696
129709ae 3697 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
8a4025f6 3698 netlink_show_netlink(f) == 0)
129709ae
AV		 3699 return 0;
3700
ab01dbbb 3701 if ((fp = net_netlink_open()) == NULL)
aba5acdf 3702 return -1;
61170fd8 3703 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3704 fclose(fp);
3705 return -1;
3706 }
aba5acdf 3707
61170fd8 3708 while (fgets(buf, sizeof(buf), fp)) {
aba5acdf
SH		 3709 sscanf(buf, "%llx %d %d %x %d %d %llx %d",
3710 &sk,
3711 &prot, &pid, &groups, &rq, &wq, &cb, &rc);
3712
f271fe01 3713 netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb);
aba5acdf
SH		 3714 }
3715
b95d28c3 3716 fclose(fp);
aba5acdf
SH		 3717 return 0;
3718}
3719
6885e3bf
CG		 3720struct sock_diag_msg {
3721 __u8 sdiag_family;
3722};
3723
3724static int generic_show_sock(const struct sockaddr_nl *addr,
3725 struct nlmsghdr *nlh, void *arg)
3726{
3727 struct sock_diag_msg *r = NLMSG_DATA(nlh);
3728 struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX };
3729
3730 switch (r->sdiag_family) {
3731 case AF_INET:
3732 case AF_INET6:
3733 return show_one_inet_sock(addr, nlh, &inet_arg);
3734 case AF_UNIX:
3735 return unix_show_sock(addr, nlh, arg);
3736 case AF_PACKET:
3737 return packet_show_sock(addr, nlh, arg);
3738 case AF_NETLINK:
3739 return netlink_show_sock(addr, nlh, arg);
3740 default:
3741 return -1;
3742 }
3743}
3744
3745static int handle_follow_request(struct filter *f)
3746{
3747 int ret = -1;
3748 int groups = 0;
3749 struct rtnl_handle rth;
3750
3751 if (f->families & (1 << AF_INET) && f->dbs & (1 << TCP_DB))
3752 groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1);
3753 if (f->families & (1 << AF_INET) && f->dbs & (1 << UDP_DB))
3754 groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1);
3755 if (f->families & (1 << AF_INET6) && f->dbs & (1 << TCP_DB))
3756 groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1);
3757 if (f->families & (1 << AF_INET6) && f->dbs & (1 << UDP_DB))
3758 groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1);
3759
3760 if (groups == 0)
3761 return -1;
3762
3763 if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG))
3764 return -1;
3765
3766 rth.dump = 0;
3767 rth.local.nl_pid = 0;
3768
3769 if (rtnl_dump_filter(&rth, generic_show_sock, f))
3770 goto Exit;
3771
3772 ret = 0;
3773Exit:
3774 rtnl_close(&rth);
3775 return ret;
3776}
3777
acd1e437 3778struct snmpstat {
aba5acdf
SH		 3779 int tcp_estab;
3780};
3781
d1f28cf1 3782static int get_snmp_int(char *proto, char *key, int *result)
aba5acdf
SH		 3783{
3784 char buf[1024];
3785 FILE *fp;
3786 int protolen = strlen(proto);
3787 int keylen = strlen(key);
3788
3789 *result = 0;
3790
ab01dbbb 3791 if ((fp = net_snmp_open()) == NULL)
aba5acdf
SH		 3792 return -1;
3793
3794 while (fgets(buf, sizeof(buf), fp) != NULL) {
3795 char *p = buf;
3796 int pos = 0;
acd1e437 3797
aba5acdf
SH		 3798 if (memcmp(buf, proto, protolen))
3799 continue;
3800 while ((p = strchr(p, ' ')) != NULL) {
3801 pos++;
3802 p++;
3803 if (memcmp(p, key, keylen) == 0 &&
3804 (p[keylen] == ' ' || p[keylen] == '\n'))
3805 break;
3806 }
3807 if (fgets(buf, sizeof(buf), fp) == NULL)
3808 break;
3809 if (memcmp(buf, proto, protolen))
3810 break;
3811 p = buf;
3812 while ((p = strchr(p, ' ')) != NULL) {
3813 p++;
3814 if (--pos == 0) {
3815 sscanf(p, "%d", result);
3816 fclose(fp);
3817 return 0;
3818 }
3819 }
3820 }
3821
3822 fclose(fp);
3823 errno = ESRCH;
3824 return -1;
3825}
3826
3827
3828/* Get stats from sockstat */
3829
acd1e437 3830struct ssummary {
aba5acdf
SH		 3831 int socks;
3832 int tcp_mem;
3833 int tcp_total;
3834 int tcp_orphans;
3835 int tcp_tws;
3836 int tcp4_hashed;
3837 int udp4;
3838 int raw4;
3839 int frag4;
3840 int frag4_mem;
3841 int tcp6_hashed;
3842 int udp6;
3843 int raw6;
3844 int frag6;
3845 int frag6_mem;
3846};
3847
055840f2 3848static void get_sockstat_line(char *line, struct ssummary *s)
aba5acdf
SH		 3849{
3850 char id[256], rem[256];
3851
3852 if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2)
3853 return;
3854
3855 if (strcmp(id, "sockets:") == 0)
3856 sscanf(rem, "%*s%d", &s->socks);
3857 else if (strcmp(id, "UDP:") == 0)
3858 sscanf(rem, "%*s%d", &s->udp4);
3859 else if (strcmp(id, "UDP6:") == 0)
3860 sscanf(rem, "%*s%d", &s->udp6);
3861 else if (strcmp(id, "RAW:") == 0)
3862 sscanf(rem, "%*s%d", &s->raw4);
3863 else if (strcmp(id, "RAW6:") == 0)
3864 sscanf(rem, "%*s%d", &s->raw6);
3865 else if (strcmp(id, "TCP6:") == 0)
3866 sscanf(rem, "%*s%d", &s->tcp6_hashed);
3867 else if (strcmp(id, "FRAG:") == 0)
3868 sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem);
3869 else if (strcmp(id, "FRAG6:") == 0)
3870 sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem);
3871 else if (strcmp(id, "TCP:") == 0)
3872 sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d",
3873 &s->tcp4_hashed,
3874 &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem);
3875}
3876
055840f2 3877static int get_sockstat(struct ssummary *s)
aba5acdf
SH		 3878{
3879 char buf[256];
3880 FILE *fp;
3881
3882 memset(s, 0, sizeof(*s));
3883
ab01dbbb 3884 if ((fp = net_sockstat_open()) == NULL)
aba5acdf 3885 return -1;
acd1e437 3886 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3887 get_sockstat_line(buf, s);
3888 fclose(fp);
3889
ab01dbbb 3890 if ((fp = net_sockstat6_open()) == NULL)
aba5acdf 3891 return 0;
acd1e437 3892 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3893 get_sockstat_line(buf, s);
3894 fclose(fp);
3895
3896 return 0;
3897}
3898
d1f28cf1 3899static int print_summary(void)
aba5acdf 3900{
055840f2 3901 struct ssummary s;
aba5acdf
SH		 3902 struct snmpstat sn;
3903
3904 if (get_sockstat(&s) < 0)
3905 perror("ss: get_sockstat");
3906 if (get_snmp_int("Tcp:", "CurrEstab", &sn.tcp_estab) < 0)
3907 perror("ss: get_snmpstat");
3908
a221d621
BL		 3909 get_slabstat(&slabstat);
3910
aba5acdf
SH		 3911 printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks);
3912
3913 printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
3914 s.tcp_total + slabstat.tcp_syns + s.tcp_tws,
3915 sn.tcp_estab,
3916 s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws),
3917 s.tcp_orphans,
3918 slabstat.tcp_syns,
3919 s.tcp_tws, slabstat.tcp_tws,
3920 slabstat.tcp_ports
3921 );
3922
3923 printf("\n");
3924 printf("Transport Total IP IPv6\n");
3925 printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-");
3926 printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6);
3927 printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6);
3928 printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed);
ae665a52 3929 printf("INET %-9d %-9d %-9d\n",
aba5acdf
SH		 3930 s.raw4+s.udp4+s.tcp4_hashed+
3931 s.raw6+s.udp6+s.tcp6_hashed,
3932 s.raw4+s.udp4+s.tcp4_hashed,
3933 s.raw6+s.udp6+s.tcp6_hashed);
3934 printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6);
3935
3936 printf("\n");
3937
3938 return 0;
3939}
3940
7a96e199 3941static void _usage(FILE *dest)
aba5acdf 3942{
7a96e199 3943 fprintf(dest,
aba5acdf
SH		 3944"Usage: ss [ OPTIONS ]\n"
3945" ss [ OPTIONS ] [ FILTER ]\n"
ff041f16
VK		 3946" -h, --help this message\n"
3947" -V, --version output version information\n"
3948" -n, --numeric don't resolve service names\n"
ab61159a 3949" -r, --resolve resolve host names\n"
ff041f16
VK		 3950" -a, --all display all sockets\n"
3951" -l, --listening display listening sockets\n"
ab61159a
SH		 3952" -o, --options show timer information\n"
3953" -e, --extended show detailed socket information\n"
3954" -m, --memory show socket memory usage\n"
ff041f16
VK		 3955" -p, --processes show process using socket\n"
3956" -i, --info show internal TCP information\n"
3957" -s, --summary show socket usage summary\n"
b0f01cf6 3958" -b, --bpf show bpf filter socket information\n"
6885e3bf 3959" -E, --events continually display sockets as they are destroyed\n"
ff041f16
VK		 3960" -Z, --context display process SELinux security contexts\n"
3961" -z, --contexts display process and socket SELinux security contexts\n"
95ce04bc 3962" -N, --net switch to the specified network namespace name\n"
ab61159a
SH		 3963"\n"
3964" -4, --ipv4 display only IP version 4 sockets\n"
3965" -6, --ipv6 display only IP version 6 sockets\n"
ff041f16
VK		 3966" -0, --packet display PACKET sockets\n"
3967" -t, --tcp display only TCP sockets\n"
f89d46ad 3968" -S, --sctp display only SCTP sockets\n"
ff041f16
VK		 3969" -u, --udp display only UDP sockets\n"
3970" -d, --dccp display only DCCP sockets\n"
3971" -w, --raw display only RAW sockets\n"
3972" -x, --unix display only Unix domain sockets\n"
ab61159a 3973" -f, --family=FAMILY display sockets of type FAMILY\n"
ebef3174 3974" FAMILY := {inet|inet6|link|unix|netlink|help}\n"
ab61159a 3975"\n"
fb2594c1 3976" -K, --kill forcibly close sockets, display what was closed\n"
7a4559f6 3977" -H, --no-header Suppress header line\n"
fb2594c1 3978"\n"
583de149 3979" -A, --query=QUERY, --socket=QUERY\n"
56dee73e 3980" QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n"
ab61159a 3981"\n"
583de149 3982" -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
ab61159a 3983" -F, --filter=FILE read filter information from FILE\n"
ff041f16
VK		 3984" FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
3985" STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
3986" TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listen|closing}\n"
3987" connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3988" synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3989" bucket := {syn-recv|time-wait}\n"
3990" big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listen|closing}\n"
ab61159a 3991 );
7a96e199
AH		 3992}
3993
3994static void help(void) __attribute__((noreturn));
3995static void help(void)
3996{
3997 _usage(stdout);
3998 exit(0);
3999}
4000
4001static void usage(void) __attribute__((noreturn));
4002static void usage(void)
4003{
4004 _usage(stderr);
aba5acdf
SH		 4005 exit(-1);
4006}
4007
4008
d1f28cf1 4009static int scan_state(const char *state)
aba5acdf
SH		 4010{
4011 int i;
acd1e437 4012
aba5acdf
SH		 4013 if (strcasecmp(state, "close") == 0 ||
4014 strcasecmp(state, "closed") == 0)
4015 return (1<<SS_CLOSE);
4016 if (strcasecmp(state, "syn-rcv") == 0)
4017 return (1<<SS_SYN_RECV);
1a5bad5a 4018 if (strcasecmp(state, "established") == 0)
aba5acdf
SH		 4019 return (1<<SS_ESTABLISHED);
4020 if (strcasecmp(state, "all") == 0)
4021 return SS_ALL;
4022 if (strcasecmp(state, "connected") == 0)
4023 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN));
1a5bad5a 4024 if (strcasecmp(state, "synchronized") == 0)
aba5acdf
SH		 4025 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT));
4026 if (strcasecmp(state, "bucket") == 0)
4027 return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT);
4028 if (strcasecmp(state, "big") == 0)
4029 return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT));
acd1e437 4030 for (i = 0; i < SS_MAX; i++) {
1a5bad5a 4031 if (strcasecmp(state, sstate_namel[i]) == 0)
aba5acdf
SH		 4032 return (1<<i);
4033 }
9db7bf15
VK		 4034
4035 fprintf(stderr, "ss: wrong state name: %s\n", state);
4036 exit(-1);
aba5acdf
SH		 4037}
4038
ab61159a
SH		 4039static const struct option long_opts[] = {
4040 { "numeric", 0, 0, 'n' },
4041 { "resolve", 0, 0, 'r' },
4042 { "options", 0, 0, 'o' },
4043 { "extended", 0, 0, 'e' },
4044 { "memory", 0, 0, 'm' },
4045 { "info", 0, 0, 'i' },
4046 { "processes", 0, 0, 'p' },
372c30d2 4047 { "bpf", 0, 0, 'b' },
6885e3bf 4048 { "events", 0, 0, 'E' },
351efcde 4049 { "dccp", 0, 0, 'd' },
ab61159a 4050 { "tcp", 0, 0, 't' },
f89d46ad 4051 { "sctp", 0, 0, 'S' },
ab61159a
SH		 4052 { "udp", 0, 0, 'u' },
4053 { "raw", 0, 0, 'w' },
4054 { "unix", 0, 0, 'x' },
4055 { "all", 0, 0, 'a' },
4056 { "listening", 0, 0, 'l' },
4057 { "ipv4", 0, 0, '4' },
4058 { "ipv6", 0, 0, '6' },
4059 { "packet", 0, 0, '0' },
4060 { "family", 1, 0, 'f' },
4061 { "socket", 1, 0, 'A' },
583de149 4062 { "query", 1, 0, 'A' },
c3f346b0 4063 { "summary", 0, 0, 's' },
583de149 4064 { "diag", 1, 0, 'D' },
ab61159a
SH		 4065 { "filter", 1, 0, 'F' },
4066 { "version", 0, 0, 'V' },
4067 { "help", 0, 0, 'h' },
116ac927
RH		 4068 { "context", 0, 0, 'Z' },
4069 { "contexts", 0, 0, 'z' },
95ce04bc 4070 { "net", 1, 0, 'N' },
fb2594c1 4071 { "kill", 0, 0, 'K' },
7a4559f6 4072 { "no-header", 0, 0, 'H' },
ab61159a 4073 { 0 }
ae665a52 4074
ab61159a
SH		 4075};
4076
aba5acdf
SH		 4077int main(int argc, char *argv[])
4078{
aba5acdf
SH		 4079 int saw_states = 0;
4080 int saw_query = 0;
4081 int do_summary = 0;
7d105b56 4082 const char *dump_tcpdiag = NULL;
aba5acdf
SH		 4083 FILE *filter_fp = NULL;
4084 int ch;
9db7bf15 4085 int state_filter = 0;
aba5acdf 4086
168d97f9
SH		 4087 while ((ch = getopt_long(argc, argv,
4088 "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHS",
ab61159a 4089 long_opts, NULL)) != EOF) {
acd1e437 4090 switch (ch) {
aba5acdf
SH		 4091 case 'n':
4092 resolve_services = 0;
4093 break;
4094 case 'r':
4095 resolve_hosts = 1;
4096 break;
4097 case 'o':
4098 show_options = 1;
4099 break;
4100 case 'e':
4101 show_options = 1;
4102 show_details++;
4103 break;
4104 case 'm':
4105 show_mem = 1;
4106 break;
4107 case 'i':
4108 show_tcpinfo = 1;
4109 break;
4110 case 'p':
4111 show_users++;
fbc0f876 4112 user_ent_hash_build();
aba5acdf 4113 break;
372c30d2
ND		 4114 case 'b':
4115 show_options = 1;
4116 show_bpf++;
4117 break;
6885e3bf
CG		 4118 case 'E':
4119 follow_events = 1;
4120 break;
351efcde 4121 case 'd':
57ff5a10 4122 filter_db_set(&current_filter, DCCP_DB);
351efcde 4123 break;
aba5acdf 4124 case 't':
57ff5a10 4125 filter_db_set(&current_filter, TCP_DB);
aba5acdf 4126 break;
f89d46ad
PS		 4127 case 'S':
4128 filter_db_set(&current_filter, SCTP_DB);
4129 break;
aba5acdf 4130 case 'u':
57ff5a10 4131 filter_db_set(&current_filter, UDP_DB);
aba5acdf
SH		 4132 break;
4133 case 'w':
57ff5a10 4134 filter_db_set(&current_filter, RAW_DB);
aba5acdf
SH		 4135 break;
4136 case 'x':
9db7bf15 4137 filter_af_set(&current_filter, AF_UNIX);
aba5acdf
SH		 4138 break;
4139 case 'a':
9db7bf15 4140 state_filter = SS_ALL;
aba5acdf
SH		 4141 break;
4142 case 'l':
9db7bf15 4143 state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE);
aba5acdf
SH		 4144 break;
4145 case '4':
9db7bf15 4146 filter_af_set(&current_filter, AF_INET);
aba5acdf
SH		 4147 break;
4148 case '6':
9db7bf15 4149 filter_af_set(&current_filter, AF_INET6);
aba5acdf
SH		 4150 break;
4151 case '0':
9db7bf15 4152 filter_af_set(&current_filter, AF_PACKET);
aba5acdf
SH		 4153 break;
4154 case 'f':
4155 if (strcmp(optarg, "inet") == 0)
9db7bf15 4156 filter_af_set(&current_filter, AF_INET);
aba5acdf 4157 else if (strcmp(optarg, "inet6") == 0)
9db7bf15 4158 filter_af_set(&current_filter, AF_INET6);
aba5acdf 4159 else if (strcmp(optarg, "link") == 0)
9db7bf15 4160 filter_af_set(&current_filter, AF_PACKET);
aba5acdf 4161 else if (strcmp(optarg, "unix") == 0)
9db7bf15 4162 filter_af_set(&current_filter, AF_UNIX);
aba5acdf 4163 else if (strcmp(optarg, "netlink") == 0)
9db7bf15 4164 filter_af_set(&current_filter, AF_NETLINK);
aba5acdf 4165 else if (strcmp(optarg, "help") == 0)
7a96e199 4166 help();
aba5acdf 4167 else {
9db7bf15
VK		 4168 fprintf(stderr, "ss: \"%s\" is invalid family\n",
4169 optarg);
aba5acdf
SH		 4170 usage();
4171 }
4172 break;
4173 case 'A':
4174 {
4175 char *p, *p1;
acd1e437 4176
aba5acdf
SH		 4177 if (!saw_query) {
4178 current_filter.dbs = 0;
7f9dddbe 4179 state_filter = state_filter ?
acd1e437 4180 state_filter : SS_CONN;
aba5acdf
SH		 4181 saw_query = 1;
4182 do_default = 0;
4183 }
4184 p = p1 = optarg;
4185 do {
4186 if ((p1 = strchr(p, ',')) != NULL)
ae665a52 4187 *p1 = 0;
aba5acdf 4188 if (strcmp(p, "all") == 0) {
57ff5a10 4189 filter_default_dbs(&current_filter);
aba5acdf 4190 } else if (strcmp(p, "inet") == 0) {
57ff5a10
VK		 4191 filter_db_set(&current_filter, UDP_DB);
4192 filter_db_set(&current_filter, DCCP_DB);
4193 filter_db_set(&current_filter, TCP_DB);
f89d46ad 4194 filter_db_set(&current_filter, SCTP_DB);
57ff5a10 4195 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4196 } else if (strcmp(p, "udp") == 0) {
57ff5a10 4197 filter_db_set(&current_filter, UDP_DB);
351efcde 4198 } else if (strcmp(p, "dccp") == 0) {
57ff5a10 4199 filter_db_set(&current_filter, DCCP_DB);
aba5acdf 4200 } else if (strcmp(p, "tcp") == 0) {
57ff5a10 4201 filter_db_set(&current_filter, TCP_DB);
f89d46ad
PS		 4202 } else if (strcmp(p, "sctp") == 0) {
4203 filter_db_set(&current_filter, SCTP_DB);
aba5acdf 4204 } else if (strcmp(p, "raw") == 0) {
57ff5a10 4205 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4206 } else if (strcmp(p, "unix") == 0) {
57ff5a10
VK		 4207 filter_db_set(&current_filter, UNIX_ST_DB);
4208 filter_db_set(&current_filter, UNIX_DG_DB);
4209 filter_db_set(&current_filter, UNIX_SQ_DB);
1a5bad5a 4210 } else if (strcasecmp(p, "unix_stream") == 0 ||
aba5acdf 4211 strcmp(p, "u_str") == 0) {
57ff5a10 4212 filter_db_set(&current_filter, UNIX_ST_DB);
1a5bad5a 4213 } else if (strcasecmp(p, "unix_dgram") == 0 ||
aba5acdf 4214 strcmp(p, "u_dgr") == 0) {
57ff5a10 4215 filter_db_set(&current_filter, UNIX_DG_DB);
30b669d7
MY		 4216 } else if (strcasecmp(p, "unix_seqpacket") == 0 ||
4217 strcmp(p, "u_seq") == 0) {
57ff5a10 4218 filter_db_set(&current_filter, UNIX_SQ_DB);
aba5acdf 4219 } else if (strcmp(p, "packet") == 0) {
57ff5a10
VK		 4220 filter_db_set(&current_filter, PACKET_R_DB);
4221 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf
SH		 4222 } else if (strcmp(p, "packet_raw") == 0 ||
4223 strcmp(p, "p_raw") == 0) {
57ff5a10 4224 filter_db_set(&current_filter, PACKET_R_DB);
aba5acdf
SH		 4225 } else if (strcmp(p, "packet_dgram") == 0 ||
4226 strcmp(p, "p_dgr") == 0) {
57ff5a10 4227 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf 4228 } else if (strcmp(p, "netlink") == 0) {
57ff5a10 4229 filter_db_set(&current_filter, NETLINK_DB);
aba5acdf
SH		 4230 } else {
4231 fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p);
4232 usage();
4233 }
4234 p = p1 + 1;
4235 } while (p1);
4236 break;
4237 }
4238 case 's':
4239 do_summary = 1;
4240 break;
4241 case 'D':
4242 dump_tcpdiag = optarg;
4243 break;
4244 case 'F':
4245 if (filter_fp) {
4246 fprintf(stderr, "More than one filter file\n");
4247 exit(-1);
4248 }
4249 if (optarg[0] == '-')
4250 filter_fp = stdin;
4251 else
4252 filter_fp = fopen(optarg, "r");
4253 if (!filter_fp) {
4254 perror("fopen filter file");
4255 exit(-1);
4256 }
4257 break;
4258 case 'v':
4259 case 'V':
4260 printf("ss utility, iproute2-ss%s\n", SNAPSHOT);
4261 exit(0);
116ac927
RH		 4262 case 'z':
4263 show_sock_ctx++;
36df1a6e 4264 /* fall through */
116ac927
RH		 4265 case 'Z':
4266 if (is_selinux_enabled() <= 0) {
4267 fprintf(stderr, "ss: SELinux is not enabled.\n");
4268 exit(1);
4269 }
4270 show_proc_ctx++;
4271 user_ent_hash_build();
4272 break;
95ce04bc
VK		 4273 case 'N':
4274 if (netns_switch(optarg))
4275 exit(1);
4276 break;
fb2594c1
LC		 4277 case 'K':
4278 current_filter.kill = 1;
4279 break;
7a4559f6
DA		 4280 case 'H':
4281 show_header = 0;
4282 break;
aba5acdf 4283 case 'h':
7a96e199 4284 help();
f73105ab 4285 case '?':
aba5acdf
SH		 4286 default:
4287 usage();
4288 }
4289 }
4290
4291 argc -= optind;
4292 argv += optind;
4293
aba5acdf
SH		 4294 if (do_summary) {
4295 print_summary();
4296 if (do_default && argc == 0)
4297 exit(0);
4298 }
4299
aba5acdf
SH		 4300 while (argc > 0) {
4301 if (strcmp(*argv, "state") == 0) {
4302 NEXT_ARG();
4303 if (!saw_states)
9db7bf15
VK		 4304 state_filter = 0;
4305 state_filter |= scan_state(*argv);
aba5acdf
SH		 4306 saw_states = 1;
4307 } else if (strcmp(*argv, "exclude") == 0 ||
4308 strcmp(*argv, "excl") == 0) {
4309 NEXT_ARG();
4310 if (!saw_states)
9db7bf15
VK		 4311 state_filter = SS_ALL;
4312 state_filter &= ~scan_state(*argv);
aba5acdf
SH		 4313 saw_states = 1;
4314 } else {
aba5acdf
SH		 4315 break;
4316 }
4317 argc--; argv++;
4318 }
4319
9db7bf15
VK		 4320 if (do_default) {
4321 state_filter = state_filter ? state_filter : SS_CONN;
4322 filter_default_dbs(&current_filter);
9db7bf15
VK		 4323 }
4324
57ff5a10
VK		 4325 filter_states_set(&current_filter, state_filter);
4326 filter_merge_defaults(&current_filter);
4327
9db7bf15 4328 if (resolve_services && resolve_hosts &&
168d97f9 4329 (current_filter.dbs & (UNIX_DBM|INET_L4_DBM)))
9db7bf15
VK		 4330 init_service_resolver();
4331
9db7bf15
VK		 4332 if (current_filter.dbs == 0) {
4333 fprintf(stderr, "ss: no socket tables to show with such filter.\n");
4334 exit(0);
4335 }
4336 if (current_filter.families == 0) {
4337 fprintf(stderr, "ss: no families to show with such filter.\n");
4338 exit(0);
4339 }
aba5acdf
SH		 4340 if (current_filter.states == 0) {
4341 fprintf(stderr, "ss: no socket states to show with such filter.\n");
4342 exit(0);
4343 }
4344
4345 if (dump_tcpdiag) {
4346 FILE *dump_fp = stdout;
acd1e437 4347
aba5acdf
SH		 4348 if (!(current_filter.dbs & (1<<TCP_DB))) {
4349 fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n");
4350 exit(0);
4351 }
4352 if (dump_tcpdiag[0] != '-') {
4353 dump_fp = fopen(dump_tcpdiag, "w");
4354 if (!dump_tcpdiag) {
4355 perror("fopen dump file");
4356 exit(-1);
4357 }
4358 }
3fe5b534 4359 inet_show_netlink(&current_filter, dump_fp, IPPROTO_TCP);
aba5acdf
SH		 4360 fflush(dump_fp);
4361 exit(0);
4362 }
4363
1527a17e
VK		 4364 if (ssfilter_parse(&current_filter.f, argc, argv, filter_fp))
4365 usage();
4366
aba5acdf
SH		 4367 netid_width = 0;
4368 if (current_filter.dbs&(current_filter.dbs-1))
4369 netid_width = 5;
4370
4371 state_width = 0;
4372 if (current_filter.states&(current_filter.states-1))
4373 state_width = 10;
4374
4375 screen_width = 80;
4376 if (isatty(STDOUT_FILENO)) {
4377 struct winsize w;
4378
4379 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) {
4380 if (w.ws_col > 0)
4381 screen_width = w.ws_col;
4382 }
4383 }
4384
4385 addrp_width = screen_width;
4386 addrp_width -= netid_width+1;
4387 addrp_width -= state_width+1;
4388 addrp_width -= 14;
4389
4390 if (addrp_width&1) {
4391 if (netid_width)
4392 netid_width++;
4393 else if (state_width)
4394 state_width++;
4395 }
4396
4397 addrp_width /= 2;
4398 addrp_width--;
4399
4400 serv_width = resolve_services ? 7 : 5;
4401
4402 if (addrp_width < 15+serv_width+1)
4403 addrp_width = 15+serv_width+1;
4404
ae665a52 4405 addr_width = addrp_width - serv_width - 1;
aba5acdf 4406
7a4559f6
DA		 4407 if (show_header) {
4408 if (netid_width)
4409 printf("%-*s ", netid_width, "Netid");
4410 if (state_width)
4411 printf("%-*s ", state_width, "State");
4412 printf("%-6s %-6s ", "Recv-Q", "Send-Q");
4413 }
aba5acdf 4414
d68e00f7 4415 /* Make enough space for the local/remote port field */
4416 addr_width -= 13;
4417 serv_width += 13;
2dc85485 4418
7a4559f6
DA		 4419 if (show_header) {
4420 printf("%*s:%-*s %*s:%-*s\n",
4421 addr_width, "Local Address", serv_width, "Port",
4422 addr_width, "Peer Address", serv_width, "Port");
4423 }
aba5acdf 4424
aba5acdf
SH		 4425 fflush(stdout);
4426
6885e3bf
CG		 4427 if (follow_events)
4428 exit(handle_follow_request(&current_filter));
4429
aba5acdf
SH		 4430 if (current_filter.dbs & (1<<NETLINK_DB))
4431 netlink_show(&current_filter);
4432 if (current_filter.dbs & PACKET_DBM)
4433 packet_show(&current_filter);
4434 if (current_filter.dbs & UNIX_DBM)
4435 unix_show(&current_filter);
4436 if (current_filter.dbs & (1<<RAW_DB))
4437 raw_show(&current_filter);
4438 if (current_filter.dbs & (1<<UDP_DB))
4439 udp_show(&current_filter);
4440 if (current_filter.dbs & (1<<TCP_DB))
3fe5b534 4441 tcp_show(&current_filter, IPPROTO_TCP);
351efcde 4442 if (current_filter.dbs & (1<<DCCP_DB))
3fe5b534 4443 tcp_show(&current_filter, IPPROTO_DCCP);
f89d46ad
PS		 4444 if (current_filter.dbs & (1<<SCTP_DB))
4445 sctp_show(&current_filter);
116ac927
RH		 4446
4447 if (show_users || show_proc_ctx || show_sock_ctx)
4448 user_ent_destroy();
4449
aba5acdf
SH		 4450 return 0;
4451}
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