]> git.proxmox.com Git - mirror_iproute2.git/blame - misc/ss.c
projects / mirror_iproute2.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
ss: Add missing tab when printing UNIX details
[mirror_iproute2.git] / misc / ss.c
CommitLineData
b9de3ecf 1/*
aba5acdf
SH		 2 * ss.c "sockstat", socket statistics
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
10 */
11
12#include <stdio.h>
13#include <stdlib.h>
14#include <unistd.h>
15#include <syslog.h>
16#include <fcntl.h>
17#include <sys/ioctl.h>
18#include <sys/socket.h>
19#include <sys/uio.h>
20#include <netinet/in.h>
21#include <string.h>
22#include <errno.h>
23#include <netdb.h>
24#include <arpa/inet.h>
aba5acdf
SH		 25#include <dirent.h>
26#include <fnmatch.h>
ab61159a 27#include <getopt.h>
bf4ceee6 28#include <stdbool.h>
6b376ebd 29#include <limits.h>
aba5acdf
SH		 30
31#include "utils.h"
32#include "rt_names.h"
33#include "ll_map.h"
34#include "libnetlink.h"
95ce04bc 35#include "namespace.h"
aba5acdf
SH		 36#include "SNAPSHOT.h"
37
9cb1eccf 38#include <linux/tcp.h>
f6062360 39#include <linux/sock_diag.h>
351efcde 40#include <linux/inet_diag.h>
dfbaa90d 41#include <linux/unix_diag.h>
372c30d2
ND		 42#include <linux/netdevice.h> /* for MAX_ADDR_LEN */
43#include <linux/filter.h>
44#include <linux/packet_diag.h>
ecb928c8 45#include <linux/netlink_diag.h>
f89d46ad 46#include <linux/sctp.h>
aba5acdf 47
8a4025f6 48#define MAGIC_SEQ 123456
49
5fb421d4 50#define DIAG_REQUEST(_req, _r) \
51 struct { \
52 struct nlmsghdr nlh; \
53 _r; \
54 } _req = { \
55 .nlh = { \
56 .nlmsg_type = SOCK_DIAG_BY_FAMILY, \
57 .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\
8a4025f6 58 .nlmsg_seq = MAGIC_SEQ, \
5fb421d4 59 .nlmsg_len = sizeof(_req), \
60 }, \
61 }
62
116ac927
RH		 63#if HAVE_SELINUX
64#include <selinux/selinux.h>
65#else
66/* Stubs for SELinux functions */
67static int is_selinux_enabled(void)
68{
69 return -1;
70}
71
72static int getpidcon(pid_t pid, char **context)
73{
74 *context = NULL;
75 return -1;
76}
77
78static int getfilecon(char *path, char **context)
79{
80 *context = NULL;
81 return -1;
82}
83
84static int security_get_initial_context(char *name, char **context)
85{
86 *context = NULL;
87 return -1;
88}
89#endif
90
acd1e437 91int resolve_hosts;
aba5acdf
SH		 92int resolve_services = 1;
93int preferred_family = AF_UNSPEC;
acd1e437
SH		 94int show_options;
95int show_details;
96int show_users;
97int show_mem;
98int show_tcpinfo;
99int show_bpf;
100int show_proc_ctx;
101int show_sock_ctx;
7a4559f6 102int show_header = 1;
116ac927 103/* If show_users & show_proc_ctx only do user_ent_hash_build() once */
acd1e437
SH		 104int user_ent_hash_build_init;
105int follow_events;
f89d46ad 106int sctp_ino;
aba5acdf
SH		 107
108int netid_width;
109int state_width;
110int addrp_width;
111int addr_width;
112int serv_width;
113int screen_width;
114
115static const char *TCP_PROTO = "tcp";
f89d46ad 116static const char *SCTP_PROTO = "sctp";
aba5acdf
SH		 117static const char *UDP_PROTO = "udp";
118static const char *RAW_PROTO = "raw";
acd1e437 119static const char *dg_proto;
aba5acdf 120
acd1e437 121enum {
aba5acdf 122 TCP_DB,
351efcde 123 DCCP_DB,
aba5acdf
SH		 124 UDP_DB,
125 RAW_DB,
126 UNIX_DG_DB,
127 UNIX_ST_DB,
30b669d7 128 UNIX_SQ_DB,
aba5acdf
SH		 129 PACKET_DG_DB,
130 PACKET_R_DB,
131 NETLINK_DB,
f89d46ad 132 SCTP_DB,
aba5acdf
SH		 133 MAX_DB
134};
135
136#define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
30b669d7 137#define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB))
aba5acdf 138#define ALL_DB ((1<<MAX_DB)-1)
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
2d791bc8
VK		 846static void sock_state_print(struct sockstat *s, const char *sock_name)
847{
848 if (netid_width)
f89d46ad
PS		 849 printf("%-*s ", netid_width,
850 is_sctp_assoc(s, sock_name) ? "" : sock_name);
851 if (state_width) {
852 if (is_sctp_assoc(s, sock_name))
853 printf("`- %-*s ", state_width - 3,
854 sctp_sstate_name[s->state]);
855 else
856 printf("%-*s ", state_width, sstate_name[s->state]);
857 }
2d791bc8
VK		 858
859 printf("%-6d %-6d ", s->rq, s->wq);
860}
861
f1b39e1b
VK		 862static void sock_details_print(struct sockstat *s)
863{
864 if (s->uid)
865 printf(" uid:%u", s->uid);
866
867 printf(" ino:%u", s->ino);
868 printf(" sk:%llx", s->sk);
ec75249b
LC		 869
870 if (s->mark)
871 printf(" fwmark:0x%x", s->mark);
f1b39e1b
VK		 872}
873
b217df10
VK		 874static void sock_addr_print_width(int addr_len, const char *addr, char *delim,
875 int port_len, const char *port, const char *ifname)
876{
877 if (ifname) {
878 printf("%*s%%%s%s%-*s ", addr_len, addr, ifname, delim,
879 port_len, port);
acd1e437 880 } else {
b217df10
VK		 881 printf("%*s%s%-*s ", addr_len, addr, delim, port_len, port);
882 }
883}
884
885static void sock_addr_print(const char *addr, char *delim, const char *port,
886 const char *ifname)
887{
888 sock_addr_print_width(addr_width, addr, delim, serv_width, port, ifname);
889}
890
7d105b56 891static const char *tmr_name[] = {
aba5acdf
SH		 892 "off",
893 "on",
894 "keepalive",
895 "timewait",
896 "persist",
897 "unknown"
898};
899
d1f28cf1 900static const char *print_ms_timer(int timeout)
aba5acdf
SH		 901{
902 static char buf[64];
903 int secs, msecs, minutes;
acd1e437 904
aba5acdf
SH		 905 if (timeout < 0)
906 timeout = 0;
907 secs = timeout/1000;
908 minutes = secs/60;
909 secs = secs%60;
910 msecs = timeout%1000;
911 buf[0] = 0;
912 if (minutes) {
913 msecs = 0;
914 snprintf(buf, sizeof(buf)-16, "%dmin", minutes);
915 if (minutes > 9)
916 secs = 0;
917 }
918 if (secs) {
919 if (secs > 9)
920 msecs = 0;
921 sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec");
922 }
923 if (msecs)
924 sprintf(buf+strlen(buf), "%03dms", msecs);
925 return buf;
e7113c61 926}
aba5acdf 927
22588a0e 928struct scache {
aba5acdf
SH		 929 struct scache *next;
930 int port;
931 char *name;
932 const char *proto;
933};
934
935struct scache *rlist;
936
d1f28cf1 937static void init_service_resolver(void)
aba5acdf
SH		 938{
939 char buf[128];
940 FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
596307ea
PS		 941
942 if (!fp)
943 return;
944
945 if (!fgets(buf, sizeof(buf), fp)) {
2bcc3c16 946 pclose(fp);
596307ea
PS		 947 return;
948 }
949 while (fgets(buf, sizeof(buf), fp) != NULL) {
950 unsigned int progn, port;
951 char proto[128], prog[128] = "rpc.";
952 struct scache *c;
953
954 if (sscanf(buf, "%u %*d %s %u %s",
acd1e437 955 &progn, proto, &port, prog+4) != 4)
596307ea
PS		 956 continue;
957
958 if (!(c = malloc(sizeof(*c))))
959 continue;
960
961 c->port = port;
962 c->name = strdup(prog);
963 if (strcmp(proto, TCP_PROTO) == 0)
964 c->proto = TCP_PROTO;
965 else if (strcmp(proto, UDP_PROTO) == 0)
966 c->proto = UDP_PROTO;
f89d46ad
PS		 967 else if (strcmp(proto, SCTP_PROTO) == 0)
968 c->proto = SCTP_PROTO;
596307ea
PS		 969 else
970 c->proto = NULL;
971 c->next = rlist;
972 rlist = c;
aba5acdf 973 }
596307ea 974 pclose(fp);
aba5acdf
SH		 975}
976
ab61159a
SH		 977/* Even do not try default linux ephemeral port ranges:
978 * default /etc/services contains so much of useless crap
979 * wouldbe "allocated" to this area that resolution
980 * is really harmful. I shrug each time when seeing
981 * "socks" or "cfinger" in dumps.
982 */
983static int is_ephemeral(int port)
984{
acd1e437 985 static int min = 0, max;
c29d3792
PS		 986
987 if (!min) {
ab01dbbb 988 FILE *f = ephemeral_ports_open();
acd1e437 989
c29d3792
PS		 990 if (!f || fscanf(f, "%d %d", &min, &max) < 2) {
991 min = 1024;
992 max = 4999;
ab61159a 993 }
c29d3792
PS		 994 if (f)
995 fclose(f);
ab61159a 996 }
c29d3792 997 return port >= min && port <= max;
ab61159a
SH		 998}
999
1000
d1f28cf1 1001static const char *__resolve_service(int port)
aba5acdf
SH		 1002{
1003 struct scache *c;
1004
1005 for (c = rlist; c; c = c->next) {
1006 if (c->port == port && c->proto == dg_proto)
1007 return c->name;
1008 }
1009
ab61159a 1010 if (!is_ephemeral(port)) {
aba5acdf
SH		 1011 static int notfirst;
1012 struct servent *se;
acd1e437 1013
aba5acdf
SH		 1014 if (!notfirst) {
1015 setservent(1);
1016 notfirst = 1;
ae665a52 1017 }
aba5acdf
SH		 1018 se = getservbyport(htons(port), dg_proto);
1019 if (se)
1020 return se->s_name;
1021 }
1022
1023 return NULL;
1024}
1025
22588a0e
ED		 1026#define SCACHE_BUCKETS 1024
1027static struct scache *cache_htab[SCACHE_BUCKETS];
aba5acdf 1028
d1f28cf1 1029static const char *resolve_service(int port)
aba5acdf
SH		 1030{
1031 static char buf[128];
22588a0e
ED		 1032 struct scache *c;
1033 const char *res;
1034 int hash;
aba5acdf
SH		 1035
1036 if (port == 0) {
1037 buf[0] = '*';
1038 buf[1] = 0;
1039 return buf;
1040 }
1041
22588a0e
ED		 1042 if (!resolve_services)
1043 goto do_numeric;
aba5acdf 1044
22588a0e
ED		 1045 if (dg_proto == RAW_PROTO)
1046 return inet_proto_n2a(port, buf, sizeof(buf));
1047
1048
1049 hash = (port^(((unsigned long)dg_proto)>>2)) % SCACHE_BUCKETS;
1050
1051 for (c = cache_htab[hash]; c; c = c->next) {
1052 if (c->port == port && c->proto == dg_proto)
1053 goto do_cache;
aba5acdf
SH		 1054 }
1055
22588a0e
ED		 1056 c = malloc(sizeof(*c));
1057 if (!c)
1058 goto do_numeric;
1059 res = __resolve_service(port);
1060 c->port = port;
1061 c->name = res ? strdup(res) : NULL;
1062 c->proto = dg_proto;
1063 c->next = cache_htab[hash];
1064 cache_htab[hash] = c;
1065
1066do_cache:
1067 if (c->name)
1068 return c->name;
1069
1070do_numeric:
aba5acdf
SH		 1071 sprintf(buf, "%u", port);
1072 return buf;
1073}
1074
b217df10 1075static void inet_addr_print(const inet_prefix *a, int port, unsigned int ifindex)
aba5acdf
SH		 1076{
1077 char buf[1024];
1078 const char *ap = buf;
b217df10
VK		 1079 int est_len = addr_width;
1080 const char *ifname = NULL;
aba5acdf
SH		 1081
1082 if (a->family == AF_INET) {
1083 if (a->data[0] == 0) {
1084 buf[0] = '*';
1085 buf[1] = 0;
1086 } else {
a418e451 1087 ap = format_host(AF_INET, 4, a->data);
aba5acdf
SH		 1088 }
1089 } else {
a418e451 1090 ap = format_host(a->family, 16, a->data);
aba5acdf
SH		 1091 est_len = strlen(ap);
1092 if (est_len <= addr_width)
1093 est_len = addr_width;
1094 else
1095 est_len = addr_width + ((est_len-addr_width+3)/4)*4;
1096 }
b217df10 1097
7c8a3cfb 1098 if (ifindex) {
b217df10
VK		 1099 ifname = ll_index_to_name(ifindex);
1100 est_len -= strlen(ifname) + 1; /* +1 for percent char */
4fcfb6bc
MS		 1101 if (est_len < 0)
1102 est_len = 0;
b217df10 1103 }
7c8a3cfb 1104
b217df10
VK		 1105 sock_addr_print_width(est_len, ap, ":", serv_width, resolve_service(port),
1106 ifname);
aba5acdf
SH		 1107}
1108
acd1e437 1109struct aafilter {
aba5acdf
SH		 1110 inet_prefix addr;
1111 int port;
2d293212 1112 unsigned int iface;
ec75249b
LC		 1113 __u32 mark;
1114 __u32 mask;
aba5acdf
SH		 1115 struct aafilter *next;
1116};
1117
d1f28cf1
SH		 1118static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p,
1119 int plen)
aba5acdf
SH		 1120{
1121 if (!inet_addr_match(a, p, plen))
1122 return 0;
7d105b56 1123
aba5acdf
SH		 1124 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1125 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1126 * sockets. Fair? */
1127 if (p->family == AF_INET && a->family == AF_INET6) {
1128 if (a->data[0] == 0 && a->data[1] == 0 &&
1129 a->data[2] == htonl(0xffff)) {
1130 inet_prefix tmp = *a;
acd1e437 1131
aba5acdf
SH		 1132 tmp.data[0] = a->data[3];
1133 return inet_addr_match(&tmp, p, plen);
1134 }
1135 }
1136 return 1;
1137}
1138
d1f28cf1 1139static int unix_match(const inet_prefix *a, const inet_prefix *p)
aba5acdf 1140{
99bb68ff 1141 char *addr, *pattern;
acd1e437 1142
99bb68ff
VK		 1143 memcpy(&addr, a->data, sizeof(addr));
1144 memcpy(&pattern, p->data, sizeof(pattern));
aba5acdf
SH		 1145 if (pattern == NULL)
1146 return 1;
1147 if (addr == NULL)
1148 addr = "";
1149 return !fnmatch(pattern, addr, 0);
1150}
1151
055840f2 1152static int run_ssfilter(struct ssfilter *f, struct sockstat *s)
aba5acdf
SH		 1153{
1154 switch (f->type) {
1155 case SSF_S_AUTO:
1156 {
aba5acdf 1157 if (s->local.family == AF_UNIX) {
99bb68ff 1158 char *p;
acd1e437 1159
99bb68ff 1160 memcpy(&p, s->local.data, sizeof(p));
aba5acdf 1161 return p == NULL || (p[0] == '@' && strlen(p) == 6 &&
ae665a52 1162 strspn(p+1, "0123456789abcdef") == 5);
aba5acdf
SH		 1163 }
1164 if (s->local.family == AF_PACKET)
bbd303d1 1165 return s->lport == 0 && s->local.data[0] == 0;
aba5acdf
SH		 1166 if (s->local.family == AF_NETLINK)
1167 return s->lport < 0;
1168
c29d3792 1169 return is_ephemeral(s->lport);
aba5acdf
SH		 1170 }
1171 case SSF_DCOND:
1172 {
acd1e437
SH		 1173 struct aafilter *a = (void *)f->pred;
1174
aba5acdf
SH		 1175 if (a->addr.family == AF_UNIX)
1176 return unix_match(&s->remote, &a->addr);
1177 if (a->port != -1 && a->port != s->rport)
1178 return 0;
1179 if (a->addr.bitlen) {
1180 do {
1181 if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen))
1182 return 1;
1183 } while ((a = a->next) != NULL);
1184 return 0;
1185 }
1186 return 1;
1187 }
1188 case SSF_SCOND:
1189 {
acd1e437
SH		 1190 struct aafilter *a = (void *)f->pred;
1191
aba5acdf
SH		 1192 if (a->addr.family == AF_UNIX)
1193 return unix_match(&s->local, &a->addr);
1194 if (a->port != -1 && a->port != s->lport)
1195 return 0;
1196 if (a->addr.bitlen) {
1197 do {
1198 if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen))
1199 return 1;
ae665a52 1200 } while ((a = a->next) != NULL);
aba5acdf
SH		 1201 return 0;
1202 }
1203 return 1;
1204 }
1205 case SSF_D_GE:
1206 {
acd1e437
SH		 1207 struct aafilter *a = (void *)f->pred;
1208
aba5acdf
SH		 1209 return s->rport >= a->port;
1210 }
1211 case SSF_D_LE:
1212 {
acd1e437
SH		 1213 struct aafilter *a = (void *)f->pred;
1214
aba5acdf
SH		 1215 return s->rport <= a->port;
1216 }
1217 case SSF_S_GE:
1218 {
acd1e437
SH		 1219 struct aafilter *a = (void *)f->pred;
1220
aba5acdf
SH		 1221 return s->lport >= a->port;
1222 }
1223 case SSF_S_LE:
1224 {
acd1e437
SH		 1225 struct aafilter *a = (void *)f->pred;
1226
aba5acdf
SH		 1227 return s->lport <= a->port;
1228 }
2d293212
DA		 1229 case SSF_DEVCOND:
1230 {
1231 struct aafilter *a = (void *)f->pred;
aba5acdf 1232
2d293212 1233 return s->iface == a->iface;
ec75249b
LC		 1234 }
1235 case SSF_MARKMASK:
1236 {
1237 struct aafilter *a = (void *)f->pred;
1238
1239 return (s->mark & a->mask) == a->mark;
2d293212 1240 }
aba5acdf
SH		 1241 /* Yup. It is recursion. Sorry. */
1242 case SSF_AND:
1243 return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s);
1244 case SSF_OR:
1245 return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s);
1246 case SSF_NOT:
1247 return !run_ssfilter(f->pred, s);
1248 default:
1249 abort();
1250 }
1251}
1252
ae665a52 1253/* Relocate external jumps by reloc. */
b4b0b7d5 1254static void ssfilter_patch(char *a, int len, int reloc)
aba5acdf
SH		 1255{
1256 while (len > 0) {
acd1e437
SH		 1257 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)a;
1258
aba5acdf
SH		 1259 if (op->no == len+4)
1260 op->no += reloc;
1261 len -= op->yes;
1262 a += op->yes;
1263 }
1264 if (len < 0)
1265 abort();
1266}
1267
b4b0b7d5 1268static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
aba5acdf
SH		 1269{
1270 switch (f->type) {
1271 case SSF_S_AUTO:
1272 {
acd1e437
SH		 1273 if (!(*bytecode = malloc(4))) abort();
1274 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
df39de8d 1275 return 4;
aba5acdf
SH		 1276 }
1277 case SSF_DCOND:
1278 case SSF_SCOND:
1279 {
acd1e437 1280 struct aafilter *a = (void *)f->pred;
aba5acdf
SH		 1281 struct aafilter *b;
1282 char *ptr;
351efcde 1283 int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND);
aba5acdf
SH		 1284 int len = 0;
1285
acd1e437 1286 for (b = a; b; b = b->next) {
351efcde 1287 len += 4 + sizeof(struct inet_diag_hostcond);
aba5acdf
SH		 1288 if (a->addr.family == AF_INET6)
1289 len += 16;
1290 else
1291 len += 4;
1292 if (b->next)
1293 len += 4;
1294 }
1295 if (!(ptr = malloc(len))) abort();
1296 *bytecode = ptr;
acd1e437 1297 for (b = a; b; b = b->next) {
351efcde 1298 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr;
aba5acdf 1299 int alen = (a->addr.family == AF_INET6 ? 16 : 4);
351efcde 1300 int oplen = alen + 4 + sizeof(struct inet_diag_hostcond);
acd1e437 1301 struct inet_diag_hostcond *cond = (struct inet_diag_hostcond *)(ptr+4);
aba5acdf 1302
351efcde 1303 *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 };
aba5acdf
SH		 1304 cond->family = a->addr.family;
1305 cond->port = a->port;
1306 cond->prefix_len = a->addr.bitlen;
1307 memcpy(cond->addr, a->addr.data, alen);
1308 ptr += oplen;
1309 if (b->next) {
351efcde
SH		 1310 op = (struct inet_diag_bc_op *)ptr;
1311 *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)};
aba5acdf
SH		 1312 ptr += 4;
1313 }
1314 }
1315 return ptr - *bytecode;
1316 }
1317 case SSF_D_GE:
1318 {
acd1e437
SH		 1319 struct aafilter *x = (void *)f->pred;
1320
1321 if (!(*bytecode = malloc(8))) abort();
1322 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 };
1323 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1324 return 8;
1325 }
1326 case SSF_D_LE:
1327 {
acd1e437
SH		 1328 struct aafilter *x = (void *)f->pred;
1329
1330 if (!(*bytecode = malloc(8))) abort();
1331 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 };
1332 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1333 return 8;
1334 }
1335 case SSF_S_GE:
1336 {
acd1e437
SH		 1337 struct aafilter *x = (void *)f->pred;
1338
1339 if (!(*bytecode = malloc(8))) abort();
1340 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 };
1341 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1342 return 8;
1343 }
1344 case SSF_S_LE:
1345 {
acd1e437
SH		 1346 struct aafilter *x = (void *)f->pred;
1347
1348 if (!(*bytecode = malloc(8))) abort();
1349 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 };
1350 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1351 return 8;
1352 }
1353
1354 case SSF_AND:
1355 {
376fb868 1356 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1357 int l1, l2;
acd1e437 1358
aba5acdf
SH		 1359 l1 = ssfilter_bytecompile(f->pred, &a1);
1360 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1361 if (!l1 || !l2) {
1362 free(a1);
1363 free(a2);
1364 return 0;
1365 }
aba5acdf
SH		 1366 if (!(a = malloc(l1+l2))) abort();
1367 memcpy(a, a1, l1);
1368 memcpy(a+l1, a2, l2);
1369 free(a1); free(a2);
1370 ssfilter_patch(a, l1, l2);
1371 *bytecode = a;
1372 return l1+l2;
1373 }
1374 case SSF_OR:
1375 {
376fb868 1376 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1377 int l1, l2;
acd1e437 1378
aba5acdf
SH		 1379 l1 = ssfilter_bytecompile(f->pred, &a1);
1380 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1381 if (!l1 || !l2) {
1382 free(a1);
1383 free(a2);
1384 return 0;
1385 }
aba5acdf
SH		 1386 if (!(a = malloc(l1+l2+4))) abort();
1387 memcpy(a, a1, l1);
1388 memcpy(a+l1+4, a2, l2);
1389 free(a1); free(a2);
acd1e437 1390 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 };
aba5acdf
SH		 1391 *bytecode = a;
1392 return l1+l2+4;
1393 }
1394 case SSF_NOT:
1395 {
376fb868 1396 char *a1 = NULL, *a;
2a4fa1c3 1397 int l1;
acd1e437 1398
aba5acdf 1399 l1 = ssfilter_bytecompile(f->pred, &a1);
376fb868
DA		 1400 if (!l1) {
1401 free(a1);
1402 return 0;
1403 }
aba5acdf
SH		 1404 if (!(a = malloc(l1+4))) abort();
1405 memcpy(a, a1, l1);
1406 free(a1);
acd1e437 1407 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 };
aba5acdf
SH		 1408 *bytecode = a;
1409 return l1+4;
2d293212
DA		 1410 }
1411 case SSF_DEVCOND:
1412 {
1413 /* bytecompile for SSF_DEVCOND not supported yet */
1414 return 0;
ec75249b
LC		 1415 }
1416 case SSF_MARKMASK:
1417 {
1418 struct aafilter *a = (void *)f->pred;
1419 struct instr {
1420 struct inet_diag_bc_op op;
1421 struct inet_diag_markcond cond;
1422 };
1423 int inslen = sizeof(struct instr);
1424
1425 if (!(*bytecode = malloc(inslen))) abort();
1426 ((struct instr *)*bytecode)[0] = (struct instr) {
1427 { INET_DIAG_BC_MARK_COND, inslen, inslen + 4 },
1428 { a->mark, a->mask},
1429 };
1430
1431 return inslen;
aba5acdf
SH		 1432 }
1433 default:
1434 abort();
1435 }
1436}
1437
b4b0b7d5 1438static int remember_he(struct aafilter *a, struct hostent *he)
aba5acdf 1439{
ae665a52 1440 char **ptr = he->h_addr_list;
aba5acdf
SH		 1441 int cnt = 0;
1442 int len;
1443
1444 if (he->h_addrtype == AF_INET)
1445 len = 4;
1446 else if (he->h_addrtype == AF_INET6)
1447 len = 16;
1448 else
1449 return 0;
1450
1451 while (*ptr) {
1452 struct aafilter *b = a;
acd1e437 1453
aba5acdf
SH		 1454 if (a->addr.bitlen) {
1455 if ((b = malloc(sizeof(*b))) == NULL)
1456 return cnt;
1457 *b = *a;
1458 b->next = a->next;
1459 a->next = b;
1460 }
1461 memcpy(b->addr.data, *ptr, len);
1462 b->addr.bytelen = len;
1463 b->addr.bitlen = len*8;
1464 b->addr.family = he->h_addrtype;
1465 ptr++;
1466 cnt++;
1467 }
1468 return cnt;
1469}
1470
b4b0b7d5 1471static int get_dns_host(struct aafilter *a, const char *addr, int fam)
aba5acdf
SH		 1472{
1473 static int notfirst;
1474 int cnt = 0;
1475 struct hostent *he;
1476
1477 a->addr.bitlen = 0;
1478 if (!notfirst) {
1479 sethostent(1);
1480 notfirst = 1;
1481 }
1482 he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam);
1483 if (he)
1484 cnt = remember_he(a, he);
1485 if (fam == AF_UNSPEC) {
1486 he = gethostbyname2(addr, AF_INET6);
1487 if (he)
1488 cnt += remember_he(a, he);
1489 }
1490 return !cnt;
1491}
1492
acd1e437 1493static int xll_initted;
aba5acdf 1494
b4b0b7d5 1495static void xll_init(void)
aba5acdf
SH		 1496{
1497 struct rtnl_handle rth;
acd1e437 1498
d2468da0
SH		 1499 if (rtnl_open(&rth, 0) < 0)
1500 exit(1);
1501
aba5acdf
SH		 1502 ll_init_map(&rth);
1503 rtnl_close(&rth);
1504 xll_initted = 1;
1505}
1506
b4b0b7d5 1507static const char *xll_index_to_name(int index)
aba5acdf
SH		 1508{
1509 if (!xll_initted)
1510 xll_init();
1511 return ll_index_to_name(index);
1512}
1513
b4b0b7d5 1514static int xll_name_to_index(const char *dev)
aba5acdf
SH		 1515{
1516 if (!xll_initted)
1517 xll_init();
1518 return ll_name_to_index(dev);
1519}
1520
2d293212
DA		 1521void *parse_devcond(char *name)
1522{
1523 struct aafilter a = { .iface = 0 };
1524 struct aafilter *res;
1525
1526 a.iface = xll_name_to_index(name);
1527 if (a.iface == 0) {
1528 char *end;
930d3f28 1529 unsigned long n;
2d293212 1530
930d3f28
DA		 1531 n = strtoul(name, &end, 0);
1532 if (!end || end == name || *end || n > UINT_MAX)
2d293212 1533 return NULL;
930d3f28
DA		 1534
1535 a.iface = n;
2d293212
DA		 1536 }
1537
1538 res = malloc(sizeof(*res));
1539 *res = a;
1540
1541 return res;
1542}
1543
7871f7db 1544void *parse_hostcond(char *addr, bool is_port)
aba5acdf
SH		 1545{
1546 char *port = NULL;
1527a17e 1547 struct aafilter a = { .port = -1 };
aba5acdf 1548 struct aafilter *res;
1527a17e 1549 int fam = preferred_family;
9db7bf15 1550 struct filter *f = &current_filter;
aba5acdf 1551
1527a17e 1552 if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) {
aba5acdf 1553 char *p;
acd1e437 1554
aba5acdf
SH		 1555 a.addr.family = AF_UNIX;
1556 if (strncmp(addr, "unix:", 5) == 0)
acd1e437 1557 addr += 5;
aba5acdf
SH		 1558 p = strdup(addr);
1559 a.addr.bitlen = 8*strlen(p);
99bb68ff 1560 memcpy(a.addr.data, &p, sizeof(p));
9db7bf15 1561 fam = AF_UNIX;
aba5acdf
SH		 1562 goto out;
1563 }
1564
1527a17e 1565 if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) {
aba5acdf
SH		 1566 a.addr.family = AF_PACKET;
1567 a.addr.bitlen = 0;
1568 if (strncmp(addr, "link:", 5) == 0)
acd1e437 1569 addr += 5;
aba5acdf
SH		 1570 port = strchr(addr, ':');
1571 if (port) {
1572 *port = 0;
1573 if (port[1] && strcmp(port+1, "*")) {
1574 if (get_integer(&a.port, port+1, 0)) {
1575 if ((a.port = xll_name_to_index(port+1)) <= 0)
1576 return NULL;
1577 }
1578 }
1579 }
1580 if (addr[0] && strcmp(addr, "*")) {
1581 unsigned short tmp;
acd1e437 1582
aba5acdf
SH		 1583 a.addr.bitlen = 32;
1584 if (ll_proto_a2n(&tmp, addr))
1585 return NULL;
1586 a.addr.data[0] = ntohs(tmp);
1587 }
9db7bf15 1588 fam = AF_PACKET;
aba5acdf
SH		 1589 goto out;
1590 }
1591
1527a17e 1592 if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) {
aba5acdf
SH		 1593 a.addr.family = AF_NETLINK;
1594 a.addr.bitlen = 0;
1595 if (strncmp(addr, "netlink:", 8) == 0)
acd1e437 1596 addr += 8;
aba5acdf
SH		 1597 port = strchr(addr, ':');
1598 if (port) {
1599 *port = 0;
1600 if (port[1] && strcmp(port+1, "*")) {
1601 if (get_integer(&a.port, port+1, 0)) {
1602 if (strcmp(port+1, "kernel") == 0)
1603 a.port = 0;
1604 else
1605 return NULL;
1606 }
1607 }
1608 }
1609 if (addr[0] && strcmp(addr, "*")) {
1610 a.addr.bitlen = 32;
b00daf6a 1611 if (nl_proto_a2n(&a.addr.data[0], addr) == -1)
1612 return NULL;
aba5acdf 1613 }
9db7bf15 1614 fam = AF_NETLINK;
aba5acdf
SH		 1615 goto out;
1616 }
1617
1527a17e 1618 if (fam == AF_INET || !strncmp(addr, "inet:", 5)) {
aba5acdf 1619 fam = AF_INET;
1527a17e
VK		 1620 if (!strncmp(addr, "inet:", 5))
1621 addr += 5;
1622 } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) {
aba5acdf 1623 fam = AF_INET6;
1527a17e
VK		 1624 if (!strncmp(addr, "inet6:", 6))
1625 addr += 6;
aba5acdf
SH		 1626 }
1627
1628 /* URL-like literal [] */
1629 if (addr[0] == '[') {
1630 addr++;
1631 if ((port = strchr(addr, ']')) == NULL)
1632 return NULL;
1633 *port++ = 0;
1634 } else if (addr[0] == '*') {
1635 port = addr+1;
1636 } else {
1637 port = strrchr(strchr(addr, '/') ? : addr, ':');
1638 }
7871f7db
VK		 1639
1640 if (is_port)
1641 port = addr;
1642
aba5acdf 1643 if (port && *port) {
7871f7db
VK		 1644 if (*port == ':')
1645 *port++ = 0;
1646
aba5acdf
SH		 1647 if (*port && *port != '*') {
1648 if (get_integer(&a.port, port, 0)) {
1649 struct servent *se1 = NULL;
1650 struct servent *se2 = NULL;
acd1e437 1651
aba5acdf
SH		 1652 if (current_filter.dbs&(1<<UDP_DB))
1653 se1 = getservbyname(port, UDP_PROTO);
1654 if (current_filter.dbs&(1<<TCP_DB))
1655 se2 = getservbyname(port, TCP_PROTO);
1656 if (se1 && se2 && se1->s_port != se2->s_port) {
1657 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1658 return NULL;
1659 }
1660 if (!se1)
1661 se1 = se2;
1662 if (se1) {
1663 a.port = ntohs(se1->s_port);
1664 } else {
1665 struct scache *s;
acd1e437 1666
aba5acdf
SH		 1667 for (s = rlist; s; s = s->next) {
1668 if ((s->proto == UDP_PROTO &&
1669 (current_filter.dbs&(1<<UDP_DB))) ||
1670 (s->proto == TCP_PROTO &&
1671 (current_filter.dbs&(1<<TCP_DB)))) {
1672 if (s->name && strcmp(s->name, port) == 0) {
1673 if (a.port > 0 && a.port != s->port) {
1674 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
1675 return NULL;
1676 }
1677 a.port = s->port;
1678 }
1679 }
1680 }
1681 if (a.port <= 0) {
1682 fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port);
1683 return NULL;
1684 }
1685 }
1686 }
1687 }
1688 }
7871f7db 1689 if (!is_port && addr && *addr && *addr != '*') {
aba5acdf
SH		 1690 if (get_prefix_1(&a.addr, addr, fam)) {
1691 if (get_dns_host(&a, addr, fam)) {
1692 fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr);
1693 return NULL;
1694 }
1695 }
1696 }
1697
9db7bf15 1698out:
1527a17e 1699 if (fam != AF_UNSPEC) {
e56a959e 1700 int states = f->states;
1527a17e 1701 f->families = 0;
9db7bf15 1702 filter_af_set(f, fam);
e56a959e 1703 filter_states_set(f, states);
1527a17e 1704 }
9db7bf15 1705
aba5acdf
SH		 1706 res = malloc(sizeof(*res));
1707 if (res)
1708 memcpy(res, &a, sizeof(a));
1709 return res;
1710}
1711
ec75249b
LC		 1712void *parse_markmask(const char *markmask)
1713{
1714 struct aafilter a, *res;
1715
1716 if (strchr(markmask, '/')) {
1717 if (sscanf(markmask, "%i/%i", &a.mark, &a.mask) != 2)
1718 return NULL;
1719 } else {
1720 a.mask = 0xffffffff;
1721 if (sscanf(markmask, "%i", &a.mark) != 1)
1722 return NULL;
1723 }
1724
1725 res = malloc(sizeof(*res));
1726 if (res)
1727 memcpy(res, &a, sizeof(a));
1728 return res;
1729}
1730
8250bc9f
VK		 1731static char *proto_name(int protocol)
1732{
1733 switch (protocol) {
235c4453
NA		 1734 case 0:
1735 return "raw";
8250bc9f
VK		 1736 case IPPROTO_UDP:
1737 return "udp";
1738 case IPPROTO_TCP:
1739 return "tcp";
f89d46ad
PS		 1740 case IPPROTO_SCTP:
1741 return "sctp";
8250bc9f
VK		 1742 case IPPROTO_DCCP:
1743 return "dccp";
1744 }
1745
1746 return "???";
1747}
1748
055840f2 1749static void inet_stats_print(struct sockstat *s, int protocol)
8250bc9f
VK		 1750{
1751 char *buf = NULL;
1752
2d791bc8 1753 sock_state_print(s, proto_name(protocol));
8250bc9f 1754
b217df10
VK		 1755 inet_addr_print(&s->local, s->lport, s->iface);
1756 inet_addr_print(&s->remote, s->rport, 0);
8250bc9f 1757
8250bc9f
VK		 1758 if (show_proc_ctx || show_sock_ctx) {
1759 if (find_entry(s->ino, &buf,
1760 (show_proc_ctx & show_sock_ctx) ?
1761 PROC_SOCK_CTX : PROC_CTX) > 0) {
1762 printf(" users:(%s)", buf);
1763 free(buf);
1764 }
1765 } else if (show_users) {
1766 if (find_entry(s->ino, &buf, USERS) > 0) {
1767 printf(" users:(%s)", buf);
1768 free(buf);
1769 }
1770 }
1771}
1772
055840f2 1773static int proc_parse_inet_addr(char *loc, char *rem, int family, struct
acd1e437 1774 sockstat * s)
8250bc9f
VK		 1775{
1776 s->local.family = s->remote.family = family;
1777 if (family == AF_INET) {
acd1e437
SH		 1778 sscanf(loc, "%x:%x", s->local.data, (unsigned *)&s->lport);
1779 sscanf(rem, "%x:%x", s->remote.data, (unsigned *)&s->rport);
8250bc9f
VK		 1780 s->local.bytelen = s->remote.bytelen = 4;
1781 return 0;
1782 } else {
1783 sscanf(loc, "%08x%08x%08x%08x:%x",
1784 s->local.data,
1785 s->local.data + 1,
1786 s->local.data + 2,
1787 s->local.data + 3,
1788 &s->lport);
1789 sscanf(rem, "%08x%08x%08x%08x:%x",
1790 s->remote.data,
1791 s->remote.data + 1,
1792 s->remote.data + 2,
1793 s->remote.data + 3,
1794 &s->rport);
1795 s->local.bytelen = s->remote.bytelen = 16;
1796 return 0;
1797 }
1798 return -1;
1799}
1800
1801static int proc_inet_split_line(char *line, char **loc, char **rem, char **data)
aba5acdf 1802{
aba5acdf 1803 char *p;
ae665a52 1804
aba5acdf
SH		 1805 if ((p = strchr(line, ':')) == NULL)
1806 return -1;
ae665a52 1807
8250bc9f
VK		 1808 *loc = p+2;
1809 if ((p = strchr(*loc, ':')) == NULL)
aba5acdf 1810 return -1;
ae665a52 1811
8250bc9f
VK		 1812 p[5] = 0;
1813 *rem = p+6;
1814 if ((p = strchr(*rem, ':')) == NULL)
aba5acdf 1815 return -1;
8250bc9f 1816
aba5acdf 1817 p[5] = 0;
8250bc9f
VK		 1818 *data = p+6;
1819 return 0;
1820}
ae665a52 1821
8250bc9f
VK		 1822static char *sprint_bw(char *buf, double bw)
1823{
1824 if (bw > 1000000.)
acd1e437 1825 sprintf(buf, "%.1fM", bw / 1000000.);
8250bc9f 1826 else if (bw > 1000.)
acd1e437 1827 sprintf(buf, "%.1fK", bw / 1000.);
8250bc9f
VK		 1828 else
1829 sprintf(buf, "%g", bw);
aba5acdf 1830
8250bc9f
VK		 1831 return buf;
1832}
ae665a52 1833
f89d46ad
PS		 1834static void sctp_stats_print(struct sctp_info *s)
1835{
1836 if (s->sctpi_tag)
1837 printf(" tag:%x", s->sctpi_tag);
1838 if (s->sctpi_state)
1839 printf(" state:%s", sctp_sstate_name[s->sctpi_state]);
1840 if (s->sctpi_rwnd)
1841 printf(" rwnd:%d", s->sctpi_rwnd);
1842 if (s->sctpi_unackdata)
1843 printf(" unackdata:%d", s->sctpi_unackdata);
1844 if (s->sctpi_penddata)
1845 printf(" penddata:%d", s->sctpi_penddata);
1846 if (s->sctpi_instrms)
1847 printf(" instrms:%d", s->sctpi_instrms);
1848 if (s->sctpi_outstrms)
1849 printf(" outstrms:%d", s->sctpi_outstrms);
1850 if (s->sctpi_inqueue)
1851 printf(" inqueue:%d", s->sctpi_inqueue);
1852 if (s->sctpi_outqueue)
1853 printf(" outqueue:%d", s->sctpi_outqueue);
1854 if (s->sctpi_overall_error)
1855 printf(" overerr:%d", s->sctpi_overall_error);
1856 if (s->sctpi_max_burst)
1857 printf(" maxburst:%d", s->sctpi_max_burst);
1858 if (s->sctpi_maxseg)
1859 printf(" maxseg:%d", s->sctpi_maxseg);
1860 if (s->sctpi_peer_rwnd)
1861 printf(" prwnd:%d", s->sctpi_peer_rwnd);
1862 if (s->sctpi_peer_tag)
1863 printf(" ptag:%x", s->sctpi_peer_tag);
1864 if (s->sctpi_peer_capable)
1865 printf(" pcapable:%d", s->sctpi_peer_capable);
1866 if (s->sctpi_peer_sack)
1867 printf(" psack:%d", s->sctpi_peer_sack);
1868 if (s->sctpi_s_autoclose)
1869 printf(" autoclose:%d", s->sctpi_s_autoclose);
1870 if (s->sctpi_s_adaptation_ind)
1871 printf(" adapind:%d", s->sctpi_s_adaptation_ind);
1872 if (s->sctpi_s_pd_point)
1873 printf(" pdpoint:%d", s->sctpi_s_pd_point);
1874 if (s->sctpi_s_nodelay)
1875 printf(" nodealy:%d", s->sctpi_s_nodelay);
1876 if (s->sctpi_s_disable_fragments)
1877 printf(" nofrag:%d", s->sctpi_s_disable_fragments);
1878 if (s->sctpi_s_v4mapped)
1879 printf(" v4mapped:%d", s->sctpi_s_v4mapped);
1880 if (s->sctpi_s_frag_interleave)
1881 printf(" fraginl:%d", s->sctpi_s_frag_interleave);
1882}
1883
8250bc9f
VK		 1884static void tcp_stats_print(struct tcpstat *s)
1885{
1886 char b1[64];
1887
1888 if (s->has_ts_opt)
1889 printf(" ts");
1890 if (s->has_sack_opt)
1891 printf(" sack");
1892 if (s->has_ecn_opt)
1893 printf(" ecn");
1894 if (s->has_ecnseen_opt)
1895 printf(" ecnseen");
1896 if (s->has_fastopen_opt)
1897 printf(" fastopen");
d2055ea5 1898 if (s->cong_alg[0])
8250bc9f
VK		 1899 printf(" %s", s->cong_alg);
1900 if (s->has_wscale_opt)
1901 printf(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale);
1902 if (s->rto)
1903 printf(" rto:%g", s->rto);
1904 if (s->backoff)
1905 printf(" backoff:%u", s->backoff);
1906 if (s->rtt)
1907 printf(" rtt:%g/%g", s->rtt, s->rttvar);
1908 if (s->ato)
1909 printf(" ato:%g", s->ato);
1910
1911 if (s->qack)
1912 printf(" qack:%d", s->qack);
1913 if (s->qack & 1)
1914 printf(" bidir");
1915
1916 if (s->mss)
1917 printf(" mss:%d", s->mss);
3bf5445c 1918 if (s->cwnd)
d1f338b3 1919 printf(" cwnd:%u", s->cwnd);
8250bc9f
VK		 1920 if (s->ssthresh)
1921 printf(" ssthresh:%d", s->ssthresh);
1922
1a4dda71
ED		 1923 if (s->bytes_acked)
1924 printf(" bytes_acked:%llu", s->bytes_acked);
1925 if (s->bytes_received)
1926 printf(" bytes_received:%llu", s->bytes_received);
ecb435ea
CG		 1927 if (s->segs_out)
1928 printf(" segs_out:%u", s->segs_out);
1929 if (s->segs_in)
1930 printf(" segs_in:%u", s->segs_in);
414aeec9
MKL		 1931 if (s->data_segs_out)
1932 printf(" data_segs_out:%u", s->data_segs_out);
1933 if (s->data_segs_in)
1934 printf(" data_segs_in:%u", s->data_segs_in);
1a4dda71 1935
8250bc9f
VK		 1936 if (s->dctcp && s->dctcp->enabled) {
1937 struct dctcpstat *dctcp = s->dctcp;
1938
3bf5445c 1939 printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
8250bc9f
VK		 1940 dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn,
1941 dctcp->ab_tot);
1942 } else if (s->dctcp) {
3bf5445c 1943 printf(" dctcp:fallback_mode");
8250bc9f
VK		 1944 }
1945
2f0f9aef
NC		 1946 if (s->bbr_info) {
1947 __u64 bw;
1948
1949 bw = s->bbr_info->bbr_bw_hi;
1950 bw <<= 32;
1951 bw |= s->bbr_info->bbr_bw_lo;
1952
1953 printf(" bbr:(bw:%sbps,mrtt:%g",
1954 sprint_bw(b1, bw * 8.0),
1955 (double)s->bbr_info->bbr_min_rtt / 1000.0);
1956 if (s->bbr_info->bbr_pacing_gain)
1957 printf(",pacing_gain:%g",
1958 (double)s->bbr_info->bbr_pacing_gain / 256.0);
1959 if (s->bbr_info->bbr_cwnd_gain)
1960 printf(",cwnd_gain:%g",
1961 (double)s->bbr_info->bbr_cwnd_gain / 256.0);
1962 printf(")");
1963 }
1964
8250bc9f
VK		 1965 if (s->send_bps)
1966 printf(" send %sbps", sprint_bw(b1, s->send_bps));
1967 if (s->lastsnd)
1968 printf(" lastsnd:%u", s->lastsnd);
1969 if (s->lastrcv)
1970 printf(" lastrcv:%u", s->lastrcv);
1971 if (s->lastack)
1972 printf(" lastack:%u", s->lastack);
1973
1974 if (s->pacing_rate) {
1975 printf(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate));
1976 if (s->pacing_rate_max)
1977 printf("/%sbps", sprint_bw(b1,
1978 s->pacing_rate_max));
1979 }
1980
2f579872
NC		 1981 if (s->delivery_rate)
1982 printf(" delivery_rate %sbps", sprint_bw(b1, s->delivery_rate));
1983 if (s->app_limited)
1984 printf(" app_limited");
1985
b6c7fc61
YC		 1986 if (s->busy_time) {
1987 printf(" busy:%llums", s->busy_time / 1000);
1988 if (s->rwnd_limited)
1989 printf(" rwnd_limited:%llums(%.1f%%)",
1990 s->rwnd_limited / 1000,
1991 100.0 * s->rwnd_limited / s->busy_time);
1992 if (s->sndbuf_limited)
1993 printf(" sndbuf_limited:%llums(%.1f%%)",
1994 s->sndbuf_limited / 1000,
1995 100.0 * s->sndbuf_limited / s->busy_time);
1996 }
1997
8250bc9f
VK		 1998 if (s->unacked)
1999 printf(" unacked:%u", s->unacked);
2000 if (s->retrans || s->retrans_total)
2001 printf(" retrans:%u/%u", s->retrans, s->retrans_total);
2002 if (s->lost)
2003 printf(" lost:%u", s->lost);
055840f2 2004 if (s->sacked && s->ss.state != SS_LISTEN)
8250bc9f
VK		 2005 printf(" sacked:%u", s->sacked);
2006 if (s->fackets)
2007 printf(" fackets:%u", s->fackets);
2008 if (s->reordering != 3)
2009 printf(" reordering:%d", s->reordering);
2010 if (s->rcv_rtt)
2011 printf(" rcv_rtt:%g", s->rcv_rtt);
2012 if (s->rcv_space)
2013 printf(" rcv_space:%d", s->rcv_space);
9e99e495
SH		 2014 if (s->not_sent)
2015 printf(" notsent:%u", s->not_sent);
2016 if (s->min_rtt)
2017 printf(" minrtt:%g", s->min_rtt);
8250bc9f
VK		 2018}
2019
055840f2
VK		 2020static void tcp_timer_print(struct tcpstat *s)
2021{
2022 if (s->timer) {
2023 if (s->timer > 4)
2024 s->timer = 5;
2025 printf(" timer:(%s,%s,%d)",
2026 tmr_name[s->timer],
2027 print_ms_timer(s->timeout),
2028 s->retrans);
2029 }
2030}
2031
f89d46ad
PS		 2032static void sctp_timer_print(struct tcpstat *s)
2033{
2034 if (s->timer)
2035 printf(" timer:(T3_RTX,%s,%d)",
2036 print_ms_timer(s->timeout), s->retrans);
2037}
2038
8250bc9f
VK		 2039static int tcp_show_line(char *line, const struct filter *f, int family)
2040{
2041 int rto = 0, ato = 0;
2042 struct tcpstat s = {};
2043 char *loc, *rem, *data;
2044 char opt[256];
2045 int n;
2046 int hz = get_user_hz();
2047
2048 if (proc_inet_split_line(line, &loc, &rem, &data))
2049 return -1;
2050
2051 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2052
8250bc9f
VK		 2053 if (!(f->states & (1 << state)))
2054 return 0;
2055
055840f2 2056 proc_parse_inet_addr(loc, rem, family, &s.ss);
ae665a52 2057
055840f2 2058 if (f->f && run_ssfilter(f->f, &s.ss) == 0)
aba5acdf 2059 return 0;
ae665a52 2060
aba5acdf 2061 opt[0] = 0;
d1f338b3 2062 n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
055840f2
VK		 2063 &s.ss.state, &s.ss.wq, &s.ss.rq,
2064 &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes,
2065 &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd,
2066 &s.ssthresh, opt);
ae665a52 2067
aba5acdf
SH		 2068 if (n < 17)
2069 opt[0] = 0;
ae665a52 2070
aba5acdf 2071 if (n < 12) {
8250bc9f 2072 rto = 0;
aba5acdf
SH		 2073 s.cwnd = 2;
2074 s.ssthresh = -1;
8250bc9f 2075 ato = s.qack = 0;
aba5acdf 2076 }
ae665a52 2077
8250bc9f
VK		 2078 s.retrans = s.timer != 1 ? s.probes : s.retrans;
2079 s.timeout = (s.timeout * 1000 + hz - 1) / hz;
2080 s.ato = (double)ato / hz;
2081 s.qack /= 2;
2082 s.rto = (double)rto;
2083 s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh;
2084 s.rto = s.rto != 3 * hz ? s.rto / hz : 0;
ae665a52 2085
055840f2
VK		 2086 inet_stats_print(&s.ss, IPPROTO_TCP);
2087
2088 if (show_options)
2089 tcp_timer_print(&s);
116ac927 2090
aba5acdf 2091 if (show_details) {
f1b39e1b 2092 sock_details_print(&s.ss);
aba5acdf
SH		 2093 if (opt[0])
2094 printf(" opt:\"%s\"", opt);
2095 }
aba5acdf 2096
8250bc9f
VK		 2097 if (show_tcpinfo)
2098 tcp_stats_print(&s);
2099
2100 printf("\n");
aba5acdf
SH		 2101 return 0;
2102}
2103
ab01dbbb
SH		 2104static int generic_record_read(FILE *fp,
2105 int (*worker)(char*, const struct filter *, int),
2106 const struct filter *f, int fam)
aba5acdf 2107{
ab01dbbb 2108 char line[256];
aba5acdf 2109
ab01dbbb
SH		 2110 /* skip header */
2111 if (fgets(line, sizeof(line), fp) == NULL)
aba5acdf 2112 goto outerr;
ab01dbbb
SH		 2113
2114 while (fgets(line, sizeof(line), fp) != NULL) {
2115 int n = strlen(line);
acd1e437 2116
ab01dbbb
SH		 2117 if (n == 0 || line[n-1] != '\n') {
2118 errno = -EINVAL;
2119 return -1;
aba5acdf 2120 }
ab01dbbb 2121 line[n-1] = 0;
aba5acdf 2122
ab01dbbb
SH		 2123 if (worker(line, f, fam) < 0)
2124 return 0;
2125 }
aba5acdf 2126outerr:
ab01dbbb
SH		 2127
2128 return ferror(fp) ? -1 : 0;
aba5acdf 2129}
ae665a52 2130
51ff9f24
HFS		 2131static void print_skmeminfo(struct rtattr *tb[], int attrtype)
2132{
2133 const __u32 *skmeminfo;
db08bdb8
VK		 2134
2135 if (!tb[attrtype]) {
2136 if (attrtype == INET_DIAG_SKMEMINFO) {
2137 if (!tb[INET_DIAG_MEMINFO])
2138 return;
2139
2140 const struct inet_diag_meminfo *minfo =
2141 RTA_DATA(tb[INET_DIAG_MEMINFO]);
2142
2143 printf(" mem:(r%u,w%u,f%u,t%u)",
2144 minfo->idiag_rmem,
2145 minfo->idiag_wmem,
2146 minfo->idiag_fmem,
2147 minfo->idiag_tmem);
2148 }
51ff9f24 2149 return;
db08bdb8
VK		 2150 }
2151
51ff9f24
HFS		 2152 skmeminfo = RTA_DATA(tb[attrtype]);
2153
2154 printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2155 skmeminfo[SK_MEMINFO_RMEM_ALLOC],
2156 skmeminfo[SK_MEMINFO_RCVBUF],
2157 skmeminfo[SK_MEMINFO_WMEM_ALLOC],
2158 skmeminfo[SK_MEMINFO_SNDBUF],
2159 skmeminfo[SK_MEMINFO_FWD_ALLOC],
2160 skmeminfo[SK_MEMINFO_WMEM_QUEUED],
2161 skmeminfo[SK_MEMINFO_OPTMEM]);
2162
2163 if (RTA_PAYLOAD(tb[attrtype]) >=
2164 (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32))
2165 printf(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]);
2166
6df9c7a0
ED		 2167 if (RTA_PAYLOAD(tb[attrtype]) >=
2168 (SK_MEMINFO_DROPS + 1) * sizeof(__u32))
2169 printf(",d%u", skmeminfo[SK_MEMINFO_DROPS]);
2170
51ff9f24
HFS		 2171 printf(")");
2172}
2173
8250bc9f
VK		 2174#define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2175
5b816047
PE		 2176static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2177 struct rtattr *tb[])
7d105b56 2178{
b4b0b7d5 2179 double rtt = 0;
8250bc9f 2180 struct tcpstat s = {};
7d105b56 2181
055840f2
VK		 2182 s.ss.state = r->idiag_state;
2183
db08bdb8 2184 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
7d105b56 2185
351efcde 2186 if (tb[INET_DIAG_INFO]) {
05e18118 2187 struct tcp_info *info;
351efcde 2188 int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
05e18118
SH		 2189
2190 /* workaround for older kernels with less fields */
2191 if (len < sizeof(*info)) {
2192 info = alloca(sizeof(*info));
351efcde 2193 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
656e8fdd 2194 memset((char *)info + len, 0, sizeof(*info) - len);
05e18118 2195 } else
351efcde 2196 info = RTA_DATA(tb[INET_DIAG_INFO]);
05e18118 2197
b4b0b7d5 2198 if (show_options) {
8250bc9f
VK		 2199 s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS);
2200 s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK);
2201 s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN);
2202 s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN);
2203 s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA);
b4b0b7d5 2204 }
52d5ac3f 2205
d2055ea5
ED		 2206 if (tb[INET_DIAG_CONG])
2207 strncpy(s.cong_alg,
2208 rta_getattr_str(tb[INET_DIAG_CONG]),
2209 sizeof(s.cong_alg) - 1);
8250bc9f
VK		 2210
2211 if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) {
2212 s.has_wscale_opt = true;
2213 s.snd_wscale = info->tcpi_snd_wscale;
2214 s.rcv_wscale = info->tcpi_rcv_wscale;
2215 }
ea8fc104 2216
7d105b56 2217 if (info->tcpi_rto && info->tcpi_rto != 3000000)
8250bc9f
VK		 2218 s.rto = (double)info->tcpi_rto / 1000;
2219
2220 s.backoff = info->tcpi_backoff;
2221 s.rtt = (double)info->tcpi_rtt / 1000;
2222 s.rttvar = (double)info->tcpi_rttvar / 1000;
11ba90fc 2223 s.ato = (double)info->tcpi_ato / 1000;
8250bc9f
VK		 2224 s.mss = info->tcpi_snd_mss;
2225 s.rcv_space = info->tcpi_rcv_space;
2226 s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000;
2227 s.lastsnd = info->tcpi_last_data_sent;
2228 s.lastrcv = info->tcpi_last_data_recv;
2229 s.lastack = info->tcpi_last_ack_recv;
2230 s.unacked = info->tcpi_unacked;
2231 s.retrans = info->tcpi_retrans;
2232 s.retrans_total = info->tcpi_total_retrans;
2233 s.lost = info->tcpi_lost;
2234 s.sacked = info->tcpi_sacked;
2235 s.reordering = info->tcpi_reordering;
2236 s.rcv_space = info->tcpi_rcv_space;
2237 s.cwnd = info->tcpi_snd_cwnd;
2238
7d105b56 2239 if (info->tcpi_snd_ssthresh < 0xFFFF)
8250bc9f 2240 s.ssthresh = info->tcpi_snd_ssthresh;
52d5ac3f 2241
b4b0b7d5 2242 rtt = (double) info->tcpi_rtt;
351efcde 2243 if (tb[INET_DIAG_VEGASINFO]) {
05e18118 2244 const struct tcpvegas_info *vinfo
351efcde 2245 = RTA_DATA(tb[INET_DIAG_VEGASINFO]);
7d105b56 2246
ae665a52 2247 if (vinfo->tcpv_enabled &&
8250bc9f 2248 vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff)
ea8fc104 2249 rtt = vinfo->tcpv_rtt;
b4b0b7d5
SH		 2250 }
2251
907e1aca 2252 if (tb[INET_DIAG_DCTCPINFO]) {
8250bc9f
VK		 2253 struct dctcpstat *dctcp = malloc(sizeof(struct
2254 dctcpstat));
2255
907e1aca
DB		 2256 const struct tcp_dctcp_info *dinfo
2257 = RTA_DATA(tb[INET_DIAG_DCTCPINFO]);
2258
8250bc9f
VK		 2259 dctcp->enabled = !!dinfo->dctcp_enabled;
2260 dctcp->ce_state = dinfo->dctcp_ce_state;
2261 dctcp->alpha = dinfo->dctcp_alpha;
2262 dctcp->ab_ecn = dinfo->dctcp_ab_ecn;
2263 dctcp->ab_tot = dinfo->dctcp_ab_tot;
2264 s.dctcp = dctcp;
907e1aca
DB		 2265 }
2266
2f0f9aef
NC		 2267 if (tb[INET_DIAG_BBRINFO]) {
2268 const void *bbr_info = RTA_DATA(tb[INET_DIAG_BBRINFO]);
2269 int len = min(RTA_PAYLOAD(tb[INET_DIAG_BBRINFO]),
2270 sizeof(*s.bbr_info));
2271
2272 s.bbr_info = calloc(1, sizeof(*s.bbr_info));
2273 if (s.bbr_info && bbr_info)
2274 memcpy(s.bbr_info, bbr_info, len);
2275 }
2276
b4b0b7d5 2277 if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
8250bc9f
VK		 2278 s.send_bps = (double) info->tcpi_snd_cwnd *
2279 (double)info->tcpi_snd_mss * 8000000. / rtt;
7d105b56 2280 }
b4b0b7d5 2281
eb6028b2 2282 if (info->tcpi_pacing_rate &&
8250bc9f
VK		 2283 info->tcpi_pacing_rate != ~0ULL) {
2284 s.pacing_rate = info->tcpi_pacing_rate * 8.;
eb6028b2
ED		 2285
2286 if (info->tcpi_max_pacing_rate &&
8250bc9f
VK		 2287 info->tcpi_max_pacing_rate != ~0ULL)
2288 s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.;
eb6028b2 2289 }
1a4dda71
ED		 2290 s.bytes_acked = info->tcpi_bytes_acked;
2291 s.bytes_received = info->tcpi_bytes_received;
ecb435ea
CG		 2292 s.segs_out = info->tcpi_segs_out;
2293 s.segs_in = info->tcpi_segs_in;
414aeec9
MKL		 2294 s.data_segs_out = info->tcpi_data_segs_out;
2295 s.data_segs_in = info->tcpi_data_segs_in;
9e99e495 2296 s.not_sent = info->tcpi_notsent_bytes;
d9ba887e
ED		 2297 if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U)
2298 s.min_rtt = (double) info->tcpi_min_rtt / 1000;
2f579872
NC		 2299 s.delivery_rate = info->tcpi_delivery_rate * 8.;
2300 s.app_limited = info->tcpi_delivery_rate_app_limited;
b6c7fc61
YC		 2301 s.busy_time = info->tcpi_busy_time;
2302 s.rwnd_limited = info->tcpi_rwnd_limited;
2303 s.sndbuf_limited = info->tcpi_sndbuf_limited;
8250bc9f 2304 tcp_stats_print(&s);
92de1c2c 2305 free(s.dctcp);
2f0f9aef 2306 free(s.bbr_info);
77a8ca81 2307 }
77a8ca81
PE		 2308}
2309
f89d46ad
PS		 2310static const char *format_host_sa(struct sockaddr_storage *sa)
2311{
2312 union {
2313 struct sockaddr_in sin;
2314 struct sockaddr_in6 sin6;
2315 } *saddr = (void *)sa;
2316
2317 switch (sa->ss_family) {
2318 case AF_INET:
2319 return format_host(AF_INET, 4, &saddr->sin.sin_addr);
2320 case AF_INET6:
2321 return format_host(AF_INET6, 16, &saddr->sin6.sin6_addr);
2322 default:
2323 return "";
2324 }
2325}
2326
2327static void sctp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2328 struct rtattr *tb[])
2329{
2330 struct sockaddr_storage *sa;
2331 int len;
2332
2333 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
2334
2335 if (tb[INET_DIAG_LOCALS]) {
2336 len = RTA_PAYLOAD(tb[INET_DIAG_LOCALS]);
2337 sa = RTA_DATA(tb[INET_DIAG_LOCALS]);
2338
2339 printf("locals:%s", format_host_sa(sa));
2340 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2341 printf(",%s", format_host_sa(sa));
2342
2343 }
2344 if (tb[INET_DIAG_PEERS]) {
2345 len = RTA_PAYLOAD(tb[INET_DIAG_PEERS]);
2346 sa = RTA_DATA(tb[INET_DIAG_PEERS]);
2347
2348 printf(" peers:%s", format_host_sa(sa));
2349 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
2350 printf(",%s", format_host_sa(sa));
2351 }
2352 if (tb[INET_DIAG_INFO]) {
2353 struct sctp_info *info;
2354 len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
2355
2356 /* workaround for older kernels with less fields */
2357 if (len < sizeof(*info)) {
2358 info = alloca(sizeof(*info));
2359 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
2360 memset((char *)info + len, 0, sizeof(*info) - len);
2361 } else
2362 info = RTA_DATA(tb[INET_DIAG_INFO]);
2363
2364 sctp_stats_print(info);
2365 }
2366}
2367
82d73ea0 2368static void parse_diag_msg(struct nlmsghdr *nlh, struct sockstat *s)
aba5acdf 2369{
acd1e437 2370 struct rtattr *tb[INET_DIAG_MAX+1];
351efcde 2371 struct inet_diag_msg *r = NLMSG_DATA(nlh);
aba5acdf 2372
acd1e437 2373 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
5b816047
PE		 2374 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
2375
82d73ea0
DA		 2376 s->state = r->idiag_state;
2377 s->local.family = s->remote.family = r->idiag_family;
2378 s->lport = ntohs(r->id.idiag_sport);
2379 s->rport = ntohs(r->id.idiag_dport);
2380 s->wq = r->idiag_wqueue;
2381 s->rq = r->idiag_rqueue;
2382 s->ino = r->idiag_inode;
2383 s->uid = r->idiag_uid;
2384 s->iface = r->id.idiag_if;
2385 s->sk = cookie_sk_get(&r->id.idiag_cookie[0]);
2386
ec75249b
LC		 2387 s->mark = 0;
2388 if (tb[INET_DIAG_MARK])
2389 s->mark = *(__u32 *) RTA_DATA(tb[INET_DIAG_MARK]);
41fe6c34
CG		 2390 if (tb[INET_DIAG_PROTOCOL])
2391 s->raw_prot = *(__u8 *)RTA_DATA(tb[INET_DIAG_PROTOCOL]);
2392 else
2393 s->raw_prot = 0;
ec75249b 2394
82d73ea0
DA		 2395 if (s->local.family == AF_INET)
2396 s->local.bytelen = s->remote.bytelen = 4;
2397 else
2398 s->local.bytelen = s->remote.bytelen = 16;
8250bc9f 2399
82d73ea0
DA		 2400 memcpy(s->local.data, r->id.idiag_src, s->local.bytelen);
2401 memcpy(s->remote.data, r->id.idiag_dst, s->local.bytelen);
2402}
aba5acdf 2403
82d73ea0
DA		 2404static int inet_show_sock(struct nlmsghdr *nlh,
2405 struct sockstat *s,
2406 int protocol)
2407{
2408 struct rtattr *tb[INET_DIAG_MAX+1];
2409 struct inet_diag_msg *r = NLMSG_DATA(nlh);
2410
2411 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
2412 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
aba5acdf 2413
6885e3bf
CG		 2414 if (tb[INET_DIAG_PROTOCOL])
2415 protocol = *(__u8 *)RTA_DATA(tb[INET_DIAG_PROTOCOL]);
2416
82d73ea0 2417 inet_stats_print(s, protocol);
116ac927 2418
055840f2
VK		 2419 if (show_options) {
2420 struct tcpstat t = {};
2421
2422 t.timer = r->idiag_timer;
2423 t.timeout = r->idiag_expires;
2424 t.retrans = r->idiag_retrans;
f89d46ad
PS		 2425 if (protocol == IPPROTO_SCTP)
2426 sctp_timer_print(&t);
2427 else
2428 tcp_timer_print(&t);
055840f2
VK		 2429 }
2430
aba5acdf 2431 if (show_details) {
82d73ea0
DA		 2432 sock_details_print(s);
2433 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY]) {
f32dc746 2434 unsigned char v6only;
acd1e437 2435
f32dc746
PS		 2436 v6only = *(__u8 *)RTA_DATA(tb[INET_DIAG_SKV6ONLY]);
2437 printf(" v6only:%u", v6only);
2438 }
5b816047
PE		 2439 if (tb[INET_DIAG_SHUTDOWN]) {
2440 unsigned char mask;
acd1e437 2441
5b816047
PE		 2442 mask = *(__u8 *)RTA_DATA(tb[INET_DIAG_SHUTDOWN]);
2443 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
2444 }
aba5acdf 2445 }
8250bc9f 2446
6babc649 2447 if (show_mem || (show_tcpinfo && protocol != IPPROTO_UDP)) {
7d105b56 2448 printf("\n\t");
f89d46ad
PS		 2449 if (protocol == IPPROTO_SCTP)
2450 sctp_show_info(nlh, r, tb);
2451 else
2452 tcp_show_info(nlh, r, tb);
aba5acdf 2453 }
f89d46ad 2454 sctp_ino = s->ino;
7d105b56 2455
aba5acdf 2456 printf("\n");
aba5acdf 2457 return 0;
aba5acdf
SH		 2458}
2459
746a695f 2460static int tcpdiag_send(int fd, int protocol, struct filter *f)
aba5acdf 2461{
d17b136f 2462 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
aba5acdf
SH		 2463 struct {
2464 struct nlmsghdr nlh;
351efcde 2465 struct inet_diag_req r;
d17b136f
PS		 2466 } req = {
2467 .nlh.nlmsg_len = sizeof(req),
2468 .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
2469 .nlh.nlmsg_seq = MAGIC_SEQ,
2470 .r.idiag_family = AF_INET,
2471 .r.idiag_states = f->states,
2472 };
aba5acdf
SH		 2473 char *bc = NULL;
2474 int bclen;
2475 struct msghdr msg;
2476 struct rtattr rta;
aba5acdf 2477 struct iovec iov[3];
376fb868 2478 int iovlen = 1;
aba5acdf 2479
346f8ca8
PE		 2480 if (protocol == IPPROTO_UDP)
2481 return -1;
2482
3fe5b534
PE		 2483 if (protocol == IPPROTO_TCP)
2484 req.nlh.nlmsg_type = TCPDIAG_GETSOCK;
2485 else
2486 req.nlh.nlmsg_type = DCCPDIAG_GETSOCK;
910b0397 2487 if (show_mem) {
ae665a52 2488 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
910b0397
SW		 2489 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2490 }
b4b0b7d5 2491
7d105b56 2492 if (show_tcpinfo) {
351efcde
SH		 2493 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2494 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2495 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
7d105b56 2496 }
aba5acdf 2497
ae665a52
SH		 2498 iov[0] = (struct iovec){
2499 .iov_base = &req,
2500 .iov_len = sizeof(req)
ea8fc104 2501 };
aba5acdf
SH		 2502 if (f->f) {
2503 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2504 if (bclen) {
2505 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2506 rta.rta_len = RTA_LENGTH(bclen);
2507 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2508 iov[2] = (struct iovec){ bc, bclen };
2509 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2510 iovlen = 3;
2511 }
aba5acdf
SH		 2512 }
2513
2514 msg = (struct msghdr) {
acd1e437 2515 .msg_name = (void *)&nladdr,
ea8fc104 2516 .msg_namelen = sizeof(nladdr),
ae665a52 2517 .msg_iov = iov,
376fb868 2518 .msg_iovlen = iovlen,
aba5acdf
SH		 2519 };
2520
930a75f9
ED		 2521 if (sendmsg(fd, &msg, 0) < 0) {
2522 close(fd);
aba5acdf 2523 return -1;
930a75f9 2524 }
aba5acdf 2525
746a695f
PE		 2526 return 0;
2527}
2528
886d19d6
PE		 2529static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
2530{
d17b136f 2531 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
5fb421d4 2532 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
886d19d6
PE		 2533 char *bc = NULL;
2534 int bclen;
2535 struct msghdr msg;
2536 struct rtattr rta;
2537 struct iovec iov[3];
376fb868 2538 int iovlen = 1;
886d19d6
PE		 2539
2540 if (family == PF_UNSPEC)
2541 return tcpdiag_send(fd, protocol, f);
2542
886d19d6
PE		 2543 memset(&req.r, 0, sizeof(req.r));
2544 req.r.sdiag_family = family;
2545 req.r.sdiag_protocol = protocol;
2546 req.r.idiag_states = f->states;
2547 if (show_mem) {
2548 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
2549 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
2550 }
2551
2552 if (show_tcpinfo) {
2553 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
2554 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
2555 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
2556 }
2557
2558 iov[0] = (struct iovec){
2559 .iov_base = &req,
2560 .iov_len = sizeof(req)
2561 };
2562 if (f->f) {
2563 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 2564 if (bclen) {
2565 rta.rta_type = INET_DIAG_REQ_BYTECODE;
2566 rta.rta_len = RTA_LENGTH(bclen);
2567 iov[1] = (struct iovec){ &rta, sizeof(rta) };
2568 iov[2] = (struct iovec){ bc, bclen };
2569 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
2570 iovlen = 3;
2571 }
886d19d6
PE		 2572 }
2573
2574 msg = (struct msghdr) {
acd1e437 2575 .msg_name = (void *)&nladdr,
886d19d6
PE		 2576 .msg_namelen = sizeof(nladdr),
2577 .msg_iov = iov,
376fb868 2578 .msg_iovlen = iovlen,
886d19d6
PE		 2579 };
2580
2581 if (sendmsg(fd, &msg, 0) < 0) {
2582 close(fd);
2583 return -1;
2584 }
2585
2586 return 0;
2587}
2588
486ccd99
VK		 2589struct inet_diag_arg {
2590 struct filter *f;
2591 int protocol;
fb2594c1 2592 struct rtnl_handle *rth;
486ccd99 2593};
aba5acdf 2594
41fe6c34 2595static int kill_inet_sock(struct nlmsghdr *h, void *arg, struct sockstat *s)
fb2594c1
LC		 2596{
2597 struct inet_diag_msg *d = NLMSG_DATA(h);
2598 struct inet_diag_arg *diag_arg = arg;
2599 struct rtnl_handle *rth = diag_arg->rth;
acd1e437 2600
fb2594c1
LC		 2601 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
2602
2603 req.nlh.nlmsg_type = SOCK_DESTROY;
2604 req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
2605 req.nlh.nlmsg_seq = ++rth->seq;
2606 req.r.sdiag_family = d->idiag_family;
2607 req.r.sdiag_protocol = diag_arg->protocol;
2608 req.r.id = d->id;
2609
41fe6c34
CG		 2610 if (diag_arg->protocol == IPPROTO_RAW) {
2611 struct inet_diag_req_raw *raw = (void *)&req.r;
2612
2613 BUILD_BUG_ON(sizeof(req.r) != sizeof(*raw));
2614 raw->sdiag_raw_protocol = s->raw_prot;
2615 }
2616
fb2594c1
LC		 2617 return rtnl_talk(rth, &req.nlh, NULL, 0);
2618}
2619
486ccd99
VK		 2620static int show_one_inet_sock(const struct sockaddr_nl *addr,
2621 struct nlmsghdr *h, void *arg)
2622{
2623 int err;
2624 struct inet_diag_arg *diag_arg = arg;
2625 struct inet_diag_msg *r = NLMSG_DATA(h);
82d73ea0 2626 struct sockstat s = {};
aba5acdf 2627
486ccd99
VK		 2628 if (!(diag_arg->f->families & (1 << r->idiag_family)))
2629 return 0;
82d73ea0
DA		 2630
2631 parse_diag_msg(h, &s);
2632
2633 if (diag_arg->f->f && run_ssfilter(diag_arg->f->f, &s) == 0)
2634 return 0;
2635
41fe6c34 2636 if (diag_arg->f->kill && kill_inet_sock(h, arg, &s) != 0) {
fb2594c1
LC		 2637 if (errno == EOPNOTSUPP || errno == ENOENT) {
2638 /* Socket can't be closed, or is already closed. */
2639 return 0;
2640 } else {
2641 perror("SOCK_DESTROY answers");
2642 return -1;
2643 }
2644 }
82d73ea0
DA		 2645
2646 err = inet_show_sock(h, &s, diag_arg->protocol);
2647 if (err < 0)
486ccd99 2648 return err;
aba5acdf 2649
486ccd99
VK		 2650 return 0;
2651}
886d19d6 2652
486ccd99
VK		 2653static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol)
2654{
2655 int err = 0;
fb2594c1 2656 struct rtnl_handle rth, rth2;
486ccd99
VK		 2657 int family = PF_INET;
2658 struct inet_diag_arg arg = { .f = f, .protocol = protocol };
886d19d6 2659
486ccd99
VK		 2660 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
2661 return -1;
fb2594c1
LC		 2662
2663 if (f->kill) {
2664 if (rtnl_open_byproto(&rth2, 0, NETLINK_SOCK_DIAG)) {
2665 rtnl_close(&rth);
2666 return -1;
2667 }
2668 arg.rth = &rth2;
2669 }
2670
486ccd99
VK		 2671 rth.dump = MAGIC_SEQ;
2672 rth.dump_fp = dump_fp;
518af1e0
ED		 2673 if (preferred_family == PF_INET6)
2674 family = PF_INET6;
886d19d6 2675
486ccd99
VK		 2676again:
2677 if ((err = sockdiag_send(family, rth.fd, protocol, f)))
2678 goto Exit;
aba5acdf 2679
486ccd99
VK		 2680 if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) {
2681 if (family != PF_UNSPEC) {
2682 family = PF_UNSPEC;
2683 goto again;
aba5acdf 2684 }
486ccd99 2685 goto Exit;
aba5acdf 2686 }
518af1e0 2687 if (family == PF_INET && preferred_family != PF_INET) {
886d19d6
PE		 2688 family = PF_INET6;
2689 goto again;
2690 }
2691
486ccd99
VK		 2692Exit:
2693 rtnl_close(&rth);
fb2594c1
LC		 2694 if (arg.rth)
2695 rtnl_close(arg.rth);
486ccd99 2696 return err;
aba5acdf
SH		 2697}
2698
ab01dbbb 2699static int tcp_show_netlink_file(struct filter *f)
aba5acdf
SH		 2700{
2701 FILE *fp;
e557212e 2702 char buf[16384];
aba5acdf
SH		 2703
2704 if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) {
2705 perror("fopen($TCPDIAG_FILE)");
2706 return -1;
2707 }
2708
2709 while (1) {
2710 int status, err;
acd1e437 2711 struct nlmsghdr *h = (struct nlmsghdr *)buf;
82d73ea0 2712 struct sockstat s = {};
aba5acdf
SH		 2713
2714 status = fread(buf, 1, sizeof(*h), fp);
2715 if (status < 0) {
2716 perror("Reading header from $TCPDIAG_FILE");
2717 return -1;
2718 }
2719 if (status != sizeof(*h)) {
2720 perror("Unexpected EOF reading $TCPDIAG_FILE");
2721 return -1;
2722 }
2723
2724 status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp);
2725
2726 if (status < 0) {
2727 perror("Reading $TCPDIAG_FILE");
2728 return -1;
2729 }
2730 if (status + sizeof(*h) < h->nlmsg_len) {
2731 perror("Unexpected EOF reading $TCPDIAG_FILE");
2732 return -1;
2733 }
2734
2735 /* The only legal exit point */
2736 if (h->nlmsg_type == NLMSG_DONE)
2737 return 0;
2738
2739 if (h->nlmsg_type == NLMSG_ERROR) {
acd1e437
SH		 2740 struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h);
2741
aba5acdf
SH		 2742 if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
2743 fprintf(stderr, "ERROR truncated\n");
2744 } else {
2745 errno = -err->error;
2746 perror("TCPDIAG answered");
2747 }
2748 return -1;
2749 }
2750
82d73ea0
DA		 2751 parse_diag_msg(h, &s);
2752
2753 if (f && f->f && run_ssfilter(f->f, &s) == 0)
2754 continue;
2755
2756 err = inet_show_sock(h, &s, IPPROTO_TCP);
aba5acdf
SH		 2757 if (err < 0)
2758 return err;
2759 }
2760}
2761
ab01dbbb 2762static int tcp_show(struct filter *f, int socktype)
aba5acdf 2763{
ab01dbbb 2764 FILE *fp = NULL;
aba5acdf
SH		 2765 char *buf = NULL;
2766 int bufsize = 64*1024;
2767
1527a17e
VK		 2768 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2769 return 0;
2770
aba5acdf
SH		 2771 dg_proto = TCP_PROTO;
2772
2773 if (getenv("TCPDIAG_FILE"))
2774 return tcp_show_netlink_file(f);
2775
2776 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
3fe5b534 2777 && inet_show_netlink(f, NULL, socktype) == 0)
aba5acdf
SH		 2778 return 0;
2779
2780 /* Sigh... We have to parse /proc/net/tcp... */
2781
ab01dbbb 2782
aba5acdf
SH		 2783 /* Estimate amount of sockets and try to allocate
2784 * huge buffer to read all the table at one read.
2785 * Limit it by 16MB though. The assumption is: as soon as
2786 * kernel was able to hold information about N connections,
2787 * it is able to give us some memory for snapshot.
2788 */
2789 if (1) {
a221d621
BL		 2790 get_slabstat(&slabstat);
2791
aba5acdf 2792 int guess = slabstat.socks+slabstat.tcp_syns;
acd1e437 2793
aba5acdf
SH		 2794 if (f->states&(1<<SS_TIME_WAIT))
2795 guess += slabstat.tcp_tws;
2796 if (guess > (16*1024*1024)/128)
2797 guess = (16*1024*1024)/128;
2798 guess *= 128;
2799 if (guess > bufsize)
2800 bufsize = guess;
2801 }
2802 while (bufsize >= 64*1024) {
2803 if ((buf = malloc(bufsize)) != NULL)
2804 break;
2805 bufsize /= 2;
2806 }
2807 if (buf == NULL) {
2808 errno = ENOMEM;
2809 return -1;
2810 }
2811
2812 if (f->families & (1<<AF_INET)) {
69cae645 2813 if ((fp = net_tcp_open()) == NULL)
aba5acdf 2814 goto outerr;
ab01dbbb
SH		 2815
2816 setbuffer(fp, buf, bufsize);
2817 if (generic_record_read(fp, tcp_show_line, f, AF_INET))
aba5acdf 2818 goto outerr;
ab01dbbb 2819 fclose(fp);
aba5acdf
SH		 2820 }
2821
2822 if ((f->families & (1<<AF_INET6)) &&
69cae645 2823 (fp = net_tcp6_open()) != NULL) {
ab01dbbb
SH		 2824 setbuffer(fp, buf, bufsize);
2825 if (generic_record_read(fp, tcp_show_line, f, AF_INET6))
aba5acdf 2826 goto outerr;
ab01dbbb 2827 fclose(fp);
aba5acdf
SH		 2828 }
2829
2830 free(buf);
2831 return 0;
2832
2833outerr:
2834 do {
2835 int saved_errno = errno;
acd1e437 2836
92de1c2c 2837 free(buf);
ab01dbbb
SH		 2838 if (fp)
2839 fclose(fp);
aba5acdf
SH		 2840 errno = saved_errno;
2841 return -1;
2842 } while (0);
2843}
2844
f89d46ad
PS		 2845static int sctp_show(struct filter *f)
2846{
2847 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2848 return 0;
2849
2850 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
2851 && inet_show_netlink(f, NULL, IPPROTO_SCTP) == 0)
2852 return 0;
2853
2854 return 0;
2855}
aba5acdf 2856
d1f28cf1 2857static int dgram_show_line(char *line, const struct filter *f, int family)
aba5acdf 2858{
055840f2 2859 struct sockstat s = {};
aba5acdf
SH		 2860 char *loc, *rem, *data;
2861 char opt[256];
2862 int n;
aba5acdf 2863
8250bc9f 2864 if (proc_inet_split_line(line, &loc, &rem, &data))
aba5acdf 2865 return -1;
aba5acdf 2866
8250bc9f 2867 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2868
8250bc9f
VK		 2869 if (!(f->states & (1 << state)))
2870 return 0;
aba5acdf 2871
8250bc9f 2872 proc_parse_inet_addr(loc, rem, family, &s);
aba5acdf
SH		 2873
2874 if (f->f && run_ssfilter(f->f, &s) == 0)
2875 return 0;
2876
2877 opt[0] = 0;
e7113c61 2878 n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
aba5acdf
SH		 2879 &s.state, &s.wq, &s.rq,
2880 &s.uid, &s.ino,
2881 &s.refcnt, &s.sk, opt);
2882
2883 if (n < 9)
2884 opt[0] = 0;
2885
235c4453 2886 inet_stats_print(&s, dg_proto == UDP_PROTO ? IPPROTO_UDP : 0);
aba5acdf 2887
f1b39e1b
VK		 2888 if (show_details && opt[0])
2889 printf(" opt:\"%s\"", opt);
aba5acdf 2890
8250bc9f 2891 printf("\n");
aba5acdf
SH		 2892 return 0;
2893}
2894
d1f28cf1 2895static int udp_show(struct filter *f)
aba5acdf 2896{
ab01dbbb 2897 FILE *fp = NULL;
aba5acdf 2898
1527a17e
VK		 2899 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2900 return 0;
2901
ace5cb31
VK		 2902 dg_proto = UDP_PROTO;
2903
346f8ca8
PE		 2904 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
2905 && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0)
2906 return 0;
2907
aba5acdf 2908 if (f->families&(1<<AF_INET)) {
69cae645 2909 if ((fp = net_udp_open()) == NULL)
aba5acdf 2910 goto outerr;
ab01dbbb 2911 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2912 goto outerr;
ab01dbbb 2913 fclose(fp);
aba5acdf
SH		 2914 }
2915
2916 if ((f->families&(1<<AF_INET6)) &&
69cae645 2917 (fp = net_udp6_open()) != NULL) {
ab01dbbb 2918 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2919 goto outerr;
ab01dbbb 2920 fclose(fp);
aba5acdf
SH		 2921 }
2922 return 0;
2923
2924outerr:
2925 do {
2926 int saved_errno = errno;
acd1e437 2927
ab01dbbb
SH		 2928 if (fp)
2929 fclose(fp);
aba5acdf
SH		 2930 errno = saved_errno;
2931 return -1;
2932 } while (0);
2933}
2934
d1f28cf1 2935static int raw_show(struct filter *f)
aba5acdf 2936{
ab01dbbb 2937 FILE *fp = NULL;
aba5acdf 2938
1527a17e
VK		 2939 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
2940 return 0;
2941
aba5acdf
SH		 2942 dg_proto = RAW_PROTO;
2943
41fe6c34
CG		 2944 if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") &&
2945 inet_show_netlink(f, NULL, IPPROTO_RAW) == 0)
2946 return 0;
2947
aba5acdf 2948 if (f->families&(1<<AF_INET)) {
69cae645 2949 if ((fp = net_raw_open()) == NULL)
aba5acdf 2950 goto outerr;
ab01dbbb 2951 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 2952 goto outerr;
ab01dbbb 2953 fclose(fp);
aba5acdf
SH		 2954 }
2955
2956 if ((f->families&(1<<AF_INET6)) &&
69cae645 2957 (fp = net_raw6_open()) != NULL) {
ab01dbbb 2958 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 2959 goto outerr;
ab01dbbb 2960 fclose(fp);
aba5acdf
SH		 2961 }
2962 return 0;
2963
2964outerr:
2965 do {
2966 int saved_errno = errno;
acd1e437 2967
ab01dbbb
SH		 2968 if (fp)
2969 fclose(fp);
aba5acdf
SH		 2970 errno = saved_errno;
2971 return -1;
2972 } while (0);
2973}
2974
aba5acdf
SH		 2975int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT,
2976 SS_ESTABLISHED, SS_CLOSING };
2977
ec4d0d8a 2978#define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
aba5acdf 2979
ec4d0d8a 2980static void unix_list_free(struct sockstat *list)
aba5acdf
SH		 2981{
2982 while (list) {
ec4d0d8a 2983 struct sockstat *s = list;
ec4d0d8a 2984
aba5acdf 2985 list = list->next;
99bb68ff 2986 free(s->name);
aba5acdf
SH		 2987 free(s);
2988 }
2989}
2990
30b669d7
MY		 2991static const char *unix_netid_name(int type)
2992{
2993 const char *netid;
2994
2995 switch (type) {
2996 case SOCK_STREAM:
2997 netid = "u_str";
2998 break;
2999 case SOCK_SEQPACKET:
3000 netid = "u_seq";
3001 break;
3002 case SOCK_DGRAM:
3003 default:
3004 netid = "u_dgr";
3005 break;
3006 }
3007 return netid;
3008}
3009
ec4d0d8a 3010static bool unix_type_skip(struct sockstat *s, struct filter *f)
bf4ceee6
VK		 3011{
3012 if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
3013 return true;
3014 if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
3015 return true;
3016 if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
3017 return true;
3018 return false;
3019}
3020
ec4d0d8a
VK		 3021static bool unix_use_proc(void)
3022{
3023 return getenv("PROC_NET_UNIX") || getenv("PROC_ROOT");
3024}
3025
3026static void unix_stats_print(struct sockstat *list, struct filter *f)
aba5acdf 3027{
ec4d0d8a 3028 struct sockstat *s;
99bb68ff 3029 char *peer;
b217df10 3030 char *ctx_buf = NULL;
ec4d0d8a 3031 bool use_proc = unix_use_proc();
b217df10 3032 char port_name[30] = {};
aba5acdf
SH		 3033
3034 for (s = list; s; s = s->next) {
ec4d0d8a 3035 if (!(f->states & (1 << s->state)))
aba5acdf 3036 continue;
bf4ceee6 3037 if (unix_type_skip(s, f))
30b669d7 3038 continue;
aba5acdf 3039
99bb68ff
VK		 3040 peer = "*";
3041 if (s->peer_name)
3042 peer = s->peer_name;
ec4d0d8a
VK		 3043
3044 if (s->rport && use_proc) {
3045 struct sockstat *p;
bf4ceee6 3046
aba5acdf 3047 for (p = list; p; p = p->next) {
ec4d0d8a 3048 if (s->rport == p->lport)
aba5acdf
SH		 3049 break;
3050 }
ec4d0d8a 3051
aba5acdf
SH		 3052 if (!p) {
3053 peer = "?";
3054 } else {
99bb68ff 3055 peer = p->name ? : "*";
aba5acdf
SH		 3056 }
3057 }
3058
29999b0f 3059 if (use_proc && f->f) {
d17b136f
PS		 3060 struct sockstat st = {
3061 .local.family = AF_UNIX,
3062 .remote.family = AF_UNIX,
3063 };
acd1e437 3064
99bb68ff 3065 memcpy(st.local.data, &s->name, sizeof(s->name));
d17b136f 3066 if (strcmp(peer, "*"))
99bb68ff
VK		 3067 memcpy(st.remote.data, &peer, sizeof(peer));
3068 if (run_ssfilter(f->f, &st) == 0)
aba5acdf
SH		 3069 continue;
3070 }
3071
2d791bc8
VK		 3072 sock_state_print(s, unix_netid_name(s->type));
3073
99bb68ff 3074 sock_addr_print(s->name ?: "*", " ",
b217df10
VK		 3075 int_to_str(s->lport, port_name), NULL);
3076 sock_addr_print(peer, " ", int_to_str(s->rport, port_name),
3077 NULL);
116ac927
RH		 3078
3079 if (show_proc_ctx || show_sock_ctx) {
b217df10 3080 if (find_entry(s->ino, &ctx_buf,
116ac927
RH		 3081 (show_proc_ctx & show_sock_ctx) ?
3082 PROC_SOCK_CTX : PROC_CTX) > 0) {
b217df10
VK		 3083 printf(" users:(%s)", ctx_buf);
3084 free(ctx_buf);
116ac927
RH		 3085 }
3086 } else if (show_users) {
b217df10
VK		 3087 if (find_entry(s->ino, &ctx_buf, USERS) > 0) {
3088 printf(" users:(%s)", ctx_buf);
3089 free(ctx_buf);
116ac927 3090 }
aba5acdf
SH		 3091 }
3092 printf("\n");
3093 }
3094}
3095
8a4025f6 3096static int unix_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh,
3097 void *arg)
dfbaa90d 3098{
8a4025f6 3099 struct filter *f = (struct filter *)arg;
dfbaa90d
PE		 3100 struct unix_diag_msg *r = NLMSG_DATA(nlh);
3101 struct rtattr *tb[UNIX_DIAG_MAX+1];
99bb68ff
VK		 3102 char name[128];
3103 struct sockstat stat = { .name = "*", .peer_name = "*" };
dfbaa90d 3104
acd1e437 3105 parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr *)(r+1),
dfbaa90d
PE		 3106 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3107
bf4ceee6
VK		 3108 stat.type = r->udiag_type;
3109 stat.state = r->udiag_state;
ec4d0d8a
VK		 3110 stat.ino = stat.lport = r->udiag_ino;
3111 stat.local.family = stat.remote.family = AF_UNIX;
0d2e01c5 3112
bf4ceee6
VK		 3113 if (unix_type_skip(&stat, f))
3114 return 0;
dfbaa90d 3115
defd61ca
HFS		 3116 if (tb[UNIX_DIAG_RQLEN]) {
3117 struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]);
acd1e437 3118
bf4ceee6
VK		 3119 stat.rq = rql->udiag_rqueue;
3120 stat.wq = rql->udiag_wqueue;
defd61ca 3121 }
dfbaa90d
PE		 3122 if (tb[UNIX_DIAG_NAME]) {
3123 int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
3124
3125 memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
3126 name[len] = '\0';
3127 if (name[0] == '\0')
878dadc7
IB		 3128 for (int i = 0; i < len; i++)
3129 if (name[i] == '\0')
3130 name[i] = '@';
99bb68ff
VK		 3131 stat.name = &name[0];
3132 memcpy(stat.local.data, &stat.name, sizeof(stat.name));
bf4ceee6 3133 }
dfbaa90d 3134 if (tb[UNIX_DIAG_PEER])
ec4d0d8a 3135 stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]);
dfbaa90d 3136
29999b0f
VK		 3137 if (f->f && run_ssfilter(f->f, &stat) == 0)
3138 return 0;
3139
bf4ceee6 3140 unix_stats_print(&stat, f);
dfbaa90d 3141
45199997 3142 if (show_mem || show_details)
bf4ceee6 3143 printf("\t");
45199997 3144 if (show_mem)
51ff9f24 3145 print_skmeminfo(tb, UNIX_DIAG_MEMINFO);
5b816047
PE		 3146 if (show_details) {
3147 if (tb[UNIX_DIAG_SHUTDOWN]) {
3148 unsigned char mask;
acd1e437 3149
5b816047
PE		 3150 mask = *(__u8 *)RTA_DATA(tb[UNIX_DIAG_SHUTDOWN]);
3151 printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
3152 }
3153 }
bf4ceee6
VK		 3154 if (show_mem || show_details)
3155 printf("\n");
ec4d0d8a 3156
dfbaa90d
PE		 3157 return 0;
3158}
3159
8a4025f6 3160static int handle_netlink_request(struct filter *f, struct nlmsghdr *req,
3161 size_t size, rtnl_filter_t show_one_sock)
dfbaa90d 3162{
8a4025f6 3163 int ret = -1;
3164 struct rtnl_handle rth;
dfbaa90d 3165
8a4025f6 3166 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
dfbaa90d
PE		 3167 return -1;
3168
8a4025f6 3169 rth.dump = MAGIC_SEQ;
dfbaa90d 3170
8a4025f6 3171 if (rtnl_send(&rth, req, size) < 0)
3172 goto Exit;
dfbaa90d 3173
8a4025f6 3174 if (rtnl_dump_filter(&rth, show_one_sock, f))
3175 goto Exit;
dfbaa90d 3176
8a4025f6 3177 ret = 0;
3178Exit:
3179 rtnl_close(&rth);
3180 return ret;
dfbaa90d
PE		 3181}
3182
8a4025f6 3183static int unix_show_netlink(struct filter *f)
d8402b96 3184{
5fb421d4 3185 DIAG_REQUEST(req, struct unix_diag_req r);
d8402b96
AV		 3186
3187 req.r.sdiag_family = AF_UNIX;
3188 req.r.udiag_states = f->states;
3189 req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
3190 if (show_mem)
3191 req.r.udiag_show |= UDIAG_SHOW_MEMINFO;
3192
8a4025f6 3193 return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock);
d8402b96
AV		 3194}
3195
d1f28cf1 3196static int unix_show(struct filter *f)
aba5acdf
SH		 3197{
3198 FILE *fp;
3199 char buf[256];
3200 char name[128];
3201 int newformat = 0;
3202 int cnt;
ec4d0d8a 3203 struct sockstat *list = NULL;
aba5acdf 3204
9db7bf15
VK		 3205 if (!filter_af_get(f, AF_UNIX))
3206 return 0;
3207
ec4d0d8a 3208 if (!unix_use_proc() && unix_show_netlink(f) == 0)
dfbaa90d
PE		 3209 return 0;
3210
ab01dbbb 3211 if ((fp = net_unix_open()) == NULL)
aba5acdf 3212 return -1;
61170fd8 3213 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3214 fclose(fp);
3215 return -1;
3216 }
aba5acdf 3217
ae665a52 3218 if (memcmp(buf, "Peer", 4) == 0)
aba5acdf
SH		 3219 newformat = 1;
3220 cnt = 0;
3221
61170fd8 3222 while (fgets(buf, sizeof(buf), fp)) {
ec4d0d8a 3223 struct sockstat *u, **insp;
aba5acdf
SH		 3224 int flags;
3225
0ee9052f 3226 if (!(u = calloc(1, sizeof(*u))))
aba5acdf 3227 break;
99bb68ff
VK		 3228 u->name = NULL;
3229 u->peer_name = NULL;
aba5acdf
SH		 3230
3231 if (sscanf(buf, "%x: %x %x %x %x %x %d %s",
ec4d0d8a 3232 &u->rport, &u->rq, &u->wq, &flags, &u->type,
aba5acdf
SH		 3233 &u->state, &u->ino, name) < 8)
3234 name[0] = 0;
3235
ec4d0d8a
VK		 3236 u->lport = u->ino;
3237 u->local.family = u->remote.family = AF_UNIX;
3238
3239 if (flags & (1 << 16)) {
aba5acdf
SH		 3240 u->state = SS_LISTEN;
3241 } else {
3242 u->state = unix_state_map[u->state-1];
ec4d0d8a 3243 if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport)
aba5acdf
SH		 3244 u->state = SS_ESTABLISHED;
3245 }
3246
3247 if (!newformat) {
ec4d0d8a 3248 u->rport = 0;
aba5acdf
SH		 3249 u->rq = 0;
3250 u->wq = 0;
3251 }
3252
3253 insp = &list;
3254 while (*insp) {
3255 if (u->type < (*insp)->type ||
3256 (u->type == (*insp)->type &&
3257 u->ino < (*insp)->ino))
3258 break;
3259 insp = &(*insp)->next;
3260 }
3261 u->next = *insp;
3262 *insp = u;
3263
3264 if (name[0]) {
99bb68ff
VK		 3265 if ((u->name = malloc(strlen(name)+1)) == NULL)
3266 break;
3267 strcpy(u->name, name);
aba5acdf
SH		 3268 }
3269 if (++cnt > MAX_UNIX_REMEMBER) {
bf4ceee6 3270 unix_stats_print(list, f);
aba5acdf
SH		 3271 unix_list_free(list);
3272 list = NULL;
3273 cnt = 0;
3274 }
3275 }
a3fd8e58 3276 fclose(fp);
aba5acdf 3277 if (list) {
bf4ceee6 3278 unix_stats_print(list, f);
aba5acdf
SH		 3279 unix_list_free(list);
3280 list = NULL;
3281 cnt = 0;
3282 }
3283
3284 return 0;
3285}
3286
89f634f9 3287static int packet_stats_print(struct sockstat *s, const struct filter *f)
4a0053b6
VK		 3288{
3289 char *buf = NULL;
b217df10
VK		 3290 const char *addr, *port;
3291 char ll_name[16];
372c30d2 3292
4a0053b6 3293 if (f->f) {
89f634f9
VK		 3294 s->local.family = AF_PACKET;
3295 s->remote.family = AF_PACKET;
89f634f9 3296 s->local.data[0] = s->prot;
89f634f9 3297 if (run_ssfilter(f->f, s) == 0)
4a0053b6
VK		 3298 return 1;
3299 }
372c30d2 3300
2d791bc8 3301 sock_state_print(s, s->type == SOCK_RAW ? "p_raw" : "p_dgr");
372c30d2 3302
b217df10
VK		 3303 if (s->prot == 3)
3304 addr = "*";
3305 else
3306 addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name));
3307
3308 if (s->iface == 0)
3309 port = "*";
3310 else
3311 port = xll_index_to_name(s->iface);
372c30d2 3312
b217df10
VK		 3313 sock_addr_print(addr, ":", port, NULL);
3314 sock_addr_print("", "*", "", NULL);
116ac927
RH		 3315
3316 if (show_proc_ctx || show_sock_ctx) {
4a0053b6
VK		 3317 if (find_entry(s->ino, &buf,
3318 (show_proc_ctx & show_sock_ctx) ?
3319 PROC_SOCK_CTX : PROC_CTX) > 0) {
116ac927
RH		 3320 printf(" users:(%s)", buf);
3321 free(buf);
3322 }
3323 } else if (show_users) {
4a0053b6 3324 if (find_entry(s->ino, &buf, USERS) > 0) {
116ac927
RH		 3325 printf(" users:(%s)", buf);
3326 free(buf);
3327 }
372c30d2 3328 }
116ac927 3329
f1b39e1b
VK		 3330 if (show_details)
3331 sock_details_print(s);
3332
4a0053b6
VK		 3333 return 0;
3334}
3335
2631b856
VK		 3336static void packet_show_ring(struct packet_diag_ring *ring)
3337{
3338 printf("blk_size:%d", ring->pdr_block_size);
3339 printf(",blk_nr:%d", ring->pdr_block_nr);
3340 printf(",frm_size:%d", ring->pdr_frame_size);
3341 printf(",frm_nr:%d", ring->pdr_frame_nr);
3342 printf(",tmo:%d", ring->pdr_retire_tmo);
3343 printf(",features:0x%x", ring->pdr_features);
3344}
3345
4a0053b6
VK		 3346static int packet_show_sock(const struct sockaddr_nl *addr,
3347 struct nlmsghdr *nlh, void *arg)
3348{
3349 const struct filter *f = arg;
3350 struct packet_diag_msg *r = NLMSG_DATA(nlh);
2631b856
VK		 3351 struct packet_diag_info *pinfo = NULL;
3352 struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL;
4a0053b6 3353 struct rtattr *tb[PACKET_DIAG_MAX+1];
89f634f9 3354 struct sockstat stat = {};
2631b856
VK		 3355 uint32_t fanout = 0;
3356 bool has_fanout = false;
4a0053b6 3357
acd1e437 3358 parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr *)(r+1),
4a0053b6
VK		 3359 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3360
3361 /* use /proc/net/packet if all info are not available */
3362 if (!tb[PACKET_DIAG_MEMINFO])
3363 return -1;
3364
2d791bc8
VK		 3365 stat.type = r->pdiag_type;
3366 stat.prot = r->pdiag_num;
3367 stat.ino = r->pdiag_ino;
3368 stat.state = SS_CLOSE;
f1b39e1b 3369 stat.sk = cookie_sk_get(&r->pdiag_cookie[0]);
4a0053b6
VK		 3370
3371 if (tb[PACKET_DIAG_MEMINFO]) {
3372 __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]);
acd1e437 3373
4a0053b6
VK		 3374 stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3375 }
3376
3377 if (tb[PACKET_DIAG_INFO]) {
2631b856 3378 pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
2d791bc8 3379 stat.lport = stat.iface = pinfo->pdi_index;
4a0053b6
VK		 3380 }
3381
f1b39e1b
VK		 3382 if (tb[PACKET_DIAG_UID])
3383 stat.uid = *(__u32 *)RTA_DATA(tb[PACKET_DIAG_UID]);
3384
2631b856
VK		 3385 if (tb[PACKET_DIAG_RX_RING])
3386 ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]);
3387
3388 if (tb[PACKET_DIAG_TX_RING])
3389 ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]);
3390
3391 if (tb[PACKET_DIAG_FANOUT]) {
3392 has_fanout = true;
3393 fanout = *(uint32_t *)RTA_DATA(tb[PACKET_DIAG_FANOUT]);
3394 }
3395
4a0053b6
VK		 3396 if (packet_stats_print(&stat, f))
3397 return 0;
3398
2631b856
VK		 3399 if (show_details) {
3400 if (pinfo) {
3401 printf("\n\tver:%d", pinfo->pdi_version);
3402 printf(" cpy_thresh:%d", pinfo->pdi_copy_thresh);
3403 printf(" flags( ");
3404 if (pinfo->pdi_flags & PDI_RUNNING)
3405 printf("running");
3406 if (pinfo->pdi_flags & PDI_AUXDATA)
3407 printf(" auxdata");
3408 if (pinfo->pdi_flags & PDI_ORIGDEV)
3409 printf(" origdev");
3410 if (pinfo->pdi_flags & PDI_VNETHDR)
3411 printf(" vnethdr");
3412 if (pinfo->pdi_flags & PDI_LOSS)
3413 printf(" loss");
3414 if (!pinfo->pdi_flags)
3415 printf("0");
3416 printf(" )");
3417 }
3418 if (ring_rx) {
3419 printf("\n\tring_rx(");
3420 packet_show_ring(ring_rx);
3421 printf(")");
3422 }
3423 if (ring_tx) {
3424 printf("\n\tring_tx(");
3425 packet_show_ring(ring_tx);
3426 printf(")");
3427 }
3428 if (has_fanout) {
3429 uint16_t type = (fanout >> 16) & 0xffff;
3430
3431 printf("\n\tfanout(");
3432 printf("id:%d,", fanout & 0xffff);
3433 printf("type:");
3434
3435 if (type == 0)
3436 printf("hash");
3437 else if (type == 1)
3438 printf("lb");
3439 else if (type == 2)
3440 printf("cpu");
3441 else if (type == 3)
3442 printf("roll");
3443 else if (type == 4)
3444 printf("random");
3445 else if (type == 5)
3446 printf("qm");
3447 else
3448 printf("0x%x", type);
3449
3450 printf(")");
3451 }
3452 }
3453
372c30d2
ND		 3454 if (show_bpf && tb[PACKET_DIAG_FILTER]) {
3455 struct sock_filter *fil =
3456 RTA_DATA(tb[PACKET_DIAG_FILTER]);
3457 int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) /
3458 sizeof(struct sock_filter);
3459
3460 printf("\n\tbpf filter (%d): ", num);
3461 while (num) {
3462 printf(" 0x%02x %u %u %u,",
3463 fil->code, fil->jt, fil->jf, fil->k);
3464 num--;
3465 fil++;
3466 }
3467 }
3468 printf("\n");
3469 return 0;
3470}
3471
8a4025f6 3472static int packet_show_netlink(struct filter *f)
372c30d2 3473{
5fb421d4 3474 DIAG_REQUEST(req, struct packet_diag_req r);
372c30d2 3475
372c30d2 3476 req.r.sdiag_family = AF_PACKET;
2631b856
VK		 3477 req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO |
3478 PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT;
372c30d2 3479
8a4025f6 3480 return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock);
372c30d2
ND		 3481}
3482
4a0053b6
VK		 3483static int packet_show_line(char *buf, const struct filter *f, int fam)
3484{
3485 unsigned long long sk;
89f634f9 3486 struct sockstat stat = {};
4a0053b6
VK		 3487 int type, prot, iface, state, rq, uid, ino;
3488
3489 sscanf(buf, "%llx %*d %d %x %d %d %u %u %u",
3490 &sk,
3491 &type, &prot, &iface, &state,
3492 &rq, &uid, &ino);
3493
3494 if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB)))
3495 return 0;
3496 if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB)))
3497 return 0;
3498
3499 stat.type = type;
3500 stat.prot = prot;
2d791bc8 3501 stat.lport = stat.iface = iface;
4a0053b6
VK		 3502 stat.state = state;
3503 stat.rq = rq;
3504 stat.uid = uid;
3505 stat.ino = ino;
2d791bc8
VK		 3506 stat.state = SS_CLOSE;
3507
4a0053b6
VK		 3508 if (packet_stats_print(&stat, f))
3509 return 0;
3510
4a0053b6
VK		 3511 printf("\n");
3512 return 0;
3513}
aba5acdf 3514
d1f28cf1 3515static int packet_show(struct filter *f)
aba5acdf
SH		 3516{
3517 FILE *fp;
b95d28c3 3518 int rc = 0;
3d0b7439 3519
9db7bf15 3520 if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE)))
b9ea445d 3521 return 0;
aba5acdf 3522
4a0053b6
VK		 3523 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
3524 packet_show_netlink(f) == 0)
372c30d2
ND		 3525 return 0;
3526
ab01dbbb 3527 if ((fp = net_packet_open()) == NULL)
aba5acdf 3528 return -1;
4a0053b6 3529 if (generic_record_read(fp, packet_show_line, f, AF_PACKET))
b95d28c3 3530 rc = -1;
aba5acdf 3531
b95d28c3
PS		 3532 fclose(fp);
3533 return rc;
aba5acdf
SH		 3534}
3535
5f24ec0e 3536static int netlink_show_one(struct filter *f,
acd1e437
SH		 3537 int prot, int pid, unsigned int groups,
3538 int state, int dst_pid, unsigned int dst_group,
129709ae
AV		 3539 int rq, int wq,
3540 unsigned long long sk, unsigned long long cb)
3541{
2d791bc8 3542 struct sockstat st;
acd1e437 3543
b217df10
VK		 3544 SPRINT_BUF(prot_buf) = {};
3545 const char *prot_name;
3546 char procname[64] = {};
eef43b50 3547
2d791bc8
VK		 3548 st.state = SS_CLOSE;
3549 st.rq = rq;
3550 st.wq = wq;
3551
129709ae 3552 if (f->f) {
055840f2
VK		 3553 st.local.family = AF_NETLINK;
3554 st.remote.family = AF_NETLINK;
3555 st.rport = -1;
3556 st.lport = pid;
3557 st.local.data[0] = prot;
055840f2 3558 if (run_ssfilter(f->f, &st) == 0)
5f24ec0e 3559 return 1;
129709ae
AV		 3560 }
3561
2d791bc8 3562 sock_state_print(&st, "nl");
eef43b50 3563
b217df10
VK		 3564 if (resolve_services)
3565 prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf));
3566 else
3567 prot_name = int_to_str(prot, prot_buf);
eef43b50 3568
129709ae 3569 if (pid == -1) {
b217df10 3570 procname[0] = '*';
129709ae
AV		 3571 } else if (resolve_services) {
3572 int done = 0;
acd1e437 3573
129709ae
AV		 3574 if (!pid) {
3575 done = 1;
b217df10 3576 strncpy(procname, "kernel", 6);
129709ae 3577 } else if (pid > 0) {
129709ae 3578 FILE *fp;
acd1e437 3579
0ee9052f 3580 snprintf(procname, sizeof(procname), "%s/%d/stat",
129709ae
AV		 3581 getenv("PROC_ROOT") ? : "/proc", pid);
3582 if ((fp = fopen(procname, "r")) != NULL) {
3583 if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
0ee9052f 3584 snprintf(procname+strlen(procname),
3585 sizeof(procname)-strlen(procname),
3586 "/%d", pid);
129709ae
AV		 3587 done = 1;
3588 }
3589 fclose(fp);
3590 }
3591 }
3592 if (!done)
b217df10 3593 int_to_str(pid, procname);
129709ae 3594 } else {
b217df10 3595 int_to_str(pid, procname);
129709ae 3596 }
f271fe01 3597
b217df10
VK		 3598 sock_addr_print(prot_name, ":", procname, NULL);
3599
f271fe01 3600 if (state == NETLINK_CONNECTED) {
b217df10
VK		 3601 char dst_group_buf[30];
3602 char dst_pid_buf[30];
acd1e437 3603
b217df10
VK		 3604 sock_addr_print(int_to_str(dst_group, dst_group_buf), ":",
3605 int_to_str(dst_pid, dst_pid_buf), NULL);
f271fe01 3606 } else {
b217df10 3607 sock_addr_print("", "*", "", NULL);
f271fe01 3608 }
129709ae 3609
116ac927 3610 char *pid_context = NULL;
acd1e437 3611
116ac927
RH		 3612 if (show_proc_ctx) {
3613 /* The pid value will either be:
3614 * 0 if destination kernel - show kernel initial context.
3615 * A valid process pid - use getpidcon.
3616 * A unique value allocated by the kernel or netlink user
3617 * to the process - show context as "not available".
3618 */
3619 if (!pid)
3620 security_get_initial_context("kernel", &pid_context);
3621 else if (pid > 0)
3622 getpidcon(pid, &pid_context);
3623
3624 if (pid_context != NULL) {
3625 printf("proc_ctx=%-*s ", serv_width, pid_context);
3626 free(pid_context);
3627 } else {
3628 printf("proc_ctx=%-*s ", serv_width, "unavailable");
3629 }
3630 }
3631
129709ae
AV		 3632 if (show_details) {
3633 printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups);
3634 }
3635 printf("\n");
3636
5f24ec0e 3637 return 0;
129709ae
AV		 3638}
3639
8a4025f6 3640static int netlink_show_sock(const struct sockaddr_nl *addr,
3641 struct nlmsghdr *nlh, void *arg)
ecb928c8 3642{
8a4025f6 3643 struct filter *f = (struct filter *)arg;
ecb928c8
AV		 3644 struct netlink_diag_msg *r = NLMSG_DATA(nlh);
3645 struct rtattr *tb[NETLINK_DIAG_MAX+1];
3646 int rq = 0, wq = 0;
3647 unsigned long groups = 0;
3648
acd1e437 3649 parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr *)(r+1),
ecb928c8
AV		 3650 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3651
3652 if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS]))
3653 groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]);
3654
3655 if (tb[NETLINK_DIAG_MEMINFO]) {
3656 const __u32 *skmeminfo;
acd1e437 3657
ecb928c8
AV		 3658 skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]);
3659
3660 rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3661 wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC];
3662 }
3663
5f24ec0e 3664 if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups,
ecb928c8 3665 r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group,
5f24ec0e
VK		 3666 rq, wq, 0, 0)) {
3667 return 0;
3668 }
ecb928c8
AV		 3669
3670 if (show_mem) {
3671 printf("\t");
3672 print_skmeminfo(tb, NETLINK_DIAG_MEMINFO);
3673 printf("\n");
3674 }
3675
3676 return 0;
3677}
3678
8a4025f6 3679static int netlink_show_netlink(struct filter *f)
ecb928c8 3680{
5fb421d4 3681 DIAG_REQUEST(req, struct netlink_diag_req r);
ecb928c8
AV		 3682
3683 req.r.sdiag_family = AF_NETLINK;
3684 req.r.sdiag_protocol = NDIAG_PROTO_ALL;
3685 req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO;
3686
8a4025f6 3687 return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock);
ecb928c8
AV		 3688}
3689
d1f28cf1 3690static int netlink_show(struct filter *f)
aba5acdf
SH		 3691{
3692 FILE *fp;
3693 char buf[256];
3694 int prot, pid;
acd1e437 3695 unsigned int groups;
aba5acdf
SH		 3696 int rq, wq, rc;
3697 unsigned long long sk, cb;
3698
9db7bf15 3699 if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE)))
b9ea445d
VK		 3700 return 0;
3701
129709ae 3702 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
8a4025f6 3703 netlink_show_netlink(f) == 0)
129709ae
AV		 3704 return 0;
3705
ab01dbbb 3706 if ((fp = net_netlink_open()) == NULL)
aba5acdf 3707 return -1;
61170fd8 3708 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3709 fclose(fp);
3710 return -1;
3711 }
aba5acdf 3712
61170fd8 3713 while (fgets(buf, sizeof(buf), fp)) {
aba5acdf
SH		 3714 sscanf(buf, "%llx %d %d %x %d %d %llx %d",
3715 &sk,
3716 &prot, &pid, &groups, &rq, &wq, &cb, &rc);
3717
f271fe01 3718 netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb);
aba5acdf
SH		 3719 }
3720
b95d28c3 3721 fclose(fp);
aba5acdf
SH		 3722 return 0;
3723}
3724
6885e3bf
CG		 3725struct sock_diag_msg {
3726 __u8 sdiag_family;
3727};
3728
3729static int generic_show_sock(const struct sockaddr_nl *addr,
3730 struct nlmsghdr *nlh, void *arg)
3731{
3732 struct sock_diag_msg *r = NLMSG_DATA(nlh);
3733 struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX };
3734
3735 switch (r->sdiag_family) {
3736 case AF_INET:
3737 case AF_INET6:
3738 return show_one_inet_sock(addr, nlh, &inet_arg);
3739 case AF_UNIX:
3740 return unix_show_sock(addr, nlh, arg);
3741 case AF_PACKET:
3742 return packet_show_sock(addr, nlh, arg);
3743 case AF_NETLINK:
3744 return netlink_show_sock(addr, nlh, arg);
3745 default:
3746 return -1;
3747 }
3748}
3749
3750static int handle_follow_request(struct filter *f)
3751{
3752 int ret = -1;
3753 int groups = 0;
3754 struct rtnl_handle rth;
3755
3756 if (f->families & (1 << AF_INET) && f->dbs & (1 << TCP_DB))
3757 groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1);
3758 if (f->families & (1 << AF_INET) && f->dbs & (1 << UDP_DB))
3759 groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1);
3760 if (f->families & (1 << AF_INET6) && f->dbs & (1 << TCP_DB))
3761 groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1);
3762 if (f->families & (1 << AF_INET6) && f->dbs & (1 << UDP_DB))
3763 groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1);
3764
3765 if (groups == 0)
3766 return -1;
3767
3768 if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG))
3769 return -1;
3770
3771 rth.dump = 0;
3772 rth.local.nl_pid = 0;
3773
3774 if (rtnl_dump_filter(&rth, generic_show_sock, f))
3775 goto Exit;
3776
3777 ret = 0;
3778Exit:
3779 rtnl_close(&rth);
3780 return ret;
3781}
3782
acd1e437 3783struct snmpstat {
aba5acdf
SH		 3784 int tcp_estab;
3785};
3786
d1f28cf1 3787static int get_snmp_int(char *proto, char *key, int *result)
aba5acdf
SH		 3788{
3789 char buf[1024];
3790 FILE *fp;
3791 int protolen = strlen(proto);
3792 int keylen = strlen(key);
3793
3794 *result = 0;
3795
ab01dbbb 3796 if ((fp = net_snmp_open()) == NULL)
aba5acdf
SH		 3797 return -1;
3798
3799 while (fgets(buf, sizeof(buf), fp) != NULL) {
3800 char *p = buf;
3801 int pos = 0;
acd1e437 3802
aba5acdf
SH		 3803 if (memcmp(buf, proto, protolen))
3804 continue;
3805 while ((p = strchr(p, ' ')) != NULL) {
3806 pos++;
3807 p++;
3808 if (memcmp(p, key, keylen) == 0 &&
3809 (p[keylen] == ' ' || p[keylen] == '\n'))
3810 break;
3811 }
3812 if (fgets(buf, sizeof(buf), fp) == NULL)
3813 break;
3814 if (memcmp(buf, proto, protolen))
3815 break;
3816 p = buf;
3817 while ((p = strchr(p, ' ')) != NULL) {
3818 p++;
3819 if (--pos == 0) {
3820 sscanf(p, "%d", result);
3821 fclose(fp);
3822 return 0;
3823 }
3824 }
3825 }
3826
3827 fclose(fp);
3828 errno = ESRCH;
3829 return -1;
3830}
3831
3832
3833/* Get stats from sockstat */
3834
acd1e437 3835struct ssummary {
aba5acdf
SH		 3836 int socks;
3837 int tcp_mem;
3838 int tcp_total;
3839 int tcp_orphans;
3840 int tcp_tws;
3841 int tcp4_hashed;
3842 int udp4;
3843 int raw4;
3844 int frag4;
3845 int frag4_mem;
3846 int tcp6_hashed;
3847 int udp6;
3848 int raw6;
3849 int frag6;
3850 int frag6_mem;
3851};
3852
055840f2 3853static void get_sockstat_line(char *line, struct ssummary *s)
aba5acdf
SH		 3854{
3855 char id[256], rem[256];
3856
3857 if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2)
3858 return;
3859
3860 if (strcmp(id, "sockets:") == 0)
3861 sscanf(rem, "%*s%d", &s->socks);
3862 else if (strcmp(id, "UDP:") == 0)
3863 sscanf(rem, "%*s%d", &s->udp4);
3864 else if (strcmp(id, "UDP6:") == 0)
3865 sscanf(rem, "%*s%d", &s->udp6);
3866 else if (strcmp(id, "RAW:") == 0)
3867 sscanf(rem, "%*s%d", &s->raw4);
3868 else if (strcmp(id, "RAW6:") == 0)
3869 sscanf(rem, "%*s%d", &s->raw6);
3870 else if (strcmp(id, "TCP6:") == 0)
3871 sscanf(rem, "%*s%d", &s->tcp6_hashed);
3872 else if (strcmp(id, "FRAG:") == 0)
3873 sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem);
3874 else if (strcmp(id, "FRAG6:") == 0)
3875 sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem);
3876 else if (strcmp(id, "TCP:") == 0)
3877 sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d",
3878 &s->tcp4_hashed,
3879 &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem);
3880}
3881
055840f2 3882static int get_sockstat(struct ssummary *s)
aba5acdf
SH		 3883{
3884 char buf[256];
3885 FILE *fp;
3886
3887 memset(s, 0, sizeof(*s));
3888
ab01dbbb 3889 if ((fp = net_sockstat_open()) == NULL)
aba5acdf 3890 return -1;
acd1e437 3891 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3892 get_sockstat_line(buf, s);
3893 fclose(fp);
3894
ab01dbbb 3895 if ((fp = net_sockstat6_open()) == NULL)
aba5acdf 3896 return 0;
acd1e437 3897 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 3898 get_sockstat_line(buf, s);
3899 fclose(fp);
3900
3901 return 0;
3902}
3903
d1f28cf1 3904static int print_summary(void)
aba5acdf 3905{
055840f2 3906 struct ssummary s;
aba5acdf
SH		 3907 struct snmpstat sn;
3908
3909 if (get_sockstat(&s) < 0)
3910 perror("ss: get_sockstat");
3911 if (get_snmp_int("Tcp:", "CurrEstab", &sn.tcp_estab) < 0)
3912 perror("ss: get_snmpstat");
3913
a221d621
BL		 3914 get_slabstat(&slabstat);
3915
aba5acdf
SH		 3916 printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks);
3917
3918 printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
3919 s.tcp_total + slabstat.tcp_syns + s.tcp_tws,
3920 sn.tcp_estab,
3921 s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws),
3922 s.tcp_orphans,
3923 slabstat.tcp_syns,
3924 s.tcp_tws, slabstat.tcp_tws,
3925 slabstat.tcp_ports
3926 );
3927
3928 printf("\n");
3929 printf("Transport Total IP IPv6\n");
3930 printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-");
3931 printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6);
3932 printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6);
3933 printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed);
ae665a52 3934 printf("INET %-9d %-9d %-9d\n",
aba5acdf
SH		 3935 s.raw4+s.udp4+s.tcp4_hashed+
3936 s.raw6+s.udp6+s.tcp6_hashed,
3937 s.raw4+s.udp4+s.tcp4_hashed,
3938 s.raw6+s.udp6+s.tcp6_hashed);
3939 printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6);
3940
3941 printf("\n");
3942
3943 return 0;
3944}
3945
7a96e199 3946static void _usage(FILE *dest)
aba5acdf 3947{
7a96e199 3948 fprintf(dest,
aba5acdf
SH		 3949"Usage: ss [ OPTIONS ]\n"
3950" ss [ OPTIONS ] [ FILTER ]\n"
ff041f16
VK		 3951" -h, --help this message\n"
3952" -V, --version output version information\n"
3953" -n, --numeric don't resolve service names\n"
ab61159a 3954" -r, --resolve resolve host names\n"
ff041f16
VK		 3955" -a, --all display all sockets\n"
3956" -l, --listening display listening sockets\n"
ab61159a
SH		 3957" -o, --options show timer information\n"
3958" -e, --extended show detailed socket information\n"
3959" -m, --memory show socket memory usage\n"
ff041f16
VK		 3960" -p, --processes show process using socket\n"
3961" -i, --info show internal TCP information\n"
3962" -s, --summary show socket usage summary\n"
b0f01cf6 3963" -b, --bpf show bpf filter socket information\n"
6885e3bf 3964" -E, --events continually display sockets as they are destroyed\n"
ff041f16
VK		 3965" -Z, --context display process SELinux security contexts\n"
3966" -z, --contexts display process and socket SELinux security contexts\n"
95ce04bc 3967" -N, --net switch to the specified network namespace name\n"
ab61159a
SH		 3968"\n"
3969" -4, --ipv4 display only IP version 4 sockets\n"
3970" -6, --ipv6 display only IP version 6 sockets\n"
ff041f16
VK		 3971" -0, --packet display PACKET sockets\n"
3972" -t, --tcp display only TCP sockets\n"
f89d46ad 3973" -S, --sctp display only SCTP sockets\n"
ff041f16
VK		 3974" -u, --udp display only UDP sockets\n"
3975" -d, --dccp display only DCCP sockets\n"
3976" -w, --raw display only RAW sockets\n"
3977" -x, --unix display only Unix domain sockets\n"
ab61159a 3978" -f, --family=FAMILY display sockets of type FAMILY\n"
ebef3174 3979" FAMILY := {inet|inet6|link|unix|netlink|help}\n"
ab61159a 3980"\n"
fb2594c1 3981" -K, --kill forcibly close sockets, display what was closed\n"
7a4559f6 3982" -H, --no-header Suppress header line\n"
fb2594c1 3983"\n"
583de149 3984" -A, --query=QUERY, --socket=QUERY\n"
56dee73e 3985" QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n"
ab61159a 3986"\n"
583de149 3987" -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
ab61159a 3988" -F, --filter=FILE read filter information from FILE\n"
ff041f16
VK		 3989" FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
3990" STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
3991" TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listen|closing}\n"
3992" connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3993" synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
3994" bucket := {syn-recv|time-wait}\n"
3995" big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listen|closing}\n"
ab61159a 3996 );
7a96e199
AH		 3997}
3998
3999static void help(void) __attribute__((noreturn));
4000static void help(void)
4001{
4002 _usage(stdout);
4003 exit(0);
4004}
4005
4006static void usage(void) __attribute__((noreturn));
4007static void usage(void)
4008{
4009 _usage(stderr);
aba5acdf
SH		 4010 exit(-1);
4011}
4012
4013
d1f28cf1 4014static int scan_state(const char *state)
aba5acdf
SH		 4015{
4016 int i;
acd1e437 4017
aba5acdf
SH		 4018 if (strcasecmp(state, "close") == 0 ||
4019 strcasecmp(state, "closed") == 0)
4020 return (1<<SS_CLOSE);
4021 if (strcasecmp(state, "syn-rcv") == 0)
4022 return (1<<SS_SYN_RECV);
1a5bad5a 4023 if (strcasecmp(state, "established") == 0)
aba5acdf
SH		 4024 return (1<<SS_ESTABLISHED);
4025 if (strcasecmp(state, "all") == 0)
4026 return SS_ALL;
4027 if (strcasecmp(state, "connected") == 0)
4028 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN));
1a5bad5a 4029 if (strcasecmp(state, "synchronized") == 0)
aba5acdf
SH		 4030 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT));
4031 if (strcasecmp(state, "bucket") == 0)
4032 return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT);
4033 if (strcasecmp(state, "big") == 0)
4034 return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT));
acd1e437 4035 for (i = 0; i < SS_MAX; i++) {
1a5bad5a 4036 if (strcasecmp(state, sstate_namel[i]) == 0)
aba5acdf
SH		 4037 return (1<<i);
4038 }
9db7bf15
VK		 4039
4040 fprintf(stderr, "ss: wrong state name: %s\n", state);
4041 exit(-1);
aba5acdf
SH		 4042}
4043
ab61159a
SH		 4044static const struct option long_opts[] = {
4045 { "numeric", 0, 0, 'n' },
4046 { "resolve", 0, 0, 'r' },
4047 { "options", 0, 0, 'o' },
4048 { "extended", 0, 0, 'e' },
4049 { "memory", 0, 0, 'm' },
4050 { "info", 0, 0, 'i' },
4051 { "processes", 0, 0, 'p' },
372c30d2 4052 { "bpf", 0, 0, 'b' },
6885e3bf 4053 { "events", 0, 0, 'E' },
351efcde 4054 { "dccp", 0, 0, 'd' },
ab61159a 4055 { "tcp", 0, 0, 't' },
f89d46ad 4056 { "sctp", 0, 0, 'S' },
ab61159a
SH		 4057 { "udp", 0, 0, 'u' },
4058 { "raw", 0, 0, 'w' },
4059 { "unix", 0, 0, 'x' },
4060 { "all", 0, 0, 'a' },
4061 { "listening", 0, 0, 'l' },
4062 { "ipv4", 0, 0, '4' },
4063 { "ipv6", 0, 0, '6' },
4064 { "packet", 0, 0, '0' },
4065 { "family", 1, 0, 'f' },
4066 { "socket", 1, 0, 'A' },
583de149 4067 { "query", 1, 0, 'A' },
c3f346b0 4068 { "summary", 0, 0, 's' },
583de149 4069 { "diag", 1, 0, 'D' },
ab61159a
SH		 4070 { "filter", 1, 0, 'F' },
4071 { "version", 0, 0, 'V' },
4072 { "help", 0, 0, 'h' },
116ac927
RH		 4073 { "context", 0, 0, 'Z' },
4074 { "contexts", 0, 0, 'z' },
95ce04bc 4075 { "net", 1, 0, 'N' },
fb2594c1 4076 { "kill", 0, 0, 'K' },
7a4559f6 4077 { "no-header", 0, 0, 'H' },
ab61159a 4078 { 0 }
ae665a52 4079
ab61159a
SH		 4080};
4081
aba5acdf
SH		 4082int main(int argc, char *argv[])
4083{
aba5acdf
SH		 4084 int saw_states = 0;
4085 int saw_query = 0;
4086 int do_summary = 0;
7d105b56 4087 const char *dump_tcpdiag = NULL;
aba5acdf
SH		 4088 FILE *filter_fp = NULL;
4089 int ch;
9db7bf15 4090 int state_filter = 0;
aba5acdf 4091
168d97f9
SH		 4092 while ((ch = getopt_long(argc, argv,
4093 "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHS",
ab61159a 4094 long_opts, NULL)) != EOF) {
acd1e437 4095 switch (ch) {
aba5acdf
SH		 4096 case 'n':
4097 resolve_services = 0;
4098 break;
4099 case 'r':
4100 resolve_hosts = 1;
4101 break;
4102 case 'o':
4103 show_options = 1;
4104 break;
4105 case 'e':
4106 show_options = 1;
4107 show_details++;
4108 break;
4109 case 'm':
4110 show_mem = 1;
4111 break;
4112 case 'i':
4113 show_tcpinfo = 1;
4114 break;
4115 case 'p':
4116 show_users++;
fbc0f876 4117 user_ent_hash_build();
aba5acdf 4118 break;
372c30d2
ND		 4119 case 'b':
4120 show_options = 1;
4121 show_bpf++;
4122 break;
6885e3bf
CG		 4123 case 'E':
4124 follow_events = 1;
4125 break;
351efcde 4126 case 'd':
57ff5a10 4127 filter_db_set(&current_filter, DCCP_DB);
351efcde 4128 break;
aba5acdf 4129 case 't':
57ff5a10 4130 filter_db_set(&current_filter, TCP_DB);
aba5acdf 4131 break;
f89d46ad
PS		 4132 case 'S':
4133 filter_db_set(&current_filter, SCTP_DB);
4134 break;
aba5acdf 4135 case 'u':
57ff5a10 4136 filter_db_set(&current_filter, UDP_DB);
aba5acdf
SH		 4137 break;
4138 case 'w':
57ff5a10 4139 filter_db_set(&current_filter, RAW_DB);
aba5acdf
SH		 4140 break;
4141 case 'x':
9db7bf15 4142 filter_af_set(&current_filter, AF_UNIX);
aba5acdf
SH		 4143 break;
4144 case 'a':
9db7bf15 4145 state_filter = SS_ALL;
aba5acdf
SH		 4146 break;
4147 case 'l':
9db7bf15 4148 state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE);
aba5acdf
SH		 4149 break;
4150 case '4':
9db7bf15 4151 filter_af_set(&current_filter, AF_INET);
aba5acdf
SH		 4152 break;
4153 case '6':
9db7bf15 4154 filter_af_set(&current_filter, AF_INET6);
aba5acdf
SH		 4155 break;
4156 case '0':
9db7bf15 4157 filter_af_set(&current_filter, AF_PACKET);
aba5acdf
SH		 4158 break;
4159 case 'f':
4160 if (strcmp(optarg, "inet") == 0)
9db7bf15 4161 filter_af_set(&current_filter, AF_INET);
aba5acdf 4162 else if (strcmp(optarg, "inet6") == 0)
9db7bf15 4163 filter_af_set(&current_filter, AF_INET6);
aba5acdf 4164 else if (strcmp(optarg, "link") == 0)
9db7bf15 4165 filter_af_set(&current_filter, AF_PACKET);
aba5acdf 4166 else if (strcmp(optarg, "unix") == 0)
9db7bf15 4167 filter_af_set(&current_filter, AF_UNIX);
aba5acdf 4168 else if (strcmp(optarg, "netlink") == 0)
9db7bf15 4169 filter_af_set(&current_filter, AF_NETLINK);
aba5acdf 4170 else if (strcmp(optarg, "help") == 0)
7a96e199 4171 help();
aba5acdf 4172 else {
9db7bf15
VK		 4173 fprintf(stderr, "ss: \"%s\" is invalid family\n",
4174 optarg);
aba5acdf
SH		 4175 usage();
4176 }
4177 break;
4178 case 'A':
4179 {
4180 char *p, *p1;
acd1e437 4181
aba5acdf
SH		 4182 if (!saw_query) {
4183 current_filter.dbs = 0;
7f9dddbe 4184 state_filter = state_filter ?
acd1e437 4185 state_filter : SS_CONN;
aba5acdf
SH		 4186 saw_query = 1;
4187 do_default = 0;
4188 }
4189 p = p1 = optarg;
4190 do {
4191 if ((p1 = strchr(p, ',')) != NULL)
ae665a52 4192 *p1 = 0;
aba5acdf 4193 if (strcmp(p, "all") == 0) {
57ff5a10 4194 filter_default_dbs(&current_filter);
aba5acdf 4195 } else if (strcmp(p, "inet") == 0) {
57ff5a10
VK		 4196 filter_db_set(&current_filter, UDP_DB);
4197 filter_db_set(&current_filter, DCCP_DB);
4198 filter_db_set(&current_filter, TCP_DB);
f89d46ad 4199 filter_db_set(&current_filter, SCTP_DB);
57ff5a10 4200 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4201 } else if (strcmp(p, "udp") == 0) {
57ff5a10 4202 filter_db_set(&current_filter, UDP_DB);
351efcde 4203 } else if (strcmp(p, "dccp") == 0) {
57ff5a10 4204 filter_db_set(&current_filter, DCCP_DB);
aba5acdf 4205 } else if (strcmp(p, "tcp") == 0) {
57ff5a10 4206 filter_db_set(&current_filter, TCP_DB);
f89d46ad
PS		 4207 } else if (strcmp(p, "sctp") == 0) {
4208 filter_db_set(&current_filter, SCTP_DB);
aba5acdf 4209 } else if (strcmp(p, "raw") == 0) {
57ff5a10 4210 filter_db_set(&current_filter, RAW_DB);
aba5acdf 4211 } else if (strcmp(p, "unix") == 0) {
57ff5a10
VK		 4212 filter_db_set(&current_filter, UNIX_ST_DB);
4213 filter_db_set(&current_filter, UNIX_DG_DB);
4214 filter_db_set(&current_filter, UNIX_SQ_DB);
1a5bad5a 4215 } else if (strcasecmp(p, "unix_stream") == 0 ||
aba5acdf 4216 strcmp(p, "u_str") == 0) {
57ff5a10 4217 filter_db_set(&current_filter, UNIX_ST_DB);
1a5bad5a 4218 } else if (strcasecmp(p, "unix_dgram") == 0 ||
aba5acdf 4219 strcmp(p, "u_dgr") == 0) {
57ff5a10 4220 filter_db_set(&current_filter, UNIX_DG_DB);
30b669d7
MY		 4221 } else if (strcasecmp(p, "unix_seqpacket") == 0 ||
4222 strcmp(p, "u_seq") == 0) {
57ff5a10 4223 filter_db_set(&current_filter, UNIX_SQ_DB);
aba5acdf 4224 } else if (strcmp(p, "packet") == 0) {
57ff5a10
VK		 4225 filter_db_set(&current_filter, PACKET_R_DB);
4226 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf
SH		 4227 } else if (strcmp(p, "packet_raw") == 0 ||
4228 strcmp(p, "p_raw") == 0) {
57ff5a10 4229 filter_db_set(&current_filter, PACKET_R_DB);
aba5acdf
SH		 4230 } else if (strcmp(p, "packet_dgram") == 0 ||
4231 strcmp(p, "p_dgr") == 0) {
57ff5a10 4232 filter_db_set(&current_filter, PACKET_DG_DB);
aba5acdf 4233 } else if (strcmp(p, "netlink") == 0) {
57ff5a10 4234 filter_db_set(&current_filter, NETLINK_DB);
aba5acdf
SH		 4235 } else {
4236 fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p);
4237 usage();
4238 }
4239 p = p1 + 1;
4240 } while (p1);
4241 break;
4242 }
4243 case 's':
4244 do_summary = 1;
4245 break;
4246 case 'D':
4247 dump_tcpdiag = optarg;
4248 break;
4249 case 'F':
4250 if (filter_fp) {
4251 fprintf(stderr, "More than one filter file\n");
4252 exit(-1);
4253 }
4254 if (optarg[0] == '-')
4255 filter_fp = stdin;
4256 else
4257 filter_fp = fopen(optarg, "r");
4258 if (!filter_fp) {
4259 perror("fopen filter file");
4260 exit(-1);
4261 }
4262 break;
4263 case 'v':
4264 case 'V':
4265 printf("ss utility, iproute2-ss%s\n", SNAPSHOT);
4266 exit(0);
116ac927
RH		 4267 case 'z':
4268 show_sock_ctx++;
36df1a6e 4269 /* fall through */
116ac927
RH		 4270 case 'Z':
4271 if (is_selinux_enabled() <= 0) {
4272 fprintf(stderr, "ss: SELinux is not enabled.\n");
4273 exit(1);
4274 }
4275 show_proc_ctx++;
4276 user_ent_hash_build();
4277 break;
95ce04bc
VK		 4278 case 'N':
4279 if (netns_switch(optarg))
4280 exit(1);
4281 break;
fb2594c1
LC		 4282 case 'K':
4283 current_filter.kill = 1;
4284 break;
7a4559f6
DA		 4285 case 'H':
4286 show_header = 0;
4287 break;
aba5acdf 4288 case 'h':
7a96e199 4289 help();
f73105ab 4290 case '?':
aba5acdf
SH		 4291 default:
4292 usage();
4293 }
4294 }
4295
4296 argc -= optind;
4297 argv += optind;
4298
aba5acdf
SH		 4299 if (do_summary) {
4300 print_summary();
4301 if (do_default && argc == 0)
4302 exit(0);
4303 }
4304
aba5acdf
SH		 4305 while (argc > 0) {
4306 if (strcmp(*argv, "state") == 0) {
4307 NEXT_ARG();
4308 if (!saw_states)
9db7bf15
VK		 4309 state_filter = 0;
4310 state_filter |= scan_state(*argv);
aba5acdf
SH		 4311 saw_states = 1;
4312 } else if (strcmp(*argv, "exclude") == 0 ||
4313 strcmp(*argv, "excl") == 0) {
4314 NEXT_ARG();
4315 if (!saw_states)
9db7bf15
VK		 4316 state_filter = SS_ALL;
4317 state_filter &= ~scan_state(*argv);
aba5acdf
SH		 4318 saw_states = 1;
4319 } else {
aba5acdf
SH		 4320 break;
4321 }
4322 argc--; argv++;
4323 }
4324
9db7bf15
VK		 4325 if (do_default) {
4326 state_filter = state_filter ? state_filter : SS_CONN;
4327 filter_default_dbs(&current_filter);
9db7bf15
VK		 4328 }
4329
57ff5a10
VK		 4330 filter_states_set(&current_filter, state_filter);
4331 filter_merge_defaults(&current_filter);
4332
9db7bf15 4333 if (resolve_services && resolve_hosts &&
168d97f9 4334 (current_filter.dbs & (UNIX_DBM|INET_L4_DBM)))
9db7bf15
VK		 4335 init_service_resolver();
4336
9db7bf15
VK		 4337 if (current_filter.dbs == 0) {
4338 fprintf(stderr, "ss: no socket tables to show with such filter.\n");
4339 exit(0);
4340 }
4341 if (current_filter.families == 0) {
4342 fprintf(stderr, "ss: no families to show with such filter.\n");
4343 exit(0);
4344 }
aba5acdf
SH		 4345 if (current_filter.states == 0) {
4346 fprintf(stderr, "ss: no socket states to show with such filter.\n");
4347 exit(0);
4348 }
4349
4350 if (dump_tcpdiag) {
4351 FILE *dump_fp = stdout;
acd1e437 4352
aba5acdf
SH		 4353 if (!(current_filter.dbs & (1<<TCP_DB))) {
4354 fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n");
4355 exit(0);
4356 }
4357 if (dump_tcpdiag[0] != '-') {
4358 dump_fp = fopen(dump_tcpdiag, "w");
4359 if (!dump_tcpdiag) {
4360 perror("fopen dump file");
4361 exit(-1);
4362 }
4363 }
3fe5b534 4364 inet_show_netlink(&current_filter, dump_fp, IPPROTO_TCP);
aba5acdf
SH		 4365 fflush(dump_fp);
4366 exit(0);
4367 }
4368
1527a17e
VK		 4369 if (ssfilter_parse(&current_filter.f, argc, argv, filter_fp))
4370 usage();
4371
aba5acdf
SH		 4372 netid_width = 0;
4373 if (current_filter.dbs&(current_filter.dbs-1))
4374 netid_width = 5;
4375
4376 state_width = 0;
4377 if (current_filter.states&(current_filter.states-1))
4378 state_width = 10;
4379
4380 screen_width = 80;
4381 if (isatty(STDOUT_FILENO)) {
4382 struct winsize w;
4383
4384 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) {
4385 if (w.ws_col > 0)
4386 screen_width = w.ws_col;
4387 }
4388 }
4389
4390 addrp_width = screen_width;
4391 addrp_width -= netid_width+1;
4392 addrp_width -= state_width+1;
4393 addrp_width -= 14;
4394
4395 if (addrp_width&1) {
4396 if (netid_width)
4397 netid_width++;
4398 else if (state_width)
4399 state_width++;
4400 }
4401
4402 addrp_width /= 2;
4403 addrp_width--;
4404
4405 serv_width = resolve_services ? 7 : 5;
4406
4407 if (addrp_width < 15+serv_width+1)
4408 addrp_width = 15+serv_width+1;
4409
ae665a52 4410 addr_width = addrp_width - serv_width - 1;
aba5acdf 4411
7a4559f6
DA		 4412 if (show_header) {
4413 if (netid_width)
4414 printf("%-*s ", netid_width, "Netid");
4415 if (state_width)
4416 printf("%-*s ", state_width, "State");
4417 printf("%-6s %-6s ", "Recv-Q", "Send-Q");
4418 }
aba5acdf 4419
d68e00f7 4420 /* Make enough space for the local/remote port field */
4421 addr_width -= 13;
4422 serv_width += 13;
2dc85485 4423
7a4559f6
DA		 4424 if (show_header) {
4425 printf("%*s:%-*s %*s:%-*s\n",
4426 addr_width, "Local Address", serv_width, "Port",
4427 addr_width, "Peer Address", serv_width, "Port");
4428 }
aba5acdf 4429
aba5acdf
SH		 4430 fflush(stdout);
4431
6885e3bf
CG		 4432 if (follow_events)
4433 exit(handle_follow_request(&current_filter));
4434
aba5acdf
SH		 4435 if (current_filter.dbs & (1<<NETLINK_DB))
4436 netlink_show(&current_filter);
4437 if (current_filter.dbs & PACKET_DBM)
4438 packet_show(&current_filter);
4439 if (current_filter.dbs & UNIX_DBM)
4440 unix_show(&current_filter);
4441 if (current_filter.dbs & (1<<RAW_DB))
4442 raw_show(&current_filter);
4443 if (current_filter.dbs & (1<<UDP_DB))
4444 udp_show(&current_filter);
4445 if (current_filter.dbs & (1<<TCP_DB))
3fe5b534 4446 tcp_show(&current_filter, IPPROTO_TCP);
351efcde 4447 if (current_filter.dbs & (1<<DCCP_DB))
3fe5b534 4448 tcp_show(&current_filter, IPPROTO_DCCP);
f89d46ad
PS		 4449 if (current_filter.dbs & (1<<SCTP_DB))
4450 sctp_show(&current_filter);
116ac927
RH		 4451
4452 if (show_users || show_proc_ctx || show_sock_ctx)
4453 user_ent_destroy();
4454
aba5acdf
SH		 4455 return 0;
4456}
Upstream mirror of iproute2