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ipmaddr: use preferred_family when given
[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>
aba5acdf
SH		 15#include <fcntl.h>
16#include <sys/ioctl.h>
17#include <sys/socket.h>
18#include <sys/uio.h>
0bab7630 19#include <sys/sysmacros.h>
aba5acdf
SH		 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>
90351722 30#include <stdarg.h>
aba5acdf
SH		 31
32#include "utils.h"
33#include "rt_names.h"
34#include "ll_map.h"
35#include "libnetlink.h"
95ce04bc 36#include "namespace.h"
aba5acdf
SH		 37#include "SNAPSHOT.h"
38
9cb1eccf 39#include <linux/tcp.h>
f6062360 40#include <linux/sock_diag.h>
351efcde 41#include <linux/inet_diag.h>
dfbaa90d 42#include <linux/unix_diag.h>
372c30d2
ND		 43#include <linux/netdevice.h> /* for MAX_ADDR_LEN */
44#include <linux/filter.h>
45#include <linux/packet_diag.h>
ecb928c8 46#include <linux/netlink_diag.h>
f89d46ad 47#include <linux/sctp.h>
c759116a 48#include <linux/vm_sockets_diag.h>
5caf79a0
GM		 49#include <linux/net.h>
50#include <linux/tipc.h>
51#include <linux/tipc_netlink.h>
52#include <linux/tipc_sockets_diag.h>
aba5acdf 53
8a4025f6 54#define MAGIC_SEQ 123456
691bd854
SB		 55#define BUF_CHUNK (1024 * 1024)
56#define LEN_ALIGN(x) (((x) + 1) & ~1)
8a4025f6 57
5fb421d4 58#define DIAG_REQUEST(_req, _r) \
59 struct { \
60 struct nlmsghdr nlh; \
61 _r; \
62 } _req = { \
63 .nlh = { \
64 .nlmsg_type = SOCK_DIAG_BY_FAMILY, \
65 .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\
8a4025f6 66 .nlmsg_seq = MAGIC_SEQ, \
5fb421d4 67 .nlmsg_len = sizeof(_req), \
68 }, \
69 }
70
116ac927
RH		 71#if HAVE_SELINUX
72#include <selinux/selinux.h>
73#else
74/* Stubs for SELinux functions */
75static int is_selinux_enabled(void)
76{
77 return -1;
78}
79
80static int getpidcon(pid_t pid, char **context)
81{
82 *context = NULL;
83 return -1;
84}
85
86static int getfilecon(char *path, char **context)
87{
88 *context = NULL;
89 return -1;
90}
91
92static int security_get_initial_context(char *name, char **context)
93{
94 *context = NULL;
95 return -1;
96}
97#endif
98
aba5acdf
SH		 99int resolve_services = 1;
100int preferred_family = AF_UNSPEC;
acd1e437
SH		 101int show_options;
102int show_details;
103int show_users;
104int show_mem;
105int show_tcpinfo;
106int show_bpf;
107int show_proc_ctx;
108int show_sock_ctx;
7a4559f6 109int show_header = 1;
acd1e437 110int follow_events;
f89d46ad 111int sctp_ino;
5caf79a0 112int show_tipcinfo;
aba5acdf 113
59f46b7b
SB		 114enum col_id {
115 COL_NETID,
116 COL_STATE,
117 COL_RECVQ,
118 COL_SENDQ,
119 COL_ADDR,
120 COL_SERV,
121 COL_RADDR,
122 COL_RSERV,
123 COL_EXT,
124 COL_MAX
125};
126
127enum col_align {
128 ALIGN_LEFT,
129 ALIGN_CENTER,
130 ALIGN_RIGHT
131};
132
133struct column {
134 const enum col_align align;
135 const char *header;
136 const char *ldelim;
87b1a7ae
SB		 137 int disabled;
138 int width; /* Calculated, including additional layout spacing */
139 int max_len; /* Measured maximum field length in this column */
59f46b7b
SB		 140};
141
142static struct column columns[] = {
87b1a7ae
SB		 143 { ALIGN_LEFT, "Netid", "", 0, 0, 0 },
144 { ALIGN_LEFT, "State", " ", 0, 0, 0 },
145 { ALIGN_LEFT, "Recv-Q", " ", 0, 0, 0 },
146 { ALIGN_LEFT, "Send-Q", " ", 0, 0, 0 },
147 { ALIGN_RIGHT, "Local Address:", " ", 0, 0, 0 },
148 { ALIGN_LEFT, "Port", "", 0, 0, 0 },
149 { ALIGN_RIGHT, "Peer Address:", " ", 0, 0, 0 },
150 { ALIGN_LEFT, "Port", "", 0, 0, 0 },
151 { ALIGN_LEFT, "", "", 0, 0, 0 },
59f46b7b
SB		 152};
153
154static struct column *current_field = columns;
691bd854
SB		 155
156/* Output buffer: chained chunks of BUF_CHUNK bytes. Each field is written to
157 * the buffer as a variable size token. A token consists of a 16 bits length
158 * field, followed by a string which is not NULL-terminated.
159 *
160 * A new chunk is allocated and linked when the current chunk doesn't have
161 * enough room to store the current token as a whole.
162 */
163struct buf_chunk {
164 struct buf_chunk *next; /* Next chained chunk */
165 char *end; /* Current end of content */
166 char data[0];
167};
168
169struct buf_token {
170 uint16_t len; /* Data length, excluding length descriptor */
171 char data[0];
172};
173
174static struct {
175 struct buf_token *cur; /* Position of current token in chunk */
176 struct buf_chunk *head; /* First chunk */
177 struct buf_chunk *tail; /* Current chunk */
178} buffer;
aba5acdf
SH		 179
180static const char *TCP_PROTO = "tcp";
f89d46ad 181static const char *SCTP_PROTO = "sctp";
aba5acdf
SH		 182static const char *UDP_PROTO = "udp";
183static const char *RAW_PROTO = "raw";
acd1e437 184static const char *dg_proto;
aba5acdf 185
acd1e437 186enum {
aba5acdf 187 TCP_DB,
351efcde 188 DCCP_DB,
aba5acdf
SH		 189 UDP_DB,
190 RAW_DB,
191 UNIX_DG_DB,
192 UNIX_ST_DB,
30b669d7 193 UNIX_SQ_DB,
aba5acdf
SH		 194 PACKET_DG_DB,
195 PACKET_R_DB,
196 NETLINK_DB,
f89d46ad 197 SCTP_DB,
c759116a
SH		 198 VSOCK_ST_DB,
199 VSOCK_DG_DB,
5caf79a0 200 TIPC_DB,
aba5acdf
SH		 201 MAX_DB
202};
203
204#define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
30b669d7 205#define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB))
aba5acdf 206#define ALL_DB ((1<<MAX_DB)-1)
168d97f9
SH		 207#define INET_L4_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<SCTP_DB))
208#define INET_DBM (INET_L4_DBM | (1<<RAW_DB))
c759116a 209#define VSOCK_DBM ((1<<VSOCK_ST_DB)|(1<<VSOCK_DG_DB))
aba5acdf
SH		 210
211enum {
7d105b56
SH		 212 SS_UNKNOWN,
213 SS_ESTABLISHED,
214 SS_SYN_SENT,
215 SS_SYN_RECV,
216 SS_FIN_WAIT1,
217 SS_FIN_WAIT2,
218 SS_TIME_WAIT,
219 SS_CLOSE,
220 SS_CLOSE_WAIT,
221 SS_LAST_ACK,
222 SS_LISTEN,
223 SS_CLOSING,
224 SS_MAX
aba5acdf
SH		 225};
226
f89d46ad
PS		 227enum {
228 SCTP_STATE_CLOSED = 0,
229 SCTP_STATE_COOKIE_WAIT = 1,
230 SCTP_STATE_COOKIE_ECHOED = 2,
231 SCTP_STATE_ESTABLISHED = 3,
232 SCTP_STATE_SHUTDOWN_PENDING = 4,
233 SCTP_STATE_SHUTDOWN_SENT = 5,
234 SCTP_STATE_SHUTDOWN_RECEIVED = 6,
235 SCTP_STATE_SHUTDOWN_ACK_SENT = 7,
236};
237
9db7bf15
VK		 238#define SS_ALL ((1 << SS_MAX) - 1)
239#define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)))
5caf79a0 240#define TIPC_SS_CONN ((1<<SS_ESTABLISHED)|(1<<SS_LISTEN)|(1<<SS_CLOSE))
aba5acdf
SH		 241
242#include "ssfilter.h"
243
acd1e437 244struct filter {
aba5acdf
SH		 245 int dbs;
246 int states;
b338a3e7 247 uint64_t families;
aba5acdf 248 struct ssfilter *f;
fb2594c1 249 bool kill;
97352f1b 250 struct rtnl_handle *rth_for_killing;
aba5acdf
SH		 251};
252
b338a3e7
SH		 253#define FAMILY_MASK(family) ((uint64_t)1 << (family))
254
9db7bf15
VK		 255static const struct filter default_dbs[MAX_DB] = {
256 [TCP_DB] = {
257 .states = SS_CONN,
b338a3e7 258 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 259 },
260 [DCCP_DB] = {
261 .states = SS_CONN,
b338a3e7 262 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 263 },
264 [UDP_DB] = {
f42a4574 265 .states = (1 << SS_ESTABLISHED),
b338a3e7 266 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 267 },
268 [RAW_DB] = {
f42a4574 269 .states = (1 << SS_ESTABLISHED),
b338a3e7 270 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 271 },
272 [UNIX_DG_DB] = {
273 .states = (1 << SS_CLOSE),
b338a3e7 274 .families = FAMILY_MASK(AF_UNIX),
9db7bf15
VK		 275 },
276 [UNIX_ST_DB] = {
277 .states = SS_CONN,
b338a3e7 278 .families = FAMILY_MASK(AF_UNIX),
9db7bf15
VK		 279 },
280 [UNIX_SQ_DB] = {
281 .states = SS_CONN,
b338a3e7 282 .families = FAMILY_MASK(AF_UNIX),
9db7bf15
VK		 283 },
284 [PACKET_DG_DB] = {
285 .states = (1 << SS_CLOSE),
b338a3e7 286 .families = FAMILY_MASK(AF_PACKET),
9db7bf15
VK		 287 },
288 [PACKET_R_DB] = {
289 .states = (1 << SS_CLOSE),
b338a3e7 290 .families = FAMILY_MASK(AF_PACKET),
9db7bf15
VK		 291 },
292 [NETLINK_DB] = {
293 .states = (1 << SS_CLOSE),
b338a3e7 294 .families = FAMILY_MASK(AF_NETLINK),
9db7bf15 295 },
f89d46ad
PS		 296 [SCTP_DB] = {
297 .states = SS_CONN,
b338a3e7 298 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
f89d46ad 299 },
c759116a
SH		 300 [VSOCK_ST_DB] = {
301 .states = SS_CONN,
302 .families = FAMILY_MASK(AF_VSOCK),
303 },
304 [VSOCK_DG_DB] = {
305 .states = SS_CONN,
306 .families = FAMILY_MASK(AF_VSOCK),
307 },
5caf79a0
GM		 308 [TIPC_DB] = {
309 .states = TIPC_SS_CONN,
310 .families = FAMILY_MASK(AF_TIPC),
311 },
aba5acdf
SH		 312};
313
9db7bf15
VK		 314static const struct filter default_afs[AF_MAX] = {
315 [AF_INET] = {
316 .dbs = INET_DBM,
317 .states = SS_CONN,
318 },
319 [AF_INET6] = {
320 .dbs = INET_DBM,
321 .states = SS_CONN,
322 },
323 [AF_UNIX] = {
324 .dbs = UNIX_DBM,
325 .states = SS_CONN,
326 },
327 [AF_PACKET] = {
328 .dbs = PACKET_DBM,
329 .states = (1 << SS_CLOSE),
330 },
331 [AF_NETLINK] = {
332 .dbs = (1 << NETLINK_DB),
333 .states = (1 << SS_CLOSE),
334 },
c759116a
SH		 335 [AF_VSOCK] = {
336 .dbs = VSOCK_DBM,
337 .states = SS_CONN,
338 },
5caf79a0
GM		 339 [AF_TIPC] = {
340 .dbs = (1 << TIPC_DB),
341 .states = TIPC_SS_CONN,
342 },
9db7bf15
VK		 343};
344
345static int do_default = 1;
346static struct filter current_filter;
347
c121111e 348static void filter_db_set(struct filter *f, int db, bool enable)
9db7bf15 349{
c121111e
PS		 350 if (enable) {
351 f->states |= default_dbs[db].states;
352 f->dbs |= 1 << db;
353 } else {
354 f->dbs &= ~(1 << db);
355 }
9db7bf15
VK		 356 do_default = 0;
357}
358
67d5fd55
PS		 359static int filter_db_parse(struct filter *f, const char *s)
360{
361 const struct {
362 const char *name;
363 int dbs[MAX_DB + 1];
364 } db_name_tbl[] = {
365#define ENTRY(name, ...) { #name, { __VA_ARGS__, MAX_DB } }
366 ENTRY(all, UDP_DB, DCCP_DB, TCP_DB, RAW_DB,
367 UNIX_ST_DB, UNIX_DG_DB, UNIX_SQ_DB,
368 PACKET_R_DB, PACKET_DG_DB, NETLINK_DB,
369 SCTP_DB, VSOCK_ST_DB, VSOCK_DG_DB),
370 ENTRY(inet, UDP_DB, DCCP_DB, TCP_DB, SCTP_DB, RAW_DB),
371 ENTRY(udp, UDP_DB),
372 ENTRY(dccp, DCCP_DB),
373 ENTRY(tcp, TCP_DB),
374 ENTRY(sctp, SCTP_DB),
375 ENTRY(raw, RAW_DB),
376 ENTRY(unix, UNIX_ST_DB, UNIX_DG_DB, UNIX_SQ_DB),
377 ENTRY(unix_stream, UNIX_ST_DB),
378 ENTRY(u_str, UNIX_ST_DB), /* alias for unix_stream */
379 ENTRY(unix_dgram, UNIX_DG_DB),
380 ENTRY(u_dgr, UNIX_DG_DB), /* alias for unix_dgram */
381 ENTRY(unix_seqpacket, UNIX_SQ_DB),
382 ENTRY(u_seq, UNIX_SQ_DB), /* alias for unix_seqpacket */
383 ENTRY(packet, PACKET_R_DB, PACKET_DG_DB),
384 ENTRY(packet_raw, PACKET_R_DB),
385 ENTRY(p_raw, PACKET_R_DB), /* alias for packet_raw */
386 ENTRY(packet_dgram, PACKET_DG_DB),
387 ENTRY(p_dgr, PACKET_DG_DB), /* alias for packet_dgram */
388 ENTRY(netlink, NETLINK_DB),
389 ENTRY(vsock, VSOCK_ST_DB, VSOCK_DG_DB),
390 ENTRY(vsock_stream, VSOCK_ST_DB),
391 ENTRY(v_str, VSOCK_ST_DB), /* alias for vsock_stream */
392 ENTRY(vsock_dgram, VSOCK_DG_DB),
393 ENTRY(v_dgr, VSOCK_DG_DB), /* alias for vsock_dgram */
394#undef ENTRY
395 };
396 bool enable = true;
397 unsigned int i;
398 const int *dbp;
399
400 if (s[0] == '!') {
401 enable = false;
402 s++;
403 }
404 for (i = 0; i < ARRAY_SIZE(db_name_tbl); i++) {
405 if (strcmp(s, db_name_tbl[i].name))
406 continue;
407 for (dbp = db_name_tbl[i].dbs; *dbp != MAX_DB; dbp++)
408 filter_db_set(f, *dbp, enable);
409 return 0;
410 }
411 return -1;
412}
413
9db7bf15
VK		 414static void filter_af_set(struct filter *f, int af)
415{
1527a17e 416 f->states |= default_afs[af].states;
b338a3e7 417 f->families |= FAMILY_MASK(af);
1527a17e
VK		 418 do_default = 0;
419 preferred_family = af;
9db7bf15
VK		 420}
421
422static int filter_af_get(struct filter *f, int af)
423{
b338a3e7 424 return !!(f->families & FAMILY_MASK(af));
9db7bf15
VK		 425}
426
57ff5a10 427static void filter_states_set(struct filter *f, int states)
9db7bf15 428{
57ff5a10 429 if (states)
9d320e1e 430 f->states = states;
57ff5a10 431}
9db7bf15 432
57ff5a10
VK		 433static void filter_merge_defaults(struct filter *f)
434{
435 int db;
436 int af;
9db7bf15 437
57ff5a10
VK		 438 for (db = 0; db < MAX_DB; db++) {
439 if (!(f->dbs & (1 << db)))
440 continue;
9db7bf15 441
57ff5a10
VK		 442 if (!(default_dbs[db].families & f->families))
443 f->families |= default_dbs[db].families;
444 }
445 for (af = 0; af < AF_MAX; af++) {
b338a3e7 446 if (!(f->families & FAMILY_MASK(af)))
57ff5a10
VK		 447 continue;
448
449 if (!(default_afs[af].dbs & f->dbs))
450 f->dbs |= default_afs[af].dbs;
451 }
9db7bf15 452}
aba5acdf 453
ab01dbbb 454static FILE *generic_proc_open(const char *env, const char *name)
aba5acdf 455{
ab01dbbb 456 const char *p = getenv(env);
aba5acdf 457 char store[128];
ab01dbbb 458
aba5acdf
SH		 459 if (!p) {
460 p = getenv("PROC_ROOT") ? : "/proc";
461 snprintf(store, sizeof(store)-1, "%s/%s", p, name);
462 p = store;
463 }
ab01dbbb
SH		 464
465 return fopen(p, "r");
aba5acdf 466}
0cb74a86
PS		 467#define net_tcp_open() generic_proc_open("PROC_NET_TCP", "net/tcp")
468#define net_tcp6_open() generic_proc_open("PROC_NET_TCP6", "net/tcp6")
469#define net_udp_open() generic_proc_open("PROC_NET_UDP", "net/udp")
470#define net_udp6_open() generic_proc_open("PROC_NET_UDP6", "net/udp6")
471#define net_raw_open() generic_proc_open("PROC_NET_RAW", "net/raw")
472#define net_raw6_open() generic_proc_open("PROC_NET_RAW6", "net/raw6")
473#define net_unix_open() generic_proc_open("PROC_NET_UNIX", "net/unix")
474#define net_packet_open() generic_proc_open("PROC_NET_PACKET", \
475 "net/packet")
476#define net_netlink_open() generic_proc_open("PROC_NET_NETLINK", \
477 "net/netlink")
0cb74a86
PS		 478#define net_sockstat_open() generic_proc_open("PROC_NET_SOCKSTAT", \
479 "net/sockstat")
480#define net_sockstat6_open() generic_proc_open("PROC_NET_SOCKSTAT6", \
481 "net/sockstat6")
482#define net_snmp_open() generic_proc_open("PROC_NET_SNMP", "net/snmp")
483#define ephemeral_ports_open() generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", \
484 "sys/net/ipv4/ip_local_port_range")
aba5acdf 485
fbc0f876
SF		 486struct user_ent {
487 struct user_ent *next;
488 unsigned int ino;
489 int pid;
490 int fd;
116ac927
RH		 491 char *process;
492 char *process_ctx;
493 char *socket_ctx;
fbc0f876
SF		 494};
495
496#define USER_ENT_HASH_SIZE 256
497struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE];
498
499static int user_ent_hashfn(unsigned int ino)
aba5acdf 500{
fbc0f876 501 int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino;
aba5acdf 502
fbc0f876
SF		 503 return val & (USER_ENT_HASH_SIZE - 1);
504}
505
116ac927
RH		 506static void user_ent_add(unsigned int ino, char *process,
507 int pid, int fd,
508 char *proc_ctx,
509 char *sock_ctx)
fbc0f876
SF		 510{
511 struct user_ent *p, **pp;
aba5acdf 512
116ac927
RH		 513 p = malloc(sizeof(struct user_ent));
514 if (!p) {
515 fprintf(stderr, "ss: failed to malloc buffer\n");
fbc0f876 516 abort();
116ac927 517 }
fbc0f876
SF		 518 p->next = NULL;
519 p->ino = ino;
520 p->pid = pid;
521 p->fd = fd;
116ac927
RH		 522 p->process = strdup(process);
523 p->process_ctx = strdup(proc_ctx);
524 p->socket_ctx = strdup(sock_ctx);
fbc0f876
SF		 525
526 pp = &user_ent_hash[user_ent_hashfn(ino)];
527 p->next = *pp;
528 *pp = p;
529}
aba5acdf 530
116ac927
RH		 531static void user_ent_destroy(void)
532{
533 struct user_ent *p, *p_next;
534 int cnt = 0;
535
536 while (cnt != USER_ENT_HASH_SIZE) {
537 p = user_ent_hash[cnt];
538 while (p) {
539 free(p->process);
540 free(p->process_ctx);
541 free(p->socket_ctx);
542 p_next = p->next;
543 free(p);
544 p = p_next;
545 }
546 cnt++;
547 }
548}
549
fbc0f876
SF		 550static void user_ent_hash_build(void)
551{
552 const char *root = getenv("PROC_ROOT") ? : "/proc/";
553 struct dirent *d;
554 char name[1024];
555 int nameoff;
556 DIR *dir;
116ac927
RH		 557 char *pid_context;
558 char *sock_context;
559 const char *no_ctx = "unavailable";
b25bad2f 560 static int user_ent_hash_build_init;
116ac927
RH		 561
562 /* If show_users & show_proc_ctx set only do this once */
563 if (user_ent_hash_build_init != 0)
564 return;
565
566 user_ent_hash_build_init = 1;
fbc0f876 567
18f156bf 568 strlcpy(name, root, sizeof(name));
0ee9052f 569
fbc0f876 570 if (strlen(name) == 0 || name[strlen(name)-1] != '/')
aba5acdf 571 strcat(name, "/");
fbc0f876 572
aba5acdf 573 nameoff = strlen(name);
fbc0f876
SF		 574
575 dir = opendir(name);
576 if (!dir)
577 return;
aba5acdf
SH		 578
579 while ((d = readdir(dir)) != NULL) {
aba5acdf 580 struct dirent *d1;
aba5acdf 581 char process[16];
116ac927 582 char *p;
fbc0f876
SF		 583 int pid, pos;
584 DIR *dir1;
585 char crap;
aba5acdf
SH		 586
587 if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1)
588 continue;
589
116ac927
RH		 590 if (getpidcon(pid, &pid_context) != 0)
591 pid_context = strdup(no_ctx);
592
0ee9052f 593 snprintf(name + nameoff, sizeof(name) - nameoff, "%d/fd/", pid);
aba5acdf 594 pos = strlen(name);
a02371fb
PS		 595 if ((dir1 = opendir(name)) == NULL) {
596 free(pid_context);
aba5acdf 597 continue;
a02371fb 598 }
aba5acdf 599
fbc0f876 600 process[0] = '\0';
116ac927 601 p = process;
aba5acdf
SH		 602
603 while ((d1 = readdir(dir1)) != NULL) {
fbc0f876
SF		 604 const char *pattern = "socket:[";
605 unsigned int ino;
aba5acdf 606 char lnk[64];
18445b3e 607 int fd;
788731b3 608 ssize_t link_len;
116ac927 609 char tmp[1024];
aba5acdf
SH		 610
611 if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1)
612 continue;
613
0ee9052f 614 snprintf(name+pos, sizeof(name) - pos, "%d", fd);
788731b3
TJ		 615
616 link_len = readlink(name, lnk, sizeof(lnk)-1);
617 if (link_len == -1)
618 continue;
619 lnk[link_len] = '\0';
620
621 if (strncmp(lnk, pattern, strlen(pattern)))
aba5acdf
SH		 622 continue;
623
fbc0f876 624 sscanf(lnk, "socket:[%u]", &ino);
aba5acdf 625
116ac927
RH		 626 snprintf(tmp, sizeof(tmp), "%s/%d/fd/%s",
627 root, pid, d1->d_name);
628
629 if (getfilecon(tmp, &sock_context) <= 0)
630 sock_context = strdup(no_ctx);
631
632 if (*p == '\0') {
aba5acdf 633 FILE *fp;
fbc0f876 634
116ac927
RH		 635 snprintf(tmp, sizeof(tmp), "%s/%d/stat",
636 root, pid);
aba5acdf 637 if ((fp = fopen(tmp, "r")) != NULL) {
d572ed4d
PS		 638 if (fscanf(fp, "%*d (%[^)])", p) < 1)
639 ; /* ignore */
aba5acdf
SH		 640 fclose(fp);
641 }
642 }
116ac927
RH		 643 user_ent_add(ino, p, pid, fd,
644 pid_context, sock_context);
645 free(sock_context);
aba5acdf 646 }
116ac927 647 free(pid_context);
aba5acdf
SH		 648 closedir(dir1);
649 }
650 closedir(dir);
fbc0f876
SF		 651}
652
116ac927
RH		 653enum entry_types {
654 USERS,
655 PROC_CTX,
656 PROC_SOCK_CTX
657};
658
659#define ENTRY_BUF_SIZE 512
acd1e437 660static int find_entry(unsigned int ino, char **buf, int type)
fbc0f876
SF		 661{
662 struct user_ent *p;
663 int cnt = 0;
664 char *ptr;
532ca40a 665 char *new_buf;
116ac927
RH		 666 int len, new_buf_len;
667 int buf_used = 0;
668 int buf_len = 0;
fbc0f876
SF		 669
670 if (!ino)
671 return 0;
672
673 p = user_ent_hash[user_ent_hashfn(ino)];
116ac927 674 ptr = *buf = NULL;
fbc0f876
SF		 675 while (p) {
676 if (p->ino != ino)
677 goto next;
678
116ac927
RH		 679 while (1) {
680 ptr = *buf + buf_used;
681 switch (type) {
682 case USERS:
683 len = snprintf(ptr, buf_len - buf_used,
684 "(\"%s\",pid=%d,fd=%d),",
685 p->process, p->pid, p->fd);
686 break;
687 case PROC_CTX:
688 len = snprintf(ptr, buf_len - buf_used,
689 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),",
690 p->process, p->pid,
691 p->process_ctx, p->fd);
692 break;
693 case PROC_SOCK_CTX:
694 len = snprintf(ptr, buf_len - buf_used,
695 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),",
696 p->process, p->pid,
697 p->process_ctx, p->fd,
698 p->socket_ctx);
699 break;
700 default:
701 fprintf(stderr, "ss: invalid type: %d\n", type);
702 abort();
703 }
fbc0f876 704
116ac927
RH		 705 if (len < 0 || len >= buf_len - buf_used) {
706 new_buf_len = buf_len + ENTRY_BUF_SIZE;
532ca40a 707 new_buf = realloc(*buf, new_buf_len);
116ac927
RH		 708 if (!new_buf) {
709 fprintf(stderr, "ss: failed to malloc buffer\n");
710 abort();
711 }
532ca40a 712 *buf = new_buf;
116ac927
RH		 713 buf_len = new_buf_len;
714 continue;
715 } else {
716 buf_used += len;
717 break;
718 }
719 }
fbc0f876 720 cnt++;
116ac927 721next:
fbc0f876
SF		 722 p = p->next;
723 }
116ac927
RH		 724 if (buf_used) {
725 ptr = *buf + buf_used;
fbc0f876 726 ptr[-1] = '\0';
116ac927 727 }
aba5acdf
SH		 728 return cnt;
729}
730
2e7e805d 731static unsigned long long cookie_sk_get(const uint32_t *cookie)
f1b39e1b 732{
2e7e805d 733 return (((unsigned long long)cookie[1] << 31) << 1) | cookie[0];
f1b39e1b
VK		 734}
735
f89d46ad
PS		 736static const char *sctp_sstate_name[] = {
737 [SCTP_STATE_CLOSED] = "CLOSED",
738 [SCTP_STATE_COOKIE_WAIT] = "COOKIE_WAIT",
739 [SCTP_STATE_COOKIE_ECHOED] = "COOKIE_ECHOED",
740 [SCTP_STATE_ESTABLISHED] = "ESTAB",
741 [SCTP_STATE_SHUTDOWN_PENDING] = "SHUTDOWN_PENDING",
742 [SCTP_STATE_SHUTDOWN_SENT] = "SHUTDOWN_SENT",
743 [SCTP_STATE_SHUTDOWN_RECEIVED] = "SHUTDOWN_RECEIVED",
744 [SCTP_STATE_SHUTDOWN_ACK_SENT] = "ACK_SENT",
745};
746
5caf79a0
GM		 747static const char * const stype_nameg[] = {
748 "UNKNOWN",
749 [SOCK_STREAM] = "STREAM",
750 [SOCK_DGRAM] = "DGRAM",
751 [SOCK_RDM] = "RDM",
752 [SOCK_SEQPACKET] = "SEQPACKET",
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;
4cbf5224
PS		 786 unsigned int timer;
787 unsigned int timeout;
8250bc9f 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;
38e6dbc4
ED		 796 int rcv_mss;
797 int advmss;
3d791a32 798 unsigned int pmtu;
d1f338b3 799 unsigned int cwnd;
8250bc9f
VK		 800 unsigned int lastsnd;
801 unsigned int lastrcv;
802 unsigned int lastack;
803 double pacing_rate;
804 double pacing_rate_max;
2f579872 805 double delivery_rate;
1a4dda71
ED		 806 unsigned long long bytes_acked;
807 unsigned long long bytes_received;
ecb435ea
CG		 808 unsigned int segs_out;
809 unsigned int segs_in;
414aeec9
MKL		 810 unsigned int data_segs_out;
811 unsigned int data_segs_in;
8250bc9f
VK		 812 unsigned int unacked;
813 unsigned int retrans;
814 unsigned int retrans_total;
815 unsigned int lost;
816 unsigned int sacked;
817 unsigned int fackets;
818 unsigned int reordering;
9e99e495 819 unsigned int not_sent;
8250bc9f 820 double rcv_rtt;
9e99e495 821 double min_rtt;
8250bc9f 822 int rcv_space;
00ac78d3 823 unsigned int rcv_ssthresh;
b6c7fc61
YC		 824 unsigned long long busy_time;
825 unsigned long long rwnd_limited;
826 unsigned long long sndbuf_limited;
8250bc9f
VK		 827 bool has_ts_opt;
828 bool has_sack_opt;
829 bool has_ecn_opt;
830 bool has_ecnseen_opt;
831 bool has_fastopen_opt;
832 bool has_wscale_opt;
2f579872 833 bool app_limited;
8250bc9f 834 struct dctcpstat *dctcp;
2f0f9aef 835 struct tcp_bbr_info *bbr_info;
aba5acdf
SH		 836};
837
f89d46ad
PS		 838/* SCTP assocs share the same inode number with their parent endpoint. So if we
839 * have seen the inode number before, it must be an assoc instead of the next
840 * endpoint. */
841static bool is_sctp_assoc(struct sockstat *s, const char *sock_name)
842{
843 if (strcmp(sock_name, "sctp"))
844 return false;
845 if (!sctp_ino || sctp_ino != s->ino)
846 return false;
847 return true;
848}
849
be7e4d20
PS		 850static const char *unix_netid_name(int type)
851{
852 switch (type) {
853 case SOCK_STREAM:
854 return "u_str";
855 case SOCK_SEQPACKET:
856 return "u_seq";
857 case SOCK_DGRAM:
858 default:
859 return "u_dgr";
860 }
861}
862
863static const char *proto_name(int protocol)
2d791bc8 864{
be7e4d20
PS		 865 switch (protocol) {
866 case 0:
867 return "raw";
868 case IPPROTO_UDP:
869 return "udp";
870 case IPPROTO_TCP:
871 return "tcp";
872 case IPPROTO_SCTP:
873 return "sctp";
874 case IPPROTO_DCCP:
875 return "dccp";
572e8936
PS		 876 case IPPROTO_ICMPV6:
877 return "icmp6";
be7e4d20
PS		 878 }
879
880 return "???";
881}
882
c759116a
SH		 883static const char *vsock_netid_name(int type)
884{
885 switch (type) {
886 case SOCK_STREAM:
887 return "v_str";
888 case SOCK_DGRAM:
889 return "v_dgr";
890 default:
891 return "???";
892 }
893}
894
5caf79a0
GM		 895static const char *tipc_netid_name(int type)
896{
897 switch (type) {
898 case SOCK_STREAM:
899 return "ti_st";
900 case SOCK_DGRAM:
901 return "ti_dg";
902 case SOCK_RDM:
903 return "ti_rd";
904 case SOCK_SEQPACKET:
905 return "ti_sq";
906 default:
907 return "???";
908 }
909}
910
691bd854
SB		 911/* Allocate and initialize a new buffer chunk */
912static struct buf_chunk *buf_chunk_new(void)
913{
914 struct buf_chunk *new = malloc(BUF_CHUNK);
915
916 if (!new)
917 abort();
918
919 new->next = NULL;
920
921 /* This is also the last block */
922 buffer.tail = new;
923
924 /* Next token will be stored at the beginning of chunk data area, and
925 * its initial length is zero.
926 */
927 buffer.cur = (struct buf_token *)new->data;
928 buffer.cur->len = 0;
929
930 new->end = buffer.cur->data;
931
932 return new;
933}
934
935/* Return available tail room in given chunk */
936static int buf_chunk_avail(struct buf_chunk *chunk)
937{
938 return BUF_CHUNK - offsetof(struct buf_chunk, data) -
939 (chunk->end - chunk->data);
940}
941
942/* Update end pointer and token length, link new chunk if we hit the end of the
943 * current one. Return -EAGAIN if we got a new chunk, caller has to print again.
944 */
945static int buf_update(int len)
946{
947 struct buf_chunk *chunk = buffer.tail;
948 struct buf_token *t = buffer.cur;
949
950 /* Claim success if new content fits in the current chunk, and anyway
951 * if this is the first token in the chunk: in the latter case,
952 * allocating a new chunk won't help, so we'll just cut the output.
953 */
954 if ((len < buf_chunk_avail(chunk) && len != -1 /* glibc < 2.0.6 */) ||
955 t == (struct buf_token *)chunk->data) {
956 len = min(len, buf_chunk_avail(chunk));
957
958 /* Total field length can't exceed 2^16 bytes, cut as needed */
959 len = min(len, USHRT_MAX - t->len);
960
961 chunk->end += len;
962 t->len += len;
963 return 0;
964 }
965
966 /* Content truncated, time to allocate more */
967 chunk->next = buf_chunk_new();
968
969 /* Copy current token over to new chunk, including length descriptor */
970 memcpy(chunk->next->data, t, sizeof(t->len) + t->len);
971 chunk->next->end += t->len;
972
973 /* Discard partially written field in old chunk */
974 chunk->end -= t->len + sizeof(t->len);
975
976 return -EAGAIN;
977}
978
979/* Append content to buffer as part of the current field */
90351722
SB		 980static void out(const char *fmt, ...)
981{
59f46b7b 982 struct column *f = current_field;
90351722 983 va_list args;
691bd854
SB		 984 char *pos;
985 int len;
986
87b1a7ae 987 if (f->disabled)
691bd854
SB		 988 return;
989
990 if (!buffer.head)
991 buffer.head = buf_chunk_new();
992
993again: /* Append to buffer: if we have a new chunk, print again */
90351722 994
691bd854 995 pos = buffer.cur->data + buffer.cur->len;
90351722 996 va_start(args, fmt);
691bd854
SB		 997
998 /* Limit to tail room. If we hit the limit, buf_update() will tell us */
999 len = vsnprintf(pos, buf_chunk_avail(buffer.tail), fmt, args);
90351722 1000 va_end(args);
691bd854
SB		 1001
1002 if (buf_update(len))
1003 goto again;
90351722
SB		 1004}
1005
691bd854 1006static int print_left_spacing(struct column *f, int stored, int printed)
59f46b7b
SB		 1007{
1008 int s;
1009
87b1a7ae 1010 if (!f->width || f->align == ALIGN_LEFT)
59f46b7b
SB		 1011 return 0;
1012
691bd854 1013 s = f->width - stored - printed;
59f46b7b
SB		 1014 if (f->align == ALIGN_CENTER)
1015 /* If count of total spacing is odd, shift right by one */
1016 s = (s + 1) / 2;
1017
1018 if (s > 0)
1019 return printf("%*c", s, ' ');
1020
1021 return 0;
1022}
1023
691bd854 1024static void print_right_spacing(struct column *f, int printed)
59f46b7b
SB		 1025{
1026 int s;
1027
87b1a7ae 1028 if (!f->width || f->align == ALIGN_RIGHT)
59f46b7b
SB		 1029 return;
1030
691bd854 1031 s = f->width - printed;
59f46b7b
SB		 1032 if (f->align == ALIGN_CENTER)
1033 s /= 2;
1034
1035 if (s > 0)
1036 printf("%*c", s, ' ');
1037}
1038
691bd854 1039/* Done with field: update buffer pointer, start new token after current one */
59f46b7b
SB		 1040static void field_flush(struct column *f)
1041{
192be8fc
AQ		 1042 struct buf_chunk *chunk;
1043 unsigned int pad;
691bd854 1044
87b1a7ae 1045 if (f->disabled)
59f46b7b
SB		 1046 return;
1047
192be8fc
AQ		 1048 chunk = buffer.tail;
1049 pad = buffer.cur->len % 2;
1050
87b1a7ae
SB		 1051 if (buffer.cur->len > f->max_len)
1052 f->max_len = buffer.cur->len;
1053
691bd854
SB		 1054 /* We need a new chunk if we can't store the next length descriptor.
1055 * Mind the gap between end of previous token and next aligned position
1056 * for length descriptor.
1057 */
1058 if (buf_chunk_avail(chunk) - pad < sizeof(buffer.cur->len)) {
1059 chunk->end += pad;
1060 chunk->next = buf_chunk_new();
1061 return;
1062 }
59f46b7b 1063
691bd854
SB		 1064 buffer.cur = (struct buf_token *)(buffer.cur->data +
1065 LEN_ALIGN(buffer.cur->len));
1066 buffer.cur->len = 0;
1067 buffer.tail->end = buffer.cur->data;
59f46b7b
SB		 1068}
1069
1070static int field_is_last(struct column *f)
1071{
1072 return f - columns == COL_MAX - 1;
1073}
1074
1075static void field_next(void)
1076{
1077 field_flush(current_field);
1078
691bd854 1079 if (field_is_last(current_field))
59f46b7b 1080 current_field = columns;
691bd854 1081 else
59f46b7b 1082 current_field++;
59f46b7b
SB		 1083}
1084
1085/* Walk through fields and flush them until we reach the desired one */
1086static void field_set(enum col_id id)
1087{
1088 while (id != current_field - columns)
1089 field_next();
1090}
1091
1092/* Print header for all non-empty columns */
1093static void print_header(void)
1094{
1095 while (!field_is_last(current_field)) {
87b1a7ae 1096 if (!current_field->disabled)
59f46b7b
SB		 1097 out(current_field->header);
1098 field_next();
1099 }
1100}
1101
691bd854
SB		 1102/* Get the next available token in the buffer starting from the current token */
1103static struct buf_token *buf_token_next(struct buf_token *cur)
1104{
1105 struct buf_chunk *chunk = buffer.tail;
1106
1107 /* If we reached the end of chunk contents, get token from next chunk */
1108 if (cur->data + LEN_ALIGN(cur->len) == chunk->end) {
1109 buffer.tail = chunk = chunk->next;
1110 return chunk ? (struct buf_token *)chunk->data : NULL;
1111 }
1112
1113 return (struct buf_token *)(cur->data + LEN_ALIGN(cur->len));
1114}
1115
1116/* Free up all allocated buffer chunks */
1117static void buf_free_all(void)
1118{
1119 struct buf_chunk *tmp;
1120
1121 for (buffer.tail = buffer.head; buffer.tail; ) {
1122 tmp = buffer.tail;
1123 buffer.tail = buffer.tail->next;
1124 free(tmp);
1125 }
1126 buffer.head = NULL;
1127}
1128
32ea3d54
SB		 1129/* Get current screen width, default to 80 columns if TIOCGWINSZ fails */
1130static int render_screen_width(void)
1131{
1132 int width = 80;
1133
1134 if (isatty(STDOUT_FILENO)) {
1135 struct winsize w;
1136
1137 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) {
1138 if (w.ws_col > 0)
1139 width = w.ws_col;
1140 }
1141 }
1142
1143 return width;
1144}
1145
87b1a7ae
SB		 1146/* Calculate column width from contents length. If columns don't fit on one
1147 * line, break them into the least possible amount of lines and keep them
1148 * aligned across lines. Available screen space is equally spread between fields
1149 * as additional spacing.
1150 */
32ea3d54 1151static void render_calc_width(void)
87b1a7ae 1152{
32ea3d54 1153 int screen_width = render_screen_width();
87b1a7ae 1154 struct column *c, *eol = columns - 1;
32ea3d54 1155 int first, len = 0, linecols = 0;
87b1a7ae
SB		 1156
1157 /* First pass: set width for each column to measured content length */
1158 for (first = 1, c = columns; c - columns < COL_MAX; c++) {
1159 if (c->disabled)
1160 continue;
1161
1162 if (!first && c->max_len)
1163 c->width = c->max_len + strlen(c->ldelim);
1164 else
1165 c->width = c->max_len;
1166
1167 /* But don't exceed screen size. If we exceed the screen size
1168 * for even a single field, it will just start on a line of its
1169 * own and then naturally wrap.
1170 */
1171 c->width = min(c->width, screen_width);
1172
1173 if (c->width)
1174 first = 0;
1175 }
1176
1177 /* Second pass: find out newlines and distribute available spacing */
1178 for (c = columns; c - columns < COL_MAX; c++) {
1179 int pad, spacing, rem, last;
1180 struct column *tmp;
1181
1182 if (!c->width)
1183 continue;
1184
1185 linecols++;
1186 len += c->width;
1187
1188 for (last = 1, tmp = c + 1; tmp - columns < COL_MAX; tmp++) {
1189 if (tmp->width) {
1190 last = 0;
1191 break;
1192 }
1193 }
1194
1195 if (!last && len < screen_width) {
1196 /* Columns fit on screen so far, nothing to do yet */
1197 continue;
1198 }
1199
1200 if (len == screen_width) {
1201 /* Exact fit, just start with new line */
1202 goto newline;
1203 }
1204
1205 if (len > screen_width) {
1206 /* Screen width exceeded: go back one column */
1207 len -= c->width;
1208 c--;
1209 linecols--;
1210 }
1211
1212 /* Distribute remaining space to columns on this line */
1213 pad = screen_width - len;
1214 spacing = pad / linecols;
1215 rem = pad % linecols;
1216 for (tmp = c; tmp > eol; tmp--) {
1217 if (!tmp->width)
1218 continue;
1219
1220 tmp->width += spacing;
1221 if (rem) {
1222 tmp->width++;
1223 rem--;
1224 }
1225 }
1226
1227newline:
1228 /* Line break: reset line counters, mark end-of-line */
1229 eol = c;
1230 len = 0;
1231 linecols = 0;
1232 }
1233}
1234
691bd854 1235/* Render buffered output with spacing and delimiters, then free up buffers */
32ea3d54 1236static void render(void)
691bd854 1237{
eb8559ef 1238 struct buf_token *token;
87b1a7ae 1239 int printed, line_started = 0;
691bd854
SB		 1240 struct column *f;
1241
eb8559ef
JPB		 1242 if (!buffer.head)
1243 return;
1244
1245 token = (struct buf_token *)buffer.head->data;
1246
691bd854
SB		 1247 /* Ensure end alignment of last token, it wasn't necessarily flushed */
1248 buffer.tail->end += buffer.cur->len % 2;
1249
32ea3d54 1250 render_calc_width();
87b1a7ae 1251
691bd854
SB		 1252 /* Rewind and replay */
1253 buffer.tail = buffer.head;
1254
1255 f = columns;
1256 while (!f->width)
1257 f++;
1258
1259 while (token) {
1260 /* Print left delimiter only if we already started a line */
1261 if (line_started++)
1262 printed = printf("%s", current_field->ldelim);
1263 else
1264 printed = 0;
1265
1266 /* Print field content from token data with spacing */
1267 printed += print_left_spacing(f, token->len, printed);
1268 printed += fwrite(token->data, 1, token->len, stdout);
1269 print_right_spacing(f, printed);
1270
691bd854
SB		 1271 /* Go to next non-empty field, deal with end-of-line */
1272 do {
1273 if (field_is_last(f)) {
87b1a7ae 1274 printf("\n");
691bd854
SB		 1275 f = columns;
1276 line_started = 0;
1277 } else {
1278 f++;
1279 }
87b1a7ae 1280 } while (f->disabled);
691bd854
SB		 1281
1282 token = buf_token_next(token);
1283 }
1284
1285 buf_free_all();
32ea3d54 1286 current_field = columns;
691bd854
SB		 1287}
1288
be7e4d20
PS		 1289static void sock_state_print(struct sockstat *s)
1290{
1291 const char *sock_name;
1882c0db
PS		 1292 static const char * const sstate_name[] = {
1293 "UNKNOWN",
1294 [SS_ESTABLISHED] = "ESTAB",
1295 [SS_SYN_SENT] = "SYN-SENT",
1296 [SS_SYN_RECV] = "SYN-RECV",
1297 [SS_FIN_WAIT1] = "FIN-WAIT-1",
1298 [SS_FIN_WAIT2] = "FIN-WAIT-2",
1299 [SS_TIME_WAIT] = "TIME-WAIT",
1300 [SS_CLOSE] = "UNCONN",
1301 [SS_CLOSE_WAIT] = "CLOSE-WAIT",
1302 [SS_LAST_ACK] = "LAST-ACK",
1303 [SS_LISTEN] = "LISTEN",
1304 [SS_CLOSING] = "CLOSING",
1305 };
be7e4d20
PS		 1306
1307 switch (s->local.family) {
1308 case AF_UNIX:
1309 sock_name = unix_netid_name(s->type);
1310 break;
1311 case AF_INET:
1312 case AF_INET6:
1313 sock_name = proto_name(s->type);
1314 break;
1315 case AF_PACKET:
1316 sock_name = s->type == SOCK_RAW ? "p_raw" : "p_dgr";
1317 break;
1318 case AF_NETLINK:
1319 sock_name = "nl";
1320 break;
5caf79a0
GM		 1321 case AF_TIPC:
1322 sock_name = tipc_netid_name(s->type);
1323 break;
c759116a
SH		 1324 case AF_VSOCK:
1325 sock_name = vsock_netid_name(s->type);
1326 break;
be7e4d20
PS		 1327 default:
1328 sock_name = "unknown";
1329 }
1330
59f46b7b
SB		 1331 if (is_sctp_assoc(s, sock_name)) {
1332 field_set(COL_STATE); /* Empty Netid field */
1333 out("`- %s", sctp_sstate_name[s->state]);
1334 } else {
1335 field_set(COL_NETID);
1336 out("%s", sock_name);
1337 field_set(COL_STATE);
1338 out("%s", sstate_name[s->state]);
f89d46ad 1339 }
2d791bc8 1340
59f46b7b
SB		 1341 field_set(COL_RECVQ);
1342 out("%-6d", s->rq);
1343 field_set(COL_SENDQ);
1344 out("%-6d", s->wq);
1345 field_set(COL_ADDR);
2d791bc8
VK		 1346}
1347
f1b39e1b
VK		 1348static void sock_details_print(struct sockstat *s)
1349{
1350 if (s->uid)
90351722 1351 out(" uid:%u", s->uid);
f1b39e1b 1352
90351722
SB		 1353 out(" ino:%u", s->ino);
1354 out(" sk:%llx", s->sk);
ec75249b
LC		 1355
1356 if (s->mark)
90351722 1357 out(" fwmark:0x%x", s->mark);
f1b39e1b
VK		 1358}
1359
b217df10
VK		 1360static void sock_addr_print(const char *addr, char *delim, const char *port,
1361 const char *ifname)
1362{
59f46b7b
SB		 1363 if (ifname)
1364 out("%s" "%%" "%s%s", addr, ifname, delim);
1365 else
1366 out("%s%s", addr, delim);
1367
1368 field_next();
1369 out("%s", port);
1370 field_next();
b217df10
VK		 1371}
1372
4cbf5224 1373static const char *print_ms_timer(unsigned int timeout)
aba5acdf
SH		 1374{
1375 static char buf[64];
1376 int secs, msecs, minutes;
acd1e437 1377
aba5acdf
SH		 1378 secs = timeout/1000;
1379 minutes = secs/60;
1380 secs = secs%60;
1381 msecs = timeout%1000;
1382 buf[0] = 0;
1383 if (minutes) {
1384 msecs = 0;
1385 snprintf(buf, sizeof(buf)-16, "%dmin", minutes);
1386 if (minutes > 9)
1387 secs = 0;
1388 }
1389 if (secs) {
1390 if (secs > 9)
1391 msecs = 0;
1392 sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec");
1393 }
1394 if (msecs)
1395 sprintf(buf+strlen(buf), "%03dms", msecs);
1396 return buf;
e7113c61 1397}
aba5acdf 1398
22588a0e 1399struct scache {
aba5acdf
SH		 1400 struct scache *next;
1401 int port;
1402 char *name;
1403 const char *proto;
1404};
1405
1406struct scache *rlist;
1407
d1f28cf1 1408static void init_service_resolver(void)
aba5acdf
SH		 1409{
1410 char buf[128];
1411 FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
596307ea
PS		 1412
1413 if (!fp)
1414 return;
1415
1416 if (!fgets(buf, sizeof(buf), fp)) {
2bcc3c16 1417 pclose(fp);
596307ea
PS		 1418 return;
1419 }
1420 while (fgets(buf, sizeof(buf), fp) != NULL) {
1421 unsigned int progn, port;
1422 char proto[128], prog[128] = "rpc.";
1423 struct scache *c;
1424
1425 if (sscanf(buf, "%u %*d %s %u %s",
acd1e437 1426 &progn, proto, &port, prog+4) != 4)
596307ea
PS		 1427 continue;
1428
1429 if (!(c = malloc(sizeof(*c))))
1430 continue;
1431
1432 c->port = port;
1433 c->name = strdup(prog);
1434 if (strcmp(proto, TCP_PROTO) == 0)
1435 c->proto = TCP_PROTO;
1436 else if (strcmp(proto, UDP_PROTO) == 0)
1437 c->proto = UDP_PROTO;
f89d46ad
PS		 1438 else if (strcmp(proto, SCTP_PROTO) == 0)
1439 c->proto = SCTP_PROTO;
596307ea
PS		 1440 else
1441 c->proto = NULL;
1442 c->next = rlist;
1443 rlist = c;
aba5acdf 1444 }
596307ea 1445 pclose(fp);
aba5acdf
SH		 1446}
1447
ab61159a
SH		 1448/* Even do not try default linux ephemeral port ranges:
1449 * default /etc/services contains so much of useless crap
1450 * wouldbe "allocated" to this area that resolution
1451 * is really harmful. I shrug each time when seeing
1452 * "socks" or "cfinger" in dumps.
1453 */
1454static int is_ephemeral(int port)
1455{
acd1e437 1456 static int min = 0, max;
c29d3792
PS		 1457
1458 if (!min) {
ab01dbbb 1459 FILE *f = ephemeral_ports_open();
acd1e437 1460
c29d3792
PS		 1461 if (!f || fscanf(f, "%d %d", &min, &max) < 2) {
1462 min = 1024;
1463 max = 4999;
ab61159a 1464 }
c29d3792
PS		 1465 if (f)
1466 fclose(f);
ab61159a 1467 }
c29d3792 1468 return port >= min && port <= max;
ab61159a
SH		 1469}
1470
1471
d1f28cf1 1472static const char *__resolve_service(int port)
aba5acdf
SH		 1473{
1474 struct scache *c;
1475
1476 for (c = rlist; c; c = c->next) {
1477 if (c->port == port && c->proto == dg_proto)
1478 return c->name;
1479 }
1480
ab61159a 1481 if (!is_ephemeral(port)) {
aba5acdf
SH		 1482 static int notfirst;
1483 struct servent *se;
acd1e437 1484
aba5acdf
SH		 1485 if (!notfirst) {
1486 setservent(1);
1487 notfirst = 1;
ae665a52 1488 }
aba5acdf
SH		 1489 se = getservbyport(htons(port), dg_proto);
1490 if (se)
1491 return se->s_name;
1492 }
1493
1494 return NULL;
1495}
1496
22588a0e
ED		 1497#define SCACHE_BUCKETS 1024
1498static struct scache *cache_htab[SCACHE_BUCKETS];
aba5acdf 1499
d1f28cf1 1500static const char *resolve_service(int port)
aba5acdf
SH		 1501{
1502 static char buf[128];
22588a0e
ED		 1503 struct scache *c;
1504 const char *res;
1505 int hash;
aba5acdf
SH		 1506
1507 if (port == 0) {
1508 buf[0] = '*';
1509 buf[1] = 0;
1510 return buf;
1511 }
1512
22588a0e
ED		 1513 if (!resolve_services)
1514 goto do_numeric;
aba5acdf 1515
22588a0e
ED		 1516 if (dg_proto == RAW_PROTO)
1517 return inet_proto_n2a(port, buf, sizeof(buf));
1518
1519
1520 hash = (port^(((unsigned long)dg_proto)>>2)) % SCACHE_BUCKETS;
1521
1522 for (c = cache_htab[hash]; c; c = c->next) {
1523 if (c->port == port && c->proto == dg_proto)
1524 goto do_cache;
aba5acdf
SH		 1525 }
1526
22588a0e
ED		 1527 c = malloc(sizeof(*c));
1528 if (!c)
1529 goto do_numeric;
1530 res = __resolve_service(port);
1531 c->port = port;
1532 c->name = res ? strdup(res) : NULL;
1533 c->proto = dg_proto;
1534 c->next = cache_htab[hash];
1535 cache_htab[hash] = c;
1536
1537do_cache:
1538 if (c->name)
1539 return c->name;
1540
1541do_numeric:
aba5acdf
SH		 1542 sprintf(buf, "%u", port);
1543 return buf;
1544}
1545
1267c0b9
PS		 1546static void inet_addr_print(const inet_prefix *a, int port,
1547 unsigned int ifindex, bool v6only)
aba5acdf
SH		 1548{
1549 char buf[1024];
1550 const char *ap = buf;
b217df10 1551 const char *ifname = NULL;
aba5acdf
SH		 1552
1553 if (a->family == AF_INET) {
1267c0b9 1554 ap = format_host(AF_INET, 4, a->data);
aba5acdf 1555 } else {
1267c0b9
PS		 1556 if (!v6only &&
1557 !memcmp(a->data, &in6addr_any, sizeof(in6addr_any))) {
aba9c23a
SH		 1558 buf[0] = '*';
1559 buf[1] = 0;
1560 } else {
1561 ap = format_host(a->family, 16, a->data);
1562
1563 /* Numeric IPv6 addresses should be bracketed */
1564 if (strchr(ap, ':')) {
1565 snprintf(buf, sizeof(buf),
1566 "[%s]", ap);
1567 ap = buf;
1568 }
aba9c23a 1569 }
aba5acdf 1570 }
b217df10 1571
59f46b7b
SB		 1572 if (ifindex)
1573 ifname = ll_index_to_name(ifindex);
7c8a3cfb 1574
59f46b7b 1575 sock_addr_print(ap, ":", resolve_service(port), ifname);
aba5acdf
SH		 1576}
1577
acd1e437 1578struct aafilter {
aba5acdf
SH		 1579 inet_prefix addr;
1580 int port;
2d293212 1581 unsigned int iface;
ec75249b
LC		 1582 __u32 mark;
1583 __u32 mask;
aba5acdf
SH		 1584 struct aafilter *next;
1585};
1586
d1f28cf1
SH		 1587static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p,
1588 int plen)
aba5acdf
SH		 1589{
1590 if (!inet_addr_match(a, p, plen))
1591 return 0;
7d105b56 1592
aba5acdf
SH		 1593 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1594 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1595 * sockets. Fair? */
1596 if (p->family == AF_INET && a->family == AF_INET6) {
1597 if (a->data[0] == 0 && a->data[1] == 0 &&
1598 a->data[2] == htonl(0xffff)) {
1599 inet_prefix tmp = *a;
acd1e437 1600
aba5acdf
SH		 1601 tmp.data[0] = a->data[3];
1602 return inet_addr_match(&tmp, p, plen);
1603 }
1604 }
1605 return 1;
1606}
1607
d1f28cf1 1608static int unix_match(const inet_prefix *a, const inet_prefix *p)
aba5acdf 1609{
99bb68ff 1610 char *addr, *pattern;
acd1e437 1611
99bb68ff
VK		 1612 memcpy(&addr, a->data, sizeof(addr));
1613 memcpy(&pattern, p->data, sizeof(pattern));
aba5acdf
SH		 1614 if (pattern == NULL)
1615 return 1;
1616 if (addr == NULL)
1617 addr = "";
1618 return !fnmatch(pattern, addr, 0);
1619}
1620
055840f2 1621static int run_ssfilter(struct ssfilter *f, struct sockstat *s)
aba5acdf
SH		 1622{
1623 switch (f->type) {
1624 case SSF_S_AUTO:
1625 {
aba5acdf 1626 if (s->local.family == AF_UNIX) {
99bb68ff 1627 char *p;
acd1e437 1628
99bb68ff 1629 memcpy(&p, s->local.data, sizeof(p));
aba5acdf 1630 return p == NULL || (p[0] == '@' && strlen(p) == 6 &&
ae665a52 1631 strspn(p+1, "0123456789abcdef") == 5);
aba5acdf
SH		 1632 }
1633 if (s->local.family == AF_PACKET)
bbd303d1 1634 return s->lport == 0 && s->local.data[0] == 0;
aba5acdf
SH		 1635 if (s->local.family == AF_NETLINK)
1636 return s->lport < 0;
c759116a
SH		 1637 if (s->local.family == AF_VSOCK)
1638 return s->lport > 1023;
aba5acdf 1639
c29d3792 1640 return is_ephemeral(s->lport);
aba5acdf
SH		 1641 }
1642 case SSF_DCOND:
1643 {
acd1e437
SH		 1644 struct aafilter *a = (void *)f->pred;
1645
aba5acdf
SH		 1646 if (a->addr.family == AF_UNIX)
1647 return unix_match(&s->remote, &a->addr);
1648 if (a->port != -1 && a->port != s->rport)
1649 return 0;
1650 if (a->addr.bitlen) {
1651 do {
1652 if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen))
1653 return 1;
1654 } while ((a = a->next) != NULL);
1655 return 0;
1656 }
1657 return 1;
1658 }
1659 case SSF_SCOND:
1660 {
acd1e437
SH		 1661 struct aafilter *a = (void *)f->pred;
1662
aba5acdf
SH		 1663 if (a->addr.family == AF_UNIX)
1664 return unix_match(&s->local, &a->addr);
1665 if (a->port != -1 && a->port != s->lport)
1666 return 0;
1667 if (a->addr.bitlen) {
1668 do {
1669 if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen))
1670 return 1;
ae665a52 1671 } while ((a = a->next) != NULL);
aba5acdf
SH		 1672 return 0;
1673 }
1674 return 1;
1675 }
1676 case SSF_D_GE:
1677 {
acd1e437
SH		 1678 struct aafilter *a = (void *)f->pred;
1679
aba5acdf
SH		 1680 return s->rport >= a->port;
1681 }
1682 case SSF_D_LE:
1683 {
acd1e437
SH		 1684 struct aafilter *a = (void *)f->pred;
1685
aba5acdf
SH		 1686 return s->rport <= a->port;
1687 }
1688 case SSF_S_GE:
1689 {
acd1e437
SH		 1690 struct aafilter *a = (void *)f->pred;
1691
aba5acdf
SH		 1692 return s->lport >= a->port;
1693 }
1694 case SSF_S_LE:
1695 {
acd1e437
SH		 1696 struct aafilter *a = (void *)f->pred;
1697
aba5acdf
SH		 1698 return s->lport <= a->port;
1699 }
2d293212
DA		 1700 case SSF_DEVCOND:
1701 {
1702 struct aafilter *a = (void *)f->pred;
aba5acdf 1703
2d293212 1704 return s->iface == a->iface;
ec75249b
LC		 1705 }
1706 case SSF_MARKMASK:
1707 {
1708 struct aafilter *a = (void *)f->pred;
1709
1710 return (s->mark & a->mask) == a->mark;
2d293212 1711 }
aba5acdf
SH		 1712 /* Yup. It is recursion. Sorry. */
1713 case SSF_AND:
1714 return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s);
1715 case SSF_OR:
1716 return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s);
1717 case SSF_NOT:
1718 return !run_ssfilter(f->pred, s);
1719 default:
1720 abort();
1721 }
1722}
1723
ae665a52 1724/* Relocate external jumps by reloc. */
b4b0b7d5 1725static void ssfilter_patch(char *a, int len, int reloc)
aba5acdf
SH		 1726{
1727 while (len > 0) {
acd1e437
SH		 1728 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)a;
1729
aba5acdf
SH		 1730 if (op->no == len+4)
1731 op->no += reloc;
1732 len -= op->yes;
1733 a += op->yes;
1734 }
1735 if (len < 0)
1736 abort();
1737}
1738
b4b0b7d5 1739static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
aba5acdf
SH		 1740{
1741 switch (f->type) {
1742 case SSF_S_AUTO:
1743 {
acd1e437
SH		 1744 if (!(*bytecode = malloc(4))) abort();
1745 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
df39de8d 1746 return 4;
aba5acdf
SH		 1747 }
1748 case SSF_DCOND:
1749 case SSF_SCOND:
1750 {
acd1e437 1751 struct aafilter *a = (void *)f->pred;
aba5acdf
SH		 1752 struct aafilter *b;
1753 char *ptr;
351efcde 1754 int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND);
aba5acdf
SH		 1755 int len = 0;
1756
acd1e437 1757 for (b = a; b; b = b->next) {
351efcde 1758 len += 4 + sizeof(struct inet_diag_hostcond);
aba5acdf
SH		 1759 if (a->addr.family == AF_INET6)
1760 len += 16;
1761 else
1762 len += 4;
1763 if (b->next)
1764 len += 4;
1765 }
1766 if (!(ptr = malloc(len))) abort();
1767 *bytecode = ptr;
acd1e437 1768 for (b = a; b; b = b->next) {
351efcde 1769 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr;
aba5acdf 1770 int alen = (a->addr.family == AF_INET6 ? 16 : 4);
351efcde 1771 int oplen = alen + 4 + sizeof(struct inet_diag_hostcond);
acd1e437 1772 struct inet_diag_hostcond *cond = (struct inet_diag_hostcond *)(ptr+4);
aba5acdf 1773
351efcde 1774 *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 };
aba5acdf
SH		 1775 cond->family = a->addr.family;
1776 cond->port = a->port;
1777 cond->prefix_len = a->addr.bitlen;
1778 memcpy(cond->addr, a->addr.data, alen);
1779 ptr += oplen;
1780 if (b->next) {
351efcde
SH		 1781 op = (struct inet_diag_bc_op *)ptr;
1782 *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)};
aba5acdf
SH		 1783 ptr += 4;
1784 }
1785 }
1786 return ptr - *bytecode;
1787 }
1788 case SSF_D_GE:
1789 {
acd1e437
SH		 1790 struct aafilter *x = (void *)f->pred;
1791
1792 if (!(*bytecode = malloc(8))) abort();
1793 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 };
1794 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1795 return 8;
1796 }
1797 case SSF_D_LE:
1798 {
acd1e437
SH		 1799 struct aafilter *x = (void *)f->pred;
1800
1801 if (!(*bytecode = malloc(8))) abort();
1802 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 };
1803 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1804 return 8;
1805 }
1806 case SSF_S_GE:
1807 {
acd1e437
SH		 1808 struct aafilter *x = (void *)f->pred;
1809
1810 if (!(*bytecode = malloc(8))) abort();
1811 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 };
1812 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1813 return 8;
1814 }
1815 case SSF_S_LE:
1816 {
acd1e437
SH		 1817 struct aafilter *x = (void *)f->pred;
1818
1819 if (!(*bytecode = malloc(8))) abort();
1820 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 };
1821 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1822 return 8;
1823 }
1824
1825 case SSF_AND:
1826 {
376fb868 1827 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1828 int l1, l2;
acd1e437 1829
aba5acdf
SH		 1830 l1 = ssfilter_bytecompile(f->pred, &a1);
1831 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1832 if (!l1 || !l2) {
1833 free(a1);
1834 free(a2);
1835 return 0;
1836 }
aba5acdf
SH		 1837 if (!(a = malloc(l1+l2))) abort();
1838 memcpy(a, a1, l1);
1839 memcpy(a+l1, a2, l2);
1840 free(a1); free(a2);
1841 ssfilter_patch(a, l1, l2);
1842 *bytecode = a;
1843 return l1+l2;
1844 }
1845 case SSF_OR:
1846 {
376fb868 1847 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1848 int l1, l2;
acd1e437 1849
aba5acdf
SH		 1850 l1 = ssfilter_bytecompile(f->pred, &a1);
1851 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1852 if (!l1 || !l2) {
1853 free(a1);
1854 free(a2);
1855 return 0;
1856 }
aba5acdf
SH		 1857 if (!(a = malloc(l1+l2+4))) abort();
1858 memcpy(a, a1, l1);
1859 memcpy(a+l1+4, a2, l2);
1860 free(a1); free(a2);
acd1e437 1861 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 };
aba5acdf
SH		 1862 *bytecode = a;
1863 return l1+l2+4;
1864 }
1865 case SSF_NOT:
1866 {
376fb868 1867 char *a1 = NULL, *a;
2a4fa1c3 1868 int l1;
acd1e437 1869
aba5acdf 1870 l1 = ssfilter_bytecompile(f->pred, &a1);
376fb868
DA		 1871 if (!l1) {
1872 free(a1);
1873 return 0;
1874 }
aba5acdf
SH		 1875 if (!(a = malloc(l1+4))) abort();
1876 memcpy(a, a1, l1);
1877 free(a1);
acd1e437 1878 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 };
aba5acdf
SH		 1879 *bytecode = a;
1880 return l1+4;
2d293212
DA		 1881 }
1882 case SSF_DEVCOND:
1883 {
1884 /* bytecompile for SSF_DEVCOND not supported yet */
1885 return 0;
ec75249b
LC		 1886 }
1887 case SSF_MARKMASK:
1888 {
1889 struct aafilter *a = (void *)f->pred;
1890 struct instr {
1891 struct inet_diag_bc_op op;
1892 struct inet_diag_markcond cond;
1893 };
1894 int inslen = sizeof(struct instr);
1895
1896 if (!(*bytecode = malloc(inslen))) abort();
1897 ((struct instr *)*bytecode)[0] = (struct instr) {
1898 { INET_DIAG_BC_MARK_COND, inslen, inslen + 4 },
1899 { a->mark, a->mask},
1900 };
1901
1902 return inslen;
aba5acdf
SH		 1903 }
1904 default:
1905 abort();
1906 }
1907}
1908
b4b0b7d5 1909static int remember_he(struct aafilter *a, struct hostent *he)
aba5acdf 1910{
ae665a52 1911 char **ptr = he->h_addr_list;
aba5acdf
SH		 1912 int cnt = 0;
1913 int len;
1914
1915 if (he->h_addrtype == AF_INET)
1916 len = 4;
1917 else if (he->h_addrtype == AF_INET6)
1918 len = 16;
1919 else
1920 return 0;
1921
1922 while (*ptr) {
1923 struct aafilter *b = a;
acd1e437 1924
aba5acdf
SH		 1925 if (a->addr.bitlen) {
1926 if ((b = malloc(sizeof(*b))) == NULL)
1927 return cnt;
1928 *b = *a;
aba5acdf
SH		 1929 a->next = b;
1930 }
1931 memcpy(b->addr.data, *ptr, len);
1932 b->addr.bytelen = len;
1933 b->addr.bitlen = len*8;
1934 b->addr.family = he->h_addrtype;
1935 ptr++;
1936 cnt++;
1937 }
1938 return cnt;
1939}
1940
b4b0b7d5 1941static int get_dns_host(struct aafilter *a, const char *addr, int fam)
aba5acdf
SH		 1942{
1943 static int notfirst;
1944 int cnt = 0;
1945 struct hostent *he;
1946
1947 a->addr.bitlen = 0;
1948 if (!notfirst) {
1949 sethostent(1);
1950 notfirst = 1;
1951 }
1952 he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam);
1953 if (he)
1954 cnt = remember_he(a, he);
1955 if (fam == AF_UNSPEC) {
1956 he = gethostbyname2(addr, AF_INET6);
1957 if (he)
1958 cnt += remember_he(a, he);
1959 }
1960 return !cnt;
1961}
1962
acd1e437 1963static int xll_initted;
aba5acdf 1964
b4b0b7d5 1965static void xll_init(void)
aba5acdf
SH		 1966{
1967 struct rtnl_handle rth;
acd1e437 1968
d2468da0
SH		 1969 if (rtnl_open(&rth, 0) < 0)
1970 exit(1);
1971
aba5acdf
SH		 1972 ll_init_map(&rth);
1973 rtnl_close(&rth);
1974 xll_initted = 1;
1975}
1976
b4b0b7d5 1977static const char *xll_index_to_name(int index)
aba5acdf
SH		 1978{
1979 if (!xll_initted)
1980 xll_init();
1981 return ll_index_to_name(index);
1982}
1983
b4b0b7d5 1984static int xll_name_to_index(const char *dev)
aba5acdf
SH		 1985{
1986 if (!xll_initted)
1987 xll_init();
1988 return ll_name_to_index(dev);
1989}
1990
2d293212
DA		 1991void *parse_devcond(char *name)
1992{
1993 struct aafilter a = { .iface = 0 };
1994 struct aafilter *res;
1995
1996 a.iface = xll_name_to_index(name);
1997 if (a.iface == 0) {
1998 char *end;
930d3f28 1999 unsigned long n;
2d293212 2000
930d3f28
DA		 2001 n = strtoul(name, &end, 0);
2002 if (!end || end == name || *end || n > UINT_MAX)
2d293212 2003 return NULL;
930d3f28
DA		 2004
2005 a.iface = n;
2d293212
DA		 2006 }
2007
2008 res = malloc(sizeof(*res));
2009 *res = a;
2010
2011 return res;
2012}
2013
c759116a
SH		 2014static void vsock_set_inet_prefix(inet_prefix *a, __u32 cid)
2015{
2016 *a = (inet_prefix){
2017 .bytelen = sizeof(cid),
2018 .family = AF_VSOCK,
2019 };
2020 memcpy(a->data, &cid, sizeof(cid));
2021}
2022
7871f7db 2023void *parse_hostcond(char *addr, bool is_port)
aba5acdf
SH		 2024{
2025 char *port = NULL;
1527a17e 2026 struct aafilter a = { .port = -1 };
aba5acdf 2027 struct aafilter *res;
1527a17e 2028 int fam = preferred_family;
9db7bf15 2029 struct filter *f = &current_filter;
aba5acdf 2030
1527a17e 2031 if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) {
aba5acdf 2032 char *p;
acd1e437 2033
aba5acdf
SH		 2034 a.addr.family = AF_UNIX;
2035 if (strncmp(addr, "unix:", 5) == 0)
acd1e437 2036 addr += 5;
aba5acdf
SH		 2037 p = strdup(addr);
2038 a.addr.bitlen = 8*strlen(p);
99bb68ff 2039 memcpy(a.addr.data, &p, sizeof(p));
9db7bf15 2040 fam = AF_UNIX;
aba5acdf
SH		 2041 goto out;
2042 }
2043
1527a17e 2044 if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) {
aba5acdf
SH		 2045 a.addr.family = AF_PACKET;
2046 a.addr.bitlen = 0;
2047 if (strncmp(addr, "link:", 5) == 0)
acd1e437 2048 addr += 5;
aba5acdf
SH		 2049 port = strchr(addr, ':');
2050 if (port) {
2051 *port = 0;
2052 if (port[1] && strcmp(port+1, "*")) {
2053 if (get_integer(&a.port, port+1, 0)) {
2054 if ((a.port = xll_name_to_index(port+1)) <= 0)
2055 return NULL;
2056 }
2057 }
2058 }
2059 if (addr[0] && strcmp(addr, "*")) {
2060 unsigned short tmp;
acd1e437 2061
aba5acdf
SH		 2062 a.addr.bitlen = 32;
2063 if (ll_proto_a2n(&tmp, addr))
2064 return NULL;
2065 a.addr.data[0] = ntohs(tmp);
2066 }
9db7bf15 2067 fam = AF_PACKET;
aba5acdf
SH		 2068 goto out;
2069 }
2070
1527a17e 2071 if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) {
aba5acdf
SH		 2072 a.addr.family = AF_NETLINK;
2073 a.addr.bitlen = 0;
2074 if (strncmp(addr, "netlink:", 8) == 0)
acd1e437 2075 addr += 8;
aba5acdf
SH		 2076 port = strchr(addr, ':');
2077 if (port) {
2078 *port = 0;
2079 if (port[1] && strcmp(port+1, "*")) {
2080 if (get_integer(&a.port, port+1, 0)) {
2081 if (strcmp(port+1, "kernel") == 0)
2082 a.port = 0;
2083 else
2084 return NULL;
2085 }
2086 }
2087 }
2088 if (addr[0] && strcmp(addr, "*")) {
2089 a.addr.bitlen = 32;
b00daf6a 2090 if (nl_proto_a2n(&a.addr.data[0], addr) == -1)
2091 return NULL;
aba5acdf 2092 }
9db7bf15 2093 fam = AF_NETLINK;
aba5acdf
SH		 2094 goto out;
2095 }
2096
c759116a
SH		 2097 if (fam == AF_VSOCK || strncmp(addr, "vsock:", 6) == 0) {
2098 __u32 cid = ~(__u32)0;
2099
2100 a.addr.family = AF_VSOCK;
2101 if (strncmp(addr, "vsock:", 6) == 0)
2102 addr += 6;
2103
2104 if (is_port)
2105 port = addr;
2106 else {
2107 port = strchr(addr, ':');
2108 if (port) {
2109 *port = '\0';
2110 port++;
2111 }
2112 }
2113
2114 if (port && strcmp(port, "*") &&
2115 get_u32((__u32 *)&a.port, port, 0))
2116 return NULL;
2117
2118 if (addr[0] && strcmp(addr, "*")) {
2119 a.addr.bitlen = 32;
2120 if (get_u32(&cid, addr, 0))
2121 return NULL;
2122 }
2123 vsock_set_inet_prefix(&a.addr, cid);
2124 fam = AF_VSOCK;
2125 goto out;
2126 }
2127
1527a17e 2128 if (fam == AF_INET || !strncmp(addr, "inet:", 5)) {
aba5acdf 2129 fam = AF_INET;
1527a17e
VK		 2130 if (!strncmp(addr, "inet:", 5))
2131 addr += 5;
2132 } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) {
aba5acdf 2133 fam = AF_INET6;
1527a17e
VK		 2134 if (!strncmp(addr, "inet6:", 6))
2135 addr += 6;
aba5acdf
SH		 2136 }
2137
2138 /* URL-like literal [] */
2139 if (addr[0] == '[') {
2140 addr++;
2141 if ((port = strchr(addr, ']')) == NULL)
2142 return NULL;
2143 *port++ = 0;
2144 } else if (addr[0] == '*') {
2145 port = addr+1;
2146 } else {
2147 port = strrchr(strchr(addr, '/') ? : addr, ':');
2148 }
7871f7db
VK		 2149
2150 if (is_port)
2151 port = addr;
2152
aba5acdf 2153 if (port && *port) {
7871f7db
VK		 2154 if (*port == ':')
2155 *port++ = 0;
2156
aba5acdf
SH		 2157 if (*port && *port != '*') {
2158 if (get_integer(&a.port, port, 0)) {
2159 struct servent *se1 = NULL;
2160 struct servent *se2 = NULL;
acd1e437 2161
aba5acdf
SH		 2162 if (current_filter.dbs&(1<<UDP_DB))
2163 se1 = getservbyname(port, UDP_PROTO);
2164 if (current_filter.dbs&(1<<TCP_DB))
2165 se2 = getservbyname(port, TCP_PROTO);
2166 if (se1 && se2 && se1->s_port != se2->s_port) {
2167 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
2168 return NULL;
2169 }
2170 if (!se1)
2171 se1 = se2;
2172 if (se1) {
2173 a.port = ntohs(se1->s_port);
2174 } else {
2175 struct scache *s;
acd1e437 2176
aba5acdf
SH		 2177 for (s = rlist; s; s = s->next) {
2178 if ((s->proto == UDP_PROTO &&
2179 (current_filter.dbs&(1<<UDP_DB))) ||
2180 (s->proto == TCP_PROTO &&
2181 (current_filter.dbs&(1<<TCP_DB)))) {
2182 if (s->name && strcmp(s->name, port) == 0) {
2183 if (a.port > 0 && a.port != s->port) {
2184 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
2185 return NULL;
2186 }
2187 a.port = s->port;
2188 }
2189 }
2190 }
2191 if (a.port <= 0) {
2192 fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port);
2193 return NULL;
2194 }
2195 }
2196 }
2197 }
2198 }
44448a90 2199 if (!is_port && *addr && *addr != '*') {
aba5acdf
SH		 2200 if (get_prefix_1(&a.addr, addr, fam)) {
2201 if (get_dns_host(&a, addr, fam)) {
2202 fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr);
2203 return NULL;
2204 }
2205 }
2206 }
2207
9db7bf15 2208out:
1527a17e 2209 if (fam != AF_UNSPEC) {
e56a959e 2210 int states = f->states;
1527a17e 2211 f->families = 0;
9db7bf15 2212 filter_af_set(f, fam);
e56a959e 2213 filter_states_set(f, states);
1527a17e 2214 }
9db7bf15 2215
aba5acdf
SH		 2216 res = malloc(sizeof(*res));
2217 if (res)
2218 memcpy(res, &a, sizeof(a));
2219 return res;
2220}
2221
ec75249b
LC		 2222void *parse_markmask(const char *markmask)
2223{
2224 struct aafilter a, *res;
2225
2226 if (strchr(markmask, '/')) {
2227 if (sscanf(markmask, "%i/%i", &a.mark, &a.mask) != 2)
2228 return NULL;
2229 } else {
2230 a.mask = 0xffffffff;
2231 if (sscanf(markmask, "%i", &a.mark) != 1)
2232 return NULL;
2233 }
2234
2235 res = malloc(sizeof(*res));
2236 if (res)
2237 memcpy(res, &a, sizeof(a));
2238 return res;
2239}
2240
5f27ac1d 2241static void proc_ctx_print(struct sockstat *s)
8250bc9f 2242{
5f27ac1d 2243 char *buf;
8250bc9f 2244
8250bc9f
VK		 2245 if (show_proc_ctx || show_sock_ctx) {
2246 if (find_entry(s->ino, &buf,
2247 (show_proc_ctx & show_sock_ctx) ?
2248 PROC_SOCK_CTX : PROC_CTX) > 0) {
90351722 2249 out(" users:(%s)", buf);
8250bc9f
VK		 2250 free(buf);
2251 }
2252 } else if (show_users) {
2253 if (find_entry(s->ino, &buf, USERS) > 0) {
90351722 2254 out(" users:(%s)", buf);
8250bc9f
VK		 2255 free(buf);
2256 }
2257 }
2258}
2259
1267c0b9 2260static void inet_stats_print(struct sockstat *s, bool v6only)
5f27ac1d
PS		 2261{
2262 sock_state_print(s);
2263
1267c0b9
PS		 2264 inet_addr_print(&s->local, s->lport, s->iface, v6only);
2265 inet_addr_print(&s->remote, s->rport, 0, v6only);
5f27ac1d
PS		 2266
2267 proc_ctx_print(s);
2268}
2269
055840f2 2270static int proc_parse_inet_addr(char *loc, char *rem, int family, struct
acd1e437 2271 sockstat * s)
8250bc9f
VK		 2272{
2273 s->local.family = s->remote.family = family;
2274 if (family == AF_INET) {
acd1e437
SH		 2275 sscanf(loc, "%x:%x", s->local.data, (unsigned *)&s->lport);
2276 sscanf(rem, "%x:%x", s->remote.data, (unsigned *)&s->rport);
8250bc9f
VK		 2277 s->local.bytelen = s->remote.bytelen = 4;
2278 return 0;
2279 } else {
2280 sscanf(loc, "%08x%08x%08x%08x:%x",
2281 s->local.data,
2282 s->local.data + 1,
2283 s->local.data + 2,
2284 s->local.data + 3,
2285 &s->lport);
2286 sscanf(rem, "%08x%08x%08x%08x:%x",
2287 s->remote.data,
2288 s->remote.data + 1,
2289 s->remote.data + 2,
2290 s->remote.data + 3,
2291 &s->rport);
2292 s->local.bytelen = s->remote.bytelen = 16;
2293 return 0;
2294 }
2295 return -1;
2296}
2297
2298static int proc_inet_split_line(char *line, char **loc, char **rem, char **data)
aba5acdf 2299{
aba5acdf 2300 char *p;
ae665a52 2301
aba5acdf
SH		 2302 if ((p = strchr(line, ':')) == NULL)
2303 return -1;
ae665a52 2304
8250bc9f
VK		 2305 *loc = p+2;
2306 if ((p = strchr(*loc, ':')) == NULL)
aba5acdf 2307 return -1;
ae665a52 2308
8250bc9f
VK		 2309 p[5] = 0;
2310 *rem = p+6;
2311 if ((p = strchr(*rem, ':')) == NULL)
aba5acdf 2312 return -1;
8250bc9f 2313
aba5acdf 2314 p[5] = 0;
8250bc9f
VK		 2315 *data = p+6;
2316 return 0;
2317}
ae665a52 2318
8250bc9f
VK		 2319static char *sprint_bw(char *buf, double bw)
2320{
2321 if (bw > 1000000.)
acd1e437 2322 sprintf(buf, "%.1fM", bw / 1000000.);
8250bc9f 2323 else if (bw > 1000.)
acd1e437 2324 sprintf(buf, "%.1fK", bw / 1000.);
8250bc9f
VK		 2325 else
2326 sprintf(buf, "%g", bw);
aba5acdf 2327
8250bc9f
VK		 2328 return buf;
2329}
ae665a52 2330
f89d46ad
PS		 2331static void sctp_stats_print(struct sctp_info *s)
2332{
2333 if (s->sctpi_tag)
90351722 2334 out(" tag:%x", s->sctpi_tag);
f89d46ad 2335 if (s->sctpi_state)
90351722 2336 out(" state:%s", sctp_sstate_name[s->sctpi_state]);
f89d46ad 2337 if (s->sctpi_rwnd)
90351722 2338 out(" rwnd:%d", s->sctpi_rwnd);
f89d46ad 2339 if (s->sctpi_unackdata)
90351722 2340 out(" unackdata:%d", s->sctpi_unackdata);
f89d46ad 2341 if (s->sctpi_penddata)
90351722 2342 out(" penddata:%d", s->sctpi_penddata);
f89d46ad 2343 if (s->sctpi_instrms)
90351722 2344 out(" instrms:%d", s->sctpi_instrms);
f89d46ad 2345 if (s->sctpi_outstrms)
90351722 2346 out(" outstrms:%d", s->sctpi_outstrms);
f89d46ad 2347 if (s->sctpi_inqueue)
90351722 2348 out(" inqueue:%d", s->sctpi_inqueue);
f89d46ad 2349 if (s->sctpi_outqueue)
90351722 2350 out(" outqueue:%d", s->sctpi_outqueue);
f89d46ad 2351 if (s->sctpi_overall_error)
90351722 2352 out(" overerr:%d", s->sctpi_overall_error);
f89d46ad 2353 if (s->sctpi_max_burst)
90351722 2354 out(" maxburst:%d", s->sctpi_max_burst);
f89d46ad 2355 if (s->sctpi_maxseg)
90351722 2356 out(" maxseg:%d", s->sctpi_maxseg);
f89d46ad 2357 if (s->sctpi_peer_rwnd)
90351722 2358 out(" prwnd:%d", s->sctpi_peer_rwnd);
f89d46ad 2359 if (s->sctpi_peer_tag)
90351722 2360 out(" ptag:%x", s->sctpi_peer_tag);
f89d46ad 2361 if (s->sctpi_peer_capable)
90351722 2362 out(" pcapable:%d", s->sctpi_peer_capable);
f89d46ad 2363 if (s->sctpi_peer_sack)
90351722 2364 out(" psack:%d", s->sctpi_peer_sack);
f89d46ad 2365 if (s->sctpi_s_autoclose)
90351722 2366 out(" autoclose:%d", s->sctpi_s_autoclose);
f89d46ad 2367 if (s->sctpi_s_adaptation_ind)
90351722 2368 out(" adapind:%d", s->sctpi_s_adaptation_ind);
f89d46ad 2369 if (s->sctpi_s_pd_point)
90351722 2370 out(" pdpoint:%d", s->sctpi_s_pd_point);
f89d46ad 2371 if (s->sctpi_s_nodelay)
90351722 2372 out(" nodealy:%d", s->sctpi_s_nodelay);
f89d46ad 2373 if (s->sctpi_s_disable_fragments)
90351722 2374 out(" nofrag:%d", s->sctpi_s_disable_fragments);
f89d46ad 2375 if (s->sctpi_s_v4mapped)
90351722 2376 out(" v4mapped:%d", s->sctpi_s_v4mapped);
f89d46ad 2377 if (s->sctpi_s_frag_interleave)
90351722 2378 out(" fraginl:%d", s->sctpi_s_frag_interleave);
f89d46ad
PS		 2379}
2380
8250bc9f
VK		 2381static void tcp_stats_print(struct tcpstat *s)
2382{
2383 char b1[64];
2384
2385 if (s->has_ts_opt)
90351722 2386 out(" ts");
8250bc9f 2387 if (s->has_sack_opt)
90351722 2388 out(" sack");
8250bc9f 2389 if (s->has_ecn_opt)
90351722 2390 out(" ecn");
8250bc9f 2391 if (s->has_ecnseen_opt)
90351722 2392 out(" ecnseen");
8250bc9f 2393 if (s->has_fastopen_opt)
90351722 2394 out(" fastopen");
d2055ea5 2395 if (s->cong_alg[0])
90351722 2396 out(" %s", s->cong_alg);
8250bc9f 2397 if (s->has_wscale_opt)
90351722 2398 out(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale);
8250bc9f 2399 if (s->rto)
90351722 2400 out(" rto:%g", s->rto);
8250bc9f 2401 if (s->backoff)
90351722 2402 out(" backoff:%u", s->backoff);
8250bc9f 2403 if (s->rtt)
90351722 2404 out(" rtt:%g/%g", s->rtt, s->rttvar);
8250bc9f 2405 if (s->ato)
90351722 2406 out(" ato:%g", s->ato);
8250bc9f
VK		 2407
2408 if (s->qack)
90351722 2409 out(" qack:%d", s->qack);
8250bc9f 2410 if (s->qack & 1)
90351722 2411 out(" bidir");
8250bc9f
VK		 2412
2413 if (s->mss)
90351722 2414 out(" mss:%d", s->mss);
3d791a32
RM		 2415 if (s->pmtu)
2416 out(" pmtu:%u", s->pmtu);
38e6dbc4 2417 if (s->rcv_mss)
90351722 2418 out(" rcvmss:%d", s->rcv_mss);
38e6dbc4 2419 if (s->advmss)
90351722 2420 out(" advmss:%d", s->advmss);
3bf5445c 2421 if (s->cwnd)
90351722 2422 out(" cwnd:%u", s->cwnd);
8250bc9f 2423 if (s->ssthresh)
90351722 2424 out(" ssthresh:%d", s->ssthresh);
8250bc9f 2425
1a4dda71 2426 if (s->bytes_acked)
90351722 2427 out(" bytes_acked:%llu", s->bytes_acked);
1a4dda71 2428 if (s->bytes_received)
90351722 2429 out(" bytes_received:%llu", s->bytes_received);
ecb435ea 2430 if (s->segs_out)
90351722 2431 out(" segs_out:%u", s->segs_out);
ecb435ea 2432 if (s->segs_in)
90351722 2433 out(" segs_in:%u", s->segs_in);
414aeec9 2434 if (s->data_segs_out)
90351722 2435 out(" data_segs_out:%u", s->data_segs_out);
414aeec9 2436 if (s->data_segs_in)
90351722 2437 out(" data_segs_in:%u", s->data_segs_in);
1a4dda71 2438
8250bc9f
VK		 2439 if (s->dctcp && s->dctcp->enabled) {
2440 struct dctcpstat *dctcp = s->dctcp;
2441
90351722
SB		 2442 out(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
2443 dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn,
2444 dctcp->ab_tot);
8250bc9f 2445 } else if (s->dctcp) {
90351722 2446 out(" dctcp:fallback_mode");
8250bc9f
VK		 2447 }
2448
2f0f9aef
NC		 2449 if (s->bbr_info) {
2450 __u64 bw;
2451
2452 bw = s->bbr_info->bbr_bw_hi;
2453 bw <<= 32;
2454 bw |= s->bbr_info->bbr_bw_lo;
2455
90351722
SB		 2456 out(" bbr:(bw:%sbps,mrtt:%g",
2457 sprint_bw(b1, bw * 8.0),
2458 (double)s->bbr_info->bbr_min_rtt / 1000.0);
2f0f9aef 2459 if (s->bbr_info->bbr_pacing_gain)
90351722
SB		 2460 out(",pacing_gain:%g",
2461 (double)s->bbr_info->bbr_pacing_gain / 256.0);
2f0f9aef 2462 if (s->bbr_info->bbr_cwnd_gain)
90351722
SB		 2463 out(",cwnd_gain:%g",
2464 (double)s->bbr_info->bbr_cwnd_gain / 256.0);
2465 out(")");
2f0f9aef
NC		 2466 }
2467
8250bc9f 2468 if (s->send_bps)
90351722 2469 out(" send %sbps", sprint_bw(b1, s->send_bps));
8250bc9f 2470 if (s->lastsnd)
90351722 2471 out(" lastsnd:%u", s->lastsnd);
8250bc9f 2472 if (s->lastrcv)
90351722 2473 out(" lastrcv:%u", s->lastrcv);
8250bc9f 2474 if (s->lastack)
90351722 2475 out(" lastack:%u", s->lastack);
8250bc9f
VK		 2476
2477 if (s->pacing_rate) {
90351722 2478 out(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate));
8250bc9f 2479 if (s->pacing_rate_max)
90351722 2480 out("/%sbps", sprint_bw(b1, s->pacing_rate_max));
8250bc9f
VK		 2481 }
2482
2f579872 2483 if (s->delivery_rate)
90351722 2484 out(" delivery_rate %sbps", sprint_bw(b1, s->delivery_rate));
2f579872 2485 if (s->app_limited)
90351722 2486 out(" app_limited");
2f579872 2487
b6c7fc61 2488 if (s->busy_time) {
90351722 2489 out(" busy:%llums", s->busy_time / 1000);
b6c7fc61 2490 if (s->rwnd_limited)
90351722
SB		 2491 out(" rwnd_limited:%llums(%.1f%%)",
2492 s->rwnd_limited / 1000,
2493 100.0 * s->rwnd_limited / s->busy_time);
b6c7fc61 2494 if (s->sndbuf_limited)
90351722
SB		 2495 out(" sndbuf_limited:%llums(%.1f%%)",
2496 s->sndbuf_limited / 1000,
2497 100.0 * s->sndbuf_limited / s->busy_time);
b6c7fc61
YC		 2498 }
2499
8250bc9f 2500 if (s->unacked)
90351722 2501 out(" unacked:%u", s->unacked);
8250bc9f 2502 if (s->retrans || s->retrans_total)
90351722 2503 out(" retrans:%u/%u", s->retrans, s->retrans_total);
8250bc9f 2504 if (s->lost)
90351722 2505 out(" lost:%u", s->lost);
055840f2 2506 if (s->sacked && s->ss.state != SS_LISTEN)
90351722 2507 out(" sacked:%u", s->sacked);
8250bc9f 2508 if (s->fackets)
90351722 2509 out(" fackets:%u", s->fackets);
8250bc9f 2510 if (s->reordering != 3)
90351722 2511 out(" reordering:%d", s->reordering);
8250bc9f 2512 if (s->rcv_rtt)
90351722 2513 out(" rcv_rtt:%g", s->rcv_rtt);
8250bc9f 2514 if (s->rcv_space)
90351722 2515 out(" rcv_space:%d", s->rcv_space);
00ac78d3 2516 if (s->rcv_ssthresh)
90351722 2517 out(" rcv_ssthresh:%u", s->rcv_ssthresh);
9e99e495 2518 if (s->not_sent)
90351722 2519 out(" notsent:%u", s->not_sent);
9e99e495 2520 if (s->min_rtt)
90351722 2521 out(" minrtt:%g", s->min_rtt);
8250bc9f
VK		 2522}
2523
055840f2
VK		 2524static void tcp_timer_print(struct tcpstat *s)
2525{
86dfa1be
PS		 2526 static const char * const tmr_name[] = {
2527 "off",
2528 "on",
2529 "keepalive",
2530 "timewait",
2531 "persist",
2532 "unknown"
2533 };
2534
055840f2
VK		 2535 if (s->timer) {
2536 if (s->timer > 4)
2537 s->timer = 5;
90351722
SB		 2538 out(" timer:(%s,%s,%d)",
2539 tmr_name[s->timer],
2540 print_ms_timer(s->timeout),
2541 s->retrans);
055840f2
VK		 2542 }
2543}
2544
f89d46ad
PS		 2545static void sctp_timer_print(struct tcpstat *s)
2546{
2547 if (s->timer)
90351722
SB		 2548 out(" timer:(T3_RTX,%s,%d)",
2549 print_ms_timer(s->timeout), s->retrans);
f89d46ad
PS		 2550}
2551
8250bc9f
VK		 2552static int tcp_show_line(char *line, const struct filter *f, int family)
2553{
2554 int rto = 0, ato = 0;
2555 struct tcpstat s = {};
2556 char *loc, *rem, *data;
2557 char opt[256];
2558 int n;
2559 int hz = get_user_hz();
2560
2561 if (proc_inet_split_line(line, &loc, &rem, &data))
2562 return -1;
2563
2564 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2565
8250bc9f
VK		 2566 if (!(f->states & (1 << state)))
2567 return 0;
2568
055840f2 2569 proc_parse_inet_addr(loc, rem, family, &s.ss);
ae665a52 2570
055840f2 2571 if (f->f && run_ssfilter(f->f, &s.ss) == 0)
aba5acdf 2572 return 0;
ae665a52 2573
aba5acdf 2574 opt[0] = 0;
d1f338b3 2575 n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
055840f2
VK		 2576 &s.ss.state, &s.ss.wq, &s.ss.rq,
2577 &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes,
2578 &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd,
2579 &s.ssthresh, opt);
ae665a52 2580
aba5acdf
SH		 2581 if (n < 17)
2582 opt[0] = 0;
ae665a52 2583
aba5acdf 2584 if (n < 12) {
8250bc9f 2585 rto = 0;
aba5acdf
SH		 2586 s.cwnd = 2;
2587 s.ssthresh = -1;
8250bc9f 2588 ato = s.qack = 0;
aba5acdf 2589 }
ae665a52 2590
8250bc9f
VK		 2591 s.retrans = s.timer != 1 ? s.probes : s.retrans;
2592 s.timeout = (s.timeout * 1000 + hz - 1) / hz;
2593 s.ato = (double)ato / hz;
2594 s.qack /= 2;
2595 s.rto = (double)rto;
2596 s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh;
2597 s.rto = s.rto != 3 * hz ? s.rto / hz : 0;
be7e4d20 2598 s.ss.type = IPPROTO_TCP;
ae665a52 2599
1267c0b9 2600 inet_stats_print(&s.ss, false);
055840f2
VK		 2601
2602 if (show_options)
2603 tcp_timer_print(&s);
116ac927 2604
aba5acdf 2605 if (show_details) {
f1b39e1b 2606 sock_details_print(&s.ss);
aba5acdf 2607 if (opt[0])
90351722 2608 out(" opt:\"%s\"", opt);
aba5acdf 2609 }
aba5acdf 2610
8250bc9f
VK		 2611 if (show_tcpinfo)
2612 tcp_stats_print(&s);
2613
aba5acdf
SH		 2614 return 0;
2615}
2616
ab01dbbb
SH		 2617static int generic_record_read(FILE *fp,
2618 int (*worker)(char*, const struct filter *, int),
2619 const struct filter *f, int fam)
aba5acdf 2620{
ab01dbbb 2621 char line[256];
aba5acdf 2622
ab01dbbb
SH		 2623 /* skip header */
2624 if (fgets(line, sizeof(line), fp) == NULL)
aba5acdf 2625 goto outerr;
ab01dbbb
SH		 2626
2627 while (fgets(line, sizeof(line), fp) != NULL) {
2628 int n = strlen(line);
acd1e437 2629
ab01dbbb
SH		 2630 if (n == 0 || line[n-1] != '\n') {
2631 errno = -EINVAL;
2632 return -1;
aba5acdf 2633 }
ab01dbbb 2634 line[n-1] = 0;
aba5acdf 2635
ab01dbbb
SH		 2636 if (worker(line, f, fam) < 0)
2637 return 0;
2638 }
aba5acdf 2639outerr:
ab01dbbb
SH		 2640
2641 return ferror(fp) ? -1 : 0;
aba5acdf 2642}
ae665a52 2643
51ff9f24
HFS		 2644static void print_skmeminfo(struct rtattr *tb[], int attrtype)
2645{
2646 const __u32 *skmeminfo;
db08bdb8
VK		 2647
2648 if (!tb[attrtype]) {
2649 if (attrtype == INET_DIAG_SKMEMINFO) {
2650 if (!tb[INET_DIAG_MEMINFO])
2651 return;
2652
2653 const struct inet_diag_meminfo *minfo =
2654 RTA_DATA(tb[INET_DIAG_MEMINFO]);
2655
90351722
SB		 2656 out(" mem:(r%u,w%u,f%u,t%u)",
2657 minfo->idiag_rmem,
2658 minfo->idiag_wmem,
2659 minfo->idiag_fmem,
2660 minfo->idiag_tmem);
db08bdb8 2661 }
51ff9f24 2662 return;
db08bdb8
VK		 2663 }
2664
51ff9f24
HFS		 2665 skmeminfo = RTA_DATA(tb[attrtype]);
2666
90351722
SB		 2667 out(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2668 skmeminfo[SK_MEMINFO_RMEM_ALLOC],
2669 skmeminfo[SK_MEMINFO_RCVBUF],
2670 skmeminfo[SK_MEMINFO_WMEM_ALLOC],
2671 skmeminfo[SK_MEMINFO_SNDBUF],
2672 skmeminfo[SK_MEMINFO_FWD_ALLOC],
2673 skmeminfo[SK_MEMINFO_WMEM_QUEUED],
2674 skmeminfo[SK_MEMINFO_OPTMEM]);
51ff9f24
HFS		 2675
2676 if (RTA_PAYLOAD(tb[attrtype]) >=
2677 (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32))
90351722 2678 out(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]);
51ff9f24 2679
6df9c7a0
ED		 2680 if (RTA_PAYLOAD(tb[attrtype]) >=
2681 (SK_MEMINFO_DROPS + 1) * sizeof(__u32))
90351722 2682 out(",d%u", skmeminfo[SK_MEMINFO_DROPS]);
6df9c7a0 2683
90351722 2684 out(")");
51ff9f24
HFS		 2685}
2686
da9cc6ab
ID		 2687static void print_md5sig(struct tcp_diag_md5sig *sig)
2688{
90351722
SB		 2689 out("%s/%d=",
2690 format_host(sig->tcpm_family,
2691 sig->tcpm_family == AF_INET6 ? 16 : 4,
2692 &sig->tcpm_addr),
2693 sig->tcpm_prefixlen);
da9cc6ab
ID		 2694 print_escape_buf(sig->tcpm_key, sig->tcpm_keylen, " ,");
2695}
2696
8250bc9f
VK		 2697#define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2698
5b816047
PE		 2699static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2700 struct rtattr *tb[])
7d105b56 2701{
b4b0b7d5 2702 double rtt = 0;
8250bc9f 2703 struct tcpstat s = {};
7d105b56 2704
055840f2
VK		 2705 s.ss.state = r->idiag_state;
2706
db08bdb8 2707 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
7d105b56 2708
351efcde 2709 if (tb[INET_DIAG_INFO]) {
05e18118 2710 struct tcp_info *info;
351efcde 2711 int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
05e18118
SH		 2712
2713 /* workaround for older kernels with less fields */
2714 if (len < sizeof(*info)) {
2715 info = alloca(sizeof(*info));
351efcde 2716 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
656e8fdd 2717 memset((char *)info + len, 0, sizeof(*info) - len);
05e18118 2718 } else
351efcde 2719 info = RTA_DATA(tb[INET_DIAG_INFO]);
05e18118 2720
b4b0b7d5 2721 if (show_options) {
8250bc9f
VK		 2722 s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS);
2723 s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK);
2724 s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN);
2725 s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN);
2726 s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA);
b4b0b7d5 2727 }
52d5ac3f 2728
d2055ea5
ED		 2729 if (tb[INET_DIAG_CONG])
2730 strncpy(s.cong_alg,
2731 rta_getattr_str(tb[INET_DIAG_CONG]),
2732 sizeof(s.cong_alg) - 1);
8250bc9f
VK		 2733
2734 if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) {
2735 s.has_wscale_opt = true;
2736 s.snd_wscale = info->tcpi_snd_wscale;
2737 s.rcv_wscale = info->tcpi_rcv_wscale;
2738 }
ea8fc104 2739
7d105b56 2740 if (info->tcpi_rto && info->tcpi_rto != 3000000)
8250bc9f
VK		 2741 s.rto = (double)info->tcpi_rto / 1000;
2742
2743 s.backoff = info->tcpi_backoff;
2744 s.rtt = (double)info->tcpi_rtt / 1000;
2745 s.rttvar = (double)info->tcpi_rttvar / 1000;
11ba90fc 2746 s.ato = (double)info->tcpi_ato / 1000;
8250bc9f 2747 s.mss = info->tcpi_snd_mss;
38e6dbc4
ED		 2748 s.rcv_mss = info->tcpi_rcv_mss;
2749 s.advmss = info->tcpi_advmss;
8250bc9f
VK		 2750 s.rcv_space = info->tcpi_rcv_space;
2751 s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000;
2752 s.lastsnd = info->tcpi_last_data_sent;
2753 s.lastrcv = info->tcpi_last_data_recv;
2754 s.lastack = info->tcpi_last_ack_recv;
2755 s.unacked = info->tcpi_unacked;
2756 s.retrans = info->tcpi_retrans;
2757 s.retrans_total = info->tcpi_total_retrans;
2758 s.lost = info->tcpi_lost;
2759 s.sacked = info->tcpi_sacked;
c4be5feb 2760 s.fackets = info->tcpi_fackets;
8250bc9f 2761 s.reordering = info->tcpi_reordering;
00ac78d3 2762 s.rcv_ssthresh = info->tcpi_rcv_ssthresh;
8250bc9f 2763 s.cwnd = info->tcpi_snd_cwnd;
3d791a32 2764 s.pmtu = info->tcpi_pmtu;
8250bc9f 2765
7d105b56 2766 if (info->tcpi_snd_ssthresh < 0xFFFF)
8250bc9f 2767 s.ssthresh = info->tcpi_snd_ssthresh;
52d5ac3f 2768
b4b0b7d5 2769 rtt = (double) info->tcpi_rtt;
351efcde 2770 if (tb[INET_DIAG_VEGASINFO]) {
05e18118 2771 const struct tcpvegas_info *vinfo
351efcde 2772 = RTA_DATA(tb[INET_DIAG_VEGASINFO]);
7d105b56 2773
ae665a52 2774 if (vinfo->tcpv_enabled &&
8250bc9f 2775 vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff)
ea8fc104 2776 rtt = vinfo->tcpv_rtt;
b4b0b7d5
SH		 2777 }
2778
907e1aca 2779 if (tb[INET_DIAG_DCTCPINFO]) {
8250bc9f
VK		 2780 struct dctcpstat *dctcp = malloc(sizeof(struct
2781 dctcpstat));
2782
907e1aca
DB		 2783 const struct tcp_dctcp_info *dinfo
2784 = RTA_DATA(tb[INET_DIAG_DCTCPINFO]);
2785
8250bc9f
VK		 2786 dctcp->enabled = !!dinfo->dctcp_enabled;
2787 dctcp->ce_state = dinfo->dctcp_ce_state;
2788 dctcp->alpha = dinfo->dctcp_alpha;
2789 dctcp->ab_ecn = dinfo->dctcp_ab_ecn;
2790 dctcp->ab_tot = dinfo->dctcp_ab_tot;
2791 s.dctcp = dctcp;
907e1aca
DB		 2792 }
2793
2f0f9aef
NC		 2794 if (tb[INET_DIAG_BBRINFO]) {
2795 const void *bbr_info = RTA_DATA(tb[INET_DIAG_BBRINFO]);
2796 int len = min(RTA_PAYLOAD(tb[INET_DIAG_BBRINFO]),
2797 sizeof(*s.bbr_info));
2798
2799 s.bbr_info = calloc(1, sizeof(*s.bbr_info));
2800 if (s.bbr_info && bbr_info)
2801 memcpy(s.bbr_info, bbr_info, len);
2802 }
2803
b4b0b7d5 2804 if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
8250bc9f
VK		 2805 s.send_bps = (double) info->tcpi_snd_cwnd *
2806 (double)info->tcpi_snd_mss * 8000000. / rtt;
7d105b56 2807 }
b4b0b7d5 2808
eb6028b2 2809 if (info->tcpi_pacing_rate &&
8250bc9f
VK		 2810 info->tcpi_pacing_rate != ~0ULL) {
2811 s.pacing_rate = info->tcpi_pacing_rate * 8.;
eb6028b2
ED		 2812
2813 if (info->tcpi_max_pacing_rate &&
8250bc9f
VK		 2814 info->tcpi_max_pacing_rate != ~0ULL)
2815 s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.;
eb6028b2 2816 }
1a4dda71
ED		 2817 s.bytes_acked = info->tcpi_bytes_acked;
2818 s.bytes_received = info->tcpi_bytes_received;
ecb435ea
CG		 2819 s.segs_out = info->tcpi_segs_out;
2820 s.segs_in = info->tcpi_segs_in;
414aeec9
MKL		 2821 s.data_segs_out = info->tcpi_data_segs_out;
2822 s.data_segs_in = info->tcpi_data_segs_in;
9e99e495 2823 s.not_sent = info->tcpi_notsent_bytes;
d9ba887e
ED		 2824 if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U)
2825 s.min_rtt = (double) info->tcpi_min_rtt / 1000;
2f579872
NC		 2826 s.delivery_rate = info->tcpi_delivery_rate * 8.;
2827 s.app_limited = info->tcpi_delivery_rate_app_limited;
b6c7fc61
YC		 2828 s.busy_time = info->tcpi_busy_time;
2829 s.rwnd_limited = info->tcpi_rwnd_limited;
2830 s.sndbuf_limited = info->tcpi_sndbuf_limited;
8250bc9f 2831 tcp_stats_print(&s);
92de1c2c 2832 free(s.dctcp);
2f0f9aef 2833 free(s.bbr_info);
77a8ca81 2834 }
da9cc6ab
ID		 2835 if (tb[INET_DIAG_MD5SIG]) {
2836 struct tcp_diag_md5sig *sig = RTA_DATA(tb[INET_DIAG_MD5SIG]);
2837 int len = RTA_PAYLOAD(tb[INET_DIAG_MD5SIG]);
2838
90351722 2839 out(" md5keys:");
da9cc6ab
ID		 2840 print_md5sig(sig++);
2841 for (len -= sizeof(*sig); len > 0; len -= sizeof(*sig)) {
90351722 2842 out(",");
da9cc6ab
ID		 2843 print_md5sig(sig++);
2844 }
2845 }
77a8ca81
PE		 2846}
2847
f89d46ad
PS		 2848static const char *format_host_sa(struct sockaddr_storage *sa)
2849{
2850 union {
2851 struct sockaddr_in sin;
2852 struct sockaddr_in6 sin6;
2853 } *saddr = (void *)sa;
2854
2855 switch (sa->ss_family) {
2856 case AF_INET:
2857 return format_host(AF_INET, 4, &saddr->sin.sin_addr);
2858 case AF_INET6:
2859 return format_host(AF_INET6, 16, &saddr->sin6.sin6_addr);
2860 default:
2861 return "";
2862 }
2863}
2864
2865static void sctp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2866 struct rtattr *tb[])
2867{
2868 struct sockaddr_storage *sa;
2869 int len;
2870
2871 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
2872
2873 if (tb[INET_DIAG_LOCALS]) {
2874 len = RTA_PAYLOAD(tb[INET_DIAG_LOCALS]);
2875 sa = RTA_DATA(tb[INET_DIAG_LOCALS]);
2876
90351722 2877 out("locals:%s", format_host_sa(sa));
f89d46ad 2878 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
90351722 2879 out(",%s", format_host_sa(sa));
f89d46ad
PS		 2880
2881 }
2882 if (tb[INET_DIAG_PEERS]) {
2883 len = RTA_PAYLOAD(tb[INET_DIAG_PEERS]);
2884 sa = RTA_DATA(tb[INET_DIAG_PEERS]);
2885
90351722 2886 out(" peers:%s", format_host_sa(sa));
f89d46ad 2887 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
90351722 2888 out(",%s", format_host_sa(sa));
f89d46ad
PS		 2889 }
2890 if (tb[INET_DIAG_INFO]) {
2891 struct sctp_info *info;
2892 len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
2893
2894 /* workaround for older kernels with less fields */
2895 if (len < sizeof(*info)) {
2896 info = alloca(sizeof(*info));
2897 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
2898 memset((char *)info + len, 0, sizeof(*info) - len);
2899 } else
2900 info = RTA_DATA(tb[INET_DIAG_INFO]);
2901
2902 sctp_stats_print(info);
2903 }
2904}
2905
82d73ea0 2906static void parse_diag_msg(struct nlmsghdr *nlh, struct sockstat *s)
aba5acdf 2907{
acd1e437 2908 struct rtattr *tb[INET_DIAG_MAX+1];
351efcde 2909 struct inet_diag_msg *r = NLMSG_DATA(nlh);
aba5acdf 2910
acd1e437 2911 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
5b816047
PE		 2912 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
2913
82d73ea0
DA		 2914 s->state = r->idiag_state;
2915 s->local.family = s->remote.family = r->idiag_family;
2916 s->lport = ntohs(r->id.idiag_sport);
2917 s->rport = ntohs(r->id.idiag_dport);
2918 s->wq = r->idiag_wqueue;
2919 s->rq = r->idiag_rqueue;
2920 s->ino = r->idiag_inode;
2921 s->uid = r->idiag_uid;
2922 s->iface = r->id.idiag_if;
2923 s->sk = cookie_sk_get(&r->id.idiag_cookie[0]);
2924
ec75249b
LC		 2925 s->mark = 0;
2926 if (tb[INET_DIAG_MARK])
9f1370c0 2927 s->mark = rta_getattr_u32(tb[INET_DIAG_MARK]);
41fe6c34 2928 if (tb[INET_DIAG_PROTOCOL])
9f1370c0 2929 s->raw_prot = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]);
41fe6c34
CG		 2930 else
2931 s->raw_prot = 0;
ec75249b 2932
82d73ea0
DA		 2933 if (s->local.family == AF_INET)
2934 s->local.bytelen = s->remote.bytelen = 4;
2935 else
2936 s->local.bytelen = s->remote.bytelen = 16;
8250bc9f 2937
82d73ea0
DA		 2938 memcpy(s->local.data, r->id.idiag_src, s->local.bytelen);
2939 memcpy(s->remote.data, r->id.idiag_dst, s->local.bytelen);
2940}
aba5acdf 2941
82d73ea0 2942static int inet_show_sock(struct nlmsghdr *nlh,
be7e4d20 2943 struct sockstat *s)
82d73ea0
DA		 2944{
2945 struct rtattr *tb[INET_DIAG_MAX+1];
2946 struct inet_diag_msg *r = NLMSG_DATA(nlh);
1267c0b9 2947 unsigned char v6only = 0;
82d73ea0
DA		 2948
2949 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
2950 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
aba5acdf 2951
6885e3bf 2952 if (tb[INET_DIAG_PROTOCOL])
9f1370c0 2953 s->type = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]);
6885e3bf 2954
1267c0b9
PS		 2955 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY])
2956 v6only = rta_getattr_u8(tb[INET_DIAG_SKV6ONLY]);
2957
2958 inet_stats_print(s, v6only);
116ac927 2959
055840f2
VK		 2960 if (show_options) {
2961 struct tcpstat t = {};
2962
2963 t.timer = r->idiag_timer;
2964 t.timeout = r->idiag_expires;
2965 t.retrans = r->idiag_retrans;
be7e4d20 2966 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2967 sctp_timer_print(&t);
2968 else
2969 tcp_timer_print(&t);
055840f2
VK		 2970 }
2971
aba5acdf 2972 if (show_details) {
82d73ea0 2973 sock_details_print(s);
1267c0b9 2974 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY])
90351722 2975 out(" v6only:%u", v6only);
1267c0b9 2976
5b816047
PE		 2977 if (tb[INET_DIAG_SHUTDOWN]) {
2978 unsigned char mask;
acd1e437 2979
9f1370c0 2980 mask = rta_getattr_u8(tb[INET_DIAG_SHUTDOWN]);
90351722
SB		 2981 out(" %c-%c",
2982 mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
5b816047 2983 }
aba5acdf 2984 }
8250bc9f 2985
be7e4d20 2986 if (show_mem || (show_tcpinfo && s->type != IPPROTO_UDP)) {
90351722 2987 out("\n\t");
be7e4d20 2988 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 2989 sctp_show_info(nlh, r, tb);
2990 else
2991 tcp_show_info(nlh, r, tb);
aba5acdf 2992 }
f89d46ad 2993 sctp_ino = s->ino;
7d105b56 2994
aba5acdf 2995 return 0;
aba5acdf
SH		 2996}
2997
746a695f 2998static int tcpdiag_send(int fd, int protocol, struct filter *f)
aba5acdf 2999{
d17b136f 3000 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
aba5acdf
SH		 3001 struct {
3002 struct nlmsghdr nlh;
351efcde 3003 struct inet_diag_req r;
d17b136f
PS		 3004 } req = {
3005 .nlh.nlmsg_len = sizeof(req),
3006 .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
3007 .nlh.nlmsg_seq = MAGIC_SEQ,
3008 .r.idiag_family = AF_INET,
3009 .r.idiag_states = f->states,
3010 };
aba5acdf
SH		 3011 char *bc = NULL;
3012 int bclen;
3013 struct msghdr msg;
3014 struct rtattr rta;
aba5acdf 3015 struct iovec iov[3];
376fb868 3016 int iovlen = 1;
aba5acdf 3017
346f8ca8
PE		 3018 if (protocol == IPPROTO_UDP)
3019 return -1;
3020
3fe5b534
PE		 3021 if (protocol == IPPROTO_TCP)
3022 req.nlh.nlmsg_type = TCPDIAG_GETSOCK;
3023 else
3024 req.nlh.nlmsg_type = DCCPDIAG_GETSOCK;
910b0397 3025 if (show_mem) {
ae665a52 3026 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
910b0397
SW		 3027 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
3028 }
b4b0b7d5 3029
7d105b56 3030 if (show_tcpinfo) {
351efcde
SH		 3031 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
3032 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
3033 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
7d105b56 3034 }
aba5acdf 3035
ae665a52
SH		 3036 iov[0] = (struct iovec){
3037 .iov_base = &req,
3038 .iov_len = sizeof(req)
ea8fc104 3039 };
aba5acdf
SH		 3040 if (f->f) {
3041 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 3042 if (bclen) {
3043 rta.rta_type = INET_DIAG_REQ_BYTECODE;
3044 rta.rta_len = RTA_LENGTH(bclen);
3045 iov[1] = (struct iovec){ &rta, sizeof(rta) };
3046 iov[2] = (struct iovec){ bc, bclen };
3047 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
3048 iovlen = 3;
3049 }
aba5acdf
SH		 3050 }
3051
3052 msg = (struct msghdr) {
acd1e437 3053 .msg_name = (void *)&nladdr,
ea8fc104 3054 .msg_namelen = sizeof(nladdr),
ae665a52 3055 .msg_iov = iov,
376fb868 3056 .msg_iovlen = iovlen,
aba5acdf
SH		 3057 };
3058
930a75f9
ED		 3059 if (sendmsg(fd, &msg, 0) < 0) {
3060 close(fd);
aba5acdf 3061 return -1;
930a75f9 3062 }
aba5acdf 3063
746a695f
PE		 3064 return 0;
3065}
3066
886d19d6
PE		 3067static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
3068{
d17b136f 3069 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
5fb421d4 3070 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
886d19d6
PE		 3071 char *bc = NULL;
3072 int bclen;
3073 struct msghdr msg;
3074 struct rtattr rta;
3075 struct iovec iov[3];
376fb868 3076 int iovlen = 1;
886d19d6
PE		 3077
3078 if (family == PF_UNSPEC)
3079 return tcpdiag_send(fd, protocol, f);
3080
886d19d6
PE		 3081 memset(&req.r, 0, sizeof(req.r));
3082 req.r.sdiag_family = family;
3083 req.r.sdiag_protocol = protocol;
3084 req.r.idiag_states = f->states;
3085 if (show_mem) {
3086 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
3087 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
3088 }
3089
3090 if (show_tcpinfo) {
3091 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
3092 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
3093 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
3094 }
3095
3096 iov[0] = (struct iovec){
3097 .iov_base = &req,
3098 .iov_len = sizeof(req)
3099 };
3100 if (f->f) {
3101 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 3102 if (bclen) {
3103 rta.rta_type = INET_DIAG_REQ_BYTECODE;
3104 rta.rta_len = RTA_LENGTH(bclen);
3105 iov[1] = (struct iovec){ &rta, sizeof(rta) };
3106 iov[2] = (struct iovec){ bc, bclen };
3107 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
3108 iovlen = 3;
3109 }
886d19d6
PE		 3110 }
3111
3112 msg = (struct msghdr) {
acd1e437 3113 .msg_name = (void *)&nladdr,
886d19d6
PE		 3114 .msg_namelen = sizeof(nladdr),
3115 .msg_iov = iov,
376fb868 3116 .msg_iovlen = iovlen,
886d19d6
PE		 3117 };
3118
3119 if (sendmsg(fd, &msg, 0) < 0) {
3120 close(fd);
3121 return -1;
3122 }
3123
3124 return 0;
3125}
3126
486ccd99
VK		 3127struct inet_diag_arg {
3128 struct filter *f;
3129 int protocol;
fb2594c1 3130 struct rtnl_handle *rth;
486ccd99 3131};
aba5acdf 3132
41fe6c34 3133static int kill_inet_sock(struct nlmsghdr *h, void *arg, struct sockstat *s)
fb2594c1
LC		 3134{
3135 struct inet_diag_msg *d = NLMSG_DATA(h);
3136 struct inet_diag_arg *diag_arg = arg;
3137 struct rtnl_handle *rth = diag_arg->rth;
acd1e437 3138
fb2594c1
LC		 3139 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
3140
3141 req.nlh.nlmsg_type = SOCK_DESTROY;
3142 req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
3143 req.nlh.nlmsg_seq = ++rth->seq;
3144 req.r.sdiag_family = d->idiag_family;
3145 req.r.sdiag_protocol = diag_arg->protocol;
3146 req.r.id = d->id;
3147
41fe6c34
CG		 3148 if (diag_arg->protocol == IPPROTO_RAW) {
3149 struct inet_diag_req_raw *raw = (void *)&req.r;
3150
3151 BUILD_BUG_ON(sizeof(req.r) != sizeof(*raw));
3152 raw->sdiag_raw_protocol = s->raw_prot;
3153 }
3154
86bf43c7 3155 return rtnl_talk(rth, &req.nlh, NULL);
fb2594c1
LC		 3156}
3157
486ccd99
VK		 3158static int show_one_inet_sock(const struct sockaddr_nl *addr,
3159 struct nlmsghdr *h, void *arg)
3160{
3161 int err;
3162 struct inet_diag_arg *diag_arg = arg;
3163 struct inet_diag_msg *r = NLMSG_DATA(h);
82d73ea0 3164 struct sockstat s = {};
aba5acdf 3165
b338a3e7 3166 if (!(diag_arg->f->families & FAMILY_MASK(r->idiag_family)))
486ccd99 3167 return 0;
82d73ea0
DA		 3168
3169 parse_diag_msg(h, &s);
be7e4d20 3170 s.type = diag_arg->protocol;
82d73ea0
DA		 3171
3172 if (diag_arg->f->f && run_ssfilter(diag_arg->f->f, &s) == 0)
3173 return 0;
3174
41fe6c34 3175 if (diag_arg->f->kill && kill_inet_sock(h, arg, &s) != 0) {
fb2594c1
LC		 3176 if (errno == EOPNOTSUPP || errno == ENOENT) {
3177 /* Socket can't be closed, or is already closed. */
3178 return 0;
3179 } else {
3180 perror("SOCK_DESTROY answers");
3181 return -1;
3182 }
3183 }
82d73ea0 3184
be7e4d20 3185 err = inet_show_sock(h, &s);
82d73ea0 3186 if (err < 0)
486ccd99 3187 return err;
aba5acdf 3188
486ccd99
VK		 3189 return 0;
3190}
886d19d6 3191
486ccd99
VK		 3192static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol)
3193{
3194 int err = 0;
fb2594c1 3195 struct rtnl_handle rth, rth2;
486ccd99
VK		 3196 int family = PF_INET;
3197 struct inet_diag_arg arg = { .f = f, .protocol = protocol };
886d19d6 3198
486ccd99
VK		 3199 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
3200 return -1;
fb2594c1
LC		 3201
3202 if (f->kill) {
3203 if (rtnl_open_byproto(&rth2, 0, NETLINK_SOCK_DIAG)) {
3204 rtnl_close(&rth);
3205 return -1;
3206 }
3207 arg.rth = &rth2;
3208 }
3209
486ccd99
VK		 3210 rth.dump = MAGIC_SEQ;
3211 rth.dump_fp = dump_fp;
518af1e0
ED		 3212 if (preferred_family == PF_INET6)
3213 family = PF_INET6;
886d19d6 3214
486ccd99
VK		 3215again:
3216 if ((err = sockdiag_send(family, rth.fd, protocol, f)))
3217 goto Exit;
aba5acdf 3218
486ccd99
VK		 3219 if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) {
3220 if (family != PF_UNSPEC) {
3221 family = PF_UNSPEC;
3222 goto again;
aba5acdf 3223 }
486ccd99 3224 goto Exit;
aba5acdf 3225 }
518af1e0 3226 if (family == PF_INET && preferred_family != PF_INET) {
886d19d6
PE		 3227 family = PF_INET6;
3228 goto again;
3229 }
3230
486ccd99
VK		 3231Exit:
3232 rtnl_close(&rth);
fb2594c1
LC		 3233 if (arg.rth)
3234 rtnl_close(arg.rth);
486ccd99 3235 return err;
aba5acdf
SH		 3236}
3237
ab01dbbb 3238static int tcp_show_netlink_file(struct filter *f)
aba5acdf
SH		 3239{
3240 FILE *fp;
e557212e 3241 char buf[16384];
4b45ae22 3242 int err = -1;
aba5acdf
SH		 3243
3244 if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) {
3245 perror("fopen($TCPDIAG_FILE)");
4b45ae22 3246 return err;
aba5acdf
SH		 3247 }
3248
3249 while (1) {
4b45ae22 3250 int status, err2;
acd1e437 3251 struct nlmsghdr *h = (struct nlmsghdr *)buf;
82d73ea0 3252 struct sockstat s = {};
aba5acdf
SH		 3253
3254 status = fread(buf, 1, sizeof(*h), fp);
3255 if (status < 0) {
3256 perror("Reading header from $TCPDIAG_FILE");
4b45ae22 3257 break;
aba5acdf
SH		 3258 }
3259 if (status != sizeof(*h)) {
3260 perror("Unexpected EOF reading $TCPDIAG_FILE");
4b45ae22 3261 break;
aba5acdf
SH		 3262 }
3263
3264 status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp);
3265
3266 if (status < 0) {
3267 perror("Reading $TCPDIAG_FILE");
4b45ae22 3268 break;
aba5acdf
SH		 3269 }
3270 if (status + sizeof(*h) < h->nlmsg_len) {
3271 perror("Unexpected EOF reading $TCPDIAG_FILE");
4b45ae22 3272 break;
aba5acdf
SH		 3273 }
3274
3275 /* The only legal exit point */
4b45ae22
PS		 3276 if (h->nlmsg_type == NLMSG_DONE) {
3277 err = 0;
3278 break;
3279 }
aba5acdf
SH		 3280
3281 if (h->nlmsg_type == NLMSG_ERROR) {
acd1e437
SH		 3282 struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h);
3283
aba5acdf
SH		 3284 if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
3285 fprintf(stderr, "ERROR truncated\n");
3286 } else {
3287 errno = -err->error;
3288 perror("TCPDIAG answered");
3289 }
4b45ae22 3290 break;
aba5acdf
SH		 3291 }
3292
82d73ea0 3293 parse_diag_msg(h, &s);
be7e4d20 3294 s.type = IPPROTO_TCP;
82d73ea0
DA		 3295
3296 if (f && f->f && run_ssfilter(f->f, &s) == 0)
3297 continue;
3298
4b45ae22
PS		 3299 err2 = inet_show_sock(h, &s);
3300 if (err2 < 0) {
3301 err = err2;
3302 break;
3303 }
aba5acdf 3304 }
4b45ae22
PS		 3305
3306 fclose(fp);
3307 return err;
aba5acdf
SH		 3308}
3309
6c6bbc30 3310static int tcp_show(struct filter *f)
aba5acdf 3311{
ab01dbbb 3312 FILE *fp = NULL;
aba5acdf 3313 char *buf = NULL;
10f68773 3314 int bufsize = 1024*1024;
aba5acdf 3315
1527a17e
VK		 3316 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
3317 return 0;
3318
aba5acdf
SH		 3319 dg_proto = TCP_PROTO;
3320
3321 if (getenv("TCPDIAG_FILE"))
3322 return tcp_show_netlink_file(f);
3323
3324 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
6c6bbc30 3325 && inet_show_netlink(f, NULL, IPPROTO_TCP) == 0)
aba5acdf
SH		 3326 return 0;
3327
3328 /* Sigh... We have to parse /proc/net/tcp... */
aba5acdf
SH		 3329 while (bufsize >= 64*1024) {
3330 if ((buf = malloc(bufsize)) != NULL)
3331 break;
3332 bufsize /= 2;
3333 }
3334 if (buf == NULL) {
3335 errno = ENOMEM;
3336 return -1;
3337 }
3338
b338a3e7 3339 if (f->families & FAMILY_MASK(AF_INET)) {
69cae645 3340 if ((fp = net_tcp_open()) == NULL)
aba5acdf 3341 goto outerr;
ab01dbbb
SH		 3342
3343 setbuffer(fp, buf, bufsize);
3344 if (generic_record_read(fp, tcp_show_line, f, AF_INET))
aba5acdf 3345 goto outerr;
ab01dbbb 3346 fclose(fp);
aba5acdf
SH		 3347 }
3348
b338a3e7 3349 if ((f->families & FAMILY_MASK(AF_INET6)) &&
69cae645 3350 (fp = net_tcp6_open()) != NULL) {
ab01dbbb
SH		 3351 setbuffer(fp, buf, bufsize);
3352 if (generic_record_read(fp, tcp_show_line, f, AF_INET6))
aba5acdf 3353 goto outerr;
ab01dbbb 3354 fclose(fp);
aba5acdf
SH		 3355 }
3356
3357 free(buf);
3358 return 0;
3359
3360outerr:
3361 do {
3362 int saved_errno = errno;
acd1e437 3363
92de1c2c 3364 free(buf);
ab01dbbb
SH		 3365 if (fp)
3366 fclose(fp);
aba5acdf
SH		 3367 errno = saved_errno;
3368 return -1;
3369 } while (0);
3370}
3371
6c6bbc30
PS		 3372static int dccp_show(struct filter *f)
3373{
3374 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
3375 return 0;
3376
3377 if (!getenv("PROC_NET_DCCP") && !getenv("PROC_ROOT")
3378 && inet_show_netlink(f, NULL, IPPROTO_DCCP) == 0)
3379 return 0;
3380
3381 return 0;
3382}
3383
f89d46ad
PS		 3384static int sctp_show(struct filter *f)
3385{
3386 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
3387 return 0;
3388
3389 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
3390 && inet_show_netlink(f, NULL, IPPROTO_SCTP) == 0)
3391 return 0;
3392
3393 return 0;
3394}
aba5acdf 3395
d1f28cf1 3396static int dgram_show_line(char *line, const struct filter *f, int family)
aba5acdf 3397{
055840f2 3398 struct sockstat s = {};
aba5acdf
SH		 3399 char *loc, *rem, *data;
3400 char opt[256];
3401 int n;
aba5acdf 3402
8250bc9f 3403 if (proc_inet_split_line(line, &loc, &rem, &data))
aba5acdf 3404 return -1;
aba5acdf 3405
8250bc9f 3406 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 3407
8250bc9f
VK		 3408 if (!(f->states & (1 << state)))
3409 return 0;
aba5acdf 3410
8250bc9f 3411 proc_parse_inet_addr(loc, rem, family, &s);
aba5acdf
SH		 3412
3413 if (f->f && run_ssfilter(f->f, &s) == 0)
3414 return 0;
3415
3416 opt[0] = 0;
e7113c61 3417 n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
aba5acdf
SH		 3418 &s.state, &s.wq, &s.rq,
3419 &s.uid, &s.ino,
3420 &s.refcnt, &s.sk, opt);
3421
3422 if (n < 9)
3423 opt[0] = 0;
3424
be7e4d20 3425 s.type = dg_proto == UDP_PROTO ? IPPROTO_UDP : 0;
1267c0b9 3426 inet_stats_print(&s, false);
aba5acdf 3427
f1b39e1b 3428 if (show_details && opt[0])
90351722 3429 out(" opt:\"%s\"", opt);
aba5acdf
SH		 3430
3431 return 0;
3432}
3433
d1f28cf1 3434static int udp_show(struct filter *f)
aba5acdf 3435{
ab01dbbb 3436 FILE *fp = NULL;
aba5acdf 3437
1527a17e
VK		 3438 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
3439 return 0;
3440
ace5cb31
VK		 3441 dg_proto = UDP_PROTO;
3442
346f8ca8
PE		 3443 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
3444 && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0)
3445 return 0;
3446
b338a3e7 3447 if (f->families&FAMILY_MASK(AF_INET)) {
69cae645 3448 if ((fp = net_udp_open()) == NULL)
aba5acdf 3449 goto outerr;
ab01dbbb 3450 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 3451 goto outerr;
ab01dbbb 3452 fclose(fp);
aba5acdf
SH		 3453 }
3454
b338a3e7 3455 if ((f->families&FAMILY_MASK(AF_INET6)) &&
69cae645 3456 (fp = net_udp6_open()) != NULL) {
ab01dbbb 3457 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 3458 goto outerr;
ab01dbbb 3459 fclose(fp);
aba5acdf
SH		 3460 }
3461 return 0;
3462
3463outerr:
3464 do {
3465 int saved_errno = errno;
acd1e437 3466
ab01dbbb
SH		 3467 if (fp)
3468 fclose(fp);
aba5acdf
SH		 3469 errno = saved_errno;
3470 return -1;
3471 } while (0);
3472}
3473
d1f28cf1 3474static int raw_show(struct filter *f)
aba5acdf 3475{
ab01dbbb 3476 FILE *fp = NULL;
aba5acdf 3477
1527a17e
VK		 3478 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
3479 return 0;
3480
aba5acdf
SH		 3481 dg_proto = RAW_PROTO;
3482
41fe6c34
CG		 3483 if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") &&
3484 inet_show_netlink(f, NULL, IPPROTO_RAW) == 0)
3485 return 0;
3486
b338a3e7 3487 if (f->families&FAMILY_MASK(AF_INET)) {
69cae645 3488 if ((fp = net_raw_open()) == NULL)
aba5acdf 3489 goto outerr;
ab01dbbb 3490 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 3491 goto outerr;
ab01dbbb 3492 fclose(fp);
aba5acdf
SH		 3493 }
3494
b338a3e7 3495 if ((f->families&FAMILY_MASK(AF_INET6)) &&
69cae645 3496 (fp = net_raw6_open()) != NULL) {
ab01dbbb 3497 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 3498 goto outerr;
ab01dbbb 3499 fclose(fp);
aba5acdf
SH		 3500 }
3501 return 0;
3502
3503outerr:
3504 do {
3505 int saved_errno = errno;
acd1e437 3506
ab01dbbb
SH		 3507 if (fp)
3508 fclose(fp);
aba5acdf
SH		 3509 errno = saved_errno;
3510 return -1;
3511 } while (0);
3512}
3513
ec4d0d8a 3514#define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
aba5acdf 3515
2d0e538f 3516static void unix_list_drop_first(struct sockstat **list)
aba5acdf 3517{
2d0e538f 3518 struct sockstat *s = *list;
ec4d0d8a 3519
2d0e538f
PS		 3520 (*list) = (*list)->next;
3521 free(s->name);
3522 free(s);
aba5acdf
SH		 3523}
3524
ec4d0d8a 3525static bool unix_type_skip(struct sockstat *s, struct filter *f)
bf4ceee6
VK		 3526{
3527 if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
3528 return true;
3529 if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
3530 return true;
3531 if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
3532 return true;
3533 return false;
3534}
3535
2d0e538f 3536static void unix_stats_print(struct sockstat *s, struct filter *f)
aba5acdf 3537{
b217df10 3538 char port_name[30] = {};
aba5acdf 3539
2d0e538f 3540 sock_state_print(s);
2d791bc8 3541
2d0e538f
PS		 3542 sock_addr_print(s->name ?: "*", " ",
3543 int_to_str(s->lport, port_name), NULL);
3544 sock_addr_print(s->peer_name ?: "*", " ",
3545 int_to_str(s->rport, port_name), NULL);
116ac927 3546
2d0e538f 3547 proc_ctx_print(s);
aba5acdf
SH		 3548}
3549
8a4025f6 3550static int unix_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh,
3551 void *arg)
dfbaa90d 3552{
8a4025f6 3553 struct filter *f = (struct filter *)arg;
dfbaa90d
PE		 3554 struct unix_diag_msg *r = NLMSG_DATA(nlh);
3555 struct rtattr *tb[UNIX_DIAG_MAX+1];
99bb68ff
VK		 3556 char name[128];
3557 struct sockstat stat = { .name = "*", .peer_name = "*" };
dfbaa90d 3558
acd1e437 3559 parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr *)(r+1),
dfbaa90d
PE		 3560 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3561
bf4ceee6
VK		 3562 stat.type = r->udiag_type;
3563 stat.state = r->udiag_state;
ec4d0d8a
VK		 3564 stat.ino = stat.lport = r->udiag_ino;
3565 stat.local.family = stat.remote.family = AF_UNIX;
0d2e01c5 3566
bf4ceee6
VK		 3567 if (unix_type_skip(&stat, f))
3568 return 0;
dfbaa90d 3569
defd61ca
HFS		 3570 if (tb[UNIX_DIAG_RQLEN]) {
3571 struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]);
acd1e437 3572
bf4ceee6
VK		 3573 stat.rq = rql->udiag_rqueue;
3574 stat.wq = rql->udiag_wqueue;
defd61ca 3575 }
dfbaa90d
PE		 3576 if (tb[UNIX_DIAG_NAME]) {
3577 int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
3578
3579 memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
3580 name[len] = '\0';
1dd0cca7
SH		 3581 if (name[0] == '\0') {
3582 int i;
3583 for (i = 0; i < len; i++)
878dadc7
IB		 3584 if (name[i] == '\0')
3585 name[i] = '@';
1dd0cca7 3586 }
99bb68ff
VK		 3587 stat.name = &name[0];
3588 memcpy(stat.local.data, &stat.name, sizeof(stat.name));
bf4ceee6 3589 }
dfbaa90d 3590 if (tb[UNIX_DIAG_PEER])
ec4d0d8a 3591 stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]);
dfbaa90d 3592
29999b0f
VK		 3593 if (f->f && run_ssfilter(f->f, &stat) == 0)
3594 return 0;
3595
bf4ceee6 3596 unix_stats_print(&stat, f);
dfbaa90d 3597
45199997 3598 if (show_mem)
51ff9f24 3599 print_skmeminfo(tb, UNIX_DIAG_MEMINFO);
5b816047
PE		 3600 if (show_details) {
3601 if (tb[UNIX_DIAG_SHUTDOWN]) {
3602 unsigned char mask;
acd1e437 3603
9f1370c0 3604 mask = rta_getattr_u8(tb[UNIX_DIAG_SHUTDOWN]);
90351722
SB		 3605 out(" %c-%c",
3606 mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
5b816047 3607 }
0bab7630
CW		 3608 if (tb[UNIX_DIAG_VFS]) {
3609 struct unix_diag_vfs *uv = RTA_DATA(tb[UNIX_DIAG_VFS]);
3610
3611 out(" ino:%u dev:%u/%u", uv->udiag_vfs_ino, major(uv->udiag_vfs_dev),
3612 minor(uv->udiag_vfs_dev));
3613 }
3614 if (tb[UNIX_DIAG_ICONS]) {
3615 int len = RTA_PAYLOAD(tb[UNIX_DIAG_ICONS]);
3616 __u32 *peers = RTA_DATA(tb[UNIX_DIAG_ICONS]);
3617 int i;
3618
3619 out(" peers:");
3620 for (i = 0; i < len / sizeof(__u32); i++)
3621 out(" %u", peers[i]);
3622 }
5b816047 3623 }
ec4d0d8a 3624
dfbaa90d
PE		 3625 return 0;
3626}
3627
8a4025f6 3628static int handle_netlink_request(struct filter *f, struct nlmsghdr *req,
3629 size_t size, rtnl_filter_t show_one_sock)
dfbaa90d 3630{
8a4025f6 3631 int ret = -1;
3632 struct rtnl_handle rth;
dfbaa90d 3633
8a4025f6 3634 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
dfbaa90d
PE		 3635 return -1;
3636
8a4025f6 3637 rth.dump = MAGIC_SEQ;
dfbaa90d 3638
8a4025f6 3639 if (rtnl_send(&rth, req, size) < 0)
3640 goto Exit;
dfbaa90d 3641
8a4025f6 3642 if (rtnl_dump_filter(&rth, show_one_sock, f))
3643 goto Exit;
dfbaa90d 3644
8a4025f6 3645 ret = 0;
3646Exit:
3647 rtnl_close(&rth);
3648 return ret;
dfbaa90d
PE		 3649}
3650
8a4025f6 3651static int unix_show_netlink(struct filter *f)
d8402b96 3652{
5fb421d4 3653 DIAG_REQUEST(req, struct unix_diag_req r);
d8402b96
AV		 3654
3655 req.r.sdiag_family = AF_UNIX;
3656 req.r.udiag_states = f->states;
3657 req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
3658 if (show_mem)
3659 req.r.udiag_show |= UDIAG_SHOW_MEMINFO;
0bab7630
CW		 3660 if (show_details)
3661 req.r.udiag_show |= UDIAG_SHOW_VFS | UDIAG_SHOW_ICONS;
d8402b96 3662
8a4025f6 3663 return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock);
d8402b96
AV		 3664}
3665
d1f28cf1 3666static int unix_show(struct filter *f)
aba5acdf
SH		 3667{
3668 FILE *fp;
3669 char buf[256];
3670 char name[128];
3671 int newformat = 0;
3672 int cnt;
ec4d0d8a 3673 struct sockstat *list = NULL;
96d45daa
PS		 3674 const int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT,
3675 SS_ESTABLISHED, SS_CLOSING };
aba5acdf 3676
9db7bf15
VK		 3677 if (!filter_af_get(f, AF_UNIX))
3678 return 0;
3679
f25062e9
PS		 3680 if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT")
3681 && unix_show_netlink(f) == 0)
dfbaa90d
PE		 3682 return 0;
3683
ab01dbbb 3684 if ((fp = net_unix_open()) == NULL)
aba5acdf 3685 return -1;
61170fd8 3686 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3687 fclose(fp);
3688 return -1;
3689 }
aba5acdf 3690
ae665a52 3691 if (memcmp(buf, "Peer", 4) == 0)
aba5acdf
SH		 3692 newformat = 1;
3693 cnt = 0;
3694
61170fd8 3695 while (fgets(buf, sizeof(buf), fp)) {
ec4d0d8a 3696 struct sockstat *u, **insp;
aba5acdf
SH		 3697 int flags;
3698
0ee9052f 3699 if (!(u = calloc(1, sizeof(*u))))
aba5acdf 3700 break;
aba5acdf
SH		 3701
3702 if (sscanf(buf, "%x: %x %x %x %x %x %d %s",
ec4d0d8a 3703 &u->rport, &u->rq, &u->wq, &flags, &u->type,
aba5acdf
SH		 3704 &u->state, &u->ino, name) < 8)
3705 name[0] = 0;
3706
ec4d0d8a
VK		 3707 u->lport = u->ino;
3708 u->local.family = u->remote.family = AF_UNIX;
3709
3710 if (flags & (1 << 16)) {
aba5acdf 3711 u->state = SS_LISTEN;
0aa03350
PS		 3712 } else if (u->state > 0 &&
3713 u->state <= ARRAY_SIZE(unix_state_map)) {
aba5acdf 3714 u->state = unix_state_map[u->state-1];
ec4d0d8a 3715 if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport)
aba5acdf
SH		 3716 u->state = SS_ESTABLISHED;
3717 }
2d0e538f
PS		 3718 if (unix_type_skip(u, f) ||
3719 !(f->states & (1 << u->state))) {
3720 free(u);
3721 continue;
3722 }
aba5acdf
SH		 3723
3724 if (!newformat) {
ec4d0d8a 3725 u->rport = 0;
aba5acdf
SH		 3726 u->rq = 0;
3727 u->wq = 0;
3728 }
3729
2d0e538f
PS		 3730 if (name[0]) {
3731 u->name = strdup(name);
46131577
PS		 3732 if (!u->name) {
3733 free(u);
2d0e538f 3734 break;
46131577 3735 }
2d0e538f
PS		 3736 }
3737
3738 if (u->rport) {
3739 struct sockstat *p;
3740
3741 for (p = list; p; p = p->next) {
3742 if (u->rport == p->lport)
3743 break;
3744 }
3745 if (!p)
3746 u->peer_name = "?";
3747 else
3748 u->peer_name = p->name ? : "*";
3749 }
3750
3751 if (f->f) {
3752 struct sockstat st = {
3753 .local.family = AF_UNIX,
3754 .remote.family = AF_UNIX,
3755 };
3756
3757 memcpy(st.local.data, &u->name, sizeof(u->name));
ebbb219c
AQ		 3758 /* when parsing the old format rport is set to 0 and
3759 * therefore peer_name remains NULL
3760 */
3761 if (u->peer_name && strcmp(u->peer_name, "*"))
2d0e538f
PS		 3762 memcpy(st.remote.data, &u->peer_name,
3763 sizeof(u->peer_name));
3764 if (run_ssfilter(f->f, &st) == 0) {
3765 free(u->name);
3766 free(u);
3767 continue;
3768 }
3769 }
3770
aba5acdf
SH		 3771 insp = &list;
3772 while (*insp) {
3773 if (u->type < (*insp)->type ||
3774 (u->type == (*insp)->type &&
3775 u->ino < (*insp)->ino))
3776 break;
3777 insp = &(*insp)->next;
3778 }
3779 u->next = *insp;
3780 *insp = u;
3781
aba5acdf 3782 if (++cnt > MAX_UNIX_REMEMBER) {
2d0e538f
PS		 3783 while (list) {
3784 unix_stats_print(list, f);
2d0e538f
PS		 3785 unix_list_drop_first(&list);
3786 }
aba5acdf
SH		 3787 cnt = 0;
3788 }
3789 }
a3fd8e58 3790 fclose(fp);
2d0e538f 3791 while (list) {
bf4ceee6 3792 unix_stats_print(list, f);
2d0e538f 3793 unix_list_drop_first(&list);
aba5acdf
SH		 3794 }
3795
3796 return 0;
3797}
3798
89f634f9 3799static int packet_stats_print(struct sockstat *s, const struct filter *f)
4a0053b6 3800{
b217df10
VK		 3801 const char *addr, *port;
3802 char ll_name[16];
372c30d2 3803
be7e4d20
PS		 3804 s->local.family = s->remote.family = AF_PACKET;
3805
4a0053b6 3806 if (f->f) {
89f634f9 3807 s->local.data[0] = s->prot;
89f634f9 3808 if (run_ssfilter(f->f, s) == 0)
4a0053b6
VK		 3809 return 1;
3810 }
372c30d2 3811
be7e4d20 3812 sock_state_print(s);
372c30d2 3813
b217df10
VK		 3814 if (s->prot == 3)
3815 addr = "*";
3816 else
3817 addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name));
3818
3819 if (s->iface == 0)
3820 port = "*";
3821 else
3822 port = xll_index_to_name(s->iface);
372c30d2 3823
b217df10
VK		 3824 sock_addr_print(addr, ":", port, NULL);
3825 sock_addr_print("", "*", "", NULL);
116ac927 3826
5f27ac1d 3827 proc_ctx_print(s);
116ac927 3828
f1b39e1b
VK		 3829 if (show_details)
3830 sock_details_print(s);
3831
4a0053b6
VK		 3832 return 0;
3833}
3834
2631b856
VK		 3835static void packet_show_ring(struct packet_diag_ring *ring)
3836{
90351722
SB		 3837 out("blk_size:%d", ring->pdr_block_size);
3838 out(",blk_nr:%d", ring->pdr_block_nr);
3839 out(",frm_size:%d", ring->pdr_frame_size);
3840 out(",frm_nr:%d", ring->pdr_frame_nr);
3841 out(",tmo:%d", ring->pdr_retire_tmo);
3842 out(",features:0x%x", ring->pdr_features);
2631b856
VK		 3843}
3844
4a0053b6
VK		 3845static int packet_show_sock(const struct sockaddr_nl *addr,
3846 struct nlmsghdr *nlh, void *arg)
3847{
3848 const struct filter *f = arg;
3849 struct packet_diag_msg *r = NLMSG_DATA(nlh);
2631b856
VK		 3850 struct packet_diag_info *pinfo = NULL;
3851 struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL;
4a0053b6 3852 struct rtattr *tb[PACKET_DIAG_MAX+1];
89f634f9 3853 struct sockstat stat = {};
2631b856
VK		 3854 uint32_t fanout = 0;
3855 bool has_fanout = false;
4a0053b6 3856
acd1e437 3857 parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr *)(r+1),
4a0053b6
VK		 3858 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3859
3860 /* use /proc/net/packet if all info are not available */
3861 if (!tb[PACKET_DIAG_MEMINFO])
3862 return -1;
3863
2d791bc8
VK		 3864 stat.type = r->pdiag_type;
3865 stat.prot = r->pdiag_num;
3866 stat.ino = r->pdiag_ino;
3867 stat.state = SS_CLOSE;
f1b39e1b 3868 stat.sk = cookie_sk_get(&r->pdiag_cookie[0]);
4a0053b6
VK		 3869
3870 if (tb[PACKET_DIAG_MEMINFO]) {
3871 __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]);
acd1e437 3872
4a0053b6
VK		 3873 stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3874 }
3875
3876 if (tb[PACKET_DIAG_INFO]) {
2631b856 3877 pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
2d791bc8 3878 stat.lport = stat.iface = pinfo->pdi_index;
4a0053b6
VK		 3879 }
3880
f1b39e1b 3881 if (tb[PACKET_DIAG_UID])
9f1370c0 3882 stat.uid = rta_getattr_u32(tb[PACKET_DIAG_UID]);
f1b39e1b 3883
2631b856
VK		 3884 if (tb[PACKET_DIAG_RX_RING])
3885 ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]);
3886
3887 if (tb[PACKET_DIAG_TX_RING])
3888 ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]);
3889
3890 if (tb[PACKET_DIAG_FANOUT]) {
3891 has_fanout = true;
9f1370c0 3892 fanout = rta_getattr_u32(tb[PACKET_DIAG_FANOUT]);
2631b856
VK		 3893 }
3894
4a0053b6
VK		 3895 if (packet_stats_print(&stat, f))
3896 return 0;
3897
2631b856
VK		 3898 if (show_details) {
3899 if (pinfo) {
90351722
SB		 3900 out("\n\tver:%d", pinfo->pdi_version);
3901 out(" cpy_thresh:%d", pinfo->pdi_copy_thresh);
3902 out(" flags( ");
2631b856 3903 if (pinfo->pdi_flags & PDI_RUNNING)
90351722 3904 out("running");
2631b856 3905 if (pinfo->pdi_flags & PDI_AUXDATA)
90351722 3906 out(" auxdata");
2631b856 3907 if (pinfo->pdi_flags & PDI_ORIGDEV)
90351722 3908 out(" origdev");
2631b856 3909 if (pinfo->pdi_flags & PDI_VNETHDR)
90351722 3910 out(" vnethdr");
2631b856 3911 if (pinfo->pdi_flags & PDI_LOSS)
90351722 3912 out(" loss");
2631b856 3913 if (!pinfo->pdi_flags)
90351722
SB		 3914 out("0");
3915 out(" )");
2631b856
VK		 3916 }
3917 if (ring_rx) {
90351722 3918 out("\n\tring_rx(");
2631b856 3919 packet_show_ring(ring_rx);
90351722 3920 out(")");
2631b856
VK		 3921 }
3922 if (ring_tx) {
90351722 3923 out("\n\tring_tx(");
2631b856 3924 packet_show_ring(ring_tx);
90351722 3925 out(")");
2631b856
VK		 3926 }
3927 if (has_fanout) {
3928 uint16_t type = (fanout >> 16) & 0xffff;
3929
90351722
SB		 3930 out("\n\tfanout(");
3931 out("id:%d,", fanout & 0xffff);
3932 out("type:");
2631b856
VK		 3933
3934 if (type == 0)
90351722 3935 out("hash");
2631b856 3936 else if (type == 1)
90351722 3937 out("lb");
2631b856 3938 else if (type == 2)
90351722 3939 out("cpu");
2631b856 3940 else if (type == 3)
90351722 3941 out("roll");
2631b856 3942 else if (type == 4)
90351722 3943 out("random");
2631b856 3944 else if (type == 5)
90351722 3945 out("qm");
2631b856 3946 else
90351722 3947 out("0x%x", type);
2631b856 3948
90351722 3949 out(")");
2631b856
VK		 3950 }
3951 }
3952
372c30d2
ND		 3953 if (show_bpf && tb[PACKET_DIAG_FILTER]) {
3954 struct sock_filter *fil =
3955 RTA_DATA(tb[PACKET_DIAG_FILTER]);
3956 int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) /
3957 sizeof(struct sock_filter);
3958
90351722 3959 out("\n\tbpf filter (%d): ", num);
372c30d2 3960 while (num) {
90351722
SB		 3961 out(" 0x%02x %u %u %u,",
3962 fil->code, fil->jt, fil->jf, fil->k);
372c30d2
ND		 3963 num--;
3964 fil++;
3965 }
3966 }
430e05d3
RP		 3967
3968 if (show_mem)
3969 print_skmeminfo(tb, PACKET_DIAG_MEMINFO);
372c30d2
ND		 3970 return 0;
3971}
3972
8a4025f6 3973static int packet_show_netlink(struct filter *f)
372c30d2 3974{
5fb421d4 3975 DIAG_REQUEST(req, struct packet_diag_req r);
372c30d2 3976
372c30d2 3977 req.r.sdiag_family = AF_PACKET;
2631b856
VK		 3978 req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO |
3979 PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT;
372c30d2 3980
8a4025f6 3981 return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock);
372c30d2
ND		 3982}
3983
4a0053b6
VK		 3984static int packet_show_line(char *buf, const struct filter *f, int fam)
3985{
3986 unsigned long long sk;
89f634f9 3987 struct sockstat stat = {};
4a0053b6
VK		 3988 int type, prot, iface, state, rq, uid, ino;
3989
3990 sscanf(buf, "%llx %*d %d %x %d %d %u %u %u",
3991 &sk,
3992 &type, &prot, &iface, &state,
3993 &rq, &uid, &ino);
3994
3995 if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB)))
3996 return 0;
3997 if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB)))
3998 return 0;
3999
4000 stat.type = type;
4001 stat.prot = prot;
2d791bc8 4002 stat.lport = stat.iface = iface;
4a0053b6
VK		 4003 stat.state = state;
4004 stat.rq = rq;
4005 stat.uid = uid;
4006 stat.ino = ino;
2d791bc8
VK		 4007 stat.state = SS_CLOSE;
4008
4a0053b6
VK		 4009 if (packet_stats_print(&stat, f))
4010 return 0;
4011
4a0053b6
VK		 4012 return 0;
4013}
aba5acdf 4014
d1f28cf1 4015static int packet_show(struct filter *f)
aba5acdf
SH		 4016{
4017 FILE *fp;
b95d28c3 4018 int rc = 0;
3d0b7439 4019
9db7bf15 4020 if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE)))
b9ea445d 4021 return 0;
aba5acdf 4022
4a0053b6
VK		 4023 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
4024 packet_show_netlink(f) == 0)
372c30d2
ND		 4025 return 0;
4026
ab01dbbb 4027 if ((fp = net_packet_open()) == NULL)
aba5acdf 4028 return -1;
4a0053b6 4029 if (generic_record_read(fp, packet_show_line, f, AF_PACKET))
b95d28c3 4030 rc = -1;
aba5acdf 4031
b95d28c3
PS		 4032 fclose(fp);
4033 return rc;
aba5acdf
SH		 4034}
4035
5f24ec0e 4036static int netlink_show_one(struct filter *f,
acd1e437
SH		 4037 int prot, int pid, unsigned int groups,
4038 int state, int dst_pid, unsigned int dst_group,
129709ae
AV		 4039 int rq, int wq,
4040 unsigned long long sk, unsigned long long cb)
4041{
301826be
PS		 4042 struct sockstat st = {
4043 .state = SS_CLOSE,
4044 .rq = rq,
4045 .wq = wq,
4046 .local.family = AF_NETLINK,
4047 .remote.family = AF_NETLINK,
4048 };
acd1e437 4049
b217df10
VK		 4050 SPRINT_BUF(prot_buf) = {};
4051 const char *prot_name;
4052 char procname[64] = {};
eef43b50 4053
129709ae 4054 if (f->f) {
055840f2
VK		 4055 st.rport = -1;
4056 st.lport = pid;
4057 st.local.data[0] = prot;
055840f2 4058 if (run_ssfilter(f->f, &st) == 0)
5f24ec0e 4059 return 1;
129709ae
AV		 4060 }
4061
be7e4d20 4062 sock_state_print(&st);
eef43b50 4063
b217df10
VK		 4064 if (resolve_services)
4065 prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf));
4066 else
4067 prot_name = int_to_str(prot, prot_buf);
eef43b50 4068
129709ae 4069 if (pid == -1) {
b217df10 4070 procname[0] = '*';
129709ae
AV		 4071 } else if (resolve_services) {
4072 int done = 0;
acd1e437 4073
129709ae
AV		 4074 if (!pid) {
4075 done = 1;
da8034a0 4076 strncpy(procname, "kernel", 7);
129709ae 4077 } else if (pid > 0) {
129709ae 4078 FILE *fp;
acd1e437 4079
0ee9052f 4080 snprintf(procname, sizeof(procname), "%s/%d/stat",
129709ae
AV		 4081 getenv("PROC_ROOT") ? : "/proc", pid);
4082 if ((fp = fopen(procname, "r")) != NULL) {
4083 if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
0ee9052f 4084 snprintf(procname+strlen(procname),
4085 sizeof(procname)-strlen(procname),
4086 "/%d", pid);
129709ae
AV		 4087 done = 1;
4088 }
4089 fclose(fp);
4090 }
4091 }
4092 if (!done)
b217df10 4093 int_to_str(pid, procname);
129709ae 4094 } else {
b217df10 4095 int_to_str(pid, procname);
129709ae 4096 }
f271fe01 4097
b217df10
VK		 4098 sock_addr_print(prot_name, ":", procname, NULL);
4099
f271fe01 4100 if (state == NETLINK_CONNECTED) {
b217df10
VK		 4101 char dst_group_buf[30];
4102 char dst_pid_buf[30];
acd1e437 4103
b217df10
VK		 4104 sock_addr_print(int_to_str(dst_group, dst_group_buf), ":",
4105 int_to_str(dst_pid, dst_pid_buf), NULL);
f271fe01 4106 } else {
b217df10 4107 sock_addr_print("", "*", "", NULL);
f271fe01 4108 }
129709ae 4109
116ac927 4110 char *pid_context = NULL;
acd1e437 4111
116ac927
RH		 4112 if (show_proc_ctx) {
4113 /* The pid value will either be:
4114 * 0 if destination kernel - show kernel initial context.
4115 * A valid process pid - use getpidcon.
4116 * A unique value allocated by the kernel or netlink user
4117 * to the process - show context as "not available".
4118 */
4119 if (!pid)
4120 security_get_initial_context("kernel", &pid_context);
4121 else if (pid > 0)
4122 getpidcon(pid, &pid_context);
4123
90351722 4124 out(" proc_ctx=%s", pid_context ? : "unavailable");
22658ff5 4125 free(pid_context);
116ac927
RH		 4126 }
4127
129709ae 4128 if (show_details) {
90351722 4129 out(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups);
129709ae 4130 }
129709ae 4131
5f24ec0e 4132 return 0;
129709ae
AV		 4133}
4134
8a4025f6 4135static int netlink_show_sock(const struct sockaddr_nl *addr,
4136 struct nlmsghdr *nlh, void *arg)
ecb928c8 4137{
8a4025f6 4138 struct filter *f = (struct filter *)arg;
ecb928c8
AV		 4139 struct netlink_diag_msg *r = NLMSG_DATA(nlh);
4140 struct rtattr *tb[NETLINK_DIAG_MAX+1];
4141 int rq = 0, wq = 0;
4142 unsigned long groups = 0;
4143
acd1e437 4144 parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr *)(r+1),
ecb928c8
AV		 4145 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
4146
4147 if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS]))
4148 groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]);
4149
4150 if (tb[NETLINK_DIAG_MEMINFO]) {
4151 const __u32 *skmeminfo;
acd1e437 4152
ecb928c8
AV		 4153 skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]);
4154
4155 rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
4156 wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC];
4157 }
4158
5f24ec0e 4159 if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups,
ecb928c8 4160 r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group,
5f24ec0e
VK		 4161 rq, wq, 0, 0)) {
4162 return 0;
4163 }
ecb928c8
AV		 4164
4165 if (show_mem) {
90351722 4166 out("\t");
ecb928c8 4167 print_skmeminfo(tb, NETLINK_DIAG_MEMINFO);
ecb928c8
AV		 4168 }
4169
4170 return 0;
4171}
4172
8a4025f6 4173static int netlink_show_netlink(struct filter *f)
ecb928c8 4174{
5fb421d4 4175 DIAG_REQUEST(req, struct netlink_diag_req r);
ecb928c8
AV		 4176
4177 req.r.sdiag_family = AF_NETLINK;
4178 req.r.sdiag_protocol = NDIAG_PROTO_ALL;
4179 req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO;
4180
8a4025f6 4181 return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock);
ecb928c8
AV		 4182}
4183
d1f28cf1 4184static int netlink_show(struct filter *f)
aba5acdf
SH		 4185{
4186 FILE *fp;
4187 char buf[256];
4188 int prot, pid;
acd1e437 4189 unsigned int groups;
aba5acdf
SH		 4190 int rq, wq, rc;
4191 unsigned long long sk, cb;
4192
9db7bf15 4193 if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE)))
b9ea445d
VK		 4194 return 0;
4195
129709ae 4196 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
8a4025f6 4197 netlink_show_netlink(f) == 0)
129709ae
AV		 4198 return 0;
4199
ab01dbbb 4200 if ((fp = net_netlink_open()) == NULL)
aba5acdf 4201 return -1;
61170fd8 4202 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 4203 fclose(fp);
4204 return -1;
4205 }
aba5acdf 4206
61170fd8 4207 while (fgets(buf, sizeof(buf), fp)) {
aba5acdf
SH		 4208 sscanf(buf, "%llx %d %d %x %d %d %llx %d",
4209 &sk,
4210 &prot, &pid, &groups, &rq, &wq, &cb, &rc);
4211
f271fe01 4212 netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb);
aba5acdf
SH		 4213 }
4214
b95d28c3 4215 fclose(fp);
aba5acdf
SH		 4216 return 0;
4217}
4218
c759116a
SH		 4219static bool vsock_type_skip(struct sockstat *s, struct filter *f)
4220{
4221 if (s->type == SOCK_STREAM && !(f->dbs & (1 << VSOCK_ST_DB)))
4222 return true;
4223 if (s->type == SOCK_DGRAM && !(f->dbs & (1 << VSOCK_DG_DB)))
4224 return true;
4225 return false;
4226}
4227
4228static void vsock_addr_print(inet_prefix *a, __u32 port)
4229{
4230 char cid_str[sizeof("4294967295")];
4231 char port_str[sizeof("4294967295")];
4232 __u32 cid;
4233
4234 memcpy(&cid, a->data, sizeof(cid));
4235
4236 if (cid == ~(__u32)0)
4237 snprintf(cid_str, sizeof(cid_str), "*");
4238 else
4239 snprintf(cid_str, sizeof(cid_str), "%u", cid);
4240
4241 if (port == ~(__u32)0)
4242 snprintf(port_str, sizeof(port_str), "*");
4243 else
4244 snprintf(port_str, sizeof(port_str), "%u", port);
4245
4246 sock_addr_print(cid_str, ":", port_str, NULL);
4247}
4248
4249static void vsock_stats_print(struct sockstat *s, struct filter *f)
4250{
4251 sock_state_print(s);
4252
4253 vsock_addr_print(&s->local, s->lport);
4254 vsock_addr_print(&s->remote, s->rport);
4255
4256 proc_ctx_print(s);
c759116a
SH		 4257}
4258
4259static int vsock_show_sock(const struct sockaddr_nl *addr,
4260 struct nlmsghdr *nlh, void *arg)
4261{
4262 struct filter *f = (struct filter *)arg;
4263 struct vsock_diag_msg *r = NLMSG_DATA(nlh);
4264 struct sockstat stat = {
4265 .type = r->vdiag_type,
4266 .lport = r->vdiag_src_port,
4267 .rport = r->vdiag_dst_port,
4268 .state = r->vdiag_state,
4269 .ino = r->vdiag_ino,
4270 };
4271
4272 vsock_set_inet_prefix(&stat.local, r->vdiag_src_cid);
4273 vsock_set_inet_prefix(&stat.remote, r->vdiag_dst_cid);
4274
4275 if (vsock_type_skip(&stat, f))
4276 return 0;
4277
4278 if (f->f && run_ssfilter(f->f, &stat) == 0)
4279 return 0;
4280
4281 vsock_stats_print(&stat, f);
4282
4283 return 0;
4284}
4285
4286static int vsock_show(struct filter *f)
4287{
4288 DIAG_REQUEST(req, struct vsock_diag_req r);
4289
4290 if (!filter_af_get(f, AF_VSOCK))
4291 return 0;
4292
4293 req.r.sdiag_family = AF_VSOCK;
4294 req.r.vdiag_states = f->states;
4295
4296 return handle_netlink_request(f, &req.nlh, sizeof(req), vsock_show_sock);
4297}
4298
5caf79a0
GM		 4299static void tipc_sock_addr_print(struct rtattr *net_addr, struct rtattr *id)
4300{
4301 uint32_t node = rta_getattr_u32(net_addr);
4302 uint32_t identity = rta_getattr_u32(id);
4303
4304 SPRINT_BUF(addr) = {};
4305 SPRINT_BUF(port) = {};
4306
4307 sprintf(addr, "%u", node);
4308 sprintf(port, "%u", identity);
4309 sock_addr_print(addr, ":", port, NULL);
4310
4311}
4312
4313static int tipc_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh,
4314 void *arg)
4315{
4316 struct rtattr *stat[TIPC_NLA_SOCK_STAT_MAX + 1] = {};
4317 struct rtattr *attrs[TIPC_NLA_SOCK_MAX + 1] = {};
4318 struct rtattr *con[TIPC_NLA_CON_MAX + 1] = {};
4319 struct rtattr *info[TIPC_NLA_MAX + 1] = {};
4320 struct rtattr *msg_ref;
4321 struct sockstat ss = {};
4322
4323 parse_rtattr(info, TIPC_NLA_MAX, NLMSG_DATA(nlh),
4324 NLMSG_PAYLOAD(nlh, 0));
4325
4326 if (!info[TIPC_NLA_SOCK])
4327 return 0;
4328
4329 msg_ref = info[TIPC_NLA_SOCK];
4330 parse_rtattr(attrs, TIPC_NLA_SOCK_MAX, RTA_DATA(msg_ref),
4331 RTA_PAYLOAD(msg_ref));
4332
4333 msg_ref = attrs[TIPC_NLA_SOCK_STAT];
4334 parse_rtattr(stat, TIPC_NLA_SOCK_STAT_MAX,
4335 RTA_DATA(msg_ref), RTA_PAYLOAD(msg_ref));
4336
4337
4338 ss.local.family = AF_TIPC;
4339 ss.type = rta_getattr_u32(attrs[TIPC_NLA_SOCK_TYPE]);
4340 ss.state = rta_getattr_u32(attrs[TIPC_NLA_SOCK_TIPC_STATE]);
4341 ss.uid = rta_getattr_u32(attrs[TIPC_NLA_SOCK_UID]);
4342 ss.ino = rta_getattr_u32(attrs[TIPC_NLA_SOCK_INO]);
4343 ss.rq = rta_getattr_u32(stat[TIPC_NLA_SOCK_STAT_RCVQ]);
4344 ss.wq = rta_getattr_u32(stat[TIPC_NLA_SOCK_STAT_SENDQ]);
4345 ss.sk = rta_getattr_u64(attrs[TIPC_NLA_SOCK_COOKIE]);
4346
4347 sock_state_print (&ss);
4348
4349 tipc_sock_addr_print(attrs[TIPC_NLA_SOCK_ADDR],
4350 attrs[TIPC_NLA_SOCK_REF]);
4351
4352 msg_ref = attrs[TIPC_NLA_SOCK_CON];
4353 if (msg_ref) {
4354 parse_rtattr(con, TIPC_NLA_CON_MAX,
4355 RTA_DATA(msg_ref), RTA_PAYLOAD(msg_ref));
4356
4357 tipc_sock_addr_print(con[TIPC_NLA_CON_NODE],
4358 con[TIPC_NLA_CON_SOCK]);
4359 } else
4360 sock_addr_print("", "-", "", NULL);
4361
4362 if (show_details)
4363 sock_details_print(&ss);
4364
4365 proc_ctx_print(&ss);
4366
4367 if (show_tipcinfo) {
4368 out("\n type:%s", stype_nameg[ss.type]);
4369 out(" cong:%s ",
4370 stat[TIPC_NLA_SOCK_STAT_LINK_CONG] ? "link" :
4371 stat[TIPC_NLA_SOCK_STAT_CONN_CONG] ? "conn" : "none");
4372 out(" drop:%d ",
4373 rta_getattr_u32(stat[TIPC_NLA_SOCK_STAT_DROP]));
4374
4375 if (attrs[TIPC_NLA_SOCK_HAS_PUBL])
4376 out(" publ");
4377
4378 if (con[TIPC_NLA_CON_FLAG])
4379 out(" via {%u,%u} ",
4380 rta_getattr_u32(con[TIPC_NLA_CON_TYPE]),
4381 rta_getattr_u32(con[TIPC_NLA_CON_INST]));
4382 }
4383
4384 return 0;
4385}
4386
4387static int tipc_show(struct filter *f)
4388{
4389 DIAG_REQUEST(req, struct tipc_sock_diag_req r);
4390
4391 memset(&req.r, 0, sizeof(req.r));
4392 req.r.sdiag_family = AF_TIPC;
4393 req.r.tidiag_states = f->states;
4394
4395 return handle_netlink_request(f, &req.nlh, sizeof(req), tipc_show_sock);
4396}
4397
6885e3bf
CG		 4398struct sock_diag_msg {
4399 __u8 sdiag_family;
4400};
4401
4402static int generic_show_sock(const struct sockaddr_nl *addr,
4403 struct nlmsghdr *nlh, void *arg)
4404{
4405 struct sock_diag_msg *r = NLMSG_DATA(nlh);
4406 struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX };
32ea3d54 4407 int ret;
6885e3bf
CG		 4408
4409 switch (r->sdiag_family) {
4410 case AF_INET:
4411 case AF_INET6:
97352f1b 4412 inet_arg.rth = inet_arg.f->rth_for_killing;
32ea3d54
SB		 4413 ret = show_one_inet_sock(addr, nlh, &inet_arg);
4414 break;
6885e3bf 4415 case AF_UNIX:
32ea3d54
SB		 4416 ret = unix_show_sock(addr, nlh, arg);
4417 break;
6885e3bf 4418 case AF_PACKET:
32ea3d54
SB		 4419 ret = packet_show_sock(addr, nlh, arg);
4420 break;
6885e3bf 4421 case AF_NETLINK:
32ea3d54
SB		 4422 ret = netlink_show_sock(addr, nlh, arg);
4423 break;
c759116a 4424 case AF_VSOCK:
32ea3d54
SB		 4425 ret = vsock_show_sock(addr, nlh, arg);
4426 break;
6885e3bf 4427 default:
32ea3d54 4428 ret = -1;
6885e3bf 4429 }
32ea3d54
SB		 4430
4431 render();
4432
4433 return ret;
6885e3bf
CG		 4434}
4435
4436static int handle_follow_request(struct filter *f)
4437{
6b224dad 4438 int ret = 0;
6885e3bf 4439 int groups = 0;
97352f1b 4440 struct rtnl_handle rth, rth2;
6885e3bf 4441
b338a3e7 4442 if (f->families & FAMILY_MASK(AF_INET) && f->dbs & (1 << TCP_DB))
6885e3bf 4443 groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1);
b338a3e7 4444 if (f->families & FAMILY_MASK(AF_INET) && f->dbs & (1 << UDP_DB))
6885e3bf 4445 groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1);
b338a3e7 4446 if (f->families & FAMILY_MASK(AF_INET6) && f->dbs & (1 << TCP_DB))
6885e3bf 4447 groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1);
b338a3e7 4448 if (f->families & FAMILY_MASK(AF_INET6) && f->dbs & (1 << UDP_DB))
6885e3bf
CG		 4449 groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1);
4450
4451 if (groups == 0)
4452 return -1;
4453
4454 if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG))
4455 return -1;
4456
4457 rth.dump = 0;
4458 rth.local.nl_pid = 0;
4459
97352f1b
MY		 4460 if (f->kill) {
4461 if (rtnl_open_byproto(&rth2, groups, NETLINK_SOCK_DIAG)) {
4462 rtnl_close(&rth);
4463 return -1;
4464 }
4465 f->rth_for_killing = &rth2;
4466 }
4467
6885e3bf 4468 if (rtnl_dump_filter(&rth, generic_show_sock, f))
6b224dad 4469 ret = -1;
6885e3bf 4470
6885e3bf 4471 rtnl_close(&rth);
97352f1b
MY		 4472 if (f->rth_for_killing)
4473 rtnl_close(f->rth_for_killing);
6885e3bf
CG		 4474 return ret;
4475}
4476
d1f28cf1 4477static int get_snmp_int(char *proto, char *key, int *result)
aba5acdf
SH		 4478{
4479 char buf[1024];
4480 FILE *fp;
4481 int protolen = strlen(proto);
4482 int keylen = strlen(key);
4483
4484 *result = 0;
4485
ab01dbbb 4486 if ((fp = net_snmp_open()) == NULL)
aba5acdf
SH		 4487 return -1;
4488
4489 while (fgets(buf, sizeof(buf), fp) != NULL) {
4490 char *p = buf;
4491 int pos = 0;
acd1e437 4492
aba5acdf
SH		 4493 if (memcmp(buf, proto, protolen))
4494 continue;
4495 while ((p = strchr(p, ' ')) != NULL) {
4496 pos++;
4497 p++;
4498 if (memcmp(p, key, keylen) == 0 &&
4499 (p[keylen] == ' ' || p[keylen] == '\n'))
4500 break;
4501 }
4502 if (fgets(buf, sizeof(buf), fp) == NULL)
4503 break;
4504 if (memcmp(buf, proto, protolen))
4505 break;
4506 p = buf;
4507 while ((p = strchr(p, ' ')) != NULL) {
4508 p++;
4509 if (--pos == 0) {
4510 sscanf(p, "%d", result);
4511 fclose(fp);
4512 return 0;
4513 }
4514 }
4515 }
4516
4517 fclose(fp);
4518 errno = ESRCH;
4519 return -1;
4520}
4521
4522
4523/* Get stats from sockstat */
4524
acd1e437 4525struct ssummary {
aba5acdf
SH		 4526 int socks;
4527 int tcp_mem;
4528 int tcp_total;
4529 int tcp_orphans;
4530 int tcp_tws;
4531 int tcp4_hashed;
4532 int udp4;
4533 int raw4;
4534 int frag4;
4535 int frag4_mem;
4536 int tcp6_hashed;
4537 int udp6;
4538 int raw6;
4539 int frag6;
4540 int frag6_mem;
4541};
4542
055840f2 4543static void get_sockstat_line(char *line, struct ssummary *s)
aba5acdf
SH		 4544{
4545 char id[256], rem[256];
4546
4547 if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2)
4548 return;
4549
4550 if (strcmp(id, "sockets:") == 0)
4551 sscanf(rem, "%*s%d", &s->socks);
4552 else if (strcmp(id, "UDP:") == 0)
4553 sscanf(rem, "%*s%d", &s->udp4);
4554 else if (strcmp(id, "UDP6:") == 0)
4555 sscanf(rem, "%*s%d", &s->udp6);
4556 else if (strcmp(id, "RAW:") == 0)
4557 sscanf(rem, "%*s%d", &s->raw4);
4558 else if (strcmp(id, "RAW6:") == 0)
4559 sscanf(rem, "%*s%d", &s->raw6);
4560 else if (strcmp(id, "TCP6:") == 0)
4561 sscanf(rem, "%*s%d", &s->tcp6_hashed);
4562 else if (strcmp(id, "FRAG:") == 0)
4563 sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem);
4564 else if (strcmp(id, "FRAG6:") == 0)
4565 sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem);
4566 else if (strcmp(id, "TCP:") == 0)
4567 sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d",
4568 &s->tcp4_hashed,
4569 &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem);
4570}
4571
055840f2 4572static int get_sockstat(struct ssummary *s)
aba5acdf
SH		 4573{
4574 char buf[256];
4575 FILE *fp;
4576
4577 memset(s, 0, sizeof(*s));
4578
ab01dbbb 4579 if ((fp = net_sockstat_open()) == NULL)
aba5acdf 4580 return -1;
acd1e437 4581 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 4582 get_sockstat_line(buf, s);
4583 fclose(fp);
4584
ab01dbbb 4585 if ((fp = net_sockstat6_open()) == NULL)
aba5acdf 4586 return 0;
acd1e437 4587 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 4588 get_sockstat_line(buf, s);
4589 fclose(fp);
4590
4591 return 0;
4592}
4593
d1f28cf1 4594static int print_summary(void)
aba5acdf 4595{
055840f2 4596 struct ssummary s;
2f938ce1 4597 int tcp_estab;
aba5acdf
SH		 4598
4599 if (get_sockstat(&s) < 0)
4600 perror("ss: get_sockstat");
2f938ce1 4601 if (get_snmp_int("Tcp:", "CurrEstab", &tcp_estab) < 0)
aba5acdf
SH		 4602 perror("ss: get_snmpstat");
4603
10f68773 4604 printf("Total: %d\n", s.socks);
aba5acdf 4605
10f68773
SH		 4606 printf("TCP: %d (estab %d, closed %d, orphaned %d, timewait %d)\n",
4607 s.tcp_total + s.tcp_tws, tcp_estab,
4608 s.tcp_total - (s.tcp4_hashed + s.tcp6_hashed - s.tcp_tws),
4609 s.tcp_orphans, s.tcp_tws);
aba5acdf
SH		 4610
4611 printf("\n");
4612 printf("Transport Total IP IPv6\n");
aba5acdf
SH		 4613 printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6);
4614 printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6);
4615 printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed);
ae665a52 4616 printf("INET %-9d %-9d %-9d\n",
aba5acdf
SH		 4617 s.raw4+s.udp4+s.tcp4_hashed+
4618 s.raw6+s.udp6+s.tcp6_hashed,
4619 s.raw4+s.udp4+s.tcp4_hashed,
4620 s.raw6+s.udp6+s.tcp6_hashed);
4621 printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6);
4622
4623 printf("\n");
4624
4625 return 0;
4626}
4627
7a96e199 4628static void _usage(FILE *dest)
aba5acdf 4629{
7a96e199 4630 fprintf(dest,
aba5acdf
SH		 4631"Usage: ss [ OPTIONS ]\n"
4632" ss [ OPTIONS ] [ FILTER ]\n"
ff041f16
VK		 4633" -h, --help this message\n"
4634" -V, --version output version information\n"
4635" -n, --numeric don't resolve service names\n"
ab61159a 4636" -r, --resolve resolve host names\n"
ff041f16
VK		 4637" -a, --all display all sockets\n"
4638" -l, --listening display listening sockets\n"
ab61159a
SH		 4639" -o, --options show timer information\n"
4640" -e, --extended show detailed socket information\n"
4641" -m, --memory show socket memory usage\n"
ff041f16
VK		 4642" -p, --processes show process using socket\n"
4643" -i, --info show internal TCP information\n"
5caf79a0 4644" --tipcinfo show internal tipc socket information\n"
ff041f16 4645" -s, --summary show socket usage summary\n"
b0f01cf6 4646" -b, --bpf show bpf filter socket information\n"
6885e3bf 4647" -E, --events continually display sockets as they are destroyed\n"
ff041f16
VK		 4648" -Z, --context display process SELinux security contexts\n"
4649" -z, --contexts display process and socket SELinux security contexts\n"
95ce04bc 4650" -N, --net switch to the specified network namespace name\n"
ab61159a
SH		 4651"\n"
4652" -4, --ipv4 display only IP version 4 sockets\n"
4653" -6, --ipv6 display only IP version 6 sockets\n"
ff041f16
VK		 4654" -0, --packet display PACKET sockets\n"
4655" -t, --tcp display only TCP sockets\n"
f89d46ad 4656" -S, --sctp display only SCTP sockets\n"
ff041f16
VK		 4657" -u, --udp display only UDP sockets\n"
4658" -d, --dccp display only DCCP sockets\n"
4659" -w, --raw display only RAW sockets\n"
4660" -x, --unix display only Unix domain sockets\n"
5caf79a0 4661" --tipc display only TIPC sockets\n"
c759116a 4662" --vsock display only vsock sockets\n"
ab61159a 4663" -f, --family=FAMILY display sockets of type FAMILY\n"
5caf79a0 4664" FAMILY := {inet|inet6|link|unix|netlink|vsock|tipc|help}\n"
ab61159a 4665"\n"
fb2594c1 4666" -K, --kill forcibly close sockets, display what was closed\n"
7a4559f6 4667" -H, --no-header Suppress header line\n"
fb2594c1 4668"\n"
583de149 4669" -A, --query=QUERY, --socket=QUERY\n"
5caf79a0 4670" QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink|vsock_stream|vsock_dgram|tipc}[,QUERY]\n"
ab61159a 4671"\n"
583de149 4672" -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
ab61159a 4673" -F, --filter=FILE read filter information from FILE\n"
ff041f16
VK		 4674" FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
4675" STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
ae4e21c9 4676" TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listening|closing}\n"
ff041f16
VK		 4677" connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
4678" synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
4679" bucket := {syn-recv|time-wait}\n"
ae4e21c9 4680" big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listening|closing}\n"
ab61159a 4681 );
7a96e199
AH		 4682}
4683
4684static void help(void) __attribute__((noreturn));
4685static void help(void)
4686{
4687 _usage(stdout);
4688 exit(0);
4689}
4690
4691static void usage(void) __attribute__((noreturn));
4692static void usage(void)
4693{
4694 _usage(stderr);
aba5acdf
SH		 4695 exit(-1);
4696}
4697
4698
d1f28cf1 4699static int scan_state(const char *state)
aba5acdf 4700{
b710a722
PS		 4701 static const char * const sstate_namel[] = {
4702 "UNKNOWN",
4703 [SS_ESTABLISHED] = "established",
4704 [SS_SYN_SENT] = "syn-sent",
4705 [SS_SYN_RECV] = "syn-recv",
4706 [SS_FIN_WAIT1] = "fin-wait-1",
4707 [SS_FIN_WAIT2] = "fin-wait-2",
4708 [SS_TIME_WAIT] = "time-wait",
4709 [SS_CLOSE] = "unconnected",
4710 [SS_CLOSE_WAIT] = "close-wait",
4711 [SS_LAST_ACK] = "last-ack",
4712 [SS_LISTEN] = "listening",
4713 [SS_CLOSING] = "closing",
4714 };
aba5acdf 4715 int i;
acd1e437 4716
aba5acdf
SH		 4717 if (strcasecmp(state, "close") == 0 ||
4718 strcasecmp(state, "closed") == 0)
4719 return (1<<SS_CLOSE);
4720 if (strcasecmp(state, "syn-rcv") == 0)
4721 return (1<<SS_SYN_RECV);
1a5bad5a 4722 if (strcasecmp(state, "established") == 0)
aba5acdf
SH		 4723 return (1<<SS_ESTABLISHED);
4724 if (strcasecmp(state, "all") == 0)
4725 return SS_ALL;
4726 if (strcasecmp(state, "connected") == 0)
4727 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN));
1a5bad5a 4728 if (strcasecmp(state, "synchronized") == 0)
aba5acdf
SH		 4729 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT));
4730 if (strcasecmp(state, "bucket") == 0)
4731 return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT);
4732 if (strcasecmp(state, "big") == 0)
4733 return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT));
acd1e437 4734 for (i = 0; i < SS_MAX; i++) {
1a5bad5a 4735 if (strcasecmp(state, sstate_namel[i]) == 0)
aba5acdf
SH		 4736 return (1<<i);
4737 }
9db7bf15
VK		 4738
4739 fprintf(stderr, "ss: wrong state name: %s\n", state);
4740 exit(-1);
aba5acdf
SH		 4741}
4742
c759116a
SH		 4743/* Values 'v' and 'V' are already used so a non-character is used */
4744#define OPT_VSOCK 256
4745
5caf79a0
GM		 4746/* Values of 't' are already used so a non-character is used */
4747#define OPT_TIPCSOCK 257
4748#define OPT_TIPCINFO 258
4749
ab61159a
SH		 4750static const struct option long_opts[] = {
4751 { "numeric", 0, 0, 'n' },
4752 { "resolve", 0, 0, 'r' },
4753 { "options", 0, 0, 'o' },
4754 { "extended", 0, 0, 'e' },
4755 { "memory", 0, 0, 'm' },
4756 { "info", 0, 0, 'i' },
4757 { "processes", 0, 0, 'p' },
372c30d2 4758 { "bpf", 0, 0, 'b' },
6885e3bf 4759 { "events", 0, 0, 'E' },
351efcde 4760 { "dccp", 0, 0, 'd' },
ab61159a 4761 { "tcp", 0, 0, 't' },
f89d46ad 4762 { "sctp", 0, 0, 'S' },
ab61159a
SH		 4763 { "udp", 0, 0, 'u' },
4764 { "raw", 0, 0, 'w' },
4765 { "unix", 0, 0, 'x' },
5caf79a0 4766 { "tipc", 0, 0, OPT_TIPCSOCK},
c759116a 4767 { "vsock", 0, 0, OPT_VSOCK },
ab61159a
SH		 4768 { "all", 0, 0, 'a' },
4769 { "listening", 0, 0, 'l' },
4770 { "ipv4", 0, 0, '4' },
4771 { "ipv6", 0, 0, '6' },
4772 { "packet", 0, 0, '0' },
4773 { "family", 1, 0, 'f' },
4774 { "socket", 1, 0, 'A' },
583de149 4775 { "query", 1, 0, 'A' },
c3f346b0 4776 { "summary", 0, 0, 's' },
583de149 4777 { "diag", 1, 0, 'D' },
ab61159a
SH		 4778 { "filter", 1, 0, 'F' },
4779 { "version", 0, 0, 'V' },
4780 { "help", 0, 0, 'h' },
116ac927
RH		 4781 { "context", 0, 0, 'Z' },
4782 { "contexts", 0, 0, 'z' },
95ce04bc 4783 { "net", 1, 0, 'N' },
5caf79a0 4784 { "tipcinfo", 0, 0, OPT_TIPCINFO},
fb2594c1 4785 { "kill", 0, 0, 'K' },
7a4559f6 4786 { "no-header", 0, 0, 'H' },
ab61159a 4787 { 0 }
ae665a52 4788
ab61159a
SH		 4789};
4790
aba5acdf
SH		 4791int main(int argc, char *argv[])
4792{
aba5acdf
SH		 4793 int saw_states = 0;
4794 int saw_query = 0;
4795 int do_summary = 0;
7d105b56 4796 const char *dump_tcpdiag = NULL;
aba5acdf
SH		 4797 FILE *filter_fp = NULL;
4798 int ch;
9db7bf15 4799 int state_filter = 0;
aba5acdf 4800
168d97f9
SH		 4801 while ((ch = getopt_long(argc, argv,
4802 "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHS",
ab61159a 4803 long_opts, NULL)) != EOF) {
acd1e437 4804 switch (ch) {
aba5acdf
SH		 4805 case 'n':
4806 resolve_services = 0;
4807 break;
4808 case 'r':
4809 resolve_hosts = 1;
4810 break;
4811 case 'o':
4812 show_options = 1;
4813 break;
4814 case 'e':
4815 show_options = 1;
4816 show_details++;
4817 break;
4818 case 'm':
4819 show_mem = 1;
4820 break;
4821 case 'i':
4822 show_tcpinfo = 1;
4823 break;
4824 case 'p':
4825 show_users++;
fbc0f876 4826 user_ent_hash_build();
aba5acdf 4827 break;
372c30d2
ND		 4828 case 'b':
4829 show_options = 1;
4830 show_bpf++;
4831 break;
6885e3bf
CG		 4832 case 'E':
4833 follow_events = 1;
4834 break;
351efcde 4835 case 'd':
c121111e 4836 filter_db_set(&current_filter, DCCP_DB, true);
351efcde 4837 break;
aba5acdf 4838 case 't':
c121111e 4839 filter_db_set(&current_filter, TCP_DB, true);
aba5acdf 4840 break;
f89d46ad 4841 case 'S':
c121111e 4842 filter_db_set(&current_filter, SCTP_DB, true);
f89d46ad 4843 break;
aba5acdf 4844 case 'u':
c121111e 4845 filter_db_set(&current_filter, UDP_DB, true);
aba5acdf
SH		 4846 break;
4847 case 'w':
c121111e 4848 filter_db_set(&current_filter, RAW_DB, true);
aba5acdf
SH		 4849 break;
4850 case 'x':
9db7bf15 4851 filter_af_set(&current_filter, AF_UNIX);
aba5acdf 4852 break;
c759116a
SH		 4853 case OPT_VSOCK:
4854 filter_af_set(&current_filter, AF_VSOCK);
4855 break;
5caf79a0
GM		 4856 case OPT_TIPCSOCK:
4857 filter_af_set(&current_filter, AF_TIPC);
4858 break;
aba5acdf 4859 case 'a':
9db7bf15 4860 state_filter = SS_ALL;
aba5acdf
SH		 4861 break;
4862 case 'l':
9db7bf15 4863 state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE);
aba5acdf
SH		 4864 break;
4865 case '4':
9db7bf15 4866 filter_af_set(&current_filter, AF_INET);
aba5acdf
SH		 4867 break;
4868 case '6':
9db7bf15 4869 filter_af_set(&current_filter, AF_INET6);
aba5acdf
SH		 4870 break;
4871 case '0':
9db7bf15 4872 filter_af_set(&current_filter, AF_PACKET);
aba5acdf
SH		 4873 break;
4874 case 'f':
4875 if (strcmp(optarg, "inet") == 0)
9db7bf15 4876 filter_af_set(&current_filter, AF_INET);
aba5acdf 4877 else if (strcmp(optarg, "inet6") == 0)
9db7bf15 4878 filter_af_set(&current_filter, AF_INET6);
aba5acdf 4879 else if (strcmp(optarg, "link") == 0)
9db7bf15 4880 filter_af_set(&current_filter, AF_PACKET);
aba5acdf 4881 else if (strcmp(optarg, "unix") == 0)
9db7bf15 4882 filter_af_set(&current_filter, AF_UNIX);
aba5acdf 4883 else if (strcmp(optarg, "netlink") == 0)
9db7bf15 4884 filter_af_set(&current_filter, AF_NETLINK);
5caf79a0
GM		 4885 else if (strcmp(optarg, "tipc") == 0)
4886 filter_af_set(&current_filter, AF_TIPC);
c759116a
SH		 4887 else if (strcmp(optarg, "vsock") == 0)
4888 filter_af_set(&current_filter, AF_VSOCK);
aba5acdf 4889 else if (strcmp(optarg, "help") == 0)
7a96e199 4890 help();
aba5acdf 4891 else {
9db7bf15
VK		 4892 fprintf(stderr, "ss: \"%s\" is invalid family\n",
4893 optarg);
aba5acdf
SH		 4894 usage();
4895 }
4896 break;
4897 case 'A':
4898 {
4899 char *p, *p1;
acd1e437 4900
aba5acdf
SH		 4901 if (!saw_query) {
4902 current_filter.dbs = 0;
7f9dddbe 4903 state_filter = state_filter ?
acd1e437 4904 state_filter : SS_CONN;
aba5acdf
SH		 4905 saw_query = 1;
4906 do_default = 0;
4907 }
4908 p = p1 = optarg;
4909 do {
4910 if ((p1 = strchr(p, ',')) != NULL)
ae665a52 4911 *p1 = 0;
67d5fd55 4912 if (filter_db_parse(&current_filter, p)) {
aba5acdf
SH		 4913 fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p);
4914 usage();
4915 }
4916 p = p1 + 1;
4917 } while (p1);
4918 break;
4919 }
4920 case 's':
4921 do_summary = 1;
4922 break;
4923 case 'D':
4924 dump_tcpdiag = optarg;
4925 break;
4926 case 'F':
4927 if (filter_fp) {
4928 fprintf(stderr, "More than one filter file\n");
4929 exit(-1);
4930 }
4931 if (optarg[0] == '-')
4932 filter_fp = stdin;
4933 else
4934 filter_fp = fopen(optarg, "r");
4935 if (!filter_fp) {
4936 perror("fopen filter file");
4937 exit(-1);
4938 }
4939 break;
4940 case 'v':
4941 case 'V':
4942 printf("ss utility, iproute2-ss%s\n", SNAPSHOT);
4943 exit(0);
116ac927
RH		 4944 case 'z':
4945 show_sock_ctx++;
36df1a6e 4946 /* fall through */
116ac927
RH		 4947 case 'Z':
4948 if (is_selinux_enabled() <= 0) {
4949 fprintf(stderr, "ss: SELinux is not enabled.\n");
4950 exit(1);
4951 }
4952 show_proc_ctx++;
4953 user_ent_hash_build();
4954 break;
95ce04bc
VK		 4955 case 'N':
4956 if (netns_switch(optarg))
4957 exit(1);
4958 break;
5caf79a0
GM		 4959 case OPT_TIPCINFO:
4960 show_tipcinfo = 1;
4961 break;
fb2594c1
LC		 4962 case 'K':
4963 current_filter.kill = 1;
4964 break;
7a4559f6
DA		 4965 case 'H':
4966 show_header = 0;
4967 break;
aba5acdf 4968 case 'h':
7a96e199 4969 help();
f73105ab 4970 case '?':
aba5acdf
SH		 4971 default:
4972 usage();
4973 }
4974 }
4975
4976 argc -= optind;
4977 argv += optind;
4978
aba5acdf
SH		 4979 if (do_summary) {
4980 print_summary();
4981 if (do_default && argc == 0)
4982 exit(0);
4983 }
4984
aba5acdf
SH		 4985 while (argc > 0) {
4986 if (strcmp(*argv, "state") == 0) {
4987 NEXT_ARG();
4988 if (!saw_states)
9db7bf15
VK		 4989 state_filter = 0;
4990 state_filter |= scan_state(*argv);
aba5acdf
SH		 4991 saw_states = 1;
4992 } else if (strcmp(*argv, "exclude") == 0 ||
4993 strcmp(*argv, "excl") == 0) {
4994 NEXT_ARG();
4995 if (!saw_states)
9db7bf15
VK		 4996 state_filter = SS_ALL;
4997 state_filter &= ~scan_state(*argv);
aba5acdf
SH		 4998 saw_states = 1;
4999 } else {
aba5acdf
SH		 5000 break;
5001 }
5002 argc--; argv++;
5003 }
5004
9db7bf15
VK		 5005 if (do_default) {
5006 state_filter = state_filter ? state_filter : SS_CONN;
3e1652c9 5007 filter_db_parse(&current_filter, "all");
9db7bf15
VK		 5008 }
5009
57ff5a10
VK		 5010 filter_states_set(&current_filter, state_filter);
5011 filter_merge_defaults(&current_filter);
5012
9db7bf15 5013 if (resolve_services && resolve_hosts &&
168d97f9 5014 (current_filter.dbs & (UNIX_DBM|INET_L4_DBM)))
9db7bf15
VK		 5015 init_service_resolver();
5016
9db7bf15
VK		 5017 if (current_filter.dbs == 0) {
5018 fprintf(stderr, "ss: no socket tables to show with such filter.\n");
5019 exit(0);
5020 }
5021 if (current_filter.families == 0) {
5022 fprintf(stderr, "ss: no families to show with such filter.\n");
5023 exit(0);
5024 }
aba5acdf
SH		 5025 if (current_filter.states == 0) {
5026 fprintf(stderr, "ss: no socket states to show with such filter.\n");
5027 exit(0);
5028 }
5029
5030 if (dump_tcpdiag) {
5031 FILE *dump_fp = stdout;
acd1e437 5032
aba5acdf
SH		 5033 if (!(current_filter.dbs & (1<<TCP_DB))) {
5034 fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n");
5035 exit(0);
5036 }
5037 if (dump_tcpdiag[0] != '-') {
5038 dump_fp = fopen(dump_tcpdiag, "w");
5039 if (!dump_tcpdiag) {
5040 perror("fopen dump file");
5041 exit(-1);
5042 }
5043 }
3fe5b534 5044 inet_show_netlink(&current_filter, dump_fp, IPPROTO_TCP);
aba5acdf
SH		 5045 fflush(dump_fp);
5046 exit(0);
5047 }
5048
1527a17e
VK		 5049 if (ssfilter_parse(&current_filter.f, argc, argv, filter_fp))
5050 usage();
5051
87b1a7ae
SB		 5052 if (!(current_filter.dbs & (current_filter.dbs - 1)))
5053 columns[COL_NETID].disabled = 1;
59f46b7b 5054
87b1a7ae
SB		 5055 if (!(current_filter.states & (current_filter.states - 1)))
5056 columns[COL_STATE].disabled = 1;
aba5acdf 5057
59f46b7b
SB		 5058 if (show_header)
5059 print_header();
aba5acdf 5060
aba5acdf
SH		 5061 fflush(stdout);
5062
6885e3bf
CG		 5063 if (follow_events)
5064 exit(handle_follow_request(&current_filter));
5065
aba5acdf
SH		 5066 if (current_filter.dbs & (1<<NETLINK_DB))
5067 netlink_show(&current_filter);
5068 if (current_filter.dbs & PACKET_DBM)
5069 packet_show(&current_filter);
5070 if (current_filter.dbs & UNIX_DBM)
5071 unix_show(&current_filter);
5072 if (current_filter.dbs & (1<<RAW_DB))
5073 raw_show(&current_filter);
5074 if (current_filter.dbs & (1<<UDP_DB))
5075 udp_show(&current_filter);
5076 if (current_filter.dbs & (1<<TCP_DB))
6c6bbc30 5077 tcp_show(&current_filter);
351efcde 5078 if (current_filter.dbs & (1<<DCCP_DB))
6c6bbc30 5079 dccp_show(&current_filter);
f89d46ad
PS		 5080 if (current_filter.dbs & (1<<SCTP_DB))
5081 sctp_show(&current_filter);
c759116a
SH		 5082 if (current_filter.dbs & VSOCK_DBM)
5083 vsock_show(&current_filter);
5caf79a0
GM		 5084 if (current_filter.dbs & (1<<TIPC_DB))
5085 tipc_show(&current_filter);
116ac927
RH		 5086
5087 if (show_users || show_proc_ctx || show_sock_ctx)
5088 user_ent_destroy();
5089
32ea3d54 5090 render();
59f46b7b 5091
aba5acdf
SH		 5092 return 0;
5093}
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