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[mirror_iproute2.git] / misc / ss.c
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b9de3ecf 1/*
aba5acdf
SH		 2 * ss.c "sockstat", socket statistics
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
10 */
11
12#include <stdio.h>
13#include <stdlib.h>
14#include <unistd.h>
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>
2abc3d76 45#include <linux/xdp_diag.h>
372c30d2 46#include <linux/packet_diag.h>
ecb928c8 47#include <linux/netlink_diag.h>
f89d46ad 48#include <linux/sctp.h>
c759116a 49#include <linux/vm_sockets_diag.h>
5caf79a0
GM		 50#include <linux/net.h>
51#include <linux/tipc.h>
52#include <linux/tipc_netlink.h>
53#include <linux/tipc_sockets_diag.h>
aba5acdf 54
9700927a
TDS		 55/* AF_VSOCK/PF_VSOCK is only provided since glibc 2.18 */
56#ifndef PF_VSOCK
57#define PF_VSOCK 40
58#endif
59#ifndef AF_VSOCK
60#define AF_VSOCK PF_VSOCK
61#endif
62
8a4025f6 63#define MAGIC_SEQ 123456
aa5bd6a2
SB		 64#define BUF_CHUNK (1024 * 1024) /* Buffer chunk allocation size */
65#define BUF_CHUNKS_MAX 5 /* Maximum number of allocated buffer chunks */
691bd854 66#define LEN_ALIGN(x) (((x) + 1) & ~1)
8a4025f6 67
5fb421d4 68#define DIAG_REQUEST(_req, _r) \
69 struct { \
70 struct nlmsghdr nlh; \
71 _r; \
72 } _req = { \
73 .nlh = { \
74 .nlmsg_type = SOCK_DIAG_BY_FAMILY, \
75 .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\
8a4025f6 76 .nlmsg_seq = MAGIC_SEQ, \
5fb421d4 77 .nlmsg_len = sizeof(_req), \
78 }, \
79 }
80
116ac927
RH		 81#if HAVE_SELINUX
82#include <selinux/selinux.h>
83#else
84/* Stubs for SELinux functions */
85static int is_selinux_enabled(void)
86{
87 return -1;
88}
89
90static int getpidcon(pid_t pid, char **context)
91{
92 *context = NULL;
93 return -1;
94}
95
96static int getfilecon(char *path, char **context)
97{
98 *context = NULL;
99 return -1;
100}
101
102static int security_get_initial_context(char *name, char **context)
103{
104 *context = NULL;
105 return -1;
106}
107#endif
108
3f7bd0fd 109static int resolve_services = 1;
aba5acdf 110int preferred_family = AF_UNSPEC;
3f7bd0fd 111static int show_options;
acd1e437 112int show_details;
3f7bd0fd
SH		 113static int show_users;
114static int show_mem;
115static int show_tcpinfo;
116static int show_bpf;
117static int show_proc_ctx;
118static int show_sock_ctx;
119static int show_header = 1;
120static int follow_events;
121static int sctp_ino;
122static int show_tipcinfo;
0f3f0ca3 123static int show_tos;
296b5de7 124int oneline;
aba5acdf 125
59f46b7b
SB		 126enum col_id {
127 COL_NETID,
128 COL_STATE,
129 COL_RECVQ,
130 COL_SENDQ,
131 COL_ADDR,
132 COL_SERV,
133 COL_RADDR,
134 COL_RSERV,
135 COL_EXT,
136 COL_MAX
137};
138
139enum col_align {
140 ALIGN_LEFT,
141 ALIGN_CENTER,
142 ALIGN_RIGHT
143};
144
145struct column {
146 const enum col_align align;
147 const char *header;
148 const char *ldelim;
87b1a7ae
SB		 149 int disabled;
150 int width; /* Calculated, including additional layout spacing */
151 int max_len; /* Measured maximum field length in this column */
59f46b7b
SB		 152};
153
154static struct column columns[] = {
87b1a7ae
SB		 155 { ALIGN_LEFT, "Netid", "", 0, 0, 0 },
156 { ALIGN_LEFT, "State", " ", 0, 0, 0 },
157 { ALIGN_LEFT, "Recv-Q", " ", 0, 0, 0 },
158 { ALIGN_LEFT, "Send-Q", " ", 0, 0, 0 },
159 { ALIGN_RIGHT, "Local Address:", " ", 0, 0, 0 },
160 { ALIGN_LEFT, "Port", "", 0, 0, 0 },
161 { ALIGN_RIGHT, "Peer Address:", " ", 0, 0, 0 },
162 { ALIGN_LEFT, "Port", "", 0, 0, 0 },
163 { ALIGN_LEFT, "", "", 0, 0, 0 },
59f46b7b
SB		 164};
165
166static struct column *current_field = columns;
691bd854
SB		 167
168/* Output buffer: chained chunks of BUF_CHUNK bytes. Each field is written to
169 * the buffer as a variable size token. A token consists of a 16 bits length
170 * field, followed by a string which is not NULL-terminated.
171 *
172 * A new chunk is allocated and linked when the current chunk doesn't have
173 * enough room to store the current token as a whole.
174 */
175struct buf_chunk {
176 struct buf_chunk *next; /* Next chained chunk */
177 char *end; /* Current end of content */
178 char data[0];
179};
180
181struct buf_token {
182 uint16_t len; /* Data length, excluding length descriptor */
183 char data[0];
184};
185
186static struct {
187 struct buf_token *cur; /* Position of current token in chunk */
188 struct buf_chunk *head; /* First chunk */
189 struct buf_chunk *tail; /* Current chunk */
aa5bd6a2 190 int chunks; /* Number of allocated chunks */
691bd854 191} buffer;
aba5acdf
SH		 192
193static const char *TCP_PROTO = "tcp";
f89d46ad 194static const char *SCTP_PROTO = "sctp";
aba5acdf
SH		 195static const char *UDP_PROTO = "udp";
196static const char *RAW_PROTO = "raw";
acd1e437 197static const char *dg_proto;
aba5acdf 198
acd1e437 199enum {
aba5acdf 200 TCP_DB,
351efcde 201 DCCP_DB,
aba5acdf
SH		 202 UDP_DB,
203 RAW_DB,
204 UNIX_DG_DB,
205 UNIX_ST_DB,
30b669d7 206 UNIX_SQ_DB,
aba5acdf
SH		 207 PACKET_DG_DB,
208 PACKET_R_DB,
209 NETLINK_DB,
f89d46ad 210 SCTP_DB,
c759116a
SH		 211 VSOCK_ST_DB,
212 VSOCK_DG_DB,
5caf79a0 213 TIPC_DB,
2abc3d76 214 XDP_DB,
aba5acdf
SH		 215 MAX_DB
216};
217
218#define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
30b669d7 219#define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB))
aba5acdf 220#define ALL_DB ((1<<MAX_DB)-1)
168d97f9
SH		 221#define INET_L4_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<SCTP_DB))
222#define INET_DBM (INET_L4_DBM | (1<<RAW_DB))
c759116a 223#define VSOCK_DBM ((1<<VSOCK_ST_DB)|(1<<VSOCK_DG_DB))
aba5acdf
SH		 224
225enum {
7d105b56
SH		 226 SS_UNKNOWN,
227 SS_ESTABLISHED,
228 SS_SYN_SENT,
229 SS_SYN_RECV,
230 SS_FIN_WAIT1,
231 SS_FIN_WAIT2,
232 SS_TIME_WAIT,
233 SS_CLOSE,
234 SS_CLOSE_WAIT,
235 SS_LAST_ACK,
236 SS_LISTEN,
237 SS_CLOSING,
238 SS_MAX
aba5acdf
SH		 239};
240
f89d46ad
PS		 241enum {
242 SCTP_STATE_CLOSED = 0,
243 SCTP_STATE_COOKIE_WAIT = 1,
244 SCTP_STATE_COOKIE_ECHOED = 2,
245 SCTP_STATE_ESTABLISHED = 3,
246 SCTP_STATE_SHUTDOWN_PENDING = 4,
247 SCTP_STATE_SHUTDOWN_SENT = 5,
248 SCTP_STATE_SHUTDOWN_RECEIVED = 6,
249 SCTP_STATE_SHUTDOWN_ACK_SENT = 7,
250};
251
9db7bf15
VK		 252#define SS_ALL ((1 << SS_MAX) - 1)
253#define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)))
5caf79a0 254#define TIPC_SS_CONN ((1<<SS_ESTABLISHED)|(1<<SS_LISTEN)|(1<<SS_CLOSE))
aba5acdf
SH		 255
256#include "ssfilter.h"
257
acd1e437 258struct filter {
aba5acdf
SH		 259 int dbs;
260 int states;
b338a3e7 261 uint64_t families;
aba5acdf 262 struct ssfilter *f;
fb2594c1 263 bool kill;
97352f1b 264 struct rtnl_handle *rth_for_killing;
aba5acdf
SH		 265};
266
b338a3e7
SH		 267#define FAMILY_MASK(family) ((uint64_t)1 << (family))
268
9db7bf15
VK		 269static const struct filter default_dbs[MAX_DB] = {
270 [TCP_DB] = {
271 .states = SS_CONN,
b338a3e7 272 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 273 },
274 [DCCP_DB] = {
275 .states = SS_CONN,
b338a3e7 276 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 277 },
278 [UDP_DB] = {
f42a4574 279 .states = (1 << SS_ESTABLISHED),
b338a3e7 280 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 281 },
282 [RAW_DB] = {
f42a4574 283 .states = (1 << SS_ESTABLISHED),
b338a3e7 284 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
9db7bf15
VK		 285 },
286 [UNIX_DG_DB] = {
287 .states = (1 << SS_CLOSE),
b338a3e7 288 .families = FAMILY_MASK(AF_UNIX),
9db7bf15
VK		 289 },
290 [UNIX_ST_DB] = {
291 .states = SS_CONN,
b338a3e7 292 .families = FAMILY_MASK(AF_UNIX),
9db7bf15
VK		 293 },
294 [UNIX_SQ_DB] = {
295 .states = SS_CONN,
b338a3e7 296 .families = FAMILY_MASK(AF_UNIX),
9db7bf15
VK		 297 },
298 [PACKET_DG_DB] = {
299 .states = (1 << SS_CLOSE),
b338a3e7 300 .families = FAMILY_MASK(AF_PACKET),
9db7bf15
VK		 301 },
302 [PACKET_R_DB] = {
303 .states = (1 << SS_CLOSE),
b338a3e7 304 .families = FAMILY_MASK(AF_PACKET),
9db7bf15
VK		 305 },
306 [NETLINK_DB] = {
307 .states = (1 << SS_CLOSE),
b338a3e7 308 .families = FAMILY_MASK(AF_NETLINK),
9db7bf15 309 },
f89d46ad
PS		 310 [SCTP_DB] = {
311 .states = SS_CONN,
b338a3e7 312 .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6),
f89d46ad 313 },
c759116a
SH		 314 [VSOCK_ST_DB] = {
315 .states = SS_CONN,
316 .families = FAMILY_MASK(AF_VSOCK),
317 },
318 [VSOCK_DG_DB] = {
319 .states = SS_CONN,
320 .families = FAMILY_MASK(AF_VSOCK),
321 },
5caf79a0
GM		 322 [TIPC_DB] = {
323 .states = TIPC_SS_CONN,
324 .families = FAMILY_MASK(AF_TIPC),
325 },
2abc3d76
BT		 326 [XDP_DB] = {
327 .states = (1 << SS_CLOSE),
328 .families = FAMILY_MASK(AF_XDP),
329 },
aba5acdf
SH		 330};
331
9db7bf15
VK		 332static const struct filter default_afs[AF_MAX] = {
333 [AF_INET] = {
334 .dbs = INET_DBM,
335 .states = SS_CONN,
336 },
337 [AF_INET6] = {
338 .dbs = INET_DBM,
339 .states = SS_CONN,
340 },
341 [AF_UNIX] = {
342 .dbs = UNIX_DBM,
343 .states = SS_CONN,
344 },
345 [AF_PACKET] = {
346 .dbs = PACKET_DBM,
347 .states = (1 << SS_CLOSE),
348 },
349 [AF_NETLINK] = {
350 .dbs = (1 << NETLINK_DB),
351 .states = (1 << SS_CLOSE),
352 },
c759116a
SH		 353 [AF_VSOCK] = {
354 .dbs = VSOCK_DBM,
355 .states = SS_CONN,
356 },
5caf79a0
GM		 357 [AF_TIPC] = {
358 .dbs = (1 << TIPC_DB),
359 .states = TIPC_SS_CONN,
360 },
2abc3d76
BT		 361 [AF_XDP] = {
362 .dbs = (1 << XDP_DB),
363 .states = (1 << SS_CLOSE),
364 },
9db7bf15
VK		 365};
366
367static int do_default = 1;
368static struct filter current_filter;
369
c121111e 370static void filter_db_set(struct filter *f, int db, bool enable)
9db7bf15 371{
c121111e
PS		 372 if (enable) {
373 f->states |= default_dbs[db].states;
374 f->dbs |= 1 << db;
375 } else {
376 f->dbs &= ~(1 << db);
377 }
9db7bf15
VK		 378 do_default = 0;
379}
380
67d5fd55
PS		 381static int filter_db_parse(struct filter *f, const char *s)
382{
383 const struct {
384 const char *name;
385 int dbs[MAX_DB + 1];
386 } db_name_tbl[] = {
387#define ENTRY(name, ...) { #name, { __VA_ARGS__, MAX_DB } }
388 ENTRY(all, UDP_DB, DCCP_DB, TCP_DB, RAW_DB,
389 UNIX_ST_DB, UNIX_DG_DB, UNIX_SQ_DB,
390 PACKET_R_DB, PACKET_DG_DB, NETLINK_DB,
2abc3d76 391 SCTP_DB, VSOCK_ST_DB, VSOCK_DG_DB, XDP_DB),
67d5fd55
PS		 392 ENTRY(inet, UDP_DB, DCCP_DB, TCP_DB, SCTP_DB, RAW_DB),
393 ENTRY(udp, UDP_DB),
394 ENTRY(dccp, DCCP_DB),
395 ENTRY(tcp, TCP_DB),
396 ENTRY(sctp, SCTP_DB),
397 ENTRY(raw, RAW_DB),
398 ENTRY(unix, UNIX_ST_DB, UNIX_DG_DB, UNIX_SQ_DB),
399 ENTRY(unix_stream, UNIX_ST_DB),
400 ENTRY(u_str, UNIX_ST_DB), /* alias for unix_stream */
401 ENTRY(unix_dgram, UNIX_DG_DB),
402 ENTRY(u_dgr, UNIX_DG_DB), /* alias for unix_dgram */
403 ENTRY(unix_seqpacket, UNIX_SQ_DB),
404 ENTRY(u_seq, UNIX_SQ_DB), /* alias for unix_seqpacket */
405 ENTRY(packet, PACKET_R_DB, PACKET_DG_DB),
406 ENTRY(packet_raw, PACKET_R_DB),
407 ENTRY(p_raw, PACKET_R_DB), /* alias for packet_raw */
408 ENTRY(packet_dgram, PACKET_DG_DB),
409 ENTRY(p_dgr, PACKET_DG_DB), /* alias for packet_dgram */
410 ENTRY(netlink, NETLINK_DB),
411 ENTRY(vsock, VSOCK_ST_DB, VSOCK_DG_DB),
412 ENTRY(vsock_stream, VSOCK_ST_DB),
413 ENTRY(v_str, VSOCK_ST_DB), /* alias for vsock_stream */
414 ENTRY(vsock_dgram, VSOCK_DG_DB),
415 ENTRY(v_dgr, VSOCK_DG_DB), /* alias for vsock_dgram */
2abc3d76 416 ENTRY(xdp, XDP_DB),
67d5fd55
PS		 417#undef ENTRY
418 };
419 bool enable = true;
420 unsigned int i;
421 const int *dbp;
422
423 if (s[0] == '!') {
424 enable = false;
425 s++;
426 }
427 for (i = 0; i < ARRAY_SIZE(db_name_tbl); i++) {
428 if (strcmp(s, db_name_tbl[i].name))
429 continue;
430 for (dbp = db_name_tbl[i].dbs; *dbp != MAX_DB; dbp++)
431 filter_db_set(f, *dbp, enable);
432 return 0;
433 }
434 return -1;
435}
436
9db7bf15
VK		 437static void filter_af_set(struct filter *f, int af)
438{
1527a17e 439 f->states |= default_afs[af].states;
b338a3e7 440 f->families |= FAMILY_MASK(af);
1527a17e
VK		 441 do_default = 0;
442 preferred_family = af;
9db7bf15
VK		 443}
444
445static int filter_af_get(struct filter *f, int af)
446{
b338a3e7 447 return !!(f->families & FAMILY_MASK(af));
9db7bf15
VK		 448}
449
57ff5a10 450static void filter_states_set(struct filter *f, int states)
9db7bf15 451{
57ff5a10 452 if (states)
9d320e1e 453 f->states = states;
57ff5a10 454}
9db7bf15 455
57ff5a10
VK		 456static void filter_merge_defaults(struct filter *f)
457{
458 int db;
459 int af;
9db7bf15 460
57ff5a10
VK		 461 for (db = 0; db < MAX_DB; db++) {
462 if (!(f->dbs & (1 << db)))
463 continue;
9db7bf15 464
57ff5a10
VK		 465 if (!(default_dbs[db].families & f->families))
466 f->families |= default_dbs[db].families;
467 }
468 for (af = 0; af < AF_MAX; af++) {
b338a3e7 469 if (!(f->families & FAMILY_MASK(af)))
57ff5a10
VK		 470 continue;
471
472 if (!(default_afs[af].dbs & f->dbs))
473 f->dbs |= default_afs[af].dbs;
474 }
9db7bf15 475}
aba5acdf 476
ab01dbbb 477static FILE *generic_proc_open(const char *env, const char *name)
aba5acdf 478{
ab01dbbb 479 const char *p = getenv(env);
aba5acdf 480 char store[128];
ab01dbbb 481
aba5acdf
SH		 482 if (!p) {
483 p = getenv("PROC_ROOT") ? : "/proc";
484 snprintf(store, sizeof(store)-1, "%s/%s", p, name);
485 p = store;
486 }
ab01dbbb
SH		 487
488 return fopen(p, "r");
aba5acdf 489}
0cb74a86
PS		 490#define net_tcp_open() generic_proc_open("PROC_NET_TCP", "net/tcp")
491#define net_tcp6_open() generic_proc_open("PROC_NET_TCP6", "net/tcp6")
492#define net_udp_open() generic_proc_open("PROC_NET_UDP", "net/udp")
493#define net_udp6_open() generic_proc_open("PROC_NET_UDP6", "net/udp6")
494#define net_raw_open() generic_proc_open("PROC_NET_RAW", "net/raw")
495#define net_raw6_open() generic_proc_open("PROC_NET_RAW6", "net/raw6")
496#define net_unix_open() generic_proc_open("PROC_NET_UNIX", "net/unix")
497#define net_packet_open() generic_proc_open("PROC_NET_PACKET", \
498 "net/packet")
499#define net_netlink_open() generic_proc_open("PROC_NET_NETLINK", \
500 "net/netlink")
0cb74a86
PS		 501#define net_sockstat_open() generic_proc_open("PROC_NET_SOCKSTAT", \
502 "net/sockstat")
503#define net_sockstat6_open() generic_proc_open("PROC_NET_SOCKSTAT6", \
504 "net/sockstat6")
505#define net_snmp_open() generic_proc_open("PROC_NET_SNMP", "net/snmp")
506#define ephemeral_ports_open() generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", \
507 "sys/net/ipv4/ip_local_port_range")
aba5acdf 508
fbc0f876
SF		 509struct user_ent {
510 struct user_ent *next;
511 unsigned int ino;
512 int pid;
513 int fd;
116ac927
RH		 514 char *process;
515 char *process_ctx;
516 char *socket_ctx;
fbc0f876
SF		 517};
518
519#define USER_ENT_HASH_SIZE 256
3f7bd0fd 520static struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE];
fbc0f876
SF		 521
522static int user_ent_hashfn(unsigned int ino)
aba5acdf 523{
fbc0f876 524 int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino;
aba5acdf 525
fbc0f876
SF		 526 return val & (USER_ENT_HASH_SIZE - 1);
527}
528
116ac927
RH		 529static void user_ent_add(unsigned int ino, char *process,
530 int pid, int fd,
531 char *proc_ctx,
532 char *sock_ctx)
fbc0f876
SF		 533{
534 struct user_ent *p, **pp;
aba5acdf 535
116ac927
RH		 536 p = malloc(sizeof(struct user_ent));
537 if (!p) {
538 fprintf(stderr, "ss: failed to malloc buffer\n");
fbc0f876 539 abort();
116ac927 540 }
fbc0f876
SF		 541 p->next = NULL;
542 p->ino = ino;
543 p->pid = pid;
544 p->fd = fd;
116ac927
RH		 545 p->process = strdup(process);
546 p->process_ctx = strdup(proc_ctx);
547 p->socket_ctx = strdup(sock_ctx);
fbc0f876
SF		 548
549 pp = &user_ent_hash[user_ent_hashfn(ino)];
550 p->next = *pp;
551 *pp = p;
552}
aba5acdf 553
116ac927
RH		 554static void user_ent_destroy(void)
555{
556 struct user_ent *p, *p_next;
557 int cnt = 0;
558
559 while (cnt != USER_ENT_HASH_SIZE) {
560 p = user_ent_hash[cnt];
561 while (p) {
562 free(p->process);
563 free(p->process_ctx);
564 free(p->socket_ctx);
565 p_next = p->next;
566 free(p);
567 p = p_next;
568 }
569 cnt++;
570 }
571}
572
fbc0f876
SF		 573static void user_ent_hash_build(void)
574{
575 const char *root = getenv("PROC_ROOT") ? : "/proc/";
576 struct dirent *d;
577 char name[1024];
578 int nameoff;
579 DIR *dir;
116ac927
RH		 580 char *pid_context;
581 char *sock_context;
582 const char *no_ctx = "unavailable";
b25bad2f 583 static int user_ent_hash_build_init;
116ac927
RH		 584
585 /* If show_users & show_proc_ctx set only do this once */
586 if (user_ent_hash_build_init != 0)
587 return;
588
589 user_ent_hash_build_init = 1;
fbc0f876 590
18f156bf 591 strlcpy(name, root, sizeof(name));
0ee9052f 592
fbc0f876 593 if (strlen(name) == 0 || name[strlen(name)-1] != '/')
aba5acdf 594 strcat(name, "/");
fbc0f876 595
aba5acdf 596 nameoff = strlen(name);
fbc0f876
SF		 597
598 dir = opendir(name);
599 if (!dir)
600 return;
aba5acdf
SH		 601
602 while ((d = readdir(dir)) != NULL) {
aba5acdf 603 struct dirent *d1;
aba5acdf 604 char process[16];
116ac927 605 char *p;
fbc0f876
SF		 606 int pid, pos;
607 DIR *dir1;
608 char crap;
aba5acdf
SH		 609
610 if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1)
611 continue;
612
116ac927
RH		 613 if (getpidcon(pid, &pid_context) != 0)
614 pid_context = strdup(no_ctx);
615
0ee9052f 616 snprintf(name + nameoff, sizeof(name) - nameoff, "%d/fd/", pid);
aba5acdf 617 pos = strlen(name);
a02371fb
PS		 618 if ((dir1 = opendir(name)) == NULL) {
619 free(pid_context);
aba5acdf 620 continue;
a02371fb 621 }
aba5acdf 622
fbc0f876 623 process[0] = '\0';
116ac927 624 p = process;
aba5acdf
SH		 625
626 while ((d1 = readdir(dir1)) != NULL) {
fbc0f876
SF		 627 const char *pattern = "socket:[";
628 unsigned int ino;
aba5acdf 629 char lnk[64];
18445b3e 630 int fd;
788731b3 631 ssize_t link_len;
116ac927 632 char tmp[1024];
aba5acdf
SH		 633
634 if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1)
635 continue;
636
0ee9052f 637 snprintf(name+pos, sizeof(name) - pos, "%d", fd);
788731b3
TJ		 638
639 link_len = readlink(name, lnk, sizeof(lnk)-1);
640 if (link_len == -1)
641 continue;
642 lnk[link_len] = '\0';
643
644 if (strncmp(lnk, pattern, strlen(pattern)))
aba5acdf
SH		 645 continue;
646
fbc0f876 647 sscanf(lnk, "socket:[%u]", &ino);
aba5acdf 648
116ac927
RH		 649 snprintf(tmp, sizeof(tmp), "%s/%d/fd/%s",
650 root, pid, d1->d_name);
651
652 if (getfilecon(tmp, &sock_context) <= 0)
653 sock_context = strdup(no_ctx);
654
655 if (*p == '\0') {
aba5acdf 656 FILE *fp;
fbc0f876 657
116ac927
RH		 658 snprintf(tmp, sizeof(tmp), "%s/%d/stat",
659 root, pid);
aba5acdf 660 if ((fp = fopen(tmp, "r")) != NULL) {
d572ed4d
PS		 661 if (fscanf(fp, "%*d (%[^)])", p) < 1)
662 ; /* ignore */
aba5acdf
SH		 663 fclose(fp);
664 }
665 }
116ac927
RH		 666 user_ent_add(ino, p, pid, fd,
667 pid_context, sock_context);
668 free(sock_context);
aba5acdf 669 }
116ac927 670 free(pid_context);
aba5acdf
SH		 671 closedir(dir1);
672 }
673 closedir(dir);
fbc0f876
SF		 674}
675
116ac927
RH		 676enum entry_types {
677 USERS,
678 PROC_CTX,
679 PROC_SOCK_CTX
680};
681
682#define ENTRY_BUF_SIZE 512
acd1e437 683static int find_entry(unsigned int ino, char **buf, int type)
fbc0f876
SF		 684{
685 struct user_ent *p;
686 int cnt = 0;
687 char *ptr;
532ca40a 688 char *new_buf;
116ac927
RH		 689 int len, new_buf_len;
690 int buf_used = 0;
691 int buf_len = 0;
fbc0f876
SF		 692
693 if (!ino)
694 return 0;
695
696 p = user_ent_hash[user_ent_hashfn(ino)];
116ac927 697 ptr = *buf = NULL;
fbc0f876
SF		 698 while (p) {
699 if (p->ino != ino)
700 goto next;
701
116ac927
RH		 702 while (1) {
703 ptr = *buf + buf_used;
704 switch (type) {
705 case USERS:
706 len = snprintf(ptr, buf_len - buf_used,
707 "(\"%s\",pid=%d,fd=%d),",
708 p->process, p->pid, p->fd);
709 break;
710 case PROC_CTX:
711 len = snprintf(ptr, buf_len - buf_used,
712 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),",
713 p->process, p->pid,
714 p->process_ctx, p->fd);
715 break;
716 case PROC_SOCK_CTX:
717 len = snprintf(ptr, buf_len - buf_used,
718 "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),",
719 p->process, p->pid,
720 p->process_ctx, p->fd,
721 p->socket_ctx);
722 break;
723 default:
724 fprintf(stderr, "ss: invalid type: %d\n", type);
725 abort();
726 }
fbc0f876 727
116ac927
RH		 728 if (len < 0 || len >= buf_len - buf_used) {
729 new_buf_len = buf_len + ENTRY_BUF_SIZE;
532ca40a 730 new_buf = realloc(*buf, new_buf_len);
116ac927
RH		 731 if (!new_buf) {
732 fprintf(stderr, "ss: failed to malloc buffer\n");
733 abort();
734 }
532ca40a 735 *buf = new_buf;
116ac927
RH		 736 buf_len = new_buf_len;
737 continue;
738 } else {
739 buf_used += len;
740 break;
741 }
742 }
fbc0f876 743 cnt++;
116ac927 744next:
fbc0f876
SF		 745 p = p->next;
746 }
116ac927
RH		 747 if (buf_used) {
748 ptr = *buf + buf_used;
fbc0f876 749 ptr[-1] = '\0';
116ac927 750 }
aba5acdf
SH		 751 return cnt;
752}
753
2e7e805d 754static unsigned long long cookie_sk_get(const uint32_t *cookie)
f1b39e1b 755{
2e7e805d 756 return (((unsigned long long)cookie[1] << 31) << 1) | cookie[0];
f1b39e1b
VK		 757}
758
f89d46ad
PS		 759static const char *sctp_sstate_name[] = {
760 [SCTP_STATE_CLOSED] = "CLOSED",
761 [SCTP_STATE_COOKIE_WAIT] = "COOKIE_WAIT",
762 [SCTP_STATE_COOKIE_ECHOED] = "COOKIE_ECHOED",
763 [SCTP_STATE_ESTABLISHED] = "ESTAB",
764 [SCTP_STATE_SHUTDOWN_PENDING] = "SHUTDOWN_PENDING",
765 [SCTP_STATE_SHUTDOWN_SENT] = "SHUTDOWN_SENT",
766 [SCTP_STATE_SHUTDOWN_RECEIVED] = "SHUTDOWN_RECEIVED",
767 [SCTP_STATE_SHUTDOWN_ACK_SENT] = "ACK_SENT",
768};
769
5caf79a0
GM		 770static const char * const stype_nameg[] = {
771 "UNKNOWN",
772 [SOCK_STREAM] = "STREAM",
773 [SOCK_DGRAM] = "DGRAM",
774 [SOCK_RDM] = "RDM",
775 [SOCK_SEQPACKET] = "SEQPACKET",
776};
777
acd1e437 778struct sockstat {
ec4d0d8a
VK		 779 struct sockstat *next;
780 unsigned int type;
89f634f9 781 uint16_t prot;
41fe6c34 782 uint16_t raw_prot;
8250bc9f
VK		 783 inet_prefix local;
784 inet_prefix remote;
785 int lport;
786 int rport;
787 int state;
788 int rq, wq;
acd1e437
SH		 789 unsigned int ino;
790 unsigned int uid;
8250bc9f
VK		 791 int refcnt;
792 unsigned int iface;
793 unsigned long long sk;
99bb68ff
VK		 794 char *name;
795 char *peer_name;
ec75249b 796 __u32 mark;
055840f2
VK		 797};
798
acd1e437 799struct dctcpstat {
055840f2
VK		 800 unsigned int ce_state;
801 unsigned int alpha;
802 unsigned int ab_ecn;
803 unsigned int ab_tot;
804 bool enabled;
805};
806
acd1e437 807struct tcpstat {
055840f2 808 struct sockstat ss;
4cbf5224
PS		 809 unsigned int timer;
810 unsigned int timeout;
8250bc9f 811 int probes;
d2055ea5 812 char cong_alg[16];
8250bc9f 813 double rto, ato, rtt, rttvar;
d1f338b3 814 int qack, ssthresh, backoff;
8250bc9f
VK		 815 double send_bps;
816 int snd_wscale;
817 int rcv_wscale;
818 int mss;
38e6dbc4
ED		 819 int rcv_mss;
820 int advmss;
3d791a32 821 unsigned int pmtu;
d1f338b3 822 unsigned int cwnd;
8250bc9f
VK		 823 unsigned int lastsnd;
824 unsigned int lastrcv;
825 unsigned int lastack;
826 double pacing_rate;
827 double pacing_rate_max;
2f579872 828 double delivery_rate;
1a4dda71
ED		 829 unsigned long long bytes_acked;
830 unsigned long long bytes_received;
ecb435ea
CG		 831 unsigned int segs_out;
832 unsigned int segs_in;
414aeec9
MKL		 833 unsigned int data_segs_out;
834 unsigned int data_segs_in;
8250bc9f
VK		 835 unsigned int unacked;
836 unsigned int retrans;
837 unsigned int retrans_total;
838 unsigned int lost;
839 unsigned int sacked;
840 unsigned int fackets;
841 unsigned int reordering;
9e99e495 842 unsigned int not_sent;
2f4d834b
ED		 843 unsigned int delivered;
844 unsigned int delivered_ce;
5eead627
ED		 845 unsigned int dsack_dups;
846 unsigned int reord_seen;
8250bc9f 847 double rcv_rtt;
9e99e495 848 double min_rtt;
8250bc9f 849 int rcv_space;
00ac78d3 850 unsigned int rcv_ssthresh;
b6c7fc61
YC		 851 unsigned long long busy_time;
852 unsigned long long rwnd_limited;
853 unsigned long long sndbuf_limited;
5eead627
ED		 854 unsigned long long bytes_sent;
855 unsigned long long bytes_retrans;
8250bc9f
VK		 856 bool has_ts_opt;
857 bool has_sack_opt;
858 bool has_ecn_opt;
859 bool has_ecnseen_opt;
860 bool has_fastopen_opt;
861 bool has_wscale_opt;
2f579872 862 bool app_limited;
8250bc9f 863 struct dctcpstat *dctcp;
2f0f9aef 864 struct tcp_bbr_info *bbr_info;
aba5acdf
SH		 865};
866
f89d46ad
PS		 867/* SCTP assocs share the same inode number with their parent endpoint. So if we
868 * have seen the inode number before, it must be an assoc instead of the next
869 * endpoint. */
870static bool is_sctp_assoc(struct sockstat *s, const char *sock_name)
871{
872 if (strcmp(sock_name, "sctp"))
873 return false;
874 if (!sctp_ino || sctp_ino != s->ino)
875 return false;
876 return true;
877}
878
be7e4d20
PS		 879static const char *unix_netid_name(int type)
880{
881 switch (type) {
882 case SOCK_STREAM:
883 return "u_str";
884 case SOCK_SEQPACKET:
885 return "u_seq";
886 case SOCK_DGRAM:
887 default:
888 return "u_dgr";
889 }
890}
891
892static const char *proto_name(int protocol)
2d791bc8 893{
be7e4d20
PS		 894 switch (protocol) {
895 case 0:
896 return "raw";
897 case IPPROTO_UDP:
898 return "udp";
899 case IPPROTO_TCP:
900 return "tcp";
901 case IPPROTO_SCTP:
902 return "sctp";
903 case IPPROTO_DCCP:
904 return "dccp";
572e8936
PS		 905 case IPPROTO_ICMPV6:
906 return "icmp6";
be7e4d20
PS		 907 }
908
909 return "???";
910}
911
c759116a
SH		 912static const char *vsock_netid_name(int type)
913{
914 switch (type) {
915 case SOCK_STREAM:
916 return "v_str";
917 case SOCK_DGRAM:
918 return "v_dgr";
919 default:
920 return "???";
921 }
922}
923
5caf79a0
GM		 924static const char *tipc_netid_name(int type)
925{
926 switch (type) {
927 case SOCK_STREAM:
928 return "ti_st";
929 case SOCK_DGRAM:
930 return "ti_dg";
931 case SOCK_RDM:
932 return "ti_rd";
933 case SOCK_SEQPACKET:
934 return "ti_sq";
935 default:
936 return "???";
937 }
938}
939
691bd854
SB		 940/* Allocate and initialize a new buffer chunk */
941static struct buf_chunk *buf_chunk_new(void)
942{
943 struct buf_chunk *new = malloc(BUF_CHUNK);
944
945 if (!new)
946 abort();
947
948 new->next = NULL;
949
950 /* This is also the last block */
951 buffer.tail = new;
952
953 /* Next token will be stored at the beginning of chunk data area, and
954 * its initial length is zero.
955 */
956 buffer.cur = (struct buf_token *)new->data;
957 buffer.cur->len = 0;
958
959 new->end = buffer.cur->data;
960
aa5bd6a2
SB		 961 buffer.chunks++;
962
691bd854
SB		 963 return new;
964}
965
966/* Return available tail room in given chunk */
967static int buf_chunk_avail(struct buf_chunk *chunk)
968{
969 return BUF_CHUNK - offsetof(struct buf_chunk, data) -
970 (chunk->end - chunk->data);
971}
972
973/* Update end pointer and token length, link new chunk if we hit the end of the
974 * current one. Return -EAGAIN if we got a new chunk, caller has to print again.
975 */
976static int buf_update(int len)
977{
978 struct buf_chunk *chunk = buffer.tail;
979 struct buf_token *t = buffer.cur;
980
981 /* Claim success if new content fits in the current chunk, and anyway
982 * if this is the first token in the chunk: in the latter case,
983 * allocating a new chunk won't help, so we'll just cut the output.
984 */
985 if ((len < buf_chunk_avail(chunk) && len != -1 /* glibc < 2.0.6 */) ||
986 t == (struct buf_token *)chunk->data) {
987 len = min(len, buf_chunk_avail(chunk));
988
989 /* Total field length can't exceed 2^16 bytes, cut as needed */
990 len = min(len, USHRT_MAX - t->len);
991
992 chunk->end += len;
993 t->len += len;
994 return 0;
995 }
996
997 /* Content truncated, time to allocate more */
998 chunk->next = buf_chunk_new();
999
1000 /* Copy current token over to new chunk, including length descriptor */
1001 memcpy(chunk->next->data, t, sizeof(t->len) + t->len);
1002 chunk->next->end += t->len;
1003
1004 /* Discard partially written field in old chunk */
1005 chunk->end -= t->len + sizeof(t->len);
1006
1007 return -EAGAIN;
1008}
1009
1010/* Append content to buffer as part of the current field */
5d5586b0 1011__attribute__((format(printf, 1, 2)))
90351722
SB		 1012static void out(const char *fmt, ...)
1013{
59f46b7b 1014 struct column *f = current_field;
90351722 1015 va_list args;
691bd854
SB		 1016 char *pos;
1017 int len;
1018
87b1a7ae 1019 if (f->disabled)
691bd854
SB		 1020 return;
1021
1022 if (!buffer.head)
1023 buffer.head = buf_chunk_new();
1024
1025again: /* Append to buffer: if we have a new chunk, print again */
90351722 1026
691bd854 1027 pos = buffer.cur->data + buffer.cur->len;
90351722 1028 va_start(args, fmt);
691bd854
SB		 1029
1030 /* Limit to tail room. If we hit the limit, buf_update() will tell us */
1031 len = vsnprintf(pos, buf_chunk_avail(buffer.tail), fmt, args);
90351722 1032 va_end(args);
691bd854
SB		 1033
1034 if (buf_update(len))
1035 goto again;
90351722
SB		 1036}
1037
691bd854 1038static int print_left_spacing(struct column *f, int stored, int printed)
59f46b7b
SB		 1039{
1040 int s;
1041
87b1a7ae 1042 if (!f->width || f->align == ALIGN_LEFT)
59f46b7b
SB		 1043 return 0;
1044
691bd854 1045 s = f->width - stored - printed;
59f46b7b
SB		 1046 if (f->align == ALIGN_CENTER)
1047 /* If count of total spacing is odd, shift right by one */
1048 s = (s + 1) / 2;
1049
1050 if (s > 0)
1051 return printf("%*c", s, ' ');
1052
1053 return 0;
1054}
1055
691bd854 1056static void print_right_spacing(struct column *f, int printed)
59f46b7b
SB		 1057{
1058 int s;
1059
87b1a7ae 1060 if (!f->width || f->align == ALIGN_RIGHT)
59f46b7b
SB		 1061 return;
1062
691bd854 1063 s = f->width - printed;
59f46b7b
SB		 1064 if (f->align == ALIGN_CENTER)
1065 s /= 2;
1066
1067 if (s > 0)
1068 printf("%*c", s, ' ');
1069}
1070
691bd854 1071/* Done with field: update buffer pointer, start new token after current one */
59f46b7b
SB		 1072static void field_flush(struct column *f)
1073{
192be8fc
AQ		 1074 struct buf_chunk *chunk;
1075 unsigned int pad;
691bd854 1076
87b1a7ae 1077 if (f->disabled)
59f46b7b
SB		 1078 return;
1079
192be8fc
AQ		 1080 chunk = buffer.tail;
1081 pad = buffer.cur->len % 2;
1082
87b1a7ae
SB		 1083 if (buffer.cur->len > f->max_len)
1084 f->max_len = buffer.cur->len;
1085
691bd854
SB		 1086 /* We need a new chunk if we can't store the next length descriptor.
1087 * Mind the gap between end of previous token and next aligned position
1088 * for length descriptor.
1089 */
1090 if (buf_chunk_avail(chunk) - pad < sizeof(buffer.cur->len)) {
1091 chunk->end += pad;
1092 chunk->next = buf_chunk_new();
1093 return;
1094 }
59f46b7b 1095
691bd854
SB		 1096 buffer.cur = (struct buf_token *)(buffer.cur->data +
1097 LEN_ALIGN(buffer.cur->len));
1098 buffer.cur->len = 0;
1099 buffer.tail->end = buffer.cur->data;
59f46b7b
SB		 1100}
1101
1102static int field_is_last(struct column *f)
1103{
1104 return f - columns == COL_MAX - 1;
1105}
1106
691bd854
SB		 1107/* Get the next available token in the buffer starting from the current token */
1108static struct buf_token *buf_token_next(struct buf_token *cur)
1109{
1110 struct buf_chunk *chunk = buffer.tail;
1111
1112 /* If we reached the end of chunk contents, get token from next chunk */
1113 if (cur->data + LEN_ALIGN(cur->len) == chunk->end) {
1114 buffer.tail = chunk = chunk->next;
1115 return chunk ? (struct buf_token *)chunk->data : NULL;
1116 }
1117
1118 return (struct buf_token *)(cur->data + LEN_ALIGN(cur->len));
1119}
1120
1121/* Free up all allocated buffer chunks */
1122static void buf_free_all(void)
1123{
1124 struct buf_chunk *tmp;
1125
1126 for (buffer.tail = buffer.head; buffer.tail; ) {
1127 tmp = buffer.tail;
1128 buffer.tail = buffer.tail->next;
1129 free(tmp);
1130 }
1131 buffer.head = NULL;
aa5bd6a2 1132 buffer.chunks = 0;
691bd854
SB		 1133}
1134
32ea3d54
SB		 1135/* Get current screen width, default to 80 columns if TIOCGWINSZ fails */
1136static int render_screen_width(void)
1137{
1138 int width = 80;
1139
1140 if (isatty(STDOUT_FILENO)) {
1141 struct winsize w;
1142
1143 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) {
1144 if (w.ws_col > 0)
1145 width = w.ws_col;
1146 }
1147 }
1148
1149 return width;
1150}
1151
87b1a7ae
SB		 1152/* Calculate column width from contents length. If columns don't fit on one
1153 * line, break them into the least possible amount of lines and keep them
1154 * aligned across lines. Available screen space is equally spread between fields
1155 * as additional spacing.
1156 */
32ea3d54 1157static void render_calc_width(void)
87b1a7ae 1158{
32ea3d54 1159 int screen_width = render_screen_width();
87b1a7ae 1160 struct column *c, *eol = columns - 1;
32ea3d54 1161 int first, len = 0, linecols = 0;
87b1a7ae
SB		 1162
1163 /* First pass: set width for each column to measured content length */
1164 for (first = 1, c = columns; c - columns < COL_MAX; c++) {
1165 if (c->disabled)
1166 continue;
1167
1168 if (!first && c->max_len)
1169 c->width = c->max_len + strlen(c->ldelim);
1170 else
1171 c->width = c->max_len;
1172
1173 /* But don't exceed screen size. If we exceed the screen size
1174 * for even a single field, it will just start on a line of its
1175 * own and then naturally wrap.
1176 */
1177 c->width = min(c->width, screen_width);
1178
1179 if (c->width)
1180 first = 0;
1181 }
1182
1183 /* Second pass: find out newlines and distribute available spacing */
1184 for (c = columns; c - columns < COL_MAX; c++) {
1185 int pad, spacing, rem, last;
1186 struct column *tmp;
1187
1188 if (!c->width)
1189 continue;
1190
1191 linecols++;
1192 len += c->width;
1193
1194 for (last = 1, tmp = c + 1; tmp - columns < COL_MAX; tmp++) {
1195 if (tmp->width) {
1196 last = 0;
1197 break;
1198 }
1199 }
1200
1201 if (!last && len < screen_width) {
1202 /* Columns fit on screen so far, nothing to do yet */
1203 continue;
1204 }
1205
1206 if (len == screen_width) {
1207 /* Exact fit, just start with new line */
1208 goto newline;
1209 }
1210
1211 if (len > screen_width) {
1212 /* Screen width exceeded: go back one column */
1213 len -= c->width;
1214 c--;
1215 linecols--;
1216 }
1217
1218 /* Distribute remaining space to columns on this line */
1219 pad = screen_width - len;
1220 spacing = pad / linecols;
1221 rem = pad % linecols;
1222 for (tmp = c; tmp > eol; tmp--) {
1223 if (!tmp->width)
1224 continue;
1225
1226 tmp->width += spacing;
1227 if (rem) {
1228 tmp->width++;
1229 rem--;
1230 }
1231 }
1232
1233newline:
1234 /* Line break: reset line counters, mark end-of-line */
1235 eol = c;
1236 len = 0;
1237 linecols = 0;
1238 }
1239}
1240
691bd854 1241/* Render buffered output with spacing and delimiters, then free up buffers */
32ea3d54 1242static void render(void)
691bd854 1243{
eb8559ef 1244 struct buf_token *token;
87b1a7ae 1245 int printed, line_started = 0;
691bd854
SB		 1246 struct column *f;
1247
eb8559ef
JPB		 1248 if (!buffer.head)
1249 return;
1250
1251 token = (struct buf_token *)buffer.head->data;
1252
691bd854
SB		 1253 /* Ensure end alignment of last token, it wasn't necessarily flushed */
1254 buffer.tail->end += buffer.cur->len % 2;
1255
32ea3d54 1256 render_calc_width();
87b1a7ae 1257
691bd854
SB		 1258 /* Rewind and replay */
1259 buffer.tail = buffer.head;
1260
1261 f = columns;
1262 while (!f->width)
1263 f++;
1264
1265 while (token) {
1266 /* Print left delimiter only if we already started a line */
1267 if (line_started++)
00240899 1268 printed = printf("%s", f->ldelim);
691bd854
SB		 1269 else
1270 printed = 0;
1271
1272 /* Print field content from token data with spacing */
1273 printed += print_left_spacing(f, token->len, printed);
1274 printed += fwrite(token->data, 1, token->len, stdout);
1275 print_right_spacing(f, printed);
1276
691bd854
SB		 1277 /* Go to next non-empty field, deal with end-of-line */
1278 do {
1279 if (field_is_last(f)) {
87b1a7ae 1280 printf("\n");
691bd854
SB		 1281 f = columns;
1282 line_started = 0;
1283 } else {
1284 f++;
1285 }
87b1a7ae 1286 } while (f->disabled);
691bd854
SB		 1287
1288 token = buf_token_next(token);
1289 }
1290
1291 buf_free_all();
32ea3d54 1292 current_field = columns;
691bd854
SB		 1293}
1294
aa5bd6a2
SB		 1295/* Move to next field, and render buffer if we reached the maximum number of
1296 * chunks, at the last field in a line.
1297 */
1298static void field_next(void)
1299{
1300 if (field_is_last(current_field) && buffer.chunks >= BUF_CHUNKS_MAX) {
1301 render();
1302 return;
1303 }
1304
1305 field_flush(current_field);
1306 if (field_is_last(current_field))
1307 current_field = columns;
1308 else
1309 current_field++;
1310}
1311
1312/* Walk through fields and flush them until we reach the desired one */
1313static void field_set(enum col_id id)
1314{
1315 while (id != current_field - columns)
1316 field_next();
1317}
1318
1319/* Print header for all non-empty columns */
1320static void print_header(void)
1321{
1322 while (!field_is_last(current_field)) {
1323 if (!current_field->disabled)
1324 out("%s", current_field->header);
1325 field_next();
1326 }
1327}
1328
be7e4d20
PS		 1329static void sock_state_print(struct sockstat *s)
1330{
1331 const char *sock_name;
1882c0db
PS		 1332 static const char * const sstate_name[] = {
1333 "UNKNOWN",
1334 [SS_ESTABLISHED] = "ESTAB",
1335 [SS_SYN_SENT] = "SYN-SENT",
1336 [SS_SYN_RECV] = "SYN-RECV",
1337 [SS_FIN_WAIT1] = "FIN-WAIT-1",
1338 [SS_FIN_WAIT2] = "FIN-WAIT-2",
1339 [SS_TIME_WAIT] = "TIME-WAIT",
1340 [SS_CLOSE] = "UNCONN",
1341 [SS_CLOSE_WAIT] = "CLOSE-WAIT",
1342 [SS_LAST_ACK] = "LAST-ACK",
1343 [SS_LISTEN] = "LISTEN",
1344 [SS_CLOSING] = "CLOSING",
1345 };
be7e4d20
PS		 1346
1347 switch (s->local.family) {
1348 case AF_UNIX:
1349 sock_name = unix_netid_name(s->type);
1350 break;
1351 case AF_INET:
1352 case AF_INET6:
1353 sock_name = proto_name(s->type);
1354 break;
1355 case AF_PACKET:
1356 sock_name = s->type == SOCK_RAW ? "p_raw" : "p_dgr";
1357 break;
1358 case AF_NETLINK:
1359 sock_name = "nl";
1360 break;
5caf79a0
GM		 1361 case AF_TIPC:
1362 sock_name = tipc_netid_name(s->type);
1363 break;
c759116a
SH		 1364 case AF_VSOCK:
1365 sock_name = vsock_netid_name(s->type);
1366 break;
2abc3d76
BT		 1367 case AF_XDP:
1368 sock_name = "xdp";
1369 break;
be7e4d20
PS		 1370 default:
1371 sock_name = "unknown";
1372 }
1373
59f46b7b
SB		 1374 if (is_sctp_assoc(s, sock_name)) {
1375 field_set(COL_STATE); /* Empty Netid field */
1376 out("`- %s", sctp_sstate_name[s->state]);
1377 } else {
1378 field_set(COL_NETID);
1379 out("%s", sock_name);
1380 field_set(COL_STATE);
1381 out("%s", sstate_name[s->state]);
f89d46ad 1382 }
2d791bc8 1383
59f46b7b
SB		 1384 field_set(COL_RECVQ);
1385 out("%-6d", s->rq);
1386 field_set(COL_SENDQ);
1387 out("%-6d", s->wq);
1388 field_set(COL_ADDR);
2d791bc8
VK		 1389}
1390
f1b39e1b
VK		 1391static void sock_details_print(struct sockstat *s)
1392{
1393 if (s->uid)
90351722 1394 out(" uid:%u", s->uid);
f1b39e1b 1395
90351722
SB		 1396 out(" ino:%u", s->ino);
1397 out(" sk:%llx", s->sk);
ec75249b
LC		 1398
1399 if (s->mark)
90351722 1400 out(" fwmark:0x%x", s->mark);
f1b39e1b
VK		 1401}
1402
b217df10
VK		 1403static void sock_addr_print(const char *addr, char *delim, const char *port,
1404 const char *ifname)
1405{
59f46b7b
SB		 1406 if (ifname)
1407 out("%s" "%%" "%s%s", addr, ifname, delim);
1408 else
1409 out("%s%s", addr, delim);
1410
1411 field_next();
1412 out("%s", port);
1413 field_next();
b217df10
VK		 1414}
1415
4cbf5224 1416static const char *print_ms_timer(unsigned int timeout)
aba5acdf
SH		 1417{
1418 static char buf[64];
1419 int secs, msecs, minutes;
acd1e437 1420
aba5acdf
SH		 1421 secs = timeout/1000;
1422 minutes = secs/60;
1423 secs = secs%60;
1424 msecs = timeout%1000;
1425 buf[0] = 0;
1426 if (minutes) {
1427 msecs = 0;
1428 snprintf(buf, sizeof(buf)-16, "%dmin", minutes);
1429 if (minutes > 9)
1430 secs = 0;
1431 }
1432 if (secs) {
1433 if (secs > 9)
1434 msecs = 0;
1435 sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec");
1436 }
1437 if (msecs)
1438 sprintf(buf+strlen(buf), "%03dms", msecs);
1439 return buf;
e7113c61 1440}
aba5acdf 1441
22588a0e 1442struct scache {
aba5acdf
SH		 1443 struct scache *next;
1444 int port;
1445 char *name;
1446 const char *proto;
1447};
1448
3f7bd0fd 1449static struct scache *rlist;
aba5acdf 1450
d1f28cf1 1451static void init_service_resolver(void)
aba5acdf
SH		 1452{
1453 char buf[128];
1454 FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
596307ea
PS		 1455
1456 if (!fp)
1457 return;
1458
1459 if (!fgets(buf, sizeof(buf), fp)) {
2bcc3c16 1460 pclose(fp);
596307ea
PS		 1461 return;
1462 }
1463 while (fgets(buf, sizeof(buf), fp) != NULL) {
1464 unsigned int progn, port;
1465 char proto[128], prog[128] = "rpc.";
1466 struct scache *c;
1467
1468 if (sscanf(buf, "%u %*d %s %u %s",
acd1e437 1469 &progn, proto, &port, prog+4) != 4)
596307ea
PS		 1470 continue;
1471
1472 if (!(c = malloc(sizeof(*c))))
1473 continue;
1474
1475 c->port = port;
1476 c->name = strdup(prog);
1477 if (strcmp(proto, TCP_PROTO) == 0)
1478 c->proto = TCP_PROTO;
1479 else if (strcmp(proto, UDP_PROTO) == 0)
1480 c->proto = UDP_PROTO;
f89d46ad
PS		 1481 else if (strcmp(proto, SCTP_PROTO) == 0)
1482 c->proto = SCTP_PROTO;
596307ea
PS		 1483 else
1484 c->proto = NULL;
1485 c->next = rlist;
1486 rlist = c;
aba5acdf 1487 }
596307ea 1488 pclose(fp);
aba5acdf
SH		 1489}
1490
ab61159a
SH		 1491/* Even do not try default linux ephemeral port ranges:
1492 * default /etc/services contains so much of useless crap
1493 * wouldbe "allocated" to this area that resolution
1494 * is really harmful. I shrug each time when seeing
1495 * "socks" or "cfinger" in dumps.
1496 */
1497static int is_ephemeral(int port)
1498{
acd1e437 1499 static int min = 0, max;
c29d3792
PS		 1500
1501 if (!min) {
ab01dbbb 1502 FILE *f = ephemeral_ports_open();
acd1e437 1503
c29d3792
PS		 1504 if (!f || fscanf(f, "%d %d", &min, &max) < 2) {
1505 min = 1024;
1506 max = 4999;
ab61159a 1507 }
c29d3792
PS		 1508 if (f)
1509 fclose(f);
ab61159a 1510 }
c29d3792 1511 return port >= min && port <= max;
ab61159a
SH		 1512}
1513
1514
d1f28cf1 1515static const char *__resolve_service(int port)
aba5acdf
SH		 1516{
1517 struct scache *c;
1518
1519 for (c = rlist; c; c = c->next) {
1520 if (c->port == port && c->proto == dg_proto)
1521 return c->name;
1522 }
1523
ab61159a 1524 if (!is_ephemeral(port)) {
aba5acdf
SH		 1525 static int notfirst;
1526 struct servent *se;
acd1e437 1527
aba5acdf
SH		 1528 if (!notfirst) {
1529 setservent(1);
1530 notfirst = 1;
ae665a52 1531 }
aba5acdf
SH		 1532 se = getservbyport(htons(port), dg_proto);
1533 if (se)
1534 return se->s_name;
1535 }
1536
1537 return NULL;
1538}
1539
22588a0e
ED		 1540#define SCACHE_BUCKETS 1024
1541static struct scache *cache_htab[SCACHE_BUCKETS];
aba5acdf 1542
d1f28cf1 1543static const char *resolve_service(int port)
aba5acdf
SH		 1544{
1545 static char buf[128];
22588a0e
ED		 1546 struct scache *c;
1547 const char *res;
1548 int hash;
aba5acdf
SH		 1549
1550 if (port == 0) {
1551 buf[0] = '*';
1552 buf[1] = 0;
1553 return buf;
1554 }
1555
22588a0e
ED		 1556 if (!resolve_services)
1557 goto do_numeric;
aba5acdf 1558
22588a0e
ED		 1559 if (dg_proto == RAW_PROTO)
1560 return inet_proto_n2a(port, buf, sizeof(buf));
1561
1562
1563 hash = (port^(((unsigned long)dg_proto)>>2)) % SCACHE_BUCKETS;
1564
1565 for (c = cache_htab[hash]; c; c = c->next) {
1566 if (c->port == port && c->proto == dg_proto)
1567 goto do_cache;
aba5acdf
SH		 1568 }
1569
22588a0e
ED		 1570 c = malloc(sizeof(*c));
1571 if (!c)
1572 goto do_numeric;
1573 res = __resolve_service(port);
1574 c->port = port;
1575 c->name = res ? strdup(res) : NULL;
1576 c->proto = dg_proto;
1577 c->next = cache_htab[hash];
1578 cache_htab[hash] = c;
1579
1580do_cache:
1581 if (c->name)
1582 return c->name;
1583
1584do_numeric:
aba5acdf
SH		 1585 sprintf(buf, "%u", port);
1586 return buf;
1587}
1588
1267c0b9
PS		 1589static void inet_addr_print(const inet_prefix *a, int port,
1590 unsigned int ifindex, bool v6only)
aba5acdf
SH		 1591{
1592 char buf[1024];
1593 const char *ap = buf;
b217df10 1594 const char *ifname = NULL;
aba5acdf
SH		 1595
1596 if (a->family == AF_INET) {
1267c0b9 1597 ap = format_host(AF_INET, 4, a->data);
aba5acdf 1598 } else {
1267c0b9
PS		 1599 if (!v6only &&
1600 !memcmp(a->data, &in6addr_any, sizeof(in6addr_any))) {
aba9c23a
SH		 1601 buf[0] = '*';
1602 buf[1] = 0;
1603 } else {
1604 ap = format_host(a->family, 16, a->data);
1605
1606 /* Numeric IPv6 addresses should be bracketed */
1607 if (strchr(ap, ':')) {
1608 snprintf(buf, sizeof(buf),
1609 "[%s]", ap);
1610 ap = buf;
1611 }
aba9c23a 1612 }
aba5acdf 1613 }
b217df10 1614
59f46b7b
SB		 1615 if (ifindex)
1616 ifname = ll_index_to_name(ifindex);
7c8a3cfb 1617
59f46b7b 1618 sock_addr_print(ap, ":", resolve_service(port), ifname);
aba5acdf
SH		 1619}
1620
acd1e437 1621struct aafilter {
aba5acdf
SH		 1622 inet_prefix addr;
1623 int port;
2d293212 1624 unsigned int iface;
ec75249b
LC		 1625 __u32 mark;
1626 __u32 mask;
aba5acdf
SH		 1627 struct aafilter *next;
1628};
1629
d1f28cf1
SH		 1630static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p,
1631 int plen)
aba5acdf
SH		 1632{
1633 if (!inet_addr_match(a, p, plen))
1634 return 0;
7d105b56 1635
aba5acdf
SH		 1636 /* Cursed "v4 mapped" addresses: v4 mapped socket matches
1637 * pure IPv4 rule, but v4-mapped rule selects only v4-mapped
1638 * sockets. Fair? */
1639 if (p->family == AF_INET && a->family == AF_INET6) {
1640 if (a->data[0] == 0 && a->data[1] == 0 &&
1641 a->data[2] == htonl(0xffff)) {
1642 inet_prefix tmp = *a;
acd1e437 1643
aba5acdf
SH		 1644 tmp.data[0] = a->data[3];
1645 return inet_addr_match(&tmp, p, plen);
1646 }
1647 }
1648 return 1;
1649}
1650
d1f28cf1 1651static int unix_match(const inet_prefix *a, const inet_prefix *p)
aba5acdf 1652{
99bb68ff 1653 char *addr, *pattern;
acd1e437 1654
99bb68ff
VK		 1655 memcpy(&addr, a->data, sizeof(addr));
1656 memcpy(&pattern, p->data, sizeof(pattern));
aba5acdf
SH		 1657 if (pattern == NULL)
1658 return 1;
1659 if (addr == NULL)
1660 addr = "";
1661 return !fnmatch(pattern, addr, 0);
1662}
1663
055840f2 1664static int run_ssfilter(struct ssfilter *f, struct sockstat *s)
aba5acdf
SH		 1665{
1666 switch (f->type) {
1667 case SSF_S_AUTO:
1668 {
aba5acdf 1669 if (s->local.family == AF_UNIX) {
99bb68ff 1670 char *p;
acd1e437 1671
99bb68ff 1672 memcpy(&p, s->local.data, sizeof(p));
aba5acdf 1673 return p == NULL || (p[0] == '@' && strlen(p) == 6 &&
ae665a52 1674 strspn(p+1, "0123456789abcdef") == 5);
aba5acdf
SH		 1675 }
1676 if (s->local.family == AF_PACKET)
bbd303d1 1677 return s->lport == 0 && s->local.data[0] == 0;
aba5acdf
SH		 1678 if (s->local.family == AF_NETLINK)
1679 return s->lport < 0;
c759116a
SH		 1680 if (s->local.family == AF_VSOCK)
1681 return s->lport > 1023;
aba5acdf 1682
c29d3792 1683 return is_ephemeral(s->lport);
aba5acdf
SH		 1684 }
1685 case SSF_DCOND:
1686 {
acd1e437
SH		 1687 struct aafilter *a = (void *)f->pred;
1688
aba5acdf
SH		 1689 if (a->addr.family == AF_UNIX)
1690 return unix_match(&s->remote, &a->addr);
1691 if (a->port != -1 && a->port != s->rport)
1692 return 0;
1693 if (a->addr.bitlen) {
1694 do {
1695 if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen))
1696 return 1;
1697 } while ((a = a->next) != NULL);
1698 return 0;
1699 }
1700 return 1;
1701 }
1702 case SSF_SCOND:
1703 {
acd1e437
SH		 1704 struct aafilter *a = (void *)f->pred;
1705
aba5acdf
SH		 1706 if (a->addr.family == AF_UNIX)
1707 return unix_match(&s->local, &a->addr);
1708 if (a->port != -1 && a->port != s->lport)
1709 return 0;
1710 if (a->addr.bitlen) {
1711 do {
1712 if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen))
1713 return 1;
ae665a52 1714 } while ((a = a->next) != NULL);
aba5acdf
SH		 1715 return 0;
1716 }
1717 return 1;
1718 }
1719 case SSF_D_GE:
1720 {
acd1e437
SH		 1721 struct aafilter *a = (void *)f->pred;
1722
aba5acdf
SH		 1723 return s->rport >= a->port;
1724 }
1725 case SSF_D_LE:
1726 {
acd1e437
SH		 1727 struct aafilter *a = (void *)f->pred;
1728
aba5acdf
SH		 1729 return s->rport <= a->port;
1730 }
1731 case SSF_S_GE:
1732 {
acd1e437
SH		 1733 struct aafilter *a = (void *)f->pred;
1734
aba5acdf
SH		 1735 return s->lport >= a->port;
1736 }
1737 case SSF_S_LE:
1738 {
acd1e437
SH		 1739 struct aafilter *a = (void *)f->pred;
1740
aba5acdf
SH		 1741 return s->lport <= a->port;
1742 }
2d293212
DA		 1743 case SSF_DEVCOND:
1744 {
1745 struct aafilter *a = (void *)f->pred;
aba5acdf 1746
2d293212 1747 return s->iface == a->iface;
ec75249b
LC		 1748 }
1749 case SSF_MARKMASK:
1750 {
1751 struct aafilter *a = (void *)f->pred;
1752
1753 return (s->mark & a->mask) == a->mark;
2d293212 1754 }
aba5acdf
SH		 1755 /* Yup. It is recursion. Sorry. */
1756 case SSF_AND:
1757 return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s);
1758 case SSF_OR:
1759 return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s);
1760 case SSF_NOT:
1761 return !run_ssfilter(f->pred, s);
1762 default:
1763 abort();
1764 }
1765}
1766
ae665a52 1767/* Relocate external jumps by reloc. */
b4b0b7d5 1768static void ssfilter_patch(char *a, int len, int reloc)
aba5acdf
SH		 1769{
1770 while (len > 0) {
acd1e437
SH		 1771 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)a;
1772
aba5acdf
SH		 1773 if (op->no == len+4)
1774 op->no += reloc;
1775 len -= op->yes;
1776 a += op->yes;
1777 }
1778 if (len < 0)
1779 abort();
1780}
1781
b4b0b7d5 1782static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
aba5acdf
SH		 1783{
1784 switch (f->type) {
1785 case SSF_S_AUTO:
1786 {
acd1e437
SH		 1787 if (!(*bytecode = malloc(4))) abort();
1788 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
df39de8d 1789 return 4;
aba5acdf
SH		 1790 }
1791 case SSF_DCOND:
1792 case SSF_SCOND:
1793 {
acd1e437 1794 struct aafilter *a = (void *)f->pred;
aba5acdf
SH		 1795 struct aafilter *b;
1796 char *ptr;
351efcde 1797 int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND);
aba5acdf
SH		 1798 int len = 0;
1799
acd1e437 1800 for (b = a; b; b = b->next) {
351efcde 1801 len += 4 + sizeof(struct inet_diag_hostcond);
aba5acdf
SH		 1802 if (a->addr.family == AF_INET6)
1803 len += 16;
1804 else
1805 len += 4;
1806 if (b->next)
1807 len += 4;
1808 }
1809 if (!(ptr = malloc(len))) abort();
1810 *bytecode = ptr;
acd1e437 1811 for (b = a; b; b = b->next) {
351efcde 1812 struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr;
aba5acdf 1813 int alen = (a->addr.family == AF_INET6 ? 16 : 4);
351efcde 1814 int oplen = alen + 4 + sizeof(struct inet_diag_hostcond);
acd1e437 1815 struct inet_diag_hostcond *cond = (struct inet_diag_hostcond *)(ptr+4);
aba5acdf 1816
351efcde 1817 *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 };
aba5acdf
SH		 1818 cond->family = a->addr.family;
1819 cond->port = a->port;
1820 cond->prefix_len = a->addr.bitlen;
1821 memcpy(cond->addr, a->addr.data, alen);
1822 ptr += oplen;
1823 if (b->next) {
351efcde
SH		 1824 op = (struct inet_diag_bc_op *)ptr;
1825 *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)};
aba5acdf
SH		 1826 ptr += 4;
1827 }
1828 }
1829 return ptr - *bytecode;
1830 }
1831 case SSF_D_GE:
1832 {
acd1e437
SH		 1833 struct aafilter *x = (void *)f->pred;
1834
1835 if (!(*bytecode = malloc(8))) abort();
1836 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 };
1837 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1838 return 8;
1839 }
1840 case SSF_D_LE:
1841 {
acd1e437
SH		 1842 struct aafilter *x = (void *)f->pred;
1843
1844 if (!(*bytecode = malloc(8))) abort();
1845 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 };
1846 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1847 return 8;
1848 }
1849 case SSF_S_GE:
1850 {
acd1e437
SH		 1851 struct aafilter *x = (void *)f->pred;
1852
1853 if (!(*bytecode = malloc(8))) abort();
1854 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 };
1855 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1856 return 8;
1857 }
1858 case SSF_S_LE:
1859 {
acd1e437
SH		 1860 struct aafilter *x = (void *)f->pred;
1861
1862 if (!(*bytecode = malloc(8))) abort();
1863 ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 };
1864 ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
aba5acdf
SH		 1865 return 8;
1866 }
1867
1868 case SSF_AND:
1869 {
376fb868 1870 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1871 int l1, l2;
acd1e437 1872
aba5acdf
SH		 1873 l1 = ssfilter_bytecompile(f->pred, &a1);
1874 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1875 if (!l1 || !l2) {
1876 free(a1);
1877 free(a2);
1878 return 0;
1879 }
aba5acdf
SH		 1880 if (!(a = malloc(l1+l2))) abort();
1881 memcpy(a, a1, l1);
1882 memcpy(a+l1, a2, l2);
1883 free(a1); free(a2);
1884 ssfilter_patch(a, l1, l2);
1885 *bytecode = a;
1886 return l1+l2;
1887 }
1888 case SSF_OR:
1889 {
376fb868 1890 char *a1 = NULL, *a2 = NULL, *a;
2a4fa1c3 1891 int l1, l2;
acd1e437 1892
aba5acdf
SH		 1893 l1 = ssfilter_bytecompile(f->pred, &a1);
1894 l2 = ssfilter_bytecompile(f->post, &a2);
376fb868
DA		 1895 if (!l1 || !l2) {
1896 free(a1);
1897 free(a2);
1898 return 0;
1899 }
aba5acdf
SH		 1900 if (!(a = malloc(l1+l2+4))) abort();
1901 memcpy(a, a1, l1);
1902 memcpy(a+l1+4, a2, l2);
1903 free(a1); free(a2);
acd1e437 1904 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 };
aba5acdf
SH		 1905 *bytecode = a;
1906 return l1+l2+4;
1907 }
1908 case SSF_NOT:
1909 {
376fb868 1910 char *a1 = NULL, *a;
2a4fa1c3 1911 int l1;
acd1e437 1912
aba5acdf 1913 l1 = ssfilter_bytecompile(f->pred, &a1);
376fb868
DA		 1914 if (!l1) {
1915 free(a1);
1916 return 0;
1917 }
aba5acdf
SH		 1918 if (!(a = malloc(l1+4))) abort();
1919 memcpy(a, a1, l1);
1920 free(a1);
acd1e437 1921 *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 };
aba5acdf
SH		 1922 *bytecode = a;
1923 return l1+4;
2d293212
DA		 1924 }
1925 case SSF_DEVCOND:
1926 {
1927 /* bytecompile for SSF_DEVCOND not supported yet */
1928 return 0;
ec75249b
LC		 1929 }
1930 case SSF_MARKMASK:
1931 {
1932 struct aafilter *a = (void *)f->pred;
1933 struct instr {
1934 struct inet_diag_bc_op op;
1935 struct inet_diag_markcond cond;
1936 };
1937 int inslen = sizeof(struct instr);
1938
1939 if (!(*bytecode = malloc(inslen))) abort();
1940 ((struct instr *)*bytecode)[0] = (struct instr) {
1941 { INET_DIAG_BC_MARK_COND, inslen, inslen + 4 },
1942 { a->mark, a->mask},
1943 };
1944
1945 return inslen;
aba5acdf
SH		 1946 }
1947 default:
1948 abort();
1949 }
1950}
1951
b4b0b7d5 1952static int remember_he(struct aafilter *a, struct hostent *he)
aba5acdf 1953{
ae665a52 1954 char **ptr = he->h_addr_list;
aba5acdf
SH		 1955 int cnt = 0;
1956 int len;
1957
1958 if (he->h_addrtype == AF_INET)
1959 len = 4;
1960 else if (he->h_addrtype == AF_INET6)
1961 len = 16;
1962 else
1963 return 0;
1964
1965 while (*ptr) {
1966 struct aafilter *b = a;
acd1e437 1967
aba5acdf
SH		 1968 if (a->addr.bitlen) {
1969 if ((b = malloc(sizeof(*b))) == NULL)
1970 return cnt;
1971 *b = *a;
aba5acdf
SH		 1972 a->next = b;
1973 }
1974 memcpy(b->addr.data, *ptr, len);
1975 b->addr.bytelen = len;
1976 b->addr.bitlen = len*8;
1977 b->addr.family = he->h_addrtype;
1978 ptr++;
1979 cnt++;
1980 }
1981 return cnt;
1982}
1983
b4b0b7d5 1984static int get_dns_host(struct aafilter *a, const char *addr, int fam)
aba5acdf
SH		 1985{
1986 static int notfirst;
1987 int cnt = 0;
1988 struct hostent *he;
1989
1990 a->addr.bitlen = 0;
1991 if (!notfirst) {
1992 sethostent(1);
1993 notfirst = 1;
1994 }
1995 he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam);
1996 if (he)
1997 cnt = remember_he(a, he);
1998 if (fam == AF_UNSPEC) {
1999 he = gethostbyname2(addr, AF_INET6);
2000 if (he)
2001 cnt += remember_he(a, he);
2002 }
2003 return !cnt;
2004}
2005
acd1e437 2006static int xll_initted;
aba5acdf 2007
b4b0b7d5 2008static void xll_init(void)
aba5acdf
SH		 2009{
2010 struct rtnl_handle rth;
acd1e437 2011
d2468da0
SH		 2012 if (rtnl_open(&rth, 0) < 0)
2013 exit(1);
2014
aba5acdf
SH		 2015 ll_init_map(&rth);
2016 rtnl_close(&rth);
2017 xll_initted = 1;
2018}
2019
b4b0b7d5 2020static const char *xll_index_to_name(int index)
aba5acdf
SH		 2021{
2022 if (!xll_initted)
2023 xll_init();
2024 return ll_index_to_name(index);
2025}
2026
b4b0b7d5 2027static int xll_name_to_index(const char *dev)
aba5acdf
SH		 2028{
2029 if (!xll_initted)
2030 xll_init();
2031 return ll_name_to_index(dev);
2032}
2033
2d293212
DA		 2034void *parse_devcond(char *name)
2035{
2036 struct aafilter a = { .iface = 0 };
2037 struct aafilter *res;
2038
2039 a.iface = xll_name_to_index(name);
2040 if (a.iface == 0) {
2041 char *end;
930d3f28 2042 unsigned long n;
2d293212 2043
930d3f28
DA		 2044 n = strtoul(name, &end, 0);
2045 if (!end || end == name || *end || n > UINT_MAX)
2d293212 2046 return NULL;
930d3f28
DA		 2047
2048 a.iface = n;
2d293212
DA		 2049 }
2050
2051 res = malloc(sizeof(*res));
2052 *res = a;
2053
2054 return res;
2055}
2056
c759116a
SH		 2057static void vsock_set_inet_prefix(inet_prefix *a, __u32 cid)
2058{
2059 *a = (inet_prefix){
2060 .bytelen = sizeof(cid),
2061 .family = AF_VSOCK,
2062 };
2063 memcpy(a->data, &cid, sizeof(cid));
2064}
2065
7871f7db 2066void *parse_hostcond(char *addr, bool is_port)
aba5acdf
SH		 2067{
2068 char *port = NULL;
1527a17e 2069 struct aafilter a = { .port = -1 };
aba5acdf 2070 struct aafilter *res;
1527a17e 2071 int fam = preferred_family;
9db7bf15 2072 struct filter *f = &current_filter;
aba5acdf 2073
1527a17e 2074 if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) {
aba5acdf 2075 char *p;
acd1e437 2076
aba5acdf
SH		 2077 a.addr.family = AF_UNIX;
2078 if (strncmp(addr, "unix:", 5) == 0)
acd1e437 2079 addr += 5;
aba5acdf
SH		 2080 p = strdup(addr);
2081 a.addr.bitlen = 8*strlen(p);
99bb68ff 2082 memcpy(a.addr.data, &p, sizeof(p));
9db7bf15 2083 fam = AF_UNIX;
aba5acdf
SH		 2084 goto out;
2085 }
2086
1527a17e 2087 if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) {
aba5acdf
SH		 2088 a.addr.family = AF_PACKET;
2089 a.addr.bitlen = 0;
2090 if (strncmp(addr, "link:", 5) == 0)
acd1e437 2091 addr += 5;
aba5acdf
SH		 2092 port = strchr(addr, ':');
2093 if (port) {
2094 *port = 0;
2095 if (port[1] && strcmp(port+1, "*")) {
2096 if (get_integer(&a.port, port+1, 0)) {
2097 if ((a.port = xll_name_to_index(port+1)) <= 0)
2098 return NULL;
2099 }
2100 }
2101 }
2102 if (addr[0] && strcmp(addr, "*")) {
2103 unsigned short tmp;
acd1e437 2104
aba5acdf
SH		 2105 a.addr.bitlen = 32;
2106 if (ll_proto_a2n(&tmp, addr))
2107 return NULL;
2108 a.addr.data[0] = ntohs(tmp);
2109 }
9db7bf15 2110 fam = AF_PACKET;
aba5acdf
SH		 2111 goto out;
2112 }
2113
1527a17e 2114 if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) {
aba5acdf
SH		 2115 a.addr.family = AF_NETLINK;
2116 a.addr.bitlen = 0;
2117 if (strncmp(addr, "netlink:", 8) == 0)
acd1e437 2118 addr += 8;
aba5acdf
SH		 2119 port = strchr(addr, ':');
2120 if (port) {
2121 *port = 0;
2122 if (port[1] && strcmp(port+1, "*")) {
2123 if (get_integer(&a.port, port+1, 0)) {
2124 if (strcmp(port+1, "kernel") == 0)
2125 a.port = 0;
2126 else
2127 return NULL;
2128 }
2129 }
2130 }
2131 if (addr[0] && strcmp(addr, "*")) {
2132 a.addr.bitlen = 32;
b00daf6a 2133 if (nl_proto_a2n(&a.addr.data[0], addr) == -1)
2134 return NULL;
aba5acdf 2135 }
9db7bf15 2136 fam = AF_NETLINK;
aba5acdf
SH		 2137 goto out;
2138 }
2139
c759116a
SH		 2140 if (fam == AF_VSOCK || strncmp(addr, "vsock:", 6) == 0) {
2141 __u32 cid = ~(__u32)0;
2142
2143 a.addr.family = AF_VSOCK;
2144 if (strncmp(addr, "vsock:", 6) == 0)
2145 addr += 6;
2146
2147 if (is_port)
2148 port = addr;
2149 else {
2150 port = strchr(addr, ':');
2151 if (port) {
2152 *port = '\0';
2153 port++;
2154 }
2155 }
2156
2157 if (port && strcmp(port, "*") &&
2158 get_u32((__u32 *)&a.port, port, 0))
2159 return NULL;
2160
2161 if (addr[0] && strcmp(addr, "*")) {
2162 a.addr.bitlen = 32;
2163 if (get_u32(&cid, addr, 0))
2164 return NULL;
2165 }
2166 vsock_set_inet_prefix(&a.addr, cid);
2167 fam = AF_VSOCK;
2168 goto out;
2169 }
2170
1527a17e 2171 if (fam == AF_INET || !strncmp(addr, "inet:", 5)) {
aba5acdf 2172 fam = AF_INET;
1527a17e
VK		 2173 if (!strncmp(addr, "inet:", 5))
2174 addr += 5;
2175 } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) {
aba5acdf 2176 fam = AF_INET6;
1527a17e
VK		 2177 if (!strncmp(addr, "inet6:", 6))
2178 addr += 6;
aba5acdf
SH		 2179 }
2180
2181 /* URL-like literal [] */
2182 if (addr[0] == '[') {
2183 addr++;
2184 if ((port = strchr(addr, ']')) == NULL)
2185 return NULL;
2186 *port++ = 0;
2187 } else if (addr[0] == '*') {
2188 port = addr+1;
2189 } else {
2190 port = strrchr(strchr(addr, '/') ? : addr, ':');
2191 }
7871f7db
VK		 2192
2193 if (is_port)
2194 port = addr;
2195
aba5acdf 2196 if (port && *port) {
7871f7db
VK		 2197 if (*port == ':')
2198 *port++ = 0;
2199
aba5acdf
SH		 2200 if (*port && *port != '*') {
2201 if (get_integer(&a.port, port, 0)) {
2202 struct servent *se1 = NULL;
2203 struct servent *se2 = NULL;
acd1e437 2204
aba5acdf
SH		 2205 if (current_filter.dbs&(1<<UDP_DB))
2206 se1 = getservbyname(port, UDP_PROTO);
2207 if (current_filter.dbs&(1<<TCP_DB))
2208 se2 = getservbyname(port, TCP_PROTO);
2209 if (se1 && se2 && se1->s_port != se2->s_port) {
2210 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
2211 return NULL;
2212 }
2213 if (!se1)
2214 se1 = se2;
2215 if (se1) {
2216 a.port = ntohs(se1->s_port);
2217 } else {
2218 struct scache *s;
acd1e437 2219
aba5acdf
SH		 2220 for (s = rlist; s; s = s->next) {
2221 if ((s->proto == UDP_PROTO &&
2222 (current_filter.dbs&(1<<UDP_DB))) ||
2223 (s->proto == TCP_PROTO &&
2224 (current_filter.dbs&(1<<TCP_DB)))) {
2225 if (s->name && strcmp(s->name, port) == 0) {
2226 if (a.port > 0 && a.port != s->port) {
2227 fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
2228 return NULL;
2229 }
2230 a.port = s->port;
2231 }
2232 }
2233 }
2234 if (a.port <= 0) {
2235 fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port);
2236 return NULL;
2237 }
2238 }
2239 }
2240 }
2241 }
44448a90 2242 if (!is_port && *addr && *addr != '*') {
aba5acdf
SH		 2243 if (get_prefix_1(&a.addr, addr, fam)) {
2244 if (get_dns_host(&a, addr, fam)) {
2245 fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr);
2246 return NULL;
2247 }
2248 }
2249 }
2250
9db7bf15 2251out:
1527a17e 2252 if (fam != AF_UNSPEC) {
e56a959e 2253 int states = f->states;
1527a17e 2254 f->families = 0;
9db7bf15 2255 filter_af_set(f, fam);
e56a959e 2256 filter_states_set(f, states);
1527a17e 2257 }
9db7bf15 2258
aba5acdf
SH		 2259 res = malloc(sizeof(*res));
2260 if (res)
2261 memcpy(res, &a, sizeof(a));
2262 return res;
2263}
2264
ec75249b
LC		 2265void *parse_markmask(const char *markmask)
2266{
2267 struct aafilter a, *res;
2268
2269 if (strchr(markmask, '/')) {
2270 if (sscanf(markmask, "%i/%i", &a.mark, &a.mask) != 2)
2271 return NULL;
2272 } else {
2273 a.mask = 0xffffffff;
2274 if (sscanf(markmask, "%i", &a.mark) != 1)
2275 return NULL;
2276 }
2277
2278 res = malloc(sizeof(*res));
2279 if (res)
2280 memcpy(res, &a, sizeof(a));
2281 return res;
2282}
2283
5f27ac1d 2284static void proc_ctx_print(struct sockstat *s)
8250bc9f 2285{
5f27ac1d 2286 char *buf;
8250bc9f 2287
8250bc9f
VK		 2288 if (show_proc_ctx || show_sock_ctx) {
2289 if (find_entry(s->ino, &buf,
2290 (show_proc_ctx & show_sock_ctx) ?
2291 PROC_SOCK_CTX : PROC_CTX) > 0) {
90351722 2292 out(" users:(%s)", buf);
8250bc9f
VK		 2293 free(buf);
2294 }
2295 } else if (show_users) {
2296 if (find_entry(s->ino, &buf, USERS) > 0) {
90351722 2297 out(" users:(%s)", buf);
8250bc9f
VK		 2298 free(buf);
2299 }
2300 }
2301}
2302
1267c0b9 2303static void inet_stats_print(struct sockstat *s, bool v6only)
5f27ac1d
PS		 2304{
2305 sock_state_print(s);
2306
1267c0b9
PS		 2307 inet_addr_print(&s->local, s->lport, s->iface, v6only);
2308 inet_addr_print(&s->remote, s->rport, 0, v6only);
5f27ac1d
PS		 2309
2310 proc_ctx_print(s);
2311}
2312
055840f2 2313static int proc_parse_inet_addr(char *loc, char *rem, int family, struct
acd1e437 2314 sockstat * s)
8250bc9f
VK		 2315{
2316 s->local.family = s->remote.family = family;
2317 if (family == AF_INET) {
acd1e437
SH		 2318 sscanf(loc, "%x:%x", s->local.data, (unsigned *)&s->lport);
2319 sscanf(rem, "%x:%x", s->remote.data, (unsigned *)&s->rport);
8250bc9f
VK		 2320 s->local.bytelen = s->remote.bytelen = 4;
2321 return 0;
2322 } else {
2323 sscanf(loc, "%08x%08x%08x%08x:%x",
2324 s->local.data,
2325 s->local.data + 1,
2326 s->local.data + 2,
2327 s->local.data + 3,
2328 &s->lport);
2329 sscanf(rem, "%08x%08x%08x%08x:%x",
2330 s->remote.data,
2331 s->remote.data + 1,
2332 s->remote.data + 2,
2333 s->remote.data + 3,
2334 &s->rport);
2335 s->local.bytelen = s->remote.bytelen = 16;
2336 return 0;
2337 }
2338 return -1;
2339}
2340
2341static int proc_inet_split_line(char *line, char **loc, char **rem, char **data)
aba5acdf 2342{
aba5acdf 2343 char *p;
ae665a52 2344
aba5acdf
SH		 2345 if ((p = strchr(line, ':')) == NULL)
2346 return -1;
ae665a52 2347
8250bc9f
VK		 2348 *loc = p+2;
2349 if ((p = strchr(*loc, ':')) == NULL)
aba5acdf 2350 return -1;
ae665a52 2351
8250bc9f
VK		 2352 p[5] = 0;
2353 *rem = p+6;
2354 if ((p = strchr(*rem, ':')) == NULL)
aba5acdf 2355 return -1;
8250bc9f 2356
aba5acdf 2357 p[5] = 0;
8250bc9f
VK		 2358 *data = p+6;
2359 return 0;
2360}
ae665a52 2361
8250bc9f
VK		 2362static char *sprint_bw(char *buf, double bw)
2363{
2364 if (bw > 1000000.)
acd1e437 2365 sprintf(buf, "%.1fM", bw / 1000000.);
8250bc9f 2366 else if (bw > 1000.)
acd1e437 2367 sprintf(buf, "%.1fK", bw / 1000.);
8250bc9f
VK		 2368 else
2369 sprintf(buf, "%g", bw);
aba5acdf 2370
8250bc9f
VK		 2371 return buf;
2372}
ae665a52 2373
f89d46ad
PS		 2374static void sctp_stats_print(struct sctp_info *s)
2375{
2376 if (s->sctpi_tag)
90351722 2377 out(" tag:%x", s->sctpi_tag);
f89d46ad 2378 if (s->sctpi_state)
90351722 2379 out(" state:%s", sctp_sstate_name[s->sctpi_state]);
f89d46ad 2380 if (s->sctpi_rwnd)
90351722 2381 out(" rwnd:%d", s->sctpi_rwnd);
f89d46ad 2382 if (s->sctpi_unackdata)
90351722 2383 out(" unackdata:%d", s->sctpi_unackdata);
f89d46ad 2384 if (s->sctpi_penddata)
90351722 2385 out(" penddata:%d", s->sctpi_penddata);
f89d46ad 2386 if (s->sctpi_instrms)
90351722 2387 out(" instrms:%d", s->sctpi_instrms);
f89d46ad 2388 if (s->sctpi_outstrms)
90351722 2389 out(" outstrms:%d", s->sctpi_outstrms);
f89d46ad 2390 if (s->sctpi_inqueue)
90351722 2391 out(" inqueue:%d", s->sctpi_inqueue);
f89d46ad 2392 if (s->sctpi_outqueue)
90351722 2393 out(" outqueue:%d", s->sctpi_outqueue);
f89d46ad 2394 if (s->sctpi_overall_error)
90351722 2395 out(" overerr:%d", s->sctpi_overall_error);
f89d46ad 2396 if (s->sctpi_max_burst)
90351722 2397 out(" maxburst:%d", s->sctpi_max_burst);
f89d46ad 2398 if (s->sctpi_maxseg)
90351722 2399 out(" maxseg:%d", s->sctpi_maxseg);
f89d46ad 2400 if (s->sctpi_peer_rwnd)
90351722 2401 out(" prwnd:%d", s->sctpi_peer_rwnd);
f89d46ad 2402 if (s->sctpi_peer_tag)
90351722 2403 out(" ptag:%x", s->sctpi_peer_tag);
f89d46ad 2404 if (s->sctpi_peer_capable)
90351722 2405 out(" pcapable:%d", s->sctpi_peer_capable);
f89d46ad 2406 if (s->sctpi_peer_sack)
90351722 2407 out(" psack:%d", s->sctpi_peer_sack);
f89d46ad 2408 if (s->sctpi_s_autoclose)
90351722 2409 out(" autoclose:%d", s->sctpi_s_autoclose);
f89d46ad 2410 if (s->sctpi_s_adaptation_ind)
90351722 2411 out(" adapind:%d", s->sctpi_s_adaptation_ind);
f89d46ad 2412 if (s->sctpi_s_pd_point)
90351722 2413 out(" pdpoint:%d", s->sctpi_s_pd_point);
f89d46ad 2414 if (s->sctpi_s_nodelay)
90351722 2415 out(" nodealy:%d", s->sctpi_s_nodelay);
f89d46ad 2416 if (s->sctpi_s_disable_fragments)
90351722 2417 out(" nofrag:%d", s->sctpi_s_disable_fragments);
f89d46ad 2418 if (s->sctpi_s_v4mapped)
90351722 2419 out(" v4mapped:%d", s->sctpi_s_v4mapped);
f89d46ad 2420 if (s->sctpi_s_frag_interleave)
90351722 2421 out(" fraginl:%d", s->sctpi_s_frag_interleave);
f89d46ad
PS		 2422}
2423
8250bc9f
VK		 2424static void tcp_stats_print(struct tcpstat *s)
2425{
2426 char b1[64];
2427
2428 if (s->has_ts_opt)
90351722 2429 out(" ts");
8250bc9f 2430 if (s->has_sack_opt)
90351722 2431 out(" sack");
8250bc9f 2432 if (s->has_ecn_opt)
90351722 2433 out(" ecn");
8250bc9f 2434 if (s->has_ecnseen_opt)
90351722 2435 out(" ecnseen");
8250bc9f 2436 if (s->has_fastopen_opt)
90351722 2437 out(" fastopen");
d2055ea5 2438 if (s->cong_alg[0])
90351722 2439 out(" %s", s->cong_alg);
8250bc9f 2440 if (s->has_wscale_opt)
90351722 2441 out(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale);
8250bc9f 2442 if (s->rto)
90351722 2443 out(" rto:%g", s->rto);
8250bc9f 2444 if (s->backoff)
90351722 2445 out(" backoff:%u", s->backoff);
8250bc9f 2446 if (s->rtt)
90351722 2447 out(" rtt:%g/%g", s->rtt, s->rttvar);
8250bc9f 2448 if (s->ato)
90351722 2449 out(" ato:%g", s->ato);
8250bc9f
VK		 2450
2451 if (s->qack)
90351722 2452 out(" qack:%d", s->qack);
8250bc9f 2453 if (s->qack & 1)
90351722 2454 out(" bidir");
8250bc9f
VK		 2455
2456 if (s->mss)
90351722 2457 out(" mss:%d", s->mss);
3d791a32
RM		 2458 if (s->pmtu)
2459 out(" pmtu:%u", s->pmtu);
38e6dbc4 2460 if (s->rcv_mss)
90351722 2461 out(" rcvmss:%d", s->rcv_mss);
38e6dbc4 2462 if (s->advmss)
90351722 2463 out(" advmss:%d", s->advmss);
3bf5445c 2464 if (s->cwnd)
90351722 2465 out(" cwnd:%u", s->cwnd);
8250bc9f 2466 if (s->ssthresh)
90351722 2467 out(" ssthresh:%d", s->ssthresh);
8250bc9f 2468
5eead627
ED		 2469 if (s->bytes_sent)
2470 out(" bytes_sent:%llu", s->bytes_sent);
2471 if (s->bytes_retrans)
2472 out(" bytes_retrans:%llu", s->bytes_retrans);
1a4dda71 2473 if (s->bytes_acked)
90351722 2474 out(" bytes_acked:%llu", s->bytes_acked);
1a4dda71 2475 if (s->bytes_received)
90351722 2476 out(" bytes_received:%llu", s->bytes_received);
ecb435ea 2477 if (s->segs_out)
90351722 2478 out(" segs_out:%u", s->segs_out);
ecb435ea 2479 if (s->segs_in)
90351722 2480 out(" segs_in:%u", s->segs_in);
414aeec9 2481 if (s->data_segs_out)
90351722 2482 out(" data_segs_out:%u", s->data_segs_out);
414aeec9 2483 if (s->data_segs_in)
90351722 2484 out(" data_segs_in:%u", s->data_segs_in);
1a4dda71 2485
8250bc9f
VK		 2486 if (s->dctcp && s->dctcp->enabled) {
2487 struct dctcpstat *dctcp = s->dctcp;
2488
90351722
SB		 2489 out(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)",
2490 dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn,
2491 dctcp->ab_tot);
8250bc9f 2492 } else if (s->dctcp) {
90351722 2493 out(" dctcp:fallback_mode");
8250bc9f
VK		 2494 }
2495
2f0f9aef
NC		 2496 if (s->bbr_info) {
2497 __u64 bw;
2498
2499 bw = s->bbr_info->bbr_bw_hi;
2500 bw <<= 32;
2501 bw |= s->bbr_info->bbr_bw_lo;
2502
90351722
SB		 2503 out(" bbr:(bw:%sbps,mrtt:%g",
2504 sprint_bw(b1, bw * 8.0),
2505 (double)s->bbr_info->bbr_min_rtt / 1000.0);
2f0f9aef 2506 if (s->bbr_info->bbr_pacing_gain)
90351722
SB		 2507 out(",pacing_gain:%g",
2508 (double)s->bbr_info->bbr_pacing_gain / 256.0);
2f0f9aef 2509 if (s->bbr_info->bbr_cwnd_gain)
90351722
SB		 2510 out(",cwnd_gain:%g",
2511 (double)s->bbr_info->bbr_cwnd_gain / 256.0);
2512 out(")");
2f0f9aef
NC		 2513 }
2514
8250bc9f 2515 if (s->send_bps)
90351722 2516 out(" send %sbps", sprint_bw(b1, s->send_bps));
8250bc9f 2517 if (s->lastsnd)
90351722 2518 out(" lastsnd:%u", s->lastsnd);
8250bc9f 2519 if (s->lastrcv)
90351722 2520 out(" lastrcv:%u", s->lastrcv);
8250bc9f 2521 if (s->lastack)
90351722 2522 out(" lastack:%u", s->lastack);
8250bc9f
VK		 2523
2524 if (s->pacing_rate) {
90351722 2525 out(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate));
8250bc9f 2526 if (s->pacing_rate_max)
90351722 2527 out("/%sbps", sprint_bw(b1, s->pacing_rate_max));
8250bc9f
VK		 2528 }
2529
2f579872 2530 if (s->delivery_rate)
90351722 2531 out(" delivery_rate %sbps", sprint_bw(b1, s->delivery_rate));
2f4d834b
ED		 2532 if (s->delivered)
2533 out(" delivered:%u", s->delivered);
2534 if (s->delivered_ce)
2535 out(" delivered_ce:%u", s->delivered_ce);
2f579872 2536 if (s->app_limited)
90351722 2537 out(" app_limited");
2f579872 2538
b6c7fc61 2539 if (s->busy_time) {
90351722 2540 out(" busy:%llums", s->busy_time / 1000);
b6c7fc61 2541 if (s->rwnd_limited)
90351722
SB		 2542 out(" rwnd_limited:%llums(%.1f%%)",
2543 s->rwnd_limited / 1000,
2544 100.0 * s->rwnd_limited / s->busy_time);
b6c7fc61 2545 if (s->sndbuf_limited)
90351722
SB		 2546 out(" sndbuf_limited:%llums(%.1f%%)",
2547 s->sndbuf_limited / 1000,
2548 100.0 * s->sndbuf_limited / s->busy_time);
b6c7fc61
YC		 2549 }
2550
8250bc9f 2551 if (s->unacked)
90351722 2552 out(" unacked:%u", s->unacked);
8250bc9f 2553 if (s->retrans || s->retrans_total)
90351722 2554 out(" retrans:%u/%u", s->retrans, s->retrans_total);
8250bc9f 2555 if (s->lost)
90351722 2556 out(" lost:%u", s->lost);
055840f2 2557 if (s->sacked && s->ss.state != SS_LISTEN)
90351722 2558 out(" sacked:%u", s->sacked);
5eead627
ED		 2559 if (s->dsack_dups)
2560 out(" dsack_dups:%u", s->dsack_dups);
8250bc9f 2561 if (s->fackets)
90351722 2562 out(" fackets:%u", s->fackets);
8250bc9f 2563 if (s->reordering != 3)
90351722 2564 out(" reordering:%d", s->reordering);
5eead627
ED		 2565 if (s->reord_seen)
2566 out(" reord_seen:%d", s->reord_seen);
8250bc9f 2567 if (s->rcv_rtt)
90351722 2568 out(" rcv_rtt:%g", s->rcv_rtt);
8250bc9f 2569 if (s->rcv_space)
90351722 2570 out(" rcv_space:%d", s->rcv_space);
00ac78d3 2571 if (s->rcv_ssthresh)
90351722 2572 out(" rcv_ssthresh:%u", s->rcv_ssthresh);
9e99e495 2573 if (s->not_sent)
90351722 2574 out(" notsent:%u", s->not_sent);
9e99e495 2575 if (s->min_rtt)
90351722 2576 out(" minrtt:%g", s->min_rtt);
8250bc9f
VK		 2577}
2578
055840f2
VK		 2579static void tcp_timer_print(struct tcpstat *s)
2580{
86dfa1be
PS		 2581 static const char * const tmr_name[] = {
2582 "off",
2583 "on",
2584 "keepalive",
2585 "timewait",
2586 "persist",
2587 "unknown"
2588 };
2589
055840f2
VK		 2590 if (s->timer) {
2591 if (s->timer > 4)
2592 s->timer = 5;
90351722
SB		 2593 out(" timer:(%s,%s,%d)",
2594 tmr_name[s->timer],
2595 print_ms_timer(s->timeout),
2596 s->retrans);
055840f2
VK		 2597 }
2598}
2599
f89d46ad
PS		 2600static void sctp_timer_print(struct tcpstat *s)
2601{
2602 if (s->timer)
90351722
SB		 2603 out(" timer:(T3_RTX,%s,%d)",
2604 print_ms_timer(s->timeout), s->retrans);
f89d46ad
PS		 2605}
2606
8250bc9f
VK		 2607static int tcp_show_line(char *line, const struct filter *f, int family)
2608{
2609 int rto = 0, ato = 0;
2610 struct tcpstat s = {};
2611 char *loc, *rem, *data;
2612 char opt[256];
2613 int n;
2614 int hz = get_user_hz();
2615
2616 if (proc_inet_split_line(line, &loc, &rem, &data))
2617 return -1;
2618
2619 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 2620
8250bc9f
VK		 2621 if (!(f->states & (1 << state)))
2622 return 0;
2623
055840f2 2624 proc_parse_inet_addr(loc, rem, family, &s.ss);
ae665a52 2625
055840f2 2626 if (f->f && run_ssfilter(f->f, &s.ss) == 0)
aba5acdf 2627 return 0;
ae665a52 2628
aba5acdf 2629 opt[0] = 0;
d1f338b3 2630 n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n",
055840f2
VK		 2631 &s.ss.state, &s.ss.wq, &s.ss.rq,
2632 &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes,
2633 &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd,
2634 &s.ssthresh, opt);
ae665a52 2635
aba5acdf
SH		 2636 if (n < 17)
2637 opt[0] = 0;
ae665a52 2638
aba5acdf 2639 if (n < 12) {
8250bc9f 2640 rto = 0;
aba5acdf
SH		 2641 s.cwnd = 2;
2642 s.ssthresh = -1;
8250bc9f 2643 ato = s.qack = 0;
aba5acdf 2644 }
ae665a52 2645
8250bc9f
VK		 2646 s.retrans = s.timer != 1 ? s.probes : s.retrans;
2647 s.timeout = (s.timeout * 1000 + hz - 1) / hz;
2648 s.ato = (double)ato / hz;
2649 s.qack /= 2;
2650 s.rto = (double)rto;
2651 s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh;
2652 s.rto = s.rto != 3 * hz ? s.rto / hz : 0;
be7e4d20 2653 s.ss.type = IPPROTO_TCP;
ae665a52 2654
1267c0b9 2655 inet_stats_print(&s.ss, false);
055840f2
VK		 2656
2657 if (show_options)
2658 tcp_timer_print(&s);
116ac927 2659
aba5acdf 2660 if (show_details) {
f1b39e1b 2661 sock_details_print(&s.ss);
aba5acdf 2662 if (opt[0])
90351722 2663 out(" opt:\"%s\"", opt);
aba5acdf 2664 }
aba5acdf 2665
8250bc9f
VK		 2666 if (show_tcpinfo)
2667 tcp_stats_print(&s);
2668
aba5acdf
SH		 2669 return 0;
2670}
2671
ab01dbbb
SH		 2672static int generic_record_read(FILE *fp,
2673 int (*worker)(char*, const struct filter *, int),
2674 const struct filter *f, int fam)
aba5acdf 2675{
ab01dbbb 2676 char line[256];
aba5acdf 2677
ab01dbbb
SH		 2678 /* skip header */
2679 if (fgets(line, sizeof(line), fp) == NULL)
aba5acdf 2680 goto outerr;
ab01dbbb
SH		 2681
2682 while (fgets(line, sizeof(line), fp) != NULL) {
2683 int n = strlen(line);
acd1e437 2684
ab01dbbb
SH		 2685 if (n == 0 || line[n-1] != '\n') {
2686 errno = -EINVAL;
2687 return -1;
aba5acdf 2688 }
ab01dbbb 2689 line[n-1] = 0;
aba5acdf 2690
ab01dbbb
SH		 2691 if (worker(line, f, fam) < 0)
2692 return 0;
2693 }
aba5acdf 2694outerr:
ab01dbbb
SH		 2695
2696 return ferror(fp) ? -1 : 0;
aba5acdf 2697}
ae665a52 2698
51ff9f24
HFS		 2699static void print_skmeminfo(struct rtattr *tb[], int attrtype)
2700{
2701 const __u32 *skmeminfo;
db08bdb8
VK		 2702
2703 if (!tb[attrtype]) {
2704 if (attrtype == INET_DIAG_SKMEMINFO) {
2705 if (!tb[INET_DIAG_MEMINFO])
2706 return;
2707
2708 const struct inet_diag_meminfo *minfo =
2709 RTA_DATA(tb[INET_DIAG_MEMINFO]);
2710
90351722
SB		 2711 out(" mem:(r%u,w%u,f%u,t%u)",
2712 minfo->idiag_rmem,
2713 minfo->idiag_wmem,
2714 minfo->idiag_fmem,
2715 minfo->idiag_tmem);
db08bdb8 2716 }
51ff9f24 2717 return;
db08bdb8
VK		 2718 }
2719
51ff9f24
HFS		 2720 skmeminfo = RTA_DATA(tb[attrtype]);
2721
90351722
SB		 2722 out(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
2723 skmeminfo[SK_MEMINFO_RMEM_ALLOC],
2724 skmeminfo[SK_MEMINFO_RCVBUF],
2725 skmeminfo[SK_MEMINFO_WMEM_ALLOC],
2726 skmeminfo[SK_MEMINFO_SNDBUF],
2727 skmeminfo[SK_MEMINFO_FWD_ALLOC],
2728 skmeminfo[SK_MEMINFO_WMEM_QUEUED],
2729 skmeminfo[SK_MEMINFO_OPTMEM]);
51ff9f24
HFS		 2730
2731 if (RTA_PAYLOAD(tb[attrtype]) >=
2732 (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32))
90351722 2733 out(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]);
51ff9f24 2734
6df9c7a0
ED		 2735 if (RTA_PAYLOAD(tb[attrtype]) >=
2736 (SK_MEMINFO_DROPS + 1) * sizeof(__u32))
90351722 2737 out(",d%u", skmeminfo[SK_MEMINFO_DROPS]);
6df9c7a0 2738
90351722 2739 out(")");
51ff9f24
HFS		 2740}
2741
da9cc6ab
ID		 2742static void print_md5sig(struct tcp_diag_md5sig *sig)
2743{
90351722
SB		 2744 out("%s/%d=",
2745 format_host(sig->tcpm_family,
2746 sig->tcpm_family == AF_INET6 ? 16 : 4,
2747 &sig->tcpm_addr),
2748 sig->tcpm_prefixlen);
da9cc6ab
ID		 2749 print_escape_buf(sig->tcpm_key, sig->tcpm_keylen, " ,");
2750}
2751
8250bc9f
VK		 2752#define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt))
2753
5b816047
PE		 2754static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2755 struct rtattr *tb[])
7d105b56 2756{
b4b0b7d5 2757 double rtt = 0;
8250bc9f 2758 struct tcpstat s = {};
7d105b56 2759
055840f2
VK		 2760 s.ss.state = r->idiag_state;
2761
db08bdb8 2762 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
7d105b56 2763
351efcde 2764 if (tb[INET_DIAG_INFO]) {
05e18118 2765 struct tcp_info *info;
351efcde 2766 int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
05e18118
SH		 2767
2768 /* workaround for older kernels with less fields */
2769 if (len < sizeof(*info)) {
2770 info = alloca(sizeof(*info));
351efcde 2771 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
656e8fdd 2772 memset((char *)info + len, 0, sizeof(*info) - len);
05e18118 2773 } else
351efcde 2774 info = RTA_DATA(tb[INET_DIAG_INFO]);
05e18118 2775
b4b0b7d5 2776 if (show_options) {
8250bc9f
VK		 2777 s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS);
2778 s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK);
2779 s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN);
2780 s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN);
2781 s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA);
b4b0b7d5 2782 }
52d5ac3f 2783
d2055ea5
ED		 2784 if (tb[INET_DIAG_CONG])
2785 strncpy(s.cong_alg,
2786 rta_getattr_str(tb[INET_DIAG_CONG]),
2787 sizeof(s.cong_alg) - 1);
8250bc9f
VK		 2788
2789 if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) {
2790 s.has_wscale_opt = true;
2791 s.snd_wscale = info->tcpi_snd_wscale;
2792 s.rcv_wscale = info->tcpi_rcv_wscale;
2793 }
ea8fc104 2794
7d105b56 2795 if (info->tcpi_rto && info->tcpi_rto != 3000000)
8250bc9f
VK		 2796 s.rto = (double)info->tcpi_rto / 1000;
2797
2798 s.backoff = info->tcpi_backoff;
2799 s.rtt = (double)info->tcpi_rtt / 1000;
2800 s.rttvar = (double)info->tcpi_rttvar / 1000;
11ba90fc 2801 s.ato = (double)info->tcpi_ato / 1000;
8250bc9f 2802 s.mss = info->tcpi_snd_mss;
38e6dbc4
ED		 2803 s.rcv_mss = info->tcpi_rcv_mss;
2804 s.advmss = info->tcpi_advmss;
8250bc9f
VK		 2805 s.rcv_space = info->tcpi_rcv_space;
2806 s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000;
2807 s.lastsnd = info->tcpi_last_data_sent;
2808 s.lastrcv = info->tcpi_last_data_recv;
2809 s.lastack = info->tcpi_last_ack_recv;
2810 s.unacked = info->tcpi_unacked;
2811 s.retrans = info->tcpi_retrans;
2812 s.retrans_total = info->tcpi_total_retrans;
2813 s.lost = info->tcpi_lost;
2814 s.sacked = info->tcpi_sacked;
c4be5feb 2815 s.fackets = info->tcpi_fackets;
8250bc9f 2816 s.reordering = info->tcpi_reordering;
00ac78d3 2817 s.rcv_ssthresh = info->tcpi_rcv_ssthresh;
8250bc9f 2818 s.cwnd = info->tcpi_snd_cwnd;
3d791a32 2819 s.pmtu = info->tcpi_pmtu;
8250bc9f 2820
7d105b56 2821 if (info->tcpi_snd_ssthresh < 0xFFFF)
8250bc9f 2822 s.ssthresh = info->tcpi_snd_ssthresh;
52d5ac3f 2823
b4b0b7d5 2824 rtt = (double) info->tcpi_rtt;
351efcde 2825 if (tb[INET_DIAG_VEGASINFO]) {
05e18118 2826 const struct tcpvegas_info *vinfo
351efcde 2827 = RTA_DATA(tb[INET_DIAG_VEGASINFO]);
7d105b56 2828
ae665a52 2829 if (vinfo->tcpv_enabled &&
8250bc9f 2830 vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff)
ea8fc104 2831 rtt = vinfo->tcpv_rtt;
b4b0b7d5
SH		 2832 }
2833
907e1aca 2834 if (tb[INET_DIAG_DCTCPINFO]) {
8250bc9f
VK		 2835 struct dctcpstat *dctcp = malloc(sizeof(struct
2836 dctcpstat));
2837
907e1aca
DB		 2838 const struct tcp_dctcp_info *dinfo
2839 = RTA_DATA(tb[INET_DIAG_DCTCPINFO]);
2840
8250bc9f
VK		 2841 dctcp->enabled = !!dinfo->dctcp_enabled;
2842 dctcp->ce_state = dinfo->dctcp_ce_state;
2843 dctcp->alpha = dinfo->dctcp_alpha;
2844 dctcp->ab_ecn = dinfo->dctcp_ab_ecn;
2845 dctcp->ab_tot = dinfo->dctcp_ab_tot;
2846 s.dctcp = dctcp;
907e1aca
DB		 2847 }
2848
2f0f9aef
NC		 2849 if (tb[INET_DIAG_BBRINFO]) {
2850 const void *bbr_info = RTA_DATA(tb[INET_DIAG_BBRINFO]);
2851 int len = min(RTA_PAYLOAD(tb[INET_DIAG_BBRINFO]),
2852 sizeof(*s.bbr_info));
2853
2854 s.bbr_info = calloc(1, sizeof(*s.bbr_info));
2855 if (s.bbr_info && bbr_info)
2856 memcpy(s.bbr_info, bbr_info, len);
2857 }
2858
b4b0b7d5 2859 if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
8250bc9f
VK		 2860 s.send_bps = (double) info->tcpi_snd_cwnd *
2861 (double)info->tcpi_snd_mss * 8000000. / rtt;
7d105b56 2862 }
b4b0b7d5 2863
eb6028b2 2864 if (info->tcpi_pacing_rate &&
8250bc9f
VK		 2865 info->tcpi_pacing_rate != ~0ULL) {
2866 s.pacing_rate = info->tcpi_pacing_rate * 8.;
eb6028b2
ED		 2867
2868 if (info->tcpi_max_pacing_rate &&
8250bc9f
VK		 2869 info->tcpi_max_pacing_rate != ~0ULL)
2870 s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.;
eb6028b2 2871 }
1a4dda71
ED		 2872 s.bytes_acked = info->tcpi_bytes_acked;
2873 s.bytes_received = info->tcpi_bytes_received;
ecb435ea
CG		 2874 s.segs_out = info->tcpi_segs_out;
2875 s.segs_in = info->tcpi_segs_in;
414aeec9
MKL		 2876 s.data_segs_out = info->tcpi_data_segs_out;
2877 s.data_segs_in = info->tcpi_data_segs_in;
9e99e495 2878 s.not_sent = info->tcpi_notsent_bytes;
d9ba887e
ED		 2879 if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U)
2880 s.min_rtt = (double) info->tcpi_min_rtt / 1000;
2f579872
NC		 2881 s.delivery_rate = info->tcpi_delivery_rate * 8.;
2882 s.app_limited = info->tcpi_delivery_rate_app_limited;
b6c7fc61
YC		 2883 s.busy_time = info->tcpi_busy_time;
2884 s.rwnd_limited = info->tcpi_rwnd_limited;
2885 s.sndbuf_limited = info->tcpi_sndbuf_limited;
2f4d834b
ED		 2886 s.delivered = info->tcpi_delivered;
2887 s.delivered_ce = info->tcpi_delivered_ce;
5eead627
ED		 2888 s.dsack_dups = info->tcpi_dsack_dups;
2889 s.reord_seen = info->tcpi_reord_seen;
2890 s.bytes_sent = info->tcpi_bytes_sent;
2891 s.bytes_retrans = info->tcpi_bytes_retrans;
8250bc9f 2892 tcp_stats_print(&s);
92de1c2c 2893 free(s.dctcp);
2f0f9aef 2894 free(s.bbr_info);
77a8ca81 2895 }
da9cc6ab
ID		 2896 if (tb[INET_DIAG_MD5SIG]) {
2897 struct tcp_diag_md5sig *sig = RTA_DATA(tb[INET_DIAG_MD5SIG]);
2898 int len = RTA_PAYLOAD(tb[INET_DIAG_MD5SIG]);
2899
90351722 2900 out(" md5keys:");
da9cc6ab
ID		 2901 print_md5sig(sig++);
2902 for (len -= sizeof(*sig); len > 0; len -= sizeof(*sig)) {
90351722 2903 out(",");
da9cc6ab
ID		 2904 print_md5sig(sig++);
2905 }
2906 }
77a8ca81
PE		 2907}
2908
f89d46ad
PS		 2909static const char *format_host_sa(struct sockaddr_storage *sa)
2910{
2911 union {
2912 struct sockaddr_in sin;
2913 struct sockaddr_in6 sin6;
2914 } *saddr = (void *)sa;
2915
2916 switch (sa->ss_family) {
2917 case AF_INET:
2918 return format_host(AF_INET, 4, &saddr->sin.sin_addr);
2919 case AF_INET6:
2920 return format_host(AF_INET6, 16, &saddr->sin6.sin6_addr);
2921 default:
2922 return "";
2923 }
2924}
2925
2926static void sctp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
2927 struct rtattr *tb[])
2928{
2929 struct sockaddr_storage *sa;
2930 int len;
2931
2932 print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
2933
2934 if (tb[INET_DIAG_LOCALS]) {
2935 len = RTA_PAYLOAD(tb[INET_DIAG_LOCALS]);
2936 sa = RTA_DATA(tb[INET_DIAG_LOCALS]);
2937
90351722 2938 out("locals:%s", format_host_sa(sa));
f89d46ad 2939 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
90351722 2940 out(",%s", format_host_sa(sa));
f89d46ad
PS		 2941
2942 }
2943 if (tb[INET_DIAG_PEERS]) {
2944 len = RTA_PAYLOAD(tb[INET_DIAG_PEERS]);
2945 sa = RTA_DATA(tb[INET_DIAG_PEERS]);
2946
90351722 2947 out(" peers:%s", format_host_sa(sa));
f89d46ad 2948 for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa))
90351722 2949 out(",%s", format_host_sa(sa));
f89d46ad
PS		 2950 }
2951 if (tb[INET_DIAG_INFO]) {
2952 struct sctp_info *info;
2953 len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
2954
2955 /* workaround for older kernels with less fields */
2956 if (len < sizeof(*info)) {
2957 info = alloca(sizeof(*info));
2958 memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
2959 memset((char *)info + len, 0, sizeof(*info) - len);
2960 } else
2961 info = RTA_DATA(tb[INET_DIAG_INFO]);
2962
2963 sctp_stats_print(info);
2964 }
2965}
2966
82d73ea0 2967static void parse_diag_msg(struct nlmsghdr *nlh, struct sockstat *s)
aba5acdf 2968{
acd1e437 2969 struct rtattr *tb[INET_DIAG_MAX+1];
351efcde 2970 struct inet_diag_msg *r = NLMSG_DATA(nlh);
aba5acdf 2971
acd1e437 2972 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
5b816047
PE		 2973 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
2974
82d73ea0
DA		 2975 s->state = r->idiag_state;
2976 s->local.family = s->remote.family = r->idiag_family;
2977 s->lport = ntohs(r->id.idiag_sport);
2978 s->rport = ntohs(r->id.idiag_dport);
2979 s->wq = r->idiag_wqueue;
2980 s->rq = r->idiag_rqueue;
2981 s->ino = r->idiag_inode;
2982 s->uid = r->idiag_uid;
2983 s->iface = r->id.idiag_if;
2984 s->sk = cookie_sk_get(&r->id.idiag_cookie[0]);
2985
ec75249b
LC		 2986 s->mark = 0;
2987 if (tb[INET_DIAG_MARK])
9f1370c0 2988 s->mark = rta_getattr_u32(tb[INET_DIAG_MARK]);
41fe6c34 2989 if (tb[INET_DIAG_PROTOCOL])
9f1370c0 2990 s->raw_prot = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]);
41fe6c34
CG		 2991 else
2992 s->raw_prot = 0;
ec75249b 2993
82d73ea0
DA		 2994 if (s->local.family == AF_INET)
2995 s->local.bytelen = s->remote.bytelen = 4;
2996 else
2997 s->local.bytelen = s->remote.bytelen = 16;
8250bc9f 2998
82d73ea0
DA		 2999 memcpy(s->local.data, r->id.idiag_src, s->local.bytelen);
3000 memcpy(s->remote.data, r->id.idiag_dst, s->local.bytelen);
3001}
aba5acdf 3002
82d73ea0 3003static int inet_show_sock(struct nlmsghdr *nlh,
be7e4d20 3004 struct sockstat *s)
82d73ea0
DA		 3005{
3006 struct rtattr *tb[INET_DIAG_MAX+1];
3007 struct inet_diag_msg *r = NLMSG_DATA(nlh);
1267c0b9 3008 unsigned char v6only = 0;
82d73ea0
DA		 3009
3010 parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1),
3011 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
aba5acdf 3012
6885e3bf 3013 if (tb[INET_DIAG_PROTOCOL])
9f1370c0 3014 s->type = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]);
6885e3bf 3015
1267c0b9
PS		 3016 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY])
3017 v6only = rta_getattr_u8(tb[INET_DIAG_SKV6ONLY]);
3018
3019 inet_stats_print(s, v6only);
116ac927 3020
055840f2
VK		 3021 if (show_options) {
3022 struct tcpstat t = {};
3023
3024 t.timer = r->idiag_timer;
3025 t.timeout = r->idiag_expires;
3026 t.retrans = r->idiag_retrans;
be7e4d20 3027 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 3028 sctp_timer_print(&t);
3029 else
3030 tcp_timer_print(&t);
055840f2
VK		 3031 }
3032
aba5acdf 3033 if (show_details) {
82d73ea0 3034 sock_details_print(s);
1267c0b9 3035 if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY])
90351722 3036 out(" v6only:%u", v6only);
1267c0b9 3037
5b816047
PE		 3038 if (tb[INET_DIAG_SHUTDOWN]) {
3039 unsigned char mask;
acd1e437 3040
9f1370c0 3041 mask = rta_getattr_u8(tb[INET_DIAG_SHUTDOWN]);
90351722
SB		 3042 out(" %c-%c",
3043 mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
5b816047 3044 }
aba5acdf 3045 }
8250bc9f 3046
0f3f0ca3
KK		 3047 if (show_tos) {
3048 if (tb[INET_DIAG_TOS])
3049 out(" tos:%#x", rta_getattr_u8(tb[INET_DIAG_TOS]));
3050 if (tb[INET_DIAG_TCLASS])
3051 out(" tclass:%#x", rta_getattr_u8(tb[INET_DIAG_TCLASS]));
3052 if (tb[INET_DIAG_CLASS_ID])
3053 out(" class_id:%#x", rta_getattr_u32(tb[INET_DIAG_CLASS_ID]));
3054 }
3055
be7e4d20 3056 if (show_mem || (show_tcpinfo && s->type != IPPROTO_UDP)) {
296b5de7
JH		 3057 if (!oneline)
3058 out("\n\t");
be7e4d20 3059 if (s->type == IPPROTO_SCTP)
f89d46ad
PS		 3060 sctp_show_info(nlh, r, tb);
3061 else
3062 tcp_show_info(nlh, r, tb);
aba5acdf 3063 }
f89d46ad 3064 sctp_ino = s->ino;
7d105b56 3065
aba5acdf 3066 return 0;
aba5acdf
SH		 3067}
3068
746a695f 3069static int tcpdiag_send(int fd, int protocol, struct filter *f)
aba5acdf 3070{
d17b136f 3071 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
aba5acdf
SH		 3072 struct {
3073 struct nlmsghdr nlh;
351efcde 3074 struct inet_diag_req r;
d17b136f
PS		 3075 } req = {
3076 .nlh.nlmsg_len = sizeof(req),
3077 .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST,
3078 .nlh.nlmsg_seq = MAGIC_SEQ,
3079 .r.idiag_family = AF_INET,
3080 .r.idiag_states = f->states,
3081 };
aba5acdf
SH		 3082 char *bc = NULL;
3083 int bclen;
3084 struct msghdr msg;
3085 struct rtattr rta;
aba5acdf 3086 struct iovec iov[3];
376fb868 3087 int iovlen = 1;
aba5acdf 3088
346f8ca8
PE		 3089 if (protocol == IPPROTO_UDP)
3090 return -1;
3091
3fe5b534
PE		 3092 if (protocol == IPPROTO_TCP)
3093 req.nlh.nlmsg_type = TCPDIAG_GETSOCK;
3094 else
3095 req.nlh.nlmsg_type = DCCPDIAG_GETSOCK;
910b0397 3096 if (show_mem) {
ae665a52 3097 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
910b0397
SW		 3098 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
3099 }
b4b0b7d5 3100
7d105b56 3101 if (show_tcpinfo) {
351efcde
SH		 3102 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
3103 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
3104 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
7d105b56 3105 }
aba5acdf 3106
0f3f0ca3
KK		 3107 if (show_tos) {
3108 req.r.idiag_ext |= (1<<(INET_DIAG_TOS-1));
3109 req.r.idiag_ext |= (1<<(INET_DIAG_TCLASS-1));
3110 }
3111
ae665a52
SH		 3112 iov[0] = (struct iovec){
3113 .iov_base = &req,
3114 .iov_len = sizeof(req)
ea8fc104 3115 };
aba5acdf
SH		 3116 if (f->f) {
3117 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 3118 if (bclen) {
3119 rta.rta_type = INET_DIAG_REQ_BYTECODE;
3120 rta.rta_len = RTA_LENGTH(bclen);
3121 iov[1] = (struct iovec){ &rta, sizeof(rta) };
3122 iov[2] = (struct iovec){ bc, bclen };
3123 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
3124 iovlen = 3;
3125 }
aba5acdf
SH		 3126 }
3127
3128 msg = (struct msghdr) {
acd1e437 3129 .msg_name = (void *)&nladdr,
ea8fc104 3130 .msg_namelen = sizeof(nladdr),
ae665a52 3131 .msg_iov = iov,
376fb868 3132 .msg_iovlen = iovlen,
aba5acdf
SH		 3133 };
3134
930a75f9
ED		 3135 if (sendmsg(fd, &msg, 0) < 0) {
3136 close(fd);
aba5acdf 3137 return -1;
930a75f9 3138 }
aba5acdf 3139
746a695f
PE		 3140 return 0;
3141}
3142
886d19d6
PE		 3143static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
3144{
d17b136f 3145 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
5fb421d4 3146 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
886d19d6
PE		 3147 char *bc = NULL;
3148 int bclen;
3149 struct msghdr msg;
3150 struct rtattr rta;
3151 struct iovec iov[3];
376fb868 3152 int iovlen = 1;
886d19d6
PE		 3153
3154 if (family == PF_UNSPEC)
3155 return tcpdiag_send(fd, protocol, f);
3156
886d19d6
PE		 3157 memset(&req.r, 0, sizeof(req.r));
3158 req.r.sdiag_family = family;
3159 req.r.sdiag_protocol = protocol;
3160 req.r.idiag_states = f->states;
3161 if (show_mem) {
3162 req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
3163 req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
3164 }
3165
3166 if (show_tcpinfo) {
3167 req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
3168 req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
3169 req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
3170 }
3171
0f3f0ca3
KK		 3172 if (show_tos) {
3173 req.r.idiag_ext |= (1<<(INET_DIAG_TOS-1));
3174 req.r.idiag_ext |= (1<<(INET_DIAG_TCLASS-1));
3175 }
3176
886d19d6
PE		 3177 iov[0] = (struct iovec){
3178 .iov_base = &req,
3179 .iov_len = sizeof(req)
3180 };
3181 if (f->f) {
3182 bclen = ssfilter_bytecompile(f->f, &bc);
376fb868
DA		 3183 if (bclen) {
3184 rta.rta_type = INET_DIAG_REQ_BYTECODE;
3185 rta.rta_len = RTA_LENGTH(bclen);
3186 iov[1] = (struct iovec){ &rta, sizeof(rta) };
3187 iov[2] = (struct iovec){ bc, bclen };
3188 req.nlh.nlmsg_len += RTA_LENGTH(bclen);
3189 iovlen = 3;
3190 }
886d19d6
PE		 3191 }
3192
3193 msg = (struct msghdr) {
acd1e437 3194 .msg_name = (void *)&nladdr,
886d19d6
PE		 3195 .msg_namelen = sizeof(nladdr),
3196 .msg_iov = iov,
376fb868 3197 .msg_iovlen = iovlen,
886d19d6
PE		 3198 };
3199
3200 if (sendmsg(fd, &msg, 0) < 0) {
3201 close(fd);
3202 return -1;
3203 }
3204
3205 return 0;
3206}
3207
486ccd99
VK		 3208struct inet_diag_arg {
3209 struct filter *f;
3210 int protocol;
fb2594c1 3211 struct rtnl_handle *rth;
486ccd99 3212};
aba5acdf 3213
41fe6c34 3214static int kill_inet_sock(struct nlmsghdr *h, void *arg, struct sockstat *s)
fb2594c1
LC		 3215{
3216 struct inet_diag_msg *d = NLMSG_DATA(h);
3217 struct inet_diag_arg *diag_arg = arg;
3218 struct rtnl_handle *rth = diag_arg->rth;
acd1e437 3219
fb2594c1
LC		 3220 DIAG_REQUEST(req, struct inet_diag_req_v2 r);
3221
3222 req.nlh.nlmsg_type = SOCK_DESTROY;
3223 req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
3224 req.nlh.nlmsg_seq = ++rth->seq;
3225 req.r.sdiag_family = d->idiag_family;
3226 req.r.sdiag_protocol = diag_arg->protocol;
3227 req.r.id = d->id;
3228
41fe6c34
CG		 3229 if (diag_arg->protocol == IPPROTO_RAW) {
3230 struct inet_diag_req_raw *raw = (void *)&req.r;
3231
3232 BUILD_BUG_ON(sizeof(req.r) != sizeof(*raw));
3233 raw->sdiag_raw_protocol = s->raw_prot;
3234 }
3235
86bf43c7 3236 return rtnl_talk(rth, &req.nlh, NULL);
fb2594c1
LC		 3237}
3238
cd554f2c 3239static int show_one_inet_sock(struct nlmsghdr *h, void *arg)
486ccd99
VK		 3240{
3241 int err;
3242 struct inet_diag_arg *diag_arg = arg;
3243 struct inet_diag_msg *r = NLMSG_DATA(h);
82d73ea0 3244 struct sockstat s = {};
aba5acdf 3245
b338a3e7 3246 if (!(diag_arg->f->families & FAMILY_MASK(r->idiag_family)))
486ccd99 3247 return 0;
82d73ea0
DA		 3248
3249 parse_diag_msg(h, &s);
be7e4d20 3250 s.type = diag_arg->protocol;
82d73ea0
DA		 3251
3252 if (diag_arg->f->f && run_ssfilter(diag_arg->f->f, &s) == 0)
3253 return 0;
3254
41fe6c34 3255 if (diag_arg->f->kill && kill_inet_sock(h, arg, &s) != 0) {
fb2594c1
LC		 3256 if (errno == EOPNOTSUPP || errno == ENOENT) {
3257 /* Socket can't be closed, or is already closed. */
3258 return 0;
3259 } else {
3260 perror("SOCK_DESTROY answers");
3261 return -1;
3262 }
3263 }
82d73ea0 3264
be7e4d20 3265 err = inet_show_sock(h, &s);
82d73ea0 3266 if (err < 0)
486ccd99 3267 return err;
aba5acdf 3268
486ccd99
VK		 3269 return 0;
3270}
886d19d6 3271
486ccd99
VK		 3272static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol)
3273{
3274 int err = 0;
fb2594c1 3275 struct rtnl_handle rth, rth2;
486ccd99
VK		 3276 int family = PF_INET;
3277 struct inet_diag_arg arg = { .f = f, .protocol = protocol };
886d19d6 3278
486ccd99
VK		 3279 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
3280 return -1;
fb2594c1
LC		 3281
3282 if (f->kill) {
3283 if (rtnl_open_byproto(&rth2, 0, NETLINK_SOCK_DIAG)) {
3284 rtnl_close(&rth);
3285 return -1;
3286 }
3287 arg.rth = &rth2;
3288 }
3289
486ccd99
VK		 3290 rth.dump = MAGIC_SEQ;
3291 rth.dump_fp = dump_fp;
518af1e0
ED		 3292 if (preferred_family == PF_INET6)
3293 family = PF_INET6;
886d19d6 3294
486ccd99
VK		 3295again:
3296 if ((err = sockdiag_send(family, rth.fd, protocol, f)))
3297 goto Exit;
aba5acdf 3298
486ccd99
VK		 3299 if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) {
3300 if (family != PF_UNSPEC) {
3301 family = PF_UNSPEC;
3302 goto again;
aba5acdf 3303 }
486ccd99 3304 goto Exit;
aba5acdf 3305 }
518af1e0 3306 if (family == PF_INET && preferred_family != PF_INET) {
886d19d6
PE		 3307 family = PF_INET6;
3308 goto again;
3309 }
3310
486ccd99
VK		 3311Exit:
3312 rtnl_close(&rth);
fb2594c1
LC		 3313 if (arg.rth)
3314 rtnl_close(arg.rth);
486ccd99 3315 return err;
aba5acdf
SH		 3316}
3317
ab01dbbb 3318static int tcp_show_netlink_file(struct filter *f)
aba5acdf
SH		 3319{
3320 FILE *fp;
e557212e 3321 char buf[16384];
4b45ae22 3322 int err = -1;
aba5acdf
SH		 3323
3324 if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) {
3325 perror("fopen($TCPDIAG_FILE)");
4b45ae22 3326 return err;
aba5acdf
SH		 3327 }
3328
3329 while (1) {
4b45ae22 3330 int status, err2;
acd1e437 3331 struct nlmsghdr *h = (struct nlmsghdr *)buf;
82d73ea0 3332 struct sockstat s = {};
aba5acdf
SH		 3333
3334 status = fread(buf, 1, sizeof(*h), fp);
3335 if (status < 0) {
3336 perror("Reading header from $TCPDIAG_FILE");
4b45ae22 3337 break;
aba5acdf
SH		 3338 }
3339 if (status != sizeof(*h)) {
3340 perror("Unexpected EOF reading $TCPDIAG_FILE");
4b45ae22 3341 break;
aba5acdf
SH		 3342 }
3343
3344 status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp);
3345
3346 if (status < 0) {
3347 perror("Reading $TCPDIAG_FILE");
4b45ae22 3348 break;
aba5acdf
SH		 3349 }
3350 if (status + sizeof(*h) < h->nlmsg_len) {
3351 perror("Unexpected EOF reading $TCPDIAG_FILE");
4b45ae22 3352 break;
aba5acdf
SH		 3353 }
3354
3355 /* The only legal exit point */
4b45ae22
PS		 3356 if (h->nlmsg_type == NLMSG_DONE) {
3357 err = 0;
3358 break;
3359 }
aba5acdf
SH		 3360
3361 if (h->nlmsg_type == NLMSG_ERROR) {
acd1e437
SH		 3362 struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h);
3363
aba5acdf
SH		 3364 if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
3365 fprintf(stderr, "ERROR truncated\n");
3366 } else {
3367 errno = -err->error;
3368 perror("TCPDIAG answered");
3369 }
4b45ae22 3370 break;
aba5acdf
SH		 3371 }
3372
82d73ea0 3373 parse_diag_msg(h, &s);
be7e4d20 3374 s.type = IPPROTO_TCP;
82d73ea0
DA		 3375
3376 if (f && f->f && run_ssfilter(f->f, &s) == 0)
3377 continue;
3378
4b45ae22
PS		 3379 err2 = inet_show_sock(h, &s);
3380 if (err2 < 0) {
3381 err = err2;
3382 break;
3383 }
aba5acdf 3384 }
4b45ae22
PS		 3385
3386 fclose(fp);
3387 return err;
aba5acdf
SH		 3388}
3389
6c6bbc30 3390static int tcp_show(struct filter *f)
aba5acdf 3391{
ab01dbbb 3392 FILE *fp = NULL;
aba5acdf 3393 char *buf = NULL;
10f68773 3394 int bufsize = 1024*1024;
aba5acdf 3395
1527a17e
VK		 3396 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
3397 return 0;
3398
aba5acdf
SH		 3399 dg_proto = TCP_PROTO;
3400
3401 if (getenv("TCPDIAG_FILE"))
3402 return tcp_show_netlink_file(f);
3403
3404 if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
6c6bbc30 3405 && inet_show_netlink(f, NULL, IPPROTO_TCP) == 0)
aba5acdf
SH		 3406 return 0;
3407
3408 /* Sigh... We have to parse /proc/net/tcp... */
aba5acdf
SH		 3409 while (bufsize >= 64*1024) {
3410 if ((buf = malloc(bufsize)) != NULL)
3411 break;
3412 bufsize /= 2;
3413 }
3414 if (buf == NULL) {
3415 errno = ENOMEM;
3416 return -1;
3417 }
3418
b338a3e7 3419 if (f->families & FAMILY_MASK(AF_INET)) {
69cae645 3420 if ((fp = net_tcp_open()) == NULL)
aba5acdf 3421 goto outerr;
ab01dbbb
SH		 3422
3423 setbuffer(fp, buf, bufsize);
3424 if (generic_record_read(fp, tcp_show_line, f, AF_INET))
aba5acdf 3425 goto outerr;
ab01dbbb 3426 fclose(fp);
aba5acdf
SH		 3427 }
3428
b338a3e7 3429 if ((f->families & FAMILY_MASK(AF_INET6)) &&
69cae645 3430 (fp = net_tcp6_open()) != NULL) {
ab01dbbb
SH		 3431 setbuffer(fp, buf, bufsize);
3432 if (generic_record_read(fp, tcp_show_line, f, AF_INET6))
aba5acdf 3433 goto outerr;
ab01dbbb 3434 fclose(fp);
aba5acdf
SH		 3435 }
3436
3437 free(buf);
3438 return 0;
3439
3440outerr:
3441 do {
3442 int saved_errno = errno;
acd1e437 3443
92de1c2c 3444 free(buf);
ab01dbbb
SH		 3445 if (fp)
3446 fclose(fp);
aba5acdf
SH		 3447 errno = saved_errno;
3448 return -1;
3449 } while (0);
3450}
3451
6c6bbc30
PS		 3452static int dccp_show(struct filter *f)
3453{
3454 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
3455 return 0;
3456
3457 if (!getenv("PROC_NET_DCCP") && !getenv("PROC_ROOT")
3458 && inet_show_netlink(f, NULL, IPPROTO_DCCP) == 0)
3459 return 0;
3460
3461 return 0;
3462}
3463
f89d46ad
PS		 3464static int sctp_show(struct filter *f)
3465{
3466 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
3467 return 0;
3468
3469 if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT")
3470 && inet_show_netlink(f, NULL, IPPROTO_SCTP) == 0)
3471 return 0;
3472
3473 return 0;
3474}
aba5acdf 3475
d1f28cf1 3476static int dgram_show_line(char *line, const struct filter *f, int family)
aba5acdf 3477{
055840f2 3478 struct sockstat s = {};
aba5acdf
SH		 3479 char *loc, *rem, *data;
3480 char opt[256];
3481 int n;
aba5acdf 3482
8250bc9f 3483 if (proc_inet_split_line(line, &loc, &rem, &data))
aba5acdf 3484 return -1;
aba5acdf 3485
8250bc9f 3486 int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
acd1e437 3487
8250bc9f
VK		 3488 if (!(f->states & (1 << state)))
3489 return 0;
aba5acdf 3490
8250bc9f 3491 proc_parse_inet_addr(loc, rem, family, &s);
aba5acdf
SH		 3492
3493 if (f->f && run_ssfilter(f->f, &s) == 0)
3494 return 0;
3495
3496 opt[0] = 0;
e7113c61 3497 n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
aba5acdf
SH		 3498 &s.state, &s.wq, &s.rq,
3499 &s.uid, &s.ino,
3500 &s.refcnt, &s.sk, opt);
3501
3502 if (n < 9)
3503 opt[0] = 0;
3504
be7e4d20 3505 s.type = dg_proto == UDP_PROTO ? IPPROTO_UDP : 0;
1267c0b9 3506 inet_stats_print(&s, false);
aba5acdf 3507
f1b39e1b 3508 if (show_details && opt[0])
90351722 3509 out(" opt:\"%s\"", opt);
aba5acdf
SH		 3510
3511 return 0;
3512}
3513
d1f28cf1 3514static int udp_show(struct filter *f)
aba5acdf 3515{
ab01dbbb 3516 FILE *fp = NULL;
aba5acdf 3517
1527a17e
VK		 3518 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
3519 return 0;
3520
ace5cb31
VK		 3521 dg_proto = UDP_PROTO;
3522
346f8ca8
PE		 3523 if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
3524 && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0)
3525 return 0;
3526
b338a3e7 3527 if (f->families&FAMILY_MASK(AF_INET)) {
69cae645 3528 if ((fp = net_udp_open()) == NULL)
aba5acdf 3529 goto outerr;
ab01dbbb 3530 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 3531 goto outerr;
ab01dbbb 3532 fclose(fp);
aba5acdf
SH		 3533 }
3534
b338a3e7 3535 if ((f->families&FAMILY_MASK(AF_INET6)) &&
69cae645 3536 (fp = net_udp6_open()) != NULL) {
ab01dbbb 3537 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 3538 goto outerr;
ab01dbbb 3539 fclose(fp);
aba5acdf
SH		 3540 }
3541 return 0;
3542
3543outerr:
3544 do {
3545 int saved_errno = errno;
acd1e437 3546
ab01dbbb
SH		 3547 if (fp)
3548 fclose(fp);
aba5acdf
SH		 3549 errno = saved_errno;
3550 return -1;
3551 } while (0);
3552}
3553
d1f28cf1 3554static int raw_show(struct filter *f)
aba5acdf 3555{
ab01dbbb 3556 FILE *fp = NULL;
aba5acdf 3557
1527a17e
VK		 3558 if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6))
3559 return 0;
3560
aba5acdf
SH		 3561 dg_proto = RAW_PROTO;
3562
41fe6c34
CG		 3563 if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") &&
3564 inet_show_netlink(f, NULL, IPPROTO_RAW) == 0)
3565 return 0;
3566
b338a3e7 3567 if (f->families&FAMILY_MASK(AF_INET)) {
69cae645 3568 if ((fp = net_raw_open()) == NULL)
aba5acdf 3569 goto outerr;
ab01dbbb 3570 if (generic_record_read(fp, dgram_show_line, f, AF_INET))
aba5acdf 3571 goto outerr;
ab01dbbb 3572 fclose(fp);
aba5acdf
SH		 3573 }
3574
b338a3e7 3575 if ((f->families&FAMILY_MASK(AF_INET6)) &&
69cae645 3576 (fp = net_raw6_open()) != NULL) {
ab01dbbb 3577 if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
aba5acdf 3578 goto outerr;
ab01dbbb 3579 fclose(fp);
aba5acdf
SH		 3580 }
3581 return 0;
3582
3583outerr:
3584 do {
3585 int saved_errno = errno;
acd1e437 3586
ab01dbbb
SH		 3587 if (fp)
3588 fclose(fp);
aba5acdf
SH		 3589 errno = saved_errno;
3590 return -1;
3591 } while (0);
3592}
3593
ec4d0d8a 3594#define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat))
aba5acdf 3595
2d0e538f 3596static void unix_list_drop_first(struct sockstat **list)
aba5acdf 3597{
2d0e538f 3598 struct sockstat *s = *list;
ec4d0d8a 3599
2d0e538f
PS		 3600 (*list) = (*list)->next;
3601 free(s->name);
3602 free(s);
aba5acdf
SH		 3603}
3604
ec4d0d8a 3605static bool unix_type_skip(struct sockstat *s, struct filter *f)
bf4ceee6
VK		 3606{
3607 if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
3608 return true;
3609 if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
3610 return true;
3611 if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
3612 return true;
3613 return false;
3614}
3615
2d0e538f 3616static void unix_stats_print(struct sockstat *s, struct filter *f)
aba5acdf 3617{
b217df10 3618 char port_name[30] = {};
aba5acdf 3619
2d0e538f 3620 sock_state_print(s);
2d791bc8 3621
2d0e538f
PS		 3622 sock_addr_print(s->name ?: "*", " ",
3623 int_to_str(s->lport, port_name), NULL);
3624 sock_addr_print(s->peer_name ?: "*", " ",
3625 int_to_str(s->rport, port_name), NULL);
116ac927 3626
2d0e538f 3627 proc_ctx_print(s);
aba5acdf
SH		 3628}
3629
cd554f2c 3630static int unix_show_sock(struct nlmsghdr *nlh, void *arg)
dfbaa90d 3631{
8a4025f6 3632 struct filter *f = (struct filter *)arg;
dfbaa90d
PE		 3633 struct unix_diag_msg *r = NLMSG_DATA(nlh);
3634 struct rtattr *tb[UNIX_DIAG_MAX+1];
99bb68ff
VK		 3635 char name[128];
3636 struct sockstat stat = { .name = "*", .peer_name = "*" };
dfbaa90d 3637
acd1e437 3638 parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr *)(r+1),
dfbaa90d
PE		 3639 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3640
bf4ceee6
VK		 3641 stat.type = r->udiag_type;
3642 stat.state = r->udiag_state;
ec4d0d8a
VK		 3643 stat.ino = stat.lport = r->udiag_ino;
3644 stat.local.family = stat.remote.family = AF_UNIX;
0d2e01c5 3645
bf4ceee6
VK		 3646 if (unix_type_skip(&stat, f))
3647 return 0;
dfbaa90d 3648
defd61ca
HFS		 3649 if (tb[UNIX_DIAG_RQLEN]) {
3650 struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]);
acd1e437 3651
bf4ceee6
VK		 3652 stat.rq = rql->udiag_rqueue;
3653 stat.wq = rql->udiag_wqueue;
defd61ca 3654 }
dfbaa90d
PE		 3655 if (tb[UNIX_DIAG_NAME]) {
3656 int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
3657
3658 memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
3659 name[len] = '\0';
1dd0cca7
SH		 3660 if (name[0] == '\0') {
3661 int i;
3662 for (i = 0; i < len; i++)
878dadc7
IB		 3663 if (name[i] == '\0')
3664 name[i] = '@';
1dd0cca7 3665 }
99bb68ff
VK		 3666 stat.name = &name[0];
3667 memcpy(stat.local.data, &stat.name, sizeof(stat.name));
bf4ceee6 3668 }
dfbaa90d 3669 if (tb[UNIX_DIAG_PEER])
ec4d0d8a 3670 stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]);
dfbaa90d 3671
29999b0f
VK		 3672 if (f->f && run_ssfilter(f->f, &stat) == 0)
3673 return 0;
3674
bf4ceee6 3675 unix_stats_print(&stat, f);
dfbaa90d 3676
45199997 3677 if (show_mem)
51ff9f24 3678 print_skmeminfo(tb, UNIX_DIAG_MEMINFO);
5b816047
PE		 3679 if (show_details) {
3680 if (tb[UNIX_DIAG_SHUTDOWN]) {
3681 unsigned char mask;
acd1e437 3682
9f1370c0 3683 mask = rta_getattr_u8(tb[UNIX_DIAG_SHUTDOWN]);
90351722
SB		 3684 out(" %c-%c",
3685 mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
5b816047 3686 }
0bab7630
CW		 3687 if (tb[UNIX_DIAG_VFS]) {
3688 struct unix_diag_vfs *uv = RTA_DATA(tb[UNIX_DIAG_VFS]);
3689
3690 out(" ino:%u dev:%u/%u", uv->udiag_vfs_ino, major(uv->udiag_vfs_dev),
3691 minor(uv->udiag_vfs_dev));
3692 }
3693 if (tb[UNIX_DIAG_ICONS]) {
3694 int len = RTA_PAYLOAD(tb[UNIX_DIAG_ICONS]);
3695 __u32 *peers = RTA_DATA(tb[UNIX_DIAG_ICONS]);
3696 int i;
3697
3698 out(" peers:");
3699 for (i = 0; i < len / sizeof(__u32); i++)
3700 out(" %u", peers[i]);
3701 }
5b816047 3702 }
ec4d0d8a 3703
dfbaa90d
PE		 3704 return 0;
3705}
3706
8a4025f6 3707static int handle_netlink_request(struct filter *f, struct nlmsghdr *req,
3708 size_t size, rtnl_filter_t show_one_sock)
dfbaa90d 3709{
8a4025f6 3710 int ret = -1;
3711 struct rtnl_handle rth;
dfbaa90d 3712
8a4025f6 3713 if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG))
dfbaa90d
PE		 3714 return -1;
3715
8a4025f6 3716 rth.dump = MAGIC_SEQ;
dfbaa90d 3717
8a4025f6 3718 if (rtnl_send(&rth, req, size) < 0)
3719 goto Exit;
dfbaa90d 3720
8a4025f6 3721 if (rtnl_dump_filter(&rth, show_one_sock, f))
3722 goto Exit;
dfbaa90d 3723
8a4025f6 3724 ret = 0;
3725Exit:
3726 rtnl_close(&rth);
3727 return ret;
dfbaa90d
PE		 3728}
3729
8a4025f6 3730static int unix_show_netlink(struct filter *f)
d8402b96 3731{
5fb421d4 3732 DIAG_REQUEST(req, struct unix_diag_req r);
d8402b96
AV		 3733
3734 req.r.sdiag_family = AF_UNIX;
3735 req.r.udiag_states = f->states;
3736 req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
3737 if (show_mem)
3738 req.r.udiag_show |= UDIAG_SHOW_MEMINFO;
0bab7630
CW		 3739 if (show_details)
3740 req.r.udiag_show |= UDIAG_SHOW_VFS | UDIAG_SHOW_ICONS;
d8402b96 3741
8a4025f6 3742 return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock);
d8402b96
AV		 3743}
3744
d1f28cf1 3745static int unix_show(struct filter *f)
aba5acdf
SH		 3746{
3747 FILE *fp;
3748 char buf[256];
3749 char name[128];
3750 int newformat = 0;
3751 int cnt;
ec4d0d8a 3752 struct sockstat *list = NULL;
96d45daa
PS		 3753 const int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT,
3754 SS_ESTABLISHED, SS_CLOSING };
aba5acdf 3755
9db7bf15
VK		 3756 if (!filter_af_get(f, AF_UNIX))
3757 return 0;
3758
f25062e9
PS		 3759 if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT")
3760 && unix_show_netlink(f) == 0)
dfbaa90d
PE		 3761 return 0;
3762
ab01dbbb 3763 if ((fp = net_unix_open()) == NULL)
aba5acdf 3764 return -1;
61170fd8 3765 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 3766 fclose(fp);
3767 return -1;
3768 }
aba5acdf 3769
ae665a52 3770 if (memcmp(buf, "Peer", 4) == 0)
aba5acdf
SH		 3771 newformat = 1;
3772 cnt = 0;
3773
61170fd8 3774 while (fgets(buf, sizeof(buf), fp)) {
ec4d0d8a 3775 struct sockstat *u, **insp;
aba5acdf
SH		 3776 int flags;
3777
0ee9052f 3778 if (!(u = calloc(1, sizeof(*u))))
aba5acdf 3779 break;
aba5acdf
SH		 3780
3781 if (sscanf(buf, "%x: %x %x %x %x %x %d %s",
ec4d0d8a 3782 &u->rport, &u->rq, &u->wq, &flags, &u->type,
aba5acdf
SH		 3783 &u->state, &u->ino, name) < 8)
3784 name[0] = 0;
3785
ec4d0d8a
VK		 3786 u->lport = u->ino;
3787 u->local.family = u->remote.family = AF_UNIX;
3788
3789 if (flags & (1 << 16)) {
aba5acdf 3790 u->state = SS_LISTEN;
0aa03350
PS		 3791 } else if (u->state > 0 &&
3792 u->state <= ARRAY_SIZE(unix_state_map)) {
aba5acdf 3793 u->state = unix_state_map[u->state-1];
ec4d0d8a 3794 if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport)
aba5acdf
SH		 3795 u->state = SS_ESTABLISHED;
3796 }
2d0e538f
PS		 3797 if (unix_type_skip(u, f) ||
3798 !(f->states & (1 << u->state))) {
3799 free(u);
3800 continue;
3801 }
aba5acdf
SH		 3802
3803 if (!newformat) {
ec4d0d8a 3804 u->rport = 0;
aba5acdf
SH		 3805 u->rq = 0;
3806 u->wq = 0;
3807 }
3808
2d0e538f
PS		 3809 if (name[0]) {
3810 u->name = strdup(name);
46131577
PS		 3811 if (!u->name) {
3812 free(u);
2d0e538f 3813 break;
46131577 3814 }
2d0e538f
PS		 3815 }
3816
3817 if (u->rport) {
3818 struct sockstat *p;
3819
3820 for (p = list; p; p = p->next) {
3821 if (u->rport == p->lport)
3822 break;
3823 }
3824 if (!p)
3825 u->peer_name = "?";
3826 else
3827 u->peer_name = p->name ? : "*";
3828 }
3829
3830 if (f->f) {
3831 struct sockstat st = {
3832 .local.family = AF_UNIX,
3833 .remote.family = AF_UNIX,
3834 };
3835
3836 memcpy(st.local.data, &u->name, sizeof(u->name));
ebbb219c
AQ		 3837 /* when parsing the old format rport is set to 0 and
3838 * therefore peer_name remains NULL
3839 */
3840 if (u->peer_name && strcmp(u->peer_name, "*"))
2d0e538f
PS		 3841 memcpy(st.remote.data, &u->peer_name,
3842 sizeof(u->peer_name));
3843 if (run_ssfilter(f->f, &st) == 0) {
3844 free(u->name);
3845 free(u);
3846 continue;
3847 }
3848 }
3849
aba5acdf
SH		 3850 insp = &list;
3851 while (*insp) {
3852 if (u->type < (*insp)->type ||
3853 (u->type == (*insp)->type &&
3854 u->ino < (*insp)->ino))
3855 break;
3856 insp = &(*insp)->next;
3857 }
3858 u->next = *insp;
3859 *insp = u;
3860
aba5acdf 3861 if (++cnt > MAX_UNIX_REMEMBER) {
2d0e538f
PS		 3862 while (list) {
3863 unix_stats_print(list, f);
2d0e538f
PS		 3864 unix_list_drop_first(&list);
3865 }
aba5acdf
SH		 3866 cnt = 0;
3867 }
3868 }
a3fd8e58 3869 fclose(fp);
2d0e538f 3870 while (list) {
bf4ceee6 3871 unix_stats_print(list, f);
2d0e538f 3872 unix_list_drop_first(&list);
aba5acdf
SH		 3873 }
3874
3875 return 0;
3876}
3877
89f634f9 3878static int packet_stats_print(struct sockstat *s, const struct filter *f)
4a0053b6 3879{
b217df10
VK		 3880 const char *addr, *port;
3881 char ll_name[16];
372c30d2 3882
be7e4d20
PS		 3883 s->local.family = s->remote.family = AF_PACKET;
3884
4a0053b6 3885 if (f->f) {
89f634f9 3886 s->local.data[0] = s->prot;
89f634f9 3887 if (run_ssfilter(f->f, s) == 0)
4a0053b6
VK		 3888 return 1;
3889 }
372c30d2 3890
be7e4d20 3891 sock_state_print(s);
372c30d2 3892
b217df10
VK		 3893 if (s->prot == 3)
3894 addr = "*";
3895 else
3896 addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name));
3897
3898 if (s->iface == 0)
3899 port = "*";
3900 else
3901 port = xll_index_to_name(s->iface);
372c30d2 3902
b217df10
VK		 3903 sock_addr_print(addr, ":", port, NULL);
3904 sock_addr_print("", "*", "", NULL);
116ac927 3905
5f27ac1d 3906 proc_ctx_print(s);
116ac927 3907
f1b39e1b
VK		 3908 if (show_details)
3909 sock_details_print(s);
3910
4a0053b6
VK		 3911 return 0;
3912}
3913
2631b856
VK		 3914static void packet_show_ring(struct packet_diag_ring *ring)
3915{
90351722
SB		 3916 out("blk_size:%d", ring->pdr_block_size);
3917 out(",blk_nr:%d", ring->pdr_block_nr);
3918 out(",frm_size:%d", ring->pdr_frame_size);
3919 out(",frm_nr:%d", ring->pdr_frame_nr);
3920 out(",tmo:%d", ring->pdr_retire_tmo);
3921 out(",features:0x%x", ring->pdr_features);
2631b856
VK		 3922}
3923
cd554f2c 3924static int packet_show_sock(struct nlmsghdr *nlh, void *arg)
4a0053b6
VK		 3925{
3926 const struct filter *f = arg;
3927 struct packet_diag_msg *r = NLMSG_DATA(nlh);
2631b856
VK		 3928 struct packet_diag_info *pinfo = NULL;
3929 struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL;
4a0053b6 3930 struct rtattr *tb[PACKET_DIAG_MAX+1];
89f634f9 3931 struct sockstat stat = {};
2631b856
VK		 3932 uint32_t fanout = 0;
3933 bool has_fanout = false;
4a0053b6 3934
acd1e437 3935 parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr *)(r+1),
4a0053b6
VK		 3936 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
3937
3938 /* use /proc/net/packet if all info are not available */
3939 if (!tb[PACKET_DIAG_MEMINFO])
3940 return -1;
3941
2d791bc8
VK		 3942 stat.type = r->pdiag_type;
3943 stat.prot = r->pdiag_num;
3944 stat.ino = r->pdiag_ino;
3945 stat.state = SS_CLOSE;
f1b39e1b 3946 stat.sk = cookie_sk_get(&r->pdiag_cookie[0]);
4a0053b6
VK		 3947
3948 if (tb[PACKET_DIAG_MEMINFO]) {
3949 __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]);
acd1e437 3950
4a0053b6
VK		 3951 stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
3952 }
3953
3954 if (tb[PACKET_DIAG_INFO]) {
2631b856 3955 pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
2d791bc8 3956 stat.lport = stat.iface = pinfo->pdi_index;
4a0053b6
VK		 3957 }
3958
f1b39e1b 3959 if (tb[PACKET_DIAG_UID])
9f1370c0 3960 stat.uid = rta_getattr_u32(tb[PACKET_DIAG_UID]);
f1b39e1b 3961
2631b856
VK		 3962 if (tb[PACKET_DIAG_RX_RING])
3963 ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]);
3964
3965 if (tb[PACKET_DIAG_TX_RING])
3966 ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]);
3967
3968 if (tb[PACKET_DIAG_FANOUT]) {
3969 has_fanout = true;
9f1370c0 3970 fanout = rta_getattr_u32(tb[PACKET_DIAG_FANOUT]);
2631b856
VK		 3971 }
3972
4a0053b6
VK		 3973 if (packet_stats_print(&stat, f))
3974 return 0;
3975
2631b856
VK		 3976 if (show_details) {
3977 if (pinfo) {
296b5de7
JH		 3978 if (oneline)
3979 out(" ver:%d", pinfo->pdi_version);
3980 else
3981 out("\n\tver:%d", pinfo->pdi_version);
90351722
SB		 3982 out(" cpy_thresh:%d", pinfo->pdi_copy_thresh);
3983 out(" flags( ");
2631b856 3984 if (pinfo->pdi_flags & PDI_RUNNING)
90351722 3985 out("running");
2631b856 3986 if (pinfo->pdi_flags & PDI_AUXDATA)
90351722 3987 out(" auxdata");
2631b856 3988 if (pinfo->pdi_flags & PDI_ORIGDEV)
90351722 3989 out(" origdev");
2631b856 3990 if (pinfo->pdi_flags & PDI_VNETHDR)
90351722 3991 out(" vnethdr");
2631b856 3992 if (pinfo->pdi_flags & PDI_LOSS)
90351722 3993 out(" loss");
2631b856 3994 if (!pinfo->pdi_flags)
90351722
SB		 3995 out("0");
3996 out(" )");
2631b856
VK		 3997 }
3998 if (ring_rx) {
296b5de7
JH		 3999 if (oneline)
4000 out(" ring_rx(");
4001 else
4002 out("\n\tring_rx(");
2631b856 4003 packet_show_ring(ring_rx);
90351722 4004 out(")");
2631b856
VK		 4005 }
4006 if (ring_tx) {
296b5de7
JH		 4007 if (oneline)
4008 out(" ring_tx(");
4009 else
4010 out("\n\tring_tx(");
2631b856 4011 packet_show_ring(ring_tx);
90351722 4012 out(")");
2631b856
VK		 4013 }
4014 if (has_fanout) {
4015 uint16_t type = (fanout >> 16) & 0xffff;
4016
296b5de7
JH		 4017 if (oneline)
4018 out(" fanout(");
4019 else
4020 out("\n\tfanout(");
90351722
SB		 4021 out("id:%d,", fanout & 0xffff);
4022 out("type:");
2631b856
VK		 4023
4024 if (type == 0)
90351722 4025 out("hash");
2631b856 4026 else if (type == 1)
90351722 4027 out("lb");
2631b856 4028 else if (type == 2)
90351722 4029 out("cpu");
2631b856 4030 else if (type == 3)
90351722 4031 out("roll");
2631b856 4032 else if (type == 4)
90351722 4033 out("random");
2631b856 4034 else if (type == 5)
90351722 4035 out("qm");
2631b856 4036 else
90351722 4037 out("0x%x", type);
2631b856 4038
90351722 4039 out(")");
2631b856
VK		 4040 }
4041 }
4042
372c30d2
ND		 4043 if (show_bpf && tb[PACKET_DIAG_FILTER]) {
4044 struct sock_filter *fil =
4045 RTA_DATA(tb[PACKET_DIAG_FILTER]);
4046 int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) /
4047 sizeof(struct sock_filter);
4048
296b5de7
JH		 4049 if (oneline)
4050 out(" bpf filter (%d): ", num);
4051 else
4052 out("\n\tbpf filter (%d): ", num);
372c30d2 4053 while (num) {
90351722
SB		 4054 out(" 0x%02x %u %u %u,",
4055 fil->code, fil->jt, fil->jf, fil->k);
372c30d2
ND		 4056 num--;
4057 fil++;
4058 }
4059 }
430e05d3
RP		 4060
4061 if (show_mem)
4062 print_skmeminfo(tb, PACKET_DIAG_MEMINFO);
372c30d2
ND		 4063 return 0;
4064}
4065
8a4025f6 4066static int packet_show_netlink(struct filter *f)
372c30d2 4067{
5fb421d4 4068 DIAG_REQUEST(req, struct packet_diag_req r);
372c30d2 4069
372c30d2 4070 req.r.sdiag_family = AF_PACKET;
2631b856
VK		 4071 req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO |
4072 PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT;
372c30d2 4073
8a4025f6 4074 return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock);
372c30d2
ND		 4075}
4076
4a0053b6
VK		 4077static int packet_show_line(char *buf, const struct filter *f, int fam)
4078{
4079 unsigned long long sk;
89f634f9 4080 struct sockstat stat = {};
4a0053b6
VK		 4081 int type, prot, iface, state, rq, uid, ino;
4082
4083 sscanf(buf, "%llx %*d %d %x %d %d %u %u %u",
4084 &sk,
4085 &type, &prot, &iface, &state,
4086 &rq, &uid, &ino);
4087
4088 if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB)))
4089 return 0;
4090 if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB)))
4091 return 0;
4092
4093 stat.type = type;
4094 stat.prot = prot;
2d791bc8 4095 stat.lport = stat.iface = iface;
4a0053b6
VK		 4096 stat.state = state;
4097 stat.rq = rq;
4098 stat.uid = uid;
4099 stat.ino = ino;
2d791bc8
VK		 4100 stat.state = SS_CLOSE;
4101
4a0053b6
VK		 4102 if (packet_stats_print(&stat, f))
4103 return 0;
4104
4a0053b6
VK		 4105 return 0;
4106}
aba5acdf 4107
d1f28cf1 4108static int packet_show(struct filter *f)
aba5acdf
SH		 4109{
4110 FILE *fp;
b95d28c3 4111 int rc = 0;
3d0b7439 4112
9db7bf15 4113 if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE)))
b9ea445d 4114 return 0;
aba5acdf 4115
4a0053b6
VK		 4116 if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") &&
4117 packet_show_netlink(f) == 0)
372c30d2
ND		 4118 return 0;
4119
ab01dbbb 4120 if ((fp = net_packet_open()) == NULL)
aba5acdf 4121 return -1;
4a0053b6 4122 if (generic_record_read(fp, packet_show_line, f, AF_PACKET))
b95d28c3 4123 rc = -1;
aba5acdf 4124
b95d28c3
PS		 4125 fclose(fp);
4126 return rc;
aba5acdf
SH		 4127}
4128
2abc3d76
BT		 4129static int xdp_stats_print(struct sockstat *s, const struct filter *f)
4130{
4131 const char *addr, *port;
4132 char q_str[16];
4133
4134 s->local.family = s->remote.family = AF_XDP;
4135
4136 if (f->f) {
4137 if (run_ssfilter(f->f, s) == 0)
4138 return 1;
4139 }
4140
4141 sock_state_print(s);
4142
4143 if (s->iface) {
4144 addr = xll_index_to_name(s->iface);
4145 snprintf(q_str, sizeof(q_str), "q%d", s->lport);
4146 port = q_str;
4147 sock_addr_print(addr, ":", port, NULL);
4148 } else {
4149 sock_addr_print("", "*", "", NULL);
4150 }
4151
4152 sock_addr_print("", "*", "", NULL);
4153
4154 proc_ctx_print(s);
4155
4156 if (show_details)
4157 sock_details_print(s);
4158
4159 return 0;
4160}
4161
4162static void xdp_show_ring(const char *name, struct xdp_diag_ring *ring)
4163{
296b5de7
JH		 4164 if (oneline)
4165 out(" %s(", name);
4166 else
4167 out("\n\t%s(", name);
2abc3d76
BT		 4168 out("entries:%u", ring->entries);
4169 out(")");
4170}
4171
4172static void xdp_show_umem(struct xdp_diag_umem *umem, struct xdp_diag_ring *fr,
4173 struct xdp_diag_ring *cr)
4174{
296b5de7
JH		 4175 if (oneline)
4176 out(" tumem(");
4177 else
4178 out("\n\tumem(");
2abc3d76
BT		 4179 out("id:%u", umem->id);
4180 out(",size:%llu", umem->size);
4181 out(",num_pages:%u", umem->num_pages);
4182 out(",chunk_size:%u", umem->chunk_size);
4183 out(",headroom:%u", umem->headroom);
4184 out(",ifindex:%u", umem->ifindex);
4185 out(",qid:%u", umem->queue_id);
4186 out(",zc:%u", umem->flags & XDP_DU_F_ZEROCOPY);
4187 out(",refs:%u", umem->refs);
4188 out(")");
4189
4190 if (fr)
4191 xdp_show_ring("fr", fr);
4192 if (cr)
4193 xdp_show_ring("cr", cr);
4194}
4195
4196static int xdp_show_sock(struct nlmsghdr *nlh, void *arg)
4197{
4198 struct xdp_diag_ring *rx = NULL, *tx = NULL, *fr = NULL, *cr = NULL;
4199 struct xdp_diag_msg *msg = NLMSG_DATA(nlh);
4200 struct rtattr *tb[XDP_DIAG_MAX + 1];
4201 struct xdp_diag_info *info = NULL;
4202 struct xdp_diag_umem *umem = NULL;
4203 const struct filter *f = arg;
4204 struct sockstat stat = {};
4205
4206 parse_rtattr(tb, XDP_DIAG_MAX, (struct rtattr *)(msg + 1),
4207 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*msg)));
4208
4209 stat.type = msg->xdiag_type;
4210 stat.ino = msg->xdiag_ino;
4211 stat.state = SS_CLOSE;
4212 stat.sk = cookie_sk_get(&msg->xdiag_cookie[0]);
4213
4214 if (tb[XDP_DIAG_INFO]) {
4215 info = RTA_DATA(tb[XDP_DIAG_INFO]);
4216 stat.iface = info->ifindex;
4217 stat.lport = info->queue_id;
4218 }
4219
4220 if (tb[XDP_DIAG_UID])
4221 stat.uid = rta_getattr_u32(tb[XDP_DIAG_UID]);
4222 if (tb[XDP_DIAG_RX_RING])
4223 rx = RTA_DATA(tb[XDP_DIAG_RX_RING]);
4224 if (tb[XDP_DIAG_TX_RING])
4225 tx = RTA_DATA(tb[XDP_DIAG_TX_RING]);
4226 if (tb[XDP_DIAG_UMEM])
4227 umem = RTA_DATA(tb[XDP_DIAG_UMEM]);
4228 if (tb[XDP_DIAG_UMEM_FILL_RING])
4229 fr = RTA_DATA(tb[XDP_DIAG_UMEM_FILL_RING]);
4230 if (tb[XDP_DIAG_UMEM_COMPLETION_RING])
4231 cr = RTA_DATA(tb[XDP_DIAG_UMEM_COMPLETION_RING]);
4232 if (tb[XDP_DIAG_MEMINFO]) {
4233 __u32 *skmeminfo = RTA_DATA(tb[XDP_DIAG_MEMINFO]);
4234
4235 stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
4236 }
4237
4238 if (xdp_stats_print(&stat, f))
4239 return 0;
4240
4241 if (show_details) {
4242 if (rx)
4243 xdp_show_ring("rx", rx);
4244 if (tx)
4245 xdp_show_ring("tx", tx);
4246 if (umem)
4247 xdp_show_umem(umem, fr, cr);
4248 }
4249
4250 if (show_mem)
4251 print_skmeminfo(tb, XDP_DIAG_MEMINFO); // really?
4252
4253
4254 return 0;
4255}
4256
4257static int xdp_show(struct filter *f)
4258{
4259 DIAG_REQUEST(req, struct xdp_diag_req r);
4260
4261 if (!filter_af_get(f, AF_XDP) || !(f->states & (1 << SS_CLOSE)))
4262 return 0;
4263
4264 req.r.sdiag_family = AF_XDP;
4265 req.r.xdiag_show = XDP_SHOW_INFO | XDP_SHOW_RING_CFG | XDP_SHOW_UMEM |
4266 XDP_SHOW_MEMINFO;
4267
4268 return handle_netlink_request(f, &req.nlh, sizeof(req), xdp_show_sock);
4269}
4270
5f24ec0e 4271static int netlink_show_one(struct filter *f,
acd1e437
SH		 4272 int prot, int pid, unsigned int groups,
4273 int state, int dst_pid, unsigned int dst_group,
129709ae
AV		 4274 int rq, int wq,
4275 unsigned long long sk, unsigned long long cb)
4276{
301826be
PS		 4277 struct sockstat st = {
4278 .state = SS_CLOSE,
4279 .rq = rq,
4280 .wq = wq,
4281 .local.family = AF_NETLINK,
4282 .remote.family = AF_NETLINK,
4283 };
acd1e437 4284
b217df10
VK		 4285 SPRINT_BUF(prot_buf) = {};
4286 const char *prot_name;
4287 char procname[64] = {};
eef43b50 4288
129709ae 4289 if (f->f) {
055840f2
VK		 4290 st.rport = -1;
4291 st.lport = pid;
4292 st.local.data[0] = prot;
055840f2 4293 if (run_ssfilter(f->f, &st) == 0)
5f24ec0e 4294 return 1;
129709ae
AV		 4295 }
4296
be7e4d20 4297 sock_state_print(&st);
eef43b50 4298
b217df10
VK		 4299 if (resolve_services)
4300 prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf));
4301 else
4302 prot_name = int_to_str(prot, prot_buf);
eef43b50 4303
129709ae 4304 if (pid == -1) {
b217df10 4305 procname[0] = '*';
129709ae
AV		 4306 } else if (resolve_services) {
4307 int done = 0;
acd1e437 4308
129709ae
AV		 4309 if (!pid) {
4310 done = 1;
da8034a0 4311 strncpy(procname, "kernel", 7);
129709ae 4312 } else if (pid > 0) {
129709ae 4313 FILE *fp;
acd1e437 4314
0ee9052f 4315 snprintf(procname, sizeof(procname), "%s/%d/stat",
129709ae
AV		 4316 getenv("PROC_ROOT") ? : "/proc", pid);
4317 if ((fp = fopen(procname, "r")) != NULL) {
4318 if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
0ee9052f 4319 snprintf(procname+strlen(procname),
4320 sizeof(procname)-strlen(procname),
4321 "/%d", pid);
129709ae
AV		 4322 done = 1;
4323 }
4324 fclose(fp);
4325 }
4326 }
4327 if (!done)
b217df10 4328 int_to_str(pid, procname);
129709ae 4329 } else {
b217df10 4330 int_to_str(pid, procname);
129709ae 4331 }
f271fe01 4332
b217df10
VK		 4333 sock_addr_print(prot_name, ":", procname, NULL);
4334
f271fe01 4335 if (state == NETLINK_CONNECTED) {
b217df10
VK		 4336 char dst_group_buf[30];
4337 char dst_pid_buf[30];
acd1e437 4338
b217df10
VK		 4339 sock_addr_print(int_to_str(dst_group, dst_group_buf), ":",
4340 int_to_str(dst_pid, dst_pid_buf), NULL);
f271fe01 4341 } else {
b217df10 4342 sock_addr_print("", "*", "", NULL);
f271fe01 4343 }
129709ae 4344
116ac927 4345 char *pid_context = NULL;
acd1e437 4346
116ac927
RH		 4347 if (show_proc_ctx) {
4348 /* The pid value will either be:
4349 * 0 if destination kernel - show kernel initial context.
4350 * A valid process pid - use getpidcon.
4351 * A unique value allocated by the kernel or netlink user
4352 * to the process - show context as "not available".
4353 */
4354 if (!pid)
4355 security_get_initial_context("kernel", &pid_context);
4356 else if (pid > 0)
4357 getpidcon(pid, &pid_context);
4358
90351722 4359 out(" proc_ctx=%s", pid_context ? : "unavailable");
22658ff5 4360 free(pid_context);
116ac927
RH		 4361 }
4362
129709ae 4363 if (show_details) {
90351722 4364 out(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups);
129709ae 4365 }
129709ae 4366
5f24ec0e 4367 return 0;
129709ae
AV		 4368}
4369
cd554f2c 4370static int netlink_show_sock(struct nlmsghdr *nlh, void *arg)
ecb928c8 4371{
8a4025f6 4372 struct filter *f = (struct filter *)arg;
ecb928c8
AV		 4373 struct netlink_diag_msg *r = NLMSG_DATA(nlh);
4374 struct rtattr *tb[NETLINK_DIAG_MAX+1];
4375 int rq = 0, wq = 0;
4376 unsigned long groups = 0;
4377
acd1e437 4378 parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr *)(r+1),
ecb928c8
AV		 4379 nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
4380
4381 if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS]))
4382 groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]);
4383
4384 if (tb[NETLINK_DIAG_MEMINFO]) {
4385 const __u32 *skmeminfo;
acd1e437 4386
ecb928c8
AV		 4387 skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]);
4388
4389 rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
4390 wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC];
4391 }
4392
5f24ec0e 4393 if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups,
ecb928c8 4394 r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group,
5f24ec0e
VK		 4395 rq, wq, 0, 0)) {
4396 return 0;
4397 }
ecb928c8
AV		 4398
4399 if (show_mem) {
90351722 4400 out("\t");
ecb928c8 4401 print_skmeminfo(tb, NETLINK_DIAG_MEMINFO);
ecb928c8
AV		 4402 }
4403
4404 return 0;
4405}
4406
8a4025f6 4407static int netlink_show_netlink(struct filter *f)
ecb928c8 4408{
5fb421d4 4409 DIAG_REQUEST(req, struct netlink_diag_req r);
ecb928c8
AV		 4410
4411 req.r.sdiag_family = AF_NETLINK;
4412 req.r.sdiag_protocol = NDIAG_PROTO_ALL;
4413 req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO;
4414
8a4025f6 4415 return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock);
ecb928c8
AV		 4416}
4417
d1f28cf1 4418static int netlink_show(struct filter *f)
aba5acdf
SH		 4419{
4420 FILE *fp;
4421 char buf[256];
4422 int prot, pid;
acd1e437 4423 unsigned int groups;
aba5acdf
SH		 4424 int rq, wq, rc;
4425 unsigned long long sk, cb;
4426
9db7bf15 4427 if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE)))
b9ea445d
VK		 4428 return 0;
4429
129709ae 4430 if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
8a4025f6 4431 netlink_show_netlink(f) == 0)
129709ae
AV		 4432 return 0;
4433
ab01dbbb 4434 if ((fp = net_netlink_open()) == NULL)
aba5acdf 4435 return -1;
61170fd8 4436 if (!fgets(buf, sizeof(buf), fp)) {
d572ed4d
PS		 4437 fclose(fp);
4438 return -1;
4439 }
aba5acdf 4440
61170fd8 4441 while (fgets(buf, sizeof(buf), fp)) {
aba5acdf
SH		 4442 sscanf(buf, "%llx %d %d %x %d %d %llx %d",
4443 &sk,
4444 &prot, &pid, &groups, &rq, &wq, &cb, &rc);
4445
f271fe01 4446 netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb);
aba5acdf
SH		 4447 }
4448
b95d28c3 4449 fclose(fp);
aba5acdf
SH		 4450 return 0;
4451}
4452
c759116a
SH		 4453static bool vsock_type_skip(struct sockstat *s, struct filter *f)
4454{
4455 if (s->type == SOCK_STREAM && !(f->dbs & (1 << VSOCK_ST_DB)))
4456 return true;
4457 if (s->type == SOCK_DGRAM && !(f->dbs & (1 << VSOCK_DG_DB)))
4458 return true;
4459 return false;
4460}
4461
4462static void vsock_addr_print(inet_prefix *a, __u32 port)
4463{
4464 char cid_str[sizeof("4294967295")];
4465 char port_str[sizeof("4294967295")];
4466 __u32 cid;
4467
4468 memcpy(&cid, a->data, sizeof(cid));
4469
4470 if (cid == ~(__u32)0)
4471 snprintf(cid_str, sizeof(cid_str), "*");
4472 else
4473 snprintf(cid_str, sizeof(cid_str), "%u", cid);
4474
4475 if (port == ~(__u32)0)
4476 snprintf(port_str, sizeof(port_str), "*");
4477 else
4478 snprintf(port_str, sizeof(port_str), "%u", port);
4479
4480 sock_addr_print(cid_str, ":", port_str, NULL);
4481}
4482
4483static void vsock_stats_print(struct sockstat *s, struct filter *f)
4484{
4485 sock_state_print(s);
4486
4487 vsock_addr_print(&s->local, s->lport);
4488 vsock_addr_print(&s->remote, s->rport);
4489
4490 proc_ctx_print(s);
c759116a
SH		 4491}
4492
cd554f2c 4493static int vsock_show_sock(struct nlmsghdr *nlh, void *arg)
c759116a
SH		 4494{
4495 struct filter *f = (struct filter *)arg;
4496 struct vsock_diag_msg *r = NLMSG_DATA(nlh);
4497 struct sockstat stat = {
4498 .type = r->vdiag_type,
4499 .lport = r->vdiag_src_port,
4500 .rport = r->vdiag_dst_port,
4501 .state = r->vdiag_state,
4502 .ino = r->vdiag_ino,
4503 };
4504
4505 vsock_set_inet_prefix(&stat.local, r->vdiag_src_cid);
4506 vsock_set_inet_prefix(&stat.remote, r->vdiag_dst_cid);
4507
4508 if (vsock_type_skip(&stat, f))
4509 return 0;
4510
4511 if (f->f && run_ssfilter(f->f, &stat) == 0)
4512 return 0;
4513
4514 vsock_stats_print(&stat, f);
4515
4516 return 0;
4517}
4518
4519static int vsock_show(struct filter *f)
4520{
4521 DIAG_REQUEST(req, struct vsock_diag_req r);
4522
4523 if (!filter_af_get(f, AF_VSOCK))
4524 return 0;
4525
4526 req.r.sdiag_family = AF_VSOCK;
4527 req.r.vdiag_states = f->states;
4528
4529 return handle_netlink_request(f, &req.nlh, sizeof(req), vsock_show_sock);
4530}
4531
5caf79a0
GM		 4532static void tipc_sock_addr_print(struct rtattr *net_addr, struct rtattr *id)
4533{
4534 uint32_t node = rta_getattr_u32(net_addr);
4535 uint32_t identity = rta_getattr_u32(id);
4536
4537 SPRINT_BUF(addr) = {};
4538 SPRINT_BUF(port) = {};
4539
4540 sprintf(addr, "%u", node);
4541 sprintf(port, "%u", identity);
4542 sock_addr_print(addr, ":", port, NULL);
4543
4544}
4545
cd554f2c 4546static int tipc_show_sock(struct nlmsghdr *nlh, void *arg)
5caf79a0
GM		 4547{
4548 struct rtattr *stat[TIPC_NLA_SOCK_STAT_MAX + 1] = {};
4549 struct rtattr *attrs[TIPC_NLA_SOCK_MAX + 1] = {};
4550 struct rtattr *con[TIPC_NLA_CON_MAX + 1] = {};
4551 struct rtattr *info[TIPC_NLA_MAX + 1] = {};
4552 struct rtattr *msg_ref;
4553 struct sockstat ss = {};
4554
4555 parse_rtattr(info, TIPC_NLA_MAX, NLMSG_DATA(nlh),
4556 NLMSG_PAYLOAD(nlh, 0));
4557
4558 if (!info[TIPC_NLA_SOCK])
4559 return 0;
4560
4561 msg_ref = info[TIPC_NLA_SOCK];
4562 parse_rtattr(attrs, TIPC_NLA_SOCK_MAX, RTA_DATA(msg_ref),
4563 RTA_PAYLOAD(msg_ref));
4564
4565 msg_ref = attrs[TIPC_NLA_SOCK_STAT];
4566 parse_rtattr(stat, TIPC_NLA_SOCK_STAT_MAX,
4567 RTA_DATA(msg_ref), RTA_PAYLOAD(msg_ref));
4568
4569
4570 ss.local.family = AF_TIPC;
4571 ss.type = rta_getattr_u32(attrs[TIPC_NLA_SOCK_TYPE]);
4572 ss.state = rta_getattr_u32(attrs[TIPC_NLA_SOCK_TIPC_STATE]);
4573 ss.uid = rta_getattr_u32(attrs[TIPC_NLA_SOCK_UID]);
4574 ss.ino = rta_getattr_u32(attrs[TIPC_NLA_SOCK_INO]);
4575 ss.rq = rta_getattr_u32(stat[TIPC_NLA_SOCK_STAT_RCVQ]);
4576 ss.wq = rta_getattr_u32(stat[TIPC_NLA_SOCK_STAT_SENDQ]);
4577 ss.sk = rta_getattr_u64(attrs[TIPC_NLA_SOCK_COOKIE]);
4578
4579 sock_state_print (&ss);
4580
4581 tipc_sock_addr_print(attrs[TIPC_NLA_SOCK_ADDR],
4582 attrs[TIPC_NLA_SOCK_REF]);
4583
4584 msg_ref = attrs[TIPC_NLA_SOCK_CON];
4585 if (msg_ref) {
4586 parse_rtattr(con, TIPC_NLA_CON_MAX,
4587 RTA_DATA(msg_ref), RTA_PAYLOAD(msg_ref));
4588
4589 tipc_sock_addr_print(con[TIPC_NLA_CON_NODE],
4590 con[TIPC_NLA_CON_SOCK]);
4591 } else
4592 sock_addr_print("", "-", "", NULL);
4593
4594 if (show_details)
4595 sock_details_print(&ss);
4596
4597 proc_ctx_print(&ss);
4598
4599 if (show_tipcinfo) {
296b5de7
JH		 4600 if (oneline)
4601 out(" type:%s", stype_nameg[ss.type]);
4602 else
4603 out("\n type:%s", stype_nameg[ss.type]);
5caf79a0
GM		 4604 out(" cong:%s ",
4605 stat[TIPC_NLA_SOCK_STAT_LINK_CONG] ? "link" :
4606 stat[TIPC_NLA_SOCK_STAT_CONN_CONG] ? "conn" : "none");
4607 out(" drop:%d ",
4608 rta_getattr_u32(stat[TIPC_NLA_SOCK_STAT_DROP]));
4609
4610 if (attrs[TIPC_NLA_SOCK_HAS_PUBL])
4611 out(" publ");
4612
4613 if (con[TIPC_NLA_CON_FLAG])
4614 out(" via {%u,%u} ",
4615 rta_getattr_u32(con[TIPC_NLA_CON_TYPE]),
4616 rta_getattr_u32(con[TIPC_NLA_CON_INST]));
4617 }
4618
4619 return 0;
4620}
4621
4622static int tipc_show(struct filter *f)
4623{
4624 DIAG_REQUEST(req, struct tipc_sock_diag_req r);
4625
4626 memset(&req.r, 0, sizeof(req.r));
4627 req.r.sdiag_family = AF_TIPC;
4628 req.r.tidiag_states = f->states;
4629
4630 return handle_netlink_request(f, &req.nlh, sizeof(req), tipc_show_sock);
4631}
4632
6885e3bf
CG		 4633struct sock_diag_msg {
4634 __u8 sdiag_family;
4635};
4636
cd554f2c 4637static int generic_show_sock(struct nlmsghdr *nlh, void *arg)
6885e3bf
CG		 4638{
4639 struct sock_diag_msg *r = NLMSG_DATA(nlh);
4640 struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX };
32ea3d54 4641 int ret;
6885e3bf
CG		 4642
4643 switch (r->sdiag_family) {
4644 case AF_INET:
4645 case AF_INET6:
97352f1b 4646 inet_arg.rth = inet_arg.f->rth_for_killing;
cd554f2c 4647 ret = show_one_inet_sock(nlh, &inet_arg);
32ea3d54 4648 break;
6885e3bf 4649 case AF_UNIX:
cd554f2c 4650 ret = unix_show_sock(nlh, arg);
32ea3d54 4651 break;
6885e3bf 4652 case AF_PACKET:
cd554f2c 4653 ret = packet_show_sock(nlh, arg);
32ea3d54 4654 break;
6885e3bf 4655 case AF_NETLINK:
cd554f2c 4656 ret = netlink_show_sock(nlh, arg);
32ea3d54 4657 break;
c759116a 4658 case AF_VSOCK:
cd554f2c 4659 ret = vsock_show_sock(nlh, arg);
32ea3d54 4660 break;
2abc3d76
BT		 4661 case AF_XDP:
4662 ret = xdp_show_sock(nlh, arg);
4663 break;
6885e3bf 4664 default:
32ea3d54 4665 ret = -1;
6885e3bf 4666 }
32ea3d54
SB		 4667
4668 render();
4669
4670 return ret;
6885e3bf
CG		 4671}
4672
4673static int handle_follow_request(struct filter *f)
4674{
6b224dad 4675 int ret = 0;
6885e3bf 4676 int groups = 0;
97352f1b 4677 struct rtnl_handle rth, rth2;
6885e3bf 4678
b338a3e7 4679 if (f->families & FAMILY_MASK(AF_INET) && f->dbs & (1 << TCP_DB))
6885e3bf 4680 groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1);
b338a3e7 4681 if (f->families & FAMILY_MASK(AF_INET) && f->dbs & (1 << UDP_DB))
6885e3bf 4682 groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1);
b338a3e7 4683 if (f->families & FAMILY_MASK(AF_INET6) && f->dbs & (1 << TCP_DB))
6885e3bf 4684 groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1);
b338a3e7 4685 if (f->families & FAMILY_MASK(AF_INET6) && f->dbs & (1 << UDP_DB))
6885e3bf
CG		 4686 groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1);
4687
4688 if (groups == 0)
4689 return -1;
4690
4691 if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG))
4692 return -1;
4693
4694 rth.dump = 0;
4695 rth.local.nl_pid = 0;
4696
97352f1b
MY		 4697 if (f->kill) {
4698 if (rtnl_open_byproto(&rth2, groups, NETLINK_SOCK_DIAG)) {
4699 rtnl_close(&rth);
4700 return -1;
4701 }
4702 f->rth_for_killing = &rth2;
4703 }
4704
6885e3bf 4705 if (rtnl_dump_filter(&rth, generic_show_sock, f))
6b224dad 4706 ret = -1;
6885e3bf 4707
6885e3bf 4708 rtnl_close(&rth);
97352f1b
MY		 4709 if (f->rth_for_killing)
4710 rtnl_close(f->rth_for_killing);
6885e3bf
CG		 4711 return ret;
4712}
4713
d1f28cf1 4714static int get_snmp_int(char *proto, char *key, int *result)
aba5acdf
SH		 4715{
4716 char buf[1024];
4717 FILE *fp;
4718 int protolen = strlen(proto);
4719 int keylen = strlen(key);
4720
4721 *result = 0;
4722
ab01dbbb 4723 if ((fp = net_snmp_open()) == NULL)
aba5acdf
SH		 4724 return -1;
4725
4726 while (fgets(buf, sizeof(buf), fp) != NULL) {
4727 char *p = buf;
4728 int pos = 0;
acd1e437 4729
aba5acdf
SH		 4730 if (memcmp(buf, proto, protolen))
4731 continue;
4732 while ((p = strchr(p, ' ')) != NULL) {
4733 pos++;
4734 p++;
4735 if (memcmp(p, key, keylen) == 0 &&
4736 (p[keylen] == ' ' || p[keylen] == '\n'))
4737 break;
4738 }
4739 if (fgets(buf, sizeof(buf), fp) == NULL)
4740 break;
4741 if (memcmp(buf, proto, protolen))
4742 break;
4743 p = buf;
4744 while ((p = strchr(p, ' ')) != NULL) {
4745 p++;
4746 if (--pos == 0) {
4747 sscanf(p, "%d", result);
4748 fclose(fp);
4749 return 0;
4750 }
4751 }
4752 }
4753
4754 fclose(fp);
4755 errno = ESRCH;
4756 return -1;
4757}
4758
4759
4760/* Get stats from sockstat */
4761
acd1e437 4762struct ssummary {
aba5acdf
SH		 4763 int socks;
4764 int tcp_mem;
4765 int tcp_total;
4766 int tcp_orphans;
4767 int tcp_tws;
4768 int tcp4_hashed;
4769 int udp4;
4770 int raw4;
4771 int frag4;
4772 int frag4_mem;
4773 int tcp6_hashed;
4774 int udp6;
4775 int raw6;
4776 int frag6;
4777 int frag6_mem;
4778};
4779
055840f2 4780static void get_sockstat_line(char *line, struct ssummary *s)
aba5acdf
SH		 4781{
4782 char id[256], rem[256];
4783
4784 if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2)
4785 return;
4786
4787 if (strcmp(id, "sockets:") == 0)
4788 sscanf(rem, "%*s%d", &s->socks);
4789 else if (strcmp(id, "UDP:") == 0)
4790 sscanf(rem, "%*s%d", &s->udp4);
4791 else if (strcmp(id, "UDP6:") == 0)
4792 sscanf(rem, "%*s%d", &s->udp6);
4793 else if (strcmp(id, "RAW:") == 0)
4794 sscanf(rem, "%*s%d", &s->raw4);
4795 else if (strcmp(id, "RAW6:") == 0)
4796 sscanf(rem, "%*s%d", &s->raw6);
4797 else if (strcmp(id, "TCP6:") == 0)
4798 sscanf(rem, "%*s%d", &s->tcp6_hashed);
4799 else if (strcmp(id, "FRAG:") == 0)
4800 sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem);
4801 else if (strcmp(id, "FRAG6:") == 0)
4802 sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem);
4803 else if (strcmp(id, "TCP:") == 0)
4804 sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d",
4805 &s->tcp4_hashed,
4806 &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem);
4807}
4808
055840f2 4809static int get_sockstat(struct ssummary *s)
aba5acdf
SH		 4810{
4811 char buf[256];
4812 FILE *fp;
4813
4814 memset(s, 0, sizeof(*s));
4815
ab01dbbb 4816 if ((fp = net_sockstat_open()) == NULL)
aba5acdf 4817 return -1;
acd1e437 4818 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 4819 get_sockstat_line(buf, s);
4820 fclose(fp);
4821
ab01dbbb 4822 if ((fp = net_sockstat6_open()) == NULL)
aba5acdf 4823 return 0;
acd1e437 4824 while (fgets(buf, sizeof(buf), fp) != NULL)
aba5acdf
SH		 4825 get_sockstat_line(buf, s);
4826 fclose(fp);
4827
4828 return 0;
4829}
4830
d1f28cf1 4831static int print_summary(void)
aba5acdf 4832{
055840f2 4833 struct ssummary s;
2f938ce1 4834 int tcp_estab;
aba5acdf
SH		 4835
4836 if (get_sockstat(&s) < 0)
4837 perror("ss: get_sockstat");
2f938ce1 4838 if (get_snmp_int("Tcp:", "CurrEstab", &tcp_estab) < 0)
aba5acdf
SH		 4839 perror("ss: get_snmpstat");
4840
10f68773 4841 printf("Total: %d\n", s.socks);
aba5acdf 4842
10f68773
SH		 4843 printf("TCP: %d (estab %d, closed %d, orphaned %d, timewait %d)\n",
4844 s.tcp_total + s.tcp_tws, tcp_estab,
4845 s.tcp_total - (s.tcp4_hashed + s.tcp6_hashed - s.tcp_tws),
4846 s.tcp_orphans, s.tcp_tws);
aba5acdf
SH		 4847
4848 printf("\n");
4849 printf("Transport Total IP IPv6\n");
aba5acdf
SH		 4850 printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6);
4851 printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6);
4852 printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed);
ae665a52 4853 printf("INET %-9d %-9d %-9d\n",
aba5acdf
SH		 4854 s.raw4+s.udp4+s.tcp4_hashed+
4855 s.raw6+s.udp6+s.tcp6_hashed,
4856 s.raw4+s.udp4+s.tcp4_hashed,
4857 s.raw6+s.udp6+s.tcp6_hashed);
4858 printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6);
4859
4860 printf("\n");
4861
4862 return 0;
4863}
4864
7a96e199 4865static void _usage(FILE *dest)
aba5acdf 4866{
7a96e199 4867 fprintf(dest,
aba5acdf
SH		 4868"Usage: ss [ OPTIONS ]\n"
4869" ss [ OPTIONS ] [ FILTER ]\n"
ff041f16
VK		 4870" -h, --help this message\n"
4871" -V, --version output version information\n"
4872" -n, --numeric don't resolve service names\n"
ab61159a 4873" -r, --resolve resolve host names\n"
ff041f16
VK		 4874" -a, --all display all sockets\n"
4875" -l, --listening display listening sockets\n"
ab61159a
SH		 4876" -o, --options show timer information\n"
4877" -e, --extended show detailed socket information\n"
4878" -m, --memory show socket memory usage\n"
ff041f16
VK		 4879" -p, --processes show process using socket\n"
4880" -i, --info show internal TCP information\n"
5caf79a0 4881" --tipcinfo show internal tipc socket information\n"
ff041f16 4882" -s, --summary show socket usage summary\n"
0f3f0ca3 4883" --tos show tos and priority information\n"
b0f01cf6 4884" -b, --bpf show bpf filter socket information\n"
6885e3bf 4885" -E, --events continually display sockets as they are destroyed\n"
ff041f16
VK		 4886" -Z, --context display process SELinux security contexts\n"
4887" -z, --contexts display process and socket SELinux security contexts\n"
95ce04bc 4888" -N, --net switch to the specified network namespace name\n"
ab61159a
SH		 4889"\n"
4890" -4, --ipv4 display only IP version 4 sockets\n"
4891" -6, --ipv6 display only IP version 6 sockets\n"
ff041f16
VK		 4892" -0, --packet display PACKET sockets\n"
4893" -t, --tcp display only TCP sockets\n"
f89d46ad 4894" -S, --sctp display only SCTP sockets\n"
ff041f16
VK		 4895" -u, --udp display only UDP sockets\n"
4896" -d, --dccp display only DCCP sockets\n"
4897" -w, --raw display only RAW sockets\n"
4898" -x, --unix display only Unix domain sockets\n"
5caf79a0 4899" --tipc display only TIPC sockets\n"
c759116a 4900" --vsock display only vsock sockets\n"
ab61159a 4901" -f, --family=FAMILY display sockets of type FAMILY\n"
2abc3d76 4902" FAMILY := {inet|inet6|link|unix|netlink|vsock|tipc|xdp|help}\n"
ab61159a 4903"\n"
fb2594c1 4904" -K, --kill forcibly close sockets, display what was closed\n"
7a4559f6 4905" -H, --no-header Suppress header line\n"
296b5de7 4906" -O, --oneline socket's data printed on a single line\n"
fb2594c1 4907"\n"
583de149 4908" -A, --query=QUERY, --socket=QUERY\n"
5caf79a0 4909" QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink|vsock_stream|vsock_dgram|tipc}[,QUERY]\n"
ab61159a 4910"\n"
583de149 4911" -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
ab61159a 4912" -F, --filter=FILE read filter information from FILE\n"
ff041f16
VK		 4913" FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n"
4914" STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n"
ae4e21c9 4915" TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listening|closing}\n"
ff041f16
VK		 4916" connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
4917" synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n"
4918" bucket := {syn-recv|time-wait}\n"
ae4e21c9 4919" big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listening|closing}\n"
ab61159a 4920 );
7a96e199
AH		 4921}
4922
4923static void help(void) __attribute__((noreturn));
4924static void help(void)
4925{
4926 _usage(stdout);
4927 exit(0);
4928}
4929
4930static void usage(void) __attribute__((noreturn));
4931static void usage(void)
4932{
4933 _usage(stderr);
aba5acdf
SH		 4934 exit(-1);
4935}
4936
4937
d1f28cf1 4938static int scan_state(const char *state)
aba5acdf 4939{
b710a722
PS		 4940 static const char * const sstate_namel[] = {
4941 "UNKNOWN",
4942 [SS_ESTABLISHED] = "established",
4943 [SS_SYN_SENT] = "syn-sent",
4944 [SS_SYN_RECV] = "syn-recv",
4945 [SS_FIN_WAIT1] = "fin-wait-1",
4946 [SS_FIN_WAIT2] = "fin-wait-2",
4947 [SS_TIME_WAIT] = "time-wait",
4948 [SS_CLOSE] = "unconnected",
4949 [SS_CLOSE_WAIT] = "close-wait",
4950 [SS_LAST_ACK] = "last-ack",
4951 [SS_LISTEN] = "listening",
4952 [SS_CLOSING] = "closing",
4953 };
aba5acdf 4954 int i;
acd1e437 4955
aba5acdf
SH		 4956 if (strcasecmp(state, "close") == 0 ||
4957 strcasecmp(state, "closed") == 0)
4958 return (1<<SS_CLOSE);
4959 if (strcasecmp(state, "syn-rcv") == 0)
4960 return (1<<SS_SYN_RECV);
1a5bad5a 4961 if (strcasecmp(state, "established") == 0)
aba5acdf
SH		 4962 return (1<<SS_ESTABLISHED);
4963 if (strcasecmp(state, "all") == 0)
4964 return SS_ALL;
4965 if (strcasecmp(state, "connected") == 0)
4966 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN));
1a5bad5a 4967 if (strcasecmp(state, "synchronized") == 0)
aba5acdf
SH		 4968 return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT));
4969 if (strcasecmp(state, "bucket") == 0)
4970 return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT);
4971 if (strcasecmp(state, "big") == 0)
4972 return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT));
acd1e437 4973 for (i = 0; i < SS_MAX; i++) {
1a5bad5a 4974 if (strcasecmp(state, sstate_namel[i]) == 0)
aba5acdf
SH		 4975 return (1<<i);
4976 }
9db7bf15
VK		 4977
4978 fprintf(stderr, "ss: wrong state name: %s\n", state);
4979 exit(-1);
aba5acdf
SH		 4980}
4981
c759116a
SH		 4982/* Values 'v' and 'V' are already used so a non-character is used */
4983#define OPT_VSOCK 256
4984
5caf79a0
GM		 4985/* Values of 't' are already used so a non-character is used */
4986#define OPT_TIPCSOCK 257
4987#define OPT_TIPCINFO 258
4988
0f3f0ca3
KK		 4989#define OPT_TOS 259
4990
2abc3d76 4991/* Values of 'x' are already used so a non-character is used */
9f78e995 4992#define OPT_XDPSOCK 260
2abc3d76 4993
ab61159a
SH		 4994static const struct option long_opts[] = {
4995 { "numeric", 0, 0, 'n' },
4996 { "resolve", 0, 0, 'r' },
4997 { "options", 0, 0, 'o' },
4998 { "extended", 0, 0, 'e' },
4999 { "memory", 0, 0, 'm' },
5000 { "info", 0, 0, 'i' },
5001 { "processes", 0, 0, 'p' },
372c30d2 5002 { "bpf", 0, 0, 'b' },
6885e3bf 5003 { "events", 0, 0, 'E' },
351efcde 5004 { "dccp", 0, 0, 'd' },
ab61159a 5005 { "tcp", 0, 0, 't' },
f89d46ad 5006 { "sctp", 0, 0, 'S' },
ab61159a
SH		 5007 { "udp", 0, 0, 'u' },
5008 { "raw", 0, 0, 'w' },
5009 { "unix", 0, 0, 'x' },
5caf79a0 5010 { "tipc", 0, 0, OPT_TIPCSOCK},
c759116a 5011 { "vsock", 0, 0, OPT_VSOCK },
ab61159a
SH		 5012 { "all", 0, 0, 'a' },
5013 { "listening", 0, 0, 'l' },
5014 { "ipv4", 0, 0, '4' },
5015 { "ipv6", 0, 0, '6' },
5016 { "packet", 0, 0, '0' },
5017 { "family", 1, 0, 'f' },
5018 { "socket", 1, 0, 'A' },
583de149 5019 { "query", 1, 0, 'A' },
c3f346b0 5020 { "summary", 0, 0, 's' },
583de149 5021 { "diag", 1, 0, 'D' },
ab61159a
SH		 5022 { "filter", 1, 0, 'F' },
5023 { "version", 0, 0, 'V' },
5024 { "help", 0, 0, 'h' },
116ac927
RH		 5025 { "context", 0, 0, 'Z' },
5026 { "contexts", 0, 0, 'z' },
95ce04bc 5027 { "net", 1, 0, 'N' },
5caf79a0 5028 { "tipcinfo", 0, 0, OPT_TIPCINFO},
0f3f0ca3 5029 { "tos", 0, 0, OPT_TOS },
fb2594c1 5030 { "kill", 0, 0, 'K' },
7a4559f6 5031 { "no-header", 0, 0, 'H' },
2abc3d76 5032 { "xdp", 0, 0, OPT_XDPSOCK},
296b5de7 5033 { "oneline", 0, 0, 'O' },
ab61159a 5034 { 0 }
ae665a52 5035
ab61159a
SH		 5036};
5037
aba5acdf
SH		 5038int main(int argc, char *argv[])
5039{
aba5acdf
SH		 5040 int saw_states = 0;
5041 int saw_query = 0;
5042 int do_summary = 0;
7d105b56 5043 const char *dump_tcpdiag = NULL;
aba5acdf
SH		 5044 FILE *filter_fp = NULL;
5045 int ch;
9db7bf15 5046 int state_filter = 0;
aba5acdf 5047
168d97f9 5048 while ((ch = getopt_long(argc, argv,
296b5de7 5049 "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHSO",
ab61159a 5050 long_opts, NULL)) != EOF) {
acd1e437 5051 switch (ch) {
aba5acdf
SH		 5052 case 'n':
5053 resolve_services = 0;
5054 break;
5055 case 'r':
5056 resolve_hosts = 1;
5057 break;
5058 case 'o':
5059 show_options = 1;
5060 break;
5061 case 'e':
5062 show_options = 1;
5063 show_details++;
5064 break;
5065 case 'm':
5066 show_mem = 1;
5067 break;
5068 case 'i':
5069 show_tcpinfo = 1;
5070 break;
5071 case 'p':
5072 show_users++;
fbc0f876 5073 user_ent_hash_build();
aba5acdf 5074 break;
372c30d2
ND		 5075 case 'b':
5076 show_options = 1;
5077 show_bpf++;
5078 break;
6885e3bf
CG		 5079 case 'E':
5080 follow_events = 1;
5081 break;
351efcde 5082 case 'd':
c121111e 5083 filter_db_set(&current_filter, DCCP_DB, true);
351efcde 5084 break;
aba5acdf 5085 case 't':
c121111e 5086 filter_db_set(&current_filter, TCP_DB, true);
aba5acdf 5087 break;
f89d46ad 5088 case 'S':
c121111e 5089 filter_db_set(&current_filter, SCTP_DB, true);
f89d46ad 5090 break;
aba5acdf 5091 case 'u':
c121111e 5092 filter_db_set(&current_filter, UDP_DB, true);
aba5acdf
SH		 5093 break;
5094 case 'w':
c121111e 5095 filter_db_set(&current_filter, RAW_DB, true);
aba5acdf
SH		 5096 break;
5097 case 'x':
9db7bf15 5098 filter_af_set(&current_filter, AF_UNIX);
aba5acdf 5099 break;
c759116a
SH		 5100 case OPT_VSOCK:
5101 filter_af_set(&current_filter, AF_VSOCK);
5102 break;
5caf79a0
GM		 5103 case OPT_TIPCSOCK:
5104 filter_af_set(&current_filter, AF_TIPC);
5105 break;
aba5acdf 5106 case 'a':
9db7bf15 5107 state_filter = SS_ALL;
aba5acdf
SH		 5108 break;
5109 case 'l':
9db7bf15 5110 state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE);
aba5acdf
SH		 5111 break;
5112 case '4':
9db7bf15 5113 filter_af_set(&current_filter, AF_INET);
aba5acdf
SH		 5114 break;
5115 case '6':
9db7bf15 5116 filter_af_set(&current_filter, AF_INET6);
aba5acdf
SH		 5117 break;
5118 case '0':
9db7bf15 5119 filter_af_set(&current_filter, AF_PACKET);
aba5acdf 5120 break;
2abc3d76
BT		 5121 case OPT_XDPSOCK:
5122 filter_af_set(&current_filter, AF_XDP);
5123 break;
aba5acdf
SH		 5124 case 'f':
5125 if (strcmp(optarg, "inet") == 0)
9db7bf15 5126 filter_af_set(&current_filter, AF_INET);
aba5acdf 5127 else if (strcmp(optarg, "inet6") == 0)
9db7bf15 5128 filter_af_set(&current_filter, AF_INET6);
aba5acdf 5129 else if (strcmp(optarg, "link") == 0)
9db7bf15 5130 filter_af_set(&current_filter, AF_PACKET);
aba5acdf 5131 else if (strcmp(optarg, "unix") == 0)
9db7bf15 5132 filter_af_set(&current_filter, AF_UNIX);
aba5acdf 5133 else if (strcmp(optarg, "netlink") == 0)
9db7bf15 5134 filter_af_set(&current_filter, AF_NETLINK);
5caf79a0
GM		 5135 else if (strcmp(optarg, "tipc") == 0)
5136 filter_af_set(&current_filter, AF_TIPC);
c759116a
SH		 5137 else if (strcmp(optarg, "vsock") == 0)
5138 filter_af_set(&current_filter, AF_VSOCK);
2abc3d76
BT		 5139 else if (strcmp(optarg, "xdp") == 0)
5140 filter_af_set(&current_filter, AF_XDP);
aba5acdf 5141 else if (strcmp(optarg, "help") == 0)
7a96e199 5142 help();
aba5acdf 5143 else {
9db7bf15
VK		 5144 fprintf(stderr, "ss: \"%s\" is invalid family\n",
5145 optarg);
aba5acdf
SH		 5146 usage();
5147 }
5148 break;
5149 case 'A':
5150 {
5151 char *p, *p1;
acd1e437 5152
aba5acdf
SH		 5153 if (!saw_query) {
5154 current_filter.dbs = 0;
7f9dddbe 5155 state_filter = state_filter ?
acd1e437 5156 state_filter : SS_CONN;
aba5acdf
SH		 5157 saw_query = 1;
5158 do_default = 0;
5159 }
5160 p = p1 = optarg;
5161 do {
5162 if ((p1 = strchr(p, ',')) != NULL)
ae665a52 5163 *p1 = 0;
67d5fd55 5164 if (filter_db_parse(&current_filter, p)) {
aba5acdf
SH		 5165 fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p);
5166 usage();
5167 }
5168 p = p1 + 1;
5169 } while (p1);
5170 break;
5171 }
5172 case 's':
5173 do_summary = 1;
5174 break;
5175 case 'D':
5176 dump_tcpdiag = optarg;
5177 break;
5178 case 'F':
5179 if (filter_fp) {
5180 fprintf(stderr, "More than one filter file\n");
5181 exit(-1);
5182 }
5183 if (optarg[0] == '-')
5184 filter_fp = stdin;
5185 else
5186 filter_fp = fopen(optarg, "r");
5187 if (!filter_fp) {
5188 perror("fopen filter file");
5189 exit(-1);
5190 }
5191 break;
5192 case 'v':
5193 case 'V':
5194 printf("ss utility, iproute2-ss%s\n", SNAPSHOT);
5195 exit(0);
116ac927
RH		 5196 case 'z':
5197 show_sock_ctx++;
36df1a6e 5198 /* fall through */
116ac927
RH		 5199 case 'Z':
5200 if (is_selinux_enabled() <= 0) {
5201 fprintf(stderr, "ss: SELinux is not enabled.\n");
5202 exit(1);
5203 }
5204 show_proc_ctx++;
5205 user_ent_hash_build();
5206 break;
95ce04bc
VK		 5207 case 'N':
5208 if (netns_switch(optarg))
5209 exit(1);
5210 break;
5caf79a0
GM		 5211 case OPT_TIPCINFO:
5212 show_tipcinfo = 1;
5213 break;
0f3f0ca3
KK		 5214 case OPT_TOS:
5215 show_tos = 1;
5216 break;
fb2594c1
LC		 5217 case 'K':
5218 current_filter.kill = 1;
5219 break;
7a4559f6
DA		 5220 case 'H':
5221 show_header = 0;
5222 break;
296b5de7
JH		 5223 case 'O':
5224 oneline = 1;
5225 break;
aba5acdf 5226 case 'h':
7a96e199 5227 help();
f73105ab 5228 case '?':
aba5acdf
SH		 5229 default:
5230 usage();
5231 }
5232 }
5233
5234 argc -= optind;
5235 argv += optind;
5236
aba5acdf
SH		 5237 if (do_summary) {
5238 print_summary();
5239 if (do_default && argc == 0)
5240 exit(0);
5241 }
5242
aba5acdf
SH		 5243 while (argc > 0) {
5244 if (strcmp(*argv, "state") == 0) {
5245 NEXT_ARG();
5246 if (!saw_states)
9db7bf15
VK		 5247 state_filter = 0;
5248 state_filter |= scan_state(*argv);
aba5acdf
SH		 5249 saw_states = 1;
5250 } else if (strcmp(*argv, "exclude") == 0 ||
5251 strcmp(*argv, "excl") == 0) {
5252 NEXT_ARG();
5253 if (!saw_states)
9db7bf15
VK		 5254 state_filter = SS_ALL;
5255 state_filter &= ~scan_state(*argv);
aba5acdf
SH		 5256 saw_states = 1;
5257 } else {
aba5acdf
SH		 5258 break;
5259 }
5260 argc--; argv++;
5261 }
5262
9db7bf15
VK		 5263 if (do_default) {
5264 state_filter = state_filter ? state_filter : SS_CONN;
3e1652c9 5265 filter_db_parse(&current_filter, "all");
9db7bf15
VK		 5266 }
5267
57ff5a10
VK		 5268 filter_states_set(&current_filter, state_filter);
5269 filter_merge_defaults(&current_filter);
5270
9db7bf15 5271 if (resolve_services && resolve_hosts &&
168d97f9 5272 (current_filter.dbs & (UNIX_DBM|INET_L4_DBM)))
9db7bf15
VK		 5273 init_service_resolver();
5274
9db7bf15
VK		 5275 if (current_filter.dbs == 0) {
5276 fprintf(stderr, "ss: no socket tables to show with such filter.\n");
5277 exit(0);
5278 }
5279 if (current_filter.families == 0) {
5280 fprintf(stderr, "ss: no families to show with such filter.\n");
5281 exit(0);
5282 }
aba5acdf
SH		 5283 if (current_filter.states == 0) {
5284 fprintf(stderr, "ss: no socket states to show with such filter.\n");
5285 exit(0);
5286 }
5287
5288 if (dump_tcpdiag) {
5289 FILE *dump_fp = stdout;
acd1e437 5290
aba5acdf
SH		 5291 if (!(current_filter.dbs & (1<<TCP_DB))) {
5292 fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n");
5293 exit(0);
5294 }
5295 if (dump_tcpdiag[0] != '-') {
5296 dump_fp = fopen(dump_tcpdiag, "w");
5297 if (!dump_tcpdiag) {
5298 perror("fopen dump file");
5299 exit(-1);
5300 }
5301 }
3fe5b534 5302 inet_show_netlink(&current_filter, dump_fp, IPPROTO_TCP);
aba5acdf
SH		 5303 fflush(dump_fp);
5304 exit(0);
5305 }
5306
1527a17e
VK		 5307 if (ssfilter_parse(&current_filter.f, argc, argv, filter_fp))
5308 usage();
5309
87b1a7ae
SB		 5310 if (!(current_filter.dbs & (current_filter.dbs - 1)))
5311 columns[COL_NETID].disabled = 1;
59f46b7b 5312
87b1a7ae
SB		 5313 if (!(current_filter.states & (current_filter.states - 1)))
5314 columns[COL_STATE].disabled = 1;
aba5acdf 5315
59f46b7b
SB		 5316 if (show_header)
5317 print_header();
aba5acdf 5318
aba5acdf
SH		 5319 fflush(stdout);
5320
6885e3bf
CG		 5321 if (follow_events)
5322 exit(handle_follow_request(&current_filter));
5323
aba5acdf
SH		 5324 if (current_filter.dbs & (1<<NETLINK_DB))
5325 netlink_show(&current_filter);
5326 if (current_filter.dbs & PACKET_DBM)
5327 packet_show(&current_filter);
5328 if (current_filter.dbs & UNIX_DBM)
5329 unix_show(&current_filter);
5330 if (current_filter.dbs & (1<<RAW_DB))
5331 raw_show(&current_filter);
5332 if (current_filter.dbs & (1<<UDP_DB))
5333 udp_show(&current_filter);
5334 if (current_filter.dbs & (1<<TCP_DB))
6c6bbc30 5335 tcp_show(&current_filter);
351efcde 5336 if (current_filter.dbs & (1<<DCCP_DB))
6c6bbc30 5337 dccp_show(&current_filter);
f89d46ad
PS		 5338 if (current_filter.dbs & (1<<SCTP_DB))
5339 sctp_show(&current_filter);
c759116a
SH		 5340 if (current_filter.dbs & VSOCK_DBM)
5341 vsock_show(&current_filter);
5caf79a0
GM		 5342 if (current_filter.dbs & (1<<TIPC_DB))
5343 tipc_show(&current_filter);
2abc3d76
BT		 5344 if (current_filter.dbs & (1<<XDP_DB))
5345 xdp_show(&current_filter);
116ac927
RH		 5346
5347 if (show_users || show_proc_ctx || show_sock_ctx)
5348 user_ent_destroy();
5349
32ea3d54 5350 render();
59f46b7b 5351
aba5acdf
SH		 5352 return 0;
5353}
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