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Commit | Line | Data |
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b9de3ecf | 1 | /* |
aba5acdf SH |
2 | * ss.c "sockstat", socket statistics |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version | |
7 | * 2 of the License, or (at your option) any later version. | |
8 | * | |
9 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> | |
10 | */ | |
11 | ||
12 | #include <stdio.h> | |
13 | #include <stdlib.h> | |
14 | #include <unistd.h> | |
15 | #include <syslog.h> | |
16 | #include <fcntl.h> | |
17 | #include <sys/ioctl.h> | |
18 | #include <sys/socket.h> | |
19 | #include <sys/uio.h> | |
20 | #include <netinet/in.h> | |
21 | #include <string.h> | |
22 | #include <errno.h> | |
23 | #include <netdb.h> | |
24 | #include <arpa/inet.h> | |
aba5acdf SH |
25 | #include <dirent.h> |
26 | #include <fnmatch.h> | |
ab61159a | 27 | #include <getopt.h> |
bf4ceee6 | 28 | #include <stdbool.h> |
aba5acdf SH |
29 | |
30 | #include "utils.h" | |
31 | #include "rt_names.h" | |
32 | #include "ll_map.h" | |
33 | #include "libnetlink.h" | |
95ce04bc | 34 | #include "namespace.h" |
aba5acdf SH |
35 | #include "SNAPSHOT.h" |
36 | ||
9cb1eccf | 37 | #include <linux/tcp.h> |
f6062360 | 38 | #include <linux/sock_diag.h> |
351efcde | 39 | #include <linux/inet_diag.h> |
dfbaa90d | 40 | #include <linux/unix_diag.h> |
372c30d2 ND |
41 | #include <linux/netdevice.h> /* for MAX_ADDR_LEN */ |
42 | #include <linux/filter.h> | |
43 | #include <linux/packet_diag.h> | |
ecb928c8 | 44 | #include <linux/netlink_diag.h> |
aba5acdf | 45 | |
8a4025f6 | 46 | #define MAGIC_SEQ 123456 |
47 | ||
5fb421d4 | 48 | #define DIAG_REQUEST(_req, _r) \ |
49 | struct { \ | |
50 | struct nlmsghdr nlh; \ | |
51 | _r; \ | |
52 | } _req = { \ | |
53 | .nlh = { \ | |
54 | .nlmsg_type = SOCK_DIAG_BY_FAMILY, \ | |
55 | .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\ | |
8a4025f6 | 56 | .nlmsg_seq = MAGIC_SEQ, \ |
5fb421d4 | 57 | .nlmsg_len = sizeof(_req), \ |
58 | }, \ | |
59 | } | |
60 | ||
116ac927 RH |
61 | #if HAVE_SELINUX |
62 | #include <selinux/selinux.h> | |
63 | #else | |
64 | /* Stubs for SELinux functions */ | |
65 | static int is_selinux_enabled(void) | |
66 | { | |
67 | return -1; | |
68 | } | |
69 | ||
70 | static int getpidcon(pid_t pid, char **context) | |
71 | { | |
72 | *context = NULL; | |
73 | return -1; | |
74 | } | |
75 | ||
76 | static int getfilecon(char *path, char **context) | |
77 | { | |
78 | *context = NULL; | |
79 | return -1; | |
80 | } | |
81 | ||
82 | static int security_get_initial_context(char *name, char **context) | |
83 | { | |
84 | *context = NULL; | |
85 | return -1; | |
86 | } | |
87 | #endif | |
88 | ||
aba5acdf SH |
89 | int resolve_hosts = 0; |
90 | int resolve_services = 1; | |
91 | int preferred_family = AF_UNSPEC; | |
92 | int show_options = 0; | |
93 | int show_details = 0; | |
94 | int show_users = 0; | |
95 | int show_mem = 0; | |
96 | int show_tcpinfo = 0; | |
372c30d2 | 97 | int show_bpf = 0; |
116ac927 RH |
98 | int show_proc_ctx = 0; |
99 | int show_sock_ctx = 0; | |
100 | /* If show_users & show_proc_ctx only do user_ent_hash_build() once */ | |
101 | int user_ent_hash_build_init = 0; | |
6885e3bf | 102 | int follow_events = 0; |
aba5acdf SH |
103 | |
104 | int netid_width; | |
105 | int state_width; | |
106 | int addrp_width; | |
107 | int addr_width; | |
108 | int serv_width; | |
109 | int screen_width; | |
110 | ||
111 | static const char *TCP_PROTO = "tcp"; | |
112 | static const char *UDP_PROTO = "udp"; | |
113 | static const char *RAW_PROTO = "raw"; | |
114 | static const char *dg_proto = NULL; | |
115 | ||
116 | enum | |
117 | { | |
118 | TCP_DB, | |
351efcde | 119 | DCCP_DB, |
aba5acdf SH |
120 | UDP_DB, |
121 | RAW_DB, | |
122 | UNIX_DG_DB, | |
123 | UNIX_ST_DB, | |
30b669d7 | 124 | UNIX_SQ_DB, |
aba5acdf SH |
125 | PACKET_DG_DB, |
126 | PACKET_R_DB, | |
127 | NETLINK_DB, | |
128 | MAX_DB | |
129 | }; | |
130 | ||
131 | #define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB)) | |
30b669d7 | 132 | #define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB)) |
aba5acdf | 133 | #define ALL_DB ((1<<MAX_DB)-1) |
9db7bf15 | 134 | #define INET_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<RAW_DB)) |
aba5acdf SH |
135 | |
136 | enum { | |
7d105b56 SH |
137 | SS_UNKNOWN, |
138 | SS_ESTABLISHED, | |
139 | SS_SYN_SENT, | |
140 | SS_SYN_RECV, | |
141 | SS_FIN_WAIT1, | |
142 | SS_FIN_WAIT2, | |
143 | SS_TIME_WAIT, | |
144 | SS_CLOSE, | |
145 | SS_CLOSE_WAIT, | |
146 | SS_LAST_ACK, | |
147 | SS_LISTEN, | |
148 | SS_CLOSING, | |
149 | SS_MAX | |
aba5acdf SH |
150 | }; |
151 | ||
9db7bf15 VK |
152 | #define SS_ALL ((1 << SS_MAX) - 1) |
153 | #define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV))) | |
aba5acdf SH |
154 | |
155 | #include "ssfilter.h" | |
156 | ||
157 | struct filter | |
158 | { | |
159 | int dbs; | |
160 | int states; | |
161 | int families; | |
162 | struct ssfilter *f; | |
163 | }; | |
164 | ||
9db7bf15 VK |
165 | static const struct filter default_dbs[MAX_DB] = { |
166 | [TCP_DB] = { | |
167 | .states = SS_CONN, | |
168 | .families = (1 << AF_INET) | (1 << AF_INET6), | |
169 | }, | |
170 | [DCCP_DB] = { | |
171 | .states = SS_CONN, | |
172 | .families = (1 << AF_INET) | (1 << AF_INET6), | |
173 | }, | |
174 | [UDP_DB] = { | |
f42a4574 | 175 | .states = (1 << SS_ESTABLISHED), |
9db7bf15 VK |
176 | .families = (1 << AF_INET) | (1 << AF_INET6), |
177 | }, | |
178 | [RAW_DB] = { | |
f42a4574 | 179 | .states = (1 << SS_ESTABLISHED), |
9db7bf15 VK |
180 | .families = (1 << AF_INET) | (1 << AF_INET6), |
181 | }, | |
182 | [UNIX_DG_DB] = { | |
183 | .states = (1 << SS_CLOSE), | |
184 | .families = (1 << AF_UNIX), | |
185 | }, | |
186 | [UNIX_ST_DB] = { | |
187 | .states = SS_CONN, | |
188 | .families = (1 << AF_UNIX), | |
189 | }, | |
190 | [UNIX_SQ_DB] = { | |
191 | .states = SS_CONN, | |
192 | .families = (1 << AF_UNIX), | |
193 | }, | |
194 | [PACKET_DG_DB] = { | |
195 | .states = (1 << SS_CLOSE), | |
196 | .families = (1 << AF_PACKET), | |
197 | }, | |
198 | [PACKET_R_DB] = { | |
199 | .states = (1 << SS_CLOSE), | |
200 | .families = (1 << AF_PACKET), | |
201 | }, | |
202 | [NETLINK_DB] = { | |
203 | .states = (1 << SS_CLOSE), | |
204 | .families = (1 << AF_NETLINK), | |
205 | }, | |
aba5acdf SH |
206 | }; |
207 | ||
9db7bf15 VK |
208 | static const struct filter default_afs[AF_MAX] = { |
209 | [AF_INET] = { | |
210 | .dbs = INET_DBM, | |
211 | .states = SS_CONN, | |
212 | }, | |
213 | [AF_INET6] = { | |
214 | .dbs = INET_DBM, | |
215 | .states = SS_CONN, | |
216 | }, | |
217 | [AF_UNIX] = { | |
218 | .dbs = UNIX_DBM, | |
219 | .states = SS_CONN, | |
220 | }, | |
221 | [AF_PACKET] = { | |
222 | .dbs = PACKET_DBM, | |
223 | .states = (1 << SS_CLOSE), | |
224 | }, | |
225 | [AF_NETLINK] = { | |
226 | .dbs = (1 << NETLINK_DB), | |
227 | .states = (1 << SS_CLOSE), | |
228 | }, | |
229 | }; | |
230 | ||
231 | static int do_default = 1; | |
232 | static struct filter current_filter; | |
233 | ||
234 | static void filter_db_set(struct filter *f, int db) | |
235 | { | |
236 | f->states |= default_dbs[db].states; | |
9db7bf15 VK |
237 | f->dbs |= 1 << db; |
238 | do_default = 0; | |
239 | } | |
240 | ||
241 | static void filter_af_set(struct filter *f, int af) | |
242 | { | |
1527a17e VK |
243 | f->states |= default_afs[af].states; |
244 | f->families |= 1 << af; | |
245 | do_default = 0; | |
246 | preferred_family = af; | |
9db7bf15 VK |
247 | } |
248 | ||
249 | static int filter_af_get(struct filter *f, int af) | |
250 | { | |
251 | return f->families & (1 << af); | |
252 | } | |
253 | ||
254 | static void filter_default_dbs(struct filter *f) | |
255 | { | |
256 | filter_db_set(f, UDP_DB); | |
257 | filter_db_set(f, DCCP_DB); | |
258 | filter_db_set(f, TCP_DB); | |
259 | filter_db_set(f, RAW_DB); | |
260 | filter_db_set(f, UNIX_ST_DB); | |
261 | filter_db_set(f, UNIX_DG_DB); | |
262 | filter_db_set(f, UNIX_SQ_DB); | |
263 | filter_db_set(f, PACKET_R_DB); | |
264 | filter_db_set(f, PACKET_DG_DB); | |
265 | filter_db_set(f, NETLINK_DB); | |
266 | } | |
267 | ||
57ff5a10 | 268 | static void filter_states_set(struct filter *f, int states) |
9db7bf15 | 269 | { |
57ff5a10 VK |
270 | if (states) |
271 | f->states = (f->states | states) & states; | |
272 | } | |
9db7bf15 | 273 | |
57ff5a10 VK |
274 | static void filter_merge_defaults(struct filter *f) |
275 | { | |
276 | int db; | |
277 | int af; | |
9db7bf15 | 278 | |
57ff5a10 VK |
279 | for (db = 0; db < MAX_DB; db++) { |
280 | if (!(f->dbs & (1 << db))) | |
281 | continue; | |
9db7bf15 | 282 | |
57ff5a10 VK |
283 | if (!(default_dbs[db].families & f->families)) |
284 | f->families |= default_dbs[db].families; | |
285 | } | |
286 | for (af = 0; af < AF_MAX; af++) { | |
287 | if (!(f->families & (1 << af))) | |
288 | continue; | |
289 | ||
290 | if (!(default_afs[af].dbs & f->dbs)) | |
291 | f->dbs |= default_afs[af].dbs; | |
292 | } | |
9db7bf15 | 293 | } |
aba5acdf | 294 | |
ab01dbbb | 295 | static FILE *generic_proc_open(const char *env, const char *name) |
aba5acdf | 296 | { |
ab01dbbb | 297 | const char *p = getenv(env); |
aba5acdf | 298 | char store[128]; |
ab01dbbb | 299 | |
aba5acdf SH |
300 | if (!p) { |
301 | p = getenv("PROC_ROOT") ? : "/proc"; | |
302 | snprintf(store, sizeof(store)-1, "%s/%s", p, name); | |
303 | p = store; | |
304 | } | |
ab01dbbb SH |
305 | |
306 | return fopen(p, "r"); | |
aba5acdf SH |
307 | } |
308 | ||
ab01dbbb | 309 | static FILE *net_tcp_open(void) |
aba5acdf SH |
310 | { |
311 | return generic_proc_open("PROC_NET_TCP", "net/tcp"); | |
312 | } | |
313 | ||
ab01dbbb | 314 | static FILE *net_tcp6_open(void) |
aba5acdf SH |
315 | { |
316 | return generic_proc_open("PROC_NET_TCP6", "net/tcp6"); | |
317 | } | |
318 | ||
ab01dbbb | 319 | static FILE *net_udp_open(void) |
aba5acdf SH |
320 | { |
321 | return generic_proc_open("PROC_NET_UDP", "net/udp"); | |
322 | } | |
323 | ||
ab01dbbb | 324 | static FILE *net_udp6_open(void) |
aba5acdf SH |
325 | { |
326 | return generic_proc_open("PROC_NET_UDP6", "net/udp6"); | |
327 | } | |
328 | ||
ab01dbbb | 329 | static FILE *net_raw_open(void) |
aba5acdf SH |
330 | { |
331 | return generic_proc_open("PROC_NET_RAW", "net/raw"); | |
332 | } | |
333 | ||
ab01dbbb | 334 | static FILE *net_raw6_open(void) |
aba5acdf SH |
335 | { |
336 | return generic_proc_open("PROC_NET_RAW6", "net/raw6"); | |
337 | } | |
338 | ||
ab01dbbb | 339 | static FILE *net_unix_open(void) |
aba5acdf SH |
340 | { |
341 | return generic_proc_open("PROC_NET_UNIX", "net/unix"); | |
342 | } | |
343 | ||
ab01dbbb | 344 | static FILE *net_packet_open(void) |
aba5acdf SH |
345 | { |
346 | return generic_proc_open("PROC_NET_PACKET", "net/packet"); | |
347 | } | |
348 | ||
ab01dbbb | 349 | static FILE *net_netlink_open(void) |
aba5acdf SH |
350 | { |
351 | return generic_proc_open("PROC_NET_NETLINK", "net/netlink"); | |
352 | } | |
353 | ||
ab01dbbb | 354 | static FILE *slabinfo_open(void) |
aba5acdf SH |
355 | { |
356 | return generic_proc_open("PROC_SLABINFO", "slabinfo"); | |
357 | } | |
358 | ||
ab01dbbb | 359 | static FILE *net_sockstat_open(void) |
aba5acdf SH |
360 | { |
361 | return generic_proc_open("PROC_NET_SOCKSTAT", "net/sockstat"); | |
362 | } | |
363 | ||
ab01dbbb | 364 | static FILE *net_sockstat6_open(void) |
aba5acdf SH |
365 | { |
366 | return generic_proc_open("PROC_NET_SOCKSTAT6", "net/sockstat6"); | |
367 | } | |
368 | ||
ab01dbbb | 369 | static FILE *net_snmp_open(void) |
aba5acdf SH |
370 | { |
371 | return generic_proc_open("PROC_NET_SNMP", "net/snmp"); | |
372 | } | |
373 | ||
ab01dbbb | 374 | static FILE *ephemeral_ports_open(void) |
aba5acdf SH |
375 | { |
376 | return generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", "sys/net/ipv4/ip_local_port_range"); | |
377 | } | |
378 | ||
fbc0f876 SF |
379 | struct user_ent { |
380 | struct user_ent *next; | |
381 | unsigned int ino; | |
382 | int pid; | |
383 | int fd; | |
116ac927 RH |
384 | char *process; |
385 | char *process_ctx; | |
386 | char *socket_ctx; | |
fbc0f876 SF |
387 | }; |
388 | ||
389 | #define USER_ENT_HASH_SIZE 256 | |
390 | struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE]; | |
391 | ||
392 | static int user_ent_hashfn(unsigned int ino) | |
aba5acdf | 393 | { |
fbc0f876 | 394 | int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino; |
aba5acdf | 395 | |
fbc0f876 SF |
396 | return val & (USER_ENT_HASH_SIZE - 1); |
397 | } | |
398 | ||
116ac927 RH |
399 | static void user_ent_add(unsigned int ino, char *process, |
400 | int pid, int fd, | |
401 | char *proc_ctx, | |
402 | char *sock_ctx) | |
fbc0f876 SF |
403 | { |
404 | struct user_ent *p, **pp; | |
aba5acdf | 405 | |
116ac927 RH |
406 | p = malloc(sizeof(struct user_ent)); |
407 | if (!p) { | |
408 | fprintf(stderr, "ss: failed to malloc buffer\n"); | |
fbc0f876 | 409 | abort(); |
116ac927 | 410 | } |
fbc0f876 SF |
411 | p->next = NULL; |
412 | p->ino = ino; | |
413 | p->pid = pid; | |
414 | p->fd = fd; | |
116ac927 RH |
415 | p->process = strdup(process); |
416 | p->process_ctx = strdup(proc_ctx); | |
417 | p->socket_ctx = strdup(sock_ctx); | |
fbc0f876 SF |
418 | |
419 | pp = &user_ent_hash[user_ent_hashfn(ino)]; | |
420 | p->next = *pp; | |
421 | *pp = p; | |
422 | } | |
aba5acdf | 423 | |
116ac927 RH |
424 | static void user_ent_destroy(void) |
425 | { | |
426 | struct user_ent *p, *p_next; | |
427 | int cnt = 0; | |
428 | ||
429 | while (cnt != USER_ENT_HASH_SIZE) { | |
430 | p = user_ent_hash[cnt]; | |
431 | while (p) { | |
432 | free(p->process); | |
433 | free(p->process_ctx); | |
434 | free(p->socket_ctx); | |
435 | p_next = p->next; | |
436 | free(p); | |
437 | p = p_next; | |
438 | } | |
439 | cnt++; | |
440 | } | |
441 | } | |
442 | ||
fbc0f876 SF |
443 | static void user_ent_hash_build(void) |
444 | { | |
445 | const char *root = getenv("PROC_ROOT") ? : "/proc/"; | |
446 | struct dirent *d; | |
447 | char name[1024]; | |
448 | int nameoff; | |
449 | DIR *dir; | |
116ac927 RH |
450 | char *pid_context; |
451 | char *sock_context; | |
452 | const char *no_ctx = "unavailable"; | |
453 | ||
454 | /* If show_users & show_proc_ctx set only do this once */ | |
455 | if (user_ent_hash_build_init != 0) | |
456 | return; | |
457 | ||
458 | user_ent_hash_build_init = 1; | |
fbc0f876 SF |
459 | |
460 | strcpy(name, root); | |
461 | if (strlen(name) == 0 || name[strlen(name)-1] != '/') | |
aba5acdf | 462 | strcat(name, "/"); |
fbc0f876 | 463 | |
aba5acdf | 464 | nameoff = strlen(name); |
fbc0f876 SF |
465 | |
466 | dir = opendir(name); | |
467 | if (!dir) | |
468 | return; | |
aba5acdf SH |
469 | |
470 | while ((d = readdir(dir)) != NULL) { | |
aba5acdf | 471 | struct dirent *d1; |
aba5acdf | 472 | char process[16]; |
116ac927 | 473 | char *p; |
fbc0f876 SF |
474 | int pid, pos; |
475 | DIR *dir1; | |
476 | char crap; | |
aba5acdf SH |
477 | |
478 | if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1) | |
479 | continue; | |
480 | ||
116ac927 RH |
481 | if (getpidcon(pid, &pid_context) != 0) |
482 | pid_context = strdup(no_ctx); | |
483 | ||
fbc0f876 | 484 | sprintf(name + nameoff, "%d/fd/", pid); |
aba5acdf SH |
485 | pos = strlen(name); |
486 | if ((dir1 = opendir(name)) == NULL) | |
487 | continue; | |
488 | ||
fbc0f876 | 489 | process[0] = '\0'; |
116ac927 | 490 | p = process; |
aba5acdf SH |
491 | |
492 | while ((d1 = readdir(dir1)) != NULL) { | |
fbc0f876 SF |
493 | const char *pattern = "socket:["; |
494 | unsigned int ino; | |
aba5acdf | 495 | char lnk[64]; |
18445b3e | 496 | int fd; |
788731b3 | 497 | ssize_t link_len; |
116ac927 | 498 | char tmp[1024]; |
aba5acdf SH |
499 | |
500 | if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1) | |
501 | continue; | |
502 | ||
503 | sprintf(name+pos, "%d", fd); | |
788731b3 TJ |
504 | |
505 | link_len = readlink(name, lnk, sizeof(lnk)-1); | |
506 | if (link_len == -1) | |
507 | continue; | |
508 | lnk[link_len] = '\0'; | |
509 | ||
510 | if (strncmp(lnk, pattern, strlen(pattern))) | |
aba5acdf SH |
511 | continue; |
512 | ||
fbc0f876 | 513 | sscanf(lnk, "socket:[%u]", &ino); |
aba5acdf | 514 | |
116ac927 RH |
515 | snprintf(tmp, sizeof(tmp), "%s/%d/fd/%s", |
516 | root, pid, d1->d_name); | |
517 | ||
518 | if (getfilecon(tmp, &sock_context) <= 0) | |
519 | sock_context = strdup(no_ctx); | |
520 | ||
521 | if (*p == '\0') { | |
aba5acdf | 522 | FILE *fp; |
fbc0f876 | 523 | |
116ac927 RH |
524 | snprintf(tmp, sizeof(tmp), "%s/%d/stat", |
525 | root, pid); | |
aba5acdf | 526 | if ((fp = fopen(tmp, "r")) != NULL) { |
116ac927 | 527 | fscanf(fp, "%*d (%[^)])", p); |
aba5acdf SH |
528 | fclose(fp); |
529 | } | |
530 | } | |
116ac927 RH |
531 | user_ent_add(ino, p, pid, fd, |
532 | pid_context, sock_context); | |
533 | free(sock_context); | |
aba5acdf | 534 | } |
116ac927 | 535 | free(pid_context); |
aba5acdf SH |
536 | closedir(dir1); |
537 | } | |
538 | closedir(dir); | |
fbc0f876 SF |
539 | } |
540 | ||
116ac927 RH |
541 | enum entry_types { |
542 | USERS, | |
543 | PROC_CTX, | |
544 | PROC_SOCK_CTX | |
545 | }; | |
546 | ||
547 | #define ENTRY_BUF_SIZE 512 | |
548 | static int find_entry(unsigned ino, char **buf, int type) | |
fbc0f876 SF |
549 | { |
550 | struct user_ent *p; | |
551 | int cnt = 0; | |
552 | char *ptr; | |
116ac927 RH |
553 | char **new_buf = buf; |
554 | int len, new_buf_len; | |
555 | int buf_used = 0; | |
556 | int buf_len = 0; | |
fbc0f876 SF |
557 | |
558 | if (!ino) | |
559 | return 0; | |
560 | ||
561 | p = user_ent_hash[user_ent_hashfn(ino)]; | |
116ac927 | 562 | ptr = *buf = NULL; |
fbc0f876 SF |
563 | while (p) { |
564 | if (p->ino != ino) | |
565 | goto next; | |
566 | ||
116ac927 RH |
567 | while (1) { |
568 | ptr = *buf + buf_used; | |
569 | switch (type) { | |
570 | case USERS: | |
571 | len = snprintf(ptr, buf_len - buf_used, | |
572 | "(\"%s\",pid=%d,fd=%d),", | |
573 | p->process, p->pid, p->fd); | |
574 | break; | |
575 | case PROC_CTX: | |
576 | len = snprintf(ptr, buf_len - buf_used, | |
577 | "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),", | |
578 | p->process, p->pid, | |
579 | p->process_ctx, p->fd); | |
580 | break; | |
581 | case PROC_SOCK_CTX: | |
582 | len = snprintf(ptr, buf_len - buf_used, | |
583 | "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),", | |
584 | p->process, p->pid, | |
585 | p->process_ctx, p->fd, | |
586 | p->socket_ctx); | |
587 | break; | |
588 | default: | |
589 | fprintf(stderr, "ss: invalid type: %d\n", type); | |
590 | abort(); | |
591 | } | |
fbc0f876 | 592 | |
116ac927 RH |
593 | if (len < 0 || len >= buf_len - buf_used) { |
594 | new_buf_len = buf_len + ENTRY_BUF_SIZE; | |
595 | *new_buf = realloc(*buf, new_buf_len); | |
596 | if (!new_buf) { | |
597 | fprintf(stderr, "ss: failed to malloc buffer\n"); | |
598 | abort(); | |
599 | } | |
e0dce0e5 | 600 | *buf = *new_buf; |
116ac927 RH |
601 | buf_len = new_buf_len; |
602 | continue; | |
603 | } else { | |
604 | buf_used += len; | |
605 | break; | |
606 | } | |
607 | } | |
fbc0f876 | 608 | cnt++; |
116ac927 | 609 | next: |
fbc0f876 SF |
610 | p = p->next; |
611 | } | |
116ac927 RH |
612 | if (buf_used) { |
613 | ptr = *buf + buf_used; | |
fbc0f876 | 614 | ptr[-1] = '\0'; |
116ac927 | 615 | } |
aba5acdf SH |
616 | return cnt; |
617 | } | |
618 | ||
aba5acdf SH |
619 | /* Get stats from slab */ |
620 | ||
621 | struct slabstat | |
622 | { | |
623 | int socks; | |
624 | int tcp_ports; | |
625 | int tcp_tws; | |
626 | int tcp_syns; | |
627 | int skbs; | |
628 | }; | |
629 | ||
a221d621 | 630 | static struct slabstat slabstat; |
aba5acdf | 631 | |
ae665a52 | 632 | static const char *slabstat_ids[] = |
aba5acdf SH |
633 | { |
634 | "sock", | |
635 | "tcp_bind_bucket", | |
636 | "tcp_tw_bucket", | |
637 | "tcp_open_request", | |
638 | "skbuff_head_cache", | |
639 | }; | |
640 | ||
d1f28cf1 | 641 | static int get_slabstat(struct slabstat *s) |
aba5acdf SH |
642 | { |
643 | char buf[256]; | |
644 | FILE *fp; | |
645 | int cnt; | |
a221d621 BL |
646 | static int slabstat_valid; |
647 | ||
648 | if (slabstat_valid) | |
649 | return 0; | |
aba5acdf SH |
650 | |
651 | memset(s, 0, sizeof(*s)); | |
652 | ||
ab01dbbb SH |
653 | fp = slabinfo_open(); |
654 | if (!fp) | |
aba5acdf SH |
655 | return -1; |
656 | ||
657 | cnt = sizeof(*s)/sizeof(int); | |
658 | ||
659 | fgets(buf, sizeof(buf), fp); | |
660 | while(fgets(buf, sizeof(buf), fp) != NULL) { | |
661 | int i; | |
662 | for (i=0; i<sizeof(slabstat_ids)/sizeof(slabstat_ids[0]); i++) { | |
663 | if (memcmp(buf, slabstat_ids[i], strlen(slabstat_ids[i])) == 0) { | |
664 | sscanf(buf, "%*s%d", ((int *)s) + i); | |
665 | cnt--; | |
666 | break; | |
667 | } | |
668 | } | |
669 | if (cnt <= 0) | |
670 | break; | |
671 | } | |
672 | ||
a221d621 BL |
673 | slabstat_valid = 1; |
674 | ||
aba5acdf SH |
675 | fclose(fp); |
676 | return 0; | |
677 | } | |
678 | ||
2e7e805d | 679 | static unsigned long long cookie_sk_get(const uint32_t *cookie) |
f1b39e1b | 680 | { |
2e7e805d | 681 | return (((unsigned long long)cookie[1] << 31) << 1) | cookie[0]; |
f1b39e1b VK |
682 | } |
683 | ||
7d105b56 SH |
684 | static const char *sstate_name[] = { |
685 | "UNKNOWN", | |
9cb1eccf ED |
686 | [SS_ESTABLISHED] = "ESTAB", |
687 | [SS_SYN_SENT] = "SYN-SENT", | |
688 | [SS_SYN_RECV] = "SYN-RECV", | |
689 | [SS_FIN_WAIT1] = "FIN-WAIT-1", | |
690 | [SS_FIN_WAIT2] = "FIN-WAIT-2", | |
691 | [SS_TIME_WAIT] = "TIME-WAIT", | |
692 | [SS_CLOSE] = "UNCONN", | |
693 | [SS_CLOSE_WAIT] = "CLOSE-WAIT", | |
694 | [SS_LAST_ACK] = "LAST-ACK", | |
695 | [SS_LISTEN] = "LISTEN", | |
696 | [SS_CLOSING] = "CLOSING", | |
aba5acdf SH |
697 | }; |
698 | ||
7d105b56 SH |
699 | static const char *sstate_namel[] = { |
700 | "UNKNOWN", | |
9cb1eccf ED |
701 | [SS_ESTABLISHED] = "established", |
702 | [SS_SYN_SENT] = "syn-sent", | |
703 | [SS_SYN_RECV] = "syn-recv", | |
704 | [SS_FIN_WAIT1] = "fin-wait-1", | |
705 | [SS_FIN_WAIT2] = "fin-wait-2", | |
706 | [SS_TIME_WAIT] = "time-wait", | |
707 | [SS_CLOSE] = "unconnected", | |
708 | [SS_CLOSE_WAIT] = "close-wait", | |
709 | [SS_LAST_ACK] = "last-ack", | |
710 | [SS_LISTEN] = "listening", | |
711 | [SS_CLOSING] = "closing", | |
aba5acdf SH |
712 | }; |
713 | ||
055840f2 | 714 | struct sockstat |
aba5acdf | 715 | { |
ec4d0d8a VK |
716 | struct sockstat *next; |
717 | unsigned int type; | |
89f634f9 | 718 | uint16_t prot; |
8250bc9f VK |
719 | inet_prefix local; |
720 | inet_prefix remote; | |
721 | int lport; | |
722 | int rport; | |
723 | int state; | |
724 | int rq, wq; | |
725 | unsigned ino; | |
726 | unsigned uid; | |
727 | int refcnt; | |
728 | unsigned int iface; | |
729 | unsigned long long sk; | |
99bb68ff VK |
730 | char *name; |
731 | char *peer_name; | |
055840f2 VK |
732 | }; |
733 | ||
734 | struct dctcpstat | |
735 | { | |
736 | unsigned int ce_state; | |
737 | unsigned int alpha; | |
738 | unsigned int ab_ecn; | |
739 | unsigned int ab_tot; | |
740 | bool enabled; | |
741 | }; | |
742 | ||
743 | struct tcpstat | |
744 | { | |
745 | struct sockstat ss; | |
8250bc9f VK |
746 | int timer; |
747 | int timeout; | |
748 | int probes; | |
d2055ea5 | 749 | char cong_alg[16]; |
8250bc9f VK |
750 | double rto, ato, rtt, rttvar; |
751 | int qack, cwnd, ssthresh, backoff; | |
752 | double send_bps; | |
753 | int snd_wscale; | |
754 | int rcv_wscale; | |
755 | int mss; | |
756 | unsigned int lastsnd; | |
757 | unsigned int lastrcv; | |
758 | unsigned int lastack; | |
759 | double pacing_rate; | |
760 | double pacing_rate_max; | |
1a4dda71 ED |
761 | unsigned long long bytes_acked; |
762 | unsigned long long bytes_received; | |
ecb435ea CG |
763 | unsigned int segs_out; |
764 | unsigned int segs_in; | |
8250bc9f VK |
765 | unsigned int unacked; |
766 | unsigned int retrans; | |
767 | unsigned int retrans_total; | |
768 | unsigned int lost; | |
769 | unsigned int sacked; | |
770 | unsigned int fackets; | |
771 | unsigned int reordering; | |
772 | double rcv_rtt; | |
773 | int rcv_space; | |
774 | bool has_ts_opt; | |
775 | bool has_sack_opt; | |
776 | bool has_ecn_opt; | |
777 | bool has_ecnseen_opt; | |
778 | bool has_fastopen_opt; | |
779 | bool has_wscale_opt; | |
780 | struct dctcpstat *dctcp; | |
aba5acdf SH |
781 | }; |
782 | ||
2d791bc8 VK |
783 | static void sock_state_print(struct sockstat *s, const char *sock_name) |
784 | { | |
785 | if (netid_width) | |
786 | printf("%-*s ", netid_width, sock_name); | |
787 | if (state_width) | |
788 | printf("%-*s ", state_width, sstate_name[s->state]); | |
789 | ||
790 | printf("%-6d %-6d ", s->rq, s->wq); | |
791 | } | |
792 | ||
f1b39e1b VK |
793 | static void sock_details_print(struct sockstat *s) |
794 | { | |
795 | if (s->uid) | |
796 | printf(" uid:%u", s->uid); | |
797 | ||
798 | printf(" ino:%u", s->ino); | |
799 | printf(" sk:%llx", s->sk); | |
800 | } | |
801 | ||
b217df10 VK |
802 | static void sock_addr_print_width(int addr_len, const char *addr, char *delim, |
803 | int port_len, const char *port, const char *ifname) | |
804 | { | |
805 | if (ifname) { | |
806 | printf("%*s%%%s%s%-*s ", addr_len, addr, ifname, delim, | |
807 | port_len, port); | |
808 | } | |
809 | else { | |
810 | printf("%*s%s%-*s ", addr_len, addr, delim, port_len, port); | |
811 | } | |
812 | } | |
813 | ||
814 | static void sock_addr_print(const char *addr, char *delim, const char *port, | |
815 | const char *ifname) | |
816 | { | |
817 | sock_addr_print_width(addr_width, addr, delim, serv_width, port, ifname); | |
818 | } | |
819 | ||
7d105b56 | 820 | static const char *tmr_name[] = { |
aba5acdf SH |
821 | "off", |
822 | "on", | |
823 | "keepalive", | |
824 | "timewait", | |
825 | "persist", | |
826 | "unknown" | |
827 | }; | |
828 | ||
d1f28cf1 | 829 | static const char *print_ms_timer(int timeout) |
aba5acdf SH |
830 | { |
831 | static char buf[64]; | |
832 | int secs, msecs, minutes; | |
833 | if (timeout < 0) | |
834 | timeout = 0; | |
835 | secs = timeout/1000; | |
836 | minutes = secs/60; | |
837 | secs = secs%60; | |
838 | msecs = timeout%1000; | |
839 | buf[0] = 0; | |
840 | if (minutes) { | |
841 | msecs = 0; | |
842 | snprintf(buf, sizeof(buf)-16, "%dmin", minutes); | |
843 | if (minutes > 9) | |
844 | secs = 0; | |
845 | } | |
846 | if (secs) { | |
847 | if (secs > 9) | |
848 | msecs = 0; | |
849 | sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec"); | |
850 | } | |
851 | if (msecs) | |
852 | sprintf(buf+strlen(buf), "%03dms", msecs); | |
853 | return buf; | |
e7113c61 | 854 | } |
aba5acdf | 855 | |
22588a0e | 856 | struct scache { |
aba5acdf SH |
857 | struct scache *next; |
858 | int port; | |
859 | char *name; | |
860 | const char *proto; | |
861 | }; | |
862 | ||
863 | struct scache *rlist; | |
864 | ||
d1f28cf1 | 865 | static void init_service_resolver(void) |
aba5acdf SH |
866 | { |
867 | char buf[128]; | |
868 | FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r"); | |
869 | if (fp) { | |
870 | fgets(buf, sizeof(buf), fp); | |
871 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
872 | unsigned int progn, port; | |
873 | char proto[128], prog[128]; | |
874 | if (sscanf(buf, "%u %*d %s %u %s", &progn, proto, | |
875 | &port, prog+4) == 4) { | |
876 | struct scache *c = malloc(sizeof(*c)); | |
877 | if (c) { | |
878 | c->port = port; | |
879 | memcpy(prog, "rpc.", 4); | |
880 | c->name = strdup(prog); | |
881 | if (strcmp(proto, TCP_PROTO) == 0) | |
882 | c->proto = TCP_PROTO; | |
883 | else if (strcmp(proto, UDP_PROTO) == 0) | |
884 | c->proto = UDP_PROTO; | |
885 | else | |
886 | c->proto = NULL; | |
887 | c->next = rlist; | |
888 | rlist = c; | |
889 | } | |
890 | } | |
891 | } | |
2bcc3c16 | 892 | pclose(fp); |
aba5acdf SH |
893 | } |
894 | } | |
895 | ||
ab61159a SH |
896 | static int ip_local_port_min, ip_local_port_max; |
897 | ||
898 | /* Even do not try default linux ephemeral port ranges: | |
899 | * default /etc/services contains so much of useless crap | |
900 | * wouldbe "allocated" to this area that resolution | |
901 | * is really harmful. I shrug each time when seeing | |
902 | * "socks" or "cfinger" in dumps. | |
903 | */ | |
904 | static int is_ephemeral(int port) | |
905 | { | |
906 | if (!ip_local_port_min) { | |
ab01dbbb | 907 | FILE *f = ephemeral_ports_open(); |
ab61159a | 908 | if (f) { |
ae665a52 | 909 | fscanf(f, "%d %d", |
ab61159a SH |
910 | &ip_local_port_min, &ip_local_port_max); |
911 | fclose(f); | |
912 | } else { | |
913 | ip_local_port_min = 1024; | |
914 | ip_local_port_max = 4999; | |
915 | } | |
916 | } | |
917 | ||
918 | return (port >= ip_local_port_min && port<= ip_local_port_max); | |
919 | } | |
920 | ||
921 | ||
d1f28cf1 | 922 | static const char *__resolve_service(int port) |
aba5acdf SH |
923 | { |
924 | struct scache *c; | |
925 | ||
926 | for (c = rlist; c; c = c->next) { | |
927 | if (c->port == port && c->proto == dg_proto) | |
928 | return c->name; | |
929 | } | |
930 | ||
ab61159a | 931 | if (!is_ephemeral(port)) { |
aba5acdf SH |
932 | static int notfirst; |
933 | struct servent *se; | |
934 | if (!notfirst) { | |
935 | setservent(1); | |
936 | notfirst = 1; | |
ae665a52 | 937 | } |
aba5acdf SH |
938 | se = getservbyport(htons(port), dg_proto); |
939 | if (se) | |
940 | return se->s_name; | |
941 | } | |
942 | ||
943 | return NULL; | |
944 | } | |
945 | ||
22588a0e ED |
946 | #define SCACHE_BUCKETS 1024 |
947 | static struct scache *cache_htab[SCACHE_BUCKETS]; | |
aba5acdf | 948 | |
d1f28cf1 | 949 | static const char *resolve_service(int port) |
aba5acdf SH |
950 | { |
951 | static char buf[128]; | |
22588a0e ED |
952 | struct scache *c; |
953 | const char *res; | |
954 | int hash; | |
aba5acdf SH |
955 | |
956 | if (port == 0) { | |
957 | buf[0] = '*'; | |
958 | buf[1] = 0; | |
959 | return buf; | |
960 | } | |
961 | ||
22588a0e ED |
962 | if (!resolve_services) |
963 | goto do_numeric; | |
aba5acdf | 964 | |
22588a0e ED |
965 | if (dg_proto == RAW_PROTO) |
966 | return inet_proto_n2a(port, buf, sizeof(buf)); | |
967 | ||
968 | ||
969 | hash = (port^(((unsigned long)dg_proto)>>2)) % SCACHE_BUCKETS; | |
970 | ||
971 | for (c = cache_htab[hash]; c; c = c->next) { | |
972 | if (c->port == port && c->proto == dg_proto) | |
973 | goto do_cache; | |
aba5acdf SH |
974 | } |
975 | ||
22588a0e ED |
976 | c = malloc(sizeof(*c)); |
977 | if (!c) | |
978 | goto do_numeric; | |
979 | res = __resolve_service(port); | |
980 | c->port = port; | |
981 | c->name = res ? strdup(res) : NULL; | |
982 | c->proto = dg_proto; | |
983 | c->next = cache_htab[hash]; | |
984 | cache_htab[hash] = c; | |
985 | ||
986 | do_cache: | |
987 | if (c->name) | |
988 | return c->name; | |
989 | ||
990 | do_numeric: | |
aba5acdf SH |
991 | sprintf(buf, "%u", port); |
992 | return buf; | |
993 | } | |
994 | ||
b217df10 | 995 | static void inet_addr_print(const inet_prefix *a, int port, unsigned int ifindex) |
aba5acdf SH |
996 | { |
997 | char buf[1024]; | |
998 | const char *ap = buf; | |
b217df10 VK |
999 | int est_len = addr_width; |
1000 | const char *ifname = NULL; | |
aba5acdf SH |
1001 | |
1002 | if (a->family == AF_INET) { | |
1003 | if (a->data[0] == 0) { | |
1004 | buf[0] = '*'; | |
1005 | buf[1] = 0; | |
1006 | } else { | |
1007 | ap = format_host(AF_INET, 4, a->data, buf, sizeof(buf)); | |
1008 | } | |
1009 | } else { | |
1010 | ap = format_host(a->family, 16, a->data, buf, sizeof(buf)); | |
1011 | est_len = strlen(ap); | |
1012 | if (est_len <= addr_width) | |
1013 | est_len = addr_width; | |
1014 | else | |
1015 | est_len = addr_width + ((est_len-addr_width+3)/4)*4; | |
1016 | } | |
b217df10 | 1017 | |
7c8a3cfb | 1018 | if (ifindex) { |
b217df10 VK |
1019 | ifname = ll_index_to_name(ifindex); |
1020 | est_len -= strlen(ifname) + 1; /* +1 for percent char */ | |
1021 | } | |
7c8a3cfb | 1022 | |
b217df10 VK |
1023 | sock_addr_print_width(est_len, ap, ":", serv_width, resolve_service(port), |
1024 | ifname); | |
aba5acdf SH |
1025 | } |
1026 | ||
1027 | struct aafilter | |
1028 | { | |
1029 | inet_prefix addr; | |
1030 | int port; | |
1031 | struct aafilter *next; | |
1032 | }; | |
1033 | ||
d1f28cf1 SH |
1034 | static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p, |
1035 | int plen) | |
aba5acdf SH |
1036 | { |
1037 | if (!inet_addr_match(a, p, plen)) | |
1038 | return 0; | |
7d105b56 | 1039 | |
aba5acdf SH |
1040 | /* Cursed "v4 mapped" addresses: v4 mapped socket matches |
1041 | * pure IPv4 rule, but v4-mapped rule selects only v4-mapped | |
1042 | * sockets. Fair? */ | |
1043 | if (p->family == AF_INET && a->family == AF_INET6) { | |
1044 | if (a->data[0] == 0 && a->data[1] == 0 && | |
1045 | a->data[2] == htonl(0xffff)) { | |
1046 | inet_prefix tmp = *a; | |
1047 | tmp.data[0] = a->data[3]; | |
1048 | return inet_addr_match(&tmp, p, plen); | |
1049 | } | |
1050 | } | |
1051 | return 1; | |
1052 | } | |
1053 | ||
d1f28cf1 | 1054 | static int unix_match(const inet_prefix *a, const inet_prefix *p) |
aba5acdf | 1055 | { |
99bb68ff VK |
1056 | char *addr, *pattern; |
1057 | memcpy(&addr, a->data, sizeof(addr)); | |
1058 | memcpy(&pattern, p->data, sizeof(pattern)); | |
aba5acdf SH |
1059 | if (pattern == NULL) |
1060 | return 1; | |
1061 | if (addr == NULL) | |
1062 | addr = ""; | |
1063 | return !fnmatch(pattern, addr, 0); | |
1064 | } | |
1065 | ||
055840f2 | 1066 | static int run_ssfilter(struct ssfilter *f, struct sockstat *s) |
aba5acdf SH |
1067 | { |
1068 | switch (f->type) { | |
1069 | case SSF_S_AUTO: | |
1070 | { | |
1071 | static int low, high=65535; | |
1072 | ||
1073 | if (s->local.family == AF_UNIX) { | |
99bb68ff VK |
1074 | char *p; |
1075 | memcpy(&p, s->local.data, sizeof(p)); | |
aba5acdf | 1076 | return p == NULL || (p[0] == '@' && strlen(p) == 6 && |
ae665a52 | 1077 | strspn(p+1, "0123456789abcdef") == 5); |
aba5acdf SH |
1078 | } |
1079 | if (s->local.family == AF_PACKET) | |
bbd303d1 | 1080 | return s->lport == 0 && s->local.data[0] == 0; |
aba5acdf SH |
1081 | if (s->local.family == AF_NETLINK) |
1082 | return s->lport < 0; | |
1083 | ||
1084 | if (!low) { | |
ab01dbbb | 1085 | FILE *fp = ephemeral_ports_open(); |
aba5acdf SH |
1086 | if (fp) { |
1087 | fscanf(fp, "%d%d", &low, &high); | |
1088 | fclose(fp); | |
1089 | } | |
1090 | } | |
1091 | return s->lport >= low && s->lport <= high; | |
1092 | } | |
1093 | case SSF_DCOND: | |
1094 | { | |
1095 | struct aafilter *a = (void*)f->pred; | |
1096 | if (a->addr.family == AF_UNIX) | |
1097 | return unix_match(&s->remote, &a->addr); | |
1098 | if (a->port != -1 && a->port != s->rport) | |
1099 | return 0; | |
1100 | if (a->addr.bitlen) { | |
1101 | do { | |
1102 | if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen)) | |
1103 | return 1; | |
1104 | } while ((a = a->next) != NULL); | |
1105 | return 0; | |
1106 | } | |
1107 | return 1; | |
1108 | } | |
1109 | case SSF_SCOND: | |
1110 | { | |
1111 | struct aafilter *a = (void*)f->pred; | |
1112 | if (a->addr.family == AF_UNIX) | |
1113 | return unix_match(&s->local, &a->addr); | |
1114 | if (a->port != -1 && a->port != s->lport) | |
1115 | return 0; | |
1116 | if (a->addr.bitlen) { | |
1117 | do { | |
1118 | if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen)) | |
1119 | return 1; | |
ae665a52 | 1120 | } while ((a = a->next) != NULL); |
aba5acdf SH |
1121 | return 0; |
1122 | } | |
1123 | return 1; | |
1124 | } | |
1125 | case SSF_D_GE: | |
1126 | { | |
1127 | struct aafilter *a = (void*)f->pred; | |
1128 | return s->rport >= a->port; | |
1129 | } | |
1130 | case SSF_D_LE: | |
1131 | { | |
1132 | struct aafilter *a = (void*)f->pred; | |
1133 | return s->rport <= a->port; | |
1134 | } | |
1135 | case SSF_S_GE: | |
1136 | { | |
1137 | struct aafilter *a = (void*)f->pred; | |
1138 | return s->lport >= a->port; | |
1139 | } | |
1140 | case SSF_S_LE: | |
1141 | { | |
1142 | struct aafilter *a = (void*)f->pred; | |
1143 | return s->lport <= a->port; | |
1144 | } | |
1145 | ||
1146 | /* Yup. It is recursion. Sorry. */ | |
1147 | case SSF_AND: | |
1148 | return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s); | |
1149 | case SSF_OR: | |
1150 | return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s); | |
1151 | case SSF_NOT: | |
1152 | return !run_ssfilter(f->pred, s); | |
1153 | default: | |
1154 | abort(); | |
1155 | } | |
1156 | } | |
1157 | ||
ae665a52 | 1158 | /* Relocate external jumps by reloc. */ |
b4b0b7d5 | 1159 | static void ssfilter_patch(char *a, int len, int reloc) |
aba5acdf SH |
1160 | { |
1161 | while (len > 0) { | |
351efcde | 1162 | struct inet_diag_bc_op *op = (struct inet_diag_bc_op*)a; |
aba5acdf SH |
1163 | if (op->no == len+4) |
1164 | op->no += reloc; | |
1165 | len -= op->yes; | |
1166 | a += op->yes; | |
1167 | } | |
1168 | if (len < 0) | |
1169 | abort(); | |
1170 | } | |
1171 | ||
b4b0b7d5 | 1172 | static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode) |
aba5acdf SH |
1173 | { |
1174 | switch (f->type) { | |
1175 | case SSF_S_AUTO: | |
1176 | { | |
1177 | if (!(*bytecode=malloc(4))) abort(); | |
351efcde | 1178 | ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 }; |
df39de8d | 1179 | return 4; |
aba5acdf SH |
1180 | } |
1181 | case SSF_DCOND: | |
1182 | case SSF_SCOND: | |
1183 | { | |
1184 | struct aafilter *a = (void*)f->pred; | |
1185 | struct aafilter *b; | |
1186 | char *ptr; | |
351efcde | 1187 | int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND); |
aba5acdf SH |
1188 | int len = 0; |
1189 | ||
1190 | for (b=a; b; b=b->next) { | |
351efcde | 1191 | len += 4 + sizeof(struct inet_diag_hostcond); |
aba5acdf SH |
1192 | if (a->addr.family == AF_INET6) |
1193 | len += 16; | |
1194 | else | |
1195 | len += 4; | |
1196 | if (b->next) | |
1197 | len += 4; | |
1198 | } | |
1199 | if (!(ptr = malloc(len))) abort(); | |
1200 | *bytecode = ptr; | |
1201 | for (b=a; b; b=b->next) { | |
351efcde | 1202 | struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr; |
aba5acdf | 1203 | int alen = (a->addr.family == AF_INET6 ? 16 : 4); |
351efcde SH |
1204 | int oplen = alen + 4 + sizeof(struct inet_diag_hostcond); |
1205 | struct inet_diag_hostcond *cond = (struct inet_diag_hostcond*)(ptr+4); | |
aba5acdf | 1206 | |
351efcde | 1207 | *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 }; |
aba5acdf SH |
1208 | cond->family = a->addr.family; |
1209 | cond->port = a->port; | |
1210 | cond->prefix_len = a->addr.bitlen; | |
1211 | memcpy(cond->addr, a->addr.data, alen); | |
1212 | ptr += oplen; | |
1213 | if (b->next) { | |
351efcde SH |
1214 | op = (struct inet_diag_bc_op *)ptr; |
1215 | *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)}; | |
aba5acdf SH |
1216 | ptr += 4; |
1217 | } | |
1218 | } | |
1219 | return ptr - *bytecode; | |
1220 | } | |
1221 | case SSF_D_GE: | |
1222 | { | |
1223 | struct aafilter *x = (void*)f->pred; | |
1224 | if (!(*bytecode=malloc(8))) abort(); | |
351efcde SH |
1225 | ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 }; |
1226 | ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
1227 | return 8; |
1228 | } | |
1229 | case SSF_D_LE: | |
1230 | { | |
1231 | struct aafilter *x = (void*)f->pred; | |
1232 | if (!(*bytecode=malloc(8))) abort(); | |
351efcde SH |
1233 | ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 }; |
1234 | ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
1235 | return 8; |
1236 | } | |
1237 | case SSF_S_GE: | |
1238 | { | |
1239 | struct aafilter *x = (void*)f->pred; | |
1240 | if (!(*bytecode=malloc(8))) abort(); | |
351efcde SH |
1241 | ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 }; |
1242 | ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
1243 | return 8; |
1244 | } | |
1245 | case SSF_S_LE: | |
1246 | { | |
1247 | struct aafilter *x = (void*)f->pred; | |
1248 | if (!(*bytecode=malloc(8))) abort(); | |
351efcde SH |
1249 | ((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 }; |
1250 | ((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
1251 | return 8; |
1252 | } | |
1253 | ||
1254 | case SSF_AND: | |
1255 | { | |
2a4fa1c3 AH |
1256 | char *a1, *a2, *a; |
1257 | int l1, l2; | |
aba5acdf SH |
1258 | l1 = ssfilter_bytecompile(f->pred, &a1); |
1259 | l2 = ssfilter_bytecompile(f->post, &a2); | |
1260 | if (!(a = malloc(l1+l2))) abort(); | |
1261 | memcpy(a, a1, l1); | |
1262 | memcpy(a+l1, a2, l2); | |
1263 | free(a1); free(a2); | |
1264 | ssfilter_patch(a, l1, l2); | |
1265 | *bytecode = a; | |
1266 | return l1+l2; | |
1267 | } | |
1268 | case SSF_OR: | |
1269 | { | |
2a4fa1c3 AH |
1270 | char *a1, *a2, *a; |
1271 | int l1, l2; | |
aba5acdf SH |
1272 | l1 = ssfilter_bytecompile(f->pred, &a1); |
1273 | l2 = ssfilter_bytecompile(f->post, &a2); | |
1274 | if (!(a = malloc(l1+l2+4))) abort(); | |
1275 | memcpy(a, a1, l1); | |
1276 | memcpy(a+l1+4, a2, l2); | |
1277 | free(a1); free(a2); | |
351efcde | 1278 | *(struct inet_diag_bc_op*)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 }; |
aba5acdf SH |
1279 | *bytecode = a; |
1280 | return l1+l2+4; | |
1281 | } | |
1282 | case SSF_NOT: | |
1283 | { | |
2a4fa1c3 AH |
1284 | char *a1, *a; |
1285 | int l1; | |
aba5acdf SH |
1286 | l1 = ssfilter_bytecompile(f->pred, &a1); |
1287 | if (!(a = malloc(l1+4))) abort(); | |
1288 | memcpy(a, a1, l1); | |
1289 | free(a1); | |
351efcde | 1290 | *(struct inet_diag_bc_op*)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 }; |
aba5acdf SH |
1291 | *bytecode = a; |
1292 | return l1+4; | |
1293 | } | |
1294 | default: | |
1295 | abort(); | |
1296 | } | |
1297 | } | |
1298 | ||
b4b0b7d5 | 1299 | static int remember_he(struct aafilter *a, struct hostent *he) |
aba5acdf | 1300 | { |
ae665a52 | 1301 | char **ptr = he->h_addr_list; |
aba5acdf SH |
1302 | int cnt = 0; |
1303 | int len; | |
1304 | ||
1305 | if (he->h_addrtype == AF_INET) | |
1306 | len = 4; | |
1307 | else if (he->h_addrtype == AF_INET6) | |
1308 | len = 16; | |
1309 | else | |
1310 | return 0; | |
1311 | ||
1312 | while (*ptr) { | |
1313 | struct aafilter *b = a; | |
1314 | if (a->addr.bitlen) { | |
1315 | if ((b = malloc(sizeof(*b))) == NULL) | |
1316 | return cnt; | |
1317 | *b = *a; | |
1318 | b->next = a->next; | |
1319 | a->next = b; | |
1320 | } | |
1321 | memcpy(b->addr.data, *ptr, len); | |
1322 | b->addr.bytelen = len; | |
1323 | b->addr.bitlen = len*8; | |
1324 | b->addr.family = he->h_addrtype; | |
1325 | ptr++; | |
1326 | cnt++; | |
1327 | } | |
1328 | return cnt; | |
1329 | } | |
1330 | ||
b4b0b7d5 | 1331 | static int get_dns_host(struct aafilter *a, const char *addr, int fam) |
aba5acdf SH |
1332 | { |
1333 | static int notfirst; | |
1334 | int cnt = 0; | |
1335 | struct hostent *he; | |
1336 | ||
1337 | a->addr.bitlen = 0; | |
1338 | if (!notfirst) { | |
1339 | sethostent(1); | |
1340 | notfirst = 1; | |
1341 | } | |
1342 | he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam); | |
1343 | if (he) | |
1344 | cnt = remember_he(a, he); | |
1345 | if (fam == AF_UNSPEC) { | |
1346 | he = gethostbyname2(addr, AF_INET6); | |
1347 | if (he) | |
1348 | cnt += remember_he(a, he); | |
1349 | } | |
1350 | return !cnt; | |
1351 | } | |
1352 | ||
b4b0b7d5 | 1353 | static int xll_initted = 0; |
aba5acdf | 1354 | |
b4b0b7d5 | 1355 | static void xll_init(void) |
aba5acdf SH |
1356 | { |
1357 | struct rtnl_handle rth; | |
d2468da0 SH |
1358 | if (rtnl_open(&rth, 0) < 0) |
1359 | exit(1); | |
1360 | ||
aba5acdf SH |
1361 | ll_init_map(&rth); |
1362 | rtnl_close(&rth); | |
1363 | xll_initted = 1; | |
1364 | } | |
1365 | ||
b4b0b7d5 | 1366 | static const char *xll_index_to_name(int index) |
aba5acdf SH |
1367 | { |
1368 | if (!xll_initted) | |
1369 | xll_init(); | |
1370 | return ll_index_to_name(index); | |
1371 | } | |
1372 | ||
b4b0b7d5 | 1373 | static int xll_name_to_index(const char *dev) |
aba5acdf SH |
1374 | { |
1375 | if (!xll_initted) | |
1376 | xll_init(); | |
1377 | return ll_name_to_index(dev); | |
1378 | } | |
1379 | ||
7871f7db | 1380 | void *parse_hostcond(char *addr, bool is_port) |
aba5acdf SH |
1381 | { |
1382 | char *port = NULL; | |
1527a17e | 1383 | struct aafilter a = { .port = -1 }; |
aba5acdf | 1384 | struct aafilter *res; |
1527a17e | 1385 | int fam = preferred_family; |
9db7bf15 | 1386 | struct filter *f = ¤t_filter; |
aba5acdf | 1387 | |
1527a17e | 1388 | if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) { |
aba5acdf SH |
1389 | char *p; |
1390 | a.addr.family = AF_UNIX; | |
1391 | if (strncmp(addr, "unix:", 5) == 0) | |
1392 | addr+=5; | |
1393 | p = strdup(addr); | |
1394 | a.addr.bitlen = 8*strlen(p); | |
99bb68ff | 1395 | memcpy(a.addr.data, &p, sizeof(p)); |
9db7bf15 | 1396 | fam = AF_UNIX; |
aba5acdf SH |
1397 | goto out; |
1398 | } | |
1399 | ||
1527a17e | 1400 | if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) { |
aba5acdf SH |
1401 | a.addr.family = AF_PACKET; |
1402 | a.addr.bitlen = 0; | |
1403 | if (strncmp(addr, "link:", 5) == 0) | |
1404 | addr+=5; | |
1405 | port = strchr(addr, ':'); | |
1406 | if (port) { | |
1407 | *port = 0; | |
1408 | if (port[1] && strcmp(port+1, "*")) { | |
1409 | if (get_integer(&a.port, port+1, 0)) { | |
1410 | if ((a.port = xll_name_to_index(port+1)) <= 0) | |
1411 | return NULL; | |
1412 | } | |
1413 | } | |
1414 | } | |
1415 | if (addr[0] && strcmp(addr, "*")) { | |
1416 | unsigned short tmp; | |
1417 | a.addr.bitlen = 32; | |
1418 | if (ll_proto_a2n(&tmp, addr)) | |
1419 | return NULL; | |
1420 | a.addr.data[0] = ntohs(tmp); | |
1421 | } | |
9db7bf15 | 1422 | fam = AF_PACKET; |
aba5acdf SH |
1423 | goto out; |
1424 | } | |
1425 | ||
1527a17e | 1426 | if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) { |
aba5acdf SH |
1427 | a.addr.family = AF_NETLINK; |
1428 | a.addr.bitlen = 0; | |
1429 | if (strncmp(addr, "netlink:", 8) == 0) | |
1430 | addr+=8; | |
1431 | port = strchr(addr, ':'); | |
1432 | if (port) { | |
1433 | *port = 0; | |
1434 | if (port[1] && strcmp(port+1, "*")) { | |
1435 | if (get_integer(&a.port, port+1, 0)) { | |
1436 | if (strcmp(port+1, "kernel") == 0) | |
1437 | a.port = 0; | |
1438 | else | |
1439 | return NULL; | |
1440 | } | |
1441 | } | |
1442 | } | |
1443 | if (addr[0] && strcmp(addr, "*")) { | |
1444 | a.addr.bitlen = 32; | |
b00daf6a | 1445 | if (nl_proto_a2n(&a.addr.data[0], addr) == -1) |
1446 | return NULL; | |
aba5acdf | 1447 | } |
9db7bf15 | 1448 | fam = AF_NETLINK; |
aba5acdf SH |
1449 | goto out; |
1450 | } | |
1451 | ||
1527a17e | 1452 | if (fam == AF_INET || !strncmp(addr, "inet:", 5)) { |
aba5acdf | 1453 | fam = AF_INET; |
1527a17e VK |
1454 | if (!strncmp(addr, "inet:", 5)) |
1455 | addr += 5; | |
1456 | } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) { | |
aba5acdf | 1457 | fam = AF_INET6; |
1527a17e VK |
1458 | if (!strncmp(addr, "inet6:", 6)) |
1459 | addr += 6; | |
aba5acdf SH |
1460 | } |
1461 | ||
1462 | /* URL-like literal [] */ | |
1463 | if (addr[0] == '[') { | |
1464 | addr++; | |
1465 | if ((port = strchr(addr, ']')) == NULL) | |
1466 | return NULL; | |
1467 | *port++ = 0; | |
1468 | } else if (addr[0] == '*') { | |
1469 | port = addr+1; | |
1470 | } else { | |
1471 | port = strrchr(strchr(addr, '/') ? : addr, ':'); | |
1472 | } | |
7871f7db VK |
1473 | |
1474 | if (is_port) | |
1475 | port = addr; | |
1476 | ||
aba5acdf | 1477 | if (port && *port) { |
7871f7db VK |
1478 | if (*port == ':') |
1479 | *port++ = 0; | |
1480 | ||
aba5acdf SH |
1481 | if (*port && *port != '*') { |
1482 | if (get_integer(&a.port, port, 0)) { | |
1483 | struct servent *se1 = NULL; | |
1484 | struct servent *se2 = NULL; | |
1485 | if (current_filter.dbs&(1<<UDP_DB)) | |
1486 | se1 = getservbyname(port, UDP_PROTO); | |
1487 | if (current_filter.dbs&(1<<TCP_DB)) | |
1488 | se2 = getservbyname(port, TCP_PROTO); | |
1489 | if (se1 && se2 && se1->s_port != se2->s_port) { | |
1490 | fprintf(stderr, "Error: ambiguous port \"%s\".\n", port); | |
1491 | return NULL; | |
1492 | } | |
1493 | if (!se1) | |
1494 | se1 = se2; | |
1495 | if (se1) { | |
1496 | a.port = ntohs(se1->s_port); | |
1497 | } else { | |
1498 | struct scache *s; | |
1499 | for (s = rlist; s; s = s->next) { | |
1500 | if ((s->proto == UDP_PROTO && | |
1501 | (current_filter.dbs&(1<<UDP_DB))) || | |
1502 | (s->proto == TCP_PROTO && | |
1503 | (current_filter.dbs&(1<<TCP_DB)))) { | |
1504 | if (s->name && strcmp(s->name, port) == 0) { | |
1505 | if (a.port > 0 && a.port != s->port) { | |
1506 | fprintf(stderr, "Error: ambiguous port \"%s\".\n", port); | |
1507 | return NULL; | |
1508 | } | |
1509 | a.port = s->port; | |
1510 | } | |
1511 | } | |
1512 | } | |
1513 | if (a.port <= 0) { | |
1514 | fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port); | |
1515 | return NULL; | |
1516 | } | |
1517 | } | |
1518 | } | |
1519 | } | |
1520 | } | |
7871f7db | 1521 | if (!is_port && addr && *addr && *addr != '*') { |
aba5acdf SH |
1522 | if (get_prefix_1(&a.addr, addr, fam)) { |
1523 | if (get_dns_host(&a, addr, fam)) { | |
1524 | fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr); | |
1525 | return NULL; | |
1526 | } | |
1527 | } | |
1528 | } | |
1529 | ||
9db7bf15 | 1530 | out: |
1527a17e VK |
1531 | if (fam != AF_UNSPEC) { |
1532 | f->families = 0; | |
9db7bf15 | 1533 | filter_af_set(f, fam); |
57ff5a10 | 1534 | filter_states_set(f, 0); |
1527a17e | 1535 | } |
9db7bf15 | 1536 | |
aba5acdf SH |
1537 | res = malloc(sizeof(*res)); |
1538 | if (res) | |
1539 | memcpy(res, &a, sizeof(a)); | |
1540 | return res; | |
1541 | } | |
1542 | ||
8250bc9f VK |
1543 | static char *proto_name(int protocol) |
1544 | { | |
1545 | switch (protocol) { | |
235c4453 NA |
1546 | case 0: |
1547 | return "raw"; | |
8250bc9f VK |
1548 | case IPPROTO_UDP: |
1549 | return "udp"; | |
1550 | case IPPROTO_TCP: | |
1551 | return "tcp"; | |
1552 | case IPPROTO_DCCP: | |
1553 | return "dccp"; | |
1554 | } | |
1555 | ||
1556 | return "???"; | |
1557 | } | |
1558 | ||
055840f2 | 1559 | static void inet_stats_print(struct sockstat *s, int protocol) |
8250bc9f VK |
1560 | { |
1561 | char *buf = NULL; | |
1562 | ||
2d791bc8 | 1563 | sock_state_print(s, proto_name(protocol)); |
8250bc9f | 1564 | |
b217df10 VK |
1565 | inet_addr_print(&s->local, s->lport, s->iface); |
1566 | inet_addr_print(&s->remote, s->rport, 0); | |
8250bc9f | 1567 | |
8250bc9f VK |
1568 | if (show_proc_ctx || show_sock_ctx) { |
1569 | if (find_entry(s->ino, &buf, | |
1570 | (show_proc_ctx & show_sock_ctx) ? | |
1571 | PROC_SOCK_CTX : PROC_CTX) > 0) { | |
1572 | printf(" users:(%s)", buf); | |
1573 | free(buf); | |
1574 | } | |
1575 | } else if (show_users) { | |
1576 | if (find_entry(s->ino, &buf, USERS) > 0) { | |
1577 | printf(" users:(%s)", buf); | |
1578 | free(buf); | |
1579 | } | |
1580 | } | |
1581 | } | |
1582 | ||
055840f2 VK |
1583 | static int proc_parse_inet_addr(char *loc, char *rem, int family, struct |
1584 | sockstat *s) | |
8250bc9f VK |
1585 | { |
1586 | s->local.family = s->remote.family = family; | |
1587 | if (family == AF_INET) { | |
1588 | sscanf(loc, "%x:%x", s->local.data, (unsigned*)&s->lport); | |
1589 | sscanf(rem, "%x:%x", s->remote.data, (unsigned*)&s->rport); | |
1590 | s->local.bytelen = s->remote.bytelen = 4; | |
1591 | return 0; | |
1592 | } else { | |
1593 | sscanf(loc, "%08x%08x%08x%08x:%x", | |
1594 | s->local.data, | |
1595 | s->local.data + 1, | |
1596 | s->local.data + 2, | |
1597 | s->local.data + 3, | |
1598 | &s->lport); | |
1599 | sscanf(rem, "%08x%08x%08x%08x:%x", | |
1600 | s->remote.data, | |
1601 | s->remote.data + 1, | |
1602 | s->remote.data + 2, | |
1603 | s->remote.data + 3, | |
1604 | &s->rport); | |
1605 | s->local.bytelen = s->remote.bytelen = 16; | |
1606 | return 0; | |
1607 | } | |
1608 | return -1; | |
1609 | } | |
1610 | ||
1611 | static int proc_inet_split_line(char *line, char **loc, char **rem, char **data) | |
aba5acdf | 1612 | { |
aba5acdf | 1613 | char *p; |
ae665a52 | 1614 | |
aba5acdf SH |
1615 | if ((p = strchr(line, ':')) == NULL) |
1616 | return -1; | |
ae665a52 | 1617 | |
8250bc9f VK |
1618 | *loc = p+2; |
1619 | if ((p = strchr(*loc, ':')) == NULL) | |
aba5acdf | 1620 | return -1; |
ae665a52 | 1621 | |
8250bc9f VK |
1622 | p[5] = 0; |
1623 | *rem = p+6; | |
1624 | if ((p = strchr(*rem, ':')) == NULL) | |
aba5acdf | 1625 | return -1; |
8250bc9f | 1626 | |
aba5acdf | 1627 | p[5] = 0; |
8250bc9f VK |
1628 | *data = p+6; |
1629 | return 0; | |
1630 | } | |
ae665a52 | 1631 | |
8250bc9f VK |
1632 | static char *sprint_bw(char *buf, double bw) |
1633 | { | |
1634 | if (bw > 1000000.) | |
1635 | sprintf(buf,"%.1fM", bw / 1000000.); | |
1636 | else if (bw > 1000.) | |
1637 | sprintf(buf,"%.1fK", bw / 1000.); | |
1638 | else | |
1639 | sprintf(buf, "%g", bw); | |
aba5acdf | 1640 | |
8250bc9f VK |
1641 | return buf; |
1642 | } | |
ae665a52 | 1643 | |
8250bc9f VK |
1644 | static void tcp_stats_print(struct tcpstat *s) |
1645 | { | |
1646 | char b1[64]; | |
1647 | ||
1648 | if (s->has_ts_opt) | |
1649 | printf(" ts"); | |
1650 | if (s->has_sack_opt) | |
1651 | printf(" sack"); | |
1652 | if (s->has_ecn_opt) | |
1653 | printf(" ecn"); | |
1654 | if (s->has_ecnseen_opt) | |
1655 | printf(" ecnseen"); | |
1656 | if (s->has_fastopen_opt) | |
1657 | printf(" fastopen"); | |
d2055ea5 | 1658 | if (s->cong_alg[0]) |
8250bc9f VK |
1659 | printf(" %s", s->cong_alg); |
1660 | if (s->has_wscale_opt) | |
1661 | printf(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale); | |
1662 | if (s->rto) | |
1663 | printf(" rto:%g", s->rto); | |
1664 | if (s->backoff) | |
1665 | printf(" backoff:%u", s->backoff); | |
1666 | if (s->rtt) | |
1667 | printf(" rtt:%g/%g", s->rtt, s->rttvar); | |
1668 | if (s->ato) | |
1669 | printf(" ato:%g", s->ato); | |
1670 | ||
1671 | if (s->qack) | |
1672 | printf(" qack:%d", s->qack); | |
1673 | if (s->qack & 1) | |
1674 | printf(" bidir"); | |
1675 | ||
1676 | if (s->mss) | |
1677 | printf(" mss:%d", s->mss); | |
3bf5445c | 1678 | if (s->cwnd) |
8250bc9f VK |
1679 | printf(" cwnd:%d", s->cwnd); |
1680 | if (s->ssthresh) | |
1681 | printf(" ssthresh:%d", s->ssthresh); | |
1682 | ||
1a4dda71 ED |
1683 | if (s->bytes_acked) |
1684 | printf(" bytes_acked:%llu", s->bytes_acked); | |
1685 | if (s->bytes_received) | |
1686 | printf(" bytes_received:%llu", s->bytes_received); | |
ecb435ea CG |
1687 | if (s->segs_out) |
1688 | printf(" segs_out:%u", s->segs_out); | |
1689 | if (s->segs_in) | |
1690 | printf(" segs_in:%u", s->segs_in); | |
1a4dda71 | 1691 | |
8250bc9f VK |
1692 | if (s->dctcp && s->dctcp->enabled) { |
1693 | struct dctcpstat *dctcp = s->dctcp; | |
1694 | ||
3bf5445c | 1695 | printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)", |
8250bc9f VK |
1696 | dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn, |
1697 | dctcp->ab_tot); | |
1698 | } else if (s->dctcp) { | |
3bf5445c | 1699 | printf(" dctcp:fallback_mode"); |
8250bc9f VK |
1700 | } |
1701 | ||
1702 | if (s->send_bps) | |
1703 | printf(" send %sbps", sprint_bw(b1, s->send_bps)); | |
1704 | if (s->lastsnd) | |
1705 | printf(" lastsnd:%u", s->lastsnd); | |
1706 | if (s->lastrcv) | |
1707 | printf(" lastrcv:%u", s->lastrcv); | |
1708 | if (s->lastack) | |
1709 | printf(" lastack:%u", s->lastack); | |
1710 | ||
1711 | if (s->pacing_rate) { | |
1712 | printf(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate)); | |
1713 | if (s->pacing_rate_max) | |
1714 | printf("/%sbps", sprint_bw(b1, | |
1715 | s->pacing_rate_max)); | |
1716 | } | |
1717 | ||
1718 | if (s->unacked) | |
1719 | printf(" unacked:%u", s->unacked); | |
1720 | if (s->retrans || s->retrans_total) | |
1721 | printf(" retrans:%u/%u", s->retrans, s->retrans_total); | |
1722 | if (s->lost) | |
1723 | printf(" lost:%u", s->lost); | |
055840f2 | 1724 | if (s->sacked && s->ss.state != SS_LISTEN) |
8250bc9f VK |
1725 | printf(" sacked:%u", s->sacked); |
1726 | if (s->fackets) | |
1727 | printf(" fackets:%u", s->fackets); | |
1728 | if (s->reordering != 3) | |
1729 | printf(" reordering:%d", s->reordering); | |
1730 | if (s->rcv_rtt) | |
1731 | printf(" rcv_rtt:%g", s->rcv_rtt); | |
1732 | if (s->rcv_space) | |
1733 | printf(" rcv_space:%d", s->rcv_space); | |
1734 | } | |
1735 | ||
055840f2 VK |
1736 | static void tcp_timer_print(struct tcpstat *s) |
1737 | { | |
1738 | if (s->timer) { | |
1739 | if (s->timer > 4) | |
1740 | s->timer = 5; | |
1741 | printf(" timer:(%s,%s,%d)", | |
1742 | tmr_name[s->timer], | |
1743 | print_ms_timer(s->timeout), | |
1744 | s->retrans); | |
1745 | } | |
1746 | } | |
1747 | ||
8250bc9f VK |
1748 | static int tcp_show_line(char *line, const struct filter *f, int family) |
1749 | { | |
1750 | int rto = 0, ato = 0; | |
1751 | struct tcpstat s = {}; | |
1752 | char *loc, *rem, *data; | |
1753 | char opt[256]; | |
1754 | int n; | |
1755 | int hz = get_user_hz(); | |
1756 | ||
1757 | if (proc_inet_split_line(line, &loc, &rem, &data)) | |
1758 | return -1; | |
1759 | ||
1760 | int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0'); | |
1761 | if (!(f->states & (1 << state))) | |
1762 | return 0; | |
1763 | ||
055840f2 | 1764 | proc_parse_inet_addr(loc, rem, family, &s.ss); |
ae665a52 | 1765 | |
055840f2 | 1766 | if (f->f && run_ssfilter(f->f, &s.ss) == 0) |
aba5acdf | 1767 | return 0; |
ae665a52 | 1768 | |
aba5acdf | 1769 | opt[0] = 0; |
e7113c61 | 1770 | n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %d %d %[^\n]\n", |
055840f2 VK |
1771 | &s.ss.state, &s.ss.wq, &s.ss.rq, |
1772 | &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes, | |
1773 | &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd, | |
1774 | &s.ssthresh, opt); | |
ae665a52 | 1775 | |
aba5acdf SH |
1776 | if (n < 17) |
1777 | opt[0] = 0; | |
ae665a52 | 1778 | |
aba5acdf | 1779 | if (n < 12) { |
8250bc9f | 1780 | rto = 0; |
aba5acdf SH |
1781 | s.cwnd = 2; |
1782 | s.ssthresh = -1; | |
8250bc9f | 1783 | ato = s.qack = 0; |
aba5acdf | 1784 | } |
ae665a52 | 1785 | |
8250bc9f VK |
1786 | s.retrans = s.timer != 1 ? s.probes : s.retrans; |
1787 | s.timeout = (s.timeout * 1000 + hz - 1) / hz; | |
1788 | s.ato = (double)ato / hz; | |
1789 | s.qack /= 2; | |
1790 | s.rto = (double)rto; | |
1791 | s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh; | |
1792 | s.rto = s.rto != 3 * hz ? s.rto / hz : 0; | |
ae665a52 | 1793 | |
055840f2 VK |
1794 | inet_stats_print(&s.ss, IPPROTO_TCP); |
1795 | ||
1796 | if (show_options) | |
1797 | tcp_timer_print(&s); | |
116ac927 | 1798 | |
aba5acdf | 1799 | if (show_details) { |
f1b39e1b | 1800 | sock_details_print(&s.ss); |
aba5acdf SH |
1801 | if (opt[0]) |
1802 | printf(" opt:\"%s\"", opt); | |
1803 | } | |
aba5acdf | 1804 | |
8250bc9f VK |
1805 | if (show_tcpinfo) |
1806 | tcp_stats_print(&s); | |
1807 | ||
1808 | printf("\n"); | |
aba5acdf SH |
1809 | return 0; |
1810 | } | |
1811 | ||
ab01dbbb SH |
1812 | static int generic_record_read(FILE *fp, |
1813 | int (*worker)(char*, const struct filter *, int), | |
1814 | const struct filter *f, int fam) | |
aba5acdf | 1815 | { |
ab01dbbb | 1816 | char line[256]; |
aba5acdf | 1817 | |
ab01dbbb SH |
1818 | /* skip header */ |
1819 | if (fgets(line, sizeof(line), fp) == NULL) | |
aba5acdf | 1820 | goto outerr; |
ab01dbbb SH |
1821 | |
1822 | while (fgets(line, sizeof(line), fp) != NULL) { | |
1823 | int n = strlen(line); | |
1824 | if (n == 0 || line[n-1] != '\n') { | |
1825 | errno = -EINVAL; | |
1826 | return -1; | |
aba5acdf | 1827 | } |
ab01dbbb | 1828 | line[n-1] = 0; |
aba5acdf | 1829 | |
ab01dbbb SH |
1830 | if (worker(line, f, fam) < 0) |
1831 | return 0; | |
1832 | } | |
aba5acdf | 1833 | outerr: |
ab01dbbb SH |
1834 | |
1835 | return ferror(fp) ? -1 : 0; | |
aba5acdf | 1836 | } |
ae665a52 | 1837 | |
51ff9f24 HFS |
1838 | static void print_skmeminfo(struct rtattr *tb[], int attrtype) |
1839 | { | |
1840 | const __u32 *skmeminfo; | |
db08bdb8 VK |
1841 | |
1842 | if (!tb[attrtype]) { | |
1843 | if (attrtype == INET_DIAG_SKMEMINFO) { | |
1844 | if (!tb[INET_DIAG_MEMINFO]) | |
1845 | return; | |
1846 | ||
1847 | const struct inet_diag_meminfo *minfo = | |
1848 | RTA_DATA(tb[INET_DIAG_MEMINFO]); | |
1849 | ||
1850 | printf(" mem:(r%u,w%u,f%u,t%u)", | |
1851 | minfo->idiag_rmem, | |
1852 | minfo->idiag_wmem, | |
1853 | minfo->idiag_fmem, | |
1854 | minfo->idiag_tmem); | |
1855 | } | |
51ff9f24 | 1856 | return; |
db08bdb8 VK |
1857 | } |
1858 | ||
51ff9f24 HFS |
1859 | skmeminfo = RTA_DATA(tb[attrtype]); |
1860 | ||
1861 | printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u", | |
1862 | skmeminfo[SK_MEMINFO_RMEM_ALLOC], | |
1863 | skmeminfo[SK_MEMINFO_RCVBUF], | |
1864 | skmeminfo[SK_MEMINFO_WMEM_ALLOC], | |
1865 | skmeminfo[SK_MEMINFO_SNDBUF], | |
1866 | skmeminfo[SK_MEMINFO_FWD_ALLOC], | |
1867 | skmeminfo[SK_MEMINFO_WMEM_QUEUED], | |
1868 | skmeminfo[SK_MEMINFO_OPTMEM]); | |
1869 | ||
1870 | if (RTA_PAYLOAD(tb[attrtype]) >= | |
1871 | (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32)) | |
1872 | printf(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]); | |
1873 | ||
1874 | printf(")"); | |
1875 | } | |
1876 | ||
8250bc9f VK |
1877 | #define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt)) |
1878 | ||
5b816047 PE |
1879 | static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r, |
1880 | struct rtattr *tb[]) | |
7d105b56 | 1881 | { |
b4b0b7d5 | 1882 | double rtt = 0; |
8250bc9f | 1883 | struct tcpstat s = {}; |
7d105b56 | 1884 | |
055840f2 VK |
1885 | s.ss.state = r->idiag_state; |
1886 | ||
db08bdb8 | 1887 | print_skmeminfo(tb, INET_DIAG_SKMEMINFO); |
7d105b56 | 1888 | |
351efcde | 1889 | if (tb[INET_DIAG_INFO]) { |
05e18118 | 1890 | struct tcp_info *info; |
351efcde | 1891 | int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]); |
05e18118 SH |
1892 | |
1893 | /* workaround for older kernels with less fields */ | |
1894 | if (len < sizeof(*info)) { | |
1895 | info = alloca(sizeof(*info)); | |
351efcde | 1896 | memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len); |
656e8fdd | 1897 | memset((char *)info + len, 0, sizeof(*info) - len); |
05e18118 | 1898 | } else |
351efcde | 1899 | info = RTA_DATA(tb[INET_DIAG_INFO]); |
05e18118 | 1900 | |
b4b0b7d5 | 1901 | if (show_options) { |
8250bc9f VK |
1902 | s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS); |
1903 | s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK); | |
1904 | s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN); | |
1905 | s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN); | |
1906 | s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA); | |
b4b0b7d5 | 1907 | } |
52d5ac3f | 1908 | |
d2055ea5 ED |
1909 | if (tb[INET_DIAG_CONG]) |
1910 | strncpy(s.cong_alg, | |
1911 | rta_getattr_str(tb[INET_DIAG_CONG]), | |
1912 | sizeof(s.cong_alg) - 1); | |
8250bc9f VK |
1913 | |
1914 | if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) { | |
1915 | s.has_wscale_opt = true; | |
1916 | s.snd_wscale = info->tcpi_snd_wscale; | |
1917 | s.rcv_wscale = info->tcpi_rcv_wscale; | |
1918 | } | |
ea8fc104 | 1919 | |
7d105b56 | 1920 | if (info->tcpi_rto && info->tcpi_rto != 3000000) |
8250bc9f VK |
1921 | s.rto = (double)info->tcpi_rto / 1000; |
1922 | ||
1923 | s.backoff = info->tcpi_backoff; | |
1924 | s.rtt = (double)info->tcpi_rtt / 1000; | |
1925 | s.rttvar = (double)info->tcpi_rttvar / 1000; | |
11ba90fc | 1926 | s.ato = (double)info->tcpi_ato / 1000; |
8250bc9f VK |
1927 | s.mss = info->tcpi_snd_mss; |
1928 | s.rcv_space = info->tcpi_rcv_space; | |
1929 | s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000; | |
1930 | s.lastsnd = info->tcpi_last_data_sent; | |
1931 | s.lastrcv = info->tcpi_last_data_recv; | |
1932 | s.lastack = info->tcpi_last_ack_recv; | |
1933 | s.unacked = info->tcpi_unacked; | |
1934 | s.retrans = info->tcpi_retrans; | |
1935 | s.retrans_total = info->tcpi_total_retrans; | |
1936 | s.lost = info->tcpi_lost; | |
1937 | s.sacked = info->tcpi_sacked; | |
1938 | s.reordering = info->tcpi_reordering; | |
1939 | s.rcv_space = info->tcpi_rcv_space; | |
1940 | s.cwnd = info->tcpi_snd_cwnd; | |
1941 | ||
7d105b56 | 1942 | if (info->tcpi_snd_ssthresh < 0xFFFF) |
8250bc9f | 1943 | s.ssthresh = info->tcpi_snd_ssthresh; |
52d5ac3f | 1944 | |
b4b0b7d5 | 1945 | rtt = (double) info->tcpi_rtt; |
351efcde | 1946 | if (tb[INET_DIAG_VEGASINFO]) { |
05e18118 | 1947 | const struct tcpvegas_info *vinfo |
351efcde | 1948 | = RTA_DATA(tb[INET_DIAG_VEGASINFO]); |
7d105b56 | 1949 | |
ae665a52 | 1950 | if (vinfo->tcpv_enabled && |
8250bc9f | 1951 | vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff) |
ea8fc104 | 1952 | rtt = vinfo->tcpv_rtt; |
b4b0b7d5 SH |
1953 | } |
1954 | ||
907e1aca | 1955 | if (tb[INET_DIAG_DCTCPINFO]) { |
8250bc9f VK |
1956 | struct dctcpstat *dctcp = malloc(sizeof(struct |
1957 | dctcpstat)); | |
1958 | ||
907e1aca DB |
1959 | const struct tcp_dctcp_info *dinfo |
1960 | = RTA_DATA(tb[INET_DIAG_DCTCPINFO]); | |
1961 | ||
8250bc9f VK |
1962 | dctcp->enabled = !!dinfo->dctcp_enabled; |
1963 | dctcp->ce_state = dinfo->dctcp_ce_state; | |
1964 | dctcp->alpha = dinfo->dctcp_alpha; | |
1965 | dctcp->ab_ecn = dinfo->dctcp_ab_ecn; | |
1966 | dctcp->ab_tot = dinfo->dctcp_ab_tot; | |
1967 | s.dctcp = dctcp; | |
907e1aca DB |
1968 | } |
1969 | ||
b4b0b7d5 | 1970 | if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) { |
8250bc9f VK |
1971 | s.send_bps = (double) info->tcpi_snd_cwnd * |
1972 | (double)info->tcpi_snd_mss * 8000000. / rtt; | |
7d105b56 | 1973 | } |
b4b0b7d5 | 1974 | |
eb6028b2 | 1975 | if (info->tcpi_pacing_rate && |
8250bc9f VK |
1976 | info->tcpi_pacing_rate != ~0ULL) { |
1977 | s.pacing_rate = info->tcpi_pacing_rate * 8.; | |
eb6028b2 ED |
1978 | |
1979 | if (info->tcpi_max_pacing_rate && | |
8250bc9f VK |
1980 | info->tcpi_max_pacing_rate != ~0ULL) |
1981 | s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.; | |
eb6028b2 | 1982 | } |
1a4dda71 ED |
1983 | s.bytes_acked = info->tcpi_bytes_acked; |
1984 | s.bytes_received = info->tcpi_bytes_received; | |
ecb435ea CG |
1985 | s.segs_out = info->tcpi_segs_out; |
1986 | s.segs_in = info->tcpi_segs_in; | |
8250bc9f | 1987 | tcp_stats_print(&s); |
92de1c2c | 1988 | free(s.dctcp); |
77a8ca81 | 1989 | } |
77a8ca81 PE |
1990 | } |
1991 | ||
1992 | static int inet_show_sock(struct nlmsghdr *nlh, struct filter *f, int protocol) | |
aba5acdf | 1993 | { |
5b816047 | 1994 | struct rtattr * tb[INET_DIAG_MAX+1]; |
351efcde | 1995 | struct inet_diag_msg *r = NLMSG_DATA(nlh); |
055840f2 | 1996 | struct sockstat s = {}; |
aba5acdf | 1997 | |
5b816047 PE |
1998 | parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr*)(r+1), |
1999 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); | |
2000 | ||
f1b39e1b VK |
2001 | s.state = r->idiag_state; |
2002 | s.local.family = s.remote.family = r->idiag_family; | |
2003 | s.lport = ntohs(r->id.idiag_sport); | |
2004 | s.rport = ntohs(r->id.idiag_dport); | |
2005 | s.wq = r->idiag_wqueue; | |
2006 | s.rq = r->idiag_rqueue; | |
2007 | s.ino = r->idiag_inode; | |
2008 | s.uid = r->idiag_uid; | |
2009 | s.iface = r->id.idiag_if; | |
2010 | s.sk = cookie_sk_get(&r->id.idiag_cookie[0]); | |
8250bc9f | 2011 | |
aba5acdf SH |
2012 | if (s.local.family == AF_INET) { |
2013 | s.local.bytelen = s.remote.bytelen = 4; | |
2014 | } else { | |
2015 | s.local.bytelen = s.remote.bytelen = 16; | |
2016 | } | |
8250bc9f | 2017 | |
351efcde SH |
2018 | memcpy(s.local.data, r->id.idiag_src, s.local.bytelen); |
2019 | memcpy(s.remote.data, r->id.idiag_dst, s.local.bytelen); | |
aba5acdf SH |
2020 | |
2021 | if (f && f->f && run_ssfilter(f->f, &s) == 0) | |
2022 | return 0; | |
2023 | ||
6885e3bf CG |
2024 | if (tb[INET_DIAG_PROTOCOL]) |
2025 | protocol = *(__u8 *)RTA_DATA(tb[INET_DIAG_PROTOCOL]); | |
2026 | ||
8250bc9f | 2027 | inet_stats_print(&s, protocol); |
116ac927 | 2028 | |
055840f2 VK |
2029 | if (show_options) { |
2030 | struct tcpstat t = {}; | |
2031 | ||
2032 | t.timer = r->idiag_timer; | |
2033 | t.timeout = r->idiag_expires; | |
2034 | t.retrans = r->idiag_retrans; | |
2035 | tcp_timer_print(&t); | |
2036 | } | |
2037 | ||
aba5acdf | 2038 | if (show_details) { |
f1b39e1b | 2039 | sock_details_print(&s); |
f32dc746 PS |
2040 | if (s.local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY]) { |
2041 | unsigned char v6only; | |
2042 | v6only = *(__u8 *)RTA_DATA(tb[INET_DIAG_SKV6ONLY]); | |
2043 | printf(" v6only:%u", v6only); | |
2044 | } | |
5b816047 PE |
2045 | if (tb[INET_DIAG_SHUTDOWN]) { |
2046 | unsigned char mask; | |
2047 | mask = *(__u8 *)RTA_DATA(tb[INET_DIAG_SHUTDOWN]); | |
2048 | printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>'); | |
2049 | } | |
aba5acdf | 2050 | } |
8250bc9f | 2051 | |
aba5acdf | 2052 | if (show_mem || show_tcpinfo) { |
7d105b56 | 2053 | printf("\n\t"); |
5b816047 | 2054 | tcp_show_info(nlh, r, tb); |
aba5acdf | 2055 | } |
7d105b56 | 2056 | |
aba5acdf | 2057 | printf("\n"); |
aba5acdf | 2058 | return 0; |
aba5acdf SH |
2059 | } |
2060 | ||
746a695f | 2061 | static int tcpdiag_send(int fd, int protocol, struct filter *f) |
aba5acdf | 2062 | { |
aba5acdf SH |
2063 | struct sockaddr_nl nladdr; |
2064 | struct { | |
2065 | struct nlmsghdr nlh; | |
351efcde | 2066 | struct inet_diag_req r; |
aba5acdf SH |
2067 | } req; |
2068 | char *bc = NULL; | |
2069 | int bclen; | |
2070 | struct msghdr msg; | |
2071 | struct rtattr rta; | |
aba5acdf SH |
2072 | struct iovec iov[3]; |
2073 | ||
346f8ca8 PE |
2074 | if (protocol == IPPROTO_UDP) |
2075 | return -1; | |
2076 | ||
aba5acdf SH |
2077 | memset(&nladdr, 0, sizeof(nladdr)); |
2078 | nladdr.nl_family = AF_NETLINK; | |
2079 | ||
2080 | req.nlh.nlmsg_len = sizeof(req); | |
3fe5b534 PE |
2081 | if (protocol == IPPROTO_TCP) |
2082 | req.nlh.nlmsg_type = TCPDIAG_GETSOCK; | |
2083 | else | |
2084 | req.nlh.nlmsg_type = DCCPDIAG_GETSOCK; | |
aba5acdf SH |
2085 | req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST; |
2086 | req.nlh.nlmsg_pid = 0; | |
8a4025f6 | 2087 | req.nlh.nlmsg_seq = MAGIC_SEQ; |
aba5acdf | 2088 | memset(&req.r, 0, sizeof(req.r)); |
351efcde SH |
2089 | req.r.idiag_family = AF_INET; |
2090 | req.r.idiag_states = f->states; | |
910b0397 | 2091 | if (show_mem) { |
ae665a52 | 2092 | req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1)); |
910b0397 SW |
2093 | req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1)); |
2094 | } | |
b4b0b7d5 | 2095 | |
7d105b56 | 2096 | if (show_tcpinfo) { |
351efcde SH |
2097 | req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1)); |
2098 | req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1)); | |
2099 | req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1)); | |
7d105b56 | 2100 | } |
aba5acdf | 2101 | |
ae665a52 SH |
2102 | iov[0] = (struct iovec){ |
2103 | .iov_base = &req, | |
2104 | .iov_len = sizeof(req) | |
ea8fc104 | 2105 | }; |
aba5acdf SH |
2106 | if (f->f) { |
2107 | bclen = ssfilter_bytecompile(f->f, &bc); | |
351efcde | 2108 | rta.rta_type = INET_DIAG_REQ_BYTECODE; |
aba5acdf SH |
2109 | rta.rta_len = RTA_LENGTH(bclen); |
2110 | iov[1] = (struct iovec){ &rta, sizeof(rta) }; | |
2111 | iov[2] = (struct iovec){ bc, bclen }; | |
2112 | req.nlh.nlmsg_len += RTA_LENGTH(bclen); | |
2113 | } | |
2114 | ||
2115 | msg = (struct msghdr) { | |
ae665a52 | 2116 | .msg_name = (void*)&nladdr, |
ea8fc104 | 2117 | .msg_namelen = sizeof(nladdr), |
ae665a52 | 2118 | .msg_iov = iov, |
ea8fc104 | 2119 | .msg_iovlen = f->f ? 3 : 1, |
aba5acdf SH |
2120 | }; |
2121 | ||
930a75f9 ED |
2122 | if (sendmsg(fd, &msg, 0) < 0) { |
2123 | close(fd); | |
aba5acdf | 2124 | return -1; |
930a75f9 | 2125 | } |
aba5acdf | 2126 | |
746a695f PE |
2127 | return 0; |
2128 | } | |
2129 | ||
886d19d6 PE |
2130 | static int sockdiag_send(int family, int fd, int protocol, struct filter *f) |
2131 | { | |
2132 | struct sockaddr_nl nladdr; | |
5fb421d4 | 2133 | DIAG_REQUEST(req, struct inet_diag_req_v2 r); |
886d19d6 PE |
2134 | char *bc = NULL; |
2135 | int bclen; | |
2136 | struct msghdr msg; | |
2137 | struct rtattr rta; | |
2138 | struct iovec iov[3]; | |
2139 | ||
2140 | if (family == PF_UNSPEC) | |
2141 | return tcpdiag_send(fd, protocol, f); | |
2142 | ||
2143 | memset(&nladdr, 0, sizeof(nladdr)); | |
2144 | nladdr.nl_family = AF_NETLINK; | |
2145 | ||
886d19d6 PE |
2146 | memset(&req.r, 0, sizeof(req.r)); |
2147 | req.r.sdiag_family = family; | |
2148 | req.r.sdiag_protocol = protocol; | |
2149 | req.r.idiag_states = f->states; | |
2150 | if (show_mem) { | |
2151 | req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1)); | |
2152 | req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1)); | |
2153 | } | |
2154 | ||
2155 | if (show_tcpinfo) { | |
2156 | req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1)); | |
2157 | req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1)); | |
2158 | req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1)); | |
2159 | } | |
2160 | ||
2161 | iov[0] = (struct iovec){ | |
2162 | .iov_base = &req, | |
2163 | .iov_len = sizeof(req) | |
2164 | }; | |
2165 | if (f->f) { | |
2166 | bclen = ssfilter_bytecompile(f->f, &bc); | |
2167 | rta.rta_type = INET_DIAG_REQ_BYTECODE; | |
2168 | rta.rta_len = RTA_LENGTH(bclen); | |
2169 | iov[1] = (struct iovec){ &rta, sizeof(rta) }; | |
2170 | iov[2] = (struct iovec){ bc, bclen }; | |
2171 | req.nlh.nlmsg_len += RTA_LENGTH(bclen); | |
2172 | } | |
2173 | ||
2174 | msg = (struct msghdr) { | |
2175 | .msg_name = (void*)&nladdr, | |
2176 | .msg_namelen = sizeof(nladdr), | |
2177 | .msg_iov = iov, | |
2178 | .msg_iovlen = f->f ? 3 : 1, | |
2179 | }; | |
2180 | ||
2181 | if (sendmsg(fd, &msg, 0) < 0) { | |
2182 | close(fd); | |
2183 | return -1; | |
2184 | } | |
2185 | ||
2186 | return 0; | |
2187 | } | |
2188 | ||
486ccd99 VK |
2189 | struct inet_diag_arg { |
2190 | struct filter *f; | |
2191 | int protocol; | |
2192 | }; | |
aba5acdf | 2193 | |
486ccd99 VK |
2194 | static int show_one_inet_sock(const struct sockaddr_nl *addr, |
2195 | struct nlmsghdr *h, void *arg) | |
2196 | { | |
2197 | int err; | |
2198 | struct inet_diag_arg *diag_arg = arg; | |
2199 | struct inet_diag_msg *r = NLMSG_DATA(h); | |
aba5acdf | 2200 | |
486ccd99 VK |
2201 | if (!(diag_arg->f->families & (1 << r->idiag_family))) |
2202 | return 0; | |
6885e3bf | 2203 | if ((err = inet_show_sock(h, diag_arg->f, diag_arg->protocol)) < 0) |
486ccd99 | 2204 | return err; |
aba5acdf | 2205 | |
486ccd99 VK |
2206 | return 0; |
2207 | } | |
886d19d6 | 2208 | |
486ccd99 VK |
2209 | static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol) |
2210 | { | |
2211 | int err = 0; | |
2212 | struct rtnl_handle rth; | |
2213 | int family = PF_INET; | |
2214 | struct inet_diag_arg arg = { .f = f, .protocol = protocol }; | |
886d19d6 | 2215 | |
486ccd99 VK |
2216 | if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG)) |
2217 | return -1; | |
2218 | rth.dump = MAGIC_SEQ; | |
2219 | rth.dump_fp = dump_fp; | |
518af1e0 ED |
2220 | if (preferred_family == PF_INET6) |
2221 | family = PF_INET6; | |
886d19d6 | 2222 | |
486ccd99 VK |
2223 | again: |
2224 | if ((err = sockdiag_send(family, rth.fd, protocol, f))) | |
2225 | goto Exit; | |
aba5acdf | 2226 | |
486ccd99 VK |
2227 | if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) { |
2228 | if (family != PF_UNSPEC) { | |
2229 | family = PF_UNSPEC; | |
2230 | goto again; | |
aba5acdf | 2231 | } |
486ccd99 | 2232 | goto Exit; |
aba5acdf | 2233 | } |
518af1e0 | 2234 | if (family == PF_INET && preferred_family != PF_INET) { |
886d19d6 PE |
2235 | family = PF_INET6; |
2236 | goto again; | |
2237 | } | |
2238 | ||
486ccd99 VK |
2239 | Exit: |
2240 | rtnl_close(&rth); | |
2241 | return err; | |
aba5acdf SH |
2242 | } |
2243 | ||
ab01dbbb | 2244 | static int tcp_show_netlink_file(struct filter *f) |
aba5acdf SH |
2245 | { |
2246 | FILE *fp; | |
e557212e | 2247 | char buf[16384]; |
aba5acdf SH |
2248 | |
2249 | if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) { | |
2250 | perror("fopen($TCPDIAG_FILE)"); | |
2251 | return -1; | |
2252 | } | |
2253 | ||
2254 | while (1) { | |
2255 | int status, err; | |
2256 | struct nlmsghdr *h = (struct nlmsghdr*)buf; | |
2257 | ||
2258 | status = fread(buf, 1, sizeof(*h), fp); | |
2259 | if (status < 0) { | |
2260 | perror("Reading header from $TCPDIAG_FILE"); | |
2261 | return -1; | |
2262 | } | |
2263 | if (status != sizeof(*h)) { | |
2264 | perror("Unexpected EOF reading $TCPDIAG_FILE"); | |
2265 | return -1; | |
2266 | } | |
2267 | ||
2268 | status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp); | |
2269 | ||
2270 | if (status < 0) { | |
2271 | perror("Reading $TCPDIAG_FILE"); | |
2272 | return -1; | |
2273 | } | |
2274 | if (status + sizeof(*h) < h->nlmsg_len) { | |
2275 | perror("Unexpected EOF reading $TCPDIAG_FILE"); | |
2276 | return -1; | |
2277 | } | |
2278 | ||
2279 | /* The only legal exit point */ | |
2280 | if (h->nlmsg_type == NLMSG_DONE) | |
2281 | return 0; | |
2282 | ||
2283 | if (h->nlmsg_type == NLMSG_ERROR) { | |
2284 | struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h); | |
2285 | if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) { | |
2286 | fprintf(stderr, "ERROR truncated\n"); | |
2287 | } else { | |
2288 | errno = -err->error; | |
2289 | perror("TCPDIAG answered"); | |
2290 | } | |
2291 | return -1; | |
2292 | } | |
2293 | ||
77a8ca81 | 2294 | err = inet_show_sock(h, f, IPPROTO_TCP); |
aba5acdf SH |
2295 | if (err < 0) |
2296 | return err; | |
2297 | } | |
2298 | } | |
2299 | ||
ab01dbbb | 2300 | static int tcp_show(struct filter *f, int socktype) |
aba5acdf | 2301 | { |
ab01dbbb | 2302 | FILE *fp = NULL; |
aba5acdf SH |
2303 | char *buf = NULL; |
2304 | int bufsize = 64*1024; | |
2305 | ||
1527a17e VK |
2306 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) |
2307 | return 0; | |
2308 | ||
aba5acdf SH |
2309 | dg_proto = TCP_PROTO; |
2310 | ||
2311 | if (getenv("TCPDIAG_FILE")) | |
2312 | return tcp_show_netlink_file(f); | |
2313 | ||
2314 | if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT") | |
3fe5b534 | 2315 | && inet_show_netlink(f, NULL, socktype) == 0) |
aba5acdf SH |
2316 | return 0; |
2317 | ||
2318 | /* Sigh... We have to parse /proc/net/tcp... */ | |
2319 | ||
ab01dbbb | 2320 | |
aba5acdf SH |
2321 | /* Estimate amount of sockets and try to allocate |
2322 | * huge buffer to read all the table at one read. | |
2323 | * Limit it by 16MB though. The assumption is: as soon as | |
2324 | * kernel was able to hold information about N connections, | |
2325 | * it is able to give us some memory for snapshot. | |
2326 | */ | |
2327 | if (1) { | |
a221d621 BL |
2328 | get_slabstat(&slabstat); |
2329 | ||
aba5acdf SH |
2330 | int guess = slabstat.socks+slabstat.tcp_syns; |
2331 | if (f->states&(1<<SS_TIME_WAIT)) | |
2332 | guess += slabstat.tcp_tws; | |
2333 | if (guess > (16*1024*1024)/128) | |
2334 | guess = (16*1024*1024)/128; | |
2335 | guess *= 128; | |
2336 | if (guess > bufsize) | |
2337 | bufsize = guess; | |
2338 | } | |
2339 | while (bufsize >= 64*1024) { | |
2340 | if ((buf = malloc(bufsize)) != NULL) | |
2341 | break; | |
2342 | bufsize /= 2; | |
2343 | } | |
2344 | if (buf == NULL) { | |
2345 | errno = ENOMEM; | |
2346 | return -1; | |
2347 | } | |
2348 | ||
2349 | if (f->families & (1<<AF_INET)) { | |
69cae645 | 2350 | if ((fp = net_tcp_open()) == NULL) |
aba5acdf | 2351 | goto outerr; |
ab01dbbb SH |
2352 | |
2353 | setbuffer(fp, buf, bufsize); | |
2354 | if (generic_record_read(fp, tcp_show_line, f, AF_INET)) | |
aba5acdf | 2355 | goto outerr; |
ab01dbbb | 2356 | fclose(fp); |
aba5acdf SH |
2357 | } |
2358 | ||
2359 | if ((f->families & (1<<AF_INET6)) && | |
69cae645 | 2360 | (fp = net_tcp6_open()) != NULL) { |
ab01dbbb SH |
2361 | setbuffer(fp, buf, bufsize); |
2362 | if (generic_record_read(fp, tcp_show_line, f, AF_INET6)) | |
aba5acdf | 2363 | goto outerr; |
ab01dbbb | 2364 | fclose(fp); |
aba5acdf SH |
2365 | } |
2366 | ||
2367 | free(buf); | |
2368 | return 0; | |
2369 | ||
2370 | outerr: | |
2371 | do { | |
2372 | int saved_errno = errno; | |
92de1c2c | 2373 | free(buf); |
ab01dbbb SH |
2374 | if (fp) |
2375 | fclose(fp); | |
aba5acdf SH |
2376 | errno = saved_errno; |
2377 | return -1; | |
2378 | } while (0); | |
2379 | } | |
2380 | ||
2381 | ||
d1f28cf1 | 2382 | static int dgram_show_line(char *line, const struct filter *f, int family) |
aba5acdf | 2383 | { |
055840f2 | 2384 | struct sockstat s = {}; |
aba5acdf SH |
2385 | char *loc, *rem, *data; |
2386 | char opt[256]; | |
2387 | int n; | |
aba5acdf | 2388 | |
8250bc9f | 2389 | if (proc_inet_split_line(line, &loc, &rem, &data)) |
aba5acdf | 2390 | return -1; |
aba5acdf | 2391 | |
8250bc9f VK |
2392 | int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0'); |
2393 | if (!(f->states & (1 << state))) | |
2394 | return 0; | |
aba5acdf | 2395 | |
8250bc9f | 2396 | proc_parse_inet_addr(loc, rem, family, &s); |
aba5acdf SH |
2397 | |
2398 | if (f->f && run_ssfilter(f->f, &s) == 0) | |
2399 | return 0; | |
2400 | ||
2401 | opt[0] = 0; | |
e7113c61 | 2402 | n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n", |
aba5acdf SH |
2403 | &s.state, &s.wq, &s.rq, |
2404 | &s.uid, &s.ino, | |
2405 | &s.refcnt, &s.sk, opt); | |
2406 | ||
2407 | if (n < 9) | |
2408 | opt[0] = 0; | |
2409 | ||
235c4453 | 2410 | inet_stats_print(&s, dg_proto == UDP_PROTO ? IPPROTO_UDP : 0); |
aba5acdf | 2411 | |
f1b39e1b VK |
2412 | if (show_details && opt[0]) |
2413 | printf(" opt:\"%s\"", opt); | |
aba5acdf | 2414 | |
8250bc9f | 2415 | printf("\n"); |
aba5acdf SH |
2416 | return 0; |
2417 | } | |
2418 | ||
d1f28cf1 | 2419 | static int udp_show(struct filter *f) |
aba5acdf | 2420 | { |
ab01dbbb | 2421 | FILE *fp = NULL; |
aba5acdf | 2422 | |
1527a17e VK |
2423 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) |
2424 | return 0; | |
2425 | ||
ace5cb31 VK |
2426 | dg_proto = UDP_PROTO; |
2427 | ||
346f8ca8 PE |
2428 | if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT") |
2429 | && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0) | |
2430 | return 0; | |
2431 | ||
aba5acdf | 2432 | if (f->families&(1<<AF_INET)) { |
69cae645 | 2433 | if ((fp = net_udp_open()) == NULL) |
aba5acdf | 2434 | goto outerr; |
ab01dbbb | 2435 | if (generic_record_read(fp, dgram_show_line, f, AF_INET)) |
aba5acdf | 2436 | goto outerr; |
ab01dbbb | 2437 | fclose(fp); |
aba5acdf SH |
2438 | } |
2439 | ||
2440 | if ((f->families&(1<<AF_INET6)) && | |
69cae645 | 2441 | (fp = net_udp6_open()) != NULL) { |
ab01dbbb | 2442 | if (generic_record_read(fp, dgram_show_line, f, AF_INET6)) |
aba5acdf | 2443 | goto outerr; |
ab01dbbb | 2444 | fclose(fp); |
aba5acdf SH |
2445 | } |
2446 | return 0; | |
2447 | ||
2448 | outerr: | |
2449 | do { | |
2450 | int saved_errno = errno; | |
ab01dbbb SH |
2451 | if (fp) |
2452 | fclose(fp); | |
aba5acdf SH |
2453 | errno = saved_errno; |
2454 | return -1; | |
2455 | } while (0); | |
2456 | } | |
2457 | ||
d1f28cf1 | 2458 | static int raw_show(struct filter *f) |
aba5acdf | 2459 | { |
ab01dbbb | 2460 | FILE *fp = NULL; |
aba5acdf | 2461 | |
1527a17e VK |
2462 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) |
2463 | return 0; | |
2464 | ||
aba5acdf SH |
2465 | dg_proto = RAW_PROTO; |
2466 | ||
2467 | if (f->families&(1<<AF_INET)) { | |
69cae645 | 2468 | if ((fp = net_raw_open()) == NULL) |
aba5acdf | 2469 | goto outerr; |
ab01dbbb | 2470 | if (generic_record_read(fp, dgram_show_line, f, AF_INET)) |
aba5acdf | 2471 | goto outerr; |
ab01dbbb | 2472 | fclose(fp); |
aba5acdf SH |
2473 | } |
2474 | ||
2475 | if ((f->families&(1<<AF_INET6)) && | |
69cae645 | 2476 | (fp = net_raw6_open()) != NULL) { |
ab01dbbb | 2477 | if (generic_record_read(fp, dgram_show_line, f, AF_INET6)) |
aba5acdf | 2478 | goto outerr; |
ab01dbbb | 2479 | fclose(fp); |
aba5acdf SH |
2480 | } |
2481 | return 0; | |
2482 | ||
2483 | outerr: | |
2484 | do { | |
2485 | int saved_errno = errno; | |
ab01dbbb SH |
2486 | if (fp) |
2487 | fclose(fp); | |
aba5acdf SH |
2488 | errno = saved_errno; |
2489 | return -1; | |
2490 | } while (0); | |
2491 | } | |
2492 | ||
aba5acdf SH |
2493 | int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT, |
2494 | SS_ESTABLISHED, SS_CLOSING }; | |
2495 | ||
ec4d0d8a | 2496 | #define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat)) |
aba5acdf | 2497 | |
ec4d0d8a | 2498 | static void unix_list_free(struct sockstat *list) |
aba5acdf SH |
2499 | { |
2500 | while (list) { | |
ec4d0d8a | 2501 | struct sockstat *s = list; |
ec4d0d8a | 2502 | |
aba5acdf | 2503 | list = list->next; |
99bb68ff | 2504 | free(s->name); |
aba5acdf SH |
2505 | free(s); |
2506 | } | |
2507 | } | |
2508 | ||
30b669d7 MY |
2509 | static const char *unix_netid_name(int type) |
2510 | { | |
2511 | const char *netid; | |
2512 | ||
2513 | switch (type) { | |
2514 | case SOCK_STREAM: | |
2515 | netid = "u_str"; | |
2516 | break; | |
2517 | case SOCK_SEQPACKET: | |
2518 | netid = "u_seq"; | |
2519 | break; | |
2520 | case SOCK_DGRAM: | |
2521 | default: | |
2522 | netid = "u_dgr"; | |
2523 | break; | |
2524 | } | |
2525 | return netid; | |
2526 | } | |
2527 | ||
ec4d0d8a | 2528 | static bool unix_type_skip(struct sockstat *s, struct filter *f) |
bf4ceee6 VK |
2529 | { |
2530 | if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB))) | |
2531 | return true; | |
2532 | if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB))) | |
2533 | return true; | |
2534 | if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB))) | |
2535 | return true; | |
2536 | return false; | |
2537 | } | |
2538 | ||
ec4d0d8a VK |
2539 | static bool unix_use_proc(void) |
2540 | { | |
2541 | return getenv("PROC_NET_UNIX") || getenv("PROC_ROOT"); | |
2542 | } | |
2543 | ||
2544 | static void unix_stats_print(struct sockstat *list, struct filter *f) | |
aba5acdf | 2545 | { |
ec4d0d8a | 2546 | struct sockstat *s; |
99bb68ff | 2547 | char *peer; |
b217df10 | 2548 | char *ctx_buf = NULL; |
ec4d0d8a | 2549 | bool use_proc = unix_use_proc(); |
b217df10 | 2550 | char port_name[30] = {}; |
aba5acdf SH |
2551 | |
2552 | for (s = list; s; s = s->next) { | |
ec4d0d8a | 2553 | if (!(f->states & (1 << s->state))) |
aba5acdf | 2554 | continue; |
bf4ceee6 | 2555 | if (unix_type_skip(s, f)) |
30b669d7 | 2556 | continue; |
aba5acdf | 2557 | |
99bb68ff VK |
2558 | peer = "*"; |
2559 | if (s->peer_name) | |
2560 | peer = s->peer_name; | |
ec4d0d8a VK |
2561 | |
2562 | if (s->rport && use_proc) { | |
2563 | struct sockstat *p; | |
bf4ceee6 | 2564 | |
aba5acdf | 2565 | for (p = list; p; p = p->next) { |
ec4d0d8a | 2566 | if (s->rport == p->lport) |
aba5acdf SH |
2567 | break; |
2568 | } | |
ec4d0d8a | 2569 | |
aba5acdf SH |
2570 | if (!p) { |
2571 | peer = "?"; | |
2572 | } else { | |
99bb68ff | 2573 | peer = p->name ? : "*"; |
aba5acdf SH |
2574 | } |
2575 | } | |
2576 | ||
29999b0f | 2577 | if (use_proc && f->f) { |
99bb68ff VK |
2578 | struct sockstat st; |
2579 | st.local.family = AF_UNIX; | |
2580 | st.remote.family = AF_UNIX; | |
2581 | memcpy(st.local.data, &s->name, sizeof(s->name)); | |
aba5acdf | 2582 | if (strcmp(peer, "*") == 0) |
99bb68ff | 2583 | memset(st.remote.data, 0, sizeof(peer)); |
aba5acdf | 2584 | else |
99bb68ff VK |
2585 | memcpy(st.remote.data, &peer, sizeof(peer)); |
2586 | if (run_ssfilter(f->f, &st) == 0) | |
aba5acdf SH |
2587 | continue; |
2588 | } | |
2589 | ||
2d791bc8 VK |
2590 | sock_state_print(s, unix_netid_name(s->type)); |
2591 | ||
99bb68ff | 2592 | sock_addr_print(s->name ?: "*", " ", |
b217df10 VK |
2593 | int_to_str(s->lport, port_name), NULL); |
2594 | sock_addr_print(peer, " ", int_to_str(s->rport, port_name), | |
2595 | NULL); | |
116ac927 RH |
2596 | |
2597 | if (show_proc_ctx || show_sock_ctx) { | |
b217df10 | 2598 | if (find_entry(s->ino, &ctx_buf, |
116ac927 RH |
2599 | (show_proc_ctx & show_sock_ctx) ? |
2600 | PROC_SOCK_CTX : PROC_CTX) > 0) { | |
b217df10 VK |
2601 | printf(" users:(%s)", ctx_buf); |
2602 | free(ctx_buf); | |
116ac927 RH |
2603 | } |
2604 | } else if (show_users) { | |
b217df10 VK |
2605 | if (find_entry(s->ino, &ctx_buf, USERS) > 0) { |
2606 | printf(" users:(%s)", ctx_buf); | |
2607 | free(ctx_buf); | |
116ac927 | 2608 | } |
aba5acdf SH |
2609 | } |
2610 | printf("\n"); | |
2611 | } | |
2612 | } | |
2613 | ||
8a4025f6 | 2614 | static int unix_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh, |
2615 | void *arg) | |
dfbaa90d | 2616 | { |
8a4025f6 | 2617 | struct filter *f = (struct filter *)arg; |
dfbaa90d PE |
2618 | struct unix_diag_msg *r = NLMSG_DATA(nlh); |
2619 | struct rtattr *tb[UNIX_DIAG_MAX+1]; | |
99bb68ff VK |
2620 | char name[128]; |
2621 | struct sockstat stat = { .name = "*", .peer_name = "*" }; | |
dfbaa90d PE |
2622 | |
2623 | parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr*)(r+1), | |
2624 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); | |
2625 | ||
bf4ceee6 VK |
2626 | stat.type = r->udiag_type; |
2627 | stat.state = r->udiag_state; | |
ec4d0d8a VK |
2628 | stat.ino = stat.lport = r->udiag_ino; |
2629 | stat.local.family = stat.remote.family = AF_UNIX; | |
0d2e01c5 | 2630 | |
bf4ceee6 VK |
2631 | if (unix_type_skip(&stat, f)) |
2632 | return 0; | |
dfbaa90d | 2633 | |
defd61ca HFS |
2634 | if (tb[UNIX_DIAG_RQLEN]) { |
2635 | struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]); | |
bf4ceee6 VK |
2636 | stat.rq = rql->udiag_rqueue; |
2637 | stat.wq = rql->udiag_wqueue; | |
defd61ca | 2638 | } |
dfbaa90d PE |
2639 | if (tb[UNIX_DIAG_NAME]) { |
2640 | int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]); | |
2641 | ||
2642 | memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len); | |
2643 | name[len] = '\0'; | |
2644 | if (name[0] == '\0') | |
2645 | name[0] = '@'; | |
99bb68ff VK |
2646 | stat.name = &name[0]; |
2647 | memcpy(stat.local.data, &stat.name, sizeof(stat.name)); | |
bf4ceee6 | 2648 | } |
dfbaa90d | 2649 | if (tb[UNIX_DIAG_PEER]) |
ec4d0d8a | 2650 | stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]); |
dfbaa90d | 2651 | |
29999b0f VK |
2652 | if (f->f && run_ssfilter(f->f, &stat) == 0) |
2653 | return 0; | |
2654 | ||
bf4ceee6 | 2655 | unix_stats_print(&stat, f); |
dfbaa90d | 2656 | |
51ff9f24 | 2657 | if (show_mem) { |
bf4ceee6 | 2658 | printf("\t"); |
51ff9f24 HFS |
2659 | print_skmeminfo(tb, UNIX_DIAG_MEMINFO); |
2660 | } | |
5b816047 PE |
2661 | if (show_details) { |
2662 | if (tb[UNIX_DIAG_SHUTDOWN]) { | |
2663 | unsigned char mask; | |
2664 | mask = *(__u8 *)RTA_DATA(tb[UNIX_DIAG_SHUTDOWN]); | |
2665 | printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>'); | |
2666 | } | |
2667 | } | |
bf4ceee6 VK |
2668 | if (show_mem || show_details) |
2669 | printf("\n"); | |
ec4d0d8a | 2670 | |
dfbaa90d PE |
2671 | return 0; |
2672 | } | |
2673 | ||
8a4025f6 | 2674 | static int handle_netlink_request(struct filter *f, struct nlmsghdr *req, |
2675 | size_t size, rtnl_filter_t show_one_sock) | |
dfbaa90d | 2676 | { |
8a4025f6 | 2677 | int ret = -1; |
2678 | struct rtnl_handle rth; | |
dfbaa90d | 2679 | |
8a4025f6 | 2680 | if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG)) |
dfbaa90d PE |
2681 | return -1; |
2682 | ||
8a4025f6 | 2683 | rth.dump = MAGIC_SEQ; |
dfbaa90d | 2684 | |
8a4025f6 | 2685 | if (rtnl_send(&rth, req, size) < 0) |
2686 | goto Exit; | |
dfbaa90d | 2687 | |
8a4025f6 | 2688 | if (rtnl_dump_filter(&rth, show_one_sock, f)) |
2689 | goto Exit; | |
dfbaa90d | 2690 | |
8a4025f6 | 2691 | ret = 0; |
2692 | Exit: | |
2693 | rtnl_close(&rth); | |
2694 | return ret; | |
dfbaa90d PE |
2695 | } |
2696 | ||
8a4025f6 | 2697 | static int unix_show_netlink(struct filter *f) |
d8402b96 | 2698 | { |
5fb421d4 | 2699 | DIAG_REQUEST(req, struct unix_diag_req r); |
d8402b96 AV |
2700 | |
2701 | req.r.sdiag_family = AF_UNIX; | |
2702 | req.r.udiag_states = f->states; | |
2703 | req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN; | |
2704 | if (show_mem) | |
2705 | req.r.udiag_show |= UDIAG_SHOW_MEMINFO; | |
2706 | ||
8a4025f6 | 2707 | return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock); |
d8402b96 AV |
2708 | } |
2709 | ||
d1f28cf1 | 2710 | static int unix_show(struct filter *f) |
aba5acdf SH |
2711 | { |
2712 | FILE *fp; | |
2713 | char buf[256]; | |
2714 | char name[128]; | |
2715 | int newformat = 0; | |
2716 | int cnt; | |
ec4d0d8a | 2717 | struct sockstat *list = NULL; |
aba5acdf | 2718 | |
9db7bf15 VK |
2719 | if (!filter_af_get(f, AF_UNIX)) |
2720 | return 0; | |
2721 | ||
ec4d0d8a | 2722 | if (!unix_use_proc() && unix_show_netlink(f) == 0) |
dfbaa90d PE |
2723 | return 0; |
2724 | ||
ab01dbbb | 2725 | if ((fp = net_unix_open()) == NULL) |
aba5acdf SH |
2726 | return -1; |
2727 | fgets(buf, sizeof(buf)-1, fp); | |
2728 | ||
ae665a52 | 2729 | if (memcmp(buf, "Peer", 4) == 0) |
aba5acdf SH |
2730 | newformat = 1; |
2731 | cnt = 0; | |
2732 | ||
2733 | while (fgets(buf, sizeof(buf)-1, fp)) { | |
ec4d0d8a | 2734 | struct sockstat *u, **insp; |
aba5acdf SH |
2735 | int flags; |
2736 | ||
2737 | if (!(u = malloc(sizeof(*u)))) | |
2738 | break; | |
99bb68ff VK |
2739 | u->name = NULL; |
2740 | u->peer_name = NULL; | |
aba5acdf SH |
2741 | |
2742 | if (sscanf(buf, "%x: %x %x %x %x %x %d %s", | |
ec4d0d8a | 2743 | &u->rport, &u->rq, &u->wq, &flags, &u->type, |
aba5acdf SH |
2744 | &u->state, &u->ino, name) < 8) |
2745 | name[0] = 0; | |
2746 | ||
ec4d0d8a VK |
2747 | u->lport = u->ino; |
2748 | u->local.family = u->remote.family = AF_UNIX; | |
2749 | ||
2750 | if (flags & (1 << 16)) { | |
aba5acdf SH |
2751 | u->state = SS_LISTEN; |
2752 | } else { | |
2753 | u->state = unix_state_map[u->state-1]; | |
ec4d0d8a | 2754 | if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport) |
aba5acdf SH |
2755 | u->state = SS_ESTABLISHED; |
2756 | } | |
2757 | ||
2758 | if (!newformat) { | |
ec4d0d8a | 2759 | u->rport = 0; |
aba5acdf SH |
2760 | u->rq = 0; |
2761 | u->wq = 0; | |
2762 | } | |
2763 | ||
2764 | insp = &list; | |
2765 | while (*insp) { | |
2766 | if (u->type < (*insp)->type || | |
2767 | (u->type == (*insp)->type && | |
2768 | u->ino < (*insp)->ino)) | |
2769 | break; | |
2770 | insp = &(*insp)->next; | |
2771 | } | |
2772 | u->next = *insp; | |
2773 | *insp = u; | |
2774 | ||
2775 | if (name[0]) { | |
99bb68ff VK |
2776 | if ((u->name = malloc(strlen(name)+1)) == NULL) |
2777 | break; | |
2778 | strcpy(u->name, name); | |
aba5acdf SH |
2779 | } |
2780 | if (++cnt > MAX_UNIX_REMEMBER) { | |
bf4ceee6 | 2781 | unix_stats_print(list, f); |
aba5acdf SH |
2782 | unix_list_free(list); |
2783 | list = NULL; | |
2784 | cnt = 0; | |
2785 | } | |
2786 | } | |
a3fd8e58 | 2787 | fclose(fp); |
aba5acdf | 2788 | if (list) { |
bf4ceee6 | 2789 | unix_stats_print(list, f); |
aba5acdf SH |
2790 | unix_list_free(list); |
2791 | list = NULL; | |
2792 | cnt = 0; | |
2793 | } | |
2794 | ||
2795 | return 0; | |
2796 | } | |
2797 | ||
89f634f9 | 2798 | static int packet_stats_print(struct sockstat *s, const struct filter *f) |
4a0053b6 VK |
2799 | { |
2800 | char *buf = NULL; | |
b217df10 VK |
2801 | const char *addr, *port; |
2802 | char ll_name[16]; | |
372c30d2 | 2803 | |
4a0053b6 | 2804 | if (f->f) { |
89f634f9 VK |
2805 | s->local.family = AF_PACKET; |
2806 | s->remote.family = AF_PACKET; | |
89f634f9 | 2807 | s->local.data[0] = s->prot; |
89f634f9 | 2808 | if (run_ssfilter(f->f, s) == 0) |
4a0053b6 VK |
2809 | return 1; |
2810 | } | |
372c30d2 | 2811 | |
2d791bc8 | 2812 | sock_state_print(s, s->type == SOCK_RAW ? "p_raw" : "p_dgr"); |
372c30d2 | 2813 | |
b217df10 VK |
2814 | if (s->prot == 3) |
2815 | addr = "*"; | |
2816 | else | |
2817 | addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name)); | |
2818 | ||
2819 | if (s->iface == 0) | |
2820 | port = "*"; | |
2821 | else | |
2822 | port = xll_index_to_name(s->iface); | |
372c30d2 | 2823 | |
b217df10 VK |
2824 | sock_addr_print(addr, ":", port, NULL); |
2825 | sock_addr_print("", "*", "", NULL); | |
116ac927 RH |
2826 | |
2827 | if (show_proc_ctx || show_sock_ctx) { | |
4a0053b6 VK |
2828 | if (find_entry(s->ino, &buf, |
2829 | (show_proc_ctx & show_sock_ctx) ? | |
2830 | PROC_SOCK_CTX : PROC_CTX) > 0) { | |
116ac927 RH |
2831 | printf(" users:(%s)", buf); |
2832 | free(buf); | |
2833 | } | |
2834 | } else if (show_users) { | |
4a0053b6 | 2835 | if (find_entry(s->ino, &buf, USERS) > 0) { |
116ac927 RH |
2836 | printf(" users:(%s)", buf); |
2837 | free(buf); | |
2838 | } | |
372c30d2 | 2839 | } |
116ac927 | 2840 | |
f1b39e1b VK |
2841 | if (show_details) |
2842 | sock_details_print(s); | |
2843 | ||
4a0053b6 VK |
2844 | return 0; |
2845 | } | |
2846 | ||
2631b856 VK |
2847 | static void packet_show_ring(struct packet_diag_ring *ring) |
2848 | { | |
2849 | printf("blk_size:%d", ring->pdr_block_size); | |
2850 | printf(",blk_nr:%d", ring->pdr_block_nr); | |
2851 | printf(",frm_size:%d", ring->pdr_frame_size); | |
2852 | printf(",frm_nr:%d", ring->pdr_frame_nr); | |
2853 | printf(",tmo:%d", ring->pdr_retire_tmo); | |
2854 | printf(",features:0x%x", ring->pdr_features); | |
2855 | } | |
2856 | ||
4a0053b6 VK |
2857 | static int packet_show_sock(const struct sockaddr_nl *addr, |
2858 | struct nlmsghdr *nlh, void *arg) | |
2859 | { | |
2860 | const struct filter *f = arg; | |
2861 | struct packet_diag_msg *r = NLMSG_DATA(nlh); | |
2631b856 VK |
2862 | struct packet_diag_info *pinfo = NULL; |
2863 | struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL; | |
4a0053b6 | 2864 | struct rtattr *tb[PACKET_DIAG_MAX+1]; |
89f634f9 | 2865 | struct sockstat stat = {}; |
2631b856 VK |
2866 | uint32_t fanout = 0; |
2867 | bool has_fanout = false; | |
4a0053b6 VK |
2868 | |
2869 | parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr*)(r+1), | |
2870 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); | |
2871 | ||
2872 | /* use /proc/net/packet if all info are not available */ | |
2873 | if (!tb[PACKET_DIAG_MEMINFO]) | |
2874 | return -1; | |
2875 | ||
2d791bc8 VK |
2876 | stat.type = r->pdiag_type; |
2877 | stat.prot = r->pdiag_num; | |
2878 | stat.ino = r->pdiag_ino; | |
2879 | stat.state = SS_CLOSE; | |
f1b39e1b | 2880 | stat.sk = cookie_sk_get(&r->pdiag_cookie[0]); |
4a0053b6 VK |
2881 | |
2882 | if (tb[PACKET_DIAG_MEMINFO]) { | |
2883 | __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]); | |
2884 | stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC]; | |
2885 | } | |
2886 | ||
2887 | if (tb[PACKET_DIAG_INFO]) { | |
2631b856 | 2888 | pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]); |
2d791bc8 | 2889 | stat.lport = stat.iface = pinfo->pdi_index; |
4a0053b6 VK |
2890 | } |
2891 | ||
f1b39e1b VK |
2892 | if (tb[PACKET_DIAG_UID]) |
2893 | stat.uid = *(__u32 *)RTA_DATA(tb[PACKET_DIAG_UID]); | |
2894 | ||
2631b856 VK |
2895 | if (tb[PACKET_DIAG_RX_RING]) |
2896 | ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]); | |
2897 | ||
2898 | if (tb[PACKET_DIAG_TX_RING]) | |
2899 | ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]); | |
2900 | ||
2901 | if (tb[PACKET_DIAG_FANOUT]) { | |
2902 | has_fanout = true; | |
2903 | fanout = *(uint32_t *)RTA_DATA(tb[PACKET_DIAG_FANOUT]); | |
2904 | } | |
2905 | ||
4a0053b6 VK |
2906 | if (packet_stats_print(&stat, f)) |
2907 | return 0; | |
2908 | ||
2631b856 VK |
2909 | if (show_details) { |
2910 | if (pinfo) { | |
2911 | printf("\n\tver:%d", pinfo->pdi_version); | |
2912 | printf(" cpy_thresh:%d", pinfo->pdi_copy_thresh); | |
2913 | printf(" flags( "); | |
2914 | if (pinfo->pdi_flags & PDI_RUNNING) | |
2915 | printf("running"); | |
2916 | if (pinfo->pdi_flags & PDI_AUXDATA) | |
2917 | printf(" auxdata"); | |
2918 | if (pinfo->pdi_flags & PDI_ORIGDEV) | |
2919 | printf(" origdev"); | |
2920 | if (pinfo->pdi_flags & PDI_VNETHDR) | |
2921 | printf(" vnethdr"); | |
2922 | if (pinfo->pdi_flags & PDI_LOSS) | |
2923 | printf(" loss"); | |
2924 | if (!pinfo->pdi_flags) | |
2925 | printf("0"); | |
2926 | printf(" )"); | |
2927 | } | |
2928 | if (ring_rx) { | |
2929 | printf("\n\tring_rx("); | |
2930 | packet_show_ring(ring_rx); | |
2931 | printf(")"); | |
2932 | } | |
2933 | if (ring_tx) { | |
2934 | printf("\n\tring_tx("); | |
2935 | packet_show_ring(ring_tx); | |
2936 | printf(")"); | |
2937 | } | |
2938 | if (has_fanout) { | |
2939 | uint16_t type = (fanout >> 16) & 0xffff; | |
2940 | ||
2941 | printf("\n\tfanout("); | |
2942 | printf("id:%d,", fanout & 0xffff); | |
2943 | printf("type:"); | |
2944 | ||
2945 | if (type == 0) | |
2946 | printf("hash"); | |
2947 | else if (type == 1) | |
2948 | printf("lb"); | |
2949 | else if (type == 2) | |
2950 | printf("cpu"); | |
2951 | else if (type == 3) | |
2952 | printf("roll"); | |
2953 | else if (type == 4) | |
2954 | printf("random"); | |
2955 | else if (type == 5) | |
2956 | printf("qm"); | |
2957 | else | |
2958 | printf("0x%x", type); | |
2959 | ||
2960 | printf(")"); | |
2961 | } | |
2962 | } | |
2963 | ||
372c30d2 ND |
2964 | if (show_bpf && tb[PACKET_DIAG_FILTER]) { |
2965 | struct sock_filter *fil = | |
2966 | RTA_DATA(tb[PACKET_DIAG_FILTER]); | |
2967 | int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) / | |
2968 | sizeof(struct sock_filter); | |
2969 | ||
2970 | printf("\n\tbpf filter (%d): ", num); | |
2971 | while (num) { | |
2972 | printf(" 0x%02x %u %u %u,", | |
2973 | fil->code, fil->jt, fil->jf, fil->k); | |
2974 | num--; | |
2975 | fil++; | |
2976 | } | |
2977 | } | |
2978 | printf("\n"); | |
2979 | return 0; | |
2980 | } | |
2981 | ||
8a4025f6 | 2982 | static int packet_show_netlink(struct filter *f) |
372c30d2 | 2983 | { |
5fb421d4 | 2984 | DIAG_REQUEST(req, struct packet_diag_req r); |
372c30d2 | 2985 | |
372c30d2 | 2986 | req.r.sdiag_family = AF_PACKET; |
2631b856 VK |
2987 | req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO | |
2988 | PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT; | |
372c30d2 | 2989 | |
8a4025f6 | 2990 | return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock); |
372c30d2 ND |
2991 | } |
2992 | ||
4a0053b6 VK |
2993 | static int packet_show_line(char *buf, const struct filter *f, int fam) |
2994 | { | |
2995 | unsigned long long sk; | |
89f634f9 | 2996 | struct sockstat stat = {}; |
4a0053b6 VK |
2997 | int type, prot, iface, state, rq, uid, ino; |
2998 | ||
2999 | sscanf(buf, "%llx %*d %d %x %d %d %u %u %u", | |
3000 | &sk, | |
3001 | &type, &prot, &iface, &state, | |
3002 | &rq, &uid, &ino); | |
3003 | ||
3004 | if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB))) | |
3005 | return 0; | |
3006 | if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB))) | |
3007 | return 0; | |
3008 | ||
3009 | stat.type = type; | |
3010 | stat.prot = prot; | |
2d791bc8 | 3011 | stat.lport = stat.iface = iface; |
4a0053b6 VK |
3012 | stat.state = state; |
3013 | stat.rq = rq; | |
3014 | stat.uid = uid; | |
3015 | stat.ino = ino; | |
2d791bc8 VK |
3016 | stat.state = SS_CLOSE; |
3017 | ||
4a0053b6 VK |
3018 | if (packet_stats_print(&stat, f)) |
3019 | return 0; | |
3020 | ||
4a0053b6 VK |
3021 | printf("\n"); |
3022 | return 0; | |
3023 | } | |
aba5acdf | 3024 | |
d1f28cf1 | 3025 | static int packet_show(struct filter *f) |
aba5acdf SH |
3026 | { |
3027 | FILE *fp; | |
3d0b7439 | 3028 | |
9db7bf15 | 3029 | if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE))) |
b9ea445d | 3030 | return 0; |
aba5acdf | 3031 | |
4a0053b6 VK |
3032 | if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") && |
3033 | packet_show_netlink(f) == 0) | |
372c30d2 ND |
3034 | return 0; |
3035 | ||
ab01dbbb | 3036 | if ((fp = net_packet_open()) == NULL) |
aba5acdf | 3037 | return -1; |
4a0053b6 VK |
3038 | if (generic_record_read(fp, packet_show_line, f, AF_PACKET)) |
3039 | return -1; | |
aba5acdf SH |
3040 | |
3041 | return 0; | |
3042 | } | |
3043 | ||
5f24ec0e | 3044 | static int netlink_show_one(struct filter *f, |
129709ae | 3045 | int prot, int pid, unsigned groups, |
f271fe01 | 3046 | int state, int dst_pid, unsigned dst_group, |
129709ae AV |
3047 | int rq, int wq, |
3048 | unsigned long long sk, unsigned long long cb) | |
3049 | { | |
2d791bc8 | 3050 | struct sockstat st; |
b217df10 VK |
3051 | SPRINT_BUF(prot_buf) = {}; |
3052 | const char *prot_name; | |
3053 | char procname[64] = {}; | |
eef43b50 | 3054 | |
2d791bc8 VK |
3055 | st.state = SS_CLOSE; |
3056 | st.rq = rq; | |
3057 | st.wq = wq; | |
3058 | ||
129709ae | 3059 | if (f->f) { |
055840f2 VK |
3060 | st.local.family = AF_NETLINK; |
3061 | st.remote.family = AF_NETLINK; | |
3062 | st.rport = -1; | |
3063 | st.lport = pid; | |
3064 | st.local.data[0] = prot; | |
055840f2 | 3065 | if (run_ssfilter(f->f, &st) == 0) |
5f24ec0e | 3066 | return 1; |
129709ae AV |
3067 | } |
3068 | ||
2d791bc8 | 3069 | sock_state_print(&st, "nl"); |
eef43b50 | 3070 | |
b217df10 VK |
3071 | if (resolve_services) |
3072 | prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf)); | |
3073 | else | |
3074 | prot_name = int_to_str(prot, prot_buf); | |
eef43b50 | 3075 | |
129709ae | 3076 | if (pid == -1) { |
b217df10 | 3077 | procname[0] = '*'; |
129709ae AV |
3078 | } else if (resolve_services) { |
3079 | int done = 0; | |
3080 | if (!pid) { | |
3081 | done = 1; | |
b217df10 | 3082 | strncpy(procname, "kernel", 6); |
129709ae | 3083 | } else if (pid > 0) { |
129709ae AV |
3084 | FILE *fp; |
3085 | sprintf(procname, "%s/%d/stat", | |
3086 | getenv("PROC_ROOT") ? : "/proc", pid); | |
3087 | if ((fp = fopen(procname, "r")) != NULL) { | |
3088 | if (fscanf(fp, "%*d (%[^)])", procname) == 1) { | |
3089 | sprintf(procname+strlen(procname), "/%d", pid); | |
129709ae AV |
3090 | done = 1; |
3091 | } | |
3092 | fclose(fp); | |
3093 | } | |
3094 | } | |
3095 | if (!done) | |
b217df10 | 3096 | int_to_str(pid, procname); |
129709ae | 3097 | } else { |
b217df10 | 3098 | int_to_str(pid, procname); |
129709ae | 3099 | } |
f271fe01 | 3100 | |
b217df10 VK |
3101 | sock_addr_print(prot_name, ":", procname, NULL); |
3102 | ||
f271fe01 | 3103 | if (state == NETLINK_CONNECTED) { |
b217df10 VK |
3104 | char dst_group_buf[30]; |
3105 | char dst_pid_buf[30]; | |
3106 | sock_addr_print(int_to_str(dst_group, dst_group_buf), ":", | |
3107 | int_to_str(dst_pid, dst_pid_buf), NULL); | |
f271fe01 | 3108 | } else { |
b217df10 | 3109 | sock_addr_print("", "*", "", NULL); |
f271fe01 | 3110 | } |
129709ae | 3111 | |
116ac927 RH |
3112 | char *pid_context = NULL; |
3113 | if (show_proc_ctx) { | |
3114 | /* The pid value will either be: | |
3115 | * 0 if destination kernel - show kernel initial context. | |
3116 | * A valid process pid - use getpidcon. | |
3117 | * A unique value allocated by the kernel or netlink user | |
3118 | * to the process - show context as "not available". | |
3119 | */ | |
3120 | if (!pid) | |
3121 | security_get_initial_context("kernel", &pid_context); | |
3122 | else if (pid > 0) | |
3123 | getpidcon(pid, &pid_context); | |
3124 | ||
3125 | if (pid_context != NULL) { | |
3126 | printf("proc_ctx=%-*s ", serv_width, pid_context); | |
3127 | free(pid_context); | |
3128 | } else { | |
3129 | printf("proc_ctx=%-*s ", serv_width, "unavailable"); | |
3130 | } | |
3131 | } | |
3132 | ||
129709ae AV |
3133 | if (show_details) { |
3134 | printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups); | |
3135 | } | |
3136 | printf("\n"); | |
3137 | ||
5f24ec0e | 3138 | return 0; |
129709ae AV |
3139 | } |
3140 | ||
8a4025f6 | 3141 | static int netlink_show_sock(const struct sockaddr_nl *addr, |
3142 | struct nlmsghdr *nlh, void *arg) | |
ecb928c8 | 3143 | { |
8a4025f6 | 3144 | struct filter *f = (struct filter *)arg; |
ecb928c8 AV |
3145 | struct netlink_diag_msg *r = NLMSG_DATA(nlh); |
3146 | struct rtattr *tb[NETLINK_DIAG_MAX+1]; | |
3147 | int rq = 0, wq = 0; | |
3148 | unsigned long groups = 0; | |
3149 | ||
3150 | parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr*)(r+1), | |
3151 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); | |
3152 | ||
3153 | if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS])) | |
3154 | groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]); | |
3155 | ||
3156 | if (tb[NETLINK_DIAG_MEMINFO]) { | |
3157 | const __u32 *skmeminfo; | |
3158 | skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]); | |
3159 | ||
3160 | rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC]; | |
3161 | wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC]; | |
3162 | } | |
3163 | ||
5f24ec0e | 3164 | if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups, |
ecb928c8 | 3165 | r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group, |
5f24ec0e VK |
3166 | rq, wq, 0, 0)) { |
3167 | return 0; | |
3168 | } | |
ecb928c8 AV |
3169 | |
3170 | if (show_mem) { | |
3171 | printf("\t"); | |
3172 | print_skmeminfo(tb, NETLINK_DIAG_MEMINFO); | |
3173 | printf("\n"); | |
3174 | } | |
3175 | ||
3176 | return 0; | |
3177 | } | |
3178 | ||
8a4025f6 | 3179 | static int netlink_show_netlink(struct filter *f) |
ecb928c8 | 3180 | { |
5fb421d4 | 3181 | DIAG_REQUEST(req, struct netlink_diag_req r); |
ecb928c8 AV |
3182 | |
3183 | req.r.sdiag_family = AF_NETLINK; | |
3184 | req.r.sdiag_protocol = NDIAG_PROTO_ALL; | |
3185 | req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO; | |
3186 | ||
8a4025f6 | 3187 | return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock); |
ecb928c8 AV |
3188 | } |
3189 | ||
d1f28cf1 | 3190 | static int netlink_show(struct filter *f) |
aba5acdf SH |
3191 | { |
3192 | FILE *fp; | |
3193 | char buf[256]; | |
3194 | int prot, pid; | |
3195 | unsigned groups; | |
3196 | int rq, wq, rc; | |
3197 | unsigned long long sk, cb; | |
3198 | ||
9db7bf15 | 3199 | if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE))) |
b9ea445d VK |
3200 | return 0; |
3201 | ||
129709ae | 3202 | if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") && |
8a4025f6 | 3203 | netlink_show_netlink(f) == 0) |
129709ae AV |
3204 | return 0; |
3205 | ||
ab01dbbb | 3206 | if ((fp = net_netlink_open()) == NULL) |
aba5acdf SH |
3207 | return -1; |
3208 | fgets(buf, sizeof(buf)-1, fp); | |
3209 | ||
3210 | while (fgets(buf, sizeof(buf)-1, fp)) { | |
3211 | sscanf(buf, "%llx %d %d %x %d %d %llx %d", | |
3212 | &sk, | |
3213 | &prot, &pid, &groups, &rq, &wq, &cb, &rc); | |
3214 | ||
f271fe01 | 3215 | netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb); |
aba5acdf SH |
3216 | } |
3217 | ||
3218 | return 0; | |
3219 | } | |
3220 | ||
6885e3bf CG |
3221 | struct sock_diag_msg { |
3222 | __u8 sdiag_family; | |
3223 | }; | |
3224 | ||
3225 | static int generic_show_sock(const struct sockaddr_nl *addr, | |
3226 | struct nlmsghdr *nlh, void *arg) | |
3227 | { | |
3228 | struct sock_diag_msg *r = NLMSG_DATA(nlh); | |
3229 | struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX }; | |
3230 | ||
3231 | switch (r->sdiag_family) { | |
3232 | case AF_INET: | |
3233 | case AF_INET6: | |
3234 | return show_one_inet_sock(addr, nlh, &inet_arg); | |
3235 | case AF_UNIX: | |
3236 | return unix_show_sock(addr, nlh, arg); | |
3237 | case AF_PACKET: | |
3238 | return packet_show_sock(addr, nlh, arg); | |
3239 | case AF_NETLINK: | |
3240 | return netlink_show_sock(addr, nlh, arg); | |
3241 | default: | |
3242 | return -1; | |
3243 | } | |
3244 | } | |
3245 | ||
3246 | static int handle_follow_request(struct filter *f) | |
3247 | { | |
3248 | int ret = -1; | |
3249 | int groups = 0; | |
3250 | struct rtnl_handle rth; | |
3251 | ||
3252 | if (f->families & (1 << AF_INET) && f->dbs & (1 << TCP_DB)) | |
3253 | groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1); | |
3254 | if (f->families & (1 << AF_INET) && f->dbs & (1 << UDP_DB)) | |
3255 | groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1); | |
3256 | if (f->families & (1 << AF_INET6) && f->dbs & (1 << TCP_DB)) | |
3257 | groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1); | |
3258 | if (f->families & (1 << AF_INET6) && f->dbs & (1 << UDP_DB)) | |
3259 | groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1); | |
3260 | ||
3261 | if (groups == 0) | |
3262 | return -1; | |
3263 | ||
3264 | if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG)) | |
3265 | return -1; | |
3266 | ||
3267 | rth.dump = 0; | |
3268 | rth.local.nl_pid = 0; | |
3269 | ||
3270 | if (rtnl_dump_filter(&rth, generic_show_sock, f)) | |
3271 | goto Exit; | |
3272 | ||
3273 | ret = 0; | |
3274 | Exit: | |
3275 | rtnl_close(&rth); | |
3276 | return ret; | |
3277 | } | |
3278 | ||
aba5acdf SH |
3279 | struct snmpstat |
3280 | { | |
3281 | int tcp_estab; | |
3282 | }; | |
3283 | ||
d1f28cf1 | 3284 | static int get_snmp_int(char *proto, char *key, int *result) |
aba5acdf SH |
3285 | { |
3286 | char buf[1024]; | |
3287 | FILE *fp; | |
3288 | int protolen = strlen(proto); | |
3289 | int keylen = strlen(key); | |
3290 | ||
3291 | *result = 0; | |
3292 | ||
ab01dbbb | 3293 | if ((fp = net_snmp_open()) == NULL) |
aba5acdf SH |
3294 | return -1; |
3295 | ||
3296 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
3297 | char *p = buf; | |
3298 | int pos = 0; | |
3299 | if (memcmp(buf, proto, protolen)) | |
3300 | continue; | |
3301 | while ((p = strchr(p, ' ')) != NULL) { | |
3302 | pos++; | |
3303 | p++; | |
3304 | if (memcmp(p, key, keylen) == 0 && | |
3305 | (p[keylen] == ' ' || p[keylen] == '\n')) | |
3306 | break; | |
3307 | } | |
3308 | if (fgets(buf, sizeof(buf), fp) == NULL) | |
3309 | break; | |
3310 | if (memcmp(buf, proto, protolen)) | |
3311 | break; | |
3312 | p = buf; | |
3313 | while ((p = strchr(p, ' ')) != NULL) { | |
3314 | p++; | |
3315 | if (--pos == 0) { | |
3316 | sscanf(p, "%d", result); | |
3317 | fclose(fp); | |
3318 | return 0; | |
3319 | } | |
3320 | } | |
3321 | } | |
3322 | ||
3323 | fclose(fp); | |
3324 | errno = ESRCH; | |
3325 | return -1; | |
3326 | } | |
3327 | ||
3328 | ||
3329 | /* Get stats from sockstat */ | |
3330 | ||
055840f2 | 3331 | struct ssummary |
aba5acdf SH |
3332 | { |
3333 | int socks; | |
3334 | int tcp_mem; | |
3335 | int tcp_total; | |
3336 | int tcp_orphans; | |
3337 | int tcp_tws; | |
3338 | int tcp4_hashed; | |
3339 | int udp4; | |
3340 | int raw4; | |
3341 | int frag4; | |
3342 | int frag4_mem; | |
3343 | int tcp6_hashed; | |
3344 | int udp6; | |
3345 | int raw6; | |
3346 | int frag6; | |
3347 | int frag6_mem; | |
3348 | }; | |
3349 | ||
055840f2 | 3350 | static void get_sockstat_line(char *line, struct ssummary *s) |
aba5acdf SH |
3351 | { |
3352 | char id[256], rem[256]; | |
3353 | ||
3354 | if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2) | |
3355 | return; | |
3356 | ||
3357 | if (strcmp(id, "sockets:") == 0) | |
3358 | sscanf(rem, "%*s%d", &s->socks); | |
3359 | else if (strcmp(id, "UDP:") == 0) | |
3360 | sscanf(rem, "%*s%d", &s->udp4); | |
3361 | else if (strcmp(id, "UDP6:") == 0) | |
3362 | sscanf(rem, "%*s%d", &s->udp6); | |
3363 | else if (strcmp(id, "RAW:") == 0) | |
3364 | sscanf(rem, "%*s%d", &s->raw4); | |
3365 | else if (strcmp(id, "RAW6:") == 0) | |
3366 | sscanf(rem, "%*s%d", &s->raw6); | |
3367 | else if (strcmp(id, "TCP6:") == 0) | |
3368 | sscanf(rem, "%*s%d", &s->tcp6_hashed); | |
3369 | else if (strcmp(id, "FRAG:") == 0) | |
3370 | sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem); | |
3371 | else if (strcmp(id, "FRAG6:") == 0) | |
3372 | sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem); | |
3373 | else if (strcmp(id, "TCP:") == 0) | |
3374 | sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d", | |
3375 | &s->tcp4_hashed, | |
3376 | &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem); | |
3377 | } | |
3378 | ||
055840f2 | 3379 | static int get_sockstat(struct ssummary *s) |
aba5acdf SH |
3380 | { |
3381 | char buf[256]; | |
3382 | FILE *fp; | |
3383 | ||
3384 | memset(s, 0, sizeof(*s)); | |
3385 | ||
ab01dbbb | 3386 | if ((fp = net_sockstat_open()) == NULL) |
aba5acdf SH |
3387 | return -1; |
3388 | while(fgets(buf, sizeof(buf), fp) != NULL) | |
3389 | get_sockstat_line(buf, s); | |
3390 | fclose(fp); | |
3391 | ||
ab01dbbb | 3392 | if ((fp = net_sockstat6_open()) == NULL) |
aba5acdf SH |
3393 | return 0; |
3394 | while(fgets(buf, sizeof(buf), fp) != NULL) | |
3395 | get_sockstat_line(buf, s); | |
3396 | fclose(fp); | |
3397 | ||
3398 | return 0; | |
3399 | } | |
3400 | ||
d1f28cf1 | 3401 | static int print_summary(void) |
aba5acdf | 3402 | { |
055840f2 | 3403 | struct ssummary s; |
aba5acdf SH |
3404 | struct snmpstat sn; |
3405 | ||
3406 | if (get_sockstat(&s) < 0) | |
3407 | perror("ss: get_sockstat"); | |
3408 | if (get_snmp_int("Tcp:", "CurrEstab", &sn.tcp_estab) < 0) | |
3409 | perror("ss: get_snmpstat"); | |
3410 | ||
a221d621 BL |
3411 | get_slabstat(&slabstat); |
3412 | ||
aba5acdf SH |
3413 | printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks); |
3414 | ||
3415 | printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n", | |
3416 | s.tcp_total + slabstat.tcp_syns + s.tcp_tws, | |
3417 | sn.tcp_estab, | |
3418 | s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws), | |
3419 | s.tcp_orphans, | |
3420 | slabstat.tcp_syns, | |
3421 | s.tcp_tws, slabstat.tcp_tws, | |
3422 | slabstat.tcp_ports | |
3423 | ); | |
3424 | ||
3425 | printf("\n"); | |
3426 | printf("Transport Total IP IPv6\n"); | |
3427 | printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-"); | |
3428 | printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6); | |
3429 | printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6); | |
3430 | printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed); | |
ae665a52 | 3431 | printf("INET %-9d %-9d %-9d\n", |
aba5acdf SH |
3432 | s.raw4+s.udp4+s.tcp4_hashed+ |
3433 | s.raw6+s.udp6+s.tcp6_hashed, | |
3434 | s.raw4+s.udp4+s.tcp4_hashed, | |
3435 | s.raw6+s.udp6+s.tcp6_hashed); | |
3436 | printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6); | |
3437 | ||
3438 | printf("\n"); | |
3439 | ||
3440 | return 0; | |
3441 | } | |
3442 | ||
7a96e199 | 3443 | static void _usage(FILE *dest) |
aba5acdf | 3444 | { |
7a96e199 | 3445 | fprintf(dest, |
aba5acdf SH |
3446 | "Usage: ss [ OPTIONS ]\n" |
3447 | " ss [ OPTIONS ] [ FILTER ]\n" | |
ff041f16 VK |
3448 | " -h, --help this message\n" |
3449 | " -V, --version output version information\n" | |
3450 | " -n, --numeric don't resolve service names\n" | |
ab61159a | 3451 | " -r, --resolve resolve host names\n" |
ff041f16 VK |
3452 | " -a, --all display all sockets\n" |
3453 | " -l, --listening display listening sockets\n" | |
ab61159a SH |
3454 | " -o, --options show timer information\n" |
3455 | " -e, --extended show detailed socket information\n" | |
3456 | " -m, --memory show socket memory usage\n" | |
ff041f16 VK |
3457 | " -p, --processes show process using socket\n" |
3458 | " -i, --info show internal TCP information\n" | |
3459 | " -s, --summary show socket usage summary\n" | |
b0f01cf6 | 3460 | " -b, --bpf show bpf filter socket information\n" |
6885e3bf | 3461 | " -E, --events continually display sockets as they are destroyed\n" |
ff041f16 VK |
3462 | " -Z, --context display process SELinux security contexts\n" |
3463 | " -z, --contexts display process and socket SELinux security contexts\n" | |
95ce04bc | 3464 | " -N, --net switch to the specified network namespace name\n" |
ab61159a SH |
3465 | "\n" |
3466 | " -4, --ipv4 display only IP version 4 sockets\n" | |
3467 | " -6, --ipv6 display only IP version 6 sockets\n" | |
ff041f16 VK |
3468 | " -0, --packet display PACKET sockets\n" |
3469 | " -t, --tcp display only TCP sockets\n" | |
3470 | " -u, --udp display only UDP sockets\n" | |
3471 | " -d, --dccp display only DCCP sockets\n" | |
3472 | " -w, --raw display only RAW sockets\n" | |
3473 | " -x, --unix display only Unix domain sockets\n" | |
ab61159a SH |
3474 | " -f, --family=FAMILY display sockets of type FAMILY\n" |
3475 | "\n" | |
583de149 | 3476 | " -A, --query=QUERY, --socket=QUERY\n" |
56dee73e | 3477 | " QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n" |
ab61159a | 3478 | "\n" |
583de149 | 3479 | " -D, --diag=FILE Dump raw information about TCP sockets to FILE\n" |
ab61159a | 3480 | " -F, --filter=FILE read filter information from FILE\n" |
ff041f16 VK |
3481 | " FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n" |
3482 | " STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n" | |
3483 | " TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listen|closing}\n" | |
3484 | " connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n" | |
3485 | " synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n" | |
3486 | " bucket := {syn-recv|time-wait}\n" | |
3487 | " big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listen|closing}\n" | |
ab61159a | 3488 | ); |
7a96e199 AH |
3489 | } |
3490 | ||
3491 | static void help(void) __attribute__((noreturn)); | |
3492 | static void help(void) | |
3493 | { | |
3494 | _usage(stdout); | |
3495 | exit(0); | |
3496 | } | |
3497 | ||
3498 | static void usage(void) __attribute__((noreturn)); | |
3499 | static void usage(void) | |
3500 | { | |
3501 | _usage(stderr); | |
aba5acdf SH |
3502 | exit(-1); |
3503 | } | |
3504 | ||
3505 | ||
d1f28cf1 | 3506 | static int scan_state(const char *state) |
aba5acdf SH |
3507 | { |
3508 | int i; | |
3509 | if (strcasecmp(state, "close") == 0 || | |
3510 | strcasecmp(state, "closed") == 0) | |
3511 | return (1<<SS_CLOSE); | |
3512 | if (strcasecmp(state, "syn-rcv") == 0) | |
3513 | return (1<<SS_SYN_RECV); | |
1a5bad5a | 3514 | if (strcasecmp(state, "established") == 0) |
aba5acdf SH |
3515 | return (1<<SS_ESTABLISHED); |
3516 | if (strcasecmp(state, "all") == 0) | |
3517 | return SS_ALL; | |
3518 | if (strcasecmp(state, "connected") == 0) | |
3519 | return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)); | |
1a5bad5a | 3520 | if (strcasecmp(state, "synchronized") == 0) |
aba5acdf SH |
3521 | return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT)); |
3522 | if (strcasecmp(state, "bucket") == 0) | |
3523 | return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT); | |
3524 | if (strcasecmp(state, "big") == 0) | |
3525 | return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT)); | |
3526 | for (i=0; i<SS_MAX; i++) { | |
1a5bad5a | 3527 | if (strcasecmp(state, sstate_namel[i]) == 0) |
aba5acdf SH |
3528 | return (1<<i); |
3529 | } | |
9db7bf15 VK |
3530 | |
3531 | fprintf(stderr, "ss: wrong state name: %s\n", state); | |
3532 | exit(-1); | |
aba5acdf SH |
3533 | } |
3534 | ||
ab61159a SH |
3535 | static const struct option long_opts[] = { |
3536 | { "numeric", 0, 0, 'n' }, | |
3537 | { "resolve", 0, 0, 'r' }, | |
3538 | { "options", 0, 0, 'o' }, | |
3539 | { "extended", 0, 0, 'e' }, | |
3540 | { "memory", 0, 0, 'm' }, | |
3541 | { "info", 0, 0, 'i' }, | |
3542 | { "processes", 0, 0, 'p' }, | |
372c30d2 | 3543 | { "bpf", 0, 0, 'b' }, |
6885e3bf | 3544 | { "events", 0, 0, 'E' }, |
351efcde | 3545 | { "dccp", 0, 0, 'd' }, |
ab61159a SH |
3546 | { "tcp", 0, 0, 't' }, |
3547 | { "udp", 0, 0, 'u' }, | |
3548 | { "raw", 0, 0, 'w' }, | |
3549 | { "unix", 0, 0, 'x' }, | |
3550 | { "all", 0, 0, 'a' }, | |
3551 | { "listening", 0, 0, 'l' }, | |
3552 | { "ipv4", 0, 0, '4' }, | |
3553 | { "ipv6", 0, 0, '6' }, | |
3554 | { "packet", 0, 0, '0' }, | |
3555 | { "family", 1, 0, 'f' }, | |
3556 | { "socket", 1, 0, 'A' }, | |
583de149 | 3557 | { "query", 1, 0, 'A' }, |
c3f346b0 | 3558 | { "summary", 0, 0, 's' }, |
583de149 | 3559 | { "diag", 1, 0, 'D' }, |
ab61159a SH |
3560 | { "filter", 1, 0, 'F' }, |
3561 | { "version", 0, 0, 'V' }, | |
3562 | { "help", 0, 0, 'h' }, | |
116ac927 RH |
3563 | { "context", 0, 0, 'Z' }, |
3564 | { "contexts", 0, 0, 'z' }, | |
95ce04bc | 3565 | { "net", 1, 0, 'N' }, |
ab61159a | 3566 | { 0 } |
ae665a52 | 3567 | |
ab61159a SH |
3568 | }; |
3569 | ||
aba5acdf SH |
3570 | int main(int argc, char *argv[]) |
3571 | { | |
aba5acdf SH |
3572 | int saw_states = 0; |
3573 | int saw_query = 0; | |
3574 | int do_summary = 0; | |
7d105b56 | 3575 | const char *dump_tcpdiag = NULL; |
aba5acdf SH |
3576 | FILE *filter_fp = NULL; |
3577 | int ch; | |
9db7bf15 | 3578 | int state_filter = 0; |
aba5acdf | 3579 | |
6885e3bf | 3580 | while ((ch = getopt_long(argc, argv, "dhaletuwxnro460spbEf:miA:D:F:vVzZN:", |
ab61159a | 3581 | long_opts, NULL)) != EOF) { |
aba5acdf SH |
3582 | switch(ch) { |
3583 | case 'n': | |
3584 | resolve_services = 0; | |
3585 | break; | |
3586 | case 'r': | |
3587 | resolve_hosts = 1; | |
3588 | break; | |
3589 | case 'o': | |
3590 | show_options = 1; | |
3591 | break; | |
3592 | case 'e': | |
3593 | show_options = 1; | |
3594 | show_details++; | |
3595 | break; | |
3596 | case 'm': | |
3597 | show_mem = 1; | |
3598 | break; | |
3599 | case 'i': | |
3600 | show_tcpinfo = 1; | |
3601 | break; | |
3602 | case 'p': | |
3603 | show_users++; | |
fbc0f876 | 3604 | user_ent_hash_build(); |
aba5acdf | 3605 | break; |
372c30d2 ND |
3606 | case 'b': |
3607 | show_options = 1; | |
3608 | show_bpf++; | |
3609 | break; | |
6885e3bf CG |
3610 | case 'E': |
3611 | follow_events = 1; | |
3612 | break; | |
351efcde | 3613 | case 'd': |
57ff5a10 | 3614 | filter_db_set(¤t_filter, DCCP_DB); |
351efcde | 3615 | break; |
aba5acdf | 3616 | case 't': |
57ff5a10 | 3617 | filter_db_set(¤t_filter, TCP_DB); |
aba5acdf SH |
3618 | break; |
3619 | case 'u': | |
57ff5a10 | 3620 | filter_db_set(¤t_filter, UDP_DB); |
aba5acdf SH |
3621 | break; |
3622 | case 'w': | |
57ff5a10 | 3623 | filter_db_set(¤t_filter, RAW_DB); |
aba5acdf SH |
3624 | break; |
3625 | case 'x': | |
9db7bf15 | 3626 | filter_af_set(¤t_filter, AF_UNIX); |
aba5acdf SH |
3627 | break; |
3628 | case 'a': | |
9db7bf15 | 3629 | state_filter = SS_ALL; |
aba5acdf SH |
3630 | break; |
3631 | case 'l': | |
9db7bf15 | 3632 | state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE); |
aba5acdf SH |
3633 | break; |
3634 | case '4': | |
9db7bf15 | 3635 | filter_af_set(¤t_filter, AF_INET); |
aba5acdf SH |
3636 | break; |
3637 | case '6': | |
9db7bf15 | 3638 | filter_af_set(¤t_filter, AF_INET6); |
aba5acdf SH |
3639 | break; |
3640 | case '0': | |
9db7bf15 | 3641 | filter_af_set(¤t_filter, AF_PACKET); |
aba5acdf SH |
3642 | break; |
3643 | case 'f': | |
3644 | if (strcmp(optarg, "inet") == 0) | |
9db7bf15 | 3645 | filter_af_set(¤t_filter, AF_INET); |
aba5acdf | 3646 | else if (strcmp(optarg, "inet6") == 0) |
9db7bf15 | 3647 | filter_af_set(¤t_filter, AF_INET6); |
aba5acdf | 3648 | else if (strcmp(optarg, "link") == 0) |
9db7bf15 | 3649 | filter_af_set(¤t_filter, AF_PACKET); |
aba5acdf | 3650 | else if (strcmp(optarg, "unix") == 0) |
9db7bf15 | 3651 | filter_af_set(¤t_filter, AF_UNIX); |
aba5acdf | 3652 | else if (strcmp(optarg, "netlink") == 0) |
9db7bf15 | 3653 | filter_af_set(¤t_filter, AF_NETLINK); |
aba5acdf | 3654 | else if (strcmp(optarg, "help") == 0) |
7a96e199 | 3655 | help(); |
aba5acdf | 3656 | else { |
9db7bf15 VK |
3657 | fprintf(stderr, "ss: \"%s\" is invalid family\n", |
3658 | optarg); | |
aba5acdf SH |
3659 | usage(); |
3660 | } | |
3661 | break; | |
3662 | case 'A': | |
3663 | { | |
3664 | char *p, *p1; | |
3665 | if (!saw_query) { | |
3666 | current_filter.dbs = 0; | |
7f9dddbe PS |
3667 | state_filter = state_filter ? |
3668 | state_filter : SS_CONN; | |
aba5acdf SH |
3669 | saw_query = 1; |
3670 | do_default = 0; | |
3671 | } | |
3672 | p = p1 = optarg; | |
3673 | do { | |
3674 | if ((p1 = strchr(p, ',')) != NULL) | |
ae665a52 | 3675 | *p1 = 0; |
aba5acdf | 3676 | if (strcmp(p, "all") == 0) { |
57ff5a10 | 3677 | filter_default_dbs(¤t_filter); |
aba5acdf | 3678 | } else if (strcmp(p, "inet") == 0) { |
57ff5a10 VK |
3679 | filter_db_set(¤t_filter, UDP_DB); |
3680 | filter_db_set(¤t_filter, DCCP_DB); | |
3681 | filter_db_set(¤t_filter, TCP_DB); | |
3682 | filter_db_set(¤t_filter, RAW_DB); | |
aba5acdf | 3683 | } else if (strcmp(p, "udp") == 0) { |
57ff5a10 | 3684 | filter_db_set(¤t_filter, UDP_DB); |
351efcde | 3685 | } else if (strcmp(p, "dccp") == 0) { |
57ff5a10 | 3686 | filter_db_set(¤t_filter, DCCP_DB); |
aba5acdf | 3687 | } else if (strcmp(p, "tcp") == 0) { |
57ff5a10 | 3688 | filter_db_set(¤t_filter, TCP_DB); |
aba5acdf | 3689 | } else if (strcmp(p, "raw") == 0) { |
57ff5a10 | 3690 | filter_db_set(¤t_filter, RAW_DB); |
aba5acdf | 3691 | } else if (strcmp(p, "unix") == 0) { |
57ff5a10 VK |
3692 | filter_db_set(¤t_filter, UNIX_ST_DB); |
3693 | filter_db_set(¤t_filter, UNIX_DG_DB); | |
3694 | filter_db_set(¤t_filter, UNIX_SQ_DB); | |
1a5bad5a | 3695 | } else if (strcasecmp(p, "unix_stream") == 0 || |
aba5acdf | 3696 | strcmp(p, "u_str") == 0) { |
57ff5a10 | 3697 | filter_db_set(¤t_filter, UNIX_ST_DB); |
1a5bad5a | 3698 | } else if (strcasecmp(p, "unix_dgram") == 0 || |
aba5acdf | 3699 | strcmp(p, "u_dgr") == 0) { |
57ff5a10 | 3700 | filter_db_set(¤t_filter, UNIX_DG_DB); |
30b669d7 MY |
3701 | } else if (strcasecmp(p, "unix_seqpacket") == 0 || |
3702 | strcmp(p, "u_seq") == 0) { | |
57ff5a10 | 3703 | filter_db_set(¤t_filter, UNIX_SQ_DB); |
aba5acdf | 3704 | } else if (strcmp(p, "packet") == 0) { |
57ff5a10 VK |
3705 | filter_db_set(¤t_filter, PACKET_R_DB); |
3706 | filter_db_set(¤t_filter, PACKET_DG_DB); | |
aba5acdf SH |
3707 | } else if (strcmp(p, "packet_raw") == 0 || |
3708 | strcmp(p, "p_raw") == 0) { | |
57ff5a10 | 3709 | filter_db_set(¤t_filter, PACKET_R_DB); |
aba5acdf SH |
3710 | } else if (strcmp(p, "packet_dgram") == 0 || |
3711 | strcmp(p, "p_dgr") == 0) { | |
57ff5a10 | 3712 | filter_db_set(¤t_filter, PACKET_DG_DB); |
aba5acdf | 3713 | } else if (strcmp(p, "netlink") == 0) { |
57ff5a10 | 3714 | filter_db_set(¤t_filter, NETLINK_DB); |
aba5acdf SH |
3715 | } else { |
3716 | fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p); | |
3717 | usage(); | |
3718 | } | |
3719 | p = p1 + 1; | |
3720 | } while (p1); | |
3721 | break; | |
3722 | } | |
3723 | case 's': | |
3724 | do_summary = 1; | |
3725 | break; | |
3726 | case 'D': | |
3727 | dump_tcpdiag = optarg; | |
3728 | break; | |
3729 | case 'F': | |
3730 | if (filter_fp) { | |
3731 | fprintf(stderr, "More than one filter file\n"); | |
3732 | exit(-1); | |
3733 | } | |
3734 | if (optarg[0] == '-') | |
3735 | filter_fp = stdin; | |
3736 | else | |
3737 | filter_fp = fopen(optarg, "r"); | |
3738 | if (!filter_fp) { | |
3739 | perror("fopen filter file"); | |
3740 | exit(-1); | |
3741 | } | |
3742 | break; | |
3743 | case 'v': | |
3744 | case 'V': | |
3745 | printf("ss utility, iproute2-ss%s\n", SNAPSHOT); | |
3746 | exit(0); | |
116ac927 RH |
3747 | case 'z': |
3748 | show_sock_ctx++; | |
3749 | case 'Z': | |
3750 | if (is_selinux_enabled() <= 0) { | |
3751 | fprintf(stderr, "ss: SELinux is not enabled.\n"); | |
3752 | exit(1); | |
3753 | } | |
3754 | show_proc_ctx++; | |
3755 | user_ent_hash_build(); | |
3756 | break; | |
95ce04bc VK |
3757 | case 'N': |
3758 | if (netns_switch(optarg)) | |
3759 | exit(1); | |
3760 | break; | |
aba5acdf SH |
3761 | case 'h': |
3762 | case '?': | |
7a96e199 | 3763 | help(); |
aba5acdf SH |
3764 | default: |
3765 | usage(); | |
3766 | } | |
3767 | } | |
3768 | ||
3769 | argc -= optind; | |
3770 | argv += optind; | |
3771 | ||
aba5acdf SH |
3772 | if (do_summary) { |
3773 | print_summary(); | |
3774 | if (do_default && argc == 0) | |
3775 | exit(0); | |
3776 | } | |
3777 | ||
aba5acdf SH |
3778 | /* Now parse filter... */ |
3779 | if (argc == 0 && filter_fp) { | |
3780 | if (ssfilter_parse(¤t_filter.f, 0, NULL, filter_fp)) | |
3781 | usage(); | |
3782 | } | |
3783 | ||
3784 | while (argc > 0) { | |
3785 | if (strcmp(*argv, "state") == 0) { | |
3786 | NEXT_ARG(); | |
3787 | if (!saw_states) | |
9db7bf15 VK |
3788 | state_filter = 0; |
3789 | state_filter |= scan_state(*argv); | |
aba5acdf SH |
3790 | saw_states = 1; |
3791 | } else if (strcmp(*argv, "exclude") == 0 || | |
3792 | strcmp(*argv, "excl") == 0) { | |
3793 | NEXT_ARG(); | |
3794 | if (!saw_states) | |
9db7bf15 VK |
3795 | state_filter = SS_ALL; |
3796 | state_filter &= ~scan_state(*argv); | |
aba5acdf SH |
3797 | saw_states = 1; |
3798 | } else { | |
aba5acdf SH |
3799 | break; |
3800 | } | |
3801 | argc--; argv++; | |
3802 | } | |
3803 | ||
9db7bf15 VK |
3804 | if (do_default) { |
3805 | state_filter = state_filter ? state_filter : SS_CONN; | |
3806 | filter_default_dbs(¤t_filter); | |
9db7bf15 VK |
3807 | } |
3808 | ||
57ff5a10 VK |
3809 | filter_states_set(¤t_filter, state_filter); |
3810 | filter_merge_defaults(¤t_filter); | |
3811 | ||
9db7bf15 VK |
3812 | if (resolve_services && resolve_hosts && |
3813 | (current_filter.dbs&(UNIX_DBM|(1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)))) | |
3814 | init_service_resolver(); | |
3815 | ||
3816 | ||
3817 | if (current_filter.dbs == 0) { | |
3818 | fprintf(stderr, "ss: no socket tables to show with such filter.\n"); | |
3819 | exit(0); | |
3820 | } | |
3821 | if (current_filter.families == 0) { | |
3822 | fprintf(stderr, "ss: no families to show with such filter.\n"); | |
3823 | exit(0); | |
3824 | } | |
aba5acdf SH |
3825 | if (current_filter.states == 0) { |
3826 | fprintf(stderr, "ss: no socket states to show with such filter.\n"); | |
3827 | exit(0); | |
3828 | } | |
3829 | ||
3830 | if (dump_tcpdiag) { | |
3831 | FILE *dump_fp = stdout; | |
3832 | if (!(current_filter.dbs & (1<<TCP_DB))) { | |
3833 | fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n"); | |
3834 | exit(0); | |
3835 | } | |
3836 | if (dump_tcpdiag[0] != '-') { | |
3837 | dump_fp = fopen(dump_tcpdiag, "w"); | |
3838 | if (!dump_tcpdiag) { | |
3839 | perror("fopen dump file"); | |
3840 | exit(-1); | |
3841 | } | |
3842 | } | |
3fe5b534 | 3843 | inet_show_netlink(¤t_filter, dump_fp, IPPROTO_TCP); |
aba5acdf SH |
3844 | fflush(dump_fp); |
3845 | exit(0); | |
3846 | } | |
3847 | ||
1527a17e VK |
3848 | if (ssfilter_parse(¤t_filter.f, argc, argv, filter_fp)) |
3849 | usage(); | |
3850 | ||
aba5acdf SH |
3851 | netid_width = 0; |
3852 | if (current_filter.dbs&(current_filter.dbs-1)) | |
3853 | netid_width = 5; | |
3854 | ||
3855 | state_width = 0; | |
3856 | if (current_filter.states&(current_filter.states-1)) | |
3857 | state_width = 10; | |
3858 | ||
3859 | screen_width = 80; | |
3860 | if (isatty(STDOUT_FILENO)) { | |
3861 | struct winsize w; | |
3862 | ||
3863 | if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) { | |
3864 | if (w.ws_col > 0) | |
3865 | screen_width = w.ws_col; | |
3866 | } | |
3867 | } | |
3868 | ||
3869 | addrp_width = screen_width; | |
3870 | addrp_width -= netid_width+1; | |
3871 | addrp_width -= state_width+1; | |
3872 | addrp_width -= 14; | |
3873 | ||
3874 | if (addrp_width&1) { | |
3875 | if (netid_width) | |
3876 | netid_width++; | |
3877 | else if (state_width) | |
3878 | state_width++; | |
3879 | } | |
3880 | ||
3881 | addrp_width /= 2; | |
3882 | addrp_width--; | |
3883 | ||
3884 | serv_width = resolve_services ? 7 : 5; | |
3885 | ||
3886 | if (addrp_width < 15+serv_width+1) | |
3887 | addrp_width = 15+serv_width+1; | |
3888 | ||
ae665a52 | 3889 | addr_width = addrp_width - serv_width - 1; |
aba5acdf SH |
3890 | |
3891 | if (netid_width) | |
3892 | printf("%-*s ", netid_width, "Netid"); | |
3893 | if (state_width) | |
3894 | printf("%-*s ", state_width, "State"); | |
3895 | printf("%-6s %-6s ", "Recv-Q", "Send-Q"); | |
3896 | ||
d68e00f7 | 3897 | /* Make enough space for the local/remote port field */ |
3898 | addr_width -= 13; | |
3899 | serv_width += 13; | |
2dc85485 | 3900 | |
aba5acdf SH |
3901 | printf("%*s:%-*s %*s:%-*s\n", |
3902 | addr_width, "Local Address", serv_width, "Port", | |
d68e00f7 | 3903 | addr_width, "Peer Address", serv_width, "Port"); |
aba5acdf | 3904 | |
aba5acdf SH |
3905 | fflush(stdout); |
3906 | ||
6885e3bf CG |
3907 | if (follow_events) |
3908 | exit(handle_follow_request(¤t_filter)); | |
3909 | ||
aba5acdf SH |
3910 | if (current_filter.dbs & (1<<NETLINK_DB)) |
3911 | netlink_show(¤t_filter); | |
3912 | if (current_filter.dbs & PACKET_DBM) | |
3913 | packet_show(¤t_filter); | |
3914 | if (current_filter.dbs & UNIX_DBM) | |
3915 | unix_show(¤t_filter); | |
3916 | if (current_filter.dbs & (1<<RAW_DB)) | |
3917 | raw_show(¤t_filter); | |
3918 | if (current_filter.dbs & (1<<UDP_DB)) | |
3919 | udp_show(¤t_filter); | |
3920 | if (current_filter.dbs & (1<<TCP_DB)) | |
3fe5b534 | 3921 | tcp_show(¤t_filter, IPPROTO_TCP); |
351efcde | 3922 | if (current_filter.dbs & (1<<DCCP_DB)) |
3fe5b534 | 3923 | tcp_show(¤t_filter, IPPROTO_DCCP); |
116ac927 RH |
3924 | |
3925 | if (show_users || show_proc_ctx || show_sock_ctx) | |
3926 | user_ent_destroy(); | |
3927 | ||
aba5acdf SH |
3928 | return 0; |
3929 | } |