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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> |
6b376ebd | 29 | #include <limits.h> |
aba5acdf SH |
30 | |
31 | #include "utils.h" | |
32 | #include "rt_names.h" | |
33 | #include "ll_map.h" | |
34 | #include "libnetlink.h" | |
95ce04bc | 35 | #include "namespace.h" |
aba5acdf SH |
36 | #include "SNAPSHOT.h" |
37 | ||
9cb1eccf | 38 | #include <linux/tcp.h> |
f6062360 | 39 | #include <linux/sock_diag.h> |
351efcde | 40 | #include <linux/inet_diag.h> |
dfbaa90d | 41 | #include <linux/unix_diag.h> |
372c30d2 ND |
42 | #include <linux/netdevice.h> /* for MAX_ADDR_LEN */ |
43 | #include <linux/filter.h> | |
44 | #include <linux/packet_diag.h> | |
ecb928c8 | 45 | #include <linux/netlink_diag.h> |
f89d46ad | 46 | #include <linux/sctp.h> |
aba5acdf | 47 | |
8a4025f6 | 48 | #define MAGIC_SEQ 123456 |
49 | ||
5fb421d4 | 50 | #define DIAG_REQUEST(_req, _r) \ |
51 | struct { \ | |
52 | struct nlmsghdr nlh; \ | |
53 | _r; \ | |
54 | } _req = { \ | |
55 | .nlh = { \ | |
56 | .nlmsg_type = SOCK_DIAG_BY_FAMILY, \ | |
57 | .nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST,\ | |
8a4025f6 | 58 | .nlmsg_seq = MAGIC_SEQ, \ |
5fb421d4 | 59 | .nlmsg_len = sizeof(_req), \ |
60 | }, \ | |
61 | } | |
62 | ||
116ac927 RH |
63 | #if HAVE_SELINUX |
64 | #include <selinux/selinux.h> | |
65 | #else | |
66 | /* Stubs for SELinux functions */ | |
67 | static int is_selinux_enabled(void) | |
68 | { | |
69 | return -1; | |
70 | } | |
71 | ||
72 | static int getpidcon(pid_t pid, char **context) | |
73 | { | |
74 | *context = NULL; | |
75 | return -1; | |
76 | } | |
77 | ||
78 | static int getfilecon(char *path, char **context) | |
79 | { | |
80 | *context = NULL; | |
81 | return -1; | |
82 | } | |
83 | ||
84 | static int security_get_initial_context(char *name, char **context) | |
85 | { | |
86 | *context = NULL; | |
87 | return -1; | |
88 | } | |
89 | #endif | |
90 | ||
acd1e437 | 91 | int resolve_hosts; |
aba5acdf SH |
92 | int resolve_services = 1; |
93 | int preferred_family = AF_UNSPEC; | |
acd1e437 SH |
94 | int show_options; |
95 | int show_details; | |
96 | int show_users; | |
97 | int show_mem; | |
98 | int show_tcpinfo; | |
99 | int show_bpf; | |
100 | int show_proc_ctx; | |
101 | int show_sock_ctx; | |
7a4559f6 | 102 | int show_header = 1; |
acd1e437 | 103 | int follow_events; |
f89d46ad | 104 | int sctp_ino; |
aba5acdf SH |
105 | |
106 | int netid_width; | |
107 | int state_width; | |
aba5acdf SH |
108 | int addr_width; |
109 | int serv_width; | |
aba5acdf SH |
110 | |
111 | static const char *TCP_PROTO = "tcp"; | |
f89d46ad | 112 | static const char *SCTP_PROTO = "sctp"; |
aba5acdf SH |
113 | static const char *UDP_PROTO = "udp"; |
114 | static const char *RAW_PROTO = "raw"; | |
acd1e437 | 115 | static const char *dg_proto; |
aba5acdf | 116 | |
acd1e437 | 117 | enum { |
aba5acdf | 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, | |
f89d46ad | 128 | SCTP_DB, |
aba5acdf SH |
129 | MAX_DB |
130 | }; | |
131 | ||
132 | #define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB)) | |
30b669d7 | 133 | #define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB)) |
aba5acdf | 134 | #define ALL_DB ((1<<MAX_DB)-1) |
168d97f9 SH |
135 | #define INET_L4_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<SCTP_DB)) |
136 | #define INET_DBM (INET_L4_DBM | (1<<RAW_DB)) | |
aba5acdf SH |
137 | |
138 | enum { | |
7d105b56 SH |
139 | SS_UNKNOWN, |
140 | SS_ESTABLISHED, | |
141 | SS_SYN_SENT, | |
142 | SS_SYN_RECV, | |
143 | SS_FIN_WAIT1, | |
144 | SS_FIN_WAIT2, | |
145 | SS_TIME_WAIT, | |
146 | SS_CLOSE, | |
147 | SS_CLOSE_WAIT, | |
148 | SS_LAST_ACK, | |
149 | SS_LISTEN, | |
150 | SS_CLOSING, | |
151 | SS_MAX | |
aba5acdf SH |
152 | }; |
153 | ||
f89d46ad PS |
154 | enum { |
155 | SCTP_STATE_CLOSED = 0, | |
156 | SCTP_STATE_COOKIE_WAIT = 1, | |
157 | SCTP_STATE_COOKIE_ECHOED = 2, | |
158 | SCTP_STATE_ESTABLISHED = 3, | |
159 | SCTP_STATE_SHUTDOWN_PENDING = 4, | |
160 | SCTP_STATE_SHUTDOWN_SENT = 5, | |
161 | SCTP_STATE_SHUTDOWN_RECEIVED = 6, | |
162 | SCTP_STATE_SHUTDOWN_ACK_SENT = 7, | |
163 | }; | |
164 | ||
9db7bf15 VK |
165 | #define SS_ALL ((1 << SS_MAX) - 1) |
166 | #define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV))) | |
aba5acdf SH |
167 | |
168 | #include "ssfilter.h" | |
169 | ||
acd1e437 | 170 | struct filter { |
aba5acdf SH |
171 | int dbs; |
172 | int states; | |
173 | int families; | |
174 | struct ssfilter *f; | |
fb2594c1 | 175 | bool kill; |
aba5acdf SH |
176 | }; |
177 | ||
9db7bf15 VK |
178 | static const struct filter default_dbs[MAX_DB] = { |
179 | [TCP_DB] = { | |
180 | .states = SS_CONN, | |
181 | .families = (1 << AF_INET) | (1 << AF_INET6), | |
182 | }, | |
183 | [DCCP_DB] = { | |
184 | .states = SS_CONN, | |
185 | .families = (1 << AF_INET) | (1 << AF_INET6), | |
186 | }, | |
187 | [UDP_DB] = { | |
f42a4574 | 188 | .states = (1 << SS_ESTABLISHED), |
9db7bf15 VK |
189 | .families = (1 << AF_INET) | (1 << AF_INET6), |
190 | }, | |
191 | [RAW_DB] = { | |
f42a4574 | 192 | .states = (1 << SS_ESTABLISHED), |
9db7bf15 VK |
193 | .families = (1 << AF_INET) | (1 << AF_INET6), |
194 | }, | |
195 | [UNIX_DG_DB] = { | |
196 | .states = (1 << SS_CLOSE), | |
197 | .families = (1 << AF_UNIX), | |
198 | }, | |
199 | [UNIX_ST_DB] = { | |
200 | .states = SS_CONN, | |
201 | .families = (1 << AF_UNIX), | |
202 | }, | |
203 | [UNIX_SQ_DB] = { | |
204 | .states = SS_CONN, | |
205 | .families = (1 << AF_UNIX), | |
206 | }, | |
207 | [PACKET_DG_DB] = { | |
208 | .states = (1 << SS_CLOSE), | |
209 | .families = (1 << AF_PACKET), | |
210 | }, | |
211 | [PACKET_R_DB] = { | |
212 | .states = (1 << SS_CLOSE), | |
213 | .families = (1 << AF_PACKET), | |
214 | }, | |
215 | [NETLINK_DB] = { | |
216 | .states = (1 << SS_CLOSE), | |
217 | .families = (1 << AF_NETLINK), | |
218 | }, | |
f89d46ad PS |
219 | [SCTP_DB] = { |
220 | .states = SS_CONN, | |
221 | .families = (1 << AF_INET) | (1 << AF_INET6), | |
222 | }, | |
aba5acdf SH |
223 | }; |
224 | ||
9db7bf15 VK |
225 | static const struct filter default_afs[AF_MAX] = { |
226 | [AF_INET] = { | |
227 | .dbs = INET_DBM, | |
228 | .states = SS_CONN, | |
229 | }, | |
230 | [AF_INET6] = { | |
231 | .dbs = INET_DBM, | |
232 | .states = SS_CONN, | |
233 | }, | |
234 | [AF_UNIX] = { | |
235 | .dbs = UNIX_DBM, | |
236 | .states = SS_CONN, | |
237 | }, | |
238 | [AF_PACKET] = { | |
239 | .dbs = PACKET_DBM, | |
240 | .states = (1 << SS_CLOSE), | |
241 | }, | |
242 | [AF_NETLINK] = { | |
243 | .dbs = (1 << NETLINK_DB), | |
244 | .states = (1 << SS_CLOSE), | |
245 | }, | |
246 | }; | |
247 | ||
248 | static int do_default = 1; | |
249 | static struct filter current_filter; | |
250 | ||
251 | static void filter_db_set(struct filter *f, int db) | |
252 | { | |
253 | f->states |= default_dbs[db].states; | |
9db7bf15 VK |
254 | f->dbs |= 1 << db; |
255 | do_default = 0; | |
256 | } | |
257 | ||
258 | static void filter_af_set(struct filter *f, int af) | |
259 | { | |
1527a17e VK |
260 | f->states |= default_afs[af].states; |
261 | f->families |= 1 << af; | |
262 | do_default = 0; | |
263 | preferred_family = af; | |
9db7bf15 VK |
264 | } |
265 | ||
266 | static int filter_af_get(struct filter *f, int af) | |
267 | { | |
268 | return f->families & (1 << af); | |
269 | } | |
270 | ||
271 | static void filter_default_dbs(struct filter *f) | |
272 | { | |
273 | filter_db_set(f, UDP_DB); | |
274 | filter_db_set(f, DCCP_DB); | |
275 | filter_db_set(f, TCP_DB); | |
276 | filter_db_set(f, RAW_DB); | |
277 | filter_db_set(f, UNIX_ST_DB); | |
278 | filter_db_set(f, UNIX_DG_DB); | |
279 | filter_db_set(f, UNIX_SQ_DB); | |
280 | filter_db_set(f, PACKET_R_DB); | |
281 | filter_db_set(f, PACKET_DG_DB); | |
282 | filter_db_set(f, NETLINK_DB); | |
f89d46ad | 283 | filter_db_set(f, SCTP_DB); |
9db7bf15 VK |
284 | } |
285 | ||
57ff5a10 | 286 | static void filter_states_set(struct filter *f, int states) |
9db7bf15 | 287 | { |
57ff5a10 | 288 | if (states) |
9d320e1e | 289 | f->states = states; |
57ff5a10 | 290 | } |
9db7bf15 | 291 | |
57ff5a10 VK |
292 | static void filter_merge_defaults(struct filter *f) |
293 | { | |
294 | int db; | |
295 | int af; | |
9db7bf15 | 296 | |
57ff5a10 VK |
297 | for (db = 0; db < MAX_DB; db++) { |
298 | if (!(f->dbs & (1 << db))) | |
299 | continue; | |
9db7bf15 | 300 | |
57ff5a10 VK |
301 | if (!(default_dbs[db].families & f->families)) |
302 | f->families |= default_dbs[db].families; | |
303 | } | |
304 | for (af = 0; af < AF_MAX; af++) { | |
305 | if (!(f->families & (1 << af))) | |
306 | continue; | |
307 | ||
308 | if (!(default_afs[af].dbs & f->dbs)) | |
309 | f->dbs |= default_afs[af].dbs; | |
310 | } | |
9db7bf15 | 311 | } |
aba5acdf | 312 | |
ab01dbbb | 313 | static FILE *generic_proc_open(const char *env, const char *name) |
aba5acdf | 314 | { |
ab01dbbb | 315 | const char *p = getenv(env); |
aba5acdf | 316 | char store[128]; |
ab01dbbb | 317 | |
aba5acdf SH |
318 | if (!p) { |
319 | p = getenv("PROC_ROOT") ? : "/proc"; | |
320 | snprintf(store, sizeof(store)-1, "%s/%s", p, name); | |
321 | p = store; | |
322 | } | |
ab01dbbb SH |
323 | |
324 | return fopen(p, "r"); | |
aba5acdf | 325 | } |
0cb74a86 PS |
326 | #define net_tcp_open() generic_proc_open("PROC_NET_TCP", "net/tcp") |
327 | #define net_tcp6_open() generic_proc_open("PROC_NET_TCP6", "net/tcp6") | |
328 | #define net_udp_open() generic_proc_open("PROC_NET_UDP", "net/udp") | |
329 | #define net_udp6_open() generic_proc_open("PROC_NET_UDP6", "net/udp6") | |
330 | #define net_raw_open() generic_proc_open("PROC_NET_RAW", "net/raw") | |
331 | #define net_raw6_open() generic_proc_open("PROC_NET_RAW6", "net/raw6") | |
332 | #define net_unix_open() generic_proc_open("PROC_NET_UNIX", "net/unix") | |
333 | #define net_packet_open() generic_proc_open("PROC_NET_PACKET", \ | |
334 | "net/packet") | |
335 | #define net_netlink_open() generic_proc_open("PROC_NET_NETLINK", \ | |
336 | "net/netlink") | |
337 | #define slabinfo_open() generic_proc_open("PROC_SLABINFO", "slabinfo") | |
338 | #define net_sockstat_open() generic_proc_open("PROC_NET_SOCKSTAT", \ | |
339 | "net/sockstat") | |
340 | #define net_sockstat6_open() generic_proc_open("PROC_NET_SOCKSTAT6", \ | |
341 | "net/sockstat6") | |
342 | #define net_snmp_open() generic_proc_open("PROC_NET_SNMP", "net/snmp") | |
343 | #define ephemeral_ports_open() generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", \ | |
344 | "sys/net/ipv4/ip_local_port_range") | |
aba5acdf | 345 | |
fbc0f876 SF |
346 | struct user_ent { |
347 | struct user_ent *next; | |
348 | unsigned int ino; | |
349 | int pid; | |
350 | int fd; | |
116ac927 RH |
351 | char *process; |
352 | char *process_ctx; | |
353 | char *socket_ctx; | |
fbc0f876 SF |
354 | }; |
355 | ||
356 | #define USER_ENT_HASH_SIZE 256 | |
357 | struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE]; | |
358 | ||
359 | static int user_ent_hashfn(unsigned int ino) | |
aba5acdf | 360 | { |
fbc0f876 | 361 | int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino; |
aba5acdf | 362 | |
fbc0f876 SF |
363 | return val & (USER_ENT_HASH_SIZE - 1); |
364 | } | |
365 | ||
116ac927 RH |
366 | static void user_ent_add(unsigned int ino, char *process, |
367 | int pid, int fd, | |
368 | char *proc_ctx, | |
369 | char *sock_ctx) | |
fbc0f876 SF |
370 | { |
371 | struct user_ent *p, **pp; | |
aba5acdf | 372 | |
116ac927 RH |
373 | p = malloc(sizeof(struct user_ent)); |
374 | if (!p) { | |
375 | fprintf(stderr, "ss: failed to malloc buffer\n"); | |
fbc0f876 | 376 | abort(); |
116ac927 | 377 | } |
fbc0f876 SF |
378 | p->next = NULL; |
379 | p->ino = ino; | |
380 | p->pid = pid; | |
381 | p->fd = fd; | |
116ac927 RH |
382 | p->process = strdup(process); |
383 | p->process_ctx = strdup(proc_ctx); | |
384 | p->socket_ctx = strdup(sock_ctx); | |
fbc0f876 SF |
385 | |
386 | pp = &user_ent_hash[user_ent_hashfn(ino)]; | |
387 | p->next = *pp; | |
388 | *pp = p; | |
389 | } | |
aba5acdf | 390 | |
116ac927 RH |
391 | static void user_ent_destroy(void) |
392 | { | |
393 | struct user_ent *p, *p_next; | |
394 | int cnt = 0; | |
395 | ||
396 | while (cnt != USER_ENT_HASH_SIZE) { | |
397 | p = user_ent_hash[cnt]; | |
398 | while (p) { | |
399 | free(p->process); | |
400 | free(p->process_ctx); | |
401 | free(p->socket_ctx); | |
402 | p_next = p->next; | |
403 | free(p); | |
404 | p = p_next; | |
405 | } | |
406 | cnt++; | |
407 | } | |
408 | } | |
409 | ||
fbc0f876 SF |
410 | static void user_ent_hash_build(void) |
411 | { | |
412 | const char *root = getenv("PROC_ROOT") ? : "/proc/"; | |
413 | struct dirent *d; | |
414 | char name[1024]; | |
415 | int nameoff; | |
416 | DIR *dir; | |
116ac927 RH |
417 | char *pid_context; |
418 | char *sock_context; | |
419 | const char *no_ctx = "unavailable"; | |
b25bad2f | 420 | static int user_ent_hash_build_init; |
116ac927 RH |
421 | |
422 | /* If show_users & show_proc_ctx set only do this once */ | |
423 | if (user_ent_hash_build_init != 0) | |
424 | return; | |
425 | ||
426 | user_ent_hash_build_init = 1; | |
fbc0f876 | 427 | |
0ee9052f | 428 | strncpy(name, root, sizeof(name)-1); |
429 | name[sizeof(name)-1] = 0; | |
430 | ||
fbc0f876 | 431 | if (strlen(name) == 0 || name[strlen(name)-1] != '/') |
aba5acdf | 432 | strcat(name, "/"); |
fbc0f876 | 433 | |
aba5acdf | 434 | nameoff = strlen(name); |
fbc0f876 SF |
435 | |
436 | dir = opendir(name); | |
437 | if (!dir) | |
438 | return; | |
aba5acdf SH |
439 | |
440 | while ((d = readdir(dir)) != NULL) { | |
aba5acdf | 441 | struct dirent *d1; |
aba5acdf | 442 | char process[16]; |
116ac927 | 443 | char *p; |
fbc0f876 SF |
444 | int pid, pos; |
445 | DIR *dir1; | |
446 | char crap; | |
aba5acdf SH |
447 | |
448 | if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1) | |
449 | continue; | |
450 | ||
116ac927 RH |
451 | if (getpidcon(pid, &pid_context) != 0) |
452 | pid_context = strdup(no_ctx); | |
453 | ||
0ee9052f | 454 | snprintf(name + nameoff, sizeof(name) - nameoff, "%d/fd/", pid); |
aba5acdf | 455 | pos = strlen(name); |
a02371fb PS |
456 | if ((dir1 = opendir(name)) == NULL) { |
457 | free(pid_context); | |
aba5acdf | 458 | continue; |
a02371fb | 459 | } |
aba5acdf | 460 | |
fbc0f876 | 461 | process[0] = '\0'; |
116ac927 | 462 | p = process; |
aba5acdf SH |
463 | |
464 | while ((d1 = readdir(dir1)) != NULL) { | |
fbc0f876 SF |
465 | const char *pattern = "socket:["; |
466 | unsigned int ino; | |
aba5acdf | 467 | char lnk[64]; |
18445b3e | 468 | int fd; |
788731b3 | 469 | ssize_t link_len; |
116ac927 | 470 | char tmp[1024]; |
aba5acdf SH |
471 | |
472 | if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1) | |
473 | continue; | |
474 | ||
0ee9052f | 475 | snprintf(name+pos, sizeof(name) - pos, "%d", fd); |
788731b3 TJ |
476 | |
477 | link_len = readlink(name, lnk, sizeof(lnk)-1); | |
478 | if (link_len == -1) | |
479 | continue; | |
480 | lnk[link_len] = '\0'; | |
481 | ||
482 | if (strncmp(lnk, pattern, strlen(pattern))) | |
aba5acdf SH |
483 | continue; |
484 | ||
fbc0f876 | 485 | sscanf(lnk, "socket:[%u]", &ino); |
aba5acdf | 486 | |
116ac927 RH |
487 | snprintf(tmp, sizeof(tmp), "%s/%d/fd/%s", |
488 | root, pid, d1->d_name); | |
489 | ||
490 | if (getfilecon(tmp, &sock_context) <= 0) | |
491 | sock_context = strdup(no_ctx); | |
492 | ||
493 | if (*p == '\0') { | |
aba5acdf | 494 | FILE *fp; |
fbc0f876 | 495 | |
116ac927 RH |
496 | snprintf(tmp, sizeof(tmp), "%s/%d/stat", |
497 | root, pid); | |
aba5acdf | 498 | if ((fp = fopen(tmp, "r")) != NULL) { |
d572ed4d PS |
499 | if (fscanf(fp, "%*d (%[^)])", p) < 1) |
500 | ; /* ignore */ | |
aba5acdf SH |
501 | fclose(fp); |
502 | } | |
503 | } | |
116ac927 RH |
504 | user_ent_add(ino, p, pid, fd, |
505 | pid_context, sock_context); | |
506 | free(sock_context); | |
aba5acdf | 507 | } |
116ac927 | 508 | free(pid_context); |
aba5acdf SH |
509 | closedir(dir1); |
510 | } | |
511 | closedir(dir); | |
fbc0f876 SF |
512 | } |
513 | ||
116ac927 RH |
514 | enum entry_types { |
515 | USERS, | |
516 | PROC_CTX, | |
517 | PROC_SOCK_CTX | |
518 | }; | |
519 | ||
520 | #define ENTRY_BUF_SIZE 512 | |
acd1e437 | 521 | static int find_entry(unsigned int ino, char **buf, int type) |
fbc0f876 SF |
522 | { |
523 | struct user_ent *p; | |
524 | int cnt = 0; | |
525 | char *ptr; | |
532ca40a | 526 | char *new_buf; |
116ac927 RH |
527 | int len, new_buf_len; |
528 | int buf_used = 0; | |
529 | int buf_len = 0; | |
fbc0f876 SF |
530 | |
531 | if (!ino) | |
532 | return 0; | |
533 | ||
534 | p = user_ent_hash[user_ent_hashfn(ino)]; | |
116ac927 | 535 | ptr = *buf = NULL; |
fbc0f876 SF |
536 | while (p) { |
537 | if (p->ino != ino) | |
538 | goto next; | |
539 | ||
116ac927 RH |
540 | while (1) { |
541 | ptr = *buf + buf_used; | |
542 | switch (type) { | |
543 | case USERS: | |
544 | len = snprintf(ptr, buf_len - buf_used, | |
545 | "(\"%s\",pid=%d,fd=%d),", | |
546 | p->process, p->pid, p->fd); | |
547 | break; | |
548 | case PROC_CTX: | |
549 | len = snprintf(ptr, buf_len - buf_used, | |
550 | "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),", | |
551 | p->process, p->pid, | |
552 | p->process_ctx, p->fd); | |
553 | break; | |
554 | case PROC_SOCK_CTX: | |
555 | len = snprintf(ptr, buf_len - buf_used, | |
556 | "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),", | |
557 | p->process, p->pid, | |
558 | p->process_ctx, p->fd, | |
559 | p->socket_ctx); | |
560 | break; | |
561 | default: | |
562 | fprintf(stderr, "ss: invalid type: %d\n", type); | |
563 | abort(); | |
564 | } | |
fbc0f876 | 565 | |
116ac927 RH |
566 | if (len < 0 || len >= buf_len - buf_used) { |
567 | new_buf_len = buf_len + ENTRY_BUF_SIZE; | |
532ca40a | 568 | new_buf = realloc(*buf, new_buf_len); |
116ac927 RH |
569 | if (!new_buf) { |
570 | fprintf(stderr, "ss: failed to malloc buffer\n"); | |
571 | abort(); | |
572 | } | |
532ca40a | 573 | *buf = new_buf; |
116ac927 RH |
574 | buf_len = new_buf_len; |
575 | continue; | |
576 | } else { | |
577 | buf_used += len; | |
578 | break; | |
579 | } | |
580 | } | |
fbc0f876 | 581 | cnt++; |
116ac927 | 582 | next: |
fbc0f876 SF |
583 | p = p->next; |
584 | } | |
116ac927 RH |
585 | if (buf_used) { |
586 | ptr = *buf + buf_used; | |
fbc0f876 | 587 | ptr[-1] = '\0'; |
116ac927 | 588 | } |
aba5acdf SH |
589 | return cnt; |
590 | } | |
591 | ||
aba5acdf SH |
592 | /* Get stats from slab */ |
593 | ||
acd1e437 | 594 | struct slabstat { |
aba5acdf SH |
595 | int socks; |
596 | int tcp_ports; | |
597 | int tcp_tws; | |
598 | int tcp_syns; | |
599 | int skbs; | |
600 | }; | |
601 | ||
a221d621 | 602 | static struct slabstat slabstat; |
aba5acdf | 603 | |
d1f28cf1 | 604 | static int get_slabstat(struct slabstat *s) |
aba5acdf SH |
605 | { |
606 | char buf[256]; | |
607 | FILE *fp; | |
608 | int cnt; | |
a221d621 | 609 | static int slabstat_valid; |
b3535dd6 PS |
610 | static const char * const slabstat_ids[] = { |
611 | "sock", | |
612 | "tcp_bind_bucket", | |
613 | "tcp_tw_bucket", | |
614 | "tcp_open_request", | |
615 | "skbuff_head_cache", | |
616 | }; | |
a221d621 BL |
617 | |
618 | if (slabstat_valid) | |
619 | return 0; | |
aba5acdf SH |
620 | |
621 | memset(s, 0, sizeof(*s)); | |
622 | ||
ab01dbbb SH |
623 | fp = slabinfo_open(); |
624 | if (!fp) | |
aba5acdf SH |
625 | return -1; |
626 | ||
627 | cnt = sizeof(*s)/sizeof(int); | |
628 | ||
d572ed4d PS |
629 | if (!fgets(buf, sizeof(buf), fp)) { |
630 | fclose(fp); | |
631 | return -1; | |
632 | } | |
acd1e437 | 633 | while (fgets(buf, sizeof(buf), fp) != NULL) { |
aba5acdf | 634 | int i; |
acd1e437 | 635 | |
62000e51 | 636 | for (i = 0; i < ARRAY_SIZE(slabstat_ids); i++) { |
aba5acdf SH |
637 | if (memcmp(buf, slabstat_ids[i], strlen(slabstat_ids[i])) == 0) { |
638 | sscanf(buf, "%*s%d", ((int *)s) + i); | |
639 | cnt--; | |
640 | break; | |
641 | } | |
642 | } | |
643 | if (cnt <= 0) | |
644 | break; | |
645 | } | |
646 | ||
a221d621 BL |
647 | slabstat_valid = 1; |
648 | ||
aba5acdf SH |
649 | fclose(fp); |
650 | return 0; | |
651 | } | |
652 | ||
2e7e805d | 653 | static unsigned long long cookie_sk_get(const uint32_t *cookie) |
f1b39e1b | 654 | { |
2e7e805d | 655 | return (((unsigned long long)cookie[1] << 31) << 1) | cookie[0]; |
f1b39e1b VK |
656 | } |
657 | ||
f89d46ad PS |
658 | static const char *sctp_sstate_name[] = { |
659 | [SCTP_STATE_CLOSED] = "CLOSED", | |
660 | [SCTP_STATE_COOKIE_WAIT] = "COOKIE_WAIT", | |
661 | [SCTP_STATE_COOKIE_ECHOED] = "COOKIE_ECHOED", | |
662 | [SCTP_STATE_ESTABLISHED] = "ESTAB", | |
663 | [SCTP_STATE_SHUTDOWN_PENDING] = "SHUTDOWN_PENDING", | |
664 | [SCTP_STATE_SHUTDOWN_SENT] = "SHUTDOWN_SENT", | |
665 | [SCTP_STATE_SHUTDOWN_RECEIVED] = "SHUTDOWN_RECEIVED", | |
666 | [SCTP_STATE_SHUTDOWN_ACK_SENT] = "ACK_SENT", | |
667 | }; | |
668 | ||
acd1e437 | 669 | struct sockstat { |
ec4d0d8a VK |
670 | struct sockstat *next; |
671 | unsigned int type; | |
89f634f9 | 672 | uint16_t prot; |
41fe6c34 | 673 | uint16_t raw_prot; |
8250bc9f VK |
674 | inet_prefix local; |
675 | inet_prefix remote; | |
676 | int lport; | |
677 | int rport; | |
678 | int state; | |
679 | int rq, wq; | |
acd1e437 SH |
680 | unsigned int ino; |
681 | unsigned int uid; | |
8250bc9f VK |
682 | int refcnt; |
683 | unsigned int iface; | |
684 | unsigned long long sk; | |
99bb68ff VK |
685 | char *name; |
686 | char *peer_name; | |
ec75249b | 687 | __u32 mark; |
055840f2 VK |
688 | }; |
689 | ||
acd1e437 | 690 | struct dctcpstat { |
055840f2 VK |
691 | unsigned int ce_state; |
692 | unsigned int alpha; | |
693 | unsigned int ab_ecn; | |
694 | unsigned int ab_tot; | |
695 | bool enabled; | |
696 | }; | |
697 | ||
acd1e437 | 698 | struct tcpstat { |
055840f2 | 699 | struct sockstat ss; |
4cbf5224 PS |
700 | unsigned int timer; |
701 | unsigned int timeout; | |
8250bc9f | 702 | int probes; |
d2055ea5 | 703 | char cong_alg[16]; |
8250bc9f | 704 | double rto, ato, rtt, rttvar; |
d1f338b3 | 705 | int qack, ssthresh, backoff; |
8250bc9f VK |
706 | double send_bps; |
707 | int snd_wscale; | |
708 | int rcv_wscale; | |
709 | int mss; | |
38e6dbc4 ED |
710 | int rcv_mss; |
711 | int advmss; | |
d1f338b3 | 712 | unsigned int cwnd; |
8250bc9f VK |
713 | unsigned int lastsnd; |
714 | unsigned int lastrcv; | |
715 | unsigned int lastack; | |
716 | double pacing_rate; | |
717 | double pacing_rate_max; | |
2f579872 | 718 | double delivery_rate; |
1a4dda71 ED |
719 | unsigned long long bytes_acked; |
720 | unsigned long long bytes_received; | |
ecb435ea CG |
721 | unsigned int segs_out; |
722 | unsigned int segs_in; | |
414aeec9 MKL |
723 | unsigned int data_segs_out; |
724 | unsigned int data_segs_in; | |
8250bc9f VK |
725 | unsigned int unacked; |
726 | unsigned int retrans; | |
727 | unsigned int retrans_total; | |
728 | unsigned int lost; | |
729 | unsigned int sacked; | |
730 | unsigned int fackets; | |
731 | unsigned int reordering; | |
9e99e495 | 732 | unsigned int not_sent; |
8250bc9f | 733 | double rcv_rtt; |
9e99e495 | 734 | double min_rtt; |
8250bc9f | 735 | int rcv_space; |
b6c7fc61 YC |
736 | unsigned long long busy_time; |
737 | unsigned long long rwnd_limited; | |
738 | unsigned long long sndbuf_limited; | |
8250bc9f VK |
739 | bool has_ts_opt; |
740 | bool has_sack_opt; | |
741 | bool has_ecn_opt; | |
742 | bool has_ecnseen_opt; | |
743 | bool has_fastopen_opt; | |
744 | bool has_wscale_opt; | |
2f579872 | 745 | bool app_limited; |
8250bc9f | 746 | struct dctcpstat *dctcp; |
2f0f9aef | 747 | struct tcp_bbr_info *bbr_info; |
aba5acdf SH |
748 | }; |
749 | ||
f89d46ad PS |
750 | /* SCTP assocs share the same inode number with their parent endpoint. So if we |
751 | * have seen the inode number before, it must be an assoc instead of the next | |
752 | * endpoint. */ | |
753 | static bool is_sctp_assoc(struct sockstat *s, const char *sock_name) | |
754 | { | |
755 | if (strcmp(sock_name, "sctp")) | |
756 | return false; | |
757 | if (!sctp_ino || sctp_ino != s->ino) | |
758 | return false; | |
759 | return true; | |
760 | } | |
761 | ||
be7e4d20 PS |
762 | static const char *unix_netid_name(int type) |
763 | { | |
764 | switch (type) { | |
765 | case SOCK_STREAM: | |
766 | return "u_str"; | |
767 | case SOCK_SEQPACKET: | |
768 | return "u_seq"; | |
769 | case SOCK_DGRAM: | |
770 | default: | |
771 | return "u_dgr"; | |
772 | } | |
773 | } | |
774 | ||
775 | static const char *proto_name(int protocol) | |
2d791bc8 | 776 | { |
be7e4d20 PS |
777 | switch (protocol) { |
778 | case 0: | |
779 | return "raw"; | |
780 | case IPPROTO_UDP: | |
781 | return "udp"; | |
782 | case IPPROTO_TCP: | |
783 | return "tcp"; | |
784 | case IPPROTO_SCTP: | |
785 | return "sctp"; | |
786 | case IPPROTO_DCCP: | |
787 | return "dccp"; | |
788 | } | |
789 | ||
790 | return "???"; | |
791 | } | |
792 | ||
793 | static void sock_state_print(struct sockstat *s) | |
794 | { | |
795 | const char *sock_name; | |
1882c0db PS |
796 | static const char * const sstate_name[] = { |
797 | "UNKNOWN", | |
798 | [SS_ESTABLISHED] = "ESTAB", | |
799 | [SS_SYN_SENT] = "SYN-SENT", | |
800 | [SS_SYN_RECV] = "SYN-RECV", | |
801 | [SS_FIN_WAIT1] = "FIN-WAIT-1", | |
802 | [SS_FIN_WAIT2] = "FIN-WAIT-2", | |
803 | [SS_TIME_WAIT] = "TIME-WAIT", | |
804 | [SS_CLOSE] = "UNCONN", | |
805 | [SS_CLOSE_WAIT] = "CLOSE-WAIT", | |
806 | [SS_LAST_ACK] = "LAST-ACK", | |
807 | [SS_LISTEN] = "LISTEN", | |
808 | [SS_CLOSING] = "CLOSING", | |
809 | }; | |
be7e4d20 PS |
810 | |
811 | switch (s->local.family) { | |
812 | case AF_UNIX: | |
813 | sock_name = unix_netid_name(s->type); | |
814 | break; | |
815 | case AF_INET: | |
816 | case AF_INET6: | |
817 | sock_name = proto_name(s->type); | |
818 | break; | |
819 | case AF_PACKET: | |
820 | sock_name = s->type == SOCK_RAW ? "p_raw" : "p_dgr"; | |
821 | break; | |
822 | case AF_NETLINK: | |
823 | sock_name = "nl"; | |
824 | break; | |
825 | default: | |
826 | sock_name = "unknown"; | |
827 | } | |
828 | ||
2d791bc8 | 829 | if (netid_width) |
f89d46ad PS |
830 | printf("%-*s ", netid_width, |
831 | is_sctp_assoc(s, sock_name) ? "" : sock_name); | |
832 | if (state_width) { | |
833 | if (is_sctp_assoc(s, sock_name)) | |
834 | printf("`- %-*s ", state_width - 3, | |
835 | sctp_sstate_name[s->state]); | |
836 | else | |
837 | printf("%-*s ", state_width, sstate_name[s->state]); | |
838 | } | |
2d791bc8 VK |
839 | |
840 | printf("%-6d %-6d ", s->rq, s->wq); | |
841 | } | |
842 | ||
f1b39e1b VK |
843 | static void sock_details_print(struct sockstat *s) |
844 | { | |
845 | if (s->uid) | |
846 | printf(" uid:%u", s->uid); | |
847 | ||
848 | printf(" ino:%u", s->ino); | |
849 | printf(" sk:%llx", s->sk); | |
ec75249b LC |
850 | |
851 | if (s->mark) | |
852 | printf(" fwmark:0x%x", s->mark); | |
f1b39e1b VK |
853 | } |
854 | ||
b217df10 VK |
855 | static void sock_addr_print_width(int addr_len, const char *addr, char *delim, |
856 | int port_len, const char *port, const char *ifname) | |
857 | { | |
858 | if (ifname) { | |
859 | printf("%*s%%%s%s%-*s ", addr_len, addr, ifname, delim, | |
860 | port_len, port); | |
acd1e437 | 861 | } else { |
b217df10 VK |
862 | printf("%*s%s%-*s ", addr_len, addr, delim, port_len, port); |
863 | } | |
864 | } | |
865 | ||
866 | static void sock_addr_print(const char *addr, char *delim, const char *port, | |
867 | const char *ifname) | |
868 | { | |
869 | sock_addr_print_width(addr_width, addr, delim, serv_width, port, ifname); | |
870 | } | |
871 | ||
4cbf5224 | 872 | static const char *print_ms_timer(unsigned int timeout) |
aba5acdf SH |
873 | { |
874 | static char buf[64]; | |
875 | int secs, msecs, minutes; | |
acd1e437 | 876 | |
aba5acdf SH |
877 | secs = timeout/1000; |
878 | minutes = secs/60; | |
879 | secs = secs%60; | |
880 | msecs = timeout%1000; | |
881 | buf[0] = 0; | |
882 | if (minutes) { | |
883 | msecs = 0; | |
884 | snprintf(buf, sizeof(buf)-16, "%dmin", minutes); | |
885 | if (minutes > 9) | |
886 | secs = 0; | |
887 | } | |
888 | if (secs) { | |
889 | if (secs > 9) | |
890 | msecs = 0; | |
891 | sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec"); | |
892 | } | |
893 | if (msecs) | |
894 | sprintf(buf+strlen(buf), "%03dms", msecs); | |
895 | return buf; | |
e7113c61 | 896 | } |
aba5acdf | 897 | |
22588a0e | 898 | struct scache { |
aba5acdf SH |
899 | struct scache *next; |
900 | int port; | |
901 | char *name; | |
902 | const char *proto; | |
903 | }; | |
904 | ||
905 | struct scache *rlist; | |
906 | ||
d1f28cf1 | 907 | static void init_service_resolver(void) |
aba5acdf SH |
908 | { |
909 | char buf[128]; | |
910 | FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r"); | |
596307ea PS |
911 | |
912 | if (!fp) | |
913 | return; | |
914 | ||
915 | if (!fgets(buf, sizeof(buf), fp)) { | |
2bcc3c16 | 916 | pclose(fp); |
596307ea PS |
917 | return; |
918 | } | |
919 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
920 | unsigned int progn, port; | |
921 | char proto[128], prog[128] = "rpc."; | |
922 | struct scache *c; | |
923 | ||
924 | if (sscanf(buf, "%u %*d %s %u %s", | |
acd1e437 | 925 | &progn, proto, &port, prog+4) != 4) |
596307ea PS |
926 | continue; |
927 | ||
928 | if (!(c = malloc(sizeof(*c)))) | |
929 | continue; | |
930 | ||
931 | c->port = port; | |
932 | c->name = strdup(prog); | |
933 | if (strcmp(proto, TCP_PROTO) == 0) | |
934 | c->proto = TCP_PROTO; | |
935 | else if (strcmp(proto, UDP_PROTO) == 0) | |
936 | c->proto = UDP_PROTO; | |
f89d46ad PS |
937 | else if (strcmp(proto, SCTP_PROTO) == 0) |
938 | c->proto = SCTP_PROTO; | |
596307ea PS |
939 | else |
940 | c->proto = NULL; | |
941 | c->next = rlist; | |
942 | rlist = c; | |
aba5acdf | 943 | } |
596307ea | 944 | pclose(fp); |
aba5acdf SH |
945 | } |
946 | ||
ab61159a SH |
947 | /* Even do not try default linux ephemeral port ranges: |
948 | * default /etc/services contains so much of useless crap | |
949 | * wouldbe "allocated" to this area that resolution | |
950 | * is really harmful. I shrug each time when seeing | |
951 | * "socks" or "cfinger" in dumps. | |
952 | */ | |
953 | static int is_ephemeral(int port) | |
954 | { | |
acd1e437 | 955 | static int min = 0, max; |
c29d3792 PS |
956 | |
957 | if (!min) { | |
ab01dbbb | 958 | FILE *f = ephemeral_ports_open(); |
acd1e437 | 959 | |
c29d3792 PS |
960 | if (!f || fscanf(f, "%d %d", &min, &max) < 2) { |
961 | min = 1024; | |
962 | max = 4999; | |
ab61159a | 963 | } |
c29d3792 PS |
964 | if (f) |
965 | fclose(f); | |
ab61159a | 966 | } |
c29d3792 | 967 | return port >= min && port <= max; |
ab61159a SH |
968 | } |
969 | ||
970 | ||
d1f28cf1 | 971 | static const char *__resolve_service(int port) |
aba5acdf SH |
972 | { |
973 | struct scache *c; | |
974 | ||
975 | for (c = rlist; c; c = c->next) { | |
976 | if (c->port == port && c->proto == dg_proto) | |
977 | return c->name; | |
978 | } | |
979 | ||
ab61159a | 980 | if (!is_ephemeral(port)) { |
aba5acdf SH |
981 | static int notfirst; |
982 | struct servent *se; | |
acd1e437 | 983 | |
aba5acdf SH |
984 | if (!notfirst) { |
985 | setservent(1); | |
986 | notfirst = 1; | |
ae665a52 | 987 | } |
aba5acdf SH |
988 | se = getservbyport(htons(port), dg_proto); |
989 | if (se) | |
990 | return se->s_name; | |
991 | } | |
992 | ||
993 | return NULL; | |
994 | } | |
995 | ||
22588a0e ED |
996 | #define SCACHE_BUCKETS 1024 |
997 | static struct scache *cache_htab[SCACHE_BUCKETS]; | |
aba5acdf | 998 | |
d1f28cf1 | 999 | static const char *resolve_service(int port) |
aba5acdf SH |
1000 | { |
1001 | static char buf[128]; | |
22588a0e ED |
1002 | struct scache *c; |
1003 | const char *res; | |
1004 | int hash; | |
aba5acdf SH |
1005 | |
1006 | if (port == 0) { | |
1007 | buf[0] = '*'; | |
1008 | buf[1] = 0; | |
1009 | return buf; | |
1010 | } | |
1011 | ||
22588a0e ED |
1012 | if (!resolve_services) |
1013 | goto do_numeric; | |
aba5acdf | 1014 | |
22588a0e ED |
1015 | if (dg_proto == RAW_PROTO) |
1016 | return inet_proto_n2a(port, buf, sizeof(buf)); | |
1017 | ||
1018 | ||
1019 | hash = (port^(((unsigned long)dg_proto)>>2)) % SCACHE_BUCKETS; | |
1020 | ||
1021 | for (c = cache_htab[hash]; c; c = c->next) { | |
1022 | if (c->port == port && c->proto == dg_proto) | |
1023 | goto do_cache; | |
aba5acdf SH |
1024 | } |
1025 | ||
22588a0e ED |
1026 | c = malloc(sizeof(*c)); |
1027 | if (!c) | |
1028 | goto do_numeric; | |
1029 | res = __resolve_service(port); | |
1030 | c->port = port; | |
1031 | c->name = res ? strdup(res) : NULL; | |
1032 | c->proto = dg_proto; | |
1033 | c->next = cache_htab[hash]; | |
1034 | cache_htab[hash] = c; | |
1035 | ||
1036 | do_cache: | |
1037 | if (c->name) | |
1038 | return c->name; | |
1039 | ||
1040 | do_numeric: | |
aba5acdf SH |
1041 | sprintf(buf, "%u", port); |
1042 | return buf; | |
1043 | } | |
1044 | ||
b217df10 | 1045 | static void inet_addr_print(const inet_prefix *a, int port, unsigned int ifindex) |
aba5acdf SH |
1046 | { |
1047 | char buf[1024]; | |
1048 | const char *ap = buf; | |
b217df10 VK |
1049 | int est_len = addr_width; |
1050 | const char *ifname = NULL; | |
aba5acdf SH |
1051 | |
1052 | if (a->family == AF_INET) { | |
1053 | if (a->data[0] == 0) { | |
1054 | buf[0] = '*'; | |
1055 | buf[1] = 0; | |
1056 | } else { | |
a418e451 | 1057 | ap = format_host(AF_INET, 4, a->data); |
aba5acdf SH |
1058 | } |
1059 | } else { | |
aba9c23a SH |
1060 | if (!memcmp(a->data, &in6addr_any, sizeof(in6addr_any))) { |
1061 | buf[0] = '*'; | |
1062 | buf[1] = 0; | |
1063 | } else { | |
1064 | ap = format_host(a->family, 16, a->data); | |
1065 | ||
1066 | /* Numeric IPv6 addresses should be bracketed */ | |
1067 | if (strchr(ap, ':')) { | |
1068 | snprintf(buf, sizeof(buf), | |
1069 | "[%s]", ap); | |
1070 | ap = buf; | |
1071 | } | |
1072 | ||
1073 | est_len = strlen(ap); | |
1074 | if (est_len <= addr_width) | |
1075 | est_len = addr_width; | |
1076 | else | |
1077 | est_len = addr_width + ((est_len-addr_width+3)/4)*4; | |
1078 | } | |
aba5acdf | 1079 | } |
b217df10 | 1080 | |
7c8a3cfb | 1081 | if (ifindex) { |
b217df10 VK |
1082 | ifname = ll_index_to_name(ifindex); |
1083 | est_len -= strlen(ifname) + 1; /* +1 for percent char */ | |
4fcfb6bc MS |
1084 | if (est_len < 0) |
1085 | est_len = 0; | |
b217df10 | 1086 | } |
7c8a3cfb | 1087 | |
b217df10 VK |
1088 | sock_addr_print_width(est_len, ap, ":", serv_width, resolve_service(port), |
1089 | ifname); | |
aba5acdf SH |
1090 | } |
1091 | ||
acd1e437 | 1092 | struct aafilter { |
aba5acdf SH |
1093 | inet_prefix addr; |
1094 | int port; | |
2d293212 | 1095 | unsigned int iface; |
ec75249b LC |
1096 | __u32 mark; |
1097 | __u32 mask; | |
aba5acdf SH |
1098 | struct aafilter *next; |
1099 | }; | |
1100 | ||
d1f28cf1 SH |
1101 | static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p, |
1102 | int plen) | |
aba5acdf SH |
1103 | { |
1104 | if (!inet_addr_match(a, p, plen)) | |
1105 | return 0; | |
7d105b56 | 1106 | |
aba5acdf SH |
1107 | /* Cursed "v4 mapped" addresses: v4 mapped socket matches |
1108 | * pure IPv4 rule, but v4-mapped rule selects only v4-mapped | |
1109 | * sockets. Fair? */ | |
1110 | if (p->family == AF_INET && a->family == AF_INET6) { | |
1111 | if (a->data[0] == 0 && a->data[1] == 0 && | |
1112 | a->data[2] == htonl(0xffff)) { | |
1113 | inet_prefix tmp = *a; | |
acd1e437 | 1114 | |
aba5acdf SH |
1115 | tmp.data[0] = a->data[3]; |
1116 | return inet_addr_match(&tmp, p, plen); | |
1117 | } | |
1118 | } | |
1119 | return 1; | |
1120 | } | |
1121 | ||
d1f28cf1 | 1122 | static int unix_match(const inet_prefix *a, const inet_prefix *p) |
aba5acdf | 1123 | { |
99bb68ff | 1124 | char *addr, *pattern; |
acd1e437 | 1125 | |
99bb68ff VK |
1126 | memcpy(&addr, a->data, sizeof(addr)); |
1127 | memcpy(&pattern, p->data, sizeof(pattern)); | |
aba5acdf SH |
1128 | if (pattern == NULL) |
1129 | return 1; | |
1130 | if (addr == NULL) | |
1131 | addr = ""; | |
1132 | return !fnmatch(pattern, addr, 0); | |
1133 | } | |
1134 | ||
055840f2 | 1135 | static int run_ssfilter(struct ssfilter *f, struct sockstat *s) |
aba5acdf SH |
1136 | { |
1137 | switch (f->type) { | |
1138 | case SSF_S_AUTO: | |
1139 | { | |
aba5acdf | 1140 | if (s->local.family == AF_UNIX) { |
99bb68ff | 1141 | char *p; |
acd1e437 | 1142 | |
99bb68ff | 1143 | memcpy(&p, s->local.data, sizeof(p)); |
aba5acdf | 1144 | return p == NULL || (p[0] == '@' && strlen(p) == 6 && |
ae665a52 | 1145 | strspn(p+1, "0123456789abcdef") == 5); |
aba5acdf SH |
1146 | } |
1147 | if (s->local.family == AF_PACKET) | |
bbd303d1 | 1148 | return s->lport == 0 && s->local.data[0] == 0; |
aba5acdf SH |
1149 | if (s->local.family == AF_NETLINK) |
1150 | return s->lport < 0; | |
1151 | ||
c29d3792 | 1152 | return is_ephemeral(s->lport); |
aba5acdf SH |
1153 | } |
1154 | case SSF_DCOND: | |
1155 | { | |
acd1e437 SH |
1156 | struct aafilter *a = (void *)f->pred; |
1157 | ||
aba5acdf SH |
1158 | if (a->addr.family == AF_UNIX) |
1159 | return unix_match(&s->remote, &a->addr); | |
1160 | if (a->port != -1 && a->port != s->rport) | |
1161 | return 0; | |
1162 | if (a->addr.bitlen) { | |
1163 | do { | |
1164 | if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen)) | |
1165 | return 1; | |
1166 | } while ((a = a->next) != NULL); | |
1167 | return 0; | |
1168 | } | |
1169 | return 1; | |
1170 | } | |
1171 | case SSF_SCOND: | |
1172 | { | |
acd1e437 SH |
1173 | struct aafilter *a = (void *)f->pred; |
1174 | ||
aba5acdf SH |
1175 | if (a->addr.family == AF_UNIX) |
1176 | return unix_match(&s->local, &a->addr); | |
1177 | if (a->port != -1 && a->port != s->lport) | |
1178 | return 0; | |
1179 | if (a->addr.bitlen) { | |
1180 | do { | |
1181 | if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen)) | |
1182 | return 1; | |
ae665a52 | 1183 | } while ((a = a->next) != NULL); |
aba5acdf SH |
1184 | return 0; |
1185 | } | |
1186 | return 1; | |
1187 | } | |
1188 | case SSF_D_GE: | |
1189 | { | |
acd1e437 SH |
1190 | struct aafilter *a = (void *)f->pred; |
1191 | ||
aba5acdf SH |
1192 | return s->rport >= a->port; |
1193 | } | |
1194 | case SSF_D_LE: | |
1195 | { | |
acd1e437 SH |
1196 | struct aafilter *a = (void *)f->pred; |
1197 | ||
aba5acdf SH |
1198 | return s->rport <= a->port; |
1199 | } | |
1200 | case SSF_S_GE: | |
1201 | { | |
acd1e437 SH |
1202 | struct aafilter *a = (void *)f->pred; |
1203 | ||
aba5acdf SH |
1204 | return s->lport >= a->port; |
1205 | } | |
1206 | case SSF_S_LE: | |
1207 | { | |
acd1e437 SH |
1208 | struct aafilter *a = (void *)f->pred; |
1209 | ||
aba5acdf SH |
1210 | return s->lport <= a->port; |
1211 | } | |
2d293212 DA |
1212 | case SSF_DEVCOND: |
1213 | { | |
1214 | struct aafilter *a = (void *)f->pred; | |
aba5acdf | 1215 | |
2d293212 | 1216 | return s->iface == a->iface; |
ec75249b LC |
1217 | } |
1218 | case SSF_MARKMASK: | |
1219 | { | |
1220 | struct aafilter *a = (void *)f->pred; | |
1221 | ||
1222 | return (s->mark & a->mask) == a->mark; | |
2d293212 | 1223 | } |
aba5acdf SH |
1224 | /* Yup. It is recursion. Sorry. */ |
1225 | case SSF_AND: | |
1226 | return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s); | |
1227 | case SSF_OR: | |
1228 | return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s); | |
1229 | case SSF_NOT: | |
1230 | return !run_ssfilter(f->pred, s); | |
1231 | default: | |
1232 | abort(); | |
1233 | } | |
1234 | } | |
1235 | ||
ae665a52 | 1236 | /* Relocate external jumps by reloc. */ |
b4b0b7d5 | 1237 | static void ssfilter_patch(char *a, int len, int reloc) |
aba5acdf SH |
1238 | { |
1239 | while (len > 0) { | |
acd1e437 SH |
1240 | struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)a; |
1241 | ||
aba5acdf SH |
1242 | if (op->no == len+4) |
1243 | op->no += reloc; | |
1244 | len -= op->yes; | |
1245 | a += op->yes; | |
1246 | } | |
1247 | if (len < 0) | |
1248 | abort(); | |
1249 | } | |
1250 | ||
b4b0b7d5 | 1251 | static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode) |
aba5acdf SH |
1252 | { |
1253 | switch (f->type) { | |
1254 | case SSF_S_AUTO: | |
1255 | { | |
acd1e437 SH |
1256 | if (!(*bytecode = malloc(4))) abort(); |
1257 | ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 }; | |
df39de8d | 1258 | return 4; |
aba5acdf SH |
1259 | } |
1260 | case SSF_DCOND: | |
1261 | case SSF_SCOND: | |
1262 | { | |
acd1e437 | 1263 | struct aafilter *a = (void *)f->pred; |
aba5acdf SH |
1264 | struct aafilter *b; |
1265 | char *ptr; | |
351efcde | 1266 | int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND); |
aba5acdf SH |
1267 | int len = 0; |
1268 | ||
acd1e437 | 1269 | for (b = a; b; b = b->next) { |
351efcde | 1270 | len += 4 + sizeof(struct inet_diag_hostcond); |
aba5acdf SH |
1271 | if (a->addr.family == AF_INET6) |
1272 | len += 16; | |
1273 | else | |
1274 | len += 4; | |
1275 | if (b->next) | |
1276 | len += 4; | |
1277 | } | |
1278 | if (!(ptr = malloc(len))) abort(); | |
1279 | *bytecode = ptr; | |
acd1e437 | 1280 | for (b = a; b; b = b->next) { |
351efcde | 1281 | struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr; |
aba5acdf | 1282 | int alen = (a->addr.family == AF_INET6 ? 16 : 4); |
351efcde | 1283 | int oplen = alen + 4 + sizeof(struct inet_diag_hostcond); |
acd1e437 | 1284 | struct inet_diag_hostcond *cond = (struct inet_diag_hostcond *)(ptr+4); |
aba5acdf | 1285 | |
351efcde | 1286 | *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 }; |
aba5acdf SH |
1287 | cond->family = a->addr.family; |
1288 | cond->port = a->port; | |
1289 | cond->prefix_len = a->addr.bitlen; | |
1290 | memcpy(cond->addr, a->addr.data, alen); | |
1291 | ptr += oplen; | |
1292 | if (b->next) { | |
351efcde SH |
1293 | op = (struct inet_diag_bc_op *)ptr; |
1294 | *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)}; | |
aba5acdf SH |
1295 | ptr += 4; |
1296 | } | |
1297 | } | |
1298 | return ptr - *bytecode; | |
1299 | } | |
1300 | case SSF_D_GE: | |
1301 | { | |
acd1e437 SH |
1302 | struct aafilter *x = (void *)f->pred; |
1303 | ||
1304 | if (!(*bytecode = malloc(8))) abort(); | |
1305 | ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 }; | |
1306 | ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
1307 | return 8; |
1308 | } | |
1309 | case SSF_D_LE: | |
1310 | { | |
acd1e437 SH |
1311 | struct aafilter *x = (void *)f->pred; |
1312 | ||
1313 | if (!(*bytecode = malloc(8))) abort(); | |
1314 | ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 }; | |
1315 | ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
1316 | return 8; |
1317 | } | |
1318 | case SSF_S_GE: | |
1319 | { | |
acd1e437 SH |
1320 | struct aafilter *x = (void *)f->pred; |
1321 | ||
1322 | if (!(*bytecode = malloc(8))) abort(); | |
1323 | ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 }; | |
1324 | ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
1325 | return 8; |
1326 | } | |
1327 | case SSF_S_LE: | |
1328 | { | |
acd1e437 SH |
1329 | struct aafilter *x = (void *)f->pred; |
1330 | ||
1331 | if (!(*bytecode = malloc(8))) abort(); | |
1332 | ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 }; | |
1333 | ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
aba5acdf SH |
1334 | return 8; |
1335 | } | |
1336 | ||
1337 | case SSF_AND: | |
1338 | { | |
376fb868 | 1339 | char *a1 = NULL, *a2 = NULL, *a; |
2a4fa1c3 | 1340 | int l1, l2; |
acd1e437 | 1341 | |
aba5acdf SH |
1342 | l1 = ssfilter_bytecompile(f->pred, &a1); |
1343 | l2 = ssfilter_bytecompile(f->post, &a2); | |
376fb868 DA |
1344 | if (!l1 || !l2) { |
1345 | free(a1); | |
1346 | free(a2); | |
1347 | return 0; | |
1348 | } | |
aba5acdf SH |
1349 | if (!(a = malloc(l1+l2))) abort(); |
1350 | memcpy(a, a1, l1); | |
1351 | memcpy(a+l1, a2, l2); | |
1352 | free(a1); free(a2); | |
1353 | ssfilter_patch(a, l1, l2); | |
1354 | *bytecode = a; | |
1355 | return l1+l2; | |
1356 | } | |
1357 | case SSF_OR: | |
1358 | { | |
376fb868 | 1359 | char *a1 = NULL, *a2 = NULL, *a; |
2a4fa1c3 | 1360 | int l1, l2; |
acd1e437 | 1361 | |
aba5acdf SH |
1362 | l1 = ssfilter_bytecompile(f->pred, &a1); |
1363 | l2 = ssfilter_bytecompile(f->post, &a2); | |
376fb868 DA |
1364 | if (!l1 || !l2) { |
1365 | free(a1); | |
1366 | free(a2); | |
1367 | return 0; | |
1368 | } | |
aba5acdf SH |
1369 | if (!(a = malloc(l1+l2+4))) abort(); |
1370 | memcpy(a, a1, l1); | |
1371 | memcpy(a+l1+4, a2, l2); | |
1372 | free(a1); free(a2); | |
acd1e437 | 1373 | *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 }; |
aba5acdf SH |
1374 | *bytecode = a; |
1375 | return l1+l2+4; | |
1376 | } | |
1377 | case SSF_NOT: | |
1378 | { | |
376fb868 | 1379 | char *a1 = NULL, *a; |
2a4fa1c3 | 1380 | int l1; |
acd1e437 | 1381 | |
aba5acdf | 1382 | l1 = ssfilter_bytecompile(f->pred, &a1); |
376fb868 DA |
1383 | if (!l1) { |
1384 | free(a1); | |
1385 | return 0; | |
1386 | } | |
aba5acdf SH |
1387 | if (!(a = malloc(l1+4))) abort(); |
1388 | memcpy(a, a1, l1); | |
1389 | free(a1); | |
acd1e437 | 1390 | *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 }; |
aba5acdf SH |
1391 | *bytecode = a; |
1392 | return l1+4; | |
2d293212 DA |
1393 | } |
1394 | case SSF_DEVCOND: | |
1395 | { | |
1396 | /* bytecompile for SSF_DEVCOND not supported yet */ | |
1397 | return 0; | |
ec75249b LC |
1398 | } |
1399 | case SSF_MARKMASK: | |
1400 | { | |
1401 | struct aafilter *a = (void *)f->pred; | |
1402 | struct instr { | |
1403 | struct inet_diag_bc_op op; | |
1404 | struct inet_diag_markcond cond; | |
1405 | }; | |
1406 | int inslen = sizeof(struct instr); | |
1407 | ||
1408 | if (!(*bytecode = malloc(inslen))) abort(); | |
1409 | ((struct instr *)*bytecode)[0] = (struct instr) { | |
1410 | { INET_DIAG_BC_MARK_COND, inslen, inslen + 4 }, | |
1411 | { a->mark, a->mask}, | |
1412 | }; | |
1413 | ||
1414 | return inslen; | |
aba5acdf SH |
1415 | } |
1416 | default: | |
1417 | abort(); | |
1418 | } | |
1419 | } | |
1420 | ||
b4b0b7d5 | 1421 | static int remember_he(struct aafilter *a, struct hostent *he) |
aba5acdf | 1422 | { |
ae665a52 | 1423 | char **ptr = he->h_addr_list; |
aba5acdf SH |
1424 | int cnt = 0; |
1425 | int len; | |
1426 | ||
1427 | if (he->h_addrtype == AF_INET) | |
1428 | len = 4; | |
1429 | else if (he->h_addrtype == AF_INET6) | |
1430 | len = 16; | |
1431 | else | |
1432 | return 0; | |
1433 | ||
1434 | while (*ptr) { | |
1435 | struct aafilter *b = a; | |
acd1e437 | 1436 | |
aba5acdf SH |
1437 | if (a->addr.bitlen) { |
1438 | if ((b = malloc(sizeof(*b))) == NULL) | |
1439 | return cnt; | |
1440 | *b = *a; | |
aba5acdf SH |
1441 | a->next = b; |
1442 | } | |
1443 | memcpy(b->addr.data, *ptr, len); | |
1444 | b->addr.bytelen = len; | |
1445 | b->addr.bitlen = len*8; | |
1446 | b->addr.family = he->h_addrtype; | |
1447 | ptr++; | |
1448 | cnt++; | |
1449 | } | |
1450 | return cnt; | |
1451 | } | |
1452 | ||
b4b0b7d5 | 1453 | static int get_dns_host(struct aafilter *a, const char *addr, int fam) |
aba5acdf SH |
1454 | { |
1455 | static int notfirst; | |
1456 | int cnt = 0; | |
1457 | struct hostent *he; | |
1458 | ||
1459 | a->addr.bitlen = 0; | |
1460 | if (!notfirst) { | |
1461 | sethostent(1); | |
1462 | notfirst = 1; | |
1463 | } | |
1464 | he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam); | |
1465 | if (he) | |
1466 | cnt = remember_he(a, he); | |
1467 | if (fam == AF_UNSPEC) { | |
1468 | he = gethostbyname2(addr, AF_INET6); | |
1469 | if (he) | |
1470 | cnt += remember_he(a, he); | |
1471 | } | |
1472 | return !cnt; | |
1473 | } | |
1474 | ||
acd1e437 | 1475 | static int xll_initted; |
aba5acdf | 1476 | |
b4b0b7d5 | 1477 | static void xll_init(void) |
aba5acdf SH |
1478 | { |
1479 | struct rtnl_handle rth; | |
acd1e437 | 1480 | |
d2468da0 SH |
1481 | if (rtnl_open(&rth, 0) < 0) |
1482 | exit(1); | |
1483 | ||
aba5acdf SH |
1484 | ll_init_map(&rth); |
1485 | rtnl_close(&rth); | |
1486 | xll_initted = 1; | |
1487 | } | |
1488 | ||
b4b0b7d5 | 1489 | static const char *xll_index_to_name(int index) |
aba5acdf SH |
1490 | { |
1491 | if (!xll_initted) | |
1492 | xll_init(); | |
1493 | return ll_index_to_name(index); | |
1494 | } | |
1495 | ||
b4b0b7d5 | 1496 | static int xll_name_to_index(const char *dev) |
aba5acdf SH |
1497 | { |
1498 | if (!xll_initted) | |
1499 | xll_init(); | |
1500 | return ll_name_to_index(dev); | |
1501 | } | |
1502 | ||
2d293212 DA |
1503 | void *parse_devcond(char *name) |
1504 | { | |
1505 | struct aafilter a = { .iface = 0 }; | |
1506 | struct aafilter *res; | |
1507 | ||
1508 | a.iface = xll_name_to_index(name); | |
1509 | if (a.iface == 0) { | |
1510 | char *end; | |
930d3f28 | 1511 | unsigned long n; |
2d293212 | 1512 | |
930d3f28 DA |
1513 | n = strtoul(name, &end, 0); |
1514 | if (!end || end == name || *end || n > UINT_MAX) | |
2d293212 | 1515 | return NULL; |
930d3f28 DA |
1516 | |
1517 | a.iface = n; | |
2d293212 DA |
1518 | } |
1519 | ||
1520 | res = malloc(sizeof(*res)); | |
1521 | *res = a; | |
1522 | ||
1523 | return res; | |
1524 | } | |
1525 | ||
7871f7db | 1526 | void *parse_hostcond(char *addr, bool is_port) |
aba5acdf SH |
1527 | { |
1528 | char *port = NULL; | |
1527a17e | 1529 | struct aafilter a = { .port = -1 }; |
aba5acdf | 1530 | struct aafilter *res; |
1527a17e | 1531 | int fam = preferred_family; |
9db7bf15 | 1532 | struct filter *f = ¤t_filter; |
aba5acdf | 1533 | |
1527a17e | 1534 | if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) { |
aba5acdf | 1535 | char *p; |
acd1e437 | 1536 | |
aba5acdf SH |
1537 | a.addr.family = AF_UNIX; |
1538 | if (strncmp(addr, "unix:", 5) == 0) | |
acd1e437 | 1539 | addr += 5; |
aba5acdf SH |
1540 | p = strdup(addr); |
1541 | a.addr.bitlen = 8*strlen(p); | |
99bb68ff | 1542 | memcpy(a.addr.data, &p, sizeof(p)); |
9db7bf15 | 1543 | fam = AF_UNIX; |
aba5acdf SH |
1544 | goto out; |
1545 | } | |
1546 | ||
1527a17e | 1547 | if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) { |
aba5acdf SH |
1548 | a.addr.family = AF_PACKET; |
1549 | a.addr.bitlen = 0; | |
1550 | if (strncmp(addr, "link:", 5) == 0) | |
acd1e437 | 1551 | addr += 5; |
aba5acdf SH |
1552 | port = strchr(addr, ':'); |
1553 | if (port) { | |
1554 | *port = 0; | |
1555 | if (port[1] && strcmp(port+1, "*")) { | |
1556 | if (get_integer(&a.port, port+1, 0)) { | |
1557 | if ((a.port = xll_name_to_index(port+1)) <= 0) | |
1558 | return NULL; | |
1559 | } | |
1560 | } | |
1561 | } | |
1562 | if (addr[0] && strcmp(addr, "*")) { | |
1563 | unsigned short tmp; | |
acd1e437 | 1564 | |
aba5acdf SH |
1565 | a.addr.bitlen = 32; |
1566 | if (ll_proto_a2n(&tmp, addr)) | |
1567 | return NULL; | |
1568 | a.addr.data[0] = ntohs(tmp); | |
1569 | } | |
9db7bf15 | 1570 | fam = AF_PACKET; |
aba5acdf SH |
1571 | goto out; |
1572 | } | |
1573 | ||
1527a17e | 1574 | if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) { |
aba5acdf SH |
1575 | a.addr.family = AF_NETLINK; |
1576 | a.addr.bitlen = 0; | |
1577 | if (strncmp(addr, "netlink:", 8) == 0) | |
acd1e437 | 1578 | addr += 8; |
aba5acdf SH |
1579 | port = strchr(addr, ':'); |
1580 | if (port) { | |
1581 | *port = 0; | |
1582 | if (port[1] && strcmp(port+1, "*")) { | |
1583 | if (get_integer(&a.port, port+1, 0)) { | |
1584 | if (strcmp(port+1, "kernel") == 0) | |
1585 | a.port = 0; | |
1586 | else | |
1587 | return NULL; | |
1588 | } | |
1589 | } | |
1590 | } | |
1591 | if (addr[0] && strcmp(addr, "*")) { | |
1592 | a.addr.bitlen = 32; | |
b00daf6a | 1593 | if (nl_proto_a2n(&a.addr.data[0], addr) == -1) |
1594 | return NULL; | |
aba5acdf | 1595 | } |
9db7bf15 | 1596 | fam = AF_NETLINK; |
aba5acdf SH |
1597 | goto out; |
1598 | } | |
1599 | ||
1527a17e | 1600 | if (fam == AF_INET || !strncmp(addr, "inet:", 5)) { |
aba5acdf | 1601 | fam = AF_INET; |
1527a17e VK |
1602 | if (!strncmp(addr, "inet:", 5)) |
1603 | addr += 5; | |
1604 | } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) { | |
aba5acdf | 1605 | fam = AF_INET6; |
1527a17e VK |
1606 | if (!strncmp(addr, "inet6:", 6)) |
1607 | addr += 6; | |
aba5acdf SH |
1608 | } |
1609 | ||
1610 | /* URL-like literal [] */ | |
1611 | if (addr[0] == '[') { | |
1612 | addr++; | |
1613 | if ((port = strchr(addr, ']')) == NULL) | |
1614 | return NULL; | |
1615 | *port++ = 0; | |
1616 | } else if (addr[0] == '*') { | |
1617 | port = addr+1; | |
1618 | } else { | |
1619 | port = strrchr(strchr(addr, '/') ? : addr, ':'); | |
1620 | } | |
7871f7db VK |
1621 | |
1622 | if (is_port) | |
1623 | port = addr; | |
1624 | ||
aba5acdf | 1625 | if (port && *port) { |
7871f7db VK |
1626 | if (*port == ':') |
1627 | *port++ = 0; | |
1628 | ||
aba5acdf SH |
1629 | if (*port && *port != '*') { |
1630 | if (get_integer(&a.port, port, 0)) { | |
1631 | struct servent *se1 = NULL; | |
1632 | struct servent *se2 = NULL; | |
acd1e437 | 1633 | |
aba5acdf SH |
1634 | if (current_filter.dbs&(1<<UDP_DB)) |
1635 | se1 = getservbyname(port, UDP_PROTO); | |
1636 | if (current_filter.dbs&(1<<TCP_DB)) | |
1637 | se2 = getservbyname(port, TCP_PROTO); | |
1638 | if (se1 && se2 && se1->s_port != se2->s_port) { | |
1639 | fprintf(stderr, "Error: ambiguous port \"%s\".\n", port); | |
1640 | return NULL; | |
1641 | } | |
1642 | if (!se1) | |
1643 | se1 = se2; | |
1644 | if (se1) { | |
1645 | a.port = ntohs(se1->s_port); | |
1646 | } else { | |
1647 | struct scache *s; | |
acd1e437 | 1648 | |
aba5acdf SH |
1649 | for (s = rlist; s; s = s->next) { |
1650 | if ((s->proto == UDP_PROTO && | |
1651 | (current_filter.dbs&(1<<UDP_DB))) || | |
1652 | (s->proto == TCP_PROTO && | |
1653 | (current_filter.dbs&(1<<TCP_DB)))) { | |
1654 | if (s->name && strcmp(s->name, port) == 0) { | |
1655 | if (a.port > 0 && a.port != s->port) { | |
1656 | fprintf(stderr, "Error: ambiguous port \"%s\".\n", port); | |
1657 | return NULL; | |
1658 | } | |
1659 | a.port = s->port; | |
1660 | } | |
1661 | } | |
1662 | } | |
1663 | if (a.port <= 0) { | |
1664 | fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port); | |
1665 | return NULL; | |
1666 | } | |
1667 | } | |
1668 | } | |
1669 | } | |
1670 | } | |
44448a90 | 1671 | if (!is_port && *addr && *addr != '*') { |
aba5acdf SH |
1672 | if (get_prefix_1(&a.addr, addr, fam)) { |
1673 | if (get_dns_host(&a, addr, fam)) { | |
1674 | fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr); | |
1675 | return NULL; | |
1676 | } | |
1677 | } | |
1678 | } | |
1679 | ||
9db7bf15 | 1680 | out: |
1527a17e | 1681 | if (fam != AF_UNSPEC) { |
e56a959e | 1682 | int states = f->states; |
1527a17e | 1683 | f->families = 0; |
9db7bf15 | 1684 | filter_af_set(f, fam); |
e56a959e | 1685 | filter_states_set(f, states); |
1527a17e | 1686 | } |
9db7bf15 | 1687 | |
aba5acdf SH |
1688 | res = malloc(sizeof(*res)); |
1689 | if (res) | |
1690 | memcpy(res, &a, sizeof(a)); | |
1691 | return res; | |
1692 | } | |
1693 | ||
ec75249b LC |
1694 | void *parse_markmask(const char *markmask) |
1695 | { | |
1696 | struct aafilter a, *res; | |
1697 | ||
1698 | if (strchr(markmask, '/')) { | |
1699 | if (sscanf(markmask, "%i/%i", &a.mark, &a.mask) != 2) | |
1700 | return NULL; | |
1701 | } else { | |
1702 | a.mask = 0xffffffff; | |
1703 | if (sscanf(markmask, "%i", &a.mark) != 1) | |
1704 | return NULL; | |
1705 | } | |
1706 | ||
1707 | res = malloc(sizeof(*res)); | |
1708 | if (res) | |
1709 | memcpy(res, &a, sizeof(a)); | |
1710 | return res; | |
1711 | } | |
1712 | ||
5f27ac1d | 1713 | static void proc_ctx_print(struct sockstat *s) |
8250bc9f | 1714 | { |
5f27ac1d | 1715 | char *buf; |
8250bc9f | 1716 | |
8250bc9f VK |
1717 | if (show_proc_ctx || show_sock_ctx) { |
1718 | if (find_entry(s->ino, &buf, | |
1719 | (show_proc_ctx & show_sock_ctx) ? | |
1720 | PROC_SOCK_CTX : PROC_CTX) > 0) { | |
1721 | printf(" users:(%s)", buf); | |
1722 | free(buf); | |
1723 | } | |
1724 | } else if (show_users) { | |
1725 | if (find_entry(s->ino, &buf, USERS) > 0) { | |
1726 | printf(" users:(%s)", buf); | |
1727 | free(buf); | |
1728 | } | |
1729 | } | |
1730 | } | |
1731 | ||
5f27ac1d PS |
1732 | static void inet_stats_print(struct sockstat *s) |
1733 | { | |
1734 | sock_state_print(s); | |
1735 | ||
1736 | inet_addr_print(&s->local, s->lport, s->iface); | |
1737 | inet_addr_print(&s->remote, s->rport, 0); | |
1738 | ||
1739 | proc_ctx_print(s); | |
1740 | } | |
1741 | ||
055840f2 | 1742 | static int proc_parse_inet_addr(char *loc, char *rem, int family, struct |
acd1e437 | 1743 | sockstat * s) |
8250bc9f VK |
1744 | { |
1745 | s->local.family = s->remote.family = family; | |
1746 | if (family == AF_INET) { | |
acd1e437 SH |
1747 | sscanf(loc, "%x:%x", s->local.data, (unsigned *)&s->lport); |
1748 | sscanf(rem, "%x:%x", s->remote.data, (unsigned *)&s->rport); | |
8250bc9f VK |
1749 | s->local.bytelen = s->remote.bytelen = 4; |
1750 | return 0; | |
1751 | } else { | |
1752 | sscanf(loc, "%08x%08x%08x%08x:%x", | |
1753 | s->local.data, | |
1754 | s->local.data + 1, | |
1755 | s->local.data + 2, | |
1756 | s->local.data + 3, | |
1757 | &s->lport); | |
1758 | sscanf(rem, "%08x%08x%08x%08x:%x", | |
1759 | s->remote.data, | |
1760 | s->remote.data + 1, | |
1761 | s->remote.data + 2, | |
1762 | s->remote.data + 3, | |
1763 | &s->rport); | |
1764 | s->local.bytelen = s->remote.bytelen = 16; | |
1765 | return 0; | |
1766 | } | |
1767 | return -1; | |
1768 | } | |
1769 | ||
1770 | static int proc_inet_split_line(char *line, char **loc, char **rem, char **data) | |
aba5acdf | 1771 | { |
aba5acdf | 1772 | char *p; |
ae665a52 | 1773 | |
aba5acdf SH |
1774 | if ((p = strchr(line, ':')) == NULL) |
1775 | return -1; | |
ae665a52 | 1776 | |
8250bc9f VK |
1777 | *loc = p+2; |
1778 | if ((p = strchr(*loc, ':')) == NULL) | |
aba5acdf | 1779 | return -1; |
ae665a52 | 1780 | |
8250bc9f VK |
1781 | p[5] = 0; |
1782 | *rem = p+6; | |
1783 | if ((p = strchr(*rem, ':')) == NULL) | |
aba5acdf | 1784 | return -1; |
8250bc9f | 1785 | |
aba5acdf | 1786 | p[5] = 0; |
8250bc9f VK |
1787 | *data = p+6; |
1788 | return 0; | |
1789 | } | |
ae665a52 | 1790 | |
8250bc9f VK |
1791 | static char *sprint_bw(char *buf, double bw) |
1792 | { | |
1793 | if (bw > 1000000.) | |
acd1e437 | 1794 | sprintf(buf, "%.1fM", bw / 1000000.); |
8250bc9f | 1795 | else if (bw > 1000.) |
acd1e437 | 1796 | sprintf(buf, "%.1fK", bw / 1000.); |
8250bc9f VK |
1797 | else |
1798 | sprintf(buf, "%g", bw); | |
aba5acdf | 1799 | |
8250bc9f VK |
1800 | return buf; |
1801 | } | |
ae665a52 | 1802 | |
f89d46ad PS |
1803 | static void sctp_stats_print(struct sctp_info *s) |
1804 | { | |
1805 | if (s->sctpi_tag) | |
1806 | printf(" tag:%x", s->sctpi_tag); | |
1807 | if (s->sctpi_state) | |
1808 | printf(" state:%s", sctp_sstate_name[s->sctpi_state]); | |
1809 | if (s->sctpi_rwnd) | |
1810 | printf(" rwnd:%d", s->sctpi_rwnd); | |
1811 | if (s->sctpi_unackdata) | |
1812 | printf(" unackdata:%d", s->sctpi_unackdata); | |
1813 | if (s->sctpi_penddata) | |
1814 | printf(" penddata:%d", s->sctpi_penddata); | |
1815 | if (s->sctpi_instrms) | |
1816 | printf(" instrms:%d", s->sctpi_instrms); | |
1817 | if (s->sctpi_outstrms) | |
1818 | printf(" outstrms:%d", s->sctpi_outstrms); | |
1819 | if (s->sctpi_inqueue) | |
1820 | printf(" inqueue:%d", s->sctpi_inqueue); | |
1821 | if (s->sctpi_outqueue) | |
1822 | printf(" outqueue:%d", s->sctpi_outqueue); | |
1823 | if (s->sctpi_overall_error) | |
1824 | printf(" overerr:%d", s->sctpi_overall_error); | |
1825 | if (s->sctpi_max_burst) | |
1826 | printf(" maxburst:%d", s->sctpi_max_burst); | |
1827 | if (s->sctpi_maxseg) | |
1828 | printf(" maxseg:%d", s->sctpi_maxseg); | |
1829 | if (s->sctpi_peer_rwnd) | |
1830 | printf(" prwnd:%d", s->sctpi_peer_rwnd); | |
1831 | if (s->sctpi_peer_tag) | |
1832 | printf(" ptag:%x", s->sctpi_peer_tag); | |
1833 | if (s->sctpi_peer_capable) | |
1834 | printf(" pcapable:%d", s->sctpi_peer_capable); | |
1835 | if (s->sctpi_peer_sack) | |
1836 | printf(" psack:%d", s->sctpi_peer_sack); | |
1837 | if (s->sctpi_s_autoclose) | |
1838 | printf(" autoclose:%d", s->sctpi_s_autoclose); | |
1839 | if (s->sctpi_s_adaptation_ind) | |
1840 | printf(" adapind:%d", s->sctpi_s_adaptation_ind); | |
1841 | if (s->sctpi_s_pd_point) | |
1842 | printf(" pdpoint:%d", s->sctpi_s_pd_point); | |
1843 | if (s->sctpi_s_nodelay) | |
1844 | printf(" nodealy:%d", s->sctpi_s_nodelay); | |
1845 | if (s->sctpi_s_disable_fragments) | |
1846 | printf(" nofrag:%d", s->sctpi_s_disable_fragments); | |
1847 | if (s->sctpi_s_v4mapped) | |
1848 | printf(" v4mapped:%d", s->sctpi_s_v4mapped); | |
1849 | if (s->sctpi_s_frag_interleave) | |
1850 | printf(" fraginl:%d", s->sctpi_s_frag_interleave); | |
1851 | } | |
1852 | ||
8250bc9f VK |
1853 | static void tcp_stats_print(struct tcpstat *s) |
1854 | { | |
1855 | char b1[64]; | |
1856 | ||
1857 | if (s->has_ts_opt) | |
1858 | printf(" ts"); | |
1859 | if (s->has_sack_opt) | |
1860 | printf(" sack"); | |
1861 | if (s->has_ecn_opt) | |
1862 | printf(" ecn"); | |
1863 | if (s->has_ecnseen_opt) | |
1864 | printf(" ecnseen"); | |
1865 | if (s->has_fastopen_opt) | |
1866 | printf(" fastopen"); | |
d2055ea5 | 1867 | if (s->cong_alg[0]) |
8250bc9f VK |
1868 | printf(" %s", s->cong_alg); |
1869 | if (s->has_wscale_opt) | |
1870 | printf(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale); | |
1871 | if (s->rto) | |
1872 | printf(" rto:%g", s->rto); | |
1873 | if (s->backoff) | |
1874 | printf(" backoff:%u", s->backoff); | |
1875 | if (s->rtt) | |
1876 | printf(" rtt:%g/%g", s->rtt, s->rttvar); | |
1877 | if (s->ato) | |
1878 | printf(" ato:%g", s->ato); | |
1879 | ||
1880 | if (s->qack) | |
1881 | printf(" qack:%d", s->qack); | |
1882 | if (s->qack & 1) | |
1883 | printf(" bidir"); | |
1884 | ||
1885 | if (s->mss) | |
1886 | printf(" mss:%d", s->mss); | |
38e6dbc4 ED |
1887 | if (s->rcv_mss) |
1888 | printf(" rcvmss:%d", s->rcv_mss); | |
1889 | if (s->advmss) | |
1890 | printf(" advmss:%d", s->advmss); | |
3bf5445c | 1891 | if (s->cwnd) |
d1f338b3 | 1892 | printf(" cwnd:%u", s->cwnd); |
8250bc9f VK |
1893 | if (s->ssthresh) |
1894 | printf(" ssthresh:%d", s->ssthresh); | |
1895 | ||
1a4dda71 ED |
1896 | if (s->bytes_acked) |
1897 | printf(" bytes_acked:%llu", s->bytes_acked); | |
1898 | if (s->bytes_received) | |
1899 | printf(" bytes_received:%llu", s->bytes_received); | |
ecb435ea CG |
1900 | if (s->segs_out) |
1901 | printf(" segs_out:%u", s->segs_out); | |
1902 | if (s->segs_in) | |
1903 | printf(" segs_in:%u", s->segs_in); | |
414aeec9 MKL |
1904 | if (s->data_segs_out) |
1905 | printf(" data_segs_out:%u", s->data_segs_out); | |
1906 | if (s->data_segs_in) | |
1907 | printf(" data_segs_in:%u", s->data_segs_in); | |
1a4dda71 | 1908 | |
8250bc9f VK |
1909 | if (s->dctcp && s->dctcp->enabled) { |
1910 | struct dctcpstat *dctcp = s->dctcp; | |
1911 | ||
3bf5445c | 1912 | printf(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)", |
8250bc9f VK |
1913 | dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn, |
1914 | dctcp->ab_tot); | |
1915 | } else if (s->dctcp) { | |
3bf5445c | 1916 | printf(" dctcp:fallback_mode"); |
8250bc9f VK |
1917 | } |
1918 | ||
2f0f9aef NC |
1919 | if (s->bbr_info) { |
1920 | __u64 bw; | |
1921 | ||
1922 | bw = s->bbr_info->bbr_bw_hi; | |
1923 | bw <<= 32; | |
1924 | bw |= s->bbr_info->bbr_bw_lo; | |
1925 | ||
1926 | printf(" bbr:(bw:%sbps,mrtt:%g", | |
1927 | sprint_bw(b1, bw * 8.0), | |
1928 | (double)s->bbr_info->bbr_min_rtt / 1000.0); | |
1929 | if (s->bbr_info->bbr_pacing_gain) | |
1930 | printf(",pacing_gain:%g", | |
1931 | (double)s->bbr_info->bbr_pacing_gain / 256.0); | |
1932 | if (s->bbr_info->bbr_cwnd_gain) | |
1933 | printf(",cwnd_gain:%g", | |
1934 | (double)s->bbr_info->bbr_cwnd_gain / 256.0); | |
1935 | printf(")"); | |
1936 | } | |
1937 | ||
8250bc9f VK |
1938 | if (s->send_bps) |
1939 | printf(" send %sbps", sprint_bw(b1, s->send_bps)); | |
1940 | if (s->lastsnd) | |
1941 | printf(" lastsnd:%u", s->lastsnd); | |
1942 | if (s->lastrcv) | |
1943 | printf(" lastrcv:%u", s->lastrcv); | |
1944 | if (s->lastack) | |
1945 | printf(" lastack:%u", s->lastack); | |
1946 | ||
1947 | if (s->pacing_rate) { | |
1948 | printf(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate)); | |
1949 | if (s->pacing_rate_max) | |
1950 | printf("/%sbps", sprint_bw(b1, | |
1951 | s->pacing_rate_max)); | |
1952 | } | |
1953 | ||
2f579872 NC |
1954 | if (s->delivery_rate) |
1955 | printf(" delivery_rate %sbps", sprint_bw(b1, s->delivery_rate)); | |
1956 | if (s->app_limited) | |
1957 | printf(" app_limited"); | |
1958 | ||
b6c7fc61 YC |
1959 | if (s->busy_time) { |
1960 | printf(" busy:%llums", s->busy_time / 1000); | |
1961 | if (s->rwnd_limited) | |
1962 | printf(" rwnd_limited:%llums(%.1f%%)", | |
1963 | s->rwnd_limited / 1000, | |
1964 | 100.0 * s->rwnd_limited / s->busy_time); | |
1965 | if (s->sndbuf_limited) | |
1966 | printf(" sndbuf_limited:%llums(%.1f%%)", | |
1967 | s->sndbuf_limited / 1000, | |
1968 | 100.0 * s->sndbuf_limited / s->busy_time); | |
1969 | } | |
1970 | ||
8250bc9f VK |
1971 | if (s->unacked) |
1972 | printf(" unacked:%u", s->unacked); | |
1973 | if (s->retrans || s->retrans_total) | |
1974 | printf(" retrans:%u/%u", s->retrans, s->retrans_total); | |
1975 | if (s->lost) | |
1976 | printf(" lost:%u", s->lost); | |
055840f2 | 1977 | if (s->sacked && s->ss.state != SS_LISTEN) |
8250bc9f VK |
1978 | printf(" sacked:%u", s->sacked); |
1979 | if (s->fackets) | |
1980 | printf(" fackets:%u", s->fackets); | |
1981 | if (s->reordering != 3) | |
1982 | printf(" reordering:%d", s->reordering); | |
1983 | if (s->rcv_rtt) | |
1984 | printf(" rcv_rtt:%g", s->rcv_rtt); | |
1985 | if (s->rcv_space) | |
1986 | printf(" rcv_space:%d", s->rcv_space); | |
9e99e495 SH |
1987 | if (s->not_sent) |
1988 | printf(" notsent:%u", s->not_sent); | |
1989 | if (s->min_rtt) | |
1990 | printf(" minrtt:%g", s->min_rtt); | |
8250bc9f VK |
1991 | } |
1992 | ||
055840f2 VK |
1993 | static void tcp_timer_print(struct tcpstat *s) |
1994 | { | |
86dfa1be PS |
1995 | static const char * const tmr_name[] = { |
1996 | "off", | |
1997 | "on", | |
1998 | "keepalive", | |
1999 | "timewait", | |
2000 | "persist", | |
2001 | "unknown" | |
2002 | }; | |
2003 | ||
055840f2 VK |
2004 | if (s->timer) { |
2005 | if (s->timer > 4) | |
2006 | s->timer = 5; | |
2007 | printf(" timer:(%s,%s,%d)", | |
2008 | tmr_name[s->timer], | |
2009 | print_ms_timer(s->timeout), | |
2010 | s->retrans); | |
2011 | } | |
2012 | } | |
2013 | ||
f89d46ad PS |
2014 | static void sctp_timer_print(struct tcpstat *s) |
2015 | { | |
2016 | if (s->timer) | |
2017 | printf(" timer:(T3_RTX,%s,%d)", | |
2018 | print_ms_timer(s->timeout), s->retrans); | |
2019 | } | |
2020 | ||
8250bc9f VK |
2021 | static int tcp_show_line(char *line, const struct filter *f, int family) |
2022 | { | |
2023 | int rto = 0, ato = 0; | |
2024 | struct tcpstat s = {}; | |
2025 | char *loc, *rem, *data; | |
2026 | char opt[256]; | |
2027 | int n; | |
2028 | int hz = get_user_hz(); | |
2029 | ||
2030 | if (proc_inet_split_line(line, &loc, &rem, &data)) | |
2031 | return -1; | |
2032 | ||
2033 | int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0'); | |
acd1e437 | 2034 | |
8250bc9f VK |
2035 | if (!(f->states & (1 << state))) |
2036 | return 0; | |
2037 | ||
055840f2 | 2038 | proc_parse_inet_addr(loc, rem, family, &s.ss); |
ae665a52 | 2039 | |
055840f2 | 2040 | if (f->f && run_ssfilter(f->f, &s.ss) == 0) |
aba5acdf | 2041 | return 0; |
ae665a52 | 2042 | |
aba5acdf | 2043 | opt[0] = 0; |
d1f338b3 | 2044 | n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n", |
055840f2 VK |
2045 | &s.ss.state, &s.ss.wq, &s.ss.rq, |
2046 | &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes, | |
2047 | &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd, | |
2048 | &s.ssthresh, opt); | |
ae665a52 | 2049 | |
aba5acdf SH |
2050 | if (n < 17) |
2051 | opt[0] = 0; | |
ae665a52 | 2052 | |
aba5acdf | 2053 | if (n < 12) { |
8250bc9f | 2054 | rto = 0; |
aba5acdf SH |
2055 | s.cwnd = 2; |
2056 | s.ssthresh = -1; | |
8250bc9f | 2057 | ato = s.qack = 0; |
aba5acdf | 2058 | } |
ae665a52 | 2059 | |
8250bc9f VK |
2060 | s.retrans = s.timer != 1 ? s.probes : s.retrans; |
2061 | s.timeout = (s.timeout * 1000 + hz - 1) / hz; | |
2062 | s.ato = (double)ato / hz; | |
2063 | s.qack /= 2; | |
2064 | s.rto = (double)rto; | |
2065 | s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh; | |
2066 | s.rto = s.rto != 3 * hz ? s.rto / hz : 0; | |
be7e4d20 | 2067 | s.ss.type = IPPROTO_TCP; |
ae665a52 | 2068 | |
be7e4d20 | 2069 | inet_stats_print(&s.ss); |
055840f2 VK |
2070 | |
2071 | if (show_options) | |
2072 | tcp_timer_print(&s); | |
116ac927 | 2073 | |
aba5acdf | 2074 | if (show_details) { |
f1b39e1b | 2075 | sock_details_print(&s.ss); |
aba5acdf SH |
2076 | if (opt[0]) |
2077 | printf(" opt:\"%s\"", opt); | |
2078 | } | |
aba5acdf | 2079 | |
8250bc9f VK |
2080 | if (show_tcpinfo) |
2081 | tcp_stats_print(&s); | |
2082 | ||
2083 | printf("\n"); | |
aba5acdf SH |
2084 | return 0; |
2085 | } | |
2086 | ||
ab01dbbb SH |
2087 | static int generic_record_read(FILE *fp, |
2088 | int (*worker)(char*, const struct filter *, int), | |
2089 | const struct filter *f, int fam) | |
aba5acdf | 2090 | { |
ab01dbbb | 2091 | char line[256]; |
aba5acdf | 2092 | |
ab01dbbb SH |
2093 | /* skip header */ |
2094 | if (fgets(line, sizeof(line), fp) == NULL) | |
aba5acdf | 2095 | goto outerr; |
ab01dbbb SH |
2096 | |
2097 | while (fgets(line, sizeof(line), fp) != NULL) { | |
2098 | int n = strlen(line); | |
acd1e437 | 2099 | |
ab01dbbb SH |
2100 | if (n == 0 || line[n-1] != '\n') { |
2101 | errno = -EINVAL; | |
2102 | return -1; | |
aba5acdf | 2103 | } |
ab01dbbb | 2104 | line[n-1] = 0; |
aba5acdf | 2105 | |
ab01dbbb SH |
2106 | if (worker(line, f, fam) < 0) |
2107 | return 0; | |
2108 | } | |
aba5acdf | 2109 | outerr: |
ab01dbbb SH |
2110 | |
2111 | return ferror(fp) ? -1 : 0; | |
aba5acdf | 2112 | } |
ae665a52 | 2113 | |
51ff9f24 HFS |
2114 | static void print_skmeminfo(struct rtattr *tb[], int attrtype) |
2115 | { | |
2116 | const __u32 *skmeminfo; | |
db08bdb8 VK |
2117 | |
2118 | if (!tb[attrtype]) { | |
2119 | if (attrtype == INET_DIAG_SKMEMINFO) { | |
2120 | if (!tb[INET_DIAG_MEMINFO]) | |
2121 | return; | |
2122 | ||
2123 | const struct inet_diag_meminfo *minfo = | |
2124 | RTA_DATA(tb[INET_DIAG_MEMINFO]); | |
2125 | ||
2126 | printf(" mem:(r%u,w%u,f%u,t%u)", | |
2127 | minfo->idiag_rmem, | |
2128 | minfo->idiag_wmem, | |
2129 | minfo->idiag_fmem, | |
2130 | minfo->idiag_tmem); | |
2131 | } | |
51ff9f24 | 2132 | return; |
db08bdb8 VK |
2133 | } |
2134 | ||
51ff9f24 HFS |
2135 | skmeminfo = RTA_DATA(tb[attrtype]); |
2136 | ||
2137 | printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u", | |
2138 | skmeminfo[SK_MEMINFO_RMEM_ALLOC], | |
2139 | skmeminfo[SK_MEMINFO_RCVBUF], | |
2140 | skmeminfo[SK_MEMINFO_WMEM_ALLOC], | |
2141 | skmeminfo[SK_MEMINFO_SNDBUF], | |
2142 | skmeminfo[SK_MEMINFO_FWD_ALLOC], | |
2143 | skmeminfo[SK_MEMINFO_WMEM_QUEUED], | |
2144 | skmeminfo[SK_MEMINFO_OPTMEM]); | |
2145 | ||
2146 | if (RTA_PAYLOAD(tb[attrtype]) >= | |
2147 | (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32)) | |
2148 | printf(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]); | |
2149 | ||
6df9c7a0 ED |
2150 | if (RTA_PAYLOAD(tb[attrtype]) >= |
2151 | (SK_MEMINFO_DROPS + 1) * sizeof(__u32)) | |
2152 | printf(",d%u", skmeminfo[SK_MEMINFO_DROPS]); | |
2153 | ||
51ff9f24 HFS |
2154 | printf(")"); |
2155 | } | |
2156 | ||
8250bc9f VK |
2157 | #define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt)) |
2158 | ||
5b816047 PE |
2159 | static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r, |
2160 | struct rtattr *tb[]) | |
7d105b56 | 2161 | { |
b4b0b7d5 | 2162 | double rtt = 0; |
8250bc9f | 2163 | struct tcpstat s = {}; |
7d105b56 | 2164 | |
055840f2 VK |
2165 | s.ss.state = r->idiag_state; |
2166 | ||
db08bdb8 | 2167 | print_skmeminfo(tb, INET_DIAG_SKMEMINFO); |
7d105b56 | 2168 | |
351efcde | 2169 | if (tb[INET_DIAG_INFO]) { |
05e18118 | 2170 | struct tcp_info *info; |
351efcde | 2171 | int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]); |
05e18118 SH |
2172 | |
2173 | /* workaround for older kernels with less fields */ | |
2174 | if (len < sizeof(*info)) { | |
2175 | info = alloca(sizeof(*info)); | |
351efcde | 2176 | memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len); |
656e8fdd | 2177 | memset((char *)info + len, 0, sizeof(*info) - len); |
05e18118 | 2178 | } else |
351efcde | 2179 | info = RTA_DATA(tb[INET_DIAG_INFO]); |
05e18118 | 2180 | |
b4b0b7d5 | 2181 | if (show_options) { |
8250bc9f VK |
2182 | s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS); |
2183 | s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK); | |
2184 | s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN); | |
2185 | s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN); | |
2186 | s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA); | |
b4b0b7d5 | 2187 | } |
52d5ac3f | 2188 | |
d2055ea5 ED |
2189 | if (tb[INET_DIAG_CONG]) |
2190 | strncpy(s.cong_alg, | |
2191 | rta_getattr_str(tb[INET_DIAG_CONG]), | |
2192 | sizeof(s.cong_alg) - 1); | |
8250bc9f VK |
2193 | |
2194 | if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) { | |
2195 | s.has_wscale_opt = true; | |
2196 | s.snd_wscale = info->tcpi_snd_wscale; | |
2197 | s.rcv_wscale = info->tcpi_rcv_wscale; | |
2198 | } | |
ea8fc104 | 2199 | |
7d105b56 | 2200 | if (info->tcpi_rto && info->tcpi_rto != 3000000) |
8250bc9f VK |
2201 | s.rto = (double)info->tcpi_rto / 1000; |
2202 | ||
2203 | s.backoff = info->tcpi_backoff; | |
2204 | s.rtt = (double)info->tcpi_rtt / 1000; | |
2205 | s.rttvar = (double)info->tcpi_rttvar / 1000; | |
11ba90fc | 2206 | s.ato = (double)info->tcpi_ato / 1000; |
8250bc9f | 2207 | s.mss = info->tcpi_snd_mss; |
38e6dbc4 ED |
2208 | s.rcv_mss = info->tcpi_rcv_mss; |
2209 | s.advmss = info->tcpi_advmss; | |
8250bc9f VK |
2210 | s.rcv_space = info->tcpi_rcv_space; |
2211 | s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000; | |
2212 | s.lastsnd = info->tcpi_last_data_sent; | |
2213 | s.lastrcv = info->tcpi_last_data_recv; | |
2214 | s.lastack = info->tcpi_last_ack_recv; | |
2215 | s.unacked = info->tcpi_unacked; | |
2216 | s.retrans = info->tcpi_retrans; | |
2217 | s.retrans_total = info->tcpi_total_retrans; | |
2218 | s.lost = info->tcpi_lost; | |
2219 | s.sacked = info->tcpi_sacked; | |
2220 | s.reordering = info->tcpi_reordering; | |
2221 | s.rcv_space = info->tcpi_rcv_space; | |
2222 | s.cwnd = info->tcpi_snd_cwnd; | |
2223 | ||
7d105b56 | 2224 | if (info->tcpi_snd_ssthresh < 0xFFFF) |
8250bc9f | 2225 | s.ssthresh = info->tcpi_snd_ssthresh; |
52d5ac3f | 2226 | |
b4b0b7d5 | 2227 | rtt = (double) info->tcpi_rtt; |
351efcde | 2228 | if (tb[INET_DIAG_VEGASINFO]) { |
05e18118 | 2229 | const struct tcpvegas_info *vinfo |
351efcde | 2230 | = RTA_DATA(tb[INET_DIAG_VEGASINFO]); |
7d105b56 | 2231 | |
ae665a52 | 2232 | if (vinfo->tcpv_enabled && |
8250bc9f | 2233 | vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff) |
ea8fc104 | 2234 | rtt = vinfo->tcpv_rtt; |
b4b0b7d5 SH |
2235 | } |
2236 | ||
907e1aca | 2237 | if (tb[INET_DIAG_DCTCPINFO]) { |
8250bc9f VK |
2238 | struct dctcpstat *dctcp = malloc(sizeof(struct |
2239 | dctcpstat)); | |
2240 | ||
907e1aca DB |
2241 | const struct tcp_dctcp_info *dinfo |
2242 | = RTA_DATA(tb[INET_DIAG_DCTCPINFO]); | |
2243 | ||
8250bc9f VK |
2244 | dctcp->enabled = !!dinfo->dctcp_enabled; |
2245 | dctcp->ce_state = dinfo->dctcp_ce_state; | |
2246 | dctcp->alpha = dinfo->dctcp_alpha; | |
2247 | dctcp->ab_ecn = dinfo->dctcp_ab_ecn; | |
2248 | dctcp->ab_tot = dinfo->dctcp_ab_tot; | |
2249 | s.dctcp = dctcp; | |
907e1aca DB |
2250 | } |
2251 | ||
2f0f9aef NC |
2252 | if (tb[INET_DIAG_BBRINFO]) { |
2253 | const void *bbr_info = RTA_DATA(tb[INET_DIAG_BBRINFO]); | |
2254 | int len = min(RTA_PAYLOAD(tb[INET_DIAG_BBRINFO]), | |
2255 | sizeof(*s.bbr_info)); | |
2256 | ||
2257 | s.bbr_info = calloc(1, sizeof(*s.bbr_info)); | |
2258 | if (s.bbr_info && bbr_info) | |
2259 | memcpy(s.bbr_info, bbr_info, len); | |
2260 | } | |
2261 | ||
b4b0b7d5 | 2262 | if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) { |
8250bc9f VK |
2263 | s.send_bps = (double) info->tcpi_snd_cwnd * |
2264 | (double)info->tcpi_snd_mss * 8000000. / rtt; | |
7d105b56 | 2265 | } |
b4b0b7d5 | 2266 | |
eb6028b2 | 2267 | if (info->tcpi_pacing_rate && |
8250bc9f VK |
2268 | info->tcpi_pacing_rate != ~0ULL) { |
2269 | s.pacing_rate = info->tcpi_pacing_rate * 8.; | |
eb6028b2 ED |
2270 | |
2271 | if (info->tcpi_max_pacing_rate && | |
8250bc9f VK |
2272 | info->tcpi_max_pacing_rate != ~0ULL) |
2273 | s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.; | |
eb6028b2 | 2274 | } |
1a4dda71 ED |
2275 | s.bytes_acked = info->tcpi_bytes_acked; |
2276 | s.bytes_received = info->tcpi_bytes_received; | |
ecb435ea CG |
2277 | s.segs_out = info->tcpi_segs_out; |
2278 | s.segs_in = info->tcpi_segs_in; | |
414aeec9 MKL |
2279 | s.data_segs_out = info->tcpi_data_segs_out; |
2280 | s.data_segs_in = info->tcpi_data_segs_in; | |
9e99e495 | 2281 | s.not_sent = info->tcpi_notsent_bytes; |
d9ba887e ED |
2282 | if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U) |
2283 | s.min_rtt = (double) info->tcpi_min_rtt / 1000; | |
2f579872 NC |
2284 | s.delivery_rate = info->tcpi_delivery_rate * 8.; |
2285 | s.app_limited = info->tcpi_delivery_rate_app_limited; | |
b6c7fc61 YC |
2286 | s.busy_time = info->tcpi_busy_time; |
2287 | s.rwnd_limited = info->tcpi_rwnd_limited; | |
2288 | s.sndbuf_limited = info->tcpi_sndbuf_limited; | |
8250bc9f | 2289 | tcp_stats_print(&s); |
92de1c2c | 2290 | free(s.dctcp); |
2f0f9aef | 2291 | free(s.bbr_info); |
77a8ca81 | 2292 | } |
77a8ca81 PE |
2293 | } |
2294 | ||
f89d46ad PS |
2295 | static const char *format_host_sa(struct sockaddr_storage *sa) |
2296 | { | |
2297 | union { | |
2298 | struct sockaddr_in sin; | |
2299 | struct sockaddr_in6 sin6; | |
2300 | } *saddr = (void *)sa; | |
2301 | ||
2302 | switch (sa->ss_family) { | |
2303 | case AF_INET: | |
2304 | return format_host(AF_INET, 4, &saddr->sin.sin_addr); | |
2305 | case AF_INET6: | |
2306 | return format_host(AF_INET6, 16, &saddr->sin6.sin6_addr); | |
2307 | default: | |
2308 | return ""; | |
2309 | } | |
2310 | } | |
2311 | ||
2312 | static void sctp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r, | |
2313 | struct rtattr *tb[]) | |
2314 | { | |
2315 | struct sockaddr_storage *sa; | |
2316 | int len; | |
2317 | ||
2318 | print_skmeminfo(tb, INET_DIAG_SKMEMINFO); | |
2319 | ||
2320 | if (tb[INET_DIAG_LOCALS]) { | |
2321 | len = RTA_PAYLOAD(tb[INET_DIAG_LOCALS]); | |
2322 | sa = RTA_DATA(tb[INET_DIAG_LOCALS]); | |
2323 | ||
2324 | printf("locals:%s", format_host_sa(sa)); | |
2325 | for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa)) | |
2326 | printf(",%s", format_host_sa(sa)); | |
2327 | ||
2328 | } | |
2329 | if (tb[INET_DIAG_PEERS]) { | |
2330 | len = RTA_PAYLOAD(tb[INET_DIAG_PEERS]); | |
2331 | sa = RTA_DATA(tb[INET_DIAG_PEERS]); | |
2332 | ||
2333 | printf(" peers:%s", format_host_sa(sa)); | |
2334 | for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa)) | |
2335 | printf(",%s", format_host_sa(sa)); | |
2336 | } | |
2337 | if (tb[INET_DIAG_INFO]) { | |
2338 | struct sctp_info *info; | |
2339 | len = RTA_PAYLOAD(tb[INET_DIAG_INFO]); | |
2340 | ||
2341 | /* workaround for older kernels with less fields */ | |
2342 | if (len < sizeof(*info)) { | |
2343 | info = alloca(sizeof(*info)); | |
2344 | memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len); | |
2345 | memset((char *)info + len, 0, sizeof(*info) - len); | |
2346 | } else | |
2347 | info = RTA_DATA(tb[INET_DIAG_INFO]); | |
2348 | ||
2349 | sctp_stats_print(info); | |
2350 | } | |
2351 | } | |
2352 | ||
82d73ea0 | 2353 | static void parse_diag_msg(struct nlmsghdr *nlh, struct sockstat *s) |
aba5acdf | 2354 | { |
acd1e437 | 2355 | struct rtattr *tb[INET_DIAG_MAX+1]; |
351efcde | 2356 | struct inet_diag_msg *r = NLMSG_DATA(nlh); |
aba5acdf | 2357 | |
acd1e437 | 2358 | parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1), |
5b816047 PE |
2359 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); |
2360 | ||
82d73ea0 DA |
2361 | s->state = r->idiag_state; |
2362 | s->local.family = s->remote.family = r->idiag_family; | |
2363 | s->lport = ntohs(r->id.idiag_sport); | |
2364 | s->rport = ntohs(r->id.idiag_dport); | |
2365 | s->wq = r->idiag_wqueue; | |
2366 | s->rq = r->idiag_rqueue; | |
2367 | s->ino = r->idiag_inode; | |
2368 | s->uid = r->idiag_uid; | |
2369 | s->iface = r->id.idiag_if; | |
2370 | s->sk = cookie_sk_get(&r->id.idiag_cookie[0]); | |
2371 | ||
ec75249b LC |
2372 | s->mark = 0; |
2373 | if (tb[INET_DIAG_MARK]) | |
9f1370c0 | 2374 | s->mark = rta_getattr_u32(tb[INET_DIAG_MARK]); |
41fe6c34 | 2375 | if (tb[INET_DIAG_PROTOCOL]) |
9f1370c0 | 2376 | s->raw_prot = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]); |
41fe6c34 CG |
2377 | else |
2378 | s->raw_prot = 0; | |
ec75249b | 2379 | |
82d73ea0 DA |
2380 | if (s->local.family == AF_INET) |
2381 | s->local.bytelen = s->remote.bytelen = 4; | |
2382 | else | |
2383 | s->local.bytelen = s->remote.bytelen = 16; | |
8250bc9f | 2384 | |
82d73ea0 DA |
2385 | memcpy(s->local.data, r->id.idiag_src, s->local.bytelen); |
2386 | memcpy(s->remote.data, r->id.idiag_dst, s->local.bytelen); | |
2387 | } | |
aba5acdf | 2388 | |
82d73ea0 | 2389 | static int inet_show_sock(struct nlmsghdr *nlh, |
be7e4d20 | 2390 | struct sockstat *s) |
82d73ea0 DA |
2391 | { |
2392 | struct rtattr *tb[INET_DIAG_MAX+1]; | |
2393 | struct inet_diag_msg *r = NLMSG_DATA(nlh); | |
2394 | ||
2395 | parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1), | |
2396 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); | |
aba5acdf | 2397 | |
6885e3bf | 2398 | if (tb[INET_DIAG_PROTOCOL]) |
9f1370c0 | 2399 | s->type = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]); |
6885e3bf | 2400 | |
be7e4d20 | 2401 | inet_stats_print(s); |
116ac927 | 2402 | |
055840f2 VK |
2403 | if (show_options) { |
2404 | struct tcpstat t = {}; | |
2405 | ||
2406 | t.timer = r->idiag_timer; | |
2407 | t.timeout = r->idiag_expires; | |
2408 | t.retrans = r->idiag_retrans; | |
be7e4d20 | 2409 | if (s->type == IPPROTO_SCTP) |
f89d46ad PS |
2410 | sctp_timer_print(&t); |
2411 | else | |
2412 | tcp_timer_print(&t); | |
055840f2 VK |
2413 | } |
2414 | ||
aba5acdf | 2415 | if (show_details) { |
82d73ea0 DA |
2416 | sock_details_print(s); |
2417 | if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY]) { | |
f32dc746 | 2418 | unsigned char v6only; |
acd1e437 | 2419 | |
9f1370c0 | 2420 | v6only = rta_getattr_u8(tb[INET_DIAG_SKV6ONLY]); |
f32dc746 PS |
2421 | printf(" v6only:%u", v6only); |
2422 | } | |
5b816047 PE |
2423 | if (tb[INET_DIAG_SHUTDOWN]) { |
2424 | unsigned char mask; | |
acd1e437 | 2425 | |
9f1370c0 | 2426 | mask = rta_getattr_u8(tb[INET_DIAG_SHUTDOWN]); |
5b816047 PE |
2427 | printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>'); |
2428 | } | |
aba5acdf | 2429 | } |
8250bc9f | 2430 | |
be7e4d20 | 2431 | if (show_mem || (show_tcpinfo && s->type != IPPROTO_UDP)) { |
7d105b56 | 2432 | printf("\n\t"); |
be7e4d20 | 2433 | if (s->type == IPPROTO_SCTP) |
f89d46ad PS |
2434 | sctp_show_info(nlh, r, tb); |
2435 | else | |
2436 | tcp_show_info(nlh, r, tb); | |
aba5acdf | 2437 | } |
f89d46ad | 2438 | sctp_ino = s->ino; |
7d105b56 | 2439 | |
aba5acdf | 2440 | printf("\n"); |
aba5acdf | 2441 | return 0; |
aba5acdf SH |
2442 | } |
2443 | ||
746a695f | 2444 | static int tcpdiag_send(int fd, int protocol, struct filter *f) |
aba5acdf | 2445 | { |
d17b136f | 2446 | struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK }; |
aba5acdf SH |
2447 | struct { |
2448 | struct nlmsghdr nlh; | |
351efcde | 2449 | struct inet_diag_req r; |
d17b136f PS |
2450 | } req = { |
2451 | .nlh.nlmsg_len = sizeof(req), | |
2452 | .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST, | |
2453 | .nlh.nlmsg_seq = MAGIC_SEQ, | |
2454 | .r.idiag_family = AF_INET, | |
2455 | .r.idiag_states = f->states, | |
2456 | }; | |
aba5acdf SH |
2457 | char *bc = NULL; |
2458 | int bclen; | |
2459 | struct msghdr msg; | |
2460 | struct rtattr rta; | |
aba5acdf | 2461 | struct iovec iov[3]; |
376fb868 | 2462 | int iovlen = 1; |
aba5acdf | 2463 | |
346f8ca8 PE |
2464 | if (protocol == IPPROTO_UDP) |
2465 | return -1; | |
2466 | ||
3fe5b534 PE |
2467 | if (protocol == IPPROTO_TCP) |
2468 | req.nlh.nlmsg_type = TCPDIAG_GETSOCK; | |
2469 | else | |
2470 | req.nlh.nlmsg_type = DCCPDIAG_GETSOCK; | |
910b0397 | 2471 | if (show_mem) { |
ae665a52 | 2472 | req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1)); |
910b0397 SW |
2473 | req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1)); |
2474 | } | |
b4b0b7d5 | 2475 | |
7d105b56 | 2476 | if (show_tcpinfo) { |
351efcde SH |
2477 | req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1)); |
2478 | req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1)); | |
2479 | req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1)); | |
7d105b56 | 2480 | } |
aba5acdf | 2481 | |
ae665a52 SH |
2482 | iov[0] = (struct iovec){ |
2483 | .iov_base = &req, | |
2484 | .iov_len = sizeof(req) | |
ea8fc104 | 2485 | }; |
aba5acdf SH |
2486 | if (f->f) { |
2487 | bclen = ssfilter_bytecompile(f->f, &bc); | |
376fb868 DA |
2488 | if (bclen) { |
2489 | rta.rta_type = INET_DIAG_REQ_BYTECODE; | |
2490 | rta.rta_len = RTA_LENGTH(bclen); | |
2491 | iov[1] = (struct iovec){ &rta, sizeof(rta) }; | |
2492 | iov[2] = (struct iovec){ bc, bclen }; | |
2493 | req.nlh.nlmsg_len += RTA_LENGTH(bclen); | |
2494 | iovlen = 3; | |
2495 | } | |
aba5acdf SH |
2496 | } |
2497 | ||
2498 | msg = (struct msghdr) { | |
acd1e437 | 2499 | .msg_name = (void *)&nladdr, |
ea8fc104 | 2500 | .msg_namelen = sizeof(nladdr), |
ae665a52 | 2501 | .msg_iov = iov, |
376fb868 | 2502 | .msg_iovlen = iovlen, |
aba5acdf SH |
2503 | }; |
2504 | ||
930a75f9 ED |
2505 | if (sendmsg(fd, &msg, 0) < 0) { |
2506 | close(fd); | |
aba5acdf | 2507 | return -1; |
930a75f9 | 2508 | } |
aba5acdf | 2509 | |
746a695f PE |
2510 | return 0; |
2511 | } | |
2512 | ||
886d19d6 PE |
2513 | static int sockdiag_send(int family, int fd, int protocol, struct filter *f) |
2514 | { | |
d17b136f | 2515 | struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK }; |
5fb421d4 | 2516 | DIAG_REQUEST(req, struct inet_diag_req_v2 r); |
886d19d6 PE |
2517 | char *bc = NULL; |
2518 | int bclen; | |
2519 | struct msghdr msg; | |
2520 | struct rtattr rta; | |
2521 | struct iovec iov[3]; | |
376fb868 | 2522 | int iovlen = 1; |
886d19d6 PE |
2523 | |
2524 | if (family == PF_UNSPEC) | |
2525 | return tcpdiag_send(fd, protocol, f); | |
2526 | ||
886d19d6 PE |
2527 | memset(&req.r, 0, sizeof(req.r)); |
2528 | req.r.sdiag_family = family; | |
2529 | req.r.sdiag_protocol = protocol; | |
2530 | req.r.idiag_states = f->states; | |
2531 | if (show_mem) { | |
2532 | req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1)); | |
2533 | req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1)); | |
2534 | } | |
2535 | ||
2536 | if (show_tcpinfo) { | |
2537 | req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1)); | |
2538 | req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1)); | |
2539 | req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1)); | |
2540 | } | |
2541 | ||
2542 | iov[0] = (struct iovec){ | |
2543 | .iov_base = &req, | |
2544 | .iov_len = sizeof(req) | |
2545 | }; | |
2546 | if (f->f) { | |
2547 | bclen = ssfilter_bytecompile(f->f, &bc); | |
376fb868 DA |
2548 | if (bclen) { |
2549 | rta.rta_type = INET_DIAG_REQ_BYTECODE; | |
2550 | rta.rta_len = RTA_LENGTH(bclen); | |
2551 | iov[1] = (struct iovec){ &rta, sizeof(rta) }; | |
2552 | iov[2] = (struct iovec){ bc, bclen }; | |
2553 | req.nlh.nlmsg_len += RTA_LENGTH(bclen); | |
2554 | iovlen = 3; | |
2555 | } | |
886d19d6 PE |
2556 | } |
2557 | ||
2558 | msg = (struct msghdr) { | |
acd1e437 | 2559 | .msg_name = (void *)&nladdr, |
886d19d6 PE |
2560 | .msg_namelen = sizeof(nladdr), |
2561 | .msg_iov = iov, | |
376fb868 | 2562 | .msg_iovlen = iovlen, |
886d19d6 PE |
2563 | }; |
2564 | ||
2565 | if (sendmsg(fd, &msg, 0) < 0) { | |
2566 | close(fd); | |
2567 | return -1; | |
2568 | } | |
2569 | ||
2570 | return 0; | |
2571 | } | |
2572 | ||
486ccd99 VK |
2573 | struct inet_diag_arg { |
2574 | struct filter *f; | |
2575 | int protocol; | |
fb2594c1 | 2576 | struct rtnl_handle *rth; |
486ccd99 | 2577 | }; |
aba5acdf | 2578 | |
41fe6c34 | 2579 | static int kill_inet_sock(struct nlmsghdr *h, void *arg, struct sockstat *s) |
fb2594c1 LC |
2580 | { |
2581 | struct inet_diag_msg *d = NLMSG_DATA(h); | |
2582 | struct inet_diag_arg *diag_arg = arg; | |
2583 | struct rtnl_handle *rth = diag_arg->rth; | |
acd1e437 | 2584 | |
fb2594c1 LC |
2585 | DIAG_REQUEST(req, struct inet_diag_req_v2 r); |
2586 | ||
2587 | req.nlh.nlmsg_type = SOCK_DESTROY; | |
2588 | req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK; | |
2589 | req.nlh.nlmsg_seq = ++rth->seq; | |
2590 | req.r.sdiag_family = d->idiag_family; | |
2591 | req.r.sdiag_protocol = diag_arg->protocol; | |
2592 | req.r.id = d->id; | |
2593 | ||
41fe6c34 CG |
2594 | if (diag_arg->protocol == IPPROTO_RAW) { |
2595 | struct inet_diag_req_raw *raw = (void *)&req.r; | |
2596 | ||
2597 | BUILD_BUG_ON(sizeof(req.r) != sizeof(*raw)); | |
2598 | raw->sdiag_raw_protocol = s->raw_prot; | |
2599 | } | |
2600 | ||
fb2594c1 LC |
2601 | return rtnl_talk(rth, &req.nlh, NULL, 0); |
2602 | } | |
2603 | ||
486ccd99 VK |
2604 | static int show_one_inet_sock(const struct sockaddr_nl *addr, |
2605 | struct nlmsghdr *h, void *arg) | |
2606 | { | |
2607 | int err; | |
2608 | struct inet_diag_arg *diag_arg = arg; | |
2609 | struct inet_diag_msg *r = NLMSG_DATA(h); | |
82d73ea0 | 2610 | struct sockstat s = {}; |
aba5acdf | 2611 | |
486ccd99 VK |
2612 | if (!(diag_arg->f->families & (1 << r->idiag_family))) |
2613 | return 0; | |
82d73ea0 DA |
2614 | |
2615 | parse_diag_msg(h, &s); | |
be7e4d20 | 2616 | s.type = diag_arg->protocol; |
82d73ea0 DA |
2617 | |
2618 | if (diag_arg->f->f && run_ssfilter(diag_arg->f->f, &s) == 0) | |
2619 | return 0; | |
2620 | ||
41fe6c34 | 2621 | if (diag_arg->f->kill && kill_inet_sock(h, arg, &s) != 0) { |
fb2594c1 LC |
2622 | if (errno == EOPNOTSUPP || errno == ENOENT) { |
2623 | /* Socket can't be closed, or is already closed. */ | |
2624 | return 0; | |
2625 | } else { | |
2626 | perror("SOCK_DESTROY answers"); | |
2627 | return -1; | |
2628 | } | |
2629 | } | |
82d73ea0 | 2630 | |
be7e4d20 | 2631 | err = inet_show_sock(h, &s); |
82d73ea0 | 2632 | if (err < 0) |
486ccd99 | 2633 | return err; |
aba5acdf | 2634 | |
486ccd99 VK |
2635 | return 0; |
2636 | } | |
886d19d6 | 2637 | |
486ccd99 VK |
2638 | static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol) |
2639 | { | |
2640 | int err = 0; | |
fb2594c1 | 2641 | struct rtnl_handle rth, rth2; |
486ccd99 VK |
2642 | int family = PF_INET; |
2643 | struct inet_diag_arg arg = { .f = f, .protocol = protocol }; | |
886d19d6 | 2644 | |
486ccd99 VK |
2645 | if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG)) |
2646 | return -1; | |
fb2594c1 LC |
2647 | |
2648 | if (f->kill) { | |
2649 | if (rtnl_open_byproto(&rth2, 0, NETLINK_SOCK_DIAG)) { | |
2650 | rtnl_close(&rth); | |
2651 | return -1; | |
2652 | } | |
2653 | arg.rth = &rth2; | |
2654 | } | |
2655 | ||
486ccd99 VK |
2656 | rth.dump = MAGIC_SEQ; |
2657 | rth.dump_fp = dump_fp; | |
518af1e0 ED |
2658 | if (preferred_family == PF_INET6) |
2659 | family = PF_INET6; | |
886d19d6 | 2660 | |
486ccd99 VK |
2661 | again: |
2662 | if ((err = sockdiag_send(family, rth.fd, protocol, f))) | |
2663 | goto Exit; | |
aba5acdf | 2664 | |
486ccd99 VK |
2665 | if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) { |
2666 | if (family != PF_UNSPEC) { | |
2667 | family = PF_UNSPEC; | |
2668 | goto again; | |
aba5acdf | 2669 | } |
486ccd99 | 2670 | goto Exit; |
aba5acdf | 2671 | } |
518af1e0 | 2672 | if (family == PF_INET && preferred_family != PF_INET) { |
886d19d6 PE |
2673 | family = PF_INET6; |
2674 | goto again; | |
2675 | } | |
2676 | ||
486ccd99 VK |
2677 | Exit: |
2678 | rtnl_close(&rth); | |
fb2594c1 LC |
2679 | if (arg.rth) |
2680 | rtnl_close(arg.rth); | |
486ccd99 | 2681 | return err; |
aba5acdf SH |
2682 | } |
2683 | ||
ab01dbbb | 2684 | static int tcp_show_netlink_file(struct filter *f) |
aba5acdf SH |
2685 | { |
2686 | FILE *fp; | |
e557212e | 2687 | char buf[16384]; |
4b45ae22 | 2688 | int err = -1; |
aba5acdf SH |
2689 | |
2690 | if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) { | |
2691 | perror("fopen($TCPDIAG_FILE)"); | |
4b45ae22 | 2692 | return err; |
aba5acdf SH |
2693 | } |
2694 | ||
2695 | while (1) { | |
4b45ae22 | 2696 | int status, err2; |
acd1e437 | 2697 | struct nlmsghdr *h = (struct nlmsghdr *)buf; |
82d73ea0 | 2698 | struct sockstat s = {}; |
aba5acdf SH |
2699 | |
2700 | status = fread(buf, 1, sizeof(*h), fp); | |
2701 | if (status < 0) { | |
2702 | perror("Reading header from $TCPDIAG_FILE"); | |
4b45ae22 | 2703 | break; |
aba5acdf SH |
2704 | } |
2705 | if (status != sizeof(*h)) { | |
2706 | perror("Unexpected EOF reading $TCPDIAG_FILE"); | |
4b45ae22 | 2707 | break; |
aba5acdf SH |
2708 | } |
2709 | ||
2710 | status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp); | |
2711 | ||
2712 | if (status < 0) { | |
2713 | perror("Reading $TCPDIAG_FILE"); | |
4b45ae22 | 2714 | break; |
aba5acdf SH |
2715 | } |
2716 | if (status + sizeof(*h) < h->nlmsg_len) { | |
2717 | perror("Unexpected EOF reading $TCPDIAG_FILE"); | |
4b45ae22 | 2718 | break; |
aba5acdf SH |
2719 | } |
2720 | ||
2721 | /* The only legal exit point */ | |
4b45ae22 PS |
2722 | if (h->nlmsg_type == NLMSG_DONE) { |
2723 | err = 0; | |
2724 | break; | |
2725 | } | |
aba5acdf SH |
2726 | |
2727 | if (h->nlmsg_type == NLMSG_ERROR) { | |
acd1e437 SH |
2728 | struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h); |
2729 | ||
aba5acdf SH |
2730 | if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) { |
2731 | fprintf(stderr, "ERROR truncated\n"); | |
2732 | } else { | |
2733 | errno = -err->error; | |
2734 | perror("TCPDIAG answered"); | |
2735 | } | |
4b45ae22 | 2736 | break; |
aba5acdf SH |
2737 | } |
2738 | ||
82d73ea0 | 2739 | parse_diag_msg(h, &s); |
be7e4d20 | 2740 | s.type = IPPROTO_TCP; |
82d73ea0 DA |
2741 | |
2742 | if (f && f->f && run_ssfilter(f->f, &s) == 0) | |
2743 | continue; | |
2744 | ||
4b45ae22 PS |
2745 | err2 = inet_show_sock(h, &s); |
2746 | if (err2 < 0) { | |
2747 | err = err2; | |
2748 | break; | |
2749 | } | |
aba5acdf | 2750 | } |
4b45ae22 PS |
2751 | |
2752 | fclose(fp); | |
2753 | return err; | |
aba5acdf SH |
2754 | } |
2755 | ||
ab01dbbb | 2756 | static int tcp_show(struct filter *f, int socktype) |
aba5acdf | 2757 | { |
ab01dbbb | 2758 | FILE *fp = NULL; |
aba5acdf SH |
2759 | char *buf = NULL; |
2760 | int bufsize = 64*1024; | |
2761 | ||
1527a17e VK |
2762 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) |
2763 | return 0; | |
2764 | ||
aba5acdf SH |
2765 | dg_proto = TCP_PROTO; |
2766 | ||
2767 | if (getenv("TCPDIAG_FILE")) | |
2768 | return tcp_show_netlink_file(f); | |
2769 | ||
2770 | if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT") | |
3fe5b534 | 2771 | && inet_show_netlink(f, NULL, socktype) == 0) |
aba5acdf SH |
2772 | return 0; |
2773 | ||
2774 | /* Sigh... We have to parse /proc/net/tcp... */ | |
2775 | ||
ab01dbbb | 2776 | |
aba5acdf SH |
2777 | /* Estimate amount of sockets and try to allocate |
2778 | * huge buffer to read all the table at one read. | |
2779 | * Limit it by 16MB though. The assumption is: as soon as | |
2780 | * kernel was able to hold information about N connections, | |
2781 | * it is able to give us some memory for snapshot. | |
2782 | */ | |
2783 | if (1) { | |
a221d621 BL |
2784 | get_slabstat(&slabstat); |
2785 | ||
aba5acdf | 2786 | int guess = slabstat.socks+slabstat.tcp_syns; |
acd1e437 | 2787 | |
aba5acdf SH |
2788 | if (f->states&(1<<SS_TIME_WAIT)) |
2789 | guess += slabstat.tcp_tws; | |
2790 | if (guess > (16*1024*1024)/128) | |
2791 | guess = (16*1024*1024)/128; | |
2792 | guess *= 128; | |
2793 | if (guess > bufsize) | |
2794 | bufsize = guess; | |
2795 | } | |
2796 | while (bufsize >= 64*1024) { | |
2797 | if ((buf = malloc(bufsize)) != NULL) | |
2798 | break; | |
2799 | bufsize /= 2; | |
2800 | } | |
2801 | if (buf == NULL) { | |
2802 | errno = ENOMEM; | |
2803 | return -1; | |
2804 | } | |
2805 | ||
2806 | if (f->families & (1<<AF_INET)) { | |
69cae645 | 2807 | if ((fp = net_tcp_open()) == NULL) |
aba5acdf | 2808 | goto outerr; |
ab01dbbb SH |
2809 | |
2810 | setbuffer(fp, buf, bufsize); | |
2811 | if (generic_record_read(fp, tcp_show_line, f, AF_INET)) | |
aba5acdf | 2812 | goto outerr; |
ab01dbbb | 2813 | fclose(fp); |
aba5acdf SH |
2814 | } |
2815 | ||
2816 | if ((f->families & (1<<AF_INET6)) && | |
69cae645 | 2817 | (fp = net_tcp6_open()) != NULL) { |
ab01dbbb SH |
2818 | setbuffer(fp, buf, bufsize); |
2819 | if (generic_record_read(fp, tcp_show_line, f, AF_INET6)) | |
aba5acdf | 2820 | goto outerr; |
ab01dbbb | 2821 | fclose(fp); |
aba5acdf SH |
2822 | } |
2823 | ||
2824 | free(buf); | |
2825 | return 0; | |
2826 | ||
2827 | outerr: | |
2828 | do { | |
2829 | int saved_errno = errno; | |
acd1e437 | 2830 | |
92de1c2c | 2831 | free(buf); |
ab01dbbb SH |
2832 | if (fp) |
2833 | fclose(fp); | |
aba5acdf SH |
2834 | errno = saved_errno; |
2835 | return -1; | |
2836 | } while (0); | |
2837 | } | |
2838 | ||
f89d46ad PS |
2839 | static int sctp_show(struct filter *f) |
2840 | { | |
2841 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) | |
2842 | return 0; | |
2843 | ||
2844 | if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT") | |
2845 | && inet_show_netlink(f, NULL, IPPROTO_SCTP) == 0) | |
2846 | return 0; | |
2847 | ||
2848 | return 0; | |
2849 | } | |
aba5acdf | 2850 | |
d1f28cf1 | 2851 | static int dgram_show_line(char *line, const struct filter *f, int family) |
aba5acdf | 2852 | { |
055840f2 | 2853 | struct sockstat s = {}; |
aba5acdf SH |
2854 | char *loc, *rem, *data; |
2855 | char opt[256]; | |
2856 | int n; | |
aba5acdf | 2857 | |
8250bc9f | 2858 | if (proc_inet_split_line(line, &loc, &rem, &data)) |
aba5acdf | 2859 | return -1; |
aba5acdf | 2860 | |
8250bc9f | 2861 | int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0'); |
acd1e437 | 2862 | |
8250bc9f VK |
2863 | if (!(f->states & (1 << state))) |
2864 | return 0; | |
aba5acdf | 2865 | |
8250bc9f | 2866 | proc_parse_inet_addr(loc, rem, family, &s); |
aba5acdf SH |
2867 | |
2868 | if (f->f && run_ssfilter(f->f, &s) == 0) | |
2869 | return 0; | |
2870 | ||
2871 | opt[0] = 0; | |
e7113c61 | 2872 | n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n", |
aba5acdf SH |
2873 | &s.state, &s.wq, &s.rq, |
2874 | &s.uid, &s.ino, | |
2875 | &s.refcnt, &s.sk, opt); | |
2876 | ||
2877 | if (n < 9) | |
2878 | opt[0] = 0; | |
2879 | ||
be7e4d20 PS |
2880 | s.type = dg_proto == UDP_PROTO ? IPPROTO_UDP : 0; |
2881 | inet_stats_print(&s); | |
aba5acdf | 2882 | |
f1b39e1b VK |
2883 | if (show_details && opt[0]) |
2884 | printf(" opt:\"%s\"", opt); | |
aba5acdf | 2885 | |
8250bc9f | 2886 | printf("\n"); |
aba5acdf SH |
2887 | return 0; |
2888 | } | |
2889 | ||
d1f28cf1 | 2890 | static int udp_show(struct filter *f) |
aba5acdf | 2891 | { |
ab01dbbb | 2892 | FILE *fp = NULL; |
aba5acdf | 2893 | |
1527a17e VK |
2894 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) |
2895 | return 0; | |
2896 | ||
ace5cb31 VK |
2897 | dg_proto = UDP_PROTO; |
2898 | ||
346f8ca8 PE |
2899 | if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT") |
2900 | && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0) | |
2901 | return 0; | |
2902 | ||
aba5acdf | 2903 | if (f->families&(1<<AF_INET)) { |
69cae645 | 2904 | if ((fp = net_udp_open()) == NULL) |
aba5acdf | 2905 | goto outerr; |
ab01dbbb | 2906 | if (generic_record_read(fp, dgram_show_line, f, AF_INET)) |
aba5acdf | 2907 | goto outerr; |
ab01dbbb | 2908 | fclose(fp); |
aba5acdf SH |
2909 | } |
2910 | ||
2911 | if ((f->families&(1<<AF_INET6)) && | |
69cae645 | 2912 | (fp = net_udp6_open()) != NULL) { |
ab01dbbb | 2913 | if (generic_record_read(fp, dgram_show_line, f, AF_INET6)) |
aba5acdf | 2914 | goto outerr; |
ab01dbbb | 2915 | fclose(fp); |
aba5acdf SH |
2916 | } |
2917 | return 0; | |
2918 | ||
2919 | outerr: | |
2920 | do { | |
2921 | int saved_errno = errno; | |
acd1e437 | 2922 | |
ab01dbbb SH |
2923 | if (fp) |
2924 | fclose(fp); | |
aba5acdf SH |
2925 | errno = saved_errno; |
2926 | return -1; | |
2927 | } while (0); | |
2928 | } | |
2929 | ||
d1f28cf1 | 2930 | static int raw_show(struct filter *f) |
aba5acdf | 2931 | { |
ab01dbbb | 2932 | FILE *fp = NULL; |
aba5acdf | 2933 | |
1527a17e VK |
2934 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) |
2935 | return 0; | |
2936 | ||
aba5acdf SH |
2937 | dg_proto = RAW_PROTO; |
2938 | ||
41fe6c34 CG |
2939 | if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") && |
2940 | inet_show_netlink(f, NULL, IPPROTO_RAW) == 0) | |
2941 | return 0; | |
2942 | ||
aba5acdf | 2943 | if (f->families&(1<<AF_INET)) { |
69cae645 | 2944 | if ((fp = net_raw_open()) == NULL) |
aba5acdf | 2945 | goto outerr; |
ab01dbbb | 2946 | if (generic_record_read(fp, dgram_show_line, f, AF_INET)) |
aba5acdf | 2947 | goto outerr; |
ab01dbbb | 2948 | fclose(fp); |
aba5acdf SH |
2949 | } |
2950 | ||
2951 | if ((f->families&(1<<AF_INET6)) && | |
69cae645 | 2952 | (fp = net_raw6_open()) != NULL) { |
ab01dbbb | 2953 | if (generic_record_read(fp, dgram_show_line, f, AF_INET6)) |
aba5acdf | 2954 | goto outerr; |
ab01dbbb | 2955 | fclose(fp); |
aba5acdf SH |
2956 | } |
2957 | return 0; | |
2958 | ||
2959 | outerr: | |
2960 | do { | |
2961 | int saved_errno = errno; | |
acd1e437 | 2962 | |
ab01dbbb SH |
2963 | if (fp) |
2964 | fclose(fp); | |
aba5acdf SH |
2965 | errno = saved_errno; |
2966 | return -1; | |
2967 | } while (0); | |
2968 | } | |
2969 | ||
ec4d0d8a | 2970 | #define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat)) |
aba5acdf | 2971 | |
2d0e538f | 2972 | static void unix_list_drop_first(struct sockstat **list) |
aba5acdf | 2973 | { |
2d0e538f | 2974 | struct sockstat *s = *list; |
ec4d0d8a | 2975 | |
2d0e538f PS |
2976 | (*list) = (*list)->next; |
2977 | free(s->name); | |
2978 | free(s); | |
aba5acdf SH |
2979 | } |
2980 | ||
ec4d0d8a | 2981 | static bool unix_type_skip(struct sockstat *s, struct filter *f) |
bf4ceee6 VK |
2982 | { |
2983 | if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB))) | |
2984 | return true; | |
2985 | if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB))) | |
2986 | return true; | |
2987 | if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB))) | |
2988 | return true; | |
2989 | return false; | |
2990 | } | |
2991 | ||
2d0e538f | 2992 | static void unix_stats_print(struct sockstat *s, struct filter *f) |
aba5acdf | 2993 | { |
b217df10 | 2994 | char port_name[30] = {}; |
aba5acdf | 2995 | |
2d0e538f | 2996 | sock_state_print(s); |
2d791bc8 | 2997 | |
2d0e538f PS |
2998 | sock_addr_print(s->name ?: "*", " ", |
2999 | int_to_str(s->lport, port_name), NULL); | |
3000 | sock_addr_print(s->peer_name ?: "*", " ", | |
3001 | int_to_str(s->rport, port_name), NULL); | |
116ac927 | 3002 | |
2d0e538f | 3003 | proc_ctx_print(s); |
aba5acdf SH |
3004 | } |
3005 | ||
8a4025f6 | 3006 | static int unix_show_sock(const struct sockaddr_nl *addr, struct nlmsghdr *nlh, |
3007 | void *arg) | |
dfbaa90d | 3008 | { |
8a4025f6 | 3009 | struct filter *f = (struct filter *)arg; |
dfbaa90d PE |
3010 | struct unix_diag_msg *r = NLMSG_DATA(nlh); |
3011 | struct rtattr *tb[UNIX_DIAG_MAX+1]; | |
99bb68ff VK |
3012 | char name[128]; |
3013 | struct sockstat stat = { .name = "*", .peer_name = "*" }; | |
dfbaa90d | 3014 | |
acd1e437 | 3015 | parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr *)(r+1), |
dfbaa90d PE |
3016 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); |
3017 | ||
bf4ceee6 VK |
3018 | stat.type = r->udiag_type; |
3019 | stat.state = r->udiag_state; | |
ec4d0d8a VK |
3020 | stat.ino = stat.lport = r->udiag_ino; |
3021 | stat.local.family = stat.remote.family = AF_UNIX; | |
0d2e01c5 | 3022 | |
bf4ceee6 VK |
3023 | if (unix_type_skip(&stat, f)) |
3024 | return 0; | |
dfbaa90d | 3025 | |
defd61ca HFS |
3026 | if (tb[UNIX_DIAG_RQLEN]) { |
3027 | struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]); | |
acd1e437 | 3028 | |
bf4ceee6 VK |
3029 | stat.rq = rql->udiag_rqueue; |
3030 | stat.wq = rql->udiag_wqueue; | |
defd61ca | 3031 | } |
dfbaa90d PE |
3032 | if (tb[UNIX_DIAG_NAME]) { |
3033 | int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]); | |
3034 | ||
3035 | memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len); | |
3036 | name[len] = '\0'; | |
1dd0cca7 SH |
3037 | if (name[0] == '\0') { |
3038 | int i; | |
3039 | for (i = 0; i < len; i++) | |
878dadc7 IB |
3040 | if (name[i] == '\0') |
3041 | name[i] = '@'; | |
1dd0cca7 | 3042 | } |
99bb68ff VK |
3043 | stat.name = &name[0]; |
3044 | memcpy(stat.local.data, &stat.name, sizeof(stat.name)); | |
bf4ceee6 | 3045 | } |
dfbaa90d | 3046 | if (tb[UNIX_DIAG_PEER]) |
ec4d0d8a | 3047 | stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]); |
dfbaa90d | 3048 | |
29999b0f VK |
3049 | if (f->f && run_ssfilter(f->f, &stat) == 0) |
3050 | return 0; | |
3051 | ||
bf4ceee6 | 3052 | unix_stats_print(&stat, f); |
dfbaa90d | 3053 | |
45199997 | 3054 | if (show_mem) |
51ff9f24 | 3055 | print_skmeminfo(tb, UNIX_DIAG_MEMINFO); |
5b816047 PE |
3056 | if (show_details) { |
3057 | if (tb[UNIX_DIAG_SHUTDOWN]) { | |
3058 | unsigned char mask; | |
acd1e437 | 3059 | |
9f1370c0 | 3060 | mask = rta_getattr_u8(tb[UNIX_DIAG_SHUTDOWN]); |
5b816047 PE |
3061 | printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>'); |
3062 | } | |
3063 | } | |
2d0e538f | 3064 | printf("\n"); |
ec4d0d8a | 3065 | |
dfbaa90d PE |
3066 | return 0; |
3067 | } | |
3068 | ||
8a4025f6 | 3069 | static int handle_netlink_request(struct filter *f, struct nlmsghdr *req, |
3070 | size_t size, rtnl_filter_t show_one_sock) | |
dfbaa90d | 3071 | { |
8a4025f6 | 3072 | int ret = -1; |
3073 | struct rtnl_handle rth; | |
dfbaa90d | 3074 | |
8a4025f6 | 3075 | if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG)) |
dfbaa90d PE |
3076 | return -1; |
3077 | ||
8a4025f6 | 3078 | rth.dump = MAGIC_SEQ; |
dfbaa90d | 3079 | |
8a4025f6 | 3080 | if (rtnl_send(&rth, req, size) < 0) |
3081 | goto Exit; | |
dfbaa90d | 3082 | |
8a4025f6 | 3083 | if (rtnl_dump_filter(&rth, show_one_sock, f)) |
3084 | goto Exit; | |
dfbaa90d | 3085 | |
8a4025f6 | 3086 | ret = 0; |
3087 | Exit: | |
3088 | rtnl_close(&rth); | |
3089 | return ret; | |
dfbaa90d PE |
3090 | } |
3091 | ||
8a4025f6 | 3092 | static int unix_show_netlink(struct filter *f) |
d8402b96 | 3093 | { |
5fb421d4 | 3094 | DIAG_REQUEST(req, struct unix_diag_req r); |
d8402b96 AV |
3095 | |
3096 | req.r.sdiag_family = AF_UNIX; | |
3097 | req.r.udiag_states = f->states; | |
3098 | req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN; | |
3099 | if (show_mem) | |
3100 | req.r.udiag_show |= UDIAG_SHOW_MEMINFO; | |
3101 | ||
8a4025f6 | 3102 | return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock); |
d8402b96 AV |
3103 | } |
3104 | ||
d1f28cf1 | 3105 | static int unix_show(struct filter *f) |
aba5acdf SH |
3106 | { |
3107 | FILE *fp; | |
3108 | char buf[256]; | |
3109 | char name[128]; | |
3110 | int newformat = 0; | |
3111 | int cnt; | |
ec4d0d8a | 3112 | struct sockstat *list = NULL; |
96d45daa PS |
3113 | const int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT, |
3114 | SS_ESTABLISHED, SS_CLOSING }; | |
aba5acdf | 3115 | |
9db7bf15 VK |
3116 | if (!filter_af_get(f, AF_UNIX)) |
3117 | return 0; | |
3118 | ||
f25062e9 PS |
3119 | if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT") |
3120 | && unix_show_netlink(f) == 0) | |
dfbaa90d PE |
3121 | return 0; |
3122 | ||
ab01dbbb | 3123 | if ((fp = net_unix_open()) == NULL) |
aba5acdf | 3124 | return -1; |
61170fd8 | 3125 | if (!fgets(buf, sizeof(buf), fp)) { |
d572ed4d PS |
3126 | fclose(fp); |
3127 | return -1; | |
3128 | } | |
aba5acdf | 3129 | |
ae665a52 | 3130 | if (memcmp(buf, "Peer", 4) == 0) |
aba5acdf SH |
3131 | newformat = 1; |
3132 | cnt = 0; | |
3133 | ||
61170fd8 | 3134 | while (fgets(buf, sizeof(buf), fp)) { |
ec4d0d8a | 3135 | struct sockstat *u, **insp; |
aba5acdf SH |
3136 | int flags; |
3137 | ||
0ee9052f | 3138 | if (!(u = calloc(1, sizeof(*u)))) |
aba5acdf | 3139 | break; |
aba5acdf SH |
3140 | |
3141 | if (sscanf(buf, "%x: %x %x %x %x %x %d %s", | |
ec4d0d8a | 3142 | &u->rport, &u->rq, &u->wq, &flags, &u->type, |
aba5acdf SH |
3143 | &u->state, &u->ino, name) < 8) |
3144 | name[0] = 0; | |
3145 | ||
ec4d0d8a VK |
3146 | u->lport = u->ino; |
3147 | u->local.family = u->remote.family = AF_UNIX; | |
3148 | ||
3149 | if (flags & (1 << 16)) { | |
aba5acdf | 3150 | u->state = SS_LISTEN; |
0aa03350 PS |
3151 | } else if (u->state > 0 && |
3152 | u->state <= ARRAY_SIZE(unix_state_map)) { | |
aba5acdf | 3153 | u->state = unix_state_map[u->state-1]; |
ec4d0d8a | 3154 | if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport) |
aba5acdf SH |
3155 | u->state = SS_ESTABLISHED; |
3156 | } | |
2d0e538f PS |
3157 | if (unix_type_skip(u, f) || |
3158 | !(f->states & (1 << u->state))) { | |
3159 | free(u); | |
3160 | continue; | |
3161 | } | |
aba5acdf SH |
3162 | |
3163 | if (!newformat) { | |
ec4d0d8a | 3164 | u->rport = 0; |
aba5acdf SH |
3165 | u->rq = 0; |
3166 | u->wq = 0; | |
3167 | } | |
3168 | ||
2d0e538f PS |
3169 | if (name[0]) { |
3170 | u->name = strdup(name); | |
46131577 PS |
3171 | if (!u->name) { |
3172 | free(u); | |
2d0e538f | 3173 | break; |
46131577 | 3174 | } |
2d0e538f PS |
3175 | } |
3176 | ||
3177 | if (u->rport) { | |
3178 | struct sockstat *p; | |
3179 | ||
3180 | for (p = list; p; p = p->next) { | |
3181 | if (u->rport == p->lport) | |
3182 | break; | |
3183 | } | |
3184 | if (!p) | |
3185 | u->peer_name = "?"; | |
3186 | else | |
3187 | u->peer_name = p->name ? : "*"; | |
3188 | } | |
3189 | ||
3190 | if (f->f) { | |
3191 | struct sockstat st = { | |
3192 | .local.family = AF_UNIX, | |
3193 | .remote.family = AF_UNIX, | |
3194 | }; | |
3195 | ||
3196 | memcpy(st.local.data, &u->name, sizeof(u->name)); | |
3197 | if (strcmp(u->peer_name, "*")) | |
3198 | memcpy(st.remote.data, &u->peer_name, | |
3199 | sizeof(u->peer_name)); | |
3200 | if (run_ssfilter(f->f, &st) == 0) { | |
3201 | free(u->name); | |
3202 | free(u); | |
3203 | continue; | |
3204 | } | |
3205 | } | |
3206 | ||
aba5acdf SH |
3207 | insp = &list; |
3208 | while (*insp) { | |
3209 | if (u->type < (*insp)->type || | |
3210 | (u->type == (*insp)->type && | |
3211 | u->ino < (*insp)->ino)) | |
3212 | break; | |
3213 | insp = &(*insp)->next; | |
3214 | } | |
3215 | u->next = *insp; | |
3216 | *insp = u; | |
3217 | ||
aba5acdf | 3218 | if (++cnt > MAX_UNIX_REMEMBER) { |
2d0e538f PS |
3219 | while (list) { |
3220 | unix_stats_print(list, f); | |
3221 | printf("\n"); | |
3222 | ||
3223 | unix_list_drop_first(&list); | |
3224 | } | |
aba5acdf SH |
3225 | cnt = 0; |
3226 | } | |
3227 | } | |
a3fd8e58 | 3228 | fclose(fp); |
2d0e538f | 3229 | while (list) { |
bf4ceee6 | 3230 | unix_stats_print(list, f); |
2d0e538f PS |
3231 | printf("\n"); |
3232 | ||
3233 | unix_list_drop_first(&list); | |
aba5acdf SH |
3234 | } |
3235 | ||
3236 | return 0; | |
3237 | } | |
3238 | ||
89f634f9 | 3239 | static int packet_stats_print(struct sockstat *s, const struct filter *f) |
4a0053b6 | 3240 | { |
b217df10 VK |
3241 | const char *addr, *port; |
3242 | char ll_name[16]; | |
372c30d2 | 3243 | |
be7e4d20 PS |
3244 | s->local.family = s->remote.family = AF_PACKET; |
3245 | ||
4a0053b6 | 3246 | if (f->f) { |
89f634f9 | 3247 | s->local.data[0] = s->prot; |
89f634f9 | 3248 | if (run_ssfilter(f->f, s) == 0) |
4a0053b6 VK |
3249 | return 1; |
3250 | } | |
372c30d2 | 3251 | |
be7e4d20 | 3252 | sock_state_print(s); |
372c30d2 | 3253 | |
b217df10 VK |
3254 | if (s->prot == 3) |
3255 | addr = "*"; | |
3256 | else | |
3257 | addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name)); | |
3258 | ||
3259 | if (s->iface == 0) | |
3260 | port = "*"; | |
3261 | else | |
3262 | port = xll_index_to_name(s->iface); | |
372c30d2 | 3263 | |
b217df10 VK |
3264 | sock_addr_print(addr, ":", port, NULL); |
3265 | sock_addr_print("", "*", "", NULL); | |
116ac927 | 3266 | |
5f27ac1d | 3267 | proc_ctx_print(s); |
116ac927 | 3268 | |
f1b39e1b VK |
3269 | if (show_details) |
3270 | sock_details_print(s); | |
3271 | ||
4a0053b6 VK |
3272 | return 0; |
3273 | } | |
3274 | ||
2631b856 VK |
3275 | static void packet_show_ring(struct packet_diag_ring *ring) |
3276 | { | |
3277 | printf("blk_size:%d", ring->pdr_block_size); | |
3278 | printf(",blk_nr:%d", ring->pdr_block_nr); | |
3279 | printf(",frm_size:%d", ring->pdr_frame_size); | |
3280 | printf(",frm_nr:%d", ring->pdr_frame_nr); | |
3281 | printf(",tmo:%d", ring->pdr_retire_tmo); | |
3282 | printf(",features:0x%x", ring->pdr_features); | |
3283 | } | |
3284 | ||
4a0053b6 VK |
3285 | static int packet_show_sock(const struct sockaddr_nl *addr, |
3286 | struct nlmsghdr *nlh, void *arg) | |
3287 | { | |
3288 | const struct filter *f = arg; | |
3289 | struct packet_diag_msg *r = NLMSG_DATA(nlh); | |
2631b856 VK |
3290 | struct packet_diag_info *pinfo = NULL; |
3291 | struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL; | |
4a0053b6 | 3292 | struct rtattr *tb[PACKET_DIAG_MAX+1]; |
89f634f9 | 3293 | struct sockstat stat = {}; |
2631b856 VK |
3294 | uint32_t fanout = 0; |
3295 | bool has_fanout = false; | |
4a0053b6 | 3296 | |
acd1e437 | 3297 | parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr *)(r+1), |
4a0053b6 VK |
3298 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); |
3299 | ||
3300 | /* use /proc/net/packet if all info are not available */ | |
3301 | if (!tb[PACKET_DIAG_MEMINFO]) | |
3302 | return -1; | |
3303 | ||
2d791bc8 VK |
3304 | stat.type = r->pdiag_type; |
3305 | stat.prot = r->pdiag_num; | |
3306 | stat.ino = r->pdiag_ino; | |
3307 | stat.state = SS_CLOSE; | |
f1b39e1b | 3308 | stat.sk = cookie_sk_get(&r->pdiag_cookie[0]); |
4a0053b6 VK |
3309 | |
3310 | if (tb[PACKET_DIAG_MEMINFO]) { | |
3311 | __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]); | |
acd1e437 | 3312 | |
4a0053b6 VK |
3313 | stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC]; |
3314 | } | |
3315 | ||
3316 | if (tb[PACKET_DIAG_INFO]) { | |
2631b856 | 3317 | pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]); |
2d791bc8 | 3318 | stat.lport = stat.iface = pinfo->pdi_index; |
4a0053b6 VK |
3319 | } |
3320 | ||
f1b39e1b | 3321 | if (tb[PACKET_DIAG_UID]) |
9f1370c0 | 3322 | stat.uid = rta_getattr_u32(tb[PACKET_DIAG_UID]); |
f1b39e1b | 3323 | |
2631b856 VK |
3324 | if (tb[PACKET_DIAG_RX_RING]) |
3325 | ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]); | |
3326 | ||
3327 | if (tb[PACKET_DIAG_TX_RING]) | |
3328 | ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]); | |
3329 | ||
3330 | if (tb[PACKET_DIAG_FANOUT]) { | |
3331 | has_fanout = true; | |
9f1370c0 | 3332 | fanout = rta_getattr_u32(tb[PACKET_DIAG_FANOUT]); |
2631b856 VK |
3333 | } |
3334 | ||
4a0053b6 VK |
3335 | if (packet_stats_print(&stat, f)) |
3336 | return 0; | |
3337 | ||
2631b856 VK |
3338 | if (show_details) { |
3339 | if (pinfo) { | |
3340 | printf("\n\tver:%d", pinfo->pdi_version); | |
3341 | printf(" cpy_thresh:%d", pinfo->pdi_copy_thresh); | |
3342 | printf(" flags( "); | |
3343 | if (pinfo->pdi_flags & PDI_RUNNING) | |
3344 | printf("running"); | |
3345 | if (pinfo->pdi_flags & PDI_AUXDATA) | |
3346 | printf(" auxdata"); | |
3347 | if (pinfo->pdi_flags & PDI_ORIGDEV) | |
3348 | printf(" origdev"); | |
3349 | if (pinfo->pdi_flags & PDI_VNETHDR) | |
3350 | printf(" vnethdr"); | |
3351 | if (pinfo->pdi_flags & PDI_LOSS) | |
3352 | printf(" loss"); | |
3353 | if (!pinfo->pdi_flags) | |
3354 | printf("0"); | |
3355 | printf(" )"); | |
3356 | } | |
3357 | if (ring_rx) { | |
3358 | printf("\n\tring_rx("); | |
3359 | packet_show_ring(ring_rx); | |
3360 | printf(")"); | |
3361 | } | |
3362 | if (ring_tx) { | |
3363 | printf("\n\tring_tx("); | |
3364 | packet_show_ring(ring_tx); | |
3365 | printf(")"); | |
3366 | } | |
3367 | if (has_fanout) { | |
3368 | uint16_t type = (fanout >> 16) & 0xffff; | |
3369 | ||
3370 | printf("\n\tfanout("); | |
3371 | printf("id:%d,", fanout & 0xffff); | |
3372 | printf("type:"); | |
3373 | ||
3374 | if (type == 0) | |
3375 | printf("hash"); | |
3376 | else if (type == 1) | |
3377 | printf("lb"); | |
3378 | else if (type == 2) | |
3379 | printf("cpu"); | |
3380 | else if (type == 3) | |
3381 | printf("roll"); | |
3382 | else if (type == 4) | |
3383 | printf("random"); | |
3384 | else if (type == 5) | |
3385 | printf("qm"); | |
3386 | else | |
3387 | printf("0x%x", type); | |
3388 | ||
3389 | printf(")"); | |
3390 | } | |
3391 | } | |
3392 | ||
372c30d2 ND |
3393 | if (show_bpf && tb[PACKET_DIAG_FILTER]) { |
3394 | struct sock_filter *fil = | |
3395 | RTA_DATA(tb[PACKET_DIAG_FILTER]); | |
3396 | int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) / | |
3397 | sizeof(struct sock_filter); | |
3398 | ||
3399 | printf("\n\tbpf filter (%d): ", num); | |
3400 | while (num) { | |
3401 | printf(" 0x%02x %u %u %u,", | |
3402 | fil->code, fil->jt, fil->jf, fil->k); | |
3403 | num--; | |
3404 | fil++; | |
3405 | } | |
3406 | } | |
3407 | printf("\n"); | |
3408 | return 0; | |
3409 | } | |
3410 | ||
8a4025f6 | 3411 | static int packet_show_netlink(struct filter *f) |
372c30d2 | 3412 | { |
5fb421d4 | 3413 | DIAG_REQUEST(req, struct packet_diag_req r); |
372c30d2 | 3414 | |
372c30d2 | 3415 | req.r.sdiag_family = AF_PACKET; |
2631b856 VK |
3416 | req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO | |
3417 | PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT; | |
372c30d2 | 3418 | |
8a4025f6 | 3419 | return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock); |
372c30d2 ND |
3420 | } |
3421 | ||
4a0053b6 VK |
3422 | static int packet_show_line(char *buf, const struct filter *f, int fam) |
3423 | { | |
3424 | unsigned long long sk; | |
89f634f9 | 3425 | struct sockstat stat = {}; |
4a0053b6 VK |
3426 | int type, prot, iface, state, rq, uid, ino; |
3427 | ||
3428 | sscanf(buf, "%llx %*d %d %x %d %d %u %u %u", | |
3429 | &sk, | |
3430 | &type, &prot, &iface, &state, | |
3431 | &rq, &uid, &ino); | |
3432 | ||
3433 | if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB))) | |
3434 | return 0; | |
3435 | if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB))) | |
3436 | return 0; | |
3437 | ||
3438 | stat.type = type; | |
3439 | stat.prot = prot; | |
2d791bc8 | 3440 | stat.lport = stat.iface = iface; |
4a0053b6 VK |
3441 | stat.state = state; |
3442 | stat.rq = rq; | |
3443 | stat.uid = uid; | |
3444 | stat.ino = ino; | |
2d791bc8 VK |
3445 | stat.state = SS_CLOSE; |
3446 | ||
4a0053b6 VK |
3447 | if (packet_stats_print(&stat, f)) |
3448 | return 0; | |
3449 | ||
4a0053b6 VK |
3450 | printf("\n"); |
3451 | return 0; | |
3452 | } | |
aba5acdf | 3453 | |
d1f28cf1 | 3454 | static int packet_show(struct filter *f) |
aba5acdf SH |
3455 | { |
3456 | FILE *fp; | |
b95d28c3 | 3457 | int rc = 0; |
3d0b7439 | 3458 | |
9db7bf15 | 3459 | if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE))) |
b9ea445d | 3460 | return 0; |
aba5acdf | 3461 | |
4a0053b6 VK |
3462 | if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") && |
3463 | packet_show_netlink(f) == 0) | |
372c30d2 ND |
3464 | return 0; |
3465 | ||
ab01dbbb | 3466 | if ((fp = net_packet_open()) == NULL) |
aba5acdf | 3467 | return -1; |
4a0053b6 | 3468 | if (generic_record_read(fp, packet_show_line, f, AF_PACKET)) |
b95d28c3 | 3469 | rc = -1; |
aba5acdf | 3470 | |
b95d28c3 PS |
3471 | fclose(fp); |
3472 | return rc; | |
aba5acdf SH |
3473 | } |
3474 | ||
5f24ec0e | 3475 | static int netlink_show_one(struct filter *f, |
acd1e437 SH |
3476 | int prot, int pid, unsigned int groups, |
3477 | int state, int dst_pid, unsigned int dst_group, | |
129709ae AV |
3478 | int rq, int wq, |
3479 | unsigned long long sk, unsigned long long cb) | |
3480 | { | |
301826be PS |
3481 | struct sockstat st = { |
3482 | .state = SS_CLOSE, | |
3483 | .rq = rq, | |
3484 | .wq = wq, | |
3485 | .local.family = AF_NETLINK, | |
3486 | .remote.family = AF_NETLINK, | |
3487 | }; | |
acd1e437 | 3488 | |
b217df10 VK |
3489 | SPRINT_BUF(prot_buf) = {}; |
3490 | const char *prot_name; | |
3491 | char procname[64] = {}; | |
eef43b50 | 3492 | |
129709ae | 3493 | if (f->f) { |
055840f2 VK |
3494 | st.rport = -1; |
3495 | st.lport = pid; | |
3496 | st.local.data[0] = prot; | |
055840f2 | 3497 | if (run_ssfilter(f->f, &st) == 0) |
5f24ec0e | 3498 | return 1; |
129709ae AV |
3499 | } |
3500 | ||
be7e4d20 | 3501 | sock_state_print(&st); |
eef43b50 | 3502 | |
b217df10 VK |
3503 | if (resolve_services) |
3504 | prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf)); | |
3505 | else | |
3506 | prot_name = int_to_str(prot, prot_buf); | |
eef43b50 | 3507 | |
129709ae | 3508 | if (pid == -1) { |
b217df10 | 3509 | procname[0] = '*'; |
129709ae AV |
3510 | } else if (resolve_services) { |
3511 | int done = 0; | |
acd1e437 | 3512 | |
129709ae AV |
3513 | if (!pid) { |
3514 | done = 1; | |
b217df10 | 3515 | strncpy(procname, "kernel", 6); |
129709ae | 3516 | } else if (pid > 0) { |
129709ae | 3517 | FILE *fp; |
acd1e437 | 3518 | |
0ee9052f | 3519 | snprintf(procname, sizeof(procname), "%s/%d/stat", |
129709ae AV |
3520 | getenv("PROC_ROOT") ? : "/proc", pid); |
3521 | if ((fp = fopen(procname, "r")) != NULL) { | |
3522 | if (fscanf(fp, "%*d (%[^)])", procname) == 1) { | |
0ee9052f | 3523 | snprintf(procname+strlen(procname), |
3524 | sizeof(procname)-strlen(procname), | |
3525 | "/%d", pid); | |
129709ae AV |
3526 | done = 1; |
3527 | } | |
3528 | fclose(fp); | |
3529 | } | |
3530 | } | |
3531 | if (!done) | |
b217df10 | 3532 | int_to_str(pid, procname); |
129709ae | 3533 | } else { |
b217df10 | 3534 | int_to_str(pid, procname); |
129709ae | 3535 | } |
f271fe01 | 3536 | |
b217df10 VK |
3537 | sock_addr_print(prot_name, ":", procname, NULL); |
3538 | ||
f271fe01 | 3539 | if (state == NETLINK_CONNECTED) { |
b217df10 VK |
3540 | char dst_group_buf[30]; |
3541 | char dst_pid_buf[30]; | |
acd1e437 | 3542 | |
b217df10 VK |
3543 | sock_addr_print(int_to_str(dst_group, dst_group_buf), ":", |
3544 | int_to_str(dst_pid, dst_pid_buf), NULL); | |
f271fe01 | 3545 | } else { |
b217df10 | 3546 | sock_addr_print("", "*", "", NULL); |
f271fe01 | 3547 | } |
129709ae | 3548 | |
116ac927 | 3549 | char *pid_context = NULL; |
acd1e437 | 3550 | |
116ac927 RH |
3551 | if (show_proc_ctx) { |
3552 | /* The pid value will either be: | |
3553 | * 0 if destination kernel - show kernel initial context. | |
3554 | * A valid process pid - use getpidcon. | |
3555 | * A unique value allocated by the kernel or netlink user | |
3556 | * to the process - show context as "not available". | |
3557 | */ | |
3558 | if (!pid) | |
3559 | security_get_initial_context("kernel", &pid_context); | |
3560 | else if (pid > 0) | |
3561 | getpidcon(pid, &pid_context); | |
3562 | ||
3563 | if (pid_context != NULL) { | |
3564 | printf("proc_ctx=%-*s ", serv_width, pid_context); | |
3565 | free(pid_context); | |
3566 | } else { | |
3567 | printf("proc_ctx=%-*s ", serv_width, "unavailable"); | |
3568 | } | |
3569 | } | |
3570 | ||
129709ae AV |
3571 | if (show_details) { |
3572 | printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups); | |
3573 | } | |
3574 | printf("\n"); | |
3575 | ||
5f24ec0e | 3576 | return 0; |
129709ae AV |
3577 | } |
3578 | ||
8a4025f6 | 3579 | static int netlink_show_sock(const struct sockaddr_nl *addr, |
3580 | struct nlmsghdr *nlh, void *arg) | |
ecb928c8 | 3581 | { |
8a4025f6 | 3582 | struct filter *f = (struct filter *)arg; |
ecb928c8 AV |
3583 | struct netlink_diag_msg *r = NLMSG_DATA(nlh); |
3584 | struct rtattr *tb[NETLINK_DIAG_MAX+1]; | |
3585 | int rq = 0, wq = 0; | |
3586 | unsigned long groups = 0; | |
3587 | ||
acd1e437 | 3588 | parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr *)(r+1), |
ecb928c8 AV |
3589 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); |
3590 | ||
3591 | if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS])) | |
3592 | groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]); | |
3593 | ||
3594 | if (tb[NETLINK_DIAG_MEMINFO]) { | |
3595 | const __u32 *skmeminfo; | |
acd1e437 | 3596 | |
ecb928c8 AV |
3597 | skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]); |
3598 | ||
3599 | rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC]; | |
3600 | wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC]; | |
3601 | } | |
3602 | ||
5f24ec0e | 3603 | if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups, |
ecb928c8 | 3604 | r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group, |
5f24ec0e VK |
3605 | rq, wq, 0, 0)) { |
3606 | return 0; | |
3607 | } | |
ecb928c8 AV |
3608 | |
3609 | if (show_mem) { | |
3610 | printf("\t"); | |
3611 | print_skmeminfo(tb, NETLINK_DIAG_MEMINFO); | |
3612 | printf("\n"); | |
3613 | } | |
3614 | ||
3615 | return 0; | |
3616 | } | |
3617 | ||
8a4025f6 | 3618 | static int netlink_show_netlink(struct filter *f) |
ecb928c8 | 3619 | { |
5fb421d4 | 3620 | DIAG_REQUEST(req, struct netlink_diag_req r); |
ecb928c8 AV |
3621 | |
3622 | req.r.sdiag_family = AF_NETLINK; | |
3623 | req.r.sdiag_protocol = NDIAG_PROTO_ALL; | |
3624 | req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO; | |
3625 | ||
8a4025f6 | 3626 | return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock); |
ecb928c8 AV |
3627 | } |
3628 | ||
d1f28cf1 | 3629 | static int netlink_show(struct filter *f) |
aba5acdf SH |
3630 | { |
3631 | FILE *fp; | |
3632 | char buf[256]; | |
3633 | int prot, pid; | |
acd1e437 | 3634 | unsigned int groups; |
aba5acdf SH |
3635 | int rq, wq, rc; |
3636 | unsigned long long sk, cb; | |
3637 | ||
9db7bf15 | 3638 | if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE))) |
b9ea445d VK |
3639 | return 0; |
3640 | ||
129709ae | 3641 | if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") && |
8a4025f6 | 3642 | netlink_show_netlink(f) == 0) |
129709ae AV |
3643 | return 0; |
3644 | ||
ab01dbbb | 3645 | if ((fp = net_netlink_open()) == NULL) |
aba5acdf | 3646 | return -1; |
61170fd8 | 3647 | if (!fgets(buf, sizeof(buf), fp)) { |
d572ed4d PS |
3648 | fclose(fp); |
3649 | return -1; | |
3650 | } | |
aba5acdf | 3651 | |
61170fd8 | 3652 | while (fgets(buf, sizeof(buf), fp)) { |
aba5acdf SH |
3653 | sscanf(buf, "%llx %d %d %x %d %d %llx %d", |
3654 | &sk, | |
3655 | &prot, &pid, &groups, &rq, &wq, &cb, &rc); | |
3656 | ||
f271fe01 | 3657 | netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb); |
aba5acdf SH |
3658 | } |
3659 | ||
b95d28c3 | 3660 | fclose(fp); |
aba5acdf SH |
3661 | return 0; |
3662 | } | |
3663 | ||
6885e3bf CG |
3664 | struct sock_diag_msg { |
3665 | __u8 sdiag_family; | |
3666 | }; | |
3667 | ||
3668 | static int generic_show_sock(const struct sockaddr_nl *addr, | |
3669 | struct nlmsghdr *nlh, void *arg) | |
3670 | { | |
3671 | struct sock_diag_msg *r = NLMSG_DATA(nlh); | |
3672 | struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX }; | |
3673 | ||
3674 | switch (r->sdiag_family) { | |
3675 | case AF_INET: | |
3676 | case AF_INET6: | |
3677 | return show_one_inet_sock(addr, nlh, &inet_arg); | |
3678 | case AF_UNIX: | |
3679 | return unix_show_sock(addr, nlh, arg); | |
3680 | case AF_PACKET: | |
3681 | return packet_show_sock(addr, nlh, arg); | |
3682 | case AF_NETLINK: | |
3683 | return netlink_show_sock(addr, nlh, arg); | |
3684 | default: | |
3685 | return -1; | |
3686 | } | |
3687 | } | |
3688 | ||
3689 | static int handle_follow_request(struct filter *f) | |
3690 | { | |
6b224dad | 3691 | int ret = 0; |
6885e3bf CG |
3692 | int groups = 0; |
3693 | struct rtnl_handle rth; | |
3694 | ||
3695 | if (f->families & (1 << AF_INET) && f->dbs & (1 << TCP_DB)) | |
3696 | groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1); | |
3697 | if (f->families & (1 << AF_INET) && f->dbs & (1 << UDP_DB)) | |
3698 | groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1); | |
3699 | if (f->families & (1 << AF_INET6) && f->dbs & (1 << TCP_DB)) | |
3700 | groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1); | |
3701 | if (f->families & (1 << AF_INET6) && f->dbs & (1 << UDP_DB)) | |
3702 | groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1); | |
3703 | ||
3704 | if (groups == 0) | |
3705 | return -1; | |
3706 | ||
3707 | if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG)) | |
3708 | return -1; | |
3709 | ||
3710 | rth.dump = 0; | |
3711 | rth.local.nl_pid = 0; | |
3712 | ||
3713 | if (rtnl_dump_filter(&rth, generic_show_sock, f)) | |
6b224dad | 3714 | ret = -1; |
6885e3bf | 3715 | |
6885e3bf CG |
3716 | rtnl_close(&rth); |
3717 | return ret; | |
3718 | } | |
3719 | ||
d1f28cf1 | 3720 | static int get_snmp_int(char *proto, char *key, int *result) |
aba5acdf SH |
3721 | { |
3722 | char buf[1024]; | |
3723 | FILE *fp; | |
3724 | int protolen = strlen(proto); | |
3725 | int keylen = strlen(key); | |
3726 | ||
3727 | *result = 0; | |
3728 | ||
ab01dbbb | 3729 | if ((fp = net_snmp_open()) == NULL) |
aba5acdf SH |
3730 | return -1; |
3731 | ||
3732 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
3733 | char *p = buf; | |
3734 | int pos = 0; | |
acd1e437 | 3735 | |
aba5acdf SH |
3736 | if (memcmp(buf, proto, protolen)) |
3737 | continue; | |
3738 | while ((p = strchr(p, ' ')) != NULL) { | |
3739 | pos++; | |
3740 | p++; | |
3741 | if (memcmp(p, key, keylen) == 0 && | |
3742 | (p[keylen] == ' ' || p[keylen] == '\n')) | |
3743 | break; | |
3744 | } | |
3745 | if (fgets(buf, sizeof(buf), fp) == NULL) | |
3746 | break; | |
3747 | if (memcmp(buf, proto, protolen)) | |
3748 | break; | |
3749 | p = buf; | |
3750 | while ((p = strchr(p, ' ')) != NULL) { | |
3751 | p++; | |
3752 | if (--pos == 0) { | |
3753 | sscanf(p, "%d", result); | |
3754 | fclose(fp); | |
3755 | return 0; | |
3756 | } | |
3757 | } | |
3758 | } | |
3759 | ||
3760 | fclose(fp); | |
3761 | errno = ESRCH; | |
3762 | return -1; | |
3763 | } | |
3764 | ||
3765 | ||
3766 | /* Get stats from sockstat */ | |
3767 | ||
acd1e437 | 3768 | struct ssummary { |
aba5acdf SH |
3769 | int socks; |
3770 | int tcp_mem; | |
3771 | int tcp_total; | |
3772 | int tcp_orphans; | |
3773 | int tcp_tws; | |
3774 | int tcp4_hashed; | |
3775 | int udp4; | |
3776 | int raw4; | |
3777 | int frag4; | |
3778 | int frag4_mem; | |
3779 | int tcp6_hashed; | |
3780 | int udp6; | |
3781 | int raw6; | |
3782 | int frag6; | |
3783 | int frag6_mem; | |
3784 | }; | |
3785 | ||
055840f2 | 3786 | static void get_sockstat_line(char *line, struct ssummary *s) |
aba5acdf SH |
3787 | { |
3788 | char id[256], rem[256]; | |
3789 | ||
3790 | if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2) | |
3791 | return; | |
3792 | ||
3793 | if (strcmp(id, "sockets:") == 0) | |
3794 | sscanf(rem, "%*s%d", &s->socks); | |
3795 | else if (strcmp(id, "UDP:") == 0) | |
3796 | sscanf(rem, "%*s%d", &s->udp4); | |
3797 | else if (strcmp(id, "UDP6:") == 0) | |
3798 | sscanf(rem, "%*s%d", &s->udp6); | |
3799 | else if (strcmp(id, "RAW:") == 0) | |
3800 | sscanf(rem, "%*s%d", &s->raw4); | |
3801 | else if (strcmp(id, "RAW6:") == 0) | |
3802 | sscanf(rem, "%*s%d", &s->raw6); | |
3803 | else if (strcmp(id, "TCP6:") == 0) | |
3804 | sscanf(rem, "%*s%d", &s->tcp6_hashed); | |
3805 | else if (strcmp(id, "FRAG:") == 0) | |
3806 | sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem); | |
3807 | else if (strcmp(id, "FRAG6:") == 0) | |
3808 | sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem); | |
3809 | else if (strcmp(id, "TCP:") == 0) | |
3810 | sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d", | |
3811 | &s->tcp4_hashed, | |
3812 | &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem); | |
3813 | } | |
3814 | ||
055840f2 | 3815 | static int get_sockstat(struct ssummary *s) |
aba5acdf SH |
3816 | { |
3817 | char buf[256]; | |
3818 | FILE *fp; | |
3819 | ||
3820 | memset(s, 0, sizeof(*s)); | |
3821 | ||
ab01dbbb | 3822 | if ((fp = net_sockstat_open()) == NULL) |
aba5acdf | 3823 | return -1; |
acd1e437 | 3824 | while (fgets(buf, sizeof(buf), fp) != NULL) |
aba5acdf SH |
3825 | get_sockstat_line(buf, s); |
3826 | fclose(fp); | |
3827 | ||
ab01dbbb | 3828 | if ((fp = net_sockstat6_open()) == NULL) |
aba5acdf | 3829 | return 0; |
acd1e437 | 3830 | while (fgets(buf, sizeof(buf), fp) != NULL) |
aba5acdf SH |
3831 | get_sockstat_line(buf, s); |
3832 | fclose(fp); | |
3833 | ||
3834 | return 0; | |
3835 | } | |
3836 | ||
d1f28cf1 | 3837 | static int print_summary(void) |
aba5acdf | 3838 | { |
055840f2 | 3839 | struct ssummary s; |
2f938ce1 | 3840 | int tcp_estab; |
aba5acdf SH |
3841 | |
3842 | if (get_sockstat(&s) < 0) | |
3843 | perror("ss: get_sockstat"); | |
2f938ce1 | 3844 | if (get_snmp_int("Tcp:", "CurrEstab", &tcp_estab) < 0) |
aba5acdf SH |
3845 | perror("ss: get_snmpstat"); |
3846 | ||
a221d621 BL |
3847 | get_slabstat(&slabstat); |
3848 | ||
aba5acdf SH |
3849 | printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks); |
3850 | ||
3851 | printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n", | |
3852 | s.tcp_total + slabstat.tcp_syns + s.tcp_tws, | |
2f938ce1 | 3853 | tcp_estab, |
aba5acdf SH |
3854 | s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws), |
3855 | s.tcp_orphans, | |
3856 | slabstat.tcp_syns, | |
3857 | s.tcp_tws, slabstat.tcp_tws, | |
3858 | slabstat.tcp_ports | |
3859 | ); | |
3860 | ||
3861 | printf("\n"); | |
3862 | printf("Transport Total IP IPv6\n"); | |
3863 | printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-"); | |
3864 | printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6); | |
3865 | printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6); | |
3866 | printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed); | |
ae665a52 | 3867 | printf("INET %-9d %-9d %-9d\n", |
aba5acdf SH |
3868 | s.raw4+s.udp4+s.tcp4_hashed+ |
3869 | s.raw6+s.udp6+s.tcp6_hashed, | |
3870 | s.raw4+s.udp4+s.tcp4_hashed, | |
3871 | s.raw6+s.udp6+s.tcp6_hashed); | |
3872 | printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6); | |
3873 | ||
3874 | printf("\n"); | |
3875 | ||
3876 | return 0; | |
3877 | } | |
3878 | ||
7a96e199 | 3879 | static void _usage(FILE *dest) |
aba5acdf | 3880 | { |
7a96e199 | 3881 | fprintf(dest, |
aba5acdf SH |
3882 | "Usage: ss [ OPTIONS ]\n" |
3883 | " ss [ OPTIONS ] [ FILTER ]\n" | |
ff041f16 VK |
3884 | " -h, --help this message\n" |
3885 | " -V, --version output version information\n" | |
3886 | " -n, --numeric don't resolve service names\n" | |
ab61159a | 3887 | " -r, --resolve resolve host names\n" |
ff041f16 VK |
3888 | " -a, --all display all sockets\n" |
3889 | " -l, --listening display listening sockets\n" | |
ab61159a SH |
3890 | " -o, --options show timer information\n" |
3891 | " -e, --extended show detailed socket information\n" | |
3892 | " -m, --memory show socket memory usage\n" | |
ff041f16 VK |
3893 | " -p, --processes show process using socket\n" |
3894 | " -i, --info show internal TCP information\n" | |
3895 | " -s, --summary show socket usage summary\n" | |
b0f01cf6 | 3896 | " -b, --bpf show bpf filter socket information\n" |
6885e3bf | 3897 | " -E, --events continually display sockets as they are destroyed\n" |
ff041f16 VK |
3898 | " -Z, --context display process SELinux security contexts\n" |
3899 | " -z, --contexts display process and socket SELinux security contexts\n" | |
95ce04bc | 3900 | " -N, --net switch to the specified network namespace name\n" |
ab61159a SH |
3901 | "\n" |
3902 | " -4, --ipv4 display only IP version 4 sockets\n" | |
3903 | " -6, --ipv6 display only IP version 6 sockets\n" | |
ff041f16 VK |
3904 | " -0, --packet display PACKET sockets\n" |
3905 | " -t, --tcp display only TCP sockets\n" | |
f89d46ad | 3906 | " -S, --sctp display only SCTP sockets\n" |
ff041f16 VK |
3907 | " -u, --udp display only UDP sockets\n" |
3908 | " -d, --dccp display only DCCP sockets\n" | |
3909 | " -w, --raw display only RAW sockets\n" | |
3910 | " -x, --unix display only Unix domain sockets\n" | |
ab61159a | 3911 | " -f, --family=FAMILY display sockets of type FAMILY\n" |
ebef3174 | 3912 | " FAMILY := {inet|inet6|link|unix|netlink|help}\n" |
ab61159a | 3913 | "\n" |
fb2594c1 | 3914 | " -K, --kill forcibly close sockets, display what was closed\n" |
7a4559f6 | 3915 | " -H, --no-header Suppress header line\n" |
fb2594c1 | 3916 | "\n" |
583de149 | 3917 | " -A, --query=QUERY, --socket=QUERY\n" |
56dee73e | 3918 | " QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n" |
ab61159a | 3919 | "\n" |
583de149 | 3920 | " -D, --diag=FILE Dump raw information about TCP sockets to FILE\n" |
ab61159a | 3921 | " -F, --filter=FILE read filter information from FILE\n" |
ff041f16 VK |
3922 | " FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n" |
3923 | " STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n" | |
ae4e21c9 | 3924 | " TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listening|closing}\n" |
ff041f16 VK |
3925 | " connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n" |
3926 | " synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n" | |
3927 | " bucket := {syn-recv|time-wait}\n" | |
ae4e21c9 | 3928 | " big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listening|closing}\n" |
ab61159a | 3929 | ); |
7a96e199 AH |
3930 | } |
3931 | ||
3932 | static void help(void) __attribute__((noreturn)); | |
3933 | static void help(void) | |
3934 | { | |
3935 | _usage(stdout); | |
3936 | exit(0); | |
3937 | } | |
3938 | ||
3939 | static void usage(void) __attribute__((noreturn)); | |
3940 | static void usage(void) | |
3941 | { | |
3942 | _usage(stderr); | |
aba5acdf SH |
3943 | exit(-1); |
3944 | } | |
3945 | ||
3946 | ||
d1f28cf1 | 3947 | static int scan_state(const char *state) |
aba5acdf | 3948 | { |
b710a722 PS |
3949 | static const char * const sstate_namel[] = { |
3950 | "UNKNOWN", | |
3951 | [SS_ESTABLISHED] = "established", | |
3952 | [SS_SYN_SENT] = "syn-sent", | |
3953 | [SS_SYN_RECV] = "syn-recv", | |
3954 | [SS_FIN_WAIT1] = "fin-wait-1", | |
3955 | [SS_FIN_WAIT2] = "fin-wait-2", | |
3956 | [SS_TIME_WAIT] = "time-wait", | |
3957 | [SS_CLOSE] = "unconnected", | |
3958 | [SS_CLOSE_WAIT] = "close-wait", | |
3959 | [SS_LAST_ACK] = "last-ack", | |
3960 | [SS_LISTEN] = "listening", | |
3961 | [SS_CLOSING] = "closing", | |
3962 | }; | |
aba5acdf | 3963 | int i; |
acd1e437 | 3964 | |
aba5acdf SH |
3965 | if (strcasecmp(state, "close") == 0 || |
3966 | strcasecmp(state, "closed") == 0) | |
3967 | return (1<<SS_CLOSE); | |
3968 | if (strcasecmp(state, "syn-rcv") == 0) | |
3969 | return (1<<SS_SYN_RECV); | |
1a5bad5a | 3970 | if (strcasecmp(state, "established") == 0) |
aba5acdf SH |
3971 | return (1<<SS_ESTABLISHED); |
3972 | if (strcasecmp(state, "all") == 0) | |
3973 | return SS_ALL; | |
3974 | if (strcasecmp(state, "connected") == 0) | |
3975 | return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)); | |
1a5bad5a | 3976 | if (strcasecmp(state, "synchronized") == 0) |
aba5acdf SH |
3977 | return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT)); |
3978 | if (strcasecmp(state, "bucket") == 0) | |
3979 | return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT); | |
3980 | if (strcasecmp(state, "big") == 0) | |
3981 | return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT)); | |
acd1e437 | 3982 | for (i = 0; i < SS_MAX; i++) { |
1a5bad5a | 3983 | if (strcasecmp(state, sstate_namel[i]) == 0) |
aba5acdf SH |
3984 | return (1<<i); |
3985 | } | |
9db7bf15 VK |
3986 | |
3987 | fprintf(stderr, "ss: wrong state name: %s\n", state); | |
3988 | exit(-1); | |
aba5acdf SH |
3989 | } |
3990 | ||
ab61159a SH |
3991 | static const struct option long_opts[] = { |
3992 | { "numeric", 0, 0, 'n' }, | |
3993 | { "resolve", 0, 0, 'r' }, | |
3994 | { "options", 0, 0, 'o' }, | |
3995 | { "extended", 0, 0, 'e' }, | |
3996 | { "memory", 0, 0, 'm' }, | |
3997 | { "info", 0, 0, 'i' }, | |
3998 | { "processes", 0, 0, 'p' }, | |
372c30d2 | 3999 | { "bpf", 0, 0, 'b' }, |
6885e3bf | 4000 | { "events", 0, 0, 'E' }, |
351efcde | 4001 | { "dccp", 0, 0, 'd' }, |
ab61159a | 4002 | { "tcp", 0, 0, 't' }, |
f89d46ad | 4003 | { "sctp", 0, 0, 'S' }, |
ab61159a SH |
4004 | { "udp", 0, 0, 'u' }, |
4005 | { "raw", 0, 0, 'w' }, | |
4006 | { "unix", 0, 0, 'x' }, | |
4007 | { "all", 0, 0, 'a' }, | |
4008 | { "listening", 0, 0, 'l' }, | |
4009 | { "ipv4", 0, 0, '4' }, | |
4010 | { "ipv6", 0, 0, '6' }, | |
4011 | { "packet", 0, 0, '0' }, | |
4012 | { "family", 1, 0, 'f' }, | |
4013 | { "socket", 1, 0, 'A' }, | |
583de149 | 4014 | { "query", 1, 0, 'A' }, |
c3f346b0 | 4015 | { "summary", 0, 0, 's' }, |
583de149 | 4016 | { "diag", 1, 0, 'D' }, |
ab61159a SH |
4017 | { "filter", 1, 0, 'F' }, |
4018 | { "version", 0, 0, 'V' }, | |
4019 | { "help", 0, 0, 'h' }, | |
116ac927 RH |
4020 | { "context", 0, 0, 'Z' }, |
4021 | { "contexts", 0, 0, 'z' }, | |
95ce04bc | 4022 | { "net", 1, 0, 'N' }, |
fb2594c1 | 4023 | { "kill", 0, 0, 'K' }, |
7a4559f6 | 4024 | { "no-header", 0, 0, 'H' }, |
ab61159a | 4025 | { 0 } |
ae665a52 | 4026 | |
ab61159a SH |
4027 | }; |
4028 | ||
aba5acdf SH |
4029 | int main(int argc, char *argv[]) |
4030 | { | |
aba5acdf SH |
4031 | int saw_states = 0; |
4032 | int saw_query = 0; | |
4033 | int do_summary = 0; | |
7d105b56 | 4034 | const char *dump_tcpdiag = NULL; |
aba5acdf SH |
4035 | FILE *filter_fp = NULL; |
4036 | int ch; | |
9db7bf15 | 4037 | int state_filter = 0; |
95eafe43 | 4038 | int addrp_width, screen_width = 80; |
aba5acdf | 4039 | |
168d97f9 SH |
4040 | while ((ch = getopt_long(argc, argv, |
4041 | "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHS", | |
ab61159a | 4042 | long_opts, NULL)) != EOF) { |
acd1e437 | 4043 | switch (ch) { |
aba5acdf SH |
4044 | case 'n': |
4045 | resolve_services = 0; | |
4046 | break; | |
4047 | case 'r': | |
4048 | resolve_hosts = 1; | |
4049 | break; | |
4050 | case 'o': | |
4051 | show_options = 1; | |
4052 | break; | |
4053 | case 'e': | |
4054 | show_options = 1; | |
4055 | show_details++; | |
4056 | break; | |
4057 | case 'm': | |
4058 | show_mem = 1; | |
4059 | break; | |
4060 | case 'i': | |
4061 | show_tcpinfo = 1; | |
4062 | break; | |
4063 | case 'p': | |
4064 | show_users++; | |
fbc0f876 | 4065 | user_ent_hash_build(); |
aba5acdf | 4066 | break; |
372c30d2 ND |
4067 | case 'b': |
4068 | show_options = 1; | |
4069 | show_bpf++; | |
4070 | break; | |
6885e3bf CG |
4071 | case 'E': |
4072 | follow_events = 1; | |
4073 | break; | |
351efcde | 4074 | case 'd': |
57ff5a10 | 4075 | filter_db_set(¤t_filter, DCCP_DB); |
351efcde | 4076 | break; |
aba5acdf | 4077 | case 't': |
57ff5a10 | 4078 | filter_db_set(¤t_filter, TCP_DB); |
aba5acdf | 4079 | break; |
f89d46ad PS |
4080 | case 'S': |
4081 | filter_db_set(¤t_filter, SCTP_DB); | |
4082 | break; | |
aba5acdf | 4083 | case 'u': |
57ff5a10 | 4084 | filter_db_set(¤t_filter, UDP_DB); |
aba5acdf SH |
4085 | break; |
4086 | case 'w': | |
57ff5a10 | 4087 | filter_db_set(¤t_filter, RAW_DB); |
aba5acdf SH |
4088 | break; |
4089 | case 'x': | |
9db7bf15 | 4090 | filter_af_set(¤t_filter, AF_UNIX); |
aba5acdf SH |
4091 | break; |
4092 | case 'a': | |
9db7bf15 | 4093 | state_filter = SS_ALL; |
aba5acdf SH |
4094 | break; |
4095 | case 'l': | |
9db7bf15 | 4096 | state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE); |
aba5acdf SH |
4097 | break; |
4098 | case '4': | |
9db7bf15 | 4099 | filter_af_set(¤t_filter, AF_INET); |
aba5acdf SH |
4100 | break; |
4101 | case '6': | |
9db7bf15 | 4102 | filter_af_set(¤t_filter, AF_INET6); |
aba5acdf SH |
4103 | break; |
4104 | case '0': | |
9db7bf15 | 4105 | filter_af_set(¤t_filter, AF_PACKET); |
aba5acdf SH |
4106 | break; |
4107 | case 'f': | |
4108 | if (strcmp(optarg, "inet") == 0) | |
9db7bf15 | 4109 | filter_af_set(¤t_filter, AF_INET); |
aba5acdf | 4110 | else if (strcmp(optarg, "inet6") == 0) |
9db7bf15 | 4111 | filter_af_set(¤t_filter, AF_INET6); |
aba5acdf | 4112 | else if (strcmp(optarg, "link") == 0) |
9db7bf15 | 4113 | filter_af_set(¤t_filter, AF_PACKET); |
aba5acdf | 4114 | else if (strcmp(optarg, "unix") == 0) |
9db7bf15 | 4115 | filter_af_set(¤t_filter, AF_UNIX); |
aba5acdf | 4116 | else if (strcmp(optarg, "netlink") == 0) |
9db7bf15 | 4117 | filter_af_set(¤t_filter, AF_NETLINK); |
aba5acdf | 4118 | else if (strcmp(optarg, "help") == 0) |
7a96e199 | 4119 | help(); |
aba5acdf | 4120 | else { |
9db7bf15 VK |
4121 | fprintf(stderr, "ss: \"%s\" is invalid family\n", |
4122 | optarg); | |
aba5acdf SH |
4123 | usage(); |
4124 | } | |
4125 | break; | |
4126 | case 'A': | |
4127 | { | |
4128 | char *p, *p1; | |
acd1e437 | 4129 | |
aba5acdf SH |
4130 | if (!saw_query) { |
4131 | current_filter.dbs = 0; | |
7f9dddbe | 4132 | state_filter = state_filter ? |
acd1e437 | 4133 | state_filter : SS_CONN; |
aba5acdf SH |
4134 | saw_query = 1; |
4135 | do_default = 0; | |
4136 | } | |
4137 | p = p1 = optarg; | |
4138 | do { | |
4139 | if ((p1 = strchr(p, ',')) != NULL) | |
ae665a52 | 4140 | *p1 = 0; |
aba5acdf | 4141 | if (strcmp(p, "all") == 0) { |
57ff5a10 | 4142 | filter_default_dbs(¤t_filter); |
aba5acdf | 4143 | } else if (strcmp(p, "inet") == 0) { |
57ff5a10 VK |
4144 | filter_db_set(¤t_filter, UDP_DB); |
4145 | filter_db_set(¤t_filter, DCCP_DB); | |
4146 | filter_db_set(¤t_filter, TCP_DB); | |
f89d46ad | 4147 | filter_db_set(¤t_filter, SCTP_DB); |
57ff5a10 | 4148 | filter_db_set(¤t_filter, RAW_DB); |
aba5acdf | 4149 | } else if (strcmp(p, "udp") == 0) { |
57ff5a10 | 4150 | filter_db_set(¤t_filter, UDP_DB); |
351efcde | 4151 | } else if (strcmp(p, "dccp") == 0) { |
57ff5a10 | 4152 | filter_db_set(¤t_filter, DCCP_DB); |
aba5acdf | 4153 | } else if (strcmp(p, "tcp") == 0) { |
57ff5a10 | 4154 | filter_db_set(¤t_filter, TCP_DB); |
f89d46ad PS |
4155 | } else if (strcmp(p, "sctp") == 0) { |
4156 | filter_db_set(¤t_filter, SCTP_DB); | |
aba5acdf | 4157 | } else if (strcmp(p, "raw") == 0) { |
57ff5a10 | 4158 | filter_db_set(¤t_filter, RAW_DB); |
aba5acdf | 4159 | } else if (strcmp(p, "unix") == 0) { |
57ff5a10 VK |
4160 | filter_db_set(¤t_filter, UNIX_ST_DB); |
4161 | filter_db_set(¤t_filter, UNIX_DG_DB); | |
4162 | filter_db_set(¤t_filter, UNIX_SQ_DB); | |
1a5bad5a | 4163 | } else if (strcasecmp(p, "unix_stream") == 0 || |
aba5acdf | 4164 | strcmp(p, "u_str") == 0) { |
57ff5a10 | 4165 | filter_db_set(¤t_filter, UNIX_ST_DB); |
1a5bad5a | 4166 | } else if (strcasecmp(p, "unix_dgram") == 0 || |
aba5acdf | 4167 | strcmp(p, "u_dgr") == 0) { |
57ff5a10 | 4168 | filter_db_set(¤t_filter, UNIX_DG_DB); |
30b669d7 MY |
4169 | } else if (strcasecmp(p, "unix_seqpacket") == 0 || |
4170 | strcmp(p, "u_seq") == 0) { | |
57ff5a10 | 4171 | filter_db_set(¤t_filter, UNIX_SQ_DB); |
aba5acdf | 4172 | } else if (strcmp(p, "packet") == 0) { |
57ff5a10 VK |
4173 | filter_db_set(¤t_filter, PACKET_R_DB); |
4174 | filter_db_set(¤t_filter, PACKET_DG_DB); | |
aba5acdf SH |
4175 | } else if (strcmp(p, "packet_raw") == 0 || |
4176 | strcmp(p, "p_raw") == 0) { | |
57ff5a10 | 4177 | filter_db_set(¤t_filter, PACKET_R_DB); |
aba5acdf SH |
4178 | } else if (strcmp(p, "packet_dgram") == 0 || |
4179 | strcmp(p, "p_dgr") == 0) { | |
57ff5a10 | 4180 | filter_db_set(¤t_filter, PACKET_DG_DB); |
aba5acdf | 4181 | } else if (strcmp(p, "netlink") == 0) { |
57ff5a10 | 4182 | filter_db_set(¤t_filter, NETLINK_DB); |
aba5acdf SH |
4183 | } else { |
4184 | fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p); | |
4185 | usage(); | |
4186 | } | |
4187 | p = p1 + 1; | |
4188 | } while (p1); | |
4189 | break; | |
4190 | } | |
4191 | case 's': | |
4192 | do_summary = 1; | |
4193 | break; | |
4194 | case 'D': | |
4195 | dump_tcpdiag = optarg; | |
4196 | break; | |
4197 | case 'F': | |
4198 | if (filter_fp) { | |
4199 | fprintf(stderr, "More than one filter file\n"); | |
4200 | exit(-1); | |
4201 | } | |
4202 | if (optarg[0] == '-') | |
4203 | filter_fp = stdin; | |
4204 | else | |
4205 | filter_fp = fopen(optarg, "r"); | |
4206 | if (!filter_fp) { | |
4207 | perror("fopen filter file"); | |
4208 | exit(-1); | |
4209 | } | |
4210 | break; | |
4211 | case 'v': | |
4212 | case 'V': | |
4213 | printf("ss utility, iproute2-ss%s\n", SNAPSHOT); | |
4214 | exit(0); | |
116ac927 RH |
4215 | case 'z': |
4216 | show_sock_ctx++; | |
36df1a6e | 4217 | /* fall through */ |
116ac927 RH |
4218 | case 'Z': |
4219 | if (is_selinux_enabled() <= 0) { | |
4220 | fprintf(stderr, "ss: SELinux is not enabled.\n"); | |
4221 | exit(1); | |
4222 | } | |
4223 | show_proc_ctx++; | |
4224 | user_ent_hash_build(); | |
4225 | break; | |
95ce04bc VK |
4226 | case 'N': |
4227 | if (netns_switch(optarg)) | |
4228 | exit(1); | |
4229 | break; | |
fb2594c1 LC |
4230 | case 'K': |
4231 | current_filter.kill = 1; | |
4232 | break; | |
7a4559f6 DA |
4233 | case 'H': |
4234 | show_header = 0; | |
4235 | break; | |
aba5acdf | 4236 | case 'h': |
7a96e199 | 4237 | help(); |
f73105ab | 4238 | case '?': |
aba5acdf SH |
4239 | default: |
4240 | usage(); | |
4241 | } | |
4242 | } | |
4243 | ||
4244 | argc -= optind; | |
4245 | argv += optind; | |
4246 | ||
aba5acdf SH |
4247 | if (do_summary) { |
4248 | print_summary(); | |
4249 | if (do_default && argc == 0) | |
4250 | exit(0); | |
4251 | } | |
4252 | ||
aba5acdf SH |
4253 | while (argc > 0) { |
4254 | if (strcmp(*argv, "state") == 0) { | |
4255 | NEXT_ARG(); | |
4256 | if (!saw_states) | |
9db7bf15 VK |
4257 | state_filter = 0; |
4258 | state_filter |= scan_state(*argv); | |
aba5acdf SH |
4259 | saw_states = 1; |
4260 | } else if (strcmp(*argv, "exclude") == 0 || | |
4261 | strcmp(*argv, "excl") == 0) { | |
4262 | NEXT_ARG(); | |
4263 | if (!saw_states) | |
9db7bf15 VK |
4264 | state_filter = SS_ALL; |
4265 | state_filter &= ~scan_state(*argv); | |
aba5acdf SH |
4266 | saw_states = 1; |
4267 | } else { | |
aba5acdf SH |
4268 | break; |
4269 | } | |
4270 | argc--; argv++; | |
4271 | } | |
4272 | ||
9db7bf15 VK |
4273 | if (do_default) { |
4274 | state_filter = state_filter ? state_filter : SS_CONN; | |
4275 | filter_default_dbs(¤t_filter); | |
9db7bf15 VK |
4276 | } |
4277 | ||
57ff5a10 VK |
4278 | filter_states_set(¤t_filter, state_filter); |
4279 | filter_merge_defaults(¤t_filter); | |
4280 | ||
9db7bf15 | 4281 | if (resolve_services && resolve_hosts && |
168d97f9 | 4282 | (current_filter.dbs & (UNIX_DBM|INET_L4_DBM))) |
9db7bf15 VK |
4283 | init_service_resolver(); |
4284 | ||
9db7bf15 VK |
4285 | if (current_filter.dbs == 0) { |
4286 | fprintf(stderr, "ss: no socket tables to show with such filter.\n"); | |
4287 | exit(0); | |
4288 | } | |
4289 | if (current_filter.families == 0) { | |
4290 | fprintf(stderr, "ss: no families to show with such filter.\n"); | |
4291 | exit(0); | |
4292 | } | |
aba5acdf SH |
4293 | if (current_filter.states == 0) { |
4294 | fprintf(stderr, "ss: no socket states to show with such filter.\n"); | |
4295 | exit(0); | |
4296 | } | |
4297 | ||
4298 | if (dump_tcpdiag) { | |
4299 | FILE *dump_fp = stdout; | |
acd1e437 | 4300 | |
aba5acdf SH |
4301 | if (!(current_filter.dbs & (1<<TCP_DB))) { |
4302 | fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n"); | |
4303 | exit(0); | |
4304 | } | |
4305 | if (dump_tcpdiag[0] != '-') { | |
4306 | dump_fp = fopen(dump_tcpdiag, "w"); | |
4307 | if (!dump_tcpdiag) { | |
4308 | perror("fopen dump file"); | |
4309 | exit(-1); | |
4310 | } | |
4311 | } | |
3fe5b534 | 4312 | inet_show_netlink(¤t_filter, dump_fp, IPPROTO_TCP); |
aba5acdf SH |
4313 | fflush(dump_fp); |
4314 | exit(0); | |
4315 | } | |
4316 | ||
1527a17e VK |
4317 | if (ssfilter_parse(¤t_filter.f, argc, argv, filter_fp)) |
4318 | usage(); | |
4319 | ||
aba5acdf SH |
4320 | netid_width = 0; |
4321 | if (current_filter.dbs&(current_filter.dbs-1)) | |
4322 | netid_width = 5; | |
4323 | ||
4324 | state_width = 0; | |
4325 | if (current_filter.states&(current_filter.states-1)) | |
4326 | state_width = 10; | |
4327 | ||
aba5acdf SH |
4328 | if (isatty(STDOUT_FILENO)) { |
4329 | struct winsize w; | |
4330 | ||
4331 | if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) { | |
4332 | if (w.ws_col > 0) | |
4333 | screen_width = w.ws_col; | |
4334 | } | |
4335 | } | |
4336 | ||
4337 | addrp_width = screen_width; | |
4338 | addrp_width -= netid_width+1; | |
4339 | addrp_width -= state_width+1; | |
4340 | addrp_width -= 14; | |
4341 | ||
4342 | if (addrp_width&1) { | |
4343 | if (netid_width) | |
4344 | netid_width++; | |
4345 | else if (state_width) | |
4346 | state_width++; | |
4347 | } | |
4348 | ||
4349 | addrp_width /= 2; | |
4350 | addrp_width--; | |
4351 | ||
4352 | serv_width = resolve_services ? 7 : 5; | |
4353 | ||
4354 | if (addrp_width < 15+serv_width+1) | |
4355 | addrp_width = 15+serv_width+1; | |
4356 | ||
ae665a52 | 4357 | addr_width = addrp_width - serv_width - 1; |
aba5acdf | 4358 | |
7a4559f6 DA |
4359 | if (show_header) { |
4360 | if (netid_width) | |
4361 | printf("%-*s ", netid_width, "Netid"); | |
4362 | if (state_width) | |
4363 | printf("%-*s ", state_width, "State"); | |
4364 | printf("%-6s %-6s ", "Recv-Q", "Send-Q"); | |
4365 | } | |
aba5acdf | 4366 | |
d68e00f7 | 4367 | /* Make enough space for the local/remote port field */ |
4368 | addr_width -= 13; | |
4369 | serv_width += 13; | |
2dc85485 | 4370 | |
7a4559f6 DA |
4371 | if (show_header) { |
4372 | printf("%*s:%-*s %*s:%-*s\n", | |
4373 | addr_width, "Local Address", serv_width, "Port", | |
4374 | addr_width, "Peer Address", serv_width, "Port"); | |
4375 | } | |
aba5acdf | 4376 | |
aba5acdf SH |
4377 | fflush(stdout); |
4378 | ||
6885e3bf CG |
4379 | if (follow_events) |
4380 | exit(handle_follow_request(¤t_filter)); | |
4381 | ||
aba5acdf SH |
4382 | if (current_filter.dbs & (1<<NETLINK_DB)) |
4383 | netlink_show(¤t_filter); | |
4384 | if (current_filter.dbs & PACKET_DBM) | |
4385 | packet_show(¤t_filter); | |
4386 | if (current_filter.dbs & UNIX_DBM) | |
4387 | unix_show(¤t_filter); | |
4388 | if (current_filter.dbs & (1<<RAW_DB)) | |
4389 | raw_show(¤t_filter); | |
4390 | if (current_filter.dbs & (1<<UDP_DB)) | |
4391 | udp_show(¤t_filter); | |
4392 | if (current_filter.dbs & (1<<TCP_DB)) | |
3fe5b534 | 4393 | tcp_show(¤t_filter, IPPROTO_TCP); |
351efcde | 4394 | if (current_filter.dbs & (1<<DCCP_DB)) |
3fe5b534 | 4395 | tcp_show(¤t_filter, IPPROTO_DCCP); |
f89d46ad PS |
4396 | if (current_filter.dbs & (1<<SCTP_DB)) |
4397 | sctp_show(¤t_filter); | |
116ac927 RH |
4398 | |
4399 | if (show_users || show_proc_ctx || show_sock_ctx) | |
4400 | user_ent_destroy(); | |
4401 | ||
aba5acdf SH |
4402 | return 0; |
4403 | } |