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1 | /* | |
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 <fcntl.h> | |
16 | #include <sys/ioctl.h> | |
17 | #include <sys/socket.h> | |
18 | #include <sys/uio.h> | |
19 | #include <sys/sysmacros.h> | |
20 | #include <netinet/in.h> | |
21 | #include <string.h> | |
22 | #include <errno.h> | |
23 | #include <netdb.h> | |
24 | #include <arpa/inet.h> | |
25 | #include <dirent.h> | |
26 | #include <fnmatch.h> | |
27 | #include <getopt.h> | |
28 | #include <stdbool.h> | |
29 | #include <limits.h> | |
30 | #include <stdarg.h> | |
31 | ||
32 | #include "ss_util.h" | |
33 | #include "utils.h" | |
34 | #include "rt_names.h" | |
35 | #include "ll_map.h" | |
36 | #include "libnetlink.h" | |
37 | #include "namespace.h" | |
38 | #include "SNAPSHOT.h" | |
39 | #include "rt_names.h" | |
40 | #include "cg_map.h" | |
41 | ||
42 | #include <linux/tcp.h> | |
43 | #include <linux/unix_diag.h> | |
44 | #include <linux/netdevice.h> /* for MAX_ADDR_LEN */ | |
45 | #include <linux/filter.h> | |
46 | #include <linux/xdp_diag.h> | |
47 | #include <linux/packet_diag.h> | |
48 | #include <linux/netlink_diag.h> | |
49 | #include <linux/sctp.h> | |
50 | #include <linux/vm_sockets_diag.h> | |
51 | #include <linux/net.h> | |
52 | #include <linux/tipc.h> | |
53 | #include <linux/tipc_netlink.h> | |
54 | #include <linux/tipc_sockets_diag.h> | |
55 | #include <linux/tls.h> | |
56 | #include <linux/mptcp.h> | |
57 | ||
58 | /* AF_VSOCK/PF_VSOCK is only provided since glibc 2.18 */ | |
59 | #ifndef PF_VSOCK | |
60 | #define PF_VSOCK 40 | |
61 | #endif | |
62 | #ifndef AF_VSOCK | |
63 | #define AF_VSOCK PF_VSOCK | |
64 | #endif | |
65 | ||
66 | #define BUF_CHUNK (1024 * 1024) /* Buffer chunk allocation size */ | |
67 | #define BUF_CHUNKS_MAX 5 /* Maximum number of allocated buffer chunks */ | |
68 | #define LEN_ALIGN(x) (((x) + 1) & ~1) | |
69 | ||
70 | #if HAVE_SELINUX | |
71 | #include <selinux/selinux.h> | |
72 | #else | |
73 | /* Stubs for SELinux functions */ | |
74 | static int is_selinux_enabled(void) | |
75 | { | |
76 | return -1; | |
77 | } | |
78 | ||
79 | static int getpidcon(pid_t pid, char **context) | |
80 | { | |
81 | *context = NULL; | |
82 | return -1; | |
83 | } | |
84 | ||
85 | static int getfilecon(char *path, char **context) | |
86 | { | |
87 | *context = NULL; | |
88 | return -1; | |
89 | } | |
90 | ||
91 | static int security_get_initial_context(char *name, char **context) | |
92 | { | |
93 | *context = NULL; | |
94 | return -1; | |
95 | } | |
96 | #endif | |
97 | ||
98 | int preferred_family = AF_UNSPEC; | |
99 | static int show_options; | |
100 | int show_details; | |
101 | static int show_users; | |
102 | static int show_mem; | |
103 | static int show_tcpinfo; | |
104 | static int show_bpf; | |
105 | static int show_proc_ctx; | |
106 | static int show_sock_ctx; | |
107 | static int show_header = 1; | |
108 | static int follow_events; | |
109 | static int sctp_ino; | |
110 | static int show_tipcinfo; | |
111 | static int show_tos; | |
112 | static int show_cgroup; | |
113 | int oneline; | |
114 | ||
115 | enum col_id { | |
116 | COL_NETID, | |
117 | COL_STATE, | |
118 | COL_RECVQ, | |
119 | COL_SENDQ, | |
120 | COL_ADDR, | |
121 | COL_SERV, | |
122 | COL_RADDR, | |
123 | COL_RSERV, | |
124 | COL_EXT, | |
125 | COL_PROC, | |
126 | COL_MAX | |
127 | }; | |
128 | ||
129 | enum col_align { | |
130 | ALIGN_LEFT, | |
131 | ALIGN_CENTER, | |
132 | ALIGN_RIGHT | |
133 | }; | |
134 | ||
135 | struct column { | |
136 | const enum col_align align; | |
137 | const char *header; | |
138 | const char *ldelim; | |
139 | int disabled; | |
140 | int width; /* Calculated, including additional layout spacing */ | |
141 | int max_len; /* Measured maximum field length in this column */ | |
142 | }; | |
143 | ||
144 | static struct column columns[] = { | |
145 | { ALIGN_LEFT, "Netid", "", 0, 0, 0 }, | |
146 | { ALIGN_LEFT, "State", " ", 0, 0, 0 }, | |
147 | { ALIGN_LEFT, "Recv-Q", " ", 0, 0, 0 }, | |
148 | { ALIGN_LEFT, "Send-Q", " ", 0, 0, 0 }, | |
149 | { ALIGN_RIGHT, "Local Address:", " ", 0, 0, 0 }, | |
150 | { ALIGN_LEFT, "Port", "", 0, 0, 0 }, | |
151 | { ALIGN_RIGHT, "Peer Address:", " ", 0, 0, 0 }, | |
152 | { ALIGN_LEFT, "Port", "", 0, 0, 0 }, | |
153 | { ALIGN_LEFT, "Process", "", 0, 0, 0 }, | |
154 | { ALIGN_LEFT, "", "", 0, 0, 0 }, | |
155 | }; | |
156 | ||
157 | static struct column *current_field = columns; | |
158 | ||
159 | /* Output buffer: chained chunks of BUF_CHUNK bytes. Each field is written to | |
160 | * the buffer as a variable size token. A token consists of a 16 bits length | |
161 | * field, followed by a string which is not NULL-terminated. | |
162 | * | |
163 | * A new chunk is allocated and linked when the current chunk doesn't have | |
164 | * enough room to store the current token as a whole. | |
165 | */ | |
166 | struct buf_chunk { | |
167 | struct buf_chunk *next; /* Next chained chunk */ | |
168 | char *end; /* Current end of content */ | |
169 | char data[0]; | |
170 | }; | |
171 | ||
172 | struct buf_token { | |
173 | uint16_t len; /* Data length, excluding length descriptor */ | |
174 | char data[0]; | |
175 | }; | |
176 | ||
177 | static struct { | |
178 | struct buf_token *cur; /* Position of current token in chunk */ | |
179 | struct buf_chunk *head; /* First chunk */ | |
180 | struct buf_chunk *tail; /* Current chunk */ | |
181 | int chunks; /* Number of allocated chunks */ | |
182 | } buffer; | |
183 | ||
184 | static const char *TCP_PROTO = "tcp"; | |
185 | static const char *SCTP_PROTO = "sctp"; | |
186 | static const char *UDP_PROTO = "udp"; | |
187 | static const char *RAW_PROTO = "raw"; | |
188 | static const char *dg_proto; | |
189 | ||
190 | enum { | |
191 | TCP_DB, | |
192 | DCCP_DB, | |
193 | UDP_DB, | |
194 | RAW_DB, | |
195 | UNIX_DG_DB, | |
196 | UNIX_ST_DB, | |
197 | UNIX_SQ_DB, | |
198 | PACKET_DG_DB, | |
199 | PACKET_R_DB, | |
200 | NETLINK_DB, | |
201 | SCTP_DB, | |
202 | VSOCK_ST_DB, | |
203 | VSOCK_DG_DB, | |
204 | TIPC_DB, | |
205 | XDP_DB, | |
206 | MAX_DB | |
207 | }; | |
208 | ||
209 | #define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB)) | |
210 | #define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB)) | |
211 | #define ALL_DB ((1<<MAX_DB)-1) | |
212 | #define INET_L4_DBM ((1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB)|(1<<SCTP_DB)) | |
213 | #define INET_DBM (INET_L4_DBM | (1<<RAW_DB)) | |
214 | #define VSOCK_DBM ((1<<VSOCK_ST_DB)|(1<<VSOCK_DG_DB)) | |
215 | ||
216 | enum { | |
217 | SS_UNKNOWN, | |
218 | SS_ESTABLISHED, | |
219 | SS_SYN_SENT, | |
220 | SS_SYN_RECV, | |
221 | SS_FIN_WAIT1, | |
222 | SS_FIN_WAIT2, | |
223 | SS_TIME_WAIT, | |
224 | SS_CLOSE, | |
225 | SS_CLOSE_WAIT, | |
226 | SS_LAST_ACK, | |
227 | SS_LISTEN, | |
228 | SS_CLOSING, | |
229 | SS_MAX | |
230 | }; | |
231 | ||
232 | enum { | |
233 | SCTP_STATE_CLOSED = 0, | |
234 | SCTP_STATE_COOKIE_WAIT = 1, | |
235 | SCTP_STATE_COOKIE_ECHOED = 2, | |
236 | SCTP_STATE_ESTABLISHED = 3, | |
237 | SCTP_STATE_SHUTDOWN_PENDING = 4, | |
238 | SCTP_STATE_SHUTDOWN_SENT = 5, | |
239 | SCTP_STATE_SHUTDOWN_RECEIVED = 6, | |
240 | SCTP_STATE_SHUTDOWN_ACK_SENT = 7, | |
241 | }; | |
242 | ||
243 | #define SS_ALL ((1 << SS_MAX) - 1) | |
244 | #define SS_CONN (SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV))) | |
245 | #define TIPC_SS_CONN ((1<<SS_ESTABLISHED)|(1<<SS_LISTEN)|(1<<SS_CLOSE)) | |
246 | ||
247 | #include "ssfilter.h" | |
248 | ||
249 | struct filter { | |
250 | int dbs; | |
251 | int states; | |
252 | uint64_t families; | |
253 | struct ssfilter *f; | |
254 | bool kill; | |
255 | struct rtnl_handle *rth_for_killing; | |
256 | }; | |
257 | ||
258 | #define FAMILY_MASK(family) ((uint64_t)1 << (family)) | |
259 | ||
260 | static const struct filter default_dbs[MAX_DB] = { | |
261 | [TCP_DB] = { | |
262 | .states = SS_CONN, | |
263 | .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6), | |
264 | }, | |
265 | [DCCP_DB] = { | |
266 | .states = SS_CONN, | |
267 | .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6), | |
268 | }, | |
269 | [UDP_DB] = { | |
270 | .states = (1 << SS_ESTABLISHED), | |
271 | .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6), | |
272 | }, | |
273 | [RAW_DB] = { | |
274 | .states = (1 << SS_ESTABLISHED), | |
275 | .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6), | |
276 | }, | |
277 | [UNIX_DG_DB] = { | |
278 | .states = (1 << SS_CLOSE), | |
279 | .families = FAMILY_MASK(AF_UNIX), | |
280 | }, | |
281 | [UNIX_ST_DB] = { | |
282 | .states = SS_CONN, | |
283 | .families = FAMILY_MASK(AF_UNIX), | |
284 | }, | |
285 | [UNIX_SQ_DB] = { | |
286 | .states = SS_CONN, | |
287 | .families = FAMILY_MASK(AF_UNIX), | |
288 | }, | |
289 | [PACKET_DG_DB] = { | |
290 | .states = (1 << SS_CLOSE), | |
291 | .families = FAMILY_MASK(AF_PACKET), | |
292 | }, | |
293 | [PACKET_R_DB] = { | |
294 | .states = (1 << SS_CLOSE), | |
295 | .families = FAMILY_MASK(AF_PACKET), | |
296 | }, | |
297 | [NETLINK_DB] = { | |
298 | .states = (1 << SS_CLOSE), | |
299 | .families = FAMILY_MASK(AF_NETLINK), | |
300 | }, | |
301 | [SCTP_DB] = { | |
302 | .states = SS_CONN, | |
303 | .families = FAMILY_MASK(AF_INET) | FAMILY_MASK(AF_INET6), | |
304 | }, | |
305 | [VSOCK_ST_DB] = { | |
306 | .states = SS_CONN, | |
307 | .families = FAMILY_MASK(AF_VSOCK), | |
308 | }, | |
309 | [VSOCK_DG_DB] = { | |
310 | .states = SS_CONN, | |
311 | .families = FAMILY_MASK(AF_VSOCK), | |
312 | }, | |
313 | [TIPC_DB] = { | |
314 | .states = TIPC_SS_CONN, | |
315 | .families = FAMILY_MASK(AF_TIPC), | |
316 | }, | |
317 | [XDP_DB] = { | |
318 | .states = (1 << SS_CLOSE), | |
319 | .families = FAMILY_MASK(AF_XDP), | |
320 | }, | |
321 | }; | |
322 | ||
323 | static const struct filter default_afs[AF_MAX] = { | |
324 | [AF_INET] = { | |
325 | .dbs = INET_DBM, | |
326 | .states = SS_CONN, | |
327 | }, | |
328 | [AF_INET6] = { | |
329 | .dbs = INET_DBM, | |
330 | .states = SS_CONN, | |
331 | }, | |
332 | [AF_UNIX] = { | |
333 | .dbs = UNIX_DBM, | |
334 | .states = SS_CONN, | |
335 | }, | |
336 | [AF_PACKET] = { | |
337 | .dbs = PACKET_DBM, | |
338 | .states = (1 << SS_CLOSE), | |
339 | }, | |
340 | [AF_NETLINK] = { | |
341 | .dbs = (1 << NETLINK_DB), | |
342 | .states = (1 << SS_CLOSE), | |
343 | }, | |
344 | [AF_VSOCK] = { | |
345 | .dbs = VSOCK_DBM, | |
346 | .states = SS_CONN, | |
347 | }, | |
348 | [AF_TIPC] = { | |
349 | .dbs = (1 << TIPC_DB), | |
350 | .states = TIPC_SS_CONN, | |
351 | }, | |
352 | [AF_XDP] = { | |
353 | .dbs = (1 << XDP_DB), | |
354 | .states = (1 << SS_CLOSE), | |
355 | }, | |
356 | }; | |
357 | ||
358 | static int do_default = 1; | |
359 | static struct filter current_filter; | |
360 | ||
361 | static void filter_db_set(struct filter *f, int db, bool enable) | |
362 | { | |
363 | if (enable) { | |
364 | f->states |= default_dbs[db].states; | |
365 | f->dbs |= 1 << db; | |
366 | } else { | |
367 | f->dbs &= ~(1 << db); | |
368 | } | |
369 | do_default = 0; | |
370 | } | |
371 | ||
372 | static int filter_db_parse(struct filter *f, const char *s) | |
373 | { | |
374 | const struct { | |
375 | const char *name; | |
376 | int dbs[MAX_DB + 1]; | |
377 | } db_name_tbl[] = { | |
378 | #define ENTRY(name, ...) { #name, { __VA_ARGS__, MAX_DB } } | |
379 | ENTRY(all, UDP_DB, DCCP_DB, TCP_DB, RAW_DB, | |
380 | UNIX_ST_DB, UNIX_DG_DB, UNIX_SQ_DB, | |
381 | PACKET_R_DB, PACKET_DG_DB, NETLINK_DB, | |
382 | SCTP_DB, VSOCK_ST_DB, VSOCK_DG_DB, XDP_DB), | |
383 | ENTRY(inet, UDP_DB, DCCP_DB, TCP_DB, SCTP_DB, RAW_DB), | |
384 | ENTRY(udp, UDP_DB), | |
385 | ENTRY(dccp, DCCP_DB), | |
386 | ENTRY(tcp, TCP_DB), | |
387 | ENTRY(sctp, SCTP_DB), | |
388 | ENTRY(raw, RAW_DB), | |
389 | ENTRY(unix, UNIX_ST_DB, UNIX_DG_DB, UNIX_SQ_DB), | |
390 | ENTRY(unix_stream, UNIX_ST_DB), | |
391 | ENTRY(u_str, UNIX_ST_DB), /* alias for unix_stream */ | |
392 | ENTRY(unix_dgram, UNIX_DG_DB), | |
393 | ENTRY(u_dgr, UNIX_DG_DB), /* alias for unix_dgram */ | |
394 | ENTRY(unix_seqpacket, UNIX_SQ_DB), | |
395 | ENTRY(u_seq, UNIX_SQ_DB), /* alias for unix_seqpacket */ | |
396 | ENTRY(packet, PACKET_R_DB, PACKET_DG_DB), | |
397 | ENTRY(packet_raw, PACKET_R_DB), | |
398 | ENTRY(p_raw, PACKET_R_DB), /* alias for packet_raw */ | |
399 | ENTRY(packet_dgram, PACKET_DG_DB), | |
400 | ENTRY(p_dgr, PACKET_DG_DB), /* alias for packet_dgram */ | |
401 | ENTRY(netlink, NETLINK_DB), | |
402 | ENTRY(vsock, VSOCK_ST_DB, VSOCK_DG_DB), | |
403 | ENTRY(vsock_stream, VSOCK_ST_DB), | |
404 | ENTRY(v_str, VSOCK_ST_DB), /* alias for vsock_stream */ | |
405 | ENTRY(vsock_dgram, VSOCK_DG_DB), | |
406 | ENTRY(v_dgr, VSOCK_DG_DB), /* alias for vsock_dgram */ | |
407 | ENTRY(xdp, XDP_DB), | |
408 | #undef ENTRY | |
409 | }; | |
410 | bool enable = true; | |
411 | unsigned int i; | |
412 | const int *dbp; | |
413 | ||
414 | if (s[0] == '!') { | |
415 | enable = false; | |
416 | s++; | |
417 | } | |
418 | for (i = 0; i < ARRAY_SIZE(db_name_tbl); i++) { | |
419 | if (strcmp(s, db_name_tbl[i].name)) | |
420 | continue; | |
421 | for (dbp = db_name_tbl[i].dbs; *dbp != MAX_DB; dbp++) | |
422 | filter_db_set(f, *dbp, enable); | |
423 | return 0; | |
424 | } | |
425 | return -1; | |
426 | } | |
427 | ||
428 | static void filter_af_set(struct filter *f, int af) | |
429 | { | |
430 | f->states |= default_afs[af].states; | |
431 | f->families |= FAMILY_MASK(af); | |
432 | do_default = 0; | |
433 | preferred_family = af; | |
434 | } | |
435 | ||
436 | static int filter_af_get(struct filter *f, int af) | |
437 | { | |
438 | return !!(f->families & FAMILY_MASK(af)); | |
439 | } | |
440 | ||
441 | static void filter_states_set(struct filter *f, int states) | |
442 | { | |
443 | if (states) | |
444 | f->states = states; | |
445 | } | |
446 | ||
447 | static void filter_merge_defaults(struct filter *f) | |
448 | { | |
449 | int db; | |
450 | int af; | |
451 | ||
452 | for (db = 0; db < MAX_DB; db++) { | |
453 | if (!(f->dbs & (1 << db))) | |
454 | continue; | |
455 | ||
456 | if (!(default_dbs[db].families & f->families)) | |
457 | f->families |= default_dbs[db].families; | |
458 | } | |
459 | for (af = 0; af < AF_MAX; af++) { | |
460 | if (!(f->families & FAMILY_MASK(af))) | |
461 | continue; | |
462 | ||
463 | if (!(default_afs[af].dbs & f->dbs)) | |
464 | f->dbs |= default_afs[af].dbs; | |
465 | } | |
466 | } | |
467 | ||
468 | static FILE *generic_proc_open(const char *env, const char *name) | |
469 | { | |
470 | const char *p = getenv(env); | |
471 | char store[128]; | |
472 | ||
473 | if (!p) { | |
474 | p = getenv("PROC_ROOT") ? : "/proc"; | |
475 | snprintf(store, sizeof(store)-1, "%s/%s", p, name); | |
476 | p = store; | |
477 | } | |
478 | ||
479 | return fopen(p, "r"); | |
480 | } | |
481 | #define net_tcp_open() generic_proc_open("PROC_NET_TCP", "net/tcp") | |
482 | #define net_tcp6_open() generic_proc_open("PROC_NET_TCP6", "net/tcp6") | |
483 | #define net_udp_open() generic_proc_open("PROC_NET_UDP", "net/udp") | |
484 | #define net_udp6_open() generic_proc_open("PROC_NET_UDP6", "net/udp6") | |
485 | #define net_raw_open() generic_proc_open("PROC_NET_RAW", "net/raw") | |
486 | #define net_raw6_open() generic_proc_open("PROC_NET_RAW6", "net/raw6") | |
487 | #define net_unix_open() generic_proc_open("PROC_NET_UNIX", "net/unix") | |
488 | #define net_packet_open() generic_proc_open("PROC_NET_PACKET", \ | |
489 | "net/packet") | |
490 | #define net_netlink_open() generic_proc_open("PROC_NET_NETLINK", \ | |
491 | "net/netlink") | |
492 | #define net_sockstat_open() generic_proc_open("PROC_NET_SOCKSTAT", \ | |
493 | "net/sockstat") | |
494 | #define net_sockstat6_open() generic_proc_open("PROC_NET_SOCKSTAT6", \ | |
495 | "net/sockstat6") | |
496 | #define net_snmp_open() generic_proc_open("PROC_NET_SNMP", "net/snmp") | |
497 | #define ephemeral_ports_open() generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", \ | |
498 | "sys/net/ipv4/ip_local_port_range") | |
499 | ||
500 | struct user_ent { | |
501 | struct user_ent *next; | |
502 | unsigned int ino; | |
503 | int pid; | |
504 | int fd; | |
505 | char *process; | |
506 | char *process_ctx; | |
507 | char *socket_ctx; | |
508 | }; | |
509 | ||
510 | #define USER_ENT_HASH_SIZE 256 | |
511 | static struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE]; | |
512 | ||
513 | static int user_ent_hashfn(unsigned int ino) | |
514 | { | |
515 | int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino; | |
516 | ||
517 | return val & (USER_ENT_HASH_SIZE - 1); | |
518 | } | |
519 | ||
520 | static void user_ent_add(unsigned int ino, char *process, | |
521 | int pid, int fd, | |
522 | char *proc_ctx, | |
523 | char *sock_ctx) | |
524 | { | |
525 | struct user_ent *p, **pp; | |
526 | ||
527 | p = malloc(sizeof(struct user_ent)); | |
528 | if (!p) { | |
529 | fprintf(stderr, "ss: failed to malloc buffer\n"); | |
530 | abort(); | |
531 | } | |
532 | p->next = NULL; | |
533 | p->ino = ino; | |
534 | p->pid = pid; | |
535 | p->fd = fd; | |
536 | p->process = strdup(process); | |
537 | p->process_ctx = strdup(proc_ctx); | |
538 | p->socket_ctx = strdup(sock_ctx); | |
539 | ||
540 | pp = &user_ent_hash[user_ent_hashfn(ino)]; | |
541 | p->next = *pp; | |
542 | *pp = p; | |
543 | } | |
544 | ||
545 | static void user_ent_destroy(void) | |
546 | { | |
547 | struct user_ent *p, *p_next; | |
548 | int cnt = 0; | |
549 | ||
550 | while (cnt != USER_ENT_HASH_SIZE) { | |
551 | p = user_ent_hash[cnt]; | |
552 | while (p) { | |
553 | free(p->process); | |
554 | free(p->process_ctx); | |
555 | free(p->socket_ctx); | |
556 | p_next = p->next; | |
557 | free(p); | |
558 | p = p_next; | |
559 | } | |
560 | cnt++; | |
561 | } | |
562 | } | |
563 | ||
564 | static void user_ent_hash_build(void) | |
565 | { | |
566 | const char *root = getenv("PROC_ROOT") ? : "/proc/"; | |
567 | struct dirent *d; | |
568 | char name[1024]; | |
569 | int nameoff; | |
570 | DIR *dir; | |
571 | char *pid_context; | |
572 | char *sock_context; | |
573 | const char *no_ctx = "unavailable"; | |
574 | static int user_ent_hash_build_init; | |
575 | ||
576 | /* If show_users & show_proc_ctx set only do this once */ | |
577 | if (user_ent_hash_build_init != 0) | |
578 | return; | |
579 | ||
580 | user_ent_hash_build_init = 1; | |
581 | ||
582 | strlcpy(name, root, sizeof(name)); | |
583 | ||
584 | if (strlen(name) == 0 || name[strlen(name)-1] != '/') | |
585 | strcat(name, "/"); | |
586 | ||
587 | nameoff = strlen(name); | |
588 | ||
589 | dir = opendir(name); | |
590 | if (!dir) | |
591 | return; | |
592 | ||
593 | while ((d = readdir(dir)) != NULL) { | |
594 | struct dirent *d1; | |
595 | char process[16]; | |
596 | char *p; | |
597 | int pid, pos; | |
598 | DIR *dir1; | |
599 | char crap; | |
600 | ||
601 | if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1) | |
602 | continue; | |
603 | ||
604 | if (getpidcon(pid, &pid_context) != 0) | |
605 | pid_context = strdup(no_ctx); | |
606 | ||
607 | snprintf(name + nameoff, sizeof(name) - nameoff, "%d/fd/", pid); | |
608 | pos = strlen(name); | |
609 | if ((dir1 = opendir(name)) == NULL) { | |
610 | free(pid_context); | |
611 | continue; | |
612 | } | |
613 | ||
614 | process[0] = '\0'; | |
615 | p = process; | |
616 | ||
617 | while ((d1 = readdir(dir1)) != NULL) { | |
618 | const char *pattern = "socket:["; | |
619 | unsigned int ino; | |
620 | char lnk[64]; | |
621 | int fd; | |
622 | ssize_t link_len; | |
623 | char tmp[1024]; | |
624 | ||
625 | if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1) | |
626 | continue; | |
627 | ||
628 | snprintf(name+pos, sizeof(name) - pos, "%d", fd); | |
629 | ||
630 | link_len = readlink(name, lnk, sizeof(lnk)-1); | |
631 | if (link_len == -1) | |
632 | continue; | |
633 | lnk[link_len] = '\0'; | |
634 | ||
635 | if (strncmp(lnk, pattern, strlen(pattern))) | |
636 | continue; | |
637 | ||
638 | sscanf(lnk, "socket:[%u]", &ino); | |
639 | ||
640 | snprintf(tmp, sizeof(tmp), "%s/%d/fd/%s", | |
641 | root, pid, d1->d_name); | |
642 | ||
643 | if (getfilecon(tmp, &sock_context) <= 0) | |
644 | sock_context = strdup(no_ctx); | |
645 | ||
646 | if (*p == '\0') { | |
647 | FILE *fp; | |
648 | ||
649 | snprintf(tmp, sizeof(tmp), "%s/%d/stat", | |
650 | root, pid); | |
651 | if ((fp = fopen(tmp, "r")) != NULL) { | |
652 | if (fscanf(fp, "%*d (%[^)])", p) < 1) | |
653 | ; /* ignore */ | |
654 | fclose(fp); | |
655 | } | |
656 | } | |
657 | user_ent_add(ino, p, pid, fd, | |
658 | pid_context, sock_context); | |
659 | free(sock_context); | |
660 | } | |
661 | free(pid_context); | |
662 | closedir(dir1); | |
663 | } | |
664 | closedir(dir); | |
665 | } | |
666 | ||
667 | enum entry_types { | |
668 | USERS, | |
669 | PROC_CTX, | |
670 | PROC_SOCK_CTX | |
671 | }; | |
672 | ||
673 | #define ENTRY_BUF_SIZE 512 | |
674 | static int find_entry(unsigned int ino, char **buf, int type) | |
675 | { | |
676 | struct user_ent *p; | |
677 | int cnt = 0; | |
678 | char *ptr; | |
679 | char *new_buf; | |
680 | int len, new_buf_len; | |
681 | int buf_used = 0; | |
682 | int buf_len = 0; | |
683 | ||
684 | if (!ino) | |
685 | return 0; | |
686 | ||
687 | p = user_ent_hash[user_ent_hashfn(ino)]; | |
688 | ptr = *buf = NULL; | |
689 | while (p) { | |
690 | if (p->ino != ino) | |
691 | goto next; | |
692 | ||
693 | while (1) { | |
694 | ptr = *buf + buf_used; | |
695 | switch (type) { | |
696 | case USERS: | |
697 | len = snprintf(ptr, buf_len - buf_used, | |
698 | "(\"%s\",pid=%d,fd=%d),", | |
699 | p->process, p->pid, p->fd); | |
700 | break; | |
701 | case PROC_CTX: | |
702 | len = snprintf(ptr, buf_len - buf_used, | |
703 | "(\"%s\",pid=%d,proc_ctx=%s,fd=%d),", | |
704 | p->process, p->pid, | |
705 | p->process_ctx, p->fd); | |
706 | break; | |
707 | case PROC_SOCK_CTX: | |
708 | len = snprintf(ptr, buf_len - buf_used, | |
709 | "(\"%s\",pid=%d,proc_ctx=%s,fd=%d,sock_ctx=%s),", | |
710 | p->process, p->pid, | |
711 | p->process_ctx, p->fd, | |
712 | p->socket_ctx); | |
713 | break; | |
714 | default: | |
715 | fprintf(stderr, "ss: invalid type: %d\n", type); | |
716 | abort(); | |
717 | } | |
718 | ||
719 | if (len < 0 || len >= buf_len - buf_used) { | |
720 | new_buf_len = buf_len + ENTRY_BUF_SIZE; | |
721 | new_buf = realloc(*buf, new_buf_len); | |
722 | if (!new_buf) { | |
723 | fprintf(stderr, "ss: failed to malloc buffer\n"); | |
724 | abort(); | |
725 | } | |
726 | *buf = new_buf; | |
727 | buf_len = new_buf_len; | |
728 | continue; | |
729 | } else { | |
730 | buf_used += len; | |
731 | break; | |
732 | } | |
733 | } | |
734 | cnt++; | |
735 | next: | |
736 | p = p->next; | |
737 | } | |
738 | if (buf_used) { | |
739 | ptr = *buf + buf_used; | |
740 | ptr[-1] = '\0'; | |
741 | } | |
742 | return cnt; | |
743 | } | |
744 | ||
745 | static unsigned long long cookie_sk_get(const uint32_t *cookie) | |
746 | { | |
747 | return (((unsigned long long)cookie[1] << 31) << 1) | cookie[0]; | |
748 | } | |
749 | ||
750 | static const char *sctp_sstate_name[] = { | |
751 | [SCTP_STATE_CLOSED] = "CLOSED", | |
752 | [SCTP_STATE_COOKIE_WAIT] = "COOKIE_WAIT", | |
753 | [SCTP_STATE_COOKIE_ECHOED] = "COOKIE_ECHOED", | |
754 | [SCTP_STATE_ESTABLISHED] = "ESTAB", | |
755 | [SCTP_STATE_SHUTDOWN_PENDING] = "SHUTDOWN_PENDING", | |
756 | [SCTP_STATE_SHUTDOWN_SENT] = "SHUTDOWN_SENT", | |
757 | [SCTP_STATE_SHUTDOWN_RECEIVED] = "SHUTDOWN_RECEIVED", | |
758 | [SCTP_STATE_SHUTDOWN_ACK_SENT] = "ACK_SENT", | |
759 | }; | |
760 | ||
761 | static const char * const stype_nameg[] = { | |
762 | "UNKNOWN", | |
763 | [SOCK_STREAM] = "STREAM", | |
764 | [SOCK_DGRAM] = "DGRAM", | |
765 | [SOCK_RDM] = "RDM", | |
766 | [SOCK_SEQPACKET] = "SEQPACKET", | |
767 | }; | |
768 | ||
769 | struct sockstat { | |
770 | struct sockstat *next; | |
771 | unsigned int type; | |
772 | uint16_t prot; | |
773 | uint16_t raw_prot; | |
774 | inet_prefix local; | |
775 | inet_prefix remote; | |
776 | int lport; | |
777 | int rport; | |
778 | int state; | |
779 | int rq, wq; | |
780 | unsigned int ino; | |
781 | unsigned int uid; | |
782 | int refcnt; | |
783 | unsigned int iface; | |
784 | unsigned long long sk; | |
785 | char *name; | |
786 | char *peer_name; | |
787 | __u32 mark; | |
788 | __u64 cgroup_id; | |
789 | }; | |
790 | ||
791 | struct dctcpstat { | |
792 | unsigned int ce_state; | |
793 | unsigned int alpha; | |
794 | unsigned int ab_ecn; | |
795 | unsigned int ab_tot; | |
796 | bool enabled; | |
797 | }; | |
798 | ||
799 | struct tcpstat { | |
800 | struct sockstat ss; | |
801 | unsigned int timer; | |
802 | unsigned int timeout; | |
803 | int probes; | |
804 | char cong_alg[16]; | |
805 | double rto, ato, rtt, rttvar; | |
806 | int qack, ssthresh, backoff; | |
807 | double send_bps; | |
808 | int snd_wscale; | |
809 | int rcv_wscale; | |
810 | int mss; | |
811 | int rcv_mss; | |
812 | int advmss; | |
813 | unsigned int pmtu; | |
814 | unsigned int cwnd; | |
815 | unsigned int lastsnd; | |
816 | unsigned int lastrcv; | |
817 | unsigned int lastack; | |
818 | double pacing_rate; | |
819 | double pacing_rate_max; | |
820 | double delivery_rate; | |
821 | unsigned long long bytes_acked; | |
822 | unsigned long long bytes_received; | |
823 | unsigned int segs_out; | |
824 | unsigned int segs_in; | |
825 | unsigned int data_segs_out; | |
826 | unsigned int data_segs_in; | |
827 | unsigned int unacked; | |
828 | unsigned int retrans; | |
829 | unsigned int retrans_total; | |
830 | unsigned int lost; | |
831 | unsigned int sacked; | |
832 | unsigned int fackets; | |
833 | unsigned int reordering; | |
834 | unsigned int not_sent; | |
835 | unsigned int delivered; | |
836 | unsigned int delivered_ce; | |
837 | unsigned int dsack_dups; | |
838 | unsigned int reord_seen; | |
839 | double rcv_rtt; | |
840 | double min_rtt; | |
841 | int rcv_space; | |
842 | unsigned int rcv_ssthresh; | |
843 | unsigned long long busy_time; | |
844 | unsigned long long rwnd_limited; | |
845 | unsigned long long sndbuf_limited; | |
846 | unsigned long long bytes_sent; | |
847 | unsigned long long bytes_retrans; | |
848 | bool has_ts_opt; | |
849 | bool has_sack_opt; | |
850 | bool has_ecn_opt; | |
851 | bool has_ecnseen_opt; | |
852 | bool has_fastopen_opt; | |
853 | bool has_wscale_opt; | |
854 | bool app_limited; | |
855 | struct dctcpstat *dctcp; | |
856 | struct tcp_bbr_info *bbr_info; | |
857 | }; | |
858 | ||
859 | /* SCTP assocs share the same inode number with their parent endpoint. So if we | |
860 | * have seen the inode number before, it must be an assoc instead of the next | |
861 | * endpoint. */ | |
862 | static bool is_sctp_assoc(struct sockstat *s, const char *sock_name) | |
863 | { | |
864 | if (strcmp(sock_name, "sctp")) | |
865 | return false; | |
866 | if (!sctp_ino || sctp_ino != s->ino) | |
867 | return false; | |
868 | return true; | |
869 | } | |
870 | ||
871 | static const char *unix_netid_name(int type) | |
872 | { | |
873 | switch (type) { | |
874 | case SOCK_STREAM: | |
875 | return "u_str"; | |
876 | case SOCK_SEQPACKET: | |
877 | return "u_seq"; | |
878 | case SOCK_DGRAM: | |
879 | default: | |
880 | return "u_dgr"; | |
881 | } | |
882 | } | |
883 | ||
884 | static const char *proto_name(int protocol) | |
885 | { | |
886 | switch (protocol) { | |
887 | case 0: | |
888 | return "raw"; | |
889 | case IPPROTO_UDP: | |
890 | return "udp"; | |
891 | case IPPROTO_TCP: | |
892 | return "tcp"; | |
893 | case IPPROTO_SCTP: | |
894 | return "sctp"; | |
895 | case IPPROTO_DCCP: | |
896 | return "dccp"; | |
897 | case IPPROTO_ICMPV6: | |
898 | return "icmp6"; | |
899 | } | |
900 | ||
901 | return "???"; | |
902 | } | |
903 | ||
904 | static const char *vsock_netid_name(int type) | |
905 | { | |
906 | switch (type) { | |
907 | case SOCK_STREAM: | |
908 | return "v_str"; | |
909 | case SOCK_DGRAM: | |
910 | return "v_dgr"; | |
911 | default: | |
912 | return "???"; | |
913 | } | |
914 | } | |
915 | ||
916 | static const char *tipc_netid_name(int type) | |
917 | { | |
918 | switch (type) { | |
919 | case SOCK_STREAM: | |
920 | return "ti_st"; | |
921 | case SOCK_DGRAM: | |
922 | return "ti_dg"; | |
923 | case SOCK_RDM: | |
924 | return "ti_rd"; | |
925 | case SOCK_SEQPACKET: | |
926 | return "ti_sq"; | |
927 | default: | |
928 | return "???"; | |
929 | } | |
930 | } | |
931 | ||
932 | /* Allocate and initialize a new buffer chunk */ | |
933 | static struct buf_chunk *buf_chunk_new(void) | |
934 | { | |
935 | struct buf_chunk *new = malloc(BUF_CHUNK); | |
936 | ||
937 | if (!new) | |
938 | abort(); | |
939 | ||
940 | new->next = NULL; | |
941 | ||
942 | /* This is also the last block */ | |
943 | buffer.tail = new; | |
944 | ||
945 | /* Next token will be stored at the beginning of chunk data area, and | |
946 | * its initial length is zero. | |
947 | */ | |
948 | buffer.cur = (struct buf_token *)new->data; | |
949 | buffer.cur->len = 0; | |
950 | ||
951 | new->end = buffer.cur->data; | |
952 | ||
953 | buffer.chunks++; | |
954 | ||
955 | return new; | |
956 | } | |
957 | ||
958 | /* Return available tail room in given chunk */ | |
959 | static int buf_chunk_avail(struct buf_chunk *chunk) | |
960 | { | |
961 | return BUF_CHUNK - offsetof(struct buf_chunk, data) - | |
962 | (chunk->end - chunk->data); | |
963 | } | |
964 | ||
965 | /* Update end pointer and token length, link new chunk if we hit the end of the | |
966 | * current one. Return -EAGAIN if we got a new chunk, caller has to print again. | |
967 | */ | |
968 | static int buf_update(int len) | |
969 | { | |
970 | struct buf_chunk *chunk = buffer.tail; | |
971 | struct buf_token *t = buffer.cur; | |
972 | ||
973 | /* Claim success if new content fits in the current chunk, and anyway | |
974 | * if this is the first token in the chunk: in the latter case, | |
975 | * allocating a new chunk won't help, so we'll just cut the output. | |
976 | */ | |
977 | if ((len < buf_chunk_avail(chunk) && len != -1 /* glibc < 2.0.6 */) || | |
978 | t == (struct buf_token *)chunk->data) { | |
979 | len = min(len, buf_chunk_avail(chunk)); | |
980 | ||
981 | /* Total field length can't exceed 2^16 bytes, cut as needed */ | |
982 | len = min(len, USHRT_MAX - t->len); | |
983 | ||
984 | chunk->end += len; | |
985 | t->len += len; | |
986 | return 0; | |
987 | } | |
988 | ||
989 | /* Content truncated, time to allocate more */ | |
990 | chunk->next = buf_chunk_new(); | |
991 | ||
992 | /* Copy current token over to new chunk, including length descriptor */ | |
993 | memcpy(chunk->next->data, t, sizeof(t->len) + t->len); | |
994 | chunk->next->end += t->len; | |
995 | ||
996 | /* Discard partially written field in old chunk */ | |
997 | chunk->end -= t->len + sizeof(t->len); | |
998 | ||
999 | return -EAGAIN; | |
1000 | } | |
1001 | ||
1002 | /* Append content to buffer as part of the current field */ | |
1003 | __attribute__((format(printf, 1, 2))) | |
1004 | static void out(const char *fmt, ...) | |
1005 | { | |
1006 | struct column *f = current_field; | |
1007 | va_list args; | |
1008 | char *pos; | |
1009 | int len; | |
1010 | ||
1011 | if (f->disabled) | |
1012 | return; | |
1013 | ||
1014 | if (!buffer.head) | |
1015 | buffer.head = buf_chunk_new(); | |
1016 | ||
1017 | again: /* Append to buffer: if we have a new chunk, print again */ | |
1018 | ||
1019 | pos = buffer.cur->data + buffer.cur->len; | |
1020 | va_start(args, fmt); | |
1021 | ||
1022 | /* Limit to tail room. If we hit the limit, buf_update() will tell us */ | |
1023 | len = vsnprintf(pos, buf_chunk_avail(buffer.tail), fmt, args); | |
1024 | va_end(args); | |
1025 | ||
1026 | if (buf_update(len)) | |
1027 | goto again; | |
1028 | } | |
1029 | ||
1030 | static int print_left_spacing(struct column *f, int stored, int printed) | |
1031 | { | |
1032 | int s; | |
1033 | ||
1034 | if (!f->width || f->align == ALIGN_LEFT) | |
1035 | return 0; | |
1036 | ||
1037 | s = f->width - stored - printed; | |
1038 | if (f->align == ALIGN_CENTER) | |
1039 | /* If count of total spacing is odd, shift right by one */ | |
1040 | s = (s + 1) / 2; | |
1041 | ||
1042 | if (s > 0) | |
1043 | return printf("%*c", s, ' '); | |
1044 | ||
1045 | return 0; | |
1046 | } | |
1047 | ||
1048 | static void print_right_spacing(struct column *f, int printed) | |
1049 | { | |
1050 | int s; | |
1051 | ||
1052 | if (!f->width || f->align == ALIGN_RIGHT) | |
1053 | return; | |
1054 | ||
1055 | s = f->width - printed; | |
1056 | if (f->align == ALIGN_CENTER) | |
1057 | s /= 2; | |
1058 | ||
1059 | if (s > 0) | |
1060 | printf("%*c", s, ' '); | |
1061 | } | |
1062 | ||
1063 | /* Done with field: update buffer pointer, start new token after current one */ | |
1064 | static void field_flush(struct column *f) | |
1065 | { | |
1066 | struct buf_chunk *chunk; | |
1067 | unsigned int pad; | |
1068 | ||
1069 | if (f->disabled) | |
1070 | return; | |
1071 | ||
1072 | chunk = buffer.tail; | |
1073 | pad = buffer.cur->len % 2; | |
1074 | ||
1075 | if (buffer.cur->len > f->max_len) | |
1076 | f->max_len = buffer.cur->len; | |
1077 | ||
1078 | /* We need a new chunk if we can't store the next length descriptor. | |
1079 | * Mind the gap between end of previous token and next aligned position | |
1080 | * for length descriptor. | |
1081 | */ | |
1082 | if (buf_chunk_avail(chunk) - pad < sizeof(buffer.cur->len)) { | |
1083 | chunk->end += pad; | |
1084 | chunk->next = buf_chunk_new(); | |
1085 | return; | |
1086 | } | |
1087 | ||
1088 | buffer.cur = (struct buf_token *)(buffer.cur->data + | |
1089 | LEN_ALIGN(buffer.cur->len)); | |
1090 | buffer.cur->len = 0; | |
1091 | buffer.tail->end = buffer.cur->data; | |
1092 | } | |
1093 | ||
1094 | static int field_is_last(struct column *f) | |
1095 | { | |
1096 | return f - columns == COL_MAX - 1; | |
1097 | } | |
1098 | ||
1099 | /* Get the next available token in the buffer starting from the current token */ | |
1100 | static struct buf_token *buf_token_next(struct buf_token *cur) | |
1101 | { | |
1102 | struct buf_chunk *chunk = buffer.tail; | |
1103 | ||
1104 | /* If we reached the end of chunk contents, get token from next chunk */ | |
1105 | if (cur->data + LEN_ALIGN(cur->len) == chunk->end) { | |
1106 | buffer.tail = chunk = chunk->next; | |
1107 | return chunk ? (struct buf_token *)chunk->data : NULL; | |
1108 | } | |
1109 | ||
1110 | return (struct buf_token *)(cur->data + LEN_ALIGN(cur->len)); | |
1111 | } | |
1112 | ||
1113 | /* Free up all allocated buffer chunks */ | |
1114 | static void buf_free_all(void) | |
1115 | { | |
1116 | struct buf_chunk *tmp; | |
1117 | ||
1118 | for (buffer.tail = buffer.head; buffer.tail; ) { | |
1119 | tmp = buffer.tail; | |
1120 | buffer.tail = buffer.tail->next; | |
1121 | free(tmp); | |
1122 | } | |
1123 | buffer.head = NULL; | |
1124 | buffer.chunks = 0; | |
1125 | } | |
1126 | ||
1127 | /* Get current screen width, returns -1 if TIOCGWINSZ fails */ | |
1128 | static int render_screen_width(void) | |
1129 | { | |
1130 | int width = -1; | |
1131 | ||
1132 | if (isatty(STDOUT_FILENO)) { | |
1133 | struct winsize w; | |
1134 | ||
1135 | if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) { | |
1136 | if (w.ws_col > 0) | |
1137 | width = w.ws_col; | |
1138 | } | |
1139 | } | |
1140 | ||
1141 | return width; | |
1142 | } | |
1143 | ||
1144 | /* Calculate column width from contents length. If columns don't fit on one | |
1145 | * line, break them into the least possible amount of lines and keep them | |
1146 | * aligned across lines. Available screen space is equally spread between fields | |
1147 | * as additional spacing. | |
1148 | */ | |
1149 | static void render_calc_width(void) | |
1150 | { | |
1151 | int screen_width, first, len = 0, linecols = 0; | |
1152 | struct column *c, *eol = columns - 1; | |
1153 | bool compact_output = false; | |
1154 | ||
1155 | screen_width = render_screen_width(); | |
1156 | if (screen_width == -1) { | |
1157 | screen_width = INT_MAX; | |
1158 | compact_output = true; | |
1159 | } | |
1160 | ||
1161 | /* First pass: set width for each column to measured content length */ | |
1162 | for (first = 1, c = columns; c - columns < COL_MAX; c++) { | |
1163 | if (c->disabled) | |
1164 | continue; | |
1165 | ||
1166 | if (!first && c->max_len) | |
1167 | c->width = c->max_len + strlen(c->ldelim); | |
1168 | else | |
1169 | c->width = c->max_len; | |
1170 | ||
1171 | /* But don't exceed screen size. If we exceed the screen size | |
1172 | * for even a single field, it will just start on a line of its | |
1173 | * own and then naturally wrap. | |
1174 | */ | |
1175 | c->width = min(c->width, screen_width); | |
1176 | ||
1177 | if (c->width) | |
1178 | first = 0; | |
1179 | } | |
1180 | ||
1181 | if (compact_output) { | |
1182 | /* Compact output, skip extending columns. */ | |
1183 | return; | |
1184 | } | |
1185 | ||
1186 | /* Second pass: find out newlines and distribute available spacing */ | |
1187 | for (c = columns; c - columns < COL_MAX; c++) { | |
1188 | int pad, spacing, rem, last; | |
1189 | struct column *tmp; | |
1190 | ||
1191 | if (!c->width) | |
1192 | continue; | |
1193 | ||
1194 | linecols++; | |
1195 | len += c->width; | |
1196 | ||
1197 | for (last = 1, tmp = c + 1; tmp - columns < COL_MAX; tmp++) { | |
1198 | if (tmp->width) { | |
1199 | last = 0; | |
1200 | break; | |
1201 | } | |
1202 | } | |
1203 | ||
1204 | if (!last && len < screen_width) { | |
1205 | /* Columns fit on screen so far, nothing to do yet */ | |
1206 | continue; | |
1207 | } | |
1208 | ||
1209 | if (len == screen_width) { | |
1210 | /* Exact fit, just start with new line */ | |
1211 | goto newline; | |
1212 | } | |
1213 | ||
1214 | if (len > screen_width) { | |
1215 | /* Screen width exceeded: go back one column */ | |
1216 | len -= c->width; | |
1217 | c--; | |
1218 | linecols--; | |
1219 | } | |
1220 | ||
1221 | /* Distribute remaining space to columns on this line */ | |
1222 | pad = screen_width - len; | |
1223 | spacing = pad / linecols; | |
1224 | rem = pad % linecols; | |
1225 | for (tmp = c; tmp > eol; tmp--) { | |
1226 | if (!tmp->width) | |
1227 | continue; | |
1228 | ||
1229 | tmp->width += spacing; | |
1230 | if (rem) { | |
1231 | tmp->width++; | |
1232 | rem--; | |
1233 | } | |
1234 | } | |
1235 | ||
1236 | newline: | |
1237 | /* Line break: reset line counters, mark end-of-line */ | |
1238 | eol = c; | |
1239 | len = 0; | |
1240 | linecols = 0; | |
1241 | } | |
1242 | } | |
1243 | ||
1244 | /* Render buffered output with spacing and delimiters, then free up buffers */ | |
1245 | static void render(void) | |
1246 | { | |
1247 | struct buf_token *token; | |
1248 | int printed, line_started = 0; | |
1249 | struct column *f; | |
1250 | ||
1251 | if (!buffer.head) | |
1252 | return; | |
1253 | ||
1254 | token = (struct buf_token *)buffer.head->data; | |
1255 | ||
1256 | /* Ensure end alignment of last token, it wasn't necessarily flushed */ | |
1257 | buffer.tail->end += buffer.cur->len % 2; | |
1258 | ||
1259 | render_calc_width(); | |
1260 | ||
1261 | /* Rewind and replay */ | |
1262 | buffer.tail = buffer.head; | |
1263 | ||
1264 | f = columns; | |
1265 | while (!f->width) | |
1266 | f++; | |
1267 | ||
1268 | while (token) { | |
1269 | /* Print left delimiter only if we already started a line */ | |
1270 | if (line_started++) | |
1271 | printed = printf("%s", f->ldelim); | |
1272 | else | |
1273 | printed = 0; | |
1274 | ||
1275 | /* Print field content from token data with spacing */ | |
1276 | printed += print_left_spacing(f, token->len, printed); | |
1277 | printed += fwrite(token->data, 1, token->len, stdout); | |
1278 | print_right_spacing(f, printed); | |
1279 | ||
1280 | /* Go to next non-empty field, deal with end-of-line */ | |
1281 | do { | |
1282 | if (field_is_last(f)) { | |
1283 | printf("\n"); | |
1284 | f = columns; | |
1285 | line_started = 0; | |
1286 | } else { | |
1287 | f++; | |
1288 | } | |
1289 | } while (f->disabled); | |
1290 | ||
1291 | token = buf_token_next(token); | |
1292 | } | |
1293 | /* Deal with final end-of-line when the last non-empty field printed | |
1294 | * is not the last field. | |
1295 | */ | |
1296 | if (line_started) | |
1297 | printf("\n"); | |
1298 | ||
1299 | buf_free_all(); | |
1300 | current_field = columns; | |
1301 | } | |
1302 | ||
1303 | /* Move to next field, and render buffer if we reached the maximum number of | |
1304 | * chunks, at the last field in a line. | |
1305 | */ | |
1306 | static void field_next(void) | |
1307 | { | |
1308 | if (field_is_last(current_field) && buffer.chunks >= BUF_CHUNKS_MAX) { | |
1309 | render(); | |
1310 | return; | |
1311 | } | |
1312 | ||
1313 | field_flush(current_field); | |
1314 | if (field_is_last(current_field)) | |
1315 | current_field = columns; | |
1316 | else | |
1317 | current_field++; | |
1318 | } | |
1319 | ||
1320 | /* Walk through fields and flush them until we reach the desired one */ | |
1321 | static void field_set(enum col_id id) | |
1322 | { | |
1323 | while (id != current_field - columns) | |
1324 | field_next(); | |
1325 | } | |
1326 | ||
1327 | /* Print header for all non-empty columns */ | |
1328 | static void print_header(void) | |
1329 | { | |
1330 | while (!field_is_last(current_field)) { | |
1331 | if (!current_field->disabled) | |
1332 | out("%s", current_field->header); | |
1333 | field_next(); | |
1334 | } | |
1335 | } | |
1336 | ||
1337 | static void sock_state_print(struct sockstat *s) | |
1338 | { | |
1339 | const char *sock_name; | |
1340 | static const char * const sstate_name[] = { | |
1341 | "UNKNOWN", | |
1342 | [SS_ESTABLISHED] = "ESTAB", | |
1343 | [SS_SYN_SENT] = "SYN-SENT", | |
1344 | [SS_SYN_RECV] = "SYN-RECV", | |
1345 | [SS_FIN_WAIT1] = "FIN-WAIT-1", | |
1346 | [SS_FIN_WAIT2] = "FIN-WAIT-2", | |
1347 | [SS_TIME_WAIT] = "TIME-WAIT", | |
1348 | [SS_CLOSE] = "UNCONN", | |
1349 | [SS_CLOSE_WAIT] = "CLOSE-WAIT", | |
1350 | [SS_LAST_ACK] = "LAST-ACK", | |
1351 | [SS_LISTEN] = "LISTEN", | |
1352 | [SS_CLOSING] = "CLOSING", | |
1353 | }; | |
1354 | ||
1355 | switch (s->local.family) { | |
1356 | case AF_UNIX: | |
1357 | sock_name = unix_netid_name(s->type); | |
1358 | break; | |
1359 | case AF_INET: | |
1360 | case AF_INET6: | |
1361 | sock_name = proto_name(s->type); | |
1362 | break; | |
1363 | case AF_PACKET: | |
1364 | sock_name = s->type == SOCK_RAW ? "p_raw" : "p_dgr"; | |
1365 | break; | |
1366 | case AF_NETLINK: | |
1367 | sock_name = "nl"; | |
1368 | break; | |
1369 | case AF_TIPC: | |
1370 | sock_name = tipc_netid_name(s->type); | |
1371 | break; | |
1372 | case AF_VSOCK: | |
1373 | sock_name = vsock_netid_name(s->type); | |
1374 | break; | |
1375 | case AF_XDP: | |
1376 | sock_name = "xdp"; | |
1377 | break; | |
1378 | default: | |
1379 | sock_name = "unknown"; | |
1380 | } | |
1381 | ||
1382 | if (is_sctp_assoc(s, sock_name)) { | |
1383 | field_set(COL_STATE); /* Empty Netid field */ | |
1384 | out("`- %s", sctp_sstate_name[s->state]); | |
1385 | } else { | |
1386 | field_set(COL_NETID); | |
1387 | out("%s", sock_name); | |
1388 | field_set(COL_STATE); | |
1389 | out("%s", sstate_name[s->state]); | |
1390 | } | |
1391 | ||
1392 | field_set(COL_RECVQ); | |
1393 | out("%-6d", s->rq); | |
1394 | field_set(COL_SENDQ); | |
1395 | out("%-6d", s->wq); | |
1396 | field_set(COL_ADDR); | |
1397 | } | |
1398 | ||
1399 | static void sock_details_print(struct sockstat *s) | |
1400 | { | |
1401 | if (s->uid) | |
1402 | out(" uid:%u", s->uid); | |
1403 | ||
1404 | out(" ino:%u", s->ino); | |
1405 | out(" sk:%llx", s->sk); | |
1406 | ||
1407 | if (s->mark) | |
1408 | out(" fwmark:0x%x", s->mark); | |
1409 | ||
1410 | if (s->cgroup_id) | |
1411 | out(" cgroup:%s", cg_id_to_path(s->cgroup_id)); | |
1412 | } | |
1413 | ||
1414 | static void sock_addr_print(const char *addr, char *delim, const char *port, | |
1415 | const char *ifname) | |
1416 | { | |
1417 | if (ifname) | |
1418 | out("%s" "%%" "%s%s", addr, ifname, delim); | |
1419 | else | |
1420 | out("%s%s", addr, delim); | |
1421 | ||
1422 | field_next(); | |
1423 | out("%s", port); | |
1424 | field_next(); | |
1425 | } | |
1426 | ||
1427 | static const char *print_ms_timer(unsigned int timeout) | |
1428 | { | |
1429 | static char buf[64]; | |
1430 | int secs, msecs, minutes; | |
1431 | ||
1432 | secs = timeout/1000; | |
1433 | minutes = secs/60; | |
1434 | secs = secs%60; | |
1435 | msecs = timeout%1000; | |
1436 | buf[0] = 0; | |
1437 | if (minutes) { | |
1438 | msecs = 0; | |
1439 | snprintf(buf, sizeof(buf)-16, "%dmin", minutes); | |
1440 | if (minutes > 9) | |
1441 | secs = 0; | |
1442 | } | |
1443 | if (secs) { | |
1444 | if (secs > 9) | |
1445 | msecs = 0; | |
1446 | sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec"); | |
1447 | } | |
1448 | if (msecs) | |
1449 | sprintf(buf+strlen(buf), "%03dms", msecs); | |
1450 | return buf; | |
1451 | } | |
1452 | ||
1453 | struct scache { | |
1454 | struct scache *next; | |
1455 | int port; | |
1456 | char *name; | |
1457 | const char *proto; | |
1458 | }; | |
1459 | ||
1460 | static struct scache *rlist; | |
1461 | ||
1462 | static void init_service_resolver(void) | |
1463 | { | |
1464 | char buf[128]; | |
1465 | FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r"); | |
1466 | ||
1467 | if (!fp) | |
1468 | return; | |
1469 | ||
1470 | if (!fgets(buf, sizeof(buf), fp)) { | |
1471 | pclose(fp); | |
1472 | return; | |
1473 | } | |
1474 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
1475 | unsigned int progn, port; | |
1476 | char proto[128], prog[128] = "rpc."; | |
1477 | struct scache *c; | |
1478 | ||
1479 | if (sscanf(buf, "%u %*d %s %u %s", | |
1480 | &progn, proto, &port, prog+4) != 4) | |
1481 | continue; | |
1482 | ||
1483 | if (!(c = malloc(sizeof(*c)))) | |
1484 | continue; | |
1485 | ||
1486 | c->port = port; | |
1487 | c->name = strdup(prog); | |
1488 | if (strcmp(proto, TCP_PROTO) == 0) | |
1489 | c->proto = TCP_PROTO; | |
1490 | else if (strcmp(proto, UDP_PROTO) == 0) | |
1491 | c->proto = UDP_PROTO; | |
1492 | else if (strcmp(proto, SCTP_PROTO) == 0) | |
1493 | c->proto = SCTP_PROTO; | |
1494 | else | |
1495 | c->proto = NULL; | |
1496 | c->next = rlist; | |
1497 | rlist = c; | |
1498 | } | |
1499 | pclose(fp); | |
1500 | } | |
1501 | ||
1502 | /* Even do not try default linux ephemeral port ranges: | |
1503 | * default /etc/services contains so much of useless crap | |
1504 | * wouldbe "allocated" to this area that resolution | |
1505 | * is really harmful. I shrug each time when seeing | |
1506 | * "socks" or "cfinger" in dumps. | |
1507 | */ | |
1508 | static int is_ephemeral(int port) | |
1509 | { | |
1510 | static int min = 0, max; | |
1511 | ||
1512 | if (!min) { | |
1513 | FILE *f = ephemeral_ports_open(); | |
1514 | ||
1515 | if (!f || fscanf(f, "%d %d", &min, &max) < 2) { | |
1516 | min = 1024; | |
1517 | max = 4999; | |
1518 | } | |
1519 | if (f) | |
1520 | fclose(f); | |
1521 | } | |
1522 | return port >= min && port <= max; | |
1523 | } | |
1524 | ||
1525 | ||
1526 | static const char *__resolve_service(int port) | |
1527 | { | |
1528 | struct scache *c; | |
1529 | ||
1530 | for (c = rlist; c; c = c->next) { | |
1531 | if (c->port == port && c->proto == dg_proto) | |
1532 | return c->name; | |
1533 | } | |
1534 | ||
1535 | if (!is_ephemeral(port)) { | |
1536 | static int notfirst; | |
1537 | struct servent *se; | |
1538 | ||
1539 | if (!notfirst) { | |
1540 | setservent(1); | |
1541 | notfirst = 1; | |
1542 | } | |
1543 | se = getservbyport(htons(port), dg_proto); | |
1544 | if (se) | |
1545 | return se->s_name; | |
1546 | } | |
1547 | ||
1548 | return NULL; | |
1549 | } | |
1550 | ||
1551 | #define SCACHE_BUCKETS 1024 | |
1552 | static struct scache *cache_htab[SCACHE_BUCKETS]; | |
1553 | ||
1554 | static const char *resolve_service(int port) | |
1555 | { | |
1556 | static char buf[128]; | |
1557 | struct scache *c; | |
1558 | const char *res; | |
1559 | int hash; | |
1560 | ||
1561 | if (port == 0) { | |
1562 | buf[0] = '*'; | |
1563 | buf[1] = 0; | |
1564 | return buf; | |
1565 | } | |
1566 | ||
1567 | if (numeric) | |
1568 | goto do_numeric; | |
1569 | ||
1570 | if (dg_proto == RAW_PROTO) | |
1571 | return inet_proto_n2a(port, buf, sizeof(buf)); | |
1572 | ||
1573 | ||
1574 | hash = (port^(((unsigned long)dg_proto)>>2)) % SCACHE_BUCKETS; | |
1575 | ||
1576 | for (c = cache_htab[hash]; c; c = c->next) { | |
1577 | if (c->port == port && c->proto == dg_proto) | |
1578 | goto do_cache; | |
1579 | } | |
1580 | ||
1581 | c = malloc(sizeof(*c)); | |
1582 | if (!c) | |
1583 | goto do_numeric; | |
1584 | res = __resolve_service(port); | |
1585 | c->port = port; | |
1586 | c->name = res ? strdup(res) : NULL; | |
1587 | c->proto = dg_proto; | |
1588 | c->next = cache_htab[hash]; | |
1589 | cache_htab[hash] = c; | |
1590 | ||
1591 | do_cache: | |
1592 | if (c->name) | |
1593 | return c->name; | |
1594 | ||
1595 | do_numeric: | |
1596 | sprintf(buf, "%u", port); | |
1597 | return buf; | |
1598 | } | |
1599 | ||
1600 | static void inet_addr_print(const inet_prefix *a, int port, | |
1601 | unsigned int ifindex, bool v6only) | |
1602 | { | |
1603 | char buf[1024]; | |
1604 | const char *ap = buf; | |
1605 | const char *ifname = NULL; | |
1606 | ||
1607 | if (a->family == AF_INET) { | |
1608 | ap = format_host(AF_INET, 4, a->data); | |
1609 | } else { | |
1610 | if (!v6only && | |
1611 | !memcmp(a->data, &in6addr_any, sizeof(in6addr_any))) { | |
1612 | buf[0] = '*'; | |
1613 | buf[1] = 0; | |
1614 | } else { | |
1615 | ap = format_host(a->family, 16, a->data); | |
1616 | ||
1617 | /* Numeric IPv6 addresses should be bracketed */ | |
1618 | if (strchr(ap, ':')) { | |
1619 | snprintf(buf, sizeof(buf), | |
1620 | "[%s]", ap); | |
1621 | ap = buf; | |
1622 | } | |
1623 | } | |
1624 | } | |
1625 | ||
1626 | if (ifindex) | |
1627 | ifname = ll_index_to_name(ifindex); | |
1628 | ||
1629 | sock_addr_print(ap, ":", resolve_service(port), ifname); | |
1630 | } | |
1631 | ||
1632 | struct aafilter { | |
1633 | inet_prefix addr; | |
1634 | int port; | |
1635 | unsigned int iface; | |
1636 | __u32 mark; | |
1637 | __u32 mask; | |
1638 | __u64 cgroup_id; | |
1639 | struct aafilter *next; | |
1640 | }; | |
1641 | ||
1642 | static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p, | |
1643 | int plen) | |
1644 | { | |
1645 | if (!inet_addr_match(a, p, plen)) | |
1646 | return 0; | |
1647 | ||
1648 | /* Cursed "v4 mapped" addresses: v4 mapped socket matches | |
1649 | * pure IPv4 rule, but v4-mapped rule selects only v4-mapped | |
1650 | * sockets. Fair? */ | |
1651 | if (p->family == AF_INET && a->family == AF_INET6) { | |
1652 | if (a->data[0] == 0 && a->data[1] == 0 && | |
1653 | a->data[2] == htonl(0xffff)) { | |
1654 | inet_prefix tmp = *a; | |
1655 | ||
1656 | tmp.data[0] = a->data[3]; | |
1657 | return inet_addr_match(&tmp, p, plen); | |
1658 | } | |
1659 | } | |
1660 | return 1; | |
1661 | } | |
1662 | ||
1663 | static int unix_match(const inet_prefix *a, const inet_prefix *p) | |
1664 | { | |
1665 | char *addr, *pattern; | |
1666 | ||
1667 | memcpy(&addr, a->data, sizeof(addr)); | |
1668 | memcpy(&pattern, p->data, sizeof(pattern)); | |
1669 | if (pattern == NULL) | |
1670 | return 1; | |
1671 | if (addr == NULL) | |
1672 | addr = ""; | |
1673 | return !fnmatch(pattern, addr, 0); | |
1674 | } | |
1675 | ||
1676 | static int run_ssfilter(struct ssfilter *f, struct sockstat *s) | |
1677 | { | |
1678 | switch (f->type) { | |
1679 | case SSF_S_AUTO: | |
1680 | { | |
1681 | if (s->local.family == AF_UNIX) { | |
1682 | char *p; | |
1683 | ||
1684 | memcpy(&p, s->local.data, sizeof(p)); | |
1685 | return p == NULL || (p[0] == '@' && strlen(p) == 6 && | |
1686 | strspn(p+1, "0123456789abcdef") == 5); | |
1687 | } | |
1688 | if (s->local.family == AF_PACKET) | |
1689 | return s->lport == 0 && s->local.data[0] == 0; | |
1690 | if (s->local.family == AF_NETLINK) | |
1691 | return s->lport < 0; | |
1692 | if (s->local.family == AF_VSOCK) | |
1693 | return s->lport > 1023; | |
1694 | ||
1695 | return is_ephemeral(s->lport); | |
1696 | } | |
1697 | case SSF_DCOND: | |
1698 | { | |
1699 | struct aafilter *a = (void *)f->pred; | |
1700 | ||
1701 | if (a->addr.family == AF_UNIX) | |
1702 | return unix_match(&s->remote, &a->addr); | |
1703 | if (a->port != -1 && a->port != s->rport) | |
1704 | return 0; | |
1705 | if (a->addr.bitlen) { | |
1706 | do { | |
1707 | if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen)) | |
1708 | return 1; | |
1709 | } while ((a = a->next) != NULL); | |
1710 | return 0; | |
1711 | } | |
1712 | return 1; | |
1713 | } | |
1714 | case SSF_SCOND: | |
1715 | { | |
1716 | struct aafilter *a = (void *)f->pred; | |
1717 | ||
1718 | if (a->addr.family == AF_UNIX) | |
1719 | return unix_match(&s->local, &a->addr); | |
1720 | if (a->port != -1 && a->port != s->lport) | |
1721 | return 0; | |
1722 | if (a->addr.bitlen) { | |
1723 | do { | |
1724 | if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen)) | |
1725 | return 1; | |
1726 | } while ((a = a->next) != NULL); | |
1727 | return 0; | |
1728 | } | |
1729 | return 1; | |
1730 | } | |
1731 | case SSF_D_GE: | |
1732 | { | |
1733 | struct aafilter *a = (void *)f->pred; | |
1734 | ||
1735 | return s->rport >= a->port; | |
1736 | } | |
1737 | case SSF_D_LE: | |
1738 | { | |
1739 | struct aafilter *a = (void *)f->pred; | |
1740 | ||
1741 | return s->rport <= a->port; | |
1742 | } | |
1743 | case SSF_S_GE: | |
1744 | { | |
1745 | struct aafilter *a = (void *)f->pred; | |
1746 | ||
1747 | return s->lport >= a->port; | |
1748 | } | |
1749 | case SSF_S_LE: | |
1750 | { | |
1751 | struct aafilter *a = (void *)f->pred; | |
1752 | ||
1753 | return s->lport <= a->port; | |
1754 | } | |
1755 | case SSF_DEVCOND: | |
1756 | { | |
1757 | struct aafilter *a = (void *)f->pred; | |
1758 | ||
1759 | return s->iface == a->iface; | |
1760 | } | |
1761 | case SSF_MARKMASK: | |
1762 | { | |
1763 | struct aafilter *a = (void *)f->pred; | |
1764 | ||
1765 | return (s->mark & a->mask) == a->mark; | |
1766 | } | |
1767 | case SSF_CGROUPCOND: | |
1768 | { | |
1769 | struct aafilter *a = (void *)f->pred; | |
1770 | ||
1771 | return s->cgroup_id == a->cgroup_id; | |
1772 | } | |
1773 | /* Yup. It is recursion. Sorry. */ | |
1774 | case SSF_AND: | |
1775 | return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s); | |
1776 | case SSF_OR: | |
1777 | return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s); | |
1778 | case SSF_NOT: | |
1779 | return !run_ssfilter(f->pred, s); | |
1780 | default: | |
1781 | abort(); | |
1782 | } | |
1783 | } | |
1784 | ||
1785 | /* Relocate external jumps by reloc. */ | |
1786 | static void ssfilter_patch(char *a, int len, int reloc) | |
1787 | { | |
1788 | while (len > 0) { | |
1789 | struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)a; | |
1790 | ||
1791 | if (op->no == len+4) | |
1792 | op->no += reloc; | |
1793 | len -= op->yes; | |
1794 | a += op->yes; | |
1795 | } | |
1796 | if (len < 0) | |
1797 | abort(); | |
1798 | } | |
1799 | ||
1800 | static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode) | |
1801 | { | |
1802 | switch (f->type) { | |
1803 | case SSF_S_AUTO: | |
1804 | { | |
1805 | if (!(*bytecode = malloc(4))) abort(); | |
1806 | ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 }; | |
1807 | return 4; | |
1808 | } | |
1809 | case SSF_DCOND: | |
1810 | case SSF_SCOND: | |
1811 | { | |
1812 | struct aafilter *a = (void *)f->pred; | |
1813 | struct aafilter *b; | |
1814 | char *ptr; | |
1815 | int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND); | |
1816 | int len = 0; | |
1817 | ||
1818 | for (b = a; b; b = b->next) { | |
1819 | len += 4 + sizeof(struct inet_diag_hostcond); | |
1820 | if (a->addr.family == AF_INET6) | |
1821 | len += 16; | |
1822 | else | |
1823 | len += 4; | |
1824 | if (b->next) | |
1825 | len += 4; | |
1826 | } | |
1827 | if (!(ptr = malloc(len))) abort(); | |
1828 | *bytecode = ptr; | |
1829 | for (b = a; b; b = b->next) { | |
1830 | struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr; | |
1831 | int alen = (a->addr.family == AF_INET6 ? 16 : 4); | |
1832 | int oplen = alen + 4 + sizeof(struct inet_diag_hostcond); | |
1833 | struct inet_diag_hostcond *cond = (struct inet_diag_hostcond *)(ptr+4); | |
1834 | ||
1835 | *op = (struct inet_diag_bc_op){ code, oplen, oplen+4 }; | |
1836 | cond->family = a->addr.family; | |
1837 | cond->port = a->port; | |
1838 | cond->prefix_len = a->addr.bitlen; | |
1839 | memcpy(cond->addr, a->addr.data, alen); | |
1840 | ptr += oplen; | |
1841 | if (b->next) { | |
1842 | op = (struct inet_diag_bc_op *)ptr; | |
1843 | *op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)}; | |
1844 | ptr += 4; | |
1845 | } | |
1846 | } | |
1847 | return ptr - *bytecode; | |
1848 | } | |
1849 | case SSF_D_GE: | |
1850 | { | |
1851 | struct aafilter *x = (void *)f->pred; | |
1852 | ||
1853 | if (!(*bytecode = malloc(8))) abort(); | |
1854 | ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 }; | |
1855 | ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
1856 | return 8; | |
1857 | } | |
1858 | case SSF_D_LE: | |
1859 | { | |
1860 | struct aafilter *x = (void *)f->pred; | |
1861 | ||
1862 | if (!(*bytecode = malloc(8))) abort(); | |
1863 | ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 }; | |
1864 | ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
1865 | return 8; | |
1866 | } | |
1867 | case SSF_S_GE: | |
1868 | { | |
1869 | struct aafilter *x = (void *)f->pred; | |
1870 | ||
1871 | if (!(*bytecode = malloc(8))) abort(); | |
1872 | ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 }; | |
1873 | ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
1874 | return 8; | |
1875 | } | |
1876 | case SSF_S_LE: | |
1877 | { | |
1878 | struct aafilter *x = (void *)f->pred; | |
1879 | ||
1880 | if (!(*bytecode = malloc(8))) abort(); | |
1881 | ((struct inet_diag_bc_op *)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 }; | |
1882 | ((struct inet_diag_bc_op *)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port }; | |
1883 | return 8; | |
1884 | } | |
1885 | ||
1886 | case SSF_AND: | |
1887 | { | |
1888 | char *a1 = NULL, *a2 = NULL, *a; | |
1889 | int l1, l2; | |
1890 | ||
1891 | l1 = ssfilter_bytecompile(f->pred, &a1); | |
1892 | l2 = ssfilter_bytecompile(f->post, &a2); | |
1893 | if (!l1 || !l2) { | |
1894 | free(a1); | |
1895 | free(a2); | |
1896 | return 0; | |
1897 | } | |
1898 | if (!(a = malloc(l1+l2))) abort(); | |
1899 | memcpy(a, a1, l1); | |
1900 | memcpy(a+l1, a2, l2); | |
1901 | free(a1); free(a2); | |
1902 | ssfilter_patch(a, l1, l2); | |
1903 | *bytecode = a; | |
1904 | return l1+l2; | |
1905 | } | |
1906 | case SSF_OR: | |
1907 | { | |
1908 | char *a1 = NULL, *a2 = NULL, *a; | |
1909 | int l1, l2; | |
1910 | ||
1911 | l1 = ssfilter_bytecompile(f->pred, &a1); | |
1912 | l2 = ssfilter_bytecompile(f->post, &a2); | |
1913 | if (!l1 || !l2) { | |
1914 | free(a1); | |
1915 | free(a2); | |
1916 | return 0; | |
1917 | } | |
1918 | if (!(a = malloc(l1+l2+4))) abort(); | |
1919 | memcpy(a, a1, l1); | |
1920 | memcpy(a+l1+4, a2, l2); | |
1921 | free(a1); free(a2); | |
1922 | *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 }; | |
1923 | *bytecode = a; | |
1924 | return l1+l2+4; | |
1925 | } | |
1926 | case SSF_NOT: | |
1927 | { | |
1928 | char *a1 = NULL, *a; | |
1929 | int l1; | |
1930 | ||
1931 | l1 = ssfilter_bytecompile(f->pred, &a1); | |
1932 | if (!l1) { | |
1933 | free(a1); | |
1934 | return 0; | |
1935 | } | |
1936 | if (!(a = malloc(l1+4))) abort(); | |
1937 | memcpy(a, a1, l1); | |
1938 | free(a1); | |
1939 | *(struct inet_diag_bc_op *)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 }; | |
1940 | *bytecode = a; | |
1941 | return l1+4; | |
1942 | } | |
1943 | case SSF_DEVCOND: | |
1944 | { | |
1945 | /* bytecompile for SSF_DEVCOND not supported yet */ | |
1946 | return 0; | |
1947 | } | |
1948 | case SSF_MARKMASK: | |
1949 | { | |
1950 | struct aafilter *a = (void *)f->pred; | |
1951 | struct instr { | |
1952 | struct inet_diag_bc_op op; | |
1953 | struct inet_diag_markcond cond; | |
1954 | }; | |
1955 | int inslen = sizeof(struct instr); | |
1956 | ||
1957 | if (!(*bytecode = malloc(inslen))) abort(); | |
1958 | ((struct instr *)*bytecode)[0] = (struct instr) { | |
1959 | { INET_DIAG_BC_MARK_COND, inslen, inslen + 4 }, | |
1960 | { a->mark, a->mask}, | |
1961 | }; | |
1962 | ||
1963 | return inslen; | |
1964 | } | |
1965 | case SSF_CGROUPCOND: | |
1966 | { | |
1967 | struct aafilter *a = (void *)f->pred; | |
1968 | struct instr { | |
1969 | struct inet_diag_bc_op op; | |
1970 | __u64 cgroup_id; | |
1971 | } __attribute__((packed)); | |
1972 | int inslen = sizeof(struct instr); | |
1973 | ||
1974 | if (!(*bytecode = malloc(inslen))) abort(); | |
1975 | ((struct instr *)*bytecode)[0] = (struct instr) { | |
1976 | { INET_DIAG_BC_CGROUP_COND, inslen, inslen + 4 }, | |
1977 | a->cgroup_id, | |
1978 | }; | |
1979 | ||
1980 | return inslen; | |
1981 | } | |
1982 | default: | |
1983 | abort(); | |
1984 | } | |
1985 | } | |
1986 | ||
1987 | static int remember_he(struct aafilter *a, struct hostent *he) | |
1988 | { | |
1989 | char **ptr = he->h_addr_list; | |
1990 | int cnt = 0; | |
1991 | int len; | |
1992 | ||
1993 | if (he->h_addrtype == AF_INET) | |
1994 | len = 4; | |
1995 | else if (he->h_addrtype == AF_INET6) | |
1996 | len = 16; | |
1997 | else | |
1998 | return 0; | |
1999 | ||
2000 | while (*ptr) { | |
2001 | struct aafilter *b = a; | |
2002 | ||
2003 | if (a->addr.bitlen) { | |
2004 | if ((b = malloc(sizeof(*b))) == NULL) | |
2005 | return cnt; | |
2006 | *b = *a; | |
2007 | a->next = b; | |
2008 | } | |
2009 | memcpy(b->addr.data, *ptr, len); | |
2010 | b->addr.bytelen = len; | |
2011 | b->addr.bitlen = len*8; | |
2012 | b->addr.family = he->h_addrtype; | |
2013 | ptr++; | |
2014 | cnt++; | |
2015 | } | |
2016 | return cnt; | |
2017 | } | |
2018 | ||
2019 | static int get_dns_host(struct aafilter *a, const char *addr, int fam) | |
2020 | { | |
2021 | static int notfirst; | |
2022 | int cnt = 0; | |
2023 | struct hostent *he; | |
2024 | ||
2025 | a->addr.bitlen = 0; | |
2026 | if (!notfirst) { | |
2027 | sethostent(1); | |
2028 | notfirst = 1; | |
2029 | } | |
2030 | he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam); | |
2031 | if (he) | |
2032 | cnt = remember_he(a, he); | |
2033 | if (fam == AF_UNSPEC) { | |
2034 | he = gethostbyname2(addr, AF_INET6); | |
2035 | if (he) | |
2036 | cnt += remember_he(a, he); | |
2037 | } | |
2038 | return !cnt; | |
2039 | } | |
2040 | ||
2041 | static int xll_initted; | |
2042 | ||
2043 | static void xll_init(void) | |
2044 | { | |
2045 | struct rtnl_handle rth; | |
2046 | ||
2047 | if (rtnl_open(&rth, 0) < 0) | |
2048 | exit(1); | |
2049 | ||
2050 | ll_init_map(&rth); | |
2051 | rtnl_close(&rth); | |
2052 | xll_initted = 1; | |
2053 | } | |
2054 | ||
2055 | static const char *xll_index_to_name(int index) | |
2056 | { | |
2057 | if (!xll_initted) | |
2058 | xll_init(); | |
2059 | return ll_index_to_name(index); | |
2060 | } | |
2061 | ||
2062 | static int xll_name_to_index(const char *dev) | |
2063 | { | |
2064 | if (!xll_initted) | |
2065 | xll_init(); | |
2066 | return ll_name_to_index(dev); | |
2067 | } | |
2068 | ||
2069 | void *parse_devcond(char *name) | |
2070 | { | |
2071 | struct aafilter a = { .iface = 0 }; | |
2072 | struct aafilter *res; | |
2073 | ||
2074 | a.iface = xll_name_to_index(name); | |
2075 | if (a.iface == 0) { | |
2076 | char *end; | |
2077 | unsigned long n; | |
2078 | ||
2079 | n = strtoul(name, &end, 0); | |
2080 | if (!end || end == name || *end || n > UINT_MAX) | |
2081 | return NULL; | |
2082 | ||
2083 | a.iface = n; | |
2084 | } | |
2085 | ||
2086 | res = malloc(sizeof(*res)); | |
2087 | *res = a; | |
2088 | ||
2089 | return res; | |
2090 | } | |
2091 | ||
2092 | static void vsock_set_inet_prefix(inet_prefix *a, __u32 cid) | |
2093 | { | |
2094 | *a = (inet_prefix){ | |
2095 | .bytelen = sizeof(cid), | |
2096 | .family = AF_VSOCK, | |
2097 | }; | |
2098 | memcpy(a->data, &cid, sizeof(cid)); | |
2099 | } | |
2100 | ||
2101 | void *parse_hostcond(char *addr, bool is_port) | |
2102 | { | |
2103 | char *port = NULL; | |
2104 | struct aafilter a = { .port = -1 }; | |
2105 | struct aafilter *res; | |
2106 | int fam = preferred_family; | |
2107 | struct filter *f = ¤t_filter; | |
2108 | ||
2109 | if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) { | |
2110 | char *p; | |
2111 | ||
2112 | a.addr.family = AF_UNIX; | |
2113 | if (strncmp(addr, "unix:", 5) == 0) | |
2114 | addr += 5; | |
2115 | p = strdup(addr); | |
2116 | a.addr.bitlen = 8*strlen(p); | |
2117 | memcpy(a.addr.data, &p, sizeof(p)); | |
2118 | fam = AF_UNIX; | |
2119 | goto out; | |
2120 | } | |
2121 | ||
2122 | if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) { | |
2123 | a.addr.family = AF_PACKET; | |
2124 | a.addr.bitlen = 0; | |
2125 | if (strncmp(addr, "link:", 5) == 0) | |
2126 | addr += 5; | |
2127 | port = strchr(addr, ':'); | |
2128 | if (port) { | |
2129 | *port = 0; | |
2130 | if (port[1] && strcmp(port+1, "*")) { | |
2131 | if (get_integer(&a.port, port+1, 0)) { | |
2132 | if ((a.port = xll_name_to_index(port+1)) <= 0) | |
2133 | return NULL; | |
2134 | } | |
2135 | } | |
2136 | } | |
2137 | if (addr[0] && strcmp(addr, "*")) { | |
2138 | unsigned short tmp; | |
2139 | ||
2140 | a.addr.bitlen = 32; | |
2141 | if (ll_proto_a2n(&tmp, addr)) | |
2142 | return NULL; | |
2143 | a.addr.data[0] = ntohs(tmp); | |
2144 | } | |
2145 | fam = AF_PACKET; | |
2146 | goto out; | |
2147 | } | |
2148 | ||
2149 | if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) { | |
2150 | a.addr.family = AF_NETLINK; | |
2151 | a.addr.bitlen = 0; | |
2152 | if (strncmp(addr, "netlink:", 8) == 0) | |
2153 | addr += 8; | |
2154 | port = strchr(addr, ':'); | |
2155 | if (port) { | |
2156 | *port = 0; | |
2157 | if (port[1] && strcmp(port+1, "*")) { | |
2158 | if (get_integer(&a.port, port+1, 0)) { | |
2159 | if (strcmp(port+1, "kernel") == 0) | |
2160 | a.port = 0; | |
2161 | else | |
2162 | return NULL; | |
2163 | } | |
2164 | } | |
2165 | } | |
2166 | if (addr[0] && strcmp(addr, "*")) { | |
2167 | a.addr.bitlen = 32; | |
2168 | if (nl_proto_a2n(&a.addr.data[0], addr) == -1) | |
2169 | return NULL; | |
2170 | } | |
2171 | fam = AF_NETLINK; | |
2172 | goto out; | |
2173 | } | |
2174 | ||
2175 | if (fam == AF_VSOCK || strncmp(addr, "vsock:", 6) == 0) { | |
2176 | __u32 cid = ~(__u32)0; | |
2177 | ||
2178 | a.addr.family = AF_VSOCK; | |
2179 | if (strncmp(addr, "vsock:", 6) == 0) | |
2180 | addr += 6; | |
2181 | ||
2182 | if (is_port) | |
2183 | port = addr; | |
2184 | else { | |
2185 | port = strchr(addr, ':'); | |
2186 | if (port) { | |
2187 | *port = '\0'; | |
2188 | port++; | |
2189 | } | |
2190 | } | |
2191 | ||
2192 | if (port && strcmp(port, "*") && | |
2193 | get_u32((__u32 *)&a.port, port, 0)) | |
2194 | return NULL; | |
2195 | ||
2196 | if (addr[0] && strcmp(addr, "*")) { | |
2197 | a.addr.bitlen = 32; | |
2198 | if (get_u32(&cid, addr, 0)) | |
2199 | return NULL; | |
2200 | } | |
2201 | vsock_set_inet_prefix(&a.addr, cid); | |
2202 | fam = AF_VSOCK; | |
2203 | goto out; | |
2204 | } | |
2205 | ||
2206 | if (fam == AF_INET || !strncmp(addr, "inet:", 5)) { | |
2207 | fam = AF_INET; | |
2208 | if (!strncmp(addr, "inet:", 5)) | |
2209 | addr += 5; | |
2210 | } else if (fam == AF_INET6 || !strncmp(addr, "inet6:", 6)) { | |
2211 | fam = AF_INET6; | |
2212 | if (!strncmp(addr, "inet6:", 6)) | |
2213 | addr += 6; | |
2214 | } | |
2215 | ||
2216 | /* URL-like literal [] */ | |
2217 | if (addr[0] == '[') { | |
2218 | addr++; | |
2219 | if ((port = strchr(addr, ']')) == NULL) | |
2220 | return NULL; | |
2221 | *port++ = 0; | |
2222 | } else if (addr[0] == '*') { | |
2223 | port = addr+1; | |
2224 | } else { | |
2225 | port = strrchr(strchr(addr, '/') ? : addr, ':'); | |
2226 | } | |
2227 | ||
2228 | if (is_port) | |
2229 | port = addr; | |
2230 | ||
2231 | if (port && *port) { | |
2232 | if (*port == ':') | |
2233 | *port++ = 0; | |
2234 | ||
2235 | if (*port && *port != '*') { | |
2236 | if (get_integer(&a.port, port, 0)) { | |
2237 | struct servent *se1 = NULL; | |
2238 | struct servent *se2 = NULL; | |
2239 | ||
2240 | if (current_filter.dbs&(1<<UDP_DB)) | |
2241 | se1 = getservbyname(port, UDP_PROTO); | |
2242 | if (current_filter.dbs&(1<<TCP_DB)) | |
2243 | se2 = getservbyname(port, TCP_PROTO); | |
2244 | if (se1 && se2 && se1->s_port != se2->s_port) { | |
2245 | fprintf(stderr, "Error: ambiguous port \"%s\".\n", port); | |
2246 | return NULL; | |
2247 | } | |
2248 | if (!se1) | |
2249 | se1 = se2; | |
2250 | if (se1) { | |
2251 | a.port = ntohs(se1->s_port); | |
2252 | } else { | |
2253 | struct scache *s; | |
2254 | ||
2255 | for (s = rlist; s; s = s->next) { | |
2256 | if ((s->proto == UDP_PROTO && | |
2257 | (current_filter.dbs&(1<<UDP_DB))) || | |
2258 | (s->proto == TCP_PROTO && | |
2259 | (current_filter.dbs&(1<<TCP_DB)))) { | |
2260 | if (s->name && strcmp(s->name, port) == 0) { | |
2261 | if (a.port > 0 && a.port != s->port) { | |
2262 | fprintf(stderr, "Error: ambiguous port \"%s\".\n", port); | |
2263 | return NULL; | |
2264 | } | |
2265 | a.port = s->port; | |
2266 | } | |
2267 | } | |
2268 | } | |
2269 | if (a.port <= 0) { | |
2270 | fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port); | |
2271 | return NULL; | |
2272 | } | |
2273 | } | |
2274 | } | |
2275 | } | |
2276 | } | |
2277 | if (!is_port && *addr && *addr != '*') { | |
2278 | if (get_prefix_1(&a.addr, addr, fam)) { | |
2279 | if (get_dns_host(&a, addr, fam)) { | |
2280 | fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr); | |
2281 | return NULL; | |
2282 | } | |
2283 | } | |
2284 | } | |
2285 | ||
2286 | out: | |
2287 | if (fam != AF_UNSPEC) { | |
2288 | int states = f->states; | |
2289 | f->families = 0; | |
2290 | filter_af_set(f, fam); | |
2291 | filter_states_set(f, states); | |
2292 | } | |
2293 | ||
2294 | res = malloc(sizeof(*res)); | |
2295 | if (res) | |
2296 | memcpy(res, &a, sizeof(a)); | |
2297 | return res; | |
2298 | } | |
2299 | ||
2300 | void *parse_markmask(const char *markmask) | |
2301 | { | |
2302 | struct aafilter a, *res; | |
2303 | ||
2304 | if (strchr(markmask, '/')) { | |
2305 | if (sscanf(markmask, "%i/%i", &a.mark, &a.mask) != 2) | |
2306 | return NULL; | |
2307 | } else { | |
2308 | a.mask = 0xffffffff; | |
2309 | if (sscanf(markmask, "%i", &a.mark) != 1) | |
2310 | return NULL; | |
2311 | } | |
2312 | ||
2313 | res = malloc(sizeof(*res)); | |
2314 | if (res) | |
2315 | memcpy(res, &a, sizeof(a)); | |
2316 | return res; | |
2317 | } | |
2318 | ||
2319 | void *parse_cgroupcond(const char *path) | |
2320 | { | |
2321 | struct aafilter *res; | |
2322 | __u64 id; | |
2323 | ||
2324 | id = get_cgroup2_id(path); | |
2325 | if (!id) | |
2326 | return NULL; | |
2327 | ||
2328 | res = malloc(sizeof(*res)); | |
2329 | if (res) | |
2330 | res->cgroup_id = id; | |
2331 | ||
2332 | return res; | |
2333 | } | |
2334 | ||
2335 | static void proc_ctx_print(struct sockstat *s) | |
2336 | { | |
2337 | char *buf; | |
2338 | ||
2339 | if (show_proc_ctx || show_sock_ctx) { | |
2340 | if (find_entry(s->ino, &buf, | |
2341 | (show_proc_ctx & show_sock_ctx) ? | |
2342 | PROC_SOCK_CTX : PROC_CTX) > 0) { | |
2343 | out(" users:(%s)", buf); | |
2344 | free(buf); | |
2345 | } | |
2346 | } else if (show_users) { | |
2347 | if (find_entry(s->ino, &buf, USERS) > 0) { | |
2348 | out(" users:(%s)", buf); | |
2349 | free(buf); | |
2350 | } | |
2351 | } | |
2352 | } | |
2353 | ||
2354 | static void inet_stats_print(struct sockstat *s, bool v6only) | |
2355 | { | |
2356 | sock_state_print(s); | |
2357 | ||
2358 | inet_addr_print(&s->local, s->lport, s->iface, v6only); | |
2359 | inet_addr_print(&s->remote, s->rport, 0, v6only); | |
2360 | ||
2361 | proc_ctx_print(s); | |
2362 | } | |
2363 | ||
2364 | static int proc_parse_inet_addr(char *loc, char *rem, int family, struct | |
2365 | sockstat * s) | |
2366 | { | |
2367 | s->local.family = s->remote.family = family; | |
2368 | if (family == AF_INET) { | |
2369 | sscanf(loc, "%x:%x", s->local.data, (unsigned *)&s->lport); | |
2370 | sscanf(rem, "%x:%x", s->remote.data, (unsigned *)&s->rport); | |
2371 | s->local.bytelen = s->remote.bytelen = 4; | |
2372 | return 0; | |
2373 | } else { | |
2374 | sscanf(loc, "%08x%08x%08x%08x:%x", | |
2375 | s->local.data, | |
2376 | s->local.data + 1, | |
2377 | s->local.data + 2, | |
2378 | s->local.data + 3, | |
2379 | &s->lport); | |
2380 | sscanf(rem, "%08x%08x%08x%08x:%x", | |
2381 | s->remote.data, | |
2382 | s->remote.data + 1, | |
2383 | s->remote.data + 2, | |
2384 | s->remote.data + 3, | |
2385 | &s->rport); | |
2386 | s->local.bytelen = s->remote.bytelen = 16; | |
2387 | return 0; | |
2388 | } | |
2389 | return -1; | |
2390 | } | |
2391 | ||
2392 | static int proc_inet_split_line(char *line, char **loc, char **rem, char **data) | |
2393 | { | |
2394 | char *p; | |
2395 | ||
2396 | if ((p = strchr(line, ':')) == NULL) | |
2397 | return -1; | |
2398 | ||
2399 | *loc = p+2; | |
2400 | if ((p = strchr(*loc, ':')) == NULL) | |
2401 | return -1; | |
2402 | ||
2403 | p[5] = 0; | |
2404 | *rem = p+6; | |
2405 | if ((p = strchr(*rem, ':')) == NULL) | |
2406 | return -1; | |
2407 | ||
2408 | p[5] = 0; | |
2409 | *data = p+6; | |
2410 | return 0; | |
2411 | } | |
2412 | ||
2413 | /* | |
2414 | * Display bandwidth in standard units | |
2415 | * See: https://en.wikipedia.org/wiki/Data-rate_units | |
2416 | * bw is in bits per second | |
2417 | */ | |
2418 | static char *sprint_bw(char *buf, double bw) | |
2419 | { | |
2420 | if (numeric) | |
2421 | sprintf(buf, "%.0f", bw); | |
2422 | else if (bw >= 1e12) | |
2423 | sprintf(buf, "%.3gT", bw / 1e12); | |
2424 | else if (bw >= 1e9) | |
2425 | sprintf(buf, "%.3gG", bw / 1e9); | |
2426 | else if (bw >= 1e6) | |
2427 | sprintf(buf, "%.3gM", bw / 1e6); | |
2428 | else if (bw >= 1e3) | |
2429 | sprintf(buf, "%.3gk", bw / 1e3); | |
2430 | else | |
2431 | sprintf(buf, "%g", bw); | |
2432 | ||
2433 | return buf; | |
2434 | } | |
2435 | ||
2436 | static void sctp_stats_print(struct sctp_info *s) | |
2437 | { | |
2438 | if (s->sctpi_tag) | |
2439 | out(" tag:%x", s->sctpi_tag); | |
2440 | if (s->sctpi_state) | |
2441 | out(" state:%s", sctp_sstate_name[s->sctpi_state]); | |
2442 | if (s->sctpi_rwnd) | |
2443 | out(" rwnd:%d", s->sctpi_rwnd); | |
2444 | if (s->sctpi_unackdata) | |
2445 | out(" unackdata:%d", s->sctpi_unackdata); | |
2446 | if (s->sctpi_penddata) | |
2447 | out(" penddata:%d", s->sctpi_penddata); | |
2448 | if (s->sctpi_instrms) | |
2449 | out(" instrms:%d", s->sctpi_instrms); | |
2450 | if (s->sctpi_outstrms) | |
2451 | out(" outstrms:%d", s->sctpi_outstrms); | |
2452 | if (s->sctpi_inqueue) | |
2453 | out(" inqueue:%d", s->sctpi_inqueue); | |
2454 | if (s->sctpi_outqueue) | |
2455 | out(" outqueue:%d", s->sctpi_outqueue); | |
2456 | if (s->sctpi_overall_error) | |
2457 | out(" overerr:%d", s->sctpi_overall_error); | |
2458 | if (s->sctpi_max_burst) | |
2459 | out(" maxburst:%d", s->sctpi_max_burst); | |
2460 | if (s->sctpi_maxseg) | |
2461 | out(" maxseg:%d", s->sctpi_maxseg); | |
2462 | if (s->sctpi_peer_rwnd) | |
2463 | out(" prwnd:%d", s->sctpi_peer_rwnd); | |
2464 | if (s->sctpi_peer_tag) | |
2465 | out(" ptag:%x", s->sctpi_peer_tag); | |
2466 | if (s->sctpi_peer_capable) | |
2467 | out(" pcapable:%d", s->sctpi_peer_capable); | |
2468 | if (s->sctpi_peer_sack) | |
2469 | out(" psack:%d", s->sctpi_peer_sack); | |
2470 | if (s->sctpi_s_autoclose) | |
2471 | out(" autoclose:%d", s->sctpi_s_autoclose); | |
2472 | if (s->sctpi_s_adaptation_ind) | |
2473 | out(" adapind:%d", s->sctpi_s_adaptation_ind); | |
2474 | if (s->sctpi_s_pd_point) | |
2475 | out(" pdpoint:%d", s->sctpi_s_pd_point); | |
2476 | if (s->sctpi_s_nodelay) | |
2477 | out(" nodelay:%d", s->sctpi_s_nodelay); | |
2478 | if (s->sctpi_s_disable_fragments) | |
2479 | out(" nofrag:%d", s->sctpi_s_disable_fragments); | |
2480 | if (s->sctpi_s_v4mapped) | |
2481 | out(" v4mapped:%d", s->sctpi_s_v4mapped); | |
2482 | if (s->sctpi_s_frag_interleave) | |
2483 | out(" fraginl:%d", s->sctpi_s_frag_interleave); | |
2484 | } | |
2485 | ||
2486 | static void tcp_stats_print(struct tcpstat *s) | |
2487 | { | |
2488 | char b1[64]; | |
2489 | ||
2490 | if (s->has_ts_opt) | |
2491 | out(" ts"); | |
2492 | if (s->has_sack_opt) | |
2493 | out(" sack"); | |
2494 | if (s->has_ecn_opt) | |
2495 | out(" ecn"); | |
2496 | if (s->has_ecnseen_opt) | |
2497 | out(" ecnseen"); | |
2498 | if (s->has_fastopen_opt) | |
2499 | out(" fastopen"); | |
2500 | if (s->cong_alg[0]) | |
2501 | out(" %s", s->cong_alg); | |
2502 | if (s->has_wscale_opt) | |
2503 | out(" wscale:%d,%d", s->snd_wscale, s->rcv_wscale); | |
2504 | if (s->rto) | |
2505 | out(" rto:%g", s->rto); | |
2506 | if (s->backoff) | |
2507 | out(" backoff:%u", s->backoff); | |
2508 | if (s->rtt) | |
2509 | out(" rtt:%g/%g", s->rtt, s->rttvar); | |
2510 | if (s->ato) | |
2511 | out(" ato:%g", s->ato); | |
2512 | ||
2513 | if (s->qack) | |
2514 | out(" qack:%d", s->qack); | |
2515 | if (s->qack & 1) | |
2516 | out(" bidir"); | |
2517 | ||
2518 | if (s->mss) | |
2519 | out(" mss:%d", s->mss); | |
2520 | if (s->pmtu) | |
2521 | out(" pmtu:%u", s->pmtu); | |
2522 | if (s->rcv_mss) | |
2523 | out(" rcvmss:%d", s->rcv_mss); | |
2524 | if (s->advmss) | |
2525 | out(" advmss:%d", s->advmss); | |
2526 | if (s->cwnd) | |
2527 | out(" cwnd:%u", s->cwnd); | |
2528 | if (s->ssthresh) | |
2529 | out(" ssthresh:%d", s->ssthresh); | |
2530 | ||
2531 | if (s->bytes_sent) | |
2532 | out(" bytes_sent:%llu", s->bytes_sent); | |
2533 | if (s->bytes_retrans) | |
2534 | out(" bytes_retrans:%llu", s->bytes_retrans); | |
2535 | if (s->bytes_acked) | |
2536 | out(" bytes_acked:%llu", s->bytes_acked); | |
2537 | if (s->bytes_received) | |
2538 | out(" bytes_received:%llu", s->bytes_received); | |
2539 | if (s->segs_out) | |
2540 | out(" segs_out:%u", s->segs_out); | |
2541 | if (s->segs_in) | |
2542 | out(" segs_in:%u", s->segs_in); | |
2543 | if (s->data_segs_out) | |
2544 | out(" data_segs_out:%u", s->data_segs_out); | |
2545 | if (s->data_segs_in) | |
2546 | out(" data_segs_in:%u", s->data_segs_in); | |
2547 | ||
2548 | if (s->dctcp && s->dctcp->enabled) { | |
2549 | struct dctcpstat *dctcp = s->dctcp; | |
2550 | ||
2551 | out(" dctcp:(ce_state:%u,alpha:%u,ab_ecn:%u,ab_tot:%u)", | |
2552 | dctcp->ce_state, dctcp->alpha, dctcp->ab_ecn, | |
2553 | dctcp->ab_tot); | |
2554 | } else if (s->dctcp) { | |
2555 | out(" dctcp:fallback_mode"); | |
2556 | } | |
2557 | ||
2558 | if (s->bbr_info) { | |
2559 | __u64 bw; | |
2560 | ||
2561 | bw = s->bbr_info->bbr_bw_hi; | |
2562 | bw <<= 32; | |
2563 | bw |= s->bbr_info->bbr_bw_lo; | |
2564 | ||
2565 | out(" bbr:(bw:%sbps,mrtt:%g", | |
2566 | sprint_bw(b1, bw * 8.0), | |
2567 | (double)s->bbr_info->bbr_min_rtt / 1000.0); | |
2568 | if (s->bbr_info->bbr_pacing_gain) | |
2569 | out(",pacing_gain:%g", | |
2570 | (double)s->bbr_info->bbr_pacing_gain / 256.0); | |
2571 | if (s->bbr_info->bbr_cwnd_gain) | |
2572 | out(",cwnd_gain:%g", | |
2573 | (double)s->bbr_info->bbr_cwnd_gain / 256.0); | |
2574 | out(")"); | |
2575 | } | |
2576 | ||
2577 | if (s->send_bps) | |
2578 | out(" send %sbps", sprint_bw(b1, s->send_bps)); | |
2579 | if (s->lastsnd) | |
2580 | out(" lastsnd:%u", s->lastsnd); | |
2581 | if (s->lastrcv) | |
2582 | out(" lastrcv:%u", s->lastrcv); | |
2583 | if (s->lastack) | |
2584 | out(" lastack:%u", s->lastack); | |
2585 | ||
2586 | if (s->pacing_rate) { | |
2587 | out(" pacing_rate %sbps", sprint_bw(b1, s->pacing_rate)); | |
2588 | if (s->pacing_rate_max) | |
2589 | out("/%sbps", sprint_bw(b1, s->pacing_rate_max)); | |
2590 | } | |
2591 | ||
2592 | if (s->delivery_rate) | |
2593 | out(" delivery_rate %sbps", sprint_bw(b1, s->delivery_rate)); | |
2594 | if (s->delivered) | |
2595 | out(" delivered:%u", s->delivered); | |
2596 | if (s->delivered_ce) | |
2597 | out(" delivered_ce:%u", s->delivered_ce); | |
2598 | if (s->app_limited) | |
2599 | out(" app_limited"); | |
2600 | ||
2601 | if (s->busy_time) { | |
2602 | out(" busy:%llums", s->busy_time / 1000); | |
2603 | if (s->rwnd_limited) | |
2604 | out(" rwnd_limited:%llums(%.1f%%)", | |
2605 | s->rwnd_limited / 1000, | |
2606 | 100.0 * s->rwnd_limited / s->busy_time); | |
2607 | if (s->sndbuf_limited) | |
2608 | out(" sndbuf_limited:%llums(%.1f%%)", | |
2609 | s->sndbuf_limited / 1000, | |
2610 | 100.0 * s->sndbuf_limited / s->busy_time); | |
2611 | } | |
2612 | ||
2613 | if (s->unacked) | |
2614 | out(" unacked:%u", s->unacked); | |
2615 | if (s->retrans || s->retrans_total) | |
2616 | out(" retrans:%u/%u", s->retrans, s->retrans_total); | |
2617 | if (s->lost) | |
2618 | out(" lost:%u", s->lost); | |
2619 | if (s->sacked && s->ss.state != SS_LISTEN) | |
2620 | out(" sacked:%u", s->sacked); | |
2621 | if (s->dsack_dups) | |
2622 | out(" dsack_dups:%u", s->dsack_dups); | |
2623 | if (s->fackets) | |
2624 | out(" fackets:%u", s->fackets); | |
2625 | if (s->reordering != 3) | |
2626 | out(" reordering:%d", s->reordering); | |
2627 | if (s->reord_seen) | |
2628 | out(" reord_seen:%d", s->reord_seen); | |
2629 | if (s->rcv_rtt) | |
2630 | out(" rcv_rtt:%g", s->rcv_rtt); | |
2631 | if (s->rcv_space) | |
2632 | out(" rcv_space:%d", s->rcv_space); | |
2633 | if (s->rcv_ssthresh) | |
2634 | out(" rcv_ssthresh:%u", s->rcv_ssthresh); | |
2635 | if (s->not_sent) | |
2636 | out(" notsent:%u", s->not_sent); | |
2637 | if (s->min_rtt) | |
2638 | out(" minrtt:%g", s->min_rtt); | |
2639 | } | |
2640 | ||
2641 | static void tcp_timer_print(struct tcpstat *s) | |
2642 | { | |
2643 | static const char * const tmr_name[] = { | |
2644 | "off", | |
2645 | "on", | |
2646 | "keepalive", | |
2647 | "timewait", | |
2648 | "persist", | |
2649 | "unknown" | |
2650 | }; | |
2651 | ||
2652 | if (s->timer) { | |
2653 | if (s->timer > 4) | |
2654 | s->timer = 5; | |
2655 | out(" timer:(%s,%s,%d)", | |
2656 | tmr_name[s->timer], | |
2657 | print_ms_timer(s->timeout), | |
2658 | s->retrans); | |
2659 | } | |
2660 | } | |
2661 | ||
2662 | static void sctp_timer_print(struct tcpstat *s) | |
2663 | { | |
2664 | if (s->timer) | |
2665 | out(" timer:(T3_RTX,%s,%d)", | |
2666 | print_ms_timer(s->timeout), s->retrans); | |
2667 | } | |
2668 | ||
2669 | static int tcp_show_line(char *line, const struct filter *f, int family) | |
2670 | { | |
2671 | int rto = 0, ato = 0; | |
2672 | struct tcpstat s = {}; | |
2673 | char *loc, *rem, *data; | |
2674 | char opt[256]; | |
2675 | int n; | |
2676 | int hz = get_user_hz(); | |
2677 | ||
2678 | if (proc_inet_split_line(line, &loc, &rem, &data)) | |
2679 | return -1; | |
2680 | ||
2681 | int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0'); | |
2682 | ||
2683 | if (!(f->states & (1 << state))) | |
2684 | return 0; | |
2685 | ||
2686 | proc_parse_inet_addr(loc, rem, family, &s.ss); | |
2687 | ||
2688 | if (f->f && run_ssfilter(f->f, &s.ss) == 0) | |
2689 | return 0; | |
2690 | ||
2691 | opt[0] = 0; | |
2692 | n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %u %d %[^\n]\n", | |
2693 | &s.ss.state, &s.ss.wq, &s.ss.rq, | |
2694 | &s.timer, &s.timeout, &s.retrans, &s.ss.uid, &s.probes, | |
2695 | &s.ss.ino, &s.ss.refcnt, &s.ss.sk, &rto, &ato, &s.qack, &s.cwnd, | |
2696 | &s.ssthresh, opt); | |
2697 | ||
2698 | if (n < 17) | |
2699 | opt[0] = 0; | |
2700 | ||
2701 | if (n < 12) { | |
2702 | rto = 0; | |
2703 | s.cwnd = 2; | |
2704 | s.ssthresh = -1; | |
2705 | ato = s.qack = 0; | |
2706 | } | |
2707 | ||
2708 | s.retrans = s.timer != 1 ? s.probes : s.retrans; | |
2709 | s.timeout = (s.timeout * 1000 + hz - 1) / hz; | |
2710 | s.ato = (double)ato / hz; | |
2711 | s.qack /= 2; | |
2712 | s.rto = (double)rto; | |
2713 | s.ssthresh = s.ssthresh == -1 ? 0 : s.ssthresh; | |
2714 | s.rto = s.rto != 3 * hz ? s.rto / hz : 0; | |
2715 | s.ss.type = IPPROTO_TCP; | |
2716 | ||
2717 | inet_stats_print(&s.ss, false); | |
2718 | ||
2719 | if (show_options) | |
2720 | tcp_timer_print(&s); | |
2721 | ||
2722 | if (show_details) { | |
2723 | sock_details_print(&s.ss); | |
2724 | if (opt[0]) | |
2725 | out(" opt:\"%s\"", opt); | |
2726 | } | |
2727 | ||
2728 | if (show_tcpinfo) | |
2729 | tcp_stats_print(&s); | |
2730 | ||
2731 | return 0; | |
2732 | } | |
2733 | ||
2734 | static int generic_record_read(FILE *fp, | |
2735 | int (*worker)(char*, const struct filter *, int), | |
2736 | const struct filter *f, int fam) | |
2737 | { | |
2738 | char line[256]; | |
2739 | ||
2740 | /* skip header */ | |
2741 | if (fgets(line, sizeof(line), fp) == NULL) | |
2742 | goto outerr; | |
2743 | ||
2744 | while (fgets(line, sizeof(line), fp) != NULL) { | |
2745 | int n = strlen(line); | |
2746 | ||
2747 | if (n == 0 || line[n-1] != '\n') { | |
2748 | errno = -EINVAL; | |
2749 | return -1; | |
2750 | } | |
2751 | line[n-1] = 0; | |
2752 | ||
2753 | if (worker(line, f, fam) < 0) | |
2754 | return 0; | |
2755 | } | |
2756 | outerr: | |
2757 | ||
2758 | return ferror(fp) ? -1 : 0; | |
2759 | } | |
2760 | ||
2761 | static void print_skmeminfo(struct rtattr *tb[], int attrtype) | |
2762 | { | |
2763 | const __u32 *skmeminfo; | |
2764 | ||
2765 | if (!tb[attrtype]) { | |
2766 | if (attrtype == INET_DIAG_SKMEMINFO) { | |
2767 | if (!tb[INET_DIAG_MEMINFO]) | |
2768 | return; | |
2769 | ||
2770 | const struct inet_diag_meminfo *minfo = | |
2771 | RTA_DATA(tb[INET_DIAG_MEMINFO]); | |
2772 | ||
2773 | out(" mem:(r%u,w%u,f%u,t%u)", | |
2774 | minfo->idiag_rmem, | |
2775 | minfo->idiag_wmem, | |
2776 | minfo->idiag_fmem, | |
2777 | minfo->idiag_tmem); | |
2778 | } | |
2779 | return; | |
2780 | } | |
2781 | ||
2782 | skmeminfo = RTA_DATA(tb[attrtype]); | |
2783 | ||
2784 | out(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u", | |
2785 | skmeminfo[SK_MEMINFO_RMEM_ALLOC], | |
2786 | skmeminfo[SK_MEMINFO_RCVBUF], | |
2787 | skmeminfo[SK_MEMINFO_WMEM_ALLOC], | |
2788 | skmeminfo[SK_MEMINFO_SNDBUF], | |
2789 | skmeminfo[SK_MEMINFO_FWD_ALLOC], | |
2790 | skmeminfo[SK_MEMINFO_WMEM_QUEUED], | |
2791 | skmeminfo[SK_MEMINFO_OPTMEM]); | |
2792 | ||
2793 | if (RTA_PAYLOAD(tb[attrtype]) >= | |
2794 | (SK_MEMINFO_BACKLOG + 1) * sizeof(__u32)) | |
2795 | out(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]); | |
2796 | ||
2797 | if (RTA_PAYLOAD(tb[attrtype]) >= | |
2798 | (SK_MEMINFO_DROPS + 1) * sizeof(__u32)) | |
2799 | out(",d%u", skmeminfo[SK_MEMINFO_DROPS]); | |
2800 | ||
2801 | out(")"); | |
2802 | } | |
2803 | ||
2804 | static void print_md5sig(struct tcp_diag_md5sig *sig) | |
2805 | { | |
2806 | out("%s/%d=", | |
2807 | format_host(sig->tcpm_family, | |
2808 | sig->tcpm_family == AF_INET6 ? 16 : 4, | |
2809 | &sig->tcpm_addr), | |
2810 | sig->tcpm_prefixlen); | |
2811 | print_escape_buf(sig->tcpm_key, sig->tcpm_keylen, " ,"); | |
2812 | } | |
2813 | ||
2814 | static void tcp_tls_version(struct rtattr *attr) | |
2815 | { | |
2816 | u_int16_t val; | |
2817 | ||
2818 | if (!attr) | |
2819 | return; | |
2820 | val = rta_getattr_u16(attr); | |
2821 | ||
2822 | switch (val) { | |
2823 | case TLS_1_2_VERSION: | |
2824 | out(" version: 1.2"); | |
2825 | break; | |
2826 | case TLS_1_3_VERSION: | |
2827 | out(" version: 1.3"); | |
2828 | break; | |
2829 | default: | |
2830 | out(" version: unknown(%hu)", val); | |
2831 | break; | |
2832 | } | |
2833 | } | |
2834 | ||
2835 | static void tcp_tls_cipher(struct rtattr *attr) | |
2836 | { | |
2837 | u_int16_t val; | |
2838 | ||
2839 | if (!attr) | |
2840 | return; | |
2841 | val = rta_getattr_u16(attr); | |
2842 | ||
2843 | switch (val) { | |
2844 | case TLS_CIPHER_AES_GCM_128: | |
2845 | out(" cipher: aes-gcm-128"); | |
2846 | break; | |
2847 | case TLS_CIPHER_AES_GCM_256: | |
2848 | out(" cipher: aes-gcm-256"); | |
2849 | break; | |
2850 | } | |
2851 | } | |
2852 | ||
2853 | static void tcp_tls_conf(const char *name, struct rtattr *attr) | |
2854 | { | |
2855 | u_int16_t val; | |
2856 | ||
2857 | if (!attr) | |
2858 | return; | |
2859 | val = rta_getattr_u16(attr); | |
2860 | ||
2861 | switch (val) { | |
2862 | case TLS_CONF_BASE: | |
2863 | out(" %s: none", name); | |
2864 | break; | |
2865 | case TLS_CONF_SW: | |
2866 | out(" %s: sw", name); | |
2867 | break; | |
2868 | case TLS_CONF_HW: | |
2869 | out(" %s: hw", name); | |
2870 | break; | |
2871 | case TLS_CONF_HW_RECORD: | |
2872 | out(" %s: hw-record", name); | |
2873 | break; | |
2874 | default: | |
2875 | out(" %s: unknown(%hu)", name, val); | |
2876 | break; | |
2877 | } | |
2878 | } | |
2879 | ||
2880 | static void mptcp_subflow_info(struct rtattr *tb[]) | |
2881 | { | |
2882 | u_int32_t flags = 0; | |
2883 | ||
2884 | if (tb[MPTCP_SUBFLOW_ATTR_FLAGS]) { | |
2885 | char caps[32 + 1] = { 0 }, *cap = &caps[0]; | |
2886 | ||
2887 | flags = rta_getattr_u32(tb[MPTCP_SUBFLOW_ATTR_FLAGS]); | |
2888 | ||
2889 | if (flags & MPTCP_SUBFLOW_FLAG_MCAP_REM) | |
2890 | *cap++ = 'M'; | |
2891 | if (flags & MPTCP_SUBFLOW_FLAG_MCAP_LOC) | |
2892 | *cap++ = 'm'; | |
2893 | if (flags & MPTCP_SUBFLOW_FLAG_JOIN_REM) | |
2894 | *cap++ = 'J'; | |
2895 | if (flags & MPTCP_SUBFLOW_FLAG_JOIN_LOC) | |
2896 | *cap++ = 'j'; | |
2897 | if (flags & MPTCP_SUBFLOW_FLAG_BKUP_REM) | |
2898 | *cap++ = 'B'; | |
2899 | if (flags & MPTCP_SUBFLOW_FLAG_BKUP_LOC) | |
2900 | *cap++ = 'b'; | |
2901 | if (flags & MPTCP_SUBFLOW_FLAG_FULLY_ESTABLISHED) | |
2902 | *cap++ = 'e'; | |
2903 | if (flags & MPTCP_SUBFLOW_FLAG_CONNECTED) | |
2904 | *cap++ = 'c'; | |
2905 | if (flags & MPTCP_SUBFLOW_FLAG_MAPVALID) | |
2906 | *cap++ = 'v'; | |
2907 | if (flags) | |
2908 | out(" flags:%s", caps); | |
2909 | } | |
2910 | if (tb[MPTCP_SUBFLOW_ATTR_TOKEN_REM] && | |
2911 | tb[MPTCP_SUBFLOW_ATTR_TOKEN_LOC] && | |
2912 | tb[MPTCP_SUBFLOW_ATTR_ID_REM] && | |
2913 | tb[MPTCP_SUBFLOW_ATTR_ID_LOC]) | |
2914 | out(" token:%04x(id:%hhu)/%04x(id:%hhu)", | |
2915 | rta_getattr_u32(tb[MPTCP_SUBFLOW_ATTR_TOKEN_REM]), | |
2916 | rta_getattr_u8(tb[MPTCP_SUBFLOW_ATTR_ID_REM]), | |
2917 | rta_getattr_u32(tb[MPTCP_SUBFLOW_ATTR_TOKEN_LOC]), | |
2918 | rta_getattr_u8(tb[MPTCP_SUBFLOW_ATTR_ID_LOC])); | |
2919 | if (tb[MPTCP_SUBFLOW_ATTR_MAP_SEQ]) | |
2920 | out(" seq:%llx", | |
2921 | rta_getattr_u64(tb[MPTCP_SUBFLOW_ATTR_MAP_SEQ])); | |
2922 | if (tb[MPTCP_SUBFLOW_ATTR_MAP_SFSEQ]) | |
2923 | out(" sfseq:%x", | |
2924 | rta_getattr_u32(tb[MPTCP_SUBFLOW_ATTR_MAP_SFSEQ])); | |
2925 | if (tb[MPTCP_SUBFLOW_ATTR_SSN_OFFSET]) | |
2926 | out(" ssnoff:%x", | |
2927 | rta_getattr_u32(tb[MPTCP_SUBFLOW_ATTR_SSN_OFFSET])); | |
2928 | if (tb[MPTCP_SUBFLOW_ATTR_MAP_DATALEN]) | |
2929 | out(" maplen:%x", | |
2930 | rta_getattr_u32(tb[MPTCP_SUBFLOW_ATTR_MAP_DATALEN])); | |
2931 | } | |
2932 | ||
2933 | #define TCPI_HAS_OPT(info, opt) !!(info->tcpi_options & (opt)) | |
2934 | ||
2935 | static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r, | |
2936 | struct rtattr *tb[]) | |
2937 | { | |
2938 | double rtt = 0; | |
2939 | struct tcpstat s = {}; | |
2940 | ||
2941 | s.ss.state = r->idiag_state; | |
2942 | ||
2943 | print_skmeminfo(tb, INET_DIAG_SKMEMINFO); | |
2944 | ||
2945 | if (tb[INET_DIAG_INFO]) { | |
2946 | struct tcp_info *info; | |
2947 | int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]); | |
2948 | ||
2949 | /* workaround for older kernels with less fields */ | |
2950 | if (len < sizeof(*info)) { | |
2951 | info = alloca(sizeof(*info)); | |
2952 | memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len); | |
2953 | memset((char *)info + len, 0, sizeof(*info) - len); | |
2954 | } else | |
2955 | info = RTA_DATA(tb[INET_DIAG_INFO]); | |
2956 | ||
2957 | if (show_options) { | |
2958 | s.has_ts_opt = TCPI_HAS_OPT(info, TCPI_OPT_TIMESTAMPS); | |
2959 | s.has_sack_opt = TCPI_HAS_OPT(info, TCPI_OPT_SACK); | |
2960 | s.has_ecn_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN); | |
2961 | s.has_ecnseen_opt = TCPI_HAS_OPT(info, TCPI_OPT_ECN_SEEN); | |
2962 | s.has_fastopen_opt = TCPI_HAS_OPT(info, TCPI_OPT_SYN_DATA); | |
2963 | } | |
2964 | ||
2965 | if (tb[INET_DIAG_CONG]) | |
2966 | strncpy(s.cong_alg, | |
2967 | rta_getattr_str(tb[INET_DIAG_CONG]), | |
2968 | sizeof(s.cong_alg) - 1); | |
2969 | ||
2970 | if (TCPI_HAS_OPT(info, TCPI_OPT_WSCALE)) { | |
2971 | s.has_wscale_opt = true; | |
2972 | s.snd_wscale = info->tcpi_snd_wscale; | |
2973 | s.rcv_wscale = info->tcpi_rcv_wscale; | |
2974 | } | |
2975 | ||
2976 | if (info->tcpi_rto && info->tcpi_rto != 3000000) | |
2977 | s.rto = (double)info->tcpi_rto / 1000; | |
2978 | ||
2979 | s.backoff = info->tcpi_backoff; | |
2980 | s.rtt = (double)info->tcpi_rtt / 1000; | |
2981 | s.rttvar = (double)info->tcpi_rttvar / 1000; | |
2982 | s.ato = (double)info->tcpi_ato / 1000; | |
2983 | s.mss = info->tcpi_snd_mss; | |
2984 | s.rcv_mss = info->tcpi_rcv_mss; | |
2985 | s.advmss = info->tcpi_advmss; | |
2986 | s.rcv_space = info->tcpi_rcv_space; | |
2987 | s.rcv_rtt = (double)info->tcpi_rcv_rtt / 1000; | |
2988 | s.lastsnd = info->tcpi_last_data_sent; | |
2989 | s.lastrcv = info->tcpi_last_data_recv; | |
2990 | s.lastack = info->tcpi_last_ack_recv; | |
2991 | s.unacked = info->tcpi_unacked; | |
2992 | s.retrans = info->tcpi_retrans; | |
2993 | s.retrans_total = info->tcpi_total_retrans; | |
2994 | s.lost = info->tcpi_lost; | |
2995 | s.sacked = info->tcpi_sacked; | |
2996 | s.fackets = info->tcpi_fackets; | |
2997 | s.reordering = info->tcpi_reordering; | |
2998 | s.rcv_ssthresh = info->tcpi_rcv_ssthresh; | |
2999 | s.cwnd = info->tcpi_snd_cwnd; | |
3000 | s.pmtu = info->tcpi_pmtu; | |
3001 | ||
3002 | if (info->tcpi_snd_ssthresh < 0xFFFF) | |
3003 | s.ssthresh = info->tcpi_snd_ssthresh; | |
3004 | ||
3005 | rtt = (double) info->tcpi_rtt; | |
3006 | if (tb[INET_DIAG_VEGASINFO]) { | |
3007 | const struct tcpvegas_info *vinfo | |
3008 | = RTA_DATA(tb[INET_DIAG_VEGASINFO]); | |
3009 | ||
3010 | if (vinfo->tcpv_enabled && | |
3011 | vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff) | |
3012 | rtt = vinfo->tcpv_rtt; | |
3013 | } | |
3014 | ||
3015 | if (tb[INET_DIAG_DCTCPINFO]) { | |
3016 | struct dctcpstat *dctcp = malloc(sizeof(struct | |
3017 | dctcpstat)); | |
3018 | ||
3019 | const struct tcp_dctcp_info *dinfo | |
3020 | = RTA_DATA(tb[INET_DIAG_DCTCPINFO]); | |
3021 | ||
3022 | dctcp->enabled = !!dinfo->dctcp_enabled; | |
3023 | dctcp->ce_state = dinfo->dctcp_ce_state; | |
3024 | dctcp->alpha = dinfo->dctcp_alpha; | |
3025 | dctcp->ab_ecn = dinfo->dctcp_ab_ecn; | |
3026 | dctcp->ab_tot = dinfo->dctcp_ab_tot; | |
3027 | s.dctcp = dctcp; | |
3028 | } | |
3029 | ||
3030 | if (tb[INET_DIAG_BBRINFO]) { | |
3031 | const void *bbr_info = RTA_DATA(tb[INET_DIAG_BBRINFO]); | |
3032 | int len = min(RTA_PAYLOAD(tb[INET_DIAG_BBRINFO]), | |
3033 | sizeof(*s.bbr_info)); | |
3034 | ||
3035 | s.bbr_info = calloc(1, sizeof(*s.bbr_info)); | |
3036 | if (s.bbr_info && bbr_info) | |
3037 | memcpy(s.bbr_info, bbr_info, len); | |
3038 | } | |
3039 | ||
3040 | if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) { | |
3041 | s.send_bps = (double) info->tcpi_snd_cwnd * | |
3042 | (double)info->tcpi_snd_mss * 8000000. / rtt; | |
3043 | } | |
3044 | ||
3045 | if (info->tcpi_pacing_rate && | |
3046 | info->tcpi_pacing_rate != ~0ULL) { | |
3047 | s.pacing_rate = info->tcpi_pacing_rate * 8.; | |
3048 | ||
3049 | if (info->tcpi_max_pacing_rate && | |
3050 | info->tcpi_max_pacing_rate != ~0ULL) | |
3051 | s.pacing_rate_max = info->tcpi_max_pacing_rate * 8.; | |
3052 | } | |
3053 | s.bytes_acked = info->tcpi_bytes_acked; | |
3054 | s.bytes_received = info->tcpi_bytes_received; | |
3055 | s.segs_out = info->tcpi_segs_out; | |
3056 | s.segs_in = info->tcpi_segs_in; | |
3057 | s.data_segs_out = info->tcpi_data_segs_out; | |
3058 | s.data_segs_in = info->tcpi_data_segs_in; | |
3059 | s.not_sent = info->tcpi_notsent_bytes; | |
3060 | if (info->tcpi_min_rtt && info->tcpi_min_rtt != ~0U) | |
3061 | s.min_rtt = (double) info->tcpi_min_rtt / 1000; | |
3062 | s.delivery_rate = info->tcpi_delivery_rate * 8.; | |
3063 | s.app_limited = info->tcpi_delivery_rate_app_limited; | |
3064 | s.busy_time = info->tcpi_busy_time; | |
3065 | s.rwnd_limited = info->tcpi_rwnd_limited; | |
3066 | s.sndbuf_limited = info->tcpi_sndbuf_limited; | |
3067 | s.delivered = info->tcpi_delivered; | |
3068 | s.delivered_ce = info->tcpi_delivered_ce; | |
3069 | s.dsack_dups = info->tcpi_dsack_dups; | |
3070 | s.reord_seen = info->tcpi_reord_seen; | |
3071 | s.bytes_sent = info->tcpi_bytes_sent; | |
3072 | s.bytes_retrans = info->tcpi_bytes_retrans; | |
3073 | tcp_stats_print(&s); | |
3074 | free(s.dctcp); | |
3075 | free(s.bbr_info); | |
3076 | } | |
3077 | if (tb[INET_DIAG_MD5SIG]) { | |
3078 | struct tcp_diag_md5sig *sig = RTA_DATA(tb[INET_DIAG_MD5SIG]); | |
3079 | int len = RTA_PAYLOAD(tb[INET_DIAG_MD5SIG]); | |
3080 | ||
3081 | out(" md5keys:"); | |
3082 | print_md5sig(sig++); | |
3083 | for (len -= sizeof(*sig); len > 0; len -= sizeof(*sig)) { | |
3084 | out(","); | |
3085 | print_md5sig(sig++); | |
3086 | } | |
3087 | } | |
3088 | if (tb[INET_DIAG_ULP_INFO]) { | |
3089 | struct rtattr *ulpinfo[INET_ULP_INFO_MAX + 1] = { 0 }; | |
3090 | ||
3091 | parse_rtattr_nested(ulpinfo, INET_ULP_INFO_MAX, | |
3092 | tb[INET_DIAG_ULP_INFO]); | |
3093 | ||
3094 | if (ulpinfo[INET_ULP_INFO_NAME]) | |
3095 | out(" tcp-ulp-%s", | |
3096 | rta_getattr_str(ulpinfo[INET_ULP_INFO_NAME])); | |
3097 | ||
3098 | if (ulpinfo[INET_ULP_INFO_TLS]) { | |
3099 | struct rtattr *tlsinfo[TLS_INFO_MAX + 1] = { 0 }; | |
3100 | ||
3101 | parse_rtattr_nested(tlsinfo, TLS_INFO_MAX, | |
3102 | ulpinfo[INET_ULP_INFO_TLS]); | |
3103 | ||
3104 | tcp_tls_version(tlsinfo[TLS_INFO_VERSION]); | |
3105 | tcp_tls_cipher(tlsinfo[TLS_INFO_CIPHER]); | |
3106 | tcp_tls_conf("rxconf", tlsinfo[TLS_INFO_RXCONF]); | |
3107 | tcp_tls_conf("txconf", tlsinfo[TLS_INFO_TXCONF]); | |
3108 | } | |
3109 | if (ulpinfo[INET_ULP_INFO_MPTCP]) { | |
3110 | struct rtattr *sfinfo[MPTCP_SUBFLOW_ATTR_MAX + 1] = | |
3111 | { 0 }; | |
3112 | ||
3113 | parse_rtattr_nested(sfinfo, MPTCP_SUBFLOW_ATTR_MAX, | |
3114 | ulpinfo[INET_ULP_INFO_MPTCP]); | |
3115 | mptcp_subflow_info(sfinfo); | |
3116 | } | |
3117 | } | |
3118 | } | |
3119 | ||
3120 | static const char *format_host_sa(struct sockaddr_storage *sa) | |
3121 | { | |
3122 | union { | |
3123 | struct sockaddr_in sin; | |
3124 | struct sockaddr_in6 sin6; | |
3125 | } *saddr = (void *)sa; | |
3126 | ||
3127 | switch (sa->ss_family) { | |
3128 | case AF_INET: | |
3129 | return format_host(AF_INET, 4, &saddr->sin.sin_addr); | |
3130 | case AF_INET6: | |
3131 | return format_host(AF_INET6, 16, &saddr->sin6.sin6_addr); | |
3132 | default: | |
3133 | return ""; | |
3134 | } | |
3135 | } | |
3136 | ||
3137 | static void sctp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r, | |
3138 | struct rtattr *tb[]) | |
3139 | { | |
3140 | struct sockaddr_storage *sa; | |
3141 | int len; | |
3142 | ||
3143 | print_skmeminfo(tb, INET_DIAG_SKMEMINFO); | |
3144 | ||
3145 | if (tb[INET_DIAG_LOCALS]) { | |
3146 | len = RTA_PAYLOAD(tb[INET_DIAG_LOCALS]); | |
3147 | sa = RTA_DATA(tb[INET_DIAG_LOCALS]); | |
3148 | ||
3149 | out(" locals:%s", format_host_sa(sa)); | |
3150 | for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa)) | |
3151 | out(",%s", format_host_sa(sa)); | |
3152 | ||
3153 | } | |
3154 | if (tb[INET_DIAG_PEERS]) { | |
3155 | len = RTA_PAYLOAD(tb[INET_DIAG_PEERS]); | |
3156 | sa = RTA_DATA(tb[INET_DIAG_PEERS]); | |
3157 | ||
3158 | out(" peers:%s", format_host_sa(sa)); | |
3159 | for (sa++, len -= sizeof(*sa); len > 0; sa++, len -= sizeof(*sa)) | |
3160 | out(",%s", format_host_sa(sa)); | |
3161 | } | |
3162 | if (tb[INET_DIAG_INFO]) { | |
3163 | struct sctp_info *info; | |
3164 | len = RTA_PAYLOAD(tb[INET_DIAG_INFO]); | |
3165 | ||
3166 | /* workaround for older kernels with less fields */ | |
3167 | if (len < sizeof(*info)) { | |
3168 | info = alloca(sizeof(*info)); | |
3169 | memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len); | |
3170 | memset((char *)info + len, 0, sizeof(*info) - len); | |
3171 | } else | |
3172 | info = RTA_DATA(tb[INET_DIAG_INFO]); | |
3173 | ||
3174 | sctp_stats_print(info); | |
3175 | } | |
3176 | } | |
3177 | ||
3178 | static void parse_diag_msg(struct nlmsghdr *nlh, struct sockstat *s) | |
3179 | { | |
3180 | struct rtattr *tb[INET_DIAG_MAX+1]; | |
3181 | struct inet_diag_msg *r = NLMSG_DATA(nlh); | |
3182 | ||
3183 | parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1), | |
3184 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); | |
3185 | ||
3186 | s->state = r->idiag_state; | |
3187 | s->local.family = s->remote.family = r->idiag_family; | |
3188 | s->lport = ntohs(r->id.idiag_sport); | |
3189 | s->rport = ntohs(r->id.idiag_dport); | |
3190 | s->wq = r->idiag_wqueue; | |
3191 | s->rq = r->idiag_rqueue; | |
3192 | s->ino = r->idiag_inode; | |
3193 | s->uid = r->idiag_uid; | |
3194 | s->iface = r->id.idiag_if; | |
3195 | s->sk = cookie_sk_get(&r->id.idiag_cookie[0]); | |
3196 | ||
3197 | s->mark = 0; | |
3198 | if (tb[INET_DIAG_MARK]) | |
3199 | s->mark = rta_getattr_u32(tb[INET_DIAG_MARK]); | |
3200 | s->cgroup_id = 0; | |
3201 | if (tb[INET_DIAG_CGROUP_ID]) | |
3202 | s->cgroup_id = rta_getattr_u64(tb[INET_DIAG_CGROUP_ID]); | |
3203 | if (tb[INET_DIAG_PROTOCOL]) | |
3204 | s->raw_prot = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]); | |
3205 | else | |
3206 | s->raw_prot = 0; | |
3207 | ||
3208 | if (s->local.family == AF_INET) | |
3209 | s->local.bytelen = s->remote.bytelen = 4; | |
3210 | else | |
3211 | s->local.bytelen = s->remote.bytelen = 16; | |
3212 | ||
3213 | memcpy(s->local.data, r->id.idiag_src, s->local.bytelen); | |
3214 | memcpy(s->remote.data, r->id.idiag_dst, s->local.bytelen); | |
3215 | } | |
3216 | ||
3217 | static int inet_show_sock(struct nlmsghdr *nlh, | |
3218 | struct sockstat *s) | |
3219 | { | |
3220 | struct rtattr *tb[INET_DIAG_MAX+1]; | |
3221 | struct inet_diag_msg *r = NLMSG_DATA(nlh); | |
3222 | unsigned char v6only = 0; | |
3223 | ||
3224 | parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr *)(r+1), | |
3225 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); | |
3226 | ||
3227 | if (tb[INET_DIAG_PROTOCOL]) | |
3228 | s->type = rta_getattr_u8(tb[INET_DIAG_PROTOCOL]); | |
3229 | ||
3230 | if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY]) | |
3231 | v6only = rta_getattr_u8(tb[INET_DIAG_SKV6ONLY]); | |
3232 | ||
3233 | inet_stats_print(s, v6only); | |
3234 | ||
3235 | if (show_options) { | |
3236 | struct tcpstat t = {}; | |
3237 | ||
3238 | t.timer = r->idiag_timer; | |
3239 | t.timeout = r->idiag_expires; | |
3240 | t.retrans = r->idiag_retrans; | |
3241 | if (s->type == IPPROTO_SCTP) | |
3242 | sctp_timer_print(&t); | |
3243 | else | |
3244 | tcp_timer_print(&t); | |
3245 | } | |
3246 | ||
3247 | if (show_details) { | |
3248 | sock_details_print(s); | |
3249 | if (s->local.family == AF_INET6 && tb[INET_DIAG_SKV6ONLY]) | |
3250 | out(" v6only:%u", v6only); | |
3251 | ||
3252 | if (tb[INET_DIAG_SHUTDOWN]) { | |
3253 | unsigned char mask; | |
3254 | ||
3255 | mask = rta_getattr_u8(tb[INET_DIAG_SHUTDOWN]); | |
3256 | out(" %c-%c", | |
3257 | mask & 1 ? '-' : '<', mask & 2 ? '-' : '>'); | |
3258 | } | |
3259 | } | |
3260 | ||
3261 | if (show_tos) { | |
3262 | if (tb[INET_DIAG_TOS]) | |
3263 | out(" tos:%#x", rta_getattr_u8(tb[INET_DIAG_TOS])); | |
3264 | if (tb[INET_DIAG_TCLASS]) | |
3265 | out(" tclass:%#x", rta_getattr_u8(tb[INET_DIAG_TCLASS])); | |
3266 | if (tb[INET_DIAG_CLASS_ID]) | |
3267 | out(" class_id:%#x", rta_getattr_u32(tb[INET_DIAG_CLASS_ID])); | |
3268 | } | |
3269 | ||
3270 | if (show_cgroup) { | |
3271 | if (tb[INET_DIAG_CGROUP_ID]) | |
3272 | out(" cgroup:%s", cg_id_to_path(rta_getattr_u64(tb[INET_DIAG_CGROUP_ID]))); | |
3273 | } | |
3274 | ||
3275 | if (show_mem || (show_tcpinfo && s->type != IPPROTO_UDP)) { | |
3276 | if (!oneline) | |
3277 | out("\n\t"); | |
3278 | if (s->type == IPPROTO_SCTP) | |
3279 | sctp_show_info(nlh, r, tb); | |
3280 | else | |
3281 | tcp_show_info(nlh, r, tb); | |
3282 | } | |
3283 | sctp_ino = s->ino; | |
3284 | ||
3285 | return 0; | |
3286 | } | |
3287 | ||
3288 | static int tcpdiag_send(int fd, int protocol, struct filter *f) | |
3289 | { | |
3290 | struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK }; | |
3291 | struct { | |
3292 | struct nlmsghdr nlh; | |
3293 | struct inet_diag_req r; | |
3294 | } req = { | |
3295 | .nlh.nlmsg_len = sizeof(req), | |
3296 | .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST, | |
3297 | .nlh.nlmsg_seq = MAGIC_SEQ, | |
3298 | .r.idiag_family = AF_INET, | |
3299 | .r.idiag_states = f->states, | |
3300 | }; | |
3301 | char *bc = NULL; | |
3302 | int bclen; | |
3303 | struct msghdr msg; | |
3304 | struct rtattr rta; | |
3305 | struct iovec iov[3]; | |
3306 | int iovlen = 1; | |
3307 | ||
3308 | if (protocol == IPPROTO_UDP) | |
3309 | return -1; | |
3310 | ||
3311 | if (protocol == IPPROTO_TCP) | |
3312 | req.nlh.nlmsg_type = TCPDIAG_GETSOCK; | |
3313 | else | |
3314 | req.nlh.nlmsg_type = DCCPDIAG_GETSOCK; | |
3315 | if (show_mem) { | |
3316 | req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1)); | |
3317 | req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1)); | |
3318 | } | |
3319 | ||
3320 | if (show_tcpinfo) { | |
3321 | req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1)); | |
3322 | req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1)); | |
3323 | req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1)); | |
3324 | } | |
3325 | ||
3326 | if (show_tos) { | |
3327 | req.r.idiag_ext |= (1<<(INET_DIAG_TOS-1)); | |
3328 | req.r.idiag_ext |= (1<<(INET_DIAG_TCLASS-1)); | |
3329 | } | |
3330 | ||
3331 | iov[0] = (struct iovec){ | |
3332 | .iov_base = &req, | |
3333 | .iov_len = sizeof(req) | |
3334 | }; | |
3335 | if (f->f) { | |
3336 | bclen = ssfilter_bytecompile(f->f, &bc); | |
3337 | if (bclen) { | |
3338 | rta.rta_type = INET_DIAG_REQ_BYTECODE; | |
3339 | rta.rta_len = RTA_LENGTH(bclen); | |
3340 | iov[1] = (struct iovec){ &rta, sizeof(rta) }; | |
3341 | iov[2] = (struct iovec){ bc, bclen }; | |
3342 | req.nlh.nlmsg_len += RTA_LENGTH(bclen); | |
3343 | iovlen = 3; | |
3344 | } | |
3345 | } | |
3346 | ||
3347 | msg = (struct msghdr) { | |
3348 | .msg_name = (void *)&nladdr, | |
3349 | .msg_namelen = sizeof(nladdr), | |
3350 | .msg_iov = iov, | |
3351 | .msg_iovlen = iovlen, | |
3352 | }; | |
3353 | ||
3354 | if (sendmsg(fd, &msg, 0) < 0) { | |
3355 | close(fd); | |
3356 | return -1; | |
3357 | } | |
3358 | ||
3359 | return 0; | |
3360 | } | |
3361 | ||
3362 | static int sockdiag_send(int family, int fd, int protocol, struct filter *f) | |
3363 | { | |
3364 | struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK }; | |
3365 | DIAG_REQUEST(req, struct inet_diag_req_v2 r); | |
3366 | char *bc = NULL; | |
3367 | int bclen; | |
3368 | struct msghdr msg; | |
3369 | struct rtattr rta; | |
3370 | struct iovec iov[3]; | |
3371 | int iovlen = 1; | |
3372 | ||
3373 | if (family == PF_UNSPEC) | |
3374 | return tcpdiag_send(fd, protocol, f); | |
3375 | ||
3376 | memset(&req.r, 0, sizeof(req.r)); | |
3377 | req.r.sdiag_family = family; | |
3378 | req.r.sdiag_protocol = protocol; | |
3379 | req.r.idiag_states = f->states; | |
3380 | if (show_mem) { | |
3381 | req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1)); | |
3382 | req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1)); | |
3383 | } | |
3384 | ||
3385 | if (show_tcpinfo) { | |
3386 | req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1)); | |
3387 | req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1)); | |
3388 | req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1)); | |
3389 | } | |
3390 | ||
3391 | if (show_tos) { | |
3392 | req.r.idiag_ext |= (1<<(INET_DIAG_TOS-1)); | |
3393 | req.r.idiag_ext |= (1<<(INET_DIAG_TCLASS-1)); | |
3394 | } | |
3395 | ||
3396 | iov[0] = (struct iovec){ | |
3397 | .iov_base = &req, | |
3398 | .iov_len = sizeof(req) | |
3399 | }; | |
3400 | if (f->f) { | |
3401 | bclen = ssfilter_bytecompile(f->f, &bc); | |
3402 | if (bclen) { | |
3403 | rta.rta_type = INET_DIAG_REQ_BYTECODE; | |
3404 | rta.rta_len = RTA_LENGTH(bclen); | |
3405 | iov[1] = (struct iovec){ &rta, sizeof(rta) }; | |
3406 | iov[2] = (struct iovec){ bc, bclen }; | |
3407 | req.nlh.nlmsg_len += RTA_LENGTH(bclen); | |
3408 | iovlen = 3; | |
3409 | } | |
3410 | } | |
3411 | ||
3412 | msg = (struct msghdr) { | |
3413 | .msg_name = (void *)&nladdr, | |
3414 | .msg_namelen = sizeof(nladdr), | |
3415 | .msg_iov = iov, | |
3416 | .msg_iovlen = iovlen, | |
3417 | }; | |
3418 | ||
3419 | if (sendmsg(fd, &msg, 0) < 0) { | |
3420 | close(fd); | |
3421 | return -1; | |
3422 | } | |
3423 | ||
3424 | return 0; | |
3425 | } | |
3426 | ||
3427 | struct inet_diag_arg { | |
3428 | struct filter *f; | |
3429 | int protocol; | |
3430 | struct rtnl_handle *rth; | |
3431 | }; | |
3432 | ||
3433 | static int kill_inet_sock(struct nlmsghdr *h, void *arg, struct sockstat *s) | |
3434 | { | |
3435 | struct inet_diag_msg *d = NLMSG_DATA(h); | |
3436 | struct inet_diag_arg *diag_arg = arg; | |
3437 | struct rtnl_handle *rth = diag_arg->rth; | |
3438 | ||
3439 | DIAG_REQUEST(req, struct inet_diag_req_v2 r); | |
3440 | ||
3441 | req.nlh.nlmsg_type = SOCK_DESTROY; | |
3442 | req.nlh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK; | |
3443 | req.nlh.nlmsg_seq = ++rth->seq; | |
3444 | req.r.sdiag_family = d->idiag_family; | |
3445 | req.r.sdiag_protocol = diag_arg->protocol; | |
3446 | req.r.id = d->id; | |
3447 | ||
3448 | if (diag_arg->protocol == IPPROTO_RAW) { | |
3449 | struct inet_diag_req_raw *raw = (void *)&req.r; | |
3450 | ||
3451 | BUILD_BUG_ON(sizeof(req.r) != sizeof(*raw)); | |
3452 | raw->sdiag_raw_protocol = s->raw_prot; | |
3453 | } | |
3454 | ||
3455 | return rtnl_talk(rth, &req.nlh, NULL); | |
3456 | } | |
3457 | ||
3458 | static int show_one_inet_sock(struct nlmsghdr *h, void *arg) | |
3459 | { | |
3460 | int err; | |
3461 | struct inet_diag_arg *diag_arg = arg; | |
3462 | struct inet_diag_msg *r = NLMSG_DATA(h); | |
3463 | struct sockstat s = {}; | |
3464 | ||
3465 | if (!(diag_arg->f->families & FAMILY_MASK(r->idiag_family))) | |
3466 | return 0; | |
3467 | ||
3468 | parse_diag_msg(h, &s); | |
3469 | s.type = diag_arg->protocol; | |
3470 | ||
3471 | if (diag_arg->f->f && run_ssfilter(diag_arg->f->f, &s) == 0) | |
3472 | return 0; | |
3473 | ||
3474 | if (diag_arg->f->kill && kill_inet_sock(h, arg, &s) != 0) { | |
3475 | if (errno == EOPNOTSUPP || errno == ENOENT) { | |
3476 | /* Socket can't be closed, or is already closed. */ | |
3477 | return 0; | |
3478 | } else { | |
3479 | perror("SOCK_DESTROY answers"); | |
3480 | return -1; | |
3481 | } | |
3482 | } | |
3483 | ||
3484 | err = inet_show_sock(h, &s); | |
3485 | if (err < 0) | |
3486 | return err; | |
3487 | ||
3488 | return 0; | |
3489 | } | |
3490 | ||
3491 | static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol) | |
3492 | { | |
3493 | int err = 0; | |
3494 | struct rtnl_handle rth, rth2; | |
3495 | int family = PF_INET; | |
3496 | struct inet_diag_arg arg = { .f = f, .protocol = protocol }; | |
3497 | ||
3498 | if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG)) | |
3499 | return -1; | |
3500 | ||
3501 | if (f->kill) { | |
3502 | if (rtnl_open_byproto(&rth2, 0, NETLINK_SOCK_DIAG)) { | |
3503 | rtnl_close(&rth); | |
3504 | return -1; | |
3505 | } | |
3506 | arg.rth = &rth2; | |
3507 | } | |
3508 | ||
3509 | rth.dump = MAGIC_SEQ; | |
3510 | rth.dump_fp = dump_fp; | |
3511 | if (preferred_family == PF_INET6) | |
3512 | family = PF_INET6; | |
3513 | ||
3514 | again: | |
3515 | if ((err = sockdiag_send(family, rth.fd, protocol, f))) | |
3516 | goto Exit; | |
3517 | ||
3518 | if ((err = rtnl_dump_filter(&rth, show_one_inet_sock, &arg))) { | |
3519 | if (family != PF_UNSPEC) { | |
3520 | family = PF_UNSPEC; | |
3521 | goto again; | |
3522 | } | |
3523 | goto Exit; | |
3524 | } | |
3525 | if (family == PF_INET && preferred_family != PF_INET) { | |
3526 | family = PF_INET6; | |
3527 | goto again; | |
3528 | } | |
3529 | ||
3530 | Exit: | |
3531 | rtnl_close(&rth); | |
3532 | if (arg.rth) | |
3533 | rtnl_close(arg.rth); | |
3534 | return err; | |
3535 | } | |
3536 | ||
3537 | static int tcp_show_netlink_file(struct filter *f) | |
3538 | { | |
3539 | FILE *fp; | |
3540 | char buf[16384]; | |
3541 | int err = -1; | |
3542 | ||
3543 | if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) { | |
3544 | perror("fopen($TCPDIAG_FILE)"); | |
3545 | return err; | |
3546 | } | |
3547 | ||
3548 | while (1) { | |
3549 | int err2; | |
3550 | size_t status, nitems; | |
3551 | struct nlmsghdr *h = (struct nlmsghdr *)buf; | |
3552 | struct sockstat s = {}; | |
3553 | ||
3554 | status = fread(buf, 1, sizeof(*h), fp); | |
3555 | if (status != sizeof(*h)) { | |
3556 | if (ferror(fp)) | |
3557 | perror("Reading header from $TCPDIAG_FILE"); | |
3558 | if (feof(fp)) | |
3559 | fprintf(stderr, "Unexpected EOF reading $TCPDIAG_FILE"); | |
3560 | break; | |
3561 | } | |
3562 | ||
3563 | nitems = NLMSG_ALIGN(h->nlmsg_len - sizeof(*h)); | |
3564 | status = fread(h+1, 1, nitems, fp); | |
3565 | ||
3566 | if (status != nitems) { | |
3567 | if (ferror(fp)) | |
3568 | perror("Reading $TCPDIAG_FILE"); | |
3569 | if (feof(fp)) | |
3570 | fprintf(stderr, "Unexpected EOF reading $TCPDIAG_FILE"); | |
3571 | break; | |
3572 | } | |
3573 | ||
3574 | /* The only legal exit point */ | |
3575 | if (h->nlmsg_type == NLMSG_DONE) { | |
3576 | err = 0; | |
3577 | break; | |
3578 | } | |
3579 | ||
3580 | if (h->nlmsg_type == NLMSG_ERROR) { | |
3581 | struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h); | |
3582 | ||
3583 | if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) { | |
3584 | fprintf(stderr, "ERROR truncated\n"); | |
3585 | } else { | |
3586 | errno = -err->error; | |
3587 | perror("TCPDIAG answered"); | |
3588 | } | |
3589 | break; | |
3590 | } | |
3591 | ||
3592 | parse_diag_msg(h, &s); | |
3593 | s.type = IPPROTO_TCP; | |
3594 | ||
3595 | if (f && f->f && run_ssfilter(f->f, &s) == 0) | |
3596 | continue; | |
3597 | ||
3598 | err2 = inet_show_sock(h, &s); | |
3599 | if (err2 < 0) { | |
3600 | err = err2; | |
3601 | break; | |
3602 | } | |
3603 | } | |
3604 | ||
3605 | fclose(fp); | |
3606 | return err; | |
3607 | } | |
3608 | ||
3609 | static int tcp_show(struct filter *f) | |
3610 | { | |
3611 | FILE *fp = NULL; | |
3612 | char *buf = NULL; | |
3613 | int bufsize = 1024*1024; | |
3614 | ||
3615 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) | |
3616 | return 0; | |
3617 | ||
3618 | dg_proto = TCP_PROTO; | |
3619 | ||
3620 | if (getenv("TCPDIAG_FILE")) | |
3621 | return tcp_show_netlink_file(f); | |
3622 | ||
3623 | if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT") | |
3624 | && inet_show_netlink(f, NULL, IPPROTO_TCP) == 0) | |
3625 | return 0; | |
3626 | ||
3627 | /* Sigh... We have to parse /proc/net/tcp... */ | |
3628 | while (bufsize >= 64*1024) { | |
3629 | if ((buf = malloc(bufsize)) != NULL) | |
3630 | break; | |
3631 | bufsize /= 2; | |
3632 | } | |
3633 | if (buf == NULL) { | |
3634 | errno = ENOMEM; | |
3635 | return -1; | |
3636 | } | |
3637 | ||
3638 | if (f->families & FAMILY_MASK(AF_INET)) { | |
3639 | if ((fp = net_tcp_open()) == NULL) | |
3640 | goto outerr; | |
3641 | ||
3642 | setbuffer(fp, buf, bufsize); | |
3643 | if (generic_record_read(fp, tcp_show_line, f, AF_INET)) | |
3644 | goto outerr; | |
3645 | fclose(fp); | |
3646 | } | |
3647 | ||
3648 | if ((f->families & FAMILY_MASK(AF_INET6)) && | |
3649 | (fp = net_tcp6_open()) != NULL) { | |
3650 | setbuffer(fp, buf, bufsize); | |
3651 | if (generic_record_read(fp, tcp_show_line, f, AF_INET6)) | |
3652 | goto outerr; | |
3653 | fclose(fp); | |
3654 | } | |
3655 | ||
3656 | free(buf); | |
3657 | return 0; | |
3658 | ||
3659 | outerr: | |
3660 | do { | |
3661 | int saved_errno = errno; | |
3662 | ||
3663 | free(buf); | |
3664 | if (fp) | |
3665 | fclose(fp); | |
3666 | errno = saved_errno; | |
3667 | return -1; | |
3668 | } while (0); | |
3669 | } | |
3670 | ||
3671 | static int dccp_show(struct filter *f) | |
3672 | { | |
3673 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) | |
3674 | return 0; | |
3675 | ||
3676 | if (!getenv("PROC_NET_DCCP") && !getenv("PROC_ROOT") | |
3677 | && inet_show_netlink(f, NULL, IPPROTO_DCCP) == 0) | |
3678 | return 0; | |
3679 | ||
3680 | return 0; | |
3681 | } | |
3682 | ||
3683 | static int sctp_show(struct filter *f) | |
3684 | { | |
3685 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) | |
3686 | return 0; | |
3687 | ||
3688 | if (!getenv("PROC_NET_SCTP") && !getenv("PROC_ROOT") | |
3689 | && inet_show_netlink(f, NULL, IPPROTO_SCTP) == 0) | |
3690 | return 0; | |
3691 | ||
3692 | return 0; | |
3693 | } | |
3694 | ||
3695 | static int dgram_show_line(char *line, const struct filter *f, int family) | |
3696 | { | |
3697 | struct sockstat s = {}; | |
3698 | char *loc, *rem, *data; | |
3699 | char opt[256]; | |
3700 | int n; | |
3701 | ||
3702 | if (proc_inet_split_line(line, &loc, &rem, &data)) | |
3703 | return -1; | |
3704 | ||
3705 | int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0'); | |
3706 | ||
3707 | if (!(f->states & (1 << state))) | |
3708 | return 0; | |
3709 | ||
3710 | proc_parse_inet_addr(loc, rem, family, &s); | |
3711 | ||
3712 | if (f->f && run_ssfilter(f->f, &s) == 0) | |
3713 | return 0; | |
3714 | ||
3715 | opt[0] = 0; | |
3716 | n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n", | |
3717 | &s.state, &s.wq, &s.rq, | |
3718 | &s.uid, &s.ino, | |
3719 | &s.refcnt, &s.sk, opt); | |
3720 | ||
3721 | if (n < 9) | |
3722 | opt[0] = 0; | |
3723 | ||
3724 | s.type = dg_proto == UDP_PROTO ? IPPROTO_UDP : 0; | |
3725 | inet_stats_print(&s, false); | |
3726 | ||
3727 | if (show_details && opt[0]) | |
3728 | out(" opt:\"%s\"", opt); | |
3729 | ||
3730 | return 0; | |
3731 | } | |
3732 | ||
3733 | static int udp_show(struct filter *f) | |
3734 | { | |
3735 | FILE *fp = NULL; | |
3736 | ||
3737 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) | |
3738 | return 0; | |
3739 | ||
3740 | dg_proto = UDP_PROTO; | |
3741 | ||
3742 | if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT") | |
3743 | && inet_show_netlink(f, NULL, IPPROTO_UDP) == 0) | |
3744 | return 0; | |
3745 | ||
3746 | if (f->families&FAMILY_MASK(AF_INET)) { | |
3747 | if ((fp = net_udp_open()) == NULL) | |
3748 | goto outerr; | |
3749 | if (generic_record_read(fp, dgram_show_line, f, AF_INET)) | |
3750 | goto outerr; | |
3751 | fclose(fp); | |
3752 | } | |
3753 | ||
3754 | if ((f->families&FAMILY_MASK(AF_INET6)) && | |
3755 | (fp = net_udp6_open()) != NULL) { | |
3756 | if (generic_record_read(fp, dgram_show_line, f, AF_INET6)) | |
3757 | goto outerr; | |
3758 | fclose(fp); | |
3759 | } | |
3760 | return 0; | |
3761 | ||
3762 | outerr: | |
3763 | do { | |
3764 | int saved_errno = errno; | |
3765 | ||
3766 | if (fp) | |
3767 | fclose(fp); | |
3768 | errno = saved_errno; | |
3769 | return -1; | |
3770 | } while (0); | |
3771 | } | |
3772 | ||
3773 | static int raw_show(struct filter *f) | |
3774 | { | |
3775 | FILE *fp = NULL; | |
3776 | ||
3777 | if (!filter_af_get(f, AF_INET) && !filter_af_get(f, AF_INET6)) | |
3778 | return 0; | |
3779 | ||
3780 | dg_proto = RAW_PROTO; | |
3781 | ||
3782 | if (!getenv("PROC_NET_RAW") && !getenv("PROC_ROOT") && | |
3783 | inet_show_netlink(f, NULL, IPPROTO_RAW) == 0) | |
3784 | return 0; | |
3785 | ||
3786 | if (f->families&FAMILY_MASK(AF_INET)) { | |
3787 | if ((fp = net_raw_open()) == NULL) | |
3788 | goto outerr; | |
3789 | if (generic_record_read(fp, dgram_show_line, f, AF_INET)) | |
3790 | goto outerr; | |
3791 | fclose(fp); | |
3792 | } | |
3793 | ||
3794 | if ((f->families&FAMILY_MASK(AF_INET6)) && | |
3795 | (fp = net_raw6_open()) != NULL) { | |
3796 | if (generic_record_read(fp, dgram_show_line, f, AF_INET6)) | |
3797 | goto outerr; | |
3798 | fclose(fp); | |
3799 | } | |
3800 | return 0; | |
3801 | ||
3802 | outerr: | |
3803 | do { | |
3804 | int saved_errno = errno; | |
3805 | ||
3806 | if (fp) | |
3807 | fclose(fp); | |
3808 | errno = saved_errno; | |
3809 | return -1; | |
3810 | } while (0); | |
3811 | } | |
3812 | ||
3813 | #define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct sockstat)) | |
3814 | ||
3815 | static void unix_list_drop_first(struct sockstat **list) | |
3816 | { | |
3817 | struct sockstat *s = *list; | |
3818 | ||
3819 | (*list) = (*list)->next; | |
3820 | free(s->name); | |
3821 | free(s); | |
3822 | } | |
3823 | ||
3824 | static bool unix_type_skip(struct sockstat *s, struct filter *f) | |
3825 | { | |
3826 | if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB))) | |
3827 | return true; | |
3828 | if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB))) | |
3829 | return true; | |
3830 | if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB))) | |
3831 | return true; | |
3832 | return false; | |
3833 | } | |
3834 | ||
3835 | static void unix_stats_print(struct sockstat *s, struct filter *f) | |
3836 | { | |
3837 | char port_name[30] = {}; | |
3838 | ||
3839 | sock_state_print(s); | |
3840 | ||
3841 | sock_addr_print(s->name ?: "*", " ", | |
3842 | int_to_str(s->lport, port_name), NULL); | |
3843 | sock_addr_print(s->peer_name ?: "*", " ", | |
3844 | int_to_str(s->rport, port_name), NULL); | |
3845 | ||
3846 | proc_ctx_print(s); | |
3847 | } | |
3848 | ||
3849 | static int unix_show_sock(struct nlmsghdr *nlh, void *arg) | |
3850 | { | |
3851 | struct filter *f = (struct filter *)arg; | |
3852 | struct unix_diag_msg *r = NLMSG_DATA(nlh); | |
3853 | struct rtattr *tb[UNIX_DIAG_MAX+1]; | |
3854 | char name[128]; | |
3855 | struct sockstat stat = { .name = "*", .peer_name = "*" }; | |
3856 | ||
3857 | parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr *)(r+1), | |
3858 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); | |
3859 | ||
3860 | stat.type = r->udiag_type; | |
3861 | stat.state = r->udiag_state; | |
3862 | stat.ino = stat.lport = r->udiag_ino; | |
3863 | stat.local.family = stat.remote.family = AF_UNIX; | |
3864 | ||
3865 | if (unix_type_skip(&stat, f)) | |
3866 | return 0; | |
3867 | ||
3868 | if (tb[UNIX_DIAG_RQLEN]) { | |
3869 | struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]); | |
3870 | ||
3871 | stat.rq = rql->udiag_rqueue; | |
3872 | stat.wq = rql->udiag_wqueue; | |
3873 | } | |
3874 | if (tb[UNIX_DIAG_NAME]) { | |
3875 | int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]); | |
3876 | ||
3877 | memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len); | |
3878 | name[len] = '\0'; | |
3879 | if (name[0] == '\0') { | |
3880 | int i; | |
3881 | for (i = 0; i < len; i++) | |
3882 | if (name[i] == '\0') | |
3883 | name[i] = '@'; | |
3884 | } | |
3885 | stat.name = &name[0]; | |
3886 | memcpy(stat.local.data, &stat.name, sizeof(stat.name)); | |
3887 | } | |
3888 | if (tb[UNIX_DIAG_PEER]) | |
3889 | stat.rport = rta_getattr_u32(tb[UNIX_DIAG_PEER]); | |
3890 | ||
3891 | if (f->f && run_ssfilter(f->f, &stat) == 0) | |
3892 | return 0; | |
3893 | ||
3894 | unix_stats_print(&stat, f); | |
3895 | ||
3896 | if (show_mem) | |
3897 | print_skmeminfo(tb, UNIX_DIAG_MEMINFO); | |
3898 | if (show_details) { | |
3899 | if (tb[UNIX_DIAG_SHUTDOWN]) { | |
3900 | unsigned char mask; | |
3901 | ||
3902 | mask = rta_getattr_u8(tb[UNIX_DIAG_SHUTDOWN]); | |
3903 | out(" %c-%c", | |
3904 | mask & 1 ? '-' : '<', mask & 2 ? '-' : '>'); | |
3905 | } | |
3906 | if (tb[UNIX_DIAG_VFS]) { | |
3907 | struct unix_diag_vfs *uv = RTA_DATA(tb[UNIX_DIAG_VFS]); | |
3908 | ||
3909 | out(" ino:%u dev:%u/%u", uv->udiag_vfs_ino, major(uv->udiag_vfs_dev), | |
3910 | minor(uv->udiag_vfs_dev)); | |
3911 | } | |
3912 | if (tb[UNIX_DIAG_ICONS]) { | |
3913 | int len = RTA_PAYLOAD(tb[UNIX_DIAG_ICONS]); | |
3914 | __u32 *peers = RTA_DATA(tb[UNIX_DIAG_ICONS]); | |
3915 | int i; | |
3916 | ||
3917 | out(" peers:"); | |
3918 | for (i = 0; i < len / sizeof(__u32); i++) | |
3919 | out(" %u", peers[i]); | |
3920 | } | |
3921 | } | |
3922 | ||
3923 | return 0; | |
3924 | } | |
3925 | ||
3926 | static int handle_netlink_request(struct filter *f, struct nlmsghdr *req, | |
3927 | size_t size, rtnl_filter_t show_one_sock) | |
3928 | { | |
3929 | int ret = -1; | |
3930 | struct rtnl_handle rth; | |
3931 | ||
3932 | if (rtnl_open_byproto(&rth, 0, NETLINK_SOCK_DIAG)) | |
3933 | return -1; | |
3934 | ||
3935 | rth.dump = MAGIC_SEQ; | |
3936 | ||
3937 | if (rtnl_send(&rth, req, size) < 0) | |
3938 | goto Exit; | |
3939 | ||
3940 | if (rtnl_dump_filter(&rth, show_one_sock, f)) | |
3941 | goto Exit; | |
3942 | ||
3943 | ret = 0; | |
3944 | Exit: | |
3945 | rtnl_close(&rth); | |
3946 | return ret; | |
3947 | } | |
3948 | ||
3949 | static int unix_show_netlink(struct filter *f) | |
3950 | { | |
3951 | DIAG_REQUEST(req, struct unix_diag_req r); | |
3952 | ||
3953 | req.r.sdiag_family = AF_UNIX; | |
3954 | req.r.udiag_states = f->states; | |
3955 | req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN; | |
3956 | if (show_mem) | |
3957 | req.r.udiag_show |= UDIAG_SHOW_MEMINFO; | |
3958 | if (show_details) | |
3959 | req.r.udiag_show |= UDIAG_SHOW_VFS | UDIAG_SHOW_ICONS; | |
3960 | ||
3961 | return handle_netlink_request(f, &req.nlh, sizeof(req), unix_show_sock); | |
3962 | } | |
3963 | ||
3964 | static int unix_show(struct filter *f) | |
3965 | { | |
3966 | FILE *fp; | |
3967 | char buf[256]; | |
3968 | char name[128]; | |
3969 | int newformat = 0; | |
3970 | int cnt; | |
3971 | struct sockstat *list = NULL; | |
3972 | const int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT, | |
3973 | SS_ESTABLISHED, SS_CLOSING }; | |
3974 | ||
3975 | if (!filter_af_get(f, AF_UNIX)) | |
3976 | return 0; | |
3977 | ||
3978 | if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT") | |
3979 | && unix_show_netlink(f) == 0) | |
3980 | return 0; | |
3981 | ||
3982 | if ((fp = net_unix_open()) == NULL) | |
3983 | return -1; | |
3984 | if (!fgets(buf, sizeof(buf), fp)) { | |
3985 | fclose(fp); | |
3986 | return -1; | |
3987 | } | |
3988 | ||
3989 | if (memcmp(buf, "Peer", 4) == 0) | |
3990 | newformat = 1; | |
3991 | cnt = 0; | |
3992 | ||
3993 | while (fgets(buf, sizeof(buf), fp)) { | |
3994 | struct sockstat *u, **insp; | |
3995 | int flags; | |
3996 | ||
3997 | if (!(u = calloc(1, sizeof(*u)))) | |
3998 | break; | |
3999 | ||
4000 | if (sscanf(buf, "%x: %x %x %x %x %x %d %s", | |
4001 | &u->rport, &u->rq, &u->wq, &flags, &u->type, | |
4002 | &u->state, &u->ino, name) < 8) | |
4003 | name[0] = 0; | |
4004 | ||
4005 | u->lport = u->ino; | |
4006 | u->local.family = u->remote.family = AF_UNIX; | |
4007 | ||
4008 | if (flags & (1 << 16)) { | |
4009 | u->state = SS_LISTEN; | |
4010 | } else if (u->state > 0 && | |
4011 | u->state <= ARRAY_SIZE(unix_state_map)) { | |
4012 | u->state = unix_state_map[u->state-1]; | |
4013 | if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport) | |
4014 | u->state = SS_ESTABLISHED; | |
4015 | } | |
4016 | if (unix_type_skip(u, f) || | |
4017 | !(f->states & (1 << u->state))) { | |
4018 | free(u); | |
4019 | continue; | |
4020 | } | |
4021 | ||
4022 | if (!newformat) { | |
4023 | u->rport = 0; | |
4024 | u->rq = 0; | |
4025 | u->wq = 0; | |
4026 | } | |
4027 | ||
4028 | if (name[0]) { | |
4029 | u->name = strdup(name); | |
4030 | if (!u->name) { | |
4031 | free(u); | |
4032 | break; | |
4033 | } | |
4034 | } | |
4035 | ||
4036 | if (u->rport) { | |
4037 | struct sockstat *p; | |
4038 | ||
4039 | for (p = list; p; p = p->next) { | |
4040 | if (u->rport == p->lport) | |
4041 | break; | |
4042 | } | |
4043 | if (!p) | |
4044 | u->peer_name = "?"; | |
4045 | else | |
4046 | u->peer_name = p->name ? : "*"; | |
4047 | } | |
4048 | ||
4049 | if (f->f) { | |
4050 | struct sockstat st = { | |
4051 | .local.family = AF_UNIX, | |
4052 | .remote.family = AF_UNIX, | |
4053 | }; | |
4054 | ||
4055 | memcpy(st.local.data, &u->name, sizeof(u->name)); | |
4056 | /* when parsing the old format rport is set to 0 and | |
4057 | * therefore peer_name remains NULL | |
4058 | */ | |
4059 | if (u->peer_name && strcmp(u->peer_name, "*")) | |
4060 | memcpy(st.remote.data, &u->peer_name, | |
4061 | sizeof(u->peer_name)); | |
4062 | if (run_ssfilter(f->f, &st) == 0) { | |
4063 | free(u->name); | |
4064 | free(u); | |
4065 | continue; | |
4066 | } | |
4067 | } | |
4068 | ||
4069 | insp = &list; | |
4070 | while (*insp) { | |
4071 | if (u->type < (*insp)->type || | |
4072 | (u->type == (*insp)->type && | |
4073 | u->ino < (*insp)->ino)) | |
4074 | break; | |
4075 | insp = &(*insp)->next; | |
4076 | } | |
4077 | u->next = *insp; | |
4078 | *insp = u; | |
4079 | ||
4080 | if (++cnt > MAX_UNIX_REMEMBER) { | |
4081 | while (list) { | |
4082 | unix_stats_print(list, f); | |
4083 | unix_list_drop_first(&list); | |
4084 | } | |
4085 | cnt = 0; | |
4086 | } | |
4087 | } | |
4088 | fclose(fp); | |
4089 | while (list) { | |
4090 | unix_stats_print(list, f); | |
4091 | unix_list_drop_first(&list); | |
4092 | } | |
4093 | ||
4094 | return 0; | |
4095 | } | |
4096 | ||
4097 | static int packet_stats_print(struct sockstat *s, const struct filter *f) | |
4098 | { | |
4099 | const char *addr, *port; | |
4100 | char ll_name[16]; | |
4101 | ||
4102 | s->local.family = s->remote.family = AF_PACKET; | |
4103 | ||
4104 | if (f->f) { | |
4105 | s->local.data[0] = s->prot; | |
4106 | if (run_ssfilter(f->f, s) == 0) | |
4107 | return 1; | |
4108 | } | |
4109 | ||
4110 | sock_state_print(s); | |
4111 | ||
4112 | if (s->prot == 3) | |
4113 | addr = "*"; | |
4114 | else | |
4115 | addr = ll_proto_n2a(htons(s->prot), ll_name, sizeof(ll_name)); | |
4116 | ||
4117 | if (s->iface == 0) | |
4118 | port = "*"; | |
4119 | else | |
4120 | port = xll_index_to_name(s->iface); | |
4121 | ||
4122 | sock_addr_print(addr, ":", port, NULL); | |
4123 | sock_addr_print("", "*", "", NULL); | |
4124 | ||
4125 | proc_ctx_print(s); | |
4126 | ||
4127 | if (show_details) | |
4128 | sock_details_print(s); | |
4129 | ||
4130 | return 0; | |
4131 | } | |
4132 | ||
4133 | static void packet_show_ring(struct packet_diag_ring *ring) | |
4134 | { | |
4135 | out("blk_size:%d", ring->pdr_block_size); | |
4136 | out(",blk_nr:%d", ring->pdr_block_nr); | |
4137 | out(",frm_size:%d", ring->pdr_frame_size); | |
4138 | out(",frm_nr:%d", ring->pdr_frame_nr); | |
4139 | out(",tmo:%d", ring->pdr_retire_tmo); | |
4140 | out(",features:0x%x", ring->pdr_features); | |
4141 | } | |
4142 | ||
4143 | static int packet_show_sock(struct nlmsghdr *nlh, void *arg) | |
4144 | { | |
4145 | const struct filter *f = arg; | |
4146 | struct packet_diag_msg *r = NLMSG_DATA(nlh); | |
4147 | struct packet_diag_info *pinfo = NULL; | |
4148 | struct packet_diag_ring *ring_rx = NULL, *ring_tx = NULL; | |
4149 | struct rtattr *tb[PACKET_DIAG_MAX+1]; | |
4150 | struct sockstat stat = {}; | |
4151 | uint32_t fanout = 0; | |
4152 | bool has_fanout = false; | |
4153 | ||
4154 | parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr *)(r+1), | |
4155 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); | |
4156 | ||
4157 | /* use /proc/net/packet if all info are not available */ | |
4158 | if (!tb[PACKET_DIAG_MEMINFO]) | |
4159 | return -1; | |
4160 | ||
4161 | stat.type = r->pdiag_type; | |
4162 | stat.prot = r->pdiag_num; | |
4163 | stat.ino = r->pdiag_ino; | |
4164 | stat.state = SS_CLOSE; | |
4165 | stat.sk = cookie_sk_get(&r->pdiag_cookie[0]); | |
4166 | ||
4167 | if (tb[PACKET_DIAG_MEMINFO]) { | |
4168 | __u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]); | |
4169 | ||
4170 | stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC]; | |
4171 | } | |
4172 | ||
4173 | if (tb[PACKET_DIAG_INFO]) { | |
4174 | pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]); | |
4175 | stat.lport = stat.iface = pinfo->pdi_index; | |
4176 | } | |
4177 | ||
4178 | if (tb[PACKET_DIAG_UID]) | |
4179 | stat.uid = rta_getattr_u32(tb[PACKET_DIAG_UID]); | |
4180 | ||
4181 | if (tb[PACKET_DIAG_RX_RING]) | |
4182 | ring_rx = RTA_DATA(tb[PACKET_DIAG_RX_RING]); | |
4183 | ||
4184 | if (tb[PACKET_DIAG_TX_RING]) | |
4185 | ring_tx = RTA_DATA(tb[PACKET_DIAG_TX_RING]); | |
4186 | ||
4187 | if (tb[PACKET_DIAG_FANOUT]) { | |
4188 | has_fanout = true; | |
4189 | fanout = rta_getattr_u32(tb[PACKET_DIAG_FANOUT]); | |
4190 | } | |
4191 | ||
4192 | if (packet_stats_print(&stat, f)) | |
4193 | return 0; | |
4194 | ||
4195 | if (show_details) { | |
4196 | if (pinfo) { | |
4197 | if (oneline) | |
4198 | out(" ver:%d", pinfo->pdi_version); | |
4199 | else | |
4200 | out("\n\tver:%d", pinfo->pdi_version); | |
4201 | out(" cpy_thresh:%d", pinfo->pdi_copy_thresh); | |
4202 | out(" flags( "); | |
4203 | if (pinfo->pdi_flags & PDI_RUNNING) | |
4204 | out("running"); | |
4205 | if (pinfo->pdi_flags & PDI_AUXDATA) | |
4206 | out(" auxdata"); | |
4207 | if (pinfo->pdi_flags & PDI_ORIGDEV) | |
4208 | out(" origdev"); | |
4209 | if (pinfo->pdi_flags & PDI_VNETHDR) | |
4210 | out(" vnethdr"); | |
4211 | if (pinfo->pdi_flags & PDI_LOSS) | |
4212 | out(" loss"); | |
4213 | if (!pinfo->pdi_flags) | |
4214 | out("0"); | |
4215 | out(" )"); | |
4216 | } | |
4217 | if (ring_rx) { | |
4218 | if (oneline) | |
4219 | out(" ring_rx("); | |
4220 | else | |
4221 | out("\n\tring_rx("); | |
4222 | packet_show_ring(ring_rx); | |
4223 | out(")"); | |
4224 | } | |
4225 | if (ring_tx) { | |
4226 | if (oneline) | |
4227 | out(" ring_tx("); | |
4228 | else | |
4229 | out("\n\tring_tx("); | |
4230 | packet_show_ring(ring_tx); | |
4231 | out(")"); | |
4232 | } | |
4233 | if (has_fanout) { | |
4234 | uint16_t type = (fanout >> 16) & 0xffff; | |
4235 | ||
4236 | if (oneline) | |
4237 | out(" fanout("); | |
4238 | else | |
4239 | out("\n\tfanout("); | |
4240 | out("id:%d,", fanout & 0xffff); | |
4241 | out("type:"); | |
4242 | ||
4243 | if (type == 0) | |
4244 | out("hash"); | |
4245 | else if (type == 1) | |
4246 | out("lb"); | |
4247 | else if (type == 2) | |
4248 | out("cpu"); | |
4249 | else if (type == 3) | |
4250 | out("roll"); | |
4251 | else if (type == 4) | |
4252 | out("random"); | |
4253 | else if (type == 5) | |
4254 | out("qm"); | |
4255 | else | |
4256 | out("0x%x", type); | |
4257 | ||
4258 | out(")"); | |
4259 | } | |
4260 | } | |
4261 | ||
4262 | if (show_bpf && tb[PACKET_DIAG_FILTER]) { | |
4263 | struct sock_filter *fil = | |
4264 | RTA_DATA(tb[PACKET_DIAG_FILTER]); | |
4265 | int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) / | |
4266 | sizeof(struct sock_filter); | |
4267 | ||
4268 | if (oneline) | |
4269 | out(" bpf filter (%d): ", num); | |
4270 | else | |
4271 | out("\n\tbpf filter (%d): ", num); | |
4272 | while (num) { | |
4273 | out(" 0x%02x %u %u %u,", | |
4274 | fil->code, fil->jt, fil->jf, fil->k); | |
4275 | num--; | |
4276 | fil++; | |
4277 | } | |
4278 | } | |
4279 | ||
4280 | if (show_mem) | |
4281 | print_skmeminfo(tb, PACKET_DIAG_MEMINFO); | |
4282 | return 0; | |
4283 | } | |
4284 | ||
4285 | static int packet_show_netlink(struct filter *f) | |
4286 | { | |
4287 | DIAG_REQUEST(req, struct packet_diag_req r); | |
4288 | ||
4289 | req.r.sdiag_family = AF_PACKET; | |
4290 | req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO | | |
4291 | PACKET_SHOW_FILTER | PACKET_SHOW_RING_CFG | PACKET_SHOW_FANOUT; | |
4292 | ||
4293 | return handle_netlink_request(f, &req.nlh, sizeof(req), packet_show_sock); | |
4294 | } | |
4295 | ||
4296 | static int packet_show_line(char *buf, const struct filter *f, int fam) | |
4297 | { | |
4298 | unsigned long long sk; | |
4299 | struct sockstat stat = {}; | |
4300 | int type, prot, iface, state, rq, uid, ino; | |
4301 | ||
4302 | sscanf(buf, "%llx %*d %d %x %d %d %u %u %u", | |
4303 | &sk, | |
4304 | &type, &prot, &iface, &state, | |
4305 | &rq, &uid, &ino); | |
4306 | ||
4307 | if (stat.type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB))) | |
4308 | return 0; | |
4309 | if (stat.type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB))) | |
4310 | return 0; | |
4311 | ||
4312 | stat.type = type; | |
4313 | stat.prot = prot; | |
4314 | stat.lport = stat.iface = iface; | |
4315 | stat.state = state; | |
4316 | stat.rq = rq; | |
4317 | stat.uid = uid; | |
4318 | stat.ino = ino; | |
4319 | stat.state = SS_CLOSE; | |
4320 | ||
4321 | if (packet_stats_print(&stat, f)) | |
4322 | return 0; | |
4323 | ||
4324 | return 0; | |
4325 | } | |
4326 | ||
4327 | static int packet_show(struct filter *f) | |
4328 | { | |
4329 | FILE *fp; | |
4330 | int rc = 0; | |
4331 | ||
4332 | if (!filter_af_get(f, AF_PACKET) || !(f->states & (1 << SS_CLOSE))) | |
4333 | return 0; | |
4334 | ||
4335 | if (!getenv("PROC_NET_PACKET") && !getenv("PROC_ROOT") && | |
4336 | packet_show_netlink(f) == 0) | |
4337 | return 0; | |
4338 | ||
4339 | if ((fp = net_packet_open()) == NULL) | |
4340 | return -1; | |
4341 | if (generic_record_read(fp, packet_show_line, f, AF_PACKET)) | |
4342 | rc = -1; | |
4343 | ||
4344 | fclose(fp); | |
4345 | return rc; | |
4346 | } | |
4347 | ||
4348 | static int xdp_stats_print(struct sockstat *s, const struct filter *f) | |
4349 | { | |
4350 | const char *addr, *port; | |
4351 | char q_str[16]; | |
4352 | ||
4353 | s->local.family = s->remote.family = AF_XDP; | |
4354 | ||
4355 | if (f->f) { | |
4356 | if (run_ssfilter(f->f, s) == 0) | |
4357 | return 1; | |
4358 | } | |
4359 | ||
4360 | sock_state_print(s); | |
4361 | ||
4362 | if (s->iface) { | |
4363 | addr = xll_index_to_name(s->iface); | |
4364 | snprintf(q_str, sizeof(q_str), "q%d", s->lport); | |
4365 | port = q_str; | |
4366 | sock_addr_print(addr, ":", port, NULL); | |
4367 | } else { | |
4368 | sock_addr_print("", "*", "", NULL); | |
4369 | } | |
4370 | ||
4371 | sock_addr_print("", "*", "", NULL); | |
4372 | ||
4373 | proc_ctx_print(s); | |
4374 | ||
4375 | if (show_details) | |
4376 | sock_details_print(s); | |
4377 | ||
4378 | return 0; | |
4379 | } | |
4380 | ||
4381 | static void xdp_show_ring(const char *name, struct xdp_diag_ring *ring) | |
4382 | { | |
4383 | if (oneline) | |
4384 | out(" %s(", name); | |
4385 | else | |
4386 | out("\n\t%s(", name); | |
4387 | out("entries:%u", ring->entries); | |
4388 | out(")"); | |
4389 | } | |
4390 | ||
4391 | static void xdp_show_umem(struct xdp_diag_umem *umem, struct xdp_diag_ring *fr, | |
4392 | struct xdp_diag_ring *cr) | |
4393 | { | |
4394 | if (oneline) | |
4395 | out(" tumem("); | |
4396 | else | |
4397 | out("\n\tumem("); | |
4398 | out("id:%u", umem->id); | |
4399 | out(",size:%llu", umem->size); | |
4400 | out(",num_pages:%u", umem->num_pages); | |
4401 | out(",chunk_size:%u", umem->chunk_size); | |
4402 | out(",headroom:%u", umem->headroom); | |
4403 | out(",ifindex:%u", umem->ifindex); | |
4404 | out(",qid:%u", umem->queue_id); | |
4405 | out(",zc:%u", umem->flags & XDP_DU_F_ZEROCOPY); | |
4406 | out(",refs:%u", umem->refs); | |
4407 | out(")"); | |
4408 | ||
4409 | if (fr) | |
4410 | xdp_show_ring("fr", fr); | |
4411 | if (cr) | |
4412 | xdp_show_ring("cr", cr); | |
4413 | } | |
4414 | ||
4415 | static int xdp_show_sock(struct nlmsghdr *nlh, void *arg) | |
4416 | { | |
4417 | struct xdp_diag_ring *rx = NULL, *tx = NULL, *fr = NULL, *cr = NULL; | |
4418 | struct xdp_diag_msg *msg = NLMSG_DATA(nlh); | |
4419 | struct rtattr *tb[XDP_DIAG_MAX + 1]; | |
4420 | struct xdp_diag_info *info = NULL; | |
4421 | struct xdp_diag_umem *umem = NULL; | |
4422 | const struct filter *f = arg; | |
4423 | struct sockstat stat = {}; | |
4424 | ||
4425 | parse_rtattr(tb, XDP_DIAG_MAX, (struct rtattr *)(msg + 1), | |
4426 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*msg))); | |
4427 | ||
4428 | stat.type = msg->xdiag_type; | |
4429 | stat.ino = msg->xdiag_ino; | |
4430 | stat.state = SS_CLOSE; | |
4431 | stat.sk = cookie_sk_get(&msg->xdiag_cookie[0]); | |
4432 | ||
4433 | if (tb[XDP_DIAG_INFO]) { | |
4434 | info = RTA_DATA(tb[XDP_DIAG_INFO]); | |
4435 | stat.iface = info->ifindex; | |
4436 | stat.lport = info->queue_id; | |
4437 | } | |
4438 | ||
4439 | if (tb[XDP_DIAG_UID]) | |
4440 | stat.uid = rta_getattr_u32(tb[XDP_DIAG_UID]); | |
4441 | if (tb[XDP_DIAG_RX_RING]) | |
4442 | rx = RTA_DATA(tb[XDP_DIAG_RX_RING]); | |
4443 | if (tb[XDP_DIAG_TX_RING]) | |
4444 | tx = RTA_DATA(tb[XDP_DIAG_TX_RING]); | |
4445 | if (tb[XDP_DIAG_UMEM]) | |
4446 | umem = RTA_DATA(tb[XDP_DIAG_UMEM]); | |
4447 | if (tb[XDP_DIAG_UMEM_FILL_RING]) | |
4448 | fr = RTA_DATA(tb[XDP_DIAG_UMEM_FILL_RING]); | |
4449 | if (tb[XDP_DIAG_UMEM_COMPLETION_RING]) | |
4450 | cr = RTA_DATA(tb[XDP_DIAG_UMEM_COMPLETION_RING]); | |
4451 | if (tb[XDP_DIAG_MEMINFO]) { | |
4452 | __u32 *skmeminfo = RTA_DATA(tb[XDP_DIAG_MEMINFO]); | |
4453 | ||
4454 | stat.rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC]; | |
4455 | } | |
4456 | ||
4457 | if (xdp_stats_print(&stat, f)) | |
4458 | return 0; | |
4459 | ||
4460 | if (show_details) { | |
4461 | if (rx) | |
4462 | xdp_show_ring("rx", rx); | |
4463 | if (tx) | |
4464 | xdp_show_ring("tx", tx); | |
4465 | if (umem) | |
4466 | xdp_show_umem(umem, fr, cr); | |
4467 | } | |
4468 | ||
4469 | if (show_mem) | |
4470 | print_skmeminfo(tb, XDP_DIAG_MEMINFO); // really? | |
4471 | ||
4472 | ||
4473 | return 0; | |
4474 | } | |
4475 | ||
4476 | static int xdp_show(struct filter *f) | |
4477 | { | |
4478 | DIAG_REQUEST(req, struct xdp_diag_req r); | |
4479 | ||
4480 | if (!filter_af_get(f, AF_XDP) || !(f->states & (1 << SS_CLOSE))) | |
4481 | return 0; | |
4482 | ||
4483 | req.r.sdiag_family = AF_XDP; | |
4484 | req.r.xdiag_show = XDP_SHOW_INFO | XDP_SHOW_RING_CFG | XDP_SHOW_UMEM | | |
4485 | XDP_SHOW_MEMINFO; | |
4486 | ||
4487 | return handle_netlink_request(f, &req.nlh, sizeof(req), xdp_show_sock); | |
4488 | } | |
4489 | ||
4490 | static int netlink_show_one(struct filter *f, | |
4491 | int prot, int pid, unsigned int groups, | |
4492 | int state, int dst_pid, unsigned int dst_group, | |
4493 | int rq, int wq, | |
4494 | unsigned long long sk, unsigned long long cb) | |
4495 | { | |
4496 | struct sockstat st = { | |
4497 | .state = SS_CLOSE, | |
4498 | .rq = rq, | |
4499 | .wq = wq, | |
4500 | .local.family = AF_NETLINK, | |
4501 | .remote.family = AF_NETLINK, | |
4502 | }; | |
4503 | ||
4504 | SPRINT_BUF(prot_buf) = {}; | |
4505 | const char *prot_name; | |
4506 | char procname[64] = {}; | |
4507 | ||
4508 | if (f->f) { | |
4509 | st.rport = -1; | |
4510 | st.lport = pid; | |
4511 | st.local.data[0] = prot; | |
4512 | if (run_ssfilter(f->f, &st) == 0) | |
4513 | return 1; | |
4514 | } | |
4515 | ||
4516 | sock_state_print(&st); | |
4517 | ||
4518 | prot_name = nl_proto_n2a(prot, prot_buf, sizeof(prot_buf)); | |
4519 | ||
4520 | if (pid == -1) { | |
4521 | procname[0] = '*'; | |
4522 | } else if (!numeric) { | |
4523 | int done = 0; | |
4524 | ||
4525 | if (!pid) { | |
4526 | done = 1; | |
4527 | strncpy(procname, "kernel", 7); | |
4528 | } else if (pid > 0) { | |
4529 | FILE *fp; | |
4530 | ||
4531 | snprintf(procname, sizeof(procname), "%s/%d/stat", | |
4532 | getenv("PROC_ROOT") ? : "/proc", pid); | |
4533 | if ((fp = fopen(procname, "r")) != NULL) { | |
4534 | if (fscanf(fp, "%*d (%[^)])", procname) == 1) { | |
4535 | snprintf(procname+strlen(procname), | |
4536 | sizeof(procname)-strlen(procname), | |
4537 | "/%d", pid); | |
4538 | done = 1; | |
4539 | } | |
4540 | fclose(fp); | |
4541 | } | |
4542 | } | |
4543 | if (!done) | |
4544 | int_to_str(pid, procname); | |
4545 | } else { | |
4546 | int_to_str(pid, procname); | |
4547 | } | |
4548 | ||
4549 | sock_addr_print(prot_name, ":", procname, NULL); | |
4550 | ||
4551 | if (state == NETLINK_CONNECTED) { | |
4552 | char dst_group_buf[30]; | |
4553 | char dst_pid_buf[30]; | |
4554 | ||
4555 | sock_addr_print(int_to_str(dst_group, dst_group_buf), ":", | |
4556 | int_to_str(dst_pid, dst_pid_buf), NULL); | |
4557 | } else { | |
4558 | sock_addr_print("", "*", "", NULL); | |
4559 | } | |
4560 | ||
4561 | char *pid_context = NULL; | |
4562 | ||
4563 | if (show_proc_ctx) { | |
4564 | /* The pid value will either be: | |
4565 | * 0 if destination kernel - show kernel initial context. | |
4566 | * A valid process pid - use getpidcon. | |
4567 | * A unique value allocated by the kernel or netlink user | |
4568 | * to the process - show context as "not available". | |
4569 | */ | |
4570 | if (!pid) | |
4571 | security_get_initial_context("kernel", &pid_context); | |
4572 | else if (pid > 0) | |
4573 | getpidcon(pid, &pid_context); | |
4574 | ||
4575 | out(" proc_ctx=%s", pid_context ? : "unavailable"); | |
4576 | free(pid_context); | |
4577 | } | |
4578 | ||
4579 | if (show_details) { | |
4580 | out(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups); | |
4581 | } | |
4582 | ||
4583 | return 0; | |
4584 | } | |
4585 | ||
4586 | static int netlink_show_sock(struct nlmsghdr *nlh, void *arg) | |
4587 | { | |
4588 | struct filter *f = (struct filter *)arg; | |
4589 | struct netlink_diag_msg *r = NLMSG_DATA(nlh); | |
4590 | struct rtattr *tb[NETLINK_DIAG_MAX+1]; | |
4591 | int rq = 0, wq = 0; | |
4592 | unsigned long groups = 0; | |
4593 | ||
4594 | parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr *)(r+1), | |
4595 | nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r))); | |
4596 | ||
4597 | if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS])) | |
4598 | groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]); | |
4599 | ||
4600 | if (tb[NETLINK_DIAG_MEMINFO]) { | |
4601 | const __u32 *skmeminfo; | |
4602 | ||
4603 | skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]); | |
4604 | ||
4605 | rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC]; | |
4606 | wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC]; | |
4607 | } | |
4608 | ||
4609 | if (netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups, | |
4610 | r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group, | |
4611 | rq, wq, 0, 0)) { | |
4612 | return 0; | |
4613 | } | |
4614 | ||
4615 | if (show_mem) { | |
4616 | out("\t"); | |
4617 | print_skmeminfo(tb, NETLINK_DIAG_MEMINFO); | |
4618 | } | |
4619 | ||
4620 | return 0; | |
4621 | } | |
4622 | ||
4623 | static int netlink_show_netlink(struct filter *f) | |
4624 | { | |
4625 | DIAG_REQUEST(req, struct netlink_diag_req r); | |
4626 | ||
4627 | req.r.sdiag_family = AF_NETLINK; | |
4628 | req.r.sdiag_protocol = NDIAG_PROTO_ALL; | |
4629 | req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO; | |
4630 | ||
4631 | return handle_netlink_request(f, &req.nlh, sizeof(req), netlink_show_sock); | |
4632 | } | |
4633 | ||
4634 | static int netlink_show(struct filter *f) | |
4635 | { | |
4636 | FILE *fp; | |
4637 | char buf[256]; | |
4638 | int prot, pid; | |
4639 | unsigned int groups; | |
4640 | int rq, wq, rc; | |
4641 | unsigned long long sk, cb; | |
4642 | ||
4643 | if (!filter_af_get(f, AF_NETLINK) || !(f->states & (1 << SS_CLOSE))) | |
4644 | return 0; | |
4645 | ||
4646 | if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") && | |
4647 | netlink_show_netlink(f) == 0) | |
4648 | return 0; | |
4649 | ||
4650 | if ((fp = net_netlink_open()) == NULL) | |
4651 | return -1; | |
4652 | if (!fgets(buf, sizeof(buf), fp)) { | |
4653 | fclose(fp); | |
4654 | return -1; | |
4655 | } | |
4656 | ||
4657 | while (fgets(buf, sizeof(buf), fp)) { | |
4658 | sscanf(buf, "%llx %d %d %x %d %d %llx %d", | |
4659 | &sk, | |
4660 | &prot, &pid, &groups, &rq, &wq, &cb, &rc); | |
4661 | ||
4662 | netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb); | |
4663 | } | |
4664 | ||
4665 | fclose(fp); | |
4666 | return 0; | |
4667 | } | |
4668 | ||
4669 | static bool vsock_type_skip(struct sockstat *s, struct filter *f) | |
4670 | { | |
4671 | if (s->type == SOCK_STREAM && !(f->dbs & (1 << VSOCK_ST_DB))) | |
4672 | return true; | |
4673 | if (s->type == SOCK_DGRAM && !(f->dbs & (1 << VSOCK_DG_DB))) | |
4674 | return true; | |
4675 | return false; | |
4676 | } | |
4677 | ||
4678 | static void vsock_addr_print(inet_prefix *a, __u32 port) | |
4679 | { | |
4680 | char cid_str[sizeof("4294967295")]; | |
4681 | char port_str[sizeof("4294967295")]; | |
4682 | __u32 cid; | |
4683 | ||
4684 | memcpy(&cid, a->data, sizeof(cid)); | |
4685 | ||
4686 | if (cid == ~(__u32)0) | |
4687 | snprintf(cid_str, sizeof(cid_str), "*"); | |
4688 | else | |
4689 | snprintf(cid_str, sizeof(cid_str), "%u", cid); | |
4690 | ||
4691 | if (port == ~(__u32)0) | |
4692 | snprintf(port_str, sizeof(port_str), "*"); | |
4693 | else | |
4694 | snprintf(port_str, sizeof(port_str), "%u", port); | |
4695 | ||
4696 | sock_addr_print(cid_str, ":", port_str, NULL); | |
4697 | } | |
4698 | ||
4699 | static void vsock_stats_print(struct sockstat *s, struct filter *f) | |
4700 | { | |
4701 | sock_state_print(s); | |
4702 | ||
4703 | vsock_addr_print(&s->local, s->lport); | |
4704 | vsock_addr_print(&s->remote, s->rport); | |
4705 | ||
4706 | proc_ctx_print(s); | |
4707 | } | |
4708 | ||
4709 | static int vsock_show_sock(struct nlmsghdr *nlh, void *arg) | |
4710 | { | |
4711 | struct filter *f = (struct filter *)arg; | |
4712 | struct vsock_diag_msg *r = NLMSG_DATA(nlh); | |
4713 | struct sockstat stat = { | |
4714 | .type = r->vdiag_type, | |
4715 | .lport = r->vdiag_src_port, | |
4716 | .rport = r->vdiag_dst_port, | |
4717 | .state = r->vdiag_state, | |
4718 | .ino = r->vdiag_ino, | |
4719 | }; | |
4720 | ||
4721 | vsock_set_inet_prefix(&stat.local, r->vdiag_src_cid); | |
4722 | vsock_set_inet_prefix(&stat.remote, r->vdiag_dst_cid); | |
4723 | ||
4724 | if (vsock_type_skip(&stat, f)) | |
4725 | return 0; | |
4726 | ||
4727 | if (f->f && run_ssfilter(f->f, &stat) == 0) | |
4728 | return 0; | |
4729 | ||
4730 | vsock_stats_print(&stat, f); | |
4731 | ||
4732 | return 0; | |
4733 | } | |
4734 | ||
4735 | static int vsock_show(struct filter *f) | |
4736 | { | |
4737 | DIAG_REQUEST(req, struct vsock_diag_req r); | |
4738 | ||
4739 | if (!filter_af_get(f, AF_VSOCK)) | |
4740 | return 0; | |
4741 | ||
4742 | req.r.sdiag_family = AF_VSOCK; | |
4743 | req.r.vdiag_states = f->states; | |
4744 | ||
4745 | return handle_netlink_request(f, &req.nlh, sizeof(req), vsock_show_sock); | |
4746 | } | |
4747 | ||
4748 | static void tipc_sock_addr_print(struct rtattr *net_addr, struct rtattr *id) | |
4749 | { | |
4750 | uint32_t node = rta_getattr_u32(net_addr); | |
4751 | uint32_t identity = rta_getattr_u32(id); | |
4752 | ||
4753 | SPRINT_BUF(addr) = {}; | |
4754 | SPRINT_BUF(port) = {}; | |
4755 | ||
4756 | sprintf(addr, "%u", node); | |
4757 | sprintf(port, "%u", identity); | |
4758 | sock_addr_print(addr, ":", port, NULL); | |
4759 | ||
4760 | } | |
4761 | ||
4762 | static int tipc_show_sock(struct nlmsghdr *nlh, void *arg) | |
4763 | { | |
4764 | struct rtattr *stat[TIPC_NLA_SOCK_STAT_MAX + 1] = {}; | |
4765 | struct rtattr *attrs[TIPC_NLA_SOCK_MAX + 1] = {}; | |
4766 | struct rtattr *con[TIPC_NLA_CON_MAX + 1] = {}; | |
4767 | struct rtattr *info[TIPC_NLA_MAX + 1] = {}; | |
4768 | struct rtattr *msg_ref; | |
4769 | struct sockstat ss = {}; | |
4770 | ||
4771 | parse_rtattr(info, TIPC_NLA_MAX, NLMSG_DATA(nlh), | |
4772 | NLMSG_PAYLOAD(nlh, 0)); | |
4773 | ||
4774 | if (!info[TIPC_NLA_SOCK]) | |
4775 | return 0; | |
4776 | ||
4777 | msg_ref = info[TIPC_NLA_SOCK]; | |
4778 | parse_rtattr(attrs, TIPC_NLA_SOCK_MAX, RTA_DATA(msg_ref), | |
4779 | RTA_PAYLOAD(msg_ref)); | |
4780 | ||
4781 | msg_ref = attrs[TIPC_NLA_SOCK_STAT]; | |
4782 | parse_rtattr(stat, TIPC_NLA_SOCK_STAT_MAX, | |
4783 | RTA_DATA(msg_ref), RTA_PAYLOAD(msg_ref)); | |
4784 | ||
4785 | ||
4786 | ss.local.family = AF_TIPC; | |
4787 | ss.type = rta_getattr_u32(attrs[TIPC_NLA_SOCK_TYPE]); | |
4788 | ss.state = rta_getattr_u32(attrs[TIPC_NLA_SOCK_TIPC_STATE]); | |
4789 | ss.uid = rta_getattr_u32(attrs[TIPC_NLA_SOCK_UID]); | |
4790 | ss.ino = rta_getattr_u32(attrs[TIPC_NLA_SOCK_INO]); | |
4791 | ss.rq = rta_getattr_u32(stat[TIPC_NLA_SOCK_STAT_RCVQ]); | |
4792 | ss.wq = rta_getattr_u32(stat[TIPC_NLA_SOCK_STAT_SENDQ]); | |
4793 | ss.sk = rta_getattr_u64(attrs[TIPC_NLA_SOCK_COOKIE]); | |
4794 | ||
4795 | sock_state_print (&ss); | |
4796 | ||
4797 | tipc_sock_addr_print(attrs[TIPC_NLA_SOCK_ADDR], | |
4798 | attrs[TIPC_NLA_SOCK_REF]); | |
4799 | ||
4800 | msg_ref = attrs[TIPC_NLA_SOCK_CON]; | |
4801 | if (msg_ref) { | |
4802 | parse_rtattr(con, TIPC_NLA_CON_MAX, | |
4803 | RTA_DATA(msg_ref), RTA_PAYLOAD(msg_ref)); | |
4804 | ||
4805 | tipc_sock_addr_print(con[TIPC_NLA_CON_NODE], | |
4806 | con[TIPC_NLA_CON_SOCK]); | |
4807 | } else | |
4808 | sock_addr_print("", "-", "", NULL); | |
4809 | ||
4810 | if (show_details) | |
4811 | sock_details_print(&ss); | |
4812 | ||
4813 | proc_ctx_print(&ss); | |
4814 | ||
4815 | if (show_tipcinfo) { | |
4816 | if (oneline) | |
4817 | out(" type:%s", stype_nameg[ss.type]); | |
4818 | else | |
4819 | out("\n type:%s", stype_nameg[ss.type]); | |
4820 | out(" cong:%s ", | |
4821 | stat[TIPC_NLA_SOCK_STAT_LINK_CONG] ? "link" : | |
4822 | stat[TIPC_NLA_SOCK_STAT_CONN_CONG] ? "conn" : "none"); | |
4823 | out(" drop:%d ", | |
4824 | rta_getattr_u32(stat[TIPC_NLA_SOCK_STAT_DROP])); | |
4825 | ||
4826 | if (attrs[TIPC_NLA_SOCK_HAS_PUBL]) | |
4827 | out(" publ"); | |
4828 | ||
4829 | if (con[TIPC_NLA_CON_FLAG]) | |
4830 | out(" via {%u,%u} ", | |
4831 | rta_getattr_u32(con[TIPC_NLA_CON_TYPE]), | |
4832 | rta_getattr_u32(con[TIPC_NLA_CON_INST])); | |
4833 | } | |
4834 | ||
4835 | return 0; | |
4836 | } | |
4837 | ||
4838 | static int tipc_show(struct filter *f) | |
4839 | { | |
4840 | DIAG_REQUEST(req, struct tipc_sock_diag_req r); | |
4841 | ||
4842 | memset(&req.r, 0, sizeof(req.r)); | |
4843 | req.r.sdiag_family = AF_TIPC; | |
4844 | req.r.tidiag_states = f->states; | |
4845 | ||
4846 | return handle_netlink_request(f, &req.nlh, sizeof(req), tipc_show_sock); | |
4847 | } | |
4848 | ||
4849 | struct sock_diag_msg { | |
4850 | __u8 sdiag_family; | |
4851 | }; | |
4852 | ||
4853 | static int generic_show_sock(struct nlmsghdr *nlh, void *arg) | |
4854 | { | |
4855 | struct sock_diag_msg *r = NLMSG_DATA(nlh); | |
4856 | struct inet_diag_arg inet_arg = { .f = arg, .protocol = IPPROTO_MAX }; | |
4857 | int ret; | |
4858 | ||
4859 | switch (r->sdiag_family) { | |
4860 | case AF_INET: | |
4861 | case AF_INET6: | |
4862 | inet_arg.rth = inet_arg.f->rth_for_killing; | |
4863 | ret = show_one_inet_sock(nlh, &inet_arg); | |
4864 | break; | |
4865 | case AF_UNIX: | |
4866 | ret = unix_show_sock(nlh, arg); | |
4867 | break; | |
4868 | case AF_PACKET: | |
4869 | ret = packet_show_sock(nlh, arg); | |
4870 | break; | |
4871 | case AF_NETLINK: | |
4872 | ret = netlink_show_sock(nlh, arg); | |
4873 | break; | |
4874 | case AF_VSOCK: | |
4875 | ret = vsock_show_sock(nlh, arg); | |
4876 | break; | |
4877 | case AF_XDP: | |
4878 | ret = xdp_show_sock(nlh, arg); | |
4879 | break; | |
4880 | default: | |
4881 | ret = -1; | |
4882 | } | |
4883 | ||
4884 | render(); | |
4885 | ||
4886 | return ret; | |
4887 | } | |
4888 | ||
4889 | static int handle_follow_request(struct filter *f) | |
4890 | { | |
4891 | int ret = 0; | |
4892 | int groups = 0; | |
4893 | struct rtnl_handle rth, rth2; | |
4894 | ||
4895 | if (f->families & FAMILY_MASK(AF_INET) && f->dbs & (1 << TCP_DB)) | |
4896 | groups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1); | |
4897 | if (f->families & FAMILY_MASK(AF_INET) && f->dbs & (1 << UDP_DB)) | |
4898 | groups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1); | |
4899 | if (f->families & FAMILY_MASK(AF_INET6) && f->dbs & (1 << TCP_DB)) | |
4900 | groups |= 1 << (SKNLGRP_INET6_TCP_DESTROY - 1); | |
4901 | if (f->families & FAMILY_MASK(AF_INET6) && f->dbs & (1 << UDP_DB)) | |
4902 | groups |= 1 << (SKNLGRP_INET6_UDP_DESTROY - 1); | |
4903 | ||
4904 | if (groups == 0) | |
4905 | return -1; | |
4906 | ||
4907 | if (rtnl_open_byproto(&rth, groups, NETLINK_SOCK_DIAG)) | |
4908 | return -1; | |
4909 | ||
4910 | rth.dump = 0; | |
4911 | rth.local.nl_pid = 0; | |
4912 | ||
4913 | if (f->kill) { | |
4914 | if (rtnl_open_byproto(&rth2, groups, NETLINK_SOCK_DIAG)) { | |
4915 | rtnl_close(&rth); | |
4916 | return -1; | |
4917 | } | |
4918 | f->rth_for_killing = &rth2; | |
4919 | } | |
4920 | ||
4921 | if (rtnl_dump_filter(&rth, generic_show_sock, f)) | |
4922 | ret = -1; | |
4923 | ||
4924 | rtnl_close(&rth); | |
4925 | if (f->rth_for_killing) | |
4926 | rtnl_close(f->rth_for_killing); | |
4927 | return ret; | |
4928 | } | |
4929 | ||
4930 | static int get_snmp_int(char *proto, char *key, int *result) | |
4931 | { | |
4932 | char buf[1024]; | |
4933 | FILE *fp; | |
4934 | int protolen = strlen(proto); | |
4935 | int keylen = strlen(key); | |
4936 | ||
4937 | *result = 0; | |
4938 | ||
4939 | if ((fp = net_snmp_open()) == NULL) | |
4940 | return -1; | |
4941 | ||
4942 | while (fgets(buf, sizeof(buf), fp) != NULL) { | |
4943 | char *p = buf; | |
4944 | int pos = 0; | |
4945 | ||
4946 | if (memcmp(buf, proto, protolen)) | |
4947 | continue; | |
4948 | while ((p = strchr(p, ' ')) != NULL) { | |
4949 | pos++; | |
4950 | p++; | |
4951 | if (memcmp(p, key, keylen) == 0 && | |
4952 | (p[keylen] == ' ' || p[keylen] == '\n')) | |
4953 | break; | |
4954 | } | |
4955 | if (fgets(buf, sizeof(buf), fp) == NULL) | |
4956 | break; | |
4957 | if (memcmp(buf, proto, protolen)) | |
4958 | break; | |
4959 | p = buf; | |
4960 | while ((p = strchr(p, ' ')) != NULL) { | |
4961 | p++; | |
4962 | if (--pos == 0) { | |
4963 | sscanf(p, "%d", result); | |
4964 | fclose(fp); | |
4965 | return 0; | |
4966 | } | |
4967 | } | |
4968 | } | |
4969 | ||
4970 | fclose(fp); | |
4971 | errno = ESRCH; | |
4972 | return -1; | |
4973 | } | |
4974 | ||
4975 | ||
4976 | /* Get stats from sockstat */ | |
4977 | ||
4978 | struct ssummary { | |
4979 | int socks; | |
4980 | int tcp_mem; | |
4981 | int tcp_total; | |
4982 | int tcp_orphans; | |
4983 | int tcp_tws; | |
4984 | int tcp4_hashed; | |
4985 | int udp4; | |
4986 | int raw4; | |
4987 | int frag4; | |
4988 | int frag4_mem; | |
4989 | int tcp6_hashed; | |
4990 | int udp6; | |
4991 | int raw6; | |
4992 | int frag6; | |
4993 | int frag6_mem; | |
4994 | }; | |
4995 | ||
4996 | static void get_sockstat_line(char *line, struct ssummary *s) | |
4997 | { | |
4998 | char id[256], rem[256]; | |
4999 | ||
5000 | if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2) | |
5001 | return; | |
5002 | ||
5003 | if (strcmp(id, "sockets:") == 0) | |
5004 | sscanf(rem, "%*s%d", &s->socks); | |
5005 | else if (strcmp(id, "UDP:") == 0) | |
5006 | sscanf(rem, "%*s%d", &s->udp4); | |
5007 | else if (strcmp(id, "UDP6:") == 0) | |
5008 | sscanf(rem, "%*s%d", &s->udp6); | |
5009 | else if (strcmp(id, "RAW:") == 0) | |
5010 | sscanf(rem, "%*s%d", &s->raw4); | |
5011 | else if (strcmp(id, "RAW6:") == 0) | |
5012 | sscanf(rem, "%*s%d", &s->raw6); | |
5013 | else if (strcmp(id, "TCP6:") == 0) | |
5014 | sscanf(rem, "%*s%d", &s->tcp6_hashed); | |
5015 | else if (strcmp(id, "FRAG:") == 0) | |
5016 | sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem); | |
5017 | else if (strcmp(id, "FRAG6:") == 0) | |
5018 | sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem); | |
5019 | else if (strcmp(id, "TCP:") == 0) | |
5020 | sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d", | |
5021 | &s->tcp4_hashed, | |
5022 | &s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem); | |
5023 | } | |
5024 | ||
5025 | static int get_sockstat(struct ssummary *s) | |
5026 | { | |
5027 | char buf[256]; | |
5028 | FILE *fp; | |
5029 | ||
5030 | memset(s, 0, sizeof(*s)); | |
5031 | ||
5032 | if ((fp = net_sockstat_open()) == NULL) | |
5033 | return -1; | |
5034 | while (fgets(buf, sizeof(buf), fp) != NULL) | |
5035 | get_sockstat_line(buf, s); | |
5036 | fclose(fp); | |
5037 | ||
5038 | if ((fp = net_sockstat6_open()) == NULL) | |
5039 | return 0; | |
5040 | while (fgets(buf, sizeof(buf), fp) != NULL) | |
5041 | get_sockstat_line(buf, s); | |
5042 | fclose(fp); | |
5043 | ||
5044 | return 0; | |
5045 | } | |
5046 | ||
5047 | static int print_summary(void) | |
5048 | { | |
5049 | struct ssummary s; | |
5050 | int tcp_estab; | |
5051 | ||
5052 | if (get_sockstat(&s) < 0) | |
5053 | perror("ss: get_sockstat"); | |
5054 | if (get_snmp_int("Tcp:", "CurrEstab", &tcp_estab) < 0) | |
5055 | perror("ss: get_snmpstat"); | |
5056 | ||
5057 | printf("Total: %d\n", s.socks); | |
5058 | ||
5059 | printf("TCP: %d (estab %d, closed %d, orphaned %d, timewait %d)\n", | |
5060 | s.tcp_total + s.tcp_tws, tcp_estab, | |
5061 | s.tcp_total - (s.tcp4_hashed + s.tcp6_hashed - s.tcp_tws), | |
5062 | s.tcp_orphans, s.tcp_tws); | |
5063 | ||
5064 | printf("\n"); | |
5065 | printf("Transport Total IP IPv6\n"); | |
5066 | printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6); | |
5067 | printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6); | |
5068 | printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed); | |
5069 | printf("INET %-9d %-9d %-9d\n", | |
5070 | s.raw4+s.udp4+s.tcp4_hashed+ | |
5071 | s.raw6+s.udp6+s.tcp6_hashed, | |
5072 | s.raw4+s.udp4+s.tcp4_hashed, | |
5073 | s.raw6+s.udp6+s.tcp6_hashed); | |
5074 | printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6); | |
5075 | ||
5076 | printf("\n"); | |
5077 | ||
5078 | return 0; | |
5079 | } | |
5080 | ||
5081 | static void _usage(FILE *dest) | |
5082 | { | |
5083 | fprintf(dest, | |
5084 | "Usage: ss [ OPTIONS ]\n" | |
5085 | " ss [ OPTIONS ] [ FILTER ]\n" | |
5086 | " -h, --help this message\n" | |
5087 | " -V, --version output version information\n" | |
5088 | " -n, --numeric don't resolve service names\n" | |
5089 | " -r, --resolve resolve host names\n" | |
5090 | " -a, --all display all sockets\n" | |
5091 | " -l, --listening display listening sockets\n" | |
5092 | " -o, --options show timer information\n" | |
5093 | " -e, --extended show detailed socket information\n" | |
5094 | " -m, --memory show socket memory usage\n" | |
5095 | " -p, --processes show process using socket\n" | |
5096 | " -i, --info show internal TCP information\n" | |
5097 | " --tipcinfo show internal tipc socket information\n" | |
5098 | " -s, --summary show socket usage summary\n" | |
5099 | " --tos show tos and priority information\n" | |
5100 | " --cgroup show cgroup information\n" | |
5101 | " -b, --bpf show bpf filter socket information\n" | |
5102 | " -E, --events continually display sockets as they are destroyed\n" | |
5103 | " -Z, --context display process SELinux security contexts\n" | |
5104 | " -z, --contexts display process and socket SELinux security contexts\n" | |
5105 | " -N, --net switch to the specified network namespace name\n" | |
5106 | "\n" | |
5107 | " -4, --ipv4 display only IP version 4 sockets\n" | |
5108 | " -6, --ipv6 display only IP version 6 sockets\n" | |
5109 | " -0, --packet display PACKET sockets\n" | |
5110 | " -t, --tcp display only TCP sockets\n" | |
5111 | " -S, --sctp display only SCTP sockets\n" | |
5112 | " -u, --udp display only UDP sockets\n" | |
5113 | " -d, --dccp display only DCCP sockets\n" | |
5114 | " -w, --raw display only RAW sockets\n" | |
5115 | " -x, --unix display only Unix domain sockets\n" | |
5116 | " --tipc display only TIPC sockets\n" | |
5117 | " --vsock display only vsock sockets\n" | |
5118 | " -f, --family=FAMILY display sockets of type FAMILY\n" | |
5119 | " FAMILY := {inet|inet6|link|unix|netlink|vsock|tipc|xdp|help}\n" | |
5120 | "\n" | |
5121 | " -K, --kill forcibly close sockets, display what was closed\n" | |
5122 | " -H, --no-header Suppress header line\n" | |
5123 | " -O, --oneline socket's data printed on a single line\n" | |
5124 | "\n" | |
5125 | " -A, --query=QUERY, --socket=QUERY\n" | |
5126 | " QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink|vsock_stream|vsock_dgram|tipc}[,QUERY]\n" | |
5127 | "\n" | |
5128 | " -D, --diag=FILE Dump raw information about TCP sockets to FILE\n" | |
5129 | " -F, --filter=FILE read filter information from FILE\n" | |
5130 | " FILTER := [ state STATE-FILTER ] [ EXPRESSION ]\n" | |
5131 | " STATE-FILTER := {all|connected|synchronized|bucket|big|TCP-STATES}\n" | |
5132 | " TCP-STATES := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|closed|close-wait|last-ack|listening|closing}\n" | |
5133 | " connected := {established|syn-sent|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n" | |
5134 | " synchronized := {established|syn-recv|fin-wait-{1,2}|time-wait|close-wait|last-ack|closing}\n" | |
5135 | " bucket := {syn-recv|time-wait}\n" | |
5136 | " big := {established|syn-sent|fin-wait-{1,2}|closed|close-wait|last-ack|listening|closing}\n" | |
5137 | ); | |
5138 | } | |
5139 | ||
5140 | static void help(void) __attribute__((noreturn)); | |
5141 | static void help(void) | |
5142 | { | |
5143 | _usage(stdout); | |
5144 | exit(0); | |
5145 | } | |
5146 | ||
5147 | static void usage(void) __attribute__((noreturn)); | |
5148 | static void usage(void) | |
5149 | { | |
5150 | _usage(stderr); | |
5151 | exit(-1); | |
5152 | } | |
5153 | ||
5154 | ||
5155 | static int scan_state(const char *state) | |
5156 | { | |
5157 | static const char * const sstate_namel[] = { | |
5158 | "UNKNOWN", | |
5159 | [SS_ESTABLISHED] = "established", | |
5160 | [SS_SYN_SENT] = "syn-sent", | |
5161 | [SS_SYN_RECV] = "syn-recv", | |
5162 | [SS_FIN_WAIT1] = "fin-wait-1", | |
5163 | [SS_FIN_WAIT2] = "fin-wait-2", | |
5164 | [SS_TIME_WAIT] = "time-wait", | |
5165 | [SS_CLOSE] = "unconnected", | |
5166 | [SS_CLOSE_WAIT] = "close-wait", | |
5167 | [SS_LAST_ACK] = "last-ack", | |
5168 | [SS_LISTEN] = "listening", | |
5169 | [SS_CLOSING] = "closing", | |
5170 | }; | |
5171 | int i; | |
5172 | ||
5173 | if (strcasecmp(state, "close") == 0 || | |
5174 | strcasecmp(state, "closed") == 0) | |
5175 | return (1<<SS_CLOSE); | |
5176 | if (strcasecmp(state, "syn-rcv") == 0) | |
5177 | return (1<<SS_SYN_RECV); | |
5178 | if (strcasecmp(state, "established") == 0) | |
5179 | return (1<<SS_ESTABLISHED); | |
5180 | if (strcasecmp(state, "all") == 0) | |
5181 | return SS_ALL; | |
5182 | if (strcasecmp(state, "connected") == 0) | |
5183 | return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)); | |
5184 | if (strcasecmp(state, "synchronized") == 0) | |
5185 | return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT)); | |
5186 | if (strcasecmp(state, "bucket") == 0) | |
5187 | return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT); | |
5188 | if (strcasecmp(state, "big") == 0) | |
5189 | return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT)); | |
5190 | for (i = 0; i < SS_MAX; i++) { | |
5191 | if (strcasecmp(state, sstate_namel[i]) == 0) | |
5192 | return (1<<i); | |
5193 | } | |
5194 | ||
5195 | fprintf(stderr, "ss: wrong state name: %s\n", state); | |
5196 | exit(-1); | |
5197 | } | |
5198 | ||
5199 | /* Values 'v' and 'V' are already used so a non-character is used */ | |
5200 | #define OPT_VSOCK 256 | |
5201 | ||
5202 | /* Values of 't' are already used so a non-character is used */ | |
5203 | #define OPT_TIPCSOCK 257 | |
5204 | #define OPT_TIPCINFO 258 | |
5205 | ||
5206 | #define OPT_TOS 259 | |
5207 | ||
5208 | /* Values of 'x' are already used so a non-character is used */ | |
5209 | #define OPT_XDPSOCK 260 | |
5210 | ||
5211 | #define OPT_CGROUP 261 | |
5212 | ||
5213 | static const struct option long_opts[] = { | |
5214 | { "numeric", 0, 0, 'n' }, | |
5215 | { "resolve", 0, 0, 'r' }, | |
5216 | { "options", 0, 0, 'o' }, | |
5217 | { "extended", 0, 0, 'e' }, | |
5218 | { "memory", 0, 0, 'm' }, | |
5219 | { "info", 0, 0, 'i' }, | |
5220 | { "processes", 0, 0, 'p' }, | |
5221 | { "bpf", 0, 0, 'b' }, | |
5222 | { "events", 0, 0, 'E' }, | |
5223 | { "dccp", 0, 0, 'd' }, | |
5224 | { "tcp", 0, 0, 't' }, | |
5225 | { "sctp", 0, 0, 'S' }, | |
5226 | { "udp", 0, 0, 'u' }, | |
5227 | { "raw", 0, 0, 'w' }, | |
5228 | { "unix", 0, 0, 'x' }, | |
5229 | { "tipc", 0, 0, OPT_TIPCSOCK}, | |
5230 | { "vsock", 0, 0, OPT_VSOCK }, | |
5231 | { "all", 0, 0, 'a' }, | |
5232 | { "listening", 0, 0, 'l' }, | |
5233 | { "ipv4", 0, 0, '4' }, | |
5234 | { "ipv6", 0, 0, '6' }, | |
5235 | { "packet", 0, 0, '0' }, | |
5236 | { "family", 1, 0, 'f' }, | |
5237 | { "socket", 1, 0, 'A' }, | |
5238 | { "query", 1, 0, 'A' }, | |
5239 | { "summary", 0, 0, 's' }, | |
5240 | { "diag", 1, 0, 'D' }, | |
5241 | { "filter", 1, 0, 'F' }, | |
5242 | { "version", 0, 0, 'V' }, | |
5243 | { "help", 0, 0, 'h' }, | |
5244 | { "context", 0, 0, 'Z' }, | |
5245 | { "contexts", 0, 0, 'z' }, | |
5246 | { "net", 1, 0, 'N' }, | |
5247 | { "tipcinfo", 0, 0, OPT_TIPCINFO}, | |
5248 | { "tos", 0, 0, OPT_TOS }, | |
5249 | { "cgroup", 0, 0, OPT_CGROUP }, | |
5250 | { "kill", 0, 0, 'K' }, | |
5251 | { "no-header", 0, 0, 'H' }, | |
5252 | { "xdp", 0, 0, OPT_XDPSOCK}, | |
5253 | { "oneline", 0, 0, 'O' }, | |
5254 | { 0 } | |
5255 | ||
5256 | }; | |
5257 | ||
5258 | int main(int argc, char *argv[]) | |
5259 | { | |
5260 | int saw_states = 0; | |
5261 | int saw_query = 0; | |
5262 | int do_summary = 0; | |
5263 | const char *dump_tcpdiag = NULL; | |
5264 | FILE *filter_fp = NULL; | |
5265 | int ch; | |
5266 | int state_filter = 0; | |
5267 | ||
5268 | while ((ch = getopt_long(argc, argv, | |
5269 | "dhaletuwxnro460spbEf:miA:D:F:vVzZN:KHSO", | |
5270 | long_opts, NULL)) != EOF) { | |
5271 | switch (ch) { | |
5272 | case 'n': | |
5273 | numeric = 1; | |
5274 | break; | |
5275 | case 'r': | |
5276 | resolve_hosts = 1; | |
5277 | break; | |
5278 | case 'o': | |
5279 | show_options = 1; | |
5280 | break; | |
5281 | case 'e': | |
5282 | show_options = 1; | |
5283 | show_details++; | |
5284 | break; | |
5285 | case 'm': | |
5286 | show_mem = 1; | |
5287 | break; | |
5288 | case 'i': | |
5289 | show_tcpinfo = 1; | |
5290 | break; | |
5291 | case 'p': | |
5292 | show_users++; | |
5293 | user_ent_hash_build(); | |
5294 | break; | |
5295 | case 'b': | |
5296 | show_options = 1; | |
5297 | show_bpf++; | |
5298 | break; | |
5299 | case 'E': | |
5300 | follow_events = 1; | |
5301 | break; | |
5302 | case 'd': | |
5303 | filter_db_set(¤t_filter, DCCP_DB, true); | |
5304 | break; | |
5305 | case 't': | |
5306 | filter_db_set(¤t_filter, TCP_DB, true); | |
5307 | break; | |
5308 | case 'S': | |
5309 | filter_db_set(¤t_filter, SCTP_DB, true); | |
5310 | break; | |
5311 | case 'u': | |
5312 | filter_db_set(¤t_filter, UDP_DB, true); | |
5313 | break; | |
5314 | case 'w': | |
5315 | filter_db_set(¤t_filter, RAW_DB, true); | |
5316 | break; | |
5317 | case 'x': | |
5318 | filter_af_set(¤t_filter, AF_UNIX); | |
5319 | break; | |
5320 | case OPT_VSOCK: | |
5321 | filter_af_set(¤t_filter, AF_VSOCK); | |
5322 | break; | |
5323 | case OPT_TIPCSOCK: | |
5324 | filter_af_set(¤t_filter, AF_TIPC); | |
5325 | break; | |
5326 | case 'a': | |
5327 | state_filter = SS_ALL; | |
5328 | break; | |
5329 | case 'l': | |
5330 | state_filter = (1 << SS_LISTEN) | (1 << SS_CLOSE); | |
5331 | break; | |
5332 | case '4': | |
5333 | filter_af_set(¤t_filter, AF_INET); | |
5334 | break; | |
5335 | case '6': | |
5336 | filter_af_set(¤t_filter, AF_INET6); | |
5337 | break; | |
5338 | case '0': | |
5339 | filter_af_set(¤t_filter, AF_PACKET); | |
5340 | break; | |
5341 | case OPT_XDPSOCK: | |
5342 | filter_af_set(¤t_filter, AF_XDP); | |
5343 | break; | |
5344 | case 'f': | |
5345 | if (strcmp(optarg, "inet") == 0) | |
5346 | filter_af_set(¤t_filter, AF_INET); | |
5347 | else if (strcmp(optarg, "inet6") == 0) | |
5348 | filter_af_set(¤t_filter, AF_INET6); | |
5349 | else if (strcmp(optarg, "link") == 0) | |
5350 | filter_af_set(¤t_filter, AF_PACKET); | |
5351 | else if (strcmp(optarg, "unix") == 0) | |
5352 | filter_af_set(¤t_filter, AF_UNIX); | |
5353 | else if (strcmp(optarg, "netlink") == 0) | |
5354 | filter_af_set(¤t_filter, AF_NETLINK); | |
5355 | else if (strcmp(optarg, "tipc") == 0) | |
5356 | filter_af_set(¤t_filter, AF_TIPC); | |
5357 | else if (strcmp(optarg, "vsock") == 0) | |
5358 | filter_af_set(¤t_filter, AF_VSOCK); | |
5359 | else if (strcmp(optarg, "xdp") == 0) | |
5360 | filter_af_set(¤t_filter, AF_XDP); | |
5361 | else if (strcmp(optarg, "help") == 0) | |
5362 | help(); | |
5363 | else { | |
5364 | fprintf(stderr, "ss: \"%s\" is invalid family\n", | |
5365 | optarg); | |
5366 | usage(); | |
5367 | } | |
5368 | break; | |
5369 | case 'A': | |
5370 | { | |
5371 | char *p, *p1; | |
5372 | ||
5373 | if (!saw_query) { | |
5374 | current_filter.dbs = 0; | |
5375 | state_filter = state_filter ? | |
5376 | state_filter : SS_CONN; | |
5377 | saw_query = 1; | |
5378 | do_default = 0; | |
5379 | } | |
5380 | p = p1 = optarg; | |
5381 | do { | |
5382 | if ((p1 = strchr(p, ',')) != NULL) | |
5383 | *p1 = 0; | |
5384 | if (filter_db_parse(¤t_filter, p)) { | |
5385 | fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p); | |
5386 | usage(); | |
5387 | } | |
5388 | p = p1 + 1; | |
5389 | } while (p1); | |
5390 | break; | |
5391 | } | |
5392 | case 's': | |
5393 | do_summary = 1; | |
5394 | break; | |
5395 | case 'D': | |
5396 | dump_tcpdiag = optarg; | |
5397 | break; | |
5398 | case 'F': | |
5399 | if (filter_fp) { | |
5400 | fprintf(stderr, "More than one filter file\n"); | |
5401 | exit(-1); | |
5402 | } | |
5403 | if (optarg[0] == '-') | |
5404 | filter_fp = stdin; | |
5405 | else | |
5406 | filter_fp = fopen(optarg, "r"); | |
5407 | if (!filter_fp) { | |
5408 | perror("fopen filter file"); | |
5409 | exit(-1); | |
5410 | } | |
5411 | break; | |
5412 | case 'v': | |
5413 | case 'V': | |
5414 | printf("ss utility, iproute2-ss%s\n", SNAPSHOT); | |
5415 | exit(0); | |
5416 | case 'z': | |
5417 | show_sock_ctx++; | |
5418 | /* fall through */ | |
5419 | case 'Z': | |
5420 | if (is_selinux_enabled() <= 0) { | |
5421 | fprintf(stderr, "ss: SELinux is not enabled.\n"); | |
5422 | exit(1); | |
5423 | } | |
5424 | show_proc_ctx++; | |
5425 | user_ent_hash_build(); | |
5426 | break; | |
5427 | case 'N': | |
5428 | if (netns_switch(optarg)) | |
5429 | exit(1); | |
5430 | break; | |
5431 | case OPT_TIPCINFO: | |
5432 | show_tipcinfo = 1; | |
5433 | break; | |
5434 | case OPT_TOS: | |
5435 | show_tos = 1; | |
5436 | break; | |
5437 | case OPT_CGROUP: | |
5438 | show_cgroup = 1; | |
5439 | break; | |
5440 | case 'K': | |
5441 | current_filter.kill = 1; | |
5442 | break; | |
5443 | case 'H': | |
5444 | show_header = 0; | |
5445 | break; | |
5446 | case 'O': | |
5447 | oneline = 1; | |
5448 | break; | |
5449 | case 'h': | |
5450 | help(); | |
5451 | case '?': | |
5452 | default: | |
5453 | usage(); | |
5454 | } | |
5455 | } | |
5456 | ||
5457 | argc -= optind; | |
5458 | argv += optind; | |
5459 | ||
5460 | if (do_summary) { | |
5461 | print_summary(); | |
5462 | if (do_default && argc == 0) | |
5463 | exit(0); | |
5464 | } | |
5465 | ||
5466 | while (argc > 0) { | |
5467 | if (strcmp(*argv, "state") == 0) { | |
5468 | NEXT_ARG(); | |
5469 | if (!saw_states) | |
5470 | state_filter = 0; | |
5471 | state_filter |= scan_state(*argv); | |
5472 | saw_states = 1; | |
5473 | } else if (strcmp(*argv, "exclude") == 0 || | |
5474 | strcmp(*argv, "excl") == 0) { | |
5475 | NEXT_ARG(); | |
5476 | if (!saw_states) | |
5477 | state_filter = SS_ALL; | |
5478 | state_filter &= ~scan_state(*argv); | |
5479 | saw_states = 1; | |
5480 | } else { | |
5481 | break; | |
5482 | } | |
5483 | argc--; argv++; | |
5484 | } | |
5485 | ||
5486 | if (do_default) { | |
5487 | state_filter = state_filter ? state_filter : SS_CONN; | |
5488 | filter_db_parse(¤t_filter, "all"); | |
5489 | } | |
5490 | ||
5491 | filter_states_set(¤t_filter, state_filter); | |
5492 | filter_merge_defaults(¤t_filter); | |
5493 | ||
5494 | if (!numeric && resolve_hosts && | |
5495 | (current_filter.dbs & (UNIX_DBM|INET_L4_DBM))) | |
5496 | init_service_resolver(); | |
5497 | ||
5498 | if (current_filter.dbs == 0) { | |
5499 | fprintf(stderr, "ss: no socket tables to show with such filter.\n"); | |
5500 | exit(0); | |
5501 | } | |
5502 | if (current_filter.families == 0) { | |
5503 | fprintf(stderr, "ss: no families to show with such filter.\n"); | |
5504 | exit(0); | |
5505 | } | |
5506 | if (current_filter.states == 0) { | |
5507 | fprintf(stderr, "ss: no socket states to show with such filter.\n"); | |
5508 | exit(0); | |
5509 | } | |
5510 | ||
5511 | if (dump_tcpdiag) { | |
5512 | FILE *dump_fp = stdout; | |
5513 | ||
5514 | if (!(current_filter.dbs & (1<<TCP_DB))) { | |
5515 | fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n"); | |
5516 | exit(0); | |
5517 | } | |
5518 | if (dump_tcpdiag[0] != '-') { | |
5519 | dump_fp = fopen(dump_tcpdiag, "w"); | |
5520 | if (!dump_tcpdiag) { | |
5521 | perror("fopen dump file"); | |
5522 | exit(-1); | |
5523 | } | |
5524 | } | |
5525 | inet_show_netlink(¤t_filter, dump_fp, IPPROTO_TCP); | |
5526 | fflush(dump_fp); | |
5527 | exit(0); | |
5528 | } | |
5529 | ||
5530 | if (ssfilter_parse(¤t_filter.f, argc, argv, filter_fp)) | |
5531 | usage(); | |
5532 | ||
5533 | if (!(current_filter.dbs & (current_filter.dbs - 1))) | |
5534 | columns[COL_NETID].disabled = 1; | |
5535 | ||
5536 | if (!(current_filter.states & (current_filter.states - 1))) | |
5537 | columns[COL_STATE].disabled = 1; | |
5538 | ||
5539 | if (show_header) | |
5540 | print_header(); | |
5541 | ||
5542 | fflush(stdout); | |
5543 | ||
5544 | if (follow_events) | |
5545 | exit(handle_follow_request(¤t_filter)); | |
5546 | ||
5547 | if (current_filter.dbs & (1<<NETLINK_DB)) | |
5548 | netlink_show(¤t_filter); | |
5549 | if (current_filter.dbs & PACKET_DBM) | |
5550 | packet_show(¤t_filter); | |
5551 | if (current_filter.dbs & UNIX_DBM) | |
5552 | unix_show(¤t_filter); | |
5553 | if (current_filter.dbs & (1<<RAW_DB)) | |
5554 | raw_show(¤t_filter); | |
5555 | if (current_filter.dbs & (1<<UDP_DB)) | |
5556 | udp_show(¤t_filter); | |
5557 | if (current_filter.dbs & (1<<TCP_DB)) | |
5558 | tcp_show(¤t_filter); | |
5559 | if (current_filter.dbs & (1<<DCCP_DB)) | |
5560 | dccp_show(¤t_filter); | |
5561 | if (current_filter.dbs & (1<<SCTP_DB)) | |
5562 | sctp_show(¤t_filter); | |
5563 | if (current_filter.dbs & VSOCK_DBM) | |
5564 | vsock_show(¤t_filter); | |
5565 | if (current_filter.dbs & (1<<TIPC_DB)) | |
5566 | tipc_show(¤t_filter); | |
5567 | if (current_filter.dbs & (1<<XDP_DB)) | |
5568 | xdp_show(¤t_filter); | |
5569 | ||
5570 | if (show_users || show_proc_ctx || show_sock_ctx) | |
5571 | user_ent_destroy(); | |
5572 | ||
5573 | render(); | |
5574 | ||
5575 | return 0; | |
5576 | } |