]>
Commit | Line | Data |
---|---|---|
0ee16e43 MY |
1 | /* |
2 | * lsfd-sock-xinfo.c - read various information from files under /proc/net/ | |
3 | * | |
4 | * Copyright (C) 2022 Red Hat, Inc. All rights reserved. | |
5 | * Written by Masatake YAMATO <yamato@redhat.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it would be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software Foundation, | |
19 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
7b2a9be0 | 21 | #include <arpa/inet.h> /* inet_ntop */ |
1656da13 | 22 | #include <netinet/in.h> /* in6_addr */ |
2e38e61c | 23 | #include <fcntl.h> /* open(2) */ |
97f54385 | 24 | #include <ifaddrs.h> /* getifaddrs */ |
73df46fc | 25 | #include <inttypes.h> /* SCNu16 */ |
97f54385 | 26 | #include <net/if.h> /* if_nametoindex */ |
adfc156a | 27 | #include <linux/if_ether.h> /* ETH_P_* */ |
2e38e61c | 28 | #include <linux/net.h> /* SS_* */ |
b53cc896 | 29 | #include <linux/netlink.h> /* NETLINK_* */ |
2e38e61c | 30 | #include <linux/un.h> /* UNIX_PATH_MAX */ |
0ee16e43 MY |
31 | #include <sched.h> /* for setns(2) */ |
32 | #include <search.h> | |
2e38e61c MY |
33 | #include <stdint.h> |
34 | #include <string.h> | |
35 | #include <sys/socket.h> /* SOCK_* */ | |
0ee16e43 | 36 | |
db79a100 TW |
37 | #include "sysfs.h" |
38 | #include "bitops.h" | |
0ee16e43 MY |
39 | |
40 | #include "lsfd.h" | |
41 | #include "lsfd-sock.h" | |
42 | ||
a7cba6f3 | 43 | static void load_xinfo_from_proc_icmp(ino_t netns_inode); |
0b1dfd03 | 44 | static void load_xinfo_from_proc_icmp6(ino_t netns_inode); |
2e38e61c | 45 | static void load_xinfo_from_proc_unix(ino_t netns_inode); |
0188afb3 | 46 | static void load_xinfo_from_proc_raw(ino_t netns_inode); |
7b2a9be0 | 47 | static void load_xinfo_from_proc_tcp(ino_t netns_inode); |
92a0dbce | 48 | static void load_xinfo_from_proc_udp(ino_t netns_inode); |
c779f412 | 49 | static void load_xinfo_from_proc_udplite(ino_t netns_inode); |
1656da13 | 50 | static void load_xinfo_from_proc_tcp6(ino_t netns_inode); |
28cf2b21 | 51 | static void load_xinfo_from_proc_udp6(ino_t netns_inode); |
93bca151 | 52 | static void load_xinfo_from_proc_udplite6(ino_t netns_inode); |
2dd373c3 | 53 | static void load_xinfo_from_proc_raw6(ino_t netns_inode); |
b53cc896 | 54 | static void load_xinfo_from_proc_netlink(ino_t netns_inode); |
adfc156a | 55 | static void load_xinfo_from_proc_packet(ino_t netns_inode); |
2e38e61c | 56 | |
0ee16e43 | 57 | static int self_netns_fd = -1; |
44f9aec7 | 58 | static struct stat self_netns_sb; |
0ee16e43 MY |
59 | |
60 | static void *xinfo_tree; /* for tsearch/tfind */ | |
61 | static void *netns_tree; | |
62 | ||
97f54385 MY |
63 | struct iface { |
64 | unsigned int index; | |
65 | char name[IF_NAMESIZE]; | |
66 | }; | |
67 | ||
68 | static const char *get_iface_name(ino_t netns, unsigned int iface_index); | |
69 | ||
e6e551e8 MY |
70 | struct netns { |
71 | ino_t inode; | |
97f54385 | 72 | struct iface *ifaces; |
e6e551e8 MY |
73 | }; |
74 | ||
0ee16e43 MY |
75 | static int netns_compare(const void *a, const void *b) |
76 | { | |
e6e551e8 MY |
77 | const struct netns *netns_a = a; |
78 | const struct netns *netns_b = b; | |
79 | ||
80 | return netns_a->inode - netns_b->inode; | |
81 | } | |
82 | ||
83 | static void netns_free(void *netns) | |
84 | { | |
97f54385 MY |
85 | struct netns *nsobj = netns; |
86 | ||
87 | free(nsobj->ifaces); | |
e6e551e8 | 88 | free(netns); |
0ee16e43 MY |
89 | } |
90 | ||
97f54385 MY |
91 | /* |
92 | * iface index -> iface name mappings | |
93 | */ | |
94 | static void load_ifaces_from_getifaddrs(struct netns *nsobj) | |
95 | { | |
96 | struct ifaddrs *ifa_list; | |
97 | struct ifaddrs *ifa; | |
98 | size_t i, count = 0; | |
99 | ||
100 | if (getifaddrs(&ifa_list) < 0) | |
101 | return; | |
102 | ||
103 | for (ifa = ifa_list; ifa != NULL; ifa = ifa->ifa_next) | |
104 | count++; | |
105 | ||
106 | nsobj->ifaces = xcalloc(count + 1, sizeof(*nsobj->ifaces)); | |
107 | ||
108 | for (ifa = ifa_list, i = 0; ifa != NULL; ifa = ifa->ifa_next, i++) { | |
109 | unsigned int if_index = if_nametoindex(ifa->ifa_name); | |
110 | ||
111 | nsobj->ifaces[i].index = if_index; | |
112 | strncpy(nsobj->ifaces[i].name, ifa->ifa_name, IF_NAMESIZE - 1); | |
113 | /* The slot for the last byte is already filled by calloc. */ | |
114 | } | |
115 | /* nsobj->ifaces[count] is the sentinel value. */ | |
116 | ||
117 | freeifaddrs(ifa_list); | |
118 | ||
119 | return; | |
120 | } | |
121 | ||
122 | static const char *get_iface_name(ino_t netns, unsigned int iface_index) | |
123 | { | |
124 | struct netns **nsobj = tfind(&netns, &netns_tree, netns_compare); | |
125 | if (!nsobj) | |
126 | return NULL; | |
127 | ||
128 | for (size_t i = 0; (*nsobj)->ifaces[i].index; i++) { | |
129 | if ((*nsobj)->ifaces[i].index == iface_index) | |
130 | return (*nsobj)->ifaces[i].name; | |
131 | } | |
132 | ||
133 | return NULL; | |
134 | } | |
135 | ||
0ee16e43 MY |
136 | static bool is_sock_xinfo_loaded(ino_t netns) |
137 | { | |
138 | return tfind(&netns, &netns_tree, netns_compare)? true: false; | |
139 | } | |
140 | ||
e6e551e8 | 141 | static struct netns *mark_sock_xinfo_loaded(ino_t ino) |
0ee16e43 | 142 | { |
97f54385 | 143 | struct netns *netns = xcalloc(1, sizeof(*netns)); |
0ee16e43 MY |
144 | ino_t **tmp; |
145 | ||
e6e551e8 | 146 | netns->inode = ino; |
0ee16e43 MY |
147 | tmp = tsearch(netns, &netns_tree, netns_compare); |
148 | if (tmp == NULL) | |
149 | errx(EXIT_FAILURE, _("failed to allocate memory")); | |
e6e551e8 | 150 | return *(struct netns **)tmp; |
0ee16e43 MY |
151 | } |
152 | ||
e6e551e8 | 153 | static void load_sock_xinfo_no_nsswitch(struct netns *nsobj) |
0ee16e43 | 154 | { |
e6e551e8 MY |
155 | ino_t netns = nsobj? nsobj->inode: 0; |
156 | ||
2e38e61c | 157 | load_xinfo_from_proc_unix(netns); |
7b2a9be0 | 158 | load_xinfo_from_proc_tcp(netns); |
92a0dbce | 159 | load_xinfo_from_proc_udp(netns); |
c779f412 | 160 | load_xinfo_from_proc_udplite(netns); |
0188afb3 | 161 | load_xinfo_from_proc_raw(netns); |
1656da13 | 162 | load_xinfo_from_proc_tcp6(netns); |
28cf2b21 | 163 | load_xinfo_from_proc_udp6(netns); |
93bca151 | 164 | load_xinfo_from_proc_udplite6(netns); |
2dd373c3 | 165 | load_xinfo_from_proc_raw6(netns); |
a7cba6f3 | 166 | load_xinfo_from_proc_icmp(netns); |
0b1dfd03 | 167 | load_xinfo_from_proc_icmp6(netns); |
b53cc896 | 168 | load_xinfo_from_proc_netlink(netns); |
adfc156a | 169 | load_xinfo_from_proc_packet(netns); |
97f54385 MY |
170 | |
171 | if (nsobj) | |
172 | load_ifaces_from_getifaddrs(nsobj); | |
0ee16e43 MY |
173 | } |
174 | ||
e6e551e8 | 175 | static void load_sock_xinfo_with_fd(int fd, struct netns *nsobj) |
0ee16e43 | 176 | { |
b3649945 | 177 | if (setns(fd, CLONE_NEWNET) == 0) { |
e6e551e8 | 178 | load_sock_xinfo_no_nsswitch(nsobj); |
b3649945 | 179 | setns(self_netns_fd, CLONE_NEWNET); |
0ee16e43 MY |
180 | } |
181 | } | |
182 | ||
183 | void load_sock_xinfo(struct path_cxt *pc, const char *name, ino_t netns) | |
184 | { | |
185 | if (self_netns_fd == -1) | |
186 | return; | |
187 | ||
188 | if (!is_sock_xinfo_loaded(netns)) { | |
189 | int fd; | |
e6e551e8 | 190 | struct netns *nsobj = mark_sock_xinfo_loaded(netns); |
0ee16e43 MY |
191 | fd = ul_path_open(pc, O_RDONLY, name); |
192 | if (fd < 0) | |
193 | return; | |
194 | ||
e6e551e8 | 195 | load_sock_xinfo_with_fd(fd, nsobj); |
0ee16e43 MY |
196 | close(fd); |
197 | } | |
198 | } | |
199 | ||
200 | void initialize_sock_xinfos(void) | |
201 | { | |
202 | struct path_cxt *pc; | |
203 | DIR *dir; | |
204 | struct dirent *d; | |
205 | ||
206 | self_netns_fd = open("/proc/self/ns/net", O_RDONLY); | |
207 | ||
208 | if (self_netns_fd < 0) | |
e6e551e8 | 209 | load_sock_xinfo_no_nsswitch(NULL); |
0ee16e43 MY |
210 | else { |
211 | if (fstat(self_netns_fd, &self_netns_sb) == 0) { | |
916b44a5 | 212 | unsigned long m; |
e6e551e8 MY |
213 | struct netns *nsobj = mark_sock_xinfo_loaded(self_netns_sb.st_ino); |
214 | load_sock_xinfo_no_nsswitch(nsobj); | |
916b44a5 MY |
215 | |
216 | m = minor(self_netns_sb.st_dev); | |
217 | add_nodev(m, "nsfs"); | |
0ee16e43 MY |
218 | } |
219 | } | |
220 | ||
221 | /* Load /proc/net/{unix,...} of the network namespace | |
222 | * specified with netns files under /var/run/netns/. | |
223 | * | |
224 | * `ip netns' command pins a network namespace on | |
225 | * /var/run/netns. | |
226 | */ | |
227 | pc = ul_new_path("/var/run/netns"); | |
228 | if (!pc) | |
229 | err(EXIT_FAILURE, _("failed to alloc path context for /var/run/netns")); | |
230 | dir = ul_path_opendir(pc, NULL); | |
231 | if (dir == NULL) { | |
232 | ul_unref_path(pc); | |
233 | return; | |
234 | } | |
235 | while ((d = readdir(dir))) { | |
236 | struct stat sb; | |
237 | int fd; | |
e6e551e8 | 238 | struct netns *nsobj; |
0ee16e43 MY |
239 | if (ul_path_stat(pc, &sb, 0, d->d_name) < 0) |
240 | continue; | |
241 | if (is_sock_xinfo_loaded(sb.st_ino)) | |
242 | continue; | |
e6e551e8 | 243 | nsobj = mark_sock_xinfo_loaded(sb.st_ino); |
0ee16e43 MY |
244 | fd = ul_path_open(pc, O_RDONLY, d->d_name); |
245 | if (fd < 0) | |
246 | continue; | |
e6e551e8 | 247 | load_sock_xinfo_with_fd(fd, nsobj); |
0ee16e43 MY |
248 | close(fd); |
249 | } | |
250 | closedir(dir); | |
251 | ul_unref_path(pc); | |
252 | } | |
253 | ||
b3649945 | 254 | static void free_sock_xinfo(void *node) |
0ee16e43 MY |
255 | { |
256 | struct sock_xinfo *xinfo = node; | |
257 | if (xinfo->class->free) | |
b3649945 | 258 | xinfo->class->free(xinfo); |
0ee16e43 MY |
259 | free(node); |
260 | } | |
261 | ||
262 | void finalize_sock_xinfos(void) | |
263 | { | |
264 | if (self_netns_fd != -1) | |
265 | close(self_netns_fd); | |
e6e551e8 | 266 | tdestroy(netns_tree, netns_free); |
0ee16e43 MY |
267 | tdestroy(xinfo_tree, free_sock_xinfo); |
268 | } | |
269 | ||
270 | static int xinfo_compare(const void *a, const void *b) | |
271 | { | |
0caccbf1 | 272 | return ((struct sock_xinfo *)a)->inode - ((struct sock_xinfo *)b)->inode; |
0ee16e43 MY |
273 | } |
274 | ||
2e38e61c MY |
275 | static void add_sock_info(struct sock_xinfo *xinfo) |
276 | { | |
277 | struct sock_xinfo **tmp = tsearch(xinfo, &xinfo_tree, xinfo_compare); | |
278 | ||
279 | if (tmp == NULL) | |
280 | errx(EXIT_FAILURE, _("failed to allocate memory")); | |
281 | } | |
282 | ||
b8bcca67 | 283 | struct sock_xinfo *get_sock_xinfo(ino_t inode) |
0ee16e43 | 284 | { |
b8bcca67 | 285 | struct sock_xinfo **xinfo = tfind(&inode, &xinfo_tree, xinfo_compare); |
0ee16e43 MY |
286 | |
287 | if (xinfo) | |
288 | return *xinfo; | |
289 | return NULL; | |
290 | } | |
291 | ||
292 | bool is_nsfs_dev(dev_t dev) | |
293 | { | |
621cf7e9 | 294 | return dev == self_netns_sb.st_dev; |
0ee16e43 | 295 | } |
2e38e61c MY |
296 | |
297 | static const char *sock_decode_type(uint16_t type) | |
298 | { | |
299 | switch (type) { | |
300 | case SOCK_STREAM: | |
301 | return "stream"; | |
302 | case SOCK_DGRAM: | |
303 | return "dgram"; | |
304 | case SOCK_RAW: | |
305 | return "raw"; | |
306 | case SOCK_RDM: | |
307 | return "rdm"; | |
308 | case SOCK_SEQPACKET: | |
309 | return "seqpacket"; | |
310 | case SOCK_DCCP: | |
311 | return "dccp"; | |
312 | case SOCK_PACKET: | |
313 | return "packet"; | |
314 | default: | |
315 | return "unknown"; | |
316 | } | |
317 | } | |
318 | ||
319 | /* | |
320 | * Protocol specific code | |
321 | */ | |
322 | ||
323 | /* | |
324 | * UNIX | |
325 | */ | |
326 | struct unix_xinfo { | |
327 | struct sock_xinfo sock; | |
328 | int acceptcon; /* flags */ | |
329 | uint16_t type; | |
330 | uint8_t st; | |
331 | char path[ | |
332 | UNIX_PATH_MAX | |
333 | + 1 /* for @ */ | |
334 | + 1 /* \0? */ | |
335 | ]; | |
336 | }; | |
337 | ||
338 | static const char *unix_decode_state(uint8_t st) | |
339 | { | |
340 | switch (st) { | |
341 | case SS_FREE: | |
342 | return "free"; | |
343 | case SS_UNCONNECTED: | |
344 | return "unconnected"; | |
345 | case SS_CONNECTING: | |
346 | return "connecting"; | |
347 | case SS_CONNECTED: | |
348 | return "connected"; | |
349 | case SS_DISCONNECTING: | |
350 | return "disconnecting"; | |
351 | default: | |
352 | return "unknown"; | |
353 | } | |
354 | } | |
355 | ||
356 | static char *unix_get_name(struct sock_xinfo *sock_xinfo, | |
357 | struct sock *sock) | |
358 | { | |
359 | struct unix_xinfo *ux = (struct unix_xinfo *)sock_xinfo; | |
360 | const char *state = unix_decode_state(ux->st); | |
361 | char *str = NULL; | |
362 | ||
363 | if (sock->protoname && (strcmp(sock->protoname, "UNIX-STREAM") == 0)) | |
364 | xasprintf(&str, "state=%s%s%s", | |
365 | (ux->acceptcon)? "listen": state, | |
366 | *(ux->path)? " path=": "", | |
367 | *(ux->path)? ux->path: ""); | |
368 | else | |
369 | xasprintf(&str, "state=%s%s%s type=%s", | |
370 | (ux->acceptcon)? "listen": state, | |
371 | *(ux->path)? " path=": "", | |
372 | *(ux->path)? ux->path: "", | |
373 | sock_decode_type(ux->type)); | |
374 | return str; | |
375 | } | |
376 | ||
377 | static char *unix_get_type(struct sock_xinfo *sock_xinfo, | |
378 | struct sock *sock __attribute__((__unused__))) | |
379 | { | |
380 | const char *str; | |
381 | struct unix_xinfo *ux = (struct unix_xinfo *)sock_xinfo; | |
382 | ||
383 | str = sock_decode_type(ux->type); | |
e0dc84da | 384 | return xstrdup(str); |
2e38e61c MY |
385 | } |
386 | ||
387 | static char *unix_get_state(struct sock_xinfo *sock_xinfo, | |
388 | struct sock *sock __attribute__((__unused__))) | |
389 | { | |
390 | const char *str; | |
391 | struct unix_xinfo *ux = (struct unix_xinfo *)sock_xinfo; | |
392 | ||
393 | if (ux->acceptcon) | |
e0dc84da | 394 | return xstrdup("listen"); |
2e38e61c MY |
395 | |
396 | str = unix_decode_state(ux->st); | |
e0dc84da | 397 | return xstrdup(str); |
2e38e61c MY |
398 | } |
399 | ||
45d61bff MY |
400 | static bool unix_get_listening(struct sock_xinfo *sock_xinfo, |
401 | struct sock *sock __attribute__((__unused__))) | |
402 | { | |
403 | struct unix_xinfo *ux = (struct unix_xinfo *)sock_xinfo; | |
404 | ||
405 | return ux->acceptcon; | |
406 | } | |
407 | ||
2e38e61c MY |
408 | static bool unix_fill_column(struct proc *proc __attribute__((__unused__)), |
409 | struct sock_xinfo *sock_xinfo, | |
410 | struct sock *sock __attribute__((__unused__)), | |
411 | struct libscols_line *ln __attribute__((__unused__)), | |
412 | int column_id, | |
413 | size_t column_index __attribute__((__unused__)), | |
414 | char **str) | |
415 | { | |
416 | struct unix_xinfo *ux = (struct unix_xinfo *)sock_xinfo; | |
417 | ||
854ddd0d | 418 | switch (column_id) { |
2e38e61c MY |
419 | case COL_UNIX_PATH: |
420 | if (*ux->path) { | |
e0dc84da | 421 | *str = xstrdup(ux->path); |
2e38e61c MY |
422 | return true; |
423 | } | |
424 | break; | |
425 | } | |
426 | ||
427 | return false; | |
428 | } | |
429 | ||
54a06438 | 430 | static const struct sock_xinfo_class unix_xinfo_class = { |
2e38e61c MY |
431 | .get_name = unix_get_name, |
432 | .get_type = unix_get_type, | |
433 | .get_state = unix_get_state, | |
45d61bff | 434 | .get_listening = unix_get_listening, |
2e38e61c MY |
435 | .fill_column = unix_fill_column, |
436 | .free = NULL, | |
437 | }; | |
438 | ||
e8e14a28 | 439 | /* UNIX_LINE_LEN need at least 54 + 21 + UNIX_PATH_MAX + 1. |
eeaf7677 MY |
440 | * |
441 | * An actual number must be used in this definition | |
442 | * since UNIX_LINE_LEN is specified as an argument for | |
443 | * stringify_value(). | |
444 | */ | |
2e38e61c MY |
445 | #define UNIX_LINE_LEN 256 |
446 | static void load_xinfo_from_proc_unix(ino_t netns_inode) | |
447 | { | |
448 | char line[UNIX_LINE_LEN]; | |
449 | FILE *unix_fp; | |
450 | ||
451 | unix_fp = fopen("/proc/net/unix", "r"); | |
452 | if (!unix_fp) | |
453 | return; | |
454 | ||
455 | if (fgets(line, sizeof(line), unix_fp) == NULL) | |
456 | goto out; | |
b3649945 | 457 | if (!(line[0] == 'N' && line[1] == 'u' && line[2] == 'm')) |
2e38e61c MY |
458 | /* Unexpected line */ |
459 | goto out; | |
460 | ||
461 | while (fgets(line, sizeof(line), unix_fp)) { | |
462 | uint64_t flags; | |
463 | uint32_t type; | |
464 | unsigned int st; | |
465 | unsigned long inode; | |
2e38e61c | 466 | struct unix_xinfo *ux; |
eeaf7677 | 467 | char path[UNIX_LINE_LEN + 1] = { 0 }; |
91a484fe | 468 | |
2e38e61c | 469 | |
eeaf7677 MY |
470 | if (sscanf(line, "%*x: %*x %*x %" SCNx64 " %x %x %lu %" |
471 | stringify_value(UNIX_LINE_LEN) "[^\n]", | |
2e38e61c MY |
472 | &flags, &type, &st, &inode, path) < 4) |
473 | continue; | |
474 | ||
475 | if (inode == 0) | |
476 | continue; | |
477 | ||
8ff22ccb | 478 | ux = xcalloc(1, sizeof(*ux)); |
2e38e61c MY |
479 | ux->sock.class = &unix_xinfo_class; |
480 | ux->sock.inode = (ino_t)inode; | |
481 | ux->sock.netns_inode = netns_inode; | |
482 | ||
483 | ux->acceptcon = !!flags; | |
484 | ux->type = type; | |
485 | ux->st = st; | |
91a484fe | 486 | xstrncpy(ux->path, path, sizeof(ux->path)); |
2e38e61c | 487 | |
2ac8d1a3 | 488 | add_sock_info(&ux->sock); |
2e38e61c MY |
489 | } |
490 | ||
491 | out: | |
492 | fclose(unix_fp); | |
493 | } | |
7b2a9be0 MY |
494 | |
495 | /* | |
496 | * AF_INET | |
497 | */ | |
498 | struct inet_xinfo { | |
499 | struct sock_xinfo sock; | |
643f30c7 MY |
500 | struct in_addr local_addr; |
501 | struct in_addr remote_addr; | |
7b2a9be0 MY |
502 | }; |
503 | ||
9020c2e0 | 504 | static uint32_t kernel32_to_cpu(enum sysfs_byteorder byteorder, uint32_t v) |
7b2a9be0 | 505 | { |
9020c2e0 MY |
506 | if (byteorder == SYSFS_BYTEORDER_LITTLE) |
507 | return le32_to_cpu(v); | |
508 | else | |
509 | return be32_to_cpu(v); | |
7b2a9be0 MY |
510 | } |
511 | ||
1656da13 MY |
512 | /* |
513 | * AF_INET6 | |
514 | */ | |
515 | struct inet6_xinfo { | |
516 | struct sock_xinfo sock; | |
517 | struct in6_addr local_addr; | |
518 | struct in6_addr remote_addr; | |
519 | }; | |
520 | ||
7b2a9be0 | 521 | /* |
4a2b51c1 | 522 | * L4 abstract-layer for protocols stacked on IP and IP6. |
7b2a9be0 | 523 | */ |
303b41fe | 524 | enum l4_state { |
7b2a9be0 MY |
525 | /* |
526 | * Taken from linux/include/net/tcp_states.h. | |
527 | * (GPL-2.0-or-later) | |
303b41fe MY |
528 | * |
529 | * UDP and RAW sockets also uses the contents in Linux. | |
7b2a9be0 MY |
530 | */ |
531 | TCP_ESTABLISHED = 1, | |
532 | TCP_SYN_SENT, | |
533 | TCP_SYN_RECV, | |
534 | TCP_FIN_WAIT1, | |
535 | TCP_FIN_WAIT2, | |
536 | TCP_TIME_WAIT, | |
537 | TCP_CLOSE, | |
538 | TCP_CLOSE_WAIT, | |
539 | TCP_LAST_ACK, | |
540 | TCP_LISTEN, | |
541 | TCP_CLOSING, | |
542 | TCP_NEW_SYN_RECV, | |
543 | ||
544 | TCP_MAX_STATES /* Leave at the end! */ | |
545 | }; | |
546 | ||
303b41fe | 547 | static const char *l4_decode_state(enum l4_state st) |
7b2a9be0 | 548 | { |
86242cb0 | 549 | const char * const table [] = { |
7b2a9be0 MY |
550 | [TCP_ESTABLISHED] = "established", |
551 | [TCP_SYN_SENT] = "syn-sent", | |
552 | [TCP_SYN_RECV] = "syn-recv", | |
553 | [TCP_FIN_WAIT1] = "fin-wait1", | |
554 | [TCP_FIN_WAIT2] = "fin-wait2", | |
555 | [TCP_TIME_WAIT] = "time-wait", | |
556 | [TCP_CLOSE] = "close", | |
557 | [TCP_CLOSE_WAIT] = "close-wait", | |
558 | [TCP_LAST_ACK] = "last-ack", | |
559 | [TCP_LISTEN] = "listen", | |
560 | [TCP_CLOSING] = "closing", | |
561 | [TCP_NEW_SYN_RECV] = "new-syn-recv", | |
562 | }; | |
563 | ||
564 | if (st < TCP_MAX_STATES) | |
565 | return table[st]; | |
566 | return "unknown"; | |
567 | } | |
568 | ||
4a2b51c1 | 569 | struct l4_xinfo { |
1656da13 MY |
570 | union { |
571 | struct inet_xinfo inet; | |
572 | struct inet6_xinfo inet6; | |
573 | }; | |
303b41fe | 574 | enum l4_state st; |
4a2b51c1 MY |
575 | }; |
576 | ||
2a4f2b1b | 577 | enum l4_side { L4_LOCAL, L4_REMOTE }; |
1656da13 | 578 | enum l3_decorator { L3_DECO_START, L3_DECO_END }; |
2a4f2b1b | 579 | |
4a2b51c1 MY |
580 | struct l4_xinfo_class { |
581 | struct sock_xinfo_class sock; | |
19e40223 MY |
582 | struct sock_xinfo *(*scan_line)(const struct sock_xinfo_class *, |
583 | char *, | |
584 | ino_t, | |
585 | enum sysfs_byteorder); | |
2a4f2b1b MY |
586 | void * (*get_addr)(struct l4_xinfo *, enum l4_side); |
587 | bool (*is_any_addr)(void *); | |
588 | int family; | |
1656da13 | 589 | const char *l3_decorator[2]; |
4a2b51c1 MY |
590 | }; |
591 | ||
838fa270 MY |
592 | #define l3_fill_column_handler(L3, SOCK_XINFO, COLUMN_ID, STR) __extension__ \ |
593 | ({ \ | |
594 | struct l4_xinfo_class *class = (struct l4_xinfo_class *)SOCK_XINFO->class; \ | |
595 | struct l4_xinfo *l4 = (struct l4_xinfo *)SOCK_XINFO; \ | |
596 | void *n = NULL; \ | |
597 | char s[BUFSIZ]; \ | |
598 | bool r = false; \ | |
599 | \ | |
600 | switch (COLUMN_ID) { \ | |
601 | case COL_##L3##_LADDR: \ | |
602 | n = class->get_addr(l4, L4_LOCAL); \ | |
603 | break; \ | |
604 | case COL_##L3##_RADDR: \ | |
605 | n = class->get_addr(l4, L4_REMOTE); \ | |
606 | break; \ | |
607 | default: \ | |
608 | break; \ | |
609 | } \ | |
610 | \ | |
611 | if (n && inet_ntop(class->family, n, s, sizeof(s))) { \ | |
e0dc84da | 612 | *STR = xstrdup(s); \ |
838fa270 MY |
613 | r = true; \ |
614 | } \ | |
615 | r; \ | |
616 | }) | |
617 | ||
7b2a9be0 MY |
618 | /* |
619 | * TCP | |
620 | */ | |
621 | struct tcp_xinfo { | |
4a2b51c1 | 622 | struct l4_xinfo l4; |
7b2a9be0 MY |
623 | uint16_t local_port; |
624 | uint16_t remote_port; | |
7b2a9be0 MY |
625 | }; |
626 | ||
7b2a9be0 MY |
627 | static char *tcp_get_name(struct sock_xinfo *sock_xinfo, |
628 | struct sock *sock __attribute__((__unused__))) | |
629 | { | |
630 | char *str = NULL; | |
7b2a9be0 | 631 | struct tcp_xinfo *tcp = ((struct tcp_xinfo *)sock_xinfo); |
8db07ebc | 632 | struct l4_xinfo *l4 = &tcp->l4; |
303b41fe | 633 | const char *st_str = l4_decode_state(l4->st); |
838fa270 MY |
634 | struct l4_xinfo_class *class = (struct l4_xinfo_class *)sock_xinfo->class; |
635 | void *laddr = class->get_addr(l4, L4_LOCAL); | |
636 | void *raddr = class->get_addr(l4, L4_REMOTE); | |
637 | char local_s[BUFSIZ]; | |
638 | char remote_s[BUFSIZ]; | |
1656da13 MY |
639 | const char *start = class->l3_decorator[L3_DECO_START]; |
640 | const char *end = class->l3_decorator[L3_DECO_END]; | |
7b2a9be0 | 641 | |
838fa270 | 642 | if (!inet_ntop(class->family, laddr, local_s, sizeof(local_s))) |
3b182ee7 MY |
643 | xasprintf(&str, "state=%s", st_str); |
644 | else if (l4->st == TCP_LISTEN | |
838fa270 | 645 | || !inet_ntop(class->family, raddr, remote_s, sizeof(remote_s))) |
b4e39841 | 646 | xasprintf(&str, "state=%s laddr=%s%s%s:%"PRIu16, |
3b182ee7 | 647 | st_str, |
1656da13 | 648 | start, local_s, end, tcp->local_port); |
7b2a9be0 | 649 | else |
b4e39841 | 650 | xasprintf(&str, "state=%s laddr=%s%s%s:%"PRIu16" raddr=%s%s%s:%"PRIu16, |
3b182ee7 | 651 | st_str, |
1656da13 MY |
652 | start, local_s, end, tcp->local_port, |
653 | start, remote_s, end, tcp->remote_port); | |
7b2a9be0 MY |
654 | return str; |
655 | } | |
656 | ||
657 | static char *tcp_get_type(struct sock_xinfo *sock_xinfo __attribute__((__unused__)), | |
658 | struct sock *sock __attribute__((__unused__))) | |
659 | { | |
e0dc84da | 660 | return xstrdup("stream"); |
7b2a9be0 MY |
661 | } |
662 | ||
663 | static char *tcp_get_state(struct sock_xinfo *sock_xinfo, | |
664 | struct sock *sock __attribute__((__unused__))) | |
665 | { | |
e0dc84da | 666 | return xstrdup(l4_decode_state(((struct l4_xinfo *)sock_xinfo)->st)); |
7b2a9be0 MY |
667 | } |
668 | ||
669 | static bool tcp_get_listening(struct sock_xinfo *sock_xinfo, | |
670 | struct sock *sock __attribute__((__unused__))) | |
671 | { | |
8db07ebc | 672 | return ((struct l4_xinfo *)sock_xinfo)->st == TCP_LISTEN; |
7b2a9be0 MY |
673 | } |
674 | ||
838fa270 MY |
675 | #define l4_fill_column_handler(L4, SOCK_XINFO, COLUMN_ID, STR) __extension__ \ |
676 | ({ \ | |
677 | struct l4_xinfo_class *class = (struct l4_xinfo_class *)SOCK_XINFO->class; \ | |
678 | struct tcp_xinfo *tcp = (struct tcp_xinfo *)SOCK_XINFO; \ | |
679 | struct l4_xinfo *l4 = &tcp->l4; \ | |
680 | void *n = NULL; \ | |
92a0dbce | 681 | bool has_laddr = false; \ |
73df46fc | 682 | unsigned short p; \ |
92a0dbce | 683 | bool has_lport = false; \ |
838fa270 MY |
684 | char s[BUFSIZ]; \ |
685 | bool r = true; \ | |
92a0dbce | 686 | \ |
838fa270 | 687 | switch (COLUMN_ID) { \ |
cda2b2a0 | 688 | case COL_##L4##_LADDR: \ |
838fa270 | 689 | n = class->get_addr(l4, L4_LOCAL); \ |
92a0dbce | 690 | has_laddr = true; \ |
73df46fc | 691 | p = tcp->local_port; \ |
92a0dbce | 692 | /* FALL THROUGH */ \ |
cda2b2a0 | 693 | case COL_##L4##_RADDR: \ |
92a0dbce | 694 | if (!has_laddr) { \ |
838fa270 | 695 | n = class->get_addr(l4, L4_REMOTE); \ |
73df46fc | 696 | p = tcp->remote_port; \ |
92a0dbce | 697 | } \ |
838fa270 | 698 | if (n && inet_ntop(class->family, n, s, sizeof(s))) \ |
b4e39841 | 699 | xasprintf(STR, "%s%s%s:%"PRIu16, \ |
1656da13 MY |
700 | class->l3_decorator[L3_DECO_START], \ |
701 | s, \ | |
702 | class->l3_decorator[L3_DECO_END], \ | |
703 | p); \ | |
92a0dbce | 704 | break; \ |
cda2b2a0 | 705 | case COL_##L4##_LPORT: \ |
73df46fc | 706 | p = tcp->local_port; \ |
92a0dbce MY |
707 | has_lport = true; \ |
708 | /* FALL THROUGH */ \ | |
cda2b2a0 | 709 | case COL_##L4##_RPORT: \ |
92a0dbce | 710 | if (!has_lport) \ |
73df46fc | 711 | p = tcp->remote_port; \ |
b4e39841 | 712 | xasprintf(STR, "%"PRIu16, p); \ |
92a0dbce MY |
713 | break; \ |
714 | default: \ | |
838fa270 MY |
715 | r = false; \ |
716 | break; \ | |
92a0dbce | 717 | } \ |
838fa270 MY |
718 | r; \ |
719 | }) | |
7b2a9be0 | 720 | |
19e40223 MY |
721 | static struct sock_xinfo *tcp_xinfo_scan_line(const struct sock_xinfo_class *class, |
722 | char * line, | |
723 | ino_t netns_inode, | |
724 | enum sysfs_byteorder byteorder) | |
725 | { | |
726 | unsigned long local_addr; | |
727 | unsigned long local_port; | |
728 | unsigned long remote_addr; | |
729 | unsigned long remote_port; | |
730 | unsigned long st; | |
731 | unsigned long long inode; | |
732 | struct tcp_xinfo *tcp; | |
733 | struct inet_xinfo *inet; | |
734 | struct sock_xinfo *sock; | |
735 | ||
736 | if (sscanf(line, "%*d: %lx:%lx %lx:%lx %lx %*x:%*x %*x:%*x %*x %*u %*u %lld", | |
737 | &local_addr, &local_port, &remote_addr, &remote_port, | |
738 | &st, &inode) != 6) | |
739 | return NULL; | |
740 | ||
741 | if (inode == 0) | |
742 | return NULL; | |
743 | ||
8ff22ccb | 744 | tcp = xcalloc(1, sizeof(*tcp)); |
19e40223 MY |
745 | inet = &tcp->l4.inet; |
746 | sock = &inet->sock; | |
747 | sock->class = class; | |
748 | sock->inode = (ino_t)inode; | |
749 | sock->netns_inode = netns_inode; | |
750 | inet->local_addr.s_addr = kernel32_to_cpu(byteorder, local_addr); | |
751 | tcp->local_port = local_port; | |
752 | inet->remote_addr.s_addr = kernel32_to_cpu(byteorder, remote_addr); | |
753 | tcp->remote_port = remote_port; | |
8db07ebc | 754 | tcp->l4.st = st; |
19e40223 MY |
755 | |
756 | return sock; | |
757 | } | |
758 | ||
2a4f2b1b MY |
759 | static void *tcp_xinfo_get_addr(struct l4_xinfo *l4, enum l4_side side) |
760 | { | |
761 | return (side == L4_LOCAL) | |
762 | ? &l4->inet.local_addr | |
763 | : &l4->inet.remote_addr; | |
764 | } | |
765 | ||
766 | static bool tcp_xinfo_is_any_addr(void *addr) | |
767 | { | |
768 | return ((struct in_addr *)addr)->s_addr == INADDR_ANY; | |
769 | } | |
770 | ||
838fa270 MY |
771 | static bool tcp_fill_column(struct proc *proc __attribute__((__unused__)), |
772 | struct sock_xinfo *sock_xinfo, | |
773 | struct sock *sock __attribute__((__unused__)), | |
774 | struct libscols_line *ln __attribute__((__unused__)), | |
775 | int column_id, | |
776 | size_t column_index __attribute__((__unused__)), | |
777 | char **str) | |
778 | { | |
779 | return l3_fill_column_handler(INET, sock_xinfo, column_id, str) | |
780 | || l4_fill_column_handler(TCP, sock_xinfo, column_id, str); | |
781 | } | |
782 | ||
4a2b51c1 MY |
783 | static const struct l4_xinfo_class tcp_xinfo_class = { |
784 | .sock = { | |
785 | .get_name = tcp_get_name, | |
786 | .get_type = tcp_get_type, | |
787 | .get_state = tcp_get_state, | |
788 | .get_listening = tcp_get_listening, | |
789 | .fill_column = tcp_fill_column, | |
790 | .free = NULL, | |
791 | }, | |
19e40223 | 792 | .scan_line = tcp_xinfo_scan_line, |
2a4f2b1b MY |
793 | .get_addr = tcp_xinfo_get_addr, |
794 | .is_any_addr = tcp_xinfo_is_any_addr, | |
795 | .family = AF_INET, | |
1656da13 | 796 | .l3_decorator = {"", ""}, |
7b2a9be0 MY |
797 | }; |
798 | ||
cda2b2a0 | 799 | static bool L4_verify_initial_line(const char *line) |
58d2f31e MY |
800 | { |
801 | /* At least we expect two white spaces. */ | |
cb097fb7 | 802 | if (strncmp(line, " ", 2) != 0) |
58d2f31e MY |
803 | return false; |
804 | line += 2; | |
805 | ||
806 | /* Skip white spaces. */ | |
4658bfb1 | 807 | line = skip_space(line); |
58d2f31e | 808 | |
621cf7e9 | 809 | return strncmp(line, "sl", 2) == 0; |
db79a100 TW |
810 | } |
811 | ||
7b2a9be0 | 812 | #define TCP_LINE_LEN 256 |
cda2b2a0 | 813 | static void load_xinfo_from_proc_inet_L4(ino_t netns_inode, const char *proc_file, |
4a2b51c1 | 814 | const struct l4_xinfo_class *class) |
7b2a9be0 MY |
815 | { |
816 | char line[TCP_LINE_LEN]; | |
817 | FILE *tcp_fp; | |
818 | ||
92a0dbce | 819 | tcp_fp = fopen(proc_file, "r"); |
7b2a9be0 MY |
820 | if (!tcp_fp) |
821 | return; | |
822 | ||
823 | if (fgets(line, sizeof(line), tcp_fp) == NULL) | |
824 | goto out; | |
cda2b2a0 | 825 | if (!L4_verify_initial_line(line)) |
7b2a9be0 MY |
826 | /* Unexpected line */ |
827 | goto out; | |
828 | ||
7578e03f | 829 | enum sysfs_byteorder byteorder = sysfs_get_byteorder(NULL); |
db79a100 | 830 | |
7b2a9be0 | 831 | while (fgets(line, sizeof(line), tcp_fp)) { |
19e40223 MY |
832 | struct sock_xinfo *sock = class->scan_line(&class->sock, line, netns_inode, byteorder); |
833 | if (sock) | |
834 | add_sock_info(sock); | |
7b2a9be0 MY |
835 | } |
836 | ||
837 | out: | |
838 | fclose(tcp_fp); | |
839 | } | |
92a0dbce | 840 | |
92a0dbce MY |
841 | static void load_xinfo_from_proc_tcp(ino_t netns_inode) |
842 | { | |
cda2b2a0 | 843 | load_xinfo_from_proc_inet_L4(netns_inode, |
58d2f31e | 844 | "/proc/net/tcp", |
92a0dbce MY |
845 | &tcp_xinfo_class); |
846 | } | |
847 | ||
848 | /* | |
849 | * UDP | |
850 | */ | |
851 | static char *udp_get_name(struct sock_xinfo *sock_xinfo, | |
852 | struct sock *sock __attribute__((__unused__))) | |
853 | { | |
854 | char *str = NULL; | |
92a0dbce | 855 | struct tcp_xinfo *tcp = ((struct tcp_xinfo *)sock_xinfo); |
8db07ebc | 856 | struct l4_xinfo *l4 = &tcp->l4; |
8db07ebc | 857 | unsigned int st = l4->st; |
303b41fe | 858 | const char *st_str = l4_decode_state(st); |
838fa270 MY |
859 | struct l4_xinfo_class *class = (struct l4_xinfo_class *)sock_xinfo->class; |
860 | void *laddr = class->get_addr(l4, L4_LOCAL); | |
861 | void *raddr = class->get_addr(l4, L4_REMOTE); | |
862 | char local_s[BUFSIZ]; | |
863 | char remote_s[BUFSIZ]; | |
28cf2b21 MY |
864 | const char *start = class->l3_decorator[L3_DECO_START]; |
865 | const char *end = class->l3_decorator[L3_DECO_END]; | |
92a0dbce | 866 | |
838fa270 | 867 | if (!inet_ntop(class->family, laddr, local_s, sizeof(local_s))) |
3b182ee7 | 868 | xasprintf(&str, "state=%s", st_str); |
838fa270 MY |
869 | else if ((class->is_any_addr(raddr) && tcp->remote_port == 0) |
870 | || !inet_ntop(class->family, raddr, remote_s, sizeof(remote_s))) | |
28cf2b21 | 871 | xasprintf(&str, "state=%s laddr=%s%s%s:%"PRIu16, |
3b182ee7 | 872 | st_str, |
28cf2b21 | 873 | start, local_s, end, tcp->local_port); |
92a0dbce | 874 | else |
28cf2b21 | 875 | xasprintf(&str, "state=%s laddr=%s%s%s:%"PRIu16" raddr=%s%s%s:%"PRIu16, |
3b182ee7 | 876 | st_str, |
28cf2b21 MY |
877 | start, local_s, end, tcp->local_port, |
878 | start, remote_s, end, tcp->remote_port); | |
92a0dbce MY |
879 | return str; |
880 | } | |
881 | ||
882 | static char *udp_get_type(struct sock_xinfo *sock_xinfo __attribute__((__unused__)), | |
883 | struct sock *sock __attribute__((__unused__))) | |
884 | { | |
e0dc84da | 885 | return xstrdup("dgram"); |
92a0dbce MY |
886 | } |
887 | ||
838fa270 MY |
888 | static bool udp_fill_column(struct proc *proc __attribute__((__unused__)), |
889 | struct sock_xinfo *sock_xinfo, | |
890 | struct sock *sock __attribute__((__unused__)), | |
891 | struct libscols_line *ln __attribute__((__unused__)), | |
892 | int column_id, | |
893 | size_t column_index __attribute__((__unused__)), | |
894 | char **str) | |
895 | { | |
896 | return l3_fill_column_handler(INET, sock_xinfo, column_id, str) | |
897 | || l4_fill_column_handler(UDP, sock_xinfo, column_id, str); | |
898 | } | |
899 | ||
4a2b51c1 MY |
900 | static const struct l4_xinfo_class udp_xinfo_class = { |
901 | .sock = { | |
902 | .get_name = udp_get_name, | |
903 | .get_type = udp_get_type, | |
904 | .get_state = tcp_get_state, | |
905 | .get_listening = NULL, | |
906 | .fill_column = udp_fill_column, | |
907 | .free = NULL, | |
908 | }, | |
19e40223 | 909 | .scan_line = tcp_xinfo_scan_line, |
2a4f2b1b MY |
910 | .get_addr = tcp_xinfo_get_addr, |
911 | .is_any_addr = tcp_xinfo_is_any_addr, | |
912 | .family = AF_INET, | |
1656da13 | 913 | .l3_decorator = {"", ""}, |
92a0dbce MY |
914 | }; |
915 | ||
92a0dbce MY |
916 | static void load_xinfo_from_proc_udp(ino_t netns_inode) |
917 | { | |
cda2b2a0 | 918 | load_xinfo_from_proc_inet_L4(netns_inode, |
92a0dbce | 919 | "/proc/net/udp", |
92a0dbce MY |
920 | &udp_xinfo_class); |
921 | } | |
0188afb3 | 922 | |
c779f412 MY |
923 | /* |
924 | * UDP-Lite | |
925 | */ | |
926 | static bool udplite_fill_column(struct proc *proc __attribute__((__unused__)), | |
927 | struct sock_xinfo *sock_xinfo, | |
928 | struct sock *sock __attribute__((__unused__)), | |
929 | struct libscols_line *ln __attribute__((__unused__)), | |
930 | int column_id, | |
931 | size_t column_index __attribute__((__unused__)), | |
932 | char **str) | |
933 | { | |
934 | return l3_fill_column_handler(INET, sock_xinfo, column_id, str) | |
935 | || l4_fill_column_handler(UDPLITE, sock_xinfo, column_id, str); | |
936 | } | |
937 | ||
938 | static const struct l4_xinfo_class udplite_xinfo_class = { | |
939 | .sock = { | |
940 | .get_name = udp_get_name, | |
941 | .get_type = udp_get_type, | |
942 | .get_state = tcp_get_state, | |
943 | .get_listening = NULL, | |
944 | .fill_column = udplite_fill_column, | |
945 | .free = NULL, | |
946 | }, | |
947 | .scan_line = tcp_xinfo_scan_line, | |
948 | .get_addr = tcp_xinfo_get_addr, | |
949 | .is_any_addr = tcp_xinfo_is_any_addr, | |
950 | .family = AF_INET, | |
951 | .l3_decorator = {"", ""}, | |
952 | }; | |
953 | ||
954 | static void load_xinfo_from_proc_udplite(ino_t netns_inode) | |
955 | { | |
956 | load_xinfo_from_proc_inet_L4(netns_inode, | |
957 | "/proc/net/udplite", | |
958 | &udplite_xinfo_class); | |
959 | } | |
960 | ||
0188afb3 MY |
961 | /* |
962 | * RAW | |
963 | */ | |
964 | struct raw_xinfo { | |
965 | struct l4_xinfo l4; | |
966 | uint16_t protocol; | |
967 | }; | |
968 | ||
a7cba6f3 MY |
969 | static char *raw_get_name_common(struct sock_xinfo *sock_xinfo, |
970 | struct sock *sock __attribute__((__unused__)), | |
971 | const char *port_label) | |
0188afb3 MY |
972 | { |
973 | char *str = NULL; | |
974 | struct l4_xinfo_class *class = (struct l4_xinfo_class *)sock_xinfo->class; | |
975 | struct raw_xinfo *raw = ((struct raw_xinfo *)sock_xinfo); | |
976 | struct l4_xinfo *l4 = &raw->l4; | |
303b41fe | 977 | const char *st_str = l4_decode_state(l4->st); |
0188afb3 MY |
978 | void *laddr = class->get_addr(l4, L4_LOCAL); |
979 | void *raddr = class->get_addr(l4, L4_REMOTE); | |
980 | char local_s[BUFSIZ]; | |
981 | char remote_s[BUFSIZ]; | |
982 | ||
983 | if (!inet_ntop(class->family, laddr, local_s, sizeof(local_s))) | |
984 | xasprintf(&str, "state=%s", st_str); | |
985 | else if (class->is_any_addr(raddr) | |
986 | || !inet_ntop(class->family, raddr, remote_s, sizeof(remote_s))) | |
a7cba6f3 | 987 | xasprintf(&str, "state=%s %s=%"PRIu16" laddr=%s", |
0188afb3 | 988 | st_str, |
a7cba6f3 | 989 | port_label, |
0188afb3 MY |
990 | raw->protocol, local_s); |
991 | else | |
a7cba6f3 | 992 | xasprintf(&str, "state=%s %s=%"PRIu16" laddr=%s raddr=%s", |
0188afb3 | 993 | st_str, |
a7cba6f3 | 994 | port_label, |
0188afb3 MY |
995 | raw->protocol, local_s, remote_s); |
996 | return str; | |
997 | } | |
998 | ||
a7cba6f3 MY |
999 | static char *raw_get_name(struct sock_xinfo *sock_xinfo, |
1000 | struct sock *sock __attribute__((__unused__))) | |
1001 | { | |
1002 | return raw_get_name_common(sock_xinfo, sock, "protocol"); | |
1003 | } | |
1004 | ||
0188afb3 MY |
1005 | static char *raw_get_type(struct sock_xinfo *sock_xinfo __attribute__((__unused__)), |
1006 | struct sock *sock __attribute__((__unused__))) | |
1007 | { | |
e0dc84da | 1008 | return xstrdup("raw"); |
0188afb3 MY |
1009 | } |
1010 | ||
1011 | static bool raw_fill_column(struct proc *proc __attribute__((__unused__)), | |
1012 | struct sock_xinfo *sock_xinfo, | |
1013 | struct sock *sock __attribute__((__unused__)), | |
1014 | struct libscols_line *ln __attribute__((__unused__)), | |
1015 | int column_id, | |
1016 | size_t column_index __attribute__((__unused__)), | |
1017 | char **str) | |
1018 | { | |
1019 | if (l3_fill_column_handler(INET, sock_xinfo, column_id, str)) | |
1020 | return true; | |
1021 | ||
1022 | if (column_id == COL_RAW_PROTOCOL) { | |
b4e39841 | 1023 | xasprintf(str, "%"PRIu16, |
73df46fc | 1024 | ((struct raw_xinfo *)sock_xinfo)->protocol); |
0188afb3 MY |
1025 | return true; |
1026 | } | |
1027 | ||
1028 | return false; | |
1029 | } | |
1030 | ||
1031 | static struct sock_xinfo *raw_xinfo_scan_line(const struct sock_xinfo_class *class, | |
1032 | char * line, | |
1033 | ino_t netns_inode, | |
1034 | enum sysfs_byteorder byteorder) | |
1035 | { | |
1036 | unsigned long local_addr; | |
1037 | unsigned long protocol; | |
1038 | unsigned long remote_addr; | |
1039 | unsigned long st; | |
1040 | unsigned long long inode; | |
1041 | struct raw_xinfo *raw; | |
1042 | struct inet_xinfo *inet; | |
1043 | struct sock_xinfo *sock; | |
1044 | ||
1045 | if (sscanf(line, "%*d: %lx:%lx %lx:%*x %lx %*x:%*x %*x:%*x %*x %*u %*u %lld", | |
1046 | &local_addr, &protocol, &remote_addr, | |
1047 | &st, &inode) != 5) | |
1048 | return NULL; | |
1049 | ||
1050 | if (inode == 0) | |
1051 | return NULL; | |
1052 | ||
8ff22ccb | 1053 | raw = xcalloc(1, sizeof(*raw)); |
0188afb3 MY |
1054 | inet = &raw->l4.inet; |
1055 | sock = &inet->sock; | |
1056 | sock->class = class; | |
1057 | sock->inode = (ino_t)inode; | |
1058 | sock->netns_inode = netns_inode; | |
1059 | inet->local_addr.s_addr = kernel32_to_cpu(byteorder, local_addr); | |
1060 | inet->remote_addr.s_addr = kernel32_to_cpu(byteorder, remote_addr); | |
1061 | raw->protocol = protocol; | |
1062 | raw->l4.st = st; | |
1063 | ||
1064 | return sock; | |
1065 | } | |
1066 | ||
1067 | static const struct l4_xinfo_class raw_xinfo_class = { | |
1068 | .sock = { | |
1069 | .get_name = raw_get_name, | |
1070 | .get_type = raw_get_type, | |
1071 | .get_state = tcp_get_state, | |
1072 | .get_listening = NULL, | |
1073 | .fill_column = raw_fill_column, | |
1074 | .free = NULL, | |
1075 | }, | |
1076 | .scan_line = raw_xinfo_scan_line, | |
1077 | .get_addr = tcp_xinfo_get_addr, | |
1078 | .is_any_addr = tcp_xinfo_is_any_addr, | |
1079 | .family = AF_INET, | |
1656da13 | 1080 | .l3_decorator = {"", ""}, |
0188afb3 MY |
1081 | }; |
1082 | ||
1083 | static void load_xinfo_from_proc_raw(ino_t netns_inode) | |
1084 | { | |
1085 | load_xinfo_from_proc_inet_L4(netns_inode, | |
1086 | "/proc/net/raw", | |
1087 | &raw_xinfo_class); | |
1088 | } | |
1656da13 | 1089 | |
a7cba6f3 MY |
1090 | /* |
1091 | * PING | |
1092 | */ | |
1093 | static char *ping_get_name(struct sock_xinfo *sock_xinfo, | |
1094 | struct sock *sock __attribute__((__unused__))) | |
1095 | { | |
1096 | return raw_get_name_common(sock_xinfo, sock, "id"); | |
1097 | } | |
1098 | ||
1099 | static char *ping_get_type(struct sock_xinfo *sock_xinfo __attribute__((__unused__)), | |
1100 | struct sock *sock __attribute__((__unused__))) | |
1101 | { | |
e0dc84da | 1102 | return xstrdup("dgram"); |
a7cba6f3 MY |
1103 | } |
1104 | ||
1105 | static bool ping_fill_column(struct proc *proc __attribute__((__unused__)), | |
1106 | struct sock_xinfo *sock_xinfo, | |
1107 | struct sock *sock __attribute__((__unused__)), | |
1108 | struct libscols_line *ln __attribute__((__unused__)), | |
1109 | int column_id, | |
1110 | size_t column_index __attribute__((__unused__)), | |
1111 | char **str) | |
1112 | { | |
1113 | if (l3_fill_column_handler(INET, sock_xinfo, column_id, str)) | |
1114 | return true; | |
1115 | ||
1116 | if (column_id == COL_PING_ID) { | |
1117 | xasprintf(str, "%"PRIu16, | |
1118 | ((struct raw_xinfo *)sock_xinfo)->protocol); | |
1119 | return true; | |
1120 | } | |
1121 | ||
1122 | return false; | |
1123 | } | |
1124 | ||
1125 | static const struct l4_xinfo_class ping_xinfo_class = { | |
1126 | .sock = { | |
1127 | .get_name = ping_get_name, | |
1128 | .get_type = ping_get_type, | |
1129 | .get_state = tcp_get_state, | |
1130 | .get_listening = NULL, | |
1131 | .fill_column = ping_fill_column, | |
1132 | .free = NULL, | |
1133 | }, | |
1134 | .scan_line = raw_xinfo_scan_line, | |
1135 | .get_addr = tcp_xinfo_get_addr, | |
1136 | .is_any_addr = tcp_xinfo_is_any_addr, | |
1137 | .family = AF_INET, | |
1138 | .l3_decorator = {"", ""}, | |
1139 | }; | |
1140 | ||
1141 | static void load_xinfo_from_proc_icmp(ino_t netns_inode) | |
1142 | { | |
1143 | load_xinfo_from_proc_inet_L4(netns_inode, | |
1144 | "/proc/net/icmp", | |
1145 | &ping_xinfo_class); | |
1146 | } | |
1147 | ||
1656da13 MY |
1148 | /* |
1149 | * TCP6 | |
1150 | */ | |
1151 | static struct sock_xinfo *tcp6_xinfo_scan_line(const struct sock_xinfo_class *class, | |
1152 | char * line, | |
1153 | ino_t netns_inode, | |
1154 | enum sysfs_byteorder byteorder) | |
1155 | { | |
1156 | uint32_t local_addr[4]; | |
1157 | unsigned int local_port; | |
1158 | uint32_t remote_addr[4]; | |
1159 | unsigned int remote_port; | |
1160 | unsigned int st; | |
1161 | unsigned long inode; | |
1162 | struct tcp_xinfo *tcp; | |
1163 | struct inet6_xinfo *inet6; | |
1164 | struct sock_xinfo *sock; | |
1165 | ||
1166 | if (sscanf(line, | |
1167 | "%*d: " | |
1168 | "%08x%08x%08x%08x:%04x " | |
1169 | "%08x%08x%08x%08x:%04x " | |
1170 | "%x %*x:%*x %*x:%*x %*x %*u %*d %lu ", | |
1171 | local_addr+0, local_addr+1, local_addr+2, local_addr+3, &local_port, | |
1172 | remote_addr+0, remote_addr+1, remote_addr+2, remote_addr+3, &remote_port, | |
1173 | &st, &inode) != 12) | |
1174 | return NULL; | |
1175 | ||
1176 | if (inode == 0) | |
1177 | return NULL; | |
1178 | ||
8ff22ccb | 1179 | tcp = xmalloc(sizeof(*tcp)); |
1656da13 MY |
1180 | inet6 = &tcp->l4.inet6; |
1181 | sock = &inet6->sock; | |
1182 | sock->class = class; | |
1183 | sock->inode = (ino_t)inode; | |
1184 | sock->netns_inode = netns_inode; | |
1185 | tcp->local_port = local_port; | |
1186 | for (int i = 0; i < 4; i++) { | |
1187 | inet6->local_addr.s6_addr32[i] = kernel32_to_cpu(byteorder, local_addr[i]); | |
1188 | inet6->remote_addr.s6_addr32[i] = kernel32_to_cpu(byteorder, remote_addr[i]); | |
1189 | } | |
1190 | tcp->remote_port = remote_port; | |
1191 | tcp->l4.st = st; | |
1192 | ||
1193 | return sock; | |
1194 | } | |
1195 | ||
1196 | static bool tcp6_fill_column(struct proc *proc __attribute__((__unused__)), | |
1197 | struct sock_xinfo *sock_xinfo, | |
1198 | struct sock *sock __attribute__((__unused__)), | |
1199 | struct libscols_line *ln __attribute__((__unused__)), | |
1200 | int column_id, | |
1201 | size_t column_index __attribute__((__unused__)), | |
1202 | char **str) | |
1203 | { | |
1204 | return l3_fill_column_handler(INET6, sock_xinfo, column_id, str) | |
1205 | || l4_fill_column_handler(TCP, sock_xinfo, column_id, str); | |
1206 | } | |
1207 | ||
1208 | static void *tcp6_xinfo_get_addr(struct l4_xinfo * l4, enum l4_side side) | |
1209 | { | |
1210 | return (side == L4_LOCAL) | |
1211 | ? &l4->inet6.local_addr | |
1212 | : &l4->inet6.remote_addr; | |
1213 | } | |
1214 | ||
1215 | static bool tcp6_xinfo_is_any_addr(void *addr) | |
1216 | { | |
1217 | return IN6_ARE_ADDR_EQUAL(addr, &(struct in6_addr)IN6ADDR_ANY_INIT); | |
1218 | } | |
1219 | ||
1220 | static const struct l4_xinfo_class tcp6_xinfo_class = { | |
1221 | .sock = { | |
1222 | .get_name = tcp_get_name, | |
1223 | .get_type = tcp_get_type, | |
1224 | .get_state = tcp_get_state, | |
1225 | .get_listening = tcp_get_listening, | |
1226 | .fill_column = tcp6_fill_column, | |
1227 | .free = NULL, | |
1228 | }, | |
1229 | .scan_line = tcp6_xinfo_scan_line, | |
1230 | .get_addr = tcp6_xinfo_get_addr, | |
1231 | .is_any_addr = tcp6_xinfo_is_any_addr, | |
1232 | .family = AF_INET6, | |
1233 | .l3_decorator = {"[", "]"}, | |
1234 | }; | |
1235 | ||
1236 | static void load_xinfo_from_proc_tcp6(ino_t netns_inode) | |
1237 | { | |
1238 | load_xinfo_from_proc_inet_L4(netns_inode, | |
1239 | "/proc/net/tcp6", | |
1240 | &tcp6_xinfo_class); | |
1241 | } | |
28cf2b21 MY |
1242 | |
1243 | /* | |
1244 | * UDP6 | |
1245 | */ | |
1246 | static bool udp6_fill_column(struct proc *proc __attribute__((__unused__)), | |
1247 | struct sock_xinfo *sock_xinfo, | |
1248 | struct sock *sock __attribute__((__unused__)), | |
1249 | struct libscols_line *ln __attribute__((__unused__)), | |
1250 | int column_id, | |
1251 | size_t column_index __attribute__((__unused__)), | |
1252 | char **str) | |
1253 | { | |
1254 | return l3_fill_column_handler(INET6, sock_xinfo, column_id, str) | |
1255 | || l4_fill_column_handler(UDP, sock_xinfo, column_id, str); | |
1256 | } | |
1257 | ||
1258 | static const struct l4_xinfo_class udp6_xinfo_class = { | |
1259 | .sock = { | |
1260 | .get_name = udp_get_name, | |
1261 | .get_type = udp_get_type, | |
1262 | .get_state = tcp_get_state, | |
1263 | .get_listening = NULL, | |
1264 | .fill_column = udp6_fill_column, | |
1265 | .free = NULL, | |
1266 | }, | |
1267 | .scan_line = tcp6_xinfo_scan_line, | |
1268 | .get_addr = tcp6_xinfo_get_addr, | |
1269 | .is_any_addr = tcp6_xinfo_is_any_addr, | |
1270 | .family = AF_INET6, | |
1271 | .l3_decorator = {"[", "]"}, | |
1272 | }; | |
1273 | ||
1274 | static void load_xinfo_from_proc_udp6(ino_t netns_inode) | |
1275 | { | |
1276 | load_xinfo_from_proc_inet_L4(netns_inode, | |
1277 | "/proc/net/udp6", | |
1278 | &udp6_xinfo_class); | |
1279 | } | |
2dd373c3 | 1280 | |
93bca151 MY |
1281 | /* |
1282 | * UDPLITEv6 | |
1283 | */ | |
1284 | static bool udplite6_fill_column(struct proc *proc __attribute__((__unused__)), | |
1285 | struct sock_xinfo *sock_xinfo, | |
1286 | struct sock *sock __attribute__((__unused__)), | |
1287 | struct libscols_line *ln __attribute__((__unused__)), | |
1288 | int column_id, | |
1289 | size_t column_index __attribute__((__unused__)), | |
1290 | char **str) | |
1291 | { | |
1292 | return l3_fill_column_handler(INET6, sock_xinfo, column_id, str) | |
1293 | || l4_fill_column_handler(UDPLITE, sock_xinfo, column_id, str); | |
1294 | } | |
1295 | ||
1296 | static const struct l4_xinfo_class udplite6_xinfo_class = { | |
1297 | .sock = { | |
1298 | .get_name = udp_get_name, | |
1299 | .get_type = udp_get_type, | |
1300 | .get_state = tcp_get_state, | |
1301 | .get_listening = NULL, | |
1302 | .fill_column = udplite6_fill_column, | |
1303 | .free = NULL, | |
1304 | }, | |
1305 | .scan_line = tcp6_xinfo_scan_line, | |
1306 | .get_addr = tcp6_xinfo_get_addr, | |
1307 | .is_any_addr = tcp6_xinfo_is_any_addr, | |
1308 | .family = AF_INET6, | |
1309 | .l3_decorator = {"[", "]"}, | |
1310 | }; | |
1311 | ||
1312 | static void load_xinfo_from_proc_udplite6(ino_t netns_inode) | |
1313 | { | |
1314 | load_xinfo_from_proc_inet_L4(netns_inode, | |
1315 | "/proc/net/udplite6", | |
1316 | &udplite6_xinfo_class); | |
1317 | } | |
1318 | ||
2dd373c3 MY |
1319 | /* |
1320 | * RAW6 | |
1321 | */ | |
1322 | static struct sock_xinfo *raw6_xinfo_scan_line(const struct sock_xinfo_class *class, | |
1323 | char * line, | |
1324 | ino_t netns_inode, | |
1325 | enum sysfs_byteorder byteorder) | |
1326 | { | |
1327 | uint32_t local_addr[4]; | |
1328 | unsigned int protocol; | |
1329 | uint32_t remote_addr[4]; | |
1330 | unsigned int st; | |
1331 | unsigned long inode; | |
1332 | struct raw_xinfo *raw; | |
1333 | struct inet6_xinfo *inet6; | |
1334 | struct sock_xinfo *sock; | |
1335 | ||
1336 | if (sscanf(line, | |
1337 | "%*d: " | |
1338 | "%08x%08x%08x%08x:%04x " | |
1339 | "%08x%08x%08x%08x:0000 " | |
1340 | "%x %*x:%*x %*x:%*x %*x %*u %*d %lu ", | |
1341 | local_addr+0, local_addr+1, local_addr+2, local_addr+3, &protocol, | |
1342 | remote_addr+0, remote_addr+1, remote_addr+2, remote_addr+3, | |
1343 | &st, &inode) != 11) | |
1344 | return NULL; | |
1345 | ||
1346 | if (inode == 0) | |
1347 | return NULL; | |
1348 | ||
1349 | raw = xmalloc(sizeof(*raw)); | |
1350 | inet6 = &raw->l4.inet6; | |
1351 | sock = &inet6->sock; | |
1352 | sock->class = class; | |
1353 | sock->inode = (ino_t)inode; | |
1354 | sock->netns_inode = netns_inode; | |
1355 | for (int i = 0; i < 4; i++) { | |
1356 | inet6->local_addr.s6_addr32[i] = kernel32_to_cpu(byteorder, local_addr[i]); | |
1357 | inet6->remote_addr.s6_addr32[i] = kernel32_to_cpu(byteorder, remote_addr[i]); | |
1358 | } | |
1359 | raw->protocol = protocol; | |
1360 | raw->l4.st = st; | |
1361 | ||
1362 | return sock; | |
1363 | } | |
1364 | ||
1365 | static bool raw6_fill_column(struct proc *proc __attribute__((__unused__)), | |
1366 | struct sock_xinfo *sock_xinfo, | |
1367 | struct sock *sock __attribute__((__unused__)), | |
1368 | struct libscols_line *ln __attribute__((__unused__)), | |
1369 | int column_id, | |
1370 | size_t column_index __attribute__((__unused__)), | |
1371 | char **str) | |
1372 | { | |
1373 | struct raw_xinfo *raw; | |
1374 | ||
1375 | if (l3_fill_column_handler(INET6, sock_xinfo, column_id, str)) | |
1376 | return true; | |
1377 | ||
1378 | raw = (struct raw_xinfo *)sock_xinfo; | |
1379 | if (column_id == COL_RAW_PROTOCOL) { | |
1380 | xasprintf(str, "%"PRIu16, raw->protocol); | |
1381 | return true; | |
1382 | } | |
1383 | ||
1384 | return false; | |
1385 | } | |
1386 | ||
1387 | static const struct l4_xinfo_class raw6_xinfo_class = { | |
1388 | .sock = { | |
1389 | .get_name = raw_get_name, | |
1390 | .get_type = raw_get_type, | |
1391 | .get_state = tcp_get_state, | |
1392 | .get_listening = NULL, | |
1393 | .fill_column = raw6_fill_column, | |
1394 | .free = NULL, | |
1395 | }, | |
1396 | .scan_line = raw6_xinfo_scan_line, | |
1397 | .get_addr = tcp6_xinfo_get_addr, | |
1398 | .is_any_addr = tcp6_xinfo_is_any_addr, | |
1399 | .family = AF_INET6, | |
1400 | .l3_decorator = {"[", "]"}, | |
1401 | }; | |
1402 | ||
1403 | static void load_xinfo_from_proc_raw6(ino_t netns_inode) | |
1404 | { | |
1405 | load_xinfo_from_proc_inet_L4(netns_inode, | |
1406 | "/proc/net/raw6", | |
1407 | &raw6_xinfo_class); | |
1408 | } | |
0b1dfd03 MY |
1409 | |
1410 | /* | |
1411 | * PINGv6 | |
1412 | */ | |
1413 | static bool ping6_fill_column(struct proc *proc __attribute__((__unused__)), | |
1414 | struct sock_xinfo *sock_xinfo, | |
1415 | struct sock *sock __attribute__((__unused__)), | |
1416 | struct libscols_line *ln __attribute__((__unused__)), | |
1417 | int column_id, | |
1418 | size_t column_index __attribute__((__unused__)), | |
1419 | char **str) | |
1420 | { | |
1421 | if (l3_fill_column_handler(INET6, sock_xinfo, column_id, str)) | |
1422 | return true; | |
1423 | ||
1424 | if (column_id == COL_PING_ID) { | |
1425 | xasprintf(str, "%"PRIu16, | |
1426 | ((struct raw_xinfo *)sock_xinfo)->protocol); | |
1427 | return true; | |
1428 | } | |
1429 | ||
1430 | return false; | |
1431 | } | |
1432 | ||
1433 | static const struct l4_xinfo_class ping6_xinfo_class = { | |
1434 | .sock = { | |
1435 | .get_name = ping_get_name, | |
1436 | .get_type = ping_get_type, | |
1437 | .get_state = tcp_get_state, | |
1438 | .get_listening = NULL, | |
1439 | .fill_column = ping6_fill_column, | |
1440 | .free = NULL, | |
1441 | }, | |
1442 | .scan_line = raw6_xinfo_scan_line, | |
1443 | .get_addr = tcp6_xinfo_get_addr, | |
1444 | .is_any_addr = tcp6_xinfo_is_any_addr, | |
1445 | .family = AF_INET6, | |
1446 | .l3_decorator = {"[", "]"}, | |
1447 | }; | |
1448 | ||
1449 | static void load_xinfo_from_proc_icmp6(ino_t netns_inode) | |
1450 | { | |
1451 | load_xinfo_from_proc_inet_L4(netns_inode, | |
1452 | "/proc/net/icmp6", | |
1453 | &ping6_xinfo_class); | |
1454 | } | |
b53cc896 MY |
1455 | |
1456 | /* | |
1457 | * NETLINK | |
1458 | */ | |
1459 | struct netlink_xinfo { | |
1460 | struct sock_xinfo sock; | |
1461 | uint16_t protocol; | |
1462 | uint32_t lportid; /* netlink_diag may provide rportid. */ | |
1463 | uint32_t groups; | |
1464 | }; | |
1465 | ||
1466 | static const char *netlink_decode_protocol(uint16_t protocol) | |
1467 | { | |
1468 | switch (protocol) { | |
1469 | case NETLINK_ROUTE: | |
1470 | return "route"; | |
1471 | case NETLINK_UNUSED: | |
1472 | return "unused"; | |
1473 | case NETLINK_USERSOCK: | |
1474 | return "usersock"; | |
1475 | case NETLINK_FIREWALL: | |
1476 | return "firewall"; | |
1477 | case NETLINK_SOCK_DIAG: | |
1478 | return "sock_diag"; | |
1479 | case NETLINK_NFLOG: | |
1480 | return "nflog"; | |
1481 | case NETLINK_XFRM: | |
1482 | return "xfrm"; | |
1483 | case NETLINK_SELINUX: | |
1484 | return "selinux"; | |
1485 | case NETLINK_ISCSI: | |
1486 | return "iscsi"; | |
1487 | case NETLINK_AUDIT: | |
1488 | return "audit"; | |
1489 | case NETLINK_FIB_LOOKUP: | |
1490 | return "fib_lookup"; | |
1491 | case NETLINK_CONNECTOR: | |
1492 | return "connector"; | |
1493 | case NETLINK_NETFILTER: | |
1494 | return "netfilter"; | |
1495 | case NETLINK_IP6_FW: | |
1496 | return "ip6_fw"; | |
1497 | case NETLINK_DNRTMSG: | |
1498 | return "dnrtmsg"; | |
1499 | case NETLINK_KOBJECT_UEVENT: | |
1500 | return "kobject_uevent"; | |
1501 | case NETLINK_GENERIC: | |
1502 | return "generic"; | |
1503 | case NETLINK_SCSITRANSPORT: | |
1504 | return "scsitransport"; | |
1505 | case NETLINK_ECRYPTFS: | |
1506 | return "ecryptfs"; | |
1507 | case NETLINK_RDMA: | |
1508 | return "rdma"; | |
1509 | case NETLINK_CRYPTO: | |
1510 | return "crypto"; | |
1511 | #ifdef NETLINK_SMC | |
1512 | case NETLINK_SMC: | |
1513 | return "smc"; | |
1514 | #endif | |
1515 | default: | |
1516 | return "unknown"; | |
1517 | } | |
1518 | } | |
1519 | ||
1520 | static char *netlink_get_name(struct sock_xinfo *sock_xinfo, | |
1521 | struct sock *sock __attribute__((__unused__))) | |
1522 | { | |
1523 | struct netlink_xinfo *nl = (struct netlink_xinfo *)sock_xinfo; | |
1524 | char *str = NULL; | |
1525 | const char *protocol = netlink_decode_protocol(nl->protocol); | |
1526 | ||
1527 | if (nl->groups) | |
1528 | xasprintf(&str, "protocol=%s lport=%"PRIu16 " groups=%"PRIu32, | |
1529 | protocol, | |
1530 | nl->lportid, nl->groups); | |
1531 | else | |
1532 | xasprintf(&str, "protocol=%s lport=%"PRIu16, | |
1533 | protocol, | |
1534 | nl->lportid); | |
1535 | return str; | |
1536 | } | |
1537 | ||
1538 | static char *netlink_get_type(struct sock_xinfo *sock_xinfo __attribute__((__unused__)), | |
1539 | struct sock *sock __attribute__((__unused__))) | |
1540 | { | |
e0dc84da | 1541 | return xstrdup("raw"); |
b53cc896 MY |
1542 | } |
1543 | ||
1544 | static bool netlink_fill_column(struct proc *proc __attribute__((__unused__)), | |
1545 | struct sock_xinfo *sock_xinfo, | |
1546 | struct sock *sock __attribute__((__unused__)), | |
1547 | struct libscols_line *ln __attribute__((__unused__)), | |
1548 | int column_id, | |
1549 | size_t column_index __attribute__((__unused__)), | |
1550 | char **str) | |
1551 | { | |
1552 | struct netlink_xinfo *nl = (struct netlink_xinfo *)sock_xinfo; | |
1553 | ||
1554 | switch (column_id) { | |
1555 | case COL_NETLINK_GROUPS: | |
1556 | xasprintf(str, "%"PRIu32, nl->groups); | |
1557 | return true; | |
1558 | case COL_NETLINK_LPORT: | |
1559 | xasprintf(str, "%"PRIu32, nl->lportid); | |
1560 | return true; | |
1561 | case COL_NETLINK_PROTOCOL: | |
e0dc84da | 1562 | *str = xstrdup(netlink_decode_protocol(nl->protocol)); |
b53cc896 MY |
1563 | return true; |
1564 | } | |
1565 | ||
1566 | return false; | |
1567 | } | |
1568 | ||
1569 | static const struct sock_xinfo_class netlink_xinfo_class = { | |
1570 | .get_name = netlink_get_name, | |
1571 | .get_type = netlink_get_type, | |
1572 | .get_state = NULL, | |
1573 | .get_listening = NULL, | |
1574 | .fill_column = netlink_fill_column, | |
1575 | .free = NULL, | |
1576 | }; | |
1577 | ||
1578 | static void load_xinfo_from_proc_netlink(ino_t netns_inode) | |
1579 | { | |
1580 | char line[BUFSIZ]; | |
1581 | FILE *netlink_fp; | |
1582 | ||
1583 | netlink_fp = fopen("/proc/net/netlink", "r"); | |
1584 | if (!netlink_fp) | |
1585 | return; | |
1586 | ||
1587 | if (fgets(line, sizeof(line), netlink_fp) == NULL) | |
1588 | goto out; | |
1589 | if (!(line[0] == 's' && line[1] == 'k')) | |
1590 | /* Unexpected line */ | |
1591 | goto out; | |
1592 | ||
1593 | while (fgets(line, sizeof(line), netlink_fp)) { | |
1594 | uint16_t protocol; | |
1595 | uint32_t lportid; | |
1596 | uint32_t groups; | |
1597 | unsigned long inode; | |
1598 | struct netlink_xinfo *nl; | |
1599 | ||
1600 | if (sscanf(line, "%*x %" SCNu16 " %" SCNu32 " %" SCNx32 " %*d %*d %*d %*d %*u %lu", | |
1601 | &protocol, &lportid, &groups, &inode) < 4) | |
1602 | continue; | |
1603 | ||
1604 | if (inode == 0) | |
1605 | continue; | |
1606 | ||
1607 | nl = xcalloc(1, sizeof(*nl)); | |
1608 | nl->sock.class = &netlink_xinfo_class; | |
1609 | nl->sock.inode = (ino_t)inode; | |
1610 | nl->sock.netns_inode = netns_inode; | |
1611 | ||
1612 | nl->protocol = protocol; | |
1613 | nl->lportid = lportid; | |
1614 | nl->groups = groups; | |
1615 | ||
1616 | add_sock_info(&nl->sock); | |
1617 | } | |
1618 | ||
1619 | out: | |
1620 | fclose(netlink_fp); | |
1621 | } | |
adfc156a MY |
1622 | |
1623 | /* | |
1624 | * PACKET | |
1625 | */ | |
1626 | struct packet_xinfo { | |
1627 | struct sock_xinfo sock; | |
1628 | uint16_t type; | |
1629 | uint16_t protocol; | |
1630 | unsigned int iface; | |
1631 | }; | |
1632 | ||
1633 | static const char *packet_decode_protocol(uint16_t proto) | |
1634 | { | |
1635 | switch (proto) { | |
1636 | case 0: | |
1637 | return NULL; | |
1638 | case ETH_P_802_3: | |
1639 | return "802_3"; | |
1640 | case ETH_P_AX25: | |
1641 | return "ax25"; | |
1642 | case ETH_P_ALL: | |
1643 | return "all"; | |
1644 | case ETH_P_802_2: | |
1645 | return "802_2"; | |
1646 | case ETH_P_SNAP: | |
1647 | return "snap"; | |
1648 | case ETH_P_DDCMP: | |
1649 | return "ddcmp"; | |
1650 | case ETH_P_WAN_PPP: | |
1651 | return "wan_ppp"; | |
1652 | case ETH_P_PPP_MP: | |
1653 | return "ppp_mp"; | |
1654 | case ETH_P_LOCALTALK: | |
1655 | return "localtalk"; | |
1656 | case ETH_P_CAN: | |
1657 | return "can"; | |
1658 | case ETH_P_CANFD: | |
1659 | return "canfd"; | |
1660 | #ifdef ETH_P_CANXL | |
1661 | case ETH_P_CANXL: | |
1662 | return "canxl"; | |
1663 | #endif | |
1664 | case ETH_P_PPPTALK: | |
1665 | return "ppptalk"; | |
1666 | case ETH_P_TR_802_2: | |
1667 | return "tr_802_2"; | |
1668 | case ETH_P_MOBITEX: | |
1669 | return "mobitex"; | |
1670 | case ETH_P_CONTROL: | |
1671 | return "control"; | |
1672 | case ETH_P_IRDA: | |
1673 | return "irda"; | |
1674 | case ETH_P_ECONET: | |
1675 | return "econet"; | |
1676 | case ETH_P_HDLC: | |
1677 | return "hdlc"; | |
1678 | case ETH_P_ARCNET: | |
1679 | return "arcnet"; | |
1680 | case ETH_P_DSA: | |
1681 | return "dsa"; | |
1682 | case ETH_P_TRAILER: | |
1683 | return "trailer"; | |
1684 | case ETH_P_PHONET: | |
1685 | return "phonet"; | |
1686 | case ETH_P_IEEE802154: | |
1687 | return "ieee802154"; | |
1688 | case ETH_P_CAIF: | |
1689 | return "caif"; | |
1690 | #ifdef ETH_P_XDSA | |
1691 | case ETH_P_XDSA: | |
1692 | return "xdsa"; | |
1693 | #endif | |
1694 | #ifdef ETH_P_MAP | |
1695 | case ETH_P_MAP: | |
1696 | return "map"; | |
1697 | #endif | |
1698 | #ifdef ETH_P_MCTP | |
1699 | case ETH_P_MCTP: | |
1700 | return "mctp"; | |
1701 | #endif | |
1702 | case ETH_P_LOOP: | |
1703 | return "loop"; | |
1704 | case ETH_P_PUP: | |
1705 | return "pup"; | |
1706 | case ETH_P_PUPAT: | |
1707 | return "pupat"; | |
1708 | #ifdef ETH_P_TSN | |
1709 | case ETH_P_TSN: | |
1710 | return "tsn"; | |
1711 | #endif | |
1712 | #ifdef ETH_P_ERSPAN2 | |
1713 | case ETH_P_ERSPAN2: | |
1714 | return "erspan2"; | |
1715 | #endif | |
1716 | case ETH_P_IP: | |
1717 | return "ip"; | |
1718 | case ETH_P_X25: | |
1719 | return "x25"; | |
1720 | case ETH_P_ARP: | |
1721 | return "arp"; | |
1722 | case ETH_P_BPQ: | |
1723 | return "bpq"; | |
1724 | case ETH_P_IEEEPUP: | |
1725 | return "ieeepup"; | |
1726 | case ETH_P_IEEEPUPAT: | |
1727 | return "ieeepupat"; | |
1728 | case ETH_P_BATMAN: | |
1729 | return "batman"; | |
1730 | case ETH_P_DEC: | |
1731 | return "dec"; | |
1732 | case ETH_P_DNA_DL: | |
1733 | return "dna_dl"; | |
1734 | case ETH_P_DNA_RC: | |
1735 | return "dna_rc"; | |
1736 | case ETH_P_DNA_RT: | |
1737 | return "dna_rt"; | |
1738 | case ETH_P_LAT: | |
1739 | return "lat"; | |
1740 | case ETH_P_DIAG: | |
1741 | return "diag"; | |
1742 | case ETH_P_CUST: | |
1743 | return "cust"; | |
1744 | case ETH_P_SCA: | |
1745 | return "sca"; | |
1746 | case ETH_P_TEB: | |
1747 | return "teb"; | |
1748 | case ETH_P_RARP: | |
1749 | return "rarp"; | |
1750 | case ETH_P_ATALK: | |
1751 | return "atalk"; | |
1752 | case ETH_P_AARP: | |
1753 | return "aarp"; | |
1754 | case ETH_P_8021Q: | |
1755 | return "8021q"; | |
1756 | #ifdef ETH_P_ERSPAN | |
1757 | case ETH_P_ERSPAN: | |
1758 | return "erspan"; | |
1759 | #endif | |
1760 | case ETH_P_IPX: | |
1761 | return "ipx"; | |
1762 | case ETH_P_IPV6: | |
1763 | return "ipv6"; | |
1764 | case ETH_P_PAUSE: | |
1765 | return "pause"; | |
1766 | case ETH_P_SLOW: | |
1767 | return "slow"; | |
1768 | case ETH_P_WCCP: | |
1769 | return "wccp"; | |
1770 | case ETH_P_MPLS_UC: | |
1771 | return "mpls_uc"; | |
1772 | case ETH_P_MPLS_MC: | |
1773 | return "mpls_mc"; | |
1774 | case ETH_P_ATMMPOA: | |
1775 | return "atmmpoa"; | |
1776 | #ifdef ETH_P_PPP_DISC | |
1777 | case ETH_P_PPP_DISC: | |
1778 | return "ppp_disc"; | |
1779 | #endif | |
1780 | #ifdef ETH_P_PPP_SES | |
1781 | case ETH_P_PPP_SES: | |
1782 | return "ppp_ses"; | |
1783 | #endif | |
1784 | case ETH_P_LINK_CTL: | |
1785 | return "link_ctl"; | |
1786 | case ETH_P_ATMFATE: | |
1787 | return "atmfate"; | |
1788 | case ETH_P_PAE: | |
1789 | return "pae"; | |
1790 | #ifdef ETH_P_PROFINET | |
1791 | case ETH_P_PROFINET: | |
1792 | return "profinet"; | |
1793 | #endif | |
1794 | #ifdef ETH_P_REALTEK | |
1795 | case ETH_P_REALTEK: | |
1796 | return "realtek"; | |
1797 | #endif | |
1798 | case ETH_P_AOE: | |
1799 | return "aoe"; | |
1800 | #ifdef ETH_P_ETHERCAT | |
1801 | case ETH_P_ETHERCAT: | |
1802 | return "ethercat"; | |
1803 | #endif | |
1804 | case ETH_P_8021AD: | |
1805 | return "8021ad"; | |
1806 | case ETH_P_802_EX1: | |
1807 | return "802_ex1"; | |
1808 | #ifdef ETH_P_PREAUTH | |
1809 | case ETH_P_PREAUTH: | |
1810 | return "preauth"; | |
1811 | #endif | |
1812 | case ETH_P_TIPC: | |
1813 | return "tipc"; | |
1814 | #ifdef ETH_P_LLDP | |
1815 | case ETH_P_LLDP: | |
1816 | return "lldp"; | |
1817 | #endif | |
1818 | #ifdef ETH_P_MRP | |
1819 | case ETH_P_MRP: | |
1820 | return "mrp"; | |
1821 | #endif | |
1822 | #ifdef ETH_P_MACSEC | |
1823 | case ETH_P_MACSEC: | |
1824 | return "macsec"; | |
1825 | #endif | |
1826 | case ETH_P_8021AH: | |
1827 | return "8021ah"; | |
1828 | #ifdef ETH_P_MVRP | |
1829 | case ETH_P_MVRP: | |
1830 | return "mvrp"; | |
1831 | #endif | |
1832 | case ETH_P_1588: | |
1833 | return "1588"; | |
1834 | #ifdef ETH_P_NCSI | |
1835 | case ETH_P_NCSI: | |
1836 | return "ncsi"; | |
1837 | #endif | |
1838 | #ifdef ETH_P_PRP | |
1839 | case ETH_P_PRP: | |
1840 | return "prp"; | |
1841 | #endif | |
1842 | #ifdef ETH_P_CFM | |
1843 | case ETH_P_CFM: | |
1844 | return "cfm"; | |
1845 | #endif | |
1846 | case ETH_P_FCOE: | |
1847 | return "fcoe"; | |
1848 | #ifdef ETH_P_IBOE | |
1849 | case ETH_P_IBOE: | |
1850 | return "iboe"; | |
1851 | #endif | |
1852 | case ETH_P_TDLS: | |
1853 | return "tdls"; | |
1854 | case ETH_P_FIP: | |
1855 | return "fip"; | |
1856 | #ifdef ETH_P_80221 | |
1857 | case ETH_P_80221: | |
1858 | return "80221"; | |
1859 | #endif | |
1860 | #ifdef ETH_P_HSR | |
1861 | case ETH_P_HSR: | |
1862 | return "hsr"; | |
1863 | #endif | |
1864 | #ifdef ETH_P_NSH | |
1865 | case ETH_P_NSH: | |
1866 | return "nsh"; | |
1867 | #endif | |
1868 | #ifdef ETH_P_LOOPBACK | |
1869 | case ETH_P_LOOPBACK: | |
1870 | return "loopback"; | |
1871 | #endif | |
1872 | case ETH_P_QINQ1: | |
1873 | return "qinq1"; | |
1874 | case ETH_P_QINQ2: | |
1875 | return "qinq2"; | |
1876 | case ETH_P_QINQ3: | |
1877 | return "qinq3"; | |
1878 | case ETH_P_EDSA: | |
1879 | return "edsa"; | |
1880 | #ifdef ETH_P_DSA_8021Q | |
1881 | case ETH_P_DSA_8021Q: | |
1882 | return "dsa_8021q"; | |
1883 | #endif | |
1884 | #ifdef ETH_P_DSA_A5PSW | |
1885 | case ETH_P_DSA_A5PSW: | |
1886 | return "dsa_a5psw"; | |
1887 | #endif | |
1888 | #ifdef ETH_P_IFE | |
1889 | case ETH_P_IFE: | |
1890 | return "ife"; | |
1891 | #endif | |
1892 | case ETH_P_AF_IUCV: | |
1893 | return "af_iucv"; | |
1894 | #ifdef ETH_P_802_3_MIN | |
1895 | case ETH_P_802_3_MIN: | |
1896 | return "802_3_min"; | |
1897 | #endif | |
1898 | default: | |
1899 | return "unknown"; | |
1900 | } | |
1901 | } | |
1902 | ||
1903 | static char *packet_get_name(struct sock_xinfo *sock_xinfo, | |
1904 | struct sock *sock __attribute__((__unused__))) | |
1905 | { | |
1906 | struct packet_xinfo *pkt = (struct packet_xinfo *)sock_xinfo; | |
1907 | char *str = NULL; | |
1908 | const char *type = sock_decode_type(pkt->type); | |
1909 | const char *proto = packet_decode_protocol(pkt->protocol); | |
1910 | const char *iface = get_iface_name(sock_xinfo->netns_inode, | |
1911 | pkt->iface); | |
1912 | ||
1913 | if (iface && proto) | |
1914 | xasprintf(&str, "type=%s protocol=%s iface=%s", | |
1915 | type, proto, iface); | |
1916 | else if (proto) | |
1917 | xasprintf(&str, "type=%s protocol=%s", | |
1918 | type, proto); | |
1919 | else if (iface) | |
1920 | xasprintf(&str, "type=%s iface=%s", | |
1921 | type, iface); | |
1922 | else | |
1923 | xasprintf(&str, "type=%s", type); | |
1924 | ||
1925 | return str; | |
1926 | } | |
1927 | ||
1928 | static char *packet_get_type(struct sock_xinfo *sock_xinfo __attribute__((__unused__)), | |
1929 | struct sock *sock __attribute__((__unused__))) | |
1930 | { | |
1931 | const char *str; | |
1932 | struct packet_xinfo *pkt = (struct packet_xinfo *)sock_xinfo; | |
1933 | ||
1934 | str = sock_decode_type(pkt->type); | |
1935 | return xstrdup(str); | |
1936 | } | |
1937 | ||
1938 | static bool packet_fill_column(struct proc *proc __attribute__((__unused__)), | |
1939 | struct sock_xinfo *sock_xinfo, | |
1940 | struct sock *sock __attribute__((__unused__)), | |
1941 | struct libscols_line *ln __attribute__((__unused__)), | |
1942 | int column_id, | |
1943 | size_t column_index __attribute__((__unused__)), | |
1944 | char **str) | |
1945 | { | |
1946 | struct packet_xinfo *pkt = (struct packet_xinfo *)sock_xinfo; | |
1947 | ||
1948 | switch (column_id) { | |
1949 | case COL_PACKET_IFACE: { | |
1950 | const char *iface; | |
1951 | iface = get_iface_name(sock_xinfo->netns_inode, | |
1952 | pkt->iface); | |
1953 | if (iface) { | |
1954 | *str = xstrdup(iface); | |
1955 | return true; | |
1956 | } | |
1957 | break; | |
1958 | } | |
1959 | case COL_PACKET_PROTOCOL: { | |
1960 | const char *proto; | |
1961 | proto = packet_decode_protocol(pkt->protocol); | |
1962 | if (proto) { | |
1963 | *str = xstrdup(proto); | |
1964 | return true; | |
1965 | } | |
1966 | break; | |
1967 | } | |
1968 | default: | |
1969 | break; | |
1970 | } | |
1971 | return false; | |
1972 | } | |
1973 | ||
1974 | static const struct sock_xinfo_class packet_xinfo_class = { | |
1975 | .get_name = packet_get_name, | |
1976 | .get_type = packet_get_type, | |
1977 | .get_state = NULL, | |
1978 | .get_listening = NULL, | |
1979 | .fill_column = packet_fill_column, | |
1980 | .free = NULL, | |
1981 | }; | |
1982 | ||
1983 | static void load_xinfo_from_proc_packet(ino_t netns_inode) | |
1984 | { | |
1985 | char line[BUFSIZ]; | |
1986 | FILE *packet_fp; | |
1987 | ||
1988 | packet_fp = fopen("/proc/net/packet", "r"); | |
1989 | if (!packet_fp) | |
1990 | return; | |
1991 | ||
1992 | if (fgets(line, sizeof(line), packet_fp) == NULL) | |
1993 | goto out; | |
1994 | if (!(line[0] == 's' && line[1] == 'k')) | |
1995 | /* Unexpected line */ | |
1996 | goto out; | |
1997 | ||
1998 | while (fgets(line, sizeof(line), packet_fp)) { | |
1999 | uint16_t type; | |
2000 | uint16_t protocol; | |
2001 | unsigned int iface; | |
2002 | unsigned long inode; | |
2003 | struct packet_xinfo *pkt; | |
2004 | ||
2005 | if (sscanf(line, "%*x %*d %" SCNu16 " %" SCNu16 " %u %*d %*d %*d %lu", | |
2006 | &type, &protocol, &iface, &inode) < 4) | |
2007 | continue; | |
2008 | ||
2009 | pkt = xcalloc(1, sizeof(*pkt)); | |
2010 | pkt->sock.class = &packet_xinfo_class; | |
2011 | pkt->sock.inode = (ino_t)inode; | |
2012 | pkt->sock.netns_inode = netns_inode; | |
2013 | ||
2014 | pkt->type = type; | |
2015 | pkt->protocol = protocol; | |
2016 | pkt->iface = iface; | |
2017 | ||
2018 | add_sock_info(&pkt->sock); | |
2019 | } | |
2020 | ||
2021 | out: | |
2022 | fclose(packet_fp); | |
2023 | } |