Commit | Line | Data |
---|---|---|
d7e09d03 PT |
1 | /* |
2 | * GPL HEADER START | |
3 | * | |
4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 only, | |
8 | * as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License version 2 for more details (a copy is included | |
14 | * in the LICENSE file that accompanied this code). | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * version 2 along with this program; If not, see | |
6a5b99a4 | 18 | * http://www.gnu.org/licenses/gpl-2.0.html |
d7e09d03 | 19 | * |
d7e09d03 PT |
20 | * GPL HEADER END |
21 | */ | |
22 | /* | |
23 | * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. | |
24 | * Use is subject to license terms. | |
25 | * | |
1dc563a6 | 26 | * Copyright (c) 2012, 2015, Intel Corporation. |
d7e09d03 PT |
27 | */ |
28 | /* | |
29 | * This file is part of Lustre, http://www.lustre.org/ | |
30 | * Lustre is a trademark of Sun Microsystems, Inc. | |
31 | */ | |
32 | ||
33 | #define DEBUG_SUBSYSTEM S_LNET | |
9fdaf8c0 | 34 | #include "../../include/linux/lnet/lib-lnet.h" |
d7e09d03 | 35 | |
ddbc66a5 | 36 | struct lnet_text_buf { /* tmp struct for parsing routes */ |
7e7ab095 MS |
37 | struct list_head ltb_list; /* stash on lists */ |
38 | int ltb_size; /* allocated size */ | |
39 | char ltb_text[0]; /* text buffer */ | |
e416a893 | 40 | }; |
d7e09d03 | 41 | |
ad0a75b4 | 42 | static int lnet_tbnob; /* track text buf allocation */ |
51078e25 JS |
43 | #define LNET_MAX_TEXTBUF_NOB (64 << 10) /* bound allocation */ |
44 | #define LNET_SINGLE_TEXTBUF_NOB (4 << 10) | |
d7e09d03 | 45 | |
714340db | 46 | static void |
d7e09d03 PT |
47 | lnet_syntax(char *name, char *str, int offset, int width) |
48 | { | |
49 | static char dots[LNET_SINGLE_TEXTBUF_NOB]; | |
50 | static char dashes[LNET_SINGLE_TEXTBUF_NOB]; | |
51 | ||
52 | memset(dots, '.', sizeof(dots)); | |
51078e25 | 53 | dots[sizeof(dots) - 1] = 0; |
d7e09d03 | 54 | memset(dashes, '-', sizeof(dashes)); |
51078e25 | 55 | dashes[sizeof(dashes) - 1] = 0; |
d7e09d03 PT |
56 | |
57 | LCONSOLE_ERROR_MSG(0x10f, "Error parsing '%s=\"%s\"'\n", name, str); | |
58 | LCONSOLE_ERROR_MSG(0x110, "here...........%.*s..%.*s|%.*s|\n", | |
59 | (int)strlen(name), dots, offset, dots, | |
60 | (width < 1) ? 0 : width - 1, dashes); | |
61 | } | |
62 | ||
714340db | 63 | static int |
24edbe4f | 64 | lnet_issep(char c) |
d7e09d03 PT |
65 | { |
66 | switch (c) { | |
67 | case '\n': | |
68 | case '\r': | |
69 | case ';': | |
70 | return 1; | |
71 | default: | |
72 | return 0; | |
73 | } | |
74 | } | |
75 | ||
6c9e5a55 | 76 | int |
d7e09d03 PT |
77 | lnet_net_unique(__u32 net, struct list_head *nilist) |
78 | { | |
7e7ab095 MS |
79 | struct list_head *tmp; |
80 | lnet_ni_t *ni; | |
d7e09d03 | 81 | |
24edbe4f | 82 | list_for_each(tmp, nilist) { |
d7e09d03 PT |
83 | ni = list_entry(tmp, lnet_ni_t, ni_list); |
84 | ||
85 | if (LNET_NIDNET(ni->ni_nid) == net) | |
86 | return 0; | |
87 | } | |
88 | ||
89 | return 1; | |
90 | } | |
91 | ||
92 | void | |
93 | lnet_ni_free(struct lnet_ni *ni) | |
94 | { | |
21602c7d AS |
95 | int i; |
96 | ||
06ace26e | 97 | if (ni->ni_refs) |
d7e09d03 PT |
98 | cfs_percpt_free(ni->ni_refs); |
99 | ||
06ace26e | 100 | if (ni->ni_tx_queues) |
d7e09d03 PT |
101 | cfs_percpt_free(ni->ni_tx_queues); |
102 | ||
06ace26e | 103 | if (ni->ni_cpts) |
d7e09d03 PT |
104 | cfs_expr_list_values_free(ni->ni_cpts, ni->ni_ncpts); |
105 | ||
243a941c AS |
106 | if (ni->ni_lnd_tunables) |
107 | LIBCFS_FREE(ni->ni_lnd_tunables, sizeof(*ni->ni_lnd_tunables)); | |
108 | ||
21602c7d AS |
109 | for (i = 0; i < LNET_MAX_INTERFACES && ni->ni_interfaces[i]; i++) { |
110 | LIBCFS_FREE(ni->ni_interfaces[i], | |
111 | strlen(ni->ni_interfaces[i]) + 1); | |
112 | } | |
d7e09d03 PT |
113 | LIBCFS_FREE(ni, sizeof(*ni)); |
114 | } | |
115 | ||
9c26b89d | 116 | lnet_ni_t * |
d7e09d03 PT |
117 | lnet_ni_alloc(__u32 net, struct cfs_expr_list *el, struct list_head *nilist) |
118 | { | |
7e7ab095 MS |
119 | struct lnet_tx_queue *tq; |
120 | struct lnet_ni *ni; | |
121 | int rc; | |
122 | int i; | |
d7e09d03 PT |
123 | |
124 | if (!lnet_net_unique(net, nilist)) { | |
125 | LCONSOLE_ERROR_MSG(0x111, "Duplicate network specified: %s\n", | |
126 | libcfs_net2str(net)); | |
127 | return NULL; | |
128 | } | |
129 | ||
130 | LIBCFS_ALLOC(ni, sizeof(*ni)); | |
06ace26e | 131 | if (!ni) { |
d7e09d03 PT |
132 | CERROR("Out of memory creating network %s\n", |
133 | libcfs_net2str(net)); | |
134 | return NULL; | |
135 | } | |
136 | ||
137 | spin_lock_init(&ni->ni_lock); | |
138 | INIT_LIST_HEAD(&ni->ni_cptlist); | |
139 | ni->ni_refs = cfs_percpt_alloc(lnet_cpt_table(), | |
140 | sizeof(*ni->ni_refs[0])); | |
06ace26e | 141 | if (!ni->ni_refs) |
d7e09d03 PT |
142 | goto failed; |
143 | ||
144 | ni->ni_tx_queues = cfs_percpt_alloc(lnet_cpt_table(), | |
145 | sizeof(*ni->ni_tx_queues[0])); | |
06ace26e | 146 | if (!ni->ni_tx_queues) |
d7e09d03 PT |
147 | goto failed; |
148 | ||
149 | cfs_percpt_for_each(tq, i, ni->ni_tx_queues) | |
150 | INIT_LIST_HEAD(&tq->tq_delayed); | |
151 | ||
06ace26e | 152 | if (!el) { |
d7e09d03 PT |
153 | ni->ni_cpts = NULL; |
154 | ni->ni_ncpts = LNET_CPT_NUMBER; | |
155 | } else { | |
156 | rc = cfs_expr_list_values(el, LNET_CPT_NUMBER, &ni->ni_cpts); | |
157 | if (rc <= 0) { | |
158 | CERROR("Failed to set CPTs for NI %s: %d\n", | |
159 | libcfs_net2str(net), rc); | |
160 | goto failed; | |
161 | } | |
162 | ||
163 | LASSERT(rc <= LNET_CPT_NUMBER); | |
164 | if (rc == LNET_CPT_NUMBER) { | |
165 | LIBCFS_FREE(ni->ni_cpts, rc * sizeof(ni->ni_cpts[0])); | |
166 | ni->ni_cpts = NULL; | |
167 | } | |
168 | ||
169 | ni->ni_ncpts = rc; | |
170 | } | |
171 | ||
172 | /* LND will fill in the address part of the NID */ | |
173 | ni->ni_nid = LNET_MKNID(net, 0); | |
ec0067d1 | 174 | ni->ni_last_alive = ktime_get_real_seconds(); |
d7e09d03 PT |
175 | list_add_tail(&ni->ni_list, nilist); |
176 | return ni; | |
177 | failed: | |
178 | lnet_ni_free(ni); | |
179 | return NULL; | |
180 | } | |
181 | ||
182 | int | |
183 | lnet_parse_networks(struct list_head *nilist, char *networks) | |
184 | { | |
185 | struct cfs_expr_list *el = NULL; | |
8766cd12 | 186 | int tokensize; |
7e7ab095 MS |
187 | char *tokens; |
188 | char *str; | |
189 | char *tmp; | |
190 | struct lnet_ni *ni; | |
191 | __u32 net; | |
192 | int nnets = 0; | |
9c26b89d | 193 | struct list_head *temp_node; |
d7e09d03 | 194 | |
8766cd12 AS |
195 | if (!networks) { |
196 | CERROR("networks string is undefined\n"); | |
197 | return -EINVAL; | |
198 | } | |
199 | ||
d7e09d03 PT |
200 | if (strlen(networks) > LNET_SINGLE_TEXTBUF_NOB) { |
201 | /* _WAY_ conservative */ | |
e46b3a0b RK |
202 | LCONSOLE_ERROR_MSG(0x112, |
203 | "Can't parse networks: string too long\n"); | |
d7e09d03 PT |
204 | return -EINVAL; |
205 | } | |
206 | ||
8766cd12 AS |
207 | tokensize = strlen(networks) + 1; |
208 | ||
d7e09d03 | 209 | LIBCFS_ALLOC(tokens, tokensize); |
06ace26e | 210 | if (!tokens) { |
d7e09d03 PT |
211 | CERROR("Can't allocate net tokens\n"); |
212 | return -ENOMEM; | |
213 | } | |
214 | ||
24edbe4f | 215 | memcpy(tokens, networks, tokensize); |
d3d3d37a JS |
216 | tmp = tokens; |
217 | str = tokens; | |
d7e09d03 | 218 | |
5fd88337 | 219 | while (str && *str) { |
7e7ab095 MS |
220 | char *comma = strchr(str, ','); |
221 | char *bracket = strchr(str, '('); | |
222 | char *square = strchr(str, '['); | |
223 | char *iface; | |
224 | int niface; | |
225 | int rc; | |
d7e09d03 | 226 | |
587cb022 SS |
227 | /* |
228 | * NB we don't check interface conflicts here; it's the LNDs | |
229 | * responsibility (if it cares at all) | |
230 | */ | |
06ace26e | 231 | if (square && (!comma || square < comma)) { |
587cb022 SS |
232 | /* |
233 | * i.e: o2ib0(ib0)[1,2], number between square | |
234 | * brackets are CPTs this NI needs to be bond | |
235 | */ | |
06ace26e | 236 | if (bracket && bracket > square) { |
d7e09d03 PT |
237 | tmp = square; |
238 | goto failed_syntax; | |
239 | } | |
240 | ||
241 | tmp = strchr(square, ']'); | |
06ace26e | 242 | if (!tmp) { |
d7e09d03 PT |
243 | tmp = square; |
244 | goto failed_syntax; | |
245 | } | |
246 | ||
247 | rc = cfs_expr_list_parse(square, tmp - square + 1, | |
248 | 0, LNET_CPT_NUMBER - 1, &el); | |
5fd88337 | 249 | if (rc) { |
d7e09d03 PT |
250 | tmp = square; |
251 | goto failed_syntax; | |
252 | } | |
253 | ||
254 | while (square <= tmp) | |
255 | *square++ = ' '; | |
256 | } | |
257 | ||
06ace26e | 258 | if (!bracket || (comma && comma < bracket)) { |
d7e09d03 PT |
259 | /* no interface list specified */ |
260 | ||
06ace26e | 261 | if (comma) |
d7e09d03 PT |
262 | *comma++ = 0; |
263 | net = libcfs_str2net(cfs_trimwhite(str)); | |
264 | ||
265 | if (net == LNET_NIDNET(LNET_NID_ANY)) { | |
e46b3a0b RK |
266 | LCONSOLE_ERROR_MSG(0x113, |
267 | "Unrecognised network type\n"); | |
d7e09d03 PT |
268 | tmp = str; |
269 | goto failed_syntax; | |
270 | } | |
271 | ||
272 | if (LNET_NETTYP(net) != LOLND && /* LO is implicit */ | |
06ace26e | 273 | !lnet_ni_alloc(net, el, nilist)) |
d7e09d03 PT |
274 | goto failed; |
275 | ||
06ace26e | 276 | if (el) { |
d7e09d03 PT |
277 | cfs_expr_list_free(el); |
278 | el = NULL; | |
279 | } | |
280 | ||
281 | str = comma; | |
282 | continue; | |
283 | } | |
284 | ||
285 | *bracket = 0; | |
286 | net = libcfs_str2net(cfs_trimwhite(str)); | |
287 | if (net == LNET_NIDNET(LNET_NID_ANY)) { | |
288 | tmp = str; | |
289 | goto failed_syntax; | |
290 | } | |
291 | ||
d7e09d03 | 292 | ni = lnet_ni_alloc(net, el, nilist); |
06ace26e | 293 | if (!ni) |
d7e09d03 PT |
294 | goto failed; |
295 | ||
06ace26e | 296 | if (el) { |
d7e09d03 PT |
297 | cfs_expr_list_free(el); |
298 | el = NULL; | |
299 | } | |
300 | ||
301 | niface = 0; | |
302 | iface = bracket + 1; | |
303 | ||
304 | bracket = strchr(iface, ')'); | |
06ace26e | 305 | if (!bracket) { |
d7e09d03 PT |
306 | tmp = iface; |
307 | goto failed_syntax; | |
308 | } | |
309 | ||
310 | *bracket = 0; | |
311 | do { | |
312 | comma = strchr(iface, ','); | |
06ace26e | 313 | if (comma) |
d7e09d03 PT |
314 | *comma++ = 0; |
315 | ||
316 | iface = cfs_trimwhite(iface); | |
5fd88337 | 317 | if (!*iface) { |
d7e09d03 PT |
318 | tmp = iface; |
319 | goto failed_syntax; | |
320 | } | |
321 | ||
322 | if (niface == LNET_MAX_INTERFACES) { | |
e46b3a0b RK |
323 | LCONSOLE_ERROR_MSG(0x115, |
324 | "Too many interfaces for net %s\n", | |
d7e09d03 PT |
325 | libcfs_net2str(net)); |
326 | goto failed; | |
327 | } | |
328 | ||
21602c7d AS |
329 | /* |
330 | * Allocate a separate piece of memory and copy | |
331 | * into it the string, so we don't have | |
332 | * a depencency on the tokens string. This way we | |
333 | * can free the tokens at the end of the function. | |
334 | * The newly allocated ni_interfaces[] can be | |
335 | * freed when freeing the NI | |
336 | */ | |
337 | LIBCFS_ALLOC(ni->ni_interfaces[niface], | |
338 | strlen(iface) + 1); | |
339 | if (!ni->ni_interfaces[niface]) { | |
340 | CERROR("Can't allocate net interface name\n"); | |
341 | goto failed; | |
342 | } | |
343 | strncpy(ni->ni_interfaces[niface], iface, | |
344 | strlen(iface)); | |
345 | niface++; | |
d7e09d03 | 346 | iface = comma; |
06ace26e | 347 | } while (iface); |
d7e09d03 PT |
348 | |
349 | str = bracket + 1; | |
350 | comma = strchr(bracket + 1, ','); | |
06ace26e | 351 | if (comma) { |
d7e09d03 PT |
352 | *comma = 0; |
353 | str = cfs_trimwhite(str); | |
5fd88337 | 354 | if (*str) { |
d7e09d03 PT |
355 | tmp = str; |
356 | goto failed_syntax; | |
357 | } | |
358 | str = comma + 1; | |
359 | continue; | |
360 | } | |
361 | ||
362 | str = cfs_trimwhite(str); | |
5fd88337 | 363 | if (*str) { |
d7e09d03 PT |
364 | tmp = str; |
365 | goto failed_syntax; | |
366 | } | |
367 | } | |
368 | ||
9c26b89d AS |
369 | list_for_each(temp_node, nilist) |
370 | nnets++; | |
21602c7d AS |
371 | |
372 | LIBCFS_FREE(tokens, tokensize); | |
9c26b89d | 373 | return nnets; |
d7e09d03 PT |
374 | |
375 | failed_syntax: | |
376 | lnet_syntax("networks", networks, (int)(tmp - tokens), strlen(tmp)); | |
377 | failed: | |
378 | while (!list_empty(nilist)) { | |
379 | ni = list_entry(nilist->next, lnet_ni_t, ni_list); | |
380 | ||
381 | list_del(&ni->ni_list); | |
382 | lnet_ni_free(ni); | |
383 | } | |
384 | ||
06ace26e | 385 | if (el) |
d7e09d03 PT |
386 | cfs_expr_list_free(el); |
387 | ||
388 | LIBCFS_FREE(tokens, tokensize); | |
d7e09d03 PT |
389 | |
390 | return -EINVAL; | |
391 | } | |
392 | ||
ddbc66a5 | 393 | static struct lnet_text_buf * |
24edbe4f | 394 | lnet_new_text_buf(int str_len) |
d7e09d03 | 395 | { |
ddbc66a5 | 396 | struct lnet_text_buf *ltb; |
7e7ab095 | 397 | int nob; |
d7e09d03 PT |
398 | |
399 | /* NB allocate space for the terminating 0 */ | |
ddbc66a5 | 400 | nob = offsetof(struct lnet_text_buf, ltb_text[str_len + 1]); |
d7e09d03 PT |
401 | if (nob > LNET_SINGLE_TEXTBUF_NOB) { |
402 | /* _way_ conservative for "route net gateway..." */ | |
403 | CERROR("text buffer too big\n"); | |
404 | return NULL; | |
405 | } | |
406 | ||
407 | if (lnet_tbnob + nob > LNET_MAX_TEXTBUF_NOB) { | |
408 | CERROR("Too many text buffers\n"); | |
409 | return NULL; | |
410 | } | |
411 | ||
412 | LIBCFS_ALLOC(ltb, nob); | |
06ace26e | 413 | if (!ltb) |
d7e09d03 PT |
414 | return NULL; |
415 | ||
416 | ltb->ltb_size = nob; | |
417 | ltb->ltb_text[0] = 0; | |
418 | lnet_tbnob += nob; | |
419 | return ltb; | |
420 | } | |
421 | ||
714340db | 422 | static void |
ddbc66a5 | 423 | lnet_free_text_buf(struct lnet_text_buf *ltb) |
d7e09d03 PT |
424 | { |
425 | lnet_tbnob -= ltb->ltb_size; | |
426 | LIBCFS_FREE(ltb, ltb->ltb_size); | |
427 | } | |
428 | ||
714340db | 429 | static void |
d7e09d03 PT |
430 | lnet_free_text_bufs(struct list_head *tbs) |
431 | { | |
ddbc66a5 | 432 | struct lnet_text_buf *ltb; |
d7e09d03 PT |
433 | |
434 | while (!list_empty(tbs)) { | |
ddbc66a5 | 435 | ltb = list_entry(tbs->next, struct lnet_text_buf, ltb_list); |
d7e09d03 PT |
436 | |
437 | list_del(<b->ltb_list); | |
438 | lnet_free_text_buf(ltb); | |
439 | } | |
440 | } | |
441 | ||
714340db | 442 | static int |
24edbe4f | 443 | lnet_str2tbs_sep(struct list_head *tbs, char *str) |
d7e09d03 | 444 | { |
7e7ab095 MS |
445 | struct list_head pending; |
446 | char *sep; | |
447 | int nob; | |
448 | int i; | |
ddbc66a5 | 449 | struct lnet_text_buf *ltb; |
d7e09d03 PT |
450 | |
451 | INIT_LIST_HEAD(&pending); | |
452 | ||
453 | /* Split 'str' into separate commands */ | |
454 | for (;;) { | |
455 | /* skip leading whitespace */ | |
e525a681 | 456 | while (isspace(*str)) |
d7e09d03 PT |
457 | str++; |
458 | ||
459 | /* scan for separator or comment */ | |
5fd88337 | 460 | for (sep = str; *sep; sep++) |
d7e09d03 PT |
461 | if (lnet_issep(*sep) || *sep == '#') |
462 | break; | |
463 | ||
464 | nob = (int)(sep - str); | |
465 | if (nob > 0) { | |
466 | ltb = lnet_new_text_buf(nob); | |
06ace26e | 467 | if (!ltb) { |
d7e09d03 | 468 | lnet_free_text_bufs(&pending); |
58cb2ad3 | 469 | return -ENOMEM; |
d7e09d03 PT |
470 | } |
471 | ||
472 | for (i = 0; i < nob; i++) | |
e525a681 | 473 | if (isspace(str[i])) |
d7e09d03 PT |
474 | ltb->ltb_text[i] = ' '; |
475 | else | |
476 | ltb->ltb_text[i] = str[i]; | |
477 | ||
478 | ltb->ltb_text[nob] = 0; | |
479 | ||
480 | list_add_tail(<b->ltb_list, &pending); | |
481 | } | |
482 | ||
483 | if (*sep == '#') { | |
484 | /* scan for separator */ | |
485 | do { | |
486 | sep++; | |
5fd88337 | 487 | } while (*sep && !lnet_issep(*sep)); |
d7e09d03 PT |
488 | } |
489 | ||
5fd88337 | 490 | if (!*sep) |
d7e09d03 PT |
491 | break; |
492 | ||
493 | str = sep + 1; | |
494 | } | |
495 | ||
496 | list_splice(&pending, tbs->prev); | |
497 | return 0; | |
498 | } | |
499 | ||
714340db | 500 | static int |
24edbe4f | 501 | lnet_expand1tb(struct list_head *list, |
d7e09d03 PT |
502 | char *str, char *sep1, char *sep2, |
503 | char *item, int itemlen) | |
504 | { | |
7e7ab095 MS |
505 | int len1 = (int)(sep1 - str); |
506 | int len2 = strlen(sep2 + 1); | |
ddbc66a5 | 507 | struct lnet_text_buf *ltb; |
d7e09d03 | 508 | |
24edbe4f RK |
509 | LASSERT(*sep1 == '['); |
510 | LASSERT(*sep2 == ']'); | |
d7e09d03 PT |
511 | |
512 | ltb = lnet_new_text_buf(len1 + itemlen + len2); | |
06ace26e | 513 | if (!ltb) |
d7e09d03 PT |
514 | return -ENOMEM; |
515 | ||
516 | memcpy(ltb->ltb_text, str, len1); | |
517 | memcpy(<b->ltb_text[len1], item, itemlen); | |
51078e25 | 518 | memcpy(<b->ltb_text[len1 + itemlen], sep2 + 1, len2); |
d7e09d03 PT |
519 | ltb->ltb_text[len1 + itemlen + len2] = 0; |
520 | ||
521 | list_add_tail(<b->ltb_list, list); | |
522 | return 0; | |
523 | } | |
524 | ||
714340db | 525 | static int |
24edbe4f | 526 | lnet_str2tbs_expand(struct list_head *tbs, char *str) |
d7e09d03 | 527 | { |
7e7ab095 MS |
528 | char num[16]; |
529 | struct list_head pending; | |
530 | char *sep; | |
531 | char *sep2; | |
532 | char *parsed; | |
533 | char *enditem; | |
534 | int lo; | |
535 | int hi; | |
536 | int stride; | |
537 | int i; | |
538 | int nob; | |
539 | int scanned; | |
d7e09d03 PT |
540 | |
541 | INIT_LIST_HEAD(&pending); | |
542 | ||
543 | sep = strchr(str, '['); | |
06ace26e | 544 | if (!sep) /* nothing to expand */ |
d7e09d03 PT |
545 | return 0; |
546 | ||
547 | sep2 = strchr(sep, ']'); | |
06ace26e | 548 | if (!sep2) |
d7e09d03 PT |
549 | goto failed; |
550 | ||
551 | for (parsed = sep; parsed < sep2; parsed = enditem) { | |
d7e09d03 PT |
552 | enditem = ++parsed; |
553 | while (enditem < sep2 && *enditem != ',') | |
554 | enditem++; | |
555 | ||
556 | if (enditem == parsed) /* no empty items */ | |
557 | goto failed; | |
558 | ||
3a338e20 RB |
559 | if (sscanf(parsed, "%d-%d/%d%n", &lo, &hi, |
560 | &stride, &scanned) < 3) { | |
d7e09d03 | 561 | if (sscanf(parsed, "%d-%d%n", &lo, &hi, &scanned) < 2) { |
d7e09d03 | 562 | /* simple string enumeration */ |
c314c319 JS |
563 | if (lnet_expand1tb(&pending, str, sep, sep2, |
564 | parsed, | |
5fd88337 | 565 | (int)(enditem - parsed))) { |
d7e09d03 | 566 | goto failed; |
3a338e20 | 567 | } |
d7e09d03 PT |
568 | continue; |
569 | } | |
570 | ||
571 | stride = 1; | |
572 | } | |
573 | ||
574 | /* range expansion */ | |
575 | ||
576 | if (enditem != parsed + scanned) /* no trailing junk */ | |
577 | goto failed; | |
578 | ||
579 | if (hi < 0 || lo < 0 || stride < 0 || hi < lo || | |
5fd88337 | 580 | (hi - lo) % stride) |
d7e09d03 PT |
581 | goto failed; |
582 | ||
583 | for (i = lo; i <= hi; i += stride) { | |
d7e09d03 PT |
584 | snprintf(num, sizeof(num), "%d", i); |
585 | nob = strlen(num); | |
586 | if (nob + 1 == sizeof(num)) | |
587 | goto failed; | |
588 | ||
589 | if (lnet_expand1tb(&pending, str, sep, sep2, | |
5fd88337 | 590 | num, nob)) |
d7e09d03 PT |
591 | goto failed; |
592 | } | |
593 | } | |
594 | ||
595 | list_splice(&pending, tbs->prev); | |
596 | return 1; | |
597 | ||
598 | failed: | |
599 | lnet_free_text_bufs(&pending); | |
58cb2ad3 | 600 | return -EINVAL; |
d7e09d03 PT |
601 | } |
602 | ||
714340db | 603 | static int |
24edbe4f | 604 | lnet_parse_hops(char *str, unsigned int *hops) |
d7e09d03 | 605 | { |
7e7ab095 MS |
606 | int len = strlen(str); |
607 | int nob = len; | |
d7e09d03 PT |
608 | |
609 | return (sscanf(str, "%u%n", hops, &nob) >= 1 && | |
610 | nob == len && | |
611 | *hops > 0 && *hops < 256); | |
612 | } | |
613 | ||
e75fb87f DO |
614 | #define LNET_PRIORITY_SEPARATOR (':') |
615 | ||
714340db | 616 | static int |
e75fb87f DO |
617 | lnet_parse_priority(char *str, unsigned int *priority, char **token) |
618 | { | |
7e7ab095 | 619 | int nob; |
e75fb87f | 620 | char *sep; |
7e7ab095 | 621 | int len; |
e75fb87f DO |
622 | |
623 | sep = strchr(str, LNET_PRIORITY_SEPARATOR); | |
06ace26e | 624 | if (!sep) { |
e75fb87f DO |
625 | *priority = 0; |
626 | return 0; | |
627 | } | |
628 | len = strlen(sep + 1); | |
629 | ||
51078e25 | 630 | if ((sscanf((sep + 1), "%u%n", priority, &nob) < 1) || (len != nob)) { |
587cb022 SS |
631 | /* |
632 | * Update the caller's token pointer so it treats the found | |
633 | * priority as the token to report in the error message. | |
634 | */ | |
e75fb87f | 635 | *token += sep - str + 1; |
58cb2ad3 | 636 | return -EINVAL; |
e75fb87f DO |
637 | } |
638 | ||
639 | CDEBUG(D_NET, "gateway %s, priority %d, nob %d\n", str, *priority, nob); | |
640 | ||
641 | /* | |
642 | * Change priority separator to \0 to be able to parse NID | |
643 | */ | |
644 | *sep = '\0'; | |
645 | return 0; | |
646 | } | |
d7e09d03 | 647 | |
714340db | 648 | static int |
24edbe4f | 649 | lnet_parse_route(char *str, int *im_a_router) |
d7e09d03 PT |
650 | { |
651 | /* static scratch buffer OK (single threaded) */ | |
7e7ab095 MS |
652 | static char cmd[LNET_SINGLE_TEXTBUF_NOB]; |
653 | ||
654 | struct list_head nets; | |
655 | struct list_head gateways; | |
656 | struct list_head *tmp1; | |
657 | struct list_head *tmp2; | |
658 | __u32 net; | |
659 | lnet_nid_t nid; | |
ddbc66a5 | 660 | struct lnet_text_buf *ltb; |
7e7ab095 MS |
661 | int rc; |
662 | char *sep; | |
663 | char *token = str; | |
664 | int ntokens = 0; | |
665 | int myrc = -1; | |
b9bbb61c | 666 | __u32 hops; |
7e7ab095 MS |
667 | int got_hops = 0; |
668 | unsigned int priority = 0; | |
d7e09d03 PT |
669 | |
670 | INIT_LIST_HEAD(&gateways); | |
671 | INIT_LIST_HEAD(&nets); | |
672 | ||
673 | /* save a copy of the string for error messages */ | |
9563fe8a DE |
674 | strncpy(cmd, str, sizeof(cmd)); |
675 | cmd[sizeof(cmd) - 1] = '\0'; | |
d7e09d03 PT |
676 | |
677 | sep = str; | |
678 | for (;;) { | |
679 | /* scan for token start */ | |
e525a681 | 680 | while (isspace(*sep)) |
d7e09d03 | 681 | sep++; |
5fd88337 | 682 | if (!*sep) { |
d7e09d03 PT |
683 | if (ntokens < (got_hops ? 3 : 2)) |
684 | goto token_error; | |
685 | break; | |
686 | } | |
687 | ||
688 | ntokens++; | |
689 | token = sep++; | |
690 | ||
691 | /* scan for token end */ | |
5fd88337 | 692 | while (*sep && !isspace(*sep)) |
d7e09d03 | 693 | sep++; |
5fd88337 | 694 | if (*sep) |
d7e09d03 PT |
695 | *sep++ = 0; |
696 | ||
697 | if (ntokens == 1) { | |
698 | tmp2 = &nets; /* expanding nets */ | |
699 | } else if (ntokens == 2 && | |
700 | lnet_parse_hops(token, &hops)) { | |
701 | got_hops = 1; /* got a hop count */ | |
702 | continue; | |
703 | } else { | |
704 | tmp2 = &gateways; /* expanding gateways */ | |
705 | } | |
706 | ||
707 | ltb = lnet_new_text_buf(strlen(token)); | |
06ace26e | 708 | if (!ltb) |
d7e09d03 PT |
709 | goto out; |
710 | ||
711 | strcpy(ltb->ltb_text, token); | |
712 | tmp1 = <b->ltb_list; | |
713 | list_add_tail(tmp1, tmp2); | |
714 | ||
715 | while (tmp1 != tmp2) { | |
ddbc66a5 | 716 | ltb = list_entry(tmp1, struct lnet_text_buf, ltb_list); |
d7e09d03 PT |
717 | |
718 | rc = lnet_str2tbs_expand(tmp1->next, ltb->ltb_text); | |
719 | if (rc < 0) | |
720 | goto token_error; | |
721 | ||
722 | tmp1 = tmp1->next; | |
723 | ||
724 | if (rc > 0) { /* expanded! */ | |
725 | list_del(<b->ltb_list); | |
726 | lnet_free_text_buf(ltb); | |
727 | continue; | |
728 | } | |
729 | ||
730 | if (ntokens == 1) { | |
731 | net = libcfs_str2net(ltb->ltb_text); | |
732 | if (net == LNET_NIDNET(LNET_NID_ANY) || | |
733 | LNET_NETTYP(net) == LOLND) | |
734 | goto token_error; | |
735 | } else { | |
e75fb87f DO |
736 | rc = lnet_parse_priority(ltb->ltb_text, |
737 | &priority, &token); | |
738 | if (rc < 0) | |
739 | goto token_error; | |
740 | ||
d7e09d03 PT |
741 | nid = libcfs_str2nid(ltb->ltb_text); |
742 | if (nid == LNET_NID_ANY || | |
743 | LNET_NETTYP(LNET_NIDNET(nid)) == LOLND) | |
744 | goto token_error; | |
745 | } | |
746 | } | |
747 | } | |
748 | ||
b9bbb61c AS |
749 | /** |
750 | * if there are no hops set then we want to flag this value as | |
751 | * unset since hops is an optional parameter | |
752 | */ | |
d7e09d03 | 753 | if (!got_hops) |
b9bbb61c | 754 | hops = LNET_UNDEFINED_HOPS; |
d7e09d03 | 755 | |
24edbe4f RK |
756 | LASSERT(!list_empty(&nets)); |
757 | LASSERT(!list_empty(&gateways)); | |
d7e09d03 | 758 | |
24edbe4f | 759 | list_for_each(tmp1, &nets) { |
ddbc66a5 | 760 | ltb = list_entry(tmp1, struct lnet_text_buf, ltb_list); |
d7e09d03 | 761 | net = libcfs_str2net(ltb->ltb_text); |
24edbe4f | 762 | LASSERT(net != LNET_NIDNET(LNET_NID_ANY)); |
d7e09d03 | 763 | |
24edbe4f | 764 | list_for_each(tmp2, &gateways) { |
ddbc66a5 | 765 | ltb = list_entry(tmp2, struct lnet_text_buf, ltb_list); |
d7e09d03 | 766 | nid = libcfs_str2nid(ltb->ltb_text); |
24edbe4f | 767 | LASSERT(nid != LNET_NID_ANY); |
d7e09d03 PT |
768 | |
769 | if (lnet_islocalnid(nid)) { | |
770 | *im_a_router = 1; | |
771 | continue; | |
772 | } | |
773 | ||
e75fb87f | 774 | rc = lnet_add_route(net, hops, nid, priority); |
be8240ac | 775 | if (rc && rc != -EEXIST && rc != -EHOSTUNREACH) { |
e46b3a0b | 776 | CERROR("Can't create route to %s via %s\n", |
d7e09d03 PT |
777 | libcfs_net2str(net), |
778 | libcfs_nid2str(nid)); | |
779 | goto out; | |
780 | } | |
781 | } | |
782 | } | |
783 | ||
784 | myrc = 0; | |
785 | goto out; | |
786 | ||
787 | token_error: | |
788 | lnet_syntax("routes", cmd, (int)(token - str), strlen(token)); | |
789 | out: | |
790 | lnet_free_text_bufs(&nets); | |
791 | lnet_free_text_bufs(&gateways); | |
792 | return myrc; | |
793 | } | |
794 | ||
714340db | 795 | static int |
d7e09d03 PT |
796 | lnet_parse_route_tbs(struct list_head *tbs, int *im_a_router) |
797 | { | |
ddbc66a5 | 798 | struct lnet_text_buf *ltb; |
d7e09d03 PT |
799 | |
800 | while (!list_empty(tbs)) { | |
ddbc66a5 | 801 | ltb = list_entry(tbs->next, struct lnet_text_buf, ltb_list); |
d7e09d03 PT |
802 | |
803 | if (lnet_parse_route(ltb->ltb_text, im_a_router) < 0) { | |
804 | lnet_free_text_bufs(tbs); | |
805 | return -EINVAL; | |
806 | } | |
807 | ||
808 | list_del(<b->ltb_list); | |
809 | lnet_free_text_buf(ltb); | |
810 | } | |
811 | ||
812 | return 0; | |
813 | } | |
814 | ||
815 | int | |
24edbe4f | 816 | lnet_parse_routes(char *routes, int *im_a_router) |
d7e09d03 | 817 | { |
7e7ab095 MS |
818 | struct list_head tbs; |
819 | int rc = 0; | |
d7e09d03 PT |
820 | |
821 | *im_a_router = 0; | |
822 | ||
823 | INIT_LIST_HEAD(&tbs); | |
824 | ||
825 | if (lnet_str2tbs_sep(&tbs, routes) < 0) { | |
826 | CERROR("Error parsing routes\n"); | |
827 | rc = -EINVAL; | |
828 | } else { | |
829 | rc = lnet_parse_route_tbs(&tbs, im_a_router); | |
830 | } | |
831 | ||
5fd88337 | 832 | LASSERT(!lnet_tbnob); |
d7e09d03 PT |
833 | return rc; |
834 | } | |
835 | ||
714340db | 836 | static int |
d7e09d03 PT |
837 | lnet_match_network_token(char *token, int len, __u32 *ipaddrs, int nip) |
838 | { | |
24edbe4f | 839 | LIST_HEAD(list); |
7e7ab095 MS |
840 | int rc; |
841 | int i; | |
d7e09d03 PT |
842 | |
843 | rc = cfs_ip_addr_parse(token, len, &list); | |
5fd88337 | 844 | if (rc) |
d7e09d03 PT |
845 | return rc; |
846 | ||
847 | for (rc = i = 0; !rc && i < nip; i++) | |
848 | rc = cfs_ip_addr_match(ipaddrs[i], &list); | |
849 | ||
a620ec63 | 850 | cfs_expr_list_free_list(&list); |
d7e09d03 PT |
851 | |
852 | return rc; | |
853 | } | |
854 | ||
714340db | 855 | static int |
d7e09d03 PT |
856 | lnet_match_network_tokens(char *net_entry, __u32 *ipaddrs, int nip) |
857 | { | |
858 | static char tokens[LNET_SINGLE_TEXTBUF_NOB]; | |
859 | ||
7e7ab095 MS |
860 | int matched = 0; |
861 | int ntokens = 0; | |
862 | int len; | |
d7e09d03 PT |
863 | char *net = NULL; |
864 | char *sep; | |
865 | char *token; | |
7e7ab095 | 866 | int rc; |
d7e09d03 | 867 | |
24edbe4f | 868 | LASSERT(strlen(net_entry) < sizeof(tokens)); |
d7e09d03 PT |
869 | |
870 | /* work on a copy of the string */ | |
871 | strcpy(tokens, net_entry); | |
872 | sep = tokens; | |
873 | for (;;) { | |
874 | /* scan for token start */ | |
e525a681 | 875 | while (isspace(*sep)) |
d7e09d03 | 876 | sep++; |
5fd88337 | 877 | if (!*sep) |
d7e09d03 PT |
878 | break; |
879 | ||
880 | token = sep++; | |
881 | ||
882 | /* scan for token end */ | |
5fd88337 | 883 | while (*sep && !isspace(*sep)) |
d7e09d03 | 884 | sep++; |
5fd88337 | 885 | if (*sep) |
d7e09d03 PT |
886 | *sep++ = 0; |
887 | ||
5fd88337 | 888 | if (!ntokens++) { |
d7e09d03 PT |
889 | net = token; |
890 | continue; | |
891 | } | |
892 | ||
893 | len = strlen(token); | |
894 | ||
895 | rc = lnet_match_network_token(token, len, ipaddrs, nip); | |
896 | if (rc < 0) { | |
897 | lnet_syntax("ip2nets", net_entry, | |
898 | (int)(token - tokens), len); | |
899 | return rc; | |
900 | } | |
901 | ||
5fd88337 JS |
902 | if (rc) |
903 | matched |= 1; | |
d7e09d03 PT |
904 | } |
905 | ||
906 | if (!matched) | |
907 | return 0; | |
908 | ||
909 | strcpy(net_entry, net); /* replace with matched net */ | |
910 | return 1; | |
911 | } | |
912 | ||
714340db | 913 | static __u32 |
d7e09d03 PT |
914 | lnet_netspec2net(char *netspec) |
915 | { | |
7e7ab095 MS |
916 | char *bracket = strchr(netspec, '('); |
917 | __u32 net; | |
d7e09d03 | 918 | |
06ace26e | 919 | if (bracket) |
d7e09d03 PT |
920 | *bracket = 0; |
921 | ||
922 | net = libcfs_str2net(netspec); | |
923 | ||
06ace26e | 924 | if (bracket) |
d7e09d03 PT |
925 | *bracket = '('; |
926 | ||
927 | return net; | |
928 | } | |
929 | ||
714340db | 930 | static int |
d7e09d03 PT |
931 | lnet_splitnets(char *source, struct list_head *nets) |
932 | { | |
7e7ab095 MS |
933 | int offset = 0; |
934 | int offset2; | |
935 | int len; | |
ddbc66a5 JS |
936 | struct lnet_text_buf *tb; |
937 | struct lnet_text_buf *tb2; | |
7e7ab095 MS |
938 | struct list_head *t; |
939 | char *sep; | |
940 | char *bracket; | |
941 | __u32 net; | |
d7e09d03 | 942 | |
24edbe4f RK |
943 | LASSERT(!list_empty(nets)); |
944 | LASSERT(nets->next == nets->prev); /* single entry */ | |
d7e09d03 | 945 | |
ddbc66a5 | 946 | tb = list_entry(nets->next, struct lnet_text_buf, ltb_list); |
d7e09d03 PT |
947 | |
948 | for (;;) { | |
949 | sep = strchr(tb->ltb_text, ','); | |
950 | bracket = strchr(tb->ltb_text, '('); | |
951 | ||
06ace26e | 952 | if (sep && bracket && bracket < sep) { |
d7e09d03 PT |
953 | /* netspec lists interfaces... */ |
954 | ||
955 | offset2 = offset + (int)(bracket - tb->ltb_text); | |
956 | len = strlen(bracket); | |
957 | ||
958 | bracket = strchr(bracket + 1, ')'); | |
959 | ||
06ace26e | 960 | if (!bracket || |
5fd88337 | 961 | !(bracket[1] == ',' || !bracket[1])) { |
d7e09d03 PT |
962 | lnet_syntax("ip2nets", source, offset2, len); |
963 | return -EINVAL; | |
964 | } | |
965 | ||
5fd88337 | 966 | sep = !bracket[1] ? NULL : bracket + 1; |
d7e09d03 PT |
967 | } |
968 | ||
06ace26e | 969 | if (sep) |
d7e09d03 PT |
970 | *sep++ = 0; |
971 | ||
972 | net = lnet_netspec2net(tb->ltb_text); | |
973 | if (net == LNET_NIDNET(LNET_NID_ANY)) { | |
974 | lnet_syntax("ip2nets", source, offset, | |
975 | strlen(tb->ltb_text)); | |
976 | return -EINVAL; | |
977 | } | |
978 | ||
979 | list_for_each(t, nets) { | |
ddbc66a5 | 980 | tb2 = list_entry(t, struct lnet_text_buf, ltb_list); |
d7e09d03 PT |
981 | |
982 | if (tb2 == tb) | |
983 | continue; | |
984 | ||
985 | if (net == lnet_netspec2net(tb2->ltb_text)) { | |
986 | /* duplicate network */ | |
987 | lnet_syntax("ip2nets", source, offset, | |
988 | strlen(tb->ltb_text)); | |
989 | return -EINVAL; | |
990 | } | |
991 | } | |
992 | ||
06ace26e | 993 | if (!sep) |
d7e09d03 PT |
994 | return 0; |
995 | ||
996 | offset += (int)(sep - tb->ltb_text); | |
9563fe8a DE |
997 | len = strlen(sep); |
998 | tb2 = lnet_new_text_buf(len); | |
06ace26e | 999 | if (!tb2) |
d7e09d03 PT |
1000 | return -ENOMEM; |
1001 | ||
9563fe8a DE |
1002 | strncpy(tb2->ltb_text, sep, len); |
1003 | tb2->ltb_text[len] = '\0'; | |
d7e09d03 PT |
1004 | list_add_tail(&tb2->ltb_list, nets); |
1005 | ||
1006 | tb = tb2; | |
1007 | } | |
1008 | } | |
1009 | ||
714340db | 1010 | static int |
24edbe4f | 1011 | lnet_match_networks(char **networksp, char *ip2nets, __u32 *ipaddrs, int nip) |
d7e09d03 | 1012 | { |
7e7ab095 MS |
1013 | static char networks[LNET_SINGLE_TEXTBUF_NOB]; |
1014 | static char source[LNET_SINGLE_TEXTBUF_NOB]; | |
1015 | ||
1016 | struct list_head raw_entries; | |
1017 | struct list_head matched_nets; | |
1018 | struct list_head current_nets; | |
1019 | struct list_head *t; | |
1020 | struct list_head *t2; | |
ddbc66a5 | 1021 | struct lnet_text_buf *tb; |
cb734cf7 | 1022 | struct lnet_text_buf *temp; |
ddbc66a5 | 1023 | struct lnet_text_buf *tb2; |
7e7ab095 MS |
1024 | __u32 net1; |
1025 | __u32 net2; | |
1026 | int len; | |
1027 | int count; | |
1028 | int dup; | |
1029 | int rc; | |
d7e09d03 PT |
1030 | |
1031 | INIT_LIST_HEAD(&raw_entries); | |
1032 | if (lnet_str2tbs_sep(&raw_entries, ip2nets) < 0) { | |
1033 | CERROR("Error parsing ip2nets\n"); | |
5fd88337 | 1034 | LASSERT(!lnet_tbnob); |
d7e09d03 PT |
1035 | return -EINVAL; |
1036 | } | |
1037 | ||
1038 | INIT_LIST_HEAD(&matched_nets); | |
1039 | INIT_LIST_HEAD(¤t_nets); | |
1040 | networks[0] = 0; | |
1041 | count = 0; | |
1042 | len = 0; | |
1043 | rc = 0; | |
1044 | ||
cb734cf7 | 1045 | list_for_each_entry_safe(tb, temp, &raw_entries, ltb_list) { |
9563fe8a | 1046 | strncpy(source, tb->ltb_text, sizeof(source)); |
51078e25 | 1047 | source[sizeof(source) - 1] = '\0'; |
d7e09d03 PT |
1048 | |
1049 | /* replace ltb_text with the network(s) add on match */ | |
1050 | rc = lnet_match_network_tokens(tb->ltb_text, ipaddrs, nip); | |
1051 | if (rc < 0) | |
1052 | break; | |
1053 | ||
1054 | list_del(&tb->ltb_list); | |
1055 | ||
5fd88337 | 1056 | if (!rc) { /* no match */ |
d7e09d03 PT |
1057 | lnet_free_text_buf(tb); |
1058 | continue; | |
1059 | } | |
1060 | ||
1061 | /* split into separate networks */ | |
1062 | INIT_LIST_HEAD(¤t_nets); | |
1063 | list_add(&tb->ltb_list, ¤t_nets); | |
1064 | rc = lnet_splitnets(source, ¤t_nets); | |
1065 | if (rc < 0) | |
1066 | break; | |
1067 | ||
1068 | dup = 0; | |
24edbe4f | 1069 | list_for_each(t, ¤t_nets) { |
ddbc66a5 | 1070 | tb = list_entry(t, struct lnet_text_buf, ltb_list); |
d7e09d03 | 1071 | net1 = lnet_netspec2net(tb->ltb_text); |
24edbe4f | 1072 | LASSERT(net1 != LNET_NIDNET(LNET_NID_ANY)); |
d7e09d03 PT |
1073 | |
1074 | list_for_each(t2, &matched_nets) { | |
ddbc66a5 JS |
1075 | tb2 = list_entry(t2, struct lnet_text_buf, |
1076 | ltb_list); | |
d7e09d03 | 1077 | net2 = lnet_netspec2net(tb2->ltb_text); |
24edbe4f | 1078 | LASSERT(net2 != LNET_NIDNET(LNET_NID_ANY)); |
d7e09d03 PT |
1079 | |
1080 | if (net1 == net2) { | |
1081 | dup = 1; | |
1082 | break; | |
1083 | } | |
1084 | } | |
1085 | ||
1086 | if (dup) | |
1087 | break; | |
1088 | } | |
1089 | ||
1090 | if (dup) { | |
1091 | lnet_free_text_bufs(¤t_nets); | |
1092 | continue; | |
1093 | } | |
1094 | ||
1095 | list_for_each_safe(t, t2, ¤t_nets) { | |
ddbc66a5 | 1096 | tb = list_entry(t, struct lnet_text_buf, ltb_list); |
d7e09d03 PT |
1097 | |
1098 | list_del(&tb->ltb_list); | |
1099 | list_add_tail(&tb->ltb_list, &matched_nets); | |
1100 | ||
1101 | len += snprintf(networks + len, sizeof(networks) - len, | |
5fd88337 | 1102 | "%s%s", !len ? "" : ",", |
d7e09d03 PT |
1103 | tb->ltb_text); |
1104 | ||
1105 | if (len >= sizeof(networks)) { | |
1106 | CERROR("Too many matched networks\n"); | |
1107 | rc = -E2BIG; | |
1108 | goto out; | |
1109 | } | |
1110 | } | |
1111 | ||
1112 | count++; | |
1113 | } | |
1114 | ||
1115 | out: | |
1116 | lnet_free_text_bufs(&raw_entries); | |
1117 | lnet_free_text_bufs(&matched_nets); | |
1118 | lnet_free_text_bufs(¤t_nets); | |
5fd88337 | 1119 | LASSERT(!lnet_tbnob); |
d7e09d03 PT |
1120 | |
1121 | if (rc < 0) | |
1122 | return rc; | |
1123 | ||
1124 | *networksp = networks; | |
1125 | return count; | |
1126 | } | |
1127 | ||
714340db | 1128 | static int |
24edbe4f | 1129 | lnet_ipaddr_enumerate(__u32 **ipaddrsp) |
d7e09d03 | 1130 | { |
7e7ab095 MS |
1131 | int up; |
1132 | __u32 netmask; | |
1133 | __u32 *ipaddrs; | |
1134 | __u32 *ipaddrs2; | |
1135 | int nip; | |
1136 | char **ifnames; | |
1ad6a73e | 1137 | int nif = lnet_ipif_enumerate(&ifnames); |
7e7ab095 MS |
1138 | int i; |
1139 | int rc; | |
d7e09d03 PT |
1140 | |
1141 | if (nif <= 0) | |
1142 | return nif; | |
1143 | ||
1144 | LIBCFS_ALLOC(ipaddrs, nif * sizeof(*ipaddrs)); | |
06ace26e | 1145 | if (!ipaddrs) { |
d7e09d03 | 1146 | CERROR("Can't allocate ipaddrs[%d]\n", nif); |
1ad6a73e | 1147 | lnet_ipif_free_enumeration(ifnames, nif); |
d7e09d03 PT |
1148 | return -ENOMEM; |
1149 | } | |
1150 | ||
1151 | for (i = nip = 0; i < nif; i++) { | |
1152 | if (!strcmp(ifnames[i], "lo")) | |
1153 | continue; | |
1154 | ||
1ad6a73e | 1155 | rc = lnet_ipif_query(ifnames[i], &up, &ipaddrs[nip], &netmask); |
5fd88337 | 1156 | if (rc) { |
d7e09d03 PT |
1157 | CWARN("Can't query interface %s: %d\n", |
1158 | ifnames[i], rc); | |
1159 | continue; | |
1160 | } | |
1161 | ||
1162 | if (!up) { | |
1163 | CWARN("Ignoring interface %s: it's down\n", | |
1164 | ifnames[i]); | |
1165 | continue; | |
1166 | } | |
1167 | ||
1168 | nip++; | |
1169 | } | |
1170 | ||
1ad6a73e | 1171 | lnet_ipif_free_enumeration(ifnames, nif); |
d7e09d03 PT |
1172 | |
1173 | if (nip == nif) { | |
1174 | *ipaddrsp = ipaddrs; | |
1175 | } else { | |
1176 | if (nip > 0) { | |
1177 | LIBCFS_ALLOC(ipaddrs2, nip * sizeof(*ipaddrs2)); | |
06ace26e | 1178 | if (!ipaddrs2) { |
d7e09d03 PT |
1179 | CERROR("Can't allocate ipaddrs[%d]\n", nip); |
1180 | nip = -ENOMEM; | |
1181 | } else { | |
1182 | memcpy(ipaddrs2, ipaddrs, | |
1183 | nip * sizeof(*ipaddrs)); | |
1184 | *ipaddrsp = ipaddrs2; | |
1185 | rc = nip; | |
1186 | } | |
1187 | } | |
cfa38118 | 1188 | LIBCFS_FREE(ipaddrs, nip * sizeof(*ipaddrs)); |
d7e09d03 PT |
1189 | } |
1190 | return nip; | |
1191 | } | |
1192 | ||
1193 | int | |
24edbe4f | 1194 | lnet_parse_ip2nets(char **networksp, char *ip2nets) |
d7e09d03 | 1195 | { |
7e7ab095 MS |
1196 | __u32 *ipaddrs = NULL; |
1197 | int nip = lnet_ipaddr_enumerate(&ipaddrs); | |
1198 | int rc; | |
d7e09d03 PT |
1199 | |
1200 | if (nip < 0) { | |
e46b3a0b RK |
1201 | LCONSOLE_ERROR_MSG(0x117, |
1202 | "Error %d enumerating local IP interfaces for ip2nets to match\n", | |
1203 | nip); | |
d7e09d03 PT |
1204 | return nip; |
1205 | } | |
1206 | ||
5fd88337 | 1207 | if (!nip) { |
e46b3a0b RK |
1208 | LCONSOLE_ERROR_MSG(0x118, |
1209 | "No local IP interfaces for ip2nets to match\n"); | |
d7e09d03 PT |
1210 | return -ENOENT; |
1211 | } | |
1212 | ||
1213 | rc = lnet_match_networks(networksp, ip2nets, ipaddrs, nip); | |
cfa38118 | 1214 | LIBCFS_FREE(ipaddrs, nip * sizeof(*ipaddrs)); |
d7e09d03 PT |
1215 | |
1216 | if (rc < 0) { | |
1217 | LCONSOLE_ERROR_MSG(0x119, "Error %d parsing ip2nets\n", rc); | |
1218 | return rc; | |
1219 | } | |
1220 | ||
5fd88337 | 1221 | if (!rc) { |
e46b3a0b RK |
1222 | LCONSOLE_ERROR_MSG(0x11a, |
1223 | "ip2nets does not match any local IP interfaces\n"); | |
d7e09d03 PT |
1224 | return -ENOENT; |
1225 | } | |
1226 | ||
1227 | return 0; | |
1228 | } |