4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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.
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).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
31 * This file is part of Lustre, http://www.lustre.org/
32 * Lustre is a trademark of Sun Microsystems, Inc.
35 #define DEBUG_SUBSYSTEM S_LNET
36 #include <lnet/lib-lnet.h>
38 typedef struct { /* tmp struct for parsing routes */
39 cfs_list_t ltb_list; /* stash on lists */
40 int ltb_size; /* allocated size */
41 char ltb_text[0]; /* text buffer */
44 static int lnet_tbnob = 0; /* track text buf allocation */
45 #define LNET_MAX_TEXTBUF_NOB (64<<10) /* bound allocation */
46 #define LNET_SINGLE_TEXTBUF_NOB (4<<10)
49 cfs_list_t lre_list; /* stash in a list */
50 int lre_min; /* min value */
51 int lre_max; /* max value */
52 int lre_stride; /* stride */
55 static int lnet_re_alloc = 0; /* track expr allocation */
58 lnet_syntax(char *name, char *str, int offset, int width)
60 static char dots[LNET_SINGLE_TEXTBUF_NOB];
61 static char dashes[LNET_SINGLE_TEXTBUF_NOB];
63 memset(dots, '.', sizeof(dots));
64 dots[sizeof(dots)-1] = 0;
65 memset(dashes, '-', sizeof(dashes));
66 dashes[sizeof(dashes)-1] = 0;
68 LCONSOLE_ERROR_MSG(0x10f, "Error parsing '%s=\"%s\"'\n", name, str);
69 LCONSOLE_ERROR_MSG(0x110, "here...........%.*s..%.*s|%.*s|\n",
70 (int)strlen(name), dots, offset, dots,
71 (width < 1) ? 0 : width - 1, dashes);
88 lnet_trimwhite(char *str)
92 while (cfs_iswhite(*str))
95 end = str + strlen(str);
97 if (!cfs_iswhite(end[-1]))
107 lnet_net_unique(__u32 net, cfs_list_t *nilist)
112 cfs_list_for_each (tmp, nilist) {
113 ni = cfs_list_entry(tmp, lnet_ni_t, ni_list);
115 if (LNET_NIDNET(ni->ni_nid) == net)
123 lnet_new_ni(__u32 net, cfs_list_t *nilist)
127 if (!lnet_net_unique(net, nilist)) {
128 LCONSOLE_ERROR_MSG(0x111, "Duplicate network specified: %s\n",
129 libcfs_net2str(net));
133 LIBCFS_ALLOC(ni, sizeof(*ni));
135 CERROR("Out of memory creating network %s\n",
136 libcfs_net2str(net));
140 /* zero counters/flags, NULL pointers... */
141 memset(ni, 0, sizeof(*ni));
143 /* LND will fill in the address part of the NID */
144 ni->ni_nid = LNET_MKNID(net, 0);
145 CFS_INIT_LIST_HEAD(&ni->ni_txq);
146 ni->ni_last_alive = cfs_time_current();
148 cfs_list_add_tail(&ni->ni_list, nilist);
153 lnet_parse_networks(cfs_list_t *nilist, char *networks)
155 int tokensize = strlen(networks) + 1;
162 if (strlen(networks) > LNET_SINGLE_TEXTBUF_NOB) {
163 /* _WAY_ conservative */
164 LCONSOLE_ERROR_MSG(0x112, "Can't parse networks: string too "
169 LIBCFS_ALLOC(tokens, tokensize);
170 if (tokens == NULL) {
171 CERROR("Can't allocate net tokens\n");
175 the_lnet.ln_network_tokens = tokens;
176 the_lnet.ln_network_tokens_nob = tokensize;
177 memcpy (tokens, networks, tokensize);
180 /* Add in the loopback network */
181 ni = lnet_new_ni(LNET_MKNET(LOLND, 0), nilist);
185 while (str != NULL && *str != 0) {
186 char *comma = strchr(str, ',');
187 char *bracket = strchr(str, '(');
191 /* NB we don't check interface conflicts here; it's the LNDs
192 * responsibility (if it cares at all) */
194 if (bracket == NULL ||
195 (comma != NULL && comma < bracket)) {
197 /* no interface list specified */
201 net = libcfs_str2net(lnet_trimwhite(str));
203 if (net == LNET_NIDNET(LNET_NID_ANY)) {
204 lnet_syntax("networks", networks,
205 (int)(str - tokens), strlen(str));
206 LCONSOLE_ERROR_MSG(0x113, "Unrecognised network"
211 if (LNET_NETTYP(net) != LOLND && /* loopback is implicit */
212 lnet_new_ni(net, nilist) == NULL)
220 net = libcfs_str2net(lnet_trimwhite(str));
221 if (net == LNET_NIDNET(LNET_NID_ANY)) {
222 lnet_syntax("networks", networks,
223 (int)(str - tokens), strlen(str));
228 ni = lnet_new_ni(net, nilist);
235 bracket = strchr(iface, ')');
236 if (bracket == NULL) {
237 lnet_syntax("networks", networks,
238 (int)(iface - tokens), strlen(iface));
244 comma = strchr(iface, ',');
248 iface = lnet_trimwhite(iface);
250 lnet_syntax("networks", networks,
251 (int)(iface - tokens), strlen(iface));
255 if (niface == LNET_MAX_INTERFACES) {
256 LCONSOLE_ERROR_MSG(0x115, "Too many interfaces "
258 libcfs_net2str(net));
262 ni->ni_interfaces[niface++] = iface;
264 } while (iface != NULL);
267 comma = strchr(bracket + 1, ',');
270 str = lnet_trimwhite(str);
272 lnet_syntax("networks", networks,
273 (int)(str - tokens), strlen(str));
280 str = lnet_trimwhite(str);
282 lnet_syntax("networks", networks,
283 (int)(str - tokens), strlen(str));
288 LASSERT (!cfs_list_empty(nilist));
292 while (!cfs_list_empty(nilist)) {
293 ni = cfs_list_entry(nilist->next, lnet_ni_t, ni_list);
295 cfs_list_del(&ni->ni_list);
296 LIBCFS_FREE(ni, sizeof(*ni));
298 LIBCFS_FREE(tokens, tokensize);
299 the_lnet.ln_network_tokens = NULL;
305 lnet_new_text_buf (int str_len)
307 lnet_text_buf_t *ltb;
310 /* NB allocate space for the terminating 0 */
311 nob = offsetof(lnet_text_buf_t, ltb_text[str_len + 1]);
312 if (nob > LNET_SINGLE_TEXTBUF_NOB) {
313 /* _way_ conservative for "route net gateway..." */
314 CERROR("text buffer too big\n");
318 if (lnet_tbnob + nob > LNET_MAX_TEXTBUF_NOB) {
319 CERROR("Too many text buffers\n");
323 LIBCFS_ALLOC(ltb, nob);
328 ltb->ltb_text[0] = 0;
334 lnet_free_text_buf (lnet_text_buf_t *ltb)
336 lnet_tbnob -= ltb->ltb_size;
337 LIBCFS_FREE(ltb, ltb->ltb_size);
341 lnet_free_text_bufs(cfs_list_t *tbs)
343 lnet_text_buf_t *ltb;
345 while (!cfs_list_empty(tbs)) {
346 ltb = cfs_list_entry(tbs->next, lnet_text_buf_t, ltb_list);
348 cfs_list_del(<b->ltb_list);
349 lnet_free_text_buf(ltb);
354 lnet_print_text_bufs(cfs_list_t *tbs)
357 lnet_text_buf_t *ltb;
359 cfs_list_for_each (tmp, tbs) {
360 ltb = cfs_list_entry(tmp, lnet_text_buf_t, ltb_list);
362 CDEBUG(D_WARNING, "%s\n", ltb->ltb_text);
365 CDEBUG(D_WARNING, "%d allocated\n", lnet_tbnob);
369 lnet_str2tbs_sep (cfs_list_t *tbs, char *str)
375 lnet_text_buf_t *ltb;
377 CFS_INIT_LIST_HEAD(&pending);
379 /* Split 'str' into separate commands */
381 /* skip leading whitespace */
382 while (cfs_iswhite(*str))
385 /* scan for separator or comment */
386 for (sep = str; *sep != 0; sep++)
387 if (lnet_issep(*sep) || *sep == '#')
390 nob = (int)(sep - str);
392 ltb = lnet_new_text_buf(nob);
394 lnet_free_text_bufs(&pending);
398 for (i = 0; i < nob; i++)
399 if (cfs_iswhite(str[i]))
400 ltb->ltb_text[i] = ' ';
402 ltb->ltb_text[i] = str[i];
404 ltb->ltb_text[nob] = 0;
406 cfs_list_add_tail(<b->ltb_list, &pending);
410 /* scan for separator */
413 } while (*sep != 0 && !lnet_issep(*sep));
422 cfs_list_splice(&pending, tbs->prev);
427 lnet_expand1tb (cfs_list_t *list,
428 char *str, char *sep1, char *sep2,
429 char *item, int itemlen)
431 int len1 = (int)(sep1 - str);
432 int len2 = strlen(sep2 + 1);
433 lnet_text_buf_t *ltb;
435 LASSERT (*sep1 == '[');
436 LASSERT (*sep2 == ']');
438 ltb = lnet_new_text_buf(len1 + itemlen + len2);
442 memcpy(ltb->ltb_text, str, len1);
443 memcpy(<b->ltb_text[len1], item, itemlen);
444 memcpy(<b->ltb_text[len1+itemlen], sep2 + 1, len2);
445 ltb->ltb_text[len1 + itemlen + len2] = 0;
447 cfs_list_add_tail(<b->ltb_list, list);
452 lnet_str2tbs_expand (cfs_list_t *tbs, char *str)
467 CFS_INIT_LIST_HEAD(&pending);
469 sep = strchr(str, '[');
470 if (sep == NULL) /* nothing to expand */
473 sep2 = strchr(sep, ']');
477 for (parsed = sep; parsed < sep2; parsed = enditem) {
480 while (enditem < sep2 && *enditem != ',')
483 if (enditem == parsed) /* no empty items */
486 if (sscanf(parsed, "%d-%d/%d%n", &lo, &hi, &stride, &scanned) < 3) {
488 if (sscanf(parsed, "%d-%d%n", &lo, &hi, &scanned) < 2) {
490 /* simple string enumeration */
491 if (lnet_expand1tb(&pending, str, sep, sep2,
492 parsed, (int)(enditem - parsed)) != 0)
501 /* range expansion */
503 if (enditem != parsed + scanned) /* no trailing junk */
506 if (hi < 0 || lo < 0 || stride < 0 || hi < lo ||
507 (hi - lo) % stride != 0)
510 for (i = lo; i <= hi; i += stride) {
512 snprintf(num, sizeof(num), "%d", i);
514 if (nob + 1 == sizeof(num))
517 if (lnet_expand1tb(&pending, str, sep, sep2,
523 cfs_list_splice(&pending, tbs->prev);
527 lnet_free_text_bufs(&pending);
532 lnet_parse_hops (char *str, unsigned int *hops)
534 int len = strlen(str);
537 return (sscanf(str, "%u%n", hops, &nob) >= 1 &&
539 *hops > 0 && *hops < 256);
544 lnet_parse_route (char *str, int *im_a_router)
546 /* static scratch buffer OK (single threaded) */
547 static char cmd[LNET_SINGLE_TEXTBUF_NOB];
555 lnet_text_buf_t *ltb;
564 CFS_INIT_LIST_HEAD(&gateways);
565 CFS_INIT_LIST_HEAD(&nets);
567 /* save a copy of the string for error messages */
568 strncpy(cmd, str, sizeof(cmd) - 1);
569 cmd[sizeof(cmd) - 1] = 0;
573 /* scan for token start */
574 while (cfs_iswhite(*sep))
577 if (ntokens < (got_hops ? 3 : 2))
585 /* scan for token end */
586 while (*sep != 0 && !cfs_iswhite(*sep))
592 tmp2 = &nets; /* expanding nets */
593 } else if (ntokens == 2 &&
594 lnet_parse_hops(token, &hops)) {
595 got_hops = 1; /* got a hop count */
598 tmp2 = &gateways; /* expanding gateways */
601 ltb = lnet_new_text_buf(strlen(token));
605 strcpy(ltb->ltb_text, token);
606 tmp1 = <b->ltb_list;
607 cfs_list_add_tail(tmp1, tmp2);
609 while (tmp1 != tmp2) {
610 ltb = cfs_list_entry(tmp1, lnet_text_buf_t, ltb_list);
612 rc = lnet_str2tbs_expand(tmp1->next, ltb->ltb_text);
618 if (rc > 0) { /* expanded! */
619 cfs_list_del(<b->ltb_list);
620 lnet_free_text_buf(ltb);
625 net = libcfs_str2net(ltb->ltb_text);
626 if (net == LNET_NIDNET(LNET_NID_ANY) ||
627 LNET_NETTYP(net) == LOLND)
630 nid = libcfs_str2nid(ltb->ltb_text);
631 if (nid == LNET_NID_ANY ||
632 LNET_NETTYP(LNET_NIDNET(nid)) == LOLND)
641 LASSERT (!cfs_list_empty(&nets));
642 LASSERT (!cfs_list_empty(&gateways));
644 cfs_list_for_each (tmp1, &nets) {
645 ltb = cfs_list_entry(tmp1, lnet_text_buf_t, ltb_list);
646 net = libcfs_str2net(ltb->ltb_text);
647 LASSERT (net != LNET_NIDNET(LNET_NID_ANY));
649 cfs_list_for_each (tmp2, &gateways) {
650 ltb = cfs_list_entry(tmp2, lnet_text_buf_t, ltb_list);
651 nid = libcfs_str2nid(ltb->ltb_text);
652 LASSERT (nid != LNET_NID_ANY);
654 if (lnet_islocalnid(nid)) {
659 rc = lnet_add_route (net, hops, nid);
661 CERROR("Can't create route "
664 libcfs_nid2str(nid));
674 lnet_syntax("routes", cmd, (int)(token - str), strlen(token));
676 lnet_free_text_bufs(&nets);
677 lnet_free_text_bufs(&gateways);
682 lnet_parse_route_tbs(cfs_list_t *tbs, int *im_a_router)
684 lnet_text_buf_t *ltb;
686 while (!cfs_list_empty(tbs)) {
687 ltb = cfs_list_entry(tbs->next, lnet_text_buf_t, ltb_list);
689 if (lnet_parse_route(ltb->ltb_text, im_a_router) < 0) {
690 lnet_free_text_bufs(tbs);
694 cfs_list_del(<b->ltb_list);
695 lnet_free_text_buf(ltb);
702 lnet_parse_routes (char *routes, int *im_a_router)
709 CFS_INIT_LIST_HEAD(&tbs);
711 if (lnet_str2tbs_sep(&tbs, routes) < 0) {
712 CERROR("Error parsing routes\n");
715 rc = lnet_parse_route_tbs(&tbs, im_a_router);
718 LASSERT (lnet_tbnob == 0);
723 lnet_print_range_exprs(cfs_list_t *exprs)
726 lnet_range_expr_t *lre;
728 cfs_list_for_each(e, exprs) {
729 lre = cfs_list_entry(exprs->next, lnet_range_expr_t, lre_list);
731 CDEBUG(D_WARNING, "%d-%d/%d\n",
732 lre->lre_min, lre->lre_max, lre->lre_stride);
735 CDEBUG(D_WARNING, "%d allocated\n", lnet_re_alloc);
739 lnet_new_range_expr(cfs_list_t *exprs, int min, int max, int stride)
741 lnet_range_expr_t *lre;
743 CDEBUG(D_NET, "%d-%d/%d\n", min, max, stride);
745 if (min < 0 || min > 255 || min > max || stride < 0)
748 LIBCFS_ALLOC(lre, sizeof(*lre));
756 lre->lre_stride = stride;
758 cfs_list_add(&lre->lre_list, exprs);
763 lnet_destroy_range_exprs(cfs_list_t *exprs)
765 lnet_range_expr_t *lre;
767 while (!cfs_list_empty(exprs)) {
768 lre = cfs_list_entry(exprs->next, lnet_range_expr_t, lre_list);
770 cfs_list_del(&lre->lre_list);
771 LIBCFS_FREE(lre, sizeof(*lre));
777 lnet_parse_range_expr(cfs_list_t *exprs, char *str)
779 int nob = strlen(str);
790 if (!strcmp(str, "*")) /* match all */
791 return lnet_new_range_expr(exprs, 0, 255, 1);
794 if (sscanf(str, "%u%n", &x, &n) >= 1 && n == nob) {
796 return lnet_new_range_expr(exprs, x, x, 1);
799 /* Has to be an expansion */
800 if (!(str[0] == '[' && nob > 2 && str[nob-1] == ']'))
808 /* Comma separated list of expressions... */
809 sep = strchr(str, ',');
815 if (sscanf(str, "%u%n", &x, &n) >= 1 && n == nob) {
817 rc = lnet_new_range_expr(exprs, x, x, 1);
825 if (sscanf(str, "%u-%u%n", &x, &y, &n) >= 2 && n == nob) {
827 rc = lnet_new_range_expr(exprs, x, y, 1);
834 if (sscanf(str, "%u-%u/%u%n", &x, &y, &z, &n) >= 3 && n == nob) {
836 rc = lnet_new_range_expr(exprs, x, y, z);
844 } while ((str = sep) != NULL);
850 lnet_match_network_token(char *token, __u32 *ipaddrs, int nip)
854 lnet_range_expr_t *re;
863 for (i = 0; i < 4; i++)
864 CFS_INIT_LIST_HEAD(&exprs[i]);
866 for (i = 0; i < 4; i++) {
869 token = strchr(token, '.');
877 rc = lnet_parse_range_expr(&exprs[i], str);
884 for (match = i = 0; !match && i < nip; i++) {
887 for (match = 1, j = 0; match && j < 4; j++) {
888 n = (ip >> (8 * (3 - j))) & 0xff;
891 cfs_list_for_each(e, &exprs[j]) {
892 re = cfs_list_entry(e, lnet_range_expr_t,
895 if (re->lre_min <= n &&
897 (n - re->lre_min) % re->lre_stride == 0) {
908 for (i = 0; i < 4; i++)
909 lnet_destroy_range_exprs(&exprs[i]);
910 LASSERT (lnet_re_alloc == 0);
916 lnet_match_network_tokens(char *net_entry, __u32 *ipaddrs, int nip)
918 static char tokens[LNET_SINGLE_TEXTBUF_NOB];
928 LASSERT (strlen(net_entry) < sizeof(tokens));
930 /* work on a copy of the string */
931 strcpy(tokens, net_entry);
934 /* scan for token start */
935 while (cfs_iswhite(*sep))
942 /* scan for token end */
943 while (*sep != 0 && !cfs_iswhite(*sep))
948 if (ntokens++ == 0) {
955 rc = lnet_match_network_token(token, ipaddrs, nip);
957 lnet_syntax("ip2nets", net_entry,
958 (int)(token - tokens), len);
962 matched |= (rc != 0);
968 strcpy(net_entry, net); /* replace with matched net */
973 lnet_netspec2net(char *netspec)
975 char *bracket = strchr(netspec, '(');
981 net = libcfs_str2net(netspec);
990 lnet_splitnets(char *source, cfs_list_t *nets)
996 lnet_text_buf_t *tb2;
1002 LASSERT (!cfs_list_empty(nets));
1003 LASSERT (nets->next == nets->prev); /* single entry */
1005 tb = cfs_list_entry(nets->next, lnet_text_buf_t, ltb_list);
1008 sep = strchr(tb->ltb_text, ',');
1009 bracket = strchr(tb->ltb_text, '(');
1014 /* netspec lists interfaces... */
1016 offset2 = offset + (int)(bracket - tb->ltb_text);
1017 len = strlen(bracket);
1019 bracket = strchr(bracket + 1, ')');
1021 if (bracket == NULL ||
1022 !(bracket[1] == ',' || bracket[1] == 0)) {
1023 lnet_syntax("ip2nets", source, offset2, len);
1027 sep = (bracket[1] == 0) ? NULL : bracket + 1;
1033 net = lnet_netspec2net(tb->ltb_text);
1034 if (net == LNET_NIDNET(LNET_NID_ANY)) {
1035 lnet_syntax("ip2nets", source, offset,
1036 strlen(tb->ltb_text));
1040 cfs_list_for_each(t, nets) {
1041 tb2 = cfs_list_entry(t, lnet_text_buf_t, ltb_list);
1046 if (net == lnet_netspec2net(tb2->ltb_text)) {
1047 /* duplicate network */
1048 lnet_syntax("ip2nets", source, offset,
1049 strlen(tb->ltb_text));
1057 offset += (int)(sep - tb->ltb_text);
1058 tb2 = lnet_new_text_buf(strlen(sep));
1062 strcpy(tb2->ltb_text, sep);
1063 cfs_list_add_tail(&tb2->ltb_list, nets);
1070 lnet_match_networks (char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
1072 static char networks[LNET_SINGLE_TEXTBUF_NOB];
1073 static char source[LNET_SINGLE_TEXTBUF_NOB];
1075 cfs_list_t raw_entries;
1076 cfs_list_t matched_nets;
1077 cfs_list_t current_nets;
1080 lnet_text_buf_t *tb;
1081 lnet_text_buf_t *tb2;
1089 CFS_INIT_LIST_HEAD(&raw_entries);
1090 if (lnet_str2tbs_sep(&raw_entries, ip2nets) < 0) {
1091 CERROR("Error parsing ip2nets\n");
1092 LASSERT (lnet_tbnob == 0);
1096 CFS_INIT_LIST_HEAD(&matched_nets);
1097 CFS_INIT_LIST_HEAD(¤t_nets);
1103 while (!cfs_list_empty(&raw_entries)) {
1104 tb = cfs_list_entry(raw_entries.next, lnet_text_buf_t,
1107 strncpy(source, tb->ltb_text, sizeof(source)-1);
1108 source[sizeof(source)-1] = 0;
1110 /* replace ltb_text with the network(s) add on match */
1111 rc = lnet_match_network_tokens(tb->ltb_text, ipaddrs, nip);
1115 cfs_list_del(&tb->ltb_list);
1117 if (rc == 0) { /* no match */
1118 lnet_free_text_buf(tb);
1122 /* split into separate networks */
1123 CFS_INIT_LIST_HEAD(¤t_nets);
1124 cfs_list_add(&tb->ltb_list, ¤t_nets);
1125 rc = lnet_splitnets(source, ¤t_nets);
1130 cfs_list_for_each (t, ¤t_nets) {
1131 tb = cfs_list_entry(t, lnet_text_buf_t, ltb_list);
1132 net1 = lnet_netspec2net(tb->ltb_text);
1133 LASSERT (net1 != LNET_NIDNET(LNET_NID_ANY));
1135 cfs_list_for_each(t2, &matched_nets) {
1136 tb2 = cfs_list_entry(t2, lnet_text_buf_t,
1138 net2 = lnet_netspec2net(tb2->ltb_text);
1139 LASSERT (net2 != LNET_NIDNET(LNET_NID_ANY));
1152 lnet_free_text_bufs(¤t_nets);
1156 cfs_list_for_each_safe(t, t2, ¤t_nets) {
1157 tb = cfs_list_entry(t, lnet_text_buf_t, ltb_list);
1159 cfs_list_del(&tb->ltb_list);
1160 cfs_list_add_tail(&tb->ltb_list, &matched_nets);
1162 len += snprintf(networks + len, sizeof(networks) - len,
1163 "%s%s", (len == 0) ? "" : ",",
1166 if (len >= sizeof(networks)) {
1167 CERROR("Too many matched networks\n");
1177 lnet_free_text_bufs(&raw_entries);
1178 lnet_free_text_bufs(&matched_nets);
1179 lnet_free_text_bufs(¤t_nets);
1180 LASSERT (lnet_tbnob == 0);
1185 *networksp = networks;
1191 lnet_ipaddr_free_enumeration(__u32 *ipaddrs, int nip)
1193 LIBCFS_FREE(ipaddrs, nip * sizeof(*ipaddrs));
1197 lnet_ipaddr_enumerate (__u32 **ipaddrsp)
1205 int nif = libcfs_ipif_enumerate(&ifnames);
1212 LIBCFS_ALLOC(ipaddrs, nif * sizeof(*ipaddrs));
1213 if (ipaddrs == NULL) {
1214 CERROR("Can't allocate ipaddrs[%d]\n", nif);
1215 libcfs_ipif_free_enumeration(ifnames, nif);
1219 for (i = nip = 0; i < nif; i++) {
1220 if (!strcmp(ifnames[i], "lo"))
1223 rc = libcfs_ipif_query(ifnames[i], &up,
1224 &ipaddrs[nip], &netmask);
1226 CWARN("Can't query interface %s: %d\n",
1232 CWARN("Ignoring interface %s: it's down\n",
1240 libcfs_ipif_free_enumeration(ifnames, nif);
1243 *ipaddrsp = ipaddrs;
1246 LIBCFS_ALLOC(ipaddrs2, nip * sizeof(*ipaddrs2));
1247 if (ipaddrs2 == NULL) {
1248 CERROR("Can't allocate ipaddrs[%d]\n", nip);
1251 memcpy(ipaddrs2, ipaddrs,
1252 nip * sizeof(*ipaddrs));
1253 *ipaddrsp = ipaddrs2;
1257 lnet_ipaddr_free_enumeration(ipaddrs, nif);
1263 lnet_parse_ip2nets (char **networksp, char *ip2nets)
1266 int nip = lnet_ipaddr_enumerate(&ipaddrs);
1270 LCONSOLE_ERROR_MSG(0x117, "Error %d enumerating local IP "
1271 "interfaces for ip2nets to match\n", nip);
1276 LCONSOLE_ERROR_MSG(0x118, "No local IP interfaces "
1277 "for ip2nets to match\n");
1281 rc = lnet_match_networks(networksp, ip2nets, ipaddrs, nip);
1282 lnet_ipaddr_free_enumeration(ipaddrs, nip);
1285 LCONSOLE_ERROR_MSG(0x119, "Error %d parsing ip2nets\n", rc);
1290 LCONSOLE_ERROR_MSG(0x11a, "ip2nets does not match "
1291 "any local IP interfaces\n");
1299 lnet_set_ip_niaddr (lnet_ni_t *ni)
1301 __u32 net = LNET_NIDNET(ni->ni_nid);
1310 /* Convenience for LNDs that use the IP address of a local interface as
1311 * the local address part of their NID */
1313 if (ni->ni_interfaces[0] != NULL) {
1315 CLASSERT (LNET_MAX_INTERFACES > 1);
1317 if (ni->ni_interfaces[1] != NULL) {
1318 CERROR("Net %s doesn't support multiple interfaces\n",
1319 libcfs_net2str(net));
1323 rc = libcfs_ipif_query(ni->ni_interfaces[0],
1324 &up, &ip, &netmask);
1326 CERROR("Net %s can't query interface %s: %d\n",
1327 libcfs_net2str(net), ni->ni_interfaces[0], rc);
1332 CERROR("Net %s can't use interface %s: it's down\n",
1333 libcfs_net2str(net), ni->ni_interfaces[0]);
1337 ni->ni_nid = LNET_MKNID(net, ip);
1341 n = libcfs_ipif_enumerate(&names);
1343 CERROR("Net %s can't enumerate interfaces: %d\n",
1344 libcfs_net2str(net), n);
1348 for (i = 0; i < n; i++) {
1349 if (!strcmp(names[i], "lo")) /* skip the loopback IF */
1352 rc = libcfs_ipif_query(names[i], &up, &ip, &netmask);
1355 CWARN("Net %s can't query interface %s: %d\n",
1356 libcfs_net2str(net), names[i], rc);
1361 CWARN("Net %s ignoring interface %s (down)\n",
1362 libcfs_net2str(net), names[i]);
1366 libcfs_ipif_free_enumeration(names, n);
1367 ni->ni_nid = LNET_MKNID(net, ip);
1371 CERROR("Net %s can't find any interfaces\n", libcfs_net2str(net));
1372 libcfs_ipif_free_enumeration(names, n);
1375 EXPORT_SYMBOL(lnet_set_ip_niaddr);