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.
30 * Copyright (c) 2012, 2014, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #define DEBUG_SUBSYSTEM S_LNET
38 #include <lnet/lib-lnet.h>
40 /* tmp struct for parsing routes */
41 struct lnet_text_buf {
42 struct list_head ltb_list; /* stash on lists */
43 int ltb_size; /* allocated size */
44 char ltb_text[0]; /* text buffer */
47 static int lnet_tbnob = 0; /* track text buf allocation */
48 #define LNET_MAX_TEXTBUF_NOB (64<<10) /* bound allocation */
49 #define LNET_SINGLE_TEXTBUF_NOB (4<<10)
52 lnet_syntax(char *name, char *str, int offset, int width)
54 static char dots[LNET_SINGLE_TEXTBUF_NOB];
55 static char dashes[LNET_SINGLE_TEXTBUF_NOB];
57 memset(dots, '.', sizeof(dots));
58 dots[sizeof(dots)-1] = 0;
59 memset(dashes, '-', sizeof(dashes));
60 dashes[sizeof(dashes)-1] = 0;
62 LCONSOLE_ERROR_MSG(0x10f, "Error parsing '%s=\"%s\"'\n", name, str);
63 LCONSOLE_ERROR_MSG(0x110, "here...........%.*s..%.*s|%.*s|\n",
64 (int)strlen(name), dots, offset, dots,
65 (width < 1) ? 0 : width - 1, dashes);
82 lnet_net_unique(__u32 net, struct list_head *nilist)
84 struct list_head *tmp;
87 list_for_each(tmp, nilist) {
88 ni = list_entry(tmp, lnet_ni_t, ni_list);
90 if (LNET_NIDNET(ni->ni_nid) == net)
98 lnet_ni_free(struct lnet_ni *ni)
102 if (ni->ni_refs != NULL)
103 cfs_percpt_free(ni->ni_refs);
105 if (ni->ni_tx_queues != NULL)
106 cfs_percpt_free(ni->ni_tx_queues);
108 if (ni->ni_cpts != NULL)
109 cfs_expr_list_values_free(ni->ni_cpts, ni->ni_ncpts);
112 # ifdef HAVE_LIBPTHREAD
113 pthread_mutex_destroy(&ni->ni_lock);
116 for (i = 0; i < LNET_MAX_INTERFACES &&
117 ni->ni_interfaces[i] != NULL; i++) {
118 LIBCFS_FREE(ni->ni_interfaces[i],
119 strlen(ni->ni_interfaces[i]) + 1);
121 LIBCFS_FREE(ni, sizeof(*ni));
125 lnet_ni_alloc(__u32 net, struct cfs_expr_list *el, struct list_head *nilist)
127 struct lnet_tx_queue *tq;
132 if (!lnet_net_unique(net, nilist)) {
133 LCONSOLE_ERROR_MSG(0x111, "Duplicate network specified: %s\n",
134 libcfs_net2str(net));
138 LIBCFS_ALLOC(ni, sizeof(*ni));
140 CERROR("Out of memory creating network %s\n",
141 libcfs_net2str(net));
146 spin_lock_init(&ni->ni_lock);
148 # ifdef HAVE_LIBPTHREAD
149 pthread_mutex_init(&ni->ni_lock, NULL);
152 INIT_LIST_HEAD(&ni->ni_cptlist);
153 ni->ni_refs = cfs_percpt_alloc(lnet_cpt_table(),
154 sizeof(*ni->ni_refs[0]));
155 if (ni->ni_refs == NULL)
158 ni->ni_tx_queues = cfs_percpt_alloc(lnet_cpt_table(),
159 sizeof(*ni->ni_tx_queues[0]));
160 if (ni->ni_tx_queues == NULL)
163 cfs_percpt_for_each(tq, i, ni->ni_tx_queues)
164 INIT_LIST_HEAD(&tq->tq_delayed);
168 ni->ni_ncpts = LNET_CPT_NUMBER;
170 rc = cfs_expr_list_values(el, LNET_CPT_NUMBER, &ni->ni_cpts);
172 CERROR("Failed to set CPTs for NI %s: %d\n",
173 libcfs_net2str(net), rc);
177 LASSERT(rc <= LNET_CPT_NUMBER);
178 if (rc == LNET_CPT_NUMBER) {
179 LIBCFS_FREE(ni->ni_cpts, rc * sizeof(ni->ni_cpts[0]));
186 /* LND will fill in the address part of the NID */
187 ni->ni_nid = LNET_MKNID(net, 0);
188 ni->ni_last_alive = cfs_time_current_sec();
189 list_add_tail(&ni->ni_list, nilist);
197 lnet_parse_networks(struct list_head *nilist, char *networks)
199 struct cfs_expr_list *el = NULL;
207 struct list_head *temp_node;
209 if (networks == NULL) {
210 CERROR("networks string is undefined\n");
214 if (strlen(networks) > LNET_SINGLE_TEXTBUF_NOB) {
215 /* _WAY_ conservative */
216 LCONSOLE_ERROR_MSG(0x112, "Can't parse networks: string too "
221 tokensize = strlen(networks) + 1;
223 LIBCFS_ALLOC(tokens, tokensize);
224 if (tokens == NULL) {
225 CERROR("Can't allocate net tokens\n");
229 memcpy(tokens, networks, tokensize);
232 while (str != NULL && *str != 0) {
233 char *comma = strchr(str, ',');
234 char *bracket = strchr(str, '(');
235 char *square = strchr(str, '[');
240 /* NB we don't check interface conflicts here; it's the LNDs
241 * responsibility (if it cares at all) */
243 if (square != NULL && (comma == NULL || square < comma)) {
244 /* i.e: o2ib0(ib0)[1,2], number between square
245 * brackets are CPTs this NI needs to be bond */
246 if (bracket != NULL && bracket > square) {
251 tmp = strchr(square, ']');
257 rc = cfs_expr_list_parse(square, tmp - square + 1,
258 0, LNET_CPT_NUMBER - 1, &el);
264 while (square <= tmp)
268 if (bracket == NULL ||
269 (comma != NULL && comma < bracket)) {
271 /* no interface list specified */
275 net = libcfs_str2net(cfs_trimwhite(str));
277 if (net == LNET_NIDNET(LNET_NID_ANY)) {
278 LCONSOLE_ERROR_MSG(0x113, "Unrecognised network"
284 if (LNET_NETTYP(net) != LOLND && /* LO is implicit */
285 lnet_ni_alloc(net, el, nilist) == NULL)
289 cfs_expr_list_free(el);
298 net = libcfs_str2net(cfs_trimwhite(str));
299 if (net == LNET_NIDNET(LNET_NID_ANY)) {
304 ni = lnet_ni_alloc(net, el, nilist);
309 cfs_expr_list_free(el);
316 bracket = strchr(iface, ')');
317 if (bracket == NULL) {
324 comma = strchr(iface, ',');
328 iface = cfs_trimwhite(iface);
334 if (niface == LNET_MAX_INTERFACES) {
335 LCONSOLE_ERROR_MSG(0x115, "Too many interfaces "
337 libcfs_net2str(net));
341 /* Allocate a seperate piece of memory and copy
342 * into it the string, so we don't have
343 * a depencency on the tokens string. This way we
344 * can free the tokens at the end of the function.
345 * The newly allocated ni_interfaces[] can be
346 * freed when freeing the NI */
347 LIBCFS_ALLOC(ni->ni_interfaces[niface],
349 if (ni->ni_interfaces[niface] == NULL) {
350 CERROR("Can't allocate net interface name\n");
353 strncpy(ni->ni_interfaces[niface], iface,
357 } while (iface != NULL);
360 comma = strchr(bracket + 1, ',');
363 str = cfs_trimwhite(str);
372 str = cfs_trimwhite(str);
379 list_for_each(temp_node, nilist)
382 LIBCFS_FREE(tokens, tokensize);
386 lnet_syntax("networks", networks, (int)(tmp - tokens), strlen(tmp));
388 while (!list_empty(nilist)) {
389 ni = list_entry(nilist->next, lnet_ni_t, ni_list);
391 list_del(&ni->ni_list);
396 cfs_expr_list_free(el);
398 LIBCFS_FREE(tokens, tokensize);
403 static struct lnet_text_buf *lnet_new_text_buf(int str_len)
405 struct lnet_text_buf *ltb;
408 /* NB allocate space for the terminating 0 */
409 nob = offsetof(struct lnet_text_buf, ltb_text[str_len + 1]);
410 if (nob > LNET_SINGLE_TEXTBUF_NOB) {
411 /* _way_ conservative for "route net gateway..." */
412 CERROR("text buffer too big\n");
416 if (lnet_tbnob + nob > LNET_MAX_TEXTBUF_NOB) {
417 CERROR("Too many text buffers\n");
421 LIBCFS_ALLOC(ltb, nob);
426 ltb->ltb_text[0] = 0;
432 lnet_free_text_buf(struct lnet_text_buf *ltb)
434 lnet_tbnob -= ltb->ltb_size;
435 LIBCFS_FREE(ltb, ltb->ltb_size);
439 lnet_free_text_bufs(struct list_head *tbs)
441 struct lnet_text_buf *ltb;
443 while (!list_empty(tbs)) {
444 ltb = list_entry(tbs->next, struct lnet_text_buf, ltb_list);
446 list_del(<b->ltb_list);
447 lnet_free_text_buf(ltb);
452 lnet_print_text_bufs(struct list_head *tbs)
454 struct list_head *tmp;
455 struct lnet_text_buf *ltb;
457 list_for_each(tmp, tbs) {
458 ltb = list_entry(tmp, struct lnet_text_buf, ltb_list);
460 CDEBUG(D_WARNING, "%s\n", ltb->ltb_text);
463 CDEBUG(D_WARNING, "%d allocated\n", lnet_tbnob);
467 lnet_str2tbs_sep(struct list_head *tbs, char *str)
469 struct list_head pending;
473 struct lnet_text_buf *ltb;
475 INIT_LIST_HEAD(&pending);
477 /* Split 'str' into separate commands */
479 /* skip leading whitespace */
480 while (cfs_iswhite(*str))
483 /* scan for separator or comment */
484 for (sep = str; *sep != 0; sep++)
485 if (lnet_issep(*sep) || *sep == '#')
488 nob = (int)(sep - str);
490 ltb = lnet_new_text_buf(nob);
492 lnet_free_text_bufs(&pending);
496 for (i = 0; i < nob; i++)
497 if (cfs_iswhite(str[i]))
498 ltb->ltb_text[i] = ' ';
500 ltb->ltb_text[i] = str[i];
502 ltb->ltb_text[nob] = 0;
504 list_add_tail(<b->ltb_list, &pending);
508 /* scan for separator */
511 } while (*sep != 0 && !lnet_issep(*sep));
520 list_splice(&pending, tbs->prev);
525 lnet_expand1tb(struct list_head *list,
526 char *str, char *sep1, char *sep2,
527 char *item, int itemlen)
529 int len1 = (int)(sep1 - str);
530 int len2 = strlen(sep2 + 1);
531 struct lnet_text_buf *ltb;
533 LASSERT (*sep1 == '[');
534 LASSERT (*sep2 == ']');
536 ltb = lnet_new_text_buf(len1 + itemlen + len2);
540 memcpy(ltb->ltb_text, str, len1);
541 memcpy(<b->ltb_text[len1], item, itemlen);
542 memcpy(<b->ltb_text[len1+itemlen], sep2 + 1, len2);
543 ltb->ltb_text[len1 + itemlen + len2] = 0;
545 list_add_tail(<b->ltb_list, list);
550 lnet_str2tbs_expand(struct list_head *tbs, char *str)
553 struct list_head pending;
565 INIT_LIST_HEAD(&pending);
567 sep = strchr(str, '[');
568 if (sep == NULL) /* nothing to expand */
571 sep2 = strchr(sep, ']');
575 for (parsed = sep; parsed < sep2; parsed = enditem) {
578 while (enditem < sep2 && *enditem != ',')
581 if (enditem == parsed) /* no empty items */
584 if (sscanf(parsed, "%d-%d/%d%n", &lo, &hi, &stride, &scanned) < 3) {
586 if (sscanf(parsed, "%d-%d%n", &lo, &hi, &scanned) < 2) {
588 /* simple string enumeration */
589 if (lnet_expand1tb(&pending, str, sep, sep2,
590 parsed, (int)(enditem - parsed)) != 0)
599 /* range expansion */
601 if (enditem != parsed + scanned) /* no trailing junk */
604 if (hi < 0 || lo < 0 || stride < 0 || hi < lo ||
605 (hi - lo) % stride != 0)
608 for (i = lo; i <= hi; i += stride) {
610 snprintf(num, sizeof(num), "%d", i);
612 if (nob + 1 == sizeof(num))
615 if (lnet_expand1tb(&pending, str, sep, sep2,
621 list_splice(&pending, tbs->prev);
625 lnet_free_text_bufs(&pending);
630 lnet_parse_hops (char *str, unsigned int *hops)
632 int len = strlen(str);
635 return (sscanf(str, "%u%n", hops, &nob) >= 1 &&
637 *hops > 0 && *hops < 256);
640 #define LNET_PRIORITY_SEPARATOR (':')
643 lnet_parse_priority(char *str, unsigned int *priority, char **token)
649 sep = strchr(str, LNET_PRIORITY_SEPARATOR);
654 len = strlen(sep + 1);
656 if ((sscanf((sep+1), "%u%n", priority, &nob) < 1) || (len != nob)) {
657 /* Update the caller's token pointer so it treats the found
658 priority as the token to report in the error message. */
659 *token += sep - str + 1;
663 CDEBUG(D_NET, "gateway %s, priority %d, nob %d\n", str, *priority, nob);
666 * Change priority separator to \0 to be able to parse NID
673 lnet_parse_route (char *str, int *im_a_router)
675 /* static scratch buffer OK (single threaded) */
676 static char cmd[LNET_SINGLE_TEXTBUF_NOB];
678 struct list_head nets;
679 struct list_head gateways;
680 struct list_head *tmp1;
681 struct list_head *tmp2;
684 struct lnet_text_buf *ltb;
692 unsigned int priority = 0;
694 INIT_LIST_HEAD(&gateways);
695 INIT_LIST_HEAD(&nets);
697 /* save a copy of the string for error messages */
698 strncpy(cmd, str, sizeof(cmd));
699 cmd[sizeof(cmd) - 1] = '\0';
703 /* scan for token start */
704 while (cfs_iswhite(*sep))
707 if (ntokens < (got_hops ? 3 : 2))
715 /* scan for token end */
716 while (*sep != 0 && !cfs_iswhite(*sep))
722 tmp2 = &nets; /* expanding nets */
723 } else if (ntokens == 2 &&
724 lnet_parse_hops(token, &hops)) {
725 got_hops = 1; /* got a hop count */
728 tmp2 = &gateways; /* expanding gateways */
731 ltb = lnet_new_text_buf(strlen(token));
735 strcpy(ltb->ltb_text, token);
736 tmp1 = <b->ltb_list;
737 list_add_tail(tmp1, tmp2);
739 while (tmp1 != tmp2) {
740 ltb = list_entry(tmp1, struct lnet_text_buf, ltb_list);
742 rc = lnet_str2tbs_expand(tmp1->next, ltb->ltb_text);
748 if (rc > 0) { /* expanded! */
749 list_del(<b->ltb_list);
750 lnet_free_text_buf(ltb);
755 net = libcfs_str2net(ltb->ltb_text);
756 if (net == LNET_NIDNET(LNET_NID_ANY) ||
757 LNET_NETTYP(net) == LOLND)
760 rc = lnet_parse_priority(ltb->ltb_text,
765 nid = libcfs_str2nid(ltb->ltb_text);
766 if (nid == LNET_NID_ANY ||
767 LNET_NETTYP(LNET_NIDNET(nid)) == LOLND)
776 LASSERT(!list_empty(&nets));
777 LASSERT(!list_empty(&gateways));
779 list_for_each(tmp1, &nets) {
780 ltb = list_entry(tmp1, struct lnet_text_buf, ltb_list);
781 net = libcfs_str2net(ltb->ltb_text);
782 LASSERT (net != LNET_NIDNET(LNET_NID_ANY));
784 list_for_each(tmp2, &gateways) {
785 ltb = list_entry(tmp2, struct lnet_text_buf, ltb_list);
786 nid = libcfs_str2nid(ltb->ltb_text);
787 LASSERT(nid != LNET_NID_ANY);
789 if (lnet_islocalnid(nid)) {
794 rc = lnet_add_route(net, hops, nid, priority);
795 if (rc != 0 && rc != -EEXIST && rc != -EHOSTUNREACH) {
796 CERROR("Can't create route "
799 libcfs_nid2str(nid));
809 lnet_syntax("routes", cmd, (int)(token - str), strlen(token));
811 lnet_free_text_bufs(&nets);
812 lnet_free_text_bufs(&gateways);
817 lnet_parse_route_tbs(struct list_head *tbs, int *im_a_router)
819 struct lnet_text_buf *ltb;
821 while (!list_empty(tbs)) {
822 ltb = list_entry(tbs->next, struct lnet_text_buf, ltb_list);
824 if (lnet_parse_route(ltb->ltb_text, im_a_router) < 0) {
825 lnet_free_text_bufs(tbs);
829 list_del(<b->ltb_list);
830 lnet_free_text_buf(ltb);
837 lnet_parse_routes (char *routes, int *im_a_router)
839 struct list_head tbs;
844 INIT_LIST_HEAD(&tbs);
846 if (lnet_str2tbs_sep(&tbs, routes) < 0) {
847 CERROR("Error parsing routes\n");
850 rc = lnet_parse_route_tbs(&tbs, im_a_router);
853 LASSERT (lnet_tbnob == 0);
858 lnet_match_network_token(char *token, int len, __u32 *ipaddrs, int nip)
860 struct list_head list = LIST_HEAD_INIT(list);
864 rc = cfs_ip_addr_parse(token, len, &list);
868 for (rc = i = 0; !rc && i < nip; i++)
869 rc = cfs_ip_addr_match(ipaddrs[i], &list);
871 cfs_ip_addr_free(&list);
877 lnet_match_network_tokens(char *net_entry, __u32 *ipaddrs, int nip)
879 static char tokens[LNET_SINGLE_TEXTBUF_NOB];
889 LASSERT (strlen(net_entry) < sizeof(tokens));
891 /* work on a copy of the string */
892 strcpy(tokens, net_entry);
895 /* scan for token start */
896 while (cfs_iswhite(*sep))
903 /* scan for token end */
904 while (*sep != 0 && !cfs_iswhite(*sep))
909 if (ntokens++ == 0) {
916 rc = lnet_match_network_token(token, len, ipaddrs, nip);
918 lnet_syntax("ip2nets", net_entry,
919 (int)(token - tokens), len);
923 matched |= (rc != 0);
929 strcpy(net_entry, net); /* replace with matched net */
934 lnet_netspec2net(char *netspec)
936 char *bracket = strchr(netspec, '(');
942 net = libcfs_str2net(netspec);
951 lnet_splitnets(char *source, struct list_head *nets)
956 struct lnet_text_buf *tb;
957 struct lnet_text_buf *tb2;
963 LASSERT(!list_empty(nets));
964 LASSERT(nets->next == nets->prev); /* single entry */
966 tb = list_entry(nets->next, struct lnet_text_buf, ltb_list);
969 sep = strchr(tb->ltb_text, ',');
970 bracket = strchr(tb->ltb_text, '(');
975 /* netspec lists interfaces... */
977 offset2 = offset + (int)(bracket - tb->ltb_text);
978 len = strlen(bracket);
980 bracket = strchr(bracket + 1, ')');
982 if (bracket == NULL ||
983 !(bracket[1] == ',' || bracket[1] == 0)) {
984 lnet_syntax("ip2nets", source, offset2, len);
988 sep = (bracket[1] == 0) ? NULL : bracket + 1;
994 net = lnet_netspec2net(tb->ltb_text);
995 if (net == LNET_NIDNET(LNET_NID_ANY)) {
996 lnet_syntax("ip2nets", source, offset,
997 strlen(tb->ltb_text));
1001 list_for_each(t, nets) {
1002 tb2 = list_entry(t, struct lnet_text_buf, ltb_list);
1007 if (net == lnet_netspec2net(tb2->ltb_text)) {
1008 /* duplicate network */
1009 lnet_syntax("ip2nets", source, offset,
1010 strlen(tb->ltb_text));
1018 offset += (int)(sep - tb->ltb_text);
1020 tb2 = lnet_new_text_buf(len);
1024 strncpy(tb2->ltb_text, sep, len);
1025 tb2->ltb_text[len] = '\0';
1026 list_add_tail(&tb2->ltb_list, nets);
1033 lnet_match_networks (char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
1035 static char networks[LNET_SINGLE_TEXTBUF_NOB];
1036 static char source[LNET_SINGLE_TEXTBUF_NOB];
1038 struct list_head raw_entries;
1039 struct list_head matched_nets;
1040 struct list_head current_nets;
1041 struct list_head *t;
1042 struct list_head *t2;
1043 struct lnet_text_buf *tb;
1044 struct lnet_text_buf *tb2;
1052 INIT_LIST_HEAD(&raw_entries);
1053 if (lnet_str2tbs_sep(&raw_entries, ip2nets) < 0) {
1054 CERROR("Error parsing ip2nets\n");
1055 LASSERT (lnet_tbnob == 0);
1059 INIT_LIST_HEAD(&matched_nets);
1060 INIT_LIST_HEAD(¤t_nets);
1066 while (!list_empty(&raw_entries)) {
1067 tb = list_entry(raw_entries.next, struct lnet_text_buf,
1070 strncpy(source, tb->ltb_text, sizeof(source));
1071 source[sizeof(source) - 1] = '\0';
1073 /* replace ltb_text with the network(s) add on match */
1074 rc = lnet_match_network_tokens(tb->ltb_text, ipaddrs, nip);
1078 list_del(&tb->ltb_list);
1080 if (rc == 0) { /* no match */
1081 lnet_free_text_buf(tb);
1085 /* split into separate networks */
1086 INIT_LIST_HEAD(¤t_nets);
1087 list_add(&tb->ltb_list, ¤t_nets);
1088 rc = lnet_splitnets(source, ¤t_nets);
1093 list_for_each(t, ¤t_nets) {
1094 tb = list_entry(t, struct lnet_text_buf, ltb_list);
1095 net1 = lnet_netspec2net(tb->ltb_text);
1096 LASSERT(net1 != LNET_NIDNET(LNET_NID_ANY));
1098 list_for_each(t2, &matched_nets) {
1099 tb2 = list_entry(t2, struct lnet_text_buf,
1101 net2 = lnet_netspec2net(tb2->ltb_text);
1102 LASSERT(net2 != LNET_NIDNET(LNET_NID_ANY));
1115 lnet_free_text_bufs(¤t_nets);
1119 list_for_each_safe(t, t2, ¤t_nets) {
1120 tb = list_entry(t, struct lnet_text_buf, ltb_list);
1122 list_del(&tb->ltb_list);
1123 list_add_tail(&tb->ltb_list, &matched_nets);
1125 len += snprintf(networks + len, sizeof(networks) - len,
1126 "%s%s", (len == 0) ? "" : ",",
1129 if (len >= sizeof(networks)) {
1130 CERROR("Too many matched networks\n");
1140 lnet_free_text_bufs(&raw_entries);
1141 lnet_free_text_bufs(&matched_nets);
1142 lnet_free_text_bufs(¤t_nets);
1143 LASSERT (lnet_tbnob == 0);
1148 *networksp = networks;
1154 lnet_ipaddr_free_enumeration(__u32 *ipaddrs, int nip)
1156 LIBCFS_FREE(ipaddrs, nip * sizeof(*ipaddrs));
1160 lnet_ipaddr_enumerate (__u32 **ipaddrsp)
1168 int nif = libcfs_ipif_enumerate(&ifnames);
1175 LIBCFS_ALLOC(ipaddrs, nif * sizeof(*ipaddrs));
1176 if (ipaddrs == NULL) {
1177 CERROR("Can't allocate ipaddrs[%d]\n", nif);
1178 libcfs_ipif_free_enumeration(ifnames, nif);
1182 for (i = nip = 0; i < nif; i++) {
1183 if (!strcmp(ifnames[i], "lo"))
1186 rc = libcfs_ipif_query(ifnames[i], &up,
1187 &ipaddrs[nip], &netmask);
1189 CWARN("Can't query interface %s: %d\n",
1195 CWARN("Ignoring interface %s: it's down\n",
1203 libcfs_ipif_free_enumeration(ifnames, nif);
1206 *ipaddrsp = ipaddrs;
1209 LIBCFS_ALLOC(ipaddrs2, nip * sizeof(*ipaddrs2));
1210 if (ipaddrs2 == NULL) {
1211 CERROR("Can't allocate ipaddrs[%d]\n", nip);
1214 memcpy(ipaddrs2, ipaddrs,
1215 nip * sizeof(*ipaddrs));
1216 *ipaddrsp = ipaddrs2;
1220 lnet_ipaddr_free_enumeration(ipaddrs, nif);
1226 lnet_parse_ip2nets (char **networksp, char *ip2nets)
1228 __u32 *ipaddrs = NULL;
1229 int nip = lnet_ipaddr_enumerate(&ipaddrs);
1233 LCONSOLE_ERROR_MSG(0x117, "Error %d enumerating local IP "
1234 "interfaces for ip2nets to match\n", nip);
1239 LCONSOLE_ERROR_MSG(0x118, "No local IP interfaces "
1240 "for ip2nets to match\n");
1244 rc = lnet_match_networks(networksp, ip2nets, ipaddrs, nip);
1245 lnet_ipaddr_free_enumeration(ipaddrs, nip);
1248 LCONSOLE_ERROR_MSG(0x119, "Error %d parsing ip2nets\n", rc);
1253 LCONSOLE_ERROR_MSG(0x11a, "ip2nets does not match "
1254 "any local IP interfaces\n");
1262 lnet_set_ip_niaddr (lnet_ni_t *ni)
1264 __u32 net = LNET_NIDNET(ni->ni_nid);
1273 /* Convenience for LNDs that use the IP address of a local interface as
1274 * the local address part of their NID */
1276 if (ni->ni_interfaces[0] != NULL) {
1278 CLASSERT (LNET_MAX_INTERFACES > 1);
1280 if (ni->ni_interfaces[1] != NULL) {
1281 CERROR("Net %s doesn't support multiple interfaces\n",
1282 libcfs_net2str(net));
1286 rc = libcfs_ipif_query(ni->ni_interfaces[0],
1287 &up, &ip, &netmask);
1289 CERROR("Net %s can't query interface %s: %d\n",
1290 libcfs_net2str(net), ni->ni_interfaces[0], rc);
1295 CERROR("Net %s can't use interface %s: it's down\n",
1296 libcfs_net2str(net), ni->ni_interfaces[0]);
1300 ni->ni_nid = LNET_MKNID(net, ip);
1304 n = libcfs_ipif_enumerate(&names);
1306 CERROR("Net %s can't enumerate interfaces: %d\n",
1307 libcfs_net2str(net), n);
1311 for (i = 0; i < n; i++) {
1312 if (!strcmp(names[i], "lo")) /* skip the loopback IF */
1315 rc = libcfs_ipif_query(names[i], &up, &ip, &netmask);
1318 CWARN("Net %s can't query interface %s: %d\n",
1319 libcfs_net2str(net), names[i], rc);
1324 CWARN("Net %s ignoring interface %s (down)\n",
1325 libcfs_net2str(net), names[i]);
1329 libcfs_ipif_free_enumeration(names, n);
1330 ni->ni_nid = LNET_MKNID(net, ip);
1334 CERROR("Net %s can't find any interfaces\n", libcfs_net2str(net));
1335 libcfs_ipif_free_enumeration(names, n);
1338 EXPORT_SYMBOL(lnet_set_ip_niaddr);