1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
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 typedef struct { /* tmp struct for parsing routes */
41 struct list_head ltb_list; /* stash on lists */
42 int ltb_size; /* allocated size */
43 char ltb_text[0]; /* text buffer */
46 static int lnet_tbnob = 0; /* track text buf allocation */
47 #define LNET_MAX_TEXTBUF_NOB (64<<10) /* bound allocation */
48 #define LNET_SINGLE_TEXTBUF_NOB (4<<10)
51 struct list_head lre_list; /* stash in a list */
52 int lre_min; /* min value */
53 int lre_max; /* max value */
54 int lre_stride; /* stride */
57 static int lnet_re_alloc = 0; /* track expr allocation */
60 lnet_syntax(char *name, char *str, int offset, int width)
62 static char dots[LNET_SINGLE_TEXTBUF_NOB];
63 static char dashes[LNET_SINGLE_TEXTBUF_NOB];
65 memset(dots, '.', sizeof(dots));
66 dots[sizeof(dots)-1] = 0;
67 memset(dashes, '-', sizeof(dashes));
68 dashes[sizeof(dashes)-1] = 0;
70 LCONSOLE_ERROR_MSG(0x10f, "Error parsing '%s=\"%s\"'\n", name, str);
71 LCONSOLE_ERROR_MSG(0x110, "here...........%.*s..%.*s|%.*s|\n",
72 (int)strlen(name), dots, offset, dots,
73 (width < 1) ? 0 : width - 1, dashes);
90 lnet_trimwhite(char *str)
94 while (cfs_iswhite(*str))
97 end = str + strlen(str);
99 if (!cfs_iswhite(end[-1]))
109 lnet_net_unique(__u32 net, struct list_head *nilist)
111 struct list_head *tmp;
114 list_for_each (tmp, nilist) {
115 ni = list_entry(tmp, lnet_ni_t, ni_list);
117 if (LNET_NIDNET(ni->ni_nid) == net)
125 lnet_new_ni(__u32 net, struct list_head *nilist)
129 if (!lnet_net_unique(net, nilist)) {
130 LCONSOLE_ERROR_MSG(0x111, "Duplicate network specified: %s\n",
131 libcfs_net2str(net));
135 LIBCFS_ALLOC(ni, sizeof(*ni));
137 CERROR("Out of memory creating network %s\n",
138 libcfs_net2str(net));
142 /* zero counters/flags, NULL pointers... */
143 memset(ni, 0, sizeof(*ni));
145 /* LND will fill in the address part of the NID */
146 ni->ni_nid = LNET_MKNID(net, 0);
147 CFS_INIT_LIST_HEAD(&ni->ni_txq);
149 list_add_tail(&ni->ni_list, nilist);
154 lnet_parse_networks(struct list_head *nilist, char *networks)
156 int tokensize = strlen(networks) + 1;
163 if (strlen(networks) > LNET_SINGLE_TEXTBUF_NOB) {
164 /* _WAY_ conservative */
165 LCONSOLE_ERROR_MSG(0x112, "Can't parse networks: string too "
170 LIBCFS_ALLOC(tokens, tokensize);
171 if (tokens == NULL) {
172 CERROR("Can't allocate net tokens\n");
176 the_lnet.ln_network_tokens = tokens;
177 the_lnet.ln_network_tokens_nob = tokensize;
178 memcpy (tokens, networks, tokensize);
181 /* Add in the loopback network */
182 ni = lnet_new_ni(LNET_MKNET(LOLND, 0), nilist);
186 while (str != NULL && *str != 0) {
187 char *comma = strchr(str, ',');
188 char *bracket = strchr(str, '(');
192 /* NB we don't check interface conflicts here; it's the LNDs
193 * responsibility (if it cares at all) */
195 if (bracket == NULL ||
196 (comma != NULL && comma < bracket)) {
198 /* no interface list specified */
202 net = libcfs_str2net(lnet_trimwhite(str));
204 if (net == LNET_NIDNET(LNET_NID_ANY)) {
205 lnet_syntax("networks", networks,
206 (int)(str - tokens), strlen(str));
207 LCONSOLE_ERROR_MSG(0x113, "Unrecognised network"
212 if (LNET_NETTYP(net) != LOLND && /* loopback is implicit */
213 lnet_new_ni(net, nilist) == NULL)
221 net = libcfs_str2net(lnet_trimwhite(str));
222 if (net == LNET_NIDNET(LNET_NID_ANY)) {
223 lnet_syntax("networks", networks,
224 (int)(str - tokens), strlen(str));
229 ni = lnet_new_ni(net, nilist);
236 bracket = strchr(iface, ')');
237 if (bracket == NULL) {
238 lnet_syntax("networks", networks,
239 (int)(iface - tokens), strlen(iface));
245 comma = strchr(iface, ',');
249 iface = lnet_trimwhite(iface);
251 lnet_syntax("networks", networks,
252 (int)(iface - tokens), strlen(iface));
256 if (niface == LNET_MAX_INTERFACES) {
257 LCONSOLE_ERROR_MSG(0x115, "Too many interfaces "
259 libcfs_net2str(net));
263 ni->ni_interfaces[niface++] = iface;
265 } while (iface != NULL);
268 comma = strchr(bracket + 1, ',');
271 str = lnet_trimwhite(str);
273 lnet_syntax("networks", networks,
274 (int)(str - tokens), strlen(str));
281 str = lnet_trimwhite(str);
283 lnet_syntax("networks", networks,
284 (int)(str - tokens), strlen(str));
289 LASSERT (!list_empty(nilist));
293 while (!list_empty(nilist)) {
294 ni = list_entry(nilist->next, lnet_ni_t, ni_list);
296 list_del(&ni->ni_list);
297 LIBCFS_FREE(ni, sizeof(*ni));
299 LIBCFS_FREE(tokens, tokensize);
300 the_lnet.ln_network_tokens = NULL;
306 lnet_new_text_buf (int str_len)
308 lnet_text_buf_t *ltb;
311 /* NB allocate space for the terminating 0 */
312 nob = offsetof(lnet_text_buf_t, ltb_text[str_len + 1]);
313 if (nob > LNET_SINGLE_TEXTBUF_NOB) {
314 /* _way_ conservative for "route net gateway..." */
315 CERROR("text buffer too big\n");
319 if (lnet_tbnob + nob > LNET_MAX_TEXTBUF_NOB) {
320 CERROR("Too many text buffers\n");
324 LIBCFS_ALLOC(ltb, nob);
329 ltb->ltb_text[0] = 0;
335 lnet_free_text_buf (lnet_text_buf_t *ltb)
337 lnet_tbnob -= ltb->ltb_size;
338 LIBCFS_FREE(ltb, ltb->ltb_size);
342 lnet_free_text_bufs(struct list_head *tbs)
344 lnet_text_buf_t *ltb;
346 while (!list_empty(tbs)) {
347 ltb = list_entry(tbs->next, lnet_text_buf_t, ltb_list);
349 list_del(<b->ltb_list);
350 lnet_free_text_buf(ltb);
355 lnet_print_text_bufs(struct list_head *tbs)
357 struct list_head *tmp;
358 lnet_text_buf_t *ltb;
360 list_for_each (tmp, tbs) {
361 ltb = list_entry(tmp, lnet_text_buf_t, ltb_list);
363 CDEBUG(D_WARNING, "%s\n", ltb->ltb_text);
366 CDEBUG(D_WARNING, "%d allocated\n", lnet_tbnob);
370 lnet_str2tbs_sep (struct list_head *tbs, char *str)
372 struct list_head pending;
376 lnet_text_buf_t *ltb;
378 CFS_INIT_LIST_HEAD(&pending);
380 /* Split 'str' into separate commands */
382 /* skip leading whitespace */
383 while (cfs_iswhite(*str))
386 /* scan for separator or comment */
387 for (sep = str; *sep != 0; sep++)
388 if (lnet_issep(*sep) || *sep == '#')
391 nob = (int)(sep - str);
393 ltb = lnet_new_text_buf(nob);
395 lnet_free_text_bufs(&pending);
399 for (i = 0; i < nob; i++)
400 if (cfs_iswhite(str[i]))
401 ltb->ltb_text[i] = ' ';
403 ltb->ltb_text[i] = str[i];
405 ltb->ltb_text[nob] = 0;
407 list_add_tail(<b->ltb_list, &pending);
411 /* scan for separator */
414 } while (*sep != 0 && !lnet_issep(*sep));
423 list_splice(&pending, tbs->prev);
428 lnet_expand1tb (struct list_head *list,
429 char *str, char *sep1, char *sep2,
430 char *item, int itemlen)
432 int len1 = (int)(sep1 - str);
433 int len2 = strlen(sep2 + 1);
434 lnet_text_buf_t *ltb;
436 LASSERT (*sep1 == '[');
437 LASSERT (*sep2 == ']');
439 ltb = lnet_new_text_buf(len1 + itemlen + len2);
443 memcpy(ltb->ltb_text, str, len1);
444 memcpy(<b->ltb_text[len1], item, itemlen);
445 memcpy(<b->ltb_text[len1+itemlen], sep2 + 1, len2);
446 ltb->ltb_text[len1 + itemlen + len2] = 0;
448 list_add_tail(<b->ltb_list, list);
453 lnet_str2tbs_expand (struct list_head *tbs, char *str)
456 struct list_head pending;
468 CFS_INIT_LIST_HEAD(&pending);
470 sep = strchr(str, '[');
471 if (sep == NULL) /* nothing to expand */
474 sep2 = strchr(sep, ']');
478 for (parsed = sep; parsed < sep2; parsed = enditem) {
481 while (enditem < sep2 && *enditem != ',')
484 if (enditem == parsed) /* no empty items */
487 if (sscanf(parsed, "%d-%d/%d%n", &lo, &hi, &stride, &scanned) < 3) {
489 if (sscanf(parsed, "%d-%d%n", &lo, &hi, &scanned) < 2) {
491 /* simple string enumeration */
492 if (lnet_expand1tb(&pending, str, sep, sep2,
493 parsed, (int)(enditem - parsed)) != 0)
502 /* range expansion */
504 if (enditem != parsed + scanned) /* no trailing junk */
507 if (hi < 0 || lo < 0 || stride < 0 || hi < lo ||
508 (hi - lo) % stride != 0)
511 for (i = lo; i <= hi; i += stride) {
513 snprintf(num, sizeof(num), "%d", i);
515 if (nob + 1 == sizeof(num))
518 if (lnet_expand1tb(&pending, str, sep, sep2,
524 list_splice(&pending, tbs->prev);
528 lnet_free_text_bufs(&pending);
533 lnet_parse_hops (char *str, unsigned int *hops)
535 int len = strlen(str);
538 return (sscanf(str, "%u%n", hops, &nob) >= 1 &&
540 *hops > 0 && *hops < 256);
545 lnet_parse_route (char *str, int *im_a_router)
547 /* static scratch buffer OK (single threaded) */
548 static char cmd[LNET_SINGLE_TEXTBUF_NOB];
550 struct list_head nets;
551 struct list_head gateways;
552 struct list_head *tmp1;
553 struct list_head *tmp2;
556 lnet_text_buf_t *ltb;
565 CFS_INIT_LIST_HEAD(&gateways);
566 CFS_INIT_LIST_HEAD(&nets);
568 /* save a copy of the string for error messages */
569 strncpy(cmd, str, sizeof(cmd) - 1);
570 cmd[sizeof(cmd) - 1] = 0;
574 /* scan for token start */
575 while (cfs_iswhite(*sep))
578 if (ntokens < (got_hops ? 3 : 2))
586 /* scan for token end */
587 while (*sep != 0 && !cfs_iswhite(*sep))
593 tmp2 = &nets; /* expanding nets */
594 } else if (ntokens == 2 &&
595 lnet_parse_hops(token, &hops)) {
596 got_hops = 1; /* got a hop count */
599 tmp2 = &gateways; /* expanding gateways */
602 ltb = lnet_new_text_buf(strlen(token));
606 strcpy(ltb->ltb_text, token);
607 tmp1 = <b->ltb_list;
608 list_add_tail(tmp1, tmp2);
610 while (tmp1 != tmp2) {
611 ltb = list_entry(tmp1, lnet_text_buf_t, ltb_list);
613 rc = lnet_str2tbs_expand(tmp1->next, ltb->ltb_text);
619 if (rc > 0) { /* expanded! */
620 list_del(<b->ltb_list);
621 lnet_free_text_buf(ltb);
626 net = libcfs_str2net(ltb->ltb_text);
627 if (net == LNET_NIDNET(LNET_NID_ANY) ||
628 LNET_NETTYP(net) == LOLND)
631 nid = libcfs_str2nid(ltb->ltb_text);
632 if (nid == LNET_NID_ANY ||
633 LNET_NETTYP(LNET_NIDNET(nid)) == LOLND)
642 LASSERT (!list_empty(&nets));
643 LASSERT (!list_empty(&gateways));
645 list_for_each (tmp1, &nets) {
646 ltb = list_entry(tmp1, lnet_text_buf_t, ltb_list);
647 net = libcfs_str2net(ltb->ltb_text);
648 LASSERT (net != LNET_NIDNET(LNET_NID_ANY));
650 list_for_each (tmp2, &gateways) {
651 ltb = list_entry(tmp2, lnet_text_buf_t, ltb_list);
652 nid = libcfs_str2nid(ltb->ltb_text);
653 LASSERT (nid != LNET_NID_ANY);
655 if (lnet_islocalnid(nid)) {
660 rc = lnet_add_route (net, hops, nid);
662 CERROR("Can't create route "
665 libcfs_nid2str(nid));
675 lnet_syntax("routes", cmd, (int)(token - str), strlen(token));
677 lnet_free_text_bufs(&nets);
678 lnet_free_text_bufs(&gateways);
683 lnet_parse_route_tbs(struct list_head *tbs, int *im_a_router)
685 lnet_text_buf_t *ltb;
687 while (!list_empty(tbs)) {
688 ltb = list_entry(tbs->next, lnet_text_buf_t, ltb_list);
690 if (lnet_parse_route(ltb->ltb_text, im_a_router) < 0) {
691 lnet_free_text_bufs(tbs);
695 list_del(<b->ltb_list);
696 lnet_free_text_buf(ltb);
703 lnet_parse_routes (char *routes, int *im_a_router)
705 struct list_head tbs;
710 CFS_INIT_LIST_HEAD(&tbs);
712 if (lnet_str2tbs_sep(&tbs, routes) < 0) {
713 CERROR("Error parsing routes\n");
716 rc = lnet_parse_route_tbs(&tbs, im_a_router);
719 LASSERT (lnet_tbnob == 0);
724 lnet_print_range_exprs(struct list_head *exprs)
727 lnet_range_expr_t *lre;
729 list_for_each(e, exprs) {
730 lre = list_entry(exprs->next, lnet_range_expr_t, lre_list);
732 CDEBUG(D_WARNING, "%d-%d/%d\n",
733 lre->lre_min, lre->lre_max, lre->lre_stride);
736 CDEBUG(D_WARNING, "%d allocated\n", lnet_re_alloc);
740 lnet_new_range_expr(struct list_head *exprs, int min, int max, int stride)
742 lnet_range_expr_t *lre;
744 CDEBUG(D_NET, "%d-%d/%d\n", min, max, stride);
746 if (min < 0 || min > 255 || min > max || stride < 0)
749 LIBCFS_ALLOC(lre, sizeof(*lre));
757 lre->lre_stride = stride;
759 list_add(&lre->lre_list, exprs);
764 lnet_destroy_range_exprs(struct list_head *exprs)
766 lnet_range_expr_t *lre;
768 while (!list_empty(exprs)) {
769 lre = list_entry(exprs->next, lnet_range_expr_t, lre_list);
771 list_del(&lre->lre_list);
772 LIBCFS_FREE(lre, sizeof(*lre));
778 lnet_parse_range_expr(struct list_head *exprs, char *str)
780 int nob = strlen(str);
791 if (!strcmp(str, "*")) /* match all */
792 return lnet_new_range_expr(exprs, 0, 255, 1);
795 if (sscanf(str, "%u%n", &x, &n) >= 1 && n == nob) {
797 return lnet_new_range_expr(exprs, x, x, 1);
800 /* Has to be an expansion */
801 if (!(str[0] == '[' && nob > 2 && str[nob-1] == ']'))
809 /* Comma separated list of expressions... */
810 sep = strchr(str, ',');
816 if (sscanf(str, "%u%n", &x, &n) >= 1 && n == nob) {
818 rc = lnet_new_range_expr(exprs, x, x, 1);
826 if (sscanf(str, "%u-%u%n", &x, &y, &n) >= 2 && n == nob) {
828 rc = lnet_new_range_expr(exprs, x, y, 1);
835 if (sscanf(str, "%u-%u/%u%n", &x, &y, &z, &n) >= 3 && n == nob) {
837 rc = lnet_new_range_expr(exprs, x, y, z);
845 } while ((str = sep) != NULL);
851 lnet_match_network_token(char *token, __u32 *ipaddrs, int nip)
853 struct list_head exprs[4];
855 lnet_range_expr_t *re;
864 for (i = 0; i < 4; i++)
865 CFS_INIT_LIST_HEAD(&exprs[i]);
867 for (i = 0; i < 4; i++) {
870 token = strchr(token, '.');
878 rc = lnet_parse_range_expr(&exprs[i], str);
885 for (match = i = 0; !match && i < nip; i++) {
888 for (match = 1, j = 0; match && j < 4; j++) {
889 n = (ip >> (8 * (3 - j))) & 0xff;
892 list_for_each(e, &exprs[j]) {
893 re = list_entry(e, lnet_range_expr_t, lre_list);
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, struct list_head *nets)
996 lnet_text_buf_t *tb2;
1002 LASSERT (!list_empty(nets));
1003 LASSERT (nets->next == nets->prev); /* single entry */
1005 tb = 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 list_for_each(t, nets) {
1041 tb2 = 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 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 struct list_head raw_entries;
1076 struct list_head matched_nets;
1077 struct list_head current_nets;
1078 struct list_head *t;
1079 struct list_head *t2;
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 (!list_empty(&raw_entries)) {
1104 tb = list_entry(raw_entries.next, lnet_text_buf_t, ltb_list);
1106 strncpy(source, tb->ltb_text, sizeof(source)-1);
1107 source[sizeof(source)-1] = 0;
1109 /* replace ltb_text with the network(s) add on match */
1110 rc = lnet_match_network_tokens(tb->ltb_text, ipaddrs, nip);
1114 list_del(&tb->ltb_list);
1116 if (rc == 0) { /* no match */
1117 lnet_free_text_buf(tb);
1121 /* split into separate networks */
1122 CFS_INIT_LIST_HEAD(¤t_nets);
1123 list_add(&tb->ltb_list, ¤t_nets);
1124 rc = lnet_splitnets(source, ¤t_nets);
1129 list_for_each (t, ¤t_nets) {
1130 tb = list_entry(t, lnet_text_buf_t, ltb_list);
1131 net1 = lnet_netspec2net(tb->ltb_text);
1132 LASSERT (net1 != LNET_NIDNET(LNET_NID_ANY));
1134 list_for_each(t2, &matched_nets) {
1135 tb2 = list_entry(t2, lnet_text_buf_t, ltb_list);
1136 net2 = lnet_netspec2net(tb2->ltb_text);
1137 LASSERT (net2 != LNET_NIDNET(LNET_NID_ANY));
1150 lnet_free_text_bufs(¤t_nets);
1154 list_for_each_safe(t, t2, ¤t_nets) {
1155 tb = list_entry(t, lnet_text_buf_t, ltb_list);
1157 list_del(&tb->ltb_list);
1158 list_add_tail(&tb->ltb_list, &matched_nets);
1160 len += snprintf(networks + len, sizeof(networks) - len,
1161 "%s%s", (len == 0) ? "" : ",",
1164 if (len >= sizeof(networks)) {
1165 CERROR("Too many matched networks\n");
1175 lnet_free_text_bufs(&raw_entries);
1176 lnet_free_text_bufs(&matched_nets);
1177 lnet_free_text_bufs(¤t_nets);
1178 LASSERT (lnet_tbnob == 0);
1183 *networksp = networks;
1189 lnet_ipaddr_free_enumeration(__u32 *ipaddrs, int nip)
1191 LIBCFS_FREE(ipaddrs, nip * sizeof(*ipaddrs));
1195 lnet_ipaddr_enumerate (__u32 **ipaddrsp)
1203 int nif = libcfs_ipif_enumerate(&ifnames);
1210 LIBCFS_ALLOC(ipaddrs, nif * sizeof(*ipaddrs));
1211 if (ipaddrs == NULL) {
1212 CERROR("Can't allocate ipaddrs[%d]\n", nif);
1213 libcfs_ipif_free_enumeration(ifnames, nif);
1217 for (i = nip = 0; i < nif; i++) {
1218 if (!strcmp(ifnames[i], "lo"))
1221 rc = libcfs_ipif_query(ifnames[i], &up,
1222 &ipaddrs[nip], &netmask);
1224 CWARN("Can't query interface %s: %d\n",
1230 CWARN("Ignoring interface %s: it's down\n",
1238 libcfs_ipif_free_enumeration(ifnames, nif);
1241 *ipaddrsp = ipaddrs;
1244 LIBCFS_ALLOC(ipaddrs2, nip * sizeof(*ipaddrs2));
1245 if (ipaddrs2 == NULL) {
1246 CERROR("Can't allocate ipaddrs[%d]\n", nip);
1249 memcpy(ipaddrs2, ipaddrs,
1250 nip * sizeof(*ipaddrs));
1251 *ipaddrsp = ipaddrs2;
1255 lnet_ipaddr_free_enumeration(ipaddrs, nif);
1261 lnet_parse_ip2nets (char **networksp, char *ip2nets)
1264 int nip = lnet_ipaddr_enumerate(&ipaddrs);
1268 LCONSOLE_ERROR_MSG(0x117, "Error %d enumerating local IP "
1269 "interfaces for ip2nets to match\n", nip);
1274 LCONSOLE_ERROR_MSG(0x118, "No local IP interfaces "
1275 "for ip2nets to match\n");
1279 rc = lnet_match_networks(networksp, ip2nets, ipaddrs, nip);
1280 lnet_ipaddr_free_enumeration(ipaddrs, nip);
1283 LCONSOLE_ERROR_MSG(0x119, "Error %d parsing ip2nets\n", rc);
1288 LCONSOLE_ERROR_MSG(0x11a, "ip2nets does not match "
1289 "any local IP interfaces\n");
1297 lnet_set_ip_niaddr (lnet_ni_t *ni)
1299 __u32 net = LNET_NIDNET(ni->ni_nid);
1308 /* Convenience for LNDs that use the IP address of a local interface as
1309 * the local address part of their NID */
1311 if (ni->ni_interfaces[0] != NULL) {
1313 CLASSERT (LNET_MAX_INTERFACES > 1);
1315 if (ni->ni_interfaces[1] != NULL) {
1316 CERROR("Net %s doesn't support multiple interfaces\n",
1317 libcfs_net2str(net));
1321 rc = libcfs_ipif_query(ni->ni_interfaces[0],
1322 &up, &ip, &netmask);
1324 CERROR("Net %s can't query interface %s: %d\n",
1325 libcfs_net2str(net), ni->ni_interfaces[0], rc);
1330 CERROR("Net %s can't use interface %s: it's down\n",
1331 libcfs_net2str(net), ni->ni_interfaces[0]);
1335 ni->ni_nid = LNET_MKNID(net, ip);
1339 n = libcfs_ipif_enumerate(&names);
1341 CERROR("Net %s can't enumerate interfaces: %d\n",
1342 libcfs_net2str(net), n);
1346 for (i = 0; i < n; i++) {
1347 if (!strcmp(names[i], "lo")) /* skip the loopback IF */
1350 rc = libcfs_ipif_query(names[i], &up, &ip, &netmask);
1353 CWARN("Net %s can't query interface %s: %d\n",
1354 libcfs_net2str(net), names[i], rc);
1359 CWARN("Net %s ignoring interface %s (down)\n",
1360 libcfs_net2str(net), names[i]);
1364 libcfs_ipif_free_enumeration(names, n);
1365 ni->ni_nid = LNET_MKNID(net, ip);
1369 CERROR("Net %s can't find any interfaces\n", libcfs_net2str(net));
1370 libcfs_ipif_free_enumeration(names, n);
1373 EXPORT_SYMBOL(lnet_set_ip_niaddr);