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-rw-r--r--lib/radius/dict.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/lib/radius/dict.c b/lib/radius/dict.c
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+++ b/lib/radius/dict.c
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+/*
+Copyright (c) 2011, Network RADIUS SARL
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ * Neither the name of the <organization> nor the
+ names of its contributors may be used to endorse or promote products
+ derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <networkradius-devel/client.h>
+#include <ctype.h>
+
+/** \file dict.c
+ * \brief Functions for name to number, and number to name mappings.
+ */
+
+const DICT_ATTR *nr_dict_attr_byvalue(unsigned int attr, unsigned int vendor)
+{
+ int start, half, end;
+
+ if (!vendor && (attr > 0) && (attr < 256)) {
+ if (nr_dict_attrs[attr].name) {
+ return &nr_dict_attrs[attr];
+ }
+ return NULL;
+ }
+
+ if (!vendor) return NULL; /* no "non-protocol" attributes */
+
+ start = 256; /* first 256 entries are "standard" ones */
+ end = nr_dict_num_attrs;
+
+ do {
+ half = (start + end) / 2;
+
+ if ((nr_dict_attrs[half].vendor == vendor) &&
+ (nr_dict_attrs[half].attr == attr)) {
+ return &nr_dict_attrs[half];
+ }
+
+ if ((vendor > nr_dict_attrs[half].vendor) &&
+ (attr > nr_dict_attrs[half].attr)) {
+ start = half + 1;
+ } else {
+ end = half - 1;
+ }
+
+ } while (start <= end);
+
+ return NULL;
+}
+
+const DICT_ATTR *nr_dict_attr_byname(const char *name)
+{
+ int start, half, end;
+
+ start = 1;
+ end = nr_dict_num_names;
+
+ if (!name || !*name) return NULL;
+
+ do {
+ int rcode;
+
+ half = (start + end) / 2;
+
+ rcode = strcasecmp(name, nr_dict_attr_names[half]->name);
+ if (rcode == 0) return nr_dict_attr_names[half];
+
+ if (rcode > 0) {
+ start = half + 1;
+ } else {
+ end = half - 1;
+ }
+
+
+ } while (start <= end);
+
+ return NULL;
+}
+
+int nr_dict_attr_2struct(DICT_ATTR *da, unsigned int attr, unsigned int vendor,
+ char *buffer, size_t bufsize)
+{
+ if (!da || !buffer) return -NR_ERR_INVALID_ARG;
+
+ if (!vendor) {
+ if (attr > 256) return -NR_ERR_INVALID_ARG;
+
+ } else if (vendor > (1 << 24)) {
+ return -NR_ERR_INVALID_ARG;
+ }
+
+ memset(da, 0, sizeof(*da));
+ da->attr = attr;
+ da->flags.unknown = 1;
+ da->type = NR_TYPE_OCTETS;
+ da->vendor = vendor;
+
+ if (da->vendor) {
+ snprintf(buffer, bufsize, "Attr-26.%u.%u",
+ vendor, attr);
+ } else {
+ snprintf(buffer, bufsize, "Attr-%u", attr);
+ }
+ da->name = buffer;
+
+ return 0;
+}
+
+
+const DICT_VALUE *nr_dict_value_byattr(UNUSED unsigned int attr,
+ UNUSED unsigned int vendor,
+ UNUSED int value)
+{
+ return NULL;
+}
+
+const DICT_VALUE *nr_dict_value_byname(UNUSED unsigned int attr,
+ UNUSED unsigned int vendor,
+ UNUSED const char *name)
+{
+ return NULL;
+}
+
+int nr_dict_vendor_byname(const char *name)
+{
+ const DICT_VENDOR *dv;
+
+ if (!name || !*name) return 0;
+
+ /*
+ * O(n) lookup.
+ */
+ for (dv = &nr_dict_vendors[0]; dv->name != NULL; dv++) {
+ if (strcasecmp(dv->name, name) == 0) return dv->vendor;
+ }
+
+ return 0;
+}
+
+const DICT_VENDOR *nr_dict_vendor_byvalue(unsigned int vendor)
+{
+ const DICT_VENDOR *dv;
+
+ /*
+ * O(n) lookup.
+ */
+ for (dv = &nr_dict_vendors[0]; dv->name != NULL; dv++) {
+ if (dv->vendor == vendor) return dv;
+ }
+
+ return NULL;
+}