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Diffstat (limited to 'radius/dict.c')
| -rw-r--r-- | radius/dict.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/radius/dict.c b/radius/dict.c new file mode 100644 index 0000000..fc04ee2 --- /dev/null +++ b/radius/dict.c @@ -0,0 +1,172 @@ +/* +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 "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 -RSE_INVAL; + + if (!vendor) { + if (attr > 256) return -RSE_INVAL; + + } else if (vendor > (1 << 24)) { + return -RSE_INVAL; + } + + memset(da, 0, sizeof(*da)); + da->attr = attr; + da->flags.unknown = 1; + da->type = RS_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; +} |