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Diffstat (limited to 'lib/radius/valuepair.c')
| -rw-r--r-- | lib/radius/valuepair.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/lib/radius/valuepair.c b/lib/radius/valuepair.c new file mode 100644 index 0000000..6277f7d --- /dev/null +++ b/lib/radius/valuepair.c @@ -0,0 +1,191 @@ +/* +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. + */ + +/** \file valuepair.c + * \brief Functions to manipulate C structure versions of RADIUS attributes. + */ + +#include "client.h" + +void nr_vp_free(VALUE_PAIR **head) +{ + VALUE_PAIR *next, *vp; + + for (vp = *head; vp != NULL; vp = next) { + next = vp->next; + if (vp->da->flags.encrypt) { + memset(vp, 0, sizeof(vp)); + } + free(vp); + } + + *head = NULL; +} + + +VALUE_PAIR *nr_vp_init(VALUE_PAIR *vp, const DICT_ATTR *da) +{ + memset(vp, 0, sizeof(*vp)); + + vp->da = da; + vp->length = da->flags.length; + + return vp; +} + + +VALUE_PAIR *nr_vp_alloc(const DICT_ATTR *da) +{ + VALUE_PAIR *vp = NULL; + + if (!da) { + nr_strerror_printf("Unknown attribute"); + return NULL; + } + + vp = malloc(sizeof(*vp)); + if (!vp) { + nr_strerror_printf("Out of memory"); + return NULL; + } + + return nr_vp_init(vp, da); +} + +VALUE_PAIR *nr_vp_alloc_raw(unsigned int attr, unsigned int vendor) +{ + VALUE_PAIR *vp = NULL; + DICT_ATTR *da; + + vp = malloc(sizeof(*vp) + sizeof(*da) + 64); + if (!vp) { + nr_strerror_printf("Out of memory"); + return NULL; + } + memset(vp, 0, sizeof(*vp)); + + da = (DICT_ATTR *) (vp + 1); + + if (nr_dict_attr_2struct(da, attr, vendor, (char *) (da + 1), 64) < 0) { + free(vp); + return NULL; + } + + vp->da = da; + + return vp; +} + +int nr_vp_set_data(VALUE_PAIR *vp, const void *data, size_t sizeof_data) +{ + int rcode = 1; /* OK */ + + if (!vp || !data || (sizeof_data == 0)) return -RSE_INVAL; + + switch (vp->da->type) { + case RS_TYPE_BYTE: + vp->vp_integer = *(const uint8_t *) data; + break; + + case RS_TYPE_SHORT: + vp->vp_integer = *(const uint16_t *) data; + break; + + case RS_TYPE_INTEGER: + case RS_TYPE_DATE: + case RS_TYPE_IPADDR: + vp->vp_integer = *(const uint32_t *) data; + break; + + case RS_TYPE_STRING: + if (sizeof_data >= sizeof(vp->vp_strvalue)) { + sizeof_data = sizeof(vp->vp_strvalue) - 1; + rcode = 0; /* truncated */ + } + + memcpy(vp->vp_strvalue, (const char *) data, sizeof_data); + vp->vp_strvalue[sizeof_data + 1] = '\0'; + vp->length = sizeof_data; + break; + + case RS_TYPE_OCTETS: + if (sizeof_data > sizeof(vp->vp_octets)) { + sizeof_data = sizeof(vp->vp_octets); + rcode = 0; /* truncated */ + } + memcpy(vp->vp_octets, data, sizeof_data); + vp->length = sizeof_data; + break; + + default: + return -RSE_ATTR_TYPE_UNKNOWN; + } + + return rcode; +} + +VALUE_PAIR *nr_vp_create(int attr, int vendor, const void *data, size_t data_len) +{ + const DICT_ATTR *da; + VALUE_PAIR *vp; + + da = nr_dict_attr_byvalue(attr, vendor); + if (!da) return NULL; + + vp = nr_vp_alloc(da); + if (!vp) return NULL; + + if (nr_vp_set_data(vp, data, data_len) < 0) { + nr_vp_free(&vp); + return NULL; + } + + return vp; +} + +void nr_vps_append(VALUE_PAIR **head, VALUE_PAIR *tail) +{ + if (!tail) return; + + while (*head) { + head = &((*head)->next); + } + + *head = tail; +} + +VALUE_PAIR *nr_vps_find(VALUE_PAIR *head, + unsigned int attr, unsigned int vendor) +{ + while (head) { + if ((head->da->attr == attr) && + (head->da->vendor == vendor)) return head; + head = head->next; + } + + return NULL; +} |