116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
#include "capwap.h"
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#include "capwap_element.h"
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/********************************************************************
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0 1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Session ID |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Session ID |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Session ID |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Session ID |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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Type: 35 for Session ID
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Length: 16
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********************************************************************/
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struct capwap_sessionid_raw_element {
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unsigned char id[16];
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} __attribute__((__packed__));
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/* */
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struct capwap_message_element* capwap_sessionid_element_create(void* data, unsigned long datalength) {
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struct capwap_message_element* element;
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struct capwap_sessionid_raw_element* dataraw;
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struct capwap_sessionid_element* dataelement = (struct capwap_sessionid_element*)data;
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ASSERT(data != NULL);
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ASSERT(datalength == sizeof(struct capwap_sessionid_element));
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/* Alloc block of memory */
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element = capwap_alloc(sizeof(struct capwap_message_element) + sizeof(struct capwap_sessionid_element));
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if (!element) {
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capwap_outofmemory();
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}
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/* Create message element */
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memset(element, 0, sizeof(struct capwap_message_element) + sizeof(struct capwap_sessionid_element));
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element->type = htons(CAPWAP_ELEMENT_SESSIONID);
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element->length = htons(sizeof(struct capwap_sessionid_element));
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dataraw = (struct capwap_sessionid_raw_element*)element->data;
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memcpy(&dataraw->id[0], &dataelement->id[0], sizeof(unsigned char) * 16);
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return element;
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}
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/* */
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int capwap_sessionid_element_validate(struct capwap_message_element* element) {
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/* TODO */
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return 1;
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}
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/* */
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void* capwap_sessionid_element_parsing(struct capwap_message_element* element) {
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struct capwap_sessionid_element* data;
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struct capwap_sessionid_raw_element* dataraw;
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ASSERT(element);
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ASSERT(ntohs(element->type) == CAPWAP_ELEMENT_SESSIONID);
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if (ntohs(element->length) != sizeof(struct capwap_sessionid_raw_element)) {
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return NULL;
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}
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/* */
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dataraw = (struct capwap_sessionid_raw_element*)element->data;
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data = (struct capwap_sessionid_element*)capwap_alloc(sizeof(struct capwap_sessionid_element));
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if (!data) {
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capwap_outofmemory();
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}
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/* */
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memcpy(&data->id[0], &dataraw->id[0], sizeof(unsigned char) * 16);
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return data;
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}
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/* */
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void capwap_sessionid_element_free(void* data) {
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ASSERT(data != NULL);
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capwap_free(data);
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}
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/* */
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void capwap_sessionid_generate(struct capwap_sessionid_element* session) {
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int i;
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ASSERT(session != NULL);
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for (i = 0; i < 16; i++) {
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session->id[i] = (unsigned char)capwap_get_rand(256);
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}
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}
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/* */
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void capwap_sessionid_printf(struct capwap_sessionid_element* session, char* string) {
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int i;
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char* pos = string;
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ASSERT(session != NULL);
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ASSERT(string != NULL);
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for (i = 0; i < 16; i++) {
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sprintf(pos, "%02x", session->id[i]);
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pos += 2;
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}
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*pos = 0;
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}
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