78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
#include "capwap.h"
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#include "capwap_element.h"
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/********************************************************************
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0
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0 1 2 3 4 5 6 7
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+-+-+-+-+-+-+-+-+
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| Transport |
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+-+-+-+-+-+-+-+-+
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Type: 51 for CAPWAP Transport Protocol
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Length: 1
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********************************************************************/
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struct capwap_transport_raw_element {
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char type;
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} __attribute__((__packed__));
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/* */
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struct capwap_message_element* capwap_transport_element_create(void* data, unsigned long datalength) {
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struct capwap_message_element* element;
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ASSERT(data != NULL);
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ASSERT(datalength == sizeof(struct capwap_transport_element));
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/* Alloc block of memory */
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element = capwap_alloc(sizeof(struct capwap_message_element) + sizeof(struct capwap_transport_raw_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_transport_raw_element));
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element->type = htons(CAPWAP_ELEMENT_TRANSPORT);
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element->length = htons(sizeof(struct capwap_transport_raw_element));
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((struct capwap_transport_raw_element*)element->data)->type = ((struct capwap_transport_element*)data)->type;
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return element;
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}
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/* */
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int capwap_transport_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_transport_element_parsing(struct capwap_message_element* element) {
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struct capwap_transport_element* data;
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ASSERT(element);
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ASSERT(ntohs(element->type) == CAPWAP_ELEMENT_TRANSPORT);
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if (ntohs(element->length) != sizeof(struct capwap_transport_raw_element)) {
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return NULL;
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}
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/* */
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data = (struct capwap_transport_element*)capwap_alloc(sizeof(struct capwap_transport_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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data->type = ((struct capwap_transport_raw_element*)element->data)->type;
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return data;
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}
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/* */
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void capwap_transport_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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