84 lines
2.4 KiB
C
84 lines
2.4 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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| IP Address |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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Type: 30 for CAPWAP Local IPv4 Address
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Length: 4
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********************************************************************/
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struct capwap_localipv4_raw_element {
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unsigned long address;
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} __attribute__((__packed__));
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/* */
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struct capwap_message_element* capwap_localipv4_element_create(void* data, unsigned long datalength) {
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struct capwap_message_element* element;
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struct capwap_localipv4_element* dataelement = (struct capwap_localipv4_element*)data;
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struct capwap_localipv4_raw_element* dataraw;
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ASSERT(data != NULL);
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ASSERT(datalength >= sizeof(struct capwap_localipv4_element));
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/* Alloc block of memory */
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element = capwap_alloc(sizeof(struct capwap_message_element) + sizeof(struct capwap_localipv4_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_localipv4_raw_element));
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element->type = htons(CAPWAP_ELEMENT_LOCALIPV4);
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element->length = htons(sizeof(struct capwap_localipv4_raw_element));
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dataraw = (struct capwap_localipv4_raw_element*)element->data;
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dataraw->address = dataelement->address.s_addr;
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return element;
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}
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/* */
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int capwap_localipv4_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_localipv4_element_parsing(struct capwap_message_element* element) {
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struct capwap_localipv4_element* data;
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struct capwap_localipv4_raw_element* dataraw;
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ASSERT(element);
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ASSERT(ntohs(element->type) == CAPWAP_ELEMENT_LOCALIPV4);
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if (ntohs(element->length) != sizeof(struct capwap_localipv4_raw_element)) {
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return NULL;
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}
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/* */
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data = (struct capwap_localipv4_element*)capwap_alloc(sizeof(struct capwap_localipv4_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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dataraw = (struct capwap_localipv4_raw_element*)element->data;
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data->address.s_addr = dataraw->address;
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return data;
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}
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/* */
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void capwap_localipv4_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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