104 lines
3.0 KiB
C
104 lines
3.0 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: 2 for AC IPv4 List
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Length: >= 4
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********************************************************************/
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struct capwap_acipv4list_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_acipv4list_element_create(void* data, unsigned long datalength) {
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int i;
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int items;
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unsigned short sizeitems;
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struct capwap_message_element* element;
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capwap_acipv4list_element_array* dataarray = (capwap_acipv4list_element_array*)data;
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struct capwap_acipv4list_raw_element* dataraw;
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ASSERT(data != NULL);
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ASSERT(datalength == sizeof(capwap_acipv4list_element_array));
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items = min(dataarray->count, CAPWAP_ACIPV4LIST_MAX_ELEMENTS);
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/* Alloc block of memory */
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sizeitems = sizeof(struct capwap_acipv4list_raw_element) * items;
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element = capwap_alloc(sizeof(struct capwap_message_element) + sizeitems);
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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) + sizeitems);
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element->type = htons(CAPWAP_ELEMENT_ACIPV4LIST);
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element->length = htons(sizeitems);
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dataraw = (struct capwap_acipv4list_raw_element*)element->data;
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for (i = 0; i < items; i++) {
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struct capwap_acipv4list_element* dataelement = (struct capwap_acipv4list_element*)capwap_array_get_item_pointer(dataarray, i);
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dataraw->address = dataelement->address.s_addr;
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/* Next raw item */
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dataraw++;
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}
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return element;
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}
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/* */
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int capwap_acipv4list_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_acipv4list_element_parsing(struct capwap_message_element* element) {
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int i;
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int items;
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unsigned short length;
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capwap_acipv4list_element_array* data;
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struct capwap_acipv4list_raw_element* dataraw;
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ASSERT(element);
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ASSERT(ntohs(element->type) == CAPWAP_ELEMENT_ACIPV4LIST);
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length = ntohs(element->length);
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if ((length > 0) && ((length % sizeof(struct capwap_acipv4list_raw_element)) != 0)) {
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return NULL;
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}
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/* */
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items = length / sizeof(struct capwap_acipv4list_raw_element);
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data = (capwap_acipv4list_element_array*)capwap_array_create(sizeof(struct capwap_acipv4list_element), items);
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/* */
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dataraw = (struct capwap_acipv4list_raw_element*)element->data;
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for (i = 0; i < items; i++) {
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struct capwap_acipv4list_element* dataelement = (struct capwap_acipv4list_element*)capwap_array_get_item_pointer(data, i);
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dataelement->address.s_addr = dataraw->address;
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/* Next raw item */
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dataraw++;
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}
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return data;
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}
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/* */
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void capwap_acipv4list_element_free(void* data) {
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ASSERT(data != NULL);
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capwap_array_free((capwap_acipv4list_element_array*)data);
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}
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