133 lines
3.7 KiB
C
133 lines
3.7 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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| Vendor Identifier |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Element ID | Data...
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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Type: 37 for Vendor Specific Payload
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Length: >= 7
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********************************************************************/
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/* */
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static void capwap_vendorpayload_element_create(void* data, capwap_message_elements_handle handle, struct capwap_write_message_elements_ops* func) {
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struct capwap_vendorpayload_element* element = (struct capwap_vendorpayload_element*)data;
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ASSERT(data != NULL);
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ASSERT(element->datalength > 0);
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func->write_u32(handle, element->vendorid);
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func->write_u16(handle, element->elementid);
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func->write_block(handle, element->data, element->datalength);
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}
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/* */
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static void* capwap_vendorpayload_element_clone(void* data) {
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struct capwap_vendorpayload_element* cloneelement;
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ASSERT(data != NULL);
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cloneelement = capwap_clone(data, sizeof(struct capwap_vendorpayload_element));
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if (cloneelement->datalength > 0) {
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cloneelement->data = capwap_clone(((struct capwap_vendorpayload_element*)data)->data, cloneelement->datalength);
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}
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return cloneelement;
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}
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/* */
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static void capwap_vendorpayload_element_free(void* data) {
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struct capwap_vendorpayload_element* element = (struct capwap_vendorpayload_element*)data;
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ASSERT(data != NULL);
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if (element->data) {
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capwap_free(element->data);
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}
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capwap_free(data);
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}
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/* */
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static void *
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capwap_unknown_vendorpayload_element_parsing(capwap_message_elements_handle handle,
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struct capwap_read_message_elements_ops *func,
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unsigned short length,
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uint32_t vendorid, uint16_t elementid)
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{
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/* Retrieve data */
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data = (struct capwap_vendorpayload_element*)capwap_alloc(sizeof(struct capwap_vendorpayload_element));
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data->data = (uint8_t*)capwap_alloc(length);
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data->vendorid = vendorid;
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data->elementid = elementid;
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data->datalength = length;
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func->read_block(handle, data->data, length);
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return data;
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}
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/* */
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static void *
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capwap_vendorpayload_element_parsing(capwap_message_elements_handle handle,
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struct capwap_read_message_elements_ops *func)
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{
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unsigned short length;
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uint32_t vendorid;
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uint16_t elementid;
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struct capwap_vendorpayload_element* data;
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ASSERT(handle != NULL);
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ASSERT(func != NULL);
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length = func->read_ready(handle);
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if (length < 7) {
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capwap_logging_debug("Invalid Vendor Specific Payload element: underbuffer");
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return NULL;
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}
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length -= 6;
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if (length > CAPWAP_VENDORPAYLOAD_MAXLENGTH) {
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capwap_logging_debug("Invalid Vendor Specific Payload element: overbuffer");
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return NULL;
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}
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func->read_u32(handle, &vendorid);
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func->read_u16(handle, &elementid);
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switch (vendorid) {
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case VENDOR_TRAVELPING:
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switch (elementid) {
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case VENDOR_TRAVELPING_ELEMENT_80211N_RADIO_CONF:
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case VENDOR_TRAVELPING_ELEMENT_80211N_STATION_INFO:
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default:
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data = capwap_unknown_vendorpayload_element_parsing(handle, func, length,
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vendorid, elementid);
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break;
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}
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break;
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default:
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data = capwap_unknown_vendorpayload_element_parsing(handle, func, length,
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vendorid, elementid);
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break;
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}
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return data;
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}
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/* */
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struct capwap_message_elements_ops capwap_element_vendorpayload_ops = {
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.create = capwap_vendorpayload_element_create,
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.parse = capwap_vendorpayload_element_parsing,
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.clone = capwap_vendorpayload_element_clone,
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.free = capwap_vendorpayload_element_free
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};
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