2013-05-01 14:52:55 +02:00
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#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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| Data...
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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Type: 25 for Image Identifier
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2013-05-27 21:33:23 +02:00
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2013-05-01 14:52:55 +02:00
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Length: >= 5
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********************************************************************/
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/* */
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2013-05-27 21:33:23 +02:00
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static void capwap_imageidentifier_element_create(void* data, capwap_message_elements_handle handle, struct capwap_write_message_elements_ops* func) {
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2013-06-09 17:41:52 +02:00
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int length;
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2013-05-27 21:33:23 +02:00
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struct capwap_imageidentifier_element* element = (struct capwap_imageidentifier_element*)data;
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2013-05-01 14:52:55 +02:00
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2013-05-27 21:33:23 +02:00
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ASSERT(data != NULL);
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2013-05-01 14:52:55 +02:00
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2013-06-09 17:41:52 +02:00
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length = strlen((char*)element->name);
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ASSERT(length <= CAPWAP_IMAGEDATA_DATA_MAX_LENGTH);
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2013-05-27 21:33:23 +02:00
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func->write_u32(handle, element->vendor);
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2013-06-09 17:41:52 +02:00
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func->write_block(handle, element->name, length);
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}
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/* */
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static void capwap_imageidentifier_element_free(void* data) {
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struct capwap_imageidentifier_element* element = (struct capwap_imageidentifier_element*)data;
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ASSERT(data != NULL);
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if (element->name) {
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capwap_free(element->name);
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}
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capwap_free(data);
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2013-05-01 14:52:55 +02:00
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}
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/* */
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2013-05-27 21:33:23 +02:00
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static void* capwap_imageidentifier_element_parsing(capwap_message_elements_handle handle, struct capwap_read_message_elements_ops* func) {
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unsigned short length;
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2013-05-01 14:52:55 +02:00
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struct capwap_imageidentifier_element* data;
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2013-05-27 21:33:23 +02:00
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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 < 5) {
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2013-06-09 17:41:52 +02:00
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capwap_logging_debug("Invalid Image Indentifier element: underbuffer");
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2013-05-27 21:33:23 +02:00
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return NULL;
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}
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length -= 4;
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if (length > CAPWAP_IMAGEIDENTIFIER_MAXLENGTH) {
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2013-06-09 17:41:52 +02:00
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capwap_logging_debug("Invalid Image Indentifier element: invalid length");
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2013-05-01 14:52:55 +02:00
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return NULL;
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}
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2013-08-18 19:07:19 +02:00
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/* Retrieve data */
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2013-05-01 14:52:55 +02:00
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data = (struct capwap_imageidentifier_element*)capwap_alloc(sizeof(struct capwap_imageidentifier_element));
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2013-06-09 17:41:52 +02:00
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data->name = (uint8_t*)capwap_alloc(length + 1);
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2013-05-27 21:33:23 +02:00
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func->read_u32(handle, &data->vendor);
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func->read_block(handle, data->name, length);
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2013-06-09 17:41:52 +02:00
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data->name[length] = 0;
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2013-05-27 21:33:23 +02:00
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2013-05-01 14:52:55 +02:00
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return data;
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}
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2013-05-27 21:33:23 +02:00
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/* */
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struct capwap_message_elements_ops capwap_element_imageidentifier_ops = {
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.create_message_element = capwap_imageidentifier_element_create,
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.parsing_message_element = capwap_imageidentifier_element_parsing,
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.free_parsed_message_element = capwap_imageidentifier_element_free
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};
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