1436fc9e5f
The struct is already conveys the scope of the operations, repeating it in the name of ops again is redundant and bloats the resulting source code. Rename the opt to shorter versions.
114 lines
3.9 KiB
C
114 lines
3.9 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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| Data Type | Data Mode | Data Length |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Data ....
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+-+-+-+-+-+-+-+-+
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Type: 13 for Data Transfer Data
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Length: >= 5
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********************************************************************/
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/* */
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static void capwap_datatransferdata_element_create(void* data, capwap_message_elements_handle handle, struct capwap_write_message_elements_ops* func) {
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struct capwap_datatransferdata_element* element = (struct capwap_datatransferdata_element*)data;
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ASSERT(data != NULL);
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ASSERT((element->type == CAPWAP_DATATRANSFERDATA_TYPE_DATA_IS_INCLUDED) || (element->type == CAPWAP_DATATRANSFERDATA_TYPE_DATA_EOF) || (element->type == CAPWAP_DATATRANSFERDATA_TYPE_ERROR));
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ASSERT((element->mode == CAPWAP_DATATRANSFERDATA_MODE_CRASH_DUMP) || (element->mode == CAPWAP_DATATRANSFERDATA_MODE_MEMORY_DUMP));
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ASSERT(element->length > 0);
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func->write_u8(handle, element->type);
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func->write_u8(handle, element->mode);
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func->write_u16(handle, element->length);
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func->write_block(handle, element->data, element->length);
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}
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/* */
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static void* capwap_datatransferdata_element_clone(void* data) {
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struct capwap_datatransferdata_element* cloneelement;
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ASSERT(data != NULL);
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cloneelement = capwap_clone(data, sizeof(struct capwap_datatransferdata_element));
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if (cloneelement->length > 0) {
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cloneelement->data = capwap_clone(((struct capwap_datatransferdata_element*)data)->data, cloneelement->length);
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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_datatransferdata_element_free(void* data) {
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struct capwap_datatransferdata_element* element = (struct capwap_datatransferdata_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* capwap_datatransferdata_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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struct capwap_datatransferdata_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 < 5) {
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capwap_logging_debug("Invalid Data Transfer Data element: underbuffer");
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return NULL;
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}
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length -= 4;
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/* */
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data = (struct capwap_datatransferdata_element*)capwap_alloc(sizeof(struct capwap_datatransferdata_element));
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memset(data, 0, sizeof(struct capwap_datatransferdata_element));
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/* Retrieve data */
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func->read_u8(handle, &data->type);
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func->read_u8(handle, &data->mode);
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func->read_u16(handle, &data->length);
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if ((data->type != CAPWAP_DATATRANSFERDATA_TYPE_DATA_IS_INCLUDED) && (data->type != CAPWAP_DATATRANSFERDATA_TYPE_DATA_EOF) && (data->type != CAPWAP_DATATRANSFERDATA_TYPE_ERROR)) {
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capwap_datatransferdata_element_free((void*)data);
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capwap_logging_debug("Invalid Data Transfer Data element: invalid type");
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return NULL;
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} else if ((data->mode != CAPWAP_DATATRANSFERDATA_MODE_CRASH_DUMP) && (data->mode != CAPWAP_DATATRANSFERDATA_MODE_MEMORY_DUMP)) {
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capwap_datatransferdata_element_free((void*)data);
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capwap_logging_debug("Invalid Data Transfer Data element: invalid mode");
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return NULL;
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} else if (length != data->length) {
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capwap_datatransferdata_element_free((void*)data);
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capwap_logging_debug("Invalid Data Transfer Data element: invalid length");
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return NULL;
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}
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data->data = (uint8_t*)capwap_alloc(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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struct capwap_message_elements_ops capwap_element_datatransferdata_ops = {
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.create = capwap_datatransferdata_element_create,
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.parse = capwap_datatransferdata_element_parsing,
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.clone = capwap_datatransferdata_element_clone,
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.free = capwap_datatransferdata_element_free
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};
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