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.
135 lines
3.9 KiB
C
135 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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| Radio ID | Length | MAC Address ...
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| VLAN Name...
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+-+-+-+-+-+-+-+-+
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Type: 8 for Add Station
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Length: >= 8
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********************************************************************/
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/* */
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static void capwap_addstation_element_create(void* data, capwap_message_elements_handle handle, struct capwap_write_message_elements_ops* func) {
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struct capwap_addstation_element* element = (struct capwap_addstation_element*)data;
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ASSERT(data != NULL);
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ASSERT(IS_VALID_RADIOID(element->radioid));
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ASSERT(IS_VALID_MACADDRESS_LENGTH(element->length));
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func->write_u8(handle, element->radioid);
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func->write_u8(handle, element->length);
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func->write_block(handle, element->address, element->length);
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if (element->vlan && *element->vlan) {
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unsigned short length = strlen((char*)element->vlan);
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ASSERT(length <= CAPWAP_ADDSTATION_VLAN_MAX_LENGTH);
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func->write_block(handle, element->vlan, length);
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}
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}
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/* */
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static void* capwap_addstation_element_clone(void* data) {
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struct capwap_addstation_element* cloneelement;
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ASSERT(data != NULL);
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cloneelement = capwap_clone(data, sizeof(struct capwap_addstation_element));
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if (cloneelement->length > 0) {
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cloneelement->address = capwap_clone(((struct capwap_addstation_element*)data)->address, cloneelement->length);
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}
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if (cloneelement->vlan) {
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cloneelement->vlan = (uint8_t*)capwap_duplicate_string((char*)((struct capwap_addstation_element*)data)->vlan);
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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_addstation_element_free(void* data) {
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struct capwap_addstation_element* element = (struct capwap_addstation_element*)data;
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ASSERT(data != NULL);
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if (element->vlan) {
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capwap_free(element->vlan);
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}
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if (element->address) {
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capwap_free(element->address);
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}
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capwap_free(element);
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}
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/* */
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static void* capwap_addstation_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_addstation_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 < 8) {
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capwap_logging_debug("Invalid Add Station element: underbuffer");
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return NULL;
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}
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length -= 2;
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/* */
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data = (struct capwap_addstation_element*)capwap_alloc(sizeof(struct capwap_addstation_element));
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memset(data, 0, sizeof(struct capwap_addstation_element));
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/* Retrieve data */
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func->read_u8(handle, &data->radioid);
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func->read_u8(handle, &data->length);
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if (!IS_VALID_RADIOID(data->radioid)) {
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capwap_addstation_element_free((void*)data);
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capwap_logging_debug("Invalid Add Station element: invalid radio");
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return NULL;
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} else if (!IS_VALID_MACADDRESS_LENGTH(data->length) || (length < data->length)) {
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capwap_addstation_element_free((void*)data);
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capwap_logging_debug("Invalid Add Station element: invalid length");
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return NULL;
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}
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data->address = (uint8_t*)capwap_alloc(data->length);
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func->read_block(handle, data->address, data->length);
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length -= data->length;
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if (length > 0) {
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if (length <= CAPWAP_ADDSTATION_VLAN_MAX_LENGTH) {
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data->vlan = (uint8_t*)capwap_alloc(length + 1);
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func->read_block(handle, data->vlan, length);
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data->vlan[length] = 0;
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} else {
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capwap_addstation_element_free((void*)data);
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capwap_logging_debug("Invalid Add Station element: invalid vlan");
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return NULL;
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}
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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_addstation_ops = {
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.create = capwap_addstation_element_create,
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.parse = capwap_addstation_element_parsing,
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.clone = capwap_addstation_element_clone,
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.free = capwap_addstation_element_free
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};
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