116 lines
4.1 KiB
C
116 lines
4.1 KiB
C
#include "capwap.h"
|
|
#include "capwap_element.h"
|
|
|
|
/********************************************************************
|
|
|
|
0 1 2 3
|
|
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
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
| IP Address |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
| IP Address |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
| IP Address |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
| IP Address |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
| Status | Length | MAC Address ...
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
|
|
Type: 22 for Duplicate IPv6 Address
|
|
|
|
Length: >= 24
|
|
|
|
********************************************************************/
|
|
|
|
/* */
|
|
static void capwap_duplicateipv6_element_create(void* data, capwap_message_elements_handle handle, struct capwap_write_message_elements_ops* func) {
|
|
struct capwap_duplicateipv6_element* element = (struct capwap_duplicateipv6_element*)data;
|
|
|
|
ASSERT(data != NULL);
|
|
ASSERT((element->status == CAPWAP_DUPLICATEIPv6_CLEARED) || (element->status == CAPWAP_DUPLICATEIPv6_DETECTED));
|
|
ASSERT(IS_VALID_MACADDRESS_LENGTH(element->length));
|
|
|
|
func->write_block(handle, (uint8_t*)&element->address, sizeof(struct in6_addr));
|
|
func->write_u8(handle, element->status);
|
|
func->write_u8(handle, element->length);
|
|
func->write_block(handle, element->macaddress, element->length);
|
|
}
|
|
|
|
/* */
|
|
static void* capwap_duplicateipv6_element_clone(void* data) {
|
|
struct capwap_duplicateipv6_element* cloneelement;
|
|
|
|
ASSERT(data != NULL);
|
|
|
|
cloneelement = capwap_clone(data, sizeof(struct capwap_duplicateipv6_element));
|
|
if (cloneelement->length > 0) {
|
|
cloneelement->macaddress = capwap_clone(((struct capwap_duplicateipv6_element*)data)->macaddress, cloneelement->length);
|
|
}
|
|
|
|
return cloneelement;
|
|
}
|
|
|
|
/* */
|
|
static void capwap_duplicateipv6_element_free(void* data) {
|
|
struct capwap_duplicateipv6_element* element = (struct capwap_duplicateipv6_element*)data;
|
|
|
|
ASSERT(data != NULL);
|
|
|
|
if (element->macaddress) {
|
|
capwap_free(element->macaddress);
|
|
}
|
|
|
|
capwap_free(data);
|
|
}
|
|
|
|
/* */
|
|
static void* capwap_duplicateipv6_element_parsing(capwap_message_elements_handle handle, struct capwap_read_message_elements_ops* func) {
|
|
unsigned short length;
|
|
struct capwap_duplicateipv6_element* data;
|
|
|
|
ASSERT(handle != NULL);
|
|
ASSERT(func != NULL);
|
|
|
|
length = func->read_ready(handle);
|
|
if (length < 24) {
|
|
capwap_logging_debug("Invalid Duplicate IPv6 Address element: underbuffer");
|
|
return NULL;
|
|
}
|
|
|
|
length -= 18;
|
|
|
|
/* */
|
|
data = (struct capwap_duplicateipv6_element*)capwap_alloc(sizeof(struct capwap_duplicateipv6_element));
|
|
memset(data, 0, sizeof(struct capwap_duplicateipv6_element));
|
|
|
|
/* Retrieve data */
|
|
func->read_block(handle, (uint8_t*)&data->address, sizeof(struct in6_addr));
|
|
func->read_u8(handle, &data->status);
|
|
func->read_u8(handle, &data->length);
|
|
|
|
if ((data->status != CAPWAP_DUPLICATEIPv6_CLEARED) && (data->status != CAPWAP_DUPLICATEIPv6_DETECTED)) {
|
|
capwap_duplicateipv6_element_free((void*)data);
|
|
capwap_logging_debug("Invalid Duplicate IPv6 Address element: invalid status");
|
|
return NULL;
|
|
} else if (!IS_VALID_MACADDRESS_LENGTH(data->length) || (length != data->length)) {
|
|
capwap_duplicateipv6_element_free((void*)data);
|
|
capwap_logging_debug("Invalid Duplicate IPv6 Address element: invalid length");
|
|
return NULL;
|
|
}
|
|
|
|
data->macaddress = (uint8_t*)capwap_alloc(data->length);
|
|
func->read_block(handle, data->macaddress, data->length);
|
|
|
|
return data;
|
|
}
|
|
|
|
/* */
|
|
const struct capwap_message_elements_ops capwap_element_duplicateipv6_ops = {
|
|
.category = CAPWAP_MESSAGE_ELEMENT_SINGLE,
|
|
.create = capwap_duplicateipv6_element_create,
|
|
.parse = capwap_duplicateipv6_element_parsing,
|
|
.clone = capwap_duplicateipv6_element_clone,
|
|
.free = capwap_duplicateipv6_element_free
|
|
};
|