freewtp/lib/element_wtpframetunnelmode.c
2016-08-23 08:55:15 +02:00

75 lines
2.1 KiB
C

#include "capwap.h"
#include "element.h"
/********************************************************************
0
0 1 2 3 4 5 6 7
+-+-+-+-+-+-+-+-+
|Reservd|N|E|L|U|
+-+-+-+-+-+-+-+-+
Type: 41 for WTP Frame Tunnel Mode
Length: 1
********************************************************************/
/* */
static void capwap_wtpframetunnelmode_element_create(void* data, capwap_message_elements_handle handle, struct capwap_write_message_elements_ops* func) {
struct capwap_wtpframetunnelmode_element* element = (struct capwap_wtpframetunnelmode_element*)data;
ASSERT(data != NULL);
ASSERT((element->mode & CAPWAP_WTP_FRAME_TUNNEL_MODE_MASK) == element->mode);
/* */
func->write_u8(handle, element->mode);
}
/* */
static void* capwap_wtpframetunnelmode_element_clone(void* data) {
ASSERT(data != NULL);
return capwap_clone(data, sizeof(struct capwap_wtpframetunnelmode_element));
}
/* */
static void capwap_wtpframetunnelmode_element_free(void* data) {
ASSERT(data != NULL);
capwap_free(data);
}
/* */
static void* capwap_wtpframetunnelmode_element_parsing(capwap_message_elements_handle handle, struct capwap_read_message_elements_ops* func) {
struct capwap_wtpframetunnelmode_element* data;
ASSERT(handle != NULL);
ASSERT(func != NULL);
if (func->read_ready(handle) != 1) {
log_printf(LOG_DEBUG, "Invalid WTP Frame Tunnel Mode element: underbuffer");
return NULL;
}
/* Retrieve data */
data = (struct capwap_wtpframetunnelmode_element*)capwap_alloc(sizeof(struct capwap_wtpframetunnelmode_element));
func->read_u8(handle, &data->mode);
if ((data->mode & CAPWAP_WTP_FRAME_TUNNEL_MODE_MASK) != data->mode) {
capwap_wtpframetunnelmode_element_free((void*)data);
log_printf(LOG_DEBUG, "Invalid WTP Frame Tunnel Mode element: invalid mode");
return NULL;
}
return data;
}
/* */
const struct capwap_message_elements_ops capwap_element_wtpframetunnelmode_ops = {
.category = CAPWAP_MESSAGE_ELEMENT_SINGLE,
.create = capwap_wtpframetunnelmode_element_create,
.parse = capwap_wtpframetunnelmode_element_parsing,
.clone = capwap_wtpframetunnelmode_element_clone,
.free = capwap_wtpframetunnelmode_element_free
};