freewtp/src/common/capwap_element_wtpframetunnelmode.c
2013-05-01 14:52:55 +02:00

82 lines
2.3 KiB
C

#include "capwap.h"
#include "capwap_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
********************************************************************/
struct capwap_wtpframetunnelmode_raw_element {
unsigned char mode;
} __attribute__((__packed__));
/* */
struct capwap_message_element* capwap_wtpframetunnelmode_element_create(void* data, unsigned long datalength) {
struct capwap_message_element* element;
struct capwap_wtpframetunnelmode_raw_element* dataraw;
struct capwap_wtpframetunnelmode_element* dataelement = (struct capwap_wtpframetunnelmode_element*)data;
ASSERT(data != NULL);
ASSERT(datalength >= sizeof(struct capwap_wtpframetunnelmode_element));
/* Alloc block of memory */
element = capwap_alloc(sizeof(struct capwap_message_element) + sizeof(struct capwap_wtpframetunnelmode_raw_element));
if (!element) {
capwap_outofmemory();
}
/* Create message element */
memset(element, 0, sizeof(struct capwap_message_element) + sizeof(struct capwap_wtpframetunnelmode_raw_element));
element->type = htons(CAPWAP_ELEMENT_WTPFRAMETUNNELMODE);
element->length = htons(sizeof(struct capwap_wtpframetunnelmode_raw_element));
dataraw = (struct capwap_wtpframetunnelmode_raw_element*)element->data;
dataraw->mode = dataelement->mode & CAPWAP_WTP_FRAME_TUNNEL_MODE_MASK;
return element;
}
/* */
int capwap_wtpframetunnelmode_element_validate(struct capwap_message_element* element) {
/* TODO */
return 1;
}
/* */
void* capwap_wtpframetunnelmode_element_parsing(struct capwap_message_element* element) {
struct capwap_wtpframetunnelmode_element* data;
struct capwap_wtpframetunnelmode_raw_element* dataraw;
ASSERT(element);
ASSERT(ntohs(element->type) == CAPWAP_ELEMENT_WTPFRAMETUNNELMODE);
if (ntohs(element->length) != 1) {
return NULL;
}
/* */
dataraw = (struct capwap_wtpframetunnelmode_raw_element*)element->data;
data = (struct capwap_wtpframetunnelmode_element*)capwap_alloc(sizeof(struct capwap_wtpframetunnelmode_element));
if (!data) {
capwap_outofmemory();
}
/* */
data->mode = dataraw->mode & CAPWAP_WTP_FRAME_TUNNEL_MODE_MASK;
return data;
}
/* */
void capwap_wtpframetunnelmode_element_free(void* data) {
ASSERT(data != NULL);
capwap_free(data);
}