freewtp/lib/element_80211_txpower.c
2016-08-23 08:55:15 +02:00

76 lines
2.2 KiB
C

#include "capwap.h"
#include "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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Radio ID | Reserved | Current Tx Power |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Type: 1041 for IEEE 802.11 Tx Power
Length: 4
********************************************************************/
/* */
static void capwap_80211_txpower_element_create(void* data, capwap_message_elements_handle handle, struct capwap_write_message_elements_ops* func) {
struct capwap_80211_txpower_element* element = (struct capwap_80211_txpower_element*)data;
ASSERT(data != NULL);
/* */
func->write_u8(handle, element->radioid);
func->write_u8(handle, 0);
func->write_u16(handle, element->currenttxpower);
}
/* */
static void* capwap_80211_txpower_element_parsing(capwap_message_elements_handle handle, struct capwap_read_message_elements_ops* func) {
struct capwap_80211_txpower_element* data;
ASSERT(handle != NULL);
ASSERT(func != NULL);
if (func->read_ready(handle) != 4) {
log_printf(LOG_DEBUG, "Invalid IEEE 802.11 Tx Power element");
return NULL;
}
/* */
data = (struct capwap_80211_txpower_element*)capwap_alloc(sizeof(struct capwap_80211_txpower_element));
memset(data, 0, sizeof(struct capwap_80211_txpower_element));
/* Retrieve data */
func->read_u8(handle, &data->radioid);
func->read_u8(handle, NULL);
func->read_u16(handle, &data->currenttxpower);
return data;
}
/* */
static void* capwap_80211_txpower_element_clone(void* data) {
ASSERT(data != NULL);
return capwap_clone(data, sizeof(struct capwap_80211_txpower_element));
}
/* */
static void capwap_80211_txpower_element_free(void* data) {
ASSERT(data != NULL);
capwap_free(data);
}
/* */
const struct capwap_message_elements_ops capwap_element_80211_txpower_ops = {
.category = CAPWAP_MESSAGE_ELEMENT_ARRAY,
.create = capwap_80211_txpower_element_create,
.parse = capwap_80211_txpower_element_parsing,
.clone = capwap_80211_txpower_element_clone,
.free = capwap_80211_txpower_element_free
};