114 lines
3.6 KiB
C
114 lines
3.6 KiB
C
#include "capwap.h"
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#include "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 | WLAN ID | Capability |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Key Index | Key Status | Key Length |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Key... |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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Type: 1044 for IEEE 802.11 Update WLAN
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Length: >= 8
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********************************************************************/
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/* */
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static void capwap_80211_updatewlan_element_create(void* data, capwap_message_elements_handle handle, struct capwap_write_message_elements_ops* func) {
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struct capwap_80211_updatewlan_element* element = (struct capwap_80211_updatewlan_element*)data;
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ASSERT(data != NULL);
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func->write_u8(handle, element->radioid);
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func->write_u8(handle, element->wlanid);
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func->write_u16(handle, element->capability);
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func->write_u8(handle, element->keyindex);
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func->write_u8(handle, element->keystatus);
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func->write_u16(handle, element->keylength);
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if ((element->keylength > 0) && element->key) {
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func->write_block(handle, element->key, element->keylength);
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}
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}
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/* */
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static void* capwap_80211_updatewlan_element_clone(void* data) {
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struct capwap_80211_updatewlan_element* cloneelement;
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ASSERT(data != NULL);
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cloneelement = capwap_clone(data, sizeof(struct capwap_80211_updatewlan_element));
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if (cloneelement->keylength > 0) {
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cloneelement->key = capwap_clone(((struct capwap_80211_updatewlan_element*)data)->key, cloneelement->keylength);
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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_80211_updatewlan_element_free(void* data) {
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struct capwap_80211_updatewlan_element* element = (struct capwap_80211_updatewlan_element*)data;
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ASSERT(data != NULL);
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if (element->key) {
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capwap_free(element->key);
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}
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capwap_free(data);
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}
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/* */
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static void* capwap_80211_updatewlan_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_80211_updatewlan_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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log_printf(LOG_DEBUG, "Invalid IEEE 802.11 Update WLAN element");
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return NULL;
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}
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length -= 8;
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/* */
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data = (struct capwap_80211_updatewlan_element*)capwap_alloc(sizeof(struct capwap_80211_updatewlan_element));
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memset(data, 0, sizeof(struct capwap_80211_updatewlan_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->wlanid);
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func->read_u16(handle, &data->capability);
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func->read_u8(handle, &data->keyindex);
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func->read_u8(handle, &data->keystatus);
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func->read_u16(handle, &data->keylength);
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if (length != data->keylength) {
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capwap_80211_updatewlan_element_free((void*)data);
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log_printf(LOG_DEBUG, "Invalid IEEE 802.11 Update WLAN element");
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return NULL;
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} else if (data->keylength > 0) {
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data->key = (uint8_t*)capwap_alloc(data->keylength);
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func->read_block(handle, data->key, data->keylength);
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}
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return data;
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}
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/* */
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const struct capwap_message_elements_ops capwap_element_80211_updatewlan_ops = {
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.category = CAPWAP_MESSAGE_ELEMENT_SINGLE,
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.create = capwap_80211_updatewlan_element_create,
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.parse = capwap_80211_updatewlan_element_parsing,
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.clone = capwap_80211_updatewlan_element_clone,
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.free = capwap_80211_updatewlan_element_free
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};
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