104 lines
3.4 KiB
C
104 lines
3.4 KiB
C
#include "capwap.h"
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#include "element.h"
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/*
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* The IEEE 802.11 Encryption Capability message element is used by
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* the WTP to inform the AC of the support cipher suites. It contains
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* a list of suites as defined by IEEE 802.11 Sect. 8.4.2.27.2.
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* The message element contains the following fields.
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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 | Cipher Suites... |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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* IEEE 802.11 Encryption Capability
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*
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* Vendor Id: 18681 (Travelping GmbH)
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* Type: 18
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*
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*/
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/* */
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static void
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capwap_vendor_travelping_80211_encryption_capability_element_create(void *data,
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capwap_message_elements_handle handle,
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struct capwap_write_message_elements_ops *func)
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{
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int i;
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struct capwap_vendor_travelping_80211_encryption_capability_element *element =
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(struct capwap_vendor_travelping_80211_encryption_capability_element *)data;
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ASSERT(data != NULL);
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func->write_u8(handle, element->radioid);
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for (i = 0; i < element->suites_count; i++)
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func->write_u32(handle, element->suites[i]);
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}
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/* */
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static void *
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capwap_vendor_travelping_80211_encryption_capability_element_parsing(capwap_message_elements_handle handle,
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struct capwap_read_message_elements_ops *func)
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{
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struct capwap_vendor_travelping_80211_encryption_capability_element *data;
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int suites_length, i;
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ASSERT(handle != NULL);
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ASSERT(func != NULL);
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if (func->read_ready(handle) < 1) {
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log_printf(LOG_DEBUG, "Invalid Vendor Travelping WTP 802.11 Encryption Capability element");
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return NULL;
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}
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suites_length = func->read_ready(handle) - 1;
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if ((suites_length % sizeof(uint32_t)) != 0) {
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log_printf(LOG_DEBUG, "Invalid Vendor Travelping WTP 802.11 Encryption Capability element");
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return NULL;
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}
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/* */
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data = (struct capwap_vendor_travelping_80211_encryption_capability_element *)
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capwap_alloc(sizeof(struct capwap_vendor_travelping_80211_encryption_capability_element) + suites_length);
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/* Retrieve data */
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func->read_u8(handle, &data->radioid);
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data->suites_count = suites_length / sizeof(uint32_t);
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for (i = 0; i < data->suites_count; i++)
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func->read_u32(handle, &data->suites[i]);
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return data;
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}
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/* */
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static void *
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capwap_vendor_travelping_80211_encryption_capability_element_clone(void *data)
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{
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struct capwap_vendor_travelping_80211_encryption_capability_element *element =
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(struct capwap_vendor_travelping_80211_encryption_capability_element *)data;
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ASSERT(data != NULL);
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return capwap_clone(data, sizeof(struct capwap_vendor_travelping_80211_encryption_capability_element)
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+ element->suites_count * sizeof(uint32_t));
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}
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/* */
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static void
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capwap_vendor_travelping_80211_encryption_capability_element_free(void* data)
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{
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ASSERT(data != NULL);
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capwap_free(data);
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}
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/* */
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const struct capwap_message_elements_ops capwap_element_vendor_travelping_80211_encryption_capability_ops = {
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.category = CAPWAP_MESSAGE_ELEMENT_ARRAY,
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.create = capwap_vendor_travelping_80211_encryption_capability_element_create,
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.parse = capwap_vendor_travelping_80211_encryption_capability_element_parsing,
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.clone = capwap_vendor_travelping_80211_encryption_capability_element_clone,
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.free = capwap_vendor_travelping_80211_encryption_capability_element_free
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};
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