103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
#include "capwap.h"
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#include "element.h"
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/*
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* The IEEE 802.11 Supported MAC Profile message element allows the WTP
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* to communicate the profiles it supports. The Discovery Request
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* message, Primary Discovery Request message, and Join Request message
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* may include one such message element.
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*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0
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* +=+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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* | Num_Profiles | Profile_1 | Profile_[2..N]..
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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*
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* o Type: 1060 for IEEE 802.11 Supported MAC Profiles
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*
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* o Num_Profiles >=1: This refers to the number of profiles present in
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* this message element. There must be at least one profile.
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*
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* o Profile: Each profile is identified by a value specified in
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* Section 3.2.
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*/
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/* */
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static void
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capwap_80211_supported_mac_profiles_element_create(void *data, capwap_message_elements_handle handle,
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struct capwap_write_message_elements_ops *func)
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{
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struct capwap_80211_supported_mac_profiles_element *element =
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(struct capwap_80211_supported_mac_profiles_element*)data;
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ASSERT(data != NULL);
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func->write_u8(handle, element->supported_mac_profilescount);
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func->write_block(handle, element->supported_mac_profiles, element->supported_mac_profilescount);
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}
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/* */
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static void *
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capwap_80211_supported_mac_profiles_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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unsigned short length;
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struct capwap_80211_supported_mac_profiles_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 < 1 || length > 255) {
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log_printf(LOG_DEBUG, "Invalid IEEE 802.11 Supported MAC Profiles element");
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return NULL;
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}
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length -= 1;
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/* */
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data = (struct capwap_80211_supported_mac_profiles_element *)
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capwap_alloc(sizeof(struct capwap_80211_supported_mac_profiles_element) + length);
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memset(data, 0, sizeof(struct capwap_80211_supported_mac_profiles_element) + length);
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/* Retrieve data */
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func->read_u8(handle, &data->supported_mac_profilescount);
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if (data->supported_mac_profilescount != length) {
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log_printf(LOG_DEBUG, "Invalid IEEE 802.11 Supported MAC Profiles element");
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capwap_free(data);
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return NULL;
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}
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func->read_block(handle, data->supported_mac_profiles, length);
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return data;
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}
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/* */
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static void *capwap_80211_supported_mac_profiles_element_clone(void *data)
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{
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struct capwap_80211_supported_mac_profiles_element *element =
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(struct capwap_80211_supported_mac_profiles_element*)data;
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ASSERT(data != NULL);
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return capwap_clone(data, sizeof(struct capwap_80211_supported_mac_profiles_element)
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+ element->supported_mac_profilescount);
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}
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/* */
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static void capwap_80211_supported_mac_profiles_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_80211_supported_mac_profiles_ops = {
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.category = CAPWAP_MESSAGE_ELEMENT_SINGLE,
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.create = capwap_80211_supported_mac_profiles_element_create,
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.parse = capwap_80211_supported_mac_profiles_element_parsing,
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.clone = capwap_80211_supported_mac_profiles_element_clone,
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.free = capwap_80211_supported_mac_profiles_element_free
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};
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