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FT: Replace inter-AP protocol with use of OUI Extended Ethertype

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Replace the previously used extension of IEEE 802.11 managed Ethertype
89-0d (originally added for Remote Request/Response in IEEE 802.11r)
with Ethertype 88-b7 (OUI Extended EtherType) for FT inter-AP
communication. The new design uses a more properly assigned identifier
for the messages.

This assigns the OUI 00:13:74 vendor-specific subtype 0x0001 for the new
hostapd AP-to-AP communication purposes. Subtypes 1 (PULL), 2 (RESP),
and 3 (PUSH) are also assigned in this commit for the R0KH-R1KH
protocol.

This breaks backward compatibility, i.e., hostapd needs to be updated on
all APs at the same time to allow FT to remain functional.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
This commit is contained in:
Michael Braun 2017-04-02 14:52:49 +02:00 • committed by Jouni Malinen
parent 0ed5e9467f
commit 50bd8e0a90
11 changed files with 526 additions and 47 deletions
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7
src/ap/hostapd.h
View file

@ -53,6 +53,9 @@ struct hapd_interfaces {
#ifndef CONFIG_NO_VLAN
struct dynamic_iface *vlan_priv;
#endif /* CONFIG_NO_VLAN */
#ifdef CONFIG_ETH_P_OUI
struct dl_list eth_p_oui; /* OUI Extended EtherType handlers */
#endif /* CONFIG_ETH_P_OUI */
int eloop_initialized;
};
@ -188,6 +191,10 @@ struct hostapd_data {
#ifdef CONFIG_IEEE80211R_AP
struct dl_list l2_queue;
struct dl_list l2_oui_queue;
struct eth_p_oui_ctx *oui_pull;
struct eth_p_oui_ctx *oui_resp;
struct eth_p_oui_ctx *oui_push;
#endif /* CONFIG_IEEE80211R_AP */
struct wps_context *wps;