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netdev: Handle the GTK & IGTK received in a FT

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Parse the GTK and IGTK FT subelements and set the keys through netlink.
This commit is contained in:
Andrew Zaborowski 2017-02-01 11:58:41 +01:00 committed by Denis Kenzior
parent 9ceca7a521
commit 701e5dabb9
1 changed files with 31 additions and 1 deletions
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32
src/netdev.c
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@ -1186,7 +1186,6 @@ static bool netdev_handle_associate_resp_ies(struct handshake_state *hs,
* R0KH-ID, R1KH-ID, ANonce and SNonce that we * R0KH-ID, R1KH-ID, ANonce and SNonce that we
* received in message 2, MIC Element Count * received in message 2, MIC Element Count
* of 6 and the correct MIC. * of 6 and the correct MIC.
* TODO: parse and use the GTK and IGTK subelements.
*/ */
uint8_t mic[16]; uint8_t mic[16];
@ -1209,6 +1208,37 @@ static bool netdev_handle_associate_resp_ies(struct handshake_state *hs,
if (memcmp(ft_info.snonce, hs->snonce, 32)) if (memcmp(ft_info.snonce, hs->snonce, 32))
return false; return false;
if (ft_info.gtk_len) {
uint8_t gtk[32];
if (!handshake_decode_fte_key(hs, ft_info.gtk,
ft_info.gtk_len,
gtk))
return false;
if (ft_info.gtk_rsc[6] != 0x00 ||
ft_info.gtk_rsc[7] != 0x00)
return false;
handshake_state_install_gtk(hs,
ft_info.gtk_key_id,
gtk, ft_info.gtk_len,
ft_info.gtk_rsc, 6);
}
if (ft_info.igtk_len) {
uint8_t igtk[16];
if (!handshake_decode_fte_key(hs, ft_info.igtk,
ft_info.igtk_len, igtk))
return false;
handshake_state_install_igtk(hs,
ft_info.igtk_key_id,
igtk, ft_info.igtk_len,
ft_info.igtk_ipn);
}
} else { } else {
/* Initial MD association */ /* Initial MD association */