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eapol: add PMK installer support

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802.1x offloading needs a way to call SET_PMK after EAP finishes.
In the same manner as set_tk/gtk/igtk a new 'install_pmk' function
was added which eapol can call into after EAP completes.
This commit is contained in:
James Prestwood 2021-04-09 09:14:44 -07:00 committed by Denis Kenzior
parent 3284ed4e8e
commit 93b49a72ac
2 changed files with 15 additions and 0 deletions
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10
src/eapol.c
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@ -52,6 +52,7 @@ static uint32_t eapol_4way_handshake_time = 2;
static eapol_rekey_offload_func_t rekey_offload = NULL;
static eapol_tx_packet_func_t tx_packet = NULL;
static eapol_install_pmk_func_t install_pmk = NULL;
static void *tx_user_data;
#define VERIFY_IS_ZERO(field) \
@ -2177,6 +2178,10 @@ static void eapol_eap_complete_cb(enum eap_result result, void *user_data)
sm->eap = NULL;
handshake_failed(sm, MMPDU_REASON_CODE_IEEE8021X_FAILED);
return;
} else {
if (install_pmk)
install_pmk(sm->handshake, sm->handshake->pmk,
sm->handshake->pmk_len);
}
eap_reset(sm->eap);
@ -2485,6 +2490,11 @@ void __eapol_set_rekey_offload_func(eapol_rekey_offload_func_t func)
rekey_offload = func;
}
void __eapol_set_install_pmk_func(eapol_install_pmk_func_t func)
{
install_pmk = func;
}
void eapol_register(struct eapol_sm *sm)
{
eapol_frame_watch_func_t rx_handler = sm->handshake->authenticator ?

5
src/eapol.h
View File

@ -51,6 +51,9 @@ typedef void (*eapol_frame_watch_func_t)(uint16_t proto, const uint8_t *from,
const struct eapol_frame *frame,
bool noencrypt,
void *user_data);
typedef void (*eapol_install_pmk_func_t)(struct handshake_state *hs,
const uint8_t *pmk,
size_t pmk_len);
bool eapol_calculate_mic(enum ie_rsn_akm_suite akm, const uint8_t *kck,
const struct eapol_key *frame, uint8_t *mic,
@ -102,6 +105,8 @@ void __eapol_tx_packet(uint32_t ifindex, const uint8_t *dst, uint16_t proto,
void __eapol_set_tx_packet_func(eapol_tx_packet_func_t func);
void __eapol_set_tx_user_data(void *user_data);
void __eapol_set_install_pmk_func(eapol_install_pmk_func_t func);
void __eapol_set_rekey_offload_func(eapol_rekey_offload_func_t func);
void __eapol_update_replay_counter(uint32_t ifindex, const uint8_t *spa,
const uint8_t *aa, uint64_t replay_counter);