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peap: Introduce PEAP state

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Introduction of the state struct will allow to hold the additional
state variables related to the implementation of PEAP.
This commit is contained in:
Tim Kourt 2019-12-05 13:13:49 -08:00 committed by Denis Kenzior
parent f909c6db26
commit 5273a3b581
1 changed files with 31 additions and 13 deletions
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44
src/eap-peap.c
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@ -41,6 +41,10 @@
* PEAPv1: draft-josefsson-pppext-eap-tls-eap-05 * PEAPv1: draft-josefsson-pppext-eap-tls-eap-05
*/ */
struct peap_state {
struct eap_state *phase2;
};
static void eap_peap_phase2_send_response(const uint8_t *pdu, size_t pdu_len, static void eap_peap_phase2_send_response(const uint8_t *pdu, size_t pdu_len,
void *user_data) void *user_data)
{ {
@ -116,6 +120,7 @@ static int eap_extensions_handle_result_avp(struct eap_state *eap,
size_t data_len, size_t data_len,
uint8_t *response) uint8_t *response)
{ {
struct peap_state *peap_state;
uint16_t type; uint16_t type;
uint16_t len; uint16_t len;
uint16_t result; uint16_t result;
@ -143,8 +148,9 @@ static int eap_extensions_handle_result_avp(struct eap_state *eap,
switch (result) { switch (result) {
case EAP_EXTENSIONS_RESULT_SUCCCESS: case EAP_EXTENSIONS_RESULT_SUCCCESS:
result = eap_method_is_success( peap_state = eap_tls_common_get_variant_data(eap);
eap_tls_common_get_variant_data(eap)) ?
result = eap_method_is_success(peap_state->phase2) ?
EAP_EXTENSIONS_RESULT_SUCCCESS : EAP_EXTENSIONS_RESULT_SUCCCESS :
EAP_EXTENSIONS_RESULT_FAILURE; EAP_EXTENSIONS_RESULT_FAILURE;
/* fall through */ /* fall through */
@ -225,6 +231,7 @@ static bool eap_peap_tunnel_handle_request(struct eap_state *eap,
const uint8_t *pkt, const uint8_t *pkt,
size_t len) size_t len)
{ {
struct peap_state *peap_state;
uint8_t id; uint8_t id;
if (len > 4 && pkt[4] == EAP_TYPE_EXTENSIONS) { if (len > 4 && pkt[4] == EAP_TYPE_EXTENSIONS) {
@ -247,6 +254,8 @@ static bool eap_peap_tunnel_handle_request(struct eap_state *eap,
return true; return true;
} }
peap_state = eap_tls_common_get_variant_data(eap);
if (eap_tls_common_get_negotiated_version(eap) == EAP_TLS_VERSION_0) { if (eap_tls_common_get_negotiated_version(eap) == EAP_TLS_VERSION_0) {
if (len < 1) if (len < 1)
return false; return false;
@ -259,32 +268,37 @@ static bool eap_peap_tunnel_handle_request(struct eap_state *eap,
*/ */
eap_save_last_id(eap, &id); eap_save_last_id(eap, &id);
__eap_handle_request(eap_tls_common_get_variant_data(eap), id, __eap_handle_request(peap_state->phase2, id, pkt, len);
pkt, len);
return true; return true;
} }
eap_rx_packet(eap_tls_common_get_variant_data(eap), pkt, len); eap_rx_packet(peap_state->phase2, pkt, len);
return true; return true;
} }
static void eap_peap_state_reset(void *phase2) static void eap_peap_state_reset(void *variant_data)
{ {
if (!phase2) struct peap_state *peap_state = variant_data;
if (!peap_state)
return; return;
eap_reset(phase2); eap_reset(peap_state->phase2);
} }
static void eap_peap_state_destroy(void *phase2) static void eap_peap_state_destroy(void *variant_data)
{ {
if (!phase2) struct peap_state *peap_state = variant_data;
if (!peap_state)
return; return;
eap_reset(phase2); eap_reset(peap_state->phase2);
eap_free(phase2); eap_free(peap_state->phase2);
l_free(peap_state);
} }
static int eap_peap_settings_check(struct l_settings *settings, static int eap_peap_settings_check(struct l_settings *settings,
@ -323,6 +337,7 @@ static bool eap_peap_settings_load(struct eap_state *eap,
const char *prefix) const char *prefix)
{ {
char setting_key_prefix[72]; char setting_key_prefix[72];
struct peap_state *peap_state;
void *phase2; void *phase2;
phase2 = eap_new(eap_peap_phase2_send_response, phase2 = eap_new(eap_peap_phase2_send_response,
@ -343,11 +358,14 @@ static bool eap_peap_settings_load(struct eap_state *eap,
return false; return false;
} }
peap_state = l_new(struct peap_state, 1);
peap_state->phase2 = phase2;
snprintf(setting_key_prefix, sizeof(setting_key_prefix), "%sPEAP-", snprintf(setting_key_prefix, sizeof(setting_key_prefix), "%sPEAP-",
prefix); prefix);
if (!eap_tls_common_settings_load(eap, settings, setting_key_prefix, if (!eap_tls_common_settings_load(eap, settings, setting_key_prefix,
&eap_ttls_ops, phase2)) &eap_ttls_ops, peap_state))
return false; return false;
return true; return true;