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peap: handle receive for phase two data

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Tim Kourt 2018-02-14 16:14:45 -08:00 committed by Denis Kenzior
parent 487c5cbafc
commit 93d0dac77b
1 changed files with 63 additions and 0 deletions
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63
src/eap-peap.c
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@ -61,6 +61,12 @@ enum peap_flag {
PEAP_FLAG_L = 0x80, PEAP_FLAG_L = 0x80,
}; };
struct databuf {
uint8_t *data;
size_t len;
size_t capacity;
};
struct eap_peap_state { struct eap_peap_state {
enum peap_version version; enum peap_version version;
struct l_tls *tunnel; struct l_tls *tunnel;
@ -68,6 +74,8 @@ struct eap_peap_state {
uint8_t *tx_pdu_buf; uint8_t *tx_pdu_buf;
size_t tx_pdu_buf_len; size_t tx_pdu_buf_len;
struct databuf *plain_buf;
uint8_t *rx_pdu_buf; uint8_t *rx_pdu_buf;
size_t rx_pdu_buf_len; size_t rx_pdu_buf_len;
size_t rx_pdu_buf_offset; size_t rx_pdu_buf_offset;
@ -83,6 +91,49 @@ struct eap_peap_state {
char *passphrase; char *passphrase;
}; };
static struct databuf *databuf_new(size_t capacity)
{
struct databuf *databuf;
if (!capacity)
return NULL;
databuf = l_new(struct databuf, 1);
databuf->data = l_malloc(capacity);
databuf->capacity = capacity;
return databuf;
}
static void databuf_append(struct databuf *databuf, const uint8_t *data,
size_t data_len)
{
size_t new_len;
if (!databuf)
return;
new_len = databuf->len + data_len;
if (new_len > databuf->capacity) {
databuf->capacity = new_len * 2;
databuf->data = l_realloc(databuf->data, databuf->capacity);
}
memcpy(databuf->data + databuf->len, data, data_len);
databuf->len = new_len;
}
static void databuf_free(struct databuf *databuf)
{
if (!databuf)
return;
l_free(databuf->data);
l_free(databuf);
}
static void eap_peap_free_tx_buffer(struct eap_state *eap) static void eap_peap_free_tx_buffer(struct eap_state *eap)
{ {
struct eap_peap_state *peap = eap_get_data(eap); struct eap_peap_state *peap = eap_get_data(eap);
@ -119,6 +170,11 @@ static void eap_peap_free(struct eap_state *eap)
eap_peap_free_tx_buffer(eap); eap_peap_free_tx_buffer(eap);
if (peap->plain_buf) {
databuf_free(peap->plain_buf);
peap->plain_buf = NULL;
}
eap_peap_free_rx_buffer(eap); eap_peap_free_rx_buffer(eap);
eap_set_data(eap, NULL); eap_set_data(eap, NULL);
@ -199,6 +255,13 @@ static void eap_peap_tunnel_data_send(const uint8_t *data, size_t data_len,
static void eap_peap_tunnel_data_received(const uint8_t *data, size_t data_len, static void eap_peap_tunnel_data_received(const uint8_t *data, size_t data_len,
void *user_data) void *user_data)
{ {
struct eap_state *eap = user_data;
struct eap_peap_state *peap = eap_get_data(eap);
if (!peap->plain_buf)
peap->plain_buf = databuf_new(data_len);
databuf_append(peap->plain_buf, data, data_len);
} }
static void eap_peap_tunnel_ready(const char *peer_identity, void *user_data) static void eap_peap_tunnel_ready(const char *peer_identity, void *user_data)