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Properly send empty EAP-TLS messages

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This commit is contained in:
Martin Willi 2010-02-05 11:30:01 +00:00
parent 51313a39d1
commit 3e7e777941
1 changed files with 25 additions and 22 deletions
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47
src/charon/plugins/eap_tls/eap_tls.c
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@ -215,29 +215,32 @@ static eap_payload_t *read_buf(private_eap_tls_t *this, u_int8_t identifier)
pkt->type = EAP_TLS;
pkt->flags = 0;
start = (char*)(pkt + 1);
if (this->outpos == 0)
{ /* first fragment */
pkt->flags = EAP_TLS_LENGTH;
pkt_len += 4;
start += 4;
htoun32(pkt + 1, this->output.len);
}
if (this->output.len)
{
start = (char*)(pkt + 1);
if (this->outpos == 0)
{ /* first fragment */
pkt->flags = EAP_TLS_LENGTH;
pkt_len += 4;
start += 4;
htoun32(pkt + 1, this->output.len);
}
if (this->output.len - this->outpos > EAP_TLS_FRAGMENT_LEN)
{
pkt->flags |= EAP_TLS_MORE_FRAGS;
pkt_len += EAP_TLS_FRAGMENT_LEN;
memcpy(start, this->output.ptr + this->outpos, EAP_TLS_FRAGMENT_LEN);
this->outpos += EAP_TLS_FRAGMENT_LEN;
}
else
{
pkt_len += this->output.len - this->outpos;
memcpy(start, this->output.ptr + this->outpos,
this->output.len - this->outpos);
chunk_free(&this->output);
this->outpos = 0;
if (this->output.len - this->outpos > EAP_TLS_FRAGMENT_LEN)
{
pkt->flags |= EAP_TLS_MORE_FRAGS;
pkt_len += EAP_TLS_FRAGMENT_LEN;
memcpy(start, this->output.ptr + this->outpos, EAP_TLS_FRAGMENT_LEN);
this->outpos += EAP_TLS_FRAGMENT_LEN;
}
else
{
pkt_len += this->output.len - this->outpos;
memcpy(start, this->output.ptr + this->outpos,
this->output.len - this->outpos);
chunk_free(&this->output);
this->outpos = 0;
}
}
htoun16(&pkt->length, pkt_len);
return eap_payload_create_data(chunk_create(buf, pkt_len));