TclTLS
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Comment:More work towards getting the state engine for waiting for a connection to come back together
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SHA1: 5aea4802ca88a0b37bae4b6ebdec4ab80a78febe
User & Date: rkeene on 2016-12-07 15:10:02
Other Links: branch diff | manifest | tags
Context
2016-12-07
15:12
Added more debugging check-in: ed1ce834df user: rkeene tags: tls-1-7
15:10
More work towards getting the state engine for waiting for a connection to come back together check-in: 5aea4802ca user: rkeene tags: tls-1-7
15:02
Updated wording of debug messages to be correct check-in: 7c044da68e user: rkeene tags: tls-1-7
Changes
Side-by-Side Diff Ignore Whitespace Patch
Modified tlsIO.c from [d0dab0f21b] to [77155f526d].
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		/* Soft EOF */
		*errorCodePtr = 0;
		bytesRead = 0;
	    }
	    goto input;
	}
    }

    if (statePtr->flags & TLS_TCL_INIT) {
	statePtr->flags &= ~(TLS_TCL_INIT);
    }
    /*
     * We need to clear the SSL error stack now because we sometimes reach
     * this function with leftover errors in the stack.  If BIO_read
     * returns -1 and intends EAGAIN, there is a leftover error, it will be
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       *errorCodePtr = EAGAIN;
       goto output;
    }

    if (!SSL_is_init_finished(statePtr->ssl)) {
	written = Tls_WaitForConnect(statePtr, errorCodePtr);
	if (written <= 0) {
            dprintf("Tls_WaitForConnect returned %i (err = %i)", written, *errorCodePtr);

	    goto output;
	}
    }
    if (statePtr->flags & TLS_TCL_INIT) {
	statePtr->flags &= ~(TLS_TCL_INIT);
    }
    if (toWrite == 0) {
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        *errorCodePtr = ECONNRESET;
        return -1;
    }

    for (;;) {
	/* Not initialized yet! */
	if (statePtr->flags & TLS_TCL_SERVER) {
            dprintf("Calling SSL_accept()");
	    err = SSL_accept(statePtr->ssl);
	} else {
            dprintf("Calling SSL_connect()");
	    err = SSL_connect(statePtr->ssl);
	}

	/*SSL_write(statePtr->ssl, (char*)&err, 0);	HACK!!! */
	if (err > 0) {
            dprintf("That seems to have gone okay");
	    BIO_flush(statePtr->bio);
	}
	} else {
	    int rc = SSL_get_error(statePtr->ssl, err);

	if (err <= 0) {
	    int rc = SSL_get_error(statePtr->ssl, err);
            dprintf("Got error: %i (rc = %i)", err, rc);

	    if (rc == SSL_ERROR_SSL) {
		Tls_Error(statePtr,
			(char *)ERR_reason_error_string(ERR_get_error()));
                statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;
		*errorCodePtr = ECONNABORTED;
		return -1;
	    } else if (BIO_should_retry(statePtr->bio)) {
		if (statePtr->flags & TLS_TCL_ASYNC) {
		    dprintf("E! ");
		    *errorCodePtr = EAGAIN;
		    return -1;
		} else {
		    continue;
		}
	    } else if (err == 0) {
                if (Tcl_Eof(statePtr->self)) {
                    dprintf("Error = 0 and EOF is set, returning with 0");

                    return 0;
                }
		dprintf("CR! ");
		*errorCodePtr = ECONNRESET;
		return -1;
	    }
	    if (statePtr->flags & TLS_TCL_SERVER) {
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