Exemplo n.º 1
0
def readconf(host, community):
    """Read  configuration data from Airport.

    Rop writes:
    Reading from flash
    
    Reading is done by issuing SNMP get-requests for
    1.3.6.1.4.1.762.2.2.1.1.n. This request will then return a string
    containing a 256 byte block having offset (n - 1) * 256. Example:
    to read the configuration block, one would issue SNMP get-requests
    for 1.3.6.1.4.1.762.2.2.1.1.1 through 1.3.6.1.4.1.762.2.2.1.1.68.
    """

    s = session.session(host, community)
    data = ""

    # We could be faster if we dont wait for each response before
    # sending the next one. The apple tool does so.
    for i in range(1, 69):
        encoded_objid = s.encode_oid([1, 3, 6, 1, 4, 1, 762, 2, 2, 1, 1, i])
        question = s.encode_request("GETREQUEST", [encoded_objid], [])
        answer = s.send_and_receive(question)
        (encoded_objids, encoded_values) = s.decode_response(answer)
        values = map(s.decode_value, encoded_values)
        data += values[0]

    s.close()
    del (s)
    return data
Exemplo n.º 2
0
def writeconf(host, community, data):
    """Write configuration Data to an Airport.

    Rop writes:

    Writing to flash

    Writing to flash is done by writing to
    1.3.6.1.4.1.762.2.3.1.1.n, writing the 256 bytes starting at
    position (n - 1) * 256. The write is not actually done until the
    entire block to be written is received, and the length of the
    block is written as an integer to 1.3.6.1.4.1.762.2.1.2.0 and
    1.3.6.1.4.1.762.2.1.3.0. The unit then checks a checksum in the
    data, encoded as two bytes directly after the last byte. This
    checksum is the lowest 16 bits of the sum of all the bytes to be
    written, LSB first. If the checksum matches, the appropriate part
    of the flash is overwritten with the new data, and the unit
    reboots.

    Both flash-reads and writes need to be done with the read/write
    community. An attempt to read them with 'public' fails on a 'no
    such name' error.
    """

    s = session.session(host, community)
    for i in range(0, 68):
        encoded_objid = s.encode_oid([1, 3, 6, 1, 4, 1, 762, 2, 3, 1, 1, i + 1])
        encoded_value = s.encode_string(data[i * 256 : (i + 1) * 256])
        question = s.encode_request("SETREQUEST", [encoded_objid], [encoded_value])
        answer = s.send_and_receive(question)
        # we don't need this - do we?
        (encoded_objids, encoded_values) = s.decode_response(answer)
        objids = map(s.decode_value, encoded_objids)
        values = map(s.decode_value, encoded_values)

    # "writing to flash"
    encoded_objid = s.encode_oid([1, 3, 6, 1, 4, 1, 762, 2, 1, 2, 0])
    encoded_value = s.encode_integer(17336)
    question = s.encode_request("SETREQUEST", [encoded_objid], [encoded_value])
    answer = s.send_and_receive(question)

    # unneeded
    (encoded_objids, encoded_values) = s.decode_response(answer)
    objids = map(s.decode_value, encoded_objids)
    values = map(s.decode_value, encoded_values)

    encoded_objid = s.encode_oid([1, 3, 6, 1, 4, 1, 762, 2, 1, 3, 0])
    encoded_value = s.encode_integer(17336)
    question = s.encode_request("SETREQUEST", [encoded_objid], [encoded_value])
    answer = s.send_and_receive(question)

    # unneeded
    (encoded_objids, encoded_values) = s.decode_response(answer)
    objids = map(s.decode_value, encoded_objids)
    values = map(s.decode_value, encoded_values)