a85b5759f3
These files were pulled from the 1.6.3 release tarball. This new version builds against OpenSSL version 1.1 which will be the default in the new Debian Stable which is due to be released RealSoonNow (tm).
228 lines
6.1 KiB
ReStructuredText
228 lines
6.1 KiB
ReStructuredText
Scriptable functions
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====================
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Network
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-------
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.. function:: ntohs(netshort)
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This subroutine converts values between the host and network byte order.
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Specifically, **ntohs()** converts 16-bit quantities from network byte order
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to host byte order.
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:param netshort: 16-bit short addr
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:rtype: converted addr
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Cache
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-----
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.. function:: storeQueryInCache(qstate, qinfo, msgrep, is_referral)
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Store pending query in local cache.
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:param qstate: :class:`module_qstate`
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:param qinfo: :class:`query_info`
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:param msgrep: :class:`reply_info`
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:param is_referal: integer
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:rtype: boolean
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.. function:: invalidateQueryInCache(qstate, qinfo)
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Invalidate record in local cache.
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:param qstate: :class:`module_qstate`
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:param qinfo: :class:`query_info`
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EDNS options
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------------
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.. function:: register_edns_option(env, code, bypass_cache_stage=False, no_aggregation=False)
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Register EDNS option code.
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:param env: :class:`module_env`
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:param code: option code(integer)
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:param bypass_cache_stage: whether to bypass the cache response stage
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:param no_aggregation: whether this query should be unique
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:return: ``1`` if successful, ``0`` otherwise
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:rtype: integer
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.. function:: edns_opt_list_find(list, code)
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Find the EDNS option code in the EDNS option list.
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:param list: linked list of :class:`edns_option`
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:param code: option code (integer)
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:return: the edns option if found or None
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:rtype: :class:`edns_option` or None
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.. function:: edns_opt_list_remove(list, code);
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Remove an ENDS option code from the list.
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.. note:: All :class:`edns_option` with the code will be removed
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:param list: linked list of :class:`edns_option`
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:param code: option code (integer)
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:return: ``1`` if at least one :class:`edns_option` was removed, ``0`` otherwise
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:rtype: integer
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.. function:: edns_opt_list_append(list, code, data, region)
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Append given EDNS option code with data to the list.
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:param list: linked list of :class:`edns_option`
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:param code: option code (integer)
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:param data: EDNS data. **Must** be a :class:`bytearray`
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:param region: :class:`regional`
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.. function:: edns_opt_list_is_empty(list)
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Check if an EDNS option list is empty.
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:param list: linked list of :class:`edns_option`
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:return: ``1`` if list is empty, ``0`` otherwise
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:rtype: integer
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Inplace callbacks
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-----------------
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.. function:: inplace_cb_reply(qinfo, qstate, rep, rcode, edns, opt_list_out, region)
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Function prototype for callback functions used in
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`register_inplace_cb_reply`_, `register_inplace_cb_reply_cache`_,
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`register_inplace_cb_reply_local` and `register_inplace_cb_reply_servfail`.
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:param qinfo: :class:`query_info`
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:param qstate: :class:`module_qstate`
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:param rep: :class:`reply_info`
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:param rcode: return code (integer), check ``RCODE_`` constants.
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:param edns: :class:`edns_data`
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:param opt_list_out: :class:`edns_option`. EDNS option list to append options to.
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:param region: :class:`regional`
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.. function:: register_inplace_cb_reply(py_cb, env)
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Register py_cb as an inplace reply callback function.
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:param py_cb: Python function that follows `inplace_cb_reply`_'s prototype. **Must** be callable.
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:param env: :class:`module_env`
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:return: True on success, False otherwise
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:rtype: boolean
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.. function:: register_inplace_cb_reply_cache(py_cb, env)
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Register py_cb as an inplace reply_cache callback function.
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:param py_cb: Python function that follows `inplace_cb_reply`_'s prototype. **Must** be callable.
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:param env: :class:`module_env`
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:return: True on success, False otherwise
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:rtype: boolean
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.. function:: register_inplace_cb_reply_local(py_cb, env)
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Register py_cb as an inplace reply_local callback function.
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:param py_cb: Python function that follows `inplace_cb_reply`_'s prototype. **Must** be callable.
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:param env: :class:`module_env`
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:return: True on success, False otherwise
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:rtype: boolean
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.. function:: register_inplace_cb_reply_servfail(py_cb, env)
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Register py_cb as an inplace reply_servfail callback function.
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:param py_cb: Python function that follows `inplace_cb_reply`_'s prototype. **Must** be callable.
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:param env: :class:`module_env`
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:return: True on success, False otherwise
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:rtype: boolean
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Logging
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-------
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.. function:: verbose(level, msg)
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Log a verbose message, pass the level for this message.
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No trailing newline is needed.
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:param level: verbosity level for this message, compared to global verbosity setting.
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:param msg: string message
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.. function:: log_info(msg)
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Log informational message. No trailing newline is needed.
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:param msg: string message
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.. function:: log_err(msg)
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Log error message. No trailing newline is needed.
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:param msg: string message
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.. function:: log_warn(msg)
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Log warning message. No trailing newline is needed.
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:param msg: string message
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.. function:: log_hex(msg, data, length)
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Log a hex-string to the log. Can be any length.
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performs mallocs to do so, slow. But debug useful.
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:param msg: string desc to accompany the hexdump.
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:param data: data to dump in hex format.
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:param length: length of data.
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.. function:: log_dns_msg(str, qinfo, reply)
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Log DNS message.
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:param str: string message
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:param qinfo: :class:`query_info`
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:param reply: :class:`reply_info`
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.. function:: log_query_info(verbosity_value, str, qinf)
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Log query information.
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:param verbosity_value: see constants
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:param str: string message
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:param qinf: :class:`query_info`
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.. function:: regional_log_stats(r)
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Log regional statistics.
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:param r: :class:`regional`
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Debugging
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---------
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.. function:: strextstate(module_ext_state)
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Debug utility, module external qstate to string.
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:param module_ext_state: the state value.
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:rtype: descriptive string.
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.. function:: strmodulevent(module_event)
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Debug utility, module event to string.
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:param module_event: the module event value.
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:rtype: descriptive string.
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.. function:: ldns_rr_type2str(atype)
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Convert RR type to string.
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.. function:: ldns_rr_class2str(aclass)
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Convert RR class to string.
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