Changes:
* Remove the initial address argument from patty_ax25_if_new()
* Implement patty_ax25_if_addr_set() to set the AX.25 address of an
interface at any time
Changes:
* Remove interface name argument from patty_ax25_if_new()
* Add interface name argument to patty_ax25_server_if_add()
* Add interface name argument to patty_daemon_if_add()
* In src/server.c, implement 'struct if_entry' to hold the interface
name, file descriptor, and pointer to a patty_ax25_if object, to
recouple names to their respective interfaces
* Add a return argument to patty_bin_if_create() to store a pointer
to a new interface name created from a declaration
Implement an APRS-IS interface type which is capable of receiving all
APRS-IS traffic which can be represented in AX.25 frames; currently,
there are no provisions for handling extended features such as
non-numeric SSIDs, nor a client nor server which facilitate direct
APRS-IS communication. Presently, APRS-IS traffic cannot be sent from
this interface.
Changes:
* Add patty_ax25_aprs_is driver type in src/aprs_is.c
* Implement 'aprs-is' interface configuration type in bin/if.c; make
separate, smaller state machines for handling base interface
config, KISS, and APRS-IS interface config
Changes:
* Implement patty_ax25_if_driver type, providing a vtable with
pointers to methods implementing an AX.25 interface PHY
* Implement patty_ax25_if_name() to return a pointer to the name
string of an AX.25 interface
* Decouple patty_kiss_tnc from src/if.c using patty_ax25_if_driver
* Remove port input/output arguments from patty_kiss_tnc_send()
and patty_kiss_tnc_recv(), respectively; use 0 as the default,
but keep the port argument in patty_kiss_frame_send()
* Implement patty_ax25_if_fd() to return file descriptor backing a
PHY; use this rather than patty_kiss_tnc_fd() in src/server.c to
further decouple interfaces from their implementation
* Remove 'enum patty_ax25_if_type' type; refactor constructor
patty_ax25_if_new() to no longer take this as an argument, but
rather a patty_ax25_if_driver to use to instantiate the PHY
with the information pointer passed
* Break out patty_kiss_tnc code from src/kiss.c into src/tnc.c,
leaving only patty_kiss_frame_send() in the original; this is
needed to prevent a cyclic dependency within patty_ax25_sock and
other areas
* Rename patty_bin_if_config() to patty_bin_if_create(); a separate
patty_bin_if_config() will likely be created later as necessary
to change an existing interface
* Split PHY-specific interface configuration code into separate
delegates in bin/if.c
* Implement usage of patty_error to better capture internal error
states not currently representable with semantic error numbers
while configuring and instantiating PHYs
* Pass patty_error object to patty_bin_kiss_config() to receive
detailed error information
Changes:
* Move network interface configuration logic from bin/pattyd.c to
bin/if.c; implement a more robust state machine
* Move KISS TNC configuration code from bin/pattyd.c to bin/kiss.c
* Ensure configuration file name, line number, and erroneous part
of an expression are clearly indicated upon failure
Other changes:
* Improve bin/Makefile to rebuild objects when accompanying header
files change
* Refer to HEADERS_SUBDIR, not HEADER_SUBDIR, in Makefiles
