The PPP package contains a number of configuration options that may be
changed to affect its behaviour.
CYGNUM_PPP_PPPD_THREAD_PRIORITY
The PPP system contains two threads, One is used for receiving
data from the link and processing control packets. The other is
used to transmit data asynchronously to the link when it cannot be
completed synchronously. The receive thread runs at the priority
given here, and the transmit thread runs at the next lower
priority. The exact priority needed here depends on the
importance of the PPP subsystem relative to the rest of the
system. The default is to put it in the middle of the priority
range to provide reasonable response without impacting genuine
high priority threads.
Default value: CYGNUM_KERNEL_SCHED_PRIORITIES/2
CYGPKG_PPP_DEBUG_WARN_ONLY
The runtime debug option enables logging of
high level debug messages. Too many of these can interfere with
the PPP device and may result in missed messages. This is because
these messages are emitted via the diag_printf() mechanism, which
disables interrupts while it prints. By default, therefore, we
only report errors and warnings, and not all events. Setting this
option to zero will enable the logging of all events.
Default value: 1
CYGPKG_PPP_AUTH_DEFAULT_USER
This option gives the default value for the user name used to
initialize the user field in the PPP
options.
Default value: "eCos"
CYGPKG_PPP_AUTH_DEFAULT_PASSWD
This option gives the default value for the password used to
initialize the passwd field in the PPP
options.
Default value: "secret"
CYGPKG_PPP_DEFAULT_DIALUP_NUMBER
This option provides a default dialup number for use in
chat scripts. This value is not used anywhere
in the PPP package, but is provided to complete the information
needed, alongside the user name and password, for accessing a
typical dialup server.
Default value: "5551234"
CYGPKG_PPP_PAP
This component enables the inclusion of PAP authentication
support.
Default value: 1
CYGPKG_PPP_CHAP
This component enables the inclusion of CHAT authentication
support.
Default value: 1
CYGPKG_PPP_COMPRESSION
This component provides control over PPP compression
features. WARNING: at present there are problems with this option,
and and in any case the compression code needs to allocate large
amounts of memory. Hence this option is currently disabled and
should remain so.
Default value: 0
PPP_BSDCOMP
This option enables inclusion of BSD compression into the PPP
protocol.
Default value: 0
PPP_DEFLATE
This option enables inclusion of ZLIB compression into the PPP
protocol.
Default value: 0
CYGPKG_PPP_CHAT
This component enables the inclusion of a simple scripting system
to bring up PPP connections. It implements a subset of the
chat scripting language.
Default value: 1
CYGNUM_PPP_CHAT_ABORTS_MAX
This option defines the maximum number of ABORT
strings that the CHAT system will store.
Default value: 10
CYGNUM_PPP_CHAT_ABORTS_SIZE
This option defines the maximum size of each
ABORT strings that the chat
system will store.
Default value: 20
CYGNUM_PPP_CHAT_STRING_LENGTH
This option defines the maximum size of any expect or reply
strings that the chat system will be given.
Default value: 256
CYGPKG_PPP_TEST_DEVICE
This option defines the serial device to be used for PPP test
programs.
Default value: "/dev/ser0"
CYGPKG_PPP_TESTS_AUTOMATE
This option enables automated testing features in certain test
programs. These programs will interact with a test server at the
remote end of the serial link to run a variety of tests in
different conditions. Without this option most tests default to
running a single test instance and are suitable for being run by
hand for debugging purposes.
Default value: 0
CYGDAT_PPP_TEST_BAUD_RATES
This option supplies a list of baud rates at which certain tests
will run if the CYGPKG_PPP_TESTS_AUTOMATE
option is set.
