This implementation works on a WR Switch but does not yet integrate all
required functionalities. List of current modifications :
- Implementation of the L1SYNC protocol
- Modifications of the standard protocol: new hook, TS calculation
- Change WRS to integrate HA
- HAL adaptations
- ...

It was by me fore me, and I'm not using it. Simplify.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Otherwise, if we have two PTP ports for the same interface, like
Ethernet and UDP, we are not able to tell which message is for which.

This now works as expected:

./ppsi -C "port eth0;  iface eth0; role master; proto raw; diagnostics 111" \
       -C "port eth0u; iface eth0; role master; proto udp; diagnostics 111"
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This is a rewrite of the configuration parser, more based on data
structures se we'll soon be able to read more than one configuration
file (to add special cases while developing) and protocol extensions
will be able to extend the table of allowed options.

Both the configuration file format and the layout of the code calling
lib/conf.c::pp_config_file() is unchanged in this commit. This means
that even if you enable config diagnostics on the command line it
won't have effect, because the config file is parsed before the
command line. This is fixed by a later commit.

The only visible change in this commit is that "port" is allowed as a
synonim for "link", to be deprecated soon (but it will not be removed
from the parsing of the config file). Thus, pp_instance->link_name is
renamed to port_name.

The compiled size of this commit is the same as the previous one.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Also, add "config" to the list of diag things, to allow tracing config
file errors (used in later commits).
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This changes all "Name Surname for CERN" to "Copyright CERN, author
Name Surname".  This is trivial and makes no change, with a few
expections:

- all trivial Makefiles that had "for CERN" lines have now no
attributions, as they are trivial anyways.

- a few unrepresented files have not the copyright notice (especially
ptpdump, that I wrote in 2012).

- a few "for CERN" remain in subprojects, where I didn't touch anyrhing
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

if the user passes "-DDIAG_PUTS=sth~ in USER_CFLAGS at build time, al
diagnostic messages are directed to this special puts (through sprintf
to a local buffer) instead of going to the normal printf (and thus the
default puts).

This is going to be used by wrpc-sw, to leave the default output channel
clean for the user shell.

Unfortunately, frame dumps cannot go to this special puts, as
lib/dump-funcs.c just call printf and I don't know how to fix that
without a massive change in the code.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Due to multilink needs, those variables are no more global but can be defined
as a different setting for each port. They will be set in a /etc/ppsi.conf file,
which is not yet handled, but will be soon.
struct pp_runtime_opts will contain only multiport settings.
If the /etc/ppsi.conf file is not found or not handled (like it is at present),
ppsi accepts and properly handles the same cmd line options as in the past.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>