initial commit

This patch bootstrap the new nft-sync software. Basically, this
software aims to support two different setups:

1) Rule-set repository server. The software serves the nft rule-set to
   clients that request the ruleset.

   Basically from the system that acts as repository, you have to run:

   # nft-sync -c ../contrib/nft-sync.conf.server

   Then, from the client:

   # nft-sync -c ../contrib/nft-sync.conf.client --fetch

   Which displays the nft rule-set in the standard output, so you
   can inspect the nft rule-set.

   Alternatively, the client can also retrieve and apply the nft
   rule-set using the pull command instead:

   # nft-sync -c ../contrib/nft-sync.conf.client --pull

   [ Note that this command above does not work in this bootstrap yet ]

2) Rule-set synchronization: In case of primary-backup and multiprimary
   firewall configurations, the software makes sure that the firewall
   cluster is deploying the same filtering policy. In this case, you have
   to launch the process:

   # nft-sync -c ../contrib/nft-sync.conf --sync

   [ Note that this command above does not work in this bootstrap yet ]

This bootstrap provides the basic infrastructure as a proof-of-concept.
Many of the necessary features are still lacking:

* Implement --sync and --pull commands.

* Interaction with nft through libnftnl, which allows the software to
  retrieve the local nft rule-set, as well as to parse it and apply it.

* SSL support, specifically the repository mode needs it to make sure
  nobody can steal your filtering policy from the network.

* IPv6 support.

* Allow to serve different rule-sets in the repository mode.

And many others that will be added progressively.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..5c09b24
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,26 @@
+include $(top_srcdir)/Make_global.am
+
+sbin_PROGRAMS = nft-sync
+
+AM_YFLAGS = -d
+
+CLEANFILES = config-parser.c		\
+	     config-scanner.c
+
+nft_sync_SOURCES = event.c		\
+		   logging.c		\
+		   msg_buff.c		\
+		   server.c		\
+		   client.c		\
+		   tcp.c		\
+		   timer.c		\
+		   main.c		\
+		   fd.c			\
+		   config-parser.y	\
+		   config-scanner.l
+nft_sync_LDADD = ${LIBMNL_LIBS} ${LIBNFTNL_LIBS} -lev
+
+# yacc and lex generate dirty code
+config-scanner.o config-parser.o: AM_CFLAGS += -Wno-missing-prototypes -Wno-missing-declarations -Wno-implicit-function-declaration -Wno-nested-externs -Wno-undef -Wno-redundant-decls
+
+EXTRA_DIST = config-parser.h