Import gprsdecode utility from SRLabs

This change introduces a modified version of gprsdecode utility,
which is intended to decode the GPRS burst captures and forward
decoded packets to the GSMTAP sink.

The following modifications were made:

  - use shared libosmocoding library for GSM 05.03 coding;
  - use optget for command line options parsing;
  - use a single application select loop;
  - use GNU automake as the build system;
  - add regression tests (GNU autotest);
  - clean up and comment the code;
  - add license headers;

The code is based on work of SRLabs:

  https://srlabs.de/
  git://git.srlabs.de/gprsdecode.git

Related: OS#1672
Change-Id: I12234d37c66b83b8abd60f7511fa1d7837db1856

1 files changed, 36 insertions, 0 deletions

diff --git a/src/host/gprsdecode/Makefile.am b/src/host/gprsdecode/Makefile.am
new file mode 100644
index 00000000..542d54b6
--- /dev/null
+++ b/src/host/gprsdecode/Makefile.am
@@ -0,0 +1,36 @@
+AUTOMAKE_OPTIONS = foreign dist-bzip2 1.6
+SUBDIRS = tests
+
+AM_CPPFLAGS = \
+	$(all_includes) \
+	$(NULL)
+
+AM_CFLAGS = \
+	-Wall -O3 \
+	-Wno-missing-braces \
+	$(LIBOSMOGSM_CFLAGS) \
+	$(LIBOSMOCORE_CFLAGS) \
+	$(LIBOSMOCODING_CFLAGS) \
+	$(NULL)
+
+bin_PROGRAMS = gprsdecode
+
+gprsdecode_SOURCES = \
+	gsmtap.c \
+	rlcmac.c \
+	gprs.c \
+	main.c \
+	$(NULL)
+
+noinst_HEADERS = \
+	l1ctl_proto.h \
+	rlcmac.h \
+	gsmtap.h \
+	gprs.h \
+	$(NULL)
+
+gprsdecode_LDADD = \
+	$(LIBOSMOCODING_LIBS) \
+	$(LIBOSMOCORE_LIBS) \
+	$(LIBOSMOGSM_LIBS) \
+	$(NULL)