SNDCP: add SNDCP-XID encoder/decoder and unit test
The SNDCP-XID (or layer-3 xid) is used to exchange layer-3 parameters
such as compression. The encoder encodes a bytestream that is then
sent as regular XID field from LLC.
We will need the SNDCP-XID to negotiate the parameters for our
upcomming GPRS data and header compression features
Change-Id: If2d63fe2550864cafef3156b1dc0629037c49c1e
diff --git a/openbsc/src/gprs/Makefile.am b/openbsc/src/gprs/Makefile.am
index 59136bd..3b58399 100644
--- a/openbsc/src/gprs/Makefile.am
+++ b/openbsc/src/gprs/Makefile.am
@@ -72,6 +72,7 @@
gprs_sgsn.c \
gprs_sndcp.c \
gprs_sndcp_vty.c \
+ gprs_sndcp_xid.c \
sgsn_main.c \
sgsn_vty.c \
sgsn_libgtp.c \
@@ -98,6 +99,7 @@
$(LIBCRYPTO_LIBS) \
-lrt \
-lgtp \
+ -lm \
$(NULL)
if BUILD_IU
osmo_sgsn_LDADD += \