Makefile fragment for packages using pf.

Approved by agc.

1 files changed, 68 insertions, 0 deletions

diff --git a/mk/pf.buildlink3.mk b/mk/pf.buildlink3.mk
new file mode 100644
index 00000000000..9229f31f57f
--- /dev/null
+++ b/mk/pf.buildlink3.mk
@@ -0,0 +1,68 @@
+# $NetBSD: pf.buildlink3.mk,v 1.1 2008/06/26 20:58:48 peter Exp $
+#
+# Makefile fragment for packages using pf.
+#
+# The following variables are set by this file:
+#
+#   PFVAR_H	The path to the pfvar.h header file.
+#   PFCTL	The path to the pfctl program.
+#   PF_VERSION	The detected PF version (as in OpenBSD).
+#
+
+.if !defined(PF_BUILDLINK3_MK)
+PF_BUILDLINK3_MK=	#defined
+
+.include "../../mk/bsd.fast.prefs.mk"
+
+# Platforms where pf is available on.
+ONLY_FOR_PLATFORM?=	NetBSD-[3-9]*-* OpenBSD-[3-9]*-* FreeBSD-[5-9]*-* \
+			DragonFly-*-*
+
+# Detect the pfvar.h header.
+.if exists(/usr/include/net/pfvar.h)
+_PFVAR_H=	/usr/include/net/pfvar.h	
+.elif exists(/usr/include/net/pf/pfvar.h)
+_PFVAR_H=	/usr/include/net/pf/pfvar.h
+.else
+PKG_FAIL_REASON+=	"Couldn't find pfvar.h header; please make sure that this header is available in /usr/include/net."
+.endif
+
+PFVAR_H?=	${_PFVAR_H}
+PFCTL?=		/sbin/pfctl
+
+# Compute the version number of the PF API by checking for the presence
+# of symbols added in newer versions and store the result in ${PF_VERSION}.
+
+# Default to the first version with PF, which was OpenBSD 3.0.
+PF_VERSION=	3.0
+
+.if !empty(PFVAR_H)
+# OpenBSD 4.2: pf_statelist added
+_PF_4_2!=	${GREP} -c pf_statelist ${PFVAR_H} || ${TRUE}
+# OpenBSD 4.1: PF_OSFP_INET6 added
+_PF_4_1!=	${GREP} -c PF_OSFP_INET6 ${PFVAR_H} || ${TRUE}
+# OpenBSD 3.8: pf_socket_lookup added
+_PF_3_8!=	${GREP} -c pf_socket_lookup ${PFVAR_H} || ${TRUE}
+# OpenBSD 3.7: pf_threshold added
+_PF_3_7!=	${GREP} -c pf_threshold ${PFVAR_H} || ${TRUE}
+# OpenBSD 3.6: pf_cksum_fixup added
+_PF_3_6!=	${GREP} -c pf_cksum_fixup ${PFVAR_H} || ${TRUE}
+# OpenBSD 3.5: pfi_lookup_if added
+_PF_3_5!=	${GREP} -c pfi_lookup_if ${PFVAR_H} || ${TRUE}
+
+.    if ${_PF_4_2} != "0"
+PF_VERSION=	4.2
+.    elif ${_PF_4_1} != "0"
+PF_VERSION=	4.1
+.    elif ${_PF_3_8} != "0"
+PF_VERSION=	3.8
+.    elif ${_PF_3_7} != "0"
+PF_VERSION=	3.7
+.    elif ${_PF_3_6} != "0"
+PF_VERSION=	3.6
+.    elif ${_PF_3_5} != "0"
+PF_VERSION=	3.5
+.    endif
+.endif
+
+.endif  # PF_BUILDLINK3_MK