import xdp-tools-1.1.1-2.el8

.gitignore

@@ -1 +1 @@
-SOURCES/xdp-tools-1.0.1.tar.gz
+SOURCES/xdp-tools-1.1.1.tar.gz

.xdp-tools.metadata

@@ -1 +1 @@
-788f65a4ee7c448c20ae8ef125317d3b00226733 SOURCES/xdp-tools-1.0.1.tar.gz
+cce9f7c3a5275a78056a88cf940413cce1e4776b SOURCES/xdp-tools-1.1.1.tar.gz

SOURCES/xdp-tools-1.1.1-fix-libxdp-man-page.patch

@@ -0,0 +1,42 @@
+commit 98a7fdb7c820a8474c9a6d836f4551eac050bd54
+Author: Toke Høiland-Jørgensen <toke@redhat.com>
+Date:   Wed Feb 10 16:28:57 2021 +0100
+
+    libxdp/README: Update documentation with support for incremental attach
+    
+    Seems I forgot to update the libxdp documentation when adding support for
+    incrementally attaching multiple programs. Fix that oversight and note the
+    limitations in terms of kernel versions and dispatcher compatibility.
+    
+    Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
+
+diff --git a/lib/libxdp/README.org b/lib/libxdp/README.org
+index 5a930813c7d9..045348bb1d9a 100644
+--- a/lib/libxdp/README.org
++++ b/lib/libxdp/README.org
+@@ -76,13 +76,18 @@ metadata* section below). Because the loading process involves modifying the
+ attach type of the program, the attach functions only work with =struct
+ xdp_program= objects that have not yet been loaded into the kernel.
+ 
+-Due to limitations in the kernel support, it is currently not possible to attach
+-another program to an already-attached list of programs. As such, the only way
+-to actually run multiple programs on a single interface is to attach them all at
+-the same time with =xdp_program__attach_multi()=. It is expected that this
+-restriction will be lifted in an upcoming kernel version, after which
+-=xdp_program__attach()= will simply add the program being loaded into the
+-existing chain of programs running on the interface.
++When using the attach functions to attach to an interface that already has an
++XDP program loaded, libxdp will attempt to add the program to the list of loaded
++programs. However, this may fail, either due to missing kernel support, or
++because the already-attached program was not loaded using a dispatcher
++compatible with libxdp. If the kernel support for incremental attach (merged in
++kernel 5.10) is missing, the only way to actually run multiple programs on a
++single interface is to attach them all at the same time with
++=xdp_program__attach_multi()=. If the existing program is not an XDP dispatcher,
++that program will have to be detached from the interface before libxdp can
++attach a new one. This can be done by calling =xdp_program__detach()= with a
++reference to the loaded program; but note that this will of course break any
++application relying on that other XDP program to be present.
+ 
+ * Program metadata
+ 

SOURCES/xdp-tools-1.1.1-xdp-filter-load-check.patch

@@ -0,0 +1,30 @@
+commit 5fb355a7c9a1fdd5842c4b9dbd5e48ba6b767921
+Author: Toke Høiland-Jørgensen <toke@redhat.com>
+Date:   Wed Feb 10 16:59:08 2021 +0100
+
+    xdp-filter: Check whether we have already been loaded
+    
+    Now that we can attach multiple programs to an interface, xdp-filter will
+    happily load itself multiple times on the same interface. Fix that by
+    checking if it's already loaded before attempting a new load.
+    
+    Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
+
+diff --git a/xdp-filter/xdp-filter.c b/xdp-filter/xdp-filter.c
+index 08cfd722e169..895dbd5750b2 100644
+--- a/xdp-filter/xdp-filter.c
++++ b/xdp-filter/xdp-filter.c
+@@ -268,6 +268,13 @@ int do_load(const void *cfg, const char *pin_root_path)
+ 	}
+ 	features |= opt->policy_mode;
+ 
++	err = get_pinned_program(&opt->iface, pin_root_path, NULL, &p);
++	if (!err) {
++		pr_warn("xdp-filter is already loaded on %s\n", opt->iface.ifname);
++		xdp_program__close(p);
++		return EXIT_FAILURE;
++	}
++
+ 	print_flags(featbuf, sizeof(featbuf), print_features, features);
+ 	pr_debug("Looking for eBPF program with features %s\n", featbuf);
+ 

SPECS/xdp-tools.spec

@@ -1,12 +1,14 @@
 Name:             xdp-tools
-Version:          1.0.1
+Version:          1.1.1
-Release:          1%{?dist}
+Release:          2%{?dist}
 Summary:          Utilities and example programs for use with XDP
-%global _soversion 1.0.0
+%global _soversion 1.1.0
 
 License:          GPLv2
 URL:              https://github.com/xdp-project/%{name}
 Source0:          https://github.com/xdp-project/%{name}/releases/download/v%{version}/xdp-tools-%{version}.tar.gz
+Patch0:           xdp-tools-1.1.1-fix-libxdp-man-page.patch
+Patch1:           xdp-tools-1.1.1-xdp-filter-load-check.patch
 
 BuildRequires:    libbpf-devel
 BuildRequires:    elfutils-libelf-devel
@@ -38,6 +40,7 @@ Utilities and example programs for use with XDP
 %package -n libxdp
 Summary:          XDP helper library
 Requires:         kernel-headers
+Requires:         libbpf >= 0.2.0-1
 
 %package -n libxdp-devel
 Summary:          Development files for libxdp
@@ -85,6 +88,7 @@ export MANDIR='%{_mandir}'
 export DATADIR='%{_datadir}'
 export HDRDIR='%{_includedir}/xdp'
 make install V=1
+cd $DESTDIR/$LIBDIR && ln -vs libxdp.so.%{_soversion} libxdp.so.1.0.0
 
 %files
 %{_sbindir}/xdp-filter
@@ -99,6 +103,7 @@ make install V=1
 %files -n libxdp
 %{_libdir}/libxdp.so.1
 %{_libdir}/libxdp.so.%{_soversion}
+%{_libdir}/libxdp.so.1.0.0
 %{_libdir}/bpf/xdp-dispatcher.o
 %{_mandir}/man3/*
 
@@ -111,6 +116,12 @@ make install V=1
 %{_libdir}/pkgconfig/libxdp.pc
 
 %changelog
+* Wed Feb 3 2021 Toke Høiland-Jørgensen <toke@redhat.com> 1.1.1-1
+- Upstream version bump
+
+* Mon Jan 4 2021 Toke Høiland-Jørgensen <toke@redhat.com> 1.1.0-1
+- Upstream version bump
+
 * Thu Aug 20 2020 Toke Høiland-Jørgensen <toke@redhat.com> 1.0.1-1
 - Upstream version bump