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a6599abdea
Setting IFA_F_NODAD flag for IPv6 addresses to add to loopback is
unnecessary. Duplicate Address Detection does not happen on loopback
device.
Also, passing 'nodad' flag to 'ip address' breaks libbpf CI, which runs in
an environment with BusyBox implementation of 'ip' command, that doesn't
understand this flag.
Fixes:
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.. | ||
benchs | ||
gnu | ||
map_tests | ||
prog_tests | ||
progs | ||
verifier | ||
.gitignore | ||
bench.c | ||
bench.h | ||
bpf_legacy.h | ||
bpf_rand.h | ||
bpf_rlimit.h | ||
bpf_tcp_helpers.h | ||
bpf_util.h | ||
cgroup_helpers.c | ||
cgroup_helpers.h | ||
config | ||
flow_dissector_load.c | ||
flow_dissector_load.h | ||
get_cgroup_id_user.c | ||
Makefile | ||
netcnt_common.h | ||
network_helpers.c | ||
network_helpers.h | ||
README.rst | ||
tcp_client.py | ||
tcp_server.py | ||
test_bpftool.py | ||
test_bpftool.sh | ||
test_bpftool_build.sh | ||
test_btf.c | ||
test_btf.h | ||
test_cgroup_storage.c | ||
test_cpp.cpp | ||
test_current_pid_tgid_new_ns.c | ||
test_dev_cgroup.c | ||
test_flow_dissector.c | ||
test_flow_dissector.sh | ||
test_ftrace.sh | ||
test_iptunnel_common.h | ||
test_kmod.sh | ||
test_lirc_mode2.sh | ||
test_lirc_mode2_user.c | ||
test_lpm_map.c | ||
test_lru_map.c | ||
test_lwt_ip_encap.sh | ||
test_lwt_seg6local.sh | ||
test_maps.c | ||
test_maps.h | ||
test_netcnt.c | ||
test_offload.py | ||
test_progs.c | ||
test_progs.h | ||
test_select_reuseport_common.h | ||
test_skb_cgroup_id.sh | ||
test_skb_cgroup_id_user.c | ||
test_sock.c | ||
test_sock_addr.c | ||
test_sock_addr.sh | ||
test_sock_fields.c | ||
test_socket_cookie.c | ||
test_sockmap.c | ||
test_stub.c | ||
test_sysctl.c | ||
test_tag.c | ||
test_tc_edt.sh | ||
test_tc_tunnel.sh | ||
test_tcp_check_syncookie.sh | ||
test_tcp_check_syncookie_user.c | ||
test_tcpbpf.h | ||
test_tcpbpf_user.c | ||
test_tcpnotify.h | ||
test_tcpnotify_user.c | ||
test_tunnel.sh | ||
test_verifier.c | ||
test_verifier_log.c | ||
test_xdp_meta.sh | ||
test_xdp_redirect.sh | ||
test_xdp_veth.sh | ||
test_xdp_vlan.sh | ||
test_xdp_vlan_mode_generic.sh | ||
test_xdp_vlan_mode_native.sh | ||
test_xdping.sh | ||
testing_helpers.c | ||
testing_helpers.h | ||
trace_helpers.c | ||
trace_helpers.h | ||
urandom_read.c | ||
with_addr.sh | ||
with_tunnels.sh | ||
xdping.c | ||
xdping.h |
================== BPF Selftest Notes ================== General instructions on running selftests can be found in `Documentation/bpf/bpf_devel_QA.rst`_. Additional information about selftest failures are documented here. bpf_iter test failures with clang/llvm 10.0.0 ============================================= With clang/llvm 10.0.0, the following two bpf_iter tests failed: * ``bpf_iter/ipv6_route`` * ``bpf_iter/netlink`` The symptom for ``bpf_iter/ipv6_route`` looks like .. code-block:: c 2: (79) r8 = *(u64 *)(r1 +8) ... 14: (bf) r2 = r8 15: (0f) r2 += r1 ; BPF_SEQ_PRINTF(seq, "%pi6 %02x ", &rt->fib6_dst.addr, rt->fib6_dst.plen); 16: (7b) *(u64 *)(r8 +64) = r2 only read is supported The symptom for ``bpf_iter/netlink`` looks like .. code-block:: c ; struct netlink_sock *nlk = ctx->sk; 2: (79) r7 = *(u64 *)(r1 +8) ... 15: (bf) r2 = r7 16: (0f) r2 += r1 ; BPF_SEQ_PRINTF(seq, "%pK %-3d ", s, s->sk_protocol); 17: (7b) *(u64 *)(r7 +0) = r2 only read is supported This is due to a llvm BPF backend bug. The fix https://reviews.llvm.org/D78466 has been pushed to llvm 10.x release branch and will be available in 10.0.1. The fix is available in llvm 11.0.0 trunk.