From: Geliang Tang <tanggeliang@kylinos.cn>
v12:
- squash patch 4 and patch 6 into one.
- use TCP_IS_MPTCP instead of TCP_CONGESTION.
v11:
- fix building errors in v10.
- update patch 5, change bpf test IP addresses more like that of mptcp
join selftests from:
#define ADDR_1 "10.0.1.1"
#define ADDR_2 "10.0.1.2"
#define ADDR_3 "10.0.1.3"
#define ADDR_4 "10.0.1.4"
to
#define ADDR_1 "10.0.1.1"
#define ADDR_2 "10.0.2.1"
#define ADDR_3 "10.0.3.1"
#define ADDR_4 "10.0.4.1"
This ensures that it can be expanded to two namespaces in the future.
v10:
- rename bpf prog to "mptcp_bpf_iters.c" and change it as
"cgroup/getsockopt" type. Since another bpf_iter "mptcp_address",
to traverse all address entries on userspace_pm_local_addr_list of
an MPTCP socket for implementing the MPTCP BPF path manager, will be
added in the next set. The test program for "mptcp_address" bpf_iter
will be added into this "mptcp_bpf_iters.c" file too and also defined
as "cgroup/getsockopt" type.
- change all bpf kfunc static as Matt suggested.
- drop mptcp_subflow_active and mptcp_subflow_set_scheduled from the
test program as Matt suggested.
v9:
- rename bpf prog to "mptcp_bpf_iters_subflow.c"
- drop the helper bpf_mptcp_sk(), it's not used in this test.
v8:
- Make the test prog in patch 4 more like a bpf packet scheduler.
- Export more mptcp helpers into BPF in patch 1.
v7:
- As Martin recently replied, mptcp_stubflow bpf_iter can still be
used in tracing. So go back to the tracing selftest.
v6:
- add KF_TRUSTED_ARGS flag in patch 2 (Andrii, Martin), then acquire
and release helpers (patch 3) are needed to be implemented.
- test mptcp_subflow bpf_iter in "cgroup/getsockopt" (patch 5),
instead of testing them in "tracing" (Martin).
v5:
- update patch 1 as Andrii suggested: if msk is NULL, initialize
kit->msk to NULL in _new() and check it in _next().
v4:
- squash patch 1/5 and 3/5 in v3 together as Matt suggested.
- a new squash-to patch to drop mptcp_subflow_active declaration in
bpf_burst.
v3:
- drop bpf_iter__mptcp_subflow, __diag_push, __diag_pop and
__diag_ignore_all
- drop declarations for bpf kfuncs
v2:
- update patch 1 as Martin and Andrii suggested.
- fix warnings and errors reported by MPTCP CI.
This patch set adds a mptcp_subflow type bpf_iter, and self tests.
Geliang Tang (8):
bpf: Register mptcp common kfunc set
bpf: Add mptcp_subflow bpf_iter
bpf: Acquire and release mptcp socket
selftests/bpf: More endpoints for endpoint_init
selftests/bpf: Add mptcp_subflow bpf_iter subtest
Squash to "selftests/bpf: Add bpf scheduler test"
Revert "bpf: Export more bpf_burst related functions"
Squash to "bpf: Add bpf_mptcp_sched_kfunc_set"
net/mptcp/bpf.c | 99 ++++++++++++-
net/mptcp/protocol.h | 1 -
.../testing/selftests/bpf/bpf_experimental.h | 7 +
.../testing/selftests/bpf/prog_tests/mptcp.c | 131 +++++++++++++++++-
tools/testing/selftests/bpf/progs/mptcp_bpf.h | 9 ++
.../selftests/bpf/progs/mptcp_bpf_iters.c | 64 +++++++++
6 files changed, 298 insertions(+), 13 deletions(-)
create mode 100644 tools/testing/selftests/bpf/progs/mptcp_bpf_iters.c
--
2.43.0