diff mbox series

[bpf-next,2/9] selftests/bpf: Use unshare_netns helper

Message ID edac8307c8267b0d339117a70efad4f4724fd2ab.1715751995.git.tanggeliang@kylinos.cn (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series add netns helpers | expand

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bpf/vmtest-bpf-next-VM_Test-40 fail Logs for x86_64-llvm-18 / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on x86_64 with llvm-18
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bpf/vmtest-bpf-next-VM_Test-14 fail Logs for s390x-gcc / test (test_progs, false, 360) / test_progs on s390x with gcc
bpf/vmtest-bpf-next-VM_Test-8 fail Logs for aarch64-gcc / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on aarch64 with gcc
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for bpf-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 8 this patch: 8
netdev/build_tools success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 1 maintainers not CCed: kuniyu@amazon.com
netdev/build_clang success Errors and warnings before: 8 this patch: 8
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 8 this patch: 8
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 42 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Geliang Tang May 15, 2024, 5:59 a.m. UTC 
From: Geliang Tang <tanggeliang@kylinos.cn>

The newly added helper unshare_netns() can be used to replace unshare()
and "ip link set dev lo up" in sk_assign.c, btf_skc_cls_ingress.c and
tcp_custom_syncookie.c to simplify the code.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 .../testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c  | 6 +-----
 tools/testing/selftests/bpf/prog_tests/sk_assign.c          | 4 +---
 .../testing/selftests/bpf/prog_tests/tcp_custom_syncookie.c | 5 +----
 3 files changed, 3 insertions(+), 12 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c b/tools/testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c
index ef4d6a3ae423..f697397c641e 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c
@@ -27,15 +27,11 @@  static int prepare_netns(void)
 	LIBBPF_OPTS(bpf_tc_opts, tc_attach,
 		    .prog_fd = bpf_program__fd(skel->progs.cls_ingress));
 
-	if (CHECK(unshare(CLONE_NEWNET), "create netns",
+	if (CHECK(unshare_netns(), "create netns",
 		  "unshare(CLONE_NEWNET): %s (%d)",
 		  strerror(errno), errno))
 		return -1;
 
-	if (CHECK(system("ip link set dev lo up"),
-		  "ip link set dev lo up", "failed\n"))
-		return -1;
-
 	qdisc_lo.ifindex = if_nametoindex("lo");
 	if (!ASSERT_OK(bpf_tc_hook_create(&qdisc_lo), "qdisc add dev lo clsact"))
 		return -1;
diff --git a/tools/testing/selftests/bpf/prog_tests/sk_assign.c b/tools/testing/selftests/bpf/prog_tests/sk_assign.c
index 0b9bd1d6f7cc..56df5861059f 100644
--- a/tools/testing/selftests/bpf/prog_tests/sk_assign.c
+++ b/tools/testing/selftests/bpf/prog_tests/sk_assign.c
@@ -47,12 +47,10 @@  configure_stack(void)
 		return false;
 
 	/* Move to a new networking namespace */
-	if (CHECK_FAIL(unshare(CLONE_NEWNET)))
+	if (CHECK_FAIL(unshare_netns()))
 		return false;
 
 	/* Configure necessary links, routes */
-	if (CHECK_FAIL(system("ip link set dev lo up")))
-		return false;
 	if (CHECK_FAIL(system("ip route add local default dev lo")))
 		return false;
 	if (CHECK_FAIL(system("ip -6 route add local default dev lo")))
diff --git a/tools/testing/selftests/bpf/prog_tests/tcp_custom_syncookie.c b/tools/testing/selftests/bpf/prog_tests/tcp_custom_syncookie.c
index eaf441dc7e79..07817d9c039c 100644
--- a/tools/testing/selftests/bpf/prog_tests/tcp_custom_syncookie.c
+++ b/tools/testing/selftests/bpf/prog_tests/tcp_custom_syncookie.c
@@ -32,12 +32,9 @@  static struct test_tcp_custom_syncookie_case {
 
 static int setup_netns(void)
 {
-	if (!ASSERT_OK(unshare(CLONE_NEWNET), "create netns"))
+	if (!ASSERT_OK(unshare_netns(), "create netns"))
 		return -1;
 
-	if (!ASSERT_OK(system("ip link set dev lo up"), "ip"))
-		goto err;
-
 	if (!ASSERT_OK(write_sysctl("/proc/sys/net/ipv4/tcp_ecn", "1"),
 		       "write_sysctl"))
 		goto err;