mirror of
https://github.com/agent-substrate/substrate.git
synced 2026-10-02 03:24:42 +08:00
Bowei Du
22efea18a9
* Move the sandbox DNS code into its own package * Move the network namespace primitives into their own package
42 lines
1.3 KiB
Go
42 lines
1.3 KiB
Go
//go:build linux
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// Copyright 2026 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package netns
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import (
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"errors"
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"testing"
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"golang.org/x/sys/unix"
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)
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// Only EROFS takes the remount path: any other error is reported as it is,
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// and /proc/sys is left as it was found. Remounting it read-only on the way
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// out would break every later write.
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func TestSetSysctlReportsAnUnrelatedError(t *testing.T) {
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err := setSysctl("net/ipv4/ateomnet_no_such_sysctl", "0")
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if !errors.Is(err, unix.ENOENT) {
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t.Fatalf("setSysctl() on a missing key: got %v, want ENOENT", err)
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}
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var st unix.Statfs_t
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if err := unix.Statfs("/proc/sys", &st); err != nil {
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t.Fatalf("statfs /proc/sys: %v", err)
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}
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if st.Flags&unix.ST_RDONLY != 0 {
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t.Error("/proc/sys was left read-only")
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}
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}
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