mirror of
https://github.com/apple/container.git
synced 2026-10-14 01:59:18 +00:00
Danny Canter
2bf2cedede
Today we don't resolve symlinks relative to the rootfs of the container as ContainerizationOS.Mount did not handle this. This means trying to mount something at /var/run (which typically is a symlink to /run in most cases) would resolve to /run in the root of the VM. This change adds some logic to handle this. ``` ➜ ./bin/cctl run --kernel bin/kernel.arm64 --mount /Users/dcantah/foo:/var/run/foo bash root@sandbox-vm:/# ls var/run/foo/ howdy ```
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/*
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* Copyright © 2026 Apple Inc. and the Containerization project authors.
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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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* https://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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*/
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#ifndef __OPENAT2_H
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#define __OPENAT2_H
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#include <sys/types.h>
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#ifndef RESOLVE_IN_ROOT
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#define RESOLVE_IN_ROOT 0x10
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#endif
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struct cz_open_how {
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unsigned long long flags;
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unsigned long long mode;
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unsigned long long resolve;
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};
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/// openat2(2) wrapper. Musl does not provide openat2 so we invoke the syscall
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/// directly. Requires Linux 5.6+.
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int CZ_openat2(int dirfd, const char *pathname, struct cz_open_how *how,
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size_t size);
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#endif
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