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machined: when copying files from/to userns containers chown to root

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This changes the file copy logic of machined to set the UID/GID of all
copied files to 0 if the host and container do not share the same user
namespace.

Fixes: #4078
This commit is contained in:
Lennart Poettering
2017-02-17 10:22:28 +01:00
parent 1c876927e4
commit d01cd40196
6 changed files with 102 additions and 36 deletions
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src/basic/copy.h
+2 -2
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@@ -33,8 +33,8 @@ typedef enum CopyFlags {
int copy_file_fd(const char *from, int to, CopyFlags copy_flags);
int copy_file(const char *from, const char *to, int open_flags, mode_t mode, unsigned chattr_flags, CopyFlags copy_flags);
int copy_file_atomic(const char *from, const char *to, mode_t mode, unsigned chattr_flags, CopyFlags copy_flags);
int copy_tree(const char *from, const char *to, CopyFlags copy_flags);
int copy_tree_at(int fdf, const char *from, int fdt, const char *to, CopyFlags copy_flags);
int copy_tree(const char *from, const char *to, uid_t override_uid, gid_t override_gid, CopyFlags copy_flags);
int copy_tree_at(int fdf, const char *from, int fdt, const char *to, uid_t override_uid, gid_t override_gid, CopyFlags copy_flags);
int copy_directory_fd(int dirfd, const char *to, CopyFlags copy_flags);
int copy_directory(const char *from, const char *to, CopyFlags copy_flags);
int copy_bytes(int fdf, int fdt, uint64_t max_bytes, CopyFlags copy_flags);