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Kernel: Allow passing initial UID and GID when creating new inodes

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If we're creating something that should have a different owner than the
current process's UID/GID, we need to plumb that all the way through
VFS down to the FS functions.
This commit is contained in:
Andreas Kling 2020-01-03 20:13:21 +01:00
parent 82760998a9
commit 4abbedb6e4
11 changed files with 41 additions and 33 deletions
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10
Kernel/FileSystem/TmpFS.cpp
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@ -62,7 +62,7 @@ RefPtr<Inode> TmpFS::get_inode(InodeIdentifier identifier) const
return it->value;
}
RefPtr<Inode> TmpFS::create_inode(InodeIdentifier parent_id, const String& name, mode_t mode, off_t size, dev_t dev, int& error)
RefPtr<Inode> TmpFS::create_inode(InodeIdentifier parent_id, const String& name, mode_t mode, off_t size, dev_t dev, uid_t uid, gid_t gid, int& error)
{
LOCKER(m_lock);
ASSERT(parent_id.fsid() == fsid());
@ -75,8 +75,8 @@ RefPtr<Inode> TmpFS::create_inode(InodeIdentifier parent_id, const String& name,
InodeMetadata metadata;
metadata.mode = mode;
metadata.uid = current->process().euid();
metadata.gid = current->process().egid();
metadata.uid = uid;
metadata.gid = gid;
metadata.atime = now.tv_sec;
metadata.ctime = now.tv_sec;
metadata.mtime = now.tv_sec;
@ -91,12 +91,12 @@ RefPtr<Inode> TmpFS::create_inode(InodeIdentifier parent_id, const String& name,
return inode;
}
RefPtr<Inode> TmpFS::create_directory(InodeIdentifier parent_id, const String& name, mode_t mode, int& error)
RefPtr<Inode> TmpFS::create_directory(InodeIdentifier parent_id, const String& name, mode_t mode, uid_t uid, gid_t gid, int& error)
{
// Ensure it's a directory.
mode &= ~0170000;
mode |= 0040000;
return create_inode(parent_id, name, mode, 0, 0, error);
return create_inode(parent_id, name, mode, 0, 0, uid, gid, error);
}
TmpFSInode::TmpFSInode(TmpFS& fs, InodeMetadata metadata, InodeIdentifier parent)