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d78bbedcb1
Ahead of introduction of CIFS workaround, generalize the names so that we use more general language rather instead of focusing on NFS. As a special exception the externally visible wording related to NFS is kept intact in two places: - The apparmor "nfs-support" file name - The system key "nfs-home" key. From points of view this is all an elaborate internal rename that should nto be observable outside of snapd, apart from log messages that may no longer speak of NFS but of remote file systems. Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>
61 lines
1.8 KiB
Go
61 lines
1.8 KiB
Go
// -*- Mode: Go; indent-tabs-mode: t -*-
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/*
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* Copyright (C) 2016 Canonical Ltd
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 3 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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package osutil
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import (
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"fmt"
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"strings"
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)
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var etcFstab = "/etc/fstab"
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// isHomeUsingRemoteFS informs if remote filesystems are defined or mounted under /home.
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//
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// Internally /proc/self/mountinfo and /etc/fstab are interrogated (for current
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// and possible mounted filesystems). If either of those describes NFS
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// filesystem mounted under or beneath /home/ then the return value is true.
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var isHomeUsingRemoteFS = func() (bool, error) {
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mountinfo, err := LoadMountInfo()
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if err != nil {
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return false, fmt.Errorf("cannot parse mountinfo: %s", err)
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}
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for _, entry := range mountinfo {
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switch entry.FsType {
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case "nfs4", "nfs", "autofs", "cifs":
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if strings.HasPrefix(entry.MountDir, "/home/") || entry.MountDir == "/home" {
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return true, nil
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}
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}
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}
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fstab, err := LoadMountProfile(etcFstab)
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if err != nil {
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return false, fmt.Errorf("cannot parse %s: %s", etcFstab, err)
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}
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for _, entry := range fstab.Entries {
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switch entry.Type {
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case "nfs4", "nfs", "autofs", "cifs":
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if strings.HasPrefix(entry.Dir, "/home/") || entry.Dir == "/home" {
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return true, nil
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}
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}
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}
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return false, nil
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}
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