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Support FreeBSD on pkg/mount

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Docker-DCO-1.1-Signed-off-by: Kato Kazuyoshi <kato.kazuyoshi@gmail.com> (github: kzys)
This commit is contained in:
Kato Kazuyoshi 2014-03-21 00:52:12 +09:00
parent 243b3164c8
commit c0b1b13860
12 changed files with 312 additions and 137 deletions
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73
mount/flags_linux.go
View file

@ -3,62 +3,23 @@
package mount
import (
"strings"
"syscall"
)
// Parse fstab type mount options into mount() flags
// and device specific data
func parseOptions(options string) (int, string) {
var (
flag int
data []string
)
flags := map[string]struct {
clear bool
flag int
}{
"defaults": {false, 0},
"ro": {false, syscall.MS_RDONLY},
"rw": {true, syscall.MS_RDONLY},
"suid": {true, syscall.MS_NOSUID},
"nosuid": {false, syscall.MS_NOSUID},
"dev": {true, syscall.MS_NODEV},
"nodev": {false, syscall.MS_NODEV},
"exec": {true, syscall.MS_NOEXEC},
"noexec": {false, syscall.MS_NOEXEC},
"sync": {false, syscall.MS_SYNCHRONOUS},
"async": {true, syscall.MS_SYNCHRONOUS},
"dirsync": {false, syscall.MS_DIRSYNC},
"remount": {false, syscall.MS_REMOUNT},
"mand": {false, syscall.MS_MANDLOCK},
"nomand": {true, syscall.MS_MANDLOCK},
"atime": {true, syscall.MS_NOATIME},
"noatime": {false, syscall.MS_NOATIME},
"diratime": {true, syscall.MS_NODIRATIME},
"nodiratime": {false, syscall.MS_NODIRATIME},
"bind": {false, syscall.MS_BIND},
"rbind": {false, syscall.MS_BIND | syscall.MS_REC},
"private": {false, syscall.MS_PRIVATE},
"relatime": {false, syscall.MS_RELATIME},
"norelatime": {true, syscall.MS_RELATIME},
"strictatime": {false, syscall.MS_STRICTATIME},
"nostrictatime": {true, syscall.MS_STRICTATIME},
}
for _, o := range strings.Split(options, ",") {
// If the option does not exist in the flags table then it is a
// data value for a specific fs type
if f, exists := flags[o]; exists {
if f.clear {
flag &= ^f.flag
} else {
flag |= f.flag
}
} else {
data = append(data, o)
}
}
return flag, strings.Join(data, ",")
}
const (
RDONLY = syscall.MS_RDONLY
NOSUID = syscall.MS_NOSUID
NODEV = syscall.MS_NODEV
NOEXEC = syscall.MS_NOEXEC
SYNCHRONOUS = syscall.MS_SYNCHRONOUS
DIRSYNC = syscall.MS_DIRSYNC
REMOUNT = syscall.MS_REMOUNT
MANDLOCK = syscall.MS_MANDLOCK
NOATIME = syscall.MS_NOATIME
NODIRATIME = syscall.MS_NODIRATIME
BIND = syscall.MS_BIND
RBIND = syscall.MS_BIND | syscall.MS_REC
PRIVATE = syscall.MS_PRIVATE
RELATIME = syscall.MS_RELATIME
STRICTATIME = syscall.MS_STRICTATIME
)