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dbb9fc03ae
Only some libcontainer packages can be built on non-linux platforms
(not that it make sense, but at least go build succeeds). Let's call
these "good" packages.
For all other packages (i.e. ones that fail to build with GOOS other
than linux), it does not make sense to have linux build tag (as they
are broken already, and thus are not and can not be used on anything
other than Linux).
Remove linux build tag for all non-"good" packages.
This was mostly done by the following script, with just a few manual
fixes on top.
function list_good_pkgs() {
for pkg in $(find . -type d -print); do
GOOS=freebsd go build $pkg 2>/dev/null \
&& GOOS=solaris go build $pkg 2>/dev/null \
&& echo $pkg
done | sed -e 's|^./||' | tr '\n' '|' | sed -e 's/|$//'
}
function remove_tag() {
sed -i -e '\|^// +build linux$|d' $1
go fmt $1
}
SKIP="^("$(list_good_pkgs)")"
for f in $(git ls-files . | grep .go$); do
if echo $f | grep -qE "$SKIP"; then
echo skip $f
continue
fi
echo proc $f
remove_tag $f
done
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
46 lines
1.0 KiB
Go
46 lines
1.0 KiB
Go
package keys
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import (
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"errors"
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"fmt"
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"strconv"
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"strings"
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"golang.org/x/sys/unix"
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)
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type KeySerial uint32
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func JoinSessionKeyring(name string) (KeySerial, error) {
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sessKeyID, err := unix.KeyctlJoinSessionKeyring(name)
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if err != nil {
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return 0, fmt.Errorf("unable to create session key: %w", err)
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}
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return KeySerial(sessKeyID), nil
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}
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// ModKeyringPerm modifies permissions on a keyring by reading the current permissions,
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// anding the bits with the given mask (clearing permissions) and setting
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// additional permission bits
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func ModKeyringPerm(ringID KeySerial, mask, setbits uint32) error {
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dest, err := unix.KeyctlString(unix.KEYCTL_DESCRIBE, int(ringID))
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if err != nil {
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return err
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}
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res := strings.Split(dest, ";")
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if len(res) < 5 {
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return errors.New("Destination buffer for key description is too small")
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}
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// parse permissions
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perm64, err := strconv.ParseUint(res[3], 16, 32)
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if err != nil {
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return err
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}
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perm := (uint32(perm64) & mask) | setbits
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return unix.KeyctlSetperm(int(ringID), perm)
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}
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