66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
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// +build linux
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package libcontainer
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import (
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"fmt"
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"os"
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"github.com/opencontainers/runc/libcontainer/apparmor"
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"github.com/opencontainers/runc/libcontainer/keys"
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"github.com/opencontainers/runc/libcontainer/seccomp"
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"github.com/opencontainers/runc/libcontainer/system"
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"github.com/opencontainers/selinux/go-selinux/label"
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"golang.org/x/sys/unix"
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)
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// linuxSetnsInit performs the container's initialization for running a new process
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// inside an existing container.
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type linuxSetnsInit struct {
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pipe *os.File
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consoleSocket *os.File
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config *initConfig
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}
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func (l *linuxSetnsInit) getSessionRingName() string {
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return fmt.Sprintf("_ses.%s", l.config.ContainerId)
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}
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func (l *linuxSetnsInit) Init() error {
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if !l.config.Config.NoNewKeyring {
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// do not inherit the parent's session keyring
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if _, err := keys.JoinSessionKeyring(l.getSessionRingName()); err != nil {
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return err
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}
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}
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if l.config.CreateConsole {
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if err := setupConsole(l.consoleSocket, l.config, false); err != nil {
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return err
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}
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if err := system.Setctty(); err != nil {
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return err
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}
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}
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if l.config.NoNewPrivileges {
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if err := unix.Prctl(unix.PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0); err != nil {
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return err
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}
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}
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if l.config.Config.Seccomp != nil {
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if err := seccomp.InitSeccomp(l.config.Config.Seccomp); err != nil {
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return err
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}
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}
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if err := finalizeNamespace(l.config); err != nil {
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return err
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}
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if err := apparmor.ApplyProfile(l.config.AppArmorProfile); err != nil {
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return err
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}
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if err := label.SetProcessLabel(l.config.ProcessLabel); err != nil {
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return err
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}
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return system.Execv(l.config.Args[0], l.config.Args[0:], os.Environ())
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}
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