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// Copyright (c) Contributors to the Apptainer project, established as
// Apptainer a Series of LF Projects LLC.
// For website terms of use, trademark policy, privacy policy and other
// project policies see https://lfprojects.org/policies
// Copyright (c) 2018-2025, Sylabs Inc. All rights reserved.
// This software is licensed under a 3-clause BSD license. Please consult the
// LICENSE.md file distributed with the sources of this project regarding your
// rights to use or distribute this software.
package security
import (
"fmt"
"strings"
"github.com/apptainer/apptainer/internal/pkg/security/apparmor"
"github.com/apptainer/apptainer/internal/pkg/security/seccomp"
"github.com/apptainer/apptainer/internal/pkg/security/selinux"
"github.com/apptainer/apptainer/pkg/sylog"
"github.com/opencontainers/runtime-spec/specs-go"
)
// Configure applies security related configuration to current process
func Configure(config *specs.Spec) error {
if config.Process != nil {
if config.Process.SelinuxLabel != "" && config.Process.ApparmorProfile != "" {
return fmt.Errorf("you can't specify both an apparmor profile and a selinux label")
}
if config.Process.SelinuxLabel != "" {
if selinux.Enabled() {
if err := selinux.SetExecLabel(config.Process.SelinuxLabel); err != nil {
return err
}
} else {
return fmt.Errorf("selinux requested, but is not enabled or supported on this system")
}
} else if config.Process.ApparmorProfile != "" {
if apparmor.Enabled() {
if err := apparmor.LoadProfile(config.Process.ApparmorProfile); err != nil {
return err
}
} else {
return fmt.Errorf("apparmor requested, but is not enabled or supported on this system")
}
}
}
if config.Linux != nil && config.Linux.Seccomp != nil {
if seccomp.Enabled() {
if err := seccomp.LoadSeccompConfig(config.Linux.Seccomp, config.Process.NoNewPrivileges, 1); err != nil {
return err
}
} else {
return fmt.Errorf("seccomp requested but not enabled, seccomp library is missing or too old")
}
}
return nil
}
// GetParam iterates over security argument and returns parameters
// for the security feature
func GetParam(security []string, feature string) string {
for _, param := range security {
splitted := strings.SplitN(param, ":", 2)
if splitted[0] == feature {
if len(splitted) != 2 {
sylog.Warningf("bad format for parameter %s (format is <security>:<arg>)", param)
}
return splitted[1]
}
}
return ""
}
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