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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2024 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package main
import (
"flag"
"fmt"
"os"
"strings"
"github.com/jessevdk/go-flags"
"github.com/snapcore/snapd/sandbox/apparmor"
"github.com/snapcore/snapd/snapdtool"
)
type cmdDebugExec struct{}
func init() {
cmd := addDebugCommand("execution",
"Obtain information about execution aspects of snap toolchain commands",
`Display debugging information about aspects of snap toolchain execution, such
as reexecution, tools location etc.`,
func() flags.Commander { return &cmdDebugExec{} },
nil,
nil,
)
cmd.extra = func(c *flags.Command) {
c.AddCommand("apparmor", "Show apparmor", "", &cmdDebugExecAppArmor{})
c.AddCommand("snap", "Show snap execution info", "", &cmdDebugExecSnap{})
c.AddCommand("internal-tool", "Show internal tool execution info", "", &cmdDebugExecInternalTool{})
}
}
func (x *cmdDebugExec) Execute(args []string) error {
return flag.ErrHelp
}
type cmdDebugExecAppArmor struct{}
func (x *cmdDebugExecAppArmor) Execute(args []string) error {
cmd, internal, err := apparmor.AppArmorParser()
if err != nil {
fmt.Fprintf(Stdout, "apparmor-parser: error:%s\n", err.Error())
fmt.Fprint(Stdout, "internal: false\n")
return err
} else {
fmt.Fprintf(Stdout, "apparmor-parser: %s\n", cmd.Path)
fmt.Fprintf(Stdout, "apparmor-parser-command: %s\n", strings.Join(cmd.Args, " "))
fmt.Fprintf(Stdout, "internal: %v\n", internal)
}
return nil
}
type cmdDebugExecSnap struct{}
func (x *cmdDebugExecSnap) Execute(args []string) error {
fmt.Fprintf(Stdout, "distro-supports-reexec: %v\n", snapdtool.DistroSupportsReExec())
fmt.Fprintf(Stdout, "is-reexec-enabled: %v\n", snapdtool.IsReexecEnabled())
fmt.Fprintf(Stdout, "is-reexec-explicitly-enabled: %v\n", snapdtool.IsReexecExplicitlyEnabled())
isReexecd, err := snapdtool.IsReexecd()
if err == nil {
fmt.Fprintf(Stdout, "is-reexecd: %v\n", isReexecd)
} else {
fmt.Fprintf(Stdout, "is-reexecd: error:%v\n", err)
}
exe, err := os.Readlink("/proc/self/exe")
if err != nil {
return err
}
fmt.Fprintf(Stdout, "self-exe: %v\n", exe)
return nil
}
type cmdDebugExecInternalTool struct {
Positionals struct {
Tool string `required:"yes" positional-arg-name:"<tool>" description:"internal tool name"`
} `positional-args:"true"`
}
func (x *cmdDebugExecInternalTool) Execute(args []string) error {
if x.Positionals.Tool == "" {
return fmt.Errorf("tool name is missing")
}
tool, err := snapdtool.InternalToolPath(x.Positionals.Tool)
if err != nil {
return err
}
fmt.Fprintf(Stdout, "%s: %s\n", x.Positionals.Tool, tool)
return nil
}
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