mirror of
https://github.com/gravitational/teleport.git
synced 2026-09-19 11:00:37 +08:00
Edoardo Spadolini
825b23049e
* Move the reexec parts of lib/srv to session/reexec * Update references to the moved bits of lib/srv * Avoid testutils in session/reexec * Shuffle some constants around to avoid imports in session/reexec * Vendor in the relevant parts of logutils in session/reexec * Remove unnecessary symlink checks when opening files * Inline the last two things from lib/utils in session/reexec * Inline moved constants * Deprecate group name consts and fix missed inlines * Add missing session/reexec.TestMain with reexec check * Reuse existing constants from the log constants package in session * Fix broken godoc link
71 lines
2.1 KiB
Go
71 lines
2.1 KiB
Go
/*
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* Teleport
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* Copyright (C) 2025 Gravitational, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package sshutils
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import (
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"context"
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"errors"
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"log/slog"
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"syscall"
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"github.com/gravitational/teleport/session/reexec/reexecconstants"
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)
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// errorWithExitStatus defines an interface that provides an ExitStatus
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// function to get the exit code of the process execution.
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//
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// This interface is introduced so ssh.ExitError can be mocked in unit test.
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type errorWithExitStatus interface {
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ExitStatus() int
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}
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// execExitError defines an interface that provides a Sys function to get exit
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// status from the process execution.
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//
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// This interface is introduced so exec.ExitError can be mocked in unit test.
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type execExitError interface {
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Sys() any
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}
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// ExitCodeFromExecError extracts and returns the exit code from the
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// error.
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func ExitCodeFromExecError(err error) int {
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// If no error occurred, return 0 (success).
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if err == nil {
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return reexecconstants.RemoteCommandSuccess
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}
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var execExitErr execExitError
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var exitErr errorWithExitStatus
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switch {
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case errors.As(err, &execExitErr):
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waitStatus, ok := execExitErr.Sys().(syscall.WaitStatus)
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if !ok {
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return reexecconstants.RemoteCommandFailure
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}
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return waitStatus.ExitStatus()
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case errors.As(err, &exitErr):
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return exitErr.ExitStatus()
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// An error occurred, but the type is unknown, return a generic 255 code.
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default:
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slog.DebugContext(context.Background(), "Unknown error returned when executing command", "error", err)
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return reexecconstants.RemoteCommandFailure
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}
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}
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