From 541e83ffe285cc67f4635d2dd1e7c89135140a13 Mon Sep 17 00:00:00 2001
From: flouthoc <flouthoc.git@gmail.com>
Date: Thu, 5 Aug 2021 17:12:17 +0530
Subject: personality: Add support for setting execution domain.

Execution domains tell Linux how to map signal numbers into signal actions.
The execution domain system allows Linux to provide limited support for binaries
compiled under other UNIX-like operating systems.

Reference: https://man7.org/linux/man-pages/man2/personality.2.html

Signed-off-by: flouthoc <flouthoc.git@gmail.com>
---
 cmd/podman/common/create.go      | 8 ++++++++
 cmd/podman/common/create_opts.go | 1 +
 cmd/podman/common/specgen.go     | 6 ++++++
 3 files changed, 15 insertions(+)

(limited to 'cmd/podman')

diff --git a/cmd/podman/common/create.go b/cmd/podman/common/create.go
index 96414add4..602ad5d94 100644
--- a/cmd/podman/common/create.go
+++ b/cmd/podman/common/create.go
@@ -498,6 +498,14 @@ func DefineCreateFlags(cmd *cobra.Command, cf *ContainerCLIOpts) {
 	)
 	_ = cmd.RegisterFlagCompletionFunc(variantFlagName, completion.AutocompleteNone)
 
+	personalityFlagName := "personality"
+	createFlags.StringVar(
+		&cf.Personality,
+		personalityFlagName, "",
+		"Configure execution domain using personality (e.g., LINUX/LINUX32)",
+	)
+	_ = cmd.RegisterFlagCompletionFunc(personalityFlagName, AutocompleteNamespace)
+
 	pidFlagName := "pid"
 	createFlags.String(
 		pidFlagName, "",
diff --git a/cmd/podman/common/create_opts.go b/cmd/podman/common/create_opts.go
index 61f08b73b..0a969bfd2 100644
--- a/cmd/podman/common/create_opts.go
+++ b/cmd/podman/common/create_opts.go
@@ -81,6 +81,7 @@ type ContainerCLIOpts struct {
 	Arch              string
 	OS                string
 	Variant           string
+	Personality       string
 	PID               string
 	PIDsLimit         *int64
 	Platform          string
diff --git a/cmd/podman/common/specgen.go b/cmd/podman/common/specgen.go
index 118091855..8d6a21cb7 100644
--- a/cmd/podman/common/specgen.go
+++ b/cmd/podman/common/specgen.go
@@ -651,6 +651,12 @@ func FillOutSpecGen(s *specgen.SpecGenerator, c *ContainerCLIOpts, args []string
 	if err != nil {
 		return err
 	}
+
+	if c.Personality != "" {
+		s.Personality = &specs.LinuxPersonality{}
+		s.Personality.Domain = specs.LinuxPersonalityDomain(c.Personality)
+	}
+
 	s.Remove = c.Rm
 	s.StopTimeout = &c.StopTimeout
 	s.Timeout = c.Timeout
-- 
cgit v1.2.3-54-g00ecf