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feat: support allowed_sandbox_modes in requirements.toml (#8298)

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This adds support for `allowed_sandbox_modes` in `requirements.toml` and
provides legacy support for constraining sandbox modes in
`managed_config.toml`. This is converted to `Constrained<SandboxPolicy>`
in `ConfigRequirements` and applied to `Config` such that constraints
are enforced throughout the harness.

Note that, because `managed_config.toml` is deprecated, we do not add
support for the new `external-sandbox` variant recently introduced in
https://github.com/openai/codex/pull/8290. As noted, that variant is not
supported in `config.toml` today, but can be configured programmatically
via app server.
This commit is contained in:
Michael Bolin
2025-12-19 13:09:20 -08:00
committed by GitHub
parent ec3738b47e
commit dc61fc5f50
25 changed files with 345 additions and 96 deletions
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40
codex-rs/core/src/config/mod.rs
View File

@@ -113,7 +113,7 @@ pub struct Config {
/// Approval policy for executing commands.
pub approval_policy: Constrained<AskForApproval>,
pub sandbox_policy: SandboxPolicy,
pub sandbox_policy: Constrained<SandboxPolicy>,
/// True if the user passed in an override or set a value in config.toml
/// for either of approval_policy or sandbox_mode.
@@ -1235,11 +1235,15 @@ impl Config {
// Config.
let ConfigRequirements {
approval_policy: mut constrained_approval_policy,
sandbox_policy: mut constrained_sandbox_policy,
} = requirements;
constrained_approval_policy
.set(approval_policy)
.map_err(|e| std::io::Error::new(std::io::ErrorKind::InvalidInput, format!("{e}")))?;
constrained_sandbox_policy
.set(sandbox_policy)
.map_err(|e| std::io::Error::new(std::io::ErrorKind::InvalidInput, format!("{e}")))?;
let config = Self {
model,
@@ -1250,7 +1254,7 @@ impl Config {
model_provider,
cwd: resolved_cwd,
approval_policy: constrained_approval_policy,
sandbox_policy,
sandbox_policy: constrained_sandbox_policy,
did_user_set_custom_approval_policy_or_sandbox_mode,
forced_auto_mode_downgraded_on_windows,
shell_environment_policy,
@@ -1672,12 +1676,12 @@ trust_level = "trusted"
config.forced_auto_mode_downgraded_on_windows,
"expected workspace-write request to be downgraded on Windows"
);
match config.sandbox_policy {
SandboxPolicy::ReadOnly => {}
match config.sandbox_policy.get() {
&SandboxPolicy::ReadOnly => {}
other => panic!("expected read-only policy on Windows, got {other:?}"),
}
} else {
match config.sandbox_policy {
match config.sandbox_policy.get() {
SandboxPolicy::WorkspaceWrite { writable_roots, .. } => {
assert_eq!(
writable_roots
@@ -1809,8 +1813,8 @@ trust_level = "trusted"
)?;
assert!(matches!(
config.sandbox_policy,
SandboxPolicy::DangerFullAccess
config.sandbox_policy.get(),
&SandboxPolicy::DangerFullAccess
));
assert!(config.did_user_set_custom_approval_policy_or_sandbox_mode);
@@ -1846,11 +1850,14 @@ trust_level = "trusted"
)?;
if cfg!(target_os = "windows") {
assert!(matches!(config.sandbox_policy, SandboxPolicy::ReadOnly));
assert!(matches!(
config.sandbox_policy.get(),
SandboxPolicy::ReadOnly
));
assert!(config.forced_auto_mode_downgraded_on_windows);
} else {
assert!(matches!(
config.sandbox_policy,
config.sandbox_policy.get(),
SandboxPolicy::WorkspaceWrite { .. }
));
assert!(!config.forced_auto_mode_downgraded_on_windows);
@@ -3048,7 +3055,7 @@ model_verbosity = "high"
model_provider_id: "openai".to_string(),
model_provider: fixture.openai_provider.clone(),
approval_policy: Constrained::allow_any(AskForApproval::Never),
sandbox_policy: SandboxPolicy::new_read_only_policy(),
sandbox_policy: Constrained::allow_any(SandboxPolicy::new_read_only_policy()),
did_user_set_custom_approval_policy_or_sandbox_mode: true,
forced_auto_mode_downgraded_on_windows: false,
shell_environment_policy: ShellEnvironmentPolicy::default(),
@@ -3123,7 +3130,7 @@ model_verbosity = "high"
model_provider_id: "openai-chat-completions".to_string(),
model_provider: fixture.openai_chat_completions_provider.clone(),
approval_policy: Constrained::allow_any(AskForApproval::UnlessTrusted),
sandbox_policy: SandboxPolicy::new_read_only_policy(),
sandbox_policy: Constrained::allow_any(SandboxPolicy::new_read_only_policy()),
did_user_set_custom_approval_policy_or_sandbox_mode: true,
forced_auto_mode_downgraded_on_windows: false,
shell_environment_policy: ShellEnvironmentPolicy::default(),
@@ -3213,7 +3220,7 @@ model_verbosity = "high"
model_provider_id: "openai".to_string(),
model_provider: fixture.openai_provider.clone(),
approval_policy: Constrained::allow_any(AskForApproval::OnFailure),
sandbox_policy: SandboxPolicy::new_read_only_policy(),
sandbox_policy: Constrained::allow_any(SandboxPolicy::new_read_only_policy()),
did_user_set_custom_approval_policy_or_sandbox_mode: true,
forced_auto_mode_downgraded_on_windows: false,
shell_environment_policy: ShellEnvironmentPolicy::default(),
@@ -3289,7 +3296,7 @@ model_verbosity = "high"
model_provider_id: "openai".to_string(),
model_provider: fixture.openai_provider.clone(),
approval_policy: Constrained::allow_any(AskForApproval::OnFailure),
sandbox_policy: SandboxPolicy::new_read_only_policy(),
sandbox_policy: Constrained::allow_any(SandboxPolicy::new_read_only_policy()),
did_user_set_custom_approval_policy_or_sandbox_mode: true,
forced_auto_mode_downgraded_on_windows: false,
shell_environment_policy: ShellEnvironmentPolicy::default(),
@@ -3634,12 +3641,15 @@ trust_level = "untrusted"
// Verify that untrusted projects still get WorkspaceWrite sandbox (or ReadOnly on Windows)
if cfg!(target_os = "windows") {
assert!(
matches!(config.sandbox_policy, SandboxPolicy::ReadOnly),
matches!(config.sandbox_policy.get(), SandboxPolicy::ReadOnly),
"Expected ReadOnly on Windows"
);
} else {
assert!(
matches!(config.sandbox_policy, SandboxPolicy::WorkspaceWrite { .. }),
matches!(
config.sandbox_policy.get(),
SandboxPolicy::WorkspaceWrite { .. }
),
"Expected WorkspaceWrite sandbox for untrusted project"
);
}