// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0 > or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT >, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use std::{os::raw::c_char, str::Utf8Error};
use crate ::nss_prelude::*;
include!(concat!(env!(
"OUT_DIR" ),
"/nspr_error.rs" ));
#[ expect(non_snake_case, dead_code, reason =
"Code is bindgen-generated." )]
mod codes {
include!(concat!(env!(
"OUT_DIR" ),
"/nss_secerr.rs" ));
include!(concat!(env!(
"OUT_DIR" ),
"/nss_sslerr.rs" ));
}
pub use codes::{SECErrorCodes
as sec, SSLErrorCodes
as ssl};
use thiserror::Error;
#[ expect(dead_code, reason =
"Code is bindgen-generated." )]
pub mod nspr {
include!(concat!(env!(
"OUT_DIR" ),
"/nspr_err.rs" ));
}
#[ cfg_attr(not(test), expect(dead_code, reason =
"Some constants are not used." ))]
pub mod mozpkix {
// These are manually extracted from the many bindings generated
// by bindgen when provided with the simple header:
// #include "mozpkix/pkixnss.h"
#[ expect(non_camel_case_types, reason =
"Code is bindgen-generated." )]
pub type mozilla_pkix_ErrorCode = ::std::os::raw::c_int;
pub const MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE: mozilla_pkix_ErrorCode = -
16384 ;
pub const MOZILLA_PKIX_ERROR_CA_CERT_USED_AS_END_ENTITY: mozilla_pkix_ErrorCode = -
16383 ;
pub const MOZILLA_PKIX_ERROR_INADEQUATE_KEY_SIZE: mozilla_pkix_ErrorCode = -
16382 ;
pub const MOZILLA_PKIX_ERROR_V1_CERT_USED_AS_CA: mozilla_pkix_ErrorCode = -
16381 ;
pub const MOZILLA_PKIX_ERROR_NO_RFC822NAME_MATCH: mozilla_pkix_ErrorCode = -
16380 ;
pub const MOZILLA_PKIX_ERROR_NOT_YET_VALID_CERTIFICATE: mozilla_pkix_ErrorCode = -
16379 ;
pub const MOZILLA_PKIX_ERROR_NOT_YET_VALID_ISSUER_CERTIFICATE: mozilla_pkix_ErrorCo
de = -16378 ;
pub const MOZILLA_PKIX_ERROR_SIGNATURE_ALGORITHM_MISMATCH: mozilla_pkix_ErrorCode = -16377 ;
pub const MOZILLA_PKIX_ERROR_OCSP_RESPONSE_FOR_CERT_MISSING: mozilla_pkix_ErrorCode = -16376 ;
pub const MOZILLA_PKIX_ERROR_VALIDITY_TOO_LONG: mozilla_pkix_ErrorCode = -16375 ;
pub const MOZILLA_PKIX_ERROR_REQUIRED_TLS_FEATURE_MISSING: mozilla_pkix_ErrorCode = -16374 ;
pub const MOZILLA_PKIX_ERROR_INVALID_INTEGER_ENCODING: mozilla_pkix_ErrorCode = -16373 ;
pub const MOZILLA_PKIX_ERROR_EMPTY_ISSUER_NAME: mozilla_pkix_ErrorCode = -16372 ;
pub const MOZILLA_PKIX_ERROR_ADDITIONAL_POLICY_CONSTRAINT_FAILED: mozilla_pkix_ErrorCode =
-16371 ;
pub const MOZILLA_PKIX_ERROR_SELF_SIGNED_CERT: mozilla_pkix_ErrorCode = -16370 ;
pub const MOZILLA_PKIX_ERROR_MITM_DETECTED: mozilla_pkix_ErrorCode = -16369 ;
pub const END_OF_LIST: mozilla_pkix_ErrorCode = -16368 ;
}
pub type Res<T> = Result<T, Error>;
#[ derive(Clone, Debug, PartialEq, PartialOrd, Ord, Eq, Error)]
pub enum Error {
#[ error("AEAD error" )]
Aead,
#[ error("Aead truncated" )]
AeadTruncated,
#[ error("Certificate decoding error" )]
CertificateDecoding,
#[ error("Certificate encoding error" )]
CertificateEncoding,
#[ error("Certificate loading error" )]
CertificateLoading,
#[ error("Cipher initialization error" )]
CipherInit,
#[ error("Failed to create SSL socket" )]
CreateSslSocket,
#[ error("ECH error, retry needed" )]
EchRetry(Vec<u8>),
#[ error("HKDF error" )]
Hkdf,
#[ error("Internal error" )]
Internal,
#[ error("Integer overflow" )]
IntegerOverflow,
#[ error("Invalid ALPN" )]
InvalidAlpn,
#[ error("Invalid epoch" )]
InvalidEpoch,
#[ error("Invalid certificate compression ID" )]
InvalidCertificateCompressionID,
#[ error("Invalid input" )]
InvalidInput,
#[ error("Invalid state for this operation" )]
InvalidState,
#[ error("Mixed handshake method" )]
MixedHandshakeMethod,
#[ error("No data available" )]
NoDataAvailable,
#[ error("NSS error: {name} ({code}): {desc}" )]
Nss {
name: String,
code: PRErrorCode,
desc: String,
},
#[ error("Self encryption error" )]
SelfEncrypt,
#[ error("String conversion error" )]
String,
#[ error("Time travel detected" )]
TimeTravel,
#[ error("Unsupported cipher" )]
UnsupportedCipher,
#[ error("Unsupported curve" )]
UnsupportedCurve,
#[ error("Unsupported hash" )]
UnsupportedHash,
#[ error("Unsupported version" )]
UnsupportedVersion,
}
impl Error {
pub (crate ) fn last_nss_error() -> Self {
Self ::from(unsafe { PR_GetError() })
}
}
impl From<std::num::TryFromIntError> for Error {
fn from(_: std::num::TryFromIntError) -> Self {
Self ::IntegerOverflow
}
}
impl From<std::ffi::NulError> for Error {
fn from(_: std::ffi::NulError) -> Self {
Self ::Internal
}
}
impl From<Utf8Error> for Error {
fn from(_: Utf8Error) -> Self {
Self ::String
}
}
impl From<PRErrorCode> for Error {
fn from(code: PRErrorCode) -> Self {
let name = wrap_str_fn(|| unsafe { PR_ErrorToName(code) }, "UNKNOWN_ERROR" );
let desc = wrap_str_fn(
|| unsafe { PR_ErrorToString(code, PR_LANGUAGE_I_DEFAULT) },
"..." ,
);
Self ::Nss { name, code, desc }
}
}
use std::ffi::CStr;
fn wrap_str_fn<F>(f: F, dflt: &str) -> String
where
F: FnOnce() -> *const c_char,
{
unsafe {
let p = f();
if p.is_null() {
return dflt.to_string();
}
CStr::from_ptr(p).to_string_lossy().into_owned()
}
}
pub const fn is_blocked(result: &Res<()>) -> bool {
match result {
Err(Error::Nss { code, .. }) => *code == nspr::PR_WOULD_BLOCK_ERROR,
_ => false ,
}
}
pub trait IntoResult {
/// The `Ok` type for the result.
type Ok;
/// Unsafe in our implementors because they take a pointer and have no way
/// to ensure that the pointer is valid. An invalid pointer could cause UB
/// in `impl Drop for Scoped`.
fn into_result(self ) -> Result<Self ::Ok, Error>;
}
pub fn into_result<P>(ptr: *mut P) -> Result<*mut P, Error> {
if ptr.is_null() {
Err(Error::last_nss_error())
} else {
Ok(ptr)
}
}
// This can be used to implement `IntoResult` for pointer types that do not make
// sense as smart pointers. For smart pointers use `scoped_ptr!`.
macro_rules! impl_into_result {
($pointer:ty) => {
impl $crate ::err::IntoResult for *mut $pointer {
type Ok = *mut $pointer;
fn into_result(self ) -> Result<Self ::Ok, $crate ::err::Error> {
$crate ::err::into_result(self )
}
}
};
}
impl IntoResult for SECStatus {
type Ok = ();
fn into_result(self ) -> Result<(), Error> {
if self == SECSuccess {
Ok(())
} else {
Err(Error::last_nss_error())
}
}
}
pub fn secstatus_to_res(code: SECStatus) -> Res<()> {
SECStatus::into_result(code)
}
#[ cfg(test)]
#[ cfg_attr(coverage_nightly, coverage(off))]
mod tests {
use test_fixture::fixture_init;
use crate ::{
err::{self , Error, PR_SetError, PRErrorCode, is_blocked, secstatus_to_res},
ssl::{SECFailure, SECSuccess},
};
fn set_error_code(code: PRErrorCode) {
// This code doesn't work without initializing NSS first.
fixture_init();
unsafe {
PR_SetError(code, 0 );
}
}
#[ test]
fn error_code() {
fixture_init();
assert_eq!(15 - 0 x3000, err::ssl::SSL_ERROR_BAD_MAC_READ);
assert_eq!(166 - 0 x2000, err::sec::SEC_ERROR_LIBPKIX_INTERNAL);
assert_eq!(-5998 , err::nspr::PR_WOULD_BLOCK_ERROR);
}
#[ test]
fn is_ok() {
assert!(secstatus_to_res(SECSuccess).is_ok());
}
#[ test]
fn is_err() {
set_error_code(err::ssl::SSL_ERROR_BAD_MAC_READ);
let r = secstatus_to_res(SECFailure);
assert!(r.is_err());
match r.unwrap_err() {
Error::Nss { name, code, desc } => {
assert_eq!(name, "SSL_ERROR_BAD_MAC_READ" );
assert_eq!(code, -12273 );
assert_eq!(
desc,
"SSL received a record with an incorrect Message Authentication Code."
);
}
_ => unreachable!(),
}
}
#[ test]
fn is_err_zero_code() {
set_error_code(0 );
let r = secstatus_to_res(SECFailure);
assert!(r.is_err());
match r.unwrap_err() {
Error::Nss { name, code, .. } => {
assert_eq!(name, "UNKNOWN_ERROR" );
assert_eq!(code, 0 );
// Note that we don't test |desc| here because that comes from
// strerror(0), which is platform-dependent.
}
_ => unreachable!(),
}
}
#[ test]
fn blocked() {
set_error_code(err::nspr::PR_WOULD_BLOCK_ERROR);
let r = secstatus_to_res(SECFailure);
assert!(r.is_err());
assert!(is_blocked(&r));
match r.unwrap_err() {
Error::Nss { name, code, desc } => {
assert_eq!(name, "PR_WOULD_BLOCK_ERROR" );
assert_eq!(code, -5998 );
assert_eq!(desc, "The operation would have blocked" );
}
_ => panic!("bad error type" ),
}
}
#[ test]
#[ expect(invalid_from_utf8, reason = "Testing error conversion." )]
fn error_from_std_errors() {
use std::ffi::CString;
assert_eq!(
Error::from(CString::new("a\0b" ).unwrap_err()),
Error::Internal
);
assert_eq!(
Error::from(std::str::from_utf8(&[0 xff]).unwrap_err()),
Error::String
);
}
#[ test]
fn mozpkix_error_codes_are_negative() {
use crate ::err::mozpkix::*;
let codes = [
MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE,
MOZILLA_PKIX_ERROR_CA_CERT_USED_AS_END_ENTITY,
MOZILLA_PKIX_ERROR_INADEQUATE_KEY_SIZE,
MOZILLA_PKIX_ERROR_V1_CERT_USED_AS_CA,
MOZILLA_PKIX_ERROR_NO_RFC822NAME_MATCH,
MOZILLA_PKIX_ERROR_NOT_YET_VALID_CERTIFICATE,
MOZILLA_PKIX_ERROR_NOT_YET_VALID_ISSUER_CERTIFICATE,
MOZILLA_PKIX_ERROR_SIGNATURE_ALGORITHM_MISMATCH,
MOZILLA_PKIX_ERROR_OCSP_RESPONSE_FOR_CERT_MISSING,
MOZILLA_PKIX_ERROR_VALIDITY_TOO_LONG,
MOZILLA_PKIX_ERROR_REQUIRED_TLS_FEATURE_MISSING,
MOZILLA_PKIX_ERROR_INVALID_INTEGER_ENCODING,
MOZILLA_PKIX_ERROR_EMPTY_ISSUER_NAME,
MOZILLA_PKIX_ERROR_ADDITIONAL_POLICY_CONSTRAINT_FAILED,
MOZILLA_PKIX_ERROR_SELF_SIGNED_CERT,
MOZILLA_PKIX_ERROR_MITM_DETECTED,
END_OF_LIST,
];
for (i, &code) in codes.iter().enumerate() {
assert_eq!(
code,
-16384 + i32::try_from(i).unwrap(),
"mozpkix code at index {i}"
);
}
}
}
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