use core::fmt;
#[cfg(not(feature = "std"))]
use crate::alloc_prelude::*;
use mbedtls_sys::*;
use crate::error::{codes, IntoResult, Result};
use crate::hash::Type as MdType;
use crate::pk::Pk;
use crate::private::{alloc_string_repeat, alloc_vec_repeat};
use crate::rng::Random;
define!(
#[c_ty(x509_csr)]
struct Csr;
const init: fn() -> Self = x509_csr_init;
const drop: fn(&mut Self) = x509_csr_free;
);
impl Csr {
pub fn from_der(der: &[u8]) -> Result<Csr> {
let mut ret = Self::init();
unsafe { x509_csr_parse_der(&mut ret.inner, der.as_ptr(), der.len()) }.into_result()?;
Ok(ret)
}
pub fn from_pem(pem: &[u8]) -> Result<Csr> {
let mut ret = Self::init();
unsafe { x509_csr_parse(&mut ret.inner, pem.as_ptr(), pem.len()) }.into_result()?;
Ok(ret)
}
pub fn subject(&self) -> Result<String> {
alloc_string_repeat(|buf, size| unsafe { x509_dn_gets(buf, size, &self.inner.subject) })
}
pub fn subject_raw(&self) -> Result<Vec<u8>> {
alloc_vec_repeat(
|buf, size| unsafe { x509_dn_gets(buf as _, size, &self.inner.subject) },
false,
)
}
pub fn public_key(&self) -> &Pk {
unsafe { &*(&self.inner.pk as *const _ as *const _) }
}
pub fn as_der(&self) -> &[u8] {
unsafe { ::core::slice::from_raw_parts(self.inner.raw.p, self.inner.raw.len) }
}
}
impl fmt::Debug for Csr {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match alloc_string_repeat(|buf, size| unsafe { x509_csr_info(buf, size, b"\0".as_ptr() as *const _, &self.inner) }) {
Err(_) => Err(fmt::Error),
Ok(s) => f.write_str(&s),
}
}
}
define!(
#[c_ty(x509write_csr)]
struct Builder<'a>;
pub const new: fn() -> Self = x509write_csr_init;
const drop: fn(&mut Self) = x509write_csr_free;
);
impl<'a> Builder<'a> {
unsafe fn subject_with_nul_unchecked(&mut self, subject: &[u8]) -> Result<&mut Self> {
x509write_csr_set_subject_name(&mut self.inner, subject.as_ptr() as *const _).into_result()?;
Ok(self)
}
#[cfg(feature = "std")]
pub fn subject(&mut self, subject: &str) -> Result<&mut Self> {
match ::std::ffi::CString::new(subject) {
Err(_) => Err(codes::X509InvalidName.into()),
Ok(s) => unsafe { self.subject_with_nul_unchecked(s.as_bytes_with_nul()) },
}
}
pub fn subject_with_nul(&mut self, subject: &str) -> Result<&mut Self> {
if subject.as_bytes().iter().any(|&c| c == 0) {
unsafe { self.subject_with_nul_unchecked(subject.as_bytes()) }
} else {
Err(codes::X509InvalidName.into())
}
}
pub fn key(&mut self, key: &'a mut Pk) -> &mut Self {
unsafe { x509write_csr_set_key(&mut self.inner, key.into()) };
self
}
pub fn signature_hash(&mut self, md: MdType) -> &mut Self {
unsafe { x509write_csr_set_md_alg(&mut self.inner, md.into()) };
self
}
pub fn key_usage(&mut self, usage: crate::x509::KeyUsage) -> Result<&mut Self> {
let usage = usage.bits();
if (usage & !0xfe) != 0 {
return Err(codes::X509FeatureUnavailable.into());
}
unsafe { x509write_csr_set_key_usage(&mut self.inner, (usage & 0xfe) as u8) }.into_result()?;
Ok(self)
}
pub fn extension(&mut self, oid: &[u8], val: &[u8]) -> Result<&mut Self> {
unsafe { x509write_csr_set_extension(&mut self.inner, oid.as_ptr() as *const _, oid.len(), val.as_ptr(), val.len()) }
.into_result()?;
Ok(self)
}
pub fn write_der<'buf, F: Random>(&mut self, buf: &'buf mut [u8], rng: &mut F) -> Result<Option<&'buf [u8]>> {
match unsafe {
x509write_csr_der(&mut self.inner, buf.as_mut_ptr(), buf.len(), Some(F::call), rng.data_ptr()).into_result()
} {
Err(e) if e.low_level() == Some(codes::Asn1BufTooSmall) => Ok(None),
Err(e) => Err(e),
Ok(n) => Ok(Some(&buf[buf.len() - (n as usize)..])),
}
}
pub fn write_der_vec<F: Random>(&mut self, rng: &mut F) -> Result<Vec<u8>> {
alloc_vec_repeat(
|buf, size| unsafe { x509write_csr_der(&mut self.inner, buf, size, Some(F::call), rng.data_ptr()) },
true,
)
}
pub fn write_pem<'buf, F: Random>(&mut self, buf: &'buf mut [u8], rng: &mut F) -> Result<Option<&'buf [u8]>> {
match unsafe {
x509write_csr_der(&mut self.inner, buf.as_mut_ptr(), buf.len(), Some(F::call), rng.data_ptr()).into_result()
} {
Err(e) if e.low_level() == Some(codes::Base64BufferTooSmall) => Ok(None),
Err(e) => Err(e),
Ok(n) => Ok(Some(&buf[buf.len() - (n as usize)..])),
}
}
pub fn write_pem_string<F: Random>(&mut self, rng: &mut F) -> Result<String> {
alloc_string_repeat(|buf, size| unsafe {
match x509write_csr_pem(&mut self.inner, buf as _, size, Some(F::call), rng.data_ptr()) {
0 => crate::private::cstr_to_slice(buf as _).len() as _,
r => r,
}
})
}
}
#[cfg(test)]
mod tests {
use super::*;
struct Test {
key: Pk,
}
impl Test {
fn new() -> Self {
Test {
key: Pk::from_private_key(crate::test_support::keys::PEM_SELF_SIGNED_KEY, None).unwrap(),
}
}
fn builder<'a>(&'a mut self) -> Builder<'a> {
let mut b = Builder::new();
b.key(&mut self.key);
b.subject_with_nul("CN=mbedtls.example\0").unwrap();
b
}
}
const TEST_PEM: &'static str = r"-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----
";
const TEST_DER: &'static [u8] = &[
0x30, 0x82, 0x02, 0x5f, 0x30, 0x82, 0x01, 0x47, 0x02, 0x01, 0x00, 0x30, 0x1a, 0x31, 0x18, 0x30, 0x16, 0x06, 0x03, 0x55,
0x04, 0x03, 0x0c, 0x0f, 0x6d, 0x62, 0x65, 0x64, 0x74, 0x6c, 0x73, 0x2e, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x30,
0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82,
0x01, 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xc5, 0x8c, 0x08, 0x26, 0x08, 0x95, 0x26, 0x28,
0x04, 0x3f, 0x38, 0x08, 0x34, 0x30, 0x18, 0x77, 0x13, 0x6f, 0xa5, 0xe5, 0xab, 0x12, 0x1d, 0xd0, 0x4d, 0x99, 0x39, 0xb4,
0x82, 0xbd, 0xef, 0x9a, 0x79, 0x85, 0x71, 0x4a, 0xa5, 0x22, 0x95, 0x06, 0xdc, 0x11, 0x9d, 0xf3, 0x9a, 0x34, 0x73, 0xd5,
0xf9, 0xaa, 0x7c, 0x41, 0x28, 0x96, 0x9f, 0x4c, 0x92, 0xee, 0xdb, 0x14, 0x6a, 0x8f, 0x1d, 0x53, 0x32, 0x50, 0x5d, 0xb5,
0x5a, 0x4f, 0xd0, 0x25, 0xf2, 0xe6, 0xa3, 0xd8, 0xc2, 0xf3, 0xbc, 0x51, 0x62, 0x06, 0xca, 0xbb, 0x27, 0x8b, 0x2f, 0x06,
0x7e, 0x90, 0xe3, 0x5c, 0x69, 0x14, 0x15, 0xb9, 0xbd, 0xd4, 0x2c, 0x35, 0x73, 0xf9, 0x42, 0x0f, 0xb4, 0x75, 0xea, 0x52,
0xc7, 0x2b, 0xee, 0xcd, 0xa6, 0xaf, 0x68, 0xc6, 0x99, 0x37, 0x29, 0xf3, 0x07, 0x8a, 0xf4, 0x28, 0xac, 0x57, 0x77, 0xd5,
0xbc, 0xa8, 0xd1, 0x5c, 0x59, 0xbf, 0xfb, 0x05, 0x61, 0x58, 0x82, 0x6c, 0x3b, 0x4e, 0x62, 0x63, 0x22, 0x7d, 0x05, 0xff,
0xaa, 0x4a, 0xac, 0x6e, 0xf9, 0x31, 0x4a, 0xe3, 0xe4, 0x97, 0x3a, 0x71, 0x03, 0x11, 0x7c, 0xdb, 0x89, 0xad, 0x28, 0xc4,
0x62, 0x9b, 0x01, 0x90, 0x6d, 0x9e, 0x2d, 0x6c, 0xb9, 0x40, 0x14, 0xdb, 0xa0, 0x3b, 0x4d, 0x9e, 0x57, 0x41, 0xea, 0xf3,
0x11, 0xf1, 0x7d, 0xb9, 0x8d, 0xad, 0xb9, 0x52, 0xa8, 0x8c, 0xba, 0xf3, 0xf5, 0x1d, 0x8e, 0x0e, 0x18, 0xf5, 0xf7, 0x85,
0x8b, 0xc3, 0x55, 0x7d, 0x88, 0x3f, 0xae, 0xc1, 0x63, 0xb8, 0xbf, 0x85, 0xbf, 0xfd, 0xdd, 0x2c, 0x10, 0x61, 0x68, 0xc7,
0xdf, 0xc9, 0x5f, 0x49, 0xd1, 0xe5, 0x0b, 0x5e, 0x05, 0x70, 0xe5, 0x95, 0xcd, 0x69, 0x08, 0x0a, 0x6f, 0xab, 0x12, 0x05,
0x0a, 0xa2, 0x53, 0x72, 0xdf, 0xb4, 0x70, 0xd3, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa0, 0x00, 0x30, 0x0d, 0x06, 0x09, 0x2a,
0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0xbe, 0x0b, 0x9f, 0x3d, 0x4d,
0x49, 0x83, 0xa7, 0xa7, 0xcb, 0xb5, 0x35, 0x28, 0x48, 0x9a, 0x20, 0xc3, 0x6f, 0x2c, 0x3c, 0x57, 0x3f, 0xab, 0x7c, 0xdf,
0x73, 0x43, 0xc8, 0xdd, 0xeb, 0x56, 0xbe, 0x9d, 0xac, 0xf0, 0xef, 0x60, 0xdd, 0xc4, 0xa4, 0xf1, 0xcb, 0x71, 0x05, 0x47,
0xb3, 0xcd, 0xeb, 0xfd, 0x8c, 0x6f, 0xb3, 0x76, 0xa9, 0x4b, 0xa6, 0xdc, 0x76, 0xb8, 0x66, 0x0e, 0xcc, 0x99, 0x47, 0xf3,
0x93, 0xe1, 0x5d, 0x16, 0xef, 0x33, 0xb5, 0xdf, 0x64, 0x1e, 0xaa, 0x1b, 0xdd, 0x0e, 0x11, 0x26, 0xd6, 0x7d, 0xbf, 0x7e,
0x5c, 0x12, 0x4d, 0x15, 0xc8, 0x14, 0x48, 0x59, 0xfd, 0x25, 0x74, 0x54, 0x71, 0xb6, 0x1e, 0x7f, 0x65, 0x81, 0x2c, 0xd0,
0x8f, 0x48, 0x20, 0x30, 0x54, 0x8c, 0x61, 0x4f, 0xa1, 0x74, 0x1c, 0x65, 0x6a, 0xfc, 0xe4, 0x4d, 0x83, 0x5c, 0xab, 0x4a,
0x88, 0xdd, 0x1c, 0xcd, 0xd1, 0xb4, 0xb5, 0xd4, 0x8f, 0x02, 0xc6, 0x27, 0xf5, 0xcc, 0x6e, 0x94, 0x4e, 0xba, 0x6c, 0x95,
0x2d, 0xc8, 0x1d, 0xd0, 0x5f, 0x14, 0xe0, 0x2b, 0xc6, 0x59, 0xfc, 0x80, 0x66, 0xb6, 0x5e, 0x05, 0x9a, 0x64, 0x9b, 0x90,
0x6e, 0xc3, 0x60, 0xfe, 0x00, 0x52, 0x32, 0xd8, 0x84, 0xf5, 0x9d, 0x71, 0x55, 0x9b, 0x9f, 0x2d, 0x86, 0xef, 0xa7, 0x97,
0xdd, 0x90, 0xc2, 0x3a, 0x91, 0x18, 0xe0, 0x9b, 0xb1, 0x9b, 0x6a, 0x22, 0x4b, 0xa7, 0xd6, 0xb9, 0x0a, 0x78, 0x1d, 0x38,
0xa5, 0x86, 0xaf, 0x96, 0xf5, 0xab, 0x60, 0xa2, 0x0c, 0xf1, 0x8d, 0xd9, 0x5e, 0x55, 0x4e, 0xf4, 0x4b, 0xca, 0xa5, 0x7f,
0x0c, 0xcf, 0x76, 0x27, 0xbe, 0x3e, 0xb7, 0x7b, 0xde, 0xc4, 0xda, 0xa5, 0xf1, 0x40, 0x51, 0x87, 0xa2, 0xd2, 0xdd, 0xbb,
0xe3, 0x15, 0xbf, 0x6f, 0x47, 0x96, 0x7a, 0x8d, 0xb4, 0x43, 0x32,
];
#[test]
fn write_der() {
let mut t = Test::new();
let output = t
.builder()
.signature_hash(MdType::Sha256)
.write_der_vec(&mut crate::test_support::rand::test_rng())
.unwrap();
assert!(output == TEST_DER);
}
#[test]
fn write_pem() {
let mut t = Test::new();
let output = t
.builder()
.signature_hash(MdType::Sha256)
.write_pem_string(&mut crate::test_support::rand::test_rng())
.unwrap();
assert_eq!(output, TEST_PEM);
}
}