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use ffi;
use libc::{c_char, c_int, c_uchar, c_uint, c_void};
use std::ffi::CStr;
use std::ptr;
use std::slice;
use std::mem;
use foreign_types::ForeignTypeRef;
use error::ErrorStack;
use dh::Dh;
#[cfg(any(all(feature = "v101", ossl101), all(feature = "v102", ossl102)))]
use ec::EcKey;
use pkey::Params;
use ssl::{get_callback_idx, get_ssl_callback_idx, SniError, SslAlert, SslRef};
#[cfg(any(all(feature = "v102", ossl102), all(feature = "v110", ossl110),
all(feature = "v111", ossl111)))]
use ssl::AlpnError;
use x509::X509StoreContextRef;
pub extern "C" fn raw_verify<F>(preverify_ok: c_int, x509_ctx: *mut ffi::X509_STORE_CTX) -> c_int
where
F: Fn(bool, &mut X509StoreContextRef) -> bool + 'static + Sync + Send,
{
unsafe {
let idx = ffi::SSL_get_ex_data_X509_STORE_CTX_idx();
let ssl = ffi::X509_STORE_CTX_get_ex_data(x509_ctx, idx);
let ssl_ctx = ffi::SSL_get_SSL_CTX(ssl as *const _);
let verify = ffi::SSL_CTX_get_ex_data(ssl_ctx, get_callback_idx::<F>());
let verify: &F = &*(verify as *mut F);
let ctx = X509StoreContextRef::from_ptr_mut(x509_ctx);
verify(preverify_ok != 0, ctx) as c_int
}
}
#[cfg(not(osslconf = "OPENSSL_NO_PSK"))]
pub extern "C" fn raw_psk<F>(
ssl: *mut ffi::SSL,
hint: *const c_char,
identity: *mut c_char,
max_identity_len: c_uint,
psk: *mut c_uchar,
max_psk_len: c_uint,
) -> c_uint
where
F: Fn(&mut SslRef, Option<&[u8]>, &mut [u8], &mut [u8]) -> Result<usize, ErrorStack>
+ 'static
+ Sync
+ Send,
{
unsafe {
let ssl_ctx = ffi::SSL_get_SSL_CTX(ssl as *const _);
let callback = ffi::SSL_CTX_get_ex_data(ssl_ctx, get_callback_idx::<F>());
let ssl = SslRef::from_ptr_mut(ssl);
let callback = &*(callback as *mut F);
let hint = if hint != ptr::null() {
Some(CStr::from_ptr(hint).to_bytes())
} else {
None
};
// Give the callback mutable slices into which it can write the identity and psk.
let identity_sl = slice::from_raw_parts_mut(identity as *mut u8, max_identity_len as usize);
let psk_sl = slice::from_raw_parts_mut(psk as *mut u8, max_psk_len as usize);
match callback(ssl, hint, identity_sl, psk_sl) {
Ok(psk_len) => psk_len as u32,
_ => 0,
}
}
}
pub extern "C" fn ssl_raw_verify<F>(
preverify_ok: c_int,
x509_ctx: *mut ffi::X509_STORE_CTX,
) -> c_int
where
F: Fn(bool, &mut X509StoreContextRef) -> bool + 'static + Sync + Send,
{
unsafe {
let idx = ffi::SSL_get_ex_data_X509_STORE_CTX_idx();
let ssl = ffi::X509_STORE_CTX_get_ex_data(x509_ctx, idx);
let verify = ffi::SSL_get_ex_data(ssl as *const _, get_ssl_callback_idx::<F>());
let verify: &F = &*(verify as *mut F);
let ctx = X509StoreContextRef::from_ptr_mut(x509_ctx);
verify(preverify_ok != 0, ctx) as c_int
}
}
pub extern "C" fn raw_sni<F>(ssl: *mut ffi::SSL, al: *mut c_int, _arg: *mut c_void) -> c_int
where
F: Fn(&mut SslRef, &mut SslAlert) -> Result<(), SniError> + 'static + Sync + Send,
{
unsafe {
let ssl_ctx = ffi::SSL_get_SSL_CTX(ssl);
let callback = ffi::SSL_CTX_get_ex_data(ssl_ctx, get_callback_idx::<F>());
let callback: &F = &*(callback as *mut F);
let ssl = SslRef::from_ptr_mut(ssl);
let mut alert = SslAlert(*al);
let r = callback(ssl, &mut alert);
*al = alert.0;
match r {
Ok(()) => ffi::SSL_TLSEXT_ERR_OK,
Err(e) => e.0,
}
}
}
#[cfg(any(all(feature = "v102", ossl102), all(feature = "v110", ossl110),
all(feature = "v111", ossl111)))]
pub extern "C" fn raw_alpn_select<F>(
ssl: *mut ffi::SSL,
out: *mut *const c_uchar,
outlen: *mut c_uchar,
inbuf: *const c_uchar,
inlen: c_uint,
_arg: *mut c_void,
) -> c_int
where
F: for<'a> Fn(&mut SslRef, &'a [u8]) -> Result<&'a [u8], AlpnError> + 'static + Sync + Send,
{
unsafe {
let ssl_ctx = ffi::SSL_get_SSL_CTX(ssl);
let callback = ffi::SSL_CTX_get_ex_data(ssl_ctx, get_callback_idx::<F>());
let callback: &F = &*(callback as *mut F);
let ssl = SslRef::from_ptr_mut(ssl);
let protos = slice::from_raw_parts(inbuf as *const u8, inlen as usize);
match callback(ssl, protos) {
Ok(proto) => {
*out = proto.as_ptr() as *const c_uchar;
*outlen = proto.len() as c_uchar;
ffi::SSL_TLSEXT_ERR_OK
}
Err(e) => e.0,
}
}
}
pub unsafe extern "C" fn raw_tmp_dh<F>(
ssl: *mut ffi::SSL,
is_export: c_int,
keylength: c_int,
) -> *mut ffi::DH
where
F: Fn(&mut SslRef, bool, u32) -> Result<Dh<Params>, ErrorStack> + 'static + Sync + Send,
{
let ctx = ffi::SSL_get_SSL_CTX(ssl);
let callback = ffi::SSL_CTX_get_ex_data(ctx, get_callback_idx::<F>());
let callback = &*(callback as *mut F);
let ssl = SslRef::from_ptr_mut(ssl);
match callback(ssl, is_export != 0, keylength as u32) {
Ok(dh) => {
let ptr = dh.as_ptr();
mem::forget(dh);
ptr
}
Err(_) => {
// FIXME reset error stack
ptr::null_mut()
}
}
}
#[cfg(any(all(feature = "v101", ossl101), all(feature = "v102", ossl102)))]
pub unsafe extern "C" fn raw_tmp_ecdh<F>(
ssl: *mut ffi::SSL,
is_export: c_int,
keylength: c_int,
) -> *mut ffi::EC_KEY
where
F: Fn(&mut SslRef, bool, u32) -> Result<EcKey<Params>, ErrorStack> + 'static + Sync + Send,
{
let ctx = ffi::SSL_get_SSL_CTX(ssl);
let callback = ffi::SSL_CTX_get_ex_data(ctx, get_callback_idx::<F>());
let callback = &*(callback as *mut F);
let ssl = SslRef::from_ptr_mut(ssl);
match callback(ssl, is_export != 0, keylength as u32) {
Ok(ec_key) => {
let ptr = ec_key.as_ptr();
mem::forget(ec_key);
ptr
}
Err(_) => {
// FIXME reset error stack
ptr::null_mut()
}
}
}
pub unsafe extern "C" fn raw_tmp_dh_ssl<F>(
ssl: *mut ffi::SSL,
is_export: c_int,
keylength: c_int,
) -> *mut ffi::DH
where
F: Fn(&mut SslRef, bool, u32) -> Result<Dh<Params>, ErrorStack> + 'static + Sync + Send,
{
let callback = ffi::SSL_get_ex_data(ssl, get_ssl_callback_idx::<F>());
let callback = &*(callback as *mut F);
let ssl = SslRef::from_ptr_mut(ssl);
match callback(ssl, is_export != 0, keylength as u32) {
Ok(dh) => {
let ptr = dh.as_ptr();
mem::forget(dh);
ptr
}
Err(_) => {
// FIXME reset error stack
ptr::null_mut()
}
}
}
#[cfg(any(all(feature = "v101", ossl101), all(feature = "v102", ossl102)))]
pub unsafe extern "C" fn raw_tmp_ecdh_ssl<F>(
ssl: *mut ffi::SSL,
is_export: c_int,
keylength: c_int,
) -> *mut ffi::EC_KEY
where
F: Fn(&mut SslRef, bool, u32) -> Result<EcKey<Params>, ErrorStack> + 'static + Sync + Send,
{
let callback = ffi::SSL_get_ex_data(ssl, get_ssl_callback_idx::<F>());
let callback = &*(callback as *mut F);
let ssl = SslRef::from_ptr_mut(ssl);
match callback(ssl, is_export != 0, keylength as u32) {
Ok(ec_key) => {
let ptr = ec_key.as_ptr();
mem::forget(ec_key);
ptr
}
Err(_) => {
// FIXME reset error stack
ptr::null_mut()
}
}
}
pub unsafe extern "C" fn raw_tlsext_status<F>(ssl: *mut ffi::SSL, _: *mut c_void) -> c_int
where
F: Fn(&mut SslRef) -> Result<bool, ErrorStack> + 'static + Sync + Send,
{
let ssl_ctx = ffi::SSL_get_SSL_CTX(ssl as *const _);
let callback = ffi::SSL_CTX_get_ex_data(ssl_ctx, get_callback_idx::<F>());
let callback = &*(callback as *mut F);
let ssl = SslRef::from_ptr_mut(ssl);
let ret = callback(ssl);
if ssl.is_server() {
match ret {
Ok(true) => ffi::SSL_TLSEXT_ERR_OK,
Ok(false) => ffi::SSL_TLSEXT_ERR_NOACK,
Err(_) => {
// FIXME reset error stack
ffi::SSL_TLSEXT_ERR_ALERT_FATAL
}
}
} else {
match ret {
Ok(true) => 1,
Ok(false) => 0,
Err(_) => {
// FIXME reset error stack
-1
}
}
}
}
|
