1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
|
#[cfg(feature = "bindgen")]
use bindgen::callbacks::{MacroParsingBehavior, ParseCallbacks};
#[cfg(feature = "bindgen")]
use bindgen::{MacroTypeVariation, RustTarget};
use std::io::Write;
use std::path::PathBuf;
#[cfg(not(feature = "bindgen"))]
use std::process;
use std::{env, fs};
const INCLUDES: &str = "
#include <openssl/aes.h>
#include <openssl/asn1.h>
#include <openssl/bio.h>
#include <openssl/cmac.h>
#include <openssl/conf.h>
#include <openssl/crypto.h>
#include <openssl/dh.h>
#include <openssl/dsa.h>
#include <openssl/ec.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/objects.h>
#include <openssl/opensslv.h>
#include <openssl/pem.h>
#include <openssl/pkcs12.h>
#include <openssl/pkcs7.h>
#include <openssl/rand.h>
#include <openssl/rsa.h>
#include <openssl/safestack.h>
#include <openssl/sha.h>
#include <openssl/ssl.h>
#include <openssl/stack.h>
#include <openssl/x509.h>
#include <openssl/x509_vfy.h>
#include <openssl/x509v3.h>
#if !defined(OPENSSL_IS_AWSLC)
// this must be included after ssl.h for libressl!
#include <openssl/srtp.h>
#endif
#if !(defined(LIBRESSL_VERSION_NUMBER) || defined(OPENSSL_IS_BORINGSSL) || defined(OPENSSL_IS_AWSLC))
#include <openssl/cms.h>
#endif
#if !(defined(OPENSSL_IS_BORINGSSL) || defined(OPENSSL_IS_AWSLC))
#include <openssl/comp.h>
#endif
#if !defined(OPENSSL_IS_BORINGSSL)
#include <openssl/ocsp.h>
#endif
#if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000
#include <openssl/kdf.h>
#endif
#if OPENSSL_VERSION_NUMBER >= 0x30000000
#include <openssl/provider.h>
#endif
#if OPENSSL_VERSION_NUMBER >= 0x30200000
#include <openssl/quic.h>
#endif
#if defined(LIBRESSL_VERSION_NUMBER) || defined(OPENSSL_IS_BORINGSSL) || defined(OPENSSL_IS_AWSLC)
#include <openssl/poly1305.h>
#endif
#if OPENSSL_VERSION_NUMBER >= 0x30200000
#include <openssl/thread.h>
#endif
";
#[cfg(feature = "bindgen")]
pub fn run(include_dirs: &[PathBuf]) {
let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
let mut builder = bindgen::builder()
.parse_callbacks(Box::new(OpensslCallbacks))
.rust_target(RustTarget::Stable_1_47)
.ctypes_prefix("::libc")
.raw_line("use libc::*;")
.raw_line("#[cfg(windows)] use std::os::windows::raw::HANDLE;")
.raw_line("type evp_pkey_st = EVP_PKEY;")
.allowlist_file(".*[/\\\\]openssl/[^/\\\\]+\\.h")
.allowlist_recursively(false)
// libc is missing pthread_once_t on macOS
.blocklist_type("CRYPTO_ONCE")
.blocklist_function("CRYPTO_THREAD_run_once")
// we don't want to mess with va_list
.blocklist_function("BIO_vprintf")
.blocklist_function("BIO_vsnprintf")
.blocklist_function("ERR_vset_error")
.blocklist_function("ERR_add_error_vdata")
.blocklist_function("EVP_KDF_vctrl")
.blocklist_type("OSSL_FUNC_core_vset_error_fn")
.blocklist_type("OSSL_FUNC_BIO_vprintf_fn")
.blocklist_type("OSSL_FUNC_BIO_vsnprintf_fn")
// struct hostent * does not exist on Windows
.blocklist_function("BIO_gethostbyname")
// Maintain compatibility for existing enum definitions
.rustified_enum("point_conversion_form_t")
// Maintain compatibility for pre-union definitions
.blocklist_type("GENERAL_NAME")
.blocklist_type("GENERAL_NAME_st")
.blocklist_type("EVP_PKEY")
.blocklist_type("evp_pkey_st")
.layout_tests(false)
.header_contents("includes.h", INCLUDES);
for include_dir in include_dirs {
builder = builder
.clang_arg("-I")
.clang_arg(include_dir.display().to_string());
}
builder
.generate()
.unwrap()
.write_to_file(out_dir.join("bindgen.rs"))
.unwrap();
}
#[cfg(feature = "bindgen")]
pub fn run_boringssl(include_dirs: &[PathBuf]) {
let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
fs::File::create(out_dir.join("boring_static_wrapper.h"))
.expect("Failed to create boring_static_wrapper.h")
.write_all(INCLUDES.as_bytes())
.expect("Failed to write contents to boring_static_wrapper.h");
let mut builder = bindgen::builder()
.rust_target(RustTarget::Stable_1_47)
.ctypes_prefix("::libc")
.raw_line("use libc::*;")
.derive_default(false)
.enable_function_attribute_detection()
.default_macro_constant_type(MacroTypeVariation::Signed)
.rustified_enum("point_conversion_form_t")
.allowlist_file(".*[/\\\\]openssl/[^/]+\\.h")
.allowlist_recursively(false)
.blocklist_function("BIO_vsnprintf")
.blocklist_function("OPENSSL_vasprintf")
.wrap_static_fns(true)
.wrap_static_fns_path(out_dir.join("boring_static_wrapper").display().to_string())
.layout_tests(false)
.header(
out_dir
.join("boring_static_wrapper.h")
.display()
.to_string(),
);
for include_dir in include_dirs {
builder = builder
.clang_arg("-I")
.clang_arg(include_dir.display().to_string());
}
builder
.generate()
.unwrap()
.write_to_file(out_dir.join("bindgen.rs"))
.unwrap();
cc::Build::new()
.file(out_dir.join("boring_static_wrapper.c"))
.includes(include_dirs)
.compile("boring_static_wrapper");
}
#[cfg(not(feature = "bindgen"))]
pub fn run_boringssl(include_dirs: &[PathBuf]) {
let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
fs::File::create(out_dir.join("boring_static_wrapper.h"))
.expect("Failed to create boring_static_wrapper.h")
.write_all(INCLUDES.as_bytes())
.expect("Failed to write contents to boring_static_wrapper.h");
let mut bindgen_cmd = process::Command::new("bindgen");
bindgen_cmd
.arg("-o")
.arg(out_dir.join("bindgen.rs"))
// Must be a valid version from
// https://docs.rs/bindgen/latest/bindgen/enum.RustTarget.html
.arg("--rust-target=1.47")
.arg("--ctypes-prefix=::libc")
.arg("--raw-line=use libc::*;")
.arg("--no-derive-default")
.arg("--enable-function-attribute-detection")
.arg("--default-macro-constant-type=signed")
.arg("--rustified-enum=point_conversion_form_t")
.arg("--allowlist-file=.*[/\\\\]openssl/[^/]+\\.h")
.arg("--no-recursive-allowlist")
.arg("--blocklist-function=BIO_vsnprintf")
.arg("--blocklist-function=OPENSSL_vasprintf")
.arg("--experimental")
.arg("--wrap-static-fns")
.arg("--wrap-static-fns-path")
.arg(out_dir.join("boring_static_wrapper").display().to_string())
.arg("--no-layout-tests")
.arg(out_dir.join("boring_static_wrapper.h"))
.arg("--")
.arg(format!("--target={}", env::var("TARGET").unwrap()));
for include_dir in include_dirs {
bindgen_cmd.arg("-I").arg(include_dir.display().to_string());
}
let result = bindgen_cmd.status().expect("bindgen failed to execute");
assert!(result.success());
cc::Build::new()
.file(out_dir.join("boring_static_wrapper.c"))
.includes(include_dirs)
.compile("boring_static_wrapper");
}
#[cfg(feature = "bindgen")]
mod bindgen_options {
use bindgen::callbacks::{ItemInfo, ParseCallbacks};
#[derive(Debug)]
pub struct StripPrefixCallback {
remove_prefix: Option<String>,
}
impl StripPrefixCallback {
pub fn new(prefix: &str) -> StripPrefixCallback {
StripPrefixCallback {
remove_prefix: Some(prefix.to_string()),
}
}
}
impl ParseCallbacks for StripPrefixCallback {
fn generated_name_override(&self, item_info: ItemInfo<'_>) -> Option<String> {
self.remove_prefix
.as_ref()
.and_then(|s| item_info.name.strip_prefix(s.as_str()).map(String::from))
}
}
}
#[cfg(feature = "bindgen")]
pub fn run_awslc(include_dirs: &[PathBuf], symbol_prefix: Option<String>) {
let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
fs::File::create(out_dir.join("awslc_static_wrapper.h"))
.expect("Failed to create awslc_static_wrapper.h")
.write_all(INCLUDES.as_bytes())
.expect("Failed to write contents to awslc_static_wrapper.h");
let mut builder = bindgen::builder()
.rust_target(RustTarget::Stable_1_47)
.ctypes_prefix("::libc")
.raw_line("use libc::*;")
.derive_default(false)
.enable_function_attribute_detection()
.default_macro_constant_type(MacroTypeVariation::Signed)
.rustified_enum("point_conversion_form_t")
.allowlist_file(r".*(/|\\)openssl((/|\\)[^/\\]+)+\.h")
.wrap_static_fns(true)
.wrap_static_fns_path(out_dir.join("awslc_static_wrapper").display().to_string())
.layout_tests(false)
.header(out_dir.join("awslc_static_wrapper.h").display().to_string());
if let Some(prefix) = symbol_prefix {
use bindgen_options::StripPrefixCallback;
let callback = StripPrefixCallback::new(prefix.as_str());
builder = builder.parse_callbacks(Box::from(callback));
}
for include_dir in include_dirs {
builder = builder
.clang_arg("-I")
.clang_arg(include_dir.display().to_string());
}
builder
.generate()
.unwrap()
.write_to_file(out_dir.join("bindgen.rs"))
.unwrap();
cc::Build::new()
.file(out_dir.join("awslc_static_wrapper.c"))
.includes(include_dirs)
.compile("awslc_static_wrapper");
}
#[cfg(not(feature = "bindgen"))]
pub fn run_awslc(include_dirs: &[PathBuf], symbol_prefix: Option<String>) {
if symbol_prefix.is_some() {
panic!("aws-lc installation has prefixed symbols, but bindgen-cli does not support removing prefixes. \
Enable the bindgen crate feature to support this installation.")
}
let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
fs::File::create(out_dir.join("awslc_static_wrapper.h"))
.expect("Failed to create awslc_static_wrapper.h")
.write_all(INCLUDES.as_bytes())
.expect("Failed to write contents to awslc_static_wrapper.h");
let mut bindgen_cmd = process::Command::new("bindgen");
bindgen_cmd
.arg("-o")
.arg(out_dir.join("bindgen.rs"))
// Must be a valid version from
// https://docs.rs/bindgen/latest/bindgen/enum.RustTarget.html
.arg("--rust-target=1.47")
.arg("--ctypes-prefix=::libc")
.arg("--raw-line=use libc::*;")
.arg("--no-derive-default")
.arg("--enable-function-attribute-detection")
.arg("--default-macro-constant-type=signed")
.arg("--rustified-enum=point_conversion_form_t")
.arg(r"--allowlist-file=.*(/|\\)openssl((/|\\)[^/\\]+)+\.h")
.arg("--experimental")
.arg("--wrap-static-fns")
.arg("--wrap-static-fns-path")
.arg(out_dir.join("awslc_static_wrapper").display().to_string())
.arg(out_dir.join("awslc_static_wrapper.h"))
.arg("--")
.arg(format!("--target={}", env::var("TARGET").unwrap()));
for include_dir in include_dirs {
bindgen_cmd.arg("-I").arg(include_dir.display().to_string());
}
let result = bindgen_cmd.status().expect("bindgen failed to execute");
assert!(result.success());
cc::Build::new()
.file(out_dir.join("awslc_static_wrapper.c"))
.includes(include_dirs)
.compile("awslc_static_wrapper");
}
#[cfg(feature = "bindgen")]
#[derive(Debug)]
struct OpensslCallbacks;
#[cfg(feature = "bindgen")]
impl ParseCallbacks for OpensslCallbacks {
// for now we'll continue hand-writing constants
fn will_parse_macro(&self, _name: &str) -> MacroParsingBehavior {
MacroParsingBehavior::Ignore
}
fn item_name(&self, original_item_name: &str) -> Option<String> {
match original_item_name {
// Our original definitions of these are wrong, so rename to avoid breakage
"CRYPTO_EX_new"
| "CRYPTO_EX_dup"
| "CRYPTO_EX_free"
| "BIO_meth_set_write"
| "BIO_meth_set_read"
| "BIO_meth_set_puts"
| "BIO_meth_set_ctrl"
| "BIO_meth_set_create"
| "BIO_meth_set_destroy"
| "CRYPTO_set_locking_callback"
| "CRYPTO_set_id_callback"
| "SSL_CTX_set_tmp_dh_callback"
| "SSL_set_tmp_dh_callback"
| "SSL_CTX_set_tmp_ecdh_callback"
| "SSL_set_tmp_ecdh_callback"
| "SSL_CTX_callback_ctrl"
| "SSL_CTX_set_alpn_select_cb" => Some(format!("{}__fixed_rust", original_item_name)),
_ => None,
}
}
}
|
