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[mod_openssl] prefer some WolfSSL native APIs

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Prefer some WolfSSL native APIs when building with WolfSSL.

However, some functionality in WolfSSL is available only through the
WolfSSL compatibility layer for OpenSSL, so the effort to create a
native mod_wolfssl halted here.
personal/stbuehler/ci-build
Glenn Strauss 3 years ago
parent ed088f5728
commit 98a224a4a2
7 changed files with 856 additions and 19 deletions
Show Stats Download Patch File Download Diff File

3
src/configfile.c
Unescape View File

@ -711,7 +711,8 @@ static int config_insert_srvconf(server *srv) {
#if !defined(USE_OPENSSL_CRYPTO) \
&& !defined(USE_MBEDTLS_CRYPTO) \
&& !defined(USE_NSS_CRYPTO) \
&& !defined(USE_GNUTLS_CRYPTO)
&& !defined(USE_GNUTLS_CRYPTO) \
&& !defined(USE_WOLFSSL_CRYPTO)
if (ssl_enabled) {
log_error(srv->errh, __FILE__, __LINE__,
"ssl support is missing; "

663
src/mod_openssl.c
Unescape View File

@ -57,10 +57,14 @@
* or HAVE_LIGHTY. WolfSSL does not provide many interfaces added in
* OpenSSL 1.0.2, including SSL_CTX_set_cert_cb(), so it is curious that
* WolFSSL defines OPENSSL_VERSION_NUMBER 0x10100000L for WOLFSSL_APACHE_HTTPD*/
#ifndef OPENSSL_EXTRA
#define OPENSSL_EXTRA
#endif
#ifndef OPENSSL_ALL
#define OPENSSL_ALL
#endif
#include <wolfssl/ssl.h>
#include <wolfssl/crl.h>
#endif
#include <openssl/ssl.h>
@ -93,6 +97,7 @@
#endif
#ifdef WOLFSSL_VERSION
#ifdef HAVE_ALPN
#undef OPENSSL_NO_TLSEXT
#else
@ -106,12 +111,41 @@ static char global_err_buf[WOLFSSL_MAX_ERROR_SZ];
#define ERR_error_string(e,b) \
(wolfSSL_ERR_error_string_n((e),global_err_buf,WOLFSSL_MAX_ERROR_SZ), \
global_err_buf)
#define OPENSSL_NO_POSIX_IO /* WolfSSL does not provide BIO_new_fd(); use alt */
#include "safe_memclear.h" /* WolfSSL does not provide OPENSSL_cleanse() */
#define OPENSSL_cleanse(x,sz) safe_memclear((x),(sz))
#define SSL_set_read_ahead(x,y) ((void)(y)) /*WolfSSL no SSL_set_read_ahead()*/
#if 0 /* symbols and definitions requires WolfSSL built with -DOPENSSL_EXTRA */
#define SSL_TLSEXT_ERR_OK 0
#define SSL_TLSEXT_ERR_ALERT_FATAL alert_fatal
#define SSL_TLSEXT_ERR_NOACK alert_warning
WOLFSSL_API void wolfSSL_set_verify_depth(WOLFSSL *ssl,int depth);
WOLFSSL_API void wolfSSL_X509_NAME_free(WOLFSSL_X509_NAME* name);
#define X509_NAME_cmp wolfSSL_X509_NAME_cmp
WOLFSSL_API int wolfSSL_X509_NAME_cmp(const WOLFSSL_X509_NAME* x, const WOLFSSL_X509_NAME* y);
WOLFSSL_API WOLFSSL_X509_NAME* wolfSSL_X509_NAME_dup(WOLFSSL_X509_NAME*);
WOLFSSL_API char* wolfSSL_X509_get_name_oneline(WOLFSSL_X509_NAME*, char*, int);
#undef OBJ_sn2nid
#define OBJ_sn2nid(sn) wc_OBJ_sn2nid(sn)
WOLFSSL_API const char* wolfSSL_OBJ_nid2sn(int n);
WOLFSSL_API int wolfSSL_OBJ_obj2nid(const WOLFSSL_ASN1_OBJECT *o);
WOLFSSL_API WOLFSSL_ASN1_OBJECT * wolfSSL_X509_NAME_ENTRY_get_object(WOLFSSL_X509_NAME_ENTRY *ne);
#define X509_NAME_get_entry wolfSSL_X509_NAME_get_entry
WOLFSSL_API WOLFSSL_X509_NAME_ENTRY *wolfSSL_X509_NAME_get_entry(WOLFSSL_X509_NAME *name, int loc);
#endif
#if 0 /* symbols and definitions requires WolfSSL built with -DOPENSSL_ALL */
WOLFSSL_API WOLF_STACK_OF(WOLFSSL_X509_NAME) *wolfSSL_dup_CA_list( WOLF_STACK_OF(WOLFSSL_X509_NAME) *sk );
/*wolfSSL_sk_X509_NAME_new()*/
/*wolfSSL_sk_X509_NAME_push()*/
#endif
#endif /* WOLFSSL_VERSION */
#include "base.h"
#include "fdevent.h"
#include "http_header.h"
@ -120,9 +154,15 @@ static char global_err_buf[WOLFSSL_MAX_ERROR_SZ];
typedef struct {
/* SNI per host: with COMP_SERVER_SOCKET, COMP_HTTP_SCHEME, COMP_HTTP_HOST */
#ifdef WOLFSSL_VERSION
buffer *ssl_pemfile_pkey;
buffer *ssl_pemfile_x509;
buffer **ssl_pemfile_chain;
#else
EVP_PKEY *ssl_pemfile_pkey;
X509 *ssl_pemfile_x509;
STACK_OF(X509) *ssl_pemfile_chain;
#endif
buffer *ssl_stapling;
const buffer *ssl_pemfile;
const buffer *ssl_privkey;
@ -578,6 +618,18 @@ static void mod_openssl_free_openssl (void)
}
#ifdef WOLFSSL_VERSION
static void
mod_wolfssl_free_der_certs (buffer **certs)
{
if (NULL == certs) return;
for (int i = 0; NULL != certs[i]; ++i)
buffer_free(certs[i]);
free(certs);
}
#endif
static void
mod_openssl_free_config (server *srv, plugin_data * const p)
{
@ -606,9 +658,15 @@ mod_openssl_free_config (server *srv, plugin_data * const p)
case 0: /* ssl.pemfile */
if (cpv->vtype == T_CONFIG_LOCAL) {
plugin_cert *pc = cpv->v.v;
#ifdef WOLFSSL_VERSION
buffer_free(pc->ssl_pemfile_pkey);
/*buffer_free(pc->ssl_pemfile_x509);*//*(part of chain)*/
mod_wolfssl_free_der_certs(pc->ssl_pemfile_chain);
#else
EVP_PKEY_free(pc->ssl_pemfile_pkey);
X509_free(pc->ssl_pemfile_x509);
sk_X509_pop_free(pc->ssl_pemfile_chain, X509_free);
#endif
buffer_free(pc->ssl_stapling);
}
break;
@ -632,6 +690,371 @@ mod_openssl_free_config (server *srv, plugin_data * const p)
}
#ifdef WOLFSSL_VERSION
#define OPENSSL_NO_POSIX_IO /* WolfSSL does not provide BIO_new_fd(); use alt */
/* WolfSSL OpenSSL compat API does not wipe temp mem used; write our own */
/* (pemfile might contain private key)*/
/* code here is based on similar code in mod_nss */
#include "base64.h"
#define PEM_BEGIN "-----BEGIN "
#define PEM_END "-----END "
#define PEM_BEGIN_CERT "-----BEGIN CERTIFICATE-----"
#define PEM_END_CERT "-----END CERTIFICATE-----"
#define PEM_BEGIN_TRUSTED_CERT "-----BEGIN TRUSTED CERTIFICATE-----"
#define PEM_END_TRUSTED_CERT "-----END TRUSTED CERTIFICATE-----"
#define PEM_BEGIN_PKEY "-----BEGIN PRIVATE KEY-----"
#define PEM_END_PKEY "-----END PRIVATE KEY-----"
#define PEM_BEGIN_EC_PKEY "-----BEGIN EC PRIVATE KEY-----"
#define PEM_END_EC_PKEY "-----END EC PRIVATE KEY-----"
#define PEM_BEGIN_RSA_PKEY "-----BEGIN RSA PRIVATE KEY-----"
#define PEM_END_RSA_PKEY "-----END RSA PRIVATE KEY-----"
#define PEM_BEGIN_DSA_PKEY "-----BEGIN DSA PRIVATE KEY-----"
#define PEM_END_DSA_PKEY "-----END DSA PRIVATE KEY-----"
#define PEM_BEGIN_ANY_PKEY "-----BEGIN ANY PRIVATE KEY-----"
#define PEM_END_ANY_PKEY "-----END ANY PRIVATE KEY-----"
/* (not implemented: support to get password from user for encrypted key) */
#define PEM_BEGIN_ENCRYPTED_PKEY "-----BEGIN ENCRYPTED PRIVATE KEY-----"
#define PEM_END_ENCRYPTED_PKEY "-----END ENCRYPTED PRIVATE KEY-----"
#define PEM_BEGIN_X509_CRL "-----BEGIN X509 CRL-----"
#define PEM_END_X509_CRL "-----END X509 CRL-----"
static buffer *
mod_wolfssl_load_pem_file (const char *fn, log_error_st *errh, buffer ***chain)
{
off_t dlen = 512*1024*1024;/*(arbitrary limit: 512 MB file; expect < 1 MB)*/
char *data = fdevent_load_file(fn, &dlen, errh, malloc, free);
if (NULL == data) return NULL;
buffer **certs = NULL;
int rc = -1;
do {
int count = 0;
char *b = data;
for (; (b = strstr(b, PEM_BEGIN_CERT)); b += sizeof(PEM_BEGIN_CERT)-1)
++count;
b = data;
for (; (b = strstr(b, PEM_BEGIN_TRUSTED_CERT));
b += sizeof(PEM_BEGIN_TRUSTED_CERT)-1)
++count;
if (0 == count) {
rc = 0;
break;
}
certs = malloc((count+1) * sizeof(buffer *));
force_assert(NULL != certs);
certs[count] = NULL;
for (int i = 0; i < count; ++i)
certs[i] = buffer_init();
buffer *der;
int i = 0;
for (char *e = data; (b = strstr(e, PEM_BEGIN_CERT)); ++i) {
b += sizeof(PEM_BEGIN_CERT)-1;
if (*b == '\r') ++b;
if (*b == '\n') ++b;
e = strstr(b, PEM_END_CERT);
if (NULL == e) break;
uint32_t len = (uint32_t)(e - b);
e += sizeof(PEM_END_CERT)-1;
if (i >= count) break; /*(should not happen)*/
der = certs[i];
if (NULL == buffer_append_base64_decode(der,b,len,BASE64_STANDARD))
break;
}
for (char *e = data; (b = strstr(e, PEM_BEGIN_TRUSTED_CERT)); ++i) {
b += sizeof(PEM_BEGIN_TRUSTED_CERT)-1;
if (*b == '\r') ++b;
if (*b == '\n') ++b;
e = strstr(b, PEM_END_TRUSTED_CERT);
if (NULL == e) break;
uint32_t len = (uint32_t)(e - b);
e += sizeof(PEM_END_TRUSTED_CERT)-1;
if (i >= count) break; /*(should not happen)*/
der = certs[i];
if (NULL == buffer_append_base64_decode(der,b,len,BASE64_STANDARD))
break;
}
if (i == count)
rc = 0;
else
errno = EIO;
} while (0);
if (dlen) safe_memclear(data, dlen);
free(data);
if (rc < 0) {
log_perror(errh, __FILE__, __LINE__, "error loading %s", fn);
mod_wolfssl_free_der_certs(certs);
certs = NULL;
}
*chain = certs;
return certs ? certs[0] : NULL;
}
static buffer *
mod_wolfssl_evp_pkey_load_pem_file (const char *fn, log_error_st *errh)
{
off_t dlen = 512*1024*1024;/*(arbitrary limit: 512 MB file; expect < 1 MB)*/
char *data = fdevent_load_file(fn, &dlen, errh, malloc, free);
if (NULL == data) return NULL;
buffer *pkey = NULL;
int rc = -1;
do {
/*(expecting single private key in file, so first match)*/
char *b, *e;
if ((b = strstr(data, PEM_BEGIN_PKEY))
&& (e = strstr(b, PEM_END_PKEY)))
b += sizeof(PEM_BEGIN_PKEY)-1;
else if ((b = strstr(data, PEM_BEGIN_EC_PKEY))
&& (e = strstr(b, PEM_END_EC_PKEY)))
b += sizeof(PEM_BEGIN_EC_PKEY)-1;
else if ((b = strstr(data, PEM_BEGIN_RSA_PKEY))
&& (e = strstr(b, PEM_END_RSA_PKEY)))
b += sizeof(PEM_BEGIN_RSA_PKEY)-1;
else if ((b = strstr(data, PEM_BEGIN_DSA_PKEY))
&& (e = strstr(b, PEM_END_DSA_PKEY)))
b += sizeof(PEM_BEGIN_DSA_PKEY)-1;
else if ((b = strstr(data, PEM_BEGIN_ANY_PKEY))
&& (e = strstr(b, PEM_END_ANY_PKEY)))
b += sizeof(PEM_BEGIN_ANY_PKEY)-1;
else
break;
if (*b == '\r') ++b;
if (*b == '\n') ++b;
pkey = buffer_init();
size_t len = (size_t)(e - b);
if (NULL == buffer_append_base64_decode(pkey, b, len, BASE64_STANDARD))
break;
rc = 0;
} while (0);
if (dlen) safe_memclear(data, dlen);
free(data);
if (rc < 0) {
log_error(errh, __FILE__, __LINE__, "%s() %s", __func__, fn);
return NULL;
}
return pkey;
}
static int
mod_wolfssl_CTX_use_certificate_chain_file (WOLFSSL_CTX *ssl_ctx, const char *fn, log_error_st *errh)
{
/* (While it should be possible to parse DERs from (buffer **)
* s->pc->ssl_pemfile_chain, it is simpler to re-read file and use the
* built-in wolfSSL_CTX_use_certificate_chain_buffer() interface) */
off_t dlen = 4*1024*1024;/*(arbitrary limit: 4 MB file; expect < 1 KB)*/
char *data = fdevent_load_file(fn, &dlen, errh, malloc, free);
if (NULL == data) return -1;
int rc = wolfSSL_CTX_use_certificate_chain_buffer(ssl_ctx,
(unsigned char *)data,
(long)dlen);
if (dlen) safe_memclear(data, dlen);
free(data);
if (rc == WOLFSSL_SUCCESS)
return 1;
log_error(errh, __FILE__, __LINE__,
"SSL: %s %s", ERR_error_string(rc, NULL), fn);
return 0;
}
static STACK_OF(X509_NAME) *
mod_wolfssl_load_client_CA_file (const buffer *ssl_ca_file, log_error_st *errh)
{
/* similar to wolfSSL_load_client_CA_file(), plus some processing */
buffer **certs = NULL;
if (NULL == mod_wolfssl_load_pem_file(ssl_ca_file->ptr, errh, &certs)) {
return NULL;
}
WOLF_STACK_OF(WOLFSSL_X509_NAME) *canames = wolfSSL_sk_X509_NAME_new(NULL);
if (NULL == canames) {
mod_wolfssl_free_der_certs(certs);
return NULL;
}
for (int i = 0; NULL != certs[i]; ++i) {
WOLFSSL_X509 *ca =
wolfSSL_X509_load_certificate_buffer((unsigned char *)certs[i]->ptr,
(int)
buffer_string_length(certs[i]),
WOLFSSL_FILETYPE_ASN1);
WOLFSSL_X509_NAME *subj = NULL;
if (NULL == ca
|| NULL == (subj = wolfSSL_X509_get_subject_name(ca))
|| 0 != wolfSSL_sk_X509_NAME_push(canames,
wolfSSL_X509_NAME_dup(subj))) {
log_error(errh, __FILE__, __LINE__,
"SSL: couldn't read X509 certificates from '%s'",
ssl_ca_file->ptr);
if (subj) wolfSSL_X509_NAME_free(subj);
if (ca) wolfSSL_X509_free(ca);
wolfSSL_sk_X509_NAME_free(canames);
mod_wolfssl_free_der_certs(certs);
return NULL;
}
wolfSSL_X509_free(ca);
}
mod_wolfssl_free_der_certs(certs);
return canames;
}
static plugin_cacerts *
mod_wolfssl_load_cacerts (const buffer *ssl_ca_file, log_error_st *errh)
{
/* similar to mod_wolfSSL_load_client_CA_file(), plus some processing */
/* similar to wolfSSL_load_client_CA_file(), plus some processing */
buffer **certs = NULL;
if (NULL == mod_wolfssl_load_pem_file(ssl_ca_file->ptr, errh, &certs)) {
return NULL;
}
WOLFSSL_X509_STORE *castore = wolfSSL_X509_STORE_new();
if (NULL == castore) {
mod_wolfssl_free_der_certs(certs);
return NULL;
}
WOLF_STACK_OF(WOLFSSL_X509_NAME) *canames = wolfSSL_sk_X509_NAME_new(NULL);
if (NULL == canames) {
wolfSSL_X509_STORE_free(castore);
mod_wolfssl_free_der_certs(certs);
return NULL;
}
for (int i = 0; NULL != certs[i]; ++i) {
WOLFSSL_X509 *ca =
wolfSSL_X509_load_certificate_buffer((unsigned char *)certs[i]->ptr,
(int)
buffer_string_length(certs[i]),
WOLFSSL_FILETYPE_ASN1);
WOLFSSL_X509_NAME *subj = NULL;
if (NULL == ca || !wolfSSL_X509_STORE_add_cert(castore, ca)
|| NULL == (subj = wolfSSL_X509_get_subject_name(ca))
|| 0 != wolfSSL_sk_X509_NAME_push(canames,
wolfSSL_X509_NAME_dup(subj))) {
log_error(errh, __FILE__, __LINE__,
"SSL: couldn't read X509 certificates from '%s'",
ssl_ca_file->ptr);
if (subj) wolfSSL_X509_NAME_free(subj);
if (ca) wolfSSL_X509_free(ca);
wolfSSL_sk_X509_NAME_free(canames);
wolfSSL_X509_STORE_free(castore);
mod_wolfssl_free_der_certs(certs);
return NULL;
}
wolfSSL_X509_free(ca);
}
mod_wolfssl_free_der_certs(certs);
plugin_cacerts *cacerts = malloc(sizeof(plugin_cacerts));
force_assert(cacerts);
cacerts->names = canames;
cacerts->certs = castore;
return cacerts;
}
static int
mod_wolfssl_load_cacrls (WOLFSSL_CTX *ssl_ctx, const buffer *ssl_ca_crl_file, server *srv)
{
#ifdef HAVE_CRL /* <wolfssl/options.h> */
int rc = wolfSSL_CTX_EnableCRL(ssl_ctx,
WOLFSSL_CRL_CHECK | WOLFSSL_CRL_CHECKALL);
if (rc != WOLFSSL_SUCCESS) return 0;
const char *fn = ssl_ca_crl_file->ptr;
off_t dlen = 512*1024*1024;/*(arbitrary limit: 512 MB file; expect < 1 MB)*/
char *data = fdevent_load_file(fn, &dlen, srv->errh, malloc, free);
if (NULL == data) return 0;
rc = wolfSSL_CTX_LoadCRLBuffer(ssl_ctx, (byte *)data, (long)dlen,
WOLFSSL_FILETYPE_PEM);
if (dlen) safe_memclear(data, dlen);
free(data);
if (rc == WOLFSSL_SUCCESS)
return 1;
log_error(srv->errh, __FILE__, __LINE__,
"SSL: %s %s", ERR_error_string(rc, NULL), fn);
return 0;
#else
UNUSED(ssl_ctx);
log_error(srv->errh, __FILE__, __LINE__,
"WolfSSL not built with CRL support; ignoring %s", ssl_ca_crl_file->ptr);
return WOLFSSL_FAILURE;
#endif
}
static int
mod_wolfssl_load_verify_locn (SSL_CTX *ssl_ctx, const buffer *b, server *srv)
{
const char *fn = b->ptr;
off_t dlen = 512*1024*1024;/*(arbitrary limit: 512 MB file; expect < 1 MB)*/
char *data = fdevent_load_file(fn, &dlen, srv->errh, malloc, free);
if (NULL == data) return 0;
int rc = wolfSSL_CTX_load_verify_buffer(ssl_ctx, (unsigned char *)data,
(long)dlen, WOLFSSL_FILETYPE_PEM);
if (dlen) safe_memclear(data, dlen);
free(data);
if (rc == WOLFSSL_SUCCESS)
return 1;
log_error(srv->errh, __FILE__, __LINE__,
"SSL: %s %s", ERR_error_string(rc, NULL), fn);
return 0;
}
static int
mod_wolfssl_load_ca_files (SSL_CTX *ssl_ctx, plugin_data *p, server *srv)
{
/* load all ssl.ca-files specified in the config into each SSL_CTX */
for (uint32_t i = 0, used = p->cafiles->used; i < used; ++i) {
const buffer *b = &((data_string *)p->cafiles->data[i])->value;
if (!mod_wolfssl_load_verify_locn(ssl_ctx, b, srv))
return 0;
}
return 1;
}
#else /* !defined(WOLFSSL_VERSION) */
/* openssl BIO_s_file() employs system stdio
* system stdio buffers reads and does not guarantee to clear buffer memory
* 'man PEM_bytes_read_bio_secmem()' and see NOTES section for more info
@ -702,7 +1125,6 @@ BIO_new_rdonly_file (const char *file)
* As this comment is being written, only openssl 1.1.1 is actively maintained.
* Earlier vers of openssl no longer receive security patches from openssl.org.
*/
#ifndef WOLFSSL_VERSION /* WolfSSL limitation; does not wipe temp mem used */
static void *
PEM_ASN1_read_bio_secmem(d2i_of_void *d2i, const char *name, BIO *bp, void **x,
pem_password_cb *cb, void *u)
@ -734,7 +1156,6 @@ PEM_ASN1_read_bio_secmem(d2i_of_void *d2i, const char *name, BIO *bp, void **x,
#endif
return ret;
}
#endif
static X509 *
@ -896,6 +1317,9 @@ mod_openssl_load_ca_files (SSL_CTX *ssl_ctx, plugin_data *p, server *srv)
#endif
#endif /* !defined(WOLFSSL_VERSION) */
FREE_FUNC(mod_openssl_free)
{
plugin_data *p = p_d;
@ -985,6 +1409,10 @@ mod_openssl_patch_config (request_st * const r, plugin_config * const pconf)
static int
safer_X509_NAME_oneline(X509_NAME *name, char *buf, size_t sz)
{
#ifdef WOLFSSL_VERSION
if (wolfSSL_X509_get_name_oneline(name, buf, (int)sz))
return (int)strlen(buf);
#else
BIO *bio = BIO_new(BIO_s_mem());
if (bio) {
int len = X509_NAME_print_ex(bio, name, 0, XN_FLAG_ONELINE);
@ -992,6 +1420,7 @@ safer_X509_NAME_oneline(X509_NAME *name, char *buf, size_t sz)
BIO_free(bio);
return len; /*return value has similar semantics to that of snprintf()*/
}
#endif
else {
buf[0] = '\0';
return -1;
@ -1139,7 +1568,14 @@ mod_openssl_cert_cb (SSL *ssl, void *arg)
/* first set certificate!
* setting private key checks whether certificate matches it */
if (1 != SSL_use_certificate(ssl, pc->ssl_pemfile_x509)) {
#ifdef WOLFSSL_VERSION
buffer *cert = pc->ssl_pemfile_x509;
if (1 != wolfSSL_use_certificate_ASN1(ssl, (unsigned char *)cert->ptr,
(int)buffer_string_length(cert)))
#else
if (1 != SSL_use_certificate(ssl, pc->ssl_pemfile_x509))
#endif
{
log_error(hctx->r->conf.errh, __FILE__, __LINE__,
"SSL: failed to set certificate for TLS server name %s: %s",
hctx->r->uri.authority.ptr, ERR_error_string(ERR_get_error(), NULL));
@ -1178,7 +1614,15 @@ mod_openssl_cert_cb (SSL *ssl, void *arg)
#endif
#endif
if (1 != SSL_use_PrivateKey(ssl, pc->ssl_pemfile_pkey)) {
#ifdef WOLFSSL_VERSION
buffer *pkey = pc->ssl_pemfile_pkey;
if (1 != wolfSSL_use_PrivateKey_buffer(ssl, (unsigned char *)pkey->ptr,
(int)buffer_string_length(pkey),
WOLFSSL_FILETYPE_ASN1))
#else
if (1 != SSL_use_PrivateKey(ssl, pc->ssl_pemfile_pkey))
#endif
{
log_error(hctx->r->conf.errh, __FILE__, __LINE__,
"SSL: failed to set private key for TLS server name %s: %s",
hctx->r->uri.authority.ptr, ERR_error_string(ERR_get_error(), NULL));
@ -1335,6 +1779,7 @@ network_ssl_servername_callback (SSL *ssl, int *al, void *srv)
#endif
#ifndef WOLFSSL_VERSION
static X509 *
mod_openssl_load_pem_file (const char *file, log_error_st *errh, STACK_OF(X509) **chain)
{
@ -1360,8 +1805,10 @@ mod_openssl_load_pem_file (const char *file, log_error_st *errh, STACK_OF(X509)
BIO_free(in);
return x;
}
#endif
#ifndef WOLFSSL_VERSION
static EVP_PKEY *
mod_openssl_evp_pkey_load_pem_file (const char *file, log_error_st *errh)
{
@ -1380,10 +1827,19 @@ mod_openssl_evp_pkey_load_pem_file (const char *file, log_error_st *errh)
return x;
}
#endif
#ifndef OPENSSL_NO_OCSP
#ifdef WOLFSSL_VERSION
#define OCSP_RESPONSE OcspResponse
#define OCSP_RESPONSE_free wolfSSL_OCSP_RESPONSE_free
#define d2i_OCSP_RESPONSE_bio wolfSSL_d2i_OCSP_RESPONSE_bio
#define d2i_OCSP_RESPONSE wolfSSL_d2i_OCSP_RESPONSE
#define i2d_OCSP_RESPONSE wolfSSL_i2d_OCSP_RESPONSE
#endif
static buffer *
mod_openssl_load_stapling_file (const char *file, log_error_st *errh, buffer *b)
{
@ -1453,7 +1909,7 @@ mod_openssl_load_stapling_file (const char *file, log_error_st *errh, buffer *b)
}
#ifndef BORINGSSL_API_VERSION
#if !defined(BORINGSSL_API_VERSION) && !defined(WOLFSSL_VERSION)
static time_t
mod_openssl_asn1_time_to_posix (ASN1_TIME *asn1time)
{
@ -1562,7 +2018,7 @@ mod_openssl_asn1_time_to_posix (ASN1_TIME *asn1time)
static time_t
mod_openssl_ocsp_next_update (plugin_cert *pc)
{
#ifdef BORINGSSL_API_VERSION
#if defined(BORINGSSL_API_VERSION) || defined(WOLFSSL_VERSION)
UNUSED(pc);
return (time_t)-1; /*(not implemented)*/
#else
@ -1580,6 +2036,15 @@ mod_openssl_ocsp_next_update (plugin_cert *pc)
ASN1_TIME *nextupd = NULL;
#ifdef WOLFSSL_VERSION /* WolfSSL limitation */
/* WolfSSL does not provide OCSP_resp_get0() OCSP_single_get0_status() */
/* (inactive code path; alternative path followed in #if above for WolfSSL)
* (chain not currently available in mod_openssl when used with WolfSSL)
* (For WolfSSL, pc->ssl_pemfile_chain might not be filled in with actual
* chain, but is used to store (buffer **) of DER decoded from PEM certs
* read from ssl.pemfile, which may be a single cert, pc->ssl_pemfile_x509.
* The chain is not calculated or filled in if single cert, and neither are
* (X509 *), though (X509 *) could be temporarily created to calculated
* (OCSP_CERTID *), which additionally could be calculated once at startup)
*/
OCSP_CERTID *id = (NULL != pc->ssl_pemfile_chain)
? OCSP_cert_to_id(NULL, pc->ssl_pemfile_x509,
sk_X509_value(pc->ssl_pemfile_chain, 0))
@ -1712,6 +2177,23 @@ network_openssl_load_pemfile (server *srv, const buffer *pemfile, const buffer *
{
if (!mod_openssl_init_once_openssl(srv)) return NULL;
#ifdef WOLFSSL_VERSION
buffer **ssl_pemfile_chain = NULL;
buffer *ssl_pemfile_x509 =
mod_wolfssl_load_pem_file(pemfile->ptr, srv->errh, &ssl_pemfile_chain);
if (NULL == ssl_pemfile_x509)
return NULL;
buffer *ssl_pemfile_pkey =
mod_wolfssl_evp_pkey_load_pem_file(privkey->ptr, srv->errh);
if (NULL == ssl_pemfile_pkey) {
/*buffer_free(ssl_pemfile_x509);*//*(part of chain)*/
mod_wolfssl_free_der_certs(ssl_pemfile_chain);
return NULL;
}
/* X509_check_private_key() is a stub func (not implemented) in WolfSSL */
#else
STACK_OF(X509) *ssl_pemfile_chain = NULL;
X509 *ssl_pemfile_x509 =
mod_openssl_load_pem_file(pemfile->ptr, srv->errh, &ssl_pemfile_chain);
@ -1736,6 +2218,7 @@ network_openssl_load_pemfile (server *srv, const buffer *pemfile, const buffer *
sk_X509_pop_free(ssl_pemfile_chain, X509_free);
return NULL;
}
#endif
plugin_cert *pc = malloc(sizeof(plugin_cert));
force_assert(pc);
@ -1749,7 +2232,14 @@ network_openssl_load_pemfile (server *srv, const buffer *pemfile, const buffer *
pc->ssl_stapling_loadts = 0;
pc->ssl_stapling_nextts = 0;
#ifndef OPENSSL_NO_OCSP
#ifdef WOLFSSL_VERSION
/*(not implemented for WolfSSL, though could convert the DER to (X509 *),
* check Must-Staple, and then destroy (X509 *))*/
(void)mod_openssl_crt_must_staple(NULL);
pc->must_staple = 0;
#else
pc->must_staple = mod_openssl_crt_must_staple(ssl_pemfile_x509);
#endif
#else
pc->must_staple = 0;
#endif
@ -1785,9 +2275,15 @@ mod_openssl_acme_tls_1 (SSL *ssl, handler_ctx *hctx)
buffer * const b = hctx->tmp_buf;
const buffer * const name = &hctx->r->uri.authority;
log_error_st * const errh = hctx->r->conf.errh;
#ifdef WOLFSSL_VERSION
buffer *ssl_pemfile_x509 = NULL;
buffer *ssl_pemfile_pkey = NULL;
buffer **ssl_pemfile_chain = NULL;
#else
X509 *ssl_pemfile_x509 = NULL;
STACK_OF(X509) *ssl_pemfile_chain = NULL;
EVP_PKEY *ssl_pemfile_pkey = NULL;
#endif
size_t len;
int rc = SSL_TLSEXT_ERR_ALERT_FATAL;
@ -1812,8 +2308,13 @@ mod_openssl_acme_tls_1 (SSL *ssl, handler_ctx *hctx)
do {
buffer_append_string_len(b, CONST_STR_LEN(".crt.pem"));
#ifdef WOLFSSL_VERSION
ssl_pemfile_x509 =
mod_wolfssl_load_pem_file(b->ptr, errh, &ssl_pemfile_chain);
#else
ssl_pemfile_x509 =
mod_openssl_load_pem_file(b->ptr, errh, &ssl_pemfile_chain);
#endif
if (NULL == ssl_pemfile_x509) {
log_error(errh, __FILE__, __LINE__,
"SSL: Failed to load acme-tls/1 pemfile: %s", b->ptr);
@ -1822,7 +2323,11 @@ mod_openssl_acme_tls_1 (SSL *ssl, handler_ctx *hctx)
buffer_string_set_length(b, len); /*(remove ".crt.pem")*/
buffer_append_string_len(b, CONST_STR_LEN(".key.pem"));
#ifdef WOLFSSL_VERSION
ssl_pemfile_pkey = mod_wolfssl_evp_pkey_load_pem_file(b->ptr, errh);
#else
ssl_pemfile_pkey = mod_openssl_evp_pkey_load_pem_file(b->ptr, errh);
#endif
if (NULL == ssl_pemfile_pkey) {
log_error(errh, __FILE__, __LINE__,
"SSL: Failed to load acme-tls/1 pemfile: %s", b->ptr);
@ -1841,7 +2346,14 @@ mod_openssl_acme_tls_1 (SSL *ssl, handler_ctx *hctx)
/* first set certificate!
* setting private key checks whether certificate matches it */
if (1 != SSL_use_certificate(ssl, ssl_pemfile_x509)) {
#ifdef WOLFSSL_VERSION
buffer *cert = ssl_pemfile_x509;
if (1 != wolfSSL_use_certificate_ASN1(ssl, (unsigned char *)cert->ptr,
(int)buffer_string_length(cert)))
#else
if (1 != SSL_use_certificate(ssl, ssl_pemfile_x509))
#endif
{
log_error(errh, __FILE__, __LINE__,
"SSL: failed to set acme-tls/1 certificate for TLS server "
"name %s: %s", name->ptr, ERR_error_string(ERR_get_error(),NULL));
@ -1858,7 +2370,15 @@ mod_openssl_acme_tls_1 (SSL *ssl, handler_ctx *hctx)
#endif
}
if (1 != SSL_use_PrivateKey(ssl, ssl_pemfile_pkey)) {
#ifdef WOLFSSL_VERSION
buffer *pkey = ssl_pemfile_pkey;
if (1 != wolfSSL_use_PrivateKey_buffer(ssl, (unsigned char *)pkey->ptr,
(int)buffer_string_length(pkey),
WOLFSSL_FILETYPE_ASN1))
#else
if (1 != SSL_use_PrivateKey(ssl, ssl_pemfile_pkey))
#endif
{
log_error(errh, __FILE__, __LINE__,
"SSL: failed to set acme-tls/1 private key for TLS server "
"name %s: %s", name->ptr, ERR_error_string(ERR_get_error(),NULL));
@ -1870,10 +2390,16 @@ mod_openssl_acme_tls_1 (SSL *ssl, handler_ctx *hctx)
rc = SSL_TLSEXT_ERR_OK;
} while (0);
#ifdef WOLFSSL_VERSION
if (ssl_pemfile_pkey) buffer_free(ssl_pemfile_pkey);
/*if (ssl_pemfile_x509) buffer_free(ssl_pemfile_x509);*//*(part of chain)*/
mod_wolfssl_free_der_certs(ssl_pemfile_chain);
#else
if (ssl_pemfile_pkey) EVP_PKEY_free(ssl_pemfile_pkey);
if (ssl_pemfile_x509) X509_free(ssl_pemfile_x509);
if (ssl_pemfile_chain)
sk_X509_pop_free(ssl_pemfile_chain, X509_free);
#endif
return rc;
}
@ -2181,10 +2707,12 @@ network_init_ssl (server *srv, plugin_config_socket *s, plugin_data *p)
return -1;
}
#if !defined(WOLFSSL_VERSION) || !defined(NO_SESSION_CACHE)
/* disable session cache; session tickets are preferred */
SSL_CTX_set_session_cache_mode(s->ssl_ctx, SSL_SESS_CACHE_OFF
| SSL_SESS_CACHE_NO_AUTO_CLEAR
| SSL_SESS_CACHE_NO_INTERNAL);
#endif
if (s->ssl_empty_fragments) {
#ifdef SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
@ -2246,6 +2774,25 @@ network_init_ssl (server *srv, plugin_config_socket *s, plugin_data *p)
{
DH *dh;
/* Support for Diffie-Hellman key exchange */
#ifdef WOLFSSL_VERSION
if (!buffer_string_is_empty(s->ssl_dh_file)) {
const char *fn = s->ssl_dh_file->ptr;
off_t dlen = 1*1024*1024;/*(arbitrary limit: 1 MB; expect < 1 KB)*/
char *data = fdevent_load_file(fn, &dlen, srv->errh, malloc, free);
int rc = (NULL != data) ? 0 : -1;
if (0 == rc)
wolfSSL_CTX_SetTmpDH_buffer(s->ssl_ctx, (unsigned char *)data,
(long)dlen, WOLFSSL_FILETYPE_PEM);
if (dlen) safe_memclear(data, dlen);
free(data);
if (rc < 0) {
log_error(srv->errh, __FILE__, __LINE__,
"SSL: Unable to read DH params from file %s",
s->ssl_dh_file->ptr);
return -1;
}
}
#else
if (!buffer_string_is_empty(s->ssl_dh_file)) {
/* DH parameters from file */
BIO *bio;
@ -2262,17 +2809,21 @@ network_init_ssl (server *srv, plugin_config_socket *s, plugin_data *p)
"SSL: PEM_read_bio_DHparams failed %s", s->ssl_dh_file->ptr);
return -1;
}
} else {
SSL_CTX_set_tmp_dh(s->ssl_ctx,dh);
DH_free(dh);
}
#endif
else {
dh = get_dh2048();
if (dh == NULL) {
log_error(srv->errh, __FILE__, __LINE__,
"SSL: get_dh2048() failed");
return -1;
}
SSL_CTX_set_tmp_dh(s->ssl_ctx,dh);
DH_free(dh);
}
SSL_CTX_set_tmp_dh(s->ssl_ctx,dh);
SSL_CTX_set_options(s->ssl_ctx,SSL_OP_SINGLE_DH_USE);
DH_free(dh);
}
#else
if (!buffer_string_is_empty(s->ssl_dh_file)) {
@ -2317,7 +2868,11 @@ network_init_ssl (server *srv, plugin_config_socket *s, plugin_data *p)
* XXX: This might be a bit excessive, but are all trusted CAs
* TODO: prefer to load on-demand in mod_openssl_cert_cb()
* for openssl >= 1.0.2 */
#ifdef WOLFSSL_VERSION
if (!mod_wolfssl_load_ca_files(s->ssl_ctx, p, srv))
#else
if (!mod_openssl_load_ca_files(s->ssl_ctx, p, srv))
#endif
return -1;
if (s->ssl_verifyclient) {
@ -2330,6 +2885,9 @@ network_init_ssl (server *srv, plugin_config_socket *s, plugin_data *p)
/* WTH openssl? SSL_CTX_set_client_CA_list() calls set0_CA_list(),
* but there is no set1_CA_list() to simply up the reference count
* (without needing to duplicate the list) */
/* WTH wolfssl? wolfSSL_dup_CA_list() is a stub which returns NULL
* and so DN names in cert request are not set here.
* (A patch has been submitted to WolfSSL to correct this)*/
STACK_OF(X509_NAME) * const cert_names = s->ssl_ca_dn_file
? s->ssl_ca_dn_file
: s->ssl_ca_file->names;
@ -2338,6 +2896,15 @@ network_init_ssl (server *srv, plugin_config_socket *s, plugin_data *p)
if (s->ssl_verifyclient_enforce) {
mode |= SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
}
#ifdef WOLFSSL_VERSION
wolfSSL_CTX_set_verify(s->ssl_ctx, mode, verify_callback);
wolfSSL_CTX_set_verify_depth(s->ssl_ctx,
s->ssl_verifyclient_depth + 1);
if (!buffer_string_is_empty(s->ssl_ca_crl_file)) {
if (!mod_wolfssl_load_cacrls(s->ssl_ctx,s->ssl_ca_crl_file,srv))
return -1;
}
#else
SSL_CTX_set_verify(s->ssl_ctx, mode, verify_callback);
SSL_CTX_set_verify_depth(s->ssl_ctx, s->ssl_verifyclient_depth + 1);
if (!buffer_string_is_empty(s->ssl_ca_crl_file)) {
@ -2345,8 +2912,14 @@ network_init_ssl (server *srv, plugin_config_socket *s, plugin_data *p)
if (!mod_openssl_load_cacrls(store, s->ssl_ca_crl_file, srv))
return -1;
}
#endif
}
#ifdef WOLFSSL_VERSION
if (1 != mod_wolfssl_CTX_use_certificate_chain_file(
s->ssl_ctx, s->pc->ssl_pemfile->ptr, srv->errh))
return -1;
#else
if (1 != SSL_CTX_use_certificate_chain_file(s->ssl_ctx,
s->pc->ssl_pemfile->ptr)) {
log_error(srv->errh, __FILE__, __LINE__,
@ -2354,8 +2927,18 @@ network_init_ssl (server *srv, plugin_config_socket *s, plugin_data *p)
s->pc->ssl_pemfile->ptr);
return -1;
}
#endif
if (1 != SSL_CTX_use_PrivateKey(s->ssl_ctx, s->pc->ssl_pemfile_pkey)) {
#ifdef WOLFSSL_VERSION
buffer *k = s->pc->ssl_pemfile_pkey;
if (1 != wolfSSL_CTX_use_PrivateKey_buffer(s->ssl_ctx,
(unsigned char *)k->ptr,
(int)buffer_string_length(k),
WOLFSSL_FILETYPE_ASN1))
#else
if (1 != SSL_CTX_use_PrivateKey(s->ssl_ctx, s->pc->ssl_pemfile_pkey))
#endif
{
log_error(srv->errh, __FILE__, __LINE__,
"SSL: %s %s %s", ERR_error_string(ERR_get_error(), NULL),
s->pc->ssl_pemfile->ptr, s->pc->ssl_privkey->ptr);
@ -2385,6 +2968,10 @@ network_init_ssl (server *srv, plugin_config_socket *s, plugin_data *p)
#ifndef OPENSSL_NO_TLSEXT
#ifdef SSL_CLIENT_HELLO_SUCCESS
SSL_CTX_set_client_hello_cb(s->ssl_ctx,mod_openssl_client_hello_cb,srv);
#elif defined(WOLFSSL_VERSION)
wolfSSL_CTX_set_servername_callback(
s->ssl_ctx, network_ssl_servername_callback);
wolfSSL_CTX_set_servername_arg(s->ssl_ctx, srv);
#else
if (!SSL_CTX_set_tlsext_servername_callback(
s->ssl_ctx, network_ssl_servername_callback) ||
@ -2403,11 +2990,15 @@ network_init_ssl (server *srv, plugin_config_socket *s, plugin_data *p)
#if OPENSSL_VERSION_NUMBER >= 0x10100000L \
|| defined(BORINGSSL_API_VERSION) \
|| defined(LIBRESSL_VERSION_NUMBER) \
|| defined(WOLFSSL_VERSION)
|| defined(LIBRESSL_VERSION_NUMBER)
if (!s->ssl_use_sslv3 && !s->ssl_use_sslv2
&& !SSL_CTX_set_min_proto_version(s->ssl_ctx, TLS1_2_VERSION))
return -1;
#elif defined(WOLFSSL_VERSION)
if (!s->ssl_use_sslv3 && !s->ssl_use_sslv2
&& wolfSSL_CTX_SetMinVersion(s->ssl_ctx, WOLFSSL_TLSV1_2)
!= WOLFSSL_SUCCESS)
return -1;
#endif
if (s->ssl_conf_cmd && s->ssl_conf_cmd->used) {
@ -2761,7 +3352,11 @@ SETDEFAULTS_FUNC(mod_openssl_set_defaults)
if (buffer_string_is_empty(cpv->v.b)) break;
if (!mod_openssl_init_once_openssl(srv)) return HANDLER_ERROR;
ssl_ca_file = cpv->v.b;
#ifdef WOLFSSL_VERSION
cpv->v.v = mod_wolfssl_load_cacerts(ssl_ca_file, srv->errh);
#else
cpv->v.v = mod_openssl_load_cacerts(ssl_ca_file, srv->errh);
#endif
if (NULL != cpv->v.v) {
cpv->vtype = T_CONFIG_LOCAL;
ca_store = ((plugin_cacerts *)cpv->v.v)->certs;
@ -2777,7 +3372,12 @@ SETDEFAULTS_FUNC(mod_openssl_set_defaults)
if (buffer_string_is_empty(cpv->v.b)) break;
if (!mod_openssl_init_once_openssl(srv)) return HANDLER_ERROR;
ssl_ca_dn_file = cpv->v.b;
#ifdef WOLFSSL_VERSION
cpv->v.v = mod_wolfssl_load_client_CA_file(ssl_ca_dn_file,
srv->errh);
#else
cpv->v.v = SSL_load_client_CA_file(ssl_ca_dn_file->ptr);
#endif
if (NULL != cpv->v.v) {
cpv->vtype = T_CONFIG_LOCAL;
}
@ -3540,6 +4140,19 @@ https_add_ssl_client_entries (request_st * const r, handler_ctx * const hctx)
}
if (hctx->conf.ssl_verifyclient_export_cert) {
#ifdef WOLFSSL_VERSION
int dersz, pemsz;
const unsigned char *der = wolfSSL_X509_get_der(xs, &dersz);
pemsz = der ? wc_DerToPemEx(der, dersz, NULL, 0, NULL, CERT_TYPE) : 0;
if (pemsz > 0) {
buffer_string_prepare_copy(tb, pemsz);
if (0 == wc_DerToPemEx(der, dersz, (byte *)tb->ptr, pemsz,
NULL, CERT_TYPE))
http_header_env_set(r,
CONST_STR_LEN("SSL_CLIENT_CERT"),
tb->ptr, (uint32_t)pemsz);
}
#else
BIO *bio;
if (NULL != (bio = BIO_new(BIO_s_mem()))) {
PEM_write_bio_X509(bio, xs);
@ -3553,6 +4166,7 @@ https_add_ssl_client_entries (request_st * const r, handler_ctx * const hctx)
CONST_STR_LEN("SSL_CLIENT_CERT"),
CONST_BUF_LEN(tb));
}
#endif
}
X509_free(xs);
}
@ -3572,7 +4186,11 @@ http_cgi_ssl_env (request_st * const r, handler_ctx * const hctx)
char buf[LI_ITOSTRING_LENGTH];
s = SSL_CIPHER_get_name(cipher);
http_header_env_set(r, CONST_STR_LEN("SSL_CIPHER"), s, strlen(s));
#ifdef WOLFSSL_VERSION
usekeysize = wolfSSL_CIPHER_get_bits(cipher, &algkeysize);
#else
usekeysize = SSL_CIPHER_get_bits(cipher, &algkeysize);
#endif
if (0 == algkeysize) algkeysize = usekeysize;
http_header_env_set(r, CONST_STR_LEN("SSL_CIPHER_USEKEYSIZE"),
buf, li_itostrn(buf, sizeof(buf), usekeysize));
@ -3827,10 +4445,23 @@ mod_openssl_ssl_conf_cmd (server *srv, plugin_config_socket *s)
}
if (minb) {
/*(wolfSSL_CTX_SetMinVersion() alt uses enums with different values)*/
int n = mod_openssl_ssl_conf_proto_val(srv, s, minb, 0);
#ifndef WOLFSSL_VERSION
if (!SSL_CTX_set_min_proto_version(s->ssl_ctx, n))
rc = -1;
#else
/*(wolfSSL_CTX_SetMinVersion() alt uses enums with different values)*/
switch (n) {
case SSL3_VERSION: n = WOLFSSL_SSLV3; break;
case TLS1_VERSION: n = WOLFSSL_TLSV1; break;
case TLS1_1_VERSION: n = WOLFSSL_TLSV1_1; break;
case TLS1_2_VERSION: n = WOLFSSL_TLSV1_2; break;
case TLS1_3_VERSION: n = WOLFSSL_TLSV1_3; break;
default: rc = -1; break;
}
if (wolfSSL_CTX_SetMinVersion(s->ssl_ctx, n) != WOLFSSL_SUCCESS)
rc = -1;
#endif
}
if (maxb) {

26
src/mod_secdownload.c
Unescape View File

@ -22,6 +22,8 @@
#include <openssl/hmac.h>
#elif defined(USE_GNUTLS_CRYPTO)
#include <gnutls/crypto.h>
#elif defined(USE_WOLFSSL_CRYPTO)
#include <wolfssl/wolfcrypt/hmac.h>
#endif
#endif
@ -205,6 +207,18 @@ static int secdl_verify_mac(plugin_config *config, const char* protected_path, c
"hmac-sha1: HMAC() failed");
return 0;
}
#elif defined(USE_WOLFSSL_CRYPTO)
Hmac hmac;
if (0 != wc_HmacInit(&hmac, NULL, INVALID_DEVID)
|| wc_HmacSetKey(&hmac, WC_SHA, (const byte *)config->secret->ptr,
(word32)buffer_string_length(config->secret)) < 0
|| wc_HmacUpdate(&hmac, (const byte *)protected_path,
(word32)strlen(protected_path)) < 0
|| wc_HmacFinal(&hmac, (byte *)digest) < 0) {
log_error(errh, __FILE__, __LINE__,
"hmac-sha1: HMAC() failed");
return 0;
}
#elif defined(USE_OPENSSL_CRYPTO)
if (NULL == HMAC(
EVP_sha1(),
@ -258,6 +272,18 @@ static int secdl_verify_mac(plugin_config *config, const char* protected_path, c
"hmac-sha256: HMAC() failed");
return 0;
}
#elif defined(USE_WOLFSSL_CRYPTO)
Hmac hmac;
if (0 != wc_HmacInit(&hmac, NULL, INVALID_DEVID)
|| wc_HmacSetKey(&hmac, WC_SHA256, (const byte *)config->secret->ptr,
(word32)buffer_string_length(config->secret)) < 0
|| wc_HmacUpdate(&hmac, (const byte *)protected_path,
(word32)strlen(protected_path)) < 0
|| wc_HmacFinal(&hmac, (byte *)digest) < 0) {
log_error(errh, __FILE__, __LINE__,
"hmac-sha256: HMAC() failed");
return 0;
}
#elif defined(USE_OPENSSL_CRYPTO)
if (NULL == HMAC(
EVP_sha256(),

64
src/rand.c
Unescape View File

@ -23,6 +23,7 @@
#include "sys-crypto.h" /* USE_LIB_CRYPTO */
#ifdef USE_NETTLE_CRYPTO
#undef USE_MBEDTLS_CRYPTO
#undef USE_WOLFSSL_CRYPTO
#undef USE_OPENSSL_CRYPTO
#undef USE_GNUTLS_CRYPTO
#include <nettle/knuth-lfib.h>
@ -30,11 +31,17 @@
#include <nettle/yarrow.h>
#endif
#ifdef USE_MBEDTLS_CRYPTO
#undef USE_WOLFSSL_CRYPTO
#undef USE_OPENSSL_CRYPTO
#undef USE_GNUTLS_CRYPTO
#include <mbedtls/ctr_drbg.h>
#include <mbedtls/entropy.h>
#endif
#ifdef USE_WOLFSSL_CRYPTO
#undef USE_OPENSSL_CRYPTO
#undef USE_GNUTLS_CRYPTO
#include <wolfssl/wolfcrypt/random.h>
#endif
#ifdef USE_OPENSSL_CRYPTO
#undef USE_GNUTLS_CRYPTO
#include <openssl/opensslv.h> /* OPENSSL_VERSION_NUMBER */
@ -159,6 +166,9 @@ static mbedtls_ctr_drbg_context ctr_drbg;
#endif
#endif
#endif
#ifdef USE_WOLFSSL_CRYPTO
static WC_RNG wolf_globalRNG;
#endif
#ifdef USE_NETTLE_CRYPTO
static struct knuth_lfib_ctx knuth_lfib_ctx;
static struct arcfour_ctx arcfour_ctx;
@ -193,6 +203,7 @@ li_arcfour_init_random_key_hashed(struct arcfour_ctx *ctx)
}
#endif
__attribute_cold__
static void li_rand_init (void)
{
/* (intended to be called at init and after fork() in order to re-seed PRNG
@ -229,6 +240,13 @@ static void li_rand_init (void)
nettle_yarrow256_init(&yarrow256_ctx, 0, NULL);
li_arcfour_init_random_key_hashed(&arcfour_ctx);
#endif
#ifdef USE_WOLFSSL_CRYPTO
/* xsubi[] is small, so use wc_InitRng() instead of wc_InitRngNonce()
* to get default behavior of a larger internally-generated nonce */
if (0 != wolfCrypt_Init() || 0 != wc_InitRng(&wolf_globalRNG))
log_failed_assert(__FILE__, __LINE__,
"wolfCrypt_Init or wc_InitRng() failed");
#endif
#ifdef USE_OPENSSL_CRYPTO
RAND_poll();
RAND_seed(xsubi, (int)sizeof(xsubi));
@ -254,6 +272,28 @@ void li_rand_reseed (void)
gnutls_rnd_refresh();
return;
#endif
#ifdef USE_WOLFSSL_CRYPTO
if (li_rand_inited) {
#if 0 /*(wc_RNG_DRBG_Reseed() is not part of public API)*/
/*(XXX: might use stack to procure larger seed;
* xsubi[] is short (6 bytes)) */
if (1 == li_rand_device_bytes((unsigned char *)xsubi,
(int)sizeof(xsubi))) {
if (0 != wc_RNG_DRBG_Reseed(&wolf_globalRNG,
(const byte *)xsubi,
(word32)sizeof(xsubi)))
/*(not expecting this to fail)*/
log_failed_assert(__FILE__, __LINE__,
"wc_RNG_DRBG_Reseed() failed");
}
#else
wc_FreeRng(&wolf_globalRNG);
if (0 != wc_InitRng(&wolf_globalRNG))
log_failed_assert(__FILE__, __LINE__, "wc_InitRng() failed");
#endif
return;
}
#endif
#ifdef USE_MBEDTLS_CRYPTO
if (li_rand_inited) {
#ifdef MBEDTLS_ENTROPY_C
@ -282,6 +322,12 @@ int li_rand_pseudo (void)
if (-1 != RAND_pseudo_bytes((unsigned char *)&i, sizeof(i))) return i;
#endif
#endif
#ifdef USE_WOLFSSL_CRYPTO
/* RAND_pseudo_bytes() in WolfSSL is equivalent to RAND_bytes() */
int i;
if (0 == wc_RNG_GenerateBlock(&wolf_globalRNG,(byte *)&i,(word32)sizeof(i)))
return i;
#endif
#ifdef USE_NETTLE_CRYPTO
int i = (int)nettle_knuth_lfib_get(&knuth_lfib_ctx);
nettle_arcfour_crypt(&arcfour_ctx, sizeof(i), (uint8_t *)&i, (uint8_t *)&i);
@ -314,10 +360,16 @@ void li_rand_pseudo_bytes (unsigned char *buf, int num)
#ifdef USE_GNUTLS_CRYPTO
if (0 == gnutls_rnd(GNUTLS_RND_NONCE, buf, (size_t)num)) return;
#endif
if (!li_rand_inited) li_rand_init();
#ifdef USE_MBEDTLS_CRYPTO
#ifdef MBEDTLS_CTR_DRBG_C
if (0 == mbedtls_ctr_drbg_random(&ctr_drbg, buf, (size_t)num)) return;
#endif
#endif
#ifdef USE_WOLFSSL_CRYPTO
/* RAND_pseudo_bytes() in WolfSSL is equivalent to RAND_bytes() */
if (0 == wc_RNG_GenerateBlock(&wolf_globalRNG, (byte *)buf, (word32)num))
return;
#endif
for (int i = 0; i < num; ++i)
buf[i] = li_rand_pseudo() & 0xFF;
@ -349,6 +401,11 @@ int li_rand_bytes (unsigned char *buf, int num)
return rc;
}
#endif
#ifdef USE_WOLFSSL_CRYPTO
if (0 == wc_RNG_GenerateBlock(&wolf_globalRNG, (byte *)buf, (word32)num)) {
return 1;
}
#endif
#ifdef USE_MBEDTLS_CRYPTO
#ifdef MBEDTLS_ENTROPY_C
/*(each call <= MBEDTLS_ENTROPY_BLOCK_SIZE; could implement loop here)*/
@ -371,6 +428,13 @@ int li_rand_bytes (unsigned char *buf, int num)
void li_rand_cleanup (void)
{
#ifdef USE_WOLFSSL_CRYPTO
if (li_rand_inited) {
wc_FreeRng(&wolf_globalRNG);
wolfCrypt_Cleanup();
li_rand_inited = 0;
}
#endif
#ifdef USE_OPENSSL_CRYPTO
#if OPENSSL_VERSION_NUMBER < 0x10100000L
RAND_cleanup();

8
src/server.c
Unescape View File

@ -74,7 +74,8 @@ static const buffer default_server_tag = { CONST_STR_LEN(PACKAGE_DESC), 0 };
#if defined(USE_OPENSSL_CRYPTO) \
|| defined(USE_MBEDTLS_CRYPTO) \
|| defined(USE_NSS_CRYPTO) \
|| defined(USE_GNUTLS_CRYPTO)
|| defined(USE_GNUTLS_CRYPTO) \
|| defined(USE_WOLFTLS_CRYPTO)
#define TEXT_SSL " (ssl)"
#else
#define TEXT_SSL
@ -452,6 +453,11 @@ static void show_features (void) {
#else
"\t- GnuTLS support\n"
#endif
#ifdef USE_WOLFSSL_CRYPTO
"\t+ WolfSSL support\n"
#else
"\t- WolfSSL support\n"
#endif
#ifdef USE_NETTLE_CRYPTO
"\t+ Nettle support\n"
#else

109
src/sys-crypto-md.h
Unescape View File

@ -144,6 +144,115 @@ SHA256_Update(SHA256_CTX *ctx, const void *data, size_t length)
}
#endif
#elif defined(USE_WOLFSSL_CRYPTO)
/* WolfSSL compatibility API for OpenSSL unnecessarily bounces through an extra
* layer of indirection. However, to avoid conflicting typedefs when includers
* also include headers from the WolfSSL compatibility API for OpenSSL, we
* include those headers here, as well, and use the compatibility API typedefs.
* (undef of OPENSSL_EXTRA and NO_OLD_WC_NAMES not sufficient, and not friendly
* to do in a header when others might rely on them) */
#ifndef NO_MD4
#include <wolfssl/wolfcrypt/md4.h>
#include <wolfssl/openssl/md4.h>
#undef MD4_Init
#undef MD4_Final
#undef MD4_Update
#define USE_LIB_CRYPTO_MD4
/*typedef Md4 MD4_CTX;*/
static inline int
MD4_Init(MD4_CTX *ctx)
{
return (0 == wc_InitMd4((Md4 *)ctx));
}
static inline int
MD4_Final(unsigned char *digest, MD4_CTX *ctx)
{
return (0 == wc_Md4Final((Md4 *)ctx, digest));
}
static inline void
MD4_Update(MD4_CTX *ctx, const void *data, size_t length)
{
wc_Md4Update((Md4 *)ctx, data, length);
}
#endif
#ifndef NO_MD5
#include <wolfssl/wolfcrypt/md5.h>
#include <wolfssl/openssl/md5.h>
#undef MD5_Init
#undef MD5_Final
#undef MD5_Update
#define USE_LIB_CRYPTO_MD5
/*typedef wc_Md5 MD5_CTX;*/
static inline int
MD5_Init(MD5_CTX *ctx)
{
return (0 == wc_InitMd5((wc_Md5 *)ctx));
}
static inline int
MD5_Final(unsigned char *digest, MD5_CTX *ctx)
{
return (0 == wc_Md5Final((wc_Md5 *)ctx, digest));
}
static inline void
MD5_Update(MD5_CTX *ctx, const void *data, size_t length)
{
wc_Md5Update((wc_Md5 *)ctx, data, length);