}
/* }}} */
- /* SSL verification functions */
-
- #define GET_VER_OPT(name) (stream->context && SUCCESS == php_stream_context_get_option(stream->context, "ssl", name, &val))
- #define GET_VER_OPT_STRING(name, str) if (GET_VER_OPT(name)) { convert_to_string_ex(val); str = Z_STRVAL_PP(val); }
-
- static int verify_callback(int preverify_ok, X509_STORE_CTX *ctx) /* {{{ */
- {
- php_stream *stream;
- SSL *ssl;
- int err, depth, ret;
- zval **val;
-
- ret = preverify_ok;
-
- /* determine the status for the current cert */
- err = X509_STORE_CTX_get_error(ctx);
- depth = X509_STORE_CTX_get_error_depth(ctx);
-
- /* conjure the stream & context to use */
- ssl = X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
- stream = (php_stream*)SSL_get_ex_data(ssl, ssl_stream_data_index);
-
- /* if allow_self_signed is set, make sure that verification succeeds */
- if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT && GET_VER_OPT("allow_self_signed") && zval_is_true(*val)) {
- ret = 1;
- }
-
- /* check the depth */
- if (GET_VER_OPT("verify_depth")) {
- convert_to_long_ex(val);
-
- if (depth > Z_LVAL_PP(val)) {
- ret = 0;
- X509_STORE_CTX_set_error(ctx, X509_V_ERR_CERT_CHAIN_TOO_LONG);
- }
- }
-
- return ret;
-
- }
- /* }}} */
-
- static zend_bool matches_wildcard_name(const char *subjectname, const char *certname)
- {
- char *wildcard;
- int prefix_len, suffix_len, subject_len;
-
- if (strcasecmp(subjectname, certname) == 0) {
- return 1;
- }
-
- if (!(wildcard = strchr(certname, '*'))) {
- return 0;
- }
-
- // 1) prefix, if not empty, must match subject
- prefix_len = wildcard - certname;
- if (prefix_len && strncasecmp(subjectname, certname, prefix_len) != 0) {
- return 0;
- }
-
- suffix_len = strlen(wildcard + 1);
- subject_len = strlen(subjectname);
- if (suffix_len <= subject_len) {
- /* 2) suffix must match
- * 3) no . between prefix and suffix
- **/
- return strcasecmp(wildcard + 1, subjectname + subject_len - suffix_len) == 0 &&
- memchr(subjectname + prefix_len, '.', subject_len - suffix_len - prefix_len) == NULL;
- }
-
- return 0;
- }
-
- static zend_bool matches_san_list(X509 *peer, const char *subject_name TSRMLS_DC)
- {
- int i, san_name_len;
- zend_bool is_match = 0;
- unsigned char *cert_name;
-
- GENERAL_NAMES *alt_names = X509_get_ext_d2i(peer, NID_subject_alt_name, 0, 0);
- int alt_name_count = sk_GENERAL_NAME_num(alt_names);
-
- for (i = 0; i < alt_name_count; i++) {
- GENERAL_NAME *san = sk_GENERAL_NAME_value(alt_names, i);
- if (san->type != GEN_DNS) {
- /* we only care about DNS names */
- continue;
- }
-
- san_name_len = ASN1_STRING_length(san->d.dNSName);
- ASN1_STRING_to_UTF8(&cert_name, san->d.dNSName);
-
- /* prevent null byte poisoning */
- if (san_name_len != strlen((const char*)cert_name)) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Peer SAN entry is malformed");
- } else {
- is_match = strcasecmp(subject_name, (const char*)cert_name) == 0;
- }
-
- OPENSSL_free(cert_name);
-
- if (is_match) {
- break;
- }
- }
-
- return is_match;
- }
-
- static zend_bool matches_common_name(X509 *peer, const char *subject_name TSRMLS_DC)
- {
- char buf[1024];
- X509_NAME *cert_name;
- zend_bool is_match = 0;
- int cert_name_len;
-
- cert_name = X509_get_subject_name(peer);
- cert_name_len = X509_NAME_get_text_by_NID(cert_name, NID_commonName, buf, sizeof(buf));
-
- if (cert_name_len == -1) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to locate peer certificate CN");
- } else if (cert_name_len != strlen(buf)) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Peer certificate CN=`%.*s' is malformed", cert_name_len, buf);
- } else if (matches_wildcard_name(subject_name, buf)) {
- is_match = 1;
- } else {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Peer certificate CN=`%.*s' did not match expected CN=`%s'", cert_name_len, buf, subject_name);
- }
-
- return is_match;
- }
-
- int php_openssl_apply_verification_policy(SSL *ssl, X509 *peer, php_stream *stream TSRMLS_DC) /* {{{ */
- {
- zval **val = NULL;
- char *peer_name = NULL;
- int err;
- zend_bool must_verify_peer;
- zend_bool must_verify_peer_name;
- zend_bool must_verify_fingerprint;
- zend_bool has_cnmatch_ctx_opt;
- php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract;
-
- must_verify_peer = GET_VER_OPT("verify_peer")
- ? zend_is_true(*val TSRMLS_CC)
- : sslsock->is_client;
-
- has_cnmatch_ctx_opt = GET_VER_OPT("CN_match");
- must_verify_peer_name = (has_cnmatch_ctx_opt || GET_VER_OPT("verify_peer_name"))
- ? zend_is_true(*val TSRMLS_CC)
- : sslsock->is_client;
-
- must_verify_fingerprint = (GET_VER_OPT("peer_fingerprint") && zend_is_true(*val TSRMLS_CC));
-
- if ((must_verify_peer || must_verify_peer_name || must_verify_fingerprint) && peer == NULL) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not get peer certificate");
- return FAILURE;
- }
-
- /* Verify the peer against using CA file/path settings */
- if (must_verify_peer) {
- err = SSL_get_verify_result(ssl);
- switch (err) {
- case X509_V_OK:
- /* fine */
- break;
- case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
- if (GET_VER_OPT("allow_self_signed") && zval_is_true(*val)) {
- /* allowed */
- break;
- }
- /* not allowed, so fall through */
- default:
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "Could not verify peer: code:%d %s",
- err,
- X509_verify_cert_error_string(err)
- );
- return FAILURE;
- }
- }
-
- /* If a peer_fingerprint match is required this trumps peer and peer_name verification */
- if (must_verify_fingerprint) {
- if (Z_TYPE_PP(val) == IS_STRING || Z_TYPE_PP(val) == IS_ARRAY) {
- if (!php_x509_fingerprint_match(peer, *val TSRMLS_CC)) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "Peer fingerprint doesn't match"
- );
- return FAILURE;
- }
- } else {
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "Expected peer fingerprint must be a string or an array"
- );
- }
- }
-
- /* verify the host name presented in the peer certificate */
- if (must_verify_peer_name) {
- GET_VER_OPT_STRING("peer_name", peer_name);
-
- if (has_cnmatch_ctx_opt) {
- GET_VER_OPT_STRING("CN_match", peer_name);
- php_error(E_DEPRECATED,
- "the 'CN_match' SSL context option is deprecated in favor of 'peer_name'"
- );
- }
- /* If no peer name was specified we use the autodetected url name in client environments */
- if (peer_name == NULL && sslsock->is_client) {
- peer_name = sslsock->url_name;
- }
-
- if (peer_name) {
- if (matches_san_list(peer, peer_name TSRMLS_CC)) {
- return SUCCESS;
- } else if (matches_common_name(peer, peer_name TSRMLS_CC)) {
- return SUCCESS;
- } else {
- return FAILURE;
- }
- } else {
- return FAILURE;
- }
- }
-
- return SUCCESS;
- }
- /* }}} */
-
- static int passwd_callback(char *buf, int num, int verify, void *data) /* {{{ */
- {
- php_stream *stream = (php_stream *)data;
- zval **val = NULL;
- char *passphrase = NULL;
- /* TODO: could expand this to make a callback into PHP user-space */
-
- GET_VER_OPT_STRING("passphrase", passphrase);
-
- if (passphrase) {
- if (Z_STRLEN_PP(val) < num - 1) {
- memcpy(buf, Z_STRVAL_PP(val), Z_STRLEN_PP(val)+1);
- return Z_STRLEN_PP(val);
- }
- }
- return 0;
- }
- /* }}} */
-
- #if defined(PHP_WIN32) && OPENSSL_VERSION_NUMBER >= 0x00907000L
- #define RETURN_CERT_VERIFY_FAILURE(code) X509_STORE_CTX_set_error(x509_store_ctx, code); return 0;
- static int win_cert_verify_callback(X509_STORE_CTX *x509_store_ctx, void *arg) /* {{{ */
- {
- PCCERT_CONTEXT cert_ctx = NULL;
- PCCERT_CHAIN_CONTEXT cert_chain_ctx = NULL;
-
- php_stream *stream;
- php_openssl_netstream_data_t *sslsock;
- zval **val;
- zend_bool is_self_signed = 0;
-
- TSRMLS_FETCH();
-
- stream = (php_stream*)arg;
- sslsock = (php_openssl_netstream_data_t*)stream->abstract;
-
- { /* First convert the x509 struct back to a DER encoded buffer and let Windows decode it into a form it can work with */
- unsigned char *der_buf = NULL;
- int der_len;
-
- der_len = i2d_X509(x509_store_ctx->cert, &der_buf);
- if (der_len < 0) {
- unsigned long err_code, e;
- char err_buf[512];
-
- while ((e = ERR_get_error()) != 0) {
- err_code = e;
- }
-
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error encoding X509 certificate: %d: %s", err_code, ERR_error_string(err_code, err_buf));
- RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
- }
-
- cert_ctx = CertCreateCertificateContext(X509_ASN_ENCODING, der_buf, der_len);
- OPENSSL_free(der_buf);
-
- if (cert_ctx == NULL) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error creating certificate context: %s", php_win_err());
- RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
- }
- }
-
- { /* Next fetch the relevant cert chain from the store */
- CERT_ENHKEY_USAGE enhkey_usage = {0};
- CERT_USAGE_MATCH cert_usage = {0};
- CERT_CHAIN_PARA chain_params = {sizeof(CERT_CHAIN_PARA)};
- LPSTR usages[] = {szOID_PKIX_KP_SERVER_AUTH, szOID_SERVER_GATED_CRYPTO, szOID_SGC_NETSCAPE};
- DWORD chain_flags = 0;
- unsigned long verify_depth = PHP_OPENSSL_DEFAULT_STREAM_VERIFY_DEPTH;
- unsigned int i;
-
- enhkey_usage.cUsageIdentifier = 3;
- enhkey_usage.rgpszUsageIdentifier = usages;
- cert_usage.dwType = USAGE_MATCH_TYPE_OR;
- cert_usage.Usage = enhkey_usage;
- chain_params.RequestedUsage = cert_usage;
- chain_flags = CERT_CHAIN_CACHE_END_CERT | CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT;
-
- if (!CertGetCertificateChain(NULL, cert_ctx, NULL, NULL, &chain_params, chain_flags, NULL, &cert_chain_ctx)) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error getting certificate chain: %s", php_win_err());
- CertFreeCertificateContext(cert_ctx);
- RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
- }
-
- /* check if the cert is self-signed */
- if (cert_chain_ctx->cChain > 0 && cert_chain_ctx->rgpChain[0]->cElement > 0
- && (cert_chain_ctx->rgpChain[0]->rgpElement[0]->TrustStatus.dwInfoStatus & CERT_TRUST_IS_SELF_SIGNED) != 0) {
- is_self_signed = 1;
- }
-
- /* check the depth */
- if (GET_VER_OPT("verify_depth")) {
- convert_to_long_ex(val);
- verify_depth = (unsigned long)Z_LVAL_PP(val);
- }
-
- for (i = 0; i < cert_chain_ctx->cChain; i++) {
- if (cert_chain_ctx->rgpChain[i]->cElement > verify_depth) {
- CertFreeCertificateChain(cert_chain_ctx);
- CertFreeCertificateContext(cert_ctx);
- RETURN_CERT_VERIFY_FAILURE(X509_V_ERR_CERT_CHAIN_TOO_LONG);
- }
- }
- }
-
- { /* Then verify it against a policy */
- SSL_EXTRA_CERT_CHAIN_POLICY_PARA ssl_policy_params = {sizeof(SSL_EXTRA_CERT_CHAIN_POLICY_PARA)};
- CERT_CHAIN_POLICY_PARA chain_policy_params = {sizeof(CERT_CHAIN_POLICY_PARA)};
- CERT_CHAIN_POLICY_STATUS chain_policy_status = {sizeof(CERT_CHAIN_POLICY_STATUS)};
- LPWSTR server_name = NULL;
- BOOL verify_result;
-
- { /* This looks ridiculous and it is - but we validate the name ourselves using the peer_name
- ctx option, so just use the CN from the cert here */
-
- X509_NAME *cert_name;
- unsigned char *cert_name_utf8;
- int index, cert_name_utf8_len;
- DWORD num_wchars;
-
- cert_name = X509_get_subject_name(x509_store_ctx->cert);
- index = X509_NAME_get_index_by_NID(cert_name, NID_commonName, -1);
- if (index < 0) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to locate certificate CN");
- CertFreeCertificateChain(cert_chain_ctx);
- CertFreeCertificateContext(cert_ctx);
- RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
- }
-
- cert_name_utf8_len = PHP_X509_NAME_ENTRY_TO_UTF8(cert_name, index, cert_name_utf8);
-
- num_wchars = MultiByteToWideChar(CP_UTF8, 0, (char*)cert_name_utf8, -1, NULL, 0);
- if (num_wchars == 0) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to convert %s to wide character string", cert_name_utf8);
- OPENSSL_free(cert_name_utf8);
- CertFreeCertificateChain(cert_chain_ctx);
- CertFreeCertificateContext(cert_ctx);
- RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
- }
-
- server_name = emalloc((num_wchars * sizeof(WCHAR)) + sizeof(WCHAR));
-
- num_wchars = MultiByteToWideChar(CP_UTF8, 0, (char*)cert_name_utf8, -1, server_name, num_wchars);
- if (num_wchars == 0) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to convert %s to wide character string", cert_name_utf8);
- efree(server_name);
- OPENSSL_free(cert_name_utf8);
- CertFreeCertificateChain(cert_chain_ctx);
- CertFreeCertificateContext(cert_ctx);
- RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
- }
-
- OPENSSL_free(cert_name_utf8);
- }
-
- ssl_policy_params.dwAuthType = (sslsock->is_client) ? AUTHTYPE_SERVER : AUTHTYPE_CLIENT;
- ssl_policy_params.pwszServerName = server_name;
- chain_policy_params.pvExtraPolicyPara = &ssl_policy_params;
-
- verify_result = CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL, cert_chain_ctx, &chain_policy_params, &chain_policy_status);
-
- efree(server_name);
- CertFreeCertificateChain(cert_chain_ctx);
- CertFreeCertificateContext(cert_ctx);
-
- if (!verify_result) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error verifying certificate chain policy: %s", php_win_err());
- RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
- }
-
- if (chain_policy_status.dwError != 0) {
- /* The chain does not match the policy */
- if (is_self_signed && chain_policy_status.dwError == CERT_E_UNTRUSTEDROOT
- && GET_VER_OPT("allow_self_signed") && zval_is_true(*val)) {
- /* allow self-signed certs */
- X509_STORE_CTX_set_error(x509_store_ctx, X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT);
- } else {
- RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
- }
- }
- }
-
- return 1;
- }
- /* }}} */
- #endif
-
- static long load_stream_cafile(X509_STORE *cert_store, const char *cafile TSRMLS_DC) /* {{{ */
- {
- php_stream *stream;
- X509 *cert;
- BIO *buffer;
- int buffer_active = 0;
- char *line;
- size_t line_len;
- long certs_added = 0;
-
- stream = php_stream_open_wrapper(cafile, "rb", 0, NULL);
-
- if (stream == NULL) {
- php_error(E_WARNING, "failed loading cafile stream: `%s'", cafile);
- return 0;
- } else if (stream->wrapper->is_url) {
- php_stream_close(stream);
- php_error(E_WARNING, "remote cafile streams are disabled for security purposes");
- return 0;
- }
-
- cert_start: {
- line = php_stream_get_line(stream, NULL, 0, &line_len);
- if (line == NULL) {
- goto stream_complete;
- } else if (!strcmp(line, "-----BEGIN CERTIFICATE-----\n") ||
- !strcmp(line, "-----BEGIN CERTIFICATE-----\r\n")
- ) {
- buffer = BIO_new(BIO_s_mem());
- buffer_active = 1;
- goto cert_line;
- } else {
- efree(line);
- goto cert_start;
- }
- }
-
- cert_line: {
- BIO_puts(buffer, line);
- efree(line);
- line = php_stream_get_line(stream, NULL, 0, &line_len);
- if (line == NULL) {
- goto stream_complete;
- } else if (!strcmp(line, "-----END CERTIFICATE-----") ||
- !strcmp(line, "-----END CERTIFICATE-----\n") ||
- !strcmp(line, "-----END CERTIFICATE-----\r\n")
- ) {
- goto add_cert;
- } else {
- goto cert_line;
- }
- }
-
- add_cert: {
- BIO_puts(buffer, line);
- efree(line);
- cert = PEM_read_bio_X509(buffer, NULL, 0, NULL);
- BIO_free(buffer);
- buffer_active = 0;
- if (cert && X509_STORE_add_cert(cert_store, cert)) {
- ++certs_added;
- }
- goto cert_start;
- }
-
- stream_complete: {
- php_stream_close(stream);
- if (buffer_active == 1) {
- BIO_free(buffer);
- }
- }
-
- if (certs_added == 0) {
- php_error(E_WARNING, "no valid certs found cafile stream: `%s'", cafile);
- }
-
- return certs_added;
- }
- /* }}} */
-
- static void enable_peer_verify_callback(SSL_CTX *ctx, php_stream *stream) /* {{{ */
- {
- zval **val = NULL;
-
- /* turn on verification callback */
- SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, verify_callback);
-
- if (GET_VER_OPT("verify_depth")) {
- convert_to_long_ex(val);
- SSL_CTX_set_verify_depth(ctx, Z_LVAL_PP(val));
- } else {
- SSL_CTX_set_verify_depth(ctx, PHP_OPENSSL_DEFAULT_STREAM_VERIFY_DEPTH);
- }
- }
- /* }}} */
-
- static int enable_peer_verification(SSL_CTX *ctx, php_stream *stream TSRMLS_DC) /* {{{ */
- {
- zval **val = NULL;
- char *cafile = NULL;
- char *capath = NULL;
-
- GET_VER_OPT_STRING("cafile", cafile);
- GET_VER_OPT_STRING("capath", capath);
-
- if (!cafile) {
- cafile = zend_ini_string("openssl.cafile", sizeof("openssl.cafile"), 0);
- cafile = strlen(cafile) ? cafile : NULL;
- }
-
- if (!capath) {
- capath = zend_ini_string("openssl.capath", sizeof("openssl.capath"), 0);
- capath = strlen(capath) ? capath : NULL;
- }
-
- if (cafile || capath) {
- if (!SSL_CTX_load_verify_locations(ctx, cafile, capath)) {
- if (cafile && !load_stream_cafile(SSL_CTX_get_cert_store(ctx), cafile TSRMLS_CC)) {
- return 0;
- }
- }
-
- enable_peer_verify_callback(ctx, stream);
- } else {
- #if defined(PHP_WIN32) && OPENSSL_VERSION_NUMBER >= 0x00907000L
- SSL_CTX_set_cert_verify_callback(ctx, win_cert_verify_callback, (void *)stream);
- SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
- #else
- php_openssl_netstream_data_t *sslsock;
- sslsock = (php_openssl_netstream_data_t*)stream->abstract;
-
- if (sslsock->is_client && !SSL_CTX_set_default_verify_paths(ctx)) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "Unable to set default verify locations and no CA settings specified");
- return 0;
- }
-
- enable_peer_verify_callback(ctx, stream);
- #endif
- }
-
- return 1;
- }
- /* }}} */
-
- static int disable_peer_verification(SSL_CTX *ctx, php_stream *stream TSRMLS_DC) /* {{{ */
- {
- SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, NULL);
-
- return 1;
- }
- /* }}} */
-
- SSL *php_SSL_new_from_context(SSL_CTX *ctx, php_stream *stream TSRMLS_DC) /* {{{ */
- {
- zval **val = NULL;
- char *certfile = NULL;
- char *cipherlist = NULL;
- int ok = 1;
- SSL *ssl;
-
- ERR_clear_error();
-
- /* look at context options in the stream and set appropriate verification flags */
- if (GET_VER_OPT("verify_peer") && !zval_is_true(*val)) {
- ok = disable_peer_verification(ctx, stream TSRMLS_CC);
- } else {
- ok = enable_peer_verification(ctx, stream TSRMLS_CC);
- }
-
- if (!ok) {
- return NULL;
- }
-
- /* callback for the passphrase (for localcert) */
- if (GET_VER_OPT("passphrase")) {
- SSL_CTX_set_default_passwd_cb_userdata(ctx, stream);
- SSL_CTX_set_default_passwd_cb(ctx, passwd_callback);
- }
-
- GET_VER_OPT_STRING("ciphers", cipherlist);
- if (!cipherlist) {
- cipherlist = PHP_OPENSSL_DEFAULT_STREAM_CIPHERS;
- }
- if (SSL_CTX_set_cipher_list(ctx, cipherlist) != 1) {
- return NULL;
- }
-
- GET_VER_OPT_STRING("local_cert", certfile);
- if (certfile) {
- char resolved_path_buff[MAXPATHLEN];
- const char * private_key = NULL;
-
- if (VCWD_REALPATH(certfile, resolved_path_buff)) {
- /* a certificate to use for authentication */
- if (SSL_CTX_use_certificate_chain_file(ctx, resolved_path_buff) != 1) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to set local cert chain file `%s'; Check that your cafile/capath settings include details of your certificate and its issuer", certfile);
- return NULL;
- }
- GET_VER_OPT_STRING("local_pk", private_key);
-
- if (private_key) {
- char resolved_path_buff_pk[MAXPATHLEN];
- if (VCWD_REALPATH(private_key, resolved_path_buff_pk)) {
- if (SSL_CTX_use_PrivateKey_file(ctx, resolved_path_buff_pk, SSL_FILETYPE_PEM) != 1) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to set private key file `%s'", resolved_path_buff_pk);
- return NULL;
- }
- }
- } else {
- if (SSL_CTX_use_PrivateKey_file(ctx, resolved_path_buff, SSL_FILETYPE_PEM) != 1) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to set private key file `%s'", resolved_path_buff);
- return NULL;
- }
- }
-
- #if OPENSSL_VERSION_NUMBER < 0x10001001L
- do {
- /* Unnecessary as of OpenSSLv1.0.1 (will segfault if used with >= 10001001 ) */
- X509 *cert = NULL;
- EVP_PKEY *key = NULL;
- SSL *tmpssl = SSL_new(ctx);
- cert = SSL_get_certificate(tmpssl);
-
- if (cert) {
- key = X509_get_pubkey(cert);
- EVP_PKEY_copy_parameters(key, SSL_get_privatekey(tmpssl));
- EVP_PKEY_free(key);
- }
- SSL_free(tmpssl);
- } while (0);
- #endif
- if (!SSL_CTX_check_private_key(ctx)) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "Private key does not match certificate!");
- }
- }
- }
-
- ssl = SSL_new(ctx);
-
- if (ssl) {
- /* map SSL => stream */
- SSL_set_ex_data(ssl, ssl_stream_data_index, stream);
- }
--
- return ssl;
- }
- /* }}} */
--
static void openssl_add_method_or_alias(const OBJ_NAME *name, void *arg) /* {{{ */
{
add_next_index_string((zval*)arg, (char*)name->name, 1);
}
return retry;
}
+ /* }}} */
+
+ static int verify_callback(int preverify_ok, X509_STORE_CTX *ctx) /* {{{ */
+ {
+ php_stream *stream;
+ SSL *ssl;
+ int err, depth, ret;
+ zval **val;
+ unsigned long allowed_depth = OPENSSL_DEFAULT_STREAM_VERIFY_DEPTH;
+
++ TSRMLS_FETCH();
++
+ ret = preverify_ok;
+
+ /* determine the status for the current cert */
+ err = X509_STORE_CTX_get_error(ctx);
+ depth = X509_STORE_CTX_get_error_depth(ctx);
+ /* conjure the stream & context to use */
+ ssl = X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
+ stream = (php_stream*)SSL_get_ex_data(ssl, php_openssl_get_ssl_stream_data_index());
- static size_t php_openssl_sockop_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
+ /* if allow_self_signed is set, make sure that verification succeeds */
+ if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT &&
+ GET_VER_OPT("allow_self_signed") &&
- zend_is_true(*val)
++ zend_is_true(*val TSRMLS_CC)
+ ) {
+ ret = 1;
+ }
+
+ /* check the depth */
+ GET_VER_OPT_LONG("verify_depth", allowed_depth);
+ if ((unsigned long)depth > allowed_depth) {
+ ret = 0;
+ X509_STORE_CTX_set_error(ctx, X509_V_ERR_CERT_CHAIN_TOO_LONG);
+ }
+
+ return ret;
+ }
+ /* }}} */
+
+ static zend_bool matches_wildcard_name(const char *subjectname, const char *certname) /* {{{ */
{
- php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract;
- int didwrite;
-
- if (sslsock->ssl_active) {
- int retry = 1;
+ char *wildcard = NULL;
+ int prefix_len, suffix_len, subject_len;
- do {
- didwrite = SSL_write(sslsock->ssl_handle, buf, count);
+ if (strcasecmp(subjectname, certname) == 0) {
+ return 1;
+ }
- if (didwrite <= 0) {
- retry = handle_ssl_error(stream, didwrite, 0 TSRMLS_CC);
- } else {
- break;
- }
- } while(retry);
+ if (!(wildcard = strchr(certname, '*'))) {
+ return 0;
+ }
- if (didwrite > 0) {
- php_stream_notify_progress_increment(stream->context, didwrite, 0);
- }
- } else {
- didwrite = php_stream_socket_ops.write(stream, buf, count TSRMLS_CC);
+ // 1) prefix, if not empty, must match subject
+ prefix_len = wildcard - certname;
+ if (prefix_len && strncasecmp(subjectname, certname, prefix_len) != 0) {
+ return 0;
}
- if (didwrite < 0) {
- didwrite = 0;
+ suffix_len = strlen(wildcard + 1);
+ subject_len = strlen(subjectname);
+ if (suffix_len <= subject_len) {
+ /* 2) suffix must match
+ * 3) no . between prefix and suffix
+ **/
+ return strcasecmp(wildcard + 1, subjectname + subject_len - suffix_len) == 0 &&
+ memchr(subjectname + prefix_len, '.', subject_len - suffix_len - prefix_len) == NULL;
}
-
- return didwrite;
+
+ return 0;
}
+ /* }}} */
- static size_t php_openssl_sockop_read(php_stream *stream, char *buf, size_t count TSRMLS_DC)
+ static zend_bool matches_san_list(X509 *peer, const char *subject_name TSRMLS_DC) /* {{{ */
{
- php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract;
- int nr_bytes = 0;
+ int i, san_name_len;
+ zend_bool is_match = 0;
+ unsigned char *cert_name = NULL;
+
+ GENERAL_NAMES *alt_names = X509_get_ext_d2i(peer, NID_subject_alt_name, 0, 0);
+ int alt_name_count = sk_GENERAL_NAME_num(alt_names);
+
+ for (i = 0; i < alt_name_count; i++) {
+ GENERAL_NAME *san = sk_GENERAL_NAME_value(alt_names, i);
+ if (san->type != GEN_DNS) {
+ /* we only care about DNS names */
+ continue;
+ }
- if (sslsock->ssl_active) {
- int retry = 1;
+ san_name_len = ASN1_STRING_length(san->d.dNSName);
+ ASN1_STRING_to_UTF8(&cert_name, san->d.dNSName);
- do {
- nr_bytes = SSL_read(sslsock->ssl_handle, buf, count);
+ /* prevent null byte poisoning */
+ if (san_name_len != strlen((const char*)cert_name)) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Peer SAN entry is malformed");
+ } else {
+ is_match = strcasecmp(subject_name, (const char*)cert_name) == 0;
+ }
- if (sslsock->reneg && sslsock->reneg->should_close) {
- /* renegotiation rate limiting triggered */
- php_stream_xport_shutdown(stream, (stream_shutdown_t)SHUT_RDWR TSRMLS_CC);
- nr_bytes = 0;
- stream->eof = 1;
- break;
- } else if (nr_bytes <= 0) {
- retry = handle_ssl_error(stream, nr_bytes, 0 TSRMLS_CC);
- stream->eof = (retry == 0 && errno != EAGAIN && !SSL_pending(sslsock->ssl_handle));
-
- } else {
- /* we got the data */
- break;
- }
- } while (retry);
+ OPENSSL_free(cert_name);
- if (nr_bytes > 0) {
- php_stream_notify_progress_increment(stream->context, nr_bytes, 0);
+ if (is_match) {
+ break;
}
}
- else
- {
- nr_bytes = php_stream_socket_ops.read(stream, buf, count TSRMLS_CC);
- }
- if (nr_bytes < 0) {
- nr_bytes = 0;
+ return is_match;
+ }
+ /* }}} */
+
+ static zend_bool matches_common_name(X509 *peer, const char *subject_name TSRMLS_DC) /* {{{ */
+ {
+ char buf[1024];
+ X509_NAME *cert_name;
+ zend_bool is_match = 0;
+ int cert_name_len;
+
+ cert_name = X509_get_subject_name(peer);
+ cert_name_len = X509_NAME_get_text_by_NID(cert_name, NID_commonName, buf, sizeof(buf));
+
+ if (cert_name_len == -1) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to locate peer certificate CN");
+ } else if (cert_name_len != strlen(buf)) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Peer certificate CN=`%.*s' is malformed", cert_name_len, buf);
+ } else if (matches_wildcard_name(subject_name, buf)) {
+ is_match = 1;
+ } else {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Peer certificate CN=`%.*s' did not match expected CN=`%s'", cert_name_len, buf, subject_name);
}
- return nr_bytes;
+ return is_match;
}
+ /* }}} */
- static int php_openssl_sockop_close(php_stream *stream, int close_handle TSRMLS_DC)
+ static int apply_peer_verification_policy(SSL *ssl, X509 *peer, php_stream *stream TSRMLS_DC) /* {{{ */
{
+ zval **val = NULL;
+ char *peer_name = NULL;
+ int err,
+ must_verify_peer,
+ must_verify_peer_name,
+ must_verify_fingerprint,
+ has_cnmatch_ctx_opt;
+
php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract;
- #ifdef PHP_WIN32
- int n;
- #endif
- if (close_handle) {
- if (sslsock->ssl_active) {
- SSL_shutdown(sslsock->ssl_handle);
- sslsock->ssl_active = 0;
- }
- if (sslsock->ssl_handle) {
- SSL_free(sslsock->ssl_handle);
- sslsock->ssl_handle = NULL;
- }
- if (sslsock->ctx) {
- SSL_CTX_free(sslsock->ctx);
- sslsock->ctx = NULL;
- }
- #ifdef PHP_WIN32
- if (sslsock->s.socket == -1)
- sslsock->s.socket = SOCK_ERR;
- #endif
- if (sslsock->s.socket != SOCK_ERR) {
- #ifdef PHP_WIN32
- /* prevent more data from coming in */
- shutdown(sslsock->s.socket, SHUT_RD);
+ must_verify_peer = GET_VER_OPT("verify_peer")
- ? zend_is_true(*val)
++ ? zend_is_true(*val TSRMLS_CC)
+ : sslsock->is_client;
- /* try to make sure that the OS sends all data before we close the connection.
- * Essentially, we are waiting for the socket to become writeable, which means
- * that all pending data has been sent.
- * We use a small timeout which should encourage the OS to send the data,
- * but at the same time avoid hanging indefinitely.
- * */
- do {
- n = php_pollfd_for_ms(sslsock->s.socket, POLLOUT, 500);
- } while (n == -1 && php_socket_errno() == EINTR);
- #endif
- closesocket(sslsock->s.socket);
- sslsock->s.socket = SOCK_ERR;
- }
+ has_cnmatch_ctx_opt = GET_VER_OPT("CN_match");
+ must_verify_peer_name = (has_cnmatch_ctx_opt || GET_VER_OPT("verify_peer_name"))
- ? zend_is_true(*val)
++ ? zend_is_true(*val TSRMLS_CC)
+ : sslsock->is_client;
+
- must_verify_fingerprint = (GET_VER_OPT("peer_fingerprint") && zend_is_true(*val));
++ must_verify_fingerprint = (GET_VER_OPT("peer_fingerprint") && zend_is_true(*val TSRMLS_CC));
+
+ if ((must_verify_peer || must_verify_peer_name || must_verify_fingerprint) && peer == NULL) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not get peer certificate");
+ return FAILURE;
}
- if (sslsock->url_name) {
- pefree(sslsock->url_name, php_stream_is_persistent(stream));
+ /* Verify the peer against using CA file/path settings */
+ if (must_verify_peer) {
+ err = SSL_get_verify_result(ssl);
+ switch (err) {
+ case X509_V_OK:
+ /* fine */
+ break;
+ case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
- if (GET_VER_OPT("allow_self_signed") && zend_is_true(*val)) {
++ if (GET_VER_OPT("allow_self_signed") && zend_is_true(*val TSRMLS_CC)) {
+ /* allowed */
+ break;
+ }
+ /* not allowed, so fall through */
+ default:
+ php_error_docref(NULL TSRMLS_CC, E_WARNING,
+ "Could not verify peer: code:%d %s",
+ err,
+ X509_verify_cert_error_string(err)
+ );
+ return FAILURE;
+ }
}
- if (sslsock->reneg) {
- pefree(sslsock->reneg, php_stream_is_persistent(stream));
+ /* If a peer_fingerprint match is required this trumps peer and peer_name verification */
+ if (must_verify_fingerprint) {
+ if (Z_TYPE_PP(val) == IS_STRING || Z_TYPE_PP(val) == IS_ARRAY) {
+ if (!php_x509_fingerprint_match(peer, *val TSRMLS_CC)) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING,
+ "Peer fingerprint doesn't match"
+ );
+ return FAILURE;
+ }
+ } else {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING,
+ "Expected peer fingerprint must be a string or an array"
+ );
+ }
}
- pefree(sslsock, php_stream_is_persistent(stream));
+ /* verify the host name presented in the peer certificate */
+ if (must_verify_peer_name) {
+ GET_VER_OPT_STRING("peer_name", peer_name);
- return 0;
- }
+ if (has_cnmatch_ctx_opt) {
+ GET_VER_OPT_STRING("CN_match", peer_name);
+ php_error(E_DEPRECATED,
+ "the 'CN_match' SSL context option is deprecated in favor of 'peer_name'"
+ );
+ }
+ /* If no peer name was specified we use the autodetected url name in client environments */
+ if (peer_name == NULL && sslsock->is_client) {
+ peer_name = sslsock->url_name;
+ }
- static int php_openssl_sockop_flush(php_stream *stream TSRMLS_DC)
- {
- return php_stream_socket_ops.flush(stream TSRMLS_CC);
+ if (peer_name) {
+ if (matches_san_list(peer, peer_name TSRMLS_CC)) {
+ return SUCCESS;
+ } else if (matches_common_name(peer, peer_name TSRMLS_CC)) {
+ return SUCCESS;
+ } else {
+ return FAILURE;
+ }
+ } else {
+ return FAILURE;
+ }
+ }
+
+ return SUCCESS;
}
+ /* }}} */
- static int php_openssl_sockop_stat(php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC)
+ static int passwd_callback(char *buf, int num, int verify, void *data) /* {{{ */
{
- return php_stream_socket_ops.stat(stream, ssb TSRMLS_CC);
+ php_stream *stream = (php_stream *)data;
+ zval **val = NULL;
+ char *passphrase = NULL;
+ /* TODO: could expand this to make a callback into PHP user-space */
+
+ GET_VER_OPT_STRING("passphrase", passphrase);
+
+ if (passphrase) {
+ if (Z_STRLEN_PP(val) < num - 1) {
+ memcpy(buf, Z_STRVAL_PP(val), Z_STRLEN_PP(val)+1);
+ return Z_STRLEN_PP(val);
+ }
+ }
+ return 0;
}
+ /* }}} */
- static inline void limit_handshake_reneg(const SSL *ssl) /* {{{ */
+ #if defined(PHP_WIN32) && OPENSSL_VERSION_NUMBER >= 0x00907000L
+ #define RETURN_CERT_VERIFY_FAILURE(code) X509_STORE_CTX_set_error(x509_store_ctx, code); return 0;
+ static int win_cert_verify_callback(X509_STORE_CTX *x509_store_ctx, void *arg) /* {{{ */
{
+ PCCERT_CONTEXT cert_ctx = NULL;
+ PCCERT_CHAIN_CONTEXT cert_chain_ctx = NULL;
+
php_stream *stream;
php_openssl_netstream_data_t *sslsock;
- struct timeval now;
- long elapsed_time;
+ zval **val;
+ zend_bool is_self_signed = 0;
- stream = php_openssl_get_stream_from_ssl_handle(ssl);
+ TSRMLS_FETCH();
+
+ stream = (php_stream*)arg;
sslsock = (php_openssl_netstream_data_t*)stream->abstract;
- gettimeofday(&now, NULL);
- /* The initial handshake is never rate-limited */
- if (sslsock->reneg->prev_handshake == 0) {
- sslsock->reneg->prev_handshake = now.tv_sec;
- return;
- }
+ { /* First convert the x509 struct back to a DER encoded buffer and let Windows decode it into a form it can work with */
+ unsigned char *der_buf = NULL;
+ int der_len;
- elapsed_time = (now.tv_sec - sslsock->reneg->prev_handshake);
- sslsock->reneg->prev_handshake = now.tv_sec;
- sslsock->reneg->tokens -= (elapsed_time * (sslsock->reneg->limit / sslsock->reneg->window));
+ der_len = i2d_X509(x509_store_ctx->cert, &der_buf);
+ if (der_len < 0) {
+ unsigned long err_code, e;
+ char err_buf[512];
- if (sslsock->reneg->tokens < 0) {
- sslsock->reneg->tokens = 0;
+ while ((e = ERR_get_error()) != 0) {
+ err_code = e;
+ }
+
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error encoding X509 certificate: %d: %s", err_code, ERR_error_string(err_code, err_buf));
+ RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
+ }
+
+ cert_ctx = CertCreateCertificateContext(X509_ASN_ENCODING, der_buf, der_len);
+ OPENSSL_free(der_buf);
+
+ if (cert_ctx == NULL) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error creating certificate context: %s", php_win_err());
+ RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
+ }
}
- ++sslsock->reneg->tokens;
- /* The token level exceeds our allowed limit */
- if (sslsock->reneg->tokens > sslsock->reneg->limit) {
- zval **val;
+ { /* Next fetch the relevant cert chain from the store */
+ CERT_ENHKEY_USAGE enhkey_usage = {0};
+ CERT_USAGE_MATCH cert_usage = {0};
+ CERT_CHAIN_PARA chain_params = {sizeof(CERT_CHAIN_PARA)};
+ LPSTR usages[] = {szOID_PKIX_KP_SERVER_AUTH, szOID_SERVER_GATED_CRYPTO, szOID_SGC_NETSCAPE};
+ DWORD chain_flags = 0;
+ unsigned long allowed_depth = OPENSSL_DEFAULT_STREAM_VERIFY_DEPTH;
+ unsigned int i;
+
+ enhkey_usage.cUsageIdentifier = 3;
+ enhkey_usage.rgpszUsageIdentifier = usages;
+ cert_usage.dwType = USAGE_MATCH_TYPE_OR;
+ cert_usage.Usage = enhkey_usage;
+ chain_params.RequestedUsage = cert_usage;
+ chain_flags = CERT_CHAIN_CACHE_END_CERT | CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT;
+
+ if (!CertGetCertificateChain(NULL, cert_ctx, NULL, NULL, &chain_params, chain_flags, NULL, &cert_chain_ctx)) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error getting certificate chain: %s", php_win_err());
+ CertFreeCertificateContext(cert_ctx);
+ RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
+ }
- TSRMLS_FETCH();
+ /* check if the cert is self-signed */
+ if (cert_chain_ctx->cChain > 0 && cert_chain_ctx->rgpChain[0]->cElement > 0
+ && (cert_chain_ctx->rgpChain[0]->rgpElement[0]->TrustStatus.dwInfoStatus & CERT_TRUST_IS_SELF_SIGNED) != 0) {
+ is_self_signed = 1;
+ }
- sslsock->reneg->should_close = 1;
+ /* check the depth */
+ GET_VER_OPT_LONG("verify_depth", allowed_depth);
- if (stream->context && SUCCESS == php_stream_context_get_option(stream->context,
- "ssl", "reneg_limit_callback", &val)
- ) {
- zval *param, **params[1], *retval;
+ for (i = 0; i < cert_chain_ctx->cChain; i++) {
+ if (cert_chain_ctx->rgpChain[i]->cElement > allowed_depth) {
+ CertFreeCertificateChain(cert_chain_ctx);
+ CertFreeCertificateContext(cert_ctx);
+ RETURN_CERT_VERIFY_FAILURE(X509_V_ERR_CERT_CHAIN_TOO_LONG);
+ }
+ }
+ }
- MAKE_STD_ZVAL(param);
- php_stream_to_zval(stream, param);
- params[0] = ¶m;
+ { /* Then verify it against a policy */
+ SSL_EXTRA_CERT_CHAIN_POLICY_PARA ssl_policy_params = {sizeof(SSL_EXTRA_CERT_CHAIN_POLICY_PARA)};
+ CERT_CHAIN_POLICY_PARA chain_policy_params = {sizeof(CERT_CHAIN_POLICY_PARA)};
+ CERT_CHAIN_POLICY_STATUS chain_policy_status = {sizeof(CERT_CHAIN_POLICY_STATUS)};
+ LPWSTR server_name = NULL;
+ BOOL verify_result;
+
+ { /* This looks ridiculous and it is - but we validate the name ourselves using the peer_name
+ ctx option, so just use the CN from the cert here */
+
+ X509_NAME *cert_name;
+ unsigned char *cert_name_utf8;
+ int index, cert_name_utf8_len;
+ DWORD num_wchars;
+
+ cert_name = X509_get_subject_name(x509_store_ctx->cert);
+ index = X509_NAME_get_index_by_NID(cert_name, NID_commonName, -1);
+ if (index < 0) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to locate certificate CN");
+ CertFreeCertificateChain(cert_chain_ctx);
+ CertFreeCertificateContext(cert_ctx);
+ RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
+ }
- /* Closing the stream inside this callback would segfault! */
- stream->flags |= PHP_STREAM_FLAG_NO_FCLOSE;
- if (FAILURE == call_user_function_ex(EG(function_table), NULL, *val, &retval, 1, params, 0, NULL TSRMLS_CC)) {
- php_error(E_WARNING, "SSL: failed invoking reneg limit notification callback");
+ cert_name_utf8_len = PHP_X509_NAME_ENTRY_TO_UTF8(cert_name, index, cert_name_utf8);
+
+ num_wchars = MultiByteToWideChar(CP_UTF8, 0, (char*)cert_name_utf8, -1, NULL, 0);
+ if (num_wchars == 0) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to convert %s to wide character string", cert_name_utf8);
+ OPENSSL_free(cert_name_utf8);
+ CertFreeCertificateChain(cert_chain_ctx);
+ CertFreeCertificateContext(cert_ctx);
+ RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
}
- stream->flags ^= PHP_STREAM_FLAG_NO_FCLOSE;
- /* If the reneg_limit_callback returned true don't auto-close */
- if (retval != NULL && Z_TYPE_P(retval) == IS_BOOL && Z_BVAL_P(retval) == 1) {
- sslsock->reneg->should_close = 0;
+ server_name = emalloc((num_wchars * sizeof(WCHAR)) + sizeof(WCHAR));
+
+ num_wchars = MultiByteToWideChar(CP_UTF8, 0, (char*)cert_name_utf8, -1, server_name, num_wchars);
+ if (num_wchars == 0) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to convert %s to wide character string", cert_name_utf8);
+ efree(server_name);
+ OPENSSL_free(cert_name_utf8);
+ CertFreeCertificateChain(cert_chain_ctx);
+ CertFreeCertificateContext(cert_ctx);
+ RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
}
- FREE_ZVAL(param);
- if (retval != NULL) {
- zval_ptr_dtor(&retval);
+ OPENSSL_free(cert_name_utf8);
+ }
+
+ ssl_policy_params.dwAuthType = (sslsock->is_client) ? AUTHTYPE_SERVER : AUTHTYPE_CLIENT;
+ ssl_policy_params.pwszServerName = server_name;
+ chain_policy_params.pvExtraPolicyPara = &ssl_policy_params;
+
+ verify_result = CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL, cert_chain_ctx, &chain_policy_params, &chain_policy_status);
+
+ efree(server_name);
+ CertFreeCertificateChain(cert_chain_ctx);
+ CertFreeCertificateContext(cert_ctx);
+
+ if (!verify_result) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error verifying certificate chain policy: %s", php_win_err());
+ RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
+ }
+
+ if (chain_policy_status.dwError != 0) {
+ /* The chain does not match the policy */
+ if (is_self_signed && chain_policy_status.dwError == CERT_E_UNTRUSTEDROOT
+ && GET_VER_OPT("allow_self_signed") && zend_is_true(*val)) {
+ /* allow self-signed certs */
+ X509_STORE_CTX_set_error(x509_store_ctx, X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT);
+ } else {
+ RETURN_CERT_VERIFY_FAILURE(SSL_R_CERTIFICATE_VERIFY_FAILED);
}
- } else {
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "SSL: client-initiated handshake rate limit exceeded by peer");
}
}
- }
- /* }}} */
- static void php_openssl_info_callback(const SSL *ssl, int where, int ret) /* {{{ */
- {
- /* Rate-limit client-initiated handshake renegotiation to prevent DoS */
- if (where & SSL_CB_HANDSHAKE_START) {
- limit_handshake_reneg(ssl);
- }
+ return 1;
}
/* }}} */
+ #endif
- static inline void init_handshake_limiting(php_stream *stream, php_openssl_netstream_data_t *sslsock) /* {{{ */
+ static long load_stream_cafile(X509_STORE *cert_store, const char *cafile TSRMLS_DC) /* {{{ */
{
- zval **val;
- long limit = DEFAULT_RENEG_LIMIT;
- long window = DEFAULT_RENEG_WINDOW;
+ php_stream *stream;
+ X509 *cert;
+ BIO *buffer;
+ int buffer_active = 0;
+ char *line = NULL;
+ size_t line_len;
+ long certs_added = 0;
- if (stream->context &&
- SUCCESS == php_stream_context_get_option(stream->context,
- "ssl", "reneg_limit", &val)
- ) {
- convert_to_long(*val);
- limit = Z_LVAL_PP(val);
+ stream = php_stream_open_wrapper(cafile, "rb", 0, NULL);
+
+ if (stream == NULL) {
+ php_error(E_WARNING, "failed loading cafile stream: `%s'", cafile);
+ return 0;
+ } else if (stream->wrapper->is_url) {
+ php_stream_close(stream);
+ php_error(E_WARNING, "remote cafile streams are disabled for security purposes");
+ return 0;
}
- /* No renegotiation rate-limiting */
- if (limit < 0) {
- return;
+ cert_start: {
+ line = php_stream_get_line(stream, NULL, 0, &line_len);
+ if (line == NULL) {
+ goto stream_complete;
+ } else if (!strcmp(line, "-----BEGIN CERTIFICATE-----\n") ||
+ !strcmp(line, "-----BEGIN CERTIFICATE-----\r\n")
+ ) {
+ buffer = BIO_new(BIO_s_mem());
+ buffer_active = 1;
+ goto cert_line;
+ } else {
+ efree(line);
+ goto cert_start;
+ }
}
- if (stream->context &&
- SUCCESS == php_stream_context_get_option(stream->context,
- "ssl", "reneg_window", &val)
- ) {
- convert_to_long(*val);
- window = Z_LVAL_PP(val);
+ cert_line: {
+ BIO_puts(buffer, line);
+ efree(line);
+ line = php_stream_get_line(stream, NULL, 0, &line_len);
+ if (line == NULL) {
+ goto stream_complete;
+ } else if (!strcmp(line, "-----END CERTIFICATE-----") ||
+ !strcmp(line, "-----END CERTIFICATE-----\n") ||
+ !strcmp(line, "-----END CERTIFICATE-----\r\n")
+ ) {
+ goto add_cert;
+ } else {
+ goto cert_line;
+ }
}
- sslsock->reneg = (void*)pemalloc(sizeof(php_openssl_handshake_bucket_t),
- php_stream_is_persistent(stream)
- );
+ add_cert: {
+ BIO_puts(buffer, line);
+ efree(line);
+ cert = PEM_read_bio_X509(buffer, NULL, 0, NULL);
+ BIO_free(buffer);
+ buffer_active = 0;
+ if (cert && X509_STORE_add_cert(cert_store, cert)) {
+ ++certs_added;
+ }
+ goto cert_start;
+ }
- sslsock->reneg->limit = limit;
- sslsock->reneg->window = window;
- sslsock->reneg->prev_handshake = 0;
- sslsock->reneg->tokens = 0;
- sslsock->reneg->should_close = 0;
+ stream_complete: {
+ php_stream_close(stream);
+ if (buffer_active == 1) {
+ BIO_free(buffer);
+ }
+ }
+
+ if (certs_added == 0) {
+ php_error(E_WARNING, "no valid certs found cafile stream: `%s'", cafile);
+ }
+
+ return certs_added;
+ }
+ /* }}} */
+
+ static int enable_peer_verification(SSL_CTX *ctx, php_stream *stream TSRMLS_DC) /* {{{ */
+ {
+ zval **val = NULL;
+ char *cafile = NULL;
+ char *capath = NULL;
+
+ GET_VER_OPT_STRING("cafile", cafile);
+ GET_VER_OPT_STRING("capath", capath);
+
+ if (!cafile) {
+ cafile = zend_ini_string("openssl.cafile", sizeof("openssl.cafile"), 0);
+ cafile = strlen(cafile) ? cafile : NULL;
+ }
+
+ if (!capath) {
+ capath = zend_ini_string("openssl.capath", sizeof("openssl.capath"), 0);
+ capath = strlen(capath) ? capath : NULL;
+ }
+
+ if (cafile || capath) {
+ if (!SSL_CTX_load_verify_locations(ctx, cafile, capath)) {
+ if (cafile && !load_stream_cafile(SSL_CTX_get_cert_store(ctx), cafile TSRMLS_CC)) {
+ return FAILURE;
+ }
+ }
+ } else {
+ #if defined(PHP_WIN32) && OPENSSL_VERSION_NUMBER >= 0x00907000L
+ SSL_CTX_set_cert_verify_callback(ctx, win_cert_verify_callback, (void *)stream);
+ SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
+ #else
+ php_openssl_netstream_data_t *sslsock;
+ sslsock = (php_openssl_netstream_data_t*)stream->abstract;
+
+ if (sslsock->is_client && !SSL_CTX_set_default_verify_paths(ctx)) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING,
+ "Unable to set default verify locations and no CA settings specified");
+ return FAILURE;
+ }
+ #endif
+ }
+
+ SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, verify_callback);
+
+ return SUCCESS;
+ }
+ /* }}} */
+
+ static void disable_peer_verification(SSL_CTX *ctx, php_stream *stream TSRMLS_DC) /* {{{ */
+ {
+ SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, NULL);
+ }
+ /* }}} */
+
+ static int set_local_cert(SSL_CTX *ctx, php_stream *stream TSRMLS_DC) /* {{{ */
+ {
+ zval **val = NULL;
+ char *certfile = NULL;
- SSL_CTX_set_info_callback(sslsock->ctx, php_openssl_info_callback);
+ GET_VER_OPT_STRING("local_cert", certfile);
+
+ if (certfile) {
+ char resolved_path_buff[MAXPATHLEN];
+ const char * private_key = NULL;
+
+ if (VCWD_REALPATH(certfile, resolved_path_buff)) {
+ /* a certificate to use for authentication */
+ if (SSL_CTX_use_certificate_chain_file(ctx, resolved_path_buff) != 1) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to set local cert chain file `%s'; Check that your cafile/capath settings include details of your certificate and its issuer", certfile);
+ return FAILURE;
+ }
+ GET_VER_OPT_STRING("local_pk", private_key);
+
+ if (private_key) {
+ char resolved_path_buff_pk[MAXPATHLEN];
+ if (VCWD_REALPATH(private_key, resolved_path_buff_pk)) {
+ if (SSL_CTX_use_PrivateKey_file(ctx, resolved_path_buff_pk, SSL_FILETYPE_PEM) != 1) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to set private key file `%s'", resolved_path_buff_pk);
+ return FAILURE;
+ }
+ }
+ } else {
+ if (SSL_CTX_use_PrivateKey_file(ctx, resolved_path_buff, SSL_FILETYPE_PEM) != 1) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to set private key file `%s'", resolved_path_buff);
+ return FAILURE;
+ }
+ }
+
+ #if OPENSSL_VERSION_NUMBER < 0x10001001L
+ do {
+ /* Unnecessary as of OpenSSLv1.0.1 (will segfault if used with >= 10001001 ) */
+ X509 *cert = NULL;
+ EVP_PKEY *key = NULL;
+ SSL *tmpssl = SSL_new(ctx);
+ cert = SSL_get_certificate(tmpssl);
+
+ if (cert) {
+ key = X509_get_pubkey(cert);
+ EVP_PKEY_copy_parameters(key, SSL_get_privatekey(tmpssl));
+ EVP_PKEY_free(key);
+ }
+ SSL_free(tmpssl);
+ } while (0);
+ #endif
+ if (!SSL_CTX_check_private_key(ctx)) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Private key does not match certificate!");
+ }
+ }
+ }
+
+ return SUCCESS;
}
/* }}} */
}
#endif
- #if OPENSSL_VERSION_NUMBER >= 0x10000000L
- {
- if (stream->context && (FAILURE == php_stream_context_get_option(
- stream->context, "ssl", "disable_compression", &val) ||
- zend_is_true(*val TSRMLS_CC))
- ) {
- SSL_CTX_set_options(sslsock->ctx, SSL_OP_NO_COMPRESSION);
+ if (php_stream_context_get_option(stream->context, "ssl", "dh_param", &val) == SUCCESS) {
+ convert_to_string_ex(val);
+ if (FAILURE == set_server_dh_param(ctx, Z_STRVAL_PP(val) TSRMLS_CC)) {
+ return FAILURE;
}
}
- #endif
- if (!sslsock->is_client && stream->context && SUCCESS == php_stream_context_get_option(
+ if (FAILURE == set_server_rsa_key(stream, ctx TSRMLS_CC)) {
+ return FAILURE;
+ }
+
+ if (SUCCESS == php_stream_context_get_option(
stream->context, "ssl", "honor_cipher_order", &val) &&
- zend_is_true(*val)
+ zend_is_true(*val TSRMLS_CC)
) {
- SSL_CTX_set_options(sslsock->ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
+ ssl_ctx_options |= SSL_OP_CIPHER_SERVER_PREFERENCE;
}
- if (!sslsock->is_client && stream->context && SUCCESS == php_stream_context_get_option(
+ if (SUCCESS == php_stream_context_get_option(
stream->context, "ssl", "single_dh_use", &val) &&
- zend_is_true(*val)
+ zend_is_true(*val TSRMLS_CC)
) {
- SSL_CTX_set_options(sslsock->ctx, SSL_OP_SINGLE_DH_USE);
+ ssl_ctx_options |= SSL_OP_SINGLE_DH_USE;
}
- if (!sslsock->is_client && stream->context && SUCCESS == php_stream_context_get_option(
+ if (SUCCESS == php_stream_context_get_option(
stream->context, "ssl", "single_ecdh_use", &val) &&
- zend_is_true(*val)
+ zend_is_true(*val TSRMLS_CC)
) {
- SSL_CTX_set_options(sslsock->ctx, SSL_OP_SINGLE_ECDH_USE);
+ ssl_ctx_options |= SSL_OP_SINGLE_ECDH_USE;
}
- sslsock->ssl_handle = php_SSL_new_from_context(sslsock->ctx, stream TSRMLS_CC);
- if (sslsock->ssl_handle == NULL) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "failed to create an SSL handle");
- SSL_CTX_free(sslsock->ctx);
- sslsock->ctx = NULL;
- return -1;
- }
+ SSL_CTX_set_options(ctx, ssl_ctx_options);
- if (!sslsock->is_client && stream->context && SUCCESS == php_stream_context_get_option(
- stream->context, "ssl", "honor_cipher_order", &val) &&
- zend_is_true(*val TSRMLS_CC)
- ) {
- SSL_CTX_set_options(sslsock->ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
- }
+ return SUCCESS;
+ }
+ /* }}} */
- #ifdef SSL_MODE_RELEASE_BUFFERS
- mode = SSL_get_mode(sslsock->ssl_handle);
- SSL_set_mode(sslsock->ssl_handle, mode | SSL_MODE_RELEASE_BUFFERS);
- #endif
+ #ifdef HAVE_SNI
+ static int server_sni_callback(SSL *ssl_handle, int *al, void *arg) /* {{{ */
+ {
+ php_stream *stream;
+ php_openssl_netstream_data_t *sslsock;
+ unsigned i;
+ const char *server_name;
- if (!sslsock->is_client) {
- init_handshake_limiting(stream, sslsock);
+ server_name = SSL_get_servername(ssl_handle, TLSEXT_NAMETYPE_host_name);
+
+ if (!server_name) {
+ return SSL_TLSEXT_ERR_NOACK;
}
- if (!SSL_set_fd(sslsock->ssl_handle, sslsock->s.socket)) {
- handle_ssl_error(stream, 0, 1 TSRMLS_CC);
+ stream = (php_stream*)SSL_get_ex_data(ssl_handle, php_openssl_get_ssl_stream_data_index());
+ sslsock = (php_openssl_netstream_data_t*)stream->abstract;
+
+ if (!(sslsock->sni_cert_count && sslsock->sni_certs)) {
+ return SSL_TLSEXT_ERR_NOACK;
}
- if (cparam->inputs.session) {
- if (cparam->inputs.session->ops != &php_openssl_socket_ops) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "supplied session stream must be an SSL enabled stream");
- } else if (((php_openssl_netstream_data_t*)cparam->inputs.session->abstract)->ssl_handle == NULL) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "supplied SSL session stream is not initialized");
- } else {
- SSL_copy_session_id(sslsock->ssl_handle, ((php_openssl_netstream_data_t*)cparam->inputs.session->abstract)->ssl_handle);
+ for (i=0; i < sslsock->sni_cert_count; i++) {
+ if (matches_wildcard_name(server_name, sslsock->sni_certs[i].name)) {
+ SSL_set_SSL_CTX(ssl_handle, sslsock->sni_certs[i].ctx);
+ return SSL_TLSEXT_ERR_OK;
}
}
- return 0;
+
+ return SSL_TLSEXT_ERR_NOACK;
}
+ /* }}} */
- static zval *php_capture_ssl_session_meta(SSL *ssl_handle)
+ static int enable_server_sni(php_stream *stream, php_openssl_netstream_data_t *sslsock TSRMLS_DC)
{
- zval *meta_arr;
- char *proto_str;
- long proto = SSL_version(ssl_handle);
- const SSL_CIPHER *cipher = SSL_get_current_cipher(ssl_handle);
+ zval **val;
+ zval **current;
+ char *key;
+ uint key_len;
+ ulong key_index;
+ int key_type;
+ HashPosition pos;
+ int i = 0;
+ char resolved_path_buff[MAXPATHLEN];
+ SSL_CTX *ctx;
+
+ /* If the stream ctx disables SNI we're finished here */
- if (GET_VER_OPT("SNI_enabled") && !zend_is_true(*val)) {
++ if (GET_VER_OPT("SNI_enabled") && !zend_is_true(*val TSRMLS_CC)) {
+ return SUCCESS;
+ }
- switch (proto) {
- #if OPENSSL_VERSION_NUMBER >= 0x10001001L
- case TLS1_2_VERSION: proto_str = "TLSv1.2"; break;
- case TLS1_1_VERSION: proto_str = "TLSv1.1"; break;
- #endif
- case TLS1_VERSION: proto_str = "TLSv1"; break;
- case SSL3_VERSION: proto_str = "SSLv3"; break;
- case SSL2_VERSION: proto_str = "SSLv2"; break;
- default: proto_str = "UNKNOWN";
+ /* If no SNI cert array is specified we're finished here */
+ if (!GET_VER_OPT("SNI_server_certs")) {
+ return SUCCESS;
}
- MAKE_STD_ZVAL(meta_arr);
- array_init(meta_arr);
- add_assoc_string(meta_arr, "protocol", proto_str, 1);
- add_assoc_string(meta_arr, "cipher_name", (char *) SSL_CIPHER_get_name(cipher), 1);
- add_assoc_long(meta_arr, "cipher_bits", SSL_CIPHER_get_bits(cipher, NULL));
- add_assoc_string(meta_arr, "cipher_version", SSL_CIPHER_get_version(cipher), 1);
+ if (Z_TYPE_PP(val) != IS_ARRAY) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING,
+ "SNI_server_certs requires an array mapping host names to cert paths"
+ );
+ return FAILURE;
+ }
- return meta_arr;
- }
+ sslsock->sni_cert_count = zend_hash_num_elements(Z_ARRVAL_PP(val));
+ if (sslsock->sni_cert_count == 0) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING,
+ "SNI_server_certs host cert array must not be empty"
+ );
+ return FAILURE;
+ }
- static int php_set_server_rsa_key(php_stream *stream,
- php_openssl_netstream_data_t *sslsock
- TSRMLS_DC)
- {
- zval ** val;
- int rsa_key_size;
- RSA* rsa;
- int retval = 1;
+ sslsock->sni_certs = (php_openssl_sni_cert_t*)safe_pemalloc(sslsock->sni_cert_count,
+ sizeof(php_openssl_sni_cert_t), 0, php_stream_is_persistent(stream)
+ );
- if (php_stream_context_get_option(stream->context, "ssl", "rsa_key_size", &val) == SUCCESS) {
- rsa_key_size = (int) Z_LVAL_PP(val);
- if ((rsa_key_size != 1) && (rsa_key_size & (rsa_key_size - 1))) {
+ for (zend_hash_internal_pointer_reset_ex(Z_ARRVAL_PP(val), &pos);
+ zend_hash_get_current_data_ex(Z_ARRVAL_PP(val), (void **)¤t, &pos) == SUCCESS;
+ zend_hash_move_forward_ex(Z_ARRVAL_PP(val), &pos)
+ ) {
+ key_type = zend_hash_get_current_key_ex(Z_ARRVAL_PP(val), &key, &key_len, &key_index, 0, &pos);
+ if (key_type != HASH_KEY_IS_STRING) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "RSA key size requires a power of 2: %d",
- rsa_key_size);
+ "SNI_server_certs array requires string host name keys"
+ );
+ return FAILURE;
+ }
- rsa_key_size = 2048;
+ if (VCWD_REALPATH(Z_STRVAL_PP(current), resolved_path_buff)) {
+ /* The hello method is not inherited by SSL structs when assigning a new context
+ * inside the SNI callback, so the just use SSLv23 */
+ ctx = SSL_CTX_new(SSLv23_server_method());
+
+ if (SSL_CTX_use_certificate_chain_file(ctx, resolved_path_buff) != 1) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING,
+ "failed setting local cert chain file `%s'; " \
+ "check that your cafile/capath settings include " \
+ "details of your certificate and its issuer",
+ resolved_path_buff
+ );
+ SSL_CTX_free(ctx);
+ return FAILURE;
+ } else if (SSL_CTX_use_PrivateKey_file(ctx, resolved_path_buff, SSL_FILETYPE_PEM) != 1) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING,
+ "failed setting private key from file `%s'",
+ resolved_path_buff
+ );
+ SSL_CTX_free(ctx);
+ return FAILURE;
+ } else {
+ sslsock->sni_certs[i].name = pestrdup(key, php_stream_is_persistent(stream));
+ sslsock->sni_certs[i].ctx = ctx;
+ ++i;
+ }
+ } else {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING,
+ "failed setting local cert chain file `%s'; file not found",
+ Z_STRVAL_PP(current)
+ );
+ return FAILURE;
}
- } else {
- rsa_key_size = 2048;
}
- rsa = RSA_generate_key(rsa_key_size, RSA_F4, NULL, NULL);
+ SSL_CTX_set_tlsext_servername_callback(sslsock->ctx, server_sni_callback);
- if (!SSL_set_tmp_rsa(sslsock->ssl_handle, rsa)) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "Failed setting RSA key");
- retval = 0;
+ return SUCCESS;
+ }
+
-static void enable_client_sni(php_stream *stream, php_openssl_netstream_data_t *sslsock) /* {{{ */
++static void enable_client_sni(php_stream *stream, php_openssl_netstream_data_t *sslsock TSRMLS_DC) /* {{{ */
+ {
+ zval **val;
+ char *sni_server_name;
+
+ /* If SNI is explicitly disabled we're finished here */
- if (GET_VER_OPT("SNI_enabled") && !zend_is_true(*val)) {
++ if (GET_VER_OPT("SNI_enabled") && !zend_is_true(*val TSRMLS_CC)) {
+ return;
}
- RSA_free(rsa);
+ sni_server_name = sslsock->url_name;
- return retval;
- }
+ GET_VER_OPT_STRING("peer_name", sni_server_name);
+ if (GET_VER_OPT("SNI_server_name")) {
+ GET_VER_OPT_STRING("SNI_server_name", sni_server_name);
+ php_error(E_DEPRECATED, "SNI_server_name is deprecated in favor of peer_name");
+ }
- static int php_set_server_dh_param(php_openssl_netstream_data_t *sslsock,
- char *dh_path
- TSRMLS_DC)
+ if (sni_server_name) {
+ SSL_set_tlsext_host_name(sslsock->ssl_handle, sni_server_name);
+ }
+ }
+ /* }}} */
+ #endif
+
+ int php_openssl_setup_crypto(php_stream *stream,
+ php_openssl_netstream_data_t *sslsock,
+ php_stream_xport_crypto_param *cparam
+ TSRMLS_DC) /* {{{ */
{
- DH *dh;
- BIO* bio;
+ const SSL_METHOD *method;
+ long ssl_ctx_options;
+ long method_flags;
+ char *cipherlist = NULL;
+ zval **val;
- bio = BIO_new_file(dh_path, "r");
+ if (sslsock->ssl_handle) {
+ if (sslsock->s.is_blocked) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSL/TLS already set-up for this stream");
+ return FAILURE;
+ } else {
+ return SUCCESS;
+ }
+ }
- if (bio == NULL) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "Invalid dh_param file: %s",
- dh_path);
+ ERR_clear_error();
- return 0;
- }
+ /* We need to do slightly different things based on client/server method
+ * so lets remember which method was selected */
+ sslsock->is_client = cparam->inputs.method & STREAM_CRYPTO_IS_CLIENT;
+ method_flags = ((cparam->inputs.method >> 1) << 1);
- dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
- BIO_free(bio);
+ /* Should we use a specific crypto method or is generic SSLv23 okay? */
+ if ((method_flags & (method_flags-1)) == 0) {
+ ssl_ctx_options = SSL_OP_ALL;
+ method = php_select_crypto_method(method_flags, sslsock->is_client TSRMLS_CC);
+ if (method == NULL) {
+ return FAILURE;
+ }
+ } else {
+ method = sslsock->is_client ? SSLv23_client_method() : SSLv23_server_method();
+ ssl_ctx_options = php_get_crypto_method_ctx_flags(method_flags TSRMLS_CC);
+ if (ssl_ctx_options == -1) {
+ return FAILURE;
+ }
+ }
- if (dh == NULL) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "Failed reading DH params from file: %s",
- dh_path);
+ #if OPENSSL_VERSION_NUMBER >= 0x10001001L
+ sslsock->ctx = SSL_CTX_new(method);
+ #else
+ /* Avoid const warning with old versions */
+ sslsock->ctx = SSL_CTX_new((SSL_METHOD*)method);
+ #endif
- return 0;
+ if (sslsock->ctx == NULL) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSL context creation failure");
+ return FAILURE;
}
- if (SSL_set_tmp_dh(sslsock->ssl_handle, dh) < 0) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "DH param assignment failed");
- DH_free(dh);
- return 0;
+ #if OPENSSL_VERSION_NUMBER >= 0x0090806fL
- if (GET_VER_OPT("no_ticket") && zend_is_true(*val)) {
++ if (GET_VER_OPT("no_ticket") && zend_is_true(*val TSRMLS_CC)) {
+ ssl_ctx_options |= SSL_OP_NO_TICKET;
}
+ #endif
- DH_free(dh);
-
- return 1;
- }
+ #if OPENSSL_VERSION_NUMBER >= 0x0090605fL
+ ssl_ctx_options &= ~SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS;
+ #endif
- static int php_enable_server_crypto_opts(php_stream *stream,
- php_openssl_netstream_data_t *sslsock
- TSRMLS_DC)
- {
- zval **val;
- #ifdef HAVE_ECDH
- int curve_nid;
- EC_KEY *ecdh;
+ #if OPENSSL_VERSION_NUMBER >= 0x10000000L
- if (!GET_VER_OPT("disable_compression") || zend_is_true(*val)) {
++ if (!GET_VER_OPT("disable_compression") || zend_is_true(*val TSRMLS_CC)) {
+ ssl_ctx_options |= SSL_OP_NO_COMPRESSION;
+ }
#endif
- if (php_stream_context_get_option(stream->context, "ssl", "dh_param", &val) == SUCCESS) {
- convert_to_string_ex(val);
- if (!php_set_server_dh_param(sslsock, Z_STRVAL_PP(val) TSRMLS_CC)) {
- return 0;
- }
- if (GET_VER_OPT("verify_peer") && !zend_is_true(*val)) {
++ if (GET_VER_OPT("verify_peer") && !zend_is_true(*val TSRMLS_CC)) {
+ disable_peer_verification(sslsock->ctx, stream TSRMLS_CC);
+ } else if (FAILURE == enable_peer_verification(sslsock->ctx, stream TSRMLS_CC)) {
+ return FAILURE;
}
- #ifdef HAVE_ECDH
+ /* callback for the passphrase (for localcert) */
+ if (GET_VER_OPT("passphrase")) {
+ SSL_CTX_set_default_passwd_cb_userdata(sslsock->ctx, stream);
+ SSL_CTX_set_default_passwd_cb(sslsock->ctx, passwd_callback);
+ }
- if (php_stream_context_get_option(stream->context, "ssl", "ecdh_curve", &val) == SUCCESS) {
- char *curve_str;
- convert_to_string_ex(val);
- curve_str = Z_STRVAL_PP(val);
- curve_nid = OBJ_sn2nid(curve_str);
- if (curve_nid == NID_undef) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "Invalid ECDH curve: %s",
- curve_str);
+ GET_VER_OPT_STRING("ciphers", cipherlist);
+ if (!cipherlist) {
+ cipherlist = OPENSSL_DEFAULT_STREAM_CIPHERS;
+ }
+ if (SSL_CTX_set_cipher_list(sslsock->ctx, cipherlist) != 1) {
+ return FAILURE;
+ }
- return 0;
- }
- } else {
- curve_nid = NID_X9_62_prime256v1;
+ if (FAILURE == set_local_cert(sslsock->ctx, stream TSRMLS_CC)) {
+ return FAILURE;
}
- ecdh = EC_KEY_new_by_curve_name(curve_nid);
- if (ecdh == NULL) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "Failed generating ECDH curve");
+ SSL_CTX_set_options(sslsock->ctx, ssl_ctx_options);
- return 0;
+ if (sslsock->is_client == 0 &&
+ stream->context &&
+ FAILURE == set_server_specific_opts(stream, sslsock->ctx TSRMLS_CC)
+ ) {
+ return FAILURE;
}
- SSL_set_tmp_ecdh(sslsock->ssl_handle, ecdh);
- EC_KEY_free(ecdh);
+ sslsock->ssl_handle = SSL_new(sslsock->ctx);
+ if (sslsock->ssl_handle == NULL) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSL handle creation failure");
+ SSL_CTX_free(sslsock->ctx);
+ sslsock->ctx = NULL;
+ return FAILURE;
+ } else {
+ SSL_set_ex_data(sslsock->ssl_handle, php_openssl_get_ssl_stream_data_index(), stream);
+ }
- #else
+ if (!SSL_set_fd(sslsock->ssl_handle, sslsock->s.socket)) {
+ handle_ssl_error(stream, 0, 1 TSRMLS_CC);
+ }
- if (php_stream_context_get_option(stream->context, "ssl", "ecdh_curve", &val) == SUCCESS) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING,
- "ECDH curve support not compiled into the OpenSSL lib against which PHP is linked");
+ #ifdef HAVE_SNI
+ /* Enable server-side SNI */
+ if (sslsock->is_client == 0 && enable_server_sni(stream, sslsock TSRMLS_CC) == FAILURE) {
+ return FAILURE;
+ }
+ #endif
+
+ /* Enable server-side handshake renegotiation rate-limiting */
+ if (sslsock->is_client == 0) {
+ init_server_reneg_limit(stream, sslsock);
}
+ #ifdef SSL_MODE_RELEASE_BUFFERS
+ do {
+ long mode = SSL_get_mode(sslsock->ssl_handle);
+ SSL_set_mode(sslsock->ssl_handle, mode | SSL_MODE_RELEASE_BUFFERS);
+ } while (0);
#endif
- if (!php_set_server_rsa_key(stream, sslsock TSRMLS_CC)) {
- return 0;
+ if (cparam->inputs.session) {
+ if (cparam->inputs.session->ops != &php_openssl_socket_ops) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "supplied session stream must be an SSL enabled stream");
+ } else if (((php_openssl_netstream_data_t*)cparam->inputs.session->abstract)->ssl_handle == NULL) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "supplied SSL session stream is not initialized");
+ } else {
+ SSL_copy_session_id(sslsock->ssl_handle, ((php_openssl_netstream_data_t*)cparam->inputs.session->abstract)->ssl_handle);
+ }
}
- return 1;
+ return SUCCESS;
}
+ /* }}} */
- #if OPENSSL_VERSION_NUMBER >= 0x00908070L && !defined(OPENSSL_NO_TLSEXT)
- static inline void enable_client_sni(php_stream *stream, php_openssl_netstream_data_t *sslsock) /* {{{ */
+ static zval *capture_session_meta(SSL *ssl_handle) /* {{{ */
{
- zval **val;
-
- TSRMLS_FETCH();
+ zval *meta_arr;
+ char *proto_str;
+ long proto = SSL_version(ssl_handle);
+ const SSL_CIPHER *cipher = SSL_get_current_cipher(ssl_handle);
- if (stream->context &&
- (php_stream_context_get_option(stream->context, "ssl", "SNI_enabled", &val) == FAILURE
- || zend_is_true(*val TSRMLS_CC))
- ) {
- if (php_stream_context_get_option(stream->context, "ssl", "SNI_server_name", &val) == SUCCESS) {
- convert_to_string_ex(val);
- SSL_set_tlsext_host_name(sslsock->ssl_handle, Z_STRVAL_PP(val));
- } else if (sslsock->url_name) {
- SSL_set_tlsext_host_name(sslsock->ssl_handle, sslsock->url_name);
- }
- } else if (!stream->context && sslsock->url_name) {
- SSL_set_tlsext_host_name(sslsock->ssl_handle, sslsock->url_name);
+ switch (proto) {
+ #if OPENSSL_VERSION_NUMBER >= 0x10001001L
+ case TLS1_2_VERSION: proto_str = "TLSv1.2"; break;
+ case TLS1_1_VERSION: proto_str = "TLSv1.1"; break;
+ #endif
+ case TLS1_VERSION: proto_str = "TLSv1"; break;
+ case SSL3_VERSION: proto_str = "SSLv3"; break;
+ case SSL2_VERSION: proto_str = "SSLv2"; break;
+ default: proto_str = "UNKNOWN";
}
+
+ MAKE_STD_ZVAL(meta_arr);
+ array_init(meta_arr);
+ add_assoc_string(meta_arr, "protocol", proto_str, 1);
+ add_assoc_string(meta_arr, "cipher_name", (char *) SSL_CIPHER_get_name(cipher), 1);
+ add_assoc_long(meta_arr, "cipher_bits", SSL_CIPHER_get_bits(cipher, NULL));
+ add_assoc_string(meta_arr, "cipher_version", SSL_CIPHER_get_version(cipher), 1);
+
+ return meta_arr;
}
/* }}} */
- #endif
- static int capture_peer_certs(php_stream *stream,
- php_openssl_netstream_data_t *sslsock,
- X509 *peer_cert
- TSRMLS_DC)
+ static int capture_peer_certs(php_stream *stream, php_openssl_netstream_data_t *sslsock, X509 *peer_cert TSRMLS_DC) /* {{{ */
{
zval **val, *zcert;
int cert_captured = 0;
int blocked = sslsock->s.is_blocked,
has_timeout = 0;
- #if OPENSSL_VERSION_NUMBER >= 0x00908070L && !defined(OPENSSL_NO_TLSEXT)
- {
+ #ifdef HAVE_SNI
if (sslsock->is_client) {
-- enable_client_sni(stream, sslsock);
++ enable_client_sni(stream, sslsock TSRMLS_CC);
}
- }
#endif
- if (!sslsock->is_client && !php_enable_server_crypto_opts(stream, sslsock TSRMLS_CC)) {
- return -1;
- }
-
if (!sslsock->state_set) {
if (sslsock->is_client) {
SSL_set_connect_state(sslsock->ssl_handle);
if (SUCCESS == php_stream_context_get_option(stream->context,
"ssl", "capture_session_meta", &val) &&
- zend_is_true(*val)
+ zend_is_true(*val TSRMLS_CC)
) {
- zval *meta_arr = php_capture_ssl_session_meta(sslsock->ssl_handle);
+ zval *meta_arr = capture_session_meta(sslsock->ssl_handle);
php_stream_context_set_option(stream->context, "ssl", "session_meta", meta_arr);
zval_dtor(meta_arr);
efree(meta_arr);
projects / php / commitdiff