diff options
author | Lorry Tar Creator <lorry-tar-importer@baserock.org> | 2013-03-14 05:42:27 +0000 |
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committer | <> | 2013-04-03 16:25:08 +0000 |
commit | c4dd7a1a684490673e25aaf4fabec5df138854c4 (patch) | |
tree | 4d57c44caae4480efff02b90b9be86f44bf25409 /ext/openssl/xp_ssl.c | |
download | php2-master.tar.gz |
Imported from /home/lorry/working-area/delta_php2/php-5.4.13.tar.bz2.HEADphp-5.4.13master
Diffstat (limited to 'ext/openssl/xp_ssl.c')
-rw-r--r-- | ext/openssl/xp_ssl.c | 971 |
1 files changed, 971 insertions, 0 deletions
diff --git a/ext/openssl/xp_ssl.c b/ext/openssl/xp_ssl.c new file mode 100644 index 0000000..0e15238 --- /dev/null +++ b/ext/openssl/xp_ssl.c @@ -0,0 +1,971 @@ +/* + +----------------------------------------------------------------------+ + | PHP Version 5 | + +----------------------------------------------------------------------+ + | Copyright (c) 1997-2013 The PHP Group | + +----------------------------------------------------------------------+ + | This source file is subject to version 3.01 of the PHP license, | + | that is bundled with this package in the file LICENSE, and is | + | available through the world-wide-web at the following url: | + | http://www.php.net/license/3_01.txt | + | If you did not receive a copy of the PHP license and are unable to | + | obtain it through the world-wide-web, please send a note to | + | license@php.net so we can mail you a copy immediately. | + +----------------------------------------------------------------------+ + | Author: Wez Furlong <wez@thebrainroom.com> | + +----------------------------------------------------------------------+ +*/ + +/* $Id$ */ + +#include "php.h" +#include "ext/standard/file.h" +#include "ext/standard/url.h" +#include "streams/php_streams_int.h" +#include "ext/standard/php_smart_str.h" +#include "php_network.h" +#include "php_openssl.h" +#include <openssl/ssl.h> +#include <openssl/x509.h> +#include <openssl/err.h> + +#ifdef PHP_WIN32 +#include "win32/time.h" +#endif + +#ifdef NETWARE +#include <sys/select.h> +#endif + +int php_openssl_apply_verification_policy(SSL *ssl, X509 *peer, php_stream *stream TSRMLS_DC); +SSL *php_SSL_new_from_context(SSL_CTX *ctx, php_stream *stream TSRMLS_DC); +int php_openssl_get_x509_list_id(void); + +/* This implementation is very closely tied to the that of the native + * sockets implemented in the core. + * Don't try this technique in other extensions! + * */ + +typedef struct _php_openssl_netstream_data_t { + php_netstream_data_t s; + SSL *ssl_handle; + SSL_CTX *ctx; + struct timeval connect_timeout; + int enable_on_connect; + int is_client; + int ssl_active; + php_stream_xport_crypt_method_t method; + char *sni; + unsigned state_set:1; + unsigned _spare:31; +} php_openssl_netstream_data_t; + +php_stream_ops php_openssl_socket_ops; + +/* it doesn't matter that we do some hash traversal here, since it is done only + * in an error condition arising from a network connection problem */ +static int is_http_stream_talking_to_iis(php_stream *stream TSRMLS_DC) +{ + if (stream->wrapperdata && stream->wrapper && strcasecmp(stream->wrapper->wops->label, "HTTP") == 0) { + /* the wrapperdata is an array zval containing the headers */ + zval **tmp; + +#define SERVER_MICROSOFT_IIS "Server: Microsoft-IIS" +#define SERVER_GOOGLE "Server: GFE/" + + zend_hash_internal_pointer_reset(Z_ARRVAL_P(stream->wrapperdata)); + while (SUCCESS == zend_hash_get_current_data(Z_ARRVAL_P(stream->wrapperdata), (void**)&tmp)) { + + if (strncasecmp(Z_STRVAL_PP(tmp), SERVER_MICROSOFT_IIS, sizeof(SERVER_MICROSOFT_IIS)-1) == 0) { + return 1; + } else if (strncasecmp(Z_STRVAL_PP(tmp), SERVER_GOOGLE, sizeof(SERVER_GOOGLE)-1) == 0) { + return 1; + } + + zend_hash_move_forward(Z_ARRVAL_P(stream->wrapperdata)); + } + } + return 0; +} + +static int handle_ssl_error(php_stream *stream, int nr_bytes, zend_bool is_init TSRMLS_DC) +{ + php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract; + int err = SSL_get_error(sslsock->ssl_handle, nr_bytes); + char esbuf[512]; + smart_str ebuf = {0}; + unsigned long ecode; + int retry = 1; + + switch(err) { + case SSL_ERROR_ZERO_RETURN: + /* SSL terminated (but socket may still be active) */ + retry = 0; + break; + case SSL_ERROR_WANT_READ: + case SSL_ERROR_WANT_WRITE: + /* re-negotiation, or perhaps the SSL layer needs more + * packets: retry in next iteration */ + errno = EAGAIN; + retry = is_init ? 1 : sslsock->s.is_blocked; + break; + case SSL_ERROR_SYSCALL: + if (ERR_peek_error() == 0) { + if (nr_bytes == 0) { + if (!is_http_stream_talking_to_iis(stream TSRMLS_CC) && ERR_get_error() != 0) { + php_error_docref(NULL TSRMLS_CC, E_WARNING, + "SSL: fatal protocol error"); + } + SSL_set_shutdown(sslsock->ssl_handle, SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN); + stream->eof = 1; + retry = 0; + } else { + char *estr = php_socket_strerror(php_socket_errno(), NULL, 0); + + php_error_docref(NULL TSRMLS_CC, E_WARNING, + "SSL: %s", estr); + + efree(estr); + retry = 0; + } + break; + } + + + /* fall through */ + default: + /* some other error */ + ecode = ERR_get_error(); + + switch (ERR_GET_REASON(ecode)) { + case SSL_R_NO_SHARED_CIPHER: + php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSL_R_NO_SHARED_CIPHER: no suitable shared cipher could be used. This could be because the server is missing an SSL certificate (local_cert context option)"); + retry = 0; + break; + + default: + do { + /* NULL is automatically added */ + ERR_error_string_n(ecode, esbuf, sizeof(esbuf)); + if (ebuf.c) { + smart_str_appendc(&ebuf, '\n'); + } + smart_str_appends(&ebuf, esbuf); + } while ((ecode = ERR_get_error()) != 0); + + smart_str_0(&ebuf); + + php_error_docref(NULL TSRMLS_CC, E_WARNING, + "SSL operation failed with code %d. %s%s", + err, + ebuf.c ? "OpenSSL Error messages:\n" : "", + ebuf.c ? ebuf.c : ""); + if (ebuf.c) { + smart_str_free(&ebuf); + } + } + + retry = 0; + errno = 0; + } + return retry; +} + + +static size_t php_openssl_sockop_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC) +{ + php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract; + int didwrite; + + if (sslsock->ssl_active) { + int retry = 1; + + do { + didwrite = SSL_write(sslsock->ssl_handle, buf, count); + + if (didwrite <= 0) { + retry = handle_ssl_error(stream, didwrite, 0 TSRMLS_CC); + } else { + break; + } + } while(retry); + + if (didwrite > 0) { + php_stream_notify_progress_increment(stream->context, didwrite, 0); + } + } else { + didwrite = php_stream_socket_ops.write(stream, buf, count TSRMLS_CC); + } + + if (didwrite < 0) { + didwrite = 0; + } + + return didwrite; +} + +static size_t php_openssl_sockop_read(php_stream *stream, char *buf, size_t count TSRMLS_DC) +{ + php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract; + int nr_bytes = 0; + + if (sslsock->ssl_active) { + int retry = 1; + + do { + nr_bytes = SSL_read(sslsock->ssl_handle, buf, count); + + 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); + + if (nr_bytes > 0) { + php_stream_notify_progress_increment(stream->context, nr_bytes, 0); + } + } + else + { + nr_bytes = php_stream_socket_ops.read(stream, buf, count TSRMLS_CC); + } + + if (nr_bytes < 0) { + nr_bytes = 0; + } + + return nr_bytes; +} + + +static int php_openssl_sockop_close(php_stream *stream, int close_handle TSRMLS_DC) +{ + 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); + + /* 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 indefintely. + * */ + 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; + } + } + + if (sslsock->sni) { + pefree(sslsock->sni, php_stream_is_persistent(stream)); + } + pefree(sslsock, php_stream_is_persistent(stream)); + + return 0; +} + +static int php_openssl_sockop_flush(php_stream *stream TSRMLS_DC) +{ + return php_stream_socket_ops.flush(stream TSRMLS_CC); +} + +static int php_openssl_sockop_stat(php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC) +{ + return php_stream_socket_ops.stat(stream, ssb TSRMLS_CC); +} + + +static inline int php_openssl_setup_crypto(php_stream *stream, + php_openssl_netstream_data_t *sslsock, + php_stream_xport_crypto_param *cparam + TSRMLS_DC) +{ + SSL_METHOD *method; + long ssl_ctx_options = SSL_OP_ALL; + + 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 -1; + } else { + return 0; + } + } + + /* need to do slightly different things, based on client/server method, + * so lets remember which method was selected */ + + switch (cparam->inputs.method) { + case STREAM_CRYPTO_METHOD_SSLv23_CLIENT: + sslsock->is_client = 1; + method = SSLv23_client_method(); + break; + case STREAM_CRYPTO_METHOD_SSLv2_CLIENT: +#ifdef OPENSSL_NO_SSL2 + php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSLv2 support is not compiled into the OpenSSL library PHP is linked against"); + return -1; +#else + sslsock->is_client = 1; + method = SSLv2_client_method(); + break; +#endif + case STREAM_CRYPTO_METHOD_SSLv3_CLIENT: + sslsock->is_client = 1; + method = SSLv3_client_method(); + break; + case STREAM_CRYPTO_METHOD_TLS_CLIENT: + sslsock->is_client = 1; + method = TLSv1_client_method(); + break; + case STREAM_CRYPTO_METHOD_SSLv23_SERVER: + sslsock->is_client = 0; + method = SSLv23_server_method(); + break; + case STREAM_CRYPTO_METHOD_SSLv3_SERVER: + sslsock->is_client = 0; + method = SSLv3_server_method(); + break; + case STREAM_CRYPTO_METHOD_SSLv2_SERVER: +#ifdef OPENSSL_NO_SSL2 + php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSLv2 support is not compiled into the OpenSSL library PHP is linked against"); + return -1; +#else + sslsock->is_client = 0; + method = SSLv2_server_method(); + break; +#endif + case STREAM_CRYPTO_METHOD_TLS_SERVER: + sslsock->is_client = 0; + method = TLSv1_server_method(); + break; + default: + return -1; + + } + + sslsock->ctx = SSL_CTX_new(method); + if (sslsock->ctx == NULL) { + php_error_docref(NULL TSRMLS_CC, E_WARNING, "failed to create an SSL context"); + return -1; + } + +#if OPENSSL_VERSION_NUMBER >= 0x0090605fL + ssl_ctx_options &= ~SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS; +#endif + SSL_CTX_set_options(sslsock->ctx, ssl_ctx_options); + +#if OPENSSL_VERSION_NUMBER >= 0x0090806fL + { + zval **val; + + if (stream->context && SUCCESS == php_stream_context_get_option( + stream->context, "ssl", "no_ticket", &val) && + zval_is_true(*val)) { + SSL_CTX_set_options(sslsock->ctx, SSL_OP_NO_TICKET); + } + } +#endif + +#if OPENSSL_VERSION_NUMBER >= 0x10000000L + { + zval **val; + + if (stream->context && SUCCESS == php_stream_context_get_option( + stream->context, "ssl", "disable_compression", &val) && + zval_is_true(*val)) { + SSL_CTX_set_options(sslsock->ctx, SSL_OP_NO_COMPRESSION); + } + } +#endif + + 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; + } + + if (!SSL_set_fd(sslsock->ssl_handle, sslsock->s.socket)) { + handle_ssl_error(stream, 0, 1 TSRMLS_CC); + } + + 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 0; +} + +static inline int php_openssl_enable_crypto(php_stream *stream, + php_openssl_netstream_data_t *sslsock, + php_stream_xport_crypto_param *cparam + TSRMLS_DC) +{ + int n, retry = 1; + + if (cparam->inputs.activate && !sslsock->ssl_active) { + struct timeval start_time, + *timeout; + int blocked = sslsock->s.is_blocked, + has_timeout = 0; + +#if OPENSSL_VERSION_NUMBER >= 0x0090806fL && !defined(OPENSSL_NO_TLSEXT) + if (sslsock->is_client && sslsock->sni) { + SSL_set_tlsext_host_name(sslsock->ssl_handle, sslsock->sni); + } +#endif + + if (!sslsock->state_set) { + if (sslsock->is_client) { + SSL_set_connect_state(sslsock->ssl_handle); + } else { + SSL_set_accept_state(sslsock->ssl_handle); + } + sslsock->state_set = 1; + } + + if (SUCCESS == php_set_sock_blocking(sslsock->s.socket, 0 TSRMLS_CC)) { + sslsock->s.is_blocked = 0; + } + + timeout = sslsock->is_client ? &sslsock->connect_timeout : &sslsock->s.timeout; + has_timeout = !sslsock->s.is_blocked && (timeout->tv_sec || timeout->tv_usec); + /* gettimeofday is not monotonic; using it here is not strictly correct */ + if (has_timeout) { + gettimeofday(&start_time, NULL); + } + + do { + struct timeval cur_time, + elapsed_time; + + if (sslsock->is_client) { + n = SSL_connect(sslsock->ssl_handle); + } else { + n = SSL_accept(sslsock->ssl_handle); + } + + if (has_timeout) { + gettimeofday(&cur_time, NULL); + elapsed_time.tv_sec = cur_time.tv_sec - start_time.tv_sec; + elapsed_time.tv_usec = cur_time.tv_usec - start_time.tv_usec; + if (cur_time.tv_usec < start_time.tv_usec) { + elapsed_time.tv_sec -= 1L; + elapsed_time.tv_usec += 1000000L; + } + + if (elapsed_time.tv_sec > timeout->tv_sec || + (elapsed_time.tv_sec == timeout->tv_sec && + elapsed_time.tv_usec > timeout->tv_usec)) { + php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSL: crypto enabling timeout"); + return -1; + } + } + + if (n <= 0) { + /* in case of SSL_ERROR_WANT_READ/WRITE, do not retry in non-blocking mode */ + retry = handle_ssl_error(stream, n, blocked TSRMLS_CC); + if (retry) { + /* wait until something interesting happens in the socket. It may be a + * timeout. Also consider the unlikely of possibility of a write block */ + int err = SSL_get_error(sslsock->ssl_handle, n); + struct timeval left_time; + + if (has_timeout) { + left_time.tv_sec = timeout->tv_sec - elapsed_time.tv_sec; + left_time.tv_usec = timeout->tv_usec - elapsed_time.tv_usec; + if (timeout->tv_usec < elapsed_time.tv_usec) { + left_time.tv_sec -= 1L; + left_time.tv_usec += 1000000L; + } + } + php_pollfd_for(sslsock->s.socket, (err == SSL_ERROR_WANT_READ) ? + (POLLIN|POLLPRI) : POLLOUT, has_timeout ? &left_time : NULL); + } + } else { + retry = 0; + } + } while (retry); + + if (sslsock->s.is_blocked != blocked && SUCCESS == php_set_sock_blocking(sslsock->s.socket, blocked TSRMLS_CC)) { + sslsock->s.is_blocked = blocked; + } + + if (n == 1) { + X509 *peer_cert; + + peer_cert = SSL_get_peer_certificate(sslsock->ssl_handle); + + if (FAILURE == php_openssl_apply_verification_policy(sslsock->ssl_handle, peer_cert, stream TSRMLS_CC)) { + SSL_shutdown(sslsock->ssl_handle); + n = -1; + } else { + sslsock->ssl_active = 1; + + /* allow the script to capture the peer cert + * and/or the certificate chain */ + if (stream->context) { + zval **val, *zcert; + + if (SUCCESS == php_stream_context_get_option( + stream->context, "ssl", + "capture_peer_cert", &val) && + zval_is_true(*val)) { + MAKE_STD_ZVAL(zcert); + ZVAL_RESOURCE(zcert, zend_list_insert(peer_cert, + php_openssl_get_x509_list_id() TSRMLS_CC)); + php_stream_context_set_option(stream->context, + "ssl", "peer_certificate", + zcert); + peer_cert = NULL; + FREE_ZVAL(zcert); + } + + if (SUCCESS == php_stream_context_get_option( + stream->context, "ssl", + "capture_peer_cert_chain", &val) && + zval_is_true(*val)) { + zval *arr; + STACK_OF(X509) *chain; + + MAKE_STD_ZVAL(arr); + chain = SSL_get_peer_cert_chain( + sslsock->ssl_handle); + + if (chain && sk_X509_num(chain) > 0) { + int i; + array_init(arr); + + for (i = 0; i < sk_X509_num(chain); i++) { + X509 *mycert = X509_dup( + sk_X509_value(chain, i)); + MAKE_STD_ZVAL(zcert); + ZVAL_RESOURCE(zcert, + zend_list_insert(mycert, + php_openssl_get_x509_list_id() TSRMLS_CC)); + add_next_index_zval(arr, zcert); + } + + } else { + ZVAL_NULL(arr); + } + + php_stream_context_set_option(stream->context, + "ssl", "peer_certificate_chain", + arr); + zval_dtor(arr); + efree(arr); + } + } + } + + if (peer_cert) { + X509_free(peer_cert); + } + } else { + n = errno == EAGAIN ? 0 : -1; + } + + return n; + + } else if (!cparam->inputs.activate && sslsock->ssl_active) { + /* deactivate - common for server/client */ + SSL_shutdown(sslsock->ssl_handle); + sslsock->ssl_active = 0; + } + return -1; +} + +static inline int php_openssl_tcp_sockop_accept(php_stream *stream, php_openssl_netstream_data_t *sock, + php_stream_xport_param *xparam STREAMS_DC TSRMLS_DC) +{ + int clisock; + + xparam->outputs.client = NULL; + + clisock = php_network_accept_incoming(sock->s.socket, + xparam->want_textaddr ? &xparam->outputs.textaddr : NULL, + xparam->want_textaddr ? &xparam->outputs.textaddrlen : NULL, + xparam->want_addr ? &xparam->outputs.addr : NULL, + xparam->want_addr ? &xparam->outputs.addrlen : NULL, + xparam->inputs.timeout, + xparam->want_errortext ? &xparam->outputs.error_text : NULL, + &xparam->outputs.error_code + TSRMLS_CC); + + if (clisock >= 0) { + php_openssl_netstream_data_t *clisockdata; + + clisockdata = emalloc(sizeof(*clisockdata)); + + if (clisockdata == NULL) { + closesocket(clisock); + /* technically a fatal error */ + } else { + /* copy underlying tcp fields */ + memset(clisockdata, 0, sizeof(*clisockdata)); + memcpy(clisockdata, sock, sizeof(clisockdata->s)); + + clisockdata->s.socket = clisock; + + xparam->outputs.client = php_stream_alloc_rel(stream->ops, clisockdata, NULL, "r+"); + if (xparam->outputs.client) { + xparam->outputs.client->context = stream->context; + if (stream->context) { + zend_list_addref(stream->context->rsrc_id); + } + } + } + + if (xparam->outputs.client && sock->enable_on_connect) { + /* apply crypto */ + switch (sock->method) { + case STREAM_CRYPTO_METHOD_SSLv23_CLIENT: + sock->method = STREAM_CRYPTO_METHOD_SSLv23_SERVER; + break; + case STREAM_CRYPTO_METHOD_SSLv2_CLIENT: + sock->method = STREAM_CRYPTO_METHOD_SSLv2_SERVER; + break; + case STREAM_CRYPTO_METHOD_SSLv3_CLIENT: + sock->method = STREAM_CRYPTO_METHOD_SSLv3_SERVER; + break; + case STREAM_CRYPTO_METHOD_TLS_CLIENT: + sock->method = STREAM_CRYPTO_METHOD_TLS_SERVER; + break; + default: + break; + } + + clisockdata->method = sock->method; + + if (php_stream_xport_crypto_setup(xparam->outputs.client, clisockdata->method, + NULL TSRMLS_CC) < 0 || php_stream_xport_crypto_enable( + xparam->outputs.client, 1 TSRMLS_CC) < 0) { + php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to enable crypto"); + + php_stream_close(xparam->outputs.client); + xparam->outputs.client = NULL; + xparam->outputs.returncode = -1; + } + } + } + + return xparam->outputs.client == NULL ? -1 : 0; +} +static int php_openssl_sockop_set_option(php_stream *stream, int option, int value, void *ptrparam TSRMLS_DC) +{ + php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract; + php_stream_xport_crypto_param *cparam = (php_stream_xport_crypto_param *)ptrparam; + php_stream_xport_param *xparam = (php_stream_xport_param *)ptrparam; + + switch (option) { + case PHP_STREAM_OPTION_CHECK_LIVENESS: + { + struct timeval tv; + char buf; + int alive = 1; + + if (value == -1) { + if (sslsock->s.timeout.tv_sec == -1) { + tv.tv_sec = FG(default_socket_timeout); + tv.tv_usec = 0; + } else { + tv = sslsock->connect_timeout; + } + } else { + tv.tv_sec = value; + tv.tv_usec = 0; + } + + if (sslsock->s.socket == -1) { + alive = 0; + } else if (php_pollfd_for(sslsock->s.socket, PHP_POLLREADABLE|POLLPRI, &tv) > 0) { + if (sslsock->ssl_active) { + int n; + + do { + n = SSL_peek(sslsock->ssl_handle, &buf, sizeof(buf)); + if (n <= 0) { + int err = SSL_get_error(sslsock->ssl_handle, n); + + if (err == SSL_ERROR_SYSCALL) { + alive = php_socket_errno() == EAGAIN; + break; + } + + if (err == SSL_ERROR_WANT_READ || err == SSL_ERROR_WANT_WRITE) { + /* re-negotiate */ + continue; + } + + /* any other problem is a fatal error */ + alive = 0; + } + /* either peek succeeded or there was an error; we + * have set the alive flag appropriately */ + break; + } while (1); + } else if (0 == recv(sslsock->s.socket, &buf, sizeof(buf), MSG_PEEK) && php_socket_errno() != EAGAIN) { + alive = 0; + } + } + return alive ? PHP_STREAM_OPTION_RETURN_OK : PHP_STREAM_OPTION_RETURN_ERR; + } + + case PHP_STREAM_OPTION_CRYPTO_API: + + switch(cparam->op) { + + case STREAM_XPORT_CRYPTO_OP_SETUP: + cparam->outputs.returncode = php_openssl_setup_crypto(stream, sslsock, cparam TSRMLS_CC); + return PHP_STREAM_OPTION_RETURN_OK; + break; + case STREAM_XPORT_CRYPTO_OP_ENABLE: + cparam->outputs.returncode = php_openssl_enable_crypto(stream, sslsock, cparam TSRMLS_CC); + return PHP_STREAM_OPTION_RETURN_OK; + break; + default: + /* fall through */ + break; + } + + break; + + case PHP_STREAM_OPTION_XPORT_API: + switch(xparam->op) { + + case STREAM_XPORT_OP_CONNECT: + case STREAM_XPORT_OP_CONNECT_ASYNC: + /* TODO: Async connects need to check the enable_on_connect option when + * we notice that the connect has actually been established */ + php_stream_socket_ops.set_option(stream, option, value, ptrparam TSRMLS_CC); + + if ((sslsock->enable_on_connect) && + ((xparam->outputs.returncode == 0) || + (xparam->op == STREAM_XPORT_OP_CONNECT_ASYNC && + xparam->outputs.returncode == 1 && xparam->outputs.error_code == EINPROGRESS))) + { + if (php_stream_xport_crypto_setup(stream, sslsock->method, NULL TSRMLS_CC) < 0 || + php_stream_xport_crypto_enable(stream, 1 TSRMLS_CC) < 0) { + php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to enable crypto"); + xparam->outputs.returncode = -1; + } + } + return PHP_STREAM_OPTION_RETURN_OK; + + case STREAM_XPORT_OP_ACCEPT: + /* we need to copy the additional fields that the underlying tcp transport + * doesn't know about */ + xparam->outputs.returncode = php_openssl_tcp_sockop_accept(stream, sslsock, xparam STREAMS_CC TSRMLS_CC); + + + return PHP_STREAM_OPTION_RETURN_OK; + + default: + /* fall through */ + break; + } + } + + return php_stream_socket_ops.set_option(stream, option, value, ptrparam TSRMLS_CC); +} + +static int php_openssl_sockop_cast(php_stream *stream, int castas, void **ret TSRMLS_DC) +{ + php_openssl_netstream_data_t *sslsock = (php_openssl_netstream_data_t*)stream->abstract; + + switch(castas) { + case PHP_STREAM_AS_STDIO: + if (sslsock->ssl_active) { + return FAILURE; + } + if (ret) { + *ret = fdopen(sslsock->s.socket, stream->mode); + if (*ret) { + return SUCCESS; + } + return FAILURE; + } + return SUCCESS; + + case PHP_STREAM_AS_FD_FOR_SELECT: + if (ret) { + *(int *)ret = sslsock->s.socket; + } + return SUCCESS; + + case PHP_STREAM_AS_FD: + case PHP_STREAM_AS_SOCKETD: + if (sslsock->ssl_active) { + return FAILURE; + } + if (ret) { + *(int *)ret = sslsock->s.socket; + } + return SUCCESS; + default: + return FAILURE; + } +} + +php_stream_ops php_openssl_socket_ops = { + php_openssl_sockop_write, php_openssl_sockop_read, + php_openssl_sockop_close, php_openssl_sockop_flush, + "tcp_socket/ssl", + NULL, /* seek */ + php_openssl_sockop_cast, + php_openssl_sockop_stat, + php_openssl_sockop_set_option, +}; + +static char * get_sni(php_stream_context *ctx, char *resourcename, long resourcenamelen, int is_persistent TSRMLS_DC) { + + php_url *url; + + if (ctx) { + zval **val = NULL; + + if (php_stream_context_get_option(ctx, "ssl", "SNI_enabled", &val) == SUCCESS && !zend_is_true(*val)) { + return NULL; + } + if (php_stream_context_get_option(ctx, "ssl", "SNI_server_name", &val) == SUCCESS) { + convert_to_string_ex(val); + return pestrdup(Z_STRVAL_PP(val), is_persistent); + } + } + + if (!resourcename) { + return NULL; + } + + url = php_url_parse_ex(resourcename, resourcenamelen); + if (!url) { + return NULL; + } + + if (url->host) { + const char * host = url->host; + char * sni = NULL; + size_t len = strlen(host); + + /* skip trailing dots */ + while (len && host[len-1] == '.') { + --len; + } + + if (len) { + sni = pestrndup(host, len, is_persistent); + } + + php_url_free(url); + return sni; + } + + php_url_free(url); + return NULL; +} + +php_stream *php_openssl_ssl_socket_factory(const char *proto, long protolen, + char *resourcename, long resourcenamelen, + const char *persistent_id, int options, int flags, + struct timeval *timeout, + php_stream_context *context STREAMS_DC TSRMLS_DC) +{ + php_stream *stream = NULL; + php_openssl_netstream_data_t *sslsock = NULL; + + sslsock = pemalloc(sizeof(php_openssl_netstream_data_t), persistent_id ? 1 : 0); + memset(sslsock, 0, sizeof(*sslsock)); + + sslsock->s.is_blocked = 1; + /* this timeout is used by standard stream funcs, therefor it should use the default value */ + sslsock->s.timeout.tv_sec = FG(default_socket_timeout); + sslsock->s.timeout.tv_usec = 0; + + /* use separate timeout for our private funcs */ + sslsock->connect_timeout.tv_sec = timeout->tv_sec; + sslsock->connect_timeout.tv_usec = timeout->tv_usec; + + /* we don't know the socket until we have determined if we are binding or + * connecting */ + sslsock->s.socket = -1; + + /* Initialize context as NULL */ + sslsock->ctx = NULL; + + stream = php_stream_alloc_rel(&php_openssl_socket_ops, sslsock, persistent_id, "r+"); + + if (stream == NULL) { + pefree(sslsock, persistent_id ? 1 : 0); + return NULL; + } + + sslsock->sni = get_sni(context, resourcename, resourcenamelen, !!persistent_id TSRMLS_CC); + + if (strncmp(proto, "ssl", protolen) == 0) { + sslsock->enable_on_connect = 1; + sslsock->method = STREAM_CRYPTO_METHOD_SSLv23_CLIENT; + } else if (strncmp(proto, "sslv2", protolen) == 0) { +#ifdef OPENSSL_NO_SSL2 + php_error_docref(NULL TSRMLS_CC, E_WARNING, "SSLv2 support is not compiled into the OpenSSL library PHP is linked against"); + return NULL; +#else + sslsock->enable_on_connect = 1; + sslsock->method = STREAM_CRYPTO_METHOD_SSLv2_CLIENT; +#endif + } else if (strncmp(proto, "sslv3", protolen) == 0) { + sslsock->enable_on_connect = 1; + sslsock->method = STREAM_CRYPTO_METHOD_SSLv3_CLIENT; + } else if (strncmp(proto, "tls", protolen) == 0) { + sslsock->enable_on_connect = 1; + sslsock->method = STREAM_CRYPTO_METHOD_TLS_CLIENT; + } + + return stream; +} + + + +/* + * Local variables: + * tab-width: 4 + * c-basic-offset: 4 + * End: + * vim600: noet sw=4 ts=4 fdm=marker + * vim<600: noet sw=4 ts=4 + */ |