scottmac                                 Sat, 23 Jul 2011 01:29:44 +0000

Revision: http://svn.php.net/viewvc?view=revision&revision=313616

Log:
When we have a blocking SSL socket, respect the timeout option.

reading from SSL sockets could block indefinitely due to the lack
of timeout

Changed paths:
    U   php/php-src/branches/PHP_5_3/NEWS
    U   php/php-src/branches/PHP_5_3/ext/openssl/xp_ssl.c
    U   php/php-src/branches/PHP_5_4/ext/openssl/xp_ssl.c
    U   php/php-src/trunk/ext/openssl/xp_ssl.c

Modified: php/php-src/branches/PHP_5_3/NEWS
===================================================================
--- php/php-src/branches/PHP_5_3/NEWS   2011-07-23 01:08:24 UTC (rev 313615)
+++ php/php-src/branches/PHP_5_3/NEWS   2011-07-23 01:29:44 UTC (rev 313616)
@@ -7,6 +7,8 @@
 - OpenSSL
   . openssl_encrypt()/openssl_decrypt() truncated keys of variable length
     ciphers to the OpenSSL default for the algorithm. (Scott)
+  . On blocking SSL sockets respect the timeout option where possible.
+    (Scott)

 14 Jul 2011, PHP 5.3.7 RC3
 - Zend Engine:

Modified: php/php-src/branches/PHP_5_3/ext/openssl/xp_ssl.c
===================================================================
--- php/php-src/branches/PHP_5_3/ext/openssl/xp_ssl.c   2011-07-23 01:08:24 UTC 
(rev 313615)
+++ php/php-src/branches/PHP_5_3/ext/openssl/xp_ssl.c   2011-07-23 01:29:44 UTC 
(rev 313616)
@@ -204,6 +204,36 @@
        return didwrite;
 }

+static void php_openssl_stream_wait_for_data(php_stream *stream, 
php_netstream_data_t *sock TSRMLS_DC)
+{
+       int retval;
+       struct timeval *ptimeout;
+
+       if (sock->socket == -1) {
+               return;
+       }
+
+       sock->timeout_event = 0;
+
+       if (sock->timeout.tv_sec == -1)
+               ptimeout = NULL;
+       else
+               ptimeout = &sock->timeout;
+
+       while(1) {
+               retval = php_pollfd_for(sock->socket, PHP_POLLREADABLE, 
ptimeout);
+
+               if (retval == 0)
+                       sock->timeout_event = 1;
+
+               if (retval >= 0)
+                       break;
+
+               if (php_socket_errno() != EINTR)
+                       break;
+       }
+}
+
 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;
@@ -213,6 +243,13 @@
                int retry = 1;

                do {
+                       if (sslsock->s.is_blocked) {
+                               php_openssl_stream_wait_for_data(stream, 
&(sslsock->s) TSRMLS_CC);
+                               if (sslsock->s.timeout_event) {
+                                       break;
+                               }
+                               /* there is no guarantee that there is 
application data available but something is there */
+                       }
                        nr_bytes = SSL_read(sslsock->ssl_handle, buf, count);

                        if (nr_bytes <= 0) {

Modified: php/php-src/branches/PHP_5_4/ext/openssl/xp_ssl.c
===================================================================
--- php/php-src/branches/PHP_5_4/ext/openssl/xp_ssl.c   2011-07-23 01:08:24 UTC 
(rev 313615)
+++ php/php-src/branches/PHP_5_4/ext/openssl/xp_ssl.c   2011-07-23 01:29:44 UTC 
(rev 313616)
@@ -204,6 +204,36 @@
        return didwrite;
 }

+static void php_openssl_stream_wait_for_data(php_stream *stream, 
php_netstream_data_t *sock TSRMLS_DC)
+{
+       int retval;
+       struct timeval *ptimeout;
+
+       if (sock->socket == -1) {
+               return;
+       }
+
+       sock->timeout_event = 0;
+
+       if (sock->timeout.tv_sec == -1)
+               ptimeout = NULL;
+       else
+               ptimeout = &sock->timeout;
+
+       while(1) {
+               retval = php_pollfd_for(sock->socket, PHP_POLLREADABLE, 
ptimeout);
+
+               if (retval == 0)
+                       sock->timeout_event = 1;
+
+               if (retval >= 0)
+                       break;
+
+               if (php_socket_errno() != EINTR)
+                       break;
+       }
+}
+
 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;
@@ -213,6 +243,13 @@
                int retry = 1;

                do {
+                       if (sslsock->s.is_blocked) {
+                               php_openssl_stream_wait_for_data(stream, 
&(sslsock->s) TSRMLS_CC);
+                               if (sslsock->s.timeout_event) {
+                                       break;
+                               }
+                               /* there is no guarantee that there is 
application data available but something is there */
+                       }
                        nr_bytes = SSL_read(sslsock->ssl_handle, buf, count);

                        if (nr_bytes <= 0) {

Modified: php/php-src/trunk/ext/openssl/xp_ssl.c
===================================================================
--- php/php-src/trunk/ext/openssl/xp_ssl.c      2011-07-23 01:08:24 UTC (rev 
313615)
+++ php/php-src/trunk/ext/openssl/xp_ssl.c      2011-07-23 01:29:44 UTC (rev 
313616)
@@ -204,6 +204,36 @@
        return didwrite;
 }

+static void php_openssl_stream_wait_for_data(php_stream *stream, 
php_netstream_data_t *sock TSRMLS_DC)
+{
+       int retval;
+       struct timeval *ptimeout;
+
+       if (sock->socket == -1) {
+               return;
+       }
+
+       sock->timeout_event = 0;
+
+       if (sock->timeout.tv_sec == -1)
+               ptimeout = NULL;
+       else
+               ptimeout = &sock->timeout;
+
+       while(1) {
+               retval = php_pollfd_for(sock->socket, PHP_POLLREADABLE, 
ptimeout);
+
+               if (retval == 0)
+                       sock->timeout_event = 1;
+
+               if (retval >= 0)
+                       break;
+
+               if (php_socket_errno() != EINTR)
+                       break;
+       }
+}
+
 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;
@@ -213,6 +243,13 @@
                int retry = 1;

                do {
+                       if (sslsock->s.is_blocked) {
+                               php_openssl_stream_wait_for_data(stream, 
&(sslsock->s) TSRMLS_CC);
+                               if (sslsock->s.timeout_event) {
+                                       break;
+                               }
+                               /* there is no guarantee that there is 
application data available but something is there */
+                       }
                        nr_bytes = SSL_read(sslsock->ssl_handle, buf, count);

                        if (nr_bytes <= 0) {

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