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improve ssl operations with possible renegotiation

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This commit is contained in:
Anatol Belski 2015-03-12 17:31:28 +01:00
parent 1cf70266e7
commit 41571e7fa9
1 changed files with 138 additions and 10 deletions
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148
ext/ftp/ftp.c
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@ -310,6 +310,11 @@ ftp_login(ftpbuf_t *ftp, const char *user, const char *pass)
retry = 0;
break;
case SSL_ERROR_ZERO_RETURN:
retry = 0;
SSL_shutdown(ftp->ssl_handle);
break;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE: {
php_pollfd p;
@ -1256,6 +1261,13 @@ my_send(ftpbuf_t *ftp, php_socket_t s, void *buf, size_t len)
{
zend_long size, sent;
int n;
#ifdef HAVE_FTP_SSL
int err;
zend_bool retry = 0;
SSL *handle = NULL;
php_socket_t fd;
#endif
size = len;
while (size) {
@ -1276,9 +1288,48 @@ my_send(ftpbuf_t *ftp, php_socket_t s, void *buf, size_t len)
#ifdef HAVE_FTP_SSL
if (ftp->use_ssl && ftp->fd == s && ftp->ssl_active) {
sent = SSL_write(ftp->ssl_handle, buf, size);
handle = ftp->ssl_handle;
fd = ftp->fd;
} else if (ftp->use_ssl && ftp->fd != s && ftp->use_ssl_for_data && ftp->data->ssl_active) {
sent = SSL_write(ftp->data->ssl_handle, buf, size);
handle = ftp->data->ssl_handle;
fd = ftp->data->fd;
}
if (handle) {
do {
sent = SSL_write(handle, buf, size);
err = SSL_get_error(handle, sent);
switch (err) {
case SSL_ERROR_NONE:
retry = 0;
break;
case SSL_ERROR_ZERO_RETURN:
retry = 0;
SSL_shutdown(handle);
break;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_CONNECT: {
php_pollfd p;
int i;
p.fd = fd;
p.events = POLLOUT;
p.revents = 0;
i = php_poll2(&p, 1, 300);
retry = i > 0;
}
break;
default:
php_error_docref(NULL, E_WARNING, "SSL write failed");
return -1;
}
} while (retry);
} else {
#endif
sent = send(s, buf, size, 0);
@ -1303,6 +1354,12 @@ int
my_recv(ftpbuf_t *ftp, php_socket_t s, void *buf, size_t len)
{
int n, nr_bytes;
#ifdef HAVE_FTP_SSL
int err;
zend_bool retry = 0;
SSL *handle = NULL;
php_socket_t fd;
#endif
n = php_pollfd_for_ms(s, PHP_POLLREADABLE, ftp->timeout_sec * 1000);
if (n < 1) {
@ -1320,9 +1377,48 @@ my_recv(ftpbuf_t *ftp, php_socket_t s, void *buf, size_t len)
#ifdef HAVE_FTP_SSL
if (ftp->use_ssl && ftp->fd == s && ftp->ssl_active) {
nr_bytes = SSL_read(ftp->ssl_handle, buf, len);
handle = ftp->ssl_handle;
fd = ftp->fd;
} else if (ftp->use_ssl && ftp->fd != s && ftp->use_ssl_for_data && ftp->data->ssl_active) {
nr_bytes = SSL_read(ftp->data->ssl_handle, buf, len);
handle = ftp->data->ssl_handle;
fd = ftp->data->fd;
}
if (handle) {
do {
nr_bytes = SSL_read(handle, buf, len);
err = SSL_get_error(handle, nr_bytes);
switch (err) {
case SSL_ERROR_NONE:
retry = 0;
break;
case SSL_ERROR_ZERO_RETURN:
retry = 0;
SSL_shutdown(handle);
break;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_CONNECT: {
php_pollfd p;
int i;
p.fd = fd;
p.events = POLLIN|POLLPRI;
p.revents = 0;
i = php_poll2(&p, 1, 300);
retry = i > 0;
}
break;
default:
php_error_docref(NULL, E_WARNING, "SSL read failed");
return -1;
}
} while (retry);
} else {
#endif
nr_bytes = recv(s, buf, len, 0);
@ -1540,6 +1636,8 @@ data_accept(databuf_t *data, ftpbuf_t *ftp)
#ifdef HAVE_FTP_SSL
SSL_CTX *ctx;
zend_long ssl_ctx_options = SSL_OP_ALL;
int err, res;
zend_bool retry;
#endif
if (data->fd != -1) {
@ -1585,12 +1683,42 @@ data_accepted:
SSL_copy_session_id(data->ssl_handle, ftp->ssl_handle);
}
if (SSL_connect(data->ssl_handle) <= 0) {
php_error_docref(NULL, E_WARNING, "data_accept: SSL/TLS handshake failed");
SSL_shutdown(data->ssl_handle);
SSL_free(data->ssl_handle);
return 0;
}
do {
res = SSL_connect(data->ssl_handle);
err = SSL_get_error(data->ssl_handle, res);
switch (err) {
case SSL_ERROR_NONE:
retry = 0;
break;
case SSL_ERROR_ZERO_RETURN:
retry = 0;
SSL_shutdown(data->ssl_handle);
break;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE: {
php_pollfd p;
int i;
p.fd = ftp->fd;
p.events = (err == SSL_ERROR_WANT_READ) ? (POLLIN|POLLPRI) : POLLOUT;
p.revents = 0;
i = php_poll2(&p, 1, 300);
retry = i > 0;
}
break;
default:
php_error_docref(NULL, E_WARNING, "data_accept: SSL/TLS handshake failed");
SSL_shutdown(data->ssl_handle);
SSL_free(data->ssl_handle);
return 0;
}
} while (retry);
data->ssl_active = 1;
}