SSL_write returns SSL_ERR_SYSCALL while Err_get_error() returns 0
0
I edited my code and this is what it looks like now. The server is trying to write some bytes on the socket.
int r;
FILE *fp;
fp = stderr;
const SSL_METHOD *method;
method = SSLv23_server_method();
ERR_clear_error();
if ( !ctx)
{
ctx = SSL_CTX_new(method);
if (!ctx) {
return 0;
}
SSL_CTX_set_ecdh_auto(ctx, 1);
if (SSL_CTX_use_certificate_file(ctx, "/home/cert.pem", SSL_FILETYPE_PEM) <= 0) {
ERR_print_errors_fp(fp);
}
if (SSL_CTX_use_PrivateKey_file(ctx, "/home/key.pem", SSL_FILETYPE_PEM) <= 0 ) {
ERR_print_errors_fp(fp);
}
}
if (!ctx) {
return;
}
SSL *ssl;
ssl = SSL_new(ctx);
SSL_set_fd(ssl, fd);
ERR_clear_error();
if (SSL_accept(ssl) <= 0) {
ERR_print_errors_fp(fp);
}
int rce = 0;
ERR_clear_error();
char *buffer = (char *) malloc(iova.iov_len);
memcpy(buffer, iova.iov_base, iova.iov_len);
r = SSL_write(ssl, buffer, (int)iova.iov_len);
// check how many bytes were written
if ( r <= 0 )
{
ERR_print_errors_fp(fp);
int err = errno;
switch(SSL_get_error(ssl,r)){
case SSL_ERROR_NONE:
continue;
case SSL_ERROR_ZERO_RETURN:
syslog(LOG_INFO, "SSL read encountered an error %d. Peer disconnected.", SSL_ERROR_ZERO_RETURN);
break;
case SSL_RECEIVED_SHUTDOWN:
syslog(LOG_INFO, "SSL read encountered an error %d. Shutdown.", SSL_RECEIVED_SHUTDOWN);
break;
case SSL_ERROR_SYSCALL:
syslog(LOG_INFO, "SSL write encountered an error %d and %lu. SYSCALL", SSL_get_error(ssl,r), ERR_get_error());
break;
default:
syslog(LOG_INFO, "SSL write encountered an error %d and %d. Quitting", SSL_get_error(ssl,r), err);
break;
}
Couple issues that I could not figure out -
SSL_accept() fails
SSL_write() then fails with SSL_RECEIVED_SHUTDOWN and err string =
error:00000002:lib(0):func(0):system lib
What am I doing wrong here with SSL_accept and SSL_write() ?
I am trying to use Openssl to do SSL_write() and I get the following error during SSL_write(). The server is trying to write some bytes to the socket connection fd -
error:140D0114:SSL routines:SSL_write:uninitialized:ssl_lib.c:1039:
Error: error:00000005:lib(0):func(0):DH lib
Here is my code
SSL *ssl;
if ( !ctx )
return 0;
ssl = SSL_new(ctx);
//SSL_set_fd(ssl, fd);
BIO *sbio = NULL;
sbio = BIO_new_socket(fd, BIO_NOCLOSE);
SSL_set_bio(ssl, sbio, sbio);
ERR_clear_error();
FILE *fp;
fp = stderr;
r = SSL_write(ssl, buffer, (len);
if ( r <= 0 )
{
ERR_print_errors_fp(fp);
switch(SSL_get_error(ssl,r)){
case SSL_ERROR_NONE:
syslog(LOG_INFO, "No real error. Continue.");
continue;
case SSL_ERROR_ZERO_RETURN:
syslog(LOG_INFO, "SSL read encountered an error %d. Peer disconnected.", SSL_ERROR_ZERO_RETURN);
break;
case SSL_RECEIVED_SHUTDOWN:
syslog(LOG_INFO, "SSL read encountered an error %d. Shutdown.", SSL_RECEIVED_SHUTDOWN);
break;
case SSL_ERROR_SYSCALL:
syslog(LOG_INFO, "SSL write encountered an error %d and %lu. SYSCALL", SSL_get_error(ssl,r), ERR_get_error());
break;
default:
syslog(LOG_INFO, "SSL write encountered an error %d and %d. Quitting", SSL_get_error(ssl,r), err);
break;
}
The SSL context (ctx) is valid to begin with.
I tried looking up an explanation of the error but did not find it. Nor did I find a similar issue that would resolve it. Can anyone help me understand what I can do to further debug this ? Or if they have a solution ?
Openssl version 1.0.2g
openssl
asked Nov 21 at 2:35
PeterJ
54
add a comment |
0
I edited my code and this is what it looks like now. The server is trying to write some bytes on the socket.
int r;
FILE *fp;
fp = stderr;
const SSL_METHOD *method;
method = SSLv23_server_method();
ERR_clear_error();
if ( !ctx)
{
ctx = SSL_CTX_new(method);
if (!ctx) {
return 0;
}
SSL_CTX_set_ecdh_auto(ctx, 1);
if (SSL_CTX_use_certificate_file(ctx, "/home/cert.pem", SSL_FILETYPE_PEM) <= 0) {
ERR_print_errors_fp(fp);
}
if (SSL_CTX_use_PrivateKey_file(ctx, "/home/key.pem", SSL_FILETYPE_PEM) <= 0 ) {
ERR_print_errors_fp(fp);
}
}
if (!ctx) {
return;
}
SSL *ssl;
ssl = SSL_new(ctx);
SSL_set_fd(ssl, fd);
ERR_clear_error();
if (SSL_accept(ssl) <= 0) {
ERR_print_errors_fp(fp);
}
int rce = 0;
ERR_clear_error();
char *buffer = (char *) malloc(iova.iov_len);
memcpy(buffer, iova.iov_base, iova.iov_len);
r = SSL_write(ssl, buffer, (int)iova.iov_len);
// check how many bytes were written
if ( r <= 0 )
{
ERR_print_errors_fp(fp);
int err = errno;
switch(SSL_get_error(ssl,r)){
case SSL_ERROR_NONE:
continue;
case SSL_ERROR_ZERO_RETURN:
syslog(LOG_INFO, "SSL read encountered an error %d. Peer disconnected.", SSL_ERROR_ZERO_RETURN);
break;
case SSL_RECEIVED_SHUTDOWN:
syslog(LOG_INFO, "SSL read encountered an error %d. Shutdown.", SSL_RECEIVED_SHUTDOWN);
break;
case SSL_ERROR_SYSCALL:
syslog(LOG_INFO, "SSL write encountered an error %d and %lu. SYSCALL", SSL_get_error(ssl,r), ERR_get_error());
break;
default:
syslog(LOG_INFO, "SSL write encountered an error %d and %d. Quitting", SSL_get_error(ssl,r), err);
break;
}
Couple issues that I could not figure out -
SSL_accept() fails
SSL_write() then fails with SSL_RECEIVED_SHUTDOWN and err string =
error:00000002:lib(0):func(0):system lib
What am I doing wrong here with SSL_accept and SSL_write() ?
I am trying to use Openssl to do SSL_write() and I get the following error during SSL_write(). The server is trying to write some bytes to the socket connection fd -
error:140D0114:SSL routines:SSL_write:uninitialized:ssl_lib.c:1039:
Error: error:00000005:lib(0):func(0):DH lib
Here is my code
SSL *ssl;
if ( !ctx )
return 0;
ssl = SSL_new(ctx);
//SSL_set_fd(ssl, fd);
BIO *sbio = NULL;
sbio = BIO_new_socket(fd, BIO_NOCLOSE);
SSL_set_bio(ssl, sbio, sbio);
ERR_clear_error();
FILE *fp;
fp = stderr;
r = SSL_write(ssl, buffer, (len);
if ( r <= 0 )
{
ERR_print_errors_fp(fp);
switch(SSL_get_error(ssl,r)){
case SSL_ERROR_NONE:
syslog(LOG_INFO, "No real error. Continue.");
continue;
case SSL_ERROR_ZERO_RETURN:
syslog(LOG_INFO, "SSL read encountered an error %d. Peer disconnected.", SSL_ERROR_ZERO_RETURN);
break;
case SSL_RECEIVED_SHUTDOWN:
syslog(LOG_INFO, "SSL read encountered an error %d. Shutdown.", SSL_RECEIVED_SHUTDOWN);
break;
case SSL_ERROR_SYSCALL:
syslog(LOG_INFO, "SSL write encountered an error %d and %lu. SYSCALL", SSL_get_error(ssl,r), ERR_get_error());
break;
default:
syslog(LOG_INFO, "SSL write encountered an error %d and %d. Quitting", SSL_get_error(ssl,r), err);
break;
}
The SSL context (ctx) is valid to begin with.
I tried looking up an explanation of the error but did not find it. Nor did I find a similar issue that would resolve it. Can anyone help me understand what I can do to further debug this ? Or if they have a solution ?
Openssl version 1.0.2g
openssl
asked Nov 21 at 2:35
PeterJ
54
The server and the client can go thru the same code. There are no separate programs for the 2.
– PeterJ
Nov 21 at 4:52
Perhaps SSL_accept() fails because it is non-blocking and does not wait for an incoming SSL_connect() from a client ? I will see what SSL_get_error() is returned by SSL_accept(). In the meantine, how can I make it blocking ?
– PeterJ
Nov 21 at 5:17
So SSL_accept() returned error:00000002 which is SSL_ERROR_WANT_READ. My socket that I am trying to write to is non-blocking. So when I do a SSL_set_fd(ctx, fd) the SSL ctx is non-blocking as well.
– PeterJ
Nov 21 at 5:46
add a comment |
0
0
0
I edited my code and this is what it looks like now. The server is trying to write some bytes on the socket.
int r;
FILE *fp;
fp = stderr;
const SSL_METHOD *method;
method = SSLv23_server_method();
ERR_clear_error();
if ( !ctx)
{
ctx = SSL_CTX_new(method);
if (!ctx) {
return 0;
}
SSL_CTX_set_ecdh_auto(ctx, 1);
if (SSL_CTX_use_certificate_file(ctx, "/home/cert.pem", SSL_FILETYPE_PEM) <= 0) {
ERR_print_errors_fp(fp);
}
if (SSL_CTX_use_PrivateKey_file(ctx, "/home/key.pem", SSL_FILETYPE_PEM) <= 0 ) {
ERR_print_errors_fp(fp);
}
}
if (!ctx) {
return;
}
SSL *ssl;
ssl = SSL_new(ctx);
SSL_set_fd(ssl, fd);
ERR_clear_error();
if (SSL_accept(ssl) <= 0) {
ERR_print_errors_fp(fp);
}
int rce = 0;
ERR_clear_error();
char *buffer = (char *) malloc(iova.iov_len);
memcpy(buffer, iova.iov_base, iova.iov_len);
r = SSL_write(ssl, buffer, (int)iova.iov_len);
// check how many bytes were written
if ( r <= 0 )
{
ERR_print_errors_fp(fp);
int err = errno;
switch(SSL_get_error(ssl,r)){
case SSL_ERROR_NONE:
continue;
case SSL_ERROR_ZERO_RETURN:
syslog(LOG_INFO, "SSL read encountered an error %d. Peer disconnected.", SSL_ERROR_ZERO_RETURN);
break;
case SSL_RECEIVED_SHUTDOWN:
syslog(LOG_INFO, "SSL read encountered an error %d. Shutdown.", SSL_RECEIVED_SHUTDOWN);
break;
case SSL_ERROR_SYSCALL:
syslog(LOG_INFO, "SSL write encountered an error %d and %lu. SYSCALL", SSL_get_error(ssl,r), ERR_get_error());
break;
default:
syslog(LOG_INFO, "SSL write encountered an error %d and %d. Quitting", SSL_get_error(ssl,r), err);
break;
}
Couple issues that I could not figure out -
SSL_accept() fails
SSL_write() then fails with SSL_RECEIVED_SHUTDOWN and err string =
error:00000002:lib(0):func(0):system lib
What am I doing wrong here with SSL_accept and SSL_write() ?
I am trying to use Openssl to do SSL_write() and I get the following error during SSL_write(). The server is trying to write some bytes to the socket connection fd -
error:140D0114:SSL routines:SSL_write:uninitialized:ssl_lib.c:1039:
Error: error:00000005:lib(0):func(0):DH lib
Here is my code
SSL *ssl;
if ( !ctx )
return 0;
ssl = SSL_new(ctx);
//SSL_set_fd(ssl, fd);
BIO *sbio = NULL;
sbio = BIO_new_socket(fd, BIO_NOCLOSE);
SSL_set_bio(ssl, sbio, sbio);
ERR_clear_error();
FILE *fp;
fp = stderr;
r = SSL_write(ssl, buffer, (len);
if ( r <= 0 )
{
ERR_print_errors_fp(fp);
switch(SSL_get_error(ssl,r)){
case SSL_ERROR_NONE:
syslog(LOG_INFO, "No real error. Continue.");
continue;
case SSL_ERROR_ZERO_RETURN:
syslog(LOG_INFO, "SSL read encountered an error %d. Peer disconnected.", SSL_ERROR_ZERO_RETURN);
break;
case SSL_RECEIVED_SHUTDOWN:
syslog(LOG_INFO, "SSL read encountered an error %d. Shutdown.", SSL_RECEIVED_SHUTDOWN);
break;
case SSL_ERROR_SYSCALL:
syslog(LOG_INFO, "SSL write encountered an error %d and %lu. SYSCALL", SSL_get_error(ssl,r), ERR_get_error());
break;
default:
syslog(LOG_INFO, "SSL write encountered an error %d and %d. Quitting", SSL_get_error(ssl,r), err);
break;
}
The SSL context (ctx) is valid to begin with.
I tried looking up an explanation of the error but did not find it. Nor did I find a similar issue that would resolve it. Can anyone help me understand what I can do to further debug this ? Or if they have a solution ?
Openssl version 1.0.2g
openssl
asked Nov 21 at 2:35
PeterJ
54
I edited my code and this is what it looks like now. The server is trying to write some bytes on the socket.
int r;
FILE *fp;
fp = stderr;
const SSL_METHOD *method;
method = SSLv23_server_method();
ERR_clear_error();
if ( !ctx)
{
ctx = SSL_CTX_new(method);
if (!ctx) {
return 0;
}
SSL_CTX_set_ecdh_auto(ctx, 1);
if (SSL_CTX_use_certificate_file(ctx, "/home/cert.pem", SSL_FILETYPE_PEM) <= 0) {
ERR_print_errors_fp(fp);
}
if (SSL_CTX_use_PrivateKey_file(ctx, "/home/key.pem", SSL_FILETYPE_PEM) <= 0 ) {
ERR_print_errors_fp(fp);
}
}
if (!ctx) {
return;
}
SSL *ssl;
ssl = SSL_new(ctx);
SSL_set_fd(ssl, fd);
ERR_clear_error();
if (SSL_accept(ssl) <= 0) {
ERR_print_errors_fp(fp);
}
int rce = 0;
ERR_clear_error();
char *buffer = (char *) malloc(iova.iov_len);
memcpy(buffer, iova.iov_base, iova.iov_len);
r = SSL_write(ssl, buffer, (int)iova.iov_len);
// check how many bytes were written
if ( r <= 0 )
{
ERR_print_errors_fp(fp);
int err = errno;
switch(SSL_get_error(ssl,r)){
case SSL_ERROR_NONE:
continue;
case SSL_ERROR_ZERO_RETURN:
syslog(LOG_INFO, "SSL read encountered an error %d. Peer disconnected.", SSL_ERROR_ZERO_RETURN);
break;
case SSL_RECEIVED_SHUTDOWN:
syslog(LOG_INFO, "SSL read encountered an error %d. Shutdown.", SSL_RECEIVED_SHUTDOWN);
break;
case SSL_ERROR_SYSCALL:
syslog(LOG_INFO, "SSL write encountered an error %d and %lu. SYSCALL", SSL_get_error(ssl,r), ERR_get_error());
break;
default:
syslog(LOG_INFO, "SSL write encountered an error %d and %d. Quitting", SSL_get_error(ssl,r), err);
break;
}
Couple issues that I could not figure out -
SSL_accept() fails
SSL_write() then fails with SSL_RECEIVED_SHUTDOWN and err string =
error:00000002:lib(0):func(0):system lib
What am I doing wrong here with SSL_accept and SSL_write() ?
I am trying to use Openssl to do SSL_write() and I get the following error during SSL_write(). The server is trying to write some bytes to the socket connection fd -
error:140D0114:SSL routines:SSL_write:uninitialized:ssl_lib.c:1039:
Error: error:00000005:lib(0):func(0):DH lib
Here is my code
SSL *ssl;
if ( !ctx )
return 0;
ssl = SSL_new(ctx);
//SSL_set_fd(ssl, fd);
BIO *sbio = NULL;
sbio = BIO_new_socket(fd, BIO_NOCLOSE);
SSL_set_bio(ssl, sbio, sbio);
ERR_clear_error();
FILE *fp;
fp = stderr;
r = SSL_write(ssl, buffer, (len);
if ( r <= 0 )
{
ERR_print_errors_fp(fp);
switch(SSL_get_error(ssl,r)){
case SSL_ERROR_NONE:
syslog(LOG_INFO, "No real error. Continue.");
continue;
case SSL_ERROR_ZERO_RETURN:
syslog(LOG_INFO, "SSL read encountered an error %d. Peer disconnected.", SSL_ERROR_ZERO_RETURN);
break;
case SSL_RECEIVED_SHUTDOWN:
syslog(LOG_INFO, "SSL read encountered an error %d. Shutdown.", SSL_RECEIVED_SHUTDOWN);
break;
case SSL_ERROR_SYSCALL:
syslog(LOG_INFO, "SSL write encountered an error %d and %lu. SYSCALL", SSL_get_error(ssl,r), ERR_get_error());
break;
default:
syslog(LOG_INFO, "SSL write encountered an error %d and %d. Quitting", SSL_get_error(ssl,r), err);
break;
}
The SSL context (ctx) is valid to begin with.
I tried looking up an explanation of the error but did not find it. Nor did I find a similar issue that would resolve it. Can anyone help me understand what I can do to further debug this ? Or if they have a solution ?
Openssl version 1.0.2g
openssl
openssl
asked Nov 21 at 2:35
PeterJ
54
asked Nov 21 at 2:35
PeterJ
54
edited Nov 21 at 4:47
asked Nov 21 at 2:35
PeterJ
54
asked Nov 21 at 2:35
PeterJ
54
asked Nov 21 at 2:35
PeterJ
54
54
The server and the client can go thru the same code. There are no separate programs for the 2.
– PeterJ
Nov 21 at 4:52
Perhaps SSL_accept() fails because it is non-blocking and does not wait for an incoming SSL_connect() from a client ? I will see what SSL_get_error() is returned by SSL_accept(). In the meantine, how can I make it blocking ?
– PeterJ
Nov 21 at 5:17
So SSL_accept() returned error:00000002 which is SSL_ERROR_WANT_READ. My socket that I am trying to write to is non-blocking. So when I do a SSL_set_fd(ctx, fd) the SSL ctx is non-blocking as well.
– PeterJ
Nov 21 at 5:46
add a comment |
The server and the client can go thru the same code. There are no separate programs for the 2.
– PeterJ
Nov 21 at 4:52
Perhaps SSL_accept() fails because it is non-blocking and does not wait for an incoming SSL_connect() from a client ? I will see what SSL_get_error() is returned by SSL_accept(). In the meantine, how can I make it blocking ?
– PeterJ
Nov 21 at 5:17
So SSL_accept() returned error:00000002 which is SSL_ERROR_WANT_READ. My socket that I am trying to write to is non-blocking. So when I do a SSL_set_fd(ctx, fd) the SSL ctx is non-blocking as well.
– PeterJ
Nov 21 at 5:46
The server and the client can go thru the same code. There are no separate programs for the 2.
– PeterJ
Nov 21 at 4:52
The server and the client can go thru the same code. There are no separate programs for the 2.
– PeterJ
Nov 21 at 4:52
Perhaps SSL_accept() fails because it is non-blocking and does not wait for an incoming SSL_connect() from a client ? I will see what SSL_get_error() is returned by SSL_accept(). In the meantine, how can I make it blocking ?
– PeterJ
Nov 21 at 5:17
Perhaps SSL_accept() fails because it is non-blocking and does not wait for an incoming SSL_connect() from a client ? I will see what SSL_get_error() is returned by SSL_accept(). In the meantine, how can I make it blocking ?
– PeterJ
Nov 21 at 5:17
So SSL_accept() returned error:00000002 which is SSL_ERROR_WANT_READ. My socket that I am trying to write to is non-blocking. So when I do a SSL_set_fd(ctx, fd) the SSL ctx is non-blocking as well.
– PeterJ
Nov 21 at 5:46
So SSL_accept() returned error:00000002 which is SSL_ERROR_WANT_READ. My socket that I am trying to write to is non-blocking. So when I do a SSL_set_fd(ctx, fd) the SSL ctx is non-blocking as well.
– PeterJ
Nov 21 at 5:46
add a comment |
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The server and the client can go thru the same code. There are no separate programs for the 2.
– PeterJ
Nov 21 at 4:52
Perhaps SSL_accept() fails because it is non-blocking and does not wait for an incoming SSL_connect() from a client ? I will see what SSL_get_error() is returned by SSL_accept(). In the meantine, how can I make it blocking ?
– PeterJ
Nov 21 at 5:17
So SSL_accept() returned error:00000002 which is SSL_ERROR_WANT_READ. My socket that I am trying to write to is non-blocking. So when I do a SSL_set_fd(ctx, fd) the SSL ctx is non-blocking as well.
– PeterJ
Nov 21 at 5:46