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In the words of the submitter:

Browse Source 
----
I've worked to enhance the connect() patches.

I've just tested this with the Linux JDK appletviewer on an applet
that does a lot of connects, and it works as well as during my
previous tests.

The connect() patch is now a merge between my older patch and the
OpenBSD stuff. It ensures that any async error is returned by
connect() instead of getsockopt(SOL_SOCKET, SO_ERROR) as reasonnable
systems do.

There are also minor patches to implement IPPROTO_TCP for
get/setsocktopt(). These are also tested (with Linux Apache).
----

I would appreciate any feedback regarding these changes, as they'd
be very useful in 2.2.6.

Submitted by:	pb@fasterix.freenix.org (Pierre Beyssac)
This commit is contained in:
Mike Smith 1998-02-07 02:13:27 +00:00
parent ca6f868824
commit dad3b88ae3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=33148
2 changed files with 124 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
sys/compat/linux/linux_socket.c
View File

@ -25,7 +25,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: linux_socket.c,v 1.10 1997/12/14 03:17:54 msmith Exp $
* $Id: linux_socket.c,v 1.11 1997/12/16 17:40:11 eivind Exp $
*/
/* XXX we use functions that might not exist. */
@ -39,6 +39,7 @@
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/sysproto.h>
#include <sys/fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
@ -348,7 +349,58 @@ linux_connect(struct proc *p, struct linux_connect_args *args)
bsd_args.s = linux_args.s;
bsd_args.name = (caddr_t)linux_args.name;
bsd_args.namelen = linux_args.namelen;
return connect(p, &bsd_args);
error = connect(p, &bsd_args);
if (error == EISCONN) {
/*
* Linux doesn't return EISCONN the first time it occurs,
* when on a non-blocking socket. Instead it returns the
* error getsockopt(SOL_SOCKET, SO_ERROR) would return on BSD.
*/
struct fcntl_args /* {
int fd;
int cmd;
int arg;
} */ bsd_fcntl_args;
struct getsockopt_args /* {
int s;
int level;
int name;
caddr_t val;
int *avalsize;
} */ bsd_getsockopt_args;
void *status, *statusl;
int stat, statl = sizeof stat;
caddr_t sg;
/* Check for non-blocking */
bsd_fcntl_args.fd = linux_args.s;
bsd_fcntl_args.cmd = F_GETFL;
bsd_fcntl_args.arg = 0;
error = fcntl(p, &bsd_fcntl_args);
if (error == 0 && (p->p_retval[0] & O_NONBLOCK)) {
sg = stackgap_init();
status = stackgap_alloc(&sg, sizeof stat);
statusl = stackgap_alloc(&sg, sizeof statusl);
if ((error = copyout(&statl, statusl, sizeof statl)))
return error;
bsd_getsockopt_args.s = linux_args.s;
bsd_getsockopt_args.level = SOL_SOCKET;
bsd_getsockopt_args.name = SO_ERROR;
bsd_getsockopt_args.val = status;
bsd_getsockopt_args.avalsize = statusl;
error = getsockopt(p, &bsd_getsockopt_args);
if (error)
return error;
if ((error = copyin(status, &stat, sizeof stat)))
return error;
p->p_retval[0] = stat;
return 0;
}
}
return error;
}
struct linux_listen_args {
@ -661,6 +713,10 @@ linux_setsockopt(struct proc *p, struct linux_setsockopt_args *args)
case IPPROTO_IP:
name = linux_to_bsd_ip_sockopt(linux_args.optname);
break;
case IPPROTO_TCP:
/* Linux TCP option values match BSD's */
name = linux_args.optname;
break;
default:
return EINVAL;
}
@ -704,6 +760,10 @@ linux_getsockopt(struct proc *p, struct linux_getsockopt_args *args)
case IPPROTO_IP:
name = linux_to_bsd_ip_sockopt(linux_args.optname);
break;
case IPPROTO_TCP:
/* Linux TCP option values match BSD's */
name = linux_args.optname;
break;
default:
return EINVAL;
}

64
sys/i386/linux/linux_socket.c
View File

@ -25,7 +25,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: linux_socket.c,v 1.10 1997/12/14 03:17:54 msmith Exp $
* $Id: linux_socket.c,v 1.11 1997/12/16 17:40:11 eivind Exp $
*/
/* XXX we use functions that might not exist. */
@ -39,6 +39,7 @@
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/sysproto.h>
#include <sys/fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
@ -348,7 +349,58 @@ linux_connect(struct proc *p, struct linux_connect_args *args)
bsd_args.s = linux_args.s;
bsd_args.name = (caddr_t)linux_args.name;
bsd_args.namelen = linux_args.namelen;
return connect(p, &bsd_args);
error = connect(p, &bsd_args);
if (error == EISCONN) {
/*
* Linux doesn't return EISCONN the first time it occurs,
* when on a non-blocking socket. Instead it returns the
* error getsockopt(SOL_SOCKET, SO_ERROR) would return on BSD.
*/
struct fcntl_args /* {
int fd;
int cmd;
int arg;
} */ bsd_fcntl_args;
struct getsockopt_args /* {
int s;
int level;
int name;
caddr_t val;
int *avalsize;
} */ bsd_getsockopt_args;
void *status, *statusl;
int stat, statl = sizeof stat;
caddr_t sg;
/* Check for non-blocking */
bsd_fcntl_args.fd = linux_args.s;
bsd_fcntl_args.cmd = F_GETFL;
bsd_fcntl_args.arg = 0;
error = fcntl(p, &bsd_fcntl_args);
if (error == 0 && (p->p_retval[0] & O_NONBLOCK)) {
sg = stackgap_init();
status = stackgap_alloc(&sg, sizeof stat);
statusl = stackgap_alloc(&sg, sizeof statusl);
if ((error = copyout(&statl, statusl, sizeof statl)))
return error;
bsd_getsockopt_args.s = linux_args.s;
bsd_getsockopt_args.level = SOL_SOCKET;
bsd_getsockopt_args.name = SO_ERROR;
bsd_getsockopt_args.val = status;
bsd_getsockopt_args.avalsize = statusl;
error = getsockopt(p, &bsd_getsockopt_args);
if (error)
return error;
if ((error = copyin(status, &stat, sizeof stat)))
return error;
p->p_retval[0] = stat;
return 0;
}
}
return error;
}
struct linux_listen_args {
@ -661,6 +713,10 @@ linux_setsockopt(struct proc *p, struct linux_setsockopt_args *args)
case IPPROTO_IP:
name = linux_to_bsd_ip_sockopt(linux_args.optname);
break;
case IPPROTO_TCP:
/* Linux TCP option values match BSD's */
name = linux_args.optname;
break;
default:
return EINVAL;
}
@ -704,6 +760,10 @@ linux_getsockopt(struct proc *p, struct linux_getsockopt_args *args)
case IPPROTO_IP:
name = linux_to_bsd_ip_sockopt(linux_args.optname);
break;
case IPPROTO_TCP:
/* Linux TCP option values match BSD's */
name = linux_args.optname;
break;
default:
return EINVAL;
}