[patch] VMnet/VMware workstation 4.0

Lucas Correia Villa Real (lucasvr@gobolinux.org)
Thu, 17 Apr 2003 13:48:56 -0300


Is there a "correct" place at vmware.com to send these patches? I tryied
sending it to feature-request@vmware.com, but I got no response from them.

Anyway, below follows the patch providing support to devfs on the vmnet driver
for vmware workstation 4.0.

Lucas

--- driver.c.orig 2003-04-17 11:43:48.000000000 -0300
+++ driver.c 2003-04-17 11:55:14.000000000 -0300
@@ -1,5 +1,9 @@
/* **********************************************************
* Copyright 1998 VMware, Inc. All rights reserved. -- VMware Confidential
+ *
+ * Changes:
+ * 17-04-2003 - Lucas Correia Villa Real <lucasvr@gobolinux.org>
+ * Added support to DevFS.
* **********************************************************/
#define FILECODEINT 330

@@ -40,6 +44,7 @@
#define __KERNEL_SYSCALLS__
#include <asm/io.h>

+#include <linux/devfs_fs_kernel.h>
#include <linux/proc_fs.h>
#include <linux/file.h>

@@ -63,6 +68,10 @@
extern int VNetNetIf_Create(char *devName, VNetPort **ret, int hubNum);
extern int VNetBridge_Create(char *devName, VNetPort **ret);

+/*
+ * DevFS handle
+ */
+static devfs_handle_t devfs_handle;

/*
* Structure for cycle detection of host interfaces.
@@ -191,7 +200,7 @@
int
VNetRegister(int value)
{
- LOG(0, (KERN_WARNING "/dev/vmnet: VNetRegister called\n"));
+ LOG(0, (KERN_WARNING "vmnet: VNetRegister called\n"));
return 0;
}

@@ -277,7 +286,8 @@
int
init_module(void)
{
- int retval;
+ int retval, minor, devices;
+ char name[8];

/*
* First initialize everything, and as a last step register
@@ -287,7 +297,7 @@

retval = VNetProc_Init();
if (retval) {
- LOG(0, (KERN_NOTICE "/dev/vmnet: could not register proc fs\n"));
+ LOG(0, (KERN_NOTICE "vmnet: could not register proc fs\n"));
return -ENOENT;
}

@@ -303,14 +313,36 @@
vnetFileOps.open = VNetFileOpOpen;
vnetFileOps.release = VNetFileOpClose;

+#ifdef CONFIG_DEVFS_FS
+ retval = devfs_register_chrdev(VNET_MAJOR_NUMBER, "vmnet", &vnetFileOps);
+ if (retval < 0) {
+ LOG(0, (KERN_NOTICE "vmnet: could not register major device %d\n",
+ VNET_MAJOR_NUMBER));
+ return -ENOENT;
+ }
+
+ devfs_handle = devfs_mk_dir(NULL, "vmware", NULL);
+ if (! devfs_handle)
+ printk(KERN_ERR "vmnet: could not create 'vmware' device subdir\n");
+
+ devices = 10;
+ for (minor=0; minor<devices; minor++) {
+ snprintf (name, sizeof (name), "vmnet%d", minor);
+ devfs_register(devfs_handle, name,
+ DEVFS_FL_DEFAULT, VNET_MAJOR_NUMBER, minor,
+ S_IFCHR | S_IRUGO | S_IWUGO,
+ &vnetFileOps, NULL);
+ }
+#else
retval = register_chrdev(VNET_MAJOR_NUMBER, "vmnet", &vnetFileOps);
if (retval) {
- LOG(0, (KERN_NOTICE "/dev/vmnet: could not register major device %d\n",
+ LOG(0, (KERN_NOTICE "vmnet: could not register major device %d\n",
VNET_MAJOR_NUMBER));
VNetProc_Cleanup();
return -ENOENT;
}
-
+#endif /* CONFIG_DEVFS_FS */
+
#ifndef KERNEL_2_1
register_symtab(&vnet_syms);
#endif
@@ -340,9 +372,14 @@
{
int retval;

+#ifdef CONFIG_DEVFS_FS
+ devfs_unregister(devfs_handle);
+ retval = devfs_unregister_chrdev(VNET_MAJOR_NUMBER, "vmnet");
+#else
retval = unregister_chrdev(VNET_MAJOR_NUMBER, "vmnet");
+#endif
if (retval != 0 ) {
- LOG(0, (KERN_WARNING "/dev/vmnet: could not unregister major device
%d\n",
+ LOG(0, (KERN_WARNING "vmnet: could not unregister major device %d\n",
VNET_MAJOR_NUMBER));
}
VNetProc_Cleanup();
@@ -403,7 +440,7 @@
int hubNum;
int retval;

- LOG(1, (KERN_DEBUG "/dev/vmnet: open called by PID %d (%s)\n",
+ LOG(1, (KERN_DEBUG "vmnet: open called by PID %d (%s)\n",
current->pid, current->comm));

/*
@@ -449,7 +486,7 @@

filp->private_data = port;

- LOG(1, (KERN_DEBUG "/dev/vmnet: port on hub %d successfully opened\n",
hubNum));
+ LOG(1, (KERN_DEBUG "vmnet: port on hub %d successfully opened\n",
hubNum));

compat_mod_inc_refcount;

@@ -485,7 +522,7 @@
VNetJack *peer;

if (!port) {
- LOG(1, (KERN_DEBUG "/dev/vmnet: bad file pointer on close\n"));
+ LOG(1, (KERN_DEBUG "vmnet: bad file pointer on close\n"));
#ifdef KERNEL_2_1
return -EBADF;
#else
@@ -544,7 +581,7 @@
VNetPort *port = (VNetPort*)filp->private_data;

if (!port) {
- LOG(1, (KERN_DEBUG "/dev/vmnet: bad file pointer on read\n"));
+ LOG(1, (KERN_DEBUG "vmnet: bad file pointer on read\n"));
return -EBADF;
}

@@ -588,7 +625,7 @@
VNetPort *port = (VNetPort*)filp->private_data;

if (!port) {
- LOG(1, (KERN_DEBUG "/dev/vmnet: bad file pointer on write\n"));
+ LOG(1, (KERN_DEBUG "vmnet: bad file pointer on write\n"));
return -EBADF;
}

@@ -624,7 +661,7 @@
VNetPort *port = (VNetPort*)filp->private_data;

if (!port) {
- LOG(1, (KERN_DEBUG "/dev/vmnet: bad file pointer on poll\n"));
+ LOG(1, (KERN_DEBUG "vmnet: bad file pointer on poll\n"));
return -EBADF;
}

@@ -646,7 +683,7 @@
VNetPort *port = (VNetPort*)filp->private_data;

if (!port) {
- LOG(1, (KERN_DEBUG "/dev/vmnet: bad file pointer on select\n"));
+ LOG(1, (KERN_DEBUG "vmnet: bad file pointer on select\n"));
return -EBADF;
}

@@ -723,7 +760,7 @@
VNet_SetMacAddrIOCTL macAddr;

if (!port) {
- LOG(1, (KERN_DEBUG "/dev/vmnet: bad file pointer on ioctl\n"));
+ LOG(1, (KERN_DEBUG "vmnet: bad file pointer on ioctl\n"));
return -EBADF;
}

@@ -773,7 +810,7 @@
VNetFree(&new->jack);
if (retval2) {
// assert xxx redo this
- LOG(1, (KERN_NOTICE "/dev/vmnet: cycle on connect failure\n"));
+ LOG(1, (KERN_NOTICE "vmnet: cycle on connect failure\n"));
return -EBADF;
}
return retval;

-
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