/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Virtual Network Interface Card (VNIC)
*/
#include <sys/conf.h>
#include <sys/modctl.h>
#include <sys/vnic.h>
#include <sys/vnic_impl.h>
#include <sys/policy.h>
/* module description */
#define VNIC_LINKINFO "Virtual NIC"
/* device info ptr, only one for instance 0 */
static dev_info_t *vnic_dip = NULL;
static int vnic_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **);
static int vnic_attach(dev_info_t *, ddi_attach_cmd_t);
static int vnic_detach(dev_info_t *, ddi_detach_cmd_t);
static int vnic_ioc_create(void *, intptr_t, int, cred_t *, int *);
static int vnic_ioc_delete(void *, intptr_t, int, cred_t *, int *);
static int vnic_ioc_info(void *, intptr_t, int, cred_t *, int *);
static int vnic_ioc_modify(void *, intptr_t, int, cred_t *, int *);
static dld_ioc_info_t vnic_ioc_list[] = {
{VNIC_IOC_CREATE, DLDCOPYINOUT, sizeof (vnic_ioc_create_t),
vnic_ioc_create, secpolicy_dl_config},
{VNIC_IOC_DELETE, DLDCOPYIN, sizeof (vnic_ioc_delete_t),
vnic_ioc_delete, secpolicy_dl_config},
{VNIC_IOC_INFO, DLDCOPYINOUT, sizeof (vnic_ioc_info_t),
vnic_ioc_info, NULL},
{VNIC_IOC_MODIFY, DLDCOPYIN, sizeof (vnic_ioc_modify_t),
vnic_ioc_modify, secpolicy_dl_config}
};
DDI_DEFINE_STREAM_OPS(vnic_dev_ops, nulldev, nulldev, vnic_attach, vnic_detach,
nodev, vnic_getinfo, D_MP, NULL, ddi_quiesce_not_supported);
static struct modldrv vnic_modldrv = {
&mod_driverops, /* Type of module. This one is a driver */
VNIC_LINKINFO, /* short description */
&vnic_dev_ops /* driver specific ops */
};
static struct modlinkage modlinkage = {
MODREV_1, &vnic_modldrv, NULL
};
int
_init(void)
{
int status;
mac_init_ops(&vnic_dev_ops, "vnic");
status = mod_install(&modlinkage);
if (status != DDI_SUCCESS)
mac_fini_ops(&vnic_dev_ops);
return (status);
}
int
_fini(void)
{
int status;
status = mod_remove(&modlinkage);
if (status == DDI_SUCCESS)
mac_fini_ops(&vnic_dev_ops);
return (status);
}
int
_info(struct modinfo *modinfop)
{
return (mod_info(&modlinkage, modinfop));
}
static void
vnic_init(void)
{
vnic_dev_init();
}
static void
vnic_fini(void)
{
vnic_dev_fini();
}
dev_info_t *
vnic_get_dip(void)
{
return (vnic_dip);
}
/*ARGSUSED*/
static int
vnic_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg,
void **result)
{
switch (infocmd) {
case DDI_INFO_DEVT2DEVINFO:
*result = vnic_dip;
return (DDI_SUCCESS);
case DDI_INFO_DEVT2INSTANCE:
*result = NULL;
return (DDI_SUCCESS);
}
return (DDI_FAILURE);
}
static int
vnic_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
{
switch (cmd) {
case DDI_ATTACH:
if (ddi_get_instance(dip) != 0) {
/* we only allow instance 0 to attach */
return (DDI_FAILURE);
}
if (dld_ioc_register(VNIC_IOC, vnic_ioc_list,
DLDIOCCNT(vnic_ioc_list)) != 0)
return (DDI_FAILURE);
vnic_dip = dip;
vnic_init();
return (DDI_SUCCESS);
case DDI_RESUME:
return (DDI_SUCCESS);
default:
return (DDI_FAILURE);
}
}
/*ARGSUSED*/
static int
vnic_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
{
switch (cmd) {
case DDI_DETACH:
/*
* Allow the VNIC instance to be detached only if there
* are not VNICs configured.
*/
if (vnic_dev_count() > 0)
return (DDI_FAILURE);
vnic_dip = NULL;
vnic_fini();
dld_ioc_unregister(VNIC_IOC);
return (DDI_SUCCESS);
case DDI_SUSPEND:
return (DDI_SUCCESS);
default:
return (DDI_FAILURE);
}
}
/*
* Process a VNICIOC_CREATE request.
*/
/* ARGSUSED */
static int
vnic_ioc_create(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
{
vnic_ioc_create_t *create_arg = karg;
int err = 0, mac_len = 0, mac_slot;
uchar_t mac_addr[MAXMACADDRLEN];
uint_t mac_prefix_len;
vnic_mac_addr_type_t mac_addr_type;
vnic_ioc_diag_t diag = VNIC_IOC_DIAG_NONE;
boolean_t is_anchor = create_arg->vc_flags & VNIC_IOC_CREATE_ANCHOR;
/* MAC address */
mac_addr_type = create_arg->vc_mac_addr_type;
if (is_anchor)
goto create;
switch (mac_addr_type) {
case VNIC_MAC_ADDR_TYPE_FIXED:
case VNIC_MAC_ADDR_TYPE_VRID:
mac_len = create_arg->vc_mac_len;
/*
* Sanity check the MAC address length. vnic_dev_create()
* will perform additional checks to ensure that the
* address is a valid unicast address of the appropriate
* length.
*/
if (mac_len == 0 || mac_len > MAXMACADDRLEN) {
err = EINVAL;
diag = VNIC_IOC_DIAG_MACADDRLEN_INVALID;
goto bail;
}
bcopy(create_arg->vc_mac_addr, mac_addr, MAXMACADDRLEN);
break;
case VNIC_MAC_ADDR_TYPE_FACTORY:
mac_slot = create_arg->vc_mac_slot;
/* sanity check the specified slot number */
if (mac_slot < 0 && mac_slot != -1) {
err = EINVAL;
diag = VNIC_IOC_DIAG_MACFACTORYSLOTINVALID;
goto bail;
}
break;
case VNIC_MAC_ADDR_TYPE_AUTO:
mac_slot = -1;
/* FALLTHROUGH */
case VNIC_MAC_ADDR_TYPE_RANDOM:
mac_prefix_len = create_arg->vc_mac_prefix_len;
if (mac_prefix_len > MAXMACADDRLEN) {
err = EINVAL;
diag = VNIC_IOC_DIAG_MACPREFIXLEN_INVALID;
goto bail;
}
mac_len = create_arg->vc_mac_len;
if (mac_len > MAXMACADDRLEN) {
err = EINVAL;
diag = VNIC_IOC_DIAG_MACADDRLEN_INVALID;
goto bail;
}
bcopy(create_arg->vc_mac_addr, mac_addr, MAXMACADDRLEN);
break;
case VNIC_MAC_ADDR_TYPE_PRIMARY:
/*
* We will get the primary address when we add this
* client
*/
break;
default:
err = ENOTSUP;
goto bail;
}
create:
err = vnic_dev_create(create_arg->vc_vnic_id, create_arg->vc_link_id,
&mac_addr_type, &mac_len, mac_addr, &mac_slot, mac_prefix_len,
create_arg->vc_vid, create_arg->vc_vrid, create_arg->vc_af,
&create_arg->vc_resource_props, create_arg->vc_flags, &diag,
cred);
if (err != 0)
goto bail;
create_arg->vc_mac_addr_type = mac_addr_type;
if (is_anchor)
goto bail;
switch (mac_addr_type) {
case VNIC_MAC_ADDR_TYPE_FACTORY:
create_arg->vc_mac_slot = mac_slot;
break;
case VNIC_MAC_ADDR_TYPE_RANDOM:
bcopy(mac_addr, create_arg->vc_mac_addr, MAXMACADDRLEN);
create_arg->vc_mac_len = mac_len;
break;
}
bail:
create_arg->vc_diag = diag;
create_arg->vc_status = err;
return (err);
}
/* ARGSUSED */
static int
vnic_ioc_modify(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
{
vnic_ioc_modify_t *modify_arg = karg;
return (vnic_dev_modify(modify_arg->vm_vnic_id,
modify_arg->vm_modify_mask, modify_arg->vm_mac_addr_type,
modify_arg->vm_mac_len, modify_arg->vm_mac_addr,
modify_arg->vm_mac_slot, &modify_arg->vm_resource_props));
}
/* ARGSUSED */
static int
vnic_ioc_delete(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
{
vnic_ioc_delete_t *delete_arg = karg;
return (vnic_dev_delete(delete_arg->vd_vnic_id, 0, cred));
}
/* ARGSUSED */
static int
vnic_ioc_info(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp)
{
vnic_ioc_info_t *info_arg = karg;
return (vnic_info(&info_arg->vi_info, cred));
}