/* * 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 #include #include #include #include /* 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: 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_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)); }