1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * Virtual Network Interface Card (VNIC) 28 */ 29 30 #include <sys/conf.h> 31 #include <sys/modctl.h> 32 #include <sys/vnic.h> 33 #include <sys/vnic_impl.h> 34 #include <sys/policy.h> 35 36 /* module description */ 37 #define VNIC_LINKINFO "Virtual NIC" 38 39 /* device info ptr, only one for instance 0 */ 40 static dev_info_t *vnic_dip = NULL; 41 static int vnic_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); 42 static int vnic_attach(dev_info_t *, ddi_attach_cmd_t); 43 static int vnic_detach(dev_info_t *, ddi_detach_cmd_t); 44 45 static int vnic_ioc_create(void *, intptr_t, int, cred_t *, int *); 46 static int vnic_ioc_delete(void *, intptr_t, int, cred_t *, int *); 47 static int vnic_ioc_info(void *, intptr_t, int, cred_t *, int *); 48 static int vnic_ioc_modify(void *, intptr_t, int, cred_t *, int *); 49 50 static dld_ioc_info_t vnic_ioc_list[] = { 51 {VNIC_IOC_CREATE, DLDCOPYINOUT, sizeof (vnic_ioc_create_t), 52 vnic_ioc_create, secpolicy_dl_config}, 53 {VNIC_IOC_DELETE, DLDCOPYIN, sizeof (vnic_ioc_delete_t), 54 vnic_ioc_delete, secpolicy_dl_config}, 55 {VNIC_IOC_INFO, DLDCOPYINOUT, sizeof (vnic_ioc_info_t), 56 vnic_ioc_info, NULL}, 57 {VNIC_IOC_MODIFY, DLDCOPYIN, sizeof (vnic_ioc_modify_t), 58 vnic_ioc_modify, secpolicy_dl_config} 59 }; 60 61 DDI_DEFINE_STREAM_OPS(vnic_dev_ops, nulldev, nulldev, vnic_attach, vnic_detach, 62 nodev, vnic_getinfo, D_MP, NULL, ddi_quiesce_not_supported); 63 64 static struct modldrv vnic_modldrv = { 65 &mod_driverops, /* Type of module. This one is a driver */ 66 VNIC_LINKINFO, /* short description */ 67 &vnic_dev_ops /* driver specific ops */ 68 }; 69 70 static struct modlinkage modlinkage = { 71 MODREV_1, &vnic_modldrv, NULL 72 }; 73 74 int 75 _init(void) 76 { 77 int status; 78 79 mac_init_ops(&vnic_dev_ops, "vnic"); 80 status = mod_install(&modlinkage); 81 if (status != DDI_SUCCESS) 82 mac_fini_ops(&vnic_dev_ops); 83 84 return (status); 85 } 86 87 int 88 _fini(void) 89 { 90 int status; 91 92 status = mod_remove(&modlinkage); 93 if (status == DDI_SUCCESS) 94 mac_fini_ops(&vnic_dev_ops); 95 96 return (status); 97 } 98 99 int 100 _info(struct modinfo *modinfop) 101 { 102 return (mod_info(&modlinkage, modinfop)); 103 } 104 105 static void 106 vnic_init(void) 107 { 108 vnic_dev_init(); 109 } 110 111 static void 112 vnic_fini(void) 113 { 114 vnic_dev_fini(); 115 } 116 117 dev_info_t * 118 vnic_get_dip(void) 119 { 120 return (vnic_dip); 121 } 122 123 /*ARGSUSED*/ 124 static int 125 vnic_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, 126 void **result) 127 { 128 switch (infocmd) { 129 case DDI_INFO_DEVT2DEVINFO: 130 *result = vnic_dip; 131 return (DDI_SUCCESS); 132 case DDI_INFO_DEVT2INSTANCE: 133 *result = NULL; 134 return (DDI_SUCCESS); 135 } 136 return (DDI_FAILURE); 137 } 138 139 static int 140 vnic_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 141 { 142 switch (cmd) { 143 case DDI_ATTACH: 144 if (ddi_get_instance(dip) != 0) { 145 /* we only allow instance 0 to attach */ 146 return (DDI_FAILURE); 147 } 148 if (dld_ioc_register(VNIC_IOC, vnic_ioc_list, 149 DLDIOCCNT(vnic_ioc_list)) != 0) 150 return (DDI_FAILURE); 151 152 vnic_dip = dip; 153 vnic_init(); 154 return (DDI_SUCCESS); 155 156 case DDI_RESUME: 157 return (DDI_SUCCESS); 158 159 default: 160 return (DDI_FAILURE); 161 } 162 } 163 164 /*ARGSUSED*/ 165 static int 166 vnic_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 167 { 168 switch (cmd) { 169 case DDI_DETACH: 170 /* 171 * Allow the VNIC instance to be detached only if there 172 * are not VNICs configured. 173 */ 174 if (vnic_dev_count() > 0) 175 return (DDI_FAILURE); 176 177 vnic_dip = NULL; 178 vnic_fini(); 179 dld_ioc_unregister(VNIC_IOC); 180 return (DDI_SUCCESS); 181 182 case DDI_SUSPEND: 183 return (DDI_SUCCESS); 184 185 default: 186 return (DDI_FAILURE); 187 } 188 } 189 190 /* 191 * Process a VNICIOC_CREATE request. 192 */ 193 /* ARGSUSED */ 194 static int 195 vnic_ioc_create(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp) 196 { 197 vnic_ioc_create_t *create_arg = karg; 198 int err = 0, mac_len = 0, mac_slot; 199 uchar_t mac_addr[MAXMACADDRLEN]; 200 uint_t mac_prefix_len; 201 vnic_mac_addr_type_t mac_addr_type; 202 vnic_ioc_diag_t diag = VNIC_IOC_DIAG_NONE; 203 boolean_t is_anchor = create_arg->vc_flags & VNIC_IOC_CREATE_ANCHOR; 204 205 /* MAC address */ 206 mac_addr_type = create_arg->vc_mac_addr_type; 207 208 if (is_anchor) 209 goto create; 210 211 switch (mac_addr_type) { 212 case VNIC_MAC_ADDR_TYPE_FIXED: 213 mac_len = create_arg->vc_mac_len; 214 /* 215 * Sanity check the MAC address length. vnic_dev_create() 216 * will perform additional checks to ensure that the 217 * address is a valid unicast address of the appropriate 218 * length. 219 */ 220 if (mac_len == 0 || mac_len > MAXMACADDRLEN) { 221 err = EINVAL; 222 diag = VNIC_IOC_DIAG_MACADDRLEN_INVALID; 223 goto bail; 224 } 225 bcopy(create_arg->vc_mac_addr, mac_addr, MAXMACADDRLEN); 226 break; 227 case VNIC_MAC_ADDR_TYPE_FACTORY: 228 mac_slot = create_arg->vc_mac_slot; 229 /* sanity check the specified slot number */ 230 if (mac_slot < 0 && mac_slot != -1) { 231 err = EINVAL; 232 diag = VNIC_IOC_DIAG_MACFACTORYSLOTINVALID; 233 goto bail; 234 } 235 break; 236 case VNIC_MAC_ADDR_TYPE_AUTO: 237 mac_slot = -1; 238 /* FALLTHROUGH */ 239 case VNIC_MAC_ADDR_TYPE_RANDOM: 240 mac_prefix_len = create_arg->vc_mac_prefix_len; 241 if (mac_prefix_len > MAXMACADDRLEN) { 242 err = EINVAL; 243 diag = VNIC_IOC_DIAG_MACPREFIXLEN_INVALID; 244 goto bail; 245 } 246 mac_len = create_arg->vc_mac_len; 247 if (mac_len > MAXMACADDRLEN) { 248 err = EINVAL; 249 diag = VNIC_IOC_DIAG_MACADDRLEN_INVALID; 250 goto bail; 251 } 252 bcopy(create_arg->vc_mac_addr, mac_addr, MAXMACADDRLEN); 253 break; 254 case VNIC_MAC_ADDR_TYPE_PRIMARY: 255 /* 256 * We will get the primary address when we add this 257 * client 258 */ 259 break; 260 default: 261 err = ENOTSUP; 262 goto bail; 263 } 264 265 create: 266 err = vnic_dev_create(create_arg->vc_vnic_id, create_arg->vc_link_id, 267 &mac_addr_type, &mac_len, mac_addr, &mac_slot, mac_prefix_len, 268 create_arg->vc_vid, &create_arg->vc_resource_props, 269 create_arg->vc_flags, &diag, cred); 270 if (err != 0) 271 goto bail; 272 273 create_arg->vc_mac_addr_type = mac_addr_type; 274 275 if (is_anchor) 276 goto bail; 277 278 switch (mac_addr_type) { 279 case VNIC_MAC_ADDR_TYPE_FACTORY: 280 create_arg->vc_mac_slot = mac_slot; 281 break; 282 case VNIC_MAC_ADDR_TYPE_RANDOM: 283 bcopy(mac_addr, create_arg->vc_mac_addr, MAXMACADDRLEN); 284 create_arg->vc_mac_len = mac_len; 285 break; 286 } 287 288 bail: 289 create_arg->vc_diag = diag; 290 create_arg->vc_status = err; 291 return (err); 292 } 293 294 /* ARGSUSED */ 295 static int 296 vnic_ioc_modify(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp) 297 { 298 vnic_ioc_modify_t *modify_arg = karg; 299 300 return (vnic_dev_modify(modify_arg->vm_vnic_id, 301 modify_arg->vm_modify_mask, modify_arg->vm_mac_addr_type, 302 modify_arg->vm_mac_len, modify_arg->vm_mac_addr, 303 modify_arg->vm_mac_slot, &modify_arg->vm_resource_props)); 304 } 305 306 /* ARGSUSED */ 307 static int 308 vnic_ioc_delete(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp) 309 { 310 vnic_ioc_delete_t *delete_arg = karg; 311 312 return (vnic_dev_delete(delete_arg->vd_vnic_id, 0, cred)); 313 } 314 315 /* ARGSUSED */ 316 static int 317 vnic_ioc_info(void *karg, intptr_t arg, int mode, cred_t *cred, int *rvalp) 318 { 319 vnic_ioc_info_t *info_arg = karg; 320 321 return (vnic_info(&info_arg->vi_info, cred)); 322 } 323