1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com> 5 * Copyright (c) 2018 The FreeBSD Foundation 6 * All rights reserved. 7 * 8 * This software was developed by SRI International and the University of 9 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) 10 * ("CTSRD"), as part of the DARPA CRASH research programme. 11 * 12 * Portions of this software were developed by Edward Tomasz Napierala 13 * under sponsorship from the FreeBSD Foundation. 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 /* 37 * USB template for CDC ACM (serial), CDC ECM (network), and CDC MSC (storage). 38 */ 39 40 #ifdef USB_GLOBAL_INCLUDE_FILE 41 #include USB_GLOBAL_INCLUDE_FILE 42 #else 43 #include <sys/stdint.h> 44 #include <sys/stddef.h> 45 #include <sys/param.h> 46 #include <sys/queue.h> 47 #include <sys/types.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/bus.h> 51 #include <sys/module.h> 52 #include <sys/lock.h> 53 #include <sys/mutex.h> 54 #include <sys/condvar.h> 55 #include <sys/sysctl.h> 56 #include <sys/sx.h> 57 #include <sys/unistd.h> 58 #include <sys/callout.h> 59 #include <sys/malloc.h> 60 #include <sys/priv.h> 61 62 #include <dev/usb/usb.h> 63 #include <dev/usb/usbdi.h> 64 #include <dev/usb/usb_core.h> 65 #include <dev/usb/usb_cdc.h> 66 #include <dev/usb/usb_ioctl.h> 67 #include <dev/usb/usb_util.h> 68 69 #include <dev/usb/template/usb_template.h> 70 #endif /* USB_GLOBAL_INCLUDE_FILE */ 71 72 #define MODEM_IFACE_0 0 73 #define MODEM_IFACE_1 1 74 75 enum { 76 MULTI_LANG_INDEX, 77 MULTI_MODEM_INDEX, 78 MULTI_ETH_MAC_INDEX, 79 MULTI_ETH_CONTROL_INDEX, 80 MULTI_ETH_DATA_INDEX, 81 MULTI_STORAGE_INDEX, 82 MULTI_CONFIGURATION_INDEX, 83 MULTI_MANUFACTURER_INDEX, 84 MULTI_PRODUCT_INDEX, 85 MULTI_SERIAL_NUMBER_INDEX, 86 MULTI_MAX_INDEX, 87 }; 88 89 #define MULTI_DEFAULT_VENDOR_ID USB_TEMPLATE_VENDOR 90 #define MULTI_DEFAULT_PRODUCT_ID 0x05dc 91 #define MULTI_DEFAULT_MODEM "Virtual serial port" 92 #define MULTI_DEFAULT_ETH_MAC "2A02030405060789AB" 93 #define MULTI_DEFAULT_ETH_CONTROL "Ethernet Comm Interface" 94 #define MULTI_DEFAULT_ETH_DATA "Ethernet Data Interface" 95 #define MULTI_DEFAULT_STORAGE "Mass Storage Interface" 96 #define MULTI_DEFAULT_CONFIGURATION "Default configuration" 97 #define MULTI_DEFAULT_MANUFACTURER USB_TEMPLATE_MANUFACTURER 98 #define MULTI_DEFAULT_PRODUCT "Multifunction Device" 99 /* 100 * The reason for this being called like this is that OSX 101 * derives the device node name from it, resulting in a somewhat 102 * user-friendly "/dev/cu.usbmodemFreeBSD1". And yes, the "1" 103 * needs to be there, otherwise OSX will mangle it. 104 */ 105 #define MULTI_DEFAULT_SERIAL_NUMBER "FreeBSD1" 106 107 static struct usb_string_descriptor multi_modem; 108 static struct usb_string_descriptor multi_eth_mac; 109 static struct usb_string_descriptor multi_eth_control; 110 static struct usb_string_descriptor multi_eth_data; 111 static struct usb_string_descriptor multi_storage; 112 static struct usb_string_descriptor multi_configuration; 113 static struct usb_string_descriptor multi_manufacturer; 114 static struct usb_string_descriptor multi_product; 115 static struct usb_string_descriptor multi_serial_number; 116 117 static struct sysctl_ctx_list multi_ctx_list; 118 119 /* prototypes */ 120 121 static usb_temp_get_string_desc_t multi_get_string_desc; 122 123 static const struct usb_cdc_union_descriptor eth_union_desc = { 124 .bLength = sizeof(eth_union_desc), 125 .bDescriptorType = UDESC_CS_INTERFACE, 126 .bDescriptorSubtype = UDESCSUB_CDC_UNION, 127 .bMasterInterface = 0, /* this is automatically updated */ 128 .bSlaveInterface[0] = 1, /* this is automatically updated */ 129 }; 130 131 static const struct usb_cdc_header_descriptor eth_header_desc = { 132 .bLength = sizeof(eth_header_desc), 133 .bDescriptorType = UDESC_CS_INTERFACE, 134 .bDescriptorSubtype = UDESCSUB_CDC_HEADER, 135 .bcdCDC[0] = 0x10, 136 .bcdCDC[1] = 0x01, 137 }; 138 139 static const struct usb_cdc_ethernet_descriptor eth_enf_desc = { 140 .bLength = sizeof(eth_enf_desc), 141 .bDescriptorType = UDESC_CS_INTERFACE, 142 .bDescriptorSubtype = UDESCSUB_CDC_ENF, 143 .iMacAddress = MULTI_ETH_MAC_INDEX, 144 .bmEthernetStatistics = {0, 0, 0, 0}, 145 .wMaxSegmentSize = {0xEA, 0x05},/* 1514 bytes */ 146 .wNumberMCFilters = {0, 0}, 147 .bNumberPowerFilters = 0, 148 }; 149 150 static const void *eth_control_if_desc[] = { 151 ð_union_desc, 152 ð_header_desc, 153 ð_enf_desc, 154 NULL, 155 }; 156 157 static const struct usb_temp_packet_size bulk_mps = { 158 .mps[USB_SPEED_FULL] = 64, 159 .mps[USB_SPEED_HIGH] = 512, 160 }; 161 162 static const struct usb_temp_packet_size intr_mps = { 163 .mps[USB_SPEED_FULL] = 8, 164 .mps[USB_SPEED_HIGH] = 8, 165 }; 166 167 static const struct usb_temp_endpoint_desc bulk_in_ep = { 168 .pPacketSize = &bulk_mps, 169 #ifdef USB_HIP_IN_EP_0 170 .bEndpointAddress = USB_HIP_IN_EP_0, 171 #else 172 .bEndpointAddress = UE_DIR_IN, 173 #endif 174 .bmAttributes = UE_BULK, 175 }; 176 177 static const struct usb_temp_endpoint_desc bulk_out_ep = { 178 .pPacketSize = &bulk_mps, 179 #ifdef USB_HIP_OUT_EP_0 180 .bEndpointAddress = USB_HIP_OUT_EP_0, 181 #else 182 .bEndpointAddress = UE_DIR_OUT, 183 #endif 184 .bmAttributes = UE_BULK, 185 }; 186 187 static const struct usb_temp_endpoint_desc intr_in_ep = { 188 .pPacketSize = &intr_mps, 189 .bEndpointAddress = UE_DIR_IN, 190 .bmAttributes = UE_INTERRUPT, 191 }; 192 193 static const struct usb_temp_endpoint_desc *eth_intr_endpoints[] = { 194 &intr_in_ep, 195 NULL, 196 }; 197 198 static const struct usb_temp_interface_desc eth_control_interface = { 199 .ppEndpoints = eth_intr_endpoints, 200 .ppRawDesc = eth_control_if_desc, 201 .bInterfaceClass = UICLASS_CDC, 202 .bInterfaceSubClass = UISUBCLASS_ETHERNET_NETWORKING_CONTROL_MODEL, 203 .bInterfaceProtocol = UIPROTO_CDC_NONE, 204 .iInterface = MULTI_ETH_CONTROL_INDEX, 205 }; 206 207 static const struct usb_temp_endpoint_desc *eth_data_endpoints[] = { 208 &bulk_in_ep, 209 &bulk_out_ep, 210 NULL, 211 }; 212 213 static const struct usb_temp_interface_desc eth_data_null_interface = { 214 .ppEndpoints = NULL, /* no endpoints */ 215 .bInterfaceClass = UICLASS_CDC_DATA, 216 .bInterfaceSubClass = UISUBCLASS_DATA, 217 .bInterfaceProtocol = 0, 218 .iInterface = MULTI_ETH_DATA_INDEX, 219 }; 220 221 static const struct usb_temp_interface_desc eth_data_interface = { 222 .ppEndpoints = eth_data_endpoints, 223 .bInterfaceClass = UICLASS_CDC_DATA, 224 .bInterfaceSubClass = UISUBCLASS_DATA, 225 .bInterfaceProtocol = 0, 226 .iInterface = MULTI_ETH_DATA_INDEX, 227 .isAltInterface = 1, /* this is an alternate setting */ 228 }; 229 230 static const struct usb_temp_packet_size modem_bulk_mps = { 231 .mps[USB_SPEED_LOW] = 8, 232 .mps[USB_SPEED_FULL] = 64, 233 .mps[USB_SPEED_HIGH] = 512, 234 }; 235 236 static const struct usb_temp_packet_size modem_intr_mps = { 237 .mps[USB_SPEED_LOW] = 8, 238 .mps[USB_SPEED_FULL] = 8, 239 .mps[USB_SPEED_HIGH] = 8, 240 }; 241 242 static const struct usb_temp_interval modem_intr_interval = { 243 .bInterval[USB_SPEED_LOW] = 8, /* 8ms */ 244 .bInterval[USB_SPEED_FULL] = 8, /* 8ms */ 245 .bInterval[USB_SPEED_HIGH] = 7, /* 8ms */ 246 }; 247 248 static const struct usb_temp_endpoint_desc modem_ep_0 = { 249 .pPacketSize = &modem_intr_mps, 250 .pIntervals = &modem_intr_interval, 251 .bEndpointAddress = UE_DIR_IN, 252 .bmAttributes = UE_INTERRUPT, 253 }; 254 255 static const struct usb_temp_endpoint_desc modem_ep_1 = { 256 .pPacketSize = &modem_bulk_mps, 257 .bEndpointAddress = UE_DIR_OUT, 258 .bmAttributes = UE_BULK, 259 }; 260 261 static const struct usb_temp_endpoint_desc modem_ep_2 = { 262 .pPacketSize = &modem_bulk_mps, 263 .bEndpointAddress = UE_DIR_IN, 264 .bmAttributes = UE_BULK, 265 }; 266 267 static const struct usb_temp_endpoint_desc *modem_iface_0_ep[] = { 268 &modem_ep_0, 269 NULL, 270 }; 271 272 static const struct usb_temp_endpoint_desc *modem_iface_1_ep[] = { 273 &modem_ep_1, 274 &modem_ep_2, 275 NULL, 276 }; 277 278 static const uint8_t modem_raw_desc_0[] = { 279 0x05, 0x24, 0x00, 0x10, 0x01 280 }; 281 282 static const uint8_t modem_raw_desc_1[] = { 283 0x05, 0x24, 0x06, MODEM_IFACE_0, MODEM_IFACE_1 284 }; 285 286 static const uint8_t modem_raw_desc_2[] = { 287 0x05, 0x24, 0x01, 0x03, MODEM_IFACE_1 288 }; 289 290 static const uint8_t modem_raw_desc_3[] = { 291 0x04, 0x24, 0x02, 0x07 292 }; 293 294 static const void *modem_iface_0_desc[] = { 295 &modem_raw_desc_0, 296 &modem_raw_desc_1, 297 &modem_raw_desc_2, 298 &modem_raw_desc_3, 299 NULL, 300 }; 301 302 static const struct usb_temp_interface_desc modem_iface_0 = { 303 .ppRawDesc = modem_iface_0_desc, 304 .ppEndpoints = modem_iface_0_ep, 305 .bInterfaceClass = UICLASS_CDC, 306 .bInterfaceSubClass = UISUBCLASS_ABSTRACT_CONTROL_MODEL, 307 .bInterfaceProtocol = UIPROTO_CDC_NONE, 308 .iInterface = MULTI_MODEM_INDEX, 309 }; 310 311 static const struct usb_temp_interface_desc modem_iface_1 = { 312 .ppEndpoints = modem_iface_1_ep, 313 .bInterfaceClass = UICLASS_CDC_DATA, 314 .bInterfaceSubClass = UISUBCLASS_DATA, 315 .bInterfaceProtocol = 0, 316 .iInterface = MULTI_MODEM_INDEX, 317 }; 318 319 static const struct usb_temp_packet_size msc_bulk_mps = { 320 .mps[USB_SPEED_FULL] = 64, 321 .mps[USB_SPEED_HIGH] = 512, 322 }; 323 324 static const struct usb_temp_endpoint_desc msc_bulk_in_ep = { 325 .pPacketSize = &msc_bulk_mps, 326 #ifdef USB_HIP_IN_EP_0 327 .bEndpointAddress = USB_HIP_IN_EP_0, 328 #else 329 .bEndpointAddress = UE_DIR_IN, 330 #endif 331 .bmAttributes = UE_BULK, 332 }; 333 334 static const struct usb_temp_endpoint_desc msc_bulk_out_ep = { 335 .pPacketSize = &msc_bulk_mps, 336 #ifdef USB_HIP_OUT_EP_0 337 .bEndpointAddress = USB_HIP_OUT_EP_0, 338 #else 339 .bEndpointAddress = UE_DIR_OUT, 340 #endif 341 .bmAttributes = UE_BULK, 342 }; 343 344 static const struct usb_temp_endpoint_desc *msc_data_endpoints[] = { 345 &msc_bulk_in_ep, 346 &msc_bulk_out_ep, 347 NULL, 348 }; 349 350 static const struct usb_temp_interface_desc msc_data_interface = { 351 .ppEndpoints = msc_data_endpoints, 352 .bInterfaceClass = UICLASS_MASS, 353 .bInterfaceSubClass = UISUBCLASS_SCSI, 354 .bInterfaceProtocol = UIPROTO_MASS_BBB, 355 .iInterface = MULTI_STORAGE_INDEX, 356 }; 357 358 static const struct usb_temp_interface_desc *multi_interfaces[] = { 359 &modem_iface_0, 360 &modem_iface_1, 361 ð_control_interface, 362 ð_data_null_interface, 363 ð_data_interface, 364 &msc_data_interface, 365 NULL, 366 }; 367 368 static const struct usb_temp_config_desc multi_config_desc = { 369 .ppIfaceDesc = multi_interfaces, 370 .bmAttributes = 0, 371 .bMaxPower = 0, 372 .iConfiguration = MULTI_CONFIGURATION_INDEX, 373 }; 374 static const struct usb_temp_config_desc *multi_configs[] = { 375 &multi_config_desc, 376 NULL, 377 }; 378 379 struct usb_temp_device_desc usb_template_multi = { 380 .getStringDesc = &multi_get_string_desc, 381 .ppConfigDesc = multi_configs, 382 .idVendor = MULTI_DEFAULT_VENDOR_ID, 383 .idProduct = MULTI_DEFAULT_PRODUCT_ID, 384 .bcdDevice = 0x0100, 385 .bDeviceClass = UDCLASS_IN_INTERFACE, 386 .bDeviceSubClass = 0, 387 .bDeviceProtocol = 0, 388 .iManufacturer = MULTI_MANUFACTURER_INDEX, 389 .iProduct = MULTI_PRODUCT_INDEX, 390 .iSerialNumber = MULTI_SERIAL_NUMBER_INDEX, 391 }; 392 393 /*------------------------------------------------------------------------* 394 * multi_get_string_desc 395 * 396 * Return values: 397 * NULL: Failure. No such string. 398 * Else: Success. Pointer to string descriptor is returned. 399 *------------------------------------------------------------------------*/ 400 static const void * 401 multi_get_string_desc(uint16_t lang_id, uint8_t string_index) 402 { 403 static const void *ptr[MULTI_MAX_INDEX] = { 404 [MULTI_LANG_INDEX] = &usb_string_lang_en, 405 [MULTI_MODEM_INDEX] = &multi_modem, 406 [MULTI_ETH_MAC_INDEX] = &multi_eth_mac, 407 [MULTI_ETH_CONTROL_INDEX] = &multi_eth_control, 408 [MULTI_ETH_DATA_INDEX] = &multi_eth_data, 409 [MULTI_STORAGE_INDEX] = &multi_storage, 410 [MULTI_CONFIGURATION_INDEX] = &multi_configuration, 411 [MULTI_MANUFACTURER_INDEX] = &multi_manufacturer, 412 [MULTI_PRODUCT_INDEX] = &multi_product, 413 [MULTI_SERIAL_NUMBER_INDEX] = &multi_serial_number, 414 }; 415 416 if (string_index == 0) { 417 return (&usb_string_lang_en); 418 } 419 if (lang_id != 0x0409) { 420 return (NULL); 421 } 422 if (string_index < MULTI_MAX_INDEX) { 423 return (ptr[string_index]); 424 } 425 return (NULL); 426 } 427 428 static void 429 multi_init(void *arg __unused) 430 { 431 struct sysctl_oid *parent; 432 char parent_name[3]; 433 434 usb_make_str_desc(&multi_modem, sizeof(multi_modem), 435 MULTI_DEFAULT_MODEM); 436 usb_make_str_desc(&multi_eth_mac, sizeof(multi_eth_mac), 437 MULTI_DEFAULT_ETH_MAC); 438 usb_make_str_desc(&multi_eth_control, sizeof(multi_eth_control), 439 MULTI_DEFAULT_ETH_CONTROL); 440 usb_make_str_desc(&multi_eth_data, sizeof(multi_eth_data), 441 MULTI_DEFAULT_ETH_DATA); 442 usb_make_str_desc(&multi_storage, sizeof(multi_storage), 443 MULTI_DEFAULT_STORAGE); 444 usb_make_str_desc(&multi_configuration, sizeof(multi_configuration), 445 MULTI_DEFAULT_CONFIGURATION); 446 usb_make_str_desc(&multi_manufacturer, sizeof(multi_manufacturer), 447 MULTI_DEFAULT_MANUFACTURER); 448 usb_make_str_desc(&multi_product, sizeof(multi_product), 449 MULTI_DEFAULT_PRODUCT); 450 usb_make_str_desc(&multi_serial_number, sizeof(multi_serial_number), 451 MULTI_DEFAULT_SERIAL_NUMBER); 452 453 snprintf(parent_name, sizeof(parent_name), "%d", USB_TEMP_MULTI); 454 sysctl_ctx_init(&multi_ctx_list); 455 456 parent = SYSCTL_ADD_NODE(&multi_ctx_list, 457 SYSCTL_STATIC_CHILDREN(_hw_usb_templates), OID_AUTO, 458 parent_name, CTLFLAG_RW | CTLFLAG_MPSAFE, 459 0, "USB Multifunction device side template"); 460 SYSCTL_ADD_U16(&multi_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO, 461 "vendor_id", CTLFLAG_RWTUN, 462 &usb_template_multi.idVendor, 1, "Vendor identifier"); 463 SYSCTL_ADD_U16(&multi_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO, 464 "product_id", CTLFLAG_RWTUN, 465 &usb_template_multi.idProduct, 1, "Product identifier"); 466 SYSCTL_ADD_PROC(&multi_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO, 467 "eth_mac", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, 468 &multi_eth_mac, sizeof(multi_eth_mac), usb_temp_sysctl, 469 "A", "Ethernet MAC address string"); 470 #if 0 471 SYSCTL_ADD_PROC(&multi_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO, 472 "modem", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, 473 &multi_modem, sizeof(multi_modem), usb_temp_sysctl, 474 "A", "Modem interface string"); 475 SYSCTL_ADD_PROC(&multi_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO, 476 "eth_control", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, 477 &multi_eth_control, sizeof(multi_eth_data), usb_temp_sysctl, 478 "A", "Ethernet control interface string"); 479 SYSCTL_ADD_PROC(&multi_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO, 480 "eth_data", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, 481 &multi_eth_data, sizeof(multi_eth_data), usb_temp_sysctl, 482 "A", "Ethernet data interface string"); 483 SYSCTL_ADD_PROC(&multi_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO, 484 "interface", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, 485 &multi_storage, sizeof(multi_storage), usb_temp_sysctl, 486 "A", "Storage interface string"); 487 SYSCTL_ADD_PROC(&multi_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO, 488 "configuration", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, 489 &multi_configuration, sizeof(multi_configuration), usb_temp_sysctl, 490 "A", "Configuration string"); 491 #endif 492 SYSCTL_ADD_PROC(&multi_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO, 493 "manufacturer", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, 494 &multi_manufacturer, sizeof(multi_manufacturer), usb_temp_sysctl, 495 "A", "Manufacturer string"); 496 SYSCTL_ADD_PROC(&multi_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO, 497 "product", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, 498 &multi_product, sizeof(multi_product), usb_temp_sysctl, 499 "A", "Product string"); 500 SYSCTL_ADD_PROC(&multi_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO, 501 "serial_number", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, 502 &multi_serial_number, sizeof(multi_serial_number), usb_temp_sysctl, 503 "A", "Serial number string"); 504 } 505 506 static void 507 multi_uninit(void *arg __unused) 508 { 509 510 sysctl_ctx_free(&multi_ctx_list); 511 } 512 513 SYSINIT(multi_init, SI_SUB_LOCK, SI_ORDER_FIRST, multi_init, NULL); 514 SYSUNINIT(multi_uninit, SI_SUB_LOCK, SI_ORDER_FIRST, multi_uninit, NULL); 515