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sys/dev/wtap/if_wtap_module.c
| /*- | /*- | ||||
| * SPDX-License-Identifier: BSD-2-Clause-FreeBSD | * SPDX-License-Identifier: BSD-2-Clause-FreeBSD | ||||
| * | * | ||||
| * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB | * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB | ||||
| * All rights reserved. | * All rights reserved. | ||||
| * Copyright (c) 2023 The FreeBSD Foundation | |||||
| * | * | ||||
| * Portions of this software were developed by En-Wei Wu | |||||
| * under sponsorship from the FreeBSD Foundation. | |||||
| * | |||||
| * Redistribution and use in source and binary forms, with or without | * Redistribution and use in source and binary forms, with or without | ||||
| * modification, are permitted provided that the following conditions | * modification, are permitted provided that the following conditions | ||||
| * are met: | * are met: | ||||
| * 1. Redistributions of source code must retain the above copyright | * 1. Redistributions of source code must retain the above copyright | ||||
| * notice, this list of conditions and the following disclaimer, | * notice, this list of conditions and the following disclaimer, | ||||
| * without modification. | * without modification. | ||||
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | ||||
| * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any | * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any | ||||
| ▲ Show 20 Lines • Show All 89 Lines • ▼ Show 20 Lines | static struct cdevsw wtap_cdevsw = { | ||||
| .d_name = "wtapctl", | .d_name = "wtapctl", | ||||
| }; | }; | ||||
| int | int | ||||
| wtap_ioctl(struct cdev *dev, u_long cmd, caddr_t data, | wtap_ioctl(struct cdev *dev, u_long cmd, caddr_t data, | ||||
| int fflag, struct thread *td) | int fflag, struct thread *td) | ||||
| { | { | ||||
| int error = 0; | int error = 0; | ||||
| int id; | |||||
| CURVNET_SET(CRED_TO_VNET(curthread->td_ucred)); | CURVNET_SET(CRED_TO_VNET(curthread->td_ucred)); | ||||
| switch(cmd) { | switch(cmd) { | ||||
| case WTAPIOCTLCRT: | case WTAPIOCTLCRT: | ||||
| if(new_wtap(hal, *(int *)data)) | if((id = new_wtap(hal, *(int *)data)) < 0) | ||||
| error = EINVAL; | error = EINVAL; | ||||
| memcpy(data, &id, sizeof(int)); | |||||
| break; | break; | ||||
| case WTAPIOCTLDEL: | case WTAPIOCTLDEL: | ||||
| if(free_wtap(hal, *(int *)data)) | if(free_wtap(hal, *(int *)data)) | ||||
| error = EINVAL; | error = EINVAL; | ||||
| break; | |||||
| case WTAPIOCTLLIST: | |||||
| memcpy(data, &hal->hal_devs_set, sizeof(uint64_t)); | |||||
| break; | break; | ||||
| default: | default: | ||||
| DWTAP_PRINTF("Unknown WTAP IOCTL\n"); | DWTAP_PRINTF("Unknown WTAP IOCTL\n"); | ||||
| error = EINVAL; | error = EINVAL; | ||||
| } | } | ||||
| CURVNET_RESTORE(); | CURVNET_RESTORE(); | ||||
| return error; | return error; | ||||
| ▲ Show 20 Lines • Show All 54 Lines • Show Last 20 Lines | |||||