1898b0535SWarner Losh /*- 27f2d13d6SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause 37f2d13d6SPedro F. Giffuni * 4d66a5066SPeter Wemm * Copyright (c) 1994 Christos Zoulas 5d66a5066SPeter Wemm * Copyright (c) 1995 Frank van der Linden 6d66a5066SPeter Wemm * Copyright (c) 1995 Scott Bartram 7d66a5066SPeter Wemm * All rights reserved. 8d66a5066SPeter Wemm * 9d66a5066SPeter Wemm * Redistribution and use in source and binary forms, with or without 10d66a5066SPeter Wemm * modification, are permitted provided that the following conditions 11d66a5066SPeter Wemm * are met: 12d66a5066SPeter Wemm * 1. Redistributions of source code must retain the above copyright 13d66a5066SPeter Wemm * notice, this list of conditions and the following disclaimer. 14d66a5066SPeter Wemm * 2. Redistributions in binary form must reproduce the above copyright 15d66a5066SPeter Wemm * notice, this list of conditions and the following disclaimer in the 16d66a5066SPeter Wemm * documentation and/or other materials provided with the distribution. 17d66a5066SPeter Wemm * 3. The name of the author may not be used to endorse or promote products 18d66a5066SPeter Wemm * derived from this software without specific prior written permission 19d66a5066SPeter Wemm * 20d66a5066SPeter Wemm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21d66a5066SPeter Wemm * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22d66a5066SPeter Wemm * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23d66a5066SPeter Wemm * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24d66a5066SPeter Wemm * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25d66a5066SPeter Wemm * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26d66a5066SPeter Wemm * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27d66a5066SPeter Wemm * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28d66a5066SPeter Wemm * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29d66a5066SPeter Wemm * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30d66a5066SPeter Wemm * 31d66a5066SPeter Wemm * from: svr4_util.h,v 1.5 1994/11/18 02:54:31 christos Exp 32d66a5066SPeter Wemm * from: linux_util.h,v 1.2 1995/03/05 23:23:50 fvdl Exp 33c3aac50fSPeter Wemm * $FreeBSD$ 34d66a5066SPeter Wemm */ 35d66a5066SPeter Wemm 36d66a5066SPeter Wemm #ifndef _LINUX_UTIL_H_ 37d66a5066SPeter Wemm #define _LINUX_UTIL_H_ 38d66a5066SPeter Wemm 39ff766321SIan Dowse #include <sys/uio.h> 40d66a5066SPeter Wemm 4167d39748SDmitry Chagin MALLOC_DECLARE(M_LINUX); 42e16fe1c7SDmitry Chagin MALLOC_DECLARE(M_EPOLL); 4367d39748SDmitry Chagin 44b5f20658SEdward Tomasz Napierala extern char linux_emul_path[]; 45a125ed50SMateusz Guzik extern int linux_use_emul_path; 4643bef515SMarcel Moolenaar 47af4051d2SMateusz Guzik int linux_emul_convpath(const char *, enum uio_seg, char **, int, int); 48d66a5066SPeter Wemm 49a125ed50SMateusz Guzik #define LUSECONVPATH(td) atomic_load_int(&linux_use_emul_path) 50a125ed50SMateusz Guzik 51af4051d2SMateusz Guzik #define LCONVPATH_AT(upath, pathp, i, dfd) \ 52ff766321SIan Dowse do { \ 53ff766321SIan Dowse int _error; \ 54ff766321SIan Dowse \ 55af4051d2SMateusz Guzik _error = linux_emul_convpath(upath, UIO_USERSPACE, \ 5648b05c3fSKonstantin Belousov pathp, i, dfd); \ 57ff766321SIan Dowse if (*(pathp) == NULL) \ 58ff766321SIan Dowse return (_error); \ 59ff766321SIan Dowse } while (0) 60ff766321SIan Dowse 61af4051d2SMateusz Guzik #define LCONVPATH(upath, pathp, i) \ 62af4051d2SMateusz Guzik LCONVPATH_AT(upath, pathp, i, AT_FDCWD) 636734f35eSJulian Elischer 64af4051d2SMateusz Guzik #define LCONVPATHEXIST(upath, pathp) LCONVPATH(upath, pathp, 0) 65af4051d2SMateusz Guzik #define LCONVPATHEXIST_AT(upath, pathp, dfd) LCONVPATH_AT(upath, pathp, 0, dfd) 66af4051d2SMateusz Guzik #define LCONVPATHCREAT(upath, pathp) LCONVPATH(upath, pathp, 1) 67af4051d2SMateusz Guzik #define LCONVPATHCREAT_AT(upath, pathp, dfd) LCONVPATH_AT(upath, pathp, 1, dfd) 68ff766321SIan Dowse #define LFREEPATH(path) free(path, M_TEMP) 69ff766321SIan Dowse 705231fb20SDavid E. O'Brien #define DUMMY(s) \ 7119e252baSAlexander Leidinger LIN_SDT_PROBE_DEFINE0(dummy, s, not_implemented); \ 725231fb20SDavid E. O'Brien int \ 7308de85f5SDavid Malone linux_ ## s(struct thread *td, struct linux_ ## s ## _args *args) \ 745231fb20SDavid E. O'Brien { \ 757a143545SGleb Smirnoff static pid_t pid; \ 767a143545SGleb Smirnoff \ 777a143545SGleb Smirnoff if (pid != td->td_proc->p_pid) { \ 787a143545SGleb Smirnoff linux_msg(td, "syscall %s not implemented", #s); \ 7919e252baSAlexander Leidinger LIN_SDT_PROBE0(dummy, s, not_implemented); \ 807a143545SGleb Smirnoff pid = td->td_proc->p_pid; \ 817a143545SGleb Smirnoff }; \ 8219e252baSAlexander Leidinger \ 837a143545SGleb Smirnoff return (ENOSYS); \ 845231fb20SDavid E. O'Brien } \ 855231fb20SDavid E. O'Brien struct __hack 865231fb20SDavid E. O'Brien 878049c6bfSMahdi Mokhtari /* 888049c6bfSMahdi Mokhtari * This is for the syscalls that are not even yet implemented in Linux. 898049c6bfSMahdi Mokhtari * 908049c6bfSMahdi Mokhtari * They're marked as UNIMPL in syscall.master so it will 918049c6bfSMahdi Mokhtari * have nosys record in linux_sysent[]. 928049c6bfSMahdi Mokhtari */ 938049c6bfSMahdi Mokhtari #define UNIMPLEMENTED(s) 948049c6bfSMahdi Mokhtari 95e15583ceSAlfred Perlstein void linux_msg(const struct thread *td, const char *fmt, ...) 96e15583ceSAlfred Perlstein __printflike(2, 3); 97e15583ceSAlfred Perlstein 98060e4882SDoug Ambrisko struct linux_device_handler { 99060e4882SDoug Ambrisko char *bsd_driver_name; 100060e4882SDoug Ambrisko char *linux_driver_name; 101060e4882SDoug Ambrisko char *bsd_device_name; 102060e4882SDoug Ambrisko char *linux_device_name; 103060e4882SDoug Ambrisko int linux_major; 104060e4882SDoug Ambrisko int linux_minor; 105060e4882SDoug Ambrisko int linux_char_device; 106060e4882SDoug Ambrisko }; 107060e4882SDoug Ambrisko 108*6072eea0SDmitry Chagin struct stat; 109*6072eea0SDmitry Chagin 110060e4882SDoug Ambrisko int linux_device_register_handler(struct linux_device_handler *h); 111060e4882SDoug Ambrisko int linux_device_unregister_handler(struct linux_device_handler *h); 112060e4882SDoug Ambrisko char *linux_driver_get_name_dev(device_t dev); 1137870adb6SEd Schouten int linux_driver_get_major_minor(const char *node, int *major, int *minor); 1141a34e9faSEdward Tomasz Napierala int linux_vn_get_major_minor(const struct vnode *vn, int *major, int *minor); 115060e4882SDoug Ambrisko char *linux_get_char_devices(void); 116060e4882SDoug Ambrisko void linux_free_get_char_devices(char *string); 117*6072eea0SDmitry Chagin void translate_vnhook_major_minor(struct vnode *vp, struct stat *sb); 118060e4882SDoug Ambrisko 1194ec3ea90SDmitry Chagin #if defined(KTR) 1204ec3ea90SDmitry Chagin 1214ec3ea90SDmitry Chagin #define KTR_LINUX KTR_SUBSYS 1224ec3ea90SDmitry Chagin #define LINUX_CTRFMT(nm, fmt) #nm"("fmt")" 1234ec3ea90SDmitry Chagin 1244ec3ea90SDmitry Chagin #define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) do { \ 1254ec3ea90SDmitry Chagin CTR6(KTR_LINUX, LINUX_CTRFMT(f, m), \ 1264ec3ea90SDmitry Chagin p1, p2, p3, p4, p5, p6); \ 1274ec3ea90SDmitry Chagin } while (0) 1284ec3ea90SDmitry Chagin 1294ec3ea90SDmitry Chagin #define LINUX_CTR(f) LINUX_CTR6(f, "", 0, 0, 0, 0, 0, 0) 1304ec3ea90SDmitry Chagin #define LINUX_CTR0(f, m) LINUX_CTR6(f, m, 0, 0, 0, 0, 0, 0) 1314ec3ea90SDmitry Chagin #define LINUX_CTR1(f, m, p1) LINUX_CTR6(f, m, p1, 0, 0, 0, 0, 0) 1324ec3ea90SDmitry Chagin #define LINUX_CTR2(f, m, p1, p2) LINUX_CTR6(f, m, p1, p2, 0, 0, 0, 0) 1334ec3ea90SDmitry Chagin #define LINUX_CTR3(f, m, p1, p2, p3) LINUX_CTR6(f, m, p1, p2, p3, 0, 0, 0) 1344ec3ea90SDmitry Chagin #define LINUX_CTR4(f, m, p1, p2, p3, p4) LINUX_CTR6(f, m, p1, p2, p3, p4, 0, 0) 1354ec3ea90SDmitry Chagin #define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) LINUX_CTR6(f, m, p1, p2, p3, p4, p5, 0) 1364ec3ea90SDmitry Chagin #else 1374ec3ea90SDmitry Chagin #define LINUX_CTR(f) 1384ec3ea90SDmitry Chagin #define LINUX_CTR0(f, m) 1394ec3ea90SDmitry Chagin #define LINUX_CTR1(f, m, p1) 1404ec3ea90SDmitry Chagin #define LINUX_CTR2(f, m, p1, p2) 1414ec3ea90SDmitry Chagin #define LINUX_CTR3(f, m, p1, p2, p3) 1424ec3ea90SDmitry Chagin #define LINUX_CTR4(f, m, p1, p2, p3, p4) 1434ec3ea90SDmitry Chagin #define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) 1444ec3ea90SDmitry Chagin #define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) 1454ec3ea90SDmitry Chagin #endif 1464ec3ea90SDmitry Chagin 1478ec6c4a3SAlexander Leidinger /* 1488ec6c4a3SAlexander Leidinger * Some macros for rate limiting messages: 1498ec6c4a3SAlexander Leidinger * - noisy if compat.linux.debug = 1 1508ec6c4a3SAlexander Leidinger * - print only once if compat.linux.debug > 1 1518ec6c4a3SAlexander Leidinger */ 1528ec6c4a3SAlexander Leidinger #define LINUX_RATELIMIT_MSG_NOTTESTED(_what) \ 1538ec6c4a3SAlexander Leidinger do { \ 1548ec6c4a3SAlexander Leidinger static int seen = 0; \ 1558ec6c4a3SAlexander Leidinger \ 1568ec6c4a3SAlexander Leidinger if (seen == 0 && linux_debug >= 2) { \ 1578ec6c4a3SAlexander Leidinger linux_msg(curthread, "%s is not tested, please report on emulation@FreeBSD.org how it works", _what); \ 1588ec6c4a3SAlexander Leidinger \ 1598ec6c4a3SAlexander Leidinger if (linux_debug < 3) \ 1608ec6c4a3SAlexander Leidinger seen = 1; \ 1618ec6c4a3SAlexander Leidinger } \ 1628ec6c4a3SAlexander Leidinger } while (0) 1638ec6c4a3SAlexander Leidinger 1640d77f6c0SDmitry Chagin #define LINUX_RATELIMIT_MSG(_message) \ 1650d77f6c0SDmitry Chagin do { \ 1660d77f6c0SDmitry Chagin static int seen = 0; \ 1670d77f6c0SDmitry Chagin \ 1680d77f6c0SDmitry Chagin if (seen == 0) { \ 1690d77f6c0SDmitry Chagin linux_msg(curthread, _message); \ 1700d77f6c0SDmitry Chagin \ 1710d77f6c0SDmitry Chagin if (linux_debug < 3) \ 1720d77f6c0SDmitry Chagin seen = 1; \ 1730d77f6c0SDmitry Chagin } \ 1740d77f6c0SDmitry Chagin } while (0) 1750d77f6c0SDmitry Chagin 1768ec6c4a3SAlexander Leidinger #define LINUX_RATELIMIT_MSG_OPT1(_message, _opt1) \ 1778ec6c4a3SAlexander Leidinger do { \ 1788ec6c4a3SAlexander Leidinger static int seen = 0; \ 1798ec6c4a3SAlexander Leidinger \ 1808ec6c4a3SAlexander Leidinger if (seen == 0) { \ 1818ec6c4a3SAlexander Leidinger linux_msg(curthread, _message, _opt1); \ 1828ec6c4a3SAlexander Leidinger \ 1838ec6c4a3SAlexander Leidinger if (linux_debug < 3) \ 1848ec6c4a3SAlexander Leidinger seen = 1; \ 1858ec6c4a3SAlexander Leidinger } \ 1868ec6c4a3SAlexander Leidinger } while (0) 1878ec6c4a3SAlexander Leidinger 1884f02a4f4SDmitry Chagin #define LINUX_RATELIMIT_MSG_OPT2(_message, _opt1, _opt2) \ 1894f02a4f4SDmitry Chagin do { \ 1904f02a4f4SDmitry Chagin static int seen = 0; \ 1914f02a4f4SDmitry Chagin \ 1924f02a4f4SDmitry Chagin if (seen == 0) { \ 1934f02a4f4SDmitry Chagin linux_msg(curthread, _message, _opt1, _opt2); \ 1944f02a4f4SDmitry Chagin \ 1954f02a4f4SDmitry Chagin if (linux_debug < 3) \ 1964f02a4f4SDmitry Chagin seen = 1; \ 1974f02a4f4SDmitry Chagin } \ 1984f02a4f4SDmitry Chagin } while (0) 1994f02a4f4SDmitry Chagin 200d66a5066SPeter Wemm #endif /* ! _LINUX_UTIL_H_ */ 201