1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2008 David E. O'Brien 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the author nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/param.h> 36 #include <sys/capsicum.h> 37 #include <sys/cdio.h> 38 #include <sys/fcntl.h> 39 #include <sys/filio.h> 40 #include <sys/file.h> 41 #include <sys/ioccom.h> 42 #include <sys/malloc.h> 43 #include <sys/memrange.h> 44 #include <sys/pciio.h> 45 #include <sys/proc.h> 46 #include <sys/syscall.h> 47 #include <sys/syscallsubr.h> 48 #include <sys/sysctl.h> 49 #include <sys/sysent.h> 50 #include <sys/sysproto.h> 51 #include <sys/systm.h> 52 #include <sys/uio.h> 53 54 #include <compat/freebsd32/freebsd32.h> 55 #include <compat/freebsd32/freebsd32_ioctl.h> 56 #include <compat/freebsd32/freebsd32_misc.h> 57 #include <compat/freebsd32/freebsd32_proto.h> 58 59 CTASSERT(sizeof(struct mem_range_op32) == 12); 60 61 static int 62 freebsd32_ioctl_memrange(struct thread *td, 63 struct freebsd32_ioctl_args *uap, struct file *fp) 64 { 65 struct mem_range_op mro; 66 struct mem_range_op32 mro32; 67 int error; 68 u_long com; 69 70 if ((error = copyin(uap->data, &mro32, sizeof(mro32))) != 0) 71 return (error); 72 73 PTRIN_CP(mro32, mro, mo_desc); 74 CP(mro32, mro, mo_arg[0]); 75 CP(mro32, mro, mo_arg[1]); 76 77 com = _IOC_NEWTYPE(uap->com, struct mem_range_op); 78 79 if ((error = fo_ioctl(fp, com, (caddr_t)&mro, td->td_ucred, td)) != 0) 80 return (error); 81 82 if ( (com & IOC_OUT) ) { 83 CP(mro, mro32, mo_arg[0]); 84 CP(mro, mro32, mo_arg[1]); 85 86 error = copyout(&mro32, uap->data, sizeof(mro32)); 87 } 88 89 return (error); 90 } 91 92 static int 93 freebsd32_ioctl_barmmap(struct thread *td, 94 struct freebsd32_ioctl_args *uap, struct file *fp) 95 { 96 struct pci_bar_mmap32 pbm32; 97 struct pci_bar_mmap pbm; 98 int error; 99 100 error = copyin(uap->data, &pbm32, sizeof(pbm32)); 101 if (error != 0) 102 return (error); 103 PTRIN_CP(pbm32, pbm, pbm_map_base); 104 CP(pbm32, pbm, pbm_sel); 105 CP(pbm32, pbm, pbm_reg); 106 CP(pbm32, pbm, pbm_flags); 107 CP(pbm32, pbm, pbm_memattr); 108 pbm.pbm_bar_length = PAIR32TO64(uint64_t, pbm32.pbm_bar_length); 109 error = fo_ioctl(fp, PCIOCBARMMAP, (caddr_t)&pbm, td->td_ucred, td); 110 if (error == 0) { 111 PTROUT_CP(pbm, pbm32, pbm_map_base); 112 CP(pbm, pbm32, pbm_map_length); 113 #if BYTE_ORDER == LITTLE_ENDIAN 114 pbm32.pbm_bar_length1 = pbm.pbm_bar_length; 115 pbm32.pbm_bar_length2 = pbm.pbm_bar_length >> 32; 116 #else 117 pbm32.pbm_bar_length1 = pbm.pbm_bar_length >> 32; 118 pbm32.pbm_bar_length2 = pbm.pbm_bar_length; 119 #endif 120 CP(pbm, pbm32, pbm_bar_off); 121 error = copyout(&pbm32, uap->data, sizeof(pbm32)); 122 } 123 return (error); 124 } 125 126 static int 127 freebsd32_ioctl_sg(struct thread *td, 128 struct freebsd32_ioctl_args *uap, struct file *fp) 129 { 130 struct sg_io_hdr io; 131 struct sg_io_hdr32 io32; 132 int error; 133 134 if ((error = copyin(uap->data, &io32, sizeof(io32))) != 0) 135 return (error); 136 137 CP(io32, io, interface_id); 138 CP(io32, io, dxfer_direction); 139 CP(io32, io, cmd_len); 140 CP(io32, io, mx_sb_len); 141 CP(io32, io, iovec_count); 142 CP(io32, io, dxfer_len); 143 PTRIN_CP(io32, io, dxferp); 144 PTRIN_CP(io32, io, cmdp); 145 PTRIN_CP(io32, io, sbp); 146 CP(io32, io, timeout); 147 CP(io32, io, flags); 148 CP(io32, io, pack_id); 149 PTRIN_CP(io32, io, usr_ptr); 150 CP(io32, io, status); 151 CP(io32, io, masked_status); 152 CP(io32, io, msg_status); 153 CP(io32, io, sb_len_wr); 154 CP(io32, io, host_status); 155 CP(io32, io, driver_status); 156 CP(io32, io, resid); 157 CP(io32, io, duration); 158 CP(io32, io, info); 159 160 if ((error = fo_ioctl(fp, SG_IO, (caddr_t)&io, td->td_ucred, td)) != 0) 161 return (error); 162 163 CP(io, io32, interface_id); 164 CP(io, io32, dxfer_direction); 165 CP(io, io32, cmd_len); 166 CP(io, io32, mx_sb_len); 167 CP(io, io32, iovec_count); 168 CP(io, io32, dxfer_len); 169 PTROUT_CP(io, io32, dxferp); 170 PTROUT_CP(io, io32, cmdp); 171 PTROUT_CP(io, io32, sbp); 172 CP(io, io32, timeout); 173 CP(io, io32, flags); 174 CP(io, io32, pack_id); 175 PTROUT_CP(io, io32, usr_ptr); 176 CP(io, io32, status); 177 CP(io, io32, masked_status); 178 CP(io, io32, msg_status); 179 CP(io, io32, sb_len_wr); 180 CP(io, io32, host_status); 181 CP(io, io32, driver_status); 182 CP(io, io32, resid); 183 CP(io, io32, duration); 184 CP(io, io32, info); 185 186 error = copyout(&io32, uap->data, sizeof(io32)); 187 188 return (error); 189 } 190 191 int 192 freebsd32_ioctl(struct thread *td, struct freebsd32_ioctl_args *uap) 193 { 194 struct ioctl_args ap /*{ 195 int fd; 196 u_long com; 197 caddr_t data; 198 }*/ ; 199 struct file *fp; 200 cap_rights_t rights; 201 int error; 202 203 error = fget(td, uap->fd, cap_rights_init_one(&rights, CAP_IOCTL), &fp); 204 if (error != 0) 205 return (error); 206 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 207 fdrop(fp, td); 208 return (EBADF); 209 } 210 211 switch (uap->com) { 212 case MEMRANGE_GET32: /* FALLTHROUGH */ 213 case MEMRANGE_SET32: 214 error = freebsd32_ioctl_memrange(td, uap, fp); 215 break; 216 217 case SG_IO_32: 218 error = freebsd32_ioctl_sg(td, uap, fp); 219 break; 220 221 case PCIOCBARMMAP_32: 222 error = freebsd32_ioctl_barmmap(td, uap, fp); 223 break; 224 225 default: 226 fdrop(fp, td); 227 ap.fd = uap->fd; 228 ap.com = uap->com; 229 PTRIN_CP(*uap, ap, data); 230 return sys_ioctl(td, &ap); 231 } 232 233 fdrop(fp, td); 234 return (error); 235 } 236