/*- * Copyright (c) 2008-2011 Apple Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Apple Inc. ("Apple") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * */ #include #include #include #include #include #if CONFIG_AUDIT /* * Different operating systems use different numeric constants for different * error numbers, and sometimes error numbers don't exist in more than one * operating system. These routines convert between BSM and local error * number spaces, subject to the above realities. BSM error numbers are * stored in a single 8-bit character, so don't have a byte order. * * Don't include string definitions when this code is compiled into a kernel. */ struct bsm_errno { int be_bsm_errno; int be_local_errno; #if !defined(KERNEL) && !defined(_KERNEL) const char *be_strerror; #endif }; #define ERRNO_NO_LOCAL_MAPPING -600 #if !defined(KERNEL) && !defined(_KERNEL) #define ES(x) x #else #define ES(x) #endif /* * Mapping table -- please maintain in numeric sorted order with respect to * the BSM constant. Today we do a linear lookup, but could switch to a * binary search if it makes sense. We only ifdef errors that aren't * generally available, but it does make the table a lot more ugly. * * XXXRW: It would be nice to have a similar ordered table mapping to BSM * constant from local constant, but the order of local constants varies by * OS. Really we need to build that table at compile-time but don't do that * yet. * * XXXRW: We currently embed English-language error strings here, but should * support catalogues; these are only used if the OS doesn't have an error * string using strerror(3). */ static const struct bsm_errno bsm_errnos[] = { { BSM_ERRNO_ESUCCESS, 0, ES("Success") }, { BSM_ERRNO_EPERM, EPERM, ES("Operation not permitted") }, { BSM_ERRNO_ENOENT, ENOENT, ES("No such file or directory") }, { BSM_ERRNO_ESRCH, ESRCH, ES("No such process") }, { BSM_ERRNO_EINTR, EINTR, ES("Interrupted system call") }, { BSM_ERRNO_EIO, EIO, ES("Input/output error") }, { BSM_ERRNO_ENXIO, ENXIO, ES("Device not configured") }, { BSM_ERRNO_E2BIG, E2BIG, ES("Argument list too long") }, { BSM_ERRNO_ENOEXEC, ENOEXEC, ES("Exec format error") }, { BSM_ERRNO_EBADF, EBADF, ES("Bad file descriptor") }, { BSM_ERRNO_ECHILD, ECHILD, ES("No child processes") }, { BSM_ERRNO_EAGAIN, EAGAIN, ES("Resource temporarily unavailable") }, { BSM_ERRNO_ENOMEM, ENOMEM, ES("Cannot allocate memory") }, { BSM_ERRNO_EACCES, EACCES, ES("Permission denied") }, { BSM_ERRNO_EFAULT, EFAULT, ES("Bad address") }, { BSM_ERRNO_ENOTBLK, ENOTBLK, ES("Block device required") }, { BSM_ERRNO_EBUSY, EBUSY, ES("Device busy") }, { BSM_ERRNO_EEXIST, EEXIST, ES("File exists") }, { BSM_ERRNO_EXDEV, EXDEV, ES("Cross-device link") }, { BSM_ERRNO_ENODEV, ENODEV, ES("Operation not supported by device") }, { BSM_ERRNO_ENOTDIR, ENOTDIR, ES("Not a directory") }, { BSM_ERRNO_EISDIR, EISDIR, ES("Is a directory") }, { BSM_ERRNO_EINVAL, EINVAL, ES("Invalid argument") }, { BSM_ERRNO_ENFILE, ENFILE, ES("Too many open files in system") }, { BSM_ERRNO_EMFILE, EMFILE, ES("Too many open files") }, { BSM_ERRNO_ENOTTY, ENOTTY, ES("Inappropriate ioctl for device") }, { BSM_ERRNO_ETXTBSY, ETXTBSY, ES("Text file busy") }, { BSM_ERRNO_EFBIG, EFBIG, ES("File too large") }, { BSM_ERRNO_ENOSPC, ENOSPC, ES("No space left on device") }, { BSM_ERRNO_ESPIPE, ESPIPE, ES("Illegal seek") }, { BSM_ERRNO_EROFS, EROFS, ES("Read-only file system") }, { BSM_ERRNO_EMLINK, EMLINK, ES("Too many links") }, { BSM_ERRNO_EPIPE, EPIPE, ES("Broken pipe") }, { BSM_ERRNO_EDOM, EDOM, ES("Numerical argument out of domain") }, { BSM_ERRNO_ERANGE, ERANGE, ES("Result too large") }, { BSM_ERRNO_ENOMSG, ENOMSG, ES("No message of desired type") }, { BSM_ERRNO_EIDRM, EIDRM, ES("Identifier removed") }, { BSM_ERRNO_ECHRNG, #ifdef ECHRNG ECHRNG, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Channel number out of range") }, { BSM_ERRNO_EL2NSYNC, #ifdef EL2NSYNC EL2NSYNC, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Level 2 not synchronized") }, { BSM_ERRNO_EL3HLT, #ifdef EL3HLT EL3HLT, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Level 3 halted") }, { BSM_ERRNO_EL3RST, #ifdef EL3RST EL3RST, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Level 3 reset") }, { BSM_ERRNO_ELNRNG, #ifdef ELNRNG ELNRNG, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Link number out of range") }, { BSM_ERRNO_EUNATCH, #ifdef EUNATCH EUNATCH, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Protocol driver not attached") }, { BSM_ERRNO_ENOCSI, #ifdef ENOCSI ENOCSI, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("No CSI structure available") }, { BSM_ERRNO_EL2HLT, #ifdef EL2HLT EL2HLT, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Level 2 halted") }, { BSM_ERRNO_EDEADLK, EDEADLK, ES("Resource deadlock avoided") }, { BSM_ERRNO_ENOLCK, ENOLCK, ES("No locks available") }, { BSM_ERRNO_ECANCELED, ECANCELED, ES("Operation canceled") }, { BSM_ERRNO_ENOTSUP, ENOTSUP, ES("Operation not supported") }, { BSM_ERRNO_EDQUOT, EDQUOT, ES("Disc quota exceeded") }, { BSM_ERRNO_EBADE, #ifdef EBADE EBADE, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Invalid exchange") }, { BSM_ERRNO_EBADR, #ifdef EBADR EBADR, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Invalid request descriptor") }, { BSM_ERRNO_EXFULL, #ifdef EXFULL EXFULL, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Exchange full") }, { BSM_ERRNO_ENOANO, #ifdef ENOANO ENOANO, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("No anode") }, { BSM_ERRNO_EBADRQC, #ifdef EBADRQC EBADRQC, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Invalid request descriptor") }, { BSM_ERRNO_EBADSLT, #ifdef EBADSLT EBADSLT, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Invalid slot") }, { BSM_ERRNO_EDEADLOCK, #ifdef EDEADLOCK EDEADLOCK, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Resource deadlock avoided") }, { BSM_ERRNO_EBFONT, #ifdef EBFONT EBFONT, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Bad font file format") }, { BSM_ERRNO_EOWNERDEAD, #ifdef EOWNERDEAD EOWNERDEAD, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Process died with the lock") }, { BSM_ERRNO_ENOTRECOVERABLE, #ifdef ENOTRECOVERABLE ENOTRECOVERABLE, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Lock is not recoverable") }, { BSM_ERRNO_ENOSTR, #ifdef ENOSTR ENOSTR, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Device not a stream") }, { BSM_ERRNO_ENONET, #ifdef ENONET ENONET, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Machine is not on the network") }, { BSM_ERRNO_ENOPKG, #ifdef ENOPKG ENOPKG, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Package not installed") }, { BSM_ERRNO_EREMOTE, EREMOTE, ES("Too many levels of remote in path") }, { BSM_ERRNO_ENOLINK, #ifdef ENOLINK ENOLINK, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Link has been severed") }, { BSM_ERRNO_EADV, #ifdef EADV EADV, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Advertise error") }, { BSM_ERRNO_ESRMNT, #ifdef ESRMNT ESRMNT, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("srmount error") }, { BSM_ERRNO_ECOMM, #ifdef ECOMM ECOMM, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Communication error on send") }, { BSM_ERRNO_EPROTO, #ifdef EPROTO EPROTO, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Protocol error") }, { BSM_ERRNO_ELOCKUNMAPPED, #ifdef ELOCKUNMAPPED ELOCKUNMAPPED, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Locked lock was unmapped") }, { BSM_ERRNO_ENOTACTIVE, #ifdef ENOTACTIVE ENOTACTIVE, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Facility is not active") }, { BSM_ERRNO_EMULTIHOP, #ifdef EMULTIHOP EMULTIHOP, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Multihop attempted") }, { BSM_ERRNO_EBADMSG, #ifdef EBADMSG EBADMSG, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Bad message") }, { BSM_ERRNO_ENAMETOOLONG, ENAMETOOLONG, ES("File name too long") }, { BSM_ERRNO_EOVERFLOW, EOVERFLOW, ES("Value too large to be stored in data type") }, { BSM_ERRNO_ENOTUNIQ, #ifdef ENOTUNIQ ENOTUNIQ, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Given log name not unique") }, { BSM_ERRNO_EBADFD, #ifdef EBADFD EBADFD, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Given f.d. invalid for this operation") }, { BSM_ERRNO_EREMCHG, #ifdef EREMCHG EREMCHG, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Remote address changed") }, { BSM_ERRNO_ELIBACC, #ifdef ELIBACC ELIBACC, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Can't access a needed shared lib") }, { BSM_ERRNO_ELIBBAD, #ifdef ELIBBAD ELIBBAD, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Accessing a corrupted shared lib") }, { BSM_ERRNO_ELIBSCN, #ifdef ELIBSCN ELIBSCN, #else ERRNO_NO_LOCAL_MAPPING, #endif ES(".lib section in a.out corrupted") }, { BSM_ERRNO_ELIBMAX, #ifdef ELIBMAX ELIBMAX, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Attempting to link in too many libs") }, { BSM_ERRNO_ELIBEXEC, #ifdef ELIBEXEC ELIBEXEC, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Attempting to exec a shared library") }, { BSM_ERRNO_EILSEQ, EILSEQ, ES("Illegal byte sequence") }, { BSM_ERRNO_ENOSYS, ENOSYS, ES("Function not implemented") }, { BSM_ERRNO_ELOOP, ELOOP, ES("Too many levels of symbolic links") }, { BSM_ERRNO_ERESTART, #ifdef ERESTART ERESTART, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Restart syscall") }, { BSM_ERRNO_ESTRPIPE, #ifdef ESTRPIPE ESTRPIPE, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("If pipe/FIFO, don't sleep in stream head") }, { BSM_ERRNO_ENOTEMPTY, ENOTEMPTY, ES("Directory not empty") }, { BSM_ERRNO_EUSERS, EUSERS, ES("Too many users") }, { BSM_ERRNO_ENOTSOCK, ENOTSOCK, ES("Socket operation on non-socket") }, { BSM_ERRNO_EDESTADDRREQ, EDESTADDRREQ, ES("Destination address required") }, { BSM_ERRNO_EMSGSIZE, EMSGSIZE, ES("Message too long") }, { BSM_ERRNO_EPROTOTYPE, EPROTOTYPE, ES("Protocol wrong type for socket") }, { BSM_ERRNO_ENOPROTOOPT, ENOPROTOOPT, ES("Protocol not available") }, { BSM_ERRNO_EPROTONOSUPPORT, EPROTONOSUPPORT, ES("Protocol not supported") }, { BSM_ERRNO_ESOCKTNOSUPPORT, ESOCKTNOSUPPORT, ES("Socket type not supported") }, { BSM_ERRNO_EOPNOTSUPP, EOPNOTSUPP, ES("Operation not supported") }, { BSM_ERRNO_EPFNOSUPPORT, EPFNOSUPPORT, ES("Protocol family not supported") }, { BSM_ERRNO_EAFNOSUPPORT, EAFNOSUPPORT, ES("Address family not supported by protocol family") }, { BSM_ERRNO_EADDRINUSE, EADDRINUSE, ES("Address already in use") }, { BSM_ERRNO_EADDRNOTAVAIL, EADDRNOTAVAIL, ES("Can't assign requested address") }, { BSM_ERRNO_ENETDOWN, ENETDOWN, ES("Network is down") }, { BSM_ERRNO_ENETRESET, ENETRESET, ES("Network dropped connection on reset") }, { BSM_ERRNO_ECONNABORTED, ECONNABORTED, ES("Software caused connection abort") }, { BSM_ERRNO_ECONNRESET, ECONNRESET, ES("Connection reset by peer") }, { BSM_ERRNO_ENOBUFS, ENOBUFS, ES("No buffer space available") }, { BSM_ERRNO_EISCONN, EISCONN, ES("Socket is already connected") }, { BSM_ERRNO_ENOTCONN, ENOTCONN, ES("Socket is not connected") }, { BSM_ERRNO_ESHUTDOWN, ESHUTDOWN, ES("Can't send after socket shutdown") }, { BSM_ERRNO_ETOOMANYREFS, ETOOMANYREFS, ES("Too many references: can't splice") }, { BSM_ERRNO_ETIMEDOUT, ETIMEDOUT, ES("Operation timed out") }, { BSM_ERRNO_ECONNREFUSED, ECONNREFUSED, ES("Connection refused") }, { BSM_ERRNO_EHOSTDOWN, EHOSTDOWN, ES("Host is down") }, { BSM_ERRNO_EHOSTUNREACH, EHOSTUNREACH, ES("No route to host") }, { BSM_ERRNO_EALREADY, EALREADY, ES("Operation already in progress") }, { BSM_ERRNO_EINPROGRESS, EINPROGRESS, ES("Operation now in progress") }, { BSM_ERRNO_ESTALE, ESTALE, ES("Stale NFS file handle") }, { BSM_ERRNO_EQFULL, EQFULL, ES("Interface output queue is full") }, { BSM_ERRNO_EPWROFF, #ifdef EPWROFF EPWROFF, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Device power is off") }, { BSM_ERRNO_EDEVERR, #ifdef EDEVERR EDEVERR, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Device error") }, { BSM_ERRNO_EBADEXEC, #ifdef EBADEXEC EBADEXEC, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Bad executable") }, { BSM_ERRNO_EBADARCH, #ifdef EBADARCH EBADARCH, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Bad CPU type in executable") }, { BSM_ERRNO_ESHLIBVERS, #ifdef ESHLIBVERS ESHLIBVERS, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Shared library version mismatch") }, { BSM_ERRNO_EBADMACHO, #ifdef EBADMACHO EBADMACHO, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Malformed Macho file") }, { BSM_ERRNO_EPOLICY, #ifdef EPOLICY EPOLICY, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Operation failed by policy") }, { BSM_ERRNO_EDOTDOT, #ifdef EDOTDOT EDOTDOT, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("RFS specific error") }, { BSM_ERRNO_EUCLEAN, #ifdef EUCLEAN EUCLEAN, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Structure needs cleaning") }, { BSM_ERRNO_ENOTNAM, #ifdef ENOTNAM ENOTNAM, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Not a XENIX named type file") }, { BSM_ERRNO_ENAVAIL, #ifdef ENAVAIL ENAVAIL, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("No XENIX semaphores available") }, { BSM_ERRNO_EISNAM, #ifdef EISNAM EISNAM, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Is a named type file") }, { BSM_ERRNO_EREMOTEIO, #ifdef EREMOTEIO EREMOTEIO, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Remote I/O error") }, { BSM_ERRNO_ENOMEDIUM, #ifdef ENOMEDIUM ENOMEDIUM, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("No medium found") }, { BSM_ERRNO_EMEDIUMTYPE, #ifdef EMEDIUMTYPE EMEDIUMTYPE, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Wrong medium type") }, { BSM_ERRNO_ENOKEY, #ifdef ENOKEY ENOKEY, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Required key not available") }, { BSM_ERRNO_EKEYEXPIRED, #ifdef EKEEXPIRED EKEYEXPIRED, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Key has expired") }, { BSM_ERRNO_EKEYREVOKED, #ifdef EKEYREVOKED EKEYREVOKED, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Key has been revoked") }, { BSM_ERRNO_EKEYREJECTED, #ifdef EKEREJECTED EKEYREJECTED, #else ERRNO_NO_LOCAL_MAPPING, #endif ES("Key was rejected by service") }, }; static const int bsm_errnos_count = sizeof(bsm_errnos) / sizeof(bsm_errnos[0]); static const struct bsm_errno * bsm_lookup_errno_local(int local_errno) { int i; for (i = 0; i < bsm_errnos_count; i++) { if (bsm_errnos[i].be_local_errno == local_errno) return (&bsm_errnos[i]); } return (NULL); } /* * Conversion to the BSM errno space isn't allowed to fail; we simply map to * BSM_ERRNO_UNKNOWN and let the remote endpoint deal with it. */ u_char au_errno_to_bsm(int local_errno) { const struct bsm_errno *bsme; bsme = bsm_lookup_errno_local(local_errno); if (bsme == NULL) return (BSM_ERRNO_UNKNOWN); return (bsme->be_bsm_errno); } static const struct bsm_errno * bsm_lookup_errno_bsm(u_char bsm_errno) { int i; for (i = 0; i < bsm_errnos_count; i++) { if (bsm_errnos[i].be_bsm_errno == bsm_errno) return (&bsm_errnos[i]); } return (NULL); } /* * Converstion from a BSM error to a local error number may fail if either * OpenBSM doesn't recognize the error on the wire, or because there is no * appropriate local mapping. */ int au_bsm_to_errno(u_char bsm_errno, int *errorp) { const struct bsm_errno *bsme; bsme = bsm_lookup_errno_bsm(bsm_errno); if (bsme == NULL || bsme->be_local_errno == ERRNO_NO_LOCAL_MAPPING) return (-1); *errorp = bsme->be_local_errno; return (0); } #if !defined(KERNEL) && !defined(_KERNEL) const char * au_strerror(u_char bsm_errno) { const struct bsm_errno *bsme; bsme = bsm_lookup_errno_bsm(bsm_errno); if (bsme == NULL) return ("Unrecognized BSM error"); if (bsme->be_local_errno != ERRNO_NO_LOCAL_MAPPING) return (strerror(bsme->be_local_errno)); return (bsme->be_strerror); } #endif #endif /* CONFIG_AUDIT */