diff --git a/vppinfra/unix_error.def b/vppinfra/unix_error.def
new file mode 100644
index 0000000..76633db
--- /dev/null
+++ b/vppinfra/unix_error.def
@@ -0,0 +1,145 @@
+/*
+  Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
+
+  Permission is hereby granted, free of charge, to any person obtaining
+  a copy of this software and associated documentation files (the
+  "Software"), to deal in the Software without restriction, including
+  without limitation the rights to use, copy, modify, merge, publish,
+  distribute, sublicense, and/or sell copies of the Software, and to
+  permit persons to whom the Software is furnished to do so, subject to
+  the following conditions:
+
+  The above copyright notice and this permission notice shall be
+  included in all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+_ (EPERM, "Operation not permitted")
+_ (ENOENT, "No such file or directory")
+_ (ESRCH, "No such process")
+_ (EINTR, "Interrupted system call")
+_ (EIO, "I/O error")
+_ (ENXIO, "No such device or address")
+_ (E2BIG, "Arg list too long")
+_ (ENOEXEC, "Exec format error")
+_ (EBADF, "Bad file number")
+_ (ECHILD, "No child processes")
+_ (ENOMEM, "Out of memory")
+_ (EACCES, "Permission denied")
+_ (EFAULT, "Bad address")
+_ (ENOTBLK, "Block device required")
+_ (EBUSY, "Device or resource busy")
+_ (EEXIST, "File exists")
+_ (EXDEV, "Cross-device link")
+_ (ENODEV, "No such device")
+_ (ENOTDIR, "Not a directory")
+_ (EISDIR, "Is a directory")
+_ (EINVAL, "Invalid argument")
+_ (ENFILE, "File table overflow")
+_ (EMFILE, "Too many open files")
+_ (ENOTTY, "Not a typewriter")
+_ (ETXTBSY, "Text file busy")
+_ (EFBIG, "File too large")
+_ (ENOSPC, "No space left on device")
+_ (ESPIPE, "Illegal seek")
+_ (EROFS, "Read-only file system")
+_ (EMLINK, "Too many links")
+_ (EPIPE, "Broken pipe")
+_ (EDOM, "Math argument out of domain of func")
+_ (ERANGE, "Math result not representable")
+_ (EDEADLK, "Resource deadlock would occur")
+_ (ENAMETOOLONG, "File name too long")
+_ (ENOLCK, "No record locks available")
+_ (ENOSYS, "Function not implemented")
+_ (ENOTEMPTY, "Directory not empty")
+_ (ELOOP, "Too many symbolic links encountered")
+_ (EWOULDBLOCK, "Operation would block")
+_ (ENOMSG, "No message of desired type")
+_ (EIDRM, "Identifier removed")
+_ (ECHRNG, "Channel number out of range")
+_ (EL2NSYNC, "Level 2 not synchronized")
+_ (EL3HLT, "Level 3 halted")
+_ (EL3RST, "Level 3 reset")
+_ (ELNRNG, "Link number out of range")
+_ (EUNATCH, "Protocol driver not attached")
+_ (ENOCSI, "No CSI structure available")
+_ (EL2HLT, "Level 2 halted")
+_ (EBADE, "Invalid exchange")
+_ (EBADR, "Invalid request descriptor")
+_ (EXFULL, "Exchange full")
+_ (ENOANO, "No anode")
+_ (EBADRQC, "Invalid request code")
+_ (EBADSLT, "Invalid slot")
+_ (EBFONT, "Bad font file format")
+_ (ENOSTR, "Device not a stream")
+_ (ENODATA, "No data available")
+_ (ETIME, "Timer expired")
+_ (ENOSR, "Out of streams resources")
+_ (ENONET, "Machine is not on the network")
+_ (ENOPKG, "Package not installed")
+_ (EREMOTE, "Object is remote")
+_ (ENOLINK, "Link has been severed")
+_ (EADV, "Advertise error")
+_ (ESRMNT, "Srmount error")
+_ (ECOMM, "Communication error on send")
+_ (EPROTO, "Protocol error")
+_ (EMULTIHOP, "Multihop attempted")
+_ (EDOTDOT, "RFS specific error")
+_ (EBADMSG, "Not a data message")
+_ (EOVERFLOW, "Value too large for defined data type")
+_ (ENOTUNIQ, "Name not unique on network")
+_ (EBADFD, "File descriptor in bad state")
+_ (EREMCHG, "Remote address changed")
+_ (ELIBACC, "Can not access a needed shared library")
+_ (ELIBBAD, "Accessing a corrupted shared library")
+_ (ELIBSCN, "lib section in a.out corrupted")
+_ (ELIBMAX, "Attempting to link in too many shared libraries")
+_ (ELIBEXEC, "Cannot exec a shared library directly")
+_ (EILSEQ, "Illegal byte sequence")
+_ (ERESTART, "Interrupted system call should be restarted")
+_ (ESTRPIPE, "Streams pipe error")
+_ (EUSERS, "Too many users")
+_ (ENOTSOCK, "Socket operation on non-socket")
+_ (EDESTADDRREQ, "Destination address required")
+_ (EMSGSIZE, "Message too long")
+_ (EPROTOTYPE, "Protocol wrong type for socket")
+_ (ENOPROTOOPT, "Protocol not available")
+_ (EPROTONOSUPPORT, "Protocol not supported")
+_ (ESOCKTNOSUPPORT, "Socket type not supported")
+_ (EOPNOTSUPP, "Operation not supported on transport endpoint")
+_ (EPFNOSUPPORT, "Protocol family not supported")
+_ (EAFNOSUPPORT, "Address family not supported by protocol")
+_ (EADDRINUSE, "Address already in use")
+_ (EADDRNOTAVAIL, "Cannot assign requested address")
+_ (ENETDOWN, "Network is down")
+_ (ENETUNREACH, "Network is unreachable")
+_ (ENETRESET, "Network dropped connection because of reset")
+_ (ECONNABORTED, "Software caused connection abort")
+_ (ECONNRESET, "Connection reset by peer")
+_ (ENOBUFS, "No buffer space available")
+_ (EISCONN, "Transport endpoint is already connected")
+_ (ENOTCONN, "Transport endpoint is not connected")
+_ (ESHUTDOWN, "Cannot send after transport endpoint shutdown")
+_ (ETOOMANYREFS, "Too many references: cannot splice")
+_ (ETIMEDOUT, "Connection timed out")
+_ (ECONNREFUSED, "Connection refused")
+_ (EHOSTDOWN, "Host is down")
+_ (EHOSTUNREACH, "No route to host")
+_ (EALREADY, "Operation already in progress")
+_ (EINPROGRESS, "Operation now in progress")
+_ (ESTALE, "Stale NFS file handle")
+_ (EUCLEAN, "Structure needs cleaning")
+_ (ENOTNAM, "Not a XENIX named type file")
+_ (ENAVAIL, "No XENIX semaphores available")
+_ (EISNAM, "Is a named type file")
+_ (EREMOTEIO, "Remote I/O error")
+_ (EDQUOT, "Quota exceeded")
+_ (ENOMEDIUM, "No medium found")
+_ (EMEDIUMTYPE, "Wrong medium type")