diff options
Diffstat (limited to 'pkg/linuxerr')
| -rw-r--r-- | pkg/linuxerr/BUILD | 20 | ||||
| -rw-r--r-- | pkg/linuxerr/linuxerr.go | 184 | ||||
| -rw-r--r-- | pkg/linuxerr/linuxerr_test.go | 164 |
3 files changed, 0 insertions, 368 deletions
diff --git a/pkg/linuxerr/BUILD b/pkg/linuxerr/BUILD deleted file mode 100644 index c5abbd34f..000000000 --- a/pkg/linuxerr/BUILD +++ /dev/null @@ -1,20 +0,0 @@ -load("//tools:defs.bzl", "go_library", "go_test") - -package(licenses = ["notice"]) - -go_library( - name = "linuxerr", - srcs = ["linuxerr.go"], - visibility = ["//visibility:public"], - deps = ["//pkg/abi/linux"], -) - -go_test( - name = "linuxerr_test", - srcs = ["linuxerr_test.go"], - deps = [ - ":linuxerr", - "//pkg/syserror", - "@org_golang_x_sys//unix:go_default_library", - ], -) diff --git a/pkg/linuxerr/linuxerr.go b/pkg/linuxerr/linuxerr.go deleted file mode 100644 index f45caaadf..000000000 --- a/pkg/linuxerr/linuxerr.go +++ /dev/null @@ -1,184 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package linuxerr contains syscall error codes exported as an error interface -// pointers. This allows for fast comparison and return operations comperable -// to unix.Errno constants. -package linuxerr - -import ( - "gvisor.dev/gvisor/pkg/abi/linux" -) - -// Error represents a syscall errno with a descriptive message. -type Error struct { - errno linux.Errno - message string -} - -func new(err linux.Errno, message string) *Error { - return &Error{ - errno: err, - message: message, - } -} - -// Error implements error.Error. -func (e *Error) Error() string { return e.message } - -// Errno returns the underlying linux.Errno value. -func (e *Error) Errno() linux.Errno { return e.errno } - -// The following varables have the same meaning as their errno equivalent. - -// Errno values from include/uapi/asm-generic/errno-base.h. -var ( - EPERM = new(linux.EPERM, "operation not permitted") - ENOENT = new(linux.ENOENT, "no such file or directory") - ESRCH = new(linux.ESRCH, "no such process") - EINTR = new(linux.EINTR, "interrupted system call") - EIO = new(linux.EIO, "I/O error") - ENXIO = new(linux.ENXIO, "no such device or address") - E2BIG = new(linux.E2BIG, "argument list too long") - ENOEXEC = new(linux.ENOEXEC, "exec format error") - EBADF = new(linux.EBADF, "bad file number") - ECHILD = new(linux.ECHILD, "no child processes") - EAGAIN = new(linux.EAGAIN, "try again") - ENOMEM = new(linux.ENOMEM, "out of memory") - EACCES = new(linux.EACCES, "permission denied") - EFAULT = new(linux.EFAULT, "bad address") - ENOTBLK = new(linux.ENOTBLK, "block device required") - EBUSY = new(linux.EBUSY, "device or resource busy") - EEXIST = new(linux.EEXIST, "file exists") - EXDEV = new(linux.EXDEV, "cross-device link") - ENODEV = new(linux.ENODEV, "no such device") - ENOTDIR = new(linux.ENOTDIR, "not a directory") - EISDIR = new(linux.EISDIR, "is a directory") - EINVAL = new(linux.EINVAL, "invalid argument") - ENFILE = new(linux.ENFILE, "file table overflow") - EMFILE = new(linux.EMFILE, "too many open files") - ENOTTY = new(linux.ENOTTY, "not a typewriter") - ETXTBSY = new(linux.ETXTBSY, "text file busy") - EFBIG = new(linux.EFBIG, "file too large") - ENOSPC = new(linux.ENOSPC, "no space left on device") - ESPIPE = new(linux.ESPIPE, "illegal seek") - EROFS = new(linux.EROFS, "read-only file system") - EMLINK = new(linux.EMLINK, "too many links") - EPIPE = new(linux.EPIPE, "broken pipe") - EDOM = new(linux.EDOM, "math argument out of domain of func") - ERANGE = new(linux.ERANGE, "math result not representable") -) - -// Errno values from include/uapi/asm-generic/errno.h. -var ( - EDEADLK = new(linux.EDEADLK, "resource deadlock would occur") - ENAMETOOLONG = new(linux.ENAMETOOLONG, "file name too long") - ENOLCK = new(linux.ENOLCK, "no record locks available") - ENOSYS = new(linux.ENOSYS, "invalid system call number") - ENOTEMPTY = new(linux.ENOTEMPTY, "directory not empty") - ELOOP = new(linux.ELOOP, "too many symbolic links encountered") - EWOULDBLOCK = new(linux.EWOULDBLOCK, "operation would block") - ENOMSG = new(linux.ENOMSG, "no message of desired type") - EIDRM = new(linux.EIDRM, "identifier removed") - ECHRNG = new(linux.ECHRNG, "channel number out of range") - EL2NSYNC = new(linux.EL2NSYNC, "level 2 not synchronized") - EL3HLT = new(linux.EL3HLT, "level 3 halted") - EL3RST = new(linux.EL3RST, "level 3 reset") - ELNRNG = new(linux.ELNRNG, "link number out of range") - EUNATCH = new(linux.EUNATCH, "protocol driver not attached") - ENOCSI = new(linux.ENOCSI, "no CSI structure available") - EL2HLT = new(linux.EL2HLT, "level 2 halted") - EBADE = new(linux.EBADE, "invalid exchange") - EBADR = new(linux.EBADR, "invalid request descriptor") - EXFULL = new(linux.EXFULL, "exchange full") - ENOANO = new(linux.ENOANO, "no anode") - EBADRQC = new(linux.EBADRQC, "invalid request code") - EBADSLT = new(linux.EBADSLT, "invalid slot") - EDEADLOCK = new(linux.EDEADLOCK, EDEADLK.message) - EBFONT = new(linux.EBFONT, "bad font file format") - ENOSTR = new(linux.ENOSTR, "device not a stream") - ENODATA = new(linux.ENODATA, "no data available") - ETIME = new(linux.ETIME, "timer expired") - ENOSR = new(linux.ENOSR, "out of streams resources") - ENONET = new(linux.ENOENT, "machine is not on the network") - ENOPKG = new(linux.ENOPKG, "package not installed") - EREMOTE = new(linux.EREMOTE, "object is remote") - ENOLINK = new(linux.ENOLINK, "link has been severed") - EADV = new(linux.EADV, "advertise error") - ESRMNT = new(linux.ESRMNT, "srmount error") - ECOMM = new(linux.ECOMM, "communication error on send") - EPROTO = new(linux.EPROTO, "protocol error") - EMULTIHOP = new(linux.EMULTIHOP, "multihop attempted") - EDOTDOT = new(linux.EDOTDOT, "RFS specific error") - EBADMSG = new(linux.EBADMSG, "not a data message") - EOVERFLOW = new(linux.EOVERFLOW, "value too large for defined data type") - ENOTUNIQ = new(linux.ENOTUNIQ, "name not unique on network") - EBADFD = new(linux.EBADFD, "file descriptor in bad state") - EREMCHG = new(linux.EREMCHG, "remote address changed") - ELIBACC = new(linux.ELIBACC, "can not access a needed shared library") - ELIBBAD = new(linux.ELIBBAD, "accessing a corrupted shared library") - ELIBSCN = new(linux.ELIBSCN, ".lib section in a.out corrupted") - ELIBMAX = new(linux.ELIBMAX, "attempting to link in too many shared libraries") - ELIBEXEC = new(linux.ELIBEXEC, "cannot exec a shared library directly") - EILSEQ = new(linux.EILSEQ, "illegal byte sequence") - ERESTART = new(linux.ERESTART, "interrupted system call should be restarted") - ESTRPIPE = new(linux.ESTRPIPE, "streams pipe error") - EUSERS = new(linux.EUSERS, "too many users") - ENOTSOCK = new(linux.ENOTSOCK, "socket operation on non-socket") - EDESTADDRREQ = new(linux.EDESTADDRREQ, "destination address required") - EMSGSIZE = new(linux.EMSGSIZE, "message too long") - EPROTOTYPE = new(linux.EPROTOTYPE, "protocol wrong type for socket") - ENOPROTOOPT = new(linux.ENOPROTOOPT, "protocol not available") - EPROTONOSUPPORT = new(linux.EPROTONOSUPPORT, "protocol not supported") - ESOCKTNOSUPPORT = new(linux.ESOCKTNOSUPPORT, "socket type not supported") - EOPNOTSUPP = new(linux.EOPNOTSUPP, "operation not supported on transport endpoint") - EPFNOSUPPORT = new(linux.EPFNOSUPPORT, "protocol family not supported") - EAFNOSUPPORT = new(linux.EAFNOSUPPORT, "address family not supported by protocol") - EADDRINUSE = new(linux.EADDRINUSE, "address already in use") - EADDRNOTAVAIL = new(linux.EADDRNOTAVAIL, "cannot assign requested address") - ENETDOWN = new(linux.ENETDOWN, "network is down") - ENETUNREACH = new(linux.ENETUNREACH, "network is unreachable") - ENETRESET = new(linux.ENETRESET, "network dropped connection because of reset") - ECONNABORTED = new(linux.ECONNABORTED, "software caused connection abort") - ECONNRESET = new(linux.ECONNRESET, "connection reset by peer") - ENOBUFS = new(linux.ENOBUFS, "no buffer space available") - EISCONN = new(linux.EISCONN, "transport endpoint is already connected") - ENOTCONN = new(linux.ENOTCONN, "transport endpoint is not connected") - ESHUTDOWN = new(linux.ESHUTDOWN, "cannot send after transport endpoint shutdown") - ETOOMANYREFS = new(linux.ETOOMANYREFS, "too many references: cannot splice") - ETIMEDOUT = new(linux.ETIMEDOUT, "connection timed out") - ECONNREFUSED = new(linux.ECONNREFUSED, "connection refused") - EHOSTDOWN = new(linux.EHOSTDOWN, "host is down") - EHOSTUNREACH = new(linux.EHOSTUNREACH, "no route to host") - EALREADY = new(linux.EALREADY, "operation already in progress") - EINPROGRESS = new(linux.EINPROGRESS, "operation now in progress") - ESTALE = new(linux.ESTALE, "stale file handle") - EUCLEAN = new(linux.EUCLEAN, "structure needs cleaning") - ENOTNAM = new(linux.ENOTNAM, "not a XENIX named type file") - ENAVAIL = new(linux.ENAVAIL, "no XENIX semaphores available") - EISNAM = new(linux.EISNAM, "is a named type file") - EREMOTEIO = new(linux.EREMOTEIO, "remote I/O error") - EDQUOT = new(linux.EDQUOT, "quota exceeded") - ENOMEDIUM = new(linux.ENOMEDIUM, "no medium found") - EMEDIUMTYPE = new(linux.EMEDIUMTYPE, "wrong medium type") - ECANCELED = new(linux.ECANCELED, "operation Canceled") - ENOKEY = new(linux.ENOKEY, "required key not available") - EKEYEXPIRED = new(linux.EKEYEXPIRED, "key has expired") - EKEYREVOKED = new(linux.EKEYREVOKED, "key has been revoked") - EKEYREJECTED = new(linux.EKEYREJECTED, "key was rejected by service") - EOWNERDEAD = new(linux.EOWNERDEAD, "owner died") - ENOTRECOVERABLE = new(linux.ENOTRECOVERABLE, "state not recoverable") - ERFKILL = new(linux.ERFKILL, "operation not possible due to RF-kill") - EHWPOISON = new(linux.EHWPOISON, "memory page has hardware error") -) diff --git a/pkg/linuxerr/linuxerr_test.go b/pkg/linuxerr/linuxerr_test.go deleted file mode 100644 index d34937e93..000000000 --- a/pkg/linuxerr/linuxerr_test.go +++ /dev/null @@ -1,164 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package syserror_test - -import ( - "errors" - "testing" - - "golang.org/x/sys/unix" - "gvisor.dev/gvisor/pkg/linuxerr" - "gvisor.dev/gvisor/pkg/syserror" -) - -var globalError error - -func BenchmarkAssignErrno(b *testing.B) { - for i := b.N; i > 0; i-- { - globalError = unix.EINVAL - } -} - -func BenchmarkLinuxerrAssignError(b *testing.B) { - for i := b.N; i > 0; i-- { - globalError = linuxerr.EINVAL - } -} - -func BenchmarkAssignSyserrorError(b *testing.B) { - for i := b.N; i > 0; i-- { - globalError = syserror.EINVAL - } -} - -func BenchmarkCompareErrno(b *testing.B) { - globalError = unix.EAGAIN - j := 0 - for i := b.N; i > 0; i-- { - if globalError == unix.EINVAL { - j++ - } - } -} - -func BenchmarkCompareLinuxerrError(b *testing.B) { - globalError = linuxerr.E2BIG - j := 0 - for i := b.N; i > 0; i-- { - if globalError == linuxerr.EINVAL { - j++ - } - } -} - -func BenchmarkCompareSyserrorError(b *testing.B) { - globalError = syserror.EAGAIN - j := 0 - for i := b.N; i > 0; i-- { - if globalError == syserror.EINVAL { - j++ - } - } -} - -func BenchmarkSwitchErrno(b *testing.B) { - globalError = unix.EPERM - j := 0 - for i := b.N; i > 0; i-- { - switch globalError { - case unix.EINVAL: - j++ - case unix.EINTR: - j += 2 - case unix.EAGAIN: - j += 3 - } - } -} - -func BenchmarkSwitchLinuxerrError(b *testing.B) { - globalError = linuxerr.EPERM - j := 0 - for i := b.N; i > 0; i-- { - switch globalError { - case linuxerr.EINVAL: - j++ - case linuxerr.EINTR: - j += 2 - case linuxerr.EAGAIN: - j += 3 - } - } -} - -func BenchmarkSwitchSyserrorError(b *testing.B) { - globalError = syserror.EPERM - j := 0 - for i := b.N; i > 0; i-- { - switch globalError { - case syserror.EINVAL: - j++ - case syserror.EINTR: - j += 2 - case syserror.EAGAIN: - j += 3 - } - } -} - -type translationTestTable struct { - fn string - errIn error - syscallErrorIn unix.Errno - expectedBool bool - expectedTranslation unix.Errno -} - -func TestErrorTranslation(t *testing.T) { - myError := errors.New("My test error") - myError2 := errors.New("Another test error") - testTable := []translationTestTable{ - {"TranslateError", myError, 0, false, 0}, - {"TranslateError", myError2, 0, false, 0}, - {"AddErrorTranslation", myError, unix.EAGAIN, true, 0}, - {"AddErrorTranslation", myError, unix.EAGAIN, false, 0}, - {"AddErrorTranslation", myError, unix.EPERM, false, 0}, - {"TranslateError", myError, 0, true, unix.EAGAIN}, - {"TranslateError", myError2, 0, false, 0}, - {"AddErrorTranslation", myError2, unix.EPERM, true, 0}, - {"AddErrorTranslation", myError2, unix.EPERM, false, 0}, - {"AddErrorTranslation", myError2, unix.EAGAIN, false, 0}, - {"TranslateError", myError, 0, true, unix.EAGAIN}, - {"TranslateError", myError2, 0, true, unix.EPERM}, - } - for _, tt := range testTable { - switch tt.fn { - case "TranslateError": - err, ok := syserror.TranslateError(tt.errIn) - if ok != tt.expectedBool { - t.Fatalf("%v(%v) => %v expected %v", tt.fn, tt.errIn, ok, tt.expectedBool) - } else if err != tt.expectedTranslation { - t.Fatalf("%v(%v) (error) => %v expected %v", tt.fn, tt.errIn, err, tt.expectedTranslation) - } - case "AddErrorTranslation": - ok := syserror.AddErrorTranslation(tt.errIn, tt.syscallErrorIn) - if ok != tt.expectedBool { - t.Fatalf("%v(%v) => %v expected %v", tt.fn, tt.errIn, ok, tt.expectedBool) - } - default: - t.Fatalf("Unknown function %v", tt.fn) - } - } -} |