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https://github.com/SerenityOS/serenity
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dd59fe35c7
The whole concept of Jails was far more complicated than I actually want it to be, so let's reduce the complexity of how it works from now on. Please note that we always leaked the attach count of a Jail object in the fork syscall if it failed midway. Instead, we should have attach to the jail just before registering the new Process, so we don't need to worry about unsuccessful Process creation. The reduction of complexity in regard to jails means that instead of relying on jails to provide PID isolation, we could simplify the whole idea of them to be a simple SetOnce, and let the ProcessList (now called ScopedProcessList) to be responsible for this type of isolation. Therefore, we apply the following changes to do so: - We make the Jail concept no longer a class of its own. Instead, we simplify the idea of being jailed to a simple ProtectedValues boolean flag. This means that we no longer check of matching jail pointers anywhere in the Kernel code. To set a process as jailed, a new prctl option was added to set a Kernel SetOnce boolean flag (so it cannot change ever again). - We provide Process & Thread methods to iterate over process lists. A process can either iterate on the global process list, or if it's attached to a scoped process list, then only over that list. This essentially replaces the need of checking the Jail pointer of a process when iterating over process lists.
101 lines
6.3 KiB
C
101 lines
6.3 KiB
C
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, sin-ack <sin-ack@protonmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#define ENUMERATE_ERRNO_CODES(E) \
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E(ESUCCESS, "Success (not an error)") \
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E(EPERM, "Operation not permitted") \
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E(ENOENT, "No such file or directory") \
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E(ESRCH, "No such process") \
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E(EINTR, "Interrupted syscall") \
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E(EIO, "I/O error") \
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E(ENXIO, "No such device or address") \
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E(E2BIG, "Argument list too long") \
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E(ENOEXEC, "Exec format error") \
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E(EBADF, "Bad fd number") \
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E(ECHILD, "No child processes") \
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E(EAGAIN, "Try again") \
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E(ENOMEM, "Out of memory") \
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E(EACCES, "Permission denied") \
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E(EFAULT, "Bad address") \
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E(ENOTBLK, "Block device required") \
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E(EBUSY, "Device or resource busy") \
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E(EEXIST, "File already exists") \
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E(EXDEV, "Cross-device link") \
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E(ENODEV, "No such device") \
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E(ENOTDIR, "Not a directory") \
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E(EISDIR, "Is a directory") \
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E(EINVAL, "Invalid argument") \
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E(ENFILE, "File table overflow") \
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E(EMFILE, "Too many open files") \
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E(ENOTTY, "Not a TTY") \
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E(ETXTBSY, "Text file busy") \
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E(EFBIG, "File too large") \
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E(ENOSPC, "No space left on device") \
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E(ESPIPE, "Illegal seek") \
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E(EROFS, "Read-only filesystem") \
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E(EMLINK, "Too many links") \
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E(EPIPE, "Broken pipe") \
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E(ERANGE, "Range error") \
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E(ENAMETOOLONG, "Name too long") \
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E(ELOOP, "Too many symlinks") \
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E(EOVERFLOW, "Overflow") \
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E(EOPNOTSUPP, "Operation not supported") \
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E(ENOSYS, "No such syscall") \
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E(ENOTIMPL, "Not implemented") \
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E(EAFNOSUPPORT, "Address family not supported") \
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E(ENOTSOCK, "Not a socket") \
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E(EADDRINUSE, "Address in use") \
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E(ENOTEMPTY, "Directory not empty") \
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E(EDOM, "Math argument out of domain") \
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E(ECONNREFUSED, "Connection refused") \
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E(EHOSTDOWN, "Host is down") \
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E(EADDRNOTAVAIL, "Address not available") \
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E(EISCONN, "Already connected") \
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E(ECONNABORTED, "Connection aborted") \
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E(EALREADY, "Connection already in progress") \
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E(ECONNRESET, "Connection reset") \
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E(EDESTADDRREQ, "Destination address required") \
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E(EHOSTUNREACH, "Host unreachable") \
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E(EILSEQ, "Illegal byte sequence") \
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E(EMSGSIZE, "Message size") \
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E(ENETDOWN, "Network down") \
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E(ENETUNREACH, "Network unreachable") \
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E(ENETRESET, "Network reset") \
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E(ENOBUFS, "No buffer space") \
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E(ENOLCK, "No lock available") \
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E(ENOMSG, "No message") \
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E(ENOPROTOOPT, "No protocol option") \
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E(ENOTCONN, "Not connected") \
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E(ESHUTDOWN, "Transport endpoint has shutdown") \
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E(ETOOMANYREFS, "Too many references") \
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E(ESOCKTNOSUPPORT, "Socket type not supported") \
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E(EPROTONOSUPPORT, "Protocol not supported") \
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E(EDEADLK, "Resource deadlock would occur") \
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E(ETIMEDOUT, "Timed out") \
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E(EPROTOTYPE, "Wrong protocol type") \
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E(EINPROGRESS, "Operation in progress") \
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E(ENOTHREAD, "No such thread") \
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E(EPROTO, "Protocol error") \
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E(ENOTSUP, "Not supported") \
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E(EPFNOSUPPORT, "Protocol family not supported") \
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E(EDIRINTOSELF, "Cannot make directory a subdirectory of itself") \
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E(EDQUOT, "Quota exceeded") \
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E(ENOTRECOVERABLE, "State not recoverable") \
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E(ECANCELED, "Operation cancelled") \
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E(EPROMISEVIOLATION, "The process has a promise violation") \
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E(ESTALE, "Stale network file handle") \
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E(ESRCNOTFOUND, "System resource not found") \
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E(EMAXERRNO, "The highest errno +1 :^)")
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enum ErrnoCode {
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#define __ENUMERATE_ERRNO_CODE(c, s) c,
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ENUMERATE_ERRNO_CODES(__ENUMERATE_ERRNO_CODE)
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#undef __ENUMERATE_ERRNO_CODE
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};
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