refactor: module -> linux, src -> fuse

Makefile.am

@@ -1 +1,9 @@
-SUBDIRS = lib src module
+SUBDIRS = lib 
+
+if BUILD_FUSE
+SUBDIRS  += fuse
+endif
+
+if BUILD_LINUX
+SUBDIRS += linux
+endif

configure.ac

@@ -4,14 +4,23 @@ AM_INIT_AUTOMAKE([foreign subdir-objects])
 
 AC_CONFIG_MACRO_DIRS([m4])
 
+AC_CANONICAL_HOST
+
 AC_LANG(C)
 AC_PROG_CC
 AC_PROG_CPP
 AM_PROG_AR
 AC_PROG_INSTALL
+AC_PROG_RANLIB
 AM_PROG_CC_C_O
 
+AS_IF([ test "x$host_os" != "xmingw32" ], [
 	PKG_CHECK_MODULES([FUSE], [fuse3])
+])
+
+AM_CONDITIONAL(BUILD_FUSE, test "x$host_os" != "xmingw32")
+AM_CONDITIONAL(BUILD_LINUX, test "x$host_os" = "xlinux")
+
 
 AC_CHECK_INCLUDES_DEFAULT
 AC_C_CONST
@@ -19,7 +28,7 @@ AC_C_INLINE
 
 AC_CONFIG_FILES([Makefile
 				lib/Makefile
-				module/Makefile
-				src/Makefile])
+				linux/Makefile
+				fuse/Makefile])
 
 AC_OUTPUT

docs/book/main.tex

@@ -0,0 +1,58 @@
+\documentclass[a4paper, 12pt, openright, english]{scrbook}
+\usepackage{graphicx}
+\usepackage[utf8]{inputenc}
+\usepackage[T1]{fontenc}
+\usepackage{babel}
+\usepackage{ lmodern}
+
+\usepackage[
+  pdftitle={StupidFS},
+  pdfauthor={\@author},
+]{hyperref}
+
+\date{\today}
+\title{%
+	StupidFS Algorithm \& Data Structure \\
+	\large 1st Edition}
+\author{d0p1}
+
+\lowertitleback{Copyright \copyright{} 2022 d0p1
+    \medskip\\
+    \begin{tabular}{lp{.8\textwidth}}
+        \raisebox{-12pt}{\includegraphics[height=18pt]{fig/gfdl}} &
+        Permission is granted to copy, distribute and/or modify this document
+    under the terms of the GNU Free Documentation License, Version 1.3
+    or any later version published by the Free Software Foundation;
+    with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. \\
+    \end{tabular}
+}
+
+\begin{document}
+	\frontmatter
+	
+	\maketitle
+	\tableofcontents
+
+	\mainmatter
+
+	\chapter{Magic Numbers}
+
+	\begin{center}
+		\begin{tabular}{ |c|c|c|c| } 
+ 			\hline
+ 			\textbf{Flag} & \textbf{Hexadecimal} & \textbf{ASCII} & \textbf{Data structure}  \\ 
+			\hline
+ 			STPDFS\_SB\_MAGIC & 0x44505453 & STPD & TODO \\ 
+ 			\hline
+		\end{tabular}
+	\end{center}
+
+	\chapter{Structures}
+
+	\section{Superblocks}
+
+	
+
+	\appendix
+
+\end{document}

lib/Makefile.am

@@ -0,0 +1,2 @@
+noinst_LIBRARIES = libstpdfs.a
+libstpdfs_a_SOURCES = codec/base64.c

lib/codec/base64.c

@@ -0,0 +1,43 @@
+#include <stddef.h>
+#include <stdint.h>
+
+static const char ALPHABET[64] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+size_t
+base64_encode(char *dest, const char *src, size_t srclen)
+{
+	size_t encodedlen;
+	size_t i, j;
+	uint8_t a, b, c;
+	uint32_t triple;
+
+	encodedlen = 4 * ((srclen + 2) / 3) + 4;
+
+	if (dest == NULL)
+	{
+		return (encodedlen);
+	}
+
+	for (i = 0, j = 0; i < srclen;)
+	{
+		a = (i < srclen ? src[i++] : 0);
+		b = (i < srclen ? src[i++] : 0);
+		c = (i < srclen ? src[i++] : 0);
+
+		triple = (a << 0x10) | (b << 0x08) | c;
+
+		dest[j++] = ALPHABET[(triple >> 3 * 6) & 0x3F];
+		dest[j++] = ALPHABET[(triple >> 2 * 6) & 0x3F];
+		dest[j++] = ALPHABET[(triple >> 1 * 6) & 0x3F];
+		dest[j++] = ALPHABET[(triple >> 0 * 6) & 0x3F];
+	}
+	if (srclen % 3 != 0)
+	{
+		dest[encodedlen - 1] = '=';
+		if (srclen % 3 == 1)
+		{
+			dest[encodedlen - 2] = '='; 
+		}
+	}
+	return (encodedlen);
+}

lib/crypto/xchacha12.c

@@ -0,0 +1,57 @@
+/*
+        ; hash(h, x) (h = (h << 4) ^ x)
+
+        section '.code' code
+
+        ; xor hash, hash
+        ; xor mask, mask
+        ; j = 1
+        ; while (insz > 0)
+        ; {
+        ;    if (ecx == 8)
+        ;    {
+        ;       mov [out], mask
+        ;       xor ecx, ecx
+        ;       xor mask, mask
+        ;       j = 1;
+        ;    }
+        ;    c = in[inpos++]
+        ;    if (c == table[hash])
+        ;    {
+        ;        mask |= 1 << ecx
+        ;    }
+        ;    else
+        ;    {
+        ;        table[hash] = c
+        ;        out[j] = c;
+        ;    }
+        ;    HASH(hash, c)
+        ;    ecx++;
+        ; }
+*/
+#include <stdint.h>
+
+#define LZP_HASH_ORDER 16
+#define LZP_HASH_SIZE  (1 << LZP_HASH_ORDER)
+
+#define HASH(h, x) ((h << 4) ^ x)
+
+void
+lzp_compress()
+{
+	uint32_t hash = 0;
+	uint32_t mask = 0;
+	char c;
+	uint8_t table[LZP_HASH_SIZE] = { 0 };
+
+	while (1)
+	{
+		hash = HASH(hash, c);
+	}
+}
+
+void
+lzp_decompress()
+{
+	
+}

lib/stpdfs.h

@@ -1,12 +1,25 @@
+#include <cstdint>
 #ifndef STPDFS_H
 # define STPDFS_H 1
 
 # include <stdint.h>
 
-#define STPDFS_MAGIC 0x44505453
+# define STPDFS_SB_MAGIC 0x44505453
 
 # define STPDFS_BLOCK_SIZE 512
 
+# define STPDFS_LZP_COMPRESSION (1 << 0)
+# define STPDFS_FILE_ENCRYPTION (1 << 1)
+
+typedef uint32_t stpdfs_addr_t;
+typedef uint32_t stpdfs_off_t;
+typedef uint64_t stpdfs_time_t;
+
+struct stpdfs_free {
+	uint32_t free[100];
+	uint8_t nfree;
+} __attribute__((packed));
+
 /**
  * \brief StupidFS Superblock
  */
@@ -22,4 +35,27 @@ struct stpdfs_sb {
 	uint32_t time[2];
 } __attribute__((packed));
 
+/**
+ * \brief StupidFS I-node
+ */
+struct inode {
+	uint16_t mode;
+	uint8_t nlink;
+	uint8_t uid;
+	uint8_t gid;
+	uint32_t size;
+	uint16_t addr[8];
+	uint32_t actime[2];
+	uint32_t modtime[2];
+} __attribute__((packed));
+
+#define INODE_SIZE sizeof(struct inode)
+
+struct file {
+	uint32_t inode;
+	char filename[32];
+};
+
+
+
 #endif /* !STPDFS_H */

linux/Makefile.automake

@@ -0,0 +1,610 @@
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+# linux/Makefile.  Generated from Makefile.in by configure.
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
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+
+
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+
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+	-rm -f *.tab.c
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+
+$(am__depfiles_remade):
+	@$(MKDIR_P) $(@D)
+	@echo '# dummy' >$@-t && $(am__mv) $@-t $@
+
+am--depfiles: $(am__depfiles_remade)
+
+.c.o:
+	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+	$(am__mv) $$depbase.Tpo $$depbase.Po
+#	$(AM_V_CC)source='$<' object='$@' libtool=no \
+#	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) \
+#	$(AM_V_CC_no)$(COMPILE) -c -o $@ $<
+
+.c.obj:
+	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+	$(am__mv) $$depbase.Tpo $$depbase.Po
+#	$(AM_V_CC)source='$<' object='$@' libtool=no \
+#	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) \
+#	$(AM_V_CC_no)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+install-moduleDATA: $(module_DATA)
+	@$(NORMAL_INSTALL)
+	@list='$(module_DATA)'; test -n "$(moduledir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(moduledir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(moduledir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(moduledir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(moduledir)" || exit $$?; \
+	done
+
+uninstall-moduleDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(module_DATA)'; test -n "$(moduledir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	dir='$(DESTDIR)$(moduledir)'; $(am__uninstall_files_from_dir)
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(DATA)
+installdirs:
+	for dir in "$(DESTDIR)$(moduledir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
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+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
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+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic mostlyclean-am
+
+distclean: distclean-am
+		-rm -f ./$(DEPDIR)/module.Po
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
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+info: info-am
+
+info-am:
+
+install-data-am: install-moduleDATA
+
+install-dvi: install-dvi-am
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+install-dvi-am:
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+install-exec-am:
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+install-html: install-html-am
+
+install-html-am:
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+install-info-am:
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+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+		-rm -f ./$(DEPDIR)/module.Po
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-moduleDATA
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+	clean-generic cscopelist-am ctags ctags-am distclean \
+	distclean-compile distclean-generic distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-moduleDATA \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am uninstall-moduleDATA
+
+.PRECIOUS: Makefile
+
+
+export module_DATA
+
+$(module_DATA): $(stpdfs_module_SOURCES) 
+	mv Makefile Makefile.automake 
+	cp $(srcdir)/../Makefile.kernel Makefile 
+	CPPFLAGS="" CFLAGS="" LDFLAGS="" \
+	$(MAKE) -C /lib/modules/$(shell uname -r)/build \
+        ARCH="x86" CC="gcc" M=$(PWD) modules\
+		KBUILD_VERBOSE=$(KBUILD_VERBOSE) 
+	mv Makefile.automake Makefile 
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

mkfs/main.c

@@ -0,0 +1,16 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+static const char *prg_name;
+
+void
+usage(int retval)
+{
+
+}
+
+int
+main(void)
+{
+	return (EXIT_SUCCESS);
+}