00001 #ifndef ETC_FSTAB_H
00002 #define ETC_FSTAB_H
00003
00004 #include <string>
00005 #include <list>
00006 #include <map>
00007
00008 #include "y2storage/StorageInterface.h"
00009 #include "y2storage/AppUtil.h"
00010
00011 namespace storage
00012 {
00013
00014 class AsciiFile;
00015 struct FstabChange;
00016
00017 struct FstabEntry
00018 {
00019 FstabEntry() { freq=passno=0;
00020 crypto=cryptt=loop=noauto=dmcrypt=tmpcrypt=false;
00021 encr=storage::ENC_NONE; mount_by=storage::MOUNTBY_DEVICE; }
00022 FstabEntry& operator=( const FstabChange& rhs );
00023 friend std::ostream& operator<< (std::ostream& s, const FstabEntry &v );
00024
00025 string device;
00026 string dentry;
00027 string mount;
00028 string fs;
00029 std::list<string> opts;
00030 int freq;
00031 int passno;
00032 bool loop;
00033 bool dmcrypt;
00034 bool noauto;
00035 bool crypto;
00036 bool cryptt;
00037 bool tmpcrypt;
00038 string loop_dev;
00039 string cr_opts;
00040 string cr_key;
00041 storage::EncryptType encr;
00042 storage::MountByType mount_by;
00043
00044 void calcDependent();
00045 };
00046
00047 inline std::ostream& operator<< (std::ostream& s, const FstabEntry &v )
00048 {
00049 s << "device:" << v.device
00050 << " dentry:" << v.dentry << " mount:" << v.mount
00051 << " fs:" << v.fs << " opts:" << mergeString( v.opts, "," )
00052 << " freq:" << v.freq << " passno:" << v.passno;
00053 if( v.noauto )
00054 s << " noauto";
00055 if( v.crypto )
00056 s << " crypto";
00057 if( v.cryptt )
00058 s << " cryptt";
00059 if( v.tmpcrypt )
00060 s << " tmpcrypt";
00061 if( v.loop )
00062 s << " loop";
00063 if( v.dmcrypt )
00064 s << " dmcrypt";
00065 if( !v.loop_dev.empty() )
00066 s << " loop_dev:" << v.loop_dev;
00067 if( !v.cr_key.empty() )
00068 s << " cr_key:" << v.cr_key;
00069 if( !v.cr_opts.empty() )
00070 s << " cr_opts:" << v.cr_opts;
00071 if( v.encr != storage::ENC_NONE )
00072 s << " encr:" << v.encr;
00073 return( s );
00074 }
00075
00076 struct FstabChange
00077 {
00078 FstabChange() { freq=passno=0; encr=storage::ENC_NONE; tmpcrypt=false; }
00079 FstabChange( const FstabEntry& e ) { *this = e; }
00080 FstabChange& operator=( const FstabEntry& rhs )
00081 {
00082 device = rhs.device;
00083 dentry = rhs.dentry; mount = rhs.mount; fs = rhs.fs;
00084 opts = rhs.opts; freq = rhs.freq; passno = rhs.passno;
00085 loop_dev = rhs.loop_dev; encr = rhs.encr;
00086 tmpcrypt = rhs.tmpcrypt;
00087 return( *this );
00088 }
00089 friend std::ostream& operator<< (std::ostream& s, const FstabChange &v );
00090 string device;
00091 string dentry;
00092 string mount;
00093 string fs;
00094 std::list<string> opts;
00095 int freq;
00096 int passno;
00097 string loop_dev;
00098 storage::EncryptType encr;
00099 bool tmpcrypt;
00100 };
00101
00102 inline FstabEntry& FstabEntry::operator=( const FstabChange& rhs )
00103 {
00104 device = rhs.device;
00105 dentry = rhs.dentry; mount = rhs.mount; fs = rhs.fs;
00106 opts = rhs.opts; freq = rhs.freq; passno = rhs.passno;
00107 loop_dev = rhs.loop_dev; encr = rhs.encr;
00108 tmpcrypt = rhs.tmpcrypt;
00109 calcDependent();
00110 return( *this );
00111 }
00112
00113 inline std::ostream& operator<< (std::ostream& s, const FstabChange &v )
00114 {
00115 s << "device:" << v.device
00116 << " dentry:" << v.dentry << " mount:" << v.mount
00117 << " fs:" << v.fs << " opts:" << mergeString( v.opts, "," )
00118 << " freq:" << v.freq << " passno:" << v.passno;
00119 if( !v.loop_dev.empty() )
00120 s << " loop_dev:" << v.loop_dev;
00121 if( v.encr != storage::ENC_NONE )
00122 s << " encr:" << v.encr;
00123 if( v.tmpcrypt )
00124 s << " tmpcrypt";
00125 return( s );
00126 }
00127
00128 class EtcFstab
00129 {
00130 public:
00131 EtcFstab( const string& prefix = "", bool rootMounted=true );
00132 bool findDevice( const string& dev, FstabEntry& entry ) const;
00133 bool findDevice( const std::list<string>& dl, FstabEntry& entry ) const;
00134 bool findMount( const string& mount, FstabEntry& entry ) const;
00135 bool findUuidLabel( const string& uuid, const string& label,
00136 FstabEntry& entry ) const;
00137 bool findIdPath( const std::list<string>& id, const string& path,
00138 FstabEntry& entry ) const;
00139 void setDevice( const FstabEntry& entry, const string& device );
00140 int updateEntry( const string& dev, const string& mount,
00141 const string& fs, const string& opts="defaults" );
00142 int updateEntry( const FstabChange& entry );
00143 int addEntry( const FstabChange& entry );
00144 int removeEntry( const FstabEntry& entry );
00145 int changeRootPrefix( const string& prfix );
00146 void getFileBasedLoops( const string& prefix, std::list<FstabEntry>& l );
00147 void getEntries( std::list<FstabEntry>& l );
00148 string addText( bool doing, bool crypto, const string& mp );
00149 string updateText( bool doing, bool crypto, const string& mp );
00150 string removeText( bool doing, bool crypto, const string& mp );
00151 int flush();
00152 int findPrefix( const AsciiFile& tab, const string& mount );
00153
00154 protected:
00155 struct Entry
00156 {
00157 enum operation { NONE, ADD, REMOVE, UPDATE };
00158 Entry() { op=NONE; }
00159 operation op;
00160 FstabEntry nnew;
00161 FstabEntry old;
00162 };
00163
00164 void readFiles();
00165 AsciiFile* findFile( const FstabEntry& e, AsciiFile*& fstab,
00166 AsciiFile*& cryptotab, int& lineno );
00167 bool findCrtab( const FstabEntry& e, const AsciiFile& crtab,
00168 int& lineno );
00169 bool findCrtab( const string& device, const AsciiFile& crtab,
00170 int& lineno );
00171 void makeStringList( const FstabEntry& e, std::list<string>& ls );
00172 void makeCrtabStringList( const FstabEntry& e, std::list<string>& ls );
00173 string updateLine( const std::list<string>& ol,
00174 const std::list<string>& nl, const string& line );
00175 string createLine( const std::list<string>& ls, unsigned fields,
00176 unsigned* flen );
00177 string createTabLine( const FstabEntry& e );
00178 void makeCrStringList( const FstabEntry& e, std::list<string>& ls );
00179 string createCrtabLine( const FstabEntry& e );
00180
00181 static unsigned fstabFields[6];
00182 static unsigned cryptotabFields[6];
00183 static unsigned crypttabFields[6];
00184
00185 string prefix;
00186 std::list<Entry> co;
00187 };
00188
00189 }
00190
00191 #endif
