+++ /dev/null
-/*
- * Acess 2
- * Architecture Independent System Init
- * system.c
- */
-#define DEBUG 0
-#include <acess.h>
-
-// === TYPES ===
-typedef struct
-{
- int TrueLine;
- int nParts;
- char **Parts;
-} tConfigLine;
-typedef struct
-{
- int nLines;
- tConfigLine Lines[];
-} tConfigFile;
-
-// === IMPORTS ===
-extern int Modules_LoadBuiltins();
-//extern int PCI_Install();
-extern void DMA_Install();
-extern void Debug_SetKTerminal(char *File);
-extern void StartupPrint(char *Str);
-
-// === PROTOTYPES ===
-void System_Init(char *ArgString);
-void System_ParseCommandLine(char *ArgString);
-void System_ParseVFS(char *Arg);
-void System_ParseSetting(char *Arg);
-void System_ExecuteScript();
-tConfigFile *System_Int_ParseFile(char *File);
-
-// === GLOBALS ===
-char *gsConfigScript = "/Acess/Conf/BootConf.cfg";
-
-// === CODE ===
-void System_Init(char *ArgString)
-{
- // Set the debug to be echoed to the terminal
- StartupPrint("Kernel now echoes to VT7 (Ctrl-Alt-F8)");
- Debug_SetKTerminal("/Devices/VTerm/7");
-
- // - Parse Kernel's Command Line
- System_ParseCommandLine(ArgString);
-
- // - Execute the Config Script
- Log_Log("CFG", "Executing config script...");
- System_ExecuteScript();
-}
-
-/**
- * \fn void System_ParseCommandLine(char *ArgString)
- * \brief Parses the kernel's command line and sets the environment
- */
-void System_ParseCommandLine(char *ArgString)
-{
- char *argv[32];
- int argc;
- int i;
- char *str;
-
- Log_Log("CFG", "Kernel Invocation \"%s\"", ArgString);
-
- // --- Get Arguments ---
- str = ArgString;
- for( argc = 0; argc < 32; argc++ )
- {
- // Eat Whitespace
- while(*str == ' ') str++;
- // Check for the end of the string
- if(*str == '\0') { argc--; break;}
- argv[argc] = str;
- while(*str && *str != ' ')
- {
- /*if(*str == '"') {
- while(*str && !(*str == '"' && str[-1] != '\\'))
- str ++;
- }*/
- str++;
- }
- if(*str == '\0') break; // Check for EOS
- *str = '\0'; // Cap off argument string
- str ++; // and increment the string pointer
- }
- if(argc < 32)
- argc ++; // Count last argument
-
- // --- Parse Arguments ---
- for( i = 1; i < argc; i++ )
- {
- if( argv[i][0] == '/' )
- System_ParseVFS( argv[i] );
- else
- System_ParseSetting( argv[i] );
- }
-}
-
-/**
- * \fn void System_ParseVFS(char *Arg)
- */
-void System_ParseVFS(char *Arg)
-{
- char *value;
- int fd;
-
- value = Arg;
- // Search for the '=' token
- while( *value && *value != '=' )
- value++;
-
- // Check if the equals was found
- if( *value == '\0' ) {
- Log_Warning("CFG", "Expected '=' in the string '%s'", Arg);
- return ;
- }
-
- // Edit string
- *value = '\0'; value ++;
-
- // Check assignment type
- // - Symbolic Link <link>=<destination>
- if(value[0] == '/')
- {
- Log_Log("CFG", "Symbolic link '%s' pointing to '%s'", Arg, value);
- VFS_Symlink(Arg, value);
- }
- // - Mount <mountpoint>=<fs>:<device>
- else
- {
- char *dev = value;
- // Find colon
- while(*dev && *dev != ':') dev++;
- if(*dev) {
- *dev = '\0';
- dev++; // Eat ':'
- }
- // Create Mountpoint
- if( (fd = VFS_Open(Arg, 0)) == -1 ) {
- Log_Log("CFG", "Creating directory '%s'", Arg, value);
- VFS_MkDir( Arg );
- } else {
- VFS_Close(fd);
- }
- // Mount
- Log_Log("CFG", "Mounting '%s' to '%s' ('%s')", dev, Arg, value);
- VFS_Mount(dev, Arg, value, "");
- }
-}
-
-/**
- * \fn void System_ParseSetting(char *Arg)
- */
-void System_ParseSetting(char *Arg)
-{
- char *value;
- value = Arg;
-
- // Search for the '=' token
- while( *value && *value != '=' )
- value++;
-
- // Check for boolean/flag (no '=')
- if(*value == '\0')
- {
- //if(strcmp(Arg, "") == 0) {
- //} else {
- Log_Warning("CFG", "Kernel flag '%s' is not recognised", Arg);
- //}
- }
- else
- {
- *value = '\0'; // Remove '='
- value ++; // and eat it's position
-
- if(strcmp(Arg, "SCRIPT") == 0) {
- Log_Log("CFG", "Config Script: '%s'", value);
- gsConfigScript = value;
- } else {
- Log_Warning("CFG", "Kernel config setting '%s' is not recognised", Arg);
- }
-
- }
-}
-
-/**
- * \fn void System_ExecuteScript()
- */
-void System_ExecuteScript()
-{
- int fp;
- int fLen = 0;
- int i;
- char *fData;
- tConfigFile *file;
- tConfigLine *line;
-
- // Open Script
- fp = VFS_Open(gsConfigScript, VFS_OPENFLAG_READ);
- if(fp == -1) {
- Log_Warning("CFG", "Passed script '%s' does not exist", gsConfigScript);
- return;
- }
-
- // Read into memory buffer
- VFS_Seek(fp, 0, SEEK_END);
- fLen = VFS_Tell(fp);
- VFS_Seek(fp, 0, SEEK_SET);
- fData = malloc(fLen+1);
- VFS_Read(fp, fLen, fData);
- fData[fLen] = '\0';
- VFS_Close(fp);
-
-
-
- // Parse File
- file = System_Int_ParseFile(fData);
-
- // Parse each line
- for( i = 0; i < file->nLines; i++ )
- {
- line = &file->Lines[i];
- if( line->nParts == 0 ) continue; // Skip blank
-
- // Mount Device
- if( strcmp(line->Parts[0], "mount") == 0 )
- {
- if( line->nParts != 4 ) {
- Log_Warning("CFG", "Configuration command 'mount' requires 3 arguments, %i given",
- line->nParts-1);
- continue;
- }
- //Log_Log("CFG", "Mount '%s' to '%s' (%s)",
- // line->Parts[1], line->Parts[2], line->Parts[3]);
- //! \todo Use an optional 4th argument for the options string
- VFS_Mount(line->Parts[1], line->Parts[2], line->Parts[3], "");
- }
- // Load a Module
- else if(strcmp(line->Parts[0], "module") == 0)
- {
- if( line->nParts < 2 || line->nParts > 3 ) {
- Log_Warning("CFG",
- "Configuration command 'module' requires 1 or 2 arguments, %i given",
- line->nParts-1);
- continue;
- }
- if( line->nParts == 3 )
- Module_LoadFile(line->Parts[1], line->Parts[2]);
- else
- Module_LoadFile(line->Parts[1], "");
- }
- // Load a UDI Module
- else if(strcmp(line->Parts[0], "udimod") == 0)
- {
- if( line->nParts != 2 ) {
- Log_Warning("CFG", "Configuration command 'udimod' requires 1 argument, %i given",
- line->nParts-1);
- continue;
- }
- Log_Log("CFG", "Load UDI Module '%s'", line->Parts[1]);
- Module_LoadFile(line->Parts[1], "");
- }
- // Load a EDI Module
- else if(strcmp(line->Parts[0], "edimod") == 0)
- {
- if( line->nParts != 2 ) {
- Log_Warning("CFG", "Configuration command 'edimod' requires 1 argument, %i given",
- line->nParts-1);
- continue;
- }
- Log_Log("CFG", "Load EDI Module '%s'", line->Parts[1]);
- Module_LoadFile(line->Parts[1], "");
- }
- // Create a Symbolic Link
- else if(strcmp(line->Parts[0], "symlink") == 0)
- {
- if( line->nParts != 3 ) {
- Log_Warning("CFG", "Configuration command 'symlink' requires 2 arguments, %i given",
- line->nParts-1);
- continue;
- }
- Log_Log("CFG", "Symlink '%s' pointing to '%s'",
- line->Parts[1], line->Parts[2]);
- VFS_Symlink(line->Parts[1], line->Parts[2]);
- }
- // Create a Directory
- else if(strcmp(line->Parts[0], "mkdir") == 0)
- {
- if( line->nParts != 2 ) {
- Log_Warning("CFG", "Configuration command 'mkdir' requires 1 argument, %i given",
- line->nParts-1);
- continue;
- }
- Log_Log("CFG", "New Directory '%s'", line->Parts[1]);
- VFS_MkDir(line->Parts[1]);
- }
- // Spawn a process
- else if(strcmp(line->Parts[0], "spawn") == 0)
- {
- if( line->nParts != 2 ) {
- Log_Warning("CFG", "Configuration command 'spawn' requires 1 argument, %i given",
- line->nParts-1);
- continue;
- }
- Log_Log("CFG", "Starting '%s' as a new task", line->Parts[1]);
- Proc_Spawn(line->Parts[1]);
- }
- else {
- Log_Warning("CFG", "Unknown configuration command '%s' on line %i",
- line->Parts[0],
- line->TrueLine
- );
- }
- }
-
- // Clean up after ourselves
- for( i = 0; i < file->nLines; i++ ) {
- if( file->Lines[i].nParts == 0 ) continue; // Skip blank
- free( file->Lines[i].Parts );
- }
- free( file );
- free( fData );
-}
-
-/**
- * \brief Parses a config file
- * \param FileData Read/Write buffer containing the config file data
- * (will be modified)
- * \return ::tConfigFile structure that represents the original contents
- * of \a FileData
- */
-tConfigFile *System_Int_ParseFile(char *FileData)
-{
- char *ptr;
- char *start;
- int nLines = 1;
- int i, j;
- tConfigFile *ret;
-
- ENTER("pFileData", FileData);
-
- // Prescan and count the number of lines
- for(ptr = FileData; *ptr; ptr++)
- {
- if(*ptr != '\n') continue;
-
- if(ptr == FileData) {
- nLines ++;
- continue;
- }
-
- // Escaped EOL
- if(ptr[-1] == '\\') continue;
-
- nLines ++;
- }
-
- LOG("nLines = %i", nLines);
-
- // Ok so we have `nLines` lines, now to allocate our return
- ret = malloc( sizeof(tConfigFile) + sizeof(tConfigLine)*nLines );
- ret->nLines = nLines;
-
- // Read the file for real
- for(
- ptr = FileData, i = 0;
- *ptr;
- i++
- )
- {
- start = ptr;
-
- ret->Lines[i].nParts = 0;
-
- // Count parts
- for(;;)
- {
- // Read leading whitespace
- while( *ptr == '\t' || *ptr == ' ' ) ptr++;
-
- // End of line/file
- if( *ptr == '\0' || *ptr == '\n' ) {
- if(*ptr == '\n') ptr ++;
- break;
- }
- // Comment
- if( *ptr == '#' || *ptr == ';' ) {
- while( *ptr && *ptr != '\n' ) ptr ++;
- if(*ptr == '\n') ptr ++;
- break;
- }
-
- ret->Lines[i].nParts ++;
- // Quoted
- if( *ptr == '"' ) {
- ptr ++;
- while( *ptr && !(*ptr == '"' && ptr[-1] == '\\') && *ptr != '\n' )
- ptr++;
- continue;
- }
- // Unquoted
- while( *ptr && !(*ptr == '\t' || *ptr == ' ') && *ptr != '\n' )
- ptr++;
- }
-
- LOG("ret->Lines[%i].nParts = %i", i, ret->Lines[i].nParts);
-
- if( ret->Lines[i].nParts == 0 ) {
- ret->Lines[i].Parts = NULL;
- continue;
- }
-
- // Allocate part list
- ret->Lines[i].Parts = malloc( sizeof(char*) * ret->Lines[i].nParts );
-
- // Fill list
- for( ptr = start, j = 0; ; j++ )
- {
- // Read leading whitespace
- while( *ptr == '\t' || *ptr == ' ' ) ptr++;
-
- // End of line/file
- if( *ptr == '\0' || *ptr == '\n' ) {
- if(*ptr == '\n') ptr ++;
- break;
- }
- // Comment
- if( *ptr == '#' || *ptr == ';' ) {
- while( *ptr && *ptr != '\n' ) ptr ++;
- if(*ptr == '\n') ptr ++;
- break;
- }
-
- ret->Lines[i].Parts[j] = ptr;
-
- // Quoted
- if( *ptr == '"' ) {
- ptr ++;
- while( *ptr && !(*ptr == '"' && ptr[-1] == '\\') && *ptr != '\n' )
- ptr++;
- }
- // Unquoted
- else {
- while( *ptr != '\t' && *ptr != ' ' && *ptr != '\n' )
- ptr++;
- }
-
- // Break if we have reached NULL
- if( *ptr == '\0' ) {
- LOG("ret->Lines[%i].Parts[%i] = '%s'", i, j, ret->Lines[i].Parts[j]);
- break;
- }
- if( *ptr == '\n' ) {
- *ptr = '\0';
- LOG("ret->Lines[%i].Parts[%i] = '%s'", i, j, ret->Lines[i].Parts[j]);
- ptr ++;
- break;
- }
- *ptr = '\0'; // Cap off string
- LOG("ret->Lines[%i].Parts[%i] = '%s'", i, j, ret->Lines[i].Parts[j]);
- ptr ++; // And increment for the next round
- }
- }
-
- LEAVE('p', ret);
- return ret;
-}
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