+++ /dev/null
-/*
- * Acess 2
- * Architecture Independent System Init
- * system.c
- */
-#include <common.h>
-
-// === IMPORTS ===
-extern int Modules_LoadBuiltins();
-extern int PCI_Install();
-
-// === PROTOTYPES ===
-void System_Init(char *ArgString);
-void System_ParseCommandLine(char *ArgString);
-void System_ParseVFS(char *Arg);
-void System_ParseSetting(char *Arg);
-void System_ExecuteScript();
- int System_Int_GetString(char *Str, char **Dest);
-
-// === GLOBALS ===
-char *gsInitPath = "/Acess/Bin/init";
-char *gsConfigScript = "/Acess/Conf/BootConf.cfg";
-
-// === CODE ===
-void System_Init(char *ArgString)
-{
- // - Start Builtin Drivers & Filesystems
- PCI_Install();
- //ATA_Install();
- Modules_LoadBuiltins();
-
- // - Parse Kernel's Command Line
- System_ParseCommandLine(ArgString);
-
- // - Execute the Config Script
- Log("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("Kernel Command Line: \"%s\"", ArgString);
-
- // --- Get Arguments ---
- str = ArgString;
- for( argc = 0; argc < 32; argc++ )
- {
- while(*str == ' ') str++; // Eat Whitespace
- if(*str == '\0') { argc--; break;} // End of string
- argv[argc] = str;
- while(*str && *str != ' ')
- {
- /*if(*str == '"') {
- while(*str && !(*str == '"' && str[-1] != '\\'))
- str ++;
- }*/
- str++;
- }
- if(*str == '\0') break; // End of string
- *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' ) {
- Warning("Expected '=' in the string '%s'", Arg);
- return ;
- }
-
- // Edit string
- *value = '\0'; value ++;
-
- // Check assignment type
- // - Symbolic Link <link>=<destination>
- if(value[0] == '/')
- {
- Log("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("Creating directory '%s'", Arg, value);
- VFS_MkDir( Arg );
- } else {
- VFS_Close(fd);
- }
- // Mount
- Log("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 {
- Warning("Kernel flag '%s' is not recognised", Arg);
- }
- }
- else
- {
- *value = '\0'; // Remove '='
- value ++; // and eat it's position
-
- if(strcmp(Arg, "SCRIPT") == 0) {
- Log("Config Script: '%s'", value);
- gsConfigScript = value;
- } else {
- Warning("Kernel config setting '%s' is not recognised", Arg);
- }
-
- }
-}
-
-/**
- * \fn void System_ExecuteScript()
- */
-void System_ExecuteScript()
-{
- int fp;
- int fLen = 0;
- int i = 0, lineStart;
- char *sArg1, *sArg2, *sArg3;
- char *fData;
-
- // Open Script
- fp = VFS_Open(gsConfigScript, VFS_OPENFLAG_READ);
- if(fp == -1) {
- 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);
-
- // Read Script
- while(i < fLen)
- {
- sArg1 = sArg2 = sArg3 = NULL;
-
- lineStart = i;
- // Clear leading whitespace and find empty lines
- while(i < fLen && (fData[i] == ' ' || fData[i]=='\t')) i ++;
- if(i == fLen) break;
- if(fData[i] == '\n') {
- i++;
- continue;
- }
-
- // Comment
- if(fData[i] == ';' || fData[i] == '#') {
- while(i < fLen && fData[i] != '\n') i ++;
- i ++;
- continue;
- }
-
- // Commands
- // - Mount
- if(strncmp("mount ", fData+i, 6) == 0) {
- i += 6;
- i += System_Int_GetString(fData+i, &sArg1);
- if(!sArg1) goto read2eol;
- i += System_Int_GetString(fData+i, &sArg2);
- if(!sArg2) goto read2eol;
- i += System_Int_GetString(fData+i, &sArg3);
- if(!sArg3) goto read2eol;
- //Log("[CFG ] Mount '%s' to '%s' (%s)\n", sArg1, sArg2, sArg3);
- VFS_Mount(sArg1, sArg2, sArg3, "");
- }
- // - Load Module
- else if(strncmp("module ", fData+i, 6) == 0) {
- i += 7;
- i += System_Int_GetString(fData+i, &sArg1);
- if(!sArg1) goto read2eol;
- //Log("[CFG ] Load Module '%s'\n", sArg1);
- Module_LoadFile(sArg1, ""); //!\todo Use the rest of the line as the argument string
- }
- // - Load Module
- else if(strncmp("edimod ", fData+i, 6) == 0) {
- i += 7;
- i += System_Int_GetString(fData+i, &sArg1);
- if(!sArg1) goto read2eol;
- Log("[CFG ] Load EDI Module '%s'\n", sArg1);
- Module_LoadFile(sArg1, "");
- }
- // - Symlink
- else if(strncmp("symlink ", fData+i, 7) == 0) {
- i += 8;
- i += System_Int_GetString(fData+i, &sArg1);
- if(!sArg1) goto read2eol;
- i += System_Int_GetString(fData+i, &sArg2);
- if(!sArg2) goto read2eol;
- Log("[CFG ] Symlink '%s' pointing to '%s'\n", sArg1, sArg2);
- VFS_Symlink(sArg1, sArg2);
- }
- // - New Directory
- else if(strncmp("mkdir ", fData+i, 5) == 0) {
- i += 6;
- i += System_Int_GetString(fData+i, &sArg1);
- if(!sArg1) goto read2eol;
- Log("[CFG ] New Directory '%s'\n", sArg1);
- VFS_MkDir(sArg1);
- }
- // - Spawn a task
- else if(strncmp("spawn ", fData+i, 5) == 0) {
- i += 6;
- i += System_Int_GetString(fData+i, &sArg1);
- if(!sArg1) goto read2eol;
- Log("[CFG ] Starting '%s' as a new task\n", sArg1);
- Proc_Spawn(sArg1);
- }
- else {
- Warning("Unknown configuration command, Line: '%s'", fData+i);
- goto read2eol;
- }
- read2eol:
- if(sArg1) free(sArg1);
- if(sArg2) free(sArg2);
- if(sArg3) free(sArg3);
- // Skip to EOL
- while(i < fLen && fData[i] != '\n') i++;
- i ++; // Skip \n
- }
- free(fData);
-}
-
-/**
- * \fn int System_Int_GetString(char *Str, char **Dest)
- * \brief Gets a string from another
- * \note Destructive
- * \param Str Input String
- * \param Dest Pointer to output pointer
- * \return Characters eaten from input
- */
-int System_Int_GetString(char *Str, char **Dest)
-{
- int pos = 0;
- int start = 0;
- int len;
-
- //LogF("GetString: (Str='%s', Dest=0x%x)\n", Str, Dest);
-
- while(Str[pos] == ' ' || Str[pos] == '\t') pos++;
- if(Str[pos] == '\n' || Str[pos] == '\0') {
- *Dest = NULL;
- return pos;
- }
-
- // Quoted String
- if(Str[pos] == '"')
- {
- pos ++;
- start = pos;
- while(Str[pos] != '"') pos++;
-
- len = pos - start;
- *Dest = malloc( len + 1 );
- memcpy( *Dest, Str+start, len );
- (*Dest)[len] = '\0';
-
- //LogF("GetString: RETURN *Dest = '%s'\n", *Dest);
-
- pos++;
- return pos;
- }
-
- // Non-Quoted String - Whitespace deliminated
- start = pos;
- while(Str[pos] != ' ' && Str[pos] != '\t' && Str[pos] != '\n') pos++;
-
- len = pos - start;
- //LogF(" GetString: len = %i\n", len);
- *Dest = malloc( len + 1 );
- memcpy( *Dest, Str+start, len );
- (*Dest)[len] = '\0';
-
- //LogF("GetString: RETURN *Dest = '%s'\n", *Dest);
-
- return pos;
-}
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