Kernel/x86 - Slight cleanup to VMem code

[tpg/acess2.git] / KernelLand / Kernel / syscalls.c

diff --git a/KernelLand/Kernel/syscalls.c b/KernelLand/Kernel/syscalls.c
index 635f69a..d2f9185 100644 (file)
--- a/KernelLand/Kernel/syscalls.c
+++ b/KernelLand/Kernel/syscalls.c
@@ -44,7 +44,7 @@ extern Uint   Binary_Load(const char *file, Uint *entryPoint);
 void   SyscallHandler(tSyscallRegs *Regs);
  int   Syscall_ValidString(const char *Addr);
  int   Syscall_Valid(int Size, const void *Addr);
- int   Syscall_MM_SetFlags(const void *Addr, Uint Flags, Uint Mask);
+ int   Syscall_MM_SetFlags(void *Addr, Uint Flags, Uint Mask);
 
 // === CODE ===
 // TODO: Do sanity checking on arguments, ATM the user can really fuck with the kernel
@@ -72,6 +72,10 @@ void SyscallHandler(tSyscallRegs *Regs)
        
        // -- Put the current thread to sleep
        case SYS_SLEEP: Threads_Sleep();        break;
+
+       case SYS_TIMEDSLEEP:
+               Time_Delay(Regs->Arg1);
+               break;
        
        // -- Yield current timeslice
        case SYS_YIELD: Threads_Yield();        break;
@@ -113,13 +117,13 @@ void SyscallHandler(tSyscallRegs *Regs)
                break;
        
        // -- Map an address
-       case SYS_MAP:   MM_Map(Regs->Arg1, Regs->Arg2); break;
+       case SYS_MAP:   MM_Map((void*)Regs->Arg1, Regs->Arg2);  break;
        
        // -- Allocate an address
-       case SYS_ALLOCATE:      ret = MM_Allocate(Regs->Arg1);  break;
+       case SYS_ALLOCATE:      ret = MM_Allocate((void*)Regs->Arg1);   break;
        
        // -- Unmap an address
-       case SYS_UNMAP:         MM_Deallocate(Regs->Arg1);      break;
+       case SYS_UNMAP:         MM_Deallocate((void*)Regs->Arg1);       break;
        
        // -- Change the protection on an address
        case SYS_SETFLAGS:
@@ -199,7 +203,20 @@ void SyscallHandler(tSyscallRegs *Regs)
                // Path, *Entrypoint
                ret = Binary_Load((char*)Regs->Arg1, (Uint*)Regs->Arg2);
                break;
-       
+
+       // -- Load a kernel module
+       case SYS_LOADMOD:
+               CHECK_STR_NONULL( (const char *)Regs->Arg1 );
+               if( Threads_GetUID() != 0 ) {
+                       MERR("Not root");
+                       ret = EACCES;
+               }
+               else {
+                       LOG("Module_LoadFile(\"%s\", NULL)", (const char *)Regs->Arg1);
+                       ret = Module_LoadFile( (const char *)Regs->Arg1, NULL );
+               }
+               break;
+
        // ---
        // Virtual Filesystem
        // ---
@@ -208,12 +225,27 @@ void SyscallHandler(tSyscallRegs *Regs)
                LOG("VFS_Open(\"%s\", 0x%x)", (char*)Regs->Arg1, Regs->Arg2 | VFS_OPENFLAG_USER);
                ret = VFS_Open((char*)Regs->Arg1, Regs->Arg2 | VFS_OPENFLAG_USER);
                break;
+       case SYS_REOPEN:
+               CHECK_STR_NONULL( (char*)Regs->Arg2 );
+               LOG("VFS_Reopen(%i, \"%s\", 0x%x)", Regs->Arg1, (char*)Regs->Arg2, Regs->Arg3 | VFS_OPENFLAG_USER);
+               ret = VFS_Reopen(Regs->Arg1, (char*)Regs->Arg2, Regs->Arg3 | VFS_OPENFLAG_USER);
+               break;
        
        case SYS_CLOSE:
                LOG("VFS_Close(%i)", Regs->Arg1);
                VFS_Close( Regs->Arg1 );
                break;
        
+       case SYS_COPYFD:
+               LOG("VFS_DuplicateFD(%i,%i)", Regs->Arg1, Regs->Arg2);
+               ret = VFS_DuplicateFD(Regs->Arg1, Regs->Arg2);
+               break;
+
+       case SYS_FDCTL:
+               LOG("VFS_SetFDFlags(%i,0%o,0%o)", Regs->Arg1, Regs->Arg2, Regs->Arg3);
+               ret = VFS_SetFDFlags(Regs->Arg1, Regs->Arg2, Regs->Arg3);
+               break;
+
        case SYS_SEEK:
                #if BITS == 64
                ret = VFS_Seek( Regs->Arg1, Regs->Arg2, Regs->Arg3 );
@@ -300,14 +332,10 @@ void SyscallHandler(tSyscallRegs *Regs)
                else
                {
                        // Sanity check the paths
-                       if(!Syscall_ValidString((char*)Regs->Arg1)
-                       || !Syscall_ValidString((char*)Regs->Arg2)
-                       || (Regs->Arg3 && !Syscall_ValidString((char*)Regs->Arg3))
-                       || !Syscall_ValidString((char*)Regs->Arg4) ) {
-                               err = -EINVAL;
-                               ret = -1;
-                               break;
-                       }
+                       CHECK_STR_NONULL((char*)Regs->Arg1);
+                       CHECK_STR_NONULL((char*)Regs->Arg2);
+                       CHECK_STR_NULLOK((char*)Regs->Arg3);
+                       CHECK_STR_NONULL((char*)Regs->Arg4);
                        ret = VFS_Mount(
                                (char*)Regs->Arg1,      // Device
                                (char*)Regs->Arg2,      // Mount point
@@ -340,7 +368,17 @@ void SyscallHandler(tSyscallRegs *Regs)
                        0       // User handles
                        );
                break;
+
+       
+       // Create a directory
+       case SYS_MKDIR:
+               CHECK_STR_NONULL( (char*)Regs->Arg1 );
+               ret = VFS_MkDir( (char*)Regs->Arg1 );
+               break;
        
+       case SYS_UNLINK:
+               Log_Error("Syscalls", "TODO: Impliment SYS_UNLINK");
+               // Fall
        // -- Debug
        //#if DEBUG_BUILD
        case SYS_DEBUG:
@@ -416,7 +454,7 @@ int Syscall_Valid(int Size, const void *Addr)
        return CheckMem( Addr, Size );
 }
 
-int Syscall_MM_SetFlags(const void *Addr, Uint Flags, Uint Mask)
+int Syscall_MM_SetFlags(void *Addr, Uint Flags, Uint Mask)
 {
        tPAddr  paddr = MM_GetPhysAddr(Addr);
        Flags &= MM_PFLAG_RO|MM_PFLAG_EXEC;
@@ -433,6 +471,6 @@ int Syscall_MM_SetFlags(const void *Addr, Uint Flags, Uint Mask)
                        Mask |= MM_PFLAG_COW;
                }
        }
-       MM_SetFlags((tVAddr)Addr, Flags, Mask);
+       MM_SetFlags(Addr, Flags, Mask);
        return 0;
 }