X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Fsyscalls.c;h=8d17e74d2120967ba5d058f1b7ec0111cff17679;hb=391af300bd045791b8aaf50cf44b2d503c763213;hp=dd1f4b3ab5bdc50fdbd8e733b0e88ea90883f89f;hpb=51adc08a1e11fe9e5389e6e7c3e3a4ea4973917b;p=tpg%2Facess2.git

diff --git a/Kernel/syscalls.c b/Kernel/syscalls.c
index dd1f4b3a..8d17e74d 100644
--- a/Kernel/syscalls.c
+++ b/Kernel/syscalls.c
@@ -119,6 +119,11 @@ void SyscallHandler(tSyscallRegs *Regs)
 	// Binary Control
 	// ---
 	case SYS_EXECVE:
+		if( !Syscall_ValidString(Regs->Arg1) ) {
+			err = -EINVAL;
+			ret = -1;
+			break;
+		}
 		ret = Proc_Execve((char*)Regs->Arg1, (char**)Regs->Arg2, (char**)Regs->Arg3);
 		break;
 	case SYS_LOADBIN:
@@ -147,6 +152,14 @@ void SyscallHandler(tSyscallRegs *Regs)
 		VFS_Close( Regs->Arg1 );
 		break;
 	
+	case SYS_SEEK:
+		ret = VFS_Seek( Regs->Arg1, Regs->Arg2, Regs->Arg3);
+		break;
+		
+	case SYS_TELL:
+		ret = VFS_Tell( Regs->Arg1 );
+		break;
+	
 	case SYS_WRITE:
 		#if BITS < 64
 		ret = VFS_Write( Regs->Arg1, Regs->Arg2|((Uint64)Regs->Arg3<<32), (void*)Regs->Arg4 );
@@ -197,6 +210,36 @@ void SyscallHandler(tSyscallRegs *Regs)
 		ret = VFS_ChDir( (void*)Regs->Arg1 );
 		break;
 	
+	// IO Control
+	case SYS_IOCTL:
+		ret = VFS_IOCtl( Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3 );
+		break;
+	
+	// Mount a filesystem
+	case SYS_MOUNT:
+		// Only root can mount filesystems
+		if(Threads_GetUID() != 0) {
+			err = -EACCES;
+			ret = -1;
+			break;
+		}
+		// Sanity check the paths
+		if(!Syscall_ValidString(Regs->Arg1)
+		|| !Syscall_ValidString(Regs->Arg2)
+		|| !Syscall_ValidString(Regs->Arg3)
+		|| !Syscall_ValidString(Regs->Arg4) ) {
+			err = -EINVAL;
+			ret = -1;
+			break;
+		}
+		ret = VFS_Mount(
+			(char*)Regs->Arg1,	// Device
+			(char*)Regs->Arg2,	// Mount point
+			(char*)Regs->Arg3,	// Filesystem
+			(char*)Regs->Arg4	// Options
+			);
+		break;
+	
 	// -- Debug
 	case SYS_DEBUG:
 		Log((char*)Regs->Arg1,