/*
*/
#define DONT_INCLUDE_SYSCALL_NAMES 1
-#include "../../Usermode/include/acess/sys.h"
#include "common.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <stddef.h>
+#include <unistd.h>
#include "request.h"
-#include "../syscalls.h"
-#define DEBUG(x...) printf(x)
+#if SYSCALL_TRACE
+#define DEBUG(str, x...) Debug(str, x)
+#else
+#define DEBUG(...) do{}while(0)
+#endif
-#define NATIVE_FILE_MASK 0x40000000
#define MAX_FPS 16
// === Types ===
// === IMPORTS ===
-extern int giSyscall_ClientID; // Needed for execve
// === GLOBALS ===
FILE *gaSyscall_LocalFPs[MAX_FPS];
int direction = 0; // 0: Invalid, 1: Out, 2: In, 3: Out
char *str;
int len;
-
+
// Eat whitespace
while(*ArgTypes && *ArgTypes == ' ') ArgTypes ++;
if( *ArgTypes == '\0' ) return ArgTypes;
+// DEBUG("ArgTypes = '%s'", ArgTypes);
+
// Get direction
switch(*ArgTypes)
{
case 'i':
if( direction != 1 ) {
- fprintf(stderr, "ReadEntry: Recieving an integer is not defined\n");
+ Warning("ReadEntry: Recieving an integer is not defined");
return NULL;
}
break;
// Data (special handling)
case 'd':
- len = va_arg(*Args, int);
+ len = va_arg(*Args, size_t);
str = va_arg(*Args, char*);
// Save the pointer for later
// Create parameter block
Dest->Type = ARG_TYPE_DATA;
- Dest->Length = len;
+ Dest->Length = str ? len : 0;
Dest->Flags = 0;
if( direction & 2 )
Dest->Flags |= ARG_FLAG_RETURN;
// Has data?
if( direction & 1 )
{
- if( DataDest )
+ if( DataDest && str )
memcpy(DataDest, str, len);
}
else
req->ClientID = 0; //< Filled later
req->CallID = SyscallID;
req->NParams = paramCount;
+ req->MessageLength = dataLength;
dataPtr = &req->Params[paramCount];
// Fill `output` and `input`
}
// Write changes to buffers
+ if( req->NParams - 1 != retCount ) {
+ fprintf(stderr, "syscalls.c: Return count inbalance (%i - 1 != exp %i) [Call %i]\n",
+ req->NParams, retCount, SyscallID);
+ exit(127);
+ }
retCount = 0;
for( i = 1; i < req->NParams; i ++ )
{
free( req );
free( retPtrs );
- DEBUG(": %llx\n", retValue);
+ DEBUG(": %i 0x%llx", SyscallID, retValue);
return retValue;
}
-// --- VFS Calls
-int acess_open(const char *Path, int Flags)
-{
- if( strncmp(Path, "$$$$", 4) == 0 )
- {
- int ret;
- for(ret = 0; ret < MAX_FPS && gaSyscall_LocalFPs[ret]; ret ++ ) ;
- if(ret == MAX_FPS) return -1;
- // TODO: Handle directories
- gaSyscall_LocalFPs[ret] = fopen(&Path[4], "r+");
- if(!gaSyscall_LocalFPs[ret]) return -1;
- return ret|NATIVE_FILE_MASK;
- }
- DEBUG("open(\"%s\", 0x%x)", Path, Flags);
- return _Syscall(SYS_OPEN, ">s >i", Path, Flags);
-}
-
-void acess_close(int FD) {
- if(FD & NATIVE_FILE_MASK) {
- fclose( gaSyscall_LocalFPs[FD & (NATIVE_FILE_MASK-1)] );
- gaSyscall_LocalFPs[FD & (NATIVE_FILE_MASK-1)] = NULL;
- return ;
- }
- DEBUG("close(%i)", FD);
- _Syscall(SYS_CLOSE, ">i", FD);
-}
-
-int acess_reopen(int FD, const char *Path, int Flags) {
- DEBUG("reopen(0x%x, \"%s\", 0x%x)", FD, Path, Flags);
- return _Syscall(SYS_REOPEN, ">i >s >i", FD, Path, Flags);
-}
-
-size_t acess_read(int FD, size_t Bytes, void *Dest) {
- if(FD & NATIVE_FILE_MASK)
- return fread( Dest, Bytes, 1, gaSyscall_LocalFPs[FD & (NATIVE_FILE_MASK-1)] );
- DEBUG("read(0x%x, 0x%x, *%p)", FD, Bytes, Dest);
- return _Syscall(SYS_READ, ">i >i <d", FD, Bytes, Bytes, Dest);
-}
-
-size_t acess_write(int FD, size_t Bytes, void *Src) {
- if(FD & NATIVE_FILE_MASK)
- return fwrite( Src, Bytes, 1, gaSyscall_LocalFPs[FD & (NATIVE_FILE_MASK-1)] );
- DEBUG("write(0x%x, 0x%x, %p\"%.*s\")", FD, Bytes, Src, Bytes, (char*)Src);
- return _Syscall(SYS_WRITE, ">i >i >d", FD, Bytes, Bytes, Src);
-}
-
-int acess_seek(int FD, int64_t Ofs, int Dir) {
- if(FD & NATIVE_FILE_MASK) {
- switch(Dir) {
- case ACESS_SEEK_SET: Dir = SEEK_SET; break;
- default:
- case ACESS_SEEK_CUR: Dir = SEEK_CUR; break;
- case ACESS_SEEK_END: Dir = SEEK_END; break;
- }
- return fseek( gaSyscall_LocalFPs[FD & (NATIVE_FILE_MASK-1)], Ofs, Dir );
- }
- DEBUG("seek(0x%x, 0x%llx, %i)", FD, Ofs, Dir);
- return _Syscall(SYS_SEEK, ">i >I >i", FD, Ofs, Dir);
-}
-
-uint64_t acess_tell(int FD) {
- if(FD & NATIVE_FILE_MASK)
- return ftell( gaSyscall_LocalFPs[FD & (NATIVE_FILE_MASK-1)] );
- return _Syscall(SYS_TELL, ">i", FD);
-}
-
-int acess_ioctl(int fd, int id, void *data) {
- // NOTE: 1024 byte size is a hack
- return _Syscall(SYS_IOCTL, ">i >i ?d", fd, id, 1024, data);
-}
-int acess_finfo(int fd, t_sysFInfo *info, int maxacls) {
- return _Syscall(SYS_FINFO, ">i <d >i",
- fd,
- sizeof(t_sysFInfo)+maxacls*sizeof(t_sysACL), info,
- maxacls);
-}
-
-int acess_readdir(int fd, char *dest) {
- return _Syscall(SYS_READDIR, ">i <d", fd, 256, dest);
-}
-
-int acess__SysOpenChild(int fd, char *name, int flags) {
- return _Syscall(SYS_OPENCHILD, ">i >s >i", fd, name, flags);
-}
-
-int acess__SysGetACL(int fd, t_sysACL *dest) {
- return _Syscall(SYS_GETACL, "<i >i <d", fd, sizeof(t_sysACL), dest);
-}
-
-int acess__SysMount(const char *Device, const char *Directory, const char *Type, const char *Options) {
- return _Syscall(SYS_MOUNT, ">s >s >s >s", Device, Directory, Type, Options);
-}
-
-// --- Error Handler
-int acess__SysSetFaultHandler(int (*Handler)(int)) {
- printf("TODO: Set fault handler (asked to set to %p)\n", Handler);
- return 0;
-}
-
-// --- Memory Management ---
-uint64_t acess__SysAllocate(uint vaddr)
+int native_open(const char *Path, int Flags)
{
- if( AllocateMemory(vaddr, 0x1000) == -1 ) // Allocate a page
- return 0;
-
- return vaddr; // Just ignore the need for paddrs :)
+ int ret;
+ for(ret = 0; ret < MAX_FPS && gaSyscall_LocalFPs[ret]; ret ++ ) ;
+ if(ret == MAX_FPS) return -1;
+ // TODO: Handle directories
+ gaSyscall_LocalFPs[ret] = fopen(&Path[4], "r+");
+ if(!gaSyscall_LocalFPs[ret]) return -1;
+ return ret;
}
-// --- Process Management ---
-int acess_clone(int flags, void *stack)
+void native_close(int FD)
{
- extern int fork(void);
- if(flags & CLONE_VM) {
- int ret, newID, kernel_tid=0;
- printf("fork()");
-
- newID = _Syscall(SYS_FORK, "<d", sizeof(int), &kernel_tid);
- ret = fork();
- if(ret < 0) return ret;
-
- if(ret == 0)
- {
- giSyscall_ClientID = newID;
- return 0;
- }
-
- // TODO: Return the acess TID instead
- return kernel_tid;
- }
- else
- {
- fprintf(stderr, "ERROR: Threads currently unsupported\n");
- exit(-1);
- }
+ fclose( gaSyscall_LocalFPs[FD] );
+ gaSyscall_LocalFPs[FD] = NULL;
}
-int acess_execve(char *path, char **argv, char **envp)
+size_t native_read(int FD, void *Dest, size_t Bytes)
{
- int i, argc;
-
- printf("acess_execve: (path='%s', argv=%p, envp=%p)\n", path, argv, envp);
-
- // Get argument count
- for( argc = 0; argv[argc]; argc ++ ) ;
- printf(" acess_execve: argc = %i\n", argc);
-
- char *new_argv[5+argc+1];
- char key[11];
- sprintf(key, "%i", giSyscall_ClientID);
- new_argv[0] = "ld-acess"; // TODO: Get path to ld-acess executable
- new_argv[1] = "--key"; // Set socket/client ID for Request.c
- new_argv[2] = key;
- new_argv[3] = "--binary"; // Set the binary path (instead of using argv[0])
- new_argv[4] = path;
- for( i = 0; i < argc; i ++ ) new_argv[5+i] = argv[i];
- new_argv[5+i] = NULL;
-
- #if 1
- argc += 5;
- for( i = 0; i < argc; i ++ )
- printf("\"%s\" ", new_argv[i]);
- printf("\n");
- #endif
-
- // Call actual execve
- return execve("./ld-acess", new_argv, envp);
+ return fread( Dest, Bytes, 1, gaSyscall_LocalFPs[FD] );
}
-void acess_sleep(void)
+size_t native_write(int FD, const void *Src, size_t Bytes)
{
- _Syscall(SYS_SLEEP, "");
+ return fwrite( Src, Bytes, 1, gaSyscall_LocalFPs[FD] );
}
-int acess_waittid(int TID, int *ExitStatus)
+int native_seek(int FD, int64_t Ofs, int Dir)
{
- return _Syscall(SYS_WAITTID, ">i <d", TID, sizeof(int), &ExitStatus);
-}
-
-int acess_setuid(int ID)
-{
- return _Syscall(SYS_SETUID, ">i", ID);
-}
-
-int acess_setgid(int ID)
-{
- return _Syscall(SYS_SETGID, ">i", ID);
+ if(Dir == 0)
+ return fseek( gaSyscall_LocalFPs[FD], Ofs, SEEK_CUR );
+ else if(Dir > 0)
+ return fseek( gaSyscall_LocalFPs[FD], Ofs, SEEK_SET );
+ else
+ return fseek( gaSyscall_LocalFPs[FD], Ofs, SEEK_END );
}
-// --- Logging
-void acess__SysDebug(const char *Format, ...)
+uint64_t native_tell(int FD)
{
- va_list args;
-
- va_start(args, Format);
-
- printf("[_SysDebug] ");
- vprintf(Format, args);
- printf("\n");
-
- va_end(args);
+ return ftell( gaSyscall_LocalFPs[FD] );
}
-void acess__exit(int Status)
+int native_execve(const char *filename, const char *const argv[], const char *const envp[])
{
- _Syscall(SYS_EXIT, ">i", Status);
- exit(Status);
+ int ret;
+ ret = execve(filename, (void*)argv, (void*)envp);
+ perror("native_execve");
+ return ret;
}
-
-
-// === Symbol List ===
-#define DEFSYM(name) {#name, acess_##name}
-const tSym caBuiltinSymbols[] = {
- DEFSYM(_exit),
-
- DEFSYM(open),
- DEFSYM(close),
- DEFSYM(reopen),
- DEFSYM(read),
- DEFSYM(write),
- DEFSYM(seek),
- DEFSYM(tell),
- DEFSYM(ioctl),
- DEFSYM(finfo),
- DEFSYM(readdir),
- DEFSYM(_SysOpenChild),
- DEFSYM(_SysGetACL),
- DEFSYM(_SysMount),
-
- DEFSYM(clone),
- DEFSYM(execve),
- DEFSYM(sleep),
-
- DEFSYM(waittid),
- DEFSYM(setuid),
- DEFSYM(setgid),
-
- DEFSYM(_SysAllocate),
- DEFSYM(_SysDebug),
- DEFSYM(_SysSetFaultHandler)
-};
-
-const int ciNumBuiltinSymbols = sizeof(caBuiltinSymbols)/sizeof(caBuiltinSymbols[0]);
-
git.ucc.asn.au / tpg / acess2.git / blobdiff
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