13 extern tVFS_Driver gRootFS_Info;
14 extern tVFS_Driver gDevFS_Info;
19 char *VFS_GetTruePath(const char *Path);
20 void VFS_GetMemPath(char *Dest, void *Base, Uint Length);
21 tVFS_Driver *VFS_GetFSByName(const char *Name);
22 int VFS_AddDriver(tVFS_Driver *Info);
24 void VFS_UpdateDriverFile(void);
27 EXPORT(VFS_AddDriver);
30 tVFS_Node NULLNode = {.Type=NULL};
31 tShortSpinlock slDriverListLock;
32 tVFS_Driver *gVFS_Drivers = NULL;
33 char *gsVFS_DriverFile = NULL;
34 int giVFS_DriverFileID = 0;
36 char *gsVFS_MountFile = NULL;
37 int giVFS_MountFileID = 0;
41 * \fn int VFS_Init(void)
42 * \brief Initialises the VFS for use by the kernel and user
47 gVFS_Drivers = &gRootFS_Info;
48 gVFS_Drivers->Next = &gDevFS_Info;
49 VFS_UpdateDriverFile();
51 // Register with SysFS
52 giVFS_MountFileID = SysFS_RegisterFile("VFS/Mounts", NULL, 0);
53 giVFS_DriverFileID = SysFS_RegisterFile("VFS/Drivers", NULL, 0);
55 if( VFS_Mount("root", "/", "rootfs", "") != 0 ) {
56 Log_KernelPanic("VFS", "Unable to mount root (Where the **** is rootfs?)");
59 VFS_MkDir("/Devices");
61 VFS_Mount("dev", "/Devices", "devfs", "");
63 Log_Debug("VFS", "Setting max files");
64 *Threads_GetMaxFD() = 32;
70 SysFS_RemoveFile(giVFS_MountFileID);
71 free(gsVFS_MountFile);
72 SysFS_RemoveFile(giVFS_DriverFileID);
73 free(gsVFS_DriverFile);
77 * \fn char *VFS_GetTruePath(const char *Path)
78 * \brief Gets the true path (non-symlink) of a file
80 char *VFS_GetTruePath(const char *Path)
85 tmp = VFS_GetAbsPath(Path);
86 if(tmp == NULL) return NULL;
87 //Log(" VFS_GetTruePath: tmp = '%s'", tmp);
88 node = VFS_ParsePath(tmp, &ret, NULL);
90 //Log(" VFS_GetTruePath: node=%p, ret='%s'", node, ret);
92 if(!node) return NULL;
93 if(node->Type->Close) node->Type->Close(node);
99 * \fn void VFS_GetMemPath(char *Dest, void *Base, Uint Length)
100 * \brief Create a VFS memory pointer path
102 void VFS_GetMemPath(char *Dest, void *Base, Uint Length)
105 itoa( &Dest[1], (tVAddr)Base, 16, BITS/4, '0' );
106 Dest[BITS/4+1] = ':';
107 itoa( &Dest[BITS/4+2], Length, 16, BITS/4, '0' );
108 Dest[BITS/2+2] = '\0';
112 * \fn tVFS_Driver *VFS_GetFSByName(const char *Name)
113 * \brief Gets a filesystem structure given a name
115 tVFS_Driver *VFS_GetFSByName(const char *Name)
117 tVFS_Driver *drv = gVFS_Drivers;
119 for(;drv;drv=drv->Next)
121 // Log("strcmp('%s' (%p), '%s') == 0?", drv->Name, drv->Name, Name);
122 if(strcmp(drv->Name, Name) == 0)
129 * \fn int VFS_AddDriver(tVFS_Driver *Info)
131 int VFS_AddDriver(tVFS_Driver *Info)
135 SHORTLOCK( &slDriverListLock );
136 Info->Next = gVFS_Drivers;
138 SHORTREL( &slDriverListLock );
140 VFS_UpdateDriverFile();
146 * \fn void VFS_UpdateDriverFile(void)
147 * \brief Updates the driver list file
149 void VFS_UpdateDriverFile(void)
157 for( drv = gVFS_Drivers; drv; drv = drv->Next )
159 len += 1 + strlen(drv->Name);
163 for( drv = gVFS_Drivers; drv; drv = drv->Next )
165 strcpy( &buf[len], drv->Name );
166 len += strlen(drv->Name);
171 SysFS_UpdateFile( giVFS_DriverFileID, buf, len );
172 if(gsVFS_DriverFile) free(gsVFS_DriverFile);
173 gsVFS_DriverFile = buf;
176 void VFS_CleanupNode(tVFS_Node *Node)