| 28,11 → 28,11 |
|---|
| |
| /** @addtogroup fs |
| * @{ |
| */ |
| */ |
| |
| /** |
| * @file vfs.c |
| * @brief VFS service for HelenOS. |
| * @file vfs.c |
| * @brief VFS service for HelenOS. |
| */ |
| |
| #include <ipc/ipc.h> |
| 49,18 → 49,16 |
|---|
| |
| #define NAME "vfs" |
| |
| #define dprintf(...) printf(__VA_ARGS__) |
| |
| static void vfs_connection(ipc_callid_t iid, ipc_call_t *icall) |
| { |
| bool keep_on_going = 1; |
| |
| bool keep_on_going = true; |
| |
| /* |
| * The connection was opened via the IPC_CONNECT_ME_TO call. |
| * This call needs to be answered. |
| */ |
| ipc_answer_0(iid, EOK); |
| |
| |
| /* |
| * Here we enter the main connection fibril loop. |
| * The logic behind this loop and the protocol is that we'd like to keep |
| 72,18 → 70,38 |
|---|
| * connection later. |
| */ |
| while (keep_on_going) { |
| ipc_callid_t callid; |
| ipc_call_t call; |
| |
| callid = async_get_call(&call); |
| |
| ipc_callid_t callid = async_get_call(&call); |
| |
| fs_handle_t fs_handle; |
| int phone; |
| |
| switch (IPC_GET_METHOD(call)) { |
| case IPC_M_PHONE_HUNGUP: |
| keep_on_going = false; |
| break; |
| case IPC_M_CONNECT_ME_TO: |
| /* |
| * Connect the client file system to another one. |
| */ |
| /* FIXME: |
| * Prevent ordinary clients from connecting to file |
| * system servers directly. This should be solved by |
| * applying some security mechanisms. |
| */ |
| fs_handle = IPC_GET_ARG1(call); |
| phone = vfs_grab_phone(fs_handle); |
| (void) ipc_forward_fast(callid, phone, 0, 0, 0, |
| IPC_FF_NONE); |
| vfs_release_phone(phone); |
| break; |
| case VFS_REGISTER: |
| vfs_register(callid, &call); |
| keep_on_going = false; |
| /* |
| * Keep the connection open so that a file system can |
| * later ask us to connect it to another file system. |
| * This is necessary to support non-root mounts. |
| */ |
| break; |
| case VFS_MOUNT: |
| vfs_mount(callid, &call); |
| 120,22 → 138,19 |
|---|
| break; |
| } |
| } |
| |
| |
| /* TODO: cleanup after the client */ |
| |
| } |
| |
| int main(int argc, char **argv) |
| { |
| ipcarg_t phonead; |
| |
| printf(NAME ": HelenOS VFS server\n"); |
| |
| |
| /* |
| * Initialize the list of registered file systems. |
| */ |
| list_initialize(&fs_head); |
| |
| |
| /* |
| * Initialize VFS node hash table. |
| */ |
| 143,7 → 158,7 |
|---|
| printf(NAME ": Failed to initialize VFS node hash table\n"); |
| return ENOMEM; |
| } |
| |
| |
| /* |
| * Allocate and initialize the Path Lookup Buffer. |
| */ |
| 153,6 → 168,7 |
|---|
| printf(NAME ": Cannot allocate a mappable piece of address space\n"); |
| return ENOMEM; |
| } |
| |
| if (as_area_create(plb, PLB_SIZE, AS_AREA_READ | AS_AREA_WRITE | |
| AS_AREA_CACHEABLE) != plb) { |
| printf(NAME ": Cannot create address space area\n"); |
| 164,12 → 180,13 |
|---|
| * Set a connectio handling function/fibril. |
| */ |
| async_set_client_connection(vfs_connection); |
| |
| |
| /* |
| * Register at the naming service. |
| */ |
| ipcarg_t phonead; |
| ipc_connect_to_me(PHONE_NS, SERVICE_VFS, 0, 0, &phonead); |
| |
| |
| /* |
| * Start accepting connections. |
| */ |
| 180,4 → 197,4 |
|---|
| |
| /** |
| * @} |
| */ |
| */ |