diff options
| -rw-r--r-- | sftsr.c | 54 | ||||
| -rw-r--r-- | sftsr.h | 6 | ||||
| -rw-r--r-- | vboxdev.h | 212 |
3 files changed, 260 insertions, 12 deletions
@@ -147,6 +147,9 @@ static int vbox_err_to_dos(vboxerr err) return DOS_ERROR_INVALID_FUNCTION; case VERR_INVALID_HANDLE: return DOS_ERROR_INVALID_HANDLE; + case VERR_ACCESS_DENIED: + case VERR_PERMISSION_DENIED: + return DOS_ERROR_ACCESS_DENIED; case VERR_FILE_NOT_FOUND: return DOS_ERROR_FILE_NOT_FOUND; case VERR_PATH_NOT_FOUND: @@ -162,6 +165,8 @@ static int vbox_err_to_dos(vboxerr err) case VERR_NOT_A_DIRECTORY: case VERR_DIR_NOT_EMPTY: // Behavior seen in real DOS return DOS_ERROR_PATH_NOT_FOUND; + case VERR_IO_GEN_FAILURE: + return DOS_ERROR_NOT_READY; default: return DOS_ERROR_GEN_FAILURE; } @@ -1060,23 +1065,48 @@ static void handle_rmdir(union INTPACK __far *r) clear_dos_err(r); } +static uint16_t disk_bytes_to_clusters(uint64_t bytes); +#if BYTES_PER_CLUSTER == 32768 +// Avoid the 64-bit divide by hardcoding the following: +#pragma aux disk_bytes_to_clusters = \ + "shrd dx, cx, 15" /* Just need to shift everything by 15 bits to do the division. */ \ + "shrd cx, bx, 15" \ + "shrd bx, ax, 15" \ + "shr ax, 15" \ + "or ax, bx" /* Now we need to take the lower 16bits, so if any of the upper bits is set (ax:bx:cx), overflow. */ \ + "or ax, cx" \ + "jz end" \ + "overflow:" \ + "mov dx, 0xFFFF" \ + "end:" \ + __parm [ax bx cx dx] \ + __value [dx] \ + __modify [ax bx cx dx] +#endif + static void handle_get_disk_free(union INTPACK __far *r) { - const unsigned long total_space = 10 * 1024 * 1024UL; - const unsigned long free_space = 4 * 1024 * 1024UL; - const unsigned cluster_bytes = 4 * 4096UL; + const char __far *path = data.dossda->drive_cds->curr_path; // Use the current path + int drive = drive_letter_to_index(path[0]); + SHFLROOT root = data.drives[drive].root; + unsigned buf_size = sizeof(SHFLVOLINFO); + vboxerr err; - // TODO SHFLVOLINFO + dlog_puts("handle disk free"); - r->h.ah = 0; // media ID byte - r->h.al = 4; /* Sectors per cluster */ - r->x.cx = 4096; /* Bytes per sector */ - r->x.bx = total_space / cluster_bytes; /* Total clusters */ - r->x.dx = free_space / cluster_bytes; /* Number of available clusters */ + // Ask VirtualBox for disk space info + err = vbox_shfl_info(&data.vb, data.hgcm_client_id, root, SHFL_HANDLE_ROOT, + SHFL_INFO_GET | SHFL_INFO_VOLUME, &buf_size, &parms.volinfo); + if (err) { + set_vbox_err(r, err); + return; + } - dlog_print("disk free"); - dlog_printd(r->x.dx); - dlog_endline(); + r->h.ah = 0; // media ID byte + r->h.al = SECTORS_PER_CLUSTER; + r->x.cx = BYTES_PER_SECTOR; + r->x.bx = disk_bytes_to_clusters(parms.volinfo.ullTotalAllocationBytes); + r->x.dx = disk_bytes_to_clusters(parms.volinfo.ullAvailableAllocationBytes); clear_dos_err(r); } @@ -33,6 +33,12 @@ /** Maximum number of open files */ #define NUM_FILES 40 +/** Parameters used for returning disk geometry. + * For compatibility, better if sector_per_cluster * bytes_per_sector <= 32K. */ +#define SECTORS_PER_CLUSTER 8 +#define BYTES_PER_SECTOR 4096 +#define BYTES_PER_CLUSTER (SECTORS_PER_CLUSTER * BYTES_PER_SECTOR) + /** Directory enumeration needs an open file, this is its index in the "openfile" table. */ #define SEARCH_DIR_FILE 0 @@ -77,6 +77,218 @@ /** Invalid flags was given. */ #define VERR_INVALID_FLAGS (-13) +/** Not equal. */ +#define VERR_NOT_EQUAL (-18) +/** The specified path does not point at a symbolic link. */ +#define VERR_NOT_SYMLINK (-19) +/** Failed to allocate temporary memory. */ +#define VERR_NO_TMP_MEMORY (-20) +/** Invalid file mode mask (RTFMODE). */ +#define VERR_INVALID_FMODE (-21) +/** Incorrect call order. */ +#define VERR_WRONG_ORDER (-22) +/** There is no TLS (thread local storage) available for storing the current thread. */ +#define VERR_NO_TLS_FOR_SELF (-23) +/** Failed to set the TLS (thread local storage) entry which points to our thread structure. */ +#define VERR_FAILED_TO_SET_SELF_TLS (-24) +/** Not able to allocate contiguous memory. */ +#define VERR_NO_CONT_MEMORY (-26) +/** No memory available for page table or page directory. */ +#define VERR_NO_PAGE_MEMORY (-27) +/** Already initialized. */ +#define VINF_ALREADY_INITIALIZED 28 +/** The specified thread is dead. */ +#define VERR_THREAD_IS_DEAD (-29) +/** The specified thread is not waitable. */ +#define VERR_THREAD_NOT_WAITABLE (-30) +/** Pagetable not present. */ +#define VERR_PAGE_TABLE_NOT_PRESENT (-31) +/** Invalid context. + * Typically an API was used by the wrong thread. */ +#define VERR_INVALID_CONTEXT (-32) +/** The per process timer is busy. */ +#define VERR_TIMER_BUSY (-33) +/** Address conflict. */ +#define VERR_ADDRESS_CONFLICT (-34) +/** Unresolved (unknown) host platform error. */ +#define VERR_UNRESOLVED_ERROR (-35) +/** Invalid function. */ +#define VERR_INVALID_FUNCTION (-36) +/** Not supported. */ +#define VERR_NOT_SUPPORTED (-37) +/** Not supported. */ +#define VINF_NOT_SUPPORTED 37 +/** Access denied. */ +#define VERR_ACCESS_DENIED (-38) +/** Call interrupted. */ +#define VERR_INTERRUPTED (-39) +/** Call interrupted. */ +#define VINF_INTERRUPTED 39 +/** Timeout. */ +#define VERR_TIMEOUT (-40) +/** Timeout. */ +#define VINF_TIMEOUT 40 +/** Buffer too small to save result. */ +#define VERR_BUFFER_OVERFLOW (-41) +/** Buffer too small to save result. */ +#define VINF_BUFFER_OVERFLOW 41 +/** Data size overflow. */ +#define VERR_TOO_MUCH_DATA (-42) +/** Max threads number reached. */ +#define VERR_MAX_THRDS_REACHED (-43) +/** Max process number reached. */ +#define VERR_MAX_PROCS_REACHED (-44) +/** The recipient process has refused the signal. */ +#define VERR_SIGNAL_REFUSED (-45) +/** A signal is already pending. */ +#define VERR_SIGNAL_PENDING (-46) +/** The signal being posted is not correct. */ +#define VERR_SIGNAL_INVALID (-47) +/** The state changed. + * This is a generic error message and needs a context to make sense. */ +#define VERR_STATE_CHANGED (-48) +/** Warning, the state changed. + * This is a generic error message and needs a context to make sense. */ +#define VWRN_STATE_CHANGED 48 +/** Error while parsing UUID string */ +#define VERR_INVALID_UUID_FORMAT (-49) +/** The specified process was not found. */ +#define VERR_PROCESS_NOT_FOUND (-50) +/** The process specified to a non-block wait had not exited. */ +#define VERR_PROCESS_RUNNING (-51) +/** Retry the operation. */ +#define VERR_TRY_AGAIN (-52) +/** Retry the operation. */ +#define VINF_TRY_AGAIN 52 +/** Generic parse error. */ +#define VERR_PARSE_ERROR (-53) +/** Value out of range. */ +#define VERR_OUT_OF_RANGE (-54) +/** A numeric conversion encountered a value which was too big for the target. */ +#define VERR_NUMBER_TOO_BIG (-55) +/** A numeric conversion encountered a value which was too big for the target. */ +#define VWRN_NUMBER_TOO_BIG 55 +/** The number begin converted (string) contained no digits. */ +#define VERR_NO_DIGITS (-56) +/** The number begin converted (string) contained no digits. */ +#define VWRN_NO_DIGITS 56 +/** Encountered a '-' during conversion to an unsigned value. */ +#define VERR_NEGATIVE_UNSIGNED (-57) +/** Encountered a '-' during conversion to an unsigned value. */ +#define VWRN_NEGATIVE_UNSIGNED 57 +/** Error while characters translation (unicode and so). */ +#define VERR_NO_TRANSLATION (-58) +/** Error while characters translation (unicode and so). */ +#define VWRN_NO_TRANSLATION 58 +/** Encountered unicode code point which is reserved for use as endian indicator (0xffff or 0xfffe). */ +#define VERR_CODE_POINT_ENDIAN_INDICATOR (-59) +/** Encountered unicode code point in the surrogate range (0xd800 to 0xdfff). */ +#define VERR_CODE_POINT_SURROGATE (-60) +/** A string claiming to be UTF-8 is incorrectly encoded. */ +#define VERR_INVALID_UTF8_ENCODING (-61) +/** A string claiming to be in UTF-16 is incorrectly encoded. */ +#define VERR_INVALID_UTF16_ENCODING (-62) +/** Encountered a unicode code point which cannot be represented as UTF-16. */ +#define VERR_CANT_RECODE_AS_UTF16 (-63) +/** Got an out of memory condition trying to allocate a string. */ +#define VERR_NO_STR_MEMORY (-64) +/** Got an out of memory condition trying to allocate a UTF-16 (/UCS-2) string. */ +#define VERR_NO_UTF16_MEMORY (-65) +/** Get an out of memory condition trying to allocate a code point array. */ +#define VERR_NO_CODE_POINT_MEMORY (-66) +/** Can't free the memory because it's used in mapping. */ +#define VERR_MEMORY_BUSY (-67) +/** The timer can't be started because it's already active. */ +#define VERR_TIMER_ACTIVE (-68) +/** The timer can't be stopped because it's already suspended. */ +#define VERR_TIMER_SUSPENDED (-69) +/** The operation was cancelled by the user (copy) or another thread (local ipc). */ +#define VERR_CANCELLED (-70) +/** Failed to initialize a memory object. + * Exactly what this means is OS specific. */ +#define VERR_MEMOBJ_INIT_FAILED (-71) +/** Out of memory condition when allocating memory with low physical backing. */ +#define VERR_NO_LOW_MEMORY (-72) +/** Out of memory condition when allocating physical memory (without mapping). */ +#define VERR_NO_PHYS_MEMORY (-73) +/** The address (virtual or physical) is too big. */ +#define VERR_ADDRESS_TOO_BIG (-74) +/** Failed to map a memory object. */ +#define VERR_MAP_FAILED (-75) +/** Trailing characters. */ +#define VERR_TRAILING_CHARS (-76) +/** Trailing characters. */ +#define VWRN_TRAILING_CHARS 76 +/** Trailing spaces. */ +#define VERR_TRAILING_SPACES (-77) +/** Trailing spaces. */ +#define VWRN_TRAILING_SPACES 77 +/** Generic not found error. */ +#define VERR_NOT_FOUND (-78) +/** Generic not found warning. */ +#define VWRN_NOT_FOUND 78 +/** Generic invalid state error. */ +#define VERR_INVALID_STATE (-79) +/** Generic invalid state warning. */ +#define VWRN_INVALID_STATE 79 +/** Generic out of resources error. */ +#define VERR_OUT_OF_RESOURCES (-80) +/** Generic out of resources warning. */ +#define VWRN_OUT_OF_RESOURCES 80 +/** No more handles available, too many open handles. */ +#define VERR_NO_MORE_HANDLES (-81) +/** Preemption is disabled. + * The requested operation can only be performed when preemption is enabled. */ +#define VERR_PREEMPT_DISABLED (-82) +/** End of string. */ +#define VERR_END_OF_STRING (-83) +/** End of string. */ +#define VINF_END_OF_STRING 83 +/** A page count is out of range. */ +#define VERR_PAGE_COUNT_OUT_OF_RANGE (-84) +/** Generic object destroyed status. */ +#define VERR_OBJECT_DESTROYED (-85) +/** Generic object was destroyed by the call status. */ +#define VINF_OBJECT_DESTROYED 85 +/** Generic dangling objects status. */ +#define VERR_DANGLING_OBJECTS (-86) +/** Generic dangling objects status. */ +#define VWRN_DANGLING_OBJECTS 86 +/** Invalid Base64 encoding. */ +#define VERR_INVALID_BASE64_ENCODING (-87) +/** Return instigated by a callback or similar. */ +#define VERR_CALLBACK_RETURN (-88) +/** Return instigated by a callback or similar. */ +#define VINF_CALLBACK_RETURN 88 +/** Authentication failure. */ +#define VERR_AUTHENTICATION_FAILURE (-89) +/** Not a power of two. */ +#define VERR_NOT_POWER_OF_TWO (-90) +/** Status code, typically given as a parameter, that isn't supposed to be used. */ +#define VERR_IGNORED (-91) +/** Concurrent access to the object is not allowed. */ +#define VERR_CONCURRENT_ACCESS (-92) +/** The caller does not have a reference to the object. + * This status is used when two threads is caught sharing the same object + * reference. */ +#define VERR_CALLER_NO_REFERENCE (-93) +/** Generic no change error. */ +#define VERR_NO_CHANGE (-95) +/** Generic no change info. */ +#define VINF_NO_CHANGE 95 +/** Out of memory condition when allocating executable memory. */ +#define VERR_NO_EXEC_MEMORY (-96) +/** The alignment is not supported. */ +#define VERR_UNSUPPORTED_ALIGNMENT (-97) +/** The alignment is not really supported, however we got lucky with this + * allocation. */ +#define VINF_UNSUPPORTED_ALIGNMENT 97 +/** Duplicate something. */ +#define VERR_DUPLICATE (-98) +/** Something is missing. */ +#define VERR_MISSING (-99) +/** An unexpected (/unknown) exception was caught. */ + #define VERR_FILE_IO_ERROR (-100) /** File/Device open failed. */ #define VERR_OPEN_FAILED (-101) |