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Webufse 2 Protocol
Endianness
All numeric data types are transferred in Big Endian.
For instance, the uint32 value 1 will be transferred as
00 00 00 01
Data Types
Basic data types
| Data Type |
Width |
Description |
| bool |
8 bit |
boolean value |
| u8 |
8 bit |
8 bit unsigned integer |
| u32 |
32 bit |
32 bit unsigned integer |
| u64 |
64 bit |
64 bit unsigned integer |
| i32 |
32 bit |
32 bit signed integer |
Derrived integral types
| Data Type |
Base Type |
Description |
| uid |
u32 |
user ID |
| gid |
u32 |
group ID |
| dev |
u64 |
device ID |
| handle |
u64 |
file handle |
Flags and Enums
| Data Type |
Base Type |
Description |
| result |
i32 |
result type of methods |
| access_mode |
u32 |
mode of access method |
| mode |
u32 |
file type and permissions |
| open_flags |
i32 |
flags of open method |
| rename_flags |
u8 |
flags of rename method |
result
| Value Range |
Description |
| 0 |
method call succeed |
| negative value |
error code (see below) |
| positive value |
amount of bytes read or written (read and write only) |
| Error Code |
Value |
Description |
| E2BIG |
-7 |
argument list too long |
| EACCES |
-13 |
permission denied |
| EAGAIN |
-11 |
resource temporarily unavailable |
| EBADF |
-9 |
bad file descriptor |
| EBUSY |
-16 |
device or resource busy |
| EDESTADDRREQ |
-89 |
destination address required |
| EDQUOT |
-122 |
disk quota exceeded |
| EEXIST |
-17 |
file exists |
| EFAULT |
-14 |
bad address |
| EFBIG |
-27 |
file too large |
| EINTR |
-4 |
interrupt function call |
| EINVAL |
-22 |
invalid argument |
| EIO |
-5 |
input / output error |
| EISDIR |
-21 |
is a directory |
| ELOOP |
-40 |
too many levels of symbolic links |
| EMFILE |
-24 |
too many open files |
| EMLINK |
-31 |
too many links |
| ENAMETOOLONG |
-36 |
filename too long |
| ENFILE |
-23 |
too many open files in system |
| ENODATA |
-61 |
the named attribute does not exist, or the process has not access to this attribute |
| ENODEV |
-19 |
no such device |
| ENOENT |
-2 |
no such file or directory |
| ENOMEM |
-12 |
not enough space / cannot allocate memory |
| ENOSPC |
-28 |
no space left on device |
| ENOSYS |
-38 |
function not implemented |
| ENOTDIR |
-20 |
not a directory |
| ENOTEMPTY |
-39 |
directory not empty |
| ENOTSUP |
-95 |
operation not supported |
| ENXIO |
-6 |
no such device or address |
| EOVERFLOW |
-75 |
value too large to be stored in data type |
| EPERM |
-1 |
operation not permitted |
| EPIPE |
-32 |
broken pipe |
| ERANGE |
-34 |
result too large |
| EROFS |
-30 |
read-only filesystem |
| ETXTBSY |
-26 |
text file busy |
| EXDEV |
-18 |
improper link |
| EWOULDBLOCK |
-11 |
resource temporarily unavailable |
Complex Types
| Data Type |
Description |
| string |
UTF-8 string |
| bytes |
array of bytes |
| timestamp |
date and time |
| attributes |
file attributes |
| statistics |
filesystem statistics |
string
| Field |
Data Type |
Description |
| size |
u32 |
length of the string in bytes |
| data |
u8[] |
string data (UTF-8) |
bytes
| Field |
Data Type |
Description |
| size |
u32 |
length of the byte array |
| data |
u8[] |
array data |
timestamp
| Field |
Data Type |
Description |
| seconds |
u64 |
seconds sind epoch (1.1.1970) |
| nsec |
u32 |
nano seconds |
attributes
| Field |
Data Type |
Description |
| inode |
u64 |
Inode value |
| nlink |
u64 |
Number of hard links |
| mode |
mode (u32) |
file mode flags |
| uid |
uid (u32) |
user ID |
| gid |
gid (u32) |
group ID |
| rdev |
dev (u64) |
device ID |
| size |
u64 |
file size |
| blocks |
u64 |
number 512-byte blocks |
| atime |
timestamp |
time of last access |
| mtime |
timestamp |
time of last modification |
| ctime |
timestamp |
time of last status change |
statistics
Message
Methods
access
| Field |
Data Type |
Description |
|
uint32 |
message id |
| type |
uint8 |
message type (0x00) |
| path |
string |
|
| mode |
access_mode (i8) |
|
Response
| Field |
