KFunc bpf_get_dentry_xattr
This function gets extended attribute(
Definition
Get name__str
of dentry
and store the output in value_ptr
.
For security reasons, only name__str
with prefix "user." is allowed.
Parameters
dentry
: dentry to get xattr from
name__str
: name of the xattr
value_p
: output buffer of the xattr value
Returns
0 on success, a negative value on error.
Signature
int bpf_get_dentry_xattr(struct dentry *dentry, const char *name__str, struct bpf_dynptr *value_p)
Note
This function may sleep, and therefore can only be used from sleepable programs.
Usage
Docs could be improved
This part of the docs is incomplete, contributions are very welcome
Program types
The following program types can make use of this kfunc:
Example
Docs could be improved
This part of the docs is incomplete, contributions are very welcome