vfs_permission

Langue: en

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

Sommaire

NAME

vfs_permission - check for access rights to a given path

SYNOPSIS

int vfs_permission(struct nameidata * nd, int mask);

ARGUMENTS

nd

lookup result that describes the path

mask

right to check for (MAY_READ, MAY_WRITE, MAY_EXEC)

DESCRIPTION

Used to check for read/write/execute permissions on a path. We use "fsuid" for this, letting us set arbitrary permissions for filesystem access without changing the "normal" uids which are used for other things.