NAME

       cr_seeothergids — determine visibility of objects given their group memberships

SYNOPSIS

       int
       cr_seeothergids(struct ucred *u1, struct ucred *u2);

DESCRIPTION

       This  function  determines  the  visibility  of  objects  in  the  kernel  based  on the group IDs in the
       credentials u1 and u2 associated with them.

       The visibility of objects is influenced by the sysctl(8) variable security.bsd.see_other_gids.   If  this
       variable is non-zero then all objects in the kernel are visible to each other irrespective of their group
       membership.   If  this variable is zero then the object with credentials u2 is visible to the object with
       credentials u1 if either u1 is the super-user credential, or if at least one of u1's group IDs is present
       in u2's group set.

SYSCTL VARIABLES

       security.bsd.see_other_gids
               Must be non-zero if objects with unprivileged credentials are to be able to see each other.

RETURN VALUES

       This function returns zero if the object with credential u1 can “see” the object with credential  u2,  or
       ESRCH otherwise.

SEE ALSO

       cr_seeotheruids(9), p_candebug(9)

Debian                                          November 11, 2003                             CR_SEEOTHERGIDS(9)