Overload

An overload request is the execution of lidsadm with the -O parameter. For example :

lidsadm -O -t 1 --caps ULL_SET -CAP_SYS_ADMIN -LIDS_UMOUNT --mask =EMPTY_SET
lidsadm -O -p 123 45 385 -t 2 --caps =SET_ALL_CAPS -CAP_SYS_ADMIN +LIDS_UMOUNT 
        --mask =EMPTY_SET
lidsadm -O -t 2 --caps +LIDS_UMOUNT 
lidsadm -O -p 45 -t 2 -r
lidsadm -O -t 2 -r
lidsadm -O -r

When the admin is requesting an overload, for each process concerned with this request :

• If the process does not have any overload tags^16.2 or have some but none with the specified tag :
  1. a lids_caps_s is allocated
  2. the tag field is set to the given value, or the smallest that is greater than the existant ones if none is provided
  3. the caps/masks sets are filled with the provided values
  4. the structure is inserted in the chained list, the tag field value decreasing.
• If a tag was provided and the process has a corresponding overload tag, the following operations are done on this overload tag. If no tags were provided, the following operations are done on each overload.
  1. applying the provided update mask (caps &= update_mask) to the caps/masks
  2. applying the provided updated caps (caps |= updated_caps) to the caps/masks