From: Roberto Sassu <roberto.sassu@xxxxxxxxxx> The recent discussion about return values from LSM hooks, available here: https://lore.kernel.org/bpf/20221115175652.3836811-1-roberto.sassu@xxxxxxxxxxxxxxx/ motivated revisiting the documentation in include/linux/lsm_hooks.h, to ensure that it is complete and accurate. It was also a good occasion to fix discovered formatting issues. Changelog: v1 (security: Ensure LSMs return expected values): - A positive value, not only 1 can cause cap_set_admin to be set when calling __vm_enough_memory() (reported by Paul) - Improve description of the vm_enough_memory hook - Remove documentation of the sb_add_mnt_opt hook, as it was removed (reported by Paul) - Add more periods in the parameters description - Adjust mmap_addr and mmap_file semicolon - Move description of gfp parameter of xfrm_policy_alloc_security together with the others - Add missing return value description for binder_transaction, binder_transfer_binder, binder_transfer_file, quotactl and quota_on - Improve return value description for sb_eat_lsm_opts, sb_show_options, dentry_init_security, dentry_create_files_as and sctp_assoc_established Roberto Sassu (2): lsm: Clarify documentation of vm_enough_memory hook lsm: Add/fix return values in lsm_hooks.h and fix formatting include/linux/lsm_hooks.h | 227 ++++++++++++++++++++++++-------------- 1 file changed, 143 insertions(+), 84 deletions(-) -- 2.25.1
