On Thursday, June 4, 2020 1:57:56 PM EDT Richard Guy Briggs wrote:
 > > diff --git a/kernel/auditsc.c b/kernel/auditsc.c
 > > index 468a23390457..3a9100e95fda 100644
 > > --- a/kernel/auditsc.c
 > > +++ b/kernel/auditsc.c
 > > @@ -75,6 +75,7 @@
 > > #include <linux/uaccess.h>
 > > #include <linux/fsnotify_backend.h>
 > > #include <uapi/linux/limits.h>
 > > +#include <uapi/linux/netfilter/nf_tables.h>
 > > 
 > > #include "audit.h"
 > > 
 > > @@ -136,9 +137,26 @@ struct audit_nfcfgop_tab {
 > > };
 > > 
 > > static const struct audit_nfcfgop_tab audit_nfcfgs[] = {
 > > -       { AUDIT_XT_OP_REGISTER,         "register"      },
 > > -       { AUDIT_XT_OP_REPLACE,          "replace"       },
 > > -       { AUDIT_XT_OP_UNREGISTER,       "unregister"    },
 > > +       { AUDIT_XT_OP_REGISTER,                 "xt_register"
 > 
 > },
 > 
 > > +       { AUDIT_XT_OP_REPLACE,                  "xt_replace"         
 
 > >    }, +       { AUDIT_XT_OP_UNREGISTER,               "xt_unregister"
 > >           }, +       { AUDIT_NFT_OP_TABLE_REGISTER,         
 > > "nft_register_table"> 
 > },
 > 
 > > +       { AUDIT_NFT_OP_TABLE_UNREGISTER,       
"nft_unregister_table" 
 > >    }, +       { AUDIT_NFT_OP_CHAIN_REGISTER,         
 > > "nft_register_chain"> 
 > },
 > 
 > > +       { AUDIT_NFT_OP_CHAIN_UNREGISTER,       
"nft_unregister_chain" 
 > >    }, +       { AUDIT_NFT_OP_RULE_REGISTER,          
 > > "nft_register_rule"> 
 > },
 > 
 > > +       { AUDIT_NFT_OP_RULE_UNREGISTER,        
"nft_unregister_rule"
 > 
 > },
 > 
 > > +       { AUDIT_NFT_OP_SET_REGISTER,            "nft_register_set"
 > 
 > },
 > 
 > > +       { AUDIT_NFT_OP_SET_UNREGISTER,          "nft_unregister_set"
 > 
 > },
 > 
 > > +       { AUDIT_NFT_OP_SETELEM_REGISTER,       
"nft_register_setelem" 
 > >    }, +       { AUDIT_NFT_OP_SETELEM_UNREGISTER,     
 > > "nft_unregister_setelem"   }, +       { AUDIT_NFT_OP_GEN_REGISTER,   
 > >        "nft_register_gen"         }, +       {
 > > AUDIT_NFT_OP_OBJ_REGISTER,            "nft_register_obj"         }, +
 > >      { AUDIT_NFT_OP_OBJ_UNREGISTER,          "nft_unregister_obj"    
 > >  }, +       { AUDIT_NFT_OP_OBJ_RESET,               "nft_reset_obj"  
 > >         }, +       { AUDIT_NFT_OP_FLOWTABLE_REGISTER,     
 > > "nft_register_flowtable"   }, +       {
 > > AUDIT_NFT_OP_FLOWTABLE_UNREGISTER,    "nft_unregister_flowtable" }, +
 > >      { AUDIT_NFT_OP_INVALID,                 "nft_invalid"
 > 
 > },
 > 
 > > };
 > 
 > I still don't like the event format because it doesn't give complete
 > subject information. However, I thought I'd comment on this string
 > table. Usually it's sufficient to log the number and then have the
 > string table in user space which looks it up during interpretation.
 
 That is a good idea that would help reduce kernel cycles and netlink
 bandwidth, but the format was set in 2011 so it is a bit late to change
 that now:
         fbabf31e4d48 ("netfilter: create audit records for x_tables
 replaces") 
Nothing searches/interprets that field name. So, you can redefine it by 
renaming it. Or just go with what you have. My preference is push that to 
user space. But not a showstopper "as is".
-Steve