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authorMáté Eckl <ecklm94@gmail.com>2018-08-23 12:51:07 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2018-08-24 10:09:30 +0200
commitcebbd9678b7ee6f74b3bd4eefc23de5b27135799 (patch)
tree32020dae0f0326d12637e98b4af95ef029792cb5 /src/parser_bison.y
parenta55ca1a24b7b216144dc737f621fb68f4a924e38 (diff)
src: Make invalid chain priority error more specific
So far if invalid priority name was specified the error message referred to the whole chain/flowtable specification: nft> add chain ip x h { type filter hook prerouting priority first; } Error: 'first' is invalid priority in this context. add chain ip x h { type filter hook prerouting priority first; } ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ With this patch this reference is made specific to the priority specification: nft> add chain ip x h { type filter hook prerouting priority first; } Error: 'first' is invalid priority in this context. add chain ip x h { type filter hook prerouting priority first; } ^^^^^^^^^^^^^^ `prio_spec` is also reused to keep naming intuitive. The parser section formerly named `prio_spec` is renamed to `int_num` as it basically provides the mathematical set of integer numbers. Signed-off-by: Máté Eckl <ecklm94@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/parser_bison.y')
-rw-r--r--src/parser_bison.y23
1 files changed, 15 insertions, 8 deletions
diff --git a/src/parser_bison.y b/src/parser_bison.y
index cc114717..ff795047 100644
--- a/src/parser_bison.y
+++ b/src/parser_bison.y
@@ -528,8 +528,8 @@ int nft_lex(void *, void *, void *);
%destructor { handle_free(&$$); } table_spec tableid_spec chain_spec chainid_spec flowtable_spec chain_identifier ruleid_spec handle_spec position_spec rule_position ruleset_spec index_spec
%type <handle> set_spec setid_spec set_identifier flowtable_identifier obj_spec objid_spec obj_identifier
%destructor { handle_free(&$$); } set_spec setid_spec set_identifier obj_spec objid_spec obj_identifier
-%type <val> family_spec family_spec_explicit chain_policy prio_spec
-%type <prio_spec> extended_prio_spec
+%type <val> family_spec family_spec_explicit chain_policy int_num
+%type <prio_spec> extended_prio_spec prio_spec
%type <string> dev_spec quota_unit
%destructor { xfree($$); } dev_spec quota_unit
@@ -1647,7 +1647,7 @@ flowtable_block_alloc : /* empty */
flowtable_block : /* empty */ { $$ = $<flowtable>-1; }
| flowtable_block common_block
| flowtable_block stmt_separator
- | flowtable_block HOOK STRING PRIORITY extended_prio_spec stmt_separator
+ | flowtable_block HOOK STRING prio_spec stmt_separator
{
$$->hookstr = chain_hookname_lookup($3);
if ($$->hookstr == NULL) {
@@ -1658,7 +1658,7 @@ flowtable_block : /* empty */ { $$ = $<flowtable>-1; }
}
xfree($3);
- $$->priority = $5;
+ $$->priority = $4;
}
| flowtable_block DEVICES '=' flowtable_expr stmt_separator
{
@@ -1780,7 +1780,7 @@ type_identifier : STRING { $$ = $1; }
| CLASSID { $$ = xstrdup("classid"); }
;
-hook_spec : TYPE STRING HOOK STRING dev_spec PRIORITY extended_prio_spec
+hook_spec : TYPE STRING HOOK STRING dev_spec prio_spec
{
const char *chain_type = chain_type_name_lookup($2);
@@ -1803,12 +1803,19 @@ hook_spec : TYPE STRING HOOK STRING dev_spec PRIORITY extended_prio_spec
xfree($4);
$<chain>0->dev = $5;
- $<chain>0->priority = $7;
+ $<chain>0->priority = $6;
$<chain>0->flags |= CHAIN_F_BASECHAIN;
}
;
-extended_prio_spec : prio_spec
+prio_spec : PRIORITY extended_prio_spec
+ {
+ $$ = $2;
+ $$.loc = @$;
+ }
+ ;
+
+extended_prio_spec : int_num
{
struct prio_spec spec = {0};
spec.num = $1;
@@ -1836,7 +1843,7 @@ extended_prio_spec : prio_spec
}
;
-prio_spec : NUM { $$ = $1; }
+int_num : NUM { $$ = $1; }
| DASH NUM { $$ = -$2; }
;