diff options
Diffstat (limited to 'filter')
| -rw-r--r-- | filter/config.Y | 19 | ||||
| -rw-r--r-- | filter/f-inst.c | 32 |
2 files changed, 18 insertions, 33 deletions
diff --git a/filter/config.Y b/filter/config.Y index 15b77761..46ba7769 100644 --- a/filter/config.Y +++ b/filter/config.Y @@ -185,6 +185,21 @@ f_generate_empty(struct f_dynamic_attr dyn) return f_new_inst(FI_EA_SET, f_new_inst(FI_CONSTANT, empty), dyn); } +#define BA_AS_PATH 0x02 + +static inline struct f_inst * +f_implicit_roa_check(struct rtable_config *tab) +{ + struct f_dynamic_attr fda = f_new_dynamic_attr(EAF_TYPE_AS_PATH, T_PATH, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); + + struct f_static_attr fsa = f_new_static_attr(T_NET, SA_NET, 1); + + return f_new_inst(FI_ROA_CHECK, + f_new_inst(FI_RTA_GET, fsa), + f_new_inst(FI_AS_PATH_LAST, f_new_inst(FI_EA_GET, fda)), + tab); +} + /* * Remove all new lines and doubled whitespaces * and convert all tabulators to spaces @@ -822,8 +837,8 @@ term: | DELETE '(' term ',' term ')' { $$ = f_new_inst(FI_CLIST_DEL, $3, $5); } | FILTER '(' term ',' term ')' { $$ = f_new_inst(FI_CLIST_FILTER, $3, $5); } - | ROA_CHECK '(' rtable ')' { $$ = f_new_inst(FI_ROA_CHECK_IMPLICIT, $3); } - | ROA_CHECK '(' rtable ',' term ',' term ')' { $$ = f_new_inst(FI_ROA_CHECK_EXPLICIT, $5, $7, $3); } + | ROA_CHECK '(' rtable ')' { $$ = f_implicit_roa_check($3); } + | ROA_CHECK '(' rtable ',' term ',' term ')' { $$ = f_new_inst(FI_ROA_CHECK, $5, $7, $3); } | FORMAT '(' term ')' { $$ = f_new_inst(FI_FORMAT, $3); } diff --git a/filter/f-inst.c b/filter/f-inst.c index 2c4c97b1..8e20dc74 100644 --- a/filter/f-inst.c +++ b/filter/f-inst.c @@ -1295,37 +1295,7 @@ runtime("Can't filter non-[e|l]clist"); } - INST(FI_ROA_CHECK_IMPLICIT, 0, 1) { /* ROA Check */ - NEVER_CONSTANT; - RTC(1); - struct rtable *table = rtc->table; - ACCESS_RTE; - ACCESS_EATTRS; - const net_addr *net = (*fs->rte)->net->n.addr; - - /* We ignore temporary attributes, probably not a problem here */ - /* 0x02 is a value of BA_AS_PATH, we don't want to include BGP headers */ - eattr *e = ea_find(*fs->eattrs, EA_CODE(PROTOCOL_BGP, 0x02)); - - if (!e || ((e->type & EAF_TYPE_MASK) != EAF_TYPE_AS_PATH)) - runtime("Missing AS_PATH attribute"); - - u32 as = 0; - as_path_get_last(e->u.ptr, &as); - - if (!table) - runtime("Missing ROA table"); - - if (table->addr_type != NET_ROA4 && table->addr_type != NET_ROA6) - runtime("Table type must be either ROA4 or ROA6"); - - if (table->addr_type != (net->type == NET_IP4 ? NET_ROA4 : NET_ROA6)) - RESULT(T_ENUM_ROA, i, ROA_UNKNOWN); /* Prefix and table type mismatch */ - else - RESULT(T_ENUM_ROA, i, [[ net_roa_check(table, net, as) ]]); - } - - INST(FI_ROA_CHECK_EXPLICIT, 2, 1) { /* ROA Check */ + INST(FI_ROA_CHECK, 2, 1) { /* ROA Check */ NEVER_CONSTANT; ARG(1, T_NET); ARG(2, T_INT); |