diff options
| author | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2016-02-16 17:33:58 +0100 |
|---|---|---|
| committer | Ondrej Zajicek (work) <santiago@crfreenet.org> | 2016-02-16 17:33:58 +0100 |
| commit | 9c9cc35c0273f8bcae10fb8b546d199514b2bbc5 (patch) | |
| tree | 060b7ebe4012294ee4468a47cb4e73e3f6b1f0c1 /filter | |
| parent | c2106b674ca632f7c0bffd7cab4b1940f74d353c (diff) | |
Filter: Implement last_nonaggregated operator on bgp_path
Diffstat (limited to 'filter')
| -rw-r--r-- | filter/config.Y | 3 | ||||
| -rw-r--r-- | filter/filter.c | 8 |
2 files changed, 10 insertions, 1 deletions
diff --git a/filter/config.Y b/filter/config.Y index 7eb2c0a3..b94f5dff 100644 --- a/filter/config.Y +++ b/filter/config.Y @@ -283,7 +283,7 @@ CF_KEYWORDS(FUNCTION, PRINT, PRINTN, UNSET, RETURN, LEN, DEFINED, ADD, DELETE, CONTAINS, RESET, - PREPEND, FIRST, LAST, MATCH, + PREPEND, FIRST, LAST, LAST_NONAGGREGATED, MATCH, ROA_CHECK, EMPTY, FILTER, WHERE, EVAL) @@ -752,6 +752,7 @@ term: | term '.' MASK '(' term ')' { $$ = f_new_inst(); $$->code = P('i','M'); $$->a1.p = $1; $$->a2.p = $5; } | term '.' FIRST { $$ = f_new_inst(); $$->code = P('a','f'); $$->a1.p = $1; } | term '.' LAST { $$ = f_new_inst(); $$->code = P('a','l'); $$->a1.p = $1; } + | term '.' LAST_NONAGGREGATED { $$ = f_new_inst(); $$->code = P('a','L'); $$->a1.p = $1; } /* Communities */ /* This causes one shift/reduce conflict diff --git a/filter/filter.c b/filter/filter.c index 55062aca..eddf4228 100644 --- a/filter/filter.c +++ b/filter/filter.c @@ -1091,6 +1091,14 @@ interpret(struct f_inst *what) res.type = T_INT; res.val.i = as; break; + case P('a','L'): /* Get last ASN from non-aggregated part of AS PATH */ + ONEARG; + if (v1.type != T_PATH) + runtime( "AS path expected" ); + + res.type = T_INT; + res.val.i = as_path_get_last_nonaggregated(v1.val.ad); + break; case 'r': ONEARG; res = v1; |