Filter: Allow to use set constants / expressions in path masks

Allow to not only use set literals in path masks, but also existing
set constants or set expressions.

2 files changed, 3 insertions, 3 deletions

diff --git a/nest/a-path.c b/nest/a-path.c
index 4ee34cf4..b6a30f54 100644
--- a/nest/a-path.c
+++ b/nest/a-path.c
@@ -741,7 +741,7 @@ pm_match(struct pm_pos *pos, u32 asn, u32 asn2)
 }
 
 static int
-pm_match_set(struct pm_pos *pos, struct f_tree *set)
+pm_match_set(struct pm_pos *pos, const struct f_tree *set)
 {
   struct f_val asn = { .type = T_INT };
 
diff --git a/nest/attrs.h b/nest/attrs.h
index a17b8c05..6fb0a8fa 100644
--- a/nest/attrs.h
+++ b/nest/attrs.h
@@ -65,8 +65,8 @@ static inline struct adata *as_path_prepend(struct linpool *pool, const struct a
 struct f_path_mask_item {
   union {
     u32 asn; /* PM_ASN */
-    struct f_line *expr; /* PM_ASN_EXPR */
-    struct f_tree *set; /* PM_ASN_SET */
+    const struct f_line *expr; /* PM_ASN_EXPR */
+    const struct f_tree *set; /* PM_ASN_SET */
     struct { /* PM_ASN_RANGE */
       u32 from;
       u32 to;