From 92a72a4cbdd010f69e8d054019770e55a47637e0 Mon Sep 17 00:00:00 2001 From: Ondrej Zajicek Date: Mon, 1 Jun 2009 19:32:41 +0200 Subject: Adds support for dynamic pair and bgp mask expressions. --- nest/a-path.c | 11 +++++++++-- nest/attrs.h | 3 ++- 2 files changed, 11 insertions(+), 3 deletions(-) (limited to 'nest') diff --git a/nest/a-path.c b/nest/a-path.c index f549987..dba214d 100644 --- a/nest/a-path.c +++ b/nest/a-path.c @@ -401,6 +401,7 @@ as_path_match(struct adata *path, struct f_path_mask *mask) struct pm_pos pos[2048 + 1]; int plen = parse_path(path, pos); int l, h, i, nh, nl; + u32 val; /* l and h are bound of interval of positions where are marked states */ @@ -424,14 +425,20 @@ as_path_match(struct adata *path, struct f_path_mask *mask) h = plen; break; - case PM_QUESTION: case PM_ASN: + val = mask->val; + goto step; + case PM_ASN_EXPR: + val = f_eval_asn((struct f_inst *) mask->val); + goto step; + case PM_QUESTION: + step: nh = -1; for (i = h; i >= l; i--) if (pos[i].mark) { pos[i].mark = 0; - if ((mask->kind == PM_QUESTION) || pm_match(pos + i, mask->val)) + if ((mask->kind == PM_QUESTION) || pm_match(pos + i, val)) pm_mark(pos, i, plen, &nl, &nh); } diff --git a/nest/attrs.h b/nest/attrs.h index 5542be6..b838ce9 100644 --- a/nest/attrs.h +++ b/nest/attrs.h @@ -35,11 +35,12 @@ int as_path_is_member(struct adata *path, u32 as); #define PM_ASN 0 #define PM_QUESTION 1 #define PM_ASTERISK 2 +#define PM_ASN_EXPR 3 struct f_path_mask { struct f_path_mask *next; int kind; - u32 val; + uintptr_t val; }; int as_path_match(struct adata *path, struct f_path_mask *mask); -- cgit v1.2.3