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-rw-r--r--src/expr/exthdr.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/expr/exthdr.c b/src/expr/exthdr.c
index 6489a48..deb0d7c 100644
--- a/src/expr/exthdr.c
+++ b/src/expr/exthdr.c
@@ -304,10 +304,30 @@ nftnl_expr_exthdr_snprintf(char *buf, size_t len, uint32_t type,
return -1;
}
+static bool nftnl_expr_exthdr_cmp(const struct nftnl_expr *e1,
+ const struct nftnl_expr *e2)
+{
+ struct nftnl_expr_exthdr *h1 = nftnl_expr_data(e1);
+ struct nftnl_expr_exthdr *h2 = nftnl_expr_data(e2);
+ bool eq = true;
+
+ if (e1->flags & (1 << NFTNL_EXPR_EXTHDR_DREG))
+ eq &= (h1->dreg == h2->dreg);
+ if (e1->flags & (1 << NFTNL_EXPR_EXTHDR_OFFSET))
+ eq &= (h1->offset == h2->offset);
+ if (e1->flags & (1 << NFTNL_EXPR_EXTHDR_LEN))
+ eq &= (h1->len == h2->len);
+ if (e1->flags & (1 << NFTNL_EXPR_EXTHDR_TYPE))
+ eq &= (h1->type == h2->type);
+
+ return eq;
+}
+
struct expr_ops expr_ops_exthdr = {
.name = "exthdr",
.alloc_len = sizeof(struct nftnl_expr_exthdr),
.max_attr = NFTA_EXTHDR_MAX,
+ .cmp = nftnl_expr_exthdr_cmp,
.set = nftnl_expr_exthdr_set,
.get = nftnl_expr_exthdr_get,
.parse = nftnl_expr_exthdr_parse,