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| author | Jeremy Sowden <jeremy@azazel.net> | 2020-03-03 09:48:30 +0000 |
|---|---|---|
| committer | Florian Westphal <fw@strlen.de> | 2020-03-04 23:36:41 +0100 |
| commit | 904bad2bcfa72cb197e9fe18db3c4681086000ea (patch) | |
| tree | a14437eee9b287f74d6ab14036235e41756aed25 /src/evaluate.c | |
| parent | 4ac2cd199fbae8f52d43db7c817527ba1c5dedaa (diff) | |
evaluate: convert the byte-order of payload statement arguments.
Since shift operations require host byte-order, we need to be able to
convert the result of the shift back to network byte-order, in a rule
like:
nft add rule ip t c tcp dport set tcp dport lshift 1
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'src/evaluate.c')
| -rw-r--r-- | src/evaluate.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/evaluate.c b/src/evaluate.c index a169e41b..9b1a04f2 100644 --- a/src/evaluate.c +++ b/src/evaluate.c @@ -2225,6 +2225,11 @@ static int stmt_evaluate_payload(struct eval_ctx *ctx, struct stmt *stmt) payload->byteorder, &stmt->payload.val) < 0) return -1; + if (!expr_is_constant(stmt->payload.val) && + byteorder_conversion(ctx, &stmt->payload.val, + payload->byteorder) < 0) + return -1; + need_csum = stmt_evaluate_payload_need_csum(payload); if (!payload_needs_adjustment(payload)) { |