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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2015-12-05 18:42:40 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-05-11 22:58:53 +0200 |
| commit | e30af92ea2c661af5de84a8f991947090c0243d2 (patch) | |
| tree | 3605e94f860ecdb1cdb8450a423564216cb0917b | |
| parent | a037b2e3867940ab7f786fbc5e6e4b7dc71d89f1 (diff) | |
evaluate: transfer right shifts to range side
This provides a generic way to transfer shifts from the left hand side
to the right hand range side of a relational expression when performing
transformations from the evaluation step.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| -rw-r--r-- | src/evaluate.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/evaluate.c b/src/evaluate.c index f862cd04..60bbce1b 100644 --- a/src/evaluate.c +++ b/src/evaluate.c @@ -1146,6 +1146,18 @@ static int binop_transfer(struct eval_ctx *ctx, struct expr **expr) if (binop_transfer_one(ctx, left, &(*expr)->right) < 0) return -1; break; + case EXPR_RANGE: + err = binop_can_transfer(ctx, left, (*expr)->right->left); + if (err <= 0) + return err; + err = binop_can_transfer(ctx, left, (*expr)->right->right); + if (err <= 0) + return err; + if (binop_transfer_one(ctx, left, &(*expr)->right->left) < 0) + return -1; + if (binop_transfer_one(ctx, left, &(*expr)->right->right) < 0) + return -1; + break; case EXPR_SET: list_for_each_entry(i, &(*expr)->right->expressions, list) { err = binop_can_transfer(ctx, left, i); |