diff options
Diffstat (limited to 'src/netlink_linearize.c')
| -rw-r--r-- | src/netlink_linearize.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/netlink_linearize.c b/src/netlink_linearize.c index 2c6848c5..5204154a 100644 --- a/src/netlink_linearize.c +++ b/src/netlink_linearize.c @@ -104,6 +104,27 @@ static void netlink_gen_concat(struct netlink_linearize_ctx *ctx, } } +static void netlink_gen_hash(struct netlink_linearize_ctx *ctx, + const struct expr *expr, + enum nft_registers dreg) +{ + enum nft_registers sreg; + struct nftnl_expr *nle; + + sreg = get_register(ctx, expr->hash.expr); + netlink_gen_expr(ctx, expr->hash.expr, sreg); + release_register(ctx, expr->hash.expr); + + nle = alloc_nft_expr("hash"); + netlink_put_register(nle, NFTNL_EXPR_HASH_SREG, sreg); + netlink_put_register(nle, NFTNL_EXPR_HASH_DREG, dreg); + nftnl_expr_set_u32(nle, NFTNL_EXPR_HASH_LEN, + div_round_up(expr->hash.expr->len, BITS_PER_BYTE)); + nftnl_expr_set_u32(nle, NFTNL_EXPR_HASH_MODULUS, expr->hash.mod); + nftnl_expr_set_u32(nle, NFTNL_EXPR_HASH_SEED, expr->hash.seed); + nftnl_rule_add_expr(ctx->nlr, nle); +} + static void netlink_gen_payload(struct netlink_linearize_ctx *ctx, const struct expr *expr, enum nft_registers dreg) @@ -629,6 +650,8 @@ static void netlink_gen_expr(struct netlink_linearize_ctx *ctx, return netlink_gen_expr(ctx, expr->key, dreg); case EXPR_NUMGEN: return netlink_gen_numgen(ctx, expr, dreg); + case EXPR_HASH: + return netlink_gen_hash(ctx, expr, dreg); default: BUG("unknown expression type %s\n", expr->ops->name); } |