To make something like "eth*" work for interval sets (match eth0, eth1, and so on...) we must treat the string as a 128 bit integer. Without this, segtree will do the wrong thing when applying the prefix, because we generate the prefix based on 'eth*' as input, with a length of 3. The correct import needs to be done on "eth\0\0\0\0\0\0\0...", i.e., if the input buffer were an ipv6 address, it should look like "eth\0::", not "::eth". Signed-off-by: Florian Westphal <fw@xxxxxxxxx> --- src/evaluate.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/evaluate.c b/src/evaluate.c index a20cc396b33f..788623137e58 100644 --- a/src/evaluate.c +++ b/src/evaluate.c @@ -338,9 +338,11 @@ static int expr_evaluate_string(struct eval_ctx *ctx, struct expr **exprp) *exprp = value; return 0; } + + data[datalen] = 0; value = constant_expr_alloc(&expr->location, ctx->ectx.dtype, BYTEORDER_HOST_ENDIAN, - datalen * BITS_PER_BYTE, data); + expr->len, data); prefix = prefix_expr_alloc(&expr->location, value, datalen * BITS_PER_BYTE); -- 2.35.1
