bool
_input_nmsg_filter(nmsg_input_t input, unsigned idx, Nmsg__NmsgPayload *np) {
assert(input->stream->nmsg != NULL);
/* payload crc */
if (input->stream->nmsg->n_payload_crcs >= (idx + 1)) {
uint32_t wire_crc = input->stream->nmsg->payload_crcs[idx];
uint32_t calc_crc = my_crc32c(np->payload.data, np->payload.len);
if (ntohl(wire_crc) != calc_crc) {
_nmsg_dprintf(1, "libnmsg: WARNING: crc mismatch (%x != %x) [%s]\n",
calc_crc, wire_crc, __func__);
return (false);
}
}
/* (vid, msgtype) */
if (input->do_filter == true &&
(input->filter_vid != np->vid ||
input->filter_msgtype != np->msgtype))
{
return (false);
}
/* source */
if (input->stream->source > 0 &&
input->stream->source != np->source)
{
return (false);
}
/* operator */
if (input->stream->operator > 0 &&
input->stream->operator != np->operator_)
{
return (false);
}
/* group */
if (input->stream->group > 0 &&
input->stream->group != np->group)
{
return (false);
}
/* all passed */
return (true);
}
uint32_t
mtbl_crc32c(const uint8_t *buf, size_t size)
{
return (my_crc32c(buf, size));
}
