int
ccnl_i_prefixof_c(struct ccnl_prefix_s *prefix,
int minsuffix, int maxsuffix, struct ccnl_content_s *c)
{
unsigned char *md;
#ifdef USE_LOGGING
char prefixBuf1[CCNL_PREFIX_BUFSIZE], prefixBuf2[CCNL_PREFIX_BUFSIZE];
#endif
struct ccnl_prefix_s *p = c->pkt->pfx;
DEBUGMSG_CPFX(VERBOSE, "ccnl_i_prefixof_c prefix=<%s> content=<%s> min=%d max=%d\n",
ccnl_prefix2path(prefixBuf1, CCNL_ARRAY_SIZE(prefixBuf1), prefix),
ccnl_prefix2path(prefixBuf2, CCNL_ARRAY_SIZE(prefixBuf2), p),
minsuffix, maxsuffix);
if (!prefix || !p)
return 0;
// CONFORM: we do prefix match, honour min. and maxsuffix,
// NON-CONFORM: "Note that to match a ContentObject must satisfy
// all of the specifications given in the Interest Message."
// >> CCNL does not honour the exclusion filtering
if ( (prefix->compcnt + minsuffix) > (p->compcnt + 1) ||
(prefix->compcnt + maxsuffix) < (p->compcnt + 1)) {
DEBUGMSG_CPFX(TRACE, " mismatch in # of components\n");
return 0;
}
md = (prefix->compcnt - p->compcnt == 1) ? compute_ccnx_digest(c->pkt->buf) : NULL;
return ccnl_prefix_cmp(p, md, prefix, CMP_MATCH) == prefix->compcnt;
}
int ccnl_i_prefixof_c(struct ccnl_prefix_s *prefix, struct ccnl_buf_s *ppkd,
int minsuffix, int maxsuffix, struct ccnl_content_s *c)
{
unsigned char *md;
DEBUGMSG(99, "ccnl_i_prefixof_c prefix=%s min=%d max=%d\n",
ccnl_prefix_to_path(prefix), minsuffix, maxsuffix);
// CONFORM: we do prefix match, honour min. and maxsuffix,
// and check the PublisherPublicKeyDigest if present
// NON-CONFORM: "Note that to match a ContentObject must satisfy
// all of the specifications given in the Interest Message."
// >> CCNL does not honour the exclusion filtering
if ((ppkd && !buf_equal(ppkd, c->ppkd))
|| (prefix->compcnt + minsuffix) > (c->name->compcnt + 1)
|| (prefix->compcnt + maxsuffix) < (c->name->compcnt + 1)) {
return 0;
}
md = NULL;
if ((prefix->compcnt - c->name->compcnt) == 1) {
md = compute_ccnx_digest(c->pkt);
}
return ccnl_prefix_cmp(c->name, md, prefix, CMP_MATCH) == prefix->compcnt;
}
