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bol-van
2023-10-26 15:12:32 +03:00
parent 6f3a814f73
commit ac574ce2ce
63 changed files with 1584 additions and 573 deletions
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50
nfq/conntrack.c
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@@ -25,11 +25,16 @@ static void connswap(const t_conn *c, t_conn *c2)
c2->dport = c->sport;
}
static void ConntrackFreeElem(t_conntrack_pool *elem)
{
if (elem->track.hostname) free(elem->track.hostname);
free(elem);
}
static void ConntrackPoolDestroyPool(t_conntrack_pool **pp)
{
t_conntrack_pool *elem, *tmp;
HASH_ITER(hh, *pp, elem, tmp) { HASH_DEL(*pp, elem); free(elem); }
HASH_ITER(hh, *pp, elem, tmp) { HASH_DEL(*pp, elem); ConntrackFreeElem(elem); }
}
void ConntrackPoolDestroy(t_conntrack *p)
{
@@ -226,7 +231,7 @@ static bool ConntrackPoolDropPool(t_conntrack_pool **pp, const struct ip *ip, co
t=ConntrackPoolSearch(*pp,&connswp);
}
if (!t) return false;
HASH_DEL(*pp, t); free(t);
HASH_DEL(*pp, t); ConntrackFreeElem(t);
return true;
}
bool ConntrackPoolDrop(t_conntrack *p, const struct ip *ip, const struct ip6_hdr *ip6, const struct tcphdr *tcphdr, const struct udphdr *udphdr)
@@ -251,7 +256,7 @@ void ConntrackPoolPurge(t_conntrack *p)
t->conn.l4proto==IPPROTO_UDP &&
tidle>=p->timeout_udp)
{
HASH_DEL(p->pool, t); free(t);
HASH_DEL(p->pool, t); ConntrackFreeElem(t);
}
}
p->t_last_purge = tnow;
@@ -263,6 +268,18 @@ static void taddr2str(uint8_t l3proto, const t_addr *a, char *buf, size_t bufsiz
if (!inet_ntop(family_from_proto(l3proto), a, buf, bufsize) && bufsize) *buf=0;
}
static const char *ConntrackProtoName(t_l7proto proto)
{
switch(proto)
{
case HTTP: return "HTTP";
case TLS: return "TLS";
case QUIC: return "QUIC";
case WIREGUARD: return "WIREGUARD";
case DHT: return "DHT";
default: return "UNKNOWN";
}
}
void ConntrackPoolDump(const t_conntrack *p)
{
t_conntrack_pool *t, *tmp;
@@ -271,29 +288,24 @@ void ConntrackPoolDump(const t_conntrack *p)
HASH_ITER(hh, p->pool, t, tmp) {
taddr2str(t->conn.l3proto, &t->conn.src, sa1, sizeof(sa1));
taddr2str(t->conn.l3proto, &t->conn.dst, sa2, sizeof(sa2));
printf("%s [%s]:%u => [%s]:%u : %s : t0=%llu last=t0+%llu now=last+%llu packets_orig=d%llu/n%llu packets_reply=d%llu/n%llu ",
proto_name(t->conn.l4proto),
sa1, t->conn.sport, sa2, t->conn.dport,
t->conn.l4proto==IPPROTO_TCP ? connstate_s[t->track.state] : "-",
(unsigned long long)t->track.t_start, (unsigned long long)(t->track.t_last - t->track.t_start), (unsigned long long)(tnow - t->track.t_last),
(unsigned long long)t->track.pdcounter_orig, (unsigned long long)t->track.pcounter_orig,
(unsigned long long)t->track.pdcounter_reply, (unsigned long long)t->track.pcounter_reply);
if (t->conn.l4proto==IPPROTO_TCP)
printf("%s [%s]:%u => [%s]:%u : %s : t0=%llu last=t0+%llu now=last+%llu packets_orig=d%llu/n%llu packets_reply=d%llu/n%llu seq0=%u rseq=%u pos_orig=%u ack0=%u rack=%u pos_reply=%u wsize_orig=%u:%d wsize_reply=%u:%d",
proto_name(t->conn.l4proto),
sa1, t->conn.sport, sa2, t->conn.dport,
t->conn.l4proto==IPPROTO_TCP ? connstate_s[t->track.state] : "-",
(unsigned long long)t->track.t_start, (unsigned long long)(t->track.t_last - t->track.t_start), (unsigned long long)(tnow - t->track.t_last),
(unsigned long long)t->track.pdcounter_orig, (unsigned long long)t->track.pcounter_orig,
(unsigned long long)t->track.pdcounter_reply, (unsigned long long)t->track.pcounter_reply,
printf("seq0=%u rseq=%u pos_orig=%u ack0=%u rack=%u pos_reply=%u wsize_orig=%u:%d wsize_reply=%u:%d",
t->track.seq0, t->track.seq_last - t->track.seq0, t->track.pos_orig - t->track.seq0,
t->track.ack0, t->track.ack_last - t->track.ack0, t->track.pos_reply - t->track.ack0,
t->track.winsize_orig, t->track.scale_orig==SCALE_NONE ? -1 : t->track.scale_orig,
t->track.winsize_reply, t->track.scale_reply==SCALE_NONE ? -1 : t->track.scale_reply);
else
printf("%s [%s]:%u => [%s]:%u : %s : t0=%llu last=t0+%llu now=last+%llu packets_orig=d%llu/n%llu packets_reply=d%llu/n%llu rseq=%u pos_orig=%u rack=%u pos_reply=%u",
proto_name(t->conn.l4proto),
sa1, t->conn.sport, sa2, t->conn.dport,
t->conn.l4proto==IPPROTO_TCP ? connstate_s[t->track.state] : "-",
(unsigned long long)t->track.t_start, (unsigned long long)(t->track.t_last - t->track.t_start), (unsigned long long)(tnow - t->track.t_last),
(unsigned long long)t->track.pdcounter_orig, (unsigned long long)t->track.pcounter_orig,
(unsigned long long)t->track.pdcounter_reply, (unsigned long long)t->track.pcounter_reply,
printf("rseq=%u pos_orig=%u rack=%u pos_reply=%u",
t->track.seq_last, t->track.pos_orig,
t->track.ack_last, t->track.pos_reply);
printf(" cutoff=%u wss_cutoff=%u d_cutoff=%u\n",
t->track.b_cutoff, t->track.b_wssize_cutoff, t->track.b_desync_cutoff);
printf(" req_retrans=%u cutoff=%u wss_cutoff=%u d_cutoff=%u hostname=%s l7proto=%s\n",
t->track.req_retrans_counter, t->track.b_cutoff, t->track.b_wssize_cutoff, t->track.b_desync_cutoff, t->track.hostname, ConntrackProtoName(t->track.l7proto));
};
}