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nfqws: auto hostlist debug log client and proto info

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This commit is contained in:
bol-van 2024-10-16 14:23:28 +03:00
parent 5963ba617a
commit 83a629b832
4 changed files with 35 additions and 23 deletions
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48
nfq/desync.c
View File

@ -291,7 +291,7 @@ static void ctrack_stop_retrans_counter(t_ctrack *ctrack)
}
}
static void auto_hostlist_reset_fail_counter(struct desync_profile *dp, const char *hostname)
static void auto_hostlist_reset_fail_counter(struct desync_profile *dp, const char *hostname, const char *client_ip_port, t_l7proto l7proto)
{
if (hostname)
{
@ -302,13 +302,13 @@ static void auto_hostlist_reset_fail_counter(struct desync_profile *dp, const ch
{
HostFailPoolDel(&dp->hostlist_auto_fail_counters, fail_counter);
DLOG("auto hostlist (profile %d) : %s : fail counter reset. website is working.\n", dp->n, hostname);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : fail counter reset. website is working.", hostname, dp->n);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : client %s : proto %s : fail counter reset. website is working.", hostname, dp->n, client_ip_port, l7proto_str(l7proto));
}
}
}
// return true if retrans trigger fires
static bool auto_hostlist_retrans(t_ctrack *ctrack, uint8_t l4proto, int threshold)
static bool auto_hostlist_retrans(t_ctrack *ctrack, uint8_t l4proto, int threshold, const char *client_ip_port, t_l7proto l7proto)
{
if (ctrack && ctrack->dp && ctrack->hostname_ah_check && ctrack->req_retrans_counter!=RETRANS_COUNTER_STOP)
{
@ -320,7 +320,7 @@ static bool auto_hostlist_retrans(t_ctrack *ctrack, uint8_t l4proto, int thresho
{
DLOG("req retrans : tcp seq %u not within the req range %u-%u. stop tracking.\n", ctrack->seq_last, ctrack->req_seq_start, ctrack->req_seq_end);
ctrack_stop_retrans_counter(ctrack);
auto_hostlist_reset_fail_counter(ctrack->dp, ctrack->hostname);
auto_hostlist_reset_fail_counter(ctrack->dp, ctrack->hostname, client_ip_port, l7proto);
return false;
}
}
@ -335,7 +335,7 @@ static bool auto_hostlist_retrans(t_ctrack *ctrack, uint8_t l4proto, int thresho
}
return false;
}
static void auto_hostlist_failed(struct desync_profile *dp, const char *hostname)
static void auto_hostlist_failed(struct desync_profile *dp, const char *hostname, const char *client_ip_port, t_l7proto l7proto)
{
hostfail_pool *fail_counter;
@ -351,7 +351,7 @@ static void auto_hostlist_failed(struct desync_profile *dp, const char *hostname
}
fail_counter->counter++;
DLOG("auto hostlist (profile %d) : %s : fail counter %d/%d\n", dp->n, hostname, fail_counter->counter, dp->hostlist_auto_fail_threshold);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : fail counter %d/%d", hostname, dp->n, fail_counter->counter, dp->hostlist_auto_fail_threshold);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : client %s : proto %s : fail counter %d/%d", hostname, dp->n, client_ip_port, l7proto_str(l7proto), fail_counter->counter, dp->hostlist_auto_fail_threshold);
if (fail_counter->counter >= dp->hostlist_auto_fail_threshold)
{
DLOG("auto hostlist (profile %d) : fail threshold reached. about to add %s to auto hostlist\n", dp->n, hostname);
@ -362,7 +362,7 @@ static void auto_hostlist_failed(struct desync_profile *dp, const char *hostname
if (!HostlistCheck(dp, hostname, &bExcluded) && !bExcluded)
{
DLOG("auto hostlist (profile %d) : adding %s to %s\n", dp->n, hostname, dp->hostlist_auto_filename);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : adding to %s", hostname, dp->n, dp->hostlist_auto_filename);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : client %s : proto %s : adding to %s", hostname, dp->n, client_ip_port, l7proto_str(l7proto), dp->hostlist_auto_filename);
if (!StrPoolAddStr(&dp->hostlist, hostname))
{
DLOG_ERR("StrPoolAddStr out of memory\n");
@ -378,17 +378,22 @@ static void auto_hostlist_failed(struct desync_profile *dp, const char *hostname
else
{
DLOG("auto hostlist (profile %d) : NOT adding %s\n", dp->n, hostname);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : NOT adding, duplicate detected", hostname, dp->n);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : client %s : proto %s : NOT adding, duplicate detected", hostname, dp->n, client_ip_port, l7proto_str(l7proto));
}
}
}
static void process_retrans_fail(t_ctrack *ctrack, uint8_t proto)
static void process_retrans_fail(t_ctrack *ctrack, uint8_t proto, const struct sockaddr *client)
{
if (ctrack && ctrack->dp && ctrack->hostname && auto_hostlist_retrans(ctrack, proto, ctrack->dp->hostlist_auto_retrans_threshold))
char client_ip_port[48];
if (*params.hostlist_auto_debuglog)
ntop46_port((struct sockaddr*)client,client_ip_port,sizeof(client_ip_port));
else
*client_ip_port=0;
if (ctrack && ctrack->dp && ctrack->hostname && auto_hostlist_retrans(ctrack, proto, ctrack->dp->hostlist_auto_retrans_threshold, client_ip_port, ctrack->l7proto))
{
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : tcp retrans threshold reached", ctrack->hostname, ctrack->dp->n);
auto_hostlist_failed(ctrack->dp, ctrack->hostname);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : client %s : proto %s : tcp retrans threshold reached", ctrack->hostname, ctrack->dp->n, client_ip_port, l7proto_str(ctrack->l7proto));
auto_hostlist_failed(ctrack->dp, ctrack->hostname, client_ip_port, ctrack->l7proto);
}
}
@ -710,10 +715,17 @@ static uint8_t dpi_desync_tcp_packet_play(bool replay, size_t reasm_offset, uint
if (ctrack && ctrack->hostname && ctrack->hostname_ah_check && (ctrack->ack_last-ctrack->ack0)==1)
{
bool bFail=false;
char client_ip_port[48];
if (*params.hostlist_auto_debuglog)
ntop46_port((struct sockaddr*)&dst,client_ip_port,sizeof(client_ip_port));
else
*client_ip_port=0;
if (tcphdr->th_flags & TH_RST)
{
DLOG("incoming RST detected for hostname %s\n", ctrack->hostname);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : incoming RST", ctrack->hostname, ctrack->dp->n);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : client %s : proto %s : incoming RST", ctrack->hostname, ctrack->dp->n, client_ip_port, l7proto_str(ctrack->l7proto));
bFail = true;
}
else if (len_payload && ctrack->l7proto==HTTP)
@ -725,7 +737,7 @@ static uint8_t dpi_desync_tcp_packet_play(bool replay, size_t reasm_offset, uint
if (bFail)
{
DLOG("redirect to another domain detected. possibly DPI redirect.\n");
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : redirect to another domain", ctrack->hostname, ctrack->dp->n);
HOSTLIST_DEBUGLOG_APPEND("%s : profile %d : client %s : proto %s : redirect to another domain", ctrack->hostname, ctrack->dp->n, client_ip_port, l7proto_str(ctrack->l7proto));
}
else
DLOG("local or in-domain redirect detected. it's not a DPI redirect.\n");
@ -737,10 +749,10 @@ static uint8_t dpi_desync_tcp_packet_play(bool replay, size_t reasm_offset, uint
}
}
if (bFail)
auto_hostlist_failed(dp, ctrack->hostname);
auto_hostlist_failed(dp, ctrack->hostname, client_ip_port, ctrack->l7proto);
else
if (len_payload)
auto_hostlist_reset_fail_counter(dp, ctrack->hostname);
auto_hostlist_reset_fail_counter(dp, ctrack->hostname, client_ip_port, ctrack->l7proto);
if (tcphdr->th_flags & TH_RST)
ConntrackClearHostname(ctrack); // do not react to further dup RSTs
}
@ -854,7 +866,7 @@ static uint8_t dpi_desync_tcp_packet_play(bool replay, size_t reasm_offset, uint
rlen_payload = ctrack->reasm_orig.size_present;
}
process_retrans_fail(ctrack, IPPROTO_TCP);
process_retrans_fail(ctrack, IPPROTO_TCP, (struct sockaddr*)&src);
if (IsHttp(rdata_payload,rlen_payload))
{
@ -1763,7 +1775,7 @@ static uint8_t dpi_desync_udp_packet_play(bool replay, size_t reasm_offset, uint
{
// first request is not retrans
if (ctrack_replay->hostname)
process_retrans_fail(ctrack_replay, IPPROTO_UDP);
process_retrans_fail(ctrack_replay, IPPROTO_UDP, (struct sockaddr*)&src);
else
ctrack_replay->hostname=strdup(host);
}

2
nfq/helpers.c
View File

@ -422,7 +422,7 @@ __attribute__((optimize ("no-strict-aliasing")))
void ip6_and(const struct in6_addr * restrict a, const struct in6_addr * restrict b, struct in6_addr * restrict result)
{
// int128 requires 16-bit alignment. in struct sockaddr_in6.sin6_addr is 8-byte aligned.
// it causes segfault on x64 arch with latest compiler. it can cause misalign slowdown on other archs
// it causes segfault on x64 arch with lastest compiler. it can cause misalign slowdown on other archs
// use 64-bit AND
((uint64_t*)result->s6_addr)[0] = ((uint64_t*)a->s6_addr)[0] & ((uint64_t*)b->s6_addr)[0];
((uint64_t*)result->s6_addr)[1] = ((uint64_t*)a->s6_addr)[1] & ((uint64_t*)b->s6_addr)[1];