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22 commits

Author SHA1 Message Date
Ivan Nardi
8ee8b740ea
First batch of make cppcheck clean up (#10878)
Rework the `cppcheck:` recipe so it is usable in practice:
  - `--enable=all` -> `--enable=warning,performance,portability`
    (drops the `style`/`information`/`unusedFunction` groups, which produced
    hundreds of opinion-level hits)
  - drop `--force` (was re-analyzing every file once per #ifdef combination;
    single files took 40+ min). Analyzes the default build config only.
  - add `-j $(shell nproc)` + `--cppcheck-build-dir=.cppcheck-build` for
    parallelism and incremental caching; `mkdir -p` the cache dir in the recipe
  - suppress checks that are noise for this codebase:
      * useInitializationList  - micro perf, POD members
      * duplInheritedMember    - intentional non-virtual name shadowing
        (operator[], swap, enqueue, incUses, lua, ...)
      * noCopyConstructor / noOperatorEq - the flagged classes
        (NetworkInterface, Ntop, Flow, ...) are non-copyable by design and
        always held by pointer; the fix cppcheck suggests (add operator=)
        is meaningless for them
  - .gitignore: ignore the new .cppcheck-build/ cache directory

FlowAlertsLoader::registerRisk (src/FlowAlertsLoader.cpp)
  Missing `else`: `alert_to_risk[alert_type.id] = risk` was executed even when
  `alert_type.id >= MAX_DEFINED_FLOW_ALERT_TYPE` -> out-of-bounds array write.
  The sibling registerAlert() already had the `else`.

Uninitialized ndpi_protocol structs (src/NetworkInterface.cpp x6,
src/LuaEngineInterface.cpp x1)
  Local `ndpi_protocol` values were only partially initialized (proto.* set,
  but breed/fpc/state/category/custom_category_userdata left indeterminate)
  and then passed by value to get_ndpi_full_proto_name() /
  get_ndpi_proto_category(). Added `memset(&x, 0, sizeof(x))` at each
  declaration, matching the existing convention elsewhere in the tree.

Uninitialized locals
  - src/ParserInterface.cpp: `src2dst_direction` was read on the
    `flow == NULL` path (getFlow() not called). Initialize to a defined value;
    the value is not otherwise observable on that path.
  - include/Bitmap.h (toHexString): if `buf_len <= 0` the first loop never
    runs and `strlen(buf)` reads uninitialized memory; also `strlen(buf) - 2`
    underflows (unsigned) when the string is shorter than 2 bytes. Null-
    terminate up front and hoist strlen into a `size_t`, iterate with
    `pos + 2 < len`.

src/NetworkInterface.cpp incNumHosts()/decNumHosts()
  `if (isShuttingDown() || (!host->isUnicastHost())) return;` - the second
  term is always false, the function already returned on `!isUnicastHost()`
  a few lines above. Dropped it.

include/NetworkInterface.h getActiveFlowsStats()
  Declaration and definition disagreed on the first two parameter *names*
  (`stats, status_stats` vs `ndpi_stats, stats`); types matched. Renamed the
  header params to match the implementation.

No behavioural change; each argument was already non-negative.

  - Interface id (`get_id()` returns int; kept int because 3 call sites test
    `== -1`) formatted with %u in redis-key macros -> cast the argument
    `(u_int)` at the call site:
      include/AutonomousSystem.h, include/Country.h,
      include/ObservationPoint.h, include/VLAN.h,
      src/BroadcastDomains.cpp (x2), src/HostPools.cpp, src/LocalHost.cpp,
      src/LuaEngineInterface.cpp (x3), src/NetworkInterface.cpp (x2),
      src/SyslogParserInterface.cpp
  - src/HTTPserver.cpp: `%d` with get_http_port()/get_https_port() (u_int)
    -> `%u`; the scanf-width builder `"%%%u[^|]..."` fed `int` macros -> `%d`
  - src/Flow.cpp: `"%u.%u.%u.%u"` with `int` octets from a `%d` sscanf -> `%d`;
    `%u` (arg 13) with get_protocol_category() enum -> cast `(u_int)`
  - src/MacManufacturers.cpp: `int _mac[3]` scanned with `%02x`
    (wants `unsigned int*`) -> declare `u_int _mac[3]`
  - src/StatsManager.cpp: `%lu` with `static_cast<long int>(key)` epoch values
    -> `%ld` (respects the explicit signed cast)
  - src/Trace.cpp: `"%s.%u"` with loop `int i` / `i + 1` -> `%d`
  - src/Prefs.cpp: `%u` in usage() help text fed CONST_DEFAULT_* /
    MAX_NUM_* / CLICKHOUSE_MAX_* int macros -> cast `(u_int)`

std::string / std::vector parameters taken by value, changed to `const &`
(declaration and definition kept in sync; none are virtual or overrides, so
callers are source-compatible):

  - AggregatedFlowsStats::setInfoKey
  - Flow::setL7JSON
  - CustomFlowLuaScriptAlert::setAlertMessage
  - CustomHostLuaScriptAlert::setAlertMessage, ctor (_msg)
  - ScanRealtimeAlert ctor (_alerts, std::vector)
  - CustomHostLuaScript::allocAlert (_msg)
  - OtherAlertableEntity::getAlertCachedValue / setAlertCacheValue /
    triggerAlert / releaseAlert (key, value)
  - HostAlert::init and HostAlert(HostCheckID, ...) ctor (_check_name)
  - Ntop::luaFlowCheckInfo / luaHostCheckInfo (check_name)
  - Ntop::incBlacklisHits (listname)
  - Ntop::setLuaCache (key, val)
2026-09-01 08:36:01 +02:00
Alfredo Cardigliano
f19dfe650b Store labels in historical flows and show them in the flow list
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2026-04-28 12:51:24 +02:00
Alfredo Cardigliano
4b41152001 Implement alert/notifications filtering by labels
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2026-04-24 14:55:02 +02:00
Luca Deri
edee5e5cda Code format 2026-03-15 10:50:50 +01:00
Alfredo Cardigliano
0dd78b4958 Update (c) 2026-01-02 09:11:30 +01:00
Alfredo Cardigliano
44f34e7485 Implement generic Bitmap. Rework Bitmap128 to use Bitmap. Add Bitmap4096. 2025-10-09 11:26:00 +02:00
Alfredo Cardigliano
bfef98601c Rename Bitmap to UintBitmap to make class name self explanatory 2025-10-09 10:34:59 +02:00
Alfredo Cardigliano
9352d0cdcd Update copyright 2025-01-02 09:09:56 +01:00
Luca Deri
55870e97b9 (C) Update 2024-01-12 11:44:18 +01:00
lucaderi
d395deac4e Automated commit of clang-format CI changes. 2023-04-07 14:20:44 +00:00
Luca Deri
f726b867c7 Updated (C) 2023-01-01 16:37:57 +01:00
Alfredo Cardigliano
f2060f2488 Copyright update (C) 2022-01-03 09:35:09 +01:00
Simone Mainardi
4425cc54a8 Fixes buffer overflow in host alerts
Fixes #5959
2021-10-07 13:50:38 +02:00
Luca
a4047c5a1c Implements flow callbacks and alerts in C++
Scaffolding code of the host scripts

Scaffolding code for host alerts

Adds host_callbacks/ for .cpp files

Implements all classes for host callbacks

Removes pro/enterprise host callbacks

Adds typedefs with callback deltas

Compilation fix

Creates instances of host callbacks in loader

Link fix

Removes redundant/non-necessary host alerts

Merges Scan and Flood callbacks together

Removes outdated API files

Refactors alert keys into entity|id

Refactors all flow alert_{...} into flow_alert_{...}

Refactors C++ flow alert_{...} into flow_alert_{...}

Reworks alert ids to include an entity type

Cleanup and merge alertTypeRaw with getAlertType

Minor fix

Refactors alert definitions and keys into sub directories

Implement host alert callback execution and trigger/release logic

Update callbacks API

Adds base CallbacksLoader for {Host,Flow}CallbacksLoader

Implements load of host user scripts with periodicities

Implements runtime reload of host callbacks

Add logic for periodic callbacks

Add 'expired' flag to host alerts

Implements execution of host callbacks and SYN flood checks

Adds triggerAlertAsync calls to SYNFlood

Implements JSON host alert generation info

Handle callback getPeriod. Optimize callback lookup.

Implements host recipients in C++

Add callback status

Define destructor

Iterator fixes

Cleanup host Lua calls (now performed in C++)

Changes to show new host alerts in SQLite

Adds release/engage action on alert JSON

Move AlertableEntity to OtherAlertableEntity, inheriting from a new AlertableEntity. Add HostAlertableEntity.

Implements SYN Flood Attacker with params

Uses parametrized thresholds to trigger syn flood alerts

Implements build alert of both attacker and victim

Implement HostAlertableEntity

Implements SYN scan attacker/victim alerts

Implements flow flood attacker/victim alerts

Removes a debug flag

Add virtual allocStatus

Add HostAlert disableAutoRelease()

Add Ãexplicit releaseAlert()

Implements SYNFloodHostCallbackStatus

Implements SYNScanHostCallbackStatus

Implements FlowFloodHostCallbackStatus

Change trigger API to handle cli/src score

Implements {DNS,SMTP,NTP}ServerContactsAlert

Reworks ServerContacts host alerts

Implement exclusion bitmaps for host alerts

Implements {SMTP,DNS,NTP}ServerContactsAlert

Adds host_info to the generated alert JSON

Minor cleanup

Optimize access to callback status

Move RepliesRequestsRatio to pro

Rework triggerAlert on host to avoid multiple call and unneeded status data

Compilation fix

Reworked host alerts API (wip)

Cleanup unused host callbacks

Compilation fixes

Finishes backend implementation of host alerts exclusions

Rework host callbacks executor

Implements disable of host alerts

Port SYNFlood to the new api

Cleanup

Reduce duplicated code

Comments

Port ServerContacts to the new api

Clenaup

Adds parsing of configuration for host callbacks

Port SYNScanAlert to the new API

Port FlowFlood to the new API

Cleanup unused HostAlert getName

Reworks DNSRequestsErrorsRatioAlert

Adds JSON for DNSTrafficAlert

Adds FlowsAlert

Adds P2PTrafficAlert

Add RepliesRequestsRatioAlert

Adds ScoreAlert

Adds ThroughputAlert

Adds TrafficAlert

Fixes for scan/flood alerts

DNS ratio alert support

Add HTTP stats getters

Implements deltas for many host callbacks

Host score inc

Adds missing Alert params to host alerts

Release all host alerts on idle

Refactors score classes

Implements class Score to contain scores for hosts, flows, etc

Adds scores to VLANs, Networks, ASes and Countries

Host callbacks can trigger a single alert now

FlowFlood, SYNFloo, SYNScan now inherit from FlowHits

Move severity and score to constructor

Add else branch to hits callbacks

Alert definition update for flows_flood, syn_flood, syn_scan

Update field name

Engaged alert init

Adds score incs/decs for AS, VLAN, country, os and network

Restore network scripts

Restored other alert definitions for floods

Handle decreasing alert score

Removes include

Rename flows_flood to flow_flood for consistency

Restored alert_tcp_syn_flood_victim alert_tcp_syn_scan_victim definitions

Fixes for non-host engaged/release alerts

Cleanup LuaEngineFlow and LuaEngineHost classes

Fixes old calls to host lua during shutdown

Removes AlertCheckLuaEngine instance

Fixes purging of flows

Fixes alerts release upon shutdown causing wrong uses

Removes a debug flag

Fix getNumEngagedAlerts

Cleanup unnecessary host callbacks

Removes array of callback statuses inside host

Bitmap fixes

Refactors Bitmap into Bitmap128

Implements 16-bits bitmaps for host alerts

Adds class HostCallbacksStatus

Moves callback status p2p and DNS inside HostCallbacksStatus

Removes unused callbacks in typedefs

Minor cleanup

Adds trigger/release for DNS/p2p alerts

Reworks UI of hosts user scripts

Rename HostCallbackType to HostCallbackID, getType to getID, others
2021-04-03 09:53:15 +02:00
Simone Mainardi
8c31b70073 Fixes and simplifies counters for alerted flows 2021-03-23 13:23:09 +01:00
Simone Mainardi
aea9138bfb Implements flow callbacks and alerts in C++ 2021-03-22 09:51:36 +01:00
Luca Deri
e9ae852c03 Moved to 128 bit bitmaps 2021-02-25 18:17:57 +01:00
Luca Deri
a1178a0791 Updated (C) 2021-01-02 12:08:23 +01:00
Luca Deri
57e6a93065 Improved scheduling algorithm to guarantee minimum service time when number of entries allow
Updated (C)
2020-01-06 23:36:36 +01:00
emanuele-f
b3a8c6d49a Migrate C flow status alerts to Lua user scripts
- Alerts and flow status cleanup
- Community flow user scripts migration
- Implement scripts filters by l7 proto and packet interface only
- Migrate flow2statusinfojson
- Lower flow periodic update to 30 seconds if there is flow activity
- Display flow scripts without a gui section
2019-10-22 10:42:22 +02:00
emanuele-f
e0fd591db2 Add ability to reset a status bit 2019-10-16 16:21:18 +02:00
Luca
d1417519ec Reworked bitmap handling 2019-10-11 11:41:20 +02:00