PLG: SNMPDSC Fortinet support #1324

Signed-off-by: jokob-sk <jokob.sk@gmail.com>

front/plugins/snmp_discovery/README.md

@@ -6,7 +6,7 @@ A plugin for importing devices from an SNMP-enabled router or switch. Using SNMP
 
 Specify the following settings in the Settings section of NetAlertX:
 
-- `SNMPDSC_routers` - A list of `snmpwalk` commands to execute against IP addresses of routers/switches with SNMP turned on. For example: 
+- `SNMPDSC_routers` - A list of `snmpwalk` commands to execute against IP addresses of routers/switches with SNMP turned on. For example:
 
   - `snmpwalk -v 2c -c public -OXsq 192.168.1.1 .1.3.6.1.2.1.3.1.1.2`
   - `snmpwalk -v 2c -c public -Oxsq 192.168.1.1 .1.3.6.1.2.1.3.1.1.2` (note: lower case `x`)
@@ -14,6 +14,14 @@ Specify the following settings in the Settings section of NetAlertX:
 
 If unsure, please check [snmpwalk examples](https://www.comparitech.com/net-admin/snmpwalk-examples-windows-linux/).
 
+Supported output formats:
+
+```
+ipNetToMediaPhysAddress[3][192.168.1.9] 6C:6C:6C:6C:6C:b6C1
+IP-MIB::ipNetToMediaPhysAddress.17.10.10.3.202 = STRING: f8:81:1a:ef:ef:ef
+mib-2.3.1.1.2.15.1.192.168.1.14 "2C F4 32 18 61 43 "
+```
+
 ### Setup Cisco IOS
 
 Enable IOS SNMP service and restrict to selected (internal) IP/Subnet.

front/plugins/snmp_discovery/script.py

@@ -30,7 +30,7 @@ RESULT_FILE = os.path.join(LOG_PATH, f'last_result.{pluginName}.log')
 
 
 def main():
-    mylog('verbose', ['[SNMPDSC] In script '])
+    mylog('verbose', f"[{pluginName}] In script ")
 
     # init global variables
     global snmpWalkCmds
@@ -57,7 +57,7 @@ def main():
             commands = [snmpWalkCmds]
 
         for cmd in commands:
-            mylog('verbose', ['[SNMPDSC] Router snmpwalk command: ', cmd])
+            mylog('verbose', [f"[{pluginName}] Router snmpwalk command: ", cmd])
             # split the string, remove white spaces around each item, and exclude any empty strings
             snmpwalkArgs = [arg.strip() for arg in cmd.split(' ') if arg.strip()]
 
@@ -72,7 +72,7 @@ def main():
                     timeout=(timeoutSetting)
                 )
 
-                mylog('verbose', ['[SNMPDSC] output: ', output])
+                mylog('verbose', [f"[{pluginName}] output: ", output])
 
                 lines = output.split('\n')
 
@@ -80,6 +80,8 @@ def main():
 
                     tmpSplt = line.split('"')
 
+                    # Expected Format:
+                    # mib-2.3.1.1.2.15.1.192.168.1.14 "2C F4 32 18 61 43 "
                     if len(tmpSplt) == 3:
 
                         ipStr = tmpSplt[0].split('.')[-4:]  # Get the last 4 elements to extract the IP
@@ -89,7 +91,7 @@ def main():
                             macAddress = ':'.join(macStr)
                             ipAddress = '.'.join(ipStr)
 
-                            mylog('verbose', [f'[SNMPDSC] IP: {ipAddress} MAC: {macAddress}'])
+                            mylog('verbose', [f"[{pluginName}] IP: {ipAddress} MAC: {macAddress}"])
 
                             plugin_objects.add_object(
                                 primaryId   = handleEmpty(macAddress),
@@ -100,8 +102,40 @@ def main():
                                 foreignKey  = handleEmpty(macAddress)  # Use the primary ID as the foreign key
                             )
                         else:
-                            mylog('verbose', ['[SNMPDSC] ipStr does not seem to contain a valid IP:', ipStr])
+                            mylog('verbose', [f"[{pluginName}] ipStr does not seem to contain a valid IP:", ipStr])
 
+                    # Expected Format:
+                    # IP-MIB::ipNetToMediaPhysAddress.17.10.10.3.202 = STRING: f8:81:1a:ef:ef:ef
+                    elif "ipNetToMediaPhysAddress" in line and "=" in line and "STRING:" in line:
+
+                        # Split on "=" → ["IP-MIB::ipNetToMediaPhysAddress.xxx.xxx.xxx.xxx ", " STRING: aa:bb:cc:dd:ee:ff"]
+                        left, right = line.split("=", 1)
+
+                        # Extract the MAC (right side)
+                        macAddress = right.split("STRING:")[-1].strip()
+                        macAddress = normalize_mac(macAddress)
+
+                        # Extract IP address from the left side
+                        # tail of the OID: last 4 integers = IPv4 address
+                        oid_parts = left.strip().split('.')
+                        ip_parts  = oid_parts[-4:]
+                        ipAddress = ".".join(ip_parts)
+
+                        mylog('verbose', [f"[{pluginName}] (fallback) IP: {ipAddress} MAC: {macAddress}"])
+
+                        plugin_objects.add_object(
+                            primaryId   = handleEmpty(macAddress),
+                            secondaryId = handleEmpty(ipAddress),
+                            watched1    = '(unknown)',
+                            watched2    = handleEmpty(snmpwalkArgs[6]),
+                            extra       = handleEmpty(line),
+                            foreignKey  = handleEmpty(macAddress)
+                        )
+
+                        continue
+
+                    # Expected Format:
+                    # ipNetToMediaPhysAddress[3][192.168.1.9] 6C:6C:6C:6C:6C:b6C1
                     elif line.startswith('ipNetToMediaPhysAddress'):
                         # Format: snmpwalk -OXsq output
                         parts = line.split()
@@ -110,7 +144,7 @@ def main():
                             ipAddress  = parts[0].split('[')[-1][:-1]
                             macAddress = normalize_mac(parts[1])
 
-                            mylog('verbose', [f'[SNMPDSC] IP: {ipAddress} MAC: {macAddress}'])
+                            mylog('verbose', [f"[{pluginName}] IP: {ipAddress} MAC: {macAddress}"])
 
                             plugin_objects.add_object(
                                 primaryId   = handleEmpty(macAddress),
@@ -121,7 +155,7 @@ def main():
                                 foreignKey  = handleEmpty(macAddress)
                             )
 
-    mylog('verbose', ['[SNMPDSC] Entries found: ', len(plugin_objects)])
+    mylog('verbose', [f"[{pluginName}] Entries found: ", len(plugin_objects)])
 
     plugin_objects.write_result_file()