API client for p0f3
This is a simple API client for p0f3, available at http://lcamtuf.coredump.cx/p0f3/ . It is not compatible with version 2.x or 1.x. Start p0f with -s path/to/unix_socket option.
from p0f import P0f, P0fException data = None p0f = P0f("p0f.sock") # point this to socket defined with "-s" argument. try: data = p0f.get_info("192.168.0.1") except P0fException, e: # Invalid query was sent to p0f. Maybe the API has changed? print e except KeyError, e: # No data is available for this IP address. print e except ValueError, e: # p0f returned invalid constant values. Maybe the API has changed? print e if data: print "First seen:", data["first_seen"] print "Last seen:", data["last_seen"]
See examples/django_models.py for complete Django model of the data returned by p0f.
Django middleware is available in p0f.django.middleware.
To use, add P0FSOCKET = "path/to/p0f_unix_socket" to your project’s settings.py, and p0f.django.middleware.P0fMiddleware to MIDDLEWARE_CLASSES.
The middleware adds p0f attribute to all incoming requests. request.p0f is None if connection to p0f failed or p0f did not return data for remote IP address.
Parts of these descriptions are shamelessly copied from http://lcamtuf.coredump.cx/p0f3/README :
By default, following fields are parsed:
- datetime: first_seen
- datetime: last_seen
- timedelta: uptime
- int: uptime_sec
- timedelta: up_mod_days
- datetime: last_nat
- datetime: last_chg
Additionally, bad_sw and os_match_q are validated. “ValueError” is raised, if incorrect value is encountered. For all empty fields, None is used instead of empty strings or constants:
This parsing and validation can be disabled with
Full descriptions of the fields:
- int: first_seen - unix time (seconds) of first observation of the host.
- int: last_seen - unix time (seconds) of most recent traffic.
- int: total_conn - total number of connections seen.
- int: uptime_min - calculated system uptime, in minutes. Zero if not known.
- int: up_mod_days - uptime wrap-around interval, in days.
- int: last_nat - time of the most recent detection of IP sharing (NAT, load balancing, proxying). Zero if never detected.
- int: last_chg - time of the most recent individual OS mismatch (e.g., due to multiboot or IP reuse).
- int: distance - system distance (derived from TTL; -1 if no data).
- int: bad_sw - p0f thinks the User-Agent or Server strings aren’t accurate. The value of 1 means OS difference (possibly due to proxying), while 2 means an outright mismatch. NOTE: If User-Agent is not present at all, this value stays at 0.
- int: os_match_q - OS match quality: 0 for a normal match; 1 for fuzzy (e.g., TTL or DF difference); 2 for a generic signature; and 3 for both.
- string: os_name - Name of the most recent positively matched OS. If OS not known, os_name is empty string. NOTE: If the host is first seen using an known system and then switches to an unknown one, this field is not reset.
- string: os_flavor - OS version. May be empty if no data.
- string: http_name - most recent positively identified HTTP application (e.g. ‘Firefox’).
- string: http_flavor - version of the HTTP application, if any.
- string: link_type - network link type, if recognized.
- string: language - system language, if recognized.
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