#------------------------------------------------------------------------------- # Name: winpcapy.py # # Author: Massimo Ciani # # Created: 01/09/2009 # Copyright: (c) Massimo Ciani 2009 # #------------------------------------------------------------------------------- from ctypes import * from ctypes.util import find_library import sys WIN32=False HAVE_REMOTE=False if sys.platform.startswith('win'): WIN32=True HAVE_REMOTE=True if WIN32: SOCKET = c_uint _lib=CDLL('wpcap.dll') else: SOCKET = c_int _lib_name = find_library('pcap') if not _lib_name: raise OSError("Cannot fine libpcap.so library") _lib=CDLL(_lib_name) ## ## misc ## u_short = c_ushort bpf_int32 = c_int u_int = c_int bpf_u_int32 = u_int pcap = c_void_p pcap_dumper = c_void_p u_char = c_ubyte FILE = c_void_p STRING = c_char_p class bpf_insn(Structure): _fields_=[("code",c_ushort), ("jt",c_ubyte), ("jf",c_ubyte), ("k",bpf_u_int32)] class bpf_program(Structure): pass bpf_program._fields_ = [('bf_len', u_int), ('bf_insns', POINTER(bpf_insn))] class bpf_version(Structure): _fields_=[("bv_major",c_ushort), ("bv_minor",c_ushort)] class timeval(Structure): pass timeval._fields_ = [('tv_sec', c_long), ('tv_usec', c_long)] ## sockaddr is used by pcap_addr. ## For exapmle if sa_family==socket.AF_INET then we need cast ## with sockaddr_in if WIN32: class sockaddr(Structure): _fields_ = [("sa_family", c_ushort), ("sa_data",c_ubyte * 14)] class sockaddr_in(Structure): _fields_ = [("sin_family", c_ushort), ("sin_port", c_uint16), ("sin_addr", 4 * c_ubyte)] class sockaddr_in6(Structure): _fields_ = [("sin6_family", c_ushort), ("sin6_port", c_uint16), ("sin6_flowinfo", c_uint32), ("sin6_addr", 16 * c_ubyte), ("sin6_scope", c_uint32)] else: class sockaddr(Structure): _fields_ = [("sa_len", c_ubyte), ("sa_family",c_ubyte), ("sa_data",c_ubyte * 14)] class sockaddr_in(Structure): _fields_ = [("sin_len", c_ubyte), ("sin_family", c_ubyte), ("sin_port", c_uint16), ("sin_addr", 4 * c_ubyte), ("sin_zero", 8 * c_char)] class sockaddr_in6(Structure): _fields_ = [("sin6_len", c_ubyte), ("sin6_family", c_ubyte), ("sin6_port", c_uint16), ("sin6_flowinfo", c_uint32), ("sin6_addr", 16 * c_ubyte), ("sin6_scope", c_uint32)] class sockaddr_dl(Structure): _fields_ = [("sdl_len", c_ubyte), ("sdl_family", c_ubyte), ("sdl_index", c_ushort), ("sdl_type", c_ubyte), ("sdl_nlen", c_ubyte), ("sdl_alen", c_ubyte), ("sdl_slen", c_ubyte), ("sdl_data", 46 * c_ubyte)] ## ## END misc ## ## ## Data Structures ## ## struct pcap_file_header ## Header of a libpcap dump file. class pcap_file_header(Structure): _fields_ = [('magic', bpf_u_int32), ('version_major', u_short), ('version_minor', u_short), ('thiszone', bpf_int32), ('sigfigs', bpf_u_int32), ('snaplen', bpf_u_int32), ('linktype', bpf_u_int32)] ## struct pcap_pkthdr ## Header of a packet in the dump file. class pcap_pkthdr(Structure): _fields_ = [('ts', timeval), ('caplen', bpf_u_int32), ('len', bpf_u_int32)] ## struct pcap_stat ## Structure that keeps statistical values on an interface. class pcap_stat(Structure): pass ### _fields_ list in Structure is final. ### We need a temp list _tmpList=[] _tmpList.append(("ps_recv",c_uint)) _tmpList.append(("ps_drop",c_uint)) _tmpList.append(("ps_ifdrop",c_uint)) if HAVE_REMOTE: _tmpList.append(("ps_capt",c_uint)) _tmpList.append(("ps_sent",c_uint)) _tmpList.append(("ps_netdrop",c_uint)) pcap_stat._fields_=_tmpList ## struct pcap_addr ## Representation of an interface address, used by pcap_findalldevs(). class pcap_addr(Structure): pass pcap_addr._fields_ = [('next', POINTER(pcap_addr)), ('addr', POINTER(sockaddr)), ('netmask', POINTER(sockaddr)), ('broadaddr', POINTER(sockaddr)), ('dstaddr', POINTER(sockaddr))] ## struct pcap_if ## Item in a list of interfaces, used by pcap_findalldevs(). class pcap_if(Structure): pass pcap_if._fields_ = [('next', POINTER(pcap_if)), ('name', STRING), ('description', STRING), ('addresses', POINTER(pcap_addr)), ('flags', bpf_u_int32)] ## ## END Data Structures ## ## ## Defines ## ##define PCAP_VERSION_MAJOR 2 # Major libpcap dump file version. PCAP_VERSION_MAJOR = 2 ##define PCAP_VERSION_MINOR 4 # Minor libpcap dump file version. PCAP_VERSION_MINOR = 4 ##define PCAP_ERRBUF_SIZE 256 # Size to use when allocating the buffer that contains the libpcap errors. PCAP_ERRBUF_SIZE = 256 ##define PCAP_IF_LOOPBACK 0x00000001 # interface is loopback PCAP_IF_LOOPBACK = 1 ##define MODE_CAPT 0 # Capture mode, to be used when calling pcap_setmode(). MODE_CAPT = 0 ##define MODE_STAT 1 # Statistical mode, to be used when calling pcap_setmode(). MODE_STAT = 1 ## ## END Defines ## ## ## Typedefs ## #typedef int bpf_int32 (already defined) # 32-bit integer #typedef u_int bpf_u_int32 (already defined) # 32-bit unsigned integer #typedef struct pcap pcap_t # Descriptor of an open capture instance. This structure is opaque to the user, that handles its content through the functions provided by wpcap.dll. pcap_t = pcap #typedef struct pcap_dumper pcap_dumper_t # libpcap savefile descriptor. pcap_dumper_t = pcap_dumper #typedef struct pcap_if pcap_if_t # Item in a list of interfaces, see pcap_if. pcap_if_t = pcap_if #typedef struct pcap_addr pcap_addr_t # Representation of an interface address, see pcap_addr. pcap_addr_t = pcap_addr ## ## END Typedefs ## # values for enumeration 'pcap_direction_t' #pcap_direction_t = c_int # enum ## ## Unix-compatible Functions ## These functions are part of the libpcap library, and therefore work both on Windows and on Linux. ## #typedef void(* pcap_handler )(u_char *user, const struct pcap_pkthdr *pkt_header, const u_char *pkt_data) # Prototype of the callback function that receives the packets. ## This one is defined from programmer pcap_handler=CFUNCTYPE(None,POINTER(c_ubyte),POINTER(pcap_pkthdr),POINTER(c_ubyte)) #pcap_t * pcap_open_live (const char *device, int snaplen, int promisc, int to_ms, char *ebuf) # Open a live capture from the network. pcap_open_live = _lib.pcap_open_live pcap_open_live.restype = POINTER(pcap_t) pcap_open_live.argtypes = [STRING, c_int, c_int, c_int, STRING] #pcap_t * pcap_open_dead (int linktype, int snaplen) # Create a pcap_t structure without starting a capture. pcap_open_dead = _lib.pcap_open_dead pcap_open_dead.restype = POINTER(pcap_t) pcap_open_dead.argtypes = [c_int, c_int] #pcap_t * pcap_open_offline (const char *fname, char *errbuf) # Open a savefile in the tcpdump/libpcap format to read packets. pcap_open_offline = _lib.pcap_open_offline pcap_open_offline.restype = POINTER(pcap_t) pcap_open_offline.argtypes = [STRING, STRING] #pcap_dumper_t * pcap_dump_open (pcap_t *p, const char *fname) # Open a file to write packets. pcap_dump_open = _lib.pcap_dump_open pcap_dump_open.restype = POINTER(pcap_dumper_t) pcap_dump_open.argtypes = [POINTER(pcap_t), STRING] #int pcap_setnonblock (pcap_t *p, int nonblock, char *errbuf) # Switch between blocking and nonblocking mode. pcap_setnonblock = _lib.pcap_setnonblock pcap_setnonblock.restype = c_int pcap_setnonblock.argtypes = [POINTER(pcap_t), c_int, STRING] #int pcap_getnonblock (pcap_t *p, char *errbuf) # Get the "non-blocking" state of an interface. pcap_getnonblock = _lib.pcap_getnonblock pcap_getnonblock.restype = c_int pcap_getnonblock.argtypes = [POINTER(pcap_t), STRING] #int pcap_findalldevs (pcap_if_t **alldevsp, char *errbuf) # Construct a list of network devices that can be opened with pcap_open_live(). pcap_findalldevs = _lib.pcap_findalldevs pcap_findalldevs.restype = c_int pcap_findalldevs.argtypes = [POINTER(POINTER(pcap_if_t)), STRING] #void pcap_freealldevs (pcap_if_t *alldevsp) # Free an interface list returned by pcap_findalldevs(). pcap_freealldevs = _lib.pcap_freealldevs pcap_freealldevs.restype = None pcap_freealldevs.argtypes = [POINTER(pcap_if_t)] #char * pcap_lookupdev (char *errbuf) # Return the first valid device in the system. pcap_lookupdev = _lib.pcap_lookupdev pcap_lookupdev.restype = STRING pcap_lookupdev.argtypes = [STRING] #int pcap_lookupnet (const char *device, bpf_u_int32 *netp, bpf_u_int32 *maskp, char *errbuf) # Return the subnet and netmask of an interface. pcap_lookupnet = _lib.pcap_lookupnet pcap_lookupnet.restype = c_int pcap_lookupnet.argtypes = [STRING, POINTER(bpf_u_int32), POINTER(bpf_u_int32), STRING] #int pcap_dispatch (pcap_t *p, int cnt, pcap_handler callback, u_char *user) # Collect a group of packets. pcap_dispatch = _lib.pcap_dispatch pcap_dispatch.restype = c_int pcap_dispatch.argtypes = [POINTER(pcap_t), c_int, pcap_handler, POINTER(u_char)] #int pcap_loop (pcap_t *p, int cnt, pcap_handler callback, u_char *user) # Collect a group of packets. pcap_loop = _lib.pcap_loop pcap_loop.restype = c_int pcap_loop.argtypes = [POINTER(pcap_t), c_int, pcap_handler, POINTER(u_char)] #u_char * pcap_next (pcap_t *p, struct pcap_pkthdr *h) # Return the next available packet. pcap_next = _lib.pcap_next pcap_next.restype = POINTER(u_char) pcap_next.argtypes = [POINTER(pcap_t), POINTER(pcap_pkthdr)] #int pcap_next_ex (pcap_t *p, struct pcap_pkthdr **pkt_header, const u_char **pkt_data) # Read a packet from an interface or from an offline capture. pcap_next_ex = _lib.pcap_next_ex pcap_next_ex.restype = c_int pcap_next_ex.argtypes = [POINTER(pcap_t), POINTER(POINTER(pcap_pkthdr)), POINTER(POINTER(u_char))] #void pcap_breakloop (pcap_t *) # set a flag that will force pcap_dispatch() or pcap_loop() to return rather than looping. pcap_breakloop = _lib.pcap_breakloop pcap_breakloop.restype = None pcap_breakloop.argtypes = [POINTER(pcap_t)] #int pcap_sendpacket (pcap_t *p, u_char *buf, int size) # Send a raw packet. pcap_sendpacket = _lib.pcap_sendpacket pcap_sendpacket.restype = c_int #pcap_sendpacket.argtypes = [POINTER(pcap_t), POINTER(u_char), c_int] pcap_sendpacket.argtypes = [POINTER(pcap_t), c_void_p, c_int] #void pcap_dump (u_char *user, const struct pcap_pkthdr *h, const u_char *sp) # Save a packet to disk. pcap_dump = _lib.pcap_dump pcap_dump.restype = None pcap_dump.argtypes = [POINTER(pcap_dumper_t), POINTER(pcap_pkthdr), POINTER(u_char)] #long pcap_dump_ftell (pcap_dumper_t *) # Return the file position for a "savefile". pcap_dump_ftell = _lib.pcap_dump_ftell pcap_dump_ftell.restype = c_long pcap_dump_ftell.argtypes = [POINTER(pcap_dumper_t)] #int pcap_compile (pcap_t *p, struct bpf_program *fp, char *str, int optimize, bpf_u_int32 netmask) # Compile a packet filter, converting an high level filtering expression (see Filtering expression syntax) in a program that can be interpreted by the kernel-level filtering engine. pcap_compile = _lib.pcap_compile pcap_compile.restype = c_int pcap_compile.argtypes = [POINTER(pcap_t), POINTER(bpf_program), STRING, c_int, bpf_u_int32] #int pcap_compile_nopcap (int snaplen_arg, int linktype_arg, struct bpf_program *program, char *buf, int optimize, bpf_u_int32 mask) # Compile a packet filter without the need of opening an adapter. This function converts an high level filtering expression (see Filtering expression syntax) in a program that can be interpreted by the kernel-level filtering engine. pcap_compile_nopcap = _lib.pcap_compile_nopcap pcap_compile_nopcap.restype = c_int pcap_compile_nopcap.argtypes = [c_int, c_int, POINTER(bpf_program), STRING, c_int, bpf_u_int32] #int pcap_setfilter (pcap_t *p, struct bpf_program *fp) # Associate a filter to a capture. pcap_setfilter = _lib.pcap_setfilter pcap_setfilter.restype = c_int pcap_setfilter.argtypes = [POINTER(pcap_t), POINTER(bpf_program)] #void pcap_freecode (struct bpf_program *fp) # Free a filter. pcap_freecode = _lib.pcap_freecode pcap_freecode.restype = None pcap_freecode.argtypes = [POINTER(bpf_program)] #int pcap_datalink (pcap_t *p) # Return the link layer of an adapter. pcap_datalink = _lib.pcap_datalink pcap_datalink.restype = c_int pcap_datalink.argtypes = [POINTER(pcap_t)] #int pcap_list_datalinks (pcap_t *p, int **dlt_buf) # list datalinks pcap_list_datalinks = _lib.pcap_list_datalinks pcap_list_datalinks.restype = c_int #pcap_list_datalinks.argtypes = [POINTER(pcap_t), POINTER(POINTER(c_int))] #int pcap_set_datalink (pcap_t *p, int dlt) # Set the current data link type of the pcap descriptor to the type specified by dlt. -1 is returned on failure. pcap_set_datalink = _lib.pcap_set_datalink pcap_set_datalink.restype = c_int pcap_set_datalink.argtypes = [POINTER(pcap_t), c_int] #int pcap_datalink_name_to_val (const char *name) # Translates a data link type name, which is a DLT_ name with the DLT_ removed, to the corresponding data link type value. The translation is case-insensitive. -1 is returned on failure. pcap_datalink_name_to_val = _lib.pcap_datalink_name_to_val pcap_datalink_name_to_val.restype = c_int pcap_datalink_name_to_val.argtypes = [STRING] #const char * pcap_datalink_val_to_name (int dlt) # Translates a data link type value to the corresponding data link type name. NULL is returned on failure. pcap_datalink_val_to_name = _lib.pcap_datalink_val_to_name pcap_datalink_val_to_name.restype = STRING pcap_datalink_val_to_name.argtypes = [c_int] #const char * pcap_datalink_val_to_description (int dlt) # Translates a data link type value to a short description of that data link type. NULL is returned on failure. pcap_datalink_val_to_description = _lib.pcap_datalink_val_to_description pcap_datalink_val_to_description.restype = STRING pcap_datalink_val_to_description.argtypes = [c_int] #int pcap_snapshot (pcap_t *p) # Return the dimension of the packet portion (in bytes) that is delivered to the application. pcap_snapshot = _lib.pcap_snapshot pcap_snapshot.restype = c_int pcap_snapshot.argtypes = [POINTER(pcap_t)] #int pcap_is_swapped (pcap_t *p) # returns true if the current savefile uses a different byte order than the current system. pcap_is_swapped = _lib.pcap_is_swapped pcap_is_swapped.restype = c_int pcap_is_swapped.argtypes = [POINTER(pcap_t)] #int pcap_major_version (pcap_t *p) # return the major version number of the pcap library used to write the savefile. pcap_major_version = _lib.pcap_major_version pcap_major_version.restype = c_int pcap_major_version.argtypes = [POINTER(pcap_t)] #int pcap_minor_version (pcap_t *p) # return the minor version number of the pcap library used to write the savefile. pcap_minor_version = _lib.pcap_minor_version pcap_minor_version.restype = c_int pcap_minor_version.argtypes = [POINTER(pcap_t)] #FILE * pcap_file (pcap_t *p) # Return the standard stream of an offline capture. pcap_file=_lib.pcap_file pcap_file.restype = FILE pcap_file.argtypes = [POINTER(pcap_t)] #int pcap_stats (pcap_t *p, struct pcap_stat *ps) # Return statistics on current capture. pcap_stats = _lib.pcap_stats pcap_stats.restype = c_int pcap_stats.argtypes = [POINTER(pcap_t), POINTER(pcap_stat)] #void pcap_perror (pcap_t *p, char *prefix) # print the text of the last pcap library error on stderr, prefixed by prefix. pcap_perror = _lib.pcap_perror pcap_perror.restype = None pcap_perror.argtypes = [POINTER(pcap_t), STRING] #char * pcap_geterr (pcap_t *p) # return the error text pertaining to the last pcap library error. pcap_geterr = _lib.pcap_geterr pcap_geterr.restype = STRING pcap_geterr.argtypes = [POINTER(pcap_t)] #char * pcap_strerror (int error) # Provided in case strerror() isn't available. pcap_strerror = _lib.pcap_strerror pcap_strerror.restype = STRING pcap_strerror.argtypes = [c_int] #const char * pcap_lib_version (void) # Returns a pointer to a string giving information about the version of the libpcap library being used; note that it contains more information than just a version number. pcap_lib_version = _lib.pcap_lib_version pcap_lib_version.restype = STRING pcap_lib_version.argtypes = [] #void pcap_close (pcap_t *p) # close the files associated with p and deallocates resources. pcap_close = _lib.pcap_close pcap_close.restype = None pcap_close.argtypes = [POINTER(pcap_t)] #FILE * pcap_dump_file (pcap_dumper_t *p) # return the standard I/O stream of the 'savefile' opened by pcap_dump_open(). pcap_dump_file=_lib.pcap_dump_file pcap_dump_file.restype=FILE pcap_dump_file.argtypes= [POINTER(pcap_dumper_t)] #int pcap_dump_flush (pcap_dumper_t *p) # Flushes the output buffer to the ``savefile,'' so that any packets written with pcap_dump() but not yet written to the ``savefile'' will be written. -1 is returned on error, 0 on success. pcap_dump_flush = _lib.pcap_dump_flush pcap_dump_flush.restype = c_int pcap_dump_flush.argtypes = [POINTER(pcap_dumper_t)] #void pcap_dump_close (pcap_dumper_t *p) # Closes a savefile. pcap_dump_close = _lib.pcap_dump_close pcap_dump_close.restype = None pcap_dump_close.argtypes = [POINTER(pcap_dumper_t)] if not WIN32: pcap_get_selectable_fd = _lib.pcap_get_selectable_fd pcap_get_selectable_fd.restype = c_int pcap_get_selectable_fd.argtypes = [POINTER(pcap_t)] ########################################### ## Windows-specific Extensions ## The functions in this section extend libpcap to offer advanced functionalities ## (like remote packet capture, packet buffer size variation or high-precision packet injection). ## Howerver, at the moment they can be used only in Windows. ########################################### if WIN32: HANDLE = c_void_p ############## ## Identifiers related to the new source syntax ############## #define PCAP_SRC_FILE 2 #define PCAP_SRC_IFLOCAL 3 #define PCAP_SRC_IFREMOTE 4 #Internal representation of the type of source in use (file, remote/local interface). PCAP_SRC_FILE = 2 PCAP_SRC_IFLOCAL = 3 PCAP_SRC_IFREMOTE = 4 ############## ## Strings related to the new source syntax ############## #define PCAP_SRC_FILE_STRING "file://" #define PCAP_SRC_IF_STRING "rpcap://" #String that will be used to determine the type of source in use (file, remote/local interface). PCAP_SRC_FILE_STRING="file://" PCAP_SRC_IF_STRING="rpcap://" ############## ## Flags defined in the pcap_open() function ############## # define PCAP_OPENFLAG_PROMISCUOUS 1 # Defines if the adapter has to go in promiscuous mode. PCAP_OPENFLAG_PROMISCUOUS=1 # define PCAP_OPENFLAG_DATATX_UDP 2 # Defines if the data trasfer (in case of a remote capture) has to be done with UDP protocol. PCAP_OPENFLAG_DATATX_UDP=2 # define PCAP_OPENFLAG_NOCAPTURE_RPCAP 4 PCAP_OPENFLAG_NOCAPTURE_RPCAP=4 # Defines if the remote probe will capture its own generated traffic. # define PCAP_OPENFLAG_NOCAPTURE_LOCAL 8 PCAP_OPENFLAG_NOCAPTURE_LOCAL = 8 # define PCAP_OPENFLAG_MAX_RESPONSIVENESS 16 # This flag configures the adapter for maximum responsiveness. PCAP_OPENFLAG_MAX_RESPONSIVENESS=16 ############## ## Sampling methods defined in the pcap_setsampling() function ############## # define PCAP_SAMP_NOSAMP 0 # No sampling has to be done on the current capture. PCAP_SAMP_NOSAMP=0 # define PCAP_SAMP_1_EVERY_N 1 # It defines that only 1 out of N packets must be returned to the user. PCAP_SAMP_1_EVERY_N=1 #define PCAP_SAMP_FIRST_AFTER_N_MS 2 # It defines that we have to return 1 packet every N milliseconds. PCAP_SAMP_FIRST_AFTER_N_MS=2 ############## ## Authentication methods supported by the RPCAP protocol ############## # define RPCAP_RMTAUTH_NULL 0 # It defines the NULL authentication. RPCAP_RMTAUTH_NULL=0 # define RPCAP_RMTAUTH_PWD 1 # It defines the username/password authentication. RPCAP_RMTAUTH_PWD=1 ############## ## Remote struct and defines ############## # define PCAP_BUF_SIZE 1024 # Defines the maximum buffer size in which address, port, interface names are kept. PCAP_BUF_SIZE = 1024 # define RPCAP_HOSTLIST_SIZE 1024 # Maximum lenght of an host name (needed for the RPCAP active mode). RPCAP_HOSTLIST_SIZE = 1024 class pcap_send_queue(Structure): _fields_=[("maxlen",c_uint), ("len",c_uint), ("buffer",c_char_p)] ## struct pcap_rmtauth ## This structure keeps the information needed to autheticate the user on a remote machine class pcap_rmtauth(Structure): _fields_=[("type",c_int), ("username",c_char_p), ("password",c_char_p)] ## struct pcap_samp ## This structure defines the information related to sampling class pcap_samp(Structure): _fields_=[("method",c_int), ("value",c_int)] #PAirpcapHandle pcap_get_airpcap_handle (pcap_t *p) # Returns the AirPcap handler associated with an adapter. This handler can be used to change the wireless-related settings of the CACE Technologies AirPcap wireless capture adapters. #bool pcap_offline_filter (struct bpf_program *prog, const struct pcap_pkthdr *header, const u_char *pkt_data) # Returns if a given filter applies to an offline packet. pcap_offline_filter = _lib.pcap_offline_filter pcap_offline_filter.restype = c_bool pcap_offline_filter.argtypes = [POINTER(bpf_program),POINTER(pcap_pkthdr),POINTER(u_char)] #int pcap_live_dump (pcap_t *p, char *filename, int maxsize, int maxpacks) # Save a capture to file. pcap_live_dump = _lib.pcap_live_dump pcap_live_dump.restype = c_int pcap_live_dump.argtypes = [POINTER(pcap_t), POINTER(c_char), c_int,c_int] #int pcap_live_dump_ended (pcap_t *p, int sync) # Return the status of the kernel dump process, i.e. tells if one of the limits defined with pcap_live_dump() has been reached. pcap_live_dump_ended = _lib.pcap_live_dump_ended pcap_live_dump_ended.restype = c_int pcap_live_dump_ended.argtypes = [POINTER(pcap_t), c_int] #struct pcap_stat * pcap_stats_ex (pcap_t *p, int *pcap_stat_size) # Return statistics on current capture. pcap_stats_ex = _lib.pcap_stats_ex pcap_stats_ex.restype = POINTER(pcap_stat) pcap_stats_ex.argtypes = [POINTER(pcap_t), POINTER(c_int)] #int pcap_setbuff (pcap_t *p, int dim) # Set the size of the kernel buffer associated with an adapter. pcap_setbuff = _lib.pcap_setbuff pcap_setbuff.restype = c_int pcap_setbuff.argtypes = [POINTER(pcap_t), c_int] #int pcap_setmode (pcap_t *p, int mode) # Set the working mode of the interface p to mode. pcap_setmode = _lib.pcap_setmode pcap_setmode.restype = c_int pcap_setmode.argtypes = [POINTER(pcap_t), c_int] #int pcap_setmintocopy (pcap_t *p, int size) # Set the minumum amount of data received by the kernel in a single call. pcap_setmintocopy = _lib.pcap_setmintocopy pcap_setmintocopy.restype = c_int pcap_setmintocopy.argtype = [POINTER(pcap_t), c_int] #HANDLE pcap_getevent (pcap_t *p) # Return the handle of the event associated with the interface p. pcap_getevent = _lib.pcap_getevent pcap_getevent.restype = HANDLE pcap_getevent.argtypes = [POINTER(pcap_t)] #pcap_send_queue * pcap_sendqueue_alloc (u_int memsize) # Allocate a send queue. pcap_sendqueue_alloc = _lib.pcap_sendqueue_alloc pcap_sendqueue_alloc.restype = POINTER(pcap_send_queue) pcap_sendqueue_alloc.argtypes = [c_uint] #void pcap_sendqueue_destroy (pcap_send_queue *queue) # Destroy a send queue. pcap_sendqueue_destroy = _lib.pcap_sendqueue_destroy pcap_sendqueue_destroy.restype = None pcap_sendqueue_destroy.argtypes = [POINTER(pcap_send_queue)] #int pcap_sendqueue_queue (pcap_send_queue *queue, const struct pcap_pkthdr *pkt_header, const u_char *pkt_data) # Add a packet to a send queue. pcap_sendqueue_queue = _lib.pcap_sendqueue_queue pcap_sendqueue_queue.restype = c_int pcap_sendqueue_queue.argtypes = [POINTER(pcap_send_queue), POINTER(pcap_pkthdr), POINTER(u_char)] #u_int pcap_sendqueue_transmit (pcap_t *p, pcap_send_queue *queue, int sync) # Send a queue of raw packets to the network. pcap_sendqueue_transmit = _lib.pcap_sendqueue_transmit pcap_sendqueue_transmit.retype = u_int pcap_sendqueue_transmit.argtypes = [POINTER(pcap_t), POINTER(pcap_send_queue), c_int] #int pcap_findalldevs_ex (char *source, struct pcap_rmtauth *auth, pcap_if_t **alldevs, char *errbuf) # Create a list of network devices that can be opened with pcap_open(). pcap_findalldevs_ex = _lib.pcap_findalldevs_ex pcap_findalldevs_ex.retype = c_int pcap_findalldevs_ex.argtypes = [STRING, POINTER(pcap_rmtauth), POINTER(POINTER(pcap_if_t)), STRING] #int pcap_createsrcstr (char *source, int type, const char *host, const char *port, const char *name, char *errbuf) # Accept a set of strings (host name, port, ...), and it returns the complete source string according to the new format (e.g. 'rpcap://1.2.3.4/eth0'). pcap_createsrcstr = _lib.pcap_createsrcstr pcap_createsrcstr.restype = c_int pcap_createsrcstr.argtypes = [STRING, c_int, STRING, STRING, STRING, STRING] #int pcap_parsesrcstr (const char *source, int *type, char *host, char *port, char *name, char *errbuf) # Parse the source string and returns the pieces in which the source can be split. pcap_parsesrcstr = _lib.pcap_parsesrcstr pcap_parsesrcstr.retype = c_int pcap_parsesrcstr.argtypes = [STRING, POINTER(c_int), STRING, STRING, STRING, STRING] #pcap_t * pcap_open (const char *source, int snaplen, int flags, int read_timeout, struct pcap_rmtauth *auth, char *errbuf) # Open a generic source in order to capture / send (WinPcap only) traffic. pcap_open = _lib.pcap_open pcap_open.restype = POINTER(pcap_t) pcap_open.argtypes = [STRING, c_int, c_int, c_int, POINTER(pcap_rmtauth), STRING] #struct pcap_samp * pcap_setsampling (pcap_t *p) # Define a sampling method for packet capture. pcap_setsampling = _lib.pcap_setsampling pcap_setsampling.restype = POINTER(pcap_samp) pcap_setsampling.argtypes = [POINTER(pcap_t)] #SOCKET pcap_remoteact_accept (const char *address, const char *port, const char *hostlist, char *connectinghost, struct pcap_rmtauth *auth, char *errbuf) # Block until a network connection is accepted (active mode only). pcap_remoteact_accept = _lib.pcap_remoteact_accept pcap_remoteact_accept.restype = SOCKET pcap_remoteact_accept.argtypes = [STRING, STRING, STRING, STRING, POINTER(pcap_rmtauth), STRING] #int pcap_remoteact_close (const char *host, char *errbuf) # Drop an active connection (active mode only). pcap_remoteact_close = _lib.pcap_remoteact_close pcap_remoteact_close.restypes = c_int pcap_remoteact_close.argtypes = [STRING, STRING] #void pcap_remoteact_cleanup () # Clean the socket that is currently used in waiting active connections. pcap_remoteact_cleanup = _lib.pcap_remoteact_cleanup pcap_remoteact_cleanup.restypes = None pcap_remoteact_cleanup.argtypes = [] #int pcap_remoteact_list (char *hostlist, char sep, int size, char *errbuf) # Return the hostname of the host that have an active connection with us (active mode only). pcap_remoteact_list = _lib.pcap_remoteact_list pcap_remoteact_list.restype = c_int pcap_remoteact_list.argtypes = [STRING, c_char, c_int, STRING]