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Internal Structures and Definitions
[Remote Capture]


Data Structures

struct  activehosts
 Keeps a list of all the opened connections in the active mode. More...

struct  rpcap_auth
 Structure that keeps the data required for the authentication on the remote host. More...

struct  rpcap_filter
 General header used for the pcap_setfilter() command; keeps just the number of BPF instructions. More...

struct  rpcap_filterbpf_insn
 Structure that keeps a single BPF instuction; it is repeated 'ninsn' times according to the 'rpcap_filterbpf' header. More...

struct  rpcap_findalldevs_if
 Format of the message for the interface description (findalldevs command). More...

struct  rpcap_findalldevs_ifaddr
 Format of the message for the address listing (findalldevs command). More...

struct  rpcap_header
 Common header for all the RPCAP messages. More...

struct  rpcap_openreply
 Format of the message of the connection opening reply (open command). More...

struct  rpcap_pkthdr
 Format of the header which encapsulates captured packets when transmitted on the network. More...

struct  rpcap_sampling
 Structure that is needed to set sampling parameters. More...

struct  rpcap_startcapreply
 Format of the reply message that devoted to start a remote capture (startcap reply command). More...

struct  rpcap_startcapreq
 Format of the message that starts a remote capture (startcap command). More...

struct  rpcap_stats
 Structure that keeps the statistics about the number of packets captured, dropped, etc. More...


Defines

#define RPCAP_DEFAULT_NETPORT   "2002"
#define RPCAP_DEFAULT_NETPORT_ACTIVE   "2003"
#define RPCAP_DEFAULT_NETADDR   ""
#define RPCAP_VERSION   0
#define RPCAP_TIMEOUT_INIT   90
#define RPCAP_TIMEOUT_RUNTIME   180
#define RPCAP_ACTIVE_WAIT   30
#define RPCAP_SUSPEND_WRONGAUTH   1
#define RPCAP_NETBUF_SIZE   64000
 Buffer used by socket functions to send-receive packets. In case you plan to have messages larger than this value, you have to increase it.

#define RPCAP_HOSTLIST_SEP   " ,;\n\r"
 Separators used for the host list.

#define RPCAP_MSG_ERROR   1
#define RPCAP_MSG_FINDALLIF_REQ   2
#define RPCAP_MSG_OPEN_REQ   3
#define RPCAP_MSG_STARTCAP_REQ   4
#define RPCAP_MSG_UPDATEFILTER_REQ   5
#define RPCAP_MSG_CLOSE   6
#define RPCAP_MSG_PACKET   7
#define RPCAP_MSG_AUTH_REQ   8
#define RPCAP_MSG_STATS_REQ   9
#define RPCAP_MSG_ENDCAP_REQ   10
#define RPCAP_MSG_SETSAMPLING_REQ   11
#define RPCAP_MSG_FINDALLIF_REPLY   (128+RPCAP_MSG_FINDALLIF_REQ)
#define RPCAP_MSG_OPEN_REPLY   (128+RPCAP_MSG_OPEN_REQ)
#define RPCAP_MSG_STARTCAP_REPLY   (128+RPCAP_MSG_STARTCAP_REQ)
#define RPCAP_MSG_UPDATEFILTER_REPLY   (128+RPCAP_MSG_UPDATEFILTER_REQ)
#define RPCAP_MSG_AUTH_REPLY   (128+RPCAP_MSG_AUTH_REQ)
#define RPCAP_MSG_STATS_REPLY   (128+RPCAP_MSG_STATS_REQ)
#define RPCAP_MSG_ENDCAP_REPLY   (128+RPCAP_MSG_ENDCAP_REQ)
#define RPCAP_MSG_SETSAMPLING_REPLY   (128+RPCAP_MSG_SETSAMPLING_REQ)
#define RPCAP_STARTCAPREQ_FLAG_PROMISC   1
#define RPCAP_STARTCAPREQ_FLAG_DGRAM   2
#define RPCAP_STARTCAPREQ_FLAG_SERVEROPEN   4
#define RPCAP_STARTCAPREQ_FLAG_INBOUND   8
#define RPCAP_STARTCAPREQ_FLAG_OUTBOUND   16
#define RPCAP_UPDATEFILTER_BPF   1
#define PCAP_ERR_NETW   1
#define PCAP_ERR_INITTIMEOUT   2
#define PCAP_ERR_AUTH   3
#define PCAP_ERR_FINDALLIF   4
#define PCAP_ERR_NOREMOTEIF   5
#define PCAP_ERR_OPEN   6
#define PCAP_ERR_UPDATEFILTER   7
#define PCAP_ERR_GETSTATS   8
#define PCAP_ERR_READEX   9
#define PCAP_ERR_HOSTNOAUTH   10
#define PCAP_ERR_REMOTEACCEPT   11
#define PCAP_ERR_STARTCAPTURE   12
#define PCAP_ERR_ENDCAPTURE   13
#define PCAP_ERR_RUNTIMETIMEOUT   14
#define PCAP_ERR_SETSAMPLING   15
#define PCAP_ERR_WRONGMSG   16
#define PCAP_ERR_WRONGVER   17

Typedefs

typedef unsigned char uint8
 Provides an 8-bits unsigned integer.

typedef unsigned short uint16
 Provides a 16-bits unsigned integer.

typedef unsigned int uint32
 Provides a 32-bits unsigned integer.

typedef int int32
 Provides a 32-bits integer.


Detailed Description


Define Documentation

#define PCAP_ERR_AUTH   3
 

Generic authentication error

Definition at line 313 of file pcap-remote.h.

#define PCAP_ERR_ENDCAPTURE   13
 

Generic pcap_endcapture error

Definition at line 323 of file pcap-remote.h.

#define PCAP_ERR_FINDALLIF   4
 

Generic findalldevs error

Definition at line 314 of file pcap-remote.h.

#define PCAP_ERR_GETSTATS   8
 

Generic pcap_stats error

Definition at line 318 of file pcap-remote.h.

#define PCAP_ERR_HOSTNOAUTH   10
 

The host is not authorized to connect to this server

Definition at line 320 of file pcap-remote.h.

#define PCAP_ERR_INITTIMEOUT   2
 

The RPCAP initial timeout has expired

Definition at line 312 of file pcap-remote.h.

#define PCAP_ERR_NETW   1
 

Network error

Definition at line 311 of file pcap-remote.h.

#define PCAP_ERR_NOREMOTEIF   5
 

The findalldevs was ok, but the remote end had no interfaces to list

Definition at line 315 of file pcap-remote.h.

#define PCAP_ERR_OPEN   6
 

Generic pcap_open error

Definition at line 316 of file pcap-remote.h.

#define PCAP_ERR_READEX   9
 

Generic pcap_next_ex error

Definition at line 319 of file pcap-remote.h.

#define PCAP_ERR_REMOTEACCEPT   11
 

Generic pcap_remoteaccept error

Definition at line 321 of file pcap-remote.h.

#define PCAP_ERR_RUNTIMETIMEOUT   14
 

The RPCAP run-time timeout has expired

Definition at line 324 of file pcap-remote.h.

#define PCAP_ERR_SETSAMPLING   15
 

Error diring the settings of sampling parameters

Definition at line 325 of file pcap-remote.h.

#define PCAP_ERR_STARTCAPTURE   12
 

Generic pcap_startcapture error

Definition at line 322 of file pcap-remote.h.

#define PCAP_ERR_UPDATEFILTER   7
 

Generic updatefilter error

Definition at line 317 of file pcap-remote.h.

#define PCAP_ERR_WRONGMSG   16
 

The other end endpoint sent a message which has not been recognized

Definition at line 326 of file pcap-remote.h.

#define PCAP_ERR_WRONGVER   17
 

The other end endpoint ahs a version number that is not compatible with our

Definition at line 327 of file pcap-remote.h.

#define RPCAP_ACTIVE_WAIT   30
 

Waiting time betweek two attempts to open a connection, in active mode (default: 30 sec)

Definition at line 91 of file pcap-remote.h.

#define RPCAP_DEFAULT_NETADDR   ""
 

Default network address on which the RPCAP daemon binds to.

Definition at line 87 of file pcap-remote.h.

#define RPCAP_DEFAULT_NETPORT   "2002"
 

Default port on which the RPCAP daemon is waiting for connections.

Definition at line 84 of file pcap-remote.h.

Referenced by printusage().

#define RPCAP_DEFAULT_NETPORT_ACTIVE   "2003"
 

Default port on which the client workstation is waiting for connections in case of active mode.

Definition at line 86 of file pcap-remote.h.

#define RPCAP_HOSTLIST_SEP   " ,;\n\r"
 

Separators used for the host list.

It is used:

  • by the rpcapd daemon, when you types a list of allowed connecting hosts
  • by the rpcap in active mode, when the client waits for incoming connections from other hosts

Definition at line 108 of file pcap-remote.h.

#define RPCAP_MSG_AUTH_REPLY   (128+RPCAP_MSG_AUTH_REQ)
 

Sends a message that says 'ok, authorization successful'

Definition at line 295 of file pcap-remote.h.

Referenced by rpcap_sendauth().

#define RPCAP_MSG_AUTH_REQ   8
 

Message that keeps the authentication parameters

Definition at line 286 of file pcap-remote.h.

Referenced by daemon_checkauth().

#define RPCAP_MSG_CLOSE   6
 

Close the connection with the remote peer

Definition at line 284 of file pcap-remote.h.

Referenced by daemon_checkauth(), and daemon_serviceloop().

#define RPCAP_MSG_ENDCAP_REPLY   (128+RPCAP_MSG_ENDCAP_REQ)
 

Confirms that the capture stopped succesfully

Definition at line 297 of file pcap-remote.h.

#define RPCAP_MSG_ENDCAP_REQ   10
 

Stops the current capture, keeping the device open

Definition at line 288 of file pcap-remote.h.

Referenced by daemon_serviceloop().

#define RPCAP_MSG_ERROR   1
 

Message that keeps an error notification

Definition at line 279 of file pcap-remote.h.

Referenced by daemon_checkauth(), daemon_serviceloop(), pcap_findalldevs_ex(), pcap_opensource_remote(), pcap_setsampling_remote(), pcap_startcapture_remote(), rpcap_checkmsg(), rpcap_sendauth(), and rpcap_stats_remote().

#define RPCAP_MSG_FINDALLIF_REPLY   (128+RPCAP_MSG_FINDALLIF_REQ)
 

Keeps the list of all the remote interfaces

Definition at line 291 of file pcap-remote.h.

Referenced by pcap_findalldevs_ex().

#define RPCAP_MSG_FINDALLIF_REQ   2
 

Request to list all the remote interfaces

Definition at line 280 of file pcap-remote.h.

Referenced by daemon_serviceloop().

#define RPCAP_MSG_OPEN_REPLY   (128+RPCAP_MSG_OPEN_REQ)
 

The remote device has been opened correctly

Definition at line 292 of file pcap-remote.h.

Referenced by pcap_opensource_remote().

#define RPCAP_MSG_OPEN_REQ   3
 

Request to open a remote device

Definition at line 281 of file pcap-remote.h.

Referenced by daemon_serviceloop().

#define RPCAP_MSG_PACKET   7
 

This is a 'data' message, which carries a network packet

Definition at line 285 of file pcap-remote.h.

Referenced by pcap_read_nocb_remote().

#define RPCAP_MSG_SETSAMPLING_REPLY   (128+RPCAP_MSG_SETSAMPLING_REQ)
 

Confirms that the capture stopped succesfully

Definition at line 298 of file pcap-remote.h.

Referenced by pcap_setsampling_remote().

#define RPCAP_MSG_SETSAMPLING_REQ   11
 

Sset sampling parameters

Definition at line 289 of file pcap-remote.h.

Referenced by daemon_serviceloop().

#define RPCAP_MSG_STARTCAP_REPLY   (128+RPCAP_MSG_STARTCAP_REQ)
 

The capture is staarting correctly

Definition at line 293 of file pcap-remote.h.

Referenced by pcap_startcapture_remote().

#define RPCAP_MSG_STARTCAP_REQ   4
 

Request to start a capture on a remote device

Definition at line 282 of file pcap-remote.h.

Referenced by daemon_serviceloop().

#define RPCAP_MSG_STATS_REPLY   (128+RPCAP_MSG_STATS_REQ)
 

Message that keeps the network statistics

Definition at line 296 of file pcap-remote.h.

Referenced by rpcap_stats_remote().

#define RPCAP_MSG_STATS_REQ   9
 

It requires to have network statistics

Definition at line 287 of file pcap-remote.h.

Referenced by daemon_serviceloop().

#define RPCAP_MSG_UPDATEFILTER_REPLY   (128+RPCAP_MSG_UPDATEFILTER_REQ)
 

The filter has been applied correctly on the remote device

Definition at line 294 of file pcap-remote.h.

Referenced by pcap_updatefilter_remote().

#define RPCAP_MSG_UPDATEFILTER_REQ   5
 

Send a compiled filter into the remote device

Definition at line 283 of file pcap-remote.h.

Referenced by daemon_serviceloop().

#define RPCAP_NETBUF_SIZE   64000
 

Buffer used by socket functions to send-receive packets. In case you plan to have messages larger than this value, you have to increase it.

Definition at line 98 of file pcap-remote.h.

Referenced by daemon_findalldevs(), daemon_getstats(), daemon_getstatsnopcap(), daemon_opensource(), daemon_startcapture(), daemon_thrdatamain(), pcap_opensource_remote(), pcap_read_nocb_remote(), pcap_setsampling_remote(), pcap_startcapture_remote(), pcap_updatefilter_remote(), rpcap_sendauth(), and rpcap_senderror().

#define RPCAP_STARTCAPREQ_FLAG_DGRAM   2
 

Use a datagram (i.e. UDP) connection for the data stream (default: use TCP)

Definition at line 301 of file pcap-remote.h.

Referenced by daemon_startcapture(), and pcap_startcapture_remote().

#define RPCAP_STARTCAPREQ_FLAG_INBOUND   8
 

Capture only inbound packets (take care: the flag has no effects with promiscuous enabled)

Definition at line 303 of file pcap-remote.h.

#define RPCAP_STARTCAPREQ_FLAG_OUTBOUND   16
 

Capture only outbound packets (take care: the flag has no effects with promiscuous enabled)

Definition at line 304 of file pcap-remote.h.

#define RPCAP_STARTCAPREQ_FLAG_PROMISC   1
 

Enables promiscuous mode (default: disabled)

Definition at line 300 of file pcap-remote.h.

Referenced by pcap_startcapture_remote().

#define RPCAP_STARTCAPREQ_FLAG_SERVEROPEN   4
 

The server has to open the data connection toward the client

Definition at line 302 of file pcap-remote.h.

Referenced by daemon_startcapture(), and pcap_startcapture_remote().

#define RPCAP_SUSPEND_WRONGAUTH   1
 

If the authentication is wrong, stops 1 sec before accepting a new auth message

Definition at line 92 of file pcap-remote.h.

#define RPCAP_TIMEOUT_INIT   90
 

Initial timeout for RPCAP connections (default: 90 sec)

Definition at line 89 of file pcap-remote.h.

Referenced by daemon_serviceloop().

#define RPCAP_TIMEOUT_RUNTIME   180
 

Run-time timeout for RPCAP connections (default: 3 min)

Definition at line 90 of file pcap-remote.h.

Referenced by daemon_serviceloop().

#define RPCAP_UPDATEFILTER_BPF   1
 

This code tells us that the filter is encoded with the BPF/NPF syntax

Definition at line 307 of file pcap-remote.h.

Referenced by daemon_unpackapplyfilter().

#define RPCAP_VERSION   0
 

Present version of the RPCAP protocol (0 = Experimental).

Definition at line 88 of file pcap-remote.h.

Referenced by rpcap_checkver(), and rpcap_createhdr().


Typedef Documentation

typedef int int32
 

Provides a 32-bits integer.

Definition at line 117 of file pcap-remote.h.

Referenced by rpcap_checkmsg().

typedef unsigned short uint16
 

Provides a 16-bits unsigned integer.

Definition at line 115 of file pcap-remote.h.

Referenced by daemon_findalldevs(), rpcap_sendauth(), and rpcap_senderror().

typedef unsigned int uint32
 

Provides a 32-bits unsigned integer.

Definition at line 116 of file pcap-remote.h.

typedef unsigned char uint8
 

Provides an 8-bits unsigned integer.

Definition at line 114 of file pcap-remote.h.

Referenced by rpcap_checkmsg().


documentation. Copyright (c) 2002-2003 Politecnico di Torino. All rights reserved.