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mirror of https://github.com/nmap/nmap.git synced 2025-12-24 08:29:04 +00:00

Upgrade to Npcap 0.08 (libpcap 1.8.0 headers for Windows)

This commit is contained in:
dmiller
2016-08-13 20:04:05 +00:00
parent 2e191df64d
commit af13cef717
20 changed files with 3602 additions and 2434 deletions

View File

@@ -29,8 +29,6 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#) $Header: /tcpdump/master/libpcap/pcap-int.h,v 1.85.2.9 2008-09-16 00:21:08 guy Exp $ (LBL)
*/
#ifndef pcap_int_h
@@ -42,22 +40,16 @@
extern "C" {
#endif
#ifdef HAVE_LIBDLPI
#include <libdlpi.h>
#endif
#ifdef WIN32
#include <Packet32.h>
extern CRITICAL_SECTION g_PcapCompileCriticalSection;
#endif /* WIN32 */
#ifdef HAVE_TC_API
#include "pcap-tc.h"
#endif
#ifdef MSDOS
#include <fcntl.h>
#include <io.h>
#if defined(_WIN32)
/*
* Make sure Packet32.h doesn't define BPF structures that we've
* probably already defined as a result of including <pcap/pcap.h>.
*/
#define BPF_MAJOR_VERSION
#include <Packet32.h>
#elif defined(MSDOS)
#include <fcntl.h>
#include <io.h>
#endif
#if (defined(_MSC_VER) && (_MSC_VER <= 1200)) /* we are compiling with Visual Studio 6, that doesn't support the LL suffix*/
@@ -93,154 +85,39 @@ extern CRITICAL_SECTION g_PcapCompileCriticalSection;
#endif /* _MSC_VER */
/*
* Savefile
* Maximum snapshot length.
*
* Somewhat arbitrary, but chosen to be:
*
* 1) big enough for maximum-size Linux loopback packets (65549)
* and some USB packets captured with USBPcap:
*
* http://desowin.org/usbpcap/
*
* (> 131072, < 262144)
*
* and
*
* 2) small enough not to cause attempts to allocate huge amounts of
* memory; some applications might use the snapshot length in a
* savefile header to control the size of the buffer they allocate,
* so a size of, say, 2^31-1 might not work well.
*
* We don't enforce this in pcap_set_snaplen(), but we use it internally.
*/
typedef enum {
NOT_SWAPPED,
SWAPPED,
MAYBE_SWAPPED
} swapped_type_t;
/*
* Used when reading a savefile.
*/
struct pcap_sf {
FILE *rfile;
int swapped;
size_t hdrsize;
swapped_type_t lengths_swapped;
int version_major;
int version_minor;
u_char *base;
};
/*
* Used when doing a live capture.
*/
struct pcap_md {
struct pcap_stat stat;
/*XXX*/
int use_bpf; /* using kernel filter */
u_long TotPkts; /* can't oflow for 79 hrs on ether */
u_long TotAccepted; /* count accepted by filter */
u_long TotDrops; /* count of dropped packets */
long TotMissed; /* missed by i/f during this run */
long OrigMissed; /* missed by i/f before this run */
char *device; /* device name */
int timeout; /* timeout for buffering */
int must_clear; /* stuff we must clear when we close */
struct pcap *next; /* list of open pcaps that need stuff cleared on close */
#ifdef linux
int sock_packet; /* using Linux 2.0 compatible interface */
int cooked; /* using SOCK_DGRAM rather than SOCK_RAW */
int ifindex; /* interface index of device we're bound to */
int lo_ifindex; /* interface index of the loopback device */
u_int packets_read; /* count of packets read with recvfrom() */
bpf_u_int32 oldmode; /* mode to restore when turning monitor mode off */
u_int tp_version; /* version of tpacket_hdr for mmaped ring */
u_int tp_hdrlen; /* hdrlen of tpacket_hdr for mmaped ring */
#endif /* linux */
#ifdef HAVE_DAG_API
#ifdef HAVE_DAG_STREAMS_API
u_char *dag_mem_bottom; /* DAG card current memory bottom pointer */
u_char *dag_mem_top; /* DAG card current memory top pointer */
#else /* HAVE_DAG_STREAMS_API */
void *dag_mem_base; /* DAG card memory base address */
u_int dag_mem_bottom; /* DAG card current memory bottom offset */
u_int dag_mem_top; /* DAG card current memory top offset */
#endif /* HAVE_DAG_STREAMS_API */
int dag_fcs_bits; /* Number of checksum bits from link layer */
int dag_offset_flags; /* Flags to pass to dag_offset(). */
int dag_stream; /* DAG stream number */
int dag_timeout; /* timeout specified to pcap_open_live.
* Same as in linux above, introduce
* generally? */
#endif /* HAVE_DAG_API */
#ifdef HAVE_ZEROCOPY_BPF
/*
* Zero-copy read buffer -- for zero-copy BPF. 'buffer' above will
* alternative between these two actual mmap'd buffers as required.
* As there is a header on the front size of the mmap'd buffer, only
* some of the buffer is exposed to libpcap as a whole via bufsize;
* zbufsize is the true size. zbuffer tracks the current zbuf
* assocated with buffer so that it can be used to decide which the
* next buffer to read will be.
*/
u_char *zbuf1, *zbuf2, *zbuffer;
u_int zbufsize;
u_int zerocopy;
u_int interrupted;
struct timespec firstsel;
/*
* If there's currently a buffer being actively processed, then it is
* referenced here; 'buffer' is also pointed at it, but offset by the
* size of the header.
*/
struct bpf_zbuf_header *bzh;
#endif /* HAVE_ZEROCOPY_BPF */
#ifdef HAVE_REMOTE
/*!
There is really a mess with previous variables, and it seems to me that they are not used
(they are used in pcap_pf.c only). I think we have to start using them.
The meaning is the following:
- TotPkts: the amount of packets received by the bpf filter, *before* applying the filter
- TotAccepted: the amount of packets that satisfies the filter
- TotDrops: the amount of packet that were dropped into the kernel buffer because of lack of space
- TotMissed: the amount of packets that were dropped by the physical interface; it is basically
the value of the hardware counter into the card. This number is never put to zero, so this number
takes into account the *total* number of interface drops starting from the interface power-on.
- OrigMissed: the amount of packets that were dropped by the interface *when the capture begins*.
This value is used to detect the number of packets dropped by the interface *during the present
capture*, so that (ps_ifdrops= TotMissed - OrigMissed).
*/
unsigned int TotNetDrops; //!< keeps the number of packets that have been dropped by the network
/*!
\brief It keeps the number of packets that have been received by the application.
Packets dropped by the kernel buffer are not counted in this variable. The variable is always
equal to (TotAccepted - TotDrops), exept for the case of remote capture, in which we have also
packets in fligh, i.e. that have been transmitted by the remote host, but that have not been
received (yet) from the client. In this case, (TotAccepted - TotDrops - TotNetDrops) gives a
wrong result, since this number does not corresponds always to the number of packet received by
the application. For this reason, in the remote capture we need another variable that takes
into account of the number of packets actually received by the application.
*/
unsigned int TotCapt;
#endif /* HAVE_REMOTE */
};
/*
* Stuff to clear when we close.
*/
#define MUST_CLEAR_PROMISC 0x00000001 /* promiscuous mode */
#define MUST_CLEAR_RFMON 0x00000002 /* rfmon (monitor) mode */
#define MAXIMUM_SNAPLEN 262144
struct pcap_opt {
int buffer_size;
char *source;
char *device;
int timeout; /* timeout for buffering */
u_int buffer_size;
int promisc;
int rfmon;
int rfmon; /* monitor mode */
int immediate; /* immediate mode - deliver packets as soon as they arrive */
int tstamp_type;
int tstamp_precision;
};
/*
* Ultrix, DEC OSF/1^H^H^H^H^H^H^H^H^HDigital UNIX^H^H^H^H^H^H^H^H^H^H^H^H
* Tru64 UNIX, and some versions of NetBSD pad FDDI packets to make everything
* line up on a nice boundary.
*/
#ifdef __NetBSD__
#include <sys/param.h> /* needed to declare __NetBSD_Version__ */
#endif
#if defined(ultrix) || defined(__osf__) || (defined(__NetBSD__) && __NetBSD_Version__ > 106000000)
#define PCAP_FDDIPAD 3
#endif
typedef int (*activate_op_t)(pcap_t *);
typedef int (*can_set_rfmon_op_t)(pcap_t *);
typedef int (*read_op_t)(pcap_t *, int cnt, pcap_handler, u_char *);
@@ -251,34 +128,70 @@ typedef int (*set_datalink_op_t)(pcap_t *, int);
typedef int (*getnonblock_op_t)(pcap_t *, char *);
typedef int (*setnonblock_op_t)(pcap_t *, int, char *);
typedef int (*stats_op_t)(pcap_t *, struct pcap_stat *);
#ifdef WIN32
#ifdef _WIN32
typedef struct pcap_stat *(*stats_ex_op_t)(pcap_t *, int *);
typedef int (*setbuff_op_t)(pcap_t *, int);
typedef int (*setmode_op_t)(pcap_t *, int);
typedef int (*setmintocopy_op_t)(pcap_t *, int);
typedef HANDLE (*getevent_op_t)(pcap_t *);
typedef int (*oid_get_request_op_t)(pcap_t *, bpf_u_int32, void *, size_t *);
typedef int (*oid_set_request_op_t)(pcap_t *, bpf_u_int32, const void *, size_t *);
typedef u_int (*sendqueue_transmit_op_t)(pcap_t *, pcap_send_queue *, int);
typedef int (*setuserbuffer_op_t)(pcap_t *, int);
typedef int (*live_dump_op_t)(pcap_t *, char *, int, int);
typedef int (*live_dump_ended_op_t)(pcap_t *, int);
typedef PAirpcapHandle (*get_airpcap_handle_op_t)(pcap_t *);
#endif
typedef void (*cleanup_op_t)(pcap_t *);
/*
* We put all the stuff used in the read code path at the beginning,
* to try to keep it together in the same cache line or lines.
*/
struct pcap {
#ifdef WIN32
/*
* Method to call to read packets on a live capture.
*/
read_op_t read_op;
/*
* Method to call to read packets from a savefile.
*/
int (*next_packet_op)(pcap_t *, struct pcap_pkthdr *, u_char **);
#ifdef _WIN32
ADAPTER *adapter;
LPPACKET Packet;
int nonblock;
#else
int fd;
int selectable_fd;
int send_fd;
#endif /* WIN32 */
#endif /* _WIN32 */
#ifdef HAVE_TC_API
TC_INSTANCE TcInstance;
TC_PACKETS_BUFFER TcPacketsBuffer;
ULONG TcAcceptedCount;
PCHAR PpiPacket;
#endif
/*
* Read buffer.
*/
u_int bufsize;
void *buffer;
u_char *bp;
int cc;
int break_loop; /* flag set to force break from packet-reading loop */
void *priv; /* private data for methods */
int swapped;
FILE *rfile; /* null if live capture, non-null if savefile */
u_int fddipad;
struct pcap *next; /* list of open pcaps that need stuff cleared on close */
/*
* File version number; meaningful only for a savefile, but we
* keep it here so that apps that (mistakenly) ask for the
* version numbers will get the same zero values that they
* always did.
*/
int version_major;
int version_minor;
#ifdef HAVE_LIBDLPI
dlpi_handle_t dlpi_hd;
#endif
int snapshot;
int linktype; /* Network linktype */
int linktype_ext; /* Extended information stored in the linktype field of a file */
@@ -287,60 +200,24 @@ struct pcap {
int activated; /* true if the capture is really started */
int oldstyle; /* if we're opening with pcap_open_live() */
int break_loop; /* flag set to force break from packet-reading loop */
#ifdef PCAP_FDDIPAD
int fddipad;
#endif
#ifdef MSDOS
void (*wait_proc)(void); /* call proc while waiting */
#endif
struct pcap_sf sf;
struct pcap_md md;
struct pcap_opt opt;
/*
* Read buffer.
*/
int bufsize;
u_char *buffer;
u_char *bp;
int cc;
/*
* Place holder for pcap_next().
*/
u_char *pkt;
#ifdef _WIN32
struct pcap_stat stat; /* used for pcap_stats_ex() */
#endif
/* We're accepting only packets in this direction/these directions. */
pcap_direction_t direction;
/*
* Methods.
* Flags to affect BPF code generation.
*/
activate_op_t activate_op;
can_set_rfmon_op_t can_set_rfmon_op;
read_op_t read_op;
inject_op_t inject_op;
setfilter_op_t setfilter_op;
setdirection_op_t setdirection_op;
set_datalink_op_t set_datalink_op;
getnonblock_op_t getnonblock_op;
setnonblock_op_t setnonblock_op;
stats_op_t stats_op;
#ifdef WIN32
/*
* These are, at least currently, specific to the Win32 NPF
* driver.
*/
setbuff_op_t setbuff_op;
setmode_op_t setmode_op;
setmintocopy_op_t setmintocopy_op;
#endif
cleanup_op_t cleanup_op;
int bpf_codegen_flags;
/*
* Placeholder for filter code if bpf not in kernel.
@@ -350,23 +227,57 @@ struct pcap {
char errbuf[PCAP_ERRBUF_SIZE + 1];
int dlt_count;
u_int *dlt_list;
int tstamp_type_count;
u_int *tstamp_type_list;
int tstamp_precision_count;
u_int *tstamp_precision_list;
struct pcap_pkthdr pcap_header; /* This is needed for the pcap_next_ex() to work */
#ifdef HAVE_REMOTE
/*! \brief '1' if we're the network client; needed by several functions (like pcap_setfilter() ) to know if
they have to use the socket or they have to open the local adapter. */
int rmt_clientside;
/*
* More methods.
*/
activate_op_t activate_op;
can_set_rfmon_op_t can_set_rfmon_op;
inject_op_t inject_op;
setfilter_op_t setfilter_op;
setdirection_op_t setdirection_op;
set_datalink_op_t set_datalink_op;
getnonblock_op_t getnonblock_op;
setnonblock_op_t setnonblock_op;
stats_op_t stats_op;
SOCKET rmt_sockctrl; //!< socket ID of the socket used for the control connection
SOCKET rmt_sockdata; //!< socket ID of the socket used for the data connection
int rmt_flags; //!< we have to save flags, since they are passed by the pcap_open_live(), but they are used by the pcap_startcapture()
int rmt_capstarted; //!< 'true' if the capture is already started (needed to knoe if we have to call the pcap_startcapture()
struct pcap_samp rmt_samp; //!< Keeps the parameters related to the sampling process.
char *currentfilter; //!< Pointer to a buffer (allocated at run-time) that stores the current filter. Needed when flag PCAP_OPENFLAG_NOCAPTURE_RPCAP is turned on.
#endif /* HAVE_REMOTE */
/*
* Routine to use as callback for pcap_next()/pcap_next_ex().
*/
pcap_handler oneshot_callback;
#ifdef _WIN32
/*
* These are, at least currently, specific to the Win32 NPF
* driver.
*/
stats_ex_op_t stats_ex_op;
setbuff_op_t setbuff_op;
setmode_op_t setmode_op;
setmintocopy_op_t setmintocopy_op;
getevent_op_t getevent_op;
oid_get_request_op_t oid_get_request_op;
oid_set_request_op_t oid_set_request_op;
sendqueue_transmit_op_t sendqueue_transmit_op;
setuserbuffer_op_t setuserbuffer_op;
live_dump_op_t live_dump_op;
live_dump_ended_op_t live_dump_ended_op;
get_airpcap_handle_op_t get_airpcap_handle_op;
#endif
cleanup_op_t cleanup_op;
};
/*
* BPF code generation flags.
*/
#define BPF_SPECIAL_VLAN_HANDLING 0x00000001 /* special VLAN handling for Linux */
/*
* This is a timeval as stored in a savefile.
* It has to use the same types everywhere, independent of the actual
@@ -403,12 +314,13 @@ struct pcap_timeval {
* the old record header as well as files with the new record header
* (using the magic number to determine the header format).
*
* Then supply the changes as a patch at
* Then supply the changes by forking the branch at
*
* http://sourceforge.net/projects/libpcap/
* https://github.com/the-tcpdump-group/libpcap/issues
*
* so that future versions of libpcap and programs that use it (such as
* tcpdump) will be able to read your new capture file format.
* and issuing a pull request, so that future versions of libpcap and
* programs that use it (such as tcpdump) will be able to read your new
* capture file format.
*/
struct pcap_sf_pkthdr {
@@ -436,71 +348,114 @@ struct pcap_sf_patched_pkthdr {
unsigned char pkt_type;
};
int yylex(void);
/*
* User data structure for the one-shot callback used for pcap_next()
* and pcap_next_ex().
*/
struct oneshot_userdata {
struct pcap_pkthdr *hdr;
const u_char **pkt;
pcap_t *pd;
};
#ifndef min
#define min(a, b) ((a) > (b) ? (b) : (a))
#endif
/* XXX should these be in pcap.h? */
int pcap_offline_read(pcap_t *, int, pcap_handler, u_char *);
int pcap_read(pcap_t *, int cnt, pcap_handler, u_char *);
#ifndef HAVE_STRLCPY
#define strlcpy(x, y, z) \
(strncpy((x), (y), (z)), \
((z) <= 0 ? 0 : ((x)[(z) - 1] = '\0')), \
strlen((y)))
#endif
#include <stdarg.h>
#if !defined(HAVE_SNPRINTF)
#define snprintf pcap_snprintf
extern int snprintf (char *, size_t, const char *, ...);
#endif
#include "portability.h"
#if !defined(HAVE_VSNPRINTF)
#define vsnprintf pcap_vsnprintf
extern int vsnprintf (char *, size_t, const char *, va_list ap);
#endif
/*
* Does the packet count argument to a module's read routine say
* "supply packets until you run out of packets"?
*/
#define PACKET_COUNT_IS_UNLIMITED(count) ((count) <= 0)
/*
* Routines that most pcap implementations can use for non-blocking mode.
*/
#if !defined(WIN32) && !defined(MSDOS)
#if !defined(_WIN32) && !defined(MSDOS)
int pcap_getnonblock_fd(pcap_t *, char *);
int pcap_setnonblock_fd(pcap_t *p, int, char *);
#endif
pcap_t *pcap_create_common(const char *, char *);
/*
* Internal interfaces for "pcap_create()".
*
* "pcap_create_interface()" is the routine to do a pcap_create on
* a regular network interface. There are multiple implementations
* of this, one for each platform type (Linux, BPF, DLPI, etc.),
* with the one used chosen by the configure script.
*
* "pcap_create_common()" allocates and fills in a pcap_t, for use
* by pcap_create routines.
*/
pcap_t *pcap_create_interface(const char *, char *);
pcap_t *pcap_create_common(char *, size_t);
int pcap_do_addexit(pcap_t *);
void pcap_add_to_pcaps_to_close(pcap_t *);
void pcap_remove_from_pcaps_to_close(pcap_t *);
void pcap_cleanup_live_common(pcap_t *);
int pcap_not_initialized(pcap_t *);
int pcap_check_activated(pcap_t *);
/*
* Internal interfaces for "pcap_findalldevs()".
*
* "pcap_platform_finddevs()" is a platform-dependent routine to
* add devices not found by the "standard" mechanisms (SIOCGIFCONF,
* "getifaddrs()", etc..
* find local network interfaces.
*
* "pcap_add_if()" adds an interface to the list of interfaces.
* "pcap_findalldevs_interfaces()" is a helper to find those interfaces
* using the "standard" mechanisms (SIOCGIFCONF, "getifaddrs()", etc.).
*
* "pcap_add_if()" adds an interface to the list of interfaces, for
* use by various "find interfaces" routines.
*/
int pcap_platform_finddevs(pcap_if_t **, char *);
int add_addr_to_iflist(pcap_if_t **, const char *, u_int, struct sockaddr *,
size_t, struct sockaddr *, size_t, struct sockaddr *, size_t,
struct sockaddr *, size_t, char *);
int pcap_add_if(pcap_if_t **, const char *, u_int, const char *, char *);
struct sockaddr *dup_sockaddr(struct sockaddr *, size_t);
int add_or_find_if(pcap_if_t **, pcap_if_t **, const char *, u_int,
#if !defined(_WIN32) && !defined(MSDOS)
int pcap_findalldevs_interfaces(pcap_if_t **, char *,
int (*)(const char *));
#endif
int add_addr_to_iflist(pcap_if_t **, const char *, bpf_u_int32,
struct sockaddr *, size_t, struct sockaddr *, size_t,
struct sockaddr *, size_t, struct sockaddr *, size_t, char *);
int add_addr_to_dev(pcap_if_t *, struct sockaddr *, size_t,
struct sockaddr *, size_t, struct sockaddr *, size_t,
struct sockaddr *dstaddr, size_t, char *errbuf);
int pcap_add_if(pcap_if_t **, const char *, bpf_u_int32, const char *,
char *);
int add_or_find_if(pcap_if_t **, pcap_if_t **, const char *, bpf_u_int32,
const char *, char *);
#ifndef _WIN32
bpf_u_int32 if_flags_to_pcap_flags(const char *, u_int);
#endif
#ifdef WIN32
char *pcap_win32strerror(void);
/*
* Internal interfaces for "pcap_open_offline()".
*
* "pcap_open_offline_common()" allocates and fills in a pcap_t, for use
* by pcap_open_offline routines.
*
* "sf_cleanup()" closes the file handle associated with a pcap_t, if
* appropriate, and frees all data common to all modules for handling
* savefile types.
*/
pcap_t *pcap_open_offline_common(char *ebuf, size_t size);
void sf_cleanup(pcap_t *p);
/*
* Internal interfaces for both "pcap_create()" and routines that
* open savefiles.
*
* "pcap_oneshot()" is the standard one-shot callback for "pcap_next()"
* and "pcap_next_ex()".
*/
void pcap_oneshot(u_char *, const struct pcap_pkthdr *, const u_char *);
#ifdef _WIN32
void pcap_win32_err_to_str(DWORD, char *);
#endif
int install_bpf_program(pcap_t *, struct bpf_program *);