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net/lft/files/patch-include_libpcap_pcap-int.h

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				--- include/libpcap/pcap-int.h.orig 2017-06-06 09:31:54 UTC
				+++ include/libpcap/pcap-int.h
				@@ -0,0 +1,469 @@
				+/*
				+ * Copyright (c) 1994, 1995, 1996
				+ * The Regents of the University of California. All rights reserved.
				+ *
				+ * Redistribution and use in source and binary forms, with or without
				+ * modification, are permitted provided that the following conditions
				+ * are met:
				+ * 1. Redistributions of source code must retain the above copyright
				+ * notice, this list of conditions and the following disclaimer.
				+ * 2. Redistributions in binary form must reproduce the above copyright
				+ * notice, this list of conditions and the following disclaimer in the
				+ * documentation and/or other materials provided with the distribution.
				+ * 3. All advertising materials mentioning features or use of this software
				+ * must display the following acknowledgement:
				+ * This product includes software developed by the Computer Systems
				+ * Engineering Group at Lawrence Berkeley Laboratory.
				+ * 4. Neither the name of the University nor of the Laboratory may be used
				+ * to endorse or promote products derived from this software without
				+ * specific prior written permission.
				+ *
				+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
				+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
				+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
				+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
				+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
				+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
				+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
				+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
				+ * 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.
				+ */
				+
				+#ifndef pcap_int_h
				+#define pcap_int_h
				+
				+#include <pcap/pcap.h>
				+
				+#ifdef __cplusplus
				+extern "C" {
				+#endif
				+
				+#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*/
				+
				+/*
				+ * Swap byte ordering of unsigned long long timestamp on a big endian
				+ * machine.
				+ */
				+#define SWAPLL(ull) ((ull & 0xff00000000000000) >> 56) \| \
				+ ((ull & 0x00ff000000000000) >> 40) \| \
				+ ((ull & 0x0000ff0000000000) >> 24) \| \
				+ ((ull & 0x000000ff00000000) >> 8) \| \
				+ ((ull & 0x00000000ff000000) << 8) \| \
				+ ((ull & 0x0000000000ff0000) << 24) \| \
				+ ((ull & 0x000000000000ff00) << 40) \| \
				+ ((ull & 0x00000000000000ff) << 56)
				+
				+#else /* A recent Visual studio compiler or not VC */
				+
				+/*
				+ * Swap byte ordering of unsigned long long timestamp on a big endian
				+ * machine.
				+ */
				+#define SWAPLL(ull) ((ull & 0xff00000000000000LL) >> 56) \| \
				+ ((ull & 0x00ff000000000000LL) >> 40) \| \
				+ ((ull & 0x0000ff0000000000LL) >> 24) \| \
				+ ((ull & 0x000000ff00000000LL) >> 8) \| \
				+ ((ull & 0x00000000ff000000LL) << 8) \| \
				+ ((ull & 0x0000000000ff0000LL) << 24) \| \
				+ ((ull & 0x000000000000ff00LL) << 40) \| \
				+ ((ull & 0x00000000000000ffLL) << 56)
				+
				+#endif /* _MSC_VER */
				+
				+/*
				+ * 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.
				+ */
				+#define MAXIMUM_SNAPLEN 262144
				+
				+struct pcap_opt {
				+ char *device;
				+ int timeout; /* timeout for buffering */
				+ u_int buffer_size;
				+ int promisc;
				+ int rfmon; /* monitor mode */
				+ int immediate; /* immediate mode - deliver packets as soon as they arrive */
				+ int tstamp_type;
				+ int tstamp_precision;
				+};
				+
				+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 *);
				+typedef int (inject_op_t)(pcap_t , const void *, size_t);
				+typedef int (setfilter_op_t)(pcap_t , struct bpf_program *);
				+typedef int (setdirection_op_t)(pcap_t , pcap_direction_t);
				+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
				+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 {
				+ /*
				+ * 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;
				+#else
				+ int fd;
				+ int selectable_fd;
				+#endif /* _WIN32 */
				+
				+ /*
				+ * 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;
				+
				+ int snapshot;
				+ int linktype; /* Network linktype */
				+ int linktype_ext; /* Extended information stored in the linktype field of a file */
				+ int tzoff; /* timezone offset */
				+ int offset; /* offset for proper alignment */
				+ int activated; /* true if the capture is really started */
				+ int oldstyle; /* if we're opening with pcap_open_live() */
				+
				+ struct pcap_opt opt;
				+
				+ /*
				+ * 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;
				+
				+ /*
				+ * Flags to affect BPF code generation.
				+ */
				+ int bpf_codegen_flags;
				+
				+ /*
				+ * Placeholder for filter code if bpf not in kernel.
				+ */
				+ struct bpf_program fcode;
				+
				+ 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 */
				+
				+ /*
				+ * 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;
				+
				+ /*
				+ * 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
				+ * `struct timeval'; `struct timeval' has 32-bit tv_sec values on some
				+ * platforms and 64-bit tv_sec values on other platforms, and writing
				+ * out native `struct timeval' values would mean files could only be
				+ * read on systems with the same tv_sec size as the system on which
				+ * the file was written.
				+ */
				+
				+struct pcap_timeval {
				+ bpf_int32 tv_sec; /* seconds */
				+ bpf_int32 tv_usec; /* microseconds */
				+};
				+
				+/*
				+ * This is a `pcap_pkthdr' as actually stored in a savefile.
				+ *
				+ * Do not change the format of this structure, in any way (this includes
				+ * changes that only affect the length of fields in this structure),
				+ * and do not make the time stamp anything other than seconds and
				+ * microseconds (e.g., seconds and nanoseconds). Instead:
				+ *
				+ * introduce a new structure for the new format;
				+ *
				+ * send mail to "tcpdump-workers@lists.tcpdump.org", requesting
				+ * a new magic number for your new capture file format, and, when
				+ * you get the new magic number, put it in "savefile.c";
				+ *
				+ * use that magic number for save files with the changed record
				+ * header;
				+ *
				+ * make the code in "savefile.c" capable of reading files with
				+ * 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 by forking the branch at
				+ *
				+ * https://github.com/the-tcpdump-group/libpcap/issues
				+ *
				+ * 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 {
				+ struct pcap_timeval ts; /* time stamp */
				+ bpf_u_int32 caplen; /* length of portion present */
				+ bpf_u_int32 len; /* length this packet (off wire) */
				+};
				+
				+/*
				+ * How a `pcap_pkthdr' is actually stored in savefiles written
				+ * by some patched versions of libpcap (e.g. the ones in Red
				+ * Hat Linux 6.1 and 6.2).
				+ *
				+ * Do not change the format of this structure, in any way (this includes
				+ * changes that only affect the length of fields in this structure).
				+ * Instead, introduce a new structure, as per the above.
				+ */
				+
				+struct pcap_sf_patched_pkthdr {
				+ struct pcap_timeval ts; /* time stamp */
				+ bpf_u_int32 caplen; /* length of portion present */
				+ bpf_u_int32 len; /* length this packet (off wire) */
				+ int index;
				+ unsigned short protocol;
				+ unsigned char pkt_type;
				+};
				+
				+/*
				+ * 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
				+
				+int pcap_offline_read(pcap_t , int, pcap_handler, u_char );
				+
				+#include <stdarg.h>
				+
				+#include "portability.h"
				+
				+/*
				+ * 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)
				+int pcap_getnonblock_fd(pcap_t , char );
				+int pcap_setnonblock_fd(pcap_t p, int, char );
				+#endif
				+
				+/*
				+ * 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_check_activated(pcap_t *);
				+
				+/*
				+ * Internal interfaces for "pcap_findalldevs()".
				+ *
				+ * "pcap_platform_finddevs()" is a platform-dependent routine to
				+ * find local network 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 );
				+#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
				+
				+/*
				+ * 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 );
				+
				+int pcap_strcasecmp(const char , const char );
				+
				+#ifdef __cplusplus
				+}
				+#endif
				+
				+#endif