| /* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ |
| /* |
| * Copyright (c) 1993, 1994, 1995, 1996, 1997 |
| * 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. |
| */ |
| |
| /* |
| * Remote packet capture mechanisms and extensions from WinPcap: |
| * |
| * Copyright (c) 2002 - 2003 |
| * NetGroup, Politecnico di Torino (Italy) |
| * 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. Neither the name of the Politecnico di Torino nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT |
| * OWNER 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 lib_pcap_pcap_h |
| #define lib_pcap_pcap_h |
| |
| /* |
| * Some software that uses libpcap/WinPcap/Npcap defines _MSC_VER before |
| * includeing pcap.h if it's not defined - and it defines it to 1500. |
| * (I'm looking at *you*, lwIP!) |
| * |
| * Attempt to detect this, and undefine _MSC_VER so that we can *reliably* |
| * use it to know what compiler is being used and, if it's Visual Studio, |
| * what version is being used. |
| */ |
| #if defined(_MSC_VER) |
| /* |
| * We assume here that software such as that doesn't define _MSC_FULL_VER |
| * as well and that it defines _MSC_VER with a value > 1200. |
| * |
| * DO NOT BREAK THESE ASSUMPTIONS. IF YOU FEEL YOU MUST DEFINE _MSC_VER |
| * WITH A COMPILER THAT'S NOT MICROSOFT'S C COMPILER, PLEASE CONTACT |
| * US SO THAT WE CAN MAKE IT SO THAT YOU DON'T HAVE TO DO THAT. THANK |
| * YOU. |
| * |
| * OK, is _MSC_FULL_VER defined? |
| */ |
| #if !defined(_MSC_FULL_VER) |
| /* |
| * According to |
| * |
| * https://sourceforge.net/p/predef/wiki/Compilers/ |
| * |
| * with "Visual C++ 6.0 Processor Pack"/Visual C++ 6.0 SP6 and |
| * later, _MSC_FULL_VER is defined, so either this is an older |
| * version of Visual C++ or it's not Visual C++ at all. |
| * |
| * For Visual C++ 6.0, _MSC_VER is defined as 1200. |
| */ |
| #if _MSC_VER > 1200 |
| /* |
| * If this is Visual C++, _MSC_FULL_VER should be defined, so we |
| * assume this isn't Visual C++, and undo the lie that it is. |
| */ |
| #undef _MSC_VER |
| #endif |
| #endif |
| #endif |
| |
| #include <pcap/funcattrs.h> |
| |
| #include <pcap/pcap-inttypes.h> |
| |
| #if defined(_WIN32) |
| #include <winsock2.h> /* u_int, u_char etc. */ |
| #include <io.h> /* _get_osfhandle() */ |
| #elif defined(MSDOS) |
| #include <sys/types.h> /* u_int, u_char etc. */ |
| #include <sys/socket.h> |
| #else /* UN*X */ |
| #include <sys/types.h> /* u_int, u_char etc. */ |
| #include <sys/time.h> |
| #endif /* _WIN32/MSDOS/UN*X */ |
| |
| #include <pcap/socket.h> /* for SOCKET, as the active-mode rpcap APIs use it */ |
| |
| #ifndef PCAP_DONT_INCLUDE_PCAP_BPF_H |
| #include <pcap/bpf.h> |
| #endif |
| |
| #include <stdio.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * Version number of the current version of the pcap file format. |
| * |
| * NOTE: this is *NOT* the version number of the libpcap library. |
| * To fetch the version information for the version of libpcap |
| * you're using, use pcap_lib_version(). |
| */ |
| #define PCAP_VERSION_MAJOR 2 |
| #define PCAP_VERSION_MINOR 4 |
| |
| #define PCAP_ERRBUF_SIZE 256 |
| |
| /* |
| * Compatibility for systems that have a bpf.h that |
| * predates the bpf typedefs for 64-bit support. |
| */ |
| #if BPF_RELEASE - 0 < 199406 |
| typedef int bpf_int32; |
| typedef u_int bpf_u_int32; |
| #endif |
| |
| typedef struct pcap pcap_t; |
| typedef struct pcap_dumper pcap_dumper_t; |
| typedef struct pcap_if pcap_if_t; |
| typedef struct pcap_addr pcap_addr_t; |
| |
| /* |
| * The first record in the file contains saved values for some |
| * of the flags used in the printout phases of tcpdump. |
| * Many fields here are 32 bit ints so compilers won't insert unwanted |
| * padding; these files need to be interchangeable across architectures. |
| * Documentation: https://www.tcpdump.org/manpages/pcap-savefile.5.txt. |
| * |
| * Do not change the layout of this structure, in any way (this includes |
| * changes that only affect the length of fields in this structure). |
| * |
| * Also, do not change the interpretation of any of the members of this |
| * structure, in any way (this includes using values other than |
| * LINKTYPE_ values, as defined in "savefile.c", in the "linktype" |
| * field). |
| * |
| * Instead: |
| * |
| * introduce a new structure for the new format, if the layout |
| * of the structure changed; |
| * |
| * 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 file |
| * header; |
| * |
| * make the code in "savefile.c" capable of reading files with |
| * the old file header as well as files with the new file 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/tree/master |
| * |
| * 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_file_header { |
| bpf_u_int32 magic; |
| u_short version_major; |
| u_short version_minor; |
| bpf_int32 thiszone; /* gmt to local correction; this is always 0 */ |
| bpf_u_int32 sigfigs; /* accuracy of timestamps; this is always 0 */ |
| bpf_u_int32 snaplen; /* max length saved portion of each pkt */ |
| bpf_u_int32 linktype; /* data link type (LINKTYPE_*) */ |
| }; |
| |
| /* |
| * Macros for the value returned by pcap_datalink_ext(). |
| * |
| * If LT_FCS_LENGTH_PRESENT(x) is true, the LT_FCS_LENGTH(x) macro |
| * gives the FCS length of packets in the capture. |
| */ |
| #define LT_FCS_LENGTH_PRESENT(x) ((x) & 0x04000000) |
| #define LT_FCS_LENGTH(x) (((x) & 0xF0000000) >> 28) |
| #define LT_FCS_DATALINK_EXT(x) ((((x) & 0xF) << 28) | 0x04000000) |
| |
| typedef enum { |
| PCAP_D_INOUT = 0, |
| PCAP_D_IN, |
| PCAP_D_OUT |
| } pcap_direction_t; |
| |
| /* |
| * Generic per-packet information, as supplied by libpcap. |
| * |
| * The time stamp can and should be a "struct timeval", regardless of |
| * whether your system supports 32-bit tv_sec in "struct timeval", |
| * 64-bit tv_sec in "struct timeval", or both if it supports both 32-bit |
| * and 64-bit applications. The on-disk format of savefiles uses 32-bit |
| * tv_sec (and tv_usec); this structure is irrelevant to that. 32-bit |
| * and 64-bit versions of libpcap, even if they're on the same platform, |
| * should supply the appropriate version of "struct timeval", even if |
| * that's not what the underlying packet capture mechanism supplies. |
| */ |
| struct pcap_pkthdr { |
| struct timeval ts; /* time stamp */ |
| bpf_u_int32 caplen; /* length of portion present */ |
| bpf_u_int32 len; /* length of this packet (off wire) */ |
| }; |
| |
| /* |
| * As returned by the pcap_stats() |
| */ |
| struct pcap_stat { |
| u_int ps_recv; /* number of packets received */ |
| u_int ps_drop; /* number of packets dropped */ |
| u_int ps_ifdrop; /* drops by interface -- only supported on some platforms */ |
| #ifdef _WIN32 |
| u_int ps_capt; /* number of packets that reach the application */ |
| u_int ps_sent; /* number of packets sent by the server on the network */ |
| u_int ps_netdrop; /* number of packets lost on the network */ |
| #endif /* _WIN32 */ |
| }; |
| |
| #ifdef MSDOS |
| /* |
| * As returned by the pcap_stats_ex() |
| */ |
| struct pcap_stat_ex { |
| u_long rx_packets; /* total packets received */ |
| u_long tx_packets; /* total packets transmitted */ |
| u_long rx_bytes; /* total bytes received */ |
| u_long tx_bytes; /* total bytes transmitted */ |
| u_long rx_errors; /* bad packets received */ |
| u_long tx_errors; /* packet transmit problems */ |
| u_long rx_dropped; /* no space in Rx buffers */ |
| u_long tx_dropped; /* no space available for Tx */ |
| u_long multicast; /* multicast packets received */ |
| u_long collisions; |
| |
| /* detailed rx_errors: */ |
| u_long rx_length_errors; |
| u_long rx_over_errors; /* receiver ring buff overflow */ |
| u_long rx_crc_errors; /* recv'd pkt with crc error */ |
| u_long rx_frame_errors; /* recv'd frame alignment error */ |
| u_long rx_fifo_errors; /* recv'r fifo overrun */ |
| u_long rx_missed_errors; /* recv'r missed packet */ |
| |
| /* detailed tx_errors */ |
| u_long tx_aborted_errors; |
| u_long tx_carrier_errors; |
| u_long tx_fifo_errors; |
| u_long tx_heartbeat_errors; |
| u_long tx_window_errors; |
| }; |
| #endif |
| |
| /* |
| * Item in a list of interfaces. |
| */ |
| struct pcap_if { |
| struct pcap_if *next; |
| char *name; /* name to hand to "pcap_open_live()" */ |
| char *description; /* textual description of interface, or NULL */ |
| struct pcap_addr *addresses; |
| bpf_u_int32 flags; /* PCAP_IF_ interface flags */ |
| }; |
| |
| #define PCAP_IF_LOOPBACK 0x00000001 /* interface is loopback */ |
| #define PCAP_IF_UP 0x00000002 /* interface is up */ |
| #define PCAP_IF_RUNNING 0x00000004 /* interface is running */ |
| #define PCAP_IF_WIRELESS 0x00000008 /* interface is wireless (*NOT* necessarily Wi-Fi!) */ |
| #define PCAP_IF_CONNECTION_STATUS 0x00000030 /* connection status: */ |
| #define PCAP_IF_CONNECTION_STATUS_UNKNOWN 0x00000000 /* unknown */ |
| #define PCAP_IF_CONNECTION_STATUS_CONNECTED 0x00000010 /* connected */ |
| #define PCAP_IF_CONNECTION_STATUS_DISCONNECTED 0x00000020 /* disconnected */ |
| #define PCAP_IF_CONNECTION_STATUS_NOT_APPLICABLE 0x00000030 /* not applicable */ |
| |
| /* |
| * Representation of an interface address. |
| */ |
| struct pcap_addr { |
| struct pcap_addr *next; |
| struct sockaddr *addr; /* address */ |
| struct sockaddr *netmask; /* netmask for that address */ |
| struct sockaddr *broadaddr; /* broadcast address for that address */ |
| struct sockaddr *dstaddr; /* P2P destination address for that address */ |
| }; |
| |
| typedef void (*pcap_handler)(u_char *, const struct pcap_pkthdr *, |
| const u_char *); |
| |
| /* |
| * Error codes for the pcap API. |
| * These will all be negative, so you can check for the success or |
| * failure of a call that returns these codes by checking for a |
| * negative value. |
| */ |
| #define PCAP_ERROR -1 /* generic error code */ |
| #define PCAP_ERROR_BREAK -2 /* loop terminated by pcap_breakloop */ |
| #define PCAP_ERROR_NOT_ACTIVATED -3 /* the capture needs to be activated */ |
| #define PCAP_ERROR_ACTIVATED -4 /* the operation can't be performed on already activated captures */ |
| #define PCAP_ERROR_NO_SUCH_DEVICE -5 /* no such device exists */ |
| #define PCAP_ERROR_RFMON_NOTSUP -6 /* this device doesn't support rfmon (monitor) mode */ |
| #define PCAP_ERROR_NOT_RFMON -7 /* operation supported only in monitor mode */ |
| #define PCAP_ERROR_PERM_DENIED -8 /* no permission to open the device */ |
| #define PCAP_ERROR_IFACE_NOT_UP -9 /* interface isn't up */ |
| #define PCAP_ERROR_CANTSET_TSTAMP_TYPE -10 /* this device doesn't support setting the time stamp type */ |
| #define PCAP_ERROR_PROMISC_PERM_DENIED -11 /* you don't have permission to capture in promiscuous mode */ |
| #define PCAP_ERROR_TSTAMP_PRECISION_NOTSUP -12 /* the requested time stamp precision is not supported */ |
| |
| /* |
| * Warning codes for the pcap API. |
| * These will all be positive and non-zero, so they won't look like |
| * errors. |
| */ |
| #define PCAP_WARNING 1 /* generic warning code */ |
| #define PCAP_WARNING_PROMISC_NOTSUP 2 /* this device doesn't support promiscuous mode */ |
| #define PCAP_WARNING_TSTAMP_TYPE_NOTSUP 3 /* the requested time stamp type is not supported */ |
| |
| /* |
| * Value to pass to pcap_compile() as the netmask if you don't know what |
| * the netmask is. |
| */ |
| #define PCAP_NETMASK_UNKNOWN 0xffffffff |
| |
| /* |
| * Initialize pcap. If this isn't called, pcap is initialized to |
| * a mode source-compatible and binary-compatible with older versions |
| * that lack this routine. |
| */ |
| |
| /* |
| * Initialization options. |
| * All bits not listed here are reserved for expansion. |
| * |
| * On UNIX-like systems, the local character encoding is assumed to be |
| * UTF-8, so no character encoding transformations are done. |
| * |
| * On Windows, the local character encoding is the local ANSI code page. |
| */ |
| #define PCAP_CHAR_ENC_LOCAL 0x00000000U /* strings are in the local character encoding */ |
| #define PCAP_CHAR_ENC_UTF_8 0x00000001U /* strings are in UTF-8 */ |
| |
| PCAP_AVAILABLE_1_10 |
| PCAP_API int pcap_init(unsigned int, char *); |
| |
| /* |
| * We're deprecating pcap_lookupdev() for various reasons (not |
| * thread-safe, can behave weirdly with WinPcap). Callers |
| * should use pcap_findalldevs() and use the first device. |
| */ |
| PCAP_AVAILABLE_0_4 |
| PCAP_API char *pcap_lookupdev(char *) |
| PCAP_DEPRECATED(pcap_lookupdev, "use 'pcap_findalldevs' and use the first device"); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_lookupnet(const char *, bpf_u_int32 *, bpf_u_int32 *, char *); |
| |
| PCAP_AVAILABLE_1_0 |
| PCAP_API pcap_t *pcap_create(const char *, char *); |
| |
| PCAP_AVAILABLE_1_0 |
| PCAP_API int pcap_set_snaplen(pcap_t *, int); |
| |
| PCAP_AVAILABLE_1_0 |
| PCAP_API int pcap_set_promisc(pcap_t *, int); |
| |
| PCAP_AVAILABLE_1_0 |
| PCAP_API int pcap_can_set_rfmon(pcap_t *); |
| |
| PCAP_AVAILABLE_1_0 |
| PCAP_API int pcap_set_rfmon(pcap_t *, int); |
| |
| PCAP_AVAILABLE_1_0 |
| PCAP_API int pcap_set_timeout(pcap_t *, int); |
| |
| PCAP_AVAILABLE_1_2 |
| PCAP_API int pcap_set_tstamp_type(pcap_t *, int); |
| |
| PCAP_AVAILABLE_1_5 |
| PCAP_API int pcap_set_immediate_mode(pcap_t *, int); |
| |
| PCAP_AVAILABLE_1_0 |
| PCAP_API int pcap_set_buffer_size(pcap_t *, int); |
| |
| PCAP_AVAILABLE_1_5 |
| PCAP_API int pcap_set_tstamp_precision(pcap_t *, int); |
| |
| PCAP_AVAILABLE_1_5 |
| PCAP_API int pcap_get_tstamp_precision(pcap_t *); |
| |
| PCAP_AVAILABLE_1_0 |
| PCAP_API int pcap_activate(pcap_t *); |
| |
| PCAP_AVAILABLE_1_2 |
| PCAP_API int pcap_list_tstamp_types(pcap_t *, int **); |
| |
| PCAP_AVAILABLE_1_2 |
| PCAP_API void pcap_free_tstamp_types(int *); |
| |
| PCAP_AVAILABLE_1_2 |
| PCAP_API int pcap_tstamp_type_name_to_val(const char *); |
| |
| PCAP_AVAILABLE_1_2 |
| PCAP_API const char *pcap_tstamp_type_val_to_name(int); |
| |
| PCAP_AVAILABLE_1_2 |
| PCAP_API const char *pcap_tstamp_type_val_to_description(int); |
| |
| #ifdef __linux__ |
| PCAP_AVAILABLE_1_9 |
| PCAP_API int pcap_set_protocol_linux(pcap_t *, int); |
| #endif |
| |
| /* |
| * Time stamp types. |
| * Not all systems and interfaces will necessarily support all of these. |
| * |
| * A system that supports PCAP_TSTAMP_HOST is offering time stamps |
| * provided by the host machine, rather than by the capture device, |
| * but not committing to any characteristics of the time stamp. |
| * |
| * PCAP_TSTAMP_HOST_LOWPREC is a time stamp, provided by the host machine, |
| * that's low-precision but relatively cheap to fetch; it's normally done |
| * using the system clock, so it's normally synchronized with times you'd |
| * fetch from system calls. |
| * |
| * PCAP_TSTAMP_HOST_HIPREC is a time stamp, provided by the host machine, |
| * that's high-precision; it might be more expensive to fetch. It is |
| * synchronized with the system clock. |
| * |
| * PCAP_TSTAMP_HOST_HIPREC_UNSYNCED is a time stamp, provided by the host |
| * machine, that's high-precision; it might be more expensive to fetch. |
| * It is not synchronized with the system clock, and might have |
| * problems with time stamps for packets received on different CPUs, |
| * depending on the platform. It might be more likely to be strictly |
| * monotonic than PCAP_TSTAMP_HOST_HIPREC. |
| * |
| * PCAP_TSTAMP_ADAPTER is a high-precision time stamp supplied by the |
| * capture device; it's synchronized with the system clock. |
| * |
| * PCAP_TSTAMP_ADAPTER_UNSYNCED is a high-precision time stamp supplied by |
| * the capture device; it's not synchronized with the system clock. |
| * |
| * Note that time stamps synchronized with the system clock can go |
| * backwards, as the system clock can go backwards. If a clock is |
| * not in sync with the system clock, that could be because the |
| * system clock isn't keeping accurate time, because the other |
| * clock isn't keeping accurate time, or both. |
| * |
| * Note that host-provided time stamps generally correspond to the |
| * time when the time-stamping code sees the packet; this could |
| * be some unknown amount of time after the first or last bit of |
| * the packet is received by the network adapter, due to batching |
| * of interrupts for packet arrival, queueing delays, etc.. |
| */ |
| #define PCAP_TSTAMP_HOST 0 /* host-provided, unknown characteristics */ |
| #define PCAP_TSTAMP_HOST_LOWPREC 1 /* host-provided, low precision, synced with the system clock */ |
| #define PCAP_TSTAMP_HOST_HIPREC 2 /* host-provided, high precision, synced with the system clock */ |
| #define PCAP_TSTAMP_ADAPTER 3 /* device-provided, synced with the system clock */ |
| #define PCAP_TSTAMP_ADAPTER_UNSYNCED 4 /* device-provided, not synced with the system clock */ |
| #define PCAP_TSTAMP_HOST_HIPREC_UNSYNCED 5 /* host-provided, high precision, not synced with the system clock */ |
| |
| /* |
| * Time stamp resolution types. |
| * Not all systems and interfaces will necessarily support all of these |
| * resolutions when doing live captures; all of them can be requested |
| * when reading a savefile. |
| */ |
| #define PCAP_TSTAMP_PRECISION_MICRO 0 /* use timestamps with microsecond precision, default */ |
| #define PCAP_TSTAMP_PRECISION_NANO 1 /* use timestamps with nanosecond precision */ |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API pcap_t *pcap_open_live(const char *, int, int, int, char *); |
| |
| PCAP_AVAILABLE_0_6 |
| PCAP_API pcap_t *pcap_open_dead(int, int); |
| |
| PCAP_AVAILABLE_1_5 |
| PCAP_API pcap_t *pcap_open_dead_with_tstamp_precision(int, int, u_int); |
| |
| PCAP_AVAILABLE_1_5 |
| PCAP_API pcap_t *pcap_open_offline_with_tstamp_precision(const char *, u_int, char *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API pcap_t *pcap_open_offline(const char *, char *); |
| |
| #ifdef _WIN32 |
| PCAP_AVAILABLE_1_5 |
| PCAP_API pcap_t *pcap_hopen_offline_with_tstamp_precision(intptr_t, u_int, char *); |
| |
| PCAP_API pcap_t *pcap_hopen_offline(intptr_t, char *); |
| /* |
| * If we're building libpcap, these are internal routines in savefile.c, |
| * so we must not define them as macros. |
| * |
| * If we're not building libpcap, given that the version of the C runtime |
| * with which libpcap was built might be different from the version |
| * of the C runtime with which an application using libpcap was built, |
| * and that a FILE structure may differ between the two versions of the |
| * C runtime, calls to _fileno() must use the version of _fileno() in |
| * the C runtime used to open the FILE *, not the version in the C |
| * runtime with which libpcap was built. (Maybe once the Universal CRT |
| * rules the world, this will cease to be a problem.) |
| */ |
| #ifndef BUILDING_PCAP |
| #define pcap_fopen_offline_with_tstamp_precision(f,p,b) \ |
| pcap_hopen_offline_with_tstamp_precision(_get_osfhandle(_fileno(f)), p, b) |
| #define pcap_fopen_offline(f,b) \ |
| pcap_hopen_offline(_get_osfhandle(_fileno(f)), b) |
| #endif |
| #else /*_WIN32*/ |
| PCAP_AVAILABLE_1_5 |
| PCAP_API pcap_t *pcap_fopen_offline_with_tstamp_precision(FILE *, u_int, char *); |
| |
| PCAP_AVAILABLE_0_9 |
| PCAP_API pcap_t *pcap_fopen_offline(FILE *, char *); |
| #endif /*_WIN32*/ |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API void pcap_close(pcap_t *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_loop(pcap_t *, int, pcap_handler, u_char *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_dispatch(pcap_t *, int, pcap_handler, u_char *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API const u_char *pcap_next(pcap_t *, struct pcap_pkthdr *); |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API int pcap_next_ex(pcap_t *, struct pcap_pkthdr **, const u_char **); |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API void pcap_breakloop(pcap_t *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_stats(pcap_t *, struct pcap_stat *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_setfilter(pcap_t *, struct bpf_program *); |
| |
| PCAP_AVAILABLE_0_9 |
| PCAP_API int pcap_setdirection(pcap_t *, pcap_direction_t); |
| |
| PCAP_AVAILABLE_0_7 |
| PCAP_API int pcap_getnonblock(pcap_t *, char *); |
| |
| PCAP_AVAILABLE_0_7 |
| PCAP_API int pcap_setnonblock(pcap_t *, int, char *); |
| |
| PCAP_AVAILABLE_0_9 |
| PCAP_API int pcap_inject(pcap_t *, const void *, size_t); |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API int pcap_sendpacket(pcap_t *, const u_char *, int); |
| |
| PCAP_AVAILABLE_1_0 |
| PCAP_API const char *pcap_statustostr(int); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API const char *pcap_strerror(int); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API char *pcap_geterr(pcap_t *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API void pcap_perror(pcap_t *, const char *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_compile(pcap_t *, struct bpf_program *, const char *, int, |
| bpf_u_int32); |
| |
| PCAP_AVAILABLE_0_5 |
| PCAP_API int pcap_compile_nopcap(int, int, struct bpf_program *, |
| const char *, int, bpf_u_int32); |
| |
| /* XXX - this took two arguments in 0.4 and 0.5 */ |
| PCAP_AVAILABLE_0_6 |
| PCAP_API void pcap_freecode(struct bpf_program *); |
| |
| PCAP_AVAILABLE_1_0 |
| PCAP_API int pcap_offline_filter(const struct bpf_program *, |
| const struct pcap_pkthdr *, const u_char *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_datalink(pcap_t *); |
| |
| PCAP_AVAILABLE_1_0 |
| PCAP_API int pcap_datalink_ext(pcap_t *); |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API int pcap_list_datalinks(pcap_t *, int **); |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API int pcap_set_datalink(pcap_t *, int); |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API void pcap_free_datalinks(int *); |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API int pcap_datalink_name_to_val(const char *); |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API const char *pcap_datalink_val_to_name(int); |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API const char *pcap_datalink_val_to_description(int); |
| |
| PCAP_AVAILABLE_1_10 |
| PCAP_API const char *pcap_datalink_val_to_description_or_dlt(int); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_snapshot(pcap_t *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_is_swapped(pcap_t *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_major_version(pcap_t *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_minor_version(pcap_t *); |
| |
| PCAP_AVAILABLE_1_9 |
| PCAP_API int pcap_bufsize(pcap_t *); |
| |
| /* XXX */ |
| PCAP_AVAILABLE_0_4 |
| PCAP_API FILE *pcap_file(pcap_t *); |
| |
| #ifdef _WIN32 |
| /* |
| * This probably shouldn't have been kept in WinPcap; most if not all |
| * UN*X code that used it won't work on Windows. We deprecate it; if |
| * anybody really needs access to whatever HANDLE may be associated |
| * with a pcap_t (there's no guarantee that there is one), we can add |
| * a Windows-only pcap_handle() API that returns the HANDLE. |
| */ |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_fileno(pcap_t *) |
| PCAP_DEPRECATED(pcap_fileno, "use 'pcap_handle'"); |
| #else /* _WIN32 */ |
| PCAP_AVAILABLE_0_4 |
| PCAP_API int pcap_fileno(pcap_t *); |
| #endif /* _WIN32 */ |
| |
| #ifdef _WIN32 |
| PCAP_API int pcap_wsockinit(void); |
| #endif |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API pcap_dumper_t *pcap_dump_open(pcap_t *, const char *); |
| |
| #ifdef _WIN32 |
| PCAP_AVAILABLE_0_9 |
| PCAP_API pcap_dumper_t *pcap_dump_hopen(pcap_t *, intptr_t); |
| |
| /* |
| * If we're building libpcap, this is an internal routine in sf-pcap.c, so |
| * we must not define it as a macro. |
| * |
| * If we're not building libpcap, given that the version of the C runtime |
| * with which libpcap was built might be different from the version |
| * of the C runtime with which an application using libpcap was built, |
| * and that a FILE structure may differ between the two versions of the |
| * C runtime, calls to _fileno() must use the version of _fileno() in |
| * the C runtime used to open the FILE *, not the version in the C |
| * runtime with which libpcap was built. (Maybe once the Universal CRT |
| * rules the world, this will cease to be a problem.) |
| */ |
| #ifndef BUILDING_PCAP |
| #define pcap_dump_fopen(p,f) \ |
| pcap_dump_hopen(p, _get_osfhandle(_fileno(f))) |
| #endif |
| #else /*_WIN32*/ |
| PCAP_AVAILABLE_0_9 |
| PCAP_API pcap_dumper_t *pcap_dump_fopen(pcap_t *, FILE *fp); |
| #endif /*_WIN32*/ |
| |
| PCAP_AVAILABLE_1_7 |
| PCAP_API pcap_dumper_t *pcap_dump_open_append(pcap_t *, const char *); |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API FILE *pcap_dump_file(pcap_dumper_t *); |
| |
| PCAP_AVAILABLE_0_9 |
| PCAP_API long pcap_dump_ftell(pcap_dumper_t *); |
| |
| PCAP_AVAILABLE_1_9 |
| PCAP_API int64_t pcap_dump_ftell64(pcap_dumper_t *); |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API int pcap_dump_flush(pcap_dumper_t *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API void pcap_dump_close(pcap_dumper_t *); |
| |
| PCAP_AVAILABLE_0_4 |
| PCAP_API void pcap_dump(u_char *, const struct pcap_pkthdr *, const u_char *); |
| |
| PCAP_AVAILABLE_0_7 |
| PCAP_API int pcap_findalldevs(pcap_if_t **, char *); |
| |
| PCAP_AVAILABLE_0_7 |
| PCAP_API void pcap_freealldevs(pcap_if_t *); |
| |
| /* |
| * We return a pointer to the version string, rather than exporting the |
| * version string directly. |
| * |
| * On at least some UNIXes, if you import data from a shared library into |
| * a program, the data is bound into the program binary, so if the string |
| * in the version of the library with which the program was linked isn't |
| * the same as the string in the version of the library with which the |
| * program is being run, various undesirable things may happen (warnings, |
| * the string being the one from the version of the library with which the |
| * program was linked, or even weirder things, such as the string being the |
| * one from the library but being truncated). |
| * |
| * On Windows, the string is constructed at run time. |
| */ |
| PCAP_AVAILABLE_0_8 |
| PCAP_API const char *pcap_lib_version(void); |
| |
| #if defined(_WIN32) |
| |
| /* |
| * Win32 definitions |
| */ |
| |
| /*! |
| \brief A queue of raw packets that will be sent to the network with pcap_sendqueue_transmit(). |
| */ |
| struct pcap_send_queue |
| { |
| u_int maxlen; /* Maximum size of the queue, in bytes. This |
| variable contains the size of the buffer field. */ |
| u_int len; /* Current size of the queue, in bytes. */ |
| char *buffer; /* Buffer containing the packets to be sent. */ |
| }; |
| |
| typedef struct pcap_send_queue pcap_send_queue; |
| |
| /*! |
| \brief This typedef is a support for the pcap_get_airpcap_handle() function |
| */ |
| #if !defined(AIRPCAP_HANDLE__EAE405F5_0171_9592_B3C2_C19EC426AD34__DEFINED_) |
| #define AIRPCAP_HANDLE__EAE405F5_0171_9592_B3C2_C19EC426AD34__DEFINED_ |
| typedef struct _AirpcapHandle *PAirpcapHandle; |
| #endif |
| |
| PCAP_API int pcap_setbuff(pcap_t *p, int dim); |
| PCAP_API int pcap_setmode(pcap_t *p, int mode); |
| PCAP_API int pcap_setmintocopy(pcap_t *p, int size); |
| |
| PCAP_API HANDLE pcap_getevent(pcap_t *p); |
| |
| PCAP_AVAILABLE_1_8 |
| PCAP_API int pcap_oid_get_request(pcap_t *, bpf_u_int32, void *, size_t *); |
| |
| PCAP_AVAILABLE_1_8 |
| PCAP_API int pcap_oid_set_request(pcap_t *, bpf_u_int32, const void *, size_t *); |
| |
| PCAP_API pcap_send_queue* pcap_sendqueue_alloc(u_int memsize); |
| |
| PCAP_API void pcap_sendqueue_destroy(pcap_send_queue* queue); |
| |
| PCAP_API int pcap_sendqueue_queue(pcap_send_queue* queue, const struct pcap_pkthdr *pkt_header, const u_char *pkt_data); |
| |
| PCAP_API u_int pcap_sendqueue_transmit(pcap_t *p, pcap_send_queue* queue, int sync); |
| |
| PCAP_API struct pcap_stat *pcap_stats_ex(pcap_t *p, int *pcap_stat_size); |
| |
| PCAP_API int pcap_setuserbuffer(pcap_t *p, int size); |
| |
| PCAP_API int pcap_live_dump(pcap_t *p, char *filename, int maxsize, int maxpacks); |
| |
| PCAP_API int pcap_live_dump_ended(pcap_t *p, int sync); |
| |
| PCAP_API int pcap_start_oem(char* err_str, int flags); |
| |
| PCAP_API PAirpcapHandle pcap_get_airpcap_handle(pcap_t *p); |
| |
| #define MODE_CAPT 0 |
| #define MODE_STAT 1 |
| #define MODE_MON 2 |
| |
| #elif defined(MSDOS) |
| |
| /* |
| * MS-DOS definitions |
| */ |
| |
| PCAP_API int pcap_stats_ex (pcap_t *, struct pcap_stat_ex *); |
| PCAP_API void pcap_set_wait (pcap_t *p, void (*yield)(void), int wait); |
| PCAP_API u_long pcap_mac_packets (void); |
| |
| #else /* UN*X */ |
| |
| /* |
| * UN*X definitions |
| */ |
| |
| PCAP_AVAILABLE_0_8 |
| PCAP_API int pcap_get_selectable_fd(pcap_t *); |
| |
| PCAP_AVAILABLE_1_9 |
| PCAP_API const struct timeval *pcap_get_required_select_timeout(pcap_t *); |
| |
| #endif /* _WIN32/MSDOS/UN*X */ |
| |
| /* |
| * Remote capture definitions. |
| * |
| * These routines are only present if libpcap has been configured to |
| * include remote capture support. |
| */ |
| |
| /* |
| * The maximum buffer size in which address, port, interface names are kept. |
| * |
| * In case the adapter name or such is larger than this value, it is truncated. |
| * This is not used by the user; however it must be aware that an hostname / interface |
| * name longer than this value will be truncated. |
| */ |
| #define PCAP_BUF_SIZE 1024 |
| |
| /* |
| * The type of input source, passed to pcap_open(). |
| */ |
| #define PCAP_SRC_FILE 2 /* local savefile */ |
| #define PCAP_SRC_IFLOCAL 3 /* local network interface */ |
| #define PCAP_SRC_IFREMOTE 4 /* interface on a remote host, using RPCAP */ |
| |
| /* |
| * The formats allowed by pcap_open() are the following: |
| * - file://path_and_filename [opens a local file] |
| * - rpcap://devicename [opens the selected device devices available on the local host, without using the RPCAP protocol] |
| * - rpcap://host/devicename [opens the selected device available on a remote host] |
| * - rpcap://host:port/devicename [opens the selected device available on a remote host, using a non-standard port for RPCAP] |
| * - adaptername [to open a local adapter; kept for compatibility, but it is strongly discouraged] |
| * - (NULL) [to open the first local adapter; kept for compatibility, but it is strongly discouraged] |
| * |
| * The formats allowed by the pcap_findalldevs_ex() are the following: |
| * - file://folder/ [lists all the files in the given folder] |
| * - rpcap:// [lists all local adapters] |
| * - rpcap://host:port/ [lists the devices available on a remote host] |
| * |
| * In all the above, "rpcaps://" can be substituted for "rpcap://" to enable |
| * SSL (if it has been compiled in). |
| * |
| * Referring to the 'host' and 'port' parameters, they can be either numeric or literal. Since |
| * IPv6 is fully supported, these are the allowed formats: |
| * |
| * - host (literal): e.g. host.foo.bar |
| * - host (numeric IPv4): e.g. 10.11.12.13 |
| * - host (numeric IPv4, IPv6 style): e.g. [10.11.12.13] |
| * - host (numeric IPv6): e.g. [1:2:3::4] |
| * - port: can be either numeric (e.g. '80') or literal (e.g. 'http') |
| * |
| * Here you find some allowed examples: |
| * - rpcap://host.foo.bar/devicename [everything literal, no port number] |
| * - rpcap://host.foo.bar:1234/devicename [everything literal, with port number] |
| * - rpcap://10.11.12.13/devicename [IPv4 numeric, no port number] |
| * - rpcap://10.11.12.13:1234/devicename [IPv4 numeric, with port number] |
| * - rpcap://[10.11.12.13]:1234/devicename [IPv4 numeric with IPv6 format, with port number] |
| * - rpcap://[1:2:3::4]/devicename [IPv6 numeric, no port number] |
| * - rpcap://[1:2:3::4]:1234/devicename [IPv6 numeric, with port number] |
| * - rpcap://[1:2:3::4]:http/devicename [IPv6 numeric, with literal port number] |
| */ |
| |
| /* |
| * URL schemes for capture source. |
| */ |
| /* |
| * This string indicates that the user wants to open a capture from a |
| * local file. |
| */ |
| #define PCAP_SRC_FILE_STRING "file://" |
| /* |
| * This string indicates that the user wants to open a capture from a |
| * network interface. This string does not necessarily involve the use |
| * of the RPCAP protocol. If the interface required resides on the local |
| * host, the RPCAP protocol is not involved and the local functions are used. |
| */ |
| #define PCAP_SRC_IF_STRING "rpcap://" |
| |
| /* |
| * Flags to pass to pcap_open(). |
| */ |
| |
| /* |
| * Specifies whether promiscuous mode is to be used. |
| */ |
| #define PCAP_OPENFLAG_PROMISCUOUS 0x00000001 |
| |
| /* |
| * Specifies, for an RPCAP capture, whether the data transfer (in |
| * case of a remote capture) has to be done with UDP protocol. |
| * |
| * If it is '1' if you want a UDP data connection, '0' if you want |
| * a TCP data connection; control connection is always TCP-based. |
| * A UDP connection is much lighter, but it does not guarantee that all |
| * the captured packets arrive to the client workstation. Moreover, |
| * it could be harmful in case of network congestion. |
| * This flag is meaningless if the source is not a remote interface. |
| * In that case, it is simply ignored. |
| */ |
| #define PCAP_OPENFLAG_DATATX_UDP 0x00000002 |
| |
| /* |
| * Specifies whether the remote probe will capture its own generated |
| * traffic. |
| * |
| * In case the remote probe uses the same interface to capture traffic |
| * and to send data back to the caller, the captured traffic includes |
| * the RPCAP traffic as well. If this flag is turned on, the RPCAP |
| * traffic is excluded from the capture, so that the trace returned |
| * back to the collector is does not include this traffic. |
| * |
| * Has no effect on local interfaces or savefiles. |
| */ |
| #define PCAP_OPENFLAG_NOCAPTURE_RPCAP 0x00000004 |
| |
| /* |
| * Specifies whether the local adapter will capture its own generated traffic. |
| * |
| * This flag tells the underlying capture driver to drop the packets |
| * that were sent by itself. This is useful when building applications |
| * such as bridges that should ignore the traffic they just sent. |
| * |
| * Supported only on Windows. |
| */ |
| #define PCAP_OPENFLAG_NOCAPTURE_LOCAL 0x00000008 |
| |
| /* |
| * This flag configures the adapter for maximum responsiveness. |
| * |
| * In presence of a large value for nbytes, WinPcap waits for the arrival |
| * of several packets before copying the data to the user. This guarantees |
| * a low number of system calls, i.e. lower processor usage, i.e. better |
| * performance, which is good for applications like sniffers. If the user |
| * sets the PCAP_OPENFLAG_MAX_RESPONSIVENESS flag, the capture driver will |
| * copy the packets as soon as the application is ready to receive them. |
| * This is suggested for real time applications (such as, for example, |
| * a bridge) that need the best responsiveness. |
| * |
| * The equivalent with pcap_create()/pcap_activate() is "immediate mode". |
| */ |
| #define PCAP_OPENFLAG_MAX_RESPONSIVENESS 0x00000010 |
| |
| /* |
| * Remote authentication methods. |
| * These are used in the 'type' member of the pcap_rmtauth structure. |
| */ |
| |
| /* |
| * NULL authentication. |
| * |
| * The 'NULL' authentication has to be equal to 'zero', so that old |
| * applications can just put every field of struct pcap_rmtauth to zero, |
| * and it does work. |
| */ |
| #define RPCAP_RMTAUTH_NULL 0 |
| /* |
| * Username/password authentication. |
| * |
| * With this type of authentication, the RPCAP protocol will use the username/ |
| * password provided to authenticate the user on the remote machine. If the |
| * authentication is successful (and the user has the right to open network |
| * devices) the RPCAP connection will continue; otherwise it will be dropped. |
| * |
| * *******NOTE********: the username and password are sent over the network |
| * to the capture server *IN CLEAR TEXT*. Don't use this on a network |
| * that you don't completely control! (And be *really* careful in your |
| * definition of "completely"!) |
| */ |
| #define RPCAP_RMTAUTH_PWD 1 |
| |
| /* |
| * This structure keeps the information needed to authenticate the user |
| * on a remote machine. |
| * |
| * The remote machine can either grant or refuse the access according |
| * to the information provided. |
| * In case the NULL authentication is required, both 'username' and |
| * 'password' can be NULL pointers. |
| * |
| * This structure is meaningless if the source is not a remote interface; |
| * in that case, the functions which requires such a structure can accept |
| * a NULL pointer as well. |
| */ |
| struct pcap_rmtauth |
| { |
| /* |
| * \brief Type of the authentication required. |
| * |
| * In order to provide maximum flexibility, we can support different types |
| * of authentication based on the value of this 'type' variable. The currently |
| * supported authentication methods are defined into the |
| * \link remote_auth_methods Remote Authentication Methods Section\endlink. |
| */ |
| int type; |
| /* |
| * \brief Zero-terminated string containing the username that has to be |
| * used on the remote machine for authentication. |
| * |
| * This field is meaningless in case of the RPCAP_RMTAUTH_NULL authentication |
| * and it can be NULL. |
| */ |
| char *username; |
| /* |
| * \brief Zero-terminated string containing the password that has to be |
| * used on the remote machine for authentication. |
| * |
| * This field is meaningless in case of the RPCAP_RMTAUTH_NULL authentication |
| * and it can be NULL. |
| */ |
| char *password; |
| }; |
| |
| /* |
| * This routine can open a savefile, a local device, or a device on |
| * a remote machine running an RPCAP server. |
| * |
| * For opening a savefile, the pcap_open_offline routines can be used, |
| * and will work just as well; code using them will work on more |
| * platforms than code using pcap_open() to open savefiles. |
| * |
| * For opening a local device, pcap_open_live() can be used; it supports |
| * most of the capabilities that pcap_open() supports, and code using it |
| * will work on more platforms than code using pcap_open(). pcap_create() |
| * and pcap_activate() can also be used; they support all capabilities |
| * that pcap_open() supports, except for the Windows-only |
| * PCAP_OPENFLAG_NOCAPTURE_LOCAL, and support additional capabilities. |
| * |
| * For opening a remote capture, pcap_open() is currently the only |
| * API available. |
| */ |
| PCAP_AVAILABLE_1_9 |
| PCAP_API pcap_t *pcap_open(const char *source, int snaplen, int flags, |
| int read_timeout, struct pcap_rmtauth *auth, char *errbuf); |
| |
| PCAP_AVAILABLE_1_9 |
| PCAP_API int pcap_createsrcstr(char *source, int type, const char *host, |
| const char *port, const char *name, char *errbuf); |
| |
| PCAP_AVAILABLE_1_9 |
| PCAP_API int pcap_parsesrcstr(const char *source, int *type, char *host, |
| char *port, char *name, char *errbuf); |
| |
| /* |
| * This routine can scan a directory for savefiles, list local capture |
| * devices, or list capture devices on a remote machine running an RPCAP |
| * server. |
| * |
| * For scanning for savefiles, it can be used on both UN*X systems and |
| * Windows systems; for each directory entry it sees, it tries to open |
| * the file as a savefile using pcap_open_offline(), and only includes |
| * it in the list of files if the open succeeds, so it filters out |
| * files for which the user doesn't have read permission, as well as |
| * files that aren't valid savefiles readable by libpcap. |
| * |
| * For listing local capture devices, it's just a wrapper around |
| * pcap_findalldevs(); code using pcap_findalldevs() will work on more |
| * platforms than code using pcap_findalldevs_ex(). |
| * |
| * For listing remote capture devices, pcap_findalldevs_ex() is currently |
| * the only API available. |
| */ |
| PCAP_AVAILABLE_1_9 |
| PCAP_API int pcap_findalldevs_ex(const char *source, |
| struct pcap_rmtauth *auth, pcap_if_t **alldevs, char *errbuf); |
| |
| /* |
| * Sampling methods. |
| * |
| * These allow pcap_loop(), pcap_dispatch(), pcap_next(), and pcap_next_ex() |
| * to see only a sample of packets, rather than all packets. |
| * |
| * Currently, they work only on Windows local captures. |
| */ |
| |
| /* |
| * Specifies that no sampling is to be done on the current capture. |
| * |
| * In this case, no sampling algorithms are applied to the current capture. |
| */ |
| #define PCAP_SAMP_NOSAMP 0 |
| |
| /* |
| * Specifies that only 1 out of N packets must be returned to the user. |
| * |
| * In this case, the 'value' field of the 'pcap_samp' structure indicates the |
| * number of packets (minus 1) that must be discarded before one packet got |
| * accepted. |
| * In other words, if 'value = 10', the first packet is returned to the |
| * caller, while the following 9 are discarded. |
| */ |
| #define PCAP_SAMP_1_EVERY_N 1 |
| |
| /* |
| * Specifies that we have to return 1 packet every N milliseconds. |
| * |
| * In this case, the 'value' field of the 'pcap_samp' structure indicates |
| * the 'waiting time' in milliseconds before one packet got accepted. |
| * In other words, if 'value = 10', the first packet is returned to the |
| * caller; the next returned one will be the first packet that arrives |
| * when 10ms have elapsed. |
| */ |
| #define PCAP_SAMP_FIRST_AFTER_N_MS 2 |
| |
| /* |
| * This structure defines the information related to sampling. |
| * |
| * In case the sampling is requested, the capturing device should read |
| * only a subset of the packets coming from the source. The returned packets |
| * depend on the sampling parameters. |
| * |
| * WARNING: The sampling process is applied *after* the filtering process. |
| * In other words, packets are filtered first, then the sampling process |
| * selects a subset of the 'filtered' packets and it returns them to the |
| * caller. |
| */ |
| struct pcap_samp |
| { |
| /* |
| * Method used for sampling; see above. |
| */ |
| int method; |
| |
| /* |
| * This value depends on the sampling method defined. |
| * For its meaning, see above. |
| */ |
| int value; |
| }; |
| |
| /* |
| * New functions. |
| */ |
| PCAP_AVAILABLE_1_9 |
| PCAP_API struct pcap_samp *pcap_setsampling(pcap_t *p); |
| |
| /* |
| * RPCAP active mode. |
| */ |
| |
| /* Maximum length of an host name (needed for the RPCAP active mode) */ |
| #define RPCAP_HOSTLIST_SIZE 1024 |
| |
| PCAP_AVAILABLE_1_9 |
| PCAP_API SOCKET pcap_remoteact_accept(const char *address, const char *port, |
| const char *hostlist, char *connectinghost, |
| struct pcap_rmtauth *auth, char *errbuf); |
| |
| PCAP_AVAILABLE_1_10 |
| PCAP_API SOCKET pcap_remoteact_accept_ex(const char *address, const char *port, |
| const char *hostlist, char *connectinghost, |
| struct pcap_rmtauth *auth, int uses_ssl, char *errbuf); |
| |
| PCAP_AVAILABLE_1_9 |
| PCAP_API int pcap_remoteact_list(char *hostlist, char sep, int size, |
| char *errbuf); |
| |
| PCAP_AVAILABLE_1_9 |
| PCAP_API int pcap_remoteact_close(const char *host, char *errbuf); |
| |
| PCAP_AVAILABLE_1_9 |
| PCAP_API void pcap_remoteact_cleanup(void); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* lib_pcap_pcap_h */ |