/*************************************************************************** * utils_net.cc -- Miscellanious network-related functions that perform * * various tasks. * * * ***********************IMPORTANT NMAP LICENSE TERMS************************ * * * The Nmap Security Scanner is (C) 1996-2012 Insecure.Com LLC. Nmap is * * also a registered trademark of Insecure.Com LLC. This program is free * * software; you may redistribute and/or modify it under the terms of the * * GNU General Public License as published by the Free Software * * Foundation; Version 2 with the clarifications and exceptions described * * below. This guarantees your right to use, modify, and redistribute * * this software under certain conditions. If you wish to embed Nmap * * technology into proprietary software, we sell alternative licenses * * (contact sales@insecure.com). Dozens of software vendors already * * license Nmap technology such as host discovery, port scanning, OS * * detection, version detection, and the Nmap Scripting Engine. * * * * Note that the GPL places important restrictions on "derived works", yet * * it does not provide a detailed definition of that term. To avoid * * misunderstandings, we interpret that term as broadly as copyright law * * allows. For example, we consider an application to constitute a * * "derivative work" for the purpose of this license if it does any of the * * following: * * o Integrates source code from Nmap * * o Reads or includes Nmap copyrighted data files, such as * * nmap-os-db or nmap-service-probes. * * o Executes Nmap and parses the results (as opposed to typical shell or * * execution-menu apps, which simply display raw Nmap output and so are * * not derivative works.) * * o Integrates/includes/aggregates Nmap into a proprietary executable * * installer, such as those produced by InstallShield. * * o Links to a library or executes a program that does any of the above * * * * The term "Nmap" should be taken to also include any portions or derived * * works of Nmap, as well as other software we distribute under this * * license such as Zenmap, Ncat, and Nping. This list is not exclusive, * * but is meant to clarify our interpretation of derived works with some * * common examples. Our interpretation applies only to Nmap--we don't * * speak for other people's GPL works. * * * * If you have any questions about the GPL licensing restrictions on using * * Nmap in non-GPL works, we would be happy to help. As mentioned above, * * we also offer alternative license to integrate Nmap into proprietary * * applications and appliances. These contracts have been sold to dozens * * of software vendors, and generally include a perpetual license as well * * as providing for priority support and updates. They also fund the * * continued development of Nmap. Please email sales@insecure.com for * * further information. * * * * As a special exception to the GPL terms, Insecure.Com LLC grants * * permission to link the code of this program with any version of the * * OpenSSL library which is distributed under a license identical to that * * listed in the included docs/licenses/OpenSSL.txt file, and distribute * * linked combinations including the two. You must obey the GNU GPL in all * * respects for all of the code used other than OpenSSL. If you modify * * this file, you may extend this exception to your version of the file, * * but you are not obligated to do so. * * * * If you received these files with a written license agreement or * * contract stating terms other than the terms above, then that * * alternative license agreement takes precedence over these comments. * * * * Source is provided to this software because we believe users have a * * right to know exactly what a program is going to do before they run it. * * This also allows you to audit the software for security holes (none * * have been found so far). * * * * Source code also allows you to port Nmap to new platforms, fix bugs, * * and add new features. You are highly encouraged to send your changes * * to nmap-dev@insecure.org for possible incorporation into the main * * distribution. By sending these changes to Fyodor or one of the * * Insecure.Org development mailing lists, or checking them into the Nmap * * source code repository, it is understood (unless you specify otherwise) * * that you are offering the Nmap Project (Insecure.Com LLC) the * * unlimited, non-exclusive right to reuse, modify, and relicense the * * code. Nmap will always be available Open Source, but this is important * * because the inability to relicense code has caused devastating problems * * for other Free Software projects (such as KDE and NASM). We also * * occasionally relicense the code to third parties as discussed above. * * If you wish to specify special license conditions of your * * contributions, just say so when you send them. * * * * This program is distributed in the hope that it will be useful, but * * WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * * General Public License v2.0 for more details at * * http://www.gnu.org/licenses/gpl-2.0.html , or in the COPYING file * * included with Nmap. * * * ***************************************************************************/ #include "NpingTarget.h" #ifndef UTILS_NET_H #define UTILS_NET_H 1 #ifndef NETINET_IN_SYSTM_H /* This guarding is needed for at least some versions of OpenBSD */ #include /* defines n_long needed for netinet/ip.h */ #define NETINET_IN_SYSTM_H #endif #ifndef NETINET_IP_H /* This guarding is needed for at least some versions of OpenBSD */ #include #define NETINET_IP_H #endif int atoIP(const char *hostname, struct in_addr *dst); int atoIP(const char *hostname, struct sockaddr_storage *ss, int family); char *IPtoa(u32 i); char *IPtoa(struct sockaddr_storage *ss); char *IPtoa(struct in_addr addr); char *IPtoa(struct in6_addr addr); char *IPtoa(struct sockaddr_storage ss); char *IPtoa(struct sockaddr_storage *ss, int family); char *IPtoa(u8 *ipv6addr); u16 sockaddr2port(struct sockaddr_storage *ss); u16 sockaddr2port(struct sockaddr_storage ss); u16 sockaddr2port(struct sockaddr_in *s4); u16 sockaddr2port(struct sockaddr_in6 *s6); bool isICMPType(u8 type); bool isICMPCode(u8 code); bool isICMPCode(u8 code, u8 type); int getPacketStrInfo(const char *proto, const u8 *packet, u32 len, u8 *dstbuff, u32 dstlen, struct sockaddr_storage *ss_src, struct sockaddr_storage *ss_dst); int getPacketStrInfo(const char *proto, const u8 *packet, u32 len, u8 *dstbuff, u32 dstlen); int getNetworkInterfaceName(u32 destination, char *dev); int getNetworkInterfaceName(struct sockaddr_storage *dst, char *dev); int nping_getpts_simple(const char *origexpr, u16 **list, int *count); int resolveCached(char *host, struct sockaddr_storage *ss, size_t *sslen,int pf) ; struct hostent *gethostbynameCached(char *host); struct hostent *hostentcpy(struct hostent *src); int hostentfree(struct hostent *src); int parseMAC(const char *txt, u8 *targetbuff); char *MACtoa(u8 *mac); const char *arppackethdrinfo(const u8 *packet, u32 len, int detail ); int arppackethdrinfo(const u8 *packet, u32 len, u8 *dstbuff, u32 dstlen); int tcppackethdrinfo(const u8 *packet, size_t len, u8 *dstbuff, size_t dstlen, int detail, struct sockaddr_storage *src, struct sockaddr_storage *dst); int udppackethdrinfo(const u8 *packet, size_t len, u8 *dstbuff, size_t dstlen, int detail, struct sockaddr_storage *src, struct sockaddr_storage *dst); const char *getRandomTextPayload(); int send_packet(NpingTarget *target, int rawfd, u8 *pkt, size_t pktLen); int print_dnet_interface(const struct intf_entry *entry, void *arg) ; int print_interfaces_dnet(); struct sockaddr_storage *getSrcSockAddrFromIPPacket(u8 *pkt, size_t pktLen); struct sockaddr_storage *getDestAddrFromICMPPacket(u8 *pkt, size_t pktLen); u8 *getUDPheaderLocation(u8 *pkt, size_t pktLen); u8 *getTCPheaderLocation(u8 *pkt, size_t pktLen); u8 getProtoFromIPPacket(u8 *pkt, size_t pktLen); u16 *getSrcPortFromIPPacket(u8 *pkt, size_t pktLen); u16 *getDstPortFromIPPacket(u8 *pkt, size_t pktLen); u16 *getDstPortFromTCPHeader(u8 *pkt, size_t pktLen); u16 *getDstPortFromUDPHeader(u8 *pkt, size_t pktLen); int obtainRawSocket(); #define DEVNAMELEN 16 #define PATH_PROC_IFINET6 "/proc/net/if_inet6" typedef struct ipv6_interface{ char devname[DEVNAMELEN]; /* Interface name */ struct sockaddr_storage ss; /* Address as a sockaddr_storage var */ u8 addr[16]; /* Address as a 128bit array */ u16 netmask_bits; /* Prefix length */ u8 dev_no; /* Netlink device number */ u8 scope; /* Scope */ u8 flags; /* Interface flags */ u8 mac[6]; /* MAC addr. (I wish we could get it)*/ }if6_t; int getinterfaces_inet6_linux(if6_t *ifbuf, int max_ifaces); #define PATH_PROC_IPV6ROUTE "/proc/net/ipv6_route" typedef struct sys_route6 { struct in6_addr dst_net; /* Destination Network */ u8 dst_prefix; /* Destination Prefix Length */ struct in6_addr src_net; /* Source Network */ u8 src_prefix; /* Source Prefix Length */ struct in6_addr next_hop; /* Gateway - 0 if none */ u32 metric; /* Metric */ u32 ref_count; /* Reference Counter */ u32 use_count; /* Use Counter */ u32 flags; /* Flags */ char devname[DEVNAMELEN]; /* Device name */ }route6_t; int getroutes_inet6_linux(route6_t *rtbuf, int max_routes); route6_t *route_dst_ipv6_linux(const struct sockaddr_storage *const dst); #endif /* UTILS_NET_H */