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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 07:42:04 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 07:42:04 +0000
commit0d47952611198ef6b1163f366dc03922d20b1475 (patch)
tree3d840a3b8c0daef0754707bfb9f5e873b6b1ac13 /nping/utils_net.h
parentInitial commit. (diff)
downloadnmap-0d47952611198ef6b1163f366dc03922d20b1475.tar.xz
nmap-0d47952611198ef6b1163f366dc03922d20b1475.zip
Adding upstream version 7.94+git20230807.3be01efb1+dfsg.upstream/7.94+git20230807.3be01efb1+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+
+/***************************************************************************
+ * utils_net.cc -- Miscellaneous network-related functions that perform *
+ * various tasks. *
+ * *
+ ***********************IMPORTANT NMAP LICENSE TERMS************************
+ *
+ * The Nmap Security Scanner is (C) 1996-2023 Nmap Software LLC ("The Nmap
+ * Project"). Nmap is also a registered trademark of the Nmap Project.
+ *
+ * This program is distributed under the terms of the Nmap Public Source
+ * License (NPSL). The exact license text applying to a particular Nmap
+ * release or source code control revision is contained in the LICENSE
+ * file distributed with that version of Nmap or source code control
+ * revision. More Nmap copyright/legal information is available from
+ * https://nmap.org/book/man-legal.html, and further information on the
+ * NPSL license itself can be found at https://nmap.org/npsl/ . This
+ * header summarizes some key points from the Nmap license, but is no
+ * substitute for the actual license text.
+ *
+ * Nmap is generally free for end users to download and use themselves,
+ * including commercial use. It is available from https://nmap.org.
+ *
+ * The Nmap license generally prohibits companies from using and
+ * redistributing Nmap in commercial products, but we sell a special Nmap
+ * OEM Edition with a more permissive license and special features for
+ * this purpose. See https://nmap.org/oem/
+ *
+ * If you have received a written Nmap license agreement or contract
+ * stating terms other than these (such as an Nmap OEM license), you may
+ * choose to use and redistribute Nmap under those terms instead.
+ *
+ * The official Nmap Windows builds include the Npcap software
+ * (https://npcap.com) for packet capture and transmission. It is under
+ * separate license terms which forbid redistribution without special
+ * permission. So the official Nmap Windows builds may not be redistributed
+ * without special permission (such as an Nmap OEM license).
+ *
+ * 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.
+ *
+ * Source code also allows you to port Nmap to new platforms, fix bugs, and add
+ * new features. You are highly encouraged to submit your changes as a Github PR
+ * or by email to the dev@nmap.org mailing list for possible incorporation into
+ * the main distribution. Unless you specify otherwise, it is understood that
+ * you are offering us very broad rights to use your submissions as described in
+ * the Nmap Public Source License Contributor Agreement. This is important
+ * because we fund the project by selling licenses with various terms, and also
+ * because the inability to relicense code has caused devastating problems for
+ * other Free Software projects (such as KDE and NASM).
+ *
+ * The free version of Nmap 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. Warranties,
+ * indemnification and commercial support are all available through the
+ * Npcap OEM program--see https://nmap.org/oem/
+ *
+ ***************************************************************************/
+
+#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 <netinet/in_systm.h> /* 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 <netinet/ip.h>
+#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);
+int setsockaddrfamily(struct sockaddr_storage *ss, int family);
+int setsockaddrany(struct sockaddr_storage *ss);
+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);
+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 */