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Diffstat (limited to 'nping/EchoServer.h')
| -rw-r--r-- | nping/EchoServer.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/nping/EchoServer.h b/nping/EchoServer.h new file mode 100644 index 0000000..c31771e --- /dev/null +++ b/nping/EchoServer.h @@ -0,0 +1,131 @@ + +/*************************************************************************** + * EchoServer.h -- * + * * + ***********************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/ + * + ***************************************************************************/ +#ifndef __ECHOSERVER_H__ +#define __ECHOSERVER_H__ 1 + + + +#include "nping.h" +#include "nsock.h" +#include <vector> +#include "NEPContext.h" + +#define LISTEN_QUEUE_SIZE 10 + +class EchoServer { + + private: + /* Attributes */ + std::vector<NEPContext> client_ctx; + clientid_t client_id_count; + + /* Methods */ + int nep_listen_socket(); + int addClientContext(NEPContext ctx); + NEPContext *getClientContext(clientid_t clnt); + NEPContext *getClientContext(nsock_iod iod); + int destroyClientContext(clientid_t clnt); + nsock_iod getClientNsockIOD(clientid_t clnt); + clientid_t getNewClientID(); + clientid_t nep_match_packet(const u8 *pkt, size_t pktlen); + clientid_t nep_match_headers(IPv4Header *ip4, IPv6Header *ip6, TCPHeader *tcp, UDPHeader *udp, ICMPv4Header *icmp4, RawData *payload); + int parse_hs_client(u8 *pkt, size_t pktlen, NEPContext *ctx); + int parse_packet_spec(u8 *pkt, size_t pktlen, NEPContext *ctx); + + int generate_hs_server(EchoHeader *h, NEPContext *ctx); + int generate_hs_final(EchoHeader *h, NEPContext *ctx); + int generate_ready(EchoHeader *h, NEPContext *ctx); + int generate_echo(EchoHeader *h, const u8 *pkt, size_t pktlen, NEPContext *ctx); + + public: + + EchoServer(); + ~EchoServer(); + void reset(); + int start(); + int cleanup(); + + int nep_capture_handler(nsock_pool nsp, nsock_event nse, void *param); + int nep_echo_handler(nsock_pool nsp, nsock_event nse, void *param); + int nep_hs_server_handler(nsock_pool nsp, nsock_event nse, void *param); + int nep_hs_client_handler(nsock_pool nsp, nsock_event nse, void *param); + int nep_hs_final_handler(nsock_pool nsp, nsock_event nse, void *param); + int nep_packetspec_handler(nsock_pool nsp, nsock_event nse, void *param); + int nep_ready_handler(nsock_pool nsp, nsock_event nse, void *param); + int nep_session_ended_handler(nsock_pool nsp, nsock_event nse, void *param); + +}; /* End of class EchoServer */ + +typedef struct handler_arg{ + EchoServer *me; + void *param; +} handler_arg_t; + +/* Handler wrappers */ +void capture_handler(nsock_pool nsp, nsock_event nse, void *arg); +void echo_handler(nsock_pool nsp, nsock_event nse, void *arg); +void hs_server_handler(nsock_pool nsp, nsock_event nse, void *arg); +void hs_client_handler(nsock_pool nsp, nsock_event nse, void *arg); +void hs_final_handler(nsock_pool nsp, nsock_event nse, void *arg); +void packetspec_handler(nsock_pool nsp, nsock_event nse, void *arg); +void ready_handler(nsock_pool nsp, nsock_event nse, void *arg); +void empty_handler(nsock_pool nsp, nsock_event nse, void *arg); +void session_ended_handler(nsock_pool nsp, nsock_event nse, void *arg); + +#endif /* __ECHOSERVER_H__ */ |