1 /**************************************************************************/ 2 /* */ 3 /* Copyright (c) Microsoft Corporation. All rights reserved. */ 4 /* */ 5 /* This software is licensed under the Microsoft Software License */ 6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */ 7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ 8 /* and in the root directory of this software. */ 9 /* */ 10 /**************************************************************************/ 11 12 13 /**************************************************************************/ 14 /**************************************************************************/ 15 /** */ 16 /** NetX Component */ 17 /** */ 18 /** Transmission Control Protocol (TCP) */ 19 /** */ 20 /**************************************************************************/ 21 /**************************************************************************/ 22 23 #define NX_SOURCE_CODE 24 25 26 /* Include necessary system files. */ 27 28 #include "nx_api.h" 29 #include "nx_tcp.h" 30 31 /* Bring in externs for caller checking code. */ 32 NX_CALLER_CHECKING_EXTERNS 33 34 /**************************************************************************/ 35 /* */ 36 /* FUNCTION RELEASE */ 37 /* */ 38 /* _nxe_tcp_socket_peer_info_get PORTABLE C */ 39 /* 6.1 */ 40 /* AUTHOR */ 41 /* */ 42 /* Yuxin Zhou, Microsoft Corporation */ 43 /* */ 44 /* DESCRIPTION */ 45 /* */ 46 /* This function retrieves IP address and port number of the peer */ 47 /* connected to the specified TCP socket. */ 48 /* */ 49 /* INPUT */ 50 /* */ 51 /* socket_ptr Pointer to the TCP sockete */ 52 /* peer_ip_address Pointer to the IP address */ 53 /* of the peer. */ 54 /* peer_port Pointer to the port number */ 55 /* of the peer. */ 56 /* */ 57 /* OUTPUT */ 58 /* */ 59 /* status Completion status */ 60 /* */ 61 /* CALLS */ 62 /* */ 63 /* _nx_tcp_socket_peer_info_get Actual TCP socket peer info */ 64 /* get function */ 65 /* CALLED BY */ 66 /* */ 67 /* Application Code */ 68 /* */ 69 /* RELEASE HISTORY */ 70 /* */ 71 /* DATE NAME DESCRIPTION */ 72 /* */ 73 /* 05-19-2020 Yuxin Zhou Initial Version 6.0 */ 74 /* 09-30-2020 Yuxin Zhou Modified comment(s), */ 75 /* resulting in version 6.1 */ 76 /* */ 77 /**************************************************************************/ _nxe_tcp_socket_peer_info_get(NX_TCP_SOCKET * socket_ptr,ULONG * peer_ip_address,ULONG * peer_port)78UINT _nxe_tcp_socket_peer_info_get(NX_TCP_SOCKET *socket_ptr, 79 ULONG *peer_ip_address, 80 ULONG *peer_port) 81 { 82 #ifndef NX_DISABLE_IPV4 83 UINT status; 84 85 86 /* Check for invalid input pointers. */ 87 if ((socket_ptr == NX_NULL) || (socket_ptr -> nx_tcp_socket_id != NX_TCP_ID)) 88 { 89 return(NX_PTR_ERROR); 90 } 91 92 if ((peer_ip_address == NX_NULL) || (peer_port == NX_NULL)) 93 { 94 return(NX_PTR_ERROR); 95 } 96 97 /* Check to see if TCP is enabled. */ 98 if (!(socket_ptr -> nx_tcp_socket_ip_ptr) -> nx_ip_tcp_packet_receive) 99 { 100 return(NX_NOT_ENABLED); 101 } 102 103 /* Check for appropriate caller. */ 104 NX_THREADS_ONLY_CALLER_CHECKING 105 106 /* Call actual TCP socket MSS get function. */ 107 status = _nx_tcp_socket_peer_info_get(socket_ptr, peer_ip_address, peer_port); 108 109 /* Return completion status. */ 110 return(status); 111 #else 112 NX_PARAMETER_NOT_USED(socket_ptr); 113 NX_PARAMETER_NOT_USED(peer_ip_address); 114 NX_PARAMETER_NOT_USED(peer_port); 115 116 return(NX_NOT_SUPPORTED); 117 #endif /* NX_DISABLE_IPV4 */ 118 } 119 120
