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| 1 | 6 | kaklik | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> |
| 2 | <html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> |
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| 3 | <title>Procyon AVRlib: net/net.c Source File</title> |
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| 4 | <link href="dox.css" rel="stylesheet" type="text/css"> |
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| 5 | </head><body> |
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| 6 | <!-- Generated by Doxygen 1.4.2 --> |
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| 7 | <div class="qindex"><a class="qindex" href="main.html">Main Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="annotated.html">Data Structures</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Data Fields</a> | <a class="qindex" href="globals.html">Globals</a> | <a class="qindex" href="pages.html">Related Pages</a></div> |
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| 8 | <div class="nav"> |
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| 9 | <a class="el" href="dir_000001.html">net</a></div> |
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| 10 | <h1>net.c</h1><a href="net_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/*! \file net.c \brief Network support library. */</span> |
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| 11 | 00002 <span class="comment">//*****************************************************************************</span> |
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| 12 | 00003 <span class="comment">//</span> |
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| 13 | 00004 <span class="comment">// File Name : 'net.c'</span> |
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| 14 | 00005 <span class="comment">// Title : Network support library</span> |
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| 15 | 00006 <span class="comment">// Author : Pascal Stang</span> |
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| 16 | 00007 <span class="comment">// Created : 8/30/2004</span> |
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| 17 | 00008 <span class="comment">// Revised : 7/3/2005</span> |
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| 18 | 00009 <span class="comment">// Version : 0.1</span> |
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| 19 | 00010 <span class="comment">// Target MCU : Atmel AVR series</span> |
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| 20 | 00011 <span class="comment">// Editor Tabs : 4</span> |
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| 21 | 00012 <span class="comment">//</span> |
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| 22 | 00013 <span class="comment">//*****************************************************************************</span> |
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| 23 | 00014 |
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| 24 | 00015 <span class="preprocessor">#include <inttypes.h></span> |
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| 25 | 00016 <span class="preprocessor">#include "<a class="code" href="global_8h.html">global.h</a>"</span> |
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| 26 | 00017 <span class="preprocessor">#include "<a class="code" href="rprintf_8h.html">rprintf.h</a>"</span> |
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| 27 | 00018 |
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| 28 | 00019 <span class="preprocessor">#include "<a class="code" href="net_8h.html">net.h</a>"</span> |
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| 29 | 00020 |
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| 30 | <a name="l00021"></a><a class="code" href="group__net.html#ga2">00021</a> uint16_t <a class="code" href="group__net.html#ga2">htons</a>(uint16_t val) |
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| 31 | 00022 { |
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| 32 | 00023 <span class="keywordflow">return</span> (val<<8) | (val>>8); |
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| 33 | 00024 } |
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| 34 | 00025 |
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| 35 | <a name="l00026"></a><a class="code" href="group__net.html#ga3">00026</a> uint32_t <a class="code" href="group__net.html#ga3">htonl</a>(uint32_t val) |
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| 36 | 00027 { |
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| 37 | 00028 <span class="keywordflow">return</span> (<a class="code" href="group__net.html#ga2">htons</a>(val>>16) | (uint32_t)<a class="code" href="group__net.html#ga2">htons</a>(val&0x0000FFFF)<<16); |
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| 38 | 00029 } |
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| 39 | 00030 |
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| 40 | 00031 |
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| 41 | <a name="l00032"></a><a class="code" href="group__net.html#ga4">00032</a> uint16_t <a class="code" href="group__net.html#ga4">netChecksum</a>(<span class="keywordtype">void</span> *data, uint16_t len) |
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| 42 | 00033 { |
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| 43 | 00034 <span class="keyword">register</span> uint32_t sum = 0; |
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| 44 | 00035 |
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| 45 | 00036 <span class="keywordflow">for</span> (;;) { |
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| 46 | 00037 <span class="keywordflow">if</span> (len < 2) |
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| 47 | 00038 <span class="keywordflow">break</span>; |
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| 48 | 00039 <span class="comment">//sum += *((uint16_t *)data)++;</span> |
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| 49 | 00040 sum += *((uint16_t *)data); |
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| 50 | 00041 data+=2; |
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| 51 | 00042 len -= 2; |
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| 52 | 00043 } |
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| 53 | 00044 <span class="keywordflow">if</span> (len) |
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| 54 | 00045 sum += *(uint8_t *) data; |
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| 55 | 00046 |
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| 56 | 00047 <span class="keywordflow">while</span> ((len = (uint16_t) (sum >> 16)) != 0) |
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| 57 | 00048 sum = (uint16_t) sum + len; |
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| 58 | 00049 |
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| 59 | 00050 <span class="keywordflow">return</span> (uint16_t) sum ^ 0xFFFF; |
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| 60 | 00051 } |
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| 61 | 00052 |
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| 62 | <a name="l00053"></a><a class="code" href="group__net.html#ga5">00053</a> <span class="keywordtype">void</span> <a class="code" href="group__net.html#ga5">netPrintEthAddr</a>(<span class="keyword">struct</span> netEthAddr* ethaddr) |
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| 63 | 00054 { |
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| 64 | 00055 <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ethaddr->addr[0]); |
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| 65 | 00056 <a class="code" href="group__rprintf.html#ga1">rprintfChar</a>(<span class="charliteral">':'</span>); |
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| 66 | 00057 <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ethaddr->addr[1]); |
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| 67 | 00058 <a class="code" href="group__rprintf.html#ga1">rprintfChar</a>(<span class="charliteral">':'</span>); |
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| 68 | 00059 <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ethaddr->addr[2]); |
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| 69 | 00060 <a class="code" href="group__rprintf.html#ga1">rprintfChar</a>(<span class="charliteral">':'</span>); |
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| 70 | 00061 <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ethaddr->addr[3]); |
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| 71 | 00062 <a class="code" href="group__rprintf.html#ga1">rprintfChar</a>(<span class="charliteral">':'</span>); |
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| 72 | 00063 <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ethaddr->addr[4]); |
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| 73 | 00064 <a class="code" href="group__rprintf.html#ga1">rprintfChar</a>(<span class="charliteral">':'</span>); |
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| 74 | 00065 <a class="code" href="group__rprintf.html#ga7">rprintfu08</a>(ethaddr->addr[5]); |
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| 75 | 00066 } |
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| 76 | 00067 |
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| 77 | <a name="l00068"></a><a class="code" href="group__net.html#ga6">00068</a> <span class="keywordtype">void</span> <a class="code" href="group__net.html#ga6">netPrintIPAddr</a>(uint32_t ipaddr) |
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| 78 | 00069 { |
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| 79 | 00070 rprintf(<span class="stringliteral">"%d.%d.%d.%d"</span>, |
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| 80 | 00071 ((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&ipaddr)[3], |
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| 81 | 00072 ((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&ipaddr)[2], |
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| 82 | 00073 ((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&ipaddr)[1], |
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| 83 | 00074 ((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)&ipaddr)[0]); |
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| 84 | 00075 } |
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| 85 | 00076 |
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| 86 | 00077 <span class="comment">/*</span> |
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| 87 | 00078 <span class="comment">void netPrintEthHeader(struct netEthHeader* eth_hdr)</span> |
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| 88 | 00079 <span class="comment">{</span> |
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| 89 | 00080 <span class="comment"> rprintfProgStrM("Eth Packet Type: 0x");</span> |
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| 90 | 00081 <span class="comment"> rprintfu16(eth_hdr->type);</span> |
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| 91 | 00082 <span class="comment"></span> |
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| 92 | 00083 <span class="comment"> rprintfProgStrM(" SRC:");</span> |
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| 93 | 00084 <span class="comment"> netPrintEthAddr(&eth_hdr->src);</span> |
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| 94 | 00085 <span class="comment"> rprintfProgStrM("->DST:");</span> |
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| 95 | 00086 <span class="comment"> netPrintEthAddr(&eth_hdr->dest);</span> |
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| 96 | 00087 <span class="comment"> rprintfCRLF();</span> |
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| 97 | 00088 <span class="comment">}</span> |
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| 98 | 00089 <span class="comment"></span> |
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| 99 | 00090 <span class="comment">void netPrintIpHeader(struct netIpHeader* ipheader)</span> |
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| 100 | 00091 <span class="comment">{</span> |
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| 101 | 00092 <span class="comment"> rprintfProgStrM("IP Header\r\n");</span> |
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| 102 | 00093 <span class="comment"> rprintf("Ver : %d\r\n", (ipheader->vhl)>>4);</span> |
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| 103 | 00094 <span class="comment"> rprintf("Length : %d\r\n", htons(ipheader->len));</span> |
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| 104 | 00095 <span class="comment"> if(ipheader->proto == IP_PROTO_ICMP)</span> |
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| 105 | 00096 <span class="comment"> rprintfProgStrM("Protocol: ICMP\r\n");</span> |
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| 106 | 00097 <span class="comment"> else if(ipheader->proto == IP_PROTO_TCP)</span> |
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| 107 | 00098 <span class="comment"> rprintfProgStrM("Protocol: TCP\r\n");</span> |
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| 108 | 00099 <span class="comment"> else if(ipheader->proto == IP_PROTO_UDP)</span> |
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| 109 | 00100 <span class="comment"> rprintfProgStrM("Protocol: UDP\r\n");</span> |
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| 110 | 00101 <span class="comment"> else</span> |
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| 111 | 00102 <span class="comment"> rprintf("Protocol: %d\r\n", ipheader->proto);</span> |
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| 112 | 00103 <span class="comment"> </span> |
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| 113 | 00104 <span class="comment"> rprintfProgStrM("SourceIP: "); netPrintIPAddr(htonl(ipheader->srcipaddr)); rprintfCRLF();</span> |
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| 114 | 00105 <span class="comment"> rprintfProgStrM("Dest IP: "); netPrintIPAddr(htonl(ipheader->destipaddr)); rprintfCRLF();</span> |
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| 115 | 00106 <span class="comment">}</span> |
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| 116 | 00107 <span class="comment"></span> |
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| 117 | 00108 <span class="comment">void netPrintTcpHeader(struct netTcpHeader* tcpheader)</span> |
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| 118 | 00109 <span class="comment">{</span> |
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| 119 | 00110 <span class="comment"> rprintfProgStrM("TCP Header\r\n");</span> |
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| 120 | 00111 <span class="comment"> rprintf("Src Port: %d\r\n", htons(tcpheader->srcport));</span> |
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| 121 | 00112 <span class="comment"> rprintf("Dst Port: %d\r\n", htons(tcpheader->destport));</span> |
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| 122 | 00113 <span class="comment"> rprintfProgStrM("Seq Num : 0x"); rprintfu32(htonl(tcpheader->seqno)); rprintfCRLF();</span> |
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| 123 | 00114 <span class="comment"> rprintfProgStrM("Ack Num : 0x"); rprintfu32(htonl(tcpheader->ackno)); rprintfCRLF();</span> |
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| 124 | 00115 <span class="comment"> rprintfProgStrM("Flags : ");</span> |
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| 125 | 00116 <span class="comment"> if(tcpheader->flags & TCP_FLAGS_FIN)</span> |
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| 126 | 00117 <span class="comment"> rprintfProgStrM("FIN ");</span> |
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| 127 | 00118 <span class="comment"> if(tcpheader->flags & TCP_FLAGS_SYN)</span> |
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| 128 | 00119 <span class="comment"> rprintfProgStrM("SYN ");</span> |
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| 129 | 00120 <span class="comment"> if(tcpheader->flags & TCP_FLAGS_RST)</span> |
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| 130 | 00121 <span class="comment"> rprintfProgStrM("RST ");</span> |
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| 131 | 00122 <span class="comment"> if(tcpheader->flags & TCP_FLAGS_PSH)</span> |
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| 132 | 00123 <span class="comment"> rprintfProgStrM("PSH ");</span> |
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| 133 | 00124 <span class="comment"> if(tcpheader->flags & TCP_FLAGS_ACK)</span> |
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| 134 | 00125 <span class="comment"> rprintfProgStrM("ACK ");</span> |
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| 135 | 00126 <span class="comment"> if(tcpheader->flags & TCP_FLAGS_URG)</span> |
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| 136 | 00127 <span class="comment"> rprintfProgStrM("URG ");</span> |
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| 137 | 00128 <span class="comment"> rprintfCRLF();</span> |
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| 138 | 00129 <span class="comment">}</span> |
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| 139 | 00130 <span class="comment">*/</span> |
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| 140 | 00131 |
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| 141 | </pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Oct 29 03:41:07 2006 for Procyon AVRlib by |
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| 142 | <a href="http://www.doxygen.org/index.html"> |
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| 143 | <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.2 </small></address> |
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| 144 | </body> |
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| 145 | </html> |
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