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Versão do protegemed que calcula o tempo em ms da fuga, calcula o numero de onverflow (valores muito baixo) e underflow (valores muito altos). Além disso, calcula um valor médio a partir dos valores capturados e não apenas pela fft.
Dependencies: EthernetInterface mbed-rtos mbed
Codes/TftpServer.cpp@0:c64e1194230b, 2014-07-09 (annotated)
- Committer:
- rebonatto
- Date:
- Wed Jul 09 21:16:23 2014 +0000
- Revision:
- 0:c64e1194230b
Vers?o do Protegemed com calculo de tempo de fuga, overflow, underflow e novo valor m?dio (manual).
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
rebonatto | 0:c64e1194230b | 1 | #include "TftpServer.h" |
rebonatto | 0:c64e1194230b | 2 | |
rebonatto | 0:c64e1194230b | 3 | #include <stdio.h> |
rebonatto | 0:c64e1194230b | 4 | |
rebonatto | 0:c64e1194230b | 5 | /* |
rebonatto | 0:c64e1194230b | 6 | * |
rebonatto | 0:c64e1194230b | 7 | * TFTP Formats |
rebonatto | 0:c64e1194230b | 8 | |
rebonatto | 0:c64e1194230b | 9 | |
rebonatto | 0:c64e1194230b | 10 | Type Op # Format without header |
rebonatto | 0:c64e1194230b | 11 | 2 bytes string 1 byte string 1 byte |
rebonatto | 0:c64e1194230b | 12 | ----------------------------------------------- |
rebonatto | 0:c64e1194230b | 13 | RRQ/ | 01/02 | Filename | 0 | Mode | 0 | |
rebonatto | 0:c64e1194230b | 14 | WRQ ----------------------------------------------- |
rebonatto | 0:c64e1194230b | 15 | 2 bytes 2 bytes n bytes |
rebonatto | 0:c64e1194230b | 16 | --------------------------------- |
rebonatto | 0:c64e1194230b | 17 | DATA | 03 | Block # | Data | |
rebonatto | 0:c64e1194230b | 18 | --------------------------------- |
rebonatto | 0:c64e1194230b | 19 | 2 bytes 2 bytes |
rebonatto | 0:c64e1194230b | 20 | ------------------- |
rebonatto | 0:c64e1194230b | 21 | ACK | 04 | Block # | |
rebonatto | 0:c64e1194230b | 22 | -------------------- |
rebonatto | 0:c64e1194230b | 23 | 2 bytes 2 bytes string 1 byte |
rebonatto | 0:c64e1194230b | 24 | ---------------------------------------- |
rebonatto | 0:c64e1194230b | 25 | ERROR | 05 | ErrorCode | ErrMsg | 0 | |
rebonatto | 0:c64e1194230b | 26 | ---------------------------------------- |
rebonatto | 0:c64e1194230b | 27 | |
rebonatto | 0:c64e1194230b | 28 | |
rebonatto | 0:c64e1194230b | 29 | Listen to UDP port 69 |
rebonatto | 0:c64e1194230b | 30 | |
rebonatto | 0:c64e1194230b | 31 | On receive RRQ: Opens the file with semihosting |
rebonatto | 0:c64e1194230b | 32 | Send the file |
rebonatto | 0:c64e1194230b | 33 | |
rebonatto | 0:c64e1194230b | 34 | On receive WRQ: Open the file with semihosting |
rebonatto | 0:c64e1194230b | 35 | Send Ack |
rebonatto | 0:c64e1194230b | 36 | Receive Data Packet and write into the file |
rebonatto | 0:c64e1194230b | 37 | Send Ack |
rebonatto | 0:c64e1194230b | 38 | * |
rebonatto | 0:c64e1194230b | 39 | */ |
rebonatto | 0:c64e1194230b | 40 | |
rebonatto | 0:c64e1194230b | 41 | //LocalFileSystem local("local"); |
rebonatto | 0:c64e1194230b | 42 | |
rebonatto | 0:c64e1194230b | 43 | /* |
rebonatto | 0:c64e1194230b | 44 | static const char* file_not_found_msg = "\x00\x05\x00\x01\File not found.\x00"; //20 |
rebonatto | 0:c64e1194230b | 45 | static const char* file_too_big_msg = "\x00\x05\x00\x03\File is too big (>512kB).\x00"; //30 |
rebonatto | 0:c64e1194230b | 46 | static const char* file_already_exists_msg = "\x00\x05\x00\x06\File already exists.\x00"; //25 |
rebonatto | 0:c64e1194230b | 47 | static const char* file_unknown_error_msg = "\x00\x05\x00\x00Unable to open the file for write.\x00"; //40 |
rebonatto | 0:c64e1194230b | 48 | */ |
rebonatto | 0:c64e1194230b | 49 | |
rebonatto | 0:c64e1194230b | 50 | char* file_not_found_msg = "\x00\x05\x00\x01\File not found.\x00"; //20 |
rebonatto | 0:c64e1194230b | 51 | char* file_too_big_msg = "\x00\x05\x00\x03\File is too big (>512kB).\x00"; //30 |
rebonatto | 0:c64e1194230b | 52 | char* file_already_exists_msg = "\x00\x05\x00\x06\File already exists.\x00"; //25 |
rebonatto | 0:c64e1194230b | 53 | char* file_unknown_error_msg = "\x00\x05\x00\x00Unable to open the file for write.\x00"; //40 |
rebonatto | 0:c64e1194230b | 54 | |
rebonatto | 0:c64e1194230b | 55 | |
rebonatto | 0:c64e1194230b | 56 | |
rebonatto | 0:c64e1194230b | 57 | void TftpServer::TftpServerThread(void const *arg) |
rebonatto | 0:c64e1194230b | 58 | { |
rebonatto | 0:c64e1194230b | 59 | /* |
rebonatto | 0:c64e1194230b | 60 | printf("TFTP Thread starting...\n"); |
rebonatto | 0:c64e1194230b | 61 | |
rebonatto | 0:c64e1194230b | 62 | UDPSocket server; |
rebonatto | 0:c64e1194230b | 63 | |
rebonatto | 0:c64e1194230b | 64 | server.bind(69,NULL); |
rebonatto | 0:c64e1194230b | 65 | |
rebonatto | 0:c64e1194230b | 66 | while(1) |
rebonatto | 0:c64e1194230b | 67 | { |
rebonatto | 0:c64e1194230b | 68 | char *buffer = NULL; |
rebonatto | 0:c64e1194230b | 69 | int length = 0; |
rebonatto | 0:c64e1194230b | 70 | Endpoint remote; |
rebonatto | 0:c64e1194230b | 71 | if(server.receiveFrom(remote,&buffer,&length) == ERR_OK) |
rebonatto | 0:c64e1194230b | 72 | { |
rebonatto | 0:c64e1194230b | 73 | printf("Received %d bytes from %s:%d\n",length,remote.get_address(),remote.get_port()); |
rebonatto | 0:c64e1194230b | 74 | if(length > 2) |
rebonatto | 0:c64e1194230b | 75 | { |
rebonatto | 0:c64e1194230b | 76 | unsigned short int opcode = buffer[0]*0x100 + buffer[1]; |
rebonatto | 0:c64e1194230b | 77 | printf("Got opcode [%X]\n",opcode); |
rebonatto | 0:c64e1194230b | 78 | if(opcode == 1) |
rebonatto | 0:c64e1194230b | 79 | { |
rebonatto | 0:c64e1194230b | 80 | TftpDoRead(remote,buffer,length); |
rebonatto | 0:c64e1194230b | 81 | } |
rebonatto | 0:c64e1194230b | 82 | else if(opcode == 2) |
rebonatto | 0:c64e1194230b | 83 | { |
rebonatto | 0:c64e1194230b | 84 | TftpDoWrite(remote,buffer,length); |
rebonatto | 0:c64e1194230b | 85 | } |
rebonatto | 0:c64e1194230b | 86 | delete buffer; |
rebonatto | 0:c64e1194230b | 87 | } |
rebonatto | 0:c64e1194230b | 88 | } |
rebonatto | 0:c64e1194230b | 89 | } |
rebonatto | 0:c64e1194230b | 90 | */ |
rebonatto | 0:c64e1194230b | 91 | } |
rebonatto | 0:c64e1194230b | 92 | |
rebonatto | 0:c64e1194230b | 93 | void TftpServer::TftpDoRead(Endpoint remote,char *buffer,int length) |
rebonatto | 0:c64e1194230b | 94 | { |
rebonatto | 0:c64e1194230b | 95 | /* |
rebonatto | 0:c64e1194230b | 96 | char *filename = buffer+2; |
rebonatto | 0:c64e1194230b | 97 | |
rebonatto | 0:c64e1194230b | 98 | UDPSocket conn; |
rebonatto | 0:c64e1194230b | 99 | |
rebonatto | 0:c64e1194230b | 100 | if(conn.connect(remote.get_address(),remote.get_port()) != ERR_OK) |
rebonatto | 0:c64e1194230b | 101 | return; |
rebonatto | 0:c64e1194230b | 102 | |
rebonatto | 0:c64e1194230b | 103 | char fullpath[256]; |
rebonatto | 0:c64e1194230b | 104 | strcpy(fullpath,"/local/"); |
rebonatto | 0:c64e1194230b | 105 | strcat(fullpath,filename); |
rebonatto | 0:c64e1194230b | 106 | printf("File = %s\n",fullpath); |
rebonatto | 0:c64e1194230b | 107 | FILE *f = fopen(fullpath,"rb"); |
rebonatto | 0:c64e1194230b | 108 | |
rebonatto | 0:c64e1194230b | 109 | char *ans=NULL; |
rebonatto | 0:c64e1194230b | 110 | int len=0; |
rebonatto | 0:c64e1194230b | 111 | |
rebonatto | 0:c64e1194230b | 112 | if(f == NULL) |
rebonatto | 0:c64e1194230b | 113 | { |
rebonatto | 0:c64e1194230b | 114 | conn.send((char*)file_not_found_msg,20); |
rebonatto | 0:c64e1194230b | 115 | conn.receive(&ans,&len); |
rebonatto | 0:c64e1194230b | 116 | delete ans; |
rebonatto | 0:c64e1194230b | 117 | return; |
rebonatto | 0:c64e1194230b | 118 | } |
rebonatto | 0:c64e1194230b | 119 | |
rebonatto | 0:c64e1194230b | 120 | int idx = 1; |
rebonatto | 0:c64e1194230b | 121 | |
rebonatto | 0:c64e1194230b | 122 | int readbytes; |
rebonatto | 0:c64e1194230b | 123 | unsigned char *hdrptr = new unsigned char[516]; |
rebonatto | 0:c64e1194230b | 124 | unsigned char *dataptr = hdrptr+4; |
rebonatto | 0:c64e1194230b | 125 | |
rebonatto | 0:c64e1194230b | 126 | do |
rebonatto | 0:c64e1194230b | 127 | { |
rebonatto | 0:c64e1194230b | 128 | //opcode |
rebonatto | 0:c64e1194230b | 129 | hdrptr[0] = 0; |
rebonatto | 0:c64e1194230b | 130 | hdrptr[1] = 3; |
rebonatto | 0:c64e1194230b | 131 | //block # |
rebonatto | 0:c64e1194230b | 132 | hdrptr[2] = idx/0x100; |
rebonatto | 0:c64e1194230b | 133 | hdrptr[3] = idx%0x100; |
rebonatto | 0:c64e1194230b | 134 | |
rebonatto | 0:c64e1194230b | 135 | readbytes = fread(dataptr,1,512,f); |
rebonatto | 0:c64e1194230b | 136 | conn.send((char*)hdrptr,readbytes+4); |
rebonatto | 0:c64e1194230b | 137 | conn.receive(&ans,&len); |
rebonatto | 0:c64e1194230b | 138 | delete ans; |
rebonatto | 0:c64e1194230b | 139 | idx++; |
rebonatto | 0:c64e1194230b | 140 | } |
rebonatto | 0:c64e1194230b | 141 | while(readbytes == 512); |
rebonatto | 0:c64e1194230b | 142 | |
rebonatto | 0:c64e1194230b | 143 | fclose(f); |
rebonatto | 0:c64e1194230b | 144 | delete hdrptr; |
rebonatto | 0:c64e1194230b | 145 | */ |
rebonatto | 0:c64e1194230b | 146 | } |
rebonatto | 0:c64e1194230b | 147 | |
rebonatto | 0:c64e1194230b | 148 | void TftpServer::TftpDoWrite(Endpoint remote,char *buffer,int length) |
rebonatto | 0:c64e1194230b | 149 | { |
rebonatto | 0:c64e1194230b | 150 | /* |
rebonatto | 0:c64e1194230b | 151 | char *filename = buffer+2; |
rebonatto | 0:c64e1194230b | 152 | |
rebonatto | 0:c64e1194230b | 153 | UDPSocket conn; |
rebonatto | 0:c64e1194230b | 154 | err_t e; |
rebonatto | 0:c64e1194230b | 155 | if((e=conn.connect(remote.get_address(),remote.get_port())) != ERR_OK) |
rebonatto | 0:c64e1194230b | 156 | { |
rebonatto | 0:c64e1194230b | 157 | printf("Connect error %d\n",e); |
rebonatto | 0:c64e1194230b | 158 | return; |
rebonatto | 0:c64e1194230b | 159 | } |
rebonatto | 0:c64e1194230b | 160 | |
rebonatto | 0:c64e1194230b | 161 | char fullpath[256]; |
rebonatto | 0:c64e1194230b | 162 | strcpy(fullpath,"/local/"); |
rebonatto | 0:c64e1194230b | 163 | strcat(fullpath,filename); |
rebonatto | 0:c64e1194230b | 164 | printf("File = %s\n",fullpath); |
rebonatto | 0:c64e1194230b | 165 | |
rebonatto | 0:c64e1194230b | 166 | char *ans=NULL; |
rebonatto | 0:c64e1194230b | 167 | int len=0; |
rebonatto | 0:c64e1194230b | 168 | |
rebonatto | 0:c64e1194230b | 169 | FILE *f = fopen(fullpath,"rb"); |
rebonatto | 0:c64e1194230b | 170 | if(f != NULL) |
rebonatto | 0:c64e1194230b | 171 | { |
rebonatto | 0:c64e1194230b | 172 | conn.send((char*)file_already_exists_msg,25); |
rebonatto | 0:c64e1194230b | 173 | //conn.receive(&ans,&len); |
rebonatto | 0:c64e1194230b | 174 | fclose(f); |
rebonatto | 0:c64e1194230b | 175 | delete ans; |
rebonatto | 0:c64e1194230b | 176 | return; |
rebonatto | 0:c64e1194230b | 177 | } |
rebonatto | 0:c64e1194230b | 178 | |
rebonatto | 0:c64e1194230b | 179 | f = fopen(fullpath,"wb"); |
rebonatto | 0:c64e1194230b | 180 | if(f == NULL) |
rebonatto | 0:c64e1194230b | 181 | { |
rebonatto | 0:c64e1194230b | 182 | conn.send((char*)file_unknown_error_msg,40); |
rebonatto | 0:c64e1194230b | 183 | //conn.receive(&ans,&len); |
rebonatto | 0:c64e1194230b | 184 | delete ans; |
rebonatto | 0:c64e1194230b | 185 | return; |
rebonatto | 0:c64e1194230b | 186 | } |
rebonatto | 0:c64e1194230b | 187 | |
rebonatto | 0:c64e1194230b | 188 | //int buflen; |
rebonatto | 0:c64e1194230b | 189 | unsigned char ack[4]; |
rebonatto | 0:c64e1194230b | 190 | ack[0] = 0; |
rebonatto | 0:c64e1194230b | 191 | ack[1] = 4; |
rebonatto | 0:c64e1194230b | 192 | ack[2] = 0; |
rebonatto | 0:c64e1194230b | 193 | ack[3] = 0; |
rebonatto | 0:c64e1194230b | 194 | |
rebonatto | 0:c64e1194230b | 195 | conn.send((char*)ack,4); |
rebonatto | 0:c64e1194230b | 196 | int error_tries = 5; |
rebonatto | 0:c64e1194230b | 197 | char *buf = NULL; |
rebonatto | 0:c64e1194230b | 198 | |
rebonatto | 0:c64e1194230b | 199 | do |
rebonatto | 0:c64e1194230b | 200 | { |
rebonatto | 0:c64e1194230b | 201 | |
rebonatto | 0:c64e1194230b | 202 | if(conn.receive(&buf,&len) != ERR_OK) |
rebonatto | 0:c64e1194230b | 203 | { |
rebonatto | 0:c64e1194230b | 204 | printf("Error\n"); |
rebonatto | 0:c64e1194230b | 205 | error_tries--; |
rebonatto | 0:c64e1194230b | 206 | if(error_tries == 0) |
rebonatto | 0:c64e1194230b | 207 | { |
rebonatto | 0:c64e1194230b | 208 | return; |
rebonatto | 0:c64e1194230b | 209 | } |
rebonatto | 0:c64e1194230b | 210 | conn.send((char*)ack,4); |
rebonatto | 0:c64e1194230b | 211 | continue; |
rebonatto | 0:c64e1194230b | 212 | } |
rebonatto | 0:c64e1194230b | 213 | |
rebonatto | 0:c64e1194230b | 214 | error_tries = 5; |
rebonatto | 0:c64e1194230b | 215 | int idx = buf[2]*0x100 + buf[3]; |
rebonatto | 0:c64e1194230b | 216 | |
rebonatto | 0:c64e1194230b | 217 | printf("Len = %d, Idx = %d\n",len,idx); |
rebonatto | 0:c64e1194230b | 218 | |
rebonatto | 0:c64e1194230b | 219 | fwrite(buf+4,1,len-4,f); |
rebonatto | 0:c64e1194230b | 220 | |
rebonatto | 0:c64e1194230b | 221 | delete buf; |
rebonatto | 0:c64e1194230b | 222 | |
rebonatto | 0:c64e1194230b | 223 | if(idx >= 1024) |
rebonatto | 0:c64e1194230b | 224 | { |
rebonatto | 0:c64e1194230b | 225 | conn.send((char*)file_too_big_msg,30); |
rebonatto | 0:c64e1194230b | 226 | //conn.receive(&ans,&len); |
rebonatto | 0:c64e1194230b | 227 | delete ans; |
rebonatto | 0:c64e1194230b | 228 | return; |
rebonatto | 0:c64e1194230b | 229 | } |
rebonatto | 0:c64e1194230b | 230 | |
rebonatto | 0:c64e1194230b | 231 | ack[2] = idx/0x100; |
rebonatto | 0:c64e1194230b | 232 | ack[3] = idx%0x100; |
rebonatto | 0:c64e1194230b | 233 | conn.send((char*)ack,4); |
rebonatto | 0:c64e1194230b | 234 | } |
rebonatto | 0:c64e1194230b | 235 | while(len == 516); |
rebonatto | 0:c64e1194230b | 236 | |
rebonatto | 0:c64e1194230b | 237 | fclose(f); |
rebonatto | 0:c64e1194230b | 238 | */ |
rebonatto | 0:c64e1194230b | 239 | } |