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I’ve implemented the HTTP and FTP server using the MDK4.03 and RL-ARM 4.05 in a system based on LPC2468. The system makes use of a flash file system implemented in an SPI flash memory. The HTTP implementation works fine I can download and upload files to/from the file system on the device. When I tried the FTP server using the Windows command line FTP client utility I can connect to the FTP server, I can get a directory of the file system but I cannot get the files from the embedded file system. What is very strange is that I use the “mget *” command and the utility asks me if I want to get “file1” and I answer ‘y’ but then it says “File Not Found” and the same happens for the other files that were previously stored via the web interface. If I try to use the "put" command the Windows command line FTP client utility accepts the command but does not do anything. I used another FTP client app, the one from Total Commander and with it I can “put” files into the device but I cannot get them back. Besides Total Commander adds a “\” at the beginning of the file name. In the “NetConfig.c” I setup 10 TCP sockets, 4 to serve 4 HTTP sessions and 6 for 3 FTP sessions (I read in the TCPnet docs that the FTP server uses 2 sockets per session). I checked with Wireshark what is happening, I see the commands being sent and the responses coming from the embedded device so the TCP side is working. I noticed that the FTP server uses port 21 for command and ports starting with 1025 for data.
What I do not understand is why do I get the “”File Not Found” on get when a “dir” shows the file is there. Where should I look to find the problem? The “FTP_uic.c” is included in the project, the FTP file system access functions are very similar to the ones from the “HTTP_uic.c” .
Any pointer towards solving this problem will be greatly appreciated.
Many thanks, Doru
I noticed another oddity of the FTP server behavior in my system.
I tried 3 different FTP client programs: Windows command line FTP client, FileZilla and Total Commander. When I open the FTP connection using Total Commander it displays the root folder as “/\/*.*”. The other clients show the root folder as “/”.
This points to problems in handling the root folder path due to differences between UNIX and Windows path styles.
In order to get more info about the problem I tried the following tests.
1. I created a sub-folder and “put” a file in the sub-folder. Then I renamed the file and the operation worked but the renamed file was placed in the root. I then tried to rename a file from the root and the operation failed.
C:\fping>ftp 192.168.0.1 Connected to 192.168.0.1. 220 Keil FTP service User (192.168.0.1:(none)): FTP 331 Password required Password: 230 User logged in ftp> dir 200 Command successful 150 Opening data connection 01-01-80 12:00PM 59076 eCLRImg.img 226 Transfer complete ftp: 52 bytes received in 0.17Seconds 0.30Kbytes/sec. ftp> pwd 257 "/" is the current directory ftp> mkdir folder 250 File command completed ftp> dir 200 Command successful 150 Opening data connection 01-01-80 12:00PM 59076 eCLRImg.img 226 Transfer complete ftp: 52 bytes received in 0.20Seconds 0.26Kbytes/sec. ftp> cd folder 257 "/folder" is the current directory ftp> pwd 257 "/folder" is the current directory ftp> put eCLRImg.img 200 Command successful 150 Opening data connection 226 Transfer complete ftp: 59076 bytes sent in 0.00Seconds 59076000.00Kbytes/sec. ftp> dir 200 Command successful 150 Opening data connection 01-01-80 12:00PM 59076 eCLRImg.img 01-01-80 12:00PM 59076 \folder\eCLRImg.img 226 Transfer complete ftp: 110 bytes received in 0.30Seconds 0.37Kbytes/sec. ftp> pwd 257 "/folder" is the current directory ftp> rename eCLRImg.img image.bin 350 Ready for destination name 250 File command completed ftp> dir 200 Command successful 150 Opening data connection 01-01-80 12:00PM 59076 eCLRImg.img 01-01-80 12:00PM 59076 image.bin 226 Transfer complete ftp: 102 bytes received in 0.31Seconds 0.33Kbytes/sec. ftp> rename image.bin test.bin 350 Ready for destination name 550 File not found ftp> bye 221 Goodbye C:\fping>
2. I created again a subfolder, did a ”put” operation and then a “get” and the “get” from the subfolder worked fine.
C:\fping>ftp 192.168.0.1 Connected to 192.168.0.1. 220 Keil FTP service User (192.168.0.1:(none)): FTP 331 Password required Password: 230 User logged in ftp> dir 200 Command successful 150 Opening data connection 01-01-80 12:00PM 59076 eCLRImg.img 01-01-80 12:00PM 59076 image.bin 226 Transfer complete ftp: 102 bytes received in 0.30Seconds 0.34Kbytes/sec. ftp> mkdir folder 250 File command completed ftp> dir 200 Command successful 150 Opening data connection 01-01-80 12:00PM 59076 eCLRImg.img 01-01-80 12:00PM 59076 image.bin 226 Transfer complete ftp: 102 bytes received in 0.33Seconds 0.31Kbytes/sec. ftp> cd folder 257 "/folder" is the current directory ftp> put eCLRImg.img 200 Command successful 150 Opening data connection 226 Transfer complete ftp: 59076 bytes sent in 0.00Seconds 59076000.00Kbytes/sec. ftp> dir 200 Command successful 150 Opening data connection 01-01-80 12:00PM 59076 eCLRImg.img 01-01-80 12:00PM 59076 image.bin 01-01-80 12:00PM 59076 \folder\eCLRImg.img 226 Transfer complete ftp: 162 bytes received in 0.39Seconds 0.42Kbytes/sec. ftp> pwd 257 "/folder" is the current directory ftp> get \folder\eCLRImg.img 200 Command successful 550 File not found ftp> get eCLRImg.img 200 Command successful 150 Opening data connection 226 Transfer complete ftp: 59076 bytes received in 2.86Seconds 20.66Kbytes/sec. ftp> dir 200 Command successful 150 Opening data connection 01-01-80 12:00PM 59076 eCLRImg.img 01-01-80 12:00PM 59076 image.bin 01-01-80 12:00PM 59076 \folder\eCLRImg.img 226 Transfer complete ftp: 162 bytes received in 0.42Seconds 0.38Kbytes/sec. ftp> bye 221 Goodbye C:\fping>
Did anyone observe similar issues and know how to avoid/solve?
Thanks and best regards, Doru
Hi,
I have exactly the same problem. Any file I sent using Filezilla or using the C# FTP classes adds a "/" at the beginning of a the file. Apart from removing pre pending slashes in code, did you find a solution?
Hi Guys,
I have a very similar problems, im using LPC2378 / RL-ARM 4.12 and using FTP over File System in ROM i get the same error. The filesystem appear like corrupted, when i send a file the file appear with a anomalous "/". I can't create folder, anyone operation is avaliable. Can anyone give some light ?