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JFFS ico file - RT-AC3200

Discussion in 'Asuswrt-Merlin' started by chas0001, Aug 18, 2017.

  1. chas0001

    chas0001 New Around Here

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    I have a very strange problem with my JFFS partition. There is a folder called USERICON that contains an ico file that is quite large. I delete it to free up space but whenever the router reboots it re-appears. The problem is that it takes up too much space in the JFFS partition and its usage eventually becomes 63/64 mb. The icon is an image of a Netgear router.

    ASUS WRT firmware : 380.67
    I have factory reset and the problem still persists.

    Thanks for any help you can provide.

    Screen Shot 2017-08-18 at 10.40.33.png
     
  2. thelonelycoder

    thelonelycoder Part of the Furniture

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    Have you set that image to one of your devices/clients when you click on the clients icon on the start page?
     
  3. chas0001

    chas0001 New Around Here

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    Yes I looked at that but thought a factory reset would restore everything. Attached is the client list icons and the actual icon in the USERICON folder.


    Its really strange Screen Shot 2017-08-18 at 11.55.45.png Screen Shot 2017-08-18 at 11.59.13.png
     
  4. thelonelycoder

    thelonelycoder Part of the Furniture

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    Is the ico file referenced in the /jffs/nmp_client_list?
     
  5. chas0001

    chas0001 New Around Here

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    Yes in that file is 2cb05d2fa94e>>WNDR4500. 2cb05d2fa94e is the name of the icon file in USERICON. What I don't understand is that I have not set it. The icon for WNDR4500 is one of the pre defined ones and not some high resolution image. I don't understand where its restoring this large icon from every time I delete it.

    Screen Shot 2017-08-18 at 12.29.36.png
     
  6. chas0001

    chas0001 New Around Here

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    I suppose that I can replace the 2cb05d2fa94e.ico with a much lower resolution one.
     
  7. thelonelycoder

    thelonelycoder Part of the Furniture

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    What if you reselect another icon? This should remove the *.ico file.
     
  8. chas0001

    chas0001 New Around Here

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    I chose the default icon for WNDR4500 and applied the changes but the nmp_client_list file has not changed (same date time). What is even stranger is that the size of the 2cb05d2fa94e.ico file has got larger. In my previous posts it was around 30mb and now its over 60.

    Screen Shot 2017-08-18 at 14.58.14.png
     
  9. chas0001

    chas0001 New Around Here

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    I have replaced the ico file with a much smaller one from elsewhere on the router. I think its a low quality icon of the actual 3200 router. Lets see what happens. It has freed the space in the JFFS partition.

    Screen Shot 2017-08-18 at 15.05.03.png Screen Shot 2017-08-18 at 15.08.01.png
     
  10. thelonelycoder

    thelonelycoder Part of the Furniture

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    Since you only have that one client referenced in /jffs/nmp_client_list, it is save to delete it, along with the ico file in the folder.
    Did you find where the large icon file comes from?
    Did a search yield anything?
     
  11. ColinTaylor

    ColinTaylor Part of the Furniture

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    It looks like the file size is being increased until it fills up all remaining space in the JFFS partition. Presumably the actual picture information is at the beginning of the file and remains intact and there is garbage being appended the to end of the file?

    The filename doesn't provide any clue to its origin as it's the device's MAC address.:(

    I might you useful to examine the original (large) file with a hex viewer and see what the data looks like. For example, is the picture data just being repeated endlessly?
     
  12. thelonelycoder

    thelonelycoder Part of the Furniture

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    If I select an icon from my computer, it gets added as randomname.log in the usericon directory and is referenced in the nmp_client_list.
    Adding another custom icon to anoother client adds a sencond randomname.log file, and the reference file gets appended.
     
  13. ColinTaylor

    ColinTaylor Part of the Furniture

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    I was just speculating on what had already been posted. The firmware I use (John's) doesn't have these icons so I can't check it here.

    Is it really randomname.log and not ico or png or something like that? Seems a bit strange to call it a log file.
     
  14. thelonelycoder

    thelonelycoder Part of the Furniture

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    Believe me, log is the extension in 380.68_beta
     
  15. chas0001

    chas0001 New Around Here

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    Thanks for all the help. I removed the DHCP reservation for the WNDR4500 router and rebooted but the .ico file was still there in USERICON. So I deleted the USERICON directory and rebooted. Nothing has appeared since. Of course, I am I am not 100% certain of the ramifications of doing this but it has not had any impact on the router so far. I am still not certain how this happened. I factory resetted the router before all this happened and made sure the JFFS partition was new (I did NOT restore it). Something, somewhere must have been left behind.

    And yes it seemed as if something was getting appended to the .ico file until it filled up all the space in the JFFS partition.

    Thanks again.
     
  16. Teymur

    Teymur Regular Contributor

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    Hey there, what a coincidence!!! I have the same exact issue with my RT-AC3200 and I also have that netgear ico appearing and filling up all the remaining space under /jffs/usericon
     
    Last edited: Mar 1, 2020
  17. ColinTaylor

    ColinTaylor Part of the Furniture

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    Same thing reported here also with a Netgear device.
     
    Teymur likes this.
  18. Teymur

    Teymur Regular Contributor

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    I have that exact netgear WNDR4500 router connected to my rt-ac3200 and using it as extender in my kitchen
     
  19. Teymur

    Teymur Regular Contributor

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    Hey ColinTaylor!
    Thank you very much!
     
    RattyMan likes this.
  20. RMerlin

    RMerlin Super Moderator

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    I bet the problem comes from the fact that multiple clients are masquerading under the same MAC due to the repeater.