cid-sec: fix bitswap strom caused by insecure CIDs #4946
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ghost
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Kubuxu
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| for _, c := range ks { | ||
| // hash security | ||
| if err := verifcid.ValidateCid(c); err != nil { | ||
| log.Errorf("unsafe CID (%s) passed to blockService.GetBlocks: %s", c, err) |
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Seems like the right solution to this might be to just add a return of a closed block channel after the error here.
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Not really, a file might have an unsafe block near the end of a file, most of the file should be OK to read. Just the end might be bad.
That is why I sort out the unsafe CIDs and fetch and/or read only the good ones.
Stebalien
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Apr 19, 2018
|
@Stebalien I will try. |
License: MIT Signed-off-by: Łukasz Magiera <magik6k@gmail.com>
When we introduced CID security we didn't take into account that bitswap might repeatly try getting the objects from the network if it fails putting them into the blockstore. Solution from this is not requesting those objects from bitswap. The proper solution of failing at CID creation will make in much more cleaner in future. License: MIT Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>
License: MIT Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>
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When we introduced CID security we didn't take into account that bitswap
might repeatedly try getting the objects from the network if it fails
putting them into the blockstore.
A solution from this is not requesting those objects from bitswap.
The proper solution of failing at CID creation will make it much more
cleaner in future.
License: MIT
Signed-off-by: Jakub Sztandera kubuxu@protonmail.ch