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Atomic create new files with permissions to owner in ethstore#8896
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Atomic create new files with permissions to owner in ethstore#8896
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andresilva
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debris
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andresilva
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We have two behaviors for `insert_with_filename` depending on whether `dedup` is true. Add `replace_file_with_permissions_to_owner` which use `OpenOptions::create(true)` instead of `create_new`.
andresilva
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* master: Minor fix in chain supplier and light provider (#8906) Block 0 is valid in queries (#8891) fixed osx permissions (#8901) Atomic create new files with permissions to owner in ethstore (#8896) Add ETC Cooperative-run load balanced parity node (#8892) Add support for --chain tobalaba (#8870) fix some warns on nightly (#8889) Add new ovh bootnodes and fix port for foundation bootnode 3.2 (#8886) SecretStore: service pack 1 (#8435)
tavakyan
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Jun 18, 2018
* Atomic create new files with permissions to owner in ethstore * Allow replacing existing files We have two behaviors for `insert_with_filename` depending on whether `dedup` is true. Add `replace_file_with_permissions_to_owner` which use `OpenOptions::create(true)` instead of `create_new`.
ordian
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…rp_sync_on_light_client * 'master' of https://github.com/paritytech/parity: (29 commits) Block 0 is valid in queries (openethereum#8891) fixed osx permissions (openethereum#8901) Atomic create new files with permissions to owner in ethstore (openethereum#8896) Add ETC Cooperative-run load balanced parity node (openethereum#8892) Add support for --chain tobalaba (openethereum#8870) fix some warns on nightly (openethereum#8889) Add new ovh bootnodes and fix port for foundation bootnode 3.2 (openethereum#8886) SecretStore: service pack 1 (openethereum#8435) Handle removed logs in filter changes and add geth compatibility field (openethereum#8796) fixed ipc leak, closes openethereum#8774 (openethereum#8876) scripts: remove md5 checksums (openethereum#8884) hardware_wallet/Ledger `Sign messages` + some refactoring (openethereum#8868) Check whether we need resealing in miner and unwrap has_account in account_provider (openethereum#8853) docker: Fix alpine build (openethereum#8878) Remove mac os installers etc (openethereum#8875) README.md: update the list of dependencies (openethereum#8864) Fix concurrent access to signer queue (openethereum#8854) Tx permission contract improvement (openethereum#8400) Limit the number of transactions in pending set (openethereum#8777) Use sealing.enabled to emit eth_mining information (openethereum#8844) ...
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In ethstore, there's a small window where a new key file is created but its permission bits have not been set. This PR fixes by setting the permission bits when creating the files.
std::os::unix::OpenOptionsExtis used to replace the small piece of unsafe code.OptionOptionsis changed to usecreate_new(true)instead ofcreate(true)-- we check whether the file exists before creating it, so if in that small window another process creates the file with the same name, it's better to fail rather than "stealing" that file.