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Volume Handle Checksum #112

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Volume Handle Checksum #112

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24 changes: 24 additions & 0 deletions csi.proto
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Original file line number Diff line number Diff line change
Expand Up @@ -270,6 +270,30 @@ message VolumeHandle {
// Since this field MAY contain sensitive information, the CO MUST NOT
// leak this information to untrusted entities.
map<string, string> metadata = 2;

// Checksum is the MD5 checksum of the handle's ID and metadata. The
// checksum should be calculated by writing the handle's ID to a
// buffer followed by writing the metadata's key/value pairs to the
// same buffer where the keys are sorted lexicographically.
//
// For example, take the following handle:
//
// id = "vol-00"
// metadata = {"region":"US","alerts":"false","name":"MyVol"}
//
// The buffer used to calculate the checksum for the above handle
// would look like this:
//
// vol-00alertsfalsenameMyVolregionUS
//
// The MD5 checksum for the above handle is therefore
// 81504c01d43ab67052fca49012875537.
//
// This field is REQUIRED.
//
// Since this field is a hash of information that MAY be sensitive,
// the CO MUST NOT leak this information to untrusted entities.
string checksum = 3;
}

// A standard way to encode credential data. The total bytes of the
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