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This commit is contained in:
Heiko Schaefer 2021-12-01 22:21:28 +01:00
parent ecd862e23f
commit 576110ecce
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1 changed files with 7 additions and 3 deletions
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10
openpgp-card/src/card_app.rs
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@ -79,14 +79,18 @@ impl CardApp {
let ext_cap = ard.extended_capabilities()?; let ext_cap = ard.extended_capabilities()?;
// Get max command/response byte sizes from card
let (max_cmd_bytes, max_rsp_bytes) = let (max_cmd_bytes, max_rsp_bytes) =
// FIXME: handle cmd/resp limits in ex-cap, for card <3.0 (?)
if let Ok(Some(eli)) = ard.extended_length_information() { if let Ok(Some(eli)) = ard.extended_length_information() {
// In card 3.x, max lengths come from ExtendedLengthInfo
(eli.max_command_bytes(), eli.max_response_bytes()) (eli.max_command_bytes(), eli.max_response_bytes())
} else if let (Some(cmd), Some(rsp)) } else if let (Some(cmd), Some(rsp)) =
= (ext_cap.max_cmd_len(), ext_cap.max_resp_len()) { (ext_cap.max_cmd_len(), ext_cap.max_resp_len())
{
// In card 2.x, max lengths come from ExtendedCapabilities
(cmd, rsp) (cmd, rsp)
} else { } else {
// Fallback: use 255 if we have no information from the card
(255, 255) (255, 255)
}; };