* Keypair: implement clone()
This was not implemented upstream in ed25519-dalek to force everyone to
think twice before creating another copy of a potentially sensitive
private key in memory.
See https://github.com/dalek-cryptography/ed25519-dalek/issues/76
However, there are now 9 instances of
Keypair::from_bytes(&keypair.to_bytes())
in the solana codebase and it would be preferable to have a function.
In particular since this also comes up when writing programs and can
cause users to either start messing with lifetimes or discover the
from_bytes() workaround themselves.
This patch opts to not implement the Clone trait. This avoids automatic
use in order to preserve some of the original "let developers think
twice about this" intention.
* Use Keypair::clone
* Concurrent replay slots
* Split out concurrent and single bank replay paths
* Sub function processing of replay results for readability
* Add feature switch for concurrent replay
https://github.com/solana-labs/solana/pull/22292
prevents rent paying accounts creation going forward. However a rent
paying account can linger on for ever if it is continually topped up but
stays below the rent-exempt minimum.
This can prevent eliminating accounts-rewrites and the problematic
rent_epoch field in accounts.
Link to discord discussion:
https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219
This commit restricts rent-paying accounts lifetime extension by
preventing increasing lamports on the account if the account stays below
the rent-exempt minimum.
* Adjusts test cases for stricter requirements.
* Removes account reset in deserialization test.
* Removes verify related test cases.
* Replicates account modification verification logic of PreAccount in BorrowedAccount.
* Adds TransactionContext::account_touched_flags.
* Adds account modification verification to the BPF ABIv0 and ABIv1 deserialization, CPI syscall and program-test.
* Replicates the total sum of all lamports verification of PreAccounts in InstructionContext
* Check that the callers instruction balance is maintained during a call / push.
* Replicates PreAccount statistics in TransactionContext.
* Disable verify() and verify_and_update() if the feature enable_early_verification_of_account_modifications is enabled.
* Moves Option<Rent> of enable_early_verification_of_account_modifications into TransactionContext::new().
* Relaxes AccountDataMeter related test cases.
* Don't touch the account if nothing changes.
* Adds two tests to trigger InstructionError::UnbalancedInstruction.
Co-authored-by: Justin Starry <justin@solana.com>
* Allow extending upgradeable program data account length
* Add is_writable check
* Fix cargo version
* System program fix, comment, and test
* Switch to u32 for serialized bytes value in ix
https://github.com/solana-labs/solana/pull/22292
prevents rent paying account creation going forward. As a result
rent_epoch field for rent exempt accounts is redundant, and advancing
this field will incur expensive account rewrites and cause discrepancy
between accounts-db and cached vote/stake accounts.
This commit adds a feature which upon activation preserves rent_epoch
field for rent exempt accounts so that the field is frozen and is no
longer advanced.
Indirect dependency packages introduce variations in features of other
dependencies, which affect the fingerprints of previously built
packages such as solana-program and cause redundant rebuilds of
affected packages. These changes specify several features in
dependencies specifications explicitly to a common set of
features. The result of such consolidation is improved re-usability of
previously built binary packages across programs/bpf/rust/ packages
when these packages are built in CI jobs.