1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
use {
    crate::{
        instruction::InstructionError, message::SanitizeMessageError, sanitize::SanitizeError,
    },
    serde::Serialize,
    thiserror::Error,
};

/// Reasons a transaction might be rejected.
#[derive(
    Error, Serialize, Deserialize, Debug, PartialEq, Eq, Clone, AbiExample, AbiEnumVisitor,
)]
pub enum TransactionError {
    /// An account is already being processed in another transaction in a way
    /// that does not support parallelism
    #[error("Account in use")]
    AccountInUse,

    /// A `Pubkey` appears twice in the transaction's `account_keys`.  Instructions can reference
    /// `Pubkey`s more than once but the message must contain a list with no duplicate keys
    #[error("Account loaded twice")]
    AccountLoadedTwice,

    /// Attempt to debit an account but found no record of a prior credit.
    #[error("Attempt to debit an account but found no record of a prior credit.")]
    AccountNotFound,

    /// Attempt to load a program that does not exist
    #[error("Attempt to load a program that does not exist")]
    ProgramAccountNotFound,

    /// The from `Pubkey` does not have sufficient balance to pay the fee to schedule the transaction
    #[error("Insufficient funds for fee")]
    InsufficientFundsForFee,

    /// This account may not be used to pay transaction fees
    #[error("This account may not be used to pay transaction fees")]
    InvalidAccountForFee,

    /// The bank has seen this transaction before. This can occur under normal operation
    /// when a UDP packet is duplicated, as a user error from a client not updating
    /// its `recent_blockhash`, or as a double-spend attack.
    #[error("This transaction has already been processed")]
    AlreadyProcessed,

    /// The bank has not seen the given `recent_blockhash` or the transaction is too old and
    /// the `recent_blockhash` has been discarded.
    #[error("Blockhash not found")]
    BlockhashNotFound,

    /// An error occurred while processing an instruction. The first element of the tuple
    /// indicates the instruction index in which the error occurred.
    #[error("Error processing Instruction {0}: {1}")]
    InstructionError(u8, InstructionError),

    /// Loader call chain is too deep
    #[error("Loader call chain is too deep")]
    CallChainTooDeep,

    /// Transaction requires a fee but has no signature present
    #[error("Transaction requires a fee but has no signature present")]
    MissingSignatureForFee,

    /// Transaction contains an invalid account reference
    #[error("Transaction contains an invalid account reference")]
    InvalidAccountIndex,

    /// Transaction did not pass signature verification
    #[error("Transaction did not pass signature verification")]
    SignatureFailure,

    /// This program may not be used for executing instructions
    #[error("This program may not be used for executing instructions")]
    InvalidProgramForExecution,

    /// Transaction failed to sanitize accounts offsets correctly
    /// implies that account locks are not taken for this TX, and should
    /// not be unlocked.
    #[error("Transaction failed to sanitize accounts offsets correctly")]
    SanitizeFailure,

    #[error("Transactions are currently disabled due to cluster maintenance")]
    ClusterMaintenance,

    /// Transaction processing left an account with an outstanding borrowed reference
    #[error("Transaction processing left an account with an outstanding borrowed reference")]
    AccountBorrowOutstanding,

    /// Transaction would exceed max Block Cost Limit
    #[error("Transaction would exceed max Block Cost Limit")]
    WouldExceedMaxBlockCostLimit,

    /// Transaction version is unsupported
    #[error("Transaction version is unsupported")]
    UnsupportedVersion,

    /// Transaction loads a writable account that cannot be written
    #[error("Transaction loads a writable account that cannot be written")]
    InvalidWritableAccount,

    /// Transaction would exceed max account limit within the block
    #[error("Transaction would exceed max account limit within the block")]
    WouldExceedMaxAccountCostLimit,

    /// Transaction would exceed max account data limit within the block
    #[error("Transaction would exceed max account data limit within the block")]
    WouldExceedMaxAccountDataCostLimit,

    /// Transaction locked too many accounts
    #[error("Transaction locked too many accounts")]
    TooManyAccountLocks,

    /// Address lookup table not found
    #[error("Transaction loads an address table account that doesn't exist")]
    AddressLookupTableNotFound,

    /// Attempted to lookup addresses from an account owned by the wrong program
    #[error("Transaction loads an address table account with an invalid owner")]
    InvalidAddressLookupTableOwner,

    /// Attempted to lookup addresses from an invalid account
    #[error("Transaction loads an address table account with invalid data")]
    InvalidAddressLookupTableData,

    /// Address table lookup uses an invalid index
    #[error("Transaction address table lookup uses an invalid index")]
    InvalidAddressLookupTableIndex,

    /// Transaction leaves an account with a lower balance than rent-exempt minimum
    #[error("Transaction leaves an account with a lower balance than rent-exempt minimum")]
    InvalidRentPayingAccount,

    /// Transaction would exceed max Vote Cost Limit
    #[error("Transaction would exceed max Vote Cost Limit")]
    WouldExceedMaxVoteCostLimit,
}

impl From<SanitizeError> for TransactionError {
    fn from(_: SanitizeError) -> Self {
        Self::SanitizeFailure
    }
}

impl From<SanitizeMessageError> for TransactionError {
    fn from(_err: SanitizeMessageError) -> Self {
        Self::SanitizeFailure
    }
}

#[derive(Debug, Error, PartialEq, Eq, Clone)]
pub enum AddressLookupError {
    /// Attempted to lookup addresses from a table that does not exist
    #[error("Attempted to lookup addresses from a table that does not exist")]
    LookupTableAccountNotFound,

    /// Attempted to lookup addresses from an account owned by the wrong program
    #[error("Attempted to lookup addresses from an account owned by the wrong program")]
    InvalidAccountOwner,

    /// Attempted to lookup addresses from an invalid account
    #[error("Attempted to lookup addresses from an invalid account")]
    InvalidAccountData,

    /// Address lookup contains an invalid index
    #[error("Address lookup contains an invalid index")]
    InvalidLookupIndex,
}

impl From<AddressLookupError> for TransactionError {
    fn from(err: AddressLookupError) -> Self {
        match err {
            AddressLookupError::LookupTableAccountNotFound => Self::AddressLookupTableNotFound,
            AddressLookupError::InvalidAccountOwner => Self::InvalidAddressLookupTableOwner,
            AddressLookupError::InvalidAccountData => Self::InvalidAddressLookupTableData,
            AddressLookupError::InvalidLookupIndex => Self::InvalidAddressLookupTableIndex,
        }
    }
}