lnrpc: add extended master key to walletunlocker

This commit is contained in:
Oliver Gugger 2020-10-24 23:18:48 +02:00
parent d329655bf6
commit 6d70468ad5
No known key found for this signature in database
GPG key ID: 8E4256593F177720
3 changed files with 139 additions and 58 deletions

View file

@ -189,6 +189,29 @@ type InitWalletRequest struct {
//admin macaroon returned in the response MUST be stored by the caller of the
//RPC as otherwise all access to the daemon will be lost!
StatelessInit bool `protobuf:"varint,6,opt,name=stateless_init,json=statelessInit,proto3" json:"stateless_init,omitempty"`
//
//extended_master_key is an alternative to specifying cipher_seed_mnemonic and
//aezeed_passphrase. Instead of deriving the master root key from the entropy
//of an aezeed cipher seed, the given extended master root key is used
//directly as the wallet's master key. This allows users to import/use a
//master key from another wallet. When doing so, lnd still uses its default
//SegWit only (BIP49/84) derivation paths and funds from custom/non-default
//derivation paths will not automatically appear in the on-chain wallet. Using
//an 'xprv' instead of an aezeed also has the disadvantage that the wallet's
//birthday is not known as that is an information that's only encoded in the
//aezeed, not the xprv. Therefore a birthday needs to be specified in
//extended_master_key_birthday_timestamp or a "safe" default value will be
//used.
ExtendedMasterKey string `protobuf:"bytes,7,opt,name=extended_master_key,json=extendedMasterKey,proto3" json:"extended_master_key,omitempty"`
//
//extended_master_key_birthday_timestamp is the optional unix timestamp in
//seconds to use as the wallet's birthday when using an extended master key
//to restore the wallet. lnd will only start scanning for funds in blocks that
//are after the birthday which can speed up the process significantly. If the
//birthday is not known, this should be left at its default value of 0 in
//which case lnd will start scanning from the first SegWit block (481824 on
//mainnet).
ExtendedMasterKeyBirthdayTimestamp uint64 `protobuf:"varint,8,opt,name=extended_master_key_birthday_timestamp,json=extendedMasterKeyBirthdayTimestamp,proto3" json:"extended_master_key_birthday_timestamp,omitempty"`
}
func (x *InitWalletRequest) Reset() {
@ -265,6 +288,20 @@ func (x *InitWalletRequest) GetStatelessInit() bool {
return false
}
func (x *InitWalletRequest) GetExtendedMasterKey() string {
if x != nil {
return x.ExtendedMasterKey
}
return ""
}
func (x *InitWalletRequest) GetExtendedMasterKeyBirthdayTimestamp() uint64 {
if x != nil {
return x.ExtendedMasterKeyBirthdayTimestamp
}
return 0
}
type InitWalletResponse struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
@ -605,8 +642,8 @@ var file_walletunlocker_proto_rawDesc = []byte{
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}
var (

View file

@ -149,6 +149,33 @@ message InitWalletRequest {
RPC as otherwise all access to the daemon will be lost!
*/
bool stateless_init = 6;
/*
extended_master_key is an alternative to specifying cipher_seed_mnemonic and
aezeed_passphrase. Instead of deriving the master root key from the entropy
of an aezeed cipher seed, the given extended master root key is used
directly as the wallet's master key. This allows users to import/use a
master key from another wallet. When doing so, lnd still uses its default
SegWit only (BIP49/84) derivation paths and funds from custom/non-default
derivation paths will not automatically appear in the on-chain wallet. Using
an 'xprv' instead of an aezeed also has the disadvantage that the wallet's
birthday is not known as that is an information that's only encoded in the
aezeed, not the xprv. Therefore a birthday needs to be specified in
extended_master_key_birthday_timestamp or a "safe" default value will be
used.
*/
string extended_master_key = 7;
/*
extended_master_key_birthday_timestamp is the optional unix timestamp in
seconds to use as the wallet's birthday when using an extended master key
to restore the wallet. lnd will only start scanning for funds in blocks that
are after the birthday which can speed up the process significantly. If the
birthday is not known, this should be left at its default value of 0 in
which case lnd will start scanning from the first SegWit block (481824 on
mainnet).
*/
uint64 extended_master_key_birthday_timestamp = 8;
}
message InitWalletResponse {
/*

View file

@ -300,6 +300,15 @@
"stateless_init": {
"type": "boolean",
"title": "stateless_init is an optional argument instructing the daemon NOT to create\nany *.macaroon files in its filesystem. If this parameter is set, then the\nadmin macaroon returned in the response MUST be stored by the caller of the\nRPC as otherwise all access to the daemon will be lost!"
},
"extended_master_key": {
"type": "string",
"description": "extended_master_key is an alternative to specifying cipher_seed_mnemonic and\naezeed_passphrase. Instead of deriving the master root key from the entropy\nof an aezeed cipher seed, the given extended master root key is used\ndirectly as the wallet's master key. This allows users to import/use a\nmaster key from another wallet. When doing so, lnd still uses its default\nSegWit only (BIP49/84) derivation paths and funds from custom/non-default\nderivation paths will not automatically appear in the on-chain wallet. Using\nan 'xprv' instead of an aezeed also has the disadvantage that the wallet's\nbirthday is not known as that is an information that's only encoded in the\naezeed, not the xprv. Therefore a birthday needs to be specified in\nextended_master_key_birthday_timestamp or a \"safe\" default value will be\nused."
},
"extended_master_key_birthday_timestamp": {
"type": "string",
"format": "uint64",
"description": "extended_master_key_birthday_timestamp is the optional unix timestamp in\nseconds to use as the wallet's birthday when using an extended master key\nto restore the wallet. lnd will only start scanning for funds in blocks that\nare after the birthday which can speed up the process significantly. If the\nbirthday is not known, this should be left at its default value of 0 in\nwhich case lnd will start scanning from the first SegWit block (481824 on\nmainnet)."
}
}
},