feat(core): SLIP-24 payment requests for Stellar

diff --git a/common/protob/messages-stellar.proto b/common/protob/messages-stellar.proto
index 056c55bb..f5d6d797 100644
--- a/common/protob/messages-stellar.proto
+++ b/common/protob/messages-stellar.proto
@@ -5,6 +5,9 @@ package hw.trezor.messages.stellar;
 option java_package = "com.satoshilabs.trezor.lib.protobuf";
 option java_outer_classname = "TrezorMessageStellar";
 
+import "messages-common.proto";
+import "options.proto";
+
 // https://github.com/stellar/stellar-core/blob/02d26858069de7c0eefe065056fb0a19bf72ea56/src/xdr/Stellar-ledger-entries.x#L25-L31
 enum StellarAssetType {
     NATIVE = 0;
@@ -61,6 +64,7 @@ message StellarSignTx {
     optional uint64 memo_id = 12;            // 8-byte uint64
     optional bytes memo_hash = 13;           // 32 bytes representing a hash
     required uint32 num_operations = 14;     // number of operations in this transaction
+    optional common.PaymentRequest payment_req = 15 [(experimental_field)=true]; // SLIP-24 payment request
 
     // https://github.com/stellar/stellar-core/blob/02d26858069de7c0eefe065056fb0a19bf72ea56/src/xdr/Stellar-transaction.x#L506-L513
     enum StellarMemoType {
diff --git a/common/tests/fixtures/stellar/sign_tx.json b/common/tests/fixtures/stellar/sign_tx.json
index 4e6c314c..0335d38d 100644
--- a/common/tests/fixtures/stellar/sign_tx.json
+++ b/common/tests/fixtures/stellar/sign_tx.json
@@ -204,6 +204,121 @@
         "signature": "3dyV+ehncXreLCg6lDZWsYUwUtWoggNOdDDrRCn3YZ/V2rX+6c0ngydfWfgI3HOpM9yfUmrIKzyXNMPW31xzCQ=="
       }
     },
+    {
+      "name": "StellarPaymentOp-memo-and-payment-request",
+      "experimental": true,
+      "parameters": {
+        "xdr": "AAAAAgAAAAAvIrnGLwi3dPPr5t1ufbk8PsLL3gJ5Vho9nFIluMMikgAAAGQAAAAAAAAD6AAAAAEAAAAAG4J3zQAAAABd5CqEAAAAAAAAAAEAAAAAAAAAAQAAAABdVWQkZrGFuEMVLp4hkVHbxYkgJ+xAEBpRe+1coDDC4AAAAAFYAAAAAAAAACmElgLCDlg2XxI8Eth6HKRVDRDNIbCuDhjUTj5W/WoVAAAAAB3PFpgAAAAAAAAAAA==",
+        "address_n": "m/44'/148'/0'",
+        "network_passphrase": "Test SDF Network ; September 2015",
+        "tx": {
+          "source_account": "GAXSFOOGF4ELO5HT5PTN23T5XE6D5QWL3YBHSVQ2HWOFEJNYYMRJENBV",
+          "fee": 100,
+          "sequence_number": 1000,
+          "timebounds_start": 461535181,
+          "timebounds_end": 1575234180,
+          "memo_type": "TEXT",
+          "memo_text": "Hello payment requests!"
+        },
+        "operations": [
+          {
+            "_message_type": "StellarPaymentOp",
+            "destination_account": "GBOVKZBEM2YYLOCDCUXJ4IMRKHN4LCJAE7WEAEA2KF562XFAGDBOB64V",
+            "asset": {
+              "type": "ALPHANUM4",
+              "code": "X",
+              "issuer": "GAUYJFQCYIHFQNS7CI6BFWD2DSSFKDIQZUQ3BLQODDKE4PSW7VVBKENC"
+            },
+            "amount": 500111000
+          }
+        ],
+        "payment_request": true
+      },
+      "result": {
+        "public_key": "2f22b9c62f08b774f3ebe6dd6e7db93c3ec2cbde0279561a3d9c5225b8c32292",
+        "signature": "ATGEYTnuzlDzIGtAPSdZ67ALfKTfa7jrVRHyAXnAYz/pFcT8q/F2rGlhwn1UHxove5bHaMu9NyiqhHH4yoSBCA=="
+      },
+      "skip_models": ["t1"]
+    },
+    {
+      "name": "StellarPaymentOp-payment-request",
+      "experimental": true,
+      "parameters": {
+        "xdr": "AAAAAgAAAAAvIrnGLwi3dPPr5t1ufbk8PsLL3gJ5Vho9nFIluMMikgAAAGQAAAAAAAAD6AAAAAEAAAAAG4J3zQAAAABd5CqEAAAAAAAAAAEAAAAAAAAAAQAAAABdVWQkZrGFuEMVLp4hkVHbxYkgJ+xAEBpRe+1coDDC4AAAAAFYAAAAAAAAACmElgLCDlg2XxI8Eth6HKRVDRDNIbCuDhjUTj5W/WoVAAAAAB3PFpgAAAAAAAAAAA==",
+        "address_n": "m/44'/148'/0'",
+        "network_passphrase": "Test SDF Network ; September 2015",
+        "tx": {
+          "source_account": "GAXSFOOGF4ELO5HT5PTN23T5XE6D5QWL3YBHSVQ2HWOFEJNYYMRJENBV",
+          "fee": 100,
+          "sequence_number": 1000,
+          "timebounds_start": 461535181,
+          "timebounds_end": 1575234180,
+          "memo_type": "NONE"
+        },
+        "operations": [
+          {
+            "_message_type": "StellarPaymentOp",
+            "destination_account": "GBOVKZBEM2YYLOCDCUXJ4IMRKHN4LCJAE7WEAEA2KF562XFAGDBOB64V",
+            "asset": {
+              "type": "ALPHANUM4",
+              "code": "X",
+              "issuer": "GAUYJFQCYIHFQNS7CI6BFWD2DSSFKDIQZUQ3BLQODDKE4PSW7VVBKENC"
+            },
+            "amount": 500111000
+          }
+        ],
+        "payment_request": true
+      },
+      "result": {
+        "public_key": "2f22b9c62f08b774f3ebe6dd6e7db93c3ec2cbde0279561a3d9c5225b8c32292",
+        "signature": "nPrFo5IQ5vESiX9F4fi+zOuZom/TM8ZzO+qPHSxTmC2JnILqtbh91CV8Teao0jVrovjQmmgxLPzOSjgPNYmJBw=="
+      },
+      "skip_models": ["t1"]
+    },
+    {
+      "name": "StellarPaymentOp-payment-request-multiple-operations",
+      "experimental": true,
+      "parameters": {
+        "xdr": "AAAAAgAAAAAvIrnGLwi3dPPr5t1ufbk8PsLL3gJ5Vho9nFIluMMikgAAAGQAAAAAAAAD6AAAAAEAAAAAG4J3zQAAAABd5CqEAAAAAAAAAAEAAAAAAAAAAQAAAABdVWQkZrGFuEMVLp4hkVHbxYkgJ+xAEBpRe+1coDDC4AAAAAFYAAAAAAAAACmElgLCDlg2XxI8Eth6HKRVDRDNIbCuDhjUTj5W/WoVAAAAAB3PFpgAAAAAAAAAAA==",
+        "address_n": "m/44'/148'/0'",
+        "network_passphrase": "Test SDF Network ; September 2015",
+        "tx": {
+          "source_account": "GAXSFOOGF4ELO5HT5PTN23T5XE6D5QWL3YBHSVQ2HWOFEJNYYMRJENBV",
+          "fee": 100,
+          "sequence_number": 1000,
+          "timebounds_start": 461535181,
+          "timebounds_end": 1575234180,
+          "memo_type": "NONE"
+        },
+        "operations": [
+          {
+            "_message_type": "StellarPaymentOp",
+            "destination_account": "GBOVKZBEM2YYLOCDCUXJ4IMRKHN4LCJAE7WEAEA2KF562XFAGDBOB64V",
+            "asset": {
+              "type": "ALPHANUM4",
+              "code": "X",
+              "issuer": "GAUYJFQCYIHFQNS7CI6BFWD2DSSFKDIQZUQ3BLQODDKE4PSW7VVBKENC"
+            },
+            "amount": 200111000
+          },
+          {
+            "_message_type": "StellarPaymentOp",
+            "destination_account": "GBOVKZBEM2YYLOCDCUXJ4IMRKHN4LCJAE7WEAEA2KF562XFAGDBOB64V",
+            "asset": {
+              "type": "ALPHANUM4",
+              "code": "X",
+              "issuer": "GAUYJFQCYIHFQNS7CI6BFWD2DSSFKDIQZUQ3BLQODDKE4PSW7VVBKENC"
+            },
+            "amount": 300111000
+          }
+        ],
+        "payment_request": true
+      },
+      "result": {
+        "error_message": "Multiple operations not supported for payment requests"
+      },
+      "skip_models": ["t1"]
+    },
     {
       "name": "StellarAllowTrustOp-allow",
       "parameters": {
diff --git a/core/src/apps/stellar/layout.py b/core/src/apps/stellar/layout.py
index a350ed99..8ac91718 100644
--- a/core/src/apps/stellar/layout.py
+++ b/core/src/apps/stellar/layout.py
@@ -1,14 +1,18 @@
 from typing import TYPE_CHECKING
 
 import trezor.ui.layouts as layouts
-from trezor import TR, strings
+from trezor import TR, strings, wire
 from trezor.enums import ButtonRequestType
 
+from apps.common.paths import address_n_to_str
+
 from . import consts
 
 if TYPE_CHECKING:
     from trezor.enums import StellarMemoType
-    from trezor.messages import StellarAsset
+    from trezor.messages import PaymentRequest, StellarAsset
+
+    from apps.common.paths import Bip32Path
 
 
 async def require_confirm_tx_source(tx_source: str) -> None:
@@ -53,6 +57,63 @@ async def require_confirm_memo(memo_type: StellarMemoType, memo_text: str) -> No
     )
 
 
+async def require_confirm_payment_request(
+    provider_address: str,
+    verified_payment_request: PaymentRequest,
+    address_n: Bip32Path | None,
+    asset: StellarAsset,
+) -> None:
+    from trezor.ui.layouts import confirm_payment_request
+
+    assert verified_payment_request.amount is not None  # required for non-CoinJoin
+
+    total_amount = format_amount(verified_payment_request.amount, asset)
+
+    texts: list[tuple[str | None, str]] = []
+    refunds: list[tuple[str, str | None, str | None]] = []
+    trades: list[tuple[str, str, str, str | None, str | None]] = []
+    for memo in verified_payment_request.memos:
+        if memo.text_memo is not None:
+            texts.append((None, memo.text_memo.text))
+        elif memo.text_details_memo is not None:
+            texts.append((memo.text_details_memo.title, memo.text_details_memo.text))
+        elif memo.refund_memo:
+            refund_account_path = address_n_to_str(memo.refund_memo.address_n)
+            refunds.append((memo.refund_memo.address, None, refund_account_path))
+        elif memo.coin_purchase_memo:
+            coin_purchase_account_path = address_n_to_str(
+                memo.coin_purchase_memo.address_n
+            )
+            trades.append(
+                (
+                    f"-\u00A0{total_amount}",
+                    f"+\u00A0{memo.coin_purchase_memo.amount}",
+                    memo.coin_purchase_memo.address,
+                    None,
+                    coin_purchase_account_path,
+                )
+            )
+        else:
+            raise wire.DataError("Unrecognized memo type in payment request memo.")
+
+    account_path = address_n_to_str(address_n) if address_n else None
+    account_items = []
+    if account_path:
+        account_items.append((TR.address_details__derivation_path, account_path))
+
+    await confirm_payment_request(
+        verified_payment_request.recipient_name,
+        provider_address,
+        texts,
+        refunds,
+        trades,
+        account_items,
+        None,
+        None,
+        None,
+    )
+
+
 async def require_confirm_final(
     address_n: list[int],
     fee: int,
diff --git a/core/src/apps/stellar/operations/__init__.py b/core/src/apps/stellar/operations/__init__.py
index ea1a565a..e69c12ea 100644
--- a/core/src/apps/stellar/operations/__init__.py
+++ b/core/src/apps/stellar/operations/__init__.py
@@ -6,7 +6,10 @@ if TYPE_CHECKING:
 
 
 async def process_operation(
-    w: Writer, op: StellarMessageType, output_index: int
+    w: Writer,
+    op: StellarMessageType,
+    output_index: int,
+    confirm: bool,
 ) -> None:
     # Importing the stuff inside (only) function saves around 100 bytes here
     # (probably because the local lookup is more efficient than a global lookup)
@@ -23,46 +26,60 @@ async def process_operation(
     writers.write_uint32(w, consts.get_op_code(op))
     # NOTE: each branch below has 45 bytes (26 the actions, 19 the condition)
     if messages.StellarAccountMergeOp.is_type_of(op):
-        await layout.confirm_account_merge_op(op, output_index)
+        if confirm:
+            await layout.confirm_account_merge_op(op, output_index)
         serialize.write_account_merge_op(w, op)
     elif messages.StellarAllowTrustOp.is_type_of(op):
-        await layout.confirm_allow_trust_op(op)
+        if confirm:
+            await layout.confirm_allow_trust_op(op)
         serialize.write_allow_trust_op(w, op)
     elif messages.StellarBumpSequenceOp.is_type_of(op):
-        await layout.confirm_bump_sequence_op(op)
+        if confirm:
+            await layout.confirm_bump_sequence_op(op)
         serialize.write_bump_sequence_op(w, op)
     elif messages.StellarChangeTrustOp.is_type_of(op):
-        await layout.confirm_change_trust_op(op)
+        if confirm:
+            await layout.confirm_change_trust_op(op)
         serialize.write_change_trust_op(w, op)
     elif messages.StellarCreateAccountOp.is_type_of(op):
-        await layout.confirm_create_account_op(op, output_index)
+        if confirm:
+            await layout.confirm_create_account_op(op, output_index)
         serialize.write_create_account_op(w, op)
     elif messages.StellarCreatePassiveSellOfferOp.is_type_of(op):
-        await layout.confirm_create_passive_sell_offer_op(op)
+        if confirm:
+            await layout.confirm_create_passive_sell_offer_op(op)
         serialize.write_create_passive_sell_offer_op(w, op)
     elif messages.StellarManageDataOp.is_type_of(op):
-        await layout.confirm_manage_data_op(op)
+        if confirm:
+            await layout.confirm_manage_data_op(op)
         serialize.write_manage_data_op(w, op)
     elif messages.StellarManageBuyOfferOp.is_type_of(op):
-        await layout.confirm_manage_buy_offer_op(op)
+        if confirm:
+            await layout.confirm_manage_buy_offer_op(op)
         serialize.write_manage_buy_offer_op(w, op)
     elif messages.StellarManageSellOfferOp.is_type_of(op):
-        await layout.confirm_manage_sell_offer_op(op)
+        if confirm:
+            await layout.confirm_manage_sell_offer_op(op)
         serialize.write_manage_sell_offer_op(w, op)
     elif messages.StellarPathPaymentStrictReceiveOp.is_type_of(op):
-        await layout.confirm_path_payment_strict_receive_op(op, output_index)
+        if confirm:
+            await layout.confirm_path_payment_strict_receive_op(op, output_index)
         serialize.write_path_payment_strict_receive_op(w, op)
     elif messages.StellarPathPaymentStrictSendOp.is_type_of(op):
-        await layout.confirm_path_payment_strict_send_op(op, output_index)
+        if confirm:
+            await layout.confirm_path_payment_strict_send_op(op, output_index)
         serialize.write_path_payment_strict_send_op(w, op)
     elif messages.StellarPaymentOp.is_type_of(op):
-        await layout.confirm_payment_op(op, output_index)
+        if confirm:
+            await layout.confirm_payment_op(op, output_index)
         serialize.write_payment_op(w, op)
     elif messages.StellarSetOptionsOp.is_type_of(op):
-        await layout.confirm_set_options_op(op)
+        if confirm:
+            await layout.confirm_set_options_op(op)
         serialize.write_set_options_op(w, op)
     elif messages.StellarClaimClaimableBalanceOp.is_type_of(op):
-        await layout.confirm_claim_claimable_balance_op(op)
+        if confirm:
+            await layout.confirm_claim_claimable_balance_op(op)
         serialize.write_claim_claimable_balance_op(w, op)
     else:
         raise ValueError("Unknown operation")
diff --git a/core/src/apps/stellar/sign_tx.py b/core/src/apps/stellar/sign_tx.py
index 44cdd8ea..055a4dce 100644
--- a/core/src/apps/stellar/sign_tx.py
+++ b/core/src/apps/stellar/sign_tx.py
@@ -1,15 +1,19 @@
 from typing import TYPE_CHECKING
 
-from apps.common.keychain import auto_keychain
+from apps.common.keychain import with_slip44_keychain
+
+from . import CURVE, PATTERN, SLIP44_ID
 
 if TYPE_CHECKING:
     from trezor.messages import StellarSignedTx, StellarSignTx
 
-    from apps.common.keychain import Keychain
+    from apps.common.keychain import Keychain as Slip21Keychain
 
 
-@auto_keychain(__name__)
-async def sign_tx(msg: StellarSignTx, keychain: Keychain) -> StellarSignedTx:
+@with_slip44_keychain(
+    *[PATTERN], slip44_id=SLIP44_ID, curve=CURVE, slip21_namespaces=[[b"SLIP-0024"]]
+)
+async def sign_tx(msg: StellarSignTx, keychain: Slip21Keychain) -> StellarSignedTx:
     from ubinascii import hexlify
 
     from trezor import TR
@@ -102,13 +106,28 @@ async def sign_tx(msg: StellarSignTx, keychain: Keychain) -> StellarSignedTx:
         raise ProcessError("Stellar invalid memo type")
     await layout.require_confirm_memo(memo_type, memo_confirm_text)
 
+    if msg.payment_req:
+        from apps.common.payment_request import PaymentRequestVerifier
+
+        verifier = PaymentRequestVerifier(msg.payment_req, SLIP44_ID, keychain)
+    else:
+        verifier = None
+
     # ---------------------------------
     # OPERATION
     # ---------------------------------
+
+    # these two are used in case of payment requests, where we allow only one output, hence we have a single output address and asset
+    output_address = None
+    output_asset = None
+
     writers.write_uint32(w, num_operations)
     for _ in range(num_operations):
         op = await call_any(StellarTxOpRequest(), *consts.op_codes.keys())
-        await process_operation(w, op, current_output_index)  # type: ignore [Argument of type "MessageType" cannot be assigned to parameter "op" of type "StellarMessageType" in function "process_operation"]
+
+        # Note: in case of payment requests we don't confirm each operation individually
+        # but rather we confirm the whole payment request afterwards
+        await process_operation(w, op, current_output_index, confirm=not msg.payment_req)  # type: ignore [Argument of type "MessageType" cannot be assigned to parameter "op" of type "StellarMessageType" in function "process_operation"]
 
         if op.source_account is not None and op.source_account != address:  # type: ignore [Cannot access attribute "source_account" for class "MessageType"]
             # if the operation source account does not match the Trezor account
@@ -124,6 +143,17 @@ async def sign_tx(msg: StellarSignTx, keychain: Keychain) -> StellarSignedTx:
                 StellarPathPaymentStrictReceiveOp,
             ]
         ):
+            if msg.payment_req:
+                assert verifier is not None
+                if current_output_index != 0:
+                    raise ProcessError(
+                        "Multiple operations not supported for payment requests"
+                    )
+                if StellarPaymentOp.is_type_of(op):
+                    verifier.add_output(op.amount, op.destination_account)
+                    output_address = op.destination_account
+                    output_asset = op.asset
+
             current_output_index += 1
 
     # ---------------------------------
@@ -131,6 +161,22 @@ async def sign_tx(msg: StellarSignTx, keychain: Keychain) -> StellarSignedTx:
     # ---------------------------------
     # 4 null bytes representing a (currently unused) empty union
     writers.write_uint32(w, 0)
+
+    if msg.payment_req:
+        assert verifier is not None
+
+        verifier.verify()
+
+        assert output_address
+        assert output_asset
+
+        await layout.require_confirm_payment_request(
+            output_address,
+            msg.payment_req,
+            msg.address_n,
+            output_asset,
+        )
+
     # final confirm
     await layout.require_confirm_final(
         msg.address_n,
diff --git a/core/src/trezor/messages.py b/core/src/trezor/messages.py
index bb18fd26..6902ecdb 100644
--- a/core/src/trezor/messages.py
+++ b/core/src/trezor/messages.py
@@ -5647,6 +5647,7 @@ if TYPE_CHECKING:
         memo_id: "int | None"
         memo_hash: "bytes | None"
         num_operations: "int"
+        payment_req: "PaymentRequest | None"
 
         def __init__(
             self,
@@ -5663,6 +5664,7 @@ if TYPE_CHECKING:
             memo_text: "str | None" = None,
             memo_id: "int | None" = None,
             memo_hash: "bytes | None" = None,
+            payment_req: "PaymentRequest | None" = None,
         ) -> None:
             pass
 
diff --git a/legacy/firmware/protob/messages-stellar.options b/legacy/firmware/protob/messages-stellar.options
index 1443b0d7..c8b6a302 100644
--- a/legacy/firmware/protob/messages-stellar.options
+++ b/legacy/firmware/protob/messages-stellar.options
@@ -10,6 +10,7 @@ StellarSignTx.address_n                                 max_count:10
 StellarSignTx.network_passphrase                        max_size:1024
 StellarSignTx.memo_text                                 max_size:29
 StellarSignTx.memo_hash                                 max_size:32
+StellarSignTx.payment_req                               type:FT_IGNORE
 
 StellarPaymentOp.source_account                         max_size:57
 StellarPaymentOp.destination_account                    max_size:57
diff --git a/python/src/trezorlib/messages.py b/python/src/trezorlib/messages.py
index 7e1a838a..a9fab2ed 100644
--- a/python/src/trezorlib/messages.py
+++ b/python/src/trezorlib/messages.py
@@ -7283,6 +7283,7 @@ class StellarSignTx(protobuf.MessageType):
         12: protobuf.Field("memo_id", "uint64", repeated=False, required=False, default=None),
         13: protobuf.Field("memo_hash", "bytes", repeated=False, required=False, default=None),
         14: protobuf.Field("num_operations", "uint32", repeated=False, required=True),
+        15: protobuf.Field("payment_req", "PaymentRequest", repeated=False, required=False, default=None),
     }
 
     def __init__(
@@ -7300,6 +7301,7 @@ class StellarSignTx(protobuf.MessageType):
         memo_text: Optional["str"] = None,
         memo_id: Optional["int"] = None,
         memo_hash: Optional["bytes"] = None,
+        payment_req: Optional["PaymentRequest"] = None,
     ) -> None:
         self.address_n: Sequence["int"] = address_n if address_n is not None else []
         self.network_passphrase = network_passphrase
@@ -7313,6 +7315,7 @@ class StellarSignTx(protobuf.MessageType):
         self.memo_text = memo_text
         self.memo_id = memo_id
         self.memo_hash = memo_hash
+        self.payment_req = payment_req
 
 
 class StellarTxOpRequest(protobuf.MessageType):
diff --git a/rust/trezor-client/src/protos/generated/messages_stellar.rs b/rust/trezor-client/src/protos/generated/messages_stellar.rs
index 36587bea..4785ee3a 100644
--- a/rust/trezor-client/src/protos/generated/messages_stellar.rs
+++ b/rust/trezor-client/src/protos/generated/messages_stellar.rs
@@ -721,6 +721,8 @@ pub struct StellarSignTx {
     pub memo_hash: ::std::option::Option<::std::vec::Vec<u8>>,
     // @@protoc_insertion_point(field:hw.trezor.messages.stellar.StellarSignTx.num_operations)
     pub num_operations: ::std::option::Option<u32>,
+    // @@protoc_insertion_point(field:hw.trezor.messages.stellar.StellarSignTx.payment_req)
+    pub payment_req: ::protobuf::MessageField<super::messages_common::PaymentRequest>,
     // special fields
     // @@protoc_insertion_point(special_field:hw.trezor.messages.stellar.StellarSignTx.special_fields)
     pub special_fields: ::protobuf::SpecialFields,
@@ -1018,7 +1020,7 @@ impl StellarSignTx {
     }
 
     fn generated_message_descriptor_data() -> ::protobuf::reflect::GeneratedMessageDescriptorData {
-        let mut fields = ::std::vec::Vec::with_capacity(12);
+        let mut fields = ::std::vec::Vec::with_capacity(13);
         let mut oneofs = ::std::vec::Vec::with_capacity(0);
         fields.push(::protobuf::reflect::rt::v2::make_vec_simpler_accessor::<_, _>(
             "address_n",
@@ -1080,6 +1082,11 @@ impl StellarSignTx {
             |m: &StellarSignTx| { &m.num_operations },
             |m: &mut StellarSignTx| { &mut m.num_operations },
         ));
+        fields.push(::protobuf::reflect::rt::v2::make_message_field_accessor::<_, super::messages_common::PaymentRequest>(
+            "payment_req",
+            |m: &StellarSignTx| { &m.payment_req },
+            |m: &mut StellarSignTx| { &mut m.payment_req },
+        ));
         ::protobuf::reflect::GeneratedMessageDescriptorData::new_2::<StellarSignTx>(
             "StellarSignTx",
             fields,
@@ -1116,6 +1123,11 @@ impl ::protobuf::Message for StellarSignTx {
         if self.num_operations.is_none() {
             return false;
         }
+        for v in &self.payment_req {
+            if !v.is_initialized() {
+                return false;
+            }
+        };
         true
     }
 
@@ -1161,6 +1173,9 @@ impl ::protobuf::Message for StellarSignTx {
                 112 => {
                     self.num_operations = ::std::option::Option::Some(is.read_uint32()?);
                 },
+                122 => {
+                    ::protobuf::rt::read_singular_message_into_field(is, &mut self.payment_req)?;
+                },
                 tag => {
                     ::protobuf::rt::read_unknown_or_skip_group(tag, is, self.special_fields.mut_unknown_fields())?;
                 },
@@ -1209,6 +1224,10 @@ impl ::protobuf::Message for StellarSignTx {
         if let Some(v) = self.num_operations {
             my_size += ::protobuf::rt::uint32_size(14, v);
         }
+        if let Some(v) = self.payment_req.as_ref() {
+            let len = v.compute_size();
+            my_size += 1 + ::protobuf::rt::compute_raw_varint64_size(len) + len;
+        }
         my_size += ::protobuf::rt::unknown_fields_size(self.special_fields.unknown_fields());
         self.special_fields.cached_size().set(my_size as u32);
         my_size
@@ -1251,6 +1270,9 @@ impl ::protobuf::Message for StellarSignTx {
         if let Some(v) = self.num_operations {
             os.write_uint32(14, v)?;
         }
+        if let Some(v) = self.payment_req.as_ref() {
+            ::protobuf::rt::write_message_field_with_cached_size(15, v, os)?;
+        }
         os.write_unknown_fields(self.special_fields.unknown_fields())?;
         ::std::result::Result::Ok(())
     }
@@ -1280,6 +1302,7 @@ impl ::protobuf::Message for StellarSignTx {
         self.memo_id = ::std::option::Option::None;
         self.memo_hash = ::std::option::Option::None;
         self.num_operations = ::std::option::Option::None;
+        self.payment_req.clear();
         self.special_fields.clear();
     }
 
@@ -1297,6 +1320,7 @@ impl ::protobuf::Message for StellarSignTx {
             memo_id: ::std::option::Option::None,
             memo_hash: ::std::option::Option::None,
             num_operations: ::std::option::Option::None,
+            payment_req: ::protobuf::MessageField::none(),
             special_fields: ::protobuf::SpecialFields::new(),
         };
         &instance
@@ -6311,108 +6335,110 @@ impl StellarAssetType {
 }
 
 static file_descriptor_proto_data: &'static [u8] = b"\
-    \n\x16messages-stellar.proto\x12\x1ahw.trezor.messages.stellar\"|\n\x0cS\
-    tellarAsset\x12@\n\x04type\x18\x01\x20\x02(\x0e2,.hw.trezor.messages.ste\
-    llar.StellarAssetTypeR\x04type\x12\x12\n\x04code\x18\x02\x20\x01(\tR\x04\
-    code\x12\x16\n\x06issuer\x18\x03\x20\x01(\tR\x06issuer\"o\n\x11StellarGe\
-    tAddress\x12\x1b\n\taddress_n\x18\x01\x20\x03(\rR\x08addressN\x12!\n\x0c\
-    show_display\x18\x02\x20\x01(\x08R\x0bshowDisplay\x12\x1a\n\x08chunkify\
-    \x18\x03\x20\x01(\x08R\x08chunkify\"<\n\x0eStellarAddress\x12\x18\n\x07a\
-    ddress\x18\x01\x20\x02(\tR\x07address\x12\x10\n\x03mac\x18\x02\x20\x01(\
-    \x0cR\x03mac\"\xa6\x04\n\rStellarSignTx\x12\x1b\n\taddress_n\x18\x02\x20\
-    \x03(\rR\x08addressN\x12-\n\x12network_passphrase\x18\x03\x20\x02(\tR\
-    \x11networkPassphrase\x12%\n\x0esource_account\x18\x04\x20\x02(\tR\rsour\
-    ceAccount\x12\x10\n\x03fee\x18\x05\x20\x02(\rR\x03fee\x12'\n\x0fsequence\
-    _number\x18\x06\x20\x02(\x04R\x0esequenceNumber\x12)\n\x10timebounds_sta\
-    rt\x18\x08\x20\x02(\rR\x0ftimeboundsStart\x12%\n\x0etimebounds_end\x18\t\
-    \x20\x02(\rR\rtimeboundsEnd\x12V\n\tmemo_type\x18\n\x20\x02(\x0e29.hw.tr\
-    ezor.messages.stellar.StellarSignTx.StellarMemoTypeR\x08memoType\x12\x1b\
-    \n\tmemo_text\x18\x0b\x20\x01(\tR\x08memoText\x12\x17\n\x07memo_id\x18\
-    \x0c\x20\x01(\x04R\x06memoId\x12\x1b\n\tmemo_hash\x18\r\x20\x01(\x0cR\
-    \x08memoHash\x12%\n\x0enum_operations\x18\x0e\x20\x02(\rR\rnumOperations\
-    \"C\n\x0fStellarMemoType\x12\x08\n\x04NONE\x10\0\x12\x08\n\x04TEXT\x10\
-    \x01\x12\x06\n\x02ID\x10\x02\x12\x08\n\x04HASH\x10\x03\x12\n\n\x06RETURN\
-    \x10\x04\"\x14\n\x12StellarTxOpRequest\"\xc2\x01\n\x10StellarPaymentOp\
-    \x12%\n\x0esource_account\x18\x01\x20\x01(\tR\rsourceAccount\x12/\n\x13d\
-    estination_account\x18\x02\x20\x02(\tR\x12destinationAccount\x12>\n\x05a\
-    sset\x18\x03\x20\x02(\x0b2(.hw.trezor.messages.stellar.StellarAssetR\x05\
-    asset\x12\x16\n\x06amount\x18\x04\x20\x02(\x12R\x06amount\"\x8b\x01\n\
-    \x16StellarCreateAccountOp\x12%\n\x0esource_account\x18\x01\x20\x01(\tR\
-    \rsourceAccount\x12\x1f\n\x0bnew_account\x18\x02\x20\x02(\tR\nnewAccount\
-    \x12)\n\x10starting_balance\x18\x03\x20\x02(\x12R\x0fstartingBalance\"\
-    \xa5\x03\n!StellarPathPaymentStrictReceiveOp\x12%\n\x0esource_account\
-    \x18\x01\x20\x01(\tR\rsourceAccount\x12G\n\nsend_asset\x18\x02\x20\x02(\
-    \x0b2(.hw.trezor.messages.stellar.StellarAssetR\tsendAsset\x12\x19\n\x08\
-    send_max\x18\x03\x20\x02(\x12R\x07sendMax\x12/\n\x13destination_account\
-    \x18\x04\x20\x02(\tR\x12destinationAccount\x12U\n\x11destination_asset\
-    \x18\x05\x20\x02(\x0b2(.hw.trezor.messages.stellar.StellarAssetR\x10dest\
-    inationAsset\x12-\n\x12destination_amount\x18\x06\x20\x02(\x12R\x11desti\
-    nationAmount\x12>\n\x05paths\x18\x07\x20\x03(\x0b2(.hw.trezor.messages.s\
-    tellar.StellarAssetR\x05paths\"\xa2\x03\n\x1eStellarPathPaymentStrictSen\
-    dOp\x12%\n\x0esource_account\x18\x01\x20\x01(\tR\rsourceAccount\x12G\n\n\
-    send_asset\x18\x02\x20\x02(\x0b2(.hw.trezor.messages.stellar.StellarAsse\
-    tR\tsendAsset\x12\x1f\n\x0bsend_amount\x18\x03\x20\x02(\x12R\nsendAmount\
-    \x12/\n\x13destination_account\x18\x04\x20\x02(\tR\x12destinationAccount\
-    \x12U\n\x11destination_asset\x18\x05\x20\x02(\x0b2(.hw.trezor.messages.s\
-    tellar.StellarAssetR\x10destinationAsset\x12'\n\x0fdestination_min\x18\
-    \x06\x20\x02(\x12R\x0edestinationMin\x12>\n\x05paths\x18\x07\x20\x03(\
-    \x0b2(.hw.trezor.messages.stellar.StellarAssetR\x05paths\"\xc2\x02\n\x18\
-    StellarManageSellOfferOp\x12%\n\x0esource_account\x18\x01\x20\x01(\tR\rs\
-    ourceAccount\x12M\n\rselling_asset\x18\x02\x20\x02(\x0b2(.hw.trezor.mess\
-    ages.stellar.StellarAssetR\x0csellingAsset\x12K\n\x0cbuying_asset\x18\
-    \x03\x20\x02(\x0b2(.hw.trezor.messages.stellar.StellarAssetR\x0bbuyingAs\
-    set\x12\x16\n\x06amount\x18\x04\x20\x02(\x12R\x06amount\x12\x17\n\x07pri\
-    ce_n\x18\x05\x20\x02(\rR\x06priceN\x12\x17\n\x07price_d\x18\x06\x20\x02(\
-    \rR\x06priceD\x12\x19\n\x08offer_id\x18\x07\x20\x02(\x04R\x07offerId\"\
-    \xc1\x02\n\x17StellarManageBuyOfferOp\x12%\n\x0esource_account\x18\x01\
-    \x20\x01(\tR\rsourceAccount\x12M\n\rselling_asset\x18\x02\x20\x02(\x0b2(\
-    .hw.trezor.messages.stellar.StellarAssetR\x0csellingAsset\x12K\n\x0cbuyi\
-    ng_asset\x18\x03\x20\x02(\x0b2(.hw.trezor.messages.stellar.StellarAssetR\
-    \x0bbuyingAsset\x12\x16\n\x06amount\x18\x04\x20\x02(\x12R\x06amount\x12\
-    \x17\n\x07price_n\x18\x05\x20\x02(\rR\x06priceN\x12\x17\n\x07price_d\x18\
-    \x06\x20\x02(\rR\x06priceD\x12\x19\n\x08offer_id\x18\x07\x20\x02(\x04R\
-    \x07offerId\"\xae\x02\n\x1fStellarCreatePassiveSellOfferOp\x12%\n\x0esou\
-    rce_account\x18\x01\x20\x01(\tR\rsourceAccount\x12M\n\rselling_asset\x18\
-    \x02\x20\x02(\x0b2(.hw.trezor.messages.stellar.StellarAssetR\x0csellingA\
-    sset\x12K\n\x0cbuying_asset\x18\x03\x20\x02(\x0b2(.hw.trezor.messages.st\
-    ellar.StellarAssetR\x0bbuyingAsset\x12\x16\n\x06amount\x18\x04\x20\x02(\
-    \x12R\x06amount\x12\x17\n\x07price_n\x18\x05\x20\x02(\rR\x06priceN\x12\
-    \x17\n\x07price_d\x18\x06\x20\x02(\rR\x06priceD\"\xdd\x04\n\x13StellarSe\
-    tOptionsOp\x12%\n\x0esource_account\x18\x01\x20\x01(\tR\rsourceAccount\
-    \x12B\n\x1dinflation_destination_account\x18\x02\x20\x01(\tR\x1binflatio\
-    nDestinationAccount\x12\x1f\n\x0bclear_flags\x18\x03\x20\x01(\rR\nclearF\
-    lags\x12\x1b\n\tset_flags\x18\x04\x20\x01(\rR\x08setFlags\x12#\n\rmaster\
-    _weight\x18\x05\x20\x01(\rR\x0cmasterWeight\x12#\n\rlow_threshold\x18\
-    \x06\x20\x01(\rR\x0clowThreshold\x12)\n\x10medium_threshold\x18\x07\x20\
-    \x01(\rR\x0fmediumThreshold\x12%\n\x0ehigh_threshold\x18\x08\x20\x01(\rR\
-    \rhighThreshold\x12\x1f\n\x0bhome_domain\x18\t\x20\x01(\tR\nhomeDomain\
-    \x12b\n\x0bsigner_type\x18\n\x20\x01(\x0e2A.hw.trezor.messages.stellar.S\
-    tellarSetOptionsOp.StellarSignerTypeR\nsignerType\x12\x1d\n\nsigner_key\
-    \x18\x0b\x20\x01(\x0cR\tsignerKey\x12#\n\rsigner_weight\x18\x0c\x20\x01(\
-    \rR\x0csignerWeight\"8\n\x11StellarSignerType\x12\x0b\n\x07ACCOUNT\x10\0\
-    \x12\x0c\n\x08PRE_AUTH\x10\x01\x12\x08\n\x04HASH\x10\x02\"\x93\x01\n\x14\
-    StellarChangeTrustOp\x12%\n\x0esource_account\x18\x01\x20\x01(\tR\rsourc\
-    eAccount\x12>\n\x05asset\x18\x02\x20\x02(\x0b2(.hw.trezor.messages.stell\
-    ar.StellarAssetR\x05asset\x12\x14\n\x05limit\x18\x03\x20\x02(\x04R\x05li\
-    mit\"\xf6\x01\n\x13StellarAllowTrustOp\x12%\n\x0esource_account\x18\x01\
-    \x20\x01(\tR\rsourceAccount\x12'\n\x0ftrusted_account\x18\x02\x20\x02(\t\
-    R\x0etrustedAccount\x12K\n\nasset_type\x18\x03\x20\x02(\x0e2,.hw.trezor.\
-    messages.stellar.StellarAssetTypeR\tassetType\x12\x1d\n\nasset_code\x18\
-    \x04\x20\x01(\tR\tassetCode\x12#\n\ris_authorized\x18\x05\x20\x02(\x08R\
-    \x0cisAuthorized\"o\n\x15StellarAccountMergeOp\x12%\n\x0esource_account\
-    \x18\x01\x20\x01(\tR\rsourceAccount\x12/\n\x13destination_account\x18\
-    \x02\x20\x02(\tR\x12destinationAccount\"d\n\x13StellarManageDataOp\x12%\
-    \n\x0esource_account\x18\x01\x20\x01(\tR\rsourceAccount\x12\x10\n\x03key\
-    \x18\x02\x20\x02(\tR\x03key\x12\x14\n\x05value\x18\x03\x20\x01(\x0cR\x05\
-    value\"W\n\x15StellarBumpSequenceOp\x12%\n\x0esource_account\x18\x01\x20\
-    \x01(\tR\rsourceAccount\x12\x17\n\x07bump_to\x18\x02\x20\x02(\x04R\x06bu\
-    mpTo\"f\n\x1eStellarClaimClaimableBalanceOp\x12%\n\x0esource_account\x18\
-    \x01\x20\x01(\tR\rsourceAccount\x12\x1d\n\nbalance_id\x18\x02\x20\x02(\
-    \x0cR\tbalanceId\"N\n\x0fStellarSignedTx\x12\x1d\n\npublic_key\x18\x01\
-    \x20\x02(\x0cR\tpublicKey\x12\x1c\n\tsignature\x18\x02\x20\x02(\x0cR\tsi\
-    gnature*=\n\x10StellarAssetType\x12\n\n\x06NATIVE\x10\0\x12\r\n\tALPHANU\
-    M4\x10\x01\x12\x0e\n\nALPHANUM12\x10\x02B;\n#com.satoshilabs.trezor.lib.\
-    protobufB\x14TrezorMessageStellar\
+    \n\x16messages-stellar.proto\x12\x1ahw.trezor.messages.stellar\x1a\x15me\
+    ssages-common.proto\x1a\roptions.proto\"|\n\x0cStellarAsset\x12@\n\x04ty\
+    pe\x18\x01\x20\x02(\x0e2,.hw.trezor.messages.stellar.StellarAssetTypeR\
+    \x04type\x12\x12\n\x04code\x18\x02\x20\x01(\tR\x04code\x12\x16\n\x06issu\
+    er\x18\x03\x20\x01(\tR\x06issuer\"o\n\x11StellarGetAddress\x12\x1b\n\tad\
+    dress_n\x18\x01\x20\x03(\rR\x08addressN\x12!\n\x0cshow_display\x18\x02\
+    \x20\x01(\x08R\x0bshowDisplay\x12\x1a\n\x08chunkify\x18\x03\x20\x01(\x08\
+    R\x08chunkify\"<\n\x0eStellarAddress\x12\x18\n\x07address\x18\x01\x20\
+    \x02(\tR\x07address\x12\x10\n\x03mac\x18\x02\x20\x01(\x0cR\x03mac\"\xf8\
+    \x04\n\rStellarSignTx\x12\x1b\n\taddress_n\x18\x02\x20\x03(\rR\x08addres\
+    sN\x12-\n\x12network_passphrase\x18\x03\x20\x02(\tR\x11networkPassphrase\
+    \x12%\n\x0esource_account\x18\x04\x20\x02(\tR\rsourceAccount\x12\x10\n\
+    \x03fee\x18\x05\x20\x02(\rR\x03fee\x12'\n\x0fsequence_number\x18\x06\x20\
+    \x02(\x04R\x0esequenceNumber\x12)\n\x10timebounds_start\x18\x08\x20\x02(\
+    \rR\x0ftimeboundsStart\x12%\n\x0etimebounds_end\x18\t\x20\x02(\rR\rtimeb\
+    oundsEnd\x12V\n\tmemo_type\x18\n\x20\x02(\x0e29.hw.trezor.messages.stell\
+    ar.StellarSignTx.StellarMemoTypeR\x08memoType\x12\x1b\n\tmemo_text\x18\
+    \x0b\x20\x01(\tR\x08memoText\x12\x17\n\x07memo_id\x18\x0c\x20\x01(\x04R\
+    \x06memoId\x12\x1b\n\tmemo_hash\x18\r\x20\x01(\x0cR\x08memoHash\x12%\n\
+    \x0enum_operations\x18\x0e\x20\x02(\rR\rnumOperations\x12P\n\x0bpayment_\
+    req\x18\x0f\x20\x01(\x0b2).hw.trezor.messages.common.PaymentRequestR\npa\
+    ymentReqB\x04\xc8\xf0\x19\x01\"C\n\x0fStellarMemoType\x12\x08\n\x04NONE\
+    \x10\0\x12\x08\n\x04TEXT\x10\x01\x12\x06\n\x02ID\x10\x02\x12\x08\n\x04HA\
+    SH\x10\x03\x12\n\n\x06RETURN\x10\x04\"\x14\n\x12StellarTxOpRequest\"\xc2\
+    \x01\n\x10StellarPaymentOp\x12%\n\x0esource_account\x18\x01\x20\x01(\tR\
+    \rsourceAccount\x12/\n\x13destination_account\x18\x02\x20\x02(\tR\x12des\
+    tinationAccount\x12>\n\x05asset\x18\x03\x20\x02(\x0b2(.hw.trezor.message\
+    s.stellar.StellarAssetR\x05asset\x12\x16\n\x06amount\x18\x04\x20\x02(\
+    \x12R\x06amount\"\x8b\x01\n\x16StellarCreateAccountOp\x12%\n\x0esource_a\
+    ccount\x18\x01\x20\x01(\tR\rsourceAccount\x12\x1f\n\x0bnew_account\x18\
+    \x02\x20\x02(\tR\nnewAccount\x12)\n\x10starting_balance\x18\x03\x20\x02(\
+    \x12R\x0fstartingBalance\"\xa5\x03\n!StellarPathPaymentStrictReceiveOp\
+    \x12%\n\x0esource_account\x18\x01\x20\x01(\tR\rsourceAccount\x12G\n\nsen\
+    d_asset\x18\x02\x20\x02(\x0b2(.hw.trezor.messages.stellar.StellarAssetR\
+    \tsendAsset\x12\x19\n\x08send_max\x18\x03\x20\x02(\x12R\x07sendMax\x12/\
+    \n\x13destination_account\x18\x04\x20\x02(\tR\x12destinationAccount\x12U\
+    \n\x11destination_asset\x18\x05\x20\x02(\x0b2(.hw.trezor.messages.stella\
+    r.StellarAssetR\x10destinationAsset\x12-\n\x12destination_amount\x18\x06\
+    \x20\x02(\x12R\x11destinationAmount\x12>\n\x05paths\x18\x07\x20\x03(\x0b\
+    2(.hw.trezor.messages.stellar.StellarAssetR\x05paths\"\xa2\x03\n\x1eStel\
+    larPathPaymentStrictSendOp\x12%\n\x0esource_account\x18\x01\x20\x01(\tR\
+    \rsourceAccount\x12G\n\nsend_asset\x18\x02\x20\x02(\x0b2(.hw.trezor.mess\
+    ages.stellar.StellarAssetR\tsendAsset\x12\x1f\n\x0bsend_amount\x18\x03\
+    \x20\x02(\x12R\nsendAmount\x12/\n\x13destination_account\x18\x04\x20\x02\
+    (\tR\x12destinationAccount\x12U\n\x11destination_asset\x18\x05\x20\x02(\
+    \x0b2(.hw.trezor.messages.stellar.StellarAssetR\x10destinationAsset\x12'\
+    \n\x0fdestination_min\x18\x06\x20\x02(\x12R\x0edestinationMin\x12>\n\x05\
+    paths\x18\x07\x20\x03(\x0b2(.hw.trezor.messages.stellar.StellarAssetR\
+    \x05paths\"\xc2\x02\n\x18StellarManageSellOfferOp\x12%\n\x0esource_accou\
+    nt\x18\x01\x20\x01(\tR\rsourceAccount\x12M\n\rselling_asset\x18\x02\x20\
+    \x02(\x0b2(.hw.trezor.messages.stellar.StellarAssetR\x0csellingAsset\x12\
+    K\n\x0cbuying_asset\x18\x03\x20\x02(\x0b2(.hw.trezor.messages.stellar.St\
+    ellarAssetR\x0bbuyingAsset\x12\x16\n\x06amount\x18\x04\x20\x02(\x12R\x06\
+    amount\x12\x17\n\x07price_n\x18\x05\x20\x02(\rR\x06priceN\x12\x17\n\x07p\
+    rice_d\x18\x06\x20\x02(\rR\x06priceD\x12\x19\n\x08offer_id\x18\x07\x20\
+    \x02(\x04R\x07offerId\"\xc1\x02\n\x17StellarManageBuyOfferOp\x12%\n\x0es\
+    ource_account\x18\x01\x20\x01(\tR\rsourceAccount\x12M\n\rselling_asset\
+    \x18\x02\x20\x02(\x0b2(.hw.trezor.messages.stellar.StellarAssetR\x0csell\
+    ingAsset\x12K\n\x0cbuying_asset\x18\x03\x20\x02(\x0b2(.hw.trezor.message\
+    s.stellar.StellarAssetR\x0bbuyingAsset\x12\x16\n\x06amount\x18\x04\x20\
+    \x02(\x12R\x06amount\x12\x17\n\x07price_n\x18\x05\x20\x02(\rR\x06priceN\
+    \x12\x17\n\x07price_d\x18\x06\x20\x02(\rR\x06priceD\x12\x19\n\x08offer_i\
+    d\x18\x07\x20\x02(\x04R\x07offerId\"\xae\x02\n\x1fStellarCreatePassiveSe\
+    llOfferOp\x12%\n\x0esource_account\x18\x01\x20\x01(\tR\rsourceAccount\
+    \x12M\n\rselling_asset\x18\x02\x20\x02(\x0b2(.hw.trezor.messages.stellar\
+    .StellarAssetR\x0csellingAsset\x12K\n\x0cbuying_asset\x18\x03\x20\x02(\
+    \x0b2(.hw.trezor.messages.stellar.StellarAssetR\x0bbuyingAsset\x12\x16\n\
+    \x06amount\x18\x04\x20\x02(\x12R\x06amount\x12\x17\n\x07price_n\x18\x05\
+    \x20\x02(\rR\x06priceN\x12\x17\n\x07price_d\x18\x06\x20\x02(\rR\x06price\
+    D\"\xdd\x04\n\x13StellarSetOptionsOp\x12%\n\x0esource_account\x18\x01\
+    \x20\x01(\tR\rsourceAccount\x12B\n\x1dinflation_destination_account\x18\
+    \x02\x20\x01(\tR\x1binflationDestinationAccount\x12\x1f\n\x0bclear_flags\
+    \x18\x03\x20\x01(\rR\nclearFlags\x12\x1b\n\tset_flags\x18\x04\x20\x01(\r\
+    R\x08setFlags\x12#\n\rmaster_weight\x18\x05\x20\x01(\rR\x0cmasterWeight\
+    \x12#\n\rlow_threshold\x18\x06\x20\x01(\rR\x0clowThreshold\x12)\n\x10med\
+    ium_threshold\x18\x07\x20\x01(\rR\x0fmediumThreshold\x12%\n\x0ehigh_thre\
+    shold\x18\x08\x20\x01(\rR\rhighThreshold\x12\x1f\n\x0bhome_domain\x18\t\
+    \x20\x01(\tR\nhomeDomain\x12b\n\x0bsigner_type\x18\n\x20\x01(\x0e2A.hw.t\
+    rezor.messages.stellar.StellarSetOptionsOp.StellarSignerTypeR\nsignerTyp\
+    e\x12\x1d\n\nsigner_key\x18\x0b\x20\x01(\x0cR\tsignerKey\x12#\n\rsigner_\
+    weight\x18\x0c\x20\x01(\rR\x0csignerWeight\"8\n\x11StellarSignerType\x12\
+    \x0b\n\x07ACCOUNT\x10\0\x12\x0c\n\x08PRE_AUTH\x10\x01\x12\x08\n\x04HASH\
+    \x10\x02\"\x93\x01\n\x14StellarChangeTrustOp\x12%\n\x0esource_account\
+    \x18\x01\x20\x01(\tR\rsourceAccount\x12>\n\x05asset\x18\x02\x20\x02(\x0b\
+    2(.hw.trezor.messages.stellar.StellarAssetR\x05asset\x12\x14\n\x05limit\
+    \x18\x03\x20\x02(\x04R\x05limit\"\xf6\x01\n\x13StellarAllowTrustOp\x12%\
+    \n\x0esource_account\x18\x01\x20\x01(\tR\rsourceAccount\x12'\n\x0ftruste\
+    d_account\x18\x02\x20\x02(\tR\x0etrustedAccount\x12K\n\nasset_type\x18\
+    \x03\x20\x02(\x0e2,.hw.trezor.messages.stellar.StellarAssetTypeR\tassetT\
+    ype\x12\x1d\n\nasset_code\x18\x04\x20\x01(\tR\tassetCode\x12#\n\ris_auth\
+    orized\x18\x05\x20\x02(\x08R\x0cisAuthorized\"o\n\x15StellarAccountMerge\
+    Op\x12%\n\x0esource_account\x18\x01\x20\x01(\tR\rsourceAccount\x12/\n\
+    \x13destination_account\x18\x02\x20\x02(\tR\x12destinationAccount\"d\n\
+    \x13StellarManageDataOp\x12%\n\x0esource_account\x18\x01\x20\x01(\tR\rso\
+    urceAccount\x12\x10\n\x03key\x18\x02\x20\x02(\tR\x03key\x12\x14\n\x05val\
+    ue\x18\x03\x20\x01(\x0cR\x05value\"W\n\x15StellarBumpSequenceOp\x12%\n\
+    \x0esource_account\x18\x01\x20\x01(\tR\rsourceAccount\x12\x17\n\x07bump_\
+    to\x18\x02\x20\x02(\x04R\x06bumpTo\"f\n\x1eStellarClaimClaimableBalanceO\
+    p\x12%\n\x0esource_account\x18\x01\x20\x01(\tR\rsourceAccount\x12\x1d\n\
+    \nbalance_id\x18\x02\x20\x02(\x0cR\tbalanceId\"N\n\x0fStellarSignedTx\
+    \x12\x1d\n\npublic_key\x18\x01\x20\x02(\x0cR\tpublicKey\x12\x1c\n\tsigna\
+    ture\x18\x02\x20\x02(\x0cR\tsignature*=\n\x10StellarAssetType\x12\n\n\
+    \x06NATIVE\x10\0\x12\r\n\tALPHANUM4\x10\x01\x12\x0e\n\nALPHANUM12\x10\
+    \x02B;\n#com.satoshilabs.trezor.lib.protobufB\x14TrezorMessageStellar\
 ";
 
 /// `FileDescriptorProto` object which was a source for this generated file
@@ -6429,7 +6455,9 @@ pub fn file_descriptor() -> &'static ::protobuf::reflect::FileDescriptor {
     static file_descriptor: ::protobuf::rt::Lazy<::protobuf::reflect::FileDescriptor> = ::protobuf::rt::Lazy::new();
     file_descriptor.get(|| {
         let generated_file_descriptor = generated_file_descriptor_lazy.get(|| {
-            let mut deps = ::std::vec::Vec::with_capacity(0);
+            let mut deps = ::std::vec::Vec::with_capacity(2);
+            deps.push(super::messages_common::file_descriptor().clone());
+            deps.push(super::options::file_descriptor().clone());
             let mut messages = ::std::vec::Vec::with_capacity(20);
             messages.push(StellarAsset::generated_message_descriptor_data());
             messages.push(StellarGetAddress::generated_message_descriptor_data());
diff --git a/tests/device_tests/stellar/test_stellar.py b/tests/device_tests/stellar/test_stellar.py
index fb7664cd..02d448b4 100644
--- a/tests/device_tests/stellar/test_stellar.py
+++ b/tests/device_tests/stellar/test_stellar.py
@@ -54,17 +54,24 @@ from base64 import b64encode
 
 import pytest
 
-from trezorlib import messages, protobuf, stellar
+from trezorlib import btc, messages, misc, protobuf, stellar
 from trezorlib.debuglink import SessionDebugWrapper as Session
+from trezorlib.exceptions import TrezorFailure
 from trezorlib.tools import parse_path
 
 from ...common import parametrize_using_common_fixtures
 from ...input_flows import InputFlowShowAddressQRCode
+from ..payment_req import (
+    CoinPurchaseMemo,
+    RefundMemo,
+    TextDetailsMemo,
+    make_payment_request,
+)
 
 pytestmark = [pytest.mark.altcoin, pytest.mark.stellar]
 
 
-def parameters_to_proto(parameters):
+def parameters_to_proto(session, parameters):
     tx_data = parameters["tx"]
     ops_data = parameters["operations"]
 
@@ -72,6 +79,43 @@ def parameters_to_proto(parameters):
     tx_data["network_passphrase"] = parameters["network_passphrase"]
     tx_data["num_operations"] = len(ops_data)
 
+    if parameters.get("payment_request"):
+        purchase_memo = CoinPurchaseMemo(
+            amount="0.00001 BTC",
+            coin_name="Bitcoin",
+            slip44=0,
+            address_n=parse_path("m/44h/0h/0h/0/0"),
+        )
+        purchase_memo.address_resp = btc.get_authenticated_address(
+            session, purchase_memo.coin_name, purchase_memo.address_n
+        )
+        refund_memo = RefundMemo(address_n=parse_path("m/44h/148h/1h"))
+        refund_memo.address_resp = stellar.get_authenticated_address(
+            session, refund_memo.address_n, False
+        )
+        text_details_memo = TextDetailsMemo(
+            title="Are you sure...",
+            text="... you want to swap your valuable tokens for some sats?",
+        )
+        memos = [purchase_memo, refund_memo, text_details_memo]
+        nonce = misc.get_nonce(session)
+        payment_request = make_payment_request(
+            session,
+            recipient_name="trezor.io",
+            slip44=148,
+            outputs=[
+                (
+                    o["amount"],
+                    o["destination_account"],
+                )
+                for o in parameters["operations"]
+            ],
+            memos=memos,
+            nonce=nonce,
+        )
+    else:
+        payment_request = None
+
     def make_op(operation_data):
         type_name = operation_data["_message_type"]
         assert type_name.startswith("Stellar") and type_name.endswith("Op")
@@ -79,23 +123,38 @@ def parameters_to_proto(parameters):
         return protobuf.dict_to_proto(cls, operation_data)
 
     tx = protobuf.dict_to_proto(messages.StellarSignTx, tx_data)
+    if payment_request:
+        tx.payment_req = payment_request
     operations = [make_op(op) for op in ops_data]
     return tx, operations
 
 
 @parametrize_using_common_fixtures("stellar/sign_tx.json")
 def test_sign_tx(session: Session, parameters, result):
-    tx, operations = parameters_to_proto(parameters)
-    response = stellar.sign_tx(
-        session, tx, operations, tx.address_n, tx.network_passphrase
-    )
-    assert response.public_key.hex() == result["public_key"]
-    assert b64encode(response.signature).decode() == result["signature"]
+    tx, operations = parameters_to_proto(session, parameters)
+
+    if "signature" in result:
+        response = stellar.sign_tx(
+            session,
+            tx,
+            operations,
+            tx.address_n,
+            tx.network_passphrase,
+        )
+        assert response.public_key.hex() == result["public_key"]
+        assert b64encode(response.signature).decode() == result["signature"]
+    elif "error_message" in result:
+        with pytest.raises(TrezorFailure, match=result["error_message"]):
+            stellar.sign_tx(
+                session, tx, operations, tx.address_n, tx.network_passphrase
+            )
+    else:
+        assert False, "Invalid expected result"
 
 
 @parametrize_using_common_fixtures("stellar/sign_tx.json")
 @pytest.mark.skipif(not stellar.HAVE_STELLAR_SDK, reason="requires Stellar SDK")
-def test_xdr(parameters, result):
+def test_xdr(session: Session, parameters, result):
     from stellar_sdk import TransactionEnvelope
 
     envelope = TransactionEnvelope.from_xdr(
@@ -103,7 +162,7 @@ def test_xdr(parameters, result):
     )
     tx, operations = stellar.from_envelope(envelope)
     tx.address_n = parse_path(parameters["address_n"])
-    tx_expected, operations_expected = parameters_to_proto(parameters)
+    tx_expected, operations_expected = parameters_to_proto(session, parameters)
     assert tx == tx_expected
     for expected, actual in zip(operations_expected, operations):
         assert expected == actual
diff --git a/tests/ui_tests/fixtures.json b/tests/ui_tests/fixtures.json
index 44247d3e..3c29f05e 100644
--- a/tests/ui_tests/fixtures.json
+++ b/tests/ui_tests/fixtures.json
@@ -2441,7 +2441,10 @@
 "T2T1_cs_stellar-test_stellar.py::test_sign_tx[StellarPathPaymentStrictSendOp]": "b462e54e36a4ffd1a1d94f0d94cf20a9b89d4b8e067250ac0c00ea567b0a2f52",
 "T2T1_cs_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset12]": "6d238203bba7762424a175a19ee0aa5aa87ed353e7f6f3fc0e295b6372e1e30c",
 "T2T1_cs_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset4]": "88a73348b8eb0ab48b01e959d7d176a35af2da8520e2a7cc19cd4df9fd6914fb",
+"T2T1_cs_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-memo-and-payment-request]": "33bbbf6c914fb43278baf6f38c7de5cf823ae64745fb52c1e4e63ac8220fd0af",
 "T2T1_cs_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-native_asset]": "37e1fa098b76186653e0bab85b1c176ab171b32c34a90b4454c335b3529649af",
+"T2T1_cs_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-payment-request-multiple-operations]": "30a55067210123f6f9dbf09d3b43dc9785d93fa719c88a7b813b6fcfe3ecb29b",
+"T2T1_cs_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-payment-request]": "fb0c62696a89d0890023d02aa06e168b4d33c932013d44790143524cadda592b",
 "T2T1_cs_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-all]": "ba671e7a110f6373cc3315594a38ae7fe3967e77c8b764d728a5a237f35d0e8c",
 "T2T1_cs_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-one]": "dd619840369281686e186a831a953df4f8f8645b35bbf03f6070437e88114e83",
 "T2T1_cs_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-some]": "de9a994494ea04eb86b187b5a78c6d2f5a28b54245e9134520246fb1d38fcdd4",
@@ -3980,7 +3983,10 @@
 "T2T1_de_stellar-test_stellar.py::test_sign_tx[StellarPathPaymentStrictSendOp]": "3d912c8148e0155b19331fb0c9533057e3d05f88963e7ed70745e9b81c6d3f59",
 "T2T1_de_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset12]": "0ae328a5cb57dba3ff9200682242c0f49158b360fb77de25999a939d5d2fbbb3",
 "T2T1_de_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset4]": "515bb2ed06cfa4b9f5f2c58ab2df8236329444372a9a57c2f237018a98442e19",
+"T2T1_de_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-memo-and-payment-request]": "fb357a023a04f411942bb02749389f373e203caf2179e1a421dac9de9f8a8ed2",
 "T2T1_de_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-native_asset]": "06f2678b01690883d6eaf957d1099745f431470e8a1a403a18d916d5c65633b5",
+"T2T1_de_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-payment-request-multiple-operations]": "2d872ba7641dbb338c568748a379dad5590695b6b0f87edbd3bca3544694ccb1",
+"T2T1_de_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-payment-request]": "44c1b4b615cd6cfde3de613b32e42c08b451a798305f89e246088fdb8b8bf6d3",
 "T2T1_de_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-all]": "8c1103ba51bbcf99c20fa06368df0c86fa53d121b2ed6d71f1b7353608b3b7e4",
 "T2T1_de_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-one]": "5a323557efc6bcbfe522b152652abfaa045865abfb2aea0e4913090d9dd62e34",
 "T2T1_de_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-some]": "9b630210f14fa2d50e6716622bf456fae168ff8efcfca8cbc01111fc3b19c6ad",
@@ -5519,7 +5525,10 @@
 "T2T1_en_stellar-test_stellar.py::test_sign_tx[StellarPathPaymentStrictSendOp]": "2808b541c3eba206b9413a2c0b4e6ceba7d8e5d94ef10d34dfb21a65d5ba4eb1",
 "T2T1_en_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset12]": "d31e90d0c50b553a95ed3e607ff2f1bfd85c216b842462713e55d14d01b02b68",
 "T2T1_en_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset4]": "b429cc5d4ee40773a5b413e5984804131c145313b8152ce0fe3f4c9be2006422",
+"T2T1_en_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-memo-and-payment-request]": "31dc5c1b267afc5fbe6eac0adf65473e2a04558dd1e835eb08288de7e80c6831",
 "T2T1_en_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-native_asset]": "c436b0ea803e0f2e784f0885dd6dae79768c0f85928467551cb29e089a17c749",
+"T2T1_en_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-payment-request-multiple-operations]": "daa329291abe80db036c053e4f5dbd40119d04b3dc5afdb503e91377e98ea20b",
+"T2T1_en_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-payment-request]": "1929c304cc59420321294c21fcd510ce311b5f785ccaba877d8526b2ac2e6e7a",
 "T2T1_en_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-all]": "0f330d9c089ff3b09542a4775daf15625c0a9933df59a84c3c0ecdf5f547df02",
 "T2T1_en_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-one]": "54ed2f3dbaa32ed479361e562bc42e86663190e173e02970985e9f768712ec4f",
 "T2T1_en_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-some]": "b7149560532be8a98209ed107c82440162dabbd235989f13d67fc90dda27e4bf",
@@ -7076,7 +7085,10 @@
 "T2T1_es_stellar-test_stellar.py::test_sign_tx[StellarPathPaymentStrictSendOp]": "1e836c230bc8b7460e3c1aee659ba0b022ce0b84d732c412601434d2f9809237",
 "T2T1_es_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset12]": "39967cb9e2621432391084afa53eb4a8b2be8f09dacd7058601ea74845df99ff",
 "T2T1_es_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset4]": "902aa0caf6a1d8ef9fa316805f5ee80d39516dddcf844d935b5ad57dec2b8ebc",
+"T2T1_es_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-memo-and-payment-request]": "0756264ce7cf60a848f03026e1e0b3043f9e43662956906a578da2056351ee6d",
 "T2T1_es_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-native_asset]": "481b81501bbe31805db25f30d2de8009d63644c0bfea50b2c19bee930bac4978",
+"T2T1_es_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-payment-request-multiple-operations]": "1d91ef002b68a78dc1de692caf48d78a002f6e565a57a266eeada0f448cd0da6",
+"T2T1_es_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-payment-request]": "99cbeb1fb078fb95dd26ca97987681b6250d2f6dc05ed9fd989675c41d1825db",
 "T2T1_es_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-all]": "e98b1fb81193f67c32b9b48c0c1c77083461e4a1a4d42baada58c5840647d221",
 "T2T1_es_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-one]": "10b712ffc6626287af5fa0ceab8779f98f1659322d7b8e5da255cd43e9eab28e",
 "T2T1_es_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-some]": "07c6b56ff9101b7bc34d2022bb5a10b5a691584fe35f53a42e60de6c67b298a2",
@@ -8615,7 +8627,10 @@
 "T2T1_fr_stellar-test_stellar.py::test_sign_tx[StellarPathPaymentStrictSendOp]": "36b3127f96c0b9aff211ba51e8d2f4844cf048df245f386c34fb757bf9b3bf1c",
 "T2T1_fr_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset12]": "21d9ad3958269d628493c6f826b11202a99b916379a72e7ba923fcfedff930c7",
 "T2T1_fr_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset4]": "7fc0c718dee14dac5a3a76a343f34816b13026901709344eb1754d25c3805e03",
+"T2T1_fr_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-memo-and-payment-request]": "c5ed2242e20b9d52ab2d2760a142d8f71bb0b5b4e1b7b145c4e81f48385ee84f",
 "T2T1_fr_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-native_asset]": "03c865167d69671bfe19aadd5c57cfa1ffc182bf4855aea5604dc4167a1df8ce",
+"T2T1_fr_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-payment-request-multiple-operations]": "39b677adaa42b9595eeeba8d0bf3ced8bb6e5aa4bfeeae2d57e8025c76a6d97d",
+"T2T1_fr_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-payment-request]": "34d6a33a61bb0f43d2c2ecedf51edd1a7d1a07378bc4876dabffad0f94077953",
 "T2T1_fr_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-all]": "14337eaaad381cd657892cedff765da6ca9e1e41c994999febb61b7a6f0f5a87",
 "T2T1_fr_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-one]": "30a96dc444d9627cce80c0d4a0b683601888b6066f8bf4be6b72f5bdd8201a51",
 "T2T1_fr_stellar-test_stellar.py::test_sign_tx[StellarSetOptionsOp-some]": "d63d07727180fd30e9e0f1ed06ee341a7ecd4e7eb42fb3baaec0ca73a335f951",
@@ -10154,7 +10169,10 @@
 "T2T1_pt_stellar-test_stellar.py::test_sign_tx[StellarPathPaymentStrictSendOp]": "f826ff8c6b97b5212e5d958c1154044a3bd2847797e2958b58c08dd2665ce93d",
 "T2T1_pt_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset12]": "71873faac7e4bbf36dd1e2ebbdd58746a82207cc417e5a0ea23554db582c8aa9",
 "T2T1_pt_stellar-test_stellar.py::test_sign_tx[StellarPaymentOp-asset4]": "470e68c7c9aca40af16cfa8710c03a2abd38bd1e51fc0f0fcc38a82a383f2bbe",
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