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Add FFI session event log fuzz target #2005

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Merged
benalleng merged 2 commits into from
Oct 28, 2026
Merged

Add FFI session event log fuzz target #2005

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7a6fa16
Add FFI session event log fuzz target
caarloshenriq Oct 22, 2026
190a31a
Add event bank and structural fuzz mutators
caarloshenriq Oct 26, 2026
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2,834 changes: 1,558 additions & 1,276 deletions Cargo-minimal.lock
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2 changes: 2 additions & 0 deletions Cargo-recent.lock
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Original file line number Diff line number Diff line change
Expand Up @@ -2550,6 +2550,8 @@ dependencies = [
"bitcoin-ohttp",
"libfuzzer-sys",
"payjoin",
"payjoin-ffi",
"serde_json",
]

[[package]]
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1 change: 1 addition & 0 deletions flake.nix
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Expand Up @@ -116,6 +116,7 @@
|| (builtins.match ".*payjoin-mailroom/README\\.md$" path != null)
|| (builtins.match ".*\\.mmdb$" path != null)
|| (builtins.match ".*\\.html$" path != null)
|| (builtins.match ".*fuzz_targets/.*\\.jsonl$" path != null)
|| (craneLibVersions.msrv.filterCargoSources path type);
name = "source";
};
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10 changes: 10 additions & 0 deletions fuzz/Cargo.toml
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Expand Up @@ -22,6 +22,10 @@ payjoin = { path = "../payjoin", default-features = false, features = [
"v1",
"v2",
] }
payjoin-ffi = { path = "../payjoin-ffi" }
# Without float_roundtrip, serde_json parses floats inexactly, so a float in
# a replyable error's extra map drifts on every to_json/from_json cycle.
serde_json = { version = "1.0.149", features = ["float_roundtrip"] }

[[bin]]
name = "uri-deserialize-pjuri"
Expand Down Expand Up @@ -70,3 +74,9 @@ name = "receiver-v2"
path = "fuzz_targets/receiver/v2.rs"
doc = false
bench = false

[[bin]]
name = "ffi-session-event-log"
path = "fuzz_targets/ffi/session_event_log.rs"
doc = false
bench = false
13 changes: 13 additions & 0 deletions fuzz/fuzz_targets/ffi/seeds/events.jsonl
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{"RetrievedOriginalPayload":{"original":{"psbt":{"unsigned_tx":{"version":2,"lock_time":211,"input":[{"previous_output":"833b085de288cda6ff614c6e8655f61e7ae4f84604a2751998dc25a0d1ba278f:0","script_sig":"","sequence":4294967294,"witness":[]}],"output":[{"value":95983068,"script_pubkey":"a9141de849f069d274150e3afeae8d72eb5a6b09443087"},{"value":2000000,"script_pubkey":"a914774096dbcf486743c22f4347e9b469febe8b677a87"}]},"version":0,"xpub":{},"proprietary":[],"unknown":[],"inputs":[{"non_witness_utxo":null,"witness_utxo":{"value":97983400,"script_pubkey":"a914de4e1e9061ca59135b035ad5e6d47990454354d087"},"partial_sigs":{},"sighash_type":null,"redeem_script":null,"witness_script":null,"bip32_derivation":[],"final_script_sig":"160014c78a45725355828d5658074dd5260d5fcb698530","final_script_witness":["304402207c43e03a75ea7e473f76be1cb6ea54f4023667e0f44b8bc05ff6aa01fc2324d302203ff463d8f599de01235244e584344d010d205f04ceeedf67f95d78a59ea8963501","03159ac01aa0d58754c4b4d8b7d349ed1edfcf0b362b4f6b55106723a2858f8516"],"ripemd160_preimages":{},"sha256_preimages":{},"hash160_preimages":{},"hash256_preimages":{},"tap_key_sig":null,"tap_script_sigs":[],"tap_scripts":[],"tap_key_origins":[],"tap_internal_key":null,"tap_merkle_root":null,"proprietary":[],"unknown":[]}],"outputs":[{"redeem_script":"001446f61a2bba73828ee585b4a5fc37946a7d8cc514","witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]},{"redeem_script":null,"witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]}]},"params":{"v":1,"output_substitution":"Enabled","additional_fee_contribution":[182,0],"min_fee_rate":250}},"reply_key":null}}
{"GotReplyableError":{"error_code":"Unavailable","message":"Receiver error","extra":{}}}
{"GotReplyableError":{"error_code":"NotEnoughMoney","message":"Receiver error","extra":{}}}
{"GotReplyableError":{"error_code":"VersionUnsupported","message":"Receiver error","extra":{}}}
{"GotReplyableError":{"error_code":"OriginalPsbtRejected","message":"Receiver error","extra":{}}}
{"GotReplyableError":{"error_code":"OriginalPsbtRejected","message":"","extra":{"supported":[1,2]}}}
"Cancelled"
"ProtocolFailed"
{"Closed":{"Success":"0000000000000000000000000000000000000000000000000000000000000000"}}
{"Closed":"Aborted"}
{"Closed":"FallbackBroadcasted"}
{"Closed":{"Unrecognized":"0000000000000000000000000000000000000000000000000000000000000000"}}
{"Cancelled":[]}
12 changes: 12 additions & 0 deletions fuzz/fuzz_targets/ffi/seeds/receiver.jsonl
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@@ -0,0 +1,12 @@
{"Created":{"address":"tb1q6d3a2w975yny0asuvd9a67ner4nks58ff0q8g4","directory":"https://example.com/","ohttp_keys":[1,0,22,4,49,201,65,129,251,247,128,36,159,34,170,43,131,131,10,85,25,245,236,35,252,37,128,98,22,235,48,68,122,8,134,133,12,23,164,215,191,143,99,200,11,214,16,10,31,15,91,223,101,248,218,98,90,235,190,123,14,75,237,98,32,13,77,94,0,4,0,1,0,3],"expiration":4102444800,"amount":null,"receiver_key":[[55,181,82,181,118,112,72,22,165,165,27,49,174,138,173,154,94,222,82,73,223,101,59,62,77,184,180,205,246,246,71,92],[4,169,112,179,223,102,152,248,70,179,203,202,47,218,92,121,173,239,35,126,66,223,96,202,36,252,93,204,223,174,107,245,243,121,135,94,243,11,133,76,46,112,47,231,239,225,227,244,123,81,171,166,150,132,192,70,169,147,114,34,202,177,177,11,236]],"reply_key":null,"max_fee_rate":250}}
{"RetrievedOriginalPayload":{"original":{"psbt":{"unsigned_tx":{"version":2,"lock_time":211,"input":[{"previous_output":"833b085de288cda6ff614c6e8655f61e7ae4f84604a2751998dc25a0d1ba278f:0","script_sig":"","sequence":4294967294,"witness":[]}],"output":[{"value":95983068,"script_pubkey":"a9141de849f069d274150e3afeae8d72eb5a6b09443087"},{"value":2000000,"script_pubkey":"a914774096dbcf486743c22f4347e9b469febe8b677a87"}]},"version":0,"xpub":{},"proprietary":[],"unknown":[],"inputs":[{"non_witness_utxo":null,"witness_utxo":{"value":97983400,"script_pubkey":"a914de4e1e9061ca59135b035ad5e6d47990454354d087"},"partial_sigs":{},"sighash_type":null,"redeem_script":null,"witness_script":null,"bip32_derivation":[],"final_script_sig":"160014c78a45725355828d5658074dd5260d5fcb698530","final_script_witness":["304402207c43e03a75ea7e473f76be1cb6ea54f4023667e0f44b8bc05ff6aa01fc2324d302203ff463d8f599de01235244e584344d010d205f04ceeedf67f95d78a59ea8963501","03159ac01aa0d58754c4b4d8b7d349ed1edfcf0b362b4f6b55106723a2858f8516"],"ripemd160_preimages":{},"sha256_preimages":{},"hash160_preimages":{},"hash256_preimages":{},"tap_key_sig":null,"tap_script_sigs":[],"tap_scripts":[],"tap_key_origins":[],"tap_internal_key":null,"tap_merkle_root":null,"proprietary":[],"unknown":[]}],"outputs":[{"redeem_script":"001446f61a2bba73828ee585b4a5fc37946a7d8cc514","witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]},{"redeem_script":null,"witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]}]},"params":{"v":1,"output_substitution":"Enabled","additional_fee_contribution":[182,0],"min_fee_rate":250}},"reply_key":[4,194,221,118,65,156,207,82,35,217,201,43,116,24,169,42,61,39,244,255,112,83,209,162,36,150,230,77,40,133,173,247,186,16,202,172,58,122,210,166,77,90,183,98,94,37,82,127,92,242,127,14,208,130,137,57,186,17,229,87,40,223,13,196,243]}}
{"CheckedBroadcastSuitability":[]}
{"CheckedInputsNotOwned":[]}
{"CheckedNoInputsSeenBefore":[]}
{"IdentifiedReceiverOutputs":[0,1]}
{"CommittedOutputs":{"outputs":[{"value":95983068,"script_pubkey":"a9141de849f069d274150e3afeae8d72eb5a6b09443087"},{"value":2000000,"script_pubkey":"a914774096dbcf486743c22f4347e9b469febe8b677a87"}],"change_vout":0}}
{"CommittedInputs":{"receiver_inputs":[],"payjoin_psbt":{"unsigned_tx":{"version":2,"lock_time":211,"input":[{"previous_output":"833b085de288cda6ff614c6e8655f61e7ae4f84604a2751998dc25a0d1ba278f:0","script_sig":"","sequence":4294967294,"witness":[]}],"output":[{"value":95983068,"script_pubkey":"a9141de849f069d274150e3afeae8d72eb5a6b09443087"},{"value":2000000,"script_pubkey":"a914774096dbcf486743c22f4347e9b469febe8b677a87"}]},"version":0,"xpub":{},"proprietary":[],"unknown":[],"inputs":[{"non_witness_utxo":null,"witness_utxo":{"value":97983400,"script_pubkey":"a914de4e1e9061ca59135b035ad5e6d47990454354d087"},"partial_sigs":{},"sighash_type":null,"redeem_script":null,"witness_script":null,"bip32_derivation":[],"final_script_sig":"160014c78a45725355828d5658074dd5260d5fcb698530","final_script_witness":["304402207c43e03a75ea7e473f76be1cb6ea54f4023667e0f44b8bc05ff6aa01fc2324d302203ff463d8f599de01235244e584344d010d205f04ceeedf67f95d78a59ea8963501","03159ac01aa0d58754c4b4d8b7d349ed1edfcf0b362b4f6b55106723a2858f8516"],"ripemd160_preimages":{},"sha256_preimages":{},"hash160_preimages":{},"hash256_preimages":{},"tap_key_sig":null,"tap_script_sigs":[],"tap_scripts":[],"tap_key_origins":[],"tap_internal_key":null,"tap_merkle_root":null,"proprietary":[],"unknown":[]}],"outputs":[{"redeem_script":"001446f61a2bba73828ee585b4a5fc37946a7d8cc514","witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]},{"redeem_script":null,"witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]}]}}}
{"AppliedFeeRange":{"original_psbt":{"unsigned_tx":{"version":2,"lock_time":211,"input":[{"previous_output":"833b085de288cda6ff614c6e8655f61e7ae4f84604a2751998dc25a0d1ba278f:0","script_sig":"","sequence":4294967294,"witness":[]}],"output":[{"value":95983068,"script_pubkey":"a9141de849f069d274150e3afeae8d72eb5a6b09443087"},{"value":2000000,"script_pubkey":"a914774096dbcf486743c22f4347e9b469febe8b677a87"}]},"version":0,"xpub":{},"proprietary":[],"unknown":[],"inputs":[{"non_witness_utxo":null,"witness_utxo":{"value":97983400,"script_pubkey":"a914de4e1e9061ca59135b035ad5e6d47990454354d087"},"partial_sigs":{},"sighash_type":null,"redeem_script":null,"witness_script":null,"bip32_derivation":[],"final_script_sig":"160014c78a45725355828d5658074dd5260d5fcb698530","final_script_witness":["304402207c43e03a75ea7e473f76be1cb6ea54f4023667e0f44b8bc05ff6aa01fc2324d302203ff463d8f599de01235244e584344d010d205f04ceeedf67f95d78a59ea8963501","03159ac01aa0d58754c4b4d8b7d349ed1edfcf0b362b4f6b55106723a2858f8516"],"ripemd160_preimages":{},"sha256_preimages":{},"hash160_preimages":{},"hash256_preimages":{},"tap_key_sig":null,"tap_script_sigs":[],"tap_scripts":[],"tap_key_origins":[],"tap_internal_key":null,"tap_merkle_root":null,"proprietary":[],"unknown":[]}],"outputs":[{"redeem_script":"001446f61a2bba73828ee585b4a5fc37946a7d8cc514","witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]},{"redeem_script":null,"witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]}]},"payjoin_psbt":{"unsigned_tx":{"version":2,"lock_time":211,"input":[{"previous_output":"833b085de288cda6ff614c6e8655f61e7ae4f84604a2751998dc25a0d1ba278f:0","script_sig":"","sequence":4294967294,"witness":[]}],"output":[{"value":95983068,"script_pubkey":"a9141de849f069d274150e3afeae8d72eb5a6b09443087"},{"value":2000000,"script_pubkey":"a914774096dbcf486743c22f4347e9b469febe8b677a87"}]},"version":0,"xpub":{},"proprietary":[],"unknown":[],"inputs":[{"non_witness_utxo":null,"witness_utxo":{"value":97983400,"script_pubkey":"a914de4e1e9061ca59135b035ad5e6d47990454354d087"},"partial_sigs":{},"sighash_type":null,"redeem_script":null,"witness_script":null,"bip32_derivation":[],"final_script_sig":"160014c78a45725355828d5658074dd5260d5fcb698530","final_script_witness":["304402207c43e03a75ea7e473f76be1cb6ea54f4023667e0f44b8bc05ff6aa01fc2324d302203ff463d8f599de01235244e584344d010d205f04ceeedf67f95d78a59ea8963501","03159ac01aa0d58754c4b4d8b7d349ed1edfcf0b362b4f6b55106723a2858f8516"],"ripemd160_preimages":{},"sha256_preimages":{},"hash160_preimages":{},"hash256_preimages":{},"tap_key_sig":null,"tap_script_sigs":[],"tap_scripts":[],"tap_key_origins":[],"tap_internal_key":null,"tap_merkle_root":null,"proprietary":[],"unknown":[]}],"outputs":[{"redeem_script":"001446f61a2bba73828ee585b4a5fc37946a7d8cc514","witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]},{"redeem_script":null,"witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]}]}}}
{"FinalizedProposal":{"unsigned_tx":{"version":2,"lock_time":211,"input":[{"previous_output":"833b085de288cda6ff614c6e8655f61e7ae4f84604a2751998dc25a0d1ba278f:0","script_sig":"","sequence":4294967294,"witness":[]}],"output":[{"value":95983068,"script_pubkey":"a9141de849f069d274150e3afeae8d72eb5a6b09443087"},{"value":2000000,"script_pubkey":"a914774096dbcf486743c22f4347e9b469febe8b677a87"}]},"version":0,"xpub":{},"proprietary":[],"unknown":[],"inputs":[{"non_witness_utxo":null,"witness_utxo":{"value":97983400,"script_pubkey":"a914de4e1e9061ca59135b035ad5e6d47990454354d087"},"partial_sigs":{},"sighash_type":null,"redeem_script":null,"witness_script":null,"bip32_derivation":[],"final_script_sig":null,"final_script_witness":null,"ripemd160_preimages":{},"sha256_preimages":{},"hash160_preimages":{},"hash256_preimages":{},"tap_key_sig":null,"tap_script_sigs":[],"tap_scripts":[],"tap_key_origins":[],"tap_internal_key":null,"tap_merkle_root":null,"proprietary":[],"unknown":[]}],"outputs":[{"redeem_script":null,"witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]},{"redeem_script":null,"witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]}]}}
{"PostedPayjoinProposal":[]}
{"Closed":"PayjoinProposalSent"}
3 changes: 3 additions & 0 deletions fuzz/fuzz_targets/ffi/seeds/sender.jsonl
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{"Created":{"pj_param":{"directory":"http://localhost:1234/","id":[49,50,51,52,53,54,55,48],"expiration":4102444800,"ohttp_keys":[1,0,22,4,49,201,65,129,251,247,128,36,159,34,170,43,131,131,10,85,25,245,236,35,252,37,128,98,22,235,48,68,122,8,134,133,12,23,164,215,191,143,99,200,11,214,16,10,31,15,91,223,101,248,218,98,90,235,190,123,14,75,237,98,32,13,77,94,0,4,0,1,0,3],"receiver_pubkey":[4,161,64,242,16,24,241,29,3,216,62,254,126,167,100,162,188,179,218,115,162,221,11,235,107,182,164,58,47,212,222,33,217,155,203,208,164,170,211,200,93,206,28,93,56,108,234,35,83,16,164,8,165,210,57,150,42,198,198,124,234,19,167,95,26]},"psbt_ctx":{"original_psbt":{"unsigned_tx":{"version":2,"lock_time":211,"input":[{"previous_output":"833b085de288cda6ff614c6e8655f61e7ae4f84604a2751998dc25a0d1ba278f:0","script_sig":"","sequence":4294967294,"witness":[]}],"output":[{"value":95983068,"script_pubkey":"a9141de849f069d274150e3afeae8d72eb5a6b09443087"},{"value":2000000,"script_pubkey":"a914774096dbcf486743c22f4347e9b469febe8b677a87"}]},"version":0,"xpub":{},"proprietary":[],"unknown":[],"inputs":[{"non_witness_utxo":null,"witness_utxo":{"value":97983400,"script_pubkey":"a914de4e1e9061ca59135b035ad5e6d47990454354d087"},"partial_sigs":{},"sighash_type":null,"redeem_script":null,"witness_script":null,"bip32_derivation":[],"final_script_sig":"160014c78a45725355828d5658074dd5260d5fcb698530","final_script_witness":["304402207c43e03a75ea7e473f76be1cb6ea54f4023667e0f44b8bc05ff6aa01fc2324d302203ff463d8f599de01235244e584344d010d205f04ceeedf67f95d78a59ea8963501","03159ac01aa0d58754c4b4d8b7d349ed1edfcf0b362b4f6b55106723a2858f8516"],"ripemd160_preimages":{},"sha256_preimages":{},"hash160_preimages":{},"hash256_preimages":{},"tap_key_sig":null,"tap_script_sigs":[],"tap_scripts":[],"tap_key_origins":[],"tap_internal_key":null,"tap_merkle_root":null,"proprietary":[],"unknown":[]}],"outputs":[{"redeem_script":"001446f61a2bba73828ee585b4a5fc37946a7d8cc514","witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]},{"redeem_script":null,"witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]}]},"output_substitution":"Enabled","fee_contribution":null,"min_fee_rate":0,"payee":"00"},"reply_key":[143,196,10,130,123,27,150,75,66,191,178,182,234,236,192,100,107,225,134,28,184,185,244,149,167,160,53,243,112,59,31,1]}}
{"PostedOriginalPsbt":[]}
{"Closed":{"Success":{"unsigned_tx":{"version":2,"lock_time":211,"input":[{"previous_output":"833b085de288cda6ff614c6e8655f61e7ae4f84604a2751998dc25a0d1ba278f:0","script_sig":"","sequence":4294967294,"witness":[]}],"output":[{"value":95983068,"script_pubkey":"a9141de849f069d274150e3afeae8d72eb5a6b09443087"},{"value":2000000,"script_pubkey":"a914774096dbcf486743c22f4347e9b469febe8b677a87"}]},"version":0,"xpub":{},"proprietary":[],"unknown":[],"inputs":[{"non_witness_utxo":null,"witness_utxo":{"value":97983400,"script_pubkey":"a914de4e1e9061ca59135b035ad5e6d47990454354d087"},"partial_sigs":{},"sighash_type":null,"redeem_script":null,"witness_script":null,"bip32_derivation":[],"final_script_sig":"160014c78a45725355828d5658074dd5260d5fcb698530","final_script_witness":["304402207c43e03a75ea7e473f76be1cb6ea54f4023667e0f44b8bc05ff6aa01fc2324d302203ff463d8f599de01235244e584344d010d205f04ceeedf67f95d78a59ea8963501","03159ac01aa0d58754c4b4d8b7d349ed1edfcf0b362b4f6b55106723a2858f8516"],"ripemd160_preimages":{},"sha256_preimages":{},"hash160_preimages":{},"hash256_preimages":{},"tap_key_sig":null,"tap_script_sigs":[],"tap_scripts":[],"tap_key_origins":[],"tap_internal_key":null,"tap_merkle_root":null,"proprietary":[],"unknown":[]}],"outputs":[{"redeem_script":"001446f61a2bba73828ee585b4a5fc37946a7d8cc514","witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]},{"redeem_script":null,"witness_script":null,"bip32_derivation":[],"tap_internal_key":null,"tap_tree":null,"tap_key_origins":[],"proprietary":[],"unknown":[]}]}}}
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