internal: Add basic simnet xmr swap.

.gitignore

@@ -49,3 +49,5 @@ client/cmd/translationsreport/translationsreport
 client/cmd/translationsreport/worksheets
 server/cmd/dexadm/dexadm
 server/cmd/geogame/geogame
+internal/libsecp256k1/secp256k1
+internal/cmd/xmrswap/xmrswap

dex/testing/xmr/README.md

@@ -0,0 +1,244 @@
+# Monero Development Harness
+
+Monero development Harness - documentation and notes
+
+## Useful Info
+
+Monero is very different than btc in that it does not provide a single rpc
+tool like `bitcoin-cli` but rather a set of json 2.0 & other older json apis
+which can be accessed by sending curl requests for each one.
+
+Monero wallets are accounts based
+
+<https://web.getmonero.org/resources/moneropedia/account.html>
+
+## Architecture
+
+![alt text](image-1.png)
+
+Embedded in Tmux
+
+- **alpha** is a monero p2p daemon
+
+- **bill** is a miner wallet .. you can top up more funds from bill if you run out
+
+- **fred** is a normal wallet user
+
+- **charlie** is a normal wallet user
+
+- **charlie_view** is a view-only wallet sibling of charlie full wallet - no spend key
+
+## Using
+
+### Prerequisites
+
+- **monero-x86_64-linux-gnu-v0.18.3.3** or later <https://downloads.getmonero.org/cli/linux64>
+- **linux** (tested on Ubuntu 22.04)
+- **jq** (1.6)
+
+### Setup
+
+**monero-x86_64-linux-gnu-v0.18.3.3** should be in PATH
+
+`export PATH=$PATH:[path-to]/monero-x86_64-linux-gnu-v0.18.3.3`
+
+### Background Mining
+
+By default background mining is set up and mines to bill wallet every 15s
+
+To disable:
+
+`export NOMINER="1" to your shell`
+
+ or else invoke the harness with:
+
+`NOMINER="1" ./harness.sh`
+
+You should disable if attempting the manual offline cold signing using `monero-wallet-cli`
+
+You should also ctl-C charlie & charlie_view wallets for this
+
+### Run
+
+`./harness.sh`
+
+### Data Directory
+
+![alt text](image-2.png)
+
+### Known Issues
+
+The transaction spend locking needs more investigation
+
+### Commands Help
+
+run `./help` from the tmux harness window 0
+
+```text
+
+Commands Help:
+--------------
+alpha_get_transactions
+
+- get transactions info for one or more txid
+- inputs:
+  - tx_hashes - hash1,hash2,hash3,...
+
+alpha_get_transactions_details
+
+- get transaction development details from monerod including tx lock time
+- inputs:
+  - tx_hashes - hash1,hash2,hash3,...
+
+alpha_info
+
+- get running daemon details - height, etc.
+- inputs: None
+
+alpha_sendrawtransaction
+
+- broadcast a previously built signed tx
+- inputs:
+  - tx_as_hex string - can be generated with charlie_build_tx or fred_build_tx
+
+alpha_transaction_pool
+
+- get mempool details
+- inputs: None
+
+mine-to-bill
+
+- generate 1 or more blocks to bill wallet
+- inputs:
+  - num_blocks - defaults to 1
+
+bill_balance
+
+- get bill wallet balance details
+- inputs: None
+
+bill_refresh_wallet
+
+- update bill's wallet from the daemon latest info
+- inputs: None
+
+bill_transfer_to
+
+- build, sign and broadcast a transaction from bill wallet to another address
+- inputs:
+  - amount in in atomic units 1e12 - e.g. 1230000000000 echo = 1.23 XMR
+  - address - recipient primary address - account index 0, subaddr_indeces [0]
+  - unlock_time - unlock after n blocks and make spendable - defaults to 0 (no lock)
+
+charlie_balance
+
+- get charlie wallet balance details
+- inputs: None
+
+charlie_refresh_wallet
+
+- update charlie's wallet from the daemon latest info
+- inputs: None
+
+charlie_build_tx
+
+- build a signed tx for later broadcasting using alpha_send
+- inputs:
+  - amount in in atomic units 1e12 - e.g. 1230000000000 = 1.23 XMR
+  - address - recipient primary address - account index 0, subaddr_indeces [0]
+  - unlock_time - unlock after n blocks and make spendable - defaults to 0 (no lock)
+-outputs:
+  - signed tx_blob
+  - tx_hash
+
+charlie_incoming_transfers
+
+- get a list of incoming mined transfers to charlie wallet
+- inputs: None
+
+charlie_transfer_to
+
+- build, sign and broadcast a transaction from charlie wallet to another address
+- inputs
+  - amount in in atomic units 1e12 - e.g. 1230000000000 echo = 1.23 XMR
+  - address - recipient primary address - account index 0, subaddr_indeces [0]
+  - unlock_time - unlock after n blocks and make spendable - defaults to 0 (no lock)
+
+fred_export_outputs
+
+- export fred outputs hex
+- input:
+  - all - defaults to true - otherwise only new outputs since the last call
+
+charlie_export_outputs
+
+- export charlie outputs hex
+- input:
+  - all - defaults to true - otherwise only new outputs since the last call
+
+charlie_view_export_outputs
+
+- export charlie_view outputs hex - charlie_view knows the outputs but has no spend key
+- inputs: None
+- only useful in offline, cold signing process using monero-wallet-cli interactive tool
+  must be hex decoded into a file to use in monero-wallet-cli
+
+fred_export_key_images
+
+- export signed key images from fred wallet - an array of key images and ephemeral signatures
+- input:
+  - all - defaults to true - otherwise only new key images since the last call
+
+charlie_export_key_images
+
+- export signed key images from charlie wallet - an array of key images and ephemeral signatures
+- input:
+  - all - defaults to true - otherwise only new key images since the last call
+
+fred_balance
+
+- get fred wallet balance details
+- inputs: None
+
+fred_refresh_wallet
+
+- update fred's wallet from the daemon latest info
+- inputs: None
+
+fred_build_tx
+
+- build a signed tx for later broadcasting using alpha_send
+- inputs:
+  - amount in in atomic units 1e12 - e.g. 1230000000000 = 1.23 XMR
+  - address - recipient primary address - account index 0, subaddr_indeces [0]
+  - unlock_time - unlock after n blocks and make spendable - defaults to 0 (no lock)
+-outputs:
+  - signed tx_blob
+  - tx_hash
+
+fred_incoming_transfers
+
+- get a list of incoming mined transfers to fred wallet
+- inputs: None
+
+fred_transfer_to
+
+- build, sign and broadcast a transaction from bill wallet to another address
+- inputs
+  - amount in in atomic units 1e12 - e.g. 1230000000000 echo = 1.23 XMR
+  - address - recipient primary address - account index 0, subaddr_indeces [0]
+  - unlock_time - unlock after n blocks and make spendable - defaults to 0 (no lock)
+
+wallets
+
+- wallet details exported to the harness environment - useful for building commands in the harness window 0
+
+help
+
+- this help
+
+quit
+
+- shutdown daemons and quit the harness
+
+```