commit ed05ebba46cdb1356f6ce0bd1dc9978857226c08 Author: Csaba Kiraly Date: Tue Jun 13 12:44:25 2023 +0200 initial commit of the DAS DHT emulator Signed-off-by: Csaba Kiraly diff --git a/.gitmodules b/.gitmodules new file mode 100644 index 0000000..bbd63fd --- /dev/null +++ b/.gitmodules @@ -0,0 +1,60 @@ +[submodule "vendor/nimbus-build-system"] + path = vendor/nimbus-build-system + url = https://github.com/status-im/nimbus-build-system.git +[submodule "vendor/nim-libp2p-dht"] + path = vendor/nim-libp2p-dht + url = https://github.com/codex-storage/nim-libp2p-dht.git +[submodule "vendor/nim-chronicles"] + path = vendor/nim-chronicles + url = https://github.com/status-im/nim-chronicles.git +[submodule "vendor/nim-chronos"] + path = vendor/nim-chronos + url = https://github.com/status-im/nim-chronos.git +[submodule "vendor/nim-bearssl"] + path = vendor/nim-bearssl + url = https://github.com/status-im/nim-bearssl.git +[submodule "vendor/nim-libp2p"] + path = vendor/nim-libp2p + url = https://github.com/status-im/nim-libp2p.git +[submodule "vendor/nim-faststreams"] + path = vendor/nim-faststreams + url = https://github.com/status-im/nim-faststreams.git +[submodule "vendor/nim-stew"] + path = vendor/nim-stew + url = https://github.com/status-im/nim-stew.git +[submodule "vendor/nim-json-serialization"] + path = vendor/nim-json-serialization + url = https://github.com/status-im/nim-json-serialization.git +[submodule "vendor/nim-serialization"] + path = vendor/nim-serialization + url = https://github.com/status-im/nim-serialization.git +[submodule "vendor/nimcrypto"] + path = vendor/nimcrypto + url = https://github.com/cheatfate/nimcrypto.git +[submodule "vendor/stint"] + path = vendor/stint + url = https://github.com/status-im/stint.git +[submodule "vendor/nim-secp256k1"] + path = vendor/nim-secp256k1 + url = https://github.com/status-im/nim-secp256k1.git +[submodule "vendor/nim-metrics"] + path = vendor/nim-metrics + url = https://github.com/status-im/nim-metrics.git +[submodule "vendor/nim-datastore"] + path = vendor/nim-datastore + url = https://github.com/status-im/nim-datastore.git +[submodule "vendor/questionable"] + path = vendor/questionable + url = https://github.com/status-im/questionable.git +[submodule "vendor/upraises"] + path = vendor/upraises + url = https://github.com/markspanbroek/upraises.git +[submodule "vendor/nim-sqlite3-abi"] + path = vendor/nim-sqlite3-abi + url = https://github.com/arnetheduck/nim-sqlite3-abi.git +[submodule "vendor/nim-websock"] + path = vendor/nim-websock + url = https://github.com/status-im/nim-websock.git +[submodule "vendor/nim-http-utils"] + path = vendor/nim-http-utils + url = https://github.com/status-im/nim-http-utils.git diff --git a/LICENSE-APACHEv2 b/LICENSE-APACHEv2 new file mode 100644 index 0000000..be126eb --- /dev/null +++ b/LICENSE-APACHEv2 @@ -0,0 +1,205 @@ +Copyright (c) 2022 Status Research & Development GmbH +----------------------------------------------------- + + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..40591ee --- /dev/null +++ b/Makefile @@ -0,0 +1,55 @@ +SHELL := bash # the shell used internally by "make" + +# used inside the included makefiles +BUILD_SYSTEM_DIR := vendor/nimbus-build-system + +# we don't want an error here, so we can handle things later, in the ".DEFAULT" target +-include $(BUILD_SYSTEM_DIR)/makefiles/variables.mk + +.PHONY: \ + all \ + deps \ + update \ + das \ + clean + +ifeq ($(NIM_PARAMS),) +# "variables.mk" was not included, so we update the submodules. +GIT_SUBMODULE_UPDATE := git submodule update --init --recursive +.DEFAULT: + +@ echo -e "Git submodules not found. Running '$(GIT_SUBMODULE_UPDATE)'.\n"; \ + $(GIT_SUBMODULE_UPDATE) && \ + echo +# Now that the included *.mk files appeared, and are newer than this file, Make will restart itself: +# https://www.gnu.org/software/make/manual/make.html#Remaking-Makefiles +# +# After restarting, it will execute its original goal, so we don't have to start a child Make here +# with "$(MAKE) $(MAKECMDGOALS)". Isn't hidden control flow great? + +else # "variables.mk" was included. Business as usual until the end of this file. + +# default target, because it's the first one that doesn't start with '.' +all: | das + +# must be included after the default target +-include $(BUILD_SYSTEM_DIR)/makefiles/targets.mk + +# add a default Nim compiler argument +NIM_PARAMS += -d:release + +deps: | deps-common + # Have custom deps? Add them above. + +update: | update-common + # Do you need to do something extra for this target? + +# building Nim programs +das: | build deps + echo -e $(BUILD_MSG) "build/$@" && \ + $(ENV_SCRIPT) "$(NIMC)" c -o:build/$@ $(NIM_PARAMS) "$@.nim" + +clean: | clean-common + rm -rf build/{das} + +endif # "variables.mk" was not included + diff --git a/README.md b/README.md new file mode 100644 index 0000000..26eeced --- /dev/null +++ b/README.md @@ -0,0 +1,9 @@ +# DAS emulator + +Emulate DAS DHT behavior, with a few simplifying assumptions: + +- the block is populated in the DHT by the builder (node 0) +- all nodes start sampling at the same time +- 1-way latency is 50ms (configurable) +- no losses in transmission (configurable) +- scaled down numbers (nodes, blocksize, etc., all configrable) diff --git a/das.nim b/das.nim new file mode 100644 index 0000000..fee698c --- /dev/null +++ b/das.nim @@ -0,0 +1,185 @@ +import + std/[random, math], + chronicles, + chronos, + libp2pdht/dht, + libp2pdht/discv5/crypto as dhtcrypto, + libp2pdht/discv5/protocol as discv5_protocol, + tests/dht/test_helper + +logScope: + topics = "DAS emulator" + +proc bootstrapNodes( + nodecount: int, + bootnodes: seq[SignedPeerRecord], + rng = newRng(), + delay: int = 0 + ) : Future[seq[(discv5_protocol.Protocol, PrivateKey)]] {.async.} = + + debug "---- STARTING BOOSTRAPS ---" + for i in 0.. 0: + await sleepAsync(chronos.milliseconds(delay)) + except TransportOsError as e: + echo "skipping node ",i ,":", e.msg + + #await allFutures(result.mapIt(it.bootstrap())) # this waits for bootstrap based on bootENode, which includes bonding with all its ping pongs + +proc bootstrapNetwork( + nodecount: int, + rng = newRng(), + delay: int = 0 + ) : Future[seq[(discv5_protocol.Protocol, PrivateKey)]] {.async.} = + + let + bootNodeKey = PrivateKey.fromHex( + "a2b50376a79b1a8c8a3296485572bdfbf54708bb46d3c25d73d2723aaaf6a617") + .expect("Valid private key hex") + bootNodeAddr = localAddress(20301) + bootNode = initDiscoveryNode(rng, bootNodeKey, bootNodeAddr, @[]) # just a shortcut for new and open + + #waitFor bootNode.bootstrap() # immediate, since no bootnodes are defined above + + var res = await bootstrapNodes(nodecount - 1, + @[bootnode.localNode.record], + rng, + delay) + res.insert((bootNode, bootNodeKey), 0) + return res + +proc toNodeId(data: openArray[byte]): NodeId = + readUintBE[256](keccak256.digest(data).data) + +proc segmentData(s: int, segmentsize: int) : seq[byte] = + result = newSeq[byte](segmentsize) + var + r = s + i = 0 + while r > 0: + assert(i= all div 10: # add better algo selector + var generated = newSeq[bool](all) # Initialized to false. + while count != 0: + let n = rand(s) + if not generated[n - s.a]: + generated[n - s.a] = true + result.add n + dec count + else: + while count != 0: + let n = rand(s) + if not (n in result): + result.add n + dec count + + +when isMainModule: + proc main() {.async.} = + let + nodecount = 100 + delay_pernode = 10 # in millisec + delay_init = 15*1000 # in millisec + blocksize = 256 + segmentsize = 2 + samplesize = 3 + upload_timeout = 5.seconds + sampling_timeout = 5.seconds + assert(log2(blocksize.float).ceil.int <= segmentsize * 8 ) + assert(samplesize <= blocksize) + + var + segmentIDs = newSeq[NodeId](blocksize) + + # start network + let + rng = newRng() + nodes = await bootstrapNetwork(nodecount=nodecount, delay=delay_pernode) + + # wait for network to settle + await sleepAsync(chronos.milliseconds(delay_init)) + + # generate block and push data + info "starting upload to DHT" + let startTime = Moment.now() + var futs = newSeq[Future[seq[Node]]]() + for s in 0 ..< blocksize: + let + segment = segmentData(s, segmentsize) + key = toNodeId(segment) + + segmentIDs[s] = key + + futs.add(nodes[0][0].addValue(key, segment)) + + let pass = await allFutures(futs).withTimeout(upload_timeout) + info "uploaded to DHT", by = 0, pass, time = Moment.now() - startTime + + # sample + proc startSamplingDA(n: discv5_protocol.Protocol): seq[Future[DiscResult[seq[byte]]]] = + ## Generate random sample and start the sampling process + var futs = newSeq[Future[DiscResult[seq[byte]]]]() + + let sample = sample(0 ..< blocksize, samplesize) + debug "starting sampling", by = n, sample + for s in sample: + let fut = n.getValue(segmentIDs[s]) + futs.add(fut) + return futs + + proc sampleDA(n: discv5_protocol.Protocol): Future[(bool, int, Duration)] {.async.} = + ## Sample and return detailed results of sampling + let startTime = Moment.now() + var futs = startSamplingDA(n) + + # test is passed if all segments are retrieved in time + let pass = await allFutures(futs).withTimeout(sampling_timeout) + var passcount: int + for f in futs: + if f.finished(): + passcount += 1 + + let time = Moment.now() - startTime + info "sample", by = n.localNode, pass, cnt = passcount, time + return (pass, passcount, time) + + # all nodes start sampling in parallel + var samplings = newSeq[Future[(bool, int, Duration)]]() + for n in 1 ..< nodecount: + samplings.add(sampleDA(nodes[n][0])) + await allFutures(samplings) + + # print statistics + var + passed = 0 + for f in samplings: + if f.finished(): + let (pass, passcount, time) = await f + passed += pass.int + debug "sampleStats", pass, cnt = passcount, time + else: + error "This should not happen!" + info "sampleStats", passed, total = samplings.len, ratio = passed/samplings.len + + waitfor main() + +# proc teardownAll() = +# for (n, _) in nodes: # if last test is enabled, we need nodes[1..^1] here +# await n.closeWait() + + diff --git a/vendor/nim-bearssl b/vendor/nim-bearssl new file mode 160000 index 0000000..9372f27 --- /dev/null +++ b/vendor/nim-bearssl @@ -0,0 +1 @@ +Subproject commit 9372f27a25d0718d3527afad6cc936f6a853f86e diff --git a/vendor/nim-chronicles b/vendor/nim-chronicles new file mode 160000 index 0000000..0644549 --- /dev/null +++ b/vendor/nim-chronicles @@ -0,0 +1 @@ +Subproject commit 06445495141d3bef82ddd9e68dfd7887bdc46fbf diff --git a/vendor/nim-chronos b/vendor/nim-chronos new file mode 160000 index 0000000..5b9ec08 --- /dev/null +++ b/vendor/nim-chronos @@ -0,0 +1 @@ +Subproject commit 5b9ec0837c4f6774b68bd9e5ccc36bd79a65e57d diff --git a/vendor/nim-datastore b/vendor/nim-datastore new file mode 160000 index 0000000..0cde8ae --- /dev/null +++ b/vendor/nim-datastore @@ -0,0 +1 @@ +Subproject commit 0cde8aeb67c59fd0ac95496dc6b5e1168d6632aa diff --git a/vendor/nim-faststreams b/vendor/nim-faststreams new file mode 160000 index 0000000..2a771bb --- /dev/null +++ b/vendor/nim-faststreams @@ -0,0 +1 @@ +Subproject commit 2a771bb91f8aae8520a5553955a2acce5fdd0c87 diff --git a/vendor/nim-http-utils b/vendor/nim-http-utils new file mode 160000 index 0000000..5065d2c --- /dev/null +++ b/vendor/nim-http-utils @@ -0,0 +1 @@ +Subproject commit 5065d2cf18dcb9812e25cc0e2c50eb357bde04cf diff --git a/vendor/nim-json-serialization b/vendor/nim-json-serialization new file mode 160000 index 0000000..e32e8ad --- /dev/null +++ b/vendor/nim-json-serialization @@ -0,0 +1 @@ +Subproject commit e32e8ad916ea12b8d356b2d691c4e2d8b8fea45d diff --git a/vendor/nim-libp2p b/vendor/nim-libp2p new file mode 160000 index 0000000..95e98e8 --- /dev/null +++ b/vendor/nim-libp2p @@ -0,0 +1 @@ +Subproject commit 95e98e8c51d57d041a9094b300cd884b35e87b95 diff --git a/vendor/nim-libp2p-dht b/vendor/nim-libp2p-dht new file mode 160000 index 0000000..3afc006 --- /dev/null +++ b/vendor/nim-libp2p-dht @@ -0,0 +1 @@ +Subproject commit 3afc0063423aa6b38a247a7e8399d381cdcd6f7c diff --git a/vendor/nim-metrics b/vendor/nim-metrics new file mode 160000 index 0000000..abf3acc --- /dev/null +++ b/vendor/nim-metrics @@ -0,0 +1 @@ +Subproject commit abf3acc7f06cee9ee2c287d2f31413dc3df4c04e diff --git a/vendor/nim-secp256k1 b/vendor/nim-secp256k1 new file mode 160000 index 0000000..05b4bde --- /dev/null +++ b/vendor/nim-secp256k1 @@ -0,0 +1 @@ +Subproject commit 05b4bde6d09b2c6ecc889bec2b1369a7264f3a29 diff --git a/vendor/nim-serialization b/vendor/nim-serialization new file mode 160000 index 0000000..c23b499 --- /dev/null +++ b/vendor/nim-serialization @@ -0,0 +1 @@ +Subproject commit c23b49910db2dc20db9e731ec6421531b9379aaf diff --git a/vendor/nim-sqlite3-abi b/vendor/nim-sqlite3-abi new file mode 160000 index 0000000..362e1bd --- /dev/null +++ b/vendor/nim-sqlite3-abi @@ -0,0 +1 @@ +Subproject commit 362e1bd9f689ad9f5380d9d27f0705b3d4dfc7d3 diff --git a/vendor/nim-stew b/vendor/nim-stew new file mode 160000 index 0000000..ebbb391 --- /dev/null +++ b/vendor/nim-stew @@ -0,0 +1 @@ +Subproject commit ebbb391b9e87bb50907f8a17546cd383c41a713e diff --git a/vendor/nim-websock b/vendor/nim-websock new file mode 160000 index 0000000..2c3ae31 --- /dev/null +++ b/vendor/nim-websock @@ -0,0 +1 @@ +Subproject commit 2c3ae3137f3c9cb48134285bd4a47186fa51f0e8 diff --git a/vendor/nimbus-build-system b/vendor/nimbus-build-system new file mode 160000 index 0000000..239c3a7 --- /dev/null +++ b/vendor/nimbus-build-system @@ -0,0 +1 @@ +Subproject commit 239c3a7fbb88fd241da0ade3246fd2e5fcff4f25 diff --git a/vendor/nimcrypto b/vendor/nimcrypto new file mode 160000 index 0000000..4014ef9 --- /dev/null +++ b/vendor/nimcrypto @@ -0,0 +1 @@ +Subproject commit 4014ef939b51e02053c2e16dd3481d47bc9267dd diff --git a/vendor/questionable b/vendor/questionable new file mode 160000 index 0000000..b18444a --- /dev/null +++ b/vendor/questionable @@ -0,0 +1 @@ +Subproject commit b18444a6d03293b0cd45c452fd0a7e1532c48c85 diff --git a/vendor/stint b/vendor/stint new file mode 160000 index 0000000..c0ae9e1 --- /dev/null +++ b/vendor/stint @@ -0,0 +1 @@ +Subproject commit c0ae9e10a9238883d18226fa28a5435c4d305e45 diff --git a/vendor/upraises b/vendor/upraises new file mode 160000 index 0000000..bc26289 --- /dev/null +++ b/vendor/upraises @@ -0,0 +1 @@ +Subproject commit bc2628989b63854d980e92dadbd58f83e34b6f25