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Age Manning 2020-04-22 01:05:46 +10:00
commit 9e416a9bcd
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73 changed files with 2631 additions and 612 deletions
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11
.github/workflows/test-suite.yml vendored
View File

@ -75,11 +75,14 @@ jobs:
- name: Typecheck benchmark code without running it
run: make check-benches
install-lcli:
runs-on: ubuntu-latest
needs: cargo-fmt
steps:
- uses: actions/checkout@v1
- name: Get latest version of stable Rust
run: rustup update stable
- name: Build lcli via Makefile
run: make install-lcli
clippy:
runs-on: ubuntu-latest
needs: cargo-fmt
steps:
- uses: actions/checkout@v1
- name: Lint code for quality and style with Clippy
run: make lint

107
Cargo.lock generated
View File

@ -140,7 +140,7 @@ name = "atty"
version = "0.2.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"hermit-abi 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
"hermit-abi 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.69 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -160,7 +160,7 @@ name = "backtrace"
version = "0.3.46"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"backtrace-sys 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
"backtrace-sys 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)",
"cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.69 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
@ -168,7 +168,7 @@ dependencies = [
[[package]]
name = "backtrace-sys"
version = "0.1.35"
version = "0.1.36"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
@ -226,6 +226,7 @@ dependencies = [
"proto_array_fork_choice 0.2.0",
"rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
"rayon 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"safe_arith 0.1.0",
"serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.51 (registry+https://github.com/rust-lang/crates.io-index)",
@ -383,7 +384,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "bs58"
version = "0.3.0"
version = "0.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
@ -477,7 +478,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
"num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -622,7 +623,7 @@ name = "cookie"
version = "0.12.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
"url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -638,7 +639,7 @@ dependencies = [
"publicsuffix 1.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.51 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
"try_from 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
"url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -681,7 +682,7 @@ dependencies = [
"oorandom 11.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"plotters 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
"rayon 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.51 (registry+https://github.com/rust-lang/crates.io-index)",
@ -898,7 +899,7 @@ dependencies = [
"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -1009,7 +1010,7 @@ version = "0.1.0-alpha.3"
source = "git+https://github.com/SigP/rust-libp2p?rev=37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3#37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3"
dependencies = [
"base64 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
"bs58 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"bs58 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
"ed25519-dalek 1.0.0-pre.3 (registry+https://github.com/rust-lang/crates.io-index)",
"hex 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
"libp2p-core 0.13.2 (git+https://github.com/SigP/rust-libp2p?rev=37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3)",
@ -1030,7 +1031,7 @@ dependencies = [
"atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
"humantime 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -1042,7 +1043,7 @@ dependencies = [
"atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
"humantime 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -1218,7 +1219,7 @@ dependencies = [
"serde_yaml 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
"tree_hash 0.1.1",
"tree_hash_derive 0.2.0",
"typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
"typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -1444,7 +1445,7 @@ version = "0.1.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -1457,7 +1458,7 @@ name = "generic-array"
version = "0.12.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
"typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -1563,7 +1564,7 @@ dependencies = [
[[package]]
name = "hermit-abi"
version = "0.1.10"
version = "0.1.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"libc 0.2.69 (registry+https://github.com/rust-lang/crates.io-index)",
@ -1651,8 +1652,8 @@ dependencies = [
"language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
"mime 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
"traitobject 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
"unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@ -1676,7 +1677,7 @@ dependencies = [
"log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
"net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-buf 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-executor 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
@ -1886,7 +1887,7 @@ dependencies = [
"genesis 0.2.0",
"hex 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_yaml 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
"simple_logger 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -1975,7 +1976,7 @@ version = "0.13.2"
source = "git+https://github.com/SigP/rust-libp2p?rev=37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3#37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3"
dependencies = [
"asn1_der 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
"bs58 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"bs58 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
"bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
"ed25519-dalek 1.0.0-pre.3 (registry+https://github.com/rust-lang/crates.io-index)",
"failure 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
@ -2071,7 +2072,7 @@ name = "libp2p-floodsub"
version = "0.13.1"
source = "git+https://github.com/SigP/rust-libp2p?rev=37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3#37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3"
dependencies = [
"bs58 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"bs58 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
"bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
"cuckoofilter 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
"fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
@ -2370,7 +2371,7 @@ dependencies = [
"rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
"sha2 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
"subtle 2.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
"typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -2517,6 +2518,7 @@ dependencies = [
"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"quickcheck 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
"quickcheck_macros 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
"safe_arith 0.1.0",
]
[[package]]
@ -2748,10 +2750,10 @@ dependencies = [
[[package]]
name = "num_cpus"
version = "1.12.0"
version = "1.13.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"hermit-abi 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
"hermit-abi 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.69 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -2834,7 +2836,7 @@ version = "0.6.0"
source = "git+https://github.com/SigP/rust-libp2p?rev=37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3#37b7e9349cf3e724da02bbd4b5dd6c054c2d56d3"
dependencies = [
"arrayref 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"bs58 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"bs58 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
"byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
"bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
"data-encoding 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -3083,7 +3085,7 @@ dependencies = [
"error-chain 0.12.2 (registry+https://github.com/rust-lang/crates.io-index)",
"idna 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"url 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -3327,7 +3329,7 @@ dependencies = [
"crossbeam-queue 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
"crossbeam-utils 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -3355,7 +3357,7 @@ dependencies = [
[[package]]
name = "regex"
version = "1.3.6"
version = "1.3.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"aho-corasick 0.7.10 (registry+https://github.com/rust-lang/crates.io-index)",
@ -3425,7 +3427,7 @@ dependencies = [
"serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.51 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_urlencoded 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
"time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-executor 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-io 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
@ -3573,6 +3575,10 @@ name = "ryu"
version = "1.0.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "safe_arith"
version = "0.1.0"
[[package]]
name = "safemem"
version = "0.3.3"
@ -3583,7 +3589,7 @@ name = "same-file"
version = "1.0.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"winapi-util 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -3839,7 +3845,7 @@ name = "slog-kvfilter"
version = "0.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
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"slog 2.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -3894,7 +3900,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
"libflate 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"slog 2.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
@ -3993,6 +3999,7 @@ dependencies = [
"log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
"merkle_proof 0.2.0",
"rayon 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"safe_arith 0.1.0",
"serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_yaml 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
@ -4156,7 +4163,7 @@ name = "termcolor"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"winapi-util 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -4185,11 +4192,10 @@ dependencies = [
[[package]]
name = "time"
version = "0.1.42"
version = "0.1.43"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"libc 0.2.69 (registry+https://github.com/rust-lang/crates.io-index)",
"redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -4231,7 +4237,7 @@ dependencies = [
"bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
"futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
"mio 0.6.21 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-codec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-current-thread 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-executor 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
@ -4354,7 +4360,7 @@ dependencies = [
"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
"mio 0.6.21 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
"parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
"slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-executor 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
@ -4408,7 +4414,7 @@ dependencies = [
"futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
"slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-executor 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -4572,7 +4578,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "typenum"
version = "1.11.2"
version = "1.12.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
@ -4600,6 +4606,7 @@ dependencies = [
"rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_xorshift 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"rayon 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"safe_arith 0.1.0",
"serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_derive 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
"serde_json 1.0.51 (registry+https://github.com/rust-lang/crates.io-index)",
@ -4801,7 +4808,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi-util 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -5069,7 +5076,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "winapi-util"
version = "0.1.4"
version = "0.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
@ -5190,7 +5197,7 @@ dependencies = [
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@ -5206,7 +5213,7 @@ dependencies = [
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"checksum bumpalo 3.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "12ae9db68ad7fac5fe51304d20f016c911539251075a214f8e663babefa35187"
"checksum byte-slice-cast 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "b0a5e3906bcbf133e33c1d4d95afc664ad37fbdb9f6568d8043e7ea8c27d93d3"
@ -5299,7 +5306,7 @@ dependencies = [
"checksum hashbrown 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e1de41fb8dba9714efd92241565cdff73f78508c95697dd56787d3cba27e2353"
"checksum hashbrown 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8e6073d0ca812575946eb5f35ff68dbe519907b25c42530389ff946dc84c6ead"
"checksum heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1679e6ea370dee694f91f1dc469bf94cf8f52051d147aec3e1f9497c6fc22461"
"checksum hermit-abi 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "725cf19794cf90aa94e65050cb4191ff5d8fa87a498383774c47b332e3af952e"
"checksum hermit-abi 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "8a0d737e0f947a1864e93d33fdef4af8445a00d1ed8dc0c8ddb73139ea6abf15"
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"checksum hkdf 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3fa08a006102488bd9cd5b8013aabe84955cf5ae22e304c2caf655b633aefae3"
@ -5391,7 +5398,7 @@ dependencies = [
"checksum num-bigint 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "090c7f9998ee0ff65aa5b723e4009f7b217707f1fb5ea551329cc4d6231fb304"
"checksum num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "3f6ea62e9d81a77cd3ee9a2a5b9b609447857f3d358704331e4ef39eb247fcba"
"checksum num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "c62be47e61d1842b9170f0fdeec8eba98e60e90e5446449a0545e5152acd7096"
"checksum num_cpus 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "46203554f085ff89c235cd12f7075f3233af9b11ed7c9e16dfe2560d03313ce6"
"checksum num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)" = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
"checksum oorandom 11.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ebcec7c9c2a95cacc7cd0ecb89d8a8454eca13906f6deb55258ffff0adeb9405"
"checksum opaque-debug 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
"checksum openssl 0.10.29 (registry+https://github.com/rust-lang/crates.io-index)" = "cee6d85f4cb4c4f59a6a85d5b68a233d280c82e29e822913b9c8b129fbf20bdd"
@ -5453,7 +5460,7 @@ dependencies = [
"checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
"checksum redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)" = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
"checksum redox_users 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "09b23093265f8d200fa7b4c2c76297f47e681c655f6f1285a8780d6a022f7431"
"checksum regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "7f6946991529684867e47d86474e3a6d0c0ab9b82d5821e314b1ede31fa3a4b3"
"checksum regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "a6020f034922e3194c711b82a627453881bc4682166cabb07134a10c26ba7692"
"checksum regex-automata 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "ae1ded71d66a4a97f5e961fd0cb25a5f366a42a41570d16a763a69c092c26ae4"
"checksum regex-syntax 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)" = "7fe5bd57d1d7414c6b5ed48563a2c855d995ff777729dcd91c369ec7fea395ae"
"checksum remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4a83fa3702a688b9359eccba92d153ac33fd2e8462f9e0e3fdf155239ea7792e"
@ -5528,7 +5535,7 @@ dependencies = [
"checksum termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb6bfa289a4d7c5766392812c0a1f4c1ba45afa1ad47803c11e1f407d846d75f"
"checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
"checksum thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
"checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
"checksum time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)" = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
"checksum tiny-keccak 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d8a021c69bb74a44ccedb824a046447e2c84a01df9e5c20779750acb38e11b2"
"checksum tinytemplate 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "57a3c6667d3e65eb1bc3aed6fd14011c6cbc3a0665218ab7f5daf040b9ec371a"
"checksum tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)" = "5a09c0b5bb588872ab2f09afa13ee6e9dac11e10a0ec9e8e3ba39a5a5d530af6"
@ -5560,7 +5567,7 @@ dependencies = [
"checksum try_from 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "283d3b89e1368717881a9d51dad843cc435380d8109c9e47d38780a324698d8b"
"checksum twofish 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712d261e83e727c8e2dbb75dacac67c36e35db36a958ee504f2164fc052434e1"
"checksum typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1410f6f91f21d1612654e7cc69193b0334f909dcf2c790c4826254fbb86f8887"
"checksum typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6d2783fe2d6b8c1101136184eb41be8b1ad379e4657050b8aaff0c79ee7575f9"
"checksum typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "373c8a200f9e67a0c95e62a4f52fbf80c23b4381c05a17845531982fa99e6b33"
"checksum uint 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2143cded94692b156c356508d92888acc824db5bffc0b4089732264c6fcf86d4"
"checksum uint 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e75a4cdd7b87b28840dba13c483b9a88ee6bbf16ba5c951ee1ecfcf723078e0d"
"checksum unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
@ -5603,7 +5610,7 @@ dependencies = [
"checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
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"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
"checksum winapi-util 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "fa515c5163a99cc82bab70fd3bfdd36d827be85de63737b40fcef2ce084a436e"
"checksum winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
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1
Cargo.toml
View File

@ -18,6 +18,7 @@ members = [
"eth2/utils/lighthouse_metrics",
"eth2/utils/merkle_proof",
"eth2/utils/int_to_bytes",
"eth2/utils/safe_arith",
"eth2/utils/serde_hex",
"eth2/utils/slot_clock",
"eth2/utils/rest_types",

5
Makefile
View File

@ -45,6 +45,11 @@ test: test-release
# Runs the entire test suite, downloading test vectors if required.
test-full: cargo-fmt test-release test-debug test-ef
# Lints the code for bad style and potentially unsafe arithmetic using Clippy.
# Clippy lints are opt-in per-crate for now, which is why we allow all by default.
lint:
cargo clippy --all -- -A clippy::all
# Runs the makefile in the `ef_tests` repo.
#
# May download and extract an archive of test vectors from the ethereum

1
beacon_node/beacon_chain/Cargo.toml
View File

@ -42,6 +42,7 @@ rand = "0.7.2"
proto_array_fork_choice = { path = "../../eth2/proto_array_fork_choice" }
lru = "0.4.3"
tempfile = "3.1.0"
safe_arith = { path = "../../eth2/utils/safe_arith" }
[dev-dependencies]
lazy_static = "1.4.0"

211
beacon_node/beacon_chain/src/beacon_chain.rs
View File

@ -8,6 +8,7 @@ use crate::events::{EventHandler, EventKind};
use crate::fork_choice::{Error as ForkChoiceError, ForkChoice};
use crate::head_tracker::HeadTracker;
use crate::metrics;
use crate::migrate::Migrate;
use crate::naive_aggregation_pool::{Error as NaiveAggregationError, NaiveAggregationPool};
use crate::persisted_beacon_chain::PersistedBeaconChain;
use crate::shuffling_cache::ShufflingCache;
@ -28,12 +29,16 @@ use state_processing::{
};
use std::borrow::Cow;
use std::cmp::Ordering;
use std::collections::HashMap;
use std::collections::HashSet;
use std::io::prelude::*;
use std::sync::Arc;
use std::time::{Duration, Instant};
use store::iter::{
BlockRootsIterator, ReverseBlockRootIterator, ReverseStateRootIterator, StateRootsIterator,
BlockRootsIterator, ParentRootBlockIterator, ReverseBlockRootIterator,
ReverseStateRootIterator, StateRootsIterator,
};
use store::{Error as DBError, Migrate, Store};
use store::{Error as DBError, Store};
use types::*;
// Text included in blocks.
@ -159,7 +164,7 @@ pub struct HeadInfo {
pub trait BeaconChainTypes: Send + Sync + 'static {
type Store: store::Store<Self::EthSpec>;
type StoreMigrator: store::Migrate<Self::Store, Self::EthSpec>;
type StoreMigrator: Migrate<Self::Store, Self::EthSpec>;
type SlotClock: slot_clock::SlotClock;
type Eth1Chain: Eth1ChainBackend<Self::EthSpec, Self::Store>;
type EthSpec: types::EthSpec;
@ -199,7 +204,7 @@ pub struct BeaconChain<T: BeaconChainTypes> {
/// A handler for events generated by the beacon chain.
pub event_handler: T::EventHandler,
/// Used to track the heads of the beacon chain.
pub(crate) head_tracker: HeadTracker,
pub(crate) head_tracker: Arc<HeadTracker>,
/// A cache dedicated to block processing.
pub(crate) snapshot_cache: TimeoutRwLock<SnapshotCache<T::EthSpec>>,
/// Caches the shuffling for a given epoch and state root.
@ -497,6 +502,10 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
self.head_tracker.heads()
}
pub fn knows_head(&self, block_hash: &SignedBeaconBlockHash) -> bool {
self.head_tracker.contains_head((*block_hash).into())
}
/// Returns the `BeaconState` at the given slot.
///
/// Returns `None` when the state is not found in the database or there is an error skipping
@ -1230,6 +1239,76 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
}
}
/// Check that the shuffling at `block_root` is equal to one of the shufflings of `state`.
///
/// The `target_epoch` argument determines which shuffling to check compatibility with, it
/// should be equal to the current or previous epoch of `state`, or else `false` will be
/// returned.
///
/// The compatibility check is designed to be fast: we check that the block that
/// determined the RANDAO mix for the `target_epoch` matches the ancestor of the block
/// identified by `block_root` (at that slot).
pub fn shuffling_is_compatible(
&self,
block_root: &Hash256,
target_epoch: Epoch,
state: &BeaconState<T::EthSpec>,
) -> bool {
let slots_per_epoch = T::EthSpec::slots_per_epoch();
let shuffling_lookahead = 1 + self.spec.min_seed_lookahead.as_u64();
// Shuffling can't have changed if we're in the first few epochs
if state.current_epoch() < shuffling_lookahead {
return true;
}
// Otherwise the shuffling is determined by the block at the end of the target epoch
// minus the shuffling lookahead (usually 2). We call this the "pivot".
let pivot_slot =
if target_epoch == state.previous_epoch() || target_epoch == state.current_epoch() {
(target_epoch - shuffling_lookahead).end_slot(slots_per_epoch)
} else {
return false;
};
let state_pivot_block_root = match state.get_block_root(pivot_slot) {
Ok(root) => *root,
Err(e) => {
warn!(
&self.log,
"Missing pivot block root for attestation";
"slot" => pivot_slot,
"error" => format!("{:?}", e),
);
return false;
}
};
// Use fork choice's view of the block DAG to quickly evaluate whether the attestation's
// pivot block is the same as the current state's pivot block. If it is, then the
// attestation's shuffling is the same as the current state's.
// To account for skipped slots, find the first block at *or before* the pivot slot.
let fork_choice_lock = self.fork_choice.core_proto_array();
let pivot_block_root = fork_choice_lock
.iter_block_roots(block_root)
.find(|(_, slot)| *slot <= pivot_slot)
.map(|(block_root, _)| block_root);
drop(fork_choice_lock);
match pivot_block_root {
Some(root) => root == state_pivot_block_root,
None => {
debug!(
&self.log,
"Discarding attestation because of missing ancestor";
"pivot_slot" => pivot_slot.as_u64(),
"block_root" => format!("{:?}", block_root),
);
false
}
}
}
/// Accept some exit and queue it for inclusion in an appropriate block.
pub fn process_voluntary_exit(
&self,
@ -1749,6 +1828,21 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
.deposits_for_block_inclusion(&state, &eth1_data, &self.spec)?
.into();
// Map from attestation head block root to shuffling compatibility.
// Used to memoize the `attestation_shuffling_is_compatible` function.
let mut shuffling_filter_cache = HashMap::new();
let attestation_filter = |att: &&Attestation<T::EthSpec>| -> bool {
*shuffling_filter_cache
.entry((att.data.beacon_block_root, att.data.target.epoch))
.or_insert_with(|| {
self.shuffling_is_compatible(
&att.data.beacon_block_root,
att.data.target.epoch,
&state,
)
})
};
let mut block = SignedBeaconBlock {
message: BeaconBlock {
slot: state.slot,
@ -1763,7 +1857,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
attester_slashings: attester_slashings.into(),
attestations: self
.op_pool
.get_attestations(&state, &self.spec)
.get_attestations(&state, attestation_filter, &self.spec)
.map_err(BlockProductionError::OpPoolError)?
.into(),
deposits,
@ -1821,6 +1915,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
let beacon_block_root = self.fork_choice.find_head(&self)?;
let current_head = self.head_info()?;
let old_finalized_root = current_head.finalized_checkpoint.root;
if beacon_block_root == current_head.block_root {
return Ok(());
@ -1948,7 +2043,11 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
});
if new_finalized_epoch != old_finalized_epoch {
self.after_finalization(old_finalized_epoch, finalized_root)?;
self.after_finalization(
old_finalized_epoch,
finalized_root,
old_finalized_root.into(),
)?;
}
let _ = self.event_handler.register(EventKind::BeaconHeadChanged {
@ -1977,6 +2076,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
&self,
old_finalized_epoch: Epoch,
finalized_block_root: Hash256,
old_finalized_root: SignedBeaconBlockHash,
) -> Result<(), Error> {
let finalized_block = self
.store
@ -2016,10 +2116,13 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
// TODO: configurable max finality distance
let max_finality_distance = 0;
self.store_migrator.freeze_to_state(
self.store_migrator.process_finalization(
finalized_block.state_root,
finalized_state,
max_finality_distance,
Arc::clone(&self.head_tracker),
old_finalized_root,
finalized_block_root.into(),
);
let _ = self.event_handler.register(EventKind::BeaconFinalization {
@ -2103,6 +2206,100 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
self.slot_clock
.duration_to_slot(epoch.start_slot(T::EthSpec::slots_per_epoch()))
}
pub fn dump_as_dot<W: Write>(&self, output: &mut W) {
let canonical_head_hash = self
.canonical_head
.try_read_for(HEAD_LOCK_TIMEOUT)
.ok_or_else(|| Error::CanonicalHeadLockTimeout)
.unwrap()
.beacon_block_root;
let mut visited: HashSet<Hash256> = HashSet::new();
let mut finalized_blocks: HashSet<Hash256> = HashSet::new();
let genesis_block_hash = Hash256::zero();
write!(output, "digraph beacon {{\n").unwrap();
write!(output, "\t_{:?}[label=\"genesis\"];\n", genesis_block_hash).unwrap();
// Canonical head needs to be processed first as otherwise finalized blocks aren't detected
// properly.
let heads = {
let mut heads = self.heads();
let canonical_head_index = heads
.iter()
.position(|(block_hash, _)| *block_hash == canonical_head_hash)
.unwrap();
let (canonical_head_hash, canonical_head_slot) =
heads.swap_remove(canonical_head_index);
heads.insert(0, (canonical_head_hash, canonical_head_slot));
heads
};
for (head_hash, _head_slot) in heads {
for (block_hash, signed_beacon_block) in
ParentRootBlockIterator::new(&*self.store, head_hash)
{
if visited.contains(&block_hash) {
break;
}
visited.insert(block_hash);
if signed_beacon_block.slot() % T::EthSpec::slots_per_epoch() == 0 {
let block = self.get_block(&block_hash).unwrap().unwrap();
let state = self
.get_state(&block.state_root(), Some(block.slot()))
.unwrap()
.unwrap();
finalized_blocks.insert(state.finalized_checkpoint.root);
}
if block_hash == canonical_head_hash {
write!(
output,
"\t_{:?}[label=\"{} ({})\" shape=box3d];\n",
block_hash,
block_hash,
signed_beacon_block.slot()
)
.unwrap();
} else if finalized_blocks.contains(&block_hash) {
write!(
output,
"\t_{:?}[label=\"{} ({})\" shape=Msquare];\n",
block_hash,
block_hash,
signed_beacon_block.slot()
)
.unwrap();
} else {
write!(
output,
"\t_{:?}[label=\"{} ({})\" shape=box];\n",
block_hash,
block_hash,
signed_beacon_block.slot()
)
.unwrap();
}
write!(
output,
"\t_{:?} -> _{:?};\n",
block_hash,
signed_beacon_block.parent_root()
)
.unwrap();
}
}
write!(output, "}}\n").unwrap();
}
// Used for debugging
#[allow(dead_code)]
pub fn dump_dot_file(&self, file_name: &str) {
let mut file = std::fs::File::create(file_name).unwrap();
self.dump_as_dot(&mut file);
}
}
impl<T: BeaconChainTypes> Drop for BeaconChain<T> {

17
beacon_node/beacon_chain/src/builder.rs
View File

@ -5,6 +5,7 @@ use crate::eth1_chain::{CachingEth1Backend, SszEth1};
use crate::events::NullEventHandler;
use crate::fork_choice::SszForkChoice;
use crate::head_tracker::HeadTracker;
use crate::migrate::Migrate;
use crate::persisted_beacon_chain::PersistedBeaconChain;
use crate::shuffling_cache::ShufflingCache;
use crate::snapshot_cache::{SnapshotCache, DEFAULT_SNAPSHOT_CACHE_SIZE};
@ -47,7 +48,7 @@ impl<TStore, TStoreMigrator, TSlotClock, TEth1Backend, TEthSpec, TEventHandler>
for Witness<TStore, TStoreMigrator, TSlotClock, TEth1Backend, TEthSpec, TEventHandler>
where
TStore: Store<TEthSpec> + 'static,
TStoreMigrator: store::Migrate<TStore, TEthSpec> + 'static,
TStoreMigrator: Migrate<TStore, TEthSpec> + 'static,
TSlotClock: SlotClock + 'static,
TEth1Backend: Eth1ChainBackend<TEthSpec, TStore> + 'static,
TEthSpec: EthSpec + 'static,
@ -97,7 +98,7 @@ impl<TStore, TStoreMigrator, TSlotClock, TEth1Backend, TEthSpec, TEventHandler>
>
where
TStore: Store<TEthSpec> + 'static,
TStoreMigrator: store::Migrate<TStore, TEthSpec> + 'static,
TStoreMigrator: Migrate<TStore, TEthSpec> + 'static,
TSlotClock: SlotClock + 'static,
TEth1Backend: Eth1ChainBackend<TEthSpec, TStore> + 'static,
TEthSpec: EthSpec + 'static,
@ -442,7 +443,7 @@ where
event_handler: self
.event_handler
.ok_or_else(|| "Cannot build without an event handler".to_string())?,
head_tracker: self.head_tracker.unwrap_or_default(),
head_tracker: Arc::new(self.head_tracker.unwrap_or_default()),
snapshot_cache: TimeoutRwLock::new(SnapshotCache::new(
DEFAULT_SNAPSHOT_CACHE_SIZE,
canonical_head,
@ -475,7 +476,7 @@ impl<TStore, TStoreMigrator, TSlotClock, TEth1Backend, TEthSpec, TEventHandler>
>
where
TStore: Store<TEthSpec> + 'static,
TStoreMigrator: store::Migrate<TStore, TEthSpec> + 'static,
TStoreMigrator: Migrate<TStore, TEthSpec> + 'static,
TSlotClock: SlotClock + 'static,
TEth1Backend: Eth1ChainBackend<TEthSpec, TStore> + 'static,
TEthSpec: EthSpec + 'static,
@ -545,7 +546,7 @@ impl<TStore, TStoreMigrator, TSlotClock, TEthSpec, TEventHandler>
>
where
TStore: Store<TEthSpec> + 'static,
TStoreMigrator: store::Migrate<TStore, TEthSpec> + 'static,
TStoreMigrator: Migrate<TStore, TEthSpec> + 'static,
TSlotClock: SlotClock + 'static,
TEthSpec: EthSpec + 'static,
TEventHandler: EventHandler<TEthSpec> + 'static,
@ -583,7 +584,7 @@ impl<TStore, TStoreMigrator, TEth1Backend, TEthSpec, TEventHandler>
>
where
TStore: Store<TEthSpec> + 'static,
TStoreMigrator: store::Migrate<TStore, TEthSpec> + 'static,
TStoreMigrator: Migrate<TStore, TEthSpec> + 'static,
TEth1Backend: Eth1ChainBackend<TEthSpec, TStore> + 'static,
TEthSpec: EthSpec + 'static,
TEventHandler: EventHandler<TEthSpec> + 'static,
@ -622,7 +623,7 @@ impl<TStore, TStoreMigrator, TSlotClock, TEth1Backend, TEthSpec>
>
where
TStore: Store<TEthSpec> + 'static,
TStoreMigrator: store::Migrate<TStore, TEthSpec> + 'static,
TStoreMigrator: Migrate<TStore, TEthSpec> + 'static,
TSlotClock: SlotClock + 'static,
TEth1Backend: Eth1ChainBackend<TEthSpec, TStore> + 'static,
TEthSpec: EthSpec + 'static,
@ -654,12 +655,12 @@ fn genesis_block<T: EthSpec>(
#[cfg(test)]
mod test {
use super::*;
use crate::migrate::{MemoryStore, NullMigrator};
use eth2_hashing::hash;
use genesis::{generate_deterministic_keypairs, interop_genesis_state};
use sloggers::{null::NullLoggerBuilder, Build};
use ssz::Encode;
use std::time::Duration;
use store::{migrate::NullMigrator, MemoryStore};
use tempfile::tempdir;
use types::{EthSpec, MinimalEthSpec, Slot};

10
beacon_node/beacon_chain/src/eth1_chain.rs
View File

@ -44,6 +44,14 @@ pub enum Error {
///
/// The eth1 caches are stale, or a junk value was voted into the chain.
UnknownPreviousEth1BlockHash,
/// An arithmetic error occurred.
ArithError(safe_arith::ArithError),
}
impl From<safe_arith::ArithError> for Error {
fn from(e: safe_arith::ArithError) -> Self {
Self::ArithError(e)
}
}
#[derive(Encode, Decode, Clone)]
@ -371,7 +379,7 @@ impl<T: EthSpec, S: Store<T>> Eth1ChainBackend<T, S> for CachingEth1Backend<T, S
_spec: &ChainSpec,
) -> Result<Vec<Deposit>, Error> {
let deposit_index = state.eth1_deposit_index;
let deposit_count = if let Some(new_eth1_data) = get_new_eth1_data(state, eth1_data_vote) {
let deposit_count = if let Some(new_eth1_data) = get_new_eth1_data(state, eth1_data_vote)? {
new_eth1_data.deposit_count
} else {
state.eth1_data.deposit_count

13
beacon_node/beacon_chain/src/head_tracker.rs
View File

@ -25,11 +25,22 @@ impl HeadTracker {
/// the upstream user.
pub fn register_block<E: EthSpec>(&self, block_root: Hash256, block: &BeaconBlock<E>) {
let mut map = self.0.write();
map.remove(&block.parent_root);
map.insert(block_root, block.slot);
}
/// Removes abandoned head.
pub fn remove_head(&self, block_root: Hash256) {
let mut map = self.0.write();
debug_assert!(map.contains_key(&block_root));
map.remove(&block_root);
}
/// Returns true iff `block_root` is a recognized head.
pub fn contains_head(&self, block_root: Hash256) -> bool {
self.0.read().contains_key(&block_root)
}
/// Returns the list of heads in the chain.
pub fn heads(&self) -> Vec<(Hash256, Slot)> {
self.0

1
beacon_node/beacon_chain/src/lib.rs
View File

@ -12,6 +12,7 @@ pub mod events;
mod fork_choice;
mod head_tracker;
mod metrics;
pub mod migrate;
mod naive_aggregation_pool;
mod persisted_beacon_chain;
mod shuffling_cache;

349
beacon_node/beacon_chain/src/migrate.rs Normal file
View File

@ -0,0 +1,349 @@
use crate::errors::BeaconChainError;
use crate::head_tracker::HeadTracker;
use parking_lot::Mutex;
use slog::{debug, warn, Logger};
use std::collections::{HashMap, HashSet};
use std::iter::FromIterator;
use std::mem;
use std::sync::mpsc;
use std::sync::Arc;
use std::thread;
use store::iter::{ParentRootBlockIterator, RootsIterator};
use store::{hot_cold_store::HotColdDBError, Error, SimpleDiskStore, Store};
pub use store::{DiskStore, MemoryStore};
use types::*;
use types::{BeaconState, EthSpec, Hash256, Slot};
/// Trait for migration processes that update the database upon finalization.
pub trait Migrate<S: Store<E>, E: EthSpec>: Send + Sync + 'static {
fn new(db: Arc<S>, log: Logger) -> Self;
fn process_finalization(
&self,
_state_root: Hash256,
_new_finalized_state: BeaconState<E>,
_max_finality_distance: u64,
_head_tracker: Arc<HeadTracker>,
_old_finalized_block_hash: SignedBeaconBlockHash,
_new_finalized_block_hash: SignedBeaconBlockHash,
) {
}
/// Traverses live heads and prunes blocks and states of chains that we know can't be built
/// upon because finalization would prohibit it. This is a optimisation intended to save disk
/// space.
///
/// Assumptions:
/// * It is called after every finalization.
fn prune_abandoned_forks(
store: Arc<S>,
head_tracker: Arc<HeadTracker>,
old_finalized_block_hash: SignedBeaconBlockHash,
new_finalized_block_hash: SignedBeaconBlockHash,
new_finalized_slot: Slot,
) -> Result<(), BeaconChainError> {
let old_finalized_slot = store
.get_block(&old_finalized_block_hash.into())?
.ok_or_else(|| BeaconChainError::MissingBeaconBlock(old_finalized_block_hash.into()))?
.slot();
// Collect hashes from new_finalized_block back to old_finalized_block (inclusive)
let mut found_block = false; // hack for `take_until`
let newly_finalized_blocks: HashMap<SignedBeaconBlockHash, Slot> = HashMap::from_iter(
ParentRootBlockIterator::new(&*store, new_finalized_block_hash.into())
.take_while(|(block_hash, _)| {
if found_block {
false
} else {
found_block |= *block_hash == old_finalized_block_hash.into();
true
}
})
.map(|(block_hash, block)| (block_hash.into(), block.slot())),
);
// We don't know which blocks are shared among abandoned chains, so we buffer and delete
// everything in one fell swoop.
let mut abandoned_blocks: HashSet<SignedBeaconBlockHash> = HashSet::new();
let mut abandoned_states: HashSet<(Slot, BeaconStateHash)> = HashSet::new();
let mut abandoned_heads: HashSet<Hash256> = HashSet::new();
for (head_hash, head_slot) in head_tracker.heads() {
let mut potentially_abandoned_head: Option<Hash256> = Some(head_hash);
let mut potentially_abandoned_blocks: Vec<(
Slot,
Option<SignedBeaconBlockHash>,
Option<BeaconStateHash>,
)> = Vec::new();
let head_state_hash = store
.get_block(&head_hash)?
.ok_or_else(|| BeaconStateError::MissingBeaconBlock(head_hash.into()))?
.state_root();
let iterator = std::iter::once((head_hash, head_state_hash, head_slot))
.chain(RootsIterator::from_block(Arc::clone(&store), head_hash)?);
for (block_hash, state_hash, slot) in iterator {
if slot < old_finalized_slot {
// We must assume here any candidate chains include old_finalized_block_hash,
// i.e. there aren't any forks starting at a block that is a strict ancestor of
// old_finalized_block_hash.
break;
}
match newly_finalized_blocks.get(&block_hash.into()).copied() {
// Block is not finalized, mark it and its state for deletion
None => {
potentially_abandoned_blocks.push((
slot,
Some(block_hash.into()),
Some(state_hash.into()),
));
}
Some(finalized_slot) => {
// Block root is finalized, and we have reached the slot it was finalized
// at: we've hit a shared part of the chain.
if finalized_slot == slot {
// The first finalized block of a candidate chain lies after (in terms
// of slots order) the newly finalized block. It's not a candidate for
// prunning.
if finalized_slot == new_finalized_slot {
potentially_abandoned_blocks.clear();
potentially_abandoned_head.take();
}
break;
}
// Block root is finalized, but we're at a skip slot: delete the state only.
else {
potentially_abandoned_blocks.push((
slot,
None,
Some(state_hash.into()),
));
}
}
}
}
abandoned_heads.extend(potentially_abandoned_head.into_iter());
if !potentially_abandoned_blocks.is_empty() {
abandoned_blocks.extend(
potentially_abandoned_blocks
.iter()
.filter_map(|(_, maybe_block_hash, _)| *maybe_block_hash),
);
abandoned_states.extend(potentially_abandoned_blocks.iter().filter_map(
|(slot, _, maybe_state_hash)| match maybe_state_hash {
None => None,
Some(state_hash) => Some((*slot, *state_hash)),
},
));
}
}
// XXX Should be performed atomically, see
// https://github.com/sigp/lighthouse/issues/692
for block_hash in abandoned_blocks.into_iter() {
store.delete_block(&block_hash.into())?;
}
for (slot, state_hash) in abandoned_states.into_iter() {
store.delete_state(&state_hash.into(), slot)?;
}
for head_hash in abandoned_heads.into_iter() {
head_tracker.remove_head(head_hash);
}
Ok(())
}
}
/// Migrator that does nothing, for stores that don't need migration.
pub struct NullMigrator;
impl<E: EthSpec> Migrate<SimpleDiskStore<E>, E> for NullMigrator {
fn new(_: Arc<SimpleDiskStore<E>>, _: Logger) -> Self {
NullMigrator
}
}
impl<E: EthSpec> Migrate<MemoryStore<E>, E> for NullMigrator {
fn new(_: Arc<MemoryStore<E>>, _: Logger) -> Self {
NullMigrator
}
}
/// Migrator that immediately calls the store's migration function, blocking the current execution.
///
/// Mostly useful for tests.
pub struct BlockingMigrator<S> {
db: Arc<S>,
}
impl<E: EthSpec, S: Store<E>> Migrate<S, E> for BlockingMigrator<S> {
fn new(db: Arc<S>, _: Logger) -> Self {
BlockingMigrator { db }
}
fn process_finalization(
&self,
state_root: Hash256,
new_finalized_state: BeaconState<E>,
_max_finality_distance: u64,
head_tracker: Arc<HeadTracker>,
old_finalized_block_hash: SignedBeaconBlockHash,
new_finalized_block_hash: SignedBeaconBlockHash,
) {
if let Err(e) = S::process_finalization(self.db.clone(), state_root, &new_finalized_state) {
// This migrator is only used for testing, so we just log to stderr without a logger.
eprintln!("Migration error: {:?}", e);
}
if let Err(e) = Self::prune_abandoned_forks(
self.db.clone(),
head_tracker,
old_finalized_block_hash,
new_finalized_block_hash,
new_finalized_state.slot,
) {
eprintln!("Pruning error: {:?}", e);
}
}
}
type MpscSender<E> = mpsc::Sender<(
Hash256,
BeaconState<E>,
Arc<HeadTracker>,
SignedBeaconBlockHash,
SignedBeaconBlockHash,
Slot,
)>;
/// Migrator that runs a background thread to migrate state from the hot to the cold database.
pub struct BackgroundMigrator<E: EthSpec> {
db: Arc<DiskStore<E>>,
tx_thread: Mutex<(MpscSender<E>, thread::JoinHandle<()>)>,
log: Logger,
}
impl<E: EthSpec> Migrate<DiskStore<E>, E> for BackgroundMigrator<E> {
fn new(db: Arc<DiskStore<E>>, log: Logger) -> Self {
let tx_thread = Mutex::new(Self::spawn_thread(db.clone(), log.clone()));
Self { db, tx_thread, log }
}
/// Perform the freezing operation on the database,
fn process_finalization(
&self,
finalized_state_root: Hash256,
new_finalized_state: BeaconState<E>,
max_finality_distance: u64,
head_tracker: Arc<HeadTracker>,
old_finalized_block_hash: SignedBeaconBlockHash,
new_finalized_block_hash: SignedBeaconBlockHash,
) {
if !self.needs_migration(new_finalized_state.slot, max_finality_distance) {
return;
}
let (ref mut tx, ref mut thread) = *self.tx_thread.lock();
let new_finalized_slot = new_finalized_state.slot;
if let Err(tx_err) = tx.send((
finalized_state_root,
new_finalized_state,
head_tracker,
old_finalized_block_hash,
new_finalized_block_hash,
new_finalized_slot,
)) {
let (new_tx, new_thread) = Self::spawn_thread(self.db.clone(), self.log.clone());
drop(mem::replace(tx, new_tx));
let old_thread = mem::replace(thread, new_thread);
// Join the old thread, which will probably have panicked, or may have
// halted normally just now as a result of us dropping the old `mpsc::Sender`.
if let Err(thread_err) = old_thread.join() {
warn!(
self.log,
"Migration thread died, so it was restarted";
"reason" => format!("{:?}", thread_err)
);
}
// Retry at most once, we could recurse but that would risk overflowing the stack.
let _ = tx.send(tx_err.0);
}
}
}
impl<E: EthSpec> BackgroundMigrator<E> {
/// Return true if a migration needs to be performed, given a new `finalized_slot`.
fn needs_migration(&self, finalized_slot: Slot, max_finality_distance: u64) -> bool {
let finality_distance = finalized_slot - self.db.get_split_slot();
finality_distance > max_finality_distance
}
/// Spawn a new child thread to run the migration process.
///
/// Return a channel handle for sending new finalized states to the thread.
fn spawn_thread(
db: Arc<DiskStore<E>>,
log: Logger,
) -> (
mpsc::Sender<(
Hash256,
BeaconState<E>,
Arc<HeadTracker>,
SignedBeaconBlockHash,
SignedBeaconBlockHash,
Slot,
)>,
thread::JoinHandle<()>,
) {
let (tx, rx) = mpsc::channel();
let thread = thread::spawn(move || {
while let Ok((
state_root,
state,
head_tracker,
old_finalized_block_hash,
new_finalized_block_hash,
new_finalized_slot,
)) = rx.recv()
{
match DiskStore::process_finalization(db.clone(), state_root, &state) {
Ok(()) => {}
Err(Error::HotColdDBError(HotColdDBError::FreezeSlotUnaligned(slot))) => {
debug!(
log,
"Database migration postponed, unaligned finalized block";
"slot" => slot.as_u64()
);
}
Err(e) => {
warn!(
log,
"Database migration failed";
"error" => format!("{:?}", e)
);
}
};
match Self::prune_abandoned_forks(
db.clone(),
head_tracker,
old_finalized_block_hash,
new_finalized_block_hash,
new_finalized_slot,
) {
Ok(()) => {}
Err(e) => warn!(log, "Block pruning failed: {:?}", e),
}
}
});
(tx, thread)
}
}

144
beacon_node/beacon_chain/src/test_utils.rs
View File

@ -1,6 +1,7 @@
pub use crate::beacon_chain::{
BEACON_CHAIN_DB_KEY, ETH1_CACHE_DB_KEY, FORK_CHOICE_DB_KEY, OP_POOL_DB_KEY,
};
use crate::migrate::{BlockingMigrator, Migrate, NullMigrator};
pub use crate::persisted_beacon_chain::PersistedBeaconChain;
use crate::{
builder::{BeaconChainBuilder, Witness},
@ -14,16 +15,16 @@ use sloggers::{null::NullLoggerBuilder, Build};
use slot_clock::TestingSlotClock;
use state_processing::per_slot_processing;
use std::borrow::Cow;
use std::collections::HashMap;
use std::sync::Arc;
use std::time::Duration;
use store::{
migrate::{BlockingMigrator, NullMigrator},
DiskStore, MemoryStore, Migrate, Store,
};
use store::{DiskStore, MemoryStore, Store};
use tempfile::{tempdir, TempDir};
use tree_hash::TreeHash;
use types::{
AggregateSignature, Attestation, BeaconState, ChainSpec, Domain, EthSpec, Hash256, Keypair,
SecretKey, Signature, SignedBeaconBlock, SignedRoot, Slot,
AggregateSignature, Attestation, BeaconState, BeaconStateHash, ChainSpec, Domain, EthSpec,
Hash256, Keypair, SecretKey, Signature, SignedBeaconBlock, SignedBeaconBlockHash, SignedRoot,
Slot,
};
pub use types::test_utils::generate_deterministic_keypairs;
@ -135,7 +136,10 @@ impl<E: EthSpec> BeaconChainHarness<DiskHarnessType<E>> {
.logger(log.clone())
.custom_spec(spec.clone())
.store(store.clone())
.store_migrator(<BlockingMigrator<_> as Migrate<_, E>>::new(store))
.store_migrator(<BlockingMigrator<_> as Migrate<_, E>>::new(
store,
log.clone(),
))
.data_dir(data_dir.path().to_path_buf())
.genesis_state(
interop_genesis_state::<E>(&keypairs, HARNESS_GENESIS_TIME, &spec)
@ -175,7 +179,10 @@ impl<E: EthSpec> BeaconChainHarness<DiskHarnessType<E>> {
.logger(log.clone())
.custom_spec(spec)
.store(store.clone())
.store_migrator(<BlockingMigrator<_> as Migrate<_, E>>::new(store))
.store_migrator(<BlockingMigrator<_> as Migrate<_, E>>::new(
store,
log.clone(),
))
.data_dir(data_dir.path().to_path_buf())
.resume_from_db()
.expect("should resume beacon chain from db")
@ -272,6 +279,123 @@ where
head_block_root.expect("did not produce any blocks")
}
/// Returns current canonical head slot
pub fn get_chain_slot(&self) -> Slot {
self.chain.slot().unwrap()
}
/// Returns current canonical head state
pub fn get_head_state(&self) -> BeaconState<E> {
self.chain.head().unwrap().beacon_state
}
/// Adds a single block (synchronously) onto either the canonical chain (block_strategy ==
/// OnCanonicalHead) or a fork (block_strategy == ForkCanonicalChainAt).
pub fn add_block(
&self,
state: &BeaconState<E>,
block_strategy: BlockStrategy,
slot: Slot,
validators: &[usize],
) -> (SignedBeaconBlockHash, BeaconState<E>) {
while self.chain.slot().expect("should have a slot") < slot {
self.advance_slot();
}
let (block, new_state) = self.build_block(state.clone(), slot, block_strategy);
let block_root = self
.chain
.process_block(block)
.expect("should not error during block processing");
self.chain.fork_choice().expect("should find head");
let attestation_strategy = AttestationStrategy::SomeValidators(validators.to_vec());
self.add_free_attestations(&attestation_strategy, &new_state, block_root, slot);
(block_root.into(), new_state)
}
/// `add_block()` repeated `num_blocks` times.
pub fn add_blocks(
&self,
mut state: BeaconState<E>,
mut slot: Slot,
num_blocks: usize,
attesting_validators: &[usize],
block_strategy: BlockStrategy,
) -> (
HashMap<Slot, SignedBeaconBlockHash>,
HashMap<Slot, BeaconStateHash>,
Slot,
SignedBeaconBlockHash,
BeaconState<E>,
) {
let mut blocks: HashMap<Slot, SignedBeaconBlockHash> = HashMap::with_capacity(num_blocks);
let mut states: HashMap<Slot, BeaconStateHash> = HashMap::with_capacity(num_blocks);
for _ in 0..num_blocks {
let (new_root_hash, new_state) =
self.add_block(&state, block_strategy, slot, attesting_validators);
blocks.insert(slot, new_root_hash);
states.insert(slot, new_state.tree_hash_root().into());
state = new_state;
slot += 1;
}
let head_hash = blocks[&(slot - 1)];
(blocks, states, slot, head_hash, state)
}
/// A wrapper on `add_blocks()` to avoid passing enums explicitly.
pub fn add_canonical_chain_blocks(
&self,
state: BeaconState<E>,
slot: Slot,
num_blocks: usize,
attesting_validators: &[usize],
) -> (
HashMap<Slot, SignedBeaconBlockHash>,
HashMap<Slot, BeaconStateHash>,
Slot,
SignedBeaconBlockHash,
BeaconState<E>,
) {
let block_strategy = BlockStrategy::OnCanonicalHead;
self.add_blocks(
state,
slot,
num_blocks,
attesting_validators,
block_strategy,
)
}
/// A wrapper on `add_blocks()` to avoid passing enums explicitly.
pub fn add_stray_blocks(
&self,
state: BeaconState<E>,
slot: Slot,
num_blocks: usize,
attesting_validators: &[usize],
) -> (
HashMap<Slot, SignedBeaconBlockHash>,
HashMap<Slot, BeaconStateHash>,
Slot,
SignedBeaconBlockHash,
BeaconState<E>,
) {
let block_strategy = BlockStrategy::ForkCanonicalChainAt {
previous_slot: slot,
first_slot: slot + 2,
};
self.add_blocks(
state,
slot + 2,
num_blocks,
attesting_validators,
block_strategy,
)
}
/// Returns a newly created block, signed by the proposer for the given slot.
fn build_block(
&self,
@ -347,7 +471,9 @@ where
.process_attestation(attestation, AttestationType::Aggregated)
.expect("should not error during attestation processing")
{
AttestationProcessingOutcome::Processed => (),
// PastEpoch can occur if we fork over several epochs
AttestationProcessingOutcome::Processed
| AttestationProcessingOutcome::PastEpoch { .. } => (),
other => panic!("did not successfully process attestation: {:?}", other),
}
});

4
beacon_node/beacon_chain/tests/attestation_production.rs
View File

@ -40,8 +40,8 @@ fn produces_attestations() {
let state = &harness.chain.head().expect("should get head").beacon_state;
assert_eq!(state.slot, num_blocks_produced, "head should have updated");
assert!(
state.finalized_checkpoint.epoch > 0,
assert_ne!(
state.finalized_checkpoint.epoch, 0,
"head should have updated"
);

871
beacon_node/beacon_chain/tests/store_tests.rs
View File

@ -6,9 +6,12 @@ extern crate lazy_static;
use beacon_chain::test_utils::{
AttestationStrategy, BeaconChainHarness, BlockStrategy, DiskHarnessType,
};
use beacon_chain::{AttestationProcessingOutcome, AttestationType};
use beacon_chain::BeaconSnapshot;
use beacon_chain::{AttestationProcessingOutcome, AttestationType, StateSkipConfig};
use rand::Rng;
use sloggers::{null::NullLoggerBuilder, Build};
use std::collections::HashMap;
use std::collections::HashSet;
use std::sync::Arc;
use store::{
iter::{BlockRootsIterator, StateRootsIterator},
@ -20,11 +23,12 @@ use types::test_utils::{SeedableRng, XorShiftRng};
use types::*;
// Should ideally be divisible by 3.
pub const VALIDATOR_COUNT: usize = 24;
pub const LOW_VALIDATOR_COUNT: usize = 24;
pub const HIGH_VALIDATOR_COUNT: usize = 64;
lazy_static! {
/// A cached set of keys.
static ref KEYPAIRS: Vec<Keypair> = types::test_utils::generate_deterministic_keypairs(VALIDATOR_COUNT);
static ref KEYPAIRS: Vec<Keypair> = types::test_utils::generate_deterministic_keypairs(HIGH_VALIDATOR_COUNT);
}
type E = MinimalEthSpec;
@ -57,7 +61,7 @@ fn full_participation_no_skips() {
let num_blocks_produced = E::slots_per_epoch() * 5;
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(store.clone(), VALIDATOR_COUNT);
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
harness.extend_chain(
num_blocks_produced as usize,
@ -77,7 +81,7 @@ fn randomised_skips() {
let mut num_blocks_produced = 0;
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(store.clone(), VALIDATOR_COUNT);
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
let rng = &mut XorShiftRng::from_seed([42; 16]);
let mut head_slot = 0;
@ -113,14 +117,16 @@ fn randomised_skips() {
fn long_skip() {
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(store.clone(), VALIDATOR_COUNT);
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
// Number of blocks to create in the first run, intentionally not falling on an epoch
// boundary in order to check that the DB hot -> cold migration is capable of reaching
// back across the skip distance, and correctly migrating those extra non-finalized states.
let initial_blocks = E::slots_per_epoch() * 5 + E::slots_per_epoch() / 2;
let skip_slots = E::slots_per_historical_root() as u64 * 8;
let final_blocks = E::slots_per_epoch() * 4;
// Create the minimum ~2.5 epochs of extra blocks required to re-finalize the chain.
// Having this set lower ensures that we start justifying and finalizing quickly after a skip.
let final_blocks = 2 * E::slots_per_epoch() + E::slots_per_epoch() / 2;
harness.extend_chain(
initial_blocks as usize,
@ -223,7 +229,7 @@ fn split_slot_restore() {
let split_slot = {
let store = get_store(&db_path);
let harness = get_harness(store.clone(), VALIDATOR_COUNT);
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
let num_blocks = 4 * E::slots_per_epoch();
@ -251,10 +257,10 @@ fn epoch_boundary_state_attestation_processing() {
let num_blocks_produced = E::slots_per_epoch() * 5;
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(store.clone(), VALIDATOR_COUNT);
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
let late_validators = vec![0, 1];
let timely_validators = (2..VALIDATOR_COUNT).collect::<Vec<_>>();
let timely_validators = (2..LOW_VALIDATOR_COUNT).collect::<Vec<_>>();
let mut late_attestations = vec![];
@ -333,7 +339,7 @@ fn epoch_boundary_state_attestation_processing() {
fn delete_blocks_and_states() {
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(store.clone(), VALIDATOR_COUNT);
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
let unforked_blocks = 4 * E::slots_per_epoch();
@ -345,13 +351,11 @@ fn delete_blocks_and_states() {
);
// Create a fork post-finalization.
let two_thirds = (VALIDATOR_COUNT / 3) * 2;
let two_thirds = (LOW_VALIDATOR_COUNT / 3) * 2;
let honest_validators: Vec<usize> = (0..two_thirds).collect();
let faulty_validators: Vec<usize> = (two_thirds..VALIDATOR_COUNT).collect();
let faulty_validators: Vec<usize> = (two_thirds..LOW_VALIDATOR_COUNT).collect();
// NOTE: should remove this -1 and/or write a similar test once #845 is resolved
// https://github.com/sigp/lighthouse/issues/845
let fork_blocks = 2 * E::slots_per_epoch() - 1;
let fork_blocks = 2 * E::slots_per_epoch();
let (honest_head, faulty_head) = harness.generate_two_forks_by_skipping_a_block(
&honest_validators,
@ -425,6 +429,825 @@ fn delete_blocks_and_states() {
check_chain_dump(&harness, unforked_blocks + fork_blocks + 1);
}
// Check that we never produce invalid blocks when there is deep forking that changes the shuffling.
// See https://github.com/sigp/lighthouse/issues/845
fn multi_epoch_fork_valid_blocks_test(
initial_blocks: usize,
num_fork1_blocks: usize,
num_fork2_blocks: usize,
num_fork1_validators: usize,
) -> (TempDir, TestHarness, Hash256, Hash256) {
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
// Create the initial portion of the chain
if initial_blocks > 0 {
harness.extend_chain(
initial_blocks,
BlockStrategy::OnCanonicalHead,
AttestationStrategy::AllValidators,
);
}
assert!(num_fork1_validators <= LOW_VALIDATOR_COUNT);
let fork1_validators: Vec<usize> = (0..num_fork1_validators).collect();
let fork2_validators: Vec<usize> = (num_fork1_validators..LOW_VALIDATOR_COUNT).collect();
let (head1, head2) = harness.generate_two_forks_by_skipping_a_block(
&fork1_validators,
&fork2_validators,
num_fork1_blocks,
num_fork2_blocks,
);
(db_path, harness, head1, head2)
}
// This is the minimal test of block production with different shufflings.
#[test]
fn block_production_different_shuffling_early() {
let slots_per_epoch = E::slots_per_epoch() as usize;
multi_epoch_fork_valid_blocks_test(
slots_per_epoch - 2,
slots_per_epoch + 3,
slots_per_epoch + 3,
LOW_VALIDATOR_COUNT / 2,
);
}
#[test]
fn block_production_different_shuffling_long() {
let slots_per_epoch = E::slots_per_epoch() as usize;
multi_epoch_fork_valid_blocks_test(
2 * slots_per_epoch - 2,
3 * slots_per_epoch,
3 * slots_per_epoch,
LOW_VALIDATOR_COUNT / 2,
);
}
// Check that the op pool safely includes multiple attestations per block when necessary.
// This checks the correctness of the shuffling compatibility memoization.
#[test]
fn multiple_attestations_per_block() {
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(store, HIGH_VALIDATOR_COUNT);
let chain = &harness.chain;
harness.extend_chain(
MainnetEthSpec::slots_per_epoch() as usize * 3,
BlockStrategy::OnCanonicalHead,
AttestationStrategy::AllValidators,
);
let head = chain.head().unwrap();
let committees_per_slot = head
.beacon_state
.get_committee_count_at_slot(head.beacon_state.slot)
.unwrap();
assert!(committees_per_slot > 1);
for snapshot in chain.chain_dump().unwrap() {
assert_eq!(
snapshot.beacon_block.message.body.attestations.len() as u64,
if snapshot.beacon_block.slot() <= 1 {
0
} else {
committees_per_slot
}
);
}
}
#[test]
fn shuffling_compatible_linear_chain() {
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
// Skip the block at the end of the first epoch.
let head_block_root = harness.extend_chain(
4 * E::slots_per_epoch() as usize,
BlockStrategy::OnCanonicalHead,
AttestationStrategy::AllValidators,
);
check_shuffling_compatible(
&harness,
&get_state_for_block(&harness, head_block_root),
head_block_root,
true,
true,
None,
None,
);
}
#[test]
fn shuffling_compatible_missing_pivot_block() {
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
// Skip the block at the end of the first epoch.
harness.extend_chain(
E::slots_per_epoch() as usize - 2,
BlockStrategy::OnCanonicalHead,
AttestationStrategy::AllValidators,
);
harness.advance_slot();
harness.advance_slot();
let head_block_root = harness.extend_chain(
2 * E::slots_per_epoch() as usize,
BlockStrategy::OnCanonicalHead,
AttestationStrategy::AllValidators,
);
check_shuffling_compatible(
&harness,
&get_state_for_block(&harness, head_block_root),
head_block_root,
true,
true,
Some(E::slots_per_epoch() - 2),
Some(E::slots_per_epoch() - 2),
);
}
#[test]
fn shuffling_compatible_simple_fork() {
let slots_per_epoch = E::slots_per_epoch() as usize;
let (db_path, harness, head1, head2) = multi_epoch_fork_valid_blocks_test(
2 * slots_per_epoch,
3 * slots_per_epoch,
3 * slots_per_epoch,
LOW_VALIDATOR_COUNT / 2,
);
let head1_state = get_state_for_block(&harness, head1);
let head2_state = get_state_for_block(&harness, head2);
check_shuffling_compatible(&harness, &head1_state, head1, true, true, None, None);
check_shuffling_compatible(&harness, &head1_state, head2, false, false, None, None);
check_shuffling_compatible(&harness, &head2_state, head1, false, false, None, None);
check_shuffling_compatible(&harness, &head2_state, head2, true, true, None, None);
drop(db_path);
}
#[test]
fn shuffling_compatible_short_fork() {
let slots_per_epoch = E::slots_per_epoch() as usize;
let (db_path, harness, head1, head2) = multi_epoch_fork_valid_blocks_test(
2 * slots_per_epoch - 2,
slots_per_epoch + 2,
slots_per_epoch + 2,
LOW_VALIDATOR_COUNT / 2,
);
let head1_state = get_state_for_block(&harness, head1);
let head2_state = get_state_for_block(&harness, head2);
check_shuffling_compatible(&harness, &head1_state, head1, true, true, None, None);
check_shuffling_compatible(&harness, &head1_state, head2, false, true, None, None);
// NOTE: don't check this case, as block 14 from the first chain appears valid on the second
// chain due to it matching the second chain's block 15.
// check_shuffling_compatible(&harness, &head2_state, head1, false, true, None, None);
check_shuffling_compatible(
&harness,
&head2_state,
head2,
true,
true,
// Required because of the skipped slot.
Some(2 * E::slots_per_epoch() - 2),
None,
);
drop(db_path);
}
fn get_state_for_block(harness: &TestHarness, block_root: Hash256) -> BeaconState<E> {
let head_block = harness.chain.get_block(&block_root).unwrap().unwrap();
harness
.chain
.get_state(&head_block.state_root(), Some(head_block.slot()))
.unwrap()
.unwrap()
}
/// Check the invariants that apply to `shuffling_is_compatible`.
fn check_shuffling_compatible(
harness: &TestHarness,
head_state: &BeaconState<E>,
head_block_root: Hash256,
current_epoch_valid: bool,
previous_epoch_valid: bool,
current_epoch_cutoff_slot: Option<u64>,
previous_epoch_cutoff_slot: Option<u64>,
) {
let shuffling_lookahead = harness.chain.spec.min_seed_lookahead.as_u64() + 1;
let current_pivot_slot =
(head_state.current_epoch() - shuffling_lookahead).end_slot(E::slots_per_epoch());
let previous_pivot_slot =
(head_state.previous_epoch() - shuffling_lookahead).end_slot(E::slots_per_epoch());
for (block_root, slot) in harness
.chain
.rev_iter_block_roots_from(head_block_root)
.unwrap()
{
// Shuffling is compatible targeting the current epoch,
// iff slot is greater than or equal to the current epoch pivot block
assert_eq!(
harness.chain.shuffling_is_compatible(
&block_root,
head_state.current_epoch(),
&head_state
),
current_epoch_valid
&& slot >= current_epoch_cutoff_slot.unwrap_or(current_pivot_slot.as_u64())
);
// Similarly for the previous epoch
assert_eq!(
harness.chain.shuffling_is_compatible(
&block_root,
head_state.previous_epoch(),
&head_state
),
previous_epoch_valid
&& slot >= previous_epoch_cutoff_slot.unwrap_or(previous_pivot_slot.as_u64())
);
// Targeting the next epoch should always return false
assert_eq!(
harness.chain.shuffling_is_compatible(
&block_root,
head_state.current_epoch() + 1,
&head_state
),
false
);
// Targeting two epochs before the current epoch should also always return false
if head_state.current_epoch() >= 2 {
assert_eq!(
harness.chain.shuffling_is_compatible(
&block_root,
head_state.current_epoch() - 2,
&head_state
),
false
);
}
}
}
// Ensure blocks from abandoned forks are pruned from the Hot DB
#[test]
fn prunes_abandoned_fork_between_two_finalized_checkpoints() {
const VALIDATOR_COUNT: usize = 24;
const VALIDATOR_SUPERMAJORITY: usize = (VALIDATOR_COUNT / 3) * 2;
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(Arc::clone(&store), VALIDATOR_COUNT);
const HONEST_VALIDATOR_COUNT: usize = VALIDATOR_SUPERMAJORITY;
let honest_validators: Vec<usize> = (0..HONEST_VALIDATOR_COUNT).collect();
let faulty_validators: Vec<usize> = (HONEST_VALIDATOR_COUNT..VALIDATOR_COUNT).collect();
let slots_per_epoch: usize = MinimalEthSpec::slots_per_epoch() as usize;
let slot = harness.get_chain_slot();
let state = harness.get_head_state();
let (canonical_blocks_pre_finalization, _, slot, _, state) =
harness.add_canonical_chain_blocks(state, slot, slots_per_epoch, &honest_validators);
let (stray_blocks, stray_states, _, stray_head, _) = harness.add_stray_blocks(
harness.get_head_state(),
slot,
slots_per_epoch - 1,
&faulty_validators,
);
// Precondition: Ensure all stray_blocks blocks are still known
for &block_hash in stray_blocks.values() {
let block = harness.chain.get_block(&block_hash.into()).unwrap();
assert!(
block.is_some(),
"stray block {} should be still present",
block_hash
);
}
for (&slot, &state_hash) in &stray_states {
let state = harness
.chain
.get_state(&state_hash.into(), Some(slot))
.unwrap();
assert!(
state.is_some(),
"stray state {} at slot {} should be still present",
state_hash,
slot
);
}
// Precondition: Only genesis is finalized
let chain_dump = harness.chain.chain_dump().unwrap();
assert_eq!(
get_finalized_epoch_boundary_blocks(&chain_dump),
vec![Hash256::zero().into()].into_iter().collect(),
);
assert!(harness.chain.knows_head(&stray_head));
// Trigger finalization
let (canonical_blocks_post_finalization, _, _, _, _) =
harness.add_canonical_chain_blocks(state, slot, slots_per_epoch * 5, &honest_validators);
// Postcondition: New blocks got finalized
let chain_dump = harness.chain.chain_dump().unwrap();
let finalized_blocks = get_finalized_epoch_boundary_blocks(&chain_dump);
assert_eq!(
finalized_blocks,
vec![
Hash256::zero().into(),
canonical_blocks_pre_finalization[&Slot::new(slots_per_epoch as u64)],
canonical_blocks_post_finalization[&Slot::new((slots_per_epoch * 2) as u64)],
]
.into_iter()
.collect()
);
// Postcondition: Ensure all stray_blocks blocks have been pruned
for &block_hash in stray_blocks.values() {
let block = harness.chain.get_block(&block_hash.into()).unwrap();
assert!(
block.is_none(),
"abandoned block {} should have been pruned",
block_hash
);
}
for (&slot, &state_hash) in &stray_states {
let state = harness.chain.get_state(&state_hash.into(), None).unwrap();
assert!(
state.is_none(),
"stray state {} at slot {} should have been deleted",
state_hash,
slot
);
}
assert!(!harness.chain.knows_head(&stray_head));
}
#[test]
fn pruning_does_not_touch_abandoned_block_shared_with_canonical_chain() {
const VALIDATOR_COUNT: usize = 24;
const VALIDATOR_SUPERMAJORITY: usize = (VALIDATOR_COUNT / 3) * 2;
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(Arc::clone(&store), VALIDATOR_COUNT);
const HONEST_VALIDATOR_COUNT: usize = VALIDATOR_SUPERMAJORITY;
let honest_validators: Vec<usize> = (0..HONEST_VALIDATOR_COUNT).collect();
let faulty_validators: Vec<usize> = (HONEST_VALIDATOR_COUNT..VALIDATOR_COUNT).collect();
let all_validators: Vec<usize> = (0..VALIDATOR_COUNT).collect();
let slots_per_epoch: usize = MinimalEthSpec::slots_per_epoch() as usize;
// Fill up 0th epoch
let slot = harness.get_chain_slot();
let state = harness.get_head_state();
let (canonical_blocks_zeroth_epoch, _, slot, _, state) =
harness.add_canonical_chain_blocks(state, slot, slots_per_epoch, &honest_validators);
// Fill up 1st epoch
let (_, _, canonical_slot, shared_head, canonical_state) =
harness.add_canonical_chain_blocks(state, slot, 1, &all_validators);
let (stray_blocks, stray_states, _, stray_head, _) = harness.add_stray_blocks(
canonical_state.clone(),
canonical_slot,
1,
&faulty_validators,
);
// Preconditions
for &block_hash in stray_blocks.values() {
let block = harness.chain.get_block(&block_hash.into()).unwrap();
assert!(
block.is_some(),
"stray block {} should be still present",
block_hash
);
}
for (&slot, &state_hash) in &stray_states {
let state = harness.chain.get_state(&state_hash.into(), None).unwrap();
assert!(
state.is_some(),
"stray state {} at slot {} should be still present",
state_hash,
slot
);
}
let chain_dump = harness.chain.chain_dump().unwrap();
assert_eq!(
get_finalized_epoch_boundary_blocks(&chain_dump),
vec![Hash256::zero().into()].into_iter().collect(),
);
assert!(get_blocks(&chain_dump).contains(&shared_head));
// Trigger finalization
let (canonical_blocks, _, _, _, _) = harness.add_canonical_chain_blocks(
canonical_state,
canonical_slot,
slots_per_epoch * 5,
&honest_validators,
);
// Postconditions
let chain_dump = harness.chain.chain_dump().unwrap();
let finalized_blocks = get_finalized_epoch_boundary_blocks(&chain_dump);
assert_eq!(
finalized_blocks,
vec![
Hash256::zero().into(),
canonical_blocks_zeroth_epoch[&Slot::new(slots_per_epoch as u64)],
canonical_blocks[&Slot::new((slots_per_epoch * 2) as u64)],
]
.into_iter()
.collect()
);
for &block_hash in stray_blocks.values() {
assert!(
harness
.chain
.get_block(&block_hash.into())
.unwrap()
.is_none(),
"stray block {} should have been pruned",
block_hash,
);
}
for (&slot, &state_hash) in &stray_states {
let state = harness.chain.get_state(&state_hash.into(), None).unwrap();
assert!(
state.is_none(),
"stray state {} at slot {} should have been deleted",
state_hash,
slot
);
}
assert!(!harness.chain.knows_head(&stray_head));
assert!(get_blocks(&chain_dump).contains(&shared_head));
}
#[test]
fn pruning_does_not_touch_blocks_prior_to_finalization() {
const VALIDATOR_COUNT: usize = 24;
const VALIDATOR_SUPERMAJORITY: usize = (VALIDATOR_COUNT / 3) * 2;
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(Arc::clone(&store), VALIDATOR_COUNT);
const HONEST_VALIDATOR_COUNT: usize = VALIDATOR_SUPERMAJORITY;
let honest_validators: Vec<usize> = (0..HONEST_VALIDATOR_COUNT).collect();
let faulty_validators: Vec<usize> = (HONEST_VALIDATOR_COUNT..VALIDATOR_COUNT).collect();
let slots_per_epoch: usize = MinimalEthSpec::slots_per_epoch() as usize;
// Fill up 0th epoch with canonical chain blocks
let slot = harness.get_chain_slot();
let state = harness.get_head_state();
let (canonical_blocks_zeroth_epoch, _, slot, _, state) =
harness.add_canonical_chain_blocks(state, slot, slots_per_epoch, &honest_validators);
// Fill up 1st epoch. Contains a fork.
let (stray_blocks, stray_states, _, stray_head, _) =
harness.add_stray_blocks(state.clone(), slot, slots_per_epoch - 1, &faulty_validators);
// Preconditions
for &block_hash in stray_blocks.values() {
let block = harness.chain.get_block(&block_hash.into()).unwrap();
assert!(
block.is_some(),
"stray block {} should be still present",
block_hash
);
}
for (&slot, &state_hash) in &stray_states {
let state = harness.chain.get_state(&state_hash.into(), None).unwrap();
assert!(
state.is_some(),
"stray state {} at slot {} should be still present",
state_hash,
slot
);
}
let chain_dump = harness.chain.chain_dump().unwrap();
assert_eq!(
get_finalized_epoch_boundary_blocks(&chain_dump),
vec![Hash256::zero().into()].into_iter().collect(),
);
// Trigger finalization
let (_, _, _, _, _) =
harness.add_canonical_chain_blocks(state, slot, slots_per_epoch * 4, &honest_validators);
// Postconditions
let chain_dump = harness.chain.chain_dump().unwrap();
let finalized_blocks = get_finalized_epoch_boundary_blocks(&chain_dump);
assert_eq!(
finalized_blocks,
vec![
Hash256::zero().into(),
canonical_blocks_zeroth_epoch[&Slot::new(slots_per_epoch as u64)],
]
.into_iter()
.collect()
);
for &block_hash in stray_blocks.values() {
let block = harness.chain.get_block(&block_hash.into()).unwrap();
assert!(
block.is_some(),
"stray block {} should be still present",
block_hash
);
}
for (&slot, &state_hash) in &stray_states {
let state = harness.chain.get_state(&state_hash.into(), None).unwrap();
assert!(
state.is_some(),
"stray state {} at slot {} should be still present",
state_hash,
slot
);
}
assert!(harness.chain.knows_head(&stray_head));
}
#[test]
fn prunes_fork_running_past_finalized_checkpoint() {
const VALIDATOR_COUNT: usize = 24;
const VALIDATOR_SUPERMAJORITY: usize = (VALIDATOR_COUNT / 3) * 2;
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(Arc::clone(&store), VALIDATOR_COUNT);
const HONEST_VALIDATOR_COUNT: usize = VALIDATOR_SUPERMAJORITY;
let honest_validators: Vec<usize> = (0..HONEST_VALIDATOR_COUNT).collect();
let faulty_validators: Vec<usize> = (HONEST_VALIDATOR_COUNT..VALIDATOR_COUNT).collect();
let slots_per_epoch: usize = MinimalEthSpec::slots_per_epoch() as usize;
// Fill up 0th epoch with canonical chain blocks
let slot = harness.get_chain_slot();
let state = harness.get_head_state();
let (canonical_blocks_zeroth_epoch, _, slot, _, state) =
harness.add_canonical_chain_blocks(state, slot, slots_per_epoch, &honest_validators);
// Fill up 1st epoch. Contains a fork.
let (stray_blocks_first_epoch, stray_states_first_epoch, stray_slot, _, stray_state) =
harness.add_stray_blocks(state.clone(), slot, slots_per_epoch, &faulty_validators);
let (canonical_blocks_first_epoch, _, canonical_slot, _, canonical_state) =
harness.add_canonical_chain_blocks(state, slot, slots_per_epoch, &honest_validators);
// Fill up 2nd epoch. Extends both the canonical chain and the fork.
let (stray_blocks_second_epoch, stray_states_second_epoch, _, stray_head, _) = harness
.add_stray_blocks(
stray_state,
stray_slot,
slots_per_epoch - 1,
&faulty_validators,
);
// Precondition: Ensure all stray_blocks blocks are still known
let stray_blocks: HashMap<Slot, SignedBeaconBlockHash> = stray_blocks_first_epoch
.into_iter()
.chain(stray_blocks_second_epoch.into_iter())
.collect();
let stray_states: HashMap<Slot, BeaconStateHash> = stray_states_first_epoch
.into_iter()
.chain(stray_states_second_epoch.into_iter())
.collect();
for &block_hash in stray_blocks.values() {
let block = harness.chain.get_block(&block_hash.into()).unwrap();
assert!(
block.is_some(),
"stray block {} should be still present",
block_hash
);
}
for (&slot, &state_hash) in &stray_states {
let state = harness.chain.get_state(&state_hash.into(), None).unwrap();
assert!(
state.is_some(),
"stray state {} at slot {} should be still present",
state_hash,
slot
);
}
// Precondition: Only genesis is finalized
let chain_dump = harness.chain.chain_dump().unwrap();
assert_eq!(
get_finalized_epoch_boundary_blocks(&chain_dump),
vec![Hash256::zero().into()].into_iter().collect(),
);
assert!(harness.chain.knows_head(&stray_head));
// Trigger finalization
let (canonical_blocks_second_epoch, _, _, _, _) = harness.add_canonical_chain_blocks(
canonical_state,
canonical_slot,
slots_per_epoch * 4,
&honest_validators,
);
// Postconditions
let canonical_blocks: HashMap<Slot, SignedBeaconBlockHash> = canonical_blocks_zeroth_epoch
.into_iter()
.chain(canonical_blocks_first_epoch.into_iter())
.chain(canonical_blocks_second_epoch.into_iter())
.collect();
// Postcondition: New blocks got finalized
let chain_dump = harness.chain.chain_dump().unwrap();
let finalized_blocks = get_finalized_epoch_boundary_blocks(&chain_dump);
assert_eq!(
finalized_blocks,
vec![
Hash256::zero().into(),
canonical_blocks[&Slot::new(slots_per_epoch as u64)],
canonical_blocks[&Slot::new((slots_per_epoch * 2) as u64)],
]
.into_iter()
.collect()
);
// Postcondition: Ensure all stray_blocks blocks have been pruned
for &block_hash in stray_blocks.values() {
let block = harness.chain.get_block(&block_hash.into()).unwrap();
assert!(
block.is_none(),
"abandoned block {} should have been pruned",
block_hash
);
}
for (&slot, &state_hash) in &stray_states {
let state = harness.chain.get_state(&state_hash.into(), None).unwrap();
assert!(
state.is_none(),
"stray state {} at slot {} should have been deleted",
state_hash,
slot
);
}
assert!(!harness.chain.knows_head(&stray_head));
}
// This is to check if state outside of normal block processing are pruned correctly.
#[test]
fn prunes_skipped_slots_states() {
const VALIDATOR_COUNT: usize = 24;
const VALIDATOR_SUPERMAJORITY: usize = (VALIDATOR_COUNT / 3) * 2;
let db_path = tempdir().unwrap();
let store = get_store(&db_path);
let harness = get_harness(Arc::clone(&store), VALIDATOR_COUNT);
const HONEST_VALIDATOR_COUNT: usize = VALIDATOR_SUPERMAJORITY;
let honest_validators: Vec<usize> = (0..HONEST_VALIDATOR_COUNT).collect();
let faulty_validators: Vec<usize> = (HONEST_VALIDATOR_COUNT..VALIDATOR_COUNT).collect();
let slots_per_epoch: usize = MinimalEthSpec::slots_per_epoch() as usize;
// Arrange skipped slots so as to cross the epoch boundary. That way, we excercise the code
// responsible for storing state outside of normal block processing.
let canonical_slot = harness.get_chain_slot();
let canonical_state = harness.get_head_state();
let (canonical_blocks_zeroth_epoch, _, canonical_slot, _, canonical_state) = harness
.add_canonical_chain_blocks(
canonical_state,
canonical_slot,
slots_per_epoch - 1,
&honest_validators,
);
let (stray_blocks, stray_states, stray_slot, _, _) = harness.add_stray_blocks(
canonical_state.clone(),
canonical_slot,
slots_per_epoch,
&faulty_validators,
);
// Preconditions
for &block_hash in stray_blocks.values() {
let block = harness.chain.get_block(&block_hash.into()).unwrap();
assert!(
block.is_some(),
"stray block {} should be still present",
block_hash
);
}
for (&slot, &state_hash) in &stray_states {
let state = harness.chain.get_state(&state_hash.into(), None).unwrap();
assert!(
state.is_some(),
"stray state {} at slot {} should be still present",
state_hash,
slot
);
}
let chain_dump = harness.chain.chain_dump().unwrap();
assert_eq!(
get_finalized_epoch_boundary_blocks(&chain_dump),
vec![Hash256::zero().into()].into_iter().collect(),
);
// Make sure slots were skipped
let stray_state = harness
.chain
.state_at_slot(stray_slot, StateSkipConfig::WithoutStateRoots)
.unwrap();
let block_root = stray_state.get_block_root(canonical_slot - 1);
assert_eq!(stray_state.get_block_root(canonical_slot), block_root);
assert_eq!(stray_state.get_block_root(canonical_slot + 1), block_root);
let skipped_slots = vec![canonical_slot, canonical_slot + 1];
for &slot in &skipped_slots {
assert_eq!(stray_state.get_block_root(slot), block_root);
let state_hash = stray_state.get_state_root(slot).unwrap();
assert!(
harness
.chain
.get_state(&state_hash, Some(slot))
.unwrap()
.is_some(),
"skipped slots state should be still present"
);
}
// Trigger finalization
let (canonical_blocks_post_finalization, _, _, _, _) = harness.add_canonical_chain_blocks(
canonical_state,
canonical_slot,
slots_per_epoch * 5,
&honest_validators,
);
// Postconditions
let chain_dump = harness.chain.chain_dump().unwrap();
let finalized_blocks = get_finalized_epoch_boundary_blocks(&chain_dump);
let canonical_blocks: HashMap<Slot, SignedBeaconBlockHash> = canonical_blocks_zeroth_epoch
.into_iter()
.chain(canonical_blocks_post_finalization.into_iter())
.collect();
assert_eq!(
finalized_blocks,
vec![
Hash256::zero().into(),
canonical_blocks[&Slot::new(slots_per_epoch as u64)],
]
.into_iter()
.collect()
);
for (&slot, &state_hash) in &stray_states {
let state = harness.chain.get_state(&state_hash.into(), None).unwrap();
assert!(
state.is_none(),
"stray state {} at slot {} should have been deleted",
state_hash,
slot
);
}
for &slot in &skipped_slots {
assert_eq!(stray_state.get_block_root(slot), block_root);
let state_hash = stray_state.get_state_root(slot).unwrap();
assert!(
harness
.chain
.get_state(&state_hash, Some(slot))
.unwrap()
.is_none(),
"skipped slot states should have been pruned"
);
}
}
/// Check that the head state's slot matches `expected_slot`.
fn check_slot(harness: &TestHarness, expected_slot: u64) {
let state = &harness.chain.head().expect("should get head").beacon_state;
@ -548,3 +1371,19 @@ fn check_iterators(harness: &TestHarness) {
Some(Slot::new(0))
);
}
fn get_finalized_epoch_boundary_blocks(
dump: &[BeaconSnapshot<MinimalEthSpec>],
) -> HashSet<SignedBeaconBlockHash> {
dump.iter()
.cloned()
.map(|checkpoint| checkpoint.beacon_state.finalized_checkpoint.root.into())
.collect()
}
fn get_blocks(dump: &[BeaconSnapshot<MinimalEthSpec>]) -> HashSet<SignedBeaconBlockHash> {
dump.iter()
.cloned()
.map(|checkpoint| checkpoint.beacon_block_root.into())
.collect()
}

27
beacon_node/client/src/builder.rs
View File

@ -4,11 +4,9 @@ use crate::Client;
use beacon_chain::{
builder::{BeaconChainBuilder, Witness},
eth1_chain::{CachingEth1Backend, Eth1Chain},
slot_clock::{SlotClock, SystemTimeSlotClock},
store::{
migrate::{BackgroundMigrator, Migrate, NullMigrator},
DiskStore, MemoryStore, SimpleDiskStore, Store, StoreConfig,
},
slot_clock::{SlotClock, SystemTimeSlotClock},
store::{DiskStore, MemoryStore, SimpleDiskStore, Store, StoreConfig},
BeaconChain, BeaconChainTypes, Eth1ChainBackend, EventHandler,
};
use environment::RuntimeContext;
@ -68,7 +66,7 @@ impl<TStore, TStoreMigrator, TSlotClock, TEth1Backend, TEthSpec, TEventHandler>
>
where
TStore: Store<TEthSpec> + 'static,
TStoreMigrator: store::Migrate<TStore, TEthSpec>,
TStoreMigrator: Migrate<TStore, TEthSpec>,
TSlotClock: SlotClock + Clone + 'static,
TEth1Backend: Eth1ChainBackend<TEthSpec, TStore> + 'static,
TEthSpec: EthSpec + 'static,
@ -403,7 +401,7 @@ impl<TStore, TStoreMigrator, TSlotClock, TEth1Backend, TEthSpec, TEventHandler>
>
where
TStore: Store<TEthSpec> + 'static,
TStoreMigrator: store::Migrate<TStore, TEthSpec>,
TStoreMigrator: Migrate<TStore, TEthSpec>,
TSlotClock: SlotClock + Clone + 'static,
TEth1Backend: Eth1ChainBackend<TEthSpec, TStore> + 'static,
TEthSpec: EthSpec + 'static,
@ -450,7 +448,7 @@ impl<TStore, TStoreMigrator, TSlotClock, TEth1Backend, TEthSpec>
>
where
TStore: Store<TEthSpec> + 'static,
TStoreMigrator: store::Migrate<TStore, TEthSpec>,
TStoreMigrator: Migrate<TStore, TEthSpec>,
TSlotClock: SlotClock + 'static,
TEth1Backend: Eth1ChainBackend<TEthSpec, TStore> + 'static,
TEthSpec: EthSpec + 'static,
@ -498,7 +496,7 @@ impl<TStoreMigrator, TSlotClock, TEth1Backend, TEthSpec, TEventHandler>
>
where
TSlotClock: SlotClock + 'static,
TStoreMigrator: store::Migrate<DiskStore<TEthSpec>, TEthSpec> + 'static,
TStoreMigrator: Migrate<DiskStore<TEthSpec>, TEthSpec> + 'static,
TEth1Backend: Eth1ChainBackend<TEthSpec, DiskStore<TEthSpec>> + 'static,
TEthSpec: EthSpec + 'static,
TEventHandler: EventHandler<TEthSpec> + 'static,
@ -540,7 +538,7 @@ impl<TStoreMigrator, TSlotClock, TEth1Backend, TEthSpec, TEventHandler>
>
where
TSlotClock: SlotClock + 'static,
TStoreMigrator: store::Migrate<SimpleDiskStore<TEthSpec>, TEthSpec> + 'static,
TStoreMigrator: Migrate<SimpleDiskStore<TEthSpec>, TEthSpec> + 'static,
TEth1Backend: Eth1ChainBackend<TEthSpec, SimpleDiskStore<TEthSpec>> + 'static,
TEthSpec: EthSpec + 'static,
TEventHandler: EventHandler<TEthSpec> + 'static,
@ -600,10 +598,15 @@ where
TEventHandler: EventHandler<TEthSpec> + 'static,
{
pub fn background_migrator(mut self) -> Result<Self, String> {
let context = self
.runtime_context
.as_ref()
.ok_or_else(|| "disk_store requires a log".to_string())?
.service_context("freezer_db".into());
let store = self.store.clone().ok_or_else(|| {
"background_migrator requires the store to be initialized".to_string()
})?;
self.store_migrator = Some(BackgroundMigrator::new(store));
self.store_migrator = Some(BackgroundMigrator::new(store, context.log.clone()));
Ok(self)
}
}
@ -621,7 +624,7 @@ impl<TStore, TStoreMigrator, TSlotClock, TEthSpec, TEventHandler>
>
where
TStore: Store<TEthSpec> + 'static,
TStoreMigrator: store::Migrate<TStore, TEthSpec>,
TStoreMigrator: Migrate<TStore, TEthSpec>,
TSlotClock: SlotClock + 'static,
TEthSpec: EthSpec + 'static,
TEventHandler: EventHandler<TEthSpec> + 'static,
@ -727,7 +730,7 @@ impl<TStore, TStoreMigrator, TEth1Backend, TEthSpec, TEventHandler>
>
where
TStore: Store<TEthSpec> + 'static,
TStoreMigrator: store::Migrate<TStore, TEthSpec>,
TStoreMigrator: Migrate<TStore, TEthSpec>,
TEth1Backend: Eth1ChainBackend<TEthSpec, TStore> + 'static,
TEthSpec: EthSpec + 'static,
TEventHandler: EventHandler<TEthSpec> + 'static,

3
beacon_node/genesis/src/eth1_genesis_service.rs
View File

@ -383,7 +383,8 @@ impl Eth1GenesisService {
.map_err(|e| format!("Error whilst processing deposit: {:?}", e))
})?;
process_activations(&mut local_state, spec);
process_activations(&mut local_state, spec)
.map_err(|e| format!("Error whilst processing activations: {:?}", e))?;
let is_valid = is_valid_genesis_state(&local_state, spec);
trace!(

2
beacon_node/src/lib.rs
View File

@ -10,6 +10,7 @@ pub use client::{Client, ClientBuilder, ClientConfig, ClientGenesis};
pub use config::{get_data_dir, get_eth2_testnet_config, get_testnet_dir};
pub use eth2_config::Eth2Config;
use beacon_chain::migrate::{BackgroundMigrator, DiskStore};
use beacon_chain::{
builder::Witness, eth1_chain::CachingEth1Backend, events::WebSocketSender,
slot_clock::SystemTimeSlotClock,
@ -20,7 +21,6 @@ use environment::RuntimeContext;
use futures::{Future, IntoFuture};
use slog::{info, warn};
use std::ops::{Deref, DerefMut};
use store::{migrate::BackgroundMigrator, DiskStore};
use types::EthSpec;
/// A type-alias to the tighten the definition of a production-intended `Client`.

2
beacon_node/store/src/hot_cold_store.rs
View File

@ -204,7 +204,7 @@ impl<E: EthSpec> Store<E> for HotColdDB<E> {
}
/// Advance the split point of the store, moving new finalized states to the freezer.
fn freeze_to_state(
fn process_finalization(
store: Arc<Self>,
frozen_head_root: Hash256,
frozen_head: &BeaconState<E>,

192
beacon_node/store/src/iter.rs
View File

@ -1,4 +1,4 @@
use crate::Store;
use crate::{Error, Store};
use std::borrow::Cow;
use std::marker::PhantomData;
use std::sync::Arc;
@ -43,12 +43,95 @@ impl<'a, U: Store<E>, E: EthSpec> AncestorIter<U, E, StateRootsIterator<'a, E, U
}
pub struct StateRootsIterator<'a, T: EthSpec, U> {
inner: RootsIterator<'a, T, U>,
}
impl<'a, T: EthSpec, U> Clone for StateRootsIterator<'a, T, U> {
fn clone(&self) -> Self {
Self {
inner: self.inner.clone(),
}
}
}
impl<'a, T: EthSpec, U: Store<T>> StateRootsIterator<'a, T, U> {
pub fn new(store: Arc<U>, beacon_state: &'a BeaconState<T>) -> Self {
Self {
inner: RootsIterator::new(store, beacon_state),
}
}
pub fn owned(store: Arc<U>, beacon_state: BeaconState<T>) -> Self {
Self {
inner: RootsIterator::owned(store, beacon_state),
}
}
}
impl<'a, T: EthSpec, U: Store<T>> Iterator for StateRootsIterator<'a, T, U> {
type Item = (Hash256, Slot);
fn next(&mut self) -> Option<Self::Item> {
self.inner
.next()
.map(|(_, state_root, slot)| (state_root, slot))
}
}
/// Iterates backwards through block roots. If any specified slot is unable to be retrieved, the
/// iterator returns `None` indefinitely.
///
/// Uses the `block_roots` field of `BeaconState` as the source of block roots and will
/// perform a lookup on the `Store` for a prior `BeaconState` if `block_roots` has been
/// exhausted.
///
/// Returns `None` for roots prior to genesis or when there is an error reading from `Store`.
pub struct BlockRootsIterator<'a, T: EthSpec, U> {
inner: RootsIterator<'a, T, U>,
}
impl<'a, T: EthSpec, U> Clone for BlockRootsIterator<'a, T, U> {
fn clone(&self) -> Self {
Self {
inner: self.inner.clone(),
}
}
}
impl<'a, T: EthSpec, U: Store<T>> BlockRootsIterator<'a, T, U> {
/// Create a new iterator over all block roots in the given `beacon_state` and prior states.
pub fn new(store: Arc<U>, beacon_state: &'a BeaconState<T>) -> Self {
Self {
inner: RootsIterator::new(store, beacon_state),
}
}
/// Create a new iterator over all block roots in the given `beacon_state` and prior states.
pub fn owned(store: Arc<U>, beacon_state: BeaconState<T>) -> Self {
Self {
inner: RootsIterator::owned(store, beacon_state),
}
}
}
impl<'a, T: EthSpec, U: Store<T>> Iterator for BlockRootsIterator<'a, T, U> {
type Item = (Hash256, Slot);
fn next(&mut self) -> Option<Self::Item> {
self.inner
.next()
.map(|(block_root, _, slot)| (block_root, slot))
}
}
/// Iterator over state and block roots that backtracks using the vectors from a `BeaconState`.
pub struct RootsIterator<'a, T: EthSpec, U> {
store: Arc<U>,
beacon_state: Cow<'a, BeaconState<T>>,
slot: Slot,
}
impl<'a, T: EthSpec, U> Clone for StateRootsIterator<'a, T, U> {
impl<'a, T: EthSpec, U> Clone for RootsIterator<'a, T, U> {
fn clone(&self) -> Self {
Self {
store: self.store.clone(),
@ -58,7 +141,7 @@ impl<'a, T: EthSpec, U> Clone for StateRootsIterator<'a, T, U> {
}
}
impl<'a, T: EthSpec, U: Store<T>> StateRootsIterator<'a, T, U> {
impl<'a, T: EthSpec, U: Store<T>> RootsIterator<'a, T, U> {
pub fn new(store: Arc<U>, beacon_state: &'a BeaconState<T>) -> Self {
Self {
store,
@ -74,10 +157,21 @@ impl<'a, T: EthSpec, U: Store<T>> StateRootsIterator<'a, T, U> {
beacon_state: Cow::Owned(beacon_state),
}
}
pub fn from_block(store: Arc<U>, block_hash: Hash256) -> Result<Self, Error> {
let block = store
.get_block(&block_hash)?
.ok_or_else(|| BeaconStateError::MissingBeaconBlock(block_hash.into()))?;
let state = store
.get_state(&block.state_root(), Some(block.slot()))?
.ok_or_else(|| BeaconStateError::MissingBeaconState(block.state_root().into()))?;
Ok(Self::owned(store, state))
}
}
impl<'a, T: EthSpec, U: Store<T>> Iterator for StateRootsIterator<'a, T, U> {
type Item = (Hash256, Slot);
impl<'a, T: EthSpec, U: Store<T>> Iterator for RootsIterator<'a, T, U> {
/// (block_root, state_root, slot)
type Item = (Hash256, Hash256, Slot);
fn next(&mut self) -> Option<Self::Item> {
if self.slot == 0 || self.slot > self.beacon_state.slot {
@ -86,18 +180,22 @@ impl<'a, T: EthSpec, U: Store<T>> Iterator for StateRootsIterator<'a, T, U> {
self.slot -= 1;
match self.beacon_state.get_state_root(self.slot) {
Ok(root) => Some((*root, self.slot)),
Err(BeaconStateError::SlotOutOfBounds) => {
match (
self.beacon_state.get_block_root(self.slot),
self.beacon_state.get_state_root(self.slot),
) {
(Ok(block_root), Ok(state_root)) => Some((*block_root, *state_root, self.slot)),
(Err(BeaconStateError::SlotOutOfBounds), Err(BeaconStateError::SlotOutOfBounds)) => {
// Read a `BeaconState` from the store that has access to prior historical roots.
let beacon_state =
next_historical_root_backtrack_state(&*self.store, &self.beacon_state)?;
self.beacon_state = Cow::Owned(beacon_state);
let root = self.beacon_state.get_state_root(self.slot).ok()?;
let block_root = *self.beacon_state.get_block_root(self.slot).ok()?;
let state_root = *self.beacon_state.get_state_root(self.slot).ok()?;
Some((*root, self.slot))
Some((block_root, state_root, self.slot))
}
_ => None,
}
@ -165,79 +263,7 @@ impl<'a, T: EthSpec, U: Store<T>> Iterator for BlockIterator<'a, T, U> {
fn next(&mut self) -> Option<Self::Item> {
let (root, _slot) = self.roots.next()?;
self.roots.store.get_block(&root).ok()?
}
}
/// Iterates backwards through block roots. If any specified slot is unable to be retrieved, the
/// iterator returns `None` indefinitely.
///
/// Uses the `block_roots` field of `BeaconState` to as the source of block roots and will
/// perform a lookup on the `Store` for a prior `BeaconState` if `block_roots` has been
/// exhausted.
///
/// Returns `None` for roots prior to genesis or when there is an error reading from `Store`.
pub struct BlockRootsIterator<'a, T: EthSpec, U> {
store: Arc<U>,
beacon_state: Cow<'a, BeaconState<T>>,
slot: Slot,
}
impl<'a, T: EthSpec, U> Clone for BlockRootsIterator<'a, T, U> {
fn clone(&self) -> Self {
Self {
store: self.store.clone(),
beacon_state: self.beacon_state.clone(),
slot: self.slot,
}
}
}
impl<'a, T: EthSpec, U: Store<T>> BlockRootsIterator<'a, T, U> {
/// Create a new iterator over all block roots in the given `beacon_state` and prior states.
pub fn new(store: Arc<U>, beacon_state: &'a BeaconState<T>) -> Self {
Self {
store,
slot: beacon_state.slot,
beacon_state: Cow::Borrowed(beacon_state),
}
}
/// Create a new iterator over all block roots in the given `beacon_state` and prior states.
pub fn owned(store: Arc<U>, beacon_state: BeaconState<T>) -> Self {
Self {
store,
slot: beacon_state.slot,
beacon_state: Cow::Owned(beacon_state),
}
}
}
impl<'a, T: EthSpec, U: Store<T>> Iterator for BlockRootsIterator<'a, T, U> {
type Item = (Hash256, Slot);
fn next(&mut self) -> Option<Self::Item> {
if self.slot == 0 || self.slot > self.beacon_state.slot {
return None;
}
self.slot -= 1;
match self.beacon_state.get_block_root(self.slot) {
Ok(root) => Some((*root, self.slot)),
Err(BeaconStateError::SlotOutOfBounds) => {
// Read a `BeaconState` from the store that has access to prior historical roots.
let beacon_state =
next_historical_root_backtrack_state(&*self.store, &self.beacon_state)?;
self.beacon_state = Cow::Owned(beacon_state);
let root = self.beacon_state.get_block_root(self.slot).ok()?;
Some((*root, self.slot))
}
_ => None,
}
self.roots.inner.store.get_block(&root).ok()?
}
}

6
beacon_node/store/src/lib.rs
View File

@ -15,7 +15,7 @@ pub mod chunked_vector;
pub mod config;
mod errors;
mod forwards_iter;
mod hot_cold_store;
pub mod hot_cold_store;
mod impls;
mod leveldb_store;
mod memory_store;
@ -24,7 +24,6 @@ mod partial_beacon_state;
mod state_batch;
pub mod iter;
pub mod migrate;
use std::sync::Arc;
@ -32,7 +31,6 @@ pub use self::config::StoreConfig;
pub use self::hot_cold_store::{HotColdDB as DiskStore, HotStateSummary};
pub use self::leveldb_store::LevelDB as SimpleDiskStore;
pub use self::memory_store::MemoryStore;
pub use self::migrate::Migrate;
pub use self::partial_beacon_state::PartialBeaconState;
pub use errors::Error;
pub use impls::beacon_state::StorageContainer as BeaconStateStorageContainer;
@ -132,7 +130,7 @@ pub trait Store<E: EthSpec>: Sync + Send + Sized + 'static {
}
/// (Optionally) Move all data before the frozen slot to the freezer database.
fn freeze_to_state(
fn process_finalization(
_store: Arc<Self>,
_frozen_head_root: Hash256,
_frozen_head: &BeaconState<E>,

153
beacon_node/store/src/migrate.rs
View File

@ -1,153 +0,0 @@
use crate::{
hot_cold_store::HotColdDBError, DiskStore, Error, MemoryStore, SimpleDiskStore, Store,
};
use parking_lot::Mutex;
use slog::{debug, warn};
use std::mem;
use std::sync::mpsc;
use std::sync::Arc;
use std::thread;
use types::{BeaconState, EthSpec, Hash256, Slot};
/// Trait for migration processes that update the database upon finalization.
pub trait Migrate<S, E: EthSpec>: Send + Sync + 'static {
fn new(db: Arc<S>) -> Self;
fn freeze_to_state(
&self,
_state_root: Hash256,
_state: BeaconState<E>,
_max_finality_distance: u64,
) {
}
}
/// Migrator that does nothing, for stores that don't need migration.
pub struct NullMigrator;
impl<E: EthSpec> Migrate<SimpleDiskStore<E>, E> for NullMigrator {
fn new(_: Arc<SimpleDiskStore<E>>) -> Self {
NullMigrator
}
}
impl<E: EthSpec> Migrate<MemoryStore<E>, E> for NullMigrator {
fn new(_: Arc<MemoryStore<E>>) -> Self {
NullMigrator
}
}
/// Migrator that immediately calls the store's migration function, blocking the current execution.
///
/// Mostly useful for tests.
pub struct BlockingMigrator<S>(Arc<S>);
impl<E: EthSpec, S: Store<E>> Migrate<S, E> for BlockingMigrator<S> {
fn new(db: Arc<S>) -> Self {
BlockingMigrator(db)
}
fn freeze_to_state(
&self,
state_root: Hash256,
state: BeaconState<E>,
_max_finality_distance: u64,
) {
if let Err(e) = S::freeze_to_state(self.0.clone(), state_root, &state) {
// This migrator is only used for testing, so we just log to stderr without a logger.
eprintln!("Migration error: {:?}", e);
}
}
}
type MpscSender<E> = mpsc::Sender<(Hash256, BeaconState<E>)>;
/// Migrator that runs a background thread to migrate state from the hot to the cold database.
pub struct BackgroundMigrator<E: EthSpec> {
db: Arc<DiskStore<E>>,
tx_thread: Mutex<(MpscSender<E>, thread::JoinHandle<()>)>,
}
impl<E: EthSpec> Migrate<DiskStore<E>, E> for BackgroundMigrator<E> {
fn new(db: Arc<DiskStore<E>>) -> Self {
let tx_thread = Mutex::new(Self::spawn_thread(db.clone()));
Self { db, tx_thread }
}
/// Perform the freezing operation on the database,
fn freeze_to_state(
&self,
finalized_state_root: Hash256,
finalized_state: BeaconState<E>,
max_finality_distance: u64,
) {
if !self.needs_migration(finalized_state.slot, max_finality_distance) {
return;
}
let (ref mut tx, ref mut thread) = *self.tx_thread.lock();
if let Err(tx_err) = tx.send((finalized_state_root, finalized_state)) {
let (new_tx, new_thread) = Self::spawn_thread(self.db.clone());
drop(mem::replace(tx, new_tx));
let old_thread = mem::replace(thread, new_thread);
// Join the old thread, which will probably have panicked, or may have
// halted normally just now as a result of us dropping the old `mpsc::Sender`.
if let Err(thread_err) = old_thread.join() {
warn!(
self.db.log,
"Migration thread died, so it was restarted";
"reason" => format!("{:?}", thread_err)
);
}
// Retry at most once, we could recurse but that would risk overflowing the stack.
let _ = tx.send(tx_err.0);
}
}
}
impl<E: EthSpec> BackgroundMigrator<E> {
/// Return true if a migration needs to be performed, given a new `finalized_slot`.
fn needs_migration(&self, finalized_slot: Slot, max_finality_distance: u64) -> bool {
let finality_distance = finalized_slot - self.db.get_split_slot();
finality_distance > max_finality_distance
}
/// Spawn a new child thread to run the migration process.
///
/// Return a channel handle for sending new finalized states to the thread.
fn spawn_thread(
db: Arc<DiskStore<E>>,
) -> (
mpsc::Sender<(Hash256, BeaconState<E>)>,
thread::JoinHandle<()>,
) {
let (tx, rx) = mpsc::channel();
let thread = thread::spawn(move || {
while let Ok((state_root, state)) = rx.recv() {
match DiskStore::freeze_to_state(db.clone(), state_root, &state) {
Ok(()) => {}
Err(Error::HotColdDBError(HotColdDBError::FreezeSlotUnaligned(slot))) => {
debug!(
db.log,
"Database migration postponed, unaligned finalized block";
"slot" => slot.as_u64()
);
}
Err(e) => {
warn!(
db.log,
"Database migration failed";
"error" => format!("{:?}", e)
);
}
}
}
});
(tx, thread)
}
}

15
eth2/operation_pool/src/lib.rs
View File

@ -98,10 +98,14 @@ impl<T: EthSpec> OperationPool<T> {
/// Get a list of attestations for inclusion in a block.
///
/// NOTE: Assumes that all attestations in the operation_pool are valid.
/// The `validity_filter` is a closure that provides extra filtering of the attestations
/// before an approximately optimal bundle is constructed. We use it to provide access
/// to the fork choice data from the `BeaconChain` struct that doesn't logically belong
/// in the operation pool.
pub fn get_attestations(
&self,
state: &BeaconState<T>,
validity_filter: impl FnMut(&&Attestation<T>) -> bool,
spec: &ChainSpec,
) -> Result<Vec<Attestation<T>>, OpPoolError> {
// Attestations for the current fork, which may be from the current or previous epoch.
@ -143,6 +147,7 @@ impl<T: EthSpec> OperationPool<T> {
)
.is_ok()
})
.filter(validity_filter)
.flat_map(|att| AttMaxCover::new(att, state, total_active_balance, spec));
Ok(maximum_cover(
@ -584,7 +589,7 @@ mod release_tests {
state.slot -= 1;
assert_eq!(
op_pool
.get_attestations(state, spec)
.get_attestations(state, |_| true, spec)
.expect("should have attestations")
.len(),
0
@ -594,7 +599,7 @@ mod release_tests {
state.slot += spec.min_attestation_inclusion_delay;
let block_attestations = op_pool
.get_attestations(state, spec)
.get_attestations(state, |_| true, spec)
.expect("Should have block attestations");
assert_eq!(block_attestations.len(), committees.len());
@ -764,7 +769,7 @@ mod release_tests {
state.slot += spec.min_attestation_inclusion_delay;
let best_attestations = op_pool
.get_attestations(state, spec)
.get_attestations(state, |_| true, spec)
.expect("should have best attestations");
assert_eq!(best_attestations.len(), max_attestations);
@ -839,7 +844,7 @@ mod release_tests {
state.slot += spec.min_attestation_inclusion_delay;
let best_attestations = op_pool
.get_attestations(state, spec)
.get_attestations(state, |_| true, spec)
.expect("should have valid best attestations");
assert_eq!(best_attestations.len(), max_attestations);

37
eth2/proto_array_fork_choice/src/proto_array.rs
View File

@ -407,4 +407,41 @@ impl ProtoArray {
&& (node.finalized_epoch == self.finalized_epoch
|| self.finalized_epoch == Epoch::new(0))
}
/// Return a reverse iterator over the nodes which comprise the chain ending at `block_root`.
pub fn iter_nodes<'a>(&'a self, block_root: &Hash256) -> Iter<'a> {
let next_node_index = self.indices.get(block_root).copied();
Iter {
next_node_index,
proto_array: self,
}
}
/// Return a reverse iterator over the block roots of the chain ending at `block_root`.
///
/// Note that unlike many other iterators, this one WILL NOT yield anything at skipped slots.
pub fn iter_block_roots<'a>(
&'a self,
block_root: &Hash256,
) -> impl Iterator<Item = (Hash256, Slot)> + 'a {
self.iter_nodes(block_root)
.map(|node| (node.root, node.slot))
}
}
/// Reverse iterator over one path through a `ProtoArray`.
pub struct Iter<'a> {
next_node_index: Option<usize>,
proto_array: &'a ProtoArray,
}
impl<'a> Iterator for Iter<'a> {
type Item = &'a ProtoNode;
fn next(&mut self) -> Option<Self::Item> {
let next_node_index = self.next_node_index?;
let node = self.proto_array.nodes.get(next_node_index)?;
self.next_node_index = node.parent;
Some(node)
}
}

1
eth2/state_processing/Cargo.toml
View File

@ -27,6 +27,7 @@ eth2_ssz = "0.1.2"
eth2_ssz_types = { path = "../utils/ssz_types" }
merkle_proof = { path = "../utils/merkle_proof" }
log = "0.4.8"
safe_arith = { path = "../utils/safe_arith" }
tree_hash = "0.1.0"
tree_hash_derive = "0.2"
types = { path = "../types" }

3
eth2/state_processing/src/common/deposit_data_tree.rs
View File

@ -1,6 +1,7 @@
use eth2_hashing::hash;
use int_to_bytes::int_to_bytes32;
use merkle_proof::{MerkleTree, MerkleTreeError};
use safe_arith::SafeArith;
use types::Hash256;
/// Emulates the eth1 deposit contract merkle tree.
@ -46,7 +47,7 @@ impl DepositDataTree {
/// Add a deposit to the merkle tree.
pub fn push_leaf(&mut self, leaf: Hash256) -> Result<(), MerkleTreeError> {
self.tree.push_leaf(leaf, self.depth)?;
self.mix_in_length += 1;
self.mix_in_length.increment()?;
Ok(())
}
}

11
eth2/state_processing/src/common/get_base_reward.rs
View File

@ -1,4 +1,5 @@
use integer_sqrt::IntegerSquareRoot;
use safe_arith::SafeArith;
use types::*;
/// Returns the base reward for some validator.
@ -14,10 +15,10 @@ pub fn get_base_reward<T: EthSpec>(
if total_active_balance == 0 {
Ok(0)
} else {
Ok(
state.get_effective_balance(index, spec)? * spec.base_reward_factor
/ total_active_balance.integer_sqrt()
/ spec.base_rewards_per_epoch,
)
Ok(state
.get_effective_balance(index, spec)?
.safe_mul(spec.base_reward_factor)?
.safe_div(total_active_balance.integer_sqrt())?
.safe_div(spec.base_rewards_per_epoch)?)
}
}

12
eth2/state_processing/src/common/slash_validator.rs
View File

@ -1,4 +1,5 @@
use crate::common::initiate_validator_exit;
use safe_arith::SafeArith;
use std::cmp;
use types::{BeaconStateError as Error, *};
@ -27,18 +28,21 @@ pub fn slash_validator<T: EthSpec>(
let validator_effective_balance = state.get_effective_balance(slashed_index, spec)?;
state.set_slashings(
epoch,
state.get_slashings(epoch)? + validator_effective_balance,
state
.get_slashings(epoch)?
.safe_add(validator_effective_balance)?,
)?;
safe_sub_assign!(
state.balances[slashed_index],
validator_effective_balance / spec.min_slashing_penalty_quotient
validator_effective_balance.safe_div(spec.min_slashing_penalty_quotient)?
);
// Apply proposer and whistleblower rewards
let proposer_index = state.get_beacon_proposer_index(state.slot, spec)?;
let whistleblower_index = opt_whistleblower_index.unwrap_or(proposer_index);
let whistleblower_reward = validator_effective_balance / spec.whistleblower_reward_quotient;
let proposer_reward = whistleblower_reward / spec.proposer_reward_quotient;
let whistleblower_reward =
validator_effective_balance.safe_div(spec.whistleblower_reward_quotient)?;
let proposer_reward = whistleblower_reward.safe_div(spec.proposer_reward_quotient)?;
safe_add_assign!(state.balances[proposer_index], proposer_reward);
safe_add_assign!(

16
eth2/state_processing/src/genesis.rs
View File

@ -1,5 +1,6 @@
use super::per_block_processing::{errors::BlockProcessingError, process_deposit};
use crate::common::DepositDataTree;
use safe_arith::SafeArith;
use tree_hash::TreeHash;
use types::DEPOSIT_TREE_DEPTH;
use types::*;
@ -14,8 +15,9 @@ pub fn initialize_beacon_state_from_eth1<T: EthSpec>(
deposits: Vec<Deposit>,
spec: &ChainSpec,
) -> Result<BeaconState<T>, BlockProcessingError> {
let genesis_time =
eth1_timestamp - eth1_timestamp % spec.min_genesis_delay + 2 * spec.min_genesis_delay;
let genesis_time = eth1_timestamp
.safe_sub(eth1_timestamp.safe_rem(spec.min_genesis_delay)?)?
.safe_add(2.safe_mul(spec.min_genesis_delay)?)?;
let eth1_data = Eth1Data {
// Temporary deposit root
deposit_root: Hash256::zero(),
@ -37,7 +39,7 @@ pub fn initialize_beacon_state_from_eth1<T: EthSpec>(
process_deposit(&mut state, &deposit, spec, true)?;
}
process_activations(&mut state, spec);
process_activations(&mut state, spec)?;
// Now that we have our validators, initialize the caches (including the committees)
state.build_all_caches(spec)?;
@ -60,11 +62,14 @@ pub fn is_valid_genesis_state<T: EthSpec>(state: &BeaconState<T>, spec: &ChainSp
/// Activate genesis validators, if their balance is acceptable.
///
/// Spec v0.11.1
pub fn process_activations<T: EthSpec>(state: &mut BeaconState<T>, spec: &ChainSpec) {
pub fn process_activations<T: EthSpec>(
state: &mut BeaconState<T>,
spec: &ChainSpec,
) -> Result<(), Error> {
for (index, validator) in state.validators.iter_mut().enumerate() {
let balance = state.balances[index];
validator.effective_balance = std::cmp::min(
balance - balance % spec.effective_balance_increment,
balance.safe_sub(balance.safe_rem(spec.effective_balance_increment)?)?,
spec.max_effective_balance,
);
if validator.effective_balance == spec.max_effective_balance {
@ -72,4 +77,5 @@ pub fn process_activations<T: EthSpec>(state: &mut BeaconState<T>, spec: &ChainS
validator.activation_epoch = T::genesis_epoch();
}
}
Ok(())
}

2
eth2/state_processing/src/lib.rs
View File

@ -1,3 +1,5 @@
#![deny(clippy::integer_arithmetic)]
#[macro_use]
mod macros;

27
eth2/state_processing/src/per_block_processing.rs
View File

@ -1,6 +1,7 @@
use crate::common::{initiate_validator_exit, slash_validator};
use errors::{BlockOperationError, BlockProcessingError, HeaderInvalid, IntoWithIndex};
use rayon::prelude::*;
use safe_arith::{ArithError, SafeArith};
use signature_sets::{block_proposal_signature_set, get_pubkey_from_state, randao_signature_set};
use std::convert::TryInto;
use tree_hash::TreeHash;
@ -239,7 +240,7 @@ pub fn process_eth1_data<T: EthSpec>(
state: &mut BeaconState<T>,
eth1_data: &Eth1Data,
) -> Result<(), Error> {
if let Some(new_eth1_data) = get_new_eth1_data(state, eth1_data) {
if let Some(new_eth1_data) = get_new_eth1_data(state, eth1_data)? {
state.eth1_data = new_eth1_data;
}
@ -248,14 +249,14 @@ pub fn process_eth1_data<T: EthSpec>(
Ok(())
}
/// Returns `Some(eth1_data)` if adding the given `eth1_data` to `state.eth1_data_votes` would
/// Returns `Ok(Some(eth1_data))` if adding the given `eth1_data` to `state.eth1_data_votes` would
/// result in a change to `state.eth1_data`.
///
/// Spec v0.11.1
pub fn get_new_eth1_data<T: EthSpec>(
state: &BeaconState<T>,
eth1_data: &Eth1Data,
) -> Option<Eth1Data> {
) -> Result<Option<Eth1Data>, ArithError> {
let num_votes = state
.eth1_data_votes
.iter()
@ -263,10 +264,10 @@ pub fn get_new_eth1_data<T: EthSpec>(
.count();
// The +1 is to account for the `eth1_data` supplied to the function.
if 2 * (num_votes + 1) > T::SlotsPerEth1VotingPeriod::to_usize() {
Some(eth1_data.clone())
if num_votes.safe_add(1)?.safe_mul(2)? > T::SlotsPerEth1VotingPeriod::to_usize() {
Ok(Some(eth1_data.clone()))
} else {
None
Ok(None)
}
}
@ -318,7 +319,8 @@ pub fn process_attester_slashings<T: EthSpec>(
) -> Result<(), BlockProcessingError> {
// Verify the `IndexedAttestation`s in parallel (these are the resource-consuming objects, not
// the `AttesterSlashing`s themselves).
let mut indexed_attestations: Vec<&_> = Vec::with_capacity(attester_slashings.len() * 2);
let mut indexed_attestations: Vec<&_> =
Vec::with_capacity(attester_slashings.len().safe_mul(2)?);
for attester_slashing in attester_slashings {
indexed_attestations.push(&attester_slashing.attestation_1);
indexed_attestations.push(&attester_slashing.attestation_2);
@ -432,7 +434,12 @@ pub fn process_deposits<T: EthSpec>(
.par_iter()
.enumerate()
.try_for_each(|(i, deposit)| {
verify_deposit_merkle_proof(state, deposit, state.eth1_deposit_index + i as u64, spec)
verify_deposit_merkle_proof(
state,
deposit,
state.eth1_deposit_index.safe_add(i as u64)?,
spec,
)
.map_err(|e| e.into_with_index(i))
})?;
@ -459,7 +466,7 @@ pub fn process_deposit<T: EthSpec>(
.map_err(|e| e.into_with_index(deposit_index))?;
}
state.eth1_deposit_index += 1;
state.eth1_deposit_index.increment()?;
// Ensure the state's pubkey cache is fully up-to-date, it will be used to check to see if the
// depositing validator already exists in the registry.
@ -495,7 +502,7 @@ pub fn process_deposit<T: EthSpec>(
exit_epoch: spec.far_future_epoch,
withdrawable_epoch: spec.far_future_epoch,
effective_balance: std::cmp::min(
amount - amount % spec.effective_balance_increment,
amount.safe_sub(amount.safe_rem(spec.effective_balance_increment)?)?,
spec.max_effective_balance,
),
slashed: false,

2
eth2/state_processing/src/per_block_processing/block_signature_verifier.rs
View File

@ -1,3 +1,5 @@
#![allow(clippy::integer_arithmetic)]
use super::signature_sets::{Error as SignatureSetError, Result as SignatureSetResult, *};
use crate::common::get_indexed_attestation;
use crate::per_block_processing::errors::{AttestationInvalid, BlockOperationError};

20
eth2/state_processing/src/per_block_processing/errors.rs
View File

@ -1,9 +1,10 @@
use super::signature_sets::Error as SignatureSetError;
use merkle_proof::MerkleTreeError;
use safe_arith::ArithError;
use types::*;
/// The error returned from the `per_block_processing` function. Indicates that a block is either
/// invalid, or we were unable to determine it's validity (we encountered an unexpected error).
/// invalid, or we were unable to determine its validity (we encountered an unexpected error).
///
/// Any of the `...Error` variants indicate that at some point during block (and block operation)
/// verification, there was an error. There is no indication as to _where_ that error happened
@ -48,6 +49,7 @@ pub enum BlockProcessingError {
SignatureSetError(SignatureSetError),
SszTypesError(ssz_types::Error),
MerkleTreeError(MerkleTreeError),
ArithError(ArithError),
}
impl From<BeaconStateError> for BlockProcessingError {
@ -68,6 +70,12 @@ impl From<ssz_types::Error> for BlockProcessingError {
}
}
impl From<ArithError> for BlockProcessingError {
fn from(e: ArithError) -> Self {
BlockProcessingError::ArithError(e)
}
}
impl From<BlockOperationError<HeaderInvalid>> for BlockProcessingError {
fn from(e: BlockOperationError<HeaderInvalid>) -> BlockProcessingError {
match e {
@ -75,6 +83,7 @@ impl From<BlockOperationError<HeaderInvalid>> for BlockProcessingError {
BlockOperationError::BeaconStateError(e) => BlockProcessingError::BeaconStateError(e),
BlockOperationError::SignatureSetError(e) => BlockProcessingError::SignatureSetError(e),
BlockOperationError::SszTypesError(e) => BlockProcessingError::SszTypesError(e),
BlockOperationError::ArithError(e) => BlockProcessingError::ArithError(e),
}
}
}
@ -101,6 +110,7 @@ macro_rules! impl_into_block_processing_error_with_index {
BlockOperationError::BeaconStateError(e) => BlockProcessingError::BeaconStateError(e),
BlockOperationError::SignatureSetError(e) => BlockProcessingError::SignatureSetError(e),
BlockOperationError::SszTypesError(e) => BlockProcessingError::SszTypesError(e),
BlockOperationError::ArithError(e) => BlockProcessingError::ArithError(e),
}
}
}
@ -130,6 +140,7 @@ pub enum BlockOperationError<T> {
BeaconStateError(BeaconStateError),
SignatureSetError(SignatureSetError),
SszTypesError(ssz_types::Error),
ArithError(ArithError),
}
impl<T> BlockOperationError<T> {
@ -155,6 +166,12 @@ impl<T> From<ssz_types::Error> for BlockOperationError<T> {
}
}
impl<T> From<ArithError> for BlockOperationError<T> {
fn from(e: ArithError) -> Self {
BlockOperationError::ArithError(e)
}
}
#[derive(Debug, PartialEq, Clone)]
pub enum HeaderInvalid {
ProposalSignatureInvalid,
@ -267,6 +284,7 @@ impl From<BlockOperationError<IndexedAttestationInvalid>>
BlockOperationError::BeaconStateError(e) => BlockOperationError::BeaconStateError(e),
BlockOperationError::SignatureSetError(e) => BlockOperationError::SignatureSetError(e),
BlockOperationError::SszTypesError(e) => BlockOperationError::SszTypesError(e),
BlockOperationError::ArithError(e) => BlockOperationError::ArithError(e),
}
}
}

3
eth2/state_processing/src/per_block_processing/verify_deposit.rs
View File

@ -3,6 +3,7 @@ use crate::per_block_processing::signature_sets::{
deposit_pubkey_signature_message, deposit_signature_set,
};
use merkle_proof::verify_merkle_proof;
use safe_arith::SafeArith;
use tree_hash::TreeHash;
use types::*;
@ -59,7 +60,7 @@ pub fn verify_deposit_merkle_proof<T: EthSpec>(
verify_merkle_proof(
leaf,
&deposit.proof[..],
spec.deposit_contract_tree_depth as usize + 1,
spec.deposit_contract_tree_depth.safe_add(1)? as usize,
deposit_index as usize,
state.eth1_data.deposit_root,
),

33
eth2/state_processing/src/per_epoch_processing.rs
View File

@ -1,4 +1,5 @@
use errors::EpochProcessingError as Error;
use safe_arith::SafeArith;
use tree_hash::TreeHash;
use types::*;
@ -90,7 +91,11 @@ pub fn process_justification_and_finalization<T: EthSpec>(
state.previous_justified_checkpoint = state.current_justified_checkpoint.clone();
state.justification_bits.shift_up(1)?;
if total_balances.previous_epoch_target_attesters() * 3 >= total_balances.current_epoch() * 2 {
if total_balances
.previous_epoch_target_attesters()
.safe_mul(3)?
>= total_balances.current_epoch().safe_mul(2)?
{
state.current_justified_checkpoint = Checkpoint {
epoch: previous_epoch,
root: *state.get_block_root_at_epoch(previous_epoch)?,
@ -98,7 +103,11 @@ pub fn process_justification_and_finalization<T: EthSpec>(
state.justification_bits.set(1, true)?;
}
// If the current epoch gets justified, fill the last bit.
if total_balances.current_epoch_target_attesters() * 3 >= total_balances.current_epoch() * 2 {
if total_balances
.current_epoch_target_attesters()
.safe_mul(3)?
>= total_balances.current_epoch().safe_mul(2)?
{
state.current_justified_checkpoint = Checkpoint {
epoch: current_epoch,
root: *state.get_block_root_at_epoch(current_epoch)?,
@ -152,17 +161,19 @@ pub fn process_final_updates<T: EthSpec>(
}
// Update effective balances with hysteresis (lag).
let hysteresis_increment = spec.effective_balance_increment / spec.hysteresis_quotient;
let downward_threshold = hysteresis_increment * spec.hysteresis_downward_multiplier;
let upward_threshold = hysteresis_increment * spec.hysteresis_upward_multiplier;
let hysteresis_increment = spec
.effective_balance_increment
.safe_div(spec.hysteresis_quotient)?;
let downward_threshold = hysteresis_increment.safe_mul(spec.hysteresis_downward_multiplier)?;
let upward_threshold = hysteresis_increment.safe_mul(spec.hysteresis_upward_multiplier)?;
for (index, validator) in state.validators.iter_mut().enumerate() {
let balance = state.balances[index];
if balance + downward_threshold < validator.effective_balance
|| validator.effective_balance + upward_threshold < balance
if balance.safe_add(downward_threshold)? < validator.effective_balance
|| validator.effective_balance.safe_add(upward_threshold)? < balance
{
validator.effective_balance = std::cmp::min(
balance - balance % spec.effective_balance_increment,
balance.safe_sub(balance.safe_rem(spec.effective_balance_increment)?)?,
spec.max_effective_balance,
);
}
@ -175,7 +186,11 @@ pub fn process_final_updates<T: EthSpec>(
state.set_randao_mix(next_epoch, *state.get_randao_mix(current_epoch)?)?;
// Set historical root accumulator
if next_epoch.as_u64() % (T::SlotsPerHistoricalRoot::to_u64() / T::slots_per_epoch()) == 0 {
if next_epoch
.as_u64()
.safe_rem(T::SlotsPerHistoricalRoot::to_u64().safe_div(T::slots_per_epoch())?)?
== 0
{
let historical_batch = state.historical_batch();
state
.historical_roots

98
eth2/state_processing/src/per_epoch_processing/apply_rewards.rs
View File

@ -1,6 +1,7 @@
use super::super::common::get_base_reward;
use super::validator_statuses::{TotalBalances, ValidatorStatus, ValidatorStatuses};
use super::Error;
use safe_arith::SafeArith;
use types::*;
@ -13,21 +14,21 @@ pub struct Delta {
impl Delta {
/// Reward the validator with the `reward`.
pub fn reward(&mut self, reward: u64) {
self.rewards += reward;
pub fn reward(&mut self, reward: u64) -> Result<(), Error> {
self.rewards = self.rewards.safe_add(reward)?;
Ok(())
}
/// Penalize the validator with the `penalty`.
pub fn penalize(&mut self, penalty: u64) {
self.penalties += penalty;
pub fn penalize(&mut self, penalty: u64) -> Result<(), Error> {
self.penalties = self.penalties.safe_add(penalty)?;
Ok(())
}
}
impl std::ops::AddAssign for Delta {
/// Use wrapping addition as that is how it's defined in the spec.
fn add_assign(&mut self, other: Delta) {
self.rewards += other.rewards;
self.penalties += other.penalties;
/// Combine two deltas.
fn combine(&mut self, other: Delta) -> Result<(), Error> {
self.reward(other.rewards)?;
self.penalize(other.penalties)
}
}
@ -56,9 +57,10 @@ pub fn process_rewards_and_penalties<T: EthSpec>(
get_proposer_deltas(&mut deltas, state, validator_statuses, spec)?;
// Apply the deltas, over-flowing but not under-flowing (saturating at 0 instead).
// Apply the deltas, erroring on overflow above but not on overflow below (saturating at 0
// instead).
for (i, delta) in deltas.iter().enumerate() {
state.balances[i] += delta.rewards;
state.balances[i] = state.balances[i].safe_add(delta.rewards)?;
state.balances[i] = state.balances[i].saturating_sub(delta.penalties);
}
@ -91,7 +93,8 @@ fn get_proposer_deltas<T: EthSpec>(
return Err(Error::ValidatorStatusesInconsistent);
}
deltas[inclusion.proposer_index].reward(base_reward / spec.proposer_reward_quotient);
deltas[inclusion.proposer_index]
.reward(base_reward.safe_div(spec.proposer_reward_quotient)?)?;
}
}
@ -123,9 +126,9 @@ fn get_attestation_deltas<T: EthSpec>(
base_reward,
finality_delay,
spec,
);
)?;
deltas[index] += delta;
deltas[index].combine(delta)?;
}
Ok(())
@ -140,7 +143,7 @@ fn get_attestation_delta<T: EthSpec>(
base_reward: u64,
finality_delay: u64,
spec: &ChainSpec,
) -> Delta {
) -> Result<Delta, Error> {
let mut delta = Delta::default();
// Is this validator eligible to be rewarded or penalized?
@ -149,7 +152,7 @@ fn get_attestation_delta<T: EthSpec>(
|| (validator.is_slashed && !validator.is_withdrawable_in_current_epoch);
if !is_eligible {
return delta;
return Ok(delta);
}
// Handle integer overflow by dividing these quantities by EFFECTIVE_BALANCE_INCREMENT
@ -157,59 +160,78 @@ fn get_attestation_delta<T: EthSpec>(
// - increment = EFFECTIVE_BALANCE_INCREMENT
// - reward_numerator = get_base_reward(state, index) * (attesting_balance // increment)
// - rewards[index] = reward_numerator // (total_balance // increment)
let total_balance_ebi = total_balances.current_epoch() / spec.effective_balance_increment;
let total_attesting_balance_ebi =
total_balances.previous_epoch_attesters() / spec.effective_balance_increment;
let matching_target_balance_ebi =
total_balances.previous_epoch_target_attesters() / spec.effective_balance_increment;
let matching_head_balance_ebi =
total_balances.previous_epoch_head_attesters() / spec.effective_balance_increment;
let total_balance_ebi = total_balances
.current_epoch()
.safe_div(spec.effective_balance_increment)?;
let total_attesting_balance_ebi = total_balances
.previous_epoch_attesters()
.safe_div(spec.effective_balance_increment)?;
let matching_target_balance_ebi = total_balances
.previous_epoch_target_attesters()
.safe_div(spec.effective_balance_increment)?;
let matching_head_balance_ebi = total_balances
.previous_epoch_head_attesters()
.safe_div(spec.effective_balance_increment)?;
// Expected FFG source.
// Spec:
// - validator index in `get_unslashed_attesting_indices(state, matching_source_attestations)`
if validator.is_previous_epoch_attester && !validator.is_slashed {
delta.reward(base_reward * total_attesting_balance_ebi / total_balance_ebi);
delta.reward(
base_reward
.safe_mul(total_attesting_balance_ebi)?
.safe_div(total_balance_ebi)?,
)?;
// Inclusion speed bonus
let proposer_reward = base_reward / spec.proposer_reward_quotient;
let max_attester_reward = base_reward - proposer_reward;
let proposer_reward = base_reward.safe_div(spec.proposer_reward_quotient)?;
let max_attester_reward = base_reward.safe_sub(proposer_reward)?;
let inclusion = validator
.inclusion_info
.expect("It is a logic error for an attester not to have an inclusion delay.");
delta.reward(max_attester_reward / inclusion.delay);
delta.reward(max_attester_reward.safe_div(inclusion.delay)?)?;
} else {
delta.penalize(base_reward);
delta.penalize(base_reward)?;
}
// Expected FFG target.
// Spec:
// - validator index in `get_unslashed_attesting_indices(state, matching_target_attestations)`
if validator.is_previous_epoch_target_attester && !validator.is_slashed {
delta.reward(base_reward * matching_target_balance_ebi / total_balance_ebi);
delta.reward(
base_reward
.safe_mul(matching_target_balance_ebi)?
.safe_div(total_balance_ebi)?,
)?;
} else {
delta.penalize(base_reward);
delta.penalize(base_reward)?;
}
// Expected head.
// Spec:
// - validator index in `get_unslashed_attesting_indices(state, matching_head_attestations)`
if validator.is_previous_epoch_head_attester && !validator.is_slashed {
delta.reward(base_reward * matching_head_balance_ebi / total_balance_ebi);
delta.reward(
base_reward
.safe_mul(matching_head_balance_ebi)?
.safe_div(total_balance_ebi)?,
)?;
} else {
delta.penalize(base_reward);
delta.penalize(base_reward)?;
}
// Inactivity penalty
if finality_delay > spec.min_epochs_to_inactivity_penalty {
// All eligible validators are penalized
delta.penalize(spec.base_rewards_per_epoch * base_reward);
delta.penalize(spec.base_rewards_per_epoch.safe_mul(base_reward)?)?;
// Additionally, all validators whose FFG target didn't match are penalized extra
if !validator.is_previous_epoch_target_attester {
delta.penalize(
validator.current_epoch_effective_balance * finality_delay
/ spec.inactivity_penalty_quotient,
);
validator
.current_epoch_effective_balance
.safe_mul(finality_delay)?
.safe_div(spec.inactivity_penalty_quotient)?,
)?;
}
}
@ -218,5 +240,5 @@ fn get_attestation_delta<T: EthSpec>(
// This function only computes the delta for a single validator, so it cannot also return a
// delta for a validator.
delta
Ok(delta)
}

7
eth2/state_processing/src/per_epoch_processing/errors.rs
View File

@ -18,6 +18,7 @@ pub enum EpochProcessingError {
BeaconStateError(BeaconStateError),
InclusionError(InclusionError),
SszTypesError(ssz_types::Error),
ArithError(safe_arith::ArithError),
}
impl From<InclusionError> for EpochProcessingError {
@ -38,6 +39,12 @@ impl From<ssz_types::Error> for EpochProcessingError {
}
}
impl From<safe_arith::ArithError> for EpochProcessingError {
fn from(e: safe_arith::ArithError) -> EpochProcessingError {
EpochProcessingError::ArithError(e)
}
}
#[derive(Debug, PartialEq)]
pub enum InclusionError {
/// The validator did not participate in an attestation in this period.

14
eth2/state_processing/src/per_epoch_processing/process_slashings.rs
View File

@ -1,3 +1,4 @@
use safe_arith::SafeArith;
use types::{BeaconStateError as Error, *};
/// Process slashings.
@ -13,12 +14,17 @@ pub fn process_slashings<T: EthSpec>(
for (index, validator) in state.validators.iter().enumerate() {
if validator.slashed
&& epoch + T::EpochsPerSlashingsVector::to_u64() / 2 == validator.withdrawable_epoch
&& epoch + T::EpochsPerSlashingsVector::to_u64().safe_div(2)?
== validator.withdrawable_epoch
{
let increment = spec.effective_balance_increment;
let penalty_numerator = validator.effective_balance / increment
* std::cmp::min(sum_slashings * 3, total_balance);
let penalty = penalty_numerator / total_balance * increment;
let penalty_numerator = validator
.effective_balance
.safe_div(increment)?
.safe_mul(std::cmp::min(sum_slashings.safe_mul(3)?, total_balance))?;
let penalty = penalty_numerator
.safe_div(total_balance)?
.safe_mul(increment)?;
safe_sub_assign!(state.balances[index], penalty);
}

29
eth2/state_processing/src/per_epoch_processing/validator_statuses.rs
View File

@ -1,4 +1,5 @@
use crate::common::get_attesting_indices;
use safe_arith::SafeArith;
use types::*;
/// Sets the boolean `var` on `self` to be true if it is true on `other`. Otherwise leaves `self`
@ -198,12 +199,16 @@ impl ValidatorStatuses {
if validator.is_active_at(state.current_epoch()) {
status.is_active_in_current_epoch = true;
total_balances.current_epoch += effective_balance;
total_balances
.current_epoch
.safe_add_assign(effective_balance)?;
}
if validator.is_active_at(state.previous_epoch()) {
status.is_active_in_previous_epoch = true;
total_balances.previous_epoch += effective_balance;
total_balances
.previous_epoch
.safe_add_assign(effective_balance)?;
}
statuses.push(status);
@ -275,19 +280,29 @@ impl ValidatorStatuses {
let validator_balance = state.get_effective_balance(index, spec)?;
if v.is_current_epoch_attester {
self.total_balances.current_epoch_attesters += validator_balance;
self.total_balances
.current_epoch_attesters
.safe_add_assign(validator_balance)?;
}
if v.is_current_epoch_target_attester {
self.total_balances.current_epoch_target_attesters += validator_balance;
self.total_balances
.current_epoch_target_attesters
.safe_add_assign(validator_balance)?;
}
if v.is_previous_epoch_attester {
self.total_balances.previous_epoch_attesters += validator_balance;
self.total_balances
.previous_epoch_attesters
.safe_add_assign(validator_balance)?;
}
if v.is_previous_epoch_target_attester {
self.total_balances.previous_epoch_target_attesters += validator_balance;
self.total_balances
.previous_epoch_target_attesters
.safe_add_assign(validator_balance)?;
}
if v.is_previous_epoch_head_attester {
self.total_balances.previous_epoch_head_attesters += validator_balance;
self.total_balances
.previous_epoch_head_attesters
.safe_add_assign(validator_balance)?;
}
}
}

1
eth2/types/Cargo.toml
View File

@ -23,6 +23,7 @@ log = "0.4.8"
merkle_proof = { path = "../utils/merkle_proof" }
rayon = "1.2.0"
rand = "0.7.2"
safe_arith = { path = "../utils/safe_arith" }
serde = "1.0.102"
serde_derive = "1.0.102"
slog = "2.5.2"

98
eth2/types/src/beacon_state.rs
View File

@ -7,11 +7,13 @@ use compare_fields_derive::CompareFields;
use eth2_hashing::hash;
use int_to_bytes::{int_to_bytes4, int_to_bytes8};
use pubkey_cache::PubkeyCache;
use safe_arith::{ArithError, SafeArith};
use serde_derive::{Deserialize, Serialize};
use ssz::ssz_encode;
use ssz_derive::{Decode, Encode};
use ssz_types::{typenum::Unsigned, BitVector, FixedVector};
use std::convert::TryInto;
use std::fmt;
use swap_or_not_shuffle::compute_shuffled_index;
use test_random_derive::TestRandom;
use tree_hash::TreeHash;
@ -76,6 +78,12 @@ pub enum Error {
deposit_count: u64,
deposit_index: u64,
},
/// An arithmetic operation occurred which would have overflowed or divided by 0.
///
/// This represents a serious bug in either the spec or Lighthouse!
ArithError(ArithError),
MissingBeaconBlock(SignedBeaconBlockHash),
MissingBeaconState(BeaconStateHash),
}
/// Control whether an epoch-indexed field can be indexed at the next epoch or not.
@ -94,6 +102,33 @@ impl AllowNextEpoch {
}
}
#[derive(PartialEq, Eq, Hash, Clone, Copy)]
pub struct BeaconStateHash(Hash256);
impl fmt::Debug for BeaconStateHash {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "BeaconStateHash({:?})", self.0)
}
}
impl fmt::Display for BeaconStateHash {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", self.0)
}
}
impl From<Hash256> for BeaconStateHash {
fn from(hash: Hash256) -> BeaconStateHash {
BeaconStateHash(hash)
}
}
impl From<BeaconStateHash> for Hash256 {
fn from(beacon_state_hash: BeaconStateHash) -> Hash256 {
beacon_state_hash.0
}
}
/// The state of the `BeaconChain` at some slot.
///
/// Spec v0.11.1
@ -413,7 +448,7 @@ impl<T: EthSpec> BeaconState<T> {
let mut i = 0;
loop {
let candidate_index = indices[compute_shuffled_index(
i % indices.len(),
i.safe_rem(indices.len())?,
indices.len(),
seed,
spec.shuffle_round_count,
@ -421,17 +456,19 @@ impl<T: EthSpec> BeaconState<T> {
.ok_or(Error::UnableToShuffle)?];
let random_byte = {
let mut preimage = seed.to_vec();
preimage.append(&mut int_to_bytes8((i / 32) as u64));
preimage.append(&mut int_to_bytes8(i.safe_div(32)? as u64));
let hash = hash(&preimage);
hash[i % 32]
hash[i.safe_rem(32)?]
};
let effective_balance = self.validators[candidate_index].effective_balance;
if effective_balance * MAX_RANDOM_BYTE
>= spec.max_effective_balance * u64::from(random_byte)
if effective_balance.safe_mul(MAX_RANDOM_BYTE)?
>= spec
.max_effective_balance
.safe_mul(u64::from(random_byte))?
{
return Ok(candidate_index);
}
i += 1;
i.increment()?;
}
}
@ -502,8 +539,8 @@ impl<T: EthSpec> BeaconState<T> {
///
/// Spec v0.11.1
fn get_latest_block_roots_index(&self, slot: Slot) -> Result<usize, Error> {
if (slot < self.slot) && (self.slot <= slot + self.block_roots.len() as u64) {
Ok(slot.as_usize() % self.block_roots.len())
if slot < self.slot && self.slot <= slot + self.block_roots.len() as u64 {
Ok(slot.as_usize().safe_rem(self.block_roots.len())?)
} else {
Err(BeaconStateError::SlotOutOfBounds)
}
@ -555,7 +592,7 @@ impl<T: EthSpec> BeaconState<T> {
let len = T::EpochsPerHistoricalVector::to_u64();
if current_epoch < epoch + len && epoch <= allow_next_epoch.upper_bound_of(current_epoch) {
Ok(epoch.as_usize() % len as usize)
Ok(epoch.as_usize().safe_rem(len as usize)?)
} else {
Err(Error::EpochOutOfBounds)
}
@ -569,7 +606,9 @@ impl<T: EthSpec> BeaconState<T> {
///
/// Spec v0.11.1
pub fn update_randao_mix(&mut self, epoch: Epoch, signature: &Signature) -> Result<(), Error> {
let i = epoch.as_usize() % T::EpochsPerHistoricalVector::to_usize();
let i = epoch
.as_usize()
.safe_rem(T::EpochsPerHistoricalVector::to_usize())?;
let signature_hash = Hash256::from_slice(&hash(&ssz_encode(signature)));
@ -599,8 +638,8 @@ impl<T: EthSpec> BeaconState<T> {
///
/// Spec v0.11.1
fn get_latest_state_roots_index(&self, slot: Slot) -> Result<usize, Error> {
if (slot < self.slot) && (self.slot <= slot + Slot::from(self.state_roots.len())) {
Ok(slot.as_usize() % self.state_roots.len())
if slot < self.slot && self.slot <= slot + self.state_roots.len() as u64 {
Ok(slot.as_usize().safe_rem(self.state_roots.len())?)
} else {
Err(BeaconStateError::SlotOutOfBounds)
}
@ -631,6 +670,14 @@ impl<T: EthSpec> BeaconState<T> {
Ok(&self.block_roots[i])
}
pub fn get_block_state_roots(
&self,
slot: Slot,
) -> Result<(SignedBeaconBlockHash, BeaconStateHash), Error> {
let i = self.get_latest_block_roots_index(slot)?;
Ok((self.block_roots[i].into(), self.state_roots[i].into()))
}
/// Sets the latest state root for slot.
///
/// Spec v0.11.1
@ -654,7 +701,9 @@ impl<T: EthSpec> BeaconState<T> {
if current_epoch < epoch + T::EpochsPerSlashingsVector::to_u64()
&& epoch <= allow_next_epoch.upper_bound_of(current_epoch)
{
Ok(epoch.as_usize() % T::EpochsPerSlashingsVector::to_usize())
Ok(epoch
.as_usize()
.safe_rem(T::EpochsPerSlashingsVector::to_usize())?)
} else {
Err(Error::EpochOutOfBounds)
}
@ -713,20 +762,20 @@ impl<T: EthSpec> BeaconState<T> {
// == 0`.
let mix = {
let i = epoch + T::EpochsPerHistoricalVector::to_u64() - spec.min_seed_lookahead - 1;
self.randao_mixes[i.as_usize() % self.randao_mixes.len()]
self.randao_mixes[i.as_usize().safe_rem(self.randao_mixes.len())?]
};
let domain_bytes = int_to_bytes4(spec.get_domain_constant(domain_type));
let epoch_bytes = int_to_bytes8(epoch.as_u64());
const NUM_DOMAIN_BYTES: usize = 4;
const NUM_EPOCH_BYTES: usize = 8;
const MIX_OFFSET: usize = NUM_DOMAIN_BYTES + NUM_EPOCH_BYTES;
const NUM_MIX_BYTES: usize = 32;
let mut preimage = [0; NUM_DOMAIN_BYTES + NUM_EPOCH_BYTES + NUM_MIX_BYTES];
preimage[0..NUM_DOMAIN_BYTES].copy_from_slice(&domain_bytes);
preimage[NUM_DOMAIN_BYTES..NUM_DOMAIN_BYTES + NUM_EPOCH_BYTES]
.copy_from_slice(&epoch_bytes);
preimage[NUM_DOMAIN_BYTES + NUM_EPOCH_BYTES..].copy_from_slice(mix.as_bytes());
preimage[NUM_DOMAIN_BYTES..MIX_OFFSET].copy_from_slice(&epoch_bytes);
preimage[MIX_OFFSET..].copy_from_slice(mix.as_bytes());
Ok(Hash256::from_slice(&hash(&preimage)))
}
@ -760,9 +809,10 @@ impl<T: EthSpec> BeaconState<T> {
pub fn get_churn_limit(&self, spec: &ChainSpec) -> Result<u64, Error> {
Ok(std::cmp::max(
spec.min_per_epoch_churn_limit,
self.committee_cache(RelativeEpoch::Current)?
.active_validator_count() as u64
/ spec.churn_limit_quotient,
(self
.committee_cache(RelativeEpoch::Current)?
.active_validator_count() as u64)
.safe_div(spec.churn_limit_quotient)?,
))
}
@ -792,7 +842,7 @@ impl<T: EthSpec> BeaconState<T> {
) -> Result<u64, Error> {
validator_indices.iter().try_fold(0_u64, |acc, i| {
self.get_effective_balance(*i, spec)
.and_then(|bal| Ok(bal + acc))
.and_then(|bal| Ok(acc.safe_add(bal)?))
})
}
@ -1098,3 +1148,9 @@ impl From<tree_hash::Error> for Error {
Error::TreeHashError(e)
}
}
impl From<ArithError> for Error {
fn from(e: ArithError) -> Error {
Error::ArithError(e)
}
}

6
eth2/types/src/beacon_state/committee_cache.rs
View File

@ -1,3 +1,5 @@
#![allow(clippy::integer_arithmetic)]
use super::BeaconState;
use crate::*;
use core::num::NonZeroUsize;
@ -43,7 +45,7 @@ impl CommitteeCache {
}
let committees_per_slot =
T::get_committee_count_per_slot(active_validator_indices.len(), spec) as u64;
T::get_committee_count_per_slot(active_validator_indices.len(), spec)? as u64;
let seed = state.get_seed(epoch, Domain::BeaconAttester, spec)?;
@ -56,7 +58,7 @@ impl CommitteeCache {
.ok_or_else(|| Error::UnableToShuffle)?;
// The use of `NonZeroUsize` reduces the maximum number of possible validators by one.
if state.validators.len() > usize::max_value() - 1 {
if state.validators.len() == usize::max_value() {
return Err(Error::TooManyValidators);
}

6
eth2/types/src/beacon_state/exit_cache.rs
View File

@ -1,4 +1,5 @@
use super::{BeaconStateError, ChainSpec, Epoch, Validator};
use safe_arith::SafeArith;
use serde_derive::{Deserialize, Serialize};
use std::collections::HashMap;
@ -50,7 +51,10 @@ impl ExitCache {
/// Must only be called once per exiting validator.
pub fn record_validator_exit(&mut self, exit_epoch: Epoch) -> Result<(), BeaconStateError> {
self.check_initialized()?;
*self.exits_per_epoch.entry(exit_epoch).or_insert(0) += 1;
self.exits_per_epoch
.entry(exit_epoch)
.or_insert(0)
.increment()?;
Ok(())
}

1
eth2/types/src/beacon_state/pubkey_cache.rs
View File

@ -23,6 +23,7 @@ impl PubkeyCache {
///
/// The added index must equal the number of validators already added to the map. This ensures
/// that an index is never skipped.
#[allow(clippy::integer_arithmetic)]
pub fn insert(&mut self, pubkey: PublicKeyBytes, index: ValidatorIndex) -> bool {
if index == self.len {
self.map.insert(pubkey, index);

4
eth2/types/src/beacon_state/tree_hash_cache.rs
View File

@ -1,3 +1,5 @@
#![allow(clippy::integer_arithmetic)]
use super::Error;
use crate::{BeaconState, EthSpec, Hash256, Unsigned, Validator};
use cached_tree_hash::{int_log, CacheArena, CachedTreeHash, TreeHashCache};
@ -195,7 +197,7 @@ impl ValidatorsListTreeHashCache {
/// This function makes assumptions that the `validators` list will only change in accordance
/// with valid per-block/per-slot state transitions.
fn recalculate_tree_hash_root(&mut self, validators: &[Validator]) -> Result<Hash256, Error> {
let mut list_arena = std::mem::replace(&mut self.list_arena, CacheArena::default());
let mut list_arena = std::mem::take(&mut self.list_arena);
let leaves = self
.values

15
eth2/types/src/chain_spec.rs
View File

@ -270,10 +270,10 @@ impl ChainSpec {
/*
* Gwei values
*/
min_deposit_amount: u64::pow(2, 0) * u64::pow(10, 9),
max_effective_balance: u64::pow(2, 5) * u64::pow(10, 9),
ejection_balance: u64::pow(2, 4) * u64::pow(10, 9),
effective_balance_increment: u64::pow(2, 0) * u64::pow(10, 9),
min_deposit_amount: u64::pow(2, 0).saturating_mul(u64::pow(10, 9)),
max_effective_balance: u64::pow(2, 5).saturating_mul(u64::pow(10, 9)),
ejection_balance: u64::pow(2, 4).saturating_mul(u64::pow(10, 9)),
effective_balance_increment: u64::pow(2, 0).saturating_mul(u64::pow(10, 9)),
/*
* Initial Values
@ -560,6 +560,7 @@ impl Default for YamlConfig {
/// Spec v0.11.1
impl YamlConfig {
#[allow(clippy::integer_arithmetic)]
pub fn from_spec<T: EthSpec>(spec: &ChainSpec) -> Self {
Self {
// ChainSpec
@ -595,7 +596,7 @@ impl YamlConfig {
proposer_reward_quotient: spec.proposer_reward_quotient,
inactivity_penalty_quotient: spec.inactivity_penalty_quotient,
min_slashing_penalty_quotient: spec.min_slashing_penalty_quotient,
genesis_fork_version: spec.genesis_fork_version.clone(),
genesis_fork_version: spec.genesis_fork_version,
safe_slots_to_update_justified: spec.safe_slots_to_update_justified,
domain_beacon_proposer: spec.domain_beacon_proposer,
domain_beacon_attester: spec.domain_beacon_attester,
@ -680,7 +681,7 @@ impl YamlConfig {
effective_balance_increment: self.effective_balance_increment,
genesis_slot: Slot::from(self.genesis_slot),
bls_withdrawal_prefix_byte: self.bls_withdrawal_prefix,
milliseconds_per_slot: self.seconds_per_slot * 1000,
milliseconds_per_slot: self.seconds_per_slot.saturating_mul(1000),
min_attestation_inclusion_delay: self.min_attestation_inclusion_delay,
min_seed_lookahead: Epoch::from(self.min_seed_lookahead),
max_seed_lookahead: Epoch::from(self.max_seed_lookahead),
@ -700,7 +701,7 @@ impl YamlConfig {
domain_deposit: self.domain_deposit,
domain_voluntary_exit: self.domain_voluntary_exit,
boot_nodes: chain_spec.boot_nodes.clone(),
genesis_fork_version: self.genesis_fork_version.clone(),
genesis_fork_version: self.genesis_fork_version,
eth1_follow_distance: self.eth1_follow_distance,
..*chain_spec
})

14
eth2/types/src/eth_spec.rs
View File

@ -1,4 +1,5 @@
use crate::*;
use safe_arith::SafeArith;
use serde_derive::{Deserialize, Serialize};
use ssz_types::typenum::{
Unsigned, U0, U1, U1024, U1099511627776, U128, U16, U16777216, U2, U2048, U32, U4, U4096, U64,
@ -64,16 +65,21 @@ pub trait EthSpec: 'static + Default + Sync + Send + Clone + Debug + PartialEq {
/// the `active_validator_count` during the slot's epoch.
///
/// Spec v0.11.1
fn get_committee_count_per_slot(active_validator_count: usize, spec: &ChainSpec) -> usize {
fn get_committee_count_per_slot(
active_validator_count: usize,
spec: &ChainSpec,
) -> Result<usize, Error> {
let slots_per_epoch = Self::SlotsPerEpoch::to_usize();
std::cmp::max(
Ok(std::cmp::max(
1,
std::cmp::min(
spec.max_committees_per_slot,
active_validator_count / slots_per_epoch / spec.target_committee_size,
active_validator_count
.safe_div(slots_per_epoch)?
.safe_div(spec.target_committee_size)?,
),
)
))
}
/// Returns the minimum number of validators required for this spec.

6
eth2/types/src/lib.rs
View File

@ -2,6 +2,8 @@
// Required for big type-level numbers
#![recursion_limit = "128"]
// Clippy lint set up
#![deny(clippy::integer_arithmetic)]
#[macro_use]
pub mod test_utils;
@ -76,11 +78,11 @@ pub use crate::proposer_slashing::ProposerSlashing;
pub use crate::relative_epoch::{Error as RelativeEpochError, RelativeEpoch};
pub use crate::selection_proof::SelectionProof;
pub use crate::signed_aggregate_and_proof::SignedAggregateAndProof;
pub use crate::signed_beacon_block::SignedBeaconBlock;
pub use crate::signed_beacon_block::{SignedBeaconBlock, SignedBeaconBlockHash};
pub use crate::signed_beacon_block_header::SignedBeaconBlockHeader;
pub use crate::signed_voluntary_exit::SignedVoluntaryExit;
pub use crate::signing_root::{SignedRoot, SigningRoot};
pub use crate::slot_epoch::{Epoch, Slot, FAR_FUTURE_EPOCH};
pub use crate::slot_epoch::{Epoch, Slot};
pub use crate::subnet_id::SubnetId;
pub use crate::validator::Validator;
pub use crate::voluntary_exit::VoluntaryExit;

29
eth2/types/src/signed_beacon_block.rs
View File

@ -1,11 +1,40 @@
use crate::{test_utils::TestRandom, BeaconBlock, EthSpec, Hash256, Slot};
use bls::Signature;
use std::fmt;
use serde_derive::{Deserialize, Serialize};
use ssz_derive::{Decode, Encode};
use test_random_derive::TestRandom;
use tree_hash::TreeHash;
#[derive(PartialEq, Eq, Hash, Clone, Copy)]
pub struct SignedBeaconBlockHash(Hash256);
impl fmt::Debug for SignedBeaconBlockHash {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "SignedBeaconBlockHash({:?})", self.0)
}
}
impl fmt::Display for SignedBeaconBlockHash {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", self.0)
}
}
impl From<Hash256> for SignedBeaconBlockHash {
fn from(hash: Hash256) -> SignedBeaconBlockHash {
SignedBeaconBlockHash(hash)
}
}
impl From<SignedBeaconBlockHash> for Hash256 {
fn from(signed_beacon_block_hash: SignedBeaconBlockHash) -> Hash256 {
signed_beacon_block_hash.0
}
}
/// A `BeaconBlock` and a signature from its proposer.
///
/// Spec v0.11.1

15
eth2/types/src/slot_epoch.rs
View File

@ -14,7 +14,6 @@ use crate::test_utils::TestRandom;
use crate::SignedRoot;
use rand::RngCore;
use serde_derive::{Deserialize, Serialize};
use slog;
use ssz::{ssz_encode, Decode, DecodeError, Encode};
use std::cmp::{Ord, Ordering};
use std::fmt;
@ -22,13 +21,11 @@ use std::hash::{Hash, Hasher};
use std::iter::Iterator;
use std::ops::{Add, AddAssign, Div, DivAssign, Mul, MulAssign, Rem, Sub, SubAssign};
pub const FAR_FUTURE_EPOCH: Epoch = Epoch(u64::max_value());
#[derive(Eq, Debug, Clone, Copy, Default, Serialize, Deserialize)]
#[derive(Eq, Clone, Copy, Default, Serialize, Deserialize)]
#[serde(transparent)]
pub struct Slot(u64);
#[derive(Eq, Debug, Clone, Copy, Default, Serialize, Deserialize)]
#[derive(Eq, Clone, Copy, Default, Serialize, Deserialize)]
pub struct Epoch(u64);
impl_common!(Slot);
@ -40,7 +37,7 @@ impl Slot {
}
pub fn epoch(self, slots_per_epoch: u64) -> Epoch {
Epoch::from(self.0 / slots_per_epoch)
Epoch::from(self.0) / Epoch::from(slots_per_epoch)
}
pub fn max_value() -> Slot {
@ -79,8 +76,8 @@ impl Epoch {
let start = self.start_slot(slots_per_epoch);
let end = self.end_slot(slots_per_epoch);
if (slot >= start) && (slot <= end) {
Some(slot.as_usize() - start.as_usize())
if slot >= start && slot <= end {
slot.as_usize().checked_sub(start.as_usize())
} else {
None
}
@ -113,7 +110,7 @@ impl<'a> Iterator for SlotIter<'a> {
} else {
let start_slot = self.epoch.start_slot(self.slots_per_epoch);
let previous = self.current_iteration;
self.current_iteration += 1;
self.current_iteration = self.current_iteration.checked_add(1)?;
Some(start_slot + previous)
}
}

36
eth2/types/src/slot_epoch_macros.rs
View File

@ -107,20 +107,21 @@ macro_rules! impl_math_between {
fn div(self, rhs: $other) -> $main {
let rhs: u64 = rhs.into();
if rhs == 0 {
panic!("Cannot divide by zero-valued Slot/Epoch")
}
$main::from(self.0 / rhs)
$main::from(
self.0
.checked_div(rhs)
.expect("Cannot divide by zero-valued Slot/Epoch"),
)
}
}
impl DivAssign<$other> for $main {
fn div_assign(&mut self, rhs: $other) {
let rhs: u64 = rhs.into();
if rhs == 0 {
panic!("Cannot divide by zero-valued Slot/Epoch")
}
self.0 = self.0 / rhs
self.0 = self
.0
.checked_div(rhs)
.expect("Cannot divide by zero-valued Slot/Epoch");
}
}
@ -129,7 +130,11 @@ macro_rules! impl_math_between {
fn rem(self, modulus: $other) -> $main {
let modulus: u64 = modulus.into();
$main::from(self.0 % modulus)
$main::from(
self.0
.checked_rem(modulus)
.expect("Cannot divide by zero-valued Slot/Epoch"),
)
}
}
};
@ -190,6 +195,16 @@ macro_rules! impl_display {
};
}
macro_rules! impl_debug {
($type: ident) => {
impl fmt::Debug for $type {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}({:?})", stringify!($type), self.0)
}
}
};
}
macro_rules! impl_ssz {
($type: ident) => {
impl Encode for $type {
@ -234,7 +249,7 @@ macro_rules! impl_ssz {
}
fn tree_hash_packing_factor() -> usize {
32 / 8
32usize.wrapping_div(8)
}
fn tree_hash_root(&self) -> tree_hash::Hash256 {
@ -270,6 +285,7 @@ macro_rules! impl_common {
impl_math_between!($type, u64);
impl_math!($type);
impl_display!($type);
impl_debug!($type);
impl_ssz!($type);
impl_hash!($type);
};

1
eth2/types/src/test_utils/builders/testing_beacon_state_builder.rs
View File

@ -2,7 +2,6 @@ use super::super::{generate_deterministic_keypairs, KeypairsFile};
use crate::test_utils::{AttestationTestTask, TestingPendingAttestationBuilder};
use crate::*;
use bls::get_withdrawal_credentials;
use dirs;
use log::debug;
use rayon::prelude::*;
use std::path::{Path, PathBuf};

2
eth2/types/src/test_utils/builders/testing_deposit_builder.rs
View File

@ -36,7 +36,7 @@ impl TestingDepositBuilder {
let mut secret_key = keypair.sk.clone();
match test_task {
DepositTestTask::BadPubKey => pubkeybytes = PublicKeyBytes::from(new_key.pk.clone()),
DepositTestTask::BadPubKey => pubkeybytes = PublicKeyBytes::from(new_key.pk),
DepositTestTask::InvalidPubKey => {
// Creating invalid public key bytes
let mut public_key_bytes: Vec<u8> = vec![0; 48];

2
eth2/types/src/test_utils/builders/testing_proposer_slashing_builder.rs
View File

@ -50,7 +50,7 @@ impl TestingProposerSlashingBuilder {
message: BeaconBlockHeader {
parent_root: hash_2,
slot: slot_2,
..signed_header_1.message.clone()
..signed_header_1.message
},
signature: Signature::empty_signature(),
};

2
eth2/types/src/test_utils/mod.rs
View File

@ -1,3 +1,5 @@
#![allow(clippy::integer_arithmetic)]
#[macro_use]
mod macros;
mod builders;

4
eth2/types/src/tree_hash_impls.rs
View File

@ -32,13 +32,11 @@ impl CachedTreeHash<TreeHashCache> for Validator {
// Fields pubkey and withdrawal_credentials are constant
if (i == 0 || i == 1) && cache.initialized {
None
} else {
if process_field_by_index(self, i, leaf, !cache.initialized) {
} else if process_field_by_index(self, i, leaf, !cache.initialized) {
Some(i)
} else {
None
}
}
})
.collect();

1
eth2/types/src/utils/serde_utils.rs
View File

@ -1,4 +1,3 @@
use hex;
use serde::de::Error;
use serde::{Deserialize, Deserializer, Serializer};

4
eth2/utils/bls/src/aggregate_public_key.rs
View File

@ -19,9 +19,7 @@ impl AggregatePublicKey {
pub fn from_bytes(bytes: &[u8]) -> Result<Self, DecodeError> {
let pubkey = RawAggregatePublicKey::from_bytes(&bytes).map_err(|_| {
DecodeError::BytesInvalid(
format!("Invalid AggregatePublicKey bytes: {:?}", bytes).to_string(),
)
DecodeError::BytesInvalid(format!("Invalid AggregatePublicKey bytes: {:?}", bytes))
})?;
Ok(AggregatePublicKey(pubkey))

4
eth2/utils/cached_tree_hash/src/cache.rs
View File

@ -164,8 +164,8 @@ impl TreeHashCache {
fn lift_dirty(dirty_indices: &[usize]) -> SmallVec8<usize> {
let mut new_dirty = SmallVec8::with_capacity(dirty_indices.len());
for i in 0..dirty_indices.len() {
new_dirty.push(dirty_indices[i] / 2)
for index in dirty_indices {
new_dirty.push(index / 2)
}
new_dirty.dedup();

1
eth2/utils/cached_tree_hash/src/cache_arena.rs
View File

@ -89,6 +89,7 @@ impl<T: Encode + Decode> CacheArena<T> {
/// To reiterate, the given `range` should be relative to the given `alloc_id`, not
/// `self.backing`. E.g., if the allocation has an offset of `20` and the range is `0..1`, then
/// the splice will translate to `self.backing[20..21]`.
#[allow(clippy::comparison_chain)]
fn splice_forgetful<I: IntoIterator<Item = T>>(
&mut self,
alloc_id: usize,

1
eth2/utils/merkle_proof/Cargo.toml
View File

@ -8,6 +8,7 @@ edition = "2018"
ethereum-types = "0.8.0"
eth2_hashing = "0.1.0"
lazy_static = "1.4.0"
safe_arith = { path = "../safe_arith" }
[dev-dependencies]
quickcheck = "0.9.0"

9
eth2/utils/merkle_proof/src/lib.rs
View File

@ -1,6 +1,7 @@
use eth2_hashing::{hash, hash32_concat, ZERO_HASHES};
use ethereum_types::H256;
use lazy_static::lazy_static;
use safe_arith::ArithError;
const MAX_TREE_DEPTH: usize = 32;
const EMPTY_SLICE: &[H256] = &[];
@ -38,6 +39,8 @@ pub enum MerkleTreeError {
Invalid,
// Incorrect Depth provided
DepthTooSmall,
// Overflow occurred
ArithError,
}
impl MerkleTree {
@ -232,6 +235,12 @@ fn merkle_root_from_branch(leaf: H256, branch: &[H256], depth: usize, index: usi
H256::from_slice(&merkle_root)
}
impl From<ArithError> for MerkleTreeError {
fn from(_: ArithError) -> Self {
MerkleTreeError::ArithError
}
}
#[cfg(test)]
mod tests {
use super::*;

9
eth2/utils/safe_arith/Cargo.toml Normal file
View File

@ -0,0 +1,9 @@
[package]
name = "safe_arith"
version = "0.1.0"
authors = ["Michael Sproul <michael@sigmaprime.io>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]

161
eth2/utils/safe_arith/src/lib.rs Normal file
View File

@ -0,0 +1,161 @@
//! Library for safe arithmetic on integers, avoiding overflow and division by zero.
/// Error representing the failure of an arithmetic operation.
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
pub enum ArithError {
Overflow,
DivisionByZero,
}
type Result<T> = std::result::Result<T, ArithError>;
macro_rules! assign_method {
($name:ident, $op:ident, $doc_op:expr) => {
assign_method!($name, $op, Self, $doc_op);
};
($name:ident, $op:ident, $rhs_ty:ty, $doc_op:expr) => {
#[doc = "Safe variant of `"]
#[doc = $doc_op]
#[doc = "`."]
fn $name(&mut self, other: $rhs_ty) -> Result<()> {
*self = self.$op(other)?;
Ok(())
}
};
}
/// Trait providing safe arithmetic operations for built-in types.
pub trait SafeArith: Sized + Copy {
const ZERO: Self;
const ONE: Self;
/// Safe variant of `+` that guards against overflow.
fn safe_add(&self, other: Self) -> Result<Self>;
/// Safe variant of `-` that guards against overflow.
fn safe_sub(&self, other: Self) -> Result<Self>;
/// Safe variant of `*` that guards against overflow.
fn safe_mul(&self, other: Self) -> Result<Self>;
/// Safe variant of `/` that guards against division by 0.
fn safe_div(&self, other: Self) -> Result<Self>;
/// Safe variant of `%` that guards against division by 0.
fn safe_rem(&self, other: Self) -> Result<Self>;
/// Safe variant of `<<` that guards against overflow.
fn safe_shl(&self, other: u32) -> Result<Self>;
/// Safe variant of `>>` that guards against overflow.
fn safe_shr(&self, other: u32) -> Result<Self>;
assign_method!(safe_add_assign, safe_add, "+=");
assign_method!(safe_sub_assign, safe_sub, "-=");
assign_method!(safe_mul_assign, safe_mul, "*=");
assign_method!(safe_div_assign, safe_div, "/=");
assign_method!(safe_rem_assign, safe_rem, "%=");
assign_method!(safe_shl_assign, safe_shl, u32, "<<=");
assign_method!(safe_shr_assign, safe_shr, u32, ">>=");
/// Mutate `self` by adding 1, erroring on overflow.
fn increment(&mut self) -> Result<()> {
self.safe_add_assign(Self::ONE)
}
}
macro_rules! impl_safe_arith {
($typ:ty) => {
impl SafeArith for $typ {
const ZERO: Self = 0;
const ONE: Self = 1;
fn safe_add(&self, other: Self) -> Result<Self> {
self.checked_add(other).ok_or(ArithError::Overflow)
}
fn safe_sub(&self, other: Self) -> Result<Self> {
self.checked_sub(other).ok_or(ArithError::Overflow)
}
fn safe_mul(&self, other: Self) -> Result<Self> {
self.checked_mul(other).ok_or(ArithError::Overflow)
}
fn safe_div(&self, other: Self) -> Result<Self> {
self.checked_div(other).ok_or(ArithError::DivisionByZero)
}
fn safe_rem(&self, other: Self) -> Result<Self> {
self.checked_rem(other).ok_or(ArithError::DivisionByZero)
}
fn safe_shl(&self, other: u32) -> Result<Self> {
self.checked_shl(other).ok_or(ArithError::Overflow)
}
fn safe_shr(&self, other: u32) -> Result<Self> {
self.checked_shr(other).ok_or(ArithError::Overflow)
}
}
};
}
impl_safe_arith!(u8);
impl_safe_arith!(u16);
impl_safe_arith!(u32);
impl_safe_arith!(u64);
impl_safe_arith!(usize);
impl_safe_arith!(i8);
impl_safe_arith!(i16);
impl_safe_arith!(i32);
impl_safe_arith!(i64);
impl_safe_arith!(isize);
#[cfg(test)]
mod test {
use super::*;
#[test]
fn basic() {
let x = 10u32;
let y = 11;
assert_eq!(x.safe_add(y), Ok(x + y));
assert_eq!(y.safe_sub(x), Ok(y - x));
assert_eq!(x.safe_mul(y), Ok(x * y));
assert_eq!(x.safe_div(y), Ok(x / y));
assert_eq!(x.safe_rem(y), Ok(x % y));
assert_eq!(x.safe_shl(1), Ok(x << 1));
assert_eq!(x.safe_shr(1), Ok(x >> 1));
}
#[test]
fn mutate() {
let mut x = 0u8;
x.increment().unwrap();
x.increment().unwrap();
assert_eq!(x, 2);
x.safe_sub_assign(1).unwrap();
assert_eq!(x, 1);
x.safe_shl_assign(1).unwrap();
assert_eq!(x, 2);
x.safe_mul_assign(3).unwrap();
assert_eq!(x, 6);
x.safe_div_assign(4).unwrap();
assert_eq!(x, 1);
x.safe_shr_assign(1).unwrap();
assert_eq!(x, 0);
}
#[test]
fn errors() {
assert!(u32::max_value().safe_add(1).is_err());
assert!(u32::min_value().safe_sub(1).is_err());
assert!(u32::max_value().safe_mul(2).is_err());
assert!(u32::max_value().safe_div(0).is_err());
assert!(u32::max_value().safe_rem(0).is_err());
assert!(u32::max_value().safe_shl(32).is_err());
assert!(u32::max_value().safe_shr(32).is_err());
}
}

1
eth2/utils/serde_hex/src/lib.rs
View File

@ -1,4 +1,3 @@
use hex;
use hex::ToHex;
use serde::de::{self, Visitor};
use std::fmt;

91
eth2/utils/ssz/src/decode.rs
View File

@ -21,10 +21,72 @@ pub enum DecodeError {
/// length items (i.e., `length[0] < BYTES_PER_LENGTH_OFFSET`).
/// - When decoding variable-length items, the `n`'th offset was less than the `n-1`'th offset.
OutOfBoundsByte { i: usize },
/// An offset points “backwards” into the fixed-bytes portion of the message, essentially
/// double-decoding bytes that will also be decoded as fixed-length.
///
/// https://notes.ethereum.org/ruKvDXl6QOW3gnqVYb8ezA?view#1-Offset-into-fixed-portion
OffsetIntoFixedPortion(usize),
/// The first offset does not point to the byte that follows the fixed byte portion,
/// essentially skipping a variable-length byte.
///
/// https://notes.ethereum.org/ruKvDXl6QOW3gnqVYb8ezA?view#2-Skip-first-variable-byte
OffsetSkipsVariableBytes(usize),
/// An offset points to bytes prior to the previous offset. Depending on how you look at it,
/// this either double-decodes bytes or makes the first offset a negative-length.
///
/// https://notes.ethereum.org/ruKvDXl6QOW3gnqVYb8ezA?view#3-Offsets-are-decreasing
OffsetsAreDecreasing(usize),
/// An offset references byte indices that do not exist in the source bytes.
///
/// https://notes.ethereum.org/ruKvDXl6QOW3gnqVYb8ezA?view#4-Offsets-are-out-of-bounds
OffsetOutOfBounds(usize),
/// A variable-length list does not have a fixed portion that is cleanly divisible by
/// `BYTES_PER_LENGTH_OFFSET`.
InvalidListFixedBytesLen(usize),
/// Some item has a `ssz_fixed_len` of zero. This is illegal.
ZeroLengthItem,
/// The given bytes were invalid for some application-level reason.
BytesInvalid(String),
}
/// Performs checks on the `offset` based upon the other parameters provided.
///
/// ## Detail
///
/// - `offset`: the offset bytes (e.g., result of `read_offset(..)`).
/// - `previous_offset`: unless this is the first offset in the SSZ object, the value of the
/// previously-read offset. Used to ensure offsets are not decreasing.
/// - `num_bytes`: the total number of bytes in the SSZ object. Used to ensure the offset is not
/// out of bounds.
/// - `num_fixed_bytes`: the number of fixed-bytes in the struct, if it is known. Used to ensure
/// that the first offset doesn't skip any variable bytes.
///
/// ## References
///
/// The checks here are derived from this document:
///
/// https://notes.ethereum.org/ruKvDXl6QOW3gnqVYb8ezA?view
pub fn sanitize_offset(
offset: usize,
previous_offset: Option<usize>,
num_bytes: usize,
num_fixed_bytes: Option<usize>,
) -> Result<usize, DecodeError> {
if num_fixed_bytes.map_or(false, |fixed_bytes| offset < fixed_bytes) {
Err(DecodeError::OffsetIntoFixedPortion(offset))
} else if previous_offset.is_none()
&& num_fixed_bytes.map_or(false, |fixed_bytes| offset != fixed_bytes)
{
Err(DecodeError::OffsetSkipsVariableBytes(offset))
} else if offset > num_bytes {
Err(DecodeError::OffsetOutOfBounds(offset))
} else if previous_offset.map_or(false, |prev| prev > offset) {
Err(DecodeError::OffsetsAreDecreasing(offset))
} else {
Ok(offset)
}
}
/// Provides SSZ decoding (de-serialization) via the `from_ssz_bytes(&bytes)` method.
///
/// See `examples/` for manual implementations or the crate root for implementations using
@ -97,21 +159,14 @@ impl<'a> SszDecoderBuilder<'a> {
self.items.push(slice);
} else {
let offset = read_offset(&self.bytes[self.items_index..])?;
let previous_offset = self
.offsets
.last()
.map(|o| o.offset)
.unwrap_or_else(|| BYTES_PER_LENGTH_OFFSET);
if (previous_offset > offset) || (offset > self.bytes.len()) {
return Err(DecodeError::OutOfBoundsByte { i: offset });
}
self.offsets.push(Offset {
position: self.items.len(),
offset,
offset: sanitize_offset(
read_offset(&self.bytes[self.items_index..])?,
self.offsets.last().map(|o| o.offset),
self.bytes.len(),
None,
)?,
});
// Push an empty slice into items; it will be replaced later.
@ -124,13 +179,13 @@ impl<'a> SszDecoderBuilder<'a> {
}
fn finalize(&mut self) -> Result<(), DecodeError> {
if !self.offsets.is_empty() {
if let Some(first_offset) = self.offsets.first().map(|o| o.offset) {
// Check to ensure the first offset points to the byte immediately following the
// fixed-length bytes.
if self.offsets[0].offset != self.items_index {
return Err(DecodeError::OutOfBoundsByte {
i: self.offsets[0].offset,
});
if first_offset < self.items_index {
return Err(DecodeError::OffsetIntoFixedPortion(first_offset));
} else if first_offset > self.items_index {
return Err(DecodeError::OffsetSkipsVariableBytes(first_offset));
}
// Iterate through each pair of offsets, grabbing the slice between each of the offsets.

121
eth2/utils/ssz/src/decode/impls.rs
View File

@ -366,7 +366,7 @@ impl_decodable_for_u8_array!(4);
impl_decodable_for_u8_array!(32);
macro_rules! impl_for_vec {
($type: ty) => {
($type: ty, $max_len: expr) => {
impl<T: Decode> Decode for $type {
fn is_ssz_fixed_len() -> bool {
false
@ -381,22 +381,22 @@ macro_rules! impl_for_vec {
.map(|chunk| T::from_ssz_bytes(chunk))
.collect()
} else {
decode_list_of_variable_length_items(bytes).map(|vec| vec.into())
decode_list_of_variable_length_items(bytes, $max_len).map(|vec| vec.into())
}
}
}
};
}
impl_for_vec!(Vec<T>);
impl_for_vec!(SmallVec<[T; 1]>);
impl_for_vec!(SmallVec<[T; 2]>);
impl_for_vec!(SmallVec<[T; 3]>);
impl_for_vec!(SmallVec<[T; 4]>);
impl_for_vec!(SmallVec<[T; 5]>);
impl_for_vec!(SmallVec<[T; 6]>);
impl_for_vec!(SmallVec<[T; 7]>);
impl_for_vec!(SmallVec<[T; 8]>);
impl_for_vec!(Vec<T>, None);
impl_for_vec!(SmallVec<[T; 1]>, Some(1));
impl_for_vec!(SmallVec<[T; 2]>, Some(2));
impl_for_vec!(SmallVec<[T; 3]>, Some(3));
impl_for_vec!(SmallVec<[T; 4]>, Some(4));
impl_for_vec!(SmallVec<[T; 5]>, Some(5));
impl_for_vec!(SmallVec<[T; 6]>, Some(6));
impl_for_vec!(SmallVec<[T; 7]>, Some(7));
impl_for_vec!(SmallVec<[T; 8]>, Some(8));
/// Decodes `bytes` as if it were a list of variable-length items.
///
@ -405,43 +405,52 @@ impl_for_vec!(SmallVec<[T; 8]>);
/// differing types.
pub fn decode_list_of_variable_length_items<T: Decode>(
bytes: &[u8],
max_len: Option<usize>,
) -> Result<Vec<T>, DecodeError> {
let mut next_variable_byte = read_offset(bytes)?;
// The value of the first offset must not point back into the same bytes that defined
// it.
if next_variable_byte < BYTES_PER_LENGTH_OFFSET {
return Err(DecodeError::OutOfBoundsByte {
i: next_variable_byte,
});
if bytes.is_empty() {
return Ok(vec![]);
}
let num_items = next_variable_byte / BYTES_PER_LENGTH_OFFSET;
let first_offset = read_offset(bytes)?;
sanitize_offset(first_offset, None, bytes.len(), Some(first_offset))?;
// The fixed-length section must be a clean multiple of `BYTES_PER_LENGTH_OFFSET`.
if next_variable_byte != num_items * BYTES_PER_LENGTH_OFFSET {
return Err(DecodeError::InvalidByteLength {
len: next_variable_byte,
expected: num_items * BYTES_PER_LENGTH_OFFSET,
});
if first_offset % BYTES_PER_LENGTH_OFFSET != 0 || first_offset < BYTES_PER_LENGTH_OFFSET {
return Err(DecodeError::InvalidListFixedBytesLen(first_offset));
}
let mut values = Vec::with_capacity(num_items);
for i in 1..=num_items {
let slice_option = if i == num_items {
bytes.get(next_variable_byte..)
let num_items = first_offset / BYTES_PER_LENGTH_OFFSET;
if max_len.map_or(false, |max| num_items > max) {
return Err(DecodeError::BytesInvalid(format!(
"Variable length list of {} items exceeds maximum of {:?}",
num_items, max_len
)));
}
// Only initialize the vec with a capacity if a maximum length is provided.
//
// We assume that if a max length is provided then the application is able to handle an
// allocation of this size.
let mut values = if max_len.is_some() {
Vec::with_capacity(num_items)
} else {
let offset = read_offset(&bytes[(i * BYTES_PER_LENGTH_OFFSET)..])?;
let start = next_variable_byte;
next_variable_byte = offset;
bytes.get(start..next_variable_byte)
vec![]
};
let slice = slice_option.ok_or_else(|| DecodeError::OutOfBoundsByte {
i: next_variable_byte,
})?;
let mut offset = first_offset;
for i in 1..=num_items {
let slice_option = if i == num_items {
bytes.get(offset..)
} else {
let start = offset;
let next_offset = read_offset(&bytes[(i * BYTES_PER_LENGTH_OFFSET)..])?;
offset = sanitize_offset(next_offset, Some(offset), bytes.len(), Some(first_offset))?;
bytes.get(start..offset)
};
let slice = slice_option.ok_or_else(|| DecodeError::OutOfBoundsByte { i: offset })?;
values.push(T::from_ssz_bytes(slice)?);
}
@ -519,26 +528,34 @@ mod tests {
);
}
#[test]
fn empty_list() {
let vec: Vec<Vec<u16>> = vec![];
let bytes = vec.as_ssz_bytes();
assert!(bytes.is_empty());
assert_eq!(Vec::from_ssz_bytes(&bytes), Ok(vec),);
}
#[test]
fn first_length_points_backwards() {
assert_eq!(
<Vec<Vec<u16>>>::from_ssz_bytes(&[0, 0, 0, 0]),
Err(DecodeError::OutOfBoundsByte { i: 0 })
Err(DecodeError::InvalidListFixedBytesLen(0))
);
assert_eq!(
<Vec<Vec<u16>>>::from_ssz_bytes(&[1, 0, 0, 0]),
Err(DecodeError::OutOfBoundsByte { i: 1 })
Err(DecodeError::InvalidListFixedBytesLen(1))
);
assert_eq!(
<Vec<Vec<u16>>>::from_ssz_bytes(&[2, 0, 0, 0]),
Err(DecodeError::OutOfBoundsByte { i: 2 })
Err(DecodeError::InvalidListFixedBytesLen(2))
);
assert_eq!(
<Vec<Vec<u16>>>::from_ssz_bytes(&[3, 0, 0, 0]),
Err(DecodeError::OutOfBoundsByte { i: 3 })
Err(DecodeError::InvalidListFixedBytesLen(3))
);
}
@ -546,7 +563,7 @@ mod tests {
fn lengths_are_decreasing() {
assert_eq!(
<Vec<Vec<u16>>>::from_ssz_bytes(&[12, 0, 0, 0, 14, 0, 0, 0, 12, 0, 0, 0, 1, 0, 1, 0]),
Err(DecodeError::OutOfBoundsByte { i: 12 })
Err(DecodeError::OffsetsAreDecreasing(12))
);
}
@ -554,10 +571,7 @@ mod tests {
fn awkward_fixed_length_portion() {
assert_eq!(
<Vec<Vec<u16>>>::from_ssz_bytes(&[10, 0, 0, 0, 10, 0, 0, 0, 0, 0]),
Err(DecodeError::InvalidByteLength {
len: 10,
expected: 8
})
Err(DecodeError::InvalidListFixedBytesLen(10))
);
}
@ -565,14 +579,15 @@ mod tests {
fn length_out_of_bounds() {
assert_eq!(
<Vec<Vec<u16>>>::from_ssz_bytes(&[5, 0, 0, 0]),
Err(DecodeError::InvalidByteLength {
len: 5,
expected: 4
})
Err(DecodeError::OffsetOutOfBounds(5))
);
assert_eq!(
<Vec<Vec<u16>>>::from_ssz_bytes(&[8, 0, 0, 0, 9, 0, 0, 0]),
Err(DecodeError::OutOfBoundsByte { i: 9 })
Err(DecodeError::OffsetOutOfBounds(9))
);
assert_eq!(
<Vec<Vec<u16>>>::from_ssz_bytes(&[8, 0, 0, 0, 16, 0, 0, 0]),
Err(DecodeError::OffsetOutOfBounds(16))
);
}

6
eth2/utils/ssz/tests/tests.rs
View File

@ -152,7 +152,7 @@ mod round_trip {
assert_eq!(
VariableLen::from_ssz_bytes(&bytes),
Err(DecodeError::OutOfBoundsByte { i: 9 })
Err(DecodeError::OffsetIntoFixedPortion(9))
);
}
@ -182,7 +182,7 @@ mod round_trip {
assert_eq!(
VariableLen::from_ssz_bytes(&bytes),
Err(DecodeError::OutOfBoundsByte { i: 11 })
Err(DecodeError::OffsetSkipsVariableBytes(11))
);
}
@ -284,7 +284,7 @@ mod round_trip {
assert_eq!(
ThreeVariableLen::from_ssz_bytes(&bytes),
Err(DecodeError::OutOfBoundsByte { i: 14 })
Err(DecodeError::OffsetsAreDecreasing(14))
);
}

2
eth2/utils/ssz_derive/src/lib.rs
View File

@ -86,6 +86,7 @@ pub fn ssz_encode_derive(input: TokenStream) -> TokenStream {
let field_types_f = field_types_a.clone();
let output = quote! {
#[allow(clippy::integer_arithmetic)]
impl #impl_generics ssz::Encode for #name #ty_generics #where_clause {
fn is_ssz_fixed_len() -> bool {
#(
@ -221,6 +222,7 @@ pub fn ssz_decode_derive(input: TokenStream) -> TokenStream {
}
let output = quote! {
#[allow(clippy::integer_arithmetic)]
impl #impl_generics ssz::Decode for #name #ty_generics #where_clause {
fn is_ssz_fixed_len() -> bool {
#(

21
eth2/utils/ssz_types/src/fixed_vector.rs
View File

@ -224,29 +224,44 @@ where
}
fn from_ssz_bytes(bytes: &[u8]) -> Result<Self, ssz::DecodeError> {
let fixed_len = N::to_usize();
if bytes.is_empty() {
Err(ssz::DecodeError::InvalidByteLength {
len: 0,
expected: 1,
})
} else if T::is_ssz_fixed_len() {
let num_items = bytes
.len()
.checked_div(T::ssz_fixed_len())
.ok_or_else(|| ssz::DecodeError::ZeroLengthItem)?;
if num_items != fixed_len {
return Err(ssz::DecodeError::BytesInvalid(format!(
"FixedVector of {} items has {} items",
num_items, fixed_len
)));
}
bytes
.chunks(T::ssz_fixed_len())
.map(|chunk| T::from_ssz_bytes(chunk))
.collect::<Result<Vec<T>, _>>()
.and_then(|vec| {
if vec.len() == N::to_usize() {
if vec.len() == fixed_len {
Ok(vec.into())
} else {
Err(ssz::DecodeError::BytesInvalid(format!(
"wrong number of vec elements, got: {}, expected: {}",
"Wrong number of FixedVector elements, got: {}, expected: {}",
vec.len(),
N::to_usize()
)))
}
})
} else {
ssz::decode_list_of_variable_length_items(bytes).and_then(|vec| Ok(vec.into()))
ssz::decode_list_of_variable_length_items(bytes, Some(fixed_len))
.and_then(|vec| Ok(vec.into()))
}
}
}

35
eth2/utils/ssz_types/src/variable_list.rs
View File

@ -218,22 +218,41 @@ where
}
}
impl<T, N: Unsigned> ssz::Decode for VariableList<T, N>
impl<T, N> ssz::Decode for VariableList<T, N>
where
T: ssz::Decode,
N: Unsigned,
{
fn is_ssz_fixed_len() -> bool {
<Vec<T>>::is_ssz_fixed_len()
}
fn ssz_fixed_len() -> usize {
<Vec<T>>::ssz_fixed_len()
false
}
fn from_ssz_bytes(bytes: &[u8]) -> Result<Self, ssz::DecodeError> {
let vec = <Vec<T>>::from_ssz_bytes(bytes)?;
let max_len = N::to_usize();
Self::new(vec).map_err(|e| ssz::DecodeError::BytesInvalid(format!("VariableList {:?}", e)))
if bytes.is_empty() {
Ok(vec![].into())
} else if T::is_ssz_fixed_len() {
let num_items = bytes
.len()
.checked_div(T::ssz_fixed_len())
.ok_or_else(|| ssz::DecodeError::ZeroLengthItem)?;
if num_items > max_len {
return Err(ssz::DecodeError::BytesInvalid(format!(
"VariableList of {} items exceeds maximum of {}",
num_items, max_len
)));
}
bytes
.chunks(T::ssz_fixed_len())
.map(|chunk| T::from_ssz_bytes(chunk))
.collect::<Result<Vec<_>, _>>()
.map(Into::into)
} else {
ssz::decode_list_of_variable_length_items(bytes, Some(max_len)).map(|vec| vec.into())
}
}
}

4
eth2/utils/tree_hash/src/merkle_hasher.rs
View File

@ -274,8 +274,7 @@ impl MerkleHasher {
loop {
if let Some(root) = self.root {
break Ok(root);
} else {
if let Some(node) = self.half_nodes.last() {
} else if let Some(node) = self.half_nodes.last() {
let right_child = node.id * 2 + 1;
self.process_right_node(right_child, self.zero_hash(right_child));
} else if self.next_leaf == 1 {
@ -292,7 +291,6 @@ impl MerkleHasher {
}
}
}
}
/// Process a node that will become the left-hand node of some parent. The supplied `id` is
/// that of the node (not the parent). The `preimage` is the value of the node (i.e., if this

8
lcli/src/helpers.rs
View File

@ -29,6 +29,14 @@ pub fn parse_path_with_default_in_home_dir(
})
}
pub fn parse_path(matches: &ArgMatches, name: &'static str) -> Result<PathBuf, String> {
matches
.value_of(name)
.ok_or_else(|| format!("{} not specified", name))?
.parse::<PathBuf>()
.map_err(|e| format!("Unable to parse {}: {}", name, e))
}
pub fn parse_u64(matches: &ArgMatches, name: &'static str) -> Result<u64, String> {
matches
.value_of(name)

40
lcli/src/parse_ssz.rs Normal file
View File

@ -0,0 +1,40 @@
use crate::helpers::parse_path;
use clap::ArgMatches;
use serde::Serialize;
use ssz::Decode;
use std::fs::File;
use std::io::Read;
use types::{EthSpec, SignedBeaconBlock};
pub fn run<T: EthSpec>(matches: &ArgMatches) -> Result<(), String> {
let type_str = matches
.value_of("type")
.ok_or_else(|| "No type supplied".to_string())?;
let path = parse_path(matches, "path")?;
info!("Type: {:?}", type_str);
let mut bytes = vec![];
let mut file = File::open(&path).map_err(|e| format!("Unable to open {:?}: {}", path, e))?;
file.read_to_end(&mut bytes)
.map_err(|e| format!("Unable to read {:?}: {}", path, e))?;
match type_str {
"SignedBeaconBlock" => decode_and_print::<SignedBeaconBlock<T>>(&bytes)?,
other => return Err(format!("Unknown type: {}", other)),
};
Ok(())
}
fn decode_and_print<T: Decode + Serialize>(bytes: &[u8]) -> Result<(), String> {
let item = T::from_ssz_bytes(&bytes).map_err(|e| format!("Ssz decode failed: {:?}", e))?;
println!(
"{}",
serde_yaml::to_string(&item)
.map_err(|e| format!("Unable to write object to YAML: {:?}", e))?
);
Ok(())
}