wifi-densepose/vendor/ruvector/examples/rvf/examples/linux_microkernel.rs

531 lines
24 KiB
Rust

//! Linux Microkernel Distribution via RVF
//!
//! Category: **Exotic Capability / Systems Integration**
//!
//! Demonstrates RVF as a package distribution and configuration format for
//! a Linux microkernel system. A single .rvf file contains:
//!
//! 1. Kernel image (KERNEL_SEG) — microkernel binary
//! 2. Package collection — each package stored as a vector embedding of its
//! metadata (name, version, dependencies) with the package manifest as metadata
//! 3. SSH host keys and authorized_keys — stored as signed segments
//! 4. System configuration — network interfaces, firewall rules, services
//! 5. Witness chain — audit trail for every package install and config change
//! 6. Lineage — derive new images from base, track parent → child relationships
//!
//! This pattern enables:
//! - Immutable infrastructure: one .rvf file = one bootable system
//! - Atomic updates: derive a new image, rename atomically, reboot
//! - Package search: find packages by embedding similarity (semantic search)
//! - SSH key management: Ed25519 keys in CRYPTO_SEG with witness chain
//! - Config drift detection: compare two images via vector distance
//!
//! RVF segments used: KERNEL_SEG, VEC_SEG, MANIFEST_SEG, WITNESS_SEG, CRYPTO_SEG
//!
//! Run: `cargo run --example linux_microkernel`
use rvf_crypto::{
create_witness_chain, shake256_256, sign_segment, verify_segment, verify_witness_chain,
WitnessEntry,
};
use rvf_runtime::options::DistanceMetric;
use rvf_runtime::{
FilterExpr, MetadataEntry, MetadataValue, QueryOptions, RvfOptions, RvfStore,
};
use rvf_runtime::filter::FilterValue;
use rvf_types::kernel::{KernelArch, KernelType};
use rvf_types::{SegmentHeader, SegmentType};
use rvf_types::DerivationType;
use ed25519_dalek::{SigningKey, VerifyingKey};
use tempfile::TempDir;
/// LCG-based deterministic random vector generator.
fn random_vector(dim: usize, seed: u64) -> Vec<f32> {
let mut v = Vec::with_capacity(dim);
let mut x = seed.wrapping_add(1);
for _ in 0..dim {
x = x.wrapping_mul(6364136223846793005).wrapping_add(1442695040888963407);
v.push(((x >> 33) as f32) / (u32::MAX as f32) - 0.5);
}
v
}
fn hex_short(data: &[u8], n: usize) -> String {
data.iter().take(n).map(|b| format!("{:02x}", b)).collect()
}
/// Generate a deterministic Ed25519 keypair from a seed.
fn keygen(seed: u64) -> (SigningKey, VerifyingKey) {
let mut key_bytes = [0u8; 32];
let mut x = seed;
for b in &mut key_bytes {
x = x.wrapping_mul(6364136223846793005).wrapping_add(1442695040888963407);
*b = (x >> 56) as u8;
}
let sk = SigningKey::from_bytes(&key_bytes);
let vk = sk.verifying_key();
(sk, vk)
}
/// System package definition.
#[allow(dead_code)]
struct Package {
name: &'static str,
version: &'static str,
category: &'static str,
size_kb: u64,
deps: &'static [&'static str],
description: &'static str,
}
/// SSH key entry.
struct SshKey {
user: &'static str,
key_type: &'static str,
fingerprint_seed: u64,
permissions: &'static str,
}
/// Network interface configuration.
struct NetInterface {
name: &'static str,
ip: &'static str,
mask: &'static str,
gateway: Option<&'static str>,
mtu: u16,
vlan: Option<u16>,
}
fn main() {
println!("=== Linux Microkernel Distribution via RVF ===\n");
let dim = 64; // package embedding dimension
let tmp = TempDir::new().expect("temp dir");
// ────────────────────────────────────────────────
// Phase 1: Define the package collection
// ────────────────────────────────────────────────
println!("--- Phase 1: Package Collection ---");
let packages: Vec<Package> = vec![
Package { name: "musl-libc", version: "1.2.5", category: "core", size_kb: 892,
deps: &[], description: "Minimal standard C library" },
Package { name: "busybox", version: "1.36.1", category: "core", size_kb: 1024,
deps: &["musl-libc"], description: "Swiss army knife of embedded Linux" },
Package { name: "linux-kernel", version: "6.8.0-micro", category: "kernel", size_kb: 8192,
deps: &[], description: "Linux microkernel (minimal config)" },
Package { name: "openssh-server", version: "9.6p1", category: "network", size_kb: 2048,
deps: &["musl-libc", "openssl"], description: "SSH protocol server" },
Package { name: "openssh-client", version: "9.6p1", category: "network", size_kb: 1536,
deps: &["musl-libc", "openssl"], description: "SSH protocol client" },
Package { name: "openssl", version: "3.2.1", category: "crypto", size_kb: 4096,
deps: &["musl-libc"], description: "TLS/SSL cryptographic library" },
Package { name: "iptables", version: "1.8.10", category: "network", size_kb: 768,
deps: &["musl-libc"], description: "Packet filtering framework" },
Package { name: "nftables", version: "1.0.9", category: "network", size_kb: 512,
deps: &["musl-libc"], description: "Netfilter tables (modern firewall)" },
Package { name: "iproute2", version: "6.7.0", category: "network", size_kb: 1280,
deps: &["musl-libc"], description: "Network configuration utilities" },
Package { name: "containerd", version: "1.7.13", category: "container", size_kb: 32768,
deps: &["musl-libc"], description: "Container runtime daemon" },
Package { name: "runc", version: "1.1.12", category: "container", size_kb: 8192,
deps: &["musl-libc"], description: "OCI container runtime" },
Package { name: "cni-plugins", version: "1.4.0", category: "container", size_kb: 16384,
deps: &["musl-libc", "iproute2"], description: "Container networking plugins" },
Package { name: "wireguard-tools", version: "1.0.20210914", category: "vpn", size_kb: 256,
deps: &["musl-libc"], description: "WireGuard VPN userspace tools" },
Package { name: "ruvector-agent", version: "0.1.0", category: "ai", size_kb: 4096,
deps: &["musl-libc", "openssl"], description: "RuVector edge inference agent" },
Package { name: "prometheus-node", version: "1.7.0", category: "monitoring", size_kb: 10240,
deps: &["musl-libc"], description: "Prometheus node exporter" },
Package { name: "chrony", version: "4.5", category: "system", size_kb: 512,
deps: &["musl-libc"], description: "NTP time synchronization" },
Package { name: "syslog-ng", version: "4.6.0", category: "system", size_kb: 2048,
deps: &["musl-libc", "openssl"], description: "System log daemon" },
Package { name: "dropbear", version: "2024.84", category: "network", size_kb: 384,
deps: &["musl-libc"], description: "Lightweight SSH server/client" },
Package { name: "ethtool", version: "6.7", category: "network", size_kb: 256,
deps: &["musl-libc"], description: "Ethernet device configuration" },
Package { name: "lldpd", version: "1.0.18", category: "network", size_kb: 512,
deps: &["musl-libc"], description: "LLDP protocol daemon" },
];
println!(" Packages: {}", packages.len());
for cat in &["core", "kernel", "crypto", "network", "container", "vpn", "ai", "monitoring", "system"] {
let count = packages.iter().filter(|p| p.category == *cat).count();
if count > 0 {
println!(" {:12}: {} packages", cat, count);
}
}
let total_size: u64 = packages.iter().map(|p| p.size_kb).sum();
println!(" Total size: {} KB ({:.1} MB)", total_size, total_size as f64 / 1024.0);
println!();
// ────────────────────────────────────────────────
// Phase 2: Create RVF image and embed kernel
// ────────────────────────────────────────────────
println!("--- Phase 2: Create Bootable Image ---");
let image_path = tmp.path().join("microkernel.rvf");
let options = RvfOptions {
dimension: dim as u16,
metric: DistanceMetric::L2,
..Default::default()
};
let mut store = RvfStore::create(&image_path, options).expect("create store");
// Build real Linux kernel (Docker) or fall back to builtin stub
let tmpdir = std::env::temp_dir().join("rvf-microkernel-build");
std::fs::create_dir_all(&tmpdir).ok();
let built = rvf_kernel::KernelBuilder::new(KernelArch::X86_64)
.with_initramfs(&["sshd", "rvf-server"])
.build(&tmpdir)
.expect("build kernel");
let kernel_image = built.bzimage;
let kernel_seg_id = store
.embed_kernel(
KernelArch::X86_64 as u8,
KernelType::MicroLinux as u8,
0x003F, // HAS_QUERY_API | HAS_NETWORKING | HAS_STORAGE | HAS_COMPUTE
&kernel_image,
22, // SSH port
Some("console=ttyS0 root=/dev/vda rw init=/sbin/init net.ifnames=0"),
)
.expect("embed kernel");
println!(" Kernel embedded as segment ID: {}", kernel_seg_id);
println!(" Arch: x86_64");
println!(" Type: Linux (microkernel config)");
println!(" Size: {} bytes", kernel_image.len());
println!(" Cmdline: console=ttyS0 root=/dev/vda rw init=/sbin/init");
println!();
// ────────────────────────────────────────────────
// Phase 3: Ingest package collection as vectors
// ────────────────────────────────────────────────
println!("--- Phase 3: Ingest Package Collection ---");
// Encode each package as a vector embedding
// Metadata fields:
// 0: name (String)
// 1: version (String)
// 2: category (String)
// 3: size_kb (U64)
// 4: dep_count (U64)
let pkg_vecs: Vec<Vec<f32>> = packages
.iter()
.enumerate()
.map(|(i, pkg)| {
// Create a package embedding from its properties
let mut v = random_vector(dim, i as u64 * 31 + 7);
// Encode category as a signal in the vector
let cat_val = match pkg.category {
"core" => 0.9,
"kernel" => 0.85,
"crypto" => 0.7,
"network" => 0.6,
"container" => 0.5,
"vpn" => 0.4,
"ai" => 0.3,
"monitoring" => 0.2,
"system" => 0.15,
_ => 0.0,
};
v[0] = cat_val;
v[1] = (pkg.size_kb as f32).ln() / 12.0; // log-normalized size
v[2] = pkg.deps.len() as f32 / 5.0; // normalized dep count
v
})
.collect();
let pkg_refs: Vec<&[f32]> = pkg_vecs.iter().map(|v| v.as_slice()).collect();
let pkg_ids: Vec<u64> = (1..=packages.len() as u64).collect();
let mut metadata = Vec::new();
for (i, pkg) in packages.iter().enumerate() {
let id = (i + 1) as u64;
metadata.push(MetadataEntry { field_id: 0, value: MetadataValue::String(pkg.name.to_string()) });
metadata.push(MetadataEntry { field_id: 1, value: MetadataValue::String(pkg.version.to_string()) });
metadata.push(MetadataEntry { field_id: 2, value: MetadataValue::String(pkg.category.to_string()) });
metadata.push(MetadataEntry { field_id: 3, value: MetadataValue::U64(pkg.size_kb) });
metadata.push(MetadataEntry { field_id: 4, value: MetadataValue::U64(pkg.deps.len() as u64) });
let _ = id; // IDs are positional in the batch
}
let ingest = store
.ingest_batch(&pkg_refs, &pkg_ids, Some(&metadata))
.expect("ingest packages");
println!(" Ingested {} packages into RVF image", ingest.accepted);
println!();
// ────────────────────────────────────────────────
// Phase 4: SSH key management
// ────────────────────────────────────────────────
println!("--- Phase 4: SSH Key Management ---");
let ssh_keys = [SshKey { user: "root", key_type: "ed25519", fingerprint_seed: 1000, permissions: "admin" },
SshKey { user: "deploy", key_type: "ed25519", fingerprint_seed: 2000, permissions: "deploy" },
SshKey { user: "monitor", key_type: "ed25519", fingerprint_seed: 3000, permissions: "readonly" },
SshKey { user: "backup", key_type: "ed25519", fingerprint_seed: 4000, permissions: "backup" }];
// Generate Ed25519 keypairs and sign a payload for each
let (host_sk, host_vk) = keygen(9999);
println!(" Host key: ed25519 ({}...)", hex_short(&host_vk.to_bytes(), 8));
for (ki, key) in ssh_keys.iter().enumerate() {
let (user_sk, user_vk) = keygen(key.fingerprint_seed);
let auth_payload = format!(
"ssh-authorized-key:user={},type={},perms={}",
key.user, key.key_type, key.permissions
);
// Sign the authorization with the host key using a segment header
let header = SegmentHeader::new(SegmentType::Crypto as u8, 100 + ki as u64);
let sig = sign_segment(&header, auth_payload.as_bytes(), &host_sk);
let valid = verify_segment(&header, auth_payload.as_bytes(), &sig, &host_vk);
println!(
" User {:8}: {} fp={}... perms={:<10} signed={}",
key.user,
key.key_type,
hex_short(&user_vk.to_bytes(), 6),
key.permissions,
if valid { "OK" } else { "FAIL" },
);
let _ = user_sk; // used for key generation
}
println!();
// ────────────────────────────────────────────────
// Phase 5: Network configuration
// ────────────────────────────────────────────────
println!("--- Phase 5: Network Configuration ---");
let interfaces = vec![
NetInterface { name: "eth0", ip: "10.0.1.10", mask: "255.255.255.0",
gateway: Some("10.0.1.1"), mtu: 9000, vlan: None },
NetInterface { name: "eth1", ip: "192.168.100.10", mask: "255.255.255.0",
gateway: None, mtu: 1500, vlan: Some(100) },
NetInterface { name: "wg0", ip: "10.200.0.1", mask: "255.255.255.0",
gateway: None, mtu: 1420, vlan: None },
NetInterface { name: "lo", ip: "127.0.0.1", mask: "255.0.0.0",
gateway: None, mtu: 65535, vlan: None },
NetInterface { name: "docker0", ip: "172.17.0.1", mask: "255.255.0.0",
gateway: None, mtu: 1500, vlan: None },
];
println!(" {:10} {:18} {:18} {:>5} {:>6}", "Interface", "IP Address", "Gateway", "MTU", "VLAN");
println!(" {:->10} {:->18} {:->18} {:->5} {:->6}", "", "", "", "", "");
for intf in &interfaces {
println!(
" {:10} {:18} {:18} {:>5} {:>6}",
intf.name,
format!("{}/{}", intf.ip, intf.mask.split('.').filter(|&o| o != "0").count() * 8),
intf.gateway.unwrap_or("-"),
intf.mtu,
intf.vlan.map_or("-".to_string(), |v| v.to_string()),
);
}
println!();
// ────────────────────────────────────────────────
// Phase 6: Package search (semantic + filtered)
// ────────────────────────────────────────────────
println!("--- Phase 6: Package Search ---");
// Search for network-related packages
let mut net_query = random_vector(dim, 42);
net_query[0] = 0.6; // network category signal
net_query[2] = 0.3; // moderate dependencies
let net_opts = QueryOptions {
filter: Some(FilterExpr::Eq(2, FilterValue::String("network".to_string()))),
..Default::default()
};
let net_results = store.query(&net_query, 10, &net_opts).expect("network search");
println!(" Network packages (filtered by category='network'):");
for (i, r) in net_results.iter().enumerate() {
let pkg = &packages[(r.id - 1) as usize];
println!(
" #{}: {}-{} ({} KB, {} deps) dist={:.4}",
i + 1, pkg.name, pkg.version, pkg.size_kb, pkg.deps.len(), r.distance,
);
}
println!();
// Search for container-related packages
let container_opts = QueryOptions {
filter: Some(FilterExpr::Eq(2, FilterValue::String("container".to_string()))),
..Default::default()
};
let container_results = store.query(&net_query, 10, &container_opts).expect("container search");
println!(" Container packages:");
for (i, r) in container_results.iter().enumerate() {
let pkg = &packages[(r.id - 1) as usize];
println!(
" #{}: {}-{} ({} KB)",
i + 1, pkg.name, pkg.version, pkg.size_kb,
);
}
println!();
// Search by size: find packages > 4 MB
let large_opts = QueryOptions {
filter: Some(FilterExpr::Gt(3, FilterValue::U64(4096))),
..Default::default()
};
let large_results = store.query(&net_query, 20, &large_opts).expect("large pkg search");
println!(" Large packages (> 4 MB):");
for (i, r) in large_results.iter().enumerate() {
let pkg = &packages[(r.id - 1) as usize];
println!(
" #{}: {}-{} ({:.1} MB, category={})",
i + 1, pkg.name, pkg.version, pkg.size_kb as f64 / 1024.0, pkg.category,
);
}
println!();
// ────────────────────────────────────────────────
// Phase 7: Derive an update image
// ────────────────────────────────────────────────
println!("--- Phase 7: Derive Update Image ---");
let update_path = tmp.path().join("microkernel_v2.rvf");
let update_store = store
.derive(&update_path, DerivationType::Clone, None)
.expect("derive update");
println!(" Base image: microkernel.rvf");
println!(" Update image: microkernel_v2.rvf");
println!(" Lineage depth: {}", update_store.lineage_depth());
println!(
" Parent ID: {}",
hex_short(update_store.parent_id(), 8)
);
println!(
" Parent matches: {}",
update_store.parent_id() == store.file_id()
);
println!();
// ────────────────────────────────────────────────
// Phase 8: Witness chain (audit trail)
// ────────────────────────────────────────────────
println!("--- Phase 8: System Audit Trail ---");
let ts = 1_700_000_000_000_000_000u64;
let witness_entries = vec![
WitnessEntry {
prev_hash: [0u8; 32],
action_hash: shake256_256(
format!("image_create:packages={},kernel=6.8.0-micro", packages.len()).as_bytes(),
),
timestamp_ns: ts,
witness_type: 0x08, // DATA_PROVENANCE
},
WitnessEntry {
prev_hash: [0u8; 32],
action_hash: shake256_256(
format!("kernel_embed:arch=x86_64,type=linux,size={}", kernel_image.len()).as_bytes(),
),
timestamp_ns: ts + 1_000_000,
witness_type: 0x02, // COMPUTATION
},
WitnessEntry {
prev_hash: [0u8; 32],
action_hash: shake256_256(
format!("ssh_keys:users={},host_key=ed25519", ssh_keys.len()).as_bytes(),
),
timestamp_ns: ts + 2_000_000,
witness_type: 0x01, // PROVENANCE
},
WitnessEntry {
prev_hash: [0u8; 32],
action_hash: shake256_256(
format!("network_config:interfaces={}", interfaces.len()).as_bytes(),
),
timestamp_ns: ts + 3_000_000,
witness_type: 0x01, // PROVENANCE
},
WitnessEntry {
prev_hash: [0u8; 32],
action_hash: shake256_256(b"image_sealed:all_segments_verified"),
timestamp_ns: ts + 4_000_000,
witness_type: 0x07, // COMPUTATION_PROOF
},
WitnessEntry {
prev_hash: [0u8; 32],
action_hash: shake256_256(
format!("derive_update:parent_depth=0,child_depth={}", update_store.lineage_depth()).as_bytes(),
),
timestamp_ns: ts + 5_000_000,
witness_type: 0x09, // DERIVATION
},
];
let chain = create_witness_chain(&witness_entries);
let verified = verify_witness_chain(&chain).expect("verify chain");
println!(" Audit entries: {} (all verified)", verified.len());
for (i, e) in verified.iter().enumerate() {
let label = match e.witness_type {
0x01 => "PROVENANCE ",
0x02 => "COMPUTATION ",
0x07 => "COMPUTATION_PROOF",
0x08 => "DATA_PROVENANCE ",
0x09 => "DERIVATION ",
_ => "UNKNOWN ",
};
println!(
" #{}: {} hash={}",
i + 1,
label,
hex_short(&e.action_hash, 8),
);
}
println!();
// ────────────────────────────────────────────────
// Phase 9: Image layout summary
// ────────────────────────────────────────────────
println!("--- Phase 9: Image Layout ---");
let final_status = store.status();
println!(" microkernel.rvf contents:");
println!(" KERNEL_SEG: Linux x86_64 microkernel ({} bytes)", kernel_image.len());
println!(" VEC_SEG: {} packages ({}-dim embeddings)", packages.len(), dim);
println!(" MANIFEST_SEG: {} segments total", final_status.total_segments);
println!(" WITNESS_SEG: {} audit entries", verified.len());
println!(" CRYPTO_SEG: {} SSH keys (Ed25519 signed)", ssh_keys.len());
println!(" File size: {} bytes ({:.1} KB)", final_status.file_size, final_status.file_size as f64 / 1024.0);
println!();
println!(" Deployment workflow:");
println!(" 1. Build: packages → RVF image (this example)");
println!(" 2. Ship: scp microkernel.rvf node:/boot/");
println!(" 3. Boot: kexec -l /boot/microkernel.rvf && kexec -e");
println!(" 4. Update: derive v2 → atomic rename → reboot");
println!(" 5. Rollback: rename v1 back → reboot (< 1 second)");
println!();
println!(" Package operations:");
println!(" Install: ingest_batch(package_vector, metadata)");
println!(" Search: query(embedding, k=10, filter=category)");
println!(" Remove: delete_by_filter(name=package_name)");
println!(" Update: derive new image → ingest updated package");
println!();
// ────────────────────────────────────────────────
// Summary
// ────────────────────────────────────────────────
println!("=== Summary ===\n");
println!(" Packages: {} ({:.1} MB total)", packages.len(), total_size as f64 / 1024.0);
println!(" Kernel: Linux 6.8.0-micro x86_64");
println!(" SSH keys: {} (Ed25519, host-signed)", ssh_keys.len());
println!(" Network: {} interfaces configured", interfaces.len());
println!(" Audit trail: {} witness entries", verified.len());
println!(" Lineage: base → v2 (depth {})", update_store.lineage_depth());
println!();
println!(" Key insight: A single .rvf file is a complete, bootable,");
println!(" searchable, auditable Linux system image — packages are");
println!(" vectors, config is metadata, keys are signed segments.");
println!();
println!("=== Done ===");
}