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[skip ci] start conversion to using persistent/immutable states

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This commit is contained in:
Christien Rioux 2024-12-28 21:13:40 -05:00
parent 9c68df4274
commit 751d27c30d
19 changed files with 1363 additions and 588 deletions
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39
Cargo.lock generated
View File

@ -728,6 +728,12 @@ version = "2.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
[[package]]
name = "bitmaps"
version = "3.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a1d084b0137aaa901caf9f1e8b21daa6aa24d41cd806e111335541eff9683bd6"
[[package]]
name = "blake2"
version = "0.10.6"
@ -2791,6 +2797,29 @@ dependencies = [
"libc",
]
[[package]]
name = "imbl"
version = "3.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bc3be8d8cd36f33a46b1849f31f837c44d9fa87223baee3b4bd96b8f11df81eb"
dependencies = [
"bitmaps",
"imbl-sized-chunks",
"rand_core",
"rand_xoshiro",
"serde",
"version_check",
]
[[package]]
name = "imbl-sized-chunks"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "144006fb58ed787dcae3f54575ff4349755b00ccc99f4b4873860b654be1ed63"
dependencies = [
"bitmaps",
]
[[package]]
name = "indent"
version = "0.1.1"
@ -4467,6 +4496,15 @@ dependencies = [
"getrandom",
]
[[package]]
name = "rand_xoshiro"
version = "0.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6f97cdb2a36ed4183de61b2f824cc45c9f1037f28afe0a322e9fff4c108b5aaa"
dependencies = [
"rand_core",
]
[[package]]
name = "range-set-blaze"
version = "0.1.16"
@ -6590,6 +6628,7 @@ dependencies = [
"futures_codec",
"getrandom",
"ifstructs",
"imbl",
"ipnet",
"jni",
"jni-sys",

1
veilid-tools/Cargo.toml
View File

@ -84,6 +84,7 @@ backtrace = "0.3.71"
fn_name = "0.1.0"
range-set-blaze = "0.1.16"
flume = { version = "0.11.0", features = ["async"] }
imbl = { version = "3.0.0", features = ["serde"] }
# Dependencies for native builds only
# Linux, Windows, Mac, iOS, Android

0
veilid-tools/src/virtual_network/router_server/machine_registry/weighted_list.rs → veilid-tools/src/rollback_guard.rs
View File

75
veilid-tools/src/virtual_network/router_server/config.rs
View File

@ -312,10 +312,40 @@ fn validate_blueprint_limits(limits: &BlueprintLimits) -> Result<(), ValidationE
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct BlueprintIpv4 {
#[serde(untagged)]
pub enum BlueprintLocation {
Allocation {
allocation: WeightedList<String>,
},
Network {
#[serde(default)]
pub allocation: Option<String>,
pub additional_prefix: u8,
network: Option<WeightedList<String>>,
},
}
fn validate_blueprint_location(
value: &BlueprintLocation,
context: &ValidateContext,
) -> Result<(), ValidationError> {
match value {
BlueprintLocation::Allocation { allocation } => {
allocation.try_for_each(|a| validate_allocation_exists(a, context))?;
}
BlueprintLocation::Network { network } => {
if let Some(network) = network {
network.try_for_each(|n| validate_network_exists(n, context))?;
}
}
}
Ok(())
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct BlueprintIpv4 {
#[serde(flatten)]
pub location: BlueprintLocation,
pub prefix: WeightedList<u8>,
#[serde(default)]
pub gateway: Option<BlueprintGateway>,
}
@ -324,14 +354,15 @@ fn validate_blueprint_ipv4(
blueprint_ipv4: &BlueprintIpv4,
context: &ValidateContext,
) -> Result<(), ValidationError> {
if let Some(allocation) = &blueprint_ipv4.allocation {
validate_allocation_exists(allocation, context)?;
}
if blueprint_ipv4.additional_prefix > 32 {
validate_blueprint_location(&blueprint_ipv4.location, context)?;
blueprint_ipv4.prefix.validate_once()?;
blueprint_ipv4.prefix.try_for_each(|x| {
if *x > 32 {
return Err(ValidationError::new("badprefix")
.with_message("ipv4 blueprint additional prefix too long".into()));
.with_message("ipv4 blueprint prefix too long".into()));
}
Ok(())
})?;
if let Some(gateway) = &blueprint_ipv4.gateway {
validate_blueprint_gateway(gateway, context)?;
@ -341,9 +372,9 @@ fn validate_blueprint_ipv4(
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct BlueprintIpv6 {
#[serde(default)]
pub allocation: Option<String>,
pub additional_prefix: u8,
#[serde(flatten)]
pub allocation: BlueprintLocation,
pub prefix: WeightedList<u8>,
#[serde(default)]
pub gateway: Option<BlueprintGateway>,
}
@ -352,14 +383,15 @@ fn validate_blueprint_ipv6(
blueprint_ipv6: &BlueprintIpv6,
context: &ValidateContext,
) -> Result<(), ValidationError> {
if let Some(allocation) = &blueprint_ipv6.allocation {
validate_allocation_exists(allocation, context)?;
}
if blueprint_ipv6.additional_prefix > 128 {
validate_blueprint_location(&blueprint_ipv6.allocation, context)?;
blueprint_ipv6.prefix.validate_once()?;
blueprint_ipv6.prefix.try_for_each(|x| {
if *x > 128 {
return Err(ValidationError::new("badprefix")
.with_message("ipv6 blueprint additional prefix too long".into()));
.with_message("ipv6 blueprint prefix too long".into()));
}
Ok(())
})?;
if let Some(gateway) = &blueprint_ipv6.gateway {
validate_blueprint_gateway(gateway, context)?;
@ -371,7 +403,8 @@ fn validate_blueprint_ipv6(
pub struct BlueprintGateway {
pub translation: WeightedList<Translation>,
pub upnp: Probability,
pub network: Option<String>,
#[serde(flatten)]
pub location: TemplateLocation,
}
fn validate_blueprint_gateway(
@ -379,9 +412,7 @@ fn validate_blueprint_gateway(
context: &ValidateContext,
) -> Result<(), ValidationError> {
gateway.translation.validate_once()?;
if let Some(network) = &gateway.network {
validate_network_exists(network, context)?;
}
validate_template_location(&gateway.location, context)?;
Ok(())
}
////////////////////////////////////////////////////////////////

16
veilid-tools/src/virtual_network/router_server/default_config.yml
View File

@ -124,22 +124,23 @@ networks:
# Blueprints are used to generate Networks for use with Machines
blueprints:
# A subnet of the internet directly attached with no translation
# * A subnet of the internet directly attached with no translation
# with both ipv4 and ipv6 networking
direct:
ipv4:
prefix: 24
ipv6:
prefix: 64
# An ipv4-only subnet of the internet directly attached with no translation
# * An ipv4-only subnet of the internet directly attached with no translation
direct_ipv4_no_ipv6:
ipv4:
prefix: 24
# An ipv6-only subnet of the internet directly attached with no translation
# * An ipv6-only subnet of the internet directly attached with no translation
direct_ipv6_no_ipv4:
ipv6:
prefix: 64
# An ipv4-only subnet of the internet attached via NAT
# * An ipv4-only subnet of the internet attached via NAT to an
# an ipv4-only subnet of the internet directly attached with no translation
nat_ipv4_no_ipv6:
ipv4:
allocation: "$private"
@ -147,8 +148,10 @@ blueprints:
gateway:
translation: "port_restricted"
upnp: 0.25
# An ipv4 subnet of the internet attached via NAT and
# an ipv6 subnet of the internet directly attached with no translation
blueprint: "direct_ipv4_no_ipv6"
# * An ipv4 subnet of the internet attached via NAT to an
# an ipv4-only subnet of the internet directly attached with no translation
# * An ipv6 subnet of the internet directly attached with no translation
nat_ipv4_direct_ipv6:
ipv4:
allocation: "$private"
@ -156,6 +159,7 @@ blueprints:
gateway:
translation: "port_restricted"
upnp: 0.25
blueprint: "direct_ipv4_no_ipv6"
ipv6:
prefix: 56

282
veilid-tools/src/virtual_network/router_server/machine_registry/address_pool.rs
View File

@ -1,38 +1,44 @@
use super::*;
use ipnet::*;
#[derive(Debug)]
pub struct AddressPool {
srng: StableRng,
#[derive(Debug, Clone)]
pub struct AddressPool<T: fmt::Debug + Clone> {
scope_v4: imbl::Vector<Ipv4Net>,
scope_v6: imbl::Vector<Ipv6Net>,
scope_v4: Vec<Ipv4Net>,
scope_v6: Vec<Ipv6Net>,
allocated_v4: imbl::Vector<Ipv4Net>,
allocated_v6: imbl::Vector<Ipv6Net>,
allocated_v4: Vec<Ipv4Net>,
allocated_v6: Vec<Ipv6Net>,
owner_tags_v4: imbl::HashMap<Ipv4Net, Option<T>>,
owner_tags_v6: imbl::HashMap<Ipv6Net, Option<T>>,
}
impl AddressPool {
pub fn new(srng: StableRng) -> Self {
impl<T: fmt::Debug + Clone> AddressPool<T> {
pub fn new() -> Self {
Self {
srng,
scope_v4: Vec::new(),
scope_v6: Vec::new(),
allocated_v4: Vec::new(),
allocated_v6: Vec::new(),
scope_v4: imbl::Vector::new(),
scope_v6: imbl::Vector::new(),
allocated_v4: imbl::Vector::new(),
allocated_v6: imbl::Vector::new(),
owner_tags_v4: imbl::HashMap::new(),
owner_tags_v6: imbl::HashMap::new(),
}
}
/////////////////////////////////////////////////////////////////////
pub fn add_scope_v4(&mut self, allocation: Ipv4Net) {
self.scope_v4.push(allocation);
self.scope_v4 = Ipv4Net::aggregate(&self.scope_v4);
let mut scopes = self.scope_v4.iter().copied().collect::<Vec<_>>();
scopes.push(allocation);
scopes = Ipv4Net::aggregate(&scopes);
self.scope_v4 = scopes.into();
}
pub fn add_scope_v6(&mut self, allocation: Ipv6Net) {
self.scope_v6.push(allocation);
self.scope_v6 = Ipv6Net::aggregate(&self.scope_v6);
let mut scopes = self.scope_v6.iter().copied().collect::<Vec<_>>();
scopes.push(allocation);
scopes = Ipv6Net::aggregate(&scopes);
self.scope_v6 = scopes.into();
}
pub fn is_in_scope_v4(&self, allocation: Ipv4Net) -> bool {
@ -53,30 +59,66 @@ impl AddressPool {
false
}
/////////////////////////////////////////////////////////////////////
pub fn can_allocate_v6(&self, prefix: u8) -> MachineRegistryResult<bool> {
if prefix > 128 {
return Err(MachineRegistryError::InvalidPrefix);
}
pub fn allocate_v4(&mut self, allocation: Ipv4Net) -> MachineRegistryResult<()> {
let mut srng = StableRng::new(0);
let opt_allocation = self.find_random_allocation_v6(&mut srng, prefix);
Ok(opt_allocation.is_some())
}
pub fn can_allocate_v4(&self, prefix: u8) -> MachineRegistryResult<bool> {
if prefix > 32 {
return Err(MachineRegistryError::InvalidPrefix);
}
let mut srng = StableRng::new(0);
let opt_allocation = self.find_random_allocation_v4(&mut srng, prefix);
Ok(opt_allocation.is_some())
}
pub fn reserve_allocation_v4(
&mut self,
allocation: Ipv4Net,
opt_tag: Option<T>,
) -> MachineRegistryResult<()> {
// Ensure the allocation is in our scope
if !self.is_in_scope_v4(allocation) {
return Err(MachineRegistryError::NoAllocation);
}
// Only reserve if it's not overlapping an allocation
if !self.get_overlaps_v4(allocation).is_empty() {
return Err(MachineRegistryError::NoAllocation);
}
// Add to our allocated pool
self.allocated_v4.push(allocation);
self.allocated_v4 = Ipv4Net::aggregate(&self.allocated_v4);
self.allocated_v4.insert_ord(allocation);
self.owner_tags_v4.insert(allocation, opt_tag);
Ok(())
}
pub fn allocate_v6(&mut self, allocation: Ipv6Net) -> MachineRegistryResult<()> {
pub fn reserve_allocation_v6(
&mut self,
allocation: Ipv6Net,
opt_tag: Option<T>,
) -> MachineRegistryResult<()> {
// Ensure the allocation is in our scope
if !self.is_in_scope_v6(allocation) {
return Err(MachineRegistryError::NoAllocation);
}
// Only reserve if it's not overlapping an allocation
if !self.get_overlaps_v6(allocation).is_empty() {
return Err(MachineRegistryError::NoAllocation);
}
// Add to our allocated pool
self.allocated_v6.push(allocation);
self.allocated_v6 = Ipv6Net::aggregate(&self.allocated_v6);
self.allocated_v6.insert_ord(allocation);
self.owner_tags_v6.insert(allocation, opt_tag);
Ok(())
}
@ -103,6 +145,166 @@ impl AddressPool {
overlaps
}
pub fn allocate_random_v4(
&mut self,
srng: &mut StableRng,
prefix: u8,
tag: T,
) -> MachineRegistryResult<Option<Ipv4Net>> {
if prefix > 32 {
return Err(MachineRegistryError::InvalidPrefix);
}
let opt_allocation = self.find_random_allocation_v4(srng, prefix);
// If we found a free subnet, add it to our allocations
if let Some(allocation) = opt_allocation {
// Add to our allocated pool
self.allocated_v4.insert_ord(allocation);
self.owner_tags_v4.insert(allocation, Some(tag));
return Ok(Some(allocation));
}
// No allocation
Ok(None)
}
pub fn allocate_random_v6(
&mut self,
srng: &mut StableRng,
prefix: u8,
tag: T,
) -> MachineRegistryResult<Option<Ipv6Net>> {
if prefix > 128 {
return Err(MachineRegistryError::InvalidPrefix);
}
let opt_allocation = self.find_random_allocation_v6(srng, prefix);
// If we found a free subnet, add it to our allocations
if let Some(allocation) = opt_allocation {
// Add to our allocated pool
self.allocated_v6.insert_ord(allocation);
self.owner_tags_v6.insert(allocation, Some(tag));
return Ok(Some(allocation));
}
// No allocation
Ok(None)
}
pub fn release_allocation_v4(
&mut self,
allocation: Ipv4Net,
) -> MachineRegistryResult<Option<T>> {
let Some(pos) = self.allocated_v4.iter().position(|x| *x == allocation) else {
return Err(MachineRegistryError::NoAllocation);
};
let Some(opt_tag) = self.owner_tags_v4.remove(&allocation) else {
return Err(MachineRegistryError::NoAllocation);
};
self.allocated_v4.remove(pos);
Ok(opt_tag)
}
pub fn release_allocation_v6(
&mut self,
allocation: Ipv6Net,
) -> MachineRegistryResult<Option<T>> {
let Some(pos) = self.allocated_v6.iter().position(|x| *x == allocation) else {
return Err(MachineRegistryError::NoAllocation);
};
let Some(opt_tag) = self.owner_tags_v6.remove(&allocation) else {
return Err(MachineRegistryError::NoAllocation);
};
self.allocated_v4.remove(pos);
Ok(opt_tag)
}
pub fn is_ipv4(&self) -> bool {
!self.scope_v4.is_empty()
}
pub fn is_ipv4_allocated(&self) -> bool {
self.is_ipv4() && !self.allocated_v4.is_empty()
}
pub fn is_ipv6(&self) -> bool {
!self.scope_v6.is_empty()
}
pub fn is_ipv6_allocated(&self) -> bool {
self.is_ipv6() && !self.allocated_v6.is_empty()
}
pub fn is_in_use<F: FnMut(IpNet, &T) -> bool>(&self, mut check: F) -> bool {
for (netv4, opt_tag) in self.owner_tags_v4.iter() {
if let Some(tag) = opt_tag.as_ref() {
if check(IpNet::V4(*netv4), tag) {
return true;
}
}
}
for (netv6, opt_tag) in self.owner_tags_v6.iter() {
if let Some(tag) = opt_tag.as_ref() {
if check(IpNet::V6(*netv6), tag) {
return true;
}
}
}
false
}
pub fn clear_ipv4<F: FnMut(Ipv4Net, &T) -> bool>(
&mut self,
mut check: F,
) -> MachineRegistryResult<()> {
if !self.is_ipv4() {
return Ok(());
}
if self.is_in_use(|n, t| match n {
IpNet::V4(ipv4_net) => check(ipv4_net, t),
IpNet::V6(_ipv6_net) => false,
}) {
return Err(MachineRegistryError::ResourceInUse);
}
assert!(self.owner_tags_v4.is_empty(), "tags should be empty");
self.scope_v4.clear();
self.allocated_v4.clear();
self.owner_tags_v4.clear();
Ok(())
}
pub fn clear_ipv6<F: FnMut(Ipv6Net, &T) -> bool>(
&mut self,
mut check: F,
) -> MachineRegistryResult<()> {
if !self.is_ipv6() {
return Ok(());
}
if self.is_in_use(|n, t| match n {
IpNet::V4(_ipv4_net) => false,
IpNet::V6(ipv6_net) => check(ipv6_net, t),
}) {
return Err(MachineRegistryError::ResourceInUse);
}
assert!(self.owner_tags_v6.is_empty(), "tags should be empty");
self.scope_v6.clear();
self.allocated_v6.clear();
self.owner_tags_v6.clear();
Ok(())
}
/////////////////////////////////////////////////////////////////////
fn range_in_prefix_32(scope_prefix: u8, iterable_prefix_bits: u8) -> u32 {
// If we're allocating addresses, exclude scope's network and broadcast address
if scope_prefix + iterable_prefix_bits == 32 {
@ -137,7 +339,7 @@ impl AddressPool {
}
}
pub fn allocate_random_v4(&mut self, prefix: u8) -> Option<Ipv4Net> {
fn find_random_allocation_v4(&self, srng: &mut StableRng, prefix: u8) -> Option<Ipv4Net> {
// Scope ranges to iterate
let mut scope_ranges = Vec::<(Ipv4Net, u8, u32)>::new();
let mut total_subnets = 0u32;
@ -164,7 +366,7 @@ impl AddressPool {
}
// Choose a random subnet to start with
let chosen_subnet_index = self.srng.next_u32(0, total_subnets - 1);
let chosen_subnet_index = srng.next_u32(0, total_subnets - 1);
// Find the starting scope and starting subnet index within
// the scope of the chosen subnet index
@ -237,19 +439,10 @@ impl AddressPool {
}
};
// If we found a free subnet, add it to our allocations
if let Some(allocation) = opt_allocation {
// Add to our allocated pool
self.allocated_v4.push(allocation);
self.allocated_v4 = Ipv4Net::aggregate(&self.allocated_v4);
return Some(allocation);
opt_allocation
}
// No allocation
None
}
pub fn allocate_random_v6(&mut self, prefix: u8) -> Option<Ipv6Net> {
fn find_random_allocation_v6(&self, srng: &mut StableRng, prefix: u8) -> Option<Ipv6Net> {
// Scope ranges to iterate
let mut scope_ranges = Vec::<(Ipv6Net, u8, u128)>::new();
let mut total_subnets = 0u128;
@ -277,7 +470,7 @@ impl AddressPool {
}
// Choose a random subnet to start with
let chosen_subnet_index = self.srng.next_u128(0, total_subnets - 1);
let chosen_subnet_index = srng.next_u128(0, total_subnets - 1);
// Find the starting scope and starting subnet index within
// the scope of the chosen subnet index
@ -350,15 +543,6 @@ impl AddressPool {
}
};
// If we found a free subnet, add it to our allocations
if let Some(allocation) = opt_allocation {
// Add to our allocated pool
self.allocated_v6.push(allocation);
self.allocated_v6 = Ipv6Net::aggregate(&self.allocated_v6);
return Some(allocation);
}
// No allocation
None
opt_allocation
}
}

65
veilid-tools/src/virtual_network/router_server/machine_registry/machine_registry_inner.rs
View File

@ -1,15 +1,15 @@
use super::*;
#[derive(Debug)]
#[derive(Debug, Clone)]
pub(super) struct MachineRegistryInner {
unlocked_inner: Arc<MachineRegistryUnlockedInner>,
allocated_machines: HashSet<MachineStateId>,
srng: StableRng,
allocated_machines: imbl::HashSet<MachineStateId>,
profile_state_allocator: StateAllocator<ProfileState>,
machine_state_allocator: StateAllocator<MachineState>,
template_state_allocator: StateAllocator<TemplateState>,
network_state_allocator: StateAllocator<NetworkState>,
blueprint_state_allocator: StateAllocator<BlueprintState>,
address_pool: AddressPool,
}
impl MachineRegistryInner {
@ -17,20 +17,21 @@ impl MachineRegistryInner {
/// Public Interface
pub fn new(unlocked_inner: Arc<MachineRegistryUnlockedInner>) -> Self {
let srng = unlocked_inner.srng.clone();
let srng = StableRng::new(unlocked_inner.config.seed.unwrap_or_default());
MachineRegistryInner {
unlocked_inner,
allocated_machines: HashSet::new(),
srng,
allocated_machines: imbl::HashSet::new(),
profile_state_allocator: StateAllocator::new(),
machine_state_allocator: StateAllocator::new(),
template_state_allocator: StateAllocator::new(),
network_state_allocator: StateAllocator::new(),
blueprint_state_allocator: StateAllocator::new(),
address_pool: AddressPool::new(srng),
}
}
pub fn srng(&self) -> StableRng {
self.unlocked_inner.srng.clone()
pub fn srng(&mut self) -> &mut StableRng {
&mut self.srng
}
pub fn config(&self) -> &config::Config {
&self.unlocked_inner.config
@ -55,7 +56,7 @@ impl MachineRegistryInner {
};
// Get current profile state, creating one if we have not yet started executing the profile
let profile_state = self
let profile_state_id = self
.profile_state_allocator
.get_or_create_by_name(profile, |id, name| {
ProfileState::new(id, name, profile_def.clone())
@ -63,52 +64,57 @@ impl MachineRegistryInner {
// Get the next instance from the definition
loop {
// Move to the next profile instance
let mut profile_state = self.profile_states().get_state(profile_state_id)?;
let Some(instance_def) = profile_state.next_instance() else {
return Err(MachineRegistryError::ProfileComplete);
};
self.profile_states_mut().set_state(profile_state);
let machine_state = match instance_def {
let machine_state_id = match instance_def {
config::Instance::Machine {
machine: machine_names,
} => {
// Filter out machines that are already allocated
let opt_machine_states = machine_names.try_filter_map(|name| {
let Some(machine_state) = self.machine_states().get_state_by_name(name)
let opt_machine_states_ids = machine_names.try_filter_map(|name| {
let Some(machine_state_id) =
self.machine_states().get_state_id_by_name(name)
else {
return Err(MachineRegistryError::MachineNotFound);
};
if self.allocated_machines.contains(&machine_state.id()) {
if self.allocated_machines.contains(&machine_state_id) {
Ok(None)
} else {
Ok(Some(machine_state))
Ok(Some(machine_state_id))
}
})?;
let Some(machine_states) = opt_machine_states else {
let Some(machine_state_ids) = opt_machine_states_ids else {
// All machines in this instance are allocated
continue;
};
// Choose a machine state to activate
let machine_state = self
.unlocked_inner
.srng
.weighted_choice(&machine_states)
.clone();
let machine_state_id = self.srng.weighted_choice(machine_state_ids);
// Activate it
self.allocated_machines.insert(machine_state.id());
self.allocated_machines.insert(machine_state_id);
machine_state
machine_state_id
}
config::Instance::Template {
template: template_names,
} => {
// Filter out templates that are no longer active
let opt_template_states = template_names.try_filter_map(|name| {
let Some(template_state) = self.template_states().get_state_by_name(name)
let Some(template_state_id) =
self.template_states().get_state_id_by_name(name)
else {
return Err(MachineRegistryError::TemplateNotFound);
};
let template_state = self
.template_states()
.get_state(template_state_id)
.expect("must exist");
if !template_state.is_active(self)? {
Ok(None)
} else {
@ -120,13 +126,20 @@ impl MachineRegistryInner {
continue;
};
let template_state = self.unlocked_inner.srng.weighted_choice(&template_states);
// Chose a template
let mut template_state = self.srng.weighted_choice(template_states);
template_state.generate(self)?
// Generate a machine from the template
let machine_state_id = template_state.generate(self)?;
// Save the updated template
self.template_states_mut().set_state(template_state);
machine_state_id
}
};
break Ok(machine_state.external_id());
break Ok(machine_state_id.0);
}
}

24
veilid-tools/src/virtual_network/router_server/machine_registry/mod.rs
View File

@ -14,13 +14,13 @@ struct Machine {}
#[derive(Debug)]
struct MachineRegistryUnlockedInner {
config: config::Config,
srng: StableRng,
}
#[derive(Debug, Clone)]
pub enum MachineRegistryError {
InvalidId,
InvalidName,
InvalidPrefix,
AlreadyAttached,
NotAttached,
DuplicateName,
@ -35,6 +35,7 @@ pub enum MachineRegistryError {
BlueprintNotFound,
ModelNotFound,
NoAllocation,
ResourceInUse,
}
pub type MachineRegistryResult<T> = Result<T, MachineRegistryError>;
@ -49,8 +50,7 @@ impl MachineRegistry {
///////////////////////////////////////////////////////////
/// Public Interface
pub fn new(config: config::Config) -> Self {
let srng = StableRng::new(config.seed.unwrap_or_default());
let unlocked_inner = Arc::new(MachineRegistryUnlockedInner { srng, config });
let unlocked_inner = Arc::new(MachineRegistryUnlockedInner { config });
Self {
inner: Arc::new(Mutex::new(MachineRegistryInner::new(
unlocked_inner.clone(),
@ -61,11 +61,25 @@ impl MachineRegistry {
pub fn allocate(&self, profile: String) -> MachineRegistryResult<MachineId> {
let mut inner = self.inner.lock();
inner.allocate(profile)
let saved_state = (*inner).clone();
match inner.allocate(profile) {
Ok(v) => Ok(v),
Err(e) => {
*inner = saved_state;
Err(e)
}
}
}
pub fn release(&self, machine_id: MachineId) -> MachineRegistryResult<()> {
let mut inner = self.inner.lock();
inner.release(machine_id)
let saved_state = (*inner).clone();
match inner.release(machine_id) {
Ok(v) => Ok(v),
Err(e) => {
*inner = saved_state;
Err(e)
}
}
}
}

195
veilid-tools/src/virtual_network/router_server/machine_registry/state/blueprint_state.rs
View File

@ -1,23 +1,26 @@
use super::*;
use ipnet::*;
#[derive(Debug)]
struct BlueprintStateUnlockedInner {
/// The global random number generator
srng: StableRng,
/// The unique id of this blueprint
id: BlueprintStateId,
/// The name of this blueprint state
name: String,
}
#[derive(Debug)]
pub struct BlueprintStateIpv4Params {
pub allocation: Option<String>,
pub prefix: u8,
pub locations: NetworkLocationsList,
pub prefix: WeightedList<u8>,
pub gateway: Option<BlueprintStateGatewayParams>,
}
#[derive(Debug)]
pub struct BlueprintStateIpv6Params {
pub allocation: Option<String>,
pub prefix: u8,
pub locations: NetworkLocationsList,
pub prefix: WeightedList<u8>,
pub gateway: Option<BlueprintStateGatewayParams>,
}
@ -25,7 +28,7 @@ pub struct BlueprintStateIpv6Params {
pub struct BlueprintStateGatewayParams {
pub translation: WeightedList<config::Translation>,
pub upnp: Probability,
pub network: Option<NetworkStateId>,
pub locations: Option<MachineLocationsList>,
}
#[derive(Debug)]
@ -68,9 +71,13 @@ pub struct BlueprintState {
pub type BlueprintStateId = StateId<BlueprintState>;
impl BlueprintState {
pub fn new(id: BlueprintStateId, name: String) -> MachineRegistryResult<BlueprintState> {
pub fn new(
srng: StableRng,
id: BlueprintStateId,
name: String,
) -> MachineRegistryResult<BlueprintState> {
Ok(Self {
unlocked_inner: Arc::new(BlueprintStateUnlockedInner { id, name }),
unlocked_inner: Arc::new(BlueprintStateUnlockedInner { srng, id, name }),
inner: Arc::new(Mutex::new(BlueprintStateInner {
limit_network_count: None,
networks: Vec::new(),
@ -163,6 +170,8 @@ impl BlueprintState {
}
}
todo!("needs better implementation");
Ok(true)
}
@ -174,7 +183,7 @@ impl BlueprintState {
let model_name = match inner.model.clone() {
Some(models) => machine_registry_inner
.srng()
.weighted_choice(&models)
.weighted_choice_ref(&models)
.clone(),
None => machine_registry_inner.config().default_model.clone(),
};
@ -187,7 +196,7 @@ impl BlueprintState {
distance: model.distance.clone(),
loss: model.loss,
};
network_state.set_model(params);
network_state.with_model(params);
Ok(())
}
@ -201,43 +210,153 @@ impl BlueprintState {
return Ok(());
};
let allocation = ipv4
// Get maximum prefix
let max_prefix = ipv4
.params
.allocation
.clone()
.map(|x| {
.prefix
.iter()
.max()
.copied()
.expect("must have at least one element");
// Get addresses for network
let (subnet, super_net) = match &ipv4.params.locations {
NetworkLocationsList::Allocations { allocations } => {
// Get allocations which have subnets that would fit
// our maximum requested prefix
let Some(alloc_subnets) = allocations.try_filter_map(|allocation_name| {
let allocation = machine_registry_inner
.config()
.allocations
.get(&x)
.ok_or(MachineRegistryError::InvalidName)?;
if let Some(subnet4) = &allocation.subnets.subnet4 {
let ipv4net = machine_registry_inner
.srng()
.weighted_choice(subnet4)
.clone();
Ok(Some(ipv4net))
} else {
Ok(None)
}
})
.unwrap_or_else(|| {
Ok(Some(
Ipv4Net::new(Ipv4Addr::UNSPECIFIED, 0).expect("must be valid"),
))
})?;
let Some(allocation) = allocation else {
return Ok(());
.get(allocation_name)
.expect("must exist");
Ok(allocation
.subnets
.subnet4
.as_ref()
.map(|subnet| subnet.filter(|p| p.prefix_len() <= max_prefix))
.flatten())
})?
else {
return Err(MachineRegistryError::NoAllocation);
};
// Do suballocation
xxx figure out how to do allocation inside internet vs private network
// Pick an allocation
let subnets = machine_registry_inner
.srng()
.weighted_choice_ref(&alloc_subnets);
let params = NetworkStateIpv4Params { allocation };
// Pick a subnet
let net = *machine_registry_inner.srng().weighted_choice_ref(subnets);
let gateway_params = inner.
// Pick a prefix length that would fit in the subnet
let opt_subnet = ipv4
.params
.prefix
.filter(|p| *p >= net.prefix_len())
.as_ref()
.map(|wl| {
let subnet_prefix =
machine_registry_inner.srng().weighted_choice_ref(wl).clone();
network_state.set_ipv4(, gateway_params);
// Use an address pool temporarily to pick a subnet
let mut address_pool =
AddressPool::<()>::new();
address_pool.add_scope_v4(net);
address_pool.allocate_random_v4(machine_registry_inner.srng(), subnet_prefix, ())
})
.transpose()?
.flatten();
let Some(subnet) = opt_subnet else {
return Err(MachineRegistryError::NoAllocation);
};
(subnet, None)
}
NetworkLocationsList::Networks { networks } => {
// Get networks which have subnets that would fit
// our maximum requested prefix
let Some(available_networks) = networks.try_filter(|network_id| {
let network_state = machine_registry_inner
.network_states()
.get_state(*network_id)
.expect("must exist");
Ok(network_state.can_allocate_subnet_v4(None, max_prefix))
})?
else {
return Err(MachineRegistryError::NoAllocation);
};
// Pick a network
let network_id = *machine_registry_inner
.srng()
.weighted_choice_ref(&available_networks);
let network_state = machine_registry_inner
.network_states()
.get_state(network_id)
.expect("must exist");
// Pick a prefix that fits in this network and allocate from it
let opt_subnet = ipv4
.params
.prefix
.filter(|p| network_state.can_allocate_subnet_v4(None, *p))
.as_ref()
.map(|wl| {
let subnet_prefix =
machine_registry_inner.srng().weighted_choice_ref(wl).clone();
// Allocate subnet from this network
network_state.allocate_subnet_v4(
machine_registry_inner,
OwnerTag::Network(network_state.id()),
None,
subnet_prefix,
)
})
.transpose()?;
let Some(subnet) = opt_subnet else {
return Err(MachineRegistryError::NoAllocation);
};
(subnet, Some(network_id))
}
};
let params = NetworkStateIpv4Params {
allocation: subnet,
super_net,
};
let gateway_params = match ipv4.gateway.as_ref() {
Some(v4gw) => {
let translation = machine_registry_inner
.srng()
.weighted_choice_ref(&v4gw.params.translation)
.clone();
let upnp = machine_registry_inner
.srng()
.probability_test(v4gw.params.upnp);
let location = match v4gw.params.locations {
Some(locations) => todo!(),
None => todo!(),
};
xxx instantiate and clean up on failure
Some(NetworkStateIpv4GatewayParams {
translation,
upnp,
external_network: todo!(),
internal_address: None,
external_address: None,
})
}
None => None,
};
network_state.set_ipv4(machine_registry_inner, params, gateway_params);
Ok(())
}

12
veilid-tools/src/virtual_network/router_server/machine_registry/state/machine_locations_list.rs Normal file
View File

@ -0,0 +1,12 @@
use super::*;
/// Locations where a machine can be instantiated
#[derive(Debug)]
pub enum MachineLocationsList {
Networks {
networks: WeightedList<NetworkStateId>,
},
Blueprints {
blueprints: WeightedList<BlueprintStateId>,
},
}

19
veilid-tools/src/virtual_network/router_server/machine_registry/state/machine_state.rs
View File

@ -30,6 +30,7 @@ struct MachineStateUnlockedInner {
#[derive(Debug, Clone)]
pub struct MachineState {
xxx convert to immutable state
unlocked_inner: Arc<MachineStateUnlockedInner>,
inner: Arc<Mutex<MachineStateInner>>,
}
@ -151,8 +152,11 @@ impl MachineState {
// Allocate interface address
let is_dynamic = opt_address.is_none();
let ifv4_addr =
network_state.allocate_address_v4(machine_registry_inner, self.id(), opt_address)?;
let ifv4_addr = network_state.allocate_address_v4(
machine_registry_inner,
OwnerTag::Machine(self.id()),
opt_address,
)?;
// Get address flags
let flags = opt_address_flags.unwrap_or_else(|| AddressFlags {
@ -191,8 +195,11 @@ impl MachineState {
// Allocate interface address
let is_dynamic = opt_address.is_none();
let ifv6_addr =
network_state.allocate_address_v6(machine_registry_inner, self.id(), opt_address)?;
let ifv6_addr = network_state.allocate_address_v6(
machine_registry_inner,
OwnerTag::Machine(self.id()),
opt_address,
)?;
// Get address flags
let flags = opt_address_flags.unwrap_or_else(|| AddressFlags {
@ -274,7 +281,7 @@ impl MachineState {
match address {
IpAddr::V4(ipv4_addr) => network_state.release_address_v4(ipv4_addr)?,
IpAddr::V6(ipv6_addr) => network_state.release_address_v6(ipv6_addr)?,
}
};
// Remove the address from the interface
intf.network_interface
@ -329,7 +336,7 @@ impl MachineState {
match addr.if_addr.ip() {
IpAddr::V4(ipv4_addr) => network_state.release_address_v4(ipv4_addr)?,
IpAddr::V6(ipv6_addr) => network_state.release_address_v6(ipv6_addr)?,
}
};
}
// Remove the addresses from the interface

6
veilid-tools/src/virtual_network/router_server/machine_registry/state/mod.rs
View File

@ -1,16 +1,18 @@
mod blueprint_state;
mod machine_locations_list;
mod machine_state;
mod network_locations_list;
mod network_state;
mod profile_state;
mod state_allocator;
mod template_state;
use std::marker::PhantomData;
use super::*;
pub use blueprint_state::*;
pub use machine_locations_list::*;
pub use machine_state::*;
pub use network_locations_list::*;
pub use network_state::*;
pub use profile_state::*;
pub use state_allocator::*;

12
veilid-tools/src/virtual_network/router_server/machine_registry/state/network_locations_list.rs Normal file
View File

@ -0,0 +1,12 @@
use super::*;
/// Locations where a network can be instantiated
#[derive(Debug)]
pub enum NetworkLocationsList {
/// Network will be a new allocation
Allocations { allocations: WeightedList<String> },
/// Network will be allocated as a subnet of an existing network
Networks {
networks: WeightedList<NetworkStateId>,
},
}

815
veilid-tools/src/virtual_network/router_server/machine_registry/state/network_state.rs
View File

File diff suppressed because it is too large Load Diff

31
veilid-tools/src/virtual_network/router_server/machine_registry/state/profile_state.rs
View File

@ -1,12 +1,12 @@
use super::*;
#[derive(Debug)]
struct ProfileStateInner {
struct ProfileStateFields {
next_instance_index: usize,
}
#[derive(Debug)]
struct ProfileStateUnlockedInner {
struct ProfileStateImmutable {
id: ProfileStateId,
name: String,
def: config::Profile,
@ -14,8 +14,8 @@ struct ProfileStateUnlockedInner {
#[derive(Debug, Clone)]
pub struct ProfileState {
unlocked_inner: Arc<ProfileStateUnlockedInner>,
inner: Arc<Mutex<ProfileStateInner>>,
immutable: Arc<ProfileStateImmutable>,
fields: Arc<ProfileStateFields>,
}
pub type ProfileStateId = StateId<ProfileState>;
@ -23,33 +23,34 @@ pub type ProfileStateId = StateId<ProfileState>;
impl ProfileState {
pub fn new(id: ProfileStateId, name: String, def: config::Profile) -> Self {
Self {
unlocked_inner: Arc::new(ProfileStateUnlockedInner { id, name, def }),
inner: Arc::new(Mutex::new(ProfileStateInner {
immutable: Arc::new(ProfileStateImmutable { id, name, def }),
fields: Arc::new(ProfileStateFields {
next_instance_index: 0,
})),
}),
}
}
pub fn next_instance(&self) -> Option<config::Instance> {
pub fn next_instance(&mut self) -> Option<config::Instance> {
let instance_index = {
let mut inner = self.inner.lock();
let instance_index = inner.next_instance_index;
if instance_index >= self.unlocked_inner.def.instances.len() {
let instance_index = self.fields.next_instance_index;
if instance_index >= self.immutable.def.instances.len() {
return None;
}
inner.next_instance_index += 1;
self.fields = Arc::new(ProfileStateFields {
next_instance_index: instance_index + 1,
});
instance_index
};
Some(self.unlocked_inner.def.instances[instance_index].clone())
Some(self.immutable.def.instances[instance_index].clone())
}
}
impl State for ProfileState {
fn id(&self) -> StateId<Self> {
self.unlocked_inner.id.clone()
self.immutable.id.clone()
}
fn name(&self) -> Option<String> {
Some(self.unlocked_inner.name.clone())
Some(self.immutable.name.clone())
}
}

87
veilid-tools/src/virtual_network/router_server/machine_registry/state/state_allocator.rs
View File

@ -1,4 +1,5 @@
use super::*;
use std::marker::PhantomData;
pub trait State: fmt::Debug + Clone {
fn id(&self) -> StateId<Self>;
@ -38,21 +39,21 @@ impl<S: State> core::hash::Hash for StateId<S> {
}
}
#[derive(Debug)]
#[derive(Debug, Clone)]
pub struct StateAllocator<S: State> {
state_id_by_name: HashMap<String, StateIdInternal>,
state_by_id: HashMap<StateIdInternal, Option<S>>,
state_id_by_name: imbl::HashMap<Arc<String>, StateIdInternal>,
state_by_id: imbl::HashMap<StateIdInternal, Option<S>>,
next_state_id: StateIdInternal,
free_state_ids: Vec<StateIdInternal>,
free_state_ids: imbl::Vector<StateIdInternal>,
}
impl<S: State> StateAllocator<S> {
pub fn new() -> Self {
Self {
state_id_by_name: HashMap::new(),
state_by_id: HashMap::new(),
state_id_by_name: imbl::HashMap::new(),
state_by_id: imbl::HashMap::new(),
next_state_id: 0,
free_state_ids: Vec::new(),
free_state_ids: imbl::Vector::new(),
}
}
@ -60,20 +61,19 @@ impl<S: State> StateAllocator<S> {
&mut self,
name: String,
create: F,
) -> S {
if let Some(v) = self.get_state_by_name(&name) {
return v.clone();
) -> StateId<S> {
if let Some(id) = self.get_state_id_by_name(&name) {
return id;
}
let id = self.allocate_id();
let state = create(id, name);
self.attach_state(state.clone())
.expect("should always attach");
state
self.attach_state(state).expect("should always attach");
id
}
pub fn allocate_id(&mut self) -> StateId<S> {
// Allocate new internal id
let state_id = self.free_state_ids.pop().unwrap_or_else(|| {
let state_id = self.free_state_ids.pop_back().unwrap_or_else(|| {
let x = self.next_state_id;
self.next_state_id += 1;
x
@ -103,7 +103,7 @@ impl<S: State> StateAllocator<S> {
}
// Keep old id in the free list
self.free_state_ids.push(id.0);
self.free_state_ids.push_back(id.0);
Ok(())
}
@ -129,7 +129,7 @@ impl<S: State> StateAllocator<S> {
}
// Register the named state
self.state_id_by_name
.insert(name, id.0)
.insert(Arc::new(name), id.0)
.expect("should not have a duplicated name here");
}
@ -164,32 +164,59 @@ impl<S: State> StateAllocator<S> {
pub fn get_state(&self, id: StateId<S>) -> MachineRegistryResult<S> {
// Get the allocator slot
let Some(opt_state) = self.state_by_id.get(&id.0).cloned() else {
let Some(opt_state) = self.state_by_id.get(&id.0) else {
return Err(MachineRegistryError::InvalidId);
};
let Some(state) = opt_state else {
return Err(MachineRegistryError::NotAttached);
};
Ok(state)
Ok(state.clone())
}
pub fn get_state_by_name(&self, name: &String) -> Option<S> {
pub fn set_state(&mut self, state: S) {
self.state_by_id.insert(state.id().0, Some(state));
}
// pub fn update_state<
// R,
// F: FnOnce(&mut StateAllocator<S>, S) -> MachineRegistryResult<(R, Option<S>)>,
// >(
// &mut self,
// id: StateId<S>,
// callback: F,
// ) -> MachineRegistryResult<R> {
// // Get state to update
// let state = {
// // Get the allocator slot
// let Some(opt_state) = self.state_by_id.get(&id.0) else {
// return Err(MachineRegistryError::InvalidId);
// };
// let Some(state) = opt_state else {
// return Err(MachineRegistryError::NotAttached);
// };
// // Make copy of state to update
// state.clone()
// };
// // Call the callback
// let id = state.id();
// let (res, opt_new_state) = callback(self, state)?;
// if let Some(new_state) = opt_new_state {
// assert_eq!(id, new_state.id(), "state id must not change");
// self.state_by_id.insert(id.0, Some(new_state));
// }
// Ok(res)
// }
pub fn get_state_id_by_name(&self, name: &String) -> Option<StateId<S>> {
// Get the id associated with this name
let Some(id) = self.state_id_by_name.get(name) else {
return None;
};
// Get the allocator slot
let opt_state = self
.state_by_id
.get(&id)
.cloned()
.expect("id should always be valid");
// The state should be attached otherwise we screwed up
let state = opt_state.expect("named states should always be attached");
Some(state)
Some(StateId::new(*id))
}
}

36
veilid-tools/src/virtual_network/router_server/machine_registry/state/template_state.rs
View File

@ -12,16 +12,6 @@ struct PerNetworkInfo {
machines: HashSet<MachineStateId>,
}
#[derive(Debug)]
enum LocationsList {
Networks {
networks: WeightedList<NetworkStateId>,
},
Blueprints {
blueprints: WeightedList<BlueprintStateId>,
},
}
#[derive(Debug, Clone)]
enum BlueprintAvailability {
Existing(NetworkState),
@ -32,7 +22,7 @@ enum BlueprintAvailability {
struct TemplateStateInner {
limit_machine_count: Option<usize>,
limit_machines_per_network: Option<WeightedList<usize>>,
locations_list: Option<LocationsList>,
locations_list: Option<MachineLocationsList>,
machines: HashSet<MachineStateId>,
machines_per_network: HashMap<NetworkStateId, PerNetworkInfo>,
disable_capabilities: Vec<String>,
@ -68,12 +58,12 @@ impl TemplateState {
pub fn set_networks_list(&self, networks: WeightedList<NetworkStateId>) {
let mut inner = self.inner.lock();
inner.locations_list = Some(LocationsList::Networks { networks })
inner.locations_list = Some(MachineLocationsList::Networks { networks })
}
pub fn set_blueprints_list(&self, blueprints: WeightedList<BlueprintStateId>) {
let mut inner = self.inner.lock();
inner.locations_list = Some(LocationsList::Blueprints { blueprints })
inner.locations_list = Some(MachineLocationsList::Blueprints { blueprints })
}
pub fn clear_locations_list(&self) {
@ -153,7 +143,7 @@ impl TemplateState {
pub fn is_active(
&self,
machine_registry_inner: &mut MachineRegistryInner,
machine_registry_inner: &MachineRegistryInner,
) -> MachineRegistryResult<bool> {
let inner = self.inner.lock();
@ -169,7 +159,7 @@ impl TemplateState {
};
match locations_list {
LocationsList::Networks { networks } => {
MachineLocationsList::Networks { networks } => {
// Filter the weighted list of networks to those that are still active and or not yet started
if networks
.try_filter(|id| {
@ -182,7 +172,7 @@ impl TemplateState {
return Ok(false);
};
}
LocationsList::Blueprints { blueprints } => {
MachineLocationsList::Blueprints { blueprints } => {
// Filter the weighted list of blueprints to those that are still active or not yet started and can allocate
if blueprints
.try_filter(|id| {
@ -207,9 +197,9 @@ impl TemplateState {
}
pub fn generate(
&self,
&mut self,
machine_registry_inner: &mut MachineRegistryInner,
) -> MachineRegistryResult<MachineState> {
) -> MachineRegistryResult<MachineStateId> {
let mut inner = self.inner.lock();
// See if we have reached our machine limit
@ -226,7 +216,7 @@ impl TemplateState {
// Get a network to generate the machine on
let network_state = match locations_list {
LocationsList::Networks { networks } => {
MachineLocationsList::Networks { networks } => {
// Filter the weighted list of networks to those that are still active and or not yet started
let Some(available_networks) = networks.try_filter_map(|id| {
let network_state = machine_registry_inner.network_states().get_state(*id)?;
@ -243,12 +233,12 @@ impl TemplateState {
// Weighted choice of network now that we have a candidate list
let network_state = machine_registry_inner
.srng()
.weighted_choice(&available_networks);
.weighted_choice_ref(&available_networks);
// Return network state to use
network_state.clone()
}
LocationsList::Blueprints { blueprints } => {
MachineLocationsList::Blueprints { blueprints } => {
// Filter the weighted list of blueprints to those that are still active or not yet started and can allocate
let Some(available_blueprints) = blueprints.try_filter_map(|id| {
let blueprint_state =
@ -267,7 +257,7 @@ impl TemplateState {
// Weighted choice of blueprint now that we have a candidate list
match machine_registry_inner
.srng()
.weighted_choice(&available_blueprints)
.weighted_choice_ref(&available_blueprints)
{
BlueprintAvailability::Existing(network_state) => network_state.clone(),
BlueprintAvailability::Generate(blueprint_state) => {
@ -320,7 +310,7 @@ impl TemplateState {
.entry(network_state.id())
.or_insert_with(|| {
let limit_machine_count = limit_machines_per_network
.map(|wl| machine_registry_inner.srng().weighted_choice(&wl).clone());
.map(|wl| machine_registry_inner.srng().weighted_choice_ref(&wl).clone());
PerNetworkInfo {
limit_machine_count,
machines: HashSet::new(),

88
veilid-tools/src/virtual_network/router_server/stable_rng.rs
View File

@ -3,12 +3,13 @@ use super::*;
use rand::{seq::SliceRandom, Rng, SeedableRng};
use rand_chacha::ChaCha20Rng;
struct StableRngInner {
#[derive(Clone)]
pub struct StableRngState {
srng: ChaCha20Rng,
count: usize,
}
impl fmt::Debug for StableRngInner {
impl fmt::Debug for StableRngState {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("StableRngInner")
.field("count", &self.count)
@ -18,7 +19,7 @@ impl fmt::Debug for StableRngInner {
#[derive(Clone, Debug)]
pub struct StableRng {
inner: Arc<Mutex<StableRngInner>>,
state: StableRngState,
}
impl StableRng {
@ -27,14 +28,33 @@ impl StableRng {
pub fn new(seed: u64) -> Self {
Self {
inner: Arc::new(Mutex::new(StableRngInner {
state: StableRngState {
srng: ChaCha20Rng::seed_from_u64(seed),
count: 0,
})),
},
}
}
pub fn weighted_choice<'a, T: fmt::Debug + Clone>(
&self,
pub fn save_state(&self) -> StableRngState {
self.state.clone()
}
pub fn restore_state(&mut self, state: StableRngState) {
self.state = state;
}
pub fn probability_test(&mut self, probability: Probability) -> bool {
if probability == 1.0 {
return true;
} else if probability == 0.0 {
return false;
}
let num = self.next_f32(0.0, 1.0);
num < probability
}
pub fn weighted_choice_ref<'a, T: fmt::Debug + Clone>(
&mut self,
weighted_list: &'a WeightedList<T>,
) -> &'a T {
match weighted_list {
@ -59,27 +79,49 @@ impl StableRng {
}
}
}
pub fn shuffle_vec<T>(&self, v: &mut Vec<T>) {
let mut inner = self.inner.lock();
inner.count += 1;
v.shuffle(&mut inner.srng);
pub fn weighted_choice<T: fmt::Debug + Clone>(&mut self, weighted_list: WeightedList<T>) -> T {
match weighted_list {
WeightedList::Single(x) => x,
WeightedList::List(mut vec) => {
let total_weight = vec
.iter()
.map(|x| x.weight())
.reduce(|acc, x| acc + x)
.expect("config validation broken");
let r = self.next_f32(0.0, total_weight);
let mut current_weight = 0.0f32;
let last = vec.pop().expect("config validation broken").into_item();
for x in vec {
current_weight += x.weight();
if r < current_weight {
return x.into_item();
}
}
// Catch f32 imprecision
last
}
}
}
pub fn next_u32(&self, min: u32, max: u32) -> u32 {
let mut inner = self.inner.lock();
inner.count += 1;
inner.srng.gen_range(min..=max)
pub fn shuffle_vec<T>(&mut self, v: &mut Vec<T>) {
self.state.count += 1;
v.shuffle(&mut self.state.srng);
}
pub fn next_u128(&self, min: u128, max: u128) -> u128 {
let mut inner = self.inner.lock();
inner.count += 1;
inner.srng.gen_range(min..=max)
pub fn next_u32(&mut self, min: u32, max: u32) -> u32 {
self.state.count += 1;
self.state.srng.gen_range(min..=max)
}
pub fn next_f32(&self, min: f32, max: f32) -> f32 {
let mut inner = self.inner.lock();
inner.count += 1;
inner.srng.gen_range(min..=max)
pub fn next_u128(&mut self, min: u128, max: u128) -> u128 {
self.state.count += 1;
self.state.srng.gen_range(min..=max)
}
pub fn next_f32(&mut self, min: f32, max: f32) -> f32 {
self.state.count += 1;
self.state.srng.gen_range(min..=max)
}
}

118
veilid-tools/src/virtual_network/router_server/weighted_list.rs
View File

@ -4,6 +4,9 @@ use validator::{Validate, ValidationError, ValidationErrors};
pub type Probability = f32;
//////////////////////////////////////////////////////////////////////////
/// WeightedList
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(untagged)]
pub enum WeightedList<T: fmt::Debug + Clone> {
@ -15,32 +18,18 @@ impl<T: fmt::Debug + Clone> Default for WeightedList<T> {
Self::List(Vec::new())
}
}
impl<T: fmt::Debug + Clone> Validate for WeightedList<T> {
fn validate(&self) -> Result<(), ValidationErrors> {
let mut errors = ValidationErrors::new();
match self {
Self::List(v) => {
if v.is_empty() {
errors.add(
"List",
ValidationError::new("len")
.with_message("weighted list must not be empty".into()),
)
}
errors.merge_self("List", v.validate());
}
Self::Single(_addr) => {}
}
if errors.is_empty() {
Ok(())
} else {
Err(errors)
}
}
}
impl<T: fmt::Debug + Clone> WeightedList<T> {
pub fn len(&self) -> usize {
match self {
WeightedList::Single(_) => 1,
WeightedList::List(vec) => vec.len(),
}
}
pub fn is_empty(&self) -> bool {
self.len() == 0
}
pub fn validate_once(&self) -> Result<(), ValidationError> {
match self {
Self::List(v) => {
@ -153,7 +142,80 @@ impl<T: fmt::Debug + Clone> WeightedList<T> {
}
}
}
pub fn iter(&self) -> WeightedListIter<'_, T> {
WeightedListIter {
values: self,
index: 0,
}
}
}
//////////////////////////////////////////////////////////////////////////
/// Index
impl<T: fmt::Debug + Clone> core::ops::Index<usize> for WeightedList<T> {
type Output = T;
fn index(&self, index: usize) -> &Self::Output {
match self {
WeightedList::Single(s) => &s,
WeightedList::List(vec) => vec[index].item(),
}
}
}
//////////////////////////////////////////////////////////////////////////
/// Iterator
pub struct WeightedListIter<'a, T: fmt::Debug + Clone> {
values: &'a WeightedList<T>,
index: usize,
}
impl<'a, T: fmt::Debug + Clone> Iterator for WeightedListIter<'a, T> {
type Item = &'a T;
fn next(&mut self) -> Option<Self::Item> {
if self.index >= self.values.len() {
return None;
}
self.index += 1;
Some(&self.values[self.index - 1])
}
}
//////////////////////////////////////////////////////////////////////////
/// Validate
impl<T: fmt::Debug + Clone> Validate for WeightedList<T> {
fn validate(&self) -> Result<(), ValidationErrors> {
let mut errors = ValidationErrors::new();
match self {
Self::List(v) => {
if v.is_empty() {
errors.add(
"List",
ValidationError::new("len")
.with_message("weighted list must not be empty".into()),
)
}
errors.merge_self("List", v.validate());
}
Self::Single(_addr) => {}
}
if errors.is_empty() {
Ok(())
} else {
Err(errors)
}
}
}
//////////////////////////////////////////////////////////////////////////
/// Weighted
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(untagged)]
@ -190,6 +252,12 @@ impl<T: fmt::Debug + Clone> Weighted<T> {
Weighted::Unweighted(item) => item,
}
}
pub fn into_item(self) -> T {
match self {
Weighted::Weighted { item, weight: _ } => item,
Weighted::Unweighted(item) => item,
}
}
pub fn weight(&self) -> f32 {
match self {
Weighted::Weighted { item: _, weight } => *weight,