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Document (and allow) behavior for weird values of subnet masks. 

Chutney needs this, to avoid putting every relay in the same family.
This commit is contained in:
Nick Mathewson 2021-11-18 14:39:48 -05:00
parent 934412586e
commit 0c2048de60
1 changed files with 10 additions and 2 deletions
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12
crates/tor-netdir/src/lib.rs
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@ -92,8 +92,16 @@ use params::NetParameters;
#[serde(deny_unknown_fields)]
pub struct SubnetConfig {
/// Consider IPv4 nodes in the same /x to be the same family.
///
/// If this value is 0, all nodes with IPv4 addresses will be in the
/// same family. If this value is above 32, then no nodes will be
/// placed im the same family based on their IPv4 addresses.
subnets_family_v4: u8,
/// Consider IPv6 nodes in the same /x to be the same family.
///
/// If this value is 0, all nodes with IPv6 addresses will be in the
/// same family. If this value is above 128, then no nodes will be
/// placed im the same family based on their IPv6 addresses.
subnets_family_v6: u8,
}
@ -110,8 +118,8 @@ impl SubnetConfig {
/// out-of-bounds.
pub fn new(subnets_family_v4: u8, subnets_family_v6: u8) -> Self {
Self {
subnets_family_v4: subnets_family_v4.clamp(0, 32),
subnets_family_v6: subnets_family_v6.clamp(0, 128),
subnets_family_v4,
subnets_family_v6,
}
}