ic-backup 0.57.0

Host-side snapshot backup and same-release recovery for Internet Computer canisters
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

//! Ordered passive restore-fence matching; callers retain purpose-specific denials.

use crate::model::{
    consistency::ApplicationFenceState,
    restore_safety::{RestoreFenceBindingRecord, RestoreFenceEvidence},
};

pub(super) enum RestoreFenceMismatch {
    Identity,
    MembershipRevision,
    ExternalObligationsRevision,
    Inactive,
}

pub(super) fn validate(
    original: &RestoreFenceBindingRecord,
    observed: &RestoreFenceEvidence,
) -> Result<(), RestoreFenceMismatch> {
    if observed.binding.identity != original.identity {
        return Err(RestoreFenceMismatch::Identity);
    }
    if observed.binding.membership_revision != original.membership_revision {
        return Err(RestoreFenceMismatch::MembershipRevision);
    }
    if observed.binding.external_obligations_revision != original.external_obligations_revision {
        return Err(RestoreFenceMismatch::ExternalObligationsRevision);
    }
    if observed.state != ApplicationFenceState::Active {
        return Err(RestoreFenceMismatch::Inactive);
    }
    Ok(())
}