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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160

// SPDX-License-Identifier: Apache-2.0

use serde::{Deserialize, Serialize};

use crate::{
    BaseInterface, ErrorKind, Interface, InterfaceType, MergedInterface,
    NmstateError,
};

#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
#[non_exhaustive]
/// Linux kernel Virtual Routing and Forwarding(VRF) interface. The example
/// yaml output of a [crate::NetworkState] with a VRF interface would be:
/// ```yml
/// interfaces:
/// - name: vrf0
///   type: vrf
///   state: up
///   mac-address: 42:6C:4A:0B:A3:C0
///   mtu: 65575
///   min-mtu: 1280
///   max-mtu: 65575
///   wait-ip: any
///   ipv4:
///     enabled: false
///   ipv6:
///     enabled: false
///   accept-all-mac-addresses: false
///   vrf:
///     port:
///     - eth1
///     - eth2
///     route-table-id: 100
/// ```
pub struct VrfInterface {
    #[serde(flatten)]
    pub base: BaseInterface,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub vrf: Option<VrfConfig>,
}

impl Default for VrfInterface {
    fn default() -> Self {
        Self {
            base: BaseInterface {
                iface_type: InterfaceType::Vrf,
                ..Default::default()
            },
            vrf: None,
        }
    }
}

impl VrfInterface {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn ports(&self) -> Option<Vec<&str>> {
        self.vrf
            .as_ref()
            .and_then(|vrf_conf| vrf_conf.port.as_ref())
            .map(|ports| ports.as_slice().iter().map(|p| p.as_str()).collect())
    }

    pub(crate) fn sanitize(
        &mut self,
        is_desired: bool,
    ) -> Result<(), NmstateError> {
        // Ignoring the changes of MAC address of VRF as it is a layer 3
        // interface.
        if is_desired {
            if let Some(mac) = self.base.mac_address.as_ref() {
                log::warn!(
                    "Ignoring MAC address {mac} of VRF interface {} \
                    as it is a layer 3(IP) interface",
                    self.base.name.as_str()
                );
            }
        }
        self.base.mac_address = None;
        if self.base.accept_all_mac_addresses == Some(false) {
            self.base.accept_all_mac_addresses = None;
        }
        // Sort ports
        if let Some(ports) = self.vrf.as_mut().and_then(|c| c.port.as_mut()) {
            ports.sort();
        }

        Ok(())
    }

    pub(crate) fn merge_table_id(
        &mut self,
        current: Option<&Interface>,
    ) -> Result<(), NmstateError> {
        if self.vrf.as_ref().map(|v| v.table_id) == Some(0) {
            if let Some(&Interface::Vrf(VrfInterface {
                vrf:
                    Some(VrfConfig {
                        table_id: cur_table_id,
                        ..
                    }),
                ..
            })) = current
            {
                if let Some(vrf_conf) = self.vrf.as_mut() {
                    vrf_conf.table_id = cur_table_id;
                }
            } else {
                let e = NmstateError::new(
                    ErrorKind::InvalidArgument,
                    format!(
                        "Route table ID undefined or 0 is not allowed for \
                        new VRF interface {}",
                        self.base.name
                    ),
                );
                log::error!("{}", e);
                return Err(e);
            }
        }
        Ok(())
    }
}

#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize, Default)]
#[non_exhaustive]
#[serde(deny_unknown_fields)]
pub struct VrfConfig {
    #[serde(alias = "ports")]
    /// Port list.
    /// Deserialize and serialize from/to `port`.
    /// Also deserialize from `ports`.
    pub port: Option<Vec<String>>,
    #[serde(
        rename = "route-table-id",
        default,
        deserialize_with = "crate::deserializer::u32_or_string"
    )]
    /// Route table ID of this VRF interface.
    /// Use 0 to preserve current `table_id`.
    /// Deserialize and serialize from/to `route-table-id`.
    pub table_id: u32,
}

impl MergedInterface {
    // Merge table ID from current if desired table ID is 0
    pub(crate) fn post_inter_ifaces_process_vrf(
        &mut self,
    ) -> Result<(), NmstateError> {
        if let Some(Interface::Vrf(apply_iface)) = self.for_apply.as_mut() {
            apply_iface.merge_table_id(self.current.as_ref())?;
        }
        if let Some(Interface::Vrf(verify_iface)) = self.for_verify.as_mut() {
            verify_iface.merge_table_id(self.current.as_ref())?;
        }
        Ok(())
    }
}