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use std::net::{IpAddr,Ipv4Addr,Ipv6Addr}; use std::fmt; use ikev2_transforms::*; use ikev2_notify::NotifyType; /// Payload exchange type: SA, Auth, CreateChildSA, etc. #[derive(Copy, Clone, PartialEq, Eq)] pub struct IkeExchangeType(pub u8); impl IkeExchangeType { pub const IKE_SA_INIT : IkeExchangeType = IkeExchangeType(34); pub const IKE_AUTH : IkeExchangeType = IkeExchangeType(35); pub const CREATE_CHILD_SA : IkeExchangeType = IkeExchangeType(36); pub const INFORMATIONAL : IkeExchangeType = IkeExchangeType(37); } impl fmt::Debug for IkeExchangeType { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match self.0 { 34 => f.write_str("IKE_SA_INIT"), 35 => f.write_str("IKE_AUTH"), 36 => f.write_str("CREATE_CHILD_SA"), 37 => f.write_str("INFORMATIONAL"), n => f.debug_tuple("IkeExchangeType").field(&n).finish(), } } } /// Protocol type: IKE, AH or ESP /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.3.1 #[derive(Clone, Copy, PartialEq, Eq)] pub struct ProtocolID(pub u8); impl ProtocolID { pub const IKE : ProtocolID = ProtocolID(1); pub const AH : ProtocolID = ProtocolID(2); pub const ESP : ProtocolID = ProtocolID(3); } impl fmt::Debug for ProtocolID { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match self.0 { 1 => f.write_str("IKE"), 2 => f.write_str("AH"), 3 => f.write_str("ESP"), n => f.debug_tuple("ProtocolID").field(&n).finish(), } } } pub const IKEV2_FLAG_INITIATOR : u8 = 0b1000; pub const IKEV2_FLAG_VERSION : u8 = 0b10000; pub const IKEV2_FLAG_RESPONSE : u8 = 0b100000; /// The IKE Header /// /// IKE messages use UDP ports 500 and/or 4500, with one IKE message per /// UDP datagram. Information from the beginning of the packet through /// the UDP header is largely ignored except that the IP addresses and /// UDP ports from the headers are reversed and used for return packets. /// When sent on UDP port 500, IKE messages begin immediately following /// the UDP header. When sent on UDP port 4500, IKE messages have /// prepended four octets of zeros. These four octets of zeros are not /// part of the IKE message and are not included in any of the length /// fields or checksums defined by IKE. Each IKE message begins with the /// IKE header, denoted HDR in this document. Following the header are /// one or more IKE payloads each identified by a Next Payload field in /// the preceding payload. Payloads are identified in the order in which /// they appear in an IKE message by looking in the Next Payload field in /// the IKE header, and subsequently according to the Next Payload field /// in the IKE payload itself until a Next Payload field of zero /// indicates that no payloads follow. If a payload of type "Encrypted" /// is found, that payload is decrypted and its contents parsed as /// additional payloads. An Encrypted payload MUST be the last payload /// in a packet and an Encrypted payload MUST NOT contain another /// Encrypted payload. /// /// The responder's SPI in the header identifies an instance of an IKE /// Security Association. It is therefore possible for a single instance /// of IKE to multiplex distinct sessions with multiple peers, including /// multiple sessions per peer. /// /// All multi-octet fields representing integers are laid out in big /// endian order (also known as "most significant byte first", or /// "network byte order"). /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.1 #[derive(Clone, Debug,PartialEq)] pub struct IkeV2Header { pub init_spi: u64, pub resp_spi: u64, pub next_payload: IkePayloadType, pub maj_ver: u8, pub min_ver: u8, pub exch_type: IkeExchangeType, pub flags: u8, pub msg_id: u32, pub length: u32, } /// Payload type #[derive(Clone, Copy, PartialEq, Eq)] pub struct IkePayloadType(pub u8); #[allow(non_upper_case_globals)] impl IkePayloadType { pub const NoNextPayload : IkePayloadType = IkePayloadType(0); pub const SecurityAssociation : IkePayloadType = IkePayloadType(33); pub const KeyExchange : IkePayloadType = IkePayloadType(34); pub const IdentInitiator : IkePayloadType = IkePayloadType(35); pub const IdentResponder : IkePayloadType = IkePayloadType(36); pub const Certificate : IkePayloadType = IkePayloadType(37); pub const CertificateRequest : IkePayloadType = IkePayloadType(38); pub const Authentication : IkePayloadType = IkePayloadType(39); pub const Nonce : IkePayloadType = IkePayloadType(40); pub const Notify : IkePayloadType = IkePayloadType(41); pub const Delete : IkePayloadType = IkePayloadType(42); pub const VendorID : IkePayloadType = IkePayloadType(43); pub const TrafficSelectorInitiator : IkePayloadType = IkePayloadType(44); pub const TrafficSelectorResponder : IkePayloadType = IkePayloadType(45); pub const EncryptedAndAuthenticated : IkePayloadType = IkePayloadType(46); pub const Configuration : IkePayloadType = IkePayloadType(47); pub const ExtensibleAuthentication : IkePayloadType = IkePayloadType(48); } impl fmt::Debug for IkePayloadType { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match self.0 { 0 => f.write_str("NoNextPayload"), 33 => f.write_str("SecurityAssociation"), 34 => f.write_str("KeyExchange"), 35 => f.write_str("IdentInitiator"), 36 => f.write_str("IdentResponder"), 37 => f.write_str("Certificate"), 38 => f.write_str("CertificateRequest"), 39 => f.write_str("Authentication"), 40 => f.write_str("Nonce"), 41 => f.write_str("Notify"), 42 => f.write_str("Delete"), 43 => f.write_str("VendorID"), 44 => f.write_str("TrafficSelectorInitiator"), 45 => f.write_str("TrafficSelectorResponder"), 46 => f.write_str("EncryptedAndAuthenticated"), 47 => f.write_str("Configuration"), 48 => f.write_str("ExtensibleAuthentication"), n => f.debug_tuple("IkePayloadType").field(&n).finish(), } } } /// Generic (unparsed payload) /// /// Defined in [RFC7296] #[derive(Debug,PartialEq)] pub struct IkeV2GenericPayload<'a> { pub hdr: IkeV2PayloadHeader, pub payload: &'a[u8], } /// Ciphersuite Proposal /// /// The Proposal structure contains within it a Proposal Num and an IPsec /// protocol ID. Each structure MUST have a proposal number one (1) /// greater than the previous structure. The first Proposal in the /// initiator's SA payload MUST have a Proposal Num of one (1). One /// reason to use multiple proposals is to propose both standard crypto /// ciphers and combined-mode ciphers. Combined-mode ciphers include /// both integrity and encryption in a single encryption algorithm, and /// MUST either offer no integrity algorithm or a single integrity /// algorithm of "NONE", with no integrity algorithm being the /// RECOMMENDED method. If an initiator wants to propose both combined- /// mode ciphers and normal ciphers, it must include two proposals: one /// will have all the combined-mode ciphers, and the other will have all /// the normal ciphers with the integrity algorithms. For example, one /// such proposal would have two proposal structures. Proposal 1 is ESP /// with AES-128, AES-192, and AES-256 bits in Cipher Block Chaining /// (CBC) mode, with either HMAC-SHA1-96 or XCBC-96 as the integrity /// algorithm; Proposal 2 is AES-128 or AES-256 in GCM mode with an /// 8-octet Integrity Check Value (ICV). Both proposals allow but do not /// require the use of ESNs (Extended Sequence Numbers). This can be /// illustrated as: /// /// ```ignore /// SA Payload /// | /// +--- Proposal #1 ( Proto ID = ESP(3), SPI size = 4, /// | | 7 transforms, SPI = 0x052357bb ) /// | | /// | +-- Transform ENCR ( Name = ENCR_AES_CBC ) /// | | +-- Attribute ( Key Length = 128 ) /// | | /// | +-- Transform ENCR ( Name = ENCR_AES_CBC ) /// | | +-- Attribute ( Key Length = 192 ) /// | | /// | +-- Transform ENCR ( Name = ENCR_AES_CBC ) /// | | +-- Attribute ( Key Length = 256 ) /// | | /// | +-- Transform INTEG ( Name = AUTH_HMAC_SHA1_96 ) /// | +-- Transform INTEG ( Name = AUTH_AES_XCBC_96 ) /// | +-- Transform ESN ( Name = ESNs ) /// | +-- Transform ESN ( Name = No ESNs ) /// | /// +--- Proposal #2 ( Proto ID = ESP(3), SPI size = 4, /// | 4 transforms, SPI = 0x35a1d6f2 ) /// | /// +-- Transform ENCR ( Name = AES-GCM with a 8 octet ICV ) /// | +-- Attribute ( Key Length = 128 ) /// | /// +-- Transform ENCR ( Name = AES-GCM with a 8 octet ICV ) /// | +-- Attribute ( Key Length = 256 ) /// | /// +-- Transform ESN ( Name = ESNs ) /// +-- Transform ESN ( Name = No ESNs ) /// ``` /// /// Each Proposal/Protocol structure is followed by one or more transform /// structures. The number of different transforms is generally /// determined by the Protocol. AH generally has two transforms: /// Extended Sequence Numbers (ESNs) and an integrity check algorithm. /// ESP generally has three: ESN, an encryption algorithm, and an /// integrity check algorithm. IKE generally has four transforms: a /// Diffie-Hellman group, an integrity check algorithm, a PRF algorithm, /// and an encryption algorithm. For each Protocol, the set of /// permissible transforms is assigned Transform ID numbers, which appear /// in the header of each transform. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.3.1 #[derive(Clone,Debug,PartialEq)] pub struct IkeV2Proposal<'a> { pub last: u8, pub reserved: u8, pub proposal_length: u16, pub proposal_num: u8, pub protocol_id: ProtocolID, pub spi_size: u8, pub num_transforms: u8, pub spi: Option<&'a[u8]>, pub transforms: Vec<IkeV2RawTransform<'a>>, } /// Key Exchange Payload /// /// The Key Exchange payload, denoted KE in this document, is used to /// exchange Diffie-Hellman public numbers as part of a Diffie-Hellman /// key exchange. The Key Exchange payload consists of the IKE generic /// payload header followed by the Diffie-Hellman public value itself. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.4 #[derive(Debug,PartialEq)] pub struct KeyExchangePayload<'a> { pub dh_group: IkeTransformDHType, pub reserved: u16, pub kex_data: &'a[u8], } /// Identification Payloads /// /// The Identification payloads, denoted IDi and IDr in this document, /// allow peers to assert an identity to one another. This identity may /// be used for policy lookup, but does not necessarily have to match /// anything in the CERT payload; both fields may be used by an /// implementation to perform access control decisions. When using the /// ID_IPV4_ADDR/ID_IPV6_ADDR identity types in IDi/IDr payloads, IKEv2 /// does not require this address to match the address in the IP header /// of IKEv2 packets, or anything in the TSi/TSr payloads. The contents /// of IDi/IDr are used purely to fetch the policy and authentication /// data related to the other party. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.5 #[derive(Debug,PartialEq)] pub struct IdentificationPayload<'a> { pub id_type: IdentificationType, pub reserved1: u8, pub reserved2: u16, pub ident_data: &'a[u8], } /// Type of Identification #[derive(Clone, Copy, Debug, PartialEq, Eq)] pub struct IdentificationType(pub u8); impl IdentificationType { /// A single four (4) octet IPv4 address. pub const ID_IPV4_ADDR : IdentificationType = IdentificationType(1); /// A fully-qualified domain name string. An example of an ID_FQDN /// is "example.com". The string MUST NOT contain any terminators /// (e.g., NULL, CR, etc.). All characters in the ID_FQDN are ASCII; /// for an "internationalized domain name", the syntax is as defined /// in [IDNA], for example "xn--tmonesimerkki-bfbb.example.net". pub const ID_FQDN : IdentificationType = IdentificationType(2); /// A fully-qualified RFC 822 email address string. An example of a /// ID_RFC822_ADDR is "jsmith@example.com". The string MUST NOT /// contain any terminators. Because of [EAI], implementations would /// be wise to treat this field as UTF-8 encoded text, not as /// pure ASCII. pub const ID_RFC822_ADDR : IdentificationType = IdentificationType(3); /// A single sixteen (16) octet IPv6 address. pub const ID_IPV6_ADDR : IdentificationType = IdentificationType(5); /// The binary Distinguished Encoding Rules (DER) encoding of an ASN.1 X.500 Distinguished /// Name. pub const ID_DER_ASN1_DN : IdentificationType = IdentificationType(9); /// The binary DER encoding of an ASN.1 X.509 GeneralName. pub const ID_DER_ASN1_GN : IdentificationType = IdentificationType(10); /// An opaque octet stream that may be used to pass vendor-specific information necessary to do /// certain proprietary types of identification. pub const ID_KEY_ID : IdentificationType = IdentificationType(11); } /// Certificate Payload /// /// The Certificate payload, denoted CERT in this document, provides a /// means to transport certificates or other authentication-related /// information via IKE. Certificate payloads SHOULD be included in an /// exchange if certificates are available to the sender. The Hash and /// URL formats of the Certificate payloads should be used in case the /// peer has indicated an ability to retrieve this information from /// elsewhere using an HTTP_CERT_LOOKUP_SUPPORTED Notify payload. Note /// that the term "Certificate payload" is somewhat misleading, because /// not all authentication mechanisms use certificates and data other /// than certificates may be passed in this payload. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.6 #[derive(Debug,PartialEq)] pub struct CertificatePayload<'a> { pub cert_encoding: CertificateEncoding, pub cert_data: &'a[u8], } /// Certificate Encoding /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.6 #[derive(Clone, Copy, Debug, PartialEq, Eq)] pub struct CertificateEncoding(pub u8); #[allow(non_upper_case_globals)] impl CertificateEncoding { /// PKCS #7 wrapped X.509 certificate pub const Pkcs7_X509 : CertificateEncoding = CertificateEncoding(1); /// PGP Certificate pub const PgpCert : CertificateEncoding = CertificateEncoding(2); /// DNS Signed Key pub const DnsKey : CertificateEncoding = CertificateEncoding(3); /// X.509 Certificate - Signature pub const X509Sig : CertificateEncoding = CertificateEncoding(4); /// Kerberos Token pub const Kerberos : CertificateEncoding = CertificateEncoding(6); /// Certificate Revocation List (CRL) pub const Crl : CertificateEncoding = CertificateEncoding(7); /// Authority Revocation List (ARL) pub const Arl : CertificateEncoding = CertificateEncoding(8); /// SPKI Certificate pub const SpkiCert : CertificateEncoding = CertificateEncoding(9); /// X.509 Certificate - Attribute pub const X509CertAttr : CertificateEncoding = CertificateEncoding(10); /// Deprecated (was Raw RSA Key) pub const OldRsaKey : CertificateEncoding = CertificateEncoding(11); /// Hash and URL of X.509 certificate pub const X509Cert_HashUrl : CertificateEncoding = CertificateEncoding(12); /// Hash and URL of X.509 bundle pub const X509Bundle_HashUrl : CertificateEncoding = CertificateEncoding(13); /// OCSP Content ([RFC4806](https://tools.ietf.org/html/rfc4806)) pub const OCSPContent : CertificateEncoding = CertificateEncoding(14); /// Raw Public Key ([RFC7670](https://tools.ietf.org/html/rfc7670)) pub const RawPublicKey : CertificateEncoding = CertificateEncoding(15); } /// Certificate Request Payload /// /// The Certificate Request payload, denoted CERTREQ in this document, /// provides a means to request preferred certificates via IKE and can /// appear in the IKE_INIT_SA response and/or the IKE_AUTH request. /// Certificate Request payloads MAY be included in an exchange when the /// sender needs to get the certificate of the receiver. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.7 #[derive(Debug,PartialEq)] pub struct CertificateRequestPayload<'a> { pub cert_encoding: CertificateEncoding, pub ca_data: &'a[u8], } /// Authentication Payload /// /// The Authentication payload, denoted AUTH in this document, contains /// data used for authentication purposes. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.8 #[derive(Debug,PartialEq)] pub struct AuthenticationPayload<'a> { pub auth_method: AuthenticationMethod, pub auth_data: &'a[u8], } /// Method of authentication used. /// /// See also [IKEV2IANA](https://www.iana.org/assignments/ikev2-parameters/ikev2-parameters.xhtml) for the latest values. #[derive(Clone, Copy, Debug, PartialEq, Eq)] pub struct AuthenticationMethod(pub u8); #[allow(non_upper_case_globals)] impl AuthenticationMethod { /// RSA Digital Signature pub const RsaSig : AuthenticationMethod = AuthenticationMethod(1); /// Shared Key Message Integrity Code pub const SharedKeyMIC : AuthenticationMethod = AuthenticationMethod(2); /// DSS Digital Signature pub const DssSig : AuthenticationMethod = AuthenticationMethod(3); /// ECDSA with SHA-256 on the P-256 curve pub const EcdsaSha256P256 : AuthenticationMethod = AuthenticationMethod(9); /// ECDSA with SHA-384 on the P-384 curve pub const EcdsaSha384P384 : AuthenticationMethod = AuthenticationMethod(10); /// ECDSA with SHA-512 on the P-512 curve pub const EcdsaSha512P512 : AuthenticationMethod = AuthenticationMethod(11); /// Generic Secure Password Authentication Method pub const GenericPass : AuthenticationMethod = AuthenticationMethod(12); /// NULL Authentication pub const Null : AuthenticationMethod = AuthenticationMethod(13); /// Digital Signature pub const DigitalSig : AuthenticationMethod = AuthenticationMethod(14); /// Test if value is in unassigned range pub fn is_unassigned(&self) -> bool { (self.0 >= 4 && self.0 <= 8) || (self.0 >= 15 && self.0 <= 200) } /// Test if value is in private use range pub fn is_private_use(&self) -> bool { self.0 >= 201 } } /// Nonce Payload /// /// The Nonce payload, denoted as Ni and Nr in this document for the /// initiator's and responder's nonce, respectively, contains random data used to guarantee /// liveness during an exchange and protect against replay attacks. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.9 #[derive(PartialEq)] pub struct NoncePayload<'a> { pub nonce_data: &'a[u8], } /// Notify Payload /// /// The Notify payload, denoted N in this document, is used to transmit informational data, such as /// error conditions and state transitions, to an IKE peer. A Notify payload may appear in a /// response message (usually specifying why a request was rejected), in an INFORMATIONAL exchange /// (to report an error not in an IKE request), or in any other message to indicate sender /// capabilities or to modify the meaning of the request. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.10 #[derive(PartialEq)] pub struct NotifyPayload<'a> { pub protocol_id: ProtocolID, pub spi_size: u8, pub notify_type: NotifyType, pub spi: Option<&'a[u8]>, pub notify_data: Option<&'a[u8]>, } /// Delete Payload /// /// The Delete payload, denoted D in this document, contains a /// protocol-specific Security Association identifier that the sender has /// removed from its Security Association database and is, therefore, no /// longer valid. Figure 17 shows the format of the Delete payload. It /// is possible to send multiple SPIs in a Delete payload; however, each /// SPI MUST be for the same protocol. Mixing of protocol identifiers /// MUST NOT be performed in the Delete payload. It is permitted, /// however, to include multiple Delete payloads in a single /// INFORMATIONAL exchange where each Delete payload lists SPIs for a /// different protocol. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.11 #[derive(Debug,PartialEq)] pub struct DeletePayload<'a> { pub protocol_id: ProtocolID, pub spi_size: u8, pub num_spi: u16, pub spi: &'a[u8], } /// Vendor ID Payload /// /// The Vendor ID payload, denoted V in this document, contains a vendor- /// defined constant. The constant is used by vendors to identify and /// recognize remote instances of their implementations. This mechanism /// allows a vendor to experiment with new features while maintaining /// backward compatibility. /// /// A Vendor ID payload MAY announce that the sender is capable of /// accepting certain extensions to the protocol, or it MAY simply /// identify the implementation as an aid in debugging. A Vendor ID /// payload MUST NOT change the interpretation of any information defined /// in this specification (i.e., the critical bit MUST be set to 0). /// Multiple Vendor ID payloads MAY be sent. An implementation is not /// required to send any Vendor ID payload at all. /// /// A Vendor ID payload may be sent as part of any message. Reception of /// a familiar Vendor ID payload allows an implementation to make use of /// private use numbers described throughout this document, such as /// private payloads, private exchanges, private notifications, etc. /// Unfamiliar Vendor IDs MUST be ignored. /// /// Writers of documents who wish to extend this protocol MUST define a /// Vendor ID payload to announce the ability to implement the extension /// in the document. It is expected that documents that gain acceptance /// and are standardized will be given "magic numbers" out of the Future /// Use range by IANA, and the requirement to use a Vendor ID will go /// away. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.12 #[derive(Debug,PartialEq)] pub struct VendorIDPayload<'a> { pub vendor_id: &'a[u8], } /// Type of Traffic Selector /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.13.1 /// /// See also [IKEV2IANA](https://www.iana.org/assignments/ikev2-parameters/ikev2-parameters.xhtml) for the latest values. #[derive(Clone, Copy, Debug, PartialEq, Eq)] pub struct TSType(pub u8); #[allow(non_upper_case_globals)] impl TSType { /// A range of IPv4 addresses pub const IPv4AddrRange : TSType = TSType(7); /// A range of IPv6 addresses pub const IPv6AddrRange : TSType = TSType(8); /// Fibre Channel Traffic Selectors ([RFC4595](https://tools.ietf.org/html/rfc4595)) pub const FcAddrRange : TSType = TSType(9); } /// Traffic Selector /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.13.1 #[derive(Debug,PartialEq)] pub struct TrafficSelector<'a> { pub ts_type: TSType, pub ip_proto_id: u8, pub sel_length: u16, pub start_port: u16, pub end_port: u16, pub start_addr: &'a[u8], pub end_addr: &'a[u8], } fn ipv4_from_slice(b:&[u8]) -> Ipv4Addr { Ipv4Addr::new(b[0], b[1], b[2], b[3]) } fn ipv6_from_slice(b:&[u8]) -> Ipv6Addr { Ipv6Addr::new( (b[0] as u16) << 8 | (b[1] as u16), (b[2] as u16) << 8 | (b[3] as u16), (b[4] as u16) << 8 | (b[5] as u16), (b[6] as u16) << 8 | (b[7] as u16), (b[8] as u16) << 8 | (b[9] as u16), (b[10] as u16) << 8 | (b[11] as u16), (b[12] as u16) << 8 | (b[13] as u16), (b[14] as u16) << 8 | (b[15] as u16), ) } impl<'a> TrafficSelector<'a> { pub fn get_ts_type(&self) -> TSType { self.ts_type } pub fn get_start_addr(&self) -> Option<IpAddr> { match self.ts_type { TSType::IPv4AddrRange => Some(IpAddr::V4(ipv4_from_slice(self.start_addr))), TSType::IPv6AddrRange => Some(IpAddr::V6(ipv6_from_slice(self.start_addr))), _ => None, } } pub fn get_end_addr(&self) -> Option<IpAddr> { match self.ts_type { TSType::IPv4AddrRange => Some(IpAddr::V4(ipv4_from_slice(self.end_addr))), TSType::IPv6AddrRange => Some(IpAddr::V6(ipv6_from_slice(self.end_addr))), _ => None, } } } /// Traffic Selector Payload /// /// The Traffic Selector payload, denoted TS in this document, allows /// peers to identify packet flows for processing by IPsec security /// services. The Traffic Selector payload consists of the IKE generic /// payload header followed by individual Traffic Selectors. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.13 #[derive(Debug,PartialEq)] pub struct TrafficSelectorPayload<'a> { pub num_ts: u8, pub reserved: &'a[u8], // 3 bytes pub ts: Vec<TrafficSelector<'a>>, } /// IKE Message Payload Content /// /// The content of an IKE message is one of the defined payloads. /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.2 #[derive(Debug,PartialEq)] pub enum IkeV2PayloadContent<'a> { SA(Vec<IkeV2Proposal<'a>>), KE(KeyExchangePayload<'a>), IDi(IdentificationPayload<'a>), IDr(IdentificationPayload<'a>), Certificate(CertificatePayload<'a>), CertificateRequest(CertificateRequestPayload<'a>), Authentication(AuthenticationPayload<'a>), Nonce(NoncePayload<'a>), Notify(NotifyPayload<'a>), Delete(DeletePayload<'a>), VendorID(VendorIDPayload<'a>), TSi(TrafficSelectorPayload<'a>), TSr(TrafficSelectorPayload<'a>), Unknown(&'a[u8]), Dummy, } /// Generic Payload Header /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3.2 #[derive(Clone,Debug,PartialEq)] pub struct IkeV2PayloadHeader { pub next_payload_type: IkePayloadType, pub critical: bool, pub reserved: u8, pub payload_length: u16, } /// IKE Message Payload /// /// Defined in [RFC7296](https://tools.ietf.org/html/rfc7296) section 3 #[derive(Debug,PartialEq)] pub struct IkeV2Payload<'a> { pub hdr: IkeV2PayloadHeader, pub content: IkeV2PayloadContent<'a>, }