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Kea 2.5.8
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Kea 2.5.8
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obtained. More...
Variables | |
| static const uint32_t | isc::dhcp::HWAddr::HWADDR_SOURCE_ANY = 0xffffffff |
| Not really a type, only used in getMAC() calls. | |
| static const uint32_t | isc::dhcp::HWAddr::HWADDR_SOURCE_CLIENT_ADDR_RELAY_OPTION = 0x00000008 |
| Get it from RFC6939 option. | |
| static const uint32_t | isc::dhcp::HWAddr::HWADDR_SOURCE_DOCSIS_CMTS = 0x00000040 |
| A CMTS (acting as DHCP relay agent) that supports DOCSIS standard can insert DOCSIS options that contain client's MAC address. | |
| static const uint32_t | isc::dhcp::HWAddr::HWADDR_SOURCE_DOCSIS_MODEM = 0x00000080 |
| A cable modem (acting as DHCP client) that supports DOCSIS standard can insert DOCSIS options that contain client's MAC address. | |
| static const uint32_t | isc::dhcp::HWAddr::HWADDR_SOURCE_DUID = 0x00000002 |
| Extracted from DUID-LL or DUID-LLT (not 100% reliable as the client can send fake DUID). | |
| static const uint32_t | isc::dhcp::HWAddr::HWADDR_SOURCE_IPV6_LINK_LOCAL = 0x00000004 |
| Extracted from IPv6 link-local address. | |
| static const uint32_t | isc::dhcp::HWAddr::HWADDR_SOURCE_RAW = 0x00000001 |
| Obtained first hand from raw socket (100% reliable). | |
| static const uint32_t | isc::dhcp::HWAddr::HWADDR_SOURCE_REMOTE_ID = 0x00000010 |
| A relay can insert remote-id. | |
| static const uint32_t | isc::dhcp::HWAddr::HWADDR_SOURCE_SUBSCRIBER_ID = 0x00000020 |
| A relay can insert a subscriber-id option. | |
| static const uint32_t | isc::dhcp::HWAddr::HWADDR_SOURCE_UNKNOWN = 0x00000000 |
| Used when actual origin is not known, e.g. | |
obtained.
The list covers all possible MAC/hw address sources.
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Not really a type, only used in getMAC() calls.
Definition at line 37 of file hwaddr.h.
Referenced by isc::dhcp::CfgMACSource::CfgMACSource().
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Get it from RFC6939 option.
(A relay agent can insert client link layer address option). Note that a skilled attacker can fake that by sending his request relayed, so the legitimate relay will think it's a second relay.
Definition at line 59 of file hwaddr.h.
Referenced by isc::dhcp::Pkt::getMAC(), and isc::dhcp::Pkt6::getMACFromIPv6RelayOpt().
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A CMTS (acting as DHCP relay agent) that supports DOCSIS standard can insert DOCSIS options that contain client's MAC address.
This specific option is suboption 1026 in vendor-class option with vendor-id=4491. Client in this context would be a cable modem.
Definition at line 73 of file hwaddr.h.
Referenced by isc::dhcp::Pkt::getMAC(), and isc::dhcp::Pkt6::getMACFromDocsisCMTS().
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A cable modem (acting as DHCP client) that supports DOCSIS standard can insert DOCSIS options that contain client's MAC address.
This specific option is suboption 36 in vendor-class option with vendor-id=4491.
Definition at line 79 of file hwaddr.h.
Referenced by isc::dhcp::Pkt::getMAC(), and isc::dhcp::Pkt6::getMACFromDocsisModem().
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Extracted from DUID-LL or DUID-LLT (not 100% reliable as the client can send fake DUID).
Definition at line 48 of file hwaddr.h.
Referenced by isc::dhcp::Pkt::getMAC(), and isc::dhcp::Pkt6::getMACFromDUID().
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Extracted from IPv6 link-local address.
Not 100% reliable, as the client can use different IID other than EUI-64, e.g. Windows supports RFC4941 and uses random values instead of EUI-64.
Definition at line 53 of file hwaddr.h.
Referenced by isc::dhcp::Pkt::getMAC(), and isc::dhcp::Pkt::getMACFromIPv6().
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Obtained first hand from raw socket (100% reliable).
Definition at line 44 of file hwaddr.h.
Referenced by isc::dhcp::Pkt::getMAC().
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A relay can insert remote-id.
In some deployments it contains a MAC address (RFC4649).
Definition at line 63 of file hwaddr.h.
Referenced by isc::dhcp::Pkt::getMAC(), and isc::dhcp::Pkt6::getMACFromRemoteIdRelayOption().
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Used when actual origin is not known, e.g.
when reading from a lease database that didn't store that information.
Definition at line 41 of file hwaddr.h.
Referenced by isc::dhcp::PgSqlLease6Exchange::createBindForSend().
1.9.6