diff options
Diffstat (limited to 'bgpd/bgp.h')
| -rw-r--r-- | bgpd/bgp.h | 120 |
1 files changed, 83 insertions, 37 deletions
@@ -164,8 +164,9 @@ typedef U16 BGP_MH_LEN_T ; /* length of message inc. header: octets */ typedef U8 BGP_MH_TYPE_T ; /* BGP message type */ typedef UBX BGP_MH_BODY_T ; /* rest is body of message */ +VALUE(BGP_MH_MARKER_L = sizeof(BGP_MH_MARKER_T)) ; VALUE(BGP_MH_HEAD_L = /* message header length */ - sizeof(BGP_MH_MARKER_T) + BGP_MH_MARKER_L + sizeof(BGP_MH_LEN_T) + sizeof(BGP_MH_TYPE_T) ) ; CONFIRM(BGP_MH_HEAD_L == 19) ; /* well known value ! */ @@ -192,7 +193,9 @@ enum BGP_MT BGP_MT_KEEPALIVE = 4, BGP_MT_ROUTE_REFRESH = 5, /* RFC2918 */ - BGP_MT_MAX = 5, /* max known message type */ + BGP_MT_CAPABILITY = 6, /* draft-ietf-idr-dynamic-cap-10 */ + + BGP_MT_MAX = 6, /* max known message type */ BGP_MT_ROUTE_REFRESH_pre = 128 /* pre RFC2918 (Sep-2000) */ } ; @@ -264,6 +267,9 @@ typedef UBX BGP_CAP_VALUE_T ; /* variable -- depending on code */ VALUE(BGP_CAP_MIN_L = sizeof(BGP_CAP_CODE_T) + sizeof(BGP_CAP_LEN_T)) ; /* min len of a capability announcement */ +VALUE(BGP_CAP_MAX_L = 255) ; /* max len of a capability announcement */ +CONFIRM(sizeof(BGP_CAP_LEN_T) == 1) ; + enum /* order */ { BGP_CAP_CODE, @@ -284,7 +290,8 @@ enum BGP_CAN { BGP_CAN_G_RESTART = 64, /* Graceful Restart RFC4724 */ BGP_CAN_AS4 = 65, /* Supports 4-octet AS number RFC4893 */ - /* 66, Deprecated 6-Apr-2003 */ + BGP_CAN_DYNAMIC_CAP_old = 66, /* Dynamic Capability (draft 02) [Chen] + Deprecated 6-Apr-2003 */ BGP_CAN_DYNAMIC_CAP= 67, /* Dynamic Capability [Chen] */ BGP_CAN_MULTI_SESS = 68, /* Multisession Capability [Appanna] */ BGP_CAN_ADD_PATH = 69, /* ADD-PATH [draft-idr] */ @@ -437,6 +444,9 @@ enum BGP_NOMC BGP_NOMC_FSM = 5, /* Finite State Machine Error */ BGP_NOMC_CEASE = 6, /* Cease RFC4486 */ + BGP_NOMC_DYN_CAP = 7, /* Dynamic Capability + draft-ietf-idr-dynamic-cap-10.txt */ + BGP_NOMC_MAX = 6 /* max known error code */ } ; @@ -526,6 +536,17 @@ enum BGP_NOMS_CEASE /* BGP_NOMC_CEASE subcodes RFC4486 */ BGP_NOMS_C_MAX = 8 /* max known subcode */ } ; +enum BGP_DYN_CAP /* BGP_NOMC_DYN_CAP subcodes + draft-ietf-idr-dynamic-cap-10.txt */ +{ + BGP_NOMS_D_UNKN_SEQ = 1, /* Unknown Sequence Number MUST */ + BGP_NOMS_D_INV_LEN = 2, /* Invalid Capability Length MUST */ + BGP_NOMS_D_MALFORM = 3, /* Malformed Capability Length MUST */ + BGP_NOMS_D_UNSUP = 4, /* Unsupported Capability MUST */ + + BGP_NOMS_D_MAX = 4 /* max known subcode */ +} ; + /* Keepalive Message (type = BGP_MT_KEEPALIVE) -------------------------------*/ VALUE(BGP_KAM_L = BGP_MH_HEAD_L) ; /* Keepalive message is entirely empty */ @@ -539,11 +560,11 @@ typedef U16 BGP_RRM_AFI_T ; /* Address Family Identifier */ typedef U8 BGP_RRM_RES_T ; /* reserved = 0 */ typedef U8 BGP_RRM_SAFI_T ; /* Subsequent Address Family Identifier */ -VALUE(BGP_RRM_L = BGP_MH_HEAD_L /* Route Refresh length */ - + sizeof(BGP_RRM_AFI_T) - + sizeof(BGP_RRM_RES_T) - + sizeof(BGP_RRM_SAFI_T) ) ; -CONFIRM(BGP_RRM_L == 23) ; /* well known value ! */ +VALUE(BGP_RRM_MIN_L = BGP_MH_HEAD_L /* Route Refresh length */ + + sizeof(BGP_RRM_AFI_T) + + sizeof(BGP_RRM_RES_T) + + sizeof(BGP_RRM_SAFI_T) ) ; +CONFIRM(BGP_RRM_MIN_L == 23) ; /* well known value ! */ typedef U8 BGP_RRM_ORF_WHEN_T ; /* when to refresh -- see RFC5291 */ typedef UBX BGP_RRM_ORFS_T ; /* variable... see below */ @@ -625,6 +646,12 @@ VALUE(BGP_ORF_E_P_MIN_L = BGP_ORF_E_COM_L + sizeof(BGP_ORF_E_P_MAX_T) + sizeof(BGP_ORF_E_P_LEN_T) ) ; +/* Dynamic Capability Message (type = BGP_MT_CAPABILITY) ----------------------- + * + * If it's just header + 4 bytes, it's an RFC2918 Route Refresh request. + * If it's longer that that, it's an RFC5291 ORF + */ + /*============================================================================== * Capability Values */ @@ -645,47 +672,59 @@ VALUE(BGP_CAP_MPE_L = 4) ; /* Fixed length == 4 ! */ VALUE(BGP_CAP_RRF_L = 0) ; /* no value part */ -/* Outbound Route Filtering -- BGP_CAN_ORF -- RFC5291 ------------------------*/ - -typedef U16 BGP_CAP_ORF_AFI_T ; /* Address Family Identifier */ -typedef U8 BGP_CAP_ORF_RES_T ; /* Reserved: 0 */ -typedef U8 BGP_CAP_ORF_SAFI_T ; /* Subsequent Address Family */ -typedef U8 BGP_CAP_ORF_COUNT_T ; /* number of ORF Types supported */ -typedef UBX BGP_CAP_ORF_CAN_T ; /* variable -- 2 byte entries as below */ - -VALUE(BGP_CAP_ORF_MIN_L = sizeof(BGP_CAP_ORF_AFI_T) - + sizeof(BGP_CAP_ORF_RES_T) - + sizeof(BGP_CAP_ORF_SAFI_T) - + sizeof(BGP_CAP_ORF_COUNT_T) ) ; +/* Outbound Route Filtering -- BGP_CAN_ORF -- RFC5291 -------------------------- + * + * The capability value is *one* or more of the following entries: + */ +typedef U16 BGP_CAP_ORFE_AFI_T ; /* Address Family Identifier */ +typedef U8 BGP_CAP_ORFE_RES_T ; /* Reserved: 0 */ +typedef U8 BGP_CAP_ORFE_SAFI_T ; /* Subsequent Address Family */ +typedef U8 BGP_CAP_ORFE_COUNT_T ; /* number of ORF Types supported */ +typedef UBX BGP_CAP_ORFE_TYPES_T ; /* variable -- 2 byte entries as below */ -VALUE(BGP_CAP_ORF_COUNT_O = sizeof(BGP_CAP_ORF_AFI_T) - + sizeof(BGP_CAP_ORF_RES_T) - + sizeof(BGP_CAP_ORF_SAFI_T) ) ; +VALUE(BGP_CAP_ORFE_MIN_L = sizeof(BGP_CAP_ORFE_AFI_T) + + sizeof(BGP_CAP_ORFE_RES_T) + + sizeof(BGP_CAP_ORFE_SAFI_T) + + sizeof(BGP_CAP_ORFE_COUNT_T) ) ; enum /* order */ { - BGP_CAP_ORF_AFI, - BGP_CAP_ORF_RES, - BGP_CAP_ORF_SAFI, - BGP_CAP_ORF_COUNT, - BGP_CAP_ORF_CAN + BGP_CAP_ORFE_AFI, + BGP_CAP_ORFE_RES, + BGP_CAP_ORFE_SAFI, + BGP_CAP_ORFE_COUNT, + BGP_CAP_ORFE_TYPES } ; -/* Entries saying what ORF Types can be supported and how.....................*/ - -typedef U8 BGP_CAP_ORFE_TYPE_T ; /* the ORF Type supported */ -typedef U8 BGP_CAP_ORFE_CAN_T ; /* what can do with ORF Type */ +/* Entries saying what ORF Types can be supported and how....................... + * + * There are BGP_CAP_ORF_COUNT of these. + */ +typedef U8 BGP_CAP_ORFT_TYPE_T ; /* the ORF Type supported */ +typedef U8 BGP_CAP_ORFT_MODE_T ; /* what can do with ORF Type */ -VALUE(BGP_CAP_ORFE_L = sizeof(BGP_CAP_ORFE_TYPE_T) - + sizeof(BGP_CAP_ORFE_CAN_T)) ; +VALUE(BGP_CAP_ORFT_L = sizeof(BGP_CAP_ORFT_TYPE_T) + + sizeof(BGP_CAP_ORFT_MODE_T)) ; /* length of ORF capability Type entry */ +enum /* order */ +{ + BGP_CAP_ORFT_TYPE, + BGP_CAP_ORFT_MODE, +} ; -/* Values for the BGP_CAP_ORFE_CAN field */ +/* Values for the BGP_CAP_ORFT_TYPE field */ +enum +{ + BGP_CAP_ORFT_T_PFIX = 64, /* Address Prefix ORF */ + BGP_CAP_ORFT_T_PFIX_pre = 128, /* Address Prefix ORF, pre-RFC */ +} ; +/* Values for the BGP_CAP_ORFT_MODE field */ enum { - BGP_CAP_ORFE_CAN_RECV = 1, /* willing to receive ) can be... */ - BGP_CAP_ORFE_CAN_SEND = 2 /* would like to send ) ... combined */ + BGP_CAP_ORFT_M_RECV = 1, /* willing to receive */ + BGP_CAP_ORFT_M_SEND = 2, /* would like to send */ + BGP_CAP_ORFT_M_BOTH = 3 /* may be combined */ } ; /* Multiple Routes to a Destination (Labels) -- BGP_CAN_M_ROUTES -- RFC3107 ---- @@ -734,6 +773,11 @@ typedef U32 BGP_CAP_AS4_MY_AS_T ; /* can do AS4, and this is me AS4-wise */ VALUE(BGP_CAP_AS4_L = sizeof(BGP_CAP_AS4_MY_AS_T)) ; +/* Dynamic Capability -- BGP_CAN_DYNAMIC_CAP -- draft-10----------------------*/ +/* draft-ietf-idr-dynamic-cap-10 15-Jan-2010 */ + +VALUE(BGP_CAP_DYN_L = 0) ; + /*============================================================================== * Attributes -- form of the Path Attributes in an UPDATE Message * @@ -823,6 +867,8 @@ enum BGP_ASN { BGP_ASN_RES2 = 65535, /* Start of Reservation 2 (0xFFFF) */ + BGP_AS2_MAX = 65535, /* Last of the Mohicans (0xFFFF) */ + BGP_AS4_DOC_S = AS4(1,0), /* Start of Docm. & Samples AS4 (65536) */ BGP_AS4_DOC_E = AS4(1,15), /* End (65531) */ |