diff options
Diffstat (limited to 'plugins/vcgn-plugin/vcgn/tcp_header_definitions.h')
| -rw-r--r-- | plugins/vcgn-plugin/vcgn/tcp_header_definitions.h | 1582 |
1 files changed, 1582 insertions, 0 deletions
diff --git a/plugins/vcgn-plugin/vcgn/tcp_header_definitions.h b/plugins/vcgn-plugin/vcgn/tcp_header_definitions.h new file mode 100644 index 00000000000..02920bcc8ee --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/tcp_header_definitions.h @@ -0,0 +1,1582 @@ +/* + *----------------------------------------------------------------------------- + * + * Filename: tcp_header_definitions.h + * + * Description: Layer 2, 3, 4 definitions and header types + * + * Assumptions and Constraints: + * + * Copyright (c) 2012-2013 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *----------------------------------------------------------------------------- + */ + +#ifndef __TCP_HEADER_DEFINITIONS_H__ +#define __TCP_HEADER_DEFINITIONS_H__ + +/* + * A general list of Layer 3 protocols, used by many Layer 2 encaps. + * + * formerly: + * TYPE_IP TYPE_IP10MB + * TYPE_ARP TYPE_RFC826_ARP + * TYPE_RARP TYPE_REVERSE_ARP + * TYPE_MPLS TYPE_TAGSWITCH + */ +#define TYPE_IP 0x0800 +#define TYPE_IP_V6 0x86DD +#define TYPE_ARP 0x0806 +#define TYPE_RARP 0x8035 +#define TYPE_MPLS 0x8847 +#define TYPE_CDP 0x2000 +#define TYPE_CGMP 0x2001 +#define TYPE_LACP 0x8808 /* 802.3ad */ +#define TYPE_CLNS 0xFEFE + +#define TYPE_PPPOE_SESSION 0x8864 /* PTA plus */ +#define TYPE_PPPOE_DISCOVERY 0x8863 /* PTA plus */ + +/* + * for atm arp handling + */ +#define IN_ATM_ARP_BIT 0x0008 + +/* + * The Layer 2 header structures. + */ + + +/* +** HDLC +*/ + +typedef struct hdlc_hdr_type { + u16 addr; + u16 type; + u8 data[0]; +} hdlc_hdr_type; + +#define HDLC_ADDR_CMD 0x0F00 +#define HDLC_HDR_LEN 4 +#define HDLC_BROADCAST_BIT 31 +#define TYPE_KEEP 0x8035 + +#define HDLC_CLNS (HDLC_ADDR_CMD<<16|TYPE_CLNS) +#define HDLC_CDP (HDLC_ADDR_CMD<<16|TYPE_CDP) +#define HDLC_MPLS (HDLC_ADDR_CMD<<16|TYPE_MPLS) +#define HDLC_IP (HDLC_ADDR_CMD<<16|TYPE_IP) +#define HDLC_IP_V6 (HDLC_ADDR_CMD<<16|TYPE_IP_V6) +#define HDLC_KEEPALIVE_CMD (HDLC_ADDR_CMD<<16|TYPE_KEEP) + +/* +** PPP +*/ + +typedef struct ppp_comp_hdr_type { + union { + u8 ppp_u8[4]; + u16 ppp_u16[2]; + u32 ppp_u32; + } ppp_comp_u; +} ppp_comp_hdr_type; + +#define PPP_STATION 0xFF03 +#define PPP_STATION_LEN 0x2 +#define PPP_ENDPROTO 0x01 +#define PPP_NOT_ENDPROTO 0xfffffffe +#define PPP_CONTROL_PROTOCOL_MASK 0x8000 +#define PPP_CONTROL_PROTOCOL_BIT 15 +#define PPP_CSCO_LEN 4 +#define PPP_RFC1661_LEN 2 +#define PPP_RFC1661_COMP_LEN 1 + +#define TYPE_PPP_IP 0x0021 +#define TYPE_PPP_IP_V6 0x0057 +#define TYPE_PPP_MPLS_UNICAST 0x0281 +#define TYPE_PPP_MPLS_CONTROL 0x8281 +#define TYPE_PPP_CLNS 0x0023 +#define TYPE_PPP_CDP 0x0207 + +#define TYPE_PPP_IPCP 0x8021 +#define TYPE_PPP_LCP 0xC021 +#define TYPE_PPP_PAP 0xC023 +#define TYPE_PPP_LQR 0xC025 +#define TYPE_PPP_CHAP 0xC223 + + +#define TYPE_PPP_LCP_ECHO_REQUEST 0x09 +/* +** MultiLink PPP +*/ + +#define MLPPP_FLAGS_FIELD_LEN 4 +#define MLPPP_BEGIN_MASK 0x80000000 +#define MLPPP_END_MASK 0x40000000 +#define MLPPP_BEGIN_END_MASK (MLPPP_BEGIN_MASK|MLPPP_END_MASK) +#define MLPPP_BEGIN_END_SHIFT 30 +#define MLPPP_SEQUENCE_NUM_MASK 0x00FFFFFF +#define MLPPP_MC_CLASS_ID_MASK 0x3C000000 +#define MLPPP_MC_CLASS_SHIFT 26 + +#define TYPE_PPP_MULTILINK 0x003D + +/* these are needed in the micro-code, for optimizations */ +#define TYPE_PPP_FULL_IP_4 0xff030021 +#define TYPE_PPP_FULL_IP_3 0xff0321 +#define TYPE_PPP_FULL_IP_2 0x0021 +#define TYPE_PPP_FULL_IP_1 0x21 + +#define MLPPP_BEGIN_END_MASK_BYTE 0xC0 +#define MLPPP_BEGIN_BIT 7 +#define MLPPP_END_BIT 6 +#define MLPPP_MC_CLASS_ID_MASK_BYTE 0x3C +#define MLPPP_MC_CLASS_ID_SHIFT_BYTE 2 + +#define MLPOA_BEGIN_END_SHIFT 24 + +/* +** Ethernet ARPA +*/ + + +typedef struct ethernet_arpa_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u16 type; + u8 data[0]; +} ethernet_arpa_hdr_type; + +typedef struct extension_802p3_type { + u16 type; + u8 ctl; + u8 data[0]; +} extension_802p3_type; + +typedef struct ethernet_802p3_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u16 length; + extension_802p3_type extension; +} ethernet_802p3_hdr_type; + + +typedef struct ethernet_vlan_802p3_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u16 type1; + u16 vlan_id; + u16 length; + extension_802p3_type extension; +} ethernet_vlan_802p3_hdr_type; + +#define MIN_ETHERNET_PKT_LEN 60 +#define MAX_ETHERNET_PKT_LEN 1500 +#define ETHERNET_ARPA_HDR_LEN 14 +#define ETHERNET_TYPE_FIELD_SIZE 2 + + +/* +** Ethernet 802.1q (VLAN) +*/ + +typedef struct ethernet_vlan_hdr_type { + u8 dest_addr[6]; + u8 src_addr[6]; + u16 type1; + u16 vlan_hdr; + u16 type2; + u8 data[0]; +} ethernet_vlan_hdr_type; + + +/* +** Ethernet 802.1.q-in-q (QinQ) +*/ + +typedef struct ethernet_qinq_hdr_type { + u8 dest_addr[6]; + u8 src_addr[6]; + u16 type1; + u16 vlan_hdr1; + u16 type2; + u16 vlan_hdr2; + u16 type3; + u8 data[0]; +} ethernet_qinq_hdr_type; + + +/* +** Ethernet 802.3ad EtherChannel control +*/ + +typedef struct ethernet_lacp_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u16 type; + u16 LAcmd; + u8 data[0]; +} ethernet_lacp_hdr_type; + + +/* +** Ethernet 802.1 Bridge (spanning tree) PDU +*/ + +typedef struct ethernet_bpdu_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u8 dsap; + u8 ssap; + u8 control; + u8 more[0]; +} ethernet_bpdu_hdr_type; + +#define ETH_BPDU_DSAP 0x42 +#define ETH_BPDU_SSAP 0x42 +#define ETH_BPDU_CONTROL 0x03 +#define ETH_BPDU_MATCH 0x424203 + + +/************************************************************/ +/* PTA PLUS ETHERNET ENCAPSULATIONS */ +/* + * PPPoEoARPA 20 bytes + */ +typedef struct ethernet_pppoe_arpa_hdr_type { + u8 daddr[6]; + u8 saddr[6]; + u16 type; + /* pppoe hdr at begining of enet payload */ + u16 vtc; /* version(4b), type(4b) and code(8b) fields */ + u16 sid; + u16 len; + u8 ppp_header[0]; /* PPP header start, no ff03 field present */ +} ethernet_pppoe_arpa_hdr_type; + +typedef struct pppoe_hdr_type { + /* pppoe hdr at begining of enet payload */ + u16 vtc; /* version(4b), type(4b) and code(8b) fields */ + u16 sid; + u16 len; + u8 ppp_header[0]; /* PPP header start, no ff03 field present */ +} pppoe_hdr_type; + +/* +** PPPoEoVLAN (802.1p or 802.1q) 24 bytes +*/ +typedef struct ethernet_pppoe_vlan_hdr_type { + u8 dest_addr[6]; + u8 src_addr[6]; + u16 type1; + u16 vlan_hdr; + u16 type2; + /* pppoe hdr at begining of enet payload */ + u16 vtc; /* version(4b), type(4b) and code(8b) fields */ + u16 sid; + u16 len; + u8 ppp_header[0]; /* PPP header start, no ff03 field present */ +} ethernet_pppoe_vlan_hdr_type; + +/* +** PPPoEoQinQ 28 bytes +*/ +typedef struct ethernet_pppoe_qinq_hdr_type { + u8 dest_addr[6]; + u8 src_addr[6]; + u16 type1; + u16 vlan_hdr1; + u16 type2; + u16 vlan_hdr2; + u16 type3; + /* pppoe hdr at begining of enet payload */ + u16 vtc; /* version(4b), type(4b) and code(8b) fields */ + u16 sid; + u16 len; + u8 ppp_header[0]; /* PPP header start, no ff03 field present */ +} ethernet_pppoe_qinq_hdr_type; + +#define ETH_PPPOE_ARPA_HDR_LEN sizeof(ethernet_pppoe_arpa_hdr_type) +#define ETH_PPPOE_VLAN_HDR_LEN sizeof(ethernet_pppoe_vlan_hdr_type) +#define ETH_PPPOE_QINQ_HDR_LEN sizeof(ethernet_pppoe_qinq_hdr_type) +#define PPPOE_HDR_LEN 6 +/* End PTA PLUS ETHERNET ENCAPSULATIONS */ +/****************************************************************/ + + + +#define TYPE_DOT1Q 0x8100 +#define DOT1Q_HDR_LEN 18 +#define DOT1Q_VLAN_ID_MASK 0x0FFF +#define DOT1Q_VLAN_ID_RES_0 0x0000 +#define DOT1Q_VLAN_ID_RES_4095 0x0FFF +#define DOT1Q_ARPA_INDEX DOT1Q_VLAN_ID_RES_0 + +#define TYPE_QINQ_91 0x9100 +#define TYPE_QINQ_92 0x9200 +#define TYPE_QINQ_88A8 0x88A8 +#define QINQ_HDR_LEN 22 + +/* + * 802.1p support + */ +#define DOT1P_VLAN_COS_MASK 0xE000 +#define DOT1P_VLAN_COS_SHIFT 13 +#define DOT1P_MAX_COS_VALUE 7 + +/* +** Frame Relay +*/ + +/* + * formerly: + * TYPE_FR_IETF_IPV4 ENCAPS_FR_IETF + * TYPE_FR_CISCO_IPV4 ENCAPS_FR_CISCO + * TYPE_FR_ISIS ENCAPS_FR_ISIS + * + * FR_LMI_DLCI_CISCO LMI_DLCI_CISCO + * FR_LMI_DLCI_IETF LMI_DLCI_ITUANSI + */ + +typedef struct frame_relay_hdr_type { + u16 address; + u16 control_nlpid; + u8 data[0]; +} frame_relay_hdr_type; + +typedef struct fr_snap_hdr_type { + u16 address; + u8 control; + u8 pad; + u8 nlpid; + u8 oui[3]; + u16 protocol_id; +} fr_snap_hdr_type; + +#define FR_ADDR_LEN 2 +#define FR_CTL_NLPID_LEN 2 +#define FR_HDR_LEN (FR_ADDR_LEN+FR_CTL_NLPID_LEN) + +/* + * These defines are for the FR-SNAP header. + * The SNAP header is set up solely so that we can + * identify ARP packets, which look like this: + * + * control pad nlpid oui protocol_id + * 03 00 80 00 00 00 0806 + */ +#define FR_ARP_CONTROL 0x03 +#define FR_ARP_PAD 0x00 +#define FR_ARP_NLPID 0x80 +#define FR_ARP_OUI_0 0x00 +#define FR_ARP_OUI_1 0x00 +#define FR_ARP_OUI_2 0x00 +/* + * these are used only in the tmc code + */ +#define FR_NLPID_OUI_LEN 4 +#define FR_ARP_CONTROL_PAD 0x0300 +#define FR_ARP_NLPID_OUI 0x80000000 + + +#define FR_DLCI_UPPER_MASK 0xFC00 +#define FR_DLCI_UPPER_SHIFT 6 +#define FR_DLCI_LOWER_MASK 0x00F0 +#define FR_DLCI_LOWER_SHIFT 4 + +/* + * Defines for converting a DLCI for insertion into a synthesized FR address + * field for FRoMPLS disposition. + + * bit 8 7 6 5 4 3 2 1 + * +-------------------------------+ + * | Flag | + * | 0 1 1 1 1 1 1 0 | + * +-------------------------------+ + * | Upper DLCI |C/R| 0 | + * +-------------------------------+ + * | Lower DLCI | F | B | DE| 1 | + * +-------------------------------+ + * | | + * :Frame relay information field : + * : (i.e.payload) : + * | | + * +-------------------------------+ + * | FCS (2 or 4 octets) | + * | | + * +-------------------------------+ + * | Flag | + * | 0 1 1 1 1 1 1 0 | + * +-------------------------------+ + * + * a-With 10 bits for the DLCI + */ +#define FR_DLCI_TO_HDR_UPPER_MASK 0x3f0 +#define FR_DLCI_TO_HDR_UPPER_SHIFT (10-4) +#define FR_DLCI_TO_HDR_LOWER_MASK 0xf +#define FR_DLCI_TO_HDR_LOWER_SHIFT 4 + +#define TYPE_FR_IETF_IP 0x03CC +#define TYPE_FR_IETF_IP_V6 0x038E +#define TYPE_FR_CISCO_IP 0x0800 +#define TYPE_FR_CISCO_IP_V6 0x86DD +#define TYPE_FR_ISIS 0x0383 +#define TYPE_FR_SNAP0PAD 0x0380 +#define TYPE_FR_SNAP1PAD 0x0300 +#define TYPE_FR_FRF12 0x03B1 +#define TYPE_FR_MLP 0x03CF +#define TYPE_FR_EEK 0x8037 + +#define FR_LMI_DLCI_CISCO 1023 +#define FR_LMI_DLCI_IETF 0 + +#define FR_NOT_NOT_NOT 0 +#define FR_NOT_NOT_DE 1 +#define FR_NOT_BECN_NOT 2 +#define FR_NOT_BECN_DE 3 +#define FR_FECN_NOT_NOT 4 +#define FR_FECN_NOT_DE 5 +#define FR_FECN_BECN_NOT 6 +#define FR_FECN_BECN_DE 7 + +#define FR_FECN_BECN_DE_MASK 0x000E +#define FR_FECN_BECN_DE_SHIFT 1 + +/* Address field extension bit for standard 2-byte FR address field */ +#define FR_EA1_MASK 0x0001 +#define FR_EA1_MASK_BIT 0 + +/* + * these are needed in the micro-code, for optimizations + */ + +/* the bit position (in the address field) of the LSB of the DLCI */ +#define FR_DLCI_LS_BIT 4 + + +/* +** +** MultiLink Frame Relay +** +*/ + +typedef struct mlfr_hdr_type { + u16 frag_hdr; + u16 address; + u16 control_nlpid; + u8 data[0]; +} mlfr_hdr_type; + +/* + * LIP frames have B, E and C set--the other + * bits in the frag_hdr field are irrelevant. + * + * NOTE: Injected LIP packets have a frag_hdr of 0xE100. + * + */ +#define MLFR_LIP_FRAME 0xE100 +#define MLFR_LIP_MASK 0xE000 +#define MLFR_FRAG_HDR_LEN 2 + +#define MLFR_BEGIN_MASK 0x8000 +#define MLFR_END_MASK 0x4000 +#define MLFR_BEGIN_END_MASK (MLFR_BEGIN_MASK|MLFR_END_MASK) +#define MLFR_BEGIN_END_SHIFT 14 + +#define MLFR_SEQ_NUM_HI_MASK 0x1E00 +#define MLFR_SEQ_NUM_HI_SHIFT 1 +#define MLFR_SEQ_NUM_LO_MASK 0x00FF + +/* + * these are needed in the micro-code, for optimizations + */ +#define MLFR_BEGIN_END_MASK_BYTE 0xC0 + + +/* + * FRF.12 definitions + */ +typedef struct frf12_hdr_type_ { + u16 address; + u16 control_nlpid; + u16 frag_hdr; + u8 data[0]; +} frf12_hdr_type; + +#define FRF12_FRAG_HDR_LEN sizeof(frf12_hdr_type) + +#define FRF12_BEGIN_MASK 0x8000 +#define FRF12_END_MASK 0x4000 +#define FRF12_BEGIN_END_MASK (FRF12_BEGIN_MASK|FRF12_END_MASK) +#define FRF12_BEGIN_END_SHIFT 8 + +#define FRF12_SEQ_NUM_HI_MASK 0x1E00 +#define FRF12_SEQ_NUM_HI_SHIFT 1 +#define FRF12_SEQ_NUM_LO_MASK 0x00FF +#define FRF12_BEGIN_END_MASK_BYTE 0xC0 + + + +/* +** +** MLP over Frame Relay +** The ppp hdr can be either a +** an MLP hdr or a PPP hdr +** +** MLP can be compressed or not: +** a) 0xff03003d +** b) 0x003d +** c) 0x3d +** followed by: +** 1 byte with begin/end bits +** 3 bytes of a sequence # +** +** PPP can be also be compressed or not. +** Only these will be fwded: +** a) 0xff030021 +** b) 0xff0321 +** c) 0x0021 +** d) 0x21 +** +** +*/ +typedef struct mlpofr_hdr_type { + u16 address; + u16 control_nlpid; + u8 ppp_header[0]; +} mlpofr_hdr_type; + +/* +** ATM - +*/ + +/* + * channel_handle is defined as follows: + * + * bits 15 = reserved (must be 0) + * bits 14 - 0 = channel handle + * + * + * flags is a bitfield defined as follows: + * + * bits 15 - 13 = proto (PPPoA RFC1661 = 0, + * PPPoE = 1, + * RBE = 2, + * PPPoA Cisco = 3, + * MLPoATM RFC1661 = 4, + * MLPoATM Cisco = 5, + * Reserved = 6-7) + * bit 12 = encap (MUX=0, + * SNAP=1) + * bits 11 - 6 = reserved (must be 0) + * bits 5 - 3 = pkt_type (AAL5 pkt = 0, + * Raw cell (includes F4 OAM) = 1, + * F5 segment OAM cell = 2 + * F5 end-to-end OAM cell = 3 + * Reserved = 4-7) + * bit 2 = EFCI (congestion indication) + * bit 1 = reserved (must be 0) + * bit 0 = CLP (cell loss priority) + */ + +typedef struct apollo_atm_generic_hdr_type { + u16 channel_handle; + u16 flags; +} apollo_atm_generic_hdr_type; + +typedef struct apollo_atm_aal5_snap_hdr_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 oui[3]; + u16 type; + u8 data[0]; +} apollo_atm_aal5_snap_hdr_type; + +typedef struct atm_aal5_snap_hdr_type { + u8 dsap; + u8 ssap; + u8 control; + u8 oui[3]; + u16 pid; + u16 pad; + u8 data[0]; +} atm_aal5_snap_hdr_type; + + +typedef struct apollo_atm_aal5_snap_hdr1_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 oui0; + u8 oui1; + u8 oui2; + u16 type; + u8 data[0]; +} apollo_atm_aal5_snap_hdr1_type; + +typedef struct apollo_atm_aal5_clns_hdr_type { + u16 channel_handle; + u16 flags; + u16 type; + u16 data; +} apollo_atm_aal5_clns_hdr_type; + +typedef struct apollo_atm_aal5_ilmi_hdr_type { + u16 channel_handle; + u16 flags; + u8 data[0]; +} apollo_atm_aal5_ilmi_hdr_type; + +typedef struct apollo_atm_aal5_mux_hdr_type { + u16 channel_handle; + u16 flags; + u8 data[0]; +} apollo_atm_aal5_mux_hdr_type; + +typedef struct apollo_atm_oam_f4_hdr_type { + u16 channel_handle; + u16 flags; + /* + * gcf_vpi_vci_pt_clp is a bitfield defined as follows: + * + * bits 31 - 28 = GCF + * bits 27 - 20 = VPI + * bits 19 - 4 = VCI + * bits 3 - 1 = PT + * bit 0 = CLP + */ + u32 gcf_vpi_vci_pt_clp; + u8 data[0]; +} apollo_atm_oam_f4_hdr_type; + +#define APOLLO_ATM_OAM_F4_HDR_PT_MASK 0xE +#define APOLLO_ATM_OAM_F4_HDR_PT_SHIFT 1 + +typedef struct apollo_atm_oam_f5_hdr_type { + u16 channel_handle; + u16 flags; + u8 data[0]; +} apollo_atm_oam_f5_hdr_type; + +#define APOLLO_IRONBUS_EXT_LESS_PROTO 0xFFFF0FFF +#define APOLLO_CHANNEL_HANDLE_MASK 0xFFFF +#define APOLLO_PKT_TYPE_MASK 0x0038 +#define APOLLO_PKT_TYPE_SHIFT 3 +#define APOLLO_FLAG_CLP_MASK 0x0001 +#define APOLLO_FLAG_CLP_BIT 0 + +#define APOLLO_CHANNEL_HANDLE_RES_0 0x0000 +/* + * The 1 byte HEC field is removed by the line card. + */ +#define APOLLO_F4_RX_CELL_SIZE 52 +#define APOLLO_F5_RX_CELL_SIZE 52 + +#define APOLLO_ATM_PACKET_TYPE_AAL5 0 +#define APOLLO_ATM_PACKET_TYPE_F4 1 +#define APOLLO_ATM_PACKET_TYPE_F5_SEG 2 +#define APOLLO_ATM_PACKET_TYPE_F5_E_TO_E 3 +#define APOLLO_ATM_PACKET_TYPE_4 4 +#define APOLLO_ATM_PACKET_TYPE_5 5 +#define APOLLO_ATM_PACKET_TYPE_6 6 +#define APOLLO_ATM_PACKET_RESERVED 7 + +#define APOLLO_AAL5_MUX_IP_HDR_LEN 4 +#define APOLLO_AAL5_SNAP_HDR_LEN 12 + +#define APOLLO_RCV_IRON_BUS_EXT_LEN 4 +#define APOLLO_TX_IRON_BUS_EXT_LEN 8 + +/* + * MLPoA type definitions + */ +#define MLPOA_CISCO_HDR 0xFF03 +#define MLPOA_SNAP_HDR_LEN 4 +#define MLPOA_CISCO_HDR_LEN 2 + +/************************************************************/ +/* PTA PLUS ATM ENCAPSULATIONS */ + +/* RBE header 28 bytes*/ +typedef struct apollo_atm_aal5_llcsnap_rbe_hdr_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 oui[3]; + u16 pid; + u16 pad; + /* enet header within */ + u8 daddr[6]; + u8 saddr[6]; + u16 type; + u8 data[0]; /* start of IP */ +} apollo_atm_aal5_llcsnap_rbe_hdr_type; + +/* PPPoEoA header 34 bytes*/ +typedef struct apollo_atm_aal5_llcsnap_pppoe_hdr_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 oui[3]; + u16 pid; + u16 pad; + /* enet header within */ + u8 daddr[6]; + u8 saddr[6]; + u16 type; + /* pppoe hdr at begining of enet payload */ + u16 vtc; /* version(4b), type(4b) and code(8b) fields */ + u16 sid; + u16 len; + u8 ppp_header[0]; /* PPP header start, no ff03 field present */ +} apollo_atm_aal5_llcsnap_pppoe_hdr_type; + + +/* PPPoA MUX 4 bytes*/ +typedef struct apollo_atm_aal5_mux_pppoa_hdr_type { + u16 channel_handle; + u16 flags; + u8 ppp_header[0]; +} apollo_atm_aal5_mux_pppoa_hdr_type; + + +/* PPPoA SNAP LLC 8 bytes */ +typedef struct apollo_atm_aal5_llcsnap_pppoa_hdr_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 nlpid; + u8 ppp_header[0]; +} apollo_atm_aal5_llcsnap_pppoa_hdr_type; + +/* MLPoA MUX (generic) */ +typedef struct apollo_atm_aal5_mux_mlpoa_hdr_type { + u16 channel_handle; + u16 flags; + u8 ppp_header[0]; +} apollo_atm_aal5_mux_mlpoa_hdr_type; + +/* MLPoA SNAP LLC */ +typedef struct apollo_atm_aal5_llcsnap_mlpoa_hdr_type { + u16 channel_handle; + u16 flags; + u8 dsap; + u8 ssap; + u8 control; + u8 nlpid; + u8 ppp_header[0]; +} apollo_atm_aal5_llcsnap_mlpoa_hdr_type; + + +#define PPPOA_SNAPLLC_HDR_LEN sizeof(apollo_atm_aal5_llcsnap_pppoa_hdr_type) +#define PPPOA_MUX_HDR_LEN sizeof(apollo_atm_aal5_mux_pppoa_hdr_type) +#define PPPOE_SNAPLLC_HDR_LEN sizeof(apollo_atm_aal5_llcsnap_pppoe_hdr_type) +#define RBE_SNAPLLC_HDR_LEN sizeof(apollo_atm_aal5_llcsnap_rbe_hdr_type) + +/* End PTA PLUS ATM ENCAPSULATIONS */ +/****************************************************************/ + +#define LLCSNAP_PID_DOT3_NOFCS 0x0007 + +/* +** the SNAP header +*/ + +/* + * Note that some of these definitions are split + * up along certain word or half word boundaries + * to help expediate the TMC code. + */ +#define LLC_SNAP_HDR_DSAP 0xAA +#define LLC_SNAP_HDR_SSAP 0xAA +#define LLC_SNAP_HDR_CONTROL 0x03 +#define LLC_SNAP_HDR_OUI_0 0x00 +#define LLC_SNAP_HDR_OUI_1 0x00 +#define LLC_SNAP_HDR_OUI_2 0x00 +#define LLC_SNAP_HDR_OUI_2_CDP 0x0C + +#define LLC_SNAP_HDR_DSAP_SSAP 0xAAAA +#define LLC_SNAP_HDR_DSAP_SSAP_CTRL_OUI0 0xAAAA0300 +#define LLC_SNAP_HDR_CONTROL_OUI 0x03000000 +#define LLC_SNAP_HDR_OUI1_OUI2_CDP 0x000C2000 + + + +/* +** SRP +*/ + +/* + * The v2_gen_hdr is a 2-byte field that contains the following: + * + * [ ttl | ring_id | mode | priority | parity ] + * bits 8 1 3 3 1 + */ +typedef struct srp_hdr_type { + u16 v2_gen_hdr; + u8 dest_addr[6]; + u8 src_addr[6]; + u16 protocol; + u8 data[0]; +} srp_hdr_type; + +#define SRP_HDR_LEN 16 + +#define SRP_IB_CHANNEL_CONTROL 0x0000 +#define SRP_IB_CHANNEL_DATA_HI 0x0001 +#define SRP_IB_CHANNEL_DATA_LO 0x0002 + +#define SRP_RING_ID_MASK 0x0080 +#define SRP_RING_ID_BIT 7 + +#define SRP_MODE_BITS_MASK 0x0070 +#define SRP_MODE_BITS_SHIFT 4 +#define SRP_MODE_CONTROL_TOPOLOGY 4 +#define SRP_MODE_CONTROL_IPS 5 +#define SRP_MODE_DATA 7 + +#define SRP_PRIORITY_BITS_MASK 0x000E +#define SRP_PRIORITY_BITS_SHIFT 1 +#define SRP_PRIORITY_HIGH 7 +#define SRP_PRIORITY_PAK_PRIORITY 6 + +/* this is for the tmc code */ +#define SRP_INV_PRIORITY_BITS_MASK 0xFFF1 + +#define SRP_PROT_CONTROL_TOPOLOGY 0x2007 +#define SRP_PROT_CONTROL_IPS 0x2007 + +/* this is for the tmc code */ +#define SRP_TRUE 1 +#define SRP_FALSE 0 + +/* +** MPLS +*/ +#define MPLS_EOS_BIT 0x00000100 +#define MPLS_EOS_SHIFT 8 +#define MPLS_LABEL_SIZE 4 +#define MAX_MPLS_LABEL_STACK 6 +#define MPLS_LABEL_MASK 0xfffff000 +#define MPLS_LABEL_SHIFT 12 +#define MPLS_TTL_MASK 0x000000ff +#define MPLS_EXP_MASK 0x00000e00 +#define MPLS_EXP_SHIFT 9 +#define MPLS_EXP_TTL_MASK 0x00000eff + + + +typedef union _layer2 { + hdlc_hdr_type hdlc; + ppp_comp_hdr_type ppp; + ethernet_arpa_hdr_type eth_arpa; + ethernet_vlan_hdr_type eth_vlan; + ethernet_qinq_hdr_type eth_qinq; + ethernet_lacp_hdr_type eth_lacp; + ethernet_bpdu_hdr_type eth_bpdu; + ethernet_802p3_hdr_type eth_802p3; + ethernet_vlan_802p3_hdr_type eth_vlan_802p3; + ethernet_pppoe_arpa_hdr_type eth_pppoe_arpa; /* PTA plus */ + ethernet_pppoe_vlan_hdr_type eth_pppoe_vlan; /* PTA plus */ + ethernet_pppoe_qinq_hdr_type eth_pppoe_qinq; /* PTA plus */ + frame_relay_hdr_type frame_relay; + fr_snap_hdr_type fr_snap; + mlfr_hdr_type mlfr; + mlpofr_hdr_type mlpofr; + frf12_hdr_type frf12; + apollo_atm_generic_hdr_type atm_generic; + apollo_atm_aal5_snap_hdr_type atm_aal5_snap; + apollo_atm_aal5_snap_hdr1_type atm_aal5_snap1; + apollo_atm_aal5_clns_hdr_type atm_aal5_clns; + apollo_atm_aal5_ilmi_hdr_type atm_aal5_ilmi; + apollo_atm_aal5_mux_hdr_type atm_aal5_mux; + apollo_atm_oam_f4_hdr_type atm_oam_f4; + apollo_atm_oam_f5_hdr_type atm_oam_f5; + apollo_atm_aal5_llcsnap_rbe_hdr_type atm_aal5_rbe_snapllc; /* PTA plus */ + apollo_atm_aal5_llcsnap_pppoe_hdr_type atm_aal5_pppoe_snapllc; /* PTA plus */ + apollo_atm_aal5_mux_pppoa_hdr_type atm_aal5_pppoa_mux; /* PTA plus */ + apollo_atm_aal5_llcsnap_pppoa_hdr_type atm_aal5_pppoa_snapllc; /* PTA plus */ + apollo_atm_aal5_mux_mlpoa_hdr_type mlpoa_generic; + apollo_atm_aal5_llcsnap_mlpoa_hdr_type mlpoa_snapllc; + srp_hdr_type srp; +} layer2_t; + +/* + * Define the Common OAM cell format - F4 & F5 cells + * For F4 cells: + * VPI == User VPI + * VCI == (3 == Segment), (4 == End-to-End) + * + * For F5 cells: + * VPI == User VPI + * VCI == User VCI + * PT == (100 == Segment, 101 == End-to-End) + * + * OAM Cell Type & Function Type: + * + * OAM_TYPE = (0001 == Fault management) + * OAM_FUNC == (0000 == AIS, 0001 == RDI, 0100 == CC, + * 1000 == loopback) + * + * OAM_TYPE = (0010 == Performance management) + * OAM_FUNC == (0000 == Forward Monitoring(FM), + * 0001 == Backward monitoring(BR), + * 0010 == Monitoring & reporting (FM+BR)) + * + * OAM_TYPE = (1000 == Activation/Deactivation) + * OAM_FUNC == (0000 == Performance Monitoring, + * 0001 == Continuity Check) + * + * OAM_TYPE = (1111 == Sytem Management) + * OAM_FUNC == (0001 == Security - non-real-time, + * 0010 == Security - real-time) + * + */ +#define ATM_OAM_FAULT_MGMT 0x1 /* OAM Fault mgmt. code */ +#define ATM_OAM_PRFRM_MGMT 0x2 /* performance mgmt code */ +#define ATM_OAM_ACT_DEACT 0x8 /* OAM Activation/Deactivation + code */ +#define ATM_OAM_SYSTEM_MGMT 0xF /* System Management code */ + +#define ATM_OAM_AIS_FUNC 0x0 /* AIS function type */ +#define ATM_OAM_RDI_FUNC 0x1 /* RDI function type */ +#define ATM_OAM_CC_FUNC 0x4 /* OAM CC FM function code */ +#define ATM_OAM_LOOP_FUNC 0x8 /* Loopback function type */ + +#define ATM_OAM_F5_SEGMENT 0x4 /* Segment function */ +#define ATM_OAM_F5_ENDTOEND 0x5 /* End-to-End function */ +#define ATM_OAM_F4_SEGMENT 0x3 /* Segment function */ +#define ATM_OAM_F4_ENDTOEND 0x4 /* End-to-End function */ +#define ATM_OAM_F4_PTI_ZERO 0x0 /* PTI=0 for F4 OAM */ + +typedef struct atm_oam_hdr_t_ { + unsigned oam_gfc:4; /* GFC */ + unsigned oam_vpi:8; /* VPI */ + unsigned oam_vci_ms:4; /* VCI (Most Significant Bits) */ + + unsigned oam_vci_ls:12; /* VCI (Least Significant Bits) */ + unsigned oam_pt:3; /* Payload Type */ + unsigned oam_clp:1; /* Cell Loss Priority */ + u8 data[0]; +} atm_oam_hdr_t; + +typedef struct atm_oam_type_func_t_ { + u8 oam_type:4; + u8 oam_func:4; + u8 data[0]; +} atm_oam_type_func_t; + +/* +** IP Version 4 header +*/ + +/* + * version_hdr_len_words [7-4] IP Header Version + * [3-0] IP Header Length in 32-bit words + * tos Type of Service + * total_len_bytes Total IP datagram length in bytes + * (including IP header) + * identification Unique fragmentation identifier + * frag_flags_offset [15-13] Fragmentation flags + * [12-0] Fragmentation Offset + * ttl Time To Live + * protocol_id Protocol Identifier + * checksum 16-bit 1's complement IP Header checksum + * src_addr IP Source Address + * dest_addr IP Destination Address + */ +typedef struct ipv4_header { + u8 version_hdr_len_words; + u8 tos; + u16 total_len_bytes; + u16 identification; + u16 frag_flags_offset; + u8 ttl; + u8 protocol; + u16 checksum; + u32 src_addr; + u32 dest_addr; + u8 data[0]; +} ipv4_header; + +/*OPTIONS PACKET TYPE + * +-+-+-+-+-+-+-+-+ + * |C| CL| OP | + * +-+-+-+-+-+-+-+-+ + */ +typedef struct ipv4_options { + u8 copy :1 ; + u8 op_class :2 ; + u8 option :5 ; + u8 pad ; +}ipv4_options; + +#define LOOSE_SOURCE_ROUTE 131 +#define STRICT_SOURCE_ROUTE 137 +#define IPV4_NO_OPTIONS_HDR_LEN (sizeof(ipv4_header)) +#define IPV4_VERSION 4 +#define IPV4_HEADER_LENGTH_WORDS 5 +#define IPV4_VERSION_HDR_LEN_FIELD ((u8) 0x45) +#define IPV4_HEADER_LENGTH_WORDS 5 +#define IPV4_MIN_HEADER_LENGTH_BYTES 20 +#define IP_HDR_LEN sizeof(ipv4_header) +#define IPV4_VERSION_VALUE_SHIFT 4 + +#define IPV4_FRAG_OFFSET_MASK (0x1fff) +#define IPV4_FRAG_MF_MASK (0x2000) +#define IPV4_FRAG_MF_SHIFT (13) + +/* 0.0.0.0 */ +#define IP_BOOTP_SOURCE_ADDRESS 0 +/* 255.255.255.255 */ +#define IP_LIMITED_BROADCAST_ADDRESS 0xFFFFFFFF + +/* + * IPv4 header - version & length fields + */ +#define IP_VER_LEN 0x45 +#define IP_VER 0x4 +#define IP_MIN_LEN 0x5 +#define IP_VER_MASK 0xf0 +#define IP_LEN_MASK 0x0f + +/* + * IPv4 header - TOS field + */ +#define PS_IP_TOS_MASK 0xff +#define IP_PRECEDENCE_SHIFT 5 /* shift value up to precedence bits */ +#define IP_DSCP_SHIFT 2 /* shift value up to dscp bits */ + +#define IP_TOS_PRECEDENCE 0xe0 /* mask of precedence in tos byte */ +#define IP_TOS_NO_PRECEDENCE 0x1f +#define IP_TOS_LOW_DELAY 8 /* values must be shifted 1 bit */ +#define IP_TOS_HIGH_TPUT 4 /* before using */ +#define IP_TOS_HIGH_RELY 2 +#define IP_TOS_LOW_COST 1 +#define IP_TOS_NORMAL 0 +#define IP_TOS_MASK 0x1e /* mask of tos in tos byte */ +#define IP_TOS_MBZ_MASK 0x01 /* mask for MZB bit in tos byte */ +#define IP_TOS_DSCP 0xfc /* mask for dscp in tos byte */ +#define IP_TOS_NO_DSCP 0x03 + +#define IP_TOS_METRIC_TYPES 8 +#define IP_TOS_SHIFT 1 + +#define IP_TOS_PRECEDENCE_MASK (IP_TOS_PRECEDENCE | IP_TOS_MASK) + +/* + * IP TOS Precedence values (High order 3 bits) + */ +#define TOS_PREC_NET_CONTROL 0xe0 +#define TOS_PREC_INET_CONTROL 0xc0 +#define TOS_PREC_CRIT_ECP 0xa0 +#define TOS_PREC_FLASH_OVER 0x80 +#define TOS_PREC_FLASH 0x60 +#define TOS_PREC_IMMEDIATE 0x40 +#define TOS_PREC_PRIORITY 0x20 +#define TOS_PREC_ROUTINE 0x00 +#define TOS_PREC_ILLEGAL 0xff /* invalid precedence value */ + +#define TOS_PREC_NET_CONTROL_NUM 7 +#define TOS_PREC_INET_CONTROL_NUM 6 +#define TOS_PREC_CRIT_ECP_NUM 5 +#define TOS_PREC_FLASH_OVER_NUM 4 +#define TOS_PREC_FLASH_NUM 3 +#define TOS_PREC_IMMEDIATE_NUM 2 +#define TOS_PREC_PRIORITY_NUM 1 +#define TOS_PREC_ROUTINE_NUM 0 + + + +/* + * IPv4 header - flags and fragment offset fields + */ +#define IP_FRAG_OFFSET_MASK 0x1fff + + +#define IP_FRAG_MORE_MASK 0x2000 +#define IP_FRAG_DF_MASK 0x4000 +#define IP_FRAG_UNDEF_MASK 0x8000 +#define IP_FRAG_NO_DF_SET 0x0000 + +/* bit definitions for fragment flags */ +#define IP_FRAG_MORE_BIT 13 +#define IP_FRAG_DF_BIT 14 +#define IP_FRAG_UNDEF_BIT 15 + +/* + * IPv4 header - TTL field + */ +#define TTL_DEFAULT 255 +#define TTL_1 1 +#define TTL_2 2 +#define TTL_255 255 + + +/* + * IPv4 header - protocol field + * + * ICMP_PROT 1 ICMP + * IGMP_PROT 2 group management + * GGP_PROT 3 GGP + * IPINIP_PROT 4 IPv4 in IPv4 encapsulation + * TCP_PROT 6 TCP + * EGP_PROT 8 EGP + * IGRP_PROT 9 IGRP + * UDP_PROT 17 UDP + * HMP_PROT 20 HMP + * RDP_PROT 27 RDP + * IPV6_INIP_PROT 41 IPV6 in IPv4 encapsulation + * RSVP_PROT 46 RSVP + * GRE_PROT 47 GRE + * ESP_PROT 50 ESP + * AHP_PROT 51 AHP + * SDNS0_PROT 53 SNDS + * NHRP_PROT 54 NHRP + * SDNS1_PROT 55 SDNS1 + * HELLO_PROT 63 HELLO + * ND_PROT 77 ND + * EONIP_PROT 80 CLNS over IP + * VINES_PROT 83 Banyan Vines + * NEWIGRP_PROT 88 IGRP + * OSPF_PROT 89 OSPF + * FST_RSRB_PROT 90 RSRB + * FST_DLSW_PROT 91 DLSW + * NOSIP_PROT 94 KA9Q/NOS compatible IP over IP + * PIM_PROT 103 PIMv2 + * PCP_PROT 108 PCP + * PGM_PROT 113 PGM + * MAX_PROT 113 maximum protocol number in the above list, + * used in creating case registry + */ +#define ICMP_PROT 1 +#define IGMP_PROT 2 +#define GGP_PROT 3 +#define IPINIP_PROT 4 +#define TCP_PROT 6 +#define EGP_PROT 8 +#define IGRP_PROT 9 +#define UDP_PROT 17 +#define HMP_PROT 20 +#define RDP_PROT 27 +#define IPV6_INIP_PROT 41 +#define RSVP_PROT 46 +#define GRE_PROT 47 +#define ESP_PROT 50 +#define AHP_PROT 51 +#define SDNS0_PROT 53 +#define NHRP_PROT 54 +#define SDNS1_PROT 55 +#define HELLO_PROT 63 +#define ND_PROT 77 +#define EONIP_PROT 80 +#define VINES_PROT 83 +#define NEWIGRP_PROT 88 +#define OSPF_PROT 89 +#define FST_RSRB_PROT 90 +#define FST_DLSW_PROT 91 +#define NOSIP_PROT 94 +#define PIM_PROT 103 +#define PCP_PROT 108 +#define PGM_PROT 113 +#define MAX_PROT 113 + +/*Well Known Application ports */ +#define FTP_PORT 21 /* For control connection */ +/* + * TCP header + */ +typedef struct tcp_hdr_type { + u16 src_port; + u16 dest_port; + u32 seq_num; + u32 ack_num; + u8 hdr_len; + u8 flags; + u16 window_size; + u16 tcp_checksum; + u16 urgent_pointer; + u8 option_data[0]; +} tcp_hdr_type; + +#define TCP_FLAG_FIN 0x01 +#define TCP_FLAG_SYN 0x02 +#define TCP_FLAG_RST 0x04 +#define TCP_FLAG_PUSH 0x08 +#define TCP_FLAG_ACK 0x10 +#define TCP_FLAG_URG 0x20 +#define TCP_FLAG_ECE 0x40 +#define TCP_FLAG_CWR 0x80 + +/* + * TCP Option + */ +typedef struct tcp_option_s { + u8 kind; + u8 length; + u8 data[0]; +} tcp_option_t; + +#define TCP_END_OPTIONS_LIST 0 +#define TCP_OPTION_NOP 1 +#define TCP_OPTION_MSS 2 +#define TCP_OPTION_WINDOW_SCALE 3 +#define TCP_OPTION_SACK_PERMITTED 4 +#define TCP_OPTION_SACK_DATA 5 +#define TCP_OPTION_ECHO 6 +#define TCP_OPTION_ECHO_REPLY 7 +#define TCP_OPTION_TSOPT 8 +/* + 9 2 Partial Order Connection Permitted. RFC 1693 + 10 3 Partial Order Service Profile. RFC 1693 + 11 6 CC, Connection Count. RFC 1644 + 12 6 CC.NEW RFC 1644 + 13 6 CC.ECHO RFC 1644 + 14 3 TCP Alternate Checksum Request. RFC 1146 + 15 Variable. TCP Alternate Checksum Data. RFC 1146 + 16 Skeeter. + 17 Bubba. + 18 3 Trailer Checksum Option. +*/ +#define TCP_OPTION_MD5_SIGNATURE 19 +/* + 20 SCPS Capabilities. + 21 Selective Negative Acknowledgements. + 22 Record Boundaries. + 23 Corruption experienced. + 24 SNAP. + 25 + 26 TCP Compression Filter. +*/ +#define TCP_OPTION_QUICK_START 27 + +#define TCP_OPTION_NUM_MAX 27 + +#ifdef TARGET_CISCO +#define tcp_printf(format_str, params...) //printf(format_str, ## params) +#else +#define tcp_printf(format_str, params...) printf(format_str, ## params) +#endif + +typedef struct udp_hdr_type { + u16 src_port; + u16 dest_port; + u16 udp_length; + u16 udp_checksum; +} udp_hdr_type_t; + +#define TYPE_IPV6 0x86dd +#define TYPE_IPV4 0x0800 + +/* + * version_trafficclass_flowlabel [31:28] IP Header Version, + [27:20] traffic_class, + [19:0] flow_label[20] + * payload_length Length of packet in bytes excluding header size(s) + * next_header Identifies the type of header following the IPv6 header + * hop_limit Decremented by 1 by each forwarding node, packet discarded when zero + * src_addr IPv6 Source Address + * dst_addr IPv6 Destination Address + */ +typedef struct ipv6_header { + u32 version_trafficclass_flowlabel; + u16 payload_length; + u8 next_header; + u8 hop_limit; + u32 src_addr[4]; + u32 dst_addr[4]; + u8 data[0]; +} ipv6_header_t; + +#define IPV6_HDR_LEN 40 +#define IPV6_HDR_LEN_WORDS 10 +#define IPV6_FLABLE_MASK 0x000FFFFF +#define IPV6_MIN_PATH_MTU (1280) + +#define IPV6_GET_IP_VER(ih) ((clib_net_to_host_u32((ih) \ + ->version_trafficclass_flowlabel) >> 28) & 0xf) +#define IPV6_GET_TOS(ih) ((clib_net_to_host_u32((ih) \ + ->version_trafficclass_flowlabel) >> 20) & 0xff) +#define IPV6_GET_FLOW_LABEL(ih) ((clib_net_to_host_u32((ih) \ + ->version_trafficclass_flowlabel)) & 0xfffff) + +#define IPV6_VERSION_VALUE (6) +#define IPV6_VERSION_VALUE_SHIFT (28) +#define IPV6_TRAFFIC_CLASS_VALUE_SHIFT (20) +#define IPV6_TRAFFIC_CLASS_VALUE_MASK (0xff) + +#define IPV6_PROTO_HOPOPTS 0 +#define IPV6_PROTO_TCP 6 +#define IPV6_PROTO_UDP 17 +#define IPV6_PROTO_IPV6 41 +#define IPV6_PROTO_ROUTING 43 +#define IPV6_PROTO_FRAGMENT 44 +#define IPV6_PROTO_DESTOPTS 60 +#define IPV6_PROTO_ESP 50 +#define IPV6_PROTO_AH 51 +#define IPV6_PROTO_ICMPV6 58 +#define IPV6_PROTO_NONE 59 + +/* standard v6 extension header are 2 tytes + * one byte next header + * one byte header length + */ + +typedef struct ipv6_frag_header { + u8 next_header; + u8 reserved; + u16 frag_offset_res_m; + u32 identification; +} ipv6_frag_header_t; + +#define IPV6_FRAG_HDR_LEN (sizeof(ipv6_frag_header_t)) + +#define IPV6_FRAG_OFFSET_MASK (0xFFF8) +#define IPV6_FRAG_OFFSET_SHIFT (3) +#define IPV6_FRAG_MORE_FRAG_MASK (0x0001) + +#define IPV6_TOS_SHIFT 20 +#define IPV6_TOS_SHIFT_HLF_WD 4 +#define IPV6_NEXT_HDR_SHIFT 8 + +typedef struct ipv6_routing_header { + u8 next_header; + u8 hdr_ext_len; + u8 routing_type; + u8 segments_left; + u8 data[0]; +} ipv6_routing_header_t; +#define IPV6_ROUTING_HDR_LEN (sizeof(ipv6_routing_header_t)) + +typedef struct ipv6_hop_header { + u8 next_header; + u8 hdr_ext_len; + u8 options[0]; +} ipv6_hop_header_t; +#define IPV6_HOP_LEN (sizeof(ipv6_hop_header_t)) + +typedef struct ipv6_dest_opt_header { + u8 next_header; + u8 hdr_ext_len; + u8 options[0]; +} ipv6_dest_opt_header_t; +#define IPV6_DESTOPT_LEN (sizeof(ipv6_dest_opt_header_t)) + + +/* Definition of ICMP header */ +typedef struct icmp_v4_s { + u8 type; + u8 code; + u16 checksum; + u16 identifier; + u16 sequence; +} icmp_v4_t; + +#define ICMPV4_HDR_SIZE (sizeof(icmp_v4_t)) +#define ICMPV4_ECHOREPLY 0 /* Type: echo reply */ +#define ICMPV4_ECHO 8 /* Type: echo request */ + +#define ICMPV4_UNREACHABLE 3 /* Type: destination unreachable */ +#define ICMPV4_UNRNET 0 /* Code: Net unreachable */ +#define ICMPV4_UNRHOST 1 /* Code: host unreachable */ +#define ICMPV4_UNRPROT 2 /* Code: protocol unreachable */ +#define ICMPV4_UNRPORT 3 /* Code: port unreachable */ +#define ICMPV4_UNRFRAG 4 /* Code: frag req DF set */ +#define ICMPV4_UNRADMIN 13 /* Code: administratively prohib. */ +#define ICMPV4_SOURCEROUTE_FAILED 5 /* Code: administratively prohib. */ + +#define ICMPV4_SRC_ROUTE_FAIL 5 /* Code: Source Route Failed */ +#define ICMPV4_NO_ROUTE_DESTN_8 8 /* Code: No Route to Destn */ +#define ICMPV4_NO_ROUTE_DESTN_11 11 /* Code: No Route to Destn */ +#define ICMPV4_NO_ROUTE_DESTN_12 12 /* Code: No Route to Destn */ + +#define ICMPV4_ADMIN_PROH_9 9 /* Code: Administratively Prohibited */ +#define ICMPV4_ADMIN_PROH_10 10 /* Code: Administratively Prohibited */ +#define ICMPV4_PREC_CUTOFF 15 /* Code: Precedence Cutoff */ + + +#define ICMPV4_TIMEEXCEEDED 11 /* Type: time exceeded */ +#define ICMPV4_TIMTTL 0 /* Code: ttl in transit code */ + +#define ICMPV4_PARAMETER_PROBLEM 12 /* Type: Parameter Problem */ +#define ICMPV4_PARAM_ERROR 0 /* Code: Pointer to Error */ +#define ICMPV4_MISSING_OPTION_CODE 1 /* Code: Mission option */ +#define ICMPV4_PARAM_BAD_LEN 2 /* Code: Bad Length */ + +#define ICMPV4_CONVERSION_ERROR 31 +#define ICMPV4_SOURCE_QUENCH 4 +#define ICMPV4_REDIRECT 5 +#define ICMPV4_TIMESTAMP 13 +#define ICMPV4_TIMESTAMP_REPLY 14 +#define ICMPV4_INFO_REQUEST 15 +#define ICMPV4_INFO_REPLY 16 +#define ICMPV4_ADDR_MASK_REQUEST 17 +#define ICMPV4_ADDR_MASK_REPLY 18 + +typedef struct icmp_v6_s { + + u8 type; + u8 code; + u16 checksum; + + u32 data[0]; +} icmp_v6_t; + +typedef struct pseudo_v6_header { + u32 src_addr[4]; + u32 dst_addr[4]; + u16 payload_length; + u16 next_header; +} pseudo_v6_header_t; + + +#define ICMPV6_ECHO 128 +#define ICMPV6_ECHO_REPLY 129 +#define ICMPV6_PKT_TOO_BIG 2 +#define ICMPV6_TIMEEXCEEDED 3 +#define ICMPV6_TIMTTL 0 +#define ICMPV6_PARAMETER_PROBLEM 4 +#define ICMPV6_UNREACHABLE 1 +#define ICMPV6_NEIGHBOR_SOLICITAION 135 +#define ICMPV6_NEIGHBOR_ADVT 136 +/* ICMP V6 generated packet size */ +#define ICMPV6_ERR_SIZE 48 +#define ICMPV6_HDR_SIZE (sizeof(icmp_v6_t) +sizeof(u32)) + +/* Code for Type 1 */ +#define ICMPV6_UNRDESTN 0 /* Code: No route to Desnt */ +#define ICMPV6_ADM_PROH 1 /* Code: Adminitrative Prohibited */ +#define ICMPV6_SRC_ADD_SCOPE 2 /* Code: Source Address beyond scope */ +#define ICMPV6_UNRHOST 3 /* Code: Host Unreachable */ +#define ICMPV6_UNRPORT 4 /* Code: Port UnReachable */ + +#define ICMPV6_UNRPROT 1 /* type 4 - Code: No route to Desnt */ + +#define ICMPV6_PTB_CODE 0 /* Code: For PTB */ +#define ICMPV6_PARAM_CODE 0 /* Code: For Parameter Problem */ +#define ICMPV6_UNREC_HDR 1 /* Code: For Parameter Problem */ +#define ICMPV6_SRC_ADD_FAIL 5 /* Code: For Source address failed */ +#define ICMP_ECHO_REPLY_CODE 0 +#define DEFAULT_TTL_HOPLIMIT_VAL 64 + +typedef struct pptp_hdr_type { + + u16 flags_ver; + u16 proto_type; /* PPP = 0x880B */ + u16 payload_len; + u16 call_id; + u32 seq_no; + u32 ack_no; + +} pptp_hdr_type_t; + +/* + * NAME + * + * tcp_findoption + * + * SYNOPSIS + * u8* tcp_findoption (tcp_hdr_t *tcp, uchar option) + * + * PARAMETERS + * tcp - pointer to TCP header + * option - TCP option + * + * RETURNS + * This function returns a pointer to the option found, + * otherwise returns null. + * + * + * DESCRIPTION + * This function searches the option and returns a pointer to the + * matched option field containing option kind/length/data sub-fields. + * + */ +static inline u8* tcp_findoption (tcp_hdr_type *tcp, u8 option) +{ + u8*data; + u8 len, optlen; + + data = tcp->option_data; + len = ((tcp->hdr_len>>4) << 2) - sizeof(tcp_hdr_type); + +#define MAXTCPOPTIONBYTES 40 +#define MINTCPOPTIONLENGTH 2 + + while (len) { + if (PREDICT_TRUE(option == data[0])) { + return (data); + } else { + switch (data[0]) { + case TCP_END_OPTIONS_LIST: + return (NULL); + case TCP_OPTION_NOP: + len -= 1; + data += 1; + break; + default: + /* Sanity check the length. */ + optlen = data[1]; + if ((optlen < MINTCPOPTIONLENGTH) || + (optlen > MAXTCPOPTIONBYTES) || + (optlen > len)) { + return (NULL); + } + len -= optlen; + data += optlen; + break; + } + } + } + + return (NULL); +} + + +static inline u32 crc_calc (ipv4_header *ipv4) +{ + u16 *ipv4_word_ptr = (u16 *) ipv4; + u32 crc32; + /* + * Add all fields except the checksum field + */ + crc32 = (u32)clib_net_to_host_u16(*ipv4_word_ptr) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 1)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 2)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 3)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 4)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 6)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 7)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 8)) + + (u32)clib_net_to_host_u16(*(ipv4_word_ptr + 9)); + + /* Add in the carry of the original sum */ + crc32 = (crc32 & 0xFFFF) + (crc32 >> 16); + /* Add in the carry of the final sum */ + crc32 = (crc32 & 0xFFFF) + (crc32 >> 16); + + return crc32; +} + +#endif /* __TCP_HEADER_DEFINITIONS_H__ */ |