/*
*-----------------------------------------------------------------------------
*
* 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__ */