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openflow build environment setup

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CGH0S7
2025-11-11 16:45:43 +08:00
parent be0a7ad9b3
commit 50ecb9a23f
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openflow/include/clicknet/ether.h Normal file
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/* -*- mode: c; c-basic-offset: 4 -*- */
#ifndef CLICKNET_ETHER_H
#define CLICKNET_ETHER_H
/*
* <clicknet/ether.h> -- Ethernet and ARP headers, based on one of the BSDs.
*
* Relevant RFCs include:
* RFC826 Ethernet Address Resolution Protocol: or, Converting Network
* Protocol Addresses to 48.bit Ethernet Address for Transmission
* on Ethernet Hardware
* RFC894 Standard for the transmission of IP datagrams over Ethernet
* networks
* Also see the relevant IEEE 802 standards.
*/
struct click_ether {
uint8_t ether_dhost[6]; /* 0-5 Ethernet destination address */
uint8_t ether_shost[6]; /* 6-11 Ethernet source address */
uint16_t ether_type; /* 12-13 Ethernet protocol */
} CLICK_SIZE_PACKED_ATTRIBUTE;
#define ETHERTYPE_IP 0x0800
#define ETHERTYPE_ARP 0x0806
#define ETHERTYPE_TRAIL 0x1000
#define ETHERTYPE_8021Q 0x8100
#define ETHERTYPE_IP6 0x86DD
#define ETHERTYPE_MACCONTROL 0x8808
#define ETHERTYPE_PPPOE_DISC 0x8863
#define ETHERTYPE_PPPOE_SESSION 0x8864
#define ETHERTYPE_GRID 0x7fff /* wvlan_cs driver won't transmit frames with high bit of protocol number set */
struct click_arp { /* Offsets relative to ARP (Ethernet) header */
uint16_t ar_hrd; /* 0-1 (14-15) hardware address format */
#define ARPHRD_ETHER 1 /* Ethernet 10Mbps */
#define ARPHRD_IEEE802 6 /* token ring */
#define ARPHRD_ARCNET 7 /* Arcnet */
#define ARPHRD_FRELAY 15 /* frame relay */
#define ARPHRD_STRIP 23 /* Ricochet Starmode Radio */
#define ARPHRD_IEEE1394 24 /* IEEE 1394 (FireWire) */
#define ARPHRD_80211 801 /* IEEE 802.11 (wifi) */
uint16_t ar_pro; /* 2-3 (16-17) protocol address format */
uint8_t ar_hln; /* 4 (18) hardware address length */
uint8_t ar_pln; /* 5 (19) protocol address length */
uint16_t ar_op; /* 6-7 (20-21) opcode (command) */
#define ARPOP_REQUEST 1 /* ARP request */
#define ARPOP_REPLY 2 /* ARP reply */
#define ARPOP_REVREQUEST 3 /* reverse request: hw->proto */
#define ARPOP_REVREPLY 4 /* reverse reply */
#define ARPOP_INVREQUEST 8 /* peer identification req */
#define ARPOP_INVREPLY 9 /* peer identification reply */
};
struct click_ether_arp {
struct click_arp ea_hdr; /* 0-7 (14-21) fixed-size ARP header */
uint8_t arp_sha[6]; /* 8-13 (22-27) sender hardware address */
uint8_t arp_spa[4]; /* 14-17 (28-31) sender protocol address */
uint8_t arp_tha[6]; /* 18-23 (32-37) target hardware address */
uint8_t arp_tpa[4]; /* 24-27 (38-41) target protocol address */
};
/* Ethernet with VLAN (802.1q) */
struct click_ether_vlan {
uint8_t ether_dhost[6]; /* 0-5 Ethernet source address */
uint8_t ether_shost[6]; /* 6-11 Ethernet destination address */
uint16_t ether_vlan_proto; /* 12-13 == ETHERTYPE_8021Q */
uint16_t ether_vlan_tci; /* 14-15 tag control information */
uint16_t ether_vlan_encap_proto; /* 16-17 Ethernet protocol */
} CLICK_SIZE_PACKED_ATTRIBUTE;
/* Ethernet MAC control (802.3) */
struct click_ether_macctl {
uint16_t ether_macctl_opcode;
uint16_t ether_macctl_param;
uint8_t ether_macctl_reserved[42];
};
#define ETHER_MACCTL_OP_PAUSE 0x0001
#define ND_SOL 0x0087 /* Neighborhood Solicitation Message Type */
#define ND_ADV 0x0088 /* Neighborhood Advertisement Message Type */
/* define structure of Neighborhood Solicitation Message */
struct click_nd_sol {
uint8_t type;
uint8_t code;
uint16_t checksum;
uint32_t reserved;
uint8_t nd_tpa[16];
uint8_t option_type; /*option type: 1 (source link-layer add) */
uint8_t option_length; /*option length: 1 (in units of 8 octets) */
uint8_t nd_sha[6]; /*source link-layer address */
};
/* define structure of Neighborhood Advertisement Message -reply to multicast neighborhood solitation message */
struct click_nd_adv {
uint8_t type;
uint8_t code;
uint16_t checksum;
uint8_t flags; /* bit 1: sender_is_router
bit 2: solicited
bit 3: override
all other bits should be zero */
uint8_t reserved[3];
uint8_t nd_tpa[16];
uint8_t option_type; /* option type: 2 (target link-layer add) */
uint8_t option_length; /* option length: 1 (in units of 8 octets) */
uint8_t nd_tha[6]; /* source link-layer address */
};
/* define structure of Neighborhood Advertisement Message - reply to unicast neighborhood solitation message */
struct click_nd_adv2 {
uint8_t type;
uint8_t code;
uint16_t checksum;
uint8_t flags; /* bit 1: sender_is_router
bit 2: solicited
bit 3: override
all other bits should be zero */
uint8_t reserved[3];
uint8_t nd_tpa[16];
};
#endif