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Diffstat (limited to 'qemu/roms/u-boot/include/net.h')
| -rw-r--r-- | qemu/roms/u-boot/include/net.h | 705 |
1 files changed, 0 insertions, 705 deletions
diff --git a/qemu/roms/u-boot/include/net.h b/qemu/roms/u-boot/include/net.h deleted file mode 100644 index 735b0b9d2..000000000 --- a/qemu/roms/u-boot/include/net.h +++ /dev/null @@ -1,705 +0,0 @@ -/* - * LiMon Monitor (LiMon) - Network. - * - * Copyright 1994 - 2000 Neil Russell. - * (See License) - * - * - * History - * 9/16/00 bor adapted to TQM823L/STK8xxL board, RARP/TFTP boot added - */ - -#ifndef __NET_H__ -#define __NET_H__ - -#if defined(CONFIG_8xx) -#include <commproc.h> -#endif /* CONFIG_8xx */ - -#include <asm/cache.h> -#include <asm/byteorder.h> /* for nton* / ntoh* stuff */ - -#define DEBUG_LL_STATE 0 /* Link local state machine changes */ -#define DEBUG_DEV_PKT 0 /* Packets or info directed to the device */ -#define DEBUG_NET_PKT 0 /* Packets on info on the network at large */ -#define DEBUG_INT_STATE 0 /* Internal network state changes */ - -/* - * The number of receive packet buffers, and the required packet buffer - * alignment in memory. - * - */ - -#ifdef CONFIG_SYS_RX_ETH_BUFFER -# define PKTBUFSRX CONFIG_SYS_RX_ETH_BUFFER -#else -# define PKTBUFSRX 4 -#endif - -#define PKTALIGN ARCH_DMA_MINALIGN - -/* IPv4 addresses are always 32 bits in size */ -typedef __be32 IPaddr_t; - - -/** - * An incoming packet handler. - * @param pkt pointer to the application packet - * @param dport destination UDP port - * @param sip source IP address - * @param sport source UDP port - * @param len packet length - */ -typedef void rxhand_f(uchar *pkt, unsigned dport, - IPaddr_t sip, unsigned sport, - unsigned len); - -/** - * An incoming ICMP packet handler. - * @param type ICMP type - * @param code ICMP code - * @param dport destination UDP port - * @param sip source IP address - * @param sport source UDP port - * @param pkt pointer to the ICMP packet data - * @param len packet length - */ -typedef void rxhand_icmp_f(unsigned type, unsigned code, unsigned dport, - IPaddr_t sip, unsigned sport, uchar *pkt, unsigned len); - -/* - * A timeout handler. Called after time interval has expired. - */ -typedef void thand_f(void); - -enum eth_state_t { - ETH_STATE_INIT, - ETH_STATE_PASSIVE, - ETH_STATE_ACTIVE -}; - -struct eth_device { - char name[16]; - unsigned char enetaddr[6]; - int iobase; - int state; - - int (*init) (struct eth_device *, bd_t *); - int (*send) (struct eth_device *, void *packet, int length); - int (*recv) (struct eth_device *); - void (*halt) (struct eth_device *); -#ifdef CONFIG_MCAST_TFTP - int (*mcast) (struct eth_device *, const u8 *enetaddr, u8 set); -#endif - int (*write_hwaddr) (struct eth_device *); - struct eth_device *next; - int index; - void *priv; -}; - -extern int eth_initialize(bd_t *bis); /* Initialize network subsystem */ -extern int eth_register(struct eth_device* dev);/* Register network device */ -extern int eth_unregister(struct eth_device *dev);/* Remove network device */ -extern void eth_try_another(int first_restart); /* Change the device */ -extern void eth_set_current(void); /* set nterface to ethcur var */ - -/* get the current device MAC */ -extern struct eth_device *eth_current; - -static inline __attribute__((always_inline)) -struct eth_device *eth_get_dev(void) -{ - return eth_current; -} -extern struct eth_device *eth_get_dev_by_name(const char *devname); -extern struct eth_device *eth_get_dev_by_index(int index); /* get dev @ index */ -extern int eth_get_dev_index(void); /* get the device index */ -extern void eth_parse_enetaddr(const char *addr, uchar *enetaddr); -extern int eth_getenv_enetaddr(char *name, uchar *enetaddr); -extern int eth_setenv_enetaddr(char *name, const uchar *enetaddr); - -/* - * Get the hardware address for an ethernet interface . - * Args: - * base_name - base name for device (normally "eth") - * index - device index number (0 for first) - * enetaddr - returns 6 byte hardware address - * Returns: - * Return true if the address is valid. - */ -extern int eth_getenv_enetaddr_by_index(const char *base_name, int index, - uchar *enetaddr); - -extern int usb_eth_initialize(bd_t *bi); -extern int eth_init(bd_t *bis); /* Initialize the device */ -extern int eth_send(void *packet, int length); /* Send a packet */ - -#ifdef CONFIG_API -extern int eth_receive(void *packet, int length); /* Receive a packet*/ -extern void (*push_packet)(void *packet, int length); -#endif -extern int eth_rx(void); /* Check for received packets */ -extern void eth_halt(void); /* stop SCC */ -extern char *eth_get_name(void); /* get name of current device */ - -/* Set active state */ -static inline __attribute__((always_inline)) int eth_init_state_only(bd_t *bis) -{ - eth_get_dev()->state = ETH_STATE_ACTIVE; - - return 0; -} -/* Set passive state */ -static inline __attribute__((always_inline)) void eth_halt_state_only(void) -{ - eth_get_dev()->state = ETH_STATE_PASSIVE; -} - -/* - * Set the hardware address for an ethernet interface based on 'eth%daddr' - * environment variable (or just 'ethaddr' if eth_number is 0). - * Args: - * base_name - base name for device (normally "eth") - * eth_number - value of %d (0 for first device of this type) - * Returns: - * 0 is success, non-zero is error status from driver. - */ -int eth_write_hwaddr(struct eth_device *dev, const char *base_name, - int eth_number); - -#ifdef CONFIG_MCAST_TFTP -int eth_mcast_join(IPaddr_t mcast_addr, u8 join); -u32 ether_crc(size_t len, unsigned char const *p); -#endif - - -/**********************************************************************/ -/* - * Protocol headers. - */ - -/* - * Ethernet header - */ - -struct ethernet_hdr { - uchar et_dest[6]; /* Destination node */ - uchar et_src[6]; /* Source node */ - ushort et_protlen; /* Protocol or length */ -}; - -/* Ethernet header size */ -#define ETHER_HDR_SIZE (sizeof(struct ethernet_hdr)) - -struct e802_hdr { - uchar et_dest[6]; /* Destination node */ - uchar et_src[6]; /* Source node */ - ushort et_protlen; /* Protocol or length */ - uchar et_dsap; /* 802 DSAP */ - uchar et_ssap; /* 802 SSAP */ - uchar et_ctl; /* 802 control */ - uchar et_snap1; /* SNAP */ - uchar et_snap2; - uchar et_snap3; - ushort et_prot; /* 802 protocol */ -}; - -/* 802 + SNAP + ethernet header size */ -#define E802_HDR_SIZE (sizeof(struct e802_hdr)) - -/* - * Virtual LAN Ethernet header - */ -struct vlan_ethernet_hdr { - uchar vet_dest[6]; /* Destination node */ - uchar vet_src[6]; /* Source node */ - ushort vet_vlan_type; /* PROT_VLAN */ - ushort vet_tag; /* TAG of VLAN */ - ushort vet_type; /* protocol type */ -}; - -/* VLAN Ethernet header size */ -#define VLAN_ETHER_HDR_SIZE (sizeof(struct vlan_ethernet_hdr)) - -#define PROT_IP 0x0800 /* IP protocol */ -#define PROT_ARP 0x0806 /* IP ARP protocol */ -#define PROT_RARP 0x8035 /* IP ARP protocol */ -#define PROT_VLAN 0x8100 /* IEEE 802.1q protocol */ - -#define IPPROTO_ICMP 1 /* Internet Control Message Protocol */ -#define IPPROTO_UDP 17 /* User Datagram Protocol */ - -/* - * Internet Protocol (IP) header. - */ -struct ip_hdr { - uchar ip_hl_v; /* header length and version */ - uchar ip_tos; /* type of service */ - ushort ip_len; /* total length */ - ushort ip_id; /* identification */ - ushort ip_off; /* fragment offset field */ - uchar ip_ttl; /* time to live */ - uchar ip_p; /* protocol */ - ushort ip_sum; /* checksum */ - IPaddr_t ip_src; /* Source IP address */ - IPaddr_t ip_dst; /* Destination IP address */ -}; - -#define IP_OFFS 0x1fff /* ip offset *= 8 */ -#define IP_FLAGS 0xe000 /* first 3 bits */ -#define IP_FLAGS_RES 0x8000 /* reserved */ -#define IP_FLAGS_DFRAG 0x4000 /* don't fragments */ -#define IP_FLAGS_MFRAG 0x2000 /* more fragments */ - -#define IP_HDR_SIZE (sizeof(struct ip_hdr)) - -/* - * Internet Protocol (IP) + UDP header. - */ -struct ip_udp_hdr { - uchar ip_hl_v; /* header length and version */ - uchar ip_tos; /* type of service */ - ushort ip_len; /* total length */ - ushort ip_id; /* identification */ - ushort ip_off; /* fragment offset field */ - uchar ip_ttl; /* time to live */ - uchar ip_p; /* protocol */ - ushort ip_sum; /* checksum */ - IPaddr_t ip_src; /* Source IP address */ - IPaddr_t ip_dst; /* Destination IP address */ - ushort udp_src; /* UDP source port */ - ushort udp_dst; /* UDP destination port */ - ushort udp_len; /* Length of UDP packet */ - ushort udp_xsum; /* Checksum */ -}; - -#define IP_UDP_HDR_SIZE (sizeof(struct ip_udp_hdr)) -#define UDP_HDR_SIZE (IP_UDP_HDR_SIZE - IP_HDR_SIZE) - -/* - * Address Resolution Protocol (ARP) header. - */ -struct arp_hdr { - ushort ar_hrd; /* Format of hardware address */ -# define ARP_ETHER 1 /* Ethernet hardware address */ - ushort ar_pro; /* Format of protocol address */ - uchar ar_hln; /* Length of hardware address */ -# define ARP_HLEN 6 - uchar ar_pln; /* Length of protocol address */ -# define ARP_PLEN 4 - ushort ar_op; /* Operation */ -# define ARPOP_REQUEST 1 /* Request to resolve address */ -# define ARPOP_REPLY 2 /* Response to previous request */ - -# define RARPOP_REQUEST 3 /* Request to resolve address */ -# define RARPOP_REPLY 4 /* Response to previous request */ - - /* - * The remaining fields are variable in size, according to - * the sizes above, and are defined as appropriate for - * specific hardware/protocol combinations. - */ - uchar ar_data[0]; -#define ar_sha ar_data[0] -#define ar_spa ar_data[ARP_HLEN] -#define ar_tha ar_data[ARP_HLEN + ARP_PLEN] -#define ar_tpa ar_data[ARP_HLEN + ARP_PLEN + ARP_HLEN] -#if 0 - uchar ar_sha[]; /* Sender hardware address */ - uchar ar_spa[]; /* Sender protocol address */ - uchar ar_tha[]; /* Target hardware address */ - uchar ar_tpa[]; /* Target protocol address */ -#endif /* 0 */ -}; - -#define ARP_HDR_SIZE (8+20) /* Size assuming ethernet */ - -/* - * ICMP stuff (just enough to handle (host) redirect messages) - */ -#define ICMP_ECHO_REPLY 0 /* Echo reply */ -#define ICMP_NOT_REACH 3 /* Detination unreachable */ -#define ICMP_REDIRECT 5 /* Redirect (change route) */ -#define ICMP_ECHO_REQUEST 8 /* Echo request */ - -/* Codes for REDIRECT. */ -#define ICMP_REDIR_NET 0 /* Redirect Net */ -#define ICMP_REDIR_HOST 1 /* Redirect Host */ - -/* Codes for NOT_REACH */ -#define ICMP_NOT_REACH_PORT 3 /* Port unreachable */ - -struct icmp_hdr { - uchar type; - uchar code; - ushort checksum; - union { - struct { - ushort id; - ushort sequence; - } echo; - ulong gateway; - struct { - ushort unused; - ushort mtu; - } frag; - uchar data[0]; - } un; -}; - -#define ICMP_HDR_SIZE (sizeof(struct icmp_hdr)) -#define IP_ICMP_HDR_SIZE (IP_HDR_SIZE + ICMP_HDR_SIZE) - -/* - * Maximum packet size; used to allocate packet storage. - * TFTP packets can be 524 bytes + IP header + ethernet header. - * Lets be conservative, and go for 38 * 16. (Must also be - * a multiple of 32 bytes). - */ -/* - * AS.HARNOIS : Better to set PKTSIZE to maximum size because - * traffic type is not always controlled - * maximum packet size = 1518 - * maximum packet size and multiple of 32 bytes = 1536 - */ -#define PKTSIZE 1518 -#define PKTSIZE_ALIGN 1536 -/*#define PKTSIZE 608*/ - -/* - * Maximum receive ring size; that is, the number of packets - * we can buffer before overflow happens. Basically, this just - * needs to be enough to prevent a packet being discarded while - * we are processing the previous one. - */ -#define RINGSZ 4 -#define RINGSZ_LOG2 2 - -/**********************************************************************/ -/* - * Globals. - * - * Note: - * - * All variables of type IPaddr_t are stored in NETWORK byte order - * (big endian). - */ - -/* net.c */ -/** BOOTP EXTENTIONS **/ -extern IPaddr_t NetOurGatewayIP; /* Our gateway IP address */ -extern IPaddr_t NetOurSubnetMask; /* Our subnet mask (0 = unknown) */ -extern IPaddr_t NetOurDNSIP; /* Our Domain Name Server (0 = unknown) */ -#if defined(CONFIG_BOOTP_DNS2) -extern IPaddr_t NetOurDNS2IP; /* Our 2nd Domain Name Server (0 = unknown) */ -#endif -extern char NetOurNISDomain[32]; /* Our NIS domain */ -extern char NetOurHostName[32]; /* Our hostname */ -extern char NetOurRootPath[64]; /* Our root path */ -extern ushort NetBootFileSize; /* Our boot file size in blocks */ -/** END OF BOOTP EXTENTIONS **/ -extern ulong NetBootFileXferSize; /* size of bootfile in bytes */ -extern uchar NetOurEther[6]; /* Our ethernet address */ -extern uchar NetServerEther[6]; /* Boot server enet address */ -extern IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */ -extern IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */ -extern uchar *NetTxPacket; /* THE transmit packet */ -extern uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets */ -extern uchar *NetRxPacket; /* Current receive packet */ -extern int NetRxPacketLen; /* Current rx packet length */ -extern unsigned NetIPID; /* IP ID (counting) */ -extern uchar NetBcastAddr[6]; /* Ethernet boardcast address */ -extern uchar NetEtherNullAddr[6]; - -#define VLAN_NONE 4095 /* untagged */ -#define VLAN_IDMASK 0x0fff /* mask of valid vlan id */ -extern ushort NetOurVLAN; /* Our VLAN */ -extern ushort NetOurNativeVLAN; /* Our Native VLAN */ - -extern int NetRestartWrap; /* Tried all network devices */ - -enum proto_t { - BOOTP, RARP, ARP, TFTPGET, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP, - TFTPSRV, TFTPPUT, LINKLOCAL -}; - -/* from net/net.c */ -extern char BootFile[128]; /* Boot File name */ - -#if defined(CONFIG_CMD_DNS) -extern char *NetDNSResolve; /* The host to resolve */ -extern char *NetDNSenvvar; /* the env var to put the ip into */ -#endif - -#if defined(CONFIG_CMD_PING) -extern IPaddr_t NetPingIP; /* the ip address to ping */ -#endif - -#if defined(CONFIG_CMD_CDP) -/* when CDP completes these hold the return values */ -extern ushort CDPNativeVLAN; /* CDP returned native VLAN */ -extern ushort CDPApplianceVLAN; /* CDP returned appliance VLAN */ - -/* - * Check for a CDP packet by examining the received MAC address field - */ -static inline int is_cdp_packet(const uchar *et_addr) -{ - extern const uchar NetCDPAddr[6]; - - return memcmp(et_addr, NetCDPAddr, 6) == 0; -} -#endif - -#if defined(CONFIG_CMD_SNTP) -extern IPaddr_t NetNtpServerIP; /* the ip address to NTP */ -extern int NetTimeOffset; /* offset time from UTC */ -#endif - -#if defined(CONFIG_MCAST_TFTP) -extern IPaddr_t Mcast_addr; -#endif - -/* Initialize the network adapter */ -extern void net_init(void); -extern int NetLoop(enum proto_t); - -/* Shutdown adapters and cleanup */ -extern void NetStop(void); - -/* Load failed. Start again. */ -extern void NetStartAgain(void); - -/* Get size of the ethernet header when we send */ -extern int NetEthHdrSize(void); - -/* Set ethernet header; returns the size of the header */ -extern int NetSetEther(uchar *, uchar *, uint); -extern int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot); - -/* Set IP header */ -extern void net_set_ip_header(uchar *pkt, IPaddr_t dest, IPaddr_t source); -extern void net_set_udp_header(uchar *pkt, IPaddr_t dest, int dport, - int sport, int len); - -/* Checksum */ -extern int NetCksumOk(uchar *, int); /* Return true if cksum OK */ -extern uint NetCksum(uchar *, int); /* Calculate the checksum */ - -/* Callbacks */ -extern rxhand_f *net_get_udp_handler(void); /* Get UDP RX packet handler */ -extern void net_set_udp_handler(rxhand_f *); /* Set UDP RX packet handler */ -extern rxhand_f *net_get_arp_handler(void); /* Get ARP RX packet handler */ -extern void net_set_arp_handler(rxhand_f *); /* Set ARP RX packet handler */ -extern void net_set_icmp_handler(rxhand_icmp_f *f); /* Set ICMP RX handler */ -extern void NetSetTimeout(ulong, thand_f *);/* Set timeout handler */ - -/* Network loop state */ -enum net_loop_state { - NETLOOP_CONTINUE, - NETLOOP_RESTART, - NETLOOP_SUCCESS, - NETLOOP_FAIL -}; -extern enum net_loop_state net_state; - -static inline void net_set_state(enum net_loop_state state) -{ - debug_cond(DEBUG_INT_STATE, "--- NetState set to %d\n", state); - net_state = state; -} - -/* Transmit a packet */ -static inline void NetSendPacket(uchar *pkt, int len) -{ - (void) eth_send(pkt, len); -} - -/* - * Transmit "NetTxPacket" as UDP packet, performing ARP request if needed - * (ether will be populated) - * - * @param ether Raw packet buffer - * @param dest IP address to send the datagram to - * @param dport Destination UDP port - * @param sport Source UDP port - * @param payload_len Length of data after the UDP header - */ -extern int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, - int sport, int payload_len); - -/* Processes a received packet */ -extern void NetReceive(uchar *, int); - -#ifdef CONFIG_NETCONSOLE -void NcStart(void); -int nc_input_packet(uchar *pkt, IPaddr_t src_ip, unsigned dest_port, - unsigned src_port, unsigned len); -#endif - -static inline __attribute__((always_inline)) int eth_is_on_demand_init(void) -{ -#ifdef CONFIG_NETCONSOLE - extern enum proto_t net_loop_last_protocol; - - return net_loop_last_protocol != NETCONS; -#else - return 1; -#endif -} - -static inline void eth_set_last_protocol(int protocol) -{ -#ifdef CONFIG_NETCONSOLE - extern enum proto_t net_loop_last_protocol; - - net_loop_last_protocol = protocol; -#endif -} - -/* - * Check if autoload is enabled. If so, use either NFS or TFTP to download - * the boot file. - */ -void net_auto_load(void); - -/* - * The following functions are a bit ugly, but necessary to deal with - * alignment restrictions on ARM. - * - * We're using inline functions, which had the smallest memory - * footprint in our tests. - */ -/* return IP *in network byteorder* */ -static inline IPaddr_t NetReadIP(void *from) -{ - IPaddr_t ip; - - memcpy((void *)&ip, (void *)from, sizeof(ip)); - return ip; -} - -/* return ulong *in network byteorder* */ -static inline ulong NetReadLong(ulong *from) -{ - ulong l; - - memcpy((void *)&l, (void *)from, sizeof(l)); - return l; -} - -/* write IP *in network byteorder* */ -static inline void NetWriteIP(void *to, IPaddr_t ip) -{ - memcpy(to, (void *)&ip, sizeof(ip)); -} - -/* copy IP */ -static inline void NetCopyIP(void *to, void *from) -{ - memcpy((void *)to, from, sizeof(IPaddr_t)); -} - -/* copy ulong */ -static inline void NetCopyLong(ulong *to, ulong *from) -{ - memcpy((void *)to, (void *)from, sizeof(ulong)); -} - -/** - * is_zero_ether_addr - Determine if give Ethernet address is all zeros. - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Return true if the address is all zeroes. - */ -static inline int is_zero_ether_addr(const u8 *addr) -{ - return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]); -} - -/** - * is_multicast_ether_addr - Determine if the Ethernet address is a multicast. - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Return true if the address is a multicast address. - * By definition the broadcast address is also a multicast address. - */ -static inline int is_multicast_ether_addr(const u8 *addr) -{ - return 0x01 & addr[0]; -} - -/* - * is_broadcast_ether_addr - Determine if the Ethernet address is broadcast - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Return true if the address is the broadcast address. - */ -static inline int is_broadcast_ether_addr(const u8 *addr) -{ - return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == - 0xff; -} - -/* - * is_valid_ether_addr - Determine if the given Ethernet address is valid - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not - * a multicast address, and is not FF:FF:FF:FF:FF:FF. - * - * Return true if the address is valid. - */ -static inline int is_valid_ether_addr(const u8 *addr) -{ - /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to - * explicitly check for it here. */ - return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr); -} - -/** - * eth_random_addr - Generate software assigned random Ethernet address - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Generate a random Ethernet address (MAC) that is not multicast - * and has the local assigned bit set. - */ -static inline void eth_random_addr(uchar *addr) -{ - int i; - unsigned int seed = get_timer(0); - - for (i = 0; i < 6; i++) - addr[i] = rand_r(&seed); - - addr[0] &= 0xfe; /* clear multicast bit */ - addr[0] |= 0x02; /* set local assignment bit (IEEE802) */ -} - -/* Convert an IP address to a string */ -extern void ip_to_string(IPaddr_t x, char *s); - -/* Convert a string to ip address */ -extern IPaddr_t string_to_ip(const char *s); - -/* Convert a VLAN id to a string */ -extern void VLAN_to_string(ushort x, char *s); - -/* Convert a string to a vlan id */ -extern ushort string_to_VLAN(const char *s); - -/* read a VLAN id from an environment variable */ -extern ushort getenv_VLAN(char *); - -/* copy a filename (allow for "..." notation, limit length) */ -extern void copy_filename(char *dst, const char *src, int size); - -/* get a random source port */ -extern unsigned int random_port(void); - -/* Update U-Boot over TFTP */ -extern int update_tftp(ulong addr); - -/**********************************************************************/ - -#endif /* __NET_H__ */ |