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include/net.h
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/* * LiMon Monitor (LiMon) - Network. * * Copyright 1994 - 2000 Neil Russell. * (See License) |
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* SPDX-License-Identifier: GPL-2.0 |
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* * History * 9/16/00 bor adapted to TQM823L/STK8xxL board, RARP/TFTP boot added */ #ifndef __NET_H__ #define __NET_H__ |
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#include <asm/cache.h> |
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#include <asm/byteorder.h> /* for nton* / ntoh* stuff */ |
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#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 */ |
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/* * The number of receive packet buffers, and the required packet buffer * alignment in memory. * */ |
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#ifdef CONFIG_SYS_RX_ETH_BUFFER # define PKTBUFSRX CONFIG_SYS_RX_ETH_BUFFER |
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#else |
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# define PKTBUFSRX 4 |
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#endif |
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#define PKTALIGN ARCH_DMA_MINALIGN |
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/* ARP hardware address length */ #define ARP_HLEN 6 |
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/* * The size of a MAC address in string form, each digit requires two chars * and five separator characters to form '00:00:00:00:00:00'. */ #define ARP_HLEN_ASCII (ARP_HLEN * 2) + (ARP_HLEN - 1) |
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/* IPv4 addresses are always 32 bits in size */ |
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struct in_addr { __be32 s_addr; }; |
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/** * 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 |
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*/ |
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typedef void rxhand_f(uchar *pkt, unsigned dport, |
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struct in_addr sip, unsigned sport, |
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unsigned len); |
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/** * 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, |
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struct in_addr sip, unsigned sport, uchar *pkt, unsigned len); |
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/* * A timeout handler. Called after time interval has expired. */ typedef void thand_f(void); |
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enum eth_state_t { ETH_STATE_INIT, ETH_STATE_PASSIVE, ETH_STATE_ACTIVE }; |
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#ifdef CONFIG_DM_ETH /** * struct eth_pdata - Platform data for Ethernet MAC controllers * * @iobase: The base address of the hardware registers * @enetaddr: The Ethernet MAC address that is loaded from EEPROM or env |
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* @phy_interface: PHY interface to use - see PHY_INTERFACE_MODE_... |
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* @max_speed: Maximum speed of Ethernet connection supported by MAC |
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*/ struct eth_pdata { phys_addr_t iobase; |
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unsigned char enetaddr[ARP_HLEN]; |
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int phy_interface; |
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int max_speed; |
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}; |
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enum eth_recv_flags { /* * Check hardware device for new packets (otherwise only return those * which are already in the memory buffer ready to process) */ ETH_RECV_CHECK_DEVICE = 1 << 0, }; |
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/** * struct eth_ops - functions of Ethernet MAC controllers * * start: Prepare the hardware to send and receive packets * send: Send the bytes passed in "packet" as a packet on the wire |
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* recv: Check if the hardware received a packet. If so, set the pointer to the * packet buffer in the packetp parameter. If not, return an error or 0 to |
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* indicate that the hardware receive FIFO is empty. If 0 is returned, the * network stack will not process the empty packet, but free_pkt() will be * called if supplied * free_pkt: Give the driver an opportunity to manage its packet buffer memory * when the network stack is finished processing it. This will only be * called when no error was returned from recv - optional |
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* stop: Stop the hardware from looking for packets - may be called even if * state == PASSIVE * mcast: Join or leave a multicast group (for TFTP) - optional * write_hwaddr: Write a MAC address to the hardware (used to pass it to Linux * on some platforms like ARM). This function expects the |
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* eth_pdata::enetaddr field to be populated. The method can * return -ENOSYS to indicate that this is not implemented for this hardware - optional. |
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* read_rom_hwaddr: Some devices have a backup of the MAC address stored in a * ROM on the board. This is how the driver should expose it * to the network stack. This function should fill in the * eth_pdata::enetaddr field - optional */ struct eth_ops { int (*start)(struct udevice *dev); int (*send)(struct udevice *dev, void *packet, int length); |
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int (*recv)(struct udevice *dev, int flags, uchar **packetp); |
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int (*free_pkt)(struct udevice *dev, uchar *packet, int length); |
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void (*stop)(struct udevice *dev); #ifdef CONFIG_MCAST_TFTP int (*mcast)(struct udevice *dev, const u8 *enetaddr, int join); #endif int (*write_hwaddr)(struct udevice *dev); int (*read_rom_hwaddr)(struct udevice *dev); }; #define eth_get_ops(dev) ((struct eth_ops *)(dev)->driver->ops) struct udevice *eth_get_dev(void); /* get the current device */ |
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/* * The devname can be either an exact name given by the driver or device tree * or it can be an alias of the form "eth%d" */ struct udevice *eth_get_dev_by_name(const char *devname); |
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unsigned char *eth_get_ethaddr(void); /* get the current device MAC */ |
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/* Used only when NetConsole is enabled */ |
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int eth_is_active(struct udevice *dev); /* Test device for active state */ |
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int eth_init_state_only(void); /* Set active state */ void eth_halt_state_only(void); /* Set passive state */ #endif #ifndef CONFIG_DM_ETH |
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struct eth_device { |
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#define ETH_NAME_LEN 16 char name[ETH_NAME_LEN]; |
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unsigned char enetaddr[ARP_HLEN]; |
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phys_addr_t iobase; |
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int state; |
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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 *); |
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#ifdef CONFIG_MCAST_TFTP |
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int (*mcast)(struct eth_device *, const u8 *enetaddr, u8 set); |
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#endif |
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int (*write_hwaddr)(struct eth_device *); |
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struct eth_device *next; |
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int index; |
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void *priv; }; |
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int eth_register(struct eth_device *dev);/* Register network device */ int eth_unregister(struct eth_device *dev);/* Remove network device */ |
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extern struct eth_device *eth_current; |
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static __always_inline struct eth_device *eth_get_dev(void) |
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{ |
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return eth_current; } |
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struct eth_device *eth_get_dev_by_name(const char *devname); struct eth_device *eth_get_dev_by_index(int index); /* get dev @ index */ |
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/* get the current device MAC */ |
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static inline unsigned char *eth_get_ethaddr(void) { if (eth_current) return eth_current->enetaddr; return NULL; } |
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/* Used only when NetConsole is enabled */ int eth_is_active(struct eth_device *dev); /* Test device for active state */ |
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/* Set active state */ |
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static __always_inline int eth_init_state_only(void) |
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{ eth_get_dev()->state = ETH_STATE_ACTIVE; return 0; } /* Set passive state */ |
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static __always_inline void eth_halt_state_only(void) |
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{ 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); int usb_eth_initialize(bd_t *bi); |
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#endif |
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int eth_initialize(void); /* Initialize network subsystem */ |
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void eth_try_another(int first_restart); /* Change the device */ void eth_set_current(void); /* set nterface to ethcur var */ |
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int eth_get_dev_index(void); /* get the device index */ void eth_parse_enetaddr(const char *addr, uchar *enetaddr); |
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int eth_env_get_enetaddr(const char *name, uchar *enetaddr); |
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int eth_env_set_enetaddr(const char *name, const uchar *enetaddr); |
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/** |
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* eth_env_set_enetaddr_by_index() - set the MAC address environment variable |
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* * This sets up an environment variable with the given MAC address (@enetaddr). * The environment variable to be set is defined by <@base_name><@index>addr. * If @index is 0 it is omitted. For common Ethernet this means ethaddr, * eth1addr, etc. * * @base_name: Base name for variable, typically "eth" * @index: Index of interface being updated (>=0) * @enetaddr: Pointer to MAC address to put into the variable * @return 0 if OK, other value on error */ |
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int eth_env_set_enetaddr_by_index(const char *base_name, int index, |
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uchar *enetaddr); |
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/* |
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* Initialize USB ethernet device with CONFIG_DM_ETH * Returns: * 0 is success, non-zero is error status. */ int usb_ether_init(void); /* |
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* 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. */ |
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int eth_env_get_enetaddr_by_index(const char *base_name, int index, |
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uchar *enetaddr); |
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int eth_init(void); /* Initialize the device */ |
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int eth_send(void *packet, int length); /* Send a packet */ |
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#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) |
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int eth_receive(void *packet, int length); /* Receive a packet*/ |
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extern void (*push_packet)(void *packet, int length); |
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#endif |
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int eth_rx(void); /* Check for received packets */ void eth_halt(void); /* stop SCC */ |
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const char *eth_get_name(void); /* get name of current device */ |
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#ifdef CONFIG_MCAST_TFTP |
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int eth_mcast_join(struct in_addr mcast_addr, int join); |
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u32 ether_crc(size_t len, unsigned char const *p); |
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#endif |
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/**********************************************************************/ /* * Protocol headers. */ /* * Ethernet header */ |
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struct ethernet_hdr { |
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u8 et_dest[ARP_HLEN]; /* Destination node */ u8 et_src[ARP_HLEN]; /* Source node */ u16 et_protlen; /* Protocol or length */ |
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} __attribute__((packed)); |
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/* Ethernet header size */ #define ETHER_HDR_SIZE (sizeof(struct ethernet_hdr)) |
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#define ETH_FCS_LEN 4 /* Octets in the FCS */ |
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struct e802_hdr { |
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u8 et_dest[ARP_HLEN]; /* Destination node */ u8 et_src[ARP_HLEN]; /* Source node */ u16 et_protlen; /* Protocol or length */ u8 et_dsap; /* 802 DSAP */ u8 et_ssap; /* 802 SSAP */ u8 et_ctl; /* 802 control */ u8 et_snap1; /* SNAP */ |
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u8 et_snap2; u8 et_snap3; |
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u16 et_prot; /* 802 protocol */ |
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} __attribute__((packed)); |
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/* 802 + SNAP + ethernet header size */ |
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#define E802_HDR_SIZE (sizeof(struct e802_hdr)) |
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/* |
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* Virtual LAN Ethernet header |
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*/ |
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struct vlan_ethernet_hdr { |
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u8 vet_dest[ARP_HLEN]; /* Destination node */ u8 vet_src[ARP_HLEN]; /* Source node */ u16 vet_vlan_type; /* PROT_VLAN */ u16 vet_tag; /* TAG of VLAN */ u16 vet_type; /* protocol type */ |
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} __attribute__((packed)); |
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/* VLAN Ethernet header size */ #define VLAN_ETHER_HDR_SIZE (sizeof(struct vlan_ethernet_hdr)) |
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#define PROT_IP 0x0800 /* IP protocol */ #define PROT_ARP 0x0806 /* IP ARP protocol */ #define PROT_RARP 0x8035 /* IP ARP protocol */ |
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#define PROT_VLAN 0x8100 /* IEEE 802.1q protocol */ |
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#define PROT_IPV6 0x86dd /* IPv6 over bluebook */ #define PROT_PPP_SES 0x8864 /* PPPoE session messages */ |
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#define IPPROTO_ICMP 1 /* Internet Control Message Protocol */ #define IPPROTO_UDP 17 /* User Datagram Protocol */ /* |
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* Internet Protocol (IP) header. |
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*/ |
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struct ip_hdr { |
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u8 ip_hl_v; /* header length and version */ u8 ip_tos; /* type of service */ u16 ip_len; /* total length */ u16 ip_id; /* identification */ u16 ip_off; /* fragment offset field */ u8 ip_ttl; /* time to live */ u8 ip_p; /* protocol */ u16 ip_sum; /* checksum */ |
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struct in_addr ip_src; /* Source IP address */ struct in_addr ip_dst; /* Destination IP address */ |
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} __attribute__((packed)); |
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#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 */ |
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#define IP_HDR_SIZE (sizeof(struct ip_hdr)) /* * Internet Protocol (IP) + UDP header. */ struct ip_udp_hdr { |
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u8 ip_hl_v; /* header length and version */ u8 ip_tos; /* type of service */ u16 ip_len; /* total length */ u16 ip_id; /* identification */ u16 ip_off; /* fragment offset field */ u8 ip_ttl; /* time to live */ u8 ip_p; /* protocol */ u16 ip_sum; /* checksum */ |
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struct in_addr ip_src; /* Source IP address */ struct in_addr ip_dst; /* Destination IP address */ |
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u16 udp_src; /* UDP source port */ u16 udp_dst; /* UDP destination port */ u16 udp_len; /* Length of UDP packet */ u16 udp_xsum; /* Checksum */ |
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} __attribute__((packed)); |
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#define IP_UDP_HDR_SIZE (sizeof(struct ip_udp_hdr)) |
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#define UDP_HDR_SIZE (IP_UDP_HDR_SIZE - IP_HDR_SIZE) |
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/* * Address Resolution Protocol (ARP) header. */ |
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struct arp_hdr { |
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u16 ar_hrd; /* Format of hardware address */ |
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# define ARP_ETHER 1 /* Ethernet hardware address */ |
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u16 ar_pro; /* Format of protocol address */ u8 ar_hln; /* Length of hardware address */ |
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u8 ar_pln; /* Length of protocol address */ |
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# define ARP_PLEN 4 |
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u16 ar_op; /* Operation */ |
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# 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 */ /* |
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* The remaining fields are variable in size, according to * the sizes above, and are defined as appropriate for * specific hardware/protocol combinations. |
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*/ |
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u8 ar_data[0]; |
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#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] |
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#if 0 |
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u8 ar_sha[]; /* Sender hardware address */ u8 ar_spa[]; /* Sender protocol address */ u8 ar_tha[]; /* Target hardware address */ u8 ar_tpa[]; /* Target protocol address */ |
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#endif /* 0 */ |
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} __attribute__((packed)); |
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#define ARP_HDR_SIZE (8+20) /* Size assuming ethernet */ /* * ICMP stuff (just enough to handle (host) redirect messages) */ |
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#define ICMP_ECHO_REPLY 0 /* Echo reply */ |
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#define ICMP_NOT_REACH 3 /* Detination unreachable */ |
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#define ICMP_REDIRECT 5 /* Redirect (change route) */ |
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#define ICMP_ECHO_REQUEST 8 /* Echo request */ |
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/* Codes for REDIRECT. */ #define ICMP_REDIR_NET 0 /* Redirect Net */ #define ICMP_REDIR_HOST 1 /* Redirect Host */ |
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/* Codes for NOT_REACH */ #define ICMP_NOT_REACH_PORT 3 /* Port unreachable */ |
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struct icmp_hdr { |
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u8 type; u8 code; u16 checksum; |
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union { struct { |
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u16 id; u16 sequence; |
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} echo; |
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u32 gateway; |
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struct { |
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u16 unused; u16 mtu; |
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} frag; |
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u8 data[0]; |
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} un; |
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} __attribute__((packed)); |
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|
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#define ICMP_HDR_SIZE (sizeof(struct icmp_hdr)) #define IP_ICMP_HDR_SIZE (IP_HDR_SIZE + ICMP_HDR_SIZE) |
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|
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/* |
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* Maximum packet size; used to allocate packet storage. Use * the maxium Ethernet frame size as specified by the Ethernet * standard including the 802.1Q tag (VLAN tagging). * maximum packet size = 1522 |
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* maximum packet size and multiple of 32 bytes = 1536 */ |
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#define PKTSIZE 1522 |
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#define PKTSIZE_ALIGN 1536 |
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/* * 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: * |
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* All variables of type struct in_addr are stored in NETWORK byte order |
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* (big endian). */ /* net.c */ /** BOOTP EXTENTIONS **/ |
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extern struct in_addr net_gateway; /* Our gateway IP address */ extern struct in_addr net_netmask; /* Our subnet mask (0 = unknown) */ /* Our Domain Name Server (0 = unknown) */ extern struct in_addr net_dns_server; |
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#if defined(CONFIG_BOOTP_DNS2) |
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/* Our 2nd Domain Name Server (0 = unknown) */ extern struct in_addr net_dns_server2; |
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#endif |
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extern char net_nis_domain[32]; /* Our IS domain */ extern char net_hostname[32]; /* Our hostname */ extern char net_root_path[64]; /* Our root path */ |
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/** END OF BOOTP EXTENTIONS **/ |
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extern u8 net_ethaddr[ARP_HLEN]; /* Our ethernet address */ extern u8 net_server_ethaddr[ARP_HLEN]; /* Boot server enet address */ |
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extern struct in_addr net_ip; /* Our IP addr (0 = unknown) */ extern struct in_addr net_server_ip; /* Server IP addr (0 = unknown) */ |
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extern uchar *net_tx_packet; /* THE transmit packet */ |
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extern uchar *net_rx_packets[PKTBUFSRX]; /* Receive packets */ |
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extern uchar *net_rx_packet; /* Current receive packet */ extern int net_rx_packet_len; /* Current rx packet length */ |
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extern const u8 net_bcast_ethaddr[ARP_HLEN]; /* Ethernet broadcast address */ extern const u8 net_null_ethaddr[ARP_HLEN]; |
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|
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#define VLAN_NONE 4095 /* untagged */ #define VLAN_IDMASK 0x0fff /* mask of valid vlan id */ |
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extern ushort net_our_vlan; /* Our VLAN */ extern ushort net_native_vlan; /* Our Native VLAN */ |
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|
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extern int net_restart_wrap; /* Tried all network devices */ |
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|
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enum proto_t { BOOTP, RARP, ARP, TFTPGET, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP, |
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TFTPSRV, TFTPPUT, LINKLOCAL |
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}; |
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|
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extern char net_boot_file_name[1024];/* Boot File name */ |
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/* The actual transferred size of the bootfile (in bytes) */ extern u32 net_boot_file_size; /* Boot file size in blocks as reported by the DHCP server */ extern u32 net_boot_file_expected_size_in_blocks; |
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|
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#if defined(CONFIG_CMD_DNS) |
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extern char *net_dns_resolve; /* The host to resolve */ extern char *net_dns_env_var; /* the env var to put the ip into */ |
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#endif |
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#if defined(CONFIG_CMD_PING) |
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extern struct in_addr net_ping_ip; /* the ip address to ping */ |
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#endif |
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#if defined(CONFIG_CMD_CDP) |
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/* when CDP completes these hold the return values */ |
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extern ushort cdp_native_vlan; /* CDP returned native VLAN */ extern ushort cdp_appliance_vlan; /* CDP returned appliance VLAN */ |
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/* * Check for a CDP packet by examining the received MAC address field */ |
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static inline int is_cdp_packet(const uchar *ethaddr) |
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{ |
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extern const u8 net_cdp_ethaddr[ARP_HLEN]; |
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|
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return memcmp(ethaddr, net_cdp_ethaddr, ARP_HLEN) == 0; |
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549 |
} |
a3d991bd0 Patches by Pantel... |
550 |
#endif |
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551 |
#if defined(CONFIG_CMD_SNTP) |
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extern struct in_addr net_ntp_server; /* the ip address to NTP */ |
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553 |
extern int net_ntp_time_offset; /* offset time from UTC */ |
ea287debe * Patch by Masami... |
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#endif |
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555 |
#if defined(CONFIG_MCAST_TFTP) |
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extern struct in_addr net_mcast_addr; |
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557 |
#endif |
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/* Initialize the network adapter */ |
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void net_init(void); |
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int net_loop(enum proto_t); |
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/* Load failed. Start again. */ |
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int net_start_again(void); |
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|
a3d991bd0 Patches by Pantel... |
565 |
/* Get size of the ethernet header when we send */ |
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int net_eth_hdr_size(void); |
a3d991bd0 Patches by Pantel... |
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/* Set ethernet header; returns the size of the header */ |
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int net_set_ether(uchar *xet, const uchar *dest_ethaddr, uint prot); |
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570 |
int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot); |
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/* Set IP header */ |
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void net_set_ip_header(uchar *pkt, struct in_addr dest, struct in_addr source); void net_set_udp_header(uchar *pkt, struct in_addr dest, int dport, |
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int sport, int len); |
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|
9b0e35cb4 net: Add a separa... |
577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 |
/** * compute_ip_checksum() - Compute IP checksum * * @addr: Address to check (must be 16-bit aligned) * @nbytes: Number of bytes to check (normally a multiple of 2) * @return 16-bit IP checksum */ unsigned compute_ip_checksum(const void *addr, unsigned nbytes); /** * add_ip_checksums() - add two IP checksums * * @offset: Offset of first sum (if odd we do a byte-swap) * @sum: First checksum * @new_sum: New checksum to add * @return updated 16-bit IP checksum */ unsigned add_ip_checksums(unsigned offset, unsigned sum, unsigned new_sum); /** * ip_checksum_ok() - check if a checksum is correct * * This works by making sure the checksum sums to 0 * * @addr: Address to check (must be 16-bit aligned) * @nbytes: Number of bytes to check (normally a multiple of 2) * @return true if the checksum matches, false if not */ int ip_checksum_ok(const void *addr, unsigned nbytes); |
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/* Callbacks */ |
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rxhand_f *net_get_udp_handler(void); /* Get UDP RX packet handler */ void net_set_udp_handler(rxhand_f *); /* Set UDP RX packet handler */ rxhand_f *net_get_arp_handler(void); /* Get ARP RX packet handler */ void net_set_arp_handler(rxhand_f *); /* Set ARP RX packet handler */ void net_set_icmp_handler(rxhand_icmp_f *f); /* Set ICMP RX handler */ |
bc0571fc1 net: cosmetic: Fi... |
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void net_set_timeout_handler(ulong, thand_f *);/* Set timeout handler */ |
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|
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/* Network loop state */ enum net_loop_state { NETLOOP_CONTINUE, NETLOOP_RESTART, NETLOOP_SUCCESS, NETLOOP_FAIL }; |
063705908 net/: sparse fixes |
621 |
extern enum net_loop_state net_state; |
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622 623 |
static inline void net_set_state(enum net_loop_state state) { |
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debug_cond(DEBUG_INT_STATE, "--- NetState set to %d ", state); |
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626 627 |
net_state = state; } |
e94070c44 net: Don't copy e... |
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/* Transmit a packet */ |
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629 |
static inline void net_send_packet(uchar *pkt, int len) |
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630 |
{ |
60304592b net: Improve erro... |
631 |
/* Currently no way to return errors from eth_send() */ |
adf5d93e4 net: Refactor to ... |
632 633 |
(void) eth_send(pkt, len); } |
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|
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/* |
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* Transmit "net_tx_packet" as UDP packet, performing ARP request if needed |
ece223b52 net: Refactor to ... |
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* (ether will be populated) |
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* * @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 */ |
1203fccee net: cosmetic: Cl... |
645 |
int net_send_udp_packet(uchar *ether, struct in_addr dest, int dport, |
206d07fd7 net: cosmetic: Re... |
646 |
int sport, int payload_len); |
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647 |
|
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/* Processes a received packet */ |
2a504df00 net: Clean up net... |
649 |
void net_process_received_packet(uchar *in_packet, int len); |
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|
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#ifdef CONFIG_NETCONSOLE |
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652 |
void nc_start(void); |
049a95a77 net: cosmetic: Ch... |
653 |
int nc_input_packet(uchar *pkt, struct in_addr src_ip, unsigned dest_port, |
8a0eccb10 net: Filter incom... |
654 |
unsigned src_port, unsigned len); |
48522bb50 net: cosmetic: ne... |
655 |
#endif |
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static __always_inline int eth_is_on_demand_init(void) |
f8be7d659 net: Improve the ... |
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{ #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 } |
2d966958c Initial revision |
675 |
/* |
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* Check if autoload is enabled. If so, use either NFS or TFTP to download * the boot file. */ void net_auto_load(void); /* |
2d966958c Initial revision |
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* 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* */ |
049a95a77 net: cosmetic: Ch... |
689 |
static inline struct in_addr net_read_ip(void *from) |
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690 |
{ |
049a95a77 net: cosmetic: Ch... |
691 |
struct in_addr ip; |
b28e28bbc net: cosmetic: ne... |
692 693 |
memcpy((void *)&ip, (void *)from, sizeof(ip)); |
2d966958c Initial revision |
694 695 696 697 |
return ip; } /* return ulong *in network byteorder* */ |
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698 |
static inline u32 net_read_u32(u32 *from) |
2d966958c Initial revision |
699 |
{ |
5917e7d16 net: Fix incorrec... |
700 |
u32 l; |
b28e28bbc net: cosmetic: ne... |
701 702 |
memcpy((void *)&l, (void *)from, sizeof(l)); |
2d966958c Initial revision |
703 704 705 706 |
return l; } /* write IP *in network byteorder* */ |
049a95a77 net: cosmetic: Ch... |
707 |
static inline void net_write_ip(void *to, struct in_addr ip) |
2d966958c Initial revision |
708 |
{ |
b28e28bbc net: cosmetic: ne... |
709 |
memcpy(to, (void *)&ip, sizeof(ip)); |
2d966958c Initial revision |
710 711 712 |
} /* copy IP */ |
049a95a77 net: cosmetic: Ch... |
713 |
static inline void net_copy_ip(void *to, void *from) |
2d966958c Initial revision |
714 |
{ |
049a95a77 net: cosmetic: Ch... |
715 |
memcpy((void *)to, from, sizeof(struct in_addr)); |
2d966958c Initial revision |
716 717 718 |
} /* copy ulong */ |
5917e7d16 net: Fix incorrec... |
719 |
static inline void net_copy_u32(u32 *to, u32 *from) |
2d966958c Initial revision |
720 |
{ |
5917e7d16 net: Fix incorrec... |
721 |
memcpy((void *)to, (void *)from, sizeof(u32)); |
2d966958c Initial revision |
722 |
} |
50cca8b97 Add ability to ta... |
723 |
/** |
0adb5b761 net: cosmetic: Na... |
724 |
* is_zero_ethaddr - Determine if give Ethernet address is all zeros. |
50cca8b97 Add ability to ta... |
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* @addr: Pointer to a six-byte array containing the Ethernet address * * Return true if the address is all zeroes. */ |
0adb5b761 net: cosmetic: Na... |
729 |
static inline int is_zero_ethaddr(const u8 *addr) |
50cca8b97 Add ability to ta... |
730 731 732 733 734 |
{ return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]); } /** |
0adb5b761 net: cosmetic: Na... |
735 |
* is_multicast_ethaddr - Determine if the Ethernet address is a multicast. |
50cca8b97 Add ability to ta... |
736 737 738 739 740 |
* @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. */ |
0adb5b761 net: cosmetic: Na... |
741 |
static inline int is_multicast_ethaddr(const u8 *addr) |
50cca8b97 Add ability to ta... |
742 |
{ |
b28e28bbc net: cosmetic: ne... |
743 |
return 0x01 & addr[0]; |
50cca8b97 Add ability to ta... |
744 |
} |
23cd13850 Integrate USB gad... |
745 |
/* |
0adb5b761 net: cosmetic: Na... |
746 |
* is_broadcast_ethaddr - Determine if the Ethernet address is broadcast |
23cd13850 Integrate USB gad... |
747 748 749 750 |
* @addr: Pointer to a six-byte array containing the Ethernet address * * Return true if the address is the broadcast address. */ |
0adb5b761 net: cosmetic: Na... |
751 |
static inline int is_broadcast_ethaddr(const u8 *addr) |
23cd13850 Integrate USB gad... |
752 |
{ |
b28e28bbc net: cosmetic: ne... |
753 754 |
return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff; |
23cd13850 Integrate USB gad... |
755 756 757 |
} /* |
0adb5b761 net: cosmetic: Na... |
758 |
* is_valid_ethaddr - Determine if the given Ethernet address is valid |
75edebe30 Move is_valid_eth... |
759 760 761 762 763 764 765 |
* @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. */ |
0adb5b761 net: cosmetic: Na... |
766 |
static inline int is_valid_ethaddr(const u8 *addr) |
75edebe30 Move is_valid_eth... |
767 768 769 |
{ /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to * explicitly check for it here. */ |
0adb5b761 net: cosmetic: Na... |
770 |
return !is_multicast_ethaddr(addr) && !is_zero_ethaddr(addr); |
75edebe30 Move is_valid_eth... |
771 |
} |
da384a9d7 net: rename and r... |
772 |
/** |
0adb5b761 net: cosmetic: Na... |
773 |
* net_random_ethaddr - Generate software assigned random Ethernet address |
da384a9d7 net: rename and r... |
774 775 776 777 778 |
* @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. */ |
0adb5b761 net: cosmetic: Na... |
779 |
static inline void net_random_ethaddr(uchar *addr) |
da384a9d7 net: rename and r... |
780 781 782 783 784 785 786 787 788 789 |
{ 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) */ } |
2d966958c Initial revision |
790 |
/* Convert an IP address to a string */ |
049a95a77 net: cosmetic: Ch... |
791 |
void ip_to_string(struct in_addr x, char *s); |
2d966958c Initial revision |
792 |
|
73a8b27c5 * Add support for... |
793 |
/* Convert a string to ip address */ |
049a95a77 net: cosmetic: Ch... |
794 |
struct in_addr string_to_ip(const char *s); |
73a8b27c5 * Add support for... |
795 |
|
a3d991bd0 Patches by Pantel... |
796 |
/* Convert a VLAN id to a string */ |
4fd5055f5 net: cosmetic: Cl... |
797 |
void vlan_to_string(ushort x, char *s); |
a3d991bd0 Patches by Pantel... |
798 799 |
/* Convert a string to a vlan id */ |
4fd5055f5 net: cosmetic: Cl... |
800 |
ushort string_to_vlan(const char *s); |
a3d991bd0 Patches by Pantel... |
801 |
|
a3d991bd0 Patches by Pantel... |
802 |
/* read a VLAN id from an environment variable */ |
723806cc5 env: Rename some ... |
803 |
ushort env_get_vlan(char *); |
a3d991bd0 Patches by Pantel... |
804 |
|
2d966958c Initial revision |
805 |
/* copy a filename (allow for "..." notation, limit length) */ |
ff9974325 net: Remove unnee... |
806 |
void copy_filename(char *dst, const char *src, int size); |
2d966958c Initial revision |
807 |
|
91b469c95 net: add random_p... |
808 |
/* get a random source port */ |
ff9974325 net: Remove unnee... |
809 |
unsigned int random_port(void); |
91b469c95 net: add random_p... |
810 |
|
c7ff55284 update: tftp: dfu... |
811 812 813 814 815 816 817 818 819 820 821 822 |
/** * update_tftp - Update firmware over TFTP (via DFU) * * This function updates board's firmware via TFTP * * @param addr - memory address where data is stored * @param interface - the DFU medium name - e.g. "mmc" * @param devstring - the DFU medium number - e.g. "1" * * @return - 0 on success, other value on failure */ int update_tftp(ulong addr, char *interface, char *devstring); |
ea5427e26 net: Add prototyp... |
823 |
|
2d966958c Initial revision |
824 825 826 |
/**********************************************************************/ #endif /* __NET_H__ */ |