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https://github.com/brain-hackers/u-boot-brain
synced 2024-08-18 16:08:53 +09:00
![Joe Hershberger](/assets/img/avatar_default.png)
This value is not used by the network stack and is available in the global data, so stop passing it around. For the one legacy function that still expects it (init op on old Ethernet drivers) pass in the global pointer version directly to avoid changing that interface. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reported-by: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> (Trival fix to remove an unneeded variable declaration in 4xx_enet.c)
744 lines
21 KiB
C
744 lines
21 KiB
C
/*
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* LiMon Monitor (LiMon) - Network.
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*
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* Copyright 1994 - 2000 Neil Russell.
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* (See License)
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* SPDX-License-Identifier: GPL-2.0
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*
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* History
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* 9/16/00 bor adapted to TQM823L/STK8xxL board, RARP/TFTP boot added
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*/
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#ifndef __NET_H__
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#define __NET_H__
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#if defined(CONFIG_8xx)
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#include <commproc.h>
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#endif /* CONFIG_8xx */
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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 */
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#define DEBUG_DEV_PKT 0 /* Packets or info directed to the device */
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#define DEBUG_NET_PKT 0 /* Packets on info on the network at large */
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#define DEBUG_INT_STATE 0 /* Internal network state changes */
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/*
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* The number of receive packet buffers, and the required packet buffer
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* alignment in memory.
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*
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*/
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#ifdef CONFIG_SYS_RX_ETH_BUFFER
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# 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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/* IPv4 addresses are always 32 bits in size */
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typedef __be32 IPaddr_t;
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/**
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* An incoming packet handler.
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* @param pkt pointer to the application packet
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* @param dport destination UDP port
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* @param sip source IP address
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* @param sport source UDP port
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* @param len packet length
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*/
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typedef void rxhand_f(uchar *pkt, unsigned dport,
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IPaddr_t sip, unsigned sport,
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unsigned len);
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/**
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* An incoming ICMP packet handler.
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* @param type ICMP type
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* @param code ICMP code
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* @param dport destination UDP port
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* @param sip source IP address
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* @param sport source UDP port
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* @param pkt pointer to the ICMP packet data
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* @param len packet length
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*/
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typedef void rxhand_icmp_f(unsigned type, unsigned code, unsigned dport,
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IPaddr_t sip, unsigned sport, uchar *pkt, unsigned len);
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/*
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* A timeout handler. Called after time interval has expired.
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*/
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typedef void thand_f(void);
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enum eth_state_t {
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ETH_STATE_INIT,
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ETH_STATE_PASSIVE,
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ETH_STATE_ACTIVE
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};
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struct eth_device {
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char name[16];
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unsigned char enetaddr[6];
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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 *);
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int (*send) (struct eth_device *, void *packet, int length);
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int (*recv) (struct eth_device *);
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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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};
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int eth_register(struct eth_device *dev);/* Register network device */
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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 inline __attribute__((always_inline))
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struct eth_device *eth_get_dev(void)
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{
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return eth_current;
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}
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struct eth_device *eth_get_dev_by_name(const char *devname);
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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)
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{
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if (eth_current)
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return eth_current->enetaddr;
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return NULL;
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}
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/* Set active state */
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static inline __attribute__((always_inline)) int eth_init_state_only(void)
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{
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eth_get_dev()->state = ETH_STATE_ACTIVE;
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return 0;
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}
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/* Set passive state */
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static inline __attribute__((always_inline)) void eth_halt_state_only(void)
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{
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eth_get_dev()->state = ETH_STATE_PASSIVE;
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}
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/*
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* Set the hardware address for an ethernet interface based on 'eth%daddr'
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* environment variable (or just 'ethaddr' if eth_number is 0).
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* Args:
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* base_name - base name for device (normally "eth")
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* eth_number - value of %d (0 for first device of this type)
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* Returns:
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* 0 is success, non-zero is error status from driver.
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*/
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int eth_write_hwaddr(struct eth_device *dev, const char *base_name,
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int eth_number);
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int usb_eth_initialize(bd_t *bi);
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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 */
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void eth_set_current(void); /* set nterface to ethcur var */
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int eth_get_dev_index(void); /* get the device index */
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void eth_parse_enetaddr(const char *addr, uchar *enetaddr);
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int eth_getenv_enetaddr(char *name, uchar *enetaddr);
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int eth_setenv_enetaddr(char *name, const uchar *enetaddr);
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/*
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* Get the hardware address for an ethernet interface .
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* Args:
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* base_name - base name for device (normally "eth")
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* index - device index number (0 for first)
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* enetaddr - returns 6 byte hardware address
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* Returns:
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* Return true if the address is valid.
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*/
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int eth_getenv_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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#ifdef CONFIG_API
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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 */
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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(IPaddr_t 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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/**********************************************************************/
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/*
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* Protocol headers.
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*/
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/*
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* Ethernet header
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*/
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struct ethernet_hdr {
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uchar et_dest[6]; /* Destination node */
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uchar et_src[6]; /* Source node */
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ushort et_protlen; /* Protocol or length */
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};
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/* Ethernet header size */
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#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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uchar et_dest[6]; /* Destination node */
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uchar et_src[6]; /* Source node */
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ushort et_protlen; /* Protocol or length */
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uchar et_dsap; /* 802 DSAP */
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uchar et_ssap; /* 802 SSAP */
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uchar et_ctl; /* 802 control */
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uchar et_snap1; /* SNAP */
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uchar et_snap2;
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uchar et_snap3;
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ushort et_prot; /* 802 protocol */
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};
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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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uchar vet_dest[6]; /* Destination node */
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uchar vet_src[6]; /* Source node */
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ushort vet_vlan_type; /* PROT_VLAN */
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ushort vet_tag; /* TAG of VLAN */
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ushort vet_type; /* protocol type */
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};
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/* VLAN Ethernet header size */
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#define VLAN_ETHER_HDR_SIZE (sizeof(struct vlan_ethernet_hdr))
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#define PROT_IP 0x0800 /* IP protocol */
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#define PROT_ARP 0x0806 /* IP ARP protocol */
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#define PROT_RARP 0x8035 /* IP ARP protocol */
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#define PROT_VLAN 0x8100 /* IEEE 802.1q protocol */
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#define IPPROTO_ICMP 1 /* Internet Control Message Protocol */
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#define IPPROTO_UDP 17 /* User Datagram Protocol */
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/*
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* Internet Protocol (IP) header.
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*/
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struct ip_hdr {
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uchar ip_hl_v; /* header length and version */
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uchar ip_tos; /* type of service */
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ushort ip_len; /* total length */
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ushort ip_id; /* identification */
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ushort ip_off; /* fragment offset field */
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uchar ip_ttl; /* time to live */
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uchar ip_p; /* protocol */
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ushort ip_sum; /* checksum */
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IPaddr_t ip_src; /* Source IP address */
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IPaddr_t ip_dst; /* Destination IP address */
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};
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#define IP_OFFS 0x1fff /* ip offset *= 8 */
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#define IP_FLAGS 0xe000 /* first 3 bits */
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#define IP_FLAGS_RES 0x8000 /* reserved */
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#define IP_FLAGS_DFRAG 0x4000 /* don't fragments */
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#define IP_FLAGS_MFRAG 0x2000 /* more fragments */
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#define IP_HDR_SIZE (sizeof(struct ip_hdr))
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/*
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* Internet Protocol (IP) + UDP header.
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*/
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struct ip_udp_hdr {
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uchar ip_hl_v; /* header length and version */
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uchar ip_tos; /* type of service */
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ushort ip_len; /* total length */
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ushort ip_id; /* identification */
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ushort ip_off; /* fragment offset field */
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uchar ip_ttl; /* time to live */
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uchar ip_p; /* protocol */
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ushort ip_sum; /* checksum */
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IPaddr_t ip_src; /* Source IP address */
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IPaddr_t ip_dst; /* Destination IP address */
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ushort udp_src; /* UDP source port */
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ushort udp_dst; /* UDP destination port */
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ushort udp_len; /* Length of UDP packet */
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ushort udp_xsum; /* Checksum */
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};
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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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/*
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* Address Resolution Protocol (ARP) header.
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*/
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struct arp_hdr {
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ushort ar_hrd; /* Format of hardware address */
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# define ARP_ETHER 1 /* Ethernet hardware address */
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ushort ar_pro; /* Format of protocol address */
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uchar ar_hln; /* Length of hardware address */
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# define ARP_HLEN 6
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uchar ar_pln; /* Length of protocol address */
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# define ARP_PLEN 4
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ushort ar_op; /* Operation */
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# define ARPOP_REQUEST 1 /* Request to resolve address */
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# define ARPOP_REPLY 2 /* Response to previous request */
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# define RARPOP_REQUEST 3 /* Request to resolve address */
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# define RARPOP_REPLY 4 /* Response to previous request */
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/*
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* The remaining fields are variable in size, according to
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* the sizes above, and are defined as appropriate for
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* specific hardware/protocol combinations.
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*/
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uchar ar_data[0];
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#define ar_sha ar_data[0]
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#define ar_spa ar_data[ARP_HLEN]
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#define ar_tha ar_data[ARP_HLEN + ARP_PLEN]
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#define ar_tpa ar_data[ARP_HLEN + ARP_PLEN + ARP_HLEN]
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#if 0
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uchar ar_sha[]; /* Sender hardware address */
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uchar ar_spa[]; /* Sender protocol address */
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uchar ar_tha[]; /* Target hardware address */
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uchar ar_tpa[]; /* Target protocol address */
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#endif /* 0 */
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};
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#define ARP_HDR_SIZE (8+20) /* Size assuming ethernet */
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/*
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* ICMP stuff (just enough to handle (host) redirect messages)
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*/
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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. */
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#define ICMP_REDIR_NET 0 /* Redirect Net */
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#define ICMP_REDIR_HOST 1 /* Redirect Host */
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/* Codes for NOT_REACH */
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#define ICMP_NOT_REACH_PORT 3 /* Port unreachable */
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struct icmp_hdr {
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uchar type;
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uchar code;
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ushort checksum;
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union {
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struct {
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ushort id;
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ushort sequence;
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} echo;
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ulong gateway;
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struct {
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ushort unused;
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ushort mtu;
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} frag;
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uchar data[0];
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} un;
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};
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#define ICMP_HDR_SIZE (sizeof(struct icmp_hdr))
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#define IP_ICMP_HDR_SIZE (IP_HDR_SIZE + ICMP_HDR_SIZE)
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/*
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* Maximum packet size; used to allocate packet storage.
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* TFTP packets can be 524 bytes + IP header + ethernet header.
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* Lets be conservative, and go for 38 * 16. (Must also be
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* a multiple of 32 bytes).
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*/
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/*
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* AS.HARNOIS : Better to set PKTSIZE to maximum size because
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* traffic type is not always controlled
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* maximum packet size = 1518
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* maximum packet size and multiple of 32 bytes = 1536
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*/
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#define PKTSIZE 1518
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#define PKTSIZE_ALIGN 1536
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/*#define PKTSIZE 608*/
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/*
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* Maximum receive ring size; that is, the number of packets
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* we can buffer before overflow happens. Basically, this just
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* needs to be enough to prevent a packet being discarded while
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* we are processing the previous one.
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*/
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#define RINGSZ 4
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#define RINGSZ_LOG2 2
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/**********************************************************************/
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/*
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* Globals.
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*
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* Note:
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*
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* All variables of type IPaddr_t are stored in NETWORK byte order
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* (big endian).
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*/
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/* net.c */
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/** BOOTP EXTENTIONS **/
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extern IPaddr_t NetOurGatewayIP; /* Our gateway IP address */
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extern IPaddr_t NetOurSubnetMask; /* Our subnet mask (0 = unknown) */
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extern IPaddr_t NetOurDNSIP; /* Our Domain Name Server (0 = unknown) */
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#if defined(CONFIG_BOOTP_DNS2)
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extern IPaddr_t NetOurDNS2IP; /* Our 2nd Domain Name Server (0 = unknown) */
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#endif
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extern char NetOurNISDomain[32]; /* Our NIS domain */
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extern char NetOurHostName[32]; /* Our hostname */
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extern char NetOurRootPath[64]; /* Our root path */
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extern ushort NetBootFileSize; /* Our boot file size in blocks */
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/** END OF BOOTP EXTENTIONS **/
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extern ulong NetBootFileXferSize; /* size of bootfile in bytes */
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extern uchar NetOurEther[6]; /* Our ethernet address */
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extern uchar NetServerEther[6]; /* Boot server enet address */
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extern IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */
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extern IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */
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extern uchar *NetTxPacket; /* THE transmit packet */
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extern uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets */
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extern uchar *NetRxPacket; /* Current receive packet */
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extern int NetRxPacketLen; /* Current rx packet length */
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extern unsigned NetIPID; /* IP ID (counting) */
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extern uchar NetBcastAddr[6]; /* Ethernet boardcast address */
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extern uchar NetEtherNullAddr[6];
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#define VLAN_NONE 4095 /* untagged */
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#define VLAN_IDMASK 0x0fff /* mask of valid vlan id */
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extern ushort NetOurVLAN; /* Our VLAN */
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extern ushort NetOurNativeVLAN; /* Our Native VLAN */
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extern int NetRestartWrap; /* Tried all network devices */
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enum proto_t {
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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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/* from net/net.c */
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extern char BootFile[128]; /* Boot File name */
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#if defined(CONFIG_CMD_DNS)
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extern char *NetDNSResolve; /* The host to resolve */
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extern char *NetDNSenvvar; /* 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 IPaddr_t NetPingIP; /* 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 CDPNativeVLAN; /* CDP returned native VLAN */
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extern ushort CDPApplianceVLAN; /* CDP returned appliance VLAN */
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/*
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* Check for a CDP packet by examining the received MAC address field
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*/
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static inline int is_cdp_packet(const uchar *et_addr)
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{
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extern const uchar NetCDPAddr[6];
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return memcmp(et_addr, NetCDPAddr, 6) == 0;
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}
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#endif
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#if defined(CONFIG_CMD_SNTP)
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extern IPaddr_t NetNtpServerIP; /* the ip address to NTP */
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extern int NetTimeOffset; /* offset time from UTC */
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#endif
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#if defined(CONFIG_MCAST_TFTP)
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extern IPaddr_t Mcast_addr;
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#endif
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/* Initialize the network adapter */
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void net_init(void);
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int NetLoop(enum proto_t);
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/* Shutdown adapters and cleanup */
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void NetStop(void);
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/* Load failed. Start again. */
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void NetStartAgain(void);
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/* Get size of the ethernet header when we send */
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int NetEthHdrSize(void);
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/* Set ethernet header; returns the size of the header */
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int NetSetEther(uchar *, uchar *, uint);
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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, IPaddr_t dest, IPaddr_t source);
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void net_set_udp_header(uchar *pkt, IPaddr_t dest, int dport,
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int sport, int len);
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/**
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* compute_ip_checksum() - Compute IP checksum
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*
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* @addr: Address to check (must be 16-bit aligned)
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* @nbytes: Number of bytes to check (normally a multiple of 2)
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* @return 16-bit IP checksum
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*/
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unsigned compute_ip_checksum(const void *addr, unsigned nbytes);
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/**
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* add_ip_checksums() - add two IP checksums
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*
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* @offset: Offset of first sum (if odd we do a byte-swap)
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* @sum: First checksum
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* @new_sum: New checksum to add
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* @return updated 16-bit IP checksum
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*/
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unsigned add_ip_checksums(unsigned offset, unsigned sum, unsigned new_sum);
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/**
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* ip_checksum_ok() - check if a checksum is correct
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*
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* This works by making sure the checksum sums to 0
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*
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* @addr: Address to check (must be 16-bit aligned)
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* @nbytes: Number of bytes to check (normally a multiple of 2)
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* @return true if the checksum matches, false if not
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*/
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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 */
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void net_set_udp_handler(rxhand_f *); /* Set UDP RX packet handler */
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rxhand_f *net_get_arp_handler(void); /* Get ARP RX packet handler */
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void net_set_arp_handler(rxhand_f *); /* Set ARP RX packet handler */
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void net_set_icmp_handler(rxhand_icmp_f *f); /* Set ICMP RX handler */
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void NetSetTimeout(ulong, thand_f *);/* Set timeout handler */
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/* Network loop state */
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enum net_loop_state {
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NETLOOP_CONTINUE,
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NETLOOP_RESTART,
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NETLOOP_SUCCESS,
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NETLOOP_FAIL
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};
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extern enum net_loop_state net_state;
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static inline void net_set_state(enum net_loop_state state)
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{
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debug_cond(DEBUG_INT_STATE, "--- NetState set to %d\n", state);
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net_state = state;
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}
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/* Transmit a packet */
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static inline void NetSendPacket(uchar *pkt, int len)
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{
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(void) eth_send(pkt, len);
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}
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/*
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* Transmit "NetTxPacket" as UDP packet, performing ARP request if needed
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* (ether will be populated)
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*
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* @param ether Raw packet buffer
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* @param dest IP address to send the datagram to
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* @param dport Destination UDP port
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* @param sport Source UDP port
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* @param payload_len Length of data after the UDP header
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*/
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int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport,
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int sport, int payload_len);
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/* Processes a received packet */
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void NetReceive(uchar *, int);
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#ifdef CONFIG_NETCONSOLE
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void NcStart(void);
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int nc_input_packet(uchar *pkt, IPaddr_t src_ip, unsigned dest_port,
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unsigned src_port, unsigned len);
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#endif
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static inline __attribute__((always_inline)) int eth_is_on_demand_init(void)
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{
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#ifdef CONFIG_NETCONSOLE
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extern enum proto_t net_loop_last_protocol;
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return net_loop_last_protocol != NETCONS;
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#else
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return 1;
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#endif
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}
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static inline void eth_set_last_protocol(int protocol)
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{
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#ifdef CONFIG_NETCONSOLE
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extern enum proto_t net_loop_last_protocol;
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net_loop_last_protocol = protocol;
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#endif
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}
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|
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/*
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* Check if autoload is enabled. If so, use either NFS or TFTP to download
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* the boot file.
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*/
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void net_auto_load(void);
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|
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/*
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* The following functions are a bit ugly, but necessary to deal with
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* alignment restrictions on ARM.
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*
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* We're using inline functions, which had the smallest memory
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* footprint in our tests.
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*/
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/* return IP *in network byteorder* */
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static inline IPaddr_t NetReadIP(void *from)
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{
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IPaddr_t ip;
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memcpy((void *)&ip, (void *)from, sizeof(ip));
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return ip;
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}
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/* return ulong *in network byteorder* */
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static inline ulong NetReadLong(ulong *from)
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{
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ulong l;
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memcpy((void *)&l, (void *)from, sizeof(l));
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return l;
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}
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/* write IP *in network byteorder* */
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static inline void NetWriteIP(void *to, IPaddr_t ip)
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{
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memcpy(to, (void *)&ip, sizeof(ip));
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}
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/* copy IP */
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static inline void NetCopyIP(void *to, void *from)
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{
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memcpy((void *)to, from, sizeof(IPaddr_t));
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}
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/* copy ulong */
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static inline void NetCopyLong(ulong *to, ulong *from)
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|
{
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memcpy((void *)to, (void *)from, sizeof(ulong));
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}
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|
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/**
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|
* is_zero_ether_addr - Determine if give Ethernet address is all zeros.
|
|
* @addr: Pointer to a six-byte array containing the Ethernet address
|
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*
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|
* Return true if the address is all zeroes.
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|
*/
|
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static inline int is_zero_ether_addr(const u8 *addr)
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|
{
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return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
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}
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|
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/**
|
|
* is_multicast_ether_addr - Determine if the Ethernet address is a multicast.
|
|
* @addr: Pointer to a six-byte array containing the Ethernet address
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*
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* Return true if the address is a multicast address.
|
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* By definition the broadcast address is also a multicast address.
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*/
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static inline int is_multicast_ether_addr(const u8 *addr)
|
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{
|
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return 0x01 & addr[0];
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}
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|
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/*
|
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* is_broadcast_ether_addr - Determine if the Ethernet address is broadcast
|
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* @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)
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|
{
|
|
return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) ==
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0xff;
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|
}
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|
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/*
|
|
* 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);
|
|
}
|
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|
|
/**
|
|
* 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 */
|
|
void ip_to_string(IPaddr_t x, char *s);
|
|
|
|
/* Convert a string to ip address */
|
|
IPaddr_t string_to_ip(const char *s);
|
|
|
|
/* Convert a VLAN id to a string */
|
|
void VLAN_to_string(ushort x, char *s);
|
|
|
|
/* Convert a string to a vlan id */
|
|
ushort string_to_VLAN(const char *s);
|
|
|
|
/* read a VLAN id from an environment variable */
|
|
ushort getenv_VLAN(char *);
|
|
|
|
/* copy a filename (allow for "..." notation, limit length) */
|
|
void copy_filename(char *dst, const char *src, int size);
|
|
|
|
/* get a random source port */
|
|
unsigned int random_port(void);
|
|
|
|
/* Update U-Boot over TFTP */
|
|
int update_tftp(ulong addr);
|
|
|
|
/**********************************************************************/
|
|
|
|
#endif /* __NET_H__ */
|