mirror of
https://github.com/AsahiLinux/u-boot
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6ab1283092
The same basic parsing was implemented in tftp and nfs, so add a helper function to do the work once. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
972 lines
24 KiB
C
972 lines
24 KiB
C
/*
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* Copyright 1994, 1995, 2000 Neil Russell.
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* (See License)
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* Copyright 2000, 2001 DENX Software Engineering, Wolfgang Denk, wd@denx.de
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* Copyright 2011 Comelit Group SpA,
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* Luca Ceresoli <luca.ceresoli@comelit.it>
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*/
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#include <common.h>
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#include <command.h>
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#include <efi_loader.h>
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#include <mapmem.h>
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#include <net.h>
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#include <net/tftp.h>
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#include "bootp.h"
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#ifdef CONFIG_SYS_DIRECT_FLASH_TFTP
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#include <flash.h>
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#endif
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/* Well known TFTP port # */
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#define WELL_KNOWN_PORT 69
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/* Millisecs to timeout for lost pkt */
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#define TIMEOUT 5000UL
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#ifndef CONFIG_NET_RETRY_COUNT
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/* # of timeouts before giving up */
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# define TIMEOUT_COUNT 10
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#else
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# define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT * 2)
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#endif
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/* Number of "loading" hashes per line (for checking the image size) */
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#define HASHES_PER_LINE 65
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/*
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* TFTP operations.
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*/
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#define TFTP_RRQ 1
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#define TFTP_WRQ 2
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#define TFTP_DATA 3
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#define TFTP_ACK 4
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#define TFTP_ERROR 5
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#define TFTP_OACK 6
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static ulong timeout_ms = TIMEOUT;
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static int timeout_count_max = TIMEOUT_COUNT;
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static ulong time_start; /* Record time we started tftp */
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/*
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* These globals govern the timeout behavior when attempting a connection to a
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* TFTP server. tftp_timeout_ms specifies the number of milliseconds to
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* wait for the server to respond to initial connection. Second global,
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* tftp_timeout_count_max, gives the number of such connection retries.
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* tftp_timeout_count_max must be non-negative and tftp_timeout_ms must be
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* positive. The globals are meant to be set (and restored) by code needing
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* non-standard timeout behavior when initiating a TFTP transfer.
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*/
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ulong tftp_timeout_ms = TIMEOUT;
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int tftp_timeout_count_max = TIMEOUT_COUNT;
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enum {
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TFTP_ERR_UNDEFINED = 0,
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TFTP_ERR_FILE_NOT_FOUND = 1,
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TFTP_ERR_ACCESS_DENIED = 2,
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TFTP_ERR_DISK_FULL = 3,
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TFTP_ERR_UNEXPECTED_OPCODE = 4,
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TFTP_ERR_UNKNOWN_TRANSFER_ID = 5,
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TFTP_ERR_FILE_ALREADY_EXISTS = 6,
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};
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static struct in_addr tftp_remote_ip;
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/* The UDP port at their end */
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static int tftp_remote_port;
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/* The UDP port at our end */
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static int tftp_our_port;
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static int timeout_count;
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/* packet sequence number */
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static ulong tftp_cur_block;
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/* last packet sequence number received */
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static ulong tftp_prev_block;
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/* count of sequence number wraparounds */
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static ulong tftp_block_wrap;
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/* memory offset due to wrapping */
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static ulong tftp_block_wrap_offset;
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static int tftp_state;
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#ifdef CONFIG_TFTP_TSIZE
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/* The file size reported by the server */
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static int tftp_tsize;
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/* The number of hashes we printed */
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static short tftp_tsize_num_hash;
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#endif
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#ifdef CONFIG_CMD_TFTPPUT
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/* 1 if writing, else 0 */
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static int tftp_put_active;
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/* 1 if we have sent the last block */
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static int tftp_put_final_block_sent;
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#else
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#define tftp_put_active 0
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#endif
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#define STATE_SEND_RRQ 1
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#define STATE_DATA 2
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#define STATE_TOO_LARGE 3
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#define STATE_BAD_MAGIC 4
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#define STATE_OACK 5
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#define STATE_RECV_WRQ 6
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#define STATE_SEND_WRQ 7
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/* default TFTP block size */
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#define TFTP_BLOCK_SIZE 512
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/* sequence number is 16 bit */
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#define TFTP_SEQUENCE_SIZE ((ulong)(1<<16))
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#define DEFAULT_NAME_LEN (8 + 4 + 1)
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static char default_filename[DEFAULT_NAME_LEN];
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#ifndef CONFIG_TFTP_FILE_NAME_MAX_LEN
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#define MAX_LEN 128
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#else
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#define MAX_LEN CONFIG_TFTP_FILE_NAME_MAX_LEN
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#endif
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static char tftp_filename[MAX_LEN];
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/* 512 is poor choice for ethernet, MTU is typically 1500.
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* Minus eth.hdrs thats 1468. Can get 2x better throughput with
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* almost-MTU block sizes. At least try... fall back to 512 if need be.
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* (but those using CONFIG_IP_DEFRAG may want to set a larger block in cfg file)
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*/
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#ifdef CONFIG_TFTP_BLOCKSIZE
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#define TFTP_MTU_BLOCKSIZE CONFIG_TFTP_BLOCKSIZE
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#else
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#define TFTP_MTU_BLOCKSIZE 1468
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#endif
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static unsigned short tftp_block_size = TFTP_BLOCK_SIZE;
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static unsigned short tftp_block_size_option = TFTP_MTU_BLOCKSIZE;
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#ifdef CONFIG_MCAST_TFTP
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#include <malloc.h>
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#define MTFTP_BITMAPSIZE 0x1000
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static unsigned *tftp_mcast_bitmap;
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static int tftp_mcast_prev_hole;
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static int tftp_mcast_bitmap_size = MTFTP_BITMAPSIZE;
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static int tftp_mcast_disabled;
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static int tftp_mcast_master_client;
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static int tftp_mcast_active;
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static int tftp_mcast_port;
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/* can get 'last' block before done..*/
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static ulong tftp_mcast_ending_block;
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static void parse_multicast_oack(char *pkt, int len);
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static void mcast_cleanup(void)
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{
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if (net_mcast_addr)
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eth_mcast_join(net_mcast_addr, 0);
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if (tftp_mcast_bitmap)
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free(tftp_mcast_bitmap);
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tftp_mcast_bitmap = NULL;
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net_mcast_addr.s_addr = 0;
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tftp_mcast_active = 0;
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tftp_mcast_port = 0;
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tftp_mcast_ending_block = -1;
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}
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#endif /* CONFIG_MCAST_TFTP */
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static inline void store_block(int block, uchar *src, unsigned len)
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{
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ulong offset = block * tftp_block_size + tftp_block_wrap_offset;
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ulong newsize = offset + len;
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#ifdef CONFIG_SYS_DIRECT_FLASH_TFTP
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int i, rc = 0;
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for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
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/* start address in flash? */
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if (flash_info[i].flash_id == FLASH_UNKNOWN)
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continue;
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if (load_addr + offset >= flash_info[i].start[0]) {
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rc = 1;
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break;
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}
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}
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if (rc) { /* Flash is destination for this packet */
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rc = flash_write((char *)src, (ulong)(load_addr+offset), len);
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if (rc) {
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flash_perror(rc);
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net_set_state(NETLOOP_FAIL);
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return;
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}
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} else
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#endif /* CONFIG_SYS_DIRECT_FLASH_TFTP */
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{
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void *ptr = map_sysmem(load_addr + offset, len);
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memcpy(ptr, src, len);
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unmap_sysmem(ptr);
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}
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#ifdef CONFIG_MCAST_TFTP
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if (tftp_mcast_active)
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ext2_set_bit(block, tftp_mcast_bitmap);
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#endif
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if (net_boot_file_size < newsize)
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net_boot_file_size = newsize;
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}
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/* Clear our state ready for a new transfer */
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static void new_transfer(void)
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{
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tftp_prev_block = 0;
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tftp_block_wrap = 0;
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tftp_block_wrap_offset = 0;
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#ifdef CONFIG_CMD_TFTPPUT
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tftp_put_final_block_sent = 0;
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#endif
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}
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#ifdef CONFIG_CMD_TFTPPUT
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/**
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* Load the next block from memory to be sent over tftp.
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*
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* @param block Block number to send
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* @param dst Destination buffer for data
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* @param len Number of bytes in block (this one and every other)
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* @return number of bytes loaded
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*/
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static int load_block(unsigned block, uchar *dst, unsigned len)
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{
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/* We may want to get the final block from the previous set */
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ulong offset = ((int)block - 1) * len + tftp_block_wrap_offset;
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ulong tosend = len;
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tosend = min(net_boot_file_size - offset, tosend);
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(void)memcpy(dst, (void *)(save_addr + offset), tosend);
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debug("%s: block=%d, offset=%ld, len=%d, tosend=%ld\n", __func__,
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block, offset, len, tosend);
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return tosend;
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}
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#endif
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static void tftp_send(void);
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static void tftp_timeout_handler(void);
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/**********************************************************************/
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static void show_block_marker(void)
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{
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#ifdef CONFIG_TFTP_TSIZE
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if (tftp_tsize) {
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ulong pos = tftp_cur_block * tftp_block_size +
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tftp_block_wrap_offset;
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if (pos > tftp_tsize)
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pos = tftp_tsize;
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while (tftp_tsize_num_hash < pos * 50 / tftp_tsize) {
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putc('#');
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tftp_tsize_num_hash++;
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}
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} else
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#endif
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{
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if (((tftp_cur_block - 1) % 10) == 0)
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putc('#');
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else if ((tftp_cur_block % (10 * HASHES_PER_LINE)) == 0)
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puts("\n\t ");
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}
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}
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/**
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* restart the current transfer due to an error
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*
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* @param msg Message to print for user
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*/
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static void restart(const char *msg)
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{
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printf("\n%s; starting again\n", msg);
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#ifdef CONFIG_MCAST_TFTP
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mcast_cleanup();
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#endif
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net_start_again();
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}
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/*
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* Check if the block number has wrapped, and update progress
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*
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* TODO: The egregious use of global variables in this file should be tidied.
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*/
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static void update_block_number(void)
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{
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/*
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* RFC1350 specifies that the first data packet will
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* have sequence number 1. If we receive a sequence
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* number of 0 this means that there was a wrap
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* around of the (16 bit) counter.
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*/
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if (tftp_cur_block == 0 && tftp_prev_block != 0) {
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tftp_block_wrap++;
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tftp_block_wrap_offset += tftp_block_size * TFTP_SEQUENCE_SIZE;
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timeout_count = 0; /* we've done well, reset the timeout */
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} else {
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show_block_marker();
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}
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}
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/* The TFTP get or put is complete */
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static void tftp_complete(void)
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{
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#ifdef CONFIG_TFTP_TSIZE
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/* Print hash marks for the last packet received */
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while (tftp_tsize && tftp_tsize_num_hash < 49) {
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putc('#');
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tftp_tsize_num_hash++;
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}
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puts(" ");
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print_size(tftp_tsize, "");
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#endif
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time_start = get_timer(time_start);
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if (time_start > 0) {
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puts("\n\t "); /* Line up with "Loading: " */
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print_size(net_boot_file_size /
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time_start * 1000, "/s");
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}
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puts("\ndone\n");
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net_set_state(NETLOOP_SUCCESS);
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}
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static void tftp_send(void)
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{
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uchar *pkt;
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uchar *xp;
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int len = 0;
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ushort *s;
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#ifdef CONFIG_MCAST_TFTP
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/* Multicast TFTP.. non-MasterClients do not ACK data. */
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if (tftp_mcast_active && tftp_state == STATE_DATA &&
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tftp_mcast_master_client == 0)
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return;
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#endif
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/*
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* We will always be sending some sort of packet, so
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* cobble together the packet headers now.
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*/
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pkt = net_tx_packet + net_eth_hdr_size() + IP_UDP_HDR_SIZE;
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switch (tftp_state) {
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case STATE_SEND_RRQ:
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case STATE_SEND_WRQ:
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xp = pkt;
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s = (ushort *)pkt;
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#ifdef CONFIG_CMD_TFTPPUT
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*s++ = htons(tftp_state == STATE_SEND_RRQ ? TFTP_RRQ :
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TFTP_WRQ);
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#else
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*s++ = htons(TFTP_RRQ);
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#endif
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pkt = (uchar *)s;
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strcpy((char *)pkt, tftp_filename);
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pkt += strlen(tftp_filename) + 1;
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strcpy((char *)pkt, "octet");
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pkt += 5 /*strlen("octet")*/ + 1;
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strcpy((char *)pkt, "timeout");
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pkt += 7 /*strlen("timeout")*/ + 1;
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sprintf((char *)pkt, "%lu", timeout_ms / 1000);
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debug("send option \"timeout %s\"\n", (char *)pkt);
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pkt += strlen((char *)pkt) + 1;
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#ifdef CONFIG_TFTP_TSIZE
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pkt += sprintf((char *)pkt, "tsize%c%u%c",
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0, net_boot_file_size, 0);
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#endif
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/* try for more effic. blk size */
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pkt += sprintf((char *)pkt, "blksize%c%d%c",
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0, tftp_block_size_option, 0);
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#ifdef CONFIG_MCAST_TFTP
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/* Check all preconditions before even trying the option */
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if (!tftp_mcast_disabled) {
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tftp_mcast_bitmap = malloc(tftp_mcast_bitmap_size);
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if (tftp_mcast_bitmap && eth_get_dev()->mcast) {
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free(tftp_mcast_bitmap);
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tftp_mcast_bitmap = NULL;
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pkt += sprintf((char *)pkt, "multicast%c%c",
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0, 0);
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}
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}
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#endif /* CONFIG_MCAST_TFTP */
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len = pkt - xp;
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break;
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case STATE_OACK:
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#ifdef CONFIG_MCAST_TFTP
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/* My turn! Start at where I need blocks I missed. */
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if (tftp_mcast_active)
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tftp_cur_block = ext2_find_next_zero_bit(
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tftp_mcast_bitmap,
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tftp_mcast_bitmap_size * 8, 0);
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/* fall through */
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#endif
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case STATE_RECV_WRQ:
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case STATE_DATA:
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xp = pkt;
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s = (ushort *)pkt;
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s[0] = htons(TFTP_ACK);
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s[1] = htons(tftp_cur_block);
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pkt = (uchar *)(s + 2);
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#ifdef CONFIG_CMD_TFTPPUT
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if (tftp_put_active) {
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int toload = tftp_block_size;
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int loaded = load_block(tftp_cur_block, pkt, toload);
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s[0] = htons(TFTP_DATA);
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pkt += loaded;
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tftp_put_final_block_sent = (loaded < toload);
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}
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#endif
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len = pkt - xp;
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break;
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case STATE_TOO_LARGE:
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xp = pkt;
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s = (ushort *)pkt;
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*s++ = htons(TFTP_ERROR);
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*s++ = htons(3);
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pkt = (uchar *)s;
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strcpy((char *)pkt, "File too large");
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pkt += 14 /*strlen("File too large")*/ + 1;
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len = pkt - xp;
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break;
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case STATE_BAD_MAGIC:
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xp = pkt;
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s = (ushort *)pkt;
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*s++ = htons(TFTP_ERROR);
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*s++ = htons(2);
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pkt = (uchar *)s;
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strcpy((char *)pkt, "File has bad magic");
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pkt += 18 /*strlen("File has bad magic")*/ + 1;
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len = pkt - xp;
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break;
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}
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net_send_udp_packet(net_server_ethaddr, tftp_remote_ip,
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tftp_remote_port, tftp_our_port, len);
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}
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#ifdef CONFIG_CMD_TFTPPUT
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static void icmp_handler(unsigned type, unsigned code, unsigned dest,
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struct in_addr sip, unsigned src, uchar *pkt,
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unsigned len)
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{
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if (type == ICMP_NOT_REACH && code == ICMP_NOT_REACH_PORT) {
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/* Oh dear the other end has gone away */
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restart("TFTP server died");
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}
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}
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#endif
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static void tftp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
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unsigned src, unsigned len)
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{
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__be16 proto;
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__be16 *s;
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int i;
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if (dest != tftp_our_port) {
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#ifdef CONFIG_MCAST_TFTP
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if (tftp_mcast_active &&
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(!tftp_mcast_port || dest != tftp_mcast_port))
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#endif
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return;
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}
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if (tftp_state != STATE_SEND_RRQ && src != tftp_remote_port &&
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tftp_state != STATE_RECV_WRQ && tftp_state != STATE_SEND_WRQ)
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return;
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if (len < 2)
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return;
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len -= 2;
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/* warning: don't use increment (++) in ntohs() macros!! */
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s = (__be16 *)pkt;
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proto = *s++;
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pkt = (uchar *)s;
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switch (ntohs(proto)) {
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case TFTP_RRQ:
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break;
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case TFTP_ACK:
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#ifdef CONFIG_CMD_TFTPPUT
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if (tftp_put_active) {
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if (tftp_put_final_block_sent) {
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tftp_complete();
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} else {
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/*
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* Move to the next block. We want our block
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* count to wrap just like the other end!
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*/
|
|
int block = ntohs(*s);
|
|
int ack_ok = (tftp_cur_block == block);
|
|
|
|
tftp_cur_block = (unsigned short)(block + 1);
|
|
update_block_number();
|
|
if (ack_ok)
|
|
tftp_send(); /* Send next data block */
|
|
}
|
|
}
|
|
#endif
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
|
|
#ifdef CONFIG_CMD_TFTPSRV
|
|
case TFTP_WRQ:
|
|
debug("Got WRQ\n");
|
|
tftp_remote_ip = sip;
|
|
tftp_remote_port = src;
|
|
tftp_our_port = 1024 + (get_timer(0) % 3072);
|
|
new_transfer();
|
|
tftp_send(); /* Send ACK(0) */
|
|
break;
|
|
#endif
|
|
|
|
case TFTP_OACK:
|
|
debug("Got OACK: %s %s\n",
|
|
pkt, pkt + strlen((char *)pkt) + 1);
|
|
tftp_state = STATE_OACK;
|
|
tftp_remote_port = src;
|
|
/*
|
|
* Check for 'blksize' option.
|
|
* Careful: "i" is signed, "len" is unsigned, thus
|
|
* something like "len-8" may give a *huge* number
|
|
*/
|
|
for (i = 0; i+8 < len; i++) {
|
|
if (strcmp((char *)pkt + i, "blksize") == 0) {
|
|
tftp_block_size = (unsigned short)
|
|
simple_strtoul((char *)pkt + i + 8,
|
|
NULL, 10);
|
|
debug("Blocksize ack: %s, %d\n",
|
|
(char *)pkt + i + 8, tftp_block_size);
|
|
}
|
|
#ifdef CONFIG_TFTP_TSIZE
|
|
if (strcmp((char *)pkt+i, "tsize") == 0) {
|
|
tftp_tsize = simple_strtoul((char *)pkt + i + 6,
|
|
NULL, 10);
|
|
debug("size = %s, %d\n",
|
|
(char *)pkt + i + 6, tftp_tsize);
|
|
}
|
|
#endif
|
|
}
|
|
#ifdef CONFIG_MCAST_TFTP
|
|
parse_multicast_oack((char *)pkt, len - 1);
|
|
if ((tftp_mcast_active) && (!tftp_mcast_master_client))
|
|
tftp_state = STATE_DATA; /* passive.. */
|
|
else
|
|
#endif
|
|
#ifdef CONFIG_CMD_TFTPPUT
|
|
if (tftp_put_active) {
|
|
/* Get ready to send the first block */
|
|
tftp_state = STATE_DATA;
|
|
tftp_cur_block++;
|
|
}
|
|
#endif
|
|
tftp_send(); /* Send ACK or first data block */
|
|
break;
|
|
case TFTP_DATA:
|
|
if (len < 2)
|
|
return;
|
|
len -= 2;
|
|
tftp_cur_block = ntohs(*(__be16 *)pkt);
|
|
|
|
update_block_number();
|
|
|
|
if (tftp_state == STATE_SEND_RRQ)
|
|
debug("Server did not acknowledge timeout option!\n");
|
|
|
|
if (tftp_state == STATE_SEND_RRQ || tftp_state == STATE_OACK ||
|
|
tftp_state == STATE_RECV_WRQ) {
|
|
/* first block received */
|
|
tftp_state = STATE_DATA;
|
|
tftp_remote_port = src;
|
|
new_transfer();
|
|
|
|
#ifdef CONFIG_MCAST_TFTP
|
|
if (tftp_mcast_active) { /* start!=1 common if mcast */
|
|
tftp_prev_block = tftp_cur_block - 1;
|
|
} else
|
|
#endif
|
|
if (tftp_cur_block != 1) { /* Assertion */
|
|
puts("\nTFTP error: ");
|
|
printf("First block is not block 1 (%ld)\n",
|
|
tftp_cur_block);
|
|
puts("Starting again\n\n");
|
|
net_start_again();
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (tftp_cur_block == tftp_prev_block) {
|
|
/* Same block again; ignore it. */
|
|
break;
|
|
}
|
|
|
|
tftp_prev_block = tftp_cur_block;
|
|
timeout_count_max = tftp_timeout_count_max;
|
|
net_set_timeout_handler(timeout_ms, tftp_timeout_handler);
|
|
|
|
store_block(tftp_cur_block - 1, pkt + 2, len);
|
|
|
|
/*
|
|
* Acknowledge the block just received, which will prompt
|
|
* the remote for the next one.
|
|
*/
|
|
#ifdef CONFIG_MCAST_TFTP
|
|
/* if I am the MasterClient, actively calculate what my next
|
|
* needed block is; else I'm passive; not ACKING
|
|
*/
|
|
if (tftp_mcast_active) {
|
|
if (len < tftp_block_size) {
|
|
tftp_mcast_ending_block = tftp_cur_block;
|
|
} else if (tftp_mcast_master_client) {
|
|
tftp_mcast_prev_hole = ext2_find_next_zero_bit(
|
|
tftp_mcast_bitmap,
|
|
tftp_mcast_bitmap_size * 8,
|
|
tftp_mcast_prev_hole);
|
|
tftp_cur_block = tftp_mcast_prev_hole;
|
|
if (tftp_cur_block >
|
|
((tftp_mcast_bitmap_size * 8) - 1)) {
|
|
debug("tftpfile too big\n");
|
|
/* try to double it and retry */
|
|
tftp_mcast_bitmap_size <<= 1;
|
|
mcast_cleanup();
|
|
net_start_again();
|
|
return;
|
|
}
|
|
tftp_prev_block = tftp_cur_block;
|
|
}
|
|
}
|
|
#endif
|
|
tftp_send();
|
|
|
|
#ifdef CONFIG_MCAST_TFTP
|
|
if (tftp_mcast_active) {
|
|
if (tftp_mcast_master_client &&
|
|
(tftp_cur_block >= tftp_mcast_ending_block)) {
|
|
puts("\nMulticast tftp done\n");
|
|
mcast_cleanup();
|
|
net_set_state(NETLOOP_SUCCESS);
|
|
}
|
|
} else
|
|
#endif
|
|
if (len < tftp_block_size)
|
|
tftp_complete();
|
|
break;
|
|
|
|
case TFTP_ERROR:
|
|
printf("\nTFTP error: '%s' (%d)\n",
|
|
pkt + 2, ntohs(*(__be16 *)pkt));
|
|
|
|
switch (ntohs(*(__be16 *)pkt)) {
|
|
case TFTP_ERR_FILE_NOT_FOUND:
|
|
case TFTP_ERR_ACCESS_DENIED:
|
|
puts("Not retrying...\n");
|
|
eth_halt();
|
|
net_set_state(NETLOOP_FAIL);
|
|
break;
|
|
case TFTP_ERR_UNDEFINED:
|
|
case TFTP_ERR_DISK_FULL:
|
|
case TFTP_ERR_UNEXPECTED_OPCODE:
|
|
case TFTP_ERR_UNKNOWN_TRANSFER_ID:
|
|
case TFTP_ERR_FILE_ALREADY_EXISTS:
|
|
default:
|
|
puts("Starting again\n\n");
|
|
#ifdef CONFIG_MCAST_TFTP
|
|
mcast_cleanup();
|
|
#endif
|
|
net_start_again();
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
static void tftp_timeout_handler(void)
|
|
{
|
|
if (++timeout_count > timeout_count_max) {
|
|
restart("Retry count exceeded");
|
|
} else {
|
|
puts("T ");
|
|
net_set_timeout_handler(timeout_ms, tftp_timeout_handler);
|
|
if (tftp_state != STATE_RECV_WRQ)
|
|
tftp_send();
|
|
}
|
|
}
|
|
|
|
|
|
void tftp_start(enum proto_t protocol)
|
|
{
|
|
#if CONFIG_NET_TFTP_VARS
|
|
char *ep; /* Environment pointer */
|
|
|
|
/*
|
|
* Allow the user to choose TFTP blocksize and timeout.
|
|
* TFTP protocol has a minimal timeout of 1 second.
|
|
*/
|
|
|
|
ep = env_get("tftpblocksize");
|
|
if (ep != NULL)
|
|
tftp_block_size_option = simple_strtol(ep, NULL, 10);
|
|
|
|
ep = env_get("tftptimeout");
|
|
if (ep != NULL)
|
|
timeout_ms = simple_strtol(ep, NULL, 10);
|
|
|
|
if (timeout_ms < 1000) {
|
|
printf("TFTP timeout (%ld ms) too low, set min = 1000 ms\n",
|
|
timeout_ms);
|
|
timeout_ms = 1000;
|
|
}
|
|
|
|
ep = env_get("tftptimeoutcountmax");
|
|
if (ep != NULL)
|
|
tftp_timeout_count_max = simple_strtol(ep, NULL, 10);
|
|
|
|
if (tftp_timeout_count_max < 0) {
|
|
printf("TFTP timeout count max (%d ms) negative, set to 0\n",
|
|
tftp_timeout_count_max);
|
|
tftp_timeout_count_max = 0;
|
|
}
|
|
#endif
|
|
|
|
debug("TFTP blocksize = %i, timeout = %ld ms\n",
|
|
tftp_block_size_option, timeout_ms);
|
|
|
|
tftp_remote_ip = net_server_ip;
|
|
if (!net_parse_bootfile(&tftp_remote_ip, tftp_filename, MAX_LEN)) {
|
|
sprintf(default_filename, "%02X%02X%02X%02X.img",
|
|
net_ip.s_addr & 0xFF,
|
|
(net_ip.s_addr >> 8) & 0xFF,
|
|
(net_ip.s_addr >> 16) & 0xFF,
|
|
(net_ip.s_addr >> 24) & 0xFF);
|
|
|
|
strncpy(tftp_filename, default_filename, DEFAULT_NAME_LEN);
|
|
tftp_filename[DEFAULT_NAME_LEN - 1] = 0;
|
|
|
|
printf("*** Warning: no boot file name; using '%s'\n",
|
|
tftp_filename);
|
|
}
|
|
|
|
printf("Using %s device\n", eth_get_name());
|
|
printf("TFTP %s server %pI4; our IP address is %pI4",
|
|
#ifdef CONFIG_CMD_TFTPPUT
|
|
protocol == TFTPPUT ? "to" : "from",
|
|
#else
|
|
"from",
|
|
#endif
|
|
&tftp_remote_ip, &net_ip);
|
|
|
|
/* Check if we need to send across this subnet */
|
|
if (net_gateway.s_addr && net_netmask.s_addr) {
|
|
struct in_addr our_net;
|
|
struct in_addr remote_net;
|
|
|
|
our_net.s_addr = net_ip.s_addr & net_netmask.s_addr;
|
|
remote_net.s_addr = tftp_remote_ip.s_addr & net_netmask.s_addr;
|
|
if (our_net.s_addr != remote_net.s_addr)
|
|
printf("; sending through gateway %pI4", &net_gateway);
|
|
}
|
|
putc('\n');
|
|
|
|
printf("Filename '%s'.", tftp_filename);
|
|
|
|
if (net_boot_file_expected_size_in_blocks) {
|
|
printf(" Size is 0x%x Bytes = ",
|
|
net_boot_file_expected_size_in_blocks << 9);
|
|
print_size(net_boot_file_expected_size_in_blocks << 9, "");
|
|
}
|
|
|
|
putc('\n');
|
|
#ifdef CONFIG_CMD_TFTPPUT
|
|
tftp_put_active = (protocol == TFTPPUT);
|
|
if (tftp_put_active) {
|
|
printf("Save address: 0x%lx\n", save_addr);
|
|
printf("Save size: 0x%lx\n", save_size);
|
|
net_boot_file_size = save_size;
|
|
puts("Saving: *\b");
|
|
tftp_state = STATE_SEND_WRQ;
|
|
new_transfer();
|
|
} else
|
|
#endif
|
|
{
|
|
printf("Load address: 0x%lx\n", load_addr);
|
|
puts("Loading: *\b");
|
|
tftp_state = STATE_SEND_RRQ;
|
|
#ifdef CONFIG_CMD_BOOTEFI
|
|
efi_set_bootdev("Net", "", tftp_filename);
|
|
#endif
|
|
}
|
|
|
|
time_start = get_timer(0);
|
|
timeout_count_max = tftp_timeout_count_max;
|
|
|
|
net_set_timeout_handler(timeout_ms, tftp_timeout_handler);
|
|
net_set_udp_handler(tftp_handler);
|
|
#ifdef CONFIG_CMD_TFTPPUT
|
|
net_set_icmp_handler(icmp_handler);
|
|
#endif
|
|
tftp_remote_port = WELL_KNOWN_PORT;
|
|
timeout_count = 0;
|
|
/* Use a pseudo-random port unless a specific port is set */
|
|
tftp_our_port = 1024 + (get_timer(0) % 3072);
|
|
|
|
#ifdef CONFIG_TFTP_PORT
|
|
ep = env_get("tftpdstp");
|
|
if (ep != NULL)
|
|
tftp_remote_port = simple_strtol(ep, NULL, 10);
|
|
ep = env_get("tftpsrcp");
|
|
if (ep != NULL)
|
|
tftp_our_port = simple_strtol(ep, NULL, 10);
|
|
#endif
|
|
tftp_cur_block = 0;
|
|
|
|
/* zero out server ether in case the server ip has changed */
|
|
memset(net_server_ethaddr, 0, 6);
|
|
/* Revert tftp_block_size to dflt */
|
|
tftp_block_size = TFTP_BLOCK_SIZE;
|
|
#ifdef CONFIG_MCAST_TFTP
|
|
mcast_cleanup();
|
|
#endif
|
|
#ifdef CONFIG_TFTP_TSIZE
|
|
tftp_tsize = 0;
|
|
tftp_tsize_num_hash = 0;
|
|
#endif
|
|
|
|
tftp_send();
|
|
}
|
|
|
|
#ifdef CONFIG_CMD_TFTPSRV
|
|
void tftp_start_server(void)
|
|
{
|
|
tftp_filename[0] = 0;
|
|
|
|
printf("Using %s device\n", eth_get_name());
|
|
printf("Listening for TFTP transfer on %pI4\n", &net_ip);
|
|
printf("Load address: 0x%lx\n", load_addr);
|
|
|
|
puts("Loading: *\b");
|
|
|
|
timeout_count_max = tftp_timeout_count_max;
|
|
timeout_count = 0;
|
|
timeout_ms = TIMEOUT;
|
|
net_set_timeout_handler(timeout_ms, tftp_timeout_handler);
|
|
|
|
/* Revert tftp_block_size to dflt */
|
|
tftp_block_size = TFTP_BLOCK_SIZE;
|
|
tftp_cur_block = 0;
|
|
tftp_our_port = WELL_KNOWN_PORT;
|
|
|
|
#ifdef CONFIG_TFTP_TSIZE
|
|
tftp_tsize = 0;
|
|
tftp_tsize_num_hash = 0;
|
|
#endif
|
|
|
|
tftp_state = STATE_RECV_WRQ;
|
|
net_set_udp_handler(tftp_handler);
|
|
|
|
/* zero out server ether in case the server ip has changed */
|
|
memset(net_server_ethaddr, 0, 6);
|
|
}
|
|
#endif /* CONFIG_CMD_TFTPSRV */
|
|
|
|
#ifdef CONFIG_MCAST_TFTP
|
|
/*
|
|
* Credits: atftp project.
|
|
*/
|
|
|
|
/*
|
|
* Pick up BcastAddr, Port, and whether I am [now] the master-client.
|
|
* Frame:
|
|
* +-------+-----------+---+-------~~-------+---+
|
|
* | opc | multicast | 0 | addr, port, mc | 0 |
|
|
* +-------+-----------+---+-------~~-------+---+
|
|
* The multicast addr/port becomes what I listen to, and if 'mc' is '1' then
|
|
* I am the new master-client so must send ACKs to DataBlocks. If I am not
|
|
* master-client, I'm a passive client, gathering what DataBlocks I may and
|
|
* making note of which ones I got in my bitmask.
|
|
* In theory, I never go from master->passive..
|
|
* .. this comes in with pkt already pointing just past opc
|
|
*/
|
|
static void parse_multicast_oack(char *pkt, int len)
|
|
{
|
|
int i;
|
|
struct in_addr addr;
|
|
char *mc_adr;
|
|
char *port;
|
|
char *mc;
|
|
|
|
mc_adr = NULL;
|
|
port = NULL;
|
|
mc = NULL;
|
|
/* march along looking for 'multicast\0', which has to start at least
|
|
* 14 bytes back from the end.
|
|
*/
|
|
for (i = 0; i < len - 14; i++)
|
|
if (strcmp(pkt + i, "multicast") == 0)
|
|
break;
|
|
if (i >= (len - 14)) /* non-Multicast OACK, ign. */
|
|
return;
|
|
|
|
i += 10; /* strlen multicast */
|
|
mc_adr = pkt + i;
|
|
for (; i < len; i++) {
|
|
if (*(pkt + i) == ',') {
|
|
*(pkt + i) = '\0';
|
|
if (port) {
|
|
mc = pkt + i + 1;
|
|
break;
|
|
} else {
|
|
port = pkt + i + 1;
|
|
}
|
|
}
|
|
}
|
|
if (!port || !mc_adr || !mc)
|
|
return;
|
|
if (tftp_mcast_active && tftp_mcast_master_client) {
|
|
printf("I got a OACK as master Client, WRONG!\n");
|
|
return;
|
|
}
|
|
/* ..I now accept packets destined for this MCAST addr, port */
|
|
if (!tftp_mcast_active) {
|
|
if (tftp_mcast_bitmap) {
|
|
printf("Internal failure! no mcast.\n");
|
|
free(tftp_mcast_bitmap);
|
|
tftp_mcast_bitmap = NULL;
|
|
tftp_mcast_disabled = 1;
|
|
return;
|
|
}
|
|
/* I malloc instead of pre-declare; so that if the file ends
|
|
* up being too big for this bitmap I can retry
|
|
*/
|
|
tftp_mcast_bitmap = malloc(tftp_mcast_bitmap_size);
|
|
if (!tftp_mcast_bitmap) {
|
|
printf("No bitmap, no multicast. Sorry.\n");
|
|
tftp_mcast_disabled = 1;
|
|
return;
|
|
}
|
|
memset(tftp_mcast_bitmap, 0, tftp_mcast_bitmap_size);
|
|
tftp_mcast_prev_hole = 0;
|
|
tftp_mcast_active = 1;
|
|
}
|
|
addr = string_to_ip(mc_adr);
|
|
if (net_mcast_addr.s_addr != addr.s_addr) {
|
|
if (net_mcast_addr.s_addr)
|
|
eth_mcast_join(net_mcast_addr, 0);
|
|
net_mcast_addr = addr;
|
|
if (eth_mcast_join(net_mcast_addr, 1)) {
|
|
printf("Fail to set mcast, revert to TFTP\n");
|
|
tftp_mcast_disabled = 1;
|
|
mcast_cleanup();
|
|
net_start_again();
|
|
}
|
|
}
|
|
tftp_mcast_master_client = simple_strtoul((char *)mc, NULL, 10);
|
|
tftp_mcast_port = (unsigned short)simple_strtoul(port, NULL, 10);
|
|
printf("Multicast: %s:%d [%d]\n", mc_adr, tftp_mcast_port,
|
|
tftp_mcast_master_client);
|
|
return;
|
|
}
|
|
|
|
#endif /* Multicast TFTP */
|