mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
972 lines
24 KiB
972 lines
24 KiB
/* |
|
* Copyright 1994, 1995, 2000 Neil Russell. |
|
* (See License) |
|
* Copyright 2000, 2001 DENX Software Engineering, Wolfgang Denk, [email protected] |
|
* Copyright 2011 Comelit Group SpA, |
|
* Luca Ceresoli <[email protected]> |
|
*/ |
|
|
|
#include <common.h> |
|
#include <command.h> |
|
#include <efi_loader.h> |
|
#include <mapmem.h> |
|
#include <net.h> |
|
#include <net/tftp.h> |
|
#include "bootp.h" |
|
#ifdef CONFIG_SYS_DIRECT_FLASH_TFTP |
|
#include <flash.h> |
|
#endif |
|
|
|
/* Well known TFTP port # */ |
|
#define WELL_KNOWN_PORT 69 |
|
/* Millisecs to timeout for lost pkt */ |
|
#define TIMEOUT 5000UL |
|
#ifndef CONFIG_NET_RETRY_COUNT |
|
/* # of timeouts before giving up */ |
|
# define TIMEOUT_COUNT 10 |
|
#else |
|
# define TIMEOUT_COUNT (CONFIG_NET_RETRY_COUNT * 2) |
|
#endif |
|
/* Number of "loading" hashes per line (for checking the image size) */ |
|
#define HASHES_PER_LINE 65 |
|
|
|
/* |
|
* TFTP operations. |
|
*/ |
|
#define TFTP_RRQ 1 |
|
#define TFTP_WRQ 2 |
|
#define TFTP_DATA 3 |
|
#define TFTP_ACK 4 |
|
#define TFTP_ERROR 5 |
|
#define TFTP_OACK 6 |
|
|
|
static ulong timeout_ms = TIMEOUT; |
|
static int timeout_count_max = TIMEOUT_COUNT; |
|
static ulong time_start; /* Record time we started tftp */ |
|
|
|
/* |
|
* These globals govern the timeout behavior when attempting a connection to a |
|
* TFTP server. tftp_timeout_ms specifies the number of milliseconds to |
|
* wait for the server to respond to initial connection. Second global, |
|
* tftp_timeout_count_max, gives the number of such connection retries. |
|
* tftp_timeout_count_max must be non-negative and tftp_timeout_ms must be |
|
* positive. The globals are meant to be set (and restored) by code needing |
|
* non-standard timeout behavior when initiating a TFTP transfer. |
|
*/ |
|
ulong tftp_timeout_ms = TIMEOUT; |
|
int tftp_timeout_count_max = TIMEOUT_COUNT; |
|
|
|
enum { |
|
TFTP_ERR_UNDEFINED = 0, |
|
TFTP_ERR_FILE_NOT_FOUND = 1, |
|
TFTP_ERR_ACCESS_DENIED = 2, |
|
TFTP_ERR_DISK_FULL = 3, |
|
TFTP_ERR_UNEXPECTED_OPCODE = 4, |
|
TFTP_ERR_UNKNOWN_TRANSFER_ID = 5, |
|
TFTP_ERR_FILE_ALREADY_EXISTS = 6, |
|
}; |
|
|
|
static struct in_addr tftp_remote_ip; |
|
/* The UDP port at their end */ |
|
static int tftp_remote_port; |
|
/* The UDP port at our end */ |
|
static int tftp_our_port; |
|
static int timeout_count; |
|
/* packet sequence number */ |
|
static ulong tftp_cur_block; |
|
/* last packet sequence number received */ |
|
static ulong tftp_prev_block; |
|
/* count of sequence number wraparounds */ |
|
static ulong tftp_block_wrap; |
|
/* memory offset due to wrapping */ |
|
static ulong tftp_block_wrap_offset; |
|
static int tftp_state; |
|
#ifdef CONFIG_TFTP_TSIZE |
|
/* The file size reported by the server */ |
|
static int tftp_tsize; |
|
/* The number of hashes we printed */ |
|
static short tftp_tsize_num_hash; |
|
#endif |
|
#ifdef CONFIG_CMD_TFTPPUT |
|
/* 1 if writing, else 0 */ |
|
static int tftp_put_active; |
|
/* 1 if we have sent the last block */ |
|
static int tftp_put_final_block_sent; |
|
#else |
|
#define tftp_put_active 0 |
|
#endif |
|
|
|
#define STATE_SEND_RRQ 1 |
|
#define STATE_DATA 2 |
|
#define STATE_TOO_LARGE 3 |
|
#define STATE_BAD_MAGIC 4 |
|
#define STATE_OACK 5 |
|
#define STATE_RECV_WRQ 6 |
|
#define STATE_SEND_WRQ 7 |
|
|
|
/* default TFTP block size */ |
|
#define TFTP_BLOCK_SIZE 512 |
|
/* sequence number is 16 bit */ |
|
#define TFTP_SEQUENCE_SIZE ((ulong)(1<<16)) |
|
|
|
#define DEFAULT_NAME_LEN (8 + 4 + 1) |
|
static char default_filename[DEFAULT_NAME_LEN]; |
|
|
|
#ifndef CONFIG_TFTP_FILE_NAME_MAX_LEN |
|
#define MAX_LEN 128 |
|
#else |
|
#define MAX_LEN CONFIG_TFTP_FILE_NAME_MAX_LEN |
|
#endif |
|
|
|
static char tftp_filename[MAX_LEN]; |
|
|
|
/* 512 is poor choice for ethernet, MTU is typically 1500. |
|
* Minus eth.hdrs thats 1468. Can get 2x better throughput with |
|
* almost-MTU block sizes. At least try... fall back to 512 if need be. |
|
* (but those using CONFIG_IP_DEFRAG may want to set a larger block in cfg file) |
|
*/ |
|
#ifdef CONFIG_TFTP_BLOCKSIZE |
|
#define TFTP_MTU_BLOCKSIZE CONFIG_TFTP_BLOCKSIZE |
|
#else |
|
#define TFTP_MTU_BLOCKSIZE 1468 |
|
#endif |
|
|
|
static unsigned short tftp_block_size = TFTP_BLOCK_SIZE; |
|
static unsigned short tftp_block_size_option = TFTP_MTU_BLOCKSIZE; |
|
|
|
#ifdef CONFIG_MCAST_TFTP |
|
#include <malloc.h> |
|
#define MTFTP_BITMAPSIZE 0x1000 |
|
static unsigned *tftp_mcast_bitmap; |
|
static int tftp_mcast_prev_hole; |
|
static int tftp_mcast_bitmap_size = MTFTP_BITMAPSIZE; |
|
static int tftp_mcast_disabled; |
|
static int tftp_mcast_master_client; |
|
static int tftp_mcast_active; |
|
static int tftp_mcast_port; |
|
/* can get 'last' block before done..*/ |
|
static ulong tftp_mcast_ending_block; |
|
|
|
static void parse_multicast_oack(char *pkt, int len); |
|
|
|
static void mcast_cleanup(void) |
|
{ |
|
if (net_mcast_addr) |
|
eth_mcast_join(net_mcast_addr, 0); |
|
if (tftp_mcast_bitmap) |
|
free(tftp_mcast_bitmap); |
|
tftp_mcast_bitmap = NULL; |
|
net_mcast_addr.s_addr = 0; |
|
tftp_mcast_active = 0; |
|
tftp_mcast_port = 0; |
|
tftp_mcast_ending_block = -1; |
|
} |
|
|
|
#endif /* CONFIG_MCAST_TFTP */ |
|
|
|
static inline void store_block(int block, uchar *src, unsigned len) |
|
{ |
|
ulong offset = block * tftp_block_size + tftp_block_wrap_offset; |
|
ulong newsize = offset + len; |
|
#ifdef CONFIG_SYS_DIRECT_FLASH_TFTP |
|
int i, rc = 0; |
|
|
|
for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { |
|
/* start address in flash? */ |
|
if (flash_info[i].flash_id == FLASH_UNKNOWN) |
|
continue; |
|
if (load_addr + offset >= flash_info[i].start[0]) { |
|
rc = 1; |
|
break; |
|
} |
|
} |
|
|
|
if (rc) { /* Flash is destination for this packet */ |
|
rc = flash_write((char *)src, (ulong)(load_addr+offset), len); |
|
if (rc) { |
|
flash_perror(rc); |
|
net_set_state(NETLOOP_FAIL); |
|
return; |
|
} |
|
} else |
|
#endif /* CONFIG_SYS_DIRECT_FLASH_TFTP */ |
|
{ |
|
void *ptr = map_sysmem(load_addr + offset, len); |
|
|
|
memcpy(ptr, src, len); |
|
unmap_sysmem(ptr); |
|
} |
|
#ifdef CONFIG_MCAST_TFTP |
|
if (tftp_mcast_active) |
|
ext2_set_bit(block, tftp_mcast_bitmap); |
|
#endif |
|
|
|
if (net_boot_file_size < newsize) |
|
net_boot_file_size = newsize; |
|
} |
|
|
|
/* Clear our state ready for a new transfer */ |
|
static void new_transfer(void) |
|
{ |
|
tftp_prev_block = 0; |
|
tftp_block_wrap = 0; |
|
tftp_block_wrap_offset = 0; |
|
#ifdef CONFIG_CMD_TFTPPUT |
|
tftp_put_final_block_sent = 0; |
|
#endif |
|
} |
|
|
|
#ifdef CONFIG_CMD_TFTPPUT |
|
/** |
|
* Load the next block from memory to be sent over tftp. |
|
* |
|
* @param block Block number to send |
|
* @param dst Destination buffer for data |
|
* @param len Number of bytes in block (this one and every other) |
|
* @return number of bytes loaded |
|
*/ |
|
static int load_block(unsigned block, uchar *dst, unsigned len) |
|
{ |
|
/* We may want to get the final block from the previous set */ |
|
ulong offset = ((int)block - 1) * len + tftp_block_wrap_offset; |
|
ulong tosend = len; |
|
|
|
tosend = min(net_boot_file_size - offset, tosend); |
|
(void)memcpy(dst, (void *)(save_addr + offset), tosend); |
|
debug("%s: block=%d, offset=%ld, len=%d, tosend=%ld\n", __func__, |
|
block, offset, len, tosend); |
|
return tosend; |
|
} |
|
#endif |
|
|
|
static void tftp_send(void); |
|
static void tftp_timeout_handler(void); |
|
|
|
/**********************************************************************/ |
|
|
|
static void show_block_marker(void) |
|
{ |
|
#ifdef CONFIG_TFTP_TSIZE |
|
if (tftp_tsize) { |
|
ulong pos = tftp_cur_block * tftp_block_size + |
|
tftp_block_wrap_offset; |
|
if (pos > tftp_tsize) |
|
pos = tftp_tsize; |
|
|
|
while (tftp_tsize_num_hash < pos * 50 / tftp_tsize) { |
|
putc('#'); |
|
tftp_tsize_num_hash++; |
|
} |
|
} else |
|
#endif |
|
{ |
|
if (((tftp_cur_block - 1) % 10) == 0) |
|
putc('#'); |
|
else if ((tftp_cur_block % (10 * HASHES_PER_LINE)) == 0) |
|
puts("\n\t "); |
|
} |
|
} |
|
|
|
/** |
|
* restart the current transfer due to an error |
|
* |
|
* @param msg Message to print for user |
|
*/ |
|
static void restart(const char *msg) |
|
{ |
|
printf("\n%s; starting again\n", msg); |
|
#ifdef CONFIG_MCAST_TFTP |
|
mcast_cleanup(); |
|
#endif |
|
net_start_again(); |
|
} |
|
|
|
/* |
|
* Check if the block number has wrapped, and update progress |
|
* |
|
* TODO: The egregious use of global variables in this file should be tidied. |
|
*/ |
|
static void update_block_number(void) |
|
{ |
|
/* |
|
* RFC1350 specifies that the first data packet will |
|
* have sequence number 1. If we receive a sequence |
|
* number of 0 this means that there was a wrap |
|
* around of the (16 bit) counter. |
|
*/ |
|
if (tftp_cur_block == 0 && tftp_prev_block != 0) { |
|
tftp_block_wrap++; |
|
tftp_block_wrap_offset += tftp_block_size * TFTP_SEQUENCE_SIZE; |
|
timeout_count = 0; /* we've done well, reset the timeout */ |
|
} else { |
|
show_block_marker(); |
|
} |
|
} |
|
|
|
/* The TFTP get or put is complete */ |
|
static void tftp_complete(void) |
|
{ |
|
#ifdef CONFIG_TFTP_TSIZE |
|
/* Print hash marks for the last packet received */ |
|
while (tftp_tsize && tftp_tsize_num_hash < 49) { |
|
putc('#'); |
|
tftp_tsize_num_hash++; |
|
} |
|
puts(" "); |
|
print_size(tftp_tsize, ""); |
|
#endif |
|
time_start = get_timer(time_start); |
|
if (time_start > 0) { |
|
puts("\n\t "); /* Line up with "Loading: " */ |
|
print_size(net_boot_file_size / |
|
time_start * 1000, "/s"); |
|
} |
|
puts("\ndone\n"); |
|
net_set_state(NETLOOP_SUCCESS); |
|
} |
|
|
|
static void tftp_send(void) |
|
{ |
|
uchar *pkt; |
|
uchar *xp; |
|
int len = 0; |
|
ushort *s; |
|
|
|
#ifdef CONFIG_MCAST_TFTP |
|
/* Multicast TFTP.. non-MasterClients do not ACK data. */ |
|
if (tftp_mcast_active && tftp_state == STATE_DATA && |
|
tftp_mcast_master_client == 0) |
|
return; |
|
#endif |
|
/* |
|
* We will always be sending some sort of packet, so |
|
* cobble together the packet headers now. |
|
*/ |
|
pkt = net_tx_packet + net_eth_hdr_size() + IP_UDP_HDR_SIZE; |
|
|
|
switch (tftp_state) { |
|
case STATE_SEND_RRQ: |
|
case STATE_SEND_WRQ: |
|
xp = pkt; |
|
s = (ushort *)pkt; |
|
#ifdef CONFIG_CMD_TFTPPUT |
|
*s++ = htons(tftp_state == STATE_SEND_RRQ ? TFTP_RRQ : |
|
TFTP_WRQ); |
|
#else |
|
*s++ = htons(TFTP_RRQ); |
|
#endif |
|
pkt = (uchar *)s; |
|
strcpy((char *)pkt, tftp_filename); |
|
pkt += strlen(tftp_filename) + 1; |
|
strcpy((char *)pkt, "octet"); |
|
pkt += 5 /*strlen("octet")*/ + 1; |
|
strcpy((char *)pkt, "timeout"); |
|
pkt += 7 /*strlen("timeout")*/ + 1; |
|
sprintf((char *)pkt, "%lu", timeout_ms / 1000); |
|
debug("send option \"timeout %s\"\n", (char *)pkt); |
|
pkt += strlen((char *)pkt) + 1; |
|
#ifdef CONFIG_TFTP_TSIZE |
|
pkt += sprintf((char *)pkt, "tsize%c%u%c", |
|
0, net_boot_file_size, 0); |
|
#endif |
|
/* try for more effic. blk size */ |
|
pkt += sprintf((char *)pkt, "blksize%c%d%c", |
|
0, tftp_block_size_option, 0); |
|
#ifdef CONFIG_MCAST_TFTP |
|
/* Check all preconditions before even trying the option */ |
|
if (!tftp_mcast_disabled) { |
|
tftp_mcast_bitmap = malloc(tftp_mcast_bitmap_size); |
|
if (tftp_mcast_bitmap && eth_get_dev()->mcast) { |
|
free(tftp_mcast_bitmap); |
|
tftp_mcast_bitmap = NULL; |
|
pkt += sprintf((char *)pkt, "multicast%c%c", |
|
0, 0); |
|
} |
|
} |
|
#endif /* CONFIG_MCAST_TFTP */ |
|
len = pkt - xp; |
|
break; |
|
|
|
case STATE_OACK: |
|
#ifdef CONFIG_MCAST_TFTP |
|
/* My turn! Start at where I need blocks I missed. */ |
|
if (tftp_mcast_active) |
|
tftp_cur_block = ext2_find_next_zero_bit( |
|
tftp_mcast_bitmap, |
|
tftp_mcast_bitmap_size * 8, 0); |
|
/* fall through */ |
|
#endif |
|
|
|
case STATE_RECV_WRQ: |
|
case STATE_DATA: |
|
xp = pkt; |
|
s = (ushort *)pkt; |
|
s[0] = htons(TFTP_ACK); |
|
s[1] = htons(tftp_cur_block); |
|
pkt = (uchar *)(s + 2); |
|
#ifdef CONFIG_CMD_TFTPPUT |
|
if (tftp_put_active) { |
|
int toload = tftp_block_size; |
|
int loaded = load_block(tftp_cur_block, pkt, toload); |
|
|
|
s[0] = htons(TFTP_DATA); |
|
pkt += loaded; |
|
tftp_put_final_block_sent = (loaded < toload); |
|
} |
|
#endif |
|
len = pkt - xp; |
|
break; |
|
|
|
case STATE_TOO_LARGE: |
|
xp = pkt; |
|
s = (ushort *)pkt; |
|
*s++ = htons(TFTP_ERROR); |
|
*s++ = htons(3); |
|
|
|
pkt = (uchar *)s; |
|
strcpy((char *)pkt, "File too large"); |
|
pkt += 14 /*strlen("File too large")*/ + 1; |
|
len = pkt - xp; |
|
break; |
|
|
|
case STATE_BAD_MAGIC: |
|
xp = pkt; |
|
s = (ushort *)pkt; |
|
*s++ = htons(TFTP_ERROR); |
|
*s++ = htons(2); |
|
pkt = (uchar *)s; |
|
strcpy((char *)pkt, "File has bad magic"); |
|
pkt += 18 /*strlen("File has bad magic")*/ + 1; |
|
len = pkt - xp; |
|
break; |
|
} |
|
|
|
net_send_udp_packet(net_server_ethaddr, tftp_remote_ip, |
|
tftp_remote_port, tftp_our_port, len); |
|
} |
|
|
|
#ifdef CONFIG_CMD_TFTPPUT |
|
static void icmp_handler(unsigned type, unsigned code, unsigned dest, |
|
struct in_addr sip, unsigned src, uchar *pkt, |
|
unsigned len) |
|
{ |
|
if (type == ICMP_NOT_REACH && code == ICMP_NOT_REACH_PORT) { |
|
/* Oh dear the other end has gone away */ |
|
restart("TFTP server died"); |
|
} |
|
} |
|
#endif |
|
|
|
static void tftp_handler(uchar *pkt, unsigned dest, struct in_addr sip, |
|
unsigned src, unsigned len) |
|
{ |
|
__be16 proto; |
|
__be16 *s; |
|
int i; |
|
|
|
if (dest != tftp_our_port) { |
|
#ifdef CONFIG_MCAST_TFTP |
|
if (tftp_mcast_active && |
|
(!tftp_mcast_port || dest != tftp_mcast_port)) |
|
#endif |
|
return; |
|
} |
|
if (tftp_state != STATE_SEND_RRQ && src != tftp_remote_port && |
|
tftp_state != STATE_RECV_WRQ && tftp_state != STATE_SEND_WRQ) |
|
return; |
|
|
|
if (len < 2) |
|
return; |
|
len -= 2; |
|
/* warning: don't use increment (++) in ntohs() macros!! */ |
|
s = (__be16 *)pkt; |
|
proto = *s++; |
|
pkt = (uchar *)s; |
|
switch (ntohs(proto)) { |
|
case TFTP_RRQ: |
|
break; |
|
|
|
case TFTP_ACK: |
|
#ifdef CONFIG_CMD_TFTPPUT |
|
if (tftp_put_active) { |
|
if (tftp_put_final_block_sent) { |
|
tftp_complete(); |
|
} else { |
|
/* |
|
* Move to the next block. We want our block |
|
* count to wrap just like the other end! |
|
*/ |
|
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 */
|
|
|