Hi Simon,
Thanks for tackling this.
On Sat, Nov 17, 2018 at 6:31 AM Simon Goldschmidt
<simon.k.r.goldschm...@gmail.com> wrote:
>
> This option seems unused as no mainline board enables it and it does
> not compile since some years.
>
> Additionally, it has a potential buffer underrun issue (reported as
> a side node in CVE-2018-18439).
>
> Instead of trying to fix a thing noone seems to use, let's rather
> drop dead code.
>
> Signed-off-by: Simon Goldschmidt <simon.k.r.goldschm...@gmail.com>
> ---
>
> Changes in v2:
> - this patch is new in v2
>
> README | 9 --
> drivers/net/rtl8139.c | 9 --
> drivers/net/tsec.c | 52 --------
> drivers/usb/gadget/ether.c | 3 -
> include/net.h | 17 ---
> net/eth-uclass.c | 4 -
> net/eth_legacy.c | 46 --------
> net/net.c | 9 +-
> net/tftp.c | 223 +----------------------------------
I think the TFTP stuff can be removed, but multicast in general
probably not, since I believe IPv6 support requires it. I guess we
could put it back at that time, but I'm a bit concerned that we will
diverge and make that work harder. Maybe it's feasible to simply stop
guarding multicast support in the core and drivers with the TFTP
config and enable it at all times. The code size on that side is
minimal.
Thanks,
-Joe
> scripts/config_whitelist.txt | 1 -
> 10 files changed, 2 insertions(+), 371 deletions(-)
>
> diff --git a/README b/README
> index a46c7c63a4..97a3e9a84b 100644
> --- a/README
> +++ b/README
> @@ -1429,15 +1429,6 @@ The following options need to be configured:
> forwarded through a router.
> (Environment variable "netmask")
>
> -- Multicast TFTP Mode:
> - CONFIG_MCAST_TFTP
> -
> - Defines whether you want to support multicast TFTP as per
> - rfc-2090; for example to work with atftp. Lets lots of
> targets
> - tftp down the same boot image concurrently. Note: the
> Ethernet
> - driver in use must provide a function: mcast() to join/leave a
> - multicast group.
> -
> - BOOTP Recovery Mode:
> CONFIG_BOOTP_RANDOM_DELAY
>
> diff --git a/drivers/net/rtl8139.c b/drivers/net/rtl8139.c
> index 590f8ce154..79acd64bc0 100644
> --- a/drivers/net/rtl8139.c
> +++ b/drivers/net/rtl8139.c
> @@ -183,12 +183,6 @@ static void rtl_reset(struct eth_device *dev);
> static int rtl_transmit(struct eth_device *dev, void *packet, int length);
> static int rtl_poll(struct eth_device *dev);
> static void rtl_disable(struct eth_device *dev);
> -#ifdef CONFIG_MCAST_TFTP/* This driver already accepts all b/mcast */
> -static int rtl_bcast_addr(struct eth_device *dev, const u8 *bcast_mac, u8
> set)
> -{
> - return (0);
> -}
> -#endif
>
> static struct pci_device_id supported[] = {
> {PCI_VENDOR_ID_REALTEK, PCI_DEVICE_ID_REALTEK_8139},
> @@ -229,9 +223,6 @@ int rtl8139_initialize(bd_t *bis)
> dev->halt = rtl_disable;
> dev->send = rtl_transmit;
> dev->recv = rtl_poll;
> -#ifdef CONFIG_MCAST_TFTP
> - dev->mcast = rtl_bcast_addr;
> -#endif
>
> eth_register (dev);
>
> diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c
> index 03a46da2f8..614097c6ce 100644
> --- a/drivers/net/tsec.c
> +++ b/drivers/net/tsec.c
> @@ -78,52 +78,6 @@ static void tsec_configure_serdes(struct tsec_private
> *priv)
> 0, TBI_CR, CONFIG_TSEC_TBICR_SETTINGS);
> }
>
> -#ifdef CONFIG_MCAST_TFTP
> -
> -/* CREDITS: linux gianfar driver, slightly adjusted... thanx. */
> -
> -/* Set the appropriate hash bit for the given addr */
> -
> -/*
> - * The algorithm works like so:
> - * 1) Take the Destination Address (ie the multicast address), and
> - * do a CRC on it (little endian), and reverse the bits of the
> - * result.
> - * 2) Use the 8 most significant bits as a hash into a 256-entry
> - * table. The table is controlled through 8 32-bit registers:
> - * gaddr0-7. gaddr0's MSB is entry 0, and gaddr7's LSB is entry
> - * 255. This means that the 3 most significant bits in the
> - * hash index which gaddr register to use, and the 5 other bits
> - * indicate which bit (assuming an IBM numbering scheme, which
> - * for PowerPC (tm) is usually the case) in the register holds
> - * the entry.
> - */
> -#ifndef CONFIG_DM_ETH
> -static int tsec_mcast_addr(struct eth_device *dev, const u8 *mcast_mac, u8
> set)
> -#else
> -static int tsec_mcast_addr(struct udevice *dev, const u8 *mcast_mac, int set)
> -#endif
> -{
> - struct tsec_private *priv = (struct tsec_private *)dev->priv;
> - struct tsec __iomem *regs = priv->regs;
> - u32 result, value;
> - u8 whichbit, whichreg;
> -
> - result = ether_crc(MAC_ADDR_LEN, mcast_mac);
> - whichbit = (result >> 24) & 0x1f; /* the 5 LSB = which bit to set */
> - whichreg = result >> 29; /* the 3 MSB = which reg to set it in */
> -
> - value = BIT(31 - whichbit);
> -
> - if (set)
> - setbits_be32(®s->hash.gaddr0 + whichreg, value);
> - else
> - clrbits_be32(®s->hash.gaddr0 + whichreg, value);
> -
> - return 0;
> -}
> -#endif /* Multicast TFTP ? */
> -
> /*
> * Initialized required registers to appropriate values, zeroing
> * those we don't care about (unless zero is bad, in which case,
> @@ -720,9 +674,6 @@ static int tsec_initialize(bd_t *bis, struct
> tsec_info_struct *tsec_info)
> dev->halt = tsec_halt;
> dev->send = tsec_send;
> dev->recv = tsec_recv;
> -#ifdef CONFIG_MCAST_TFTP
> - dev->mcast = tsec_mcast_addr;
> -#endif
>
> /* Tell U-Boot to get the addr from the env */
> for (i = 0; i < 6; i++)
> @@ -862,9 +813,6 @@ static const struct eth_ops tsec_ops = {
> .recv = tsec_recv,
> .free_pkt = tsec_free_pkt,
> .stop = tsec_halt,
> -#ifdef CONFIG_MCAST_TFTP
> - .mcast = tsec_mcast_addr,
> -#endif
> };
>
> static const struct udevice_id tsec_ids[] = {
> diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
> index 90ef1f055f..41fe41e1a6 100644
> --- a/drivers/usb/gadget/ether.c
> +++ b/drivers/usb/gadget/ether.c
> @@ -2607,9 +2607,6 @@ int usb_eth_initialize(bd_t *bi)
> netdev->halt = usb_eth_halt;
> netdev->priv = l_priv;
>
> -#ifdef CONFIG_MCAST_TFTP
> - #error not supported
> -#endif
> eth_register(netdev);
> return 0;
> }
> diff --git a/include/net.h b/include/net.h
> index 51c099dae2..072b658442 100644
> --- a/include/net.h
> +++ b/include/net.h
> @@ -123,7 +123,6 @@ enum eth_recv_flags {
> * called when no error was returned from recv - optional
> * stop: Stop the hardware from looking for packets - may be called even if
> * state == PASSIVE
> - * mcast: Join or leave a multicast group (for TFTP) - optional
> * write_hwaddr: Write a MAC address to the hardware (used to pass it to
> Linux
> * on some platforms like ARM). This function expects the
> * eth_pdata::enetaddr field to be populated. The method can
> @@ -140,9 +139,6 @@ struct eth_ops {
> int (*recv)(struct udevice *dev, int flags, uchar **packetp);
> int (*free_pkt)(struct udevice *dev, uchar *packet, int length);
> void (*stop)(struct udevice *dev);
> -#ifdef CONFIG_MCAST_TFTP
> - int (*mcast)(struct udevice *dev, const u8 *enetaddr, int join);
> -#endif
> int (*write_hwaddr)(struct udevice *dev);
> int (*read_rom_hwaddr)(struct udevice *dev);
> };
> @@ -175,9 +171,6 @@ struct eth_device {
> int (*send)(struct eth_device *, void *packet, int length);
> int (*recv)(struct eth_device *);
> void (*halt)(struct eth_device *);
> -#ifdef CONFIG_MCAST_TFTP
> - int (*mcast)(struct eth_device *, const u8 *enetaddr, u8 set);
> -#endif
> int (*write_hwaddr)(struct eth_device *);
> struct eth_device *next;
> int index;
> @@ -287,12 +280,6 @@ int eth_rx(void); /* Check for received
> packets */
> void eth_halt(void); /* stop SCC */
> const char *eth_get_name(void); /* get name of current device
> */
>
> -#ifdef CONFIG_MCAST_TFTP
> -int eth_mcast_join(struct in_addr mcast_addr, int join);
> -u32 ether_crc(size_t len, unsigned char const *p);
> -#endif
> -
> -
> /**********************************************************************/
> /*
> * Protocol headers.
> @@ -578,10 +565,6 @@ extern struct in_addr net_ntp_server; /*
> the ip address to NTP */
> extern int net_ntp_time_offset; /* offset time from
> UTC */
> #endif
>
> -#if defined(CONFIG_MCAST_TFTP)
> -extern struct in_addr net_mcast_addr;
> -#endif
> -
> /* Initialize the network adapter */
> void net_init(void);
> int net_loop(enum proto_t);
> diff --git a/net/eth-uclass.c b/net/eth-uclass.c
> index 91d861be41..bafa093c37 100644
> --- a/net/eth-uclass.c
> +++ b/net/eth-uclass.c
> @@ -476,10 +476,6 @@ static int eth_post_probe(struct udevice *dev)
> ops->free_pkt += gd->reloc_off;
> if (ops->stop)
> ops->stop += gd->reloc_off;
> -#ifdef CONFIG_MCAST_TFTP
> - if (ops->mcast)
> - ops->mcast += gd->reloc_off;
> -#endif
> if (ops->write_hwaddr)
> ops->write_hwaddr += gd->reloc_off;
> if (ops->read_rom_hwaddr)
> diff --git a/net/eth_legacy.c b/net/eth_legacy.c
> index 2a9caa3509..7e82422b29 100644
> --- a/net/eth_legacy.c
> +++ b/net/eth_legacy.c
> @@ -291,52 +291,6 @@ int eth_initialize(void)
> return num_devices;
> }
>
> -#ifdef CONFIG_MCAST_TFTP
> -/* Multicast.
> - * mcast_addr: multicast ipaddr from which multicast Mac is made
> - * join: 1=join, 0=leave.
> - */
> -int eth_mcast_join(struct in_addr mcast_ip, int join)
> -{
> - u8 mcast_mac[ARP_HLEN];
> - if (!eth_current || !eth_current->mcast)
> - return -1;
> - mcast_mac[5] = htonl(mcast_ip.s_addr) & 0xff;
> - mcast_mac[4] = (htonl(mcast_ip.s_addr)>>8) & 0xff;
> - mcast_mac[3] = (htonl(mcast_ip.s_addr)>>16) & 0x7f;
> - mcast_mac[2] = 0x5e;
> - mcast_mac[1] = 0x0;
> - mcast_mac[0] = 0x1;
> - return eth_current->mcast(eth_current, mcast_mac, join);
> -}
> -
> -/* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c
> - * and this is the ethernet-crc method needed for TSEC -- and perhaps
> - * some other adapter -- hash tables
> - */
> -#define CRCPOLY_LE 0xedb88320
> -u32 ether_crc(size_t len, unsigned char const *p)
> -{
> - int i;
> - u32 crc;
> - crc = ~0;
> - while (len--) {
> - crc ^= *p++;
> - for (i = 0; i < 8; i++)
> - crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
> - }
> - /* an reverse the bits, cuz of way they arrive -- last-first */
> - crc = (crc >> 16) | (crc << 16);
> - crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00);
> - crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0);
> - crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc);
> - crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa);
> - return crc;
> -}
> -
> -#endif
> -
> -
> int eth_init(void)
> {
> struct eth_device *old_current;
> diff --git a/net/net.c b/net/net.c
> index a5a216c3ee..72286e24f4 100644
> --- a/net/net.c
> +++ b/net/net.c
> @@ -131,10 +131,6 @@ struct in_addr net_dns_server;
> struct in_addr net_dns_server2;
> #endif
>
> -#ifdef CONFIG_MCAST_TFTP /* Multicast TFTP */
> -struct in_addr net_mcast_addr;
> -#endif
> -
> /** END OF BOOTP EXTENTIONS **/
>
> /* Our ethernet address */
> @@ -1215,10 +1211,7 @@ void net_process_received_packet(uchar *in_packet, int
> len)
> dst_ip = net_read_ip(&ip->ip_dst);
> if (net_ip.s_addr && dst_ip.s_addr != net_ip.s_addr &&
> dst_ip.s_addr != 0xFFFFFFFF) {
> -#ifdef CONFIG_MCAST_TFTP
> - if (net_mcast_addr != dst_ip)
> -#endif
> - return;
> + return;
> }
> /* Read source IP address for later use */
> src_ip = net_read_ip(&ip->ip_src);
> diff --git a/net/tftp.c b/net/tftp.c
> index 68ffd81414..563ce3a06f 100644
> --- a/net/tftp.c
> +++ b/net/tftp.c
> @@ -134,36 +134,6 @@ static char tftp_filename[MAX_LEN];
> 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;
> @@ -196,10 +166,6 @@ static inline void store_block(int block, uchar *src,
> unsigned 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;
> @@ -275,9 +241,6 @@ static void show_block_marker(void)
> static void restart(const char *msg)
> {
> printf("\n%s; starting again\n", msg);
> -#ifdef CONFIG_MCAST_TFTP
> - mcast_cleanup();
> -#endif
> net_start_again();
> }
>
> @@ -332,12 +295,6 @@ static void tftp_send(void)
> 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.
> @@ -372,31 +329,10 @@ static void tftp_send(void)
> /* 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;
> @@ -465,11 +401,7 @@ static void tftp_handler(uchar *pkt, unsigned dest,
> struct in_addr sip,
> int i;
>
> if (dest != tftp_our_port) {
> -#ifdef CONFIG_MCAST_TFTP
> - if (tftp_mcast_active &&
> - (!tftp_mcast_port || dest != tftp_mcast_port))
> -#endif
> - return;
> + return;
> }
> if (tftp_state != STATE_SEND_RRQ && src != tftp_remote_port &&
> tftp_state != STATE_RECV_WRQ && tftp_state != STATE_SEND_WRQ)
> @@ -549,12 +481,6 @@ static void tftp_handler(uchar *pkt, unsigned dest,
> struct in_addr sip,
> }
> #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 */
> @@ -582,11 +508,6 @@ static void tftp_handler(uchar *pkt, unsigned dest,
> struct in_addr sip,
> 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",
> @@ -612,44 +533,8 @@ static void tftp_handler(uchar *pkt, unsigned dest,
> struct in_addr sip,
> * 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;
> @@ -672,9 +557,6 @@ static void tftp_handler(uchar *pkt, unsigned dest,
> struct in_addr sip,
> case TFTP_ERR_FILE_ALREADY_EXISTS:
> default:
> puts("Starting again\n\n");
> -#ifdef CONFIG_MCAST_TFTP
> - mcast_cleanup();
> -#endif
> net_start_again();
> break;
> }
> @@ -826,9 +708,6 @@ void tftp_start(enum proto_t protocol)
> 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;
> @@ -870,103 +749,3 @@ void tftp_start_server(void)
> 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 */
> diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
> index 0627024e71..b2691206fb 100644
> --- a/scripts/config_whitelist.txt
> +++ b/scripts/config_whitelist.txt
> @@ -1210,7 +1210,6 @@ CONFIG_MAX_FPGA_DEVICES
> CONFIG_MAX_MEM_MAPPED
> CONFIG_MAX_PKT
> CONFIG_MAX_RAM_BANK_SIZE
> -CONFIG_MCAST_TFTP
> CONFIG_MCF5249
> CONFIG_MCF5253
> CONFIG_MCFFEC
> --
> 2.17.1
>
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> U-Boot mailing list
> U-Boot@lists.denx.de
> https://lists.denx.de/listinfo/u-boot
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