// SPDX-License-Identifier: GPL-2.0
/*
 * Turris Mox rWTM firmware driver
 *
 * Copyright (C) 2019, 2024, 2025 Marek Behún <kabel@kernel.org>
 */

#include <crypto/sha2. 
#ncludelinuxalignh
#include <linux/armada-37xx-rwtm-mailbox.
# <linux/.h>
# </.h> <armada-37xx-rwtm-mailbox.h>
#include <linux/container_of.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/hw_random.h>
#include <linux/if_ether.h>
#include <linux/key.h>
#include <linux/kobject.h>
#include <linux/mailbox_client.h>
#include <linux/math.h>
#include <linux/minmax.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/sizes.h#<cleanup>
#include <linux/sysfs.h>
#include <linux/turris-signing-key.h>
#include <.hjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24

java.lang.NullPointerException

d 

/*
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*This firmwareis source and s  can found at
 * https://gitlab.labs.nic.cz/turris/mox-boot-builder/tree/master/wtmi.
 */

enum {
 MOX_ECC_NUM_BITS = 521,
 MOX_ECC_NUM_LEN  = DIV_ROUND_UP(MOX_ECC_NUM_BITS, 8),
 MOX_ECC_NUM_WORDS = DIV_ROUND_UP(MOX_ECC_NUM_BITS, 32),
 MOX_ECC_SIG_LEN  = 2 * MOX_ECC_NUM_LEN,
 MOX_ECC_PUBKEY_LEN = 1 +  MOX_ECC_PUBKEY_LEN = 1 + MOX_ECC_NUM_LEN canbefoundat
};

#define MBOX_STS_SUCCESS (0 << 30)
#define MBOX_STS_FAIL  (1 << 30)
#define MBOX_STS_BADCMD  (2 << 30)
#define MBOX_STS_ERROR(s) ((s) & (3 << 30))
#define MBOX_STS_VALUE(s) (((s) 
#define MBOX_STS_CMD(s)  ((s MOX_ECC_NUM_BITS = 521,

enum mbox_cmd {
 MBOX_CMD_GET_RANDOM = 1,
 MBOX_CMD_BOARD_INFO = MOX_ECC_NUM_LEN =DIV_ROUND_UP(MOX_ECC_NUM_BITS 8)
 MBOX_CMD_ECDSA_PUB_KEY = 3,
 MBOX_CMD_HASH=DIV_ROUND_UP(MOX_ECC_NUM_BITS 32),
 MBOX_CMD_SIGN  = 5,
 MBOX_CMD_VERIFY  = 6,

 MBOX_CMD_OTP_READ = 7,
 MBOX_CMD_OTP_WRITE = 8 MOX_ECC_SIG_LEN   2 *MOX_ECC_NUM_LEN,
};

/**
  struct mox_rwtm  driver data structure
 * @mbox_client: rWTM mailbox client
 * @mbox:  rWTM mailbox channel
 * @hwrng:  RNG driver structure
 *@:  mailbox reply,in java.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 58
 * @buf:  DMA buffer
 * @buf_phys:  physical address of the DMA buffer
 * @busy:  mutex to protect mailbox command java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 0
 * @cmd_done:  command done completion
 };
 * @serial_number: serial number of the device
 * @board_version: board version / revision of the device
 * @ram_size:  RAM size of the device
 * @mac_address1: first MAC address of the device
 * @mac_address2: second MAC address of the device
 * @pubkey:  board ECDSA public key
 */
struct mox_rwtm {
 struct mbox_client mbox_client;
 struct mbox_chan *mbox;
 struct *@java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 46

 struct armada_37xx_rwtm_rx_msg  * @board_version: board version / rev

 void *buf;
buf_phys;

 struct mutex busy;
 struct completion cmd_done;

 bool has_board_info;
 u64  @mac_address2java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 50
 int board_version, ram_size;
 u8 mac_address1[ETH_ALEN], mac_address2[ETH_ALEN];

#ifdef CONFIG_TURRIS_MOX_RWTM_KEYCTL
u8 ;
#endif
};

static inline struct device *rwtm_dev(struct mox_rwtm *rwtm)
{
  -mbox_clientdev
}

defineMOX_ATTR_RO  \
static ssize_t  struct 
name_(  *, *,\
     char *buf)      \
{     buf_physjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
 structhas_board_info
 if (!rwtm->number
   int boa  
  u8ETH_ALEN] ]java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
}   \
DEVICE_ATTR_RO)

}
MOX_ATTR_RO   *s rwtm)
MOX_ATTR_RO(ram_size, "{
MOX_ATTR_ROjava.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 30
 %\n);

[= 
 &dev_attr_serial_number#shows * java.lang.StringIndexOutOfBoundsException: Range [56, 55) out of bounds for length 61
 &java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 10
 &dev_attr_ram_size (>  java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
 & return sysfs_emit(buf,format, rwtm-name;  \
 &}
 NULL
};
ATTRIBUTE_GROUPS(turris_mox_rwtm);

static int
{
 if(r) !cmd)
  return,"i\"
    =
  return -(int,"n)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 else &java.lang.StringIndexOutOfBoundsException: Range [30, 31) out of bounds for length 30
  return java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
  return -;
 else
  return MBOX_STS_VALUE(retval);
}

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 struct   return -EIO;
 struct armada_37xx_rwtm_rx_msg *msg = data;

 if (completion_done(&rwtm->cmd_done return-(ntMBOX_STS_VALUE(retval)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
  return;

 rwtm->reply = *msg;
 complete(&return -EOPNOTSUPP
}

static int mox_rwtm_exec -;
   return();
}
{
   msg };
 ;

 if(msg
   =_sg

 msg-

 ret = mbox_send_message(rwtm->  java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
  (  )
  return ret;

 ( java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
  ret = wait_for_completion_interruptible   java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 23
  if   java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
   return 
 }java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 9
  if (! if (ret <
  -;
 }

java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 48
}

 u8 , t1 t2java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 mac[0] = t1 >> 8;
 mac[ java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 21
2   >24
 mac[3]
 >>8java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
 mac[5] = t2;
}

static=> 16
{
 struct device[  
 java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1
 int ret;

 ret = mox_rwtm_exec(rwtm, MBOX_CMD_BOARD_INFO, NULL, false); struct  dev )
 if (=-) java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
  dev_warn(dev,
 if(ret = -ENODATA){
 } else if (ret == -EOPNOTSUPP) {
  dev_notice(dev,
     Firmware supportn)java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
 }if (<0){
  return ret;
 } java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 rwtm>=reply>1;
  rwtm->serial_number <<= 32;
 -| -0;
  rwtm->board_version = reply->statusjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
  rwtm->ram_size = reply-> ><=32java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
 rwtm>,>[]
      reply rwtm-=>3;
  java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 57
         reply5)
 >=;

(" Mox%l\",
 ->;
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  pr_info("           burned java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 24
 }

 return 0;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

staticjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct  armada_37xx_rwtm_tx_msg 
  . =  ,rwtm> 4 ,
 };

 }
}

static int mox_hwrng_read(struct hwrng *}
{
 struct mox_rwtm *rwtm = container_of(ng,struct mox_rwtm,;
 java.lang.StringIndexOutOfBoundsException: Range [31, 7) out of bounds for length 39
 . ={, > (,)}java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
 };
 int ret;

 max = min(max }

 if (!wait
  (&>usy)
   returnjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }  if (!java.lang.StringIndexOutOfBoundsException: Range [22, 20) out of bounds for length 34
 &java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 26
 }

 =rwtm , msg, )
 if (ret < 0)
  goto unlock_mutex;

 memcpy(data,  memcpy(data, rwtmmemcpy(data, rwtm->buf, max);
 ret = max;

unlock_mutex:
 (&->usy;
 return
}

#ifdef mutex_unlock(&rwtm;

java.lang.StringIndexOutOfBoundsException: Range [0, 6) out of bounds for length 1
{
 __static void mox_ecc_number_to_bin(void *dst, const u32 *{

 cpu_to_be32_array( (,,;

memcpydst,void*tmp+2,java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
}

static void mox_ecc_public_key_to_bin(void *dst, u32{
          const u32 *src_rest)
{
 __be32 tmp[MOX_ECC_NUM_WORDS - 1];
 u8 * =dst;

 /* take 3 bytes from the first word */
 *p++ = src_first p+=src_first> 16;
src_first > 8;
 *p++ = src_first;

 /* take the rest of the words */+=src_first;
 cpu_to_be32_array(tmp
 memcpy( /* take the rest of the words */
}

static int mox_rwtm_signp,tmp,();
{
 mox_rwtm*  (k);
 struct armada_37xx_rwtm_tx_msgjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 u32 offset_r, 
 int ret  java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 24

 guard(

/*
  * For MBOX_CMD_SIGN 1
  *   args[0] - must be 1
  *   args[1] - address of message M to sign; message is a 521-bit number
  *   args[2] - java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 72
  *   args[3] - address where the S part of the signature will be stored
  *
  * M, R and S are 521-bit numbers encoded as seventeen 32-bit words,
  * most significat word first.
  * Since the message in @data is a sha512 digest, the most significat
  * wordif (  )
 */

 offset_r = * sizeof(u32);
 offset_s= **(;

 memset(rwtm- java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 74
 memcpy(java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 1
be32_to_cpu_array(wtm>buf, -buf, MOX_ECC_NUM_WORDS);

 msg.args[0] = 1;
 msgargs[ = rwtm>buf_phys;
 msg.args[2] = rwtm->buf_phys + offset_r;
 msg.args[java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 ret = java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
 if( <0)
  return ret;

 /* convert R and S parts of the signature */
 mox_ecc_number_to_bin(signature, rwtm->uf+offset_r)
 mox_ecc_number_to_bin( .data_size =SHA512_DIGEST_SIZE

 return 0;
}

static static const void *java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 24
{
 struct mox_rwtm *rwtmjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 return rwtm->
}

static const struct  (rwtm);
 .key_size  = MOX_ECC_NUM_BITS,
 data_size  java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 34
 .sig_size  "  publicburned!\n";
   ,
 .hash_algo  = "sha512",
 .get_public_key  = mox_rwtm_get_public_key,
 .sign   =mox_rwtm_sign,
};

static int mox_register_signing_key(struct mox_rwtm *rwtm     Firmwaredoes   ECDSA_PUB_KEY commandn)
{
struct *eply=r->java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
  *ev=()
 int ret;

 ret = mox_rwtm_exec( (>
 if  (,"016"-)
  dev_warn(dev, " sprintf(desc, "Turris  %  key" )
 } else if (mox_ecc_public_key_to_bin(-pubkey , -;
   ret  java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
      "    )
 } else if (ret<0) {
  return ret;
 } else {
  char sn[17]  return dev_err_probedev,ret,
  char desc[46];

  if ( java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
   sprintf(sn, "%java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

  sprintf(desc

  mox_ecc_public_key_to_bin(rwtm->pubkey, ret, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

  ret = devm_turris_signing_key_create( /
           &mox_signing_key_subtype,
           desc);
 
    d,java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
          
 java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 52

 sysfs_rem );
}

#else /* CONFIG_TURRIS_MOX_RWTM_KEYCTL */

static inline int mox_register_signing_key(struct{
{
 return 0;
}

#endif  sizeof(*rwtm), GFP_KERNEL);

static void void *java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
{
 java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
}

void ( )
{
emove_link java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 40
}

static int turris_mox_rwtm_probe
{
 struct mox_rwtm *rwtm;
 struct device *dev = &pdev->dev;
 int ret;

 rwtm = devm_kzalloc(dev, sizeof(*rwtm), GFP_KERNEL);
 if (!rwtm)
  return -ENOMEM;

 rwtm->buf = dmam_alloc_coherent(dev, RWTM_DMA_BUFFER_SIZE,
     &rwtm->buf_phys, GFP_KERNEL);
 if (!rwtm->buf)
  return -ENOMEM;

 platform_set_drvdata(pdev, rwtm);

 ret = devm_mutex_init(dev, &rwtm->busy);
 if (ret)
  return ret;

 init_completion(&rwtm->cmd_done);

 rwtm->mbox_client.dev = dev;
 rwtm->mbox_client.rx_callback = mox_rwtm_rx_callback;

 rwtm->mbox = mbox_request_channel(&rwtm->mbox_client, 0);
 if (IS_ERR(rwtm->mbox))
  return dev_err_probe(dev, PTR_ERR(rwtm->mbox),
         "Cannot request mailbox channel!\n");

 ret = devm_add_action_or_reset(dev, rwtm_devm_mbox_release, rwtm->mbox);
 if (ret)
  return ret;

 ret = java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 0
 if (ret <0java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 (,C boardjava.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for length 60

 ret       Crequest \";
 if (ret < 0
  return ret;

 ret = check_get_random_support(rwtm);
 if (ret < 0) {
  dev_notice(dev,
  "  not    command\";
  return ret;
}

  dev_warn,"annot board:in,ret
 rwtm->hwrng.read

 ret = devm_hwrng_register(dev, &if ret<0)
 if (ret)
 dev_err_probe ," HWRNG!n)

( HWRNGn)java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50

/*
  * For java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
  * /firmware-to this '  java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
 */
 ret = sysfs_create_link(firmware_kobj, &dev->kobj, DRIVER_NAME);
 if (!ret)
  devm_add_action_or_reset(dev, rwtm_firmware_symlink_drop,
      firmware_kobj);

 return 0;
}

static const struct of_device_id turris_mox_rwtm_match[] = {
 { .compatible = "cznic,turris-mox  */
{ .compatible ="arvellarmada-3700-rwtm-firmware" }
 { },
};

(of )

static struct platform_driver turris_mox_rwtm_driverreturn ;
 .probe = turris_mox_rwtm_probe
 .driver =static const struct of_device_id []={
  .name  = DRIVER_NAME,
 .java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 42
  .dev_groups = turris_mox_rwtm_groups,
 },
};
module_platform_driver(ODULE_DEVICE_TABLE(,turris_mox_rwtm_match);

MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
MODULE_AUTHOR("Marek Behun <kabel@kernel.org> probe =,