Example #1
0
static int hiir_read(char *buf, int count, long *f_pos, void *private_data)
{
    irkey_info_s irkey_to_user;
    int res = 0;

retry :
    hiir_dbg("Enter hiir_read : head=%d, tail=%d, buf_len=%d\n", hiir_dev.head, hiir_dev.tail, hiir_dev.buf_len);

    if((hiir_dev.head)==(hiir_dev.tail))
    {

        res = osal_wait_event(&(hiir_dev.irkey_wait),(hiir_dev.head != hiir_dev.tail));
        if (0 != res)
        {
            return res;
        }
        goto retry;
    }
    else
    {
        while( ((hiir_dev.head)!=(hiir_dev.tail)) && ((res + sizeof(irkey_info_s)) <= count) )
        {
            irkey_to_user = BUF_TAIL;
            hiir_dev.tail = INC_BUF(hiir_dev.tail, hiir_dev.buf_len);
            if(osal_copy_to_user((buf + res), &irkey_to_user, sizeof(irkey_info_s)))
            {
				osal_printk("%s: copy_to_user fail!\n",__func__);
            }
            res += sizeof(irkey_info_s);
        }
    }
    return res;
}
/**************************************************************************
 *  SEC DRIVER IOCTL
 **************************************************************************/ 
long sec_core_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
    int err                     = 0;
    int ret                     = 0;
    unsigned int cipher_len     = 0;    
    unsigned int rid[4];
    unsigned char part_name[10];    
    META_CONTEXT meta_ctx;

    /* ---------------------------------- */
    /* IOCTL                              */
    /* ---------------------------------- */

    if (_IOC_TYPE(cmd) != SEC_IOC_MAGIC)
        return -ENOTTY;
    if (_IOC_NR(cmd) > SEC_IOC_MAXNR)
        return -ENOTTY;
    if (_IOC_DIR(cmd) & _IOC_READ)
        err = !access_ok(VERIFY_WRITE, (void __user *)arg, _IOC_SIZE(cmd));
    if (_IOC_DIR(cmd) & _IOC_WRITE)
        err = !access_ok(VERIFY_READ, (void __user *)arg, _IOC_SIZE(cmd));
    if (err) return -EFAULT;
    
    switch (cmd) {

        /* ---------------------------------- */
        /* get random id                      */
        /* ---------------------------------- */
        case SEC_GET_RANDOM_ID:
            SMSG(bMsg,"[%s] CMD - SEC_GET_RANDOM_ID\n",MOD);
            sec_get_random_id(&rid[0]);
            ret = osal_copy_to_user((void __user *)arg, (void *)&rid[0], sizeof(unsigned int) * 4);
            break;            

        /* ---------------------------------- */
        /* init boot info                     */
        /* ---------------------------------- */
        case SEC_BOOT_INIT:
            SMSG(bMsg,"[%s] CMD - SEC_BOOT_INIT\n",MOD);
            ret = sec_boot_init();
            ret = osal_copy_to_user((void __user *)arg, (void *)&ret, sizeof(int));            
            break;


        /* ---------------------------------- */
        /* check if secure boot is enbaled    */
        /* ---------------------------------- */
        case SEC_BOOT_IS_ENABLED:
            SMSG(bMsg,"[%s] CMD - SEC_BOOT_IS_ENABLED\n",MOD);
            ret = sec_boot_enabled();
            ret = osal_copy_to_user((void __user *)arg, (void *)&ret, sizeof(int));            
            break;

        /* ---------------------------------- */
        /* encrypt sec cfg                    */
        /* ---------------------------------- */
        case SEC_SECCFG_ENCRYPT:
            SMSG(bMsg,"[%s] CMD - SEC_SECCFG_ENCRYPT\n",MOD);   
            if(copy_from_user((void *)&seccfg, (void __user *)arg, sizeof(SECCFG_U)))
            {
                return -EFAULT;
            }

            /* specify encrpytion length */
            SMSG(true,"[%s] SECCFG v%d\n",MOD,get_seccfg_ver());            
            if (SEC_CFG_END_PATTERN == seccfg.v1.end_pattern)
            {
                if((SECCFG_V1 != get_seccfg_ver()) && (SECCFG_V1_2 != get_seccfg_ver()))
                {
                    SMSG(true,"[%s] mismatch seccfg version v%d\n",MOD,get_seccfg_ver());
                    SEC_ASSERT(0);
                }
                
                cipher_len = get_seccfg_cipher_len();
                sp_hacc_enc((unsigned char*)&seccfg.v1.image_info,cipher_len,rom_info.m_SEC_CTRL.m_seccfg_ac_en,HACC_USER1,FALSE);
            }
            else if (SEC_CFG_END_PATTERN == seccfg.v3.end_pattern)
            {
                if(SECCFG_V3 != get_seccfg_ver())
                {
                    SMSG(true,"[%s] mismatch seccfg version v%d\n",MOD,get_seccfg_ver());
                    SEC_ASSERT(0);
                }
                
                cipher_len = get_seccfg_cipher_len();
                sp_hacc_enc((unsigned char*)&seccfg.v3.image_info,cipher_len,rom_info.m_SEC_CTRL.m_seccfg_ac_en,HACC_USER1,FALSE);
            }
            else
            {
                SMSG(true,"[%s] wrong seccfg version v%d\n",MOD,seccfg.v3.seccfg_ver)
                SEC_ASSERT(0);
            }

            ret = osal_copy_to_user((void __user *)arg, (void *)&seccfg, sizeof(SECCFG_U));
            break;

        /* ---------------------------------- */
        /* decrypt sec cfg                    */
        /* ---------------------------------- */
        case SEC_SECCFG_DECRYPT:
            SMSG(bMsg,"[%s] CMD - SEC_SECCFG_DECRYPT\n",MOD);   
            if(copy_from_user((void *)&seccfg, (void __user *)arg, sizeof(SECCFG_U)))
            {
                return -EFAULT;
            }

            /* specify decrpytion length */
            if (SEC_CFG_END_PATTERN == seccfg.v1.end_pattern)
            {
                /* seccfg version should be corrected by caller */
                set_seccfg_ver(SECCFG_V1); 
                cipher_len = get_seccfg_cipher_len();
                sp_hacc_dec((unsigned char*)&seccfg.v1.image_info,cipher_len,rom_info.m_SEC_CTRL.m_seccfg_ac_en,HACC_USER1,FALSE);
            }
            else if (SEC_CFG_END_PATTERN == seccfg.v3.end_pattern)
            {
                /* seccfg version should be corrected by caller */
                set_seccfg_ver(SECCFG_V3);
                cipher_len = get_seccfg_cipher_len();
                sp_hacc_dec((unsigned char*)&seccfg.v3.image_info,cipher_len,rom_info.m_SEC_CTRL.m_seccfg_ac_en,HACC_USER1,FALSE);
            }
            else
            {
                SMSG(true,"[%s] wrong seccfg version v%d\n",MOD,seccfg.v3.seccfg_ver)
                SEC_ASSERT(0);
            }

            SMSG(bMsg,"[%s] SECCFG v%d\n",MOD,get_seccfg_ver());  
            
            ret = osal_copy_to_user((void __user *)arg, (void *)&seccfg, sizeof(SECCFG_U));
            break;

        /* ---------------------------------- */
        /* NVRAM HW encryption                */
        /* ---------------------------------- */
        case SEC_NVRAM_HW_ENCRYPT:
            SMSG(bMsg,"[%s] CMD - SEC_NVRAM_HW_ENCRYPT\n",MOD);   
            if(osal_copy_from_user((void *)&meta_ctx, (void __user *)arg, sizeof(meta_ctx)))
            {
                return -EFAULT;
            }

            /* TODO : double check if META register is correct ? */
            sp_hacc_enc((unsigned char*)&(meta_ctx.data),NVRAM_CIPHER_LEN,TRUE,HACC_USER2,FALSE);
            meta_ctx.ret = SEC_OK;
            
            ret = osal_copy_to_user((void __user *)arg, (void *)&meta_ctx, sizeof(meta_ctx));
            break;

        /* ---------------------------------- */
        /* NVRAM HW decryption                */
        /* ---------------------------------- */
        case SEC_NVRAM_HW_DECRYPT:
            SMSG(bMsg,"[%s] CMD - SEC_NVRAM_HW_DECRYPT\n",MOD);   
            if(osal_copy_from_user((void *)&meta_ctx, (void __user *)arg, sizeof(meta_ctx)))
            {
                return -EFAULT;
            }

            sp_hacc_dec((unsigned char*)&(meta_ctx.data),NVRAM_CIPHER_LEN,TRUE,HACC_USER2,FALSE);
            meta_ctx.ret = SEC_OK;
            ret = osal_copy_to_user((void __user *)arg, (void *)&meta_ctx, sizeof(meta_ctx));
            break;

        /* ---------------------------------- */
        /* check if secure usbdl is enbaled   */
        /* ---------------------------------- */
        case SEC_USBDL_IS_ENABLED:
            SMSG(bMsg,"[%s] CMD - SEC_USBDL_IS_ENABLED\n",MOD);
            ret = sec_usbdl_enabled();
            ret = osal_copy_to_user((void __user *)arg, (void *)&ret, sizeof(int));            
            break;

        /* ---------------------------------- */
        /* configure HACC HW (include SW KEY)  */
        /* ---------------------------------- */
        case SEC_HACC_CONFIG:
            SMSG(bMsg,"[%s] CMD - SEC_HACC_CONFIG\n",MOD);
            ret = sec_boot_hacc_init();
            ret = osal_copy_to_user((void __user *)arg, (void *)&ret, sizeof(int));            
            break;

        /* ---------------------------------- */
        /* enable HACC HW clock                */
        /* ---------------------------------- */
        case SEC_HACC_ENABLE_CLK:
            SMSG(bMsg,"[%s] CMD - SEC_HACC_ENABLE_CLK\n",MOD);
            ret = osal_copy_to_user((void __user *)arg, (void *)&ret, sizeof(int));            
            break;

        /* ---------------------------------- */
        /* lock hacc function                  */
        /* ---------------------------------- */
        case SEC_HACC_LOCK:
        
            SMSG(bMsg,"[%s] CMD - SEC_HACC_LOCK\n",MOD);   
            SMSG(bMsg,"[%s] lock\n",MOD);

            /* If the semaphore is successfully acquired, this function returns 0.*/                
            ret = osal_hacc_lock();

            if(ret)
            {
                SMSG(true,"[%s] ERESTARTSYS\n",MOD);
                return -ERESTARTSYS;
            }

            return ret;
            
        /* ---------------------------------- */
        /* unlock hacc function                */
        /* ---------------------------------- */
        case SEC_HACC_UNLOCK:

            SMSG(bMsg,"[%s] CMD - SEC_HACC_UNLOCK\n",MOD);   
            SMSG(bMsg,"[%s] unlock\n",MOD);

            osal_hacc_unlock();
            
            break;

        /* ---------------------------------- */
        /* check if secure boot check enabled */
        /* ---------------------------------- */
        case SEC_BOOT_PART_CHECK_ENABLE:
            SMSG(bMsg,"[%s] CMD -SEC_BOOT_PART_CHECK_ENABLE\n",MOD);
            if(copy_from_user((void *)part_name, (void __user *)arg, sizeof(part_name)))
            {
                return -EFAULT;
            }
            ret = sec_boot_check_part_enabled (part_name);
            SMSG(bMsg,"[%s] result '0x%x'\n",MOD,ret);
            return ret;

        /* ---------------------------------- */
        /* notify mark incomplete             */
        /* ---------------------------------- */
        case SEC_BOOT_NOTIFY_MARK_STATUS:
            SMSG(true,"[%s] mark status\n",MOD);
            /* may do some post process here ... */
            break;

        /* ---------------------------------- */
        /* notify check pass                  */
        /* ---------------------------------- */
        case SEC_BOOT_NOTIFY_PASS:
            SMSG(true,"[%s] sbchk pass\n",MOD);
            SMSG(true,"[%s] sbchk pass\n",MOD);
            SMSG(true,"[%s] sbchk pass\n",MOD);
            SMSG(true,"[%s] sbchk pass\n",MOD);            
            SMSG(true,"[%s] sbchk pass\n",MOD);
            /* may do some post process here ... */
            break;

        /* ---------------------------------- */
        /* notify check fail                  */
        /* ---------------------------------- */
        case SEC_BOOT_NOTIFY_FAIL:
            if(osal_copy_from_user((void *)part_name, (void __user *)arg, sizeof(part_name)))
            {
                return -EFAULT;
            }

            SMSG(true,"[%s] sbchk fail '%s'\n",MOD,part_name);
            SMSG(true,"[%s] sbchk fail '%s'\n",MOD,part_name);
            SMSG(true,"[%s] sbchk fail '%s'\n",MOD,part_name);
            SMSG(true,"[%s] sbchk fail '%s'\n",MOD,part_name);
            SMSG(true,"[%s] sbchk fail '%s'\n",MOD,part_name);
            osal_msleep(3000);
            /* punishment ... */    
            SEC_ASSERT(0);
            break;

        /* ---------------------------------- */
        /* notify recovery mode done          */
        /* ---------------------------------- */
        case SEC_BOOT_NOTIFY_RMSDUP_DONE:
            SMSG(true,"[%s] recovery mode done\n",MOD);
            /* may do some post process here ... */
            break;

        /* ---------------------------------- */
        /* read rom info                      */
        /* ---------------------------------- */
        case SEC_READ_ROM_INFO:
            SMSG(bMsg,"[%s] read rom info\n",MOD);            
            ret = osal_copy_to_user((void __user *)arg, (void *)&rom_info, sizeof(AND_ROMINFO_T));
            break;        
    }

    return 0;
}