示例#1
0
/**************************************************************************
 *  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[16];    
    META_CONTEXT meta_ctx;
    int status                  = 0;

    /* ---------------------------------- */
    /* 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 = masp_boot_init();
            sec_core_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();
                sec_update_lks(seccfg.v1.sw_sec_lock_try, seccfg.v1.sw_sec_lock_done, seccfg.v1.attr == ATTR_DISABLE_IMG_CHECK);
                masp_hal_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();
                sec_update_lks(seccfg.v3.sw_sec_lock_try, seccfg.v3.sw_sec_lock_done, seccfg.v3.seccfg_attr == ATTR_DISABLE_IMG_CHECK);
                masp_hal_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();
                masp_hal_sp_hacc_dec((unsigned char*)&seccfg.v1.image_info,cipher_len,rom_info.m_SEC_CTRL.m_seccfg_ac_en,HACC_USER1,FALSE);
                sec_update_lks(seccfg.v1.sw_sec_lock_try, seccfg.v1.sw_sec_lock_done, seccfg.v1.attr == ATTR_DISABLE_IMG_CHECK);
            }
            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();
                masp_hal_sp_hacc_dec((unsigned char*)&seccfg.v3.image_info,cipher_len,rom_info.m_SEC_CTRL.m_seccfg_ac_en,HACC_USER1,FALSE);
                sec_update_lks(seccfg.v3.sw_sec_lock_try, seccfg.v3.sw_sec_lock_done, seccfg.v3.seccfg_attr == ATTR_DISABLE_IMG_CHECK);
            }
            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 ? */
            masp_hal_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;
            }

            masp_hal_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;     
            
        
        /* ---------------------------------- */
        /* notify check status          */
        /* ---------------------------------- */
        case SEC_BOOT_NOTIFY_STATUS:     
            ret = osal_copy_from_user((void *)&status, (void __user *)arg, sizeof(int)); 
            SMSG(true,"[%s] sbchk status : '0x%x' \n",MOD,status);
            break;
    }

    return 0;
}
/******************************************************************************
 * RETURN SECROIMG MD PLAINTEXT DATA
 ******************************************************************************/
uint32 masp_secro_md_get_data (uchar *md_info, uchar* buf, uint32 offset, uint32 len)
{
    uint32 ret = SEC_OK;
    uint32 cipher_len = sizeof(AND_AC_ANDRO_T) + sizeof(AND_AC_MD_T) + sizeof(AND_AC_MD2_T);   
    AND_AC_MD_INFO_V3a_T* cur_md_info = NULL;
    uint32 md_info_len = 0; 
    uint32 index = 0;

    osal_secro_lock();

    /* ----------------- */
    /* check             */
    /* ----------------- */

    if (NULL == md_info)
    {
        ret = ERR_SECROIMG_EMPTY_MD_INFO_STR;
        goto _exit;
    }
    else
    {
        md_info_len = strlen(md_info);    
    }

    if(FALSE == bSecroExist)
    {
        ret = ERR_SECROIMG_IS_EMPTY;
        goto _exit;
    }

    if(len == 0)
    {
        ret = ERR_SECROIMG_INVALID_BUF_LEN;
        goto _exit;
    }

    if (0 != (len % masp_hal_sp_hacc_blk_sz())) 
    {   
        ret = ERR_HACC_DATA_UNALIGNED;
        goto _exit;
    }    

    /* check if it only supports secro v3 format */
    if (0 == secroimg.m_header.world_phone_support)
    {

        SMSG(TRUE,"[%s]sro v3  \n",MOD);
    /* ------------------------ */       
    /* decrypt secroimg         */
    /* ------------------------ */
    if(TRUE == sec_secro_ac())
    {
        masp_hal_sp_hacc_dec((uchar*)&secroimg.m_andro, cipher_len, TRUE,HACC_USER1,TRUE);
    }

    /* ------------------------ */       
    /* check header             */
    /* ------------------------ */                
    if(AC_ANDRO_MAGIC != secroimg.m_andro.magic_number)
    {
        ret = ERR_SECROIMG_HACC_AP_DECRYPT_FAIL;
        goto _exit;
    }

    if(AC_MD_MAGIC != secroimg.m_md.magic_number)
    {
        ret = ERR_SECROIMG_HACC_MD_DECRYPT_FAIL;                    
        goto _exit;
    }
  
    if(AC_MD2_MAGIC != secroimg.m_md2.magic_number)
    {
        ret = ERR_SECROIMG_HACC_MD_DECRYPT_FAIL;                    
        goto _exit;
    }
    
    /* ------------------------ */       
    /* fill buffer              */
    /* ------------------------ */    
    /* only copy the data with user specified length */
        
        /* check if this image's information exist */
        if ('1' == md_info[0])
    {
            mcpy(buf,secroimg.m_md.reserve+offset,len);
        }
        else if ('2' == md_info[0])
        {
            mcpy(buf,secroimg.m_md2.reserve+offset,len);
        }
        else
        {
            SMSG(TRUE,"[%s] MD user not supported!\n",MOD);            
    }
    
    /* ------------------------ */       
    /* encrypt secro image      */
    /* ------------------------ */ 
    if(TRUE == sec_secro_ac())
    {    
        masp_hal_sp_hacc_enc((uchar*)&secroimg.m_andro, cipher_len, TRUE,HACC_USER1,TRUE);
    }
    }
    else 
    {

        SMSG(TRUE,"[%s]sro v5  \n",MOD);
        /* ----------------------------- */       
        /* if it supports v5 format      */
        /* ----------------------------- */

        /* check if this image's information exist */
        for(index=0; index<MAX_V5_SUPPORT_MD_NUM; index++)
        {   
            cur_md_info = &(secroimg.m_padding.md_v3a_info[index]);
            if(0 == strncmp(md_info,cur_md_info->md_name+strlen("SECURE_RO_"),md_info_len))
            {   
            break;
    }
        }

        /* md info dees not exist */
        if (MAX_V5_SUPPORT_MD_NUM == index)
        {
            ret = ERR_SECROIMG_MD_INFO_NOT_EXIST;
            goto _exit;
        }
    
    /* ------------------------ */       
        /* read secro v5 from flash */
        /* ------------------------ */       
        bSecroV5Exist = FALSE;
        bSecroV5Intergiy = FALSE;
        if(SEC_OK != (ret = sec_dev_read_secroimg_v5(index)))
        {
            goto _exit;
        }
        else
        {
            /* ------------------------ */       
            /* decrypt secroimg         */
    /* ------------------------ */ 
            cipher_len = sizeof(AND_AC_MD_INFO_V5a_T) + sizeof(AND_AC_MD_V5a_T);
    if(TRUE == sec_secro_ac())
    {    
        masp_hal_sp_hacc_dec((uchar*)&secroimg_v5.m_md_info_v5a, cipher_len, TRUE,HACC_USER1,TRUE);
    }

            /* ------------------------ */       
            /* check header             */
            /* ------------------------ */                
            if(AC_MD_INFO_MAGIC != secroimg_v5.m_md_info_v5a.magic_number)
            {
                ret = ERR_SECROIMG_HACC_MD_DECRYPT_FAIL;                    
                goto _exit;
            }

            if(AC_SV5_MAGIC_MD_V5a != secroimg_v5.m_md_sro_v5a.magic_number)
            {
                ret = ERR_SECROIMG_HACC_MD_DECRYPT_FAIL;                    
                goto _exit;
            }

            /* ------------------------ */       
            /* fill buffer              */
            /* ------------------------ */    
            /* only copy the data with user specified length */
            mcpy(buf,secroimg_v5.m_md_sro_v5a.reserve+offset,len);

            /* no need to encrypt since next time, we'll read it again from flash*/
        }
    }
    

_exit:

    osal_secro_unlock();

    return ret;
}