From: Mengdong Lin <mengdong.lin@linux.intel.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: alsa-devel@alsa-project.org, vinod.koul@intel.com,
mengdong.lin@intel.com, broonie@kernel.org,
rakesh.a.ughreja@intel.com, liam.r.girdwood@intel.com,
hardik.t.shah@intel.com, subhransu.s.prusty@intel.com
Subject: Re: [PATCH v2 6/7] topology: Add support for parsing vendor tuples
Date: Tue, 5 Apr 2016 13:47:08 +0800 [thread overview]
Message-ID: <5703515C.3070506@linux.intel.com> (raw)
In-Reply-To: <s5hvb44770c.wl-tiwai@suse.de>
On 03/30/2016 03:35 PM, Takashi Iwai wrote:
> On Wed, 30 Mar 2016 09:11:17 +0200,
> mengdong.lin@linux.intel.com wrote:
>>
>> + switch (type) {
>> + case SND_SOC_TPLG_TUPLE_TYPE_UUID:
>> + len = strlen(value);
>> + if (len > 16 || len == 0) {
>> + SNDERR("error: tuple %s: invalid uuid\n", id);
>> + goto err;
>> + }
>> +
>> + memcpy(tuple->uuid, value, 16);
>
> This may still overflow :)
> How about simply using elem_copy_text()?
Sorry for the late reply.
Would you mind me using uuid_parse() here?
It can convert an input UUID string into the binary representation.
An UUID string link "1b4e28ba-2fa1-11d2-883f-b9a761bde3fb" is user
friendly for the text conf file. But this will add dependency on libuuid.
>
>> + case SND_SOC_TPLG_TUPLE_TYPE_BYTE:
>> + case SND_SOC_TPLG_TUPLE_TYPE_SHORT:
>> + case SND_SOC_TPLG_TUPLE_TYPE_WORD:
>> + tuple_val = strtol(value, NULL, 0);
>> + if (tuple_val == LONG_MIN || tuple_val == LONG_MAX
>> + || (type == SND_SOC_TPLG_TUPLE_TYPE_WORD
>> + && tuple_val > 0xffffffff)
>
> Is the check correct on 32bit architecture?
I'll test on 32 bit machine and will use UINT/USHRT/UCHAR_MAX for range
here.
>> + || (type == SND_SOC_TPLG_TUPLE_TYPE_SHORT
>> + && tuple_val > 0xffff)
>> + || (type == SND_SOC_TPLG_TUPLE_TYPE_BYTE
>> + && tuple_val > 0xff)) {
>
> Also, what about negative values?
I will add check, we don't expect to have negative value here.
Thanks again for your review.
Regards
Mengdong
>
> Takashi
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>
next prev parent reply other threads:[~2016-04-05 5:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-30 7:09 [PATCH v2 0/7] topology: Add support for vendor tuples mengdong.lin
2016-03-30 7:10 ` [PATCH v2 1/7] topology: Use the generic pointer to free an element's object mengdong.lin
2016-03-30 7:10 ` [PATCH v2 2/7] topology: Define a free handler for the element mengdong.lin
2016-03-30 7:10 ` [PATCH v2 3/7] topology: Add doc for vendor tuples mengdong.lin
2016-03-30 7:11 ` [PATCH v2 4/7] topology: ABI - Define types " mengdong.lin
2016-03-30 7:11 ` [PATCH v2 5/7] topology: Add support for vendor tokens mengdong.lin
2016-03-30 7:11 ` [PATCH v2 6/7] topology: Add support for parsing vendor tuples mengdong.lin
2016-03-30 7:35 ` Takashi Iwai
2016-04-05 5:47 ` Mengdong Lin [this message]
2016-04-05 6:14 ` Takashi Iwai
2016-04-05 8:53 ` Mengdong Lin
2016-04-05 9:38 ` Takashi Iwai
2016-04-05 15:38 ` Lin, Mengdong
2016-03-30 7:11 ` [PATCH v2 7/7] topology: Build data objects with tuples mengdong.lin
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