RTOS/TDA2EVM5777: RTOS: TDA2xx: Suggestions for missing network Socket and IO API's

Sandeep Mantrala

Prodigy 10 points

Part Number: TDA2EVM5777

Tool/software: TI-RTOS

Hello,

We are porting a network library to VSDK.

I am not able to locate few components inside vsdk that are needed by my library

SOCKET API's

- struct msghdr

- recvmsg

- sendmsg

Above structure and the functions are used to exchange socket messages.

IO System calls :

Also, open(), close(), read() and write() are not available despite of including <unistd.h> and various other related headers. What is the procedure to get these API's working?

Thank you.

Best Regards,

Sandeep

over 8 years ago

0 Prasad Jondhale over 8 years ago

TI__Mastermind 27743 points

Hello Sandeep,

The network stack is not part of SDK but is a separate package.
You can fine it under PROCESSOR_SDK_VISION_03_xx_xx_xx\ti_components\networking\ndk_2_24_02_31.

The IO calls you are referring to are from networking context, you can use NDK calls (fopen, fclose etc)

0 Sandeep Mantrala29 over 8 years ago in reply to Prasad Jondhale

Prodigy 40 points

Hello Prasad,

Thank you.
Yes, I am using socketndk.h locate d in networking/ndk_2_24_02_31/packages/ti/ndk/inc/

But there are many socket related functions which are still not available.

I am posting the complete list below :

struct msghdr
recvmsg();
sendmsg();
struct ifreq;
AF_PACKET,
if_nametoindex(),
PF_PACKET,
ARPHRD_ETHER,
PACKET_OTHERHOST,
SIOCGIFMTU
SIOCSIFMTU
SIOCGIFFLAGS,
SIOCSIFFLAGS,
SO_TIMESTAMPING,
...

There are few more symbols that are not available.
These are required to configure network devices through IOCTL's and to controle network timestamping..

Also, I cannot seem to find ioctl() itself.

> Using fwrite() instead
I will try the suggestion.. We are using ioctl() at many places in the code. How about this? I am unable to locate ioctl() in the libraries.

Please suggest the right approach to get the complete access of network layer.

0 Prasad Jondhale over 8 years ago in reply to Sandeep Mantrala29

TI__Mastermind 27743 points

Hello Sandeep,

You would mostly have to find equivalent function/macro in the NDK for the required functionality.
I believe NDK supports only recv and recvfrom, I have pinged NDK owner to comment more. Will update you accordingly.
manpages.ubuntu.com/.../recv.2.html

TI NDK user guide you can find at below link

http://www.ti.com/lit/ug/spru523j/spru523j.pdf

0 Sandeep Mantrala29 over 8 years ago in reply to Prasad Jondhale

Prodigy 40 points

Hi Prasad,

I will look forward to the comments.

What about the missing ioctl() API and all socket options that it supports?
How do you achieve this?

Thank you.

Bet Regards,
Sandeep

0 Prasad Jondhale over 8 years ago in reply to Sandeep Mantrala29

TI__Mastermind 27743 points

Hello Sandeep,

Checked with our networking experts.
These APIs are not supported in current version of NDK releases. We'll try to address these in next releases but again not all API set would be supported.
Hence I would recommend you to find equivalent APIs in current NDK for your porting.

Hope this helps.

0 Sandeep Mantrala29 over 8 years ago in reply to Prasad Jondhale

Prodigy 40 points

Hi Prasad,

Thank you. I will check the current NDK to find equivalent API's.
Lastly, Can you please comment on ioctl()? Dont we have a IOCTL framework available?

Best Regards,
Sandeep Kumar

0 Prasad Jondhale over 8 years ago in reply to Sandeep Mantrala29

TI__Mastermind 27743 points

Hello Sandeep,

Can you please elaborate more on ioctl requirement? Do you need this file I/O? or network file descriptors?

0 Sandeep Mantrala29 over 8 years ago in reply to Prasad Jondhale

Prodigy 40 points

Hi Prasad,

We need it for network file descriptors.
For now, we are good. I will let you know if any more information is required. Thank you.

Processors

Processors forum

RTOS/TDA2EVM5777: RTOS: TDA2xx: Suggestions for missing network Socket and IO API's