Hello everyone,
I am working with a VPN server and using openssl APIs to handle SSL on
Linux machine.
My server work fine with single client but it shows the segmentation
fault when i test it
with multiple clients.
**Which OS? Which thread library? pthread/Solaris thread/Win Thread etc?
If there is a seq fault, then what does the core file say about the stack
trace?
I have different threads in my server handling different
functionalities. Read and write threads are working
simultaneously sharing the same SSL structure.
The structure of my server is..
1- initializing the openssl library.
2. Context setup(certificates etc).
3. TCP connection.
4. SSL_new(ctx)
5. ssl_set_fd..
6. ssl_accept(..)
7. Result of the certificate verification...
8. Starting the threads...Read and write..
9. Successful disconnection request from any of the connected client,
i am freeing the object memory of that particular connection..
using SSL_clear(..)let pssl[j] so SSL_clear(pss[j]).
** I think to safely use openssl in a MT environment, you also have to
implement the callback functions
as described in:
http://www.openssl.org/docs/crypto/threads.html
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