CODEWITHSUNDEEP
linux-kernel
Niranjan
Niranjan

Reputation: 31

Socket function definition?

When reading C source code, I see the socket function used to open a connection. When I search for the definition of socket in the Linux kernel source code (version 3 and above) using grep, I can find more calls to socket but not the definition.

Where is socket defined? Is it defined in the source code of the ethernet card?

Upvotes: 0

Views: 942

Answers (2)

Grant Curell
Grant Curell

Reputation: 1783

I realize this thread is ancient, but I actually had to go look this up because I'm working on a security stack that does 10Gb/s and needed to know how this was implemented. I was able to find the source here: https://github.com/torvalds/linux/blob/master/net/socket.c

Upvotes: 0

Ole
Ole

Reputation: 19

The socket() function is not a kernel function, it is a libc one.

If you want to study socket() internals get the code of the glibc (or any implementation of the standard C library), not the kernel code.

If you plan to go even deeper than that and study how the kernel implements the sockets mechanism look for the system call sys_socketcall().

Upvotes: 2

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