Random number generator inside kernel space
 

Hello all, I'm trying to implement a kernel module and I need a random number generator. Since this is a kernel module, standard functions like rand() will not work, so anybody knows what I should do in order to obtain random or pseudo random number generators? Thanks in advance

Actually, the kernel happens to implement a random number generator, accessible from /dev/random or /dev/urandom, or get_random_bytes().

See "Linux Kernel Development, 2nd Ed", Robert Love, Appendix B for more details.

AFAIK, the .ko modules in 2.6 are linked from .o files (unlike 2.4 modules.) To compile those you generally feed off of the kernel makefile, but I'm sure you could find a way to link in standard libs (statically if nothing else.) I agree with paulsm4, though; /dev/urandom is the best way to go for random.
ta0kira