#include #include #include #include #include "rnd.h" #include "die.h" #include "ioexact.h" #include "ioops.h" static int fdw = -1; static void randombytes_weak(unsigned char *x, unsigned long long xlen) { int ret; if (fdw == -1) { for (;;) { fdw = open(LOW_ENTROPY_SOURCE, O_RDONLY); if (fdw != -1) break; sleep(1); } } while (xlen > 0) { if (xlen < 1048576) ret = xlen; else ret = 1048576; ret = read(fdw, x, ret); if (ret < 1) { sleep(1); continue; } x += ret; xlen -= ret; } } static void randombytes_strong(unsigned char *x, unsigned long long xlen) { int fds, ret; fds = open_or_die(HIG_ENTROPY_SOURCE, O_RDONLY); ret = read_exact(fds, x, xlen, 0); if (ret != xlen) panic("Error reading from entropy source!\n"); close(fds); } int secrand(void) { int ret; randombytes_weak((void *) &ret, sizeof(ret)); return ret; } void gen_key_bytes(unsigned char *area, size_t len) { randombytes_strong(area, len); } a822097d27c6af8ec8'/> net-next plumbingsTobias Klauser

summary refs log tree commit diff

path: root/include/uapi

diff options

author	Jens Axboe <axboe@fb.com>	2017-01-27 11:56:06 -0700
committer	Jens Axboe <axboe@fb.com>	2017-01-27 11:56:06 -0700
commit	c14024dbb156c8392908aaa822097d27c6af8ec8 (patch)
tree	02f6ffa664b16bd76750c05f62708a518de2acdc /include/uapi
parent	08965c2eba135bdfb6e86cf25308e01421c7e0ce (diff)
parent	3b4f18843e511193e7eb616710e838f5852e661d (diff)

Merge branch 'stable/for-jens-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus

Konrad writes: Please pull in your 'for-linus' branch two little fixes for Xen block front: One fix is for handling the XEN_PAGE_SIZE != PAGE_SIZE (4KB vs 64KB on ARM for example) mishandling while the other is fixing the accounting for the configuration changes.

Diffstat (limited to 'include/uapi')