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openwrt/package/utils/util-linux/patches/100-use_urandom.patch

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util-linux: avoid using the getrandom syscall getrandom blocks until the random pool is being initialized. Unfortunately, this code is being called early during init to create the overlay filesystem, on some devices leaving little chance for a successful random pool init. True randomness is not that important here, so fix this issue by sticking to using /dev/urandom, like in older versions of this code. Signed-off-by: Felix Fietkau <nbd@nbd.name>
7 years ago
--- a/lib/randutils.c
+++ b/lib/randutils.c
util-linux: Update to 2.35.1 Update util-linux to 2.35.1 and refresh patches. Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net> [commit subject and description tweaks] Signed-off-by: Petr Štetiar <ynezz@true.cz>
4 years ago
@@ -26,6 +26,11 @@
util-linux: avoid using the getrandom syscall getrandom blocks until the random pool is being initialized. Unfortunately, this code is being called early during init to create the overlay filesystem, on some devices leaving little chance for a successful random pool init. True randomness is not that important here, so fix this issue by sticking to using /dev/urandom, like in older versions of this code. Signed-off-by: Felix Fietkau <nbd@nbd.name>
7 years ago
#define THREAD_LOCAL static
#endif
+/* force /dev/urandom to avoid hanging on early boot */
+#undef HAVE_GETRANDOM
+#undef SYS_getrandom
+#undef __NR_getrandom
+
#ifdef HAVE_GETRANDOM
# include <sys/random.h>
#elif defined (__linux__)