diff options
| author | Sebastien Bacher <seb128@ubuntu.com> | 2020-05-19 16:38:51 +0200 |
|---|---|---|
| committer | Sebastien Bacher <seb128@ubuntu.com> | 2020-05-19 16:38:51 +0200 |
| commit | 96642ebde58e1eea692aea6a92d33f45452fa9c0 (patch) | |
| tree | 106ddfa2180b3997e8965787b5cb122982ebab9d /shared/systemd/src/basic/random-util.c | |
| parent | 8f6881ac06714ef99cc470a03e7ac0ce1af49a16 (diff) | |
| parent | d460892bbfece74fb6d3cd846bf6ef548290be41 (diff) | |
Merge branch 'upstream/latest' of https://salsa.debian.org/utopia-team/network-manager into upstream/latestt pu
Diffstat (limited to 'shared/systemd/src/basic/random-util.c')
| -rw-r--r-- | shared/systemd/src/basic/random-util.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/shared/systemd/src/basic/random-util.c b/shared/systemd/src/basic/random-util.c index 86917ca3..1a294944 100644 --- a/shared/systemd/src/basic/random-util.c +++ b/shared/systemd/src/basic/random-util.c @@ -9,6 +9,7 @@ #include <elf.h> #include <errno.h> #include <fcntl.h> +#include <pthread.h> #include <stdbool.h> #include <stdint.h> #include <stdlib.h> @@ -30,6 +31,8 @@ #include "siphash24.h" #include "time-util.h" +static bool srand_called = false; + int rdrand(unsigned long *ret) { /* So, you are a "security researcher", and you wonder why we bother with using raw RDRAND here, @@ -281,8 +284,12 @@ int genuine_random_bytes(void *p, size_t n, RandomFlags flags) { return loop_read_exact(fd, p, n, true); } +static void clear_srand_initialization(void) { + srand_called = false; +} + void initialize_srand(void) { - static bool srand_called = false; + static bool pthread_atfork_registered = false; unsigned x; #if HAVE_SYS_AUXV_H const void *auxv; @@ -318,6 +325,11 @@ void initialize_srand(void) { srand(x); srand_called = true; + + if (!pthread_atfork_registered) { + (void) pthread_atfork(NULL, NULL, clear_srand_initialization); + pthread_atfork_registered = true; + } } /* INT_MAX gives us only 31 bits, so use 24 out of that. */ |