meta-agl-core/recipes-support/rng-tools/rng-tools/0002-rngd_jitter-initialize-AES-key-before-setting-the-en.patch

   1 From 330c2ba14510c8103b30d5021adb18f1534031a1 Mon Sep 17 00:00:00 2001
   2 From: Matthias Schiffer <matthias.schiffer@tq-group.com>
   3 Date: Wed, 27 Jan 2021 16:18:09 +0100
   4 Subject: [PATCH] rngd_jitter: initialize AES key before setting the entropy
   5  pipe to O_NONBLOCK
   6
   7 Signed-off-by: Matthias Schiffer <matthias.schiffer@tq-group.com>
   8 ---
   9  rngd_jitter.c | 9 +++++----
  10  1 file changed, 5 insertions(+), 4 deletions(-)
  11
  12 diff --git a/rngd_jitter.c b/rngd_jitter.c
  13 index 25b3543..48f344c 100644
  14 --- a/rngd_jitter.c
  15 +++ b/rngd_jitter.c
  16 @@ -463,10 +463,6 @@ int init_jitter_entropy_source(struct rng *ent_src)
  17                 pthread_mutex_unlock(&tdata[i].statemtx);
  18         }
  19
  20 -       flags = fcntl(pipefds[0], F_GETFL, 0);
  21 -       flags |= O_NONBLOCK;
  22 -       fcntl(pipefds[0], F_SETFL, flags);
  23 -
  24         if (ent_src->rng_options[JITTER_OPT_USE_AES].int_val) {
  25  #ifdef HAVE_LIBGCRYPT
  26                 /*
  27 @@ -487,6 +483,11 @@ int init_jitter_entropy_source(struct rng *ent_src)
  28                         ent_src->rng_options[JITTER_OPT_USE_AES].int_val = 1;
  29                 }
  30                 xread_jitter(aes_buf, tdata[0].buf_sz, ent_src);
  31 +
  32 +               flags = fcntl(pipefds[0], F_GETFL, 0);
  33 +               flags |= O_NONBLOCK;
  34 +               fcntl(pipefds[0], F_SETFL, flags);
  35 +
  36  #else
  37                 message_entsrc(ent_src,LOG_CONS|LOG_INFO, "libgcrypt not available. Disabling AES in JITTER source\n");
  38                 ent_src->rng_options[JITTER_OPT_USE_AES].int_val = 0;