Message ID | alpine.DEB.2.21.2004032112060.11467@digraph.polyomino.org.uk |
---|---|
State | New |
Headers | show |
Series | Add GRND_INSECURE from Linux 5.6 to sys/random.h | expand |
On 03/04/2020 18:12, Joseph Myers wrote: > This patch adds the GRND_INSECURE constant from Linux 5.6 to glibc's > sys/random.h. This is also added to the documentation. The constant > acts as a no-op for the Hurd implementation (as that doesn't check > whether the flags are known), which is semantically fine, while older > Linux kernels reject unknown flags with an EINVAL error. > > Tested for x86_64. LGTM, it follows Linux commit 75551dbf112c9. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> > > diff --git a/manual/crypt.texi b/manual/crypt.texi > index c41b911c8f..af23dd7847 100644 > --- a/manual/crypt.texi > +++ b/manual/crypt.texi > @@ -301,6 +301,9 @@ booted and the randomness source has not yet been initialized. > @item GRND_NONBLOCK > Instead of blocking, return to the caller immediately if no data is > available. > + > +@item GRND_INSECURE > +Write random data that may not be cryptographically secure. > @end table > > Unlike @code{getentropy}, the @code{getrandom} function is a > diff --git a/stdlib/sys/random.h b/stdlib/sys/random.h > index b351ef5c8c..1df6e9b844 100644 > --- a/stdlib/sys/random.h > +++ b/stdlib/sys/random.h > @@ -25,6 +25,7 @@ > /* Flags for use with getrandom. */ > #define GRND_NONBLOCK 0x01 > #define GRND_RANDOM 0x02 > +#define GRND_INSECURE 0x04 > > __BEGIN_DECLS > >
diff --git a/manual/crypt.texi b/manual/crypt.texi index c41b911c8f..af23dd7847 100644 --- a/manual/crypt.texi +++ b/manual/crypt.texi @@ -301,6 +301,9 @@ booted and the randomness source has not yet been initialized. @item GRND_NONBLOCK Instead of blocking, return to the caller immediately if no data is available. + +@item GRND_INSECURE +Write random data that may not be cryptographically secure. @end table Unlike @code{getentropy}, the @code{getrandom} function is a diff --git a/stdlib/sys/random.h b/stdlib/sys/random.h index b351ef5c8c..1df6e9b844 100644 --- a/stdlib/sys/random.h +++ b/stdlib/sys/random.h @@ -25,6 +25,7 @@ /* Flags for use with getrandom. */ #define GRND_NONBLOCK 0x01 #define GRND_RANDOM 0x02 +#define GRND_INSECURE 0x04 __BEGIN_DECLS