tree fa338c3e673a3b4ac4cfa174c2504f83c77010a4
parent 9e8db138c9e50262f2aae898bbc9b9b0b9a93449
author Dragan Dosen <ddosen@haproxy.com> 1614010801 +0100
committer Willy Tarreau <w@1wt.eu> 1614097366 +0100
encoding latin1

BUG/MEDIUM: vars: make functions vars_get_by_{name,desc} thread-safe

This patch adds a lock to functions vars_get_by_name() and
vars_get_by_desc() to protect accesses to the list of variables.

After the variable is fetched, a sample data is duplicated by using
smp_dup() because the variable may be modified by another thread.

This should be backported to all versions supporting vars along with
"BUG/MINOR: sample: secure convs that accept base64 string and var name
as args" which this patch depends on.