tree 91c1f7178bcd10e6b5b85502f65bbe19e28815d0
parent 11a23edcf6f4ccaef80bf81c528412de513a0c8b
author Dragan Dosen <ddosen@haproxy.com> 1614010801 +0100
committer Christopher Faulet <cfaulet@haproxy.com> 1614201638 +0100

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.

(cherry picked from commit 14518f2305027dfd537c1be0f88350337b5fba23)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>