From 9ee896d5dd98ee9fba7c0ee40784a1266661cd5f Mon Sep 17 00:00:00 2001 From: Yu Watanabe Date: Tue, 19 Dec 2017 11:05:43 +0900 Subject: [PATCH] core,seccomp: fix logic to parse RestrictAddressFamilies= in dbus-execute.c If multiple RestrictAddressFamilies= settings, some of them are whitelist and the others are blacklist, are sent to bus, then parsing result was corrupted. This fixes the parse logic, now it is the same as one used in load-fragment.c --- src/core/dbus-execute.c | 32 ++++++++++++++++++++------------ 1 file changed, 20 insertions(+), 12 deletions(-) diff --git a/src/core/dbus-execute.c b/src/core/dbus-execute.c index a3d601b..4b1160c 100644 --- a/src/core/dbus-execute.c +++ b/src/core/dbus-execute.c @@ -1490,30 +1490,38 @@ int bus_exec_context_set_transient_property( if (!UNIT_WRITE_FLAGS_NOOP(flags)) { _cleanup_free_ char *joined = NULL; + bool invert = !whitelist; + char **s; if (strv_isempty(l)) { c->address_families_whitelist = false; c->address_families = set_free(c->address_families); - } else { - char **s; - c->address_families_whitelist = whitelist; + unit_write_settingf(u, flags, name, "RestrictAddressFamilies="); + return 1; + } - r = set_ensure_allocated(&c->address_families, NULL); - if (r < 0) - return r; + if (!c->address_families) { + c->address_families = set_new(NULL); + if (!c->address_families) + return log_oom(); - STRV_FOREACH(s, l) { - int af; + c->address_families_whitelist = whitelist; + } - af = af_from_name(*s); - if (af <= 0) - return -EINVAL; + STRV_FOREACH(s, l) { + int af; + + af = af_from_name(*s); + if (af <= 0) + return -EINVAL; + if (!invert == c->address_families_whitelist) { r = set_put(c->address_families, INT_TO_PTR(af)); if (r < 0) return r; - } + } else + (void) set_remove(c->address_families, INT_TO_PTR(af)); } joined = strv_join(l, " "); -- 2.7.4