[lib] more selective mask to catch uevent from netlink

Kay Sievers reports 0x01 is the only group used by the kernel.
As udev will start using other groups, pollution will result from
our lack of filtering.

diff --git a/libmultipath/uevent.c b/libmultipath/uevent.c
index 99757fe..e18ec25 100644 (file)
--- a/libmultipath/uevent.c
+++ b/libmultipath/uevent.c
@@ -165,7 +165,7 @@ int uevent_listen(int (*uev_trigger)(struct uevent *, void * trigger_data),
                memset(&snl, 0x00, sizeof(struct sockaddr_nl));
                snl.nl_family = AF_NETLINK;
                snl.nl_pid = getpid();
-               snl.nl_groups = 0xffffffff;
+               snl.nl_groups = 0x01;
 
                sock = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT);
                if (sock == -1) {