From 56b9406191a15a51320e039df1004967898f304d Mon Sep 17 00:00:00 2001 From: jamal Date: Sun, 25 Feb 2007 12:02:23 -0500 Subject: [PATCH] nl_mgrp to crap if base multicast groups exceeded cheers, jamal [GENERAL] nl_mgrp to crap if base multicast groups exceeded The old scheme of bitmasks works only for the first 32 groups. Above that the setsockopt scheme must be used. Signed-off-by: J Hadi Salim Signed-off-by: Stephen Hemminger --- include/utils.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/include/utils.h b/include/utils.h index 1769ca101..a3fd3356e 100644 --- a/include/utils.h +++ b/include/utils.h @@ -3,6 +3,7 @@ #include #include +#include #include "libnetlink.h" #include "ll_map.h" @@ -129,7 +130,11 @@ static __inline__ int get_user_hz(void) static inline __u32 nl_mgrp(__u32 group) { - return group ? (1 << (group -1)) : 0; + if (group > 31 ) { + fprintf(stderr, "Use setsockopt for this group %d\n", group); + exit(-1); + } + return group ? (1 << (group - 1)) : 0; } -- 2.47.2