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Date: Sun, 27 Jan 2013 22:45:18 -0500 From: Richard Guy Briggs <rbriggs@...hat.com> To: linux-kernel@...r.kernel.org Cc: Richard Guy Briggs <rgb@...hat.com>, Richard Guy Briggs <rbriggs@...hat.com> Subject: [PATCH 6/6] audit: send multicast messages only if there are listeners From: Richard Guy Briggs <rgb@...hat.com> Test first to see if there are any userspace multicast listeners bound to the socket before starting the multicast send work. Signed-off-by: Richard Guy Briggs <rbriggs@...hat.com> --- kernel/audit.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/audit.c b/kernel/audit.c index 9eef05b..d153a6b 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -428,6 +428,8 @@ static void kauditd_send_multicast_skb(struct sk_buff *skb) struct sk_buff *copy; struct nlmsghdr *nlh; + if (!netlink_has_listeners(audit_sock, AUDIT_NLGRP_READLOG)) + return; /* * The seemingly wasteful skb_copy() is necessary because the original * kaudit unicast socket sends up messages with nlmsg_len set to the -- 1.8.0.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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