From 87a7b84b588c2ddbde890890855aef18ec34174e Mon Sep 17 00:00:00 2001 From: Veaceslav Falico Date: Mon, 24 Jun 2013 11:49:29 +0200 Subject: bonding: add helper function bond_get_targets_ip(targets, ip) Add function bond_get_targets_ip(targets, ip) which searches through targets array of ips (arp_targets) and returns the position of first match. If ip == 0, returns the first free slot. On failure to find the ip or free slot, return -1. Use it to verify if the arp we've received is valid and in sysfs. v1->v2: Fix "[2/6] bonding: add helper function bond_get_targets_ip(targets, ip)", per Nikolay's advice, to verify if source ip != 0.0.0.0, otherwise we might update 'null' arp_ip_targets' last_rx. Also, address style. Signed-off-by: Veaceslav Falico Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) (limited to 'drivers/net/bonding/bond_main.c') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 3b31c19972d4..976d28e3498a 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -2610,19 +2610,16 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave) static void bond_validate_arp(struct bonding *bond, struct slave *slave, __be32 sip, __be32 tip) { - int i; - __be32 *targets = bond->params.arp_targets; + if (!sip || !bond_has_this_ip(bond, tip)) { + pr_debug("bva: sip %pI4 tip %pI4 not found\n", &sip, &tip); + return; + } - for (i = 0; (i < BOND_MAX_ARP_TARGETS) && targets[i]; i++) { - pr_debug("bva: sip %pI4 tip %pI4 t[%d] %pI4 bhti(tip) %d\n", - &sip, &tip, i, &targets[i], - bond_has_this_ip(bond, tip)); - if (sip == targets[i]) { - if (bond_has_this_ip(bond, tip)) - slave->last_arp_rx = jiffies; - return; - } + if (bond_get_targets_ip(bond->params.arp_targets, sip) == -1) { + pr_debug("bva: sip %pI4 not found in targets\n", &sip); + return; } + slave->last_arp_rx = jiffies; } static int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, @@ -4839,7 +4836,7 @@ static int __net_init bond_net_init(struct net *net) bond_create_proc_dir(bn); bond_create_sysfs(bn); - + return 0; } -- cgit v1.2.3