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authorIngo Molnar <mingo@elte.hu>2009-06-01 21:06:21 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-01 21:06:21 +0200
commit3d58f48ba05caed9118bce62b3047f8683438835 (patch)
tree94c911034f0e14ded73d3e9e6e9f8e22b6cad822 /net/ipv4/ipconfig.c
parentabfe0af9813153bae8c85d9bac966bafcb8ddab1 (diff)
parentd9244b5d2fbfe9fa540024b410047af13ceec90f (diff)
downloadlinux-3d58f48ba05caed9118bce62b3047f8683438835.tar.gz
Merge branch 'linus' into irq/numa
Conflicts: arch/mips/sibyte/bcm1480/irq.c arch/mips/sibyte/sb1250/irq.c Merge reason: we gathered a few conflicts plus update to latest upstream fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'net/ipv4/ipconfig.c')
-rw-r--r--net/ipv4/ipconfig.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 90d22ae0a419..88bf051d0cbb 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -139,6 +139,8 @@ __be32 ic_servaddr = NONE; /* Boot server IP address */
__be32 root_server_addr = NONE; /* Address of NFS server */
u8 root_server_path[256] = { 0, }; /* Path to mount as root */
+u32 ic_dev_xid; /* Device under configuration */
+
/* vendor class identifier */
static char vendor_class_identifier[253] __initdata;
@@ -932,6 +934,13 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str
goto drop_unlock;
}
+ /* Is it a reply for the device we are configuring? */
+ if (b->xid != ic_dev_xid) {
+ if (net_ratelimit())
+ printk(KERN_ERR "DHCP/BOOTP: Ignoring delayed packet \n");
+ goto drop_unlock;
+ }
+
/* Parse extensions */
if (ext_len >= 4 &&
!memcmp(b->exten, ic_bootp_cookie, 4)) { /* Check magic cookie */
@@ -1115,6 +1124,9 @@ static int __init ic_dynamic(void)
get_random_bytes(&timeout, sizeof(timeout));
timeout = CONF_BASE_TIMEOUT + (timeout % (unsigned) CONF_TIMEOUT_RANDOM);
for (;;) {
+ /* Track the device we are configuring */
+ ic_dev_xid = d->xid;
+
#ifdef IPCONFIG_BOOTP
if (do_bootp && (d->able & IC_BOOTP))
ic_bootp_send_if(d, jiffies - start_jiffies);