kernel.git/net/ipv4/udp.c, branch linux-2.6.28.y

udp: increments sk_drops in __udp_queue_rcv_skb()

2009-02-17T17:28:57Z

[ Upstream commit e408b8dcb5ce42243a902205005208e590f28454 ] Commit 93821778def10ec1e69aa3ac10adee975dad4ff3 (udp: Fix rcv socket locking) accidentally removed sk_drops increments for UDP IPV4 sockets. This field can be used to detect incorrect sizing of socket receive buffers. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

udp: Fix UDP short packet false positive

2009-02-17T17:28:56Z

[ Upstream commit 7b5e56f9d635643ad54f2f42e69ad16b80a2cff1 ] The UDP header pointer assignment must happen after calling pskb_may_pull(). As pskb_may_pull() can potentially alter the SKB buffer. This was exposted by running multicast traffic through the NIU driver, as it won't prepull the protocol headers into the linear area on receive. Signed-off-by: Jesper Dangaard Brouer Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

TPROXY: fill struct flowi->flags in udp_sendmsg()

2008-11-20T09:07:24Z

udp_sendmsg() didn't fill struct flowi->flags, which means that the route lookup would fail for non-local IPs even if the IP_TRANSPARENT sockopt was set. This prevents sendto() to work properly for UDP sockets, whereas bind(foreign-ip) + connect() + send() worked fine. Signed-off-by: Balazs Scheidler Signed-off-by: David S. Miller

udp: multicast packets need to check namespace

2008-11-02T04:22:23Z

Current UDP multicast delivery is not namespace aware. Signed-off-by: Eric Dumazet Acked-by: Pavel Emelyanov Signed-off-by: David S. Miller

net: Rationalise email address: Network Specific Parts

2008-10-14T02:01:08Z

Clean up the various different email addresses of mine listed in the code to a single current and valid address. As Dave says his network merges for 2.6.28 are now done this seems a good point to send them in where they won't risk disrupting real changes. Signed-off-by: Alan Cox Signed-off-by: David S. Miller

udp: complete port availability checking

2008-10-09T21:51:27Z

While looking at UDP port randomization, I noticed it was litle bit pessimistic, not looking at type of sockets (IPV6/IPV4) and not looking at bound addresses if any. We should perform same tests than when binding to a specific port. This permits a cleanup of udp_lib_get_port() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

udp: Improve port randomization

2008-10-08T18:44:17Z

Current UDP port allocation is suboptimal. We select the shortest chain to chose a port (out of 512) that will hash in this shortest chain. First, it can lead to give not so ramdom ports and ease give attackers more opportunities to break the system. Second, it can consume a lot of CPU to scan all table in order to find the shortest chain. Third, in some pathological cases we can fail to find a free port even if they are plenty of them. This patch zap the search for a short chain and only use one random seed. Problem of getting long chains should be addressed in another way, since we can obtain long chains with non random ports. Based on a report and patch from Vitaly Mayatskikh Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

netns: make udpv6 mib per/namespace

2008-10-07T21:49:36Z

Signed-off-by: Denis V. Lunev Signed-off-by: David S. Miller

inet: Don't lookup the socket if there's a socket attached to the skb

2008-10-07T19:41:01Z

Use the socket cached in the skb if it's present. Signed-off-by: KOVACS Krisztian Acked-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller

inet: Add udplib_lookup_skb() helpers

2008-10-07T19:38:32Z

To be able to use the cached socket reference in the skb during input processing we add a new set of lookup functions that receive the skb on their argument list. Signed-off-by: KOVACS Krisztian Acked-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller