[NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETE

[pandora-kernel.git] / net / ipv4 / udp.c

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 223abaa..8715251 100644 (file)
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -91,7 +91,6 @@
 #include <linux/errno.h>
 #include <linux/timer.h>
 #include <linux/mm.h>
-#include <linux/config.h>
 #include <linux/inet.h>
 #include <linux/ipv6.h>
 #include <linux/netdevice.h>
@@ -430,7 +429,7 @@ static int udp_push_pending_frames(struct sock *sk, struct udp_sock *up)
                /*
                 * Only one fragment on the socket.
                 */
-               if (skb->ip_summed == CHECKSUM_HW) {
+               if (skb->ip_summed == CHECKSUM_PARTIAL) {
                        skb->csum = offsetof(struct udphdr, check);
                        uh->check = ~csum_tcpudp_magic(fl->fl4_src, fl->fl4_dst,
                                        up->len, IPPROTO_UDP, 0);
@@ -449,7 +448,7 @@ static int udp_push_pending_frames(struct sock *sk, struct udp_sock *up)
                 * fragments on the socket so that all csums of sk_buffs
                 * should be together.
                 */
-               if (skb->ip_summed == CHECKSUM_HW) {
+               if (skb->ip_summed == CHECKSUM_PARTIAL) {
                        int offset = (unsigned char *)uh - skb->data;
                        skb->csum = skb_checksum(skb, offset, skb->len - offset, 0);
 
@@ -604,6 +603,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
                                    .uli_u = { .ports =
                                               { .sport = inet->sport,
                                                 .dport = dport } } };
+               security_sk_classify_flow(sk, &fl);
                err = ip_route_output_flow(&rt, &fl, sk, !(msg->msg_flags&MSG_DONTWAIT));
                if (err)
                        goto out;
@@ -989,6 +989,7 @@ static int udp_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
                kfree_skb(skb);
                return -1;
        }
+       nf_reset(skb);
 
        if (up->encap_type) {
                /*
@@ -1087,7 +1088,7 @@ static void udp_checksum_init(struct sk_buff *skb, struct udphdr *uh,
 {
        if (uh->check == 0) {
                skb->ip_summed = CHECKSUM_UNNECESSARY;
-       } else if (skb->ip_summed == CHECKSUM_HW) {
+       } else if (skb->ip_summed == CHECKSUM_COMPLETE) {
                if (!udp_check(uh, ulen, saddr, daddr, skb->csum))
                        skb->ip_summed = CHECKSUM_UNNECESSARY;
        }
@@ -1149,6 +1150,7 @@ int udp_rcv(struct sk_buff *skb)
 
        if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
                goto drop;
+       nf_reset(skb);
 
        /* No socket. Drop packet silently, if checksum is wrong */
        if (udp_checksum_complete(skb))
@@ -1205,16 +1207,13 @@ static int udp_destroy_sock(struct sock *sk)
 /*
  *     Socket option code for UDP
  */
-static int udp_setsockopt(struct sock *sk, int level, int optname, 
+static int do_udp_setsockopt(struct sock *sk, int level, int optname,
                          char __user *optval, int optlen)
 {
        struct udp_sock *up = udp_sk(sk);
        int val;
        int err = 0;
 
-       if (level != SOL_UDP)
-               return ip_setsockopt(sk, level, optname, optval, optlen);
-
        if(optlen<sizeof(int))
                return -EINVAL;
 
@@ -1254,15 +1253,30 @@ static int udp_setsockopt(struct sock *sk, int level, int optname,
        return err;
 }
 
-static int udp_getsockopt(struct sock *sk, int level, int optname, 
+static int udp_setsockopt(struct sock *sk, int level, int optname,
+                         char __user *optval, int optlen)
+{
+       if (level != SOL_UDP)
+               return ip_setsockopt(sk, level, optname, optval, optlen);
+       return do_udp_setsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+static int compat_udp_setsockopt(struct sock *sk, int level, int optname,
+                                char __user *optval, int optlen)
+{
+       if (level != SOL_UDP)
+               return compat_ip_setsockopt(sk, level, optname, optval, optlen);
+       return do_udp_setsockopt(sk, level, optname, optval, optlen);
+}
+#endif
+
+static int do_udp_getsockopt(struct sock *sk, int level, int optname,
                          char __user *optval, int __user *optlen)
 {
        struct udp_sock *up = udp_sk(sk);
        int val, len;
 
-       if (level != SOL_UDP)
-               return ip_getsockopt(sk, level, optname, optval, optlen);
-
        if(get_user(len,optlen))
                return -EFAULT;
 
@@ -1291,6 +1305,23 @@ static int udp_getsockopt(struct sock *sk, int level, int optname,
        return 0;
 }
 
+static int udp_getsockopt(struct sock *sk, int level, int optname,
+                         char __user *optval, int __user *optlen)
+{
+       if (level != SOL_UDP)
+               return ip_getsockopt(sk, level, optname, optval, optlen);
+       return do_udp_getsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+static int compat_udp_getsockopt(struct sock *sk, int level, int optname,
+                                char __user *optval, int __user *optlen)
+{
+       if (level != SOL_UDP)
+               return compat_ip_getsockopt(sk, level, optname, optval, optlen);
+       return do_udp_getsockopt(sk, level, optname, optval, optlen);
+}
+#endif
 /**
  *     udp_poll - wait for a UDP event.
  *     @file - file struct
@@ -1339,23 +1370,27 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait)
 }
 
 struct proto udp_prot = {
-       .name =         "UDP",
-       .owner =        THIS_MODULE,
-       .close =        udp_close,
-       .connect =      ip4_datagram_connect,
-       .disconnect =   udp_disconnect,
-       .ioctl =        udp_ioctl,
-       .destroy =      udp_destroy_sock,
-       .setsockopt =   udp_setsockopt,
-       .getsockopt =   udp_getsockopt,
-       .sendmsg =      udp_sendmsg,
-       .recvmsg =      udp_recvmsg,
-       .sendpage =     udp_sendpage,
-       .backlog_rcv =  udp_queue_rcv_skb,
-       .hash =         udp_v4_hash,
-       .unhash =       udp_v4_unhash,
-       .get_port =     udp_v4_get_port,
-       .obj_size =     sizeof(struct udp_sock),
+       .name              = "UDP",
+       .owner             = THIS_MODULE,
+       .close             = udp_close,
+       .connect           = ip4_datagram_connect,
+       .disconnect        = udp_disconnect,
+       .ioctl             = udp_ioctl,
+       .destroy           = udp_destroy_sock,
+       .setsockopt        = udp_setsockopt,
+       .getsockopt        = udp_getsockopt,
+       .sendmsg           = udp_sendmsg,
+       .recvmsg           = udp_recvmsg,
+       .sendpage          = udp_sendpage,
+       .backlog_rcv       = udp_queue_rcv_skb,
+       .hash              = udp_v4_hash,
+       .unhash            = udp_v4_unhash,
+       .get_port          = udp_v4_get_port,
+       .obj_size          = sizeof(struct udp_sock),
+#ifdef CONFIG_COMPAT
+       .compat_setsockopt = compat_udp_setsockopt,
+       .compat_getsockopt = compat_udp_getsockopt,
+#endif
 };
 
 /* ------------------------------------------------------------------------ */
@@ -1434,11 +1469,10 @@ static int udp_seq_open(struct inode *inode, struct file *file)
        struct udp_seq_afinfo *afinfo = PDE(inode)->data;
        struct seq_file *seq;
        int rc = -ENOMEM;
-       struct udp_iter_state *s = kmalloc(sizeof(*s), GFP_KERNEL);
+       struct udp_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
 
        if (!s)
                goto out;
-       memset(s, 0, sizeof(*s));
        s->family               = afinfo->family;
        s->seq_ops.start        = udp_seq_start;
        s->seq_ops.next         = udp_seq_next;