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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 10:37:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 10:37:28 -0700
commitd7e9660ad9d5e0845f52848bce31bcf5cdcdea6b (patch)
treec6c67d145771187b194d79d603742b31090a59d6 /net/ipv6/ip6_output.c
parentb8cb48aae1b8c50b37dcb7710363aa69a7a0d9ca (diff)
parent13af7a6ea502fcdd4c0e3d7de6e332b102309491 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1623 commits) netxen: update copyright netxen: fix tx timeout recovery netxen: fix file firmware leak netxen: improve pci memory access netxen: change firmware write size tg3: Fix return ring size breakage netxen: build fix for INET=n cdc-phonet: autoconfigure Phonet address Phonet: back-end for autoconfigured addresses Phonet: fix netlink address dump error handling ipv6: Add IFA_F_DADFAILED flag net: Add DEVTYPE support for Ethernet based devices mv643xx_eth.c: remove unused txq_set_wrr() ucc_geth: Fix hangs after switching from full to half duplex ucc_geth: Rearrange some code to avoid forward declarations phy/marvell: Make non-aneg speed/duplex forcing work for 88E1111 PHYs drivers/net/phy: introduce missing kfree drivers/net/wan: introduce missing kfree net: force bridge module(s) to be GPL Subject: [PATCH] appletalk: Fix skb leak when ipddp interface is not loaded ... Fixed up trivial conflicts: - arch/x86/include/asm/socket.h converted to <asm-generic/socket.h> in the x86 tree. The generic header has the same new #define's, so that works out fine. - drivers/net/tun.c fix conflict between 89f56d1e9 ("tun: reuse struct sock fields") that switched over to using 'tun->socket.sk' instead of the redundantly available (and thus removed) 'tun->sk', and 2b980dbd ("lsm: Add hooks to the TUN driver") which added a new 'tun->sk' use. Noted in 'next' by Stephen Rothwell.
Diffstat (limited to 'net/ipv6/ip6_output.c')
-rw-r--r--net/ipv6/ip6_output.c44
1 files changed, 15 insertions, 29 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 87f8419a68f..cd48801a8d6 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -57,18 +57,6 @@
static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
-static __inline__ void ipv6_select_ident(struct sk_buff *skb, struct frag_hdr *fhdr)
-{
- static u32 ipv6_fragmentation_id = 1;
- static DEFINE_SPINLOCK(ip6_id_lock);
-
- spin_lock_bh(&ip6_id_lock);
- fhdr->identification = htonl(ipv6_fragmentation_id);
- if (++ipv6_fragmentation_id == 0)
- ipv6_fragmentation_id = 1;
- spin_unlock_bh(&ip6_id_lock);
-}
-
int __ip6_local_out(struct sk_buff *skb)
{
int len;
@@ -206,7 +194,8 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
struct ipv6hdr *hdr;
u8 proto = fl->proto;
int seg_len = skb->len;
- int hlimit, tclass;
+ int hlimit = -1;
+ int tclass = 0;
u32 mtu;
if (opt) {
@@ -249,19 +238,13 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
/*
* Fill in the IPv6 header
*/
-
- hlimit = -1;
- if (np)
+ if (np) {
+ tclass = np->tclass;
hlimit = np->hop_limit;
+ }
if (hlimit < 0)
hlimit = ip6_dst_hoplimit(dst);
- tclass = -1;
- if (np)
- tclass = np->tclass;
- if (tclass < 0)
- tclass = 0;
-
*(__be32 *)hdr = htonl(0x60000000 | (tclass << 20)) | fl->fl6_flowlabel;
hdr->payload_len = htons(seg_len);
@@ -706,7 +689,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
skb_reset_network_header(skb);
memcpy(skb_network_header(skb), tmp_hdr, hlen);
- ipv6_select_ident(skb, fh);
+ ipv6_select_ident(fh);
fh->nexthdr = nexthdr;
fh->reserved = 0;
fh->frag_off = htons(IP6_MF);
@@ -844,7 +827,7 @@ slow_path:
fh->nexthdr = nexthdr;
fh->reserved = 0;
if (!frag_id) {
- ipv6_select_ident(skb, fh);
+ ipv6_select_ident(fh);
frag_id = fh->identification;
} else
fh->identification = frag_id;
@@ -1087,11 +1070,13 @@ static inline int ip6_ufo_append_data(struct sock *sk,
if (!err) {
struct frag_hdr fhdr;
- /* specify the length of each IP datagram fragment*/
- skb_shinfo(skb)->gso_size = mtu - fragheaderlen -
- sizeof(struct frag_hdr);
+ /* Specify the length of each IPv6 datagram fragment.
+ * It has to be a multiple of 8.
+ */
+ skb_shinfo(skb)->gso_size = (mtu - fragheaderlen -
+ sizeof(struct frag_hdr)) & ~7;
skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
- ipv6_select_ident(skb, &fhdr);
+ ipv6_select_ident(&fhdr);
skb_shinfo(skb)->ip6_frag_id = fhdr.identification;
__skb_queue_tail(&sk->sk_write_queue, skb);
@@ -1526,7 +1511,7 @@ int ip6_push_pending_frames(struct sock *sk)
err = ip6_local_out(skb);
if (err) {
if (err > 0)
- err = np->recverr ? net_xmit_errno(err) : 0;
+ err = net_xmit_errno(err);
if (err)
goto error;
}
@@ -1535,6 +1520,7 @@ out:
ip6_cork_release(inet, np);
return err;
error:
+ IP6_INC_STATS(net, rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS);
goto out;
}