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[NET] gso: Fix up GSO packets with broken checksums

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Certain subsystems in the stack (e.g., netfilter) can break the partial
checksum on GSO packets.  Until they're fixed, this patch allows this to
work by recomputing the partial checksums through the GSO mechanism.

Once they've all been converted to update the partial checksum instead of
clearing it, this workaround can be removed.

Signed-off-by: Herbert Xu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Herbert Xu 2006-07-08 13:34:56 -07:00 • committed by David S. Miller
commit a430a43d08
8 changed files with 174 additions and 35 deletions
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2
include/net/protocol.h
View file

@ -36,6 +36,7 @@
struct net_protocol {
int (*handler)(struct sk_buff *skb);
void (*err_handler)(struct sk_buff *skb, u32 info);
int (*gso_send_check)(struct sk_buff *skb);
struct sk_buff *(*gso_segment)(struct sk_buff *skb,
int features);
int no_policy;
@ -51,6 +52,7 @@ struct inet6_protocol
int type, int code, int offset,
__u32 info);
int (*gso_send_check)(struct sk_buff *skb);
struct sk_buff *(*gso_segment)(struct sk_buff *skb,
int features);

1
include/net/tcp.h
View file

@ -1086,6 +1086,7 @@ extern struct request_sock_ops tcp_request_sock_ops;
extern int tcp_v4_destroy_sock(struct sock *sk);
extern int tcp_v4_gso_send_check(struct sk_buff *skb);
extern struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features);
#ifdef CONFIG_PROC_FS