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| author | Jakub Kicinski <kuba@kernel.org> | 2024-05-04 01:56:15 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-05-04 01:56:15 +0300 |
| commit | d0de61673908765f4e189fe26f4de6e87caf00e5 (patch) | |
| tree | 4ffd1bfc4ede6ab658d65e0420fc855ae052fb29 /include/linux | |
| parent | f2d859045ec148ba12d26637c1ea50f16828916f (diff) | |
| parent | b6d2e438e16c7d4dbde08cfb2b95b0f3f325ba40 (diff) | |
| download | linux-d0de61673908765f4e189fe26f4de6e87caf00e5.tar.xz | |
Merge tag 'ipsec-2024-05-02' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:
====================
pull request (net): ipsec 2024-05-02
1) Fix an error pointer dereference in xfrm_in_fwd_icmp.
From Antony Antony.
2) Preserve vlan tags for ESP transport mode software GRO.
From Paul Davey.
3) Fix a spelling mistake in an uapi xfrm.h comment.
From Anotny Antony.
* tag 'ipsec-2024-05-02' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec:
xfrm: Correct spelling mistake in xfrm.h comment
xfrm: Preserve vlan tags for transport mode software GRO
xfrm: fix possible derferencing in error path
====================
Link: https://lore.kernel.org/r/20240502084838.2269355-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/skbuff.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 9d24aec064e8..4ff48eda3f64 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -3031,6 +3031,21 @@ static inline void skb_mac_header_rebuild(struct sk_buff *skb) } } +/* Move the full mac header up to current network_header. + * Leaves skb->data pointing at offset skb->mac_len into the mac_header. + * Must be provided the complete mac header length. + */ +static inline void skb_mac_header_rebuild_full(struct sk_buff *skb, u32 full_mac_len) +{ + if (skb_mac_header_was_set(skb)) { + const unsigned char *old_mac = skb_mac_header(skb); + + skb_set_mac_header(skb, -full_mac_len); + memmove(skb_mac_header(skb), old_mac, full_mac_len); + __skb_push(skb, full_mac_len - skb->mac_len); + } +} + static inline int skb_checksum_start_offset(const struct sk_buff *skb) { return skb->csum_start - skb_headroom(skb); |