lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Thu, 8 Oct 2020 17:48:00 +0800 From: Xin Long <lucien.xin@...il.com> To: network dev <netdev@...r.kernel.org>, linux-sctp@...r.kernel.org Cc: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>, Neil Horman <nhorman@...driver.com>, Michael Tuexen <tuexen@...muenster.de>, davem@...emloft.net Subject: [PATCHv2 net-next 04/17] udp: support sctp over udp in skb_udp_tunnel_segment To call sctp_gso_segment() properly in skb_udp_tunnel_segment() for sctp over udp packets, we need to set transport_header to sctp header. When skb->ip_summed == CHECKSUM_PARTIAL, skb_crc32c_csum_help() should be called for the inner sctp packet. Cc: Tom Herbert <tom@...bertland.com> Signed-off-by: Xin Long <lucien.xin@...il.com> --- net/ipv4/udp_offload.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c index c0b010b..a484405 100644 --- a/net/ipv4/udp_offload.c +++ b/net/ipv4/udp_offload.c @@ -49,6 +49,7 @@ static struct sk_buff *__skb_udp_tunnel_segment(struct sk_buff *skb, __skb_pull(skb, tnl_hlen); skb_reset_mac_header(skb); skb_set_network_header(skb, skb_inner_network_offset(skb)); + skb_set_transport_header(skb, skb_inner_transport_offset(skb)); skb->mac_len = skb_inner_network_offset(skb); skb->protocol = new_protocol; @@ -131,8 +132,12 @@ static struct sk_buff *__skb_udp_tunnel_segment(struct sk_buff *skb, uh->check = ~csum_fold(csum_add(partial, (__force __wsum)htonl(len))); - if (skb->encapsulation) - skb_checksum_help(skb); + if (skb->encapsulation) { + if (skb->csum_not_inet) + skb_crc32c_csum_help(skb); + else + skb_checksum_help(skb); + } if (offload_csum) { skb->ip_summed = CHECKSUM_PARTIAL; -- 2.1.0
Powered by blists - more mailing lists