IP fragmentation can be performed as expected down the stack, without touching
irrelevant fields in the included header besides fragment offset, setting
IP_MF and header checksum.
If the included header has IP_DF set, EMSGSIZE is returned.
This allows users of IP_HDRINCL to have the kernel perform fragmentation.
Signed-off-by: Yonatan Goldschmidt <dev.jo...@gmail.com>
---
net/ipv4/raw.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 125c1eab3eaa..63167abff05b 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -359,11 +359,6 @@ static int raw_send_hdrinc(struct sock *sk, struct
flowi*,
struct rtable *rt = *rtp;
int hlen, tlen;
- if (length > rt->dst.dev->mtu) {
- ip_local_error(sk, EMSGSIZE, fl4->daddr,
inet->inet_dport,
- rt->dst.dev->mtu);
- return -EMSGSIZE;
- }
if (length < sizeof(struct iphdr))
return -EINVAL;
--
2.15.1
