Function report |
Source Code:include\net\inet_ecn.h |
Create Date:2022-07-28 06:42:22 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:Note:* IP_ECN_set_ce() has to tweak IPV4 checksum when setting CE,* meaning both changes have no effect on skb->csum if/when CHECKSUM_COMPLETE* In IPv6 case, no checksum compensates the change in IPv6 header,* so we have to update skb->csum.
Proto:static inline int IP6_ECN_set_ce(struct sk_buff *skb, struct ipv6hdr *iph)
Type:int
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct sk_buff * | skb | |
| struct ipv6hdr * | iph |
| 125 | If INET_ECN_is_not_ect(ipv6_get_dsfield(iph)) Then Return 0 |
| 129 | to = from | htonl(INET_ECN_CE << 20) |
| 131 | If ip_summed == This is the most generic way Then csum = csum_add(csum_sub(csum, (__force__wsum)from), (__force__wsum)to) |
| 134 | Return 1 |
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