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当Sapp收到的IP包进行分片重组后，KNI发给TFE的包需重新计算IPv4的校验和

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This commit is contained in:
luwenpeng
2021-11-23 14:56:33 +03:00
parent 5718d879f3
commit 304c818f54
1 changed files with 35 additions and 4 deletions
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39
entry/src/kni_entry.cpp
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@@ -790,12 +790,43 @@ static int send_to_tfe_tun_mode(char *raw_data, uint16_t raw_len, addr_type_t ad
static int send_to_tfe(char *raw_data, uint16_t raw_len, int thread_seq, int tfe_id, addr_type_t addr_type){
int mode = g_kni_handle->deploy_mode;
int ret;
if(mode == KNI_DEPLOY_MODE_TUN){
ret = send_to_tfe_tun_mode(raw_data, raw_len, addr_type);
if (addr_type == ADDR_TYPE_IPV6)
{
if (mode == KNI_DEPLOY_MODE_TUN)
{
ret = send_to_tfe_tun_mode(raw_data, raw_len, addr_type);
}
else
{
ret = send_to_tfe_normal_mode(raw_data, raw_len, thread_seq, tfe_id, addr_type);
}
}
else{
ret = send_to_tfe_normal_mode(raw_data, raw_len, thread_seq, tfe_id, addr_type);
else
{
struct pkt_info pktinfo;
memset(&pktinfo, 0, sizeof(pkt_info));
char *ptr = (char *)malloc(raw_len);
memcpy(ptr, raw_data, raw_len);
kni_ipv4_header_parse((void*)ptr, &pktinfo);
struct iphdr *iphdr = (struct iphdr*)ptr;
iphdr->check = 0;
iphdr->check = kni_ip_checksum((void*)iphdr, pktinfo.iphdr_len);
if (mode == KNI_DEPLOY_MODE_TUN)
{
ret = send_to_tfe_tun_mode(ptr, raw_len, addr_type);
}
else
{
ret = send_to_tfe_normal_mode(ptr, raw_len, thread_seq, tfe_id, addr_type);
}
free(ptr);
ptr = NULL;
}
return ret;
}