gfwleak/tango-tfe
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修正解密流量转发中vlan头部、IPv6头部被覆盖的问题。

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This commit is contained in:
luqiuwen
2019-06-18 18:20:29 +08:00
parent 10ea3ba54e
commit 1a59abcd95
1 changed files with 6 additions and 5 deletions
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11
plugin/business/traffic-mirror/src/rebuild.cpp
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@@ -230,15 +230,16 @@ static int ipv6_header_construct(unsigned char *buf, unsigned short carry_layer_
{
struct ip6_hdr * ip6_hdr = (struct ip6_hdr *) buf;
ip6_hdr->ip6_vfc = ntohl(0x60000000U);
ip6_hdr->ip6_flow = 0;
ip6_hdr->ip6_plen = htons(carry_layer_len);
ip6_hdr->ip6_nxt = protocol;
ip6_hdr->ip6_hlim = 128;
ip6_hdr->ip6_vfc &= 0x0F;
ip6_hdr->ip6_vfc |= (6U << 4U);
ip6_hdr->ip6_src = *src;
ip6_hdr->ip6_dst = *dst;
return sizeof(ip6_hdr);
return sizeof(struct ip6_hdr);
}
static int ip_header_construct_by_stream_addr(struct tfe_stream_addr * addr,
@@ -260,7 +261,7 @@ static int ip_header_construct_by_stream_addr(struct tfe_stream_addr * addr,
return -1;
}
static void ether_header_construct(unsigned char *buf, unsigned char *dst,
static void ether_header_construct_helper(unsigned char *buf, unsigned char *dst,
unsigned char *src, unsigned short type)
{
struct ethhdr * eth_hdr = (struct ethhdr *) buf;
@@ -282,7 +283,7 @@ static int ether_header_construct(struct traffic_mirror_ethdev * ethdev, char *
unsigned int header_len = 0;
unsigned int eth_protocol = vlan_tci > 0 ? ETH_P_8021Q : l3_protocol;
ether_header_construct((unsigned char *)buffer + header_len,
ether_header_construct_helper((unsigned char *)buffer + header_len,
(unsigned char *)target_addr->ether_addr_octet,
(unsigned char *)ethdev->local_ether_addr, eth_protocol);
@@ -291,8 +292,8 @@ static int ether_header_construct(struct traffic_mirror_ethdev * ethdev, char *
/* need to construct vlan header */
if (vlan_tci > 0)
{
header_len += sizeof(struct vlan_hdr);
vlan_tag_construct((unsigned char *)buffer + header_len, vlan_tci, l3_protocol);
header_len += sizeof(struct vlan_hdr);
}
return header_len;