diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/610-v5.13-22-netfilter-flowtable-add-pppoe-support.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/610-v5.13-22-netfilter-flowtable-add-pppoe-support.patch | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/target/linux/generic/backport-5.10/610-v5.13-22-netfilter-flowtable-add-pppoe-support.patch b/target/linux/generic/backport-5.10/610-v5.13-22-netfilter-flowtable-add-pppoe-support.patch deleted file mode 100644 index d5789cbad2..0000000000 --- a/target/linux/generic/backport-5.10/610-v5.13-22-netfilter-flowtable-add-pppoe-support.patch +++ /dev/null @@ -1,145 +0,0 @@ -From: Pablo Neira Ayuso <pablo@netfilter.org> -Date: Wed, 24 Mar 2021 02:30:43 +0100 -Subject: [PATCH] netfilter: flowtable: add pppoe support - -Add the PPPoE protocol and session id to the flow tuple using the encap -fields to uniquely identify flows from the receive path. For the -transmit path, dev_hard_header() on the vlan device push the headers. - -Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> ---- - ---- a/net/netfilter/nf_flow_table_ip.c -+++ b/net/netfilter/nf_flow_table_ip.c -@@ -7,6 +7,9 @@ - #include <linux/ip.h> - #include <linux/ipv6.h> - #include <linux/netdevice.h> -+#include <linux/if_ether.h> -+#include <linux/if_pppox.h> -+#include <linux/ppp_defs.h> - #include <net/ip.h> - #include <net/ipv6.h> - #include <net/ip6_route.h> -@@ -139,6 +142,8 @@ static bool ip_has_options(unsigned int - static void nf_flow_tuple_encap(struct sk_buff *skb, - struct flow_offload_tuple *tuple) - { -+ struct vlan_ethhdr *veth; -+ struct pppoe_hdr *phdr; - int i = 0; - - if (skb_vlan_tag_present(skb)) { -@@ -146,11 +151,17 @@ static void nf_flow_tuple_encap(struct s - tuple->encap[i].proto = skb->vlan_proto; - i++; - } -- if (skb->protocol == htons(ETH_P_8021Q)) { -- struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb); -- -+ switch (skb->protocol) { -+ case htons(ETH_P_8021Q): -+ veth = (struct vlan_ethhdr *)skb_mac_header(skb); - tuple->encap[i].id = ntohs(veth->h_vlan_TCI); - tuple->encap[i].proto = skb->protocol; -+ break; -+ case htons(ETH_P_PPP_SES): -+ phdr = (struct pppoe_hdr *)skb_mac_header(skb); -+ tuple->encap[i].id = ntohs(phdr->sid); -+ tuple->encap[i].proto = skb->protocol; -+ break; - } - } - -@@ -228,17 +239,41 @@ static unsigned int nf_flow_xmit_xfrm(st - return NF_STOLEN; - } - -+static inline __be16 nf_flow_pppoe_proto(const struct sk_buff *skb) -+{ -+ __be16 proto; -+ -+ proto = *((__be16 *)(skb_mac_header(skb) + ETH_HLEN + -+ sizeof(struct pppoe_hdr))); -+ switch (proto) { -+ case htons(PPP_IP): -+ return htons(ETH_P_IP); -+ case htons(PPP_IPV6): -+ return htons(ETH_P_IPV6); -+ } -+ -+ return 0; -+} -+ - static bool nf_flow_skb_encap_protocol(const struct sk_buff *skb, __be16 proto, - u32 *offset) - { -- if (skb->protocol == htons(ETH_P_8021Q)) { -- struct vlan_ethhdr *veth; -+ struct vlan_ethhdr *veth; - -+ switch (skb->protocol) { -+ case htons(ETH_P_8021Q): - veth = (struct vlan_ethhdr *)skb_mac_header(skb); - if (veth->h_vlan_encapsulated_proto == proto) { - *offset += VLAN_HLEN; - return true; - } -+ break; -+ case htons(ETH_P_PPP_SES): -+ if (nf_flow_pppoe_proto(skb) == proto) { -+ *offset += PPPOE_SES_HLEN; -+ return true; -+ } -+ break; - } - - return false; -@@ -255,12 +290,18 @@ static void nf_flow_encap_pop(struct sk_ - __vlan_hwaccel_clear_tag(skb); - continue; - } -- if (skb->protocol == htons(ETH_P_8021Q)) { -+ switch (skb->protocol) { -+ case htons(ETH_P_8021Q): - vlan_hdr = (struct vlan_hdr *)skb->data; - __skb_pull(skb, VLAN_HLEN); - vlan_set_encap_proto(skb, vlan_hdr); - skb_reset_network_header(skb); - break; -+ case htons(ETH_P_PPP_SES): -+ skb->protocol = nf_flow_pppoe_proto(skb); -+ skb_pull(skb, PPPOE_SES_HLEN); -+ skb_reset_network_header(skb); -+ break; - } - } - } ---- a/net/netfilter/nft_flow_offload.c -+++ b/net/netfilter/nft_flow_offload.c -@@ -90,6 +90,7 @@ static void nft_dev_path_info(const stru - switch (path->type) { - case DEV_PATH_ETHERNET: - case DEV_PATH_VLAN: -+ case DEV_PATH_PPPOE: - info->indev = path->dev; - if (is_zero_ether_addr(info->h_source)) - memcpy(info->h_source, path->dev->dev_addr, ETH_ALEN); -@@ -97,7 +98,7 @@ static void nft_dev_path_info(const stru - if (path->type == DEV_PATH_ETHERNET) - break; - -- /* DEV_PATH_VLAN */ -+ /* DEV_PATH_VLAN and DEV_PATH_PPPOE */ - if (info->num_encaps >= NF_FLOW_TABLE_ENCAP_MAX) { - info->indev = NULL; - break; -@@ -106,6 +107,8 @@ static void nft_dev_path_info(const stru - info->encap[info->num_encaps].id = path->encap.id; - info->encap[info->num_encaps].proto = path->encap.proto; - info->num_encaps++; -+ if (path->type == DEV_PATH_PPPOE) -+ memcpy(info->h_dest, path->encap.h_dest, ETH_ALEN); - break; - case DEV_PATH_BRIDGE: - if (is_zero_ether_addr(info->h_source)) |