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-rw-r--r--drivers/net/ethernet/broadcom/bnge/bnge_txrx.c3
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt.c21
-rw-r--r--drivers/net/ethernet/google/gve/gve_tx_dqo.c3
-rw-r--r--drivers/net/ethernet/intel/ice/ice_txrx.c3
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_tx.c42
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_tx.c75
-rw-r--r--drivers/net/ethernet/microsoft/mana/mana_en.c3
-rw-r--r--include/linux/ipv6.h23
-rw-r--r--include/net/ipv6.h79
-rw-r--r--include/net/netfilter/nf_tables_ipv6.h4
-rw-r--r--net/bridge/br_netfilter_ipv6.c2
-rw-r--r--net/bridge/netfilter/nf_conntrack_bridge.c4
-rw-r--r--net/core/dev.c6
-rw-r--r--net/core/gro.c2
-rw-r--r--net/ipv6/ip6_input.c2
-rw-r--r--net/ipv6/ip6_offload.c36
-rw-r--r--net/ipv6/ip6_output.c20
-rw-r--r--net/ipv6/output_core.c7
-rw-r--r--net/netfilter/ipvs/ip_vs_xmit.c2
-rw-r--r--net/netfilter/nf_conntrack_ovs.c2
-rw-r--r--net/netfilter/nf_log_syslog.c2
-rw-r--r--net/sched/sch_cake.c2
22 files changed, 61 insertions, 282 deletions
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_txrx.c b/drivers/net/ethernet/broadcom/bnge/bnge_txrx.c
index de26ef9b5641..a2616f037557 100644
--- a/drivers/net/ethernet/broadcom/bnge/bnge_txrx.c
+++ b/drivers/net/ethernet/broadcom/bnge/bnge_txrx.c
@@ -1463,9 +1463,6 @@ netdev_tx_t bnge_start_xmit(struct sk_buff *skb, struct net_device *dev)
return NETDEV_TX_BUSY;
}
- if (unlikely(ipv6_hopopt_jumbo_remove(skb)))
- goto tx_free;
-
last_frag = skb_shinfo(skb)->nr_frags;
txbd = &txr->tx_desc_ring[TX_RING(bn, prod)][TX_IDX(prod)];
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 466e0fc6141f..7d63d6b0d2c2 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -517,9 +517,6 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev)
return NETDEV_TX_BUSY;
}
- if (unlikely(ipv6_hopopt_jumbo_remove(skb)))
- goto tx_free;
-
length = skb->len;
len = skb_headlen(skb);
last_frag = skb_shinfo(skb)->nr_frags;
@@ -13881,7 +13878,6 @@ static bool bnxt_exthdr_check(struct bnxt *bp, struct sk_buff *skb, int nw_off,
u8 **nextp)
{
struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + nw_off);
- struct hop_jumbo_hdr *jhdr;
int hdr_count = 0;
u8 *nexthdr;
int start;
@@ -13910,24 +13906,7 @@ static bool bnxt_exthdr_check(struct bnxt *bp, struct sk_buff *skb, int nw_off,
if (hdrlen > 64)
return false;
- /* The ext header may be a hop-by-hop header inserted for
- * big TCP purposes. This will be removed before sending
- * from NIC, so do not count it.
- */
- if (*nexthdr == NEXTHDR_HOP) {
- if (likely(skb->len <= GRO_LEGACY_MAX_SIZE))
- goto increment_hdr;
-
- jhdr = (struct hop_jumbo_hdr *)hp;
- if (jhdr->tlv_type != IPV6_TLV_JUMBO || jhdr->hdrlen != 0 ||
- jhdr->nexthdr != IPPROTO_TCP)
- goto increment_hdr;
-
- goto next_hdr;
- }
-increment_hdr:
hdr_count++;
-next_hdr:
nexthdr = &hp->nexthdr;
start += hdrlen;
}
diff --git a/drivers/net/ethernet/google/gve/gve_tx_dqo.c b/drivers/net/ethernet/google/gve/gve_tx_dqo.c
index 40b89b3e5a31..28e85730f785 100644
--- a/drivers/net/ethernet/google/gve/gve_tx_dqo.c
+++ b/drivers/net/ethernet/google/gve/gve_tx_dqo.c
@@ -963,9 +963,6 @@ static int gve_try_tx_skb(struct gve_priv *priv, struct gve_tx_ring *tx,
int num_buffer_descs;
int total_num_descs;
- if (skb_is_gso(skb) && unlikely(ipv6_hopopt_jumbo_remove(skb)))
- goto drop;
-
if (tx->dqo.qpl) {
/* We do not need to verify the number of buffers used per
* packet or per segment in case of TSO as with 2K size buffers
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c
index 396326a6d5be..6fa201a14f51 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -2156,9 +2156,6 @@ ice_xmit_frame_ring(struct sk_buff *skb, struct ice_tx_ring *tx_ring)
ice_trace(xmit_frame_ring, tx_ring, skb);
- if (unlikely(ipv6_hopopt_jumbo_remove(skb)))
- goto out_drop;
-
count = ice_xmit_desc_count(skb);
if (ice_chk_linearize(skb, count)) {
if (__skb_linearize(skb))
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 87f35bcbeff8..c5d564e5a581 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -636,28 +636,20 @@ static int get_real_size(const struct sk_buff *skb,
struct net_device *dev,
int *lso_header_size,
bool *inline_ok,
- void **pfrag,
- int *hopbyhop)
+ void **pfrag)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int real_size;
if (shinfo->gso_size) {
*inline_ok = false;
- *hopbyhop = 0;
if (skb->encapsulation) {
*lso_header_size = skb_inner_tcp_all_headers(skb);
} else {
- /* Detects large IPV6 TCP packets and prepares for removal of
- * HBH header that has been pushed by ip6_xmit(),
- * mainly so that tcpdump can dissect them.
- */
- if (ipv6_has_hopopt_jumbo(skb))
- *hopbyhop = sizeof(struct hop_jumbo_hdr);
*lso_header_size = skb_tcp_all_headers(skb);
}
real_size = CTRL_SIZE + shinfo->nr_frags * DS_SIZE +
- ALIGN(*lso_header_size - *hopbyhop + 4, DS_SIZE);
+ ALIGN(*lso_header_size + 4, DS_SIZE);
if (unlikely(*lso_header_size != skb_headlen(skb))) {
/* We add a segment for the skb linear buffer only if
* it contains data */
@@ -884,7 +876,6 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
int desc_size;
int real_size;
u32 index, bf_index;
- struct ipv6hdr *h6;
__be32 op_own;
int lso_header_size;
void *fragptr = NULL;
@@ -893,7 +884,6 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
bool stop_queue;
bool inline_ok;
u8 data_offset;
- int hopbyhop;
bool bf_ok;
tx_ind = skb_get_queue_mapping(skb);
@@ -903,7 +893,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
goto tx_drop;
real_size = get_real_size(skb, shinfo, dev, &lso_header_size,
- &inline_ok, &fragptr, &hopbyhop);
+ &inline_ok, &fragptr);
if (unlikely(!real_size))
goto tx_drop_count;
@@ -956,7 +946,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
data = &tx_desc->data;
data_offset = offsetof(struct mlx4_en_tx_desc, data);
} else {
- int lso_align = ALIGN(lso_header_size - hopbyhop + 4, DS_SIZE);
+ int lso_align = ALIGN(lso_header_size + 4, DS_SIZE);
data = (void *)&tx_desc->lso + lso_align;
data_offset = offsetof(struct mlx4_en_tx_desc, lso) + lso_align;
@@ -1021,31 +1011,15 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
((ring->prod & ring->size) ?
cpu_to_be32(MLX4_EN_BIT_DESC_OWN) : 0);
- lso_header_size -= hopbyhop;
/* Fill in the LSO prefix */
tx_desc->lso.mss_hdr_size = cpu_to_be32(
shinfo->gso_size << 16 | lso_header_size);
+ /* Copy headers;
+ * note that we already verified that it is linear
+ */
+ memcpy(tx_desc->lso.header, skb->data, lso_header_size);
- if (unlikely(hopbyhop)) {
- /* remove the HBH header.
- * Layout: [Ethernet header][IPv6 header][HBH][TCP header]
- */
- memcpy(tx_desc->lso.header, skb->data, ETH_HLEN + sizeof(*h6));
- h6 = (struct ipv6hdr *)((char *)tx_desc->lso.header + ETH_HLEN);
- h6->nexthdr = IPPROTO_TCP;
- /* Copy the TCP header after the IPv6 one */
- memcpy(h6 + 1,
- skb->data + ETH_HLEN + sizeof(*h6) +
- sizeof(struct hop_jumbo_hdr),
- tcp_hdrlen(skb));
- /* Leave ipv6 payload_len set to 0, as LSO v2 specs request. */
- } else {
- /* Copy headers;
- * note that we already verified that it is linear
- */
- memcpy(tx_desc->lso.header, skb->data, lso_header_size);
- }
ring->tso_packets++;
i = shinfo->gso_segs;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
index a01ee656a1e7..9f0272649fa1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -152,12 +152,11 @@ mlx5e_txwqe_build_eseg_csum(struct mlx5e_txqsq *sq, struct sk_buff *skb,
* to inline later in the transmit descriptor
*/
static inline u16
-mlx5e_tx_get_gso_ihs(struct mlx5e_txqsq *sq, struct sk_buff *skb, int *hopbyhop)
+mlx5e_tx_get_gso_ihs(struct mlx5e_txqsq *sq, struct sk_buff *skb)
{
struct mlx5e_sq_stats *stats = sq->stats;
u16 ihs;
- *hopbyhop = 0;
if (skb->encapsulation) {
if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4)
ihs = skb_inner_transport_offset(skb) +
@@ -167,17 +166,12 @@ mlx5e_tx_get_gso_ihs(struct mlx5e_txqsq *sq, struct sk_buff *skb, int *hopbyhop)
stats->tso_inner_packets++;
stats->tso_inner_bytes += skb->len - ihs;
} else {
- if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) {
+ if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4)
ihs = skb_transport_offset(skb) + sizeof(struct udphdr);
- } else {
+ else
ihs = skb_tcp_all_headers(skb);
- if (ipv6_has_hopopt_jumbo(skb)) {
- *hopbyhop = sizeof(struct hop_jumbo_hdr);
- ihs -= sizeof(struct hop_jumbo_hdr);
- }
- }
stats->tso_packets++;
- stats->tso_bytes += skb->len - ihs - *hopbyhop;
+ stats->tso_bytes += skb->len - ihs;
}
return ihs;
@@ -239,7 +233,6 @@ struct mlx5e_tx_attr {
__be16 mss;
u16 insz;
u8 opcode;
- u8 hopbyhop;
};
struct mlx5e_tx_wqe_attr {
@@ -275,16 +268,14 @@ static void mlx5e_sq_xmit_prepare(struct mlx5e_txqsq *sq, struct sk_buff *skb,
struct mlx5e_sq_stats *stats = sq->stats;
if (skb_is_gso(skb)) {
- int hopbyhop;
- u16 ihs = mlx5e_tx_get_gso_ihs(sq, skb, &hopbyhop);
+ u16 ihs = mlx5e_tx_get_gso_ihs(sq, skb);
*attr = (struct mlx5e_tx_attr) {
.opcode = MLX5_OPCODE_LSO,
.mss = cpu_to_be16(skb_shinfo(skb)->gso_size),
.ihs = ihs,
.num_bytes = skb->len + (skb_shinfo(skb)->gso_segs - 1) * ihs,
- .headlen = skb_headlen(skb) - ihs - hopbyhop,
- .hopbyhop = hopbyhop,
+ .headlen = skb_headlen(skb) - ihs,
};
stats->packets += skb_shinfo(skb)->gso_segs;
@@ -439,7 +430,6 @@ mlx5e_sq_xmit_wqe(struct mlx5e_txqsq *sq, struct sk_buff *skb,
struct mlx5_wqe_data_seg *dseg;
struct mlx5e_tx_wqe_info *wi;
u16 ihs = attr->ihs;
- struct ipv6hdr *h6;
struct mlx5e_sq_stats *stats = sq->stats;
int num_dma;
@@ -456,28 +446,7 @@ mlx5e_sq_xmit_wqe(struct mlx5e_txqsq *sq, struct sk_buff *skb,
if (ihs) {
u8 *start = eseg->inline_hdr.start;
- if (unlikely(attr->hopbyhop)) {
- /* remove the HBH header.
- * Layout: [Ethernet header][IPv6 header][HBH][TCP header]
- */
- if (skb_vlan_tag_present(skb)) {
- mlx5e_insert_vlan(start, skb, ETH_HLEN + sizeof(*h6));
- ihs += VLAN_HLEN;
- h6 = (struct ipv6hdr *)(start + sizeof(struct vlan_ethhdr));
- } else {
- unsafe_memcpy(start, skb->data,
- ETH_HLEN + sizeof(*h6),
- MLX5_UNSAFE_MEMCPY_DISCLAIMER);
- h6 = (struct ipv6hdr *)(start + ETH_HLEN);
- }
- h6->nexthdr = IPPROTO_TCP;
- /* Copy the TCP header after the IPv6 one */
- memcpy(h6 + 1,
- skb->data + ETH_HLEN + sizeof(*h6) +
- sizeof(struct hop_jumbo_hdr),
- tcp_hdrlen(skb));
- /* Leave ipv6 payload_len set to 0, as LSO v2 specs request. */
- } else if (skb_vlan_tag_present(skb)) {
+ if (skb_vlan_tag_present(skb)) {
mlx5e_insert_vlan(start, skb, ihs);
ihs += VLAN_HLEN;
stats->added_vlan_packets++;
@@ -491,7 +460,7 @@ mlx5e_sq_xmit_wqe(struct mlx5e_txqsq *sq, struct sk_buff *skb,
}
dseg += wqe_attr->ds_cnt_ids;
- num_dma = mlx5e_txwqe_build_dsegs(sq, skb, skb->data + attr->ihs + attr->hopbyhop,
+ num_dma = mlx5e_txwqe_build_dsegs(sq, skb, skb->data + attr->ihs,
attr->headlen, dseg);
if (unlikely(num_dma < 0))
goto err_drop;
@@ -1019,34 +988,14 @@ void mlx5i_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
eseg->mss = attr.mss;
if (attr.ihs) {
- if (unlikely(attr.hopbyhop)) {
- struct ipv6hdr *h6;
-
- /* remove the HBH header.
- * Layout: [Ethernet header][IPv6 header][HBH][TCP header]
- */
- unsafe_memcpy(eseg->inline_hdr.start, skb->data,
- ETH_HLEN + sizeof(*h6),
- MLX5_UNSAFE_MEMCPY_DISCLAIMER);
- h6 = (struct ipv6hdr *)((char *)eseg->inline_hdr.start + ETH_HLEN);
- h6->nexthdr = IPPROTO_TCP;
- /* Copy the TCP header after the IPv6 one */
- unsafe_memcpy(h6 + 1,
- skb->data + ETH_HLEN + sizeof(*h6) +
- sizeof(struct hop_jumbo_hdr),
- tcp_hdrlen(skb),
- MLX5_UNSAFE_MEMCPY_DISCLAIMER);
- /* Leave ipv6 payload_len set to 0, as LSO v2 specs request. */
- } else {
- unsafe_memcpy(eseg->inline_hdr.start, skb->data,
- attr.ihs,
- MLX5_UNSAFE_MEMCPY_DISCLAIMER);
- }
+ unsafe_memcpy(eseg->inline_hdr.start, skb->data,
+ attr.ihs,
+ MLX5_UNSAFE_MEMCPY_DISCLAIMER);
eseg->inline_hdr.sz = cpu_to_be16(attr.ihs);
dseg += wqe_attr.ds_cnt_inl;
}
- num_dma = mlx5e_txwqe_build_dsegs(sq, skb, skb->data + attr.ihs + attr.hopbyhop,
+ num_dma = mlx5e_txwqe_build_dsegs(sq, skb, skb->data + attr.ihs,
attr.headlen, dseg);
if (unlikely(num_dma < 0))
goto err_drop;
diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c
index 91c418097284..9b5a72ada5c4 100644
--- a/drivers/net/ethernet/microsoft/mana/mana_en.c
+++ b/drivers/net/ethernet/microsoft/mana/mana_en.c
@@ -355,9 +355,6 @@ netdev_tx_t mana_start_xmit(struct sk_buff *skb, struct net_device *ndev)
if (skb_cow_head(skb, MANA_HEADROOM))
goto tx_drop_count;
- if (unlikely(ipv6_hopopt_jumbo_remove(skb)))
- goto tx_drop_count;
-
txq = &apc->tx_qp[txq_idx].txq;
gdma_sq = txq->gdma_sq;
cq = &apc->tx_qp[txq_idx].tx_cq;
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 20aae8357dd1..bdbd63f9a85e 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -126,6 +126,28 @@ static inline unsigned int ipv6_transport_len(const struct sk_buff *skb)
skb_network_header_len(skb);
}
+static inline unsigned int
+ipv6_payload_len(const struct sk_buff *skb, const struct ipv6hdr *ip6)
+{
+ u32 len = ntohs(ip6->payload_len);
+
+ return (len || !skb_is_gso(skb) || !skb_is_gso_tcp(skb)) ?
+ len :
+ skb->len - skb_network_offset(skb) - sizeof(struct ipv6hdr);
+}
+
+static inline unsigned int skb_ipv6_payload_len(const struct sk_buff *skb)
+{
+ return ipv6_payload_len(skb, ipv6_hdr(skb));
+}
+
+#define IPV6_MAXPLEN 65535
+
+static inline void ipv6_set_payload_len(struct ipv6hdr *ip6, unsigned int len)
+{
+ ip6->payload_len = len <= IPV6_MAXPLEN ? htons(len) : 0;
+}
+
/*
This structure contains results of exthdrs parsing
as offsets from skb->nh.
@@ -155,7 +177,6 @@ struct inet6_skb_parm {
#define IP6SKB_L3SLAVE 64
#define IP6SKB_JUMBOGRAM 128
#define IP6SKB_SEG6 256
-#define IP6SKB_FAKEJUMBO 512
#define IP6SKB_MULTIPATH 1024
#define IP6SKB_MCROUTE 2048
};
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index c27b9d7aeb7c..cc56e09525d0 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -25,8 +25,6 @@ struct ip_tunnel_info;
#define SIN6_LEN_RFC2133 24
-#define IPV6_MAXPLEN 65535
-
/*
* NextHeader field of IPv6 header
*/
@@ -151,17 +149,6 @@ struct frag_hdr {
__be32 identification;
};
-/*
- * Jumbo payload option, as described in RFC 2675 2.
- */
-struct hop_jumbo_hdr {
- u8 nexthdr;
- u8 hdrlen;
- u8 tlv_type; /* IPV6_TLV_JUMBO, 0xC2 */
- u8 tlv_len; /* 4 */
- __be32 jumbo_payload_len;
-};
-
#define IP6_MF 0x0001
#define IP6_OFFSET 0xFFF8
@@ -464,72 +451,6 @@ bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb,
struct ipv6_txoptions *ipv6_update_options(struct sock *sk,
struct ipv6_txoptions *opt);
-/* This helper is specialized for BIG TCP needs.
- * It assumes the hop_jumbo_hdr will immediately follow the IPV6 header.
- * It assumes headers are already in skb->head.
- * Returns: 0, or IPPROTO_TCP if a BIG TCP packet is there.
- */
-static inline int ipv6_has_hopopt_jumbo(const struct sk_buff *skb)
-{
- const struct hop_jumbo_hdr *jhdr;
- const struct ipv6hdr *nhdr;
-
- if (likely(skb->len <= GRO_LEGACY_MAX_SIZE))
- return 0;
-
- if (skb->protocol != htons(ETH_P_IPV6))
- return 0;
-
- if (skb_network_offset(skb) +
- sizeof(struct ipv6hdr) +
- sizeof(struct hop_jumbo_hdr) > skb_headlen(skb))
- return 0;
-
- nhdr = ipv6_hdr(skb);
-
- if (nhdr->nexthdr != NEXTHDR_HOP)
- return 0;
-
- jhdr = (const struct hop_jumbo_hdr *) (nhdr + 1);
- if (jhdr->tlv_type != IPV6_TLV_JUMBO || jhdr->hdrlen != 0 ||
- jhdr->nexthdr != IPPROTO_TCP)
- return 0;
- return jhdr->nexthdr;
-}
-
-/* Return 0 if HBH header is successfully removed
- * Or if HBH removal is unnecessary (packet is not big TCP)
- * Return error to indicate dropping the packet
- */
-static inline int ipv6_hopopt_jumbo_remove(struct sk_buff *skb)
-{
- const int hophdr_len = sizeof(struct hop_jumbo_hdr);
- int nexthdr = ipv6_has_hopopt_jumbo(skb);
- struct ipv6hdr *h6;
-
- if (!nexthdr)
- return 0;
-
- if (skb_cow_head(skb, 0))
- return -1;
-
- /* Remove the HBH header.
- * Layout: [Ethernet header][IPv6 header][HBH][L4 Header]
- */
- memmove(skb_mac_header(skb) + hophdr_len, skb_mac_header(skb),
- skb_network_header(skb) - skb_mac_header(skb) +
- sizeof(struct ipv6hdr));
-
- __skb_pull(skb, hophdr_len);
- skb->network_header += hophdr_len;
- skb->mac_header += hophdr_len;
-
- h6 = ipv6_hdr(skb);
- h6->nexthdr = nexthdr;
-
- return 0;
-}
-
static inline bool ipv6_accept_ra(const struct inet6_dev *idev)
{
s32 accept_ra = READ_ONCE(idev->cnf.accept_ra);
diff --git a/include/net/netfilter/nf_tables_ipv6.h b/include/net/netfilter/nf_tables_ipv6.h
index a0633eeaec97..c53ac00bb974 100644
--- a/include/net/netfilter/nf_tables_ipv6.h
+++ b/include/net/netfilter/nf_tables_ipv6.h
@@ -42,7 +42,7 @@ static inline int __nft_set_pktinfo_ipv6_validate(struct nft_pktinfo *pkt)
if (ip6h->version != 6)
return -1;
- pkt_len = ntohs(ip6h->payload_len);
+ pkt_len = ipv6_payload_len(pkt->skb, ip6h);
skb_len = pkt->skb->len - skb_network_offset(pkt->skb);
if (pkt_len + sizeof(*ip6h) > skb_len)
return -1;
@@ -86,7 +86,7 @@ static inline int nft_set_pktinfo_ipv6_ingress(struct nft_pktinfo *pkt)
if (ip6h->version != 6)
goto inhdr_error;
- pkt_len = ntohs(ip6h->payload_len);
+ pkt_len = ipv6_payload_len(pkt->skb, ip6h);
if (pkt_len + sizeof(*ip6h) > pkt->skb->len) {
idev = __in6_dev_get(nft_in(pkt));
__IP6_INC_STATS(nft_net(pkt), idev, IPSTATS_MIB_INTRUNCATEDPKTS);
diff --git a/net/bridge/br_netfilter_ipv6.c b/net/bridge/br_netfilter_ipv6.c
index e0421eaa3abc..76ce70b4e7f3 100644
--- a/net/bridge/br_netfilter_ipv6.c
+++ b/net/bridge/br_netfilter_ipv6.c
@@ -58,7 +58,7 @@ int br_validate_ipv6(struct net *net, struct sk_buff *skb)
if (hdr->version != 6)
goto inhdr_error;
- pkt_len = ntohs(hdr->payload_len);
+ pkt_len = ipv6_payload_len(skb, hdr);
if (hdr->nexthdr == NEXTHDR_HOP && nf_ip6_check_hbh_len(skb, &pkt_len))
goto drop;
diff --git a/net/bridge/netfilter/nf_conntrack_bridge.c b/net/bridge/netfilter/nf_conntrack_bridge.c
index 3b28b84191be..58a33d0380b0 100644
--- a/net/bridge/netfilter/nf_conntrack_bridge.c
+++ b/net/bridge/netfilter/nf_conntrack_bridge.c
@@ -229,7 +229,7 @@ static int nf_ct_br_ipv6_check(const struct sk_buff *skb)
if (hdr->version != 6)
return -1;
- len = ntohs(hdr->payload_len) + sizeof(struct ipv6hdr) + nhoff;
+ len = ipv6_payload_len(skb, hdr) + sizeof(struct ipv6hdr) + nhoff;
if (skb->len < len)
return -1;
@@ -269,7 +269,7 @@ static unsigned int nf_ct_bridge_pre(void *priv, struct sk_buff *skb,
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
return NF_ACCEPT;
- len = sizeof(struct ipv6hdr) + ntohs(ipv6_hdr(skb)->payload_len);
+ len = sizeof(struct ipv6hdr) + skb_ipv6_payload_len(skb);
if (pskb_trim_rcsum(skb, len))
return NF_ACCEPT;
diff --git a/net/core/dev.c b/net/core/dev.c
index 43de5af0d6ec..ac6bcb2a0784 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3813,8 +3813,7 @@ static netdev_features_t gso_features_check(const struct sk_buff *skb,
(skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4 &&
vlan_get_protocol(skb) == htons(ETH_P_IPV6))) &&
skb_transport_header_was_set(skb) &&
- skb_network_header_len(skb) != sizeof(struct ipv6hdr) &&
- !ipv6_has_hopopt_jumbo(skb))
+ skb_network_header_len(skb) != sizeof(struct ipv6hdr))
features &= ~(NETIF_F_IPV6_CSUM | NETIF_F_TSO6 | NETIF_F_GSO_UDP_L4);
return features;
@@ -3917,8 +3916,7 @@ int skb_csum_hwoffload_help(struct sk_buff *skb,
if (features & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)) {
if (vlan_get_protocol(skb) == htons(ETH_P_IPV6) &&
- skb_network_header_len(skb) != sizeof(struct ipv6hdr) &&
- !ipv6_has_hopopt_jumbo(skb))
+ skb_network_header_len(skb) != sizeof(struct ipv6hdr))
goto sw_checksum;
switch (skb->csum_offset) {
diff --git a/net/core/gro.c b/net/core/gro.c
index ef61695fbdbb..31d21de5b15a 100644
--- a/net/core/gro.c
+++ b/net/core/gro.c
@@ -115,8 +115,6 @@ int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb)
if (unlikely(p->len + len >= GRO_LEGACY_MAX_SIZE)) {
if (NAPI_GRO_CB(skb)->proto != IPPROTO_TCP ||
- (p->protocol == htons(ETH_P_IPV6) &&
- skb_headroom(p) < sizeof(struct hop_jumbo_hdr)) ||
p->encapsulation)
return -E2BIG;
}
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 168ec07e31cc..2bcb981c91aa 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -262,7 +262,7 @@ static struct sk_buff *ip6_rcv_core(struct sk_buff *skb, struct net_device *dev,
skb->transport_header = skb->network_header + sizeof(*hdr);
IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
- pkt_len = ntohs(hdr->payload_len);
+ pkt_len = ipv6_payload_len(skb, hdr);
/* pkt_len may be zero if Jumbo payload option is present */
if (pkt_len || hdr->nexthdr != NEXTHDR_HOP) {
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index 32a104ead876..bd7f780e37a5 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -94,7 +94,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
struct sk_buff *segs = ERR_PTR(-EINVAL);
struct ipv6hdr *ipv6h;
const struct net_offload *ops;
- int proto, err;
+ int proto;
struct frag_hdr *fptr;
unsigned int payload_len;
u8 *prevhdr;
@@ -104,9 +104,6 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
bool gso_partial;
skb_reset_network_header(skb);
- err = ipv6_hopopt_jumbo_remove(skb);
- if (err)
- return ERR_PTR(err);
nhoff = skb_network_header(skb) - skb_mac_header(skb);
if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
goto out;
@@ -336,41 +333,14 @@ INDIRECT_CALLABLE_SCOPE int ipv6_gro_complete(struct sk_buff *skb, int nhoff)
const struct net_offload *ops;
struct ipv6hdr *iph;
int err = -ENOSYS;
- u32 payload_len;
if (skb->encapsulation) {
skb_set_inner_protocol(skb, cpu_to_be16(ETH_P_IPV6));
skb_set_inner_network_header(skb, nhoff);
}
- payload_len = skb->len - nhoff - sizeof(*iph);
- if (unlikely(payload_len > IPV6_MAXPLEN)) {
- struct hop_jumbo_hdr *hop_jumbo;
- int hoplen = sizeof(*hop_jumbo);
-
- /* Move network header left */
- memmove(skb_mac_header(skb) - hoplen, skb_mac_header(skb),
- skb->transport_header - skb->mac_header);
- skb->data -= hoplen;
- skb->len += hoplen;
- skb->mac_header -= hoplen;
- skb->network_header -= hoplen;
- iph = (struct ipv6hdr *)(skb->data + nhoff);
- hop_jumbo = (struct hop_jumbo_hdr *)(iph + 1);
-
- /* Build hop-by-hop options */
- hop_jumbo->nexthdr = iph->nexthdr;
- hop_jumbo->hdrlen = 0;
- hop_jumbo->tlv_type = IPV6_TLV_JUMBO;
- hop_jumbo->tlv_len = 4;
- hop_jumbo->jumbo_payload_len = htonl(payload_len + hoplen);
-
- iph->nexthdr = NEXTHDR_HOP;
- iph->payload_len = 0;
- } else {
- iph = (struct ipv6hdr *)(skb->data + nhoff);
- iph->payload_len = htons(payload_len);
- }
+ iph = (struct ipv6hdr *)(skb->data + nhoff);
+ ipv6_set_payload_len(iph, skb->len - nhoff - sizeof(*iph));
nhoff += sizeof(*iph) + ipv6_exthdrs_len(iph, &ops);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index e622a9e086cc..769c39fed1f3 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -179,8 +179,7 @@ ip6_finish_output_gso_slowpath_drop(struct net *net, struct sock *sk,
static int ip6_finish_output_gso(struct net *net, struct sock *sk,
struct sk_buff *skb, unsigned int mtu)
{
- if (unlikely(!(IP6CB(skb)->flags & IP6SKB_FAKEJUMBO) &&
- !skb_gso_validate_network_len(skb, mtu)))
+ if (unlikely(!skb_gso_validate_network_len(skb, mtu)))
return ip6_finish_output_gso_slowpath_drop(net, sk, skb, mtu);
return ip6_finish_output2(net, sk, skb);
@@ -273,8 +272,6 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
struct in6_addr *first_hop = &fl6->daddr;
struct dst_entry *dst = skb_dst(skb);
struct inet6_dev *idev = ip6_dst_idev(dst);
- struct hop_jumbo_hdr *hop_jumbo;
- int hoplen = sizeof(*hop_jumbo);
struct net *net = sock_net(sk);
unsigned int head_room;
struct net_device *dev;
@@ -287,7 +284,7 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
rcu_read_lock();
dev = dst_dev_rcu(dst);
- head_room = sizeof(struct ipv6hdr) + hoplen + LL_RESERVED_SPACE(dev);
+ head_room = sizeof(struct ipv6hdr) + LL_RESERVED_SPACE(dev);
if (opt)
head_room += opt->opt_nflen + opt->opt_flen;
@@ -313,19 +310,8 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
&fl6->saddr);
}
- if (unlikely(seg_len > IPV6_MAXPLEN)) {
- hop_jumbo = __skb_push(skb, hoplen);
-
- hop_jumbo->nexthdr = proto;
- hop_jumbo->hdrlen = 0;
- hop_jumbo->tlv_type = IPV6_TLV_JUMBO;
- hop_jumbo->tlv_len = 4;
- hop_jumbo->jumbo_payload_len = htonl(seg_len + hoplen);
-
- proto = IPPROTO_HOPOPTS;
+ if (unlikely(seg_len > IPV6_MAXPLEN))
seg_len = 0;
- IP6CB(skb)->flags |= IP6SKB_FAKEJUMBO;
- }
__skb_push(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
index 1c9b283a4132..cba1684a3f30 100644
--- a/net/ipv6/output_core.c
+++ b/net/ipv6/output_core.c
@@ -125,12 +125,7 @@ EXPORT_SYMBOL(ip6_dst_hoplimit);
int __ip6_local_out(struct net *net, struct sock *sk, struct sk_buff *skb)
{
- int len;
-
- len = skb->len - sizeof(struct ipv6hdr);
- if (len > IPV6_MAXPLEN)
- len = 0;
- ipv6_hdr(skb)->payload_len = htons(len);
+ ipv6_set_payload_len(ipv6_hdr(skb), skb->len - sizeof(struct ipv6hdr));
IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
/* if egress device is enslaved to an L3 master device pass the
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index 64c697212578..f861d116cc33 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -949,7 +949,7 @@ ip_vs_prepare_tunneled_skb(struct sk_buff *skb, int skb_af,
*next_protocol = IPPROTO_IPV6;
if (payload_len)
*payload_len =
- ntohs(old_ipv6h->payload_len) +
+ ipv6_payload_len(skb, old_ipv6h) +
sizeof(*old_ipv6h);
old_dsfield = ipv6_get_dsfield(old_ipv6h);
*ttl = old_ipv6h->hop_limit;
diff --git a/net/netfilter/nf_conntrack_ovs.c b/net/netfilter/nf_conntrack_ovs.c
index 068e9489e1c2..a6988eeb1579 100644
--- a/net/netfilter/nf_conntrack_ovs.c
+++ b/net/netfilter/nf_conntrack_ovs.c
@@ -121,7 +121,7 @@ int nf_ct_skb_network_trim(struct sk_buff *skb, int family)
len = skb_ip_totlen(skb);
break;
case NFPROTO_IPV6:
- len = ntohs(ipv6_hdr(skb)->payload_len);
+ len = skb_ipv6_payload_len(skb);
if (ipv6_hdr(skb)->nexthdr == NEXTHDR_HOP) {
int err = nf_ip6_check_hbh_len(skb, &len);
diff --git a/net/netfilter/nf_log_syslog.c b/net/netfilter/nf_log_syslog.c
index 86d5fc5d28e3..41503847d9d7 100644
--- a/net/netfilter/nf_log_syslog.c
+++ b/net/netfilter/nf_log_syslog.c
@@ -561,7 +561,7 @@ dump_ipv6_packet(struct net *net, struct nf_log_buf *m,
/* Max length: 44 "LEN=65535 TC=255 HOPLIMIT=255 FLOWLBL=FFFFF " */
nf_log_buf_add(m, "LEN=%zu TC=%u HOPLIMIT=%u FLOWLBL=%u ",
- ntohs(ih->payload_len) + sizeof(struct ipv6hdr),
+ ipv6_payload_len(skb, ih) + sizeof(struct ipv6hdr),
(ntohl(*(__be32 *)ih) & 0x0ff00000) >> 20,
ih->hop_limit,
(ntohl(*(__be32 *)ih) & 0x000fffff));
diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index fd56b7d88301..d2bbd5654d5b 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -1279,7 +1279,7 @@ static struct sk_buff *cake_ack_filter(struct cake_sched_data *q,
ipv6_addr_cmp(&ipv6h_check->daddr, &ipv6h->daddr))
continue;
- seglen = ntohs(ipv6h_check->payload_len);
+ seglen = ipv6_payload_len(skb, ipv6h_check);
} else {
WARN_ON(1); /* shouldn't happen */
continue;
generated by cgit v1.2.3 (git 2.0.4) at 2026-09-18 21:37:53 +0000