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-rw-r--r--include/net/netns/xfrm.h4
-rw-r--r--include/net/xfrm.h4
-rw-r--r--net/ipv4/ah4.c2
-rw-r--r--net/ipv4/esp4.c2
-rw-r--r--net/ipv4/esp4_offload.c17
-rw-r--r--net/ipv4/ip_vti.c6
-rw-r--r--net/ipv6/ah6.c2
-rw-r--r--net/ipv6/esp6.c2
-rw-r--r--net/ipv6/esp6_offload.c17
-rw-r--r--net/ipv6/ip6_vti.c6
-rw-r--r--net/xfrm/xfrm_compat.c12
-rw-r--r--net/xfrm/xfrm_device.c2
-rw-r--r--net/xfrm/xfrm_interface.c3
-rw-r--r--net/xfrm/xfrm_output.c23
-rw-r--r--net/xfrm/xfrm_state.c11
15 files changed, 81 insertions, 32 deletions
diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
index 59f45b1e9dac..e816b6a3ef2b 100644
--- a/include/net/netns/xfrm.h
+++ b/include/net/netns/xfrm.h
@@ -72,7 +72,9 @@ struct netns_xfrm {
#if IS_ENABLED(CONFIG_IPV6)
struct dst_ops xfrm6_dst_ops;
#endif
- spinlock_t xfrm_state_lock;
+ spinlock_t xfrm_state_lock;
+ seqcount_spinlock_t xfrm_state_hash_generation;
+
spinlock_t xfrm_policy_lock;
struct mutex xfrm_cfg_mutex;
};
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index b2a06f10b62c..c58a6d4eb610 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1097,7 +1097,7 @@ static inline int __xfrm_policy_check2(struct sock *sk, int dir,
return __xfrm_policy_check(sk, ndir, skb, family);
return (!net->xfrm.policy_count[dir] && !secpath_exists(skb)) ||
- (skb_dst(skb)->flags & DST_NOPOLICY) ||
+ (skb_dst(skb) && (skb_dst(skb)->flags & DST_NOPOLICY)) ||
__xfrm_policy_check(sk, ndir, skb, family);
}
@@ -1557,7 +1557,7 @@ int xfrm_trans_queue_net(struct net *net, struct sk_buff *skb,
int xfrm_trans_queue(struct sk_buff *skb,
int (*finish)(struct net *, struct sock *,
struct sk_buff *));
-int xfrm_output_resume(struct sk_buff *skb, int err);
+int xfrm_output_resume(struct sock *sk, struct sk_buff *skb, int err);
int xfrm_output(struct sock *sk, struct sk_buff *skb);
#if IS_ENABLED(CONFIG_NET_PKTGEN)
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index d99e1be94019..36ed85bf2ad5 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -141,7 +141,7 @@ static void ah_output_done(struct crypto_async_request *base, int err)
}
kfree(AH_SKB_CB(skb)->tmp);
- xfrm_output_resume(skb, err);
+ xfrm_output_resume(skb->sk, skb, err);
}
static int ah_output(struct xfrm_state *x, struct sk_buff *skb)
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index a3271ec3e162..4b834bbf95e0 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -279,7 +279,7 @@ static void esp_output_done(struct crypto_async_request *base, int err)
x->encap && x->encap->encap_type == TCP_ENCAP_ESPINTCP)
esp_output_tail_tcp(x, skb);
else
- xfrm_output_resume(skb, err);
+ xfrm_output_resume(skb->sk, skb, err);
}
}
diff --git a/net/ipv4/esp4_offload.c b/net/ipv4/esp4_offload.c
index 601f5fbfc63f..33687cf58286 100644
--- a/net/ipv4/esp4_offload.c
+++ b/net/ipv4/esp4_offload.c
@@ -217,10 +217,12 @@ static struct sk_buff *esp4_gso_segment(struct sk_buff *skb,
if ((!(skb->dev->gso_partial_features & NETIF_F_HW_ESP) &&
!(features & NETIF_F_HW_ESP)) || x->xso.dev != skb->dev)
- esp_features = features & ~(NETIF_F_SG | NETIF_F_CSUM_MASK);
+ esp_features = features & ~(NETIF_F_SG | NETIF_F_CSUM_MASK |
+ NETIF_F_SCTP_CRC);
else if (!(features & NETIF_F_HW_ESP_TX_CSUM) &&
!(skb->dev->gso_partial_features & NETIF_F_HW_ESP_TX_CSUM))
- esp_features = features & ~NETIF_F_CSUM_MASK;
+ esp_features = features & ~(NETIF_F_CSUM_MASK |
+ NETIF_F_SCTP_CRC);
xo->flags |= XFRM_GSO_SEGMENT;
@@ -312,8 +314,17 @@ static int esp_xmit(struct xfrm_state *x, struct sk_buff *skb, netdev_features_
ip_hdr(skb)->tot_len = htons(skb->len);
ip_send_check(ip_hdr(skb));
- if (hw_offload)
+ if (hw_offload) {
+ if (!skb_ext_add(skb, SKB_EXT_SEC_PATH))
+ return -ENOMEM;
+
+ xo = xfrm_offload(skb);
+ if (!xo)
+ return -EINVAL;
+
+ xo->flags |= XFRM_XMIT;
return 0;
+ }
err = esp_output_tail(x, skb, &esp);
if (err)
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index eb207089ece0..31c6c6d99d5e 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -218,7 +218,7 @@ static netdev_tx_t vti_xmit(struct sk_buff *skb, struct net_device *dev,
}
if (dst->flags & DST_XFRM_QUEUE)
- goto queued;
+ goto xmit;
if (!vti_state_check(dst->xfrm, parms->iph.daddr, parms->iph.saddr)) {
dev->stats.tx_carrier_errors++;
@@ -238,6 +238,8 @@ static netdev_tx_t vti_xmit(struct sk_buff *skb, struct net_device *dev,
if (skb->len > mtu) {
skb_dst_update_pmtu_no_confirm(skb, mtu);
if (skb->protocol == htons(ETH_P_IP)) {
+ if (!(ip_hdr(skb)->frag_off & htons(IP_DF)))
+ goto xmit;
icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
htonl(mtu));
} else {
@@ -251,7 +253,7 @@ static netdev_tx_t vti_xmit(struct sk_buff *skb, struct net_device *dev,
goto tx_error;
}
-queued:
+xmit:
skb_scrub_packet(skb, !net_eq(tunnel->net, dev_net(dev)));
skb_dst_set(skb, dst);
skb->dev = skb_dst(skb)->dev;
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 440080da805b..080ee7f44c64 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -316,7 +316,7 @@ static void ah6_output_done(struct crypto_async_request *base, int err)
}
kfree(AH_SKB_CB(skb)->tmp);
- xfrm_output_resume(skb, err);
+ xfrm_output_resume(skb->sk, skb, err);
}
static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 153ad103ba74..727d791ed5e6 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -314,7 +314,7 @@ static void esp_output_done(struct crypto_async_request *base, int err)
x->encap && x->encap->encap_type == TCP_ENCAP_ESPINTCP)
esp_output_tail_tcp(x, skb);
else
- xfrm_output_resume(skb, err);
+ xfrm_output_resume(skb->sk, skb, err);
}
}
diff --git a/net/ipv6/esp6_offload.c b/net/ipv6/esp6_offload.c
index 1ca516fb30e1..4af56affaafd 100644
--- a/net/ipv6/esp6_offload.c
+++ b/net/ipv6/esp6_offload.c
@@ -254,9 +254,11 @@ static struct sk_buff *esp6_gso_segment(struct sk_buff *skb,
skb->encap_hdr_csum = 1;
if (!(features & NETIF_F_HW_ESP) || x->xso.dev != skb->dev)
- esp_features = features & ~(NETIF_F_SG | NETIF_F_CSUM_MASK);
+ esp_features = features & ~(NETIF_F_SG | NETIF_F_CSUM_MASK |
+ NETIF_F_SCTP_CRC);
else if (!(features & NETIF_F_HW_ESP_TX_CSUM))
- esp_features = features & ~NETIF_F_CSUM_MASK;
+ esp_features = features & ~(NETIF_F_CSUM_MASK |
+ NETIF_F_SCTP_CRC);
xo->flags |= XFRM_GSO_SEGMENT;
@@ -346,8 +348,17 @@ static int esp6_xmit(struct xfrm_state *x, struct sk_buff *skb, netdev_features
ipv6_hdr(skb)->payload_len = htons(len);
- if (hw_offload)
+ if (hw_offload) {
+ if (!skb_ext_add(skb, SKB_EXT_SEC_PATH))
+ return -ENOMEM;
+
+ xo = xfrm_offload(skb);
+ if (!xo)
+ return -EINVAL;
+
+ xo->flags |= XFRM_XMIT;
return 0;
+ }
err = esp6_output_tail(x, skb, &esp);
if (err)
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index f10e7a72ea62..e0cc32e45880 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -494,7 +494,7 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
}
if (dst->flags & DST_XFRM_QUEUE)
- goto queued;
+ goto xmit;
x = dst->xfrm;
if (!vti6_state_check(x, &t->parms.raddr, &t->parms.laddr))
@@ -523,6 +523,8 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
icmpv6_ndo_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
} else {
+ if (!(ip_hdr(skb)->frag_off & htons(IP_DF)))
+ goto xmit;
icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
htonl(mtu));
}
@@ -531,7 +533,7 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
goto tx_err_dst_release;
}
-queued:
+xmit:
skb_scrub_packet(skb, !net_eq(t->net, dev_net(dev)));
skb_dst_set(skb, dst);
skb->dev = skb_dst(skb)->dev;
diff --git a/net/xfrm/xfrm_compat.c b/net/xfrm/xfrm_compat.c
index d8e8a11ca845..a20aec9d7393 100644
--- a/net/xfrm/xfrm_compat.c
+++ b/net/xfrm/xfrm_compat.c
@@ -216,7 +216,7 @@ static struct nlmsghdr *xfrm_nlmsg_put_compat(struct sk_buff *skb,
case XFRM_MSG_GETSADINFO:
case XFRM_MSG_GETSPDINFO:
default:
- WARN_ONCE(1, "unsupported nlmsg_type %d", nlh_src->nlmsg_type);
+ pr_warn_once("unsupported nlmsg_type %d\n", nlh_src->nlmsg_type);
return ERR_PTR(-EOPNOTSUPP);
}
@@ -277,7 +277,7 @@ static int xfrm_xlate64_attr(struct sk_buff *dst, const struct nlattr *src)
return xfrm_nla_cpy(dst, src, nla_len(src));
default:
BUILD_BUG_ON(XFRMA_MAX != XFRMA_IF_ID);
- WARN_ONCE(1, "unsupported nla_type %d", src->nla_type);
+ pr_warn_once("unsupported nla_type %d\n", src->nla_type);
return -EOPNOTSUPP;
}
}
@@ -315,8 +315,10 @@ static int xfrm_alloc_compat(struct sk_buff *skb, const struct nlmsghdr *nlh_src
struct sk_buff *new = NULL;
int err;
- if (WARN_ON_ONCE(type >= ARRAY_SIZE(xfrm_msg_min)))
+ if (type >= ARRAY_SIZE(xfrm_msg_min)) {
+ pr_warn_once("unsupported nlmsg_type %d\n", nlh_src->nlmsg_type);
return -EOPNOTSUPP;
+ }
if (skb_shinfo(skb)->frag_list == NULL) {
new = alloc_skb(skb->len + skb_tailroom(skb), GFP_ATOMIC);
@@ -378,6 +380,10 @@ static int xfrm_attr_cpy32(void *dst, size_t *pos, const struct nlattr *src,
struct nlmsghdr *nlmsg = dst;
struct nlattr *nla;
+ /* xfrm_user_rcv_msg_compat() relies on fact that 32-bit messages
+ * have the same len or shorted than 64-bit ones.
+ * 32-bit translation that is bigger than 64-bit original is unexpected.
+ */
if (WARN_ON_ONCE(copy_len > payload))
copy_len = payload;
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index edf11893dbe8..6d6917b68856 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -134,8 +134,6 @@ struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t featur
return skb;
}
- xo->flags |= XFRM_XMIT;
-
if (skb_is_gso(skb) && unlikely(x->xso.dev != dev)) {
struct sk_buff *segs;
diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index 495b1f5c979b..8831f5a9e992 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -306,6 +306,8 @@ xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
icmpv6_ndo_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
} else {
+ if (!(ip_hdr(skb)->frag_off & htons(IP_DF)))
+ goto xmit;
icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
htonl(mtu));
}
@@ -314,6 +316,7 @@ xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
return -EMSGSIZE;
}
+xmit:
xfrmi_scrub_packet(skb, !net_eq(xi->net, dev_net(dev)));
skb_dst_set(skb, dst);
skb->dev = tdev;
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index a7ab19353313..e4cb0ff4dcf4 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -503,22 +503,22 @@ out:
return err;
}
-int xfrm_output_resume(struct sk_buff *skb, int err)
+int xfrm_output_resume(struct sock *sk, struct sk_buff *skb, int err)
{
struct net *net = xs_net(skb_dst(skb)->xfrm);
while (likely((err = xfrm_output_one(skb, err)) == 0)) {
nf_reset_ct(skb);
- err = skb_dst(skb)->ops->local_out(net, skb->sk, skb);
+ err = skb_dst(skb)->ops->local_out(net, sk, skb);
if (unlikely(err != 1))
goto out;
if (!skb_dst(skb)->xfrm)
- return dst_output(net, skb->sk, skb);
+ return dst_output(net, sk, skb);
err = nf_hook(skb_dst(skb)->ops->family,
- NF_INET_POST_ROUTING, net, skb->sk, skb,
+ NF_INET_POST_ROUTING, net, sk, skb,
NULL, skb_dst(skb)->dev, xfrm_output2);
if (unlikely(err != 1))
goto out;
@@ -534,7 +534,7 @@ EXPORT_SYMBOL_GPL(xfrm_output_resume);
static int xfrm_output2(struct net *net, struct sock *sk, struct sk_buff *skb)
{
- return xfrm_output_resume(skb, 1);
+ return xfrm_output_resume(sk, skb, 1);
}
static int xfrm_output_gso(struct net *net, struct sock *sk, struct sk_buff *skb)
@@ -660,6 +660,12 @@ static int xfrm4_extract_output(struct xfrm_state *x, struct sk_buff *skb)
{
int err;
+ if (x->outer_mode.encap == XFRM_MODE_BEET &&
+ ip_is_fragment(ip_hdr(skb))) {
+ net_warn_ratelimited("BEET mode doesn't support inner IPv4 fragments\n");
+ return -EAFNOSUPPORT;
+ }
+
err = xfrm4_tunnel_check_size(skb);
if (err)
return err;
@@ -705,8 +711,15 @@ out:
static int xfrm6_extract_output(struct xfrm_state *x, struct sk_buff *skb)
{
#if IS_ENABLED(CONFIG_IPV6)
+ unsigned int ptr = 0;
int err;
+ if (x->outer_mode.encap == XFRM_MODE_BEET &&
+ ipv6_find_hdr(skb, &ptr, NEXTHDR_FRAGMENT, NULL, NULL) >= 0) {
+ net_warn_ratelimited("BEET mode doesn't support inner IPv6 fragments\n");
+ return -EAFNOSUPPORT;
+ }
+
err = xfrm6_tunnel_check_size(skb);
if (err)
return err;
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index d01ca1a18418..4496f7efa220 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -44,7 +44,6 @@ static void xfrm_state_gc_task(struct work_struct *work);
*/
static unsigned int xfrm_state_hashmax __read_mostly = 1 * 1024 * 1024;
-static __read_mostly seqcount_t xfrm_state_hash_generation = SEQCNT_ZERO(xfrm_state_hash_generation);
static struct kmem_cache *xfrm_state_cache __ro_after_init;
static DECLARE_WORK(xfrm_state_gc_work, xfrm_state_gc_task);
@@ -140,7 +139,7 @@ static void xfrm_hash_resize(struct work_struct *work)
}
spin_lock_bh(&net->xfrm.xfrm_state_lock);
- write_seqcount_begin(&xfrm_state_hash_generation);
+ write_seqcount_begin(&net->xfrm.xfrm_state_hash_generation);
nhashmask = (nsize / sizeof(struct hlist_head)) - 1U;
odst = xfrm_state_deref_prot(net->xfrm.state_bydst, net);
@@ -156,7 +155,7 @@ static void xfrm_hash_resize(struct work_struct *work)
rcu_assign_pointer(net->xfrm.state_byspi, nspi);
net->xfrm.state_hmask = nhashmask;
- write_seqcount_end(&xfrm_state_hash_generation);
+ write_seqcount_end(&net->xfrm.xfrm_state_hash_generation);
spin_unlock_bh(&net->xfrm.xfrm_state_lock);
osize = (ohashmask + 1) * sizeof(struct hlist_head);
@@ -1063,7 +1062,7 @@ xfrm_state_find(const xfrm_address_t *daddr, const xfrm_address_t *saddr,
to_put = NULL;
- sequence = read_seqcount_begin(&xfrm_state_hash_generation);
+ sequence = read_seqcount_begin(&net->xfrm.xfrm_state_hash_generation);
rcu_read_lock();
h = xfrm_dst_hash(net, daddr, saddr, tmpl->reqid, encap_family);
@@ -1176,7 +1175,7 @@ out:
if (to_put)
xfrm_state_put(to_put);
- if (read_seqcount_retry(&xfrm_state_hash_generation, sequence)) {
+ if (read_seqcount_retry(&net->xfrm.xfrm_state_hash_generation, sequence)) {
*err = -EAGAIN;
if (x) {
xfrm_state_put(x);
@@ -2666,6 +2665,8 @@ int __net_init xfrm_state_init(struct net *net)
net->xfrm.state_num = 0;
INIT_WORK(&net->xfrm.state_hash_work, xfrm_hash_resize);
spin_lock_init(&net->xfrm.xfrm_state_lock);
+ seqcount_spinlock_init(&net->xfrm.xfrm_state_hash_generation,
+ &net->xfrm.xfrm_state_lock);
return 0;
out_byspi:
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-07 20:06:41 +0300