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-rw-r--r--include/net/xfrm.h9
-rw-r--r--include/uapi/linux/xfrm.h1
-rw-r--r--net/ipv4/xfrm4_policy.c14
-rw-r--r--net/ipv6/xfrm6_policy.c9
-rw-r--r--net/xfrm/xfrm_device.c3
-rw-r--r--net/xfrm/xfrm_output.c3
-rw-r--r--net/xfrm/xfrm_policy.c17
-rw-r--r--net/xfrm/xfrm_user.c11
8 files changed, 47 insertions, 20 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 18d7de34a5c3..9c7b70cce6d6 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -165,6 +165,7 @@ struct xfrm_state {
int header_len;
int trailer_len;
u32 extra_flags;
+ u32 output_mark;
} props;
struct xfrm_lifetime_cfg lft;
@@ -298,10 +299,12 @@ struct xfrm_policy_afinfo {
struct dst_entry *(*dst_lookup)(struct net *net,
int tos, int oif,
const xfrm_address_t *saddr,
- const xfrm_address_t *daddr);
+ const xfrm_address_t *daddr,
+ u32 mark);
int (*get_saddr)(struct net *net, int oif,
xfrm_address_t *saddr,
- xfrm_address_t *daddr);
+ xfrm_address_t *daddr,
+ u32 mark);
void (*decode_session)(struct sk_buff *skb,
struct flowi *fl,
int reverse);
@@ -1640,7 +1643,7 @@ static inline int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb)
struct dst_entry *__xfrm_dst_lookup(struct net *net, int tos, int oif,
const xfrm_address_t *saddr,
const xfrm_address_t *daddr,
- int family);
+ int family, u32 mark);
struct xfrm_policy *xfrm_policy_alloc(struct net *net, gfp_t gfp);
diff --git a/include/uapi/linux/xfrm.h b/include/uapi/linux/xfrm.h
index 2b384ff09fa0..5fe7370a2bef 100644
--- a/include/uapi/linux/xfrm.h
+++ b/include/uapi/linux/xfrm.h
@@ -304,6 +304,7 @@ enum xfrm_attr_type_t {
XFRMA_ADDRESS_FILTER, /* struct xfrm_address_filter */
XFRMA_PAD,
XFRMA_OFFLOAD_DEV, /* struct xfrm_state_offload */
+ XFRMA_OUTPUT_MARK, /* __u32 */
__XFRMA_MAX
#define XFRMA_MAX (__XFRMA_MAX - 1)
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 4aefb149fe0a..d7bf0b041885 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -20,7 +20,8 @@
static struct dst_entry *__xfrm4_dst_lookup(struct net *net, struct flowi4 *fl4,
int tos, int oif,
const xfrm_address_t *saddr,
- const xfrm_address_t *daddr)
+ const xfrm_address_t *daddr,
+ u32 mark)
{
struct rtable *rt;
@@ -28,6 +29,7 @@ static struct dst_entry *__xfrm4_dst_lookup(struct net *net, struct flowi4 *fl4,
fl4->daddr = daddr->a4;
fl4->flowi4_tos = tos;
fl4->flowi4_oif = l3mdev_master_ifindex_by_index(net, oif);
+ fl4->flowi4_mark = mark;
if (saddr)
fl4->saddr = saddr->a4;
@@ -42,20 +44,22 @@ static struct dst_entry *__xfrm4_dst_lookup(struct net *net, struct flowi4 *fl4,
static struct dst_entry *xfrm4_dst_lookup(struct net *net, int tos, int oif,
const xfrm_address_t *saddr,
- const xfrm_address_t *daddr)
+ const xfrm_address_t *daddr,
+ u32 mark)
{
struct flowi4 fl4;
- return __xfrm4_dst_lookup(net, &fl4, tos, oif, saddr, daddr);
+ return __xfrm4_dst_lookup(net, &fl4, tos, oif, saddr, daddr, mark);
}
static int xfrm4_get_saddr(struct net *net, int oif,
- xfrm_address_t *saddr, xfrm_address_t *daddr)
+ xfrm_address_t *saddr, xfrm_address_t *daddr,
+ u32 mark)
{
struct dst_entry *dst;
struct flowi4 fl4;
- dst = __xfrm4_dst_lookup(net, &fl4, 0, oif, NULL, daddr);
+ dst = __xfrm4_dst_lookup(net, &fl4, 0, oif, NULL, daddr, mark);
if (IS_ERR(dst))
return -EHOSTUNREACH;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index f44b25a48478..11d1314ab6c5 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -27,7 +27,8 @@
static struct dst_entry *xfrm6_dst_lookup(struct net *net, int tos, int oif,
const xfrm_address_t *saddr,
- const xfrm_address_t *daddr)
+ const xfrm_address_t *daddr,
+ u32 mark)
{
struct flowi6 fl6;
struct dst_entry *dst;
@@ -36,6 +37,7 @@ static struct dst_entry *xfrm6_dst_lookup(struct net *net, int tos, int oif,
memset(&fl6, 0, sizeof(fl6));
fl6.flowi6_oif = l3mdev_master_ifindex_by_index(net, oif);
fl6.flowi6_flags = FLOWI_FLAG_SKIP_NH_OIF;
+ fl6.flowi6_mark = mark;
memcpy(&fl6.daddr, daddr, sizeof(fl6.daddr));
if (saddr)
memcpy(&fl6.saddr, saddr, sizeof(fl6.saddr));
@@ -52,12 +54,13 @@ static struct dst_entry *xfrm6_dst_lookup(struct net *net, int tos, int oif,
}
static int xfrm6_get_saddr(struct net *net, int oif,
- xfrm_address_t *saddr, xfrm_address_t *daddr)
+ xfrm_address_t *saddr, xfrm_address_t *daddr,
+ u32 mark)
{
struct dst_entry *dst;
struct net_device *dev;
- dst = xfrm6_dst_lookup(net, 0, oif, NULL, daddr);
+ dst = xfrm6_dst_lookup(net, 0, oif, NULL, daddr, mark);
if (IS_ERR(dst))
return -EHOSTUNREACH;
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index 1904127f5fb8..acf00104ef31 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -79,7 +79,8 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
daddr = &x->props.saddr;
}
- dst = __xfrm_dst_lookup(net, 0, 0, saddr, daddr, x->props.family);
+ dst = __xfrm_dst_lookup(net, 0, 0, saddr, daddr,
+ x->props.family, x->props.output_mark);
if (IS_ERR(dst))
return 0;
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 8c0b6722aaa8..31a2e6d34dba 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -66,6 +66,9 @@ static int xfrm_output_one(struct sk_buff *skb, int err)
goto error_nolock;
}
+ if (x->props.output_mark)
+ skb->mark = x->props.output_mark;
+
err = x->outer_mode->output(x, skb);
if (err) {
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTSTATEMODEERROR);
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 06c3bf7ab86b..1de52f36caf5 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -122,7 +122,7 @@ static const struct xfrm_policy_afinfo *xfrm_policy_get_afinfo(unsigned short fa
struct dst_entry *__xfrm_dst_lookup(struct net *net, int tos, int oif,
const xfrm_address_t *saddr,
const xfrm_address_t *daddr,
- int family)
+ int family, u32 mark)
{
const struct xfrm_policy_afinfo *afinfo;
struct dst_entry *dst;
@@ -131,7 +131,7 @@ struct dst_entry *__xfrm_dst_lookup(struct net *net, int tos, int oif,
if (unlikely(afinfo == NULL))
return ERR_PTR(-EAFNOSUPPORT);
- dst = afinfo->dst_lookup(net, tos, oif, saddr, daddr);
+ dst = afinfo->dst_lookup(net, tos, oif, saddr, daddr, mark);
rcu_read_unlock();
@@ -143,7 +143,7 @@ static inline struct dst_entry *xfrm_dst_lookup(struct xfrm_state *x,
int tos, int oif,
xfrm_address_t *prev_saddr,
xfrm_address_t *prev_daddr,
- int family)
+ int family, u32 mark)
{
struct net *net = xs_net(x);
xfrm_address_t *saddr = &x->props.saddr;
@@ -159,7 +159,7 @@ static inline struct dst_entry *xfrm_dst_lookup(struct xfrm_state *x,
daddr = x->coaddr;
}
- dst = __xfrm_dst_lookup(net, tos, oif, saddr, daddr, family);
+ dst = __xfrm_dst_lookup(net, tos, oif, saddr, daddr, family, mark);
if (!IS_ERR(dst)) {
if (prev_saddr != saddr)
@@ -1340,14 +1340,14 @@ int __xfrm_sk_clone_policy(struct sock *sk, const struct sock *osk)
static int
xfrm_get_saddr(struct net *net, int oif, xfrm_address_t *local,
- xfrm_address_t *remote, unsigned short family)
+ xfrm_address_t *remote, unsigned short family, u32 mark)
{
int err;
const struct xfrm_policy_afinfo *afinfo = xfrm_policy_get_afinfo(family);
if (unlikely(afinfo == NULL))
return -EINVAL;
- err = afinfo->get_saddr(net, oif, local, remote);
+ err = afinfo->get_saddr(net, oif, local, remote, mark);
rcu_read_unlock();
return err;
}
@@ -1378,7 +1378,7 @@ xfrm_tmpl_resolve_one(struct xfrm_policy *policy, const struct flowi *fl,
if (xfrm_addr_any(local, tmpl->encap_family)) {
error = xfrm_get_saddr(net, fl->flowi_oif,
&tmp, remote,
- tmpl->encap_family);
+ tmpl->encap_family, 0);
if (error)
goto fail;
local = &tmp;
@@ -1598,7 +1598,8 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
if (xfrm[i]->props.mode != XFRM_MODE_TRANSPORT) {
family = xfrm[i]->props.family;
dst = xfrm_dst_lookup(xfrm[i], tos, fl->flowi_oif,
- &saddr, &daddr, family);
+ &saddr, &daddr, family,
+ xfrm[i]->props.output_mark);
err = PTR_ERR(dst);
if (IS_ERR(dst))
goto put_states;
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index ffe8d5ef09eb..cc3268d814b4 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -584,6 +584,9 @@ static struct xfrm_state *xfrm_state_construct(struct net *net,
xfrm_mark_get(attrs, &x->mark);
+ if (attrs[XFRMA_OUTPUT_MARK])
+ x->props.output_mark = nla_get_u32(attrs[XFRMA_OUTPUT_MARK]);
+
err = __xfrm_init_state(x, false, attrs[XFRMA_OFFLOAD_DEV]);
if (err)
goto error;
@@ -899,6 +902,11 @@ static int copy_to_user_state_extra(struct xfrm_state *x,
goto out;
if (x->security)
ret = copy_sec_ctx(x->security, skb);
+ if (x->props.output_mark) {
+ ret = nla_put_u32(skb, XFRMA_OUTPUT_MARK, x->props.output_mark);
+ if (ret)
+ goto out;
+ }
out:
return ret;
}
@@ -2454,6 +2462,7 @@ static const struct nla_policy xfrma_policy[XFRMA_MAX+1] = {
[XFRMA_PROTO] = { .type = NLA_U8 },
[XFRMA_ADDRESS_FILTER] = { .len = sizeof(struct xfrm_address_filter) },
[XFRMA_OFFLOAD_DEV] = { .len = sizeof(struct xfrm_user_offload) },
+ [XFRMA_OUTPUT_MARK] = { .len = NLA_U32 },
};
static const struct nla_policy xfrma_spd_policy[XFRMA_SPD_MAX+1] = {
@@ -2673,6 +2682,8 @@ static inline size_t xfrm_sa_len(struct xfrm_state *x)
l += nla_total_size(sizeof(x->props.extra_flags));
if (x->xso.dev)
l += nla_total_size(sizeof(x->xso));
+ if (x->props.output_mark)
+ l += nla_total_size(sizeof(x->props.output_mark));
/* Must count x->lastused as it may become non-zero behind our back. */
l += nla_total_size_64bit(sizeof(u64));
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.