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path: root/net/xfrm/xfrm_user.c
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Diffstat (limited to 'net/xfrm/xfrm_user.c')
-rw-r--r--net/xfrm/xfrm_user.c111
1 files changed, 93 insertions, 18 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index d5a712976004..6106b72826d3 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -446,6 +446,8 @@ static struct xfrm_state *xfrm_state_construct(struct net *net,
goto error;
}
+ xfrm_mark_get(attrs, &x->mark);
+
err = xfrm_init_state(x);
if (err)
goto error;
@@ -526,11 +528,13 @@ static struct xfrm_state *xfrm_user_state_lookup(struct net *net,
int *errp)
{
struct xfrm_state *x = NULL;
+ struct xfrm_mark m;
int err;
+ u32 mark = xfrm_mark_get(attrs, &m);
if (xfrm_id_proto_match(p->proto, IPSEC_PROTO_ANY)) {
err = -ESRCH;
- x = xfrm_state_lookup(net, &p->daddr, p->spi, p->proto, p->family);
+ x = xfrm_state_lookup(net, mark, &p->daddr, p->spi, p->proto, p->family);
} else {
xfrm_address_t *saddr = NULL;
@@ -541,7 +545,8 @@ static struct xfrm_state *xfrm_user_state_lookup(struct net *net,
}
err = -ESRCH;
- x = xfrm_state_lookup_byaddr(net, &p->daddr, saddr,
+ x = xfrm_state_lookup_byaddr(net, mark,
+ &p->daddr, saddr,
p->proto, p->family);
}
@@ -683,6 +688,9 @@ static int copy_to_user_state_extra(struct xfrm_state *x,
if (x->encap)
NLA_PUT(skb, XFRMA_ENCAP, sizeof(*x->encap), x->encap);
+ if (xfrm_mark_put(skb, &x->mark))
+ goto nla_put_failure;
+
if (x->security && copy_sec_ctx(x->security, skb) < 0)
goto nla_put_failure;
@@ -947,6 +955,8 @@ static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
xfrm_address_t *daddr;
int family;
int err;
+ u32 mark;
+ struct xfrm_mark m;
p = nlmsg_data(nlh);
err = verify_userspi_info(p);
@@ -957,8 +967,10 @@ static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
daddr = &p->info.id.daddr;
x = NULL;
+
+ mark = xfrm_mark_get(attrs, &m);
if (p->info.seq) {
- x = xfrm_find_acq_byseq(net, p->info.seq);
+ x = xfrm_find_acq_byseq(net, mark, p->info.seq);
if (x && xfrm_addr_cmp(&x->id.daddr, daddr, family)) {
xfrm_state_put(x);
x = NULL;
@@ -966,7 +978,7 @@ static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
}
if (!x)
- x = xfrm_find_acq(net, p->info.mode, p->info.reqid,
+ x = xfrm_find_acq(net, &m, p->info.mode, p->info.reqid,
p->info.id.proto, daddr,
&p->info.saddr, 1,
family);
@@ -1220,6 +1232,8 @@ static struct xfrm_policy *xfrm_policy_construct(struct net *net, struct xfrm_us
if (err)
goto error;
+ xfrm_mark_get(attrs, &xp->mark);
+
return xp;
error:
*errp = err;
@@ -1366,10 +1380,13 @@ static int dump_one_policy(struct xfrm_policy *xp, int dir, int count, void *ptr
goto nlmsg_failure;
if (copy_to_user_policy_type(xp->type, skb) < 0)
goto nlmsg_failure;
+ if (xfrm_mark_put(skb, &xp->mark))
+ goto nla_put_failure;
nlmsg_end(skb, nlh);
return 0;
+nla_put_failure:
nlmsg_failure:
nlmsg_cancel(skb, nlh);
return -EMSGSIZE;
@@ -1441,6 +1458,8 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
int err;
struct km_event c;
int delete;
+ struct xfrm_mark m;
+ u32 mark = xfrm_mark_get(attrs, &m);
p = nlmsg_data(nlh);
delete = nlh->nlmsg_type == XFRM_MSG_DELPOLICY;
@@ -1454,7 +1473,7 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
return err;
if (p->index)
- xp = xfrm_policy_byid(net, type, p->dir, p->index, delete, &err);
+ xp = xfrm_policy_byid(net, mark, type, p->dir, p->index, delete, &err);
else {
struct nlattr *rt = attrs[XFRMA_SEC_CTX];
struct xfrm_sec_ctx *ctx;
@@ -1471,8 +1490,8 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
if (err)
return err;
}
- xp = xfrm_policy_bysel_ctx(net, type, p->dir, &p->sel, ctx,
- delete, &err);
+ xp = xfrm_policy_bysel_ctx(net, mark, type, p->dir, &p->sel,
+ ctx, delete, &err);
security_xfrm_policy_free(ctx);
}
if (xp == NULL)
@@ -1524,8 +1543,11 @@ static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
audit_info.sessionid = NETLINK_CB(skb).sessionid;
audit_info.secid = NETLINK_CB(skb).sid;
err = xfrm_state_flush(net, p->proto, &audit_info);
- if (err)
+ if (err) {
+ if (err == -ESRCH) /* empty table */
+ return 0;
return err;
+ }
c.data.proto = p->proto;
c.event = nlh->nlmsg_type;
c.seq = nlh->nlmsg_seq;
@@ -1541,6 +1563,7 @@ static inline size_t xfrm_aevent_msgsize(void)
return NLMSG_ALIGN(sizeof(struct xfrm_aevent_id))
+ nla_total_size(sizeof(struct xfrm_replay_state))
+ nla_total_size(sizeof(struct xfrm_lifetime_cur))
+ + nla_total_size(sizeof(struct xfrm_mark))
+ nla_total_size(4) /* XFRM_AE_RTHR */
+ nla_total_size(4); /* XFRM_AE_ETHR */
}
@@ -1573,6 +1596,9 @@ static int build_aevent(struct sk_buff *skb, struct xfrm_state *x, struct km_eve
NLA_PUT_U32(skb, XFRMA_ETIMER_THRESH,
x->replay_maxage * 10 / HZ);
+ if (xfrm_mark_put(skb, &x->mark))
+ goto nla_put_failure;
+
return nlmsg_end(skb, nlh);
nla_put_failure:
@@ -1588,6 +1614,8 @@ static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
struct sk_buff *r_skb;
int err;
struct km_event c;
+ u32 mark;
+ struct xfrm_mark m;
struct xfrm_aevent_id *p = nlmsg_data(nlh);
struct xfrm_usersa_id *id = &p->sa_id;
@@ -1595,7 +1623,9 @@ static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
if (r_skb == NULL)
return -ENOMEM;
- x = xfrm_state_lookup(net, &id->daddr, id->spi, id->proto, id->family);
+ mark = xfrm_mark_get(attrs, &m);
+
+ x = xfrm_state_lookup(net, mark, &id->daddr, id->spi, id->proto, id->family);
if (x == NULL) {
kfree_skb(r_skb);
return -ESRCH;
@@ -1626,6 +1656,8 @@ static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
struct xfrm_state *x;
struct km_event c;
int err = - EINVAL;
+ u32 mark = 0;
+ struct xfrm_mark m;
struct xfrm_aevent_id *p = nlmsg_data(nlh);
struct nlattr *rp = attrs[XFRMA_REPLAY_VAL];
struct nlattr *lt = attrs[XFRMA_LTIME_VAL];
@@ -1637,7 +1669,9 @@ static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
if (!(nlh->nlmsg_flags&NLM_F_REPLACE))
return err;
- x = xfrm_state_lookup(net, &p->sa_id.daddr, p->sa_id.spi, p->sa_id.proto, p->sa_id.family);
+ mark = xfrm_mark_get(attrs, &m);
+
+ x = xfrm_state_lookup(net, mark, &p->sa_id.daddr, p->sa_id.spi, p->sa_id.proto, p->sa_id.family);
if (x == NULL)
return -ESRCH;
@@ -1676,8 +1710,12 @@ static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
audit_info.sessionid = NETLINK_CB(skb).sessionid;
audit_info.secid = NETLINK_CB(skb).sid;
err = xfrm_policy_flush(net, type, &audit_info);
- if (err)
+ if (err) {
+ if (err == -ESRCH) /* empty table */
+ return 0;
return err;
+ }
+
c.data.type = type;
c.event = nlh->nlmsg_type;
c.seq = nlh->nlmsg_seq;
@@ -1696,13 +1734,15 @@ static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
struct xfrm_userpolicy_info *p = &up->pol;
u8 type = XFRM_POLICY_TYPE_MAIN;
int err = -ENOENT;
+ struct xfrm_mark m;
+ u32 mark = xfrm_mark_get(attrs, &m);
err = copy_from_user_policy_type(&type, attrs);
if (err)
return err;
if (p->index)
- xp = xfrm_policy_byid(net, type, p->dir, p->index, 0, &err);
+ xp = xfrm_policy_byid(net, mark, type, p->dir, p->index, 0, &err);
else {
struct nlattr *rt = attrs[XFRMA_SEC_CTX];
struct xfrm_sec_ctx *ctx;
@@ -1719,7 +1759,8 @@ static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
if (err)
return err;
}
- xp = xfrm_policy_bysel_ctx(net, type, p->dir, &p->sel, ctx, 0, &err);
+ xp = xfrm_policy_bysel_ctx(net, mark, type, p->dir,
+ &p->sel, ctx, 0, &err);
security_xfrm_policy_free(ctx);
}
if (xp == NULL)
@@ -1759,8 +1800,10 @@ static int xfrm_add_sa_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
int err;
struct xfrm_user_expire *ue = nlmsg_data(nlh);
struct xfrm_usersa_info *p = &ue->state;
+ struct xfrm_mark m;
+ u32 mark = xfrm_mark_get(attrs, &m);;
- x = xfrm_state_lookup(net, &p->id.daddr, p->id.spi, p->id.proto, p->family);
+ x = xfrm_state_lookup(net, mark, &p->id.daddr, p->id.spi, p->id.proto, p->family);
err = -ENOENT;
if (x == NULL)
@@ -1794,6 +1837,7 @@ static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh,
struct xfrm_user_tmpl *ut;
int i;
struct nlattr *rt = attrs[XFRMA_TMPL];
+ struct xfrm_mark mark;
struct xfrm_user_acquire *ua = nlmsg_data(nlh);
struct xfrm_state *x = xfrm_state_alloc(net);
@@ -1802,6 +1846,8 @@ static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh,
if (!x)
goto nomem;
+ xfrm_mark_get(attrs, &mark);
+
err = verify_newpolicy_info(&ua->policy);
if (err)
goto bad_policy;
@@ -1814,7 +1860,8 @@ static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh,
memcpy(&x->id, &ua->id, sizeof(ua->id));
memcpy(&x->props.saddr, &ua->saddr, sizeof(ua->saddr));
memcpy(&x->sel, &ua->sel, sizeof(ua->sel));
-
+ xp->mark.m = x->mark.m = mark.m;
+ xp->mark.v = x->mark.v = mark.v;
ut = nla_data(rt);
/* extract the templates and for each call km_key */
for (i = 0; i < xp->xfrm_nr; i++, ut++) {
@@ -2054,6 +2101,10 @@ static const int xfrm_msg_min[XFRM_NR_MSGTYPES] = {
#undef XMSGSIZE
static const struct nla_policy xfrma_policy[XFRMA_MAX+1] = {
+ [XFRMA_SA] = { .len = sizeof(struct xfrm_usersa_info)},
+ [XFRMA_POLICY] = { .len = sizeof(struct xfrm_userpolicy_info)},
+ [XFRMA_LASTUSED] = { .type = NLA_U64},
+ [XFRMA_ALG_AUTH_TRUNC] = { .len = sizeof(struct xfrm_algo_auth)},
[XFRMA_ALG_AEAD] = { .len = sizeof(struct xfrm_algo_aead) },
[XFRMA_ALG_AUTH] = { .len = sizeof(struct xfrm_algo) },
[XFRMA_ALG_CRYPT] = { .len = sizeof(struct xfrm_algo) },
@@ -2070,6 +2121,7 @@ static const struct nla_policy xfrma_policy[XFRMA_MAX+1] = {
[XFRMA_POLICY_TYPE] = { .len = sizeof(struct xfrm_userpolicy_type)},
[XFRMA_MIGRATE] = { .len = sizeof(struct xfrm_user_migrate) },
[XFRMA_KMADDRESS] = { .len = sizeof(struct xfrm_user_kmaddress) },
+ [XFRMA_MARK] = { .len = sizeof(struct xfrm_mark) },
};
static struct xfrm_link {
@@ -2149,7 +2201,8 @@ static void xfrm_netlink_rcv(struct sk_buff *skb)
static inline size_t xfrm_expire_msgsize(void)
{
- return NLMSG_ALIGN(sizeof(struct xfrm_user_expire));
+ return NLMSG_ALIGN(sizeof(struct xfrm_user_expire))
+ + nla_total_size(sizeof(struct xfrm_mark));
}
static int build_expire(struct sk_buff *skb, struct xfrm_state *x, struct km_event *c)
@@ -2165,7 +2218,13 @@ static int build_expire(struct sk_buff *skb, struct xfrm_state *x, struct km_eve
copy_to_user_state(x, &ue->state);
ue->hard = (c->data.hard != 0) ? 1 : 0;
+ if (xfrm_mark_put(skb, &x->mark))
+ goto nla_put_failure;
+
return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+ return -EMSGSIZE;
}
static int xfrm_exp_state_notify(struct xfrm_state *x, struct km_event *c)
@@ -2177,8 +2236,10 @@ static int xfrm_exp_state_notify(struct xfrm_state *x, struct km_event *c)
if (skb == NULL)
return -ENOMEM;
- if (build_expire(skb, x, c) < 0)
- BUG();
+ if (build_expire(skb, x, c) < 0) {
+ kfree_skb(skb);
+ return -EMSGSIZE;
+ }
return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_EXPIRE, GFP_ATOMIC);
}
@@ -2266,6 +2327,7 @@ static int xfrm_notify_sa(struct xfrm_state *x, struct km_event *c)
if (c->event == XFRM_MSG_DELSA) {
len += nla_total_size(headlen);
headlen = sizeof(*id);
+ len += nla_total_size(sizeof(struct xfrm_mark));
}
len += NLMSG_ALIGN(headlen);
@@ -2336,6 +2398,7 @@ static inline size_t xfrm_acquire_msgsize(struct xfrm_state *x,
{
return NLMSG_ALIGN(sizeof(struct xfrm_user_acquire))
+ nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr)
+ + nla_total_size(sizeof(struct xfrm_mark))
+ nla_total_size(xfrm_user_sec_ctx_size(x->security))
+ userpolicy_type_attrsize();
}
@@ -2368,9 +2431,12 @@ static int build_acquire(struct sk_buff *skb, struct xfrm_state *x,
goto nlmsg_failure;
if (copy_to_user_policy_type(xp->type, skb) < 0)
goto nlmsg_failure;
+ if (xfrm_mark_put(skb, &xp->mark))
+ goto nla_put_failure;
return nlmsg_end(skb, nlh);
+nla_put_failure:
nlmsg_failure:
nlmsg_cancel(skb, nlh);
return -EMSGSIZE;
@@ -2457,6 +2523,7 @@ static inline size_t xfrm_polexpire_msgsize(struct xfrm_policy *xp)
return NLMSG_ALIGN(sizeof(struct xfrm_user_polexpire))
+ nla_total_size(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr)
+ nla_total_size(xfrm_user_sec_ctx_size(xp->security))
+ + nla_total_size(sizeof(struct xfrm_mark))
+ userpolicy_type_attrsize();
}
@@ -2479,10 +2546,13 @@ static int build_polexpire(struct sk_buff *skb, struct xfrm_policy *xp,
goto nlmsg_failure;
if (copy_to_user_policy_type(xp->type, skb) < 0)
goto nlmsg_failure;
+ if (xfrm_mark_put(skb, &xp->mark))
+ goto nla_put_failure;
upe->hard = !!hard;
return nlmsg_end(skb, nlh);
+nla_put_failure:
nlmsg_failure:
nlmsg_cancel(skb, nlh);
return -EMSGSIZE;
@@ -2519,6 +2589,7 @@ static int xfrm_notify_policy(struct xfrm_policy *xp, int dir, struct km_event *
headlen = sizeof(*id);
}
len += userpolicy_type_attrsize();
+ len += nla_total_size(sizeof(struct xfrm_mark));
len += NLMSG_ALIGN(headlen);
skb = nlmsg_new(len, GFP_ATOMIC);
@@ -2554,10 +2625,14 @@ static int xfrm_notify_policy(struct xfrm_policy *xp, int dir, struct km_event *
if (copy_to_user_policy_type(xp->type, skb) < 0)
goto nlmsg_failure;
+ if (xfrm_mark_put(skb, &xp->mark))
+ goto nla_put_failure;
+
nlmsg_end(skb, nlh);
return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_POLICY, GFP_ATOMIC);
+nla_put_failure:
nlmsg_failure:
kfree_skb(skb);
return -1;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-12 12:53:42 +0300