switch (type) {
case XFRMA_ALG_AUTH:
- if (!algp->alg_key_len &&
- strcmp(algp->alg_name, "digest_null") != 0)
- return -EINVAL;
- break;
-
case XFRMA_ALG_CRYPT:
- if (!algp->alg_key_len &&
- strcmp(algp->alg_name, "cipher_null") != 0)
- return -EINVAL;
- break;
-
case XFRMA_ALG_COMP:
- /* Zero length keys are legal. */
break;
default:
memcpy(&x->props.saddr, &p->saddr, sizeof(x->props.saddr));
x->props.flags = p->flags;
- if (!x->sel.family)
+ if (!x->sel.family && !(p->flags & XFRM_STATE_AF_UNSPEC))
x->sel.family = p->family;
-
}
/*
x->replay_maxdiff = nla_get_u32(rt);
}
-static struct xfrm_state *xfrm_state_construct(struct xfrm_usersa_info *p,
+static struct xfrm_state *xfrm_state_construct(struct net *net,
+ struct xfrm_usersa_info *p,
struct nlattr **attrs,
int *errp)
{
- struct xfrm_state *x = xfrm_state_alloc();
+ struct xfrm_state *x = xfrm_state_alloc(net);
int err = -ENOMEM;
if (!x)
goto error;
x->km.seq = p->seq;
- x->replay_maxdiff = sysctl_xfrm_aevent_rseqth;
+ x->replay_maxdiff = net->xfrm.sysctl_aevent_rseqth;
/* sysctl_xfrm_aevent_etime is in 100ms units */
- x->replay_maxage = (sysctl_xfrm_aevent_etime*HZ)/XFRM_AE_ETH_M;
+ x->replay_maxage = (net->xfrm.sysctl_aevent_etime*HZ)/XFRM_AE_ETH_M;
x->preplay.bitmap = 0;
x->preplay.seq = x->replay.seq+x->replay_maxdiff;
x->preplay.oseq = x->replay.oseq +x->replay_maxdiff;
static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_usersa_info *p = nlmsg_data(nlh);
struct xfrm_state *x;
int err;
if (err)
return err;
- x = xfrm_state_construct(p, attrs, &err);
+ x = xfrm_state_construct(net, p, attrs, &err);
if (!x)
return err;
return err;
}
-static struct xfrm_state *xfrm_user_state_lookup(struct xfrm_usersa_id *p,
+static struct xfrm_state *xfrm_user_state_lookup(struct net *net,
+ struct xfrm_usersa_id *p,
struct nlattr **attrs,
int *errp)
{
if (xfrm_id_proto_match(p->proto, IPSEC_PROTO_ANY)) {
err = -ESRCH;
- x = xfrm_state_lookup(&p->daddr, p->spi, p->proto, p->family);
+ x = xfrm_state_lookup(net, &p->daddr, p->spi, p->proto, p->family);
} else {
xfrm_address_t *saddr = NULL;
}
err = -ESRCH;
- x = xfrm_state_lookup_byaddr(&p->daddr, saddr, p->proto,
- p->family);
+ x = xfrm_state_lookup_byaddr(net, &p->daddr, saddr,
+ p->proto, p->family);
}
out:
static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_state *x;
int err = -ESRCH;
struct km_event c;
u32 sessionid = NETLINK_CB(skb).sessionid;
u32 sid = NETLINK_CB(skb).sid;
- x = xfrm_user_state_lookup(p, attrs, &err);
+ x = xfrm_user_state_lookup(net, p, attrs, &err);
if (x == NULL)
return err;
static int xfrm_dump_sa(struct sk_buff *skb, struct netlink_callback *cb)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_state_walk *walk = (struct xfrm_state_walk *) &cb->args[1];
struct xfrm_dump_info info;
xfrm_state_walk_init(walk, 0);
}
- (void) xfrm_state_walk(walk, dump_one_state, &info);
+ (void) xfrm_state_walk(net, walk, dump_one_state, &info);
return skb->len;
}
static int xfrm_get_spdinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct sk_buff *r_skb;
u32 *flags = nlmsg_data(nlh);
u32 spid = NETLINK_CB(skb).pid;
if (build_spdinfo(r_skb, spid, seq, *flags) < 0)
BUG();
- return nlmsg_unicast(xfrm_nl, r_skb, spid);
+ return nlmsg_unicast(net->xfrm.nlsk, r_skb, spid);
}
static inline size_t xfrm_sadinfo_msgsize(void)
static int xfrm_get_sadinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct sk_buff *r_skb;
u32 *flags = nlmsg_data(nlh);
u32 spid = NETLINK_CB(skb).pid;
if (build_sadinfo(r_skb, spid, seq, *flags) < 0)
BUG();
- return nlmsg_unicast(xfrm_nl, r_skb, spid);
+ return nlmsg_unicast(net->xfrm.nlsk, r_skb, spid);
}
static int xfrm_get_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_usersa_id *p = nlmsg_data(nlh);
struct xfrm_state *x;
struct sk_buff *resp_skb;
int err = -ESRCH;
- x = xfrm_user_state_lookup(p, attrs, &err);
+ x = xfrm_user_state_lookup(net, p, attrs, &err);
if (x == NULL)
goto out_noput;
if (IS_ERR(resp_skb)) {
err = PTR_ERR(resp_skb);
} else {
- err = nlmsg_unicast(xfrm_nl, resp_skb, NETLINK_CB(skb).pid);
+ err = nlmsg_unicast(net->xfrm.nlsk, resp_skb, NETLINK_CB(skb).pid);
}
xfrm_state_put(x);
out_noput:
static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_state *x;
struct xfrm_userspi_info *p;
struct sk_buff *resp_skb;
x = NULL;
if (p->info.seq) {
- x = xfrm_find_acq_byseq(p->info.seq);
+ x = xfrm_find_acq_byseq(net, p->info.seq);
if (x && xfrm_addr_cmp(&x->id.daddr, daddr, family)) {
xfrm_state_put(x);
x = NULL;
}
if (!x)
- x = xfrm_find_acq(p->info.mode, p->info.reqid,
+ x = xfrm_find_acq(net, p->info.mode, p->info.reqid,
p->info.id.proto, daddr,
&p->info.saddr, 1,
family);
goto out;
}
- err = nlmsg_unicast(xfrm_nl, resp_skb, NETLINK_CB(skb).pid);
+ err = nlmsg_unicast(net->xfrm.nlsk, resp_skb, NETLINK_CB(skb).pid);
out:
xfrm_state_put(x);
p->share = XFRM_SHARE_ANY; /* XXX xp->share */
}
-static struct xfrm_policy *xfrm_policy_construct(struct xfrm_userpolicy_info *p, struct nlattr **attrs, int *errp)
+static struct xfrm_policy *xfrm_policy_construct(struct net *net, struct xfrm_userpolicy_info *p, struct nlattr **attrs, int *errp)
{
- struct xfrm_policy *xp = xfrm_policy_alloc(GFP_KERNEL);
+ struct xfrm_policy *xp = xfrm_policy_alloc(net, GFP_KERNEL);
int err;
if (!xp) {
return xp;
error:
*errp = err;
- xp->dead = 1;
+ xp->walk.dead = 1;
xfrm_policy_destroy(xp);
return NULL;
}
static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_userpolicy_info *p = nlmsg_data(nlh);
struct xfrm_policy *xp;
struct km_event c;
if (err)
return err;
- xp = xfrm_policy_construct(p, attrs, &err);
+ xp = xfrm_policy_construct(net, p, attrs, &err);
if (!xp)
return err;
static int xfrm_dump_policy(struct sk_buff *skb, struct netlink_callback *cb)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_policy_walk *walk = (struct xfrm_policy_walk *) &cb->args[1];
struct xfrm_dump_info info;
xfrm_policy_walk_init(walk, XFRM_POLICY_TYPE_ANY);
}
- (void) xfrm_policy_walk(walk, dump_one_policy, &info);
+ (void) xfrm_policy_walk(net, walk, dump_one_policy, &info);
return skb->len;
}
static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_policy *xp;
struct xfrm_userpolicy_id *p;
u8 type = XFRM_POLICY_TYPE_MAIN;
return err;
if (p->index)
- xp = xfrm_policy_byid(type, p->dir, p->index, delete, &err);
+ xp = xfrm_policy_byid(net, type, p->dir, p->index, delete, &err);
else {
struct nlattr *rt = attrs[XFRMA_SEC_CTX];
struct xfrm_sec_ctx *ctx;
if (err)
return err;
}
- xp = xfrm_policy_bysel_ctx(type, p->dir, &p->sel, ctx,
+ xp = xfrm_policy_bysel_ctx(net, type, p->dir, &p->sel, ctx,
delete, &err);
security_xfrm_policy_free(ctx);
}
if (IS_ERR(resp_skb)) {
err = PTR_ERR(resp_skb);
} else {
- err = nlmsg_unicast(xfrm_nl, resp_skb,
+ err = nlmsg_unicast(net->xfrm.nlsk, resp_skb,
NETLINK_CB(skb).pid);
}
} else {
static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct km_event c;
struct xfrm_usersa_flush *p = nlmsg_data(nlh);
struct xfrm_audit audit_info;
audit_info.loginuid = NETLINK_CB(skb).loginuid;
audit_info.sessionid = NETLINK_CB(skb).sessionid;
audit_info.secid = NETLINK_CB(skb).sid;
- err = xfrm_state_flush(p->proto, &audit_info);
+ err = xfrm_state_flush(net, p->proto, &audit_info);
if (err)
return err;
c.data.proto = p->proto;
c.event = nlh->nlmsg_type;
c.seq = nlh->nlmsg_seq;
c.pid = nlh->nlmsg_pid;
+ c.net = net;
km_state_notify(NULL, &c);
return 0;
static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_state *x;
struct sk_buff *r_skb;
int err;
if (r_skb == NULL)
return -ENOMEM;
- x = xfrm_state_lookup(&id->daddr, id->spi, id->proto, id->family);
+ x = xfrm_state_lookup(net, &id->daddr, id->spi, id->proto, id->family);
if (x == NULL) {
kfree_skb(r_skb);
return -ESRCH;
if (build_aevent(r_skb, x, &c) < 0)
BUG();
- err = nlmsg_unicast(xfrm_nl, r_skb, NETLINK_CB(skb).pid);
+ err = nlmsg_unicast(net->xfrm.nlsk, r_skb, NETLINK_CB(skb).pid);
spin_unlock_bh(&x->lock);
xfrm_state_put(x);
return err;
static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_state *x;
struct km_event c;
int err = - EINVAL;
if (!(nlh->nlmsg_flags&NLM_F_REPLACE))
return err;
- x = xfrm_state_lookup(&p->sa_id.daddr, p->sa_id.spi, p->sa_id.proto, p->sa_id.family);
+ x = xfrm_state_lookup(net, &p->sa_id.daddr, p->sa_id.spi, p->sa_id.proto, p->sa_id.family);
if (x == NULL)
return -ESRCH;
static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct km_event c;
u8 type = XFRM_POLICY_TYPE_MAIN;
int err;
audit_info.loginuid = NETLINK_CB(skb).loginuid;
audit_info.sessionid = NETLINK_CB(skb).sessionid;
audit_info.secid = NETLINK_CB(skb).sid;
- err = xfrm_policy_flush(type, &audit_info);
+ err = xfrm_policy_flush(net, type, &audit_info);
if (err)
return err;
c.data.type = type;
c.event = nlh->nlmsg_type;
c.seq = nlh->nlmsg_seq;
c.pid = nlh->nlmsg_pid;
+ c.net = net;
km_policy_notify(NULL, 0, &c);
return 0;
}
static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_policy *xp;
struct xfrm_user_polexpire *up = nlmsg_data(nlh);
struct xfrm_userpolicy_info *p = &up->pol;
return err;
if (p->index)
- xp = xfrm_policy_byid(type, p->dir, p->index, 0, &err);
+ xp = xfrm_policy_byid(net, type, p->dir, p->index, 0, &err);
else {
struct nlattr *rt = attrs[XFRMA_SEC_CTX];
struct xfrm_sec_ctx *ctx;
if (err)
return err;
}
- xp = xfrm_policy_bysel_ctx(type, p->dir, &p->sel, ctx, 0, &err);
+ xp = xfrm_policy_bysel_ctx(net, type, p->dir, &p->sel, ctx, 0, &err);
security_xfrm_policy_free(ctx);
}
if (xp == NULL)
return -ENOENT;
read_lock(&xp->lock);
- if (xp->dead) {
+ if (xp->walk.dead) {
read_unlock(&xp->lock);
goto out;
}
static int xfrm_add_sa_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_state *x;
int err;
struct xfrm_user_expire *ue = nlmsg_data(nlh);
struct xfrm_usersa_info *p = &ue->state;
- x = xfrm_state_lookup(&p->id.daddr, p->id.spi, p->id.proto, p->family);
+ x = xfrm_state_lookup(net, &p->id.daddr, p->id.spi, p->id.proto, p->family);
err = -ENOENT;
if (x == NULL)
static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
+ struct net *net = sock_net(skb->sk);
struct xfrm_policy *xp;
struct xfrm_user_tmpl *ut;
int i;
struct nlattr *rt = attrs[XFRMA_TMPL];
struct xfrm_user_acquire *ua = nlmsg_data(nlh);
- struct xfrm_state *x = xfrm_state_alloc();
+ struct xfrm_state *x = xfrm_state_alloc(net);
int err = -ENOMEM;
if (!x)
- return err;
+ goto nomem;
err = verify_newpolicy_info(&ua->policy);
- if (err) {
- printk("BAD policy passed\n");
- kfree(x);
- return err;
- }
+ if (err)
+ goto bad_policy;
/* build an XP */
- xp = xfrm_policy_construct(&ua->policy, attrs, &err);
- if (!xp) {
- kfree(x);
- return err;
- }
+ xp = xfrm_policy_construct(net, &ua->policy, attrs, &err);
+ if (!xp)
+ goto free_state;
memcpy(&x->id, &ua->id, sizeof(ua->id));
memcpy(&x->props.saddr, &ua->saddr, sizeof(ua->saddr));
kfree(xp);
return 0;
+
+bad_policy:
+ printk("BAD policy passed\n");
+free_state:
+ kfree(x);
+nomem:
+ return err;
}
#ifdef CONFIG_XFRM_MIGRATE
static int copy_from_user_migrate(struct xfrm_migrate *ma,
+ struct xfrm_kmaddress *k,
struct nlattr **attrs, int *num)
{
struct nlattr *rt = attrs[XFRMA_MIGRATE];
struct xfrm_user_migrate *um;
int i, num_migrate;
+ if (k != NULL) {
+ struct xfrm_user_kmaddress *uk;
+
+ uk = nla_data(attrs[XFRMA_KMADDRESS]);
+ memcpy(&k->local, &uk->local, sizeof(k->local));
+ memcpy(&k->remote, &uk->remote, sizeof(k->remote));
+ k->family = uk->family;
+ k->reserved = uk->reserved;
+ }
+
um = nla_data(rt);
num_migrate = nla_len(rt) / sizeof(*um);
{
struct xfrm_userpolicy_id *pi = nlmsg_data(nlh);
struct xfrm_migrate m[XFRM_MAX_DEPTH];
+ struct xfrm_kmaddress km, *kmp;
u8 type;
int err;
int n = 0;
if (attrs[XFRMA_MIGRATE] == NULL)
return -EINVAL;
+ kmp = attrs[XFRMA_KMADDRESS] ? &km : NULL;
+
err = copy_from_user_policy_type(&type, attrs);
if (err)
return err;
- err = copy_from_user_migrate((struct xfrm_migrate *)m,
- attrs, &n);
+ err = copy_from_user_migrate((struct xfrm_migrate *)m, kmp, attrs, &n);
if (err)
return err;
if (!n)
return 0;
- xfrm_migrate(&pi->sel, pi->dir, type, m, n);
+ xfrm_migrate(&pi->sel, pi->dir, type, m, n, kmp);
return 0;
}
return nla_put(skb, XFRMA_MIGRATE, sizeof(um), &um);
}
-static inline size_t xfrm_migrate_msgsize(int num_migrate)
+static int copy_to_user_kmaddress(struct xfrm_kmaddress *k, struct sk_buff *skb)
+{
+ struct xfrm_user_kmaddress uk;
+
+ memset(&uk, 0, sizeof(uk));
+ uk.family = k->family;
+ uk.reserved = k->reserved;
+ memcpy(&uk.local, &k->local, sizeof(uk.local));
+ memcpy(&uk.remote, &k->remote, sizeof(uk.remote));
+
+ return nla_put(skb, XFRMA_KMADDRESS, sizeof(uk), &uk);
+}
+
+static inline size_t xfrm_migrate_msgsize(int num_migrate, int with_kma)
{
return NLMSG_ALIGN(sizeof(struct xfrm_userpolicy_id))
- + nla_total_size(sizeof(struct xfrm_user_migrate) * num_migrate)
- + userpolicy_type_attrsize();
+ + (with_kma ? nla_total_size(sizeof(struct xfrm_kmaddress)) : 0)
+ + nla_total_size(sizeof(struct xfrm_user_migrate) * num_migrate)
+ + userpolicy_type_attrsize();
}
static int build_migrate(struct sk_buff *skb, struct xfrm_migrate *m,
- int num_migrate, struct xfrm_selector *sel,
- u8 dir, u8 type)
+ int num_migrate, struct xfrm_kmaddress *k,
+ struct xfrm_selector *sel, u8 dir, u8 type)
{
struct xfrm_migrate *mp;
struct xfrm_userpolicy_id *pol_id;
memcpy(&pol_id->sel, sel, sizeof(pol_id->sel));
pol_id->dir = dir;
+ if (k != NULL && (copy_to_user_kmaddress(k, skb) < 0))
+ goto nlmsg_failure;
+
if (copy_to_user_policy_type(type, skb) < 0)
goto nlmsg_failure;
}
static int xfrm_send_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
- struct xfrm_migrate *m, int num_migrate)
+ struct xfrm_migrate *m, int num_migrate,
+ struct xfrm_kmaddress *k)
{
+ struct net *net = &init_net;
struct sk_buff *skb;
- skb = nlmsg_new(xfrm_migrate_msgsize(num_migrate), GFP_ATOMIC);
+ skb = nlmsg_new(xfrm_migrate_msgsize(num_migrate, !!k), GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
/* build migrate */
- if (build_migrate(skb, m, num_migrate, sel, dir, type) < 0)
+ if (build_migrate(skb, m, num_migrate, k, sel, dir, type) < 0)
BUG();
- return nlmsg_multicast(xfrm_nl, skb, 0, XFRMNLGRP_MIGRATE, GFP_ATOMIC);
+ return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_MIGRATE, GFP_ATOMIC);
}
#else
static int xfrm_send_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
- struct xfrm_migrate *m, int num_migrate)
+ struct xfrm_migrate *m, int num_migrate,
+ struct xfrm_kmaddress *k)
{
return -ENOPROTOOPT;
}
[XFRMA_COADDR] = { .len = sizeof(xfrm_address_t) },
[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) },
};
static struct xfrm_link {
static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
+ struct net *net = sock_net(skb->sk);
struct nlattr *attrs[XFRMA_MAX+1];
struct xfrm_link *link;
int type, err;
if (link->dump == NULL)
return -EINVAL;
- return netlink_dump_start(xfrm_nl, skb, nlh, link->dump, link->done);
+ return netlink_dump_start(net->xfrm.nlsk, skb, nlh, link->dump, link->done);
}
err = nlmsg_parse(nlh, xfrm_msg_min[type], attrs, XFRMA_MAX,
static int xfrm_exp_state_notify(struct xfrm_state *x, struct km_event *c)
{
+ struct net *net = xs_net(x);
struct sk_buff *skb;
skb = nlmsg_new(xfrm_expire_msgsize(), GFP_ATOMIC);
if (build_expire(skb, x, c) < 0)
BUG();
- return nlmsg_multicast(xfrm_nl, skb, 0, XFRMNLGRP_EXPIRE, GFP_ATOMIC);
+ return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_EXPIRE, GFP_ATOMIC);
}
static int xfrm_aevent_state_notify(struct xfrm_state *x, struct km_event *c)
{
+ struct net *net = xs_net(x);
struct sk_buff *skb;
skb = nlmsg_new(xfrm_aevent_msgsize(), GFP_ATOMIC);
if (build_aevent(skb, x, c) < 0)
BUG();
- return nlmsg_multicast(xfrm_nl, skb, 0, XFRMNLGRP_AEVENTS, GFP_ATOMIC);
+ return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_AEVENTS, GFP_ATOMIC);
}
static int xfrm_notify_sa_flush(struct km_event *c)
{
+ struct net *net = c->net;
struct xfrm_usersa_flush *p;
struct nlmsghdr *nlh;
struct sk_buff *skb;
nlmsg_end(skb, nlh);
- return nlmsg_multicast(xfrm_nl, skb, 0, XFRMNLGRP_SA, GFP_ATOMIC);
+ return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_SA, GFP_ATOMIC);
}
static inline size_t xfrm_sa_len(struct xfrm_state *x)
static int xfrm_notify_sa(struct xfrm_state *x, struct km_event *c)
{
+ struct net *net = xs_net(x);
struct xfrm_usersa_info *p;
struct xfrm_usersa_id *id;
struct nlmsghdr *nlh;
nlmsg_end(skb, nlh);
- return nlmsg_multicast(xfrm_nl, skb, 0, XFRMNLGRP_SA, GFP_ATOMIC);
+ return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_SA, GFP_ATOMIC);
nla_put_failure:
/* Somebody screwed up with xfrm_sa_len! */
static int xfrm_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *xt,
struct xfrm_policy *xp, int dir)
{
+ struct net *net = xs_net(x);
struct sk_buff *skb;
skb = nlmsg_new(xfrm_acquire_msgsize(x, xp), GFP_ATOMIC);
if (build_acquire(skb, x, xt, xp, dir) < 0)
BUG();
- return nlmsg_multicast(xfrm_nl, skb, 0, XFRMNLGRP_ACQUIRE, GFP_ATOMIC);
+ return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_ACQUIRE, GFP_ATOMIC);
}
/* User gives us xfrm_user_policy_info followed by an array of 0
static struct xfrm_policy *xfrm_compile_policy(struct sock *sk, int opt,
u8 *data, int len, int *dir)
{
+ struct net *net = sock_net(sk);
struct xfrm_userpolicy_info *p = (struct xfrm_userpolicy_info *)data;
struct xfrm_user_tmpl *ut = (struct xfrm_user_tmpl *) (p + 1);
struct xfrm_policy *xp;
if (p->dir > XFRM_POLICY_OUT)
return NULL;
- xp = xfrm_policy_alloc(GFP_KERNEL);
+ xp = xfrm_policy_alloc(net, GFP_KERNEL);
if (xp == NULL) {
*dir = -ENOBUFS;
return NULL;
static int xfrm_exp_policy_notify(struct xfrm_policy *xp, int dir, struct km_event *c)
{
+ struct net *net = xp_net(xp);
struct sk_buff *skb;
skb = nlmsg_new(xfrm_polexpire_msgsize(xp), GFP_ATOMIC);
if (build_polexpire(skb, xp, dir, c) < 0)
BUG();
- return nlmsg_multicast(xfrm_nl, skb, 0, XFRMNLGRP_EXPIRE, GFP_ATOMIC);
+ return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_EXPIRE, GFP_ATOMIC);
}
static int xfrm_notify_policy(struct xfrm_policy *xp, int dir, struct km_event *c)
{
+ struct net *net = xp_net(xp);
struct xfrm_userpolicy_info *p;
struct xfrm_userpolicy_id *id;
struct nlmsghdr *nlh;
nlmsg_end(skb, nlh);
- return nlmsg_multicast(xfrm_nl, skb, 0, XFRMNLGRP_POLICY, GFP_ATOMIC);
+ return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_POLICY, GFP_ATOMIC);
nlmsg_failure:
kfree_skb(skb);
static int xfrm_notify_policy_flush(struct km_event *c)
{
+ struct net *net = c->net;
struct nlmsghdr *nlh;
struct sk_buff *skb;
nlmsg_end(skb, nlh);
- return nlmsg_multicast(xfrm_nl, skb, 0, XFRMNLGRP_POLICY, GFP_ATOMIC);
+ return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_POLICY, GFP_ATOMIC);
nlmsg_failure:
kfree_skb(skb);
return -EMSGSIZE;
}
-static int xfrm_send_report(u8 proto, struct xfrm_selector *sel,
- xfrm_address_t *addr)
+static int xfrm_send_report(struct net *net, u8 proto,
+ struct xfrm_selector *sel, xfrm_address_t *addr)
{
struct sk_buff *skb;
if (build_report(skb, proto, sel, addr) < 0)
BUG();
- return nlmsg_multicast(xfrm_nl, skb, 0, XFRMNLGRP_REPORT, GFP_ATOMIC);
+ return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_REPORT, GFP_ATOMIC);
+}
+
+static inline size_t xfrm_mapping_msgsize(void)
+{
+ return NLMSG_ALIGN(sizeof(struct xfrm_user_mapping));
+}
+
+static int build_mapping(struct sk_buff *skb, struct xfrm_state *x,
+ xfrm_address_t *new_saddr, __be16 new_sport)
+{
+ struct xfrm_user_mapping *um;
+ struct nlmsghdr *nlh;
+
+ nlh = nlmsg_put(skb, 0, 0, XFRM_MSG_MAPPING, sizeof(*um), 0);
+ if (nlh == NULL)
+ return -EMSGSIZE;
+
+ um = nlmsg_data(nlh);
+
+ memcpy(&um->id.daddr, &x->id.daddr, sizeof(um->id.daddr));
+ um->id.spi = x->id.spi;
+ um->id.family = x->props.family;
+ um->id.proto = x->id.proto;
+ memcpy(&um->new_saddr, new_saddr, sizeof(um->new_saddr));
+ memcpy(&um->old_saddr, &x->props.saddr, sizeof(um->old_saddr));
+ um->new_sport = new_sport;
+ um->old_sport = x->encap->encap_sport;
+ um->reqid = x->props.reqid;
+
+ return nlmsg_end(skb, nlh);
+}
+
+static int xfrm_send_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr,
+ __be16 sport)
+{
+ struct net *net = xs_net(x);
+ struct sk_buff *skb;
+
+ if (x->id.proto != IPPROTO_ESP)
+ return -EINVAL;
+
+ if (!x->encap)
+ return -EINVAL;
+
+ skb = nlmsg_new(xfrm_mapping_msgsize(), GFP_ATOMIC);
+ if (skb == NULL)
+ return -ENOMEM;
+
+ if (build_mapping(skb, x, ipaddr, sport) < 0)
+ BUG();
+
+ return nlmsg_multicast(net->xfrm.nlsk, skb, 0, XFRMNLGRP_MAPPING, GFP_ATOMIC);
}
static struct xfrm_mgr netlink_mgr = {
.notify_policy = xfrm_send_policy_notify,
.report = xfrm_send_report,
.migrate = xfrm_send_migrate,
+ .new_mapping = xfrm_send_mapping,
};
-static int __init xfrm_user_init(void)
+static int __net_init xfrm_user_net_init(struct net *net)
{
struct sock *nlsk;
- printk(KERN_INFO "Initializing XFRM netlink socket\n");
-
- nlsk = netlink_kernel_create(&init_net, NETLINK_XFRM, XFRMNLGRP_MAX,
+ nlsk = netlink_kernel_create(net, NETLINK_XFRM, XFRMNLGRP_MAX,
xfrm_netlink_rcv, NULL, THIS_MODULE);
if (nlsk == NULL)
return -ENOMEM;
- rcu_assign_pointer(xfrm_nl, nlsk);
-
- xfrm_register_km(&netlink_mgr);
-
+ rcu_assign_pointer(net->xfrm.nlsk, nlsk);
return 0;
}
-static void __exit xfrm_user_exit(void)
+static void __net_exit xfrm_user_net_exit(struct net *net)
{
- struct sock *nlsk = xfrm_nl;
+ struct sock *nlsk = net->xfrm.nlsk;
- xfrm_unregister_km(&netlink_mgr);
- rcu_assign_pointer(xfrm_nl, NULL);
+ rcu_assign_pointer(net->xfrm.nlsk, NULL);
synchronize_rcu();
netlink_kernel_release(nlsk);
}
+static struct pernet_operations xfrm_user_net_ops = {
+ .init = xfrm_user_net_init,
+ .exit = xfrm_user_net_exit,
+};
+
+static int __init xfrm_user_init(void)
+{
+ int rv;
+
+ printk(KERN_INFO "Initializing XFRM netlink socket\n");
+
+ rv = register_pernet_subsys(&xfrm_user_net_ops);
+ if (rv < 0)
+ return rv;
+ rv = xfrm_register_km(&netlink_mgr);
+ if (rv < 0)
+ unregister_pernet_subsys(&xfrm_user_net_ops);
+ return rv;
+}
+
+static void __exit xfrm_user_exit(void)
+{
+ xfrm_unregister_km(&netlink_mgr);
+ unregister_pernet_subsys(&xfrm_user_net_ops);
+}
+
module_init(xfrm_user_init);
module_exit(xfrm_user_exit);
MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff