#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
#include <linux/in6.h>
#endif
+#include <linux/audit.h>
static int verify_one_alg(struct rtattr **xfrma, enum xfrm_attr_type_t type)
{
algp = RTA_DATA(rt);
- len -= (algp->alg_key_len + 7U) / 8;
+ len -= (algp->alg_key_len + 7U) / 8;
if (len < 0)
return -EINVAL;
default:
return -EINVAL;
- };
+ }
algp->alg_name[CRYPTO_MAX_ALG_NAME - 1] = '\0';
return 0;
default:
goto out;
- };
+ }
err = -EINVAL;
switch (p->id.proto) {
default:
goto out;
- };
+ }
if ((err = verify_one_alg(xfrma, XFRMA_ALG_AUTH)))
goto out;
default:
goto out;
- };
+ }
err = 0;
*props = algo->desc.sadb_alg_id;
len = sizeof(*ualg) + (ualg->alg_key_len + 7U) / 8;
- p = kmalloc(len, GFP_KERNEL);
+ p = kmemdup(ualg, len, GFP_KERNEL);
if (!p)
return -ENOMEM;
- memcpy(p, ualg, len);
strcpy(p->alg_name, algo->name);
*algpp = p;
return 0;
return 0;
uencap = RTA_DATA(rta);
- p = kmalloc(sizeof(*p), GFP_KERNEL);
+ p = kmemdup(uencap, sizeof(*p), GFP_KERNEL);
if (!p)
return -ENOMEM;
- memcpy(p, uencap, sizeof(*p));
*encapp = p;
return 0;
}
-static inline int xfrm_user_sec_ctx_size(struct xfrm_policy *xp)
+static inline int xfrm_user_sec_ctx_size(struct xfrm_sec_ctx *xfrm_ctx)
{
- struct xfrm_sec_ctx *xfrm_ctx = xp->security;
int len = 0;
if (xfrm_ctx) {
return 0;
uaddrp = RTA_DATA(rta);
- p = kmalloc(sizeof(*p), GFP_KERNEL);
+ p = kmemdup(uaddrp, sizeof(*p), GFP_KERNEL);
if (!p)
return -ENOMEM;
- memcpy(p, uaddrp, sizeof(*p));
*addrpp = p;
return 0;
}
x->props.replay_window = p->replay_window;
x->props.reqid = p->reqid;
x->props.family = p->family;
- x->props.saddr = p->saddr;
+ memcpy(&x->props.saddr, &p->saddr, sizeof(x->props.saddr));
x->props.flags = p->flags;
}
return NULL;
}
-static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct xfrm_usersa_info *p = NLMSG_DATA(nlh);
struct xfrm_state *x;
int err;
struct km_event c;
- err = verify_newsa_info(p, (struct rtattr **)xfrma);
+ err = verify_newsa_info(p, xfrma);
if (err)
return err;
- x = xfrm_state_construct(p, (struct rtattr **)xfrma, &err);
+ x = xfrm_state_construct(p, xfrma, &err);
if (!x)
return err;
else
err = xfrm_state_update(x);
+ xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
+ AUDIT_MAC_IPSEC_ADDSA, err ? 0 : 1, NULL, x);
+
if (err < 0) {
x->km.state = XFRM_STATE_DEAD;
__xfrm_state_put(x);
goto out;
}
+ err = -ESRCH;
x = xfrm_state_lookup_byaddr(&p->daddr, saddr, p->proto,
p->family);
}
return x;
}
-static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct xfrm_state *x;
int err = -ESRCH;
struct km_event c;
struct xfrm_usersa_id *p = NLMSG_DATA(nlh);
- x = xfrm_user_state_lookup(p, (struct rtattr **)xfrma, &err);
+ x = xfrm_user_state_lookup(p, xfrma, &err);
if (x == NULL)
return err;
}
err = xfrm_state_delete(x);
+
if (err < 0)
goto out;
km_state_notify(x, &c);
out:
+ xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
+ AUDIT_MAC_IPSEC_DELSA, err ? 0 : 1, NULL, x);
xfrm_state_put(x);
return err;
}
memcpy(&p->lft, &x->lft, sizeof(p->lft));
memcpy(&p->curlft, &x->curlft, sizeof(p->curlft));
memcpy(&p->stats, &x->stats, sizeof(p->stats));
- p->saddr = x->props.saddr;
+ memcpy(&p->saddr, &x->props.saddr, sizeof(p->saddr));
p->mode = x->props.mode;
p->replay_window = x->props.replay_window;
p->reqid = x->props.reqid;
struct sk_buff *skb = sp->out_skb;
struct xfrm_usersa_info *p;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
if (sp->this_idx < sp->start_idx)
goto out;
if (x->lastused)
RTA_PUT(skb, XFRMA_LASTUSED, sizeof(x->lastused), &x->lastused);
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
out:
sp->this_idx++;
return 0;
nlmsg_failure:
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
if (!skb)
return ERR_PTR(-ENOMEM);
- NETLINK_CB(skb).dst_pid = NETLINK_CB(in_skb).pid;
info.in_skb = in_skb;
info.out_skb = skb;
info.nlmsg_seq = seq;
return skb;
}
-static int xfrm_get_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int build_spdinfo(struct sk_buff *skb, u32 pid, u32 seq, u32 flags)
+{
+ struct xfrmk_spdinfo si;
+ struct xfrmu_spdinfo spc;
+ struct xfrmu_spdhinfo sph;
+ struct nlmsghdr *nlh;
+ u32 *f;
+
+ nlh = nlmsg_put(skb, pid, seq, XFRM_MSG_NEWSPDINFO, sizeof(u32), 0);
+ if (nlh == NULL) /* shouldnt really happen ... */
+ return -EMSGSIZE;
+
+ f = nlmsg_data(nlh);
+ *f = flags;
+ xfrm_spd_getinfo(&si);
+ spc.incnt = si.incnt;
+ spc.outcnt = si.outcnt;
+ spc.fwdcnt = si.fwdcnt;
+ spc.inscnt = si.inscnt;
+ spc.outscnt = si.outscnt;
+ spc.fwdscnt = si.fwdscnt;
+ sph.spdhcnt = si.spdhcnt;
+ sph.spdhmcnt = si.spdhmcnt;
+
+ NLA_PUT(skb, XFRMA_SPD_INFO, sizeof(spc), &spc);
+ NLA_PUT(skb, XFRMA_SPD_HINFO, sizeof(sph), &sph);
+
+ return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+ nlmsg_cancel(skb, nlh);
+ return -EMSGSIZE;
+}
+
+static int xfrm_get_spdinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
+{
+ struct sk_buff *r_skb;
+ u32 *flags = NLMSG_DATA(nlh);
+ u32 spid = NETLINK_CB(skb).pid;
+ u32 seq = nlh->nlmsg_seq;
+ int len = NLMSG_LENGTH(sizeof(u32));
+
+ len += RTA_SPACE(sizeof(struct xfrmu_spdinfo));
+ len += RTA_SPACE(sizeof(struct xfrmu_spdhinfo));
+
+ r_skb = alloc_skb(len, GFP_ATOMIC);
+ if (r_skb == NULL)
+ return -ENOMEM;
+
+ if (build_spdinfo(r_skb, spid, seq, *flags) < 0)
+ BUG();
+
+ return nlmsg_unicast(xfrm_nl, r_skb, spid);
+}
+
+static int build_sadinfo(struct sk_buff *skb, u32 pid, u32 seq, u32 flags)
+{
+ struct xfrmk_sadinfo si;
+ struct xfrmu_sadhinfo sh;
+ struct nlmsghdr *nlh;
+ u32 *f;
+
+ nlh = nlmsg_put(skb, pid, seq, XFRM_MSG_NEWSADINFO, sizeof(u32), 0);
+ if (nlh == NULL) /* shouldnt really happen ... */
+ return -EMSGSIZE;
+
+ f = nlmsg_data(nlh);
+ *f = flags;
+ xfrm_sad_getinfo(&si);
+
+ sh.sadhmcnt = si.sadhmcnt;
+ sh.sadhcnt = si.sadhcnt;
+
+ NLA_PUT_U32(skb, XFRMA_SAD_CNT, si.sadcnt);
+ NLA_PUT(skb, XFRMA_SAD_HINFO, sizeof(sh), &sh);
+
+ return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+ nlmsg_cancel(skb, nlh);
+ return -EMSGSIZE;
+}
+
+static int xfrm_get_sadinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
+{
+ struct sk_buff *r_skb;
+ u32 *flags = NLMSG_DATA(nlh);
+ u32 spid = NETLINK_CB(skb).pid;
+ u32 seq = nlh->nlmsg_seq;
+ int len = NLMSG_LENGTH(sizeof(u32));
+
+ len += RTA_SPACE(sizeof(struct xfrmu_sadhinfo));
+ len += RTA_SPACE(sizeof(u32));
+
+ r_skb = alloc_skb(len, GFP_ATOMIC);
+
+ if (r_skb == NULL)
+ return -ENOMEM;
+
+ if (build_sadinfo(r_skb, spid, seq, *flags) < 0)
+ BUG();
+
+ return nlmsg_unicast(xfrm_nl, r_skb, spid);
+}
+
+static int xfrm_get_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
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, (struct rtattr **)xfrma, &err);
+ x = xfrm_user_state_lookup(p, xfrma, &err);
if (x == NULL)
goto out_noput;
default:
return -EINVAL;
- };
+ }
if (p->min > p->max)
return -EINVAL;
return 0;
}
-static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct xfrm_state *x;
struct xfrm_userspi_info *p;
return err;
}
-static int verify_policy_dir(__u8 dir)
+static int verify_policy_dir(u8 dir)
{
switch (dir) {
case XFRM_POLICY_IN:
default:
return -EINVAL;
- };
+ }
return 0;
}
-static int verify_policy_type(__u8 type)
+static int verify_policy_type(u8 type)
{
switch (type) {
case XFRM_POLICY_TYPE_MAIN:
default:
return -EINVAL;
- };
+ }
return 0;
}
default:
return -EINVAL;
- };
+ }
switch (p->action) {
case XFRM_POLICY_ALLOW:
default:
return -EINVAL;
- };
+ }
switch (p->sel.family) {
case AF_INET:
default:
return -EINVAL;
- };
+ }
return verify_policy_dir(p->dir);
}
t->aalgos = ut->aalgos;
t->ealgos = ut->ealgos;
t->calgos = ut->calgos;
+ t->encap_family = ut->family;
}
}
+static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family)
+{
+ int i;
+
+ if (nr > XFRM_MAX_DEPTH)
+ return -EINVAL;
+
+ for (i = 0; i < nr; i++) {
+ /* We never validated the ut->family value, so many
+ * applications simply leave it at zero. The check was
+ * never made and ut->family was ignored because all
+ * templates could be assumed to have the same family as
+ * the policy itself. Now that we will have ipv4-in-ipv6
+ * and ipv6-in-ipv4 tunnels, this is no longer true.
+ */
+ if (!ut[i].family)
+ ut[i].family = family;
+
+ switch (ut[i].family) {
+ case AF_INET:
+ break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ case AF_INET6:
+ break;
+#endif
+ default:
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
static int copy_from_user_tmpl(struct xfrm_policy *pol, struct rtattr **xfrma)
{
struct rtattr *rt = xfrma[XFRMA_TMPL-1];
- struct xfrm_user_tmpl *utmpl;
- int nr;
if (!rt) {
pol->xfrm_nr = 0;
} else {
- nr = (rt->rta_len - sizeof(*rt)) / sizeof(*utmpl);
+ struct xfrm_user_tmpl *utmpl = RTA_DATA(rt);
+ int nr = (rt->rta_len - sizeof(*rt)) / sizeof(*utmpl);
+ int err;
- if (nr > XFRM_MAX_DEPTH)
- return -EINVAL;
+ err = validate_tmpl(nr, utmpl, pol->family);
+ if (err)
+ return err;
copy_templates(pol, RTA_DATA(rt), nr);
}
{
struct rtattr *rt = xfrma[XFRMA_POLICY_TYPE-1];
struct xfrm_userpolicy_type *upt;
- __u8 type = XFRM_POLICY_TYPE_MAIN;
+ u8 type = XFRM_POLICY_TYPE_MAIN;
int err;
if (rt) {
return NULL;
}
-static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct xfrm_userpolicy_info *p = NLMSG_DATA(nlh);
struct xfrm_policy *xp;
err = verify_newpolicy_info(p);
if (err)
return err;
- err = verify_sec_ctx_len((struct rtattr **)xfrma);
+ err = verify_sec_ctx_len(xfrma);
if (err)
return err;
- xp = xfrm_policy_construct(p, (struct rtattr **)xfrma, &err);
+ xp = xfrm_policy_construct(p, xfrma, &err);
if (!xp)
return err;
* a type XFRM_MSG_UPDPOLICY - JHS */
excl = nlh->nlmsg_type == XFRM_MSG_NEWPOLICY;
err = xfrm_policy_insert(p->dir, xp, excl);
+ xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
+ AUDIT_MAC_IPSEC_DELSPD, err ? 0 : 1, xp, NULL);
+
if (err) {
security_xfrm_policy_free(xp);
kfree(xp);
struct xfrm_tmpl *kp = &xp->xfrm_vec[i];
memcpy(&up->id, &kp->id, sizeof(up->id));
- up->family = xp->family;
+ up->family = kp->encap_family;
memcpy(&up->saddr, &kp->saddr, sizeof(up->saddr));
up->reqid = kp->reqid;
up->mode = kp->mode;
uctx->ctx_alg = s->ctx_alg;
uctx->ctx_len = s->ctx_len;
memcpy(uctx + 1, s->ctx_str, s->ctx_len);
- return 0;
+ return 0;
rtattr_failure:
return -1;
}
#ifdef CONFIG_XFRM_SUB_POLICY
-static int copy_to_user_policy_type(struct xfrm_policy *xp, struct sk_buff *skb)
+static int copy_to_user_policy_type(u8 type, struct sk_buff *skb)
{
struct xfrm_userpolicy_type upt;
memset(&upt, 0, sizeof(upt));
- upt.type = xp->type;
+ upt.type = type;
RTA_PUT(skb, XFRMA_POLICY_TYPE, sizeof(upt), &upt);
}
#else
-static inline int copy_to_user_policy_type(struct xfrm_policy *xp, struct sk_buff *skb)
+static inline int copy_to_user_policy_type(u8 type, struct sk_buff *skb)
{
return 0;
}
struct sk_buff *in_skb = sp->in_skb;
struct sk_buff *skb = sp->out_skb;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
if (sp->this_idx < sp->start_idx)
goto out;
goto nlmsg_failure;
if (copy_to_user_sec_ctx(xp, skb))
goto nlmsg_failure;
- if (copy_to_user_policy_type(xp, skb) < 0)
+ if (copy_to_user_policy_type(xp->type, skb) < 0)
goto nlmsg_failure;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
out:
sp->this_idx++;
return 0;
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
if (!skb)
return ERR_PTR(-ENOMEM);
- NETLINK_CB(skb).dst_pid = NETLINK_CB(in_skb).pid;
info.in_skb = in_skb;
info.out_skb = skb;
info.nlmsg_seq = seq;
return skb;
}
-static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct xfrm_policy *xp;
struct xfrm_userpolicy_id *p;
- __u8 type = XFRM_POLICY_TYPE_MAIN;
+ u8 type = XFRM_POLICY_TYPE_MAIN;
int err;
struct km_event c;
int delete;
p = NLMSG_DATA(nlh);
delete = nlh->nlmsg_type == XFRM_MSG_DELPOLICY;
- err = copy_from_user_policy_type(&type, (struct rtattr **)xfrma);
+ err = copy_from_user_policy_type(&type, xfrma);
if (err)
return err;
return err;
if (p->index)
- xp = xfrm_policy_byid(type, p->dir, p->index, delete);
+ xp = xfrm_policy_byid(type, p->dir, p->index, delete, &err);
else {
- struct rtattr **rtattrs = (struct rtattr **)xfrma;
- struct rtattr *rt = rtattrs[XFRMA_SEC_CTX-1];
+ struct rtattr *rt = xfrma[XFRMA_SEC_CTX-1];
struct xfrm_policy tmp;
- err = verify_sec_ctx_len(rtattrs);
+ err = verify_sec_ctx_len(xfrma);
if (err)
return err;
if ((err = security_xfrm_policy_alloc(&tmp, uctx)))
return err;
}
- xp = xfrm_policy_bysel_ctx(type, p->dir, &p->sel, tmp.security, delete);
+ xp = xfrm_policy_bysel_ctx(type, p->dir, &p->sel, tmp.security,
+ delete, &err);
security_xfrm_policy_free(&tmp);
}
if (xp == NULL)
MSG_DONTWAIT);
}
} else {
- if ((err = security_xfrm_policy_delete(xp)) != 0)
+ xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
+ AUDIT_MAC_IPSEC_DELSPD, err ? 0 : 1, xp, NULL);
+
+ if (err != 0)
goto out;
+
c.data.byid = p->index;
c.event = nlh->nlmsg_type;
c.seq = nlh->nlmsg_seq;
km_policy_notify(xp, p->dir, &c);
}
- xfrm_pol_put(xp);
-
out:
+ xfrm_pol_put(xp);
return err;
}
-static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct km_event c;
struct xfrm_usersa_flush *p = NLMSG_DATA(nlh);
+ struct xfrm_audit audit_info;
+ int err;
- xfrm_state_flush(p->proto);
+ audit_info.loginuid = NETLINK_CB(skb).loginuid;
+ audit_info.secid = NETLINK_CB(skb).sid;
+ err = xfrm_state_flush(p->proto, &audit_info);
+ if (err)
+ return err;
c.data.proto = p->proto;
c.event = nlh->nlmsg_type;
c.seq = nlh->nlmsg_seq;
struct xfrm_aevent_id *id;
struct nlmsghdr *nlh;
struct xfrm_lifetime_cur ltime;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
nlh = NLMSG_PUT(skb, c->pid, c->seq, XFRM_MSG_NEWAE, sizeof(*id));
id = NLMSG_DATA(nlh);
nlh->nlmsg_flags = 0;
- id->sa_id.daddr = x->id.daddr;
+ memcpy(&id->sa_id.daddr, &x->id.daddr,sizeof(x->id.daddr));
id->sa_id.spi = x->id.spi;
id->sa_id.family = x->props.family;
id->sa_id.proto = x->id.proto;
+ memcpy(&id->saddr, &x->props.saddr,sizeof(x->props.saddr));
+ id->reqid = x->props.reqid;
id->flags = c->data.aevent;
RTA_PUT(skb, XFRMA_REPLAY_VAL, sizeof(x->replay), &x->replay);
RTA_PUT(skb,XFRMA_ETIMER_THRESH,sizeof(u32),&etimer);
}
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
-static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_get_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct xfrm_state *x;
struct sk_buff *r_skb;
x = xfrm_state_lookup(&id->daddr, id->spi, id->proto, id->family);
if (x == NULL) {
- kfree(r_skb);
+ kfree_skb(r_skb);
return -ESRCH;
}
return err;
}
-static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct xfrm_state *x;
struct km_event c;
goto out;
spin_lock_bh(&x->lock);
- err = xfrm_update_ae_params(x,(struct rtattr **)xfrma);
+ err = xfrm_update_ae_params(x, xfrma);
spin_unlock_bh(&x->lock);
if (err < 0)
goto out;
return err;
}
-static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct km_event c;
- __u8 type = XFRM_POLICY_TYPE_MAIN;
+ u8 type = XFRM_POLICY_TYPE_MAIN;
int err;
+ struct xfrm_audit audit_info;
- err = copy_from_user_policy_type(&type, (struct rtattr **)xfrma);
+ err = copy_from_user_policy_type(&type, xfrma);
if (err)
return err;
- xfrm_policy_flush(type);
+ audit_info.loginuid = NETLINK_CB(skb).loginuid;
+ audit_info.secid = NETLINK_CB(skb).sid;
+ err = xfrm_policy_flush(type, &audit_info);
+ if (err)
+ return err;
c.data.type = type;
c.event = nlh->nlmsg_type;
c.seq = nlh->nlmsg_seq;
return 0;
}
-static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct xfrm_policy *xp;
struct xfrm_user_polexpire *up = NLMSG_DATA(nlh);
struct xfrm_userpolicy_info *p = &up->pol;
- __u8 type = XFRM_POLICY_TYPE_MAIN;
+ u8 type = XFRM_POLICY_TYPE_MAIN;
int err = -ENOENT;
- err = copy_from_user_policy_type(&type, (struct rtattr **)xfrma);
+ err = copy_from_user_policy_type(&type, xfrma);
if (err)
return err;
if (p->index)
- xp = xfrm_policy_byid(type, p->dir, p->index, 0);
+ xp = xfrm_policy_byid(type, p->dir, p->index, 0, &err);
else {
- struct rtattr **rtattrs = (struct rtattr **)xfrma;
- struct rtattr *rt = rtattrs[XFRMA_SEC_CTX-1];
+ struct rtattr *rt = xfrma[XFRMA_SEC_CTX-1];
struct xfrm_policy tmp;
- err = verify_sec_ctx_len(rtattrs);
+ err = verify_sec_ctx_len(xfrma);
if (err)
return err;
if ((err = security_xfrm_policy_alloc(&tmp, uctx)))
return err;
}
- xp = xfrm_policy_bysel_ctx(type, p->dir, &p->sel, tmp.security, 0);
+ xp = xfrm_policy_bysel_ctx(type, p->dir, &p->sel, tmp.security,
+ 0, &err);
security_xfrm_policy_free(&tmp);
}
if (xp == NULL)
- return err;
- read_lock(&xp->lock);
+ return -ENOENT;
+ read_lock(&xp->lock);
if (xp->dead) {
read_unlock(&xp->lock);
goto out;
err = 0;
if (up->hard) {
xfrm_policy_delete(xp, p->dir);
+ xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
+ AUDIT_MAC_IPSEC_DELSPD, 1, xp, NULL);
+
} else {
// reset the timers here?
printk("Dont know what to do with soft policy expire\n");
return err;
}
-static int xfrm_add_sa_expire(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_add_sa_expire(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct xfrm_state *x;
int err;
struct xfrm_usersa_info *p = &ue->state;
x = xfrm_state_lookup(&p->id.daddr, p->id.spi, p->id.proto, p->family);
- err = -ENOENT;
+ err = -ENOENT;
if (x == NULL)
return err;
- err = -EINVAL;
-
spin_lock_bh(&x->lock);
+ err = -EINVAL;
if (x->km.state != XFRM_STATE_VALID)
goto out;
km_state_expired(x, ue->hard, current->pid);
- if (ue->hard)
+ if (ue->hard) {
__xfrm_state_delete(x);
+ xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
+ AUDIT_MAC_IPSEC_DELSA, 1, NULL, x);
+ }
+ err = 0;
out:
spin_unlock_bh(&x->lock);
xfrm_state_put(x);
return err;
}
-static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
+static int xfrm_add_acquire(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
{
struct xfrm_policy *xp;
struct xfrm_user_tmpl *ut;
}
/* build an XP */
- xp = xfrm_policy_construct(&ua->policy, (struct rtattr **) xfrma, &err); if (!xp) {
+ xp = xfrm_policy_construct(&ua->policy, (struct rtattr **) xfrma, &err);
+ if (!xp) {
kfree(x);
return err;
}
return 0;
}
+#ifdef CONFIG_XFRM_MIGRATE
+static int verify_user_migrate(struct rtattr **xfrma)
+{
+ struct rtattr *rt = xfrma[XFRMA_MIGRATE-1];
+ struct xfrm_user_migrate *um;
+
+ if (!rt)
+ return -EINVAL;
+
+ if ((rt->rta_len - sizeof(*rt)) < sizeof(*um))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int copy_from_user_migrate(struct xfrm_migrate *ma,
+ struct rtattr **xfrma, int *num)
+{
+ struct rtattr *rt = xfrma[XFRMA_MIGRATE-1];
+ struct xfrm_user_migrate *um;
+ int i, num_migrate;
+
+ um = RTA_DATA(rt);
+ num_migrate = (rt->rta_len - sizeof(*rt)) / sizeof(*um);
+
+ if (num_migrate <= 0 || num_migrate > XFRM_MAX_DEPTH)
+ return -EINVAL;
+
+ for (i = 0; i < num_migrate; i++, um++, ma++) {
+ memcpy(&ma->old_daddr, &um->old_daddr, sizeof(ma->old_daddr));
+ memcpy(&ma->old_saddr, &um->old_saddr, sizeof(ma->old_saddr));
+ memcpy(&ma->new_daddr, &um->new_daddr, sizeof(ma->new_daddr));
+ memcpy(&ma->new_saddr, &um->new_saddr, sizeof(ma->new_saddr));
+
+ ma->proto = um->proto;
+ ma->mode = um->mode;
+ ma->reqid = um->reqid;
+
+ ma->old_family = um->old_family;
+ ma->new_family = um->new_family;
+ }
+
+ *num = i;
+ return 0;
+}
+
+static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
+{
+ struct xfrm_userpolicy_id *pi = NLMSG_DATA(nlh);
+ struct xfrm_migrate m[XFRM_MAX_DEPTH];
+ u8 type;
+ int err;
+ int n = 0;
+
+ err = verify_user_migrate((struct rtattr **)xfrma);
+ if (err)
+ return err;
+
+ err = copy_from_user_policy_type(&type, (struct rtattr **)xfrma);
+ if (err)
+ return err;
+
+ err = copy_from_user_migrate((struct xfrm_migrate *)m,
+ (struct rtattr **)xfrma, &n);
+ if (err)
+ return err;
+
+ if (!n)
+ return 0;
+
+ xfrm_migrate(&pi->sel, pi->dir, type, m, n);
+
+ return 0;
+}
+#else
+static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
+{
+ return -ENOPROTOOPT;
+}
+#endif
+
+#ifdef CONFIG_XFRM_MIGRATE
+static int copy_to_user_migrate(struct xfrm_migrate *m, struct sk_buff *skb)
+{
+ struct xfrm_user_migrate um;
+
+ memset(&um, 0, sizeof(um));
+ um.proto = m->proto;
+ um.mode = m->mode;
+ um.reqid = m->reqid;
+ um.old_family = m->old_family;
+ memcpy(&um.old_daddr, &m->old_daddr, sizeof(um.old_daddr));
+ memcpy(&um.old_saddr, &m->old_saddr, sizeof(um.old_saddr));
+ um.new_family = m->new_family;
+ memcpy(&um.new_daddr, &m->new_daddr, sizeof(um.new_daddr));
+ memcpy(&um.new_saddr, &m->new_saddr, sizeof(um.new_saddr));
+
+ RTA_PUT(skb, XFRMA_MIGRATE, sizeof(um), &um);
+ return 0;
+
+rtattr_failure:
+ return -1;
+}
+
+static int build_migrate(struct sk_buff *skb, struct xfrm_migrate *m,
+ int num_migrate, struct xfrm_selector *sel,
+ u8 dir, u8 type)
+{
+ struct xfrm_migrate *mp;
+ struct xfrm_userpolicy_id *pol_id;
+ struct nlmsghdr *nlh;
+ unsigned char *b = skb_tail_pointer(skb);
+ int i;
+
+ nlh = NLMSG_PUT(skb, 0, 0, XFRM_MSG_MIGRATE, sizeof(*pol_id));
+ pol_id = NLMSG_DATA(nlh);
+ nlh->nlmsg_flags = 0;
+
+ /* copy data from selector, dir, and type to the pol_id */
+ memset(pol_id, 0, sizeof(*pol_id));
+ memcpy(&pol_id->sel, sel, sizeof(pol_id->sel));
+ pol_id->dir = dir;
+
+ if (copy_to_user_policy_type(type, skb) < 0)
+ goto nlmsg_failure;
+
+ for (i = 0, mp = m ; i < num_migrate; i++, mp++) {
+ if (copy_to_user_migrate(mp, skb) < 0)
+ goto nlmsg_failure;
+ }
+
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
+ return skb->len;
+nlmsg_failure:
+ nlmsg_trim(skb, b);
+ return -1;
+}
+
+static int xfrm_send_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
+ struct xfrm_migrate *m, int num_migrate)
+{
+ struct sk_buff *skb;
+ size_t len;
+
+ len = RTA_SPACE(sizeof(struct xfrm_user_migrate) * num_migrate);
+ len += NLMSG_SPACE(sizeof(struct xfrm_userpolicy_id));
+#ifdef CONFIG_XFRM_SUB_POLICY
+ len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
+#endif
+ skb = alloc_skb(len, GFP_ATOMIC);
+ if (skb == NULL)
+ return -ENOMEM;
+
+ /* build migrate */
+ if (build_migrate(skb, m, num_migrate, sel, dir, type) < 0)
+ BUG();
+
+ NETLINK_CB(skb).dst_group = XFRMNLGRP_MIGRATE;
+ return netlink_broadcast(xfrm_nl, 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)
+{
+ return -ENOPROTOOPT;
+}
+#endif
#define XMSGSIZE(type) NLMSG_LENGTH(sizeof(struct type))
[XFRM_MSG_NEWAE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_aevent_id),
[XFRM_MSG_GETAE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_aevent_id),
[XFRM_MSG_REPORT - XFRM_MSG_BASE] = XMSGSIZE(xfrm_user_report),
+ [XFRM_MSG_MIGRATE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_userpolicy_id),
+ [XFRM_MSG_GETSADINFO - XFRM_MSG_BASE] = NLMSG_LENGTH(sizeof(u32)),
+ [XFRM_MSG_GETSPDINFO - XFRM_MSG_BASE] = NLMSG_LENGTH(sizeof(u32)),
};
#undef XMSGSIZE
static struct xfrm_link {
- int (*doit)(struct sk_buff *, struct nlmsghdr *, void **);
+ int (*doit)(struct sk_buff *, struct nlmsghdr *, struct rtattr **);
int (*dump)(struct sk_buff *, struct netlink_callback *);
} xfrm_dispatch[XFRM_NR_MSGTYPES] = {
[XFRM_MSG_NEWSA - XFRM_MSG_BASE] = { .doit = xfrm_add_sa },
[XFRM_MSG_FLUSHPOLICY - XFRM_MSG_BASE] = { .doit = xfrm_flush_policy },
[XFRM_MSG_NEWAE - XFRM_MSG_BASE] = { .doit = xfrm_new_ae },
[XFRM_MSG_GETAE - XFRM_MSG_BASE] = { .doit = xfrm_get_ae },
+ [XFRM_MSG_MIGRATE - XFRM_MSG_BASE] = { .doit = xfrm_do_migrate },
+ [XFRM_MSG_GETSADINFO - XFRM_MSG_BASE] = { .doit = xfrm_get_sadinfo },
+ [XFRM_MSG_GETSPDINFO - XFRM_MSG_BASE] = { .doit = xfrm_get_spdinfo },
};
-static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
+static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
struct rtattr *xfrma[XFRMA_MAX];
struct xfrm_link *link;
int type, min_len;
- if (!(nlh->nlmsg_flags & NLM_F_REQUEST))
- return 0;
-
type = nlh->nlmsg_type;
-
- /* A control message: ignore them */
- if (type < XFRM_MSG_BASE)
- return 0;
-
- /* Unknown message: reply with EINVAL */
if (type > XFRM_MSG_MAX)
- goto err_einval;
+ return -EINVAL;
type -= XFRM_MSG_BASE;
link = &xfrm_dispatch[type];
/* All operations require privileges, even GET */
- if (security_netlink_recv(skb, CAP_NET_ADMIN)) {
- *errp = -EPERM;
- return -1;
- }
+ if (security_netlink_recv(skb, CAP_NET_ADMIN))
+ return -EPERM;
if ((type == (XFRM_MSG_GETSA - XFRM_MSG_BASE) ||
type == (XFRM_MSG_GETPOLICY - XFRM_MSG_BASE)) &&
(nlh->nlmsg_flags & NLM_F_DUMP)) {
if (link->dump == NULL)
- goto err_einval;
-
- if ((*errp = netlink_dump_start(xfrm_nl, skb, nlh,
- link->dump, NULL)) != 0) {
- return -1;
- }
+ return -EINVAL;
- netlink_queue_skip(nlh, skb);
- return -1;
+ return netlink_dump_start(xfrm_nl, skb, nlh, link->dump, NULL);
}
memset(xfrma, 0, sizeof(xfrma));
if (nlh->nlmsg_len < (min_len = xfrm_msg_min[type]))
- goto err_einval;
+ return -EINVAL;
if (nlh->nlmsg_len > min_len) {
int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len);
unsigned short flavor = attr->rta_type;
if (flavor) {
if (flavor > XFRMA_MAX)
- goto err_einval;
+ return -EINVAL;
xfrma[flavor - 1] = attr;
}
attr = RTA_NEXT(attr, attrlen);
}
if (link->doit == NULL)
- goto err_einval;
- *errp = link->doit(skb, nlh, (void **) &xfrma);
-
- return *errp;
+ return -EINVAL;
-err_einval:
- *errp = -EINVAL;
- return -1;
+ return link->doit(skb, nlh, xfrma);
}
static void xfrm_netlink_rcv(struct sock *sk, int len)
{
struct xfrm_user_expire *ue;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
nlh = NLMSG_PUT(skb, c->pid, 0, XFRM_MSG_EXPIRE,
sizeof(*ue));
copy_to_user_state(x, &ue->state);
ue->hard = (c->data.hard != 0) ? 1 : 0;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
struct xfrm_usersa_flush *p;
struct nlmsghdr *nlh;
struct sk_buff *skb;
- unsigned char *b;
+ sk_buff_data_t b;
int len = NLMSG_LENGTH(sizeof(struct xfrm_usersa_flush));
skb = alloc_skb(len, GFP_ATOMIC);
return -1;
}
-static int inline xfrm_sa_len(struct xfrm_state *x)
+static inline int xfrm_sa_len(struct xfrm_state *x)
{
int l = 0;
if (x->aalg)
struct xfrm_usersa_id *id;
struct nlmsghdr *nlh;
struct sk_buff *skb;
- unsigned char *b;
+ sk_buff_data_t b;
int len = xfrm_sa_len(x);
int headlen;
{
struct xfrm_user_acquire *ua;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
__u32 seq = xfrm_get_acqseq();
nlh = NLMSG_PUT(skb, 0, 0, XFRM_MSG_ACQUIRE,
goto nlmsg_failure;
if (copy_to_user_state_sec_ctx(x, skb))
goto nlmsg_failure;
- if (copy_to_user_policy_type(xp, skb) < 0)
+ if (copy_to_user_policy_type(xp->type, skb) < 0)
goto nlmsg_failure;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
len += NLMSG_SPACE(sizeof(struct xfrm_user_acquire));
- len += RTA_SPACE(xfrm_user_sec_ctx_size(xp));
+ len += RTA_SPACE(xfrm_user_sec_ctx_size(x->security));
+#ifdef CONFIG_XFRM_SUB_POLICY
+ len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
+#endif
skb = alloc_skb(len, GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
return NULL;
nr = ((len - sizeof(*p)) / sizeof(*ut));
- if (nr > XFRM_MAX_DEPTH)
+ if (validate_tmpl(nr, ut, p->sel.family))
return NULL;
if (p->dir > XFRM_POLICY_OUT)
xp->type = XFRM_POLICY_TYPE_MAIN;
copy_templates(xp, ut, nr);
- if (!xp->security) {
- int err = security_xfrm_sock_policy_alloc(xp, sk);
- if (err) {
- kfree(xp);
- *dir = err;
- return NULL;
- }
- }
-
*dir = p->dir;
return xp;
struct xfrm_user_polexpire *upe;
struct nlmsghdr *nlh;
int hard = c->data.hard;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
nlh = NLMSG_PUT(skb, c->pid, 0, XFRM_MSG_POLEXPIRE, sizeof(*upe));
upe = NLMSG_DATA(nlh);
goto nlmsg_failure;
if (copy_to_user_sec_ctx(xp, skb))
goto nlmsg_failure;
- if (copy_to_user_policy_type(xp, skb) < 0)
+ if (copy_to_user_policy_type(xp->type, skb) < 0)
goto nlmsg_failure;
upe->hard = !!hard;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
len += NLMSG_SPACE(sizeof(struct xfrm_user_polexpire));
- len += RTA_SPACE(xfrm_user_sec_ctx_size(xp));
+ len += RTA_SPACE(xfrm_user_sec_ctx_size(xp->security));
+#ifdef CONFIG_XFRM_SUB_POLICY
+ len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
+#endif
skb = alloc_skb(len, GFP_ATOMIC);
if (skb == NULL)
return -ENOMEM;
struct xfrm_userpolicy_id *id;
struct nlmsghdr *nlh;
struct sk_buff *skb;
- unsigned char *b;
+ sk_buff_data_t b;
int len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
int headlen;
len += RTA_SPACE(headlen);
headlen = sizeof(*id);
}
+#ifdef CONFIG_XFRM_SUB_POLICY
+ len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
+#endif
len += NLMSG_SPACE(headlen);
skb = alloc_skb(len, GFP_ATOMIC);
copy_to_user_policy(xp, p, dir);
if (copy_to_user_tmpl(xp, skb) < 0)
goto nlmsg_failure;
- if (copy_to_user_policy_type(xp, skb) < 0)
+ if (copy_to_user_policy_type(xp->type, skb) < 0)
goto nlmsg_failure;
nlh->nlmsg_len = skb->tail - b;
{
struct nlmsghdr *nlh;
struct sk_buff *skb;
- unsigned char *b;
+ sk_buff_data_t b;
+ int len = 0;
#ifdef CONFIG_XFRM_SUB_POLICY
- struct xfrm_userpolicy_type upt;
+ len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
#endif
- int len = NLMSG_LENGTH(0);
+ len += NLMSG_LENGTH(0);
skb = alloc_skb(len, GFP_ATOMIC);
if (skb == NULL)
nlh = NLMSG_PUT(skb, c->pid, c->seq, XFRM_MSG_FLUSHPOLICY, 0);
nlh->nlmsg_flags = 0;
-
-#ifdef CONFIG_XFRM_SUB_POLICY
- memset(&upt, 0, sizeof(upt));
- upt.type = c->data.type;
- RTA_PUT(skb, XFRMA_POLICY_TYPE, sizeof(upt), &upt);
-#endif
+ if (copy_to_user_policy_type(c->data.type, skb) < 0)
+ goto nlmsg_failure;
nlh->nlmsg_len = skb->tail - b;
return netlink_broadcast(xfrm_nl, skb, 0, XFRMNLGRP_POLICY, GFP_ATOMIC);
nlmsg_failure:
-#ifdef CONFIG_XFRM_SUB_POLICY
-rtattr_failure:
-#endif
kfree_skb(skb);
return -1;
}
{
struct xfrm_user_report *ur;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
nlh = NLMSG_PUT(skb, 0, 0, XFRM_MSG_REPORT, sizeof(*ur));
ur = NLMSG_DATA(nlh);
if (addr)
RTA_PUT(skb, XFRMA_COADDR, sizeof(*addr), addr);
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
.compile_policy = xfrm_compile_policy,
.notify_policy = xfrm_send_policy_notify,
.report = xfrm_send_report,
+ .migrate = xfrm_send_migrate,
};
static int __init xfrm_user_init(void)
printk(KERN_INFO "Initializing XFRM netlink socket\n");
nlsk = netlink_kernel_create(NETLINK_XFRM, XFRMNLGRP_MAX,
- xfrm_netlink_rcv, THIS_MODULE);
+ xfrm_netlink_rcv, NULL, THIS_MODULE);
if (nlsk == NULL)
return -ENOMEM;
rcu_assign_pointer(xfrm_nl, nlsk);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff