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Diffstat (limited to 'net/xfrm/xfrm_user.c')
-rw-r--r--net/xfrm/xfrm_user.c28
1 files changed, 13 insertions, 15 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 30e47c678d5e..5efaf4582700 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -1224,6 +1224,14 @@ static inline int copy_to_user_sec_ctx(struct xfrm_policy *xp, struct sk_buff *s
1224 } 1224 }
1225 return 0; 1225 return 0;
1226} 1226}
1227static inline size_t userpolicy_type_attrsize(void)
1228{
1229#ifdef CONFIG_XFRM_SUB_POLICY
1230 return nla_total_size(sizeof(struct xfrm_userpolicy_type));
1231#else
1232 return 0;
1233#endif
1234}
1227 1235
1228#ifdef CONFIG_XFRM_SUB_POLICY 1236#ifdef CONFIG_XFRM_SUB_POLICY
1229static int copy_to_user_policy_type(u8 type, struct sk_buff *skb) 1237static int copy_to_user_policy_type(u8 type, struct sk_buff *skb)
@@ -1857,9 +1865,7 @@ static int xfrm_send_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
1857 1865
1858 len = RTA_SPACE(sizeof(struct xfrm_user_migrate) * num_migrate); 1866 len = RTA_SPACE(sizeof(struct xfrm_user_migrate) * num_migrate);
1859 len += NLMSG_SPACE(sizeof(struct xfrm_userpolicy_id)); 1867 len += NLMSG_SPACE(sizeof(struct xfrm_userpolicy_id));
1860#ifdef CONFIG_XFRM_SUB_POLICY 1868 len += userpolicy_type_attrsize();
1861 len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
1862#endif
1863 skb = alloc_skb(len, GFP_ATOMIC); 1869 skb = alloc_skb(len, GFP_ATOMIC);
1864 if (skb == NULL) 1870 if (skb == NULL)
1865 return -ENOMEM; 1871 return -ENOMEM;
@@ -2214,9 +2220,7 @@ static int xfrm_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *xt,
2214 len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr); 2220 len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
2215 len += NLMSG_SPACE(sizeof(struct xfrm_user_acquire)); 2221 len += NLMSG_SPACE(sizeof(struct xfrm_user_acquire));
2216 len += RTA_SPACE(xfrm_user_sec_ctx_size(x->security)); 2222 len += RTA_SPACE(xfrm_user_sec_ctx_size(x->security));
2217#ifdef CONFIG_XFRM_SUB_POLICY 2223 len += userpolicy_type_attrsize();
2218 len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
2219#endif
2220 skb = alloc_skb(len, GFP_ATOMIC); 2224 skb = alloc_skb(len, GFP_ATOMIC);
2221 if (skb == NULL) 2225 if (skb == NULL)
2222 return -ENOMEM; 2226 return -ENOMEM;
@@ -2322,9 +2326,7 @@ static int xfrm_exp_policy_notify(struct xfrm_policy *xp, int dir, struct km_eve
2322 len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr); 2326 len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
2323 len += NLMSG_SPACE(sizeof(struct xfrm_user_polexpire)); 2327 len += NLMSG_SPACE(sizeof(struct xfrm_user_polexpire));
2324 len += RTA_SPACE(xfrm_user_sec_ctx_size(xp->security)); 2328 len += RTA_SPACE(xfrm_user_sec_ctx_size(xp->security));
2325#ifdef CONFIG_XFRM_SUB_POLICY 2329 len += userpolicy_type_attrsize();
2326 len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
2327#endif
2328 skb = alloc_skb(len, GFP_ATOMIC); 2330 skb = alloc_skb(len, GFP_ATOMIC);
2329 if (skb == NULL) 2331 if (skb == NULL)
2330 return -ENOMEM; 2332 return -ENOMEM;
@@ -2349,9 +2351,7 @@ static int xfrm_notify_policy(struct xfrm_policy *xp, int dir, struct km_event *
2349 len += RTA_SPACE(headlen); 2351 len += RTA_SPACE(headlen);
2350 headlen = sizeof(*id); 2352 headlen = sizeof(*id);
2351 } 2353 }
2352#ifdef CONFIG_XFRM_SUB_POLICY 2354 len += userpolicy_type_attrsize();
2353 len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
2354#endif
2355 len += NLMSG_SPACE(headlen); 2355 len += NLMSG_SPACE(headlen);
2356 2356
2357 skb = alloc_skb(len, GFP_ATOMIC); 2357 skb = alloc_skb(len, GFP_ATOMIC);
@@ -2401,9 +2401,7 @@ static int xfrm_notify_policy_flush(struct km_event *c)
2401 struct nlmsghdr *nlh; 2401 struct nlmsghdr *nlh;
2402 struct sk_buff *skb; 2402 struct sk_buff *skb;
2403 int len = 0; 2403 int len = 0;
2404#ifdef CONFIG_XFRM_SUB_POLICY 2404 len += userpolicy_type_attrsize();
2405 len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
2406#endif
2407 len += NLMSG_LENGTH(0); 2405 len += NLMSG_LENGTH(0);
2408 2406
2409 skb = alloc_skb(len, GFP_ATOMIC); 2407 skb = alloc_skb(len, GFP_ATOMIC);