diff options
author | Dmitry Torokhov <dtor@insightbb.com> | 2007-05-01 00:24:54 -0400 |
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committer | Dmitry Torokhov <dtor@insightbb.com> | 2007-05-01 00:24:54 -0400 |
commit | bc95f3669f5e6f63cf0b84fe4922c3c6dd4aa775 (patch) | |
tree | 427fcf2a7287c16d4b5aa6cbf494d59579a6a8b1 /net/xfrm/xfrm_policy.c | |
parent | 3d29cdff999c37b3876082278a8134a0642a02cd (diff) | |
parent | dc87c3985e9b442c60994308a96f887579addc39 (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/usb/input/Makefile
drivers/usb/input/gtco.c
Diffstat (limited to 'net/xfrm/xfrm_policy.c')
-rw-r--r-- | net/xfrm/xfrm_policy.c | 105 |
1 files changed, 94 insertions, 11 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 946b715db5e..263e34e4526 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -268,7 +268,7 @@ static inline unsigned long make_jiffies(long secs) static void xfrm_policy_timer(unsigned long data) { struct xfrm_policy *xp = (struct xfrm_policy*)data; - unsigned long now = (unsigned long)xtime.tv_sec; + unsigned long now = get_seconds(); long next = LONG_MAX; int warn = 0; int dir; @@ -579,8 +579,22 @@ static inline int xfrm_byidx_should_resize(int total) return 0; } -static DEFINE_MUTEX(hash_resize_mutex); +void xfrm_spd_getinfo(struct xfrm_spdinfo *si) +{ + read_lock_bh(&xfrm_policy_lock); + si->incnt = xfrm_policy_count[XFRM_POLICY_IN]; + si->outcnt = xfrm_policy_count[XFRM_POLICY_OUT]; + si->fwdcnt = xfrm_policy_count[XFRM_POLICY_FWD]; + si->inscnt = xfrm_policy_count[XFRM_POLICY_IN+XFRM_POLICY_MAX]; + si->outscnt = xfrm_policy_count[XFRM_POLICY_OUT+XFRM_POLICY_MAX]; + si->fwdscnt = xfrm_policy_count[XFRM_POLICY_FWD+XFRM_POLICY_MAX]; + si->spdhcnt = xfrm_idx_hmask; + si->spdhmcnt = xfrm_policy_hashmax; + read_unlock_bh(&xfrm_policy_lock); +} +EXPORT_SYMBOL(xfrm_spd_getinfo); +static DEFINE_MUTEX(hash_resize_mutex); static void xfrm_hash_resize(struct work_struct *__unused) { int dir, total; @@ -690,7 +704,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl) } policy->index = delpol ? delpol->index : xfrm_gen_index(policy->type, dir); hlist_add_head(&policy->byidx, xfrm_policy_byidx+idx_hash(policy->index)); - policy->curlft.add_time = (unsigned long)xtime.tv_sec; + policy->curlft.add_time = get_seconds(); policy->curlft.use_time = 0; if (!mod_timer(&policy->timer, jiffies + HZ)) xfrm_pol_hold(policy); @@ -735,12 +749,14 @@ EXPORT_SYMBOL(xfrm_policy_insert); struct xfrm_policy *xfrm_policy_bysel_ctx(u8 type, int dir, struct xfrm_selector *sel, - struct xfrm_sec_ctx *ctx, int delete) + struct xfrm_sec_ctx *ctx, int delete, + int *err) { struct xfrm_policy *pol, *ret; struct hlist_head *chain; struct hlist_node *entry; + *err = 0; write_lock_bh(&xfrm_policy_lock); chain = policy_hash_bysel(sel, sel->family, dir); ret = NULL; @@ -750,6 +766,11 @@ struct xfrm_policy *xfrm_policy_bysel_ctx(u8 type, int dir, xfrm_sec_ctx_match(ctx, pol->security)) { xfrm_pol_hold(pol); if (delete) { + *err = security_xfrm_policy_delete(pol); + if (*err) { + write_unlock_bh(&xfrm_policy_lock); + return pol; + } hlist_del(&pol->bydst); hlist_del(&pol->byidx); xfrm_policy_count[dir]--; @@ -768,12 +789,14 @@ struct xfrm_policy *xfrm_policy_bysel_ctx(u8 type, int dir, } EXPORT_SYMBOL(xfrm_policy_bysel_ctx); -struct xfrm_policy *xfrm_policy_byid(u8 type, int dir, u32 id, int delete) +struct xfrm_policy *xfrm_policy_byid(u8 type, int dir, u32 id, int delete, + int *err) { struct xfrm_policy *pol, *ret; struct hlist_head *chain; struct hlist_node *entry; + *err = 0; write_lock_bh(&xfrm_policy_lock); chain = xfrm_policy_byidx + idx_hash(id); ret = NULL; @@ -781,6 +804,11 @@ struct xfrm_policy *xfrm_policy_byid(u8 type, int dir, u32 id, int delete) if (pol->type == type && pol->index == id) { xfrm_pol_hold(pol); if (delete) { + *err = security_xfrm_policy_delete(pol); + if (*err) { + write_unlock_bh(&xfrm_policy_lock); + return pol; + } hlist_del(&pol->bydst); hlist_del(&pol->byidx); xfrm_policy_count[dir]--; @@ -1035,7 +1063,7 @@ static inline int policy_to_flow_dir(int dir) return FLOW_DIR_OUT; case XFRM_POLICY_FWD: return FLOW_DIR_FWD; - }; + } } static struct xfrm_policy *xfrm_sk_policy_lookup(struct sock *sk, int dir, struct flowi *fl) @@ -1119,7 +1147,7 @@ int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol) old_pol = sk->sk_policy[dir]; sk->sk_policy[dir] = pol; if (pol) { - pol->curlft.add_time = (unsigned long)xtime.tv_sec; + pol->curlft.add_time = get_seconds(); pol->index = xfrm_gen_index(pol->type, XFRM_POLICY_MAX+dir); __xfrm_policy_link(pol, XFRM_POLICY_MAX+dir); } @@ -1316,6 +1344,40 @@ xfrm_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int nx, return err; } +static int inline +xfrm_dst_alloc_copy(void **target, void *src, int size) +{ + if (!*target) { + *target = kmalloc(size, GFP_ATOMIC); + if (!*target) + return -ENOMEM; + } + memcpy(*target, src, size); + return 0; +} + +static int inline +xfrm_dst_update_parent(struct dst_entry *dst, struct xfrm_selector *sel) +{ +#ifdef CONFIG_XFRM_SUB_POLICY + struct xfrm_dst *xdst = (struct xfrm_dst *)dst; + return xfrm_dst_alloc_copy((void **)&(xdst->partner), + sel, sizeof(*sel)); +#else + return 0; +#endif +} + +static int inline +xfrm_dst_update_origin(struct dst_entry *dst, struct flowi *fl) +{ +#ifdef CONFIG_XFRM_SUB_POLICY + struct xfrm_dst *xdst = (struct xfrm_dst *)dst; + return xfrm_dst_alloc_copy((void **)&(xdst->origin), fl, sizeof(*fl)); +#else + return 0; +#endif +} static int stale_bundle(struct dst_entry *dst); @@ -1372,7 +1434,7 @@ restart: return 0; family = dst_orig->ops->family; - policy->curlft.use_time = (unsigned long)xtime.tv_sec; + policy->curlft.use_time = get_seconds(); pols[0] = policy; npols ++; xfrm_nr += pols[0]->xfrm_nr; @@ -1504,6 +1566,18 @@ restart: err = -EHOSTUNREACH; goto error; } + + if (npols > 1) + err = xfrm_dst_update_parent(dst, &pols[1]->selector); + else + err = xfrm_dst_update_origin(dst, fl); + if (unlikely(err)) { + write_unlock_bh(&policy->lock); + if (dst) + dst_free(dst); + goto error; + } + dst->next = policy->bundles; policy->bundles = dst; dst_hold(dst); @@ -1668,7 +1742,7 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb, return 1; } - pol->curlft.use_time = (unsigned long)xtime.tv_sec; + pol->curlft.use_time = get_seconds(); pols[0] = pol; npols ++; @@ -1680,7 +1754,7 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb, if (pols[1]) { if (IS_ERR(pols[1])) return 0; - pols[1]->curlft.use_time = (unsigned long)xtime.tv_sec; + pols[1]->curlft.use_time = get_seconds(); npols ++; } } @@ -1919,6 +1993,15 @@ int xfrm_bundle_ok(struct xfrm_policy *pol, struct xfrm_dst *first, if (!dst_check(dst->path, ((struct xfrm_dst *)dst)->path_cookie) || (dst->dev && !netif_running(dst->dev))) return 0; +#ifdef CONFIG_XFRM_SUB_POLICY + if (fl) { + if (first->origin && !flow_cache_uli_match(first->origin, fl)) + return 0; + if (first->partner && + !xfrm_selector_match(first->partner, fl, family)) + return 0; + } +#endif last = NULL; @@ -2075,7 +2158,7 @@ void xfrm_audit_log(uid_t auid, u32 sid, int type, int result, sizeof(struct in6_addr)); } audit_log_format(audit_buf, - " src=" NIP6_FMT "dst=" NIP6_FMT, + " src=" NIP6_FMT " dst=" NIP6_FMT, NIP6(saddr6), NIP6(daddr6)); } break; |