From 98806f75ba2afc716e4d2f915d3ac7687546f9c0 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Tue, 25 Nov 2008 17:29:47 -0800 Subject: [PATCH] netns xfrm: trivial netns propagations Take netns from xfrm_state or xfrm_policy. Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller --- net/xfrm/xfrm_policy.c | 15 ++++++----- net/xfrm/xfrm_state.c | 59 ++++++++++++++++++++++++------------------ 2 files changed, 43 insertions(+), 31 deletions(-) diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 1d300862dc04..3d931f52f897 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -1069,29 +1069,32 @@ static struct xfrm_policy *xfrm_sk_policy_lookup(struct sock *sk, int dir, struc static void __xfrm_policy_link(struct xfrm_policy *pol, int dir) { + struct net *net = xp_net(pol); struct hlist_head *chain = policy_hash_bysel(&pol->selector, pol->family, dir); - list_add(&pol->walk.all, &init_net.xfrm.policy_all); + list_add(&pol->walk.all, &net->xfrm.policy_all); hlist_add_head(&pol->bydst, chain); - hlist_add_head(&pol->byidx, init_net.xfrm.policy_byidx+idx_hash(pol->index)); - init_net.xfrm.policy_count[dir]++; + hlist_add_head(&pol->byidx, net->xfrm.policy_byidx+idx_hash(pol->index)); + net->xfrm.policy_count[dir]++; xfrm_pol_hold(pol); - if (xfrm_bydst_should_resize(&init_net, dir, NULL)) - schedule_work(&init_net.xfrm.policy_hash_work); + if (xfrm_bydst_should_resize(net, dir, NULL)) + schedule_work(&net->xfrm.policy_hash_work); } static struct xfrm_policy *__xfrm_policy_unlink(struct xfrm_policy *pol, int dir) { + struct net *net = xp_net(pol); + if (hlist_unhashed(&pol->bydst)) return NULL; hlist_del(&pol->bydst); hlist_del(&pol->byidx); list_del(&pol->walk.all); - init_net.xfrm.policy_count[dir]--; + net->xfrm.policy_count[dir]--; return pol; } diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 72b2956627d6..f3f635d4ee66 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -412,6 +412,7 @@ static inline unsigned long make_jiffies(long secs) static void xfrm_timer_handler(unsigned long data) { struct xfrm_state *x = (struct xfrm_state*)data; + struct net *net = xs_net(x); unsigned long now = get_seconds(); long next = LONG_MAX; int warn = 0; @@ -469,7 +470,7 @@ resched: expired: if (x->km.state == XFRM_STATE_ACQ && x->id.spi == 0) { x->km.state = XFRM_STATE_EXPIRED; - wake_up(&init_net.xfrm.km_waitq); + wake_up(&net->xfrm.km_waitq); next = 2; goto resched; } @@ -522,17 +523,20 @@ EXPORT_SYMBOL(xfrm_state_alloc); void __xfrm_state_destroy(struct xfrm_state *x) { + struct net *net = xs_net(x); + WARN_ON(x->km.state != XFRM_STATE_DEAD); spin_lock_bh(&xfrm_state_gc_lock); - hlist_add_head(&x->gclist, &init_net.xfrm.state_gc_list); + hlist_add_head(&x->gclist, &net->xfrm.state_gc_list); spin_unlock_bh(&xfrm_state_gc_lock); - schedule_work(&init_net.xfrm.state_gc_work); + schedule_work(&net->xfrm.state_gc_work); } EXPORT_SYMBOL(__xfrm_state_destroy); int __xfrm_state_delete(struct xfrm_state *x) { + struct net *net = xs_net(x); int err = -ESRCH; if (x->km.state != XFRM_STATE_DEAD) { @@ -543,7 +547,7 @@ int __xfrm_state_delete(struct xfrm_state *x) hlist_del(&x->bysrc); if (x->id.spi) hlist_del(&x->byspi); - init_net.xfrm.state_num--; + net->xfrm.state_num--; spin_unlock(&xfrm_state_lock); /* All xfrm_state objects are created by xfrm_state_alloc. @@ -745,12 +749,12 @@ __xfrm_state_locate(struct xfrm_state *x, int use_spi, int family) x->id.proto, family); } -static void xfrm_hash_grow_check(int have_hash_collision) +static void xfrm_hash_grow_check(struct net *net, int have_hash_collision) { if (have_hash_collision && - (init_net.xfrm.state_hmask + 1) < xfrm_state_hashmax && - init_net.xfrm.state_num > init_net.xfrm.state_hmask) - schedule_work(&init_net.xfrm.state_hash_work); + (net->xfrm.state_hmask + 1) < xfrm_state_hashmax && + net->xfrm.state_num > net->xfrm.state_hmask) + schedule_work(&net->xfrm.state_hash_work); } struct xfrm_state * @@ -851,7 +855,7 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr, x->timer.expires = jiffies + sysctl_xfrm_acq_expires*HZ; add_timer(&x->timer); init_net.xfrm.state_num++; - xfrm_hash_grow_check(x->bydst.next != NULL); + xfrm_hash_grow_check(&init_net, x->bydst.next != NULL); } else { x->km.state = XFRM_STATE_DEAD; to_put = x; @@ -904,48 +908,50 @@ EXPORT_SYMBOL(xfrm_stateonly_find); static void __xfrm_state_insert(struct xfrm_state *x) { + struct net *net = xs_net(x); unsigned int h; x->genid = ++xfrm_state_genid; - list_add(&x->km.all, &init_net.xfrm.state_all); + list_add(&x->km.all, &net->xfrm.state_all); - h = xfrm_dst_hash(&init_net, &x->id.daddr, &x->props.saddr, + h = xfrm_dst_hash(net, &x->id.daddr, &x->props.saddr, x->props.reqid, x->props.family); - hlist_add_head(&x->bydst, init_net.xfrm.state_bydst+h); + hlist_add_head(&x->bydst, net->xfrm.state_bydst+h); - h = xfrm_src_hash(&init_net, &x->id.daddr, &x->props.saddr, x->props.family); - hlist_add_head(&x->bysrc, init_net.xfrm.state_bysrc+h); + h = xfrm_src_hash(net, &x->id.daddr, &x->props.saddr, x->props.family); + hlist_add_head(&x->bysrc, net->xfrm.state_bysrc+h); if (x->id.spi) { - h = xfrm_spi_hash(&init_net, &x->id.daddr, x->id.spi, x->id.proto, + h = xfrm_spi_hash(net, &x->id.daddr, x->id.spi, x->id.proto, x->props.family); - hlist_add_head(&x->byspi, init_net.xfrm.state_byspi+h); + hlist_add_head(&x->byspi, net->xfrm.state_byspi+h); } mod_timer(&x->timer, jiffies + HZ); if (x->replay_maxage) mod_timer(&x->rtimer, jiffies + x->replay_maxage); - wake_up(&init_net.xfrm.km_waitq); + wake_up(&net->xfrm.km_waitq); - init_net.xfrm.state_num++; + net->xfrm.state_num++; - xfrm_hash_grow_check(x->bydst.next != NULL); + xfrm_hash_grow_check(net, x->bydst.next != NULL); } /* xfrm_state_lock is held */ static void __xfrm_state_bump_genids(struct xfrm_state *xnew) { + struct net *net = xs_net(xnew); unsigned short family = xnew->props.family; u32 reqid = xnew->props.reqid; struct xfrm_state *x; struct hlist_node *entry; unsigned int h; - h = xfrm_dst_hash(&init_net, &xnew->id.daddr, &xnew->props.saddr, reqid, family); - hlist_for_each_entry(x, entry, init_net.xfrm.state_bydst+h, bydst) { + h = xfrm_dst_hash(net, &xnew->id.daddr, &xnew->props.saddr, reqid, family); + hlist_for_each_entry(x, entry, net->xfrm.state_bydst+h, bydst) { if (x->props.family == family && x->props.reqid == reqid && !xfrm_addr_cmp(&x->id.daddr, &xnew->id.daddr, family) && @@ -1044,7 +1050,7 @@ static struct xfrm_state *__find_acq_core(unsigned short family, u8 mode, u32 re init_net.xfrm.state_num++; - xfrm_hash_grow_check(x->bydst.next != NULL); + xfrm_hash_grow_check(&init_net, x->bydst.next != NULL); } return x; @@ -1109,8 +1115,9 @@ EXPORT_SYMBOL(xfrm_state_add); #ifdef CONFIG_XFRM_MIGRATE static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, int *errp) { + struct net *net = xs_net(orig); int err = -ENOMEM; - struct xfrm_state *x = xfrm_state_alloc(&init_net); + struct xfrm_state *x = xfrm_state_alloc(net); if (!x) goto error; @@ -1734,6 +1741,7 @@ EXPORT_SYMBOL(km_state_notify); void km_state_expired(struct xfrm_state *x, int hard, u32 pid) { + struct net *net = xs_net(x); struct km_event c; c.data.hard = hard; @@ -1742,7 +1750,7 @@ void km_state_expired(struct xfrm_state *x, int hard, u32 pid) km_state_notify(x, &c); if (hard) - wake_up(&init_net.xfrm.km_waitq); + wake_up(&net->xfrm.km_waitq); } EXPORT_SYMBOL(km_state_expired); @@ -1785,6 +1793,7 @@ EXPORT_SYMBOL(km_new_mapping); void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 pid) { + struct net *net = xp_net(pol); struct km_event c; c.data.hard = hard; @@ -1793,7 +1802,7 @@ void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 pid) km_policy_notify(pol, dir, &c); if (hard) - wake_up(&init_net.xfrm.km_waitq); + wake_up(&net->xfrm.km_waitq); } EXPORT_SYMBOL(km_policy_expired); -- 2.20.1