From e31e0bdc7e7fb9a4b09d2f3266c035a18fdcee9d Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Tue, 22 Jan 2008 06:10:13 -0800 Subject: [NETNS][FRAGS]: Make thresholds work in namespaces. This is the same as with the timeout variable. Currently, after exceeding the high threshold _all_ the fragments are evicted, but it will be fixed in later patch. Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller --- net/ipv6/netfilter/nf_conntrack_reasm.c | 12 ++++++------ net/ipv6/reassembly.c | 15 +++++++-------- 2 files changed, 13 insertions(+), 14 deletions(-) (limited to 'net/ipv6') diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index 92a311ff79c..c75ac17e394 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -71,8 +71,6 @@ struct nf_ct_frag6_queue }; static struct inet_frags_ctl nf_frags_ctl __read_mostly = { - .high_thresh = 256 * 1024, - .low_thresh = 192 * 1024, .secret_interval = 10 * 60 * HZ, }; @@ -91,7 +89,7 @@ struct ctl_table nf_ct_ipv6_sysctl_table[] = { { .ctl_name = NET_NF_CONNTRACK_FRAG6_LOW_THRESH, .procname = "nf_conntrack_frag6_low_thresh", - .data = &nf_frags_ctl.low_thresh, + .data = &nf_init_frags.low_thresh, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = &proc_dointvec, @@ -99,7 +97,7 @@ struct ctl_table nf_ct_ipv6_sysctl_table[] = { { .ctl_name = NET_NF_CONNTRACK_FRAG6_HIGH_THRESH, .procname = "nf_conntrack_frag6_high_thresh", - .data = &nf_frags_ctl.high_thresh, + .data = &nf_init_frags.high_thresh, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = &proc_dointvec, @@ -632,7 +630,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb) goto ret_orig; } - if (atomic_read(&nf_init_frags.mem) > nf_frags_ctl.high_thresh) + if (atomic_read(&nf_init_frags.mem) > nf_init_frags.high_thresh) nf_ct_frag6_evictor(); fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr); @@ -712,6 +710,8 @@ int nf_ct_frag6_init(void) nf_frags.match = ip6_frag_match; nf_frags.frag_expire = nf_ct_frag6_expire; nf_init_frags.timeout = IPV6_FRAG_TIMEOUT; + nf_init_frags.high_thresh = 256 * 1024; + nf_init_frags.low_thresh = 192 * 1024; inet_frags_init_net(&nf_init_frags); inet_frags_init(&nf_frags); @@ -722,6 +722,6 @@ void nf_ct_frag6_cleanup(void) { inet_frags_fini(&nf_frags); - nf_frags_ctl.low_thresh = 0; + nf_init_frags.low_thresh = 0; nf_ct_frag6_evictor(); } diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index 91761365b18..85f3fa38223 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -601,8 +601,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb) } net = skb->dev->nd_net; - if (atomic_read(&net->ipv6.frags.mem) > - init_net.ipv6.sysctl.frags.high_thresh) + if (atomic_read(&net->ipv6.frags.mem) > net->ipv6.frags.high_thresh) ip6_evictor(net, ip6_dst_idev(skb->dst)); if ((fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr, @@ -634,7 +633,7 @@ static struct ctl_table ip6_frags_ctl_table[] = { { .ctl_name = NET_IPV6_IP6FRAG_HIGH_THRESH, .procname = "ip6frag_high_thresh", - .data = &init_net.ipv6.sysctl.frags.high_thresh, + .data = &init_net.ipv6.frags.high_thresh, .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec @@ -642,7 +641,7 @@ static struct ctl_table ip6_frags_ctl_table[] = { { .ctl_name = NET_IPV6_IP6FRAG_LOW_THRESH, .procname = "ip6frag_low_thresh", - .data = &init_net.ipv6.sysctl.frags.low_thresh, + .data = &init_net.ipv6.frags.low_thresh, .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec @@ -679,8 +678,8 @@ static int ip6_frags_sysctl_register(struct net *net) if (table == NULL) goto err_alloc; - table[0].mode &= ~0222; - table[1].mode &= ~0222; + table[0].data = &net->ipv6.frags.high_thresh; + table[1].data = &net->ipv6.frags.low_thresh; table[2].data = &net->ipv6.frags.timeout; table[3].mode &= ~0222; } @@ -722,8 +721,8 @@ static int ipv6_frags_init_net(struct net *net) { ip6_frags.ctl = &net->ipv6.sysctl.frags; - net->ipv6.sysctl.frags.high_thresh = 256 * 1024; - net->ipv6.sysctl.frags.low_thresh = 192 * 1024; + net->ipv6.frags.high_thresh = 256 * 1024; + net->ipv6.frags.low_thresh = 192 * 1024; net->ipv6.frags.timeout = IPV6_FRAG_TIMEOUT; net->ipv6.sysctl.frags.secret_interval = 10 * 60 * HZ; -- cgit v1.2.3