diff options
Diffstat (limited to 'net/ieee802154/reassembly.c')
| -rw-r--r-- | net/ieee802154/reassembly.c | 48 |
1 files changed, 31 insertions, 17 deletions
diff --git a/net/ieee802154/reassembly.c b/net/ieee802154/reassembly.c index ef2d54372b1..6f1428c4870 100644 --- a/net/ieee802154/reassembly.c +++ b/net/ieee802154/reassembly.c @@ -36,7 +36,7 @@ struct lowpan_frag_info { u8 d_offset; }; -struct lowpan_frag_info *lowpan_cb(struct sk_buff *skb) +static struct lowpan_frag_info *lowpan_cb(struct sk_buff *skb) { return (struct lowpan_frag_info *)skb->cb; } @@ -120,6 +120,8 @@ fq_find(struct net *net, const struct lowpan_frag_info *frag_info, struct inet_frag_queue *q; struct lowpan_create_arg arg; unsigned int hash; + struct netns_ieee802154_lowpan *ieee802154_lowpan = + net_ieee802154_lowpan(net); arg.tag = frag_info->d_tag; arg.d_size = frag_info->d_size; @@ -129,7 +131,7 @@ fq_find(struct net *net, const struct lowpan_frag_info *frag_info, read_lock(&lowpan_frags.lock); hash = lowpan_hash_frag(frag_info->d_tag, frag_info->d_size, src, dst); - q = inet_frag_find(&net->ieee802154_lowpan.frags, + q = inet_frag_find(&ieee802154_lowpan->frags, &lowpan_frags, &arg, hash); if (IS_ERR_OR_NULL(q)) { inet_frag_maybe_warn_overflow(q, pr_fmt()); @@ -357,6 +359,8 @@ int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type) struct net *net = dev_net(skb->dev); struct lowpan_frag_info *frag_info = lowpan_cb(skb); struct ieee802154_addr source, dest; + struct netns_ieee802154_lowpan *ieee802154_lowpan = + net_ieee802154_lowpan(net); int err; source = mac_cb(skb)->source; @@ -366,10 +370,10 @@ int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type) if (err < 0) goto err; - if (frag_info->d_size > net->ieee802154_lowpan.max_dsize) + if (frag_info->d_size > ieee802154_lowpan->max_dsize) goto err; - inet_frag_evictor(&net->ieee802154_lowpan.frags, &lowpan_frags, false); + inet_frag_evictor(&ieee802154_lowpan->frags, &lowpan_frags, false); fq = fq_find(net, frag_info, &source, &dest); if (fq != NULL) { @@ -436,6 +440,8 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net) { struct ctl_table *table; struct ctl_table_header *hdr; + struct netns_ieee802154_lowpan *ieee802154_lowpan = + net_ieee802154_lowpan(net); table = lowpan_frags_ns_ctl_table; if (!net_eq(net, &init_net)) { @@ -444,10 +450,10 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net) if (table == NULL) goto err_alloc; - table[0].data = &net->ieee802154_lowpan.frags.high_thresh; - table[1].data = &net->ieee802154_lowpan.frags.low_thresh; - table[2].data = &net->ieee802154_lowpan.frags.timeout; - table[3].data = &net->ieee802154_lowpan.max_dsize; + table[0].data = &ieee802154_lowpan->frags.high_thresh; + table[1].data = &ieee802154_lowpan->frags.low_thresh; + table[2].data = &ieee802154_lowpan->frags.timeout; + table[3].data = &ieee802154_lowpan->max_dsize; /* Don't export sysctls to unprivileged users */ if (net->user_ns != &init_user_ns) @@ -458,7 +464,7 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net) if (hdr == NULL) goto err_reg; - net->ieee802154_lowpan.sysctl.frags_hdr = hdr; + ieee802154_lowpan->sysctl.frags_hdr = hdr; return 0; err_reg: @@ -471,9 +477,11 @@ err_alloc: static void __net_exit lowpan_frags_ns_sysctl_unregister(struct net *net) { struct ctl_table *table; + struct netns_ieee802154_lowpan *ieee802154_lowpan = + net_ieee802154_lowpan(net); - table = net->ieee802154_lowpan.sysctl.frags_hdr->ctl_table_arg; - unregister_net_sysctl_table(net->ieee802154_lowpan.sysctl.frags_hdr); + table = ieee802154_lowpan->sysctl.frags_hdr->ctl_table_arg; + unregister_net_sysctl_table(ieee802154_lowpan->sysctl.frags_hdr); if (!net_eq(net, &init_net)) kfree(table); } @@ -514,20 +522,26 @@ static inline void lowpan_frags_sysctl_unregister(void) static int __net_init lowpan_frags_init_net(struct net *net) { - net->ieee802154_lowpan.frags.high_thresh = IPV6_FRAG_HIGH_THRESH; - net->ieee802154_lowpan.frags.low_thresh = IPV6_FRAG_LOW_THRESH; - net->ieee802154_lowpan.frags.timeout = IPV6_FRAG_TIMEOUT; - net->ieee802154_lowpan.max_dsize = 0xFFFF; + struct netns_ieee802154_lowpan *ieee802154_lowpan = + net_ieee802154_lowpan(net); - inet_frags_init_net(&net->ieee802154_lowpan.frags); + ieee802154_lowpan->frags.high_thresh = IPV6_FRAG_HIGH_THRESH; + ieee802154_lowpan->frags.low_thresh = IPV6_FRAG_LOW_THRESH; + ieee802154_lowpan->frags.timeout = IPV6_FRAG_TIMEOUT; + ieee802154_lowpan->max_dsize = 0xFFFF; + + inet_frags_init_net(&ieee802154_lowpan->frags); return lowpan_frags_ns_sysctl_register(net); } static void __net_exit lowpan_frags_exit_net(struct net *net) { + struct netns_ieee802154_lowpan *ieee802154_lowpan = + net_ieee802154_lowpan(net); + lowpan_frags_ns_sysctl_unregister(net); - inet_frags_exit_net(&net->ieee802154_lowpan.frags, &lowpan_frags); + inet_frags_exit_net(&ieee802154_lowpan->frags, &lowpan_frags); } static struct pernet_operations lowpan_frags_ops = { |