diff options
| -rw-r--r-- | include/net/net_namespace.h | 4 | ||||
| -rw-r--r-- | include/net/netns/dccp.h | 12 | ||||
| -rw-r--r-- | net/dccp/ipv4.c | 24 | ||||
| -rw-r--r-- | net/dccp/ipv6.c | 24 |
4 files changed, 40 insertions, 24 deletions
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index 3802c8322ab0..fa5887143f0d 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -22,7 +22,6 @@ #include <net/netns/nexthop.h> #include <net/netns/ieee802154_6lowpan.h> #include <net/netns/sctp.h> -#include <net/netns/dccp.h> #include <net/netns/netfilter.h> #include <net/netns/x_tables.h> #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE) @@ -130,9 +129,6 @@ struct net { #if defined(CONFIG_IP_SCTP) || defined(CONFIG_IP_SCTP_MODULE) struct netns_sctp sctp; #endif -#if defined(CONFIG_IP_DCCP) || defined(CONFIG_IP_DCCP_MODULE) - struct netns_dccp dccp; -#endif #ifdef CONFIG_NETFILTER struct netns_nf nf; struct netns_xt xt; diff --git a/include/net/netns/dccp.h b/include/net/netns/dccp.h deleted file mode 100644 index cdbc4f5b8390..000000000000 --- a/include/net/netns/dccp.h +++ /dev/null @@ -1,12 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __NETNS_DCCP_H__ -#define __NETNS_DCCP_H__ - -struct sock; - -struct netns_dccp { - struct sock *v4_ctl_sk; - struct sock *v6_ctl_sk; -}; - -#endif diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index 2455b0c0e486..ffc601a3b329 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -23,14 +23,21 @@ #include <net/tcp_states.h> #include <net/xfrm.h> #include <net/secure_seq.h> +#include <net/netns/generic.h> #include "ackvec.h" #include "ccid.h" #include "dccp.h" #include "feat.h" +struct dccp_v4_pernet { + struct sock *v4_ctl_sk; +}; + +static unsigned int dccp_v4_pernet_id __read_mostly; + /* - * The per-net dccp.v4_ctl_sk socket is used for responding to + * The per-net v4_ctl_sk socket is used for responding to * the Out-of-the-blue (OOTB) packets. A control sock will be created * for this socket at the initialization time. */ @@ -513,7 +520,8 @@ static void dccp_v4_ctl_send_reset(const struct sock *sk, struct sk_buff *rxskb) struct sk_buff *skb; struct dst_entry *dst; struct net *net = dev_net(skb_dst(rxskb)->dev); - struct sock *ctl_sk = net->dccp.v4_ctl_sk; + struct dccp_v4_pernet *pn; + struct sock *ctl_sk; /* Never send a reset in response to a reset. */ if (dccp_hdr(rxskb)->dccph_type == DCCP_PKT_RESET) @@ -522,6 +530,8 @@ static void dccp_v4_ctl_send_reset(const struct sock *sk, struct sk_buff *rxskb) if (skb_rtable(rxskb)->rt_type != RTN_LOCAL) return; + pn = net_generic(net, dccp_v4_pernet_id); + ctl_sk = pn->v4_ctl_sk; dst = dccp_v4_route_skb(net, ctl_sk, rxskb); if (dst == NULL) return; @@ -1005,16 +1015,20 @@ static struct inet_protosw dccp_v4_protosw = { static int __net_init dccp_v4_init_net(struct net *net) { + struct dccp_v4_pernet *pn = net_generic(net, dccp_v4_pernet_id); + if (dccp_hashinfo.bhash == NULL) return -ESOCKTNOSUPPORT; - return inet_ctl_sock_create(&net->dccp.v4_ctl_sk, PF_INET, + return inet_ctl_sock_create(&pn->v4_ctl_sk, PF_INET, SOCK_DCCP, IPPROTO_DCCP, net); } static void __net_exit dccp_v4_exit_net(struct net *net) { - inet_ctl_sock_destroy(net->dccp.v4_ctl_sk); + struct dccp_v4_pernet *pn = net_generic(net, dccp_v4_pernet_id); + + inet_ctl_sock_destroy(pn->v4_ctl_sk); } static void __net_exit dccp_v4_exit_batch(struct list_head *net_exit_list) @@ -1026,6 +1040,8 @@ static struct pernet_operations dccp_v4_ops = { .init = dccp_v4_init_net, .exit = dccp_v4_exit_net, .exit_batch = dccp_v4_exit_batch, + .id = &dccp_v4_pernet_id, + .size = sizeof(struct dccp_v4_pernet), }; static int __init dccp_v4_init(void) diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 2be5c69824f9..6f5304db5a67 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -27,13 +27,20 @@ #include <net/ip6_checksum.h> #include <net/xfrm.h> #include <net/secure_seq.h> +#include <net/netns/generic.h> #include <net/sock.h> #include "dccp.h" #include "ipv6.h" #include "feat.h" -/* The per-net dccp.v6_ctl_sk is used for sending RSTs and ACKs */ +struct dccp_v6_pernet { + struct sock *v6_ctl_sk; +}; + +static unsigned int dccp_v6_pernet_id __read_mostly; + +/* The per-net v6_ctl_sk is used for sending RSTs and ACKs */ static const struct inet_connection_sock_af_ops dccp_ipv6_mapped; static const struct inet_connection_sock_af_ops dccp_ipv6_af_ops; @@ -254,7 +261,8 @@ static void dccp_v6_ctl_send_reset(const struct sock *sk, struct sk_buff *rxskb) struct sk_buff *skb; struct flowi6 fl6; struct net *net = dev_net(skb_dst(rxskb)->dev); - struct sock *ctl_sk = net->dccp.v6_ctl_sk; + struct dccp_v6_pernet *pn; + struct sock *ctl_sk; struct dst_entry *dst; if (dccp_hdr(rxskb)->dccph_type == DCCP_PKT_RESET) @@ -263,6 +271,8 @@ static void dccp_v6_ctl_send_reset(const struct sock *sk, struct sk_buff *rxskb) if (!ipv6_unicast_destination(rxskb)) return; + pn = net_generic(net, dccp_v6_pernet_id); + ctl_sk = pn->v6_ctl_sk; skb = dccp_ctl_make_reset(ctl_sk, rxskb); if (skb == NULL) return; @@ -1089,16 +1099,20 @@ static struct inet_protosw dccp_v6_protosw = { static int __net_init dccp_v6_init_net(struct net *net) { + struct dccp_v6_pernet *pn = net_generic(net, dccp_v6_pernet_id); + if (dccp_hashinfo.bhash == NULL) return -ESOCKTNOSUPPORT; - return inet_ctl_sock_create(&net->dccp.v6_ctl_sk, PF_INET6, + return inet_ctl_sock_create(&pn->v6_ctl_sk, PF_INET6, SOCK_DCCP, IPPROTO_DCCP, net); } static void __net_exit dccp_v6_exit_net(struct net *net) { - inet_ctl_sock_destroy(net->dccp.v6_ctl_sk); + struct dccp_v6_pernet *pn = net_generic(net, dccp_v6_pernet_id); + + inet_ctl_sock_destroy(pn->v6_ctl_sk); } static void __net_exit dccp_v6_exit_batch(struct list_head *net_exit_list) @@ -1110,6 +1124,8 @@ static struct pernet_operations dccp_v6_ops = { .init = dccp_v6_init_net, .exit = dccp_v6_exit_net, .exit_batch = dccp_v6_exit_batch, + .id = &dccp_v6_pernet_id, + .size = sizeof(struct dccp_v6_pernet), }; static int __init dccp_v6_init(void) |