diff options
Diffstat (limited to 'crypto/crypto_user_base.c')
| -rw-r--r-- | crypto/crypto_user_base.c | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/crypto/crypto_user_base.c b/crypto/crypto_user_base.c index c65e39005ce2..910e0b46012e 100644 --- a/crypto/crypto_user_base.c +++ b/crypto/crypto_user_base.c @@ -10,9 +10,10 @@ #include <linux/crypto.h> #include <linux/cryptouser.h> #include <linux/sched.h> -#include <net/netlink.h> #include <linux/security.h> +#include <net/netlink.h> #include <net/net_namespace.h> +#include <net/sock.h> #include <crypto/internal/skcipher.h> #include <crypto/internal/rng.h> #include <crypto/akcipher.h> @@ -25,9 +26,6 @@ static DEFINE_MUTEX(crypto_cfg_mutex); -/* The crypto netlink socket */ -struct sock *crypto_nlsk; - struct crypto_dump_info { struct sk_buff *in_skb; struct sk_buff *out_skb; @@ -186,6 +184,7 @@ out: static int crypto_report(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, struct nlattr **attrs) { + struct net *net = sock_net(in_skb->sk); struct crypto_user_alg *p = nlmsg_data(in_nlh); struct crypto_alg *alg; struct sk_buff *skb; @@ -217,7 +216,7 @@ drop_alg: if (err) return err; - return nlmsg_unicast(crypto_nlsk, skb, NETLINK_CB(in_skb).portid); + return nlmsg_unicast(net->crypto_nlsk, skb, NETLINK_CB(in_skb).portid); } static int crypto_dump_report(struct sk_buff *skb, struct netlink_callback *cb) @@ -420,6 +419,7 @@ static const struct crypto_link { static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, struct netlink_ext_ack *extack) { + struct net *net = sock_net(skb->sk); struct nlattr *attrs[CRYPTOCFGA_MAX+1]; const struct crypto_link *link; int type, err; @@ -450,7 +450,7 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, .done = link->done, .min_dump_alloc = min(dump_alloc, 65535UL), }; - err = netlink_dump_start(crypto_nlsk, skb, nlh, &c); + err = netlink_dump_start(net->crypto_nlsk, skb, nlh, &c); } return err; @@ -474,22 +474,35 @@ static void crypto_netlink_rcv(struct sk_buff *skb) mutex_unlock(&crypto_cfg_mutex); } -static int __init crypto_user_init(void) +static int __net_init crypto_netlink_init(struct net *net) { struct netlink_kernel_cfg cfg = { .input = crypto_netlink_rcv, }; - crypto_nlsk = netlink_kernel_create(&init_net, NETLINK_CRYPTO, &cfg); - if (!crypto_nlsk) - return -ENOMEM; + net->crypto_nlsk = netlink_kernel_create(net, NETLINK_CRYPTO, &cfg); + return net->crypto_nlsk == NULL ? -ENOMEM : 0; +} - return 0; +static void __net_exit crypto_netlink_exit(struct net *net) +{ + netlink_kernel_release(net->crypto_nlsk); + net->crypto_nlsk = NULL; +} + +static struct pernet_operations crypto_netlink_net_ops = { + .init = crypto_netlink_init, + .exit = crypto_netlink_exit, +}; + +static int __init crypto_user_init(void) +{ + return register_pernet_subsys(&crypto_netlink_net_ops); } static void __exit crypto_user_exit(void) { - netlink_kernel_release(crypto_nlsk); + unregister_pernet_subsys(&crypto_netlink_net_ops); } module_init(crypto_user_init); |