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-rw-r--r--net/bridge/netfilter/ebt_ulog.c2
-rw-r--r--net/core/rtnetlink.c2
-rw-r--r--net/decnet/netfilter/dn_rtmsg.c2
-rw-r--r--net/ipv4/fib_frontend.c3
-rw-r--r--net/ipv4/inet_diag.c2
-rw-r--r--net/ipv4/netfilter/ip_queue.c2
-rw-r--r--net/ipv4/netfilter/ipt_ULOG.c2
-rw-r--r--net/ipv6/netfilter/ip6_queue.c2
-rw-r--r--net/netfilter/nfnetlink.c2
-rw-r--r--net/netlink/af_netlink.c38
-rw-r--r--net/netlink/genetlink.c2
-rw-r--r--net/xfrm/xfrm_user.c2
12 files changed, 35 insertions, 26 deletions
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index 8b84cd40279..9411db62591 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -302,7 +302,7 @@ static int __init ebt_ulog_init(void)
}
ebtulognl = netlink_kernel_create(NETLINK_NFLOG, EBT_ULOG_MAXNLGROUPS,
- NULL, THIS_MODULE);
+ NULL, NULL, THIS_MODULE);
if (!ebtulognl)
ret = -ENOMEM;
else if ((ret = ebt_register_watcher(&ulog)))
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 5266df33705..648a7b6d15d 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -972,7 +972,7 @@ void __init rtnetlink_init(void)
panic("rtnetlink_init: cannot allocate rta_buf\n");
rtnl = netlink_kernel_create(NETLINK_ROUTE, RTNLGRP_MAX, rtnetlink_rcv,
- THIS_MODULE);
+ NULL, THIS_MODULE);
if (rtnl == NULL)
panic("rtnetlink_init: cannot initialize rtnetlink\n");
netlink_set_nonroot(NETLINK_ROUTE, NL_NONROOT_RECV);
diff --git a/net/decnet/netfilter/dn_rtmsg.c b/net/decnet/netfilter/dn_rtmsg.c
index 2ee47bab693..696234688cf 100644
--- a/net/decnet/netfilter/dn_rtmsg.c
+++ b/net/decnet/netfilter/dn_rtmsg.c
@@ -138,7 +138,7 @@ static int __init dn_rtmsg_init(void)
int rv = 0;
dnrmg = netlink_kernel_create(NETLINK_DNRTMSG, DNRNG_NLGRP_MAX,
- dnrmg_receive_user_sk, THIS_MODULE);
+ dnrmg_receive_user_sk, NULL, THIS_MODULE);
if (dnrmg == NULL) {
printk(KERN_ERR "dn_rtmsg: Cannot create netlink socket");
return -ENOMEM;
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 5bf718a3e49..953dd458c23 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -827,7 +827,8 @@ static void nl_fib_input(struct sock *sk, int len)
static void nl_fib_lookup_init(void)
{
- netlink_kernel_create(NETLINK_FIB_LOOKUP, 0, nl_fib_input, THIS_MODULE);
+ netlink_kernel_create(NETLINK_FIB_LOOKUP, 0, nl_fib_input, NULL,
+ THIS_MODULE);
}
static void fib_disable_ip(struct net_device *dev, int force)
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 0148f0e34ce..dbeacd8b0f9 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -893,7 +893,7 @@ static int __init inet_diag_init(void)
goto out;
idiagnl = netlink_kernel_create(NETLINK_INET_DIAG, 0, inet_diag_rcv,
- THIS_MODULE);
+ NULL, THIS_MODULE);
if (idiagnl == NULL)
goto out_free_table;
err = 0;
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 0d72693869e..702d94db19b 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -668,7 +668,7 @@ static int __init ip_queue_init(void)
netlink_register_notifier(&ipq_nl_notifier);
ipqnl = netlink_kernel_create(NETLINK_FIREWALL, 0, ipq_rcv_sk,
- THIS_MODULE);
+ NULL, THIS_MODULE);
if (ipqnl == NULL) {
printk(KERN_ERR "ip_queue: failed to create netlink socket\n");
goto cleanup_netlink_notifier;
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index a2bcba70af5..23b607b33b3 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -420,7 +420,7 @@ static int __init ipt_ulog_init(void)
setup_timer(&ulog_buffers[i].timer, ulog_timer, i);
nflognl = netlink_kernel_create(NETLINK_NFLOG, ULOG_MAXNLGROUPS, NULL,
- THIS_MODULE);
+ NULL, THIS_MODULE);
if (!nflognl)
return -ENOMEM;
diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index bfae9fdc466..0004db38af6 100644
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -657,7 +657,7 @@ static int __init ip6_queue_init(void)
struct proc_dir_entry *proc;
netlink_register_notifier(&ipq_nl_notifier);
- ipqnl = netlink_kernel_create(NETLINK_IP6_FW, 0, ipq_rcv_sk,
+ ipqnl = netlink_kernel_create(NETLINK_IP6_FW, 0, ipq_rcv_sk, NULL,
THIS_MODULE);
if (ipqnl == NULL) {
printk(KERN_ERR "ip6_queue: failed to create netlink socket\n");
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index b0da853eabe..8797e6953ef 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -265,7 +265,7 @@ static int __init nfnetlink_init(void)
printk("Netfilter messages via NETLINK v%s.\n", nfversion);
nfnl = netlink_kernel_create(NETLINK_NETFILTER, NFNLGRP_MAX,
- nfnetlink_rcv, THIS_MODULE);
+ nfnetlink_rcv, NULL, THIS_MODULE);
if (!nfnl) {
printk(KERN_ERR "cannot initialize nfnetlink!\n");
return -1;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 2cbf1682f63..ec16c9b7b3b 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -56,6 +56,7 @@
#include <linux/types.h>
#include <linux/audit.h>
#include <linux/selinux.h>
+#include <linux/mutex.h>
#include <net/sock.h>
#include <net/scm.h>
@@ -76,7 +77,8 @@ struct netlink_sock {
unsigned long state;
wait_queue_head_t wait;
struct netlink_callback *cb;
- spinlock_t cb_lock;
+ struct mutex *cb_mutex;
+ struct mutex cb_def_mutex;
void (*data_ready)(struct sock *sk, int bytes);
struct module *module;
};
@@ -108,6 +110,7 @@ struct netlink_table {
unsigned long *listeners;
unsigned int nl_nonroot;
unsigned int groups;
+ struct mutex *cb_mutex;
struct module *module;
int registered;
};
@@ -370,7 +373,8 @@ static struct proto netlink_proto = {
.obj_size = sizeof(struct netlink_sock),
};
-static int __netlink_create(struct socket *sock, int protocol)
+static int __netlink_create(struct socket *sock, struct mutex *cb_mutex,
+ int protocol)
{
struct sock *sk;
struct netlink_sock *nlk;
@@ -384,7 +388,8 @@ static int __netlink_create(struct socket *sock, int protocol)
sock_init_data(sock, sk);
nlk = nlk_sk(sk);
- spin_lock_init(&nlk->cb_lock);
+ nlk->cb_mutex = cb_mutex ? : &nlk->cb_def_mutex;
+ mutex_init(nlk->cb_mutex);
init_waitqueue_head(&nlk->wait);
sk->sk_destruct = netlink_sock_destruct;
@@ -395,6 +400,7 @@ static int __netlink_create(struct socket *sock, int protocol)
static int netlink_create(struct socket *sock, int protocol)
{
struct module *module = NULL;
+ struct mutex *cb_mutex;
struct netlink_sock *nlk;
int err = 0;
@@ -417,9 +423,10 @@ static int netlink_create(struct socket *sock, int protocol)
if (nl_table[protocol].registered &&
try_module_get(nl_table[protocol].module))
module = nl_table[protocol].module;
+ cb_mutex = nl_table[protocol].cb_mutex;
netlink_unlock_table();
- if ((err = __netlink_create(sock, protocol)) < 0)
+ if ((err = __netlink_create(sock, cb_mutex, protocol)) < 0)
goto out_module;
nlk = nlk_sk(sock->sk);
@@ -444,14 +451,14 @@ static int netlink_release(struct socket *sock)
sock_orphan(sk);
nlk = nlk_sk(sk);
- spin_lock(&nlk->cb_lock);
+ mutex_lock(nlk->cb_mutex);
if (nlk->cb) {
if (nlk->cb->done)
nlk->cb->done(nlk->cb);
netlink_destroy_callback(nlk->cb);
nlk->cb = NULL;
}
- spin_unlock(&nlk->cb_lock);
+ mutex_unlock(nlk->cb_mutex);
/* OK. Socket is unlinked, and, therefore,
no new packets will arrive */
@@ -1266,7 +1273,7 @@ static void netlink_data_ready(struct sock *sk, int len)
struct sock *
netlink_kernel_create(int unit, unsigned int groups,
void (*input)(struct sock *sk, int len),
- struct module *module)
+ struct mutex *cb_mutex, struct module *module)
{
struct socket *sock;
struct sock *sk;
@@ -1281,7 +1288,7 @@ netlink_kernel_create(int unit, unsigned int groups,
if (sock_create_lite(PF_NETLINK, SOCK_DGRAM, unit, &sock))
return NULL;
- if (__netlink_create(sock, unit) < 0)
+ if (__netlink_create(sock, cb_mutex, unit) < 0)
goto out_sock_release;
if (groups < 32)
@@ -1305,6 +1312,7 @@ netlink_kernel_create(int unit, unsigned int groups,
netlink_table_grab();
nl_table[unit].groups = groups;
nl_table[unit].listeners = listeners;
+ nl_table[unit].cb_mutex = cb_mutex;
nl_table[unit].module = module;
nl_table[unit].registered = 1;
netlink_table_ungrab();
@@ -1347,7 +1355,7 @@ static int netlink_dump(struct sock *sk)
if (!skb)
goto errout;
- spin_lock(&nlk->cb_lock);
+ mutex_lock(nlk->cb_mutex);
cb = nlk->cb;
if (cb == NULL) {
@@ -1358,7 +1366,7 @@ static int netlink_dump(struct sock *sk)
len = cb->dump(skb, cb);
if (len > 0) {
- spin_unlock(&nlk->cb_lock);
+ mutex_unlock(nlk->cb_mutex);
skb_queue_tail(&sk->sk_receive_queue, skb);
sk->sk_data_ready(sk, len);
return 0;
@@ -1376,13 +1384,13 @@ static int netlink_dump(struct sock *sk)
if (cb->done)
cb->done(cb);
nlk->cb = NULL;
- spin_unlock(&nlk->cb_lock);
+ mutex_unlock(nlk->cb_mutex);
netlink_destroy_callback(cb);
return 0;
errout_skb:
- spin_unlock(&nlk->cb_lock);
+ mutex_unlock(nlk->cb_mutex);
kfree_skb(skb);
errout:
return err;
@@ -1414,15 +1422,15 @@ int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
}
nlk = nlk_sk(sk);
/* A dump or destruction is in progress... */
- spin_lock(&nlk->cb_lock);
+ mutex_lock(nlk->cb_mutex);
if (nlk->cb || sock_flag(sk, SOCK_DEAD)) {
- spin_unlock(&nlk->cb_lock);
+ mutex_unlock(nlk->cb_mutex);
netlink_destroy_callback(cb);
sock_put(sk);
return -EBUSY;
}
nlk->cb = cb;
- spin_unlock(&nlk->cb_lock);
+ mutex_unlock(nlk->cb_mutex);
netlink_dump(sk);
sock_put(sk);
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index fac2e7a6dbe..6e31234a419 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -558,7 +558,7 @@ static int __init genl_init(void)
netlink_set_nonroot(NETLINK_GENERIC, NL_NONROOT_RECV);
genl_sock = netlink_kernel_create(NETLINK_GENERIC, GENL_MAX_ID,
- genl_rcv, THIS_MODULE);
+ genl_rcv, NULL, THIS_MODULE);
if (genl_sock == NULL)
panic("GENL: Cannot initialize generic netlink\n");
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 2ff968373f1..88659edc9b1 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -2444,7 +2444,7 @@ static int __init xfrm_user_init(void)
printk(KERN_INFO "Initializing XFRM netlink socket\n");
nlsk = netlink_kernel_create(NETLINK_XFRM, XFRMNLGRP_MAX,
- xfrm_netlink_rcv, THIS_MODULE);
+ xfrm_netlink_rcv, NULL, THIS_MODULE);
if (nlsk == NULL)
return -ENOMEM;
rcu_assign_pointer(xfrm_nl, nlsk);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-02 06:27:34 +0000