[PATCH] net/bluetooth: make bluetooth socket can be created in net namespace

From: fupan.li
Date: Mon Aug 14 2017 - 03:16:51 EST


From: Fupan Li <fupan.li@xxxxxxxxxxxxx>

By now kernel only supported creating bluetooth socket in init_net
net namespace, which made bluetooth device cannot be accessed in
containers, this patch made bluetooth socket can be created in
net namespaces to fix this issue.

Signed-off-by: Fupan Li <fupan.li@xxxxxxxxxxxxx>
---
net/bluetooth/af_bluetooth.c | 2 +-
net/bluetooth/bnep/sock.c | 4 ++--
net/bluetooth/cmtp/sock.c | 4 ++--
net/bluetooth/hci_sock.c | 4 ++--
net/bluetooth/hidp/sock.c | 4 ++--
net/bluetooth/l2cap_sock.c | 4 ++--
net/bluetooth/rfcomm/core.c | 2 +-
net/bluetooth/rfcomm/sock.c | 4 ++--
net/bluetooth/sco.c | 4 ++--
9 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 91e3ba280706..eec5ac17faee 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -113,7 +113,7 @@ static int bt_sock_create(struct net *net, struct socket *sock, int proto,
{
int err;

- if (net != &init_net)
+ if (!net_eq(net, current->nsproxy->net_ns))
return -EAFNOSUPPORT;

if (proto < 0 || proto >= BT_MAX_PROTO)
diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c
index b5116fa9835e..742b8626ebcd 100644
--- a/net/bluetooth/bnep/sock.c
+++ b/net/bluetooth/bnep/sock.c
@@ -241,7 +241,7 @@ int __init bnep_sock_init(void)
goto error;
}

- err = bt_procfs_init(&init_net, "bnep", &bnep_sk_list, NULL);
+ err = bt_procfs_init(current->nsproxy->net_ns, "bnep", &bnep_sk_list, NULL);
if (err < 0) {
BT_ERR("Failed to create BNEP proc file");
bt_sock_unregister(BTPROTO_BNEP);
@@ -259,7 +259,7 @@ int __init bnep_sock_init(void)

void __exit bnep_sock_cleanup(void)
{
- bt_procfs_cleanup(&init_net, "bnep");
+ bt_procfs_cleanup(current->nsproxy->net_ns, "bnep");
bt_sock_unregister(BTPROTO_BNEP);
proto_unregister(&bnep_proto);
}
diff --git a/net/bluetooth/cmtp/sock.c b/net/bluetooth/cmtp/sock.c
index ce86a7bae844..d3d608489219 100644
--- a/net/bluetooth/cmtp/sock.c
+++ b/net/bluetooth/cmtp/sock.c
@@ -245,7 +245,7 @@ int cmtp_init_sockets(void)
goto error;
}

- err = bt_procfs_init(&init_net, "cmtp", &cmtp_sk_list, NULL);
+ err = bt_procfs_init(current->nsproxy->net_ns, "cmtp", &cmtp_sk_list, NULL);
if (err < 0) {
BT_ERR("Failed to create CMTP proc file");
bt_sock_unregister(BTPROTO_HIDP);
@@ -263,7 +263,7 @@ int cmtp_init_sockets(void)

void cmtp_cleanup_sockets(void)
{
- bt_procfs_cleanup(&init_net, "cmtp");
+ bt_procfs_cleanup(current->nsproxy->net_ns, "cmtp");
bt_sock_unregister(BTPROTO_CMTP);
proto_unregister(&cmtp_proto);
}
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 65d734c165bd..549c6c1f273c 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -2038,7 +2038,7 @@ int __init hci_sock_init(void)
goto error;
}

- err = bt_procfs_init(&init_net, "hci", &hci_sk_list, NULL);
+ err = bt_procfs_init(current->nsproxy->net_ns, "hci", &hci_sk_list, NULL);
if (err < 0) {
BT_ERR("Failed to create HCI proc file");
bt_sock_unregister(BTPROTO_HCI);
@@ -2056,7 +2056,7 @@ int __init hci_sock_init(void)

void hci_sock_cleanup(void)
{
- bt_procfs_cleanup(&init_net, "hci");
+ bt_procfs_cleanup(current->nsproxy->net_ns, "hci");
bt_sock_unregister(BTPROTO_HCI);
proto_unregister(&hci_sk_proto);
}
diff --git a/net/bluetooth/hidp/sock.c b/net/bluetooth/hidp/sock.c
index 008ba439bd62..19d4e9a40905 100644
--- a/net/bluetooth/hidp/sock.c
+++ b/net/bluetooth/hidp/sock.c
@@ -275,7 +275,7 @@ int __init hidp_init_sockets(void)
goto error;
}

- err = bt_procfs_init(&init_net, "hidp", &hidp_sk_list, NULL);
+ err = bt_procfs_init(current->nsproxy->net_ns, "hidp", &hidp_sk_list, NULL);
if (err < 0) {
BT_ERR("Failed to create HIDP proc file");
bt_sock_unregister(BTPROTO_HIDP);
@@ -293,7 +293,7 @@ int __init hidp_init_sockets(void)

void __exit hidp_cleanup_sockets(void)
{
- bt_procfs_cleanup(&init_net, "hidp");
+ bt_procfs_cleanup(current->nsproxy->net_ns, "hidp");
bt_sock_unregister(BTPROTO_HIDP);
proto_unregister(&hidp_proto);
}
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 67a8642f57ea..404bb1046c9c 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1685,7 +1685,7 @@ int __init l2cap_init_sockets(void)
goto error;
}

- err = bt_procfs_init(&init_net, "l2cap", &l2cap_sk_list,
+ err = bt_procfs_init(current->nsproxy->net_ns, "l2cap", &l2cap_sk_list,
NULL);
if (err < 0) {
BT_ERR("Failed to create L2CAP proc file");
@@ -1704,7 +1704,7 @@ int __init l2cap_init_sockets(void)

void l2cap_cleanup_sockets(void)
{
- bt_procfs_cleanup(&init_net, "l2cap");
+ bt_procfs_cleanup(current->nsproxy->net_ns, "l2cap");
bt_sock_unregister(BTPROTO_L2CAP);
proto_unregister(&l2cap_proto);
}
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 4a0b41d75c84..b02e6203bb9a 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -200,7 +200,7 @@ static int rfcomm_l2sock_create(struct socket **sock)

BT_DBG("");

- err = sock_create_kern(&init_net, PF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_L2CAP, sock);
+ err = sock_create_kern(current->nsproxy->net_ns, PF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_L2CAP, sock);
if (!err) {
struct sock *sk = (*sock)->sk;
sk->sk_data_ready = rfcomm_l2data_ready;
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 1aaccf637479..780146c642b0 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -1076,7 +1076,7 @@ int __init rfcomm_init_sockets(void)
goto error;
}

- err = bt_procfs_init(&init_net, "rfcomm", &rfcomm_sk_list, NULL);
+ err = bt_procfs_init(current->nsproxy->net_ns, "rfcomm", &rfcomm_sk_list, NULL);
if (err < 0) {
BT_ERR("Failed to create RFCOMM proc file");
bt_sock_unregister(BTPROTO_RFCOMM);
@@ -1101,7 +1101,7 @@ int __init rfcomm_init_sockets(void)

void __exit rfcomm_cleanup_sockets(void)
{
- bt_procfs_cleanup(&init_net, "rfcomm");
+ bt_procfs_cleanup(current->nsproxy->net_ns, "rfcomm");

debugfs_remove(rfcomm_sock_debugfs);

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 795e920a3281..0c9dcc2a6009 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -1229,7 +1229,7 @@ int __init sco_init(void)
goto error;
}

- err = bt_procfs_init(&init_net, "sco", &sco_sk_list, NULL);
+ err = bt_procfs_init(current->nsproxy->net_ns, "sco", &sco_sk_list, NULL);
if (err < 0) {
BT_ERR("Failed to create SCO proc file");
bt_sock_unregister(BTPROTO_SCO);
@@ -1255,7 +1255,7 @@ int __init sco_init(void)

void sco_exit(void)
{
- bt_procfs_cleanup(&init_net, "sco");
+ bt_procfs_cleanup(current->nsproxy->net_ns, "sco");

debugfs_remove(sco_debugfs);

--
2.11.0