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-rw-r--r--net/bluetooth/bnep/sock.c19
-rw-r--r--net/bluetooth/cmtp/sock.c19
-rw-r--r--net/bluetooth/hidp/core.c10
-rw-r--r--net/bluetooth/hidp/hidp.h2
-rw-r--r--net/bluetooth/hidp/sock.c79
5 files changed, 80 insertions, 49 deletions
diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c
index 00deacdcb51c..cfd83c5521ae 100644
--- a/net/bluetooth/bnep/sock.c
+++ b/net/bluetooth/bnep/sock.c
@@ -49,18 +49,17 @@ static int bnep_sock_release(struct socket *sock)
return 0;
}
-static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+static int do_bnep_sock_ioctl(struct socket *sock, unsigned int cmd, void __user *argp)
{
struct bnep_connlist_req cl;
struct bnep_connadd_req ca;
struct bnep_conndel_req cd;
struct bnep_conninfo ci;
struct socket *nsock;
- void __user *argp = (void __user *)arg;
__u32 supp_feat = BIT(BNEP_SETUP_RESPONSE);
int err;
- BT_DBG("cmd %x arg %lx", cmd, arg);
+ BT_DBG("cmd %x arg %p", cmd, argp);
switch (cmd) {
case BNEPCONNADD:
@@ -134,16 +133,22 @@ static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long
return 0;
}
+static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ return do_bnep_sock_ioctl(sock, cmd, (void __user *)arg);
+}
+
#ifdef CONFIG_COMPAT
static int bnep_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
+ void __user *argp = compat_ptr(arg);
if (cmd == BNEPGETCONNLIST) {
struct bnep_connlist_req cl;
+ unsigned __user *p = argp;
u32 uci;
int err;
- if (get_user(cl.cnum, (u32 __user *) arg) ||
- get_user(uci, (u32 __user *) (arg + 4)))
+ if (get_user(cl.cnum, p) || get_user(uci, p + 1))
return -EFAULT;
cl.ci = compat_ptr(uci);
@@ -153,13 +158,13 @@ static int bnep_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigne
err = bnep_get_connlist(&cl);
- if (!err && put_user(cl.cnum, (u32 __user *) arg))
+ if (!err && put_user(cl.cnum, p))
err = -EFAULT;
return err;
}
- return bnep_sock_ioctl(sock, cmd, arg);
+ return do_bnep_sock_ioctl(sock, cmd, argp);
}
#endif
diff --git a/net/bluetooth/cmtp/sock.c b/net/bluetooth/cmtp/sock.c
index e08f28fadd65..defdd4871919 100644
--- a/net/bluetooth/cmtp/sock.c
+++ b/net/bluetooth/cmtp/sock.c
@@ -63,17 +63,16 @@ static int cmtp_sock_release(struct socket *sock)
return 0;
}
-static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+static int do_cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, void __user *argp)
{
struct cmtp_connadd_req ca;
struct cmtp_conndel_req cd;
struct cmtp_connlist_req cl;
struct cmtp_conninfo ci;
struct socket *nsock;
- void __user *argp = (void __user *)arg;
int err;
- BT_DBG("cmd %x arg %lx", cmd, arg);
+ BT_DBG("cmd %x arg %p", cmd, argp);
switch (cmd) {
case CMTPCONNADD:
@@ -137,16 +136,22 @@ static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long
return -EINVAL;
}
+static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ return do_cmtp_sock_ioctl(sock, cmd, (void __user *)arg);
+}
+
#ifdef CONFIG_COMPAT
static int cmtp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
+ void __user *argp = compat_ptr(arg);
if (cmd == CMTPGETCONNLIST) {
struct cmtp_connlist_req cl;
+ u32 __user *p = argp;
u32 uci;
int err;
- if (get_user(cl.cnum, (u32 __user *) arg) ||
- get_user(uci, (u32 __user *) (arg + 4)))
+ if (get_user(cl.cnum, p) || get_user(uci, p + 1))
return -EFAULT;
cl.ci = compat_ptr(uci);
@@ -156,13 +161,13 @@ static int cmtp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigne
err = cmtp_get_connlist(&cl);
- if (!err && put_user(cl.cnum, (u32 __user *) arg))
+ if (!err && put_user(cl.cnum, p))
err = -EFAULT;
return err;
}
- return cmtp_sock_ioctl(sock, cmd, arg);
+ return do_cmtp_sock_ioctl(sock, cmd, argp);
}
#endif
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 3734dc1788b4..a442e21f3894 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -649,7 +649,7 @@ static void hidp_process_transmit(struct hidp_session *session,
}
static int hidp_setup_input(struct hidp_session *session,
- struct hidp_connadd_req *req)
+ const struct hidp_connadd_req *req)
{
struct input_dev *input;
int i;
@@ -748,7 +748,7 @@ EXPORT_SYMBOL_GPL(hidp_hid_driver);
/* This function sets up the hid device. It does not add it
to the HID system. That is done in hidp_add_connection(). */
static int hidp_setup_hid(struct hidp_session *session,
- struct hidp_connadd_req *req)
+ const struct hidp_connadd_req *req)
{
struct hid_device *hid;
int err;
@@ -807,7 +807,7 @@ fault:
/* initialize session devices */
static int hidp_session_dev_init(struct hidp_session *session,
- struct hidp_connadd_req *req)
+ const struct hidp_connadd_req *req)
{
int ret;
@@ -906,7 +906,7 @@ static void hidp_session_dev_work(struct work_struct *work)
static int hidp_session_new(struct hidp_session **out, const bdaddr_t *bdaddr,
struct socket *ctrl_sock,
struct socket *intr_sock,
- struct hidp_connadd_req *req,
+ const struct hidp_connadd_req *req,
struct l2cap_conn *conn)
{
struct hidp_session *session;
@@ -1338,7 +1338,7 @@ static int hidp_verify_sockets(struct socket *ctrl_sock,
return 0;
}
-int hidp_connection_add(struct hidp_connadd_req *req,
+int hidp_connection_add(const struct hidp_connadd_req *req,
struct socket *ctrl_sock,
struct socket *intr_sock)
{
diff --git a/net/bluetooth/hidp/hidp.h b/net/bluetooth/hidp/hidp.h
index 8798492a6e99..6ef88d0a1919 100644
--- a/net/bluetooth/hidp/hidp.h
+++ b/net/bluetooth/hidp/hidp.h
@@ -122,7 +122,7 @@ struct hidp_connlist_req {
struct hidp_conninfo __user *ci;
};
-int hidp_connection_add(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock);
+int hidp_connection_add(const struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock);
int hidp_connection_del(struct hidp_conndel_req *req);
int hidp_get_connlist(struct hidp_connlist_req *req);
int hidp_get_conninfo(struct hidp_conninfo *ci);
diff --git a/net/bluetooth/hidp/sock.c b/net/bluetooth/hidp/sock.c
index 1eaac01f85de..9f85a1943be9 100644
--- a/net/bluetooth/hidp/sock.c
+++ b/net/bluetooth/hidp/sock.c
@@ -46,9 +46,8 @@ static int hidp_sock_release(struct socket *sock)
return 0;
}
-static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+static int do_hidp_sock_ioctl(struct socket *sock, unsigned int cmd, void __user *argp)
{
- void __user *argp = (void __user *) arg;
struct hidp_connadd_req ca;
struct hidp_conndel_req cd;
struct hidp_connlist_req cl;
@@ -57,7 +56,7 @@ static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long
struct socket *isock;
int err;
- BT_DBG("cmd %x arg %lx", cmd, arg);
+ BT_DBG("cmd %x arg %p", cmd, argp);
switch (cmd) {
case HIDPCONNADD:
@@ -122,6 +121,11 @@ static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long
return -EINVAL;
}
+static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ return do_hidp_sock_ioctl(sock, cmd, (void __user *)arg);
+}
+
#ifdef CONFIG_COMPAT
struct compat_hidp_connadd_req {
int ctrl_sock; /* Connected control socket */
@@ -141,13 +145,15 @@ struct compat_hidp_connadd_req {
static int hidp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
+ void __user *argp = compat_ptr(arg);
+ int err;
+
if (cmd == HIDPGETCONNLIST) {
struct hidp_connlist_req cl;
+ u32 __user *p = argp;
u32 uci;
- int err;
- if (get_user(cl.cnum, (u32 __user *) arg) ||
- get_user(uci, (u32 __user *) (arg + 4)))
+ if (get_user(cl.cnum, p) || get_user(uci, p + 1))
return -EFAULT;
cl.ci = compat_ptr(uci);
@@ -157,39 +163,54 @@ static int hidp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigne
err = hidp_get_connlist(&cl);
- if (!err && put_user(cl.cnum, (u32 __user *) arg))
+ if (!err && put_user(cl.cnum, p))
err = -EFAULT;
return err;
} else if (cmd == HIDPCONNADD) {
- struct compat_hidp_connadd_req ca;
- struct hidp_connadd_req __user *uca;
+ struct compat_hidp_connadd_req ca32;
+ struct hidp_connadd_req ca;
+ struct socket *csock;
+ struct socket *isock;
- uca = compat_alloc_user_space(sizeof(*uca));
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
- if (copy_from_user(&ca, (void __user *) arg, sizeof(ca)))
+ if (copy_from_user(&ca32, (void __user *) arg, sizeof(ca32)))
return -EFAULT;
- if (put_user(ca.ctrl_sock, &uca->ctrl_sock) ||
- put_user(ca.intr_sock, &uca->intr_sock) ||
- put_user(ca.parser, &uca->parser) ||
- put_user(ca.rd_size, &uca->rd_size) ||
- put_user(compat_ptr(ca.rd_data), &uca->rd_data) ||
- put_user(ca.country, &uca->country) ||
- put_user(ca.subclass, &uca->subclass) ||
- put_user(ca.vendor, &uca->vendor) ||
- put_user(ca.product, &uca->product) ||
- put_user(ca.version, &uca->version) ||
- put_user(ca.flags, &uca->flags) ||
- put_user(ca.idle_to, &uca->idle_to) ||
- copy_to_user(&uca->name[0], &ca.name[0], 128))
- return -EFAULT;
+ ca.ctrl_sock = ca32.ctrl_sock;
+ ca.intr_sock = ca32.intr_sock;
+ ca.parser = ca32.parser;
+ ca.rd_size = ca32.rd_size;
+ ca.rd_data = compat_ptr(ca32.rd_data);
+ ca.country = ca32.country;
+ ca.subclass = ca32.subclass;
+ ca.vendor = ca32.vendor;
+ ca.product = ca32.product;
+ ca.version = ca32.version;
+ ca.flags = ca32.flags;
+ ca.idle_to = ca32.idle_to;
+ memcpy(ca.name, ca32.name, 128);
+
+ csock = sockfd_lookup(ca.ctrl_sock, &err);
+ if (!csock)
+ return err;
- arg = (unsigned long) uca;
+ isock = sockfd_lookup(ca.intr_sock, &err);
+ if (!isock) {
+ sockfd_put(csock);
+ return err;
+ }
- /* Fall through. We don't actually write back any _changes_
- to the structure anyway, so there's no need to copy back
- into the original compat version */
+ err = hidp_connection_add(&ca, csock, isock);
+ if (!err && copy_to_user(argp, &ca32, sizeof(ca32)))
+ err = -EFAULT;
+
+ sockfd_put(csock);
+ sockfd_put(isock);
+
+ return err;
}
return hidp_sock_ioctl(sock, cmd, arg);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 14:59:28 +0000