| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Fri, 3 Feb 2012 15:36:19 +0100
From: Sjur Brændeland <sjur.brandeland@...ricsson.com>
To: netdev@...r.kernel.org, davem@...emloft.net
Cc: sjurbren@...il.com,
Sjur Brændeland <sjur.brandeland@...ricsson.com>
Subject: [PATCH 1/3] caif: Kill debugfs vars for caif socket
Kill off the debug-fs exposed varaibles from caif_socket.
Signed-off-by: Sjur Brændeland <sjur.brandeland@...ricsson.com>
---
net/caif/caif_socket.c | 113 +-----------------------------------------------
1 files changed, 1 insertions(+), 112 deletions(-)
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index a97d97a..5016fa5 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -43,34 +43,9 @@ enum caif_states {
#define TX_FLOW_ON_BIT 1
#define RX_FLOW_ON_BIT 2
-static struct dentry *debugfsdir;
-
-#ifdef CONFIG_DEBUG_FS
-struct debug_fs_counter {
- atomic_t caif_nr_socks;
- atomic_t caif_sock_create;
- atomic_t num_connect_req;
- atomic_t num_connect_resp;
- atomic_t num_connect_fail_resp;
- atomic_t num_disconnect;
- atomic_t num_remote_shutdown_ind;
- atomic_t num_tx_flow_off_ind;
- atomic_t num_tx_flow_on_ind;
- atomic_t num_rx_flow_off;
- atomic_t num_rx_flow_on;
-};
-static struct debug_fs_counter cnt;
-#define dbfs_atomic_inc(v) atomic_inc_return(v)
-#define dbfs_atomic_dec(v) atomic_dec_return(v)
-#else
-#define dbfs_atomic_inc(v) 0
-#define dbfs_atomic_dec(v) 0
-#endif
-
struct caifsock {
struct sock sk; /* must be first member */
struct cflayer layer;
- char name[CAIF_LAYER_NAME_SZ]; /* Used for debugging */
u32 flow_state;
struct caif_connect_request conn_req;
struct mutex readlock;
@@ -161,7 +136,6 @@ static int caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
atomic_read(&cf_sk->sk.sk_rmem_alloc),
sk_rcvbuf_lowwater(cf_sk));
set_rx_flow_off(cf_sk);
- dbfs_atomic_inc(&cnt.num_rx_flow_off);
caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ);
}
@@ -172,7 +146,6 @@ static int caif_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
set_rx_flow_off(cf_sk);
if (net_ratelimit())
pr_debug("sending flow OFF due to rmem_schedule\n");
- dbfs_atomic_inc(&cnt.num_rx_flow_off);
caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_OFF_REQ);
}
skb->dev = NULL;
@@ -233,14 +206,12 @@ static void caif_ctrl_cb(struct cflayer *layr,
switch (flow) {
case CAIF_CTRLCMD_FLOW_ON_IND:
/* OK from modem to start sending again */
- dbfs_atomic_inc(&cnt.num_tx_flow_on_ind);
set_tx_flow_on(cf_sk);
cf_sk->sk.sk_state_change(&cf_sk->sk);
break;
case CAIF_CTRLCMD_FLOW_OFF_IND:
/* Modem asks us to shut up */
- dbfs_atomic_inc(&cnt.num_tx_flow_off_ind);
set_tx_flow_off(cf_sk);
cf_sk->sk.sk_state_change(&cf_sk->sk);
break;
@@ -249,7 +220,6 @@ static void caif_ctrl_cb(struct cflayer *layr,
/* We're now connected */
caif_client_register_refcnt(&cf_sk->layer,
cfsk_hold, cfsk_put);
- dbfs_atomic_inc(&cnt.num_connect_resp);
cf_sk->sk.sk_state = CAIF_CONNECTED;
set_tx_flow_on(cf_sk);
cf_sk->sk.sk_state_change(&cf_sk->sk);
@@ -263,7 +233,6 @@ static void caif_ctrl_cb(struct cflayer *layr,
case CAIF_CTRLCMD_INIT_FAIL_RSP:
/* Connect request failed */
- dbfs_atomic_inc(&cnt.num_connect_fail_resp);
cf_sk->sk.sk_err = ECONNREFUSED;
cf_sk->sk.sk_state = CAIF_DISCONNECTED;
cf_sk->sk.sk_shutdown = SHUTDOWN_MASK;
@@ -277,7 +246,6 @@ static void caif_ctrl_cb(struct cflayer *layr,
case CAIF_CTRLCMD_REMOTE_SHUTDOWN_IND:
/* Modem has closed this connection, or device is down. */
- dbfs_atomic_inc(&cnt.num_remote_shutdown_ind);
cf_sk->sk.sk_shutdown = SHUTDOWN_MASK;
cf_sk->sk.sk_err = ECONNRESET;
set_rx_flow_on(cf_sk);
@@ -297,7 +265,6 @@ static void caif_check_flow_release(struct sock *sk)
return;
if (atomic_read(&sk->sk_rmem_alloc) <= sk_rcvbuf_lowwater(cf_sk)) {
- dbfs_atomic_inc(&cnt.num_rx_flow_on);
set_rx_flow_on(cf_sk);
caif_flow_ctrl(sk, CAIF_MODEMCMD_FLOW_ON_REQ);
}
@@ -856,7 +823,6 @@ static int caif_connect(struct socket *sock, struct sockaddr *uaddr,
/*ifindex = id of the interface.*/
cf_sk->conn_req.ifindex = cf_sk->sk.sk_bound_dev_if;
- dbfs_atomic_inc(&cnt.num_connect_req);
cf_sk->layer.receive = caif_sktrecv_cb;
err = caif_connect_client(sock_net(sk), &cf_sk->conn_req,
@@ -945,8 +911,6 @@ static int caif_release(struct socket *sock)
spin_unlock_bh(&sk->sk_receive_queue.lock);
sock->sk = NULL;
- dbfs_atomic_inc(&cnt.num_disconnect);
-
WARN_ON(IS_ERR(cf_sk->debugfs_socket_dir));
if (cf_sk->debugfs_socket_dir != NULL)
debugfs_remove_recursive(cf_sk->debugfs_socket_dir);
@@ -1054,14 +1018,12 @@ static void caif_sock_destructor(struct sock *sk)
return;
}
sk_stream_kill_queues(&cf_sk->sk);
- dbfs_atomic_dec(&cnt.caif_nr_socks);
caif_free_client(&cf_sk->layer);
}
static int caif_create(struct net *net, struct socket *sock, int protocol,
int kern)
{
- int num;
struct sock *sk = NULL;
struct caifsock *cf_sk = NULL;
static struct proto prot = {.name = "PF_CAIF",
@@ -1122,34 +1084,6 @@ static int caif_create(struct net *net, struct socket *sock, int protocol,
cf_sk->sk.sk_priority = CAIF_PRIO_NORMAL;
cf_sk->conn_req.link_selector = CAIF_LINK_LOW_LATENCY;
cf_sk->conn_req.protocol = protocol;
- /* Increase the number of sockets created. */
- dbfs_atomic_inc(&cnt.caif_nr_socks);
- num = dbfs_atomic_inc(&cnt.caif_sock_create);
-#ifdef CONFIG_DEBUG_FS
- if (!IS_ERR(debugfsdir)) {
-
- /* Fill in some information concerning the misc socket. */
- snprintf(cf_sk->name, sizeof(cf_sk->name), "cfsk%d", num);
-
- cf_sk->debugfs_socket_dir =
- debugfs_create_dir(cf_sk->name, debugfsdir);
-
- debugfs_create_u32("sk_state", S_IRUSR | S_IWUSR,
- cf_sk->debugfs_socket_dir,
- (u32 *) &cf_sk->sk.sk_state);
- debugfs_create_u32("flow_state", S_IRUSR | S_IWUSR,
- cf_sk->debugfs_socket_dir, &cf_sk->flow_state);
- debugfs_create_u32("sk_rmem_alloc", S_IRUSR | S_IWUSR,
- cf_sk->debugfs_socket_dir,
- (u32 *) &cf_sk->sk.sk_rmem_alloc);
- debugfs_create_u32("sk_wmem_alloc", S_IRUSR | S_IWUSR,
- cf_sk->debugfs_socket_dir,
- (u32 *) &cf_sk->sk.sk_wmem_alloc);
- debugfs_create_u32("identity", S_IRUSR | S_IWUSR,
- cf_sk->debugfs_socket_dir,
- (u32 *) &cf_sk->layer.id);
- }
-#endif
release_sock(&cf_sk->sk);
return 0;
}
@@ -1161,7 +1095,7 @@ static struct net_proto_family caif_family_ops = {
.owner = THIS_MODULE,
};
-static int af_caif_init(void)
+static int __init caif_sktinit_module(void)
{
int err = sock_register(&caif_family_ops);
if (!err)
@@ -1169,54 +1103,9 @@ static int af_caif_init(void)
return 0;
}
-static int __init caif_sktinit_module(void)
-{
-#ifdef CONFIG_DEBUG_FS
- debugfsdir = debugfs_create_dir("caif_sk", NULL);
- if (!IS_ERR(debugfsdir)) {
- debugfs_create_u32("num_sockets", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.caif_nr_socks);
- debugfs_create_u32("num_create", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.caif_sock_create);
- debugfs_create_u32("num_connect_req", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_connect_req);
- debugfs_create_u32("num_connect_resp", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_connect_resp);
- debugfs_create_u32("num_connect_fail_resp", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_connect_fail_resp);
- debugfs_create_u32("num_disconnect", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_disconnect);
- debugfs_create_u32("num_remote_shutdown_ind",
- S_IRUSR | S_IWUSR, debugfsdir,
- (u32 *) &cnt.num_remote_shutdown_ind);
- debugfs_create_u32("num_tx_flow_off_ind", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_tx_flow_off_ind);
- debugfs_create_u32("num_tx_flow_on_ind", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_tx_flow_on_ind);
- debugfs_create_u32("num_rx_flow_off", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_rx_flow_off);
- debugfs_create_u32("num_rx_flow_on", S_IRUSR | S_IWUSR,
- debugfsdir,
- (u32 *) &cnt.num_rx_flow_on);
- }
-#endif
- return af_caif_init();
-}
-
static void __exit caif_sktexit_module(void)
{
sock_unregister(PF_CAIF);
- if (debugfsdir != NULL)
- debugfs_remove_recursive(debugfsdir);
}
module_init(caif_sktinit_module);
module_exit(caif_sktexit_module);
--
1.7.5.4
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists