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net: l2tp: Standardize logging styles 

Use more current logging styles.

Add pr_fmt to prefix output appropriately.
Convert printks to pr_<level>.
Convert PRINTK macros to new l2tp_<level> macros.
Neaten some <foo>_refcount debugging macros.
Use print_hex_dump_bytes instead of hand-coded loops.
Coalesce formats and align arguments.

Some KERN_DEBUG output is not now emitted unless
dynamic_debugging is enabled.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joe Perches 2012-05-16 09:55:56 +00:00 committed by David S. Miller
parent 028940342a
commit a4ca44fa57
8 changed files with 213 additions and 221 deletions
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216
net/l2tp/l2tp_core.c
View File

@ -18,6 +18,8 @@
* published by the Free Software Foundation.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/string.h>
#include <linux/list.h>
@ -86,12 +88,6 @@
/* Default trace flags */
#define L2TP_DEFAULT_DEBUG_FLAGS 0
#define PRINTK(_mask, _type, _lvl, _fmt, args...) \
do { \
if ((_mask) & (_type)) \
printk(_lvl "L2TP: " _fmt, ##args); \
} while (0)
/* Private data stored for received packets in the skb.
*/
struct l2tp_skb_cb {
@ -141,14 +137,20 @@ static inline void l2tp_tunnel_dec_refcount_1(struct l2tp_tunnel *tunnel)
l2tp_tunnel_free(tunnel);
}
#ifdef L2TP_REFCNT_DEBUG
#define l2tp_tunnel_inc_refcount(_t) do { \
printk(KERN_DEBUG "l2tp_tunnel_inc_refcount: %s:%d %s: cnt=%d\n", __func__, __LINE__, (_t)->name, atomic_read(&_t->ref_count)); \
l2tp_tunnel_inc_refcount_1(_t); \
} while (0)
#define l2tp_tunnel_dec_refcount(_t) do { \
printk(KERN_DEBUG "l2tp_tunnel_dec_refcount: %s:%d %s: cnt=%d\n", __func__, __LINE__, (_t)->name, atomic_read(&_t->ref_count)); \
l2tp_tunnel_dec_refcount_1(_t); \
} while (0)
#define l2tp_tunnel_inc_refcount(_t) \
do { \
pr_debug("l2tp_tunnel_inc_refcount: %s:%d %s: cnt=%d\n", \
__func__, __LINE__, (_t)->name, \
atomic_read(&_t->ref_count)); \
l2tp_tunnel_inc_refcount_1(_t); \
} while (0)
#define l2tp_tunnel_dec_refcount(_t)
do { \
pr_debug("l2tp_tunnel_dec_refcount: %s:%d %s: cnt=%d\n", \
__func__, __LINE__, (_t)->name, \
atomic_read(&_t->ref_count)); \
l2tp_tunnel_dec_refcount_1(_t); \
} while (0)
#else
#define l2tp_tunnel_inc_refcount(t) l2tp_tunnel_inc_refcount_1(t)
#define l2tp_tunnel_dec_refcount(t) l2tp_tunnel_dec_refcount_1(t)
@ -337,10 +339,10 @@ static void l2tp_recv_queue_skb(struct l2tp_session *session, struct sk_buff *sk
skb_queue_walk_safe(&session->reorder_q, skbp, tmp) {
if (L2TP_SKB_CB(skbp)->ns > ns) {
__skb_queue_before(&session->reorder_q, skbp, skb);
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_DEBUG,
"%s: pkt %hu, inserted before %hu, reorder_q len=%d\n",
session->name, ns, L2TP_SKB_CB(skbp)->ns,
skb_queue_len(&session->reorder_q));
l2tp_dbg(session, L2TP_MSG_SEQ,
"%s: pkt %hu, inserted before %hu, reorder_q len=%d\n",
session->name, ns, L2TP_SKB_CB(skbp)->ns,
skb_queue_len(&session->reorder_q));
u64_stats_update_begin(&sstats->syncp);
sstats->rx_oos_packets++;
u64_stats_update_end(&sstats->syncp);
@ -386,8 +388,8 @@ static void l2tp_recv_dequeue_skb(struct l2tp_session *session, struct sk_buff *
else
session->nr &= 0xffffff;
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_DEBUG,
"%s: updated nr to %hu\n", session->name, session->nr);
l2tp_dbg(session, L2TP_MSG_SEQ, "%s: updated nr to %hu\n",
session->name, session->nr);
}
/* call private receive handler */
@ -422,12 +424,11 @@ start:
sstats->rx_seq_discards++;
sstats->rx_errors++;
u64_stats_update_end(&sstats->syncp);
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_DEBUG,
"%s: oos pkt %u len %d discarded (too old), "
"waiting for %u, reorder_q_len=%d\n",
session->name, L2TP_SKB_CB(skb)->ns,
L2TP_SKB_CB(skb)->length, session->nr,
skb_queue_len(&session->reorder_q));
l2tp_dbg(session, L2TP_MSG_SEQ,
"%s: oos pkt %u len %d discarded (too old), waiting for %u, reorder_q_len=%d\n",
session->name, L2TP_SKB_CB(skb)->ns,
L2TP_SKB_CB(skb)->length, session->nr,
skb_queue_len(&session->reorder_q));
session->reorder_skip = 1;
__skb_unlink(skb, &session->reorder_q);
kfree_skb(skb);
@ -438,20 +439,19 @@ start:
if (L2TP_SKB_CB(skb)->has_seq) {
if (session->reorder_skip) {
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_DEBUG,
"%s: advancing nr to next pkt: %u -> %u",
session->name, session->nr,
L2TP_SKB_CB(skb)->ns);
l2tp_dbg(session, L2TP_MSG_SEQ,
"%s: advancing nr to next pkt: %u -> %u",
session->name, session->nr,
L2TP_SKB_CB(skb)->ns);
session->reorder_skip = 0;
session->nr = L2TP_SKB_CB(skb)->ns;
}
if (L2TP_SKB_CB(skb)->ns != session->nr) {
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_DEBUG,
"%s: holding oos pkt %u len %d, "
"waiting for %u, reorder_q_len=%d\n",
session->name, L2TP_SKB_CB(skb)->ns,
L2TP_SKB_CB(skb)->length, session->nr,
skb_queue_len(&session->reorder_q));
l2tp_dbg(session, L2TP_MSG_SEQ,
"%s: holding oos pkt %u len %d, waiting for %u, reorder_q_len=%d\n",
session->name, L2TP_SKB_CB(skb)->ns,
L2TP_SKB_CB(skb)->length, session->nr,
skb_queue_len(&session->reorder_q));
goto out;
}
}
@ -595,9 +595,10 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
/* Parse and check optional cookie */
if (session->peer_cookie_len > 0) {
if (memcmp(ptr, &session->peer_cookie[0], session->peer_cookie_len)) {
PRINTK(tunnel->debug, L2TP_MSG_DATA, KERN_INFO,
"%s: cookie mismatch (%u/%u). Discarding.\n",
tunnel->name, tunnel->tunnel_id, session->session_id);
l2tp_info(tunnel, L2TP_MSG_DATA,
"%s: cookie mismatch (%u/%u). Discarding.\n",
tunnel->name, tunnel->tunnel_id,
session->session_id);
u64_stats_update_begin(&sstats->syncp);
sstats->rx_cookie_discards++;
u64_stats_update_end(&sstats->syncp);
@ -626,9 +627,9 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
L2TP_SKB_CB(skb)->ns = ns;
L2TP_SKB_CB(skb)->has_seq = 1;
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_DEBUG,
"%s: recv data ns=%u, nr=%u, session nr=%u\n",
session->name, ns, nr, session->nr);
l2tp_dbg(session, L2TP_MSG_SEQ,
"%s: recv data ns=%u, nr=%u, session nr=%u\n",
session->name, ns, nr, session->nr);
}
} else if (session->l2specific_type == L2TP_L2SPECTYPE_DEFAULT) {
u32 l2h = ntohl(*(__be32 *) ptr);
@ -640,9 +641,9 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
L2TP_SKB_CB(skb)->ns = ns;
L2TP_SKB_CB(skb)->has_seq = 1;
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_DEBUG,
"%s: recv data ns=%u, session nr=%u\n",
session->name, ns, session->nr);
l2tp_dbg(session, L2TP_MSG_SEQ,
"%s: recv data ns=%u, session nr=%u\n",
session->name, ns, session->nr);
}
}
@ -655,9 +656,9 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
* configure it so.
*/
if ((!session->lns_mode) && (!session->send_seq)) {
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_INFO,
"%s: requested to enable seq numbers by LNS\n",
session->name);
l2tp_info(session, L2TP_MSG_SEQ,
"%s: requested to enable seq numbers by LNS\n",
session->name);
session->send_seq = -1;
l2tp_session_set_header_len(session, tunnel->version);
}
@ -666,9 +667,9 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
* If user has configured mandatory sequence numbers, discard.
*/
if (session->recv_seq) {
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_WARNING,
"%s: recv data has no seq numbers when required. "
"Discarding\n", session->name);
l2tp_warn(session, L2TP_MSG_SEQ,
"%s: recv data has no seq numbers when required. Discarding.\n",
session->name);
u64_stats_update_begin(&sstats->syncp);
sstats->rx_seq_discards++;
u64_stats_update_end(&sstats->syncp);
@ -681,15 +682,15 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
* LAC is broken. Discard the frame.
*/
if ((!session->lns_mode) && (session->send_seq)) {
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_INFO,
"%s: requested to disable seq numbers by LNS\n",
session->name);
l2tp_info(session, L2TP_MSG_SEQ,
"%s: requested to disable seq numbers by LNS\n",
session->name);
session->send_seq = 0;
l2tp_session_set_header_len(session, tunnel->version);
} else if (session->send_seq) {
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_WARNING,
"%s: recv data has no seq numbers when required. "
"Discarding\n", session->name);
l2tp_warn(session, L2TP_MSG_SEQ,
"%s: recv data has no seq numbers when required. Discarding.\n",
session->name);
u64_stats_update_begin(&sstats->syncp);
sstats->rx_seq_discards++;
u64_stats_update_end(&sstats->syncp);
@ -749,12 +750,11 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
u64_stats_update_begin(&sstats->syncp);
sstats->rx_seq_discards++;
u64_stats_update_end(&sstats->syncp);
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_DEBUG,
"%s: oos pkt %u len %d discarded, "
"waiting for %u, reorder_q_len=%d\n",
session->name, L2TP_SKB_CB(skb)->ns,
L2TP_SKB_CB(skb)->length, session->nr,
skb_queue_len(&session->reorder_q));
l2tp_dbg(session, L2TP_MSG_SEQ,
"%s: oos pkt %u len %d discarded, waiting for %u, reorder_q_len=%d\n",
session->name, L2TP_SKB_CB(skb)->ns,
L2TP_SKB_CB(skb)->length, session->nr,
skb_queue_len(&session->reorder_q));
goto discard;
}
skb_queue_tail(&session->reorder_q, skb);
@ -800,7 +800,6 @@ static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
unsigned char *ptr, *optr;
u16 hdrflags;
u32 tunnel_id, session_id;
int offset;
u16 version;
int length;
struct l2tp_stats *tstats;
@ -813,8 +812,9 @@ static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
/* Short packet? */
if (!pskb_may_pull(skb, L2TP_HDR_SIZE_SEQ)) {
PRINTK(tunnel->debug, L2TP_MSG_DATA, KERN_INFO,
"%s: recv short packet (len=%d)\n", tunnel->name, skb->len);
l2tp_info(tunnel, L2TP_MSG_DATA,
"%s: recv short packet (len=%d)\n",
tunnel->name, skb->len);
goto error;
}
@ -824,14 +824,8 @@ static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
if (!pskb_may_pull(skb, length))
goto error;
printk(KERN_DEBUG "%s: recv: ", tunnel->name);
offset = 0;
do {
printk(" %02X", skb->data[offset]);
} while (++offset < length);
printk("\n");
pr_debug("%s: recv\n", tunnel->name);
print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, skb->data, length);
}
/* Point to L2TP header */
@ -843,9 +837,9 @@ static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
/* Check protocol version */
version = hdrflags & L2TP_HDR_VER_MASK;
if (version != tunnel->version) {
PRINTK(tunnel->debug, L2TP_MSG_DATA, KERN_INFO,
"%s: recv protocol version mismatch: got %d expected %d\n",
tunnel->name, version, tunnel->version);
l2tp_info(tunnel, L2TP_MSG_DATA,
"%s: recv protocol version mismatch: got %d expected %d\n",
tunnel->name, version, tunnel->version);
goto error;
}
@ -854,8 +848,9 @@ static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
/* If type is control packet, it is handled by userspace. */
if (hdrflags & L2TP_HDRFLAG_T) {
PRINTK(tunnel->debug, L2TP_MSG_DATA, KERN_DEBUG,
"%s: recv control packet, len=%d\n", tunnel->name, length);
l2tp_dbg(tunnel, L2TP_MSG_DATA,
"%s: recv control packet, len=%d\n",
tunnel->name, length);
goto error;
}
@ -883,9 +878,9 @@ static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
session = l2tp_session_find(tunnel->l2tp_net, tunnel, session_id);
if (!session || !session->recv_skb) {
/* Not found? Pass to userspace to deal with */
PRINTK(tunnel->debug, L2TP_MSG_DATA, KERN_INFO,
"%s: no session found (%u/%u). Passing up.\n",
tunnel->name, tunnel_id, session_id);
l2tp_info(tunnel, L2TP_MSG_DATA,
"%s: no session found (%u/%u). Passing up.\n",
tunnel->name, tunnel_id, session_id);
goto error;
}
@ -925,8 +920,8 @@ int l2tp_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
if (tunnel == NULL)
goto pass_up;
PRINTK(tunnel->debug, L2TP_MSG_DATA, KERN_DEBUG,
"%s: received %d bytes\n", tunnel->name, skb->len);
l2tp_dbg(tunnel, L2TP_MSG_DATA, "%s: received %d bytes\n",
tunnel->name, skb->len);
if (l2tp_udp_recv_core(tunnel, skb, tunnel->recv_payload_hook))
goto pass_up_put;
@ -968,8 +963,8 @@ static int l2tp_build_l2tpv2_header(struct l2tp_session *session, void *buf)
*bufp++ = 0;
session->ns++;
session->ns &= 0xffff;
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_DEBUG,
"%s: updated ns to %u\n", session->name, session->ns);
l2tp_dbg(session, L2TP_MSG_SEQ, "%s: updated ns to %u\n",
session->name, session->ns);
}
return bufp - optr;
@ -1005,8 +1000,9 @@ static int l2tp_build_l2tpv3_header(struct l2tp_session *session, void *buf)
l2h = 0x40000000 | session->ns;
session->ns++;
session->ns &= 0xffffff;
PRINTK(session->debug, L2TP_MSG_SEQ, KERN_DEBUG,
"%s: updated ns to %u\n", session->name, session->ns);
l2tp_dbg(session, L2TP_MSG_SEQ,
"%s: updated ns to %u\n",
session->name, session->ns);
}
*((__be32 *) bufp) = htonl(l2h);
@ -1029,27 +1025,19 @@ static int l2tp_xmit_core(struct l2tp_session *session, struct sk_buff *skb,
/* Debug */
if (session->send_seq)
PRINTK(session->debug, L2TP_MSG_DATA, KERN_DEBUG,
"%s: send %Zd bytes, ns=%u\n", session->name,
data_len, session->ns - 1);
l2tp_dbg(session, L2TP_MSG_DATA, "%s: send %Zd bytes, ns=%u\n",
session->name, data_len, session->ns - 1);
else
PRINTK(session->debug, L2TP_MSG_DATA, KERN_DEBUG,
"%s: send %Zd bytes\n", session->name, data_len);
l2tp_dbg(session, L2TP_MSG_DATA, "%s: send %Zd bytes\n",
session->name, data_len);
if (session->debug & L2TP_MSG_DATA) {
int i;
int uhlen = (tunnel->encap == L2TP_ENCAPTYPE_UDP) ? sizeof(struct udphdr) : 0;
unsigned char *datap = skb->data + uhlen;
printk(KERN_DEBUG "%s: xmit:", session->name);
for (i = 0; i < (len - uhlen); i++) {
printk(" %02X", *datap++);
if (i == 31) {
printk(" ...");
break;
}
}
printk("\n");
pr_debug("%s: xmit\n", session->name);
print_hex_dump_bytes("", DUMP_PREFIX_OFFSET,
datap, min_t(size_t, 32, len - uhlen));
}
/* Queue the packet to IP for output */
@ -1248,8 +1236,7 @@ static void l2tp_tunnel_destruct(struct sock *sk)
if (tunnel == NULL)
goto end;
PRINTK(tunnel->debug, L2TP_MSG_CONTROL, KERN_INFO,
"%s: closing...\n", tunnel->name);
l2tp_info(tunnel, L2TP_MSG_CONTROL, "%s: closing...\n", tunnel->name);
/* Close all sessions */
l2tp_tunnel_closeall(tunnel);
@ -1291,8 +1278,8 @@ static void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel)
BUG_ON(tunnel == NULL);
PRINTK(tunnel->debug, L2TP_MSG_CONTROL, KERN_INFO,
"%s: closing all sessions...\n", tunnel->name);
l2tp_info(tunnel, L2TP_MSG_CONTROL, "%s: closing all sessions...\n",
tunnel->name);
write_lock_bh(&tunnel->hlist_lock);
for (hash = 0; hash < L2TP_HASH_SIZE; hash++) {
@ -1300,8 +1287,8 @@ again:
hlist_for_each_safe(walk, tmp, &tunnel->session_hlist[hash]) {
session = hlist_entry(walk, struct l2tp_session, hlist);
PRINTK(session->debug, L2TP_MSG_CONTROL, KERN_INFO,
"%s: closing session\n", session->name);
l2tp_info(session, L2TP_MSG_CONTROL,
"%s: closing session\n", session->name);
hlist_del_init(&session->hlist);
@ -1354,8 +1341,7 @@ static void l2tp_tunnel_free(struct l2tp_tunnel *tunnel)
BUG_ON(atomic_read(&tunnel->ref_count) != 0);
BUG_ON(tunnel->sock != NULL);
PRINTK(tunnel->debug, L2TP_MSG_CONTROL, KERN_INFO,
"%s: free...\n", tunnel->name);
l2tp_info(tunnel, L2TP_MSG_CONTROL, "%s: free...\n", tunnel->name);
/* Remove from tunnel list */
spin_lock_bh(&pn->l2tp_tunnel_list_lock);
@ -1536,7 +1522,7 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
err = -EBADF;
sock = sockfd_lookup(fd, &err);
if (!sock) {
printk(KERN_ERR "tunl %hu: sockfd_lookup(fd=%d) returned %d\n",
pr_err("tunl %hu: sockfd_lookup(fd=%d) returned %d\n",
tunnel_id, fd, err);
goto err;
}
@ -1552,7 +1538,7 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
case L2TP_ENCAPTYPE_UDP:
err = -EPROTONOSUPPORT;
if (sk->sk_protocol != IPPROTO_UDP) {
printk(KERN_ERR "tunl %hu: fd %d wrong protocol, got %d, expected %d\n",
pr_err("tunl %hu: fd %d wrong protocol, got %d, expected %d\n",
tunnel_id, fd, sk->sk_protocol, IPPROTO_UDP);
goto err;
}
@ -1560,7 +1546,7 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
case L2TP_ENCAPTYPE_IP:
err = -EPROTONOSUPPORT;
if (sk->sk_protocol != IPPROTO_L2TP) {
printk(KERN_ERR "tunl %hu: fd %d wrong protocol, got %d, expected %d\n",
pr_err("tunl %hu: fd %d wrong protocol, got %d, expected %d\n",
tunnel_id, fd, sk->sk_protocol, IPPROTO_L2TP);
goto err;
}
@ -1868,7 +1854,7 @@ static int __init l2tp_init(void)
if (rc)
goto out;
printk(KERN_INFO "L2TP core driver, %s\n", L2TP_DRV_VERSION);
pr_info("L2TP core driver, %s\n", L2TP_DRV_VERSION);
out:
return rc;

35
net/l2tp/l2tp_core.h
View File

@ -261,17 +261,36 @@ static inline void l2tp_session_dec_refcount_1(struct l2tp_session *session)
}
#ifdef L2TP_REFCNT_DEBUG
#define l2tp_session_inc_refcount(_s) do { \
printk(KERN_DEBUG "l2tp_session_inc_refcount: %s:%d %s: cnt=%d\n", __func__, __LINE__, (_s)->name, atomic_read(&_s->ref_count)); \
l2tp_session_inc_refcount_1(_s); \
} while (0)
#define l2tp_session_dec_refcount(_s) do { \
printk(KERN_DEBUG "l2tp_session_dec_refcount: %s:%d %s: cnt=%d\n", __func__, __LINE__, (_s)->name, atomic_read(&_s->ref_count)); \
l2tp_session_dec_refcount_1(_s); \
} while (0)
#define l2tp_session_inc_refcount(_s) \
do { \
pr_debug("l2tp_session_inc_refcount: %s:%d %s: cnt=%d\n", \
__func__, __LINE__, (_s)->name, \
atomic_read(&_s->ref_count)); \
l2tp_session_inc_refcount_1(_s); \
} while (0)
#define l2tp_session_dec_refcount(_s) \
do { \
pr_debug("l2tp_session_dec_refcount: %s:%d %s: cnt=%d\n", \
__func__, __LINE__, (_s)->name, \
atomic_read(&_s->ref_count)); \
l2tp_session_dec_refcount_1(_s); \
} while (0)
#else
#define l2tp_session_inc_refcount(s) l2tp_session_inc_refcount_1(s)
#define l2tp_session_dec_refcount(s) l2tp_session_dec_refcount_1(s)
#endif
#define l2tp_printk(ptr, type, func, fmt, ...) \
do { \
if (((ptr)->debug) & (type)) \
func(fmt, ##__VA_ARGS__); \
} while (0)
#define l2tp_warn(ptr, type, fmt, ...) \
l2tp_printk(ptr, type, pr_warn, fmt, ##__VA_ARGS__)
#define l2tp_info(ptr, type, fmt, ...) \
l2tp_printk(ptr, type, pr_info, fmt, ##__VA_ARGS__)
#define l2tp_dbg(ptr, type, fmt, ...) \
l2tp_printk(ptr, type, pr_debug, fmt, ##__VA_ARGS__)
#endif /* _L2TP_CORE_H_ */

6
net/l2tp/l2tp_debugfs.c
View File

@ -9,6 +9,8 @@
* 2 of the License, or (at your option) any later version.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/socket.h>
@ -325,11 +327,11 @@ static int __init l2tp_debugfs_init(void)
if (tunnels == NULL)
rc = -EIO;
printk(KERN_INFO "L2TP debugfs support\n");
pr_info("L2TP debugfs support\n");
out:
if (rc)
printk(KERN_WARNING "l2tp debugfs: unable to init\n");
pr_warn("unable to init\n");
return rc;
}

15
net/l2tp/l2tp_eth.c
View File

@ -9,6 +9,8 @@
* 2 of the License, or (at your option) any later version.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/socket.h>
@ -115,21 +117,14 @@ static void l2tp_eth_dev_recv(struct l2tp_session *session, struct sk_buff *skb,
if (session->debug & L2TP_MSG_DATA) {
unsigned int length;
int offset;
u8 *ptr = skb->data;
length = min(32u, skb->len);
if (!pskb_may_pull(skb, length))
goto error;
printk(KERN_DEBUG "%s: eth recv: ", session->name);
offset = 0;
do {
printk(" %02X", ptr[offset]);
} while (++offset < length);
printk("\n");
pr_debug("%s: eth recv\n", session->name);
print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, ptr, length);
}
if (!pskb_may_pull(skb, sizeof(ETH_HLEN)))
@ -308,7 +303,7 @@ static int __init l2tp_eth_init(void)
if (err)
goto out_unreg;
printk(KERN_INFO "L2TP ethernet pseudowire support (L2TPv3)\n");
pr_info("L2TP ethernet pseudowire support (L2TPv3)\n");
return 0;

15
net/l2tp/l2tp_ip.c
View File

@ -9,6 +9,8 @@
* 2 of the License, or (at your option) any later version.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/icmp.h>
#include <linux/module.h>
#include <linux/skbuff.h>
@ -120,7 +122,6 @@ static int l2tp_ip_recv(struct sk_buff *skb)
struct l2tp_session *session;
struct l2tp_tunnel *tunnel = NULL;
int length;
int offset;
/* Point to L2TP header */
optr = ptr = skb->data;
@ -155,14 +156,8 @@ static int l2tp_ip_recv(struct sk_buff *skb)
if (!pskb_may_pull(skb, length))
goto discard;
printk(KERN_DEBUG "%s: ip recv: ", tunnel->name);
offset = 0;
do {
printk(" %02X", ptr[offset]);
} while (++offset < length);
printk("\n");
pr_debug("%s: ip recv\n", tunnel->name);
print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, ptr, length);
}
l2tp_recv_common(session, skb, ptr, optr, 0, skb->len, tunnel->recv_payload_hook);
@ -593,7 +588,7 @@ static int __init l2tp_ip_init(void)
{
int err;
printk(KERN_INFO "L2TP IP encapsulation support (L2TPv3)\n");
pr_info("L2TP IP encapsulation support (L2TPv3)\n");
err = proto_register(&l2tp_ip_prot, 1);
if (err != 0)

15
net/l2tp/l2tp_ip6.c
View File

@ -9,6 +9,8 @@
* 2 of the License, or (at your option) any later version.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/icmp.h>
#include <linux/module.h>
#include <linux/skbuff.h>
@ -133,7 +135,6 @@ static int l2tp_ip6_recv(struct sk_buff *skb)
struct l2tp_session *session;
struct l2tp_tunnel *tunnel = NULL;
int length;
int offset;
/* Point to L2TP header */
optr = ptr = skb->data;
@ -168,14 +169,8 @@ static int l2tp_ip6_recv(struct sk_buff *skb)
if (!pskb_may_pull(skb, length))
goto discard;
printk(KERN_DEBUG "%s: ip recv: ", tunnel->name);
offset = 0;
do {
printk(" %02X", ptr[offset]);
} while (++offset < length);
printk("\n");
pr_debug("%s: ip recv\n", tunnel->name);
print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, ptr, length);
}
l2tp_recv_common(session, skb, ptr, optr, 0, skb->len,
@ -752,7 +747,7 @@ static int __init l2tp_ip6_init(void)
{
int err;
printk(KERN_INFO "L2TP IP encapsulation support for IPv6 (L2TPv3)\n");
pr_info("L2TP IP encapsulation support for IPv6 (L2TPv3)\n");
err = proto_register(&l2tp_ip6_prot, 1);
if (err != 0)

4
net/l2tp/l2tp_netlink.c
View File

@ -14,6 +14,8 @@
* published by the Free Software Foundation.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <net/sock.h>
#include <net/genetlink.h>
#include <net/udp.h>
@ -902,7 +904,7 @@ static int l2tp_nl_init(void)
{
int err;
printk(KERN_INFO "L2TP netlink interface\n");
pr_info("L2TP netlink interface\n");
err = genl_register_family_with_ops(&l2tp_nl_family, l2tp_nl_ops,
ARRAY_SIZE(l2tp_nl_ops));

128
net/l2tp/l2tp_ppp.c
View File

@ -57,6 +57,8 @@
* http://openl2tp.sourceforge.net.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/string.h>
#include <linux/list.h>
@ -106,12 +108,6 @@
/* Space for UDP, L2TP and PPP headers */
#define PPPOL2TP_HEADER_OVERHEAD 40
#define PRINTK(_mask, _type, _lvl, _fmt, args...) \
do { \
if ((_mask) & (_type)) \
printk(_lvl "PPPOL2TP: " _fmt, ##args); \
} while (0)
/* Number of bytes to build transmit L2TP headers.
* Unfortunately the size is different depending on whether sequence numbers
* are enabled.
@ -236,9 +232,9 @@ static void pppol2tp_recv(struct l2tp_session *session, struct sk_buff *skb, int
if (sk->sk_state & PPPOX_BOUND) {
struct pppox_sock *po;
PRINTK(session->debug, PPPOL2TP_MSG_DATA, KERN_DEBUG,
"%s: recv %d byte data frame, passing to ppp\n",
session->name, data_len);
l2tp_dbg(session, PPPOL2TP_MSG_DATA,
"%s: recv %d byte data frame, passing to ppp\n",
session->name, data_len);
/* We need to forget all info related to the L2TP packet
* gathered in the skb as we are going to reuse the same
@ -259,8 +255,8 @@ static void pppol2tp_recv(struct l2tp_session *session, struct sk_buff *skb, int
po = pppox_sk(sk);
ppp_input(&po->chan, skb);
} else {
PRINTK(session->debug, PPPOL2TP_MSG_DATA, KERN_INFO,
"%s: socket not bound\n", session->name);
l2tp_info(session, PPPOL2TP_MSG_DATA, "%s: socket not bound\n",
session->name);
/* Not bound. Nothing we can do, so discard. */
session->stats.rx_errors++;
@ -270,8 +266,7 @@ static void pppol2tp_recv(struct l2tp_session *session, struct sk_buff *skb, int
return;
no_sock:
PRINTK(session->debug, PPPOL2TP_MSG_DATA, KERN_INFO,
"%s: no socket\n", session->name);
l2tp_info(session, PPPOL2TP_MSG_DATA, "%s: no socket\n", session->name);
kfree_skb(skb);
}
@ -827,8 +822,8 @@ out_no_ppp:
/* This is how we get the session context from the socket. */
sk->sk_user_data = session;
sk->sk_state = PPPOX_CONNECTED;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: created\n", session->name);
l2tp_info(session, PPPOL2TP_MSG_CONTROL, "%s: created\n",
session->name);
end:
release_sock(sk);
@ -881,8 +876,8 @@ static int pppol2tp_session_create(struct net *net, u32 tunnel_id, u32 session_i
ps = l2tp_session_priv(session);
ps->tunnel_sock = tunnel->sock;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: created\n", session->name);
l2tp_info(session, PPPOL2TP_MSG_CONTROL, "%s: created\n",
session->name);
error = 0;
@ -1058,9 +1053,9 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
struct l2tp_tunnel *tunnel = session->tunnel;
struct pppol2tp_ioc_stats stats;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_DEBUG,
"%s: pppol2tp_session_ioctl(cmd=%#x, arg=%#lx)\n",
session->name, cmd, arg);
l2tp_dbg(session, PPPOL2TP_MSG_CONTROL,
"%s: pppol2tp_session_ioctl(cmd=%#x, arg=%#lx)\n",
session->name, cmd, arg);
sk = ps->sock;
sock_hold(sk);
@ -1078,8 +1073,8 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
if (copy_to_user((void __user *) arg, &ifr, sizeof(struct ifreq)))
break;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: get mtu=%d\n", session->name, session->mtu);
l2tp_info(session, PPPOL2TP_MSG_CONTROL, "%s: get mtu=%d\n",
session->name, session->mtu);
err = 0;
break;
@ -1094,8 +1089,8 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
session->mtu = ifr.ifr_mtu;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: set mtu=%d\n", session->name, session->mtu);
l2tp_info(session, PPPOL2TP_MSG_CONTROL, "%s: set mtu=%d\n",
session->name, session->mtu);
err = 0;
break;
@ -1108,8 +1103,8 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
if (put_user(session->mru, (int __user *) arg))
break;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: get mru=%d\n", session->name, session->mru);
l2tp_info(session, PPPOL2TP_MSG_CONTROL, "%s: get mru=%d\n",
session->name, session->mru);
err = 0;
break;
@ -1123,8 +1118,8 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
break;
session->mru = val;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: set mru=%d\n", session->name, session->mru);
l2tp_info(session, PPPOL2TP_MSG_CONTROL, "%s: set mru=%d\n",
session->name, session->mru);
err = 0;
break;
@ -1133,8 +1128,8 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
if (put_user(ps->flags, (int __user *) arg))
break;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: get flags=%d\n", session->name, ps->flags);
l2tp_info(session, PPPOL2TP_MSG_CONTROL, "%s: get flags=%d\n",
session->name, ps->flags);
err = 0;
break;
@ -1143,8 +1138,8 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
if (get_user(val, (int __user *) arg))
break;
ps->flags = val;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: set flags=%d\n", session->name, ps->flags);
l2tp_info(session, PPPOL2TP_MSG_CONTROL, "%s: set flags=%d\n",
session->name, ps->flags);
err = 0;
break;
@ -1160,8 +1155,8 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
if (copy_to_user((void __user *) arg, &stats,
sizeof(stats)))
break;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: get L2TP stats\n", session->name);
l2tp_info(session, PPPOL2TP_MSG_CONTROL, "%s: get L2TP stats\n",
session->name);
err = 0;
break;
@ -1188,9 +1183,9 @@ static int pppol2tp_tunnel_ioctl(struct l2tp_tunnel *tunnel,
struct sock *sk;
struct pppol2tp_ioc_stats stats;
PRINTK(tunnel->debug, PPPOL2TP_MSG_CONTROL, KERN_DEBUG,
"%s: pppol2tp_tunnel_ioctl(cmd=%#x, arg=%#lx)\n",
tunnel->name, cmd, arg);
l2tp_dbg(tunnel, PPPOL2TP_MSG_CONTROL,
"%s: pppol2tp_tunnel_ioctl(cmd=%#x, arg=%#lx)\n",
tunnel->name, cmd, arg);
sk = tunnel->sock;
sock_hold(sk);
@ -1224,8 +1219,8 @@ static int pppol2tp_tunnel_ioctl(struct l2tp_tunnel *tunnel,
err = -EFAULT;
break;
}
PRINTK(tunnel->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: get L2TP stats\n", tunnel->name);
l2tp_info(tunnel, PPPOL2TP_MSG_CONTROL, "%s: get L2TP stats\n",
tunnel->name);
err = 0;
break;
@ -1314,8 +1309,8 @@ static int pppol2tp_tunnel_setsockopt(struct sock *sk,
switch (optname) {
case PPPOL2TP_SO_DEBUG:
tunnel->debug = val;
PRINTK(tunnel->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: set debug=%x\n", tunnel->name, tunnel->debug);
l2tp_info(tunnel, PPPOL2TP_MSG_CONTROL, "%s: set debug=%x\n",
tunnel->name, tunnel->debug);
break;
default:
@ -1342,8 +1337,9 @@ static int pppol2tp_session_setsockopt(struct sock *sk,
break;
}
session->recv_seq = val ? -1 : 0;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: set recv_seq=%d\n", session->name, session->recv_seq);
l2tp_info(session, PPPOL2TP_MSG_CONTROL,
"%s: set recv_seq=%d\n",
session->name, session->recv_seq);
break;
case PPPOL2TP_SO_SENDSEQ:
@ -1358,8 +1354,9 @@ static int pppol2tp_session_setsockopt(struct sock *sk,
po->chan.hdrlen = val ? PPPOL2TP_L2TP_HDR_SIZE_SEQ :
PPPOL2TP_L2TP_HDR_SIZE_NOSEQ;
}
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: set send_seq=%d\n", session->name, session->send_seq);
l2tp_info(session, PPPOL2TP_MSG_CONTROL,
"%s: set send_seq=%d\n",
session->name, session->send_seq);
break;
case PPPOL2TP_SO_LNSMODE:
@ -1368,20 +1365,22 @@ static int pppol2tp_session_setsockopt(struct sock *sk,
break;
}
session->lns_mode = val ? -1 : 0;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: set lns_mode=%d\n", session->name, session->lns_mode);
l2tp_info(session, PPPOL2TP_MSG_CONTROL,
"%s: set lns_mode=%d\n",
session->name, session->lns_mode);
break;
case PPPOL2TP_SO_DEBUG:
session->debug = val;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: set debug=%x\n", session->name, session->debug);
l2tp_info(session, PPPOL2TP_MSG_CONTROL, "%s: set debug=%x\n",
session->name, session->debug);
break;
case PPPOL2TP_SO_REORDERTO:
session->reorder_timeout = msecs_to_jiffies(val);
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: set reorder_timeout=%d\n", session->name, session->reorder_timeout);
l2tp_info(session, PPPOL2TP_MSG_CONTROL,
"%s: set reorder_timeout=%d\n",
session->name, session->reorder_timeout);
break;
default:
@ -1460,8 +1459,8 @@ static int pppol2tp_tunnel_getsockopt(struct sock *sk,
switch (optname) {
case PPPOL2TP_SO_DEBUG:
*val = tunnel->debug;
PRINTK(tunnel->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: get debug=%x\n", tunnel->name, tunnel->debug);
l2tp_info(tunnel, PPPOL2TP_MSG_CONTROL, "%s: get debug=%x\n",
tunnel->name, tunnel->debug);
break;
default:
@ -1483,32 +1482,32 @@ static int pppol2tp_session_getsockopt(struct sock *sk,
switch (optname) {
case PPPOL2TP_SO_RECVSEQ:
*val = session->recv_seq;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: get recv_seq=%d\n", session->name, *val);
l2tp_info(session, PPPOL2TP_MSG_CONTROL,
"%s: get recv_seq=%d\n", session->name, *val);
break;
case PPPOL2TP_SO_SENDSEQ:
*val = session->send_seq;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: get send_seq=%d\n", session->name, *val);
l2tp_info(session, PPPOL2TP_MSG_CONTROL,
"%s: get send_seq=%d\n", session->name, *val);
break;
case PPPOL2TP_SO_LNSMODE:
*val = session->lns_mode;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: get lns_mode=%d\n", session->name, *val);
l2tp_info(session, PPPOL2TP_MSG_CONTROL,
"%s: get lns_mode=%d\n", session->name, *val);
break;
case PPPOL2TP_SO_DEBUG:
*val = session->debug;
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: get debug=%d\n", session->name, *val);
l2tp_info(session, PPPOL2TP_MSG_CONTROL, "%s: get debug=%d\n",
session->name, *val);
break;
case PPPOL2TP_SO_REORDERTO:
*val = (int) jiffies_to_msecs(session->reorder_timeout);
PRINTK(session->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
"%s: get reorder_timeout=%d\n", session->name, *val);
l2tp_info(session, PPPOL2TP_MSG_CONTROL,
"%s: get reorder_timeout=%d\n", session->name, *val);
break;
default:
@ -1871,8 +1870,7 @@ static int __init pppol2tp_init(void)
goto out_unregister_pppox;
#endif
printk(KERN_INFO "PPPoL2TP kernel driver, %s\n",
PPPOL2TP_DRV_VERSION);
pr_info("PPPoL2TP kernel driver, %s\n", PPPOL2TP_DRV_VERSION);
out:
return err;