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path: root/drivers/media/dvb-core/dvb_net.c
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Diffstat (limited to 'drivers/media/dvb-core/dvb_net.c')
-rw-r--r--drivers/media/dvb-core/dvb_net.c74
1 files changed, 32 insertions, 42 deletions
diff --git a/drivers/media/dvb-core/dvb_net.c b/drivers/media/dvb-core/dvb_net.c
index c018e3c06d5d..b6c7eec863b9 100644
--- a/drivers/media/dvb-core/dvb_net.c
+++ b/drivers/media/dvb-core/dvb_net.c
@@ -38,7 +38,7 @@
* Competence Center for Advanced Satellite Communications.
* Bugfixes and robustness improvements.
* Filtering on dest MAC addresses, if present (D-Bit = 0)
- * ULE_DEBUG compile-time option.
+ * DVB_ULE_DEBUG compile-time option.
* Apr 2006: cp v3: Bugfixes and compliency with RFC 4326 (ULE) by
* Christian Praehauser <cpraehaus@cosy.sbg.ac.at>,
* Paris Lodron University of Salzburg.
@@ -64,8 +64,8 @@
#include <linux/mutex.h>
#include <linux/sched.h>
-#include "dvb_demux.h"
-#include "dvb_net.h"
+#include <media/dvb_demux.h>
+#include <media/dvb_net.h>
static inline __u32 iov_crc32( __u32 c, struct kvec *iov, unsigned int cnt )
{
@@ -78,15 +78,18 @@ static inline __u32 iov_crc32( __u32 c, struct kvec *iov, unsigned int cnt )
#define DVB_NET_MULTICAST_MAX 10
-#undef ULE_DEBUG
-
-#ifdef ULE_DEBUG
+#ifdef DVB_ULE_DEBUG
+/*
+ * The code inside DVB_ULE_DEBUG keeps a history of the
+ * last 100 TS cells processed.
+ */
+static unsigned char ule_hist[100*TS_SZ] = { 0 };
+static unsigned char *ule_where = ule_hist, ule_dump;
static void hexdump(const unsigned char *buf, unsigned short len)
{
print_hex_dump_debug("", DUMP_PREFIX_OFFSET, 16, 1, buf, len, true);
}
-
#endif
struct dvb_net_priv {
@@ -280,11 +283,9 @@ static int handle_ule_extensions( struct dvb_net_priv *p )
if (l < 0)
return l; /* Stop extension header processing and discard SNDU. */
total_ext_len += l;
-#ifdef ULE_DEBUG
pr_debug("ule_next_hdr=%p, ule_sndu_type=%i, l=%i, total_ext_len=%i\n",
p->ule_next_hdr, (int)p->ule_sndu_type,
l, total_ext_len);
-#endif
} while (p->ule_sndu_type < ETH_P_802_3_MIN);
@@ -320,29 +321,21 @@ struct dvb_net_ule_handle {
const u8 *ts, *ts_end, *from_where;
u8 ts_remain, how_much, new_ts;
bool error;
-#ifdef ULE_DEBUG
- /*
- * The code inside ULE_DEBUG keeps a history of the
- * last 100 TS cells processed.
- */
- static unsigned char ule_hist[100*TS_SZ];
- static unsigned char *ule_where = ule_hist, ule_dump;
-#endif
};
static int dvb_net_ule_new_ts_cell(struct dvb_net_ule_handle *h)
{
/* We are about to process a new TS cell. */
-#ifdef ULE_DEBUG
- if (h->ule_where >= &h->ule_hist[100*TS_SZ])
- h->ule_where = h->ule_hist;
- memcpy(h->ule_where, h->ts, TS_SZ);
- if (h->ule_dump) {
- hexdump(h->ule_where, TS_SZ);
- h->ule_dump = 0;
+#ifdef DVB_ULE_DEBUG
+ if (ule_where >= &ule_hist[100*TS_SZ])
+ ule_where = ule_hist;
+ memcpy(ule_where, h->ts, TS_SZ);
+ if (ule_dump) {
+ hexdump(ule_where, TS_SZ);
+ ule_dump = 0;
}
- h->ule_where += TS_SZ;
+ ule_where += TS_SZ;
#endif
/*
@@ -660,6 +653,7 @@ static int dvb_net_ule_should_drop(struct dvb_net_ule_handle *h)
static void dvb_net_ule_check_crc(struct dvb_net_ule_handle *h,
+ struct kvec iov[3],
u32 ule_crc, u32 expected_crc)
{
u8 dest_addr[ETH_ALEN];
@@ -672,22 +666,22 @@ static void dvb_net_ule_check_crc(struct dvb_net_ule_handle *h,
h->ts_remain > 2 ?
*(unsigned short *)h->from_where : 0);
- #ifdef ULE_DEBUG
+ #ifdef DVB_ULE_DEBUG
hexdump(iov[0].iov_base, iov[0].iov_len);
hexdump(iov[1].iov_base, iov[1].iov_len);
hexdump(iov[2].iov_base, iov[2].iov_len);
- if (h->ule_where == h->ule_hist) {
- hexdump(&h->ule_hist[98*TS_SZ], TS_SZ);
- hexdump(&h->ule_hist[99*TS_SZ], TS_SZ);
- } else if (h->ule_where == &h->ule_hist[TS_SZ]) {
- hexdump(&h->ule_hist[99*TS_SZ], TS_SZ);
- hexdump(h->ule_hist, TS_SZ);
+ if (ule_where == ule_hist) {
+ hexdump(&ule_hist[98*TS_SZ], TS_SZ);
+ hexdump(&ule_hist[99*TS_SZ], TS_SZ);
+ } else if (ule_where == &ule_hist[TS_SZ]) {
+ hexdump(&ule_hist[99*TS_SZ], TS_SZ);
+ hexdump(ule_hist, TS_SZ);
} else {
- hexdump(h->ule_where - TS_SZ - TS_SZ, TS_SZ);
- hexdump(h->ule_where - TS_SZ, TS_SZ);
+ hexdump(ule_where - TS_SZ - TS_SZ, TS_SZ);
+ hexdump(ule_where - TS_SZ, TS_SZ);
}
- h->ule_dump = 1;
+ ule_dump = 1;
#endif
h->dev->stats.rx_errors++;
@@ -705,11 +699,9 @@ static void dvb_net_ule_check_crc(struct dvb_net_ule_handle *h,
if (!h->priv->ule_dbit) {
if (dvb_net_ule_should_drop(h)) {
-#ifdef ULE_DEBUG
netdev_dbg(h->dev,
"Dropping SNDU: MAC destination address does not match: dest addr: %pM, h->dev addr: %pM\n",
h->priv->ule_skb->data, h->dev->dev_addr);
-#endif
dev_kfree_skb(h->priv->ule_skb);
return;
}
@@ -779,6 +771,8 @@ static void dvb_net_ule(struct net_device *dev, const u8 *buf, size_t buf_len)
int ret;
struct dvb_net_ule_handle h = {
.dev = dev,
+ .priv = netdev_priv(dev),
+ .ethh = NULL,
.buf = buf,
.buf_len = buf_len,
.skipped = 0L,
@@ -788,11 +782,7 @@ static void dvb_net_ule(struct net_device *dev, const u8 *buf, size_t buf_len)
.ts_remain = 0,
.how_much = 0,
.new_ts = 1,
- .ethh = NULL,
.error = false,
-#ifdef ULE_DEBUG
- .ule_where = ule_hist,
-#endif
};
/*
@@ -860,7 +850,7 @@ static void dvb_net_ule(struct net_device *dev, const u8 *buf, size_t buf_len)
*(tail - 2) << 8 |
*(tail - 1);
- dvb_net_ule_check_crc(&h, ule_crc, expected_crc);
+ dvb_net_ule_check_crc(&h, iov, ule_crc, expected_crc);
/* Prepare for next SNDU. */
reset_ule(h.priv);
generated by cgit (git 2.34.1) at 2024-04-25 11:38:25 +0000