-/*
+/*
* dvb_net.c
*
* Copyright (C) 2001 Convergence integrated media GmbH
* Copyright (C) 2003, 2004 gcs - Global Communication & Services GmbH.
* and Department of Scientific Computing
* Paris Lodron University of Salzburg.
- * Hilmar Linder <hlinder@cosy.sbg.ac.at>
- * and Wolfram Stering <wstering@cosy.sbg.ac.at>
+ * Hilmar Linder <hlinder@cosy.sbg.ac.at>
+ * and Wolfram Stering <wstering@cosy.sbg.ac.at>
*
- * ULE Decaps according to draft-ietf-ipdvb-ule-03.txt.
+ * ULE Decaps according to RFC 4326.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Bugfixes and robustness improvements.
* Filtering on dest MAC addresses, if present (D-Bit = 0)
* 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.
*/
/*
*
* Unloading does not work for 2.6.9 kernels: a refcount doesn't go to zero.
*
- * TS_FEED callback is called once for every single TS cell although it is
- * registered (in dvb_net_feed_start()) for 100 TS cells (used for dvb_net_ule()).
- *
*/
#include <linux/module.h>
#include <linux/uio.h>
#include <asm/uaccess.h>
#include <linux/crc32.h>
-#include <linux/version.h>
+#include <linux/mutex.h>
#include "dvb_demux.h"
#include "dvb_net.h"
#ifdef ULE_DEBUG
+#define MAC_ADDR_PRINTFMT "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x"
+#define MAX_ADDR_PRINTFMT_ARGS(macap) (macap)[0],(macap)[1],(macap)[2],(macap)[3],(macap)[4],(macap)[5]
+
#define isprint(c) ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9'))
static void hexdump( const unsigned char *buf, unsigned short len )
struct dvb_net_priv {
int in_use;
- struct net_device_stats stats;
+ struct net_device_stats stats;
u16 pid;
+ struct net_device *net;
struct dvb_net *host;
- struct dmx_demux *demux;
+ struct dmx_demux *demux;
struct dmx_section_feed *secfeed;
struct dmx_section_filter *secfilter;
struct dmx_ts_feed *tsfeed;
unsigned char ule_bridged; /* Whether the ULE_BRIDGED extension header was found. */
int ule_sndu_remain; /* Nr. of bytes still required for current ULE SNDU. */
unsigned long ts_count; /* Current ts cell counter. */
+ struct mutex mutex;
};
/**
- * Determine the packet's protocol ID. The rule here is that we
+ * Determine the packet's protocol ID. The rule here is that we
* assume 802.3 if the type field is short enough to be a length.
* This is normal practice and works for any 'now in use' protocol.
*
{
struct ethhdr *eth;
unsigned char *rawp;
-
+
skb->mac.raw=skb->data;
skb_pull(skb,dev->hard_header_len);
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,8)
- eth = skb->mac.ethernet;
-#else
eth = eth_hdr(skb);
-#endif
-
+
if (*eth->h_dest & 1) {
if(memcmp(eth->h_dest,dev->broadcast, ETH_ALEN)==0)
skb->pkt_type=PACKET_BROADCAST;
else
skb->pkt_type=PACKET_MULTICAST;
}
-
+
if (ntohs(eth->h_proto) >= 1536)
return eth->h_proto;
-
+
rawp = skb->data;
-
+
/**
* This is a magic hack to spot IPX packets. Older Novell breaks
* the protocol design and runs IPX over 802.3 without an 802.2 LLC
*/
if (*(unsigned short *)rawp == 0xFFFF)
return htons(ETH_P_802_3);
-
+
/**
* Real 802.2 LLC
*/
#define ULE_TEST 0
#define ULE_BRIDGED 1
-int ule_test_sndu( struct dvb_net_priv *p )
+#define ULE_OPTEXTHDR_PADDING 0
+
+static int ule_test_sndu( struct dvb_net_priv *p )
{
return -1;
}
-int ule_bridged_sndu( struct dvb_net_priv *p )
+static int ule_bridged_sndu( struct dvb_net_priv *p )
{
- /* BRIDGE SNDU handling sucks in draft-ietf-ipdvb-ule-03.txt.
- * This has to be the last extension header, otherwise it won't work.
- * Blame the authors!
+ struct ethhdr *hdr = (struct ethhdr*) p->ule_next_hdr;
+ if(ntohs(hdr->h_proto) < 1536) {
+ int framelen = p->ule_sndu_len - ((p->ule_next_hdr+sizeof(struct ethhdr)) - p->ule_skb->data);
+ /* A frame Type < 1536 for a bridged frame, introduces a LLC Length field. */
+ if(framelen != ntohs(hdr->h_proto)) {
+ return -1;
+ }
+ }
+ /* Note:
+ * From RFC4326:
+ * "A bridged SNDU is a Mandatory Extension Header of Type 1.
+ * It must be the final (or only) extension header specified in the header chain of a SNDU."
+ * The 'ule_bridged' flag will cause the extension header processing loop to terminate.
*/
p->ule_bridged = 1;
return 0;
}
+static int ule_exthdr_padding(struct dvb_net_priv *p)
+{
+ return 0;
+}
/** Handle ULE extension headers.
* Function is called after a successful CRC32 verification of an ULE SNDU to complete its decoding.
* Returns: >= 0: nr. of bytes consumed by next extension header
- * -1: Mandatory extension header that is not recognized or TEST SNDU; discard.
+ * -1: Mandatory extension header that is not recognized or TEST SNDU; discard.
*/
static int handle_one_ule_extension( struct dvb_net_priv *p )
{
{ [0] = ule_test_sndu, [1] = ule_bridged_sndu, [2] = NULL, };
/* Table of optional extension header handlers. The header type is the index. */
- static int (*ule_optional_ext_handlers[255])( struct dvb_net_priv *p ) = { NULL, };
+ static int (*ule_optional_ext_handlers[255])( struct dvb_net_priv *p ) =
+ { [0] = ule_exthdr_padding, [1] = NULL, };
int ext_len = 0;
unsigned char hlen = (p->ule_sndu_type & 0x0700) >> 8;
/* Mandatory extension header */
if (ule_mandatory_ext_handlers[htype]) {
ext_len = ule_mandatory_ext_handlers[htype]( p );
- p->ule_next_hdr += ext_len;
- if (! p->ule_bridged) {
- p->ule_sndu_type = ntohs( *(unsigned short *)p->ule_next_hdr );
- p->ule_next_hdr += 2;
- } else {
- p->ule_sndu_type = ntohs( *(unsigned short *)(p->ule_next_hdr + ((p->ule_dbit ? 2 : 3) * ETH_ALEN)) );
- /* This assures the extension handling loop will terminate. */
+ if(ext_len >= 0) {
+ p->ule_next_hdr += ext_len;
+ if (!p->ule_bridged) {
+ p->ule_sndu_type = ntohs(*(unsigned short *)p->ule_next_hdr);
+ p->ule_next_hdr += 2;
+ } else {
+ p->ule_sndu_type = ntohs(*(unsigned short *)(p->ule_next_hdr + ((p->ule_dbit ? 2 : 3) * ETH_ALEN)));
+ /* This assures the extension handling loop will terminate. */
+ }
}
+ // else: extension handler failed or SNDU should be discarded
} else
ext_len = -1; /* SNDU has to be discarded. */
} else {
/* Optional extension header. Calculate the length. */
- ext_len = hlen << 2;
+ ext_len = hlen << 1;
/* Process the optional extension header according to its type. */
if (ule_optional_ext_handlers[htype])
(void)ule_optional_ext_handlers[htype]( p );
p->ule_next_hdr += ext_len;
- p->ule_sndu_type = ntohs( *(unsigned short *)p->ule_next_hdr );
- p->ule_next_hdr += 2;
+ p->ule_sndu_type = ntohs( *(unsigned short *)(p->ule_next_hdr-2) );
+ /*
+ * note: the length of the next header type is included in the
+ * length of THIS optional extension header
+ */
}
return ext_len;
p->ule_next_hdr = p->ule_skb->data;
do {
l = handle_one_ule_extension( p );
- if (l == -1) return -1; /* Stop extension header processing and discard SNDU. */
+ if (l < 0)
+ return l; /* Stop extension header processing and discard SNDU. */
total_ext_len += l;
+#ifdef ULE_DEBUG
+ dprintk("handle_ule_extensions: 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 < 1536);
*/
static void dvb_net_ule( struct net_device *dev, const u8 *buf, size_t buf_len )
{
- struct dvb_net_priv *priv = (struct dvb_net_priv *)dev->priv;
+ struct dvb_net_priv *priv = dev->priv;
unsigned long skipped = 0L;
u8 *ts, *ts_end, *from_where = NULL, ts_remain = 0, how_much = 0, new_ts = 1;
struct ethhdr *ethh = NULL;
if (ule_dump) {
hexdump( ule_where, TS_SZ );
ule_dump = 0;
- }
+ }
ule_where += TS_SZ;
#endif
if (priv->ule_skb) {
dev_kfree_skb( priv->ule_skb );
/* Prepare for next SNDU. */
- ((struct dvb_net_priv *) dev->priv)->stats.rx_errors++;
- ((struct dvb_net_priv *) dev->priv)->stats.rx_frame_errors++;
+ priv->stats.rx_errors++;
+ priv->stats.rx_frame_errors++;
}
reset_ule(priv);
priv->need_pusi = 1;
}
}
- /* Check continuity counter. */
if (new_ts) {
+ /* Check continuity counter. */
if ((ts[3] & 0x0F) == priv->tscc)
priv->tscc = (priv->tscc + 1) & 0x0F;
else {
/* TS discontinuity handling: */
printk(KERN_WARNING "%lu: TS discontinuity: got %#x, "
- "exptected %#x.\n", priv->ts_count, ts[3] & 0x0F, priv->tscc);
+ "expected %#x.\n", priv->ts_count, ts[3] & 0x0F, priv->tscc);
/* Drop partly decoded SNDU, reset state, resync on PUSI. */
if (priv->ule_skb) {
dev_kfree_skb( priv->ule_skb );
/* Prepare for next SNDU. */
// reset_ule(priv); moved to below.
- ((struct dvb_net_priv *) dev->priv)->stats.rx_errors++;
- ((struct dvb_net_priv *) dev->priv)->stats.rx_frame_errors++;
+ priv->stats.rx_errors++;
+ priv->stats.rx_frame_errors++;
}
reset_ule(priv);
/* skip to next PUSI. */
priv->need_pusi = 1;
- ts += TS_SZ;
- priv->ts_count++;
continue;
}
/* If we still have an incomplete payload, but PUSI is
* cells (continuity counter wrap). */
if (ts[1] & TS_PUSI) {
if (! priv->need_pusi) {
- if (*from_where > 181) {
+ if (!(*from_where < (ts_remain-1)) || *from_where != priv->ule_sndu_remain) {
/* Pointer field is invalid. Drop this TS cell and any started ULE SNDU. */
printk(KERN_WARNING "%lu: Invalid pointer "
"field: %u.\n", priv->ts_count, *from_where);
}
reset_ule(priv);
priv->need_pusi = 1;
- ts += TS_SZ;
- priv->ts_count++;
continue;
}
/* Skip pointer field (we're processing a
if (priv->ule_sndu_remain > 183) {
/* Current SNDU lacks more data than there could be available in the
* current TS cell. */
- ((struct dvb_net_priv *) dev->priv)->stats.rx_errors++;
- ((struct dvb_net_priv *) dev->priv)->stats.rx_length_errors++;
+ priv->stats.rx_errors++;
+ priv->stats.rx_length_errors++;
printk(KERN_WARNING "%lu: Expected %d more SNDU bytes, but "
"got PUSI (pf %d, ts_remain %d). Flushing incomplete payload.\n",
priv->ts_count, priv->ule_sndu_remain, ts[4], ts_remain);
} else
priv->ule_dbit = 0;
- if (priv->ule_sndu_len > 32763) {
+ if (priv->ule_sndu_len < 5) {
printk(KERN_WARNING "%lu: Invalid ULE SNDU length %u. "
"Resyncing.\n", priv->ts_count, priv->ule_sndu_len);
+ priv->stats.rx_errors++;
+ priv->stats.rx_length_errors++;
priv->ule_sndu_len = 0;
priv->need_pusi = 1;
new_ts = 1;
{ &utype, sizeof utype },
{ priv->ule_skb->data, priv->ule_skb->len - 4 }
};
- unsigned long ule_crc = ~0L, expected_crc;
+ u32 ule_crc = ~0L, expected_crc;
if (priv->ule_dbit) {
/* Set D-bit for CRC32 verification,
* if it was set originally. */
ule_crc = iov_crc32(ule_crc, iov, 3);
expected_crc = *((u8 *)priv->ule_skb->tail - 4) << 24 |
- *((u8 *)priv->ule_skb->tail - 3) << 16 |
- *((u8 *)priv->ule_skb->tail - 2) << 8 |
- *((u8 *)priv->ule_skb->tail - 1);
+ *((u8 *)priv->ule_skb->tail - 3) << 16 |
+ *((u8 *)priv->ule_skb->tail - 2) << 8 |
+ *((u8 *)priv->ule_skb->tail - 1);
if (ule_crc != expected_crc) {
- printk(KERN_WARNING "%lu: CRC32 check FAILED: %#lx / %#lx, SNDU len %d type %#x, ts_remain %d, next 2: %x.\n",
+ printk(KERN_WARNING "%lu: CRC32 check FAILED: %08x / %08x, SNDU len %d type %#x, ts_remain %d, next 2: %x.\n",
priv->ts_count, ule_crc, expected_crc, priv->ule_sndu_len, priv->ule_sndu_type, ts_remain, ts_remain > 2 ? *(unsigned short *)from_where : 0);
#ifdef ULE_DEBUG
ule_dump = 1;
#endif
- ((struct dvb_net_priv *) dev->priv)->stats.rx_errors++;
- ((struct dvb_net_priv *) dev->priv)->stats.rx_crc_errors++;
+ priv->stats.rx_errors++;
+ priv->stats.rx_crc_errors++;
dev_kfree_skb(priv->ule_skb);
} else {
/* CRC32 verified OK. */
+ u8 dest_addr[ETH_ALEN];
+ static const u8 bc_addr[ETH_ALEN] =
+ { [ 0 ... ETH_ALEN-1] = 0xff };
+
+ /* CRC32 was OK. Remove it from skb. */
+ priv->ule_skb->tail -= 4;
+ priv->ule_skb->len -= 4;
+
+ if (!priv->ule_dbit) {
+ /*
+ * The destination MAC address is the
+ * next data in the skb. It comes
+ * before any extension headers.
+ *
+ * Check if the payload of this SNDU
+ * should be passed up the stack.
+ */
+ register int drop = 0;
+ if (priv->rx_mode != RX_MODE_PROMISC) {
+ if (priv->ule_skb->data[0] & 0x01) {
+ /* multicast or broadcast */
+ if (memcmp(priv->ule_skb->data, bc_addr, ETH_ALEN)) {
+ /* multicast */
+ if (priv->rx_mode == RX_MODE_MULTI) {
+ int i;
+ for(i = 0; i < priv->multi_num && memcmp(priv->ule_skb->data, priv->multi_macs[i], ETH_ALEN); i++)
+ ;
+ if (i == priv->multi_num)
+ drop = 1;
+ } else if (priv->rx_mode != RX_MODE_ALL_MULTI)
+ drop = 1; /* no broadcast; */
+ /* else: all multicast mode: accept all multicast packets */
+ }
+ /* else: broadcast */
+ }
+ else if (memcmp(priv->ule_skb->data, dev->dev_addr, ETH_ALEN))
+ drop = 1;
+ /* else: destination address matches the MAC address of our receiver device */
+ }
+ /* else: promiscious mode; pass everything up the stack */
+
+ if (drop) {
+#ifdef ULE_DEBUG
+ dprintk("Dropping SNDU: MAC destination address does not match: dest addr: "MAC_ADDR_PRINTFMT", dev addr: "MAC_ADDR_PRINTFMT"\n",
+ MAX_ADDR_PRINTFMT_ARGS(priv->ule_skb->data), MAX_ADDR_PRINTFMT_ARGS(dev->dev_addr));
+#endif
+ dev_kfree_skb(priv->ule_skb);
+ goto sndu_done;
+ }
+ else
+ {
+ memcpy(dest_addr, priv->ule_skb->data, ETH_ALEN);
+ skb_pull(priv->ule_skb, ETH_ALEN);
+ }
+ }
+
/* Handle ULE Extension Headers. */
if (priv->ule_sndu_type < 1536) {
/* There is an extension header. Handle it accordingly. */
- int l = handle_ule_extensions( priv );
+ int l = handle_ule_extensions(priv);
if (l < 0) {
/* Mandatory extension header unknown or TEST SNDU. Drop it. */
// printk( KERN_WARNING "Dropping SNDU, extension headers.\n" );
- dev_kfree_skb( priv->ule_skb );
+ dev_kfree_skb(priv->ule_skb);
goto sndu_done;
}
- skb_pull( priv->ule_skb, l );
+ skb_pull(priv->ule_skb, l);
}
- /* CRC32 was OK. Remove it from skb. */
- priv->ule_skb->tail -= 4;
- priv->ule_skb->len -= 4;
-
- /* Filter on receiver's destination MAC address, if present. */
- if (!priv->ule_dbit) {
- /* The destination MAC address is the next data in the skb. */
- if (memcmp( priv->ule_skb->data, dev->dev_addr, ETH_ALEN )) {
- /* MAC addresses don't match. Drop SNDU. */
- // printk( KERN_WARNING "Dropping SNDU, MAC address.\n" );
- dev_kfree_skb( priv->ule_skb );
- goto sndu_done;
- }
- if (! priv->ule_bridged) {
- skb_push( priv->ule_skb, ETH_ALEN + 2 );
- ethh = (struct ethhdr *)priv->ule_skb->data;
- memcpy( ethh->h_dest, ethh->h_source, ETH_ALEN );
- memset( ethh->h_source, 0, ETH_ALEN );
- ethh->h_proto = htons( priv->ule_sndu_type );
- } else {
- /* Skip the Receiver destination MAC address. */
- skb_pull( priv->ule_skb, ETH_ALEN );
- }
- } else {
- if (! priv->ule_bridged) {
- skb_push( priv->ule_skb, ETH_HLEN );
- ethh = (struct ethhdr *)priv->ule_skb->data;
- memcpy( ethh->h_dest, dev->dev_addr, ETH_ALEN );
- memset( ethh->h_source, 0, ETH_ALEN );
- ethh->h_proto = htons( priv->ule_sndu_type );
- } else {
- /* skb is in correct state; nothing to do. */
+ /*
+ * Construct/assure correct ethernet header.
+ * Note: in bridged mode (priv->ule_bridged !=
+ * 0) we already have the (original) ethernet
+ * header at the start of the payload (after
+ * optional dest. address and any extension
+ * headers).
+ */
+
+ if (!priv->ule_bridged) {
+ skb_push(priv->ule_skb, ETH_HLEN);
+ ethh = (struct ethhdr *)priv->ule_skb->data;
+ if (!priv->ule_dbit) {
+ /* dest_addr buffer is only valid if priv->ule_dbit == 0 */
+ memcpy(ethh->h_dest, dest_addr, ETH_ALEN);
+ memset(ethh->h_source, 0, ETH_ALEN);
}
+ else /* zeroize source and dest */
+ memset( ethh, 0, ETH_ALEN*2 );
+
+ ethh->h_proto = htons(priv->ule_sndu_type);
}
+ /* else: skb is in correct state; nothing to do. */
priv->ule_bridged = 0;
/* Stuff into kernel's protocol stack. */
* receive the packet anyhow. */
/* if (priv->ule_dbit && skb->pkt_type == PACKET_OTHERHOST)
priv->ule_skb->pkt_type = PACKET_HOST; */
- ((struct dvb_net_priv *) dev->priv)->stats.rx_packets++;
- ((struct dvb_net_priv *) dev->priv)->stats.rx_bytes += priv->ule_skb->len;
+ priv->stats.rx_packets++;
+ priv->stats.rx_bytes += priv->ule_skb->len;
netif_rx(priv->ule_skb);
}
sndu_done:
const u8 *buffer2, size_t buffer2_len,
struct dmx_ts_feed *feed, enum dmx_success success)
{
- struct net_device *dev = (struct net_device *)feed->priv;
+ struct net_device *dev = feed->priv;
if (buffer2 != 0)
printk(KERN_WARNING "buffer2 not 0: %p.\n", buffer2);
if (buffer1_len > 32768)
printk(KERN_WARNING "length > 32k: %zu.\n", buffer1_len);
/* printk("TS callback: %u bytes, %u TS cells @ %p.\n",
- buffer1_len, buffer1_len / TS_SZ, buffer1); */
+ buffer1_len, buffer1_len / TS_SZ, buffer1); */
dvb_net_ule(dev, buffer1, buffer1_len);
return 0;
}
static void dvb_net_sec(struct net_device *dev, u8 *pkt, int pkt_len)
{
- u8 *eth;
- struct sk_buff *skb;
+ u8 *eth;
+ struct sk_buff *skb;
struct net_device_stats *stats = &(((struct dvb_net_priv *) dev->priv)->stats);
+ int snap = 0;
/* note: pkt_len includes a 32bit checksum */
if (pkt_len < 16) {
return;
}
if (pkt[5] & 0x02) {
- //FIXME: handle LLC/SNAP
- stats->rx_dropped++;
- return;
- }
+ /* handle LLC/SNAP, see rfc-1042 */
+ if (pkt_len < 24 || memcmp(&pkt[12], "\xaa\xaa\x03\0\0\0", 6)) {
+ stats->rx_dropped++;
+ return;
+ }
+ snap = 8;
+ }
if (pkt[7]) {
/* FIXME: assemble datagram from multiple sections */
stats->rx_errors++;
}
/* we have 14 byte ethernet header (ip header follows);
- * 12 byte MPE header; 4 byte checksum; + 2 byte alignment
+ * 12 byte MPE header; 4 byte checksum; + 2 byte alignment, 8 byte LLC/SNAP
*/
- if (!(skb = dev_alloc_skb(pkt_len - 4 - 12 + 14 + 2))) {
+ if (!(skb = dev_alloc_skb(pkt_len - 4 - 12 + 14 + 2 - snap))) {
//printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
stats->rx_dropped++;
return;
skb->dev = dev;
/* copy L3 payload */
- eth = (u8 *) skb_put(skb, pkt_len - 12 - 4 + 14);
- memcpy(eth + 14, pkt + 12, pkt_len - 12 - 4);
+ eth = (u8 *) skb_put(skb, pkt_len - 12 - 4 + 14 - snap);
+ memcpy(eth + 14, pkt + 12 + snap, pkt_len - 12 - 4 - snap);
/* create ethernet header: */
- eth[0]=pkt[0x0b];
- eth[1]=pkt[0x0a];
- eth[2]=pkt[0x09];
- eth[3]=pkt[0x08];
- eth[4]=pkt[0x04];
- eth[5]=pkt[0x03];
-
- eth[6]=eth[7]=eth[8]=eth[9]=eth[10]=eth[11]=0;
-
- eth[12] = 0x08; /* ETH_P_IP */
- eth[13] = 0x00;
+ eth[0]=pkt[0x0b];
+ eth[1]=pkt[0x0a];
+ eth[2]=pkt[0x09];
+ eth[3]=pkt[0x08];
+ eth[4]=pkt[0x04];
+ eth[5]=pkt[0x03];
+
+ eth[6]=eth[7]=eth[8]=eth[9]=eth[10]=eth[11]=0;
+
+ if (snap) {
+ eth[12] = pkt[18];
+ eth[13] = pkt[19];
+ } else {
+ /* protocol numbers are from rfc-1700 or
+ * http://www.iana.org/assignments/ethernet-numbers
+ */
+ if (pkt[12] >> 4 == 6) { /* version field from IP header */
+ eth[12] = 0x86; /* IPv6 */
+ eth[13] = 0xdd;
+ } else {
+ eth[12] = 0x08; /* IPv4 */
+ eth[13] = 0x00;
+ }
+ }
skb->protocol = dvb_net_eth_type_trans(skb, dev);
-
+
stats->rx_packets++;
stats->rx_bytes+=skb->len;
- netif_rx(skb);
+ netif_rx(skb);
}
-
+
static int dvb_net_sec_callback(const u8 *buffer1, size_t buffer1_len,
const u8 *buffer2, size_t buffer2_len,
struct dmx_section_filter *filter,
enum dmx_success success)
{
- struct net_device *dev=(struct net_device *) filter->priv;
+ struct net_device *dev = filter->priv;
/**
* we rely on the DVB API definition where exactly one complete
struct dmx_section_filter **secfilter,
u8 *mac, u8 *mac_mask)
{
- struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
+ struct dvb_net_priv *priv = dev->priv;
int ret;
*secfilter=NULL;
static int dvb_net_feed_start(struct net_device *dev)
{
- int ret, i;
- struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
- struct dmx_demux *demux = priv->demux;
- unsigned char *mac = (unsigned char *) dev->dev_addr;
-
+ int ret = 0, i;
+ struct dvb_net_priv *priv = dev->priv;
+ struct dmx_demux *demux = priv->demux;
+ unsigned char *mac = (unsigned char *) dev->dev_addr;
+
dprintk("%s: rx_mode %i\n", __FUNCTION__, priv->rx_mode);
+ mutex_lock(&priv->mutex);
if (priv->tsfeed || priv->secfeed || priv->secfilter || priv->multi_secfilter[0])
printk("%s: BUG %d\n", __FUNCTION__, __LINE__);
priv->tsfeed = NULL;
if (priv->feedtype == DVB_NET_FEEDTYPE_MPE) {
- dprintk("%s: alloc secfeed\n", __FUNCTION__);
- ret=demux->allocate_section_feed(demux, &priv->secfeed,
+ dprintk("%s: alloc secfeed\n", __FUNCTION__);
+ ret=demux->allocate_section_feed(demux, &priv->secfeed,
dvb_net_sec_callback);
- if (ret<0) {
- printk("%s: could not allocate section feed\n", dev->name);
- return ret;
- }
+ if (ret<0) {
+ printk("%s: could not allocate section feed\n", dev->name);
+ goto error;
+ }
- ret = priv->secfeed->set(priv->secfeed, priv->pid, 32768, 0, 1);
+ ret = priv->secfeed->set(priv->secfeed, priv->pid, 32768, 1);
- if (ret<0) {
- printk("%s: could not set section feed\n", dev->name);
- priv->demux->release_section_feed(priv->demux, priv->secfeed);
- priv->secfeed=NULL;
- return ret;
- }
+ if (ret<0) {
+ printk("%s: could not set section feed\n", dev->name);
+ priv->demux->release_section_feed(priv->demux, priv->secfeed);
+ priv->secfeed=NULL;
+ goto error;
+ }
- if (priv->rx_mode != RX_MODE_PROMISC) {
- dprintk("%s: set secfilter\n", __FUNCTION__);
+ if (priv->rx_mode != RX_MODE_PROMISC) {
+ dprintk("%s: set secfilter\n", __FUNCTION__);
dvb_net_filter_sec_set(dev, &priv->secfilter, mac, mask_normal);
- }
+ }
- switch (priv->rx_mode) {
- case RX_MODE_MULTI:
- for (i = 0; i < priv->multi_num; i++) {
- dprintk("%s: set multi_secfilter[%d]\n", __FUNCTION__, i);
+ switch (priv->rx_mode) {
+ case RX_MODE_MULTI:
+ for (i = 0; i < priv->multi_num; i++) {
+ dprintk("%s: set multi_secfilter[%d]\n", __FUNCTION__, i);
dvb_net_filter_sec_set(dev, &priv->multi_secfilter[i],
- priv->multi_macs[i], mask_normal);
- }
- break;
- case RX_MODE_ALL_MULTI:
- priv->multi_num=1;
- dprintk("%s: set multi_secfilter[0]\n", __FUNCTION__);
+ priv->multi_macs[i], mask_normal);
+ }
+ break;
+ case RX_MODE_ALL_MULTI:
+ priv->multi_num=1;
+ dprintk("%s: set multi_secfilter[0]\n", __FUNCTION__);
dvb_net_filter_sec_set(dev, &priv->multi_secfilter[0],
- mac_allmulti, mask_allmulti);
- break;
- case RX_MODE_PROMISC:
- priv->multi_num=0;
- dprintk("%s: set secfilter\n", __FUNCTION__);
+ mac_allmulti, mask_allmulti);
+ break;
+ case RX_MODE_PROMISC:
+ priv->multi_num=0;
+ dprintk("%s: set secfilter\n", __FUNCTION__);
dvb_net_filter_sec_set(dev, &priv->secfilter, mac, mask_promisc);
- break;
- }
-
- dprintk("%s: start filtering\n", __FUNCTION__);
- priv->secfeed->start_filtering(priv->secfeed);
+ break;
+ }
+
+ dprintk("%s: start filtering\n", __FUNCTION__);
+ priv->secfeed->start_filtering(priv->secfeed);
} else if (priv->feedtype == DVB_NET_FEEDTYPE_ULE) {
- struct timespec timeout = { 0, 30000000 }; // 30 msec
+ struct timespec timeout = { 0, 10000000 }; // 10 msec
/* we have payloads encapsulated in TS */
dprintk("%s: alloc tsfeed\n", __FUNCTION__);
ret = demux->allocate_ts_feed(demux, &priv->tsfeed, dvb_net_ts_callback);
if (ret < 0) {
printk("%s: could not allocate ts feed\n", dev->name);
- return ret;
+ goto error;
}
/* Set netdevice pointer for ts decaps callback. */
priv->tsfeed->priv = (void *)dev;
- ret = priv->tsfeed->set(priv->tsfeed, priv->pid,
- TS_PACKET, DMX_TS_PES_OTHER,
- 188 * 100, /* nr. of bytes delivered per callback */
+ ret = priv->tsfeed->set(priv->tsfeed,
+ priv->pid, /* pid */
+ TS_PACKET, /* type */
+ DMX_TS_PES_OTHER, /* pes type */
32768, /* circular buffer size */
- 0, /* descramble */
- timeout);
+ timeout /* timeout */
+ );
if (ret < 0) {
printk("%s: could not set ts feed\n", dev->name);
priv->demux->release_ts_feed(priv->demux, priv->tsfeed);
priv->tsfeed = NULL;
- return ret;
+ goto error;
}
dprintk("%s: start filtering\n", __FUNCTION__);
priv->tsfeed->start_filtering(priv->tsfeed);
} else
- return -EINVAL;
+ ret = -EINVAL;
- return 0;
+error:
+ mutex_unlock(&priv->mutex);
+ return ret;
}
static int dvb_net_feed_stop(struct net_device *dev)
{
- struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
- int i;
+ struct dvb_net_priv *priv = dev->priv;
+ int i, ret = 0;
dprintk("%s\n", __FUNCTION__);
+ mutex_lock(&priv->mutex);
if (priv->feedtype == DVB_NET_FEEDTYPE_MPE) {
- if (priv->secfeed) {
- if (priv->secfeed->is_filtering) {
- dprintk("%s: stop secfeed\n", __FUNCTION__);
- priv->secfeed->stop_filtering(priv->secfeed);
- }
+ if (priv->secfeed) {
+ if (priv->secfeed->is_filtering) {
+ dprintk("%s: stop secfeed\n", __FUNCTION__);
+ priv->secfeed->stop_filtering(priv->secfeed);
+ }
- if (priv->secfilter) {
- dprintk("%s: release secfilter\n", __FUNCTION__);
- priv->secfeed->release_filter(priv->secfeed,
- priv->secfilter);
- priv->secfilter=NULL;
- }
+ if (priv->secfilter) {
+ dprintk("%s: release secfilter\n", __FUNCTION__);
+ priv->secfeed->release_filter(priv->secfeed,
+ priv->secfilter);
+ priv->secfilter=NULL;
+ }
- for (i=0; i<priv->multi_num; i++) {
- if (priv->multi_secfilter[i]) {
+ for (i=0; i<priv->multi_num; i++) {
+ if (priv->multi_secfilter[i]) {
dprintk("%s: release multi_filter[%d]\n",
__FUNCTION__, i);
- priv->secfeed->release_filter(priv->secfeed,
- priv->multi_secfilter[i]);
- priv->multi_secfilter[i]=NULL;
- }
- }
+ priv->secfeed->release_filter(priv->secfeed,
+ priv->multi_secfilter[i]);
+ priv->multi_secfilter[i] = NULL;
+ }
+ }
- priv->demux->release_section_feed(priv->demux, priv->secfeed);
- priv->secfeed=NULL;
- } else
- printk("%s: no feed to stop\n", dev->name);
+ priv->demux->release_section_feed(priv->demux, priv->secfeed);
+ priv->secfeed = NULL;
+ } else
+ printk("%s: no feed to stop\n", dev->name);
} else if (priv->feedtype == DVB_NET_FEEDTYPE_ULE) {
if (priv->tsfeed) {
if (priv->tsfeed->is_filtering) {
else
printk("%s: no ts feed to stop\n", dev->name);
} else
- return -EINVAL;
- return 0;
+ ret = -EINVAL;
+ mutex_unlock(&priv->mutex);
+ return ret;
}
static int dvb_set_mc_filter (struct net_device *dev, struct dev_mc_list *mc)
{
- struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
+ struct dvb_net_priv *priv = dev->priv;
if (priv->multi_num == DVB_NET_MULTICAST_MAX)
return -ENOMEM;
}
-static void wq_set_multicast_list (void *data)
+static void wq_set_multicast_list (struct work_struct *work)
{
- struct net_device *dev = data;
- struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
+ struct dvb_net_priv *priv =
+ container_of(work, struct dvb_net_priv, set_multicast_list_wq);
+ struct net_device *dev = priv->net;
dvb_net_feed_stop(dev);
-
priv->rx_mode = RX_MODE_UNI;
-
- if(dev->flags & IFF_PROMISC) {
+ netif_tx_lock_bh(dev);
+
+ if (dev->flags & IFF_PROMISC) {
dprintk("%s: promiscuous mode\n", dev->name);
priv->rx_mode = RX_MODE_PROMISC;
} else if ((dev->flags & IFF_ALLMULTI)) {
priv->rx_mode = RX_MODE_MULTI;
priv->multi_num = 0;
- for (mci = 0, mc=dev->mc_list;
+ for (mci = 0, mc=dev->mc_list;
mci < dev->mc_count;
mc = mc->next, mci++) {
dvb_set_mc_filter(dev, mc);
}
}
- dvb_net_feed_start(dev);
- }
+ netif_tx_unlock_bh(dev);
+ dvb_net_feed_start(dev);
+}
static void dvb_net_set_multicast_list (struct net_device *dev)
{
- struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
+ struct dvb_net_priv *priv = dev->priv;
schedule_work(&priv->set_multicast_list_wq);
}
-static void wq_restart_net_feed (void *data)
+static void wq_restart_net_feed (struct work_struct *work)
{
- struct net_device *dev = data;
+ struct dvb_net_priv *priv =
+ container_of(work, struct dvb_net_priv, restart_net_feed_wq);
+ struct net_device *dev = priv->net;
if (netif_running(dev)) {
dvb_net_feed_stop(dev);
static int dvb_net_set_mac (struct net_device *dev, void *p)
{
- struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
+ struct dvb_net_priv *priv = dev->priv;
struct sockaddr *addr=p;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
static int dvb_net_open(struct net_device *dev)
{
- struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
+ struct dvb_net_priv *priv = dev->priv;
priv->in_use++;
dvb_net_feed_start(dev);
static int dvb_net_stop(struct net_device *dev)
{
- struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
+ struct dvb_net_priv *priv = dev->priv;
priv->in_use--;
- return dvb_net_feed_stop(dev);
+ return dvb_net_feed_stop(dev);
}
static struct net_device_stats * dvb_net_get_stats(struct net_device *dev)
{
- return &((struct dvb_net_priv*) dev->priv)->stats;
+ return &((struct dvb_net_priv*) dev->priv)->stats;
}
-
static void dvb_net_setup(struct net_device *dev)
{
ether_setup(dev);
dev->mtu = 4096;
dev->mc_count = 0;
dev->hard_header_cache = NULL;
-
dev->flags |= IFF_NOARP;
}
static int dvb_net_add_if(struct dvb_net *dvbnet, u16 pid, u8 feedtype)
{
- struct net_device *net;
+ struct net_device *net;
struct dvb_net_priv *priv;
int result;
int if_num;
-
+
if (feedtype != DVB_NET_FEEDTYPE_MPE && feedtype != DVB_NET_FEEDTYPE_ULE)
return -EINVAL;
if ((if_num = get_if(dvbnet)) < 0)
net = alloc_netdev(sizeof(struct dvb_net_priv), "dvb", dvb_net_setup);
if (!net)
return -ENOMEM;
-
+
if (dvbnet->dvbdev->id)
snprintf(net->name, IFNAMSIZ, "dvb%d%u%d",
dvbnet->dvbdev->adapter->num, dvbnet->dvbdev->id, if_num);
snprintf(net->name, IFNAMSIZ, "dvb%d_%d",
dvbnet->dvbdev->adapter->num, if_num);
- net->addr_len = 6;
+ net->addr_len = 6;
memcpy(net->dev_addr, dvbnet->dvbdev->adapter->proposed_mac, 6);
dvbnet->device[if_num] = net;
-
+
priv = net->priv;
- priv->demux = dvbnet->demux;
- priv->pid = pid;
+ priv->net = net;
+ priv->demux = dvbnet->demux;
+ priv->pid = pid;
priv->rx_mode = RX_MODE_UNI;
priv->need_pusi = 1;
priv->tscc = 0;
priv->feedtype = feedtype;
reset_ule(priv);
- INIT_WORK(&priv->set_multicast_list_wq, wq_set_multicast_list, net);
- INIT_WORK(&priv->restart_net_feed_wq, wq_restart_net_feed, net);
+ INIT_WORK(&priv->set_multicast_list_wq, wq_set_multicast_list);
+ INIT_WORK(&priv->restart_net_feed_wq, wq_restart_net_feed);
+ mutex_init(&priv->mutex);
+
+ net->base_addr = pid;
- net->base_addr = pid;
-
if ((result = register_netdev(net)) < 0) {
dvbnet->device[if_num] = NULL;
free_netdev(net);
}
printk("dvb_net: created network interface %s\n", net->name);
- return if_num;
+ return if_num;
}
-
-static int dvb_net_remove_if(struct dvb_net *dvbnet, unsigned int num)
+static int dvb_net_remove_if(struct dvb_net *dvbnet, unsigned long num)
{
struct net_device *net = dvbnet->device[num];
struct dvb_net_priv *priv;
dvb_net_stop(net);
flush_scheduled_work();
printk("dvb_net: removed network interface %s\n", net->name);
- unregister_netdev(net);
+ unregister_netdev(net);
dvbnet->state[num]=0;
dvbnet->device[num] = NULL;
free_netdev(net);
return 0;
}
-
static int dvb_net_do_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *parg)
{
- struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
- struct dvb_net *dvbnet = (struct dvb_net *) dvbdev->priv;
+ struct dvb_device *dvbdev = file->private_data;
+ struct dvb_net *dvbnet = dvbdev->priv;
if (((file->f_flags&O_ACCMODE)==O_RDONLY))
return -EPERM;
-
+
switch (cmd) {
case NET_ADD_IF:
{
- struct dvb_net_if *dvbnetif=(struct dvb_net_if *)parg;
+ struct dvb_net_if *dvbnetif = parg;
int result;
-
+
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
{
struct net_device *netdev;
struct dvb_net_priv *priv_data;
- struct dvb_net_if *dvbnetif=(struct dvb_net_if *)parg;
+ struct dvb_net_if *dvbnetif = parg;
if (dvbnetif->if_num >= DVB_NET_DEVICES_MAX ||
!dvbnet->state[dvbnetif->if_num])
return -EINVAL;
netdev = dvbnet->device[dvbnetif->if_num];
- priv_data=(struct dvb_net_priv*)netdev->priv;
+
+ priv_data = netdev->priv;
dvbnetif->pid=priv_data->pid;
dvbnetif->feedtype=priv_data->feedtype;
break;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if ((unsigned int) parg >= DVB_NET_DEVICES_MAX)
+ if ((unsigned long) parg >= DVB_NET_DEVICES_MAX)
return -EINVAL;
- ret = dvb_net_remove_if(dvbnet, (unsigned int) parg);
+ ret = dvb_net_remove_if(dvbnet, (unsigned long) parg);
if (!ret)
module_put(dvbdev->adapter->module);
return ret;
/* binary compatiblity cruft */
case __NET_ADD_IF_OLD:
{
- struct __dvb_net_if_old *dvbnetif=(struct __dvb_net_if_old *)parg;
+ struct __dvb_net_if_old *dvbnetif = parg;
int result;
if (!capable(CAP_SYS_ADMIN))
{
struct net_device *netdev;
struct dvb_net_priv *priv_data;
- struct __dvb_net_if_old *dvbnetif=(struct __dvb_net_if_old *)parg;
+ struct __dvb_net_if_old *dvbnetif = parg;
if (dvbnetif->if_num >= DVB_NET_DEVICES_MAX ||
!dvbnet->state[dvbnetif->if_num])
- return -EINVAL;
+ return -EINVAL;
netdev = dvbnet->device[dvbnetif->if_num];
- priv_data=(struct dvb_net_priv*)netdev->priv;
+
+ priv_data = netdev->priv;
dvbnetif->pid=priv_data->pid;
break;
}
};
static struct dvb_device dvbdev_net = {
- .priv = NULL,
- .users = 1,
- .writers = 1,
- .fops = &dvb_net_fops,
+ .priv = NULL,
+ .users = 1,
+ .writers = 1,
+ .fops = &dvb_net_fops,
};
struct dmx_demux *dmx)
{
int i;
-
+
dvbnet->demux = dmx;
for (i=0; i<DVB_NET_DEVICES_MAX; i++)