- 31 10月, 2013 1 次提交
-
-
由 Alexander Aring 提交于
On receiving side we don't need to set any headers in skb because the 6LoWPAN layer do not access it. Currently these values will set twice after calling netif_rx. Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Reviewed-by: NWerner Almesberger <werner@almesberger.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 29 10月, 2013 5 次提交
-
-
由 Alexander Aring 提交于
Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Reviewed-by: NWerner Almesberger <werner@almesberger.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Alexander Aring 提交于
This patch removes the assignment of skb->dev. We don't need it here because we use the netdev_alloc_skb_ip_align function which already sets the skb->dev. Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Reviewed-by: NWerner Almesberger <werner@almesberger.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Alexander Aring 提交于
This patch uses the netdev_alloc_skb instead dev_alloc_skb function and drops the seperate assignment to skb->dev. Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Reviewed-by: NWerner Almesberger <werner@almesberger.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Alexander Aring 提交于
The err variable can only be zero in this case. Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Reviewed-by: NWerner Almesberger <werner@almesberger.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Alexander Aring 提交于
Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Reviewed-by: NWerner Almesberger <werner@almesberger.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 09 10月, 2013 2 次提交
-
-
由 Alan Ott 提交于
When a lowpan link to a wpan device is created, set the hardware address of the lowpan link to that of the wpan device. Signed-off-by: NAlan Ott <alan@signal11.us> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Alan Ott 提交于
Refuse to create 6lowpan links if the actual hardware interface is of any type other than ARPHRD_IEEE802154. Signed-off-by: NAlan Ott <alan@signal11.us> Suggested-by: NAlexander Aring <alex.aring@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 21 8月, 2013 5 次提交
-
-
由 Alexander Aring 提交于
Handle context based address when an unspecified address is given. For other context based address we print a warning and drop the packet because we don't support it right now. Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Reviewed-by: NWerner Almesberger <werner@almesberger.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Alexander Aring 提交于
This patch drops the pre and postcount calculation from the lowpan_uncompress_addr function.We use instead a switch/case over address_mode value. The original implementation has several bugs in this function and it was hard to decrypt how it works. To make it maintainable and fix these bugs this patch basically reimplements lowpan_uncompress_addr from scratch. A list of bugs we found in the current implementation: 1) Properly support uncompression of short-address based IPv6 addresses (instead of basically copying garbage) 2) Fix use and uncompression of long-addresses based IPv6 addresses 3) Add missing ff:fe00 in the case of SAM/DAM = 2 and M = 0 Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Reviewed-by: NWerner Almesberger <werner@almesberger.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Alexander Aring 提交于
Add function to uncompress multicast address. This function split the uncompress function for a multicast address in a seperate function. To uncompress a multicast address is different than a other non-multicasts addresses according to rfc6282. Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Reviewed-by: NWerner Almesberger <werner@almesberger.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David Hauweele 提交于
When a new 6lowpan fragment is received, a skbuff is allocated for the reassembled packet. However when a 6lowpan packet compresses link-local addresses based on link-layer addresses, the processing function relies on the skb mac control block to find the related link-layer address. This patch copies the control block from the first fragment into the newly allocated skb to keep a trace of the link-layer addresses in case of a link-local compressed address. Edit: small changes on comment issue Signed-off-by: NDavid Hauweele <david@hauweele.net> Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Reviewed-by: NWerner Almesberger <werner@almesberger.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Alexander Aring 提交于
This patch simplify the handling to set fields inside of struct ipv6hdr to zero. Instead of setting some memory regions with memset to zero we initialize the whole ipv6hdr to zero. This is a simplification for parsing the 6lowpan header for the upcomming patches. Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Reviewed-by: NWerner Almesberger <werner@almesberger.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 29 5月, 2013 1 次提交
-
-
由 Jiri Pirko 提交于
So far, only net_device * could be passed along with netdevice notifier event. This patch provides a possibility to pass custom structure able to provide info that event listener needs to know. Signed-off-by: NJiri Pirko <jiri@resnulli.us> v2->v3: fix typo on simeth shortened dev_getter shortened notifier_info struct name v1->v2: fix notifier_call parameter in call_netdevice_notifier() Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 08 4月, 2013 1 次提交
-
-
由 Alan Ott 提交于
dev_queue_xmit() will return a positive value if the packet could not be queued, often because the real network device (in our case the mac802154 wpan device) has its queue stopped. lowpan_xmit() should handle the positive return code (for the debug statement) and return that value to the higher layer so the higher layer will retry sending the packet. Signed-off-by: NAlan Ott <alan@signal11.us> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 27 3月, 2013 11 次提交
-
-
由 Tony Cheneau 提交于
Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
This formatting issue was introduced with commit d4ac3236Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
The previous code would just compress the UDP header and send the compressed UDP header along with the uncompressed one. Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
Sets the sequence number in the frame format. Without this fix, the sequence number is always set to 0. This makes trafic analysis very hard. Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
Add pr_debug() call in order to debug 6LoWPAN fragmentation and reassembly. Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
The first fragment, FRAG1, must contain some payload according to the specs. However, as it is currently written, the first fragment will remain empty and only contain the 6lowpan headers. This patch also extracts the transport layer information from the first fragment. This information is used later on when uncompressing UDP header. Thanks to Wolf-Bastian Pöttner for noticing that the offset value was not properly initialized. Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
The IEEE 802.15.4 standard uses the 0xFFFF short address (2 bytes) for message broadcasting. Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
This feature is especially important when using fragmentation, because the reassembly mechanism cannot recover from the loss of a fragment. Note that some hardware ignore this flag and not will not transmit acknowledgments even if this is set. Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
This causes a drop of the UDP packet. Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 07 2月, 2013 2 次提交
-
-
由 Alexander Aring 提交于
head buffer is only temporary available in lowpan_header_create. So it's not necessary to put it on the heap. Also fixed a comment codestyle issue. Signed-off-by: NAlexander Aring <alex.aring@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
It's called from both __init and __exit code, so neither tag is appropriate. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 19 1月, 2013 2 次提交
-
-
由 Alan Ott 提交于
Handle the reception of uncompressed packets (dispatch type = IPv6). Signed-off-by: NAlan Ott <alan@signal11.us> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Alan Ott 提交于
Refactor the handing of the skb's to the individual lowpan devices into a function. Signed-off-by: NAlan Ott <alan@signal11.us> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 01 12月, 2012 1 次提交
-
-
由 Alan Ott 提交于
Change the threshold for framentation of a lowpan packet from using the MTU size to now use the MTU size minus the checksum length, which is added by the hardware. For IEEE 802.15.4, this effectively changes it from 127 bytes to 125 bytes. Signed-off-by: NAlan Ott <alan@signal11.us> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 19 9月, 2012 1 次提交
-
-
由 Peter Senna Tschudin 提交于
Found by http://coccinelle.lip6.fr/Signed-off-by: NPeter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 02 9月, 2012 2 次提交
-
-
由 Alan Ott 提交于
Before, it was impossible to remove a wpan device which had lowpan attached to it. Signed-off-by: NAlan Ott <alan@signal11.us> Signed-off-by: NDavid S. Miller <davem@tempietto.lan>
-
由 Alan Ott 提交于
Since lowpan_process_data() modifies the skb (by calling skb_pull()), we need our own copy so that it doesn't affect the data received by other protcols (in this case, af_ieee802154). Signed-off-by: NAlan Ott <alan@signal11.us> Signed-off-by: NDavid S. Miller <davem@tempietto.lan>
-
- 17 7月, 2012 3 次提交
-
-
由 Tony Cheneau 提交于
Lenght field should be encoded using big endian byte order, such as intend in the specs. As it is currently written, the len field would not be decoded properly on an implementation using the correct byte ordering. Hence, it could lead to interroperability issues. Also, I rewrote the code so that iphc0 argument of lowpan_alloc_new_frame could be removed. Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
The tag field should be stored and accessed using big endian byte order (as intended in the specs). Or else, when displayed with a trafic analyser, such a Wireshark, the field not properly displayed (e.g. 0x01 00 instead of 0x00 01, and so on). Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Tony Cheneau 提交于
When a UDP packet gets fragmented, a crash will occur at reassembly time. This is because skb->transport_header is not set during earlier period of fragment reassembly. As a consequence, call to udp_hdr() return NULL and uh (which is NULL) gets dereferenced without much test. Signed-off-by: NTony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 12 7月, 2012 3 次提交
-
-
6lowpan module starts collecting incomming frames and fragments right after lowpan_module_init() therefor it will be better to clean unfinished fragments in lowpan_cleanup_module() function instead of doing it when link goes down. Changed spinlocks type to prevent deadlock with expired timer event and removed unused one. Signed-off-by: NAlexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
Function lowpan_alloc_new_frame() takes u8 tag as an argument. However, its only caller, lowpan_process_data() passes down a u16. Hence, the tag value can get corrupted. This prevent 6lowpan fragment reassembly of a message when the fragment tag value is over 256. Signed-off-by: NAlexander Smirnov <alex.bluesman.smirnov@gmail.com> Cc: Tony Cheneau <tony.cheneau@amnesiak.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
Use netdev_alloc_skb_ip_align() instead of alloc_skb() to get some extra headroom in case we need to forward this frame in a tunnel or something else. Signed-off-by: NAlexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-