Commit Graph

198 Commits

Author SHA1 Message Date
Xiang Xiao 6c484847d5 net/: Decouple autoconfig and icmpv6 socket to avoid the invalid kconfig combination. 2019-09-20 12:45:05 -06:00
Gregory Nutt 23e1d2e403 Dispatch ICMP_POLL to device's callback list too since icmpv6_neighbor still append the callback into this list. 2019-09-20 07:54:10 -06:00
Gregory Nutt a52ceac13e net/: Now handles reception of IPv4 packets with larger IPv4 headers containing options. 2019-08-31 12:25:30 -06:00
Gregory Nutt 9bdde04636 net/Kconfig: Ethernet packet buffer size cannot be permitted to go below 1294 is IPv6 is selected. 2019-08-31 09:08:32 -06:00
Gregory Nutt d701dc6a4a net/dev/devif_poll.c: Fix compile error introduced by c9b73f5139. Typo: DEVIF_ICMP6, not DEVIF_ICMPV6. 2019-03-19 16:46:11 -06:00
anchao c9b73f5139 net/icmp and icmpv6: Bind icmp callback from device to connection. Resolves the issue that bind() could not be called before send() 2019-03-19 09:43:32 -06:00
Gregory Nutt f6b00e1966 tools/nxstyle.c: Fix logic error that prevent detecion of '/' and '/=' as operators. net/: Minor updates resulting from testing tools/nxstyle. 2019-03-11 12:48:39 -06:00
Gregory Nutt bfa8c362c6 net/devif/devif_loopback.c: Fix warning: implicit declaration of memcmp. 2018-11-11 11:56:37 -06:00
Gregory Nutt 854046a931 /net/devif/ipv6_input.c: Correct handling of IPv6 extension headers. The main confusion was that the payload length in the IPv6 header does not include its extension headers.
net/icmpv6/icmpv6_input.c:  Correct caculation of the ICMPv6 header address
    net/mld/mld_query.c:  Correct back test for group found.
    net/mld/mld_report.c: Fix host vs. network order problem.
    net/mld/mld_send.c: Correct the address used in sending the General Query.  It should be the unspecified address in that case.
    net/mld:  Querying workaround.  The MLD implementation does not follow the RFC correct when it is the Querier.  The Querier should use a general query and get query messages from all members of all groups.  This would be driven by a single timer since all groups are queried at once.  Instead, the design currently uses a Multicast Address Specific Query with one timer per group and ignores groups that we are not members of.
2018-11-10 11:29:02 -06:00
Gregory Nutt ae29df7445 net/devif/ipv6_input.c: Remove an old, outdated comment. 2018-11-09 17:53:31 -06:00
Gregory Nutt a583488829 net/devif/ipv6_input.c: Fix a logic error when the received IPv6 srcaddr is a multicast address. Exiting logic only supported UDP multicast. But MLD and certain other ICMPv6 packets also require acceptance of multicast packets. 2018-11-09 16:26:49 -06:00
Xiang Xiao 7f8496c643 net/neighbor: Simplify the neighbor table aging process 2018-11-09 14:08:18 -06:00
Xiang Xiao 44bcd2c44d net/: add NET_ICMP[v6]_NO_STACK for usrsock case 2018-11-09 11:25:57 -06:00
Gregory Nutt 33ed27ae65 Squashed commit of the following:
net/mld: Checksum calculation needs to know the full size of the IPv6 header, including the size of the extension headers.  The payload size in the IPv64 header must include the extension headers (not considered part of the header in this case).  Fixes a few additional errors in size, endian-ness and checksum calculations.  Wireshark now reports the the outgoing Report has a good checksum.

    net/mld/mld_query.c:  Add a cast to assure that the left shift does not overflow.
2018-11-05 08:56:07 -06:00
Gregory Nutt 42a018747e net/devif, net/tcp, and net/udp: Extend the logic of 6c0ab0e077 so that all support Transport protocols support by IPv6 can handle the presence of IPv6 header extension options. 2018-11-02 17:50:01 -06:00
Gregory Nutt 6c0ab0e077 Squashed commit of the following:
include/nuttx/net/ipv6ext.h:  Fix some terminology:  Hop-by-hop, not Hop-to-hop or Hop2hop.

    net/devif/ipv6_input.c and net/icmpv6/icmpv6_input.c:  Add logic to skiip over the variable number of IPv6 extension headers that may be present between the IPv6 header and the transport layer header.  The extension headers are simply ignored.  This is necessary because with MLD, certain incoming messages may have, at a mimimum, a Router Alert Hop-by-hop extension header.

    net/inet/ipv6_setsockopt.c:  Implement the IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP socket options.
2018-11-02 12:06:57 -06:00
Gregory Nutt 5b7ef856a0 Squashed commit of the following:
net/mld:  The MLD logic now compiles and is much less toxic.  It still is not a proper MLD implementation:  (1) It is basically a port of IGMP, tweaked to work with IPv6 and ICMPv6 MLD messages, (2) it needs a proper analysis and comparison with RFC 3810, and (3) it is completely untested.  For this reason, it will remain EXPERIMENTAL for some time.
    net/mld:  Add some missing macros, more fixes related to IPv6 vs IPv4 types,
    net/mld:  More compilation cleaning.  Most fixups for IPv6 vs IPv4 types.
    net/mld:  Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems.
    net/mld:  Add support for MLD statistics.
    net/mld:  Hook in MLD poll and packet transmission logic.
    net/mld:  Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input.  Add functions to catch MLD messages dispatched by ICMPv6 input logic.
    net/mld:  As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD).
    net/mld:  More compilation cleaning.  Most fixups for IPv6 vs IPv4 types.
    net/mld:  Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems.
    net/mld:  Add support for MLD statistics.
    net/mld:  Hook in MLD poll and packet transmission logic.
    net/mld:  Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input.  Add functions to catch MLD messages dispatched by ICMPv6 input logic.
    net/mld:  As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD).
2018-11-01 15:19:47 -06:00
Gregory Nutt 933d38a209 include/nuttx/net/igmp.h: Remove bogus support for IPv6 IGMP. There is no such thing. 2018-11-01 08:53:48 -06:00
Gregory Nutt dcb7ce8afd tools/nxstyle.c: Add logic to catch another formatting error and to eliminate some false alarms. Includes cosmetic changes to several files ... mostly as a result of testing nxstyle and finding issues. 2018-10-29 16:25:57 -06:00
Anthony Merlino 4898c477a9 Merged in antmerlino/nuttx/multicast-fix (pull request #739)
Fixes logic in ipv6_input to handle more than ff02::/16 multicast addresses. Don't forward mcast packets if scope is not appropriate

Approved-by: GregoryN <gnutt@nuttx.org>
2018-10-27 18:12:37 +00:00
Gregory Nutt a85f0e4cd5 networking: Update some comments to correct the naming used for the link layer. 2018-10-20 06:35:39 -06:00
Gregory Nutt 5d042b41c3 Rename the file devif_loopbackout.c to devif_loopback.c 2018-08-25 08:36:02 -06:00
Gregory Nutt 9bc951a335 Rename devif_loopback_out to devi_loopback 2018-08-25 08:33:21 -06:00
Xiang Xiao 0074afa0ac net/netdev: add devif_loopback_out() to check the loopback case where a packet is being sent to itself. Modify the net driver to call this function in this case. This function will simply re-inject the packet back into the network and the network driver will not put anything on the wire. 2018-08-24 09:21:33 -06:00
Gregory Nutt 22cd0d47fa This commit attempts remove some long standard confusion in naming and some actual problems that result from the naming confusion. The basic problem is the standard MTU does not include the size of the Ethernet header. For clarity, I changed the naming of most things called MTU to PKTSIZE. For example, CONFIG_NET_ETH_MTU is now CONFIG_NET_ETH_PKTSIZE.
This makes the user interface a little hostile.  People thing of an MTU of 1500 bytes, but the corresponding packet is really 1514 bytes (including the 14 byte Ethernet header).  A more friendly solution would configure the MTU (as before), but then derive the packet buffer size by adding the MAC header length.  Instead, we define the packet buffer size then derive the MTU.

The MTU is not common currency in networking.  On the wire, the only real issue is the MSS which is derived from MTU by subtracting the IP header and TCP header sizes (for the case of TCP).  Now it is derived for the PKTSIZE by subtracting the IP header, the TCP header, and the MAC header sizes.  So we should be all good and without the recurring 14 byte error in MTU's and MSS's.

Squashed commit of the following:

    Trivial update to fix some spacing issues.
    net/: Rename several macros containing _MTU to _PKTSIZE.
    net/: Rename CONFIG_NET_SLIP_MTU to CONFIG_NET_SLIP_PKTSIZE and similarly for CONFIG_NET_TUN_MTU.  These are not the MTU which does not include the size of the link layer header.  These are the full size of the packet buffer memory (minus any GUARD bytes).
    net/: Rename CONFIG_NET_6LOWPAN_MTU to CONFIG_NET_6LOWPAN_PKTSIZE and similarly for CONFIG_NET_TUN_MTU.  These are not the MTU which does not include the size of the link layer header.  These are the full size of the packet buffer memory (minus any GUARD bytes).
    net/: Rename CONFIG_NET_ETH_MTU to CONFIG_NET_ETH_PKTSIZE.  This is not the MTU which does not include the size of the link layer header.  This is the full size of the packet buffer memory (minus any GUARD bytes).
    net/: Rename the file d_mtu in the network driver structure to d_pktsize.  That value saved there is not the MTU.  The packetsize is the memory large enough to hold the maximum packet PLUS the size of the link layer header.  The MTU does not include the link layer header.
2018-07-04 14:10:40 -06:00
Gregory Nutt 715d561c41 Trivial spelling corrections in comments; update some comments in a Kconfig file. 2018-06-24 15:01:49 -06:00
Gregory Nutt 433f29eea2 net/: Rename CONFIG_TCP_REASSEMBLY to CONFIG_IPv4_REASSEMBLY. Add some fixes to get a clen compile with CONFIG_IPv4_REASSEMBLY enabled. There are several problems with the current implementation: It is untested (and depends on CONFIG_EXPERMIMENTAL). It uses some Ethernet specific definitions (and depends on CONFIG_NET_ETHERNET). There is only a single reassembly buffer. The last two issues prevent use of this feature in any context where IPv4 packets may be reassembled for multiple network devices concurrently). 2018-06-24 12:06:12 -06:00
Gregory Nutt 1acfac3eb6 net/: More fixes to wrong comments from old change from the interrupt driven network to the work-queue driven network. 2018-06-23 15:03:01 -06:00
Gregory Nutt aabdc00e8c net/: Fix some incorrect comments that go back for years (but have also been cloned in newer files). The network was once interrupt driver, but now runs on the work queue with a semaphore to enforce mutual exclusion. 2018-06-23 14:09:06 -06:00
Gregory Nutt a0e169ad7b net/: Fix a sixlowpan typo bug recently introduced; Rename g_ipv6_allzeroaddre with the more meaning g_ipv6_unspecaddr since the all-zero address is the IPv6 unspecified address (sometime IN6_ADDR_ANY). Remove more inline tests for IPv6 multicast with tcommint net_is_addr_mcast() macro. Update some comments. 2018-06-23 12:53:27 -06:00
Gregory Nutt 8fdbb1e0a4 Elimate use of the non-standard type systime_t and replace it the equivalent, standard type clock_t
Squashed commit of the following:

    sched:  Rename all use of system_t to clock_t.
    syscall:  Rename all use of system_t to clock_t.
    net:  Rename all use of system_t to clock_t.
    libs:  Rename all use of system_t to clock_t.
    fs:  Rename all use of system_t to clock_t.
    drivers:  Rename all use of system_t to clock_t.
    arch:  Rename all use of system_t to clock_t.
    include:  Remove definition of systime_t; rename all use of system_t to clock_t.
2018-06-16 12:16:13 -06:00
Gregory Nutt 0c007be4bd This comment adds (1) basic support for AF_BLUETOOTH sockets. The logic compiles but is still incomplete. Support for Bluetooth is general is still dependent on CONFIG_EXPERMIMENTAL because it is not yet ready for used.
Squashed commit of the following:

    wireless/bluetooth:  Some small changes that gets to a clean compile by just eliminating some incorrect implementations (still with a lot of warnings.  The logic is still incomplete but now not so lethal.
    wireless/bluetooth:  Restructuring:  Connection interfaces should internal to wireless/bluetooth.  include/nuttx/wireless/bt_conn.h removed and merged with wireless/bluetooth/bt_conn.h.  Several fix to get closer to bt_netdev.c compiling.  Need to design some not interfaces and use some existing interfaces to send and receiv packets.
    wireless/bluetooth: Some organization with some network device compile errors fixed.  Still not even close to compiling.
    net/bluetooth:  Fix numerous compile issues; Still open design issues with regard to the interface with the Bluetooth stack.
    wireless/bluetooth:  Create bt_netdev.c with a crude copy of mac802154_netdev.c.  Does not not even compile yet.
    include/nuttx/net:  Add bluetooth.h.  Content is not yet correct.
    net/netpackets:  Add bluetooth.h.  Update net/bluetooth to use new socket address definition.
    net/bluetooth:  Some fixes for initial build.
    net/bluetooth:  Add initial support for Bluetooth sockets.  The initial cut is just the a clone of the IEEE 802.15.4 socket support with name changes.
    net/ieee802154:  Fix some typos noted when cloning to create net/bluetooth.
2018-03-31 14:55:03 -06:00
Gregory Nutt 2bb6ec41d1 net/: Trivial fix for a typo. 2018-03-30 12:27:04 -06:00
Gregory Nutt b54ffe858a Standardization of some function headers. 2018-03-13 09:52:27 -06:00
Gregory Nutt 7cf88d7dbd Make sure that labeling is used consistently in all function headers. 2018-02-01 10:00:02 -06:00
Anthony Merlino 2b4f0b4a25 Merged in antmerlino/nuttx/ipfwd-remove-redundant-llheadersize (pull request #548)
net/devif: Do not add link layer header size to d_len inside devif_forward().

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2017-11-29 00:54:17 +00:00
Gregory Nutt c93320ccd6 net/: Fix some issues with regard to UDP broadcast handling. This is Bitbucket Issue #77. This commit tentatively closes the issues, subject to verification. 2017-11-22 12:06:36 -06:00
Gregory Nutt 70c59a9d91 This commit adds support for semi-standard IPPROTO_ICMP6 sockets. This is a replacement for the non-standard ICMPv6 ping support that violated the portable POSIX OS interface.
Squashed commit of the following:

    net/icmpv6: IPPROT_ICMP6 socket logic now builds without error.
    net/icmpv6:  Add support for read-ahead and poll(). Initial commit is just cloned from ICMP with the appropriate name changes.
    configs/:  All defconfig filess that include CONFIG_NET_ICMPv6_SOCKET=y need to select CONFIG_SYSTEM_PING6=y and deselect CONFIG_DISABLE_POLL.
    Update NSH documention to show that ping6 is now a built in command.
    net/icmpv6:  Add icmpv6_sendto.c and icmpv6_recvfrom.c.  Initial versions are just clones from icmp/ with appropriate name changes.
    net/icmpv6:  Clone some ICMP socket logic as the beginning of support for ICMPv6 socket support.
    Rename CONFIG_NET_ICMPv6_PING to CONFIG_NET_ICMPv6_SOCKET.  Move prototype for icmpv6_ping from include/nuttx/net/icmpv6 to net/icmpv6/icmpv6.h
2017-10-24 11:23:08 -06:00
Gregory Nutt cccc86da09 This change adds support for semi-standard IPPROTO_ICMP AF_INET datagram sockets. This replaces the old ad hoc, nonstandard way of implementing ping with a more standard, socket interface.
Squashed commit of the following:

    net/icmp:  Finishes off icmp_recvfrom().
    net/icmp:  Add readahead support for IPPROTO_ICMP sockets.
    net/icmp:  Add poll() support for IPPROTO_ICMP sockets.
    net/icmp:  Add a connection structure for IPPROTO_ICMP sockets.
    net/icmp:  Implements sendto for the IPPROTO_ICMP socket.
    net/icmp:  Move icmp_sendto() and icmp_recvfrom() to separate files.  They are likely to be complex (when they are implemented).
    net/icmp:  Hook IPPROTO_ICMP sockets into network.  Fix some naming collisions.  Still missing basic ICMP send/receive logic.
    configs: apps/system/ping current need poll() enabled.
    configs: All defconfig files that use to enable low-level support must now enabled CONFIG_SYSTEM_PING.
    net/icmp:  Adds basic build framework to support IPPROTO_ICMP sockets.
2017-10-23 08:45:12 -06:00
Gregory Nutt cf5cba953d There was a possible recursion that could eventually overflow the stack. The error occurred when closing the socket with inet_close() while a socket callback was still queued. When the socket callback was executed by devif_conn_event(), this resulted in a call to psock_send_eventhandler() with TCP_CLOSE flag set which then called tcp_lost_connection(). tcp_shutdown_monitor() then called tcp_callback() again, which again called psock_send_eventhandler(), and so on.... Noted by Pascal Speck. Solution is also similar to a solution proposed by Pascal Speck. 2017-10-19 11:55:51 -06:00
Gregory Nutt 88a87f8e3f 6LoWPAN: The original, Contiki-based design used only a single buffer for reassemblying larger packets. This could be a problem issue for hub configurations which really need the capability concurrently reassemble multiple incoming streams concurrently. These was also a design issue in that the reassembly buffer could be corrupted by outgoing packets. The design was extended to support multiple reassembly buffers, each associated with the reassembly tag and source address. This assures that there can be be no corruption of the reassembly once it has started. 2017-08-26 10:00:47 -06:00
Gregory Nutt b52034ffd2 PF_IEEE802154: With this commit PF_IEEE802154 address family is basically functional. More testing is needed, of course. 2017-08-19 18:50:50 -06:00
Gregory Nutt cff4ac6845 Squashed commit of the following:
commit 2a3ab1652a2c95bcfc8be8380fc7cbdcb6472938
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Sat Aug 19 08:44:31 2017 -0600

    PF_IEEE802154: Finish some missing bind() logic.  Add configs/sim configuration for testing.

commit 59be4b846a6e3bfe82087a888e3fdac9c3c414e5
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 19:30:04 2017 -0600

    PF_IEEE802154:  More renaming to decouple 6LoPAN from radios in general.

commit 69fabb1aea76e54381bdc13de28a3f1441fb42f4
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 19:21:11 2017 -0600

    PF_IEEE802154: Missed a few renamings.

commit ff0af1bb25567720934cc1c2a721ccd92cc35f89
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 17:46:58 2017 -0600

    PF_IEEE802154:  A few bugfixes

commit 01c7c84afd00cf907d280d30cfaf0fb2cf90e02e
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 17:01:31 2017 -0600

    PF_IEEE802154:  A few bugfixes

commit dcef4056d1c1488c93151135f3b7106977faa903
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 16:31:05 2017 -0600

    PF_IEEE802154: Bring in framework for sendto/recvfrom.  Currently just a crude port of functions from net/pkt and do not provide the implemenation needed.

commit 68c5b7b6dd3ab7eb2d0c19890abb38e6561b140e
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 15:18:31 2017 -0600

    Trivial fix to typo in comment

commit fd0af534c089569ccdbd59f13b85453de0a653ad
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 15:07:20 2017 -0600

    PF_IEEE802154: Add device lookup logic; Rename some things that used to be used only by 6LoWPAN but now must be shared with PF_IEEE802154 and need more generic naming.

commit 4fc80a1659f1c699b050775cefc7f6b631b46114
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 13:49:54 2017 -0600

    PF_IEEE802154: Add driver poll logic.

commit d83f71992df8764faa93f9425f1a7602a758f730
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 13:28:59 2017 -0600

    PF_IEEE802154:  Add frame input function.

commit 77561b8c4d5d7be1f8d8eb62cf1a07229afe2048
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 12:46:29 2017 -0600

    PF_IEEE802154: Socket type should be SOCK_DGRAM.  Hook in socket interface.

commit c0f90350282e9905d7f26a1b30f04cc6d6794648
Merge: 8b518abfd0 169c55e546
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 09:36:32 2017 -0600

    Merge remote-tracking branch 'origin/master' into pf_ieee802154

commit 8b518abfd07d492f5148f2c5fdf65604de9822da
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 09:35:39 2017 -0600

    PF_IEEE802154: Add initialization and connection management logic.

commit 98b62620b3cb420041d8ad14204f9410a8aace8c
Author: Gregory Nutt <gnutt@nuttx.org>
Date:   Fri Aug 18 07:52:51 2017 -0600

    PF_IEEE802154: Add basic build support and socket interface framework.
2017-08-19 08:48:52 -06:00
Gregory Nutt 6c4405561a Fix a few compile errors and warnings found in build testing 2017-08-12 10:27:55 -06:00
Gregory Nutt 78e90f0fc8 Fix a couple of problems found in build testing 2017-08-08 16:30:27 -06:00
Gregory Nutt efbb47999f Networking: Fix netdev_dev_lladdrsize. In some configurations, it could return the wrong size for the address of a packet radio. 2017-08-08 16:27:23 -06:00
Gregory Nutt aeb59383cf Remove CONFIG_NET_MULTILINK. This increases code size by a little, but greatly reduces the complexity of the network code. 2017-08-08 15:26:09 -06:00
Gregory Nutt bd7c84b23e Remove CONFIG_NETDEV_MULTINIC. This increases code size by a little, but greatly reduces the complexity of the network code. 2017-08-08 14:24:12 -06:00
Gregory Nutt 835ae2999d networking: Move a little more to the inet/ subdirectory. 2017-08-07 13:03:23 -06:00
Gregory Nutt 2ada7d5892 IPv6: Remove comparisons to the address with all ones set. IPv6 does not support broadcast addresses and certainly not in that form. Replace with multicast addresses beginning with 0xff02. 2017-08-07 11:50:50 -06:00