Commit Graph

217 Commits

Author SHA1 Message Date
Axel Lin
198fa5dbfa Remove duplicated include for lwip/inet_chksum.h
Include it once is enough.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Dirk Ziegelmeier <dirk@ziegelmeier.net>
2016-08-30 09:47:43 +02:00
Dirk Ziegelmeier
4b45baee10 Add some dual-stack notes to documentation 2016-08-26 15:58:18 +02:00
sg
4c390ad39c update netif address change triggers to tpc & udp to work with IPv6, too 2016-08-24 20:51:05 +02:00
Dirk Ziegelmeier
8426dfa14d Remove misleading comments from udp_send() and raw_send(). A pbuf may be added automatically in front of the chain to be able to send PBUF_REFs 2016-08-24 08:45:37 +02:00
Dirk Ziegelmeier
6fc7f84497 Minor: documentation updates 2016-08-24 08:19:51 +02:00
goldsimon
14fb48cd7a minor: whitespace cleanups 2016-08-19 09:41:34 +02:00
Dirk Ziegelmeier
c61c8f3766 Use udp_get_multicast_ttl/udp_set_multicast_ttl accessors where applicable 2016-08-16 08:08:06 +02:00
Dirk Ziegelmeier
f55c0e7864 Move rawapi.txt description to main page - this doc really should be found and read by users 2016-08-07 20:21:27 +02:00
Dirk Ziegelmeier
8d07629b71 Some documentation cleanups and include more comments that have been already in code into doxygen docs 2016-08-07 10:05:34 +02:00
Dirk Ziegelmeier
9c10daba93 Document netif API in doxygen module style 2016-07-26 17:53:07 +02:00
Dirk Ziegelmeier
bd79f6c055 Document DNS, memory pools and PBUFs as modules 2016-07-26 16:40:13 +02:00
Dirk Ziegelmeier
59295be4ef Some more RAW API documentation updates
Improve structure of documentation: PPP is now a module, too
2016-07-26 13:53:59 +02:00
Dirk Ziegelmeier
10acd8303d Start to document public RAW API via doxygen 2016-07-26 13:38:43 +02:00
Dirk Ziegelmeier
80be1a6bf8 Add links to new documentation pages in the relevant files 2016-07-25 08:20:39 +02:00
goldsimon
14ca418ac0 minor: coding style fixes 2016-07-05 07:36:51 +02:00
Dirk Ziegelmeier
8dc77ef558 doxygen updates - include IPv6 in documentation. Exclude include/netif/ppp/polarssl.
Convert TODO -> @todo
2016-06-22 20:18:23 +02:00
Joel Cunningham
8ac1b4825a udp: use netif addr as src for multicast sockets
Sockets bound to a multicast address could not transmit multicast
packets because the pcb local address did not match the netif address
even if the outgoing netif was resolved correctly.

To correct the issue, pcbs with a multicast local address will use
the outgoing netif address as the source address in IPv4.
2016-04-18 16:36:13 -04:00
Dirk Ziegelmeier
309e072238 Create new IP_IS_V4 macros and use them at instead of !IP_IS_V6 - since we now have an IPADDR_ANY_TYPE, just checking for !V6 does not mean it is V4 2016-04-06 22:31:31 +02:00
sg
8c7f513f4d patch #8358: allow more combinations of listening PCB for IPv6 2016-04-05 22:04:19 +02:00
Dirk Ziegelmeier
f97bf85fd6 udp.c: Allow udp_connect() on a dual-stack UDP PCB (type IPADDR_TYPE_ANY). This may be useful in some applications - no need to keep separate storage for target IP. 2016-03-22 15:12:16 +01:00
Dirk Ziegelmeier
2d80af1dcb Minor code cleanup in udp.c 2016-03-03 22:44:01 +01:00
Dirk Ziegelmeier
f3132c5290 udp: Fix possible NULL pointer dereference, update comments 2016-03-02 23:10:43 +01:00
Dirk Ziegelmeier
6aed6e659f Rework DHCP PCB handling: Old code registered one UDP PCB per netif where DHCP was active and there was a special case in udp_input() for this. New implementation uses one PCB for all netifs and removes special case in udp_input().
The old approach called udp_bind() on each of the PCBs, which puts them into udp_pcbs list. The PCBs were iterated on all non-DHCP udp_inputs() with no effect.
My cleanup removes the special handling in udp.c, and uses only one DHCP UDP PCB to catch all DHCP messages from all netifs. The dhcp_recv function then checks whether ip_current_input_netif() has DHCP enabled - if not, the message is ignored. The PCB is only created/registered when one or more PCBs have DHCP enabled.
2016-02-29 19:31:19 +01:00
Dirk Ziegelmeier
a5214abd04 udp: udp_send and udp_send_chksum: Check for PCB NULL pointer and PCB must not be the new IP_ANY_TYPE, but a real IPv4 and IPv6 address 2016-02-26 09:20:50 +01:00
Dirk Ziegelmeier
fd891081c4 minor: Cleanups in raw/tcp/udp code by using macros and reducing #ifdefs 2016-02-24 23:04:25 +01:00
Dirk Ziegelmeier
953b7bdd59 Implement UDP dual-stack PCB support
Create special IP address type "IPADDR_TYPE_ANY" for it.
SNMP uses new feature in non-netconn mode.

TODO: Same for TCP & RAW, adapt NETCONN to use this feature
2016-02-24 22:37:01 +01:00
sg
1dde3d6e56 Fixed bug #46524: "Device as dhcp server does not work after upgrade to lwip-1.4.1" 2016-02-24 22:13:58 +01:00
sg
ec49b68b38 minor: udp_input/local_match: coding style, added comments 2016-02-24 22:04:59 +01:00
Dirk Ziegelmeier
ac4b089b18 udp.c: Further udp_input simplifications
- Move local PCB matching code in a function that can be reused in SO_REUSE && SO_REUSE_RXTOALL case.
- Some checks have been written in the dual-stack version and then repeated with the ipv6-only version. Example:
IPv6 only: ip6_addr_ismulticast(ip6_current_dest_addr())
IPv4 AND IPv6: ip_addr_ismulticast(ip_current_dest_addr())
2016-02-24 19:57:20 +01:00
Dirk Ziegelmeier
005c196ed8 udp.c: Simplify and cleanup input PCB matching 2016-02-24 19:13:30 +01:00
Dirk Ziegelmeier
c805843e64 Change signature of ip_output, ip_output_if, ip_output_if_src, ip_output_hinted, ip_route, ip_netif_get_local_ip, ip_route_get_local_ip and tcp_eff_send_mss not to take an isipv6 parameter. Use the IP version of the destination address instead. 2016-02-22 13:38:40 +01:00
Dirk Ziegelmeier
880f1008d6 Together with Simon: Eliminate last instances of isipv6 member in pcbs;
Don't allow NULL pointers (IPv4 ANY) in connect() and sendto() functions as destinations since this does not make sense.
2016-02-22 13:03:51 +01:00
Dirk Ziegelmeier
be9cd800b0 Review with Simon: Init TCP/UDP/RAW PCBs with correct IP types in _new functions to make my changes work correct 2016-02-22 11:16:13 +01:00
Dirk Ziegelmeier
0106cf7ae0 Review with Simon: Remove dead code (since 2003) 2016-02-22 10:18:19 +01:00
Dirk Ziegelmeier
339e82d7aa Eliminate IP_PCB_IPVER_EQ macro 2016-02-21 19:45:51 +01:00
Dirk Ziegelmeier
5a25652c21 Eliminate IP_PCB_IPVER_INPUT_MATCH macro 2016-02-21 19:21:36 +01:00
Dirk Ziegelmeier
8f675c37fc Reduce usage of PCB IP version flag in UDP code. Maybe we can figure out a good way for dual-stack UDP when we manage to remove the flag (nearly) entirely from the code. 2016-02-20 20:54:58 +01:00
Axel Lin
c2a74b767b udp_bind: Omit checking for the same port if no port specified
No port specified means to use a random port.
udp_new_port() returns a new (free) local UDP port number on success.
So in this case we don't need iterating all lists to test if the port
number is used, udp_new_port() alreay ensures the port is not used.

Move the code checking for double bind and rebind of the same pcb earlier,
as this checking is necessary in all cases.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
2016-01-13 09:05:36 +01:00
Axel Lin
156ad0dbf5 udp_bind: Fix the logic to check both pcbs have REUSEADDR set
The code for #if SO_REUSE case does not match the comment.
By default, we don't allow to bind to a port that any other udp
PCB is already bound to, unless *all* PCBs with that port have tha
REUSEADDR flag set.

Which means we want to omit checking for the same port if both pcbs
have REUSEADDR set. Fix the logic accordingly.

Fixes: d0348e0c60 ("task #6995: Implement SO_REUSEADDR (correctly)")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
2016-01-11 12:19:13 +01:00
Axel Lin
708beb4874 udp_bind: Allocate a random port earlier to correctly detect port conflict
Current code does not correctly detect port conflict if no port specified
because it checks ipcb->local_port == port before udp_new_port().
Fix it by allocating a random port earlier.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
2016-01-09 10:14:09 +01:00
Axel Lin
21b9b5e741 Slightly improve raw_remove()/udp_remove() implementation
There should be no duplicate pcb in raw_pcbs/udp_pcbs list.
So the implementation of raw_remove()/udp_remove() can break from the for
loop once the target pcb is found and removed from the list.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
2015-11-19 07:21:00 +01:00
Dirk Ziegelmeier
6203737093 Rename snmp_mib2.h to snmp.h so source compatibility for user netif implementations is preserved 2015-11-12 21:25:42 +01:00
goldsimon
b401f42520 minor: fixed coding style (lwip style) 2015-10-07 10:03:12 +02:00
sg
2b971400fa minor: coding style 2015-10-06 21:57:40 +02:00
sg
490581a0eb minor/coding style: removed spaces before line ending 2015-10-06 21:08:28 +02:00
goldsimon
bc30899168 fixed compiler warnings where passing variable instance to ip_addr_isany 2015-09-28 07:56:52 +02:00
goldsimon
b0917d987a Cleaned up using struct netif.ip_addr by creating API functions for it 2015-09-24 14:57:16 +02:00
goldsimon
99d2e5233d struct udp_pcb.multicast_ip must be an ip_addr_t, too, to completely avoid temporary storage 2015-09-24 14:55:55 +02:00
goldsimon
c71723101a Removed ip_2_ip4/6_c const macros again now that ip_2_ip4/6 macros keep the original const'ness 2015-09-24 14:38:52 +02:00
goldsimon
262a641396 eliminate temporary storage when using netif addresses for ip_addr_t* now that they have the correct type (ATTENTION: ip6_select_source_address() and ip4_netif_get_local_ip() now return ip_addr_t*!) 2015-09-24 14:34:24 +02:00