To fix the build after ppp_output_cb started taking it as const in
commit b2d1fc119d.
Fixes this failure:
../contrib/examples/ppp/pppos_example.c: In function ‘ppp_output_cb’:
../contrib/examples/ppp/pppos_example.c:163:29: error: cast discards ‘const’ qualifier from pointer target type [-Werror=cast-qual]
return sio_write(ppp_sio, (u8_t*)data, len);
^
Authentication timer might still be running when entering network phase
for any necessary rechallenge, mostly for PPP server support.
Update the detailed analysis of simultaneously running PPP timers
taking into account the authentication timer that might still be
running and chose to increase the base number to 2 instead of
adding more unnecessary complexity.
There is no good reason why this function should take a non-const
pointer, as the output callback should never modify what lwIP gives it.
While changing that also switch to a more generic `void*` instead of
"byte".
There is no good reason why this function should take a non-const
pointer. While changing that also switch to a more generic `void*`
instead of "byte".
There is no good reason why this function should take a non-const
pointer. While changing that also switch to a more generic `void*`
instead of "byte".
PPP_MRU is now free to be used for what it should have been. Now using
it at PPP init stage to set the wanted MRU value, triggering a MRU
negotiation at the LCP phase.
I doubt anyone needs it anyway, but, well, at least it is fixed and the
MRU/MTU config mess is cleaned.
And while we are at it, better document PPP MRU config values.
RFC1661 mandates that default MRU value, that must be used prior
negotiation of MRU value and if MRU value is not negotiated later, must
be 1500.
That is, any PPP host must accept control frames of at least 1500 when
the PPP session start (there are no way to split them in multiples
frames anyway) and must use a value of 1500 if MRU is no negotiated
during LCP exchanges.
Therefore, having it configurable in ppp_opts is a mistake. It was wrong
and never worked because changing the value never triggered a MRU value
negotiation because it changed both the wanted MRU value and the RFC
default value to which the wanted value is compared to trigger a MRU
negotiation if values are not equal.
Those are private functions, using the netif_ prefix here is not really
nice, especially with functions named netif_set_mtu and netif_get_mtu
for obvious reasons.
Having it configurable does not really make sense anymore, we already
need PBUF_RAM in all transmit paths. There are no real reason to keep
allocating PPP response buffers from the PBUF_POOL which should be now
reserved for receive paths only.
We need PBUF_RAM for quite a while for PPP, e.g. through pbuf_coalesce
and for all PPP transmit paths. There are no real reason to keep
allocating packets from PBUF_POOL for PPP control packets transmit path
by default today.
If we fail to receive a full packet, for exemple if a memory allocation
fail for some reason, we currently do not wait for next packet flag
character and we start filling a new packet at next received byte. Then
we expect the checksum check to discard the packet.
The behavior seem to have been broken one or two decades ago when adding
support for PFC (Protocol-Field-Compression) and ACFC
(Address-and-Control-Field-Compression).
Rework to drop any character until we receive a flag character at init
and when we drop a packet before it is complete.
VJ support is known to be broken when built with some compiler
optimizations enabled, disabling it by default until someone needs it
and fixes it.
It was mostly used with dial-up modems, it is useless with PPPoE and
PPPoL2TP and is probably useless as well with cellular modems, so
disabling it by default makes sense anyway.
In theory, if provided username or password is over 0x80000000 byte long
(err...), casts to signed integer of strlen() return values is going to
return negative values breaking lengths checks.
Fix it by only using unsigned integer or size_t (guaranteed to be
unsigned) comparisons.
Generating docs for file src/incl/home/travis/build/lwip-tcpip/lwip/src/include/lwip/ip4_addr.h:151:s
error: unable to resolve reference to `ip4_addr_eq' for \ref command (warning treated as error, aborting now)
Like pbuf_copy, but can copy part of a pbuf to an offset in another.
pbuf_copy now uses this function internally.
Replace pbuf_take_at loop in icmp6 with pbuf_copy_partial_pbuf().
Fuzz tests need reproducible code, so we need an "unsafe" version of
LWIP_RAND() in this case...
Also, to reproduce fuzz tests cases from Linux on Windows,
LWIP_RAND_FOR_FUZZ_SIMULATE_GLIBC provides the first 20 random numbers that
glibc would have...
When we have multiple netifs where at least one has checksum offloading
capabilities, IP forwarding needs to set various checksum fields to 0
to prevent HW algorithms on calculating an invalid checksum.
-> set checksum fields of IP/UDP/TCP/ICMP to 0 in ip4_forward().
See bug #56288
Signed-off-by: Simon Goldschmidt <goldsimon@gmx.de>
This is just to keep the code clean and prevent using the "echo" header
where any ICMP header is meant.
Signed-off-by: Simon Goldschmidt <goldsimon@gmx.de>
Use 'PBUF_IP_HLEN+PBUF_TRANSPORT_HLEN' instead of '40' to calculate
PBUF_POOL_BUFSIZE (the size of each PBUF_POOL buffer) since the former
can be 60 when IPv6 is enabled.
See bug #56355
Signed-off-by: Simon Goldschmidt <goldsimon@gmx.de>
This converts all ppp_*() debug functions to ppp_*(()) macros that
ensure the code is left out by the linker if the corresponding debug
setting is disabled.
Downside is that many lines of code are touched, but since these
already differ to upstream PPP sources, I figured that's ok...
See bug #55199
Signed-off-by: Simon Goldschmidt <goldsimon@gmx.de>
