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After DHCPRELEASE, DHCP client sends a SIOCSIFADDR to set the
interface address to 0.0.0.0. This is not accepted by our IP
validator `ipv4config_is_valid()`. I think this use case is legit
so this commit makes the translator accept 0.0.0.0 as a valid address.
This assumes that a client trying to set IP to 0.0.0.0 is in fact trying
to remove the IP from the interface. Then it sets all fields to NONE, in
order to pass the validation.
* lwip/lwip-util.c: `configure_device`: Add the exception for 0.0.0.0
and 255.255.255.255.
Message-ID: <20250729155244.7976-2-jlledom@mailfence.com>
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The translator received a null `netif_list` during initialization, this
caused a few bugs.
When started without parameters, the translator didn't add any new
interface to `netif_list`, and that broke any subsequent fsysopts over
the translator, as the stack was being initialized again instead of
being reconfigured.
DHCP was broken because the translator is usually installed without
parameters, which are supposed to be added by the DHCP client through
fsysopts.
The absence of an allocated `netif_list` also prevented configuring a
loopback interface.
After these changes, starting the translator always allocates one
interface and configures it as loopback.
Message-ID: <20231202101401.11542-2-jlledom@mailfence.com>
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Also add -Werror=old-style-definition to enforce new code.
Message-Id: <ZBZ+8xf7GHy2RT/h@jupiter.tail36e24.ts.net>
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* lwip/lwip-util.c:
* EINVAL was never being returned.
* Return error code for tcpip_callback() as errno.
Message-Id: <20190511093202.9763-2-jlledom@member.fsf.org>
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* lwip/lwip-util.c:
* Check for errors when calling update_if()
inside a thread-safe context.
Message-Id: <20190502095502.10926-4-jlledom@member.fsf.org>
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Use tcpip_callback() to reconfigure interfaces in a thread-safe
context instead.
* lwip/lwip-util.c:
* Replace all netifapi calls by their non-netifapi versions.
* update_ifs() is called through tcpip_callback().
* lwip/options.c:
* Call init_fs() through tcpip_callback().
* lwip/port/netif/ifcommon.c:
* Replace all netifapi calls by their non-netifapi versions.
Message-Id: <20190331175541.7095-5-jlledom@member.fsf.org>
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* lwip/lwip-util.c: init_ifs():
* Check for the value of ifc instead of in->dev_name
* lwip/port/netif/ifcommon.c:
* if_init(), if_terminate(): Check for null on ifc instead of netif
Message-Id: <20190331175541.7095-2-jlledom@member.fsf.org>
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* lwip/iioctl-ops.c: Include <lwip/inet.h>.
* lwip/lwip-util.c: Likewise.
* lwip/pfinet-ops.c: Include <lwip/sockets.h> and <lwip/inet.h>.
* lwip/port/netif/hurdethif.c: Likewise.
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* Makefile (prog-subdirs): Add lwip.
* config.make.in (HAVE_LIBLWIP, liblwip_CFLAGS, liblwip_LIBS): Define
variables.
* configure.ac: Check for liblwip.
* lwip/: New directory.
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