NuttX provides the UDP_BINDTODEVICE socket option. This is a UDP protocol-specific implementation of the semi-standard Linux SO_BINDTODEVICE socket option: "SO_BINDTODEVICE forces packets on the socket to only egress the bound interface, regardless of what the IP routing table would normally choose. Similarly only packets which ingress the bound interface will be received on the socket, packets from other interfaces will not be delivered to the socket." https://codingrelic.geekhold.com/2009/10/code-snippet-sobindtodevice.html
If CONFIG_NET_UDP_BINDTODEVICE is selected and a UDP socket is bound to the device, then unrecognized packets UDP packets must not be dropped, but must be forwarded along to the bound socket unconditionally.
It the typical case, this should have no impact. It does effect the applications that use DHCP and do select the UDP_BINDTODEVICE socket option.
This PR replace existing improper logic in the code and also the improper attempts to fix problems from PR #3601 and PR #3598. Those changes are improper because they expose DHCP appliction dependencies in the OS, breaking modularity and independence of the OS and application.
Tested with stm32f4discovery:netnsh with CONFIG_NET_UDP_BINDTODEVICE. A proper DHCP test setup is needed, however.
This adds a sensor driver for the hyt271, hyt221, and hyt939 sensor module from
vendor iST (Innovative Sensor Technology). This sensor type is connected via i2c
bus and allows the measurement of relative humidity and temperature.
Each driver instance supports two different character device for each type
(/dev/sensor/tempX and /dev/sensor/humiX).
This driver also supports changing the i2c address of one connected sensor on
the bus. This requires a callback to the platform-specific board logic which
must ensure a power-on reset.
Optional the driver allows setting up a read interval for fetching sensor data.
This is done by a worker thread and can be useful when watching several sensors
via poll() by the userspace application.
Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
Marco Krahl has submitted the ICLA and we can migrate the licenses
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
This change makes it so that the timeout is set as part of the SDIO_WAITENABLE call instead of the SDIO_EVENTWAIT call. By doing so, you eliminate all opportunity for a race condition.
stm32h7:sdmmc Check if busy ended early
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Add implementations of getopt_long() and getopt_long_only()
There could be impacts to getop() since that implementation is shared withe new getopts_long() and getops_long_only() implementation.
Tested using a modified version of sim:nsh
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Uros Platise has submitted the ICLA and we can migrate the licenses
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
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to Apache.
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Alan Carvalho de Assis has submitted the ICLA and we can migrate the licenses
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
getopt() in the FLAT build environment is not thread safe. This is because global variables that are process-specific in Unix are truly global in the FLAT build. Moving the getopt() variables into TLS resolves this issue.
No side-effects are expected other than to getopt()
Tested with sim:nsh
