The Linux LWIP port was using --wrap linker flags to intercept read,
write, close, fcntl and select, routing socket FDs (>= LWIP_SOCKET_OFFSET)
to lwip_*() functions. This conflicted with the dlsym(RTLD_NEXT)
cooperative syscall interposition used by the new FreeRTOS Linux
simulator.
Replace the --wrap approach with esp_vfs_register_fd_range(), matching
how LWIP already integrates with VFS on bare-metal ESP32 targets.
The cooperative read()/write() wrappers in vfs_coop_syscalls.c check
VFS first, so LWIP FDs are dispatched to lwip_read() etc. before the
cooperative fallback path is reached.
Currently, lwip's CMakeLists.txt might use an uninitialized srcs value
if CONFIG_LWIP_ENABLE is disabled. This means it could use a srcs value
set by another component, involving sources that are entirely
unrelated to the lwip component during registration. Perhaps we
should simply exit when CONFIG_LWIP_ENABLE is not enabled and avoid
registering the component altogether.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
linux/lwip: Wrap some IO posix functions
* to workaourd the FreeRTOS EINTR issue (when building without lwip)
* to correctly choose the sub-system based on fd (when building with
lwip) -- passing control to either linux/system or to lwip
This commit also addapts tapio-if to provide DHCP client by default and
configurable settings for static IP
The path for dhcp_server.c has changed from esp32/ to esp32xx/
This fixes the build when CONFIG_LWIP_DHCP_RESTORE_LAST_IP is enabled.
Signed-off-by: Sean Cross <sean@xobs.io>
Fix dependency tree so that lwip doesn't depend on any specific network
interface component.
Network interface drivers shall depend on esp_netif.
esp_netif shall depend on lwip (but not on any specific interface
driver) -- it optionally depends on vfs and esp_eth (need ethernet
header for L2/bridge mode)
This is a preparation for adding 6LoWPAN config options. We would
optionally add:
* "lwip/src/netif/lowpan6_common.c"
* "lwip/src/netif/lowpan6.c"
* "lwip/src/netif/lowpan6_ble.c"
But only if LWIP_LOWPAN6_SUPPORT is enabled in lwip menuconfig.
Merges https://github.com/espressif/esp-idf/pull/7436
Added lwIP hooks which could be optionally overwritten in the
application code. These three options are provided in Kconfig:
* NONE: No hook support
* DEFAULT: Default implementation is provided. If IDF doesn't
have a specific hook implementation, an empty stub is provided, which
could be overwritten by strong implementation in application code.
* CUSTOM: Hooks are declared only to be implemented in application code.
Merges https://github.com/espressif/esp-idf/pull/6034
* If CONFIG_VFS_SUPPORT_IO=y, keep everything as it is now
* If CONFIG_VFS_SUPPORT_IO=n, defined syscalls which LwIP can
implement, such as read/write/close
* Make LWIP-only select implementation dependent on
CONFIG_VFS_SUPPORT_SELECT, deprecate CONFIG_LWIP_USE_ONLY_LWIP_SELECT
Alexey Lapshin
Guillaume Souchere
David Cermak
Frantisek Hrbata
Abhik Roy
Jakob Hasse
Sean Cross
Ivan Grokhotkov
Anton Maklakov
Ondrej Kosta
marcusbirkin
liuhan
Jiacheng Guo
Paweł pidpawel Kozubal
Mahavir Jain
Angus Gratton
Thomas Schaub
suda-morris