In order to access DHCP messages from clients in different states
and possibly to implement custom handlers that alter the current state,
e.g. reject a client with specific hostname using NAK.
* Extended storage for staipassigned events to pass client's MAC address.
* Added client's MAC to dhcp server callback
* Posting the staipassigned events with clients IP and MAC address
0 is a valid socket description, so should be accepted after we create a
socket. In IDF, though, it's just a theoretical issue, as customers have
to configure:
* FD_SETSIZE = CONFIG_LWIP_MAX_SOCKETS (from makefiles)
* CONFIG_VFS_SUPPORT_IO = n (from menuconfig)
(this configuration is currently broken, but if we adjust the IDF here
and there we could reproduce the issue)
When client's request refused by sending NAK, its record still resided
in the linked list of pooled addresses. It is okay from the spec
perspective (RFC2131.p16: Server MAY mark the offered address
unavailable), but would consume some memory if the client didn't retry.
Closes https://github.com/espressif/esp-idf/issues/6410
1) kill_oldest_dhcps_pool() is only called when list has at least two members (assured with kconfig value limit), added assertion to ensure this function is used only when prerequisities are met
2) use after free reported in two places, since the analyzer checks also the scenario when the linked list has loops, added ignore tags
Before LwIP was moved into a submodule, sntp and esp_ping were
available as the following includes:
#include "apps/sntp/sntp.h"
#include "esp_ping.h"
This commit makes header files available at the old location, and adds
a deprecation warning for sntp.h.
Closes https://github.com/espressif/esp-idf/issues/2392
Currently when MAX_STATION limit in DHCP config is set to N, dhcp server
issues only N-1 IP addresses. This is problematic from customer
perspective if both SoftAP MAX_STATION and DHCP MAX_STATION limit is set
to same value. With this change DHCP server can issue N addresses that
is inline with the set limit.
Closes TW<20556>
1. "lwip_socket" should close by "lwip_close_r" other than "lwip_close"
2. for generally compatible, fix all lwip interface to normally socket interface
3. call vTaskDelete when new socket failed in case of task crash
close #https://github.com/espressif/esp32-at/issues/58
Do some refactor to socket ping:
1. Add ping_deinit to kill ping thread
2. Apply configuration set by esp_ping_set_target to socket ping
3. Limit only one ping thread
get IP address after connecting to the softap.
Now the default netif is station in station+softap mode. The UDP pcb of
DHCP server is binded to IP 0.0.0.0. When other device connects to softap, the
DHCP offer will be sent by softap.But because the destination IP of DHCP offer
is broadcast IP and the source IP of it is 0.0.0.0, it will be sent from default
netif, that is station interface. Other device can not receive the DHCP offer
sent from station interface. As a result, other device can not get IP address.
The resolution is that bind UDP pcb to the IP address of softap. So, the source
IP of DHCP offer is that of softap. DHCP offer can be sent from softap interface
by source IP route method.
