alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-08 12:10:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

lwip: Add config for DHCP client id; Fix DNS server idx assert issue

Browse Source 
This commit brings two esp-lwip fixes to IDF:

1) Add configuration to disable DHCP client identification
2195f7416f
This config could be used to disable option 61 in DHCP packets, so that
clients will be identified by their  chaddr only.
(This is the lwip upstream original behaviour)

2) Fix server_idx increasing to DNS_MAX_SERVERS and trigger the LWIP_ASSERT
5a567d52f7
When lwip doesn't have DNS server and resolve a domain address, the server_idx
will increase to DNS_MAX_SERVERS, which will trigger the LWIP_ASSERT and make device crash.

Closes https://github.com/espressif/esp-idf/issues/6878
This commit is contained in:
David Cermak
2021-05-05 09:14:34 +02:00
parent 58490418ad
commit 49022e99f5
3 changed files with 14 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
components/lwip/port/esp32/include/lwipopts.h
View File

@@ -249,6 +249,10 @@
*/
#define DHCP_DOES_ARP_CHECK CONFIG_LWIP_DHCP_DOES_ARP_CHECK
/**
* LWIP_DHCP_DISABLE_CLIENT_ID==1: Do not add option 61 (client-id) to DHCP packets
*/
#define ESP_DHCP_DISABLE_CLIENT_ID CONFIG_LWIP_DHCP_DISABLE_CLIENT_ID
/**
* CONFIG_LWIP_DHCP_RESTORE_LAST_IP==1: Last valid IP address obtained from DHCP server