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804 Commits
Author SHA1 Message Date
Abhik Roy 6625eb9e44 docs(lwip): document LWIP_DNS_MAX_HOST_IP range and addr_cnt usage 
The DNS buffer overflow fix (esp-lwip@6233a1561) is already included in
release/v5.4 via 882843dbf8. This commit only adds Kconfig documentation
for the DNS_MAX_HOST_IP range and addr_cnt API contract.
 2026-07-31 21:21:50 +10:00
David Cermak 882843dbf8 fix(lwip): tcp/ooseq: do not accept empty fin seg (+ other fixes) 
* Update submodule: git log --oneline fd432e4e..c6f2f878
  - test(lwip): add DHCP MTU validation unit test (espressif/esp-lwip@c6f2f878e)
  - ppp: fix potential oob read in VJ decompression (espressif/esp-lwip@2ff439e61)
  - ip6-frag: Fix incorrect memcpy size to the actual struct (espressif/esp-lwip@91ad363ba)
  - tcp/ooseq: do not accept empty fin seg (espressif/esp-lwip@fe4fb18c1)
  - Address review comments (espressif/esp-lwip@9d2d80412)
  - nd6: add static neighbor cache entry support (espressif/esp-lwip@a05a5cf3b)
  - dns: add addr_cnt to DNS resolution to fix multi-IP buffer overflow (espressif/esp-lwip@6233a1561)
  - ci: Add jira sync github workflows (espressif/esp-lwip@a4e2409d0)
  - feat(lwip): migrate to to PSA API interface (espressif/esp-lwip@20f8b0739)
  - test: Fix multiple defs of util vars (espressif/esp-lwip@e9b8482e7)
  - ci: Add support for building tests/apps with both gcc and clang (espressif/esp-lwip@2a14051bf)
  - try to fix unit test compiling with clang (espressif/esp-lwip@6933a63cb)
  - apps/snmp: Remove @retval tags on void methods (espressif/esp-lwip@b6209dcf8)
  - snmp: Mention struct field removal in UPGRADING (espressif/esp-lwip@6659cf1f2)
  - snmp: remove unused prev field from snmp_varbind (espressif/esp-lwip@f32188001)
  - snmp: remove handling of varbind->prev because it is never used (espressif/esp-lwip@46660d5cf)
  - snmp: fix dangling pointer in snmp_traps (espressif/esp-lwip@0e3e97f8d)
 2026-07-14 09:25:40 +02:00
David Cermak 8c78bd3535 fix(lwip): Adds nullchecks after DHCP server alloc'd pools 2026-07-09 16:09:14 +02:00
David Cermak 4e59b2eacb fix(lwip): reject invalid DHCP MTU option values 
Validate MTU from DHCP option 26 against RFC 2132 minimum (68 bytes)
before applying to netif->mtu, preventing rogue DHCP servers from
setting MTU to 0 or other dangerously low values that cause integer
wraparound in IPv4 fragmentation.
 2026-07-09 16:09:13 +02:00
wangtao@espressif.com ba19403b31 feat(lwip): dhcp server add support for dhcp inform 2026-05-25 21:07:57 +08:00
David Cermak aecedc1f10 fix(lwip): Fix DHCP server potentially incomplete pbuf copy 
handle_dhcp: use pbuf_copy_partial for safe chain traversal

The manual two-segment copy loop was replaced with a single call
to pbuf_copy_partial(p, p_dhcps_msg, tlen, 0), which correctly
walks the entire pbuf chain regardless of segmentation.
A return-value check rejects truncated copies.
 2026-05-07 09:55:20 +02:00
David Cermak 711fa7400d fix(lwip): Trim to max packet size in dhcp server 2026-05-07 07:34:38 +02:00
David Cermak 2bf4dd1200 fix(lwip): Fix DHCP servver OOB read issue 2026-04-28 17:04:55 +02:00
David Cermak 83e7aa11b0 fix(lwip): Make lwip alloc/free consistend in port layer 
Merges https://github.com/espressif/esp-idf/pull/11534
 2026-04-21 08:57:33 +02:00
Evgeny Torbin f7395255da test: format all test scripts 2026-03-11 07:34:34 +01:00
Mahavir Jain c2390aa3c4 fix(lwip): allow task stack from SPIRAM except for ESP32 ECO2 and below 
Closes https://github.com/espressif/esp-idf/issues/17827
 2025-11-13 09:41:58 +05:30
Jiang Jiang Jian 1021335ed9 Merge branch 'fix/fix_dhcp_server_recv_decline_issue_v54' into 'release/v5.4' 
fix(lwip): fix dhcp arp check issue

See merge request espressif/esp-idf!41771
 2025-09-19 01:41:29 +08:00
chendejin b567f95ea4 lwip: Add IPv6 improvements, NAPT fixes, and ND6 RIO support (v5.4) 
[LWIP submodule changes]: git log --oneline fa4dffdf..fd432e4e
nd6: add a unit test case for nd6 rio support (esp-lwip@fd432e4e)
nd6: support route information option in router advertisement (esp-lwip@1adc49f9)
ip6: add some unit test cases for ip6 forwarding (esp-lwip@ebabd6d7)
ip6: clone the buf when forwarding a PBUF_REF packet (esp-lwip@adcd330e)
napt: Fixed NULL pointer dereference in ip_napt_enable (esp-lwip@0a44efa1)
napt: Added unit tests for napt (esp-lwip@865d7d0c)
 2025-09-15 17:06:43 +02:00
wangtao@espressif.com a82bc2a4f7 fix(lwip): fix dhcp arp check issue 2025-09-09 16:23:48 +08:00
Abhik Roy ee34949087 fix(dhcps): Fixed DNS server handling for previous breaking changes 2025-07-28 14:34:27 +08:00
Lorenzo Consolaro 418ed7a575 feat(dhcps): Support for multiple DNS servers 2025-07-28 14:34:27 +08:00
David Cermak 7f07eba674 fix(lwip): Fix appending DHCP option with HW-ID 2025-06-30 12:13:56 +02:00
wanckl ea03622621 ci(esp32c61): remove c61 support from readme on 5.4 2025-06-17 15:09:40 +08:00
Tomáš Rohlínek 0a9105a406 feat(network/lwip): Add checks for maximum socket count 2025-05-26 19:23:31 +08:00
wuzhenghui 33aca83c63 change(ci): remove esp32c5 from readme since esp32c5 skipped CI build 2025-04-25 17:13:27 +08:00
wangtao@espressif.com c8e36049b1 fix(dhcp): fix dhcp server recv decline issue 2025-04-24 10:29:26 +08:00
David Cermak e7a0a93a40 fix(lwip): Fix potential data-race in ping tcpip callback 
Need to use tcpip_api_call() instead of tcpip_callback(), since the
former waits for the tcpip task to complete and thus prevents potential
data races with subsequent TCP/IP tasks.
 2025-01-29 23:34:18 +08:00
Abhik Roy eed1e02fdc test(lwip): Added LWIP_DHCP_RESTORE_LAST_IP config in lwip test apps 
Enabled CONFIG_LWIP_DHCP_RESTORE_LAST_IP configuration to compile and
test the DHCP last IP restore functionality in CI tests.
 2025-01-24 21:35:12 +11:00
Abhik Roy 37657757ba fix(lwip): Fixed compilation issue with LWIP_DHCP_RESTORE_LAST_IP 
Closes https://github.com/espressif/esp-idf/issues/14582
 2025-01-24 21:35:12 +11:00
David Cermak d715abb8fd fix(lwip): Fix ping session calling thread unsafe API 
Closes https://github.com/espressif/esp-idf/issues/14982
 2025-01-14 11:25:31 +01:00
David Cermak 1816632e65 fix(lwip): Fix AUTOIP new address after rate limit 
submodule update: git log --oneline a587d929..fa4dffdf
  - autoip: Choose next address after rate limit (espressif/esp-lwip@fa4dffdfa)
 2024-12-20 08:41:17 +01:00
David Cermak d85744af43 fix(lwip): Fix DHCP lease overlow using u32 type 2024-11-28 10:06:14 +01:00
David Cermak 7d9970590a fix(lwip): Limit active TCP PCBs and recycle them faster 
Update submodule: git log --oneline c816f0ee..a587d929
  - test: Add tcp-pcb recycle test (espressif/esp-lwip@a587d929)
  - tcp: Apply faster PCB recycling in FIN_WAIT_1 or FIN_WAIT_2 state (espressif/esp-lwip@3bfc85d2)
  - test: Add tcp alloc limitation test (espressif/esp-lwip@0c9c39a9)
  - memp: Employ TCP-PCB allocation limit if libc malloc used (espressif/esp-lwip@9cb96ac1)
 2024-11-22 14:45:36 +01:00
David Cermak 2822cc671a fix(lwip): Fix ping_v6 receiving to accept only echo replies 
This fixes a bug where we ping our own IP and the request itself
bounces back to the raw receive function and is incorrectly treated as
reply. (this bug was discovered when fixing ICMPv6 pings with incorrect
checksums, while the ping request was dropped in icmpv6.c due to wrong
checksum, but was also fed to raw layers where it was treated as
"correct" response, so the PINGv6 to ourselves still worked)
 2024-11-21 11:24:46 +01:00
David Cermak f75e399139 fix(lwip): Fix IP6 raw socket checksum in IPv6-only configuration 
* Update submodule: git log --oneline f150e232..c816f0ee
  - sockets: Make IPv6 only netconn type IPv6 aware (espressif/esp-lwip@c816f0ee)
  - test: Make test application scalable (espressif/esp-lwip@3ec12c3b)
  - dns: Handle active DNS entries before clearing cache (espressif/esp-lwip@b15cd2de)
 2024-11-21 11:24:30 +01:00
wangtao@espressif.com e65acc9510 feat(wifi): fix SPIRAM_IGNORE_NOTFOUND releated config 2024-10-24 19:49:57 +08:00
David Cermak 649816d9a1 fix(lwip/dhcps): Fallback DNS option to DHCP server's IP by default 
Adds backward compatibity option CONFIG_LWIP_DHCPS_ADD_DNS, which
prevents breaking changes.
This option should be removed in IDF v6.0

Merges https://github.com/espressif/esp-idf/pull/14132
 2024-10-07 21:07:57 +11:00
Showier Drastic 484a2d6d6c feat(lwip/apps): only hand out DNS in DHCP if explicitly specified 2024-10-07 21:07:01 +11:00
David Čermák 82a29b7d21 Merge branch 'fix/lwip_drop_ipv6_if_no_ll' into 'master' 
fix(lwip): Add default IPv6 input filter to drop traffic if ipv6 not assigned

Closes IDF-10472

See merge request espressif/esp-idf!32165
 2024-09-20 23:33:49 +08:00
David Cermak 98fdb1a97f fix(lwip): Add default IPv6 input filter to drop traffic if ipv6 not assigned 
* Makes LWIP_HOOK_IP6_INPUT default to LWIP_HOOK_IP6_INPUT_DEFAULT
* Updated the stub hook implementation to actually filter out all IPv6
packets if the input netif has no link local address.
 2024-09-20 10:36:43 +02:00
Shu Chen 4d4062a2b8 Merge branch 'feat/thread_dns_ext_resolve' into 'master' 
feat(openthread): Replace netconn external resolve hook with dns external hook

See merge request espressif/esp-idf!33344
 2024-09-13 15:45:25 +08:00
David Cermak 015ab1d18f fix(lwip): Fix linker/fr symbol for tcp_output_control segment 
In lwip-2.1.3 tcp_output_control_segment() is used to send RST, empty
ACK, keepalive or zero window probe.
In lwip-2.2.0 this works the same, but the function is used when we
don't know the interface to send to (and if used it finds it and calls)
tcp_output_control_segment_netif().
When `LWIP_EXTRA_IRAM_OPTIMIZATION=y` we would ideally move both
variants to IRAM, but the pcb variant (tcp_output_control_segment) could
be optimized away on some targets and toolchain versions.
(esp32c6 with riscv32-esp-elf/esp-14.2.0_20240906)
It should be sufficient to keep tcp_output_control_segment_netif in IRAM
for most common performance usecases.
 2024-09-12 09:52:13 +02:00
David Cermak 4d046b3732 feat(lwip): Reference official lwip-2.2.0-esp 2024-09-11 16:48:07 +02:00
David Cermak c098388a2f fix(lwip): Use ACD light module for simple DHCP-ARP check 2024-09-11 16:48:07 +02:00
David Cermak 22f213b518 feat(lwip): Add support for lwip 2.2.0-esp release 2024-09-11 16:48:00 +02:00
WanqQixiang f62628d334 feat(openthread): Replace netconn external resolve hook with dns external hook 2024-09-11 09:59:06 +08:00
WanqQixiang 9c4ae855bb feat(lwip): Add DNS external hook 2024-09-05 10:09:15 +08:00
Shu Chen 51cd6e9291 Merge branch 'feat/support_config_to_reply_ns_without_ll_opt' into 'master' 
feat(lwip): reply the NS without LL opt

See merge request espressif/esp-idf!32671
 2024-08-28 15:19:39 +08:00
zwx fc9175d494 feat(lwip): reply the NS without LL opt 2024-08-27 18:10:23 +08:00
zwx 9c9ae155ba feat(lwip): add a config to set the size of ND6 table cache 2024-08-26 17:48:51 +08:00
Abhik Roy 4873a94b01 Merge branch 'example/ping_invalid_ip6_fix' into 'master' 
fix(example): Fixed updating recv addr for invalid packets

Closes IDFGH-13264

See merge request espressif/esp-idf!32275
 2024-08-16 17:01:37 +08:00
Abhik Roy 322f22d169 fix(lwip): Fixed incorrect handling of 0.0.0.0 in dns 2024-08-15 19:00:47 +10:00
Abhik Roy 53ba6e97cd fix(example): Fixed updating recv addr for invalid packets for ping 
Closes https://github.com/espressif/esp-idf/issues/14197
 2024-08-13 21:51:58 +10:00
igor.udot 8691672f03 ci: replace pytest function 2024-07-23 14:07:31 +08:00
David Cermak 48b3e4f76f feat(lwip): Add support for disabling IPv4 in PPP networks 2024-07-17 21:41:09 +08:00