summaryrefslogtreecommitdiff
path: root/lib/lwip/u-boot
AgeCommit message (Collapse)Author
2026-03-13net: lwip: scale buffer pool size with TFTP block sizePranav Tilak
TFTP transfers fail when tftpblocksize is set to 8192 or larger due to insufficient buffer resources for IP fragment reassembly. Calculate PBUF_POOL_SIZE and IP_REASS_MAX_PBUFS dynamically based on CONFIG_TFTP_BLOCKSIZE using IP fragmentation boundaries (1480 usable bytes per fragment at 1500 MTU). The pool size includes headroom for TX, ARP, and protocol overhead, while ensuring PBUF_POOL_SIZE remains greater than IP_REASS_MAX_PBUFS as required by lwIP. Signed-off-by: Pranav Tilak <[email protected]>
2026-03-13net: lwip: Fix PBUF_POOL_BUFSIZE when PROT_TCP_LWIP is disabledJonas Karlman
The PBUF_POOL_BUFSIZE ends up being only 592 bytes, instead of 1514, when PROT_TCP_LWIP Kconfig option is disabled. This results in a full Ethernet frame requiring three PBUFs instead of just one. This happens because the PBUF_POOL_BUFSIZE constant depends on the value of a TCP_MSS constant, something that defaults to 536 when PROT_TCP_LWIP is disabled. PBUF_POOL_BUFSIZE = LWIP_MEM_ALIGN_SIZE(TCP_MSS + 40 + PBUF_LINK_HLEN) Ensure that a full Ethernet frame fits inside a single PBUF by moving the define of TCP_MSS outside the PROT_TCP_LWIP ifdef block. Fixes: 1c41a7afaa15 ("net: lwip: build lwIP") Acked-by: Jerome Forissier <[email protected]> Signed-off-by: Jonas Karlman <[email protected]>
2025-09-30net: lwip: enable debug traces for SNTP when CONFIG_LWIP_DEBUG is setJerome Forissier
Now that SNTP is supported, enable SNTP debug traces when LWIP_DEBUG is enabled. In particular, this allows to see which NTP servers are received during DHCP. Signed-off-by: Jerome Forissier <[email protected]>
2025-08-18net: lwip: add Kconfig option to show ICMP unreachable errorsJerome Forissier
Add Kconfig symbol LWIP_ICMP_SHOW_UNREACH which, when enabled, prints a message to the console upon reception of ICMP unreachable messages. For example: $ make qemu_arm64_lwip_defconfig $ qemu-system-aarch64 -M virt -cpu max -nographic -bios u-boot.bin [...] => dhcp DHCP client bound to address 10.0.2.15 (0 ms) => tftp 192.168.0.100:69:Image Using virtio-net#32 device TFTP from server 192.168.0.100; our IP address is 10.0.2.15 Filename 'Image'. Load address: 0x40200000 Loading: ICMP destination unreachable (host unreachable) from 192.168.0.16 Timeout! => tftp 192.168.0.16:69:Image Using virtio-net#32 device TFTP from server 192.168.0.16; our IP address is 10.0.2.15 Filename 'Image'. Load address: 0x40200000 Loading: ICMP destination unreachable (port unreachable) from 192.168.0.16 Timeout! => Submitted upstream as https://github.com/lwip-tcpip/lwip/pull/73. Signed-off-by: Jerome Forissier <[email protected]>
2025-08-01lwip: provide a sntp_format_time() functionJerome Forissier
Provide a trivial implementation of sntp_format_time() to fix a build error when CONFIG_LWIP_DEBUG=y: lib/lwip/lwip/src/apps/sntp/sntp.c: In function ‘sntp_format_time’: lib/lwip/lwip/src/apps/sntp/sntp.c:283:10: error: implicit declaration of function ‘ctime’ [-Werror=implicit-function-declaration] 283 | return ctime(&ut); | ^~~~~ Signed-off-by: Jerome Forissier <[email protected]>
2025-07-08lwip: add sntp commandJerome Forissier
Implement the sntp command when NET_LWIP=y. Signed-off-by: Jerome Forissier <[email protected]>
2025-07-08net: lwip: enable IP_FRAG and IP_REASSEMBLYTim Harvey
Enable IP_FRAG and IP_REASSEMBLY to allow packets larger than MTU. Signed-off-by: Tim Harvey <[email protected]> Reviewed-by: Jerome Forissier <[email protected]> Acked-by: Heinrich Schuchardt <[email protected]>
2025-02-12net: use strnstr() for lwip_strnstr()Heinrich Schuchardt
Using strstr() instead of strnstr() creates a security concern. Fixes: 1c41a7afaa15 ("net: lwip: build lwIP") Signed-off-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Jerome Forissier <[email protected]> Reviewed-by: Ilias Apalodimas <[email protected]> Signed-off-by: Jerome Forissier <[email protected]>
2024-12-06net: disable MBEDTLS in SPLHeinrich Schuchardt
Building SPL fails with MBEDTLS enabled. Currently we don't need it there. Signed-off-by: Heinrich Schuchardt <[email protected]> Acked-by: Jerome Forissier <[email protected]>
2024-11-14lwip: fix code style issuesJerome Forissier
Fix various code style issues in the lwIP code. Reported-by: Tom Rini <[email protected]> Signed-off-by: Jerome Forissier <[email protected]> Acked-by: Ilias Apalodimas <[email protected]>
2024-11-12net: lwip: Update lwIP for mbedTLS > 3.0 support and enable httpsJavier Tia
The current code support mbedTLS 2.28. Since we are using a newer version in U-Boot, update the necessary accessors and the lwIP codebase to work with mbedTLS 3.6.0. It's worth noting that the patches are already sent to lwIP [0] While at it enable LWIP_ALTCP_TLS and enable TLS support in lwIP [0] https://github.com/lwip-tcpip/lwip/pull/47 Signed-off-by: Javier Tia <[email protected]> Acked-by: Jerome Forissier <[email protected]> Signed-off-by: Ilias Apalodimas <[email protected]>
2024-10-16net: lwip: build lwIPJerome Forissier
Build the lwIP library when NET_LWIP is enabled. The following files are adaptation layers written specially for U-Boot: lib/lwip/u-boot/arch/cc.h lib/lwip/u-boot/arch/sys_arch.h (empty) lib/lwip/u-boot/limits.h (empty) lib/lwip/u-boot/lwipopts.h They were initially contributed by Maxim in a previous RFC patch series. The lwIP stack needs to be added as a Git subtree with the following command: $ git subtree add --squash --prefix lib/lwip/lwip \ https://github.com/lwip-tcpip/lwip.git STABLE-2_2_0_RELEASE Signed-off-by: Jerome Forissier <[email protected]> Co-developed-by: Maxim Uvarov <[email protected]> Cc: Maxim Uvarov <[email protected]> Acked-by: Ilias Apalodimas <[email protected]>
generated by cgit v1.2.3 (git 2.25.1) at 2026-04-13 05:07:26 +0000