2025.11 F-Stack v1.25(LTS)

1. F-Stack lib:

• Support CI. @shanakaprageeth
• set the IP-type flag for tx_csum_l4 offload. @zcjie1
• m_gethdr will call m_pkthdr_init also, so there is no need to initialize it again. @liujinhui-job
• add tcp/udp loopback support, we can send packet through lo dev. @liujinhui-job
• fix dev_info.hash_key_size is 0 init_port_start failed. @liujinhui-job
• Add support for custom install prefix. @Clcanny
• Disable RSS if hardware does not support it. @Clcanny
• add __recv_chk/__read_chk/__recvfrom_chk. @liujinhui-job
• Change ff config pci whitelist to allow. @liujinhui-job
• Add inner IP and port-based flow steering capabilities for the IPIP protocol.(Authors: Zhiwen Wang @hirowang1, Huiqin Zhang).
• ff_ipfw support ip_fw_pmod and tcpmod for tcp-setmss.
• f-stack supports the socket options IP_TRANSPARENT and IPV6_TRANSPARENT. Nginx does not require additional checks, and the translation for IPV6_PKTINFO has been added. @wenchengji159357
• Modify usleep to rte_delay_us_sleep.
• Remove some useless code of kni.
• ff_traffic support rx_dropped and tx_dropped.