This patch adds support of SO_KEEPALIVE flag and TCP related options to bpf_setsockopt() routine. This is helpful if we want to enable or tune TCP keepalive for applications which don't do it in the userspace code. v3: - update kernel-doc in uapi (Nikita Vetoshkin <nekto0n@yandex-team.ru>) v4: - update kernel-doc in tools too (Alexei Starovoitov) - add test to selftests (Alexei Starovoitov)
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| @@ -1621,10 +1621,13 @@ union bpf_attr { · 1620 unmodified lines | |||
| 1621 | * | 1621 | * |
| 1622 | * * **SOL_SOCKET**, which supports the following *optname*\ s: | 1622 | * * **SOL_SOCKET**, which supports the following *optname*\ s: |
| 1623 | * **SO_RCVBUF**, **SO_SNDBUF**, **SO_MAX_PACING_RATE**, | 1623 | * **SO_RCVBUF**, **SO_SNDBUF**, **SO_MAX_PACING_RATE**, |
| 1624 | * **SO_PRIORITY**, **SO_RCVLOWAT**, **SO_MARK**. | 1624 | * **SO_PRIORITY**, **SO_RCVLOWAT**, **SO_MARK**, |
| 1625 | * **SO_BINDTODEVICE**, **SO_KEEPALIVE**. | ||
| 1625 | * * **IPPROTO_TCP**, which supports the following *optname*\ s: | 1626 | * * **IPPROTO_TCP**, which supports the following *optname*\ s: |
| 1626 | * **TCP_CONGESTION**, **TCP_BPF_IW**, | 1627 | * **TCP_CONGESTION**, **TCP_BPF_IW**, |
| 1627 | * **TCP_BPF_SNDCWND_CLAMP**. | 1628 | * **TCP_BPF_SNDCWND_CLAMP**, **TCP_SAVE_SYN**, |
| 1629 | * **TCP_KEEPIDLE**, **TCP_KEEPINTVL**, **TCP_KEEPCNT**, | ||
| 1630 | * **TCP_SYNCNT**, **TCP_USER_TIMEOUT**. | ||
| 1628 | * * **IPPROTO_IP**, which supports *optname* **IP_TOS**. | 1631 | * * **IPPROTO_IP**, which supports *optname* **IP_TOS**. |
| 1629 | * * **IPPROTO_IPV6**, which supports *optname* **IPV6_TCLASS**. | 1632 | * * **IPPROTO_IPV6**, which supports *optname* **IPV6_TCLASS**. |
| 1630 | * Return | 1633 | * Return |