From: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx> Date: Thu, 13 Feb 2025 11:25:01 +0900 > > diff --git a/net/core/filter.c b/net/core/filter.c > > index 2ec162dd83c4..a21a147e0a86 100644 > > --- a/net/core/filter.c > > +++ b/net/core/filter.c > > @@ -5303,6 +5303,12 @@ static int bpf_sol_tcp_setsockopt(struct sock *sk, int optname, > > return -EINVAL; > > tp->bpf_sock_ops_cb_flags = val; > > break; > > + case TCP_BPF_RTO_MAX: > > + if (val > TCP_RTO_MAX_SEC * MSEC_PER_SEC || > > + val < TCP_RTO_MAX_MIN_SEC * MSEC_PER_SEC) > > + return -EINVAL; > > + inet_csk(sk)->icsk_rto_max = msecs_to_jiffies(val); > > + break; > > default: > > return -EINVAL; > > } > > You need not define TCP_BPF_RTO_MAX because TCP_RTO_MAX is not a > BPF specific option, and you can just reuse do_tcp_setsockopt(), > then bpf_getsockopt() also works. > > ---8<--- > diff --git a/net/core/filter.c b/net/core/filter.c > index 2ec162dd83c4..77732f10097c 100644 > --- a/net/core/filter.c > +++ b/net/core/filter.c > @@ -5382,6 +5382,7 @@ static int sol_tcp_sockopt(struct sock *sk, int optname, > case TCP_USER_TIMEOUT: > case TCP_NOTSENT_LOWAT: > case TCP_SAVE_SYN: > + case TCP_RTO_MAX: s/TCP_RTO_MAX/TCP_RTO_MAX_MS/ :) > if (*optlen != sizeof(int)) > return -EINVAL; > break; > ---8<---
