[Resend with Quentin's right address, I hope] Hi Zexuan, Quentin, On 1/31/23 11:03, Zexuan Luo wrote: > Hello Colomar, > > I just found a potential bug in the bpf-helpers page. Thanks for reporting bugs :) > > Under the https://www.man7.org/linux/man-pages/man7/bpf-helpers.7.html:This page is generated from the Linux kernel sources. I've CCed Quentin and the BPF list so they can check it there.
BTW, I'm refreshing the page now.Quentin, I realized in the diff that there is some inconsistency in the number of spaces after a sentence-ending period. Could you please use two spaces for that? It's especially important for groff(1), which will render it differently. However, it's not a big issue, so don't feel urged to do that.
Cheers, Alex > > ``` > u64 bpf_get_socket_cookie(struct sk_buff *skb) > > Description > If the struct sk_buff pointed by skb has a known > socket, retrieve the cookie (generated by the > kernel) of this socket. If no cookie has been set > yet, generate a new cookie. Once generated, the > socket cookie remains stable for the life of the > socket. This helper can be useful for monitoring > per socket networking traffic statistics as it > provides a global socket identifier that can be > assumed unique. > > Return A 8-byte long non-decreasing number on success, or > 0 if the socket field is missing inside skb. > > u64 bpf_get_socket_cookie(struct bpf_sock_addr *ctx) > > Description > Equivalent to bpf_get_socket_cookie() helper that > accepts skb, but gets socket from struct > bpf_sock_addr context. > > Return A 8-byte long non-decreasing number. > > u64 bpf_get_socket_cookie(struct bpf_sock_ops *ctx) > > Description > Equivalent to bpf_get_socket_cookie() helper that > accepts skb, but gets socket from struct > bpf_sock_ops context. > > Return A 8-byte long non-decreasing number. > ``` > > The function bpf_get_socket_cookie repeats three times. The second one > should be bpf_get_socket_cookie_addr and the third one should be > bpf_get_socket_cookie_ops. -- <http://www.alejandro-colomar.es/>
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