From mboxrd@z Thu Jan 1 00:00:00 1970 From: walter harms Subject: Re: IPPROTO_ICMP Date: Sat, 03 Dec 2016 13:43:16 +0100 Message-ID: <5842BDE4.3010204@bfs.de> References: Reply-To: wharms-fPG8STNUNVg@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-man-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Kees Cook Cc: linux-man List-Id: linux-man@vger.kernel.org Am 03.12.2016 05:58, schrieb Kees Cook: > Hi, > > So, while playing with IPPROTO_ICMP[1], I rediscovered the sysctl > needed to use it, and went to make sure that it was covered in the > man-pages. It is, in man.7 (ping_group_range), though there is no > mention of IPPROTO_ICMP there. Also, it seems that socket.2 says to > either look at protocols.5 (which just talks about the file) or ip.7 > for AF_INET. ip.7 says: > > udp_socket = socket(AF_INET, SOCK_DGRAM, 0); > > And continues to make assumptions that IPPROTO_ICMP doesn't exist: > "SOCK_DGRAM to open a udp(7) socket", "The only valid values for > protocol are ... 0 and IPPROTO_UDP", etc. Additionally, EACCESS is > missing the error condition for not having ping_group_range set > correctly. > > Does it make sense to put IPPROTO_ICMP details in ip.7? Or is there a > better place to list it? Are there additional details beyond what I > pointed out that should be updated in ip.7? > > Thanks! > > -Kees > > [1] https://lwn.net/Articles/443051/ > Interesting, i have never heard about it. But i would suggest this as a special chapter in ICMP(7). When I would search for information about ping, i would go to icmp not to IP. re, wh -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html