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AJvYcCX4rvRFQ2It8hC7Y4NzpLyGG7Gy9hvC+VK3O8pEX+yieGQ7tonRZI14MsxkNVx76Qdt/bLhVJuzZ+CyeT7Uu8FxzjEUHF9RxFAdd3wBh2Hdmto2YoRQUWMl7sCNZsqNBFfu X-Gm-Message-State: AOJu0YwkOdO9kqhP1a9R8hRiQLrHMHhmNjePFLGjAFJVfoyT7UrT+KdC KNjtzYla7hI94F9+HDVHoE4jLQV3hxrJfMGHj8LK2JFNw3auySN9wmOYPAT7 X-Received: by 2002:ac8:5a41:0:b0:42e:ca55:e89a with SMTP id o1-20020ac85a41000000b0042eca55e89amr8281122qta.34.1709421585966; Sat, 02 Mar 2024 15:19:45 -0800 (PST) Received: from localhost ([2601:8c:502:14f0:acdd:1182:de4a:7f88]) by smtp.gmail.com with ESMTPSA id nw5-20020a0562143a0500b0068f2d2f64d1sm3422697qvb.32.2024.03.02.15.19.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 02 Mar 2024 15:19:45 -0800 (PST) Date: Sat, 2 Mar 2024 13:19:42 -0500 From: Oliver Crumrine To: alx@kernel.org Cc: linux-kernel@vger.kernel.org, linux-man@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH] ip.7: Add not supported by SOCK_STREAM to socket options Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792458470205645639 X-GMAIL-MSGID: 1792458470205645639 It was not made clear in several socket options that they were not supported by SOCK_STREAM; this patch fixes that. Socket options not supported by SOCK_STREAM are handled in the ip_cmsg_recv_offset function in net/ipv4/ip_sockglue.c. The function is called for udp sockets, and indirectly by ping and raw sockets, but not for TCP sockets, as they don't support these options. Signed-off-by: Oliver Crumrine --- man7/ip.7 | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/man7/ip.7 b/man7/ip.7 index 2b4b06324..104e65feb 100644 --- a/man7/ip.7 +++ b/man7/ip.7 @@ -828,6 +828,9 @@ is not zero, the primary local address of the interface specified by the index overwrites .I ipi_spec_dst for the routing table lookup. +Not supported for +.B SOCK_STREAM +sockets. .TP .BR IP_RECVERR " (since Linux 2.2)" .\" Precisely: since Linux 2.1.15 @@ -989,6 +992,9 @@ in which the kernel returns the original destination address of the datagram being received. The ancillary message contains a .IR "struct sockaddr_in" . +Not supported for +.B SOCK_STREAM +sockets. .TP .BR IP_RECVTOS " (since Linux 2.2)" .\" Precisely: since Linux 2.1.68 @@ -998,6 +1004,9 @@ ancillary message is passed with incoming packets. It contains a byte which specifies the Type of Service/Precedence field of the packet header. Expects a boolean integer flag. +Not supported for +.B SOCK_STREAM +sockets. .TP .BR IP_RECVTTL " (since Linux 2.2)" .\" Precisely: since Linux 2.1.68