diff options
| author | Oliver Crumrine <ozlinuxc@gmail.com> | 2024-03-17 09:55:50 -0400 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2024-03-17 19:25:39 +0100 |
| commit | 5675cf3b048ec65b241d51c1130b55420a5d2456 (patch) | |
| tree | f74d305df40bd550ecdba87d0aeb7ee244e82593 | |
| parent | ac2a61ab289111df0c752d22f4875623110a201e (diff) | |
ip.7: Some socket options are not supported by SOCK_STREAM
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 STREAM sockets, as they don't support these
options.
Link: <https://lore.kernel.org/linux-man/ejhphmjh74ebtk4br3id66f27a4yoh4aukrcz7m6dp7acsu6zr@crtueyadqzmp/T/#mb298ac7f71a348d1e6b423cfa32bfad9c28efa40>
Link: <https://lore.kernel.org/linux-man/ejhphmjh74ebtk4br3id66f27a4yoh4aukrcz7m6dp7acsu6zr@crtueyadqzmp/T/#u>
Signed-off-by: Oliver Crumrine <ozlinuxc@gmail.com>
Cc: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
| -rw-r--r-- | man7/ip.7 | 13 |
1 files changed, 13 insertions, 0 deletions
@@ -828,6 +828,10 @@ is not zero, the primary local address of the interface specified by the index overwrites .I ipi_spec_dst for the routing table lookup. +.IP +Not supported for +.B SOCK_STREAM +sockets. .TP .BR IP_RECVERR " (since Linux 2.2)" .\" Precisely: since Linux 2.1.15 @@ -989,6 +993,9 @@ 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 +1005,9 @@ 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 @@ -1015,6 +1025,9 @@ Identical to .BR IP_RECVOPTS , but returns raw unprocessed options with timestamp and route record options not filled in for this hop. +Not supported for +.B SOCK_STREAM +sockets. .TP .BR IP_ROUTER_ALERT " (since Linux 2.2)" .\" Precisely: since Linux 2.1.68 |