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| author |   Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2006-09-22 09:33:58 +0100 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@mandriva.com> | 2006-09-24 17:49:26 -0300 |
| commit | 00e4d116a7ef94eb910be037912b0b2fc09f608b (patch) | |
| tree | 81e8a52c7529691b3c07605613da65cae80f41c9 /Documentation/networking/dccp.txt | |
| parent | Merge git://git.infradead.org/mtd-2.6 (diff) | |
| download | linux-dev-00e4d116a7ef94eb910be037912b0b2fc09f608b.tar.xz linux-dev-00e4d116a7ef94eb910be037912b0b2fc09f608b.zip | |
[DCCP]: Allow default/fallback service code.
This has been discussed on dccp@vger and removes the necessity for applications
to supply service codes in each and every case.
If an application does not want to provide a service code, that's fine, it will
be given 0. Otherwise, service codes can be set via socket options as before.
This patch has been tested using various client/server configurations
(including listening on multiple service codes).
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Diffstat (limited to 'Documentation/networking/dccp.txt')
| -rw-r--r-- | Documentation/networking/dccp.txt | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt index c45daabd3bfe..74563b38ffd9 100644 --- a/Documentation/networking/dccp.txt +++ b/Documentation/networking/dccp.txt @@ -1,7 +1,6 @@ DCCP protocol ============ -Last updated: 10 November 2005 Contents ======== @@ -42,8 +41,11 @@ Socket options DCCP_SOCKOPT_PACKET_SIZE is used for CCID3 to set default packet size for calculations. -DCCP_SOCKOPT_SERVICE sets the service. This is compulsory as per the -specification. If you don't set it you will get EPROTO. +DCCP_SOCKOPT_SERVICE sets the service. The specification mandates use of +service codes (RFC 4340, sec. 8.1.2); if this socket option is not set, +the socket will fall back to 0 (which means that no meaningful service code +is present). Connecting sockets set at most one service option; for +listening sockets, multiple service codes can be specified. Notes ===== |