From f771bef98004d9d141b085d987a77d06669d4f4f Mon Sep 17 00:00:00 2001 From: Nivedita Singhvi Date: Thu, 28 May 2009 07:00:46 +0000 Subject: ipv4: New multicast-all socket option After some discussion offline with Christoph Lameter and David Stevens regarding multicast behaviour in Linux, I'm submitting a slightly modified patch from the one Christoph submitted earlier. This patch provides a new socket option IP_MULTICAST_ALL. In this case, default behaviour is _unchanged_ from the current Linux standard. The socket option is set by default to provide original behaviour. Sockets wishing to receive data only from multicast groups they join explicitly will need to clear this socket option. Signed-off-by: Nivedita Singhvi Signed-off-by: Christoph Lameter Acked-by: David Stevens Signed-off-by: David S. Miller --- include/net/inet_sock.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/net/inet_sock.h') diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index de0ecc71cf0..20a6957af87 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -130,7 +130,8 @@ struct inet_sock { freebind:1, hdrincl:1, mc_loop:1, - transparent:1; + transparent:1, + mc_all:1; int mc_index; __be32 mc_addr; struct ip_mc_socklist *mc_list; -- cgit v1.2.3-70-g09d2 From 45e3ff82708c65c895d5c5882aff17ecf62a80b5 Mon Sep 17 00:00:00 2001 From: Vegard Nossum Date: Tue, 9 Sep 2008 06:43:12 +0200 Subject: net: annotate bitfields in struct inet_sock Signed-off-by: Vegard Nossum --- include/net/inet_sock.h | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'include/net/inet_sock.h') diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index de0ecc71cf0..cbcda0b0b96 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -17,6 +17,7 @@ #define _INET_SOCK_H +#include #include #include #include @@ -66,14 +67,16 @@ struct inet_request_sock { __be32 loc_addr; __be32 rmt_addr; __be16 rmt_port; - u16 snd_wscale : 4, - rcv_wscale : 4, + kmemcheck_bitfield_begin(flags); + u16 snd_wscale : 4, + rcv_wscale : 4, tstamp_ok : 1, sack_ok : 1, wscale_ok : 1, ecn_ok : 1, acked : 1, no_srccheck: 1; + kmemcheck_bitfield_end(flags); struct ip_options *opt; }; @@ -198,9 +201,12 @@ static inline int inet_sk_ehashfn(const struct sock *sk) static inline struct request_sock *inet_reqsk_alloc(struct request_sock_ops *ops) { struct request_sock *req = reqsk_alloc(ops); + struct inet_request_sock *ireq = inet_rsk(req); - if (req != NULL) - inet_rsk(req)->opt = NULL; + if (req != NULL) { + kmemcheck_annotate_bitfield(ireq, flags); + ireq->opt = NULL; + } return req; } -- cgit v1.2.3-70-g09d2