diff options
| author |   Tom Herbert <therbert@google.com> | 2015-01-05 13:56:17 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-01-05 22:44:46 -0500 |
| commit | ad6f939ab193750cc94a265f58e007fb598c97b7 (patch) | |
| tree | f00a55adcedfde95441ed2ec498a2a294623522e /include | |
| parent | ip: Add offset parameter to ip_cmsg_recv (diff) | |
| download | linux-dev-ad6f939ab193750cc94a265f58e007fb598c97b7.tar.xz linux-dev-ad6f939ab193750cc94a265f58e007fb598c97b7.zip | |
ip: Add offset parameter to ip_cmsg_recv
Add ip_cmsg_recv_offset function which takes an offset argument
that indicates the starting offset in skb where data is being received
from. This will be useful in the case of UDP and provided checksum
to user space.
ip_cmsg_recv is an inline call to ip_cmsg_recv_offset with offset of
zero.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/inet_sock.h | 1 | ||||
| -rw-r--r-- | include/uapi/linux/in.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index 605ca421d5ab..eb16c7beed1e 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -203,6 +203,7 @@ struct inet_sock { #define IP_CMSG_RETOPTS BIT(4) #define IP_CMSG_PASSSEC BIT(5) #define IP_CMSG_ORIGDSTADDR BIT(6) +#define IP_CMSG_CHECKSUM BIT(7) static inline struct inet_sock *inet_sk(const struct sock *sk) { diff --git a/include/uapi/linux/in.h b/include/uapi/linux/in.h index c33a65e3d62c..589ced069e8a 100644 --- a/include/uapi/linux/in.h +++ b/include/uapi/linux/in.h @@ -109,6 +109,7 @@ struct in_addr { #define IP_MINTTL 21 #define IP_NODEFRAG 22 +#define IP_CHECKSUM 23 /* IP_MTU_DISCOVER values */ #define IP_PMTUDISC_DONT 0 /* Never send DF frames */ |