Re: [PATCH libmnl] socket: creating a struct mnl_socket from a pre-existing socket

[Pablo Neira Ayuso <pablo@netfilter.org>]

On Sat, Sep 20, 2014 at 03:05:37PM +0900, Ken-ichirou MATSUZAWA wrote:
> This patch defines a new function mnl_socket_fdopen() which
> creates a struct mnl_socket object from a pre-existing netlink
> socket obtained from other process. Now I think of the socket
> is obtained from child process via send/recvmsg().

OK, you can also use this to send netlink messages using different
domain/type sockets from the same process too, I'm going to attach
this to the description.

> Signed-off-by: Ken-ichirou MATSUZAWA <chamas@h4.dion.ne.jp>
> ---
>  include/libmnl/libmnl.h |  1 +
>  src/libmnl.map          |  1 +
>  src/socket.c            | 20 ++++++++++++++++++++
>  3 files changed, 22 insertions(+)
> 
> diff --git a/include/libmnl/libmnl.h b/include/libmnl/libmnl.h
> index 223709c..0de6678 100644
> --- a/include/libmnl/libmnl.h
> +++ b/include/libmnl/libmnl.h
> @@ -22,6 +22,7 @@ extern "C" {
>  struct mnl_socket;
>  
>  extern struct mnl_socket *mnl_socket_open(int type);
> +extern struct mnl_socket *mnl_socket_fdopen(int fd);
>  extern int mnl_socket_bind(struct mnl_socket *nl, unsigned int groups, pid_t pid);
>  extern int mnl_socket_close(struct mnl_socket *nl);
>  extern int mnl_socket_get_fd(const struct mnl_socket *nl);
> diff --git a/src/libmnl.map b/src/libmnl.map
> index dbc332e..1ea8b8e 100644
> --- a/src/libmnl.map
> +++ b/src/libmnl.map
> @@ -71,4 +71,5 @@ local: *;
>  
>  LIBMNL_1.1 {
>    mnl_attr_parse_payload;
> +  mnl_socket_fdopen;

I'm going to fix this and apply. mnl_socket_fdopen doesn't belong
here.