slirp: Make Socket structure IPv6 compatible

This patch replaces foreign and local address/port couples in Socket
structure by 2 sockaddr_storage which can be casted in sockaddr_in.
Direct access to address and port is still possible thanks to some
\#define, so retrocompatibility of the existing code is assured.

The ss_family field of sockaddr_storage is declared after each socket
creation.

The whole structure is also saved/restored when a Qemu session is
saved/restored.

This prepares for IPv6 support.

Signed-off-by: Guillaume Subiron <maethor@subiron.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Guillaume Subiron 2015-12-19 22:24:58 +01:00 committed by Jason Wang
parent 18137fba35
commit eae303ff23
7 changed files with 78 additions and 16 deletions

View file

@ -31,10 +31,21 @@ struct socket {
struct tcpiphdr *so_ti; /* Pointer to the original ti within
* so_mconn, for non-blocking connections */
int so_urgc;
struct in_addr so_faddr; /* foreign host table entry */
struct in_addr so_laddr; /* local host table entry */
uint16_t so_fport; /* foreign port */
uint16_t so_lport; /* local port */
union { /* foreign host */
struct sockaddr_storage ss;
struct sockaddr_in sin;
} fhost;
#define so_faddr fhost.sin.sin_addr
#define so_fport fhost.sin.sin_port
#define so_ffamily fhost.ss.ss_family
union { /* local host */
struct sockaddr_storage ss;
struct sockaddr_in sin;
} lhost;
#define so_laddr lhost.sin.sin_addr
#define so_lport lhost.sin.sin_port
#define so_lfamily lhost.ss.ss_family
uint8_t so_iptos; /* Type of service */
uint8_t so_emu; /* Is the socket emulated? */