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User networking: Show active connections

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In case you're wondering what connections exactly you have open
or maybe redir'ed in the past, you can't really find out from qemu
right now.

This patch enables you to see all current connections the host
only networking holds open, so you can kill them using the previous
patch.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Alexander Graf 2009-05-26 13:03:27 +02:00 • committed by Anthony Liguori
parent c1261d8d16
commit 1c6ed9f337
4 changed files with 74 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

4
slirp/libslirp.h
View file

@ -18,6 +18,10 @@ void slirp_input(const uint8_t *pkt, int pkt_len);
int slirp_can_output(void);
void slirp_output(const uint8_t *pkt, int pkt_len);
void slirp_redir_loop(void (*func)(void *opaque, int is_udp,
struct in_addr *laddr, u_int lport,
struct in_addr *faddr, u_int fport),
void *opaque);
int slirp_redir_rm(int is_udp, int host_port);
int slirp_redir(int is_udp, int host_port,
struct in_addr guest_addr, int guest_port);

24
slirp/slirp.c
View file

@ -734,6 +734,30 @@ void if_encap(const uint8_t *ip_data, int ip_data_len)
}
}
static void _slirp_redir_loop(void (*func)(void *opaque, int is_udp,
struct in_addr *laddr, u_int lport,
struct in_addr *faddr, u_int fport),
void *opaque, int is_udp)
{
struct socket *head = (is_udp ? &udb : &tcb);
struct socket *so;
for (so = head->so_next; so != head; so = so->so_next) {
func(opaque, is_udp,
&so->so_laddr, ntohs(so->so_lport),
&so->so_faddr, ntohs(so->so_fport));
}
}
void slirp_redir_loop(void (*func)(void *opaque, int is_udp,
struct in_addr *laddr, u_int lport,
struct in_addr *faddr, u_int fport),
void *opaque)
{
_slirp_redir_loop(func, opaque, 0);
_slirp_redir_loop(func, opaque, 1);
}
/* Unlistens a redirection
*
* Return value: number of redirs removed */