motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-03 15:53:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

Redirect slirp traffic to/from qemu character device (Gleb Natapov)

Browse source 
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6240 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-01-08 19:18:21 +00:00
parent 4dda406337
commit e1c5a2b334
8 changed files with 156 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

63
slirp/slirp.c
View file

@ -21,6 +21,7 @@
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu-common.h"
#include "slirp.h"
/* host address */
@ -736,9 +737,69 @@ int slirp_redir(int is_udp, int host_port,
return 0;
}
int slirp_add_exec(int do_pty, const char *args, int addr_low_byte,
int slirp_add_exec(int do_pty, const void *args, int addr_low_byte,
int guest_port)
{
return add_exec(&exec_list, do_pty, (char *)args,
addr_low_byte, htons(guest_port));
}
ssize_t slirp_send(struct socket *so, const void *buf, size_t len, int flags)
{
if (so->s == -1 && so->extra) {
qemu_chr_write(so->extra, buf, len);
return len;
}
return send(so->s, buf, len, flags);
}
static struct socket *slirp_find_ctl_socket(int addr_low_byte, int guest_port)
{
struct socket *so;
for (so = tcb.so_next; so != &tcb; so = so->so_next) {
if ((so->so_faddr.s_addr & htonl(0xffffff00)) ==
special_addr.s_addr
&& (ntohl(so->so_faddr.s_addr) & 0xff) ==
addr_low_byte
&& htons(so->so_fport) == guest_port)
return so;
}
return NULL;
}
size_t slirp_socket_can_recv(int addr_low_byte, int guest_port)
{
struct iovec iov[2];
struct socket *so;
if (!link_up)
return 0;
so = slirp_find_ctl_socket(addr_low_byte, guest_port);
if (!so || so->so_state & SS_NOFDREF)
return 0;
if (!CONN_CANFRCV(so) || so->so_snd.sb_cc >= (so->so_snd.sb_datalen/2))
return 0;
return sopreprbuf(so, iov, NULL);
}
void slirp_socket_recv(int addr_low_byte, int guest_port, const uint8_t *buf,
int size)
{
int ret;
struct socket *so = slirp_find_ctl_socket(addr_low_byte, guest_port);
if (!so)
return;
ret = soreadbuf(so, buf, size);
if (ret > 0)
tcp_output(sototcpcb(so));
}