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slirp: Rework monitor commands for host forwarding

Browse source 
Improve the monitor interface for adding and removing host forwarding
rules by splitting it up in two commands and rename them to hostfwd_add
and hostfwd_remove. Also split up the paths taken for legacy -redir
support and the monitor add command as the latter will be extended later
on.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka 2009-06-24 14:42:28 +02:00 committed by Anthony Liguori
parent 2ad82cf9e2
commit f3546deb07
4 changed files with 31 additions and 24 deletions
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41
net.c
View file

@ -871,7 +871,7 @@ static int net_slirp_init(Monitor *mon, VLANState *vlan, const char *model,
return 0;
}
static void net_slirp_hostfwd_remove(Monitor *mon, const char *port_str)
void net_slirp_hostfwd_remove(Monitor *mon, const char *port_str)
{
int host_port;
char buf[256] = "";
@ -879,8 +879,10 @@ static void net_slirp_hostfwd_remove(Monitor *mon, const char *port_str)
int is_udp = 0;
int n;
if (!mon)
if (!slirp_inited) {
monitor_printf(mon, "user mode network stack not in use\n");
return;
}
if (!port_str || !port_str[0])
goto fail_syntax;
@ -958,31 +960,32 @@ static void slirp_hostfwd(Monitor *mon, const char *redir_str)
config_error(mon, "invalid host forwarding rule '%s'\n", redir_str);
}
void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2)
void net_slirp_hostfwd_add(Monitor *mon, const char *redir_str)
{
struct slirp_config_str *config;
if (!slirp_inited) {
if (mon) {
monitor_printf(mon, "user mode network stack not in use\n");
} else {
config = qemu_malloc(sizeof(*config));
pstrcpy(config->str, sizeof(config->str), redir_str);
config->flags = SLIRP_CFG_HOSTFWD;
config->next = slirp_configs;
slirp_configs = config;
}
return;
}
if (!strcmp(redir_str, "remove")) {
net_slirp_hostfwd_remove(mon, redir_opt2);
monitor_printf(mon, "user mode network stack not in use\n");
return;
}
slirp_hostfwd(mon, redir_str);
}
void net_slirp_redir(const char *redir_str)
{
struct slirp_config_str *config;
if (!slirp_inited) {
config = qemu_malloc(sizeof(*config));
pstrcpy(config->str, sizeof(config->str), redir_str);
config->flags = SLIRP_CFG_HOSTFWD;
config->next = slirp_configs;
slirp_configs = config;
return;
}
slirp_hostfwd(NULL, redir_str);
}
#ifndef _WIN32
static char smb_dir[1024];

4
net.h
View file

@ -132,7 +132,9 @@ int net_client_init(Monitor *mon, const char *device, const char *p);
void net_client_uninit(NICInfo *nd);
int net_client_parse(const char *str);
void net_slirp_smb(const char *exported_dir);
void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2);
void net_slirp_hostfwd_add(Monitor *mon, const char *redir_str);
void net_slirp_hostfwd_remove(Monitor *mon, const char *port_str);
void net_slirp_redir(const char *redir_str);
void net_cleanup(void);
int slirp_is_inited(void);
void net_client_check(void);

8
qemu-monitor.hx
View file

@ -536,9 +536,11 @@ Remove host VLAN client.
ETEXI
#ifdef CONFIG_SLIRP
{ "host_net_redir", "ss?", net_slirp_redir,
"[tcp|udp]:host-port:[guest-host]:guest-port", "redirect TCP or UDP connections from host to guest (requires -net user)\n"
"host_net_redir remove [tcp:|udp:]host-port -- remove redirection" },
{ "hostfwd_add", "s", net_slirp_hostfwd_add,
"[tcp|udp]:hostport:[guestaddr]:guestport",
"redirect TCP or UDP connections from host to guest (requires -net user)" },
{ "hostfwd_remove", "s", net_slirp_hostfwd_remove,
"[tcp|udp]:hostport", "remove host-to-guest TCP or UDP redirection" },
#endif
STEXI
@item host_net_redir

2
vl.c
View file

@ -5319,7 +5319,7 @@ int main(int argc, char **argv, char **envp)
break;
#endif
case QEMU_OPTION_redir:
net_slirp_redir(NULL, optarg, NULL);
net_slirp_redir(optarg);
break;
#endif
case QEMU_OPTION_bt: