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authorAlexander Graf <agraf@suse.de>2009-05-26 13:03:26 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2009-05-27 09:46:12 -0500
commitc1261d8d1617d8cf5722039a59ebb66c310f3aea (patch)
tree8aad15c7b36255d671f3911886b9c0985ee73f28 /net.c
parent8a43b1ea7fd02a8e9a5c5ef58017b1bd059663bb (diff)
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User Networking: Enable removal of redirections
Using the new host_net_redir command you can easily create redirections on the fly while your VM is running. While that's great, it's missing the removal of redirections, in case you want to have a port closed again at a later point in time. This patch adds support for removal of redirections. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'net.c')
-rw-r--r--net.c43
1 files changed, 42 insertions, 1 deletions
diff --git a/net.c b/net.c
index 88823b8..9f5b79b 100644
--- a/net.c
+++ b/net.c
@@ -568,7 +568,43 @@ static int net_slirp_init(VLANState *vlan, const char *model, const char *name)
return 0;
}
-void net_slirp_redir(Monitor *mon, const char *redir_str)
+static void net_slirp_redir_rm(Monitor *mon, const char *port_str)
+{
+ int host_port;
+ char buf[256] = "";
+ const char *p = port_str;
+ int is_udp = 0;
+ int n;
+
+ if (!mon)
+ return;
+
+ if (!port_str || !port_str[0])
+ goto fail_syntax;
+
+ get_str_sep(buf, sizeof(buf), &p, ':');
+
+ if (!strcmp(buf, "tcp") || buf[0] == '\0') {
+ is_udp = 0;
+ } else if (!strcmp(buf, "udp")) {
+ is_udp = 1;
+ } else {
+ goto fail_syntax;
+ }
+
+ host_port = atoi(p);
+
+ n = slirp_redir_rm(is_udp, host_port);
+
+ monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
+ is_udp ? "udp" : "tcp", host_port);
+ return;
+
+ fail_syntax:
+ monitor_printf(mon, "invalid format\n");
+}
+
+void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2)
{
int is_udp;
char buf[256], *r;
@@ -581,6 +617,11 @@ void net_slirp_redir(Monitor *mon, const char *redir_str)
slirp_init(slirp_restrict, slirp_ip);
}
+ if (!strcmp(redir_str, "remove")) {
+ net_slirp_redir_rm(mon, redir_opt2);
+ return;
+ }
+
p = redir_str;
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
goto fail_syntax;