aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLaszlo Ersek <lersek@redhat.com>2012-07-17 16:17:17 +0200
committerStefan Hajnoczi <stefanha@linux.vnet.ibm.com>2012-07-23 11:55:18 +0100
commitbef8e8fe07e80821992f61d3775c6ac3766eee48 (patch)
tree3296361f99feef37c1b0432f5981c4105ee8577a
parent094f15c5c80a835dbe69afa8534909c681d35856 (diff)
downloadqemu-arm-bef8e8fe07e80821992f61d3775c6ac3766eee48.tar.gz
convert net_init_socket() to NetClientOptions
I "reverse engineered" the following permissions between the -socket sub-options: fd listen connect mcast udp | localaddr fd x . . . . | . listen . x . . . | . connect . . x . . | . mcast . . . x . | x udp . . . . x | x -------------------------------------------+ localaddr . . . x x x I transformed the code accordingly. The real fix would be to embed "fd", "listen", "connect", "mcast" and "udp" in a separate union. However OptsVisitor's enum parser only supports the type=XXX QemuOpt instance as union discriminator. Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-rw-r--r--net/socket.c119
1 files changed, 43 insertions, 76 deletions
diff --git a/net/socket.c b/net/socket.c
index 563447d02e..e3cba20cd9 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -586,101 +586,68 @@ static int net_socket_udp_init(VLANState *vlan,
return 0;
}
-int net_init_socket(QemuOpts *opts, const NetClientOptions *new_opts,
+int net_init_socket(QemuOpts *old_opts, const NetClientOptions *opts,
const char *name, VLANState *vlan)
{
- if (qemu_opt_get(opts, "fd")) {
- int fd;
+ const NetdevSocketOptions *sock;
- if (qemu_opt_get(opts, "listen") ||
- qemu_opt_get(opts, "connect") ||
- qemu_opt_get(opts, "mcast") ||
- qemu_opt_get(opts, "localaddr")) {
- error_report("listen=, connect=, mcast= and localaddr= is invalid with fd=");
- return -1;
- }
+ assert(opts->kind == NET_CLIENT_OPTIONS_KIND_SOCKET);
+ sock = opts->socket;
- fd = net_handle_fd_param(cur_mon, qemu_opt_get(opts, "fd"));
- if (fd == -1) {
- return -1;
- }
+ if (sock->has_fd + sock->has_listen + sock->has_connect + sock->has_mcast +
+ sock->has_udp != 1) {
+ error_report("exactly one of fd=, listen=, connect=, mcast= or udp="
+ " is required");
+ return -1;
+ }
- if (!net_socket_fd_init(vlan, "socket", name, fd, 1)) {
- return -1;
- }
- } else if (qemu_opt_get(opts, "listen")) {
- const char *listen;
-
- if (qemu_opt_get(opts, "fd") ||
- qemu_opt_get(opts, "connect") ||
- qemu_opt_get(opts, "mcast") ||
- qemu_opt_get(opts, "localaddr")) {
- error_report("fd=, connect=, mcast= and localaddr= is invalid with listen=");
- return -1;
- }
+ if (sock->has_localaddr && !sock->has_mcast && !sock->has_udp) {
+ error_report("localaddr= is only valid with mcast= or udp=");
+ return -1;
+ }
- listen = qemu_opt_get(opts, "listen");
+ if (sock->has_fd) {
+ int fd;
- if (net_socket_listen_init(vlan, "socket", name, listen) == -1) {
- return -1;
- }
- } else if (qemu_opt_get(opts, "connect")) {
- const char *connect;
-
- if (qemu_opt_get(opts, "fd") ||
- qemu_opt_get(opts, "listen") ||
- qemu_opt_get(opts, "mcast") ||
- qemu_opt_get(opts, "localaddr")) {
- error_report("fd=, listen=, mcast= and localaddr= is invalid with connect=");
+ fd = net_handle_fd_param(cur_mon, sock->fd);
+ if (fd == -1 || !net_socket_fd_init(vlan, "socket", name, fd, 1)) {
return -1;
}
+ return 0;
+ }
- connect = qemu_opt_get(opts, "connect");
-
- if (net_socket_connect_init(vlan, "socket", name, connect) == -1) {
+ if (sock->has_listen) {
+ if (net_socket_listen_init(vlan, "socket", name, sock->listen) == -1) {
return -1;
}
- } else if (qemu_opt_get(opts, "mcast")) {
- const char *mcast, *localaddr;
+ return 0;
+ }
- if (qemu_opt_get(opts, "fd") ||
- qemu_opt_get(opts, "connect") ||
- qemu_opt_get(opts, "listen")) {
- error_report("fd=, connect= and listen= is invalid with mcast=");
+ if (sock->has_connect) {
+ if (net_socket_connect_init(vlan, "socket", name, sock->connect) ==
+ -1) {
return -1;
}
+ return 0;
+ }
- mcast = qemu_opt_get(opts, "mcast");
- localaddr = qemu_opt_get(opts, "localaddr");
-
- if (net_socket_mcast_init(vlan, "socket", name, mcast, localaddr) == -1) {
- return -1;
- }
- } else if (qemu_opt_get(opts, "udp")) {
- const char *udp, *localaddr;
-
- if (qemu_opt_get(opts, "fd") ||
- qemu_opt_get(opts, "connect") ||
- qemu_opt_get(opts, "listen") ||
- qemu_opt_get(opts, "mcast")) {
- error_report("fd=, connect=, listen="
- " and mcast= is invalid with udp=");
+ if (sock->has_mcast) {
+ /* if sock->localaddr is missing, it has been initialized to "all bits
+ * zero" */
+ if (net_socket_mcast_init(vlan, "socket", name, sock->mcast,
+ sock->localaddr) == -1) {
return -1;
}
+ return 0;
+ }
- udp = qemu_opt_get(opts, "udp");
- localaddr = qemu_opt_get(opts, "localaddr");
- if (localaddr == NULL) {
- error_report("localaddr= is mandatory with udp=");
- return -1;
- }
-
- if (net_socket_udp_init(vlan, "udp", name, udp, localaddr) == -1) {
- return -1;
- }
- } else {
- error_report("-socket requires fd=, listen=,"
- " connect=, mcast= or udp=");
+ assert(sock->has_udp);
+ if (!sock->has_localaddr) {
+ error_report("localaddr= is mandatory with udp=");
+ return -1;
+ }
+ if (net_socket_udp_init(vlan, "udp", name, sock->udp, sock->localaddr) ==
+ -1) {
return -1;
}
return 0;