diff options
Diffstat (limited to 'net/socket.c')
-rw-r--r-- | net/socket.c | 77 |
1 files changed, 75 insertions, 2 deletions
diff --git a/net/socket.c b/net/socket.c index c9d70d3..d4c2002 100644 --- a/net/socket.c +++ b/net/socket.c @@ -534,6 +534,57 @@ static int net_socket_mcast_init(VLANState *vlan, } +static int net_socket_udp_init(VLANState *vlan, + const char *model, + const char *name, + const char *rhost, + const char *lhost) +{ + NetSocketState *s; + int fd, val, ret; + struct sockaddr_in laddr, raddr; + + if (parse_host_port(&laddr, lhost) < 0) { + return -1; + } + + if (parse_host_port(&raddr, rhost) < 0) { + return -1; + } + + fd = qemu_socket(PF_INET, SOCK_DGRAM, 0); + if (fd < 0) { + perror("socket(PF_INET, SOCK_DGRAM)"); + return -1; + } + val = 1; + ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, + (const char *)&val, sizeof(val)); + if (ret < 0) { + perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)"); + closesocket(fd); + return -1; + } + ret = bind(fd, (struct sockaddr *)&laddr, sizeof(laddr)); + if (ret < 0) { + perror("bind"); + closesocket(fd); + return -1; + } + + s = net_socket_fd_init(vlan, model, name, fd, 0); + if (!s) { + return -1; + } + + s->dgram_dst = raddr; + + snprintf(s->nc.info_str, sizeof(s->nc.info_str), + "socket: udp=%s:%d", + inet_ntoa(raddr.sin_addr), ntohs(raddr.sin_port)); + return 0; +} + int net_init_socket(QemuOpts *opts, Monitor *mon, const char *name, @@ -606,10 +657,32 @@ int net_init_socket(QemuOpts *opts, 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="); + return -1; + } + + 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= or mcast="); + error_report("-socket requires fd=, listen=, \ + connect=, mcast= or udp="); return -1; } - return 0; } |