diff options
Diffstat (limited to 'net/dgram.c')
| -rw-r--r-- | net/dgram.c | 55 |
1 files changed, 54 insertions, 1 deletions
diff --git a/net/dgram.c b/net/dgram.c index e581cc62f3..9f7bf38376 100644 --- a/net/dgram.c +++ b/net/dgram.c @@ -426,6 +426,7 @@ int net_init_dgram(const Netdev *netdev, const char *name, SocketAddress *remote, *local; struct sockaddr *dest_addr; struct sockaddr_in laddr_in, raddr_in; + struct sockaddr_un laddr_un, raddr_un; socklen_t dest_len; assert(netdev->type == NET_CLIENT_DRIVER_DGRAM); @@ -465,7 +466,8 @@ int net_init_dgram(const Netdev *netdev, const char *name, } } else { if (local->type != SOCKET_ADDRESS_TYPE_FD) { - error_setg(errp, "type=inet requires remote parameter"); + error_setg(errp, + "type=inet or type=unix requires remote parameter"); return -1; } } @@ -508,6 +510,53 @@ int net_init_dgram(const Netdev *netdev, const char *name, dest_addr = g_malloc(dest_len); memcpy(dest_addr, &raddr_in, dest_len); break; + case SOCKET_ADDRESS_TYPE_UNIX: + ret = unlink(local->u.q_unix.path); + if (ret < 0 && errno != ENOENT) { + error_setg_errno(errp, errno, "failed to unlink socket %s", + local->u.q_unix.path); + return -1; + } + + laddr_un.sun_family = PF_UNIX; + ret = snprintf(laddr_un.sun_path, sizeof(laddr_un.sun_path), "%s", + local->u.q_unix.path); + if (ret < 0 || ret >= sizeof(laddr_un.sun_path)) { + error_setg(errp, "UNIX socket path '%s' is too long", + local->u.q_unix.path); + error_append_hint(errp, "Path must be less than %zu bytes\n", + sizeof(laddr_un.sun_path)); + } + + raddr_un.sun_family = PF_UNIX; + ret = snprintf(raddr_un.sun_path, sizeof(raddr_un.sun_path), "%s", + remote->u.q_unix.path); + if (ret < 0 || ret >= sizeof(raddr_un.sun_path)) { + error_setg(errp, "UNIX socket path '%s' is too long", + remote->u.q_unix.path); + error_append_hint(errp, "Path must be less than %zu bytes\n", + sizeof(raddr_un.sun_path)); + } + + fd = qemu_socket(PF_UNIX, SOCK_DGRAM, 0); + if (fd < 0) { + error_setg_errno(errp, errno, "can't create datagram socket"); + return -1; + } + + ret = bind(fd, (struct sockaddr *)&laddr_un, sizeof(laddr_un)); + if (ret < 0) { + error_setg_errno(errp, errno, "can't bind unix=%s to socket", + laddr_un.sun_path); + closesocket(fd); + return -1; + } + qemu_socket_set_nonblock(fd); + + dest_len = sizeof(raddr_un); + dest_addr = g_malloc(dest_len); + memcpy(dest_addr, &raddr_un, dest_len); + break; case SOCKET_ADDRESS_TYPE_FD: fd = monitor_fd_param(monitor_cur(), local->u.fd.str, errp); if (fd == -1) { @@ -546,6 +595,10 @@ int net_init_dgram(const Netdev *netdev, const char *name, inet_ntoa(raddr_in.sin_addr), ntohs(raddr_in.sin_port)); break; + case SOCKET_ADDRESS_TYPE_UNIX: + qemu_set_info_str(&s->nc, "udp=%s:%s", + laddr_un.sun_path, raddr_un.sun_path); + break; case SOCKET_ADDRESS_TYPE_FD: { SocketAddress *sa; SocketAddressType sa_type; |