Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 1 | /* |
| 2 | * QEMU System Emulator |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
Peter Maydell | 2744d92 | 2016-01-29 17:50:00 +0000 | [diff] [blame] | 24 | #include "qemu/osdep.h" |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 25 | |
Paolo Bonzini | 1422e32 | 2012-10-24 08:43:34 +0200 | [diff] [blame] | 26 | #include "net/net.h" |
Paolo Bonzini | a245fc1 | 2012-09-17 18:43:51 +0200 | [diff] [blame] | 27 | #include "clients.h" |
Paolo Bonzini | 83c9089 | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 28 | #include "monitor/monitor.h" |
Markus Armbruster | da34e65 | 2016-03-14 09:01:28 +0100 | [diff] [blame] | 29 | #include "qapi/error.h" |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 30 | #include "qemu-common.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 31 | #include "qemu/error-report.h" |
| 32 | #include "qemu/option.h" |
| 33 | #include "qemu/sockets.h" |
| 34 | #include "qemu/iov.h" |
Alex Bligh | 6a1751b | 2013-08-21 16:02:47 +0100 | [diff] [blame] | 35 | #include "qemu/main-loop.h" |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 36 | |
| 37 | typedef struct NetSocketState { |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 38 | NetClientState nc; |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 39 | int listen_fd; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 40 | int fd; |
Zhang Chen | 16a3df4 | 2016-05-13 15:35:19 +0800 | [diff] [blame] | 41 | SocketReadState rs; |
Stefan Hajnoczi | 45a7f54 | 2012-08-20 10:14:35 +0100 | [diff] [blame] | 42 | unsigned int send_index; /* number of bytes sent (only SOCK_STREAM) */ |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 43 | struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ |
Stefan Hajnoczi | 863f678 | 2012-08-20 10:21:54 +0100 | [diff] [blame] | 44 | IOHandler *send_fn; /* differs between SOCK_STREAM/SOCK_DGRAM */ |
| 45 | bool read_poll; /* waiting to receive data? */ |
| 46 | bool write_poll; /* waiting to transmit data? */ |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 47 | } NetSocketState; |
| 48 | |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 49 | static void net_socket_accept(void *opaque); |
Stefan Hajnoczi | 863f678 | 2012-08-20 10:21:54 +0100 | [diff] [blame] | 50 | static void net_socket_writable(void *opaque); |
| 51 | |
Stefan Hajnoczi | 863f678 | 2012-08-20 10:21:54 +0100 | [diff] [blame] | 52 | static void net_socket_update_fd_handler(NetSocketState *s) |
| 53 | { |
Fam Zheng | 82e1cc4 | 2015-06-04 14:45:18 +0800 | [diff] [blame] | 54 | qemu_set_fd_handler(s->fd, |
| 55 | s->read_poll ? s->send_fn : NULL, |
| 56 | s->write_poll ? net_socket_writable : NULL, |
| 57 | s); |
Stefan Hajnoczi | 863f678 | 2012-08-20 10:21:54 +0100 | [diff] [blame] | 58 | } |
| 59 | |
| 60 | static void net_socket_read_poll(NetSocketState *s, bool enable) |
| 61 | { |
| 62 | s->read_poll = enable; |
| 63 | net_socket_update_fd_handler(s); |
| 64 | } |
| 65 | |
| 66 | static void net_socket_write_poll(NetSocketState *s, bool enable) |
| 67 | { |
| 68 | s->write_poll = enable; |
| 69 | net_socket_update_fd_handler(s); |
| 70 | } |
| 71 | |
| 72 | static void net_socket_writable(void *opaque) |
| 73 | { |
| 74 | NetSocketState *s = opaque; |
| 75 | |
| 76 | net_socket_write_poll(s, false); |
| 77 | |
| 78 | qemu_flush_queued_packets(&s->nc); |
| 79 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 80 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 81 | static ssize_t net_socket_receive(NetClientState *nc, const uint8_t *buf, size_t size) |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 82 | { |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 83 | NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc); |
Stefan Hajnoczi | 45a7f54 | 2012-08-20 10:14:35 +0100 | [diff] [blame] | 84 | uint32_t len = htonl(size); |
| 85 | struct iovec iov[] = { |
| 86 | { |
| 87 | .iov_base = &len, |
| 88 | .iov_len = sizeof(len), |
| 89 | }, { |
| 90 | .iov_base = (void *)buf, |
| 91 | .iov_len = size, |
| 92 | }, |
| 93 | }; |
| 94 | size_t remaining; |
| 95 | ssize_t ret; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 96 | |
Stefan Hajnoczi | 45a7f54 | 2012-08-20 10:14:35 +0100 | [diff] [blame] | 97 | remaining = iov_size(iov, 2) - s->send_index; |
| 98 | ret = iov_send(s->fd, iov, 2, s->send_index, remaining); |
| 99 | |
| 100 | if (ret == -1 && errno == EAGAIN) { |
| 101 | ret = 0; /* handled further down */ |
| 102 | } |
| 103 | if (ret == -1) { |
| 104 | s->send_index = 0; |
| 105 | return -errno; |
| 106 | } |
| 107 | if (ret < (ssize_t)remaining) { |
| 108 | s->send_index += ret; |
| 109 | net_socket_write_poll(s, true); |
| 110 | return 0; |
| 111 | } |
| 112 | s->send_index = 0; |
| 113 | return size; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 114 | } |
| 115 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 116 | static ssize_t net_socket_receive_dgram(NetClientState *nc, const uint8_t *buf, size_t size) |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 117 | { |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 118 | NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc); |
Stefan Hajnoczi | 213fd50 | 2012-08-20 10:28:53 +0100 | [diff] [blame] | 119 | ssize_t ret; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 120 | |
Stefan Hajnoczi | 213fd50 | 2012-08-20 10:28:53 +0100 | [diff] [blame] | 121 | do { |
Stefan Weil | 73062df | 2012-09-22 21:13:28 +0200 | [diff] [blame] | 122 | ret = qemu_sendto(s->fd, buf, size, 0, |
| 123 | (struct sockaddr *)&s->dgram_dst, |
| 124 | sizeof(s->dgram_dst)); |
Stefan Hajnoczi | 213fd50 | 2012-08-20 10:28:53 +0100 | [diff] [blame] | 125 | } while (ret == -1 && errno == EINTR); |
| 126 | |
| 127 | if (ret == -1 && errno == EAGAIN) { |
| 128 | net_socket_write_poll(s, true); |
| 129 | return 0; |
| 130 | } |
| 131 | return ret; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 132 | } |
| 133 | |
Fam Zheng | 6e99c63 | 2015-06-04 14:45:16 +0800 | [diff] [blame] | 134 | static void net_socket_send_completed(NetClientState *nc, ssize_t len) |
| 135 | { |
| 136 | NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc); |
| 137 | |
| 138 | if (!s->read_poll) { |
| 139 | net_socket_read_poll(s, true); |
| 140 | } |
| 141 | } |
| 142 | |
Zhang Chen | 16a3df4 | 2016-05-13 15:35:19 +0800 | [diff] [blame] | 143 | static void net_socket_rs_finalize(SocketReadState *rs) |
| 144 | { |
| 145 | NetSocketState *s = container_of(rs, NetSocketState, rs); |
| 146 | |
| 147 | if (qemu_send_packet_async(&s->nc, rs->buf, |
| 148 | rs->packet_len, |
| 149 | net_socket_send_completed) == 0) { |
| 150 | net_socket_read_poll(s, false); |
| 151 | } |
| 152 | } |
| 153 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 154 | static void net_socket_send(void *opaque) |
| 155 | { |
| 156 | NetSocketState *s = opaque; |
Daniel P. Berrange | b16a44e | 2016-03-07 20:36:03 +0000 | [diff] [blame] | 157 | int size; |
Zhang Chen | 16a3df4 | 2016-05-13 15:35:19 +0800 | [diff] [blame] | 158 | int ret; |
Scott Feldman | d32fcad | 2013-03-18 11:43:44 -0700 | [diff] [blame] | 159 | uint8_t buf1[NET_BUFSIZE]; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 160 | const uint8_t *buf; |
| 161 | |
Blue Swirl | 00aa004 | 2011-07-23 20:04:29 +0000 | [diff] [blame] | 162 | size = qemu_recv(s->fd, buf1, sizeof(buf1), 0); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 163 | if (size < 0) { |
Daniel P. Berrange | b16a44e | 2016-03-07 20:36:03 +0000 | [diff] [blame] | 164 | if (errno != EWOULDBLOCK) |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 165 | goto eoc; |
| 166 | } else if (size == 0) { |
| 167 | /* end of connection */ |
| 168 | eoc: |
Stefan Hajnoczi | 863f678 | 2012-08-20 10:21:54 +0100 | [diff] [blame] | 169 | net_socket_read_poll(s, false); |
| 170 | net_socket_write_poll(s, false); |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 171 | if (s->listen_fd != -1) { |
| 172 | qemu_set_fd_handler(s->listen_fd, net_socket_accept, NULL, s); |
| 173 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 174 | closesocket(s->fd); |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 175 | |
| 176 | s->fd = -1; |
Zhang Chen | 16a3df4 | 2016-05-13 15:35:19 +0800 | [diff] [blame] | 177 | net_socket_rs_init(&s->rs, net_socket_rs_finalize); |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 178 | s->nc.link_down = true; |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 179 | memset(s->nc.info_str, 0, sizeof(s->nc.info_str)); |
| 180 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 181 | return; |
| 182 | } |
| 183 | buf = buf1; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 184 | |
Zhang Chen | 16a3df4 | 2016-05-13 15:35:19 +0800 | [diff] [blame] | 185 | ret = net_fill_rstate(&s->rs, buf, size); |
| 186 | |
| 187 | if (ret == -1) { |
| 188 | goto eoc; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 189 | } |
| 190 | } |
| 191 | |
| 192 | static void net_socket_send_dgram(void *opaque) |
| 193 | { |
| 194 | NetSocketState *s = opaque; |
| 195 | int size; |
| 196 | |
Zhang Chen | 16a3df4 | 2016-05-13 15:35:19 +0800 | [diff] [blame] | 197 | size = qemu_recv(s->fd, s->rs.buf, sizeof(s->rs.buf), 0); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 198 | if (size < 0) |
| 199 | return; |
| 200 | if (size == 0) { |
| 201 | /* end of connection */ |
Stefan Hajnoczi | 863f678 | 2012-08-20 10:21:54 +0100 | [diff] [blame] | 202 | net_socket_read_poll(s, false); |
| 203 | net_socket_write_poll(s, false); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 204 | return; |
| 205 | } |
Zhang Chen | 16a3df4 | 2016-05-13 15:35:19 +0800 | [diff] [blame] | 206 | if (qemu_send_packet_async(&s->nc, s->rs.buf, size, |
Fam Zheng | 6e99c63 | 2015-06-04 14:45:16 +0800 | [diff] [blame] | 207 | net_socket_send_completed) == 0) { |
| 208 | net_socket_read_poll(s, false); |
| 209 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 210 | } |
| 211 | |
Mike Ryan | 3a75e74 | 2010-12-01 11:16:47 -0800 | [diff] [blame] | 212 | static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr *localaddr) |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 213 | { |
| 214 | struct ip_mreq imr; |
| 215 | int fd; |
| 216 | int val, ret; |
Brad | 23ddf2b | 2011-08-07 11:06:43 +0000 | [diff] [blame] | 217 | #ifdef __OpenBSD__ |
| 218 | unsigned char loop; |
| 219 | #else |
| 220 | int loop; |
| 221 | #endif |
| 222 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 223 | if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) { |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 224 | fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) " |
| 225 | "does not contain a multicast address\n", |
| 226 | inet_ntoa(mcastaddr->sin_addr), |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 227 | (int)ntohl(mcastaddr->sin_addr.s_addr)); |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 228 | return -1; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 229 | |
| 230 | } |
Kevin Wolf | 40ff6d7 | 2009-12-02 12:24:42 +0100 | [diff] [blame] | 231 | fd = qemu_socket(PF_INET, SOCK_DGRAM, 0); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 232 | if (fd < 0) { |
| 233 | perror("socket(PF_INET, SOCK_DGRAM)"); |
| 234 | return -1; |
| 235 | } |
| 236 | |
Sebastian Ottlik | bcbe92f | 2013-10-02 12:23:14 +0200 | [diff] [blame] | 237 | /* Allow multiple sockets to bind the same multicast ip and port by setting |
| 238 | * SO_REUSEADDR. This is the only situation where SO_REUSEADDR should be set |
| 239 | * on windows. Use socket_set_fast_reuse otherwise as it sets SO_REUSEADDR |
| 240 | * only on posix systems. |
| 241 | */ |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 242 | val = 1; |
Stefan Weil | 9957fc7 | 2013-03-08 19:58:32 +0100 | [diff] [blame] | 243 | ret = qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 244 | if (ret < 0) { |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 245 | perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)"); |
| 246 | goto fail; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 247 | } |
| 248 | |
| 249 | ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); |
| 250 | if (ret < 0) { |
| 251 | perror("bind"); |
| 252 | goto fail; |
| 253 | } |
| 254 | |
| 255 | /* Add host to multicast group */ |
| 256 | imr.imr_multiaddr = mcastaddr->sin_addr; |
Mike Ryan | 3a75e74 | 2010-12-01 11:16:47 -0800 | [diff] [blame] | 257 | if (localaddr) { |
| 258 | imr.imr_interface = *localaddr; |
| 259 | } else { |
| 260 | imr.imr_interface.s_addr = htonl(INADDR_ANY); |
| 261 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 262 | |
Stefan Weil | 9957fc7 | 2013-03-08 19:58:32 +0100 | [diff] [blame] | 263 | ret = qemu_setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, |
| 264 | &imr, sizeof(struct ip_mreq)); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 265 | if (ret < 0) { |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 266 | perror("setsockopt(IP_ADD_MEMBERSHIP)"); |
| 267 | goto fail; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 268 | } |
| 269 | |
| 270 | /* Force mcast msgs to loopback (eg. several QEMUs in same host */ |
Brad | 23ddf2b | 2011-08-07 11:06:43 +0000 | [diff] [blame] | 271 | loop = 1; |
Stefan Weil | 9957fc7 | 2013-03-08 19:58:32 +0100 | [diff] [blame] | 272 | ret = qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, |
| 273 | &loop, sizeof(loop)); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 274 | if (ret < 0) { |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 275 | perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)"); |
| 276 | goto fail; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 277 | } |
| 278 | |
Mike Ryan | 3a75e74 | 2010-12-01 11:16:47 -0800 | [diff] [blame] | 279 | /* If a bind address is given, only send packets from that address */ |
| 280 | if (localaddr != NULL) { |
Stefan Weil | 9957fc7 | 2013-03-08 19:58:32 +0100 | [diff] [blame] | 281 | ret = qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF, |
| 282 | localaddr, sizeof(*localaddr)); |
Mike Ryan | 3a75e74 | 2010-12-01 11:16:47 -0800 | [diff] [blame] | 283 | if (ret < 0) { |
| 284 | perror("setsockopt(IP_MULTICAST_IF)"); |
| 285 | goto fail; |
| 286 | } |
| 287 | } |
| 288 | |
Stefan Hajnoczi | f9e8cac | 2013-03-27 10:10:43 +0100 | [diff] [blame] | 289 | qemu_set_nonblock(fd); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 290 | return fd; |
| 291 | fail: |
| 292 | if (fd >= 0) |
| 293 | closesocket(fd); |
| 294 | return -1; |
| 295 | } |
| 296 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 297 | static void net_socket_cleanup(NetClientState *nc) |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 298 | { |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 299 | NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc); |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 300 | if (s->fd != -1) { |
Stefan Hajnoczi | 863f678 | 2012-08-20 10:21:54 +0100 | [diff] [blame] | 301 | net_socket_read_poll(s, false); |
| 302 | net_socket_write_poll(s, false); |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 303 | close(s->fd); |
| 304 | s->fd = -1; |
| 305 | } |
| 306 | if (s->listen_fd != -1) { |
| 307 | qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
| 308 | closesocket(s->listen_fd); |
| 309 | s->listen_fd = -1; |
| 310 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 311 | } |
| 312 | |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 313 | static NetClientInfo net_dgram_socket_info = { |
Eric Blake | f394b2e | 2016-07-13 21:50:23 -0600 | [diff] [blame] | 314 | .type = NET_CLIENT_DRIVER_SOCKET, |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 315 | .size = sizeof(NetSocketState), |
| 316 | .receive = net_socket_receive_dgram, |
| 317 | .cleanup = net_socket_cleanup, |
| 318 | }; |
| 319 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 320 | static NetSocketState *net_socket_fd_init_dgram(NetClientState *peer, |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 321 | const char *model, |
| 322 | const char *name, |
| 323 | int fd, int is_connected) |
| 324 | { |
| 325 | struct sockaddr_in saddr; |
| 326 | int newfd; |
zhanghailiang | ed6273e | 2014-11-17 13:54:05 +0800 | [diff] [blame] | 327 | socklen_t saddr_len = sizeof(saddr); |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 328 | NetClientState *nc; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 329 | NetSocketState *s; |
| 330 | |
| 331 | /* fd passed: multicast: "learn" dgram_dst address from bound address and save it |
| 332 | * Because this may be "shared" socket from a "master" process, datagrams would be recv() |
| 333 | * by ONLY ONE process: we must "clone" this dgram socket --jjo |
| 334 | */ |
| 335 | |
| 336 | if (is_connected) { |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 337 | if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) { |
| 338 | /* must be bound */ |
| 339 | if (saddr.sin_addr.s_addr == 0) { |
| 340 | fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, " |
| 341 | "cannot setup multicast dst addr\n", fd); |
Stefan Hajnoczi | e5d1fca | 2011-12-07 15:01:49 +0000 | [diff] [blame] | 342 | goto err; |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 343 | } |
| 344 | /* clone dgram socket */ |
| 345 | newfd = net_socket_mcast_create(&saddr, NULL); |
| 346 | if (newfd < 0) { |
| 347 | /* error already reported by net_socket_mcast_create() */ |
Stefan Hajnoczi | e5d1fca | 2011-12-07 15:01:49 +0000 | [diff] [blame] | 348 | goto err; |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 349 | } |
| 350 | /* clone newfd to fd, close newfd */ |
| 351 | dup2(newfd, fd); |
| 352 | close(newfd); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 353 | |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 354 | } else { |
| 355 | fprintf(stderr, |
| 356 | "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n", |
| 357 | fd, strerror(errno)); |
Stefan Hajnoczi | e5d1fca | 2011-12-07 15:01:49 +0000 | [diff] [blame] | 358 | goto err; |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 359 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 360 | } |
| 361 | |
Stefan Hajnoczi | ab5f3f8 | 2012-07-24 16:35:08 +0100 | [diff] [blame] | 362 | nc = qemu_new_net_client(&net_dgram_socket_info, peer, model, name); |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 363 | |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 364 | s = DO_UPCAST(NetSocketState, nc, nc); |
| 365 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 366 | s->fd = fd; |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 367 | s->listen_fd = -1; |
Stefan Hajnoczi | 863f678 | 2012-08-20 10:21:54 +0100 | [diff] [blame] | 368 | s->send_fn = net_socket_send_dgram; |
Zhang Chen | 16a3df4 | 2016-05-13 15:35:19 +0800 | [diff] [blame] | 369 | net_socket_rs_init(&s->rs, net_socket_rs_finalize); |
Stefan Hajnoczi | 863f678 | 2012-08-20 10:21:54 +0100 | [diff] [blame] | 370 | net_socket_read_poll(s, true); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 371 | |
| 372 | /* mcast: save bound address as dst */ |
Zhi Yong Wu | e34cde3 | 2012-07-20 14:25:52 +0100 | [diff] [blame] | 373 | if (is_connected) { |
| 374 | s->dgram_dst = saddr; |
Gonglei | 8db804a | 2014-11-20 19:35:01 +0800 | [diff] [blame] | 375 | snprintf(nc->info_str, sizeof(nc->info_str), |
| 376 | "socket: fd=%d (cloned mcast=%s:%d)", |
| 377 | fd, inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 378 | } else { |
| 379 | snprintf(nc->info_str, sizeof(nc->info_str), |
| 380 | "socket: fd=%d", fd); |
Zhi Yong Wu | e34cde3 | 2012-07-20 14:25:52 +0100 | [diff] [blame] | 381 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 382 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 383 | return s; |
Stefan Hajnoczi | e5d1fca | 2011-12-07 15:01:49 +0000 | [diff] [blame] | 384 | |
| 385 | err: |
| 386 | closesocket(fd); |
| 387 | return NULL; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 388 | } |
| 389 | |
| 390 | static void net_socket_connect(void *opaque) |
| 391 | { |
| 392 | NetSocketState *s = opaque; |
Stefan Hajnoczi | 863f678 | 2012-08-20 10:21:54 +0100 | [diff] [blame] | 393 | s->send_fn = net_socket_send; |
| 394 | net_socket_read_poll(s, true); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 395 | } |
| 396 | |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 397 | static NetClientInfo net_socket_info = { |
Eric Blake | f394b2e | 2016-07-13 21:50:23 -0600 | [diff] [blame] | 398 | .type = NET_CLIENT_DRIVER_SOCKET, |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 399 | .size = sizeof(NetSocketState), |
| 400 | .receive = net_socket_receive, |
| 401 | .cleanup = net_socket_cleanup, |
| 402 | }; |
| 403 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 404 | static NetSocketState *net_socket_fd_init_stream(NetClientState *peer, |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 405 | const char *model, |
| 406 | const char *name, |
| 407 | int fd, int is_connected) |
| 408 | { |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 409 | NetClientState *nc; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 410 | NetSocketState *s; |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 411 | |
Stefan Hajnoczi | ab5f3f8 | 2012-07-24 16:35:08 +0100 | [diff] [blame] | 412 | nc = qemu_new_net_client(&net_socket_info, peer, model, name); |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 413 | |
| 414 | snprintf(nc->info_str, sizeof(nc->info_str), "socket: fd=%d", fd); |
| 415 | |
| 416 | s = DO_UPCAST(NetSocketState, nc, nc); |
| 417 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 418 | s->fd = fd; |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 419 | s->listen_fd = -1; |
Zhang Chen | 16a3df4 | 2016-05-13 15:35:19 +0800 | [diff] [blame] | 420 | net_socket_rs_init(&s->rs, net_socket_rs_finalize); |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 421 | |
Stefan Hajnoczi | 20048d0 | 2013-02-27 15:05:47 +0100 | [diff] [blame] | 422 | /* Disable Nagle algorithm on TCP sockets to reduce latency */ |
| 423 | socket_set_nodelay(fd); |
| 424 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 425 | if (is_connected) { |
| 426 | net_socket_connect(s); |
| 427 | } else { |
| 428 | qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s); |
| 429 | } |
| 430 | return s; |
| 431 | } |
| 432 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 433 | static NetSocketState *net_socket_fd_init(NetClientState *peer, |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 434 | const char *model, const char *name, |
| 435 | int fd, int is_connected) |
| 436 | { |
| 437 | int so_type = -1, optlen=sizeof(so_type); |
| 438 | |
| 439 | if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, |
| 440 | (socklen_t *)&optlen)< 0) { |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 441 | fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", |
| 442 | fd); |
Stefan Hajnoczi | e5d1fca | 2011-12-07 15:01:49 +0000 | [diff] [blame] | 443 | closesocket(fd); |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 444 | return NULL; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 445 | } |
| 446 | switch(so_type) { |
| 447 | case SOCK_DGRAM: |
Stefan Hajnoczi | d33d93b | 2012-07-24 16:35:05 +0100 | [diff] [blame] | 448 | return net_socket_fd_init_dgram(peer, model, name, fd, is_connected); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 449 | case SOCK_STREAM: |
Stefan Hajnoczi | d33d93b | 2012-07-24 16:35:05 +0100 | [diff] [blame] | 450 | return net_socket_fd_init_stream(peer, model, name, fd, is_connected); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 451 | default: |
| 452 | /* who knows ... this could be a eg. a pty, do warn and continue as stream */ |
| 453 | fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd); |
Stefan Hajnoczi | d33d93b | 2012-07-24 16:35:05 +0100 | [diff] [blame] | 454 | return net_socket_fd_init_stream(peer, model, name, fd, is_connected); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 455 | } |
| 456 | return NULL; |
| 457 | } |
| 458 | |
| 459 | static void net_socket_accept(void *opaque) |
| 460 | { |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 461 | NetSocketState *s = opaque; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 462 | struct sockaddr_in saddr; |
| 463 | socklen_t len; |
| 464 | int fd; |
| 465 | |
| 466 | for(;;) { |
| 467 | len = sizeof(saddr); |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 468 | fd = qemu_accept(s->listen_fd, (struct sockaddr *)&saddr, &len); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 469 | if (fd < 0 && errno != EINTR) { |
| 470 | return; |
| 471 | } else if (fd >= 0) { |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 472 | qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 473 | break; |
| 474 | } |
| 475 | } |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 476 | |
| 477 | s->fd = fd; |
| 478 | s->nc.link_down = false; |
| 479 | net_socket_connect(s); |
| 480 | snprintf(s->nc.info_str, sizeof(s->nc.info_str), |
| 481 | "socket: connection from %s:%d", |
| 482 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 483 | } |
| 484 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 485 | static int net_socket_listen_init(NetClientState *peer, |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 486 | const char *model, |
| 487 | const char *name, |
| 488 | const char *host_str) |
| 489 | { |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 490 | NetClientState *nc; |
| 491 | NetSocketState *s; |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 492 | struct sockaddr_in saddr; |
| 493 | int fd, ret; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 494 | |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 495 | if (parse_host_port(&saddr, host_str) < 0) |
| 496 | return -1; |
| 497 | |
| 498 | fd = qemu_socket(PF_INET, SOCK_STREAM, 0); |
| 499 | if (fd < 0) { |
| 500 | perror("socket"); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 501 | return -1; |
| 502 | } |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 503 | qemu_set_nonblock(fd); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 504 | |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 505 | socket_set_fast_reuse(fd); |
| 506 | |
| 507 | ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 508 | if (ret < 0) { |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 509 | perror("bind"); |
| 510 | closesocket(fd); |
| 511 | return -1; |
| 512 | } |
| 513 | ret = listen(fd, 0); |
| 514 | if (ret < 0) { |
| 515 | perror("listen"); |
| 516 | closesocket(fd); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 517 | return -1; |
| 518 | } |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 519 | |
| 520 | nc = qemu_new_net_client(&net_socket_info, peer, model, name); |
| 521 | s = DO_UPCAST(NetSocketState, nc, nc); |
| 522 | s->fd = -1; |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 523 | s->listen_fd = fd; |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 524 | s->nc.link_down = true; |
Daniel P. Berrange | e79cd40 | 2016-11-04 15:46:33 +0000 | [diff] [blame] | 525 | net_socket_rs_init(&s->rs, net_socket_rs_finalize); |
Zhi Yong Wu | 011de2b | 2012-07-20 14:25:53 +0100 | [diff] [blame] | 526 | |
| 527 | qemu_set_fd_handler(s->listen_fd, net_socket_accept, NULL, s); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 528 | return 0; |
| 529 | } |
| 530 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 531 | static int net_socket_connect_init(NetClientState *peer, |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 532 | const char *model, |
| 533 | const char *name, |
| 534 | const char *host_str) |
| 535 | { |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 536 | NetSocketState *s; |
| 537 | int fd, connected, ret; |
| 538 | struct sockaddr_in saddr; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 539 | |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 540 | if (parse_host_port(&saddr, host_str) < 0) |
| 541 | return -1; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 542 | |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 543 | fd = qemu_socket(PF_INET, SOCK_STREAM, 0); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 544 | if (fd < 0) { |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 545 | perror("socket"); |
| 546 | return -1; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 547 | } |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 548 | qemu_set_nonblock(fd); |
Paolo Bonzini | 6160183 | 2016-08-30 14:04:12 +0200 | [diff] [blame] | 549 | |
Daniel P. Berrange | 6701e55 | 2017-05-05 17:23:05 +0100 | [diff] [blame] | 550 | connected = 0; |
| 551 | for(;;) { |
| 552 | ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
| 553 | if (ret < 0) { |
| 554 | if (errno == EINTR || errno == EWOULDBLOCK) { |
| 555 | /* continue */ |
| 556 | } else if (errno == EINPROGRESS || |
| 557 | errno == EALREADY || |
| 558 | errno == EINVAL) { |
| 559 | break; |
| 560 | } else { |
| 561 | perror("connect"); |
| 562 | closesocket(fd); |
| 563 | return -1; |
| 564 | } |
| 565 | } else { |
| 566 | connected = 1; |
| 567 | break; |
| 568 | } |
| 569 | } |
| 570 | s = net_socket_fd_init(peer, model, name, fd, connected); |
| 571 | if (!s) |
| 572 | return -1; |
| 573 | snprintf(s->nc.info_str, sizeof(s->nc.info_str), |
| 574 | "socket: connect to %s:%d", |
| 575 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 576 | return 0; |
| 577 | } |
| 578 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 579 | static int net_socket_mcast_init(NetClientState *peer, |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 580 | const char *model, |
| 581 | const char *name, |
Mike Ryan | 3a75e74 | 2010-12-01 11:16:47 -0800 | [diff] [blame] | 582 | const char *host_str, |
| 583 | const char *localaddr_str) |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 584 | { |
| 585 | NetSocketState *s; |
| 586 | int fd; |
| 587 | struct sockaddr_in saddr; |
Mike Ryan | 3a75e74 | 2010-12-01 11:16:47 -0800 | [diff] [blame] | 588 | struct in_addr localaddr, *param_localaddr; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 589 | |
| 590 | if (parse_host_port(&saddr, host_str) < 0) |
| 591 | return -1; |
| 592 | |
Mike Ryan | 3a75e74 | 2010-12-01 11:16:47 -0800 | [diff] [blame] | 593 | if (localaddr_str != NULL) { |
| 594 | if (inet_aton(localaddr_str, &localaddr) == 0) |
| 595 | return -1; |
| 596 | param_localaddr = &localaddr; |
| 597 | } else { |
| 598 | param_localaddr = NULL; |
| 599 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 600 | |
Mike Ryan | 3a75e74 | 2010-12-01 11:16:47 -0800 | [diff] [blame] | 601 | fd = net_socket_mcast_create(&saddr, param_localaddr); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 602 | if (fd < 0) |
Stefan Hajnoczi | 842480d | 2011-12-07 15:01:48 +0000 | [diff] [blame] | 603 | return -1; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 604 | |
Stefan Hajnoczi | d33d93b | 2012-07-24 16:35:05 +0100 | [diff] [blame] | 605 | s = net_socket_fd_init(peer, model, name, fd, 0); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 606 | if (!s) |
| 607 | return -1; |
| 608 | |
| 609 | s->dgram_dst = saddr; |
| 610 | |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame] | 611 | snprintf(s->nc.info_str, sizeof(s->nc.info_str), |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 612 | "socket: mcast=%s:%d", |
| 613 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 614 | return 0; |
| 615 | |
| 616 | } |
| 617 | |
Stefan Hajnoczi | 4e68f7a | 2012-07-24 16:35:13 +0100 | [diff] [blame] | 618 | static int net_socket_udp_init(NetClientState *peer, |
Benjamin | 0e0e7fa | 2012-01-11 09:20:54 +0900 | [diff] [blame] | 619 | const char *model, |
| 620 | const char *name, |
| 621 | const char *rhost, |
| 622 | const char *lhost) |
| 623 | { |
| 624 | NetSocketState *s; |
Sebastian Ottlik | bcbe92f | 2013-10-02 12:23:14 +0200 | [diff] [blame] | 625 | int fd, ret; |
Benjamin | 0e0e7fa | 2012-01-11 09:20:54 +0900 | [diff] [blame] | 626 | struct sockaddr_in laddr, raddr; |
| 627 | |
| 628 | if (parse_host_port(&laddr, lhost) < 0) { |
| 629 | return -1; |
| 630 | } |
| 631 | |
| 632 | if (parse_host_port(&raddr, rhost) < 0) { |
| 633 | return -1; |
| 634 | } |
| 635 | |
| 636 | fd = qemu_socket(PF_INET, SOCK_DGRAM, 0); |
| 637 | if (fd < 0) { |
| 638 | perror("socket(PF_INET, SOCK_DGRAM)"); |
| 639 | return -1; |
| 640 | } |
Sebastian Ottlik | bcbe92f | 2013-10-02 12:23:14 +0200 | [diff] [blame] | 641 | |
| 642 | ret = socket_set_fast_reuse(fd); |
Benjamin | 0e0e7fa | 2012-01-11 09:20:54 +0900 | [diff] [blame] | 643 | if (ret < 0) { |
Benjamin | 0e0e7fa | 2012-01-11 09:20:54 +0900 | [diff] [blame] | 644 | closesocket(fd); |
| 645 | return -1; |
| 646 | } |
| 647 | ret = bind(fd, (struct sockaddr *)&laddr, sizeof(laddr)); |
| 648 | if (ret < 0) { |
| 649 | perror("bind"); |
| 650 | closesocket(fd); |
| 651 | return -1; |
| 652 | } |
Stefan Hajnoczi | fc13fa0 | 2013-03-27 10:10:44 +0100 | [diff] [blame] | 653 | qemu_set_nonblock(fd); |
Benjamin | 0e0e7fa | 2012-01-11 09:20:54 +0900 | [diff] [blame] | 654 | |
Stefan Hajnoczi | d33d93b | 2012-07-24 16:35:05 +0100 | [diff] [blame] | 655 | s = net_socket_fd_init(peer, model, name, fd, 0); |
Benjamin | 0e0e7fa | 2012-01-11 09:20:54 +0900 | [diff] [blame] | 656 | if (!s) { |
| 657 | return -1; |
| 658 | } |
| 659 | |
| 660 | s->dgram_dst = raddr; |
| 661 | |
| 662 | snprintf(s->nc.info_str, sizeof(s->nc.info_str), |
| 663 | "socket: udp=%s:%d", |
| 664 | inet_ntoa(raddr.sin_addr), ntohs(raddr.sin_port)); |
| 665 | return 0; |
| 666 | } |
| 667 | |
Kővágó, Zoltán | cebea51 | 2016-07-13 21:50:12 -0600 | [diff] [blame] | 668 | int net_init_socket(const Netdev *netdev, const char *name, |
Markus Armbruster | a30ecde | 2015-05-15 13:58:50 +0200 | [diff] [blame] | 669 | NetClientState *peer, Error **errp) |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 670 | { |
Markus Armbruster | a30ecde | 2015-05-15 13:58:50 +0200 | [diff] [blame] | 671 | /* FIXME error_setg(errp, ...) on failure */ |
Markus Armbruster | 1677f4c | 2015-02-09 14:03:19 +0100 | [diff] [blame] | 672 | Error *err = NULL; |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 673 | const NetdevSocketOptions *sock; |
| 674 | |
Eric Blake | f394b2e | 2016-07-13 21:50:23 -0600 | [diff] [blame] | 675 | assert(netdev->type == NET_CLIENT_DRIVER_SOCKET); |
| 676 | sock = &netdev->u.socket; |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 677 | |
| 678 | if (sock->has_fd + sock->has_listen + sock->has_connect + sock->has_mcast + |
| 679 | sock->has_udp != 1) { |
| 680 | error_report("exactly one of fd=, listen=, connect=, mcast= or udp=" |
| 681 | " is required"); |
| 682 | return -1; |
| 683 | } |
| 684 | |
| 685 | if (sock->has_localaddr && !sock->has_mcast && !sock->has_udp) { |
| 686 | error_report("localaddr= is only valid with mcast= or udp="); |
| 687 | return -1; |
| 688 | } |
| 689 | |
| 690 | if (sock->has_fd) { |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 691 | int fd; |
| 692 | |
Markus Armbruster | 1677f4c | 2015-02-09 14:03:19 +0100 | [diff] [blame] | 693 | fd = monitor_fd_param(cur_mon, sock->fd, &err); |
Stefan Hajnoczi | fc13fa0 | 2013-03-27 10:10:44 +0100 | [diff] [blame] | 694 | if (fd == -1) { |
Markus Armbruster | 1677f4c | 2015-02-09 14:03:19 +0100 | [diff] [blame] | 695 | error_report_err(err); |
Stefan Hajnoczi | fc13fa0 | 2013-03-27 10:10:44 +0100 | [diff] [blame] | 696 | return -1; |
| 697 | } |
| 698 | qemu_set_nonblock(fd); |
| 699 | if (!net_socket_fd_init(peer, "socket", name, fd, 1)) { |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 700 | return -1; |
| 701 | } |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 702 | return 0; |
| 703 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 704 | |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 705 | if (sock->has_listen) { |
Stefan Hajnoczi | d33d93b | 2012-07-24 16:35:05 +0100 | [diff] [blame] | 706 | if (net_socket_listen_init(peer, "socket", name, sock->listen) == -1) { |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 707 | return -1; |
| 708 | } |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 709 | return 0; |
| 710 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 711 | |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 712 | if (sock->has_connect) { |
Stefan Hajnoczi | d33d93b | 2012-07-24 16:35:05 +0100 | [diff] [blame] | 713 | if (net_socket_connect_init(peer, "socket", name, sock->connect) == |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 714 | -1) { |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 715 | return -1; |
| 716 | } |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 717 | return 0; |
| 718 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 719 | |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 720 | if (sock->has_mcast) { |
| 721 | /* if sock->localaddr is missing, it has been initialized to "all bits |
| 722 | * zero" */ |
Stefan Hajnoczi | d33d93b | 2012-07-24 16:35:05 +0100 | [diff] [blame] | 723 | if (net_socket_mcast_init(peer, "socket", name, sock->mcast, |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 724 | sock->localaddr) == -1) { |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 725 | return -1; |
| 726 | } |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 727 | return 0; |
| 728 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 729 | |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 730 | assert(sock->has_udp); |
| 731 | if (!sock->has_localaddr) { |
| 732 | error_report("localaddr= is mandatory with udp="); |
| 733 | return -1; |
| 734 | } |
Lei Li | f0e3ac7 | 2012-11-01 17:39:55 +0800 | [diff] [blame] | 735 | if (net_socket_udp_init(peer, "socket", name, sock->udp, sock->localaddr) == |
Laszlo Ersek | bef8e8f | 2012-07-17 16:17:17 +0200 | [diff] [blame] | 736 | -1) { |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 737 | return -1; |
| 738 | } |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 739 | return 0; |
| 740 | } |