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/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <signal.h> |
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#include <time.h> |
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#include <errno.h> |
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#include <sys/time.h> |
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#include <zlib.h> |
31 |
|
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/* Needed early for HOST_BSD etc. */
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#include "config-host.h" |
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|
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#ifndef _WIN32
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#include <sys/times.h> |
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#include <sys/wait.h> |
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#include <termios.h> |
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#include <sys/mman.h> |
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#include <sys/ioctl.h> |
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#include <sys/resource.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <net/if.h> |
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#ifdef __NetBSD__
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#include <net/if_tap.h> |
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#endif
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#ifdef __linux__
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#include <linux/if_tun.h> |
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#endif
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#include <arpa/inet.h> |
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#include <dirent.h> |
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#include <netdb.h> |
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#include <sys/select.h> |
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#ifdef HOST_BSD
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#include <sys/stat.h> |
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#if defined(__FreeBSD__) || defined(__DragonFly__)
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#include <libutil.h> |
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#else
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#include <util.h> |
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#endif
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#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
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#include <freebsd/stdlib.h> |
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#else
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#ifdef __linux__
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#include <pty.h> |
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#include <malloc.h> |
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#include <linux/rtc.h> |
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|
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/* For the benefit of older linux systems which don't supply it,
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we use a local copy of hpet.h. */
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/* #include <linux/hpet.h> */
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#include "hpet.h" |
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|
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#include <linux/ppdev.h> |
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#include <linux/parport.h> |
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#endif
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#ifdef __sun__
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#include <sys/stat.h> |
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#include <sys/ethernet.h> |
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#include <sys/sockio.h> |
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#include <netinet/arp.h> |
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#include <netinet/in.h> |
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#include <netinet/in_systm.h> |
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#include <netinet/ip.h> |
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#include <netinet/ip_icmp.h> // must come after ip.h |
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#include <netinet/udp.h> |
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#include <netinet/tcp.h> |
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#include <net/if.h> |
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#include <syslog.h> |
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#include <stropts.h> |
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#endif
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#endif
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#endif
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|
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#if defined(__OpenBSD__)
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#include <util.h> |
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#endif
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|
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#if defined(CONFIG_VDE)
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#include <libvdeplug.h> |
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#endif
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|
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#ifdef _WIN32
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#include <windows.h> |
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#include <malloc.h> |
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#include <sys/timeb.h> |
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#include <mmsystem.h> |
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#define getopt_long_only getopt_long
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#define memalign(align, size) malloc(size)
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#endif
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#include "qemu-common.h" |
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#include "net.h" |
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#include "monitor.h" |
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#include "sysemu.h" |
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#include "qemu-timer.h" |
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#include "qemu-char.h" |
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#include "audio/audio.h" |
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#include "qemu_socket.h" |
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#include "qemu-log.h" |
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#if defined(CONFIG_SLIRP)
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#include "libslirp.h" |
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#endif
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static VLANState *first_vlan;
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/***********************************************************/
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/* network device redirectors */
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#if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
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static void hex_dump(FILE *f, const uint8_t *buf, int size) |
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{ |
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int len, i, j, c;
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for(i=0;i<size;i+=16) { |
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len = size - i; |
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if (len > 16) |
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len = 16;
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fprintf(f, "%08x ", i);
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for(j=0;j<16;j++) { |
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if (j < len)
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fprintf(f, " %02x", buf[i+j]);
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else
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fprintf(f, " ");
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} |
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fprintf(f, " ");
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for(j=0;j<len;j++) { |
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c = buf[i+j]; |
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if (c < ' ' || c > '~') |
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c = '.';
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fprintf(f, "%c", c);
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} |
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fprintf(f, "\n");
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} |
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} |
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#endif
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static int parse_macaddr(uint8_t *macaddr, const char *p) |
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{ |
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int i;
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char *last_char;
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long int offset; |
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errno = 0;
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offset = strtol(p, &last_char, 0);
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if (0 == errno && '\0' == *last_char && |
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offset >= 0 && offset <= 0xFFFFFF) { |
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macaddr[3] = (offset & 0xFF0000) >> 16; |
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macaddr[4] = (offset & 0xFF00) >> 8; |
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macaddr[5] = offset & 0xFF; |
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return 0; |
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} else {
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for(i = 0; i < 6; i++) { |
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macaddr[i] = strtol(p, (char **)&p, 16); |
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if (i == 5) { |
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if (*p != '\0') |
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return -1; |
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} else {
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if (*p != ':' && *p != '-') |
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return -1; |
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p++; |
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} |
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} |
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return 0; |
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} |
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return -1; |
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} |
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static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) |
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{ |
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const char *p, *p1; |
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int len;
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p = *pp; |
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p1 = strchr(p, sep); |
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if (!p1)
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return -1; |
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len = p1 - p; |
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p1++; |
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if (buf_size > 0) { |
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if (len > buf_size - 1) |
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len = buf_size - 1;
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memcpy(buf, p, len); |
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buf[len] = '\0';
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} |
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*pp = p1; |
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return 0; |
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} |
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int parse_host_src_port(struct sockaddr_in *haddr, |
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struct sockaddr_in *saddr,
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const char *input_str) |
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{ |
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char *str = strdup(input_str);
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char *host_str = str;
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char *src_str;
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const char *src_str2; |
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char *ptr;
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/*
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* Chop off any extra arguments at the end of the string which
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* would start with a comma, then fill in the src port information
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* if it was provided else use the "any address" and "any port".
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*/
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if ((ptr = strchr(str,','))) |
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*ptr = '\0';
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if ((src_str = strchr(input_str,'@'))) { |
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*src_str = '\0';
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src_str++; |
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} |
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if (parse_host_port(haddr, host_str) < 0) |
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goto fail;
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src_str2 = src_str; |
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if (!src_str || *src_str == '\0') |
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src_str2 = ":0";
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if (parse_host_port(saddr, src_str2) < 0) |
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goto fail;
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free(str); |
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return(0); |
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fail:
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free(str); |
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return -1; |
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} |
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int parse_host_port(struct sockaddr_in *saddr, const char *str) |
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{ |
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char buf[512]; |
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struct hostent *he;
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const char *p, *r; |
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int port;
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p = str; |
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if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
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return -1; |
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saddr->sin_family = AF_INET; |
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if (buf[0] == '\0') { |
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saddr->sin_addr.s_addr = 0;
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} else {
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if (qemu_isdigit(buf[0])) { |
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if (!inet_aton(buf, &saddr->sin_addr))
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return -1; |
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} else {
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if ((he = gethostbyname(buf)) == NULL) |
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return - 1; |
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saddr->sin_addr = *(struct in_addr *)he->h_addr;
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} |
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} |
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port = strtol(p, (char **)&r, 0); |
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if (r == p)
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return -1; |
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saddr->sin_port = htons(port); |
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return 0; |
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} |
283 |
|
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#if !defined(_WIN32) && 0 |
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static int parse_unix_path(struct sockaddr_un *uaddr, const char *str) |
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{ |
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const char *p; |
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int len;
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len = MIN(108, strlen(str));
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p = strchr(str, ',');
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if (p)
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len = MIN(len, p - str); |
294 |
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memset(uaddr, 0, sizeof(*uaddr)); |
296 |
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uaddr->sun_family = AF_UNIX; |
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memcpy(uaddr->sun_path, str, len); |
299 |
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return 0; |
301 |
} |
302 |
#endif
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|
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void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]) |
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{ |
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snprintf(vc->info_str, sizeof(vc->info_str),
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"model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
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vc->model, |
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macaddr[0], macaddr[1], macaddr[2], |
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macaddr[3], macaddr[4], macaddr[5]); |
311 |
} |
312 |
|
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static char *assign_name(VLANClientState *vc1, const char *model) |
314 |
{ |
315 |
VLANState *vlan; |
316 |
char buf[256]; |
317 |
int id = 0; |
318 |
|
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for (vlan = first_vlan; vlan; vlan = vlan->next) {
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VLANClientState *vc; |
321 |
|
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for (vc = vlan->first_client; vc; vc = vc->next)
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if (vc != vc1 && strcmp(vc->model, model) == 0) |
324 |
id++; |
325 |
} |
326 |
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snprintf(buf, sizeof(buf), "%s.%d", model, id); |
328 |
|
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return strdup(buf);
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} |
331 |
|
332 |
VLANClientState *qemu_new_vlan_client(VLANState *vlan, |
333 |
const char *model, |
334 |
const char *name, |
335 |
IOReadHandler *fd_read, |
336 |
IOCanRWHandler *fd_can_read, |
337 |
NetCleanup *cleanup, |
338 |
void *opaque)
|
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{ |
340 |
VLANClientState *vc, **pvc; |
341 |
vc = qemu_mallocz(sizeof(VLANClientState));
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vc->model = strdup(model); |
343 |
if (name)
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vc->name = strdup(name); |
345 |
else
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vc->name = assign_name(vc, model); |
347 |
vc->fd_read = fd_read; |
348 |
vc->fd_can_read = fd_can_read; |
349 |
vc->cleanup = cleanup; |
350 |
vc->opaque = opaque; |
351 |
vc->vlan = vlan; |
352 |
|
353 |
vc->next = NULL;
|
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pvc = &vlan->first_client; |
355 |
while (*pvc != NULL) |
356 |
pvc = &(*pvc)->next; |
357 |
*pvc = vc; |
358 |
return vc;
|
359 |
} |
360 |
|
361 |
void qemu_del_vlan_client(VLANClientState *vc)
|
362 |
{ |
363 |
VLANClientState **pvc = &vc->vlan->first_client; |
364 |
|
365 |
while (*pvc != NULL) |
366 |
if (*pvc == vc) {
|
367 |
*pvc = vc->next; |
368 |
if (vc->cleanup) {
|
369 |
vc->cleanup(vc); |
370 |
} |
371 |
free(vc->name); |
372 |
free(vc->model); |
373 |
qemu_free(vc); |
374 |
break;
|
375 |
} else
|
376 |
pvc = &(*pvc)->next; |
377 |
} |
378 |
|
379 |
VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque)
|
380 |
{ |
381 |
VLANClientState **pvc = &vlan->first_client; |
382 |
|
383 |
while (*pvc != NULL) |
384 |
if ((*pvc)->opaque == opaque)
|
385 |
return *pvc;
|
386 |
else
|
387 |
pvc = &(*pvc)->next; |
388 |
|
389 |
return NULL; |
390 |
} |
391 |
|
392 |
int qemu_can_send_packet(VLANClientState *vc1)
|
393 |
{ |
394 |
VLANState *vlan = vc1->vlan; |
395 |
VLANClientState *vc; |
396 |
|
397 |
for(vc = vlan->first_client; vc != NULL; vc = vc->next) { |
398 |
if (vc != vc1) {
|
399 |
if (vc->fd_can_read && vc->fd_can_read(vc->opaque))
|
400 |
return 1; |
401 |
} |
402 |
} |
403 |
return 0; |
404 |
} |
405 |
|
406 |
static void |
407 |
qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size) |
408 |
{ |
409 |
VLANClientState *vc; |
410 |
|
411 |
for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) { |
412 |
if (vc != sender && !vc->link_down) {
|
413 |
vc->fd_read(vc->opaque, buf, size); |
414 |
} |
415 |
} |
416 |
} |
417 |
|
418 |
void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size) |
419 |
{ |
420 |
VLANState *vlan = vc->vlan; |
421 |
VLANPacket *packet; |
422 |
|
423 |
if (vc->link_down)
|
424 |
return;
|
425 |
|
426 |
#ifdef DEBUG_NET
|
427 |
printf("vlan %d send:\n", vlan->id);
|
428 |
hex_dump(stdout, buf, size); |
429 |
#endif
|
430 |
if (vlan->delivering) {
|
431 |
packet = qemu_malloc(sizeof(VLANPacket) + size);
|
432 |
packet->next = vlan->send_queue; |
433 |
packet->sender = vc; |
434 |
packet->size = size; |
435 |
memcpy(packet->data, buf, size); |
436 |
vlan->send_queue = packet; |
437 |
} else {
|
438 |
vlan->delivering = 1;
|
439 |
qemu_deliver_packet(vc, buf, size); |
440 |
while ((packet = vlan->send_queue) != NULL) { |
441 |
qemu_deliver_packet(packet->sender, packet->data, packet->size); |
442 |
vlan->send_queue = packet->next; |
443 |
qemu_free(packet); |
444 |
} |
445 |
vlan->delivering = 0;
|
446 |
} |
447 |
} |
448 |
|
449 |
static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, |
450 |
int iovcnt)
|
451 |
{ |
452 |
uint8_t buffer[4096];
|
453 |
size_t offset = 0;
|
454 |
int i;
|
455 |
|
456 |
for (i = 0; i < iovcnt; i++) { |
457 |
size_t len; |
458 |
|
459 |
len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
|
460 |
memcpy(buffer + offset, iov[i].iov_base, len); |
461 |
offset += len; |
462 |
} |
463 |
|
464 |
vc->fd_read(vc->opaque, buffer, offset); |
465 |
|
466 |
return offset;
|
467 |
} |
468 |
|
469 |
static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) |
470 |
{ |
471 |
size_t offset = 0;
|
472 |
int i;
|
473 |
|
474 |
for (i = 0; i < iovcnt; i++) |
475 |
offset += iov[i].iov_len; |
476 |
return offset;
|
477 |
} |
478 |
|
479 |
ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov, |
480 |
int iovcnt)
|
481 |
{ |
482 |
VLANState *vlan = vc1->vlan; |
483 |
VLANClientState *vc; |
484 |
ssize_t max_len = 0;
|
485 |
|
486 |
if (vc1->link_down)
|
487 |
return calc_iov_length(iov, iovcnt);
|
488 |
|
489 |
for (vc = vlan->first_client; vc != NULL; vc = vc->next) { |
490 |
ssize_t len = 0;
|
491 |
|
492 |
if (vc == vc1)
|
493 |
continue;
|
494 |
|
495 |
if (vc->link_down)
|
496 |
len = calc_iov_length(iov, iovcnt); |
497 |
if (vc->fd_readv)
|
498 |
len = vc->fd_readv(vc->opaque, iov, iovcnt); |
499 |
else if (vc->fd_read) |
500 |
len = vc_sendv_compat(vc, iov, iovcnt); |
501 |
|
502 |
max_len = MAX(max_len, len); |
503 |
} |
504 |
|
505 |
return max_len;
|
506 |
} |
507 |
|
508 |
#if defined(CONFIG_SLIRP)
|
509 |
|
510 |
/* slirp network adapter */
|
511 |
|
512 |
static int slirp_inited; |
513 |
static int slirp_restrict; |
514 |
static char *slirp_ip; |
515 |
static VLANClientState *slirp_vc;
|
516 |
|
517 |
int slirp_can_output(void) |
518 |
{ |
519 |
return !slirp_vc || qemu_can_send_packet(slirp_vc);
|
520 |
} |
521 |
|
522 |
void slirp_output(const uint8_t *pkt, int pkt_len) |
523 |
{ |
524 |
#ifdef DEBUG_SLIRP
|
525 |
printf("slirp output:\n");
|
526 |
hex_dump(stdout, pkt, pkt_len); |
527 |
#endif
|
528 |
if (!slirp_vc)
|
529 |
return;
|
530 |
qemu_send_packet(slirp_vc, pkt, pkt_len); |
531 |
} |
532 |
|
533 |
int slirp_is_inited(void) |
534 |
{ |
535 |
return slirp_inited;
|
536 |
} |
537 |
|
538 |
static void slirp_receive(void *opaque, const uint8_t *buf, int size) |
539 |
{ |
540 |
#ifdef DEBUG_SLIRP
|
541 |
printf("slirp input:\n");
|
542 |
hex_dump(stdout, buf, size); |
543 |
#endif
|
544 |
slirp_input(buf, size); |
545 |
} |
546 |
|
547 |
static int slirp_in_use; |
548 |
|
549 |
static void net_slirp_cleanup(VLANClientState *vc) |
550 |
{ |
551 |
slirp_in_use = 0;
|
552 |
} |
553 |
|
554 |
static int net_slirp_init(VLANState *vlan, const char *model, const char *name) |
555 |
{ |
556 |
if (slirp_in_use) {
|
557 |
/* slirp only supports a single instance so far */
|
558 |
return -1; |
559 |
} |
560 |
if (!slirp_inited) {
|
561 |
slirp_inited = 1;
|
562 |
slirp_init(slirp_restrict, slirp_ip); |
563 |
} |
564 |
slirp_vc = qemu_new_vlan_client(vlan, model, name, |
565 |
slirp_receive, NULL, net_slirp_cleanup, NULL); |
566 |
slirp_vc->info_str[0] = '\0'; |
567 |
slirp_in_use = 1;
|
568 |
return 0; |
569 |
} |
570 |
|
571 |
void net_slirp_redir(Monitor *mon, const char *redir_str) |
572 |
{ |
573 |
int is_udp;
|
574 |
char buf[256], *r; |
575 |
const char *p, *errmsg; |
576 |
struct in_addr guest_addr;
|
577 |
int host_port, guest_port;
|
578 |
|
579 |
if (!slirp_inited) {
|
580 |
slirp_inited = 1;
|
581 |
slirp_init(slirp_restrict, slirp_ip); |
582 |
} |
583 |
|
584 |
p = redir_str; |
585 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
586 |
goto fail_syntax;
|
587 |
if (!strcmp(buf, "tcp") || buf[0] == '\0') { |
588 |
is_udp = 0;
|
589 |
} else if (!strcmp(buf, "udp")) { |
590 |
is_udp = 1;
|
591 |
} else {
|
592 |
goto fail_syntax;
|
593 |
} |
594 |
|
595 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
596 |
goto fail_syntax;
|
597 |
host_port = strtol(buf, &r, 0);
|
598 |
if (r == buf)
|
599 |
goto fail_syntax;
|
600 |
|
601 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
602 |
goto fail_syntax;
|
603 |
if (buf[0] == '\0') { |
604 |
pstrcpy(buf, sizeof(buf), "10.0.2.15"); |
605 |
} |
606 |
if (!inet_aton(buf, &guest_addr))
|
607 |
goto fail_syntax;
|
608 |
|
609 |
guest_port = strtol(p, &r, 0);
|
610 |
if (r == p)
|
611 |
goto fail_syntax;
|
612 |
|
613 |
if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) { |
614 |
errmsg = "could not set up redirection\n";
|
615 |
goto fail;
|
616 |
} |
617 |
return;
|
618 |
|
619 |
fail_syntax:
|
620 |
errmsg = "invalid redirection format\n";
|
621 |
fail:
|
622 |
if (mon) {
|
623 |
monitor_printf(mon, "%s", errmsg);
|
624 |
} else {
|
625 |
fprintf(stderr, "qemu: %s", errmsg);
|
626 |
exit(1);
|
627 |
} |
628 |
} |
629 |
|
630 |
#ifndef _WIN32
|
631 |
|
632 |
static char smb_dir[1024]; |
633 |
|
634 |
static void erase_dir(char *dir_name) |
635 |
{ |
636 |
DIR *d; |
637 |
struct dirent *de;
|
638 |
char filename[1024]; |
639 |
|
640 |
/* erase all the files in the directory */
|
641 |
if ((d = opendir(dir_name)) != NULL) { |
642 |
for(;;) {
|
643 |
de = readdir(d); |
644 |
if (!de)
|
645 |
break;
|
646 |
if (strcmp(de->d_name, ".") != 0 && |
647 |
strcmp(de->d_name, "..") != 0) { |
648 |
snprintf(filename, sizeof(filename), "%s/%s", |
649 |
smb_dir, de->d_name); |
650 |
if (unlink(filename) != 0) /* is it a directory? */ |
651 |
erase_dir(filename); |
652 |
} |
653 |
} |
654 |
closedir(d); |
655 |
rmdir(dir_name); |
656 |
} |
657 |
} |
658 |
|
659 |
/* automatic user mode samba server configuration */
|
660 |
static void smb_exit(void) |
661 |
{ |
662 |
erase_dir(smb_dir); |
663 |
} |
664 |
|
665 |
/* automatic user mode samba server configuration */
|
666 |
void net_slirp_smb(const char *exported_dir) |
667 |
{ |
668 |
char smb_conf[1024]; |
669 |
char smb_cmdline[1024]; |
670 |
FILE *f; |
671 |
|
672 |
if (!slirp_inited) {
|
673 |
slirp_inited = 1;
|
674 |
slirp_init(slirp_restrict, slirp_ip); |
675 |
} |
676 |
|
677 |
/* XXX: better tmp dir construction */
|
678 |
snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid()); |
679 |
if (mkdir(smb_dir, 0700) < 0) { |
680 |
fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
|
681 |
exit(1);
|
682 |
} |
683 |
snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf"); |
684 |
|
685 |
f = fopen(smb_conf, "w");
|
686 |
if (!f) {
|
687 |
fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
|
688 |
exit(1);
|
689 |
} |
690 |
fprintf(f, |
691 |
"[global]\n"
|
692 |
"private dir=%s\n"
|
693 |
"smb ports=0\n"
|
694 |
"socket address=127.0.0.1\n"
|
695 |
"pid directory=%s\n"
|
696 |
"lock directory=%s\n"
|
697 |
"log file=%s/log.smbd\n"
|
698 |
"smb passwd file=%s/smbpasswd\n"
|
699 |
"security = share\n"
|
700 |
"[qemu]\n"
|
701 |
"path=%s\n"
|
702 |
"read only=no\n"
|
703 |
"guest ok=yes\n",
|
704 |
smb_dir, |
705 |
smb_dir, |
706 |
smb_dir, |
707 |
smb_dir, |
708 |
smb_dir, |
709 |
exported_dir |
710 |
); |
711 |
fclose(f); |
712 |
atexit(smb_exit); |
713 |
|
714 |
snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s", |
715 |
SMBD_COMMAND, smb_conf); |
716 |
|
717 |
slirp_add_exec(0, smb_cmdline, 4, 139); |
718 |
} |
719 |
|
720 |
#endif /* !defined(_WIN32) */ |
721 |
void do_info_slirp(Monitor *mon)
|
722 |
{ |
723 |
slirp_stats(); |
724 |
} |
725 |
|
726 |
struct VMChannel {
|
727 |
CharDriverState *hd; |
728 |
int port;
|
729 |
}; |
730 |
|
731 |
static int vmchannel_can_read(void *opaque) |
732 |
{ |
733 |
struct VMChannel *vmc = (struct VMChannel*)opaque; |
734 |
return slirp_socket_can_recv(4, vmc->port); |
735 |
} |
736 |
|
737 |
static void vmchannel_read(void *opaque, const uint8_t *buf, int size) |
738 |
{ |
739 |
struct VMChannel *vmc = (struct VMChannel*)opaque; |
740 |
slirp_socket_recv(4, vmc->port, buf, size);
|
741 |
} |
742 |
|
743 |
#endif /* CONFIG_SLIRP */ |
744 |
|
745 |
#if !defined(_WIN32)
|
746 |
|
747 |
typedef struct TAPState { |
748 |
VLANClientState *vc; |
749 |
int fd;
|
750 |
char down_script[1024]; |
751 |
char down_script_arg[128]; |
752 |
} TAPState; |
753 |
|
754 |
static int launch_script(const char *setup_script, const char *ifname, int fd); |
755 |
|
756 |
static ssize_t tap_receive_iov(void *opaque, const struct iovec *iov, |
757 |
int iovcnt)
|
758 |
{ |
759 |
TAPState *s = opaque; |
760 |
ssize_t len; |
761 |
|
762 |
do {
|
763 |
len = writev(s->fd, iov, iovcnt); |
764 |
} while (len == -1 && (errno == EINTR || errno == EAGAIN)); |
765 |
|
766 |
return len;
|
767 |
} |
768 |
|
769 |
static void tap_receive(void *opaque, const uint8_t *buf, int size) |
770 |
{ |
771 |
TAPState *s = opaque; |
772 |
int ret;
|
773 |
for(;;) {
|
774 |
ret = write(s->fd, buf, size); |
775 |
if (ret < 0 && (errno == EINTR || errno == EAGAIN)) { |
776 |
} else {
|
777 |
break;
|
778 |
} |
779 |
} |
780 |
} |
781 |
|
782 |
static void tap_send(void *opaque) |
783 |
{ |
784 |
TAPState *s = opaque; |
785 |
uint8_t buf[4096];
|
786 |
int size;
|
787 |
|
788 |
#ifdef __sun__
|
789 |
struct strbuf sbuf;
|
790 |
int f = 0; |
791 |
sbuf.maxlen = sizeof(buf);
|
792 |
sbuf.buf = (char *)buf;
|
793 |
size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1; |
794 |
#else
|
795 |
size = read(s->fd, buf, sizeof(buf));
|
796 |
#endif
|
797 |
if (size > 0) { |
798 |
qemu_send_packet(s->vc, buf, size); |
799 |
} |
800 |
} |
801 |
|
802 |
static void tap_cleanup(VLANClientState *vc) |
803 |
{ |
804 |
TAPState *s = vc->opaque; |
805 |
|
806 |
if (s->down_script[0]) |
807 |
launch_script(s->down_script, s->down_script_arg, s->fd); |
808 |
|
809 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
810 |
close(s->fd); |
811 |
qemu_free(s); |
812 |
} |
813 |
|
814 |
/* fd support */
|
815 |
|
816 |
static TAPState *net_tap_fd_init(VLANState *vlan,
|
817 |
const char *model, |
818 |
const char *name, |
819 |
int fd)
|
820 |
{ |
821 |
TAPState *s; |
822 |
|
823 |
s = qemu_mallocz(sizeof(TAPState));
|
824 |
s->fd = fd; |
825 |
s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive, |
826 |
NULL, tap_cleanup, s);
|
827 |
s->vc->fd_readv = tap_receive_iov; |
828 |
qemu_set_fd_handler(s->fd, tap_send, NULL, s);
|
829 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd); |
830 |
return s;
|
831 |
} |
832 |
|
833 |
#if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
|
834 |
static int tap_open(char *ifname, int ifname_size) |
835 |
{ |
836 |
int fd;
|
837 |
char *dev;
|
838 |
struct stat s;
|
839 |
|
840 |
TFR(fd = open("/dev/tap", O_RDWR));
|
841 |
if (fd < 0) { |
842 |
fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
|
843 |
return -1; |
844 |
} |
845 |
|
846 |
fstat(fd, &s); |
847 |
dev = devname(s.st_rdev, S_IFCHR); |
848 |
pstrcpy(ifname, ifname_size, dev); |
849 |
|
850 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
851 |
return fd;
|
852 |
} |
853 |
#elif defined(__sun__)
|
854 |
#define TUNNEWPPA (('T'<<16) | 0x0001) |
855 |
/*
|
856 |
* Allocate TAP device, returns opened fd.
|
857 |
* Stores dev name in the first arg(must be large enough).
|
858 |
*/
|
859 |
static int tap_alloc(char *dev, size_t dev_size) |
860 |
{ |
861 |
int tap_fd, if_fd, ppa = -1; |
862 |
static int ip_fd = 0; |
863 |
char *ptr;
|
864 |
|
865 |
static int arp_fd = 0; |
866 |
int ip_muxid, arp_muxid;
|
867 |
struct strioctl strioc_if, strioc_ppa;
|
868 |
int link_type = I_PLINK;;
|
869 |
struct lifreq ifr;
|
870 |
char actual_name[32] = ""; |
871 |
|
872 |
memset(&ifr, 0x0, sizeof(ifr)); |
873 |
|
874 |
if( *dev ){
|
875 |
ptr = dev; |
876 |
while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++; |
877 |
ppa = atoi(ptr); |
878 |
} |
879 |
|
880 |
/* Check if IP device was opened */
|
881 |
if( ip_fd )
|
882 |
close(ip_fd); |
883 |
|
884 |
TFR(ip_fd = open("/dev/udp", O_RDWR, 0)); |
885 |
if (ip_fd < 0) { |
886 |
syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
|
887 |
return -1; |
888 |
} |
889 |
|
890 |
TFR(tap_fd = open("/dev/tap", O_RDWR, 0)); |
891 |
if (tap_fd < 0) { |
892 |
syslog(LOG_ERR, "Can't open /dev/tap");
|
893 |
return -1; |
894 |
} |
895 |
|
896 |
/* Assign a new PPA and get its unit number. */
|
897 |
strioc_ppa.ic_cmd = TUNNEWPPA; |
898 |
strioc_ppa.ic_timout = 0;
|
899 |
strioc_ppa.ic_len = sizeof(ppa);
|
900 |
strioc_ppa.ic_dp = (char *)&ppa;
|
901 |
if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0) |
902 |
syslog (LOG_ERR, "Can't assign new interface");
|
903 |
|
904 |
TFR(if_fd = open("/dev/tap", O_RDWR, 0)); |
905 |
if (if_fd < 0) { |
906 |
syslog(LOG_ERR, "Can't open /dev/tap (2)");
|
907 |
return -1; |
908 |
} |
909 |
if(ioctl(if_fd, I_PUSH, "ip") < 0){ |
910 |
syslog(LOG_ERR, "Can't push IP module");
|
911 |
return -1; |
912 |
} |
913 |
|
914 |
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0) |
915 |
syslog(LOG_ERR, "Can't get flags\n");
|
916 |
|
917 |
snprintf (actual_name, 32, "tap%d", ppa); |
918 |
pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
|
919 |
|
920 |
ifr.lifr_ppa = ppa; |
921 |
/* Assign ppa according to the unit number returned by tun device */
|
922 |
|
923 |
if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0) |
924 |
syslog (LOG_ERR, "Can't set PPA %d", ppa);
|
925 |
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0) |
926 |
syslog (LOG_ERR, "Can't get flags\n");
|
927 |
/* Push arp module to if_fd */
|
928 |
if (ioctl (if_fd, I_PUSH, "arp") < 0) |
929 |
syslog (LOG_ERR, "Can't push ARP module (2)");
|
930 |
|
931 |
/* Push arp module to ip_fd */
|
932 |
if (ioctl (ip_fd, I_POP, NULL) < 0) |
933 |
syslog (LOG_ERR, "I_POP failed\n");
|
934 |
if (ioctl (ip_fd, I_PUSH, "arp") < 0) |
935 |
syslog (LOG_ERR, "Can't push ARP module (3)\n");
|
936 |
/* Open arp_fd */
|
937 |
TFR(arp_fd = open ("/dev/tap", O_RDWR, 0)); |
938 |
if (arp_fd < 0) |
939 |
syslog (LOG_ERR, "Can't open %s\n", "/dev/tap"); |
940 |
|
941 |
/* Set ifname to arp */
|
942 |
strioc_if.ic_cmd = SIOCSLIFNAME; |
943 |
strioc_if.ic_timout = 0;
|
944 |
strioc_if.ic_len = sizeof(ifr);
|
945 |
strioc_if.ic_dp = (char *)𝔦
|
946 |
if (ioctl(arp_fd, I_STR, &strioc_if) < 0){ |
947 |
syslog (LOG_ERR, "Can't set ifname to arp\n");
|
948 |
} |
949 |
|
950 |
if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){ |
951 |
syslog(LOG_ERR, "Can't link TAP device to IP");
|
952 |
return -1; |
953 |
} |
954 |
|
955 |
if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0) |
956 |
syslog (LOG_ERR, "Can't link TAP device to ARP");
|
957 |
|
958 |
close (if_fd); |
959 |
|
960 |
memset(&ifr, 0x0, sizeof(ifr)); |
961 |
pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
|
962 |
ifr.lifr_ip_muxid = ip_muxid; |
963 |
ifr.lifr_arp_muxid = arp_muxid; |
964 |
|
965 |
if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0) |
966 |
{ |
967 |
ioctl (ip_fd, I_PUNLINK , arp_muxid); |
968 |
ioctl (ip_fd, I_PUNLINK, ip_muxid); |
969 |
syslog (LOG_ERR, "Can't set multiplexor id");
|
970 |
} |
971 |
|
972 |
snprintf(dev, dev_size, "tap%d", ppa);
|
973 |
return tap_fd;
|
974 |
} |
975 |
|
976 |
static int tap_open(char *ifname, int ifname_size) |
977 |
{ |
978 |
char dev[10]=""; |
979 |
int fd;
|
980 |
if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){ |
981 |
fprintf(stderr, "Cannot allocate TAP device\n");
|
982 |
return -1; |
983 |
} |
984 |
pstrcpy(ifname, ifname_size, dev); |
985 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
986 |
return fd;
|
987 |
} |
988 |
#elif defined (_AIX)
|
989 |
static int tap_open(char *ifname, int ifname_size) |
990 |
{ |
991 |
fprintf (stderr, "no tap on AIX\n");
|
992 |
return -1; |
993 |
} |
994 |
#else
|
995 |
static int tap_open(char *ifname, int ifname_size) |
996 |
{ |
997 |
struct ifreq ifr;
|
998 |
int fd, ret;
|
999 |
|
1000 |
TFR(fd = open("/dev/net/tun", O_RDWR));
|
1001 |
if (fd < 0) { |
1002 |
fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
|
1003 |
return -1; |
1004 |
} |
1005 |
memset(&ifr, 0, sizeof(ifr)); |
1006 |
ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
1007 |
if (ifname[0] != '\0') |
1008 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname); |
1009 |
else
|
1010 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
|
1011 |
ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
|
1012 |
if (ret != 0) { |
1013 |
fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
|
1014 |
close(fd); |
1015 |
return -1; |
1016 |
} |
1017 |
pstrcpy(ifname, ifname_size, ifr.ifr_name); |
1018 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
1019 |
return fd;
|
1020 |
} |
1021 |
#endif
|
1022 |
|
1023 |
static int launch_script(const char *setup_script, const char *ifname, int fd) |
1024 |
{ |
1025 |
int pid, status;
|
1026 |
char *args[3]; |
1027 |
char **parg;
|
1028 |
|
1029 |
/* try to launch network script */
|
1030 |
pid = fork(); |
1031 |
if (pid >= 0) { |
1032 |
if (pid == 0) { |
1033 |
int open_max = sysconf (_SC_OPEN_MAX), i;
|
1034 |
for (i = 0; i < open_max; i++) |
1035 |
if (i != STDIN_FILENO &&
|
1036 |
i != STDOUT_FILENO && |
1037 |
i != STDERR_FILENO && |
1038 |
i != fd) |
1039 |
close(i); |
1040 |
|
1041 |
parg = args; |
1042 |
*parg++ = (char *)setup_script;
|
1043 |
*parg++ = (char *)ifname;
|
1044 |
*parg++ = NULL;
|
1045 |
execv(setup_script, args); |
1046 |
_exit(1);
|
1047 |
} |
1048 |
while (waitpid(pid, &status, 0) != pid); |
1049 |
if (!WIFEXITED(status) ||
|
1050 |
WEXITSTATUS(status) != 0) {
|
1051 |
fprintf(stderr, "%s: could not launch network script\n",
|
1052 |
setup_script); |
1053 |
return -1; |
1054 |
} |
1055 |
} |
1056 |
return 0; |
1057 |
} |
1058 |
|
1059 |
static int net_tap_init(VLANState *vlan, const char *model, |
1060 |
const char *name, const char *ifname1, |
1061 |
const char *setup_script, const char *down_script) |
1062 |
{ |
1063 |
TAPState *s; |
1064 |
int fd;
|
1065 |
char ifname[128]; |
1066 |
|
1067 |
if (ifname1 != NULL) |
1068 |
pstrcpy(ifname, sizeof(ifname), ifname1);
|
1069 |
else
|
1070 |
ifname[0] = '\0'; |
1071 |
TFR(fd = tap_open(ifname, sizeof(ifname)));
|
1072 |
if (fd < 0) |
1073 |
return -1; |
1074 |
|
1075 |
if (!setup_script || !strcmp(setup_script, "no")) |
1076 |
setup_script = "";
|
1077 |
if (setup_script[0] != '\0') { |
1078 |
if (launch_script(setup_script, ifname, fd))
|
1079 |
return -1; |
1080 |
} |
1081 |
s = net_tap_fd_init(vlan, model, name, fd); |
1082 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1083 |
"ifname=%s,script=%s,downscript=%s",
|
1084 |
ifname, setup_script, down_script); |
1085 |
if (down_script && strcmp(down_script, "no")) { |
1086 |
snprintf(s->down_script, sizeof(s->down_script), "%s", down_script); |
1087 |
snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname); |
1088 |
} |
1089 |
return 0; |
1090 |
} |
1091 |
|
1092 |
#endif /* !_WIN32 */ |
1093 |
|
1094 |
#if defined(CONFIG_VDE)
|
1095 |
typedef struct VDEState { |
1096 |
VLANClientState *vc; |
1097 |
VDECONN *vde; |
1098 |
} VDEState; |
1099 |
|
1100 |
static void vde_to_qemu(void *opaque) |
1101 |
{ |
1102 |
VDEState *s = opaque; |
1103 |
uint8_t buf[4096];
|
1104 |
int size;
|
1105 |
|
1106 |
size = vde_recv(s->vde, buf, sizeof(buf), 0); |
1107 |
if (size > 0) { |
1108 |
qemu_send_packet(s->vc, buf, size); |
1109 |
} |
1110 |
} |
1111 |
|
1112 |
static void vde_from_qemu(void *opaque, const uint8_t *buf, int size) |
1113 |
{ |
1114 |
VDEState *s = opaque; |
1115 |
int ret;
|
1116 |
for(;;) {
|
1117 |
ret = vde_send(s->vde, buf, size, 0);
|
1118 |
if (ret < 0 && errno == EINTR) { |
1119 |
} else {
|
1120 |
break;
|
1121 |
} |
1122 |
} |
1123 |
} |
1124 |
|
1125 |
static void vde_cleanup(VLANClientState *vc) |
1126 |
{ |
1127 |
VDEState *s = vc->opaque; |
1128 |
qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL); |
1129 |
vde_close(s->vde); |
1130 |
qemu_free(s); |
1131 |
} |
1132 |
|
1133 |
static int net_vde_init(VLANState *vlan, const char *model, |
1134 |
const char *name, const char *sock, |
1135 |
int port, const char *group, int mode) |
1136 |
{ |
1137 |
VDEState *s; |
1138 |
char *init_group = strlen(group) ? (char *)group : NULL; |
1139 |
char *init_sock = strlen(sock) ? (char *)sock : NULL; |
1140 |
|
1141 |
struct vde_open_args args = {
|
1142 |
.port = port, |
1143 |
.group = init_group, |
1144 |
.mode = mode, |
1145 |
}; |
1146 |
|
1147 |
s = qemu_mallocz(sizeof(VDEState));
|
1148 |
s->vde = vde_open(init_sock, "QEMU", &args);
|
1149 |
if (!s->vde){
|
1150 |
free(s); |
1151 |
return -1; |
1152 |
} |
1153 |
s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu, |
1154 |
NULL, vde_cleanup, s);
|
1155 |
qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
|
1156 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d", |
1157 |
sock, vde_datafd(s->vde)); |
1158 |
return 0; |
1159 |
} |
1160 |
#endif
|
1161 |
|
1162 |
/* network connection */
|
1163 |
typedef struct NetSocketState { |
1164 |
VLANClientState *vc; |
1165 |
int fd;
|
1166 |
int state; /* 0 = getting length, 1 = getting data */ |
1167 |
unsigned int index; |
1168 |
unsigned int packet_len; |
1169 |
uint8_t buf[4096];
|
1170 |
struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ |
1171 |
} NetSocketState; |
1172 |
|
1173 |
typedef struct NetSocketListenState { |
1174 |
VLANState *vlan; |
1175 |
char *model;
|
1176 |
char *name;
|
1177 |
int fd;
|
1178 |
} NetSocketListenState; |
1179 |
|
1180 |
/* XXX: we consider we can send the whole packet without blocking */
|
1181 |
static void net_socket_receive(void *opaque, const uint8_t *buf, int size) |
1182 |
{ |
1183 |
NetSocketState *s = opaque; |
1184 |
uint32_t len; |
1185 |
len = htonl(size); |
1186 |
|
1187 |
send_all(s->fd, (const uint8_t *)&len, sizeof(len)); |
1188 |
send_all(s->fd, buf, size); |
1189 |
} |
1190 |
|
1191 |
static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size) |
1192 |
{ |
1193 |
NetSocketState *s = opaque; |
1194 |
sendto(s->fd, buf, size, 0,
|
1195 |
(struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst)); |
1196 |
} |
1197 |
|
1198 |
static void net_socket_send(void *opaque) |
1199 |
{ |
1200 |
NetSocketState *s = opaque; |
1201 |
int size, err;
|
1202 |
unsigned l;
|
1203 |
uint8_t buf1[4096];
|
1204 |
const uint8_t *buf;
|
1205 |
|
1206 |
size = recv(s->fd, buf1, sizeof(buf1), 0); |
1207 |
if (size < 0) { |
1208 |
err = socket_error(); |
1209 |
if (err != EWOULDBLOCK)
|
1210 |
goto eoc;
|
1211 |
} else if (size == 0) { |
1212 |
/* end of connection */
|
1213 |
eoc:
|
1214 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1215 |
closesocket(s->fd); |
1216 |
return;
|
1217 |
} |
1218 |
buf = buf1; |
1219 |
while (size > 0) { |
1220 |
/* reassemble a packet from the network */
|
1221 |
switch(s->state) {
|
1222 |
case 0: |
1223 |
l = 4 - s->index;
|
1224 |
if (l > size)
|
1225 |
l = size; |
1226 |
memcpy(s->buf + s->index, buf, l); |
1227 |
buf += l; |
1228 |
size -= l; |
1229 |
s->index += l; |
1230 |
if (s->index == 4) { |
1231 |
/* got length */
|
1232 |
s->packet_len = ntohl(*(uint32_t *)s->buf); |
1233 |
s->index = 0;
|
1234 |
s->state = 1;
|
1235 |
} |
1236 |
break;
|
1237 |
case 1: |
1238 |
l = s->packet_len - s->index; |
1239 |
if (l > size)
|
1240 |
l = size; |
1241 |
if (s->index + l <= sizeof(s->buf)) { |
1242 |
memcpy(s->buf + s->index, buf, l); |
1243 |
} else {
|
1244 |
fprintf(stderr, "serious error: oversized packet received,"
|
1245 |
"connection terminated.\n");
|
1246 |
s->state = 0;
|
1247 |
goto eoc;
|
1248 |
} |
1249 |
|
1250 |
s->index += l; |
1251 |
buf += l; |
1252 |
size -= l; |
1253 |
if (s->index >= s->packet_len) {
|
1254 |
qemu_send_packet(s->vc, s->buf, s->packet_len); |
1255 |
s->index = 0;
|
1256 |
s->state = 0;
|
1257 |
} |
1258 |
break;
|
1259 |
} |
1260 |
} |
1261 |
} |
1262 |
|
1263 |
static void net_socket_send_dgram(void *opaque) |
1264 |
{ |
1265 |
NetSocketState *s = opaque; |
1266 |
int size;
|
1267 |
|
1268 |
size = recv(s->fd, s->buf, sizeof(s->buf), 0); |
1269 |
if (size < 0) |
1270 |
return;
|
1271 |
if (size == 0) { |
1272 |
/* end of connection */
|
1273 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1274 |
return;
|
1275 |
} |
1276 |
qemu_send_packet(s->vc, s->buf, size); |
1277 |
} |
1278 |
|
1279 |
static int net_socket_mcast_create(struct sockaddr_in *mcastaddr) |
1280 |
{ |
1281 |
struct ip_mreq imr;
|
1282 |
int fd;
|
1283 |
int val, ret;
|
1284 |
if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
|
1285 |
fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
|
1286 |
inet_ntoa(mcastaddr->sin_addr), |
1287 |
(int)ntohl(mcastaddr->sin_addr.s_addr));
|
1288 |
return -1; |
1289 |
|
1290 |
} |
1291 |
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
1292 |
if (fd < 0) { |
1293 |
perror("socket(PF_INET, SOCK_DGRAM)");
|
1294 |
return -1; |
1295 |
} |
1296 |
|
1297 |
val = 1;
|
1298 |
ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, |
1299 |
(const char *)&val, sizeof(val)); |
1300 |
if (ret < 0) { |
1301 |
perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
|
1302 |
goto fail;
|
1303 |
} |
1304 |
|
1305 |
ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); |
1306 |
if (ret < 0) { |
1307 |
perror("bind");
|
1308 |
goto fail;
|
1309 |
} |
1310 |
|
1311 |
/* Add host to multicast group */
|
1312 |
imr.imr_multiaddr = mcastaddr->sin_addr; |
1313 |
imr.imr_interface.s_addr = htonl(INADDR_ANY); |
1314 |
|
1315 |
ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, |
1316 |
(const char *)&imr, sizeof(struct ip_mreq)); |
1317 |
if (ret < 0) { |
1318 |
perror("setsockopt(IP_ADD_MEMBERSHIP)");
|
1319 |
goto fail;
|
1320 |
} |
1321 |
|
1322 |
/* Force mcast msgs to loopback (eg. several QEMUs in same host */
|
1323 |
val = 1;
|
1324 |
ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, |
1325 |
(const char *)&val, sizeof(val)); |
1326 |
if (ret < 0) { |
1327 |
perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
|
1328 |
goto fail;
|
1329 |
} |
1330 |
|
1331 |
socket_set_nonblock(fd); |
1332 |
return fd;
|
1333 |
fail:
|
1334 |
if (fd >= 0) |
1335 |
closesocket(fd); |
1336 |
return -1; |
1337 |
} |
1338 |
|
1339 |
static void net_socket_cleanup(VLANClientState *vc) |
1340 |
{ |
1341 |
NetSocketState *s = vc->opaque; |
1342 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1343 |
close(s->fd); |
1344 |
qemu_free(s); |
1345 |
} |
1346 |
|
1347 |
static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
|
1348 |
const char *model, |
1349 |
const char *name, |
1350 |
int fd, int is_connected) |
1351 |
{ |
1352 |
struct sockaddr_in saddr;
|
1353 |
int newfd;
|
1354 |
socklen_t saddr_len; |
1355 |
NetSocketState *s; |
1356 |
|
1357 |
/* fd passed: multicast: "learn" dgram_dst address from bound address and save it
|
1358 |
* Because this may be "shared" socket from a "master" process, datagrams would be recv()
|
1359 |
* by ONLY ONE process: we must "clone" this dgram socket --jjo
|
1360 |
*/
|
1361 |
|
1362 |
if (is_connected) {
|
1363 |
if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) { |
1364 |
/* must be bound */
|
1365 |
if (saddr.sin_addr.s_addr==0) { |
1366 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
|
1367 |
fd); |
1368 |
return NULL; |
1369 |
} |
1370 |
/* clone dgram socket */
|
1371 |
newfd = net_socket_mcast_create(&saddr); |
1372 |
if (newfd < 0) { |
1373 |
/* error already reported by net_socket_mcast_create() */
|
1374 |
close(fd); |
1375 |
return NULL; |
1376 |
} |
1377 |
/* clone newfd to fd, close newfd */
|
1378 |
dup2(newfd, fd); |
1379 |
close(newfd); |
1380 |
|
1381 |
} else {
|
1382 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
|
1383 |
fd, strerror(errno)); |
1384 |
return NULL; |
1385 |
} |
1386 |
} |
1387 |
|
1388 |
s = qemu_mallocz(sizeof(NetSocketState));
|
1389 |
s->fd = fd; |
1390 |
|
1391 |
s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram, |
1392 |
NULL, net_socket_cleanup, s);
|
1393 |
qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
|
1394 |
|
1395 |
/* mcast: save bound address as dst */
|
1396 |
if (is_connected) s->dgram_dst=saddr;
|
1397 |
|
1398 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1399 |
"socket: fd=%d (%s mcast=%s:%d)",
|
1400 |
fd, is_connected? "cloned" : "", |
1401 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1402 |
return s;
|
1403 |
} |
1404 |
|
1405 |
static void net_socket_connect(void *opaque) |
1406 |
{ |
1407 |
NetSocketState *s = opaque; |
1408 |
qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
|
1409 |
} |
1410 |
|
1411 |
static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
|
1412 |
const char *model, |
1413 |
const char *name, |
1414 |
int fd, int is_connected) |
1415 |
{ |
1416 |
NetSocketState *s; |
1417 |
s = qemu_mallocz(sizeof(NetSocketState));
|
1418 |
s->fd = fd; |
1419 |
s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive, |
1420 |
NULL, net_socket_cleanup, s);
|
1421 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1422 |
"socket: fd=%d", fd);
|
1423 |
if (is_connected) {
|
1424 |
net_socket_connect(s); |
1425 |
} else {
|
1426 |
qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
|
1427 |
} |
1428 |
return s;
|
1429 |
} |
1430 |
|
1431 |
static NetSocketState *net_socket_fd_init(VLANState *vlan,
|
1432 |
const char *model, const char *name, |
1433 |
int fd, int is_connected) |
1434 |
{ |
1435 |
int so_type=-1, optlen=sizeof(so_type); |
1436 |
|
1437 |
if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, |
1438 |
(socklen_t *)&optlen)< 0) {
|
1439 |
fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
|
1440 |
return NULL; |
1441 |
} |
1442 |
switch(so_type) {
|
1443 |
case SOCK_DGRAM:
|
1444 |
return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
|
1445 |
case SOCK_STREAM:
|
1446 |
return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
|
1447 |
default:
|
1448 |
/* who knows ... this could be a eg. a pty, do warn and continue as stream */
|
1449 |
fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
|
1450 |
return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
|
1451 |
} |
1452 |
return NULL; |
1453 |
} |
1454 |
|
1455 |
static void net_socket_accept(void *opaque) |
1456 |
{ |
1457 |
NetSocketListenState *s = opaque; |
1458 |
NetSocketState *s1; |
1459 |
struct sockaddr_in saddr;
|
1460 |
socklen_t len; |
1461 |
int fd;
|
1462 |
|
1463 |
for(;;) {
|
1464 |
len = sizeof(saddr);
|
1465 |
fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
|
1466 |
if (fd < 0 && errno != EINTR) { |
1467 |
return;
|
1468 |
} else if (fd >= 0) { |
1469 |
break;
|
1470 |
} |
1471 |
} |
1472 |
s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
|
1473 |
if (!s1) {
|
1474 |
closesocket(fd); |
1475 |
} else {
|
1476 |
snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
|
1477 |
"socket: connection from %s:%d",
|
1478 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1479 |
} |
1480 |
} |
1481 |
|
1482 |
static int net_socket_listen_init(VLANState *vlan, |
1483 |
const char *model, |
1484 |
const char *name, |
1485 |
const char *host_str) |
1486 |
{ |
1487 |
NetSocketListenState *s; |
1488 |
int fd, val, ret;
|
1489 |
struct sockaddr_in saddr;
|
1490 |
|
1491 |
if (parse_host_port(&saddr, host_str) < 0) |
1492 |
return -1; |
1493 |
|
1494 |
s = qemu_mallocz(sizeof(NetSocketListenState));
|
1495 |
|
1496 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
1497 |
if (fd < 0) { |
1498 |
perror("socket");
|
1499 |
return -1; |
1500 |
} |
1501 |
socket_set_nonblock(fd); |
1502 |
|
1503 |
/* allow fast reuse */
|
1504 |
val = 1;
|
1505 |
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val)); |
1506 |
|
1507 |
ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
1508 |
if (ret < 0) { |
1509 |
perror("bind");
|
1510 |
return -1; |
1511 |
} |
1512 |
ret = listen(fd, 0);
|
1513 |
if (ret < 0) { |
1514 |
perror("listen");
|
1515 |
return -1; |
1516 |
} |
1517 |
s->vlan = vlan; |
1518 |
s->model = strdup(model); |
1519 |
s->name = name ? strdup(name) : NULL;
|
1520 |
s->fd = fd; |
1521 |
qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
|
1522 |
return 0; |
1523 |
} |
1524 |
|
1525 |
static int net_socket_connect_init(VLANState *vlan, |
1526 |
const char *model, |
1527 |
const char *name, |
1528 |
const char *host_str) |
1529 |
{ |
1530 |
NetSocketState *s; |
1531 |
int fd, connected, ret, err;
|
1532 |
struct sockaddr_in saddr;
|
1533 |
|
1534 |
if (parse_host_port(&saddr, host_str) < 0) |
1535 |
return -1; |
1536 |
|
1537 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
1538 |
if (fd < 0) { |
1539 |
perror("socket");
|
1540 |
return -1; |
1541 |
} |
1542 |
socket_set_nonblock(fd); |
1543 |
|
1544 |
connected = 0;
|
1545 |
for(;;) {
|
1546 |
ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
1547 |
if (ret < 0) { |
1548 |
err = socket_error(); |
1549 |
if (err == EINTR || err == EWOULDBLOCK) {
|
1550 |
} else if (err == EINPROGRESS) { |
1551 |
break;
|
1552 |
#ifdef _WIN32
|
1553 |
} else if (err == WSAEALREADY) { |
1554 |
break;
|
1555 |
#endif
|
1556 |
} else {
|
1557 |
perror("connect");
|
1558 |
closesocket(fd); |
1559 |
return -1; |
1560 |
} |
1561 |
} else {
|
1562 |
connected = 1;
|
1563 |
break;
|
1564 |
} |
1565 |
} |
1566 |
s = net_socket_fd_init(vlan, model, name, fd, connected); |
1567 |
if (!s)
|
1568 |
return -1; |
1569 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1570 |
"socket: connect to %s:%d",
|
1571 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1572 |
return 0; |
1573 |
} |
1574 |
|
1575 |
static int net_socket_mcast_init(VLANState *vlan, |
1576 |
const char *model, |
1577 |
const char *name, |
1578 |
const char *host_str) |
1579 |
{ |
1580 |
NetSocketState *s; |
1581 |
int fd;
|
1582 |
struct sockaddr_in saddr;
|
1583 |
|
1584 |
if (parse_host_port(&saddr, host_str) < 0) |
1585 |
return -1; |
1586 |
|
1587 |
|
1588 |
fd = net_socket_mcast_create(&saddr); |
1589 |
if (fd < 0) |
1590 |
return -1; |
1591 |
|
1592 |
s = net_socket_fd_init(vlan, model, name, fd, 0);
|
1593 |
if (!s)
|
1594 |
return -1; |
1595 |
|
1596 |
s->dgram_dst = saddr; |
1597 |
|
1598 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1599 |
"socket: mcast=%s:%d",
|
1600 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1601 |
return 0; |
1602 |
|
1603 |
} |
1604 |
|
1605 |
typedef struct DumpState { |
1606 |
VLANClientState *pcap_vc; |
1607 |
int fd;
|
1608 |
int pcap_caplen;
|
1609 |
} DumpState; |
1610 |
|
1611 |
#define PCAP_MAGIC 0xa1b2c3d4 |
1612 |
|
1613 |
struct pcap_file_hdr {
|
1614 |
uint32_t magic; |
1615 |
uint16_t version_major; |
1616 |
uint16_t version_minor; |
1617 |
int32_t thiszone; |
1618 |
uint32_t sigfigs; |
1619 |
uint32_t snaplen; |
1620 |
uint32_t linktype; |
1621 |
}; |
1622 |
|
1623 |
struct pcap_sf_pkthdr {
|
1624 |
struct {
|
1625 |
int32_t tv_sec; |
1626 |
int32_t tv_usec; |
1627 |
} ts; |
1628 |
uint32_t caplen; |
1629 |
uint32_t len; |
1630 |
}; |
1631 |
|
1632 |
static void dump_receive(void *opaque, const uint8_t *buf, int size) |
1633 |
{ |
1634 |
DumpState *s = opaque; |
1635 |
struct pcap_sf_pkthdr hdr;
|
1636 |
int64_t ts; |
1637 |
int caplen;
|
1638 |
|
1639 |
/* Early return in case of previous error. */
|
1640 |
if (s->fd < 0) { |
1641 |
return;
|
1642 |
} |
1643 |
|
1644 |
ts = muldiv64 (qemu_get_clock(vm_clock),1000000, ticks_per_sec);
|
1645 |
caplen = size > s->pcap_caplen ? s->pcap_caplen : size; |
1646 |
|
1647 |
hdr.ts.tv_sec = ts / 1000000000LL;
|
1648 |
hdr.ts.tv_usec = ts % 1000000;
|
1649 |
hdr.caplen = caplen; |
1650 |
hdr.len = size; |
1651 |
if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) || |
1652 |
write(s->fd, buf, caplen) != caplen) { |
1653 |
qemu_log("-net dump write error - stop dump\n");
|
1654 |
close(s->fd); |
1655 |
s->fd = -1;
|
1656 |
} |
1657 |
} |
1658 |
|
1659 |
static void net_dump_cleanup(VLANClientState *vc) |
1660 |
{ |
1661 |
DumpState *s = vc->opaque; |
1662 |
|
1663 |
close(s->fd); |
1664 |
qemu_free(s); |
1665 |
} |
1666 |
|
1667 |
static int net_dump_init(VLANState *vlan, const char *device, |
1668 |
const char *name, const char *filename, int len) |
1669 |
{ |
1670 |
struct pcap_file_hdr hdr;
|
1671 |
DumpState *s; |
1672 |
|
1673 |
s = qemu_malloc(sizeof(DumpState));
|
1674 |
|
1675 |
s->fd = open(filename, O_CREAT | O_WRONLY, 0644);
|
1676 |
if (s->fd < 0) { |
1677 |
fprintf(stderr, "-net dump: can't open %s\n", filename);
|
1678 |
return -1; |
1679 |
} |
1680 |
|
1681 |
s->pcap_caplen = len; |
1682 |
|
1683 |
hdr.magic = PCAP_MAGIC; |
1684 |
hdr.version_major = 2;
|
1685 |
hdr.version_minor = 4;
|
1686 |
hdr.thiszone = 0;
|
1687 |
hdr.sigfigs = 0;
|
1688 |
hdr.snaplen = s->pcap_caplen; |
1689 |
hdr.linktype = 1;
|
1690 |
|
1691 |
if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) { |
1692 |
perror("-net dump write error");
|
1693 |
close(s->fd); |
1694 |
qemu_free(s); |
1695 |
return -1; |
1696 |
} |
1697 |
|
1698 |
s->pcap_vc = qemu_new_vlan_client(vlan, device, name, dump_receive, NULL,
|
1699 |
net_dump_cleanup, s); |
1700 |
snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
|
1701 |
"dump to %s (len=%d)", filename, len);
|
1702 |
return 0; |
1703 |
} |
1704 |
|
1705 |
/* find or alloc a new VLAN */
|
1706 |
VLANState *qemu_find_vlan(int id)
|
1707 |
{ |
1708 |
VLANState **pvlan, *vlan; |
1709 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
1710 |
if (vlan->id == id)
|
1711 |
return vlan;
|
1712 |
} |
1713 |
vlan = qemu_mallocz(sizeof(VLANState));
|
1714 |
vlan->id = id; |
1715 |
vlan->next = NULL;
|
1716 |
pvlan = &first_vlan; |
1717 |
while (*pvlan != NULL) |
1718 |
pvlan = &(*pvlan)->next; |
1719 |
*pvlan = vlan; |
1720 |
return vlan;
|
1721 |
} |
1722 |
|
1723 |
static int nic_get_free_idx(void) |
1724 |
{ |
1725 |
int index;
|
1726 |
|
1727 |
for (index = 0; index < MAX_NICS; index++) |
1728 |
if (!nd_table[index].used)
|
1729 |
return index;
|
1730 |
return -1; |
1731 |
} |
1732 |
|
1733 |
void qemu_check_nic_model(NICInfo *nd, const char *model) |
1734 |
{ |
1735 |
const char *models[2]; |
1736 |
|
1737 |
models[0] = model;
|
1738 |
models[1] = NULL; |
1739 |
|
1740 |
qemu_check_nic_model_list(nd, models, model); |
1741 |
} |
1742 |
|
1743 |
void qemu_check_nic_model_list(NICInfo *nd, const char * const *models, |
1744 |
const char *default_model) |
1745 |
{ |
1746 |
int i, exit_status = 0; |
1747 |
|
1748 |
if (!nd->model)
|
1749 |
nd->model = strdup(default_model); |
1750 |
|
1751 |
if (strcmp(nd->model, "?") != 0) { |
1752 |
for (i = 0 ; models[i]; i++) |
1753 |
if (strcmp(nd->model, models[i]) == 0) |
1754 |
return;
|
1755 |
|
1756 |
fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
|
1757 |
exit_status = 1;
|
1758 |
} |
1759 |
|
1760 |
fprintf(stderr, "qemu: Supported NIC models: ");
|
1761 |
for (i = 0 ; models[i]; i++) |
1762 |
fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); |
1763 |
|
1764 |
exit(exit_status); |
1765 |
} |
1766 |
|
1767 |
int net_client_init(const char *device, const char *p) |
1768 |
{ |
1769 |
static const char * const fd_params[] = { |
1770 |
"vlan", "name", "fd", NULL |
1771 |
}; |
1772 |
char buf[1024]; |
1773 |
int vlan_id, ret;
|
1774 |
VLANState *vlan; |
1775 |
char *name = NULL; |
1776 |
|
1777 |
vlan_id = 0;
|
1778 |
if (get_param_value(buf, sizeof(buf), "vlan", p)) { |
1779 |
vlan_id = strtol(buf, NULL, 0); |
1780 |
} |
1781 |
vlan = qemu_find_vlan(vlan_id); |
1782 |
|
1783 |
if (get_param_value(buf, sizeof(buf), "name", p)) { |
1784 |
name = strdup(buf); |
1785 |
} |
1786 |
if (!strcmp(device, "nic")) { |
1787 |
static const char * const nic_params[] = { |
1788 |
"vlan", "name", "macaddr", "model", NULL |
1789 |
}; |
1790 |
NICInfo *nd; |
1791 |
uint8_t *macaddr; |
1792 |
int idx = nic_get_free_idx();
|
1793 |
|
1794 |
if (check_params(buf, sizeof(buf), nic_params, p) < 0) { |
1795 |
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
|
1796 |
buf, p); |
1797 |
return -1; |
1798 |
} |
1799 |
if (idx == -1 || nb_nics >= MAX_NICS) { |
1800 |
fprintf(stderr, "Too Many NICs\n");
|
1801 |
ret = -1;
|
1802 |
goto out;
|
1803 |
} |
1804 |
nd = &nd_table[idx]; |
1805 |
macaddr = nd->macaddr; |
1806 |
macaddr[0] = 0x52; |
1807 |
macaddr[1] = 0x54; |
1808 |
macaddr[2] = 0x00; |
1809 |
macaddr[3] = 0x12; |
1810 |
macaddr[4] = 0x34; |
1811 |
macaddr[5] = 0x56 + idx; |
1812 |
|
1813 |
if (get_param_value(buf, sizeof(buf), "macaddr", p)) { |
1814 |
if (parse_macaddr(macaddr, buf) < 0) { |
1815 |
fprintf(stderr, "invalid syntax for ethernet address\n");
|
1816 |
ret = -1;
|
1817 |
goto out;
|
1818 |
} |
1819 |
} |
1820 |
if (get_param_value(buf, sizeof(buf), "model", p)) { |
1821 |
nd->model = strdup(buf); |
1822 |
} |
1823 |
nd->vlan = vlan; |
1824 |
nd->name = name; |
1825 |
nd->used = 1;
|
1826 |
name = NULL;
|
1827 |
nb_nics++; |
1828 |
vlan->nb_guest_devs++; |
1829 |
ret = idx; |
1830 |
} else
|
1831 |
if (!strcmp(device, "none")) { |
1832 |
if (*p != '\0') { |
1833 |
fprintf(stderr, "qemu: 'none' takes no parameters\n");
|
1834 |
return -1; |
1835 |
} |
1836 |
/* does nothing. It is needed to signal that no network cards
|
1837 |
are wanted */
|
1838 |
ret = 0;
|
1839 |
} else
|
1840 |
#ifdef CONFIG_SLIRP
|
1841 |
if (!strcmp(device, "user")) { |
1842 |
static const char * const slirp_params[] = { |
1843 |
"vlan", "name", "hostname", "restrict", "ip", NULL |
1844 |
}; |
1845 |
if (check_params(buf, sizeof(buf), slirp_params, p) < 0) { |
1846 |
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
|
1847 |
buf, p); |
1848 |
return -1; |
1849 |
} |
1850 |
if (get_param_value(buf, sizeof(buf), "hostname", p)) { |
1851 |
pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
|
1852 |
} |
1853 |
if (get_param_value(buf, sizeof(buf), "restrict", p)) { |
1854 |
slirp_restrict = (buf[0] == 'y') ? 1 : 0; |
1855 |
} |
1856 |
if (get_param_value(buf, sizeof(buf), "ip", p)) { |
1857 |
slirp_ip = strdup(buf); |
1858 |
} |
1859 |
vlan->nb_host_devs++; |
1860 |
ret = net_slirp_init(vlan, device, name); |
1861 |
} else if (!strcmp(device, "channel")) { |
1862 |
long port;
|
1863 |
char name[20], *devname; |
1864 |
struct VMChannel *vmc;
|
1865 |
|
1866 |
port = strtol(p, &devname, 10);
|
1867 |
devname++; |
1868 |
if (port < 1 || port > 65535) { |
1869 |
fprintf(stderr, "vmchannel wrong port number\n");
|
1870 |
ret = -1;
|
1871 |
goto out;
|
1872 |
} |
1873 |
vmc = malloc(sizeof(struct VMChannel)); |
1874 |
snprintf(name, 20, "vmchannel%ld", port); |
1875 |
vmc->hd = qemu_chr_open(name, devname, NULL);
|
1876 |
if (!vmc->hd) {
|
1877 |
fprintf(stderr, "qemu: could not open vmchannel device"
|
1878 |
"'%s'\n", devname);
|
1879 |
ret = -1;
|
1880 |
goto out;
|
1881 |
} |
1882 |
vmc->port = port; |
1883 |
slirp_add_exec(3, vmc->hd, 4, port); |
1884 |
qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read, |
1885 |
NULL, vmc);
|
1886 |
ret = 0;
|
1887 |
} else
|
1888 |
#endif
|
1889 |
#ifdef _WIN32
|
1890 |
if (!strcmp(device, "tap")) { |
1891 |
static const char * const tap_params[] = { |
1892 |
"vlan", "name", "ifname", NULL |
1893 |
}; |
1894 |
char ifname[64]; |
1895 |
|
1896 |
if (check_params(buf, sizeof(buf), tap_params, p) < 0) { |
1897 |
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
|
1898 |
buf, p); |
1899 |
return -1; |
1900 |
} |
1901 |
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
1902 |
fprintf(stderr, "tap: no interface name\n");
|
1903 |
ret = -1;
|
1904 |
goto out;
|
1905 |
} |
1906 |
vlan->nb_host_devs++; |
1907 |
ret = tap_win32_init(vlan, device, name, ifname); |
1908 |
} else
|
1909 |
#elif defined (_AIX)
|
1910 |
#else
|
1911 |
if (!strcmp(device, "tap")) { |
1912 |
char ifname[64]; |
1913 |
char setup_script[1024], down_script[1024]; |
1914 |
int fd;
|
1915 |
vlan->nb_host_devs++; |
1916 |
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
1917 |
if (check_params(buf, sizeof(buf), fd_params, p) < 0) { |
1918 |
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
|
1919 |
buf, p); |
1920 |
return -1; |
1921 |
} |
1922 |
fd = strtol(buf, NULL, 0); |
1923 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
1924 |
net_tap_fd_init(vlan, device, name, fd); |
1925 |
ret = 0;
|
1926 |
} else {
|
1927 |
static const char * const tap_params[] = { |
1928 |
"vlan", "name", "ifname", "script", "downscript", NULL |
1929 |
}; |
1930 |
if (check_params(buf, sizeof(buf), tap_params, p) < 0) { |
1931 |
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
|
1932 |
buf, p); |
1933 |
return -1; |
1934 |
} |
1935 |
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
1936 |
ifname[0] = '\0'; |
1937 |
} |
1938 |
if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) { |
1939 |
pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
|
1940 |
} |
1941 |
if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) { |
1942 |
pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
|
1943 |
} |
1944 |
ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script); |
1945 |
} |
1946 |
} else
|
1947 |
#endif
|
1948 |
if (!strcmp(device, "socket")) { |
1949 |
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
1950 |
int fd;
|
1951 |
if (check_params(buf, sizeof(buf), fd_params, p) < 0) { |
1952 |
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
|
1953 |
buf, p); |
1954 |
return -1; |
1955 |
} |
1956 |
fd = strtol(buf, NULL, 0); |
1957 |
ret = -1;
|
1958 |
if (net_socket_fd_init(vlan, device, name, fd, 1)) |
1959 |
ret = 0;
|
1960 |
} else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) { |
1961 |
static const char * const listen_params[] = { |
1962 |
"vlan", "name", "listen", NULL |
1963 |
}; |
1964 |
if (check_params(buf, sizeof(buf), listen_params, p) < 0) { |
1965 |
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
|
1966 |
buf, p); |
1967 |
return -1; |
1968 |
} |
1969 |
ret = net_socket_listen_init(vlan, device, name, buf); |
1970 |
} else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) { |
1971 |
static const char * const connect_params[] = { |
1972 |
"vlan", "name", "connect", NULL |
1973 |
}; |
1974 |
if (check_params(buf, sizeof(buf), connect_params, p) < 0) { |
1975 |
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
|
1976 |
buf, p); |
1977 |
return -1; |
1978 |
} |
1979 |
ret = net_socket_connect_init(vlan, device, name, buf); |
1980 |
} else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) { |
1981 |
static const char * const mcast_params[] = { |
1982 |
"vlan", "name", "mcast", NULL |
1983 |
}; |
1984 |
if (check_params(buf, sizeof(buf), mcast_params, p) < 0) { |
1985 |
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
|
1986 |
buf, p); |
1987 |
return -1; |
1988 |
} |
1989 |
ret = net_socket_mcast_init(vlan, device, name, buf); |
1990 |
} else {
|
1991 |
fprintf(stderr, "Unknown socket options: %s\n", p);
|
1992 |
ret = -1;
|
1993 |
goto out;
|
1994 |
} |
1995 |
vlan->nb_host_devs++; |
1996 |
} else
|
1997 |
#ifdef CONFIG_VDE
|
1998 |
if (!strcmp(device, "vde")) { |
1999 |
static const char * const vde_params[] = { |
2000 |
"vlan", "name", "sock", "port", "group", "mode", NULL |
2001 |
}; |
2002 |
char vde_sock[1024], vde_group[512]; |
2003 |
int vde_port, vde_mode;
|
2004 |
|
2005 |
if (check_params(buf, sizeof(buf), vde_params, p) < 0) { |
2006 |
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
|
2007 |
buf, p); |
2008 |
return -1; |
2009 |
} |
2010 |
vlan->nb_host_devs++; |
2011 |
if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) { |
2012 |
vde_sock[0] = '\0'; |
2013 |
} |
2014 |
if (get_param_value(buf, sizeof(buf), "port", p) > 0) { |
2015 |
vde_port = strtol(buf, NULL, 10); |
2016 |
} else {
|
2017 |
vde_port = 0;
|
2018 |
} |
2019 |
if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) { |
2020 |
vde_group[0] = '\0'; |
2021 |
} |
2022 |
if (get_param_value(buf, sizeof(buf), "mode", p) > 0) { |
2023 |
vde_mode = strtol(buf, NULL, 8); |
2024 |
} else {
|
2025 |
vde_mode = 0700;
|
2026 |
} |
2027 |
ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode); |
2028 |
} else
|
2029 |
#endif
|
2030 |
if (!strcmp(device, "dump")) { |
2031 |
int len = 65536; |
2032 |
|
2033 |
if (get_param_value(buf, sizeof(buf), "len", p) > 0) { |
2034 |
len = strtol(buf, NULL, 0); |
2035 |
} |
2036 |
if (!get_param_value(buf, sizeof(buf), "file", p)) { |
2037 |
snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id); |
2038 |
} |
2039 |
ret = net_dump_init(vlan, device, name, buf, len); |
2040 |
} else {
|
2041 |
fprintf(stderr, "Unknown network device: %s\n", device);
|
2042 |
ret = -1;
|
2043 |
goto out;
|
2044 |
} |
2045 |
if (ret < 0) { |
2046 |
fprintf(stderr, "Could not initialize device '%s'\n", device);
|
2047 |
} |
2048 |
out:
|
2049 |
if (name)
|
2050 |
free(name); |
2051 |
return ret;
|
2052 |
} |
2053 |
|
2054 |
void net_client_uninit(NICInfo *nd)
|
2055 |
{ |
2056 |
nd->vlan->nb_guest_devs--; |
2057 |
nb_nics--; |
2058 |
nd->used = 0;
|
2059 |
free((void *)nd->model);
|
2060 |
} |
2061 |
|
2062 |
static int net_host_check_device(const char *device) |
2063 |
{ |
2064 |
int i;
|
2065 |
const char *valid_param_list[] = { "tap", "socket", "dump" |
2066 |
#ifdef CONFIG_SLIRP
|
2067 |
,"user"
|
2068 |
#endif
|
2069 |
#ifdef CONFIG_VDE
|
2070 |
,"vde"
|
2071 |
#endif
|
2072 |
}; |
2073 |
for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { |
2074 |
if (!strncmp(valid_param_list[i], device,
|
2075 |
strlen(valid_param_list[i]))) |
2076 |
return 1; |
2077 |
} |
2078 |
|
2079 |
return 0; |
2080 |
} |
2081 |
|
2082 |
void net_host_device_add(Monitor *mon, const char *device, const char *opts) |
2083 |
{ |
2084 |
if (!net_host_check_device(device)) {
|
2085 |
monitor_printf(mon, "invalid host network device %s\n", device);
|
2086 |
return;
|
2087 |
} |
2088 |
if (net_client_init(device, opts ? opts : "") < 0) { |
2089 |
monitor_printf(mon, "adding host network device %s failed\n", device);
|
2090 |
} |
2091 |
} |
2092 |
|
2093 |
void net_host_device_remove(Monitor *mon, int vlan_id, const char *device) |
2094 |
{ |
2095 |
VLANState *vlan; |
2096 |
VLANClientState *vc; |
2097 |
|
2098 |
vlan = qemu_find_vlan(vlan_id); |
2099 |
|
2100 |
for (vc = vlan->first_client; vc != NULL; vc = vc->next) { |
2101 |
if (!strcmp(vc->name, device)) {
|
2102 |
break;
|
2103 |
} |
2104 |
} |
2105 |
|
2106 |
if (!vc) {
|
2107 |
monitor_printf(mon, "can't find device %s\n", device);
|
2108 |
return;
|
2109 |
} |
2110 |
if (!net_host_check_device(vc->model)) {
|
2111 |
monitor_printf(mon, "invalid host network device %s\n", device);
|
2112 |
return;
|
2113 |
} |
2114 |
qemu_del_vlan_client(vc); |
2115 |
} |
2116 |
|
2117 |
int net_client_parse(const char *str) |
2118 |
{ |
2119 |
const char *p; |
2120 |
char *q;
|
2121 |
char device[64]; |
2122 |
|
2123 |
p = str; |
2124 |
q = device; |
2125 |
while (*p != '\0' && *p != ',') { |
2126 |
if ((q - device) < sizeof(device) - 1) |
2127 |
*q++ = *p; |
2128 |
p++; |
2129 |
} |
2130 |
*q = '\0';
|
2131 |
if (*p == ',') |
2132 |
p++; |
2133 |
|
2134 |
return net_client_init(device, p);
|
2135 |
} |
2136 |
|
2137 |
void do_info_network(Monitor *mon)
|
2138 |
{ |
2139 |
VLANState *vlan; |
2140 |
VLANClientState *vc; |
2141 |
|
2142 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
2143 |
monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
|
2144 |
for(vc = vlan->first_client; vc != NULL; vc = vc->next) |
2145 |
monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
|
2146 |
} |
2147 |
} |
2148 |
|
2149 |
int do_set_link(Monitor *mon, const char *name, const char *up_or_down) |
2150 |
{ |
2151 |
VLANState *vlan; |
2152 |
VLANClientState *vc = NULL;
|
2153 |
|
2154 |
for (vlan = first_vlan; vlan != NULL; vlan = vlan->next) |
2155 |
for (vc = vlan->first_client; vc != NULL; vc = vc->next) |
2156 |
if (strcmp(vc->name, name) == 0) |
2157 |
goto done;
|
2158 |
done:
|
2159 |
|
2160 |
if (!vc) {
|
2161 |
monitor_printf(mon, "could not find network device '%s'", name);
|
2162 |
return 0; |
2163 |
} |
2164 |
|
2165 |
if (strcmp(up_or_down, "up") == 0) |
2166 |
vc->link_down = 0;
|
2167 |
else if (strcmp(up_or_down, "down") == 0) |
2168 |
vc->link_down = 1;
|
2169 |
else
|
2170 |
monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
|
2171 |
"valid\n", up_or_down);
|
2172 |
|
2173 |
if (vc->link_status_changed)
|
2174 |
vc->link_status_changed(vc); |
2175 |
|
2176 |
return 1; |
2177 |
} |
2178 |
|
2179 |
void net_cleanup(void) |
2180 |
{ |
2181 |
VLANState *vlan; |
2182 |
|
2183 |
/* close network clients */
|
2184 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
2185 |
VLANClientState *vc = vlan->first_client; |
2186 |
|
2187 |
while (vc) {
|
2188 |
VLANClientState *next = vc->next; |
2189 |
|
2190 |
qemu_del_vlan_client(vc); |
2191 |
|
2192 |
vc = next; |
2193 |
} |
2194 |
} |
2195 |
} |
2196 |
|
2197 |
void net_client_check(void) |
2198 |
{ |
2199 |
VLANState *vlan; |
2200 |
|
2201 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
2202 |
if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0) |
2203 |
continue;
|
2204 |
if (vlan->nb_guest_devs == 0) |
2205 |
fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
|
2206 |
if (vlan->nb_host_devs == 0) |
2207 |
fprintf(stderr, |
2208 |
"Warning: vlan %d is not connected to host network\n",
|
2209 |
vlan->id); |
2210 |
} |
2211 |
} |