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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> |
25 |
#include <fcntl.h> |
26 |
#include <signal.h> |
27 |
#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" |
34 |
|
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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> |
69 |
|
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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" |
74 |
|
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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> |
90 |
#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> |
102 |
#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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|
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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" |
121 |
|
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#if defined(CONFIG_SLIRP)
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#include "libslirp.h" |
124 |
#endif
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|
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|
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static VLANState *first_vlan;
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|
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/***********************************************************/
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/* network device redirectors */
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|
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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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|
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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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} |
148 |
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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|
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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 && |
169 |
offset >= 0 && offset <= 0xFFFFFF) { |
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macaddr[3] = (offset & 0xFF0000) >> 16; |
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macaddr[4] = (offset & 0xFF00) >> 8; |
172 |
macaddr[5] = offset & 0xFF; |
173 |
return 0; |
174 |
} else {
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for(i = 0; i < 6; i++) { |
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macaddr[i] = strtol(p, (char **)&p, 16); |
177 |
if (i == 5) { |
178 |
if (*p != '\0') |
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return -1; |
180 |
} else {
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if (*p != ':' && *p != '-') |
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return -1; |
183 |
p++; |
184 |
} |
185 |
} |
186 |
return 0; |
187 |
} |
188 |
|
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return -1; |
190 |
} |
191 |
|
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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; |
197 |
p1 = strchr(p, sep); |
198 |
if (!p1)
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return -1; |
200 |
len = p1 - p; |
201 |
p1++; |
202 |
if (buf_size > 0) { |
203 |
if (len > buf_size - 1) |
204 |
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; |
210 |
} |
211 |
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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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225 |
* if it was provided else use the "any address" and "any port".
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*/
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if ((ptr = strchr(str,','))) |
228 |
*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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} |
234 |
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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); |
247 |
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fail:
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free(str); |
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return -1; |
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} |
252 |
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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; |
258 |
int port;
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p = str; |
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if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
262 |
return -1; |
263 |
saddr->sin_family = AF_INET; |
264 |
if (buf[0] == '\0') { |
265 |
saddr->sin_addr.s_addr = 0;
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} else {
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if (qemu_isdigit(buf[0])) { |
268 |
if (!inet_aton(buf, &saddr->sin_addr))
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return -1; |
270 |
} 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); |
277 |
if (r == p)
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return -1; |
279 |
saddr->sin_port = htons(port); |
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return 0; |
281 |
} |
282 |
|
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#if !defined(_WIN32) && 0 |
284 |
static int parse_unix_path(struct sockaddr_un *uaddr, const char *str) |
285 |
{ |
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const char *p; |
287 |
int len;
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|
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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); |
293 |
|
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memset(uaddr, 0, sizeof(*uaddr)); |
295 |
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uaddr->sun_family = AF_UNIX; |
297 |
memcpy(uaddr->sun_path, str, len); |
298 |
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return 0; |
300 |
} |
301 |
#endif
|
302 |
|
303 |
void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]) |
304 |
{ |
305 |
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, |
308 |
macaddr[0], macaddr[1], macaddr[2], |
309 |
macaddr[3], macaddr[4], macaddr[5]); |
310 |
} |
311 |
|
312 |
static char *assign_name(VLANClientState *vc1, const char *model) |
313 |
{ |
314 |
VLANState *vlan; |
315 |
char buf[256]; |
316 |
int id = 0; |
317 |
|
318 |
for (vlan = first_vlan; vlan; vlan = vlan->next) {
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319 |
VLANClientState *vc; |
320 |
|
321 |
for (vc = vlan->first_client; vc; vc = vc->next)
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322 |
if (vc != vc1 && strcmp(vc->model, model) == 0) |
323 |
id++; |
324 |
} |
325 |
|
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snprintf(buf, sizeof(buf), "%s.%d", model, id); |
327 |
|
328 |
return strdup(buf);
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329 |
} |
330 |
|
331 |
VLANClientState *qemu_new_vlan_client(VLANState *vlan, |
332 |
const char *model, |
333 |
const char *name, |
334 |
IOReadHandler *fd_read, |
335 |
IOCanRWHandler *fd_can_read, |
336 |
NetCleanup *cleanup, |
337 |
void *opaque)
|
338 |
{ |
339 |
VLANClientState *vc, **pvc; |
340 |
vc = qemu_mallocz(sizeof(VLANClientState));
|
341 |
vc->model = strdup(model); |
342 |
if (name)
|
343 |
vc->name = strdup(name); |
344 |
else
|
345 |
vc->name = assign_name(vc, model); |
346 |
vc->fd_read = fd_read; |
347 |
vc->fd_can_read = fd_can_read; |
348 |
vc->cleanup = cleanup; |
349 |
vc->opaque = opaque; |
350 |
vc->vlan = vlan; |
351 |
|
352 |
vc->next = NULL;
|
353 |
pvc = &vlan->first_client; |
354 |
while (*pvc != NULL) |
355 |
pvc = &(*pvc)->next; |
356 |
*pvc = vc; |
357 |
return vc;
|
358 |
} |
359 |
|
360 |
void qemu_del_vlan_client(VLANClientState *vc)
|
361 |
{ |
362 |
VLANClientState **pvc = &vc->vlan->first_client; |
363 |
|
364 |
while (*pvc != NULL) |
365 |
if (*pvc == vc) {
|
366 |
*pvc = vc->next; |
367 |
if (vc->cleanup) {
|
368 |
vc->cleanup(vc); |
369 |
} |
370 |
free(vc->name); |
371 |
free(vc->model); |
372 |
free(vc); |
373 |
break;
|
374 |
} else
|
375 |
pvc = &(*pvc)->next; |
376 |
} |
377 |
|
378 |
VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque)
|
379 |
{ |
380 |
VLANClientState **pvc = &vlan->first_client; |
381 |
|
382 |
while (*pvc != NULL) |
383 |
if ((*pvc)->opaque == opaque)
|
384 |
return *pvc;
|
385 |
else
|
386 |
pvc = &(*pvc)->next; |
387 |
|
388 |
return NULL; |
389 |
} |
390 |
|
391 |
int qemu_can_send_packet(VLANClientState *vc1)
|
392 |
{ |
393 |
VLANState *vlan = vc1->vlan; |
394 |
VLANClientState *vc; |
395 |
|
396 |
for(vc = vlan->first_client; vc != NULL; vc = vc->next) { |
397 |
if (vc != vc1) {
|
398 |
if (vc->fd_can_read && vc->fd_can_read(vc->opaque))
|
399 |
return 1; |
400 |
} |
401 |
} |
402 |
return 0; |
403 |
} |
404 |
|
405 |
void qemu_send_packet(VLANClientState *vc1, const uint8_t *buf, int size) |
406 |
{ |
407 |
VLANState *vlan = vc1->vlan; |
408 |
VLANClientState *vc; |
409 |
|
410 |
if (vc1->link_down)
|
411 |
return;
|
412 |
|
413 |
#ifdef DEBUG_NET
|
414 |
printf("vlan %d send:\n", vlan->id);
|
415 |
hex_dump(stdout, buf, size); |
416 |
#endif
|
417 |
for(vc = vlan->first_client; vc != NULL; vc = vc->next) { |
418 |
if (vc != vc1 && !vc->link_down) {
|
419 |
vc->fd_read(vc->opaque, buf, size); |
420 |
} |
421 |
} |
422 |
} |
423 |
|
424 |
static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, |
425 |
int iovcnt)
|
426 |
{ |
427 |
uint8_t buffer[4096];
|
428 |
size_t offset = 0;
|
429 |
int i;
|
430 |
|
431 |
for (i = 0; i < iovcnt; i++) { |
432 |
size_t len; |
433 |
|
434 |
len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
|
435 |
memcpy(buffer + offset, iov[i].iov_base, len); |
436 |
offset += len; |
437 |
} |
438 |
|
439 |
vc->fd_read(vc->opaque, buffer, offset); |
440 |
|
441 |
return offset;
|
442 |
} |
443 |
|
444 |
static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) |
445 |
{ |
446 |
size_t offset = 0;
|
447 |
int i;
|
448 |
|
449 |
for (i = 0; i < iovcnt; i++) |
450 |
offset += iov[i].iov_len; |
451 |
return offset;
|
452 |
} |
453 |
|
454 |
ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov, |
455 |
int iovcnt)
|
456 |
{ |
457 |
VLANState *vlan = vc1->vlan; |
458 |
VLANClientState *vc; |
459 |
ssize_t max_len = 0;
|
460 |
|
461 |
if (vc1->link_down)
|
462 |
return calc_iov_length(iov, iovcnt);
|
463 |
|
464 |
for (vc = vlan->first_client; vc != NULL; vc = vc->next) { |
465 |
ssize_t len = 0;
|
466 |
|
467 |
if (vc == vc1)
|
468 |
continue;
|
469 |
|
470 |
if (vc->link_down)
|
471 |
len = calc_iov_length(iov, iovcnt); |
472 |
if (vc->fd_readv)
|
473 |
len = vc->fd_readv(vc->opaque, iov, iovcnt); |
474 |
else if (vc->fd_read) |
475 |
len = vc_sendv_compat(vc, iov, iovcnt); |
476 |
|
477 |
max_len = MAX(max_len, len); |
478 |
} |
479 |
|
480 |
return max_len;
|
481 |
} |
482 |
|
483 |
#if defined(CONFIG_SLIRP)
|
484 |
|
485 |
/* slirp network adapter */
|
486 |
|
487 |
static int slirp_inited; |
488 |
static int slirp_restrict; |
489 |
static char *slirp_ip; |
490 |
static VLANClientState *slirp_vc;
|
491 |
|
492 |
int slirp_can_output(void) |
493 |
{ |
494 |
return !slirp_vc || qemu_can_send_packet(slirp_vc);
|
495 |
} |
496 |
|
497 |
void slirp_output(const uint8_t *pkt, int pkt_len) |
498 |
{ |
499 |
#ifdef DEBUG_SLIRP
|
500 |
printf("slirp output:\n");
|
501 |
hex_dump(stdout, pkt, pkt_len); |
502 |
#endif
|
503 |
if (!slirp_vc)
|
504 |
return;
|
505 |
qemu_send_packet(slirp_vc, pkt, pkt_len); |
506 |
} |
507 |
|
508 |
int slirp_is_inited(void) |
509 |
{ |
510 |
return slirp_inited;
|
511 |
} |
512 |
|
513 |
static void slirp_receive(void *opaque, const uint8_t *buf, int size) |
514 |
{ |
515 |
#ifdef DEBUG_SLIRP
|
516 |
printf("slirp input:\n");
|
517 |
hex_dump(stdout, buf, size); |
518 |
#endif
|
519 |
slirp_input(buf, size); |
520 |
} |
521 |
|
522 |
static int net_slirp_init(VLANState *vlan, const char *model, const char *name) |
523 |
{ |
524 |
if (!slirp_inited) {
|
525 |
slirp_inited = 1;
|
526 |
slirp_init(slirp_restrict, slirp_ip); |
527 |
} |
528 |
slirp_vc = qemu_new_vlan_client(vlan, model, name, |
529 |
slirp_receive, NULL, NULL, NULL); |
530 |
slirp_vc->info_str[0] = '\0'; |
531 |
return 0; |
532 |
} |
533 |
|
534 |
void net_slirp_redir(const char *redir_str) |
535 |
{ |
536 |
int is_udp;
|
537 |
char buf[256], *r; |
538 |
const char *p; |
539 |
struct in_addr guest_addr;
|
540 |
int host_port, guest_port;
|
541 |
|
542 |
if (!slirp_inited) {
|
543 |
slirp_inited = 1;
|
544 |
slirp_init(slirp_restrict, slirp_ip); |
545 |
} |
546 |
|
547 |
p = redir_str; |
548 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
549 |
goto fail;
|
550 |
if (!strcmp(buf, "tcp")) { |
551 |
is_udp = 0;
|
552 |
} else if (!strcmp(buf, "udp")) { |
553 |
is_udp = 1;
|
554 |
} else {
|
555 |
goto fail;
|
556 |
} |
557 |
|
558 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
559 |
goto fail;
|
560 |
host_port = strtol(buf, &r, 0);
|
561 |
if (r == buf)
|
562 |
goto fail;
|
563 |
|
564 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
565 |
goto fail;
|
566 |
if (buf[0] == '\0') { |
567 |
pstrcpy(buf, sizeof(buf), "10.0.2.15"); |
568 |
} |
569 |
if (!inet_aton(buf, &guest_addr))
|
570 |
goto fail;
|
571 |
|
572 |
guest_port = strtol(p, &r, 0);
|
573 |
if (r == p)
|
574 |
goto fail;
|
575 |
|
576 |
if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) { |
577 |
fprintf(stderr, "qemu: could not set up redirection\n");
|
578 |
exit(1);
|
579 |
} |
580 |
return;
|
581 |
fail:
|
582 |
fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
|
583 |
exit(1);
|
584 |
} |
585 |
|
586 |
#ifndef _WIN32
|
587 |
|
588 |
static char smb_dir[1024]; |
589 |
|
590 |
static void erase_dir(char *dir_name) |
591 |
{ |
592 |
DIR *d; |
593 |
struct dirent *de;
|
594 |
char filename[1024]; |
595 |
|
596 |
/* erase all the files in the directory */
|
597 |
if ((d = opendir(dir_name)) != NULL) { |
598 |
for(;;) {
|
599 |
de = readdir(d); |
600 |
if (!de)
|
601 |
break;
|
602 |
if (strcmp(de->d_name, ".") != 0 && |
603 |
strcmp(de->d_name, "..") != 0) { |
604 |
snprintf(filename, sizeof(filename), "%s/%s", |
605 |
smb_dir, de->d_name); |
606 |
if (unlink(filename) != 0) /* is it a directory? */ |
607 |
erase_dir(filename); |
608 |
} |
609 |
} |
610 |
closedir(d); |
611 |
rmdir(dir_name); |
612 |
} |
613 |
} |
614 |
|
615 |
/* automatic user mode samba server configuration */
|
616 |
static void smb_exit(void) |
617 |
{ |
618 |
erase_dir(smb_dir); |
619 |
} |
620 |
|
621 |
/* automatic user mode samba server configuration */
|
622 |
void net_slirp_smb(const char *exported_dir) |
623 |
{ |
624 |
char smb_conf[1024]; |
625 |
char smb_cmdline[1024]; |
626 |
FILE *f; |
627 |
|
628 |
if (!slirp_inited) {
|
629 |
slirp_inited = 1;
|
630 |
slirp_init(slirp_restrict, slirp_ip); |
631 |
} |
632 |
|
633 |
/* XXX: better tmp dir construction */
|
634 |
snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid()); |
635 |
if (mkdir(smb_dir, 0700) < 0) { |
636 |
fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
|
637 |
exit(1);
|
638 |
} |
639 |
snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf"); |
640 |
|
641 |
f = fopen(smb_conf, "w");
|
642 |
if (!f) {
|
643 |
fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
|
644 |
exit(1);
|
645 |
} |
646 |
fprintf(f, |
647 |
"[global]\n"
|
648 |
"private dir=%s\n"
|
649 |
"smb ports=0\n"
|
650 |
"socket address=127.0.0.1\n"
|
651 |
"pid directory=%s\n"
|
652 |
"lock directory=%s\n"
|
653 |
"log file=%s/log.smbd\n"
|
654 |
"smb passwd file=%s/smbpasswd\n"
|
655 |
"security = share\n"
|
656 |
"[qemu]\n"
|
657 |
"path=%s\n"
|
658 |
"read only=no\n"
|
659 |
"guest ok=yes\n",
|
660 |
smb_dir, |
661 |
smb_dir, |
662 |
smb_dir, |
663 |
smb_dir, |
664 |
smb_dir, |
665 |
exported_dir |
666 |
); |
667 |
fclose(f); |
668 |
atexit(smb_exit); |
669 |
|
670 |
snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s", |
671 |
SMBD_COMMAND, smb_conf); |
672 |
|
673 |
slirp_add_exec(0, smb_cmdline, 4, 139); |
674 |
} |
675 |
|
676 |
#endif /* !defined(_WIN32) */ |
677 |
void do_info_slirp(Monitor *mon)
|
678 |
{ |
679 |
slirp_stats(); |
680 |
} |
681 |
|
682 |
struct VMChannel {
|
683 |
CharDriverState *hd; |
684 |
int port;
|
685 |
}; |
686 |
|
687 |
static int vmchannel_can_read(void *opaque) |
688 |
{ |
689 |
struct VMChannel *vmc = (struct VMChannel*)opaque; |
690 |
return slirp_socket_can_recv(4, vmc->port); |
691 |
} |
692 |
|
693 |
static void vmchannel_read(void *opaque, const uint8_t *buf, int size) |
694 |
{ |
695 |
struct VMChannel *vmc = (struct VMChannel*)opaque; |
696 |
slirp_socket_recv(4, vmc->port, buf, size);
|
697 |
} |
698 |
|
699 |
#endif /* CONFIG_SLIRP */ |
700 |
|
701 |
#if !defined(_WIN32)
|
702 |
|
703 |
typedef struct TAPState { |
704 |
VLANClientState *vc; |
705 |
int fd;
|
706 |
char down_script[1024]; |
707 |
char down_script_arg[128]; |
708 |
} TAPState; |
709 |
|
710 |
static int launch_script(const char *setup_script, const char *ifname, int fd); |
711 |
|
712 |
static ssize_t tap_receive_iov(void *opaque, const struct iovec *iov, |
713 |
int iovcnt)
|
714 |
{ |
715 |
TAPState *s = opaque; |
716 |
ssize_t len; |
717 |
|
718 |
do {
|
719 |
len = writev(s->fd, iov, iovcnt); |
720 |
} while (len == -1 && (errno == EINTR || errno == EAGAIN)); |
721 |
|
722 |
return len;
|
723 |
} |
724 |
|
725 |
static void tap_receive(void *opaque, const uint8_t *buf, int size) |
726 |
{ |
727 |
TAPState *s = opaque; |
728 |
int ret;
|
729 |
for(;;) {
|
730 |
ret = write(s->fd, buf, size); |
731 |
if (ret < 0 && (errno == EINTR || errno == EAGAIN)) { |
732 |
} else {
|
733 |
break;
|
734 |
} |
735 |
} |
736 |
} |
737 |
|
738 |
static void tap_send(void *opaque) |
739 |
{ |
740 |
TAPState *s = opaque; |
741 |
uint8_t buf[4096];
|
742 |
int size;
|
743 |
|
744 |
#ifdef __sun__
|
745 |
struct strbuf sbuf;
|
746 |
int f = 0; |
747 |
sbuf.maxlen = sizeof(buf);
|
748 |
sbuf.buf = (char *)buf;
|
749 |
size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1; |
750 |
#else
|
751 |
size = read(s->fd, buf, sizeof(buf));
|
752 |
#endif
|
753 |
if (size > 0) { |
754 |
qemu_send_packet(s->vc, buf, size); |
755 |
} |
756 |
} |
757 |
|
758 |
static void tap_cleanup(VLANClientState *vc) |
759 |
{ |
760 |
TAPState *s = vc->opaque; |
761 |
|
762 |
if (s->down_script[0]) |
763 |
launch_script(s->down_script, s->down_script_arg, s->fd); |
764 |
|
765 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
766 |
close(s->fd); |
767 |
qemu_free(s); |
768 |
} |
769 |
|
770 |
/* fd support */
|
771 |
|
772 |
static TAPState *net_tap_fd_init(VLANState *vlan,
|
773 |
const char *model, |
774 |
const char *name, |
775 |
int fd)
|
776 |
{ |
777 |
TAPState *s; |
778 |
|
779 |
s = qemu_mallocz(sizeof(TAPState));
|
780 |
s->fd = fd; |
781 |
s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive, |
782 |
NULL, tap_cleanup, s);
|
783 |
s->vc->fd_readv = tap_receive_iov; |
784 |
qemu_set_fd_handler(s->fd, tap_send, NULL, s);
|
785 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd); |
786 |
return s;
|
787 |
} |
788 |
|
789 |
#if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
|
790 |
static int tap_open(char *ifname, int ifname_size) |
791 |
{ |
792 |
int fd;
|
793 |
char *dev;
|
794 |
struct stat s;
|
795 |
|
796 |
TFR(fd = open("/dev/tap", O_RDWR));
|
797 |
if (fd < 0) { |
798 |
fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
|
799 |
return -1; |
800 |
} |
801 |
|
802 |
fstat(fd, &s); |
803 |
dev = devname(s.st_rdev, S_IFCHR); |
804 |
pstrcpy(ifname, ifname_size, dev); |
805 |
|
806 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
807 |
return fd;
|
808 |
} |
809 |
#elif defined(__sun__)
|
810 |
#define TUNNEWPPA (('T'<<16) | 0x0001) |
811 |
/*
|
812 |
* Allocate TAP device, returns opened fd.
|
813 |
* Stores dev name in the first arg(must be large enough).
|
814 |
*/
|
815 |
static int tap_alloc(char *dev, size_t dev_size) |
816 |
{ |
817 |
int tap_fd, if_fd, ppa = -1; |
818 |
static int ip_fd = 0; |
819 |
char *ptr;
|
820 |
|
821 |
static int arp_fd = 0; |
822 |
int ip_muxid, arp_muxid;
|
823 |
struct strioctl strioc_if, strioc_ppa;
|
824 |
int link_type = I_PLINK;;
|
825 |
struct lifreq ifr;
|
826 |
char actual_name[32] = ""; |
827 |
|
828 |
memset(&ifr, 0x0, sizeof(ifr)); |
829 |
|
830 |
if( *dev ){
|
831 |
ptr = dev; |
832 |
while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++; |
833 |
ppa = atoi(ptr); |
834 |
} |
835 |
|
836 |
/* Check if IP device was opened */
|
837 |
if( ip_fd )
|
838 |
close(ip_fd); |
839 |
|
840 |
TFR(ip_fd = open("/dev/udp", O_RDWR, 0)); |
841 |
if (ip_fd < 0) { |
842 |
syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
|
843 |
return -1; |
844 |
} |
845 |
|
846 |
TFR(tap_fd = open("/dev/tap", O_RDWR, 0)); |
847 |
if (tap_fd < 0) { |
848 |
syslog(LOG_ERR, "Can't open /dev/tap");
|
849 |
return -1; |
850 |
} |
851 |
|
852 |
/* Assign a new PPA and get its unit number. */
|
853 |
strioc_ppa.ic_cmd = TUNNEWPPA; |
854 |
strioc_ppa.ic_timout = 0;
|
855 |
strioc_ppa.ic_len = sizeof(ppa);
|
856 |
strioc_ppa.ic_dp = (char *)&ppa;
|
857 |
if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0) |
858 |
syslog (LOG_ERR, "Can't assign new interface");
|
859 |
|
860 |
TFR(if_fd = open("/dev/tap", O_RDWR, 0)); |
861 |
if (if_fd < 0) { |
862 |
syslog(LOG_ERR, "Can't open /dev/tap (2)");
|
863 |
return -1; |
864 |
} |
865 |
if(ioctl(if_fd, I_PUSH, "ip") < 0){ |
866 |
syslog(LOG_ERR, "Can't push IP module");
|
867 |
return -1; |
868 |
} |
869 |
|
870 |
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0) |
871 |
syslog(LOG_ERR, "Can't get flags\n");
|
872 |
|
873 |
snprintf (actual_name, 32, "tap%d", ppa); |
874 |
pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
|
875 |
|
876 |
ifr.lifr_ppa = ppa; |
877 |
/* Assign ppa according to the unit number returned by tun device */
|
878 |
|
879 |
if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0) |
880 |
syslog (LOG_ERR, "Can't set PPA %d", ppa);
|
881 |
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0) |
882 |
syslog (LOG_ERR, "Can't get flags\n");
|
883 |
/* Push arp module to if_fd */
|
884 |
if (ioctl (if_fd, I_PUSH, "arp") < 0) |
885 |
syslog (LOG_ERR, "Can't push ARP module (2)");
|
886 |
|
887 |
/* Push arp module to ip_fd */
|
888 |
if (ioctl (ip_fd, I_POP, NULL) < 0) |
889 |
syslog (LOG_ERR, "I_POP failed\n");
|
890 |
if (ioctl (ip_fd, I_PUSH, "arp") < 0) |
891 |
syslog (LOG_ERR, "Can't push ARP module (3)\n");
|
892 |
/* Open arp_fd */
|
893 |
TFR(arp_fd = open ("/dev/tap", O_RDWR, 0)); |
894 |
if (arp_fd < 0) |
895 |
syslog (LOG_ERR, "Can't open %s\n", "/dev/tap"); |
896 |
|
897 |
/* Set ifname to arp */
|
898 |
strioc_if.ic_cmd = SIOCSLIFNAME; |
899 |
strioc_if.ic_timout = 0;
|
900 |
strioc_if.ic_len = sizeof(ifr);
|
901 |
strioc_if.ic_dp = (char *)𝔦
|
902 |
if (ioctl(arp_fd, I_STR, &strioc_if) < 0){ |
903 |
syslog (LOG_ERR, "Can't set ifname to arp\n");
|
904 |
} |
905 |
|
906 |
if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){ |
907 |
syslog(LOG_ERR, "Can't link TAP device to IP");
|
908 |
return -1; |
909 |
} |
910 |
|
911 |
if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0) |
912 |
syslog (LOG_ERR, "Can't link TAP device to ARP");
|
913 |
|
914 |
close (if_fd); |
915 |
|
916 |
memset(&ifr, 0x0, sizeof(ifr)); |
917 |
pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
|
918 |
ifr.lifr_ip_muxid = ip_muxid; |
919 |
ifr.lifr_arp_muxid = arp_muxid; |
920 |
|
921 |
if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0) |
922 |
{ |
923 |
ioctl (ip_fd, I_PUNLINK , arp_muxid); |
924 |
ioctl (ip_fd, I_PUNLINK, ip_muxid); |
925 |
syslog (LOG_ERR, "Can't set multiplexor id");
|
926 |
} |
927 |
|
928 |
snprintf(dev, dev_size, "tap%d", ppa);
|
929 |
return tap_fd;
|
930 |
} |
931 |
|
932 |
static int tap_open(char *ifname, int ifname_size) |
933 |
{ |
934 |
char dev[10]=""; |
935 |
int fd;
|
936 |
if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){ |
937 |
fprintf(stderr, "Cannot allocate TAP device\n");
|
938 |
return -1; |
939 |
} |
940 |
pstrcpy(ifname, ifname_size, dev); |
941 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
942 |
return fd;
|
943 |
} |
944 |
#elif defined (_AIX)
|
945 |
static int tap_open(char *ifname, int ifname_size) |
946 |
{ |
947 |
fprintf (stderr, "no tap on AIX\n");
|
948 |
return -1; |
949 |
} |
950 |
#else
|
951 |
static int tap_open(char *ifname, int ifname_size) |
952 |
{ |
953 |
struct ifreq ifr;
|
954 |
int fd, ret;
|
955 |
|
956 |
TFR(fd = open("/dev/net/tun", O_RDWR));
|
957 |
if (fd < 0) { |
958 |
fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
|
959 |
return -1; |
960 |
} |
961 |
memset(&ifr, 0, sizeof(ifr)); |
962 |
ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
963 |
if (ifname[0] != '\0') |
964 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname); |
965 |
else
|
966 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
|
967 |
ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
|
968 |
if (ret != 0) { |
969 |
fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
|
970 |
close(fd); |
971 |
return -1; |
972 |
} |
973 |
pstrcpy(ifname, ifname_size, ifr.ifr_name); |
974 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
975 |
return fd;
|
976 |
} |
977 |
#endif
|
978 |
|
979 |
static int launch_script(const char *setup_script, const char *ifname, int fd) |
980 |
{ |
981 |
int pid, status;
|
982 |
char *args[3]; |
983 |
char **parg;
|
984 |
|
985 |
/* try to launch network script */
|
986 |
pid = fork(); |
987 |
if (pid >= 0) { |
988 |
if (pid == 0) { |
989 |
int open_max = sysconf (_SC_OPEN_MAX), i;
|
990 |
for (i = 0; i < open_max; i++) |
991 |
if (i != STDIN_FILENO &&
|
992 |
i != STDOUT_FILENO && |
993 |
i != STDERR_FILENO && |
994 |
i != fd) |
995 |
close(i); |
996 |
|
997 |
parg = args; |
998 |
*parg++ = (char *)setup_script;
|
999 |
*parg++ = (char *)ifname;
|
1000 |
*parg++ = NULL;
|
1001 |
execv(setup_script, args); |
1002 |
_exit(1);
|
1003 |
} |
1004 |
while (waitpid(pid, &status, 0) != pid); |
1005 |
if (!WIFEXITED(status) ||
|
1006 |
WEXITSTATUS(status) != 0) {
|
1007 |
fprintf(stderr, "%s: could not launch network script\n",
|
1008 |
setup_script); |
1009 |
return -1; |
1010 |
} |
1011 |
} |
1012 |
return 0; |
1013 |
} |
1014 |
|
1015 |
static int net_tap_init(VLANState *vlan, const char *model, |
1016 |
const char *name, const char *ifname1, |
1017 |
const char *setup_script, const char *down_script) |
1018 |
{ |
1019 |
TAPState *s; |
1020 |
int fd;
|
1021 |
char ifname[128]; |
1022 |
|
1023 |
if (ifname1 != NULL) |
1024 |
pstrcpy(ifname, sizeof(ifname), ifname1);
|
1025 |
else
|
1026 |
ifname[0] = '\0'; |
1027 |
TFR(fd = tap_open(ifname, sizeof(ifname)));
|
1028 |
if (fd < 0) |
1029 |
return -1; |
1030 |
|
1031 |
if (!setup_script || !strcmp(setup_script, "no")) |
1032 |
setup_script = "";
|
1033 |
if (setup_script[0] != '\0') { |
1034 |
if (launch_script(setup_script, ifname, fd))
|
1035 |
return -1; |
1036 |
} |
1037 |
s = net_tap_fd_init(vlan, model, name, fd); |
1038 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1039 |
"ifname=%s,script=%s,downscript=%s",
|
1040 |
ifname, setup_script, down_script); |
1041 |
if (down_script && strcmp(down_script, "no")) { |
1042 |
snprintf(s->down_script, sizeof(s->down_script), "%s", down_script); |
1043 |
snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname); |
1044 |
} |
1045 |
return 0; |
1046 |
} |
1047 |
|
1048 |
#endif /* !_WIN32 */ |
1049 |
|
1050 |
#if defined(CONFIG_VDE)
|
1051 |
typedef struct VDEState { |
1052 |
VLANClientState *vc; |
1053 |
VDECONN *vde; |
1054 |
} VDEState; |
1055 |
|
1056 |
static void vde_to_qemu(void *opaque) |
1057 |
{ |
1058 |
VDEState *s = opaque; |
1059 |
uint8_t buf[4096];
|
1060 |
int size;
|
1061 |
|
1062 |
size = vde_recv(s->vde, buf, sizeof(buf), 0); |
1063 |
if (size > 0) { |
1064 |
qemu_send_packet(s->vc, buf, size); |
1065 |
} |
1066 |
} |
1067 |
|
1068 |
static void vde_from_qemu(void *opaque, const uint8_t *buf, int size) |
1069 |
{ |
1070 |
VDEState *s = opaque; |
1071 |
int ret;
|
1072 |
for(;;) {
|
1073 |
ret = vde_send(s->vde, buf, size, 0);
|
1074 |
if (ret < 0 && errno == EINTR) { |
1075 |
} else {
|
1076 |
break;
|
1077 |
} |
1078 |
} |
1079 |
} |
1080 |
|
1081 |
static void vde_cleanup(VLANClientState *vc) |
1082 |
{ |
1083 |
VDEState *s = vc->opaque; |
1084 |
qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL); |
1085 |
vde_close(s->vde); |
1086 |
qemu_free(s); |
1087 |
} |
1088 |
|
1089 |
static int net_vde_init(VLANState *vlan, const char *model, |
1090 |
const char *name, const char *sock, |
1091 |
int port, const char *group, int mode) |
1092 |
{ |
1093 |
VDEState *s; |
1094 |
char *init_group = strlen(group) ? (char *)group : NULL; |
1095 |
char *init_sock = strlen(sock) ? (char *)sock : NULL; |
1096 |
|
1097 |
struct vde_open_args args = {
|
1098 |
.port = port, |
1099 |
.group = init_group, |
1100 |
.mode = mode, |
1101 |
}; |
1102 |
|
1103 |
s = qemu_mallocz(sizeof(VDEState));
|
1104 |
s->vde = vde_open(init_sock, "QEMU", &args);
|
1105 |
if (!s->vde){
|
1106 |
free(s); |
1107 |
return -1; |
1108 |
} |
1109 |
s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu, |
1110 |
NULL, vde_cleanup, s);
|
1111 |
qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
|
1112 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d", |
1113 |
sock, vde_datafd(s->vde)); |
1114 |
return 0; |
1115 |
} |
1116 |
#endif
|
1117 |
|
1118 |
/* network connection */
|
1119 |
typedef struct NetSocketState { |
1120 |
VLANClientState *vc; |
1121 |
int fd;
|
1122 |
int state; /* 0 = getting length, 1 = getting data */ |
1123 |
unsigned int index; |
1124 |
unsigned int packet_len; |
1125 |
uint8_t buf[4096];
|
1126 |
struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ |
1127 |
} NetSocketState; |
1128 |
|
1129 |
typedef struct NetSocketListenState { |
1130 |
VLANState *vlan; |
1131 |
char *model;
|
1132 |
char *name;
|
1133 |
int fd;
|
1134 |
} NetSocketListenState; |
1135 |
|
1136 |
/* XXX: we consider we can send the whole packet without blocking */
|
1137 |
static void net_socket_receive(void *opaque, const uint8_t *buf, int size) |
1138 |
{ |
1139 |
NetSocketState *s = opaque; |
1140 |
uint32_t len; |
1141 |
len = htonl(size); |
1142 |
|
1143 |
send_all(s->fd, (const uint8_t *)&len, sizeof(len)); |
1144 |
send_all(s->fd, buf, size); |
1145 |
} |
1146 |
|
1147 |
static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size) |
1148 |
{ |
1149 |
NetSocketState *s = opaque; |
1150 |
sendto(s->fd, buf, size, 0,
|
1151 |
(struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst)); |
1152 |
} |
1153 |
|
1154 |
static void net_socket_send(void *opaque) |
1155 |
{ |
1156 |
NetSocketState *s = opaque; |
1157 |
int size, err;
|
1158 |
unsigned l;
|
1159 |
uint8_t buf1[4096];
|
1160 |
const uint8_t *buf;
|
1161 |
|
1162 |
size = recv(s->fd, buf1, sizeof(buf1), 0); |
1163 |
if (size < 0) { |
1164 |
err = socket_error(); |
1165 |
if (err != EWOULDBLOCK)
|
1166 |
goto eoc;
|
1167 |
} else if (size == 0) { |
1168 |
/* end of connection */
|
1169 |
eoc:
|
1170 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1171 |
closesocket(s->fd); |
1172 |
return;
|
1173 |
} |
1174 |
buf = buf1; |
1175 |
while (size > 0) { |
1176 |
/* reassemble a packet from the network */
|
1177 |
switch(s->state) {
|
1178 |
case 0: |
1179 |
l = 4 - s->index;
|
1180 |
if (l > size)
|
1181 |
l = size; |
1182 |
memcpy(s->buf + s->index, buf, l); |
1183 |
buf += l; |
1184 |
size -= l; |
1185 |
s->index += l; |
1186 |
if (s->index == 4) { |
1187 |
/* got length */
|
1188 |
s->packet_len = ntohl(*(uint32_t *)s->buf); |
1189 |
s->index = 0;
|
1190 |
s->state = 1;
|
1191 |
} |
1192 |
break;
|
1193 |
case 1: |
1194 |
l = s->packet_len - s->index; |
1195 |
if (l > size)
|
1196 |
l = size; |
1197 |
if (s->index + l <= sizeof(s->buf)) { |
1198 |
memcpy(s->buf + s->index, buf, l); |
1199 |
} else {
|
1200 |
fprintf(stderr, "serious error: oversized packet received,"
|
1201 |
"connection terminated.\n");
|
1202 |
s->state = 0;
|
1203 |
goto eoc;
|
1204 |
} |
1205 |
|
1206 |
s->index += l; |
1207 |
buf += l; |
1208 |
size -= l; |
1209 |
if (s->index >= s->packet_len) {
|
1210 |
qemu_send_packet(s->vc, s->buf, s->packet_len); |
1211 |
s->index = 0;
|
1212 |
s->state = 0;
|
1213 |
} |
1214 |
break;
|
1215 |
} |
1216 |
} |
1217 |
} |
1218 |
|
1219 |
static void net_socket_send_dgram(void *opaque) |
1220 |
{ |
1221 |
NetSocketState *s = opaque; |
1222 |
int size;
|
1223 |
|
1224 |
size = recv(s->fd, s->buf, sizeof(s->buf), 0); |
1225 |
if (size < 0) |
1226 |
return;
|
1227 |
if (size == 0) { |
1228 |
/* end of connection */
|
1229 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1230 |
return;
|
1231 |
} |
1232 |
qemu_send_packet(s->vc, s->buf, size); |
1233 |
} |
1234 |
|
1235 |
static int net_socket_mcast_create(struct sockaddr_in *mcastaddr) |
1236 |
{ |
1237 |
struct ip_mreq imr;
|
1238 |
int fd;
|
1239 |
int val, ret;
|
1240 |
if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
|
1241 |
fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
|
1242 |
inet_ntoa(mcastaddr->sin_addr), |
1243 |
(int)ntohl(mcastaddr->sin_addr.s_addr));
|
1244 |
return -1; |
1245 |
|
1246 |
} |
1247 |
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
1248 |
if (fd < 0) { |
1249 |
perror("socket(PF_INET, SOCK_DGRAM)");
|
1250 |
return -1; |
1251 |
} |
1252 |
|
1253 |
val = 1;
|
1254 |
ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, |
1255 |
(const char *)&val, sizeof(val)); |
1256 |
if (ret < 0) { |
1257 |
perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
|
1258 |
goto fail;
|
1259 |
} |
1260 |
|
1261 |
ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); |
1262 |
if (ret < 0) { |
1263 |
perror("bind");
|
1264 |
goto fail;
|
1265 |
} |
1266 |
|
1267 |
/* Add host to multicast group */
|
1268 |
imr.imr_multiaddr = mcastaddr->sin_addr; |
1269 |
imr.imr_interface.s_addr = htonl(INADDR_ANY); |
1270 |
|
1271 |
ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, |
1272 |
(const char *)&imr, sizeof(struct ip_mreq)); |
1273 |
if (ret < 0) { |
1274 |
perror("setsockopt(IP_ADD_MEMBERSHIP)");
|
1275 |
goto fail;
|
1276 |
} |
1277 |
|
1278 |
/* Force mcast msgs to loopback (eg. several QEMUs in same host */
|
1279 |
val = 1;
|
1280 |
ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, |
1281 |
(const char *)&val, sizeof(val)); |
1282 |
if (ret < 0) { |
1283 |
perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
|
1284 |
goto fail;
|
1285 |
} |
1286 |
|
1287 |
socket_set_nonblock(fd); |
1288 |
return fd;
|
1289 |
fail:
|
1290 |
if (fd >= 0) |
1291 |
closesocket(fd); |
1292 |
return -1; |
1293 |
} |
1294 |
|
1295 |
static void net_socket_cleanup(VLANClientState *vc) |
1296 |
{ |
1297 |
NetSocketState *s = vc->opaque; |
1298 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1299 |
close(s->fd); |
1300 |
qemu_free(s); |
1301 |
} |
1302 |
|
1303 |
static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
|
1304 |
const char *model, |
1305 |
const char *name, |
1306 |
int fd, int is_connected) |
1307 |
{ |
1308 |
struct sockaddr_in saddr;
|
1309 |
int newfd;
|
1310 |
socklen_t saddr_len; |
1311 |
NetSocketState *s; |
1312 |
|
1313 |
/* fd passed: multicast: "learn" dgram_dst address from bound address and save it
|
1314 |
* Because this may be "shared" socket from a "master" process, datagrams would be recv()
|
1315 |
* by ONLY ONE process: we must "clone" this dgram socket --jjo
|
1316 |
*/
|
1317 |
|
1318 |
if (is_connected) {
|
1319 |
if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) { |
1320 |
/* must be bound */
|
1321 |
if (saddr.sin_addr.s_addr==0) { |
1322 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
|
1323 |
fd); |
1324 |
return NULL; |
1325 |
} |
1326 |
/* clone dgram socket */
|
1327 |
newfd = net_socket_mcast_create(&saddr); |
1328 |
if (newfd < 0) { |
1329 |
/* error already reported by net_socket_mcast_create() */
|
1330 |
close(fd); |
1331 |
return NULL; |
1332 |
} |
1333 |
/* clone newfd to fd, close newfd */
|
1334 |
dup2(newfd, fd); |
1335 |
close(newfd); |
1336 |
|
1337 |
} else {
|
1338 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
|
1339 |
fd, strerror(errno)); |
1340 |
return NULL; |
1341 |
} |
1342 |
} |
1343 |
|
1344 |
s = qemu_mallocz(sizeof(NetSocketState));
|
1345 |
s->fd = fd; |
1346 |
|
1347 |
s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram, |
1348 |
NULL, net_socket_cleanup, s);
|
1349 |
qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
|
1350 |
|
1351 |
/* mcast: save bound address as dst */
|
1352 |
if (is_connected) s->dgram_dst=saddr;
|
1353 |
|
1354 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1355 |
"socket: fd=%d (%s mcast=%s:%d)",
|
1356 |
fd, is_connected? "cloned" : "", |
1357 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1358 |
return s;
|
1359 |
} |
1360 |
|
1361 |
static void net_socket_connect(void *opaque) |
1362 |
{ |
1363 |
NetSocketState *s = opaque; |
1364 |
qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
|
1365 |
} |
1366 |
|
1367 |
static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
|
1368 |
const char *model, |
1369 |
const char *name, |
1370 |
int fd, int is_connected) |
1371 |
{ |
1372 |
NetSocketState *s; |
1373 |
s = qemu_mallocz(sizeof(NetSocketState));
|
1374 |
s->fd = fd; |
1375 |
s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive, |
1376 |
NULL, net_socket_cleanup, s);
|
1377 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1378 |
"socket: fd=%d", fd);
|
1379 |
if (is_connected) {
|
1380 |
net_socket_connect(s); |
1381 |
} else {
|
1382 |
qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
|
1383 |
} |
1384 |
return s;
|
1385 |
} |
1386 |
|
1387 |
static NetSocketState *net_socket_fd_init(VLANState *vlan,
|
1388 |
const char *model, const char *name, |
1389 |
int fd, int is_connected) |
1390 |
{ |
1391 |
int so_type=-1, optlen=sizeof(so_type); |
1392 |
|
1393 |
if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, |
1394 |
(socklen_t *)&optlen)< 0) {
|
1395 |
fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
|
1396 |
return NULL; |
1397 |
} |
1398 |
switch(so_type) {
|
1399 |
case SOCK_DGRAM:
|
1400 |
return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
|
1401 |
case SOCK_STREAM:
|
1402 |
return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
|
1403 |
default:
|
1404 |
/* who knows ... this could be a eg. a pty, do warn and continue as stream */
|
1405 |
fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
|
1406 |
return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
|
1407 |
} |
1408 |
return NULL; |
1409 |
} |
1410 |
|
1411 |
static void net_socket_accept(void *opaque) |
1412 |
{ |
1413 |
NetSocketListenState *s = opaque; |
1414 |
NetSocketState *s1; |
1415 |
struct sockaddr_in saddr;
|
1416 |
socklen_t len; |
1417 |
int fd;
|
1418 |
|
1419 |
for(;;) {
|
1420 |
len = sizeof(saddr);
|
1421 |
fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
|
1422 |
if (fd < 0 && errno != EINTR) { |
1423 |
return;
|
1424 |
} else if (fd >= 0) { |
1425 |
break;
|
1426 |
} |
1427 |
} |
1428 |
s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
|
1429 |
if (!s1) {
|
1430 |
closesocket(fd); |
1431 |
} else {
|
1432 |
snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
|
1433 |
"socket: connection from %s:%d",
|
1434 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1435 |
} |
1436 |
} |
1437 |
|
1438 |
static int net_socket_listen_init(VLANState *vlan, |
1439 |
const char *model, |
1440 |
const char *name, |
1441 |
const char *host_str) |
1442 |
{ |
1443 |
NetSocketListenState *s; |
1444 |
int fd, val, ret;
|
1445 |
struct sockaddr_in saddr;
|
1446 |
|
1447 |
if (parse_host_port(&saddr, host_str) < 0) |
1448 |
return -1; |
1449 |
|
1450 |
s = qemu_mallocz(sizeof(NetSocketListenState));
|
1451 |
|
1452 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
1453 |
if (fd < 0) { |
1454 |
perror("socket");
|
1455 |
return -1; |
1456 |
} |
1457 |
socket_set_nonblock(fd); |
1458 |
|
1459 |
/* allow fast reuse */
|
1460 |
val = 1;
|
1461 |
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val)); |
1462 |
|
1463 |
ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
1464 |
if (ret < 0) { |
1465 |
perror("bind");
|
1466 |
return -1; |
1467 |
} |
1468 |
ret = listen(fd, 0);
|
1469 |
if (ret < 0) { |
1470 |
perror("listen");
|
1471 |
return -1; |
1472 |
} |
1473 |
s->vlan = vlan; |
1474 |
s->model = strdup(model); |
1475 |
s->name = strdup(name); |
1476 |
s->fd = fd; |
1477 |
qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
|
1478 |
return 0; |
1479 |
} |
1480 |
|
1481 |
static int net_socket_connect_init(VLANState *vlan, |
1482 |
const char *model, |
1483 |
const char *name, |
1484 |
const char *host_str) |
1485 |
{ |
1486 |
NetSocketState *s; |
1487 |
int fd, connected, ret, err;
|
1488 |
struct sockaddr_in saddr;
|
1489 |
|
1490 |
if (parse_host_port(&saddr, host_str) < 0) |
1491 |
return -1; |
1492 |
|
1493 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
1494 |
if (fd < 0) { |
1495 |
perror("socket");
|
1496 |
return -1; |
1497 |
} |
1498 |
socket_set_nonblock(fd); |
1499 |
|
1500 |
connected = 0;
|
1501 |
for(;;) {
|
1502 |
ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
1503 |
if (ret < 0) { |
1504 |
err = socket_error(); |
1505 |
if (err == EINTR || err == EWOULDBLOCK) {
|
1506 |
} else if (err == EINPROGRESS) { |
1507 |
break;
|
1508 |
#ifdef _WIN32
|
1509 |
} else if (err == WSAEALREADY) { |
1510 |
break;
|
1511 |
#endif
|
1512 |
} else {
|
1513 |
perror("connect");
|
1514 |
closesocket(fd); |
1515 |
return -1; |
1516 |
} |
1517 |
} else {
|
1518 |
connected = 1;
|
1519 |
break;
|
1520 |
} |
1521 |
} |
1522 |
s = net_socket_fd_init(vlan, model, name, fd, connected); |
1523 |
if (!s)
|
1524 |
return -1; |
1525 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1526 |
"socket: connect to %s:%d",
|
1527 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1528 |
return 0; |
1529 |
} |
1530 |
|
1531 |
static int net_socket_mcast_init(VLANState *vlan, |
1532 |
const char *model, |
1533 |
const char *name, |
1534 |
const char *host_str) |
1535 |
{ |
1536 |
NetSocketState *s; |
1537 |
int fd;
|
1538 |
struct sockaddr_in saddr;
|
1539 |
|
1540 |
if (parse_host_port(&saddr, host_str) < 0) |
1541 |
return -1; |
1542 |
|
1543 |
|
1544 |
fd = net_socket_mcast_create(&saddr); |
1545 |
if (fd < 0) |
1546 |
return -1; |
1547 |
|
1548 |
s = net_socket_fd_init(vlan, model, name, fd, 0);
|
1549 |
if (!s)
|
1550 |
return -1; |
1551 |
|
1552 |
s->dgram_dst = saddr; |
1553 |
|
1554 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1555 |
"socket: mcast=%s:%d",
|
1556 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1557 |
return 0; |
1558 |
|
1559 |
} |
1560 |
|
1561 |
/* find or alloc a new VLAN */
|
1562 |
VLANState *qemu_find_vlan(int id)
|
1563 |
{ |
1564 |
VLANState **pvlan, *vlan; |
1565 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
1566 |
if (vlan->id == id)
|
1567 |
return vlan;
|
1568 |
} |
1569 |
vlan = qemu_mallocz(sizeof(VLANState));
|
1570 |
vlan->id = id; |
1571 |
vlan->next = NULL;
|
1572 |
pvlan = &first_vlan; |
1573 |
while (*pvlan != NULL) |
1574 |
pvlan = &(*pvlan)->next; |
1575 |
*pvlan = vlan; |
1576 |
return vlan;
|
1577 |
} |
1578 |
|
1579 |
static int nic_get_free_idx(void) |
1580 |
{ |
1581 |
int index;
|
1582 |
|
1583 |
for (index = 0; index < MAX_NICS; index++) |
1584 |
if (!nd_table[index].used)
|
1585 |
return index;
|
1586 |
return -1; |
1587 |
} |
1588 |
|
1589 |
void qemu_check_nic_model(NICInfo *nd, const char *model) |
1590 |
{ |
1591 |
const char *models[2]; |
1592 |
|
1593 |
models[0] = model;
|
1594 |
models[1] = NULL; |
1595 |
|
1596 |
qemu_check_nic_model_list(nd, models, model); |
1597 |
} |
1598 |
|
1599 |
void qemu_check_nic_model_list(NICInfo *nd, const char * const *models, |
1600 |
const char *default_model) |
1601 |
{ |
1602 |
int i, exit_status = 0; |
1603 |
|
1604 |
if (!nd->model)
|
1605 |
nd->model = strdup(default_model); |
1606 |
|
1607 |
if (strcmp(nd->model, "?") != 0) { |
1608 |
for (i = 0 ; models[i]; i++) |
1609 |
if (strcmp(nd->model, models[i]) == 0) |
1610 |
return;
|
1611 |
|
1612 |
fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
|
1613 |
exit_status = 1;
|
1614 |
} |
1615 |
|
1616 |
fprintf(stderr, "qemu: Supported NIC models: ");
|
1617 |
for (i = 0 ; models[i]; i++) |
1618 |
fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); |
1619 |
|
1620 |
exit(exit_status); |
1621 |
} |
1622 |
|
1623 |
int net_client_init(const char *device, const char *p) |
1624 |
{ |
1625 |
char buf[1024]; |
1626 |
int vlan_id, ret;
|
1627 |
VLANState *vlan; |
1628 |
char *name = NULL; |
1629 |
|
1630 |
vlan_id = 0;
|
1631 |
if (get_param_value(buf, sizeof(buf), "vlan", p)) { |
1632 |
vlan_id = strtol(buf, NULL, 0); |
1633 |
} |
1634 |
vlan = qemu_find_vlan(vlan_id); |
1635 |
|
1636 |
if (get_param_value(buf, sizeof(buf), "name", p)) { |
1637 |
name = strdup(buf); |
1638 |
} |
1639 |
if (!strcmp(device, "nic")) { |
1640 |
NICInfo *nd; |
1641 |
uint8_t *macaddr; |
1642 |
int idx = nic_get_free_idx();
|
1643 |
|
1644 |
if (idx == -1 || nb_nics >= MAX_NICS) { |
1645 |
fprintf(stderr, "Too Many NICs\n");
|
1646 |
ret = -1;
|
1647 |
goto out;
|
1648 |
} |
1649 |
nd = &nd_table[idx]; |
1650 |
macaddr = nd->macaddr; |
1651 |
macaddr[0] = 0x52; |
1652 |
macaddr[1] = 0x54; |
1653 |
macaddr[2] = 0x00; |
1654 |
macaddr[3] = 0x12; |
1655 |
macaddr[4] = 0x34; |
1656 |
macaddr[5] = 0x56 + idx; |
1657 |
|
1658 |
if (get_param_value(buf, sizeof(buf), "macaddr", p)) { |
1659 |
if (parse_macaddr(macaddr, buf) < 0) { |
1660 |
fprintf(stderr, "invalid syntax for ethernet address\n");
|
1661 |
ret = -1;
|
1662 |
goto out;
|
1663 |
} |
1664 |
} |
1665 |
if (get_param_value(buf, sizeof(buf), "model", p)) { |
1666 |
nd->model = strdup(buf); |
1667 |
} |
1668 |
nd->vlan = vlan; |
1669 |
nd->name = name; |
1670 |
nd->used = 1;
|
1671 |
name = NULL;
|
1672 |
nb_nics++; |
1673 |
vlan->nb_guest_devs++; |
1674 |
ret = idx; |
1675 |
} else
|
1676 |
if (!strcmp(device, "none")) { |
1677 |
/* does nothing. It is needed to signal that no network cards
|
1678 |
are wanted */
|
1679 |
ret = 0;
|
1680 |
} else
|
1681 |
#ifdef CONFIG_SLIRP
|
1682 |
if (!strcmp(device, "user")) { |
1683 |
if (get_param_value(buf, sizeof(buf), "hostname", p)) { |
1684 |
pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
|
1685 |
} |
1686 |
if (get_param_value(buf, sizeof(buf), "restrict", p)) { |
1687 |
slirp_restrict = (buf[0] == 'y') ? 1 : 0; |
1688 |
} |
1689 |
if (get_param_value(buf, sizeof(buf), "ip", p)) { |
1690 |
slirp_ip = strdup(buf); |
1691 |
} |
1692 |
vlan->nb_host_devs++; |
1693 |
ret = net_slirp_init(vlan, device, name); |
1694 |
} else if (!strcmp(device, "channel")) { |
1695 |
long port;
|
1696 |
char name[20], *devname; |
1697 |
struct VMChannel *vmc;
|
1698 |
|
1699 |
port = strtol(p, &devname, 10);
|
1700 |
devname++; |
1701 |
if (port < 1 || port > 65535) { |
1702 |
fprintf(stderr, "vmchannel wrong port number\n");
|
1703 |
ret = -1;
|
1704 |
goto out;
|
1705 |
} |
1706 |
vmc = malloc(sizeof(struct VMChannel)); |
1707 |
snprintf(name, 20, "vmchannel%ld", port); |
1708 |
vmc->hd = qemu_chr_open(name, devname, NULL);
|
1709 |
if (!vmc->hd) {
|
1710 |
fprintf(stderr, "qemu: could not open vmchannel device"
|
1711 |
"'%s'\n", devname);
|
1712 |
ret = -1;
|
1713 |
goto out;
|
1714 |
} |
1715 |
vmc->port = port; |
1716 |
slirp_add_exec(3, vmc->hd, 4, port); |
1717 |
qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read, |
1718 |
NULL, vmc);
|
1719 |
ret = 0;
|
1720 |
} else
|
1721 |
#endif
|
1722 |
#ifdef _WIN32
|
1723 |
if (!strcmp(device, "tap")) { |
1724 |
char ifname[64]; |
1725 |
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
1726 |
fprintf(stderr, "tap: no interface name\n");
|
1727 |
ret = -1;
|
1728 |
goto out;
|
1729 |
} |
1730 |
vlan->nb_host_devs++; |
1731 |
ret = tap_win32_init(vlan, device, name, ifname); |
1732 |
} else
|
1733 |
#elif defined (_AIX)
|
1734 |
#else
|
1735 |
if (!strcmp(device, "tap")) { |
1736 |
char ifname[64]; |
1737 |
char setup_script[1024], down_script[1024]; |
1738 |
int fd;
|
1739 |
vlan->nb_host_devs++; |
1740 |
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
1741 |
fd = strtol(buf, NULL, 0); |
1742 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
1743 |
net_tap_fd_init(vlan, device, name, fd); |
1744 |
ret = 0;
|
1745 |
} else {
|
1746 |
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
1747 |
ifname[0] = '\0'; |
1748 |
} |
1749 |
if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) { |
1750 |
pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
|
1751 |
} |
1752 |
if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) { |
1753 |
pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
|
1754 |
} |
1755 |
ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script); |
1756 |
} |
1757 |
} else
|
1758 |
#endif
|
1759 |
if (!strcmp(device, "socket")) { |
1760 |
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
1761 |
int fd;
|
1762 |
fd = strtol(buf, NULL, 0); |
1763 |
ret = -1;
|
1764 |
if (net_socket_fd_init(vlan, device, name, fd, 1)) |
1765 |
ret = 0;
|
1766 |
} else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) { |
1767 |
ret = net_socket_listen_init(vlan, device, name, buf); |
1768 |
} else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) { |
1769 |
ret = net_socket_connect_init(vlan, device, name, buf); |
1770 |
} else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) { |
1771 |
ret = net_socket_mcast_init(vlan, device, name, buf); |
1772 |
} else {
|
1773 |
fprintf(stderr, "Unknown socket options: %s\n", p);
|
1774 |
ret = -1;
|
1775 |
goto out;
|
1776 |
} |
1777 |
vlan->nb_host_devs++; |
1778 |
} else
|
1779 |
#ifdef CONFIG_VDE
|
1780 |
if (!strcmp(device, "vde")) { |
1781 |
char vde_sock[1024], vde_group[512]; |
1782 |
int vde_port, vde_mode;
|
1783 |
vlan->nb_host_devs++; |
1784 |
if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) { |
1785 |
vde_sock[0] = '\0'; |
1786 |
} |
1787 |
if (get_param_value(buf, sizeof(buf), "port", p) > 0) { |
1788 |
vde_port = strtol(buf, NULL, 10); |
1789 |
} else {
|
1790 |
vde_port = 0;
|
1791 |
} |
1792 |
if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) { |
1793 |
vde_group[0] = '\0'; |
1794 |
} |
1795 |
if (get_param_value(buf, sizeof(buf), "mode", p) > 0) { |
1796 |
vde_mode = strtol(buf, NULL, 8); |
1797 |
} else {
|
1798 |
vde_mode = 0700;
|
1799 |
} |
1800 |
ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode); |
1801 |
} else
|
1802 |
#endif
|
1803 |
{ |
1804 |
fprintf(stderr, "Unknown network device: %s\n", device);
|
1805 |
ret = -1;
|
1806 |
goto out;
|
1807 |
} |
1808 |
if (ret < 0) { |
1809 |
fprintf(stderr, "Could not initialize device '%s'\n", device);
|
1810 |
} |
1811 |
out:
|
1812 |
if (name)
|
1813 |
free(name); |
1814 |
return ret;
|
1815 |
} |
1816 |
|
1817 |
void net_client_uninit(NICInfo *nd)
|
1818 |
{ |
1819 |
nd->vlan->nb_guest_devs--; |
1820 |
nb_nics--; |
1821 |
nd->used = 0;
|
1822 |
free((void *)nd->model);
|
1823 |
} |
1824 |
|
1825 |
static int net_host_check_device(const char *device) |
1826 |
{ |
1827 |
int i;
|
1828 |
const char *valid_param_list[] = { "tap", "socket" |
1829 |
#ifdef CONFIG_SLIRP
|
1830 |
,"user"
|
1831 |
#endif
|
1832 |
#ifdef CONFIG_VDE
|
1833 |
,"vde"
|
1834 |
#endif
|
1835 |
}; |
1836 |
for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { |
1837 |
if (!strncmp(valid_param_list[i], device,
|
1838 |
strlen(valid_param_list[i]))) |
1839 |
return 1; |
1840 |
} |
1841 |
|
1842 |
return 0; |
1843 |
} |
1844 |
|
1845 |
void net_host_device_add(Monitor *mon, const char *device, const char *opts) |
1846 |
{ |
1847 |
if (!net_host_check_device(device)) {
|
1848 |
monitor_printf(mon, "invalid host network device %s\n", device);
|
1849 |
return;
|
1850 |
} |
1851 |
net_client_init(device, opts); |
1852 |
} |
1853 |
|
1854 |
void net_host_device_remove(Monitor *mon, int vlan_id, const char *device) |
1855 |
{ |
1856 |
VLANState *vlan; |
1857 |
VLANClientState *vc; |
1858 |
|
1859 |
vlan = qemu_find_vlan(vlan_id); |
1860 |
|
1861 |
for(vc = vlan->first_client; vc != NULL; vc = vc->next) |
1862 |
if (!strcmp(vc->name, device))
|
1863 |
break;
|
1864 |
|
1865 |
if (!vc) {
|
1866 |
monitor_printf(mon, "can't find device %s\n", device);
|
1867 |
return;
|
1868 |
} |
1869 |
qemu_del_vlan_client(vc); |
1870 |
} |
1871 |
|
1872 |
int net_client_parse(const char *str) |
1873 |
{ |
1874 |
const char *p; |
1875 |
char *q;
|
1876 |
char device[64]; |
1877 |
|
1878 |
p = str; |
1879 |
q = device; |
1880 |
while (*p != '\0' && *p != ',') { |
1881 |
if ((q - device) < sizeof(device) - 1) |
1882 |
*q++ = *p; |
1883 |
p++; |
1884 |
} |
1885 |
*q = '\0';
|
1886 |
if (*p == ',') |
1887 |
p++; |
1888 |
|
1889 |
return net_client_init(device, p);
|
1890 |
} |
1891 |
|
1892 |
void do_info_network(Monitor *mon)
|
1893 |
{ |
1894 |
VLANState *vlan; |
1895 |
VLANClientState *vc; |
1896 |
|
1897 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
1898 |
monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
|
1899 |
for(vc = vlan->first_client; vc != NULL; vc = vc->next) |
1900 |
monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
|
1901 |
} |
1902 |
} |
1903 |
|
1904 |
int do_set_link(Monitor *mon, const char *name, const char *up_or_down) |
1905 |
{ |
1906 |
VLANState *vlan; |
1907 |
VLANClientState *vc = NULL;
|
1908 |
|
1909 |
for (vlan = first_vlan; vlan != NULL; vlan = vlan->next) |
1910 |
for (vc = vlan->first_client; vc != NULL; vc = vc->next) |
1911 |
if (strcmp(vc->name, name) == 0) |
1912 |
goto done;
|
1913 |
done:
|
1914 |
|
1915 |
if (!vc) {
|
1916 |
monitor_printf(mon, "could not find network device '%s'", name);
|
1917 |
return 0; |
1918 |
} |
1919 |
|
1920 |
if (strcmp(up_or_down, "up") == 0) |
1921 |
vc->link_down = 0;
|
1922 |
else if (strcmp(up_or_down, "down") == 0) |
1923 |
vc->link_down = 1;
|
1924 |
else
|
1925 |
monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
|
1926 |
"valid\n", up_or_down);
|
1927 |
|
1928 |
if (vc->link_status_changed)
|
1929 |
vc->link_status_changed(vc); |
1930 |
|
1931 |
return 1; |
1932 |
} |
1933 |
|
1934 |
void net_cleanup(void) |
1935 |
{ |
1936 |
VLANState *vlan; |
1937 |
|
1938 |
/* close network clients */
|
1939 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
1940 |
VLANClientState *vc = vlan->first_client; |
1941 |
|
1942 |
while (vc) {
|
1943 |
VLANClientState *next = vc->next; |
1944 |
|
1945 |
qemu_del_vlan_client(vc); |
1946 |
|
1947 |
vc = next; |
1948 |
} |
1949 |
} |
1950 |
} |
1951 |
|
1952 |
void net_client_check(void) |
1953 |
{ |
1954 |
VLANState *vlan; |
1955 |
|
1956 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
1957 |
if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0) |
1958 |
continue;
|
1959 |
if (vlan->nb_guest_devs == 0) |
1960 |
fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
|
1961 |
if (vlan->nb_host_devs == 0) |
1962 |
fprintf(stderr, |
1963 |
"Warning: vlan %d is not connected to host network\n",
|
1964 |
vlan->id); |
1965 |
} |
1966 |
} |