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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> |
28 |
#include <errno.h> |
29 |
#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" |
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#include "qemu-log.h" |
122 |
|
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#if defined(CONFIG_SLIRP)
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#include "libslirp.h" |
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#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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} |
149 |
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) |
162 |
{ |
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int i;
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char *last_char;
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long int offset; |
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|
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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 && |
170 |
offset >= 0 && offset <= 0xFFFFFF) { |
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macaddr[3] = (offset & 0xFF0000) >> 16; |
172 |
macaddr[4] = (offset & 0xFF00) >> 8; |
173 |
macaddr[5] = offset & 0xFF; |
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return 0; |
175 |
} else {
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for(i = 0; i < 6; i++) { |
177 |
macaddr[i] = strtol(p, (char **)&p, 16); |
178 |
if (i == 5) { |
179 |
if (*p != '\0') |
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return -1; |
181 |
} else {
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if (*p != ':' && *p != '-') |
183 |
return -1; |
184 |
p++; |
185 |
} |
186 |
} |
187 |
return 0; |
188 |
} |
189 |
|
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return -1; |
191 |
} |
192 |
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static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) |
194 |
{ |
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const char *p, *p1; |
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int len;
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p = *pp; |
198 |
p1 = strchr(p, sep); |
199 |
if (!p1)
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return -1; |
201 |
len = p1 - p; |
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p1++; |
203 |
if (buf_size > 0) { |
204 |
if (len > buf_size - 1) |
205 |
len = buf_size - 1;
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memcpy(buf, p, len); |
207 |
buf[len] = '\0';
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} |
209 |
*pp = p1; |
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return 0; |
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} |
212 |
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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) |
216 |
{ |
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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,','))) |
229 |
*ptr = '\0';
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230 |
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if ((src_str = strchr(input_str,'@'))) { |
232 |
*src_str = '\0';
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src_str++; |
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} |
235 |
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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; |
240 |
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); |
247 |
return(0); |
248 |
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fail:
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free(str); |
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return -1; |
252 |
} |
253 |
|
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int parse_host_port(struct sockaddr_in *saddr, const char *str) |
255 |
{ |
256 |
char buf[512]; |
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struct hostent *he;
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const char *p, *r; |
259 |
int port;
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|
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p = str; |
262 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
263 |
return -1; |
264 |
saddr->sin_family = AF_INET; |
265 |
if (buf[0] == '\0') { |
266 |
saddr->sin_addr.s_addr = 0;
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} else {
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if (qemu_isdigit(buf[0])) { |
269 |
if (!inet_aton(buf, &saddr->sin_addr))
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return -1; |
271 |
} else {
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if ((he = gethostbyname(buf)) == NULL) |
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return - 1; |
274 |
saddr->sin_addr = *(struct in_addr *)he->h_addr;
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} |
276 |
} |
277 |
port = strtol(p, (char **)&r, 0); |
278 |
if (r == p)
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return -1; |
280 |
saddr->sin_port = htons(port); |
281 |
return 0; |
282 |
} |
283 |
|
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#if !defined(_WIN32) && 0 |
285 |
static int parse_unix_path(struct sockaddr_un *uaddr, const char *str) |
286 |
{ |
287 |
const char *p; |
288 |
int len;
|
289 |
|
290 |
len = MIN(108, strlen(str));
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p = strchr(str, ',');
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292 |
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; |
298 |
memcpy(uaddr->sun_path, str, len); |
299 |
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return 0; |
301 |
} |
302 |
#endif
|
303 |
|
304 |
void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]) |
305 |
{ |
306 |
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, |
309 |
macaddr[0], macaddr[1], macaddr[2], |
310 |
macaddr[3], macaddr[4], macaddr[5]); |
311 |
} |
312 |
|
313 |
static char *assign_name(VLANClientState *vc1, const char *model) |
314 |
{ |
315 |
VLANState *vlan; |
316 |
char buf[256]; |
317 |
int id = 0; |
318 |
|
319 |
for (vlan = first_vlan; vlan; vlan = vlan->next) {
|
320 |
VLANClientState *vc; |
321 |
|
322 |
for (vc = vlan->first_client; vc; vc = vc->next)
|
323 |
if (vc != vc1 && strcmp(vc->model, model) == 0) |
324 |
id++; |
325 |
} |
326 |
|
327 |
snprintf(buf, sizeof(buf), "%s.%d", model, id); |
328 |
|
329 |
return strdup(buf);
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330 |
} |
331 |
|
332 |
VLANClientState *qemu_new_vlan_client(VLANState *vlan, |
333 |
const char *model, |
334 |
const char *name, |
335 |
NetCanReceive *can_receive, |
336 |
NetReceive *receive, |
337 |
NetReceiveIOV *receive_iov, |
338 |
NetCleanup *cleanup, |
339 |
void *opaque)
|
340 |
{ |
341 |
VLANClientState *vc, **pvc; |
342 |
vc = qemu_mallocz(sizeof(VLANClientState));
|
343 |
vc->model = strdup(model); |
344 |
if (name)
|
345 |
vc->name = strdup(name); |
346 |
else
|
347 |
vc->name = assign_name(vc, model); |
348 |
vc->can_receive = can_receive; |
349 |
vc->receive = receive; |
350 |
vc->receive_iov = receive_iov; |
351 |
vc->cleanup = cleanup; |
352 |
vc->opaque = opaque; |
353 |
vc->vlan = vlan; |
354 |
|
355 |
vc->next = NULL;
|
356 |
pvc = &vlan->first_client; |
357 |
while (*pvc != NULL) |
358 |
pvc = &(*pvc)->next; |
359 |
*pvc = vc; |
360 |
return vc;
|
361 |
} |
362 |
|
363 |
void qemu_del_vlan_client(VLANClientState *vc)
|
364 |
{ |
365 |
VLANClientState **pvc = &vc->vlan->first_client; |
366 |
|
367 |
while (*pvc != NULL) |
368 |
if (*pvc == vc) {
|
369 |
*pvc = vc->next; |
370 |
if (vc->cleanup) {
|
371 |
vc->cleanup(vc); |
372 |
} |
373 |
free(vc->name); |
374 |
free(vc->model); |
375 |
qemu_free(vc); |
376 |
break;
|
377 |
} else
|
378 |
pvc = &(*pvc)->next; |
379 |
} |
380 |
|
381 |
VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque)
|
382 |
{ |
383 |
VLANClientState **pvc = &vlan->first_client; |
384 |
|
385 |
while (*pvc != NULL) |
386 |
if ((*pvc)->opaque == opaque)
|
387 |
return *pvc;
|
388 |
else
|
389 |
pvc = &(*pvc)->next; |
390 |
|
391 |
return NULL; |
392 |
} |
393 |
|
394 |
int qemu_can_send_packet(VLANClientState *sender)
|
395 |
{ |
396 |
VLANState *vlan = sender->vlan; |
397 |
VLANClientState *vc; |
398 |
|
399 |
for (vc = vlan->first_client; vc != NULL; vc = vc->next) { |
400 |
if (vc == sender) {
|
401 |
continue;
|
402 |
} |
403 |
|
404 |
/* no can_receive() handler, they can always receive */
|
405 |
if (!vc->can_receive || vc->can_receive(vc)) {
|
406 |
return 1; |
407 |
} |
408 |
} |
409 |
return 0; |
410 |
} |
411 |
|
412 |
static int |
413 |
qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size) |
414 |
{ |
415 |
VLANClientState *vc; |
416 |
int ret = -1; |
417 |
|
418 |
sender->vlan->delivering = 1;
|
419 |
|
420 |
for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) { |
421 |
ssize_t len; |
422 |
|
423 |
if (vc == sender) {
|
424 |
continue;
|
425 |
} |
426 |
|
427 |
if (vc->link_down) {
|
428 |
ret = size; |
429 |
continue;
|
430 |
} |
431 |
|
432 |
len = vc->receive(vc, buf, size); |
433 |
|
434 |
ret = (ret >= 0) ? ret : len;
|
435 |
} |
436 |
|
437 |
sender->vlan->delivering = 0;
|
438 |
|
439 |
return ret;
|
440 |
} |
441 |
|
442 |
void qemu_purge_queued_packets(VLANClientState *vc)
|
443 |
{ |
444 |
VLANPacket **pp = &vc->vlan->send_queue; |
445 |
|
446 |
while (*pp != NULL) { |
447 |
VLANPacket *packet = *pp; |
448 |
|
449 |
if (packet->sender == vc) {
|
450 |
*pp = packet->next; |
451 |
qemu_free(packet); |
452 |
} else {
|
453 |
pp = &packet->next; |
454 |
} |
455 |
} |
456 |
} |
457 |
|
458 |
void qemu_flush_queued_packets(VLANClientState *vc)
|
459 |
{ |
460 |
VLANPacket *packet; |
461 |
|
462 |
while ((packet = vc->vlan->send_queue) != NULL) { |
463 |
int ret;
|
464 |
|
465 |
vc->vlan->send_queue = packet->next; |
466 |
|
467 |
ret = qemu_deliver_packet(packet->sender, packet->data, packet->size); |
468 |
if (ret == 0 && packet->sent_cb != NULL) { |
469 |
packet->next = vc->vlan->send_queue; |
470 |
vc->vlan->send_queue = packet; |
471 |
break;
|
472 |
} |
473 |
|
474 |
if (packet->sent_cb)
|
475 |
packet->sent_cb(packet->sender); |
476 |
|
477 |
qemu_free(packet); |
478 |
} |
479 |
} |
480 |
|
481 |
static void qemu_enqueue_packet(VLANClientState *sender, |
482 |
const uint8_t *buf, int size, |
483 |
NetPacketSent *sent_cb) |
484 |
{ |
485 |
VLANPacket *packet; |
486 |
|
487 |
packet = qemu_malloc(sizeof(VLANPacket) + size);
|
488 |
packet->next = sender->vlan->send_queue; |
489 |
packet->sender = sender; |
490 |
packet->size = size; |
491 |
packet->sent_cb = sent_cb; |
492 |
memcpy(packet->data, buf, size); |
493 |
sender->vlan->send_queue = packet; |
494 |
} |
495 |
|
496 |
ssize_t qemu_send_packet_async(VLANClientState *sender, |
497 |
const uint8_t *buf, int size, |
498 |
NetPacketSent *sent_cb) |
499 |
{ |
500 |
int ret;
|
501 |
|
502 |
if (sender->link_down) {
|
503 |
return size;
|
504 |
} |
505 |
|
506 |
#ifdef DEBUG_NET
|
507 |
printf("vlan %d send:\n", sender->vlan->id);
|
508 |
hex_dump(stdout, buf, size); |
509 |
#endif
|
510 |
|
511 |
if (sender->vlan->delivering) {
|
512 |
qemu_enqueue_packet(sender, buf, size, NULL);
|
513 |
return size;
|
514 |
} |
515 |
|
516 |
ret = qemu_deliver_packet(sender, buf, size); |
517 |
if (ret == 0 && sent_cb != NULL) { |
518 |
qemu_enqueue_packet(sender, buf, size, sent_cb); |
519 |
return 0; |
520 |
} |
521 |
|
522 |
qemu_flush_queued_packets(sender); |
523 |
|
524 |
return ret;
|
525 |
} |
526 |
|
527 |
void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size) |
528 |
{ |
529 |
qemu_send_packet_async(vc, buf, size, NULL);
|
530 |
} |
531 |
|
532 |
static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, |
533 |
int iovcnt)
|
534 |
{ |
535 |
uint8_t buffer[4096];
|
536 |
size_t offset = 0;
|
537 |
int i;
|
538 |
|
539 |
for (i = 0; i < iovcnt; i++) { |
540 |
size_t len; |
541 |
|
542 |
len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
|
543 |
memcpy(buffer + offset, iov[i].iov_base, len); |
544 |
offset += len; |
545 |
} |
546 |
|
547 |
return vc->receive(vc, buffer, offset);
|
548 |
} |
549 |
|
550 |
static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) |
551 |
{ |
552 |
size_t offset = 0;
|
553 |
int i;
|
554 |
|
555 |
for (i = 0; i < iovcnt; i++) |
556 |
offset += iov[i].iov_len; |
557 |
return offset;
|
558 |
} |
559 |
|
560 |
static int qemu_deliver_packet_iov(VLANClientState *sender, |
561 |
const struct iovec *iov, int iovcnt) |
562 |
{ |
563 |
VLANClientState *vc; |
564 |
int ret = -1; |
565 |
|
566 |
sender->vlan->delivering = 1;
|
567 |
|
568 |
for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) { |
569 |
ssize_t len; |
570 |
|
571 |
if (vc == sender) {
|
572 |
continue;
|
573 |
} |
574 |
|
575 |
if (vc->link_down) {
|
576 |
ret = calc_iov_length(iov, iovcnt); |
577 |
continue;
|
578 |
} |
579 |
|
580 |
if (vc->receive_iov) {
|
581 |
len = vc->receive_iov(vc, iov, iovcnt); |
582 |
} else {
|
583 |
len = vc_sendv_compat(vc, iov, iovcnt); |
584 |
} |
585 |
|
586 |
ret = (ret >= 0) ? ret : len;
|
587 |
} |
588 |
|
589 |
sender->vlan->delivering = 0;
|
590 |
|
591 |
return ret;
|
592 |
} |
593 |
|
594 |
static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender,
|
595 |
const struct iovec *iov, int iovcnt, |
596 |
NetPacketSent *sent_cb) |
597 |
{ |
598 |
VLANPacket *packet; |
599 |
size_t max_len = 0;
|
600 |
int i;
|
601 |
|
602 |
max_len = calc_iov_length(iov, iovcnt); |
603 |
|
604 |
packet = qemu_malloc(sizeof(VLANPacket) + max_len);
|
605 |
packet->next = sender->vlan->send_queue; |
606 |
packet->sender = sender; |
607 |
packet->sent_cb = sent_cb; |
608 |
packet->size = 0;
|
609 |
|
610 |
for (i = 0; i < iovcnt; i++) { |
611 |
size_t len = iov[i].iov_len; |
612 |
|
613 |
memcpy(packet->data + packet->size, iov[i].iov_base, len); |
614 |
packet->size += len; |
615 |
} |
616 |
|
617 |
sender->vlan->send_queue = packet; |
618 |
|
619 |
return packet->size;
|
620 |
} |
621 |
|
622 |
ssize_t qemu_sendv_packet_async(VLANClientState *sender, |
623 |
const struct iovec *iov, int iovcnt, |
624 |
NetPacketSent *sent_cb) |
625 |
{ |
626 |
int ret;
|
627 |
|
628 |
if (sender->link_down) {
|
629 |
return calc_iov_length(iov, iovcnt);
|
630 |
} |
631 |
|
632 |
if (sender->vlan->delivering) {
|
633 |
return qemu_enqueue_packet_iov(sender, iov, iovcnt, NULL); |
634 |
} |
635 |
|
636 |
ret = qemu_deliver_packet_iov(sender, iov, iovcnt); |
637 |
if (ret == 0 && sent_cb != NULL) { |
638 |
qemu_enqueue_packet_iov(sender, iov, iovcnt, sent_cb); |
639 |
return 0; |
640 |
} |
641 |
|
642 |
qemu_flush_queued_packets(sender); |
643 |
|
644 |
return ret;
|
645 |
} |
646 |
|
647 |
ssize_t |
648 |
qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt) |
649 |
{ |
650 |
return qemu_sendv_packet_async(vc, iov, iovcnt, NULL); |
651 |
} |
652 |
|
653 |
static void config_error(Monitor *mon, const char *fmt, ...) |
654 |
{ |
655 |
va_list ap; |
656 |
|
657 |
va_start(ap, fmt); |
658 |
if (mon) {
|
659 |
monitor_vprintf(mon, fmt, ap); |
660 |
} else {
|
661 |
fprintf(stderr, "qemu: ");
|
662 |
vfprintf(stderr, fmt, ap); |
663 |
exit(1);
|
664 |
} |
665 |
va_end(ap); |
666 |
} |
667 |
|
668 |
#if defined(CONFIG_SLIRP)
|
669 |
|
670 |
/* slirp network adapter */
|
671 |
|
672 |
struct slirp_config_str {
|
673 |
struct slirp_config_str *next;
|
674 |
const char *str; |
675 |
}; |
676 |
|
677 |
static int slirp_inited; |
678 |
static struct slirp_config_str *slirp_redirs; |
679 |
#ifndef _WIN32
|
680 |
static const char *slirp_smb_export; |
681 |
#endif
|
682 |
static VLANClientState *slirp_vc;
|
683 |
|
684 |
#ifndef _WIN32
|
685 |
static void slirp_smb(const char *exported_dir); |
686 |
#endif
|
687 |
static void slirp_redirection(Monitor *mon, const char *redir_str); |
688 |
|
689 |
int slirp_can_output(void) |
690 |
{ |
691 |
return !slirp_vc || qemu_can_send_packet(slirp_vc);
|
692 |
} |
693 |
|
694 |
void slirp_output(const uint8_t *pkt, int pkt_len) |
695 |
{ |
696 |
#ifdef DEBUG_SLIRP
|
697 |
printf("slirp output:\n");
|
698 |
hex_dump(stdout, pkt, pkt_len); |
699 |
#endif
|
700 |
if (!slirp_vc)
|
701 |
return;
|
702 |
qemu_send_packet(slirp_vc, pkt, pkt_len); |
703 |
} |
704 |
|
705 |
int slirp_is_inited(void) |
706 |
{ |
707 |
return slirp_inited;
|
708 |
} |
709 |
|
710 |
static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
711 |
{ |
712 |
#ifdef DEBUG_SLIRP
|
713 |
printf("slirp input:\n");
|
714 |
hex_dump(stdout, buf, size); |
715 |
#endif
|
716 |
slirp_input(buf, size); |
717 |
return size;
|
718 |
} |
719 |
|
720 |
static int slirp_in_use; |
721 |
|
722 |
static void net_slirp_cleanup(VLANClientState *vc) |
723 |
{ |
724 |
slirp_in_use = 0;
|
725 |
} |
726 |
|
727 |
static int net_slirp_init(VLANState *vlan, const char *model, const char *name, |
728 |
int restricted, const char *ip) |
729 |
{ |
730 |
if (slirp_in_use) {
|
731 |
/* slirp only supports a single instance so far */
|
732 |
return -1; |
733 |
} |
734 |
if (!slirp_inited) {
|
735 |
slirp_inited = 1;
|
736 |
slirp_init(restricted, ip); |
737 |
|
738 |
while (slirp_redirs) {
|
739 |
struct slirp_config_str *config = slirp_redirs;
|
740 |
|
741 |
slirp_redirection(NULL, config->str);
|
742 |
slirp_redirs = config->next; |
743 |
qemu_free(config); |
744 |
} |
745 |
#ifndef _WIN32
|
746 |
if (slirp_smb_export) {
|
747 |
slirp_smb(slirp_smb_export); |
748 |
} |
749 |
#endif
|
750 |
} |
751 |
|
752 |
slirp_vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive,
|
753 |
NULL, net_slirp_cleanup, NULL); |
754 |
slirp_vc->info_str[0] = '\0'; |
755 |
slirp_in_use = 1;
|
756 |
return 0; |
757 |
} |
758 |
|
759 |
static void net_slirp_redir_print(void *opaque, int is_udp, |
760 |
struct in_addr *laddr, u_int lport,
|
761 |
struct in_addr *faddr, u_int fport)
|
762 |
{ |
763 |
Monitor *mon = (Monitor *)opaque; |
764 |
uint32_t h_addr; |
765 |
uint32_t g_addr; |
766 |
char buf[16]; |
767 |
|
768 |
h_addr = ntohl(faddr->s_addr); |
769 |
g_addr = ntohl(laddr->s_addr); |
770 |
|
771 |
monitor_printf(mon, " %s |", is_udp ? "udp" : "tcp" ); |
772 |
snprintf(buf, 15, "%d.%d.%d.%d", (h_addr >> 24) & 0xff, |
773 |
(h_addr >> 16) & 0xff, |
774 |
(h_addr >> 8) & 0xff, |
775 |
(h_addr) & 0xff);
|
776 |
monitor_printf(mon, " %15s |", buf);
|
777 |
monitor_printf(mon, " %5d |", fport);
|
778 |
|
779 |
snprintf(buf, 15, "%d.%d.%d.%d", (g_addr >> 24) & 0xff, |
780 |
(g_addr >> 16) & 0xff, |
781 |
(g_addr >> 8) & 0xff, |
782 |
(g_addr) & 0xff);
|
783 |
monitor_printf(mon, " %15s |", buf);
|
784 |
monitor_printf(mon, " %5d\n", lport);
|
785 |
|
786 |
} |
787 |
|
788 |
static void net_slirp_redir_list(Monitor *mon) |
789 |
{ |
790 |
if (!mon)
|
791 |
return;
|
792 |
|
793 |
monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
|
794 |
monitor_printf(mon, " | | | | \n");
|
795 |
slirp_redir_loop(net_slirp_redir_print, mon); |
796 |
} |
797 |
|
798 |
static void net_slirp_redir_rm(Monitor *mon, const char *port_str) |
799 |
{ |
800 |
int host_port;
|
801 |
char buf[256] = ""; |
802 |
const char *p = port_str; |
803 |
int is_udp = 0; |
804 |
int n;
|
805 |
|
806 |
if (!mon)
|
807 |
return;
|
808 |
|
809 |
if (!port_str || !port_str[0]) |
810 |
goto fail_syntax;
|
811 |
|
812 |
get_str_sep(buf, sizeof(buf), &p, ':'); |
813 |
|
814 |
if (!strcmp(buf, "tcp") || buf[0] == '\0') { |
815 |
is_udp = 0;
|
816 |
} else if (!strcmp(buf, "udp")) { |
817 |
is_udp = 1;
|
818 |
} else {
|
819 |
goto fail_syntax;
|
820 |
} |
821 |
|
822 |
host_port = atoi(p); |
823 |
|
824 |
n = slirp_redir_rm(is_udp, host_port); |
825 |
|
826 |
monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
|
827 |
is_udp ? "udp" : "tcp", host_port); |
828 |
return;
|
829 |
|
830 |
fail_syntax:
|
831 |
monitor_printf(mon, "invalid format\n");
|
832 |
} |
833 |
|
834 |
static void slirp_redirection(Monitor *mon, const char *redir_str) |
835 |
{ |
836 |
struct in_addr guest_addr;
|
837 |
int host_port, guest_port;
|
838 |
const char *p; |
839 |
char buf[256], *r; |
840 |
int is_udp;
|
841 |
|
842 |
p = redir_str; |
843 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
844 |
goto fail_syntax;
|
845 |
} |
846 |
if (!strcmp(buf, "tcp") || buf[0] == '\0') { |
847 |
is_udp = 0;
|
848 |
} else if (!strcmp(buf, "udp")) { |
849 |
is_udp = 1;
|
850 |
} else {
|
851 |
goto fail_syntax;
|
852 |
} |
853 |
|
854 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
855 |
goto fail_syntax;
|
856 |
} |
857 |
host_port = strtol(buf, &r, 0);
|
858 |
if (r == buf) {
|
859 |
goto fail_syntax;
|
860 |
} |
861 |
|
862 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
863 |
goto fail_syntax;
|
864 |
} |
865 |
if (buf[0] == '\0') { |
866 |
pstrcpy(buf, sizeof(buf), "10.0.2.15"); |
867 |
} |
868 |
if (!inet_aton(buf, &guest_addr)) {
|
869 |
goto fail_syntax;
|
870 |
} |
871 |
|
872 |
guest_port = strtol(p, &r, 0);
|
873 |
if (r == p) {
|
874 |
goto fail_syntax;
|
875 |
} |
876 |
|
877 |
if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) { |
878 |
config_error(mon, "could not set up redirection '%s'\n", redir_str);
|
879 |
} |
880 |
return;
|
881 |
|
882 |
fail_syntax:
|
883 |
config_error(mon, "invalid redirection format '%s'\n", redir_str);
|
884 |
} |
885 |
|
886 |
void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2) |
887 |
{ |
888 |
struct slirp_config_str *config;
|
889 |
|
890 |
if (!slirp_inited) {
|
891 |
if (mon) {
|
892 |
monitor_printf(mon, "user mode network stack not in use\n");
|
893 |
} else {
|
894 |
config = qemu_malloc(sizeof(*config));
|
895 |
config->str = redir_str; |
896 |
config->next = slirp_redirs; |
897 |
slirp_redirs = config; |
898 |
} |
899 |
return;
|
900 |
} |
901 |
|
902 |
if (!strcmp(redir_str, "remove")) { |
903 |
net_slirp_redir_rm(mon, redir_opt2); |
904 |
return;
|
905 |
} |
906 |
|
907 |
if (!strcmp(redir_str, "list")) { |
908 |
net_slirp_redir_list(mon); |
909 |
return;
|
910 |
} |
911 |
|
912 |
slirp_redirection(mon, redir_str); |
913 |
} |
914 |
|
915 |
#ifndef _WIN32
|
916 |
|
917 |
static char smb_dir[1024]; |
918 |
|
919 |
static void erase_dir(char *dir_name) |
920 |
{ |
921 |
DIR *d; |
922 |
struct dirent *de;
|
923 |
char filename[1024]; |
924 |
|
925 |
/* erase all the files in the directory */
|
926 |
if ((d = opendir(dir_name)) != NULL) { |
927 |
for(;;) {
|
928 |
de = readdir(d); |
929 |
if (!de)
|
930 |
break;
|
931 |
if (strcmp(de->d_name, ".") != 0 && |
932 |
strcmp(de->d_name, "..") != 0) { |
933 |
snprintf(filename, sizeof(filename), "%s/%s", |
934 |
smb_dir, de->d_name); |
935 |
if (unlink(filename) != 0) /* is it a directory? */ |
936 |
erase_dir(filename); |
937 |
} |
938 |
} |
939 |
closedir(d); |
940 |
rmdir(dir_name); |
941 |
} |
942 |
} |
943 |
|
944 |
/* automatic user mode samba server configuration */
|
945 |
static void smb_exit(void) |
946 |
{ |
947 |
erase_dir(smb_dir); |
948 |
} |
949 |
|
950 |
static void slirp_smb(const char *exported_dir) |
951 |
{ |
952 |
char smb_conf[1024]; |
953 |
char smb_cmdline[1024]; |
954 |
FILE *f; |
955 |
|
956 |
/* XXX: better tmp dir construction */
|
957 |
snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid()); |
958 |
if (mkdir(smb_dir, 0700) < 0) { |
959 |
fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
|
960 |
exit(1);
|
961 |
} |
962 |
snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf"); |
963 |
|
964 |
f = fopen(smb_conf, "w");
|
965 |
if (!f) {
|
966 |
fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
|
967 |
exit(1);
|
968 |
} |
969 |
fprintf(f, |
970 |
"[global]\n"
|
971 |
"private dir=%s\n"
|
972 |
"smb ports=0\n"
|
973 |
"socket address=127.0.0.1\n"
|
974 |
"pid directory=%s\n"
|
975 |
"lock directory=%s\n"
|
976 |
"log file=%s/log.smbd\n"
|
977 |
"smb passwd file=%s/smbpasswd\n"
|
978 |
"security = share\n"
|
979 |
"[qemu]\n"
|
980 |
"path=%s\n"
|
981 |
"read only=no\n"
|
982 |
"guest ok=yes\n",
|
983 |
smb_dir, |
984 |
smb_dir, |
985 |
smb_dir, |
986 |
smb_dir, |
987 |
smb_dir, |
988 |
exported_dir |
989 |
); |
990 |
fclose(f); |
991 |
atexit(smb_exit); |
992 |
|
993 |
snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s", |
994 |
SMBD_COMMAND, smb_conf); |
995 |
|
996 |
slirp_add_exec(0, smb_cmdline, 4, 139); |
997 |
} |
998 |
|
999 |
/* automatic user mode samba server configuration */
|
1000 |
void net_slirp_smb(const char *exported_dir) |
1001 |
{ |
1002 |
if (slirp_smb_export) {
|
1003 |
fprintf(stderr, "-smb given twice\n");
|
1004 |
exit(1);
|
1005 |
} |
1006 |
slirp_smb_export = exported_dir; |
1007 |
if (slirp_inited) {
|
1008 |
slirp_smb(exported_dir); |
1009 |
} |
1010 |
} |
1011 |
|
1012 |
#endif /* !defined(_WIN32) */ |
1013 |
|
1014 |
void do_info_slirp(Monitor *mon)
|
1015 |
{ |
1016 |
slirp_stats(); |
1017 |
} |
1018 |
|
1019 |
struct VMChannel {
|
1020 |
CharDriverState *hd; |
1021 |
int port;
|
1022 |
}; |
1023 |
|
1024 |
static int vmchannel_can_read(void *opaque) |
1025 |
{ |
1026 |
struct VMChannel *vmc = (struct VMChannel*)opaque; |
1027 |
return slirp_socket_can_recv(4, vmc->port); |
1028 |
} |
1029 |
|
1030 |
static void vmchannel_read(void *opaque, const uint8_t *buf, int size) |
1031 |
{ |
1032 |
struct VMChannel *vmc = (struct VMChannel*)opaque; |
1033 |
slirp_socket_recv(4, vmc->port, buf, size);
|
1034 |
} |
1035 |
|
1036 |
#endif /* CONFIG_SLIRP */ |
1037 |
|
1038 |
#if !defined(_WIN32)
|
1039 |
|
1040 |
typedef struct TAPState { |
1041 |
VLANClientState *vc; |
1042 |
int fd;
|
1043 |
char down_script[1024]; |
1044 |
char down_script_arg[128]; |
1045 |
uint8_t buf[4096];
|
1046 |
unsigned int read_poll : 1; |
1047 |
} TAPState; |
1048 |
|
1049 |
static int launch_script(const char *setup_script, const char *ifname, int fd); |
1050 |
|
1051 |
static int tap_can_send(void *opaque); |
1052 |
static void tap_send(void *opaque); |
1053 |
|
1054 |
static void tap_update_fd_handler(TAPState *s) |
1055 |
{ |
1056 |
qemu_set_fd_handler2(s->fd, |
1057 |
s->read_poll ? tap_can_send : NULL,
|
1058 |
s->read_poll ? tap_send : NULL,
|
1059 |
NULL,
|
1060 |
s); |
1061 |
} |
1062 |
|
1063 |
static void tap_read_poll(TAPState *s, int enable) |
1064 |
{ |
1065 |
s->read_poll = !!enable; |
1066 |
tap_update_fd_handler(s); |
1067 |
} |
1068 |
|
1069 |
static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov, |
1070 |
int iovcnt)
|
1071 |
{ |
1072 |
TAPState *s = vc->opaque; |
1073 |
ssize_t len; |
1074 |
|
1075 |
do {
|
1076 |
len = writev(s->fd, iov, iovcnt); |
1077 |
} while (len == -1 && (errno == EINTR || errno == EAGAIN)); |
1078 |
|
1079 |
return len;
|
1080 |
} |
1081 |
|
1082 |
static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
1083 |
{ |
1084 |
TAPState *s = vc->opaque; |
1085 |
ssize_t len; |
1086 |
|
1087 |
do {
|
1088 |
len = write(s->fd, buf, size); |
1089 |
} while (len == -1 && (errno == EINTR || errno == EAGAIN)); |
1090 |
|
1091 |
return len;
|
1092 |
} |
1093 |
|
1094 |
static int tap_can_send(void *opaque) |
1095 |
{ |
1096 |
TAPState *s = opaque; |
1097 |
|
1098 |
return qemu_can_send_packet(s->vc);
|
1099 |
} |
1100 |
|
1101 |
#ifdef __sun__
|
1102 |
static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen) |
1103 |
{ |
1104 |
struct strbuf sbuf;
|
1105 |
int f = 0; |
1106 |
|
1107 |
sbuf.maxlen = maxlen; |
1108 |
sbuf.buf = (char *)buf;
|
1109 |
|
1110 |
return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1; |
1111 |
} |
1112 |
#else
|
1113 |
static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen) |
1114 |
{ |
1115 |
return read(tapfd, buf, maxlen);
|
1116 |
} |
1117 |
#endif
|
1118 |
|
1119 |
static void tap_send_completed(VLANClientState *vc) |
1120 |
{ |
1121 |
TAPState *s = vc->opaque; |
1122 |
tap_read_poll(s, 1);
|
1123 |
} |
1124 |
|
1125 |
static void tap_send(void *opaque) |
1126 |
{ |
1127 |
TAPState *s = opaque; |
1128 |
int size;
|
1129 |
|
1130 |
do {
|
1131 |
size = tap_read_packet(s->fd, s->buf, sizeof(s->buf));
|
1132 |
if (size <= 0) { |
1133 |
break;
|
1134 |
} |
1135 |
|
1136 |
size = qemu_send_packet_async(s->vc, s->buf, size, tap_send_completed); |
1137 |
if (size == 0) { |
1138 |
tap_read_poll(s, 0);
|
1139 |
} |
1140 |
} while (size > 0); |
1141 |
} |
1142 |
|
1143 |
static void tap_cleanup(VLANClientState *vc) |
1144 |
{ |
1145 |
TAPState *s = vc->opaque; |
1146 |
|
1147 |
qemu_purge_queued_packets(vc); |
1148 |
|
1149 |
if (s->down_script[0]) |
1150 |
launch_script(s->down_script, s->down_script_arg, s->fd); |
1151 |
|
1152 |
tap_read_poll(s, 0);
|
1153 |
close(s->fd); |
1154 |
qemu_free(s); |
1155 |
} |
1156 |
|
1157 |
/* fd support */
|
1158 |
|
1159 |
static TAPState *net_tap_fd_init(VLANState *vlan,
|
1160 |
const char *model, |
1161 |
const char *name, |
1162 |
int fd)
|
1163 |
{ |
1164 |
TAPState *s; |
1165 |
|
1166 |
s = qemu_mallocz(sizeof(TAPState));
|
1167 |
s->fd = fd; |
1168 |
s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive,
|
1169 |
tap_receive_iov, tap_cleanup, s); |
1170 |
tap_read_poll(s, 1);
|
1171 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd); |
1172 |
return s;
|
1173 |
} |
1174 |
|
1175 |
#if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
|
1176 |
static int tap_open(char *ifname, int ifname_size) |
1177 |
{ |
1178 |
int fd;
|
1179 |
char *dev;
|
1180 |
struct stat s;
|
1181 |
|
1182 |
TFR(fd = open("/dev/tap", O_RDWR));
|
1183 |
if (fd < 0) { |
1184 |
fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
|
1185 |
return -1; |
1186 |
} |
1187 |
|
1188 |
fstat(fd, &s); |
1189 |
dev = devname(s.st_rdev, S_IFCHR); |
1190 |
pstrcpy(ifname, ifname_size, dev); |
1191 |
|
1192 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
1193 |
return fd;
|
1194 |
} |
1195 |
#elif defined(__sun__)
|
1196 |
#define TUNNEWPPA (('T'<<16) | 0x0001) |
1197 |
/*
|
1198 |
* Allocate TAP device, returns opened fd.
|
1199 |
* Stores dev name in the first arg(must be large enough).
|
1200 |
*/
|
1201 |
static int tap_alloc(char *dev, size_t dev_size) |
1202 |
{ |
1203 |
int tap_fd, if_fd, ppa = -1; |
1204 |
static int ip_fd = 0; |
1205 |
char *ptr;
|
1206 |
|
1207 |
static int arp_fd = 0; |
1208 |
int ip_muxid, arp_muxid;
|
1209 |
struct strioctl strioc_if, strioc_ppa;
|
1210 |
int link_type = I_PLINK;;
|
1211 |
struct lifreq ifr;
|
1212 |
char actual_name[32] = ""; |
1213 |
|
1214 |
memset(&ifr, 0x0, sizeof(ifr)); |
1215 |
|
1216 |
if( *dev ){
|
1217 |
ptr = dev; |
1218 |
while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++; |
1219 |
ppa = atoi(ptr); |
1220 |
} |
1221 |
|
1222 |
/* Check if IP device was opened */
|
1223 |
if( ip_fd )
|
1224 |
close(ip_fd); |
1225 |
|
1226 |
TFR(ip_fd = open("/dev/udp", O_RDWR, 0)); |
1227 |
if (ip_fd < 0) { |
1228 |
syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
|
1229 |
return -1; |
1230 |
} |
1231 |
|
1232 |
TFR(tap_fd = open("/dev/tap", O_RDWR, 0)); |
1233 |
if (tap_fd < 0) { |
1234 |
syslog(LOG_ERR, "Can't open /dev/tap");
|
1235 |
return -1; |
1236 |
} |
1237 |
|
1238 |
/* Assign a new PPA and get its unit number. */
|
1239 |
strioc_ppa.ic_cmd = TUNNEWPPA; |
1240 |
strioc_ppa.ic_timout = 0;
|
1241 |
strioc_ppa.ic_len = sizeof(ppa);
|
1242 |
strioc_ppa.ic_dp = (char *)&ppa;
|
1243 |
if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0) |
1244 |
syslog (LOG_ERR, "Can't assign new interface");
|
1245 |
|
1246 |
TFR(if_fd = open("/dev/tap", O_RDWR, 0)); |
1247 |
if (if_fd < 0) { |
1248 |
syslog(LOG_ERR, "Can't open /dev/tap (2)");
|
1249 |
return -1; |
1250 |
} |
1251 |
if(ioctl(if_fd, I_PUSH, "ip") < 0){ |
1252 |
syslog(LOG_ERR, "Can't push IP module");
|
1253 |
return -1; |
1254 |
} |
1255 |
|
1256 |
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0) |
1257 |
syslog(LOG_ERR, "Can't get flags\n");
|
1258 |
|
1259 |
snprintf (actual_name, 32, "tap%d", ppa); |
1260 |
pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
|
1261 |
|
1262 |
ifr.lifr_ppa = ppa; |
1263 |
/* Assign ppa according to the unit number returned by tun device */
|
1264 |
|
1265 |
if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0) |
1266 |
syslog (LOG_ERR, "Can't set PPA %d", ppa);
|
1267 |
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0) |
1268 |
syslog (LOG_ERR, "Can't get flags\n");
|
1269 |
/* Push arp module to if_fd */
|
1270 |
if (ioctl (if_fd, I_PUSH, "arp") < 0) |
1271 |
syslog (LOG_ERR, "Can't push ARP module (2)");
|
1272 |
|
1273 |
/* Push arp module to ip_fd */
|
1274 |
if (ioctl (ip_fd, I_POP, NULL) < 0) |
1275 |
syslog (LOG_ERR, "I_POP failed\n");
|
1276 |
if (ioctl (ip_fd, I_PUSH, "arp") < 0) |
1277 |
syslog (LOG_ERR, "Can't push ARP module (3)\n");
|
1278 |
/* Open arp_fd */
|
1279 |
TFR(arp_fd = open ("/dev/tap", O_RDWR, 0)); |
1280 |
if (arp_fd < 0) |
1281 |
syslog (LOG_ERR, "Can't open %s\n", "/dev/tap"); |
1282 |
|
1283 |
/* Set ifname to arp */
|
1284 |
strioc_if.ic_cmd = SIOCSLIFNAME; |
1285 |
strioc_if.ic_timout = 0;
|
1286 |
strioc_if.ic_len = sizeof(ifr);
|
1287 |
strioc_if.ic_dp = (char *)𝔦
|
1288 |
if (ioctl(arp_fd, I_STR, &strioc_if) < 0){ |
1289 |
syslog (LOG_ERR, "Can't set ifname to arp\n");
|
1290 |
} |
1291 |
|
1292 |
if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){ |
1293 |
syslog(LOG_ERR, "Can't link TAP device to IP");
|
1294 |
return -1; |
1295 |
} |
1296 |
|
1297 |
if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0) |
1298 |
syslog (LOG_ERR, "Can't link TAP device to ARP");
|
1299 |
|
1300 |
close (if_fd); |
1301 |
|
1302 |
memset(&ifr, 0x0, sizeof(ifr)); |
1303 |
pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
|
1304 |
ifr.lifr_ip_muxid = ip_muxid; |
1305 |
ifr.lifr_arp_muxid = arp_muxid; |
1306 |
|
1307 |
if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0) |
1308 |
{ |
1309 |
ioctl (ip_fd, I_PUNLINK , arp_muxid); |
1310 |
ioctl (ip_fd, I_PUNLINK, ip_muxid); |
1311 |
syslog (LOG_ERR, "Can't set multiplexor id");
|
1312 |
} |
1313 |
|
1314 |
snprintf(dev, dev_size, "tap%d", ppa);
|
1315 |
return tap_fd;
|
1316 |
} |
1317 |
|
1318 |
static int tap_open(char *ifname, int ifname_size) |
1319 |
{ |
1320 |
char dev[10]=""; |
1321 |
int fd;
|
1322 |
if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){ |
1323 |
fprintf(stderr, "Cannot allocate TAP device\n");
|
1324 |
return -1; |
1325 |
} |
1326 |
pstrcpy(ifname, ifname_size, dev); |
1327 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
1328 |
return fd;
|
1329 |
} |
1330 |
#elif defined (_AIX)
|
1331 |
static int tap_open(char *ifname, int ifname_size) |
1332 |
{ |
1333 |
fprintf (stderr, "no tap on AIX\n");
|
1334 |
return -1; |
1335 |
} |
1336 |
#else
|
1337 |
static int tap_open(char *ifname, int ifname_size) |
1338 |
{ |
1339 |
struct ifreq ifr;
|
1340 |
int fd, ret;
|
1341 |
|
1342 |
TFR(fd = open("/dev/net/tun", O_RDWR));
|
1343 |
if (fd < 0) { |
1344 |
fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
|
1345 |
return -1; |
1346 |
} |
1347 |
memset(&ifr, 0, sizeof(ifr)); |
1348 |
ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
1349 |
if (ifname[0] != '\0') |
1350 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname); |
1351 |
else
|
1352 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
|
1353 |
ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
|
1354 |
if (ret != 0) { |
1355 |
fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
|
1356 |
close(fd); |
1357 |
return -1; |
1358 |
} |
1359 |
pstrcpy(ifname, ifname_size, ifr.ifr_name); |
1360 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
1361 |
return fd;
|
1362 |
} |
1363 |
#endif
|
1364 |
|
1365 |
static int launch_script(const char *setup_script, const char *ifname, int fd) |
1366 |
{ |
1367 |
sigset_t oldmask, mask; |
1368 |
int pid, status;
|
1369 |
char *args[3]; |
1370 |
char **parg;
|
1371 |
|
1372 |
sigemptyset(&mask); |
1373 |
sigaddset(&mask, SIGCHLD); |
1374 |
sigprocmask(SIG_BLOCK, &mask, &oldmask); |
1375 |
|
1376 |
/* try to launch network script */
|
1377 |
pid = fork(); |
1378 |
if (pid == 0) { |
1379 |
int open_max = sysconf(_SC_OPEN_MAX), i;
|
1380 |
|
1381 |
for (i = 0; i < open_max; i++) { |
1382 |
if (i != STDIN_FILENO &&
|
1383 |
i != STDOUT_FILENO && |
1384 |
i != STDERR_FILENO && |
1385 |
i != fd) { |
1386 |
close(i); |
1387 |
} |
1388 |
} |
1389 |
parg = args; |
1390 |
*parg++ = (char *)setup_script;
|
1391 |
*parg++ = (char *)ifname;
|
1392 |
*parg++ = NULL;
|
1393 |
execv(setup_script, args); |
1394 |
_exit(1);
|
1395 |
} else if (pid > 0) { |
1396 |
while (waitpid(pid, &status, 0) != pid) { |
1397 |
/* loop */
|
1398 |
} |
1399 |
sigprocmask(SIG_SETMASK, &oldmask, NULL);
|
1400 |
|
1401 |
if (WIFEXITED(status) && WEXITSTATUS(status) == 0) { |
1402 |
return 0; |
1403 |
} |
1404 |
} |
1405 |
fprintf(stderr, "%s: could not launch network script\n", setup_script);
|
1406 |
return -1; |
1407 |
} |
1408 |
|
1409 |
static int net_tap_init(VLANState *vlan, const char *model, |
1410 |
const char *name, const char *ifname1, |
1411 |
const char *setup_script, const char *down_script) |
1412 |
{ |
1413 |
TAPState *s; |
1414 |
int fd;
|
1415 |
char ifname[128]; |
1416 |
|
1417 |
if (ifname1 != NULL) |
1418 |
pstrcpy(ifname, sizeof(ifname), ifname1);
|
1419 |
else
|
1420 |
ifname[0] = '\0'; |
1421 |
TFR(fd = tap_open(ifname, sizeof(ifname)));
|
1422 |
if (fd < 0) |
1423 |
return -1; |
1424 |
|
1425 |
if (!setup_script || !strcmp(setup_script, "no")) |
1426 |
setup_script = "";
|
1427 |
if (setup_script[0] != '\0') { |
1428 |
if (launch_script(setup_script, ifname, fd))
|
1429 |
return -1; |
1430 |
} |
1431 |
s = net_tap_fd_init(vlan, model, name, fd); |
1432 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1433 |
"ifname=%s,script=%s,downscript=%s",
|
1434 |
ifname, setup_script, down_script); |
1435 |
if (down_script && strcmp(down_script, "no")) { |
1436 |
snprintf(s->down_script, sizeof(s->down_script), "%s", down_script); |
1437 |
snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname); |
1438 |
} |
1439 |
return 0; |
1440 |
} |
1441 |
|
1442 |
#endif /* !_WIN32 */ |
1443 |
|
1444 |
#if defined(CONFIG_VDE)
|
1445 |
typedef struct VDEState { |
1446 |
VLANClientState *vc; |
1447 |
VDECONN *vde; |
1448 |
} VDEState; |
1449 |
|
1450 |
static void vde_to_qemu(void *opaque) |
1451 |
{ |
1452 |
VDEState *s = opaque; |
1453 |
uint8_t buf[4096];
|
1454 |
int size;
|
1455 |
|
1456 |
size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0); |
1457 |
if (size > 0) { |
1458 |
qemu_send_packet(s->vc, buf, size); |
1459 |
} |
1460 |
} |
1461 |
|
1462 |
static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
1463 |
{ |
1464 |
VDEState *s = vc->opaque; |
1465 |
ssize_t ret; |
1466 |
|
1467 |
do {
|
1468 |
ret = vde_send(s->vde, (const char *)buf, size, 0); |
1469 |
} while (ret < 0 && errno == EINTR); |
1470 |
|
1471 |
return ret;
|
1472 |
} |
1473 |
|
1474 |
static void vde_cleanup(VLANClientState *vc) |
1475 |
{ |
1476 |
VDEState *s = vc->opaque; |
1477 |
qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL); |
1478 |
vde_close(s->vde); |
1479 |
qemu_free(s); |
1480 |
} |
1481 |
|
1482 |
static int net_vde_init(VLANState *vlan, const char *model, |
1483 |
const char *name, const char *sock, |
1484 |
int port, const char *group, int mode) |
1485 |
{ |
1486 |
VDEState *s; |
1487 |
char *init_group = strlen(group) ? (char *)group : NULL; |
1488 |
char *init_sock = strlen(sock) ? (char *)sock : NULL; |
1489 |
|
1490 |
struct vde_open_args args = {
|
1491 |
.port = port, |
1492 |
.group = init_group, |
1493 |
.mode = mode, |
1494 |
}; |
1495 |
|
1496 |
s = qemu_mallocz(sizeof(VDEState));
|
1497 |
s->vde = vde_open(init_sock, (char *)"QEMU", &args); |
1498 |
if (!s->vde){
|
1499 |
free(s); |
1500 |
return -1; |
1501 |
} |
1502 |
s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive,
|
1503 |
NULL, vde_cleanup, s);
|
1504 |
qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
|
1505 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d", |
1506 |
sock, vde_datafd(s->vde)); |
1507 |
return 0; |
1508 |
} |
1509 |
#endif
|
1510 |
|
1511 |
/* network connection */
|
1512 |
typedef struct NetSocketState { |
1513 |
VLANClientState *vc; |
1514 |
int fd;
|
1515 |
int state; /* 0 = getting length, 1 = getting data */ |
1516 |
unsigned int index; |
1517 |
unsigned int packet_len; |
1518 |
uint8_t buf[4096];
|
1519 |
struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ |
1520 |
} NetSocketState; |
1521 |
|
1522 |
typedef struct NetSocketListenState { |
1523 |
VLANState *vlan; |
1524 |
char *model;
|
1525 |
char *name;
|
1526 |
int fd;
|
1527 |
} NetSocketListenState; |
1528 |
|
1529 |
/* XXX: we consider we can send the whole packet without blocking */
|
1530 |
static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
1531 |
{ |
1532 |
NetSocketState *s = vc->opaque; |
1533 |
uint32_t len; |
1534 |
len = htonl(size); |
1535 |
|
1536 |
send_all(s->fd, (const uint8_t *)&len, sizeof(len)); |
1537 |
return send_all(s->fd, buf, size);
|
1538 |
} |
1539 |
|
1540 |
static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size) |
1541 |
{ |
1542 |
NetSocketState *s = vc->opaque; |
1543 |
|
1544 |
return sendto(s->fd, (const void *)buf, size, 0, |
1545 |
(struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst)); |
1546 |
} |
1547 |
|
1548 |
static void net_socket_send(void *opaque) |
1549 |
{ |
1550 |
NetSocketState *s = opaque; |
1551 |
int size, err;
|
1552 |
unsigned l;
|
1553 |
uint8_t buf1[4096];
|
1554 |
const uint8_t *buf;
|
1555 |
|
1556 |
size = recv(s->fd, (void *)buf1, sizeof(buf1), 0); |
1557 |
if (size < 0) { |
1558 |
err = socket_error(); |
1559 |
if (err != EWOULDBLOCK)
|
1560 |
goto eoc;
|
1561 |
} else if (size == 0) { |
1562 |
/* end of connection */
|
1563 |
eoc:
|
1564 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1565 |
closesocket(s->fd); |
1566 |
return;
|
1567 |
} |
1568 |
buf = buf1; |
1569 |
while (size > 0) { |
1570 |
/* reassemble a packet from the network */
|
1571 |
switch(s->state) {
|
1572 |
case 0: |
1573 |
l = 4 - s->index;
|
1574 |
if (l > size)
|
1575 |
l = size; |
1576 |
memcpy(s->buf + s->index, buf, l); |
1577 |
buf += l; |
1578 |
size -= l; |
1579 |
s->index += l; |
1580 |
if (s->index == 4) { |
1581 |
/* got length */
|
1582 |
s->packet_len = ntohl(*(uint32_t *)s->buf); |
1583 |
s->index = 0;
|
1584 |
s->state = 1;
|
1585 |
} |
1586 |
break;
|
1587 |
case 1: |
1588 |
l = s->packet_len - s->index; |
1589 |
if (l > size)
|
1590 |
l = size; |
1591 |
if (s->index + l <= sizeof(s->buf)) { |
1592 |
memcpy(s->buf + s->index, buf, l); |
1593 |
} else {
|
1594 |
fprintf(stderr, "serious error: oversized packet received,"
|
1595 |
"connection terminated.\n");
|
1596 |
s->state = 0;
|
1597 |
goto eoc;
|
1598 |
} |
1599 |
|
1600 |
s->index += l; |
1601 |
buf += l; |
1602 |
size -= l; |
1603 |
if (s->index >= s->packet_len) {
|
1604 |
qemu_send_packet(s->vc, s->buf, s->packet_len); |
1605 |
s->index = 0;
|
1606 |
s->state = 0;
|
1607 |
} |
1608 |
break;
|
1609 |
} |
1610 |
} |
1611 |
} |
1612 |
|
1613 |
static void net_socket_send_dgram(void *opaque) |
1614 |
{ |
1615 |
NetSocketState *s = opaque; |
1616 |
int size;
|
1617 |
|
1618 |
size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0); |
1619 |
if (size < 0) |
1620 |
return;
|
1621 |
if (size == 0) { |
1622 |
/* end of connection */
|
1623 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1624 |
return;
|
1625 |
} |
1626 |
qemu_send_packet(s->vc, s->buf, size); |
1627 |
} |
1628 |
|
1629 |
static int net_socket_mcast_create(struct sockaddr_in *mcastaddr) |
1630 |
{ |
1631 |
struct ip_mreq imr;
|
1632 |
int fd;
|
1633 |
int val, ret;
|
1634 |
if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
|
1635 |
fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
|
1636 |
inet_ntoa(mcastaddr->sin_addr), |
1637 |
(int)ntohl(mcastaddr->sin_addr.s_addr));
|
1638 |
return -1; |
1639 |
|
1640 |
} |
1641 |
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
1642 |
if (fd < 0) { |
1643 |
perror("socket(PF_INET, SOCK_DGRAM)");
|
1644 |
return -1; |
1645 |
} |
1646 |
|
1647 |
val = 1;
|
1648 |
ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, |
1649 |
(const char *)&val, sizeof(val)); |
1650 |
if (ret < 0) { |
1651 |
perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
|
1652 |
goto fail;
|
1653 |
} |
1654 |
|
1655 |
ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); |
1656 |
if (ret < 0) { |
1657 |
perror("bind");
|
1658 |
goto fail;
|
1659 |
} |
1660 |
|
1661 |
/* Add host to multicast group */
|
1662 |
imr.imr_multiaddr = mcastaddr->sin_addr; |
1663 |
imr.imr_interface.s_addr = htonl(INADDR_ANY); |
1664 |
|
1665 |
ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, |
1666 |
(const char *)&imr, sizeof(struct ip_mreq)); |
1667 |
if (ret < 0) { |
1668 |
perror("setsockopt(IP_ADD_MEMBERSHIP)");
|
1669 |
goto fail;
|
1670 |
} |
1671 |
|
1672 |
/* Force mcast msgs to loopback (eg. several QEMUs in same host */
|
1673 |
val = 1;
|
1674 |
ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, |
1675 |
(const char *)&val, sizeof(val)); |
1676 |
if (ret < 0) { |
1677 |
perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
|
1678 |
goto fail;
|
1679 |
} |
1680 |
|
1681 |
socket_set_nonblock(fd); |
1682 |
return fd;
|
1683 |
fail:
|
1684 |
if (fd >= 0) |
1685 |
closesocket(fd); |
1686 |
return -1; |
1687 |
} |
1688 |
|
1689 |
static void net_socket_cleanup(VLANClientState *vc) |
1690 |
{ |
1691 |
NetSocketState *s = vc->opaque; |
1692 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1693 |
close(s->fd); |
1694 |
qemu_free(s); |
1695 |
} |
1696 |
|
1697 |
static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
|
1698 |
const char *model, |
1699 |
const char *name, |
1700 |
int fd, int is_connected) |
1701 |
{ |
1702 |
struct sockaddr_in saddr;
|
1703 |
int newfd;
|
1704 |
socklen_t saddr_len; |
1705 |
NetSocketState *s; |
1706 |
|
1707 |
/* fd passed: multicast: "learn" dgram_dst address from bound address and save it
|
1708 |
* Because this may be "shared" socket from a "master" process, datagrams would be recv()
|
1709 |
* by ONLY ONE process: we must "clone" this dgram socket --jjo
|
1710 |
*/
|
1711 |
|
1712 |
if (is_connected) {
|
1713 |
if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) { |
1714 |
/* must be bound */
|
1715 |
if (saddr.sin_addr.s_addr==0) { |
1716 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
|
1717 |
fd); |
1718 |
return NULL; |
1719 |
} |
1720 |
/* clone dgram socket */
|
1721 |
newfd = net_socket_mcast_create(&saddr); |
1722 |
if (newfd < 0) { |
1723 |
/* error already reported by net_socket_mcast_create() */
|
1724 |
close(fd); |
1725 |
return NULL; |
1726 |
} |
1727 |
/* clone newfd to fd, close newfd */
|
1728 |
dup2(newfd, fd); |
1729 |
close(newfd); |
1730 |
|
1731 |
} else {
|
1732 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
|
1733 |
fd, strerror(errno)); |
1734 |
return NULL; |
1735 |
} |
1736 |
} |
1737 |
|
1738 |
s = qemu_mallocz(sizeof(NetSocketState));
|
1739 |
s->fd = fd; |
1740 |
|
1741 |
s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram,
|
1742 |
NULL, net_socket_cleanup, s);
|
1743 |
qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
|
1744 |
|
1745 |
/* mcast: save bound address as dst */
|
1746 |
if (is_connected) s->dgram_dst=saddr;
|
1747 |
|
1748 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1749 |
"socket: fd=%d (%s mcast=%s:%d)",
|
1750 |
fd, is_connected? "cloned" : "", |
1751 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1752 |
return s;
|
1753 |
} |
1754 |
|
1755 |
static void net_socket_connect(void *opaque) |
1756 |
{ |
1757 |
NetSocketState *s = opaque; |
1758 |
qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
|
1759 |
} |
1760 |
|
1761 |
static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
|
1762 |
const char *model, |
1763 |
const char *name, |
1764 |
int fd, int is_connected) |
1765 |
{ |
1766 |
NetSocketState *s; |
1767 |
s = qemu_mallocz(sizeof(NetSocketState));
|
1768 |
s->fd = fd; |
1769 |
s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive,
|
1770 |
NULL, net_socket_cleanup, s);
|
1771 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1772 |
"socket: fd=%d", fd);
|
1773 |
if (is_connected) {
|
1774 |
net_socket_connect(s); |
1775 |
} else {
|
1776 |
qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
|
1777 |
} |
1778 |
return s;
|
1779 |
} |
1780 |
|
1781 |
static NetSocketState *net_socket_fd_init(VLANState *vlan,
|
1782 |
const char *model, const char *name, |
1783 |
int fd, int is_connected) |
1784 |
{ |
1785 |
int so_type=-1, optlen=sizeof(so_type); |
1786 |
|
1787 |
if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, |
1788 |
(socklen_t *)&optlen)< 0) {
|
1789 |
fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
|
1790 |
return NULL; |
1791 |
} |
1792 |
switch(so_type) {
|
1793 |
case SOCK_DGRAM:
|
1794 |
return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
|
1795 |
case SOCK_STREAM:
|
1796 |
return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
|
1797 |
default:
|
1798 |
/* who knows ... this could be a eg. a pty, do warn and continue as stream */
|
1799 |
fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
|
1800 |
return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
|
1801 |
} |
1802 |
return NULL; |
1803 |
} |
1804 |
|
1805 |
static void net_socket_accept(void *opaque) |
1806 |
{ |
1807 |
NetSocketListenState *s = opaque; |
1808 |
NetSocketState *s1; |
1809 |
struct sockaddr_in saddr;
|
1810 |
socklen_t len; |
1811 |
int fd;
|
1812 |
|
1813 |
for(;;) {
|
1814 |
len = sizeof(saddr);
|
1815 |
fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
|
1816 |
if (fd < 0 && errno != EINTR) { |
1817 |
return;
|
1818 |
} else if (fd >= 0) { |
1819 |
break;
|
1820 |
} |
1821 |
} |
1822 |
s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
|
1823 |
if (!s1) {
|
1824 |
closesocket(fd); |
1825 |
} else {
|
1826 |
snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
|
1827 |
"socket: connection from %s:%d",
|
1828 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1829 |
} |
1830 |
} |
1831 |
|
1832 |
static int net_socket_listen_init(VLANState *vlan, |
1833 |
const char *model, |
1834 |
const char *name, |
1835 |
const char *host_str) |
1836 |
{ |
1837 |
NetSocketListenState *s; |
1838 |
int fd, val, ret;
|
1839 |
struct sockaddr_in saddr;
|
1840 |
|
1841 |
if (parse_host_port(&saddr, host_str) < 0) |
1842 |
return -1; |
1843 |
|
1844 |
s = qemu_mallocz(sizeof(NetSocketListenState));
|
1845 |
|
1846 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
1847 |
if (fd < 0) { |
1848 |
perror("socket");
|
1849 |
return -1; |
1850 |
} |
1851 |
socket_set_nonblock(fd); |
1852 |
|
1853 |
/* allow fast reuse */
|
1854 |
val = 1;
|
1855 |
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val)); |
1856 |
|
1857 |
ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
1858 |
if (ret < 0) { |
1859 |
perror("bind");
|
1860 |
return -1; |
1861 |
} |
1862 |
ret = listen(fd, 0);
|
1863 |
if (ret < 0) { |
1864 |
perror("listen");
|
1865 |
return -1; |
1866 |
} |
1867 |
s->vlan = vlan; |
1868 |
s->model = strdup(model); |
1869 |
s->name = name ? strdup(name) : NULL;
|
1870 |
s->fd = fd; |
1871 |
qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
|
1872 |
return 0; |
1873 |
} |
1874 |
|
1875 |
static int net_socket_connect_init(VLANState *vlan, |
1876 |
const char *model, |
1877 |
const char *name, |
1878 |
const char *host_str) |
1879 |
{ |
1880 |
NetSocketState *s; |
1881 |
int fd, connected, ret, err;
|
1882 |
struct sockaddr_in saddr;
|
1883 |
|
1884 |
if (parse_host_port(&saddr, host_str) < 0) |
1885 |
return -1; |
1886 |
|
1887 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
1888 |
if (fd < 0) { |
1889 |
perror("socket");
|
1890 |
return -1; |
1891 |
} |
1892 |
socket_set_nonblock(fd); |
1893 |
|
1894 |
connected = 0;
|
1895 |
for(;;) {
|
1896 |
ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
1897 |
if (ret < 0) { |
1898 |
err = socket_error(); |
1899 |
if (err == EINTR || err == EWOULDBLOCK) {
|
1900 |
} else if (err == EINPROGRESS) { |
1901 |
break;
|
1902 |
#ifdef _WIN32
|
1903 |
} else if (err == WSAEALREADY) { |
1904 |
break;
|
1905 |
#endif
|
1906 |
} else {
|
1907 |
perror("connect");
|
1908 |
closesocket(fd); |
1909 |
return -1; |
1910 |
} |
1911 |
} else {
|
1912 |
connected = 1;
|
1913 |
break;
|
1914 |
} |
1915 |
} |
1916 |
s = net_socket_fd_init(vlan, model, name, fd, connected); |
1917 |
if (!s)
|
1918 |
return -1; |
1919 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1920 |
"socket: connect to %s:%d",
|
1921 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1922 |
return 0; |
1923 |
} |
1924 |
|
1925 |
static int net_socket_mcast_init(VLANState *vlan, |
1926 |
const char *model, |
1927 |
const char *name, |
1928 |
const char *host_str) |
1929 |
{ |
1930 |
NetSocketState *s; |
1931 |
int fd;
|
1932 |
struct sockaddr_in saddr;
|
1933 |
|
1934 |
if (parse_host_port(&saddr, host_str) < 0) |
1935 |
return -1; |
1936 |
|
1937 |
|
1938 |
fd = net_socket_mcast_create(&saddr); |
1939 |
if (fd < 0) |
1940 |
return -1; |
1941 |
|
1942 |
s = net_socket_fd_init(vlan, model, name, fd, 0);
|
1943 |
if (!s)
|
1944 |
return -1; |
1945 |
|
1946 |
s->dgram_dst = saddr; |
1947 |
|
1948 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1949 |
"socket: mcast=%s:%d",
|
1950 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1951 |
return 0; |
1952 |
|
1953 |
} |
1954 |
|
1955 |
typedef struct DumpState { |
1956 |
VLANClientState *pcap_vc; |
1957 |
int fd;
|
1958 |
int pcap_caplen;
|
1959 |
} DumpState; |
1960 |
|
1961 |
#define PCAP_MAGIC 0xa1b2c3d4 |
1962 |
|
1963 |
struct pcap_file_hdr {
|
1964 |
uint32_t magic; |
1965 |
uint16_t version_major; |
1966 |
uint16_t version_minor; |
1967 |
int32_t thiszone; |
1968 |
uint32_t sigfigs; |
1969 |
uint32_t snaplen; |
1970 |
uint32_t linktype; |
1971 |
}; |
1972 |
|
1973 |
struct pcap_sf_pkthdr {
|
1974 |
struct {
|
1975 |
int32_t tv_sec; |
1976 |
int32_t tv_usec; |
1977 |
} ts; |
1978 |
uint32_t caplen; |
1979 |
uint32_t len; |
1980 |
}; |
1981 |
|
1982 |
static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
1983 |
{ |
1984 |
DumpState *s = vc->opaque; |
1985 |
struct pcap_sf_pkthdr hdr;
|
1986 |
int64_t ts; |
1987 |
int caplen;
|
1988 |
|
1989 |
/* Early return in case of previous error. */
|
1990 |
if (s->fd < 0) { |
1991 |
return size;
|
1992 |
} |
1993 |
|
1994 |
ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
|
1995 |
caplen = size > s->pcap_caplen ? s->pcap_caplen : size; |
1996 |
|
1997 |
hdr.ts.tv_sec = ts / 1000000;
|
1998 |
hdr.ts.tv_usec = ts % 1000000;
|
1999 |
hdr.caplen = caplen; |
2000 |
hdr.len = size; |
2001 |
if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) || |
2002 |
write(s->fd, buf, caplen) != caplen) { |
2003 |
qemu_log("-net dump write error - stop dump\n");
|
2004 |
close(s->fd); |
2005 |
s->fd = -1;
|
2006 |
} |
2007 |
|
2008 |
return size;
|
2009 |
} |
2010 |
|
2011 |
static void net_dump_cleanup(VLANClientState *vc) |
2012 |
{ |
2013 |
DumpState *s = vc->opaque; |
2014 |
|
2015 |
close(s->fd); |
2016 |
qemu_free(s); |
2017 |
} |
2018 |
|
2019 |
static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device, |
2020 |
const char *name, const char *filename, int len) |
2021 |
{ |
2022 |
struct pcap_file_hdr hdr;
|
2023 |
DumpState *s; |
2024 |
|
2025 |
s = qemu_malloc(sizeof(DumpState));
|
2026 |
|
2027 |
s->fd = open(filename, O_CREAT | O_WRONLY | O_BINARY, 0644);
|
2028 |
if (s->fd < 0) { |
2029 |
config_error(mon, "-net dump: can't open %s\n", filename);
|
2030 |
return -1; |
2031 |
} |
2032 |
|
2033 |
s->pcap_caplen = len; |
2034 |
|
2035 |
hdr.magic = PCAP_MAGIC; |
2036 |
hdr.version_major = 2;
|
2037 |
hdr.version_minor = 4;
|
2038 |
hdr.thiszone = 0;
|
2039 |
hdr.sigfigs = 0;
|
2040 |
hdr.snaplen = s->pcap_caplen; |
2041 |
hdr.linktype = 1;
|
2042 |
|
2043 |
if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) { |
2044 |
config_error(mon, "-net dump write error: %s\n", strerror(errno));
|
2045 |
close(s->fd); |
2046 |
qemu_free(s); |
2047 |
return -1; |
2048 |
} |
2049 |
|
2050 |
s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL, |
2051 |
net_dump_cleanup, s); |
2052 |
snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
|
2053 |
"dump to %s (len=%d)", filename, len);
|
2054 |
return 0; |
2055 |
} |
2056 |
|
2057 |
/* find or alloc a new VLAN */
|
2058 |
VLANState *qemu_find_vlan(int id)
|
2059 |
{ |
2060 |
VLANState **pvlan, *vlan; |
2061 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
2062 |
if (vlan->id == id)
|
2063 |
return vlan;
|
2064 |
} |
2065 |
vlan = qemu_mallocz(sizeof(VLANState));
|
2066 |
vlan->id = id; |
2067 |
vlan->next = NULL;
|
2068 |
pvlan = &first_vlan; |
2069 |
while (*pvlan != NULL) |
2070 |
pvlan = &(*pvlan)->next; |
2071 |
*pvlan = vlan; |
2072 |
return vlan;
|
2073 |
} |
2074 |
|
2075 |
static int nic_get_free_idx(void) |
2076 |
{ |
2077 |
int index;
|
2078 |
|
2079 |
for (index = 0; index < MAX_NICS; index++) |
2080 |
if (!nd_table[index].used)
|
2081 |
return index;
|
2082 |
return -1; |
2083 |
} |
2084 |
|
2085 |
void qemu_check_nic_model(NICInfo *nd, const char *model) |
2086 |
{ |
2087 |
const char *models[2]; |
2088 |
|
2089 |
models[0] = model;
|
2090 |
models[1] = NULL; |
2091 |
|
2092 |
qemu_check_nic_model_list(nd, models, model); |
2093 |
} |
2094 |
|
2095 |
void qemu_check_nic_model_list(NICInfo *nd, const char * const *models, |
2096 |
const char *default_model) |
2097 |
{ |
2098 |
int i, exit_status = 0; |
2099 |
|
2100 |
if (!nd->model)
|
2101 |
nd->model = strdup(default_model); |
2102 |
|
2103 |
if (strcmp(nd->model, "?") != 0) { |
2104 |
for (i = 0 ; models[i]; i++) |
2105 |
if (strcmp(nd->model, models[i]) == 0) |
2106 |
return;
|
2107 |
|
2108 |
fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
|
2109 |
exit_status = 1;
|
2110 |
} |
2111 |
|
2112 |
fprintf(stderr, "qemu: Supported NIC models: ");
|
2113 |
for (i = 0 ; models[i]; i++) |
2114 |
fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); |
2115 |
|
2116 |
exit(exit_status); |
2117 |
} |
2118 |
|
2119 |
int net_client_init(Monitor *mon, const char *device, const char *p) |
2120 |
{ |
2121 |
static const char * const fd_params[] = { |
2122 |
"vlan", "name", "fd", NULL |
2123 |
}; |
2124 |
char buf[1024]; |
2125 |
int vlan_id, ret;
|
2126 |
VLANState *vlan; |
2127 |
char *name = NULL; |
2128 |
|
2129 |
vlan_id = 0;
|
2130 |
if (get_param_value(buf, sizeof(buf), "vlan", p)) { |
2131 |
vlan_id = strtol(buf, NULL, 0); |
2132 |
} |
2133 |
vlan = qemu_find_vlan(vlan_id); |
2134 |
|
2135 |
if (get_param_value(buf, sizeof(buf), "name", p)) { |
2136 |
name = qemu_strdup(buf); |
2137 |
} |
2138 |
if (!strcmp(device, "nic")) { |
2139 |
static const char * const nic_params[] = { |
2140 |
"vlan", "name", "macaddr", "model", "addr", NULL |
2141 |
}; |
2142 |
NICInfo *nd; |
2143 |
uint8_t *macaddr; |
2144 |
int idx = nic_get_free_idx();
|
2145 |
|
2146 |
if (check_params(buf, sizeof(buf), nic_params, p) < 0) { |
2147 |
config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
|
2148 |
ret = -1;
|
2149 |
goto out;
|
2150 |
} |
2151 |
if (idx == -1 || nb_nics >= MAX_NICS) { |
2152 |
config_error(mon, "Too Many NICs\n");
|
2153 |
ret = -1;
|
2154 |
goto out;
|
2155 |
} |
2156 |
nd = &nd_table[idx]; |
2157 |
macaddr = nd->macaddr; |
2158 |
macaddr[0] = 0x52; |
2159 |
macaddr[1] = 0x54; |
2160 |
macaddr[2] = 0x00; |
2161 |
macaddr[3] = 0x12; |
2162 |
macaddr[4] = 0x34; |
2163 |
macaddr[5] = 0x56 + idx; |
2164 |
|
2165 |
if (get_param_value(buf, sizeof(buf), "macaddr", p)) { |
2166 |
if (parse_macaddr(macaddr, buf) < 0) { |
2167 |
config_error(mon, "invalid syntax for ethernet address\n");
|
2168 |
ret = -1;
|
2169 |
goto out;
|
2170 |
} |
2171 |
} |
2172 |
if (get_param_value(buf, sizeof(buf), "model", p)) { |
2173 |
nd->model = strdup(buf); |
2174 |
} |
2175 |
if (get_param_value(buf, sizeof(buf), "addr", p)) { |
2176 |
nd->devaddr = strdup(buf); |
2177 |
} |
2178 |
nd->vlan = vlan; |
2179 |
nd->name = name; |
2180 |
nd->used = 1;
|
2181 |
name = NULL;
|
2182 |
nb_nics++; |
2183 |
vlan->nb_guest_devs++; |
2184 |
ret = idx; |
2185 |
} else
|
2186 |
if (!strcmp(device, "none")) { |
2187 |
if (*p != '\0') { |
2188 |
config_error(mon, "'none' takes no parameters\n");
|
2189 |
ret = -1;
|
2190 |
goto out;
|
2191 |
} |
2192 |
/* does nothing. It is needed to signal that no network cards
|
2193 |
are wanted */
|
2194 |
ret = 0;
|
2195 |
} else
|
2196 |
#ifdef CONFIG_SLIRP
|
2197 |
if (!strcmp(device, "user")) { |
2198 |
static const char * const slirp_params[] = { |
2199 |
"vlan", "name", "hostname", "restrict", "ip", NULL |
2200 |
}; |
2201 |
int restricted = 0; |
2202 |
char *ip = NULL; |
2203 |
|
2204 |
if (check_params(buf, sizeof(buf), slirp_params, p) < 0) { |
2205 |
config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
|
2206 |
ret = -1;
|
2207 |
goto out;
|
2208 |
} |
2209 |
if (get_param_value(buf, sizeof(buf), "hostname", p)) { |
2210 |
pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
|
2211 |
} |
2212 |
if (get_param_value(buf, sizeof(buf), "restrict", p)) { |
2213 |
restricted = (buf[0] == 'y') ? 1 : 0; |
2214 |
} |
2215 |
if (get_param_value(buf, sizeof(buf), "ip", p)) { |
2216 |
ip = qemu_strdup(buf); |
2217 |
} |
2218 |
vlan->nb_host_devs++; |
2219 |
ret = net_slirp_init(vlan, device, name, restricted, ip); |
2220 |
qemu_free(ip); |
2221 |
} else if (!strcmp(device, "channel")) { |
2222 |
long port;
|
2223 |
char name[20], *devname; |
2224 |
struct VMChannel *vmc;
|
2225 |
|
2226 |
port = strtol(p, &devname, 10);
|
2227 |
devname++; |
2228 |
if (port < 1 || port > 65535) { |
2229 |
config_error(mon, "vmchannel wrong port number\n");
|
2230 |
ret = -1;
|
2231 |
goto out;
|
2232 |
} |
2233 |
vmc = malloc(sizeof(struct VMChannel)); |
2234 |
snprintf(name, 20, "vmchannel%ld", port); |
2235 |
vmc->hd = qemu_chr_open(name, devname, NULL);
|
2236 |
if (!vmc->hd) {
|
2237 |
config_error(mon, "could not open vmchannel device '%s'\n",
|
2238 |
devname); |
2239 |
ret = -1;
|
2240 |
goto out;
|
2241 |
} |
2242 |
vmc->port = port; |
2243 |
slirp_add_exec(3, vmc->hd, 4, port); |
2244 |
qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read, |
2245 |
NULL, vmc);
|
2246 |
ret = 0;
|
2247 |
} else
|
2248 |
#endif
|
2249 |
#ifdef _WIN32
|
2250 |
if (!strcmp(device, "tap")) { |
2251 |
static const char * const tap_params[] = { |
2252 |
"vlan", "name", "ifname", NULL |
2253 |
}; |
2254 |
char ifname[64]; |
2255 |
|
2256 |
if (check_params(buf, sizeof(buf), tap_params, p) < 0) { |
2257 |
config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
|
2258 |
ret = -1;
|
2259 |
goto out;
|
2260 |
} |
2261 |
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
2262 |
config_error(mon, "tap: no interface name\n");
|
2263 |
ret = -1;
|
2264 |
goto out;
|
2265 |
} |
2266 |
vlan->nb_host_devs++; |
2267 |
ret = tap_win32_init(vlan, device, name, ifname); |
2268 |
} else
|
2269 |
#elif defined (_AIX)
|
2270 |
#else
|
2271 |
if (!strcmp(device, "tap")) { |
2272 |
char ifname[64], chkbuf[64]; |
2273 |
char setup_script[1024], down_script[1024]; |
2274 |
int fd;
|
2275 |
vlan->nb_host_devs++; |
2276 |
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
2277 |
if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { |
2278 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2279 |
ret = -1;
|
2280 |
goto out;
|
2281 |
} |
2282 |
fd = strtol(buf, NULL, 0); |
2283 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
2284 |
net_tap_fd_init(vlan, device, name, fd); |
2285 |
ret = 0;
|
2286 |
} else {
|
2287 |
static const char * const tap_params[] = { |
2288 |
"vlan", "name", "ifname", "script", "downscript", NULL |
2289 |
}; |
2290 |
if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) { |
2291 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2292 |
ret = -1;
|
2293 |
goto out;
|
2294 |
} |
2295 |
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
2296 |
ifname[0] = '\0'; |
2297 |
} |
2298 |
if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) { |
2299 |
pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
|
2300 |
} |
2301 |
if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) { |
2302 |
pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
|
2303 |
} |
2304 |
ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script); |
2305 |
} |
2306 |
} else
|
2307 |
#endif
|
2308 |
if (!strcmp(device, "socket")) { |
2309 |
char chkbuf[64]; |
2310 |
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
2311 |
int fd;
|
2312 |
if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { |
2313 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2314 |
ret = -1;
|
2315 |
goto out;
|
2316 |
} |
2317 |
fd = strtol(buf, NULL, 0); |
2318 |
ret = -1;
|
2319 |
if (net_socket_fd_init(vlan, device, name, fd, 1)) |
2320 |
ret = 0;
|
2321 |
} else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) { |
2322 |
static const char * const listen_params[] = { |
2323 |
"vlan", "name", "listen", NULL |
2324 |
}; |
2325 |
if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) { |
2326 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2327 |
ret = -1;
|
2328 |
goto out;
|
2329 |
} |
2330 |
ret = net_socket_listen_init(vlan, device, name, buf); |
2331 |
} else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) { |
2332 |
static const char * const connect_params[] = { |
2333 |
"vlan", "name", "connect", NULL |
2334 |
}; |
2335 |
if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) { |
2336 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2337 |
ret = -1;
|
2338 |
goto out;
|
2339 |
} |
2340 |
ret = net_socket_connect_init(vlan, device, name, buf); |
2341 |
} else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) { |
2342 |
static const char * const mcast_params[] = { |
2343 |
"vlan", "name", "mcast", NULL |
2344 |
}; |
2345 |
if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) { |
2346 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2347 |
ret = -1;
|
2348 |
goto out;
|
2349 |
} |
2350 |
ret = net_socket_mcast_init(vlan, device, name, buf); |
2351 |
} else {
|
2352 |
config_error(mon, "Unknown socket options: %s\n", p);
|
2353 |
ret = -1;
|
2354 |
goto out;
|
2355 |
} |
2356 |
vlan->nb_host_devs++; |
2357 |
} else
|
2358 |
#ifdef CONFIG_VDE
|
2359 |
if (!strcmp(device, "vde")) { |
2360 |
static const char * const vde_params[] = { |
2361 |
"vlan", "name", "sock", "port", "group", "mode", NULL |
2362 |
}; |
2363 |
char vde_sock[1024], vde_group[512]; |
2364 |
int vde_port, vde_mode;
|
2365 |
|
2366 |
if (check_params(buf, sizeof(buf), vde_params, p) < 0) { |
2367 |
config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
|
2368 |
ret = -1;
|
2369 |
goto out;
|
2370 |
} |
2371 |
vlan->nb_host_devs++; |
2372 |
if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) { |
2373 |
vde_sock[0] = '\0'; |
2374 |
} |
2375 |
if (get_param_value(buf, sizeof(buf), "port", p) > 0) { |
2376 |
vde_port = strtol(buf, NULL, 10); |
2377 |
} else {
|
2378 |
vde_port = 0;
|
2379 |
} |
2380 |
if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) { |
2381 |
vde_group[0] = '\0'; |
2382 |
} |
2383 |
if (get_param_value(buf, sizeof(buf), "mode", p) > 0) { |
2384 |
vde_mode = strtol(buf, NULL, 8); |
2385 |
} else {
|
2386 |
vde_mode = 0700;
|
2387 |
} |
2388 |
ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode); |
2389 |
} else
|
2390 |
#endif
|
2391 |
if (!strcmp(device, "dump")) { |
2392 |
int len = 65536; |
2393 |
|
2394 |
if (get_param_value(buf, sizeof(buf), "len", p) > 0) { |
2395 |
len = strtol(buf, NULL, 0); |
2396 |
} |
2397 |
if (!get_param_value(buf, sizeof(buf), "file", p)) { |
2398 |
snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id); |
2399 |
} |
2400 |
ret = net_dump_init(mon, vlan, device, name, buf, len); |
2401 |
} else {
|
2402 |
config_error(mon, "Unknown network device: %s\n", device);
|
2403 |
ret = -1;
|
2404 |
goto out;
|
2405 |
} |
2406 |
if (ret < 0) { |
2407 |
config_error(mon, "Could not initialize device '%s'\n", device);
|
2408 |
} |
2409 |
out:
|
2410 |
qemu_free(name); |
2411 |
return ret;
|
2412 |
} |
2413 |
|
2414 |
void net_client_uninit(NICInfo *nd)
|
2415 |
{ |
2416 |
nd->vlan->nb_guest_devs--; |
2417 |
nb_nics--; |
2418 |
nd->used = 0;
|
2419 |
free((void *)nd->model);
|
2420 |
} |
2421 |
|
2422 |
static int net_host_check_device(const char *device) |
2423 |
{ |
2424 |
int i;
|
2425 |
const char *valid_param_list[] = { "tap", "socket", "dump" |
2426 |
#ifdef CONFIG_SLIRP
|
2427 |
,"user"
|
2428 |
#endif
|
2429 |
#ifdef CONFIG_VDE
|
2430 |
,"vde"
|
2431 |
#endif
|
2432 |
}; |
2433 |
for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { |
2434 |
if (!strncmp(valid_param_list[i], device,
|
2435 |
strlen(valid_param_list[i]))) |
2436 |
return 1; |
2437 |
} |
2438 |
|
2439 |
return 0; |
2440 |
} |
2441 |
|
2442 |
void net_host_device_add(Monitor *mon, const char *device, const char *opts) |
2443 |
{ |
2444 |
if (!net_host_check_device(device)) {
|
2445 |
monitor_printf(mon, "invalid host network device %s\n", device);
|
2446 |
return;
|
2447 |
} |
2448 |
if (net_client_init(mon, device, opts ? opts : "") < 0) { |
2449 |
monitor_printf(mon, "adding host network device %s failed\n", device);
|
2450 |
} |
2451 |
} |
2452 |
|
2453 |
void net_host_device_remove(Monitor *mon, int vlan_id, const char *device) |
2454 |
{ |
2455 |
VLANState *vlan; |
2456 |
VLANClientState *vc; |
2457 |
|
2458 |
vlan = qemu_find_vlan(vlan_id); |
2459 |
|
2460 |
for (vc = vlan->first_client; vc != NULL; vc = vc->next) { |
2461 |
if (!strcmp(vc->name, device)) {
|
2462 |
break;
|
2463 |
} |
2464 |
} |
2465 |
|
2466 |
if (!vc) {
|
2467 |
monitor_printf(mon, "can't find device %s\n", device);
|
2468 |
return;
|
2469 |
} |
2470 |
if (!net_host_check_device(vc->model)) {
|
2471 |
monitor_printf(mon, "invalid host network device %s\n", device);
|
2472 |
return;
|
2473 |
} |
2474 |
qemu_del_vlan_client(vc); |
2475 |
} |
2476 |
|
2477 |
int net_client_parse(const char *str) |
2478 |
{ |
2479 |
const char *p; |
2480 |
char *q;
|
2481 |
char device[64]; |
2482 |
|
2483 |
p = str; |
2484 |
q = device; |
2485 |
while (*p != '\0' && *p != ',') { |
2486 |
if ((q - device) < sizeof(device) - 1) |
2487 |
*q++ = *p; |
2488 |
p++; |
2489 |
} |
2490 |
*q = '\0';
|
2491 |
if (*p == ',') |
2492 |
p++; |
2493 |
|
2494 |
return net_client_init(NULL, device, p); |
2495 |
} |
2496 |
|
2497 |
void net_set_boot_mask(int net_boot_mask) |
2498 |
{ |
2499 |
int i;
|
2500 |
|
2501 |
/* Only the first four NICs may be bootable */
|
2502 |
net_boot_mask = net_boot_mask & 0xF;
|
2503 |
|
2504 |
for (i = 0; i < nb_nics; i++) { |
2505 |
if (net_boot_mask & (1 << i)) { |
2506 |
nd_table[i].bootable = 1;
|
2507 |
net_boot_mask &= ~(1 << i);
|
2508 |
} |
2509 |
} |
2510 |
|
2511 |
if (net_boot_mask) {
|
2512 |
fprintf(stderr, "Cannot boot from non-existent NIC\n");
|
2513 |
exit(1);
|
2514 |
} |
2515 |
} |
2516 |
|
2517 |
void do_info_network(Monitor *mon)
|
2518 |
{ |
2519 |
VLANState *vlan; |
2520 |
VLANClientState *vc; |
2521 |
|
2522 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
2523 |
monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
|
2524 |
for(vc = vlan->first_client; vc != NULL; vc = vc->next) |
2525 |
monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
|
2526 |
} |
2527 |
} |
2528 |
|
2529 |
int do_set_link(Monitor *mon, const char *name, const char *up_or_down) |
2530 |
{ |
2531 |
VLANState *vlan; |
2532 |
VLANClientState *vc = NULL;
|
2533 |
|
2534 |
for (vlan = first_vlan; vlan != NULL; vlan = vlan->next) |
2535 |
for (vc = vlan->first_client; vc != NULL; vc = vc->next) |
2536 |
if (strcmp(vc->name, name) == 0) |
2537 |
goto done;
|
2538 |
done:
|
2539 |
|
2540 |
if (!vc) {
|
2541 |
monitor_printf(mon, "could not find network device '%s'", name);
|
2542 |
return 0; |
2543 |
} |
2544 |
|
2545 |
if (strcmp(up_or_down, "up") == 0) |
2546 |
vc->link_down = 0;
|
2547 |
else if (strcmp(up_or_down, "down") == 0) |
2548 |
vc->link_down = 1;
|
2549 |
else
|
2550 |
monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
|
2551 |
"valid\n", up_or_down);
|
2552 |
|
2553 |
if (vc->link_status_changed)
|
2554 |
vc->link_status_changed(vc); |
2555 |
|
2556 |
return 1; |
2557 |
} |
2558 |
|
2559 |
void net_cleanup(void) |
2560 |
{ |
2561 |
VLANState *vlan; |
2562 |
|
2563 |
/* close network clients */
|
2564 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
2565 |
VLANClientState *vc = vlan->first_client; |
2566 |
|
2567 |
while (vc) {
|
2568 |
VLANClientState *next = vc->next; |
2569 |
|
2570 |
qemu_del_vlan_client(vc); |
2571 |
|
2572 |
vc = next; |
2573 |
} |
2574 |
} |
2575 |
} |
2576 |
|
2577 |
void net_client_check(void) |
2578 |
{ |
2579 |
VLANState *vlan; |
2580 |
|
2581 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
2582 |
if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0) |
2583 |
continue;
|
2584 |
if (vlan->nb_guest_devs == 0) |
2585 |
fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
|
2586 |
if (vlan->nb_host_devs == 0) |
2587 |
fprintf(stderr, |
2588 |
"Warning: vlan %d is not connected to host network\n",
|
2589 |
vlan->id); |
2590 |
} |
2591 |
} |