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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> |
30 |
#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> |
40 |
#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> |
50 |
#endif
|
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#include <arpa/inet.h> |
52 |
#include <dirent.h> |
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#include <netdb.h> |
54 |
#include <sys/select.h> |
55 |
#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> |
64 |
#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> |
77 |
#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" |
120 |
#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; |
140 |
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++) { |
144 |
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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} |
156 |
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 |
{ |
163 |
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; |
174 |
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; |
202 |
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; |
211 |
} |
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 |
{ |
217 |
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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|
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if ((src_str = strchr(input_str,'@'))) { |
232 |
*src_str = '\0';
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src_str++; |
234 |
} |
235 |
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if (parse_host_port(haddr, host_str) < 0) |
237 |
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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260 |
|
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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 |
|
284 |
#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));
|
291 |
p = strchr(str, ',');
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292 |
if (p)
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len = MIN(len, p - str); |
294 |
|
295 |
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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307 |
"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);
|
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_flush_queued_packets(VLANClientState *vc)
|
443 |
{ |
444 |
VLANPacket *packet; |
445 |
|
446 |
while ((packet = vc->vlan->send_queue) != NULL) { |
447 |
int ret;
|
448 |
|
449 |
vc->vlan->send_queue = packet->next; |
450 |
|
451 |
ret = qemu_deliver_packet(packet->sender, packet->data, packet->size); |
452 |
if (ret == 0 && packet->sent_cb != NULL) { |
453 |
packet->next = vc->vlan->send_queue; |
454 |
vc->vlan->send_queue = packet; |
455 |
break;
|
456 |
} |
457 |
|
458 |
if (packet->sent_cb)
|
459 |
packet->sent_cb(packet->sender); |
460 |
|
461 |
qemu_free(packet); |
462 |
} |
463 |
} |
464 |
|
465 |
static void qemu_enqueue_packet(VLANClientState *sender, |
466 |
const uint8_t *buf, int size, |
467 |
NetPacketSent *sent_cb) |
468 |
{ |
469 |
VLANPacket *packet; |
470 |
|
471 |
packet = qemu_malloc(sizeof(VLANPacket) + size);
|
472 |
packet->next = sender->vlan->send_queue; |
473 |
packet->sender = sender; |
474 |
packet->size = size; |
475 |
packet->sent_cb = sent_cb; |
476 |
memcpy(packet->data, buf, size); |
477 |
sender->vlan->send_queue = packet; |
478 |
} |
479 |
|
480 |
ssize_t qemu_send_packet_async(VLANClientState *sender, |
481 |
const uint8_t *buf, int size, |
482 |
NetPacketSent *sent_cb) |
483 |
{ |
484 |
int ret;
|
485 |
|
486 |
if (sender->link_down) {
|
487 |
return size;
|
488 |
} |
489 |
|
490 |
#ifdef DEBUG_NET
|
491 |
printf("vlan %d send:\n", sender->vlan->id);
|
492 |
hex_dump(stdout, buf, size); |
493 |
#endif
|
494 |
|
495 |
if (sender->vlan->delivering) {
|
496 |
qemu_enqueue_packet(sender, buf, size, NULL);
|
497 |
return size;
|
498 |
} |
499 |
|
500 |
ret = qemu_deliver_packet(sender, buf, size); |
501 |
if (ret == 0 && sent_cb != NULL) { |
502 |
qemu_enqueue_packet(sender, buf, size, sent_cb); |
503 |
return 0; |
504 |
} |
505 |
|
506 |
qemu_flush_queued_packets(sender); |
507 |
|
508 |
return ret;
|
509 |
} |
510 |
|
511 |
void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size) |
512 |
{ |
513 |
qemu_send_packet_async(vc, buf, size, NULL);
|
514 |
} |
515 |
|
516 |
static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, |
517 |
int iovcnt)
|
518 |
{ |
519 |
uint8_t buffer[4096];
|
520 |
size_t offset = 0;
|
521 |
int i;
|
522 |
|
523 |
for (i = 0; i < iovcnt; i++) { |
524 |
size_t len; |
525 |
|
526 |
len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
|
527 |
memcpy(buffer + offset, iov[i].iov_base, len); |
528 |
offset += len; |
529 |
} |
530 |
|
531 |
return vc->receive(vc, buffer, offset);
|
532 |
} |
533 |
|
534 |
static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) |
535 |
{ |
536 |
size_t offset = 0;
|
537 |
int i;
|
538 |
|
539 |
for (i = 0; i < iovcnt; i++) |
540 |
offset += iov[i].iov_len; |
541 |
return offset;
|
542 |
} |
543 |
|
544 |
static int qemu_deliver_packet_iov(VLANClientState *sender, |
545 |
const struct iovec *iov, int iovcnt) |
546 |
{ |
547 |
VLANClientState *vc; |
548 |
int ret = -1; |
549 |
|
550 |
sender->vlan->delivering = 1;
|
551 |
|
552 |
for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) { |
553 |
ssize_t len; |
554 |
|
555 |
if (vc == sender) {
|
556 |
continue;
|
557 |
} |
558 |
|
559 |
if (vc->link_down) {
|
560 |
ret = calc_iov_length(iov, iovcnt); |
561 |
continue;
|
562 |
} |
563 |
|
564 |
if (vc->receive_iov) {
|
565 |
len = vc->receive_iov(vc, iov, iovcnt); |
566 |
} else {
|
567 |
len = vc_sendv_compat(vc, iov, iovcnt); |
568 |
} |
569 |
|
570 |
ret = (ret >= 0) ? ret : len;
|
571 |
} |
572 |
|
573 |
sender->vlan->delivering = 0;
|
574 |
|
575 |
return ret;
|
576 |
} |
577 |
|
578 |
static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender,
|
579 |
const struct iovec *iov, int iovcnt, |
580 |
NetPacketSent *sent_cb) |
581 |
{ |
582 |
VLANPacket *packet; |
583 |
size_t max_len = 0;
|
584 |
int i;
|
585 |
|
586 |
max_len = calc_iov_length(iov, iovcnt); |
587 |
|
588 |
packet = qemu_malloc(sizeof(VLANPacket) + max_len);
|
589 |
packet->next = sender->vlan->send_queue; |
590 |
packet->sender = sender; |
591 |
packet->sent_cb = sent_cb; |
592 |
packet->size = 0;
|
593 |
|
594 |
for (i = 0; i < iovcnt; i++) { |
595 |
size_t len = iov[i].iov_len; |
596 |
|
597 |
memcpy(packet->data + packet->size, iov[i].iov_base, len); |
598 |
packet->size += len; |
599 |
} |
600 |
|
601 |
sender->vlan->send_queue = packet; |
602 |
|
603 |
return packet->size;
|
604 |
} |
605 |
|
606 |
ssize_t qemu_sendv_packet_async(VLANClientState *sender, |
607 |
const struct iovec *iov, int iovcnt, |
608 |
NetPacketSent *sent_cb) |
609 |
{ |
610 |
int ret;
|
611 |
|
612 |
if (sender->link_down) {
|
613 |
return calc_iov_length(iov, iovcnt);
|
614 |
} |
615 |
|
616 |
if (sender->vlan->delivering) {
|
617 |
return qemu_enqueue_packet_iov(sender, iov, iovcnt, NULL); |
618 |
} |
619 |
|
620 |
ret = qemu_deliver_packet_iov(sender, iov, iovcnt); |
621 |
if (ret == 0 && sent_cb != NULL) { |
622 |
qemu_enqueue_packet_iov(sender, iov, iovcnt, sent_cb); |
623 |
return 0; |
624 |
} |
625 |
|
626 |
qemu_flush_queued_packets(sender); |
627 |
|
628 |
return ret;
|
629 |
} |
630 |
|
631 |
ssize_t |
632 |
qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt) |
633 |
{ |
634 |
return qemu_sendv_packet_async(vc, iov, iovcnt, NULL); |
635 |
} |
636 |
|
637 |
static void config_error(Monitor *mon, const char *fmt, ...) |
638 |
{ |
639 |
va_list ap; |
640 |
|
641 |
va_start(ap, fmt); |
642 |
if (mon) {
|
643 |
monitor_vprintf(mon, fmt, ap); |
644 |
} else {
|
645 |
fprintf(stderr, "qemu: ");
|
646 |
vfprintf(stderr, fmt, ap); |
647 |
exit(1);
|
648 |
} |
649 |
va_end(ap); |
650 |
} |
651 |
|
652 |
#if defined(CONFIG_SLIRP)
|
653 |
|
654 |
/* slirp network adapter */
|
655 |
|
656 |
struct slirp_config_str {
|
657 |
struct slirp_config_str *next;
|
658 |
const char *str; |
659 |
}; |
660 |
|
661 |
static int slirp_inited; |
662 |
static struct slirp_config_str *slirp_redirs; |
663 |
#ifndef _WIN32
|
664 |
static const char *slirp_smb_export; |
665 |
#endif
|
666 |
static VLANClientState *slirp_vc;
|
667 |
|
668 |
static void slirp_smb(const char *exported_dir); |
669 |
static void slirp_redirection(Monitor *mon, const char *redir_str); |
670 |
|
671 |
int slirp_can_output(void) |
672 |
{ |
673 |
return !slirp_vc || qemu_can_send_packet(slirp_vc);
|
674 |
} |
675 |
|
676 |
void slirp_output(const uint8_t *pkt, int pkt_len) |
677 |
{ |
678 |
#ifdef DEBUG_SLIRP
|
679 |
printf("slirp output:\n");
|
680 |
hex_dump(stdout, pkt, pkt_len); |
681 |
#endif
|
682 |
if (!slirp_vc)
|
683 |
return;
|
684 |
qemu_send_packet(slirp_vc, pkt, pkt_len); |
685 |
} |
686 |
|
687 |
int slirp_is_inited(void) |
688 |
{ |
689 |
return slirp_inited;
|
690 |
} |
691 |
|
692 |
static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
693 |
{ |
694 |
#ifdef DEBUG_SLIRP
|
695 |
printf("slirp input:\n");
|
696 |
hex_dump(stdout, buf, size); |
697 |
#endif
|
698 |
slirp_input(buf, size); |
699 |
return size;
|
700 |
} |
701 |
|
702 |
static int slirp_in_use; |
703 |
|
704 |
static void net_slirp_cleanup(VLANClientState *vc) |
705 |
{ |
706 |
slirp_in_use = 0;
|
707 |
} |
708 |
|
709 |
static int net_slirp_init(VLANState *vlan, const char *model, const char *name, |
710 |
int restricted, const char *ip) |
711 |
{ |
712 |
if (slirp_in_use) {
|
713 |
/* slirp only supports a single instance so far */
|
714 |
return -1; |
715 |
} |
716 |
if (!slirp_inited) {
|
717 |
slirp_inited = 1;
|
718 |
slirp_init(restricted, ip); |
719 |
|
720 |
while (slirp_redirs) {
|
721 |
struct slirp_config_str *config = slirp_redirs;
|
722 |
|
723 |
slirp_redirection(NULL, config->str);
|
724 |
slirp_redirs = config->next; |
725 |
qemu_free(config); |
726 |
} |
727 |
#ifndef _WIN32
|
728 |
if (slirp_smb_export) {
|
729 |
slirp_smb(slirp_smb_export); |
730 |
} |
731 |
#endif
|
732 |
} |
733 |
|
734 |
slirp_vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive,
|
735 |
NULL, net_slirp_cleanup, NULL); |
736 |
slirp_vc->info_str[0] = '\0'; |
737 |
slirp_in_use = 1;
|
738 |
return 0; |
739 |
} |
740 |
|
741 |
static void net_slirp_redir_print(void *opaque, int is_udp, |
742 |
struct in_addr *laddr, u_int lport,
|
743 |
struct in_addr *faddr, u_int fport)
|
744 |
{ |
745 |
Monitor *mon = (Monitor *)opaque; |
746 |
uint32_t h_addr; |
747 |
uint32_t g_addr; |
748 |
char buf[16]; |
749 |
|
750 |
h_addr = ntohl(faddr->s_addr); |
751 |
g_addr = ntohl(laddr->s_addr); |
752 |
|
753 |
monitor_printf(mon, " %s |", is_udp ? "udp" : "tcp" ); |
754 |
snprintf(buf, 15, "%d.%d.%d.%d", (h_addr >> 24) & 0xff, |
755 |
(h_addr >> 16) & 0xff, |
756 |
(h_addr >> 8) & 0xff, |
757 |
(h_addr) & 0xff);
|
758 |
monitor_printf(mon, " %15s |", buf);
|
759 |
monitor_printf(mon, " %5d |", fport);
|
760 |
|
761 |
snprintf(buf, 15, "%d.%d.%d.%d", (g_addr >> 24) & 0xff, |
762 |
(g_addr >> 16) & 0xff, |
763 |
(g_addr >> 8) & 0xff, |
764 |
(g_addr) & 0xff);
|
765 |
monitor_printf(mon, " %15s |", buf);
|
766 |
monitor_printf(mon, " %5d\n", lport);
|
767 |
|
768 |
} |
769 |
|
770 |
static void net_slirp_redir_list(Monitor *mon) |
771 |
{ |
772 |
if (!mon)
|
773 |
return;
|
774 |
|
775 |
monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
|
776 |
monitor_printf(mon, " | | | | \n");
|
777 |
slirp_redir_loop(net_slirp_redir_print, mon); |
778 |
} |
779 |
|
780 |
static void net_slirp_redir_rm(Monitor *mon, const char *port_str) |
781 |
{ |
782 |
int host_port;
|
783 |
char buf[256] = ""; |
784 |
const char *p = port_str; |
785 |
int is_udp = 0; |
786 |
int n;
|
787 |
|
788 |
if (!mon)
|
789 |
return;
|
790 |
|
791 |
if (!port_str || !port_str[0]) |
792 |
goto fail_syntax;
|
793 |
|
794 |
get_str_sep(buf, sizeof(buf), &p, ':'); |
795 |
|
796 |
if (!strcmp(buf, "tcp") || buf[0] == '\0') { |
797 |
is_udp = 0;
|
798 |
} else if (!strcmp(buf, "udp")) { |
799 |
is_udp = 1;
|
800 |
} else {
|
801 |
goto fail_syntax;
|
802 |
} |
803 |
|
804 |
host_port = atoi(p); |
805 |
|
806 |
n = slirp_redir_rm(is_udp, host_port); |
807 |
|
808 |
monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
|
809 |
is_udp ? "udp" : "tcp", host_port); |
810 |
return;
|
811 |
|
812 |
fail_syntax:
|
813 |
monitor_printf(mon, "invalid format\n");
|
814 |
} |
815 |
|
816 |
static void slirp_redirection(Monitor *mon, const char *redir_str) |
817 |
{ |
818 |
struct in_addr guest_addr;
|
819 |
int host_port, guest_port;
|
820 |
const char *p; |
821 |
char buf[256], *r; |
822 |
int is_udp;
|
823 |
|
824 |
p = redir_str; |
825 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
826 |
goto fail_syntax;
|
827 |
} |
828 |
if (!strcmp(buf, "tcp") || buf[0] == '\0') { |
829 |
is_udp = 0;
|
830 |
} else if (!strcmp(buf, "udp")) { |
831 |
is_udp = 1;
|
832 |
} else {
|
833 |
goto fail_syntax;
|
834 |
} |
835 |
|
836 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
837 |
goto fail_syntax;
|
838 |
} |
839 |
host_port = strtol(buf, &r, 0);
|
840 |
if (r == buf) {
|
841 |
goto fail_syntax;
|
842 |
} |
843 |
|
844 |
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
845 |
goto fail_syntax;
|
846 |
} |
847 |
if (buf[0] == '\0') { |
848 |
pstrcpy(buf, sizeof(buf), "10.0.2.15"); |
849 |
} |
850 |
if (!inet_aton(buf, &guest_addr)) {
|
851 |
goto fail_syntax;
|
852 |
} |
853 |
|
854 |
guest_port = strtol(p, &r, 0);
|
855 |
if (r == p) {
|
856 |
goto fail_syntax;
|
857 |
} |
858 |
|
859 |
if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) { |
860 |
config_error(mon, "could not set up redirection '%s'\n", redir_str);
|
861 |
} |
862 |
return;
|
863 |
|
864 |
fail_syntax:
|
865 |
config_error(mon, "invalid redirection format '%s'\n", redir_str);
|
866 |
} |
867 |
|
868 |
void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2) |
869 |
{ |
870 |
struct slirp_config_str *config;
|
871 |
|
872 |
if (!slirp_inited) {
|
873 |
if (mon) {
|
874 |
monitor_printf(mon, "user mode network stack not in use\n");
|
875 |
} else {
|
876 |
config = qemu_malloc(sizeof(*config));
|
877 |
config->str = redir_str; |
878 |
config->next = slirp_redirs; |
879 |
slirp_redirs = config; |
880 |
} |
881 |
return;
|
882 |
} |
883 |
|
884 |
if (!strcmp(redir_str, "remove")) { |
885 |
net_slirp_redir_rm(mon, redir_opt2); |
886 |
return;
|
887 |
} |
888 |
|
889 |
if (!strcmp(redir_str, "list")) { |
890 |
net_slirp_redir_list(mon); |
891 |
return;
|
892 |
} |
893 |
|
894 |
slirp_redirection(mon, redir_str); |
895 |
} |
896 |
|
897 |
#ifndef _WIN32
|
898 |
|
899 |
static char smb_dir[1024]; |
900 |
|
901 |
static void erase_dir(char *dir_name) |
902 |
{ |
903 |
DIR *d; |
904 |
struct dirent *de;
|
905 |
char filename[1024]; |
906 |
|
907 |
/* erase all the files in the directory */
|
908 |
if ((d = opendir(dir_name)) != NULL) { |
909 |
for(;;) {
|
910 |
de = readdir(d); |
911 |
if (!de)
|
912 |
break;
|
913 |
if (strcmp(de->d_name, ".") != 0 && |
914 |
strcmp(de->d_name, "..") != 0) { |
915 |
snprintf(filename, sizeof(filename), "%s/%s", |
916 |
smb_dir, de->d_name); |
917 |
if (unlink(filename) != 0) /* is it a directory? */ |
918 |
erase_dir(filename); |
919 |
} |
920 |
} |
921 |
closedir(d); |
922 |
rmdir(dir_name); |
923 |
} |
924 |
} |
925 |
|
926 |
/* automatic user mode samba server configuration */
|
927 |
static void smb_exit(void) |
928 |
{ |
929 |
erase_dir(smb_dir); |
930 |
} |
931 |
|
932 |
static void slirp_smb(const char *exported_dir) |
933 |
{ |
934 |
char smb_conf[1024]; |
935 |
char smb_cmdline[1024]; |
936 |
FILE *f; |
937 |
|
938 |
/* XXX: better tmp dir construction */
|
939 |
snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid()); |
940 |
if (mkdir(smb_dir, 0700) < 0) { |
941 |
fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
|
942 |
exit(1);
|
943 |
} |
944 |
snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf"); |
945 |
|
946 |
f = fopen(smb_conf, "w");
|
947 |
if (!f) {
|
948 |
fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
|
949 |
exit(1);
|
950 |
} |
951 |
fprintf(f, |
952 |
"[global]\n"
|
953 |
"private dir=%s\n"
|
954 |
"smb ports=0\n"
|
955 |
"socket address=127.0.0.1\n"
|
956 |
"pid directory=%s\n"
|
957 |
"lock directory=%s\n"
|
958 |
"log file=%s/log.smbd\n"
|
959 |
"smb passwd file=%s/smbpasswd\n"
|
960 |
"security = share\n"
|
961 |
"[qemu]\n"
|
962 |
"path=%s\n"
|
963 |
"read only=no\n"
|
964 |
"guest ok=yes\n",
|
965 |
smb_dir, |
966 |
smb_dir, |
967 |
smb_dir, |
968 |
smb_dir, |
969 |
smb_dir, |
970 |
exported_dir |
971 |
); |
972 |
fclose(f); |
973 |
atexit(smb_exit); |
974 |
|
975 |
snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s", |
976 |
SMBD_COMMAND, smb_conf); |
977 |
|
978 |
slirp_add_exec(0, smb_cmdline, 4, 139); |
979 |
} |
980 |
|
981 |
/* automatic user mode samba server configuration */
|
982 |
void net_slirp_smb(const char *exported_dir) |
983 |
{ |
984 |
if (slirp_smb_export) {
|
985 |
fprintf(stderr, "-smb given twice\n");
|
986 |
exit(1);
|
987 |
} |
988 |
slirp_smb_export = exported_dir; |
989 |
if (slirp_inited) {
|
990 |
slirp_smb(exported_dir); |
991 |
} |
992 |
} |
993 |
|
994 |
#endif /* !defined(_WIN32) */ |
995 |
|
996 |
void do_info_slirp(Monitor *mon)
|
997 |
{ |
998 |
slirp_stats(); |
999 |
} |
1000 |
|
1001 |
struct VMChannel {
|
1002 |
CharDriverState *hd; |
1003 |
int port;
|
1004 |
}; |
1005 |
|
1006 |
static int vmchannel_can_read(void *opaque) |
1007 |
{ |
1008 |
struct VMChannel *vmc = (struct VMChannel*)opaque; |
1009 |
return slirp_socket_can_recv(4, vmc->port); |
1010 |
} |
1011 |
|
1012 |
static void vmchannel_read(void *opaque, const uint8_t *buf, int size) |
1013 |
{ |
1014 |
struct VMChannel *vmc = (struct VMChannel*)opaque; |
1015 |
slirp_socket_recv(4, vmc->port, buf, size);
|
1016 |
} |
1017 |
|
1018 |
#endif /* CONFIG_SLIRP */ |
1019 |
|
1020 |
#if !defined(_WIN32)
|
1021 |
|
1022 |
typedef struct TAPState { |
1023 |
VLANClientState *vc; |
1024 |
int fd;
|
1025 |
char down_script[1024]; |
1026 |
char down_script_arg[128]; |
1027 |
uint8_t buf[4096];
|
1028 |
} TAPState; |
1029 |
|
1030 |
static int launch_script(const char *setup_script, const char *ifname, int fd); |
1031 |
|
1032 |
static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov, |
1033 |
int iovcnt)
|
1034 |
{ |
1035 |
TAPState *s = vc->opaque; |
1036 |
ssize_t len; |
1037 |
|
1038 |
do {
|
1039 |
len = writev(s->fd, iov, iovcnt); |
1040 |
} while (len == -1 && (errno == EINTR || errno == EAGAIN)); |
1041 |
|
1042 |
return len;
|
1043 |
} |
1044 |
|
1045 |
static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
1046 |
{ |
1047 |
TAPState *s = vc->opaque; |
1048 |
ssize_t len; |
1049 |
|
1050 |
do {
|
1051 |
len = write(s->fd, buf, size); |
1052 |
} while (len == -1 && (errno == EINTR || errno == EAGAIN)); |
1053 |
|
1054 |
return len;
|
1055 |
} |
1056 |
|
1057 |
static int tap_can_send(void *opaque) |
1058 |
{ |
1059 |
TAPState *s = opaque; |
1060 |
|
1061 |
return qemu_can_send_packet(s->vc);
|
1062 |
} |
1063 |
|
1064 |
#ifdef __sun__
|
1065 |
static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen) |
1066 |
{ |
1067 |
struct strbuf sbuf;
|
1068 |
int f = 0; |
1069 |
|
1070 |
sbuf.maxlen = maxlen; |
1071 |
sbuf.buf = (char *)buf;
|
1072 |
|
1073 |
return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1; |
1074 |
} |
1075 |
#else
|
1076 |
static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen) |
1077 |
{ |
1078 |
return read(tapfd, buf, maxlen);
|
1079 |
} |
1080 |
#endif
|
1081 |
|
1082 |
static void tap_send(void *opaque); |
1083 |
|
1084 |
static void tap_send_completed(VLANClientState *vc) |
1085 |
{ |
1086 |
TAPState *s = vc->opaque; |
1087 |
|
1088 |
qemu_set_fd_handler2(s->fd, tap_can_send, tap_send, NULL, s);
|
1089 |
} |
1090 |
|
1091 |
static void tap_send(void *opaque) |
1092 |
{ |
1093 |
TAPState *s = opaque; |
1094 |
int size;
|
1095 |
|
1096 |
do {
|
1097 |
size = tap_read_packet(s->fd, s->buf, sizeof(s->buf));
|
1098 |
if (size <= 0) { |
1099 |
break;
|
1100 |
} |
1101 |
|
1102 |
size = qemu_send_packet_async(s->vc, s->buf, size, tap_send_completed); |
1103 |
if (size == 0) { |
1104 |
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
1105 |
} |
1106 |
} while (size > 0); |
1107 |
} |
1108 |
|
1109 |
static void tap_cleanup(VLANClientState *vc) |
1110 |
{ |
1111 |
TAPState *s = vc->opaque; |
1112 |
|
1113 |
if (s->down_script[0]) |
1114 |
launch_script(s->down_script, s->down_script_arg, s->fd); |
1115 |
|
1116 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1117 |
close(s->fd); |
1118 |
qemu_free(s); |
1119 |
} |
1120 |
|
1121 |
/* fd support */
|
1122 |
|
1123 |
static TAPState *net_tap_fd_init(VLANState *vlan,
|
1124 |
const char *model, |
1125 |
const char *name, |
1126 |
int fd)
|
1127 |
{ |
1128 |
TAPState *s; |
1129 |
|
1130 |
s = qemu_mallocz(sizeof(TAPState));
|
1131 |
s->fd = fd; |
1132 |
s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive,
|
1133 |
tap_receive_iov, tap_cleanup, s); |
1134 |
qemu_set_fd_handler2(s->fd, tap_can_send, tap_send, NULL, s);
|
1135 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd); |
1136 |
return s;
|
1137 |
} |
1138 |
|
1139 |
#if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
|
1140 |
static int tap_open(char *ifname, int ifname_size) |
1141 |
{ |
1142 |
int fd;
|
1143 |
char *dev;
|
1144 |
struct stat s;
|
1145 |
|
1146 |
TFR(fd = open("/dev/tap", O_RDWR));
|
1147 |
if (fd < 0) { |
1148 |
fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
|
1149 |
return -1; |
1150 |
} |
1151 |
|
1152 |
fstat(fd, &s); |
1153 |
dev = devname(s.st_rdev, S_IFCHR); |
1154 |
pstrcpy(ifname, ifname_size, dev); |
1155 |
|
1156 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
1157 |
return fd;
|
1158 |
} |
1159 |
#elif defined(__sun__)
|
1160 |
#define TUNNEWPPA (('T'<<16) | 0x0001) |
1161 |
/*
|
1162 |
* Allocate TAP device, returns opened fd.
|
1163 |
* Stores dev name in the first arg(must be large enough).
|
1164 |
*/
|
1165 |
static int tap_alloc(char *dev, size_t dev_size) |
1166 |
{ |
1167 |
int tap_fd, if_fd, ppa = -1; |
1168 |
static int ip_fd = 0; |
1169 |
char *ptr;
|
1170 |
|
1171 |
static int arp_fd = 0; |
1172 |
int ip_muxid, arp_muxid;
|
1173 |
struct strioctl strioc_if, strioc_ppa;
|
1174 |
int link_type = I_PLINK;;
|
1175 |
struct lifreq ifr;
|
1176 |
char actual_name[32] = ""; |
1177 |
|
1178 |
memset(&ifr, 0x0, sizeof(ifr)); |
1179 |
|
1180 |
if( *dev ){
|
1181 |
ptr = dev; |
1182 |
while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++; |
1183 |
ppa = atoi(ptr); |
1184 |
} |
1185 |
|
1186 |
/* Check if IP device was opened */
|
1187 |
if( ip_fd )
|
1188 |
close(ip_fd); |
1189 |
|
1190 |
TFR(ip_fd = open("/dev/udp", O_RDWR, 0)); |
1191 |
if (ip_fd < 0) { |
1192 |
syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
|
1193 |
return -1; |
1194 |
} |
1195 |
|
1196 |
TFR(tap_fd = open("/dev/tap", O_RDWR, 0)); |
1197 |
if (tap_fd < 0) { |
1198 |
syslog(LOG_ERR, "Can't open /dev/tap");
|
1199 |
return -1; |
1200 |
} |
1201 |
|
1202 |
/* Assign a new PPA and get its unit number. */
|
1203 |
strioc_ppa.ic_cmd = TUNNEWPPA; |
1204 |
strioc_ppa.ic_timout = 0;
|
1205 |
strioc_ppa.ic_len = sizeof(ppa);
|
1206 |
strioc_ppa.ic_dp = (char *)&ppa;
|
1207 |
if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0) |
1208 |
syslog (LOG_ERR, "Can't assign new interface");
|
1209 |
|
1210 |
TFR(if_fd = open("/dev/tap", O_RDWR, 0)); |
1211 |
if (if_fd < 0) { |
1212 |
syslog(LOG_ERR, "Can't open /dev/tap (2)");
|
1213 |
return -1; |
1214 |
} |
1215 |
if(ioctl(if_fd, I_PUSH, "ip") < 0){ |
1216 |
syslog(LOG_ERR, "Can't push IP module");
|
1217 |
return -1; |
1218 |
} |
1219 |
|
1220 |
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0) |
1221 |
syslog(LOG_ERR, "Can't get flags\n");
|
1222 |
|
1223 |
snprintf (actual_name, 32, "tap%d", ppa); |
1224 |
pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
|
1225 |
|
1226 |
ifr.lifr_ppa = ppa; |
1227 |
/* Assign ppa according to the unit number returned by tun device */
|
1228 |
|
1229 |
if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0) |
1230 |
syslog (LOG_ERR, "Can't set PPA %d", ppa);
|
1231 |
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0) |
1232 |
syslog (LOG_ERR, "Can't get flags\n");
|
1233 |
/* Push arp module to if_fd */
|
1234 |
if (ioctl (if_fd, I_PUSH, "arp") < 0) |
1235 |
syslog (LOG_ERR, "Can't push ARP module (2)");
|
1236 |
|
1237 |
/* Push arp module to ip_fd */
|
1238 |
if (ioctl (ip_fd, I_POP, NULL) < 0) |
1239 |
syslog (LOG_ERR, "I_POP failed\n");
|
1240 |
if (ioctl (ip_fd, I_PUSH, "arp") < 0) |
1241 |
syslog (LOG_ERR, "Can't push ARP module (3)\n");
|
1242 |
/* Open arp_fd */
|
1243 |
TFR(arp_fd = open ("/dev/tap", O_RDWR, 0)); |
1244 |
if (arp_fd < 0) |
1245 |
syslog (LOG_ERR, "Can't open %s\n", "/dev/tap"); |
1246 |
|
1247 |
/* Set ifname to arp */
|
1248 |
strioc_if.ic_cmd = SIOCSLIFNAME; |
1249 |
strioc_if.ic_timout = 0;
|
1250 |
strioc_if.ic_len = sizeof(ifr);
|
1251 |
strioc_if.ic_dp = (char *)𝔦
|
1252 |
if (ioctl(arp_fd, I_STR, &strioc_if) < 0){ |
1253 |
syslog (LOG_ERR, "Can't set ifname to arp\n");
|
1254 |
} |
1255 |
|
1256 |
if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){ |
1257 |
syslog(LOG_ERR, "Can't link TAP device to IP");
|
1258 |
return -1; |
1259 |
} |
1260 |
|
1261 |
if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0) |
1262 |
syslog (LOG_ERR, "Can't link TAP device to ARP");
|
1263 |
|
1264 |
close (if_fd); |
1265 |
|
1266 |
memset(&ifr, 0x0, sizeof(ifr)); |
1267 |
pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
|
1268 |
ifr.lifr_ip_muxid = ip_muxid; |
1269 |
ifr.lifr_arp_muxid = arp_muxid; |
1270 |
|
1271 |
if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0) |
1272 |
{ |
1273 |
ioctl (ip_fd, I_PUNLINK , arp_muxid); |
1274 |
ioctl (ip_fd, I_PUNLINK, ip_muxid); |
1275 |
syslog (LOG_ERR, "Can't set multiplexor id");
|
1276 |
} |
1277 |
|
1278 |
snprintf(dev, dev_size, "tap%d", ppa);
|
1279 |
return tap_fd;
|
1280 |
} |
1281 |
|
1282 |
static int tap_open(char *ifname, int ifname_size) |
1283 |
{ |
1284 |
char dev[10]=""; |
1285 |
int fd;
|
1286 |
if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){ |
1287 |
fprintf(stderr, "Cannot allocate TAP device\n");
|
1288 |
return -1; |
1289 |
} |
1290 |
pstrcpy(ifname, ifname_size, dev); |
1291 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
1292 |
return fd;
|
1293 |
} |
1294 |
#elif defined (_AIX)
|
1295 |
static int tap_open(char *ifname, int ifname_size) |
1296 |
{ |
1297 |
fprintf (stderr, "no tap on AIX\n");
|
1298 |
return -1; |
1299 |
} |
1300 |
#else
|
1301 |
static int tap_open(char *ifname, int ifname_size) |
1302 |
{ |
1303 |
struct ifreq ifr;
|
1304 |
int fd, ret;
|
1305 |
|
1306 |
TFR(fd = open("/dev/net/tun", O_RDWR));
|
1307 |
if (fd < 0) { |
1308 |
fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
|
1309 |
return -1; |
1310 |
} |
1311 |
memset(&ifr, 0, sizeof(ifr)); |
1312 |
ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
1313 |
if (ifname[0] != '\0') |
1314 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname); |
1315 |
else
|
1316 |
pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
|
1317 |
ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
|
1318 |
if (ret != 0) { |
1319 |
fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
|
1320 |
close(fd); |
1321 |
return -1; |
1322 |
} |
1323 |
pstrcpy(ifname, ifname_size, ifr.ifr_name); |
1324 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
1325 |
return fd;
|
1326 |
} |
1327 |
#endif
|
1328 |
|
1329 |
static int launch_script(const char *setup_script, const char *ifname, int fd) |
1330 |
{ |
1331 |
sigset_t oldmask, mask; |
1332 |
int pid, status;
|
1333 |
char *args[3]; |
1334 |
char **parg;
|
1335 |
|
1336 |
sigemptyset(&mask); |
1337 |
sigaddset(&mask, SIGCHLD); |
1338 |
sigprocmask(SIG_BLOCK, &mask, &oldmask); |
1339 |
|
1340 |
/* try to launch network script */
|
1341 |
pid = fork(); |
1342 |
if (pid == 0) { |
1343 |
int open_max = sysconf(_SC_OPEN_MAX), i;
|
1344 |
|
1345 |
for (i = 0; i < open_max; i++) { |
1346 |
if (i != STDIN_FILENO &&
|
1347 |
i != STDOUT_FILENO && |
1348 |
i != STDERR_FILENO && |
1349 |
i != fd) { |
1350 |
close(i); |
1351 |
} |
1352 |
} |
1353 |
parg = args; |
1354 |
*parg++ = (char *)setup_script;
|
1355 |
*parg++ = (char *)ifname;
|
1356 |
*parg++ = NULL;
|
1357 |
execv(setup_script, args); |
1358 |
_exit(1);
|
1359 |
} else if (pid > 0) { |
1360 |
while (waitpid(pid, &status, 0) != pid) { |
1361 |
/* loop */
|
1362 |
} |
1363 |
sigprocmask(SIG_SETMASK, &oldmask, NULL);
|
1364 |
|
1365 |
if (WIFEXITED(status) && WEXITSTATUS(status) == 0) { |
1366 |
return 0; |
1367 |
} |
1368 |
} |
1369 |
fprintf(stderr, "%s: could not launch network script\n", setup_script);
|
1370 |
return -1; |
1371 |
} |
1372 |
|
1373 |
static int net_tap_init(VLANState *vlan, const char *model, |
1374 |
const char *name, const char *ifname1, |
1375 |
const char *setup_script, const char *down_script) |
1376 |
{ |
1377 |
TAPState *s; |
1378 |
int fd;
|
1379 |
char ifname[128]; |
1380 |
|
1381 |
if (ifname1 != NULL) |
1382 |
pstrcpy(ifname, sizeof(ifname), ifname1);
|
1383 |
else
|
1384 |
ifname[0] = '\0'; |
1385 |
TFR(fd = tap_open(ifname, sizeof(ifname)));
|
1386 |
if (fd < 0) |
1387 |
return -1; |
1388 |
|
1389 |
if (!setup_script || !strcmp(setup_script, "no")) |
1390 |
setup_script = "";
|
1391 |
if (setup_script[0] != '\0') { |
1392 |
if (launch_script(setup_script, ifname, fd))
|
1393 |
return -1; |
1394 |
} |
1395 |
s = net_tap_fd_init(vlan, model, name, fd); |
1396 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1397 |
"ifname=%s,script=%s,downscript=%s",
|
1398 |
ifname, setup_script, down_script); |
1399 |
if (down_script && strcmp(down_script, "no")) { |
1400 |
snprintf(s->down_script, sizeof(s->down_script), "%s", down_script); |
1401 |
snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname); |
1402 |
} |
1403 |
return 0; |
1404 |
} |
1405 |
|
1406 |
#endif /* !_WIN32 */ |
1407 |
|
1408 |
#if defined(CONFIG_VDE)
|
1409 |
typedef struct VDEState { |
1410 |
VLANClientState *vc; |
1411 |
VDECONN *vde; |
1412 |
} VDEState; |
1413 |
|
1414 |
static void vde_to_qemu(void *opaque) |
1415 |
{ |
1416 |
VDEState *s = opaque; |
1417 |
uint8_t buf[4096];
|
1418 |
int size;
|
1419 |
|
1420 |
size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0); |
1421 |
if (size > 0) { |
1422 |
qemu_send_packet(s->vc, buf, size); |
1423 |
} |
1424 |
} |
1425 |
|
1426 |
static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
1427 |
{ |
1428 |
VDEState *s = vc->opaque; |
1429 |
ssize ret; |
1430 |
|
1431 |
do {
|
1432 |
ret = vde_send(s->vde, (const char *)buf, size, 0); |
1433 |
} while (ret < 0 && errno == EINTR); |
1434 |
|
1435 |
return ret;
|
1436 |
} |
1437 |
|
1438 |
static void vde_cleanup(VLANClientState *vc) |
1439 |
{ |
1440 |
VDEState *s = vc->opaque; |
1441 |
qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL); |
1442 |
vde_close(s->vde); |
1443 |
qemu_free(s); |
1444 |
} |
1445 |
|
1446 |
static int net_vde_init(VLANState *vlan, const char *model, |
1447 |
const char *name, const char *sock, |
1448 |
int port, const char *group, int mode) |
1449 |
{ |
1450 |
VDEState *s; |
1451 |
char *init_group = strlen(group) ? (char *)group : NULL; |
1452 |
char *init_sock = strlen(sock) ? (char *)sock : NULL; |
1453 |
|
1454 |
struct vde_open_args args = {
|
1455 |
.port = port, |
1456 |
.group = init_group, |
1457 |
.mode = mode, |
1458 |
}; |
1459 |
|
1460 |
s = qemu_mallocz(sizeof(VDEState));
|
1461 |
s->vde = vde_open(init_sock, (char *)"QEMU", &args); |
1462 |
if (!s->vde){
|
1463 |
free(s); |
1464 |
return -1; |
1465 |
} |
1466 |
s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive,
|
1467 |
NULL, vde_cleanup, s);
|
1468 |
qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
|
1469 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d", |
1470 |
sock, vde_datafd(s->vde)); |
1471 |
return 0; |
1472 |
} |
1473 |
#endif
|
1474 |
|
1475 |
/* network connection */
|
1476 |
typedef struct NetSocketState { |
1477 |
VLANClientState *vc; |
1478 |
int fd;
|
1479 |
int state; /* 0 = getting length, 1 = getting data */ |
1480 |
unsigned int index; |
1481 |
unsigned int packet_len; |
1482 |
uint8_t buf[4096];
|
1483 |
struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ |
1484 |
} NetSocketState; |
1485 |
|
1486 |
typedef struct NetSocketListenState { |
1487 |
VLANState *vlan; |
1488 |
char *model;
|
1489 |
char *name;
|
1490 |
int fd;
|
1491 |
} NetSocketListenState; |
1492 |
|
1493 |
/* XXX: we consider we can send the whole packet without blocking */
|
1494 |
static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
1495 |
{ |
1496 |
NetSocketState *s = vc->opaque; |
1497 |
uint32_t len; |
1498 |
len = htonl(size); |
1499 |
|
1500 |
send_all(s->fd, (const uint8_t *)&len, sizeof(len)); |
1501 |
return send_all(s->fd, buf, size);
|
1502 |
} |
1503 |
|
1504 |
static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size) |
1505 |
{ |
1506 |
NetSocketState *s = vc->opaque; |
1507 |
|
1508 |
return sendto(s->fd, buf, size, 0, |
1509 |
(struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst)); |
1510 |
} |
1511 |
|
1512 |
static void net_socket_send(void *opaque) |
1513 |
{ |
1514 |
NetSocketState *s = opaque; |
1515 |
int size, err;
|
1516 |
unsigned l;
|
1517 |
uint8_t buf1[4096];
|
1518 |
const uint8_t *buf;
|
1519 |
|
1520 |
size = recv(s->fd, buf1, sizeof(buf1), 0); |
1521 |
if (size < 0) { |
1522 |
err = socket_error(); |
1523 |
if (err != EWOULDBLOCK)
|
1524 |
goto eoc;
|
1525 |
} else if (size == 0) { |
1526 |
/* end of connection */
|
1527 |
eoc:
|
1528 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1529 |
closesocket(s->fd); |
1530 |
return;
|
1531 |
} |
1532 |
buf = buf1; |
1533 |
while (size > 0) { |
1534 |
/* reassemble a packet from the network */
|
1535 |
switch(s->state) {
|
1536 |
case 0: |
1537 |
l = 4 - s->index;
|
1538 |
if (l > size)
|
1539 |
l = size; |
1540 |
memcpy(s->buf + s->index, buf, l); |
1541 |
buf += l; |
1542 |
size -= l; |
1543 |
s->index += l; |
1544 |
if (s->index == 4) { |
1545 |
/* got length */
|
1546 |
s->packet_len = ntohl(*(uint32_t *)s->buf); |
1547 |
s->index = 0;
|
1548 |
s->state = 1;
|
1549 |
} |
1550 |
break;
|
1551 |
case 1: |
1552 |
l = s->packet_len - s->index; |
1553 |
if (l > size)
|
1554 |
l = size; |
1555 |
if (s->index + l <= sizeof(s->buf)) { |
1556 |
memcpy(s->buf + s->index, buf, l); |
1557 |
} else {
|
1558 |
fprintf(stderr, "serious error: oversized packet received,"
|
1559 |
"connection terminated.\n");
|
1560 |
s->state = 0;
|
1561 |
goto eoc;
|
1562 |
} |
1563 |
|
1564 |
s->index += l; |
1565 |
buf += l; |
1566 |
size -= l; |
1567 |
if (s->index >= s->packet_len) {
|
1568 |
qemu_send_packet(s->vc, s->buf, s->packet_len); |
1569 |
s->index = 0;
|
1570 |
s->state = 0;
|
1571 |
} |
1572 |
break;
|
1573 |
} |
1574 |
} |
1575 |
} |
1576 |
|
1577 |
static void net_socket_send_dgram(void *opaque) |
1578 |
{ |
1579 |
NetSocketState *s = opaque; |
1580 |
int size;
|
1581 |
|
1582 |
size = recv(s->fd, s->buf, sizeof(s->buf), 0); |
1583 |
if (size < 0) |
1584 |
return;
|
1585 |
if (size == 0) { |
1586 |
/* end of connection */
|
1587 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1588 |
return;
|
1589 |
} |
1590 |
qemu_send_packet(s->vc, s->buf, size); |
1591 |
} |
1592 |
|
1593 |
static int net_socket_mcast_create(struct sockaddr_in *mcastaddr) |
1594 |
{ |
1595 |
struct ip_mreq imr;
|
1596 |
int fd;
|
1597 |
int val, ret;
|
1598 |
if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
|
1599 |
fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
|
1600 |
inet_ntoa(mcastaddr->sin_addr), |
1601 |
(int)ntohl(mcastaddr->sin_addr.s_addr));
|
1602 |
return -1; |
1603 |
|
1604 |
} |
1605 |
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
1606 |
if (fd < 0) { |
1607 |
perror("socket(PF_INET, SOCK_DGRAM)");
|
1608 |
return -1; |
1609 |
} |
1610 |
|
1611 |
val = 1;
|
1612 |
ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, |
1613 |
(const char *)&val, sizeof(val)); |
1614 |
if (ret < 0) { |
1615 |
perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
|
1616 |
goto fail;
|
1617 |
} |
1618 |
|
1619 |
ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); |
1620 |
if (ret < 0) { |
1621 |
perror("bind");
|
1622 |
goto fail;
|
1623 |
} |
1624 |
|
1625 |
/* Add host to multicast group */
|
1626 |
imr.imr_multiaddr = mcastaddr->sin_addr; |
1627 |
imr.imr_interface.s_addr = htonl(INADDR_ANY); |
1628 |
|
1629 |
ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, |
1630 |
(const char *)&imr, sizeof(struct ip_mreq)); |
1631 |
if (ret < 0) { |
1632 |
perror("setsockopt(IP_ADD_MEMBERSHIP)");
|
1633 |
goto fail;
|
1634 |
} |
1635 |
|
1636 |
/* Force mcast msgs to loopback (eg. several QEMUs in same host */
|
1637 |
val = 1;
|
1638 |
ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, |
1639 |
(const char *)&val, sizeof(val)); |
1640 |
if (ret < 0) { |
1641 |
perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
|
1642 |
goto fail;
|
1643 |
} |
1644 |
|
1645 |
socket_set_nonblock(fd); |
1646 |
return fd;
|
1647 |
fail:
|
1648 |
if (fd >= 0) |
1649 |
closesocket(fd); |
1650 |
return -1; |
1651 |
} |
1652 |
|
1653 |
static void net_socket_cleanup(VLANClientState *vc) |
1654 |
{ |
1655 |
NetSocketState *s = vc->opaque; |
1656 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
1657 |
close(s->fd); |
1658 |
qemu_free(s); |
1659 |
} |
1660 |
|
1661 |
static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
|
1662 |
const char *model, |
1663 |
const char *name, |
1664 |
int fd, int is_connected) |
1665 |
{ |
1666 |
struct sockaddr_in saddr;
|
1667 |
int newfd;
|
1668 |
socklen_t saddr_len; |
1669 |
NetSocketState *s; |
1670 |
|
1671 |
/* fd passed: multicast: "learn" dgram_dst address from bound address and save it
|
1672 |
* Because this may be "shared" socket from a "master" process, datagrams would be recv()
|
1673 |
* by ONLY ONE process: we must "clone" this dgram socket --jjo
|
1674 |
*/
|
1675 |
|
1676 |
if (is_connected) {
|
1677 |
if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) { |
1678 |
/* must be bound */
|
1679 |
if (saddr.sin_addr.s_addr==0) { |
1680 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
|
1681 |
fd); |
1682 |
return NULL; |
1683 |
} |
1684 |
/* clone dgram socket */
|
1685 |
newfd = net_socket_mcast_create(&saddr); |
1686 |
if (newfd < 0) { |
1687 |
/* error already reported by net_socket_mcast_create() */
|
1688 |
close(fd); |
1689 |
return NULL; |
1690 |
} |
1691 |
/* clone newfd to fd, close newfd */
|
1692 |
dup2(newfd, fd); |
1693 |
close(newfd); |
1694 |
|
1695 |
} else {
|
1696 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
|
1697 |
fd, strerror(errno)); |
1698 |
return NULL; |
1699 |
} |
1700 |
} |
1701 |
|
1702 |
s = qemu_mallocz(sizeof(NetSocketState));
|
1703 |
s->fd = fd; |
1704 |
|
1705 |
s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram,
|
1706 |
NULL, net_socket_cleanup, s);
|
1707 |
qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
|
1708 |
|
1709 |
/* mcast: save bound address as dst */
|
1710 |
if (is_connected) s->dgram_dst=saddr;
|
1711 |
|
1712 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1713 |
"socket: fd=%d (%s mcast=%s:%d)",
|
1714 |
fd, is_connected? "cloned" : "", |
1715 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1716 |
return s;
|
1717 |
} |
1718 |
|
1719 |
static void net_socket_connect(void *opaque) |
1720 |
{ |
1721 |
NetSocketState *s = opaque; |
1722 |
qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
|
1723 |
} |
1724 |
|
1725 |
static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
|
1726 |
const char *model, |
1727 |
const char *name, |
1728 |
int fd, int is_connected) |
1729 |
{ |
1730 |
NetSocketState *s; |
1731 |
s = qemu_mallocz(sizeof(NetSocketState));
|
1732 |
s->fd = fd; |
1733 |
s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive,
|
1734 |
NULL, net_socket_cleanup, s);
|
1735 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1736 |
"socket: fd=%d", fd);
|
1737 |
if (is_connected) {
|
1738 |
net_socket_connect(s); |
1739 |
} else {
|
1740 |
qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
|
1741 |
} |
1742 |
return s;
|
1743 |
} |
1744 |
|
1745 |
static NetSocketState *net_socket_fd_init(VLANState *vlan,
|
1746 |
const char *model, const char *name, |
1747 |
int fd, int is_connected) |
1748 |
{ |
1749 |
int so_type=-1, optlen=sizeof(so_type); |
1750 |
|
1751 |
if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, |
1752 |
(socklen_t *)&optlen)< 0) {
|
1753 |
fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
|
1754 |
return NULL; |
1755 |
} |
1756 |
switch(so_type) {
|
1757 |
case SOCK_DGRAM:
|
1758 |
return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
|
1759 |
case SOCK_STREAM:
|
1760 |
return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
|
1761 |
default:
|
1762 |
/* who knows ... this could be a eg. a pty, do warn and continue as stream */
|
1763 |
fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
|
1764 |
return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
|
1765 |
} |
1766 |
return NULL; |
1767 |
} |
1768 |
|
1769 |
static void net_socket_accept(void *opaque) |
1770 |
{ |
1771 |
NetSocketListenState *s = opaque; |
1772 |
NetSocketState *s1; |
1773 |
struct sockaddr_in saddr;
|
1774 |
socklen_t len; |
1775 |
int fd;
|
1776 |
|
1777 |
for(;;) {
|
1778 |
len = sizeof(saddr);
|
1779 |
fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
|
1780 |
if (fd < 0 && errno != EINTR) { |
1781 |
return;
|
1782 |
} else if (fd >= 0) { |
1783 |
break;
|
1784 |
} |
1785 |
} |
1786 |
s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
|
1787 |
if (!s1) {
|
1788 |
closesocket(fd); |
1789 |
} else {
|
1790 |
snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
|
1791 |
"socket: connection from %s:%d",
|
1792 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1793 |
} |
1794 |
} |
1795 |
|
1796 |
static int net_socket_listen_init(VLANState *vlan, |
1797 |
const char *model, |
1798 |
const char *name, |
1799 |
const char *host_str) |
1800 |
{ |
1801 |
NetSocketListenState *s; |
1802 |
int fd, val, ret;
|
1803 |
struct sockaddr_in saddr;
|
1804 |
|
1805 |
if (parse_host_port(&saddr, host_str) < 0) |
1806 |
return -1; |
1807 |
|
1808 |
s = qemu_mallocz(sizeof(NetSocketListenState));
|
1809 |
|
1810 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
1811 |
if (fd < 0) { |
1812 |
perror("socket");
|
1813 |
return -1; |
1814 |
} |
1815 |
socket_set_nonblock(fd); |
1816 |
|
1817 |
/* allow fast reuse */
|
1818 |
val = 1;
|
1819 |
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val)); |
1820 |
|
1821 |
ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
1822 |
if (ret < 0) { |
1823 |
perror("bind");
|
1824 |
return -1; |
1825 |
} |
1826 |
ret = listen(fd, 0);
|
1827 |
if (ret < 0) { |
1828 |
perror("listen");
|
1829 |
return -1; |
1830 |
} |
1831 |
s->vlan = vlan; |
1832 |
s->model = strdup(model); |
1833 |
s->name = name ? strdup(name) : NULL;
|
1834 |
s->fd = fd; |
1835 |
qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
|
1836 |
return 0; |
1837 |
} |
1838 |
|
1839 |
static int net_socket_connect_init(VLANState *vlan, |
1840 |
const char *model, |
1841 |
const char *name, |
1842 |
const char *host_str) |
1843 |
{ |
1844 |
NetSocketState *s; |
1845 |
int fd, connected, ret, err;
|
1846 |
struct sockaddr_in saddr;
|
1847 |
|
1848 |
if (parse_host_port(&saddr, host_str) < 0) |
1849 |
return -1; |
1850 |
|
1851 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
1852 |
if (fd < 0) { |
1853 |
perror("socket");
|
1854 |
return -1; |
1855 |
} |
1856 |
socket_set_nonblock(fd); |
1857 |
|
1858 |
connected = 0;
|
1859 |
for(;;) {
|
1860 |
ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
1861 |
if (ret < 0) { |
1862 |
err = socket_error(); |
1863 |
if (err == EINTR || err == EWOULDBLOCK) {
|
1864 |
} else if (err == EINPROGRESS) { |
1865 |
break;
|
1866 |
#ifdef _WIN32
|
1867 |
} else if (err == WSAEALREADY) { |
1868 |
break;
|
1869 |
#endif
|
1870 |
} else {
|
1871 |
perror("connect");
|
1872 |
closesocket(fd); |
1873 |
return -1; |
1874 |
} |
1875 |
} else {
|
1876 |
connected = 1;
|
1877 |
break;
|
1878 |
} |
1879 |
} |
1880 |
s = net_socket_fd_init(vlan, model, name, fd, connected); |
1881 |
if (!s)
|
1882 |
return -1; |
1883 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1884 |
"socket: connect to %s:%d",
|
1885 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1886 |
return 0; |
1887 |
} |
1888 |
|
1889 |
static int net_socket_mcast_init(VLANState *vlan, |
1890 |
const char *model, |
1891 |
const char *name, |
1892 |
const char *host_str) |
1893 |
{ |
1894 |
NetSocketState *s; |
1895 |
int fd;
|
1896 |
struct sockaddr_in saddr;
|
1897 |
|
1898 |
if (parse_host_port(&saddr, host_str) < 0) |
1899 |
return -1; |
1900 |
|
1901 |
|
1902 |
fd = net_socket_mcast_create(&saddr); |
1903 |
if (fd < 0) |
1904 |
return -1; |
1905 |
|
1906 |
s = net_socket_fd_init(vlan, model, name, fd, 0);
|
1907 |
if (!s)
|
1908 |
return -1; |
1909 |
|
1910 |
s->dgram_dst = saddr; |
1911 |
|
1912 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
1913 |
"socket: mcast=%s:%d",
|
1914 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
1915 |
return 0; |
1916 |
|
1917 |
} |
1918 |
|
1919 |
typedef struct DumpState { |
1920 |
VLANClientState *pcap_vc; |
1921 |
int fd;
|
1922 |
int pcap_caplen;
|
1923 |
} DumpState; |
1924 |
|
1925 |
#define PCAP_MAGIC 0xa1b2c3d4 |
1926 |
|
1927 |
struct pcap_file_hdr {
|
1928 |
uint32_t magic; |
1929 |
uint16_t version_major; |
1930 |
uint16_t version_minor; |
1931 |
int32_t thiszone; |
1932 |
uint32_t sigfigs; |
1933 |
uint32_t snaplen; |
1934 |
uint32_t linktype; |
1935 |
}; |
1936 |
|
1937 |
struct pcap_sf_pkthdr {
|
1938 |
struct {
|
1939 |
int32_t tv_sec; |
1940 |
int32_t tv_usec; |
1941 |
} ts; |
1942 |
uint32_t caplen; |
1943 |
uint32_t len; |
1944 |
}; |
1945 |
|
1946 |
static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
1947 |
{ |
1948 |
DumpState *s = vc->opaque; |
1949 |
struct pcap_sf_pkthdr hdr;
|
1950 |
int64_t ts; |
1951 |
int caplen;
|
1952 |
|
1953 |
/* Early return in case of previous error. */
|
1954 |
if (s->fd < 0) { |
1955 |
return size;
|
1956 |
} |
1957 |
|
1958 |
ts = muldiv64(qemu_get_clock(vm_clock), 1000000, ticks_per_sec);
|
1959 |
caplen = size > s->pcap_caplen ? s->pcap_caplen : size; |
1960 |
|
1961 |
hdr.ts.tv_sec = ts / 1000000;
|
1962 |
hdr.ts.tv_usec = ts % 1000000;
|
1963 |
hdr.caplen = caplen; |
1964 |
hdr.len = size; |
1965 |
if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) || |
1966 |
write(s->fd, buf, caplen) != caplen) { |
1967 |
qemu_log("-net dump write error - stop dump\n");
|
1968 |
close(s->fd); |
1969 |
s->fd = -1;
|
1970 |
} |
1971 |
|
1972 |
return size;
|
1973 |
} |
1974 |
|
1975 |
static void net_dump_cleanup(VLANClientState *vc) |
1976 |
{ |
1977 |
DumpState *s = vc->opaque; |
1978 |
|
1979 |
close(s->fd); |
1980 |
qemu_free(s); |
1981 |
} |
1982 |
|
1983 |
static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device, |
1984 |
const char *name, const char *filename, int len) |
1985 |
{ |
1986 |
struct pcap_file_hdr hdr;
|
1987 |
DumpState *s; |
1988 |
|
1989 |
s = qemu_malloc(sizeof(DumpState));
|
1990 |
|
1991 |
s->fd = open(filename, O_CREAT | O_WRONLY, 0644);
|
1992 |
if (s->fd < 0) { |
1993 |
config_error(mon, "-net dump: can't open %s\n", filename);
|
1994 |
return -1; |
1995 |
} |
1996 |
|
1997 |
s->pcap_caplen = len; |
1998 |
|
1999 |
hdr.magic = PCAP_MAGIC; |
2000 |
hdr.version_major = 2;
|
2001 |
hdr.version_minor = 4;
|
2002 |
hdr.thiszone = 0;
|
2003 |
hdr.sigfigs = 0;
|
2004 |
hdr.snaplen = s->pcap_caplen; |
2005 |
hdr.linktype = 1;
|
2006 |
|
2007 |
if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) { |
2008 |
config_error(mon, "-net dump write error: %s\n", strerror(errno));
|
2009 |
close(s->fd); |
2010 |
qemu_free(s); |
2011 |
return -1; |
2012 |
} |
2013 |
|
2014 |
s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL, |
2015 |
net_dump_cleanup, s); |
2016 |
snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
|
2017 |
"dump to %s (len=%d)", filename, len);
|
2018 |
return 0; |
2019 |
} |
2020 |
|
2021 |
/* find or alloc a new VLAN */
|
2022 |
VLANState *qemu_find_vlan(int id)
|
2023 |
{ |
2024 |
VLANState **pvlan, *vlan; |
2025 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
2026 |
if (vlan->id == id)
|
2027 |
return vlan;
|
2028 |
} |
2029 |
vlan = qemu_mallocz(sizeof(VLANState));
|
2030 |
vlan->id = id; |
2031 |
vlan->next = NULL;
|
2032 |
pvlan = &first_vlan; |
2033 |
while (*pvlan != NULL) |
2034 |
pvlan = &(*pvlan)->next; |
2035 |
*pvlan = vlan; |
2036 |
return vlan;
|
2037 |
} |
2038 |
|
2039 |
static int nic_get_free_idx(void) |
2040 |
{ |
2041 |
int index;
|
2042 |
|
2043 |
for (index = 0; index < MAX_NICS; index++) |
2044 |
if (!nd_table[index].used)
|
2045 |
return index;
|
2046 |
return -1; |
2047 |
} |
2048 |
|
2049 |
void qemu_check_nic_model(NICInfo *nd, const char *model) |
2050 |
{ |
2051 |
const char *models[2]; |
2052 |
|
2053 |
models[0] = model;
|
2054 |
models[1] = NULL; |
2055 |
|
2056 |
qemu_check_nic_model_list(nd, models, model); |
2057 |
} |
2058 |
|
2059 |
void qemu_check_nic_model_list(NICInfo *nd, const char * const *models, |
2060 |
const char *default_model) |
2061 |
{ |
2062 |
int i, exit_status = 0; |
2063 |
|
2064 |
if (!nd->model)
|
2065 |
nd->model = strdup(default_model); |
2066 |
|
2067 |
if (strcmp(nd->model, "?") != 0) { |
2068 |
for (i = 0 ; models[i]; i++) |
2069 |
if (strcmp(nd->model, models[i]) == 0) |
2070 |
return;
|
2071 |
|
2072 |
fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
|
2073 |
exit_status = 1;
|
2074 |
} |
2075 |
|
2076 |
fprintf(stderr, "qemu: Supported NIC models: ");
|
2077 |
for (i = 0 ; models[i]; i++) |
2078 |
fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); |
2079 |
|
2080 |
exit(exit_status); |
2081 |
} |
2082 |
|
2083 |
int net_client_init(Monitor *mon, const char *device, const char *p) |
2084 |
{ |
2085 |
static const char * const fd_params[] = { |
2086 |
"vlan", "name", "fd", NULL |
2087 |
}; |
2088 |
char buf[1024]; |
2089 |
int vlan_id, ret;
|
2090 |
VLANState *vlan; |
2091 |
char *name = NULL; |
2092 |
|
2093 |
vlan_id = 0;
|
2094 |
if (get_param_value(buf, sizeof(buf), "vlan", p)) { |
2095 |
vlan_id = strtol(buf, NULL, 0); |
2096 |
} |
2097 |
vlan = qemu_find_vlan(vlan_id); |
2098 |
|
2099 |
if (get_param_value(buf, sizeof(buf), "name", p)) { |
2100 |
name = qemu_strdup(buf); |
2101 |
} |
2102 |
if (!strcmp(device, "nic")) { |
2103 |
static const char * const nic_params[] = { |
2104 |
"vlan", "name", "macaddr", "model", NULL |
2105 |
}; |
2106 |
NICInfo *nd; |
2107 |
uint8_t *macaddr; |
2108 |
int idx = nic_get_free_idx();
|
2109 |
|
2110 |
if (check_params(buf, sizeof(buf), nic_params, p) < 0) { |
2111 |
config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
|
2112 |
ret = -1;
|
2113 |
goto out;
|
2114 |
} |
2115 |
if (idx == -1 || nb_nics >= MAX_NICS) { |
2116 |
config_error(mon, "Too Many NICs\n");
|
2117 |
ret = -1;
|
2118 |
goto out;
|
2119 |
} |
2120 |
nd = &nd_table[idx]; |
2121 |
macaddr = nd->macaddr; |
2122 |
macaddr[0] = 0x52; |
2123 |
macaddr[1] = 0x54; |
2124 |
macaddr[2] = 0x00; |
2125 |
macaddr[3] = 0x12; |
2126 |
macaddr[4] = 0x34; |
2127 |
macaddr[5] = 0x56 + idx; |
2128 |
|
2129 |
if (get_param_value(buf, sizeof(buf), "macaddr", p)) { |
2130 |
if (parse_macaddr(macaddr, buf) < 0) { |
2131 |
config_error(mon, "invalid syntax for ethernet address\n");
|
2132 |
ret = -1;
|
2133 |
goto out;
|
2134 |
} |
2135 |
} |
2136 |
if (get_param_value(buf, sizeof(buf), "model", p)) { |
2137 |
nd->model = strdup(buf); |
2138 |
} |
2139 |
nd->vlan = vlan; |
2140 |
nd->name = name; |
2141 |
nd->used = 1;
|
2142 |
name = NULL;
|
2143 |
nb_nics++; |
2144 |
vlan->nb_guest_devs++; |
2145 |
ret = idx; |
2146 |
} else
|
2147 |
if (!strcmp(device, "none")) { |
2148 |
if (*p != '\0') { |
2149 |
config_error(mon, "'none' takes no parameters\n");
|
2150 |
ret = -1;
|
2151 |
goto out;
|
2152 |
} |
2153 |
/* does nothing. It is needed to signal that no network cards
|
2154 |
are wanted */
|
2155 |
ret = 0;
|
2156 |
} else
|
2157 |
#ifdef CONFIG_SLIRP
|
2158 |
if (!strcmp(device, "user")) { |
2159 |
static const char * const slirp_params[] = { |
2160 |
"vlan", "name", "hostname", "restrict", "ip", NULL |
2161 |
}; |
2162 |
int restricted = 0; |
2163 |
char *ip = NULL; |
2164 |
|
2165 |
if (check_params(buf, sizeof(buf), slirp_params, p) < 0) { |
2166 |
config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
|
2167 |
ret = -1;
|
2168 |
goto out;
|
2169 |
} |
2170 |
if (get_param_value(buf, sizeof(buf), "hostname", p)) { |
2171 |
pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
|
2172 |
} |
2173 |
if (get_param_value(buf, sizeof(buf), "restrict", p)) { |
2174 |
restricted = (buf[0] == 'y') ? 1 : 0; |
2175 |
} |
2176 |
if (get_param_value(buf, sizeof(buf), "ip", p)) { |
2177 |
ip = qemu_strdup(buf); |
2178 |
} |
2179 |
vlan->nb_host_devs++; |
2180 |
ret = net_slirp_init(vlan, device, name, restricted, ip); |
2181 |
qemu_free(ip); |
2182 |
} else if (!strcmp(device, "channel")) { |
2183 |
long port;
|
2184 |
char name[20], *devname; |
2185 |
struct VMChannel *vmc;
|
2186 |
|
2187 |
port = strtol(p, &devname, 10);
|
2188 |
devname++; |
2189 |
if (port < 1 || port > 65535) { |
2190 |
config_error(mon, "vmchannel wrong port number\n");
|
2191 |
ret = -1;
|
2192 |
goto out;
|
2193 |
} |
2194 |
vmc = malloc(sizeof(struct VMChannel)); |
2195 |
snprintf(name, 20, "vmchannel%ld", port); |
2196 |
vmc->hd = qemu_chr_open(name, devname, NULL);
|
2197 |
if (!vmc->hd) {
|
2198 |
config_error(mon, "could not open vmchannel device '%s'\n",
|
2199 |
devname); |
2200 |
ret = -1;
|
2201 |
goto out;
|
2202 |
} |
2203 |
vmc->port = port; |
2204 |
slirp_add_exec(3, vmc->hd, 4, port); |
2205 |
qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read, |
2206 |
NULL, vmc);
|
2207 |
ret = 0;
|
2208 |
} else
|
2209 |
#endif
|
2210 |
#ifdef _WIN32
|
2211 |
if (!strcmp(device, "tap")) { |
2212 |
static const char * const tap_params[] = { |
2213 |
"vlan", "name", "ifname", NULL |
2214 |
}; |
2215 |
char ifname[64]; |
2216 |
|
2217 |
if (check_params(buf, sizeof(buf), tap_params, p) < 0) { |
2218 |
config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
|
2219 |
ret = -1;
|
2220 |
goto out;
|
2221 |
} |
2222 |
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
2223 |
config_error(mon, "tap: no interface name\n");
|
2224 |
ret = -1;
|
2225 |
goto out;
|
2226 |
} |
2227 |
vlan->nb_host_devs++; |
2228 |
ret = tap_win32_init(vlan, device, name, ifname); |
2229 |
} else
|
2230 |
#elif defined (_AIX)
|
2231 |
#else
|
2232 |
if (!strcmp(device, "tap")) { |
2233 |
char ifname[64], chkbuf[64]; |
2234 |
char setup_script[1024], down_script[1024]; |
2235 |
int fd;
|
2236 |
vlan->nb_host_devs++; |
2237 |
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
2238 |
if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { |
2239 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2240 |
ret = -1;
|
2241 |
goto out;
|
2242 |
} |
2243 |
fd = strtol(buf, NULL, 0); |
2244 |
fcntl(fd, F_SETFL, O_NONBLOCK); |
2245 |
net_tap_fd_init(vlan, device, name, fd); |
2246 |
ret = 0;
|
2247 |
} else {
|
2248 |
static const char * const tap_params[] = { |
2249 |
"vlan", "name", "ifname", "script", "downscript", NULL |
2250 |
}; |
2251 |
if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) { |
2252 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2253 |
ret = -1;
|
2254 |
goto out;
|
2255 |
} |
2256 |
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
2257 |
ifname[0] = '\0'; |
2258 |
} |
2259 |
if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) { |
2260 |
pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
|
2261 |
} |
2262 |
if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) { |
2263 |
pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
|
2264 |
} |
2265 |
ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script); |
2266 |
} |
2267 |
} else
|
2268 |
#endif
|
2269 |
if (!strcmp(device, "socket")) { |
2270 |
char chkbuf[64]; |
2271 |
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
2272 |
int fd;
|
2273 |
if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { |
2274 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2275 |
ret = -1;
|
2276 |
goto out;
|
2277 |
} |
2278 |
fd = strtol(buf, NULL, 0); |
2279 |
ret = -1;
|
2280 |
if (net_socket_fd_init(vlan, device, name, fd, 1)) |
2281 |
ret = 0;
|
2282 |
} else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) { |
2283 |
static const char * const listen_params[] = { |
2284 |
"vlan", "name", "listen", NULL |
2285 |
}; |
2286 |
if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) { |
2287 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2288 |
ret = -1;
|
2289 |
goto out;
|
2290 |
} |
2291 |
ret = net_socket_listen_init(vlan, device, name, buf); |
2292 |
} else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) { |
2293 |
static const char * const connect_params[] = { |
2294 |
"vlan", "name", "connect", NULL |
2295 |
}; |
2296 |
if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) { |
2297 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2298 |
ret = -1;
|
2299 |
goto out;
|
2300 |
} |
2301 |
ret = net_socket_connect_init(vlan, device, name, buf); |
2302 |
} else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) { |
2303 |
static const char * const mcast_params[] = { |
2304 |
"vlan", "name", "mcast", NULL |
2305 |
}; |
2306 |
if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) { |
2307 |
config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
|
2308 |
ret = -1;
|
2309 |
goto out;
|
2310 |
} |
2311 |
ret = net_socket_mcast_init(vlan, device, name, buf); |
2312 |
} else {
|
2313 |
config_error(mon, "Unknown socket options: %s\n", p);
|
2314 |
ret = -1;
|
2315 |
goto out;
|
2316 |
} |
2317 |
vlan->nb_host_devs++; |
2318 |
} else
|
2319 |
#ifdef CONFIG_VDE
|
2320 |
if (!strcmp(device, "vde")) { |
2321 |
static const char * const vde_params[] = { |
2322 |
"vlan", "name", "sock", "port", "group", "mode", NULL |
2323 |
}; |
2324 |
char vde_sock[1024], vde_group[512]; |
2325 |
int vde_port, vde_mode;
|
2326 |
|
2327 |
if (check_params(buf, sizeof(buf), vde_params, p) < 0) { |
2328 |
config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
|
2329 |
ret = -1;
|
2330 |
goto out;
|
2331 |
} |
2332 |
vlan->nb_host_devs++; |
2333 |
if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) { |
2334 |
vde_sock[0] = '\0'; |
2335 |
} |
2336 |
if (get_param_value(buf, sizeof(buf), "port", p) > 0) { |
2337 |
vde_port = strtol(buf, NULL, 10); |
2338 |
} else {
|
2339 |
vde_port = 0;
|
2340 |
} |
2341 |
if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) { |
2342 |
vde_group[0] = '\0'; |
2343 |
} |
2344 |
if (get_param_value(buf, sizeof(buf), "mode", p) > 0) { |
2345 |
vde_mode = strtol(buf, NULL, 8); |
2346 |
} else {
|
2347 |
vde_mode = 0700;
|
2348 |
} |
2349 |
ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode); |
2350 |
} else
|
2351 |
#endif
|
2352 |
if (!strcmp(device, "dump")) { |
2353 |
int len = 65536; |
2354 |
|
2355 |
if (get_param_value(buf, sizeof(buf), "len", p) > 0) { |
2356 |
len = strtol(buf, NULL, 0); |
2357 |
} |
2358 |
if (!get_param_value(buf, sizeof(buf), "file", p)) { |
2359 |
snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id); |
2360 |
} |
2361 |
ret = net_dump_init(mon, vlan, device, name, buf, len); |
2362 |
} else {
|
2363 |
config_error(mon, "Unknown network device: %s\n", device);
|
2364 |
ret = -1;
|
2365 |
goto out;
|
2366 |
} |
2367 |
if (ret < 0) { |
2368 |
config_error(mon, "Could not initialize device '%s'\n", device);
|
2369 |
} |
2370 |
out:
|
2371 |
qemu_free(name); |
2372 |
return ret;
|
2373 |
} |
2374 |
|
2375 |
void net_client_uninit(NICInfo *nd)
|
2376 |
{ |
2377 |
nd->vlan->nb_guest_devs--; |
2378 |
nb_nics--; |
2379 |
nd->used = 0;
|
2380 |
free((void *)nd->model);
|
2381 |
} |
2382 |
|
2383 |
static int net_host_check_device(const char *device) |
2384 |
{ |
2385 |
int i;
|
2386 |
const char *valid_param_list[] = { "tap", "socket", "dump" |
2387 |
#ifdef CONFIG_SLIRP
|
2388 |
,"user"
|
2389 |
#endif
|
2390 |
#ifdef CONFIG_VDE
|
2391 |
,"vde"
|
2392 |
#endif
|
2393 |
}; |
2394 |
for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { |
2395 |
if (!strncmp(valid_param_list[i], device,
|
2396 |
strlen(valid_param_list[i]))) |
2397 |
return 1; |
2398 |
} |
2399 |
|
2400 |
return 0; |
2401 |
} |
2402 |
|
2403 |
void net_host_device_add(Monitor *mon, const char *device, const char *opts) |
2404 |
{ |
2405 |
if (!net_host_check_device(device)) {
|
2406 |
monitor_printf(mon, "invalid host network device %s\n", device);
|
2407 |
return;
|
2408 |
} |
2409 |
if (net_client_init(mon, device, opts ? opts : "") < 0) { |
2410 |
monitor_printf(mon, "adding host network device %s failed\n", device);
|
2411 |
} |
2412 |
} |
2413 |
|
2414 |
void net_host_device_remove(Monitor *mon, int vlan_id, const char *device) |
2415 |
{ |
2416 |
VLANState *vlan; |
2417 |
VLANClientState *vc; |
2418 |
|
2419 |
vlan = qemu_find_vlan(vlan_id); |
2420 |
|
2421 |
for (vc = vlan->first_client; vc != NULL; vc = vc->next) { |
2422 |
if (!strcmp(vc->name, device)) {
|
2423 |
break;
|
2424 |
} |
2425 |
} |
2426 |
|
2427 |
if (!vc) {
|
2428 |
monitor_printf(mon, "can't find device %s\n", device);
|
2429 |
return;
|
2430 |
} |
2431 |
if (!net_host_check_device(vc->model)) {
|
2432 |
monitor_printf(mon, "invalid host network device %s\n", device);
|
2433 |
return;
|
2434 |
} |
2435 |
qemu_del_vlan_client(vc); |
2436 |
} |
2437 |
|
2438 |
int net_client_parse(const char *str) |
2439 |
{ |
2440 |
const char *p; |
2441 |
char *q;
|
2442 |
char device[64]; |
2443 |
|
2444 |
p = str; |
2445 |
q = device; |
2446 |
while (*p != '\0' && *p != ',') { |
2447 |
if ((q - device) < sizeof(device) - 1) |
2448 |
*q++ = *p; |
2449 |
p++; |
2450 |
} |
2451 |
*q = '\0';
|
2452 |
if (*p == ',') |
2453 |
p++; |
2454 |
|
2455 |
return net_client_init(NULL, device, p); |
2456 |
} |
2457 |
|
2458 |
void do_info_network(Monitor *mon)
|
2459 |
{ |
2460 |
VLANState *vlan; |
2461 |
VLANClientState *vc; |
2462 |
|
2463 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
2464 |
monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
|
2465 |
for(vc = vlan->first_client; vc != NULL; vc = vc->next) |
2466 |
monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
|
2467 |
} |
2468 |
} |
2469 |
|
2470 |
int do_set_link(Monitor *mon, const char *name, const char *up_or_down) |
2471 |
{ |
2472 |
VLANState *vlan; |
2473 |
VLANClientState *vc = NULL;
|
2474 |
|
2475 |
for (vlan = first_vlan; vlan != NULL; vlan = vlan->next) |
2476 |
for (vc = vlan->first_client; vc != NULL; vc = vc->next) |
2477 |
if (strcmp(vc->name, name) == 0) |
2478 |
goto done;
|
2479 |
done:
|
2480 |
|
2481 |
if (!vc) {
|
2482 |
monitor_printf(mon, "could not find network device '%s'", name);
|
2483 |
return 0; |
2484 |
} |
2485 |
|
2486 |
if (strcmp(up_or_down, "up") == 0) |
2487 |
vc->link_down = 0;
|
2488 |
else if (strcmp(up_or_down, "down") == 0) |
2489 |
vc->link_down = 1;
|
2490 |
else
|
2491 |
monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
|
2492 |
"valid\n", up_or_down);
|
2493 |
|
2494 |
if (vc->link_status_changed)
|
2495 |
vc->link_status_changed(vc); |
2496 |
|
2497 |
return 1; |
2498 |
} |
2499 |
|
2500 |
void net_cleanup(void) |
2501 |
{ |
2502 |
VLANState *vlan; |
2503 |
|
2504 |
/* close network clients */
|
2505 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
2506 |
VLANClientState *vc = vlan->first_client; |
2507 |
|
2508 |
while (vc) {
|
2509 |
VLANClientState *next = vc->next; |
2510 |
|
2511 |
qemu_del_vlan_client(vc); |
2512 |
|
2513 |
vc = next; |
2514 |
} |
2515 |
} |
2516 |
} |
2517 |
|
2518 |
void net_client_check(void) |
2519 |
{ |
2520 |
VLANState *vlan; |
2521 |
|
2522 |
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
2523 |
if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0) |
2524 |
continue;
|
2525 |
if (vlan->nb_guest_devs == 0) |
2526 |
fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
|
2527 |
if (vlan->nb_host_devs == 0) |
2528 |
fprintf(stderr, |
2529 |
"Warning: vlan %d is not connected to host network\n",
|
2530 |
vlan->id); |
2531 |
} |
2532 |
} |