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| 1 |
/*
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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
|
| 8 |
* 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 |
|
| 32 |
/* Needed early for CONFIG_BSD etc. */
|
| 33 |
#include "config-host.h" |
| 34 |
|
| 35 |
#ifndef _WIN32
|
| 36 |
#include <sys/times.h> |
| 37 |
#include <sys/wait.h> |
| 38 |
#include <termios.h> |
| 39 |
#include <sys/mman.h> |
| 40 |
#include <sys/ioctl.h> |
| 41 |
#include <sys/resource.h> |
| 42 |
#include <sys/socket.h> |
| 43 |
#include <net/if.h> |
| 44 |
#include <dirent.h> |
| 45 |
#include <netdb.h> |
| 46 |
#include <sys/select.h> |
| 47 |
#ifdef CONFIG_BSD
|
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#include <sys/stat.h> |
| 49 |
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
|
| 50 |
#include <libutil.h> |
| 51 |
#else
|
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#include <util.h> |
| 53 |
#endif
|
| 54 |
#ifdef __linux__
|
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#include <pty.h> |
| 56 |
#include <malloc.h> |
| 57 |
#include <linux/rtc.h> |
| 58 |
|
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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" |
| 63 |
|
| 64 |
#include <linux/ppdev.h> |
| 65 |
#include <linux/parport.h> |
| 66 |
#endif
|
| 67 |
#ifdef __sun__
|
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#include <sys/stat.h> |
| 69 |
#include <sys/ethernet.h> |
| 70 |
#include <sys/sockio.h> |
| 71 |
#include <netinet/arp.h> |
| 72 |
#include <netinet/in.h> |
| 73 |
#include <netinet/in_systm.h> |
| 74 |
#include <netinet/ip.h> |
| 75 |
#include <netinet/ip_icmp.h> // must come after ip.h |
| 76 |
#include <netinet/udp.h> |
| 77 |
#include <netinet/tcp.h> |
| 78 |
#include <net/if.h> |
| 79 |
#include <syslog.h> |
| 80 |
#include <stropts.h> |
| 81 |
#endif
|
| 82 |
#endif
|
| 83 |
#endif
|
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|
| 85 |
#if defined(__OpenBSD__)
|
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#include <util.h> |
| 87 |
#endif
|
| 88 |
|
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#if defined(CONFIG_VDE)
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#include <libvdeplug.h> |
| 91 |
#endif
|
| 92 |
|
| 93 |
#include "qemu-common.h" |
| 94 |
#include "net.h" |
| 95 |
#include "net/tap.h" |
| 96 |
#include "net/slirp.h" |
| 97 |
#include "monitor.h" |
| 98 |
#include "sysemu.h" |
| 99 |
#include "qemu-timer.h" |
| 100 |
#include "qemu-char.h" |
| 101 |
#include "audio/audio.h" |
| 102 |
#include "qemu_socket.h" |
| 103 |
#include "qemu-log.h" |
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#include "qemu-config.h" |
| 105 |
|
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static QTAILQ_HEAD(, VLANState) vlans;
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static QTAILQ_HEAD(, VLANClientState) non_vlan_clients;
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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)
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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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} |
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fprintf(f, " ");
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for(j=0;j<len;j++) { |
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c = buf[i+j]; |
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if (c < ' ' || c > '~') |
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c = '.';
|
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fprintf(f, "%c", c);
|
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} |
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fprintf(f, "\n");
|
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} |
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} |
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#endif
|
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|
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static int parse_macaddr(uint8_t *macaddr, const char *p) |
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{
|
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int i;
|
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char *last_char;
|
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long int offset; |
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|
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errno = 0;
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offset = strtol(p, &last_char, 0);
|
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if (0 == errno && '\0' == *last_char && |
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offset >= 0 && offset <= 0xFFFFFF) { |
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macaddr[3] = (offset & 0xFF0000) >> 16; |
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macaddr[4] = (offset & 0xFF00) >> 8; |
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macaddr[5] = offset & 0xFF; |
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return 0; |
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} else {
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for(i = 0; i < 6; i++) { |
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macaddr[i] = strtol(p, (char **)&p, 16); |
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if (i == 5) { |
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if (*p != '\0') |
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return -1; |
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} else {
|
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if (*p != ':' && *p != '-') |
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return -1; |
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p++; |
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} |
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} |
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return 0; |
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} |
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|
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return -1; |
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} |
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|
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static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) |
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{
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const char *p, *p1; |
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int len;
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p = *pp; |
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p1 = strchr(p, sep); |
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if (!p1)
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return -1; |
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len = p1 - p; |
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p1++; |
| 182 |
if (buf_size > 0) { |
| 183 |
if (len > buf_size - 1) |
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len = buf_size - 1;
|
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memcpy(buf, p, len); |
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buf[len] = '\0';
|
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} |
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*pp = p1; |
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return 0; |
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} |
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|
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int parse_host_src_port(struct sockaddr_in *haddr, |
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struct sockaddr_in *saddr,
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const char *input_str) |
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{
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char *str = strdup(input_str);
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char *host_str = str;
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char *src_str;
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const char *src_str2; |
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char *ptr;
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|
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/*
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* Chop off any extra arguments at the end of the string which
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* would start with a comma, then fill in the src port information
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* if it was provided else use the "any address" and "any port".
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*/
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if ((ptr = strchr(str,','))) |
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*ptr = '\0';
|
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|
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if ((src_str = strchr(input_str,'@'))) { |
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*src_str = '\0';
|
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src_str++; |
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} |
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|
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if (parse_host_port(haddr, host_str) < 0) |
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goto fail;
|
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|
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src_str2 = src_str; |
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if (!src_str || *src_str == '\0') |
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src_str2 = ":0";
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|
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if (parse_host_port(saddr, src_str2) < 0) |
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goto fail;
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|
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free(str); |
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return(0); |
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|
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fail:
|
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free(str); |
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return -1; |
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} |
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|
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int parse_host_port(struct sockaddr_in *saddr, const char *str) |
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{
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char buf[512]; |
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struct hostent *he;
|
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const char *p, *r; |
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int port;
|
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|
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p = str; |
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if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
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return -1; |
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saddr->sin_family = AF_INET; |
| 244 |
if (buf[0] == '\0') { |
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saddr->sin_addr.s_addr = 0;
|
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} else {
|
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if (qemu_isdigit(buf[0])) { |
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if (!inet_aton(buf, &saddr->sin_addr))
|
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return -1; |
| 250 |
} else {
|
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if ((he = gethostbyname(buf)) == NULL) |
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return - 1; |
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saddr->sin_addr = *(struct in_addr *)he->h_addr;
|
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} |
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} |
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port = strtol(p, (char **)&r, 0); |
| 257 |
if (r == p)
|
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return -1; |
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saddr->sin_port = htons(port); |
| 260 |
return 0; |
| 261 |
} |
| 262 |
|
| 263 |
void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]) |
| 264 |
{
|
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snprintf(vc->info_str, sizeof(vc->info_str),
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"model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
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vc->model, |
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macaddr[0], macaddr[1], macaddr[2], |
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macaddr[3], macaddr[4], macaddr[5]); |
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} |
| 271 |
|
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void qemu_macaddr_default_if_unset(MACAddr *macaddr)
|
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{
|
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static int index = 0; |
| 275 |
static const MACAddr zero = { .a = { 0,0,0,0,0,0 } }; |
| 276 |
|
| 277 |
if (memcmp(macaddr, &zero, sizeof(zero)) != 0) |
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return;
|
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macaddr->a[0] = 0x52; |
| 280 |
macaddr->a[1] = 0x54; |
| 281 |
macaddr->a[2] = 0x00; |
| 282 |
macaddr->a[3] = 0x12; |
| 283 |
macaddr->a[4] = 0x34; |
| 284 |
macaddr->a[5] = 0x56 + index++; |
| 285 |
} |
| 286 |
|
| 287 |
static char *assign_name(VLANClientState *vc1, const char *model) |
| 288 |
{
|
| 289 |
VLANState *vlan; |
| 290 |
char buf[256]; |
| 291 |
int id = 0; |
| 292 |
|
| 293 |
QTAILQ_FOREACH(vlan, &vlans, next) {
|
| 294 |
VLANClientState *vc; |
| 295 |
|
| 296 |
QTAILQ_FOREACH(vc, &vlan->clients, next) {
|
| 297 |
if (vc != vc1 && strcmp(vc->model, model) == 0) { |
| 298 |
id++; |
| 299 |
} |
| 300 |
} |
| 301 |
} |
| 302 |
|
| 303 |
snprintf(buf, sizeof(buf), "%s.%d", model, id); |
| 304 |
|
| 305 |
return qemu_strdup(buf);
|
| 306 |
} |
| 307 |
|
| 308 |
static ssize_t qemu_deliver_packet(VLANClientState *sender,
|
| 309 |
unsigned flags,
|
| 310 |
const uint8_t *data,
|
| 311 |
size_t size, |
| 312 |
void *opaque);
|
| 313 |
static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
|
| 314 |
unsigned flags,
|
| 315 |
const struct iovec *iov, |
| 316 |
int iovcnt,
|
| 317 |
void *opaque);
|
| 318 |
|
| 319 |
VLANClientState *qemu_new_vlan_client(net_client_type type, |
| 320 |
VLANState *vlan, |
| 321 |
VLANClientState *peer, |
| 322 |
const char *model, |
| 323 |
const char *name, |
| 324 |
NetCanReceive *can_receive, |
| 325 |
NetReceive *receive, |
| 326 |
NetReceive *receive_raw, |
| 327 |
NetReceiveIOV *receive_iov, |
| 328 |
NetCleanup *cleanup, |
| 329 |
void *opaque)
|
| 330 |
{
|
| 331 |
VLANClientState *vc; |
| 332 |
|
| 333 |
vc = qemu_mallocz(sizeof(VLANClientState));
|
| 334 |
|
| 335 |
vc->type = type; |
| 336 |
vc->model = qemu_strdup(model); |
| 337 |
if (name)
|
| 338 |
vc->name = qemu_strdup(name); |
| 339 |
else
|
| 340 |
vc->name = assign_name(vc, model); |
| 341 |
vc->can_receive = can_receive; |
| 342 |
vc->receive = receive; |
| 343 |
vc->receive_raw = receive_raw; |
| 344 |
vc->receive_iov = receive_iov; |
| 345 |
vc->cleanup = cleanup; |
| 346 |
vc->opaque = opaque; |
| 347 |
|
| 348 |
if (vlan) {
|
| 349 |
assert(!peer); |
| 350 |
vc->vlan = vlan; |
| 351 |
QTAILQ_INSERT_TAIL(&vc->vlan->clients, vc, next); |
| 352 |
} else {
|
| 353 |
if (peer) {
|
| 354 |
vc->peer = peer; |
| 355 |
peer->peer = vc; |
| 356 |
} |
| 357 |
QTAILQ_INSERT_TAIL(&non_vlan_clients, vc, next); |
| 358 |
|
| 359 |
vc->send_queue = qemu_new_net_queue(qemu_deliver_packet, |
| 360 |
qemu_deliver_packet_iov, |
| 361 |
vc); |
| 362 |
} |
| 363 |
|
| 364 |
return vc;
|
| 365 |
} |
| 366 |
|
| 367 |
void qemu_del_vlan_client(VLANClientState *vc)
|
| 368 |
{
|
| 369 |
if (vc->vlan) {
|
| 370 |
QTAILQ_REMOVE(&vc->vlan->clients, vc, next); |
| 371 |
} else {
|
| 372 |
if (vc->send_queue) {
|
| 373 |
qemu_del_net_queue(vc->send_queue); |
| 374 |
} |
| 375 |
QTAILQ_REMOVE(&non_vlan_clients, vc, next); |
| 376 |
if (vc->peer) {
|
| 377 |
vc->peer->peer = NULL;
|
| 378 |
} |
| 379 |
} |
| 380 |
|
| 381 |
if (vc->cleanup) {
|
| 382 |
vc->cleanup(vc); |
| 383 |
} |
| 384 |
|
| 385 |
qemu_free(vc->name); |
| 386 |
qemu_free(vc->model); |
| 387 |
qemu_free(vc); |
| 388 |
} |
| 389 |
|
| 390 |
VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque)
|
| 391 |
{
|
| 392 |
VLANClientState *vc; |
| 393 |
|
| 394 |
QTAILQ_FOREACH(vc, &vlan->clients, next) {
|
| 395 |
if (vc->opaque == opaque) {
|
| 396 |
return vc;
|
| 397 |
} |
| 398 |
} |
| 399 |
|
| 400 |
return NULL; |
| 401 |
} |
| 402 |
|
| 403 |
VLANClientState * |
| 404 |
qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
|
| 405 |
const char *client_str) |
| 406 |
{
|
| 407 |
VLANState *vlan; |
| 408 |
VLANClientState *vc; |
| 409 |
|
| 410 |
vlan = qemu_find_vlan(vlan_id, 0);
|
| 411 |
if (!vlan) {
|
| 412 |
monitor_printf(mon, "unknown VLAN %d\n", vlan_id);
|
| 413 |
return NULL; |
| 414 |
} |
| 415 |
|
| 416 |
QTAILQ_FOREACH(vc, &vlan->clients, next) {
|
| 417 |
if (!strcmp(vc->name, client_str)) {
|
| 418 |
break;
|
| 419 |
} |
| 420 |
} |
| 421 |
if (!vc) {
|
| 422 |
monitor_printf(mon, "can't find device %s on VLAN %d\n",
|
| 423 |
client_str, vlan_id); |
| 424 |
} |
| 425 |
|
| 426 |
return vc;
|
| 427 |
} |
| 428 |
|
| 429 |
int qemu_can_send_packet(VLANClientState *sender)
|
| 430 |
{
|
| 431 |
VLANState *vlan = sender->vlan; |
| 432 |
VLANClientState *vc; |
| 433 |
|
| 434 |
if (sender->peer) {
|
| 435 |
if (sender->peer->receive_disabled) {
|
| 436 |
return 0; |
| 437 |
} else if (sender->peer->can_receive && |
| 438 |
!sender->peer->can_receive(sender->peer)) {
|
| 439 |
return 0; |
| 440 |
} else {
|
| 441 |
return 1; |
| 442 |
} |
| 443 |
} |
| 444 |
|
| 445 |
if (!sender->vlan) {
|
| 446 |
return 1; |
| 447 |
} |
| 448 |
|
| 449 |
QTAILQ_FOREACH(vc, &vlan->clients, next) {
|
| 450 |
if (vc == sender) {
|
| 451 |
continue;
|
| 452 |
} |
| 453 |
|
| 454 |
/* no can_receive() handler, they can always receive */
|
| 455 |
if (!vc->can_receive || vc->can_receive(vc)) {
|
| 456 |
return 1; |
| 457 |
} |
| 458 |
} |
| 459 |
return 0; |
| 460 |
} |
| 461 |
|
| 462 |
static ssize_t qemu_deliver_packet(VLANClientState *sender,
|
| 463 |
unsigned flags,
|
| 464 |
const uint8_t *data,
|
| 465 |
size_t size, |
| 466 |
void *opaque)
|
| 467 |
{
|
| 468 |
VLANClientState *vc = opaque; |
| 469 |
ssize_t ret; |
| 470 |
|
| 471 |
if (vc->link_down) {
|
| 472 |
return size;
|
| 473 |
} |
| 474 |
|
| 475 |
if (vc->receive_disabled) {
|
| 476 |
return 0; |
| 477 |
} |
| 478 |
|
| 479 |
if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->receive_raw) {
|
| 480 |
ret = vc->receive_raw(vc, data, size); |
| 481 |
} else {
|
| 482 |
ret = vc->receive(vc, data, size); |
| 483 |
} |
| 484 |
|
| 485 |
if (ret == 0) { |
| 486 |
vc->receive_disabled = 1;
|
| 487 |
}; |
| 488 |
|
| 489 |
return ret;
|
| 490 |
} |
| 491 |
|
| 492 |
static ssize_t qemu_vlan_deliver_packet(VLANClientState *sender,
|
| 493 |
unsigned flags,
|
| 494 |
const uint8_t *buf,
|
| 495 |
size_t size, |
| 496 |
void *opaque)
|
| 497 |
{
|
| 498 |
VLANState *vlan = opaque; |
| 499 |
VLANClientState *vc; |
| 500 |
ssize_t ret = -1;
|
| 501 |
|
| 502 |
QTAILQ_FOREACH(vc, &vlan->clients, next) {
|
| 503 |
ssize_t len; |
| 504 |
|
| 505 |
if (vc == sender) {
|
| 506 |
continue;
|
| 507 |
} |
| 508 |
|
| 509 |
if (vc->link_down) {
|
| 510 |
ret = size; |
| 511 |
continue;
|
| 512 |
} |
| 513 |
|
| 514 |
if (vc->receive_disabled) {
|
| 515 |
ret = 0;
|
| 516 |
continue;
|
| 517 |
} |
| 518 |
|
| 519 |
if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->receive_raw) {
|
| 520 |
len = vc->receive_raw(vc, buf, size); |
| 521 |
} else {
|
| 522 |
len = vc->receive(vc, buf, size); |
| 523 |
} |
| 524 |
|
| 525 |
if (len == 0) { |
| 526 |
vc->receive_disabled = 1;
|
| 527 |
} |
| 528 |
|
| 529 |
ret = (ret >= 0) ? ret : len;
|
| 530 |
|
| 531 |
} |
| 532 |
|
| 533 |
return ret;
|
| 534 |
} |
| 535 |
|
| 536 |
void qemu_purge_queued_packets(VLANClientState *vc)
|
| 537 |
{
|
| 538 |
NetQueue *queue; |
| 539 |
|
| 540 |
if (!vc->peer && !vc->vlan) {
|
| 541 |
return;
|
| 542 |
} |
| 543 |
|
| 544 |
if (vc->peer) {
|
| 545 |
queue = vc->peer->send_queue; |
| 546 |
} else {
|
| 547 |
queue = vc->vlan->send_queue; |
| 548 |
} |
| 549 |
|
| 550 |
qemu_net_queue_purge(queue, vc); |
| 551 |
} |
| 552 |
|
| 553 |
void qemu_flush_queued_packets(VLANClientState *vc)
|
| 554 |
{
|
| 555 |
NetQueue *queue; |
| 556 |
|
| 557 |
vc->receive_disabled = 0;
|
| 558 |
|
| 559 |
if (vc->vlan) {
|
| 560 |
queue = vc->vlan->send_queue; |
| 561 |
} else {
|
| 562 |
queue = vc->send_queue; |
| 563 |
} |
| 564 |
|
| 565 |
qemu_net_queue_flush(queue); |
| 566 |
} |
| 567 |
|
| 568 |
static ssize_t qemu_send_packet_async_with_flags(VLANClientState *sender,
|
| 569 |
unsigned flags,
|
| 570 |
const uint8_t *buf, int size, |
| 571 |
NetPacketSent *sent_cb) |
| 572 |
{
|
| 573 |
NetQueue *queue; |
| 574 |
|
| 575 |
#ifdef DEBUG_NET
|
| 576 |
printf("qemu_send_packet_async:\n");
|
| 577 |
hex_dump(stdout, buf, size); |
| 578 |
#endif
|
| 579 |
|
| 580 |
if (sender->link_down || (!sender->peer && !sender->vlan)) {
|
| 581 |
return size;
|
| 582 |
} |
| 583 |
|
| 584 |
if (sender->peer) {
|
| 585 |
queue = sender->peer->send_queue; |
| 586 |
} else {
|
| 587 |
queue = sender->vlan->send_queue; |
| 588 |
} |
| 589 |
|
| 590 |
return qemu_net_queue_send(queue, sender, flags, buf, size, sent_cb);
|
| 591 |
} |
| 592 |
|
| 593 |
ssize_t qemu_send_packet_async(VLANClientState *sender, |
| 594 |
const uint8_t *buf, int size, |
| 595 |
NetPacketSent *sent_cb) |
| 596 |
{
|
| 597 |
return qemu_send_packet_async_with_flags(sender, QEMU_NET_PACKET_FLAG_NONE,
|
| 598 |
buf, size, sent_cb); |
| 599 |
} |
| 600 |
|
| 601 |
void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size) |
| 602 |
{
|
| 603 |
qemu_send_packet_async(vc, buf, size, NULL);
|
| 604 |
} |
| 605 |
|
| 606 |
ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size) |
| 607 |
{
|
| 608 |
return qemu_send_packet_async_with_flags(vc, QEMU_NET_PACKET_FLAG_RAW,
|
| 609 |
buf, size, NULL);
|
| 610 |
} |
| 611 |
|
| 612 |
static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, |
| 613 |
int iovcnt)
|
| 614 |
{
|
| 615 |
uint8_t buffer[4096];
|
| 616 |
size_t offset = 0;
|
| 617 |
int i;
|
| 618 |
|
| 619 |
for (i = 0; i < iovcnt; i++) { |
| 620 |
size_t len; |
| 621 |
|
| 622 |
len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
|
| 623 |
memcpy(buffer + offset, iov[i].iov_base, len); |
| 624 |
offset += len; |
| 625 |
} |
| 626 |
|
| 627 |
return vc->receive(vc, buffer, offset);
|
| 628 |
} |
| 629 |
|
| 630 |
static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) |
| 631 |
{
|
| 632 |
size_t offset = 0;
|
| 633 |
int i;
|
| 634 |
|
| 635 |
for (i = 0; i < iovcnt; i++) |
| 636 |
offset += iov[i].iov_len; |
| 637 |
return offset;
|
| 638 |
} |
| 639 |
|
| 640 |
static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
|
| 641 |
unsigned flags,
|
| 642 |
const struct iovec *iov, |
| 643 |
int iovcnt,
|
| 644 |
void *opaque)
|
| 645 |
{
|
| 646 |
VLANClientState *vc = opaque; |
| 647 |
|
| 648 |
if (vc->link_down) {
|
| 649 |
return calc_iov_length(iov, iovcnt);
|
| 650 |
} |
| 651 |
|
| 652 |
if (vc->receive_iov) {
|
| 653 |
return vc->receive_iov(vc, iov, iovcnt);
|
| 654 |
} else {
|
| 655 |
return vc_sendv_compat(vc, iov, iovcnt);
|
| 656 |
} |
| 657 |
} |
| 658 |
|
| 659 |
static ssize_t qemu_vlan_deliver_packet_iov(VLANClientState *sender,
|
| 660 |
unsigned flags,
|
| 661 |
const struct iovec *iov, |
| 662 |
int iovcnt,
|
| 663 |
void *opaque)
|
| 664 |
{
|
| 665 |
VLANState *vlan = opaque; |
| 666 |
VLANClientState *vc; |
| 667 |
ssize_t ret = -1;
|
| 668 |
|
| 669 |
QTAILQ_FOREACH(vc, &vlan->clients, next) {
|
| 670 |
ssize_t len; |
| 671 |
|
| 672 |
if (vc == sender) {
|
| 673 |
continue;
|
| 674 |
} |
| 675 |
|
| 676 |
if (vc->link_down) {
|
| 677 |
ret = calc_iov_length(iov, iovcnt); |
| 678 |
continue;
|
| 679 |
} |
| 680 |
|
| 681 |
assert(!(flags & QEMU_NET_PACKET_FLAG_RAW)); |
| 682 |
|
| 683 |
if (vc->receive_iov) {
|
| 684 |
len = vc->receive_iov(vc, iov, iovcnt); |
| 685 |
} else {
|
| 686 |
len = vc_sendv_compat(vc, iov, iovcnt); |
| 687 |
} |
| 688 |
|
| 689 |
ret = (ret >= 0) ? ret : len;
|
| 690 |
} |
| 691 |
|
| 692 |
return ret;
|
| 693 |
} |
| 694 |
|
| 695 |
ssize_t qemu_sendv_packet_async(VLANClientState *sender, |
| 696 |
const struct iovec *iov, int iovcnt, |
| 697 |
NetPacketSent *sent_cb) |
| 698 |
{
|
| 699 |
NetQueue *queue; |
| 700 |
|
| 701 |
if (sender->link_down || (!sender->peer && !sender->vlan)) {
|
| 702 |
return calc_iov_length(iov, iovcnt);
|
| 703 |
} |
| 704 |
|
| 705 |
if (sender->peer) {
|
| 706 |
queue = sender->peer->send_queue; |
| 707 |
} else {
|
| 708 |
queue = sender->vlan->send_queue; |
| 709 |
} |
| 710 |
|
| 711 |
return qemu_net_queue_send_iov(queue, sender,
|
| 712 |
QEMU_NET_PACKET_FLAG_NONE, |
| 713 |
iov, iovcnt, sent_cb); |
| 714 |
} |
| 715 |
|
| 716 |
ssize_t |
| 717 |
qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt) |
| 718 |
{
|
| 719 |
return qemu_sendv_packet_async(vc, iov, iovcnt, NULL); |
| 720 |
} |
| 721 |
|
| 722 |
#if defined(CONFIG_VDE)
|
| 723 |
typedef struct VDEState { |
| 724 |
VLANClientState *vc; |
| 725 |
VDECONN *vde; |
| 726 |
} VDEState; |
| 727 |
|
| 728 |
static void vde_to_qemu(void *opaque) |
| 729 |
{
|
| 730 |
VDEState *s = opaque; |
| 731 |
uint8_t buf[4096];
|
| 732 |
int size;
|
| 733 |
|
| 734 |
size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0); |
| 735 |
if (size > 0) { |
| 736 |
qemu_send_packet(s->vc, buf, size); |
| 737 |
} |
| 738 |
} |
| 739 |
|
| 740 |
static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
| 741 |
{
|
| 742 |
VDEState *s = vc->opaque; |
| 743 |
ssize_t ret; |
| 744 |
|
| 745 |
do {
|
| 746 |
ret = vde_send(s->vde, (const char *)buf, size, 0); |
| 747 |
} while (ret < 0 && errno == EINTR); |
| 748 |
|
| 749 |
return ret;
|
| 750 |
} |
| 751 |
|
| 752 |
static void vde_cleanup(VLANClientState *vc) |
| 753 |
{
|
| 754 |
VDEState *s = vc->opaque; |
| 755 |
qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL); |
| 756 |
vde_close(s->vde); |
| 757 |
qemu_free(s); |
| 758 |
} |
| 759 |
|
| 760 |
static int net_vde_init(VLANState *vlan, const char *model, |
| 761 |
const char *name, const char *sock, |
| 762 |
int port, const char *group, int mode) |
| 763 |
{
|
| 764 |
VDEState *s; |
| 765 |
char *init_group = (char *)group; |
| 766 |
char *init_sock = (char *)sock; |
| 767 |
|
| 768 |
struct vde_open_args args = {
|
| 769 |
.port = port, |
| 770 |
.group = init_group, |
| 771 |
.mode = mode, |
| 772 |
}; |
| 773 |
|
| 774 |
s = qemu_mallocz(sizeof(VDEState));
|
| 775 |
s->vde = vde_open(init_sock, (char *)"QEMU", &args); |
| 776 |
if (!s->vde){
|
| 777 |
free(s); |
| 778 |
return -1; |
| 779 |
} |
| 780 |
s->vc = qemu_new_vlan_client(NET_CLIENT_TYPE_VDE, |
| 781 |
vlan, NULL, model, name, NULL, |
| 782 |
vde_receive, NULL, NULL, |
| 783 |
vde_cleanup, s); |
| 784 |
qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
|
| 785 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d", |
| 786 |
sock, vde_datafd(s->vde)); |
| 787 |
return 0; |
| 788 |
} |
| 789 |
#endif
|
| 790 |
|
| 791 |
/* network connection */
|
| 792 |
typedef struct NetSocketState { |
| 793 |
VLANClientState *vc; |
| 794 |
int fd;
|
| 795 |
int state; /* 0 = getting length, 1 = getting data */ |
| 796 |
unsigned int index; |
| 797 |
unsigned int packet_len; |
| 798 |
uint8_t buf[4096];
|
| 799 |
struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ |
| 800 |
} NetSocketState; |
| 801 |
|
| 802 |
typedef struct NetSocketListenState { |
| 803 |
VLANState *vlan; |
| 804 |
char *model;
|
| 805 |
char *name;
|
| 806 |
int fd;
|
| 807 |
} NetSocketListenState; |
| 808 |
|
| 809 |
/* XXX: we consider we can send the whole packet without blocking */
|
| 810 |
static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
| 811 |
{
|
| 812 |
NetSocketState *s = vc->opaque; |
| 813 |
uint32_t len; |
| 814 |
len = htonl(size); |
| 815 |
|
| 816 |
send_all(s->fd, (const uint8_t *)&len, sizeof(len)); |
| 817 |
return send_all(s->fd, buf, size);
|
| 818 |
} |
| 819 |
|
| 820 |
static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size) |
| 821 |
{
|
| 822 |
NetSocketState *s = vc->opaque; |
| 823 |
|
| 824 |
return sendto(s->fd, (const void *)buf, size, 0, |
| 825 |
(struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst)); |
| 826 |
} |
| 827 |
|
| 828 |
static void net_socket_send(void *opaque) |
| 829 |
{
|
| 830 |
NetSocketState *s = opaque; |
| 831 |
int size, err;
|
| 832 |
unsigned l;
|
| 833 |
uint8_t buf1[4096];
|
| 834 |
const uint8_t *buf;
|
| 835 |
|
| 836 |
size = recv(s->fd, (void *)buf1, sizeof(buf1), 0); |
| 837 |
if (size < 0) { |
| 838 |
err = socket_error(); |
| 839 |
if (err != EWOULDBLOCK)
|
| 840 |
goto eoc;
|
| 841 |
} else if (size == 0) { |
| 842 |
/* end of connection */
|
| 843 |
eoc:
|
| 844 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 845 |
closesocket(s->fd); |
| 846 |
return;
|
| 847 |
} |
| 848 |
buf = buf1; |
| 849 |
while (size > 0) { |
| 850 |
/* reassemble a packet from the network */
|
| 851 |
switch(s->state) {
|
| 852 |
case 0: |
| 853 |
l = 4 - s->index;
|
| 854 |
if (l > size)
|
| 855 |
l = size; |
| 856 |
memcpy(s->buf + s->index, buf, l); |
| 857 |
buf += l; |
| 858 |
size -= l; |
| 859 |
s->index += l; |
| 860 |
if (s->index == 4) { |
| 861 |
/* got length */
|
| 862 |
s->packet_len = ntohl(*(uint32_t *)s->buf); |
| 863 |
s->index = 0;
|
| 864 |
s->state = 1;
|
| 865 |
} |
| 866 |
break;
|
| 867 |
case 1: |
| 868 |
l = s->packet_len - s->index; |
| 869 |
if (l > size)
|
| 870 |
l = size; |
| 871 |
if (s->index + l <= sizeof(s->buf)) { |
| 872 |
memcpy(s->buf + s->index, buf, l); |
| 873 |
} else {
|
| 874 |
fprintf(stderr, "serious error: oversized packet received,"
|
| 875 |
"connection terminated.\n");
|
| 876 |
s->state = 0;
|
| 877 |
goto eoc;
|
| 878 |
} |
| 879 |
|
| 880 |
s->index += l; |
| 881 |
buf += l; |
| 882 |
size -= l; |
| 883 |
if (s->index >= s->packet_len) {
|
| 884 |
qemu_send_packet(s->vc, s->buf, s->packet_len); |
| 885 |
s->index = 0;
|
| 886 |
s->state = 0;
|
| 887 |
} |
| 888 |
break;
|
| 889 |
} |
| 890 |
} |
| 891 |
} |
| 892 |
|
| 893 |
static void net_socket_send_dgram(void *opaque) |
| 894 |
{
|
| 895 |
NetSocketState *s = opaque; |
| 896 |
int size;
|
| 897 |
|
| 898 |
size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0); |
| 899 |
if (size < 0) |
| 900 |
return;
|
| 901 |
if (size == 0) { |
| 902 |
/* end of connection */
|
| 903 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 904 |
return;
|
| 905 |
} |
| 906 |
qemu_send_packet(s->vc, s->buf, size); |
| 907 |
} |
| 908 |
|
| 909 |
static int net_socket_mcast_create(struct sockaddr_in *mcastaddr) |
| 910 |
{
|
| 911 |
struct ip_mreq imr;
|
| 912 |
int fd;
|
| 913 |
int val, ret;
|
| 914 |
if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
|
| 915 |
fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n",
|
| 916 |
inet_ntoa(mcastaddr->sin_addr), |
| 917 |
(int)ntohl(mcastaddr->sin_addr.s_addr));
|
| 918 |
return -1; |
| 919 |
|
| 920 |
} |
| 921 |
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
| 922 |
if (fd < 0) { |
| 923 |
perror("socket(PF_INET, SOCK_DGRAM)");
|
| 924 |
return -1; |
| 925 |
} |
| 926 |
|
| 927 |
val = 1;
|
| 928 |
ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, |
| 929 |
(const char *)&val, sizeof(val)); |
| 930 |
if (ret < 0) { |
| 931 |
perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
|
| 932 |
goto fail;
|
| 933 |
} |
| 934 |
|
| 935 |
ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); |
| 936 |
if (ret < 0) { |
| 937 |
perror("bind");
|
| 938 |
goto fail;
|
| 939 |
} |
| 940 |
|
| 941 |
/* Add host to multicast group */
|
| 942 |
imr.imr_multiaddr = mcastaddr->sin_addr; |
| 943 |
imr.imr_interface.s_addr = htonl(INADDR_ANY); |
| 944 |
|
| 945 |
ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, |
| 946 |
(const char *)&imr, sizeof(struct ip_mreq)); |
| 947 |
if (ret < 0) { |
| 948 |
perror("setsockopt(IP_ADD_MEMBERSHIP)");
|
| 949 |
goto fail;
|
| 950 |
} |
| 951 |
|
| 952 |
/* Force mcast msgs to loopback (eg. several QEMUs in same host */
|
| 953 |
val = 1;
|
| 954 |
ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, |
| 955 |
(const char *)&val, sizeof(val)); |
| 956 |
if (ret < 0) { |
| 957 |
perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
|
| 958 |
goto fail;
|
| 959 |
} |
| 960 |
|
| 961 |
socket_set_nonblock(fd); |
| 962 |
return fd;
|
| 963 |
fail:
|
| 964 |
if (fd >= 0) |
| 965 |
closesocket(fd); |
| 966 |
return -1; |
| 967 |
} |
| 968 |
|
| 969 |
static void net_socket_cleanup(VLANClientState *vc) |
| 970 |
{
|
| 971 |
NetSocketState *s = vc->opaque; |
| 972 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 973 |
close(s->fd); |
| 974 |
qemu_free(s); |
| 975 |
} |
| 976 |
|
| 977 |
static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
|
| 978 |
const char *model, |
| 979 |
const char *name, |
| 980 |
int fd, int is_connected) |
| 981 |
{
|
| 982 |
struct sockaddr_in saddr;
|
| 983 |
int newfd;
|
| 984 |
socklen_t saddr_len; |
| 985 |
NetSocketState *s; |
| 986 |
|
| 987 |
/* fd passed: multicast: "learn" dgram_dst address from bound address and save it
|
| 988 |
* Because this may be "shared" socket from a "master" process, datagrams would be recv()
|
| 989 |
* by ONLY ONE process: we must "clone" this dgram socket --jjo
|
| 990 |
*/
|
| 991 |
|
| 992 |
if (is_connected) {
|
| 993 |
if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) { |
| 994 |
/* must be bound */
|
| 995 |
if (saddr.sin_addr.s_addr==0) { |
| 996 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n",
|
| 997 |
fd); |
| 998 |
return NULL; |
| 999 |
} |
| 1000 |
/* clone dgram socket */
|
| 1001 |
newfd = net_socket_mcast_create(&saddr); |
| 1002 |
if (newfd < 0) { |
| 1003 |
/* error already reported by net_socket_mcast_create() */
|
| 1004 |
close(fd); |
| 1005 |
return NULL; |
| 1006 |
} |
| 1007 |
/* clone newfd to fd, close newfd */
|
| 1008 |
dup2(newfd, fd); |
| 1009 |
close(newfd); |
| 1010 |
|
| 1011 |
} else {
|
| 1012 |
fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
|
| 1013 |
fd, strerror(errno)); |
| 1014 |
return NULL; |
| 1015 |
} |
| 1016 |
} |
| 1017 |
|
| 1018 |
s = qemu_mallocz(sizeof(NetSocketState));
|
| 1019 |
s->fd = fd; |
| 1020 |
|
| 1021 |
s->vc = qemu_new_vlan_client(NET_CLIENT_TYPE_SOCKET, |
| 1022 |
vlan, NULL, model, name, NULL, |
| 1023 |
net_socket_receive_dgram, NULL, NULL, |
| 1024 |
net_socket_cleanup, s); |
| 1025 |
qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
|
| 1026 |
|
| 1027 |
/* mcast: save bound address as dst */
|
| 1028 |
if (is_connected) s->dgram_dst=saddr;
|
| 1029 |
|
| 1030 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
| 1031 |
"socket: fd=%d (%s mcast=%s:%d)",
|
| 1032 |
fd, is_connected? "cloned" : "", |
| 1033 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 1034 |
return s;
|
| 1035 |
} |
| 1036 |
|
| 1037 |
static void net_socket_connect(void *opaque) |
| 1038 |
{
|
| 1039 |
NetSocketState *s = opaque; |
| 1040 |
qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
|
| 1041 |
} |
| 1042 |
|
| 1043 |
static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
|
| 1044 |
const char *model, |
| 1045 |
const char *name, |
| 1046 |
int fd, int is_connected) |
| 1047 |
{
|
| 1048 |
NetSocketState *s; |
| 1049 |
s = qemu_mallocz(sizeof(NetSocketState));
|
| 1050 |
s->fd = fd; |
| 1051 |
s->vc = qemu_new_vlan_client(NET_CLIENT_TYPE_SOCKET, |
| 1052 |
vlan, NULL, model, name, NULL, |
| 1053 |
net_socket_receive, NULL, NULL, |
| 1054 |
net_socket_cleanup, s); |
| 1055 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
| 1056 |
"socket: fd=%d", fd);
|
| 1057 |
if (is_connected) {
|
| 1058 |
net_socket_connect(s); |
| 1059 |
} else {
|
| 1060 |
qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
|
| 1061 |
} |
| 1062 |
return s;
|
| 1063 |
} |
| 1064 |
|
| 1065 |
static NetSocketState *net_socket_fd_init(VLANState *vlan,
|
| 1066 |
const char *model, const char *name, |
| 1067 |
int fd, int is_connected) |
| 1068 |
{
|
| 1069 |
int so_type = -1, optlen=sizeof(so_type); |
| 1070 |
|
| 1071 |
if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, |
| 1072 |
(socklen_t *)&optlen)< 0) {
|
| 1073 |
fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd);
|
| 1074 |
return NULL; |
| 1075 |
} |
| 1076 |
switch(so_type) {
|
| 1077 |
case SOCK_DGRAM:
|
| 1078 |
return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
|
| 1079 |
case SOCK_STREAM:
|
| 1080 |
return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
|
| 1081 |
default:
|
| 1082 |
/* who knows ... this could be a eg. a pty, do warn and continue as stream */
|
| 1083 |
fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
|
| 1084 |
return net_socket_fd_init_stream(vlan, model, name, fd, is_connected);
|
| 1085 |
} |
| 1086 |
return NULL; |
| 1087 |
} |
| 1088 |
|
| 1089 |
static void net_socket_accept(void *opaque) |
| 1090 |
{
|
| 1091 |
NetSocketListenState *s = opaque; |
| 1092 |
NetSocketState *s1; |
| 1093 |
struct sockaddr_in saddr;
|
| 1094 |
socklen_t len; |
| 1095 |
int fd;
|
| 1096 |
|
| 1097 |
for(;;) {
|
| 1098 |
len = sizeof(saddr);
|
| 1099 |
fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
|
| 1100 |
if (fd < 0 && errno != EINTR) { |
| 1101 |
return;
|
| 1102 |
} else if (fd >= 0) { |
| 1103 |
break;
|
| 1104 |
} |
| 1105 |
} |
| 1106 |
s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
|
| 1107 |
if (!s1) {
|
| 1108 |
closesocket(fd); |
| 1109 |
} else {
|
| 1110 |
snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
|
| 1111 |
"socket: connection from %s:%d",
|
| 1112 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 1113 |
} |
| 1114 |
} |
| 1115 |
|
| 1116 |
static int net_socket_listen_init(VLANState *vlan, |
| 1117 |
const char *model, |
| 1118 |
const char *name, |
| 1119 |
const char *host_str) |
| 1120 |
{
|
| 1121 |
NetSocketListenState *s; |
| 1122 |
int fd, val, ret;
|
| 1123 |
struct sockaddr_in saddr;
|
| 1124 |
|
| 1125 |
if (parse_host_port(&saddr, host_str) < 0) |
| 1126 |
return -1; |
| 1127 |
|
| 1128 |
s = qemu_mallocz(sizeof(NetSocketListenState));
|
| 1129 |
|
| 1130 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
| 1131 |
if (fd < 0) { |
| 1132 |
perror("socket");
|
| 1133 |
return -1; |
| 1134 |
} |
| 1135 |
socket_set_nonblock(fd); |
| 1136 |
|
| 1137 |
/* allow fast reuse */
|
| 1138 |
val = 1;
|
| 1139 |
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val)); |
| 1140 |
|
| 1141 |
ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
| 1142 |
if (ret < 0) { |
| 1143 |
perror("bind");
|
| 1144 |
return -1; |
| 1145 |
} |
| 1146 |
ret = listen(fd, 0);
|
| 1147 |
if (ret < 0) { |
| 1148 |
perror("listen");
|
| 1149 |
return -1; |
| 1150 |
} |
| 1151 |
s->vlan = vlan; |
| 1152 |
s->model = qemu_strdup(model); |
| 1153 |
s->name = name ? qemu_strdup(name) : NULL;
|
| 1154 |
s->fd = fd; |
| 1155 |
qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
|
| 1156 |
return 0; |
| 1157 |
} |
| 1158 |
|
| 1159 |
static int net_socket_connect_init(VLANState *vlan, |
| 1160 |
const char *model, |
| 1161 |
const char *name, |
| 1162 |
const char *host_str) |
| 1163 |
{
|
| 1164 |
NetSocketState *s; |
| 1165 |
int fd, connected, ret, err;
|
| 1166 |
struct sockaddr_in saddr;
|
| 1167 |
|
| 1168 |
if (parse_host_port(&saddr, host_str) < 0) |
| 1169 |
return -1; |
| 1170 |
|
| 1171 |
fd = socket(PF_INET, SOCK_STREAM, 0);
|
| 1172 |
if (fd < 0) { |
| 1173 |
perror("socket");
|
| 1174 |
return -1; |
| 1175 |
} |
| 1176 |
socket_set_nonblock(fd); |
| 1177 |
|
| 1178 |
connected = 0;
|
| 1179 |
for(;;) {
|
| 1180 |
ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
| 1181 |
if (ret < 0) { |
| 1182 |
err = socket_error(); |
| 1183 |
if (err == EINTR || err == EWOULDBLOCK) {
|
| 1184 |
} else if (err == EINPROGRESS) { |
| 1185 |
break;
|
| 1186 |
#ifdef _WIN32
|
| 1187 |
} else if (err == WSAEALREADY) { |
| 1188 |
break;
|
| 1189 |
#endif
|
| 1190 |
} else {
|
| 1191 |
perror("connect");
|
| 1192 |
closesocket(fd); |
| 1193 |
return -1; |
| 1194 |
} |
| 1195 |
} else {
|
| 1196 |
connected = 1;
|
| 1197 |
break;
|
| 1198 |
} |
| 1199 |
} |
| 1200 |
s = net_socket_fd_init(vlan, model, name, fd, connected); |
| 1201 |
if (!s)
|
| 1202 |
return -1; |
| 1203 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
| 1204 |
"socket: connect to %s:%d",
|
| 1205 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 1206 |
return 0; |
| 1207 |
} |
| 1208 |
|
| 1209 |
static int net_socket_mcast_init(VLANState *vlan, |
| 1210 |
const char *model, |
| 1211 |
const char *name, |
| 1212 |
const char *host_str) |
| 1213 |
{
|
| 1214 |
NetSocketState *s; |
| 1215 |
int fd;
|
| 1216 |
struct sockaddr_in saddr;
|
| 1217 |
|
| 1218 |
if (parse_host_port(&saddr, host_str) < 0) |
| 1219 |
return -1; |
| 1220 |
|
| 1221 |
|
| 1222 |
fd = net_socket_mcast_create(&saddr); |
| 1223 |
if (fd < 0) |
| 1224 |
return -1; |
| 1225 |
|
| 1226 |
s = net_socket_fd_init(vlan, model, name, fd, 0);
|
| 1227 |
if (!s)
|
| 1228 |
return -1; |
| 1229 |
|
| 1230 |
s->dgram_dst = saddr; |
| 1231 |
|
| 1232 |
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
|
| 1233 |
"socket: mcast=%s:%d",
|
| 1234 |
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 1235 |
return 0; |
| 1236 |
|
| 1237 |
} |
| 1238 |
|
| 1239 |
typedef struct DumpState { |
| 1240 |
VLANClientState *pcap_vc; |
| 1241 |
int fd;
|
| 1242 |
int pcap_caplen;
|
| 1243 |
} DumpState; |
| 1244 |
|
| 1245 |
#define PCAP_MAGIC 0xa1b2c3d4 |
| 1246 |
|
| 1247 |
struct pcap_file_hdr {
|
| 1248 |
uint32_t magic; |
| 1249 |
uint16_t version_major; |
| 1250 |
uint16_t version_minor; |
| 1251 |
int32_t thiszone; |
| 1252 |
uint32_t sigfigs; |
| 1253 |
uint32_t snaplen; |
| 1254 |
uint32_t linktype; |
| 1255 |
}; |
| 1256 |
|
| 1257 |
struct pcap_sf_pkthdr {
|
| 1258 |
struct {
|
| 1259 |
int32_t tv_sec; |
| 1260 |
int32_t tv_usec; |
| 1261 |
} ts; |
| 1262 |
uint32_t caplen; |
| 1263 |
uint32_t len; |
| 1264 |
}; |
| 1265 |
|
| 1266 |
static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
| 1267 |
{
|
| 1268 |
DumpState *s = vc->opaque; |
| 1269 |
struct pcap_sf_pkthdr hdr;
|
| 1270 |
int64_t ts; |
| 1271 |
int caplen;
|
| 1272 |
|
| 1273 |
/* Early return in case of previous error. */
|
| 1274 |
if (s->fd < 0) { |
| 1275 |
return size;
|
| 1276 |
} |
| 1277 |
|
| 1278 |
ts = muldiv64(qemu_get_clock(vm_clock), 1000000, get_ticks_per_sec());
|
| 1279 |
caplen = size > s->pcap_caplen ? s->pcap_caplen : size; |
| 1280 |
|
| 1281 |
hdr.ts.tv_sec = ts / 1000000;
|
| 1282 |
hdr.ts.tv_usec = ts % 1000000;
|
| 1283 |
hdr.caplen = caplen; |
| 1284 |
hdr.len = size; |
| 1285 |
if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) || |
| 1286 |
write(s->fd, buf, caplen) != caplen) {
|
| 1287 |
qemu_log("-net dump write error - stop dump\n");
|
| 1288 |
close(s->fd); |
| 1289 |
s->fd = -1;
|
| 1290 |
} |
| 1291 |
|
| 1292 |
return size;
|
| 1293 |
} |
| 1294 |
|
| 1295 |
static void net_dump_cleanup(VLANClientState *vc) |
| 1296 |
{
|
| 1297 |
DumpState *s = vc->opaque; |
| 1298 |
|
| 1299 |
close(s->fd); |
| 1300 |
qemu_free(s); |
| 1301 |
} |
| 1302 |
|
| 1303 |
static int net_dump_init(VLANState *vlan, const char *device, |
| 1304 |
const char *name, const char *filename, int len) |
| 1305 |
{
|
| 1306 |
struct pcap_file_hdr hdr;
|
| 1307 |
DumpState *s; |
| 1308 |
|
| 1309 |
s = qemu_malloc(sizeof(DumpState));
|
| 1310 |
|
| 1311 |
s->fd = open(filename, O_CREAT | O_WRONLY | O_BINARY, 0644);
|
| 1312 |
if (s->fd < 0) { |
| 1313 |
qemu_error("-net dump: can't open %s\n", filename);
|
| 1314 |
return -1; |
| 1315 |
} |
| 1316 |
|
| 1317 |
s->pcap_caplen = len; |
| 1318 |
|
| 1319 |
hdr.magic = PCAP_MAGIC; |
| 1320 |
hdr.version_major = 2;
|
| 1321 |
hdr.version_minor = 4;
|
| 1322 |
hdr.thiszone = 0;
|
| 1323 |
hdr.sigfigs = 0;
|
| 1324 |
hdr.snaplen = s->pcap_caplen; |
| 1325 |
hdr.linktype = 1;
|
| 1326 |
|
| 1327 |
if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) { |
| 1328 |
qemu_error("-net dump write error: %s\n", strerror(errno));
|
| 1329 |
close(s->fd); |
| 1330 |
qemu_free(s); |
| 1331 |
return -1; |
| 1332 |
} |
| 1333 |
|
| 1334 |
s->pcap_vc = qemu_new_vlan_client(NET_CLIENT_TYPE_DUMP, |
| 1335 |
vlan, NULL, device, name, NULL, |
| 1336 |
dump_receive, NULL, NULL, |
| 1337 |
net_dump_cleanup, s); |
| 1338 |
snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
|
| 1339 |
"dump to %s (len=%d)", filename, len);
|
| 1340 |
return 0; |
| 1341 |
} |
| 1342 |
|
| 1343 |
/* find or alloc a new VLAN */
|
| 1344 |
VLANState *qemu_find_vlan(int id, int allocate) |
| 1345 |
{
|
| 1346 |
VLANState *vlan; |
| 1347 |
|
| 1348 |
QTAILQ_FOREACH(vlan, &vlans, next) {
|
| 1349 |
if (vlan->id == id) {
|
| 1350 |
return vlan;
|
| 1351 |
} |
| 1352 |
} |
| 1353 |
|
| 1354 |
if (!allocate) {
|
| 1355 |
return NULL; |
| 1356 |
} |
| 1357 |
|
| 1358 |
vlan = qemu_mallocz(sizeof(VLANState));
|
| 1359 |
vlan->id = id; |
| 1360 |
QTAILQ_INIT(&vlan->clients); |
| 1361 |
|
| 1362 |
vlan->send_queue = qemu_new_net_queue(qemu_vlan_deliver_packet, |
| 1363 |
qemu_vlan_deliver_packet_iov, |
| 1364 |
vlan); |
| 1365 |
|
| 1366 |
QTAILQ_INSERT_TAIL(&vlans, vlan, next); |
| 1367 |
|
| 1368 |
return vlan;
|
| 1369 |
} |
| 1370 |
|
| 1371 |
VLANClientState *qemu_find_netdev(const char *id) |
| 1372 |
{
|
| 1373 |
VLANClientState *vc; |
| 1374 |
|
| 1375 |
QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
|
| 1376 |
if (!strcmp(vc->name, id)) {
|
| 1377 |
return vc;
|
| 1378 |
} |
| 1379 |
} |
| 1380 |
|
| 1381 |
return NULL; |
| 1382 |
} |
| 1383 |
|
| 1384 |
static int nic_get_free_idx(void) |
| 1385 |
{
|
| 1386 |
int index;
|
| 1387 |
|
| 1388 |
for (index = 0; index < MAX_NICS; index++) |
| 1389 |
if (!nd_table[index].used)
|
| 1390 |
return index;
|
| 1391 |
return -1; |
| 1392 |
} |
| 1393 |
|
| 1394 |
int qemu_show_nic_models(const char *arg, const char *const *models) |
| 1395 |
{
|
| 1396 |
int i;
|
| 1397 |
|
| 1398 |
if (!arg || strcmp(arg, "?")) |
| 1399 |
return 0; |
| 1400 |
|
| 1401 |
fprintf(stderr, "qemu: Supported NIC models: ");
|
| 1402 |
for (i = 0 ; models[i]; i++) |
| 1403 |
fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); |
| 1404 |
return 1; |
| 1405 |
} |
| 1406 |
|
| 1407 |
void qemu_check_nic_model(NICInfo *nd, const char *model) |
| 1408 |
{
|
| 1409 |
const char *models[2]; |
| 1410 |
|
| 1411 |
models[0] = model;
|
| 1412 |
models[1] = NULL; |
| 1413 |
|
| 1414 |
if (qemu_show_nic_models(nd->model, models))
|
| 1415 |
exit(0);
|
| 1416 |
if (qemu_find_nic_model(nd, models, model) < 0) |
| 1417 |
exit(1);
|
| 1418 |
} |
| 1419 |
|
| 1420 |
int qemu_find_nic_model(NICInfo *nd, const char * const *models, |
| 1421 |
const char *default_model) |
| 1422 |
{
|
| 1423 |
int i;
|
| 1424 |
|
| 1425 |
if (!nd->model)
|
| 1426 |
nd->model = qemu_strdup(default_model); |
| 1427 |
|
| 1428 |
for (i = 0 ; models[i]; i++) { |
| 1429 |
if (strcmp(nd->model, models[i]) == 0) |
| 1430 |
return i;
|
| 1431 |
} |
| 1432 |
|
| 1433 |
qemu_error("qemu: Unsupported NIC model: %s\n", nd->model);
|
| 1434 |
return -1; |
| 1435 |
} |
| 1436 |
|
| 1437 |
int net_handle_fd_param(Monitor *mon, const char *param) |
| 1438 |
{
|
| 1439 |
if (!qemu_isdigit(param[0])) { |
| 1440 |
int fd;
|
| 1441 |
|
| 1442 |
fd = monitor_get_fd(mon, param); |
| 1443 |
if (fd == -1) { |
| 1444 |
qemu_error("No file descriptor named %s found", param);
|
| 1445 |
return -1; |
| 1446 |
} |
| 1447 |
|
| 1448 |
return fd;
|
| 1449 |
} else {
|
| 1450 |
return strtol(param, NULL, 0); |
| 1451 |
} |
| 1452 |
} |
| 1453 |
|
| 1454 |
static int net_init_nic(QemuOpts *opts, |
| 1455 |
Monitor *mon, |
| 1456 |
const char *name, |
| 1457 |
VLANState *vlan) |
| 1458 |
{
|
| 1459 |
int idx;
|
| 1460 |
NICInfo *nd; |
| 1461 |
const char *netdev; |
| 1462 |
|
| 1463 |
idx = nic_get_free_idx(); |
| 1464 |
if (idx == -1 || nb_nics >= MAX_NICS) { |
| 1465 |
qemu_error("Too Many NICs\n");
|
| 1466 |
return -1; |
| 1467 |
} |
| 1468 |
|
| 1469 |
nd = &nd_table[idx]; |
| 1470 |
|
| 1471 |
memset(nd, 0, sizeof(*nd)); |
| 1472 |
|
| 1473 |
if ((netdev = qemu_opt_get(opts, "netdev"))) { |
| 1474 |
nd->netdev = qemu_find_netdev(netdev); |
| 1475 |
if (!nd->netdev) {
|
| 1476 |
qemu_error("netdev '%s' not found\n", netdev);
|
| 1477 |
return -1; |
| 1478 |
} |
| 1479 |
} else {
|
| 1480 |
assert(vlan); |
| 1481 |
nd->vlan = vlan; |
| 1482 |
} |
| 1483 |
if (name) {
|
| 1484 |
nd->name = qemu_strdup(name); |
| 1485 |
} |
| 1486 |
if (qemu_opt_get(opts, "model")) { |
| 1487 |
nd->model = qemu_strdup(qemu_opt_get(opts, "model"));
|
| 1488 |
} |
| 1489 |
if (qemu_opt_get(opts, "addr")) { |
| 1490 |
nd->devaddr = qemu_strdup(qemu_opt_get(opts, "addr"));
|
| 1491 |
} |
| 1492 |
|
| 1493 |
nd->macaddr[0] = 0x52; |
| 1494 |
nd->macaddr[1] = 0x54; |
| 1495 |
nd->macaddr[2] = 0x00; |
| 1496 |
nd->macaddr[3] = 0x12; |
| 1497 |
nd->macaddr[4] = 0x34; |
| 1498 |
nd->macaddr[5] = 0x56 + idx; |
| 1499 |
|
| 1500 |
if (qemu_opt_get(opts, "macaddr") && |
| 1501 |
parse_macaddr(nd->macaddr, qemu_opt_get(opts, "macaddr")) < 0) { |
| 1502 |
qemu_error("invalid syntax for ethernet address\n");
|
| 1503 |
return -1; |
| 1504 |
} |
| 1505 |
|
| 1506 |
nd->nvectors = qemu_opt_get_number(opts, "vectors", NIC_NVECTORS_UNSPECIFIED);
|
| 1507 |
if (nd->nvectors != NIC_NVECTORS_UNSPECIFIED &&
|
| 1508 |
(nd->nvectors < 0 || nd->nvectors > 0x7ffffff)) { |
| 1509 |
qemu_error("invalid # of vectors: %d\n", nd->nvectors);
|
| 1510 |
return -1; |
| 1511 |
} |
| 1512 |
|
| 1513 |
nd->used = 1;
|
| 1514 |
if (vlan) {
|
| 1515 |
nd->vlan->nb_guest_devs++; |
| 1516 |
} |
| 1517 |
nb_nics++; |
| 1518 |
|
| 1519 |
return idx;
|
| 1520 |
} |
| 1521 |
|
| 1522 |
static int net_init_socket(QemuOpts *opts, |
| 1523 |
Monitor *mon, |
| 1524 |
const char *name, |
| 1525 |
VLANState *vlan) |
| 1526 |
{
|
| 1527 |
if (qemu_opt_get(opts, "fd")) { |
| 1528 |
int fd;
|
| 1529 |
|
| 1530 |
if (qemu_opt_get(opts, "listen") || |
| 1531 |
qemu_opt_get(opts, "connect") ||
|
| 1532 |
qemu_opt_get(opts, "mcast")) {
|
| 1533 |
qemu_error("listen=, connect= and mcast= is invalid with fd=\n");
|
| 1534 |
return -1; |
| 1535 |
} |
| 1536 |
|
| 1537 |
fd = net_handle_fd_param(mon, qemu_opt_get(opts, "fd"));
|
| 1538 |
if (fd == -1) { |
| 1539 |
return -1; |
| 1540 |
} |
| 1541 |
|
| 1542 |
if (!net_socket_fd_init(vlan, "socket", name, fd, 1)) { |
| 1543 |
close(fd); |
| 1544 |
return -1; |
| 1545 |
} |
| 1546 |
} else if (qemu_opt_get(opts, "listen")) { |
| 1547 |
const char *listen; |
| 1548 |
|
| 1549 |
if (qemu_opt_get(opts, "fd") || |
| 1550 |
qemu_opt_get(opts, "connect") ||
|
| 1551 |
qemu_opt_get(opts, "mcast")) {
|
| 1552 |
qemu_error("fd=, connect= and mcast= is invalid with listen=\n");
|
| 1553 |
return -1; |
| 1554 |
} |
| 1555 |
|
| 1556 |
listen = qemu_opt_get(opts, "listen");
|
| 1557 |
|
| 1558 |
if (net_socket_listen_init(vlan, "socket", name, listen) == -1) { |
| 1559 |
return -1; |
| 1560 |
} |
| 1561 |
} else if (qemu_opt_get(opts, "connect")) { |
| 1562 |
const char *connect; |
| 1563 |
|
| 1564 |
if (qemu_opt_get(opts, "fd") || |
| 1565 |
qemu_opt_get(opts, "listen") ||
|
| 1566 |
qemu_opt_get(opts, "mcast")) {
|
| 1567 |
qemu_error("fd=, listen= and mcast= is invalid with connect=\n");
|
| 1568 |
return -1; |
| 1569 |
} |
| 1570 |
|
| 1571 |
connect = qemu_opt_get(opts, "connect");
|
| 1572 |
|
| 1573 |
if (net_socket_connect_init(vlan, "socket", name, connect) == -1) { |
| 1574 |
return -1; |
| 1575 |
} |
| 1576 |
} else if (qemu_opt_get(opts, "mcast")) { |
| 1577 |
const char *mcast; |
| 1578 |
|
| 1579 |
if (qemu_opt_get(opts, "fd") || |
| 1580 |
qemu_opt_get(opts, "connect") ||
|
| 1581 |
qemu_opt_get(opts, "listen")) {
|
| 1582 |
qemu_error("fd=, connect= and listen= is invalid with mcast=\n");
|
| 1583 |
return -1; |
| 1584 |
} |
| 1585 |
|
| 1586 |
mcast = qemu_opt_get(opts, "mcast");
|
| 1587 |
|
| 1588 |
if (net_socket_mcast_init(vlan, "socket", name, mcast) == -1) { |
| 1589 |
return -1; |
| 1590 |
} |
| 1591 |
} else {
|
| 1592 |
qemu_error("-socket requires fd=, listen=, connect= or mcast=\n");
|
| 1593 |
return -1; |
| 1594 |
} |
| 1595 |
|
| 1596 |
if (vlan) {
|
| 1597 |
vlan->nb_host_devs++; |
| 1598 |
} |
| 1599 |
|
| 1600 |
return 0; |
| 1601 |
} |
| 1602 |
|
| 1603 |
#ifdef CONFIG_VDE
|
| 1604 |
static int net_init_vde(QemuOpts *opts, |
| 1605 |
Monitor *mon, |
| 1606 |
const char *name, |
| 1607 |
VLANState *vlan) |
| 1608 |
{
|
| 1609 |
const char *sock; |
| 1610 |
const char *group; |
| 1611 |
int port, mode;
|
| 1612 |
|
| 1613 |
sock = qemu_opt_get(opts, "sock");
|
| 1614 |
group = qemu_opt_get(opts, "group");
|
| 1615 |
|
| 1616 |
port = qemu_opt_get_number(opts, "port", 0); |
| 1617 |
mode = qemu_opt_get_number(opts, "mode", 0700); |
| 1618 |
|
| 1619 |
if (net_vde_init(vlan, "vde", name, sock, port, group, mode) == -1) { |
| 1620 |
return -1; |
| 1621 |
} |
| 1622 |
|
| 1623 |
if (vlan) {
|
| 1624 |
vlan->nb_host_devs++; |
| 1625 |
} |
| 1626 |
|
| 1627 |
return 0; |
| 1628 |
} |
| 1629 |
#endif
|
| 1630 |
|
| 1631 |
static int net_init_dump(QemuOpts *opts, |
| 1632 |
Monitor *mon, |
| 1633 |
const char *name, |
| 1634 |
VLANState *vlan) |
| 1635 |
{
|
| 1636 |
int len;
|
| 1637 |
const char *file; |
| 1638 |
char def_file[128]; |
| 1639 |
|
| 1640 |
assert(vlan); |
| 1641 |
|
| 1642 |
file = qemu_opt_get(opts, "file");
|
| 1643 |
if (!file) {
|
| 1644 |
snprintf(def_file, sizeof(def_file), "qemu-vlan%d.pcap", vlan->id); |
| 1645 |
file = def_file; |
| 1646 |
} |
| 1647 |
|
| 1648 |
len = qemu_opt_get_size(opts, "len", 65536); |
| 1649 |
|
| 1650 |
return net_dump_init(vlan, "dump", name, file, len); |
| 1651 |
} |
| 1652 |
|
| 1653 |
#define NET_COMMON_PARAMS_DESC \
|
| 1654 |
{ \
|
| 1655 |
.name = "type", \
|
| 1656 |
.type = QEMU_OPT_STRING, \ |
| 1657 |
.help = "net client type (nic, tap etc.)", \
|
| 1658 |
}, { \
|
| 1659 |
.name = "vlan", \
|
| 1660 |
.type = QEMU_OPT_NUMBER, \ |
| 1661 |
.help = "vlan number", \
|
| 1662 |
}, { \
|
| 1663 |
.name = "name", \
|
| 1664 |
.type = QEMU_OPT_STRING, \ |
| 1665 |
.help = "identifier for monitor commands", \
|
| 1666 |
} |
| 1667 |
|
| 1668 |
typedef int (*net_client_init_func)(QemuOpts *opts, |
| 1669 |
Monitor *mon, |
| 1670 |
const char *name, |
| 1671 |
VLANState *vlan); |
| 1672 |
|
| 1673 |
/* magic number, but compiler will warn if too small */
|
| 1674 |
#define NET_MAX_DESC 20 |
| 1675 |
|
| 1676 |
static struct { |
| 1677 |
const char *type; |
| 1678 |
net_client_init_func init; |
| 1679 |
QemuOptDesc desc[NET_MAX_DESC]; |
| 1680 |
} net_client_types[] = {
|
| 1681 |
{
|
| 1682 |
.type = "none",
|
| 1683 |
.desc = {
|
| 1684 |
NET_COMMON_PARAMS_DESC, |
| 1685 |
{ /* end of list */ }
|
| 1686 |
}, |
| 1687 |
}, {
|
| 1688 |
.type = "nic",
|
| 1689 |
.init = net_init_nic, |
| 1690 |
.desc = {
|
| 1691 |
NET_COMMON_PARAMS_DESC, |
| 1692 |
{
|
| 1693 |
.name = "netdev",
|
| 1694 |
.type = QEMU_OPT_STRING, |
| 1695 |
.help = "id of -netdev to connect to",
|
| 1696 |
}, |
| 1697 |
{
|
| 1698 |
.name = "macaddr",
|
| 1699 |
.type = QEMU_OPT_STRING, |
| 1700 |
.help = "MAC address",
|
| 1701 |
}, {
|
| 1702 |
.name = "model",
|
| 1703 |
.type = QEMU_OPT_STRING, |
| 1704 |
.help = "device model (e1000, rtl8139, virtio etc.)",
|
| 1705 |
}, {
|
| 1706 |
.name = "addr",
|
| 1707 |
.type = QEMU_OPT_STRING, |
| 1708 |
.help = "PCI device address",
|
| 1709 |
}, {
|
| 1710 |
.name = "vectors",
|
| 1711 |
.type = QEMU_OPT_NUMBER, |
| 1712 |
.help = "number of MSI-x vectors, 0 to disable MSI-X",
|
| 1713 |
}, |
| 1714 |
{ /* end of list */ }
|
| 1715 |
}, |
| 1716 |
#ifdef CONFIG_SLIRP
|
| 1717 |
}, {
|
| 1718 |
.type = "user",
|
| 1719 |
.init = net_init_slirp, |
| 1720 |
.desc = {
|
| 1721 |
NET_COMMON_PARAMS_DESC, |
| 1722 |
{
|
| 1723 |
.name = "hostname",
|
| 1724 |
.type = QEMU_OPT_STRING, |
| 1725 |
.help = "client hostname reported by the builtin DHCP server",
|
| 1726 |
}, {
|
| 1727 |
.name = "restrict",
|
| 1728 |
.type = QEMU_OPT_STRING, |
| 1729 |
.help = "isolate the guest from the host (y|yes|n|no)",
|
| 1730 |
}, {
|
| 1731 |
.name = "ip",
|
| 1732 |
.type = QEMU_OPT_STRING, |
| 1733 |
.help = "legacy parameter, use net= instead",
|
| 1734 |
}, {
|
| 1735 |
.name = "net",
|
| 1736 |
.type = QEMU_OPT_STRING, |
| 1737 |
.help = "IP address and optional netmask",
|
| 1738 |
}, {
|
| 1739 |
.name = "host",
|
| 1740 |
.type = QEMU_OPT_STRING, |
| 1741 |
.help = "guest-visible address of the host",
|
| 1742 |
}, {
|
| 1743 |
.name = "tftp",
|
| 1744 |
.type = QEMU_OPT_STRING, |
| 1745 |
.help = "root directory of the built-in TFTP server",
|
| 1746 |
}, {
|
| 1747 |
.name = "bootfile",
|
| 1748 |
.type = QEMU_OPT_STRING, |
| 1749 |
.help = "BOOTP filename, for use with tftp=",
|
| 1750 |
}, {
|
| 1751 |
.name = "dhcpstart",
|
| 1752 |
.type = QEMU_OPT_STRING, |
| 1753 |
.help = "the first of the 16 IPs the built-in DHCP server can assign",
|
| 1754 |
}, {
|
| 1755 |
.name = "dns",
|
| 1756 |
.type = QEMU_OPT_STRING, |
| 1757 |
.help = "guest-visible address of the virtual nameserver",
|
| 1758 |
}, {
|
| 1759 |
.name = "smb",
|
| 1760 |
.type = QEMU_OPT_STRING, |
| 1761 |
.help = "root directory of the built-in SMB server",
|
| 1762 |
}, {
|
| 1763 |
.name = "smbserver",
|
| 1764 |
.type = QEMU_OPT_STRING, |
| 1765 |
.help = "IP address of the built-in SMB server",
|
| 1766 |
}, {
|
| 1767 |
.name = "hostfwd",
|
| 1768 |
.type = QEMU_OPT_STRING, |
| 1769 |
.help = "guest port number to forward incoming TCP or UDP connections",
|
| 1770 |
}, {
|
| 1771 |
.name = "guestfwd",
|
| 1772 |
.type = QEMU_OPT_STRING, |
| 1773 |
.help = "IP address and port to forward guest TCP connections",
|
| 1774 |
}, |
| 1775 |
{ /* end of list */ }
|
| 1776 |
}, |
| 1777 |
#endif
|
| 1778 |
}, {
|
| 1779 |
.type = "tap",
|
| 1780 |
.init = net_init_tap, |
| 1781 |
.desc = {
|
| 1782 |
NET_COMMON_PARAMS_DESC, |
| 1783 |
{
|
| 1784 |
.name = "ifname",
|
| 1785 |
.type = QEMU_OPT_STRING, |
| 1786 |
.help = "interface name",
|
| 1787 |
}, |
| 1788 |
#ifndef _WIN32
|
| 1789 |
{
|
| 1790 |
.name = "fd",
|
| 1791 |
.type = QEMU_OPT_STRING, |
| 1792 |
.help = "file descriptor of an already opened tap",
|
| 1793 |
}, {
|
| 1794 |
.name = "script",
|
| 1795 |
.type = QEMU_OPT_STRING, |
| 1796 |
.help = "script to initialize the interface",
|
| 1797 |
}, {
|
| 1798 |
.name = "downscript",
|
| 1799 |
.type = QEMU_OPT_STRING, |
| 1800 |
.help = "script to shut down the interface",
|
| 1801 |
}, {
|
| 1802 |
.name = "sndbuf",
|
| 1803 |
.type = QEMU_OPT_SIZE, |
| 1804 |
.help = "send buffer limit"
|
| 1805 |
}, {
|
| 1806 |
.name = "vnet_hdr",
|
| 1807 |
.type = QEMU_OPT_BOOL, |
| 1808 |
.help = "enable the IFF_VNET_HDR flag on the tap interface"
|
| 1809 |
}, |
| 1810 |
#endif /* _WIN32 */ |
| 1811 |
{ /* end of list */ }
|
| 1812 |
}, |
| 1813 |
}, {
|
| 1814 |
.type = "socket",
|
| 1815 |
.init = net_init_socket, |
| 1816 |
.desc = {
|
| 1817 |
NET_COMMON_PARAMS_DESC, |
| 1818 |
{
|
| 1819 |
.name = "fd",
|
| 1820 |
.type = QEMU_OPT_STRING, |
| 1821 |
.help = "file descriptor of an already opened socket",
|
| 1822 |
}, {
|
| 1823 |
.name = "listen",
|
| 1824 |
.type = QEMU_OPT_STRING, |
| 1825 |
.help = "port number, and optional hostname, to listen on",
|
| 1826 |
}, {
|
| 1827 |
.name = "connect",
|
| 1828 |
.type = QEMU_OPT_STRING, |
| 1829 |
.help = "port number, and optional hostname, to connect to",
|
| 1830 |
}, {
|
| 1831 |
.name = "mcast",
|
| 1832 |
.type = QEMU_OPT_STRING, |
| 1833 |
.help = "UDP multicast address and port number",
|
| 1834 |
}, |
| 1835 |
{ /* end of list */ }
|
| 1836 |
}, |
| 1837 |
#ifdef CONFIG_VDE
|
| 1838 |
}, {
|
| 1839 |
.type = "vde",
|
| 1840 |
.init = net_init_vde, |
| 1841 |
.desc = {
|
| 1842 |
NET_COMMON_PARAMS_DESC, |
| 1843 |
{
|
| 1844 |
.name = "sock",
|
| 1845 |
.type = QEMU_OPT_STRING, |
| 1846 |
.help = "socket path",
|
| 1847 |
}, {
|
| 1848 |
.name = "port",
|
| 1849 |
.type = QEMU_OPT_NUMBER, |
| 1850 |
.help = "port number",
|
| 1851 |
}, {
|
| 1852 |
.name = "group",
|
| 1853 |
.type = QEMU_OPT_STRING, |
| 1854 |
.help = "group owner of socket",
|
| 1855 |
}, {
|
| 1856 |
.name = "mode",
|
| 1857 |
.type = QEMU_OPT_NUMBER, |
| 1858 |
.help = "permissions for socket",
|
| 1859 |
}, |
| 1860 |
{ /* end of list */ }
|
| 1861 |
}, |
| 1862 |
#endif
|
| 1863 |
}, {
|
| 1864 |
.type = "dump",
|
| 1865 |
.init = net_init_dump, |
| 1866 |
.desc = {
|
| 1867 |
NET_COMMON_PARAMS_DESC, |
| 1868 |
{
|
| 1869 |
.name = "len",
|
| 1870 |
.type = QEMU_OPT_SIZE, |
| 1871 |
.help = "per-packet size limit (64k default)",
|
| 1872 |
}, {
|
| 1873 |
.name = "file",
|
| 1874 |
.type = QEMU_OPT_STRING, |
| 1875 |
.help = "dump file path (default is qemu-vlan0.pcap)",
|
| 1876 |
}, |
| 1877 |
{ /* end of list */ }
|
| 1878 |
}, |
| 1879 |
}, |
| 1880 |
{ /* end of list */ }
|
| 1881 |
}; |
| 1882 |
|
| 1883 |
int net_client_init(Monitor *mon, QemuOpts *opts, int is_netdev) |
| 1884 |
{
|
| 1885 |
const char *name; |
| 1886 |
const char *type; |
| 1887 |
int i;
|
| 1888 |
|
| 1889 |
type = qemu_opt_get(opts, "type");
|
| 1890 |
if (!type) {
|
| 1891 |
qemu_error("No type specified for -net\n");
|
| 1892 |
return -1; |
| 1893 |
} |
| 1894 |
|
| 1895 |
if (is_netdev) {
|
| 1896 |
if (strcmp(type, "tap") != 0 && |
| 1897 |
#ifdef CONFIG_SLIRP
|
| 1898 |
strcmp(type, "user") != 0 && |
| 1899 |
#endif
|
| 1900 |
#ifdef CONFIG_VDE
|
| 1901 |
strcmp(type, "vde") != 0 && |
| 1902 |
#endif
|
| 1903 |
strcmp(type, "socket") != 0) { |
| 1904 |
qemu_error("The '%s' network backend type is not valid with -netdev\n",
|
| 1905 |
type); |
| 1906 |
return -1; |
| 1907 |
} |
| 1908 |
|
| 1909 |
if (qemu_opt_get(opts, "vlan")) { |
| 1910 |
qemu_error("The 'vlan' parameter is not valid with -netdev\n");
|
| 1911 |
return -1; |
| 1912 |
} |
| 1913 |
if (qemu_opt_get(opts, "name")) { |
| 1914 |
qemu_error("The 'name' parameter is not valid with -netdev\n");
|
| 1915 |
return -1; |
| 1916 |
} |
| 1917 |
if (!qemu_opts_id(opts)) {
|
| 1918 |
qemu_error("The id= parameter is required with -netdev\n");
|
| 1919 |
return -1; |
| 1920 |
} |
| 1921 |
} |
| 1922 |
|
| 1923 |
name = qemu_opts_id(opts); |
| 1924 |
if (!name) {
|
| 1925 |
name = qemu_opt_get(opts, "name");
|
| 1926 |
} |
| 1927 |
|
| 1928 |
for (i = 0; net_client_types[i].type != NULL; i++) { |
| 1929 |
if (!strcmp(net_client_types[i].type, type)) {
|
| 1930 |
VLANState *vlan = NULL;
|
| 1931 |
|
| 1932 |
if (qemu_opts_validate(opts, &net_client_types[i].desc[0]) == -1) { |
| 1933 |
return -1; |
| 1934 |
} |
| 1935 |
|
| 1936 |
/* Do not add to a vlan if it's a -netdev or a nic with a
|
| 1937 |
* netdev= parameter. */
|
| 1938 |
if (!(is_netdev ||
|
| 1939 |
(strcmp(type, "nic") == 0 && qemu_opt_get(opts, "netdev")))) { |
| 1940 |
vlan = qemu_find_vlan(qemu_opt_get_number(opts, "vlan", 0), 1); |
| 1941 |
} |
| 1942 |
|
| 1943 |
if (net_client_types[i].init) {
|
| 1944 |
return net_client_types[i].init(opts, mon, name, vlan);
|
| 1945 |
} else {
|
| 1946 |
return 0; |
| 1947 |
} |
| 1948 |
} |
| 1949 |
} |
| 1950 |
|
| 1951 |
qemu_error("Invalid -net type '%s'\n", type);
|
| 1952 |
return -1; |
| 1953 |
} |
| 1954 |
|
| 1955 |
void net_client_uninit(NICInfo *nd)
|
| 1956 |
{
|
| 1957 |
if (nd->vlan) {
|
| 1958 |
nd->vlan->nb_guest_devs--; |
| 1959 |
} |
| 1960 |
nb_nics--; |
| 1961 |
|
| 1962 |
qemu_free(nd->model); |
| 1963 |
qemu_free(nd->name); |
| 1964 |
qemu_free(nd->devaddr); |
| 1965 |
|
| 1966 |
nd->used = 0;
|
| 1967 |
} |
| 1968 |
|
| 1969 |
static int net_host_check_device(const char *device) |
| 1970 |
{
|
| 1971 |
int i;
|
| 1972 |
const char *valid_param_list[] = { "tap", "socket", "dump" |
| 1973 |
#ifdef CONFIG_SLIRP
|
| 1974 |
,"user"
|
| 1975 |
#endif
|
| 1976 |
#ifdef CONFIG_VDE
|
| 1977 |
,"vde"
|
| 1978 |
#endif
|
| 1979 |
}; |
| 1980 |
for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { |
| 1981 |
if (!strncmp(valid_param_list[i], device,
|
| 1982 |
strlen(valid_param_list[i]))) |
| 1983 |
return 1; |
| 1984 |
} |
| 1985 |
|
| 1986 |
return 0; |
| 1987 |
} |
| 1988 |
|
| 1989 |
void net_host_device_add(Monitor *mon, const QDict *qdict) |
| 1990 |
{
|
| 1991 |
const char *device = qdict_get_str(qdict, "device"); |
| 1992 |
const char *opts_str = qdict_get_try_str(qdict, "opts"); |
| 1993 |
QemuOpts *opts; |
| 1994 |
|
| 1995 |
if (!net_host_check_device(device)) {
|
| 1996 |
monitor_printf(mon, "invalid host network device %s\n", device);
|
| 1997 |
return;
|
| 1998 |
} |
| 1999 |
|
| 2000 |
opts = qemu_opts_parse(&qemu_net_opts, opts_str ? opts_str : "", NULL); |
| 2001 |
if (!opts) {
|
| 2002 |
monitor_printf(mon, "parsing network options '%s' failed\n",
|
| 2003 |
opts_str ? opts_str : "");
|
| 2004 |
return;
|
| 2005 |
} |
| 2006 |
|
| 2007 |
qemu_opt_set(opts, "type", device);
|
| 2008 |
|
| 2009 |
if (net_client_init(mon, opts, 0) < 0) { |
| 2010 |
monitor_printf(mon, "adding host network device %s failed\n", device);
|
| 2011 |
} |
| 2012 |
} |
| 2013 |
|
| 2014 |
void net_host_device_remove(Monitor *mon, const QDict *qdict) |
| 2015 |
{
|
| 2016 |
VLANClientState *vc; |
| 2017 |
int vlan_id = qdict_get_int(qdict, "vlan_id"); |
| 2018 |
const char *device = qdict_get_str(qdict, "device"); |
| 2019 |
|
| 2020 |
vc = qemu_find_vlan_client_by_name(mon, vlan_id, device); |
| 2021 |
if (!vc) {
|
| 2022 |
return;
|
| 2023 |
} |
| 2024 |
if (!net_host_check_device(vc->model)) {
|
| 2025 |
monitor_printf(mon, "invalid host network device %s\n", device);
|
| 2026 |
return;
|
| 2027 |
} |
| 2028 |
qemu_del_vlan_client(vc); |
| 2029 |
} |
| 2030 |
|
| 2031 |
void net_set_boot_mask(int net_boot_mask) |
| 2032 |
{
|
| 2033 |
int i;
|
| 2034 |
|
| 2035 |
/* Only the first four NICs may be bootable */
|
| 2036 |
net_boot_mask = net_boot_mask & 0xF;
|
| 2037 |
|
| 2038 |
for (i = 0; i < nb_nics; i++) { |
| 2039 |
if (net_boot_mask & (1 << i)) { |
| 2040 |
nd_table[i].bootable = 1;
|
| 2041 |
net_boot_mask &= ~(1 << i);
|
| 2042 |
} |
| 2043 |
} |
| 2044 |
|
| 2045 |
if (net_boot_mask) {
|
| 2046 |
fprintf(stderr, "Cannot boot from non-existent NIC\n");
|
| 2047 |
exit(1);
|
| 2048 |
} |
| 2049 |
} |
| 2050 |
|
| 2051 |
void do_info_network(Monitor *mon)
|
| 2052 |
{
|
| 2053 |
VLANState *vlan; |
| 2054 |
|
| 2055 |
QTAILQ_FOREACH(vlan, &vlans, next) {
|
| 2056 |
VLANClientState *vc; |
| 2057 |
|
| 2058 |
monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
|
| 2059 |
|
| 2060 |
QTAILQ_FOREACH(vc, &vlan->clients, next) {
|
| 2061 |
monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
|
| 2062 |
} |
| 2063 |
} |
| 2064 |
} |
| 2065 |
|
| 2066 |
void do_set_link(Monitor *mon, const QDict *qdict) |
| 2067 |
{
|
| 2068 |
VLANState *vlan; |
| 2069 |
VLANClientState *vc = NULL;
|
| 2070 |
const char *name = qdict_get_str(qdict, "name"); |
| 2071 |
const char *up_or_down = qdict_get_str(qdict, "up_or_down"); |
| 2072 |
|
| 2073 |
QTAILQ_FOREACH(vlan, &vlans, next) {
|
| 2074 |
QTAILQ_FOREACH(vc, &vlan->clients, next) {
|
| 2075 |
if (strcmp(vc->name, name) == 0) { |
| 2076 |
goto done;
|
| 2077 |
} |
| 2078 |
} |
| 2079 |
} |
| 2080 |
done:
|
| 2081 |
|
| 2082 |
if (!vc) {
|
| 2083 |
monitor_printf(mon, "could not find network device '%s'\n", name);
|
| 2084 |
return;
|
| 2085 |
} |
| 2086 |
|
| 2087 |
if (strcmp(up_or_down, "up") == 0) |
| 2088 |
vc->link_down = 0;
|
| 2089 |
else if (strcmp(up_or_down, "down") == 0) |
| 2090 |
vc->link_down = 1;
|
| 2091 |
else
|
| 2092 |
monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
|
| 2093 |
"valid\n", up_or_down);
|
| 2094 |
|
| 2095 |
if (vc->link_status_changed)
|
| 2096 |
vc->link_status_changed(vc); |
| 2097 |
} |
| 2098 |
|
| 2099 |
void net_cleanup(void) |
| 2100 |
{
|
| 2101 |
VLANState *vlan; |
| 2102 |
VLANClientState *vc, *next_vc; |
| 2103 |
|
| 2104 |
QTAILQ_FOREACH(vlan, &vlans, next) {
|
| 2105 |
QTAILQ_FOREACH_SAFE(vc, &vlan->clients, next, next_vc) {
|
| 2106 |
qemu_del_vlan_client(vc); |
| 2107 |
} |
| 2108 |
} |
| 2109 |
|
| 2110 |
QTAILQ_FOREACH_SAFE(vc, &non_vlan_clients, next, next_vc) {
|
| 2111 |
qemu_del_vlan_client(vc); |
| 2112 |
} |
| 2113 |
} |
| 2114 |
|
| 2115 |
static void net_check_clients(void) |
| 2116 |
{
|
| 2117 |
VLANState *vlan; |
| 2118 |
|
| 2119 |
QTAILQ_FOREACH(vlan, &vlans, next) {
|
| 2120 |
if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0) |
| 2121 |
continue;
|
| 2122 |
if (vlan->nb_guest_devs == 0) |
| 2123 |
fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
|
| 2124 |
if (vlan->nb_host_devs == 0) |
| 2125 |
fprintf(stderr, |
| 2126 |
"Warning: vlan %d is not connected to host network\n",
|
| 2127 |
vlan->id); |
| 2128 |
} |
| 2129 |
} |
| 2130 |
|
| 2131 |
static int net_init_client(QemuOpts *opts, void *dummy) |
| 2132 |
{
|
| 2133 |
if (net_client_init(NULL, opts, 0) < 0) |
| 2134 |
return -1; |
| 2135 |
return 0; |
| 2136 |
} |
| 2137 |
|
| 2138 |
static int net_init_netdev(QemuOpts *opts, void *dummy) |
| 2139 |
{
|
| 2140 |
return net_client_init(NULL, opts, 1); |
| 2141 |
} |
| 2142 |
|
| 2143 |
int net_init_clients(void) |
| 2144 |
{
|
| 2145 |
if (QTAILQ_EMPTY(&qemu_net_opts.head)) {
|
| 2146 |
/* if no clients, we use a default config */
|
| 2147 |
qemu_opts_set(&qemu_net_opts, NULL, "type", "nic"); |
| 2148 |
#ifdef CONFIG_SLIRP
|
| 2149 |
qemu_opts_set(&qemu_net_opts, NULL, "type", "user"); |
| 2150 |
#endif
|
| 2151 |
} |
| 2152 |
|
| 2153 |
QTAILQ_INIT(&vlans); |
| 2154 |
QTAILQ_INIT(&non_vlan_clients); |
| 2155 |
|
| 2156 |
if (qemu_opts_foreach(&qemu_netdev_opts, net_init_netdev, NULL, 1) == -1) |
| 2157 |
return -1; |
| 2158 |
|
| 2159 |
if (qemu_opts_foreach(&qemu_net_opts, net_init_client, NULL, 1) == -1) { |
| 2160 |
return -1; |
| 2161 |
} |
| 2162 |
|
| 2163 |
net_check_clients(); |
| 2164 |
|
| 2165 |
return 0; |
| 2166 |
} |
| 2167 |
|
| 2168 |
int net_client_parse(QemuOptsList *opts_list, const char *optarg) |
| 2169 |
{
|
| 2170 |
#if defined(CONFIG_SLIRP)
|
| 2171 |
int ret;
|
| 2172 |
if (net_slirp_parse_legacy(opts_list, optarg, &ret)) {
|
| 2173 |
return ret;
|
| 2174 |
} |
| 2175 |
#endif
|
| 2176 |
|
| 2177 |
if (!qemu_opts_parse(opts_list, optarg, "type")) { |
| 2178 |
return -1; |
| 2179 |
} |
| 2180 |
|
| 2181 |
return 0; |
| 2182 |
} |