diff options
Diffstat (limited to 'vl.c')
| -rw-r--r-- | vl.c | 1472 |
1 files changed, 10 insertions, 1462 deletions
@@ -210,7 +210,6 @@ CharDriverState *parallel_hds[MAX_PARALLEL_PORTS]; int win2k_install_hack = 0; #endif int usb_enabled = 0; -static VLANState *first_vlan; int smp_cpus = 1; const char *vnc_display; int acpi_enabled = 1; @@ -1757,1244 +1756,7 @@ static int socket_init(void) } #endif -/***********************************************************/ -/* network device redirectors */ - - -#if defined(DEBUG_NET) || defined(DEBUG_SLIRP) -static void hex_dump(FILE *f, const uint8_t *buf, int size) -{ - int len, i, j, c; - - for(i=0;i<size;i+=16) { - len = size - i; - if (len > 16) - len = 16; - fprintf(f, "%08x ", i); - for(j=0;j<16;j++) { - if (j < len) - fprintf(f, " %02x", buf[i+j]); - else - fprintf(f, " "); - } - fprintf(f, " "); - for(j=0;j<len;j++) { - c = buf[i+j]; - if (c < ' ' || c > '~') - c = '.'; - fprintf(f, "%c", c); - } - fprintf(f, "\n"); - } -} -#endif - -static int parse_macaddr(uint8_t *macaddr, const char *p) -{ - int i; - char *last_char; - long int offset; - - errno = 0; - offset = strtol(p, &last_char, 0); - if (0 == errno && '\0' == *last_char && - offset >= 0 && offset <= 0xFFFFFF) { - macaddr[3] = (offset & 0xFF0000) >> 16; - macaddr[4] = (offset & 0xFF00) >> 8; - macaddr[5] = offset & 0xFF; - return 0; - } else { - for(i = 0; i < 6; i++) { - macaddr[i] = strtol(p, (char **)&p, 16); - if (i == 5) { - if (*p != '\0') - return -1; - } else { - if (*p != ':' && *p != '-') - return -1; - p++; - } - } - return 0; - } - - return -1; -} - -static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) -{ - const char *p, *p1; - int len; - p = *pp; - p1 = strchr(p, sep); - if (!p1) - return -1; - len = p1 - p; - p1++; - if (buf_size > 0) { - if (len > buf_size - 1) - len = buf_size - 1; - memcpy(buf, p, len); - buf[len] = '\0'; - } - *pp = p1; - return 0; -} - -int parse_host_src_port(struct sockaddr_in *haddr, - struct sockaddr_in *saddr, - const char *input_str) -{ - char *str = strdup(input_str); - char *host_str = str; - char *src_str; - const char *src_str2; - char *ptr; - - /* - * Chop off any extra arguments at the end of the string which - * would start with a comma, then fill in the src port information - * if it was provided else use the "any address" and "any port". - */ - if ((ptr = strchr(str,','))) - *ptr = '\0'; - - if ((src_str = strchr(input_str,'@'))) { - *src_str = '\0'; - src_str++; - } - - if (parse_host_port(haddr, host_str) < 0) - goto fail; - - src_str2 = src_str; - if (!src_str || *src_str == '\0') - src_str2 = ":0"; - - if (parse_host_port(saddr, src_str2) < 0) - goto fail; - - free(str); - return(0); - -fail: - free(str); - return -1; -} - -int parse_host_port(struct sockaddr_in *saddr, const char *str) -{ - char buf[512]; - struct hostent *he; - const char *p, *r; - int port; - - p = str; - if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) - return -1; - saddr->sin_family = AF_INET; - if (buf[0] == '\0') { - saddr->sin_addr.s_addr = 0; - } else { - if (isdigit(buf[0])) { - if (!inet_aton(buf, &saddr->sin_addr)) - return -1; - } else { - if ((he = gethostbyname(buf)) == NULL) - return - 1; - saddr->sin_addr = *(struct in_addr *)he->h_addr; - } - } - port = strtol(p, (char **)&r, 0); - if (r == p) - return -1; - saddr->sin_port = htons(port); - return 0; -} - -#ifndef _WIN32 -int parse_unix_path(struct sockaddr_un *uaddr, const char *str) -{ - const char *p; - int len; - - len = MIN(108, strlen(str)); - p = strchr(str, ','); - if (p) - len = MIN(len, p - str); - - memset(uaddr, 0, sizeof(*uaddr)); - - uaddr->sun_family = AF_UNIX; - memcpy(uaddr->sun_path, str, len); - - return 0; -} -#endif - -/* find or alloc a new VLAN */ -VLANState *qemu_find_vlan(int id) -{ - VLANState **pvlan, *vlan; - for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { - if (vlan->id == id) - return vlan; - } - vlan = qemu_mallocz(sizeof(VLANState)); - if (!vlan) - return NULL; - vlan->id = id; - vlan->next = NULL; - pvlan = &first_vlan; - while (*pvlan != NULL) - pvlan = &(*pvlan)->next; - *pvlan = vlan; - return vlan; -} - -VLANClientState *qemu_new_vlan_client(VLANState *vlan, - IOReadHandler *fd_read, - IOCanRWHandler *fd_can_read, - void *opaque) -{ - VLANClientState *vc, **pvc; - vc = qemu_mallocz(sizeof(VLANClientState)); - if (!vc) - return NULL; - vc->fd_read = fd_read; - vc->fd_can_read = fd_can_read; - vc->opaque = opaque; - vc->vlan = vlan; - - vc->next = NULL; - pvc = &vlan->first_client; - while (*pvc != NULL) - pvc = &(*pvc)->next; - *pvc = vc; - return vc; -} - -void qemu_del_vlan_client(VLANClientState *vc) -{ - VLANClientState **pvc = &vc->vlan->first_client; - - while (*pvc != NULL) - if (*pvc == vc) { - *pvc = vc->next; - free(vc); - break; - } else - pvc = &(*pvc)->next; -} - -int qemu_can_send_packet(VLANClientState *vc1) -{ - VLANState *vlan = vc1->vlan; - VLANClientState *vc; - - for(vc = vlan->first_client; vc != NULL; vc = vc->next) { - if (vc != vc1) { - if (vc->fd_can_read && vc->fd_can_read(vc->opaque)) - return 1; - } - } - return 0; -} - -void qemu_send_packet(VLANClientState *vc1, const uint8_t *buf, int size) -{ - VLANState *vlan = vc1->vlan; - VLANClientState *vc; - -#ifdef DEBUG_NET - printf("vlan %d send:\n", vlan->id); - hex_dump(stdout, buf, size); -#endif - for(vc = vlan->first_client; vc != NULL; vc = vc->next) { - if (vc != vc1) { - vc->fd_read(vc->opaque, buf, size); - } - } -} - -#if defined(CONFIG_SLIRP) - -/* slirp network adapter */ - -static int slirp_inited; -static VLANClientState *slirp_vc; - -int slirp_can_output(void) -{ - return !slirp_vc || qemu_can_send_packet(slirp_vc); -} - -void slirp_output(const uint8_t *pkt, int pkt_len) -{ -#ifdef DEBUG_SLIRP - printf("slirp output:\n"); - hex_dump(stdout, pkt, pkt_len); -#endif - if (!slirp_vc) - return; - qemu_send_packet(slirp_vc, pkt, pkt_len); -} - -static void slirp_receive(void *opaque, const uint8_t *buf, int size) -{ -#ifdef DEBUG_SLIRP - printf("slirp input:\n"); - hex_dump(stdout, buf, size); -#endif - slirp_input(buf, size); -} - -static int net_slirp_init(VLANState *vlan) -{ - if (!slirp_inited) { - slirp_inited = 1; - slirp_init(); - } - slirp_vc = qemu_new_vlan_client(vlan, - slirp_receive, NULL, NULL); - snprintf(slirp_vc->info_str, sizeof(slirp_vc->info_str), "user redirector"); - return 0; -} - -static void net_slirp_redir(const char *redir_str) -{ - int is_udp; - char buf[256], *r; - const char *p; - struct in_addr guest_addr; - int host_port, guest_port; - - if (!slirp_inited) { - slirp_inited = 1; - slirp_init(); - } - - p = redir_str; - if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) - goto fail; - if (!strcmp(buf, "tcp")) { - is_udp = 0; - } else if (!strcmp(buf, "udp")) { - is_udp = 1; - } else { - goto fail; - } - - if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) - goto fail; - host_port = strtol(buf, &r, 0); - if (r == buf) - goto fail; - - if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) - goto fail; - if (buf[0] == '\0') { - pstrcpy(buf, sizeof(buf), "10.0.2.15"); - } - if (!inet_aton(buf, &guest_addr)) - goto fail; - - guest_port = strtol(p, &r, 0); - if (r == p) - goto fail; - - if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) { - fprintf(stderr, "qemu: could not set up redirection\n"); - exit(1); - } - return; - fail: - fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n"); - exit(1); -} - -#ifndef _WIN32 - -static char smb_dir[1024]; - -static void erase_dir(char *dir_name) -{ - DIR *d; - struct dirent *de; - char filename[1024]; - - /* erase all the files in the directory */ - if ((d = opendir(dir_name)) != 0) { - for(;;) { - de = readdir(d); - if (!de) - break; - if (strcmp(de->d_name, ".") != 0 && - strcmp(de->d_name, "..") != 0) { - snprintf(filename, sizeof(filename), "%s/%s", - smb_dir, de->d_name); - if (unlink(filename) != 0) /* is it a directory? */ - erase_dir(filename); - } - } - closedir(d); - rmdir(dir_name); - } -} - -/* automatic user mode samba server configuration */ -static void smb_exit(void) -{ - erase_dir(smb_dir); -} - -/* automatic user mode samba server configuration */ -static void net_slirp_smb(const char *exported_dir) -{ - char smb_conf[1024]; - char smb_cmdline[1024]; - FILE *f; - - if (!slirp_inited) { - slirp_inited = 1; - slirp_init(); - } - - /* XXX: better tmp dir construction */ - snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%d", getpid()); - if (mkdir(smb_dir, 0700) < 0) { - fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir); - exit(1); - } - snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf"); - - f = fopen(smb_conf, "w"); - if (!f) { - fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf); - exit(1); - } - fprintf(f, - "[global]\n" - "private dir=%s\n" - "smb ports=0\n" - "socket address=127.0.0.1\n" - "pid directory=%s\n" - "lock directory=%s\n" - "log file=%s/log.smbd\n" - "smb passwd file=%s/smbpasswd\n" - "security = share\n" - "[qemu]\n" - "path=%s\n" - "read only=no\n" - "guest ok=yes\n", - smb_dir, - smb_dir, - smb_dir, - smb_dir, - smb_dir, - exported_dir - ); - fclose(f); - atexit(smb_exit); - - snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s", - SMBD_COMMAND, smb_conf); - - slirp_add_exec(0, smb_cmdline, 4, 139); -} - -#endif /* !defined(_WIN32) */ -void do_info_slirp(void) -{ - slirp_stats(); -} - -#endif /* CONFIG_SLIRP */ - -#if !defined(_WIN32) - -typedef struct TAPState { - VLANClientState *vc; - int fd; - char down_script[1024]; -} TAPState; - -static void tap_receive(void *opaque, const uint8_t *buf, int size) -{ - TAPState *s = opaque; - int ret; - for(;;) { - ret = write(s->fd, buf, size); - if (ret < 0 && (errno == EINTR || errno == EAGAIN)) { - } else { - break; - } - } -} - -static void tap_send(void *opaque) -{ - TAPState *s = opaque; - uint8_t buf[4096]; - int size; - -#ifdef __sun__ - struct strbuf sbuf; - int f = 0; - sbuf.maxlen = sizeof(buf); - sbuf.buf = buf; - size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1; -#else - size = read(s->fd, buf, sizeof(buf)); -#endif - if (size > 0) { - qemu_send_packet(s->vc, buf, size); - } -} - -/* fd support */ - -static TAPState *net_tap_fd_init(VLANState *vlan, int fd) -{ - TAPState *s; - - s = qemu_mallocz(sizeof(TAPState)); - if (!s) - return NULL; - s->fd = fd; - s->vc = qemu_new_vlan_client(vlan, tap_receive, NULL, s); - qemu_set_fd_handler(s->fd, tap_send, NULL, s); - snprintf(s->vc->info_str, sizeof(s->vc->info_str), "tap: fd=%d", fd); - return s; -} - -#if defined (_BSD) || defined (__FreeBSD_kernel__) -static int tap_open(char *ifname, int ifname_size) -{ - int fd; - char *dev; - struct stat s; - - TFR(fd = open("/dev/tap", O_RDWR)); - if (fd < 0) { - fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n"); - return -1; - } - - fstat(fd, &s); - dev = devname(s.st_rdev, S_IFCHR); - pstrcpy(ifname, ifname_size, dev); - - fcntl(fd, F_SETFL, O_NONBLOCK); - return fd; -} -#elif defined(__sun__) -#define TUNNEWPPA (('T'<<16) | 0x0001) -/* - * Allocate TAP device, returns opened fd. - * Stores dev name in the first arg(must be large enough). - */ -int tap_alloc(char *dev, size_t dev_size) -{ - int tap_fd, if_fd, ppa = -1; - static int ip_fd = 0; - char *ptr; - - static int arp_fd = 0; - int ip_muxid, arp_muxid; - struct strioctl strioc_if, strioc_ppa; - int link_type = I_PLINK;; - struct lifreq ifr; - char actual_name[32] = ""; - - memset(&ifr, 0x0, sizeof(ifr)); - - if( *dev ){ - ptr = dev; - while( *ptr && !isdigit((int)*ptr) ) ptr++; - ppa = atoi(ptr); - } - - /* Check if IP device was opened */ - if( ip_fd ) - close(ip_fd); - - TFR(ip_fd = open("/dev/udp", O_RDWR, 0)); - if (ip_fd < 0) { - syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)"); - return -1; - } - - TFR(tap_fd = open("/dev/tap", O_RDWR, 0)); - if (tap_fd < 0) { - syslog(LOG_ERR, "Can't open /dev/tap"); - return -1; - } - - /* Assign a new PPA and get its unit number. */ - strioc_ppa.ic_cmd = TUNNEWPPA; - strioc_ppa.ic_timout = 0; - strioc_ppa.ic_len = sizeof(ppa); - strioc_ppa.ic_dp = (char *)&ppa; - if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0) - syslog (LOG_ERR, "Can't assign new interface"); - - TFR(if_fd = open("/dev/tap", O_RDWR, 0)); - if (if_fd < 0) { - syslog(LOG_ERR, "Can't open /dev/tap (2)"); - return -1; - } - if(ioctl(if_fd, I_PUSH, "ip") < 0){ - syslog(LOG_ERR, "Can't push IP module"); - return -1; - } - - if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0) - syslog(LOG_ERR, "Can't get flags\n"); - - snprintf (actual_name, 32, "tap%d", ppa); - pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name); - - ifr.lifr_ppa = ppa; - /* Assign ppa according to the unit number returned by tun device */ - - if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0) - syslog (LOG_ERR, "Can't set PPA %d", ppa); - if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0) - syslog (LOG_ERR, "Can't get flags\n"); - /* Push arp module to if_fd */ - if (ioctl (if_fd, I_PUSH, "arp") < 0) - syslog (LOG_ERR, "Can't push ARP module (2)"); - - /* Push arp module to ip_fd */ - if (ioctl (ip_fd, I_POP, NULL) < 0) - syslog (LOG_ERR, "I_POP failed\n"); - if (ioctl (ip_fd, I_PUSH, "arp") < 0) - syslog (LOG_ERR, "Can't push ARP module (3)\n"); - /* Open arp_fd */ - TFR(arp_fd = open ("/dev/tap", O_RDWR, 0)); - if (arp_fd < 0) - syslog (LOG_ERR, "Can't open %s\n", "/dev/tap"); - - /* Set ifname to arp */ - strioc_if.ic_cmd = SIOCSLIFNAME; - strioc_if.ic_timout = 0; - strioc_if.ic_len = sizeof(ifr); - strioc_if.ic_dp = (char *)𝔦 - if (ioctl(arp_fd, I_STR, &strioc_if) < 0){ - syslog (LOG_ERR, "Can't set ifname to arp\n"); - } - - if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){ - syslog(LOG_ERR, "Can't link TAP device to IP"); - return -1; - } - - if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0) - syslog (LOG_ERR, "Can't link TAP device to ARP"); - - close (if_fd); - - memset(&ifr, 0x0, sizeof(ifr)); - pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name); - ifr.lifr_ip_muxid = ip_muxid; - ifr.lifr_arp_muxid = arp_muxid; - - if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0) - { - ioctl (ip_fd, I_PUNLINK , arp_muxid); - ioctl (ip_fd, I_PUNLINK, ip_muxid); - syslog (LOG_ERR, "Can't set multiplexor id"); - } - - snprintf(dev, dev_size, "tap%d", ppa); - return tap_fd; -} - -static int tap_open(char *ifname, int ifname_size) -{ - char dev[10]=""; - int fd; - if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){ - fprintf(stderr, "Cannot allocate TAP device\n"); - return -1; - } - pstrcpy(ifname, ifname_size, dev); - fcntl(fd, F_SETFL, O_NONBLOCK); - return fd; -} -#else -static int tap_open(char *ifname, int ifname_size) -{ - struct ifreq ifr; - int fd, ret; - - TFR(fd = open("/dev/net/tun", O_RDWR)); - if (fd < 0) { - fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n"); - return -1; - } - memset(&ifr, 0, sizeof(ifr)); - ifr.ifr_flags = IFF_TAP | IFF_NO_PI; - if (ifname[0] != '\0') - pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname); - else - pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d"); - ret = ioctl(fd, TUNSETIFF, (void *) &ifr); - if (ret != 0) { - fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n"); - close(fd); - return -1; - } - pstrcpy(ifname, ifname_size, ifr.ifr_name); - fcntl(fd, F_SETFL, O_NONBLOCK); - return fd; -} -#endif - -static int launch_script(const char *setup_script, const char *ifname, int fd) -{ - int pid, status; - char *args[3]; - char **parg; - - /* try to launch network script */ - pid = fork(); - if (pid >= 0) { - if (pid == 0) { - int open_max = sysconf (_SC_OPEN_MAX), i; - for (i = 0; i < open_max; i++) - if (i != STDIN_FILENO && - i != STDOUT_FILENO && - i != STDERR_FILENO && - i != fd) - close(i); - - parg = args; - *parg++ = (char *)setup_script; - *parg++ = (char *)ifname; - *parg++ = NULL; - execv(setup_script, args); - _exit(1); - } - while (waitpid(pid, &status, 0) != pid); - if (!WIFEXITED(status) || - WEXITSTATUS(status) != 0) { - fprintf(stderr, "%s: could not launch network script\n", - setup_script); - return -1; - } - } - return 0; -} - -static int net_tap_init(VLANState *vlan, const char *ifname1, - const char *setup_script, const char *down_script) -{ - TAPState *s; - int fd; - char ifname[128]; - - if (ifname1 != NULL) - pstrcpy(ifname, sizeof(ifname), ifname1); - else - ifname[0] = '\0'; - TFR(fd = tap_open(ifname, sizeof(ifname))); - if (fd < 0) - return -1; - - if (!setup_script || !strcmp(setup_script, "no")) - setup_script = ""; - if (setup_script[0] != '\0') { - if (launch_script(setup_script, ifname, fd)) - return -1; - } - s = net_tap_fd_init(vlan, fd); - if (!s) - return -1; - snprintf(s->vc->info_str, sizeof(s->vc->info_str), - "tap: ifname=%s setup_script=%s", ifname, setup_script); - if (down_script && strcmp(down_script, "no")) - snprintf(s->down_script, sizeof(s->down_script), "%s", down_script); - return 0; -} - -#endif /* !_WIN32 */ - -#if defined(CONFIG_VDE) -typedef struct VDEState { - VLANClientState *vc; - VDECONN *vde; -} VDEState; - -static void vde_to_qemu(void *opaque) -{ - VDEState *s = opaque; - uint8_t buf[4096]; - int size; - - size = vde_recv(s->vde, buf, sizeof(buf), 0); - if (size > 0) { - qemu_send_packet(s->vc, buf, size); - } -} - -static void vde_from_qemu(void *opaque, const uint8_t *buf, int size) -{ - VDEState *s = opaque; - int ret; - for(;;) { - ret = vde_send(s->vde, buf, size, 0); - if (ret < 0 && errno == EINTR) { - } else { - break; - } - } -} - -static int net_vde_init(VLANState *vlan, const char *sock, int port, - const char *group, int mode) -{ - VDEState *s; - char *init_group = strlen(group) ? (char *)group : NULL; - char *init_sock = strlen(sock) ? (char *)sock : NULL; - - struct vde_open_args args = { - .port = port, - .group = init_group, - .mode = mode, - }; - - s = qemu_mallocz(sizeof(VDEState)); - if (!s) - return -1; - s->vde = vde_open(init_sock, "QEMU", &args); - if (!s->vde){ - free(s); - return -1; - } - s->vc = qemu_new_vlan_client(vlan, vde_from_qemu, NULL, s); - qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s); - snprintf(s->vc->info_str, sizeof(s->vc->info_str), "vde: sock=%s fd=%d", - sock, vde_datafd(s->vde)); - return 0; -} -#endif - -/* network connection */ -typedef struct NetSocketState { - VLANClientState *vc; - int fd; - int state; /* 0 = getting length, 1 = getting data */ - int index; - int packet_len; - uint8_t buf[4096]; - struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ -} NetSocketState; - -typedef struct NetSocketListenState { - VLANState *vlan; - int fd; -} NetSocketListenState; - -/* XXX: we consider we can send the whole packet without blocking */ -static void net_socket_receive(void *opaque, const uint8_t *buf, int size) -{ - NetSocketState *s = opaque; - uint32_t len; - len = htonl(size); - - send_all(s->fd, (const uint8_t *)&len, sizeof(len)); - send_all(s->fd, buf, size); -} - -static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size) -{ - NetSocketState *s = opaque; - sendto(s->fd, buf, size, 0, - (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst)); -} - -static void net_socket_send(void *opaque) -{ - NetSocketState *s = opaque; - int l, size, err; - uint8_t buf1[4096]; - const uint8_t *buf; - - size = recv(s->fd, buf1, sizeof(buf1), 0); - if (size < 0) { - err = socket_error(); - if (err != EWOULDBLOCK) - goto eoc; - } else if (size == 0) { - /* end of connection */ - eoc: - qemu_set_fd_handler(s->fd, NULL, NULL, NULL); - closesocket(s->fd); - return; - } - buf = buf1; - while (size > 0) { - /* reassemble a packet from the network */ - switch(s->state) { - case 0: - l = 4 - s->index; - if (l > size) - l = size; - memcpy(s->buf + s->index, buf, l); - buf += l; - size -= l; - s->index += l; - if (s->index == 4) { - /* got length */ - s->packet_len = ntohl(*(uint32_t *)s->buf); - s->index = 0; - s->state = 1; - } - break; - case 1: - l = s->packet_len - s->index; - if (l > size) - l = size; - memcpy(s->buf + s->index, buf, l); - s->index += l; - buf += l; - size -= l; - if (s->index >= s->packet_len) { - qemu_send_packet(s->vc, s->buf, s->packet_len); - s->index = 0; - s->state = 0; - } - break; - } - } -} - -static void net_socket_send_dgram(void *opaque) -{ - NetSocketState *s = opaque; - int size; - - size = recv(s->fd, s->buf, sizeof(s->buf), 0); - if (size < 0) - return; - if (size == 0) { - /* end of connection */ - qemu_set_fd_handler(s->fd, NULL, NULL, NULL); - return; - } - qemu_send_packet(s->vc, s->buf, size); -} - -static int net_socket_mcast_create(struct sockaddr_in *mcastaddr) -{ - struct ip_mreq imr; - int fd; - int val, ret; - if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) { - fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n", - inet_ntoa(mcastaddr->sin_addr), - (int)ntohl(mcastaddr->sin_addr.s_addr)); - return -1; - - } - fd = socket(PF_INET, SOCK_DGRAM, 0); - if (fd < 0) { - perror("socket(PF_INET, SOCK_DGRAM)"); - return -1; - } - - val = 1; - ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, - (const char *)&val, sizeof(val)); - if (ret < 0) { - perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)"); - goto fail; - } - - ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); - if (ret < 0) { - perror("bind"); - goto fail; - } - - /* Add host to multicast group */ - imr.imr_multiaddr = mcastaddr->sin_addr; - imr.imr_interface.s_addr = htonl(INADDR_ANY); - - ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, - (const char *)&imr, sizeof(struct ip_mreq)); - if (ret < 0) { - perror("setsockopt(IP_ADD_MEMBERSHIP)"); - goto fail; - } - - /* Force mcast msgs to loopback (eg. several QEMUs in same host */ - val = 1; - ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, - (const char *)&val, sizeof(val)); - if (ret < 0) { - perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)"); - goto fail; - } - - socket_set_nonblock(fd); - return fd; -fail: - if (fd >= 0) - closesocket(fd); - return -1; -} - -static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan, int fd, - int is_connected) -{ - struct sockaddr_in saddr; - int newfd; - socklen_t saddr_len; - NetSocketState *s; - - /* fd passed: multicast: "learn" dgram_dst address from bound address and save it - * Because this may be "shared" socket from a "master" process, datagrams would be recv() - * by ONLY ONE process: we must "clone" this dgram socket --jjo - */ - - if (is_connected) { - if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) { - /* must be bound */ - if (saddr.sin_addr.s_addr==0) { - fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n", - fd); - return NULL; - } - /* clone dgram socket */ - newfd = net_socket_mcast_create(&saddr); - if (newfd < 0) { - /* error already reported by net_socket_mcast_create() */ - close(fd); - return NULL; - } - /* clone newfd to fd, close newfd */ - dup2(newfd, fd); - close(newfd); - - } else { - fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n", - fd, strerror(errno)); - return NULL; - } - } - - s = qemu_mallocz(sizeof(NetSocketState)); - if (!s) - return NULL; - s->fd = fd; - - s->vc = qemu_new_vlan_client(vlan, net_socket_receive_dgram, NULL, s); - qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s); - - /* mcast: save bound address as dst */ - if (is_connected) s->dgram_dst=saddr; - - snprintf(s->vc->info_str, sizeof(s->vc->info_str), - "socket: fd=%d (%s mcast=%s:%d)", - fd, is_connected? "cloned" : "", - inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); - return s; -} - -static void net_socket_connect(void *opaque) -{ - NetSocketState *s = opaque; - qemu_set_fd_handler(s->fd, net_socket_send, NULL, s); -} - -static NetSocketState *net_socket_fd_init_stream(VLANState *vlan, int fd, - int is_connected) -{ - NetSocketState *s; - s = qemu_mallocz(sizeof(NetSocketState)); - if (!s) - return NULL; - s->fd = fd; - s->vc = qemu_new_vlan_client(vlan, - net_socket_receive, NULL, s); - snprintf(s->vc->info_str, sizeof(s->vc->info_str), - "socket: fd=%d", fd); - if (is_connected) { - net_socket_connect(s); - } else { - qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s); - } - return s; -} - -static NetSocketState *net_socket_fd_init(VLANState *vlan, int fd, - int is_connected) -{ - int so_type=-1, optlen=sizeof(so_type); - - if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, - (socklen_t *)&optlen)< 0) { - fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd); - return NULL; - } - switch(so_type) { - case SOCK_DGRAM: - return net_socket_fd_init_dgram(vlan, fd, is_connected); - case SOCK_STREAM: - return net_socket_fd_init_stream(vlan, fd, is_connected); - default: - /* who knows ... this could be a eg. a pty, do warn and continue as stream */ - fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd); - return net_socket_fd_init_stream(vlan, fd, is_connected); - } - return NULL; -} - -static void net_socket_accept(void *opaque) -{ - NetSocketListenState *s = opaque; - NetSocketState *s1; - struct sockaddr_in saddr; - socklen_t len; - int fd; - - for(;;) { - len = sizeof(saddr); - fd = accept(s->fd, (struct sockaddr *)&saddr, &len); - if (fd < 0 && errno != EINTR) { - return; - } else if (fd >= 0) { - break; - } - } - s1 = net_socket_fd_init(s->vlan, fd, 1); - if (!s1) { - closesocket(fd); - } else { - snprintf(s1->vc->info_str, sizeof(s1->vc->info_str), - "socket: connection from %s:%d", - inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); - } -} - -static int net_socket_listen_init(VLANState *vlan, const char *host_str) -{ - NetSocketListenState *s; - int fd, val, ret; - struct sockaddr_in saddr; - - if (parse_host_port(&saddr, host_str) < 0) - return -1; - - s = qemu_mallocz(sizeof(NetSocketListenState)); - if (!s) - return -1; - - fd = socket(PF_INET, SOCK_STREAM, 0); - if (fd < 0) { - perror("socket"); - return -1; - } - socket_set_nonblock(fd); - - /* allow fast reuse */ - val = 1; - setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val)); - - ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); - if (ret < 0) { - perror("bind"); - return -1; - } - ret = listen(fd, 0); - if (ret < 0) { - perror("listen"); - return -1; - } - s->vlan = vlan; - s->fd = fd; - qemu_set_fd_handler(fd, net_socket_accept, NULL, s); - return 0; -} - -static int net_socket_connect_init(VLANState *vlan, const char *host_str) -{ - NetSocketState *s; - int fd, connected, ret, err; - struct sockaddr_in saddr; - - if (parse_host_port(&saddr, host_str) < 0) - return -1; - - fd = socket(PF_INET, SOCK_STREAM, 0); - if (fd < 0) { - perror("socket"); - return -1; - } - socket_set_nonblock(fd); - - connected = 0; - for(;;) { - ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr)); - if (ret < 0) { - err = socket_error(); - if (err == EINTR || err == EWOULDBLOCK) { - } else if (err == EINPROGRESS) { - break; -#ifdef _WIN32 - } else if (err == WSAEALREADY) { - break; -#endif - } else { - perror("connect"); - closesocket(fd); - return -1; - } - } else { - connected = 1; - break; - } - } - s = net_socket_fd_init(vlan, fd, connected); - if (!s) - return -1; - snprintf(s->vc->info_str, sizeof(s->vc->info_str), - "socket: connect to %s:%d", - inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); - return 0; -} - -static int net_socket_mcast_init(VLANState *vlan, const char *host_str) -{ - NetSocketState *s; - int fd; - struct sockaddr_in saddr; - - if (parse_host_port(&saddr, host_str) < 0) - return -1; - - - fd = net_socket_mcast_create(&saddr); - if (fd < 0) - return -1; - - s = net_socket_fd_init(vlan, fd, 0); - if (!s) - return -1; - - s->dgram_dst = saddr; - - snprintf(s->vc->info_str, sizeof(s->vc->info_str), - "socket: mcast=%s:%d", - inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); - return 0; - -} - -static const char *get_opt_name(char *buf, int buf_size, const char *p) +const char *get_opt_name(char *buf, int buf_size, const char *p) { char *q; @@ -3010,7 +1772,7 @@ static const char *get_opt_name(char *buf, int buf_size, const char *p) return p; } -static const char *get_opt_value(char *buf, int buf_size, const char *p) +const char *get_opt_value(char *buf, int buf_size, const char *p) { char *q; @@ -3031,8 +1793,8 @@ static const char *get_opt_value(char *buf, int buf_size, const char *p) return p; } -static int get_param_value(char *buf, int buf_size, - const char *tag, const char *str) +int get_param_value(char *buf, int buf_size, + const char *tag, const char *str) { const char *p; char option[128]; @@ -3056,8 +1818,8 @@ static int get_param_value(char *buf, int buf_size, return 0; } -static int check_params(char *buf, int buf_size, - const char * const *params, const char *str) +int check_params(char *buf, int buf_size, + const char * const *params, const char *str) { const char *p; int i; @@ -3081,188 +1843,6 @@ static int check_params(char *buf, int buf_size, return 0; } -static int net_client_init(const char *device, const char *p) -{ - char buf[1024]; - int vlan_id, ret; - VLANState *vlan; - - vlan_id = 0; - if (get_param_value(buf, sizeof(buf), "vlan", p)) { - vlan_id = strtol(buf, NULL, 0); - } - vlan = qemu_find_vlan(vlan_id); - if (!vlan) { - fprintf(stderr, "Could not create vlan %d\n", vlan_id); - return -1; - } - if (!strcmp(device, "nic")) { - NICInfo *nd; - uint8_t *macaddr; - - if (nb_nics >= MAX_NICS) { - fprintf(stderr, "Too Many NICs\n"); - return -1; - } - nd = &nd_table[nb_nics]; - macaddr = nd->macaddr; - macaddr[0] = 0x52; - macaddr[1] = 0x54; - macaddr[2] = 0x00; - macaddr[3] = 0x12; - macaddr[4] = 0x34; - macaddr[5] = 0x56 + nb_nics; - - if (get_param_value(buf, sizeof(buf), "macaddr", p)) { - if (parse_macaddr(macaddr, buf) < 0) { - fprintf(stderr, "invalid syntax for ethernet address\n"); - return -1; - } - } - if (get_param_value(buf, sizeof(buf), "model", p)) { - nd->model = strdup(buf); - } - nd->vlan = vlan; - nb_nics++; - vlan->nb_guest_devs++; - ret = 0; - } else - if (!strcmp(device, "none")) { - /* does nothing. It is needed to signal that no network cards - are wanted */ - ret = 0; - } else -#ifdef CONFIG_SLIRP - if (!strcmp(device, "user")) { - if (get_param_value(buf, sizeof(buf), "hostname", p)) { - pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf); - } - vlan->nb_host_devs++; - ret = net_slirp_init(vlan); - } else -#endif -#ifdef _WIN32 - if (!strcmp(device, "tap")) { - char ifname[64]; - if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { - fprintf(stderr, "tap: no interface name\n"); - return -1; - } - vlan->nb_host_devs++; - ret = tap_win32_init(vlan, ifname); - } else -#else - if (!strcmp(device, "tap")) { - char ifname[64]; - char setup_script[1024], down_script[1024]; - int fd; - vlan->nb_host_devs++; - if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { - fd = strtol(buf, NULL, 0); - fcntl(fd, F_SETFL, O_NONBLOCK); - ret = -1; - if (net_tap_fd_init(vlan, fd)) - ret = 0; - } else { - if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { - ifname[0] = '\0'; - } - if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) { - pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT); - } - if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) { - pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT); - } - ret = net_tap_init(vlan, ifname, setup_script, down_script); - } - } else -#endif - if (!strcmp(device, "socket")) { - if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { - int fd; - fd = strtol(buf, NULL, 0); - ret = -1; - if (net_socket_fd_init(vlan, fd, 1)) - ret = 0; - } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) { - ret = net_socket_listen_init(vlan, buf); - } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) { - ret = net_socket_connect_init(vlan, buf); - } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) { - ret = net_socket_mcast_init(vlan, buf); - } else { - fprintf(stderr, "Unknown socket options: %s\n", p); - return -1; - } - vlan->nb_host_devs++; - } else -#ifdef CONFIG_VDE - if (!strcmp(device, "vde")) { - char vde_sock[1024], vde_group[512]; - int vde_port, vde_mode; - vlan->nb_host_devs++; - if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) { - vde_sock[0] = '\0'; - } - if (get_param_value(buf, sizeof(buf), "port", p) > 0) { - vde_port = strtol(buf, NULL, 10); - } else { - vde_port = 0; - } - if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) { - vde_group[0] = '\0'; - } - if (get_param_value(buf, sizeof(buf), "mode", p) > 0) { - vde_mode = strtol(buf, NULL, 8); - } else { - vde_mode = 0700; - } - ret = net_vde_init(vlan, vde_sock, vde_port, vde_group, vde_mode); - } else -#endif - { - fprintf(stderr, "Unknown network device: %s\n", device); - return -1; - } - if (ret < 0) { - fprintf(stderr, "Could not initialize device '%s'\n", device); - } - - return ret; -} - -static int net_client_parse(const char *str) -{ - const char *p; - char *q; - char device[64]; - - p = str; - q = device; - while (*p != '\0' && *p != ',') { - if ((q - device) < sizeof(device) - 1) - *q++ = *p; - p++; - } - *q = '\0'; - if (*p == ',') - p++; - - return net_client_init(device, p); -} - -void do_info_network(void) -{ - VLANState *vlan; - VLANClientState *vc; - - for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { - term_printf("VLAN %d devices:\n", vlan->id); - for(vc = vlan->first_client; vc != NULL; vc = vc->next) - term_printf(" %s\n", vc->info_str); - } -} - /***********************************************************/ /* Bluetooth support */ static int nb_hcis; @@ -5877,7 +4457,7 @@ void main_loop_wait(int timeout) tv.tv_usec = (timeout % 1000) * 1000; #if defined(CONFIG_SLIRP) - if (slirp_inited) { + if (slirp_is_inited()) { slirp_select_fill(&nfds, &rfds, &wfds, &xfds); } #endif @@ -5906,7 +4486,7 @@ void main_loop_wait(int timeout) } } #if defined(CONFIG_SLIRP) - if (slirp_inited) { + if (slirp_is_inited()) { if (ret < 0) { FD_ZERO(&rfds); FD_ZERO(&wfds); @@ -6739,7 +5319,6 @@ int main(int argc, char **argv) int fds[2]; int tb_size; const char *pid_file = NULL; - VLANState *vlan; int autostart; const char *incoming = NULL; @@ -7481,16 +6060,7 @@ int main(int argc, char **argv) if (net_client_parse(net_clients[i]) < 0) exit(1); } - for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { - if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0) - continue; - if (vlan->nb_guest_devs == 0) - fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id); - if (vlan->nb_host_devs == 0) - fprintf(stderr, - "Warning: vlan %d is not connected to host network\n", - vlan->id); - } + net_client_check(); #ifdef TARGET_I386 /* XXX: this should be moved in the PC machine instantiation code */ @@ -7739,29 +6309,7 @@ int main(int argc, char **argv) main_loop(); quit_timers(); + net_cleanup(); -#if !defined(_WIN32) - /* close network clients */ - for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { - VLANClientState *vc; - - for(vc = vlan->first_client; vc != NULL; vc = vc->next) { - if (vc->fd_read == tap_receive) { - char ifname[64]; - TAPState *s = vc->opaque; - - if (sscanf(vc->info_str, "tap: ifname=%63s ", ifname) == 1 && - s->down_script[0]) - launch_script(s->down_script, ifname, s->fd); - } -#if defined(CONFIG_VDE) - if (vc->fd_read == vde_from_qemu) { - VDEState *s = vc->opaque; - vde_close(s->vde); - } -#endif - } - } -#endif return 0; } |