diff options
| -rw-r--r-- | net.c | 316 | ||||
| -rw-r--r-- | qemu-options.hx | 52 | ||||
| -rw-r--r-- | slirp/libslirp.h | 24 | ||||
| -rw-r--r-- | slirp/main.h | 1 | ||||
| -rw-r--r-- | slirp/slirp.c | 52 |
5 files changed, 311 insertions, 134 deletions
@@ -669,12 +669,14 @@ static void config_error(Monitor *mon, const char *fmt, ...) /* slirp network adapter */ -#define SLIRP_CFG_REDIR 1 +#define SLIRP_CFG_HOSTFWD 1 +#define SLIRP_CFG_LEGACY 2 struct slirp_config_str { struct slirp_config_str *next; int flags; char str[1024]; + int legacy_format; }; static int slirp_inited; @@ -683,13 +685,14 @@ const char *legacy_tftp_prefix; const char *legacy_bootp_filename; static VLANClientState *slirp_vc; -static void slirp_redirection(Monitor *mon, const char *redir_str); -static void vmchannel_init(Monitor *mon, const char *config_str); +static void slirp_hostfwd(Monitor *mon, const char *redir_str); +static void slirp_guestfwd(Monitor *mon, const char *config_str, + int legacy_format); #ifndef _WIN32 static const char *legacy_smb_export; -static void slirp_smb(const char *exported_dir); +static void slirp_smb(const char *exported_dir, struct in_addr vserver_addr); #endif int slirp_can_output(void) @@ -731,31 +734,122 @@ static void net_slirp_cleanup(VLANClientState *vc) } static int net_slirp_init(Monitor *mon, VLANState *vlan, const char *model, - const char *name, int restricted, const char *ip, - const char *tftp_export, const char *bootfile, - const char *smb_export) + const char *name, int restricted, + const char *vnetwork, const char *vhost, + const char *vhostname, const char *tftp_export, + const char *bootfile, const char *vdhcp_start, + const char *vnameserver, const char *smb_export, + const char *vsmbserver) { if (slirp_in_use) { /* slirp only supports a single instance so far */ return -1; } if (!slirp_inited) { + /* default settings according to historic slirp */ + struct in_addr net = { .s_addr = htonl(0x0a000000) }; /* 10.0.0.0 */ + struct in_addr mask = { .s_addr = htonl(0xff000000) }; /* 255.0.0.0 */ + struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */ + struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */ + struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */ +#ifndef _WIN32 + struct in_addr smbsrv = { .s_addr = 0 }; +#endif + char buf[20]; + uint32_t addr; + int shift; + char *end; + if (!tftp_export) { tftp_export = legacy_tftp_prefix; } if (!bootfile) { bootfile = legacy_bootp_filename; } + + if (vnetwork) { + if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) { + if (!inet_aton(vnetwork, &net)) { + return -1; + } + addr = ntohl(net.s_addr); + if (!(addr & 0x80000000)) { + mask.s_addr = htonl(0xff000000); /* class A */ + } else if ((addr & 0xfff00000) == 0xac100000) { + mask.s_addr = htonl(0xfff00000); /* priv. 172.16.0.0/12 */ + } else if ((addr & 0xc0000000) == 0x80000000) { + mask.s_addr = htonl(0xffff0000); /* class B */ + } else if ((addr & 0xffff0000) == 0xc0a80000) { + mask.s_addr = htonl(0xffff0000); /* priv. 192.168.0.0/16 */ + } else if ((addr & 0xffff0000) == 0xc6120000) { + mask.s_addr = htonl(0xfffe0000); /* tests 198.18.0.0/15 */ + } else if ((addr & 0xe0000000) == 0xe0000000) { + mask.s_addr = htonl(0xffffff00); /* class C */ + } else { + mask.s_addr = htonl(0xfffffff0); /* multicast/reserved */ + } + } else { + if (!inet_aton(buf, &net)) { + return -1; + } + shift = strtol(vnetwork, &end, 10); + if (*end != '\0') { + if (!inet_aton(vnetwork, &mask)) { + return -1; + } + } else if (shift < 4 || shift > 32) { + return -1; + } else { + mask.s_addr = htonl(0xffffffff << (32 - shift)); + } + } + net.s_addr &= mask.s_addr; + host.s_addr = net.s_addr | (htonl(0x0202) & ~mask.s_addr); + dhcp.s_addr = net.s_addr | (htonl(0x020f) & ~mask.s_addr); + dns.s_addr = net.s_addr | (htonl(0x0203) & ~mask.s_addr); + } + + if (vhost && !inet_aton(vhost, &host)) { + return -1; + } + if ((host.s_addr & mask.s_addr) != net.s_addr) { + return -1; + } + + if (vdhcp_start && !inet_aton(vdhcp_start, &dhcp)) { + return -1; + } + if ((dhcp.s_addr & mask.s_addr) != net.s_addr || + dhcp.s_addr == host.s_addr || dhcp.s_addr == dns.s_addr) { + return -1; + } + + if (vnameserver && !inet_aton(vnameserver, &dns)) { + return -1; + } + if ((dns.s_addr & mask.s_addr) != net.s_addr || + dns.s_addr == host.s_addr) { + return -1; + } + +#ifndef _WIN32 + if (vsmbserver && !inet_aton(vsmbserver, &smbsrv)) { + return -1; + } +#endif + + slirp_init(restricted, net, mask, host, vhostname, tftp_export, + bootfile, dhcp, dns); slirp_inited = 1; - slirp_init(restricted, ip, tftp_export, bootfile); while (slirp_configs) { struct slirp_config_str *config = slirp_configs; - if (config->flags & SLIRP_CFG_REDIR) { - slirp_redirection(mon, config->str); + if (config->flags & SLIRP_CFG_HOSTFWD) { + slirp_hostfwd(mon, config->str); } else { - vmchannel_init(mon, config->str); + slirp_guestfwd(mon, config->str, + config->flags & SLIRP_CFG_LEGACY); } slirp_configs = config->next; qemu_free(config); @@ -765,7 +859,7 @@ static int net_slirp_init(Monitor *mon, VLANState *vlan, const char *model, smb_export = legacy_smb_export; } if (smb_export) { - slirp_smb(smb_export); + slirp_smb(smb_export, smbsrv); } #endif } @@ -777,7 +871,7 @@ static int net_slirp_init(Monitor *mon, VLANState *vlan, const char *model, return 0; } -static void net_slirp_redir_rm(Monitor *mon, const char *port_str) +static void net_slirp_hostfwd_remove(Monitor *mon, const char *port_str) { int host_port; char buf[256] = ""; @@ -803,23 +897,24 @@ static void net_slirp_redir_rm(Monitor *mon, const char *port_str) host_port = atoi(p); - n = slirp_redir_rm(is_udp, host_port); + n = slirp_remove_hostfwd(is_udp, host_port); - monitor_printf(mon, "removed %d redirections to %s port %d\n", n, - is_udp ? "udp" : "tcp", host_port); + monitor_printf(mon, "removed %d host forwarding rules for %s port %d\n", + n, is_udp ? "udp" : "tcp", host_port); return; fail_syntax: monitor_printf(mon, "invalid format\n"); } -static void slirp_redirection(Monitor *mon, const char *redir_str) +static void slirp_hostfwd(Monitor *mon, const char *redir_str) { - struct in_addr guest_addr; + struct in_addr guest_addr = { .s_addr = 0 }; int host_port, guest_port; const char *p; - char buf[256], *r; + char buf[256]; int is_udp; + char *end; p = redir_str; if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { @@ -836,33 +931,31 @@ static void slirp_redirection(Monitor *mon, const char *redir_str) if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { goto fail_syntax; } - host_port = strtol(buf, &r, 0); - if (r == buf) { + host_port = strtol(buf, &end, 0); + if (*end != '\0' || host_port < 1 || host_port > 65535) { goto fail_syntax; } if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { goto fail_syntax; } - if (buf[0] == '\0') { - pstrcpy(buf, sizeof(buf), "10.0.2.15"); - } - if (!inet_aton(buf, &guest_addr)) { + if (buf[0] != '\0' && !inet_aton(buf, &guest_addr)) { goto fail_syntax; } - guest_port = strtol(p, &r, 0); - if (r == p) { + guest_port = strtol(p, &end, 0); + if (*end != '\0' || guest_port < 1 || guest_port > 65535) { goto fail_syntax; } - if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) { - config_error(mon, "could not set up redirection '%s'\n", redir_str); + if (slirp_add_hostfwd(is_udp, host_port, guest_addr, guest_port) < 0) { + config_error(mon, "could not set up host forwarding rule '%s'\n", + redir_str); } return; fail_syntax: - config_error(mon, "invalid redirection format '%s'\n", redir_str); + config_error(mon, "invalid host forwarding rule '%s'\n", redir_str); } void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2) @@ -875,7 +968,7 @@ void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2 } else { config = qemu_malloc(sizeof(*config)); pstrcpy(config->str, sizeof(config->str), redir_str); - config->flags = SLIRP_CFG_REDIR; + config->flags = SLIRP_CFG_HOSTFWD; config->next = slirp_configs; slirp_configs = config; } @@ -883,11 +976,11 @@ void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2 } if (!strcmp(redir_str, "remove")) { - net_slirp_redir_rm(mon, redir_opt2); + net_slirp_hostfwd_remove(mon, redir_opt2); return; } - slirp_redirection(mon, redir_str); + slirp_hostfwd(mon, redir_str); } #ifndef _WIN32 @@ -925,7 +1018,7 @@ static void smb_exit(void) erase_dir(smb_dir); } -static void slirp_smb(const char *exported_dir) +static void slirp_smb(const char *exported_dir, struct in_addr vserver_addr) { char smb_conf[1024]; char smb_cmdline[1024]; @@ -971,19 +1064,24 @@ static void slirp_smb(const char *exported_dir) snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s", SMBD_COMMAND, smb_conf); - slirp_add_exec(0, smb_cmdline, 4, 139); + if (slirp_add_exec(0, smb_cmdline, vserver_addr, 139) < 0) { + fprintf(stderr, "conflicting/invalid smbserver address\n"); + exit(1); + } } /* automatic user mode samba server configuration (legacy interface) */ void net_slirp_smb(const char *exported_dir) { + struct in_addr vserver_addr = { .s_addr = 0 }; + if (legacy_smb_export) { fprintf(stderr, "-smb given twice\n"); exit(1); } legacy_smb_export = exported_dir; if (slirp_inited) { - slirp_smb(exported_dir); + slirp_smb(exported_dir, vserver_addr); } } @@ -994,51 +1092,85 @@ void do_info_slirp(Monitor *mon) slirp_stats(); } -struct VMChannel { +struct GuestFwd { CharDriverState *hd; + struct in_addr server; int port; }; -static int vmchannel_can_read(void *opaque) +static int guestfwd_can_read(void *opaque) { - struct VMChannel *vmc = (struct VMChannel*)opaque; - return slirp_socket_can_recv(4, vmc->port); + struct GuestFwd *fwd = opaque; + return slirp_socket_can_recv(fwd->server, fwd->port); } -static void vmchannel_read(void *opaque, const uint8_t *buf, int size) +static void guestfwd_read(void *opaque, const uint8_t *buf, int size) { - struct VMChannel *vmc = (struct VMChannel*)opaque; - slirp_socket_recv(4, vmc->port, buf, size); + struct GuestFwd *fwd = opaque; + slirp_socket_recv(fwd->server, fwd->port, buf, size); } -static void vmchannel_init(Monitor *mon, const char *config_str) +static void slirp_guestfwd(Monitor *mon, const char *config_str, + int legacy_format) { - struct VMChannel *vmc; - char *devname; - char name[20]; + struct in_addr server = { .s_addr = 0 }; + struct GuestFwd *fwd; + const char *p; + char buf[128]; + char *end; int port; - port = strtol(config_str, &devname, 10); - if (port < 1 || port > 65535 || *devname != ':') { - config_error(mon, "invalid vmchannel port number\n"); - return; + p = config_str; + if (legacy_format) { + if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { + goto fail_syntax; + } + } else { + if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { + goto fail_syntax; + } + if (strcmp(buf, "tcp") && buf[0] != '\0') { + goto fail_syntax; + } + if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { + goto fail_syntax; + } + if (buf[0] != '\0' && !inet_aton(buf, &server)) { + goto fail_syntax; + } + if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { + goto fail_syntax; + } + } + port = strtol(buf, &end, 10); + if (*end != '\0' || port < 1 || port > 65535) { + goto fail_syntax; } - devname++; - vmc = qemu_malloc(sizeof(struct VMChannel)); - snprintf(name, sizeof(name), "vmchannel%d", port); - vmc->hd = qemu_chr_open(name, devname, NULL); - if (!vmc->hd) { - config_error(mon, "could not open vmchannel device '%s'\n", devname); - qemu_free(vmc); + fwd = qemu_malloc(sizeof(struct GuestFwd)); + snprintf(buf, sizeof(buf), "guestfwd.tcp:%d", port); + fwd->hd = qemu_chr_open(buf, p, NULL); + if (!fwd->hd) { + config_error(mon, "could not open guest forwarding device '%s'\n", + buf); + qemu_free(fwd); return; } - vmc->port = port; + fwd->server = server; + fwd->port = port; - slirp_add_exec(3, vmc->hd, 4, port); - qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read, - NULL, vmc); + if (slirp_add_exec(3, fwd->hd, server, port) < 0) { + config_error(mon, "conflicting/invalid host:port in guest forwarding " + "rule '%s'\n", config_str); + qemu_free(fwd); + return; + } + qemu_chr_add_handlers(fwd->hd, guestfwd_can_read, guestfwd_read, + NULL, fwd); return; + + fail_syntax: + config_error(mon, "invalid guest forwarding rule '%s'\n", config_str); } #endif /* CONFIG_SLIRP */ @@ -2252,15 +2384,21 @@ int net_client_init(Monitor *mon, const char *device, const char *p) #ifdef CONFIG_SLIRP if (!strcmp(device, "user")) { static const char * const slirp_params[] = { - "vlan", "name", "hostname", "restrict", "ip", "tftp", "bootfile", - "smb", "redir", "channel", NULL + "vlan", "name", "hostname", "restrict", "ip", "net", "host", + "tftp", "bootfile", "dhcpstart", "dns", "smb", "smbserver", + "hostfwd", "guestfwd", NULL }; struct slirp_config_str *config; + int restricted = 0; + char *vnet = NULL; + char *vhost = NULL; + char *vhostname = NULL; char *tftp_export = NULL; char *bootfile = NULL; + char *vdhcp_start = NULL; + char *vnamesrv = NULL; char *smb_export = NULL; - int restricted = 0; - char *ip = NULL; + char *vsmbsrv = NULL; const char *q; if (check_params(buf, sizeof(buf), slirp_params, p) < 0) { @@ -2268,14 +2406,29 @@ int net_client_init(Monitor *mon, const char *device, const char *p) ret = -1; goto out; } + if (get_param_value(buf, sizeof(buf), "ip", p)) { + /* emulate legacy parameter */ + vnet = qemu_malloc(strlen(buf) + strlen("/24") + 1); + strcpy(vnet, buf); + strcat(vnet, "/24"); + } + if (get_param_value(buf, sizeof(buf), "net", p)) { + vnet = qemu_strdup(buf); + } + if (get_param_value(buf, sizeof(buf), "host", p)) { + vhost = qemu_strdup(buf); + } if (get_param_value(buf, sizeof(buf), "hostname", p)) { - pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf); + vhostname = qemu_strdup(buf); } if (get_param_value(buf, sizeof(buf), "restrict", p)) { restricted = (buf[0] == 'y') ? 1 : 0; } - if (get_param_value(buf, sizeof(buf), "ip", p)) { - ip = qemu_strdup(buf); + if (get_param_value(buf, sizeof(buf), "dhcpstart", p)) { + vdhcp_start = qemu_strdup(buf); + } + if (get_param_value(buf, sizeof(buf), "dns", p)) { + vnamesrv = qemu_strdup(buf); } if (get_param_value(buf, sizeof(buf), "tftp", p)) { tftp_export = qemu_strdup(buf); @@ -2285,15 +2438,18 @@ int net_client_init(Monitor *mon, const char *device, const char *p) } if (get_param_value(buf, sizeof(buf), "smb", p)) { smb_export = qemu_strdup(buf); + if (get_param_value(buf, sizeof(buf), "smbserver", p)) { + vsmbsrv = qemu_strdup(buf); + } } q = p; while (1) { config = qemu_malloc(sizeof(*config)); if (!get_next_param_value(config->str, sizeof(config->str), - "redir", &q)) { + "hostfwd", &q)) { break; } - config->flags = SLIRP_CFG_REDIR; + config->flags = SLIRP_CFG_HOSTFWD; config->next = slirp_configs; slirp_configs = config; config = NULL; @@ -2302,7 +2458,7 @@ int net_client_init(Monitor *mon, const char *device, const char *p) while (1) { config = qemu_malloc(sizeof(*config)); if (!get_next_param_value(config->str, sizeof(config->str), - "channel", &q)) { + "guestfwd", &q)) { break; } config->flags = 0; @@ -2312,23 +2468,29 @@ int net_client_init(Monitor *mon, const char *device, const char *p) } qemu_free(config); vlan->nb_host_devs++; - ret = net_slirp_init(mon, vlan, device, name, restricted, ip, - tftp_export, bootfile, smb_export); - qemu_free(ip); + ret = net_slirp_init(mon, vlan, device, name, restricted, vnet, vhost, + vhostname, tftp_export, bootfile, vdhcp_start, + vnamesrv, smb_export, vsmbsrv); + qemu_free(vnet); + qemu_free(vhost); + qemu_free(vhostname); qemu_free(tftp_export); qemu_free(bootfile); + qemu_free(vdhcp_start); + qemu_free(vnamesrv); qemu_free(smb_export); + qemu_free(vsmbsrv); } else if (!strcmp(device, "channel")) { if (!slirp_inited) { struct slirp_config_str *config; config = qemu_malloc(sizeof(*config)); pstrcpy(config->str, sizeof(config->str), p); - config->flags = 0; + config->flags = SLIRP_CFG_LEGACY; config->next = slirp_configs; slirp_configs = config; } else { - vmchannel_init(mon, p); + slirp_guestfwd(mon, p, 1); } ret = 0; } else diff --git a/qemu-options.hx b/qemu-options.hx index d1c1539e2..da5b0ac6a 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -749,10 +749,11 @@ DEF("net", HAS_ARG, QEMU_OPTION_net, "-net nic[,vlan=n][,macaddr=mac][,model=type][,name=str][,addr=str][,vectors=v]\n" " create a new Network Interface Card and connect it to VLAN 'n'\n" #ifdef CONFIG_SLIRP - "-net user[,vlan=n][,name=str][ip=netaddr][,restrict=y|n][,hostname=host]\n" - " [,tftp=dir][,bootfile=f][,redir=rule][,channel=rule]" + "-net user[,vlan=n][,name=str][,net=addr[/mask]][,host=addr][,restrict=y|n]\n" + " [,hostname=host][,dhcpstart=addr][,dns=addr][,tftp=dir][,bootfile=f]\n" + " [,hostfwd=rule][,guestfwd=rule]" #ifndef _WIN32 - "[,smb=dir]\n" + "[,smb=dir[,smbserver=addr]]\n" #endif " connect the user mode network stack to VLAN 'n', configure its\n" " DHCP server and enabled optional services\n" @@ -819,8 +820,14 @@ Connect user mode stack to VLAN @var{n} (@var{n} = 0 is the default). @item name=@var{name} Assign symbolic name for use in monitor commands. -@item ip=@var{netaddr} -Set IP network address the guest will see (default: 10.0.2.x). +@item net=@var{addr}[/@var{mask}] +Set IP network address the guest will see. Optionally specify the netmask, +either in the form a.b.c.d or as number of valid top-most bits. Default is +10.0.2.0/8. + +@item host=@var{addr} +Specify the guest-visible address of the host. Default is the 2nd IP in the +guest network, i.e. x.x.x.2. @item restrict=y|yes|n|no If this options is enabled, the guest will be isolated, i.e. it will not be @@ -830,12 +837,20 @@ to the outside. This option does not affect explicitly set forwarding rule. @item hostname=@var{name} Specifies the client hostname reported by the builtin DHCP server. +@item dhcpstart=@var{addr} +Specify the first of the 16 IPs the built-in DHCP server can assign. Default +is the 16th to 31st IP in the guest network, i.e. x.x.x.16 to x.x.x.31. + +@item dns=@var{addr} +Specify the guest-visible address of the virtual nameserver. The address must +be different from the host address. Default is the 3rd IP in the guest network, +i.e. x.x.x.3. + @item tftp=@var{dir} When using the user mode network stack, activate a built-in TFTP server. The files in @var{dir} will be exposed as the root of a TFTP server. The TFTP client on the guest must be configured in binary mode (use the command -@code{bin} of the Unix TFTP client). The host IP address on the guest is -10.0.2.2 by default. +@code{bin} of the Unix TFTP client). @item bootfile=@var{file} When using the user mode network stack, broadcast @var{file} as the BOOTP @@ -847,10 +862,11 @@ Example (using pxelinux): qemu -hda linux.img -boot n -net user,tftp=/path/to/tftp/files,bootfile=/pxelinux.0 @end example -@item smb=@var{dir} +@item smb=@var{dir}[,smbserver=@var{addr}] When using the user mode network stack, activate a built-in SMB server so that Windows OSes can access to the host files in @file{@var{dir}} -transparently. +transparently. The IP address of the SMB server can be set to @var{addr}. By +default the 4th IP in the guest network is used, i.e. x.x.x.4. In the guest Windows OS, the line: @example @@ -865,19 +881,19 @@ Note that a SAMBA server must be installed on the host OS in @file{/usr/sbin/smbd}. QEMU was tested successfully with smbd versions from Red Hat 9, Fedora Core 3 and OpenSUSE 11.x. -@item redir=[tcp|udp]:@var{host-port}:[@var{guest-host}]:@var{guest-port} -Redirect incoming TCP or UDP connections to the host port @var{host-port} to -the guest @var{guest-host} on guest port @var{guest-port}. If @var{guest-host} -is not specified, its value is 10.0.2.15 (default address given by the built-in -DHCP server). If no connection type is specified, TCP is used. This option can -be given multiple times. +@item hostfwd=[tcp|udp]:@var{hostport}:[@var{guestaddr}]:@var{guestport} +Redirect incoming TCP or UDP connections to the host port @var{hostport} to +the guest IP address @var{guestaddr} on guest port @var{guestport}. If +@var{guestaddr} is not specified, its value is x.x.x.15 (default first address +given by the built-in DHCP server). If no connection type is specified, TCP is +used. This option can be given multiple times. For example, to redirect host X11 connection from screen 1 to guest screen 0, use the following: @example # on the host -qemu -net user,redir=tcp:6001::6000 [...] +qemu -net user,hostfwd=tcp:6001::6000 [...] # this host xterm should open in the guest X11 server xterm -display :1 @end example @@ -887,14 +903,14 @@ the guest, use the following: @example # on the host -qemu -net user,redir=tcp:5555::23 [...] +qemu -net user,hostfwd=tcp:5555::23 [...] telnet localhost 5555 @end example Then when you use on the host @code{telnet localhost 5555}, you connect to the guest telnet server. -@item channel=@var{port}:@var{dev} +@item guestfwd=[tcp]:@var{server}:@var{port}-@var{dev} Forward guest TCP connections to port @var{port} on the host to character device @var{dev}. This option can be given multiple times. diff --git a/slirp/libslirp.h b/slirp/libslirp.h index 7dee34b36..e4c9c99c3 100644 --- a/slirp/libslirp.h +++ b/slirp/libslirp.h @@ -5,8 +5,11 @@ extern "C" { #endif -void slirp_init(int restricted, const char *special_ip, const char *tftp_path, - const char *bootfile); +void slirp_init(int restricted, struct in_addr vnetwork, + struct in_addr vnetmask, struct in_addr vhost, + const char *vhostname, const char *tftp_path, + const char *bootfile, struct in_addr vdhcp_start, + struct in_addr vnameserver); void slirp_select_fill(int *pnfds, fd_set *readfds, fd_set *writefds, fd_set *xfds); @@ -19,18 +22,17 @@ void slirp_input(const uint8_t *pkt, int pkt_len); int slirp_can_output(void); void slirp_output(const uint8_t *pkt, int pkt_len); -int slirp_redir_rm(int is_udp, int host_port); -int slirp_redir(int is_udp, int host_port, - struct in_addr guest_addr, int guest_port); -int slirp_add_exec(int do_pty, const void *args, int addr_low_byte, - int guest_port); +int slirp_add_hostfwd(int is_udp, int host_port, + struct in_addr guest_addr, int guest_port); +int slirp_remove_hostfwd(int is_udp, int host_port); -extern char slirp_hostname[33]; +int slirp_add_exec(int do_pty, const void *args, struct in_addr guest_addr, + int guest_port); void slirp_stats(void); -void slirp_socket_recv(int addr_low_byte, int guest_port, const uint8_t *buf, - int size); -size_t slirp_socket_can_recv(int addr_low_byte, int guest_port); +void slirp_socket_recv(struct in_addr guest_addr, int guest_port, + const uint8_t *buf, int size); +size_t slirp_socket_can_recv(struct in_addr guest_addr, int guest_port); #ifdef __cplusplus } diff --git a/slirp/main.h b/slirp/main.h index edbb9cb39..891220ae9 100644 --- a/slirp/main.h +++ b/slirp/main.h @@ -47,6 +47,7 @@ extern int ppp_exit; extern int tcp_keepintvl; extern uint8_t client_ethaddr[6]; extern int slirp_restrict; +extern char slirp_hostname[33]; extern char *tftp_prefix; extern char *bootp_filename; diff --git a/slirp/slirp.c b/slirp/slirp.c index 8affd46c7..a91823203 100644 --- a/slirp/slirp.c +++ b/slirp/slirp.c @@ -173,12 +173,14 @@ static void slirp_cleanup(void) static void slirp_state_save(QEMUFile *f, void *opaque); static int slirp_state_load(QEMUFile *f, void *opaque, int version_id); -void slirp_init(int restricted, const char *special_ip, const char *tftp_path, - const char *bootfile) +void slirp_init(int restricted, struct in_addr vnetwork, + struct in_addr vnetmask, struct in_addr vhost, + const char *vhostname, const char *tftp_path, + const char *bootfile, struct in_addr vdhcp_start, + struct in_addr vnameserver) { // debug_init("/tmp/slirp.log", DEBUG_DEFAULT); - struct in_addr special_addr = { .s_addr = htonl(0x0a000200) }; #ifdef _WIN32 WSADATA Data; @@ -203,8 +205,11 @@ void slirp_init(int restricted, const char *special_ip, const char *tftp_path, fprintf (stderr, "Warning: No DNS servers found\n"); } - if (special_ip) { - inet_aton(special_ip, &special_addr); + vnetwork_addr = vnetwork; + vnetwork_mask = vnetmask; + vhost_addr = vhost; + if (vhostname) { + pstrcpy(slirp_hostname, sizeof(slirp_hostname), vhostname); } qemu_free(tftp_prefix); tftp_prefix = NULL; @@ -216,12 +221,9 @@ void slirp_init(int restricted, const char *special_ip, const char *tftp_path, if (bootfile) { bootp_filename = qemu_strdup(bootfile); } + vdhcp_startaddr = vdhcp_start; + vnameserver_addr = vnameserver; - vnetwork_addr = special_addr; - vnetwork_mask.s_addr = htonl(0xffffff00); - vhost_addr.s_addr = special_addr.s_addr | htonl(2); - vdhcp_startaddr.s_addr = special_addr.s_addr | htonl(15); - vnameserver_addr.s_addr = special_addr.s_addr | htonl(3); getouraddr(); register_savevm("slirp", 0, 1, slirp_state_save, slirp_state_load, NULL); } @@ -755,7 +757,7 @@ void if_encap(const uint8_t *ip_data, int ip_data_len) /* Unlistens a redirection * * Return value: number of redirs removed */ -int slirp_redir_rm(int is_udp, int host_port) +int slirp_remove_hostfwd(int is_udp, int host_port) { struct socket *so; struct socket *head = (is_udp ? &udb : &tcb); @@ -775,8 +777,8 @@ int slirp_redir_rm(int is_udp, int host_port) return n; } -int slirp_redir(int is_udp, int host_port, - struct in_addr guest_addr, int guest_port) +int slirp_add_hostfwd(int is_udp, int host_port, + struct in_addr guest_addr, int guest_port) { if (!guest_addr.s_addr) { guest_addr = vdhcp_startaddr; @@ -793,13 +795,13 @@ int slirp_redir(int is_udp, int host_port, return 0; } -int slirp_add_exec(int do_pty, const void *args, int addr_low_byte, - int guest_port) +int slirp_add_exec(int do_pty, const void *args, struct in_addr guest_addr, + int guest_port) { - struct in_addr guest_addr = { - .s_addr = vnetwork_addr.s_addr | htonl(addr_low_byte) - }; - + if (!guest_addr.s_addr) { + guest_addr.s_addr = + vnetwork_addr.s_addr | (htonl(0x0204) & ~vnetwork_mask.s_addr); + } if ((guest_addr.s_addr & vnetwork_mask.s_addr) != vnetwork_addr.s_addr || guest_addr.s_addr == vhost_addr.s_addr || guest_addr.s_addr == vnameserver_addr.s_addr) { @@ -833,11 +835,8 @@ slirp_find_ctl_socket(struct in_addr guest_addr, int guest_port) return NULL; } -size_t slirp_socket_can_recv(int addr_low_byte, int guest_port) +size_t slirp_socket_can_recv(struct in_addr guest_addr, int guest_port) { - struct in_addr guest_addr = { - .s_addr = vnetwork_addr.s_addr | htonl(addr_low_byte) - }; struct iovec iov[2]; struct socket *so; @@ -855,13 +854,10 @@ size_t slirp_socket_can_recv(int addr_low_byte, int guest_port) return sopreprbuf(so, iov, NULL); } -void slirp_socket_recv(int addr_low_byte, int guest_port, const uint8_t *buf, - int size) +void slirp_socket_recv(struct in_addr guest_addr, int guest_port, + const uint8_t *buf, int size) { int ret; - struct in_addr guest_addr = { - .s_addr = vnetwork_addr.s_addr | htonl(addr_low_byte) - }; struct socket *so = slirp_find_ctl_socket(guest_addr, guest_port); if (!so) |