diff --git a/net.c b/net.c index 30f477a5f0..3ff4e4f877 100644 --- a/net.c +++ b/net.c @@ -2458,6 +2458,102 @@ static int net_init_nic(QemuOpts *opts, Monitor *mon) return idx; } +static int net_init_slirp_configs(const char *name, const char *value, void *opaque) +{ + struct slirp_config_str *config; + + if (strcmp(name, "hostfwd") != 0 && strcmp(name, "guestfwd") != 0) { + return 0; + } + + config = qemu_mallocz(sizeof(*config)); + + pstrcpy(config->str, sizeof(config->str), value); + + if (!strcmp(name, "hostfwd")) { + config->flags = SLIRP_CFG_HOSTFWD; + } + + config->next = slirp_configs; + slirp_configs = config; + + return 0; +} + +static int net_init_slirp(QemuOpts *opts, Monitor *mon) +{ + VLANState *vlan; + struct slirp_config_str *config; + const char *name; + const char *vhost; + const char *vhostname; + const char *vdhcp_start; + const char *vnamesrv; + const char *tftp_export; + const char *bootfile; + const char *smb_export; + const char *vsmbsrv; + char *vnet = NULL; + int restricted = 0; + int ret; + + vlan = qemu_find_vlan(qemu_opt_get_number(opts, "vlan", 0), 1); + + name = qemu_opt_get(opts, "name"); + + vhost = qemu_opt_get(opts, "host"); + vhostname = qemu_opt_get(opts, "hostname"); + vdhcp_start = qemu_opt_get(opts, "dhcpstart"); + vnamesrv = qemu_opt_get(opts, "dns"); + tftp_export = qemu_opt_get(opts, "tftp"); + bootfile = qemu_opt_get(opts, "bootfile"); + smb_export = qemu_opt_get(opts, "smb"); + vsmbsrv = qemu_opt_get(opts, "smbserver"); + + if (qemu_opt_get(opts, "ip")) { + const char *ip = qemu_opt_get(opts, "ip"); + int l = strlen(ip) + strlen("/24") + 1; + + vnet = qemu_malloc(l); + + /* emulate legacy ip= parameter */ + pstrcpy(vnet, l, ip); + pstrcat(vnet, l, "/24"); + } + + if (qemu_opt_get(opts, "net")) { + if (vnet) { + qemu_free(vnet); + } + vnet = qemu_strdup(qemu_opt_get(opts, "net")); + } + + if (qemu_opt_get(opts, "restrict") && + qemu_opt_get(opts, "restrict")[0] == 'y') { + restricted = 1; + } + + qemu_opt_foreach(opts, net_init_slirp_configs, NULL, 0); + + ret = net_slirp_init(vlan, "user", name, restricted, vnet, vhost, + vhostname, tftp_export, bootfile, vdhcp_start, + vnamesrv, smb_export, vsmbsrv); + + while (slirp_configs) { + config = slirp_configs; + slirp_configs = config->next; + qemu_free(config); + } + + if (ret != -1) { + vlan->nb_host_devs++; + } + + qemu_free(vnet); + + return ret; +} + #define NET_COMMON_PARAMS_DESC \ { \ .name = "type", \ @@ -2513,6 +2609,68 @@ static struct { }, { /* end of list */ } }, +#ifdef CONFIG_SLIRP + }, { + .type = "user", + .init = net_init_slirp, + .desc = { + NET_COMMON_PARAMS_DESC, + { + .name = "hostname", + .type = QEMU_OPT_STRING, + .help = "client hostname reported by the builtin DHCP server", + }, { + .name = "restrict", + .type = QEMU_OPT_STRING, + .help = "isolate the guest from the host (y|yes|n|no)", + }, { + .name = "ip", + .type = QEMU_OPT_STRING, + .help = "legacy parameter, use net= instead", + }, { + .name = "net", + .type = QEMU_OPT_STRING, + .help = "IP address and optional netmask", + }, { + .name = "host", + .type = QEMU_OPT_STRING, + .help = "guest-visible address of the host", + }, { + .name = "tftp", + .type = QEMU_OPT_STRING, + .help = "root directory of the built-in TFTP server", + }, { + .name = "bootfile", + .type = QEMU_OPT_STRING, + .help = "BOOTP filename, for use with tftp=", + }, { + .name = "dhcpstart", + .type = QEMU_OPT_STRING, + .help = "the first of the 16 IPs the built-in DHCP server can assign", + }, { + .name = "dns", + .type = QEMU_OPT_STRING, + .help = "guest-visible address of the virtual nameserver", + }, { + .name = "smb", + .type = QEMU_OPT_STRING, + .help = "root directory of the built-in SMB server", + }, { + .name = "smbserver", + .type = QEMU_OPT_STRING, + .help = "IP address of the built-in SMB server", + }, { + .name = "hostfwd", + .type = QEMU_OPT_STRING, + .help = "guest port number to forward incoming TCP or UDP connections", + }, { + .name = "guestfwd", + .type = QEMU_OPT_STRING, + .help = "IP address and port to forward guest TCP connections", + }, + { /* end of list */ } + }, +#endif }, { /* end of list */ } }; @@ -2554,7 +2712,8 @@ int net_client_init(Monitor *mon, const char *device, const char *p) char *name = NULL; if (!strcmp(device, "none") || - !strcmp(device, "nic")) { + !strcmp(device, "nic") || + !strcmp(device, "user")) { QemuOpts *opts; opts = qemu_opts_parse(&qemu_net_opts, p, NULL); @@ -2578,111 +2737,7 @@ 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", "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; - char *vsmbsrv = NULL; - const char *q; - - if (check_params(buf, sizeof(buf), slirp_params, p) < 0) { - qemu_error("invalid parameter '%s' in '%s'\n", buf, p); - ret = -1; - goto out; - } - if (get_param_value(buf, sizeof(buf), "ip", p)) { - int vnet_buflen = strlen(buf) + strlen("/24") + 1; - /* emulate legacy parameter */ - vnet = qemu_malloc(vnet_buflen); - pstrcpy(vnet, vnet_buflen, buf); - pstrcat(vnet, vnet_buflen, "/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)) { - 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), "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); - } - if (get_param_value(buf, sizeof(buf), "bootfile", p)) { - bootfile = qemu_strdup(buf); - } - 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), - "hostfwd", &q)) { - break; - } - config->flags = SLIRP_CFG_HOSTFWD; - config->next = slirp_configs; - slirp_configs = config; - config = NULL; - } - q = p; - while (1) { - config = qemu_malloc(sizeof(*config)); - if (!get_next_param_value(config->str, sizeof(config->str), - "guestfwd", &q)) { - break; - } - config->flags = 0; - config->next = slirp_configs; - slirp_configs = config; - config = NULL; - } - qemu_free(config); - vlan->nb_host_devs++; - ret = net_slirp_init(vlan, device, name, restricted, vnet, vhost, - vhostname, tftp_export, bootfile, vdhcp_start, - vnamesrv, smb_export, vsmbsrv); - while (slirp_configs) { - config = slirp_configs; - slirp_configs = config->next; - qemu_free(config); - } - 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 (!strcmp(device, "channel")) { if (QTAILQ_EMPTY(&slirp_stacks)) { struct slirp_config_str *config;