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https://gitlab.com/qemu-project/qemu
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Port -net user to QemuOpts
The handling of guestfwd and hostfwd requires the previous changes to allow multiple values for each parameter. The only way to access those multiple values is to use qemu_opt_foreach(). Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Mark McLoughlin
Anthony Liguori
parent
f83c6e1085
commit
ec302ffdfd
1 changed files with 161 additions and 106 deletions
267
net.c
267
net.c
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@ -2458,6 +2458,102 @@ static int net_init_nic(QemuOpts *opts, Monitor *mon)
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return idx;
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}
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static int net_init_slirp_configs(const char *name, const char *value, void *opaque)
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{
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struct slirp_config_str *config;
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if (strcmp(name, "hostfwd") != 0 && strcmp(name, "guestfwd") != 0) {
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return 0;
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}
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config = qemu_mallocz(sizeof(*config));
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pstrcpy(config->str, sizeof(config->str), value);
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if (!strcmp(name, "hostfwd")) {
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config->flags = SLIRP_CFG_HOSTFWD;
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}
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config->next = slirp_configs;
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slirp_configs = config;
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return 0;
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}
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static int net_init_slirp(QemuOpts *opts, Monitor *mon)
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{
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VLANState *vlan;
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struct slirp_config_str *config;
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const char *name;
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const char *vhost;
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const char *vhostname;
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const char *vdhcp_start;
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const char *vnamesrv;
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const char *tftp_export;
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const char *bootfile;
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const char *smb_export;
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const char *vsmbsrv;
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char *vnet = NULL;
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int restricted = 0;
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int ret;
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vlan = qemu_find_vlan(qemu_opt_get_number(opts, "vlan", 0), 1);
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name = qemu_opt_get(opts, "name");
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vhost = qemu_opt_get(opts, "host");
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vhostname = qemu_opt_get(opts, "hostname");
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vdhcp_start = qemu_opt_get(opts, "dhcpstart");
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vnamesrv = qemu_opt_get(opts, "dns");
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tftp_export = qemu_opt_get(opts, "tftp");
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bootfile = qemu_opt_get(opts, "bootfile");
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smb_export = qemu_opt_get(opts, "smb");
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vsmbsrv = qemu_opt_get(opts, "smbserver");
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if (qemu_opt_get(opts, "ip")) {
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const char *ip = qemu_opt_get(opts, "ip");
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int l = strlen(ip) + strlen("/24") + 1;
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vnet = qemu_malloc(l);
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/* emulate legacy ip= parameter */
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pstrcpy(vnet, l, ip);
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pstrcat(vnet, l, "/24");
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}
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if (qemu_opt_get(opts, "net")) {
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if (vnet) {
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qemu_free(vnet);
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}
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vnet = qemu_strdup(qemu_opt_get(opts, "net"));
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}
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if (qemu_opt_get(opts, "restrict") &&
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qemu_opt_get(opts, "restrict")[0] == 'y') {
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restricted = 1;
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}
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qemu_opt_foreach(opts, net_init_slirp_configs, NULL, 0);
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ret = net_slirp_init(vlan, "user", name, restricted, vnet, vhost,
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vhostname, tftp_export, bootfile, vdhcp_start,
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vnamesrv, smb_export, vsmbsrv);
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while (slirp_configs) {
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config = slirp_configs;
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slirp_configs = config->next;
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qemu_free(config);
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}
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if (ret != -1) {
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vlan->nb_host_devs++;
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}
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qemu_free(vnet);
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return ret;
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}
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#define NET_COMMON_PARAMS_DESC \
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{ \
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.name = "type", \
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@ -2513,6 +2609,68 @@ static struct {
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},
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{ /* end of list */ }
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},
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#ifdef CONFIG_SLIRP
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}, {
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.type = "user",
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.init = net_init_slirp,
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.desc = {
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NET_COMMON_PARAMS_DESC,
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{
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.name = "hostname",
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.type = QEMU_OPT_STRING,
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.help = "client hostname reported by the builtin DHCP server",
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}, {
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.name = "restrict",
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.type = QEMU_OPT_STRING,
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.help = "isolate the guest from the host (y|yes|n|no)",
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}, {
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.name = "ip",
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.type = QEMU_OPT_STRING,
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.help = "legacy parameter, use net= instead",
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}, {
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.name = "net",
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.type = QEMU_OPT_STRING,
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.help = "IP address and optional netmask",
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}, {
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.name = "host",
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.type = QEMU_OPT_STRING,
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.help = "guest-visible address of the host",
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}, {
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.name = "tftp",
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.type = QEMU_OPT_STRING,
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.help = "root directory of the built-in TFTP server",
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}, {
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.name = "bootfile",
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.type = QEMU_OPT_STRING,
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.help = "BOOTP filename, for use with tftp=",
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}, {
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.name = "dhcpstart",
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.type = QEMU_OPT_STRING,
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.help = "the first of the 16 IPs the built-in DHCP server can assign",
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}, {
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.name = "dns",
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.type = QEMU_OPT_STRING,
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.help = "guest-visible address of the virtual nameserver",
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}, {
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.name = "smb",
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.type = QEMU_OPT_STRING,
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.help = "root directory of the built-in SMB server",
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}, {
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.name = "smbserver",
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.type = QEMU_OPT_STRING,
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.help = "IP address of the built-in SMB server",
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}, {
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.name = "hostfwd",
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.type = QEMU_OPT_STRING,
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.help = "guest port number to forward incoming TCP or UDP connections",
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}, {
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.name = "guestfwd",
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.type = QEMU_OPT_STRING,
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.help = "IP address and port to forward guest TCP connections",
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},
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{ /* end of list */ }
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},
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#endif
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},
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{ /* end of list */ }
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};
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@ -2554,7 +2712,8 @@ int net_client_init(Monitor *mon, const char *device, const char *p)
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char *name = NULL;
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if (!strcmp(device, "none") ||
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!strcmp(device, "nic")) {
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!strcmp(device, "nic") ||
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!strcmp(device, "user")) {
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QemuOpts *opts;
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opts = qemu_opts_parse(&qemu_net_opts, p, NULL);
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@ -2578,111 +2737,7 @@ int net_client_init(Monitor *mon, const char *device, const char *p)
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}
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#ifdef CONFIG_SLIRP
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if (!strcmp(device, "user")) {
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static const char * const slirp_params[] = {
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"vlan", "name", "hostname", "restrict", "ip", "net", "host",
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"tftp", "bootfile", "dhcpstart", "dns", "smb", "smbserver",
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"hostfwd", "guestfwd", NULL
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};
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struct slirp_config_str *config;
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int restricted = 0;
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char *vnet = NULL;
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char *vhost = NULL;
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char *vhostname = NULL;
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char *tftp_export = NULL;
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char *bootfile = NULL;
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char *vdhcp_start = NULL;
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char *vnamesrv = NULL;
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char *smb_export = NULL;
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char *vsmbsrv = NULL;
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const char *q;
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if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
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qemu_error("invalid parameter '%s' in '%s'\n", buf, p);
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ret = -1;
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goto out;
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}
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if (get_param_value(buf, sizeof(buf), "ip", p)) {
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int vnet_buflen = strlen(buf) + strlen("/24") + 1;
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/* emulate legacy parameter */
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vnet = qemu_malloc(vnet_buflen);
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pstrcpy(vnet, vnet_buflen, buf);
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pstrcat(vnet, vnet_buflen, "/24");
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}
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if (get_param_value(buf, sizeof(buf), "net", p)) {
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vnet = qemu_strdup(buf);
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}
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if (get_param_value(buf, sizeof(buf), "host", p)) {
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vhost = qemu_strdup(buf);
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}
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if (get_param_value(buf, sizeof(buf), "hostname", p)) {
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vhostname = qemu_strdup(buf);
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}
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if (get_param_value(buf, sizeof(buf), "restrict", p)) {
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restricted = (buf[0] == 'y') ? 1 : 0;
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}
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if (get_param_value(buf, sizeof(buf), "dhcpstart", p)) {
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vdhcp_start = qemu_strdup(buf);
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}
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if (get_param_value(buf, sizeof(buf), "dns", p)) {
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vnamesrv = qemu_strdup(buf);
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}
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if (get_param_value(buf, sizeof(buf), "tftp", p)) {
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tftp_export = qemu_strdup(buf);
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}
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if (get_param_value(buf, sizeof(buf), "bootfile", p)) {
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bootfile = qemu_strdup(buf);
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}
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if (get_param_value(buf, sizeof(buf), "smb", p)) {
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smb_export = qemu_strdup(buf);
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if (get_param_value(buf, sizeof(buf), "smbserver", p)) {
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vsmbsrv = qemu_strdup(buf);
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}
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}
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q = p;
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while (1) {
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config = qemu_malloc(sizeof(*config));
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if (!get_next_param_value(config->str, sizeof(config->str),
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"hostfwd", &q)) {
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break;
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}
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config->flags = SLIRP_CFG_HOSTFWD;
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config->next = slirp_configs;
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slirp_configs = config;
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config = NULL;
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}
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q = p;
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while (1) {
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config = qemu_malloc(sizeof(*config));
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if (!get_next_param_value(config->str, sizeof(config->str),
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"guestfwd", &q)) {
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break;
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}
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config->flags = 0;
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config->next = slirp_configs;
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slirp_configs = config;
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config = NULL;
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}
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qemu_free(config);
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vlan->nb_host_devs++;
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ret = net_slirp_init(vlan, device, name, restricted, vnet, vhost,
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vhostname, tftp_export, bootfile, vdhcp_start,
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vnamesrv, smb_export, vsmbsrv);
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while (slirp_configs) {
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config = slirp_configs;
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slirp_configs = config->next;
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qemu_free(config);
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}
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qemu_free(vnet);
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qemu_free(vhost);
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qemu_free(vhostname);
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qemu_free(tftp_export);
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qemu_free(bootfile);
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qemu_free(vdhcp_start);
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qemu_free(vnamesrv);
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qemu_free(smb_export);
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qemu_free(vsmbsrv);
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} else if (!strcmp(device, "channel")) {
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if (!strcmp(device, "channel")) {
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if (QTAILQ_EMPTY(&slirp_stacks)) {
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struct slirp_config_str *config;
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