diff options
Diffstat (limited to 'qemu/net/slirp.c')
| -rw-r--r-- | qemu/net/slirp.c | 119 |
1 files changed, 108 insertions, 11 deletions
diff --git a/qemu/net/slirp.c b/qemu/net/slirp.c index 7657b38fd..31630f005 100644 --- a/qemu/net/slirp.c +++ b/qemu/net/slirp.c @@ -21,9 +21,9 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ +#include "qemu/osdep.h" #include "net/slirp.h" -#include "config-host.h" #ifndef _WIN32 #include <pwd.h> @@ -36,7 +36,9 @@ #include "qemu/error-report.h" #include "qemu/sockets.h" #include "slirp/libslirp.h" +#include "slirp/ip6.h" #include "sysemu/char.h" +#include "qemu/cutils.h" static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) { @@ -134,11 +136,14 @@ static NetClientInfo net_slirp_info = { static int net_slirp_init(NetClientState *peer, const char *model, const char *name, int restricted, - const char *vnetwork, const char *vhost, + bool ipv4, const char *vnetwork, const char *vhost, + bool ipv6, const char *vprefix6, int vprefix6_len, + const char *vhost6, const char *vhostname, const char *tftp_export, const char *bootfile, const char *vdhcp_start, - const char *vnameserver, const char *smb_export, - const char *vsmbserver, const char **dnssearch) + const char *vnameserver, const char *vnameserver6, + const char *smb_export, const char *vsmbserver, + const char **dnssearch) { /* default settings according to historic slirp */ struct in_addr net = { .s_addr = htonl(0x0a000200) }; /* 10.0.2.0 */ @@ -146,6 +151,9 @@ static int net_slirp_init(NetClientState *peer, const char *model, 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 */ + struct in6_addr ip6_prefix; + struct in6_addr ip6_host; + struct in6_addr ip6_dns; #ifndef _WIN32 struct in_addr smbsrv = { .s_addr = 0 }; #endif @@ -157,6 +165,19 @@ static int net_slirp_init(NetClientState *peer, const char *model, char *end; struct slirp_config_str *config; + if (!ipv4 && (vnetwork || vhost || vnameserver)) { + return -1; + } + + if (!ipv6 && (vprefix6 || vhost6 || vnameserver6)) { + return -1; + } + + if (!ipv4 && !ipv6) { + /* It doesn't make sense to disable both */ + return -1; + } + if (!tftp_export) { tftp_export = legacy_tftp_prefix; } @@ -235,6 +256,64 @@ static int net_slirp_init(NetClientState *peer, const char *model, } #endif +#if defined(_WIN32) && (_WIN32_WINNT < 0x0600) + /* No inet_pton helper before Vista... */ + if (vprefix6) { + /* Unsupported */ + return -1; + } + memset(&ip6_prefix, 0, sizeof(ip6_prefix)); + ip6_prefix.s6_addr[0] = 0xfe; + ip6_prefix.s6_addr[1] = 0xc0; +#else + if (!vprefix6) { + vprefix6 = "fec0::"; + } + if (!inet_pton(AF_INET6, vprefix6, &ip6_prefix)) { + return -1; + } +#endif + + if (!vprefix6_len) { + vprefix6_len = 64; + } + if (vprefix6_len < 0 || vprefix6_len > 126) { + return -1; + } + + if (vhost6) { +#if defined(_WIN32) && (_WIN32_WINNT < 0x0600) + return -1; +#else + if (!inet_pton(AF_INET6, vhost6, &ip6_host)) { + return -1; + } + if (!in6_equal_net(&ip6_prefix, &ip6_host, vprefix6_len)) { + return -1; + } +#endif + } else { + ip6_host = ip6_prefix; + ip6_host.s6_addr[15] |= 2; + } + + if (vnameserver6) { +#if defined(_WIN32) && (_WIN32_WINNT < 0x0600) + return -1; +#else + if (!inet_pton(AF_INET6, vnameserver6, &ip6_dns)) { + return -1; + } + if (!in6_equal_net(&ip6_prefix, &ip6_dns, vprefix6_len)) { + return -1; + } +#endif + } else { + ip6_dns = ip6_prefix; + ip6_dns.s6_addr[15] |= 3; + } + + nc = qemu_new_net_client(&net_slirp_info, peer, model, name); snprintf(nc->info_str, sizeof(nc->info_str), @@ -243,8 +322,10 @@ static int net_slirp_init(NetClientState *peer, const char *model, s = DO_UPCAST(SlirpState, nc, nc); - s->slirp = slirp_init(restricted, net, mask, host, vhostname, - tftp_export, bootfile, dhcp, dns, dnssearch, s); + s->slirp = slirp_init(restricted, ipv4, net, mask, host, + ipv6, ip6_prefix, vprefix6_len, ip6_host, + vhostname, tftp_export, bootfile, dhcp, + dns, ip6_dns, dnssearch, s); QTAILQ_INSERT_TAIL(&slirp_stacks, s, entry); for (config = slirp_configs; config; config = config->next) { @@ -745,9 +826,19 @@ int net_init_slirp(const NetClientOptions *opts, const char *name, int ret; const NetdevUserOptions *user; const char **dnssearch; + bool ipv4 = true, ipv6 = true; - assert(opts->kind == NET_CLIENT_OPTIONS_KIND_USER); - user = opts->user; + assert(opts->type == NET_CLIENT_OPTIONS_KIND_USER); + user = opts->u.user.data; + + if ((user->has_ipv6 && user->ipv6 && !user->has_ipv4) || + (user->has_ipv4 && !user->ipv4)) { + ipv4 = 0; + } + if ((user->has_ipv4 && user->ipv4 && !user->has_ipv6) || + (user->has_ipv6 && !user->ipv6)) { + ipv6 = 0; + } vnet = user->has_net ? g_strdup(user->net) : user->has_ip ? g_strdup_printf("%s/24", user->ip) : @@ -760,9 +851,12 @@ int net_init_slirp(const NetClientOptions *opts, const char *name, net_init_slirp_configs(user->hostfwd, SLIRP_CFG_HOSTFWD); net_init_slirp_configs(user->guestfwd, 0); - ret = net_slirp_init(peer, "user", name, user->q_restrict, vnet, - user->host, user->hostname, user->tftp, - user->bootfile, user->dhcpstart, user->dns, user->smb, + ret = net_slirp_init(peer, "user", name, user->q_restrict, + ipv4, vnet, user->host, + ipv6, user->ipv6_prefix, user->ipv6_prefixlen, + user->ipv6_host, user->hostname, user->tftp, + user->bootfile, user->dhcpstart, + user->dns, user->ipv6_dns, user->smb, user->smbserver, dnssearch); while (slirp_configs) { @@ -784,6 +878,9 @@ int net_slirp_parse_legacy(QemuOptsList *opts_list, const char *optarg, int *ret return 0; } + error_report("The '-net channel' option is deprecated. " + "Please use '-netdev user,guestfwd=...' instead."); + /* handle legacy -net channel,port:chr */ optarg += strlen("channel,"); |