diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2016-03-20 12:29:54 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2016-04-01 17:51:55 +0200 |
| commit | 0b11c036620251f8f831ab8f0d9a7280ec1c4813 (patch) | |
| tree | c8f390cd7e7cc6986b6a5febcdcaf5c99bc6012f /net | |
| parent | de1d099a448beb2ec39af4bd9ce4dd6452a18cb5 (diff) | |
slirp: Allow disabling IPv4 or IPv6
Add ipv4 and ipv6 boolean options, so the user can setup IPv4-only and
IPv6-only network environments.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/slirp.c | 36 |
1 files changed, 30 insertions, 6 deletions
diff --git a/net/slirp.c b/net/slirp.c index 791a8f7b89..31630f005c 100644 --- a/net/slirp.c +++ b/net/slirp.c @@ -136,8 +136,8 @@ 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, - const char *vprefix6, int vprefix6_len, + 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, @@ -165,6 +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; } @@ -309,8 +322,8 @@ static int net_slirp_init(NetClientState *peer, const char *model, s = DO_UPCAST(SlirpState, nc, nc); - s->slirp = slirp_init(restricted, net, mask, host, - ip6_prefix, vprefix6_len, ip6_host, + 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); @@ -813,10 +826,20 @@ 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->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) : NULL; @@ -828,8 +851,9 @@ 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->ipv6_prefix, user->ipv6_prefixlen, + 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, |