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authorFam Zheng <famz@redhat.com>2018-09-14 15:26:16 +0800
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2018-10-21 21:24:55 +0200
commit0fca92b9077af9817c04545cdfc519fe95c6fde9 (patch)
tree2b9a1093bebb6adc699d5031e623f25f243e9259 /net
parent6e157a0339793bb081705f52318fc77afd10addf (diff)
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slirp: Implement RFC2132 TFTP server name
This new usernet option can be used to add data for option 66 (tftp server name) in the BOOTP reply, which is useful in PXE based automatic OS install such as OpenBSD. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Tested-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Diffstat (limited to 'net')
-rw-r--r--net/slirp.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/net/slirp.c b/net/slirp.c
index da6c0a1..f6dc039 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -150,6 +150,7 @@ static int net_slirp_init(NetClientState *peer, const char *model,
const char *vnameserver, const char *vnameserver6,
const char *smb_export, const char *vsmbserver,
const char **dnssearch, const char *vdomainname,
+ const char *tftp_server_name,
Error **errp)
{
/* default settings according to historic slirp */
@@ -360,6 +361,11 @@ static int net_slirp_init(NetClientState *peer, const char *model,
return -1;
}
+ if (tftp_server_name && strlen(tftp_server_name) > 255) {
+ error_setg(errp, "'tftp-server-name' parameter cannot exceed 255 bytes");
+ return -1;
+ }
+
nc = qemu_new_net_client(&net_slirp_info, peer, model, name);
snprintf(nc->info_str, sizeof(nc->info_str),
@@ -370,7 +376,8 @@ static int net_slirp_init(NetClientState *peer, const char *model,
s->slirp = slirp_init(restricted, ipv4, net, mask, host,
ipv6, ip6_prefix, vprefix6_len, ip6_host,
- vhostname, tftp_export, bootfile, dhcp,
+ vhostname, tftp_server_name,
+ tftp_export, bootfile, dhcp,
dns, ip6_dns, dnssearch, vdomainname, s);
QTAILQ_INSERT_TAIL(&slirp_stacks, s, entry);
@@ -907,7 +914,8 @@ int net_init_slirp(const Netdev *netdev, const char *name,
user->ipv6_host, user->hostname, user->tftp,
user->bootfile, user->dhcpstart,
user->dns, user->ipv6_dns, user->smb,
- user->smbserver, dnssearch, user->domainname, errp);
+ user->smbserver, dnssearch, user->domainname,
+ user->tftp_server_name, errp);
while (slirp_configs) {
config = slirp_configs;