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[PATCHv2] slirp: Allow non-local DNS address when restrict is off
From: |
Samuel Thibault |
Subject: |
[PATCHv2] slirp: Allow non-local DNS address when restrict is off |
Date: |
Tue, 1 Oct 2019 17:40:57 +0200 |
This can be used to set a DNS server to be used by the guest which is
different from the one configured on the host.
Buglink: https://bugs.launchpad.net/qemu/+bug/1010484
Signed-off-by: Samuel Thibault <address@hidden>
---
Difference from first version:
- handle DNS IPv6 as well
- reference bug with Buglink
net/slirp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/slirp.c b/net/slirp.c
index f42f496641..c4334ee876 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -456,7 +456,7 @@ static int net_slirp_init(NetClientState *peer, const char
*model,
error_setg(errp, "Failed to parse DNS");
return -1;
}
- if ((dns.s_addr & mask.s_addr) != net.s_addr) {
+ if (restricted && (dns.s_addr & mask.s_addr) != net.s_addr) {
error_setg(errp, "DNS doesn't belong to network");
return -1;
}
@@ -522,7 +522,7 @@ static int net_slirp_init(NetClientState *peer, const char
*model,
error_setg(errp, "Failed to parse IPv6 DNS");
return -1;
}
- if (!in6_equal_net(&ip6_prefix, &ip6_dns, vprefix6_len)) {
+ if (restricted && !in6_equal_net(&ip6_prefix, &ip6_dns, vprefix6_len))
{
error_setg(errp, "IPv6 DNS doesn't belong to network");
return -1;
}
--
2.23.0
- [PATCHv2] slirp: Allow non-local DNS address when restrict is off,
Samuel Thibault <=