[PATCH] slirp: Allow non-local DNS address when restrict is off
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 --- 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(_prefix, _dns, vprefix6_len)) { +if (restricted && !in6_equal_net(_prefix, _dns, vprefix6_len)) { error_setg(errp, "IPv6 DNS doesn't belong to network"); return -1; } -- 2.23.0
Re: [PATCH] slirp: Allow non-local DNS address when restrict is off
On 01/10/2019 11.04, Philippe Mathieu-Daudé wrote: > Hi Samuel, > > On 9/29/19 8:13 PM, Samuel Thibault wrote: >> 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. >> >> This fixes LP 1010484. > > Wow, 7 years old... > > Can you use this format, easier to understand for newcomers: > > Fixes: https://bugs.launchpad.net/qemu/+bug/1010484 That should be "Buglink:" instead. "Fixes:" is for referencing previous commits. See our submit-a-patch page for more information: https://wiki.qemu.org/Contribute/SubmitAPatch#Write_a_meaningful_commit_message Thomas
Re: [PATCH] slirp: Allow non-local DNS address when restrict is off
Hi Samuel, On 9/29/19 8:13 PM, Samuel Thibault wrote: 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. This fixes LP 1010484. Wow, 7 years old... Can you use this format, easier to understand for newcomers: Fixes: https://bugs.launchpad.net/qemu/+bug/1010484 Signed-off-by: Samuel Thibault --- net/slirp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/slirp.c b/net/slirp.c index f42f496641..4d158b0542 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; } What about the IPv6 DNS? Regards, Phil.
Re: [PATCH] slirp: Allow non-local DNS address when restrict is off
On Sun, Sep 29, 2019 at 10:13 PM Samuel Thibault wrote: > > 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. > > This fixes LP 1010484. > > Signed-off-by: Samuel Thibault Reviewed-by: Marc-André Lureau > --- > net/slirp.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/net/slirp.c b/net/slirp.c > index f42f496641..4d158b0542 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; > } > -- > 2.23.0 > > -- Marc-André Lureau
[PATCH] slirp: Allow non-local DNS address when restrict is off
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. This fixes LP 1010484. Signed-off-by: Samuel Thibault --- net/slirp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/slirp.c b/net/slirp.c index f42f496641..4d158b0542 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; } -- 2.23.0