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dnsmasq: backport fixes

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This should fix some error messages shown in the log like this one:
dnsmasq[16020]: failed to send packet: Network unreachable
dnsmasq[16020]: failed to send packet: Address family not supported by protocol

Fixes: e87c0d934c ("dnsmasq: Update to version 2.83")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Hauke Mehrtens 2021-01-23 20:28:00 +01:00
parent 9999c87d3a
commit 11f4918ebb
4 changed files with 97 additions and 1 deletions
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2
package/network/services/dnsmasq/Makefile
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@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=dnsmasq
PKG_UPSTREAM_VERSION:=2.80
PKG_VERSION:=$(subst test,~~test,$(subst rc,~rc,$(PKG_UPSTREAM_VERSION)))
PKG_RELEASE:=16.2
PKG_RELEASE:=16.3
PKG_SOURCE:=$(PKG_NAME)-$(PKG_UPSTREAM_VERSION).tar.xz
PKG_SOURCE_URL:=http://thekelleys.org.uk/dnsmasq

57
package/network/services/dnsmasq/patches/0120-Move-fd-into-frec_src-fixes-15b60ddf935a531269bb8c68.patch Normal file
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@ -0,0 +1,57 @@
From 04490bf622ac84891aad6f2dd2edf83725decdee Mon Sep 17 00:00:00 2001
From: Simon Kelley <simon@thekelleys.org.uk>
Date: Fri, 22 Jan 2021 16:49:12 +0000
Subject: Move fd into frec_src, fixes 15b60ddf935a531269bb8c68198de012a4967156
If identical queries from IPv4 and IPv6 sources are combined by the
new code added in 15b60ddf935a531269bb8c68198de012a4967156 then replies
can end up being sent via the wrong family of socket. The ->fd
should be per query, not per-question.
In bind-interfaces mode, this could also result in replies being sent
via the wrong socket even when IPv4/IPV6 issues are not in play.
---
src/dnsmasq.h | 3 ++-
src/forward.c | 4 ++--
2 files changed, 4 insertions(+), 3 deletions(-)
--- a/src/dnsmasq.h
+++ b/src/dnsmasq.h
@@ -653,6 +653,7 @@ struct frec {
union mysockaddr source;
union all_addr dest;
unsigned int iface, log_id;
+ int fd;
unsigned short orig_id;
struct frec_src *next;
} frec_src;
@@ -660,7 +661,7 @@ struct frec {
struct randfd *rfd4;
struct randfd *rfd6;
unsigned short new_id;
- int fd, forwardall, flags;
+ int forwardall, flags;
time_t time;
unsigned char *hash[HASH_SIZE];
#ifdef HAVE_DNSSEC
--- a/src/forward.c
+++ b/src/forward.c
@@ -394,8 +394,8 @@ static int forward_query(int udpfd, unio
forward->frec_src.dest = *dst_addr;
forward->frec_src.iface = dst_iface;
forward->frec_src.next = NULL;
+ forward->frec_src.fd = udpfd;
forward->new_id = get_id();
- forward->fd = udpfd;
memcpy(forward->hash, hash, HASH_SIZE);
forward->forwardall = 0;
forward->flags = fwd_flags;
@@ -1284,7 +1284,7 @@ void reply_query(int fd, int family, tim
dump_packet(DUMP_REPLY, daemon->packet, (size_t)nn, NULL, &src->source);
#endif
- send_from(forward->fd, option_bool(OPT_NOWILD) || option_bool (OPT_CLEVERBIND), daemon->packet, nn,
+ send_from(src->fd, option_bool(OPT_NOWILD) || option_bool (OPT_CLEVERBIND), daemon->packet, nn,
&src->source, &src->dest, src->iface);
if (option_bool(OPT_EXTRALOG) && src != &forward->frec_src)

19
package/network/services/dnsmasq/patches/0121-Fix-to-75e2f0aec33e58ef5b8d4d107d821c215a52827c.patch Normal file
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@ -0,0 +1,19 @@
From 12af2b171de0d678d98583e2190789e544440e02 Mon Sep 17 00:00:00 2001
From: Simon Kelley <simon@thekelleys.org.uk>
Date: Fri, 22 Jan 2021 18:24:03 +0000
Subject: Fix to 75e2f0aec33e58ef5b8d4d107d821c215a52827c
---
src/forward.c | 1 +
1 file changed, 1 insertion(+)
--- a/src/forward.c
+++ b/src/forward.c
@@ -370,6 +370,7 @@ static int forward_query(int udpfd, unio
new->dest = *dst_addr;
new->log_id = daemon->log_id;
new->iface = dst_iface;
+ forward->frec_src.fd = udpfd;
}
return 1;

20
package/network/services/dnsmasq/patches/0123-Fix-for-12af2b171de0d678d98583e2190789e544440e02.patch Normal file
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@ -0,0 +1,20 @@
From 3f535da79e7a42104543ef5c7b5fa2bed819a78b Mon Sep 17 00:00:00 2001
From: Simon Kelley <simon@thekelleys.org.uk>
Date: Fri, 22 Jan 2021 22:26:25 +0000
Subject: Fix for 12af2b171de0d678d98583e2190789e544440e02
---
src/forward.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/src/forward.c
+++ b/src/forward.c
@@ -370,7 +370,7 @@ static int forward_query(int udpfd, unio
new->dest = *dst_addr;
new->log_id = daemon->log_id;
new->iface = dst_iface;
- forward->frec_src.fd = udpfd;
+ new->fd = udpfd;
}
return 1;