dnsmasq: Update to version 2.85

Fixes issue with merged DNS requests in 2.83/2.84 not being
retried on the firsts failed request causing lookup failures.

Also fixes the following security problem in dnsmasq:
* CVE-2021-3448:
  If specifiying the source address or interface to be used
  when contacting upstream name servers such as:
  server=8.8.8.8@1.2.3.4, server=8.8.8.8@1.2.3.4#66 and
  server=8.8.8.8@eth0 then all would use the same socket
  bound to the explicitly configured port. Now only
  server=8.8.8.8@1.2.3.4#66 will use the explicitly
  configured port and the others random source ports.

Remove upstreamed patches and update remaining patch.

Signed-off-by: Alan Swanson <reiver@improbability.net>
[refreshed old runtime support patch]
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
(cherry picked from commit 3980daffa4e284377cd1ae803fba78331c1fc40b)

4 files changed, 6 insertions, 92 deletions

diff --git a/package/network/services/dnsmasq/Makefile b/package/network/services/dnsmasq/Makefile
index bc70931400..90a81b5f65 100644
--- a/package/network/services/dnsmasq/Makefile
+++ b/package/network/services/dnsmasq/Makefile
@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=dnsmasq
-PKG_UPSTREAM_VERSION:=2.84
+PKG_UPSTREAM_VERSION:=2.85
 PKG_VERSION:=$(subst test,~~test,$(subst rc,~rc,$(PKG_UPSTREAM_VERSION)))
 PKG_RELEASE:=$(AUTORELEASE)
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_UPSTREAM_VERSION).tar.xz
 PKG_SOURCE_URL:=http://thekelleys.org.uk/dnsmasq
-PKG_HASH:=603195c64b73137609b07e1024ae0b37f652b2f5fe467dce66985b3d1850050c
+PKG_HASH:=ad98d3803df687e5b938080f3d25c628fe41c878752d03fbc6199787fee312fa
 
 PKG_LICENSE:=GPL-2.0
 PKG_LICENSE_FILES:=COPYING
diff --git a/package/network/services/dnsmasq/patches/0001-Tweak-sort-order-of-tags-in-get-version.patch b/package/network/services/dnsmasq/patches/0001-Tweak-sort-order-of-tags-in-get-version.patch
deleted file mode 100644
index d7659ea037..0000000000
--- a/package/network/services/dnsmasq/patches/0001-Tweak-sort-order-of-tags-in-get-version.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-From f1204a875e0f16fd645df965db346fc56d2ab1dd Mon Sep 17 00:00:00 2001
-From: Simon Kelley <simon@thekelleys.org.uk>
-Date: Fri, 29 Jan 2021 23:20:06 +0000
-Subject: [PATCH 1/2] Tweak sort order of tags in get-version.
-
-We want to sort such that the most recent/relevant tag is first
-and gets used to set the compiled-in version.
-
-The solution is far from general, but works for the tag formats
-used by dnsmasq. v2.84 sorts before v2.83, but v2.83 sorts
-before v2.83rc1 and 2.83rc1 sorts before v2.83test1
-
-Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
----
- bld/get-version | 7 +++++--
- 1 file changed, 5 insertions(+), 2 deletions(-)
-
-diff --git a/bld/get-version b/bld/get-version
-index e472aab..1d7e7f0 100755
---- a/bld/get-version
-+++ b/bld/get-version
-@@ -9,7 +9,10 @@
- # If we can find one which matches $v[0-9].* then we assume it's
- # a version-number tag, else we just use the whole string.
- # If there is more than one v[0-9].* tag, sort them and use the
--# first. This favours, eg v2.63 over 2.63rc6.
-+# first. The insane arguments to the sort command are to ensure
-+# that, eg v2.64 comes before v2.63, but v2.63 comes before v2.63rc1
-+# and v2.63rc1 comes before v2.63test1
-+
- 
- # Change directory to the toplevel source directory.
- if test -z "$1" || ! test -d "$1" || ! cd "$1"; then
-@@ -28,7 +31,7 @@ else
-      vers=`cat $1/VERSION | sed 's/[(), ]/,/ g' | tr ',' '\n' | grep ^v[0-9]`
- 
-      if [ $? -eq 0 ]; then
--         echo "${vers}" | sort -r | head -n 1 | sed 's/^v//'
-+         echo "${vers}" | sort -k1.2,1.5r -k 1.6,1.6 -k1.8,1.9r -k1.10,1.11r | head -n 1 | sed 's/^v//'
-      else
-          cat $1/VERSION
-      fi
--- 
-2.24.3 (Apple Git-128)
-
diff --git a/package/network/services/dnsmasq/patches/0002-Tweak-f1204a875e0f16fd645df965db346fc56d2ab1dd.patch b/package/network/services/dnsmasq/patches/0002-Tweak-f1204a875e0f16fd645df965db346fc56d2ab1dd.patch
deleted file mode 100644
index 255507ced9..0000000000
--- a/package/network/services/dnsmasq/patches/0002-Tweak-f1204a875e0f16fd645df965db346fc56d2ab1dd.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-From cfcafdd27c74dc187fe96a9cfa88b1aef53540a0 Mon Sep 17 00:00:00 2001
-From: Simon Kelley <simon@thekelleys.org.uk>
-Date: Mon, 1 Feb 2021 23:46:43 +0000
-Subject: [PATCH 2/2] Tweak f1204a875e0f16fd645df965db346fc56d2ab1dd
-
-This gets, eg, v2.65test1 and v2.65test11 in the correct order.
-
-Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
----
- bld/get-version | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/bld/get-version b/bld/get-version
-index 1d7e7f0..1f51768 100755
---- a/bld/get-version
-+++ b/bld/get-version
-@@ -31,7 +31,7 @@ else
-      vers=`cat $1/VERSION | sed 's/[(), ]/,/ g' | tr ',' '\n' | grep ^v[0-9]`
- 
-      if [ $? -eq 0 ]; then
--         echo "${vers}" | sort -k1.2,1.5r -k 1.6,1.6 -k1.8,1.9r -k1.10,1.11r | head -n 1 | sed 's/^v//'
-+         echo "${vers}" | sort -k1.2,1.5Vr -k1.6,1.6 -k1.8,1.9Vr -k1.10,1.11Vr | head -n 1 | sed 's/^v//'
-      else
-          cat $1/VERSION
-      fi
--- 
-2.24.3 (Apple Git-128)
-
diff --git a/package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch b/package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch
index bd11806ae0..b601bce1a9 100644
--- a/package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch
+++ b/package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch
@@ -1,4 +1,4 @@
-From 7df4c681678612d196b4e1eec24963d181fdb28a Mon Sep 17 00:00:00 2001
+From 02fbe60e1c7e74d2ba57109575e7bfc238b1b5d4 Mon Sep 17 00:00:00 2001
 From: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
 Date: Sun, 5 Apr 2020 17:18:23 +0100
 Subject: [PATCH] drop runtime old kernel support
@@ -8,9 +8,8 @@ Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
  src/dnsmasq.c |  4 ----
  src/dnsmasq.h |  5 +---
  src/ipset.c   | 64 ++++-----------------------------------------------
- src/netlink.c |  3 +--
  src/util.c    | 19 ---------------
- 5 files changed, 6 insertions(+), 89 deletions(-)
+ 4 files changed, 5 insertions(+), 87 deletions(-)
 
 --- a/src/dnsmasq.c
 +++ b/src/dnsmasq.c
@@ -27,7 +26,7 @@ Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
  
 --- a/src/dnsmasq.h
 +++ b/src/dnsmasq.h
-@@ -1125,7 +1125,7 @@ extern struct daemon {
+@@ -1144,7 +1144,7 @@ extern struct daemon {
    int inotifyfd;
  #endif
  #if defined(HAVE_LINUX_NETWORK)
@@ -36,7 +35,7 @@ Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
  #elif defined(HAVE_BSD_NETWORK)
    int dhcp_raw_fd, dhcp_icmp_fd, routefd;
  #endif
-@@ -1306,9 +1306,6 @@ int read_write(int fd, unsigned char *pa
+@@ -1326,9 +1326,6 @@ int read_write(int fd, unsigned char *pa
  void close_fds(long max_fd, int spare1, int spare2, int spare3);
  int wildcard_match(const char* wildcard, const char* match);
  int wildcard_matchn(const char* wildcard, const char* match, int num);
@@ -139,18 +138,6 @@ Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
  
    if (ret == -1)
       my_syslog(LOG_ERR, _("failed to update ipset %s: %s"), setname, strerror(errno));
---- a/src/netlink.c
-+++ b/src/netlink.c
-@@ -92,8 +92,7 @@ char *netlink_init(void)
-   iov.iov_len = 100;
-   iov.iov_base = safe_malloc(iov.iov_len);
-   
--  if (daemon->kernel_version >= KERNEL_VERSION(2,6,30) &&
--      setsockopt(daemon->netlinkfd, SOL_NETLINK, NETLINK_NO_ENOBUFS, &opt, sizeof(opt)) == -1)
-+  if (setsockopt(daemon->netlinkfd, SOL_NETLINK, NETLINK_NO_ENOBUFS, &opt, sizeof(opt)) == -1)
-     return _("warning: failed to set NETLINK_NO_ENOBUFS on netlink socket");
-   
-   return NULL;
 --- a/src/util.c
 +++ b/src/util.c
 @@ -786,22 +786,3 @@ int wildcard_matchn(const char* wildcard