qemu: bump to 4.1.0 to support Intel VT-x or AMD-v

2025-05-01 05:09:46 +08:00 · 2019-10-27 09:11:42 -07:00 · 2019-10-27 09:11:42 -07:00 · c1f621241b
commit c1f621241b
parent 2071bed657
6 changed files with 210 additions and 65 deletions
--- a/utils/qemu/Makefile
+++ b/utils/qemu/Makefile
@ -1,6 +1,6 @@
 #
 # Copyright (C) 2016 OpenWrt.org
-# Copyright (C) 2016-2018 Yousong Zhou <yszhou4tech@gmail.com>
+# Copyright (C) 2016-2019 Yousong Zhou <yszhou4tech@gmail.com>
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@ -9,20 +9,22 @@
 include $(TOPDIR)/rules.mk

 PKG_NAME:=qemu
-PKG_VERSION:=3.1.0
+PKG_VERSION:=4.1.0
 PKG_RELEASE:=2
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
-PKG_HASH:=6a0508df079a0a33c2487ca936a56c12122f105b8a96a44374704bef6c69abfc
+PKG_HASH:=656e60218689bdeec69903087fd7582d5d3e72238d02f4481d8dc6d79fd909c6
 PKG_SOURCE_URL:=http://download.qemu.org/
 PKG_LICENSE:=GPL-2.0
 PKG_LICENSE_FILES:=LICENSE tcg/LICENSE
 PKG_MAINTAINER:=Yousong Zhou <yszhou4tech@gmail.com>
+PKG_CPE_ID:=cpe:/a:qemu:qemu

 PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
 PKG_USE_MIPS16:=0

 include $(INCLUDE_DIR)/uclibc++.mk
+include $(INCLUDE_DIR)/nls.mk
 include $(INCLUDE_DIR)/package.mk


@ -52,10 +54,6 @@ define Package/qemu-ga
  DEPENDS:= +glib2 +virtio-console-helper $(CXX_DEPENDS) $(QEMU_DEPS_IN_GUEST)
 endef

-define Package/qemu-ga/description
-  This package contains the QEMU Guest Agent daemon
-endef
-
 define Package/qemu-ga/install
 	$(INSTALL_DIR) $(1)/usr/bin
 	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/qemu-ga $(1)/usr/bin
@ -65,20 +63,8 @@ define Package/qemu-ga/install
 	$(INSTALL_BIN) ./files/10-qemu-ga.hotplug $(1)/etc/hotplug.d/virtio-ports/10-qemu-ga
 endef

+PKG_CONFIG_DEPENDS += CONFIG_PACKAGE_qemu-ga

-define Package/qemu-blobs
-  SECTION:=utils
-  CATEGORY:=Utilities
-  SUBMENU:=Virtualization
-  TITLE:=QEMU blobs of BIOS, VGA BIOS and keymaps
-  URL:=http://www.qemu.org
-  DEPENDS:=$(QEMU_DEPS_IN_HOST)
-endef
-
-define Package/qemu-blobs/install
-	$(INSTALL_DIR) $(1)/usr/share/qemu
-	$(CP) $(PKG_INSTALL_DIR)/usr/share/qemu/* $(1)/usr/share/qemu
-endef

 define Package/qemu-bridge-helper
  SECTION:=utils
@ -96,13 +82,14 @@ define Package/qemu-bridge-helper/install
 	$(INSTALL_DATA) ./files/bridge.conf $(1)/etc/qemu
 endef

+
 define Package/qemu-img
 SECTION:=utils
 CATEGORY:=Utilities
 SUBMENU:=Virtualization
 TITLE:=QEMU Image utility
 URL:=http://www.qemu.org
- DEPENDS:=+glib2 $(CXX_DEPENDS) $(QEMU_DEPS_IN_HOST)
+ DEPENDS:=+glib2 $(QEMU_DEPS_IN_HOST)
 endef

 define Package/qemu-img/install
@ -110,13 +97,14 @@ define Package/qemu-img/install
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/qemu-img $(1)/usr/bin/qemu-img
 endef

+
 define Package/qemu-nbd
 SECTION:=utils
 CATEGORY:=Utilities
 SUBMENU:=Virtualization
 TITLE:=QEMU Network Block Device Utility
 URL:=http://www.qemu.org
- DEPENDS:=+glib2 $(CXX_DEPENDS) $(QEMU_DEPS_IN_HOST) +kmod-nbd
+ DEPENDS:=+glib2 $(QEMU_DEPS_IN_HOST) +kmod-nbd
 endef

 define Package/qemu-nbd/install
@ -124,7 +112,41 @@ define Package/qemu-nbd/install
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/qemu-nbd $(1)/usr/sbin/qemu-nbd
 endef

-PKG_CONFIG_DEPENDS += CONFIG_PACKAGE_qemu-ga
+
+define qemu-firmware
+  QEMU_PACKAGES += qemu-firmware-$(1)
+
+  define Package/qemu-firmware-$(1)
+    SECTION:=utils
+    CATEGORY:=Utilities
+    SUBMENU:=Virtualization
+    TITLE:=$(qemu-firmware-$(1)-title)
+    URL:=http://www.qemu.org
+    DEPENDS:=$(QEMU_DEPS_IN_HOST)
+  endef
+
+  define Package/qemu-firmware-$(1)/install
+	$$(INSTALL_DIR) $$(1)/usr/share/qemu
+	$$(CP) $(foreach f,$(qemu-firmware-$(1)-files),$$(PKG_INSTALL_DIR)/usr/share/qemu/$(f)) $$(1)/usr/share/qemu
+  endef
+endef
+
+qemu-firmware-seabios-title:=QEMU build of SeaBIOS for x86 guest
+qemu-firmware-seabios-files:=bios.bin bios-256k.bin
+$(eval $(call qemu-firmware,seabios))
+
+qemu-firmware-seavgabios-title:=QEMU build of SeaVGABIOS
+qemu-firmware-seavgabios-files:=vgabios-*.bin
+$(eval $(call qemu-firmware,seavgabios))
+
+qemu-firmware-pxe-title:=QEMU build of iPXE PXE roms
+qemu-firmware-pxe-files:=pxe-*.rom
+$(eval $(call qemu-firmware,pxe))
+
+qemu-firmware-efi-title:=QEMU build of iPXE EFI roms
+qemu-firmware-efi-files:=efi-*.rom
+$(eval $(call qemu-firmware,efi))
+

 # Naming rules used in qemu Makefile.target
 define qemu-prog_
@ -144,6 +166,7 @@ qemu-prog = $(strip $(call qemu-prog_,$(1)))
 #
 define qemu-target
  PKG_CONFIG_DEPENDS += CONFIG_PACKAGE_qemu-$(1)
+  QEMU_PACKAGES += qemu-$(1)

  define Package/qemu-$(1)
    SECTION:=utils
@ -151,8 +174,8 @@ define qemu-target
    SUBMENU:=Virtualization
    TITLE:=QEMU target $(1)
    URL:=http://www.qemu.org
-    DEPENDS:= +glib2 +libpthread +zlib $(CXX_DEPENDS) $(QEMU_DEPS_IN_HOST) \
-	$(if $(filter %-softmmu,$(1)),+libncurses +libfdt +pixman +qemu-blobs)
+    DEPENDS:= +glib2 +libpthread +zlib $(CXX_DEPENDS) $(QEMU_DEPS_IN_HOST) $(qemu-target-$(1)-deps) \
+	$(if $(filter %-softmmu,$(1)),+libncurses +libfdt +pixman +qemu-firmware-efi $(ICONV_DEPENDS))
  endef

  define Package/qemu-$(1)/description
@ -162,18 +185,34 @@ define qemu-target
  define Package/qemu-$(1)/install
 	$(INSTALL_DIR) $$(1)/usr/bin
 	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/$(call qemu-prog,$(1)) $$(1)/usr/bin
+	$(foreach f,$(qemu-target-$(1)-extra-files),
+		$(INSTALL_DIR) $$(1)/$(dir $(f))
+		$(CP) $(PKG_INSTALL_DIR)/$(f) $$(1)/$(f)
+	)
  endef

 endef

-QEMU_TARGET_LIST :=	\
+qemu-target-list :=	\
 	x86_64-softmmu	\
 	arm-softmmu	\

-$(foreach target,$(QEMU_TARGET_LIST), \
+qemu-target-x86_64-softmmu-deps:= \
+	+qemu-firmware-pxe \
+	+qemu-firmware-seabios \
+	+qemu-firmware-seavgabios
+qemu-target-x86_64-softmmu-extra-files:= \
+	usr/share/qemu/kvmvapic.bin \
+	usr/share/qemu/linuxboot.bin \
+	usr/share/qemu/linuxboot_dma.bin \
+	usr/share/qemu/multiboot.bin \
+	usr/share/qemu/pvh.bin
+
+$(foreach target,$(qemu-target-list), \
  $(eval $(call qemu-target,$(target))) \
 )

+
 # QEMU configure script does not recognize these options
 CONFIGURE_ARGS:=$(filter-out	\
 	--target=%		\
@ -192,81 +231,142 @@ CONFIGURE_ARGS +=			\
 	--host-cc="$(HOSTCC)"		\
 	--disable-fortify-source	\
 	--disable-stack-protector	\
+	--extra-cflags="$(EXTRA_CFLAGS)"	\
+	--extra-cxxflags="$(EXTRA_CXXFLAGS)"	\
+	--extra-ldflags="$(EXTRA_LDFLAGS)"	\

-# Make a list from QEMU source code for reference
+# VHost features
+CONFIGURE_ARGS +=			\
+	--enable-vhost-crypto		\
+	--enable-vhost-kernel		\
+	--enable-vhost-net		\
+	--enable-vhost-scsi		\
+	--enable-vhost-user		\
+	--enable-vhost-vsock		\
+
+# Image formats support
+CONFIGURE_ARGS +=			\
+	--disable-bochs			\
+	--disable-cloop			\
+	--disable-dmg			\
+	--disable-qcow1			\
+	--disable-vdi			\
+	--disable-vvfat			\
+	--disable-qed			\
+	--disable-parallels		\
+
+# system/user-mode emulation
+CONFIGURE_ARGS +=			\
+	--disable-user			\
+	--disable-bsd-user		\
+	--disable-linux-user		\
+	--enable-system			\
+
+# accel
+CONFIGURE_ARGS +=			\
+	--disable-hax			\
+	--disable-hvf			\
+	--disable-whpx			\
+	--disable-xen			\
+	--enable-kvm			\
+	--enable-tcg			\
+
+# UI
+CONFIGURE_ARGS +=			\
+	--disable-cocoa			\
+	--disable-gtk			\
+	--disable-sdl			\
+	--disable-sdl-image		\
+	--disable-spice			\
+	--disable-virglrenderer		\
+	--disable-vnc			\
+	--disable-vnc-jpeg		\
+	--disable-vnc-png		\
+	--disable-vnc-sasl		\
+	--disable-vte			\
+	--enable-curses			\
+	--enable-iconv			\
+
+# Features for performance & no external dependency
+CONFIGURE_ARGS +=			\
+	--enable-coroutine-pool		\
+	--enable-crypto-afalg		\
+	--enable-live-block-migration	\
+	--enable-membarrier		\
+	--enable-replication		\
+
+# Review configure options not explicitly specified here
 #
-#	grep -E '^\s*--disable-[^)]+\)' configure | cut -f1 -d')' | sort -u
+#	openwrt_makefile=openwrt/packages/utils/qemu/Makefile
+#	qemu_configure=qemu/configure
+#	for arg in $(grep -E '^\s*--disable-[^)]+\)' "$qemu_configure" | cut -f1 -d')'); do
+#	  grep -qE "(--enable|--disable)${arg#--disable}" "$openwrt_makefile" || echo "$arg"
+#	done
 #
 CONFIGURE_ARGS +=			\
 	--audio-drv-list=''		\
 	--disable-attr			\
+	--disable-auth-pam		\
 	--disable-bluez			\
 	--disable-brlapi		\
-	--disable-bsd-user		\
 	--disable-bzip2			\
 	--disable-cap-ng		\
-	--disable-cocoa			\
+	--disable-capstone		\
 	--disable-curl			\
 	--disable-debug-info		\
+	--disable-debug-mutex		\
 	--disable-debug-tcg		\
 	--disable-docs			\
 	--disable-gcrypt		\
+	--disable-git-update		\
 	--disable-glusterfs		\
 	--disable-gnutls		\
-	--disable-gtk			\
 	--disable-guest-agent-msi	\
 	--disable-jemalloc		\
 	--disable-libiscsi		\
 	--disable-libnfs		\
 	--disable-libpmem		\
-	--disable-libssh2		\
+	--disable-libssh		\
 	--disable-libudev		\
 	--disable-libusb		\
 	--disable-libxml2		\
 	--disable-linux-aio		\
+	--disable-lzfse			\
 	--disable-lzo			\
 	--disable-modules		\
+	--disable-mpath			\
 	--disable-netmap		\
 	--disable-nettle		\
 	--disable-numa			\
 	--disable-opengl		\
+	--disable-pvrdma		\
 	--disable-qom-cast-debug	\
 	--disable-rbd			\
 	--disable-rdma			\
-	--disable-sdl			\
+	--disable-sanitizers		\
 	--disable-seccomp		\
+	--disable-sheepdog		\
 	--disable-smartcard		\
 	--disable-snappy		\
 	--disable-sparse		\
-	--disable-spice			\
 	--disable-strip			\
 	--disable-tcg-interpreter	\
 	--disable-tcmalloc		\
 	--disable-tools			\
 	--disable-tpm			\
 	--disable-usb-redir		\
-	--disable-uuid			\
 	--disable-vde			\
-	--disable-vhdx			\
-	--disable-virglrenderer		\
 	--disable-virtfs		\
-	--disable-vnc			\
-	--disable-vnc-jpeg		\
-	--disable-vnc-png		\
-	--disable-vnc-sasl		\
-	--disable-vte			\
+	--disable-vxhs			\
 	--disable-werror		\
-	--disable-xen			\
 	--disable-xen-pci-passthrough	\
-	--disable-xen-pv-domain-build	\
 	--disable-xfsctl		\
-	--disable-zlib-test		\

-CONFIGURE_ARGS += --target-list='$(foreach target,$(QEMU_TARGET_LIST),$(if $(CONFIG_PACKAGE_qemu-$(target)),$(target)))'
+CONFIGURE_ARGS += --target-list='$(foreach target,$(qemu-target-list),$(if $(CONFIG_PACKAGE_qemu-$(target)),$(target)))'
 CONFIGURE_ARGS += $(if $(CONFIG_PACKAGE_qemu-ga),--enable-guest-agent)

 TARGET_LDFLAGS += -Wl,--as-needed
-MAKE_VARS += V=s
+MAKE_VARS += V=1
 # ARCH is special in qemu's build system, e.g. ARCH mips64 will be translated
 # there to mips and stored in config-host.mak
 MAKE_FLAGS:=$(filter-out	\
@ -278,7 +378,7 @@ QEMU_MAKE_TARGETS := \
 	$(if $(CONFIG_PACKAGE_qemu-bridge-helper),qemu-bridge-helper) \
 	$(if $(CONFIG_PACKAGE_qemu-img),qemu-img) \
 	$(if $(CONFIG_PACKAGE_qemu-nbd),qemu-nbd) \
-	$(foreach target,$(QEMU_TARGET_LIST),$(if $(CONFIG_PACKAGE_qemu-$(target)),subdir-$(target))) \
+	$(foreach target,$(qemu-target-list),$(if $(CONFIG_PACKAGE_qemu-$(target)),$(target)/all)) \

 define Build/Compile
 	$(if $(strip $(QEMU_MAKE_TARGETS)),$(call Build/Compile/Default,$(QEMU_MAKE_TARGETS)))
@ -289,7 +389,6 @@ $(eval $(call BuildPackage,qemu-ga))
 $(eval $(call BuildPackage,qemu-bridge-helper))
 $(eval $(call BuildPackage,qemu-img))
 $(eval $(call BuildPackage,qemu-nbd))
-$(eval $(call BuildPackage,qemu-blobs))
-$(foreach target,$(QEMU_TARGET_LIST), \
-  $(eval $(call BuildPackage,qemu-$(target))) \
+$(foreach p,$(QEMU_PACKAGES), \
+  $(eval $(call BuildPackage,$(p))) \
 )
--- a/utils/qemu/patches/0001-configure-allow-disable-fortify_source.patch
+++ b/utils/qemu/patches/0001-configure-allow-disable-fortify_source.patch
@ -1,4 +1,4 @@
-From 82d1bb429533dcab4278ed21afc19ee303d7d3f5 Mon Sep 17 00:00:00 2001
+From cbb0971d0d1bc32413095810e24f17eb7169810a Mon Sep 17 00:00:00 2001
 From: Yousong Zhou <yszhou4tech@gmail.com>
 Date: Sat, 24 Feb 2018 13:43:19 +0800
 Subject: [PATCH 1/4] configure: allow disable fortify_source
@ -10,10 +10,10 @@ OpenWrt base build system decide flavor of fortify_source to use
 1 file changed, 2 insertions(+)

 diff --git a/configure b/configure
-index 0a3c6a72c3..d274df816c 100755
+index 1c563a7027..f4d949b35b 100755
 --- a/configure
 +++ b/configure
-@@ -1491,6 +1491,8 @@ for opt do
+@@ -1518,6 +1518,8 @@ for opt do
   ;;
   --disable-libpmem) libpmem=no
   ;;
--- a/utils/qemu/patches/0002-configure-allow-enabling-disabling-libudev-from-comm.patch
+++ b/utils/qemu/patches/0002-configure-allow-enabling-disabling-libudev-from-comm.patch
@ -1,4 +1,4 @@
-From 4d7955f069922c482886e03e5cd352281dbce146 Mon Sep 17 00:00:00 2001
+From 39b07d1742475f2c60ae2c80f3f2853bb556e0b1 Mon Sep 17 00:00:00 2001
 From: Yousong Zhou <yszhou4tech@gmail.com>
 Date: Tue, 2 Apr 2019 06:31:31 +0000
 Subject: [PATCH 2/4] configure: allow enabling/disabling libudev from command
@ -9,10 +9,10 @@ Subject: [PATCH 2/4] configure: allow enabling/disabling libudev from command
 1 file changed, 4 insertions(+)

 diff --git a/configure b/configure
-index d274df816c..a138faeb72 100755
+index f4d949b35b..939f54178b 100755
 --- a/configure
 +++ b/configure
-@@ -1491,6 +1491,10 @@ for opt do
+@@ -1518,6 +1518,10 @@ for opt do
   ;;
   --disable-libpmem) libpmem=no
   ;;
--- a/utils/qemu/patches/0003-disas-fix-compilation-failure-when-isnan-is-a-macro.patch
+++ b/utils/qemu/patches/0003-disas-fix-compilation-failure-when-isnan-is-a-macro.patch
@ -1,4 +1,4 @@
-From c480c25cf9265fe8e90c2c26d65c8a2fa174b0ea Mon Sep 17 00:00:00 2001
+From fb90eacb808c3b1719d6a5f2deefe88c82589bfb Mon Sep 17 00:00:00 2001
 From: Yousong Zhou <yszhou4tech@gmail.com>
 Date: Sat, 24 Feb 2018 13:45:25 +0800
 Subject: [PATCH 3/4] disas: fix compilation failure when isnan is a macro
--- a/utils/qemu/patches/0004-pc-bios-fix-compilation-when-AS-is-actually-gcc-driv.patch
+++ b/utils/qemu/patches/0004-pc-bios-fix-compilation-when-AS-is-actually-gcc-driv.patch
@ -1,4 +1,4 @@
-From e030d1c14119e880a52788dd04325d489cf455ae Mon Sep 17 00:00:00 2001
+From 8cff6a5f07f66103809e6bf4a26c512d70ab2841 Mon Sep 17 00:00:00 2001
 From: Yousong Zhou <yszhou4tech@gmail.com>
 Date: Sat, 24 Feb 2018 13:46:31 +0800
 Subject: [PATCH 4/4] pc-bios: fix compilation when $(AS) is actually gcc
@ -9,7 +9,7 @@ Subject: [PATCH 4/4] pc-bios: fix compilation when $(AS) is actually gcc
 1 file changed, 2 insertions(+), 2 deletions(-)

 diff --git a/pc-bios/optionrom/Makefile b/pc-bios/optionrom/Makefile
-index a9a9e5e7eb..f88b3ee446 100644
+index e33a24da0d..ce734e8202 100644
 --- a/pc-bios/optionrom/Makefile
 +++ b/pc-bios/optionrom/Makefile
@@ -34,7 +34,7 @@ endif
@ -20,13 +20,13 @@ index a9a9e5e7eb..f88b3ee446 100644
 +ASFLAGS += $(Wa)-32
 QEMU_CFLAGS += $(call cc-c-option, $(QEMU_CFLAGS), $(Wa)-32)
 
- build-all: multiboot.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin
-@@ -44,7 +44,7 @@ build-all: multiboot.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin
+ build-all: multiboot.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin pvh.bin
+@@ -44,7 +44,7 @@ build-all: multiboot.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin pvh.bin
 
 
 %.o: %.S
 -	$(call quiet-command,$(CPP) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) -c -o - $< | $(AS) $(ASFLAGS) -o $@,"AS","$(TARGET_DIR)$@")
 +	$(call quiet-command,$(CPP) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) -c -o - $< | $(AS) $(ASFLAGS) -o $@ -x assembler -,"AS","$(TARGET_DIR)$@")
 
- %.img: %.o
- 	$(call quiet-command,$(LD) $(LDFLAGS_NOPIE) -m $(LD_I386_EMULATION) -T $(SRC_PATH)/pc-bios/optionrom/flat.lds -s -o $@ $<,"BUILD","$(TARGET_DIR)$@")
+ pvh.img: pvh.o pvh_main.o
+ 	$(call quiet-command,$(LD) $(LDFLAGS_NOPIE) -m $(LD_I386_EMULATION) -T $(SRC_PATH)/pc-bios/optionrom/flat.lds -s -o $@ $^,"BUILD","$(TARGET_DIR)$@")
--- a/utils/qemu/patches/0005-slirp-ipreass-fix-use-after-free.patch
+++ b/utils/qemu/patches/0005-slirp-ipreass-fix-use-after-free.patch
@ -0,0 +1,46 @@
+From c59279437eda91841b9d26079c70b8a540d41204 Mon Sep 17 00:00:00 2001
+From: Samuel Thibault <samuel.thibault@ens-lyon.org>
+Date: Mon, 26 Aug 2019 00:55:03 +0200
+Subject: [PATCH] ip_reass: Fix use after free
+
+Using ip_deq after m_free might read pointers from an allocation reuse.
+
+This would be difficult to exploit, but that is still related with
+CVE-2019-14378 which generates fragmented IP packets that would trigger this
+issue and at least produce a DoS.
+
+Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
+---
+Taken from https://gitlab.freedesktop.org/slirp/libslirp/commit/c5927943
+
+ slirp/src/ip_input.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/slirp/src/ip_input.c b/slirp/src/ip_input.c
+index 7364ce0..aa514ae 100644
+--- a/slirp/src/ip_input.c
+++ b/slirp/src/ip_input.c
+@@ -292,6 +292,7 @@ static struct ip *ip_reass(Slirp *slirp, struct ip *ip, struct ipq *fp)
+      */
+     while (q != (struct ipasfrag *)&fp->frag_link &&
+            ip->ip_off + ip->ip_len > q->ipf_off) {
+        struct ipasfrag *prev;
+         i = (ip->ip_off + ip->ip_len) - q->ipf_off;
+         if (i < q->ipf_len) {
+             q->ipf_len -= i;
+@@ -299,9 +300,10 @@ static struct ip *ip_reass(Slirp *slirp, struct ip *ip, struct ipq *fp)
+             m_adj(dtom(slirp, q), i);
+             break;
+         }
+        prev = q;
+         q = q->ipf_next;
+-        m_free(dtom(slirp, q->ipf_prev));
+-        ip_deq(q->ipf_prev);
+        ip_deq(prev);
+        m_free(dtom(slirp, prev));
+     }
+ 
+ insert:
+-- 
+2.22.0
+