Error building kernel in 9.0-BETA3: use of uninitialized
variable in ipfw
Brett Glass
brett at lariat.net
Sat Oct 15 18:38:38 UTC 2011
Just tried to build a new kernel in 9.0-BETA3 with the IPFIREWALL
option, and found that the build halts with a compiler error. The
error occurs at netinet/ipfw/ip_fw_pfil.c, line 185, where the
compiler complains that the variable "len" is used before
intialization. Problem occurs on both i386 and amd64 platforms.
Sample kernel config follows:
cpu HAMMER
ident BETA
#makeoptions DEBUG=-g # Build kernel with gdb(1)
debug symbols
options SCHED_ULE # ULE scheduler
options PREEMPTION # Enable kernel thread preemption
options INET # InterNETworking
#options INET6 # IPv6 communications protocols
#options SCTP # Stream Control Transmission Protocol
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
#options UFS_ACL # Support for access control lists
options UFS_DIRHASH # Improve performance on
big directories
#options UFS_GJOURNAL # Enable gjournal-based UFS journaling
#options MD_ROOT # MD is a potential root device
#options NFSCL # New Network Filesystem Client
#options NFSD # New Network Filesystem Server
#options NFSLOCKD # Network Lock Manager
#options NFS_ROOT # NFS usable as /, requires NFSCL
#options MSDOSFS # MSDOS Filesystem
#options CD9660 # ISO 9660 Filesystem
options PROCFS # Process filesystem
(requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_PART_GPT # GUID Partition Tables.
options GEOM_LABEL # Provides labelization
#options COMPAT_FREEBSD32 # Compatible with i386 binaries
#options COMPAT_FREEBSD4 # Compatible with FreeBSD4
#options COMPAT_FREEBSD5 # Compatible with FreeBSD5
#options COMPAT_FREEBSD6 # Compatible with FreeBSD6
#options COMPAT_FREEBSD7 # Compatible with FreeBSD7
options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
#options KTRACE # ktrace(1) support
#options STACK # stack(9) support
options SYSVSHM # SYSV-style shared memory
options SYSVMSG # SYSV-style message queues
options SYSVSEM # SYSV-style semaphores
options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B
real-time extensions
options PRINTF_BUFR_SIZE=128 # Prevent printf output
being interspersed.
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
#options HWPMC_HOOKS # Necessary kernel hooks for hwpmc(4)
#options AUDIT # Security event auditing
#options MAC # TrustedBSD MAC Framework
##options KDTRACE_FRAME # Ensure frames are compiled in
##options KDTRACE_HOOKS # Kernel DTrace hooks
#options INCLUDE_CONFIG_FILE # Include this file in kernel
# Debugging for use in -current
#options KDB # Enable kernel debugger support.
#options DDB # Support DDB.
#options GDB # Support remote GDB.
#options DEADLKRES # Enable the deadlock resolver
#options INVARIANTS # Enable calls of extra sanity checking
#options INVARIANT_SUPPORT # Extra sanity checks of
internal structures, required by IN
VARIANTS
#options WITNESS # Enable checks to detect
deadlocks and cycles
#options WITNESS_SKIPSPIN # Don't run witness on
spinlocks for speed
#options MALLOC_DEBUG_MAXZONES=8 # Separate malloc(9) zones
# Make an SMP-capable kernel by default
options SMP # Symmetric MultiProcessor Kernel
# CPU frequency control
device cpufreq
# Bus support.
device acpi
device pci
# Floppy drives
#device fdc
# ATA controllers
device ahci # AHCI-compatible SATA controllers
device ata # Legacy ATA/SATA controllers
options ATA_CAM # Handle legacy controllers with CAM
options ATA_STATIC_ID # Static device numbering
#device mvs # Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA
#device siis # SiliconImage SiI3124/SiI3132/SiI3531 SATA
# SCSI Controllers
#device ahc # AHA2940 and onboard AIC7xxx devices
#options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~128k to driver.
#device ahd # AHA39320/29320 and onboard AIC79xx devices
#options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~215k to driver.
#device amd # AMD 53C974 (Tekram DC-390(T))
#device hptiop # Highpoint RocketRaid 3xxx series
#device isp # Qlogic family
##device ispfw # Firmware for QLogic HBAs-
normally a module
#device mpt # LSI-Logic MPT-Fusion
#device mps # LSI-Logic MPT-Fusion 2
##device ncr # NCR/Symbios Logic
#device sym # NCR/Symbios Logic (newer chipsets
+ those of `ncr')
#device trm # Tekram DC395U/UW/F DC315U adapters
#device adv # Advansys SCSI adapters
#device adw # Advansys wide SCSI adapters
#device aic # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
#device bt # Buslogic/Mylex MultiMaster SCSI adapters
# ATA/SCSI peripherals
device scbus # SCSI bus (required for ATA/SCSI)
#device ch # SCSI media changers
device da # Direct Access (disks)
#device sa # Sequential Access (tape etc)
#device cd # CD
device pass # Passthrough device (direct ATA/SCSI access)
#device ses # SCSI Environmental Services (and SAF-TE)
# RAID controllers interfaced to the SCSI subsystem
#device amr # AMI MegaRAID
#device arcmsr # Areca SATA II RAID
##XXX it is not 64-bit clean, -scottl
##device asr # DPT SmartRAID V, VI and
Adaptec SCSI RAID
#device ciss # Compaq Smart RAID 5*
#device dpt # DPT Smartcache III, IV - See
NOTES for options
#device hptmv # Highpoint RocketRAID 182x
#device hptrr # Highpoint RocketRAID 17xx, 22xx, 23xx, 25xx
#device iir # Intel Integrated RAID
#device ips # IBM (Adaptec) ServeRAID
#device mly # Mylex AcceleRAID/eXtremeRAID
#device twa # 3ware 9000 series PATA/SATA RAID
# RAID controllers
#device aac # Adaptec FSA RAID
#device aacp # SCSI passthrough for aac (requires CAM)
#device ida # Compaq Smart RAID
#device mfi # LSI MegaRAID SAS
#device mlx # Mylex DAC960 family
##XXX pointer/int warnings
##device pst # Promise Supertrak SX6000
#device twe # 3ware ATA RAID
# atkbdc0 controls both the keyboard and the PS/2 mouse
#device atkbdc # AT keyboard controller
#device atkbd # AT keyboard
#device psm # PS/2 mouse
#device kbdmux # keyboard multiplexer
device vga # VGA video card driver
#device splash # Splash screen and screen saver support
# syscons is the default console driver, resembling an SCO console
device sc
#options SC_PIXEL_MODE # add support for the raster text mode
device agp # support several AGP chipsets
# PCCARD (PCMCIA) support
# PCMCIA and cardbus bridge support
#device cbb # cardbus (yenta) bridge
#device pccard # PC Card (16-bit) bus
#device cardbus # CardBus (32-bit) bus
# Serial (COM) ports
#device uart # Generic UART driver
# Parallel port
#device ppc
#device ppbus # Parallel port bus (required)
#device lpt # Printer
#device plip # TCP/IP over parallel
#device ppi # Parallel port interface device
##device vpo # Requires scbus and da
#device puc # Multi I/O cards and multi-channel UARTs
# PCI Ethernet NICs.
#device bxe # Broadcom
BCM57710/BCM57711/BCM57711E 10Gb Ethernet
#device de # DEC/Intel DC21x4x (``Tulip'')
#device em # Intel PRO/1000 Gigabit Ethernet Family
#device igb # Intel PRO/1000 PCIE Server Gigabit Family
#device ixgbe # Intel PRO/10GbE PCIE Ethernet Family
#device le # AMD Am7900 LANCE and Am79C9xx PCnet
#device ti # Alteon Networks Tigon I/II gigabit Ethernet
#device txp # 3Com 3cR990 (``Typhoon'')
#device vx # 3Com 3c590, 3c595 (``Vortex'')
# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device miibus # MII bus support
#device ae # Attansic/Atheros L2 FastEthernet
#device age # Attansic/Atheros L1 Gigabit Ethernet
#device alc # Atheros AR8131/AR8132 Ethernet
#device ale # Atheros AR8121/AR8113/AR8114 Ethernet
#device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet
#device bfe # Broadcom BCM440x 10/100 Ethernet
#device bge # Broadcom BCM570xx Gigabit Ethernet
#device dc # DEC/Intel 21143 and various workalikes
#device et # Agere ET1310 10/100/Gigabit Ethernet
#device fxp # Intel EtherExpress PRO/100B (82557, 82558)
#device jme # JMicron JMC250 Gigabit/JMC260 Fast Ethernet
#device lge # Level 1 LXT1001 gigabit Ethernet
#device msk # Marvell/SysKonnect Yukon II Gigabit Ethernet
#device nfe # nVidia nForce MCP on-board Ethernet
#device nge # NatSemi DP83820 gigabit Ethernet
##device nve # nVidia nForce MCP
on-board Ethernet Networking
#device pcn # AMD Am79C97x PCI 10/100
(precedence over 'le')
device re # RealTek 8139C+/8169/8169S/8110S
#device rl # RealTek 8129/8139
#device sf # Adaptec AIC-6915 (``Starfire'')
#device sge # Silicon Integrated Systems SiS190/191
#device sis # Silicon Integrated Systems SiS 900/SiS 7016
#device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
#device ste # Sundance ST201 (D-Link DFE-550TX)
#device stge # Sundance/Tamarack TC9021 gigabit Ethernet
#device tl # Texas Instruments ThunderLAN
#device tx # SMC EtherPower II (83c170 ``EPIC'')
#device vge # VIA VT612x gigabit Ethernet
#device vr # VIA Rhine, Rhine II
#device wb # Winbond W89C840F
#device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# ISA Ethernet NICs. pccard NICs included.
#device cs # Crystal Semiconductor CS89x0 NIC
# 'device ed' requires 'device miibus'
#device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards
#device ex # Intel EtherExpress Pro/10 and Pro/10+
#device ep # Etherlink III based cards
#device fe # Fujitsu MB8696x based cards
#device sn # SMC's 9000 series of Ethernet chips
#device xe # Xircom pccard Ethernet
# Wireless NIC cards
#device wlan # 802.11 support
#options IEEE80211_DEBUG # enable debug msgs
#options IEEE80211_AMPDU_AGE # age frames in AMPDU reorder q's
#options IEEE80211_SUPPORT_MESH # enable 802.11s draft support
#device wlan_wep # 802.11 WEP support
#device wlan_ccmp # 802.11 CCMP support
#device wlan_tkip # 802.11 TKIP support
#device wlan_amrr # AMRR transmit rate control algorithm
#device an # Aironet 4500/4800 802.11 wireless NICs.
#device ath # Atheros NIC's
#device ath_pci # Atheros pci/cardbus glue
#device ath_hal # pci/cardbus chip support
#options AH_SUPPORT_AR5416 # enable AR5416 tx/rx descriptors
#device ath_rate_sample # SampleRate tx rate control for ath
##device bwi # Broadcom BCM430x/BCM431x
wireless NICs.
##device bwn # Broadcom BCM43xx wireless NICs.
#device ipw # Intel 2100 wireless NICs.
#device iwi # Intel 2200BG/2225BG/2915ABG wireless NICs.
#device iwn # Intel 4965/1000/5000/6000 wireless NICs.
#device malo # Marvell Libertas wireless NICs.
#device mwl # Marvell 88W8363 802.11n wireless NICs.
#device ral # Ralink Technology RT2500 wireless NICs.
#device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
#device wpi # Intel 3945ABG wireless NICs.
# Pseudo devices.
device loop # Network loopback
device random # Entropy device
device ether # Ethernet support
device vlan # 802.1Q VLAN support
device tun # Packet tunnel.
device pty # BSD-style compatibility pseudo ttys
#device md # Memory "disks"
#device gif # IPv6 and IPv4 tunneling
#device faith # IPv6-to-IPv4 relaying (translation)
#device firmware # firmware assist module
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device bpf # Berkeley packet filter
# USB support
#options USB_DEBUG # enable debug msgs
device uhci # UHCI PCI->USB interface
#device ohci # OHCI PCI->USB interface
#device ehci # EHCI PCI->USB interface (USB 2.0)
#device xhci # XHCI PCI->USB interface (USB 3.0)
device usb # USB Bus (required)
##device udbp # USB Double Bulk Pipe
devices (needs netgraph)
#device uhid # "Human Interface Devices"
device ukbd # Keyboard
#device ulpt # Printer
#device umass # Disks/Mass storage - Requires scbus and da
#device ums # Mouse
#device urio # Diamond Rio 500 MP3 player
# USB Serial devices
#device u3g # USB-based 3G modems (Option, Huawei, Sierra)
#device uark # Technologies ARK3116 based serial adapters
#device ubsa # Belkin F5U103 and compatible serial adapters
#device uftdi # For FTDI usb serial adapters
#device uipaq # Some WinCE based devices
#device uplcom # Prolific PL-2303 serial adapters
#device uslcom # SI Labs CP2101/CP2102 serial adapters
#device uvisor # Visor and Palm devices
#device uvscom # USB serial support for DDI pocket's PHS
# USB Ethernet, requires miibus
#device aue # ADMtek USB Ethernet
#device axe # ASIX Electronics USB Ethernet
#device cdce # Generic USB over Ethernet
#device cue # CATC USB Ethernet
#device kue # Kawasaki LSI USB Ethernet
#device rue # RealTek RTL8150 USB Ethernet
#device udav # Davicom DM9601E USB
# USB Wireless
#device rum # Ralink Technology RT2501USB wireless NICs
#device run # Ralink Technology RT2700/RT2800/RT3000 NICs.
#device uath # Atheros AR5523 wireless NICs
#device upgt # Conexant/Intersil PrismGT wireless NICs.
#device ural # Ralink Technology RT2500USB wireless NICs
#device urtw # Realtek RTL8187B/L wireless NICs
#device zyd # ZyDAS zd1211/zd1211b wireless NICs
# FireWire support
#device firewire # FireWire bus code
#device sbp # SCSI over FireWire (Requires scbus and da)
#device fwe # Ethernet over FireWire (non-standard!)
#device fwip # IP over FireWire (RFC 2734,3146)
#device dcons # Dumb console driver
#device dcons_crom # Configuration ROM for dcons
# Sound support
#device sound # Generic sound driver (required)
#device snd_es137x # Ensoniq AudioPCI ES137x
#device snd_hda # Intel High Definition Audio
#device snd_ich # Intel, NVidia and other ICH AC'97 Audio
#device snd_uaudio # USB Audio
#device snd_via8233 # VIA VT8233x Audio
options IPFIREWALL # IPFW firewall
options IPFIREWALL_DEFAULT_TO_ACCEPT # For safety
options IPFIREWALL_FORWARD # For walled gardens, transparent
# proxies and policy routing
options IPFIREWALL_NAT # Firewall kernel NAT
options IPFIREWALL_VERBOSE #enable logging to syslogd(8)
options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
options LIBALIAS # Necessary for kernel NAT
options DUMMYNET # For pacing in IPFW
options HZ=1000 # For DUMMYNET
options NETGRAPH # For mpd
options NETGRAPH_MPPC_ENCRYPTION
options NETGRAPH_SOCKET
options NETGRAPH_TEE
options NETGRAPH_PPTPGRE
options NETGRAPH_KSOCKET
options NETGRAPH_IFACE
options NETGRAPH_PPP
options NETGRAPH_TCPMSS
options NETGRAPH_VJC
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