freebsd-src/sys
Mark Johnston d5eae57088 sysctl: Make sysctl_ctx_free() a bit safer
Clear the list before returning so that sysctl_ctx_free() can be called
more than once on the same list without side effects.  This simplifies
error handling in drivers; previously, drivers would have to be careful
to call sysctl_ctx_free() at most once to avoid a use-after-free.

While here, use TAILQ_FOREACH_SAFE in the loop which unregisters OIDs.

Reviewed by:	thj, emaste
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D45041
2024-05-02 15:42:28 -04:00
..
amd64
arm arm: Remove duplicate definitions in armreg.h 2024-04-30 17:33:43 -04:00
arm64 arm64/vmm: Handle VM_EXITCODE_SUSPENDED 2024-04-29 10:19:27 -04:00
bsm
cam ctl: Fix CTL GET EVENT STATUS NOTIFICATION valid bits 2024-04-29 08:37:30 -06:00
cddl
compat Fix new users of MAXPHYS and hide it from the kernel namespace 2024-04-30 15:29:06 -04:00
conf guestrpc module to handle VMware backdoor port GuestRPC functionality 2024-05-01 15:45:45 -04:00
contrib
crypto
ddb
dev cxgbe/tom: Fix the rx channel selection in options2. 2024-04-30 17:07:15 -07:00
dts
fs unionfs_rename: fix numerous locking issues 2024-04-28 20:19:48 -05:00
gdb
geom glabel: Add support for Linux swap 2024-04-28 22:39:47 -06:00
gnu
i386
isa
kern sysctl: Make sysctl_ctx_free() a bit safer 2024-05-02 15:42:28 -04:00
kgssapi
libkern
modules linuxkpi: Add linuxkpi_video module 2024-04-30 07:42:31 +02:00
net if_bridge: Minor style fixes 2024-04-26 02:19:11 +08:00
net80211
netgraph ng_pipe: Do not panic when memory allocations fail 2024-04-24 08:44:50 -04:00
netinet in_pcb: don't leak credential refcounts on error 2024-05-01 08:41:26 +02:00
netinet6 in6.h: expose s6_addr* definitions to user level 2024-05-02 10:24:37 -05:00
netipsec
netlink pf: convert DIOCGETSTATUS to netlink 2024-04-29 16:32:23 +02:00
netpfil pflow: handle unattached states 2024-04-29 18:13:19 +02:00
netsmb
nfs
nfsclient
nfsserver
nlm
ofed
opencrypto
powerpc
riscv
rpc krpc: Ref cnt the client structures for TLS upcalls 2024-04-26 17:55:24 -07:00
security
sys sdt: Add macros which expand to probe and provider structure names 2024-05-01 07:49:35 -04:00
teken
tests
tools
ufs
vm vm: Fix error handling in vm_thread_stack_back() 2024-04-30 09:45:48 -04:00
x86 guestrpc module to handle VMware backdoor port GuestRPC functionality 2024-05-01 15:45:45 -04:00
xdr
xen
Makefile
README.md

FreeBSD Kernel Source:

This directory contains the source files and build glue that make up the FreeBSD kernel and its modules, including both original and contributed software.

Kernel configuration files are located in the conf/ subdirectory of each architecture. GENERIC is the configuration used in release builds. NOTES contains documentation of all possible entries. LINT is a compile-only configuration used to maximize build coverage and detect regressions.

Documentation:

Source code documentation is maintained in a set of man pages, under section 9. These pages are located in share/man/man9, from the top-level of the src tree. Consult intro(9) for an overview of existing pages.

Some additional high-level documentation of the kernel is maintained in the Architecture Handbook.

Source Roadmap:

Directory Description
amd64 AMD64 (64-bit x86) architecture support
arm 32-bit ARM architecture support
arm64 64-bit ARM (AArch64) architecture support
cam Common Access Method storage subsystem - cam(4) and ctl(4)
cddl CDDL-licensed optional sources such as DTrace
conf kernel build glue
compat Linux compatibility layer, FreeBSD 32-bit compatibility
contrib 3rd-party imported software such as OpenZFS
crypto crypto drivers
ddb interactive kernel debugger - ddb(4)
fs most filesystems, excluding UFS, NFS, and ZFS
dev device drivers and other arch independent code
gdb kernel remote GDB stub - gdb(4)
geom GEOM framework - geom(4)
i386 i386 (32-bit x86) architecture support
kern main part of the kernel
libkern libc-like and other support functions for kernel use
modules kernel module infrastructure
net core networking code
net80211 wireless networking (IEEE 802.11) - net80211(4)
netgraph graph-based networking subsystem - netgraph(4)
netinet IPv4 protocol implementation - inet(4)
netinet6 IPv6 protocol implementation - inet6(4)
netipsec IPsec protocol implementation - ipsec(4)
netpfil packet filters - ipfw(4), pf(4), and ipfilter(4)
opencrypto OpenCrypto framework - crypto(7)
powerpc PowerPC/POWER (32 and 64-bit) architecture support
riscv 64-bit RISC-V architecture support
security security facilities - audit(4) and mac(4)
sys kernel headers
tests kernel unit tests
ufs Unix File System - ffs(7)
vm virtual memory system
x86 code shared by AMD64 and i386 architectures