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* rpc: Fix the definition of xdr_void()Mark Johnston2024-10-301-2/+1
| | | | | | | | | xdr_void() should have type xdrproc_t, make it so. PR: 280514 Reviewed by: brooks, dim MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D47340
* sys: Remove ancient SCCS tags.Warner Losh2023-11-271-4/+0
| | | | | | | | Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix
* sys: Remove $FreeBSD$: one-line .c patternWarner Losh2023-08-161-2/+0
| | | | Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
* xdr: store chars consistentlyBrooks Davis2023-01-121-4/+4
| | | | | | | | | | | | | | | | | | Cast char's through unsigned char before storing as an integer in xdr_char(), this ensures that the encoded form is consistently not sign-extended following Open Solaris's example. Prior to this change, platforms with signed chars would sign extend values with the high bit set but ones with unsigned chars would not so 0xff would be stored as 0x000000ff on unsigned char platforms and 0xffffffff on signed char platforms. Decoding has the same result for either form so this is a largely cosmetic change, but it seems best to produce consistent output. For more discussion, see https://github.com/openzfs/zfs/issues/14173 Reviewed by: mav, imp Differential Revision: https://reviews.freebsd.org/D37992
* xdr: clean up empty lines in .c and .h filesMateusz Guzik2020-09-011-25/+1
| | | | Notes: svn path=/head/; revision=365224
* Split XDR into separate kernel module. Make krpc depend on xdr.Gleb Smirnoff2020-04-171-0/+18
| | | | | | | | Reviewed by: rmacklem Differential Revision: https://reviews.freebsd.org/D24408 Notes: svn path=/head/; revision=360036
* Move M_RPC malloc type into XDR. Both RPC and XDR libraries useGleb Smirnoff2020-04-171-0/+2
| | | | | | | | | | | this type, but since RPC depends on XDR (not vice versa) we need it defined in XDR to make the module loadable without RPC. Reviewed by: rmacklem Differential Revision: https://reviews.freebsd.org/D24408 Notes: svn path=/head/; revision=360035
* * limit size of buffers to RPC_MAXDATASIZEXin LI2017-06-011-5/+25
| | | | | | | | | | | | | | | | | | | * don't leak memory * be more picky about bad parameters From: https://raw.githubusercontent.com/guidovranken/rpcbomb/master/libtirpc_patch.txt https://github.com/guidovranken/rpcbomb/blob/master/rpcbind_patch.txt via NetBSD. Reviewed by: emaste, cem (earlier version) Differential Revision: https://reviews.freebsd.org/D10922 MFC after: 3 days Notes: svn path=/head/; revision=319369
* Add the new kernel-mode NFS Lock Manager. To use it instead of theDoug Rabson2008-03-261-0/+816
user-mode lock manager, build a kernel with the NFSLOCKD option and add '-k' to 'rpc_lockd_flags' in rc.conf. Highlights include: * Thread-safe kernel RPC client - many threads can use the same RPC client handle safely with replies being de-multiplexed at the socket upcall (typically driven directly by the NIC interrupt) and handed off to whichever thread matches the reply. For UDP sockets, many RPC clients can share the same socket. This allows the use of a single privileged UDP port number to talk to an arbitrary number of remote hosts. * Single-threaded kernel RPC server. Adding support for multi-threaded server would be relatively straightforward and would follow approximately the Solaris KPI. A single thread should be sufficient for the NLM since it should rarely block in normal operation. * Kernel mode NLM server supporting cancel requests and granted callbacks. I've tested the NLM server reasonably extensively - it passes both my own tests and the NFS Connectathon locking tests running on Solaris, Mac OS X and Ubuntu Linux. * Userland NLM client supported. While the NLM server doesn't have support for the local NFS client's locking needs, it does have to field async replies and granted callbacks from remote NLMs that the local client has contacted. We relay these replies to the userland rpc.lockd over a local domain RPC socket. * Robust deadlock detection for the local lock manager. In particular it will detect deadlocks caused by a lock request that covers more than one blocking request. As required by the NLM protocol, all deadlock detection happens synchronously - a user is guaranteed that if a lock request isn't rejected immediately, the lock will eventually be granted. The old system allowed for a 'deferred deadlock' condition where a blocked lock request could wake up and find that some other deadlock-causing lock owner had beaten them to the lock. * Since both local and remote locks are managed by the same kernel locking code, local and remote processes can safely use file locks for mutual exclusion. Local processes have no fairness advantage compared to remote processes when contending to lock a region that has just been unlocked - the local lock manager enforces a strict first-come first-served model for both local and remote lockers. Sponsored by: Isilon Systems PR: 95247 107555 115524 116679 MFC after: 2 weeks Notes: svn path=/head/; revision=177633