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* x86: compat_binfmt_elf KconfigRoland McGrath2008-01-30
| | | | | | | | | | This adds Kconfig and Makefile bits to build fs/compat_binfmt_elf.c, just added. Each arch that wants to use this file needs to add a "select COMPAT_BINFMT_ELF" line in its Kconfig bits that enable COMPAT. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: compat_binfmt_elfRoland McGrath2008-01-30
| | | | | | | | | | | | | | | | | | | | This adds fs/compat_binfmt_elf.c, a wrapper around fs/binfmt_elf.c for 32-bit ELF support on 64-bit kernels. It can replace all the hand-rolled versions of this that each 32/64 arch has, which are all about the same. To use this, an arch's asm/elf.h has to define at least a few compat_* macros that parallel the various macros that fs/binfmt_elf.c uses for native support. There is no attempt to deal with compat macros for the core dump format support. To use this file, the arch has to define compat_gregset_t for linux/elfcore-compat.h and #define CORE_DUMP_USE_REGSET. The 32-bit compatible formats should come automatically from task_user_regset_view called on a 32-bit task. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* elf core dump: notes user_regsetRoland McGrath2008-01-30
| | | | | | | | | | | | | | | | | | This modifies the ELF core dump code under #ifdef CORE_DUMP_USE_REGSET. It changes nothing when this macro is not defined. When it's #define'd by some arch header (e.g. asm/elf.h), the arch must support the user_regset (linux/regset.h) interface for reading thread state. This provides an alternate version of note segment writing that is based purely on the user_regset interfaces. When CORE_DUMP_USE_REGSET is set, the arch need not define macros such as ELF_CORE_COPY_REGS and ELF_ARCH. All that information is taken from the user_regset data structures. The core dumps come out exactly the same if arch's definitions for its user_regset details are correct. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* elf core dump: notes reorgRoland McGrath2008-01-30
| | | | | | | | | | | | | | | This pulls out the code for writing the notes segment of an ELF core dump into separate functions. This cleanly isolates into one cluster of functions everything that deals with the note formats and the hooks into arch code to fill them. The top-level elf_core_dump function itself now deals purely with the generic ELF format and the memory segments. This only moves code around into functions that can be inlined away. It should not change any behavior at all. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* spinlock: lockbreak cleanupNick Piggin2008-01-30
| | | | | | | | | | | | | | | | | | | | The break_lock data structure and code for spinlocks is quite nasty. Not only does it double the size of a spinlock but it changes locking to a potentially less optimal trylock. Put all of that under CONFIG_GENERIC_LOCKBREAK, and introduce a __raw_spin_is_contended that uses the lock data itself to determine whether there are waiters on the lock, to be used if CONFIG_GENERIC_LOCKBREAK is not set. Rename need_lockbreak to spin_needbreak, make it use spin_is_contended to decouple it from the spinlock implementation, and make it typesafe (rwlocks do not have any need_lockbreak sites -- why do they even get bloated up with that break_lock then?). Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* core: remove last users of empty FASTCALL macroHarvey Harrison2008-01-30
| | | | | | | | FASTCALL is always empty after the x86 removal. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: PIE executable randomization, checkpatch fixesAndrew Morton2008-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | #39: FILE: arch/ia64/ia32/binfmt_elf32.c:229: +elf32_map (struct file *filep, unsigned long addr, struct elf_phdr *eppnt, int prot, int type, unsigned long unused) WARNING: no space between function name and open parenthesis '(' #39: FILE: arch/ia64/ia32/binfmt_elf32.c:229: +elf32_map (struct file *filep, unsigned long addr, struct elf_phdr *eppnt, int prot, int type, unsigned long unused) WARNING: line over 80 characters #67: FILE: arch/x86/kernel/sys_x86_64.c:80: + new_begin = randomize_range(*begin, *begin + 0x02000000, 0); ERROR: use tabs not spaces #110: FILE: arch/x86/kernel/sys_x86_64.c:185: + ^I mm->cached_hole_size = 0;$ ERROR: use tabs not spaces #111: FILE: arch/x86/kernel/sys_x86_64.c:186: + ^I^Imm->free_area_cache = mm->mmap_base;$ ERROR: use tabs not spaces #112: FILE: arch/x86/kernel/sys_x86_64.c:187: + ^I}$ ERROR: use tabs not spaces #141: FILE: arch/x86/kernel/sys_x86_64.c:216: + ^I^I/* remember the largest hole we saw so far */$ ERROR: use tabs not spaces #142: FILE: arch/x86/kernel/sys_x86_64.c:217: + ^I^Iif (addr + mm->cached_hole_size < vma->vm_start)$ ERROR: use tabs not spaces #143: FILE: arch/x86/kernel/sys_x86_64.c:218: + ^I^I mm->cached_hole_size = vma->vm_start - addr;$ ERROR: use tabs not spaces #157: FILE: arch/x86/kernel/sys_x86_64.c:232: + ^Imm->free_area_cache = TASK_UNMAPPED_BASE;$ ERROR: need a space before the open parenthesis '(' #291: FILE: arch/x86/mm/mmap_64.c:101: + } else if(mmap_is_legacy()) { WARNING: braces {} are not necessary for single statement blocks #302: FILE: arch/x86/mm/mmap_64.c:112: + if (current->flags & PF_RANDOMIZE) { + mm->mmap_base += ((long)rnd) << PAGE_SHIFT; + } WARNING: line over 80 characters #314: FILE: fs/binfmt_elf.c:48: +static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int, unsigned long); WARNING: no space between function name and open parenthesis '(' #314: FILE: fs/binfmt_elf.c:48: +static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int, unsigned long); WARNING: line over 80 characters #429: FILE: fs/binfmt_elf.c:438: + eppnt, elf_prot, elf_type, total_size); ERROR: need space after that ',' (ctx:VxV) #480: FILE: fs/binfmt_elf.c:939: + elf_prot, elf_flags,0); ^ total: 9 errors, 7 warnings, 461 lines checked Your patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Jakub Jelinek <jakub@redhat.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: PIE executable randomizationJiri Kosina2008-01-30
| | | | | | | | | | | | | | | | | | | | | | main executable of (specially compiled/linked -pie/-fpie) ET_DYN binaries onto a random address (in cases in which mmap() is allowed to perform a randomization). The code has been extraced from Ingo's exec-shield patch http://people.redhat.com/mingo/exec-shield/ [akpm@linux-foundation.org: fix used-uninitialsied warning] [kamezawa.hiroyu@jp.fujitsu.com: fixed ia32 ELF on x86_64 handling] Signed-off-by: Jiri Kosina <jkosina@suse.cz> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Roland McGrath <roland@redhat.com> Cc: Jakub Jelinek <jakub@redhat.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: randomize brkJiri Kosina2008-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Randomize the location of the heap (brk) for i386 and x86_64. The range is randomized in the range starting at current brk location up to 0x02000000 offset for both architectures. This, together with pie-executable-randomization.patch and pie-executable-randomization-fix.patch, should make the address space randomization on i386 and x86_64 complete. Arjan says: This is known to break older versions of some emacs variants, whose dumper code assumed that the last variable declared in the program is equal to the start of the dynamically allocated memory region. (The dumper is the code where emacs effectively dumps core at the end of it's compilation stage; this coredump is then loaded as the main program during normal use) iirc this was 5 years or so; we found this way back when I was at RH and we first did the security stuff there (including this brk randomization). It wasn't all variants of emacs, and it got fixed as a result (I vaguely remember that emacs already had code to deal with it for other archs/oses, just ifdeffed wrongly). It's a rare and wrong assumption as a general thing, just on x86 it mostly happened to be true (but to be honest, it'll break too if gcc does something fancy or if the linker does a non-standard order). Still its something we should at least document. Note 2: afaik it only broke the emacs *build*. I'm not 100% sure about that (it IS 5 years ago) though. [ akpm@linux-foundation.org: deuglification ] Signed-off-by: Jiri Kosina <jkosina@suse.cz> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Roland McGrath <roland@redhat.com> Cc: Jakub Jelinek <jakub@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* NFSv4: Iterate through all nfs_clients when the server recalls a delegationTrond Myklebust2008-01-30
| | | | | | | The same delegation may have been handed out to more than one nfs_client. Ensure that if a recall occurs, we return all instances. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4: Deal more correctly with duplicate delegationsTrond Myklebust2008-01-30
| | | | | | | If a (broken?) server hands out two different delegations for the same file, then we should return one of them. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Fix a potential race between umount and nfs_access_cache_shrinker()Trond Myklebust2008-01-30
| | | | | | Thanks to Yawei Niu for spotting the race. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Add an asynchronous delegreturn operation for use in nfs_clear_inodeTrond Myklebust2008-01-30
| | | | | | | | Otherwise, there is a potential deadlock if the last dput() from an NFSv4 close() or other asynchronous operation leads to nfs_clear_inode calling the synchronous delegreturn. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* nfs: convert NFS_*(inode) helpers to static inlineBenny Halevy2008-01-30
| | | | | Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* nfs: obliterate NFS_FLAGS macroBenny Halevy2008-01-30
| | | | | | | use NFS_I(inode)->flags instead Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Address memory leaks in the NFS client mount option parserChuck Lever2008-01-30
| | | | | | | | | | | | | | | David Howells noticed that repeating the same mount option twice during an NFS mount request can result in orphaned memory in certain cases. Only the client_address and mount_server.hostname strings are initialized in the mount parsing loop, so those appear to be the only two pointers that might be written over by repeating a mount option. The strings in the nfs_server section of the nfs_parsed_mount_data structure are set only once after the options are parsed, thus these are not susceptible to being overwritten. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* nfs4: allow nfsv4 acls on non-regular-filesJ. Bruce Fields2008-01-30
| | | | | | | | | | | | The rfc doesn't give any reason it shouldn't be possible to set an attribute on a non-regular file. And if the server supports it, then it shouldn't be up to us to prevent it. Thanks to Erez for the report and Trond for further analysis. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Tested-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Optimise away the sigmask code in aio/dio reads and writesTrond Myklebust2008-01-30
| | | | | | | | | | | | There are no interruptible waits for asynchronous RPC tasks, so we don't need to wrap calls to rpc_run_task() with an rpc_clnt_sigmask/rpc_clnt_unsigmask pair. Instead we can wrap the wait_for_completion_interruptible() in nfs_direct_wait(). This means that we completely optimise away sigmask setting for the case of non-blocking aio/dio. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NLM: Fix a bogus 'return' in nlmclnt_rpc_releaseTrond Myklebust2008-01-30
| | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NLM: Introduce an arguments structure for nlmclnt_init()Chuck Lever2008-01-30
| | | | | | | Clean up: pass 5 arguments to nlmclnt_init() in a structure similar to the new nfs_client_initdata structure. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
* NLM/NFS: Use cached nlm_host when calling nlmclnt_proc()Chuck Lever2008-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that each NFS mount point caches its own nlm_host structure, it can be passed to nlmclnt_proc() for each lock request. By pinning an nlm_host for each mount point, we trade the overhead of looking up or creating a fresh nlm_host struct during every NLM procedure call for a little extra memory. We also restrict the nlmclnt_proc symbol to limit the use of this call to in-tree modules. Note that nlm_lookup_host() (just removed from the client's per-request NLM processing) could also trigger an nlm_host garbage collection. Now client-side nlm_host garbage collection occurs only during NFS mount processing. Since the NFS client now holds a reference on these nlm_host structures, they wouldn't have been affected by garbage collection anyway. Given that nlm_lookup_host() reorders the global nlm_host chain after every successful lookup, and that a garbage collection could be triggered during the call, we've removed a significant amount of per-NLM-request CPU processing overhead. Sidebar: there are only a few remaining references to the internals of NFS inodes in the client-side NLM code. The only references I found are related to extracting or comparing the inode's file handle via NFS_FH(). One is in nlmclnt_grant(); the other is in nlmclnt_setlockargs(). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Invoke nlmclnt_init during NFS mount processingChuck Lever2008-01-30
| | | | | | | | | | | | Cache an appropriate nlm_host structure in the NFS client's mount point metadata for later use. Note that there is no need to set NFS_MOUNT_NONLM in the error case -- if nfs_start_lockd() returns a non-zero value, its callers ensure that the mount request fails outright. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NLM: Introduce external nlm_host set-up and tear-down functionsChuck Lever2008-01-30
| | | | | | | | | | | | | | | | | We would like to remove the per-lock-operation nlm_lookup_host() call from nlmclnt_proc(). The new architecture pins an nlm_host structure to each NFS client superblock that has the "lock" mount option set. The NFS client passes in the pinned nlm_host structure during each call to nlmclnt_proc(). NFS client unmount processing "puts" the nlm_host so it can be garbage- collected later. This patch introduces externally callable NLM functions that handle mount-time nlm_host set up and tear-down. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* lockd: Eliminate harmless mixed sign comparison in nlmdbg_cookie2a()Chuck Lever2008-01-30
| | | | | | | | The cookie->len field is unsigned, so the loop index variable in nlmdbg_cookie2a() should also be unsigned. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: nfs_write_end clean upChuck Lever2008-01-30
| | | | | | | | | Clean up: commit 4899f9c8 added nfs_write_end(), which introduces a conditional expression that returns an unsigned integer in one arm and a signed integer in the other. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Fix minor mixed sign comparison in NFS client's write logicChuck Lever2008-01-30
| | | | | | | Clean up: PAGE_CACHE_SIZE is unsigned, and nfs_pageio_init() takes a size_t. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Use size_t for storing name lengthsChuck Lever2008-01-30
| | | | | | | | Clean up: always use the same type when handling buffer lengths. As a bonus, this prevents a mixed sign comparison in idmap_lookup_name. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Fix use of copy_to_user() in idmap_pipe_upcallChuck Lever2008-01-30
| | | | | | | | | The idmap_pipe_upcall() function expects the copy_to_user() function to return a negative error value if the call fails, but copy_to_user() returns an unsigned long number of bytes that couldn't be copied. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Clean up fs/nfs/idmap.cChuck Lever2008-01-30
| | | | | | | | Clean up white space damage and use standard kernel coding conventions for return statements. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Fix the 'proto=' mount optionTrond Myklebust2008-01-30
| | | | | | | | Currently, if you have a server mounted using networking protocol, you cannot specify a different value using the 'proto=' option on another mountpoint. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Support per-mountpoint timeout parameters.Trond Myklebust2008-01-30
| | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Ensure that we respect NFS_MAX_TCP_TIMEOUTTrond Myklebust2008-01-30
| | | | | | | It isn't sufficient just to limit timeout->to_initval, we also need to limit to_maxval. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4: Add socket proto argument to setclientidTrond Myklebust2008-01-30
| | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Pull covers off IPv6 address parsingChuck Lever2008-01-30
| | | | | | | | Now that the needed IPv6 infrastructure is in place, allow the NFS client's IP address parser to generate AF_INET6 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Support non-IPv4 addresses in nfs_parsed_mount_dataChuck Lever2008-01-30
| | | | | | | | | | Replace the nfs_server and mount_server address fields in the nfs_parsed_mount_data structure with a "struct sockaddr_storage" instead of a "struct sockaddr_in". Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Refactor mount option address parsing into separate functionChuck Lever2008-01-30
| | | | | | | | | | | | | | | Refactor the logic to parse incoming text-based IP addresses. Use the in4_pton() function instead of the older in_aton(), following the lead of the in-kernel CIFS client. Later we'll add IPv6 address parsing using the matching in6_pton() function. For now we can't allow IPv6 address parsing: we must expand the size of the address storage fields in the nfs_parsed_mount_options struct before we can parse and store IPv6 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Remove the NIPQUAD from nfs_try_mountChuck Lever2008-01-30
| | | | | | | | | | In the name of address family compatibility, we can't have the NIP_FMT and NIPQUAD macros in nfs_try_mount(). Instead, we can make use of an unused mount option to display the mount server's hostname. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Adjust nfs_clone_mount structure to store "struct sockaddr *"Chuck Lever2008-01-30
| | | | | | | | | | | | | | | | Change the addr field in the nfs_clone_mount structure to store a "struct sockaddr *" to support non-IPv4 addresses in the NFS client. Note this is mostly a cosmetic change, and does not actually allow referrals using IPv6 addresses. The existing referral code assumes that the server returns a string that represents an IPv4 address. This code needs to support hostnames and IPv6 addresses as well as IPv4 addresses, thus it will need to be reorganized completely (to handle DNS resolution in user space). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Change nfs4_set_client() to accept struct sockaddr *Chuck Lever2008-01-30
| | | | | | | | | | Adjust the arguments and callers of nfs4_set_client() to pass a "struct sockaddr *" instead of a "struct sockaddr_in *" to support non-IPv4 addresses in the NFS client. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Change nfs_get_client() to take sockaddr *Chuck Lever2008-01-30
| | | | | | | | | | Adjust arguments and callers of nfs_get_client() to pass a "struct sockaddr *" instead of "struct sockaddr_in *" to support non-IPv4 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Change nfs_find_client() to take "struct sockaddr *"Chuck Lever2008-01-30
| | | | | | | | | | | | | | Adjust arguments and callers of nfs_find_client() to pass a "struct sockaddr *" instead of "struct sockaddr_in *" to support non-IPv4 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Trond: Also fix up protocol version number argument in nfs_find_client() to use the correct u32 type. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Change cb_recallargs to pass "struct sockaddr *" instead of sockaddr_inChuck Lever2008-01-30
| | | | | | | | | Change the addr field in the cb_recallargs struct to a "struct sockaddr *" to support non-IPv4 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Change cb_getattrargs to pass "struct sockaddr *" instead of sockaddr_inChuck Lever2008-01-30
| | | | | | | | | Change the addr field in the cb_getattrargs struct to a "struct sockaddr *" to support non-IPv4 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Expand server address storage in nfs_client structChuck Lever2008-01-30
| | | | | | | | | | | Prepare for managing larger addresses in the NFS client by widening the nfs_client struct's cl_addr field. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> (Modified to work with the new parameters for nfs_alloc_client) Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Add support for AF_INET6 addresses in __nfs_find_client()Trond Myklebust2008-01-30
| | | | | | Introduce AF_INET6-specific address checking to __nfs_find_client(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Set default port for NFSv4, with support for AF_INET6Chuck Lever2008-01-30
| | | | | | | | Create a helper function to set the default NFS port for NFSv4 mount points. The helper supports both AF_INET and AF_INET6 family addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Make setting a port number agosticChuck Lever2008-01-30
| | | | | | | | | We'll need to set the port number of an AF_INET or AF_INET6 address in several places in fs/nfs/super.c, so introduce a helper that can manage this for us. We put this helper to immediate use. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Verify IPv6 addresses properlyChuck Lever2008-01-30
| | | | | | | | Add support to nfs_verify_server_address for recognizing AF_INET6 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Add support for AF_INET6 addresses in nfs_compare_super()Chuck Lever2008-01-30
| | | | | | | | | | | | | | Refactor nfs_compare_super() and add AF_INET6 support. Replace the generic memcmp() to document explicitly what parts of the addresses must match in this check, and make the comparison independent of the lengths of both addresses. A side benefit is both tests are more computationally efficient than a memcmp(). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Address a couple of nits in nfs_follow_referral()Chuck Lever2008-01-30
| | | | | | | | Clean up: fix an outdated block comment, and address a comparison between a signed and unsigned integer. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-27 01:18:24 -0500