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* procfs: Fix coding styleSamuel Thibault2025-01-271-22/+22
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* Add partial /proc/cpuinfo implementationDiego Nieto Cid2025-01-271-0/+219
| | | | | | | * procfs/rootdir.c: (rootdir_gc_cpuinfo) new function (rootdir_entries) add entry for cpuinfo file (cpuinfo_x86, cpuinfo_aarch64) implementations for x86 and aarch64 respectively.
* procfs: remove unused rootdir_symlink_make_nodeFlavio Cruz2024-09-081-8/+0
| | | | | Not needed since b2c97e251bb470e6f967c716081675a96dbde59c Message-ID: <20240121210757.1900938-2-flaviocruz@gmail.com>
* procfs: fix MemTotal 4G memory clamp on 32bit systemsSamuel Thibault2024-03-061-1/+4
| | | | Using vmstats allows to get up to 16T.
* Homogeneize [gs]et_translator and get_dire[nc]ts into mach_msg_type_number_tSamuel Thibault2023-08-084-5/+5
| | | | | | | | | | | | | | | | | This makes netfs_[gs]et_translator use mach_msg_type_number_t like the RPC and diskfs. This also makes the fshelp_fetch_root_callback1_t for fshelp_fetch_root use mach_msg_type_number_t. This also makes procfs_get_translator and the get_translator proc method use mach_msg_type_number_t. This makes diskfs_get_directs use mach_msg_type_number_t like the dir_readdir RPC Also get rid of u_int. This notably fixes _diskfs_translator_callback1_fn's bogus cast of size_t *argz_len into (u_int *).
* Style tweaksSergey Bugaev2023-05-101-2/+2
| | | | Message-Id: <20230508213136.608575-42-bugaevc@gmail.com>
* procfs: Port to x86_64Sergey Bugaev2023-05-102-13/+13
| | | | Message-Id: <20230508213136.608575-36-bugaevc@gmail.com>
* procfs: Fix process creation time in /proc/pid/statSergey Bugaev2023-04-181-1/+1
| | | | | | | | | | | | This was always showing up as 0, because apparently we need to query creation_time for the task, not a thread. Here's a before vs after comparison: $ cat /proc/self/stat ~/procfs/self/stat 11151 (cat) S 26571 11151 26571 0 0 0 0 0 0 0 1 0 0 0 20 0 2 0 0 154783744 251 0 134443008 134477480 0 0 0 0 0 0 0 21001 0 0 0 0 0 0 0 11151 (cat) S 26571 11151 26571 0 0 0 0 0 0 0 1 0 0 0 20 0 2 0 168174516295 154783744 260 0 134443008 134477480 0 0 0 0 0 0 0 21001 0 0 0 0 0 0 0 Message-Id: <20230418104902.12263-1-bugaevc@gmail.com>
* Use default pager MiG stubs from Hurd instead of gnumachFlavio Cruz2023-04-071-1/+0
| | | | | | | | | | | | Hurd code relies on gnumach default_pager.defs headers when making calls using the default pager RPC. Those stubs were checked in back in the 90s and are essentially unused because gnumach does not implement or use that interface. Instead use the Hurd interface directly. This is safe since the Hurd stubs are a super set of the gnumach stubs. Later, we won't need to install the gnumach stubs anymore through glibc. Message-Id: <ZC5WqPKfCCiE8D29@jupiter.tail36e24.ts.net>
* Fix accessing bit 31Samuel Thibault2023-02-151-3/+3
| | | | | Shifting (signed) 1 to left 31 positions is undefined behavior. So make this an unsigned so it becomes defined behavior.
* procfs: Actually add padding to align struct direntSamuel Thibault2023-02-031-0/+2
| | | | | d21b09b32895 was computing the amount and filling it, but not actually enforcing it.
* Avoid unaligned memory accessesSamuel Thibault2023-02-021-1/+3
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* procfs: Add padding to align struct direntSamuel Thibault2023-02-021-1/+6
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* procfs: Fix checking underrunSamuel Thibault2023-01-011-2/+2
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* procfs: Avoid fclosing NULL on memory shortageSamuel Thibault2023-01-011-1/+2
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* Fix *printf specifier for user space mach ports.Flavio Cruz2022-12-061-1/+1
| | | | | mach_port_t are mach_port_name_t and thus require %u instead of %lu. Message-Id: <Y42RELMbulK4xaKM@reue>
* procfs: Populate /proc/route with network routesDamien Zammit2022-09-202-1/+78
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* Fix const warningsSamuel Thibault2022-01-171-10/+10
| | | | | Now that the RPCs have const, this forces us cleaning our const-meant functions.
* procfs: Fix use-after-freeSergey Bugaev2021-05-241-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix several issues with reference counting in rootdir_make_translated_node (): * Grab an additional reference while still holding the lock. * Give the node an additional reference for being pointed to by the ops. * Reference the existing node if we find it on the second try, not only if we find it on the first try. * Dereference, not just clean, the created node if it turns out to be unneeded. Fixes a crash with the following backtrace: #2 0x010855c8 in __assert_fail_backtrace ( assertion=0x1051148 "! (r.hard == 1 && r.weak == 0) || !\"refcount detected use-after-free!\"", file=0x1050cec "../../libshouldbeinlibc/refcount.h", line=170, function=0x1051220 <__PRETTY_FUNCTION__.3> "refcounts_ref") at ../../libshouldbeinlibc/assert-backtrace.c:64 #3 0x01050358 in refcounts_ref (result=0x0, ref=0x15009a0) at ../../libshouldbeinlibc/refcount.h:170 #4 netfs_nref (np=0x15008f0) at ../../libnetfs/nref.c:26 #5 0x0804c9f4 in rootdir_make_translated_node (dir_hook=0x10001990, entry_hook=0x8055180 <__compound_literal.8>) at ../../procfs/rootdir.c:674 #6 0x0804ace3 in procfs_dir_lookup (hook=0x10001c10, name=0x2857efc "mounts", np=0x2855d68) at ../../procfs/procfs_dir.c:88 #7 0x0804a410 in procfs_lookup (np=0x10001c40, name=0x2857efc "mounts", npp=0x2855d68) at ../../procfs/procfs.c:185 #8 0x0804cae5 in dircat_lookup (hook=0x10001d50, name=0x2857efc "mounts", np=0x2855d68) at ../../procfs/dircat.c:76 #9 0x0804a410 in procfs_lookup (np=0x10001d80, name=0x2857efc "mounts", npp=0x2855d68) at ../../procfs/procfs.c:185 #10 0x0804a96f in netfs_attempt_lookup (user=0x1401c60, dir=0x10001d80, name=0x2857efc "mounts", np=0x2855d68) at ../../procfs/netfs.c:212 #11 0x0103fd5b in netfs_S_dir_lookup (dircred=<optimized out>, filename=<optimized out>, flags=<optimized out>, mode=<optimized out>, do_retry=<optimized out>, retry_name=<optimized out>, retry_port=<optimized out>, retry_port_type=<optimized out>) at ../../libnetfs/dir-lookup.c:175 Message-Id: <20210524154340.264885-2-bugaevc@gmail.com>
* procfs: fix getting last_processor fieldSamuel Thibault2019-10-311-1/+1
| | | | | * procfs/process.c (entries): Add PSTAT_THREAD_SCHED in `needs' field of entry for process_file_gc_stat.
* procfs: Fix asprintf formatSamuel Thibault2019-10-311-1/+1
| | | | | | | | Last_processor is an int in the proc info, and there aren't really plans for machines with more than 4 billion processors. * procfs/process.c (process_file_gc_stat): Make last_processor unsigned instead of long unsigned.
* proc: add support for last_processorAlmudena Garcia2019-10-311-1/+11
| | | | | | | | | | | | | | | Read last_processor (new member) from thread_info structures, and fill stat structure with this. * configure.ac: Check whether thread_sched_info structure includes `last_processor' member. * proc/info.c (S_proc_getprocinfo) [HAVE_STRUCT_THREAD_SCHED_INFO_LAST_PROCESSOR]: Set `last_processor' field. * procfs/process.c (process_file_gc_stat) [HAVE_STRUCT_THREAD_SCHED_INFO_LAST_PROCESSOR]: Set last processor proc field to `thsi->last_processor'. [!HAVE_STRUCT_THREAD_SCHED_INFO_LAST_PROCESSOR]: Set last processor proc field to 0.
* Implement /proc/<pid>/exeSamuel Thibault2018-01-081-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | by adding proc_set/get_exe to the proc server, making exec call proc_set_exe, and libps call proc_get_exe. procfs can then just retrieve the information to make the "exe" symlink. * hurd/process.defs (proc_set_exe, proc_get_exe): New RPCs. * hurd/process_request.defs: Likewise. * hurd/process_reply.defs: Add skips for proc_set_exe and proc_get_exe RPCs. * proc/proc.h (struct proc): Add `exe' field. * proc/info.c (S_proc_set_exe, S_proc_get_exe): New functions. * proc/mgt.c (process_has_exited): Free p->exe. (S_proc_child): Duplicate parent `exe' into child's `exe'. * exec/exec.c (do_exec): Call proc_set_exe when a filename is available. * libps/ps.h (struct proc_stat): Add `exe_vm_alloced', `exe', and `exe_len' field. (PSTAT_EXE): New macro. (PSTAT_USER_BASE): Change value to make room. (proc_stat_exe, proc_stat_exe_len): New macros. * libps/procstat.c (proc_stat_set_flags): Handle PSTAT_EXE case by calling proc_get_exe. * libps/spec.c (ps_get_exe): New function. (ps_exe_getter): New structure. (ps_fmt_spec): Add "Exe" specification. * procfs/process.c (process_file_symlink_make_node, process_file_gc_exe): New functions. (procfs_dir_entry): Add "exe" entry. * startup/startup.c (launch_core_servers): Set exe paths for startup, auth, proc, and fs servers. (frob_kernel_process): Set exe path for kernel task. (S_startup_essential_task): Set exe path for exec server.
* Remove unused parameter from the 'get_source' machinery.Justus Winter2017-09-011-6/+4
| | | | | | | | | | | | | | | | | | | | | * libdiskfs/diskfs.h (diskfs_get_source): Remove first parameter. * libdiskfs/file-get-source.c (diskfs_S_file_get_source): Adapt callsite. * libdiskfs/get-source.c (diskfs_get_source): Adapt default implementation. * libnetfs/netfs.h (netfs_get_source): Remove first parameter. * libnetfs/file-get-source.c (netfs_S_file_get_source): Adapt callsite. * libnetfs/get-source.c (netfs_get_source): Adapt default implementation. * libtrivfs/trivfs.h (trivfs_get_source): Remove first parameter. * libtrivfs/file-get-source.c (trivfs_S_file_get_source): Adapt callsite. * libtrivfs/get-source.c (trivfs_get_source): Adapt default implementation. * nfs/main.c (netfs_get_source): Adapt implementation. * procfs/main.c (netfs_get_source): Likewise. * trans/firmlink.c (trivfs_get_source): Likewise.
* Use our own variant of 'assert' and 'assert_perror'.Justus Winter2017-08-055-8/+8
| | | | | Our variants print stack traces on failures. This will make locating errors much easier.
* procfs: Provide 'hostinfo'.Justus Winter2017-08-051-1/+59
| | | | | * procfs/rootdir.c (rootdir_gc_hostinfo): New function. (rootdir_entries): New entry 'hostinfo'.
* procfs: Remove superfluous calls.Justus Winter2017-06-031-8/+0
| | | | | * procfs/rootdir.c (rootdir_gc_vmstat): Remove superfluous 'host_info' calls.
* procfs: provide magic retry response for /proc/selfJustus Winter2016-12-193-44/+4
| | | | | | | | | * hurd/hurd_types.h: Document the magic retry string `pid'. * hurd/paths.h (_HURD_MAGIC): New macro. * procfs/main.c: Remove all code related to faking /proc/self. * procfs/main.h: Likewise. * procfs/rootdir.c: Likewise. Instead, return the magic retry response `pid' for the `self' node.
* Fix "procfs" ChangeLog handlingThomas Schwinge2016-12-171-6/+0
| | | | | | | | | | | | | ..., so that the correct things get done for "make dist". * procfs/ChangeLog: Merge file into... * ChangeLog: ... this one, and elaborate some more. * Makefile (gen_start_commit, ChangeLog_files): Merge into... (ChangeLog_specs): ... this new variable. (ChangeLog_files): Rewrite in terms of that one. (gitlog-to-changelog_rev, ChangeLog_specs): Add entries for "procfs". (gen-ChangeLog): Handle that.
* procfs: Gracefully degrade meminfo.Justus Winter2016-10-151-12/+32
| | | | | * procfs/rootdir.c (rootdir_gc_meminfo): Just omit the swap information if the default pager is unreachable.
* Use swapon path as pager partition pathSamuel Thibault2016-03-241-1/+1
| | | | | | | | | | | When /dev/hd* entries are parted-partition storeio, the store name is only the disk name, thus not unique. We should just use the path being used instead. * sutils/swapon.c (swaponoff): Use `file' instead of `store->name' to default_pager_paging_file. (main): Drop hardcoded "/dev/". * procfs/rootdir.c (rootdir_gc_swaps): Drop hardcoded "/dev/".
* Fix swap information numbersSamuel Thibault2016-03-241-1/+1
| | | | | | * procfs/rootdir.c (rootdir_gc_swaps): Fix default_pager_storage_info call parameter order. * sutils/swapon.c (main): Likewise.
* netfs: Remove global reference count lock.Flavio Cruz2016-03-211-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * libnetfs/drop-node.c: Remove use of netfs_node_refcnt_lock. * libnetfs/init-init.c: Remove netfs_node_refcnt_lock. * libnetfs/make-node.c: Initialize refcounts in refcounts_init. * libnetfs/netfs.h: Use refcounts_t for tracking node references. Remove netfs_node_refcnt_lock. Add netfs_nref_light, netfs_nrele_light and handler netfs_try_dropping_softrefs. Adjust comments. * libnetfs/nput.c: Use refcounts_t. Call netfs_try_dropping_softrefs to remove any soft reference that the translator might have acquired during the lifetime of the node. Implement empty netfs_try_dropping_softrefs. * libnetfs/nref.c: Implement netfs_nref_light. * libnetfs/nrele.c: Use refcounts_t and netfs_try_dropping_softrefs. Implement netfs_nrele_light. * ftpfs/dir.c: Use netfs_nref without locking the old netfs_node_refcnt_lock. * ftpfs/node.c: Likewise. * usermux/mux.c: Use netfs_nref to increase hard references of the node. * hostmux/mux.c: Use netfs_nref to increase hard references of the node. * trans/fakeroot.c (new_node): Use a light reference when storing a node in the hash table. * trans/fakeroot.c (netfs_try_dropping_softrefs): Implement netfs_try_dropping_softrefs to remove the node from the hash table. * trans/fakeroot.c (netfs_node_norefs): Remove code to remove the node from the hash table. * trans/fakeroot.c (netfs_S_dir_lookup): Simplify lookup code since we don't need to lock netfs_node_refcnt_lock anymore. * procfs/netfs.c: Remove use of netfs_node_refcnt_lock. * nfs/cache.c: Add mutex to handle exclusive access to nodehash. This replaces the use of netfs_node_refcnt_lock. * nfs/cache.c (lookup_handle): Use nodehash_ihash_lock when accessing nodehash. Use netfs_nref_light to add one soft reference to the node just added to nodehash. * nfs/cache.c (netfs_node_norefs): Use netfs_nref. Don't use netfs_node_refcnt_lock and don't remove the node from nodehash here. * nfs/cache.c (netfs_try_dropping_softrefs): Drop the light reference when the node has no more hard references. * nfs/cache.c (recache_handle): Use nodehash_ihash_lock instead. * nfs/ops.c (netds_attempt_unlink): Use refcounts_references. * console/console.c (netfs_node_norefs): Use a soft reference to store a node in dir_node, cons_node, disp_node, inp_node. * console/console.c (netfs_try_dropping_softrefs): When dropping all soft references remove node pointer from the fields above.
* Add getting swap information from swapon and procfsSamuel Thibault2016-03-162-1/+59
| | | | | | | | | | | | | | | | | | | | | | | | * hurd/default_pager.defs (default_pager_storage_info): New RPC. * hurd/default_pager_reply.defs: Skip default_pager_storage_info RPC. * hurd/default_pager_types.h: Include <mach/machine/vm_types.h>. (vm_size_array_t): New type. * mach-defpager/priv.h (part): Add `name' field. * mach-defpager/default_pager.c (new_partition): Allocate and fill `part->name' field. Free it on error. (destroy_paging_partition): Free `part->name' field. (S_default_pager_storage_info): New function. * procfs/Makefile (SRCS): Add default_pagerUser.c. * procfs/rootdir.c: Include "default_pager_U.h". (rootdir_gc_swaps): New function. (rootdir_entries): Add "swaps" entry. * sutils/swapon.c: Include <argz.h> (show): New variable. (options): Add --show/-S option. (def_pager, dev_master): New variables (swaponoff): Move getting `def_pager' to... (get_def_pager): ... new function. (main): Support 'S' option. * trans/proxy-defpager.c (S_default_pager_storage_info): New function.
* procfs: adapt to kernel interface changeJustus Winter2016-02-231-5/+4
| | | | | | | procfs makes use of the debug interface which is subject to change. * procfs/rootdir.c (rootdir_gc_slabinfo): The flag CACHE_FLAGS_NO_RECLAIM is no longer used.
* Fix function nameSamuel Thibault2016-02-141-2/+2
| | | | | * procfs/main.c (set_default_options): Rename to set_compatibility_options. (argp_parser): Update call accordingly.
* procfs: Move setting default parameters to a separate functionSamuel Thibault2016-01-191-3/+8
| | | | | * procfs/main.c (set_default_options): New function (argp_parser): Call `set_default_options'.
* Drop OTHERLIBS and use LDLIBS exclusivelyFlavio Cruz2015-12-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When cross-compiling, OTHERLIBS magically turns -lpthread into the path to the host libpthread.so file, resulting in build issues. LDLIBS does not suffer from this problem and it seems that is already being used in other Makefiles. This patch removes OTHERLIBS entirely from the build system. * Makeconf: Remove references to OTHERLIBS * auth/Makefile: Replace OTHERLIBS with LDLIBS. * boot/Makefile: Likewise. * console/Makefile: Likewise. * exec/Makefile: Likewise. * ext2fs/Makefile: Likewise. * fatfs/Makefile: Likewise. * ftpfs/Makefile: Likewise. * hostmux/Makefile: Likewise. * isofs/Makefile: Likewise. * libhurd-slab/Makefile: Likewise. * nfs/Makefile: Likewise. * nfsd/Makefile: Likewise. * pfinet/Makefile: Likewise. * proc/Makefile: Likewise. * procfs/Makefile: Likewise. * random/Makefile: Likewise. * storeio/Makefile: Likewise. * term/Makefile: Likewise. * tmpfs/Makefile: Likewise. * usermux/Makefile: Likewise.
* fix compiler warnings in hurd/procfsFlavio Cruz2015-12-292-7/+7
| | | | | | | | procfs: Fix compiler warnings. * include/sys/procfs.h: Change uintptr_t to vm_address_t. * procfs/process.c: Fix format strings. * procfs/rootdir.c: Add missing casts.
* Make procfs accept none or proc as "device"Samuel Thibault2015-09-081-0/+6
| | | | | | | This allows "mount none /proc -t proc" to work. * procfs/main.c (argp_parser): On ARGP_KEY_ARG, accept and ignore "none" and "proc".
* procfs: fix runtime option parsingJustus Winter2015-04-071-1/+1
| | | | | * procfs/main.c (netfs_runtime_argp): Actually use the runtime option parser.
* procfs: fix argument parsingJustus Winter2015-04-071-3/+3
| | | | * procfs/main.c (argp_parser): Fix argument parsing.
* procfs: Fix typos in comments (found by codespell)Stefan Weil2015-01-034-5/+5
| | | | Signed-off-by: Stefan Weil <sw@weilnetz.de>
* Revert "Make sure to free content dir in procfs"Samuel Thibault2014-12-261-8/+1
| | | | This reverts commit 5fe615a4d66f4dea48812ed9e4f250010a8f9298.
* Make sure to free content dir in procfsLancelot SIX2014-12-261-1/+8
| | | | | In procfs/netfs.c:netfs_get_dirents, make sure to free the memory allocated with the "get_contents" callback of nodes.
* Fix coding styleSamuel Thibault2014-12-061-1/+1
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* procfs: do not hard-code the default argument valuesJustus Winter2014-11-211-3/+3
| | | | | * procfs/main.c (common_options): If possible, do not hard-code the default values.
* Add proc_set_init_task, make runsystem pid 1Justus Winter2014-11-211-2/+7
| | | | | | | | | | | | | | | | | * hurd/process.defs (proc_set_init_task): New procedure. * hurd/process_reply.defs (proc_set_init_task): Likewise. * hurd/process_request.defs (proc_set_init_task): Likewise. * include/pids.h: Add HURD_PID_INIT as 1, adjust others accordingly. * init/init.c (start_child): Register the child task. * proc/proc.h (init_proc): New variable. (create_startup_proc): Rename to create_init_proc. * proc/main.c (main): Create placeholder proc object for pid 1. * proc/mgt.c: Use init_proc instead of startup_proc, as the former is the new root of the process tree. (create_startup_proc): Rename to create_init_proc. (S_proc_set_init_task): New function. * doc/hurd.texi (Server Bootstrap): Update accordingly. * procfs/main.c: Do not hard-code kernel pid, use pids.h instead.
* Make procfs appear in /proc/mountsSamuel Thibault2014-11-111-0/+12
| | | | | | d-i needs to be able to check whether /proc is mounted or not. * procfs/main.c (netfs_get_source): New function.
* procfs: reorganize rootdir.cJustus Winter2014-09-291-76/+77
| | | | | * procfs/rootdir.c: Move the translator linkage code to the appropriate location.
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