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2013-07-20Add the necessary infrastructure to serve passive translatorsJustus Winter
* netfs.c (netfs_get_translator): New function. * procfs.c (procfs_get_translator): Likewise. * procfs.h (struct procfs_node_ops): New field get_translator. (procfs_get_translator): New function declaration.
2013-07-20Fix default file ownershipJustus Winter
Formerly all nodes were created so that they were owned by root:root by default. This causes problems if the procfs translator is running as unprivileged user and serves passive translator records, because the file ownership is being used as credentials for starting translators. This obviously fails if the procfs translator is not root but is trying to acquire credentials including uid/gid 0. Fix this by using the uid/gid of the procfs translator by default. procfs.c (procfs_make_node): Fix default node ownership.
2013-07-20Fix procfs_node_chmodJustus Winter
Formerly only the mode_t bits cut out by S_IFMT were preserved, but this does not include S_IPTRANS. Fix this by preserving everything but the permission bits. * procfs.c (procfs_node_chmod): Fix bitmask.
2013-07-20procfs: Ignore arguments for compatibility with Linux' procfs.Justus Winter
Ignore the --nodev, --noexec and --nosuid arguments. * procfs/main.c (argp_parser): Ignore some arguments for compatibility.
2013-06-29procfs: enable fsys_set_optionsJustus Winter
Make procfs translators handle fsys_set_options requests by pointing netfs_runtime_argp to our argp struct. * procfs/main.c (netfs_runtime_argp): New variable.
2013-06-29procfs: keep old config values if the parsing failsJustus Winter
Previously if strtol failed the previous configuration value would get overwritten. Prevent this by storing the result in a temporary variable and update the configuration if the argument was parsed correctly and passed the sanity checks. * procfs/main.c (argp_parser): Keep old configuration in case a malformed value is encountered.
2013-06-29procfs: fix the error handling in argp_parserSamuel Thibault
Do not exit using error (1, ..) but gracefully handle the error using argp_error. Also fix a typo ("the a user") while touching these lines. * procfs/main.c (argp_parser): Proper error handling. (argp_parser): Fix typo.
2013-03-02Remove old hack for the "stat" permissionsPino Toscano
7550343b09a94dc1c659ad74dc75b3b77e7ab0bc added a better way to set the permissions of that file, so this old hack is not needed anymore. * process.c (process_lookup_pid): Do not change the mode of ENTRIES[2].hook.
2013-01-12Report VM cache size in meminfoRichard Braun
* rootdir.c: Include <mach/gnumach.h> and <mach/vm_cache_statistics.h>. (rootdir_gc_meminfo): Call vm_cache_statistics and return the VM cache size.
2012-12-06Simple implementation of statfsPino Toscano
Initial implementation of statfs reply, just returning the filesystem type and its id. * netfs.c: Include <sys/statvfs.h> and <unistd.h>. (netfs_attempt_statfs): Implement.
2012-11-27Move procfs to pthreadsRichard Braun
2012-10-19Fix procfs linkCyril Roelandt
Makefile (LIBS): Add -lfshelp
2012-09-11Merge branch 'master' of git.savannah.gnu.org:/srv/git/hurd/procfs into ↵Samuel Thibault
jkoenig/master
2012-09-11PID stat/status: show only the first wordPino Toscano
If a process changed its title to a multiword string, show only the first word of it. * process.c (args_filename_length): New function. (process_file_gc_stat): Use args_filename_length. (process_file_gc_status): Likewise.
2012-07-12Merge jkoenig/master into master.Thomas Schwinge
This branch supersedes the previous one.
2012-01-14PID stat/status: show only the file name of processesPino Toscano
The Linux /proc fs shows only the file name of processes in the `stat' and `status' files of every process directory, so adapt also procfs to show process file names. Add a new `args_filename` function, much similar to GNU's `basename' but returning the original string also when the resulting file name is an empty string. * process.c (args_filename): New function. (process_file_gc_stat): Wrap the `proc_stat_args' result with `args_filename'. (process_file_gc_status): Likewise.
2011-12-27Revert "Do not use msgport information"Samuel Thibault
This reverts commit d9fc76bd4e8c9a459fad7152135b738496318415, as it breaks /proc/pid/stat
2011-12-27Do not use msgport informationSamuel Thibault
* process.c (process_lookup_pid): Set PSTAT_NO_MSGPORT flag. * rootdir.c (get_boottime, get_idletime, rootdir_gc_cmdline): Set PSTAT_NO_MSGPORT flag.
2011-02-22Add Buffers and Cached to /proc/meminfoSamuel Thibault
* rootdir.c (rootdir_gc_meminfo): Add Buffers and Cached, set to 0.
2010-09-14Use 2 instead of 42 as the parent inode numberJeremie Koenig
* procfs.c (procfs_make_ino): Use 2 rather than 42 as a temporary hack, since 2 is the root's inode with ext2fs.
2010-09-14Use the user-provided kernel PID for uptimeJeremie Koenig
* rootdir.c (get_boottime, get_idletime): replace KERNEL_PID with the opt_kernel_pid command-line option. * main.c (argp): Document the change.
2010-09-14Add copyright noticesJeremie Koenig
* dircat.c, dircat.h, main.c, main.h, netfs.c, process.c, process.h, procfs.c, procfs.h, procfs_dir.c, procfs_dir.h, proclist.c, proclist.h, rootdir.c, rootdir.h: Add copyright notices.
2010-08-30Update the to-do list.Jeremie Koenig
* TODO: Add more entries.
2010-08-30Add some comments in rootdir.cJeremie Koenig
* rootdir.c: Add page breaks to separate sections and add header comments for them.
2010-08-30Add swap information to the top-level stat fileJeremie Koenig
* rootdir.c (rootdir_gc_meminfo): Add swap information. * TODO: Update.
2010-08-30Add a PROFILE modeJeremie Koenig
* Makefile: Change FOOFLAGS defaults to appropriate values when $(PROFILE) is defined. * rootdir.c: Add an "exit" file, which causes exit to be called when looked up, so that profiling data can be written to disk.
2010-08-30Fix leak in error caseJeremie Koenig
* process.c (process_lookup_pid): Fix leak in error case.
2010-08-30Refresh nodes when they're read from the start.Jeremie Koenig
This is necessary for top, for instance, which keeps some files open and re-reads them regularly. As an extra bonus we can drop the refresh hack. * procfs.c, procfs.h: Remove the refresh hack. (procfs_refresh): New function, invalidates the cached contents. * netfs.c (netfs_attempt_read, netfs_get_dirents): Call procfs_refresh when the read is from offset 0. * proclist.c (proclist_make_node): Remove the refresh hack. * dircat.c (dircat_make_node): Likewise. (dircat_get_contents): Use procfs_refresh to avoid keeping old data from the component nodes.
2010-08-30Make sure the clock never runs backwards.Jeremie Koenig
* process.c, rootdir.c: When converting timeval structures into seconds or jiffies, make sure that floating point rounding errors don't make the clock the result jump backwards on second boundaries.
2010-08-30Fix the global idle timeJeremie Koenig
* rootdir.c: Replace INIT_PID by KERNEL_PID, for boot time and idle time purposes. (get_idletime): New function, queries the kernel's idle thread. (rootdir_gc_uptime, rootdir_gc_stat): Use the new function and provide the real idle time.
2010-08-30Cleanup pass on process.cJeremie Koenig
* process.c: Reorder some of the code. Improve comments. Jiffies and clock tick are the same thing, right? Replace the stat mode and cleanup hacks by more straightforward solutions.
2010-08-30Revamp procfs_dirJeremie Koenig
* procfs_dir.c, procfs_dir.h: Revamp the interface to make the more complicated use cases somewhat less hackish. * process.c: Update, specify a default make_node function. * rootdir.c: Likewise; make this optional "self" link use case somewhat less hackish.
2010-08-30Improve the interface for dircat_make_nodeJeremie Koenig
* dircat.c, dircat.h (dircat_make_node): Use an explicit array size for DIRS, fail with ENOMEM is any of them is NULL, and release the reference on the non-NULL nodes on any error. * main.c (root_make_node): Use the new interface.
2010-08-30Detect asprintf's ENOMEM in procfs.c rather than everywhereJeremie Koenig
* procfs.h: Make CONTENTS_LEN an ssize_t rather than a size_t, and document the change. * procfs.c (procfs_get_contents): Initialize CONTENTS_LEN to a negative value, and fail with ENOMEM if it's still negative after the callback returns. (everywhere): Update to ssize_t. * dircat.c, netfs.c, process.c, procfs_dir.c, proclist.c, rootdir.c: Update to ssize_t and the new GET_CONTENTS semantics.
2010-08-30Make contents a char* to avoid typecasts all over the placeJeremie Koenig
* procfs.h (procfs_cleanup_contents_with_free, procfs_cleanup_contents_with_vm_deallocate, procfs_get_contents, struct procfs_ops): Change CONTENTS from a void pointer to a char one. * dircat.c, netfs.c, process.c, procfs.c, procfs_dir.c, proclist.c, rootdir.c: Update.
2010-08-30Remove the unused procfs_file moduleJeremie Koenig
* procfs_file.c, procfs_file.h: Remove. * Makefile: Remove procfs_file.
2010-08-30Fix the handling of processes without an ownerJeremie Koenig
* main.c (argp_parser): New option --anonymous-owner. * main.h: Publish it. * process.c (process_lookup_pid): Use it to set the file owner uid of non-owned processes.
2010-08-30Use a global ps_contextJeremie Koenig
* proclist.c, proclist.h (proclist_create_node): Use a ps_context passed by the caller; errors are no longer possible, rename to proclist_make_node and change the signature accordingly. * rootdir.c, rootdir.h (rootdir_create_node): Likewise. * main.c (main): Create the ps_context here and pass it to root_make_node. (root_make_node): Pass it to proclist_make_node and rootdir_make_node.
2010-08-30Add a TODO-listJeremie Koenig
* TODO: New file.
2010-08-30netfs_server_loop never returnsJeremie Koenig
* main.c: Don't call netfs_server_loop repeatedly; it should never return.
2010-08-30Handle errors in mainJeremie Koenig
* main.c (main): Handle errors from argp_parse and root_make_node.
2010-08-30Add a --compatible optionJeremie Koenig
* main.c (argp_parser): Add --compatible, which sets the options required for compatibility with the procps tools.
2010-08-30Add a status file to process directoriesJeremie Koenig
* process.c: Add a status file.
2010-08-30Add statm to process directoriesJeremie Koenig
* process.c: Add the statm file.
2010-08-30Add a global cmdline fileJeremie Koenig
* main.c (argp_parser, main): Add the --kernel-pid option. * main.h: Publish it. * rootdir.c (rootdir_gc_cmdline): New function.
2010-08-30Add meminfo and vmstatJeremie Koenig
* rootdir.c: Add a (non-empty) meminfo and a vmstat file.
2010-08-30Add a fake-self option to control the self symlinkJeremie Koenig
* main.c (argp_parse, main): Add the --fake-self option. * main.h: Publish it. * rootdir.c (rootdir_gc_fakeself, rootdir_entries, rootdir_create_node): Use it.
2010-08-30Add --stat-mode to override the perms for [pid]/statJeremie Koenig
* main.c (argp_parser, main): Add the --stat-mode option. * process.c (process_lookup_pid): Use it.
2010-08-30Add --clk-tck to set the clock unitJeremie Koenig
* main.c (argp_parser, main): Add and parse the --clk-tck option. * main.h: Publish opt_clk_tck. * process.c (sc_tc): Use the user-provided clock frequency. * rootdir.c (rootdir_gc_stat): Likewise.
2010-08-30Play nice with the procps old_Hertz_hackJeremie Koenig
* rootdir.c (rootdir_gc_uptime, rootdir_gc_stat): assume a completely idle rather than completely busy system, so that the idle seconds can be meaningfully divided by the idle jiffies by procps.
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