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Move the procfs translator to its own subdirectory 'procfs'.
This is the last commit to this repository. Development of the procfs
translator will continue in the main Hurd repository.
* procfs/Makefile: Replace the standalone Makefile with the one from
the Debian packaging repository.
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* rootdir.c (rootdir_gc_slabinfo): Do not zero-terminate the generated
content.
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Add a node 'slabinfo' to the root directory that contains information
about the slab allocator used in GNU Mach.
The formatting code has been taken from Richard Braun's standalone
client available here:
git://darnassus.sceen.net/rbraun/slabinfo.git
* rootdir.c (rootdir_gc_slabinfo): New function.
(rootdir_entries): Add node 'slabinfo'.
* Makefile (OBJS): Add mach_debugUser.o.
(rootdir.o): Add an explicit dependency on mach_debug_U.h.
Furthermore, add rules to create both functions.
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The node structure for the `mounts' entry is created and destroyed on
each access, despite the fact a translator is activated on it. Fix the
issue by caching it.
* rootdir.c (rootdir_mounts_node): New variable.
(rootdir_mounts_node_lock): Likewise.
(rootdir_mounts_make_node): New function.
(rootdir_translator_make_node): Remove function.
(rootdir_entries): Replace `rootdir_translator_make_node' with
`rootdir_mounts_make_node'.
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Make mounts a node with a passive translator record so that the mtab
translator is started on access if it is available.
* rootdir.c (MTAB_TRANSLATOR): New macro.
(rootdir_mounts_get_translator): New function.
(rootdir_mounts_exists): New function.
(rootdir_translator_make_node): Likewise.
(rootdir_entries): Add "mounts" node.
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This makes killall5 actually kill any processes not marked as
important.
* process.c (process_file_gc_stat): Fix {start,end}_code.
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Implement our own netfs_append_args function that provides the
appropriate command line flags if the current values differ from the
default values.
* procfs/main.c (netfs_append_args): New function.
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Define a macro for the default value of each command line
parameter. This allows one to generate a minimal response to
fsys_get_options requests.
* procfs/main.c: New macro definitions for default values.
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Split the argument handling into a common part and one for
fsys_update_options. Handle the --update parameter; for procfs this is
a no-op.
* procfs/main.c (common_options): New variable.
(runtime_argp_parser): Handle --update.
(startup_argp): New variable.
(netfs_runtime_argp_): New variable.
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The switch statement was missing the default case returning
ARGP_ERR_UNKNOWN. This patch adds that.
* main.c (argp_parser): Add default case.
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* rootdir.c (rootdir_fakeself_exists): Use the correct arguments for
this kind of function.
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* rootdir.c (rootdir_gc_meminfo): Use unsigned long constant.
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* Makefile (LIBS): Link with libpthread.
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* Makefile [PROFILE] (LIBS): Replace -lthreads with -lpthread
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* 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.
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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.
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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.
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Ignore the --nodev, --noexec and --nosuid arguments.
* procfs/main.c (argp_parser): Ignore some arguments for compatibility.
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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.
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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.
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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.
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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.
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* 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.
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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.
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Makefile (LIBS): Add -lfshelp
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jkoenig/master
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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.
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This branch supersedes the previous one.
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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.
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This reverts commit d9fc76bd4e8c9a459fad7152135b738496318415, as it breaks
/proc/pid/stat
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* process.c (process_lookup_pid): Set PSTAT_NO_MSGPORT flag.
* rootdir.c (get_boottime, get_idletime, rootdir_gc_cmdline): Set
PSTAT_NO_MSGPORT flag.
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* rootdir.c (rootdir_gc_meminfo): Add Buffers and Cached, set to 0.
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* procfs.c (procfs_make_ino): Use 2 rather than 42 as a temporary hack,
since 2 is the root's inode with ext2fs.
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* rootdir.c (get_boottime, get_idletime): replace KERNEL_PID with the
opt_kernel_pid command-line option.
* main.c (argp): Document the change.
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* 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.
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* TODO: Add more entries.
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* rootdir.c: Add page breaks to separate sections and add header
comments for them.
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* rootdir.c (rootdir_gc_meminfo): Add swap information.
* TODO: Update.
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* 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.
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* process.c (process_lookup_pid): Fix leak in error case.
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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.
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* 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.
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* 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.
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* 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.
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* 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.
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* 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.
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* 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.
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* 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.
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* procfs_file.c, procfs_file.h: Remove.
* Makefile: Remove procfs_file.
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