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2016-10-27boot: Remove hacks for running boot on UX.unprivileged-subhurds-2016-10-27Justus Winter
* boot/Makefile (COMMON-OBJS): Do not build server stubs for the bootstrap protocol. Remove all UX-related variables and targets. * boot/boot.c: Remove all UX-related definitions and includes. * boot/frank1.ld: Delete file. * boot/frankemul.ld: Likewise. * boot/mach-crt0.c: Likewise. * boot/sigvec.S: Likewise. * boot/syscall.S: Likewise. * boot/ux.c: Likewise. * boot/ux.h: Likewise.
2016-10-27boot: XXX hand out fake host-priv portJustus Winter
* NEWS: Update. * boot/Makefile (MIGSTUBS): Build stubs for the new kernel interfaces. (MIGSFLAGS): Include mutation file. (HURDLIBS): Link against libihash. * boot/boot.c (privileged, want_privileged): New variables. (pseudo_privileged_host_port): New variable. (pseudo_pset, pseudo_kernel): Likewise. (task_notification_port): Likewise. (dead_task_notification_port): Likewise. (boot_demuxer): Handle new protocols. (OPT_PRIVILEGED): New macro. (options): Add flag '--privileged' to enable the old mode. (parse_opt): Handle new flag. (allocate_pseudo_ports): New function. (main): Handle new flag. If not running privileged, allocate more pseudo ports to hand out in place of privileged kernel ports, create a task namespace, and a task that the Subhurd can frob instead of the real kernel task. (do_mach_notify_dead_name): Handle dying tasks. (S_vm_set_default_memory_manager): New function. (S_host_reboot): Likewise. (S_host_processor_set_priv): Likewise. (S_register_new_task_notification): Likewise. (task_ihash_cleanup): Likewise. (task_ihash): New variable. (task_died): New function. (S_mach_notify_new_task): Likewise. (S_processor_set_tasks): Likewise. * boot/mig-decls.h: New file. * boot/mig-mutate.h: Likewise.
2016-10-27boot: restore terminal state on exitJustus Winter
* boot/boot.c (host_exit): Make it a function and restore the terminal state.
2016-10-27proc: XXX fix buildJustus Winter
2016-10-27proc: Fix new task notifications.Justus Winter
* proc/mgt.c (S_mach_notify_new_task): Fix receiver handling, fix port leak. * proc/mig-mutate.h: Mutate the task notification protocol.
2016-10-15boot: Ignore EINTR.Justus Winter
* boot/boot.c (main): Ignore EINTR in the loop processing stdin.
2016-10-15Avoid warnings if increasing a threads priority fails.Justus Winter
* libports/manage-multithread.c (adjust_priorities): Avoid displaying error messages if we do not have the privileged processor set port by treating this error condition like EPERM. * proc/main.c (increase_priority, main): Likewise.
2016-10-15procfs: Gracefully degrade meminfo.Justus Winter
* procfs/rootdir.c (rootdir_gc_meminfo): Just omit the swap information if the default pager is unreachable.
2016-10-10Fix some RPC request headers #ifdef guardsSamuel Thibault
by fixing the subsystem name into containing _request. * hurd/auth_request.defs: Set subsystem name to auth_request. * hurd/io_request.defs: Set subsystem name to io_request. * hurd/process_request.defs: Set subsystem name to process_request.
2016-10-09fshelp: Fix fetching the control port.Justus Winter
* libfshelp/fetch-control.c (fshelp_fetch_control): Check if the control port is still alive, or deallocate the dead name, record the fact in the transbox, and return MACH_PORT_NULL.
2016-10-09console-client: Remove unused variable.Justus Winter
* console-client/trans.c (console_setup_node): Remove 'bootstrap'.
2016-10-09ext2fs: Poison pointers into dereferenced cache pages.Justus Winter
* ext2fs/ext2fs.h (disk_cache_block_deref): Replace with a macro that NULLs the given pointer. (dino_deref): Likewise. * ext2fs/pager.c (disk_cache_block_deref): Rename. * ext2fs/pokel.c (pokel_add): Adapt. (pokel_exec): Likewise.
2016-10-08ext2fs: Rename parameter.Justus Winter
* ext2fs/ext2fs.h (sync_global_pointer): Rename 'bptr' so that it doesn't collide with the macro 'bptr'.
2016-10-05trans/crash: Fix setting core file template at runtime.Justus Winter
* trans/crash.c (corefile_template_lock): New variable. (S_crash_dump_task): Serialize access to 'corefile_template'. (parse_opt): Likewise. Also strdup the template. (trivfs_append_args): Serialize access to 'corefile_template'.
2016-10-05trans/crash: Use empty core file templates to disable the feature.Justus Winter
* trans/crash.c (parse_opt): Use empty core file templates to disable the feature.
2016-10-05Avoid fatal error handling in option parsers.Justus Winter
* trans/crash.c (parse_opt): Avoid 'error' in favor of the appropriate argp error reporting mechanism. * trans/remap.c (parse_opt): Likewise. * utils/msgids.c (parse_opt): Likewise.
2016-10-03ext2fs: Disable option to specify alternate superblock.Justus Winter
* ext2fs/ext2fs.c (options): Disable '--sblock', this has never been implemented. (parse_opt): Likewise.
2016-10-03libdiskfs: Fix short-circuiting translators.Justus Winter
* libdiskfs/file-set-trans.c (diskfs_S_file_set_translator): When setting a short-circuited translator, clear the translator record first. Improve error handling. This notably fixes a crash in ext2fs when setting a symlink on a node with an existing translator record.
2016-09-17fakeroot: set FAKED_MODESamuel Thibault
* utils/fakeroot.sh (FAKED_MODE): Set to unknown-is-root.
2016-09-06random: Hash continuous areas in the csprng pool.Justus Winter
* random/gnupg-random.c (mix_pool): Store the first hash at the end of the pool. -- This fixes a long standing bug (since 1998) in Libgcrypt and GnuPG. An attacker who obtains 580 bytes of the random number from the standard RNG can trivially predict the next 20 bytes of output. The bug was found and reported by Felix Dörre and Vladimir Klebanov, Karlsruhe Institute of Technology. A paper describing the problem in detail will shortly be published. This is a port of c6dbfe89 from the GnuPG classic branch. CVE-id: CVE-2016-6313
2016-09-04Fix patch to runsystem.hurdSamuel Thibault
* init/init.c (main): Run /libexec/runsystem.hurd instead of /etc/hurd/runsystem.hurd.
2016-09-04Fix installing runsystem.hurdSamuel Thibault
* daemons/runsystem.hurd: Rename to daemons/runsystem.hurd.sh * daemons/Makefile (targets): Add runsystem.hurd (special-targets): Likewise. (runsystem.hurd): New rule, simply depends on runsystem.hurd.sh
2016-09-04libfshelp: acquire references to control portsJustus Winter
* libfshelp/translator-list.c (translator_ihash_cleanup): Release reference. (fshelp_set_active_translator): Acquire reference
2016-09-01Fix looping over runsystem possibilitiesSamuel Thibault
* startup/startup.c (launch_something): Always increment TRY even on success, so that if runsystem unexpectedly returns, we get to try a shell instead.
2016-09-01startup: Fix looping over runsystemSamuel Thibault
Thanks Brent W. Baccala for the report. * starpu/startup.c (launch_something): Always increment TRY while looping over runsystem possibilities.
2016-08-31exec: Fix loading binaries without a memory manager objectBrent W. Baccala
Falling back from the io_map method needs to handle the "anywhere" flag too by updating MAPSTART. * exec/exec.c (write_to_task): Turn MAPSTART parameter into a reference to the address. Fix usage accordingly. (load_section): Pass address of MAPSTART to write_to_task so it can update it.
2016-08-30Fix message about not being able to request shutdown notificationSamuel Thibault
It is just a warning, not a fatal error. * libdiskfs/init-startup.c (_diskfs_init_completed): Prefix warning about requesting shutdown nofication with "warning:". * random/random.c (main): Likewise.
2016-08-28Fix exec crash when setexecdata has never been calledSamuel Thibault
or called with a small array. This notably happens when using a sub-exec, see BZ #48919. * exec/hashexec.c (check_hashbang): Check std_nports before accessing std_ports.
2016-08-28typoSamuel Thibault
2016-08-28remap: Refuse non-absolute pathsSamuel Thibault
* trans/remap.c (parse_opt): Error out if some path is not absolute.
2016-08-26Fix loading small pic programsSamuel Thibault
It happens that the link script for ld.so contains a hole, which might thus leave an empty page between the text and the data. When loading a small pic program, its text would then fit in there, and loading the data right after it would fail. We here rather force all pic loads to be mapped contiguously, starting from the place that was allocated for the first pic load. * exec/exec.c (load_section): Return the address of the end of the section. (load): Take the address to be used for loading pic objects as parameter, force pic objects there if it is not zero, and compute and return the address to be used for the next pic object. (do_exec): Pass addresses for pic loads between calls to load().
2016-08-23rpctrace: Print beyond '\0' in MACH_MSG_TYPE_CHAR.Kalle Olavi Niemitalo
This will now display the 'argv: data_t' argument of file_exec as e.g. "who\0am\0i\0" rather than just "who". In contrast, the 'file_name: string_t' argument of dir_lookup will still be truncated at the first null character. The previous implementation might crash if an out-of-line char array exactly fills a page and does not contain any null characters. * utils/rpctrace.c (print_data): On MACH_MSG_TYPE_STRING and MACH_MSG_TYPE_CHAR, check for end of buffer before checking for a null character. On MACH_MSG_TYPE_CHAR only, continue printing past null characters.
2016-08-20mach-defpager: Add missing unlockBrent W. Baccala
* mach-defpager/default_pager.c (destroy_paging_partition): Add missing unlock when destroying partition fails.
2016-08-20mach-defpager: Fix debugging prints formatsBrent W. Baccala
* mach-defpager/default_pager.c (pager_dealloc_page, pager_read_offset, pager_write_offset, default_read, default_write, destroy_paging_partition, seqnos_memory_object_terminate, seqnos_memory_object_data_request, seqnos_memory_object_data_initialize): Fix debugging prints formats.
2016-08-16Drop OTILDE supportSamuel Thibault
It was used long ago, poses problems to readline, and currently conflicts with TAB1 Thanks Kalle Olavi Niemitalo for the report and rationale * term/munge.c (output_character): Do not handle OTILDE. (output_width): Likewise. * term/term.h (OTILDE): Drop macro definition. * term/users.c (open_hook): Do not check OTILDE flag.
2016-08-09trans/crash: core file name templatesJustus Winter
Add an option to specify a template used to construct core file names. This way core files can be collected at a predictable central location. * hurd/crash.defs (crash_dump_task): Return EEXIST if the core file has been written elsewhere. * trans/crash.c (corefile_template): New variable. (template_valid): New function. (template_make_file_name): Likewise. (S_crash_dump_task): Use the template to construct a name, open the file, and write the core dump there instead of the handle provided by the caller. (argp_option): New option. (doc): Document the format. (parse_opt): Handle new option (trivfs_append_args): Likewise.
2016-08-09Support MSG_DONTWAIT in pflocal send/recvChristian Seiler
* pflocal/socket.c (S_socket_send): Also test for MSG_DONTWAIT in `flags' for the `noblock' parameter of pipe_send call. (S_socket_recv): Likewise for pipe_recv call.
2016-08-09sutils: New utility 'bless'.Justus Winter
* sutils/Makefile (progs): Add 'bless'. * sutils/bless.c: New file.
2016-08-08proc: Fix permission check.Justus Winter
* proc/mgt.c (S_proc_mark_important): Fix checking whether the receiver is a child of startup.
2016-08-08startup: Make the kernel a child of startup.Justus Winter
* startup/startup.c (frob_kernel_process): Make the kernel a child of startup, improve error reporting.
2016-08-07libpager: provide 'pager_create_alloc'Justus Winter
Add a variant to 'pager_create' that allocates memory for the user hook next to the pager data increasing locality. * console/pager.c (pager_clear_user_data): Fix type of 'idx', do not free 'upi'. (user_pager_create): Use the new function. * doc/hurd.texi: Document new function. * ext2fs/pager.c (pager_clear_user_data): Don't free 'upi'. (diskfs_get_filemap): Use the new function. * fatfs/pager.c (pager_clear_user_data): Don't free 'upi'. (diskfs_get_filemap): Use the new function. * isofs/pager.c (pager_clear_user_data): Don't free 'upi'. (diskfs_get_filemap): Use the new function. * libpager/pager-create.c (_pager_create): New generic allocation function. (pager_create): Use the new generic function. (pager_create_alloc): New function. * libpager/pager.h (pager_create_alloc): New prototype.
2016-08-07proc: Fix references to the startup server.Justus Winter
* proc/main.c: Fix references to the startup server in code and comments. * proc/mgt.c: Likewise. * proc/msg.c: Likewise. * proc/proc.h: Likewise.
2016-06-14pfinet: fix memory leakRichard Braun
* pfinet/socket-ops.c (S_socket_recv): Unmap data on error.
2016-06-07trans/crash: fix blunderJustus Winter
* trans/crash.c (S_crash_dump_task): Fix error handling.
2016-06-04Do not make io_select return errors on unsupported READ/WRITE modeSamuel Thibault
The descriptor is valid, it is just the mode which is not available. * console-client/kbd-repeat.c (repeater_select): Drop SELECT_URG flag from `type'. Return 0 instead of EINVAL if `type' contains SELECT_WRITE. * console-client/pc-mouse (repeater_select): Likewise. * trans/mtab.c (trivfs_S_io_select): Return 0 instead of EBADF when the openmodes do not match the requested modes in `type'. * trans/new-fifo.c (io_select_common): Likewise. * trans/fifo.c (io_select_common): Likewise. * trans/null.c (trivfs_S_io_select): Likewise. * trans/streamio.c (io_select_common): Likewise.
2016-06-04trans/crash: fix resource leaksJustus Winter
Previously, 'task', 'core_file', and 'ctty_id' were not deallocated if crash was configured to write core files, and 'ctty_id' was leaked if the crashing task was suspended. This lead to resources not being released in the kernel, the filesystem, and the terminal subsystem, and could very well be responsible for making the Debian/Hurd shutdown hang. * trans/crash.c (S_crash_dump_task): Properly deallocate 'task', 'core_file', and 'ctty_id'.
2016-06-03nfs: appease the stricter reference counting mechanismJustus Winter
* nfs/cache.c (netfs_node_norefs): Do not re-acquire a reference to np. This worked previously, but the new reference counting primitives consider this a use after free. A reference is really not necessary here, we are about to deallocate np anyway. Amends 5eef605e.
2016-06-01Fix pipe_send() with no dataRichard Braun
* libpipe/pipe.c (pipe_send): Set value pointed to by amount to 0 if if nothing is written.
2016-05-30Complete allocation hooksSamuel Thibault
* mach-defpager/kalloc.c (realloc_hook, memalign_hook): New functions. (init_hook): Set __realloc_hook to realloc_hook and __memalign_hook to memalign_hook.
2016-05-30Revert "drop the deprecated malloc/free hooks in hurd/mach-defpager"Samuel Thibault
This reverts commit 8c49801c8f7e3f800cabedf8fca8ccec3cf35a22. The malloc hook is needed for calloc.
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