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2014-12-07pflocal: add payload-aware intrans functionsJustus Winter
* pflocal/mig-mutate.h: Add mutators. * pflocal/mig-decls.c (begin_using_sock_user_payload): New function. (begin_using_addr_payload): Likewise.
2014-12-07pfinet: make the demuxers payload-awareJustus Winter
* pfinet/ethernet.c (ethernet_demuxer): Make the demuxer payload-aware. * pfinet/main.c (pfinet_demuxer): Likewise.
2014-12-07pfinet: add payload-aware intrans functionsJustus Winter
* pfinet/mig-mutate.h: Add mutators. * pfinet/mig-decls.h (begin_using_socket_payload): New function. (begin_using_sockaddr_payload): Likewise.
2014-12-07exec: add payload-aware intrans functionsJustus Winter
* exec/execmutations.h: Add mutators. * exec/mig-decls.h (begin_using_bootinfo_payload): New function.
2014-12-07console-client: make the demuxer payload-awareJustus Winter
* console-client/trans.c (console_demuxer): make the demuxer payload-aware.
2014-12-07console: add a payload-aware intrans functionJustus Winter
* console/priv.h (begin_using_protid_payload): New function. * console/mutations.h: Add mutators.
2014-12-07auth: add a payload-aware intrans functionJustus Winter
* auth/mig-mutate.h: Add mutator. * auth/mig-decls.h (auth_payload_to_handle): New function.
2014-12-07libcons: add a payload-aware intrans functionJustus Winter
* libcons/mutations.h: Add mutator. * libcons/priv.h (begin_using_notify_payload): New function.
2014-12-07libpager: add a payload-aware intrans functionJustus Winter
* libpager/mig-decls.h (begin_using_pager_payload): New function. * libpager/mig-mutate.h: Add mutators.
2014-12-07libtrivfs: add payload-aware intrans functionsJustus Winter
* libtrivfs/mig-decls.h (trivfs_begin_using_protid_payload): New function. (trivfs_begin_using_control_payload): Likewise. * libtrivfs/mig-mutate.h: Add mutators.
2014-12-07libnetfs: add a payload-aware intrans functionJustus Winter
* libnetfs/priv.h (begin_using_protid_payload): New function. * libnetfs/mutations.h: Add mutator.
2014-12-07libdiskfs: add payload-aware intrans functionsJustus Winter
* libdiskfs/diskfs.h (diskfs_begin_using_protid_payload): New function. (diskfs_begin_using_control_payload): Likewise. (diskfs_begin_using_bootinfo_payload): Likewise. * libdiskfs/fsmutations.h: Add mutators.
2014-12-07libports: add a payload-aware intrans functionJustus Winter
* libports/mig-decls.h (begin_using_port_info_payload): New function. * libports/mig-mutate.h: Add mutator.
2014-12-07libports: add `ports_lookup_payload' and `ports_payload_get_name'Justus Winter
These two functions map payloads to objects and port names. The former can be used like `ports_lookup_port' to look up objects, the latter to map payloads to port names if the server function expects a `mach_port_t'. * libports/ports.h: Add function ports_payload_get_name. * libports/lookup-payload.c: New file. * libports/ports.h (ports_lookup_payload): Add declaration. * libports/Makefile (SRCS): Add lookup-payload.c.
2014-12-06Fix coding styleSamuel Thibault
2014-12-01libshouldbeinlibc: move the reference counting primitives hereJustus Winter
Declare all functions `extern inline' instead of `static inline'. This allows us to use them in functions declared as `extern inline'. * libshouldbeinlibc/refcount.h: Move here, and declare all functions `extern inline'. * libshouldbeinlibc/refcount.c: And define the functions here. * libshouldbeinlibc/Makefile: Add `refcount.{c,h}'.
2014-11-28Revert "random: fix a receiver lookup"Justus Winter
This reverts "8927fbd63e29005ddb9b2c2264046089bf669857". The change mistakenly adds mutators for the `startup' protocol, but the server routine is for the `startup_notify' protocol.
2014-11-27Add atomicity support to fshelp_acquire_lockSamuel Thibault
This adds support for the __LOCK_ATOMIC flag which requests atomicity of SH->EX upgrades and EX->SH downgrades. * libfshelp/lock-acquire.c (__LOCK_ATOMIC): New macro (fshelp_acquire_lock): When __LOCK_ATOMIC is set, do not release the lock early, change the lock hold atomically instead. On upgrade to LOCK_EX, prevent new shared locks from being acquired to avoid starvation.
2014-11-27Fix proc crashesSamuel Thibault
* proc/notify.c (do_mach_notify_dead_name): When `pi' is NULL, immediately return EOPNOTSUPP.
2014-11-23libdiskfs: fix fabrication of protidJustus Winter
* libdiskfs/dir-init.c (diskfs_init_dir): Fix fabrication of protid.
2014-11-23libpager: make the request queue more memory-efficientJustus Winter
Previously, `pager_demuxer' allocated a chunk of memory for the response message. But if memory gets scarce, the kernel will issue a large number of paging requests to free up memory. In such a situation, allocating memory is dangerous. Fix this by not allocating space for the response message, rather, use a chunk of the workers stack space. Also, we only handle the `notify' and `memory_object' protocol, which both only contain simple routines, we only need a `mig_response_header_t'. * libpager/demuxer.c (struct request): Remove `inp' and `outp'. (request_inp): New function. (pager_demuxer): Do not allocate memory for the response. (mig_reply_setup): New function. (worker_func): Adjust accordingly.
2014-11-21boot: improve the demuxerJustus Winter
Handle multiple request types as recommended by the Mach Server Writer's Guide section 4, subsection "Handling Multiple Request Types". This avoids initializing the reply message in every X_server function. * boot/boot.c (mig_reply_setup): Provide local version. (request_server): Rename to `boot_demuxer', and improve the dispatch.
2014-11-21boot: implement pseudo-time deviceJustus Winter
* boot/boot.c (pseudo_time): New variable. (main): Allocate port `pseudo_time'. (ds_device_open): Give out `pseudo_time'. (ds_device_map): Emulate Mach-style `Mapped Time'.
2014-11-21boot: support ds_device_get_status with flavor DEV_GET_RECORDSJustus Winter
* boot/boot.c (ds_device_get_status): Support flavor DEV_GET_RECORDS.
2014-11-21boot: drop obsolete device proceduresJustus Winter
* boot/boot.c (ds_xxx_device_set_status): Remove function. (ds_xxx_device_get_status): Likewise. (ds_xxx_device_set_filter): Likewise.
2014-11-21boot: remove unused function `boot_script_read_file'Justus Winter
The unused function `boot_script_read_file' requires access to the default pager, which is privileged. * boot/boot.c (defpager): Remove now unused variable. (boot_script_read_file): Remove unused function. (main): Do not acquire port to the default pager. * boot/boot_script.h (boot_script_read_file): Remove declaration.
2014-11-21boot: drop bootstrap compat codeJustus Winter
GNU Mach never sent old-style bootstrap messages. Drop the unused compatibility code. * boot/boot.c (request_server): Drop unused code. (bootstrap_compat): Drop unused function.
2014-11-21startup: also open `console' for readingJustus Winter
* startup/startup.c (main): Also open `console' for reading.
2014-11-21proc: gracefully handle failure to increase priorityJustus Winter
* proc/main.c (increase_priority): New function. (main): Move code increasing the proc servers priority to a new function and handle errors gracefully.
2014-11-21Makeconf: handle the gnumach protocolJustus Winter
* Makeconf (mach_defs_names): Add `gnumach'.
2014-11-21startup: bind the startup server to /servers/startupJustus Winter
Previously, the Hurd (ab)used the fact that the startup server speaks all protocols on its message port. Any server that wished to register for shutdown notifications would use proc_getmsgport to get a port to the startup server. This hardcodes the PID of /hurd/startup, and does not allow one to point a server to ones own startup server (e.g. using remap). Bind the startup server to /servers/startup instead. Use this to contact the startup server. * exec/main.c (S_exec_init): Use /servers/startup. Fall back to the old method so that the system still boots when the node /servers/startup is missing. * hurd/paths.h (_SERVERS_STARTUP): New macro. * libdiskfs/boot-start.c (diskfs_S_fsys_init): Use /servers/startup. * libdiskfs/init-startup.c (_diskfs_init_completed): Likewise. * pfinet/main.c (arrange_shutdown_notification): Likewise. * startup/Makefile (OBJS): Add fsysServer.o. * startup/startup.c (demuxer): Handle the fsys protocol. (main): Bind to /servers/startup. (S_fsys_getroot): Implement fsys_getroot. Stub out the rest.
2014-11-21startup: fix the declaration of the *_server functionsJustus Winter
* startup/startup.c (demuxer): Fix the declaration of the server functions.
2014-11-21startup: be more specific in the shutdown messageJustus Winter
Use the BOOT macro to print either halt or reboot instead of the generic shutdown in the event of an system shutdown. * startup/startup.c (reboot_system): Use more specific message.
2014-11-21startup: do not pass signals on to the childJustus Winter
Formerly /hurd/startup would forward all signals to the child it started (e.g. /libexec/runsystem). The motivation for doing so is not revealed in the comments, nor it is mentioned in the history of the version control system. This patch removes the forwarding of signals to the child. * startup/startup.c (process_signal): Do not pass signals on to the child. * startup/stubs.c: Remove file. * startup/Makefile: Remove stubs.c.
2014-11-21init: add a minimalist init programJustus Winter
This patch adds a minimalist init program. It is somewhat lacking in features, but is able to bring up a Hurd system with the runsystem and rc scripts. In fact, it roughly does what the former /hurd/init did, modulo all the very early bootstrapping stuff and the startup protocol. It is started when all the essential servers are up and running, so it can make use of most of the POSIX goodies, making its implementation much simpler. * Makefile (prog-subdirs): Add init. * daemons/runsystem.sh: Generalize runsystem so that it can start any init as specified on the kernel command line. By default, it starts /hurd/init. * daemons/runsystem.hurd: This is a verbatim copy of runsystem.sh. It is started by /hurd/init. * daemons/rc.sh: Do not start /hurd/mach-defpager as it is already started in runsystem.sh. * daemons/Makefile (SRCS): Add runsystem.hurd. * init/Makefile: New file. * init/init.c: Likewise.
2014-11-21startup: rename /hurd/init to /hurd/startupJustus Winter
This patch series splits /hurd/init into two programs. As a first step, this patch renames /hurd/init to /hurd/startup. It is called startup because it speaks the startup protocol. * startup: Rename init to startup. Adjust accordingly. * Makefile (prog-subdirs): Likewise. * doc/hurd.texi (Server Bootstrap): Likewise. * hurd/paths.h (_HURD_STARTUP): Likewise. * libdiskfs/boot-start.c (diskfs_boot_init_program): Likewise. * libdiskfs/opts-std-startup.c (startup_options): Likewise.
2014-11-21procfs: do not hard-code the default argument valuesJustus Winter
* procfs/main.c (common_options): If possible, do not hard-code the default values.
2014-11-21Add proc_set_init_task, make runsystem pid 1Justus Winter
* 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.
2014-11-21trans/mtab: avoid firmlink loopsJustus Winter
* trans/mtab.c (struct mtab): Add a hash table to keep track of seen ports. (mtab_mark_as_seen): New function that records the identity port of a given node in the hash table and reports whether it has been there before. (mtab_populate): Use the new function to avoid running in circles. (main, open_hook): Initialize hash table. (close_hook): Free ports and destroy hash table.
2014-11-21Always canonicalize fstab entries with realpathSamuel Thibault
To avoid spurious ./, /, symlinks, etc. * sutils/fstab.c (fs_set_mntent): Try to call realpath on mnt_fsname and mnt_dir field of `mntent'. (fstab_find_mount): Try to call realpath on `name' parameter. (fstab_find): Do not try to call realpath. (fstab_read): Reset errno to zero before calling getmntent. * utils/umount.c (main): Do not warn about missing fstab entries for active translators.
2014-11-21Fix compiler warningSamuel Thibault
* libnetfs/dir-lookup.c (netfs_S_dir_lookup): Initialize register_translator to 0, otherwise it may be used uninitialized in case of non-ENOENT errors.
2014-11-21Fix recording complete path of passive relative translatorsSamuel Thibault
* libnetfs/dir-lookup.c (netfs_S_dir_lookup): Prepend current path to the relative path before recording the active translator.
2014-11-21Fix recording complete path of passive relative translatorsSamuel Thibault
* libdiskfs/dir-lookup.c (diskfs_S_dir_lookup): Prepend current path to the relative path before recording the active translator.
2014-11-21Let pty readers always read end of writer outputSamuel Thibault
* term/ptyio.c (pty_io_read): Do not return EIO when there is no writer any more but some output remains in the pipe.
2014-11-12utils/rpctrace: fix crash while printing messagesJustus Winter
% fakeroot rpctrace install [...] 63<--66(pid5363)->io_read (-1 8192) = 0 [... rpctrace crashes] /bin/fakeauth: Segmentation fault for child 5362 /bin/settrans: Error 139 for child 5361 * utils/rpctrace.c (print_data): Fix this by guarding the code escaping non-printable characters introduced in 84932431 against `data' being NULL.
2014-11-11Make procfs appear in /proc/mountsSamuel Thibault
d-i needs to be able to check whether /proc is mounted or not. * procfs/main.c (netfs_get_source): New function.
2014-11-10Fix mach-defpager's kalloc valuesSamuel Thibault
* mach-defpager/kalloc.c (MINSIZE): Set to sizeof(vm_offset_t) instead of hardcoded 4. (kalloc_init): Set kalloc_max to MINSIZE << (KLIST_MAX-1) instead of hardcoded 16384. (kalloc, kfree): Use the cache for the maximum size too.
2014-11-10Avoid hitting VM_MAX_ADDRESSSamuel Thibault
* libpager/pager-memcpy.c (pager_memcpy): Reset address passed to vm_map on each loop, to avoid potentially monotonically increasing up to VM_MAX_ADDRESS.
2014-11-09Deal with odd kernel behaviorSamuel Thibault
Some versions of gnumach actually take address as a mapping hint, and would fail if the hint is bogus. Make sure to pass 0 for those versions. * libstore/memobj.c (memobj_read): Make sure to set *buf to 0 before calling vm_map.
2014-11-09Deal with odd kernel behaviorSamuel Thibault
Some versions of gnumach actually take address as a mapping hint, and would fail if the hint is bogus. Make sure to pass 0 for those versions. * console/pager.c (user_pager_create): Make sure to set *user to 0 before calling vm_map. * libdiskfs/disk-pager.c (diskfs_start_disk_pager): Make sure to set *image to 0 before calling vm_map. * libpager/pager-memcpy.c (pager_memcpy): Set window to 0 before calling vm_map. * tmpfs/node.c (diskfs_get_filemap): Make sure to set np->dn->u.reg.memref to 0 before calling vm_map.
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