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* Make fakeroot forward send errors instead of crashingSamuel Thibault2016-02-151-3/+5
| | | | | * trans/fakeroot.c (netfs_demuxer): When forwarding an unknown request fail, forward the error instead of crashing.
* Fix hang on reauthenticationSamuel Thibault2016-02-141-1/+1
| | | | | | | | | One needs to keep the port being reauthenticated alive until we are sure the server has complete authentication. * libfshelp/fetch-root.c (fshelp_fetch_root): Deallocate `port' after auth_user_authenticate has completed. * trans/fakeroot.c (netfs_S_dir_lookup): Likewise with `file'.
* Use DEVICE_IMPORTS to include libports/ports.hFlavio Cruz2015-12-311-1/+3
| | | | | | | | | | | | | | | | | | | | | | On Thu, Dec 31, 2015 at 04:28:14PM +0100, Justus Winter wrote: > Quoting Samuel Thibault (2015-12-31 16:11:30) > > Flavio Cruz, on Thu 31 Dec 2015 15:56:31 +0100, wrote: > > > This fixes three compiler warnings about ports_payload_get_name. > > > > > > * devnode/Makefile: Define DEVICE_IMPORTS. > > > * term/Makefile: Likewise. > > > * trans/Makefile: Likewise. > > > > Why not adding them to the corresponding mig-mutate.h? > > Sometimes we don't have a mig-mutate.h, e.g. for most (all?) > translators in trans/. I prefer stuffing that in a .h as well, but I > wouldn't be opposed to just applying the patch, as we use both ways of > mutating the mig types. Agreed. I think only devnode should include it in mig-mutate.h. For term, only some stubs are including mig-mutate.h. For trans, there's no mig-mutate.h at all. Here's the modified patch.
* Add missing libraries to fix link errorsFlavio Cruz2015-12-301-12/+11
| | | | | | | | | | | | | | This fixes several linking problems I had in my recent cross-compilation of the Hurd. I added missing static libraries and also organized some of the targets for more concise rules. * console-client/Makefile: Add libiohelp.a and libihash.a. * daemons/Makefile: Add libihash.a and libshouldbeinlibc.a. * devnode/Makefile: Add iohelp and ihash to HURDLIBS. * random/Makefile: Likewise. * trans/Makefile: Reorder targets alphabetically and add libiohelp.a and libihash.a. * utils/Makefile: Add libihash.a.
* fix compiler warnings in hurd/transFlavio Cruz2015-12-292-2/+2
| | | | | | | trans: Fix compiler warnings. * trans/mtab.c (mtab_mark_as_seen): Cast idport to hurd_ihash_value_t. * trans/streamio.c (dev_open): Cast name to char *.
* trans: improve demuxersJustus Winter2015-10-292-8/+21
| | | | | | | | | | | 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. * trans/proxy-defpager.c (proxy_defpager_demuxer): Improve the demuxer function. * trans/streamio.c (demuxer): Likewise.
* Make fakerooted access() return real accessSvante Signell2015-10-201-6/+1
| | | | | | | | Various realworld tests would otherwise think they can write to /, while they actually can't. * trans/fakeroot.c (netfs_report_access): Call file_check_access instead of returning O_RDWR|O_EXEC when faking mode too.
* Make dir_lookup create files with user permissions enabledSamuel Thibault2015-10-121-12/+12
| | | | | | | So we will always be able to re-open them. * trans/fakeroot.c (netfs_S_dir_lookup): Call real_from_fake_mode() on modes before calling the underlying filesystem's dir_lookup.
* trans/proxy-defpager: convert to trivfs dynamic classes and bucketsJustus Winter2015-09-271-3/+10
| | | | | | | | | | | | | | | | | | | | libtrivfs contains two ways of managing more than one port class and bucket. There is the old way of using a statically allocated array with explicit length, and the new way with dynamically allocated vectors. Converting all users to the new way of handling multiple classes and/or buckets, we can simplify the code in libtrivfs. In many cases, the code will be simpler and more expressive for the user. This also fixes a severe bug. As no classes are given to `trivfs_startup', they are created and inserted into the dynamic vector of classes. The helper function `allowed', however, used the first item of the previously used static array, which is NULL. This circumvented the typecheck, allowing the default pager protocol to be spoken over control ports, likely resulting in a crash. * trans/proxy-defpager.c: Convert to dynamic classes and buckets.
* trans/passwd: convert to trivfs dynamic classes and bucketsJustus Winter2015-09-271-21/+27
| | | | | | | | | | | | | | | | | libtrivfs contains two ways of managing more than one port class and bucket. There is the old way of using a statically allocated array with explicit length, and the new way with dynamically allocated vectors. Converting all users to the new way of handling multiple classes and/or buckets, we can simplify the code in libtrivfs. In many cases, the code will be simpler and more expressive for the user. This also fixes a mild bug. The classes and buckets given to `trivfs_startup' end up in the dynamic vectors too, making the object lookup code use the more complicated code path. * trans/password.c: Convert to dynamic classes and buckets.
* trans/new-fifo: convert to trivfs dynamic classes and bucketsJustus Winter2015-09-271-14/+14
| | | | | | | | | | | | | | | | | libtrivfs contains two ways of managing more than one port class and bucket. There is the old way of using a statically allocated array with explicit length, and the new way with dynamically allocated vectors. Converting all users to the new way of handling multiple classes and/or buckets, we can simplify the code in libtrivfs. In many cases, the code will be simpler and more expressive for the user. This also fixes a mild bug. The classes and buckets given to `trivfs_startup' end up in the dynamic vectors too, making the object lookup code use the more complicated code path. * trans/new-fifo.c: Convert to dynamic classes and buckets.
* trans/magic: convert to trivfs dynamic classes and bucketsJustus Winter2015-09-271-5/+11
| | | | | | | | | | | | | | | | | | | libtrivfs contains two ways of managing more than one port class and bucket. There is the old way of using a statically allocated array with explicit length, and the new way with dynamically allocated vectors. Converting all users to the new way of handling multiple classes and/or buckets, we can simplify the code in libtrivfs. In many cases, the code will be simpler and more expressive for the user. This also fixes a severe bug. As no classes are given to `trivfs_startup', they are created and inserted into the dynamic vector of classes. The server function `trivfs_S_fsys_forward', however, used the first item of the previously used static array, which is NULL. This circumvented the typecheck. * trans/magic.c: Convert to dynamic classes and buckets.
* trans/ifsock: convert to trivfs dynamic classes and bucketsJustus Winter2015-09-271-7/+0
| | | | | | | | | | | | | | | | | libtrivfs contains two ways of managing more than one port class and bucket. There is the old way of using a statically allocated array with explicit length, and the new way with dynamically allocated vectors. Converting all users to the new way of handling multiple classes and/or buckets, we can simplify the code in libtrivfs. In many cases, the code will be simpler and more expressive for the user. This also fixes a mild bug. The classes and buckets given to `trivfs_startup' end up in the dynamic vectors too, making the object lookup code use the more complicated code path. * trans/ifsock.c: Convert to dynamic classes and buckets.
* trans/crash: convert to trivfs dynamic classes and bucketsJustus Winter2015-09-271-22/+28
| | | | | | | | | | | | | | | | | libtrivfs contains two ways of managing more than one port class and bucket. There is the old way of using a statically allocated array with explicit length, and the new way with dynamically allocated vectors. Converting all users to the new way of handling multiple classes and/or buckets, we can simplify the code in libtrivfs. In many cases, the code will be simpler and more expressive for the user. This also fixes a mild bug. The classes and buckets given to `trivfs_startup' end up in the dynamic vectors too, making the object lookup code use the more complicated code path. * trans/crash.c: Convert to dynamic classes and buckets.
* Fix opening a fifo with O_RDWRSamuel Thibault2015-09-081-1/+1
| | | | | | | We should not wait for a writer in that case, since that will be ourself. * trans/fifo.c (open_hook): Do not wait for a writer when flags contains O_WRITE.
* Fake full file access only for faked nodesSamuel Thibault2015-08-141-1/+5
| | | | | | | | | Otherwise some scripts may try to modify system files just because they find they seem to be able to. * trans/fakeroot.c (netfs_report_access): When FAKE_MODE is not set on `np', call file_check_access on the underlying node instead of returning O_RDWR|O_EXEC.
* Make fakeroot return file types from underly fsSamuel Thibault2015-08-141-1/+1
| | | | | | | | Fakeroot does not support faking them anyway, and they may change on the underlying fs, e.g. when creating a local socket. * trans/fakeroot.c (netfs_validate_stat): Return S_IFMT part of st_mode as provided by underlying filesystem.
* Cope with scripts which chmod -x directoriesSvante Signell2015-06-171-6/+4
| | | | | | | | As well as other potential mode changes which are indeed supposed to still work as root. * trans/fakeroot.c (netfs_attempt_chmod): Always set S_IRUSR and S_IWUSR in real_mode, and set S_IXUSR also when this is a directory.
* fakeroot: Fix reopening files after a chmodSamuel Thibault2015-05-231-1/+15
| | | | | | | Huge thanks to Svante Signell for having tracked the bug. * trans/fakeroot.c (netfs_attempt_chmod): Make the file_chmod call additionally include the modes from nn->openmodes.
* Make comment clearerSamuel Thibault2015-05-231-2/+2
| | | | | * trans/fakeroot.c (check_openmodes): Make comment clearer about missing new openmodes.
* Make sure to record only RWX open modesSamuel Thibault2015-05-231-1/+6
| | | | | | | | | | Thanks Svante Signell for the investigation and proposed patch. * trans/fakeroot.c (new_node): Assert that `openmodes' includes only O_RDWR|O_EXEC (check_openmodes): Likewise with `newmodes'. (netfs_S_dir_lookup): Keep only O_RDWR|O_EXEC from `flags' when calling new_node.
* Fix creating named sockets inside fakeroot-hurdSvante Signell2015-05-141-0/+14
| | | | * trans/fakeroot.c (netfs_set_translator): New function.
* Fix space styleSamuel Thibault2015-03-051-12/+12
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* fakeroot: Fix initializing default faked field of nodesSamuel Thibault2014-12-101-1/+1
| | | | * trans/fakeroot.c (new_node): Initialize faked field to FAKE_DEFAULT.
* Fix mode of nodes created with mkfileSamuel Thibault2014-12-091-2/+12
| | | | | | | | | Their faked field was not initialized. Thanks a lot to Svante Signell for the investigation * trans/fakeroot.c (new_node): Initialize faked field of nn to 0. (netfs_attempt_mkfile): Call set_default_attributes on newly-allocated node, and if the real mode is not the same as the requested mode, fake the mode.
* trans/symlink: disable default payload to port mappingJustus Winter2014-12-071-0/+4
| | | | | | | | | `fsysServer' is only used by the symlink translator which does not use libports. Therefor, it is not necessary to use the default payload to port translation function. * trans/Makefile (fsys-MIGSFLAGS): Disable the default payload to port translation function.
* trans/streamio: make the translator payload-awareJustus Winter2014-12-071-0/+3
| | | | * trans/Makefile (device_reply-MIGSFLAGS): Define MACH_PAYLOAD_TO_PORT.
* trans/password: add a payload-aware intrans functionJustus Winter2014-12-071-0/+1
| | | | * trans/Makefile (password-MIGSFLAGS): Add mutator.
* trans/ifsock: add a payload-aware intrans functionJustus Winter2014-12-071-0/+1
| | | | * trans/Makefile (ifsock-MIGSFLAGS): Add mutator.
* trans/fakeroot: make the demuxer payload-awareJustus Winter2014-12-071-4/+13
| | | | * trans/fakeroot.c (netfs_demuxer): Make the demuxer payload-aware.
* trans/mtab: avoid firmlink loopsJustus Winter2014-11-211-1/+45
| | | | | | | | | | | * 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.
* trans/hello{,-mt}: properly escape contents in trivfs_append_argsJustus Winter2014-09-052-8/+41
| | | | | | | Fixes https://savannah.gnu.org/bugs/?15806 . * trans/hello-mt.c (trivfs_append_args): Escape contents. * trans/hello.c (trivfs_append_args): Likewise.
* hurd: make memory_object parameter polymorphicJustus Winter2014-09-041-0/+2
| | | | | | | | | | | Make the memory_object parameter of default_pager_object_create polymorphic. This fixes https://savannah.gnu.org/bugs/?26751 . * hurd/default_pager.defs (default_pager_object_create): Make memory_object parameter polymorphic. * mach-defpager/default_pager.c (S_default_pager_object_create): Adjust accordingly. * trans/proxy-defpager.c (S_default_pager_object_create): Likewise.
* trans/mtab: use setnullauth to drop privilegesJustus Winter2014-08-311-13/+2
| | | | * trans/mtab.c (main): Use setnullauth to drop privileges.
* Fix ifsock permission checkSamuel Thibault2014-08-261-1/+1
| | | | | | | | POSIX requires write access to the socket, not read access, to be able to connect to it. * trans/ifsock.c (S_ifsock_getsockaddr): Test for O_WRITE instead of O_READ.
* trans/fakeroot: fix error handlingJustus Winter2014-06-181-0/+1
| | | | | | | | Found using the Clang Static Analyzer. * trans/fakeroot.c (new_node): Do not leak a pointer to freed memory. Store NULL at *np instead. This fixes a node use-after-free in netfs_S_dir_lookup.
* trans/fakeroot: use netfs_node_netnode instead of np->nnJustus Winter2014-05-281-46/+53
| | | | | | | | | | | | | | | | When using fat nodes, expressions of the form E->nn can be rewritten as netfs_node_netnode (E). This is much faster as it only involves a offset calculation. For reference, I used the following semantic patch to create the patch: @@ expression E; @@ - E->nn + netfs_node_netnode (E) * trans/fakeroot.c: Use netfs_node_netnode instead of np->nn.
* trans/fakeroot: use fat nodes to simplify the node cacheJustus Winter2014-05-281-24/+12
| | | | | | | | | | | | | | | | Previously, fakeroot stored netnodes in the hash table. But we are not interested in a cache for netnodes, we need a node cache. So fakeroot kept pointers to the associated node object in each netnode object. Use fat netfs nodes, which combine node and netnode objects. * trans/fakeroot.c (struct netnode): Remove np. (idport_ihash): Fix ihash location pointer offset. (new_node): Allocate fat nodes, store the node pointer in the hash table. (netfs_node_norefs): Adjust accordingly. (netfs_S_dir_lookup): Likewise.
* trans/mtab: fix initializationJustus Winter2014-05-261-1/+1
| | | | * trans/mtab.c (main): Fix initialization of mtab in one-shot mode.
* trans/fakeroot: override fshelp_isownerJustus Winter2014-05-221-0/+10
| | | | | | | | | | | | | | | | | As of recently, fakeroot would fail to create symlinks: % fakeroot-hurd ln -s foo a ln: failed to create symbolic link ‘a’: Operation not permitted Fix this by overriding fshelp_isowner. Various netfs functions will call fshelp_isowner to check whether USER is allowed to do some operation. As fakeroot is not running within the fakeauth'ed environment, USER contains the real user. I have no explanation why this ever worked. * trans/fakeroot.c (fshelp_isowner): New function.
* trans/fakeroot: use C99-style struct initializationJustus Winter2014-05-161-1/+1
| | | | | | * trans/fakeroot.c (main): Use C99-style struct initialization to initialize argp. This avoids a warning about missing field initializers.
* trans/fakeroot: fix comparison between signed and unsignedJustus Winter2014-05-161-2/+2
| | | | | * trans/fakeroot.c (netfs_attempt_chown): Fix comparison between signed and unsigned integer expressions.
* trans/fakeroot: remove spurious semicolonJustus Winter2014-05-161-1/+1
| | | | | | | A spurious semicolon caused a control flow bug in check_openmodes, leading to a port leak. * trans/fakeroot.c (check_openmodes): Remove spurious semicolon.
* build: Remove configure check for libcrypt.Ludovic Courtès2014-04-221-2/+2
| | | | | | | | | | | GNU libc has provided the 'crypt' function in libcrypt for a long time, making this check unnecessary. * configure.ac: Remove libcrypt check and 'LIBCRYPT' substitution. * config.make.in (LIBCRYPT): Remove. * trans/Makefile (password-LDLIBS): Change $(LIBCRYPT) to -lcrypt. * utils/Makefile (login-LDLIBS, addauth-LDLIBS, setauth-LDLIBS): Likewise.
* Include the MIG-generated server header filesJustus Winter2014-04-1511-6/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables the compiler to check that the server function declarations match MIGs expectations. Fix a few oddities along the way. * console-client/trans.c: Include MIG-generated server header file(s). * console/console.c: Likewise. Also, fix declarations. * console/mutations.h (TIOCTL_IMPORTS): Just use libnetfs/priv.h. * console/priv.h: Delete now unused file. * ext2fs/storeinfo.c: Include MIG-generated server header file(s). * fatfs/inode.c: Likewise. * fatfs/main.c: Likewise. Also, fix declaration. * isofs/inode.c: Likewise. * libdiskfs/boot-start.c: Likewise. * libdiskfs/file-chg.c: Include the correct MIG-generated server header file. * libdiskfs/file-chmod.c: Include MIG-generated server header file(s). * libdiskfs/file-get-fs-opts.c: Likewise. * libdiskfs/init-startup.c: Likewise. * libnetfs/file-get-children.c: Likewise. * libnetfs/file-getcontrol.c: Include the correct MIG-generated server header file. * libnetfs/file-set-translator.c: Include MIG-generated server header file(s). * libnetfs/fsstubs.c: Likewise. * libtrivfs/file-access.c: Likewise. * libtrivfs/file-chauthor.c: Likewise. * libtrivfs/file-chflags.c: Likewise. * libtrivfs/file-chg.c: Likewise. * libtrivfs/file-chmod.c: Likewise. * libtrivfs/file-chown.c: Likewise. * libtrivfs/file-exec.c: Likewise. * libtrivfs/file-get-children.c: Likewise. * libtrivfs/file-get-fs-options.c: Likewise. * libtrivfs/file-get-source.c: Likewise. * libtrivfs/file-get-storage-info.c: Likewise. * libtrivfs/file-get-trans.c: Likewise. * libtrivfs/file-get-transcntl.c: Likewise. * libtrivfs/file-getcontrol.c: Likewise. * libtrivfs/file-getfh.c: Likewise. * libtrivfs/file-getlinknode.c: Likewise. * libtrivfs/file-lock.c: Likewise. * libtrivfs/file-reparent.c: Likewise. * libtrivfs/file-set-size.c: Likewise. * libtrivfs/file-set-trans.c: Likewise. * libtrivfs/file-statfs.c: Likewise. * libtrivfs/file-sync.c: Likewise. * libtrivfs/file-syncfs.c: Likewise. * libtrivfs/file-utimes.c: Likewise. * libtrivfs/fsys-forward.c: Likewise. * libtrivfs/fsys-get-options.c: Likewise. * libtrivfs/fsys-getroot.c: Likewise. * libtrivfs/fsys-goaway.c: Likewise. * libtrivfs/fsys-set-options.c: Likewise. * libtrivfs/fsys-stubs.c: Likewise. * libtrivfs/fsys-syncfs.c: Likewise. * libtrivfs/io-async-icky.c: Likewise. * libtrivfs/io-async.c: Likewise. * libtrivfs/io-duplicate.c: Likewise. * libtrivfs/io-identity.c: Likewise. * libtrivfs/io-map.c: Likewise. * libtrivfs/io-modes-get.c: Likewise. * libtrivfs/io-modes-off.c: Likewise. * libtrivfs/io-modes-on.c: Likewise. * libtrivfs/io-modes-set.c: Likewise. * libtrivfs/io-owner-get.c: Likewise. * libtrivfs/io-owner-mod.c: Likewise. * libtrivfs/io-pathconf.c: Likewise. * libtrivfs/io-read.c: Likewise. * libtrivfs/io-readable.c: Likewise. * libtrivfs/io-reauthenticate.c: Likewise. * libtrivfs/io-restrict-auth.c: Likewise. * libtrivfs/io-revoke.c: Likewise. * libtrivfs/io-seek.c: Likewise. * libtrivfs/io-select.c: Likewise. * libtrivfs/io-stat.c: Likewise. * libtrivfs/io-stubs.c: Likewise. * libtrivfs/io-version.c: Likewise. * libtrivfs/io-write.c: Likewise. * pfinet/tunnel.c: Likewise. * storeio/io.c: Likewise. * storeio/storeio.c: Likewise. * term/users.c: Likewise. * tmpfs/node.c: Likewise. * trans/fakeroot.c: Likewise. Also, include all server headers that provide the X_server_routine functions... (netfs_demuxer): ... that were previously declared here. * trans/fifo.c: Include MIG-generated server header file(s). * trans/firmlink.c: Likewise. * trans/hello-mt.c: Likewise. * trans/hello.c: Likewise. * trans/magic.c: Likewise. * trans/mtab.c: Likewise. * trans/new-fifo.c: Likewise. * trans/null.c: Likewise. * trans/proxy-defpager.c: Likewise. * trans/streamio.c: Likewise. * libdiskfs/fsmutations.h: Qualify the import with the libraries path. Without this change, out-of-tree builds would no longer work. * libnetfs/mutations.h: Likewise. * libtrivfs/mig-mutate.h: Likewise.
* trans/ifsock: fix receiver lookupJustus Winter2014-03-012-5/+9
| | | | | * trans/Makefile: Add ifsock-MIGSFLAGS. * trans/ifsock.c (S_ifsock_getsockaddr): Fix receiver lookup.
* libtrivfs: improve the mig mutator functionsJustus Winter2014-02-251-1/+1
| | | | | | | | | | | | | | | | Previously, the mig mutator functions were in migsupport.c, preventing them from being inlined into the mig-generated server functions. Put them in mig-decls.h instead. Rename mutations.h to mig-mutate.h. This is the naming convention used for pflocal. * libtrivfs/fsmutations.h: Rename to mig-mutate.h, adopt imports. * libtrivfs/Makefile: Adopt accordingly. * libtrivfs/migsupport.c: Rename to mig-decls.h. * libtrivfs/trivfs.h: Move dynamic classes/buckets declarations to mig-decls.h, remove superfluous imports. * exec/execmutations.h: Fix import. * pfinet/mig-mutate.h: Likewise. * trans/Makefile: Likewise.
* New RPCs, fix buildJustus Winter2014-02-251-1/+1
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* trans/mtab: do not map unknown source strings to "none"Justus Winter2014-02-251-1/+1
| | | | | | | | | Previously, map_device_to_path mapped unknown device strings to "none". Return a copy of the original source string instead so that e.g. nfs mount point points are properly handled. * trans/mtab.c (map_device_to_path): Do not map unknown source strings to "none".
* trans/mtab: ignore translators that do not implement file_get_sourceJustus Winter2014-02-251-13/+6
| | | | | | | | | | | | | | Previously, the mtab translator would guess the source of a filesystem translator from its last argument. This made all kinds of non-filesystem translators appear in /proc/mounts, causing severe problems due to umount --all removing vital passive translator records. Fix this by ignoring all translators that do not explicitly implement file_get_source. * trans/mtab.c (mtab_populate): Ignore translators that do not implement file_get_source.
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