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* Signal-based file switching support for old relayMasami Hiramatsu2009-09-161-14/+68
| | | | | | | | | | | * runtime/staprun/relay_old.c (switch_oldoutfile): New function for file switching. (process_subbufs): Use switch_oldoutfile. (reader_thread): Use ppoll() instead of poll() for receiving SIGUSR2 and switch output file when receiving a signal(SIGUSR2). (switchfile_handler): Send SIGUSR2 signal to reader threads for file switching. (init_oldrelayfs): Assign switchfile_handler to SIGUSR2.
* Signal-based file switching support for relay/ring buffer.Masami Hiramatsu2009-09-161-22/+61
| | | | | | | | | | * runtime/staprun/relay.c (switch_outfile): New function for file switching. (reader_thread): Don't assign empty_handler to SIGUSR2, and switch output file when receiving signal(SIGUSR2) on ppoll. (switchfile_handler): Send SIGUSR2 signal to reader threads for file switching. (init_relayfs): Assign switchfile_handler to SIGUSR2. * staprun.1.in: Add FILE SWITCHING BY SIGNAL section.
* Fix relay_old implementation of fsize_max and fnum_max.Masami Hiramatsu2009-09-091-2/+4
| | | | | | | | | | | | | | With old relayfs, out_fd is used only when non-bulk mode. However, open_oldoutfile and open_relayfs_files open files with fopen and set only percpu_tmpfile. This will cause a problem with -S option, that out_fd will be closed when the file size reaches fsize_max and new fd will be opened only on percpu_tmpfile. So, out_fd should be synchronized with percpu_tmpfile. * runtime/staprun/relay_old.c (open_oldoutfile): Set fd of output file to out_fd[cpu]. (open_relayfs_files): Ditto.
* rc = 0 should be return 0 for database not ownder by root.Dave Brolley2009-09-041-1/+1
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* Allow process begin/end probes for unprivileged users.Dave Brolley2009-09-031-9/+1
| | | | | | | | | | | | | | | | | 2009-09-03 Dave Brolley <brolley@redhat.com> * tapsets.cxx (visit_cast_op): Don't disallow unprivileged users. Annotate synthesized function with /* unprivileged */. * tapset-utrace.cxx (register_tapset_utrace): Call allow_unprivileged for process begin and end probes. * translate.cxx (translate_pass): Generate '#define STP_PRIVILEGED 1' unless --unprivileged was specified. * runtime/transport/transport.c: Don't define _stp_unprivileged_user. * runtime/task_finder.c (__stp_utrace_attach_match_filename): Check that _stp_uid equals the task euid when STP_PRIVILEGED is not defined. (stap_start_task_finder): Likewise. * runtime/staprun/staprun.c (insert_stap_module): Don't generate module option _stp_unprivileged_user.
* Add 'unused' attribute to module_data and module_size arguments of ↵Dave Brolley2009-08-111-2/+4
| | | | check_permissions.
* PR10506 experiment: use /sbin/insmod for uprobes.ko loadingFrank Ch. Eigler2009-08-101-2/+7
| | | | * runtime/staprun/staprun.c (enable_uprobes): insmod, not insert_module().
* It is not an error or warning if the local database of authorized signingDave Brolley2009-08-101-0/+5
| | | | certificates does not exist. It just means that the signed module is untrusted.
* 2009-08-06 Dave Brolley <brolley@redhat.com>Dave Brolley2009-08-065-143/+118
| | | | | | | | | | | | | | | | | | | * modverify.c (staprun.h): #include it. (verify_it): Now accepts module data and signature data as arguments. Don't open and read the signature here. Don't read the module here. (verify_module): Now accepts module data as argument. Read the signature once here. * modverify.h (verify_module): Now accepts module data as argument. * staprun.c (main): Don't call check_permissions here. * staprun.h (check_permissions): Prototype removed. * staprun_funcs.c (check_permissions): Now static. Accepts module data as argument. Pass module data to check_signature. (insert_module): Canonicalize the module path early here. Call check_permissions here, passing it the mapped module data. (check_signature): Now accepts module data as argument. Pass the module data to verify_module. (check_path): Use the already-canonicalized module path.
* Fix compile error when not HAVE_NSS with staprun.Maran2009-08-051-1/+1
| | | | | | | * runtime/staprun/staprun_funcs.c (check_permissions): Declare check_signature_rc outside HAVE_NSS block. Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-08-045-0/+7
|\ | | | | | | | | | | Conflicts: cache.cxx
| * PR10204: Place userspace markers in systemtap itselfKent Sebastian2009-07-315-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | * cache.cxx (add_to_cache,clean_cache): add static markers * main.cxx (main): likewise * runtime/staprun/common.c (send_request): likewise * runtime/staprun/mainloop.c (stp_main_loop): likewise * runtime/staprun/staprun.c (remove_module): likewise * runtime/staprun/staprun.h: include sdt.h * runtime/staprun/staprun_funcs.c (insert_module): likewise * util.cxx (stap_system): likewise * tapset/stap_staticmarkers.stp: new file
* | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-06-225-38/+46
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| * Fix on-file flight recorder mode bugs on old kernel.Masami Hiramatsu2009-06-194-35/+42
| | | | | | | | | | | | | | | | * runtime/staprun/common.c (make_outfile_name): Moved from relay.c, fix not to open /dev/null.XXX output files, and add 'bulk' argument for bulkmode. * runtime/staprun/relay.c (make_outfile_name): Moved to common.c. * runtime/staprun/relay_old.c (open_oldoutfile): Fix to use fopen() and store FILE * to percpu_tmpfile[cpu].
| * Merge commit 'origin/master' into pr7043David Smith2009-06-111-1/+14
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| * \ Merge commit 'origin/master' into pr7043David Smith2009-05-218-100/+999
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: runtime/print.c runtime/transport/transport.c runtime/transport/transport_msgs.h
| * | | Renamed STP_OLD_TRANSPORT to STP_TRANSPORT_VERSION.David Smith2009-04-022-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2009-04-02 David Smith <dsmith@redhat.com> * runtime.h: Defines STP_TRANSPORT_VERSION instead of STP_OLD_TRANSPORT. * staprun/staprun.h (STP_OLD_TRANSPORT): Ditto. * print.c: Changed STP_OLD_TRANSPORT to STP_TRANSPORT_VERSION. * staprun/mainloop.c (stp_main_loop): Ditto. * transport/transport.c: Ditto. * transport/transport.h: Ditto. * transport/transport_msgs.h: Ditto. * transport/utt.h: Ditto.
* | | | Only sign modules if --unprivileged is specified.Dave Brolley2009-06-112-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | Don't generate an error message for unsigned modules. Make sure module signature exists before attempting to copy to the cache. Allow timer p[robes for unprivileged users.
* | | | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-05-221-1/+14
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| * | | Restore staprun's support for REAL_UID/GIDJosh Stone2009-05-221-1/+14
| | |/ | |/| | | | | | | | | | This is needed for run-stap so that stapio and all child processes can run as the originally invoking user instead of root.
* | | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-05-061-1/+1
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| * | Problems using server scripts when not on PATH.Dave Brolley2009-05-061-1/+1
| | | | | | | | | | | | HAVE_NSS related compile time warning.
* | | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-05-052-0/+3
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| * | Add Vim modelines for new C/C++ sourcesJosh Stone2009-05-052-0/+3
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* | | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-05-052-3/+170
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: modsign.cxx runtime/staprun/modverify.c runtime/staprun/staprun_funcs.c stap-authorize-server-cert stap-authorize-signing-cert stap-serverd systemtap.spec
| * | Module signing and verification using a separate file for the module signature.Dave Brolley2009-05-044-69/+532
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* | | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-04-231-105/+7
|\| | | | | | | | | | | | | | | | | Conflicts: Makefile.in
| * | PR 9821: Use genuine strftime in staprun/stapioMasami Hiramatsu2009-04-221-105/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Makefile.am: Add -fno-builtin-strftime to stapio_CFLAGS. * Makefile.in: Ditto. * runtime/staprun/common.c (stap_strfloctime): Use strftime(3). (parse_args): Remove strftime format limitation message. * main.cxx (usage): Ditto. * stap.1.in: Ditto. * staprun.8.in: Ditto.
* | | 2009-04-14 Dave Brolley <brolley@redhat.com>Dave Brolley2009-04-146-32/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * translate.cxx (c_unparser::emit_unprivileged_user_check): Generate code to check _stp_unprivileged_user. * testsuite/lib/systemtap.exp (setup_server): Copy stap-env to $net_path. * runtime/transport/transport.c: Set up _stp_unprivileged_user. * runtime/staprun/staprun_funcs.c (check_signature): Distiguish among verification failure due to errors, tampering, untrusted signer. (check_permissions): Likewise. (check_groups): Set unprivileged_user. * runtime/staprun/staprun.c (insert_stap_module): Set _stp_unprivileged_user. * runtime/staprun/modverify.h (MODULE_OK): #define it. (MODULE_UNTRUSTED,MODULE_CHECK_ERROR,MODULE_ALTERED): Likewise. * runtime/staprun/modverify.c (modverify.h): #include it. (verify_it): Distiguish among verification failure due to errors, tampering, untrusted signer. (verify_module): Likewise. * runtime/staprun/common.c (unprivileged_user): Define it. * runtime/staprun/staprun.h (unprivileged_user): Declare it. * cache.cxx (get_from_cache): Get the module signature file. * stap-authorize-server-cert: Source `dirname $0`/stap-env. * stap-authorize-signing-cert: Likewise. * stap-client: Likewise. * stap-find-or-start-server: Likewise. * stap-find-servers: Likewise. * stap-gen-cert: Likewise. * stap-server: Likewise. * stap-serverd: Likewise. * stap-start-server: Likewise.
* | | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-04-062-10/+25
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| * | PR10032: Trigger cleanup after relay thread errorsJosh Stone2009-04-032-10/+25
| | | | | | | | | | | | | | | | | | When the relay threads encounter an error, they now send SIGTERM to the rest of the process before the thread exit, so we get a clean shutdown. For EPIPE in particular, error messages are also suppressed.
* | | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-04-033-6/+9
|\| | | | | | | | | | | | | | | | | | | | Conflicts: configure runtime/staprun/staprun_funcs.c
| * | Really fix run-stap this time, I promise!Josh Stone2009-04-021-1/+14
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| * | Fix strftime format bugMasami Hiramatsu2009-04-021-3/+6
| | | | | | | | | | | | | | | This fixes bugs in strftime-subset function. This modifies %C, %l and %j to fit the output of date command.
| * | Fix a bug in file size limitation code.Masami Hiramatsu2009-04-022-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a bug in stapio, which checks written data size and switches new file when it exceeds a limit. The problem is that written-data-size counter ignores the first written-data size when switching files. So, actual file size always exceeds the limit. This changes stapio to initialize written-data-size counter with the size of the data which will be written in new file.
* | | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-03-301-1/+4
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: aclocal.m4 configure testsuite/aclocal.m4 Also: 2009-03-30 Dave Brolley <brolley@redhat.com> * nsscommon.c (nssError): Handle SEC_ERROR_BAD_SIGNATURE. 2009-03-30 Dave Brolley <brolley@redhat.com> * modverify.c (verify_it): Print a message if the module may have been tampered with.
* | | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-03-251-0/+9
|\| | | | | | | | | | | | | | | | | Conflicts: Makefile.in
| * | Fix for CVE-2009-0784: stapusr module-path checking raceFrank Ch. Eigler2009-03-251-0/+9
| | | | | | | | | | | | | | | * runtime/staprun/staprun_funcs.c (check_path): Save fully canonicalized and checked module path for later loading.
* | | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-03-235-37/+520
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| * | PR9821: staprun supports subset of strftime.Masami Hiramatsu2009-03-204-32/+232
| | | | | | | | | | | | | | | Add strftime subset format support for output file name to systemtap. This format will be evaluated when opening a new output file.
| * | PR6930: stapio: support file switchingMasami Hiramatsu2009-03-205-17/+195
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add file-switching option(-S size[,N]) to stapio. This option has two arguments, 'size' and 'N', and requires -o option. - When the size of output file exceeds specified 'size'MB, staprun switches output file to the next file. For this purpose, all output file has a serial number as a suffix only when user specifies this option. - Using this option in bulk mode, the output file name will be 'FILE_cpuX.SERIAL'. - When the number of files exceeds specified N, staprun removes the oldest file. This argument can be omitted.
| * | PR6930: stapio: run in background as a daemonMasami Hiramatsu2009-03-203-4/+84
| | | | | | | | | | | | | | | | | | | | | Add '-D'(daemon mode) option to staprun/stapio for daemon mode. In this mode, stapio shows just its pid and detachs from console. Since it has no stdio, this mode requires -o option. stapio will exit when it receives SIGTERM or detects some error.
| * | PR6930: staprun: supports error message to syslogMasami Hiramatsu2009-03-203-8/+33
| | | | | | | | | | | | | | | Add an interface (eprintf) to output error messages to syslogd, because staprun has no stderr after detaching from console.
* | | Merge branch 'master' of git://sources.redhat.com/git/systemtapDave Brolley2009-03-161-0/+8
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| * | PR9947: move runtime cleanup out of the work queueJosh Stone2009-03-131-0/+8
| |/ | | | | | | | | | | | | | | | | | | | | | | The kernel lockdep checking found a possible deadlock if a forced rmmod tried to destroy _stp_work_queue at the same time that the work queue was unregistering tracepoints. An unlikely scenario, but still possible. Now the work queue will just issue a STP_REQUEST_EXIT down to usermode, and usermode will echo back an STP_EXIT that triggers the actual probe cleanup. This way the unregistrations are happening in exactly the same context as the registrations were.
* / 2009-03-12 Dave Brolley <brolley@redhat.com>Dave Brolley2009-03-124-55/+357
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * util.cxx (remove_file_or_dir): New function. * util.h (remove_file_or_dir): New function. * systemtap.spec (stap): Add stap-env, stap-gen-cert, stap-authorize-cert, and stap-authorize-signing-cert. (stap-client): Remove stap-find-or-start-server, stap-add-server-cert. Add stap-authorize-server-cert. (stap-server): Add stap-find-servers, stap-find-or-start-server, stap-authorize-server-cert. Remove stap-gen-server-cert. * stap-find-servers: Source stap-env. Use $stap_avahi_service_tag. (initialization): Set timeout to 10. (find_servers): Run avahi-browse in the background and wait for it. Use a temp file for the output of avahi-browse. Kill avahi-browse if the timeout expires. (match_server): Set read timeout. (fatal): New function. * stap-find-or-start-server: Source stap-env. Use $stap_exec_prefix. Always exit with 0. * stap-start-server: Source stap-env. Check for the server PID as a running process and for avahi-publish-service running as a child in order to verify that the server is ready. * stap-add-server-cert: Renamed to stap-authorize-server-cert. Source stap-env. Call stap-authorize-cert. * stap-client: Source stap-env. Use $stap_user_ssl_db and $stap_root_ssl_db. Use $stap_tmpdir_prefix_client, $stap_tmpdir_prefix_server. Use $stap_exec_prefix. (configuration): Removed. (staprun_running): Removed. (interrupt): Don't kill staprun. * stap-server: Source stap-env. Use $stap_user_ssl_db and $stap_root_ssl_db. Use $stap_tmpdir_prefix_client, $stap_tmpdir_prefix_server. Use $stap_exec_prefix. (configuration): Removed. * session.h (systemtap_session): Add cert_db_path. * runtime/staprun/staprun_funcs.c (config.h): #include it. (modverify.h): #include it. (check_signature): New function. (check_groups): New function extracted from check_permissions. (check_permissions): Call check_groups and check_signature. * runtime/staprun/mainloop.c (cleanup_and_exit): Pass modpath to staprun, not modname. * main.cxx (main): Initialize cert_db_path. Handle LONG_OPT_SIGN_MODULE. Save the module signature if the module was signed and is being saved. (LONG_OPT_SIGN_MODULE): #define it. (long_options): Add --sign-module. * cache.cxx (config.h): #include it. (add_to_cache): Add the module signature file to the cache if the module has been signed. * buildrun.cxx (modsign.h): #include it. (compile_pass): Call sign_module, if requested. * configure.ac: Define HAVE_NSS if NSS libraries are available. * Makefile.am (AM_CPPFLAGS): Add -DSYSCONFDIR. (bin_SCRIPTS): Add stap-env, stap-gen-cert, stap-authorize-cert, stap-authorize-signing-cert, stap-authorize-server-cert. Remove stap-gen-server-cert, stap-add-server-cert. (stap_SOURCES): Add nsscommon.c, modsign.cxx (stap_CPPFLAGS): Add $(nss_CFLAGS), $(nspr_CFLAGS). (stap_LDADD): Add -lnss3. (staprun_SOURCES): Add nsscommon.c. * modsign.cxx: New file. * modsign.h: New file. * nsscommon.c: New file. * nsscommon.h: New file. * runtime/staprun/modverify.c: New file. * runtime/staprun/modverify.h: New file. * stap-authorize-cert: New file. * stap-authorize-signing-cert: New file. * stap-env: New file. * Makefile.in: Regenerated. * aclocal.m4: Regenerated. * config.in: Regenerated. * configure: Regenerated. * doc/Makefile.in: Regenerated. * doc/SystemTap_Tapset_Reference/Makefile.in: Regenerated. * testsuite/Makefile.in: Regenerated. * testsuite/aclocal.m4: Regenerated.
* Kill all ChangeLogsJosh Stone2009-02-191-910/+0
| | | | | | Mark Wielaard, a dear friend of the departed, will be performing a song and dance at the funeral services to commemorate the joyous times that they had together.
* 2009-01-28 David Smith <dsmith@redhat.com>David Smith2009-01-282-0/+53
| | | | | | PR9788 * mainloop.c (cleanup_and_exit): Added workaround for bug 9788 by fork'ing/exec'ing staprun.
* Pick up --prefix dependency usage in config.h.Mark Wielaard2009-01-112-0/+7
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* PR7082: support non-setuid use of $SYSTEMTAP_RUNTIME to find uprobes.koFrank Ch. Eigler2008-12-092-4/+17
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