path: root/src/pies.h
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2021-01-06Update copyright yearsSergey Poznyakoff1
2020-12-05Remove the component.facility keyword. Update the docs.Sergey Poznyakoff1
* NEWS: Update. * doc/pies.texi: Update. * src/pies.h (component): Remove the facility field. * src/comp.c: Likewise. * configure.ac: Select interface to use to close fds (imported from mailutils). * lib/closefds.c: New file (imported from mailutils). * lib/Makefile.am: Add closefds.c * lib/libpies.h (pies_close_fds): New proto. * src/pies.c: Use pies_close_fds * src/progman.c: Likewise.
2020-12-04Rewrite stdout/stderr redirectionSergey Poznyakoff1
Instead of spawning a subprocess for each redirection, read the output directly from pipe and send it to syslog using an asynchronous syslog implementation. * src/syslog.c: New file. * src/pies_syslog.h: New file. * src/Makefile.am: Add syslog.c and pies_syslog.h * src/comp.c (component_create): Use pies_log_facility. * src/ctl.c (auth_prog) (prog_serialize): Remove TYPE_REDIRECTOR case * src/diag.c (syslog_printer): Use pies_vsyslog. (syslog_open): Use pies_syslog_open. (syslog_close): Use pies_syslog_close. (diag_setup): Use pies_syslog_open. * src/pies.c (log_facility, log_tag): Remove globals. Use pies_log_facility and pies_log_tag instead. New configuration statement syslog.dev * src/pies.h: Include pies_syslog.h (register_socket,register_program_socket): Additional argument: free_data. * src/prog.h (TYPE_REDIRECTOR): Remove. (prog.v.p.redir): Change data type. (prog.v.r): Remove. * src/progman.c (prog_tag) (destroy_prog) (progman_cleanup): Remove TYPE_REDIRECTOR case (prog_stop_redirectors): Deregister fds (redir_tag,register_redir) (update_redir): Remove. (open_redirector): Rewrite. Set up direct reader from the stream, instead of spawning a subprocess. (prog_start): Change open_redirector actual arguments. * src/socket.c (sockinst): New member: free_data. (register_socket): Initialize the free_data member. (register_program_socket): Likewise.
2020-12-02Improve documentationSergey Poznyakoff1
* doc/pies.texi: Improve documentation of variable expansion and the use of pies in docker entry points. * src/pies.h (vlogmsg): New proto. * src/progman.c (prog_start_prologue): Set ws_error member to ensure errors from ${X:?WORD} construct are properly reported.
2020-12-02New component flag: expandenvSergey Poznyakoff1
* NEWS: Update. * doc/pies.texi: Document the expandenv flag. * src/comp.c (component_finish): Warn if both "shell" and "expandenv" are used together. Expand command to argc/argv only unless the CF_EXPANDENV flag is given. * src/pies.c (str_to_cf): New flag: expandenv * src/pies.h (CF_EXPANDENV): New define. * src/prog.h (struct prog): New member: argv. * src/progman.c (destroy_prog): Free argv. (prog_start_prologue): Expand the command line taking into account the current environment if CF_EXPANDENV flag is given. Otherwise, copy the component argv to the prog. (prog_execute): Use prog->v.p.argv * tests/Makefile.am: Add expandenv.at * tests/testsuite.at: Likewise. * tests/expandenv.at: New file.
2020-10-18Fix cyclic dependecy detection and reporting.Sergey Poznyakoff1
Use modified Floyd-Warshall algorithm for cyclic dependecy detection. The computed next vertex indices are used when reporting the cycles found. This fixes dead loops that occurred in earlier versions when trying to report cycles. One of inputs that caused such behavior is used as a new test in cyclic.at. * src/depmap.c: Rewrite using modified Floyd-Warshall algorithm. (depmap_cycle_detect,depmap_path_free): New functions. * src/comp.c (report_cyclic_dependency): Take struct depmap_path * as argument. (component_build_depmap): Use depmap_cycle_detect to detect cyclic dependencies. (depmap_dump): Special handling for zero-sized depmap. * tests/cyclic.at: Add new test. * src/pies.h (depmap_dim, depmap_free) (depmap_cycle_detect,depmap_path_free): New protos. * NEWS: Document changes.
2020-10-17Update copyright yearsSergey Poznyakoff1
2019-06-24Enable/disable SystemV init code at compile timeSergey Poznyakoff1
* configure.ac: New option --enable-sysvinit. Disable the init code if RUN_LVL is not available. (PIES_SYSVINIT_ENABLED): New configuration define. (PIES_COND_SYSVINIT): New condition Print configuration settings summary. * src/pies.h (is_sysvinit): Check for PIES_SYSVINIT_ENABLED. (SYSVINIT_ACTIVE): New macro. * grecs: Upgrade. * src/Makefile.am: Conditionally link sysvinit-related code. * src/cmdline.opt: Disable the --telinit option if sysvinit support is not available. (parse_options): Use SYSVINIT_ACTIVE in the conditional. * src/comp.c (component_verify): Check if component definition is allowed by the current state of the sysvinit support. * src/ctl.c: Disable the /runlevel entry point if sysvinit support is not compiled. * src/diag.c (stderr_open): Make sure sysvinit-related code is not compiled if the sysvinit support is not available. * src/pies.c (config_syntax_tab): Add entry for CONF_INITTAB only if sysvinit support is available. (_cb_initdefault,_cb_runlevels): Remove. Use cb_initdefault and cb_runlevels instead. (component_keywords): Disable runlevels without sysvinit support. (pies_keywords): Same for initdefault. Use SYSVINIT_ACTIVE to suppress compilation of sysvinit code without sysvinit support. * src/progman.c: Use SYSVINIT_ACTIVE to suppress compilation of sysvinit code without sysvinit support. * src/sysvinit.c (cb_initdefault,cb_runlevels): New functions.
2019-06-02New configuration statement for manipulating the environment.Sergey Poznyakoff1
The "env" statement is now a compound statement. It can contain four substatements: "clear" to clear the environment, "keep" to retain certain variable while clearing it, "set" to set a variable, and "unset" to unset a variable or variables. Both "keep" and "unset" can take globbing pattern as their argument, in which case they affect all variable matching that pattern. The value part in the "set" statement is subject to variable expansion, e.g. set "MANPATH=$MANPATH${MANPATH:+:}/usr/local/man" The support for the old one-line syntax of "env" is retained for backward compatibility. This commit also fixes redirection to a file: new data are appended to the file, instead of overwriting it. * lib/Makefile.am: Add new files. * lib/envop.c: New file. * lib/envop.h: New file. * lib/wildmatch.c: New file. * src/comp.c (component_free): Update. * src/pies.c (argv_free): New function. (parse_legacy_env): New function. (_cb_env): Remove. (cb_env_section_parser): New function. (cb_env_keywords): New keywords for the "env" block statement: clear, keep, set, unset. (component_keywords): New compount statement: env. Old usage retained for backward compatibility. * src/pies.h: Include "envop.h" (component)<env>: Remove. <envop>: New field. * src/prog.h (prog)<env>: New field. * src/progman.c (redirect_to_file): Position to the end of file. (DEBUG_ENVIRON): Remove macro. (debug_environ): New function. (environ_setup): Remove. (prog_sockenv): Use environ_set to modify local copy of environment. (prog_start_prologue): Use environ_create + envop_exec to create and modify the environment. (prog_execute): Set environment to prog-local copy. * tests/.gitignore: Build envtest * tests/Makefile.am: Add new tests. * tests/testsuite.at: Add environment tests. * tests/envop.at: New file. * tests/envtest.c: New file. * tests/env.at: New file. * tests/redirect.at: Check first two lines of the output file.
2019-05-31Provide an option to run commands via sh -cSergey Poznyakoff1
The new flag "shell" instructs pies to run the command marked with it as '/bin/sh -c $command'. Alternative shell can be supplied ising the 'program' statement. This is useful if the command line uses shell-specific features (command or variable expansion, redirection, pipes, etc.) This commit also fixes a bug in the 'env' statement handling: a single argument with embedded whitespaces was undergoing word splitting and thus incorrectly handled as multiple arguments. * NEWS: Document changes. * doc/pies.texi: Likewise. * src/comp.c (component_free): Free command. (component_finish): Split command into argv/argc as directed by the CF_SHELL flag. * src/pies.c (_cb_command): Remove. Functionality moved to component_finish(). (_cb_env): Bugfix. Don't split arguments. * src/pies.h (CF_SHELL): New flag. (component) <command>: New member. * tests/Makefile.am: Add new tests. * tests/testsuite.at: Add new tests. * tests/aux/respawn: Change default timeout to 1 second. * tests/respawn.at: Minor change. * tests/shell.at: New test.
2019-05-24Implement shutdown componentsSergey Poznyakoff1
* src/pies.h: Update comment. * src/progman.c (register_prog0): Register shutdown components in disabled state. (program_shutdown): New function. (progman_stop): Call program_shutdown. * tests/shutdown.at: New test. * tests/Makefile.am: Add new test. * tests/testsuite.at: Likewise. * tests/aux/startup: Rename to tests/aux/touchfile * tests/startup.at: Reflect the change.
2019-05-24Initial implementation of "startup" components.Sergey Poznyakoff1
These are components that are run at program startup. Starting other components is delayed until all startup components terminate. This is similar to SysV "bootwait" components. Upon termination, startup components are removed from the configuration. They are not renewed upon configuratuion reload. * src/comp.c (comp_array_remove): Remove from the depmap as well. (component_ref_decr): Use comp_array_remove for active components and plain component_free for inactive ones. (component_build_depmap): Use comp_array_remove. (component_config_commit): Special handling for pies_comp_startup components. * src/pies.c (modetab): New component modes: "startup" and "shutdown". (main): Run program_init_startup. * src/pies.h (pies_comp_mode): New modes: pies_comp_startup and pies_comp_shutdown. (program_init_startup): New proto. * src/progman.c (progman_waiting_p): Return 1 if a startup component is still running. (program_init_startup): New function. (progman_cleanup): Handle pies_comp_startup termination. * src/socket.c (switch_eids): Avoid unnecessary calls to setegid and seteuid. * tests/atlocal.in (auxdir): New variable. * tests/mailer: Move to tests/aux/ * tests/respawn: Move to tests/aux/ * tests/retcode: Move to tests/aux/ * tests/aux/startup: New auxiliary program. * tests/redirect.at: Start components from $auxdir. * tests/respawn.at: Likewise. * tests/ret-exec.at: Likewise. * tests/ret-notify.at: Likewise. * tests/startup.at: New file. * tests/testsuite.at: Include startup.at * tests/Makefile.am: Add new tests.
2019-05-23Update copyright yearsSergey Poznyakoff1
2019-05-23Revise dependency handling. Correctly display cyclic dependencies.Sergey Poznyakoff1
* src/comp.c (component_log_dep): Remove. (report_cyclic_dependency): New function. (comp_array_remove): New function. (component_build_depmap): Remove erroneous components both from the component table and dependency map. (components_dump_depmap): Avoid trailing whitespace in the output. * src/depmap.c (depmap_clear_all): Remove. (depmap_remove): New function. * src/pies.h (CF_REMOVE): New flag. (depmap_clear_all): Remove prototype. (depmap_remove): New prototype. * tests/Makefile.am: Add new test. * tests/atlocal.in (trimws): New function. * tests/cyclic.at: New test. * tests/testsuite.at: Include new test.
2017-01-02Happy GNU YearSergey Poznyakoff1
2016-07-16Don't concatenate adjacent strings in configuration files.Sergey Poznyakoff1
* grecs: Upgrade. * src/pies.h: Fix include paths. * src/piesctl.c: Likewise. * NEWS: Document changes. * doc/pies.texi: Likewise.
2016-03-06Reimplement the telinit legacy interface.Sergey Poznyakoff1
pies -T is now fully compatible with the legacy telinit command * src/telinit.opt: New file. * src/Makefile.am: Add telinit.opt * src/cmdline.opt (-T): Remove explicit variable. Rest of command line is processed specially. * src/pies.h (telinit): Change prototype. * src/sysvinit.c (telinit): Rewrite. * src/.gitignore: Update. * doc/pies.texi: Document telinit.
2016-02-28Synchronize changes in runlevel with configuration reloadsSergey Poznyakoff1
State transition algorithm used this far could cause spurious component wakeups in some cases. Consider the following scenario: being in runlevel N, the configuration is changed so that a component X is added at runlevel N. Then a change to runlevel N+1 is initiated. What happens then is that X is woken up (still being in runlevel N) and terminated shortly afterwards, upon entering runlevel N+1. To avoid this, configuration must be reloaded after runlevel changes. * src/ctl.c (res_runlevel): Don't initiate ACTION_RELOAD after setting the runlevel. * src/pies.c (main): Begin main event loop with call to pies_pause. * src/pies.h (pies_set_hook): New proto. (inittrans): Remove proto. * src/socket.c (pies_set_hook): New function. (pies_pause): Call pies_pause_hook if defined. * src/sysvinit.c (inittrans): Change to static. If transition was initiated by user (e.g. by invoking telinit), schedule ACTION_RELOAD. (sysvinit_begin): Set inittrans as pies_hook
2016-02-25Implement "telinit environ" ctl commandSergey Poznyakoff1
* src/ctl.c: New endpoint "environ" * src/pies.h (sysvinit_envlocate) (sysvinit_envdelete) (sysvinit_envupdate): New protos. * src/piesctl.c: New subcommand "telinit environ". * src/sysvinit.c (sysvinit_envlocate) (sysvinit_envdelete) (sysvinit_envupdate): New functions. (sysvinit_begin): Create allocated copies of instance and pies_master_argv to avoid them being rewritten by calls to mf_proctitle_format
2016-02-24Remove spurious informational message on startupSergey Poznyakoff1
2016-02-23BugfixesSergey Poznyakoff1
* lib/addrfmt.c: Include limits.h * src/ctl.c (fun_stop,fun_start): Ignore non-component progs. * src/pies.c (request_restart_components): Fix piesctl invocation. * src/pies.h (PIES_CHLD_RESCHEDULE_ALARM): New flag. (progman_wait_until): Remove. (progman_recompute_alarm): New proto. * src/progman.c (recompute_alarm): Remove. All uses raise PIES_CHLD_RESCHEDULE_ALARM instead. (progman_wake_sleeping): Handle status_stopping components independently on their activity flag. (prog_stop_all, progman_wait_until): Remove. (progman_stop): Rewrite using mark+sweep approach.
2016-02-23Improve loggingSergey Poznyakoff1
* po/POTFILES.in: Add missing source files. * grecs: Upgrade. * src/diag.c (pies_diag_printer): New function. (logfuncall): New function. * src/pies.h: Add new prototypes. * src/pies.c (main): Initialize grecs_print_diag_fun * src/acl.c: Uniformly use double-quotes in messages. Use logfuncall where applicable. * src/comp.c: Likewise. * src/ctl.c: Likewise. * src/inetd-bi.c: Likewise. * src/inetd.c: Likewise. * src/limits.c: Likewise. * src/piesctl.c: Likewise. * src/progman.c: Likewise. * src/socket.c: Likewise. * src/sysvinit.c: Likewise.
2016-02-22Get rid of progman_iterate_compSergey Poznyakoff1
* src/inetd-bi.c (tcpmux): Use component_foreach to handle help requests. * src/progman.c (progman_iterate_comp): Removed. * src/pies.h: Likewise.
2016-02-22Provide a default single-user entry in init modeSergey Poznyakoff1
This complements 6aac230c. The entry is created unless a component for runlevel S already exists. * src/comp.c (component_foreach): New function. * src/pies.h: Likewise. * src/sysvinit.c (inittab_parse): Provide default S entry unless one is already defined.
2016-02-21Provide fall-back entry in init modeSergey Poznyakoff1
* src/sysvinit.c (inittab_parse): Provide default entry if inittab cannot be read or if it defined no components. * src/comp.c (component_list_is_empty): New function. * src/pies.c (pies_read_config): Always return 0 in init mode. (main): Use LOG_DAEMON in init mode. * src/pies.h (component_list_is_empty): New proto.
2016-02-20Improve control interfaceSergey Poznyakoff1
This commit implements the following operations on the new /conf endpoints: GET /conf/runtime - List configuration PUT /conf/runtime - Reload configuration POST /conf/runtime - Post new configuration GET /conf/files - List configuration files DELETE /conf/files - Delete some or all configuration files from the list POST /conf/files - Install new configuration file Piesctl supports the following new commands: piesctl config reload piesctl config file clear piesctl config file add SYNTAX NAME piesctl config file del[ete] NAME [NAME...] piesctl config file list * src/ctl.c (res_conf): New function. (restab): New endpoint /conf * src/pies.c (config_file_add): Set free_entry. (config_file_remove, config_file_remove_all) (config_file_list_serialize): New functions. (pies_config_parse): Bail out if tree processing fails. (pies_reload): Remove unused function. (main): Redo ACTION_RELOAD handling. Handle ACTION_COMMIT. * src/pies.h (ACTION_COMMIT): New action. (config_file_remove, config_file_remove_all) (config_file_list_serialize) (pies_read_config, progman_gc): New protos. * src/piesctl.c (cmdline_parser_state): New struct (next_token, peek_token): Take ptr to cmdline_parser_state as argument. (parse_error, require_token, assert_eol) (piesctl_format): New functions. (parse_condition_to_uri): Rewrite using piesctl_format. New subcommand: config. Improve help output.
2016-02-19Revamp program termination after reconfiguring.Sergey Poznyakoff1
* src/pies.h (PIES_CHLD_GC): New op. (progman_stop_tag): Remove proto. * src/pies.c (main): Handle PIES_CHLD_GC: stop all programs marked for termination. * src/comp.c (component_config_commit): Mark leftover components for termination, instead of waiting for them to terminate. * src/sysvinit.c (runlevel_setup_prog): Skip prog if its active status didn't change. Mark inactivated progs for termination. (sysvinit_runlevel_setup): Schedule PIES_CHLD_GC. (inittrans): Don't wait for programs to terminate. That will be done in the main loop. * src/prog.h (prog)<stop>: New boolean member. * src/progman.c (progman_cleanup) (progman_stop_component): Clear the stop flag. (progman_gc): New function. (progman_stop_tag): Remove.
2016-02-18Improve loggingSergey Poznyakoff1
* src/diag.c: Rewrite. (vdiagmsg,diagmsg): New functions. * src/pies.c (main): Set DIAG_REOPEN_LOG for init process. * src/pies.h (DIAG_REOPEN_LOG): New flag (DIAG_TO_MASK,DIAG_ALL): New constants. (diagmsg): New proto. * src/sysvinit.c: Add log messages in important transition points (inittrans): Reinitialize logging to syslog upon transition to normal mode.
2016-02-15Implement emergency shell.Sergey Poznyakoff1
* src/pies.c (main): Move init-specific command line handling to sysvinit_parse_argv. * src/pies.h (dfl_level): Remove extern. (sysvinit_parse_argv): New proto. * src/sysvinit.c (sysvinit_parse_argv): New function. (sysvinit_begin): Start emergency shell, if requested.
2016-02-14Fix handling of wait componentsSergey Poznyakoff1
* src/pies.h (PIES_COMP_WAIT): Remove. (PIES_COMP_MASK): Save one bit. (PIES_CHLD_NONE, PIES_CHLD_CLEANUP) (PIES_CHLD_WAKEUP): New constants. (pies_schedule_children): New proto. (sysvinit_runlevel_setup): Change signature. * src/pies.c (children_cleanup, got_alarm): Merge into single static variable children_op. All uses updated. (pies_schedule_children): New function. (sig_handler): Update (main): Don't call ctl_open for init process. It is done by inittrans after transition from boot to normal state. Update to use pies_schedule_children. * src/prog.h (IS_ACTIVE_COMPONENT): New macro. * src/progman.c (prog_start): Don't modify prog->v.p.wait. (progman_wake_sleeping): Start usual components only after all "wait" components have terminated. (progman_cleanup): If a "wait" component has terminated, request PIES_CHLD_WAKEUP. * src/sysvinit.c (enstate) <wait>: Remove. (enablecomp): Update. (runlevel_setup_prog): Set prog->v.p.wait. (sysvinit_runlevel_setup): Take only one parameter. (inittrans): Remove "wait" and the related mess. Call ctl_open after transition boot -> normal.
2016-02-13Stop disabled components when switching runlevels.Sergey Poznyakoff1
* src/prog.h (status_enabled, status_disabled): Remove. (status_stopped, status_running): New modes. All uses updated. * src/comp.c (component_finish): Disable ondemand component by default. * src/ctl.c (json_object_set_bool): New function. (pies_status_str): Update. (prog_serialize): Set "disabled" attribute. (fun_stop, fun_start): Use CF_DISABLED flag. (res_runlevel): Schedule ACTION_RELOAD. * src/pies.h (json_object_set_bool): New proto. * src/piesctl.c (status_trans): Reflect changes in modes. (print_comp): Check the "disabled" attribute. * src/progman.c (register_prog0) (prog_open_socket,prog_start,prog_stop) (progman_wake_sleeping) (prog_start_prerequisites) (react, progman_cleanup) (progman_stop_component): Update. (no_children_left): Fix. * src/sysvinit.c (enablecomp): Make CF_DISABLED flag persist for ondemand components. (runlevel_setup_prog): Use CF_DISABLED flag. (inittrans): Stop inactivated processes. * doc/pies.texi: Update.
2016-02-13Implement on-demaind components; implement control socket telinit interface.Sergey Poznyakoff1
* src/pies.h: Include json.h (sysvinit_report, sysvinit_set_runlevel) (json_object_set_string, json_object_set_number): New protos. * src/ctl.c (ctlio_resource)<predicate>: New member. (restab): New endpoint: runlevel. Available only if run as pid 1. (find_resource): If predicate is not NULL, call it to confirm that the endpoint is available. * src/piesctl.c: New subcommand "telinit". * src/sysvinit.c (sysvinit_set_runlevel): New function. (sysvinit_fifo_handler): Implement on-demaind components.
2016-02-12Improve progman API (progman_foreach and progman_stop_component).Sergey Poznyakoff1
* src/progman.c (progman_foreach): Allow filter to remove its prog argument from the list. Return integer (result of the call to filter, that returned non-zero). All uses changed. (progman_running_count): Remove. (progman_stop_component): Take a pointer to pointer. Pass it to destroy_prog when needed. All uses changed. * src/comp.c (prog_is_leftover): New function. (cb_terminate_prog): Use prog_is_leftover. Don't raise CF_DISABLED flag, as prog will have been destroyed by progman_stop_component. (cb_kill_prog): Use prog_is_leftover. * src/ctl.c (fun_stop): Check if prog still exists after the call to progman_stop_component. * src/pies.h (progman_running_count): Removed. * src/prog.h (progman_foreach): Return int. (progman_stop_component): Change signature.
2016-01-31Fix runlevel switching; handle powerfail commands.Sergey Poznyakoff1
* src/ctl.c (prog_serialize): List runlevels. * src/pies.c (main): Set got_alarm after reloading configuration. Handle ACTION_POWER. * src/pies.h (ACTION_POWER): New constant. (progman_running_p): Rename to progman_waiting_p. All uses changed. (sysvinit_power): New proto. (POWER_STAT_FILE): New define. (POWER_STAT_FAIL,POWER_STAT_LOW,POWER_STAT_OK): New constants. * src/prog.h (prog) <idx>: Remove. (prog) <wait>: New member. * src/progman.c (prog_lookup_by_idx): Remove. (progman_waiting_p): Return 1 only if there is at least one prog with v.p.wait set. (prog_start): Initialize v.p.wait for sysvinit components. (progman_start): Don't do anything if waiting for components from the previous runlevel. (progman_wake_sleeping): Likewise. (progman_cleanup): Assume expect_term if waiting for components from the previous runlevel. Clear v.p.wait on exited progs. * src/sysvinit.c (sysvinit_fifo_handler): Don't call progman_stop when handling runlevel changes. Handle INIT_CMD_POWERFAIL, INIT_CMD_POWERFAILNOW, and INIT_CMD_POWEROK. (sysvinit_sigtrans): Handle SIGPWR. (is_comp_wait): Rewrite. (power_stat_file): New variable. (sysvinit_power): New function.
2016-01-21Cleanup: redo configuration file handling and dependency tracking.Sergey Poznyakoff1
Implement clean configuration reload on SIGHUP. Use SIGUSR1 to restart the program (previously initiated by SIGHUP). * src/Makefile.am (pies_SOURCES): Add comp.c * src/comp.c: New file. * src/acl.c (pies_acl_free): Don't coredump on NULL arg. (_parse_from): Set cmp function for the sockaddr list. (_acl_common_section_parser): Set cmp function for the ACL (pies_acl_cmp): New function. * src/acl.h (pies_acl_cmp): New proto. * src/cmdline.opt: Remove option --dump-prereq. Add options --trace-prereq and --trace-depend. * src/ctl.c: Use prog_tag to access tag of struct prog. * src/depmap.c (depmap_clear) (depmap_clear_all): New functions. * src/inetd.c (inetd_conf_file): Don't register prog right away. This is done later in component_config_commit. (inetd_parse_conf): Rename to inetd_config_parse. * src/limits.c (limits_cmp): New function. * src/pies.c (config_file): Replace with struct config_syntax. (str_to_config_syntax): Return a pointer to struct config_syntax. (add_config): Rename to config_file_add. (config_file_add_type): New function. (return_code_keywords, create_action): Change handling of actions. (return_code_section_parser): Likewise. (component_verify, component_create) (component_free, component_finish): Move to comp.c (config_parse): Remove. (pies_config_parse): New function. (pies_read_config,pies_reload): New function. (pies_reload): Rename to request_reload. (pies_status): Rename to request_status. (pies_stop): Rename to request_stop. (main): Change configuration file handling. SIGHUP reloads configuration, instead of restarting the program. (default_sigv,sig_handler): Handle SIGUSR1. * src/pies.h (component): New members: prev, next, listidx, arridx, ref_count, prog. Remove act_head, act_tail, act_temp. Add new prototypes. * src/prog.h (prog): Remove tag and prereq. * src/progman.c (prog_tag): New function. (destroy_prog): Update component reference count. (register_redir): Likewise. (register_prog0): Take one argument. Update component reference count. (register_prog): Update comp->prog (prog_rebuild_prerequisites): Remove. (component_fixup_depend): Remove. (fixup_prerequisites,rebuild_prerequisites) (print_dep,progman_dump_prereq) (progman_dump_depmap,progman_build_depmap): Remove. (prog_start_prerequisites): Scan depmap to find prerequisites. (prog_stop_dependents): Likewise. (progman_wait): Remove. (progman_wait_until): New function. (progman_stop): Rewrite using progman_wait_until. (react): Rewrite using grecs_list * src/sysvinit.c: Use prog_tag when needed. * src/userprivs.c (pies_privs_cmp, pies_privs_free): New functions. * grecs: Update. * lib/safe_strcmp.c: New file. * lib/Makefile.am: Add safe_strcmp.c * lib/libpies.h (safe_strcmp): New proto.
2016-01-08Uniformly use grecs memory management functions.Sergey Poznyakoff1
* gnulib.modules: Remove unneded modules. * ident/ident.h: Remove xalloc.h, include errno.h * ident/ident.c: Use standard allocation functions instead of x* * ident/pam.c: Remove. * ident/provider.c: Remove. * ident/system.c: Remove. * src/meta.c: Remove. * src/Makefile.am: Remove meta.c * src/progman.c: Use grecs_* allocation functions instead of x*. (notify): Use wordsplit to expand variables within message. Rename variables: program-name to program_name; canonical-program-name to canonical_program_name. * doc/pies.texi: Update. * src/depmap.c: Use grecs_* allocation functions instead of x*. (depmap_end): New function. * src/diag.c (logmsg_vprintf): Use grecs_txtacc instead of obstack. * src/pies.h (depmap_end): New proto. Remove unused includes. * src/acl.c: Use grecs_* allocation functions instead of x*. * src/ctl.c: Likewise. * src/inetd.c: Likewise. * src/limits.c: Likewise. * src/meta1gram.y: Likewise. * src/meta1lex.l: Likewise. * src/pies.c: Likewise. * src/socket.c: Likewise. * src/sysvinit.c: Likewise. * src/userprivs.c: Likewise.
2016-01-08Enable control socket when run as init process.Sergey Poznyakoff1
* configure.ac (DEFAULT_CONTROL_URL): Rename to DEFAULT_PIES_CONTROL_URL. Change default value. (DEFAULT_INIT_CONTROL_URL): New subst variable. * lib/libpies.h (pies_basic_url_create): New prototype. * lib/url.c (pies_basic_url_create): New function (renamed from pies_url_create). (pies_url_create): Expand variable references in the input string. * src/Makefile.am (AM_CPPFLAGS): Pass DEFAULT_INIT_CONTROL_URL * src/ctl.c (pies_control_url) (ctl_open): Don't exit on errors, return -1 instead. * src/pies.c (default_control_url): New variable. (config_parse): Create default socket url. (pies_control_url): New macro (main): Set environment variable PIES_INSTANCE. Try to open control socket in init process mode as well. * src/pies.h (default_control_url): New extern. (ctl_open): Change prototype. (pies_control_url): Remove. * src/piesctl-cl.opt (parse_options): Set environment variable PIES_INSTANCE. * src/piesctl.c (parse_config): Use pies_url_create and DEFAULT_PIES_CONTROL_URL when falling back to the default socket.
2016-01-05Include argv in the output of ctl id command.Sergey Poznyakoff1
* ctl.c (res_instance): Include "argv" in the return json. Use pies_master_argv[0] to report binary path. * pies.c (pies_master_argv,pies_master_argc): New globals. (main): Initialize them. Refuse to restart unless argv[0] begins with a slash. * pies.h (pies_master_argv,pies_master_argc): New globals. * piesctl.c (com_id): Rewrite output formatting.
2016-01-05Minor changes.Sergey Poznyakoff1
* src/ctl.c (ctlio_authenticate): Configurable realm name. (ctlio_do_command): Check the Accept header. * src/inetd.c (inetd_conf_file): Change line_no type. * src/pies.c (control_keywords): New keyword: realm. * src/pies.h (control) <realm>: New member.
2016-01-03Minor changesSergey Poznyakoff1
* configure.ac: Version 1.2.92 * src/ctl.c (ctlio_finalize_reply): Don't close connection on errors. * src/pies.h (PIES_PRINTFLIKE): New macro. (logmsg, logmsg_printf): Mark as printflike.
2016-01-02Switch to new control interface.Sergey Poznyakoff1
Old control options (--status, --restart-components) rewritten using piesctl. SIGUSR1 and SIGUSR2 no longer handled. * lib/arraymember.c (array_index): New function. * lib/libpies.h: Likewise. * src/cmdline.opt: Fix copyright years. * src/piesctl-cl.opt: Likewise. * src/ctl.c (ctlio_do_command): Implement restart. (pies_control_url): New function. (eval_env): rename json to result. New member cond. Restore pcond_ functions. (json_to_pcond): New function. (res_programs): Conditional selection of programs to list. Implement restart. * src/pies.c (ctlfile, statfile): Remove. (pies_keywords): Mark control-file and stat-file as inactive. (default_sigv): Remove SIGUSR1 and SIGUSR2 (pies_check_status): Don't send SIGUSR2. (stop_components): Remove. (request_restart_components): Rewrite as a wrapper. Call piesctl to do the job. (list_components): New function. * src/pies.h (ACTION_COMPRELOAD) (ACTION_DUMPSTATS): Remove. All callers changed. (progman_dump_stats): Remove. * src/piesctl.c (shttp_request_send): Don't initialize conn->req; the caller is responsible for that. (parse_condition, json_to_string) (parse_condition_to_uri): New functions. (com_list): Read conditional expression from the command line. (com_restart): Implement. * src/progman.c (progman_dump_stats): Remove.
2015-12-31Command-line control interface.Sergey Poznyakoff1
* configure.ac (DEFAULT_CONTROL_URL): New subst variable. * grecs: Upgrade. * ident/pam.c (overwrite_and_free): Free ptr. * lib/Makefile.am: Add new sources. * src/addrfmt.c: Move to lib/addrfmt.c * lib/grecsasrt.c: New file. * lib/grecsasrt.h: New file. * lib/mkfilename.c: New file. * lib/netrc.c: New file. * lib/pp.c: New file. * lib/split3.c: New file. * src/url.c: Move from lib/url.c (pies_url_free_user, pies_url_free_passwd): New finctions. * lib/libpies.h (strsplit3): New proto. (pies_url_create, pies_url_destroy) (pies_url_get_arg, pies_url_copy) (pies_url_free_user, pies_url_free_passwd) (netrc_scan) (pp_add_option, pp_command_line, mkfilename) (sockaddr_to_str, sockaddr_to_astr): New protos * src/Makefile.am (bin_PROGRAMS): New program: piesctl (pies_SOURCES): Remove addrfmt.c and url.c. (noinst_HEADERS, BUILT_SOURCES): Add piesctl-cl.h * src/cmdline.opt: Use pp_* function family to build preprocessor command line. * src/ctl.c (http_header_hash): Use case-insensitive hashing. (ctlio_finalize_reply): Don't close connection after sending 401 response. (input): Remove ws and wsflags. All uses changed. (input_append): Use strsplit3 to parse the request line. * src/pies.c: Use pp_* function family to build preprocessor command line. Move assert_, mkfilename and _cb+_url functions into libpies. * src/pies.h (pies_sockaddr_storage): Move to libpies.h * src/piesctl.c: New file. * src/piesctl-cl.opt: New file.
2015-12-20Bugfixes in init modeSergey Poznyakoff1
* src/ctl.c (ctl_open): Add missing return. * src/pies.c (config_parse): Return if tree is null. (main) [INIT_EMU]: Print more info. Override default init_fifo. Don't use syslog and control socket if running as init process. * src/pies.h (init_fifo): New extern. * src/progman.c (open_redirector): Return -1 if running as init process. (prog_start): Always initialize redir[]. * src/sysvinit.c (init_fifo): New variable. Use it instead if the INIT_FIFO macro. (inittrans): Call create_fifo once, when transiting from boot to normal state.
2015-12-17Implement user privilegesSergey Poznyakoff1
* src/pies.h (component): New members: list_acl and adm_acl. (control): Removed id_acl. New members: adm_acl and usr_acl. * src/pies.c (component_keywords): New keywords list-acl and admin-acl. Removed identity-acl. * ident/ident.c (pies_identity_user_name): New function. * ident/identity.h (pies_identity_user_name): New proto. * src/ctl.c (CTL_USER_STATE,CTL_ADMIN_STATE): New states. (cmdtab): Mark administrative commands as valid in CTL_ADMIN_STATE (ctlio_create): Assume CTL_ADMIN_STATE in the absense of identity providers. (auth_data): New struct. (cmd_auth): Select appropriate state depending on the user permissions. (list_matches): New function. (eval_env): Keep the list of selected progs. (count_prog): Removed. (selector): New function. (cmd_list): Rewrite to take into account access rights. (cmd_start,cmd_stop) (cmd_restart): Only allowed for users with administrative privileges.
2015-12-16Minor fixes.Sergey Poznyakoff1
* grecs: Upgrade. * lib/parsetime.c: Fix senseless compiler warnings. * src/acl.c: Fix docstrings. * src/meta1gram.y (yyerror): Change argument * src/meta1lex.l: Add flex options * src/pies.h (meta1error): Change signature. * src/progman.c (prog_lookup_by_socket): Remove. * src/sysvinit.c (sysvinit_stop_filter): Remove.
2015-12-16Implement authentication on control socket.Sergey Poznyakoff1
* Makefile.am (SUBDIRS): Add src. * configure.ac: Check for crypt.h and PAM Build ident/Makefile * grecs: Update. * ident/Makefile.am: New file. * ident/ident.c: New file. * ident/ident.h: New file. * ident/identity.h: New file. * ident/pam.c: New file. * ident/provider.c: New file. * ident/system.c: New file. * lib/Makefile.am: Add arraymember.c * lib/arraymember.c: New file. * lib/libpies.h (is_array_member): New proto. * src/Makefile.am (LDADD): Add libident.a and @PAM_LIBS@ * src/acl.c (acl_entry): Remove groups. Add new members: names and name_match. (pies_acl_create): Deep copy the locus. Set free_entry function for the list. (pies_acl_free): Free locus. (_parse_from): Set free_entry function for the list. (_parse_group): Parse the "user" construct. (parse_acl_line): Deep copy the locus. Allow for null value. (acl_keywords): Update docstrings. (_acl_check): Rewrite identity checks. * src/acl.h (acl_input)<user,groups>: Remove. <identity>: New member. (pies_acl_free): New proto. * src/ctl.c (identity): New global. (cmdtab): New command: auth (ctlio) <addr,addrlen>: New members. (ctlio_create): Start from authenticated state only if no identity_providers are configured. (cmd_auth): New function. (cmd_help): Print only commands that are available in the current state. (ctl_accept): Initialize io->addr and io->addrlen. * src/inetd-bi.c: Change call to check_acl * src/pies.c: Include identity.h (control_keywords): New statement "identity-acl" (pies_keywords): New statement "identity-provider" (config_init): Register identity mechanisms. (config_parse): New function. (config_help): Print help on identity-provider statements. (main): Use config_parse to parse grecs-style configurations. * src/pies.h: Include identity.h (check_acl): Change argument list. All callers changed. (control): Remove acl. Add conn_acl and id_acl instead. * src/progman.c (check_acl): Change argument list. Take identity as the 3rd argument.
2015-11-05New ctl commands: start, stop, restart, reboot, shutdown.Sergey Poznyakoff1
* src/ctl.c (CTL_ACTION_STATE): New state. (cmdtab): Add new commands: start, stop, restart, reboot, shutdown. (ctlio)<action>: New member. (ctlio_create): Initialize action. (list_prog): List scheduled wakeup time for sleeping components. (cmd_start,cmd_stop) (cmd_restart,cmd_reboot,cmd_shutdown): New functions. (ctlwr): Handle CTL_ACTION_STATE. * src/pies.c (pies_schedule_action): New function. (stop_components): Use progman_stop_tag(). * src/pies.h (pies_schedule_action, progman_stop_tag): New protos. (progman_stop_component): Remove. * src/prog.h (progman_locate, progman_stop_component): New protos. * src/progman.c (progman_locate): New function. (progman_cleanup): Set status depending on the CF_DISABLED bit. (progman_stop_component): Take struct prog* as argument. (progman_stop_tag): New function.
2015-10-31Implement list control command.Sergey Poznyakoff1
* src/ctl.c: Implement list. * src/prog.h (IS_COMPONENT): New macro (from progman.c) * src/progman.c: Move IS_COMPONENT to src/prog.h * src/socket.c (create_socket): Clear uid, gid and umaskval for inet sockets.
2015-10-30Introduce control connection.Sergey Poznyakoff1
* src/ctl.c: New file. * src/Makefile.am (pies_SOURCES): Add ctl.c * src/pies.c: New configuration statement "control" * src/pies.h (instance, ctl_url): New externs. (register_socket): Change signature. (update_socket,ctl_open): New protos. * src/socket.c (listenset): Remove. (fdset): New static. (sockinst)<handler>: Array of three pointers: handlers for read, write, and exception, correspondingly. (find_socket_handler): Remove. (register_socket): Take three function pointers as arguments. Update corresponding elements of fdset. (update_socket): New function. (pies_pause): Handle all three I/O operations. (deregister_socket) (register_program_socket) (disable_socket,enable_socket): Reflect the changes. * src/sysvinit.c (create_fifo): Update call to register_socket.
2015-01-21New component flag: nullinputSergey Poznyakoff1
* NEWS: Update. * doc/pies.texi: Document nullinput flag. * src/pies.c (str_to_cf): New flag: nullinput * src/pies.h (CF_NULLINPUT): New flag. * src/progman.c (prog_start): If CF_NULLINPUT flag is set, redirect /dev/null to the stdin

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