acpid: add config file and map file
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(log yok)
| @@ -18,21 +18,27 @@ | |
| INSERT | |
| #define acpid_trivial_usage \ | |
| - | "[-d] [-c CONFDIR] [-l LOGFILE] [-e PROC_EVENT_FILE] [EVDEV_EVENT_FILE]..." |
| + | "[-d] [-c CONFDIR] [-l LOGFILE] [-a ACTIONFILE] [-M MAPFILE] [-e PROC_EVENT_FILE] [-p PIDFILE]" |
| #define acpid_full_usage "\n\n" \ | |
| "Listen to ACPI events and spawn specific helpers on event arrival\n" \ | |
| "\nOptions:" \ | |
| - | "\n -d Don't daemonize, log to stderr" \ |
| "\n -c DIR Config directory [/etc/acpi]" \ | |
| + | "\n -d Don't daemonize, (implies -f)" \ |
| "\n -e FILE /proc event file [/proc/acpi/event]" \ | |
| - | "\n -l FILE Log file [/var/log/acpid]" \ |
| + | "\n -f Run in foreground" \ |
| + | "\n -l FILE Log file [/var/log/acpid.log]" \ |
| + | "\n -p FILE Pid file [/var/run/acpid.pid]" \ |
| + | "\n -a FILE Action file [/etc/acpid.conf]" \ |
| + | "\n -M FILE Map file [/etc/acpi.map]" \ |
| IF_FEATURE_ACPID_COMPAT( \ | |
| "\n\nAccept and ignore compatibility options -g -m -s -S -v" \ | |
| ) | |
| #define acpid_example_usage \ | |
| + | "Without -e option, acpid uses all /dev/input/event* files\n" \ |
| + | "# acpid\n" \ |
| "# acpid -l /var/log/my-acpi-log\n" \ | |
| - | "# acpid -d /dev/input/event*\n" |
| + | "# acpid -e /proc/acpi/event\n" |
| #define addgroup_trivial_usage \ | |
| "[-g GID] " IF_FEATURE_ADDUSER_TO_GROUP("[USER] ") "GROUP" | |
| @@ -7,27 +7,58 @@ | |
| * Licensed under GPLv2, see file LICENSE in this source tree. | |
| */ | |
| #include "libbb.h" | |
| - | |
| + | #include <syslog.h> |
| #include <linux/input.h> | |
| - | #ifndef EV_SW |
| - | # define EV_SW 0x05 |
| - | #endif |
| - | #ifndef EV_KEY |
| - | # define EV_KEY 0x01 |
| - | #endif |
| - | #ifndef SW_LID |
| - | # define SW_LID 0x00 |
| - | #endif |
| - | #ifndef SW_RFKILL_ALL |
| - | # define SW_RFKILL_ALL 0x03 |
| - | #endif |
| - | #ifndef KEY_POWER |
| - | # define KEY_POWER 116 /* SC System Power Down */ |
| - | #endif |
| - | #ifndef KEY_SLEEP |
| - | # define KEY_SLEEP 142 /* SC System Sleep */ |
| - | #endif |
| + | enum { |
| + | OPT_c = (1 << 0), |
| + | OPT_d = (1 << 1), |
| + | OPT_e = (1 << 2), |
| + | OPT_f = (1 << 3), |
| + | OPT_l = (1 << 4), |
| + | OPT_p = (1 << 5) * ENABLE_FEATURE_PIDFILE, |
| + | OPT_a = (1 << 6), |
| + | OPT_M = (1 << 7), |
| + | }; |
| + | |
| + | struct acpi_event { |
| + | const char *s_type; |
| + | uint16_t n_type; |
| + | const char *s_code; |
| + | uint16_t n_code; |
| + | uint32_t value; |
| + | const char *desc; |
| + | }; |
| + | |
| + | static const struct acpi_event f_evt_tab[] = { |
| + | { "EV_KEY", 0x01, "KEY_POWER", 116, 1, "button/power PWRF 00000080" }, |
| + | { "EV_KEY", 0x01, "KEY_POWER", 116, 1, "button/power PWRB 00000080" }, |
| + | }; |
| + | |
| + | struct acpi_action { |
| + | const char *key; |
| + | const char *action; |
| + | }; |
| + | |
| + | static const struct acpi_action f_act_tab[] = { |
| + | { "PWRF", "PWRF/00000080" }, |
| + | { "LID0", "LID/00000080" }, |
| + | }; |
| + | |
| + | struct globals { |
| + | struct acpi_action *act_tab; |
| + | int n_act; |
| + | struct acpi_event *evt_tab; |
| + | int n_evt; |
| + | } FIX_ALIASING; |
| + | #define G (*ptr_to_globals) |
| + | #define act_tab (G.act_tab) |
| + | #define n_act (G.n_act ) |
| + | #define evt_tab (G.evt_tab) |
| + | #define n_evt (G.n_evt ) |
| + | #define INIT_G() do { \ |
| + | SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \ |
| + | } while (0) |
| /* | |
| * acpid listens to ACPI events coming either in textual form | |
| @@ -48,7 +79,7 @@ static void process_event(const char *event) | |
| const char *args[] = { "run-parts", handler, NULL }; | |
| // debug info | |
| - | if (option_mask32 & 8) { // -d |
| + | if (option_mask32 & OPT_d) { |
| bb_error_msg("%s", event); | |
| } | |
| @@ -60,125 +91,204 @@ static void process_event(const char *event) | |
| spawn((char **)args + (0==(st.st_mode & S_IFDIR))); | |
| else | |
| bb_simple_perror_msg(event); | |
| + | |
| free(handler); | |
| } | |
| + | static const char *find_action(struct input_event *ev, const char *buf) |
| + | { |
| + | const char *action = NULL; |
| + | int i; |
| + | |
| + | // map event |
| + | for (i = 0; i < n_evt; i++) { |
| + | if (ev) { |
| + | if (ev->type == evt_tab[i].n_type && ev->code == evt_tab[i].n_code && ev->value == evt_tab[i].value) { |
| + | action = evt_tab[i].desc; |
| + | break; |
| + | } |
| + | } |
| + | |
| + | if (buf) { |
| + | if (strncmp(buf, evt_tab[i].desc, strlen(buf)) == 0) { |
| + | action = evt_tab[i].desc; |
| + | break; |
| + | } |
| + | } |
| + | } |
| + | |
| + | // get action |
| + | if (action) { |
| + | for (i = 0; i < n_act; i++) { |
| + | if (strstr(action, act_tab[i].key)) { |
| + | action = act_tab[i].action; |
| + | break; |
| + | } |
| + | } |
| + | } |
| + | |
| + | return action; |
| + | } |
| + | |
| + | static void parse_conf_file(const char *filename) |
| + | { |
| + | parser_t *parser; |
| + | char *tokens[2]; |
| + | |
| + | parser = config_open2(filename, fopen_for_read); |
| + | |
| + | if (parser) { |
| + | while (config_read(parser, tokens, 2, 2, "# \t", PARSE_NORMAL)) { |
| + | act_tab = xrealloc_vector(act_tab, 1, n_act); |
| + | act_tab[n_act].key = xstrdup(tokens[0]); |
| + | act_tab[n_act].action = xstrdup(tokens[1]); |
| + | n_act++; |
| + | } |
| + | config_close(parser); |
| + | } else { |
| + | act_tab = (void*)f_act_tab; |
| + | n_act = ARRAY_SIZE(f_act_tab); |
| + | } |
| + | } |
| + | |
| + | static void parse_map_file(const char *filename) |
| + | { |
| + | parser_t *parser; |
| + | char *tokens[6]; |
| + | |
| + | parser = config_open2(filename, fopen_for_read); |
| + | |
| + | if (parser) { |
| + | while (config_read(parser, tokens, 6, 6, "# \t", PARSE_NORMAL)) { |
| + | evt_tab = xrealloc_vector(evt_tab, 1, n_evt); |
| + | evt_tab[n_evt].s_type = xstrdup(tokens[0]); |
| + | evt_tab[n_evt].n_type = xstrtou(tokens[1], 16); |
| + | evt_tab[n_evt].s_code = xstrdup(tokens[2]); |
| + | evt_tab[n_evt].n_code = xatou16(tokens[3]); |
| + | evt_tab[n_evt].value = xatoi_positive(tokens[4]); |
| + | evt_tab[n_evt].desc = xstrdup(tokens[5]); |
| + | n_evt++; |
| + | } |
| + | config_close(parser); |
| + | } else { |
| + | evt_tab = (void*)f_evt_tab; |
| + | n_evt = ARRAY_SIZE(f_evt_tab); |
| + | } |
| + | } |
| + | |
| /* | |
| - | * acpid [-c conf_dir] [-l log_file] [-e proc_event_file] [evdev_event_file...] |
| - | */ |
| + | * acpid [-c conf_dir] [-r conf_file ] [-a map_file ] [-l log_file] [-e proc_event_file] |
| + | */ |
| int acpid_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; | |
| - | int acpid_main(int argc, char **argv) |
| + | int acpid_main(int argc UNUSED_PARAM, char **argv) |
| { | |
| + | struct input_event ev; |
| + | int nfd; |
| + | int opts; |
| struct pollfd *pfd; | |
| - | int i, nfd; |
| - | const char *opt_conf = "/etc/acpi"; |
| - | const char *opt_input = "/proc/acpi/event"; |
| + | const char *opt_dir = "/etc/acpi"; |
| + | const char *opt_input = "/dev/input/event"; |
| const char *opt_logfile = "/var/log/acpid.log"; | |
| + | const char *opt_action = "/etc/acpid.conf"; |
| + | const char *opt_map = "/etc/acpi.map"; |
| + | #if ENABLE_FEATURE_PIDFILE |
| + | const char *opt_pidfile = "/var/run/acpid.pid"; |
| + | #endif |
| + | |
| + | INIT_G(); |
| - | getopt32(argv, "c:e:l:d" |
| - | IF_FEATURE_ACPID_COMPAT("g:m:s:S:v"), |
| - | &opt_conf, &opt_input, &opt_logfile |
| - | IF_FEATURE_ACPID_COMPAT(, NULL, NULL, NULL, NULL, NULL) |
| + | opt_complementary = "df:e--e"; |
| + | opts = getopt32(argv, "c:de:fl:p:a:M:" IF_FEATURE_ACPID_COMPAT("g:m:s:S:v"), |
| + | &opt_dir, &opt_input, &opt_logfile, &opt_pidfile, &opt_action, &opt_map |
| + | IF_FEATURE_ACPID_COMPAT(, NULL, NULL, NULL, NULL) |
| ); | |
| - | // daemonize unless -d given |
| - | if (!(option_mask32 & 8)) { // ! -d |
| - | bb_daemonize_or_rexec(0, argv); |
| - | close(2); |
| - | xopen(opt_logfile, O_WRONLY | O_CREAT | O_TRUNC); |
| + | if (!(opts & OPT_f)) { |
| + | bb_daemonize_or_rexec(DAEMON_CLOSE_EXTRA_FDS, argv); |
| } | |
| - | argv += optind; |
| - | argc -= optind; |
| + | if (!(opts & OPT_d)) { |
| + | openlog(applet_name, LOG_PID, LOG_DAEMON); |
| + | logmode = LOGMODE_SYSLOG | LOGMODE_STDIO; |
| + | } else { |
| + | xmove_fd(xopen(opt_logfile, O_WRONLY | O_CREAT | O_TRUNC), STDOUT_FILENO); |
| + | } |
| - | // goto configuration directory |
| - | xchdir(opt_conf); |
| + | parse_conf_file(opt_action); |
| + | parse_map_file(opt_map); |
| - | // prevent zombies |
| - | signal(SIGCHLD, SIG_IGN); |
| + | xchdir(opt_dir); |
| - | // no explicit evdev files given? -> use proc event interface |
| - | if (!*argv) { |
| - | // proc_event file is just a "config" :) |
| - | char *token[4]; |
| - | parser_t *parser = config_open(opt_input); |
| + | bb_signals((1 << SIGCHLD), SIG_IGN); |
| + | bb_signals(BB_FATAL_SIGS, record_signo); |
| - | // dispatch events |
| - | while (config_read(parser, token, 4, 4, "\0 ", PARSE_NORMAL)) { |
| - | char *event = xasprintf("%s/%s", token[1], token[2]); |
| - | process_event(event); |
| - | free(event); |
| - | } |
| + | pfd = NULL; |
| + | nfd = 0; |
| + | while (1) { |
| + | int fd; |
| + | char *dev_event; |
| - | if (ENABLE_FEATURE_CLEAN_UP) |
| - | config_close(parser); |
| - | return EXIT_SUCCESS; |
| + | dev_event = xasprintf((option_mask32 & OPT_e) ? "%s" : "%s%u", opt_input, nfd); |
| + | fd = open(dev_event, O_RDONLY | O_NONBLOCK); |
| + | if (fd < 0) { |
| + | if (nfd == 0) |
| + | bb_simple_perror_msg_and_die(dev_event); |
| + | break; |
| + | } |
| + | pfd = xrealloc_vector(pfd, 1, nfd); |
| + | pfd[nfd].fd = fd; |
| + | pfd[nfd].events = POLLIN; |
| + | nfd++; |
| } | |
| - | // evdev files given, use evdev interface |
| - | |
| - | // open event devices |
| - | pfd = xzalloc(sizeof(*pfd) * argc); |
| - | nfd = 0; |
| - | while (*argv) { |
| - | pfd[nfd].fd = open_or_warn(*argv++, O_RDONLY | O_NONBLOCK); |
| - | if (pfd[nfd].fd >= 0) |
| - | pfd[nfd++].events = POLLIN; |
| - | } |
| + | write_pidfile(opt_pidfile); |
| - | // dispatch events |
| - | while (/* !bb_got_signal && */ poll(pfd, nfd, -1) > 0) { |
| + | while (poll(pfd, nfd, -1) > 0) { |
| + | int i; |
| for (i = 0; i < nfd; i++) { | |
| - | const char *event; |
| - | struct input_event ev; |
| + | const char *event = NULL; |
| - | if (!(pfd[i].revents & POLLIN)) |
| - | continue; |
| + | memset(&ev, 0, sizeof(ev)); |
| - | if (sizeof(ev) != full_read(pfd[i].fd, &ev, sizeof(ev))) |
| - | continue; |
| - | //bb_info_msg("%d: %d %d %4d", i, ev.type, ev.code, ev.value); |
| - | |
| - | // filter out unneeded events |
| - | if (ev.value != 1) |
| + | if (!(pfd[i].revents & POLLIN)) |
| continue; | |
| - | event = NULL; |
| + | if (option_mask32 & OPT_e) { |
| + | char *buf; |
| + | int len; |
| - | // N.B. we will conform to /proc/acpi/event |
| - | // naming convention when assigning event names |
| + | buf = xmalloc_reads(pfd[i].fd, NULL, NULL); |
| + | /* buf = "button/power PWRB 00000080 00000000" */ |
| + | len = strlen(buf) - 9; |
| + | if (len >= 0) |
| + | buf[len] = '\0'; |
| + | event = find_action(NULL, buf); |
| + | } else { |
| + | if (sizeof(ev) != full_read(pfd[i].fd, &ev, sizeof(ev))) |
| + | continue; |
| - | // TODO: do we want other events? |
| + | if (ev.value != 1 && ev.value != 0) |
| + | continue; |
| - | // power and sleep buttons delivered as keys pressed |
| - | if (EV_KEY == ev.type) { |
| - | if (KEY_POWER == ev.code) |
| - | event = "PWRF/00000080"; |
| - | else if (KEY_SLEEP == ev.code) |
| - | event = "SLPB/00000080"; |
| - | } |
| - | // switches |
| - | else if (EV_SW == ev.type) { |
| - | if (SW_LID == ev.code) |
| - | event = "LID/00000080"; |
| - | else if (SW_RFKILL_ALL == ev.code) |
| - | event = "RFKILL"; |
| + | event = find_action(&ev, NULL); |
| } | |
| - | // filter out unneeded events |
| if (!event) | |
| continue; | |
| - | |
| // spawn event handler | |
| process_event(event); | |
| } | |
| } | |
| if (ENABLE_FEATURE_CLEAN_UP) { | |
| - | for (i = 0; i < nfd; i++) |
| - | close(pfd[i].fd); |
| + | while (nfd--) { |
| + | if (pfd[nfd].fd) { |
| + | close(pfd[nfd].fd); |
| + | } |
| + | } |
| free(pfd); | |
| } | |
| + | remove_pidfile(opt_pidfile); |
| return EXIT_SUCCESS; | |
| } | |