diff options
| -rw-r--r-- | include/usage.src.h | 14 | ||||
| -rw-r--r-- | util-linux/acpid.c | 306 |
2 files changed, 218 insertions, 102 deletions
diff --git a/include/usage.src.h b/include/usage.src.h index 2866bdbba..922774674 100644 --- a/include/usage.src.h +++ b/include/usage.src.h @@ -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" diff --git a/util-linux/acpid.c b/util-linux/acpid.c index c3b3c8b0b..5a3bd5a6a 100644 --- a/util-linux/acpid.c +++ b/util-linux/acpid.c @@ -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; } |