X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=service.c;h=c13cf2f5e162fb42da23b0863e4fb81049989d24;hp=83a11e94f9356cf88813fb027bfbbfd89f1abb3c;hb=fbe9f3a92dcb585c14faf06ef9017f552e405222;hpb=e93bc5a61f8589f01e779ab2b5ffc7c7ca072074 diff --git a/service.c b/service.c index 83a11e94f..c13cf2f5e 100644 --- a/service.c +++ b/service.c @@ -37,17 +37,37 @@ #define NEWLINES "\n\r" #define LINE_MAX 4096 -static const char * const rcnd_table[] = { - "/rc0.d", SPECIAL_RUNLEVEL0_TARGET, - "/rc1.d", SPECIAL_RUNLEVEL1_TARGET, - "/rc2.d", SPECIAL_RUNLEVEL2_TARGET, - "/rc3.d", SPECIAL_RUNLEVEL3_TARGET, - "/rc4.d", SPECIAL_RUNLEVEL4_TARGET, - "/rc5.d", SPECIAL_RUNLEVEL5_TARGET, - "/rc6.d", SPECIAL_RUNLEVEL6_TARGET, - "/boot.d", SPECIAL_BASIC_TARGET +typedef enum RunlevelType { + RUNLEVEL_UP, + RUNLEVEL_DOWN, + RUNLEVEL_BASIC +} RunlevelType; + +static const struct { + const char *path; + const char *target; + const RunlevelType type; +} rcnd_table[] = { + /* Standard SysV runlevels */ + { "rc0.d", SPECIAL_RUNLEVEL0_TARGET, RUNLEVEL_DOWN }, + { "rc1.d", SPECIAL_RUNLEVEL1_TARGET, RUNLEVEL_UP }, + { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP }, + { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP }, + { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP }, + { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP }, + { "rc6.d", SPECIAL_RUNLEVEL6_TARGET, RUNLEVEL_DOWN }, + + /* SuSE style boot.d */ + { "boot.d", SPECIAL_BASIC_TARGET, RUNLEVEL_BASIC }, + + /* Debian style rcS.d */ + { "rcS.d", SPECIAL_BASIC_TARGET, RUNLEVEL_BASIC }, }; +#define RUNLEVELS_UP "12345" +/* #define RUNLEVELS_DOWN "06" */ +/* #define RUNLEVELS_BOOT "bBsS" */ + static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { [SERVICE_DEAD] = UNIT_INACTIVE, [SERVICE_START_PRE] = UNIT_ACTIVATING, @@ -273,66 +293,6 @@ static int sysv_exec_commands(Service *s) { return 0; } -static int priority_from_rcd(Service *s, const char *init_script) { - char **p; - unsigned i; - - STRV_FOREACH(p, UNIT(s)->meta.manager->sysvrcnd_path) - for (i = 0; i < ELEMENTSOF(rcnd_table); i += 2) { - char *path; - DIR *d; - struct dirent *de; - - if (asprintf(&path, "%s/%s", *p, rcnd_table[i]) < 0) - return -ENOMEM; - - d = opendir(path); - free(path); - - if (!d) { - if (errno != ENOENT) - log_warning("opendir() failed on %s: %s", path, strerror(errno)); - - continue; - } - - while ((de = readdir(d))) { - int a, b; - - if (ignore_file(de->d_name)) - continue; - - if (de->d_name[0] != 'S') - continue; - - if (strlen(de->d_name) < 4) - continue; - - if (!streq(de->d_name + 3, init_script)) - continue; - - /* Yay, we found it! Now decode the priority */ - - a = undecchar(de->d_name[1]); - b = undecchar(de->d_name[2]); - - if (a < 0 || b < 0) - continue; - - s->sysv_start_priority = a*10 + b; - - log_debug("Determined priority %i from link farm for %s", s->sysv_start_priority, UNIT(s)->meta.id); - - closedir(d); - return 0; - } - - closedir(d); - } - - return 0; -} - static int service_load_sysv_path(Service *s, const char *path) { FILE *f; Unit *u; @@ -414,9 +374,12 @@ static int service_load_sysv_path(Service *s, const char *path) { continue; } + /* A start priority gathered from the + * symlink farms is preferred over the + * data from the LSB header. */ if (start_priority < 0 || start_priority > 99) log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line); - else + else if (s->sysv_start_priority < 0) s->sysv_start_priority = start_priority; char_array_0(runlevels); @@ -434,7 +397,6 @@ static int service_load_sysv_path(Service *s, const char *path) { s->sysv_runlevels = d; } - } else if (startswith(t, "description:")) { size_t k = strlen(t); @@ -634,20 +596,13 @@ static int service_load_sysv_path(Service *s, const char *path) { * a priority for *all* init scripts here, since they are * needed as soon as at least one non-LSB script is used. */ - if (s->sysv_start_priority < 0) { - log_debug("%s has no chkconfig header, trying to determine SysV priority from link farm.", u->meta.id); - - if ((r = priority_from_rcd(s, file_name_from_path(path))) < 0) - goto finish; - - if (s->sysv_start_priority < 0) - log_warning("%s has neither a chkconfig header nor a directory link, cannot order unit!", u->meta.id); - } + if (s->sysv_start_priority < 0) + log_warning("%s has neither a chkconfig header nor a directory link, cannot order unit!", u->meta.id); if ((r = sysv_exec_commands(s)) < 0) goto finish; - if (!s->sysv_runlevels || chars_intersect("12345", s->sysv_runlevels)) { + if (!s->sysv_runlevels || chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) { /* If there a runlevels configured for this service * but none of the standard ones, then we assume this * is some special kind of service (which might be @@ -657,14 +612,14 @@ static int service_load_sysv_path(Service *s, const char *path) { if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0 || (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true)) < 0) goto finish; - } + + } else + /* Don't timeout special services during boot (like fsck) */ + s->timeout_usec = 0; /* Special setting for all SysV services */ s->valid_no_process = true; - - /* Don't timeout special services during boot (like fsck) */ - if (s->sysv_runlevels && !chars_intersect("12345", s->sysv_runlevels)) - s->timeout_usec = -1; + s->kill_mode = KILL_PROCESS_GROUP; u->meta.load_state = UNIT_LOADED; r = 0; @@ -694,8 +649,26 @@ static int service_load_sysv_name(Service *s, const char *name) { path[strlen(path)-8] = 0; r = service_load_sysv_path(s, path); + + if (r >= 0 && UNIT(s)->meta.load_state == UNIT_STUB) { + /* Try Debian style .sh source'able init scripts */ + strcat(path, ".sh"); + r = service_load_sysv_path(s, path); + } + free(path); + if (r >= 0 && UNIT(s)->meta.load_state == UNIT_STUB) { + /* Try Suse style boot.xxxx init scripts */ + + if (asprintf(&path, "%s/boot.%s", *p, name) < 0) + return -ENOMEM; + + path[strlen(path)-8] = 0; + r = service_load_sysv_path(s, path); + free(path); + } + if (r < 0) return r; @@ -1241,6 +1214,7 @@ static int service_spawn( argv, &s->exec_context, fds, n_fds, + s->meta.manager->environment, apply_permissions, apply_chroot, UNIT(s)->meta.manager->confirm_spawn, @@ -2187,12 +2161,12 @@ static int service_enumerate(Manager *m) { assert(m); STRV_FOREACH(p, m->sysvrcnd_path) - for (i = 0; i < ELEMENTSOF(rcnd_table); i += 2) { + for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) { struct dirent *de; free(path); path = NULL; - if (asprintf(&path, "%s/%s", *p, rcnd_table[i]) < 0) { + if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) { r = -ENOMEM; goto finish; } @@ -2209,6 +2183,7 @@ static int service_enumerate(Manager *m) { while ((de = readdir(d))) { Unit *service; + int a, b; if (ignore_file(de->d_name)) continue; @@ -2219,9 +2194,15 @@ static int service_enumerate(Manager *m) { if (strlen(de->d_name) < 4) continue; + a = undecchar(de->d_name[1]); + b = undecchar(de->d_name[2]); + + if (a < 0 || b < 0) + continue; + free(fpath); fpath = NULL; - if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i], de->d_name) < 0) { + if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) { r = -ENOMEM; goto finish; } @@ -2235,19 +2216,38 @@ static int service_enumerate(Manager *m) { } free(name); - name = NULL; - if (asprintf(&name, "%s.service", de->d_name+3) < 0) { + if (!(name = new(char, strlen(de->d_name) - 3 + 8 + 1))) { r = -ENOMEM; goto finish; } - if ((r = manager_load_unit(m, name, NULL, &service)) < 0) - goto finish; + if (startswith(de->d_name+3, "boot.")) + /* Drop SuSE-style boot. prefix */ + strcpy(stpcpy(name, de->d_name + 3 + 5), ".service"); + else if (endswith(de->d_name+3, ".sh")) + /* Drop Debian-style .sh suffix */ + strcpy(stpcpy(name, de->d_name + 3) - 3, ".service"); + else + /* Normal init scripts */ + strcpy(stpcpy(name, de->d_name + 3), ".service"); + + if ((r = manager_load_unit_prepare(m, name, NULL, &service)) < 0) { + log_warning("Failed to prepare unit %s: %s", name, strerror(-r)); + continue; + } + + if (de->d_name[0] == 'S' && + (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_BASIC)) + SERVICE(service)->sysv_start_priority = + MAX(a*10 + b, SERVICE(service)->sysv_start_priority); + + manager_dispatch_load_queue(m); + service = unit_follow_merge(service); if (de->d_name[0] == 'S') { Unit *runlevel_target; - if ((r = manager_load_unit(m, rcnd_table[i+1], NULL, &runlevel_target)) < 0) + if ((r = manager_load_unit(m, rcnd_table[i].target, NULL, &runlevel_target)) < 0) goto finish; if ((r = unit_add_dependency(runlevel_target, UNIT_WANTS, service, true)) < 0) @@ -2256,10 +2256,7 @@ static int service_enumerate(Manager *m) { if ((r = unit_add_dependency(service, UNIT_BEFORE, runlevel_target, true)) < 0) goto finish; - } else if (de->d_name[0] == 'K' && - (streq(rcnd_table[i+1], SPECIAL_RUNLEVEL0_TARGET) || - streq(rcnd_table[i+1], SPECIAL_RUNLEVEL6_TARGET))) { - + } else if (de->d_name[0] == 'K' && rcnd_table[i].type == RUNLEVEL_DOWN) { Unit *shutdown_target; /* We honour K links only for @@ -2291,7 +2288,9 @@ finish: free(path); free(fpath); free(name); - closedir(d); + + if (d) + closedir(d); return r; }