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-rw-r--r--manager.h17
-rw-r--r--service.c583
-rw-r--r--service.h3
3 files changed, 602 insertions, 1 deletions
diff --git a/manager.h b/manager.h
index 900c3fa4db..870db97bc0 100644
--- a/manager.h
+++ b/manager.h
@@ -75,6 +75,23 @@ struct Watch {
#define SPECIAL_LOGGER_SOCKET "systemd-logger.socket"
#define SPECIAL_KBREQUEST_TARGET "kbrequest.target"
#define SPECIAL_CTRL_ALT_DEL_TARGET "ctrl-alt-del.target"
+#define SPECIAL_LOCAL_FS_TARGET "local-fs.target"
+#define SPECIAL_NETWORK_TARGET "network.target"
+#define SPECIAL_NSS_LOOKUP_TARGET "nss-lookup.target" /* LSB's $named */
+#define SPECIAL_RPCBIND_TARGET "rpcbind.target" /* LSB's $portmap */
+#define SPECIAL_REMOTE_FS_TARGET "remote-fs.target"
+#define SPECIAL_SYSLOG_TARGET "syslog.target" /* Should pull in syslog.socket or syslog.service */
+#define SPECIAL_RTC_SET_TARGET "rtc-set.target" /* LSB's $time */
+
+/* For SysV compatibility. Usually an alias for a saner target. On
+ * SysV-free systems this doesn't exist. */
+#define SPECIAL_RUNLEVEL0_TARGET "runlevel0.target"
+#define SPECIAL_RUNLEVEL1_TARGET "runlevel1.target"
+#define SPECIAL_RUNLEVEL2_TARGET "runlevel2.target"
+#define SPECIAL_RUNLEVEL3_TARGET "runlevel3.target"
+#define SPECIAL_RUNLEVEL4_TARGET "runlevel4.target"
+#define SPECIAL_RUNLEVEL5_TARGET "runlevel5.target"
+#define SPECIAL_RUNLEVEL6_TARGET "runlevel6.target"
struct Manager {
/* In which mode are we running */
diff --git a/service.c b/service.c
index 67950d4e64..a983e0db93 100644
--- a/service.c
+++ b/service.c
@@ -21,12 +21,19 @@
#include <errno.h>
#include <signal.h>
+#include <dirent.h>
+#include <unistd.h>
#include "unit.h"
#include "service.h"
#include "load-fragment.h"
#include "load-dropin.h"
#include "log.h"
+#include "strv.h"
+
+#define COMMENTS "#;\n"
+#define NEWLINES "\n\r"
+#define LINE_MAX 4096
static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
[SERVICE_DEAD] = UNIT_INACTIVE,
@@ -53,6 +60,9 @@ static void service_done(Unit *u) {
free(s->pid_file);
s->pid_file = NULL;
+ free(s->sysv_path);
+ s->sysv_path = NULL;
+
exec_context_done(&s->exec_context);
exec_command_free_array(s->exec_command, _SERVICE_EXEC_MAX);
s->control_command = NULL;
@@ -72,13 +82,457 @@ static void service_done(Unit *u) {
unit_unwatch_timer(u, &s->timer_watch);
}
+static int sysv_translate_name(const char *name, char **_r) {
+
+ static const char * const table[] = {
+ "$local_fs", SPECIAL_LOCAL_FS_TARGET,
+ "$network", SPECIAL_NETWORK_TARGET,
+ "$named", SPECIAL_NSS_LOOKUP_TARGET,
+ "$portmap", SPECIAL_RPCBIND_TARGET,
+ "$remote_fs", SPECIAL_REMOTE_FS_TARGET,
+ "$syslog", SPECIAL_SYSLOG_TARGET,
+ "$time", SPECIAL_RTC_SET_TARGET
+ };
+
+ unsigned i;
+ char *r;
+
+ for (i = 0; i < ELEMENTSOF(table); i += 2)
+ if (streq(table[i], name)) {
+ if (!(r = strdup(table[i+1])))
+ return -ENOMEM;
+
+ goto finish;
+ }
+
+ if (*name == '$')
+ return 0;
+
+ if (asprintf(&r, "%s.service", name) < 0)
+ return -ENOMEM;
+
+finish:
+
+ if (_r)
+ *_r = r;
+
+ return 1;
+}
+
+static int sysv_chkconfig_order(Service *s) {
+ Meta *other;
+ int r;
+
+ assert(s);
+
+ if (s->sysv_start_priority < 0)
+ return 0;
+
+ /* If no LSB header is found we try to order init scripts via
+ * the start priority of the chkconfig header. */
+
+ LIST_FOREACH(units_per_type, other, UNIT(s)->meta.manager->units_per_type[UNIT_SERVICE]) {
+ Service *t;
+ UnitDependency d;
+
+ t = (Service*) other;
+
+ if (s == t)
+ continue;
+
+ if (t->sysv_start_priority < 0)
+ continue;
+
+ if (t->sysv_start_priority < s->sysv_start_priority)
+ d = UNIT_AFTER;
+ else if (t->sysv_start_priority > s->sysv_start_priority)
+ d = UNIT_BEFORE;
+ else
+ continue;
+
+ /* FIXME: Maybe we should compare the name here lexicographically? */
+
+ if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t))) < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static ExecCommand *exec_command_new(const char *path, const char *arg1) {
+ ExecCommand *c;
+
+ if (!(c = new0(ExecCommand, 1)))
+ return NULL;
+
+ if (!(c->path = strdup(path))) {
+ free(c);
+ return NULL;
+ }
+
+ if (!(c->argv = strv_new(path, arg1, NULL))) {
+ free(c->path);
+ free(c);
+ return NULL;
+ }
+
+ return c;
+}
+
+static int sysv_exec_commands(Service *s) {
+ ExecCommand *c;
+
+ assert(s);
+ assert(s->sysv_path);
+
+ if (!(c = exec_command_new(s->sysv_path, "start")))
+ return -ENOMEM;
+ exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
+
+ if (!(c = exec_command_new(s->sysv_path, "stop")))
+ return -ENOMEM;
+ exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
+
+ if (!(c = exec_command_new(s->sysv_path, "reload")))
+ return -ENOMEM;
+ exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
+
+ return 0;
+}
+
+static int service_load_sysv_path(Service *s, const char *path) {
+ FILE *f;
+ Unit *u;
+ unsigned line = 0;
+ int r;
+ enum {
+ NORMAL,
+ DESCRIPTION,
+ LSB,
+ LSB_DESCRIPTION
+ } state = NORMAL;
+ bool has_lsb = false;
+
+ u = UNIT(s);
+
+ if (!(f = fopen(path, "re"))) {
+ r = errno == ENOENT ? 0 : -errno;
+ goto finish;
+ }
+
+ s->type = SERVICE_FORKING;
+ s->restart = SERVICE_ONCE;
+
+ free(s->sysv_path);
+ if (!(s->sysv_path = strdup(path))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ while (!feof(f)) {
+ char l[LINE_MAX], *t;
+
+ if (!fgets(l, sizeof(l), f)) {
+ if (feof(f))
+ break;
+
+ r = -errno;
+ log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
+ goto finish;
+ }
+
+ line++;
+
+ t = strstrip(l);
+ if (*t != '#')
+ continue;
+
+ if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
+ state = LSB;
+ has_lsb = true;
+ continue;
+ }
+
+ if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
+ state = NORMAL;
+ continue;
+ }
+
+ t++;
+ t += strspn(t, WHITESPACE);
+
+ if (state == NORMAL) {
+
+ /* Try to parse Red Hat style chkconfig headers */
+
+ if (startswith(t, "chkconfig:")) {
+ int start_priority;
+
+ state = NORMAL;
+
+ if (sscanf(t+10, "%*15s %i %*i",
+ &start_priority) != 1) {
+
+ log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
+ continue;
+ }
+
+ if (start_priority < 0 || start_priority > 99) {
+ log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
+ continue;
+ }
+
+ s->sysv_start_priority = start_priority;
+
+ } else if (startswith(t, "description:")) {
+
+ size_t k = strlen(t);
+ char *d;
+
+ if (t[k-1] == '\\') {
+ state = DESCRIPTION;
+ t[k-1] = 0;
+ }
+
+ if (!(d = strdup(strstrip(t+12)))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(u->meta.description);
+ u->meta.description = d;
+
+ } else if (startswith(t, "pidfile:")) {
+
+ char *fn;
+
+ state = NORMAL;
+
+ fn = strstrip(t+8);
+ if (!path_is_absolute(fn)) {
+ log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
+ continue;
+ }
+
+ if (!(fn = strdup(fn))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(s->pid_file);
+ s->pid_file = fn;
+ }
+
+ } else if (state == DESCRIPTION) {
+
+ /* Try to parse Red Hat style description
+ * continuation */
+
+ size_t k = strlen(t);
+ char *d;
+
+ if (t[k-1] == '\\')
+ t[k-1] = 0;
+ else
+ state = NORMAL;
+
+ assert(u->meta.description);
+ if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(u->meta.description);
+ u->meta.description = d;
+
+ } else if (state == LSB || state == LSB_DESCRIPTION) {
+
+ if (startswith(t, "Provides:")) {
+ char *i, *w;
+ size_t z;
+
+ state = LSB;
+
+ FOREACH_WORD(w, z, t+9, i) {
+ char *n, *m;
+
+ if (!(n = strndup(w, z))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ r = sysv_translate_name(n, &m);
+ free(n);
+
+ if (r < 0)
+ goto finish;
+
+ if (r == 0)
+ continue;
+
+ r = unit_add_name(u, m);
+ free(m);
+
+ if (r < 0)
+ goto finish;
+ }
+
+ } else if (startswith(t, "Required-Start:") ||
+ startswith(t, "Should-Start:")) {
+ char *i, *w;
+ size_t z;
+
+ state = LSB;
+
+ FOREACH_WORD(w, z, strchr(t, ':')+1, i) {
+ char *n, *m;
+
+ if (!(n = strndup(w, z))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ r = sysv_translate_name(n, &m);
+ free(n);
+
+ if (r < 0)
+ goto finish;
+
+ if (r == 0)
+ continue;
+
+ if (!(r = unit_add_dependency_by_name(u, UNIT_AFTER, m)) < 0) {
+ free(m);
+ goto finish;
+ }
+
+ r = unit_add_dependency_by_name(
+ u,
+ startswith(t, "Required-Start:") ? UNIT_REQUIRES : UNIT_WANTS,
+ m);
+ free(m);
+
+ if (r < 0)
+ goto finish;
+ }
+
+ } else if (startswith(t, "Description:")) {
+ char *d;
+
+ state = LSB_DESCRIPTION;
+
+ if (!(d = strdup(strstrip(t+12)))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(u->meta.description);
+ u->meta.description = d;
+
+ } else if (startswith(t, "Short-Description:") && !u->meta.description) {
+ char *d;
+
+ /* We use the short description only
+ * if no long description is set. */
+
+ state = LSB;
+
+ if (!(d = strdup(strstrip(t+18)))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(u->meta.description);
+ u->meta.description = d;
+
+ } else if (state == LSB_DESCRIPTION) {
+
+ if (startswith(l, "#\t") || startswith(l, "# ")) {
+ char *d;
+
+ assert(u->meta.description);
+ if (asprintf(&d, "%s %s", u->meta.description, t) < 0) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ free(u->meta.description);
+ u->meta.description = d;
+ } else
+ state = LSB;
+ }
+ }
+ }
+
+ /* If the init script has no LSB header, then let's
+ * enforce the ordering via the chkconfig
+ * priorities */
+
+ if (!has_lsb)
+ if ((r = sysv_chkconfig_order(s)) < 0)
+ goto finish;
+
+ if ((r = sysv_exec_commands(s)) < 0)
+ goto finish;
+
+ r = 1;
+
+finish:
+
+ if (f)
+ fclose(f);
+
+ return r;
+}
+
+static int service_load_sysv_name(Service *s, const char *name) {
+ char **p;
+
+ assert(s);
+ assert(name);
+
+ STRV_FOREACH(p, UNIT(s)->meta.manager->sysvinit_path) {
+ char *path;
+ int r;
+
+ if (asprintf(&path, "%s/%s", *p, name) < 0)
+ return -ENOMEM;
+
+ assert(endswith(path, ".service"));
+ path[strlen(path)-8] = 0;
+
+ r = service_load_sysv_path(s, path);
+ free(path);
+
+ if (r >= 0)
+ return r;
+ }
+
+ return 0;
+}
+
static int service_load_sysv(Service *s) {
+ const char *t;
+ Iterator i;
+ int r;
+
assert(s);
/* Load service data from SysV init scripts, preferably with
* LSB headers ... */
- return -ENOENT;
+ if (strv_isempty(UNIT(s)->meta.manager->sysvinit_path))
+ return 0;
+
+ if ((t = unit_id(UNIT(s))))
+ if ((r = service_load_sysv_name(s, t)) != 0)
+ return r;
+
+ SET_FOREACH(t, UNIT(s)->meta.names, i)
+ if ((r == service_load_sysv_name(s, t)) != 0)
+ return r;
+
+ return 0;
}
static int service_init(Unit *u) {
@@ -102,6 +556,8 @@ static int service_init(Unit *u) {
s->state = SERVICE_DEAD;
+ s->sysv_start_priority = -1;
+
RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
/* Load a .service file */
@@ -161,6 +617,16 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) {
exec_command_dump_list(s->exec_command[c], f, prefix2);
}
+ if (s->sysv_path)
+ fprintf(f,
+ "%sSysV Init Script Path: %s\n",
+ prefix, s->sysv_path);
+
+ if (s->sysv_start_priority >= 0)
+ fprintf(f,
+ "%sSysV Start Priority: %i\n",
+ prefix, s->sysv_start_priority);
+
free(p2);
}
@@ -1053,6 +1519,119 @@ static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
}
}
+static int service_enumerate(Manager *m) {
+
+ static const char * const rcnd[] = {
+ "../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
+ };
+
+ char **p;
+ unsigned i;
+ DIR *d = NULL;
+ char *path = NULL, *fpath = NULL, *name = NULL;
+ int r;
+
+ assert(m);
+
+ STRV_FOREACH(p, m->sysvinit_path)
+ for (i = 0; i < ELEMENTSOF(rcnd); i += 2) {
+ struct dirent *de;
+
+ free(path);
+ path = NULL;
+ if (asprintf(&path, "%s/%s", *p, rcnd[i]) < 0) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (d)
+ closedir(d);
+
+ if (!(d = opendir(path))) {
+ if (errno != ENOENT)
+ log_warning("opendir() failed on %s: %s", path, strerror(errno));
+
+ continue;
+ }
+
+ while ((de = readdir(d))) {
+ Unit *runlevel, *service;
+
+ if (ignore_file(de->d_name))
+ continue;
+
+ if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
+ continue;
+
+ if (strlen(de->d_name) < 4)
+ continue;
+
+ free(fpath);
+ fpath = NULL;
+ if (asprintf(&fpath, "%s/%s/%s", *p, rcnd[i], de->d_name) < 0) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (access(fpath, X_OK) < 0) {
+
+ if (errno != ENOENT)
+ log_warning("access() failed on %s: %s", fpath, strerror(errno));
+
+ continue;
+ }
+
+ free(name);
+ name = NULL;
+ if (asprintf(&name, "%s.service", de->d_name+3) < 0) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if ((r = manager_load_unit(m, name, &service)) < 0)
+ goto finish;
+
+ /* Don't allow that non-SysV services
+ * are started via rcN.d/ links. */
+ if (!SERVICE(service)->sysv_path)
+ continue;
+
+ if ((r = manager_load_unit(m, rcnd[i+1], &runlevel)) < 0)
+ goto finish;
+
+ if (de->d_name[0] == 'S') {
+ if ((r = unit_add_dependency(runlevel, UNIT_WANTS, service)) < 0)
+ goto finish;
+
+ if ((r = unit_add_dependency(runlevel, UNIT_AFTER, service)) < 0)
+ goto finish;
+ } else {
+ if ((r = unit_add_dependency(runlevel, UNIT_CONFLICTS, service)) < 0)
+ goto finish;
+
+ if ((r = unit_add_dependency(runlevel, UNIT_BEFORE, service)) < 0)
+ goto finish;
+ }
+ }
+ }
+
+ r = 0;
+
+finish:
+ free(path);
+ free(fpath);
+ free(name);
+ closedir(d);
+
+ return r;
+}
+
static const char* const service_state_table[_SERVICE_STATE_MAX] = {
[SERVICE_DEAD] = "dead",
[SERVICE_START_PRE] = "start-pre",
@@ -1117,4 +1696,6 @@ const UnitVTable service_vtable = {
.sigchld_event = service_sigchld_event,
.timer_event = service_timer_event,
+
+ .enumerate = service_enumerate
};
diff --git a/service.h b/service.h
index fef100bad9..0c0850a81f 100644
--- a/service.h
+++ b/service.h
@@ -99,6 +99,9 @@ struct Service {
bool failure:1; /* if we shut down, remember why */
Watch timer_watch;
+ char *sysv_path;
+ int sysv_start_priority;
+
RateLimit ratelimit;
};
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-02 17:19:49 +0000